diff options
Diffstat (limited to 'net')
112 files changed, 3312 insertions, 2554 deletions
diff --git a/net/9p/client.c b/net/9p/client.c index a170893d70e0..8260f132b32e 100644 --- a/net/9p/client.c +++ b/net/9p/client.c @@ -1548,7 +1548,7 @@ p9_client_read(struct p9_fid *fid, char *data, char __user *udata, u64 offset, kernel_buf = 1; indata = data; } else - indata = (char *)udata; + indata = (__force char *)udata; /* * response header len is 11 * PDU Header(7) + IO Size (4) diff --git a/net/atm/lec.c b/net/atm/lec.c index a7d172105c99..2e3d942e77f1 100644 --- a/net/atm/lec.c +++ b/net/atm/lec.c @@ -231,9 +231,11 @@ static netdev_tx_t lec_start_xmit(struct sk_buff *skb, if (skb_headroom(skb) < 2) { pr_debug("reallocating skb\n"); skb2 = skb_realloc_headroom(skb, LEC_HEADER_LEN); - kfree_skb(skb); - if (skb2 == NULL) + if (unlikely(!skb2)) { + kfree_skb(skb); return NETDEV_TX_OK; + } + consume_skb(skb); skb = skb2; } skb_push(skb, 2); @@ -1602,7 +1604,7 @@ static void lec_arp_expire_vcc(unsigned long data) { unsigned long flags; struct lec_arp_table *to_remove = (struct lec_arp_table *)data; - struct lec_priv *priv = (struct lec_priv *)to_remove->priv; + struct lec_priv *priv = to_remove->priv; del_timer(&to_remove->timer); diff --git a/net/atm/pppoatm.c b/net/atm/pppoatm.c index ce1e59fdae7b..226dca989448 100644 --- a/net/atm/pppoatm.c +++ b/net/atm/pppoatm.c @@ -283,7 +283,7 @@ static int pppoatm_send(struct ppp_channel *chan, struct sk_buff *skb) kfree_skb(n); goto nospace; } - kfree_skb(skb); + consume_skb(skb); skb = n; if (skb == NULL) return DROP_PACKET; diff --git a/net/ax25/ax25_out.c b/net/ax25/ax25_out.c index be8a25e0db65..be2acab9be9d 100644 --- a/net/ax25/ax25_out.c +++ b/net/ax25/ax25_out.c @@ -350,7 +350,7 @@ void ax25_transmit_buffer(ax25_cb *ax25, struct sk_buff *skb, int type) if (skb->sk != NULL) skb_set_owner_w(skbn, skb->sk); - kfree_skb(skb); + consume_skb(skb); skb = skbn; } diff --git a/net/ax25/ax25_route.c b/net/ax25/ax25_route.c index a65588040b9e..d39097737e38 100644 --- a/net/ax25/ax25_route.c +++ b/net/ax25/ax25_route.c @@ -474,7 +474,7 @@ struct sk_buff *ax25_rt_build_path(struct sk_buff *skb, ax25_address *src, if (skb->sk != NULL) skb_set_owner_w(skbn, skb->sk); - kfree_skb(skb); + consume_skb(skb); skb = skbn; } diff --git a/net/bridge/br_netfilter.c b/net/bridge/br_netfilter.c index e41456bd3cc6..20fa719889ee 100644 --- a/net/bridge/br_netfilter.c +++ b/net/bridge/br_netfilter.c @@ -764,9 +764,9 @@ static unsigned int br_nf_forward_ip(unsigned int hook, struct sk_buff *skb, return NF_DROP; if (IS_IP(skb) || IS_VLAN_IP(skb) || IS_PPPOE_IP(skb)) - pf = PF_INET; + pf = NFPROTO_IPV4; else if (IS_IPV6(skb) || IS_VLAN_IPV6(skb) || IS_PPPOE_IPV6(skb)) - pf = PF_INET6; + pf = NFPROTO_IPV6; else return NF_ACCEPT; @@ -778,13 +778,13 @@ static unsigned int br_nf_forward_ip(unsigned int hook, struct sk_buff *skb, nf_bridge->mask |= BRNF_PKT_TYPE; } - if (pf == PF_INET && br_parse_ip_options(skb)) + if (pf == NFPROTO_IPV4 && br_parse_ip_options(skb)) return NF_DROP; /* The physdev module checks on this */ nf_bridge->mask |= BRNF_BRIDGED; nf_bridge->physoutdev = skb->dev; - if (pf == PF_INET) + if (pf == NFPROTO_IPV4) skb->protocol = htons(ETH_P_IP); else skb->protocol = htons(ETH_P_IPV6); @@ -871,9 +871,9 @@ static unsigned int br_nf_post_routing(unsigned int hook, struct sk_buff *skb, return NF_DROP; if (IS_IP(skb) || IS_VLAN_IP(skb) || IS_PPPOE_IP(skb)) - pf = PF_INET; + pf = NFPROTO_IPV4; else if (IS_IPV6(skb) || IS_VLAN_IPV6(skb) || IS_PPPOE_IPV6(skb)) - pf = PF_INET6; + pf = NFPROTO_IPV6; else return NF_ACCEPT; @@ -886,7 +886,7 @@ static unsigned int br_nf_post_routing(unsigned int hook, struct sk_buff *skb, nf_bridge_pull_encap_header(skb); nf_bridge_save_header(skb); - if (pf == PF_INET) + if (pf == NFPROTO_IPV4) skb->protocol = htons(ETH_P_IP); else skb->protocol = htons(ETH_P_IPV6); @@ -919,49 +919,49 @@ static struct nf_hook_ops br_nf_ops[] __read_mostly = { { .hook = br_nf_pre_routing, .owner = THIS_MODULE, - .pf = PF_BRIDGE, + .pf = NFPROTO_BRIDGE, .hooknum = NF_BR_PRE_ROUTING, .priority = NF_BR_PRI_BRNF, }, { .hook = br_nf_local_in, .owner = THIS_MODULE, - .pf = PF_BRIDGE, + .pf = NFPROTO_BRIDGE, .hooknum = NF_BR_LOCAL_IN, .priority = NF_BR_PRI_BRNF, }, { .hook = br_nf_forward_ip, .owner = THIS_MODULE, - .pf = PF_BRIDGE, + .pf = NFPROTO_BRIDGE, .hooknum = NF_BR_FORWARD, .priority = NF_BR_PRI_BRNF - 1, }, { .hook = br_nf_forward_arp, .owner = THIS_MODULE, - .pf = PF_BRIDGE, + .pf = NFPROTO_BRIDGE, .hooknum = NF_BR_FORWARD, .priority = NF_BR_PRI_BRNF, }, { .hook = br_nf_post_routing, .owner = THIS_MODULE, - .pf = PF_BRIDGE, + .pf = NFPROTO_BRIDGE, .hooknum = NF_BR_POST_ROUTING, .priority = NF_BR_PRI_LAST, }, { .hook = ip_sabotage_in, .owner = THIS_MODULE, - .pf = PF_INET, + .pf = NFPROTO_IPV4, .hooknum = NF_INET_PRE_ROUTING, .priority = NF_IP_PRI_FIRST, }, { .hook = ip_sabotage_in, .owner = THIS_MODULE, - .pf = PF_INET6, + .pf = NFPROTO_IPV6, .hooknum = NF_INET_PRE_ROUTING, .priority = NF_IP6_PRI_FIRST, }, diff --git a/net/can/af_can.c b/net/can/af_can.c index 0ce2ad0696da..6efcd37b4bd0 100644 --- a/net/can/af_can.c +++ b/net/can/af_can.c @@ -334,8 +334,8 @@ static struct dev_rcv_lists *find_dev_rcv_lists(struct net_device *dev) * relevant bits for the filter. * * The filter can be inverted (CAN_INV_FILTER bit set in can_id) or it can - * filter for error frames (CAN_ERR_FLAG bit set in mask). For error frames - * there is a special filterlist and a special rx path filter handling. + * filter for error messages (CAN_ERR_FLAG bit set in mask). For error msg + * frames there is a special filterlist and a special rx path filter handling. * * Return: * Pointer to optimal filterlist for the given can_id/mask pair. @@ -347,7 +347,7 @@ static struct hlist_head *find_rcv_list(canid_t *can_id, canid_t *mask, { canid_t inv = *can_id & CAN_INV_FILTER; /* save flag before masking */ - /* filter for error frames in extra filterlist */ + /* filter for error message frames in extra filterlist */ if (*mask & CAN_ERR_FLAG) { /* clear CAN_ERR_FLAG in filter entry */ *mask &= CAN_ERR_MASK; @@ -408,7 +408,7 @@ static struct hlist_head *find_rcv_list(canid_t *can_id, canid_t *mask, * <received_can_id> & mask == can_id & mask * * The filter can be inverted (CAN_INV_FILTER bit set in can_id) or it can - * filter for error frames (CAN_ERR_FLAG bit set in mask). + * filter for error message frames (CAN_ERR_FLAG bit set in mask). * * The provided pointer to the sk_buff is guaranteed to be valid as long as * the callback function is running. The callback function must *not* free @@ -578,7 +578,7 @@ static int can_rcv_filter(struct dev_rcv_lists *d, struct sk_buff *skb) return 0; if (can_id & CAN_ERR_FLAG) { - /* check for error frame entries only */ + /* check for error message frame entries only */ hlist_for_each_entry_rcu(r, n, &d->rx[RX_ERR], list) { if (can_id & r->mask) { deliver(skb, r); diff --git a/net/core/dev.c b/net/core/dev.c index cd0981977f5c..c6e29ea65bd9 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -2476,6 +2476,23 @@ static DEFINE_PER_CPU(int, xmit_recursion); #define RECURSION_LIMIT 10 /** + * dev_loopback_xmit - loop back @skb + * @skb: buffer to transmit + */ +int dev_loopback_xmit(struct sk_buff *skb) +{ + skb_reset_mac_header(skb); + __skb_pull(skb, skb_network_offset(skb)); + skb->pkt_type = PACKET_LOOPBACK; + skb->ip_summed = CHECKSUM_UNNECESSARY; + WARN_ON(!skb_dst(skb)); + skb_dst_force(skb); + netif_rx_ni(skb); + return 0; +} +EXPORT_SYMBOL(dev_loopback_xmit); + +/** * dev_queue_xmit - transmit a buffer * @skb: buffer to transmit * diff --git a/net/core/ethtool.c b/net/core/ethtool.c index 9c2afb480270..cbf033dcaf1f 100644 --- a/net/core/ethtool.c +++ b/net/core/ethtool.c @@ -729,6 +729,40 @@ static int ethtool_set_wol(struct net_device *dev, char __user *useraddr) return dev->ethtool_ops->set_wol(dev, &wol); } +static int ethtool_get_eee(struct net_device *dev, char __user *useraddr) +{ + struct ethtool_eee edata; + int rc; + + if (!dev->ethtool_ops->get_eee) + return -EOPNOTSUPP; + + memset(&edata, 0, sizeof(struct ethtool_eee)); + edata.cmd = ETHTOOL_GEEE; + rc = dev->ethtool_ops->get_eee(dev, &edata); + + if (rc) + return rc; + + if (copy_to_user(useraddr, &edata, sizeof(edata))) + return -EFAULT; + + return 0; +} + +static int ethtool_set_eee(struct net_device *dev, char __user *useraddr) +{ + struct ethtool_eee edata; + + if (!dev->ethtool_ops->set_eee) + return -EOPNOTSUPP; + + if (copy_from_user(&edata, useraddr, sizeof(edata))) + return -EFAULT; + + return dev->ethtool_ops->set_eee(dev, &edata); +} + static int ethtool_nway_reset(struct net_device *dev) { if (!dev->ethtool_ops->nway_reset) @@ -1409,6 +1443,7 @@ int dev_ethtool(struct net *net, struct ifreq *ifr) case ETHTOOL_GSET: case ETHTOOL_GDRVINFO: case ETHTOOL_GMSGLVL: + case ETHTOOL_GLINK: case ETHTOOL_GCOALESCE: case ETHTOOL_GRINGPARAM: case ETHTOOL_GPAUSEPARAM: @@ -1417,6 +1452,7 @@ int dev_ethtool(struct net *net, struct ifreq *ifr) case ETHTOOL_GSG: case ETHTOOL_GSSET_INFO: case ETHTOOL_GSTRINGS: + case ETHTOOL_GSTATS: case ETHTOOL_GTSO: case ETHTOOL_GPERMADDR: case ETHTOOL_GUFO: @@ -1429,8 +1465,11 @@ int dev_ethtool(struct net *net, struct ifreq *ifr) case ETHTOOL_GRXCLSRLCNT: case ETHTOOL_GRXCLSRULE: case ETHTOOL_GRXCLSRLALL: + case ETHTOOL_GRXFHINDIR: case ETHTOOL_GFEATURES: + case ETHTOOL_GCHANNELS: case ETHTOOL_GET_TS_INFO: + case ETHTOOL_GEEE: break; default: if (!capable(CAP_NET_ADMIN)) @@ -1471,6 +1510,12 @@ int dev_ethtool(struct net *net, struct ifreq *ifr) rc = ethtool_set_value_void(dev, useraddr, dev->ethtool_ops->set_msglevel); break; + case ETHTOOL_GEEE: + rc = ethtool_get_eee(dev, useraddr); + break; + case ETHTOOL_SEEE: + rc = ethtool_set_eee(dev, useraddr); + break; case ETHTOOL_NWAY_RST: rc = ethtool_nway_reset(dev); break; diff --git a/net/core/net-sysfs.c b/net/core/net-sysfs.c index fdf9e61d0651..72607174ea5a 100644 --- a/net/core/net-sysfs.c +++ b/net/core/net-sysfs.c @@ -417,72 +417,6 @@ static struct attribute_group netstat_group = { .name = "statistics", .attrs = netstat_attrs, }; - -#ifdef CONFIG_WIRELESS_EXT_SYSFS -/* helper function that does all the locking etc for wireless stats */ -static ssize_t wireless_show(struct device *d, char *buf, - ssize_t (*format)(const struct iw_statistics *, - char *)) -{ - struct net_device *dev = to_net_dev(d); - const struct iw_statistics *iw; - ssize_t ret = -EINVAL; - - if (!rtnl_trylock()) - return restart_syscall(); - if (dev_isalive(dev)) { - iw = get_wireless_stats(dev); - if (iw) - ret = (*format)(iw, buf); - } - rtnl_unlock(); - - return ret; -} - -/* show function template for wireless fields */ -#define WIRELESS_SHOW(name, field, format_string) \ -static ssize_t format_iw_##name(const struct iw_statistics *iw, char *buf) \ -{ \ - return sprintf(buf, format_string, iw->field); \ -} \ -static ssize_t show_iw_##name(struct device *d, \ - struct device_attribute *attr, char *buf) \ -{ \ - return wireless_show(d, buf, format_iw_##name); \ -} \ -static DEVICE_ATTR(name, S_IRUGO, show_iw_##name, NULL) - -WIRELESS_SHOW(status, status, fmt_hex); -WIRELESS_SHOW(link, qual.qual, fmt_dec); -WIRELESS_SHOW(level, qual.level, fmt_dec); -WIRELESS_SHOW(noise, qual.noise, fmt_dec); -WIRELESS_SHOW(nwid, discard.nwid, fmt_dec); -WIRELESS_SHOW(crypt, discard.code, fmt_dec); -WIRELESS_SHOW(fragment, discard.fragment, fmt_dec); -WIRELESS_SHOW(misc, discard.misc, fmt_dec); -WIRELESS_SHOW(retries, discard.retries, fmt_dec); -WIRELESS_SHOW(beacon, miss.beacon, fmt_dec); - -static struct attribute *wireless_attrs[] = { - &dev_attr_status.attr, - &dev_attr_link.attr, - &dev_attr_level.attr, - &dev_attr_noise.attr, - &dev_attr_nwid.attr, - &dev_attr_crypt.attr, - &dev_attr_fragment.attr, - &dev_attr_retries.attr, - &dev_attr_misc.attr, - &dev_attr_beacon.attr, - NULL -}; - -static struct attribute_group wireless_group = { - .name = "wireless", - .attrs = wireless_attrs, -}; -#endif #endif /* CONFIG_SYSFS */ #ifdef CONFIG_RPS @@ -1463,14 +1397,6 @@ int netdev_register_kobject(struct net_device *net) groups++; *groups++ = &netstat_group; -#ifdef CONFIG_WIRELESS_EXT_SYSFS - if (net->ieee80211_ptr) - *groups++ = &wireless_group; -#ifdef CONFIG_WIRELESS_EXT - else if (net->wireless_handlers) - *groups++ = &wireless_group; -#endif -#endif #endif /* CONFIG_SYSFS */ error = device_add(dev); diff --git a/net/core/skbuff.c b/net/core/skbuff.c index d78671e9d545..5b21522ed0e1 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -160,8 +160,8 @@ static void skb_under_panic(struct sk_buff *skb, int sz, void *here) * @node: numa node to allocate memory on * * Allocate a new &sk_buff. The returned buffer has no headroom and a - * tail room of size bytes. The object has a reference count of one. - * The return is the buffer. On a failure the return is %NULL. + * tail room of at least size bytes. The object has a reference count + * of one. The return is the buffer. On a failure the return is %NULL. * * Buffers may only be allocated from interrupts using a @gfp_mask of * %GFP_ATOMIC. diff --git a/net/core/sock_diag.c b/net/core/sock_diag.c index 5fd146720f39..0d934ce1075f 100644 --- a/net/core/sock_diag.c +++ b/net/core/sock_diag.c @@ -46,6 +46,7 @@ int sock_diag_put_meminfo(struct sock *sk, struct sk_buff *skb, int attrtype) mem[SK_MEMINFO_FWD_ALLOC] = sk->sk_forward_alloc; mem[SK_MEMINFO_WMEM_QUEUED] = sk->sk_wmem_queued; mem[SK_MEMINFO_OPTMEM] = atomic_read(&sk->sk_omem_alloc); + mem[SK_MEMINFO_BACKLOG] = sk->sk_backlog.len; return 0; diff --git a/net/decnet/dn_neigh.c b/net/decnet/dn_neigh.c index ac90f658586c..8e9a35b17df4 100644 --- a/net/decnet/dn_neigh.c +++ b/net/decnet/dn_neigh.c @@ -240,7 +240,7 @@ static int dn_long_output(struct neighbour *neigh, struct sk_buff *skb) kfree_skb(skb); return -ENOBUFS; } - kfree_skb(skb); + consume_skb(skb); skb = skb2; net_info_ratelimited("dn_long_output: Increasing headroom\n"); } @@ -283,7 +283,7 @@ static int dn_short_output(struct neighbour *neigh, struct sk_buff *skb) kfree_skb(skb); return -ENOBUFS; } - kfree_skb(skb); + consume_skb(skb); skb = skb2; net_info_ratelimited("dn_short_output: Increasing headroom\n"); } @@ -322,7 +322,7 @@ static int dn_phase3_output(struct neighbour *neigh, struct sk_buff *skb) kfree_skb(skb); return -ENOBUFS; } - kfree_skb(skb); + consume_skb(skb); skb = skb2; net_info_ratelimited("dn_phase3_output: Increasing headroom\n"); } diff --git a/net/decnet/dn_nsp_out.c b/net/decnet/dn_nsp_out.c index 564a6ad13ce7..8a96047c7c94 100644 --- a/net/decnet/dn_nsp_out.c +++ b/net/decnet/dn_nsp_out.c @@ -322,7 +322,7 @@ static __le16 *dn_mk_ack_header(struct sock *sk, struct sk_buff *skb, unsigned c /* Set "cross subchannel" bit in ackcrs */ ackcrs |= 0x2000; - ptr = (__le16 *)dn_mk_common_header(scp, skb, msgflag, hlen); + ptr = dn_mk_common_header(scp, skb, msgflag, hlen); *ptr++ = cpu_to_le16(acknum); *ptr++ = cpu_to_le16(ackcrs); diff --git a/net/decnet/netfilter/dn_rtmsg.c b/net/decnet/netfilter/dn_rtmsg.c index 44b890936fc0..e6f886255cde 100644 --- a/net/decnet/netfilter/dn_rtmsg.c +++ b/net/decnet/netfilter/dn_rtmsg.c @@ -117,7 +117,7 @@ static inline void dnrmg_receive_user_skb(struct sk_buff *skb) static struct nf_hook_ops dnrmg_ops __read_mostly = { .hook = dnrmg_hook, - .pf = PF_DECnet, + .pf = NFPROTO_DECNET, .hooknum = NF_DN_ROUTE, .priority = NF_DN_PRI_DNRTMSG, }; diff --git a/net/ipv4/af_inet.c b/net/ipv4/af_inet.c index c8f7aee587d1..e4e8e00a2c91 100644 --- a/net/ipv4/af_inet.c +++ b/net/ipv4/af_inet.c @@ -553,7 +553,7 @@ int inet_dgram_connect(struct socket *sock, struct sockaddr *uaddr, if (!inet_sk(sk)->inet_num && inet_autobind(sk)) return -EAGAIN; - return sk->sk_prot->connect(sk, (struct sockaddr *)uaddr, addr_len); + return sk->sk_prot->connect(sk, uaddr, addr_len); } EXPORT_SYMBOL(inet_dgram_connect); diff --git a/net/ipv4/arp.c b/net/ipv4/arp.c index cda37be02f8d..2e560f0c757d 100644 --- a/net/ipv4/arp.c +++ b/net/ipv4/arp.c @@ -790,7 +790,8 @@ static int arp_process(struct sk_buff *skb) * Check for bad requests for 127.x.x.x and requests for multicast * addresses. If this is one such, delete it. */ - if (ipv4_is_loopback(tip) || ipv4_is_multicast(tip)) + if (ipv4_is_multicast(tip) || + (!IN_DEV_ROUTE_LOCALNET(in_dev) && ipv4_is_loopback(tip))) goto out; /* diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c index 10e15a144e95..44bf82e3aef7 100644 --- a/net/ipv4/devinet.c +++ b/net/ipv4/devinet.c @@ -1500,7 +1500,8 @@ static int devinet_conf_proc(ctl_table *ctl, int write, if (cnf == net->ipv4.devconf_dflt) devinet_copy_dflt_conf(net, i); - if (i == IPV4_DEVCONF_ACCEPT_LOCAL - 1) + if (i == IPV4_DEVCONF_ACCEPT_LOCAL - 1 || + i == IPV4_DEVCONF_ROUTE_LOCALNET - 1) if ((new_value == 0) && (old_value != 0)) rt_cache_flush(net, 0); } @@ -1617,6 +1618,8 @@ static struct devinet_sysctl_table { "force_igmp_version"), DEVINET_SYSCTL_FLUSHING_ENTRY(PROMOTE_SECONDARIES, "promote_secondaries"), + DEVINET_SYSCTL_FLUSHING_ENTRY(ROUTE_LOCALNET, + "route_localnet"), }, }; diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c index 30b88d7b4bd6..9b0f25930fbc 100644 --- a/net/ipv4/fib_trie.c +++ b/net/ipv4/fib_trie.c @@ -1007,9 +1007,9 @@ static void trie_rebalance(struct trie *t, struct tnode *tn) while (tn != NULL && (tp = node_parent((struct rt_trie_node *)tn)) != NULL) { cindex = tkey_extract_bits(key, tp->pos, tp->bits); wasfull = tnode_full(tp, tnode_get_child(tp, cindex)); - tn = (struct tnode *) resize(t, (struct tnode *)tn); + tn = (struct tnode *)resize(t, tn); - tnode_put_child_reorg((struct tnode *)tp, cindex, + tnode_put_child_reorg(tp, cindex, (struct rt_trie_node *)tn, wasfull); tp = node_parent((struct rt_trie_node *) tn); @@ -1024,7 +1024,7 @@ static void trie_rebalance(struct trie *t, struct tnode *tn) /* Handle last (top) tnode */ if (IS_TNODE(tn)) - tn = (struct tnode *)resize(t, (struct tnode *)tn); + tn = (struct tnode *)resize(t, tn); rcu_assign_pointer(t->trie, (struct rt_trie_node *)tn); tnode_free_flush(); @@ -1125,7 +1125,7 @@ static struct list_head *fib_insert_node(struct trie *t, u32 key, int plen) node_set_parent((struct rt_trie_node *)l, tp); cindex = tkey_extract_bits(key, tp->pos, tp->bits); - put_child(t, (struct tnode *)tp, cindex, (struct rt_trie_node *)l); + put_child(t, tp, cindex, (struct rt_trie_node *)l); } else { /* Case 3: n is a LEAF or a TNODE and the key doesn't match. */ /* @@ -1160,8 +1160,7 @@ static struct list_head *fib_insert_node(struct trie *t, u32 key, int plen) if (tp) { cindex = tkey_extract_bits(key, tp->pos, tp->bits); - put_child(t, (struct tnode *)tp, cindex, - (struct rt_trie_node *)tn); + put_child(t, tp, cindex, (struct rt_trie_node *)tn); } else { rcu_assign_pointer(t->trie, (struct rt_trie_node *)tn); tp = tn; @@ -1620,7 +1619,7 @@ static void trie_leaf_remove(struct trie *t, struct leaf *l) if (tp) { t_key cindex = tkey_extract_bits(l->key, tp->pos, tp->bits); - put_child(t, (struct tnode *)tp, cindex, NULL); + put_child(t, tp, cindex, NULL); trie_rebalance(t, tp); } else RCU_INIT_POINTER(t->trie, NULL); @@ -1844,6 +1843,8 @@ int fib_table_flush(struct fib_table *tb) if (ll && hlist_empty(&ll->list)) trie_leaf_remove(t, ll); + inetpeer_invalidate_tree(&tb->tb_peers); + pr_debug("trie_flush found=%d\n", found); return found; } @@ -1992,6 +1993,7 @@ struct fib_table *fib_trie_table(u32 id) tb->tb_id = id; tb->tb_default = -1; tb->tb_num_default = 0; + inet_peer_base_init(&tb->tb_peers); t = (struct trie *) tb->tb_data; memset(t, 0, sizeof(*t)); diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c index c75efbdc71cb..e1caa1abe5d1 100644 --- a/net/ipv4/icmp.c +++ b/net/ipv4/icmp.c @@ -253,9 +253,8 @@ static inline bool icmpv4_xrlim_allow(struct net *net, struct rtable *rt, /* Limit if icmp type is enabled in ratemask. */ if ((1 << type) & net->ipv4.sysctl_icmp_ratemask) { - if (!rt->peer) - rt_bind_peer(rt, fl4->daddr, 1); - rc = inet_peer_xrlim_allow(rt->peer, + struct inet_peer *peer = rt_get_peer_create(rt, fl4->daddr); + rc = inet_peer_xrlim_allow(peer, net->ipv4.sysctl_icmp_ratelimit); } out: @@ -674,9 +673,7 @@ static void icmp_unreach(struct sk_buff *skb) LIMIT_NETDEBUG(KERN_INFO pr_fmt("%pI4: fragmentation needed and DF set\n"), &iph->daddr); } else { - info = ip_rt_frag_needed(net, iph, - ntohs(icmph->un.frag.mtu), - skb->dev); + info = ntohs(icmph->un.frag.mtu); if (!info) goto out; } diff --git a/net/ipv4/inet_fragment.c b/net/ipv4/inet_fragment.c index 5ff2a51b6d0c..85190e69297b 100644 --- a/net/ipv4/inet_fragment.c +++ b/net/ipv4/inet_fragment.c @@ -243,12 +243,12 @@ static struct inet_frag_queue *inet_frag_alloc(struct netns_frags *nf, if (q == NULL) return NULL; + q->net = nf; f->constructor(q, arg); atomic_add(f->qsize, &nf->mem); setup_timer(&q->timer, f->frag_expire, (unsigned long)q); spin_lock_init(&q->lock); atomic_set(&q->refcnt, 1); - q->net = nf; return q; } diff --git a/net/ipv4/inetpeer.c b/net/ipv4/inetpeer.c index dfba343b2509..cac02ad1425d 100644 --- a/net/ipv4/inetpeer.c +++ b/net/ipv4/inetpeer.c @@ -82,23 +82,39 @@ static const struct inet_peer peer_fake_node = { .avl_height = 0 }; -struct inet_peer_base { - struct inet_peer __rcu *root; - seqlock_t lock; - int total; -}; +void inet_peer_base_init(struct inet_peer_base *bp) +{ + bp->root = peer_avl_empty_rcu; + seqlock_init(&bp->lock); + bp->flush_seq = ~0U; + bp->total = 0; +} +EXPORT_SYMBOL_GPL(inet_peer_base_init); -static struct inet_peer_base v4_peers = { - .root = peer_avl_empty_rcu, - .lock = __SEQLOCK_UNLOCKED(v4_peers.lock), - .total = 0, -}; +static atomic_t v4_seq = ATOMIC_INIT(0); +static atomic_t v6_seq = ATOMIC_INIT(0); -static struct inet_peer_base v6_peers = { - .root = peer_avl_empty_rcu, - .lock = __SEQLOCK_UNLOCKED(v6_peers.lock), - .total = 0, -}; +static atomic_t *inetpeer_seq_ptr(int family) +{ + return (family == AF_INET ? &v4_seq : &v6_seq); +} + +static inline void flush_check(struct inet_peer_base *base, int family) +{ + atomic_t *fp = inetpeer_seq_ptr(family); + + if (unlikely(base->flush_seq != atomic_read(fp))) { + inetpeer_invalidate_tree(base); + base->flush_seq = atomic_read(fp); + } +} + +void inetpeer_invalidate_family(int family) +{ + atomic_t *fp = inetpeer_seq_ptr(family); + + atomic_inc(fp); +} #define PEER_MAXDEPTH 40 /* sufficient for about 2^27 nodes */ @@ -401,11 +417,6 @@ static void unlink_from_pool(struct inet_peer *p, struct inet_peer_base *base, call_rcu(&p->rcu, inetpeer_free_rcu); } -static struct inet_peer_base *family_to_base(int family) -{ - return family == AF_INET ? &v4_peers : &v6_peers; -} - /* perform garbage collect on all items stacked during a lookup */ static int inet_peer_gc(struct inet_peer_base *base, struct inet_peer __rcu **stack[PEER_MAXDEPTH], @@ -443,14 +454,17 @@ static int inet_peer_gc(struct inet_peer_base *base, return cnt; } -struct inet_peer *inet_getpeer(const struct inetpeer_addr *daddr, int create) +struct inet_peer *inet_getpeer(struct inet_peer_base *base, + const struct inetpeer_addr *daddr, + int create) { struct inet_peer __rcu **stack[PEER_MAXDEPTH], ***stackptr; - struct inet_peer_base *base = family_to_base(daddr->family); struct inet_peer *p; unsigned int sequence; int invalidated, gccnt = 0; + flush_check(base, daddr->family); + /* Attempt a lockless lookup first. * Because of a concurrent writer, we might not find an existing entry. */ @@ -571,10 +585,9 @@ static void inetpeer_inval_rcu(struct rcu_head *head) schedule_delayed_work(&gc_work, gc_delay); } -void inetpeer_invalidate_tree(int family) +void inetpeer_invalidate_tree(struct inet_peer_base *base) { struct inet_peer *old, *new, *prev; - struct inet_peer_base *base = family_to_base(family); write_seqlock_bh(&base->lock); diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c index 9dbd3dd6022d..8d07c973409c 100644 --- a/net/ipv4/ip_fragment.c +++ b/net/ipv4/ip_fragment.c @@ -171,6 +171,10 @@ static void frag_kfree_skb(struct netns_frags *nf, struct sk_buff *skb) static void ip4_frag_init(struct inet_frag_queue *q, void *a) { struct ipq *qp = container_of(q, struct ipq, q); + struct netns_ipv4 *ipv4 = container_of(q->net, struct netns_ipv4, + frags); + struct net *net = container_of(ipv4, struct net, ipv4); + struct ip4_create_arg *arg = a; qp->protocol = arg->iph->protocol; @@ -180,7 +184,7 @@ static void ip4_frag_init(struct inet_frag_queue *q, void *a) qp->daddr = arg->iph->daddr; qp->user = arg->user; qp->peer = sysctl_ipfrag_max_dist ? - inet_getpeer_v4(arg->iph->saddr, 1) : NULL; + inet_getpeer_v4(net->ipv4.peers, arg->iph->saddr, 1) : NULL; } static __inline__ void ip4_frag_free(struct inet_frag_queue *q) diff --git a/net/ipv4/ip_output.c b/net/ipv4/ip_output.c index 451f97c42eb4..0f3185a662c3 100644 --- a/net/ipv4/ip_output.c +++ b/net/ipv4/ip_output.c @@ -113,19 +113,6 @@ int ip_local_out(struct sk_buff *skb) } EXPORT_SYMBOL_GPL(ip_local_out); -/* dev_loopback_xmit for use with netfilter. */ -static int ip_dev_loopback_xmit(struct sk_buff *newskb) -{ - skb_reset_mac_header(newskb); - __skb_pull(newskb, skb_network_offset(newskb)); - newskb->pkt_type = PACKET_LOOPBACK; - newskb->ip_summed = CHECKSUM_UNNECESSARY; - WARN_ON(!skb_dst(newskb)); - skb_dst_force(newskb); - netif_rx_ni(newskb); - return 0; -} - static inline int ip_select_ttl(struct inet_sock *inet, struct dst_entry *dst) { int ttl = inet->uc_ttl; @@ -200,7 +187,7 @@ static inline int ip_finish_output2(struct sk_buff *skb) } if (skb->sk) skb_set_owner_w(skb2, skb->sk); - kfree_skb(skb); + consume_skb(skb); skb = skb2; } @@ -281,7 +268,7 @@ int ip_mc_output(struct sk_buff *skb) if (newskb) NF_HOOK(NFPROTO_IPV4, NF_INET_POST_ROUTING, newskb, NULL, newskb->dev, - ip_dev_loopback_xmit); + dev_loopback_xmit); } /* Multicasts with ttl 0 must not go beyond the host */ @@ -296,7 +283,7 @@ int ip_mc_output(struct sk_buff *skb) struct sk_buff *newskb = skb_clone(skb, GFP_ATOMIC); if (newskb) NF_HOOK(NFPROTO_IPV4, NF_INET_POST_ROUTING, newskb, - NULL, newskb->dev, ip_dev_loopback_xmit); + NULL, newskb->dev, dev_loopback_xmit); } return NF_HOOK_COND(NFPROTO_IPV4, NF_INET_POST_ROUTING, skb, NULL, @@ -709,7 +696,7 @@ slow_path: IP_INC_STATS(dev_net(dev), IPSTATS_MIB_FRAGCREATES); } - kfree_skb(skb); + consume_skb(skb); IP_INC_STATS(dev_net(dev), IPSTATS_MIB_FRAGOKS); return err; diff --git a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c index 91747d4ebc26..d79b961a8009 100644 --- a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c +++ b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c @@ -207,35 +207,30 @@ static int log_invalid_proto_max = 255; static ctl_table ip_ct_sysctl_table[] = { { .procname = "ip_conntrack_max", - .data = &nf_conntrack_max, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec, }, { .procname = "ip_conntrack_count", - .data = &init_net.ct.count, .maxlen = sizeof(int), .mode = 0444, .proc_handler = proc_dointvec, }, { .procname = "ip_conntrack_buckets", - .data = &init_net.ct.htable_size, .maxlen = sizeof(unsigned int), .mode = 0444, .proc_handler = proc_dointvec, }, { .procname = "ip_conntrack_checksum", - .data = &init_net.ct.sysctl_checksum, .maxlen = sizeof(int), .mode = 0644, .proc_handler = proc_dointvec, }, { .procname = "ip_conntrack_log_invalid", - .data = &init_net.ct.sysctl_log_invalid, .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_minmax, @@ -351,6 +346,25 @@ static struct nf_sockopt_ops so_getorigdst = { .owner = THIS_MODULE, }; +static int ipv4_init_net(struct net *net) +{ +#if defined(CONFIG_SYSCTL) && defined(CONFIG_NF_CONNTRACK_PROC_COMPAT) + struct nf_ip_net *in = &net->ct.nf_ct_proto; + in->ctl_table = kmemdup(ip_ct_sysctl_table, + sizeof(ip_ct_sysctl_table), + GFP_KERNEL); + if (!in->ctl_table) + return -ENOMEM; + + in->ctl_table[0].data = &nf_conntrack_max; + in->ctl_table[1].data = &net->ct.count; + in->ctl_table[2].data = &net->ct.htable_size; + in->ctl_table[3].data = &net->ct.sysctl_checksum; + in->ctl_table[4].data = &net->ct.sysctl_log_invalid; +#endif + return 0; +} + struct nf_conntrack_l3proto nf_conntrack_l3proto_ipv4 __read_mostly = { .l3proto = PF_INET, .name = "ipv4", @@ -366,8 +380,8 @@ struct nf_conntrack_l3proto nf_conntrack_l3proto_ipv4 __read_mostly = { #endif #if defined(CONFIG_SYSCTL) && defined(CONFIG_NF_CONNTRACK_PROC_COMPAT) .ctl_table_path = "net/ipv4/netfilter", - .ctl_table = ip_ct_sysctl_table, #endif + .init_net = ipv4_init_net, .me = THIS_MODULE, }; @@ -378,6 +392,65 @@ MODULE_ALIAS("nf_conntrack-" __stringify(AF_INET)); MODULE_ALIAS("ip_conntrack"); MODULE_LICENSE("GPL"); +static int ipv4_net_init(struct net *net) +{ + int ret = 0; + + ret = nf_conntrack_l4proto_register(net, + &nf_conntrack_l4proto_tcp4); + if (ret < 0) { + pr_err("nf_conntrack_l4proto_tcp4 :protocol register failed\n"); + goto out_tcp; + } + ret = nf_conntrack_l4proto_register(net, + &nf_conntrack_l4proto_udp4); + if (ret < 0) { + pr_err("nf_conntrack_l4proto_udp4 :protocol register failed\n"); + goto out_udp; + } + ret = nf_conntrack_l4proto_register(net, + &nf_conntrack_l4proto_icmp); + if (ret < 0) { + pr_err("nf_conntrack_l4proto_icmp4 :protocol register failed\n"); + goto out_icmp; + } + ret = nf_conntrack_l3proto_register(net, + &nf_conntrack_l3proto_ipv4); + if (ret < 0) { + pr_err("nf_conntrack_l3proto_ipv4 :protocol register failed\n"); + goto out_ipv4; + } + return 0; +out_ipv4: + nf_conntrack_l4proto_unregister(net, + &nf_conntrack_l4proto_icmp); +out_icmp: + nf_conntrack_l4proto_unregister(net, + &nf_conntrack_l4proto_udp4); +out_udp: + nf_conntrack_l4proto_unregister(net, + &nf_conntrack_l4proto_tcp4); +out_tcp: + return ret; +} + +static void ipv4_net_exit(struct net *net) +{ + nf_conntrack_l3proto_unregister(net, + &nf_conntrack_l3proto_ipv4); + nf_conntrack_l4proto_unregister(net, + &nf_conntrack_l4proto_icmp); + nf_conntrack_l4proto_unregister(net, + &nf_conntrack_l4proto_udp4); + nf_conntrack_l4proto_unregister(net, + &nf_conntrack_l4proto_tcp4); +} + +static struct pernet_operations ipv4_net_ops = { + .init = ipv4_net_init, + .exit = ipv4_net_exit, +}; + static int __init nf_conntrack_l3proto_ipv4_init(void) { int ret = 0; @@ -391,35 +464,17 @@ static int __init nf_conntrack_l3proto_ipv4_init(void) return ret; } - ret = nf_conntrack_l4proto_register(&nf_conntrack_l4proto_tcp4); + ret = register_pernet_subsys(&ipv4_net_ops); if (ret < 0) { - pr_err("nf_conntrack_ipv4: can't register tcp.\n"); + pr_err("nf_conntrack_ipv4: can't register pernet ops\n"); goto cleanup_sockopt; } - ret = nf_conntrack_l4proto_register(&nf_conntrack_l4proto_udp4); - if (ret < 0) { - pr_err("nf_conntrack_ipv4: can't register udp.\n"); - goto cleanup_tcp; - } - - ret = nf_conntrack_l4proto_register(&nf_conntrack_l4proto_icmp); - if (ret < 0) { - pr_err("nf_conntrack_ipv4: can't register icmp.\n"); - goto cleanup_udp; - } - - ret = nf_conntrack_l3proto_register(&nf_conntrack_l3proto_ipv4); - if (ret < 0) { - pr_err("nf_conntrack_ipv4: can't register ipv4\n"); - goto cleanup_icmp; - } - ret = nf_register_hooks(ipv4_conntrack_ops, ARRAY_SIZE(ipv4_conntrack_ops)); if (ret < 0) { pr_err("nf_conntrack_ipv4: can't register hooks.\n"); - goto cleanup_ipv4; + goto cleanup_pernet; } #if defined(CONFIG_PROC_FS) && defined(CONFIG_NF_CONNTRACK_PROC_COMPAT) ret = nf_conntrack_ipv4_compat_init(); @@ -431,14 +486,8 @@ static int __init nf_conntrack_l3proto_ipv4_init(void) cleanup_hooks: nf_unregister_hooks(ipv4_conntrack_ops, ARRAY_SIZE(ipv4_conntrack_ops)); #endif - cleanup_ipv4: - nf_conntrack_l3proto_unregister(&nf_conntrack_l3proto_ipv4); - cleanup_icmp: - nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_icmp); - cleanup_udp: - nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_udp4); - cleanup_tcp: - nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_tcp4); + cleanup_pernet: + unregister_pernet_subsys(&ipv4_net_ops); cleanup_sockopt: nf_unregister_sockopt(&so_getorigdst); return ret; @@ -451,10 +500,7 @@ static void __exit nf_conntrack_l3proto_ipv4_fini(void) nf_conntrack_ipv4_compat_fini(); #endif nf_unregister_hooks(ipv4_conntrack_ops, ARRAY_SIZE(ipv4_conntrack_ops)); - nf_conntrack_l3proto_unregister(&nf_conntrack_l3proto_ipv4); - nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_icmp); - nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_udp4); - nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_tcp4); + unregister_pernet_subsys(&ipv4_net_ops); nf_unregister_sockopt(&so_getorigdst); } diff --git a/net/ipv4/netfilter/nf_conntrack_proto_icmp.c b/net/ipv4/netfilter/nf_conntrack_proto_icmp.c index 0847e373d33c..041923cb67ad 100644 --- a/net/ipv4/netfilter/nf_conntrack_proto_icmp.c +++ b/net/ipv4/netfilter/nf_conntrack_proto_icmp.c @@ -23,6 +23,11 @@ static unsigned int nf_ct_icmp_timeout __read_mostly = 30*HZ; +static inline struct nf_icmp_net *icmp_pernet(struct net *net) +{ + return &net->ct.nf_ct_proto.icmp; +} + static bool icmp_pkt_to_tuple(const struct sk_buff *skb, unsigned int dataoff, struct nf_conntrack_tuple *tuple) { @@ -77,7 +82,7 @@ static int icmp_print_tuple(struct seq_file *s, static unsigned int *icmp_get_timeouts(struct net *net) { - return &nf_ct_icmp_timeout; + return &icmp_pernet(net)->timeout; } /* Returns verdict for packet, or -1 for invalid. */ @@ -274,16 +279,18 @@ static int icmp_nlattr_tuple_size(void) #include <linux/netfilter/nfnetlink.h> #include <linux/netfilter/nfnetlink_cttimeout.h> -static int icmp_timeout_nlattr_to_obj(struct nlattr *tb[], void *data) +static int icmp_timeout_nlattr_to_obj(struct nlattr *tb[], + struct net *net, void *data) { unsigned int *timeout = data; + struct nf_icmp_net *in = icmp_pernet(net); if (tb[CTA_TIMEOUT_ICMP_TIMEOUT]) { *timeout = ntohl(nla_get_be32(tb[CTA_TIMEOUT_ICMP_TIMEOUT])) * HZ; } else { /* Set default ICMP timeout. */ - *timeout = nf_ct_icmp_timeout; + *timeout = in->timeout; } return 0; } @@ -308,11 +315,9 @@ icmp_timeout_nla_policy[CTA_TIMEOUT_ICMP_MAX+1] = { #endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ #ifdef CONFIG_SYSCTL -static struct ctl_table_header *icmp_sysctl_header; static struct ctl_table icmp_sysctl_table[] = { { .procname = "nf_conntrack_icmp_timeout", - .data = &nf_ct_icmp_timeout, .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, @@ -323,7 +328,6 @@ static struct ctl_table icmp_sysctl_table[] = { static struct ctl_table icmp_compat_sysctl_table[] = { { .procname = "ip_conntrack_icmp_timeout", - .data = &nf_ct_icmp_timeout, .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, @@ -333,6 +337,34 @@ static struct ctl_table icmp_compat_sysctl_table[] = { #endif /* CONFIG_NF_CONNTRACK_PROC_COMPAT */ #endif /* CONFIG_SYSCTL */ +static int icmp_init_net(struct net *net) +{ + struct nf_icmp_net *in = icmp_pernet(net); + struct nf_proto_net *pn = (struct nf_proto_net *)in; + in->timeout = nf_ct_icmp_timeout; + +#ifdef CONFIG_SYSCTL + pn->ctl_table = kmemdup(icmp_sysctl_table, + sizeof(icmp_sysctl_table), + GFP_KERNEL); + if (!pn->ctl_table) + return -ENOMEM; + pn->ctl_table[0].data = &in->timeout; +#ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT + pn->ctl_compat_table = kmemdup(icmp_compat_sysctl_table, + sizeof(icmp_compat_sysctl_table), + GFP_KERNEL); + if (!pn->ctl_compat_table) { + kfree(pn->ctl_table); + pn->ctl_table = NULL; + return -ENOMEM; + } + pn->ctl_compat_table[0].data = &in->timeout; +#endif +#endif + return 0; +} + struct nf_conntrack_l4proto nf_conntrack_l4proto_icmp __read_mostly = { .l3proto = PF_INET, @@ -362,11 +394,5 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_icmp __read_mostly = .nla_policy = icmp_timeout_nla_policy, }, #endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ -#ifdef CONFIG_SYSCTL - .ctl_table_header = &icmp_sysctl_header, - .ctl_table = icmp_sysctl_table, -#ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT - .ctl_compat_table = icmp_compat_sysctl_table, -#endif -#endif + .init_net = icmp_init_net, }; diff --git a/net/ipv4/netfilter/nf_defrag_ipv4.c b/net/ipv4/netfilter/nf_defrag_ipv4.c index 9bb1b8a37a22..742815518b0f 100644 --- a/net/ipv4/netfilter/nf_defrag_ipv4.c +++ b/net/ipv4/netfilter/nf_defrag_ipv4.c @@ -94,14 +94,14 @@ static struct nf_hook_ops ipv4_defrag_ops[] = { { .hook = ipv4_conntrack_defrag, .owner = THIS_MODULE, - .pf = PF_INET, + .pf = NFPROTO_IPV4, .hooknum = NF_INET_PRE_ROUTING, .priority = NF_IP_PRI_CONNTRACK_DEFRAG, }, { .hook = ipv4_conntrack_defrag, .owner = THIS_MODULE, - .pf = PF_INET, + .pf = NFPROTO_IPV4, .hooknum = NF_INET_LOCAL_OUT, .priority = NF_IP_PRI_CONNTRACK_DEFRAG, }, diff --git a/net/ipv4/netfilter/nf_nat_snmp_basic.c b/net/ipv4/netfilter/nf_nat_snmp_basic.c index 746edec8b86e..bac712293fd6 100644 --- a/net/ipv4/netfilter/nf_nat_snmp_basic.c +++ b/net/ipv4/netfilter/nf_nat_snmp_basic.c @@ -405,7 +405,7 @@ static unsigned char asn1_octets_decode(struct asn1_ctx *ctx, ptr = *octets; while (ctx->pointer < eoc) { - if (!asn1_octet_decode(ctx, (unsigned char *)ptr++)) { + if (!asn1_octet_decode(ctx, ptr++)) { kfree(*octets); *octets = NULL; return 0; @@ -759,7 +759,7 @@ static unsigned char snmp_object_decode(struct asn1_ctx *ctx, } break; case SNMP_OBJECTID: - if (!asn1_oid_decode(ctx, end, (unsigned long **)&lp, &len)) { + if (!asn1_oid_decode(ctx, end, &lp, &len)) { kfree(id); return 0; } diff --git a/net/ipv4/route.c b/net/ipv4/route.c index 98b30d08efe9..655506af47ca 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -162,10 +162,7 @@ static u32 *ipv4_cow_metrics(struct dst_entry *dst, unsigned long old) struct inet_peer *peer; u32 *p = NULL; - if (!rt->peer) - rt_bind_peer(rt, rt->rt_dst, 1); - - peer = rt->peer; + peer = rt_get_peer_create(rt, rt->rt_dst); if (peer) { u32 *old_p = __DST_METRICS_PTR(old); unsigned long prev, new; @@ -680,7 +677,7 @@ static inline int rt_fast_clean(struct rtable *rth) static inline int rt_valuable(struct rtable *rth) { return (rth->rt_flags & (RTCF_REDIRECTED | RTCF_NOTIFY)) || - (rth->peer && rth->peer->pmtu_expires); + (rt_has_peer(rth) && rt_peer_ptr(rth)->pmtu_expires); } static int rt_may_expire(struct rtable *rth, unsigned long tmo1, unsigned long tmo2) @@ -938,7 +935,7 @@ static void rt_cache_invalidate(struct net *net) get_random_bytes(&shuffle, sizeof(shuffle)); atomic_add(shuffle + 1U, &net->ipv4.rt_genid); - inetpeer_invalidate_tree(AF_INET); + inetpeer_invalidate_family(AF_INET); } /* @@ -1328,14 +1325,20 @@ static u32 rt_peer_genid(void) void rt_bind_peer(struct rtable *rt, __be32 daddr, int create) { + struct inet_peer_base *base; struct inet_peer *peer; - peer = inet_getpeer_v4(daddr, create); + base = inetpeer_base_ptr(rt->_peer); + if (!base) + return; - if (peer && cmpxchg(&rt->peer, NULL, peer) != NULL) - inet_putpeer(peer); - else - rt->rt_peer_genid = rt_peer_genid(); + peer = inet_getpeer_v4(base, daddr, create); + if (peer) { + if (!rt_set_peer(rt, peer)) + inet_putpeer(peer); + else + rt->rt_peer_genid = rt_peer_genid(); + } } /* @@ -1363,14 +1366,13 @@ void __ip_select_ident(struct iphdr *iph, struct dst_entry *dst, int more) struct rtable *rt = (struct rtable *) dst; if (rt && !