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-rw-r--r--net/ipv6/addrconf.c1
-rw-r--r--net/ipv6/af_inet6.c1
-rw-r--r--net/ipv6/fib6_rules.c37
-rw-r--r--net/ipv6/ip6_fib.c16
-rw-r--r--net/ipv6/ip6mr.c11
-rw-r--r--net/ipv6/mcast.c4
-rw-r--r--net/ipv6/raw.c9
-rw-r--r--net/ipv6/route.c5
-rw-r--r--net/ipv6/tcp_ipv6.c6
9 files changed, 64 insertions, 26 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index da4241c8c7da..7fd8572bac80 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -4654,6 +4654,7 @@ static void __ipv6_ifa_notify(int event, struct inet6_ifaddr *ifp)
break;
}
atomic_inc(&net->ipv6.dev_addr_genid);
+ rt_genid_bump_ipv6(net);
}
static void ipv6_ifa_notify(int event, struct inet6_ifaddr *ifp)
diff --git a/net/ipv6/af_inet6.c b/net/ipv6/af_inet6.c
index a5ac969aeefe..0d1a9b153fbb 100644
--- a/net/ipv6/af_inet6.c
+++ b/net/ipv6/af_inet6.c
@@ -766,6 +766,7 @@ static int __net_init inet6_net_init(struct net *net)
net->ipv6.sysctl.bindv6only = 0;
net->ipv6.sysctl.icmpv6_time = 1*HZ;
+ atomic_set(&net->ipv6.rt_genid, 0);
err = ipv6_init_mibs(net);
if (err)
diff --git a/net/ipv6/fib6_rules.c b/net/ipv6/fib6_rules.c
index 2e1a432867c0..a6c58ce43d34 100644
--- a/net/ipv6/fib6_rules.c
+++ b/net/ipv6/fib6_rules.c
@@ -55,26 +55,33 @@ static int fib6_rule_action(struct fib_rule *rule, struct flowi *flp,
struct fib6_table *table;
struct net *net = rule->fr_net;
pol_lookup_t lookup = arg->lookup_ptr;
+ int err = 0;
switch (rule->action) {
case FR_ACT_TO_TBL:
break;
case FR_ACT_UNREACHABLE:
+ err = -ENETUNREACH;
rt = net->ipv6.ip6_null_entry;
goto discard_pkt;
default:
case FR_ACT_BLACKHOLE:
+ err = -EINVAL;
rt = net->ipv6.ip6_blk_hole_entry;
goto discard_pkt;
case FR_ACT_PROHIBIT:
+ err = -EACCES;
rt = net->ipv6.ip6_prohibit_entry;
goto discard_pkt;
}
table = fib6_get_table(net, rule->table);
- if (table)
- rt = lookup(net, table, flp6, flags);
+ if (!table) {
+ err = -EAGAIN;
+ goto out;
+ }
+ rt = lookup(net, table, flp6, flags);
if (rt != net->ipv6.ip6_null_entry) {
struct fib6_rule *r = (struct fib6_rule *)rule;
@@ -101,6 +108,7 @@ static int fib6_rule_action(struct fib_rule *rule, struct flowi *flp,
}
again:
ip6_rt_put(rt);
+ err = -EAGAIN;
rt = NULL;
goto out;
@@ -108,9 +116,31 @@ discard_pkt:
dst_hold(&rt->dst);
out:
arg->result = rt;
- return rt == NULL ? -EAGAIN : 0;
+ return err;
}
+static bool fib6_rule_suppress(struct fib_rule *rule, struct fib_lookup_arg *arg)
+{
+ struct rt6_info *rt = (struct rt6_info *) arg->result;
+ struct net_device *dev = rt->rt6i_idev->dev;
+ /* do not accept result if the route does
+ * not meet the required prefix length
+ */
+ if (rt->rt6i_dst.plen <= rule->suppress_prefixlen)
+ goto suppress_route;
+
+ /* do not accept result if the route uses a device
+ * belonging to a forbidden interface group
+ */
+ if (rule->suppress_ifgroup != -1 && dev && dev->group == rule->suppress_ifgroup)
+ goto suppress_route;
+
+ return false;
+
+suppress_route:
+ ip6_rt_put(rt);
+ return true;
+}
static int fib6_rule_match(struct fib_rule *rule, struct flowi *fl, int flags)
{
@@ -244,6 +274,7 @@ static const struct fib_rules_ops __net_initconst fib6_rules_ops_template = {
.addr_size = sizeof(struct in6_addr),
.action = fib6_rule_action,
.match = fib6_rule_match,
+ .suppress = fib6_rule_suppress,
.configure = fib6_rule_configure,
.compare = fib6_rule_compare,
.fill = fib6_rule_fill,
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
index bff3d821c7eb..ed828d6f37b2 100644
--- a/net/ipv6/ip6_fib.c
+++ b/net/ipv6/ip6_fib.c
@@ -425,8 +425,8 @@ out:
* node.
