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Diffstat (limited to 'net/ipv4/tcp.c')
-rw-r--r--net/ipv4/tcp.c80
1 files changed, 46 insertions, 34 deletions
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index f9faadb42485..4d73858991af 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -247,6 +247,7 @@
#define pr_fmt(fmt) "TCP: " fmt
+#include <crypto/hash.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/types.h>
@@ -266,7 +267,6 @@
#include <linux/swap.h>
#include <linux/cache.h>
#include <linux/err.h>
-#include <linux/crypto.h>
#include <linux/time.h>
#include <linux/slab.h>
@@ -428,14 +428,16 @@ void tcp_init_sock(struct sock *sk)
}
EXPORT_SYMBOL(tcp_init_sock);
-static void tcp_tx_timestamp(struct sock *sk, struct sk_buff *skb)
+static void tcp_tx_timestamp(struct sock *sk, u16 tsflags, struct sk_buff *skb)
{
- if (sk->sk_tsflags) {
+ if (sk->sk_tsflags || tsflags) {
struct skb_shared_info *shinfo = skb_shinfo(skb);
+ struct tcp_skb_cb *tcb = TCP_SKB_CB(skb);
- sock_tx_timestamp(sk, &shinfo->tx_flags);
+ sock_tx_timestamp(sk, tsflags, &shinfo->tx_flags);
if (shinfo->tx_flags & SKBTX_ANY_TSTAMP)
shinfo->tskey = TCP_SKB_CB(skb)->seq + skb->len - 1;
+ tcb->txstamp_ack = !!(shinfo->tx_flags & SKBTX_ACK_TSTAMP);
}
}
@@ -556,20 +558,7 @@ int tcp_ioctl(struct sock *sk, int cmd, unsigned long arg)
return -EINVAL;
slow = lock_sock_fast(sk);
- if ((1 << sk->sk_state) & (TCPF_SYN_SENT | TCPF_SYN_RECV))
- answ = 0;
- else if (sock_flag(sk, SOCK_URGINLINE) ||
- !tp->urg_data ||
- before(tp->urg_seq, tp->copied_seq) ||
- !before(tp->urg_seq, tp->rcv_nxt)) {
-
- answ = tp->rcv_nxt - tp->copied_seq;
-
- /* Subtract 1, if FIN was received */
- if (answ && sock_flag(sk, SOCK_DONE))
- answ--;
- } else
- answ = tp->urg_seq - tp->copied_seq;
+ answ = tcp_inq(sk);
unlock_sock_fast(sk, slow);
break;
case SIOCATMARK:
@@ -970,7 +959,7 @@ new_segment:
offset += copy;
size -= copy;
if (!size) {
- tcp_tx_timestamp(sk, skb);
+ tcp_tx_timestamp(sk, sk->sk_tsflags, skb);
goto out;
}
@@ -1090,6 +1079,7 @@ int tcp_sendmsg(struct sock *sk, struct msghdr *msg, size_t size)
{
struct tcp_sock *tp = tcp_sk(sk);
struct sk_buff *skb;
+ struct sockcm_cookie sockc;
int flags, err, copied = 0;
int mss_now = 0, size_goal, copied_syn = 0;
bool sg;
@@ -1132,6 +1122,15 @@ int tcp_sendmsg(struct sock *sk, struct msghdr *msg, size_t size)
/* 'common' sending to sendq */
}
+ sockc.tsflags = sk->sk_tsflags;
+ if (msg->msg_controllen) {
+ err = sock_cmsg_send(sk, msg, &sockc);
+ if (unlikely(err)) {
+ err = -EINVAL;
+ goto out_err;
+ }
+ }
+
/* This should be in poll */
sk_clear_bit(SOCKWQ_ASYNC_NOSPACE, sk);
@@ -1250,7 +1249,7 @@ new_segment:
copied += copy;
if (!msg_data_left(msg)) {
- tcp_tx_timestamp(sk, skb);
+ tcp_tx_timestamp(sk, sockc.tsflags, skb);