(rt->dst.flags & DST_NOPEER)) { - if (rt->peer == NULL) - rt_bind_peer(rt, rt->rt_dst, 1); + struct inet_peer *peer = rt_get_peer_create(rt, rt->rt_dst); /* If peer is attached to destination, it is never detached, so that we need not to grab a lock to dereference it. */ - if (rt->peer) { - iph->id = htons(inet_getid(rt->peer, more)); + if (peer) { + iph->id = htons(inet_getid(peer, more)); return; } } else if (!rt) @@ -1480,10 +1482,7 @@ void ip_rt_redirect(__be32 old_gw, __be32 daddr, __be32 new_gw, rt->rt_gateway != old_gw) continue; - if (!rt->peer) - rt_bind_peer(rt, rt->rt_dst, 1); - - peer = rt->peer; + peer = rt_get_peer_create(rt, rt->rt_dst); if (peer) { if (peer->redirect_learned.a4 != new_gw) { peer->redirect_learned.a4 = new_gw; @@ -1539,8 +1538,10 @@ static struct dst_entry *ipv4_negative_advice(struct dst_entry *dst) rt_genid(dev_net(dst->dev))); rt_del(hash, rt); ret = NULL; - } else if (rt->peer && peer_pmtu_expired(rt->peer)) { - dst_metric_set(dst, RTAX_MTU, rt->peer->pmtu_orig); + } else if (rt_has_peer(rt)) { + struct inet_peer *peer = rt_peer_ptr(rt); + if (peer_pmtu_expired(peer)) + dst_metric_set(dst, RTAX_MTU, peer->pmtu_orig); } } return ret; @@ -1578,9 +1579,7 @@ void ip_rt_send_redirect(struct sk_buff *skb) log_martians = IN_DEV_LOG_MARTIANS(in_dev); rcu_read_unlock(); - if (!rt->peer) - rt_bind_peer(rt, rt->rt_dst, 1); - peer = rt->peer; + peer = rt_get_peer_create(rt, rt->rt_dst); if (!peer) { icmp_send(skb, ICMP_REDIRECT, ICMP_REDIR_HOST, rt->rt_gateway); return; @@ -1645,9 +1644,7 @@ static int ip_error(struct sk_buff *skb) break; } - if (!rt->peer) - rt_bind_peer(rt, rt->rt_dst, 1); - peer = rt->peer; + peer = rt_get_peer_create(rt, rt->rt_dst); send = true; if (peer) { @@ -1668,67 +1665,6 @@ out: kfree_skb(skb); return 0; } -/* - * The last two values are not from the RFC but - * are needed for AMPRnet AX.25 paths. - */ - -static const unsigned short mtu_plateau[] = -{32000, 17914, 8166, 4352, 2002, 1492, 576, 296, 216, 128 }; - -static inline unsigned short guess_mtu(unsigned short old_mtu) -{ - int i; - - for (i = 0; i < ARRAY_SIZE(mtu_plateau); i++) - if (old_mtu > mtu_plateau[i]) - return mtu_plateau[i]; - return 68; -} - -unsigned short ip_rt_frag_needed(struct net *net, const struct iphdr *iph, - unsigned short new_mtu, - struct net_device *dev) -{ - unsigned short old_mtu = ntohs(iph->tot_len); - unsigned short est_mtu = 0; - struct inet_peer *peer; - - peer = inet_getpeer_v4(iph->daddr, 1); - if (peer) { - unsigned short mtu = new_mtu; - - if (new_mtu < 68 || new_mtu >= old_mtu) { - /* BSD 4.2 derived systems incorrectly adjust - * tot_len by the IP header length, and report - * a zero MTU in the ICMP message. - */ - if (mtu == 0 && - old_mtu >= 68 + (iph->ihl << 2)) - old_mtu -= iph->ihl << 2; - mtu = guess_mtu(old_mtu); - } - - if (mtu < ip_rt_min_pmtu) - mtu = ip_rt_min_pmtu; - if (!peer->pmtu_expires || mtu < peer->pmtu_learned) { - unsigned long pmtu_expires; - - pmtu_expires = jiffies + ip_rt_mtu_expires; - if (!pmtu_expires) - pmtu_expires = 1UL; - - est_mtu = mtu; - peer->pmtu_learned = mtu; - peer->pmtu_expires = pmtu_expires; - atomic_inc(&__rt_peer_genid); - } - - inet_putpeer(peer); - } - return est_mtu ? : new_mtu; -} - static void check_peer_pmtu(struct dst_entry *dst, struct inet_peer *peer) { unsigned long expires = ACCESS_ONCE(peer->pmtu_expires); @@ -1753,9 +1689,7 @@ static void ip_rt_update_pmtu(struct dst_entry *dst, u32 mtu) dst_confirm(dst); - if (!rt->peer) - rt_bind_peer(rt, rt->rt_dst, 1); - peer = rt->peer; + peer = rt_get_peer_create(rt, rt->rt_dst); if (peer) { unsigned long pmtu_expires = ACCESS_ONCE(peer->pmtu_expires); @@ -1781,12 +1715,8 @@ static void ip_rt_update_pmtu(struct dst_entry *dst, u32 mtu) static void ipv4_validate_peer(struct rtable *rt) { if (rt->rt_peer_genid != rt_peer_genid()) { - struct inet_peer *peer; + struct inet_peer *peer = rt_get_peer(rt, rt->rt_dst); - if (!rt->peer) - rt_bind_peer(rt, rt->rt_dst, 0); - - peer = rt->peer; if (peer) { check_peer_pmtu(&rt->dst, peer); @@ -1812,14 +1742,13 @@ static struct dst_entry *ipv4_dst_check(struct dst_entry *dst, u32 cookie) static void ipv4_dst_destroy(struct dst_entry *dst) { struct rtable *rt = (struct rtable *) dst; - struct inet_peer *peer = rt->peer; if (rt->fi) { fib_info_put(rt->fi); rt->fi = NULL; } - if (peer) { - rt->peer = NULL; + if (rt_has_peer(rt)) { + struct inet_peer *peer = rt_peer_ptr(rt); inet_putpeer(peer); } } @@ -1832,8 +1761,11 @@ static void ipv4_link_failure(struct sk_buff *skb) icmp_send(skb, ICMP_DEST_UNREACH, ICMP_HOST_UNREACH, 0); rt = skb_rtable(skb); - if (rt && rt->peer && peer_pmtu_cleaned(rt->peer)) - dst_metric_set(&rt->dst, RTAX_MTU, rt->peer->pmtu_orig); + if (rt && rt_has_peer(rt)) { + struct inet_peer *peer = rt_peer_ptr(rt); + if (peer_pmtu_cleaned(peer)) + dst_metric_set(&rt->dst, RTAX_MTU, peer->pmtu_orig); + } } static int ip_rt_bug(struct sk_buff *skb) @@ -1935,6 +1867,7 @@ static unsigned int ipv4_mtu(const struct dst_entry *dst) static void rt_init_metrics(struct rtable *rt, const struct flowi4 *fl4, struct fib_info *fi) { + struct inet_peer_base *base; struct inet_peer *peer; int create = 0; @@ -1944,8 +1877,12 @@ static void rt_init_metrics(struct rtable *rt, const struct flowi4 *fl4, if (fl4 && (fl4->flowi4_flags & FLOWI_FLAG_PRECOW_METRICS)) create = 1; - rt->peer = peer = inet_getpeer_v4(rt->rt_dst, create); + base = inetpeer_base_ptr(rt->_peer); + BUG_ON(!base); + + peer = inet_getpeer_v4(base, rt->rt_dst, create); if (peer) { + __rt_set_peer(rt, peer); rt->rt_peer_genid = rt_peer_genid(); if (inet_metrics_new(peer)) memcpy(peer->metrics, fi->fib_metrics, @@ -2023,9 +1960,13 @@ static int ip_route_input_mc(struct sk_buff *skb, __be32 daddr, __be32 saddr, return -EINVAL; if (ipv4_is_multicast(saddr) || ipv4_is_lbcast(saddr) || - ipv4_is_loopback(saddr) || skb->protocol != htons(ETH_P_IP)) + skb->protocol != htons(ETH_P_IP)) goto e_inval; + if (likely(!IN_DEV_ROUTE_LOCALNET(in_dev))) + if (ipv4_is_loopback(saddr)) + goto e_inval; + if (ipv4_is_zeronet(saddr)) { if (!ipv4_is_local_multicast(daddr)) goto e_inval; @@ -2061,7 +2002,7 @@ static int ip_route_input_mc(struct sk_buff *skb, __be32 daddr, __be32 saddr, rth->rt_gateway = daddr; rth->rt_spec_dst= spec_dst; rth->rt_peer_genid = 0; - rth->peer = NULL; + rt_init_peer(rth, dev_net(dev)->ipv4.peers); rth->fi = NULL; if (our) { rth->dst.input= ip_local_deliver; @@ -2189,7 +2130,7 @@ static int __mkroute_input(struct sk_buff *skb, rth->rt_gateway = daddr; rth->rt_spec_dst= spec_dst; rth->rt_peer_genid = 0; - rth->peer = NULL; + rt_init_peer(rth, &res->table->tb_peers); rth->fi = NULL; rth->dst.input = ip_forward; @@ -2266,8 +2207,7 @@ static int ip_route_input_slow(struct sk_buff *skb, __be32 daddr, __be32 saddr, by fib_lookup. */ - if (ipv4_is_multicast(saddr) || ipv4_is_lbcast(saddr) || - ipv4_is_loopback(saddr)) + if (ipv4_is_multicast(saddr) || ipv4_is_lbcast(saddr)) goto martian_source; if (ipv4_is_lbcast(daddr) || (saddr == 0 && daddr == 0)) @@ -2279,9 +2219,17 @@ static int ip_route_input_slow(struct sk_buff *skb, __be32 daddr, __be32 saddr, if (ipv4_is_zeronet(saddr)) goto martian_source; - if (ipv4_is_zeronet(daddr) || ipv4_is_loopback(daddr)) + if (ipv4_is_zeronet(daddr)) goto martian_destination; + if (likely(!IN_DEV_ROUTE_LOCALNET(in_dev))) { + if (ipv4_is_loopback(daddr)) + goto martian_destination; + + if (ipv4_is_loopback(saddr)) + goto martian_source; + } + /* * Now we are ready to route packet. */ @@ -2372,7 +2320,7 @@ local_input: rth->rt_gateway = daddr; rth->rt_spec_dst= spec_dst; rth->rt_peer_genid = 0; - rth->peer = NULL; + rt_init_peer(rth, net->ipv4.peers); rth->fi = NULL; if (res.type == RTN_UNREACHABLE) { rth->dst.input= ip_error; @@ -2520,9 +2468,14 @@ static struct rtable *__mkroute_output(const struct fib_result *res, u16 type = res->type; struct rtable *rth; - if (ipv4_is_loopback(fl4->saddr) && !(dev_out->flags & IFF_LOOPBACK)) + in_dev = __in_dev_get_rcu(dev_out); + if (!in_dev) return ERR_PTR(-EINVAL); + if (likely(!IN_DEV_ROUTE_LOCALNET(in_dev))) + if (ipv4_is_loopback(fl4->saddr) && !(dev_out->flags & IFF_LOOPBACK)) + return ERR_PTR(-EINVAL); + if (ipv4_is_lbcast(fl4->daddr)) type = RTN_BROADCAST; else if (ipv4_is_multicast(fl4->daddr)) @@ -2533,10 +2486,6 @@ static struct rtable *__mkroute_output(const struct fib_result *res, if (dev_out->flags & IFF_LOOPBACK) flags |= RTCF_LOCAL; - in_dev = __in_dev_get_rcu(dev_out); - if (!in_dev) - return ERR_PTR(-EINVAL); - if (type == RTN_BROADCAST) { flags |= RTCF_BROADCAST | RTCF_LOCAL; fi = NULL; @@ -2576,7 +2525,9 @@ static struct rtable *__mkroute_output(const struct fib_result *res, rth->rt_gateway = fl4->daddr; rth->rt_spec_dst= fl4->saddr; rth->rt_peer_genid = 0; - rth->peer = NULL; + rt_init_peer(rth, (res->table ? + &res->table->tb_peers : + dev_net(dev_out)->ipv4.peers)); rth->fi = NULL; RT_CACHE_STAT_INC(out_slow_tot); @@ -2625,6 +2576,7 @@ static struct rtable *ip_route_output_slow(struct net *net, struct flowi4 *fl4) int orig_oif; res.fi = NULL; + res.table = NULL; #ifdef CONFIG_IP_MULTIPLE_TABLES res.r = NULL; #endif @@ -2730,6 +2682,7 @@ static struct rtable *ip_route_output_slow(struct net *net, struct flowi4 *fl4) if (fib_lookup(net, fl4, &res)) { res.fi = NULL; + res.table = NULL; if (fl4->flowi4_oif) { /* Apparently, routing tables are wrong. Assume, that the destination is on link. @@ -2913,9 +2866,7 @@ struct dst_entry *ipv4_blackhole_route(struct net *net, struct dst_entry *dst_or rt->rt_src = ort->rt_src; rt->rt_gateway = ort->rt_gateway; rt->rt_spec_dst = ort->rt_spec_dst; - rt->peer = ort->peer; - if (rt->peer) - atomic_inc(&rt->peer->refcnt); + rt_transfer_peer(rt, ort); rt->fi = ort->fi; if (rt->fi) atomic_inc(&rt->fi->fib_clntref); @@ -2953,7 +2904,6 @@ static int rt_fill_info(struct net *net, struct rtmsg *r; struct nlmsghdr *nlh; unsigned long expires = 0; - const struct inet_peer *peer = rt->peer; u32 id = 0, ts = 0, tsage = 0, error; nlh = nlmsg_put(skb, pid, seq, event, sizeof(*r), flags); @@ -3009,8 +2959,9 @@ static int rt_fill_info(struct net *net, goto nla_put_failure; error = rt->dst.error; - if (peer) { - inet_peer_refcheck(rt->peer); + if (rt_has_peer(rt)) { + const struct inet_peer *peer = rt_peer_ptr(rt); + inet_peer_refcheck(peer); id = atomic_read(&peer->ip_id_count) & 0xffff; if (peer->tcp_ts_stamp) { ts = peer->tcp_ts; @@ -3400,6 +3351,30 @@ static __net_initdata struct pernet_operations rt_genid_ops = { .init = rt_genid_init, }; +static int __net_init ipv4_inetpeer_init(struct net *net) +{ + struct inet_peer_base *bp = kmalloc(sizeof(*bp), GFP_KERNEL); + + if (!bp) + return -ENOMEM; + inet_peer_base_init(bp); + net->ipv4.peers = bp; + return 0; +} + +static void __net_exit ipv4_inetpeer_exit(struct net *net) +{ + struct inet_peer_base *bp = net->ipv4.peers; + + net->ipv4.peers = NULL; + inetpeer_invalidate_tree(bp); + kfree(bp); +} + +static __net_initdata struct pernet_operations ipv4_inetpeer_ops = { + .init = ipv4_inetpeer_init, + .exit = ipv4_inetpeer_exit, +}; #ifdef CONFIG_IP_ROUTE_CLASSID struct ip_rt_acct __percpu *ip_rt_acct __read_mostly; @@ -3480,6 +3455,7 @@ int __init ip_rt_init(void) register_pernet_subsys(&sysctl_route_ops); #endif register_pernet_subsys(&rt_genid_ops); + register_pernet_subsys(&ipv4_inetpeer_ops); return rc; } diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index c8d28c433b2b..fda2ca17135e 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -848,7 +848,6 @@ static int tcp_v4_send_synack(struct sock *sk, struct dst_entry *dst, err = net_xmit_eval(err); } - dst_release(dst); return err; } @@ -1821,40 +1820,25 @@ do_time_wait: goto discard_it; } -struct inet_peer *tcp_v4_get_peer(struct sock *sk, bool *release_it) +struct inet_peer *tcp_v4_get_peer(struct sock *sk) { struct rtable *rt = (struct rtable *) __sk_dst_get(sk); struct inet_sock *inet = inet_sk(sk); - struct inet_peer *peer; - if (!rt || - inet->cork.fl.u.ip4.daddr != inet->inet_daddr) { - peer = inet_getpeer_v4(inet->inet_daddr, 1); - *release_it = true; - } else { - if (!rt->peer) - rt_bind_peer(rt, inet->inet_daddr, 1); - peer = rt->peer; - *release_it = false; - } - - return peer; + /* If we don't have a valid cached route, or we're doing IP + * options which make the IPv4 header destination address + * different from our peer's, do not bother with this. + */ + if (!rt || inet->cork.fl.u.ip4.daddr != inet->inet_daddr) + return NULL; + return rt_get_peer_create(rt, inet->inet_daddr); } EXPORT_SYMBOL(tcp_v4_get_peer); -void *tcp_v4_tw_get_peer(struct sock *sk) -{ - const struct inet_timewait_sock *tw = inet_twsk(sk); - - return inet_getpeer_v4(tw->tw_daddr, 1); -} -EXPORT_SYMBOL(tcp_v4_tw_get_peer); - static struct timewait_sock_ops tcp_timewait_sock_ops = { .twsk_obj_size = sizeof(struct tcp_timewait_sock), .twsk_unique = tcp_twsk_unique, .twsk_destructor= tcp_twsk_destructor, - .twsk_getpeer = tcp_v4_tw_get_peer, }; const struct inet_connection_sock_af_ops ipv4_specific = { diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c index b85d9fe7d663..cb015317c9f7 100644 --- a/net/ipv4/tcp_minisocks.c +++ b/net/ipv4/tcp_minisocks.c @@ -60,9 +60,8 @@ static bool tcp_remember_stamp(struct sock *sk) const struct inet_connection_sock *icsk = inet_csk(sk); struct tcp_sock *tp = tcp_sk(sk); struct inet_peer *peer; - bool release_it; - peer = icsk->icsk_af_ops->get_peer(sk, &release_it); + peer = icsk->icsk_af_ops->get_peer(sk); if (peer) { if ((s32)(peer->tcp_ts - tp->rx_opt.ts_recent) <= 0 || ((u32)get_seconds() - peer->tcp_ts_stamp > TCP_PAWS_MSL && @@ -70,8 +69,6 @@ static bool tcp_remember_stamp(struct sock *sk) peer->tcp_ts_stamp = (u32)tp->rx_opt.ts_recent_stamp; peer->tcp_ts = tp->rx_opt.ts_recent; } - if (release_it) - inet_putpeer(peer); return true; } @@ -80,20 +77,19 @@ static bool tcp_remember_stamp(struct sock *sk) static bool tcp_tw_remember_stamp(struct inet_timewait_sock *tw) { + const struct tcp_timewait_sock *tcptw; struct sock *sk = (struct sock *) tw; struct inet_peer *peer; - peer = twsk_getpeer(sk); + tcptw = tcp_twsk(sk); + peer = tcptw->tw_peer; if (peer) { - const struct tcp_timewait_sock *tcptw = tcp_twsk(sk); - if ((s32)(peer->tcp_ts - tcptw->tw_ts_recent) <= 0 || ((u32)get_seconds() - peer->tcp_ts_stamp > TCP_PAWS_MSL && peer->tcp_ts_stamp <= (u32)tcptw->tw_ts_recent_stamp)) { peer->tcp_ts_stamp = (u32)tcptw->tw_ts_recent_stamp; peer->tcp_ts = tcptw->tw_ts_recent; } - inet_putpeer(peer); return true; } return false; @@ -317,9 +313,12 @@ void tcp_time_wait(struct sock *sk, int state, int timeo) const struct inet_connection_sock *icsk = inet_csk(sk); const struct tcp_sock *tp = tcp_sk(sk); bool recycle_ok = false; + bool recycle_on = false; - if (tcp_death_row.sysctl_tw_recycle && tp->rx_opt.ts_recent_stamp) + if (tcp_death_row.sysctl_tw_recycle && tp->rx_opt.ts_recent_stamp) { recycle_ok = tcp_remember_stamp(sk); + recycle_on = true; + } if (tcp_death_row.tw_count < tcp_death_row.sysctl_max_tw_buckets) tw = inet_twsk_alloc(sk, state); @@ -327,8 +326,10 @@ void tcp_time_wait(struct sock *sk, int state, int timeo) if (tw != NULL) { struct tcp_timewait_sock *tcptw = tcp_twsk((struct sock *)tw); const int rto = (icsk->icsk_rto << 2) - (icsk->icsk_rto >> 1); + struct inet_sock *inet = inet_sk(sk); + struct inet_peer *peer = NULL; - tw->tw_transparent = inet_sk(sk)->transparent; + tw->tw_transparent = inet->transparent; tw->tw_rcv_wscale = tp->rx_opt.rcv_wscale; tcptw->tw_rcv_nxt = tp->rcv_nxt; tcptw->tw_snd_nxt = tp->snd_nxt; @@ -350,6 +351,12 @@ void tcp_time_wait(struct sock *sk, int state, int timeo) } #endif + if (recycle_on) + peer = icsk->icsk_af_ops->get_peer(sk); + tcptw->tw_peer = peer; + if (peer) + atomic_inc(&peer->refcnt); + #ifdef CONFIG_TCP_MD5SIG /* * The timewait bucket does not have the key DB from the @@ -401,8 +408,11 @@ void tcp_time_wait(struct sock *sk, int state, int timeo) void tcp_twsk_destructor(struct sock *sk) { -#ifdef CONFIG_TCP_MD5SIG struct tcp_timewait_sock *twsk = tcp_twsk(sk); + + if (twsk->tw_peer) + inet_putpeer(twsk->tw_peer); +#ifdef CONFIG_TCP_MD5SIG if (twsk->tw_md5_key) { tcp_free_md5sig_pool(); kfree_rcu(twsk->tw_md5_key, rcu); diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index 803cbfe82fbc..c465d3e51e28 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -2442,7 +2442,16 @@ int tcp_send_synack(struct sock *sk) return tcp_transmit_skb(sk, skb, 1, GFP_ATOMIC); } -/* Prepare a SYN-ACK. */ +/** + * tcp_make_synack - Prepare a SYN-ACK. + * sk: listener socket + * dst: dst entry attached to the SYNACK + * req: request_sock pointer + * rvp: request_values pointer + * + * Allocate one skb and build a SYNACK packet. + * @dst is consumed : Caller should not use it again. + */ struct sk_buff *tcp_make_synack(struct sock *sk, struct dst_entry *dst, struct request_sock *req, struct request_values *rvp) @@ -2461,14 +2470,15 @@ struct sk_buff *tcp_make_synack(struct sock *sk, struct dst_entry *dst, if (cvp != NULL && cvp->s_data_constant && cvp->s_data_desired) s_data_desired = cvp->s_data_desired; - skb = sock_wmalloc(sk, MAX_TCP_HEADER + 15 + s_data_desired, 1, GFP_ATOMIC); - if (skb == NULL) + skb = alloc_skb(MAX_TCP_HEADER + 15 + s_data_desired, GFP_ATOMIC); + if (unlikely(!skb)) { + dst_release(dst); return NULL; - + } /* Reserve space for headers. */ skb_reserve(skb, MAX_TCP_HEADER); - skb_dst_set(skb, dst_clone(dst)); + skb_dst_set(skb, dst); mss = dst_metric_advmss(dst); if (tp->rx_opt.user_mss && tp->rx_opt.user_mss < mss) diff --git a/net/ipv4/xfrm4_policy.c b/net/ipv4/xfrm4_policy.c index 0d3426cb5c4f..8855d8268552 100644 --- a/net/ipv4/xfrm4_policy.c +++ b/net/ipv4/xfrm4_policy.c @@ -90,9 +90,7 @@ static int xfrm4_fill_dst(struct xfrm_dst *xdst, struct net_device *dev, xdst->u.dst.dev = dev; dev_hold(dev); - xdst->u.rt.peer = rt->peer; - if (rt->peer) - atomic_inc(&rt->peer->refcnt); + rt_transfer_peer(&xdst->u.rt, rt); /* Sheit... I remember I did this right. Apparently, * it was magically lost, so this code needs audit */ @@ -212,8 +210,10 @@ static void xfrm4_dst_destroy(struct dst_entry *dst) dst_destroy_metrics_generic(dst); - if (likely(xdst->u.rt.peer)) - inet_putpeer(xdst->u.rt.peer); + if (rt_has_peer(&xdst->u.rt)) { + struct inet_peer *peer = rt_peer_ptr(&xdst->u.rt); + inet_putpeer(peer); + } xfrm_dst_destroy(xdst); } diff --git a/net/ipv6/exthdrs.c b/net/ipv6/exthdrs.c index 6447dc49429f..fa3d9c328092 100644 --- a/net/ipv6/exthdrs.c +++ b/net/ipv6/exthdrs.c @@ -791,14 +791,14 @@ static int ipv6_renew_option(void *ohdr, if (ohdr) { memcpy(*p, ohdr, ipv6_optlen((struct ipv6_opt_hdr *)ohdr)); *hdr = (struct ipv6_opt_hdr *)*p; - *p += CMSG_ALIGN(ipv6_optlen(*(struct ipv6_opt_hdr **)hdr)); + *p += CMSG_ALIGN(ipv6_optlen(*hdr)); } } else { if (newopt) { if (copy_from_user(*p, newopt, newoptlen)) return -EFAULT; *hdr = (struct ipv6_opt_hdr *)*p; - if (ipv6_optlen(*(struct ipv6_opt_hdr **)hdr) > newoptlen) + if (ipv6_optlen(*hdr) > newoptlen) return -EINVAL; *p += CMSG_ALIGN(newoptlen); } diff --git a/net/ipv6/icmp.c b/net/ipv6/icmp.c index 091a2971c7b7..ed89bba745a1 100644 --- a/net/ipv6/icmp.c +++ b/net/ipv6/icmp.c @@ -188,14 +188,14 @@ static inline bool icmpv6_xrlim_allow(struct sock *sk, u8 type, } else { struct rt6_info *rt = (struct rt6_info *)dst; int tmo = net->ipv6.sysctl.icmpv6_time; + struct inet_peer *peer; /* Give more bandwidth to wider prefixes. */ if (rt->rt6i_dst.plen < 128) tmo >>= ((128 - rt->rt6i_dst.plen)>>5); - if (!rt->rt6i_peer) - rt6_bind_peer(rt, 1); - res = inet_peer_xrlim_allow(rt->rt6i_peer, tmo); + peer = rt6_get_peer_create(rt); + res = inet_peer_xrlim_allow(peer, tmo); } dst_release(dst); return res; diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c index 74c21b924a79..215afc74d8aa 100644 --- a/net/ipv6/ip6_fib.c +++ b/net/ipv6/ip6_fib.c @@ -197,6 +197,7 @@ static struct fib6_table *fib6_alloc_table(struct net *net, u32 id) table->tb6_id = id; table->tb6_root.leaf = net->ipv6.ip6_null_entry; table->tb6_root.fn_flags = RTN_ROOT | RTN_TL_ROOT | RTN_RTINFO; + inet_peer_base_init(&table->tb6_peers); } return table; @@ -1633,6 +1634,7 @@ static int __net_init fib6_net_init(struct net *net) net->ipv6.fib6_main_tbl->tb6_root.leaf = net->ipv6.ip6_null_entry; net->ipv6.fib6_main_tbl->tb6_root.fn_flags = RTN_ROOT | RTN_TL_ROOT | RTN_RTINFO; + inet_peer_base_init(&net->ipv6.fib6_main_tbl->tb6_peers); #ifdef CONFIG_IPV6_MULTIPLE_TABLES net->ipv6.fib6_local_tbl = kzalloc(sizeof(*net->ipv6.fib6_local_tbl), @@ -1643,6 +1645,7 @@ static int __net_init fib6_net_init(struct net *net) net->ipv6.fib6_local_tbl->tb6_root.leaf = net->ipv6.ip6_null_entry; net->ipv6.fib6_local_tbl->tb6_root.fn_flags = RTN_ROOT | RTN_TL_ROOT | RTN_RTINFO; + inet_peer_base_init(&net->ipv6.fib6_local_tbl->tb6_peers); #endif fib6_tables_init(net); @@ -1666,8 +1669,10 @@ static void fib6_net_exit(struct net *net) del_timer_sync(&net->ipv6.ip6_fib_timer); #ifdef CONFIG_IPV6_MULTIPLE_TABLES + inetpeer_invalidate_tree(&net->ipv6.fib6_local_tbl->tb6_peers); kfree(net->ipv6.fib6_local_tbl); #endif + inetpeer_invalidate_tree(&net->ipv6.fib6_main_tbl->tb6_peers); kfree(net->ipv6.fib6_main_tbl); kfree(net->ipv6.fib_table_hash); kfree(net->ipv6.rt6_stats); diff --git a/net/ipv6/ip6_output.c b/net/ipv6/ip6_output.c index decc21d19c53..a233a7ccbc3a 100644 --- a/net/ipv6/ip6_output.c +++ b/net/ipv6/ip6_output.c @@ -83,19 +83,6 @@ int ip6_local_out(struct sk_buff *skb) } EXPORT_SYMBOL_GPL(ip6_local_out); -/* dev_loopback_xmit for use with netfilter. */ -static int ip6_dev_loopback_xmit(struct sk_buff *newskb) -{ - skb_reset_mac_header(newskb); - __skb_pull(newskb, skb_network_offset(newskb)); - newskb->pkt_type = PACKET_LOOPBACK; - newskb->ip_summed = CHECKSUM_UNNECESSARY; - WARN_ON(!skb_dst(newskb)); - - netif_rx_ni(newskb); - return 0; -} - static int ip6_finish_output2(struct sk_buff *skb) { struct dst_entry *dst = skb_dst(skb); @@ -121,7 +108,7 @@ static int ip6_finish_output2(struct sk_buff *skb) if (newskb) NF_HOOK(NFPROTO_IPV6, NF_INET_POST_ROUTING, newskb, NULL, newskb->dev, - ip6_dev_loopback_xmit); + dev_loopback_xmit); if (ipv6_hdr(skb)->hop_limit == 0) { IP6_INC_STATS(dev_net(dev), idev, @@ -463,6 +450,7 @@ int ip6_forward(struct sk_buff *skb) */ if (skb->dev == dst->dev && opt->srcrt == 0 && !skb_sec_path(skb)) { struct in6_addr *target = NULL; + struct inet_peer *peer; struct rt6_info *rt; /* @@ -476,13 +464,12 @@ int ip6_forward(struct sk_buff *skb) else target = &hdr->daddr; - if (!rt->rt6i_peer) - rt6_bind_peer(rt, 1); + peer = rt6_get_peer_create(rt); /* Limit redirects both by destination (here) and by source (inside ndisc_send_redirect) */ - if (inet_peer_xrlim_allow(rt->rt6i_peer, 1*HZ)) + if (inet_peer_xrlim_allow(peer, 1*HZ)) ndisc_send_redirect(skb, target); } else { int addrtype = ipv6_addr_type(&hdr->saddr); @@ -603,11 +590,8 @@ void ipv6_select_ident(struct frag_hdr *fhdr, struct rt6_info *rt) int old, new; if (rt && !(rt->dst.flags & DST_NOPEER)) { - struct inet_peer *peer; + struct inet_peer *peer = rt6_get_peer_create(rt); - if (!rt->rt6i_peer) - rt6_bind_peer(rt, 1); - peer = rt->rt6i_peer; if (peer) { fhdr->identification = htonl(inet_getid(peer, 0)); return; diff --git a/net/ipv6/ndisc.c b/net/ipv6/ndisc.c index 54f62d3b8dd6..69a6330dea91 100644 --- a/net/ipv6/ndisc.c +++ b/net/ipv6/ndisc.c @@ -1472,6 +1472,7 @@ void ndisc_send_redirect(struct sk_buff *skb, const struct in6_addr *target) struct net *net = dev_net(dev); struct sock *sk = net->ipv6.ndisc_sk; int len = sizeof(struct icmp6hdr) + 2 * sizeof(struct in6_addr); + struct inet_peer *peer; struct sk_buff *buff; struct icmp6hdr *icmph; struct in6_addr saddr_buf; @@ -1518,9 +1519,8 @@ void ndisc_send_redirect(struct sk_buff *skb, const struct in6_addr *target) "Redirect: destination is not a neighbour\n"); goto release; } - if (!rt->rt6i_peer) - rt6_bind_peer(rt, 1); - if (!inet_peer_xrlim_allow(rt->rt6i_peer, 1*HZ)) + peer = rt6_get_peer_create(rt); + if (!inet_peer_xrlim_allow(peer, 1*HZ)) goto release; if (dev->addr_len) { diff --git a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c index 3224ef90a21a..fca10da80ea7 100644 --- a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c +++ b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c @@ -333,37 +333,75 @@ MODULE_ALIAS("nf_conntrack-" __stringify(AF_INET6)); MODULE_LICENSE("GPL"); MODULE_AUTHOR("Yasuyuki KOZAKAI @USAGI <yasuyuki.kozakai@toshiba.co.jp>"); -static int __init nf_conntrack_l3proto_ipv6_init(void) +static int ipv6_net_init(struct net *net) { int ret = 0; - need_conntrack(); - nf_defrag_ipv6_enable(); - - ret = nf_conntrack_l4proto_register(&nf_conntrack_l4proto_tcp6); + ret = nf_conntrack_l4proto_register(net, + &nf_conntrack_l4proto_tcp6); if (ret < 0) { - pr_err("nf_conntrack_ipv6: can't register tcp.\n"); - return ret; + printk(KERN_ERR "nf_conntrack_l4proto_tcp6: protocol register failed\n"); + goto out; } - - ret = nf_conntrack_l4proto_register(&nf_conntrack_l4proto_udp6); + ret = nf_conntrack_l4proto_register(net, + &nf_conntrack_l4proto_udp6); if (ret < 0) { - pr_err("nf_conntrack_ipv6: can't register udp.\n"); - goto cleanup_tcp; + printk(KERN_ERR "nf_conntrack_l4proto_udp6: protocol register failed\n"); + goto cleanup_tcp6; } - - ret = nf_conntrack_l4proto_register(&nf_conntrack_l4proto_icmpv6); + ret = nf_conntrack_l4proto_register(net, + &nf_conntrack_l4proto_icmpv6); if (ret < 0) { - pr_err("nf_conntrack_ipv6: can't register icmpv6.\n"); - goto cleanup_udp; + printk(KERN_ERR "nf_conntrack_l4proto_icmp6: protocol register failed\n"); + goto cleanup_udp6; } - - ret = nf_conntrack_l3proto_register(&nf_conntrack_l3proto_ipv6); + ret = nf_conntrack_l3proto_register(net, + &nf_conntrack_l3proto_ipv6); if (ret < 0) { - pr_err("nf_conntrack_ipv6: can't register ipv6\n"); + printk(KERN_ERR "nf_conntrack_l3proto_ipv6: protocol register failed\n"); goto cleanup_icmpv6; } + return 0; + cleanup_icmpv6: + nf_conntrack_l4proto_unregister(net, + &nf_conntrack_l4proto_icmpv6); + cleanup_udp6: + nf_conntrack_l4proto_unregister(net, + &nf_conntrack_l4proto_udp6); + cleanup_tcp6: + nf_conntrack_l4proto_unregister(net, + &nf_conntrack_l4proto_tcp6); + out: + return ret; +} +static void ipv6_net_exit(struct net *net) +{ + nf_conntrack_l3proto_unregister(net, + &nf_conntrack_l3proto_ipv6); + nf_conntrack_l4proto_unregister(net, + &nf_conntrack_l4proto_icmpv6); + nf_conntrack_l4proto_unregister(net, + &nf_conntrack_l4proto_udp6); + nf_conntrack_l4proto_unregister(net, + &nf_conntrack_l4proto_tcp6); +} + +static struct pernet_operations ipv6_net_ops = { + .init = ipv6_net_init, + .exit = ipv6_net_exit, +}; + +static int __init nf_conntrack_l3proto_ipv6_init(void) +{ + int ret = 0; + + need_conntrack(); + nf_defrag_ipv6_enable(); + + ret = register_pernet_subsys(&ipv6_net_ops); + if (ret < 0) + goto cleanup_pernet; ret = nf_register_hooks(ipv6_conntrack_ops, ARRAY_SIZE(ipv6_conntrack_ops)); if (ret < 0) { @@ -374,13 +412,8 @@ static int __init nf_conntrack_l3proto_ipv6_init(void) return ret; cleanup_ipv6: - nf_conntrack_l3proto_unregister(&nf_conntrack_l3proto_ipv6); - cleanup_icmpv6: - nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_icmpv6); - cleanup_udp: - nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_udp6); - cleanup_tcp: - nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_tcp6); + unregister_pernet_subsys(&ipv6_net_ops); + cleanup_pernet: return ret; } @@ -388,10 +421,7 @@ static void __exit nf_conntrack_l3proto_ipv6_fini(void) { synchronize_net(); nf_unregister_hooks(ipv6_conntrack_ops, ARRAY_SIZE(ipv6_conntrack_ops)); - nf_conntrack_l3proto_unregister(&nf_conntrack_l3proto_ipv6); - nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_icmpv6); - nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_udp6); - nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_tcp6); + unregister_pernet_subsys(&ipv6_net_ops); } module_init(nf_conntrack_l3proto_ipv6_init); diff --git a/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c b/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c index 3e81904fbbcd..63ed0121836c 100644 --- a/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c +++ b/net/ipv6/netfilter/nf_conntrack_proto_icmpv6.c @@ -29,6 +29,11 @@ static unsigned int nf_ct_icmpv6_timeout __read_mostly = 30*HZ; +static inline struct nf_icmp_net *icmpv6_pernet(struct net *net) +{ + return &net->ct.nf_ct_proto.icmpv6; +} + static bool icmpv6_pkt_to_tuple(const struct sk_buff *skb, unsigned int dataoff, struct nf_conntrack_tuple *tuple) @@ -90,7 +95,7 @@ static int icmpv6_print_tuple(struct seq_file *s, static unsigned int *icmpv6_get_timeouts(struct net *net) { - return &nf_ct_icmpv6_timeout; + return &icmpv6_pernet(net)->timeout; } /* Returns verdict for packet, or -1 for invalid. */ @@ -281,16 +286,18 @@ static int icmpv6_nlattr_tuple_size(void) #include <linux/netfilter/nfnetlink.h> #include <linux/netfilter/nfnetlink_cttimeout.h> -static int icmpv6_timeout_nlattr_to_obj(struct nlattr *tb[], void *data) +static int icmpv6_timeout_nlattr_to_obj(struct nlattr *tb[], + struct net *net, void *data) { unsigned int *timeout = data; + struct nf_icmp_net *in = icmpv6_pernet(net); if (tb[CTA_TIMEOUT_ICMPV6_TIMEOUT]) { *timeout = ntohl(nla_get_be32(tb[CTA_TIMEOUT_ICMPV6_TIMEOUT])) * HZ; } else { /* Set default ICMPv6 timeout. */ - *timeout = nf_ct_icmpv6_timeout; + *timeout = in->timeout; } return 0; } @@ -315,11 +322,9 @@ icmpv6_timeout_nla_policy[CTA_TIMEOUT_ICMPV6_MAX+1] = { #endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ #ifdef CONFIG_SYSCTL -static struct ctl_table_header *icmpv6_sysctl_header; static struct ctl_table icmpv6_sysctl_table[] = { { .procname = "nf_conntrack_icmpv6_timeout", - .data = &nf_ct_icmpv6_timeout, .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, @@ -328,6 +333,22 @@ static struct ctl_table icmpv6_sysctl_table[] = { }; #endif /* CONFIG_SYSCTL */ +static int icmpv6_init_net(struct net *net) +{ + struct nf_icmp_net *in = icmpv6_pernet(net); + struct nf_proto_net *pn = (struct nf_proto_net *)in; + in->timeout = nf_ct_icmpv6_timeout; +#ifdef CONFIG_SYSCTL + pn->ctl_table = kmemdup(icmpv6_sysctl_table, + sizeof(icmpv6_sysctl_table), + GFP_KERNEL); + if (!pn->ctl_table) + return -ENOMEM; + pn->ctl_table[0].data = &in->timeout; +#endif + return 0; +} + struct nf_conntrack_l4proto nf_conntrack_l4proto_icmpv6 __read_mostly = { .l3proto = PF_INET6, @@ -355,8 +376,5 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_icmpv6 __read_mostly = .nla_policy = icmpv6_timeout_nla_policy, }, #endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ -#ifdef CONFIG_SYSCTL - .ctl_table_header = &icmpv6_sysctl_header, - .ctl_table = icmpv6_sysctl_table, -#endif + .init_net = icmpv6_init_net, }; diff --git a/net/ipv6/route.c b/net/ipv6/route.c index 999a982ad3fd..58a3ec23da2f 100644 --- a/net/ipv6/route.c +++ b/net/ipv6/route.c @@ -99,10 +99,7 @@ static u32 *ipv6_cow_metrics(struct dst_entry *dst, unsigned long old) if (!(rt->dst.flags & DST_HOST)) return NULL; - if (!rt->rt6i_peer) - rt6_bind_peer(rt, 1); - - peer = rt->rt6i_peer; + peer = rt6_get_peer_create(rt); if (peer) { u32 *old_p = __DST_METRICS_PTR(old); unsigned long prev, new; @@ -261,16 +258,19 @@ static struct rt6_info ip6_blk_hole_entry_template = { #endif /* allocate dst with ip6_dst_ops */ -static inline struct rt6_info *ip6_dst_alloc(struct dst_ops *ops, +static inline struct rt6_info *ip6_dst_alloc(struct net *net, struct net_device *dev, - int flags) + int flags, + struct fib6_table *table) { - struct rt6_info *rt = dst_alloc(ops, dev, 0, 0, flags); + struct rt6_info *rt = dst_alloc(&net->ipv6.ip6_dst_ops, dev, + 0, 0, flags); - if (rt) + if (rt) { memset(&rt->rt6i_table, 0, sizeof(*rt) - sizeof(struct dst_entry)); - + rt6_init_peer(rt, table ? &table->tb6_peers : net->ipv6.peers); + } return rt; } @@ -278,7 +278,6 @@ static void ip6_dst_destroy(struct dst_entry *dst) { struct rt6_info *rt = (struct rt6_info *)dst; struct inet6_dev *idev = rt->rt6i_idev; - struct inet_peer *peer = rt->rt6i_peer; if (!(rt->dst.flags & DST_HOST)) dst_destroy_metrics_generic(dst); @@ -291,8 +290,8 @@ static void ip6_dst_destroy(struct dst_entry *dst) if (!(rt->rt6i_flags & RTF_EXPIRES) && dst->from) dst_release(dst->from); - if (peer) { - rt->rt6i_peer = NULL; + if (rt6_has_peer(rt)) { + struct inet_peer *peer = rt6_peer_ptr(rt); inet_putpeer(peer); } } @@ -306,13 +305,20 @@ static u32 rt6_peer_genid(void) void rt6_bind_peer(struct rt6_info *rt, int create) { + struct inet_peer_base *base; struct inet_peer *peer; - peer = inet_getpeer_v6(&rt->rt6i_dst.addr, create); - if (peer && cmpxchg(&rt->rt6i_peer, NULL, peer) != NULL) - inet_putpeer(peer); - else - rt->rt6i_peer_genid = rt6_peer_genid(); + base = inetpeer_base_ptr(rt->_rt6i_peer); + if (!base) + return; + + peer = inet_getpeer_v6(base, &rt->rt6i_dst.addr, create); + if (peer) { + if (!rt6_set_peer(rt, peer)) + inet_putpeer(peer); + else + rt->rt6i_peer_genid = rt6_peer_genid(); + } } static void ip6_dst_ifdown(struct dst_entry *dst, struct net_device *dev, @@ -952,6 +958,7 @@ struct dst_entry *ip6_blackhole_route(struct net *net, struct dst_entry *dst_ori rt = dst_alloc(&ip6_dst_blackhole_ops, ort->dst.dev, 1, 0, 0); if (rt) { memset(&rt->rt6i_table, 0, sizeof(*rt) - sizeof(struct dst_entry)); + rt6_init_peer(rt, net->ipv6.peers); new = &rt->dst; @@ -996,7 +1003,7 @@ static struct dst_entry *ip6_dst_check(struct dst_entry *dst, u32 cookie) if (rt->rt6i_node && (rt->rt6i_node->fn_sernum == cookie)) { if (rt->rt6i_peer_genid != rt6_peer_genid()) { - if (!rt->rt6i_peer) + if (!rt6_has_peer(rt)) rt6_bind_peer(rt, 0); rt->rt6i_peer_genid = rt6_peer_genid(); } @@ -1110,7 +1117,7 @@ struct dst_entry *icmp6_dst_alloc(struct net_device *dev, if (unlikely(!idev)) return ERR_PTR(-ENODEV); - rt = ip6_dst_alloc(&net->ipv6.ip6_dst_ops, dev, 0); + rt = ip6_dst_alloc(net, dev, 0, NULL); if (unlikely(!rt)) { in6_dev_put(idev); dst = ERR_PTR(-ENOMEM); @@ -1292,7 +1299,7 @@ int ip6_route_add(struct fib6_config *cfg) if (!table) goto out; - rt = ip6_dst_alloc(&net->ipv6.ip6_dst_ops, NULL, DST_NOCOUNT); + rt = ip6_dst_alloc(net, NULL, DST_NOCOUNT, table); if (!rt) { err = -ENOMEM; @@ -1814,8 +1821,8 @@ static struct rt6_info *ip6_rt_copy(struct rt6_info *ort, const struct in6_addr *dest) { struct net *net = dev_net(ort->dst.dev); - struct rt6_info *rt = ip6_dst_alloc(&net->ipv6.ip6_dst_ops, - ort->dst.dev, 0); + struct rt6_info *rt = ip6_dst_alloc(net, ort->dst.dev, 0, + ort->rt6i_table); if (rt) { rt->dst.input = ort->dst.input; @@ -2099,8 +2106,7 @@ struct rt6_info *addrconf_dst_alloc(struct inet6_dev *idev, bool anycast) { struct net *net = dev_net(idev->dev); - struct rt6_info *rt = ip6_dst_alloc(&net->ipv6.ip6_dst_ops, - net->loopback_dev, 0); + struct rt6_info *rt = ip6_dst_alloc(net, net->loopback_dev, 0, NULL); int err; if (!rt) { @@ -2521,7 +2527,9 @@ static int rt6_fill_node(struct net *net, else expires = INT_MAX; - peer = rt->rt6i_peer; + peer = NULL; + if (rt6_has_peer(rt)) + peer = rt6_peer_ptr(rt); ts = tsage = 0; if (peer && peer->tcp_ts_stamp) { ts = peer->tcp_ts; @@ -2998,6 +3006,31 @@ static struct pernet_operations ip6_route_net_ops = { .exit = ip6_route_net_exit, }; +static int __net_init ipv6_inetpeer_init(struct net *net) +{ + struct inet_peer_base *bp = kmalloc(sizeof(*bp), GFP_KERNEL); + + if (!bp) + return -ENOMEM; + inet_peer_base_init(bp); + net->ipv6.peers = bp; + return 0; +} + +static void __net_exit ipv6_inetpeer_exit(struct net *net) +{ + struct inet_peer_base *bp = net->ipv6.peers; + + net->ipv6.peers = NULL; + inetpeer_invalidate_tree(bp); + kfree(bp); +} + +static struct pernet_operations ipv6_inetpeer_ops = { + .init = ipv6_inetpeer_init, + .exit = ipv6_inetpeer_exit, +}; + static struct notifier_block ip6_route_dev_notifier = { .notifier_call = ip6_route_dev_notify, .priority = 0, @@ -3022,6 +3055,10 @@ int __init ip6_route_init(void) if (ret) goto out_dst_entries; + ret = register_pernet_subsys(&ipv6_inetpeer_ops); + if (ret) + goto out_register_subsys; + ip6_dst_blackhole_ops.kmem_cachep = ip6_dst_ops_template.kmem_cachep; /* Registering of the loopback is done before this portion of code, @@ -3037,7 +3074,7 @@ int __init ip6_route_init(void) #endif ret = fib6_init(); if (ret) - goto out_register_subsys; + goto out_register_inetpeer; ret = xfrm6_init(); if (ret) @@ -3066,6 +3103,8 @@ xfrm6_init: xfrm6_fini(); out_fib6_init: fib6_gc_cleanup(); +out_register_inetpeer: + unregister_pernet_subsys(&ipv6_inetpeer_ops); out_register_subsys: unregister_pernet_subsys(&ip6_route_net_ops); out_dst_entries: @@ -3081,6 +3120,7 @@ void ip6_route_cleanup(void) fib6_rules_cleanup(); xfrm6_fini(); fib6_gc_cleanup(); + unregister_pernet_subsys(&ipv6_inetpeer_ops); unregister_pernet_subsys(&ip6_route_net_ops); dst_entries_destroy(&ip6_dst_blackhole_ops); kmem_cache_destroy(ip6_dst_ops_template.kmem_cachep); diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c index 3a9aec29581a..f91b0bfd12d5 100644 --- a/net/ipv6/tcp_ipv6.c +++ b/net/ipv6/tcp_ipv6.c @@ -522,7 +522,6 @@ static int tcp_v6_send_synack(struct sock *sk, struct request_sock *req, done: if (opt && opt != np->opt) sock_kfree_s(sk, opt, opt->tot_len); - dst_release(dst); return err; } @@ -1733,42 +1732,24 @@ do_time_wait: goto discard_it; } -static struct inet_peer *tcp_v6_get_peer(struct sock *sk, bool *release_it) +static struct inet_peer *tcp_v6_get_peer(struct sock *sk) { struct rt6_info *rt = (struct rt6_info *) __sk_dst_get(sk); struct ipv6_pinfo *np = inet6_sk(sk); - struct inet_peer *peer; - - if (!rt || - !ipv6_addr_equal(&np->daddr, &rt->rt6i_dst.addr)) { - peer = inet_getpeer_v6(&np->daddr, 1); - *release_it = true; - } else { - if (!rt->rt6i_peer) - rt6_bind_peer(rt, 1); - peer = rt->rt6i_peer; - *release_it = false; - } - - return peer; -} -static void *tcp_v6_tw_get_peer(struct sock *sk) -{ - const struct inet6_timewait_sock *tw6 = inet6_twsk(sk); - const struct inet_timewait_sock *tw = inet_twsk(sk); - - if (tw->tw_family == AF_INET) - return tcp_v4_tw_get_peer(sk); - - return inet_getpeer_v6(&tw6->tw_v6_daddr, 1); + /* If we don't have a valid cached route, or we're doing IP + * options which make the IPv6 header destination address + * different from our peer's, do not bother with this. + */ + if (!rt || !ipv6_addr_equal(&np->daddr, &rt->rt6i_dst.addr)) + return NULL; + return rt6_get_peer_create(rt); } static struct timewait_sock_ops tcp6_timewait_sock_ops = { .twsk_obj_size = sizeof(struct tcp6_timewait_sock), .twsk_unique = tcp_twsk_unique, .twsk_destructor= tcp_twsk_destructor, - .twsk_getpeer = tcp_v6_tw_get_peer, }; static const struct inet_connection_sock_af_ops ipv6_specific = { diff --git a/net/ipv6/xfrm6_policy.c b/net/ipv6/xfrm6_policy.c index 8625fba96db9..d7494845efbf 100644 --- a/net/ipv6/xfrm6_policy.c +++ b/net/ipv6/xfrm6_policy.c @@ -99,9 +99,7 @@ static int xfrm6_fill_dst(struct xfrm_dst *xdst, struct net_device *dev, if (!xdst->u.rt6.rt6i_idev) return -ENODEV; - xdst->u.rt6.rt6i_peer = rt->rt6i_peer; - if (rt->rt6i_peer) - atomic_inc(&rt->rt6i_peer->refcnt); + rt6_transfer_peer(&xdst->u.rt6, rt); /* Sheit... I remember I did this right. Apparently, * it was magically lost, so this code needs audit */ @@ -223,8 +221,10 @@ static void xfrm6_dst_destroy(struct dst_entry *dst) if (likely(xdst->u.rt6.rt6i_idev)) in6_dev_put(xdst->u.rt6.rt6i_idev); dst_destroy_metrics_generic(dst); - if (likely(xdst->u.rt6.rt6i_peer)) - inet_putpeer(xdst->u.rt6.rt6i_peer); + if (rt6_has_peer(&xdst->u.rt6)) { + struct inet_peer *peer = rt6_peer_ptr(&xdst->u.rt6); + inet_putpeer(peer); + } xfrm_dst_destroy(xdst); } diff --git a/net/irda/irqueue.c b/net/irda/irqueue.c index f06947c4fa82..7152624ed5f1 100644 --- a/net/irda/irqueue.c +++ b/net/irda/irqueue.c @@ -523,7 +523,7 @@ void *hashbin_remove_first( hashbin_t *hashbin) * Dequeue the entry... */ dequeue_general( (irda_queue_t**) &hashbin->hb_queue[ bin ], - (irda_queue_t*) entry ); + entry); hashbin->hb_size--; entry->q_next = NULL; entry->q_prev = NULL; @@ -615,7 +615,7 @@ void* hashbin_remove( hashbin_t* hashbin, long hashv, const char* name) */ if ( found ) { dequeue_general( (irda_queue_t**) &hashbin->hb_queue[ bin ], - (irda_queue_t*) entry ); + entry); hashbin->hb_size--; /* @@ -685,7 +685,7 @@ void* hashbin_remove_this( hashbin_t* hashbin, irda_queue_t* entry) * Dequeue the entry... */ dequeue_general( (irda_queue_t**) &hashbin->hb_queue[ bin ], - (irda_queue_t*) entry ); + entry); hashbin->hb_size--; entry->q_next = NULL; entry->q_prev = NULL; diff --git a/net/l2tp/l2tp_ppp.c b/net/l2tp/l2tp_ppp.c index 8ef6b9416cba..286366ef8930 100644 --- a/net/l2tp/l2tp_ppp.c +++ b/net/l2tp/l2tp_ppp.c @@ -1522,8 +1522,8 @@ static int pppol2tp_session_getsockopt(struct sock *sk, * handler, according to whether the PPPoX socket is a for a regular session * or the special tunnel type. */ -static int pppol2tp_getsockopt(struct socket *sock, int level, - int optname, char __user *optval, int __user *optlen) +static int pppol2tp_getsockopt(struct socket *sock, int level, int optname, + char __user *optval, int __user *optlen) { struct sock *sk = sock->sk; struct l2tp_session *session; @@ -1535,7 +1535,7 @@ static int pppol2tp_getsockopt(struct socket *sock, int level, if (level != SOL_PPPOL2TP) return udp_prot.getsockopt(sk, level, optname, optval, optlen); - if (get_user(len, (int __user *) optlen)) + if (get_user(len, optlen)) return -EFAULT; len = min_t(unsigned int, len, sizeof(int)); @@ -1568,7 +1568,7 @@ static int pppol2tp_getsockopt(struct socket *sock, int level, err = pppol2tp_session_getsockopt(sk, session, optname, &val); err = -EFAULT; - if (put_user(len, (int __user *) optlen)) + if (put_user(len, optlen)) goto end_put_sess; if (copy_to_user((void __user *) optval, &val, len)) diff --git a/net/mac80211/Makefile b/net/mac80211/Makefile index 3e9d931bba35..2b1470bac178 100644 --- a/net/mac80211/Makefile +++ b/net/mac80211/Makefile @@ -9,7 +9,6 @@ mac80211-y := \ scan.o offchannel.o \ ht.o agg-tx.o agg-rx.o \ ibss.o \ - work.o \ iface.o \ rate.o \ michael.o \ diff --git a/net/mac80211/agg-rx.c b/net/mac80211/agg-rx.c index c649188314cc..32ef11d69798 100644 --- a/net/mac80211/agg-rx.c +++ b/net/mac80211/agg-rx.c @@ -74,18 +74,15 @@ void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid, RCU_INIT_POINTER(sta->ampdu_mlme.tid_rx[tid], NULL); -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG - "Rx BA session stop requested for %pM tid %u %s reason: %d\n", - sta->sta.addr, tid, - initiator == WLAN_BACK_RECIPIENT ? "recipient" : "inititator", - (int)reason); -#endif /* CONFIG_MAC80211_HT_DEBUG */ + ht_vdbg("Rx BA session stop requested for %pM tid %u %s reason: %d\n", + sta->sta.addr, tid, + initiator == WLAN_BACK_RECIPIENT ? "recipient" : "inititator", + (int)reason); if (drv_ampdu_action(local, sta->sdata, IEEE80211_AMPDU_RX_STOP, &sta->sta, tid, NULL, 0)) - printk(KERN_DEBUG "HW problem - can not stop rx " - "aggregation for tid %d\n", tid); + pr_debug("HW problem - can not stop rx aggregation for tid %d\n", + tid); /* check if this is a self generated aggregation halt */ if (initiator == WLAN_BACK_RECIPIENT && tx) @@ -160,9 +157,8 @@ static void sta_rx_agg_session_timer_expired(unsigned long data) } rcu_read_unlock(); -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "rx session timer expired on tid %d\n", (u16)*ptid); -#endif + ht_vdbg("rx session timer expired on tid %d\n", (u16)*ptid); + set_bit(*ptid, sta->ampdu_mlme.tid_rx_timer_expired); ieee80211_queue_work(&sta->local->hw, &sta->ampdu_mlme.work); } @@ -249,10 +245,7 @@ void ieee80211_process_addba_request(struct ieee80211_local *local, status = WLAN_STATUS_REQUEST_DECLINED; if (test_sta_flag(sta, WLAN_STA_BLOCK_BA)) { -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "Suspend in progress. " - "Denying ADDBA request\n"); -#endif + ht_vdbg("Suspend in progress - Denying ADDBA request\n"); goto end_no_lock; } @@ -324,10 +317,7 @@ void ieee80211_process_addba_request(struct ieee80211_local *local, ret = drv_ampdu_action(local, sta->sdata, IEEE80211_AMPDU_RX_START, &sta->sta, tid, &start_seq_num, 0); -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "Rx A-MPDU request on tid %d result %d\n", tid, ret); -#endif /* CONFIG_MAC80211_HT_DEBUG */ - + ht_vdbg("Rx A-MPDU request on tid %d result %d\n", tid, ret); if (ret) { kfree(tid_agg_rx->reorder_buf); kfree(tid_agg_rx->reorder_time); diff --git a/net/mac80211/agg-tx.c b/net/mac80211/agg-tx.c index 7cf07158805c..da07f01cfe4d 100644 --- a/net/mac80211/agg-tx.c +++ b/net/mac80211/agg-tx.c @@ -184,10 +184,8 @@ int ___ieee80211_stop_tx_ba_session(struct sta_info *sta, u16 tid, spin_unlock_bh(&sta->lock); -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "Tx BA session stop requested for %pM tid %u\n", - sta->sta.addr, tid); -#endif /* CONFIG_MAC80211_HT_DEBUG */ + ht_vdbg("Tx BA session stop requested for %pM tid %u\n", + sta->sta.addr, tid); del_timer_sync(&tid_tx->addba_resp_timer); del_timer_sync(&tid_tx->session_timer); @@ -253,17 +251,12 @@ static void sta_addba_resp_timer_expired(unsigned long data) if (!tid_tx || test_bit(HT_AGG_STATE_RESPONSE_RECEIVED, &tid_tx->state)) { rcu_read_unlock(); -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "timer expired on tid %d but we are not " - "(or no longer) expecting addBA response there\n", + ht_vdbg("timer expired on tid %d but we are not (or no longer) expecting addBA response there\n", tid); -#endif return; } -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "addBA response timer expired on tid %d\n", tid); -#endif + ht_vdbg("addBA response timer expired on tid %d\n", tid); ieee80211_stop_tx_ba_session(&sta->sta, tid); rcu_read_unlock(); @@ -372,10 +365,7 @@ void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid) ret = drv_ampdu_action(local, sdata, IEEE80211_AMPDU_TX_START, &sta->sta, tid, &start_seq_num, 0); if (ret) { -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "BA request denied - HW unavailable for" - " tid %d\n", tid); -#endif + ht_vdbg("BA request denied - HW unavailable for tid %d\n", tid); spin_lock_bh(&sta->lock); ieee80211_agg_splice_packets(sdata, tid_tx, tid); ieee80211_assign_tid_tx(sta, tid, NULL); @@ -388,9 +378,7 @@ void ieee80211_tx_ba_session_handle_start(struct sta_info *sta, int tid) /* activate the timer for the recipient's addBA response */ mod_timer(&tid_tx->addba_resp_timer, jiffies + ADDBA_RESP_INTERVAL); -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "activated addBA response timer on tid %d\n", tid); -#endif + ht_vdbg("activated addBA response timer on tid %d\n", tid); spin_lock_bh(&sta->lock); sta->ampdu_mlme.last_addba_req_time[tid] = jiffies; @@ -437,9 +425,7 @@ static void sta_tx_agg_session_timer_expired(unsigned long data) rcu_read_unlock(); -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "tx session timer expired on tid %d\n", (u16)*ptid); -#endif + ht_vdbg("tx session timer expired on tid %d\n", (u16)*ptid); ieee80211_stop_tx_ba_session(&sta->sta, *ptid); } @@ -463,10 +449,8 @@ int ieee80211_start_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid, (local->hw.flags & IEEE80211_HW_TX_AMPDU_SETUP_IN_HW)) return -EINVAL; -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "Open BA session requested for %pM tid %u\n", - pubsta->addr, tid); -#endif /* CONFIG_MAC80211_HT_DEBUG */ + ht_vdbg("Open BA session requested for %pM tid %u\n", + pubsta->addr, tid); if (sdata->vif.type != NL80211_IFTYPE_STATION && sdata->vif.type != NL80211_IFTYPE_MESH_POINT && @@ -476,10 +460,7 @@ int ieee80211_start_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid, return -EINVAL; if (test_sta_flag(sta, WLAN_STA_BLOCK_BA)) { -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "BA sessions blocked. " - "Denying BA session request\n"); -#endif + ht_vdbg("BA sessions blocked - Denying BA session request\n"); return -EINVAL; } @@ -497,10 +478,8 @@ int ieee80211_start_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid, */ if (sta->sdata->vif.type == NL80211_IFTYPE_ADHOC && !sta->sta.ht_cap.ht_supported) { -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "BA request denied - IBSS STA %pM" - "does not advertise HT support\n", pubsta->addr); -#endif /* CONFIG_MAC80211_HT_DEBUG */ + ht_vdbg("BA request denied - IBSS STA %pM does not advertise HT support\n", + pubsta->addr); return -EINVAL; } @@ -520,12 +499,8 @@ int ieee80211_start_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid, if (sta->ampdu_mlme.addba_req_num[tid] > HT_AGG_BURST_RETRIES && time_before(jiffies, sta->ampdu_mlme.last_addba_req_time[tid] + HT_AGG_RETRIES_PERIOD)) { -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "BA request denied - " - "waiting a grace period after %d failed requests " - "on tid %u\n", - sta->ampdu_mlme.addba_req_num[tid], tid); -#endif /* CONFIG_MAC80211_HT_DEBUG */ + ht_vdbg("BA request denied - waiting a grace period after %d failed requests on tid %u\n", + sta->ampdu_mlme.addba_req_num[tid], tid); ret = -EBUSY; goto err_unlock_sta; } @@ -533,10 +508,8 @@ int ieee80211_start_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid, tid_tx = rcu_dereference_protected_tid_tx(sta, tid); /* check if the TID is not in aggregation flow already */ if (tid_tx || sta->ampdu_mlme.tid_start_tx[tid]) { -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "BA request denied - session is not " - "idle on tid %u\n", tid); -#endif /* CONFIG_MAC80211_HT_DEBUG */ + ht_vdbg("BA request denied - session is not idle on tid %u\n", + tid); ret = -EAGAIN; goto err_unlock_sta; } @@ -591,9 +564,7 @@ static void ieee80211_agg_tx_operational(struct ieee80211_local *local, tid_tx = rcu_dereference_protected_tid_tx(sta, tid); -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "Aggregation is on for tid %d\n", tid); -#endif + ht_vdbg("Aggregation is on for tid %d\n", tid); drv_ampdu_action(local, sta->sdata, IEEE80211_AMPDU_TX_OPERATIONAL, @@ -627,10 +598,7 @@ void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid) trace_api_start_tx_ba_cb(sdata, ra, tid); if (tid >= STA_TID_NUM) { -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "Bad TID value: tid = %d (>= %d)\n", - tid, STA_TID_NUM); -#endif + ht_vdbg("Bad TID value: tid = %d (>= %d)\n", tid, STA_TID_NUM); return; } @@ -638,9 +606,7 @@ void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid) sta = sta_info_get_bss(sdata, ra); if (!sta) { mutex_unlock(&local->sta_mtx); -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "Could not find station: %pM\n", ra); -#endif + ht_vdbg("Could not find station: %pM\n", ra); return; } @@ -648,9 +614,7 @@ void ieee80211_start_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u16 tid) tid_tx = rcu_dereference_protected_tid_tx(sta, tid); if (WARN_ON(!tid_tx)) { -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "addBA was not requested!\n"); -#endif + ht_vdbg("addBA was not requested!\n"); goto unlock; } @@ -750,25 +714,17 @@ void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid) trace_api_stop_tx_ba_cb(sdata, ra, tid); if (tid >= STA_TID_NUM) { -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "Bad TID value: tid = %d (>= %d)\n", - tid, STA_TID_NUM); -#endif + ht_vdbg("Bad TID value: tid = %d (>= %d)\n", tid, STA_TID_NUM); return; } -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "Stopping Tx BA session for %pM tid %d\n", - ra, tid); -#endif /* CONFIG_MAC80211_HT_DEBUG */ + ht_vdbg("Stopping Tx BA session for %pM tid %d\n", ra, tid); mutex_lock(&local->sta_mtx); sta = sta_info_get_bss(sdata, ra); if (!sta) { -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "Could not find station: %pM\n", ra); -#endif + ht_vdbg("Could not find station: %pM\n", ra); goto unlock; } @@ -777,9 +733,7 @@ void ieee80211_stop_tx_ba_cb(struct ieee80211_vif *vif, u8 *ra, u8 tid) tid_tx = rcu_dereference_protected_tid_tx(sta, tid); if (!tid_tx || !test_bit(HT_AGG_STATE_STOPPING, &tid_tx->state)) { -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "unexpected callback to A-MPDU stop\n"); -#endif + ht_vdbg("unexpected callback to A-MPDU stop\n"); goto unlock_sta; } @@ -855,17 +809,13 @@ void ieee80211_process_addba_resp(struct ieee80211_local *local, goto out; if (mgmt->u.action.u.addba_resp.dialog_token != tid_tx->dialog_token) { -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "wrong addBA response token, tid %d\n", tid); -#endif + ht_vdbg("wrong addBA response token, tid %d\n", tid); goto out; } del_timer_sync(&tid_tx->addba_resp_timer); -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG "switched off addBA timer for tid %d\n", tid); -#endif + ht_vdbg("switched off addBA timer for tid %d\n", tid); /* * addba_resp_timer may have fired before we got here, and @@ -874,11 +824,8 @@ void ieee80211_process_addba_resp(struct ieee80211_local *local, */ if (test_bit(HT_AGG_STATE_WANT_STOP, &tid_tx->state) || test_bit(HT_AGG_STATE_STOPPING, &tid_tx->state)) { -#ifdef CONFIG_MAC80211_HT_DEBUG - printk(KERN_DEBUG - "got addBA resp for tid %d but we already gave up\n", - tid); -#endif + ht_vdbg("got addBA resp for tid %d but we already gave up\n", + tid); goto out; } diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index e9cecca5c44d..498c94e34427 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -674,6 +674,48 @@ static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, return ret; } +static int ieee80211_set_channel(struct wiphy *wiphy, + struct net_device *netdev, + struct ieee80211_channel *chan, + enum nl80211_channel_type channel_type) +{ + struct ieee80211_local *local = wiphy_priv(wiphy); + struct ieee80211_sub_if_data *sdata = NULL; + + if (netdev) + sdata = IEEE80211_DEV_TO_SUB_IF(netdev); + + switch (ieee80211_get_channel_mode(local, NULL)) { + case CHAN_MODE_HOPPING: + return -EBUSY; + case CHAN_MODE_FIXED: + if (local->oper_channel != chan) + return -EBUSY; + if (!sdata && local->_oper_channel_type == channel_type) + return 0; + break; + case CHAN_MODE_UNDEFINED: + break; + } + + if (!ieee80211_set_channel_type(local, sdata, channel_type)) + return -EBUSY; + + local->oper_channel = chan; + + /* auto-detects changes */ + ieee80211_hw_config(local, 0); + + return 0; +} + +static int ieee80211_set_monitor_channel(struct wiphy *wiphy, + struct ieee80211_channel *chan, + enum nl80211_channel_type channel_type) +{ + return ieee80211_set_channel(wiphy, NULL, chan, channel_type); +} + static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, const u8 *resp, size_t resp_len) { @@ -788,6 +830,11 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, if (old) return -EALREADY; + err = ieee80211_set_channel(wiphy, dev, params->channel, + params->channel_type); + if (err) + return err; + /* * Apply control port protocol, this allows us to * not encrypt dynamic WEP control frames. @@ -1558,6 +1605,12 @@ static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, err = copy_mesh_setup(ifmsh, setup); if (err) return err; + + err = ieee80211_set_channel(wiphy, dev, setup->channel, + setup->channel_type); + if (err) + return err; + ieee80211_start_mesh(sdata); return 0; @@ -1677,55 +1730,6 @@ static int ieee80211_set_txq_params(struct wiphy *wiphy, return 0; } -static int ieee80211_set_channel(struct wiphy *wiphy, - struct net_device *netdev, - struct ieee80211_channel *chan, - enum nl80211_channel_type channel_type) -{ - struct ieee80211_local *local = wiphy_priv(wiphy); - struct ieee80211_sub_if_data *sdata = NULL; - struct ieee80211_channel *old_oper; - enum nl80211_channel_type old_oper_type; - enum nl80211_channel_type old_vif_oper_type= NL80211_CHAN_NO_HT; - - if (netdev) - sdata = IEEE80211_DEV_TO_SUB_IF(netdev); - - switch (ieee80211_get_channel_mode(local, NULL)) { - case CHAN_MODE_HOPPING: - return -EBUSY; - case CHAN_MODE_FIXED: - if (local->oper_channel != chan) - return -EBUSY; - if (!sdata && local->_oper_channel_type == channel_type) - return 0; - break; - case CHAN_MODE_UNDEFINED: - break; - } - - if (sdata) - old_vif_oper_type = sdata->vif.bss_conf.channel_type; - old_oper_type = local->_oper_channel_type; - - if (!ieee80211_set_channel_type(local, sdata, channel_type)) - return -EBUSY; - - old_oper = local->oper_channel; - local->oper_channel = chan; - - /* Update driver if changes were actually made. */ - if ((old_oper != local->oper_channel) || - (old_oper_type != local->_oper_channel_type)) - ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL); - - if (sdata && sdata->vif.type != NL80211_IFTYPE_MONITOR && - old_vif_oper_type != sdata->vif.bss_conf.channel_type) - ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT); - - return 0; -} - #ifdef CONFIG_PM static int ieee80211_suspend(struct wiphy *wiphy, struct cfg80211_wowlan *wowlan) @@ -2108,35 +2112,171 @@ static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, return 0; } -static int ieee80211_remain_on_channel_hw(struct ieee80211_local *local, - struct net_device *dev, - struct ieee80211_channel *chan, - enum nl80211_channel_type chantype, - unsigned int duration, u64 *cookie) +static int ieee80211_start_roc_work(struct ieee80211_local *local, + struct ieee80211_sub_if_data *sdata, + struct ieee80211_channel *channel, + enum nl80211_channel_type channel_type, + unsigned int duration, u64 *cookie, + struct sk_buff *txskb) { + struct ieee80211_roc_work *roc, *tmp; + bool queued = false; int ret; - u32 random_cookie; lockdep_assert_held(&local->mtx); - if (local->hw_roc_cookie) - return -EBUSY; - /* must be nonzero */ - random_cookie = random32() | 1; - - *cookie = random_cookie; - local->hw_roc_dev = dev; - local->hw_roc_cookie = random_cookie; - local->hw_roc_channel = chan; - local->hw_roc_channel_type = chantype; - local->hw_roc_duration = duration; - ret = drv_remain_on_channel(local, chan, chantype, duration); + roc = kzalloc(sizeof(*roc), GFP_KERNEL); + if (!roc) + return -ENOMEM; + + roc->chan = channel; + roc->chan_type = channel_type; + roc->duration = duration; + roc->req_duration = duration; + roc->frame = txskb; + roc->mgmt_tx_cookie = (unsigned long)txskb; + roc->sdata = sdata; + INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work); + INIT_LIST_HEAD(&roc->dependents); + + /* if there's one pending or we're scanning, queue this one */ + if (!list_empty(&local->roc_list) || local->scanning) + goto out_check_combine; + + /* if not HW assist, just queue & schedule work */ + if (!local->ops->remain_on_channel) { + ieee80211_queue_delayed_work(&local->hw, &roc->work, 0); + goto out_queue; + } + + /* otherwise actually kick it off here (for error handling) */ + + /* + * If the duration is zero, then the driver + * wouldn't actually do anything. Set it to + * 10 for now. + * + * TODO: cancel the off-channel operation + * when we get the SKB's TX status and + * the wait time was zero before. + */ + if (!duration) + duration = 10; + + ret = drv_remain_on_channel(local, channel, channel_type, duration); if (ret) { - local->hw_roc_channel = NULL; - local->hw_roc_cookie = 0; + kfree(roc); + return ret; } - return ret; + roc->started = true; + goto out_queue; + + out_check_combine: + list_for_each_entry(tmp, &local->roc_list, list) { + if (tmp->chan != channel || tmp->chan_type != channel_type) + continue; + + /* + * Extend this ROC if possible: + * + * If it hasn't started yet, just increase the duration + * and add the new one to the list of dependents. + */ + if (!tmp->started) { + list_add_tail(&roc->list, &tmp->dependents); + tmp->duration = max(tmp->duration, roc->duration); + queued = true; + break; + } + + /* If it has already started, it's more difficult ... */ + if (local->ops->remain_on_channel) { + unsigned long j = jiffies; + + /* + * In the offloaded ROC case, if it hasn't begun, add + * this new one to the dependent list to be handled + * when the the master one begins. If it has begun, + * check that there's still a minimum time left and + * if so, start this one, transmitting the frame, but + * add it to the list directly after this one with a + * a reduced time so we'll ask the driver to execute + * it right after finishing the previous one, in the + * hope that it'll also be executed right afterwards, + * effectively extending the old one. + * If there's no minimum time left, just add it to the + * normal list. + */ + if (!tmp->hw_begun) { + list_add_tail(&roc->list, &tmp->dependents); + queued = true; + break; + } + + if (time_before(j + IEEE80211_ROC_MIN_LEFT, + tmp->hw_start_time + + msecs_to_jiffies(tmp->duration))) { + int new_dur; + + ieee80211_handle_roc_started(roc); + + new_dur = roc->duration - + jiffies_to_msecs(tmp->hw_start_time + + msecs_to_jiffies( + tmp->duration) - + j); + + if (new_dur > 0) { + /* add right after tmp */ + list_add(&roc->list, &tmp->list); + } else { + list_add_tail(&roc->list, + &tmp->dependents); + } + queued = true; + } + } else if (del_timer_sync(&tmp->work.timer)) { + unsigned long new_end; + + /* + * In the software ROC case, cancel the timer, if + * that fails then the finish work is already + * queued/pending and thus we queue the new ROC + * normally, if that succeeds then we can extend + * the timer duration and TX the frame (if any.) + */ + + list_add_tail(&roc->list, &tmp->dependents); + queued = true; + + new_end = jiffies + msecs_to_jiffies(roc->duration); + + /* ok, it was started & we canceled timer */ + if (time_after(new_end, tmp->work.timer.expires)) + mod_timer(&tmp->work.timer, new_end); + else + add_timer(&tmp->work.timer); + + ieee80211_handle_roc_started(roc); + } + break; + } + + out_queue: + if (!queued) + list_add_tail(&roc->list, &local->roc_list); + + /* + * cookie is either the roc (for normal roc) + * or the SKB (for mgmt TX) + */ + if (txskb) + *cookie = (unsigned long)txskb; + else + *cookie = (unsigned long)roc; + + return 0; } static int ieee80211_remain_on_channel(struct wiphy *wiphy, @@ -2148,42 +2288,64 @@ static int ieee80211_remain_on_channel(struct wiphy *wiphy, { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct ieee80211_local *local = sdata->local; + int ret; - if (local->ops->remain_on_channel) { - int ret; - - mutex_lock(&local->mtx); - ret = ieee80211_remain_on_channel_hw(local, dev, - chan, channel_type, - duration, cookie); - local->hw_roc_for_tx = false; - mutex_unlock(&local->mtx); - - return ret; - } + mutex_lock(&local->mtx); + ret = ieee80211_start_roc_work(local, sdata, chan, channel_type, + duration, cookie, NULL); + mutex_unlock(&local->mtx); - return ieee80211_wk_remain_on_channel(sdata, chan, channel_type, - duration, cookie); + return ret; } -static int ieee80211_cancel_remain_on_channel_hw(struct ieee80211_local *local, - u64 cookie) +static int ieee80211_cancel_roc(struct ieee80211_local *local, + u64 cookie, bool mgmt_tx) { + struct ieee80211_roc_work *roc, *tmp, *found = NULL; int ret; - lockdep_assert_held(&local->mtx); + mutex_lock(&local->mtx); + list_for_each_entry_safe(roc, tmp, &local->roc_list, list) { + if (!mgmt_tx && (unsigned long)roc != cookie) + continue; + else if (mgmt_tx && roc->mgmt_tx_cookie != cookie) + continue; + + found = roc; + break; + } - if (local->hw_roc_cookie != cookie) + if (!found) { + mutex_unlock(&local->mtx); return -ENOENT; + } - ret = drv_cancel_remain_on_channel(local); - if (ret) - return ret; + if (local->ops->remain_on_channel) { + if (found->started) { + ret = drv_cancel_remain_on_channel(local); + if (WARN_ON_ONCE(ret)) { + mutex_unlock(&local->mtx); + return ret; + } + } - local->hw_roc_cookie = 0; - local->hw_roc_channel = NULL; + list_del(&found->list); - ieee80211_recalc_idle(local); + ieee80211_run_deferred_scan(local); + ieee80211_start_next_roc(local); + mutex_unlock(&local->mtx); + + ieee80211_roc_notify_destroy(found); + } else { + /* work may be pending so use it all the time */ + found->abort = true; + ieee80211_queue_delayed_work(&local->hw, &found->work, 0); + + mutex_unlock(&local->mtx); + + /* work will clean up etc */ + flush_delayed_work(&found->work); + } return 0; } @@ -2195,39 +2357,7 @@ static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy, struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct ieee80211_local *local = sdata->local; - if (local->ops->cancel_remain_on_channel) { - int ret; - - mutex_lock(&local->mtx); - ret = ieee80211_cancel_remain_on_channel_hw(local, cookie); - mutex_unlock(&local->mtx); - - return ret; - } - - return ieee80211_wk_cancel_remain_on_channel(sdata, cookie); -} - -static enum work_done_result -ieee80211_offchan_tx_done(struct ieee80211_work *wk, struct sk_buff *skb) -{ - /* - * Use the data embedded in the work struct for reporting - * here so if the driver mangled the SKB before dropping - * it (which is the only way we really should get here) - * then we don't report mangled data. - * - * If there was no wait time, then by the time we get here - * the driver will likely not have reported the status yet, - * so in that case userspace will have to deal with it. - */ - - if (wk->offchan_tx.wait && !wk->offchan_tx.status) - cfg80211_mgmt_tx_status(wk->sdata->dev, - (unsigned long) wk->offchan_tx.frame, - wk->data, wk->data_len, false, GFP_KERNEL); - - return WORK_DONE_DESTROY; + return ieee80211_cancel_roc(local, cookie, false); } static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev, @@ -2241,10 +2371,10 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev, struct ieee80211_local *local = sdata->local; struct sk_buff *skb; struct sta_info *sta; - struct ieee80211_work *wk; const struct ieee80211_mgmt *mgmt = (void *)buf; + bool need_offchan = false; u32 flags; - bool is_offchan = false; + int ret; if (dont_wait_for_ack) flags = IEEE80211_TX_CTL_NO_ACK; @@ -2252,33 +2382,28 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev, flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX | IEEE80211_TX_CTL_REQ_TX_STATUS; - /* Check that we are on the requested channel for transmission */ - if (chan != local->tmp_channel && - chan != local->oper_channel) - is_offchan = true; - if (channel_type_valid && - (channel_type != local->tmp_channel_type && - channel_type != local->_oper_channel_type)) - is_offchan = true; - - if (chan == local->hw_roc_channel) { - /* TODO: check channel type? */ - is_offchan = false; - flags |= IEEE80211_TX_CTL_TX_OFFCHAN; - } - if (no_cck) flags |= IEEE80211_TX_CTL_NO_CCK_RATE; - if (is_offchan && !offchan) - return -EBUSY; - switch (sdata->vif.type) { case NL80211_IFTYPE_ADHOC: + if (!sdata->vif.bss_conf.ibss_joined) + need_offchan = true; + /* fall through */ +#ifdef CONFIG_MAC80211_MESH + case NL80211_IFTYPE_MESH_POINT: + if (ieee80211_vif_is_mesh(&sdata->vif) && + !sdata->u.mesh.mesh_id_len) + need_offchan = true; + /* fall through */ +#endif case NL80211_IFTYPE_AP: case NL80211_IFTYPE_AP_VLAN: case NL80211_IFTYPE_P2P_GO: - case NL80211_IFTYPE_MESH_POINT: + if (sdata->vif.type != NL80211_IFTYPE_ADHOC && + !ieee80211_vif_is_mesh(&sdata->vif) && + !rcu_access_pointer(sdata->bss->beacon)) + need_offchan = true; if (!ieee80211_is_action(mgmt->frame_control) || mgmt->u.action.category == WLAN_CATEGORY_PUBLIC) break; @@ -2290,103 +2415,60 @@ static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev, break; case NL80211_IFTYPE_STATION: case NL80211_IFTYPE_P2P_CLIENT: + if (!sdata->u.mgd.associated) + need_offchan = true; break; default: return -EOPNOTSUPP; } + mutex_lock(&local->mtx); + + /* Check if the operating channel is the requested channel */ + if (!need_offchan) { + need_offchan = chan != local->oper_channel; + if (channel_type_valid && + channel_type != local->_oper_channel_type) + need_offchan = true; + } + + if (need_offchan && !offchan) { + ret = -EBUSY; + goto out_unlock; + } + skb = dev_alloc_skb(local->hw.extra_tx_headroom + len); - if (!skb) - return -ENOMEM; + if (!skb) { + ret = -ENOMEM; + goto out_unlock; + } skb_reserve(skb, local->hw.extra_tx_headroom); memcpy(skb_put(skb, len), buf, len); IEEE80211_SKB_CB(skb)->flags = flags; - if (flags & IEEE80211_TX_CTL_TX_OFFCHAN) - IEEE80211_SKB_CB(skb)->hw_queue = - local->hw.offchannel_tx_hw_queue; - skb->dev = sdata->dev; - *cookie = (unsigned long) skb; - - if (is_offchan && local->ops->remain_on_channel) { - unsigned int duration; - int ret; - - mutex_lock(&local->mtx); - /* - * If the duration is zero, then the driver - * wouldn't actually do anything. Set it to - * 100 for now. - * - * TODO: cancel the off-channel operation - * when we get the SKB's TX status and - * the wait time was zero before. - */ - duration = 100; - if (wait) - duration = wait; - ret = ieee80211_remain_on_channel_hw(local, dev, chan, - channel_type, - duration, cookie); - if (ret) { - kfree_skb(skb); - mutex_unlock(&local->mtx); - return ret; - } - - local->hw_roc_for_tx = true; - local->hw_roc_duration = wait; - - /* - * queue up frame for transmission after - * ieee80211_ready_on_channel call - */ + if (!need_offchan) { + ieee80211_tx_skb(sdata, skb); + ret = 0; + goto out_unlock; + } - /* modify cookie to prevent API mismatches */ - *cookie ^= 2; - IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN; + IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN; + if (local->hw.flags & IEEE80211_HW_QUEUE_CONTROL) IEEE80211_SKB_CB(skb)->hw_queue = local->hw.offchannel_tx_hw_queue; - local->hw_roc_skb = skb; - local->hw_roc_skb_for_status = skb; - mutex_unlock(&local->mtx); - - return 0; - } - - /* - * Can transmit right away if the channel was the - * right one and there's no wait involved... If a - * wait is involved, we might otherwise not be on - * the right channel for long enough! - */ - if (!is_offchan && !wait && !sdata->vif.bss_conf.idle) { - ieee80211_tx_skb(sdata, skb); - return 0; - } - wk = kzalloc(sizeof(*wk) + len, GFP_KERNEL); - if (!wk) { + /* This will handle all kinds of coalescing and immediate TX */ + ret = ieee80211_start_roc_work(local, sdata, chan, channel_type, + wait, cookie, skb); + if (ret) kfree_skb(skb); - return -ENOMEM; - } - - wk->type = IEEE80211_WORK_OFFCHANNEL_TX; - wk->chan = chan; - wk->chan_type = channel_type; - wk->sdata = sdata; - wk->done = ieee80211_offchan_tx_done; - wk->offchan_tx.frame = skb; - wk->offchan_tx.wait = wait; - wk->data_len = len; - memcpy(wk->data, buf, len); - - ieee80211_add_work(wk); - return 0; + out_unlock: + mutex_unlock(&local->mtx); + return ret; } static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy, @@ -2395,45 +2477,8 @@ static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy, { struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); struct ieee80211_local *local = sdata->local; - struct ieee80211_work *wk; - int ret = -ENOENT; - - mutex_lock(&local->mtx); - - if (local->ops->cancel_remain_on_channel) { - cookie ^= 2; - ret = ieee80211_cancel_remain_on_channel_hw(local, cookie); - - if (ret == 0) { - kfree_skb(local->hw_roc_skb); - local->hw_roc_skb = NULL; - local->hw_roc_skb_for_status = NULL; - } - - mutex_unlock(&local->mtx); - return ret; - } - - list_for_each_entry(wk, &local->work_list, list) { - if (wk->sdata != sdata) - continue; - - if (wk->type != IEEE80211_WORK_OFFCHANNEL_TX) - continue; - - if (cookie != (unsigned long) wk->offchan_tx.frame) - continue; - - wk->timeout = jiffies; - - ieee80211_queue_work(&local->hw, &local->work_work); - ret = 0; - break; - } - mutex_unlock(&local->mtx); - - return ret; + return ieee80211_cancel_roc(local, cookie, true); } static void ieee80211_mgmt_frame_register(struct wiphy *wiphy, @@ -2677,7 +2722,7 @@ static int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev, return -EINVAL; #ifdef CONFIG_MAC80211_VERBOSE_TDLS_DEBUG - printk(KERN_DEBUG "TDLS mgmt action %d peer %pM\n", action_code, peer); + pr_debug("TDLS mgmt action %d peer %pM\n", action_code, peer); #endif skb = dev_alloc_skb(local->hw.extra_tx_headroom + @@ -2788,7 +2833,7 @@ static int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev, return -EINVAL; #ifdef CONFIG_MAC80211_VERBOSE_TDLS_DEBUG - printk(KERN_DEBUG "TDLS oper %d peer %pM\n", oper, peer); + pr_debug("TDLS oper %d peer %pM\n", oper, peer); #endif switch (oper) { @@ -2933,7 +2978,7 @@ struct cfg80211_ops mac80211_config_ops = { #endif .change_bss = ieee80211_change_bss, .set_txq_params = ieee80211_set_txq_params, - .set_channel = ieee80211_set_channel, + .set_monitor_channel = ieee80211_set_monitor_channel, .suspend = ieee80211_suspend, .resume = ieee80211_resume, .scan = ieee80211_scan, diff --git a/net/mac80211/chan.c b/net/mac80211/chan.c index c76cf7230c7d..f0f87e5a1d35 100644 --- a/net/mac80211/chan.c +++ b/net/mac80211/chan.c @@ -41,6 +41,10 @@ __ieee80211_get_channel_mode(struct ieee80211_local *local, if (!sdata->u.ap.beacon) continue; break; + case NL80211_IFTYPE_MESH_POINT: + if (!sdata->wdev.mesh_id_len) + continue; + break; default: break; } diff --git a/net/mac80211/debugfs_netdev.c b/net/mac80211/debugfs_netdev.c index 7ed433c66d68..d4272ff43f71 100644 --- a/net/mac80211/debugfs_netdev.c +++ b/net/mac80211/debugfs_netdev.c @@ -607,6 +607,7 @@ static void add_mesh_config(struct ieee80211_sub_if_data *sdata) MESHPARAMS_ADD(min_discovery_timeout); MESHPARAMS_ADD(dot11MeshHWMPRootMode); MESHPARAMS_ADD(dot11MeshHWMPRannInterval); + MESHPARAMS_ADD(dot11MeshForwarding); MESHPARAMS_ADD(dot11MeshGateAnnouncementProtocol); MESHPARAMS_ADD(rssi_threshold); MESHPARAMS_ADD(ht_opmode); @@ -685,6 +686,6 @@ void ieee80211_debugfs_rename_netdev(struct ieee80211_sub_if_data *sdata) sprintf(buf, "netdev:%s", sdata->name); if (!debugfs_rename(dir->d_parent, dir, dir->d_parent, buf)) - printk(KERN_ERR "mac80211: debugfs: failed to rename debugfs " + pr_err("mac80211: debugfs: failed to rename debugfs " "dir to %s\n", buf); } diff --git a/net/mac80211/ibss.c b/net/mac80211/ibss.c index 33d9d0c3e3d0..725cb4be229d 100644 --- a/net/mac80211/ibss.c +++ b/net/mac80211/ibss.c @@ -82,8 +82,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata, local->oper_channel = chan; channel_type = ifibss->channel_type; - if (channel_type > NL80211_CHAN_HT20 && - !cfg80211_can_beacon_sec_chan(local->hw.wiphy, chan, channel_type)) + if (!cfg80211_can_beacon_sec_chan(local->hw.wiphy, chan, channel_type)) channel_type = NL80211_CHAN_HT20; if (!ieee80211_set_channel_type(local, sdata, channel_type)) { /* can only fail due to HT40+/- mismatch */ @@ -281,11 +280,8 @@ static struct sta_info *ieee80211_ibss_finish_sta(struct sta_info *sta, if (sta_info_insert_rcu(sta)) return sta_info_get(sdata, addr); if (auth) { -#ifdef CONFIG_MAC80211_IBSS_DEBUG - printk(KERN_DEBUG "TX Auth SA=%pM DA=%pM BSSID=%pM" - "(auth_transaction=1)\n", sdata->vif.addr, - sdata->u.ibss.bssid, addr); -#endif + ibss_vdbg("TX Auth SA=%pM DA=%pM BSSID=%pM (auth_transaction=1)\n", + sdata->vif.addr, sdata->u.ibss.bssid, addr); ieee80211_send_auth(sdata, 1, WLAN_AUTH_OPEN, NULL, 0, addr, sdata->u.ibss.bssid, NULL, 0, 0); } @@ -355,11 +351,9 @@ static void ieee80211_rx_mgmt_auth_ibss(struct ieee80211_sub_if_data *sdata, if (auth_alg != WLAN_AUTH_OPEN || auth_transaction != 1) return; -#ifdef CONFIG_MAC80211_IBSS_DEBUG - printk(KERN_DEBUG "%s: RX Auth SA=%pM DA=%pM BSSID=%pM." - "(auth_transaction=%d)\n", - sdata->name, mgmt->sa, mgmt->da, mgmt->bssid, auth_transaction); -#endif + ibss_vdbg("%s: RX Auth SA=%pM DA=%pM BSSID=%pM (auth_transaction=%d)\n", + sdata->name, mgmt->sa, mgmt->da, mgmt->bssid, + auth_transaction); sta_info_destroy_addr(sdata, mgmt->sa); ieee80211_ibss_add_sta(sdata, mgmt->bssid, mgmt->sa, 0, false); rcu_read_unlock(); @@ -422,15 +416,10 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata, ieee80211_mandatory_rates(local, band); if (sta->sta.supp_rates[band] != prev_rates) { -#ifdef CONFIG_MAC80211_IBSS_DEBUG - printk(KERN_DEBUG - "%s: updated supp_rates set " - "for %pM based on beacon" - "/probe_resp (0x%x -> 0x%x)\n", - sdata->name, sta->sta.addr, - prev_rates, - sta->sta.supp_rates[band]); -#endif + ibss_vdbg("%s: updated supp_rates set for %pM based on beacon/probe_resp (0x%x -> 0x%x)\n", + sdata->name, sta->sta.addr, + prev_rates, + sta->sta.supp_rates[band]); rates_updated = true; } } else { @@ -545,22 +534,16 @@ static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata, rx_timestamp = drv_get_tsf(local, sdata); } -#ifdef CONFIG_MAC80211_IBSS_DEBUG - printk(KERN_DEBUG "RX beacon SA=%pM BSSID=" - "%pM TSF=0x%llx BCN=0x%llx diff=%lld @%lu\n", - mgmt->sa, mgmt->bssid, - (unsigned long long)rx_timestamp, - (unsigned long long)beacon_timestamp, - (unsigned long long)(rx_timestamp - beacon_timestamp), - jiffies); -#endif + ibss_vdbg("RX beacon SA=%pM BSSID=%pM TSF=0x%llx BCN=0x%llx diff=%lld @%lu\n", + mgmt->sa, mgmt->bssid, + (unsigned long long)rx_timestamp, + (unsigned long long)beacon_timestamp, + (unsigned long long)(rx_timestamp - beacon_timestamp), + jiffies); if (beacon_timestamp > rx_timestamp) { -#ifdef CONFIG_MAC80211_IBSS_DEBUG - printk(KERN_DEBUG "%s: beacon TSF higher than " - "local TSF - IBSS merge with BSSID %pM\n", - sdata->name, mgmt->bssid); -#endif + ibss_vdbg("%s: beacon TSF higher than local TSF - IBSS merge with BSSID %pM\n", + sdata->name, mgmt->bssid); ieee80211_sta_join_ibss(sdata, bss); supp_rates = ieee80211_sta_get_rates(local, elems, band, NULL); ieee80211_ibss_add_sta(sdata, mgmt->bssid, mgmt->sa, @@ -662,8 +645,8 @@ static void ieee80211_sta_merge_ibss(struct ieee80211_sub_if_data *sdata) if (ifibss->fixed_channel) return; - printk(KERN_DEBUG "%s: No active IBSS STAs - trying to scan for other " - "IBSS networks with same SSID (merge)\n", sdata->name); + pr_debug("%s: No active IBSS STAs - trying to scan for other IBSS networks with same SSID (merge)\n", + sdata->name); ieee80211_request_internal_scan(sdata, ifibss->ssid, ifibss->ssid_len, NULL); @@ -691,8 +674,8 @@ static void ieee80211_sta_create_ibss(struct ieee80211_sub_if_data *sdata) bssid[0] |= 0x02; } - printk(KERN_DEBUG "%s: Creating new IBSS network, BSSID %pM\n", - sdata->name, bssid); + pr_debug("%s: Creating new IBSS network, BSSID %pM\n", + sdata->name, bssid); capability = WLAN_CAPABILITY_IBSS; @@ -723,10 +706,8 @@ static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata) lockdep_assert_held(&ifibss->mtx); active_ibss = ieee80211_sta_active_ibss(sdata); -#ifdef CONFIG_MAC80211_IBSS_DEBUG - printk(KERN_DEBUG "%s: sta_find_ibss (active_ibss=%d)\n", - sdata->name, active_ibss); -#endif /* CONFIG_MAC80211_IBSS_DEBUG */ + ibss_vdbg("%s: sta_find_ibss (active_ibss=%d)\n", + sdata->name, active_ibss); if (active_ibss) return; @@ -749,29 +730,23 @@ static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata) struct ieee80211_bss *bss; bss = (void *)cbss->priv; -#ifdef CONFIG_MAC80211_IBSS_DEBUG - printk(KERN_DEBUG " sta_find_ibss: selected %pM current " - "%pM\n", cbss->bssid, ifibss->bssid); -#endif /* CONFIG_MAC80211_IBSS_DEBUG */ - - printk(KERN_DEBUG "%s: Selected IBSS BSSID %pM" - " based on configured SSID\n", - sdata->name, cbss->bssid); + ibss_vdbg(" sta_find_ibss: selected %pM current %pM\n", + cbss->bssid, ifibss->bssid); + pr_debug("%s: Selected IBSS BSSID %pM based on configured SSID\n", + sdata->name, cbss->bssid); ieee80211_sta_join_ibss(sdata, bss); ieee80211_rx_bss_put(local, bss); return; } -#ifdef CONFIG_MAC80211_IBSS_DEBUG - printk(KERN_DEBUG " did not try to join ibss\n"); -#endif /* CONFIG_MAC80211_IBSS_DEBUG */ + ibss_vdbg(" did not try to join ibss\n"); /* Selected IBSS not found in current scan results - try to scan */ if (time_after(jiffies, ifibss->last_scan_completed + IEEE80211_SCAN_INTERVAL)) { - printk(KERN_DEBUG "%s: Trigger new scan to find an IBSS to " - "join\n", sdata->name); + pr_debug("%s: Trigger new scan to find an IBSS to join\n", + sdata->name); ieee80211_request_internal_scan(sdata, ifibss->ssid, ifibss->ssid_len, @@ -785,9 +760,9 @@ static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata) ieee80211_sta_create_ibss(sdata); return; } - printk(KERN_DEBUG "%s: IBSS not allowed on" - " %d MHz\n", sdata->name, - local->hw.conf.channel->center_freq); + pr_debug("%s: IBSS not allowed on %d MHz\n", + sdata->name, + local->hw.conf.channel->center_freq); /* No IBSS found - decrease scan interval and continue * scanning. */ @@ -822,12 +797,9 @@ static void ieee80211_rx_mgmt_probe_req(struct ieee80211_sub_if_data *sdata, tx_last_beacon = drv_tx_last_beacon(local); -#ifdef CONFIG_MAC80211_IBSS_DEBUG - printk(KERN_DEBUG "%s: RX ProbeReq SA=%pM DA=%pM BSSID=%pM" - " (tx_last_beacon=%d)\n", - sdata->name, mgmt->sa, mgmt->da, - mgmt->bssid, tx_last_beacon); -#endif /* CONFIG_MAC80211_IBSS_DEBUG */ + ibss_vdbg("%s: RX ProbeReq SA=%pM DA=%pM BSSID=%pM (tx_last_beacon=%d)\n", + sdata->name, mgmt->sa, mgmt->da, + mgmt->bssid, tx_last_beacon); if (!tx_last_beacon && is_multicast_ether_addr(mgmt->da)) return; @@ -840,11 +812,8 @@ static void ieee80211_rx_mgmt_probe_req(struct ieee80211_sub_if_data *sdata, pos = mgmt->u.probe_req.variable; if (pos[0] != WLAN_EID_SSID || pos + 2 + pos[1] > end) { -#ifdef CONFIG_MAC80211_IBSS_DEBUG - printk(KERN_DEBUG "%s: Invalid SSID IE in ProbeReq " - "from %pM\n", - sdata->name, mgmt->sa); -#endif + ibss_vdbg("%s: Invalid SSID IE in ProbeReq from %pM\n", + sdata->name, mgmt->sa); return; } if (pos[1] != 0 && @@ -861,10 +830,7 @@ static void ieee80211_rx_mgmt_probe_req(struct ieee80211_sub_if_data *sdata, resp = (struct ieee80211_mgmt *) skb->data; memcpy(resp->da, mgmt->sa, ETH_ALEN); -#ifdef CONFIG_MAC80211_IBSS_DEBUG - printk(KERN_DEBUG "%s: Sending ProbeResp to %pM\n", - sdata->name, resp->da); -#endif /* CONFIG_MAC80211_IBSS_DEBUG */ + ibss_vdbg("%s: Sending ProbeResp to %pM\n", sdata->name, resp->da); IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT; ieee80211_tx_skb(sdata, skb); } diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 3f3cd50fff16..e6cbf5b68c89 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -317,55 +317,30 @@ struct mesh_preq_queue { u8 flags; }; -enum ieee80211_work_type { - IEEE80211_WORK_ABORT, - IEEE80211_WORK_REMAIN_ON_CHANNEL, - IEEE80211_WORK_OFFCHANNEL_TX, -}; - -/** - * enum work_done_result - indicates what to do after work was done - * - * @WORK_DONE_DESTROY: This work item is no longer needed, destroy. - * @WORK_DONE_REQUEUE: This work item was reset to be reused, and - * should be requeued. - */ -enum work_done_result { - WORK_DONE_DESTROY, - WORK_DONE_REQUEUE, -}; +#if HZ/100 == 0 +#define IEEE80211_ROC_MIN_LEFT 1 +#else +#define IEEE80211_ROC_MIN_LEFT (HZ/100) +#endif -struct ieee80211_work { +struct ieee80211_roc_work { struct list_head list; + struct list_head dependents; - struct rcu_head rcu_head; + struct delayed_work work; struct ieee80211_sub_if_data *sdata; - enum work_done_result (*done)(struct ieee80211_work *wk, - struct sk_buff *skb); - struct ieee80211_channel *chan; enum nl80211_channel_type chan_type; - unsigned long timeout; - enum ieee80211_work_type type; + bool started, abort, hw_begun, notified; - bool started; + unsigned long hw_start_time; - union { - struct { - u32 