*/
-static struct fib6_node * fib6_add_1(struct fib6_node *root, void *addr,
- int addrlen, int plen,
+static struct fib6_node *fib6_add_1(struct fib6_node *root,
+ struct in6_addr *addr, int plen,
int offset, int allow_create,
int replace_required)
{
@@ -543,7 +543,7 @@ insert_above:
but if it is >= plen, the value is ignored in any case.
*/
- bit = __ipv6_addr_diff(addr, &key->addr, addrlen);
+ bit = __ipv6_addr_diff(addr, &key->addr, sizeof(*addr));
/*
* (intermediate)[in]
@@ -822,9 +822,9 @@ int fib6_add(struct fib6_node *root, struct rt6_info *rt, struct nl_info *info)
if (!allow_create && !replace_required)
pr_warn("RTM_NEWROUTE with no NLM_F_CREATE or NLM_F_REPLACE\n");
- fn = fib6_add_1(root, &rt->rt6i_dst.addr, sizeof(struct in6_addr),
- rt->rt6i_dst.plen, offsetof(struct rt6_info, rt6i_dst),
- allow_create, replace_required);
+ fn = fib6_add_1(root, &rt->rt6i_dst.addr, rt->rt6i_dst.plen,
+ offsetof(struct rt6_info, rt6i_dst), allow_create,
+ replace_required);
if (IS_ERR(fn)) {
err = PTR_ERR(fn);
@@ -863,7 +863,7 @@ int fib6_add(struct fib6_node *root, struct rt6_info *rt, struct nl_info *info)
/* Now add the first leaf node to new subtree */
sn = fib6_add_1(sfn, &rt->rt6i_src.addr,
- sizeof(struct in6_addr), rt->rt6i_src.plen,
+ rt->rt6i_src.plen,
offsetof(struct rt6_info, rt6i_src),
allow_create, replace_required);
@@ -882,7 +882,7 @@ int fib6_add(struct fib6_node *root, struct rt6_info *rt, struct nl_info *info)
fn->subtree = sfn;
} else {
sn = fib6_add_1(fn->subtree, &rt->rt6i_src.addr,
- sizeof(struct in6_addr), rt->rt6i_src.plen,
+ rt->rt6i_src.plen,
offsetof(struct rt6_info, rt6i_src),
allow_create, replace_required);
diff --git a/net/ipv6/ip6mr.c b/net/ipv6/ip6mr.c
index 03986d31fa41..a60a84ef04f7 100644
--- a/net/ipv6/ip6mr.c
+++ b/net/ipv6/ip6mr.c
@@ -110,8 +110,8 @@ static struct kmem_cache *mrt_cachep __read_mostly;
static struct mr6_table *ip6mr_new_table(struct net *net, u32 id);
static void ip6mr_free_table(struct mr6_table *mrt);
-static int ip6_mr_forward(struct net *net, struct mr6_table *mrt,
- struct sk_buff *skb, struct mfc6_cache *cache);
+static void ip6_mr_forward(struct net *net, struct mr6_table *mrt,
+ struct sk_buff *skb, struct mfc6_cache *cache);
static int ip6mr_cache_report(struct mr6_table *mrt, struct sk_buff *pkt,
mifi_t mifi, int assert);
static int __ip6mr_fill_mroute(struct mr6_table *mrt, struct sk_buff *skb,
@@ -2074,8 +2074,8 @@ static int ip6mr_find_vif(struct mr6_table *mrt, struct net_device *dev)
return ct;
}
-static int ip6_mr_forward(struct net *net, struct mr6_table *mrt,
- struct sk_buff *skb, struct mfc6_cache *cache)
+static void ip6_mr_forward(struct net *net, struct mr6_table *mrt,
+ struct sk_buff *skb, struct mfc6_cache *cache)
{
int psend = -1;
int vif, ct;
@@ -2156,12 +2156,11 @@ forward:
last_forward:
if (psend != -1) {
ip6mr_forward2(net, mrt, skb, cache, psend);
- return 0;
+ return;
}
dont_forward:
kfree_skb(skb);
- return 0;
}
diff --git a/net/ipv6/mcast.c b/net/ipv6/mcast.c
index 99cd65c715cd..db25b8eb62bd 100644
--- a/net/ipv6/mcast.c
+++ b/net/ipv6/mcast.c
@@ -44,6 +44,7 @@
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/slab.h>
+#include <linux/pkt_sched.h>
#include <net/mld.h>
#include <linux/netfilter.h>
@@ -1376,6 +1377,7 @@ static struct sk_buff *mld_newpack(struct inet6_dev *idev, int size)
if (!skb)