duration; - } remain; - struct { - struct sk_buff *frame; - u32 wait; - bool status; - } offchan_tx; - }; - - size_t data_len; - u8 data[]; + u32 duration, req_duration; + struct sk_buff *frame; + u64 mgmt_tx_cookie; }; /* flags used in struct ieee80211_if_managed.flags */ @@ -399,7 +374,6 @@ struct ieee80211_mgd_auth_data { struct ieee80211_mgd_assoc_data { struct cfg80211_bss *bss; const u8 *supp_rates; - const u8 *ht_operation_ie; unsigned long timeout; int tries; @@ -414,6 +388,8 @@ struct ieee80211_mgd_assoc_data { bool sent_assoc; bool synced; + u8 ap_ht_param; + size_t ie_len; u8 ie[]; }; @@ -847,13 +823,6 @@ struct ieee80211_local { const struct ieee80211_ops *ops; /* - * work stuff, potentially off-channel (in the future) - */ - struct list_head work_list; - struct timer_list work_timer; - struct work_struct work_work; - - /* * private workqueue to mac80211. mac80211 makes this accessible * via ieee80211_queue_work() */ @@ -1087,14 +1056,12 @@ struct ieee80211_local { } debugfs; #endif - struct ieee80211_channel *hw_roc_channel; - struct net_device *hw_roc_dev; - struct sk_buff *hw_roc_skb, *hw_roc_skb_for_status; + /* + * Remain-on-channel support + */ + struct list_head roc_list; struct work_struct hw_roc_start, hw_roc_done; - enum nl80211_channel_type hw_roc_channel_type; - unsigned int hw_roc_duration; - u32 hw_roc_cookie; - bool hw_roc_for_tx; + unsigned long hw_roc_start_time; struct idr ack_status_frames; spinlock_t ack_status_lock; @@ -1290,7 +1257,12 @@ void ieee80211_offchannel_stop_vifs(struct ieee80211_local *local, bool offchannel_ps_enable); void ieee80211_offchannel_return(struct ieee80211_local *local, bool offchannel_ps_disable); -void ieee80211_hw_roc_setup(struct ieee80211_local *local); +void ieee80211_roc_setup(struct ieee80211_local *local); +void ieee80211_start_next_roc(struct ieee80211_local *local); +void ieee80211_roc_purge(struct ieee80211_sub_if_data *sdata); +void ieee80211_roc_notify_destroy(struct ieee80211_roc_work *roc); +void ieee80211_sw_roc_work(struct work_struct *work); +void ieee80211_handle_roc_started(struct ieee80211_roc_work *roc); /* interface handling */ int ieee80211_iface_init(void); @@ -1500,18 +1472,6 @@ u8 *ieee80211_ie_build_ht_oper(u8 *pos, struct ieee80211_sta_ht_cap *ht_cap, enum nl80211_channel_type channel_type, u16 prot_mode); -/* internal work items */ -void ieee80211_work_init(struct ieee80211_local *local); -void ieee80211_add_work(struct ieee80211_work *wk); -void free_work(struct ieee80211_work *wk); -void ieee80211_work_purge(struct ieee80211_sub_if_data *sdata); -int ieee80211_wk_remain_on_channel(struct ieee80211_sub_if_data *sdata, - struct ieee80211_channel *chan, - enum nl80211_channel_type channel_type, - unsigned int duration, u64 *cookie); -int ieee80211_wk_cancel_remain_on_channel( - struct ieee80211_sub_if_data *sdata, u64 cookie); - /* channel management */ enum ieee80211_chan_mode { CHAN_MODE_UNDEFINED, diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c index 8664111d0566..87aeb4f21ffd 100644 --- a/net/mac80211/iface.c +++ b/net/mac80211/iface.c @@ -58,7 +58,7 @@ static int ieee80211_change_mtu(struct net_device *dev, int new_mtu) } #ifdef CONFIG_MAC80211_VERBOSE_DEBUG - printk(KERN_DEBUG "%s: setting MTU %d\n", dev->name, new_mtu); + pr_debug("%s: setting MTU %d\n", dev->name, new_mtu); #endif /* CONFIG_MAC80211_VERBOSE_DEBUG */ dev->mtu = new_mtu; return 0; @@ -528,10 +528,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, */ netif_tx_stop_all_queues(sdata->dev); - /* - * Purge work for this interface. - */ - ieee80211_work_purge(sdata); + ieee80211_roc_purge(sdata); /* * Remove all stations associated with this interface. @@ -637,18 +634,6 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, ieee80211_configure_filter(local); break; default: - mutex_lock(&local->mtx); - if (local->hw_roc_dev == sdata->dev && - local->hw_roc_channel) { - /* ignore return value since this is racy */ - drv_cancel_remain_on_channel(local); - ieee80211_queue_work(&local->hw, &local->hw_roc_done); - } - mutex_unlock(&local->mtx); - - flush_work(&local->hw_roc_start); - flush_work(&local->hw_roc_done); - flush_work(&sdata->work); /* * When we get here, the interface is marked down. @@ -1238,7 +1223,7 @@ static void ieee80211_assign_perm_addr(struct ieee80211_local *local, if (__ffs64(mask) + hweight64(mask) != fls64(mask)) { /* not a contiguous mask ... not handled now! */ - printk(KERN_DEBUG "not contiguous\n"); + pr_debug("not contiguous\n"); break; } @@ -1364,6 +1349,8 @@ int ieee80211_if_add(struct ieee80211_local *local, const char *name, sdata->u.mgd.use_4addr = params->use_4addr; } + ndev->features |= local->hw.netdev_features; + ret = register_netdevice(ndev); if (ret) goto fail; @@ -1454,9 +1441,9 @@ u32 __ieee80211_recalc_idle(struct ieee80211_local *local) { struct ieee80211_sub_if_data *sdata; int count = 0; - bool working = false, scanning = false, hw_roc = false; - struct ieee80211_work *wk; + bool working = false, scanning = false; unsigned int led_trig_start = 0, led_trig_stop = 0; + struct ieee80211_roc_work *roc; #ifdef CONFIG_PROVE_LOCKING WARN_ON(debug_locks && !lockdep_rtnl_is_held() && @@ -1491,9 +1478,11 @@ u32 __ieee80211_recalc_idle(struct ieee80211_local *local) count++; } - list_for_each_entry(wk, &local->work_list, list) { - working = true; - wk->sdata->vif.bss_conf.idle = false; + if (!local->ops->remain_on_channel) { + list_for_each_entry(roc, &local->roc_list, list) { + working = true; + roc->sdata->vif.bss_conf.idle = false; + } } if (local->scan_sdata && @@ -1502,9 +1491,6 @@ u32 __ieee80211_recalc_idle(struct ieee80211_local *local) local->scan_sdata->vif.bss_conf.idle = false; } - if (local->hw_roc_channel) - hw_roc = true; - list_for_each_entry(sdata, &local->interfaces, list) { if (sdata->vif.type == NL80211_IFTYPE_MONITOR || sdata->vif.type == NL80211_IFTYPE_AP_VLAN) @@ -1516,7 +1502,7 @@ u32 __ieee80211_recalc_idle(struct ieee80211_local *local) ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_IDLE); } - if (working || scanning || hw_roc) + if (working || scanning) led_trig_start |= IEEE80211_TPT_LEDTRIG_FL_WORK; else led_trig_stop |= IEEE80211_TPT_LEDTRIG_FL_WORK; @@ -1528,8 +1514,6 @@ u32 __ieee80211_recalc_idle(struct ieee80211_local *local) ieee80211_mod_tpt_led_trig(local, led_trig_start, led_trig_stop); - if (hw_roc) - return ieee80211_idle_off(local, "hw remain-on-channel"); if (working) return ieee80211_idle_off(local, "working"); if (scanning) diff --git a/net/mac80211/main.c b/net/mac80211/main.c index f5548e953259..d81c178c7712 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -625,8 +625,6 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, INIT_DELAYED_WORK(&local->scan_work, ieee80211_scan_work); - ieee80211_work_init(local); - INIT_WORK(&local->restart_work, ieee80211_restart_work); INIT_WORK(&local->reconfig_filter, ieee80211_reconfig_filter); @@ -669,7 +667,7 @@ struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, ieee80211_led_names(local); - ieee80211_hw_roc_setup(local); + ieee80211_roc_setup(local); return &local->hw; } @@ -682,6 +680,7 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) enum ieee80211_band band; int channels, max_bitrates; bool supp_ht; + netdev_features_t feature_whitelist; static const u32 cipher_suites[] = { /* keep WEP first, it may be removed below */ WLAN_CIPHER_SUITE_WEP40, @@ -708,6 +707,12 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) if ((hw->flags & IEEE80211_HW_SCAN_WHILE_IDLE) && !local->ops->hw_scan) return -EINVAL; + /* Only HW csum features are currently compatible with mac80211 */ + feature_whitelist = NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | + NETIF_F_HW_CSUM; + if (WARN_ON(hw->netdev_features & ~feature_whitelist)) + return -EINVAL; + if (hw->max_report_rates == 0) hw->max_report_rates = hw->max_rates; @@ -1009,12 +1014,6 @@ void ieee80211_unregister_hw(struct ieee80211_hw *hw) rtnl_unlock(); - /* - * Now all work items will be gone, but the - * timer might still be armed, so delete it - */ - del_timer_sync(&local->work_timer); - cancel_work_sync(&local->restart_work); cancel_work_sync(&local->reconfig_filter); diff --git a/net/mac80211/mesh.c b/net/mac80211/mesh.c index 2913113c5833..7cf19509fb68 100644 --- a/net/mac80211/mesh.c +++ b/net/mac80211/mesh.c @@ -524,8 +524,7 @@ static void ieee80211_mesh_housekeeping(struct ieee80211_sub_if_data *sdata, bool free_plinks; #ifdef CONFIG_MAC80211_VERBOSE_DEBUG - printk(KERN_DEBUG "%s: running mesh housekeeping\n", - sdata->name); + pr_debug("%s: running mesh housekeeping\n", sdata->name); #endif ieee80211_sta_expire(sdata, IEEE80211_MESH_PEER_INACTIVITY_LIMIT); diff --git a/net/mac80211/mesh_hwmp.c b/net/mac80211/mesh_hwmp.c index 9b59658e8650..fa7c58035246 100644 --- a/net/mac80211/mesh_hwmp.c +++ b/net/mac80211/mesh_hwmp.c @@ -15,7 +15,7 @@ #ifdef CONFIG_MAC80211_VERBOSE_MHWMP_DEBUG #define mhwmp_dbg(fmt, args...) \ - printk(KERN_DEBUG "Mesh HWMP (%s): " fmt "\n", sdata->name, ##args) + pr_debug("Mesh HWMP (%s): " fmt "\n", sdata->name, ##args) #else #define mhwmp_dbg(fmt, args...) do { (void)(0); } while (0) #endif diff --git a/net/mac80211/mesh_pathtbl.c b/net/mac80211/mesh_pathtbl.c index b39224d8255c..572f706fd65b 100644 --- a/net/mac80211/mesh_pathtbl.c +++ b/net/mac80211/mesh_pathtbl.c @@ -19,7 +19,7 @@ #include "mesh.h" #ifdef CONFIG_MAC80211_VERBOSE_MPATH_DEBUG -#define mpath_dbg(fmt, args...) printk(KERN_DEBUG fmt, ##args) +#define mpath_dbg(fmt, args...) pr_debug(fmt, ##args) #else #define mpath_dbg(fmt, args...) do { (void)(0); } while (0) #endif diff --git a/net/mac80211/mesh_plink.c b/net/mac80211/mesh_plink.c index 60ef235c9d9b..be4fad128c34 100644 --- a/net/mac80211/mesh_plink.c +++ b/net/mac80211/mesh_plink.c @@ -14,7 +14,7 @@ #include "mesh.h" #ifdef CONFIG_MAC80211_VERBOSE_MPL_DEBUG -#define mpl_dbg(fmt, args...) printk(KERN_DEBUG fmt, ##args) +#define mpl_dbg(fmt, args...) pr_debug(fmt, ##args) #else #define mpl_dbg(fmt, args...) do { (void)(0); } while (0) #endif diff --git a/net/mac80211/mesh_sync.c b/net/mac80211/mesh_sync.c index 38d30e8ce6dc..0ccdad49f987 100644 --- a/net/mac80211/mesh_sync.c +++ b/net/mac80211/mesh_sync.c @@ -14,7 +14,7 @@ #ifdef CONFIG_MAC80211_VERBOSE_MESH_SYNC_DEBUG #define msync_dbg(fmt, args...) \ - printk(KERN_DEBUG "Mesh sync (%s): " fmt "\n", sdata->name, ##args) + pr_debug("Mesh sync (%s): " fmt "\n", sdata->name, ##args) #else #define msync_dbg(fmt, args...) do { (void)(0); } while (0) #endif diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 91d84cc77bbf..d7134c170336 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -258,12 +258,11 @@ static int ieee80211_compatible_rates(const u8 *supp_rates, int supp_rates_len, } static void ieee80211_add_ht_ie(struct ieee80211_sub_if_data *sdata, - struct sk_buff *skb, const u8 *ht_oper_ie, + struct sk_buff *skb, u8 ap_ht_param, struct ieee80211_supported_band *sband, struct ieee80211_channel *channel, enum ieee80211_smps_mode smps) { - struct ieee80211_ht_operation *ht_oper; u8 *pos; u32 flags = channel->flags; u16 cap; @@ -271,21 +270,13 @@ static void ieee80211_add_ht_ie(struct ieee80211_sub_if_data *sdata, BUILD_BUG_ON(sizeof(ht_cap) != sizeof(sband->ht_cap)); - if (!ht_oper_ie) - return; - - if (ht_oper_ie[1] < sizeof(struct ieee80211_ht_operation)) - return; - memcpy(&ht_cap, &sband->ht_cap, sizeof(ht_cap)); ieee80211_apply_htcap_overrides(sdata, &ht_cap); - ht_oper = (struct ieee80211_ht_operation *)(ht_oper_ie + 2); - /* determine capability flags */ cap = ht_cap.cap; - switch (ht_oper->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) { + switch (ap_ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) { case IEEE80211_HT_PARAM_CHA_SEC_ABOVE: if (flags & IEEE80211_CHAN_NO_HT40PLUS) { cap &= ~IEEE80211_HT_CAP_SUP_WIDTH_20_40; @@ -509,7 +500,7 @@ static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata) } if (!(ifmgd->flags & IEEE80211_STA_DISABLE_11N)) - ieee80211_add_ht_ie(sdata, skb, assoc_data->ht_operation_ie, + ieee80211_add_ht_ie(sdata, skb, assoc_data->ap_ht_param, sband, local->oper_channel, ifmgd->ap_smps); /* if present, add any custom non-vendor IEs that go after HT */ @@ -939,11 +930,6 @@ void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency) return; } - if (!list_empty(&local->work_list)) { - local->ps_sdata = NULL; - goto change; - } - list_for_each_entry(sdata, &local->interfaces, list) { if (!ieee80211_sdata_running(sdata)) continue; @@ -1016,7 +1002,6 @@ void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency) local->ps_sdata = NULL; } - change: ieee80211_change_ps(local); } @@ -1585,6 +1570,8 @@ static void ieee80211_mgd_probe_ap(struct ieee80211_sub_if_data *sdata, net_dbg_ratelimited("%s: detected beacon loss from AP - sending probe request\n", sdata->name); #endif + ieee80211_cqm_rssi_notify(&sdata->vif, + NL80211_CQM_RSSI_BEACON_LOSS_EVENT, GFP_KERNEL); /* * The driver/our work has already reported this event or the @@ -1667,8 +1654,7 @@ static void __ieee80211_connection_loss(struct ieee80211_sub_if_data *sdata) memcpy(bssid, ifmgd->associated->bssid, ETH_ALEN); - printk(KERN_DEBUG "%s: Connection to AP %pM lost.\n", - sdata->name, bssid); + pr_debug("%s: Connection to AP %pM lost\n", sdata->name, bssid); ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DEAUTH, WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY, @@ -1802,9 +1788,10 @@ ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata, return RX_MGMT_NONE; if (status_code != WLAN_STATUS_SUCCESS) { - printk(KERN_DEBUG "%s: %pM denied authentication (status %d)\n", - sdata->name, mgmt->sa, status_code); - goto out; + pr_debug("%s: %pM denied authentication (status %d)\n", + sdata->name, mgmt->sa, status_code); + ieee80211_destroy_auth_data(sdata, false); + return RX_MGMT_CFG80211_RX_AUTH; } switch (ifmgd->auth_data->algorithm) { @@ -1825,8 +1812,7 @@ ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata, return RX_MGMT_NONE; } - printk(KERN_DEBUG "%s: authenticated\n", sdata->name); - out: + pr_debug("%s: authenticated\n", sdata->name); ifmgd->auth_data->done = true; ifmgd->auth_data->timeout = jiffies + IEEE80211_AUTH_WAIT_ASSOC; run_again(ifmgd, ifmgd->auth_data->timeout); @@ -1839,8 +1825,7 @@ ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata, goto out_err; } if (sta_info_move_state(sta, IEEE80211_STA_AUTH)) { - printk(KERN_DEBUG "%s: failed moving %pM to auth\n", - sdata->name, bssid); + pr_debug("%s: failed moving %pM to auth\n", sdata->name, bssid); goto out_err; } mutex_unlock(&sdata->local->sta_mtx); @@ -1874,8 +1859,8 @@ ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata, reason_code = le16_to_cpu(mgmt->u.deauth.reason_code); - printk(KERN_DEBUG "%s: deauthenticated from %pM (Reason: %u)\n", - sdata->name, bssid, reason_code); + pr_debug("%s: deauthenticated from %pM (Reason: %u)\n", + sdata->name, bssid, reason_code); ieee80211_set_disassoc(sdata, 0, 0, false, NULL); @@ -1905,8 +1890,8 @@ ieee80211_rx_mgmt_disassoc(struct ieee80211_sub_if_data *sdata, reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code); - printk(KERN_DEBUG "%s: disassociated from %pM (Reason: %u)\n", - sdata->name, mgmt->sa, reason_code); + pr_debug("%s: disassociated from %pM (Reason: %u)\n", + sdata->name, mgmt->sa, reason_code); ieee80211_set_disassoc(sdata, 0, 0, false, NULL); @@ -1998,17 +1983,15 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata, capab_info = le16_to_cpu(mgmt->u.assoc_resp.capab_info); if ((aid & (BIT(15) | BIT(14))) != (BIT(15) | BIT(14))) - printk(KERN_DEBUG - "%s: invalid AID value 0x%x; bits 15:14 not set\n", - sdata->name, aid); + pr_debug("%s: invalid AID value 0x%x; bits 15:14 not set\n", + sdata->name, aid); aid &= ~(BIT(15) | BIT(14)); ifmgd->broken_ap = false; if (aid == 0 || aid > IEEE80211_MAX_AID) { - printk(KERN_DEBUG - "%s: invalid AID value %d (out of range), turn off PS\n", - sdata->name, aid); + pr_debug("%s: invalid AID value %d (out of range), turn off PS\n", + sdata->name, aid); aid = 0; ifmgd->broken_ap = true; } @@ -2017,8 +2000,8 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata, ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems); if (!elems.supp_rates) { - printk(KERN_DEBUG "%s: no SuppRates element in AssocResp\n", - sdata->name); + pr_debug("%s: no SuppRates element in AssocResp\n", + sdata->name); return false; } @@ -2058,9 +2041,8 @@ static bool ieee80211_assoc_success(struct ieee80211_sub_if_data *sdata, if (!err && !(ifmgd->flags & IEEE80211_STA_CONTROL_PORT)) err = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); if (err) { - printk(KERN_DEBUG - "%s: failed to move station %pM to desired state\n", - sdata->name, sta->sta.addr); + pr_debug("%s: failed to move station %pM to desired state\n", + sdata->name, sta->sta.addr); WARN_ON(__sta_info_destroy(sta)); mutex_unlock(&sdata->local->sta_mtx); return false; @@ -2143,10 +2125,9 @@ ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, status_code = le16_to_cpu(mgmt->u.assoc_resp.status_code); aid = le16_to_cpu(mgmt->u.assoc_resp.aid); - printk(KERN_DEBUG "%s: RX %sssocResp from %pM (capab=0x%x " - "status=%d aid=%d)\n", - sdata->name, reassoc ? "Rea" : "A", mgmt->sa, - capab_info, status_code, (u16)(aid & ~(BIT(15) | BIT(14)))); + pr_debug("%s: RX %sssocResp from %pM (capab=0x%x status=%d aid=%d)\n", + sdata->name, reassoc ? "Rea" : "A", mgmt->sa, + capab_info, status_code, (u16)(aid & ~(BIT(15) | BIT(14)))); pos = mgmt->u.assoc_resp.variable; ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems); @@ -2157,9 +2138,8 @@ ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, u32 tu, ms; tu = get_unaligned_le32(elems.timeout_int + 1); ms = tu * 1024 / 1000; - printk(KERN_DEBUG "%s: %pM rejected association temporarily; " - "comeback duration %u TU (%u ms)\n", - sdata->name, mgmt->sa, tu, ms); + pr_debug("%s: %pM rejected association temporarily; comeback duration %u TU (%u ms)\n", + sdata->name, mgmt->sa, tu, ms); assoc_data->timeout = jiffies + msecs_to_jiffies(ms); if (ms > IEEE80211_ASSOC_TIMEOUT) run_again(ifmgd, assoc_data->timeout); @@ -2169,11 +2149,11 @@ ieee80211_rx_mgmt_assoc_resp(struct ieee80211_sub_if_data *sdata, *bss = assoc_data->bss; if (status_code != WLAN_STATUS_SUCCESS) { - printk(KERN_DEBUG "%s: %pM denied association (code=%d)\n", - sdata->name, mgmt->sa, status_code); + pr_debug("%s: %pM denied association (code=%d)\n", + sdata->name, mgmt->sa, status_code); ieee80211_destroy_assoc_data(sdata, false); } else { - printk(KERN_DEBUG "%s: associated\n", sdata->name); + pr_debug("%s: associated\n", sdata->name); if (!ieee80211_assoc_success(sdata, *bss, mgmt, len)) { /* oops -- internal error -- send timeout for now */ @@ -2281,7 +2261,7 @@ static void ieee80211_rx_mgmt_probe_resp(struct ieee80211_sub_if_data *sdata, if (ifmgd->auth_data && !ifmgd->auth_data->bss->proberesp_ies && ether_addr_equal(mgmt->bssid, ifmgd->auth_data->bss->bssid)) { /* got probe response, continue with auth */ - printk(KERN_DEBUG "%s: direct probe responded\n", sdata->name); + pr_debug("%s: direct probe responded\n", sdata->name); ifmgd->auth_data->tries = 0; ifmgd->auth_data->timeout = jiffies; run_again(ifmgd, ifmgd->auth_data->timeout); @@ -2645,8 +2625,8 @@ static int ieee80211_probe_auth(struct ieee80211_sub_if_data *sdata) auth_data->tries++; if (auth_data->tries > IEEE80211_AUTH_MAX_TRIES) { - printk(KERN_DEBUG "%s: authentication with %pM timed out\n", - sdata->name, auth_data->bss->bssid); + pr_debug("%s: authentication with %pM timed out\n", + sdata->name, auth_data->bss->bssid); /* * Most likely AP is not in the range so remove the @@ -2658,9 +2638,9 @@ static int ieee80211_probe_auth(struct ieee80211_sub_if_data *sdata) } if (auth_data->bss->proberesp_ies) { - printk(KERN_DEBUG "%s: send auth to %pM (try %d/%d)\n", - sdata->name, auth_data->bss->bssid, auth_data->tries, - IEEE80211_AUTH_MAX_TRIES); + pr_debug("%s: send auth to %pM (try %d/%d)\n", + sdata->name, auth_data->bss->bssid, auth_data->tries, + IEEE80211_AUTH_MAX_TRIES); auth_data->expected_transaction = 2; ieee80211_send_auth(sdata, 1, auth_data->algorithm, @@ -2670,9 +2650,9 @@ static int ieee80211_probe_auth(struct ieee80211_sub_if_data *sdata) } else { const u8 *ssidie; - printk(KERN_DEBUG "%s: direct probe to %pM (try %d/%i)\n", - sdata->name, auth_data->bss->bssid, auth_data->tries, - IEEE80211_AUTH_MAX_TRIES); + pr_debug("%s: direct probe to %pM (try %d/%i)\n", + sdata->name, auth_data->bss->bssid, auth_data->tries, + IEEE80211_AUTH_MAX_TRIES); ssidie = ieee80211_bss_get_ie(auth_data->bss, WLAN_EID_SSID); if (!ssidie) @@ -2700,8 +2680,8 @@ static int ieee80211_do_assoc(struct ieee80211_sub_if_data *sdata) assoc_data->tries++; if (assoc_data->tries > IEEE80211_ASSOC_MAX_TRIES) { - printk(KERN_DEBUG "%s: association with %pM timed out\n", - sdata->name, assoc_data->bss->bssid); + pr_debug("%s: association with %pM timed out\n", + sdata->name, assoc_data->bss->bssid); /* * Most likely AP is not in the range so remove the @@ -2712,9 +2692,9 @@ static int ieee80211_do_assoc(struct ieee80211_sub_if_data *sdata) return -ETIMEDOUT; } - printk(KERN_DEBUG "%s: associate with %pM (try %d/%d)\n", - sdata->name, assoc_data->bss->bssid, assoc_data->tries, - IEEE80211_ASSOC_MAX_TRIES); + pr_debug("%s: associate with %pM (try %d/%d)\n", + sdata->name, assoc_data->bss->bssid, assoc_data->tries, + IEEE80211_ASSOC_MAX_TRIES); ieee80211_send_assoc(sdata); assoc_data->timeout = jiffies + IEEE80211_ASSOC_TIMEOUT; @@ -3085,13 +3065,10 @@ static int ieee80211_prep_connection(struct ieee80211_sub_if_data *sdata, * since we look at probe response/beacon data here * it should be OK. */ - printk(KERN_DEBUG - "%s: Wrong control channel: center-freq: %d" - " ht-cfreq: %d ht->primary_chan: %d" - " band: %d. Disabling HT.\n", - sdata->name, cbss->channel->center_freq, - ht_cfreq, ht_oper->primary_chan, - cbss->channel->band); + pr_debug("%s: Wrong control channel: center-freq: %d ht-cfreq: %d ht->primary_chan: %d band: %d - Disabling HT\n", + sdata->name, cbss->channel->center_freq, + ht_cfreq, ht_oper->primary_chan, + cbss->channel->band); ht_oper = NULL; } } @@ -3115,9 +3092,8 @@ static int ieee80211_prep_connection(struct ieee80211_sub_if_data *sdata, if (!ieee80211_set_channel_type(local, sdata, channel_type)) { /* can only fail due to HT40+/- mismatch */ channel_type = NL80211_CHAN_HT20; - printk(KERN_DEBUG - "%s: disabling 40 MHz due to multi-vif mismatch\n", - sdata->name); + pr_debug("%s: disabling 40 MHz due to multi-vif mismatch\n", + sdata->name); ifmgd->flags |= IEEE80211_STA_DISABLE_40MHZ; WARN_ON(!ieee80211_set_channel_type(local, sdata, channel_type)); @@ -3146,9 +3122,8 @@ static int ieee80211_prep_connection(struct ieee80211_sub_if_data *sdata, * we can connect -- with a warning. */ if (!basic_rates && min_rate_index >= 0) { - printk(KERN_DEBUG - "%s: No basic rates, using min rate instead.\n", - sdata->name); + pr_debug("%s: No basic rates, using min rate instead\n", + sdata->name); basic_rates = BIT(min_rate_index); } @@ -3174,9 +3149,8 @@ static int ieee80211_prep_connection(struct ieee80211_sub_if_data *sdata, err = sta_info_insert(sta); sta = NULL; if (err) { - printk(KERN_DEBUG - "%s: failed to insert STA entry for the AP (error %d)\n", - sdata->name, err); + pr_debug("%s: failed to insert STA entry for the AP (error %d)\n", + sdata->name, err); return err; } } else @@ -3254,8 +3228,7 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata, if (ifmgd->associated) ieee80211_set_disassoc(sdata, 0, 0, false, NULL); - printk(KERN_DEBUG "%s: authenticate with %pM\n", - sdata->name, req->bss->bssid); + pr_debug("%s: authenticate with %pM\n", sdata->name, req->bss->bssid); err = ieee80211_prep_connection(sdata, req->bss, false); if (err) @@ -3290,7 +3263,7 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, struct ieee80211_bss *bss = (void *)req->bss->priv; struct ieee80211_mgd_assoc_data *assoc_data; struct ieee80211_supported_band *sband; - const u8 *ssidie; + const u8 *ssidie, *ht_ie; int i, err; ssidie = ieee80211_bss_get_ie(req->bss, WLAN_EID_SSID); @@ -3338,11 +3311,15 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, * We can set this to true for non-11n hardware, that'll be checked * separately along with the peer capabilities. */ - for (i = 0; i < req->crypto.n_ciphers_pairwise; i++) + for (i = 0; i < req->crypto.n_ciphers_pairwise; i++) { if (req->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_WEP40 || req->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_TKIP || - req->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_WEP104) + req->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_WEP104) { ifmgd->flags |= IEEE80211_STA_DISABLE_11N; + netdev_info(sdata->dev, + "disabling HT due to WEP/TKIP use\n"); + } + } if (req->flags & ASSOC_REQ_DISABLE_HT) ifmgd->flags |= IEEE80211_STA_DISABLE_11N; @@ -3350,8 +3327,11 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, /* Also disable HT if we don't support it or the AP doesn't use WMM */ sband = local->hw.wiphy->bands[req->bss->channel->band]; if (!sband->ht_cap.ht_supported || - local->hw.queues < IEEE80211_NUM_ACS || !bss->wmm_used) + local->hw.queues < IEEE80211_NUM_ACS || !bss->wmm_used) { ifmgd->flags |= IEEE80211_STA_DISABLE_11N; + netdev_info(sdata->dev, + "disabling HT as WMM/QoS is not supported\n"); + } memcpy(&ifmgd->ht_capa, &req->ht_capa, sizeof(ifmgd->ht_capa)); memcpy(&ifmgd->ht_capa_mask, &req->ht_capa_mask, @@ -3377,8 +3357,13 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, (local->hw.queues >= IEEE80211_NUM_ACS); assoc_data->supp_rates = bss->supp_rates; assoc_data->supp_rates_len = bss->supp_rates_len; - assoc_data->ht_operation_ie = - ieee80211_bss_get_ie(req->bss, WLAN_EID_HT_OPERATION); + + ht_ie = ieee80211_bss_get_ie(req->bss, WLAN_EID_HT_OPERATION); + if (ht_ie && ht_ie[1] >= sizeof(struct ieee80211_ht_operation)) + assoc_data->ap_ht_param = + ((struct ieee80211_ht_operation *)(ht_ie + 2))->ht_param; + else + ifmgd->flags |= IEEE80211_STA_DISABLE_11N; if (bss->wmm_used && bss->uapsd_supported && (sdata->local->hw.flags & IEEE80211_HW_SUPPORTS_UAPSD)) { @@ -3425,8 +3410,8 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, * Wait up to one beacon interval ... * should this be more if we miss one? */ - printk(KERN_DEBUG "%s: waiting for beacon from %pM\n", - sdata->name, ifmgd->bssid); + pr_debug("%s: waiting for beacon from %pM\n", + sdata->name, ifmgd->bssid); assoc_data->timeout = TU_TO_EXP_TIME(req->bss->beacon_interval); } else { assoc_data->have_beacon = true; @@ -3445,8 +3430,8 @@ int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata, corrupt_type = "beacon"; } else if (bss->corrupt_data & IEEE80211_BSS_CORRUPT_PROBE_RESP) corrupt_type = "probe response"; - printk(KERN_DEBUG "%s: associating with AP with corrupt %s\n", - sdata->name, corrupt_type); + pr_debug("%s: associating with AP with corrupt %s\n", + sdata->name, corrupt_type); } err = 0; @@ -3475,9 +3460,8 @@ int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata, return 0; } - printk(KERN_DEBUG - "%s: deauthenticating from %pM by local choice (reason=%d)\n", - sdata->name, req->bssid, req->reason_code); + pr_debug("%s: deauthenticating from %pM by local choice (reason=%d)\n", + sdata->name, req->bssid, req->reason_code); if (ifmgd->associated && ether_addr_equal(ifmgd->associated->bssid, req->bssid)) @@ -3519,8 +3503,8 @@ int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata, return -ENOLINK; } - printk(KERN_DEBUG "%s: disassociating from %pM by local choice (reason=%d)\n", - sdata->name, req->bss->bssid, req->reason_code); + pr_debug("%s: disassociating from %pM by local choice (reason=%d)\n", + sdata->name, req->bss->bssid, req->reason_code); memcpy(bssid, req->bss->bssid, ETH_ALEN); ieee80211_set_disassoc(sdata, IEEE80211_STYPE_DISASSOC, @@ -3561,10 +3545,3 @@ void ieee80211_cqm_rssi_notify(struct ieee80211_vif *vif, cfg80211_cqm_rssi_notify(sdata->dev, rssi_event, gfp); } EXPORT_SYMBOL(ieee80211_cqm_rssi_notify); - -unsigned char ieee80211_get_operstate(struct ieee80211_vif *vif) -{ - struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); - return sdata->dev->operstate; -} -EXPORT_SYMBOL(ieee80211_get_operstate); diff --git a/net/mac80211/offchannel.c b/net/mac80211/offchannel.c index 935aa4b6deee..abb226dc4753 100644 --- a/net/mac80211/offchannel.c +++ b/net/mac80211/offchannel.c @@ -16,6 +16,7 @@ #include <net/mac80211.h> #include "ieee80211_i.h" #include "driver-trace.h" +#include "driver-ops.h" /* * Tell our hardware to disable PS. @@ -181,34 +182,58 @@ void ieee80211_offchannel_return(struct ieee80211_local *local, mutex_unlock(&local->iflist_mtx); } +void ieee80211_handle_roc_started(struct ieee80211_roc_work *roc) +{ + if (roc->notified) + return; + + if (roc->mgmt_tx_cookie) { + if (!WARN_ON(!roc->frame)) { + ieee80211_tx_skb(roc->sdata, roc->frame); + roc->frame = NULL; + } + } else { + cfg80211_ready_on_channel(roc->sdata->dev, (unsigned long)roc, + roc->chan, roc->chan_type, + roc->req_duration, GFP_KERNEL); + } + + roc->notified = true; +} + static void ieee80211_hw_roc_start(struct work_struct *work) { struct ieee80211_local *local = container_of(work, struct ieee80211_local, hw_roc_start); - struct ieee80211_sub_if_data *sdata; + struct ieee80211_roc_work *roc, *dep, *tmp; mutex_lock(&local->mtx); - if (!local->hw_roc_channel) { - mutex_unlock(&local->mtx); - return; - } + if (list_empty(&local->roc_list)) + goto out_unlock; - if (local->hw_roc_skb) { - sdata = IEEE80211_DEV_TO_SUB_IF(local->hw_roc_dev); - ieee80211_tx_skb(sdata, local->hw_roc_skb); - local->hw_roc_skb = NULL; - } else { - cfg80211_ready_on_channel(local->hw_roc_dev, - local->hw_roc_cookie, - local->hw_roc_channel, - local->hw_roc_channel_type, - local->hw_roc_duration, - GFP_KERNEL); - } + roc = list_first_entry(&local->roc_list, struct ieee80211_roc_work, + list); + + if (!roc->started) + goto out_unlock; - ieee80211_recalc_idle(local); + roc->hw_begun = true; + roc->hw_start_time = local->hw_roc_start_time; + ieee80211_handle_roc_started(roc); + list_for_each_entry_safe(dep, tmp, &roc->dependents, list) { + ieee80211_handle_roc_started(dep); + + if (dep->duration > roc->duration) { + u32 dur = dep->duration; + dep->duration = dur - roc->duration; + roc->duration = dur; + list_del(&dep->list); + list_add(&dep->list, &roc->list); + } + } + out_unlock: mutex_unlock(&local->mtx); } @@ -216,52 +241,179 @@ void ieee80211_ready_on_channel(struct ieee80211_hw *hw) { struct ieee80211_local *local = hw_to_local(hw); + local->hw_roc_start_time = jiffies; + trace_api_ready_on_channel(local); ieee80211_queue_work(hw, &local->hw_roc_start); } EXPORT_SYMBOL_GPL(ieee80211_ready_on_channel); -static void ieee80211_hw_roc_done(struct work_struct *work) +void ieee80211_start_next_roc(struct ieee80211_local *local) { - struct ieee80211_local *local = - container_of(work, struct ieee80211_local, hw_roc_done); + struct ieee80211_roc_work *roc; - mutex_lock(&local->mtx); + lockdep_assert_held(&local->mtx); - if (!local->hw_roc_channel) { - mutex_unlock(&local->mtx); + if (list_empty(&local->roc_list)) { + ieee80211_run_deferred_scan(local); return; } - /* was never transmitted */ - if (local->hw_roc_skb) { - u64 cookie; + roc = list_first_entry(&local->roc_list, struct ieee80211_roc_work, + list); - cookie = local->hw_roc_cookie ^ 2; + if (local->ops->remain_on_channel) { + int ret, duration = roc->duration; - cfg80211_mgmt_tx_status(local->hw_roc_dev, cookie, - local->hw_roc_skb->data, - local->hw_roc_skb->len, false, - GFP_KERNEL); + /* XXX: duplicated, see ieee80211_start_roc_work() */ + if (!duration) + duration = 10; - kfree_skb(local->hw_roc_skb); - local->hw_roc_skb = NULL; - local->hw_roc_skb_for_status = NULL; + ret = drv_remain_on_channel(local, roc->chan, + roc->chan_type, + duration); + + roc->started = true; + + if (ret) { + wiphy_warn(local->hw.wiphy, + "failed to start next HW ROC (%d)\n", ret); + /* + * queue the work struct again to avoid recursion + * when multiple failures occur + */ + ieee80211_remain_on_channel_expired(&local->hw); + } + } else { + /* delay it a bit */ + ieee80211_queue_delayed_work(&local->hw, &roc->work, + round_jiffies_relative(HZ/2)); + } +} + +void ieee80211_roc_notify_destroy(struct ieee80211_roc_work *roc) +{ + struct ieee80211_roc_work *dep, *tmp; + + /* was never transmitted */ + if (roc->frame) { + cfg80211_mgmt_tx_status(roc->sdata->dev, + (unsigned long)roc->frame, + roc->frame->data, roc->frame->len, + false, GFP_KERNEL); + kfree_skb(roc->frame); } - if (!local->hw_roc_for_tx) - cfg80211_remain_on_channel_expired(local->hw_roc_dev, - local->hw_roc_cookie, - local->hw_roc_channel, - local->hw_roc_channel_type, + if (!roc->mgmt_tx_cookie) + cfg80211_remain_on_channel_expired(roc->sdata->dev, + (unsigned long)roc, + roc->chan, roc->chan_type, GFP_KERNEL); - local->hw_roc_channel = NULL; - local->hw_roc_cookie = 0; + list_for_each_entry_safe(dep, tmp, &roc->dependents, list) + ieee80211_roc_notify_destroy(dep); + + kfree(roc); +} + +void ieee80211_sw_roc_work(struct work_struct *work) +{ + struct ieee80211_roc_work *roc = + container_of(work, struct ieee80211_roc_work, work.work); + struct ieee80211_sub_if_data *sdata = roc->sdata; + struct ieee80211_local *local = sdata->local; + + mutex_lock(&local->mtx); + + if (roc->abort) + goto finish; + + if (WARN_ON(list_empty(&local->roc_list))) + goto out_unlock; + + if (WARN_ON(roc != list_first_entry(&local->roc_list, + struct ieee80211_roc_work, + list))) + goto out_unlock; + + if (!roc->started) { + struct ieee80211_roc_work *dep; + + /* start this ROC */ - ieee80211_recalc_idle(local); + /* switch channel etc */ + ieee80211_recalc_idle(local); + local->tmp_channel = roc->chan; + local->tmp_channel_type = roc->chan_type; + ieee80211_hw_config(local, 0); + + /* tell userspace or send frame */ + ieee80211_handle_roc_started(roc); + list_for_each_entry(dep, &roc->dependents, list) + ieee80211_handle_roc_started(dep); + + /* if it was pure TX, just finish right away */ + if (!roc->duration) + goto finish; + + roc->started = true; + ieee80211_queue_delayed_work(&local->hw, &roc->work, + msecs_to_jiffies(roc->duration)); + } else { + /* finish this ROC */ + finish: + list_del(&roc->list); + ieee80211_roc_notify_destroy(roc); + + if (roc->started) { + drv_flush(local, false); + + local->tmp_channel = NULL; + ieee80211_hw_config(local, 0); + + ieee80211_offchannel_return(local, true); + } + + ieee80211_recalc_idle(local); + + ieee80211_start_next_roc(local); + ieee80211_run_deferred_scan(local); + } + + out_unlock: + mutex_unlock(&local->mtx); +} + +static void ieee80211_hw_roc_done(struct work_struct *work) +{ + struct ieee80211_local *local = + container_of(work, struct ieee80211_local, hw_roc_done); + struct ieee80211_roc_work *roc; + + mutex_lock(&local->mtx); + + if (list_empty(&local->roc_list)) + goto out_unlock; + + roc = list_first_entry(&local->roc_list, struct ieee80211_roc_work, + list); + + if (!roc->started) + goto out_unlock; + + list_del(&roc->list); + + ieee80211_roc_notify_destroy(roc); + + /* if there's another roc, start it now */ + ieee80211_start_next_roc(local); + + /* or scan maybe */ + ieee80211_run_deferred_scan(local); + + out_unlock: mutex_unlock(&local->mtx); } @@ -275,8 +427,48 @@ void ieee80211_remain_on_channel_expired(struct ieee80211_hw *hw) } EXPORT_SYMBOL_GPL(ieee80211_remain_on_channel_expired); -void ieee80211_hw_roc_setup(struct ieee80211_local *local) +void ieee80211_roc_setup(struct ieee80211_local *local) { INIT_WORK(&local->hw_roc_start, ieee80211_hw_roc_start); INIT_WORK(&local->hw_roc_done, ieee80211_hw_roc_done); + INIT_LIST_HEAD(&local->roc_list); +} + +void ieee80211_roc_purge(struct ieee80211_sub_if_data *sdata) +{ + struct ieee80211_local *local = sdata->local; + struct ieee80211_roc_work *roc, *tmp; + LIST_HEAD(tmp_list); + + mutex_lock(&local->mtx); + list_for_each_entry_safe(roc, tmp, &local->roc_list, list) { + if (roc->sdata != sdata) + continue; + + if (roc->started && local->ops->remain_on_channel) { + /* can race, so ignore return value */ + drv_cancel_remain_on_channel(local); + } + + list_move_tail(&roc->list, &tmp_list); + roc->abort = true; + } + + ieee80211_start_next_roc(local); + ieee80211_run_deferred_scan(local); + mutex_unlock(&local->mtx); + + list_for_each_entry_safe(roc, tmp, &tmp_list, list) { + if (local->ops->remain_on_channel) { + list_del(&roc->list); + ieee80211_roc_notify_destroy(roc); + } else { + ieee80211_queue_delayed_work(&local->hw, &roc->work, 0); + + /* work will clean up etc */ + flush_delayed_work(&roc->work); + } + } + + WARN_ON_ONCE(!list_empty(&tmp_list)); } diff --git a/net/mac80211/pm.c b/net/mac80211/pm.c index af1c4e26e965..98c128be3827 100644 --- a/net/mac80211/pm.c +++ b/net/mac80211/pm.c @@ -77,6 +77,7 @@ int __ieee80211_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan) int err = drv_suspend(local, wowlan); if (err < 0) { local->quiescing = false; + local->wowlan = false; return err; } else if (err > 0) { WARN_ON(err != 1); diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 7bcecf73aafb..6fd2cb0838c4 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -1137,22 +1137,22 @@ static void ap_sta_ps_start(struct sta_info *sta) if (!(local->hw.flags & IEEE80211_HW_AP_LINK_PS)) drv_sta_notify(local, sdata, STA_NOTIFY_SLEEP, &sta->sta); #ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG - printk(KERN_DEBUG "%s: STA %pM aid %d enters power save mode\n", - sdata->name, sta->sta.addr, sta->sta.aid); + pr_debug("%s: STA %pM aid %d enters power save mode\n", + sdata->name, sta->sta.addr, sta->sta.aid); #endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */ } static void ap_sta_ps_end(struct sta_info *sta) { #ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG - printk(KERN_DEBUG "%s: STA %pM aid %d exits power save mode\n", - sta->sdata->name, sta->sta.addr, sta->sta.aid); + pr_debug("%s: STA %pM aid %d exits power save mode\n", + sta->sdata->name, sta->sta.addr, sta->sta.aid); #endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */ if (test_sta_flag(sta, WLAN_STA_PS_DRIVER)) { #ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG - printk(KERN_DEBUG "%s: STA %pM aid %d driver-ps-blocked\n", - sta->sdata->name, sta->sta.addr, sta->sta.aid); + pr_debug("%s: STA %pM aid %d driver-ps-blocked\n", + sta->sdata->name, sta->sta.addr, sta->sta.aid); #endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */ return; } @@ -1387,12 +1387,10 @@ ieee80211_reassemble_add(struct ieee80211_sub_if_data *sdata, #ifdef CONFIG_MAC80211_VERBOSE_DEBUG struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) entry->skb_list.next->data; - printk(KERN_DEBUG "%s: RX reassembly removed oldest " - "fragment entry (idx=%d age=%lu seq=%d last_frag=%d " - "addr1=%pM addr2=%pM\n", - sdata->name, idx, - jiffies - entry->first_frag_time, entry->seq, - entry->last_frag, hdr->addr1, hdr->addr2); + pr_debug("%s: RX reassembly removed oldest fragment entry (idx=%d age=%lu seq=%d last_frag=%d addr1=%pM addr2=%pM\n", + sdata->name, idx, + jiffies - entry->first_frag_time, entry->seq, + entry->last_frag, hdr->addr1, hdr->addr2); #endif __skb_queue_purge(&entry->skb_list); } diff --git a/net/mac80211/scan.c b/net/mac80211/scan.c index 169da0742c81..267b2940fadd 100644 --- a/net/mac80211/scan.c +++ b/net/mac80211/scan.c @@ -114,8 +114,7 @@ ieee80211_bss_info_update(struct ieee80211_local *local, if (elems->tim && (!elems->parse_error || !(bss->valid_data & IEEE80211_BSS_VALID_DTIM))) { - struct ieee80211_tim_ie *tim_ie = - (struct ieee80211_tim_ie *)elems->tim; + struct ieee80211_tim_ie *tim_ie = elems->tim; bss->dtim_period = tim_ie->dtim_period; if (!elems->parse_error) bss->valid_data |= IEEE80211_BSS_VALID_DTIM; @@ -323,7 +322,7 @@ static void __ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted, ieee80211_mlme_notify_scan_completed(local); ieee80211_ibss_notify_scan_completed(local); ieee80211_mesh_notify_scan_completed(local); - ieee80211_queue_work(&local->hw, &local->work_work); + ieee80211_start_next_roc(local); } void ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted) @@ -376,7 +375,7 @@ static int ieee80211_start_sw_scan(struct ieee80211_local *local) static bool ieee80211_can_scan(struct ieee80211_local *local, struct ieee80211_sub_if_data *sdata) { - if (!list_empty(&local->work_list)) + if (!list_empty(&local->roc_list)) return false; if (sdata->vif.type == NL80211_IFTYPE_STATION && diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index de455f8bbb91..77dcf2f89d42 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -333,9 +333,8 @@ static int sta_info_insert_drv_state(struct ieee80211_local *local, } if (sdata->vif.type == NL80211_IFTYPE_ADHOC) { - printk(KERN_DEBUG - "%s: failed to move IBSS STA %pM to state %d (%d) - keeping it anyway.\n", - sdata->name, sta->sta.addr, state + 1, err); + pr_debug("%s: failed to move IBSS STA %pM to state %d (%d) - keeping it anyway\n", + sdata->name, sta->sta.addr, state + 1, err); err = 0; } @@ -619,8 +618,7 @@ static bool sta_info_cleanup_expire_buffered_ac(struct ieee80211_local *local, local->total_ps_buffered--; #ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG - printk(KERN_DEBUG "Buffered frame expired (STA %pM)\n", - sta->sta.addr); + pr_debug("Buffered frame expired (STA %pM)\n", sta->sta.addr); #endif dev_kfree_skb(skb); } @@ -889,10 +887,8 @@ void ieee80211_sta_expire(struct ieee80211_sub_if_data *sdata, continue; if (time_after(jiffies, sta->last_rx + exp_time)) { -#ifdef CONFIG_MAC80211_IBSS_DEBUG - printk(KERN_DEBUG "%s: expiring inactive STA %pM\n", - sdata->name, sta->sta.addr); -#endif + ibss_vdbg("%s: expiring inactive STA %pM\n", + sdata->name, sta->sta.addr); WARN_ON(__sta_info_destroy(sta)); } } @@ -991,9 +987,8 @@ void ieee80211_sta_ps_deliver_wakeup(struct sta_info *sta) sta_info_recalc_tim(sta); #ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG - printk(KERN_DEBUG "%s: STA %pM aid %d sending %d filtered/%d PS frames " - "since STA not sleeping anymore\n", sdata->name, - sta->sta.addr, sta->sta.aid, filtered, buffered); + pr_debug("%s: STA %pM aid %d sending %d filtered/%d PS frames since STA not sleeping anymore\n", + sdata->name, sta->sta.addr, sta->sta.aid, filtered, buffered); #endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */ } @@ -1385,8 +1380,8 @@ int sta_info_move_state(struct sta_info *sta, } #ifdef CONFIG_MAC80211_VERBOSE_DEBUG - printk(KERN_DEBUG "%s: moving STA %pM to state %d\n", - sta->sdata->name, sta->sta.addr, new_state); + pr_debug("%s: moving STA %pM to state %d\n", + sta->sdata->name, sta->sta.addr, new_state); #endif /* diff --git a/net/mac80211/status.c b/net/mac80211/status.c index 28cfa981cfb1..6b4f42527887 100644 --- a/net/mac80211/status.c +++ b/net/mac80211/status.c @@ -520,36 +520,16 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) if (info->flags & IEEE80211_TX_INTFL_NL80211_FRAME_TX) { u64 cookie = (unsigned long)skb; + acked = info->flags & IEEE80211_TX_STAT_ACK; if (ieee80211_is_nullfunc(hdr->frame_control) || - ieee80211_is_qos_nullfunc(hdr->frame_control)) { - acked = info->flags & IEEE80211_TX_STAT_ACK; - + ieee80211_is_qos_nullfunc(hdr->frame_control)) cfg80211_probe_status(skb->dev, hdr->addr1, cookie, acked, GFP_ATOMIC); - } else { - struct ieee80211_work *wk; - - rcu_read_lock(); - list_for_each_entry_rcu(wk, &local->work_list, list) { - if (wk->type != IEEE80211_WORK_OFFCHANNEL_TX) - continue; - if (wk->offchan_tx.frame != skb) - continue; - wk->offchan_tx.status = true; - break; - } - rcu_read_unlock(); - if (local->hw_roc_skb_for_status == skb) { - cookie = local->hw_roc_cookie ^ 2; - local->hw_roc_skb_for_status = NULL; - } - + else cfg80211_mgmt_tx_status( skb->dev, cookie, skb->data, skb->len, - !!(info->flags & IEEE80211_TX_STAT_ACK), - GFP_ATOMIC); - } + acked, GFP_ATOMIC); } if (unlikely(info->ack_frame_id)) { @@ -589,7 +569,7 @@ void ieee80211_tx_status(struct ieee80211_hw *hw, struct sk_buff *skb) /* send frame to monitor interfaces now */ rtap_len = ieee80211_tx_radiotap_len(info); if (WARN_ON_ONCE(skb_headroom(skb) < rtap_len)) { - printk(KERN_ERR "ieee80211_tx_status: headroom too small\n"); + pr_err("ieee80211_tx_status: headroom too small\n"); dev_kfree_skb(skb); return; } diff --git a/net/mac80211/tkip.c b/net/mac80211/tkip.c index 51077a956a83..68be47ca208f 100644 --- a/net/mac80211/tkip.c +++ b/net/mac80211/tkip.c @@ -263,12 +263,11 @@ int ieee80211_tkip_decrypt_data(struct crypto_cipher *tfm, #ifdef CONFIG_MAC80211_TKIP_DEBUG { int i; - printk(KERN_DEBUG "TKIP decrypt: data(len=%zd)", payload_len); + pr_debug("TKIP decrypt: data(len=%zd)", payload_len); for (i = 0; i < payload_len; i++) printk(" %02x", payload[i]); printk("\n"); - printk(KERN_DEBUG "TKIP decrypt: iv16=%04x iv32=%08x\n", - iv16, iv32); + pr_debug("TKIP decrypt: iv16=%04x iv32=%08x\n", iv16, iv32); } #endif @@ -283,11 +282,10 @@ int ieee80211_tkip_decrypt_data(struct crypto_cipher *tfm, (iv32 == key->u.tkip.rx[queue].iv32 && iv16 <= key->u.tkip.rx[queue].iv16))) { #ifdef CONFIG_MAC80211_TKIP_DEBUG - printk(KERN_DEBUG "TKIP replay detected for RX frame from " - "%pM (RX IV (%04x,%02x) <= prev. IV (%04x,%02x)\n", - ta, - iv32, iv16, key->u.tkip.rx[queue].iv32, - key->u.tkip.rx[queue].iv16); + pr_debug("TKIP replay detected for RX frame from %pM (RX IV (%04x,%02x) <= prev. IV (%04x,%02x)\n", + ta, iv32, iv16, + key->u.tkip.rx[queue].iv32, + key->u.tkip.rx[queue].iv16); #endif return TKIP_DECRYPT_REPLAY; } @@ -306,13 +304,12 @@ int ieee80211_tkip_decrypt_data(struct crypto_cipher *tfm, { int i; u8 key_offset = NL80211_TKIP_DATA_OFFSET_ENCR_KEY; - printk(KERN_DEBUG "TKIP decrypt: Phase1 TA=%pM" - " TK=", ta); + pr_debug("TKIP decrypt: Phase1 TA=%pM TK=", ta); for (i = 0; i < 16; i++) printk("%02x ", key->conf.key[key_offset + i]); printk("\n"); - printk(KERN_DEBUG "TKIP decrypt: P1K="); + pr_debug("TKIP decrypt: P1K="); for (i = 0; i < 5; i++) printk("%04x ", key->u.tkip.rx[queue].p1k[i]); printk("\n"); @@ -336,7 +333,7 @@ int ieee80211_tkip_decrypt_data(struct crypto_cipher *tfm, #ifdef CONFIG_MAC80211_TKIP_DEBUG { int i; - printk(KERN_DEBUG "TKIP decrypt: Phase2 rc4key="); + pr_debug("TKIP decrypt: Phase2 rc4key="); for (i = 0; i < 16; i++) printk("%02x ", rc4key[i]); printk("\n"); diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index e453212fa17f..af25c4e7ec5c 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -297,9 +297,8 @@ ieee80211_tx_h_check_assoc(struct ieee80211_tx_data *tx) if (unlikely(!assoc && ieee80211_is_data(hdr->frame_control))) { #ifdef CONFIG_MAC80211_VERBOSE_DEBUG - printk(KERN_DEBUG "%s: dropped data frame to not " - "associated station %pM\n", - tx->sdata->name, hdr->addr1); + pr_debug("%s: dropped data frame to not associated station %pM\n", + tx->sdata->name, hdr->addr1); #endif /* CONFIG_MAC80211_VERBOSE_DEBUG */ I802_DEBUG_INC(tx->local->tx_handlers_drop_not_assoc); return TX_DROP; @@ -467,8 +466,8 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_tx_data *tx) } #ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG - printk(KERN_DEBUG "STA %pM aid %d: PS buffer for AC %d\n", - sta->sta.addr, sta->sta.aid, ac); + pr_debug("STA %pM aid %d: PS buffer for AC %d\n", + sta->sta.addr, sta->sta.aid, ac); #endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */ if (tx->local->total_ps_buffered >= TOTAL_MAX_TX_BUFFER) purge_old_ps_buffers(tx->local); @@ -502,9 +501,8 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_tx_data *tx) } #ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG else if (unlikely(test_sta_flag(sta, WLAN_STA_PS_STA))) { - printk(KERN_DEBUG - "%s: STA %pM in PS mode, but polling/in SP -> send frame\n", - tx->sdata->name, sta->sta.addr); + pr_debug("%s: STA %pM in PS mode, but polling/in SP -> send frame\n", + tx->sdata->name, sta->sta.addr); } #endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */ diff --git a/net/mac80211/util.c b/net/mac80211/util.c index 8dd4712620ff..1df4019f294b 100644 --- a/net/mac80211/util.c +++ b/net/mac80211/util.c @@ -804,7 +804,7 @@ void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata, struct ieee80211_local *local = sdata->local; struct ieee80211_tx_queue_params qparam; int ac; - bool use_11b; + bool use_11b, enable_qos; int aCWmin, aCWmax; if (!local->ops->conf_tx) @@ -818,6 +818,13 @@ void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata, use_11b = (local->hw.conf.channel->band == IEEE80211_BAND_2GHZ) && !(sdata->flags & IEEE80211_SDATA_OPERATING_GMODE); + /* + * By default disable QoS in STA mode for old access points, which do + * not support 802.11e. New APs will provide proper queue parameters, + * that we will configure later. + */ + enable_qos = (sdata->vif.type != NL80211_IFTYPE_STATION); + for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { /* Set defaults according to 802.11-2007 Table 7-37 */ aCWmax = 1023; @@ -826,38 +833,47 @@ void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata, else aCWmin = 15; - switch (ac) { - case IEEE80211_AC_BK: - qparam.cw_max = aCWmax; - qparam.cw_min = aCWmin; - qparam.txop = 0; - qparam.aifs = 7; - break; - default: /* never happens but let's not leave undefined */ - case IEEE80211_AC_BE: + if (enable_qos) { + switch (ac) { + case IEEE80211_AC_BK: + qparam.cw_max = aCWmax; + qparam.cw_min = aCWmin; + qparam.txop = 0; + qparam.aifs = 7; + break; + /* never happens but let's not leave undefined */ + default: + case IEEE80211_AC_BE: + qparam.cw_max = aCWmax; + qparam.cw_min = aCWmin; + qparam.txop = 0; + qparam.aifs = 3; + break; + case IEEE80211_AC_VI: + qparam.cw_max = aCWmin; + qparam.cw_min = (aCWmin + 1) / 2 - 1; + if (use_11b) + qparam.txop = 6016/32; + else + qparam.txop = 3008/32; + qparam.aifs = 2; + break; + case IEEE80211_AC_VO: + qparam.cw_max = (aCWmin + 1) / 2 - 1; + qparam.cw_min = (aCWmin + 1) / 4 - 1; + if (use_11b) + qparam.txop = 3264/32; + else + qparam.txop = 1504/32; + qparam.aifs = 2; + break; + } + } else { + /* Confiure old 802.11b/g medium access rules. */ qparam.cw_max = aCWmax; qparam.cw_min = aCWmin; qparam.txop = 0; - qparam.aifs = 3; - break; - case IEEE80211_AC_VI: - qparam.cw_max = aCWmin; - qparam.cw_min = (aCWmin + 1) / 2 - 1; - if (use_11b) - qparam.txop = 6016/32; - else - qparam.txop = 3008/32; - qparam.aifs = 2; - break; - case IEEE80211_AC_VO: - qparam.cw_max = (aCWmin + 1) / 2 - 1; - qparam.cw_min = (aCWmin + 1) / 4 - 1; - if (use_11b) - qparam.txop = 3264/32; - else - qparam.txop = 1504/32; qparam.aifs = 2; - break; } qparam.uapsd = false; @@ -866,12 +882,8 @@ void ieee80211_set_wmm_default(struct ieee80211_sub_if_data *sdata, drv_conf_tx(local, sdata, ac, &qparam); } - /* after reinitialize QoS TX queues setting to default, - * disable QoS at all */ - if (sdata->vif.type != NL80211_IFTYPE_MONITOR) { - sdata->vif.bss_conf.qos = - sdata->vif.type != NL80211_IFTYPE_STATION; + sdata->vif.bss_conf.qos = enable_qos; if (bss_notify) ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS); @@ -1267,14 +1279,19 @@ int ieee80211_reconfig(struct ieee80211_local *local) /* add STAs back */ mutex_lock(&local->sta_mtx); list_for_each_entry(sta, &local->sta_list, list) { - if (sta->uploaded) { - enum ieee80211_sta_state state; + enum ieee80211_sta_state state; - for (state = IEEE80211_STA_NOTEXIST; - state < sta->sta_state; state++) - WARN_ON(drv_sta_state(local, sta->sdata, sta, - state, state + 1)); - } + if (!sta->uploaded) + continue; + + /* AP-mode stations will be added later */ + if (sta->sdata->vif.type == NL80211_IFTYPE_AP) + continue; + + for (state = IEEE80211_STA_NOTEXIST; + state < sta->sta_state; state++) + WARN_ON(drv_sta_state(local, sta->sdata, sta, state, + state + 1)); } mutex_unlock(&local->sta_mtx); @@ -1371,6 +1388,24 @@ int ieee80211_reconfig(struct ieee80211_local *local) } } + /* APs are now beaconing, add back stations */ + mutex_lock(&local->sta_mtx); + list_for_each_entry(sta, &local->sta_list, list) { + enum ieee80211_sta_state state; + + if (!sta->uploaded) + continue; + + if (sta->sdata->vif.type != NL80211_IFTYPE_AP) + continue; + + for (state = IEEE80211_STA_NOTEXIST; + state < sta->sta_state; state++) + WARN_ON(drv_sta_state(local, sta->sdata, sta, state, + state + 1)); + } + mutex_unlock(&local->sta_mtx); + /* add back keys */ list_for_each_entry(sdata, &local->interfaces, list) if (ieee80211_sdata_running(sdata)) diff --git a/net/mac80211/work.c b/net/mac80211/work.c deleted file mode 100644 index b2650a9d45ff..000000000000 --- a/net/mac80211/work.c +++ /dev/null @@ -1,370 +0,0 @@ -/* - * mac80211 work implementation - * - * Copyright 2003-2008, Jouni Malinen <j@w1.fi> - * Copyright 2004, Instant802 Networks, Inc. - * Copyright 2005, Devicescape Software, Inc. - * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> - * Copyright 2007, Michael Wu <flamingice@sourmilk.net> - * Copyright 2009, Johannes Berg <johannes@sipsolutions.net> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#include <linux/delay.h> -#include <linux/if_ether.h> -#include <linux/skbuff.h> -#include <linux/if_arp.h> -#include <linux/etherdevice.h> -#include <linux/crc32.h> -#include <linux/slab.h> -#include <net/mac80211.h> -#include <asm/unaligned.h> - -#include "ieee80211_i.h" -#include "rate.h" -#include "driver-ops.h" - -enum work_action { - WORK_ACT_NONE, - WORK_ACT_TIMEOUT, -}; - - -/* utils */ -static inline void ASSERT_WORK_MTX(struct ieee80211_local *local) -{ - lockdep_assert_held(&local->mtx); -} - -/* - * We can have multiple work items (and connection probing) - * scheduling this timer, but we need to take care to only - * reschedule it when it should fire _earlier_ than it was - * asked for before, or if it's not pending right now. This - * function ensures that. Note that it then is required to - * run this function for all timeouts after the first one - * has happened -- the work that runs from this timer will - * do that. - */ -static void run_again(struct ieee80211_local *local, - unsigned long timeout) -{ - ASSERT_WORK_MTX(local); - - if (!timer_pending(&local->work_timer) || - time_before(timeout, local->work_timer.expires)) - mod_timer(&local->work_timer, timeout); -} - -void free_work(struct ieee80211_work *wk) -{ - kfree_rcu(wk, rcu_head); -} - -static enum work_action __must_check -ieee80211_remain_on_channel_timeout(struct ieee80211_work *wk) -{ - /* - * First time we run, do nothing -- the generic code will - * have switched to the right channel etc. - */ - if (!wk->started) { - wk->timeout = jiffies + msecs_to_jiffies(wk->remain.duration); - - cfg80211_ready_on_channel(wk->sdata->dev, (unsigned long) wk, - wk->chan, wk->chan_type, - wk->remain.duration, GFP_KERNEL); - - return WORK_ACT_NONE; - } - - return WORK_ACT_TIMEOUT; -} - -static enum work_action __must_check -ieee80211_offchannel_tx(struct ieee80211_work *wk) -{ - if (!wk->started) { - wk->timeout = jiffies + msecs_to_jiffies(wk->offchan_tx.wait); - - /* - * After this, offchan_tx.frame remains but now is no - * longer a valid pointer -- we still need it as the - * cookie for canceling this work/status matching. - */ - ieee80211_tx_skb(wk->sdata, wk->offchan_tx.frame); - - return WORK_ACT_NONE; - } - - return WORK_ACT_TIMEOUT; -} - -static void ieee80211_work_timer(unsigned long data) -{ - struct ieee80211_local *local = (void *) data; - - if (local->quiescing) - return; - - ieee80211_queue_work(&local->hw, &local->work_work); -} - -static void ieee80211_work_work(struct work_struct *work) -{ - struct ieee80211_local *local = - container_of(work, struct ieee80211_local, work_work); - struct ieee80211_work *wk, *tmp; - LIST_HEAD(free_work); - enum work_action rma; - bool remain_off_channel = false; - - /* - * ieee80211_queue_work() should have picked up most cases, - * here we'll pick the rest. - */ - if (WARN(local->suspended, "work scheduled while going to suspend\n")) - return; - - mutex_lock(&local->mtx); - - if (local->scanning) { - mutex_unlock(&local->mtx); - return; - } - - ieee80211_recalc_idle(local); - - list_for_each_entry_safe(wk, tmp, &local->work_list, list) { - bool started = wk->started; - - /* mark work as started if it's on the current off-channel */ - if (!started && local->tmp_channel && - wk->chan == local->tmp_channel && - wk->chan_type == local->tmp_channel_type) { - started = true; - wk->timeout = jiffies; - } - - if (!started && !local->tmp_channel) { - ieee80211_offchannel_stop_vifs(local, true); - - local->tmp_channel = wk->chan; - local->tmp_channel_type = wk->chan_type; - - ieee80211_hw_config(local, 0); - - started = true; - wk->timeout = jiffies; - } - - /* don't try to work with items that aren't started */ - if (!started) - continue; - - if (time_is_after_jiffies(wk->timeout)) { - /* - * This work item isn't supposed to be worked on - * right now, but take care to adjust the timer - * properly. - */ - run_again(local, wk->timeout); - continue; - } - - switch (wk->type) { - default: - WARN_ON(1); - /* nothing */ - rma = WORK_ACT_NONE; - break; - case IEEE80211_WORK_ABORT: - rma = WORK_ACT_TIMEOUT; - break; - case IEEE80211_WORK_REMAIN_ON_CHANNEL: - rma = ieee80211_remain_on_channel_timeout(wk); - break; - case IEEE80211_WORK_OFFCHANNEL_TX: - rma = ieee80211_offchannel_tx(wk); - break; - } - - wk->started = started; - - switch (rma) { - case WORK_ACT_NONE: - /* might have changed the timeout */ - run_again(local, wk->timeout); - break; - case WORK_ACT_TIMEOUT: - list_del_rcu(&wk->list); - synchronize_rcu(); - list_add(&wk->list, &free_work); - break; - default: - WARN(1, "unexpected: %d", rma); - } - } - - list_for_each_entry(wk, &local->work_list, list) { - if (!wk->started) - continue; - if (wk->chan != local->tmp_channel || - wk->chan_type != local->tmp_channel_type) - continue; - remain_off_channel = true; - } - - if (!remain_off_channel && local->tmp_channel) { - local->tmp_channel = NULL; - ieee80211_hw_config(local, 0); - - ieee80211_offchannel_return(local, true); - - /* give connection some time to breathe */ - run_again(local, jiffies + HZ/2); - } - - ieee80211_recalc_idle(local); - ieee80211_run_deferred_scan(local); - - mutex_unlock(&local->mtx); - - list_for_each_entry_safe(wk, tmp, &free_work, list) { - wk->done(wk, NULL); - list_del(&wk->list); - kfree(wk); - } -} - -void ieee80211_add_work(struct ieee80211_work *wk) -{ - struct ieee80211_local *local; - - if (WARN_ON(!wk->chan)) - return; - - if (WARN_ON(!wk->sdata)) - return; - - if (WARN_ON(!wk->done)) - return; - - if (WARN_ON(!ieee80211_sdata_running(wk->sdata))) - return; - - wk->started = false; - - local = wk->sdata->local; - mutex_lock(&local->mtx); - list_add_tail(&wk->list, &local->work_list); - mutex_unlock(&local->mtx); - - ieee80211_queue_work(&local->hw, &local->work_work); -} - -void ieee80211_work_init(struct ieee80211_local *local) -{ - INIT_LIST_HEAD(&local->work_list); - setup_timer(&local->work_timer, ieee80211_work_timer, - (unsigned long)local); - INIT_WORK(&local->work_work, ieee80211_work_work); -} - -void ieee80211_work_purge(struct ieee80211_sub_if_data *sdata) -{ - struct ieee80211_local *local = sdata->local; - struct ieee80211_work *wk; - bool cleanup = false; - - mutex_lock(&local->mtx); - list_for_each_entry(wk, &local->work_list, list) { - if (wk->sdata != sdata) - continue; - cleanup = true; - wk->type = IEEE80211_WORK_ABORT; - wk->started = true; - wk->timeout = jiffies; - } - mutex_unlock(&local->mtx); - - /* run cleanups etc. */ - if (cleanup) - ieee80211_work_work(&local->work_work); - - mutex_lock(&local->mtx); - list_for_each_entry(wk, &local->work_list, list) { - if (wk->sdata != sdata) - continue; - WARN_ON(1); - break; - } - mutex_unlock(&local->mtx); -} - -static enum work_done_result ieee80211_remain_done(struct ieee80211_work *wk, - struct sk_buff *skb) -{ - /* - * We are done serving the remain-on-channel command. - */ - cfg80211_remain_on_channel_expired(wk->sdata->dev, (unsigned long) wk, - wk->chan, wk->chan_type, - GFP_KERNEL); - - return WORK_DONE_DESTROY; -} - -int ieee80211_wk_remain_on_channel(struct ieee80211_sub_if_data *sdata, - struct ieee80211_channel *chan, - enum nl80211_channel_type channel_type, - unsigned int duration, u64 *cookie) -{ - struct ieee80211_work *wk; - - wk = kzalloc(sizeof(*wk), GFP_KERNEL); - if (!wk) - return -ENOMEM; - - wk->type = IEEE80211_WORK_REMAIN_ON_CHANNEL; - wk->chan = chan; - wk->chan_type = channel_type; - wk->sdata = sdata; - wk->done = ieee80211_remain_done; - - wk->remain.duration = duration; - - *cookie = (unsigned long) wk; - - ieee80211_add_work(wk); - - return 0; -} - -int ieee80211_wk_cancel_remain_on_channel(struct ieee80211_sub_if_data *sdata, - u64 cookie) -{ - struct ieee80211_local *local = sdata->local; - struct ieee80211_work *wk, *tmp; - bool found = false; - - mutex_lock(&local->mtx); - list_for_each_entry_safe(wk, tmp, &local->work_list, list) { - if ((unsigned long) wk == cookie) { - wk->timeout = jiffies; - found = true; - break; - } - } - mutex_unlock(&local->mtx); - - if (!found) - return -ENOENT; - - ieee80211_queue_work(&local->hw, &local->work_work); - - return 0; -} diff --git a/net/netfilter/ipvs/ip_vs_core.c b/net/netfilter/ipvs/ip_vs_core.c index a54b018c6eea..b54eccef40b5 100644 --- a/net/netfilter/ipvs/ip_vs_core.c +++ b/net/netfilter/ipvs/ip_vs_core.c @@ -1742,7 +1742,7 @@ static struct nf_hook_ops ip_vs_ops[] __read_mostly = { { .hook = ip_vs_reply4, .owner = THIS_MODULE, - .pf = PF_INET, + .pf = NFPROTO_IPV4, .hooknum = NF_INET_LOCAL_IN, .priority = NF_IP_PRI_NAT_SRC - 2, }, @@ -1752,7 +1752,7 @@ static struct nf_hook_ops ip_vs_ops[] __read_mostly = { { .hook = ip_vs_remote_request4, .owner = THIS_MODULE, - .pf = PF_INET, + .pf = NFPROTO_IPV4, .hooknum = NF_INET_LOCAL_IN, .priority = NF_IP_PRI_NAT_SRC - 1, }, @@ -1760,7 +1760,7 @@ static struct nf_hook_ops ip_vs_ops[] __read_mostly = { { .hook = ip_vs_local_reply4, .owner = THIS_MODULE, - .pf = PF_INET, + .pf = NFPROTO_IPV4, .hooknum = NF_INET_LOCAL_OUT, .priority = NF_IP_PRI_NAT_DST + 1, }, @@ -1768,7 +1768,7 @@ static struct nf_hook_ops ip_vs_ops[] __read_mostly = { { .hook = ip_vs_local_request4, .owner = THIS_MODULE, - .pf = PF_INET, + .pf = NFPROTO_IPV4, .hooknum = NF_INET_LOCAL_OUT, .priority = NF_IP_PRI_NAT_DST + 2, }, @@ -1777,7 +1777,7 @@ static struct nf_hook_ops ip_vs_ops[] __read_mostly = { { .hook = ip_vs_forward_icmp, .owner = THIS_MODULE, - .pf = PF_INET, + .pf = NFPROTO_IPV4, .hooknum = NF_INET_FORWARD, .priority = 99, }, @@ -1785,7 +1785,7 @@ static struct nf_hook_ops ip_vs_ops[] __read_mostly = { { .hook = ip_vs_reply4, .owner = THIS_MODULE, - .pf = PF_INET, + .pf = NFPROTO_IPV4, .hooknum = NF_INET_FORWARD, .priority = 100, }, @@ -1794,7 +1794,7 @@ static struct nf_hook_ops ip_vs_ops[] __read_mostly = { { .hook = ip_vs_reply6, .owner = THIS_MODULE, - .pf = PF_INET6, + .pf = NFPROTO_IPV6, .hooknum = NF_INET_LOCAL_IN, .priority = NF_IP6_PRI_NAT_SRC - 2, }, @@ -1804,7 +1804,7 @@ static struct nf_hook_ops ip_vs_ops[] __read_mostly = { { .hook = ip_vs_remote_request6, .owner = THIS_MODULE, - .pf = PF_INET6, + .pf = NFPROTO_IPV6, .hooknum = NF_INET_LOCAL_IN, .priority = NF_IP6_PRI_NAT_SRC - 1, }, @@ -1812,7 +1812,7 @@ static struct nf_hook_ops ip_vs_ops[] __read_mostly = { { .hook = ip_vs_local_reply6, .owner = THIS_MODULE, - .pf = PF_INET, + .pf = NFPROTO_IPV4, .hooknum = NF_INET_LOCAL_OUT, .priority = NF_IP6_PRI_NAT_DST + 1, }, @@ -1820,7 +1820,7 @@ static struct nf_hook_ops ip_vs_ops[] __read_mostly = { { .hook = ip_vs_local_request6, .owner = THIS_MODULE, - .pf = PF_INET6, + .pf = NFPROTO_IPV6, .hooknum = NF_INET_LOCAL_OUT, .priority = NF_IP6_PRI_NAT_DST + 2, }, @@ -1829,7 +1829,7 @@ static struct nf_hook_ops ip_vs_ops[] __read_mostly = { { .hook = ip_vs_forward_icmp_v6, .owner = THIS_MODULE, - .pf = PF_INET6, + .pf = NFPROTO_IPV6, .hooknum = NF_INET_FORWARD, .priority = 99, }, @@ -1837,7 +1837,7 @@ static struct nf_hook_ops ip_vs_ops[] __read_mostly = { { .hook = ip_vs_reply6, .owner = THIS_MODULE, - .pf = PF_INET6, + .pf = NFPROTO_IPV6, .hooknum = NF_INET_FORWARD, .priority = 100, }, diff --git a/net/netfilter/ipvs/ip_vs_xmit.c b/net/netfilter/ipvs/ip_vs_xmit.c index 7fd66dec859d..71d6ecb65926 100644 --- a/net/netfilter/ipvs/ip_vs_xmit.c +++ b/net/netfilter/ipvs/ip_vs_xmit.c @@ -823,7 +823,7 @@ ip_vs_tunnel_xmit(struct sk_buff *skb, struct ip_vs_conn *cp, IP_VS_ERR_RL("%s(): no memory\n", __func__); return NF_STOLEN; } - kfree_skb(skb); + consume_skb(skb); skb = new_skb; old_iph = ip_hdr(skb); } @@ -942,7 +942,7 @@ ip_vs_tunnel_xmit_v6(struct sk_buff *skb, struct ip_vs_conn *cp, IP_VS_ERR_RL("%s(): no memory\n", __func__); return NF_STOLEN; } - kfree_skb(skb); + consume_skb(skb); skb = new_skb; old_iph = ipv6_hdr(skb); } diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c index ac3af97cc468..1ee2082b81b5 100644 --- a/net/netfilter/nf_conntrack_core.c +++ b/net/netfilter/nf_conntrack_core.c @@ -531,7 +531,7 @@ __nf_conntrack_confirm(struct sk_buff *skb) tstamp = nf_conn_tstamp_find(ct); if (tstamp) { if (skb->tstamp.tv64 == 0) - __net_timestamp((struct sk_buff *)skb); + __net_timestamp(skb); tstamp->start = ktime_to_ns(skb->tstamp); } @@ -1333,7 +1333,6 @@ static void nf_conntrack_cleanup_init_net(void) while (untrack_refs() > 0) schedule(); - nf_conntrack_proto_fini(); #ifdef CONFIG_NF_CONNTRACK_ZONES nf_ct_extend_unregister(&nf_ct_zone_extend); #endif @@ -1372,7 +1371,7 @@ void nf_conntrack_cleanup(struct net *net) netfilter framework. Roll on, two-stage module delete... */ synchronize_net(); - + nf_conntrack_proto_fini(net); nf_conntrack_cleanup_net(net); if (net_eq(net, &init_net)) { @@ -1496,11 +1495,6 @@ static int nf_conntrack_init_init_net(void) printk(KERN_INFO "nf_conntrack version %s (%u buckets, %d max)\n", NF_CONNTRACK_VERSION, nf_conntrack_htable_size, nf_conntrack_max); - - ret = nf_conntrack_proto_init(); - if (ret < 0) - goto err_proto; - #ifdef CONFIG_NF_CONNTRACK_ZONES ret = nf_ct_extend_register(&nf_ct_zone_extend); if (ret < 0) @@ -1518,9 +1512,7 @@ static int nf_conntrack_init_init_net(void) #ifdef CONFIG_NF_CONNTRACK_ZONES err_extend: - nf_conntrack_proto_fini(); #endif -err_proto: return ret; } @@ -1583,9 +1575,7 @@ static int nf_conntrack_init_net(struct net *net) ret = nf_conntrack_helper_init(net); if (ret < 0) goto err_helper; - return 0; - err_helper: nf_conntrack_timeout_fini(net); err_timeout: @@ -1622,6 +1612,9 @@ int nf_conntrack_init(struct net *net) if (ret < 0) goto out_init_net; } + ret = nf_conntrack_proto_init(net); + if (ret < 0) + goto out_proto; ret = nf_conntrack_init_net(net); if (ret < 0) goto out_net; @@ -1637,6 +1630,8 @@ int nf_conntrack_init(struct net *net) return 0; out_net: + nf_conntrack_proto_fini(net); +out_proto: if (net_eq(net, &init_net)) nf_conntrack_cleanup_init_net(); out_init_net: diff --git a/net/netfilter/nf_conntrack_proto.c b/net/netfilter/nf_conntrack_proto.c index 8b631b07a645..1ea919450fc3 100644 --- a/net/netfilter/nf_conntrack_proto.c +++ b/net/netfilter/nf_conntrack_proto.c @@ -36,28 +36,35 @@ static DEFINE_MUTEX(nf_ct_proto_mutex); #ifdef CONFIG_SYSCTL static int -nf_ct_register_sysctl(struct ctl_table_header **header, const char *path, - struct ctl_table *table, unsigned int *users) +nf_ct_register_sysctl(struct net *net, + struct ctl_table_header **header, + const char *path, + struct ctl_table *table, + unsigned int *users) { if (*header == NULL) { - *header = register_net_sysctl(&init_net, path, table); + *header = register_net_sysctl(net, path, table); if (*header == NULL) return -ENOMEM; } if (users != NULL) (*users)++; + return 0; } static void nf_ct_unregister_sysctl(struct ctl_table_header **header, - struct ctl_table *table, unsigned int *users) + struct ctl_table **table, + unsigned int *users) { if (users != NULL && --*users > 0) return; unregister_net_sysctl_table(*header); + kfree(*table); *header = NULL; + *table = NULL; } #endif @@ -161,30 +168,57 @@ static int kill_l4proto(struct nf_conn *i, void *data) nf_ct_l3num(i) == l4proto->l3proto; } -static int nf_ct_l3proto_register_sysctl(struct nf_conntrack_l3proto *l3proto) +static struct nf_ip_net *nf_ct_l3proto_net(struct net *net, + struct nf_conntrack_l3proto *l3proto) { - int err = 0; + if (l3proto->l3proto == PF_INET) + return &net->ct.nf_ct_proto; + else + return NULL; +} -#ifdef CONFIG_SYSCTL - if (l3proto->ctl_table != NULL) { - err = nf_ct_register_sysctl(&l3proto->ctl_table_header, +static int nf_ct_l3proto_register_sysctl(struct net *net, + struct nf_conntrack_l3proto *l3proto) +{ + int err = 0; + struct nf_ip_net *in = nf_ct_l3proto_net(net, l3proto); + /* nf_conntrack_l3proto_ipv6 doesn't support sysctl */ + if (in == NULL) + return 0; + +#if defined(CONFIG_SYSCTL) && defined(CONFIG_NF_CONNTRACK_PROC_COMPAT) + if (in->ctl_table != NULL) { + err = nf_ct_register_sysctl(net, + &in->ctl_table_header, l3proto->ctl_table_path, - l3proto->ctl_table, NULL); + in->ctl_table, + NULL); + if (err < 0) { + kfree(in->ctl_table); + in->ctl_table = NULL; + } } #endif return err; } -static void nf_ct_l3proto_unregister_sysctl(struct nf_conntrack_l3proto *l3proto) +static void nf_ct_l3proto_unregister_sysctl(struct net *net, + struct nf_conntrack_l3proto *l3proto) { -#ifdef CONFIG_SYSCTL - if (l3proto->ctl_table_header != NULL) - nf_ct_unregister_sysctl(&l3proto->ctl_table_header, - l3proto->ctl_table, NULL); + struct nf_ip_net *in = nf_ct_l3proto_net(net, l3proto); + + if (in == NULL) + return; +#if defined(CONFIG_SYSCTL) && defined(CONFIG_NF_CONNTRACK_PROC_COMPAT) + if (in->ctl_table_header != NULL) + nf_ct_unregister_sysctl(&in->ctl_table_header, + &in->ctl_table, + NULL); #endif } -int nf_conntrack_l3proto_register(struct nf_conntrack_l3proto *proto) +static int +nf_conntrack_l3proto_register_net(struct nf_conntrack_l3proto *proto) { int ret = 0; struct nf_conntrack_l3proto *old; @@ -203,10 +237,6 @@ int nf_conntrack_l3proto_register(struct nf_conntrack_l3proto *proto) goto out_unlock; } - ret = nf_ct_l3proto_register_sysctl(proto); - if (ret < 0) - goto out_unlock; - if (proto->nlattr_tuple_size) proto->nla_size = 3 * proto->nlattr_tuple_size(); @@ -215,13 +245,32 @@ int nf_conntrack_l3proto_register(struct nf_conntrack_l3proto *proto) out_unlock: mutex_unlock(&nf_ct_proto_mutex); return ret; + } -EXPORT_SYMBOL_GPL(nf_conntrack_l3proto_register); -void nf_conntrack_l3proto_unregister(struct nf_conntrack_l3proto *proto) +int nf_conntrack_l3proto_register(struct net *net, + struct nf_conntrack_l3proto *proto) { - struct net *net; + int ret = 0; + if (net == &init_net) + ret = nf_conntrack_l3proto_register_net(proto); + + if (ret < 0) + return ret; + + if (proto->init_net) { + ret = proto->init_net(net); + if (ret < 0) + return ret; + } + return nf_ct_l3proto_register_sysctl(net, proto); +} +EXPORT_SYMBOL_GPL(nf_conntrack_l3proto_register); + +static void +nf_conntrack_l3proto_unregister_net(struct nf_conntrack_l3proto *proto) +{ BUG_ON(proto->l3proto >= AF_MAX); mutex_lock(&nf_ct_proto_mutex); @@ -230,42 +279,88 @@ void nf_conntrack_l3proto_unregister(struct nf_conntrack_l3proto *proto) ) != proto); rcu_assign_pointer(nf_ct_l3protos[proto->l3proto], &nf_conntrack_l3proto_generic); - nf_ct_l3proto_unregister_sysctl(proto); mutex_unlock(&nf_ct_proto_mutex); synchronize_rcu(); +} + +void nf_conntrack_l3proto_unregister(struct net *net, + struct nf_conntrack_l3proto *proto) +{ + if (net == &init_net) + nf_conntrack_l3proto_unregister_net(proto); + + nf_ct_l3proto_unregister_sysctl(net, proto); /* Remove all contrack entries for this protocol */ rtnl_lock(); - for_each_net(net) - nf_ct_iterate_cleanup(net, kill_l3proto, proto); + nf_ct_iterate_cleanup(net, kill_l3proto, proto); rtnl_unlock(); } EXPORT_SYMBOL_GPL(nf_conntrack_l3proto_unregister); -static int nf_ct_l4proto_register_sysctl(struct nf_conntrack_l4proto *l4proto) +static struct nf_proto_net *nf_ct_l4proto_net(struct net *net, + struct nf_conntrack_l4proto *l4proto) +{ + switch (l4proto->l4proto) { + case IPPROTO_TCP: + return (struct nf_proto_net *)&net->ct.nf_ct_proto.tcp; + case IPPROTO_UDP: + return (struct nf_proto_net *)&net->ct.nf_ct_proto.udp; + case IPPROTO_ICMP: + return (struct nf_proto_net *)&net->ct.nf_ct_proto.icmp; + case IPPROTO_ICMPV6: + return (struct nf_proto_net *)&net->ct.nf_ct_proto.icmpv6; + case 255: /* l4proto_generic */ + return (struct nf_proto_net *)&net->ct.nf_ct_proto.generic; + default: + if (l4proto->net_id) + return net_generic(net, *l4proto->net_id); + else + return NULL; + } + return NULL; +} + +static +int nf_ct_l4proto_register_sysctl(struct net *net, + struct nf_conntrack_l4proto *l4proto) { int err = 0; + struct nf_proto_net *pn = nf_ct_l4proto_net(net, l4proto); + if (pn == NULL) + return 0; #ifdef CONFIG_SYSCTL - if (l4proto->ctl_table != NULL) { - err = nf_ct_register_sysctl(l4proto->ctl_table_header, + if (pn->ctl_table != NULL) { + err = nf_ct_register_sysctl(net, + &pn->ctl_table_header, "net/netfilter", - l4proto->ctl_table, - l4proto->ctl_table_users); - if (err < 0) + pn->ctl_table, + &pn->users); + if (err < 0) { + if (!pn->users) { + kfree(pn->ctl_table); + pn->ctl_table = NULL; + } goto out; + } } #ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT - if (l4proto->ctl_compat_table != NULL) { - err = nf_ct_register_sysctl(&l4proto->ctl_compat_table_header, + if (l4proto->l3proto != AF_INET6 && pn->ctl_compat_table != NULL) { + err = nf_ct_register_sysctl(net, + &pn->ctl_compat_header, "net/ipv4/netfilter", - l4proto->ctl_compat_table, NULL); + pn->ctl_compat_table, + NULL); if (err == 0) goto out; - nf_ct_unregister_sysctl(l4proto->ctl_table_header, - l4proto->ctl_table, - l4proto->ctl_table_users); + + kfree(pn->ctl_compat_table); + pn->ctl_compat_table = NULL; + nf_ct_unregister_sysctl(&pn->ctl_table_header, + &pn->ctl_table, + &pn->users); } #endif /* CONFIG_NF_CONNTRACK_PROC_COMPAT */ out: @@ -273,25 +368,34 @@ out: return err; } -static void nf_ct_l4proto_unregister_sysctl(struct nf_conntrack_l4proto *l4proto) +static +void nf_ct_l4proto_unregister_sysctl(struct net *net, + struct nf_conntrack_l4proto *l4proto) { + struct nf_proto_net *pn = nf_ct_l4proto_net(net, l4proto); + if (pn == NULL) + return; #ifdef CONFIG_SYSCTL - if (l4proto->ctl_table_header != NULL && - *l4proto->ctl_table_header != NULL) - nf_ct_unregister_sysctl(l4proto->ctl_table_header, - l4proto->ctl_table, - l4proto->ctl_table_users); + if (pn->ctl_table_header != NULL) + nf_ct_unregister_sysctl(&pn->ctl_table_header, + &pn->ctl_table, + &pn->users); + #ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT - if (l4proto->ctl_compat_table_header != NULL) - nf_ct_unregister_sysctl(&l4proto->ctl_compat_table_header, - l4proto->ctl_compat_table, NULL); + if (l4proto->l3proto != AF_INET6 && pn->ctl_compat_header != NULL) + nf_ct_unregister_sysctl(&pn->ctl_compat_header, + &pn->ctl_compat_table, + NULL); #endif /* CONFIG_NF_CONNTRACK_PROC_COMPAT */ +#else + pn->users--; #endif /* CONFIG_SYSCTL */ } /* FIXME: Allow NULL functions and sub in pointers to generic for them. --RR */ -int nf_conntrack_l4proto_register(struct nf_conntrack_l4proto *l4proto) +static int +nf_conntrack_l4proto_register_net(struct nf_conntrack_l4proto *l4proto) { int ret = 0; @@ -333,10 +437,6 @@ int nf_conntrack_l4proto_register(struct nf_conntrack_l4proto *l4proto) goto out_unlock; } - ret = nf_ct_l4proto_register_sysctl(l4proto); - if (ret < 0) - goto out_unlock; - l4proto->nla_size = 0; if (l4proto->nlattr_size) l4proto->nla_size += l4proto->nlattr_size(); @@ -345,17 +445,34 @@ int nf_conntrack_l4proto_register(struct nf_conntrack_l4proto *l4proto) rcu_assign_pointer(nf_ct_protos[l4proto->l3proto][l4proto->l4proto], l4proto); - out_unlock: mutex_unlock(&nf_ct_proto_mutex); return ret; } -EXPORT_SYMBOL_GPL(nf_conntrack_l4proto_register); -void nf_conntrack_l4proto_unregister(struct nf_conntrack_l4proto *l4proto) +int nf_conntrack_l4proto_register(struct net *net, + struct nf_conntrack_l4proto *l4proto) { - struct net *net; + int ret = 0; + if (net == &init_net) + ret = nf_conntrack_l4proto_register_net(l4proto); + + if (ret < 0) + return ret; + + if (l4proto->init_net) + ret = l4proto->init_net(net); + + if (ret < 0) + return ret; + + return nf_ct_l4proto_register_sysctl(net, l4proto); +} +EXPORT_SYMBOL_GPL(nf_conntrack_l4proto_register); +static void +nf_conntrack_l4proto_unregister_net(struct nf_conntrack_l4proto *l4proto) +{ BUG_ON(l4proto->l3proto >= PF_MAX); mutex_lock(&nf_ct_proto_mutex); @@ -365,41 +482,53 @@ void nf_conntrack_l4proto_unregister(struct nf_conntrack_l4proto *l4proto) ) != l4proto); rcu_assign_pointer(nf_ct_protos[l4proto->l3proto][l4proto->l4proto], &nf_conntrack_l4proto_generic); - nf_ct_l4proto_unregister_sysctl(l4proto); mutex_unlock(&nf_ct_proto_mutex); synchronize_rcu(); +} + +void nf_conntrack_l4proto_unregister(struct net *net, + struct nf_conntrack_l4proto *l4proto) +{ + if (net == &init_net) + nf_conntrack_l4proto_unregister_net(l4proto); + nf_ct_l4proto_unregister_sysctl(net, l4proto); /* Remove all contrack entries for this protocol */ rtnl_lock(); - for_each_net(net) - nf_ct_iterate_cleanup(net, kill_l4proto, l4proto); + nf_ct_iterate_cleanup(net, kill_l4proto, l4proto); rtnl_unlock(); } EXPORT_SYMBOL_GPL(nf_conntrack_l4proto_unregister); -int nf_conntrack_proto_init(void) +int nf_conntrack_proto_init(struct net *net) { unsigned int i; int err; - - err = nf_ct_l4proto_register_sysctl(&nf_conntrack_l4proto_generic); + err = nf_conntrack_l4proto_generic.init_net(net); + if (err < 0) + return err; + err = nf_ct_l4proto_register_sysctl(net, + &nf_conntrack_l4proto_generic); if (err < 0) return err; - for (i = 0; i < AF_MAX; i++) - rcu_assign_pointer(nf_ct_l3protos[i], - &nf_conntrack_l3proto_generic); + if (net == &init_net) { + for (i = 0; i < AF_MAX; i++) + rcu_assign_pointer(nf_ct_l3protos[i], + &nf_conntrack_l3proto_generic); + } return 0; } -void nf_conntrack_proto_fini(void) +void nf_conntrack_proto_fini(struct net *net) { unsigned int i; - - nf_ct_l4proto_unregister_sysctl(&nf_conntrack_l4proto_generic); - - /* free l3proto protocol tables */ - for (i = 0; i < PF_MAX; i++) - kfree(nf_ct_protos[i]); + nf_ct_l4proto_unregister_sysctl(net, + &nf_conntrack_l4proto_generic); + if (net == &init_net) { + /* free l3proto protocol tables */ + for (i = 0; i < PF_MAX; i++) + kfree(nf_ct_protos[i]); + } } diff --git a/net/netfilter/nf_conntrack_proto_dccp.c b/net/netfilter/nf_conntrack_proto_dccp.c index ef706a485be1..c33f76af913f 100644 --- a/net/netfilter/nf_conntrack_proto_dccp.c +++ b/net/netfilter/nf_conntrack_proto_dccp.c @@ -387,12 +387,9 @@ dccp_state_table[CT_DCCP_ROLE_MAX + 1][DCCP_PKT_SYNCACK + 1][CT_DCCP_MAX + 1] = /* this module per-net specifics */ static int dccp_net_id __read_mostly; struct dccp_net { + struct nf_proto_net np; int dccp_loose; unsigned int dccp_timeout[CT_DCCP_MAX + 1]; -#ifdef CONFIG_SYSCTL - struct ctl_table_header *sysctl_header; - struct ctl_table *sysctl_table; -#endif }; static inline struct dccp_net *dccp_pernet(struct net *net) @@ -715,9 +712,10 @@ static int dccp_nlattr_size(void) #include <linux/netfilter/nfnetlink.h> #include <linux/netfilter/nfnetlink_cttimeout.h> -static int dccp_timeout_nlattr_to_obj(struct nlattr *tb[], void *data) +static int dccp_timeout_nlattr_to_obj(struct nlattr *tb[], + struct net *net, void *data) { - struct dccp_net *dn = dccp_pernet(&init_net); + struct dccp_net *dn = dccp_pernet(net); unsigned int *timeouts = data; int i; @@ -817,6 +815,45 @@ static struct ctl_table dccp_sysctl_table[] = { }; #endif /* CONFIG_SYSCTL */ +static int dccp_init_net(struct net *net) +{ + struct dccp_net *dn = dccp_pernet(net); + struct nf_proto_net *pn = (struct nf_proto_net *)dn; + +#ifdef CONFIG_SYSCTL + if (!pn->ctl_table) { +#else + if (!pn->users++) { +#endif + /* default values */ + dn->dccp_loose = 1; + dn->dccp_timeout[CT_DCCP_REQUEST] = 2 * DCCP_MSL; + dn->dccp_timeout[CT_DCCP_RESPOND] = 4 * DCCP_MSL; + dn->dccp_timeout[CT_DCCP_PARTOPEN] = 4 * DCCP_MSL; + dn->dccp_timeout[CT_DCCP_OPEN] = 12 * 3600 * HZ; + dn->dccp_timeout[CT_DCCP_CLOSEREQ] = 64 * HZ; + dn->dccp_timeout[CT_DCCP_CLOSING] = 64 * HZ; + dn->dccp_timeout[CT_DCCP_TIMEWAIT] = 2 * DCCP_MSL; +#ifdef CONFIG_SYSCTL + pn->ctl_table = kmemdup(dccp_sysctl_table, + sizeof(dccp_sysctl_table), + GFP_KERNEL); + if (!pn->ctl_table) + return -ENOMEM; + + pn->ctl_table[0].data = &dn->dccp_timeout[CT_DCCP_REQUEST]; + pn->ctl_table[1].data = &dn->dccp_timeout[CT_DCCP_RESPOND]; + pn->ctl_table[2].data = &dn->dccp_timeout[CT_DCCP_PARTOPEN]; + pn->ctl_table[3].data = &dn->dccp_timeout[CT_DCCP_OPEN]; + pn->ctl_table[4].data = &dn->dccp_timeout[CT_DCCP_CLOSEREQ]; + pn->ctl_table[5].data = &dn->dccp_timeout[CT_DCCP_CLOSING]; + pn->ctl_table[6].data = &dn->dccp_timeout[CT_DCCP_TIMEWAIT]; + pn->ctl_table[7].data = &dn->dccp_loose; +#endif + } + return 0; +} + static struct nf_conntrack_l4proto dccp_proto4 __read_mostly = { .l3proto = AF_INET, .l4proto = IPPROTO_DCCP, @@ -847,6 +884,8 @@ static struct nf_conntrack_l4proto dccp_proto4 __read_mostly = { .nla_policy = dccp_timeout_nla_policy, }, #endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ + .net_id = &dccp_net_id, + .init_net = dccp_init_net, }; static struct nf_conntrack_l4proto dccp_proto6 __read_mostly = { @@ -879,55 +918,39 @@ static struct nf_conntrack_l4proto dccp_proto6 __read_mostly = { .nla_policy = dccp_timeout_nla_policy, }, #endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ + .net_id = &dccp_net_id, + .init_net = dccp_init_net, }; static __net_init int dccp_net_init(struct net *net) { - struct dccp_net *dn = dccp_pernet(net); - - /* default values */ - dn->dccp_loose = 1; - dn->dccp_timeout[CT_DCCP_REQUEST] = 2 * DCCP_MSL; - dn->dccp_timeout[CT_DCCP_RESPOND] = 4 * DCCP_MSL; - dn->dccp_timeout[CT_DCCP_PARTOPEN] = 4 * DCCP_MSL; - dn->dccp_timeout[CT_DCCP_OPEN] = 12 * 3600 * HZ; - dn->dccp_timeout[CT_DCCP_CLOSEREQ] = 64 * HZ; - dn->dccp_timeout[CT_DCCP_CLOSING] = 64 * HZ; - dn->dccp_timeout[CT_DCCP_TIMEWAIT] = 2 * DCCP_MSL; - -#ifdef CONFIG_SYSCTL - dn->sysctl_table = kmemdup(dccp_sysctl_table, - sizeof(dccp_sysctl_table), GFP_KERNEL); - if (!dn->sysctl_table) - return -ENOMEM; - - dn->sysctl_table[0].data = &dn->dccp_timeout[CT_DCCP_REQUEST]; - dn->sysctl_table[1].data = &dn->dccp_timeout[CT_DCCP_RESPOND]; - dn->sysctl_table[2].data = &dn->dccp_timeout[CT_DCCP_PARTOPEN]; - dn->sysctl_table[3].data = &dn->dccp_timeout[CT_DCCP_OPEN]; - dn->sysctl_table[4].data = &dn->dccp_timeout[CT_DCCP_CLOSEREQ]; - dn->sysctl_table[5].data = &dn->dccp_timeout[CT_DCCP_CLOSING]; - dn->sysctl_table[6].data = &dn->dccp_timeout[CT_DCCP_TIMEWAIT]; - dn->sysctl_table[7].data = &dn->dccp_loose; - - dn->sysctl_header = register_net_sysctl(net, "net/netfilter", - dn->sysctl_table); - if (!dn->sysctl_header) { - kfree(dn->sysctl_table); - return -ENOMEM; + int ret = 0; + ret = nf_conntrack_l4proto_register(net, + &dccp_proto4); + if (ret < 0) { + pr_err("nf_conntrack_l4proto_dccp4 :protocol register failed.