return NULL;
+ skb->priority = TC_PRIO_CONTROL;
skb_reserve(skb, hlen);
if (__ipv6_get_lladdr(idev, &addr_buf, IFA_F_TENTATIVE)) {
@@ -1769,7 +1771,7 @@ static void igmp6_send(struct in6_addr *addr, struct net_device *dev, int type)
rcu_read_unlock();
return;
}
-
+ skb->priority = TC_PRIO_CONTROL;
skb_reserve(skb, hlen);
if (ipv6_get_lladdr(dev, &addr_buf, IFA_F_TENTATIVE)) {
diff --git a/net/ipv6/raw.c b/net/ipv6/raw.c
index c45f7a5c36e9..c1e533498203 100644
--- a/net/ipv6/raw.c
+++ b/net/ipv6/raw.c
@@ -63,6 +63,8 @@
#include <linux/seq_file.h>
#include <linux/export.h>
+#define ICMPV6_HDRLEN 4 /* ICMPv6 header, RFC 4443 Section 2.1 */
+
static struct raw_hashinfo raw_v6_hashinfo = {
.lock = __RW_LOCK_UNLOCKED(raw_v6_hashinfo.lock),
};
@@ -108,11 +110,14 @@ found:
*/
static int icmpv6_filter(const struct sock *sk, const struct sk_buff *skb)
{
- struct icmp6hdr *_hdr;
+ struct icmp6hdr _hdr;
const struct icmp6hdr *hdr;
+ /* We require only the four bytes of the ICMPv6 header, not any
+ * additional bytes of message body in "struct icmp6hdr".
+ */
hdr = skb_header_pointer(skb, skb_transport_offset(skb),
- sizeof(_hdr), &_hdr);
+ ICMPV6_HDRLEN, &_hdr);
if (hdr) {
const __u32 *data = &raw6_sk(sk)->filter.data[0];
unsigned int type = hdr->icmp6_type;
diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index b70f8979003b..e22c4db8d07a 100644
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -283,9 +283,8 @@ static inline struct rt6_info *ip6_dst_alloc(struct net *net,
memset(dst + 1, 0, sizeof(*rt) - sizeof(*dst));
rt6_init_peer(rt, table ? &table->tb6_peers : net->ipv6.peers);
- rt->rt6i_genid = rt_genid(net);
+ rt->rt6i_genid = rt_genid_ipv6(net);
INIT_LIST_HEAD(&rt->rt6i_siblings);
- rt->rt6i_nsiblings = 0;
}
return rt;
}
@@ -1062,7 +1061,7 @@ static struct dst_entry *ip6_dst_check(struct dst_entry *dst, u32 cookie)
* DST_OBSOLETE_FORCE_CHK which forces validation calls down
* into this function always.
*/
- if (rt->rt6i_genid != rt_genid(dev_net(rt->dst.dev)))
+ if (rt->rt6i_genid != rt_genid_ipv6(dev_net(rt->dst.dev)))
return NULL;
if (rt->rt6i_node && (rt->rt6i_node->fn_sernum == cookie))
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index 6e1649d58533..38c196ca6011 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -963,7 +963,8 @@ static int tcp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
if (!ipv6_unicast_destination(skb))
goto drop;
- if (inet_csk_reqsk_queue_is_full(sk) && !isn) {
+ if ((sysctl_tcp_syncookies == 2 ||
+ inet_csk_reqsk_queue_is_full(sk)) && !isn) {
want_cookie = tcp_syn_flood_action(sk, skb, "TCPv6");
if (!want_cookie)
goto drop;
@@ -1237,8 +1238,6 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
newtp->advmss = tcp_sk(sk)->rx_opt.user_mss;
tcp_initialize_rcv_mss(newsk);
- tcp_synack_rtt_meas(newsk, req);
- newtp->total_retrans = req->num_retrans;
newinet->inet_daddr = newinet->inet_saddr = LOOPBACK4_IPV6;
newinet->inet_rcv_saddr = LOOPBACK4_IPV6;
@@ -1926,6 +1925,7 @@ struct proto tcpv6_prot = {
.unhash = inet_unhash,
.get_port = inet_csk_get_port,
.enter_memory_pressure = tcp_enter_memory_pressure,
+ .stream_memory_free = tcp_stream_memory_free,
.sockets_allocated = &tcp_sockets_allocated,
.memory_allocated = &tcp_memory_allocated,
.memory_pressure = &tcp_memory_pressure,
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-16 14:54:25 +0000