\n"); + goto out; + } + ret = nf_conntrack_l4proto_register(net, + &dccp_proto6); + if (ret < 0) { + pr_err("nf_conntrack_l4proto_dccp6 :protocol register failed.\n"); + goto cleanup_dccp4; } -#endif - return 0; +cleanup_dccp4: + nf_conntrack_l4proto_unregister(net, + &dccp_proto4); +out: + return ret; } static __net_exit void dccp_net_exit(struct net *net) { - struct dccp_net *dn = dccp_pernet(net); -#ifdef CONFIG_SYSCTL - unregister_net_sysctl_table(dn->sysctl_header); - kfree(dn->sysctl_table); -#endif + nf_conntrack_l4proto_unregister(net, + &dccp_proto6); + nf_conntrack_l4proto_unregister(net, + &dccp_proto4); } static struct pernet_operations dccp_net_ops = { @@ -939,34 +962,12 @@ static struct pernet_operations dccp_net_ops = { static int __init nf_conntrack_proto_dccp_init(void) { - int err; - - err = register_pernet_subsys(&dccp_net_ops); - if (err < 0) - goto err1; - - err = nf_conntrack_l4proto_register(&dccp_proto4); - if (err < 0) - goto err2; - - err = nf_conntrack_l4proto_register(&dccp_proto6); - if (err < 0) - goto err3; - return 0; - -err3: - nf_conntrack_l4proto_unregister(&dccp_proto4); -err2: - unregister_pernet_subsys(&dccp_net_ops); -err1: - return err; + return register_pernet_subsys(&dccp_net_ops); } static void __exit nf_conntrack_proto_dccp_fini(void) { unregister_pernet_subsys(&dccp_net_ops); - nf_conntrack_l4proto_unregister(&dccp_proto6); - nf_conntrack_l4proto_unregister(&dccp_proto4); } module_init(nf_conntrack_proto_dccp_init); diff --git a/net/netfilter/nf_conntrack_proto_generic.c b/net/netfilter/nf_conntrack_proto_generic.c index d8923d54b358..bb0e74fe0fae 100644 --- a/net/netfilter/nf_conntrack_proto_generic.c +++ b/net/netfilter/nf_conntrack_proto_generic.c @@ -14,6 +14,11 @@ static unsigned int nf_ct_generic_timeout __read_mostly = 600*HZ; +static inline struct nf_generic_net *generic_pernet(struct net *net) +{ + return &net->ct.nf_ct_proto.generic; +} + static bool generic_pkt_to_tuple(const struct sk_buff *skb, unsigned int dataoff, struct nf_conntrack_tuple *tuple) @@ -42,7 +47,7 @@ static int generic_print_tuple(struct seq_file *s, static unsigned int *generic_get_timeouts(struct net *net) { - return &nf_ct_generic_timeout; + return &(generic_pernet(net)->timeout); } /* Returns verdict for packet, or -1 for invalid. */ @@ -70,16 +75,18 @@ static bool generic_new(struct nf_conn *ct, const struct sk_buff *skb, #include <linux/netfilter/nfnetlink.h> #include <linux/netfilter/nfnetlink_cttimeout.h> -static int generic_timeout_nlattr_to_obj(struct nlattr *tb[], void *data) +static int generic_timeout_nlattr_to_obj(struct nlattr *tb[], + struct net *net, void *data) { unsigned int *timeout = data; + struct nf_generic_net *gn = generic_pernet(net); if (tb[CTA_TIMEOUT_GENERIC_TIMEOUT]) *timeout = ntohl(nla_get_be32(tb[CTA_TIMEOUT_GENERIC_TIMEOUT])) * HZ; else { /* Set default generic timeout. */ - *timeout = nf_ct_generic_timeout; + *timeout = gn->timeout; } return 0; @@ -106,11 +113,9 @@ generic_timeout_nla_policy[CTA_TIMEOUT_GENERIC_MAX+1] = { #endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ #ifdef CONFIG_SYSCTL -static struct ctl_table_header *generic_sysctl_header; static struct ctl_table generic_sysctl_table[] = { { .procname = "nf_conntrack_generic_timeout", - .data = &nf_ct_generic_timeout, .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, @@ -121,7 +126,6 @@ static struct ctl_table generic_sysctl_table[] = { static struct ctl_table generic_compat_sysctl_table[] = { { .procname = "ip_conntrack_generic_timeout", - .data = &nf_ct_generic_timeout, .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, @@ -131,6 +135,34 @@ static struct ctl_table generic_compat_sysctl_table[] = { #endif /* CONFIG_NF_CONNTRACK_PROC_COMPAT */ #endif /* CONFIG_SYSCTL */ +static int generic_init_net(struct net *net) +{ + struct nf_generic_net *gn = generic_pernet(net); + struct nf_proto_net *pn = (struct nf_proto_net *)gn; + gn->timeout = nf_ct_generic_timeout; +#ifdef CONFIG_SYSCTL + pn->ctl_table = kmemdup(generic_sysctl_table, + sizeof(generic_sysctl_table), + GFP_KERNEL); + if (!pn->ctl_table) + return -ENOMEM; + pn->ctl_table[0].data = &gn->timeout; + +#ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT + pn->ctl_compat_table = kmemdup(generic_compat_sysctl_table, + sizeof(generic_compat_sysctl_table), + GFP_KERNEL); + if (!pn->ctl_compat_table) { + kfree(pn->ctl_table); + pn->ctl_table = NULL; + return -ENOMEM; + } + pn->ctl_compat_table[0].data = &gn->timeout; +#endif +#endif + return 0; +} + struct nf_conntrack_l4proto nf_conntrack_l4proto_generic __read_mostly = { .l3proto = PF_UNSPEC, @@ -151,11 +183,5 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_generic __read_mostly = .nla_policy = generic_timeout_nla_policy, }, #endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ -#ifdef CONFIG_SYSCTL - .ctl_table_header = &generic_sysctl_header, - .ctl_table = generic_sysctl_table, -#ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT - .ctl_compat_table = generic_compat_sysctl_table, -#endif -#endif + .init_net = generic_init_net, }; diff --git a/net/netfilter/nf_conntrack_proto_gre.c b/net/netfilter/nf_conntrack_proto_gre.c index 4bf6b4e4b776..25ba5a2f5edc 100644 --- a/net/netfilter/nf_conntrack_proto_gre.c +++ b/net/netfilter/nf_conntrack_proto_gre.c @@ -54,13 +54,20 @@ static unsigned int gre_timeouts[GRE_CT_MAX] = { static int proto_gre_net_id __read_mostly; struct netns_proto_gre { + struct nf_proto_net nf; rwlock_t keymap_lock; struct list_head keymap_list; + unsigned int gre_timeouts[GRE_CT_MAX]; }; +static inline struct netns_proto_gre *gre_pernet(struct net *net) +{ + return net_generic(net, proto_gre_net_id); +} + void nf_ct_gre_keymap_flush(struct net *net) { - struct netns_proto_gre *net_gre = net_generic(net, proto_gre_net_id); + struct netns_proto_gre *net_gre = gre_pernet(net); struct nf_ct_gre_keymap *km, *tmp; write_lock_bh(&net_gre->keymap_lock); @@ -85,7 +92,7 @@ static inline int gre_key_cmpfn(const struct nf_ct_gre_keymap *km, /* look up the source key for a given tuple */ static __be16 gre_keymap_lookup(struct net *net, struct nf_conntrack_tuple *t) { - struct netns_proto_gre *net_gre = net_generic(net, proto_gre_net_id); + struct netns_proto_gre *net_gre = gre_pernet(net); struct nf_ct_gre_keymap *km; __be16 key = 0; @@ -109,7 +116,7 @@ int nf_ct_gre_keymap_add(struct nf_conn *ct, enum ip_conntrack_dir dir, struct nf_conntrack_tuple *t) { struct net *net = nf_ct_net(ct); - struct netns_proto_gre *net_gre = net_generic(net, proto_gre_net_id); + struct netns_proto_gre *net_gre = gre_pernet(net); struct nf_conn_help *help = nfct_help(ct); struct nf_ct_gre_keymap **kmp, *km; @@ -150,7 +157,7 @@ EXPORT_SYMBOL_GPL(nf_ct_gre_keymap_add); void nf_ct_gre_keymap_destroy(struct nf_conn *ct) { struct net *net = nf_ct_net(ct); - struct netns_proto_gre *net_gre = net_generic(net, proto_gre_net_id); + struct netns_proto_gre *net_gre = gre_pernet(net); struct nf_conn_help *help = nfct_help(ct); enum ip_conntrack_dir dir; @@ -237,7 +244,7 @@ static int gre_print_conntrack(struct seq_file *s, struct nf_conn *ct) static unsigned int *gre_get_timeouts(struct net *net) { - return gre_timeouts; + return gre_pernet(net)->gre_timeouts; } /* Returns verdict for packet, and may modify conntrack */ @@ -297,13 +304,15 @@ static void gre_destroy(struct nf_conn *ct) #include <linux/netfilter/nfnetlink.h> #include <linux/netfilter/nfnetlink_cttimeout.h> -static int gre_timeout_nlattr_to_obj(struct nlattr *tb[], void *data) +static int gre_timeout_nlattr_to_obj(struct nlattr *tb[], + struct net *net, void *data) { unsigned int *timeouts = data; + struct netns_proto_gre *net_gre = gre_pernet(net); /* set default timeouts for GRE. */ - timeouts[GRE_CT_UNREPLIED] = gre_timeouts[GRE_CT_UNREPLIED]; - timeouts[GRE_CT_REPLIED] = gre_timeouts[GRE_CT_REPLIED]; + timeouts[GRE_CT_UNREPLIED] = net_gre->gre_timeouts[GRE_CT_UNREPLIED]; + timeouts[GRE_CT_REPLIED] = net_gre->gre_timeouts[GRE_CT_REPLIED]; if (tb[CTA_TIMEOUT_GRE_UNREPLIED]) { timeouts[GRE_CT_UNREPLIED] = @@ -339,6 +348,19 @@ gre_timeout_nla_policy[CTA_TIMEOUT_GRE_MAX+1] = { }; #endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ +static int gre_init_net(struct net *net) +{ + struct netns_proto_gre *net_gre = gre_pernet(net); + int i; + + rwlock_init(&net_gre->keymap_lock); + INIT_LIST_HEAD(&net_gre->keymap_list); + for (i = 0; i < GRE_CT_MAX; i++) + net_gre->gre_timeouts[i] = gre_timeouts[i]; + + return 0; +} + /* protocol helper struct */ static struct nf_conntrack_l4proto nf_conntrack_l4proto_gre4 __read_mostly = { .l3proto = AF_INET, @@ -368,20 +390,22 @@ static struct nf_conntrack_l4proto nf_conntrack_l4proto_gre4 __read_mostly = { .nla_policy = gre_timeout_nla_policy, }, #endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ + .net_id = &proto_gre_net_id, + .init_net = gre_init_net, }; static int proto_gre_net_init(struct net *net) { - struct netns_proto_gre *net_gre = net_generic(net, proto_gre_net_id); - - rwlock_init(&net_gre->keymap_lock); - INIT_LIST_HEAD(&net_gre->keymap_list); - - return 0; + int ret = 0; + ret = nf_conntrack_l4proto_register(net, &nf_conntrack_l4proto_gre4); + if (ret < 0) + pr_err("nf_conntrack_l4proto_gre4 :protocol register failed.\n"); + return ret; } static void proto_gre_net_exit(struct net *net) { + nf_conntrack_l4proto_unregister(net, &nf_conntrack_l4proto_gre4); nf_ct_gre_keymap_flush(net); } @@ -394,20 +418,11 @@ static struct pernet_operations proto_gre_net_ops = { static int __init nf_ct_proto_gre_init(void) { - int rv; - - rv = nf_conntrack_l4proto_register(&nf_conntrack_l4proto_gre4); - if (rv < 0) - return rv; - rv = register_pernet_subsys(&proto_gre_net_ops); - if (rv < 0) - nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_gre4); - return rv; + return register_pernet_subsys(&proto_gre_net_ops); } static void __exit nf_ct_proto_gre_fini(void) { - nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_gre4); unregister_pernet_subsys(&proto_gre_net_ops); } diff --git a/net/netfilter/nf_conntrack_proto_sctp.c b/net/netfilter/nf_conntrack_proto_sctp.c index 996db2fa21f7..8fb0582ad397 100644 --- a/net/netfilter/nf_conntrack_proto_sctp.c +++ b/net/netfilter/nf_conntrack_proto_sctp.c @@ -127,6 +127,17 @@ static const u8 sctp_conntracks[2][9][SCTP_CONNTRACK_MAX] = { } }; +static int sctp_net_id __read_mostly; +struct sctp_net { + struct nf_proto_net pn; + unsigned int timeouts[SCTP_CONNTRACK_MAX]; +}; + +static inline struct sctp_net *sctp_pernet(struct net *net) +{ + return net_generic(net, sctp_net_id); +} + static bool sctp_pkt_to_tuple(const struct sk_buff *skb, unsigned int dataoff, struct nf_conntrack_tuple *tuple) { @@ -281,7 +292,7 @@ static int sctp_new_state(enum ip_conntrack_dir dir, static unsigned int *sctp_get_timeouts(struct net *net) { - return sctp_timeouts; + return sctp_pernet(net)->timeouts; } /* Returns verdict for packet, or -NF_ACCEPT for invalid. */ @@ -551,14 +562,16 @@ static int sctp_nlattr_size(void) #include <linux/netfilter/nfnetlink.h> #include <linux/netfilter/nfnetlink_cttimeout.h> -static int sctp_timeout_nlattr_to_obj(struct nlattr *tb[], void *data) +static int sctp_timeout_nlattr_to_obj(struct nlattr *tb[], + struct net *net, void *data) { unsigned int *timeouts = data; + struct sctp_net *sn = sctp_pernet(net); int i; /* set default SCTP timeouts. */ for (i=0; i<SCTP_CONNTRACK_MAX; i++) - timeouts[i] = sctp_timeouts[i]; + timeouts[i] = sn->timeouts[i]; /* there's a 1:1 mapping between attributes and protocol states. */ for (i=CTA_TIMEOUT_SCTP_UNSPEC+1; i<CTA_TIMEOUT_SCTP_MAX+1; i++) { @@ -599,54 +612,45 @@ sctp_timeout_nla_policy[CTA_TIMEOUT_SCTP_MAX+1] = { #ifdef CONFIG_SYSCTL -static unsigned int sctp_sysctl_table_users; -static struct ctl_table_header *sctp_sysctl_header; static struct ctl_table sctp_sysctl_table[] = { { .procname = "nf_conntrack_sctp_timeout_closed", - .data = &sctp_timeouts[SCTP_CONNTRACK_CLOSED], .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, }, { .procname = "nf_conntrack_sctp_timeout_cookie_wait", - .data = &sctp_timeouts[SCTP_CONNTRACK_COOKIE_WAIT], .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, }, { .procname = "nf_conntrack_sctp_timeout_cookie_echoed", - .data = &sctp_timeouts[SCTP_CONNTRACK_COOKIE_ECHOED], .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, }, { .procname = "nf_conntrack_sctp_timeout_established", - .data = &sctp_timeouts[SCTP_CONNTRACK_ESTABLISHED], .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, }, { .procname = "nf_conntrack_sctp_timeout_shutdown_sent", - .data = &sctp_timeouts[SCTP_CONNTRACK_SHUTDOWN_SENT], .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, }, { .procname = "nf_conntrack_sctp_timeout_shutdown_recd", - .data = &sctp_timeouts[SCTP_CONNTRACK_SHUTDOWN_RECD], .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, }, { .procname = "nf_conntrack_sctp_timeout_shutdown_ack_sent", - .data = &sctp_timeouts[SCTP_CONNTRACK_SHUTDOWN_ACK_SENT], .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, @@ -658,49 +662,42 @@ static struct ctl_table sctp_sysctl_table[] = { static struct ctl_table sctp_compat_sysctl_table[] = { { .procname = "ip_conntrack_sctp_timeout_closed", - .data = &sctp_timeouts[SCTP_CONNTRACK_CLOSED], .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, }, { .procname = "ip_conntrack_sctp_timeout_cookie_wait", - .data = &sctp_timeouts[SCTP_CONNTRACK_COOKIE_WAIT], .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, }, { .procname = "ip_conntrack_sctp_timeout_cookie_echoed", - .data = &sctp_timeouts[SCTP_CONNTRACK_COOKIE_ECHOED], .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, }, { .procname = "ip_conntrack_sctp_timeout_established", - .data = &sctp_timeouts[SCTP_CONNTRACK_ESTABLISHED], .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, }, { .procname = "ip_conntrack_sctp_timeout_shutdown_sent", - .data = &sctp_timeouts[SCTP_CONNTRACK_SHUTDOWN_SENT], .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, }, { .procname = "ip_conntrack_sctp_timeout_shutdown_recd", - .data = &sctp_timeouts[SCTP_CONNTRACK_SHUTDOWN_RECD], .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, }, { .procname = "ip_conntrack_sctp_timeout_shutdown_ack_sent", - .data = &sctp_timeouts[SCTP_CONNTRACK_SHUTDOWN_ACK_SENT], .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, @@ -710,6 +707,101 @@ static struct ctl_table sctp_compat_sysctl_table[] = { #endif /* CONFIG_NF_CONNTRACK_PROC_COMPAT */ #endif +static void sctp_init_net_data(struct sctp_net *sn) +{ + int i; +#ifdef CONFIG_SYSCTL + if (!sn->pn.ctl_table) { +#else + if (!sn->pn.users++) { +#endif + for (i = 0; i < SCTP_CONNTRACK_MAX; i++) + sn->timeouts[i] = sctp_timeouts[i]; + } +} + +static int sctp_kmemdup_sysctl_table(struct nf_proto_net *pn) +{ +#ifdef CONFIG_SYSCTL + struct sctp_net *sn = (struct sctp_net *)pn; + if (pn->ctl_table) + return 0; + + pn->ctl_table = kmemdup(sctp_sysctl_table, + sizeof(sctp_sysctl_table), + GFP_KERNEL); + if (!pn->ctl_table) + return -ENOMEM; + + pn->ctl_table[0].data = &sn->timeouts[SCTP_CONNTRACK_CLOSED]; + pn->ctl_table[1].data = &sn->timeouts[SCTP_CONNTRACK_COOKIE_WAIT]; + pn->ctl_table[2].data = &sn->timeouts[SCTP_CONNTRACK_COOKIE_ECHOED]; + pn->ctl_table[3].data = &sn->timeouts[SCTP_CONNTRACK_ESTABLISHED]; + pn->ctl_table[4].data = &sn->timeouts[SCTP_CONNTRACK_SHUTDOWN_SENT]; + pn->ctl_table[5].data = &sn->timeouts[SCTP_CONNTRACK_SHUTDOWN_RECD]; + pn->ctl_table[6].data = &sn->timeouts[SCTP_CONNTRACK_SHUTDOWN_ACK_SENT]; +#endif + return 0; +} + +static int sctp_kmemdup_compat_sysctl_table(struct nf_proto_net *pn) +{ +#ifdef CONFIG_SYSCTL +#ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT + struct sctp_net *sn = (struct sctp_net *)pn; + pn->ctl_compat_table = kmemdup(sctp_compat_sysctl_table, + sizeof(sctp_compat_sysctl_table), + GFP_KERNEL); + if (!pn->ctl_compat_table) + return -ENOMEM; + + pn->ctl_compat_table[0].data = &sn->timeouts[SCTP_CONNTRACK_CLOSED]; + pn->ctl_compat_table[1].data = &sn->timeouts[SCTP_CONNTRACK_COOKIE_WAIT]; + pn->ctl_compat_table[2].data = &sn->timeouts[SCTP_CONNTRACK_COOKIE_ECHOED]; + pn->ctl_compat_table[3].data = &sn->timeouts[SCTP_CONNTRACK_ESTABLISHED]; + pn->ctl_compat_table[4].data = &sn->timeouts[SCTP_CONNTRACK_SHUTDOWN_SENT]; + pn->ctl_compat_table[5].data = &sn->timeouts[SCTP_CONNTRACK_SHUTDOWN_RECD]; + pn->ctl_compat_table[6].data = &sn->timeouts[SCTP_CONNTRACK_SHUTDOWN_ACK_SENT]; +#endif +#endif + return 0; +} + +static int sctpv4_init_net(struct net *net) +{ + int ret; + struct sctp_net *sn = sctp_pernet(net); + struct nf_proto_net *pn = (struct nf_proto_net *)sn; + + sctp_init_net_data(sn); + + ret = sctp_kmemdup_compat_sysctl_table(pn); + if (ret < 0) + return ret; + + ret = sctp_kmemdup_sysctl_table(pn); + +#ifdef CONFIG_SYSCTL +#ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT + if (ret < 0) { + + kfree(pn->ctl_compat_table); + pn->ctl_compat_table = NULL; + } +#endif +#endif + return ret; +} + +static int sctpv6_init_net(struct net *net) +{ + struct sctp_net *sn = sctp_pernet(net); + struct nf_proto_net *pn = (struct nf_proto_net *)sn; + + sctp_init_net_data(sn); + return sctp_kmemdup_sysctl_table(pn); +} + static struct nf_conntrack_l4proto nf_conntrack_l4proto_sctp4 __read_mostly = { .l3proto = PF_INET, .l4proto = IPPROTO_SCTP, @@ -740,14 +832,8 @@ static struct nf_conntrack_l4proto nf_conntrack_l4proto_sctp4 __read_mostly = { .nla_policy = sctp_timeout_nla_policy, }, #endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ -#ifdef CONFIG_SYSCTL - .ctl_table_users = &sctp_sysctl_table_users, - .ctl_table_header = &sctp_sysctl_header, - .ctl_table = sctp_sysctl_table, -#ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT - .ctl_compat_table = sctp_compat_sysctl_table, -#endif -#endif + .net_id = &sctp_net_id, + .init_net = sctpv4_init_net, }; static struct nf_conntrack_l4proto nf_conntrack_l4proto_sctp6 __read_mostly = { @@ -780,40 +866,58 @@ static struct nf_conntrack_l4proto nf_conntrack_l4proto_sctp6 __read_mostly = { }, #endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ #endif -#ifdef CONFIG_SYSCTL - .ctl_table_users = &sctp_sysctl_table_users, - .ctl_table_header = &sctp_sysctl_header, - .ctl_table = sctp_sysctl_table, -#endif + .net_id = &sctp_net_id, + .init_net = sctpv6_init_net, }; -static int __init nf_conntrack_proto_sctp_init(void) +static int sctp_net_init(struct net *net) { - int ret; + int ret = 0; - ret = nf_conntrack_l4proto_register(&nf_conntrack_l4proto_sctp4); - if (ret) { - pr_err("nf_conntrack_l4proto_sctp4: protocol register failed\n"); + ret = nf_conntrack_l4proto_register(net, + &nf_conntrack_l4proto_sctp4); + if (ret < 0) { + pr_err("nf_conntrack_l4proto_sctp4 :protocol register failed.\n"); goto out; } - ret = nf_conntrack_l4proto_register(&nf_conntrack_l4proto_sctp6); - if (ret) { - pr_err("nf_conntrack_l4proto_sctp6: protocol register failed\n"); + ret = nf_conntrack_l4proto_register(net, + &nf_conntrack_l4proto_sctp6); + if (ret < 0) { + pr_err("nf_conntrack_l4proto_sctp6 :protocol register failed.\n"); goto cleanup_sctp4; } + return 0; +cleanup_sctp4: + nf_conntrack_l4proto_unregister(net, + &nf_conntrack_l4proto_sctp4); +out: return ret; +} - cleanup_sctp4: - nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_sctp4); - out: - return ret; +static void sctp_net_exit(struct net *net) +{ + nf_conntrack_l4proto_unregister(net, + &nf_conntrack_l4proto_sctp6); + nf_conntrack_l4proto_unregister(net, + &nf_conntrack_l4proto_sctp4); +} + +static struct pernet_operations sctp_net_ops = { + .init = sctp_net_init, + .exit = sctp_net_exit, + .id = &sctp_net_id, + .size = sizeof(struct sctp_net), +}; + +static int __init nf_conntrack_proto_sctp_init(void) +{ + return register_pernet_subsys(&sctp_net_ops); } static void __exit nf_conntrack_proto_sctp_fini(void) { - nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_sctp6); - nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_sctp4); + unregister_pernet_subsys(&sctp_net_ops); } module_init(nf_conntrack_proto_sctp_init); diff --git a/net/netfilter/nf_conntrack_proto_tcp.c b/net/netfilter/nf_conntrack_proto_tcp.c index 21ff1a99f534..99caa1304477 100644 --- a/net/netfilter/nf_conntrack_proto_tcp.c +++ b/net/netfilter/nf_conntrack_proto_tcp.c @@ -270,6 +270,11 @@ static const u8 tcp_conntracks[2][6][TCP_CONNTRACK_MAX] = { } }; +static inline struct nf_tcp_net *tcp_pernet(struct net *net) +{ + return &net->ct.nf_ct_proto.tcp; +} + static bool tcp_pkt_to_tuple(const struct sk_buff *skb, unsigned int dataoff, struct nf_conntrack_tuple *tuple) { @@ -516,6 +521,7 @@ static bool tcp_in_window(const struct nf_conn *ct, u_int8_t pf) { struct net *net = nf_ct_net(ct); + struct nf_tcp_net *tn = tcp_pernet(net); struct ip_ct_tcp_state *sender = &state->seen[dir]; struct ip_ct_tcp_state *receiver = &state->seen[!dir]; const struct nf_conntrack_tuple *tuple = &ct->tuplehash[dir].tuple; @@ -720,7 +726,7 @@ static bool tcp_in_window(const struct nf_conn *ct, } else { res = false; if (sender->flags & IP_CT_TCP_FLAG_BE_LIBERAL || - nf_ct_tcp_be_liberal) + tn->tcp_be_liberal) res = true; if (!res && LOG_INVALID(net, IPPROTO_TCP)) nf_log_packet(pf, 0, skb, NULL, NULL, NULL, @@ -828,6 +834,7 @@ static int tcp_packet(struct nf_conn *ct, unsigned int *timeouts) { struct net *net = nf_ct_net(ct); + struct nf_tcp_net *tn = tcp_pernet(net); struct nf_conntrack_tuple *tuple; enum tcp_conntrack new_state, old_state; enum ip_conntrack_dir dir; @@ -1020,7 +1027,7 @@ static int tcp_packet(struct nf_conn *ct, && new_state == TCP_CONNTRACK_FIN_WAIT) ct->proto.tcp.seen[dir].flags |= IP_CT_TCP_FLAG_CLOSE_INIT; - if (ct->proto.tcp.retrans >= nf_ct_tcp_max_retrans && + if (ct->proto.tcp.retrans >= tn->tcp_max_retrans && timeouts[new_state] > timeouts[TCP_CONNTRACK_RETRANS]) timeout = timeouts[TCP_CONNTRACK_RETRANS]; else if ((ct->proto.tcp.seen[0].flags | ct->proto.tcp.seen[1].flags) & @@ -1065,6 +1072,8 @@ static bool tcp_new(struct nf_conn *ct, const struct sk_buff *skb, enum tcp_conntrack new_state; const struct tcphdr *th; struct tcphdr _tcph; + struct net *net = nf_ct_net(ct); + struct nf_tcp_net *tn = tcp_pernet(net); const struct ip_ct_tcp_state *sender = &ct->proto.tcp.seen[0]; const struct ip_ct_tcp_state *receiver = &ct->proto.tcp.seen[1]; @@ -1093,7 +1102,7 @@ static bool tcp_new(struct nf_conn *ct, const struct sk_buff *skb, ct->proto.tcp.seen[0].td_end; tcp_options(skb, dataoff, th, &ct->proto.tcp.seen[0]); - } else if (nf_ct_tcp_loose == 0) { + } else if (tn->tcp_loose == 0) { /* Don't try to pick up connections. */ return false; } else { @@ -1251,14 +1260,16 @@ static int tcp_nlattr_tuple_size(void) #include <linux/netfilter/nfnetlink.h> #include <linux/netfilter/nfnetlink_cttimeout.h> -static int tcp_timeout_nlattr_to_obj(struct nlattr *tb[], void *data) +static int tcp_timeout_nlattr_to_obj(struct nlattr *tb[], + struct net *net, void *data) { unsigned int *timeouts = data; + struct nf_tcp_net *tn = tcp_pernet(net); int i; /* set default TCP timeouts. */ for (i=0; i<TCP_CONNTRACK_TIMEOUT_MAX; i++) - timeouts[i] = tcp_timeouts[i]; + timeouts[i] = tn->timeouts[i]; if (tb[CTA_TIMEOUT_TCP_SYN_SENT]) { timeouts[TCP_CONNTRACK_SYN_SENT] = @@ -1355,96 +1366,81 @@ static const struct nla_policy tcp_timeout_nla_policy[CTA_TIMEOUT_TCP_MAX+1] = { #endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ #ifdef CONFIG_SYSCTL -static unsigned int tcp_sysctl_table_users; -static struct ctl_table_header *tcp_sysctl_header; static struct ctl_table tcp_sysctl_table[] = { { .procname = "nf_conntrack_tcp_timeout_syn_sent", - .data = &tcp_timeouts[TCP_CONNTRACK_SYN_SENT], .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, }, { .procname = "nf_conntrack_tcp_timeout_syn_recv", - .data = &tcp_timeouts[TCP_CONNTRACK_SYN_RECV], .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, }, { .procname = "nf_conntrack_tcp_timeout_established", - .data = &tcp_timeouts[TCP_CONNTRACK_ESTABLISHED], .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, }, { .procname = "nf_conntrack_tcp_timeout_fin_wait", - .data = &tcp_timeouts[TCP_CONNTRACK_FIN_WAIT], .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, }, { .procname = "nf_conntrack_tcp_timeout_close_wait", - .data = &tcp_timeouts[TCP_CONNTRACK_CLOSE_WAIT], .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, }, { .procname = "nf_conntrack_tcp_timeout_last_ack", - .data = &tcp_timeouts[TCP_CONNTRACK_LAST_ACK], .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, }, { .procname = "nf_conntrack_tcp_timeout_time_wait", - .data = &tcp_timeouts[TCP_CONNTRACK_TIME_WAIT], .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, }, { .procname = "nf_conntrack_tcp_timeout_close", - .data = &tcp_timeouts[TCP_CONNTRACK_CLOSE], .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, }, { .procname = "nf_conntrack_tcp_timeout_max_retrans", - .data = &tcp_timeouts[TCP_CONNTRACK_RETRANS], .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, }, { .procname = "nf_conntrack_tcp_timeout_unacknowledged", - .data = &tcp_timeouts[TCP_CONNTRACK_UNACK], .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, }, { .procname = "nf_conntrack_tcp_loose", - .data = &nf_ct_tcp_loose, .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec, }, { .procname = "nf_conntrack_tcp_be_liberal", - .data = &nf_ct_tcp_be_liberal, .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec, }, { .procname = "nf_conntrack_tcp_max_retrans", - .data = &nf_ct_tcp_max_retrans, .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec, @@ -1456,91 +1452,78 @@ static struct ctl_table tcp_sysctl_table[] = { static struct ctl_table tcp_compat_sysctl_table[] = { { .procname = "ip_conntrack_tcp_timeout_syn_sent", - .data = &tcp_timeouts[TCP_CONNTRACK_SYN_SENT], .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, }, { .procname = "ip_conntrack_tcp_timeout_syn_sent2", - .data = &tcp_timeouts[TCP_CONNTRACK_SYN_SENT2], .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, }, { .procname = "ip_conntrack_tcp_timeout_syn_recv", - .data = &tcp_timeouts[TCP_CONNTRACK_SYN_RECV], .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, }, { .procname = "ip_conntrack_tcp_timeout_established", - .data = &tcp_timeouts[TCP_CONNTRACK_ESTABLISHED], .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, }, { .procname = "ip_conntrack_tcp_timeout_fin_wait", - .data = &tcp_timeouts[TCP_CONNTRACK_FIN_WAIT], .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, }, { .procname = "ip_conntrack_tcp_timeout_close_wait", - .data = &tcp_timeouts[TCP_CONNTRACK_CLOSE_WAIT], .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, }, { .procname = "ip_conntrack_tcp_timeout_last_ack", - .data = &tcp_timeouts[TCP_CONNTRACK_LAST_ACK], .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, }, { .procname = "ip_conntrack_tcp_timeout_time_wait", - .data = &tcp_timeouts[TCP_CONNTRACK_TIME_WAIT], .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, }, { .procname = "ip_conntrack_tcp_timeout_close", - .data = &tcp_timeouts[TCP_CONNTRACK_CLOSE], .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, }, { .procname = "ip_conntrack_tcp_timeout_max_retrans", - .data = &tcp_timeouts[TCP_CONNTRACK_RETRANS], .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, }, { .procname = "ip_conntrack_tcp_loose", - .data = &nf_ct_tcp_loose, .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec, }, { .procname = "ip_conntrack_tcp_be_liberal", - .data = &nf_ct_tcp_be_liberal, .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec, }, { .procname = "ip_conntrack_tcp_max_retrans", - .data = &nf_ct_tcp_max_retrans, .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec, @@ -1550,6 +1533,125 @@ static struct ctl_table tcp_compat_sysctl_table[] = { #endif /* CONFIG_NF_CONNTRACK_PROC_COMPAT */ #endif /* CONFIG_SYSCTL */ +static int tcp_kmemdup_sysctl_table(struct nf_proto_net *pn) +{ +#ifdef CONFIG_SYSCTL + struct nf_tcp_net *tn = (struct nf_tcp_net *)pn; + + if (pn->ctl_table) + return 0; + + pn->ctl_table = kmemdup(tcp_sysctl_table, + sizeof(tcp_sysctl_table), + GFP_KERNEL); + if (!pn->ctl_table) + return -ENOMEM; + + pn->ctl_table[0].data = &tn->timeouts[TCP_CONNTRACK_SYN_SENT]; + pn->ctl_table[1].data = &tn->timeouts[TCP_CONNTRACK_SYN_RECV]; + pn->ctl_table[2].data = &tn->timeouts[TCP_CONNTRACK_ESTABLISHED]; + pn->ctl_table[3].data = &tn->timeouts[TCP_CONNTRACK_FIN_WAIT]; + pn->ctl_table[4].data = &tn->timeouts[TCP_CONNTRACK_CLOSE_WAIT]; + pn->ctl_table[5].data = &tn->timeouts[TCP_CONNTRACK_LAST_ACK]; + pn->ctl_table[6].data = &tn->timeouts[TCP_CONNTRACK_TIME_WAIT]; + pn->ctl_table[7].data = &tn->timeouts[TCP_CONNTRACK_CLOSE]; + pn->ctl_table[8].data = &tn->timeouts[TCP_CONNTRACK_RETRANS]; + pn->ctl_table[9].data = &tn->timeouts[TCP_CONNTRACK_UNACK]; + pn->ctl_table[10].data = &tn->tcp_loose; + pn->ctl_table[11].data = &tn->tcp_be_liberal; + pn->ctl_table[12].data = &tn->tcp_max_retrans; +#endif + return 0; +} + +static int tcp_kmemdup_compat_sysctl_table(struct nf_proto_net *pn) +{ +#ifdef CONFIG_SYSCTL +#ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT + struct nf_tcp_net *tn = (struct nf_tcp_net *)pn; + pn->ctl_compat_table = kmemdup(tcp_compat_sysctl_table, + sizeof(tcp_compat_sysctl_table), + GFP_KERNEL); + if (!pn->ctl_compat_table) + return -ENOMEM; + + pn->ctl_compat_table[0].data = &tn->timeouts[TCP_CONNTRACK_SYN_SENT]; + pn->ctl_compat_table[1].data = &tn->timeouts[TCP_CONNTRACK_SYN_SENT2]; + pn->ctl_compat_table[2].data = &tn->timeouts[TCP_CONNTRACK_SYN_RECV]; + pn->ctl_compat_table[3].data = &tn->timeouts[TCP_CONNTRACK_ESTABLISHED]; + pn->ctl_compat_table[4].data = &tn->timeouts[TCP_CONNTRACK_FIN_WAIT]; + pn->ctl_compat_table[5].data = &tn->timeouts[TCP_CONNTRACK_CLOSE_WAIT]; + pn->ctl_compat_table[6].data = &tn->timeouts[TCP_CONNTRACK_LAST_ACK]; + pn->ctl_compat_table[7].data = &tn->timeouts[TCP_CONNTRACK_TIME_WAIT]; + pn->ctl_compat_table[8].data = &tn->timeouts[TCP_CONNTRACK_CLOSE]; + pn->ctl_compat_table[9].data = &tn->timeouts[TCP_CONNTRACK_RETRANS]; + pn->ctl_compat_table[10].data = &tn->tcp_loose; + pn->ctl_compat_table[11].data = &tn->tcp_be_liberal; + pn->ctl_compat_table[12].data = &tn->tcp_max_retrans; +#endif +#endif + return 0; +} + +static int tcpv4_init_net(struct net *net) +{ + int i; + int ret = 0; + struct nf_tcp_net *tn = tcp_pernet(net); + struct nf_proto_net *pn = (struct nf_proto_net *)tn; + +#ifdef CONFIG_SYSCTL + if (!pn->ctl_table) { +#else + if (!pn->users++) { +#endif + for (i = 0; i < TCP_CONNTRACK_TIMEOUT_MAX; i++) + tn->timeouts[i] = tcp_timeouts[i]; + + tn->tcp_loose = nf_ct_tcp_loose; + tn->tcp_be_liberal = nf_ct_tcp_be_liberal; + tn->tcp_max_retrans = nf_ct_tcp_max_retrans; + } + + ret = tcp_kmemdup_compat_sysctl_table(pn); + + if (ret < 0) + return ret; + + ret = tcp_kmemdup_sysctl_table(pn); + +#ifdef CONFIG_SYSCTL +#ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT + if (ret < 0) { + kfree(pn->ctl_compat_table); + pn->ctl_compat_table = NULL; + } +#endif +#endif + return ret; +} + +static int tcpv6_init_net(struct net *net) +{ + int i; + struct nf_tcp_net *tn = tcp_pernet(net); + struct nf_proto_net *pn = (struct nf_proto_net *)tn; + +#ifdef CONFIG_SYSCTL + if (!pn->ctl_table) { +#else + if (!pn->users++) { +#endif + for (i = 0; i < TCP_CONNTRACK_TIMEOUT_MAX; i++) + tn->timeouts[i] = tcp_timeouts[i]; + tn->tcp_loose = nf_ct_tcp_loose; + tn->tcp_be_liberal = nf_ct_tcp_be_liberal; + tn->tcp_max_retrans = nf_ct_tcp_max_retrans; + } + + return tcp_kmemdup_sysctl_table(pn); +} + struct nf_conntrack_l4proto nf_conntrack_l4proto_tcp4 __read_mostly = { .l3proto = PF_INET, @@ -1582,14 +1684,7 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_tcp4 __read_mostly = .nla_policy = tcp_timeout_nla_policy, }, #endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ -#ifdef CONFIG_SYSCTL - .ctl_table_users = &tcp_sysctl_table_users, - .ctl_table_header = &tcp_sysctl_header, - .ctl_table = tcp_sysctl_table, -#ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT - .ctl_compat_table = tcp_compat_sysctl_table, -#endif -#endif + .init_net = tcpv4_init_net, }; EXPORT_SYMBOL_GPL(nf_conntrack_l4proto_tcp4); @@ -1625,10 +1720,6 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_tcp6 __read_mostly = .nla_policy = tcp_timeout_nla_policy, }, #endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ -#ifdef CONFIG_SYSCTL - .ctl_table_users = &tcp_sysctl_table_users, - .ctl_table_header = &tcp_sysctl_header, - .ctl_table = tcp_sysctl_table, -#endif + .init_net = tcpv6_init_net, }; EXPORT_SYMBOL_GPL(nf_conntrack_l4proto_tcp6); diff --git a/net/netfilter/nf_conntrack_proto_udp.c b/net/netfilter/nf_conntrack_proto_udp.c index 7259a6bdeb49..a83cf93545cd 100644 --- a/net/netfilter/nf_conntrack_proto_udp.c +++ b/net/netfilter/nf_conntrack_proto_udp.c @@ -25,17 +25,16 @@ #include <net/netfilter/ipv4/nf_conntrack_ipv4.h> #include <net/netfilter/ipv6/nf_conntrack_ipv6.h> -enum udp_conntrack { - UDP_CT_UNREPLIED, - UDP_CT_REPLIED, - UDP_CT_MAX -}; - static unsigned int udp_timeouts[UDP_CT_MAX] = { [UDP_CT_UNREPLIED] = 30*HZ, [UDP_CT_REPLIED] = 180*HZ, }; +static inline struct nf_udp_net *udp_pernet(struct net *net) +{ + return &net->ct.nf_ct_proto.udp; +} + static bool udp_pkt_to_tuple(const struct sk_buff *skb, unsigned int dataoff, struct nf_conntrack_tuple *tuple) @@ -73,7 +72,7 @@ static int udp_print_tuple(struct seq_file *s, static unsigned int *udp_get_timeouts(struct net *net) { - return udp_timeouts; + return udp_pernet(net)->timeouts; } /* Returns verdict for packet, and may modify conntracktype */ @@ -157,13 +156,15 @@ static int udp_error(struct net *net, struct nf_conn *tmpl, struct sk_buff *skb, #include <linux/netfilter/nfnetlink.h> #include <linux/netfilter/nfnetlink_cttimeout.h> -static int udp_timeout_nlattr_to_obj(struct nlattr *tb[], void *data) +static int udp_timeout_nlattr_to_obj(struct nlattr *tb[], + struct net *net, void *data) { unsigned int *timeouts = data; + struct nf_udp_net *un = udp_pernet(net); /* set default timeouts for UDP. */ - timeouts[UDP_CT_UNREPLIED] = udp_timeouts[UDP_CT_UNREPLIED]; - timeouts[UDP_CT_REPLIED] = udp_timeouts[UDP_CT_REPLIED]; + timeouts[UDP_CT_UNREPLIED] = un->timeouts[UDP_CT_UNREPLIED]; + timeouts[UDP_CT_REPLIED] = un->timeouts[UDP_CT_REPLIED]; if (tb[CTA_TIMEOUT_UDP_UNREPLIED]) { timeouts[UDP_CT_UNREPLIED] = @@ -200,19 +201,15 @@ udp_timeout_nla_policy[CTA_TIMEOUT_UDP_MAX+1] = { #endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ #ifdef CONFIG_SYSCTL -static unsigned int udp_sysctl_table_users; -static struct ctl_table_header *udp_sysctl_header; static struct ctl_table udp_sysctl_table[] = { { .procname = "nf_conntrack_udp_timeout", - .data = &udp_timeouts[UDP_CT_UNREPLIED], .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, }, { .procname = "nf_conntrack_udp_timeout_stream", - .data = &udp_timeouts[UDP_CT_REPLIED], .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, @@ -223,14 +220,12 @@ static struct ctl_table udp_sysctl_table[] = { static struct ctl_table udp_compat_sysctl_table[] = { { .procname = "ip_conntrack_udp_timeout", - .data = &udp_timeouts[UDP_CT_UNREPLIED], .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, }, { .procname = "ip_conntrack_udp_timeout_stream", - .data = &udp_timeouts[UDP_CT_REPLIED], .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, @@ -240,6 +235,87 @@ static struct ctl_table udp_compat_sysctl_table[] = { #endif /* CONFIG_NF_CONNTRACK_PROC_COMPAT */ #endif /* CONFIG_SYSCTL */ +static int udp_kmemdup_sysctl_table(struct nf_proto_net *pn) +{ +#ifdef CONFIG_SYSCTL + struct nf_udp_net *un = (struct nf_udp_net *)pn; + if (pn->ctl_table) + return 0; + pn->ctl_table = kmemdup(udp_sysctl_table, + sizeof(udp_sysctl_table), + GFP_KERNEL); + if (!pn->ctl_table) + return -ENOMEM; + pn->ctl_table[0].data = &un->timeouts[UDP_CT_UNREPLIED]; + pn->ctl_table[1].data = &un->timeouts[UDP_CT_REPLIED]; +#endif + return 0; +} + +static int udp_kmemdup_compat_sysctl_table(struct nf_proto_net *pn) +{ +#ifdef CONFIG_SYSCTL +#ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT + struct nf_udp_net *un = (struct nf_udp_net *)pn; + pn->ctl_compat_table = kmemdup(udp_compat_sysctl_table, + sizeof(udp_compat_sysctl_table), + GFP_KERNEL); + if (!pn->ctl_compat_table) + return -ENOMEM; + + pn->ctl_compat_table[0].data = &un->timeouts[UDP_CT_UNREPLIED]; + pn->ctl_compat_table[1].data = &un->timeouts[UDP_CT_REPLIED]; +#endif +#endif + return 0; +} + +static void udp_init_net_data(struct nf_udp_net *un) +{ + int i; +#ifdef CONFIG_SYSCTL + if (!un->pn.ctl_table) { +#else + if (!un->pn.users++) { +#endif + for (i = 0; i < UDP_CT_MAX; i++) + un->timeouts[i] = udp_timeouts[i]; + } +} + +static int udpv4_init_net(struct net *net) +{ + int ret; + struct nf_udp_net *un = udp_pernet(net); + struct nf_proto_net *pn = (struct nf_proto_net *)un; + + udp_init_net_data(un); + + ret = udp_kmemdup_compat_sysctl_table(pn); + if (ret < 0) + return ret; + + ret = udp_kmemdup_sysctl_table(pn); +#ifdef CONFIG_SYSCTL +#ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT + if (ret < 0) { + kfree(pn->ctl_compat_table); + pn->ctl_compat_table = NULL; + } +#endif +#endif + return ret; +} + +static int udpv6_init_net(struct net *net) +{ + struct nf_udp_net *un = udp_pernet(net); + struct nf_proto_net *pn = (struct nf_proto_net *)un; + + udp_init_net_data(un); + return udp_kmemdup_sysctl_table(pn); +} + struct nf_conntrack_l4proto nf_conntrack_l4proto_udp4 __read_mostly = { .l3proto = PF_INET, @@ -267,14 +343,7 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_udp4 __read_mostly = .nla_policy = udp_timeout_nla_policy, }, #endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ -#ifdef CONFIG_SYSCTL - .ctl_table_users = &udp_sysctl_table_users, - .ctl_table_header = &udp_sysctl_header, - .ctl_table = udp_sysctl_table, -#ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT - .ctl_compat_table = udp_compat_sysctl_table, -#endif -#endif + .init_net = udpv4_init_net, }; EXPORT_SYMBOL_GPL(nf_conntrack_l4proto_udp4); @@ -305,10 +374,6 @@ struct nf_conntrack_l4proto nf_conntrack_l4proto_udp6 __read_mostly = .nla_policy = udp_timeout_nla_policy, }, #endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ -#ifdef CONFIG_SYSCTL - .ctl_table_users = &udp_sysctl_table_users, - .ctl_table_header = &udp_sysctl_header, - .ctl_table = udp_sysctl_table, -#endif + .init_net = udpv6_init_net, }; EXPORT_SYMBOL_GPL(nf_conntrack_l4proto_udp6); diff --git a/net/netfilter/nf_conntrack_proto_udplite.c b/net/netfilter/nf_conntrack_proto_udplite.c index 4d60a5376aa6..b32e700f8dde 100644 --- a/net/netfilter/nf_conntrack_proto_udplite.c +++ b/net/netfilter/nf_conntrack_proto_udplite.c @@ -35,6 +35,17 @@ static unsigned int udplite_timeouts[UDPLITE_CT_MAX] = { [UDPLITE_CT_REPLIED] = 180*HZ, }; +static int udplite_net_id __read_mostly; +struct udplite_net { + struct nf_proto_net pn; + unsigned int timeouts[UDPLITE_CT_MAX]; +}; + +static inline struct udplite_net *udplite_pernet(struct net *net) +{ + return net_generic(net, udplite_net_id); +} + static bool udplite_pkt_to_tuple(const struct sk_buff *skb, unsigned int dataoff, struct nf_conntrack_tuple *tuple) @@ -70,7 +81,7 @@ static int udplite_print_tuple(struct seq_file *s, static unsigned int *udplite_get_timeouts(struct net *net) { - return udplite_timeouts; + return udplite_pernet(net)->timeouts; } /* Returns verdict for packet, and may modify conntracktype */ @@ -161,13 +172,15 @@ static int udplite_error(struct net *net, struct nf_conn *tmpl, #include <linux/netfilter/nfnetlink.h> #include <linux/netfilter/nfnetlink_cttimeout.h> -static int udplite_timeout_nlattr_to_obj(struct nlattr *tb[], void *data) +static int udplite_timeout_nlattr_to_obj(struct nlattr *tb[], + struct net *net, void *data) { unsigned int *timeouts = data; + struct udplite_net *un = udplite_pernet(net); /* set default timeouts for UDPlite. */ - timeouts[UDPLITE_CT_UNREPLIED] = udplite_timeouts[UDPLITE_CT_UNREPLIED]; - timeouts[UDPLITE_CT_REPLIED] = udplite_timeouts[UDPLITE_CT_REPLIED]; + timeouts[UDPLITE_CT_UNREPLIED] = un->timeouts[UDPLITE_CT_UNREPLIED]; + timeouts[UDPLITE_CT_REPLIED] = un->timeouts[UDPLITE_CT_REPLIED]; if (tb[CTA_TIMEOUT_UDPLITE_UNREPLIED]) { timeouts[UDPLITE_CT_UNREPLIED] = @@ -204,19 +217,15 @@ udplite_timeout_nla_policy[CTA_TIMEOUT_UDPLITE_MAX+1] = { #endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ #ifdef CONFIG_SYSCTL -static unsigned int udplite_sysctl_table_users; -static struct ctl_table_header *udplite_sysctl_header; static struct ctl_table udplite_sysctl_table[] = { { .procname = "nf_conntrack_udplite_timeout", - .data = &udplite_timeouts[UDPLITE_CT_UNREPLIED], .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, }, { .procname = "nf_conntrack_udplite_timeout_stream", - .data = &udplite_timeouts[UDPLITE_CT_REPLIED], .maxlen = sizeof(unsigned int), .mode = 0644, .proc_handler = proc_dointvec_jiffies, @@ -225,6 +234,31 @@ static struct ctl_table udplite_sysctl_table[] = { }; #endif /* CONFIG_SYSCTL */ +static int udplite_init_net(struct net *net) +{ + int i; + struct udplite_net *un = udplite_pernet(net); + struct nf_proto_net *pn = (struct nf_proto_net *)un; +#ifdef CONFIG_SYSCTL + if (!pn->ctl_table) { +#else + if (!pn->users++) { +#endif + for (i = 0 ; i < UDPLITE_CT_MAX; i++) + un->timeouts[i] = udplite_timeouts[i]; +#ifdef CONFIG_SYSCTL + pn->ctl_table = kmemdup(udplite_sysctl_table, + sizeof(udplite_sysctl_table), + GFP_KERNEL); + if (!pn->ctl_table) + return -ENOMEM; + pn->ctl_table[0].data = &un->timeouts[UDPLITE_CT_UNREPLIED]; + pn->ctl_table[1].data = &un->timeouts[UDPLITE_CT_REPLIED]; +#endif + } + return 0; +} + static struct nf_conntrack_l4proto nf_conntrack_l4proto_udplite4 __read_mostly = { .l3proto = PF_INET, @@ -253,11 +287,8 @@ static struct nf_conntrack_l4proto nf_conntrack_l4proto_udplite4 __read_mostly = .nla_policy = udplite_timeout_nla_policy, }, #endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ -#ifdef CONFIG_SYSCTL - .ctl_table_users = &udplite_sysctl_table_users, - .ctl_table_header = &udplite_sysctl_header, - .ctl_table = udplite_sysctl_table, -#endif + .net_id = &udplite_net_id, + .init_net = udplite_init_net, }; static struct nf_conntrack_l4proto nf_conntrack_l4proto_udplite6 __read_mostly = @@ -288,34 +319,55 @@ static struct nf_conntrack_l4proto nf_conntrack_l4proto_udplite6 __read_mostly = .nla_policy = udplite_timeout_nla_policy, }, #endif /* CONFIG_NF_CT_NETLINK_TIMEOUT */ -#ifdef CONFIG_SYSCTL - .ctl_table_users = &udplite_sysctl_table_users, - .ctl_table_header = &udplite_sysctl_header, - .ctl_table = udplite_sysctl_table, -#endif + .net_id = &udplite_net_id, + .init_net = udplite_init_net, }; -static int __init nf_conntrack_proto_udplite_init(void) +static int udplite_net_init(struct net *net) { - int err; - - err = nf_conntrack_l4proto_register(&nf_conntrack_l4proto_udplite4); - if (err < 0) - goto err1; - err = nf_conntrack_l4proto_register(&nf_conntrack_l4proto_udplite6); - if (err < 0) - goto err2; + int ret = 0; + + ret = nf_conntrack_l4proto_register(net, + &nf_conntrack_l4proto_udplite4); + if (ret < 0) { + pr_err("nf_conntrack_l4proto_udplite4 :protocol register failed.\n"); + goto out; + } + ret = nf_conntrack_l4proto_register(net, + &nf_conntrack_l4proto_udplite6); + if (ret < 0) { + pr_err("nf_conntrack_l4proto_udplite4 :protocol register failed.\n"); + goto cleanup_udplite4; + } return 0; -err2: - nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_udplite4); -err1: - return err; + +cleanup_udplite4: + nf_conntrack_l4proto_unregister(net, &nf_conntrack_l4proto_udplite4); +out: + return ret; +} + +static void udplite_net_exit(struct net *net) +{ + nf_conntrack_l4proto_unregister(net, &nf_conntrack_l4proto_udplite6); + nf_conntrack_l4proto_unregister(net, &nf_conntrack_l4proto_udplite4); +} + +static struct pernet_operations udplite_net_ops = { + .init = udplite_net_init, + .exit = udplite_net_exit, + .id = &udplite_net_id, + .size = sizeof(struct udplite_net), +}; + +static int __init nf_conntrack_proto_udplite_init(void) +{ + return register_pernet_subsys(&udplite_net_ops); } static void __exit nf_conntrack_proto_udplite_exit(void) { - nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_udplite6); - nf_conntrack_l4proto_unregister(&nf_conntrack_l4proto_udplite4); + unregister_pernet_subsys(&udplite_net_ops); } module_init(nf_conntrack_proto_udplite_init); diff --git a/net/netfilter/nfnetlink_cttimeout.c b/net/netfilter/nfnetlink_cttimeout.c index 3e655288d1d6..cdecbc8fe965 100644 --- a/net/netfilter/nfnetlink_cttimeout.c +++ b/net/netfilter/nfnetlink_cttimeout.c @@ -49,8 +49,9 @@ static const struct nla_policy cttimeout_nla_policy[CTA_TIMEOUT_MAX+1] = { static int ctnl_timeout_parse_policy(struct ctnl_timeout *timeout, - struct nf_conntrack_l4proto *l4proto, - const struct nlattr *attr) + struct nf_conntrack_l4proto *l4proto, + struct net *net, + const struct nlattr *attr) { int ret = 0; @@ -60,7 +61,8 @@ ctnl_timeout_parse_policy(struct ctnl_timeout *timeout, nla_parse_nested(tb, l4proto->ctnl_timeout.nlattr_max, attr, l4proto->ctnl_timeout.nla_policy); - ret = l4proto->ctnl_timeout.nlattr_to_obj(tb, &timeout->data); + ret = l4proto->ctnl_timeout.nlattr_to_obj(tb, net, + &timeout->data); } return ret; } @@ -74,6 +76,7 @@ cttimeout_new_timeout(struct sock *ctnl, struct sk_buff *skb, __u8 l4num; struct nf_conntrack_l4proto *l4proto; struct ctnl_timeout *timeout, *matching = NULL; + struct net *net = sock_net(skb->sk); char *name; int ret; @@ -117,7 +120,7 @@ cttimeout_new_timeout(struct sock *ctnl, struct sk_buff *skb, goto err_proto_put; } - ret = ctnl_timeout_parse_policy(matching, l4proto, + ret = ctnl_timeout_parse_policy(matching, l4proto, net, cda[CTA_TIMEOUT_DATA]); return ret; } @@ -132,7 +135,7 @@ cttimeout_new_timeout(struct sock *ctnl, struct sk_buff *skb, goto err_proto_put; } - ret = ctnl_timeout_parse_policy(timeout, l4proto, + ret = ctnl_timeout_parse_policy(timeout, l4proto, net, cda[CTA_TIMEOUT_DATA]); if (ret < 0) goto err; diff --git a/net/netfilter/nfnetlink_queue.c b/net/netfilter/nfnetlink_queue.c index 4162437b8361..630da3d2c62a 100644 --- a/net/netfilter/nfnetlink_queue.c +++ b/net/netfilter/nfnetlink_queue.c @@ -52,6 +52,7 @@ struct nfqnl_instance { u_int16_t queue_num; /* number of this queue */ u_int8_t copy_mode; + u_int32_t flags; /* Set using NFQA_CFG_FLAGS */ /* * Following fields are dirtied for each queued packet, * keep them in same cache line if possible. @@ -406,6 +407,7 @@ nfqnl_enqueue_packet(struct nf_queue_entry *entry, unsigned int queuenum) struct nfqnl_instance *queue; int err = -ENOBUFS; __be32 *packet_id_ptr; + int failopen = 0; /* rcu_read_lock()ed by nf_hook_slow() */ queue = instance_lookup(queuenum); @@ -431,9 +433,14 @@ nfqnl_enqueue_packet(struct nf_queue_entry *entry, unsigned int queuenum) goto err_out_free_nskb; } if (queue->queue_total >= queue->queue_maxlen) { - queue->queue_dropped++; - net_warn_ratelimited("nf_queue: full at %d entries, dropping packets(s)\n", - queue->queue_total); + if (queue->flags & NFQA_CFG_F_FAIL_OPEN) { + failopen = 1; + err = 0; + } else { + queue->queue_dropped++; + net_warn_ratelimited("nf_queue: full at %d entries, dropping packets(s)\n", + queue->queue_total); + } goto err_out_free_nskb; } entry->id = ++queue->id_sequence; @@ -455,6 +462,8 @@ err_out_free_nskb: kfree_skb(nskb); err_out_unlock: spin_unlock_bh(&queue->lock); + if (failopen) + nf_reinject(entry, NF_ACCEPT); err_out: return err; } @@ -858,6 +867,31 @@ nfqnl_recv_config(struct sock *ctnl, struct sk_buff *skb, spin_unlock_bh(&queue->lock); } + if (nfqa[NFQA_CFG_FLAGS]) { + __u32 flags, mask; + + if (!queue) { + ret = -ENODEV; + goto err_out_unlock; + } + + if (!nfqa[NFQA_CFG_MASK]) { + /* A mask is needed to specify which flags are being + * changed. + */ + ret = -EINVAL; + goto err_out_unlock; + } + + flags = ntohl(nla_get_be32(nfqa[NFQA_CFG_FLAGS])); + mask = ntohl(nla_get_be32(nfqa[NFQA_CFG_MASK])); + + spin_lock_bh(&queue->lock); + queue->flags &= ~mask; + queue->flags |= flags & mask; + spin_unlock_bh(&queue->lock); + } + err_out_unlock: rcu_read_unlock(); return ret; diff --git a/net/netfilter/xt_NFQUEUE.c b/net/netfilter/xt_NFQUEUE.c index 95237c89607a..7babe7d68716 100644 --- a/net/netfilter/xt_NFQUEUE.c +++ b/net/netfilter/xt_NFQUEUE.c @@ -41,26 +41,36 @@ nfqueue_tg(struct sk_buff *skb, const struct xt_action_param *par) static u32 hash_v4(const struct sk_buff *skb) { const struct iphdr *iph = ip_hdr(skb); - __be32 ipaddr; /* packets in either direction go into same queue */ - ipaddr = iph->saddr ^ iph->daddr; + if (iph->saddr < iph->daddr) + return jhash_3words((__force u32)iph->saddr, + (__force u32)iph->daddr, iph->protocol, jhash_initval); - return jhash_2words((__force u32)ipaddr, iph->protocol, jhash_initval); + return jhash_3words((__force u32)iph->daddr, + (__force u32)iph->saddr, iph->protocol, jhash_initval); } #if IS_ENABLED(CONFIG_IP6_NF_IPTABLES) static u32 hash_v6(const struct sk_buff *skb) { const struct ipv6hdr *ip6h = ipv6_hdr(skb); - __be32 addr[4]; + u32 a, b, c; + + if (ip6h->saddr.s6_addr32[3] < ip6h->daddr.s6_addr32[3]) { + a = (__force u32) ip6h->saddr.s6_addr32[3]; + b = (__force u32) ip6h->daddr.s6_addr32[3]; + } else { + b = (__force u32) ip6h->saddr.s6_addr32[3]; + a = (__force u32) ip6h->daddr.s6_addr32[3]; + } - addr[0] = ip6h->saddr.s6_addr32[0] ^ ip6h->daddr.s6_addr32[0]; - addr[1] = ip6h->saddr.s6_addr32[1] ^ ip6h->daddr.s6_addr32[1]; - addr[2] = ip6h->saddr.s6_addr32[2] ^ ip6h->daddr.s6_addr32[2]; - addr[3] = ip6h->saddr.s6_addr32[3] ^ ip6h->daddr.s6_addr32[3]; + if (ip6h->saddr.s6_addr32[1] < ip6h->daddr.s6_addr32[1]) + c = (__force u32) ip6h->saddr.s6_addr32[1]; + else + c = (__force u32) ip6h->daddr.s6_addr32[1]; - return jhash2((__force u32 *)addr, ARRAY_SIZE(addr), jhash_initval); + return jhash_3words(a, b, c, jhash_initval); } #endif diff --git a/net/netfilter/xt_connlimit.c b/net/netfilter/xt_connlimit.c index c6d5a83450c9..70b5591a2586 100644 --- a/net/netfilter/xt_connlimit.c +++ b/net/netfilter/xt_connlimit.c @@ -274,38 +274,25 @@ static void connlimit_mt_destroy(const struct xt_mtdtor_param *par) kfree(info->data); } -static struct xt_match connlimit_mt_reg[] __read_mostly = { - { - .name = "connlimit", - .revision = 0, - .family = NFPROTO_UNSPEC, - .checkentry = connlimit_mt_check, - .match = connlimit_mt, - .matchsize = sizeof(struct xt_connlimit_info), - .destroy = connlimit_mt_destroy, - .me = THIS_MODULE, - }, - { - .name = "connlimit", - .revision = 1, - .family = NFPROTO_UNSPEC, - .checkentry = connlimit_mt_check, - .match = connlimit_mt, - .matchsize = sizeof(struct xt_connlimit_info), - .destroy = connlimit_mt_destroy, - .me = THIS_MODULE, - }, +static struct xt_match connlimit_mt_reg __read_mostly = { + .name = "connlimit", + .revision = 1, + .family = NFPROTO_UNSPEC, + .checkentry = connlimit_mt_check, + .match = connlimit_mt, + .matchsize = sizeof(struct xt_connlimit_info), + .destroy = connlimit_mt_destroy, + .me = THIS_MODULE, }; static int __init connlimit_mt_init(void) { - return xt_register_matches(connlimit_mt_reg, - ARRAY_SIZE(connlimit_mt_reg)); + return xt_register_match(&connlimit_mt_reg); } static void __exit connlimit_mt_exit(void) { - xt_unregister_matches(connlimit_mt_reg, ARRAY_SIZE(connlimit_mt_reg)); + xt_unregister_match(&connlimit_mt_reg); } module_init(connlimit_mt_init); diff --git a/net/netfilter/xt_recent.c b/net/netfilter/xt_recent.c index fc0d6dbe5d17..ae2ad1eec8d0 100644 --- a/net/netfilter/xt_recent.c +++ b/net/netfilter/xt_recent.c @@ -75,6 +75,7 @@ struct recent_entry { struct recent_table { struct list_head list; char name[XT_RECENT_NAME_LEN]; + union nf_inet_addr mask; unsigned int refcnt; unsigned int entries; struct list_head lru_list; @@ -228,10 +229,10 @@ recent_mt(const struct sk_buff *skb, struct xt_action_param *par) { struct net *net = dev_net(par->in ? par->in : par->out); struct recent_net *recent_net = recent_pernet(net); - const struct xt_recent_mtinfo *info = par->matchinfo; + const struct xt_recent_mtinfo_v1 *info = par->matchinfo; struct recent_table *t; struct recent_entry *e; - union nf_inet_addr addr = {}; + union nf_inet_addr addr = {}, addr_mask; u_int8_t ttl; bool ret = info->invert; @@ -261,12 +262,15 @@ recent_mt(const struct sk_buff *skb, struct xt_action_param *par) spin_lock_bh(&recent_lock); t = recent_table_lookup(recent_net, info->name); - e = recent_entry_lookup(t, &addr, par->family, + + nf_inet_addr_mask(&addr, &addr_mask, &t->mask); + + e = recent_entry_lookup(t, &addr_mask, par->family, (info->check_set & XT_RECENT_TTL) ? ttl : 0); if (e == NULL) { if (!(info->check_set & XT_RECENT_SET)) goto out; - e = recent_entry_init(t, &addr, par->family, ttl); + e = recent_entry_init(t, &addr_mask, par->family, ttl); if (e == NULL) par->hotdrop = true; ret = !ret; @@ -306,10 +310,10 @@ out: return ret; } -static int recent_mt_check(const struct xt_mtchk_param *par) +static int recent_mt_check(const struct xt_mtchk_param *par, + const struct xt_recent_mtinfo_v1 *info) { struct recent_net *recent_net = recent_pernet(par->net); - const struct xt_recent_mtinfo *info = par->matchinfo; struct recent_table *t; #ifdef CONFIG_PROC_FS struct proc_dir_entry *pde; @@ -361,6 +365,8 @@ static int recent_mt_check(const struct xt_mtchk_param *par) goto out; } t->refcnt = 1; + + memcpy(&t->mask, &info->mask, sizeof(t->mask)); strcpy(t->name, info->name); INIT_LIST_HEAD(&t->lru_list); for (i = 0; i < ip_list_hash_size; i++) @@ -385,10 +391,28 @@ out: return ret; } +static int recent_mt_check_v0(const struct xt_mtchk_param *par) +{ + const struct xt_recent_mtinfo_v0 *info_v0 = par->matchinfo; + struct xt_recent_mtinfo_v1 info_v1; + + /* Copy revision 0 structure to revision 1 */ + memcpy(&info_v1, info_v0, sizeof(struct xt_recent_mtinfo)); + /* Set default mask to ensure backward compatible behaviour */ + memset(info_v1.mask.all, 0xFF, sizeof(info_v1.mask.all)); + + return recent_mt_check(par, &info_v1); +} + +static int recent_mt_check_v1(const struct xt_mtchk_param *par) +{ + return recent_mt_check(par, par->matchinfo); +} + static void recent_mt_destroy(const struct xt_mtdtor_param *par) { struct recent_net *recent_net = recent_pernet(par->net); - const struct xt_recent_mtinfo *info = par->matchinfo; + const struct xt_recent_mtinfo_v1 *info = par->matchinfo; struct recent_table *t; mutex_lock(&recent_mutex); @@ -625,7 +649,7 @@ static struct xt_match recent_mt_reg[] __read_mostly = { .family = NFPROTO_IPV4, .match = recent_mt, .matchsize = sizeof(struct xt_recent_mtinfo), - .checkentry = recent_mt_check, + .checkentry = recent_mt_check_v0, .destroy = recent_mt_destroy, .me = THIS_MODULE, }, @@ -635,10 +659,30 @@ static struct xt_match recent_mt_reg[] __read_mostly = { .family = NFPROTO_IPV6, .match = recent_mt, .matchsize = sizeof(struct xt_recent_mtinfo), - .checkentry = recent_mt_check, + .checkentry = recent_mt_check_v0, + .destroy = recent_mt_destroy, + .me = THIS_MODULE, + }, + { + .name = "recent", + .revision = 1, + .family = NFPROTO_IPV4, + .match = recent_mt, + .matchsize = sizeof(struct xt_recent_mtinfo_v1), + .checkentry = recent_mt_check_v1, .destroy = recent_mt_destroy, .me = THIS_MODULE, }, + { + .name = "recent", + .revision = 1, + .family = NFPROTO_IPV6, + .match = recent_mt, + .matchsize = sizeof(struct xt_recent_mtinfo_v1), + .checkentry = recent_mt_check_v1, + .destroy = recent_mt_destroy, + .me = THIS_MODULE, + } }; static int __init recent_mt_init(void) diff --git a/net/nfc/core.c b/net/nfc/core.c index 9f6ce011d35d..4177bb5104b9 100644 --- a/net/nfc/core.c +++ b/net/nfc/core.c @@ -121,14 +121,14 @@ error: * The device remains polling for targets until a target is found or * the nfc_stop_poll function is called. */ -int nfc_start_poll(struct nfc_dev *dev, u32 protocols) +int nfc_start_poll(struct nfc_dev *dev, u32 im_protocols, u32 tm_protocols) { int rc; - pr_debug("dev_name=%s protocols=0x%x\n", - dev_name(&dev->dev), protocols); + pr_debug("dev_name %s initiator protocols 0x%x target protocols 0x%x\n", + dev_name(&dev->dev), im_protocols, tm_protocols); - if (!protocols) + if (!im_protocols && !tm_protocols) return -EINVAL; device_lock(&dev->dev); @@ -143,9 +143,11 @@ int nfc_start_poll(struct nfc_dev *dev, u32 protocols) goto error; } - rc = dev->ops->start_poll(dev, protocols); - if (!rc) + rc = dev->ops->start_poll(dev, im_protocols, tm_protocols); + if (!rc) { dev->polling = true; + dev->rf_mode = NFC_RF_NONE; + } error: device_unlock(&dev->dev); @@ -235,8 +237,10 @@ int nfc_dep_link_up(struct nfc_dev *dev, int target_index, u8 comm_mode) } rc = dev->ops->dep_link_up(dev, target, comm_mode, gb, gb_len); - if (!rc) + if (!rc) { dev->active_target = target; + dev->rf_mode = NFC_RF_INITIATOR; + } error: device_unlock(&dev->dev); @@ -264,11 +268,6 @@ int nfc_dep_link_down(struct nfc_dev *dev) goto error; } - if (dev->dep_rf_mode == NFC_RF_TARGET) { - rc = -EOPNOTSUPP; - goto error; - } - rc = dev->ops->dep_link_down(dev); if (!rc) { dev->dep_link_up = false; @@ -286,7 +285,6 @@ int nfc_dep_link_is_up(struct nfc_dev *dev, u32 target_idx, u8 comm_mode, u8 rf_mode) { dev->dep_link_up = true; - dev->dep_rf_mode = rf_mode; nfc_llcp_mac_is_up(dev, target_idx, comm_mode, rf_mode); @@ -330,6 +328,7 @@ int nfc_activate_target(struct nfc_dev *dev, u32 target_idx, u32 protocol) rc = dev->ops->activate_target(dev, target, protocol); if (!rc) { dev->active_target = target; + dev->rf_mode = NFC_RF_INITIATOR; if (dev->ops->check_presence) mod_timer(&dev->check_pres_timer, jiffies + @@ -409,27 +408,30 @@ int nfc_data_exchange(struct nfc_dev *dev, u32 target_idx, struct sk_buff *skb, goto error; } - if (dev->active_target == NULL) { - rc = -ENOTCONN; - kfree_skb(skb); - goto error; - } + if (dev->rf_mode == NFC_RF_INITIATOR && dev->active_target != NULL) { + if (dev->active_target->idx != target_idx) { + rc = -EADDRNOTAVAIL; + kfree_skb(skb); + goto error; + } - if (dev->active_target->idx != target_idx) { - rc = -EADDRNOTAVAIL; + if (dev->ops->check_presence) + del_timer_sync(&dev->check_pres_timer); + + rc = dev->ops->im_transceive(dev, dev->active_target, skb, cb, + cb_context); + + if (!rc && dev->ops->check_presence) + mod_timer(&dev->check_pres_timer, jiffies + + msecs_to_jiffies(NFC_CHECK_PRES_FREQ_MS)); + } else if (dev->rf_mode == NFC_RF_TARGET && dev->ops->tm_send != NULL) { + rc = dev->ops->tm_send(dev, skb); + } else { + rc = -ENOTCONN; kfree_skb(skb); goto error; } - if (dev->ops->check_presence) - del_timer_sync(&dev->check_pres_timer); - - rc = dev->ops->data_exchange(dev, dev->active_target, skb, cb, - cb_context); - - if (!rc && dev->ops->check_presence) - mod_timer(&dev->check_pres_timer, jiffies + - msecs_to_jiffies(NFC_CHECK_PRES_FREQ_MS)); error: device_unlock(&dev->dev); @@ -447,6 +449,63 @@ int nfc_set_remote_general_bytes(struct nfc_dev *dev, u8 *gb, u8 gb_len) } EXPORT_SYMBOL(nfc_set_remote_general_bytes); +u8 *nfc_get_local_general_bytes(struct nfc_dev *dev, size_t *gb_len) +{ + pr_debug("dev_name=%s\n", dev_name(&dev->dev)); + + return nfc_llcp_general_bytes(dev, gb_len); +} +EXPORT_SYMBOL(nfc_get_local_general_bytes); + +int nfc_tm_data_received(struct nfc_dev *dev, struct sk_buff *skb) +{ + /* Only LLCP target mode for now */ + if (dev->dep_link_up == false) { + kfree_skb(skb); + return -ENOLINK; + } + + return nfc_llcp_data_received(dev, skb); +} +EXPORT_SYMBOL(nfc_tm_data_received); + +int nfc_tm_activated(struct nfc_dev *dev, u32 protocol, u8 comm_mode, + u8 *gb, size_t gb_len) +{ + int rc; + + device_lock(&dev->dev); + + dev->polling = false; + + if (gb != NULL) { + rc = nfc_set_remote_general_bytes(dev, gb, gb_len); + if (rc < 0) + goto out; + } + + dev->rf_mode = NFC_RF_TARGET; + + if (protocol == NFC_PROTO_NFC_DEP_MASK) + nfc_dep_link_is_up(dev, 0, comm_mode, NFC_RF_TARGET); + + rc = nfc_genl_tm_activated(dev, protocol); + +out: + device_unlock(&dev->dev); + + return rc; +} +EXPORT_SYMBOL(nfc_tm_activated); + +int nfc_tm_deactivated(struct nfc_dev *dev) +{ + dev->dep_link_up = false; + + return nfc_genl_tm_deactivated(dev); +} +EXPORT_SYMBOL(nfc_tm_deactivated); + /** * nfc_alloc_send_skb - allocate a skb for data exchange responses * @@ -678,7 +737,7 @@ struct nfc_dev *nfc_allocate_device(struct nfc_ops *ops, struct nfc_dev *dev; if (!ops->start_poll || !ops->stop_poll || !ops->activate_target || - !ops->deactivate_target || !ops->data_exchange) + !ops->deactivate_target || !ops->im_transceive) return NULL; if (!supported_protocols) diff --git a/net/nfc/hci/core.c b/net/nfc/hci/core.c index e1a640d2b588..a8b0b71e8f86 100644 --- a/net/nfc/hci/core.c +++ b/net/nfc/hci/core.c @@ -481,12 +481,13 @@ static int hci_dev_down(struct nfc_dev *nfc_dev) return 0; } -static int hci_start_poll(struct nfc_dev *nfc_dev, u32 protocols) +static int hci_start_poll(struct nfc_dev *nfc_dev, + u32 im_protocols, u32 tm_protocols) { struct nfc_hci_dev *hdev = nfc_get_drvdata(nfc_dev); if (hdev->ops->start_poll) - return hdev->ops->start_poll(hdev, protocols); + return hdev->ops->start_poll(hdev, im_protocols, tm_protocols); else return nfc_hci_send_event(hdev, NFC_HCI_RF_READER_A_GATE, NFC_HCI_EVT_READER_REQUESTED, NULL, 0); @@ -511,9 +512,9 @@ static void hci_deactivate_target(struct nfc_dev *nfc_dev, { } -static int hci_data_exchange(struct nfc_dev *nfc_dev, struct nfc_target *target, - struct sk_buff *skb, data_exchange_cb_t cb, - void *cb_context) +static int hci_transceive(struct nfc_dev *nfc_dev, struct nfc_target *target, + struct sk_buff *skb, data_exchange_cb_t cb, + void *cb_context) { struct nfc_hci_dev *hdev = nfc_get_drvdata(nfc_dev); int r; @@ -579,7 +580,7 @@ static struct nfc_ops hci_nfc_ops = { .stop_poll = hci_stop_poll, .activate_target = hci_activate_target, .deactivate_target = hci_deactivate_target, - .data_exchange = hci_data_exchange, + .im_transceive = hci_transceive, .check_presence = hci_check_presence, }; diff --git a/net/nfc/hci/shdlc.c b/net/nfc/hci/shdlc.c index 5665dc6d893a..6b836e6242b7 100644 --- a/net/nfc/hci/shdlc.c +++ b/net/nfc/hci/shdlc.c @@ -765,14 +765,16 @@ static int nfc_shdlc_xmit(struct nfc_hci_dev *hdev, struct sk_buff *skb) return 0; } -static int nfc_shdlc_start_poll(struct nfc_hci_dev *hdev, u32 protocols) +static int nfc_shdlc_start_poll(struct nfc_hci_dev *hdev, + u32 im_protocols, u32 tm_protocols) { struct nfc_shdlc *shdlc = nfc_hci_get_clientdata(hdev); pr_debug("\n"); if (shdlc->ops->start_poll) - return shdlc->ops->start_poll(shdlc, protocols); + return shdlc->ops->start_poll(shdlc, + im_protocols, tm_protocols); return 0; } diff --git a/net/nfc/llcp/commands.c b/net/nfc/llcp/commands.c index bf8ae4f0b90c..b982b5b890d7 100644 --- a/net/nfc/llcp/commands.c +++ b/net/nfc/llcp/commands.c @@ -51,7 +51,7 @@ static u8 llcp_tlv8(u8 *tlv, u8 type) return tlv[2]; } -static u8 llcp_tlv16(u8 *tlv, u8 type) +static u16 llcp_tlv16(u8 *tlv, u8 type) { if (tlv[0] != type || tlv[1] != llcp_tlv_length[tlv[0]]) return 0; @@ -67,7 +67,7 @@ static u8 llcp_tlv_version(u8 *tlv) static u16 llcp_tlv_miux(u8 *tlv) { - return llcp_tlv16(tlv, LLCP_TLV_MIUX) & 0x7f; + return llcp_tlv16(tlv, LLCP_TLV_MIUX) & 0x7ff; } static u16 llcp_tlv_wks(u8 *tlv) @@ -117,8 +117,8 @@ u8 *nfc_llcp_build_tlv(u8 type, u8 *value, u8 value_length, u8 *tlv_length) return tlv; } -int nfc_llcp_parse_tlv(struct nfc_llcp_local *local, - u8 *tlv_array, u16 tlv_array_len) +int nfc_llcp_parse_gb_tlv(struct nfc_llcp_local *local, + u8 *tlv_array, u16 tlv_array_len) { u8 *tlv = tlv_array, type, length, offset = 0; @@ -149,8 +149,45 @@ int nfc_llcp_parse_tlv(struct nfc_llcp_local *local, case LLCP_TLV_OPT: local->remote_opt = llcp_tlv_opt(tlv); break; + default: + pr_err("Invalid gt tlv value 0x%x\n", type); + break; + } + + offset += length + 2; + tlv += length + 2; + } + + pr_debug("version 0x%x miu %d lto %d opt 0x%x wks 0x%x\n", + local->remote_version, local->remote_miu, + local->remote_lto, local->remote_opt, + local->remote_wks); + + return 0; +} + +int nfc_llcp_parse_connection_tlv(struct nfc_llcp_sock *sock, + u8 *tlv_array, u16 tlv_array_len) +{ + u8 *tlv = tlv_array, type, length, offset = 0; + + pr_debug("TLV array length %d\n", tlv_array_len); + + if (sock == NULL) + return -ENOTCONN; + + while (offset < tlv_array_len) { + type = tlv[0]; + length = tlv[1]; + + pr_debug("type 0x%x length %d\n", type, length); + + switch (type) { + case LLCP_TLV_MIUX: + sock->miu = llcp_tlv_miux(tlv) + 128; + break; case LLCP_TLV_RW: - local->remote_rw = llcp_tlv_rw(tlv); + sock->rw = llcp_tlv_rw(tlv); break; case LLCP_TLV_SN: break; @@ -163,10 +200,7 @@ int nfc_llcp_parse_tlv(struct nfc_llcp_local *local, tlv += length + 2; } - pr_debug("version 0x%x miu %d lto %d opt 0x%x wks 0x%x rw %d\n", - local->remote_version, local->remote_miu, - local->remote_lto, local->remote_opt, - local->remote_wks, local->remote_rw); + pr_debug("sock %p rw %d miu %d\n", sock, sock->rw, sock->miu); return 0; } @@ -474,7 +508,7 @@ int nfc_llcp_send_i_frame(struct nfc_llcp_sock *sock, while (remaining_len > 0) { - frag_len = min_t(size_t, local->remote_miu, remaining_len); + frag_len = min_t(size_t, sock->miu, remaining_len); pr_debug("Fragment %zd bytes remaining %zd", frag_len, remaining_len); diff --git a/net/nfc/llcp/llcp.c b/net/nfc/llcp/llcp.c index 42994fac26d6..5d503eeb15a1 100644 --- a/net/nfc/llcp/llcp.c +++ b/net/nfc/llcp/llcp.c @@ -31,47 +31,41 @@ static u8 llcp_magic[3] = {0x46, 0x66, 0x6d}; static struct list_head llcp_devices; -static void nfc_llcp_socket_release(struct nfc_llcp_local *local) +void nfc_llcp_sock_link(struct llcp_sock_list *l, struct sock *sk) { - struct nfc_llcp_sock *parent, *s, *n; - struct sock *sk, *parent_sk; - int i; - - mutex_lock(&local->socket_lock); - - for (i = 0; i < LLCP_MAX_SAP; i++) { - parent = local->sockets[i]; - if (parent == NULL) - continue; - - /* Release all child sockets */ - list_for_each_entry_safe(s, n, &parent->list, list) { - list_del_init(&s->list); - sk = &s->sk; - - lock_sock(sk); - - if (sk->sk_state == LLCP_CONNECTED) - nfc_put_device(s->dev); + write_lock(&l->lock); + sk_add_node(sk, &l->head); + write_unlock(&l->lock); +} - sk->sk_state = LLCP_CLOSED; +void nfc_llcp_sock_unlink(struct llcp_sock_list *l, struct sock *sk) +{ + write_lock(&l->lock); + sk_del_node_init(sk); + write_unlock(&l->lock); +} - release_sock(sk); +static void nfc_llcp_socket_release(struct nfc_llcp_local *local) +{ + struct sock *sk; + struct hlist_node *node, *tmp; + struct nfc_llcp_sock *llcp_sock; - sock_orphan(sk); + write_lock(&local->sockets.lock); - s->local = NULL; - } + sk_for_each_safe(sk, node, tmp, &local->sockets.head) { + llcp_sock = nfc_llcp_sock(sk); - parent_sk = &parent->sk; + lock_sock(sk); - lock_sock(parent_sk); + if (sk->sk_state == LLCP_CONNECTED) + nfc_put_device(llcp_sock->dev); - if (parent_sk->sk_state == LLCP_LISTEN) { + if (sk->sk_state == LLCP_LISTEN) { struct nfc_llcp_sock *lsk, *n; struct sock *accept_sk; - list_for_each_entry_safe(lsk, n, &parent->accept_queue, + list_for_each_entry_safe(lsk, n, &llcp_sock->accept_queue, accept_queue) { accept_sk = &lsk->sk; lock_sock(accept_sk); @@ -83,24 +77,53 @@ static void nfc_llcp_socket_release(struct nfc_llcp_local *local) release_sock(accept_sk); sock_orphan(accept_sk); - - lsk->local = NULL; } } - if (parent_sk->sk_state == LLCP_CONNECTED) - nfc_put_device(parent->dev); - - parent_sk->sk_state = LLCP_CLOSED; + sk->sk_state = LLCP_CLOSED; - release_sock(parent_sk); + release_sock(sk); - sock_orphan(parent_sk); + sock_orphan(sk); - parent->local = NULL; + sk_del_node_init(sk); } - mutex_unlock(&local->socket_lock); + write_unlock(&local->sockets.lock); +} + +struct nfc_llcp_local *nfc_llcp_local_get(struct nfc_llcp_local *local) +{ + kref_get(&local->ref); + + return local; +} + +static void local_release(struct kref *ref) +{ + struct nfc_llcp_local *local; + + local = container_of(ref, struct nfc_llcp_local, ref); + + list_del(&local->list); + nfc_llcp_socket_release(local); + del_timer_sync(&local->link_timer); + skb_queue_purge(&local->tx_queue); + destroy_workqueue(local->tx_wq); + destroy_workqueue(local->rx_wq); + destroy_workqueue(local->timeout_wq); + kfree_skb(local->rx_pending); + kfree(local); +} + +int nfc_llcp_local_put(struct nfc_llcp_local *local) +{ + WARN_ON(local == NULL); + + if (local == NULL) + return 0; + + return kref_put(&local->ref, local_release); } static void nfc_llcp_clear_sdp(struct nfc_llcp_local *local) @@ -384,31 +407,9 @@ int nfc_llcp_set_remote_gb(struct nfc_dev *dev, u8 *gb, u8 gb_len) return -EINVAL; } - return nfc_llcp_parse_tlv(local, - &local->remote_gb[3], - local->remote_gb_len - 3); -} - -static void nfc_llcp_tx_work(struct work_struct *work) -{ - struct nfc_llcp_local *local = container_of(work, struct nfc_llcp_local, - tx_work); - struct sk_buff *skb; - - skb = skb_dequeue(&local->tx_queue); - if (skb != NULL) { - pr_debug("Sending pending skb\n"); - print_hex_dump(KERN_DEBUG, "LLCP Tx: ", DUMP_PREFIX_OFFSET, - 16, 1, skb->data, skb->len, true); - - nfc_data_exchange(local->dev, local->target_idx, - skb, nfc_llcp_recv, local); - } else { - nfc_llcp_send_symm(local->dev); - } - - mod_timer(&local->link_timer, - jiffies + msecs_to_jiffies(local->remote_lto)); + return nfc_llcp_parse_gb_tlv(local, + &local->remote_gb[3], + local->remote_gb_len - 3); } static u8 nfc_llcp_dsap(struct sk_buff *pdu) @@ -443,46 +444,146 @@ static void nfc_llcp_set_nrns(struct nfc_llcp_sock *sock, struct sk_buff *pdu) sock->recv_ack_n = (sock->recv_n - 1) % 16; } +static void nfc_llcp_tx_work(struct work_struct *work) +{ + struct nfc_llcp_local *local = container_of(work, struct nfc_llcp_local, + tx_work); + struct sk_buff *skb; + struct sock *sk; + struct nfc_llcp_sock *llcp_sock; + + skb = skb_dequeue(&local->tx_queue); + if (skb != NULL) { + sk = skb->sk; + llcp_sock = nfc_llcp_sock(sk); + if (llcp_sock != NULL) { + int ret; + + pr_debug("Sending pending skb\n"); + print_hex_dump(KERN_DEBUG, "LLCP Tx: ", + DUMP_PREFIX_OFFSET, 16, 1, + skb->data, skb->len, true); + + ret = nfc_data_exchange(local->dev, local->target_idx, + skb, nfc_llcp_recv, local); + + if (!ret && nfc_llcp_ptype(skb) == LLCP_PDU_I) { + skb = skb_get(skb); + skb_queue_tail(&llcp_sock->tx_pending_queue, + skb); + } + } else { + nfc_llcp_send_symm(local->dev); + } + } else { + nfc_llcp_send_symm(local->dev); + } + + mod_timer(&local->link_timer, + jiffies + msecs_to_jiffies(2 * local->remote_lto)); +} + +static struct nfc_llcp_sock *nfc_llcp_connecting_sock_get(struct nfc_llcp_local *local, + u8 ssap) +{ + struct sock *sk; + struct nfc_llcp_sock *llcp_sock; + struct hlist_node *node; + + read_lock(&local->connecting_sockets.lock); + + sk_for_each(sk, node, &local->connecting_sockets.head) { + llcp_sock = nfc_llcp_sock(sk); + + if (llcp_sock->ssap == ssap) { + sock_hold(&llcp_sock->sk); + goto out; + } + } + + llcp_sock = NULL; + +out: + read_unlock(&local->connecting_sockets.lock); + + return llcp_sock; +} + static struct nfc_llcp_sock *nfc_llcp_sock_get(struct nfc_llcp_local *local, u8 ssap, u8 dsap) { - struct nfc_llcp_sock *sock, *llcp_sock, *n; + struct sock *sk; + struct hlist_node *node; + struct nfc_llcp_sock *llcp_sock; pr_debug("ssap dsap %d %d\n", ssap, dsap); if (ssap == 0 && dsap == 0) return NULL; - mutex_lock(&local->socket_lock); - sock = local->sockets[ssap]; - if (sock == NULL) { - mutex_unlock(&local->socket_lock); - return NULL; - } + read_lock(&local->sockets.lock); - pr_debug("root dsap %d (%d)\n", sock->dsap, dsap); + llcp_sock = NULL; - if (sock->dsap == dsap) { - sock_hold(&sock->sk); - mutex_unlock(&local->socket_lock); - return sock; + sk_for_each(sk, node, &local->sockets.head) { + llcp_sock = nfc_llcp_sock(sk); + + if (llcp_sock->ssap == ssap && + llcp_sock->dsap == dsap) + break; } - list_for_each_entry_safe(llcp_sock, n, &sock->list, list) { - pr_debug("llcp_sock %p sk %p dsap %d\n", llcp_sock, - &llcp_sock->sk, llcp_sock->dsap); - if (llcp_sock->dsap == dsap) { - sock_hold(&llcp_sock->sk); - mutex_unlock(&local->socket_lock); - return llcp_sock; - } + read_unlock(&local->sockets.lock); + + if (llcp_sock == NULL) + return NULL; + + sock_hold(&llcp_sock->sk); + + return llcp_sock; +} + +static struct nfc_llcp_sock *nfc_llcp_sock_get_sn(struct nfc_llcp_local *local, + u8 *sn, size_t sn_len) +{ + struct sock *sk; + struct hlist_node *node; + struct nfc_llcp_sock *llcp_sock; + + pr_debug("sn %zd\n", sn_len); + + if (sn == NULL || sn_len == 0) + return NULL; + + read_lock(&local->sockets.lock); + + llcp_sock = NULL; + + sk_for_each(sk, node, &local->sockets.head) { + llcp_sock = nfc_llcp_sock(sk); + + if (llcp_sock->sk.sk_state != LLCP_LISTEN) + continue; + + if (llcp_sock->service_name == NULL || + llcp_sock->service_name_len == 0) + continue; + + if (llcp_sock->service_name_len != sn_len) + continue; + + if (memcmp(sn, llcp_sock->service_name, sn_len) == 0) + break; } - pr_err("Could not find socket for %d %d\n", ssap, dsap); + read_unlock(&local->sockets.lock); - mutex_unlock(&local->socket_lock); + if (llcp_sock == NULL) + return NULL; - return NULL; + sock_hold(&llcp_sock->sk); + + return llcp_sock; } static void nfc_llcp_sock_put(struct nfc_llcp_sock *sock) @@ -518,35 +619,19 @@ static void nfc_llcp_recv_connect(struct nfc_llcp_local *local, { struct sock *new_sk, *parent; struct nfc_llcp_sock *sock, *new_sock; - u8 dsap, ssap, bound_sap, reason; + u8 dsap, ssap, reason; dsap = nfc_llcp_dsap(skb); ssap = nfc_llcp_ssap(skb); pr_debug("%d %d\n", dsap, ssap); - nfc_llcp_parse_tlv(local, &skb->data[LLCP_HEADER_SIZE], - skb->len - LLCP_HEADER_SIZE); - if (dsap != LLCP_SAP_SDP) { - bound_sap = dsap; - - mutex_lock(&local->socket_lock); - sock = local->sockets[dsap]; - if (sock == NULL) { - mutex_unlock(&local->socket_lock); + sock = nfc_llcp_sock_get(local, dsap, LLCP_SAP_SDP); + if (sock == NULL || sock->sk.sk_state != LLCP_LISTEN) { reason = LLCP_DM_NOBOUND; goto fail; } - - sock_hold(&sock->sk); - mutex_unlock(&local->socket_lock); - - lock_sock(&sock->sk); - - if (sock->dsap == LLCP_SAP_SDP && - sock->sk.sk_state == LLCP_LISTEN) - goto enqueue; } else { u8 *sn; size_t sn_len; @@ -559,40 +644,15 @@ static void nfc_llcp_recv_connect(struct nfc_llcp_local *local, pr_debug("Service name length %zu\n", sn_len); - mutex_lock(&local->socket_lock); - for (bound_sap = 0; bound_sap < LLCP_LOCAL_SAP_OFFSET; - bound_sap++) { - sock = local->sockets[bound_sap]; - if (sock == NULL) - continue; - - if (sock->service_name == NULL || - sock->service_name_len == 0) - continue; - - if (sock->service_name_len != sn_len) - continue; - - if (sock->dsap == LLCP_SAP_SDP && - sock->sk.sk_state == LLCP_LISTEN && - !memcmp(sn, sock->service_name, sn_len)) { - pr_debug("Found service name at SAP %d\n", - bound_sap); - sock_hold(&sock->sk); - mutex_unlock(&local->socket_lock); - - lock_sock(&sock->sk); - - goto enqueue; - } + sock = nfc_llcp_sock_get_sn(local, sn, sn_len); + if (sock == NULL) { + reason = LLCP_DM_NOBOUND; + goto fail; } - mutex_unlock(&local->socket_lock); } - reason = LLCP_DM_NOBOUND; - goto fail; + lock_sock(&sock->sk); -enqueue: parent = &sock->sk; if (sk_acceptq_is_full(parent)) { @@ -612,15 +672,19 @@ enqueue: new_sock = nfc_llcp_sock(new_sk); new_sock->dev = local->dev; - new_sock->local = local; + new_sock->local = nfc_llcp_local_get(local); + new_sock->miu = local->remote_miu; new_sock->nfc_protocol = sock->nfc_protocol; - new_sock->ssap = bound_sap; + new_sock->ssap = sock->ssap; new_sock->dsap = ssap; new_sock->parent = parent; + nfc_llcp_parse_connection_tlv(new_sock, &skb->data[LLCP_HEADER_SIZE], + skb->len - LLCP_HEADER_SIZE); + pr_debug("new sock %p sk %p\n", new_sock, &new_sock->sk); - list_add_tail(&new_sock->list, &sock->list); + nfc_llcp_sock_link(&local->sockets, new_sk); nfc_llcp_accept_enqueue(&sock->sk, new_sk); @@ -654,12 +718,12 @@ int nfc_llcp_queue_i_frames(struct nfc_llcp_sock *sock) pr_debug("Remote ready %d tx queue len %d remote rw %d", sock->remote_ready, skb_queue_len(&sock->tx_pending_queue), - local->remote_rw); + sock->rw); /* Try to queue some I frames for transmission */ while (sock->remote_ready && - skb_queue_len(&sock->tx_pending_queue) < local->remote_rw) { - struct sk_buff *pdu, *pending_pdu; + skb_queue_len(&sock->tx_pending_queue) < sock->rw) { + struct sk_buff *pdu; pdu = skb_dequeue(&sock->tx_queue); if (pdu == NULL) @@ -668,10 +732,7 @@ int nfc_llcp_queue_i_frames(struct nfc_llcp_sock *sock) /* Update N(S)/N(R) */ nfc_llcp_set_nrns(sock, pdu); - pending_pdu = skb_clone(pdu, GFP_KERNEL); - skb_queue_tail(&local->tx_queue, pdu); - skb_queue_tail(&sock->tx_pending_queue, pending_pdu); nr_frames++; } @@ -728,11 +789,21 @@ static void nfc_llcp_recv_hdlc(struct nfc_llcp_local *local, llcp_sock->send_ack_n = nr; - skb_queue_walk_safe(&llcp_sock->tx_pending_queue, s, tmp) - if (nfc_llcp_ns(s) <= nr) { - skb_unlink(s, &llcp_sock->tx_pending_queue); - kfree_skb(s); - } + /* Remove and free all skbs until ns == nr */ + skb_queue_walk_safe(&llcp_sock->tx_pending_queue, s, tmp) { + skb_unlink(s, &llcp_sock->tx_pending_queue); + kfree_skb(s); + + if (nfc_llcp_ns(s) == nr) + break; + } + + /* Re-queue the remaining skbs for transmission */ + skb_queue_reverse_walk_safe(&llcp_sock->tx_pending_queue, + s, tmp) { + skb_unlink(s, &llcp_sock->tx_pending_queue); + skb_queue_head(&local->tx_queue, s); + } } if (ptype == LLCP_PDU_RR) @@ -740,7 +811,7 @@ static void nfc_llcp_recv_hdlc(struct nfc_llcp_local *local, else if (ptype == LLCP_PDU_RNR) llcp_sock->remote_ready = false; - if (nfc_llcp_queue_i_frames(llcp_sock) == 0) + if (nfc_llcp_queue_i_frames(llcp_sock) == 0 && ptype == LLCP_PDU_I) nfc_llcp_send_rr(llcp_sock); release_sock(sk); @@ -791,11 +862,7 @@ static void nfc_llcp_recv_cc(struct nfc_llcp_local *local, struct sk_buff *skb) dsap = nfc_llcp_dsap(skb); ssap = nfc_llcp_ssap(skb); - llcp_sock = nfc_llcp_sock_get(local, dsap, ssap); - - if (llcp_sock == NULL) - llcp_sock = nfc_llcp_sock_get(local, dsap, LLCP_SAP_SDP); - + llcp_sock = nfc_llcp_connecting_sock_get(local, dsap); if (llcp_sock == NULL) { pr_err("Invalid CC\n"); nfc_llcp_send_dm(local, dsap, ssap, LLCP_DM_NOCONN); @@ -803,11 +870,15 @@ static void nfc_llcp_recv_cc(struct nfc_llcp_local *local, struct sk_buff *skb) return; } - llcp_sock->dsap = ssap; sk = &llcp_sock->sk; - nfc_llcp_parse_tlv(local, &skb->data[LLCP_HEADER_SIZE], - skb->len - LLCP_HEADER_SIZE); + /* Unlink from connecting and link to the client array */ + nfc_llcp_sock_unlink(&local->connecting_sockets, sk); + nfc_llcp_sock_link(&local->sockets, sk); + llcp_sock->dsap = ssap; + + nfc_llcp_parse_connection_tlv(llcp_sock, &skb->data[LLCP_HEADER_SIZE], + skb->len - LLCP_HEADER_SIZE); sk->sk_state = LLCP_CONNECTED; sk->sk_state_change(sk); @@ -891,6 +962,21 @@ void nfc_llcp_recv(void *data, struct sk_buff *skb, int err) return; } +int nfc_llcp_data_received(struct nfc_dev *dev, struct sk_buff *skb) +{ + struct nfc_llcp_local *local; + + local = nfc_llcp_find_local(dev); + if (local == NULL) + return -ENODEV; + + local->rx_pending = skb_get(skb); + del_timer(&local->link_timer); + queue_work(local->rx_wq, &local->rx_work); + + return 0; +} + void nfc_llcp_mac_is_down(struct nfc_dev *dev) { struct nfc_llcp_local *local; @@ -943,8 +1029,8 @@ int nfc_llcp_register_device(struct nfc_dev *ndev) local->dev = ndev; INIT_LIST_HEAD(&local->list); + kref_init(&local->ref); mutex_init(&local->sdp_lock); - mutex_init(&local->socket_lock); init_timer(&local->link_timer); local->link_timer.data = (unsigned long) local; local->link_timer.function = nfc_llcp_symm_timer; @@ -984,11 +1070,13 @@ int nfc_llcp_register_device(struct nfc_dev *ndev) goto err_rx_wq; } + local->sockets.lock = __RW_LOCK_UNLOCKED(local->sockets.lock); + local->connecting_sockets.lock = __RW_LOCK_UNLOCKED(local->connecting_sockets.lock); + nfc_llcp_build_gb(local); local->remote_miu = LLCP_DEFAULT_MIU; local->remote_lto = LLCP_DEFAULT_LTO; - local->remote_rw = LLCP_DEFAULT_RW; list_add(&llcp_devices, &local->list); @@ -1015,14 +1103,7 @@ void nfc_llcp_unregister_device(struct nfc_dev *dev) return; } - list_del(&local->list); - nfc_llcp_socket_release(local); - del_timer_sync(&local->link_timer); - skb_queue_purge(&local->tx_queue); - destroy_workqueue(local->tx_wq); - destroy_workqueue(local->rx_wq); - kfree_skb(local->rx_pending); - kfree(local); + nfc_llcp_local_put(local); } int __init nfc_llcp_init(void) diff --git a/net/nfc/llcp/llcp.h b/net/nfc/llcp/llcp.h index 50680ce5ae43..7286c86982ff 100644 --- a/net/nfc/llcp/llcp.h +++ b/net/nfc/llcp/llcp.h @@ -40,12 +40,18 @@ enum llcp_state { struct nfc_llcp_sock; +struct llcp_sock_list { + struct hlist_head head; + rwlock_t lock; +}; + struct nfc_llcp_local { struct list_head list; struct nfc_dev *dev; + struct kref ref; + struct mutex sdp_lock; - struct mutex socket_lock; struct timer_list link_timer; struct sk_buff_head tx_queue; @@ -77,24 +83,26 @@ struct nfc_llcp_local { u16 remote_lto; u8 remote_opt; u16 remote_wks; - u8 remote_rw; /* sockets array */ - struct nfc_llcp_sock *sockets[LLCP_MAX_SAP]; + struct llcp_sock_list sockets; + struct llcp_sock_list connecting_sockets; }; struct nfc_llcp_sock { struct sock sk; - struct list_head list; struct nfc_dev *dev; struct nfc_llcp_local *local; u32 target_idx; u32 nfc_protocol; + /* Link parameters */ u8 ssap; u8 dsap; char *service_name; size_t service_name_len; + u8 rw; + u16 miu; /* Link variables */ u8 send_n; @@ -164,7 +172,11 @@ struct nfc_llcp_sock { #define LLCP_DM_REJ 0x03 +void nfc_llcp_sock_link(struct llcp_sock_list *l, struct sock *s); +void nfc_llcp_sock_unlink(struct llcp_sock_list *l, struct sock *s); struct nfc_llcp_local *nfc_llcp_find_local(struct nfc_dev *dev); +struct nfc_llcp_local *nfc_llcp_local_get(struct nfc_llcp_local *local); +int nfc_llcp_local_put(struct nfc_llcp_local *local); u8 nfc_llcp_get_sdp_ssap(struct nfc_llcp_local *local, struct nfc_llcp_sock *sock); u8 nfc_llcp_get_local_ssap(struct nfc_llcp_local *local); @@ -179,8 +191,10 @@ void nfc_llcp_accept_enqueue(struct sock *parent, struct sock *sk); struct sock *nfc_llcp_accept_dequeue(struct sock *sk, struct socket *newsock); /* TLV API */ -int nfc_llcp_parse_tlv(struct nfc_llcp_local *local, - u8 *tlv_array, u16 tlv_array_len); +int nfc_llcp_parse_gb_tlv(struct nfc_llcp_local *local, + u8 *tlv_array, u16 tlv_array_len); +int nfc_llcp_parse_connection_tlv(struct nfc_llcp_sock *sock, + u8 *tlv_array, u16 tlv_array_len); /* Commands API */ void nfc_llcp_recv(void *data, struct sk_buff *skb, int err); diff --git a/net/nfc/llcp/sock.c b/net/nfc/llcp/sock.c index 17a707db40eb..2c0b317344b7 100644 --- a/net/nfc/llcp/sock.c +++ b/net/nfc/llcp/sock.c @@ -111,7 +111,7 @@ static int llcp_sock_bind(struct socket *sock, struct sockaddr *addr, int alen) } llcp_sock->dev = dev; - llcp_sock->local = local; + llcp_sock->local = nfc_llcp_local_get(local); llcp_sock->nfc_protocol = llcp_addr.nfc_protocol; llcp_sock->service_name_len = min_t(unsigned int, llcp_addr.service_name_len, @@ -124,7 +124,7 @@ static int llcp_sock_bind(struct socket *sock, struct sockaddr *addr, int alen) if (llcp_sock->ssap == LLCP_MAX_SAP) goto put_dev; - local->sockets[llcp_sock->ssap] = llcp_sock; + nfc_llcp_sock_link(&local->sockets, sk); pr_debug("Socket bound to SAP %d\n", llcp_sock->ssap); @@ -382,15 +382,6 @@ static int llcp_sock_release(struct socket *sock) goto out; } - mutex_lock(&local->socket_lock); - - if (llcp_sock == local->sockets[llcp_sock->ssap]) - local->sockets[llcp_sock->ssap] = NULL; - else - list_del_init(&llcp_sock->list); - - mutex_unlock(&local->socket_lock); - lock_sock(sk); /* Send a DISC */ @@ -415,14 +406,12 @@ static int llcp_sock_release(struct socket *sock) } } - /* Freeing the SAP */ - if ((sk->sk_state == LLCP_CONNECTED - && llcp_sock->ssap > LLCP_LOCAL_SAP_OFFSET) || - sk->sk_state == LLCP_BOUND || sk->sk_state == LLCP_LISTEN) - nfc_llcp_put_ssap(llcp_sock->local, llcp_sock->ssap); + nfc_llcp_put_ssap(llcp_sock->local, llcp_sock->ssap); release_sock(sk); + nfc_llcp_sock_unlink(&local->sockets, sk); + out: sock_orphan(sk); sock_put(sk); @@ -490,7 +479,8 @@ static int llcp_sock_connect(struct socket *sock, struct sockaddr *_addr, } llcp_sock->dev = dev; - llcp_sock->local = local; + llcp_sock->local = nfc_llcp_local_get(local); + llcp_sock->miu = llcp_sock->local->remote_miu; llcp_sock->ssap = nfc_llcp_get_local_ssap(local); if (llcp_sock->ssap == LLCP_SAP_MAX) { ret = -ENOMEM; @@ -508,21 +498,26 @@ static int llcp_sock_connect(struct socket *sock, struct sockaddr *_addr, llcp_sock->service_name_len, GFP_KERNEL); - local->sockets[llcp_sock->ssap] = llcp_sock; + nfc_llcp_sock_link(&local->connecting_sockets, sk); ret = nfc_llcp_send_connect(llcp_sock); if (ret) - goto put_dev; + goto sock_unlink; ret = sock_wait_state(sk, LLCP_CONNECTED, sock_sndtimeo(sk, flags & O_NONBLOCK)); if (ret) - goto put_dev; + goto sock_unlink; release_sock(sk); return 0; +sock_unlink: + nfc_llcp_put_ssap(local, llcp_sock->ssap); + + nfc_llcp_sock_unlink(&local->connecting_sockets, sk); + put_dev: nfc_put_device(dev); @@ -687,13 +682,14 @@ struct sock *nfc_llcp_sock_alloc(struct socket *sock, int type, gfp_t gfp) llcp_sock->ssap = 0; llcp_sock->dsap = LLCP_SAP_SDP; + llcp_sock->rw = LLCP_DEFAULT_RW; + llcp_sock->miu = LLCP_DEFAULT_MIU; llcp_sock->send_n = llcp_sock->send_ack_n = 0; llcp_sock->recv_n = llcp_sock->recv_ack_n = 0; llcp_sock->remote_ready = 1; skb_queue_head_init(&llcp_sock->tx_queue); skb_queue_head_init(&llcp_sock->tx_pending_queue); skb_queue_head_init(&llcp_sock->tx_backlog_queue); - INIT_LIST_HEAD(&llcp_sock->list); INIT_LIST_HEAD(&llcp_sock->accept_queue); if (sock != NULL) @@ -704,8 +700,6 @@ struct sock *nfc_llcp_sock_alloc(struct socket *sock, int type, gfp_t gfp) void nfc_llcp_sock_free(struct nfc_llcp_sock *sock) { - struct nfc_llcp_local *local = sock->local; - kfree(sock->service_name); skb_queue_purge(&sock->tx_queue); @@ -714,12 +708,9 @@ void nfc_llcp_sock_free(struct nfc_llcp_sock *sock) list_del_init(&sock->accept_queue); - if (local != NULL && sock == local->sockets[sock->ssap]) - local->sockets[sock->ssap] = NULL; - else - list_del_init(&sock->list); - sock->parent = NULL; + + nfc_llcp_local_put(sock->local); } static int llcp_sock_create(struct net *net, struct socket *sock, diff --git a/net/nfc/nci/core.c b/net/nfc/nci/core.c index d560e6f13072..766a02b1dfa1 100644 --- a/net/nfc/nci/core.c +++ b/net/nfc/nci/core.c @@ -387,7 +387,8 @@ static int nci_dev_down(struct nfc_dev *nfc_dev) return nci_close_device(ndev); } -static int nci_start_poll(struct nfc_dev *nfc_dev, __u32 protocols) +static int nci_start_poll(struct nfc_dev *nfc_dev, + __u32 im_protocols, __u32 tm_protocols) { struct nci_dev *ndev = nfc_get_drvdata(nfc_dev); int rc; @@ -413,11 +414,11 @@ static int nci_start_poll(struct nfc_dev *nfc_dev, __u32 protocols) return -EBUSY; } - rc = nci_request(ndev, nci_rf_discover_req, protocols, + rc = nci_request(ndev, nci_rf_discover_req, im_protocols, msecs_to_jiffies(NCI_RF_DISC_TIMEOUT)); if (!rc) - ndev->poll_prots = protocols; + ndev->poll_prots = im_protocols; return rc; } @@ -521,9 +522,9 @@ static void nci_deactivate_target(struct nfc_dev *nfc_dev, } } -static int nci_data_exchange(struct nfc_dev *nfc_dev, struct nfc_target *target, - struct sk_buff *skb, - data_exchange_cb_t cb, void *cb_context) +static int nci_transceive(struct nfc_dev *nfc_dev, struct nfc_target *target, + struct sk_buff *skb, + data_exchange_cb_t cb, void *cb_context) { struct nci_dev *ndev = nfc_get_drvdata(nfc_dev); int rc; @@ -556,7 +557,7 @@ static struct nfc_ops nci_nfc_ops = { .stop_poll = nci_stop_poll, .activate_target = nci_activate_target, .deactivate_target = nci_deactivate_target, - .data_exchange = nci_data_exchange, + .im_transceive = nci_transceive, }; /* ---- Interface to NCI drivers ---- */ diff --git a/net/nfc/netlink.c b/net/nfc/netlink.c index 581d419083aa..03c31db38f12 100644 --- a/net/nfc/netlink.c +++ b/net/nfc/netlink.c @@ -49,6 +49,8 @@ static const struct nla_policy nfc_genl_policy[NFC_ATTR_MAX + 1] = { [NFC_ATTR_COMM_MODE] = { .type = NLA_U8 }, [NFC_ATTR_RF_MODE] = { .type = NLA_U8 }, [NFC_ATTR_DEVICE_POWERED] = { .type = NLA_U8 }, + [NFC_ATTR_IM_PROTOCOLS] = { .type = NLA_U32 }, + [NFC_ATTR_TM_PROTOCOLS] = { .type = NLA_U32 }, }; static int nfc_genl_send_target(struct sk_buff *msg, struct nfc_target *target, @@ -219,6 +221,68 @@ free_msg: return -EMSGSIZE; } +int nfc_genl_tm_activated(struct nfc_dev *dev, u32 protocol) +{ + struct sk_buff *msg; + void *hdr; + + msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); + if (!msg) + return -ENOMEM; + + hdr = genlmsg_put(msg, 0, 0, &nfc_genl_family, 0, + NFC_EVENT_TM_ACTIVATED); + if (!hdr) + goto free_msg; + + if (nla_put_u32(msg, NFC_ATTR_DEVICE_INDEX, dev->idx)) + goto nla_put_failure; + if (nla_put_u32(msg, NFC_ATTR_TM_PROTOCOLS, protocol)) + goto nla_put_failure; + + genlmsg_end(msg, hdr); + + genlmsg_multicast(msg, 0, nfc_genl_event_mcgrp.id, GFP_KERNEL); + + return 0; + +nla_put_failure: + genlmsg_cancel(msg, hdr); +free_msg: + nlmsg_free(msg); + return -EMSGSIZE; +} + +int nfc_genl_tm_deactivated(struct nfc_dev *dev) +{ + struct sk_buff *msg; + void *hdr; + + msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); + if (!msg) + return -ENOMEM; + + hdr = genlmsg_put(msg, 0, 0, &nfc_genl_family, 0, + NFC_EVENT_TM_DEACTIVATED); + if (!hdr) + goto free_msg; + + if (nla_put_u32(msg, NFC_ATTR_DEVICE_INDEX, dev->idx)) + goto nla_put_failure; + + genlmsg_end(msg, hdr); + + genlmsg_multicast(msg, 0, nfc_genl_event_mcgrp.id, GFP_KERNEL); + + return 0; + +nla_put_failure: + genlmsg_cancel(msg, hdr); +free_msg: + nlmsg_free(msg); + return -EMSGSIZE; +} + int nfc_genl_device_added(struct nfc_dev *dev) { struct sk_buff *msg; @@ -519,16 +583,25 @@ static int nfc_genl_start_poll(struct sk_buff *skb, struct genl_info *info) struct nfc_dev *dev; int rc; u32 idx; - u32 protocols; + u32 im_protocols = 0, tm_protocols = 0; pr_debug("Poll start\n"); if (!info->attrs[NFC_ATTR_DEVICE_INDEX] || - !info->attrs[NFC_ATTR_PROTOCOLS]) + ((!info->attrs[NFC_ATTR_IM_PROTOCOLS] && + !info->attrs[NFC_ATTR_PROTOCOLS]) && + !info->attrs[NFC_ATTR_TM_PROTOCOLS])) return -EINVAL; idx = nla_get_u32(info->attrs[NFC_ATTR_DEVICE_INDEX]); - protocols = nla_get_u32(info->attrs[NFC_ATTR_PROTOCOLS]); + + if (info->attrs[NFC_ATTR_TM_PROTOCOLS]) + tm_protocols = nla_get_u32(info->attrs[NFC_ATTR_TM_PROTOCOLS]); + + if (info->attrs[NFC_ATTR_IM_PROTOCOLS]) + im_protocols = nla_get_u32(info->attrs[NFC_ATTR_IM_PROTOCOLS]); + else if (info->attrs[NFC_ATTR_PROTOCOLS]) + im_protocols = nla_get_u32(info->attrs[NFC_ATTR_PROTOCOLS]); dev = nfc_get_device(idx); if (!dev) @@ -536,7 +609,7 @@ static int nfc_genl_start_poll(struct sk_buff *skb, struct genl_info *info) mutex_lock(&dev->genl_data.genl_data_mutex); - rc = nfc_start_poll(dev, protocols); + rc = nfc_start_poll(dev, im_protocols, tm_protocols); if (!rc) dev->genl_data.poll_req_pid = info->snd_pid; diff --git a/net/nfc/nfc.h b/net/nfc/nfc.h index 3dd4232ae664..c5e42b79a418 100644 --- a/net/nfc/nfc.h +++ b/net/nfc/nfc.h @@ -55,6 +55,7 @@ int nfc_llcp_register_device(struct nfc_dev *dev); void nfc_llcp_unregister_device(struct nfc_dev *dev); int nfc_llcp_set_remote_gb(struct nfc_dev *dev, u8 *gb, u8 gb_len); u8 *nfc_llcp_general_bytes(struct nfc_dev *dev, size_t *general_bytes_len); +int nfc_llcp_data_received(struct nfc_dev *dev, struct sk_buff *skb); int __init nfc_llcp_init(void); void nfc_llcp_exit(void); @@ -90,6 +91,12 @@ static inline u8 *nfc_llcp_general_bytes(struct nfc_dev *dev, size_t *gb_len) return NULL; } +static inline int nfc_llcp_data_received(struct nfc_dev *dev, + struct sk_buff *skb) +{ + return 0; +} + static inline int nfc_llcp_init(void) { return 0; @@ -128,6 +135,9 @@ int nfc_genl_dep_link_up_event(struct nfc_dev *dev, u32 target_idx, u8 comm_mode, u8 rf_mode); int nfc_genl_dep_link_down_event(struct nfc_dev *dev); +int nfc_genl_tm_activated(struct nfc_dev *dev, u32 protocol); +int nfc_genl_tm_deactivated(struct nfc_dev *dev); + struct nfc_dev *nfc_get_device(unsigned int idx); static inline void nfc_put_device(struct nfc_dev *dev) @@ -158,7 +168,7 @@ int nfc_dev_up(struct nfc_dev *dev); int nfc_dev_down(struct nfc_dev *dev); -int nfc_start_poll(struct nfc_dev *dev, u32 protocols); +int nfc_start_poll(struct nfc_dev *dev, u32 im_protocols, u32 tm_protocols); int nfc_stop_poll(struct nfc_dev *dev); diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index 0f661745df0f..8a10d5b3c832 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -592,7 +592,7 @@ static void init_prb_bdqc(struct packet_sock *po, p1->knxt_seq_num = 1; p1->pkbdq = pg_vec; pbd = (struct tpacket_block_desc *)pg_vec[0].buffer; - p1->pkblk_start = (char *)pg_vec[0].buffer; + p1->pkblk_start = pg_vec[0].buffer; p1->kblk_size = req_u->req3.tp_block_size; p1->knum_blocks = req_u->req3.tp_block_nr; p1->hdrlen = po->tp_hdrlen; @@ -824,8 +824,7 @@ static void prb_open_block(struct tpacket_kbdq_core *pkc1, h1->ts_first_pkt.ts_sec = ts.tv_sec; h1->ts_first_pkt.ts_nsec = ts.tv_nsec; pkc1->pkblk_start = (char *)pbd1; - pkc1->nxt_offset = (char *)(pkc1->pkblk_start + - BLK_PLUS_PRIV(pkc1->blk_sizeof_priv)); + pkc1->nxt_offset = pkc1->pkblk_start + BLK_PLUS_PRIV(pkc1->blk_sizeof_priv); BLOCK_O2FP(pbd1) = (__u32)BLK_PLUS_PRIV(pkc1->blk_sizeof_priv); BLOCK_O2PRIV(pbd1) = BLK_HDR_LEN; pbd1->version = pkc1->version; @@ -1018,7 +1017,7 @@ static void *__packet_lookup_frame_in_block(struct packet_sock *po, struct tpacket_block_desc *pbd; char *curr, *end; - pkc = GET_PBDQC_FROM_RB(((struct packet_ring_buffer *)&po->rx_ring)); + pkc = GET_PBDQC_FROM_RB(&po->rx_ring); pbd = GET_CURR_PBLOCK_DESC_FROM_CORE(pkc); /* Queue is frozen when user space is lagging behind */ @@ -1044,7 +1043,7 @@ static void *__packet_lookup_frame_in_block(struct packet_sock *po, smp_mb(); curr = pkc->nxt_offset; pkc->skb = skb; - end = (char *) ((char *)pbd + pkc->kblk_size); + end = (char *)pbd + pkc->kblk_size; /* first try the current block */ if (curr+TOTAL_PKT_LEN_INCL_ALIGN(len) < end) { @@ -1476,7 +1475,7 @@ static int packet_sendmsg_spkt(struct kiocb *iocb, struct socket *sock, * Find the device first to size check it */ - saddr->spkt_device[13] = 0; + saddr->spkt_device[sizeof(saddr->spkt_device) - 1] = 0; retry: rcu_read_lock(); dev = dev_get_by_name_rcu(sock_net(sk), saddr->spkt_device); diff --git a/net/rfkill/core.c b/net/rfkill/core.c index f974961754ca..752b72360ebc 100644 --- a/net/rfkill/core.c +++ b/net/rfkill/core.c @@ -325,7 +325,7 @@ static void __rfkill_switch_all(const enum rfkill_type type, bool blocked) rfkill_global_states[type].cur = blocked; list_for_each_entry(rfkill, &rfkill_list, node) { - if (rfkill->type != type) + if (rfkill->type != type && type != RFKILL_TYPE_ALL) continue; rfkill_set_block(rfkill, blocked); diff --git a/net/rxrpc/ar-error.c b/net/rxrpc/ar-error.c index 5d6b572a6704..a9206087b4d7 100644 --- a/net/rxrpc/ar-error.c +++ b/net/rxrpc/ar-error.c @@ -81,10 +81,6 @@ void rxrpc_UDP_error_report(struct sock *sk) _net("I/F MTU %u", mtu); } - /* ip_rt_frag_needed() may have eaten the info */ - if (mtu == 0) - mtu = ntohs(icmp_hdr(skb)->un.frag.mtu); - if (mtu == 0) { /* they didn't give us a size, estimate one */ if (mtu > 1500) { diff --git a/net/tipc/port.c b/net/tipc/port.c index 2ad37a4db376..a1e828989d7a 100644 --- a/net/tipc/port.c +++ b/net/tipc/port.c @@ -909,8 +909,8 @@ int tipc_createport(void *usr_handle, warn("Port creation failed, no memory\n"); return -ENOMEM; } - p_ptr = (struct tipc_port *)tipc_createport_raw(NULL, port_dispatcher, - port_wakeup, importance); + p_ptr = tipc_createport_raw(NULL, port_dispatcher, port_wakeup, + importance); if (!p_ptr) { kfree(up_ptr); return -ENOMEM; @@ -1078,8 +1078,7 @@ int tipc_disconnect_port(struct tipc_port *tp_ptr) if (tp_ptr->connected) { tp_ptr->connected = 0; /* let timer expire on it's own to avoid deadlock! */ - tipc_nodesub_unsubscribe( - &((struct tipc_port *)tp_ptr)->subscription); + tipc_nodesub_unsubscribe(&tp_ptr->subscription); res = 0; } else { res = -ENOTCONN; @@ -1099,7 +1098,7 @@ int tipc_disconnect(u32 ref) p_ptr = tipc_port_lock(ref); if (!p_ptr) return -EINVAL; - res = tipc_disconnect_port((struct tipc_port *)p_ptr); + res = tipc_disconnect_port(p_ptr); tipc_port_unlock(p_ptr); return res; } diff --git a/net/tipc/socket.c b/net/tipc/socket.c index 5577a447f531..11a863d81421 100644 --- a/net/tipc/socket.c +++ b/net/tipc/socket.c @@ -54,7 +54,7 @@ struct tipc_sock { }; #define tipc_sk(sk) ((struct tipc_sock *)(sk)) -#define tipc_sk_port(sk) ((struct tipc_port *)(tipc_sk(sk)->p)) +#define tipc_sk_port(sk) (tipc_sk(sk)->p) #define tipc_rx_ready(sock) (!skb_queue_empty(&sock->sk->sk_receive_queue) || \ (sock->state == SS_DISCONNECTING)) diff --git a/net/unix/af_unix.c b/net/unix/af_unix.c index 641f2e47f165..79981d97bc9c 100644 --- a/net/unix/af_unix.c +++ b/net/unix/af_unix.c @@ -115,15 +115,24 @@ #include <net/checksum.h> #include <linux/security.h> -struct hlist_head unix_socket_table[UNIX_HASH_SIZE + 1]; +struct hlist_head unix_socket_table[2 * UNIX_HASH_SIZE]; EXPORT_SYMBOL_GPL(unix_socket_table); DEFINE_SPINLOCK(unix_table_lock); EXPORT_SYMBOL_GPL(unix_table_lock); static atomic_long_t unix_nr_socks; -#define unix_sockets_unbound (&unix_socket_table[UNIX_HASH_SIZE]) -#define UNIX_ABSTRACT(sk) (unix_sk(sk)->addr->hash != UNIX_HASH_SIZE) +static struct hlist_head *unix_sockets_unbound(void *addr) +{ + unsigned long hash = (unsigned long)addr; + + hash ^= hash >> 16; + hash ^= hash >> 8; + hash %= UNIX_HASH_SIZE; + return &unix_socket_table[UNIX_HASH_SIZE + hash]; +} + +#define UNIX_ABSTRACT(sk) (unix_sk(sk)->addr->hash < UNIX_HASH_SIZE) #ifdef CONFIG_SECURITY_NETWORK static void unix_get_secdata(struct scm_cookie *scm, struct sk_buff *skb) @@ -645,7 +654,7 @@ static struct sock *unix_create1(struct net *net, struct socket *sock) INIT_LIST_HEAD(&u->link); mutex_init(&u->readlock); /* single task reading lock */ init_waitqueue_head(&u->peer_wait); - unix_insert_socket(unix_sockets_unbound, sk); + unix_insert_socket(unix_sockets_unbound(sk), sk); out: if (sk == NULL) atomic_long_dec(&unix_nr_socks); @@ -2239,47 +2248,54 @@ static unsigned int unix_dgram_poll(struct file *file, struct socket *sock, } #ifdef CONFIG_PROC_FS -static struct sock *first_unix_socket(int *i) + +#define BUCKET_SPACE (BITS_PER_LONG - (UNIX_HASH_BITS + 1) - 1) + +#define get_bucket(x) ((x) >> BUCKET_SPACE) +#define get_offset(x) ((x) & ((1L << BUCKET_SPACE) - 1)) +#define set_bucket_offset(b, o) ((b) << BUCKET_SPACE | (o)) + +static struct sock *unix_from_bucket(struct seq_file *seq, loff_t *pos) { - for (*i = 0; *i <= UNIX_HASH_SIZE; (*i)++) { - if (!hlist_empty(&unix_socket_table[*i])) - return __sk_head(&unix_socket_table[*i]); + unsigned long offset = get_offset(*pos); + unsigned long bucket = get_bucket(*pos); + struct sock *sk; + unsigned long count = 0; + + for (sk = sk_head(&unix_socket_table[bucket]); sk; sk = sk_next(sk)) { + if (sock_net(sk) != seq_file_net(seq)) + continue; + if (++count == offset) + break; } - return NULL; + + return sk; } -static struct sock *next_unix_socket(int *i, struct sock *s) +static struct sock *unix_next_socket(struct seq_file *seq, + struct sock *sk, + loff_t *pos) { - struct sock *next = sk_next(s); - /* More in this chain? */ - if (next) - return next; - /* Look for next non-empty chain. */ - for ((*i)++; *i <= UNIX_HASH_SIZE; (*i)++) { - if (!hlist_empty(&unix_socket_table[*i])) - return __sk_head(&unix_socket_table[*i]); + unsigned long bucket; + + while (sk > (struct sock *)SEQ_START_TOKEN) { + sk = sk_next(sk); + if (!sk) + goto next_bucket; + if (sock_net(sk) == seq_file_net(seq)) + return sk; } - return NULL; -} -struct unix_iter_state { - struct seq_net_private p; - int i; -}; + do { + sk = unix_from_bucket(seq, pos); + if (sk) + return sk; -static struct sock *unix_seq_idx(struct seq_file *seq, loff_t pos) -{ - struct unix_iter_state *iter = seq->private; - loff_t off = 0; - struct sock *s; +next_bucket: + bucket = get_bucket(*pos) + 1; + *pos = set_bucket_offset(bucket, 1); + } while (bucket < ARRAY_SIZE(unix_socket_table)); - for (s = first_unix_socket(&iter->i); s; s = next_unix_socket(&iter->i, s)) { - if (sock_net(s) != seq_file_net(seq)) - continue; - if (off == pos) - return s; - ++off; - } return NULL; } @@ -2287,22 +2303,20 @@ static void *unix_seq_start(struct seq_file *seq, loff_t *pos) __acquires(unix_table_lock) { spin_lock(&unix_table_lock); - return *pos ? unix_seq_idx(seq, *pos - 1) : SEQ_START_TOKEN; + + if (!*pos) + return SEQ_START_TOKEN; + + if (get_bucket(*pos) >= ARRAY_SIZE(unix_socket_table)) + return NULL; + + return unix_next_socket(seq, NULL, pos); } static void *unix_seq_next(struct seq_file *seq, void *v, loff_t *pos) { - struct unix_iter_state *iter = seq->private; - struct sock *sk = v; ++*pos; - - if (v == SEQ_START_TOKEN) - sk = first_unix_socket(&iter->i); - else - sk = next_unix_socket(&iter->i, sk); - while (sk && (sock_net(sk) != seq_file_net(seq))) - sk = next_unix_socket(&iter->i, sk); - return sk; + return unix_next_socket(seq, v, pos); } static void unix_seq_stop(struct seq_file *seq, void *v) @@ -2365,7 +2379,7 @@ static const struct seq_operations unix_seq_ops = { static int unix_seq_open(struct inode *inode, struct file *file) { return seq_open_net(inode, file, &unix_seq_ops, - sizeof(struct unix_iter_state)); + sizeof(struct seq_net_private)); } static const struct file_operations unix_seq_fops = { diff --git a/net/unix/diag.c b/net/unix/diag.c index 47d3002737f5..7e8a24bff34a 100644 --- a/net/unix/diag.c +++ b/net/unix/diag.c @@ -195,7 +195,9 @@ static int unix_diag_dump(struct sk_buff *skb, struct netlink_callback *cb) num = s_num = cb->args[1]; spin_lock(&unix_table_lock); - for (slot = s_slot; slot <= UNIX_HASH_SIZE; s_num = 0, slot++) { + for (slot = s_slot; + slot < ARRAY_SIZE(unix_socket_table); + s_num = 0, slot++) { struct sock *sk; struct hlist_node *node; @@ -228,7 +230,7 @@ static struct sock *unix_lookup_by_ino(int ino) struct sock *sk; spin_lock(&unix_table_lock); - for (i = 0; i <= UNIX_HASH_SIZE; i++) { + for (i = 0; i < ARRAY_SIZE(unix_socket_table); i++) { struct hlist_node *node; sk_for_each(sk, node, &unix_socket_table[i]) diff --git a/net/wireless/Kconfig b/net/wireless/Kconfig index 2e4444fedbe0..4d2b1ec6516f 100644 --- a/net/wireless/Kconfig +++ b/net/wireless/Kconfig @@ -114,24 +114,10 @@ config CFG80211_WEXT bool "cfg80211 wireless extensions compatibility" depends on CFG80211 select WEXT_CORE - default y help Enable this option if you need old userspace for wireless extensions with cfg80211-based drivers. -config WIRELESS_EXT_SYSFS - bool "Wireless extensions sysfs files" - depends on WEXT_CORE && SYSFS - help - This option enables the deprecated wireless statistics - files in /sys/class/net/*/wireless/. The same information - is available via the ioctls as well. - - Say N. If you know you have ancient tools requiring it, - like very old versions of hal (prior to 0.5.12 release), - say Y and update the tools as soon as possible as this - option will be removed soon. - config LIB80211 tristate "Common routines for IEEE802.11 drivers" default n diff --git a/net/wireless/chan.c b/net/wireless/chan.c index 884801ac4dd0..c1999e45a07c 100644 --- a/net/wireless/chan.c +++ b/net/wireless/chan.c @@ -60,7 +60,7 @@ bool cfg80211_can_beacon_sec_chan(struct wiphy *wiphy, diff = -20; break; default: - return false; + return true; } sec_chan = ieee80211_get_channel(wiphy, chan->center_freq + diff); @@ -78,60 +78,17 @@ bool cfg80211_can_beacon_sec_chan(struct wiphy *wiphy, } EXPORT_SYMBOL(cfg80211_can_beacon_sec_chan); -int cfg80211_set_freq(struct cfg80211_registered_device *rdev, - struct wireless_dev *wdev, int freq, - enum nl80211_channel_type channel_type) +int cfg80211_set_monitor_channel(struct cfg80211_registered_device *rdev, + int freq, enum nl80211_channel_type chantype) { struct ieee80211_channel *chan; - int result; - - if (wdev && wdev->iftype == NL80211_IFTYPE_MONITOR) - wdev = NULL; - - if (wdev) { - ASSERT_WDEV_LOCK(wdev); - - if (!netif_running(wdev->netdev)) - return -ENETDOWN; - } - if (!rdev->ops->set_channel) + if (!rdev->ops->set_monitor_channel) return -EOPNOTSUPP; - chan = rdev_freq_to_chan(rdev, freq, channel_type); + chan = rdev_freq_to_chan(rdev, freq, chantype); if (!chan) return -EINVAL; - /* Both channels should be able to initiate communication */ - if (wdev && (wdev->iftype == NL80211_IFTYPE_ADHOC || - wdev->iftype == NL80211_IFTYPE_AP || - wdev->iftype == NL80211_IFTYPE_AP_VLAN || - wdev->iftype == NL80211_IFTYPE_MESH_POINT || - wdev->iftype == NL80211_IFTYPE_P2P_GO)) { - switch (channel_type) { - case NL80211_CHAN_HT40PLUS: - case NL80211_CHAN_HT40MINUS: - if (!cfg80211_can_beacon_sec_chan(&rdev->wiphy, chan, - channel_type)) { - printk(KERN_DEBUG - "cfg80211: Secondary channel not " - "allowed to initiate communication\n"); - return -EINVAL; - } - break; - default: - break; - } - } - - result = rdev->ops->set_channel(&rdev->wiphy, - wdev ? wdev->netdev : NULL, - chan, channel_type); - if (result) - return result; - - if (wdev) - wdev->channel = chan; - - return 0; + return rdev->ops->set_monitor_channel(&rdev->wiphy, chan, chantype); } diff --git a/net/wireless/core.h b/net/wireless/core.h index 8523f3878677..9348a47562a4 100644 --- a/net/wireless/core.h +++ b/net/wireless/core.h @@ -303,14 +303,17 @@ extern const struct mesh_config default_mesh_config; extern const struct mesh_setup default_mesh_setup; int __cfg80211_join_mesh(struct cfg80211_registered_device *rdev, struct net_device *dev, - const struct mesh_setup *setup, + struct mesh_setup *setup, const struct mesh_config *conf); int cfg80211_join_mesh(struct cfg80211_registered_device *rdev, struct net_device *dev, - const struct mesh_setup *setup, + struct mesh_setup *setup, const struct mesh_config *conf); int cfg80211_leave_mesh(struct cfg80211_registered_device *rdev, struct net_device *dev); +int cfg80211_set_mesh_freq(struct cfg80211_registered_device *rdev, + struct wireless_dev *wdev, int freq, + enum nl80211_channel_type channel_type); /* MLME */ int __cfg80211_mlme_auth(struct cfg80211_registered_device *rdev, @@ -441,9 +444,8 @@ cfg80211_can_add_interface(struct cfg80211_registered_device *rdev, struct ieee80211_channel * rdev_freq_to_chan(struct cfg80211_registered_device *rdev, int freq, enum nl80211_channel_type channel_type); -int cfg80211_set_freq(struct cfg80211_registered_device *rdev, - struct wireless_dev *wdev, int freq, - enum nl80211_channel_type channel_type); +int cfg80211_set_monitor_channel(struct cfg80211_registered_device *rdev, + int freq, enum nl80211_channel_type chantype); int ieee80211_get_ratemask(struct ieee80211_supported_band *sband, const u8 *rates, unsigned int n_rates, diff --git a/net/wireless/mesh.c b/net/wireless/mesh.c index 2749cb86b462..b44c736bf9cf 100644 --- a/net/wireless/mesh.c +++ b/net/wireless/mesh.c @@ -65,6 +65,9 @@ const struct mesh_config default_mesh_config = { }; const struct mesh_setup default_mesh_setup = { + /* cfg80211_join_mesh() will pick a channel if needed */ + .channel = NULL, + .channel_type = NL80211_CHAN_NO_HT, .sync_method = IEEE80211_SYNC_METHOD_NEIGHBOR_OFFSET, .path_sel_proto = IEEE80211_PATH_PROTOCOL_HWMP, .path_metric = IEEE80211_PATH_METRIC_AIRTIME, @@ -75,7 +78,7 @@ const struct mesh_setup default_mesh_setup = { int __cfg80211_join_mesh(struct cfg80211_registered_device *rdev, struct net_device *dev, - const struct mesh_setup *setup, + struct mesh_setup *setup, const struct mesh_config *conf) { struct wireless_dev *wdev = dev->ieee80211_ptr; @@ -101,6 +104,51 @@ int __cfg80211_join_mesh(struct cfg80211_registered_device *rdev, if (!rdev->ops->join_mesh) return -EOPNOTSUPP; + if (!setup->channel) { + /* if no channel explicitly given, use preset channel */ + setup->channel = wdev->preset_chan; + setup->channel_type = wdev->preset_chantype; + } + + if (!setup->channel) { + /* if we don't have that either, use the first usable channel */ + enum ieee80211_band band; + + for (band = 0; band < IEEE80211_NUM_BANDS; band++) { + struct ieee80211_supported_band *sband; + struct ieee80211_channel *chan; + int i; + + sband = rdev->wiphy.bands[band]; + if (!sband) + continue; + + for (i = 0; i < sband->n_channels; i++) { + chan = &sband->channels[i]; + if (chan->flags & (IEEE80211_CHAN_NO_IBSS | + IEEE80211_CHAN_PASSIVE_SCAN | + IEEE80211_CHAN_DISABLED | + IEEE80211_CHAN_RADAR)) + continue; + setup->channel = chan; + break; + } + + if (setup->channel) + break; + } + + /* no usable channel ... */ + if (!setup->channel) + return -EINVAL; + + setup->channel_type = NL80211_CHAN_NO_HT; + } + + if (!cfg80211_can_beacon_sec_chan(&rdev->wiphy, setup->channel, + setup->channel_type)) + return -EINVAL; + err = rdev->ops->join_mesh(&rdev->wiphy, dev, conf, setup); if (!err) { memcpy(wdev->ssid, setup->mesh_id, setup->mesh_id_len); @@ -112,7 +160,7 @@ int __cfg80211_join_mesh(struct cfg80211_registered_device *rdev, int cfg80211_join_mesh(struct cfg80211_registered_device *rdev, struct net_device *dev, - const struct mesh_setup *setup, + struct mesh_setup *setup, const struct mesh_config *conf) { struct wireless_dev *wdev = dev->ieee80211_ptr; @@ -125,6 +173,45 @@ int cfg80211_join_mesh(struct cfg80211_registered_device *rdev, return err; } +int cfg80211_set_mesh_freq(struct cfg80211_registered_device *rdev, + struct wireless_dev *wdev, int freq, + enum nl80211_channel_type channel_type) +{ + struct ieee80211_channel *channel; + + channel = rdev_freq_to_chan(rdev, freq, channel_type); + if (!channel || !cfg80211_can_beacon_sec_chan(&rdev->wiphy, + channel, + channel_type)) { + return -EINVAL; + } + + /* + * Workaround for libertas (only!), it puts the interface + * into mesh mode but doesn't implement join_mesh. Instead, + * it is configured via sysfs and then joins the mesh when + * you set the channel. Note that the libertas mesh isn't + * compatible with 802.11 mesh. + */ + if (rdev->ops->libertas_set_mesh_channel) { + if (channel_type != NL80211_CHAN_NO_HT) + return -EINVAL; + + if (!netif_running(wdev->netdev)) + return -ENETDOWN; + return rdev->ops->libertas_set_mesh_channel(&rdev->wiphy, + wdev->netdev, + channel); + } + + if (wdev->mesh_id_len) + return -EBUSY; + + wdev->preset_chan = channel; + wdev->preset_chantype = channel_type; + return 0; +} + void cfg80211_notify_new_peer_candidate(struct net_device *dev, const u8 *macaddr, const u8* ie, u8 ie_len, gfp_t gfp) { diff --git a/net/wireless/mlme.c b/net/wireless/mlme.c index eb90988bbd36..da4406f11929 100644 --- a/net/wireless/mlme.c +++ b/net/wireless/mlme.c @@ -947,8 +947,6 @@ void cfg80211_ch_switch_notify(struct net_device *dev, int freq, if (WARN_ON(!chan)) goto out; - wdev->channel = chan; - nl80211_ch_switch_notify(rdev, dev, freq, type, GFP_KERNEL); out: wdev_unlock(wdev); diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 206465dc0cab..7ae54b82291f 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -921,7 +921,12 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, if (nla_put_u32(msg, i, NL80211_CMD_SET_WIPHY_NETNS)) goto nla_put_failure; } - CMD(set_channel, SET_CHANNEL); + if (dev->ops->set_monitor_channel || dev->ops->start_ap || + dev->ops->join_mesh) { + i++; + if (nla_put_u32(msg, i, NL80211_CMD_SET_CHANNEL)) + goto nla_put_failure; + } CMD(set_wds_peer, SET_WDS_PEER); if (dev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) { CMD(tdls_mgmt, TDLS_MGMT); @@ -1162,18 +1167,22 @@ static int parse_txq_params(struct nlattr *tb[], static bool nl80211_can_set_dev_channel(struct wireless_dev *wdev) { /* - * You can only set the channel explicitly for AP, mesh - * and WDS type interfaces; all others have their channel - * managed via their respective "establish a connection" - * command (connect, join, ...) + * You can only set the channel explicitly for WDS interfaces, + * all others have their channel managed via their respective + * "establish a connection" command (connect, join, ...) + * + * For AP/GO and mesh mode, the channel can be set with the + * channel userspace API, but is only stored and passed to the + * low-level driver when the AP starts or the mesh is joined. + * This is for backward compatibility, userspace can also give + * the channel in the start-ap or join-mesh commands instead. * * Monitors are special as they are normally slaved to - * whatever else is going on, so they behave as though - * you tried setting the wiphy channel itself. + * whatever else is going on, so they have their own special + * operation to set the monitor channel if possible. */ return !wdev || wdev->iftype == NL80211_IFTYPE_AP || - wdev->iftype == NL80211_IFTYPE_WDS || wdev->iftype == NL80211_IFTYPE_MESH_POINT || wdev->iftype == NL80211_IFTYPE_MONITOR || wdev->iftype == NL80211_IFTYPE_P2P_GO; @@ -1204,9 +1213,14 @@ static int __nl80211_set_channel(struct cfg80211_registered_device *rdev, struct wireless_dev *wdev, struct genl_info *info) { + struct ieee80211_channel *channel; enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; u32 freq; int result; + enum nl80211_iftype iftype = NL80211_IFTYPE_MONITOR; + + if (wdev) + iftype = wdev->iftype; if (!info->attrs[NL80211_ATTR_WIPHY_FREQ]) return -EINVAL; @@ -1221,12 +1235,32 @@ static int __nl80211_set_channel(struct cfg80211_registered_device *rdev, freq = nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]); mutex_lock(&rdev->devlist_mtx); - if (wdev) { - wdev_lock(wdev); - result = cfg80211_set_freq(rdev, wdev, freq, channel_type); - wdev_unlock(wdev); - } else { - result = cfg80211_set_freq(rdev, NULL, freq, channel_type); + switch (iftype) { + case NL80211_IFTYPE_AP: + case NL80211_IFTYPE_P2P_GO: + if (wdev->beacon_interval) { + result = -EBUSY; + break; + } + channel = rdev_freq_to_chan(rdev, freq, channel_type); + if (!channel || !cfg80211_can_beacon_sec_chan(&rdev->wiphy, + channel, + channel_type)) { + result = -EINVAL; + break; + } + wdev->preset_chan = channel; + wdev->preset_chantype = channel_type; + result = 0; + break; + case NL80211_IFTYPE_MESH_POINT: + result = cfg80211_set_mesh_freq(rdev, wdev, freq, channel_type); + break; + case NL80211_IFTYPE_MONITOR: + result = cfg80211_set_monitor_channel(rdev, freq, channel_type); + break; + default: + result = -EINVAL; } mutex_unlock(&rdev->devlist_mtx); @@ -1310,8 +1344,7 @@ static int nl80211_set_wiphy(struct sk_buff *skb, struct genl_info *info) result = 0; mutex_lock(&rdev->mtx); - } else if (netif_running(netdev) && - nl80211_can_set_dev_channel(netdev->ieee80211_ptr)) + } else if (nl80211_can_set_dev_channel(netdev->ieee80211_ptr)) wdev = netdev->ieee80211_ptr; else wdev = NULL; @@ -2299,6 +2332,29 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info) info->attrs[NL80211_ATTR_INACTIVITY_TIMEOUT]); } + if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { + enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; + + if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] && + !nl80211_valid_channel_type(info, &channel_type)) + return -EINVAL; + + params.channel = rdev_freq_to_chan(rdev, + nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]), + channel_type); + if (!params.channel) + return -EINVAL; + params.channel_type = channel_type; + } else if (wdev->preset_chan) { + params.channel = wdev->preset_chan; + params.channel_type = wdev->preset_chantype; + } else + return -EINVAL; + + if (!cfg80211_can_beacon_sec_chan(&rdev->wiphy, params.channel, + params.channel_type)) + return -EINVAL; + err = rdev->ops->start_ap(&rdev->wiphy, dev, ¶ms); if (!err) wdev->beacon_interval = params.beacon_interval; @@ -5489,18 +5545,18 @@ static int nl80211_remain_on_channel(struct sk_buff *skb, duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]); + if (!rdev->ops->remain_on_channel || + !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)) + return -EOPNOTSUPP; + /* - * We should be on that channel for at least one jiffie, - * and more than 5 seconds seems excessive. + * We should be on that channel for at least a minimum amount of + * time (10ms) but no longer than the driver supports. */ - if (!duration || !msecs_to_jiffies(duration) || + if (duration < NL80211_MIN_REMAIN_ON_CHANNEL_TIME || duration > rdev->wiphy.max_remain_on_channel_duration) return -EINVAL; - if (!rdev->ops->remain_on_channel || - !(rdev->wiphy.flags & WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL)) - return -EOPNOTSUPP; - if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] && !nl80211_valid_channel_type(info, &channel_type)) return -EINVAL; @@ -5771,6 +5827,15 @@ static int nl80211_tx_mgmt(struct sk_buff *skb, struct genl_info *info) if (!(rdev->wiphy.flags & WIPHY_FLAG_OFFCHAN_TX)) return -EINVAL; wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]); + + /* + * We should wait on the channel for at least a minimum amount + * of time (10ms) but no longer than the driver supports. + */ + if (wait < NL80211_MIN_REMAIN_ON_CHANNEL_TIME || + wait > rdev->wiphy.max_remain_on_channel_duration) + return -EINVAL; + } if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) { @@ -6032,6 +6097,24 @@ static int nl80211_join_mesh(struct sk_buff *skb, struct genl_info *info) return err; } + if (info->attrs[NL80211_ATTR_WIPHY_FREQ]) { + enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT; + + if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE] && + !nl80211_valid_channel_type(info, &channel_type)) + return -EINVAL; + + setup.channel = rdev_freq_to_chan(rdev, + nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]), + channel_type); + if (!setup.channel) + return -EINVAL; + setup.channel_type = channel_type; + } else { + /* cfg80211_join_mesh() will sort it out */ + setup.channel = NULL; + } + return cfg80211_join_mesh(rdev, dev, &setup, &cfg); } diff --git a/net/wireless/wext-compat.c b/net/wireless/wext-compat.c index 6a6181a673ca..bc879833b21f 100644 --- a/net/wireless/wext-compat.c +++ b/net/wireless/wext-compat.c @@ -796,7 +796,15 @@ static int cfg80211_wext_siwfreq(struct net_device *dev, case NL80211_IFTYPE_ADHOC: return cfg80211_ibss_wext_siwfreq(dev, info, wextfreq, extra); case NL80211_IFTYPE_MONITOR: - case NL80211_IFTYPE_WDS: + freq = cfg80211_wext_freq(wdev->wiphy, wextfreq); + if (freq < 0) + return freq; + if (freq == 0) + return -EINVAL; + mutex_lock(&rdev->devlist_mtx); + err = cfg80211_set_monitor_channel(rdev, freq, NL80211_CHAN_NO_HT); + mutex_unlock(&rdev->devlist_mtx); + return err; case NL80211_IFTYPE_MESH_POINT: freq = cfg80211_wext_freq(wdev->wiphy, wextfreq); if (freq < 0) @@ -804,9 +812,8 @@ static int cfg80211_wext_siwfreq(struct net_device *dev, if (freq == 0) return -EINVAL; mutex_lock(&rdev->devlist_mtx); - wdev_lock(wdev); - err = cfg80211_set_freq(rdev, wdev, freq, NL80211_CHAN_NO_HT); - wdev_unlock(wdev); + err = cfg80211_set_mesh_freq(rdev, wdev, freq, + NL80211_CHAN_NO_HT); mutex_unlock(&rdev->devlist_mtx); return err; default: @@ -839,11 +846,7 @@ static int cfg80211_wext_giwfreq(struct net_device *dev, freq->e = 6; return 0; default: - if (!wdev->channel) - return -EINVAL; - freq->m = wdev->channel->center_freq; - freq->e = 6; - return 0; + return -EINVAL; } } diff --git a/net/wireless/wext-sme.c b/net/wireless/wext-sme.c index 7decbd357d51..1f773f668d1a 100644 --- a/net/wireless/wext-sme.c +++ b/net/wireless/wext-sme.c @@ -111,9 +111,15 @@ int cfg80211_mgd_wext_siwfreq(struct net_device *dev, wdev->wext.connect.channel = chan; - /* SSID is not set, we just want to switch channel */ + /* + * SSID is not set, we just want to switch monitor channel, + * this is really just backward compatibility, if the SSID + * is set then we use the channel to select the BSS to use + * to connect to instead. If we were connected on another + * channel we disconnected above and reconnect below. + */ if (chan && !wdev->wext.connect.ssid_len) { - err = cfg80211_set_freq(rdev, wdev, freq, NL80211_CHAN_NO_HT); + err = cfg80211_set_monitor_channel(rdev, freq, NL80211_CHAN_NO_HT); goto out; } |