goto out;
}
@@ -2728,6 +2727,8 @@ void tcp_get_info(struct sock *sk, struct tcp_info *info)
info->tcpi_notsent_bytes = max(0, notsent_bytes);
info->tcpi_min_rtt = tcp_min_rtt(tp);
+ info->tcpi_data_segs_in = tp->data_segs_in;
+ info->tcpi_data_segs_out = tp->data_segs_out;
}
EXPORT_SYMBOL_GPL(tcp_get_info);
@@ -2953,17 +2954,26 @@ static bool tcp_md5sig_pool_populated = false;
static void __tcp_alloc_md5sig_pool(void)
{
+ struct crypto_ahash *hash;
int cpu;
+ hash = crypto_alloc_ahash("md5", 0, CRYPTO_ALG_ASYNC);
+ if (IS_ERR(hash))
+ return;
+
for_each_possible_cpu(cpu) {
- if (!per_cpu(tcp_md5sig_pool, cpu).md5_desc.tfm) {
- struct crypto_hash *hash;
+ struct ahash_request *req;
- hash = crypto_alloc_hash("md5", 0, CRYPTO_ALG_ASYNC);
- if (IS_ERR(hash))
- return;
- per_cpu(tcp_md5sig_pool, cpu).md5_desc.tfm = hash;
- }
+ if (per_cpu(tcp_md5sig_pool, cpu).md5_req)
+ continue;
+
+ req = ahash_request_alloc(hash, GFP_KERNEL);
+ if (!req)
+ return;
+
+ ahash_request_set_callback(req, 0, NULL, NULL);
+
+ per_cpu(tcp_md5sig_pool, cpu).md5_req = req;
}
/* before setting tcp_md5sig_pool_populated, we must commit all writes
* to memory. See smp_rmb() in tcp_get_md5sig_pool()
@@ -3013,7 +3023,6 @@ int tcp_md5_hash_header(struct tcp_md5sig_pool *hp,
{
struct scatterlist sg;
struct tcphdr hdr;
- int err;
/* We are not allowed to change tcphdr, make a local copy */
memcpy(&hdr, th, sizeof(hdr));
@@ -3021,8 +3030,8 @@ int tcp_md5_hash_header(struct tcp_md5sig_pool *hp,
/* options aren't included in the hash */
sg_init_one(&sg, &hdr, sizeof(hdr));
- err = crypto_hash_update(&hp->md5_desc, &sg, sizeof(hdr));
- return err;
+ ahash_request_set_crypt(hp->md5_req, &sg, NULL, sizeof(hdr));
+ return crypto_ahash_update(hp->md5_req);
}
EXPORT_SYMBOL(tcp_md5_hash_header);
@@ -3031,7 +3040,7 @@ int tcp_md5_hash_skb_data(struct tcp_md5sig_pool *hp,
{
struct scatterlist sg;
const struct tcphdr *tp = tcp_hdr(skb);
- struct hash_desc *desc = &hp->md5_desc;
+ struct ahash_request *req = hp->md5_req;
unsigned int i;
const unsigned int head_data_len = skb_headlen(skb) > header_len ?
skb_headlen(skb) - header_len : 0;
@@ -3041,7 +3050,8 @@ int tcp_md5_hash_skb_data(struct tcp_md5sig_pool *hp,
sg_init_table(&sg, 1);
sg_set_buf(&sg, ((u8 *) tp) + header_len, head_data_len);
- if (crypto_hash_update(desc, &sg, head_data_len))
+ ahash_request_set_crypt(req, &sg, NULL, head_data_len);
+ if (crypto_ahash_update(req))
return 1;
for (i = 0; i < shi->nr_frags; ++i) {
@@ -3051,7 +3061,8 @@ int tcp_md5_hash_skb_data(struct tcp_md5sig_pool *hp,
sg_set_page(&sg, page, skb_frag_size(f),
offset_in_page(offset));
- if (crypto_hash_update(desc, &sg, skb_frag_size(f)))
+ ahash_request_set_crypt(req, &sg, NULL, skb_frag_size(f));
+ if (crypto_ahash_update(req))
return 1;
}
@@ -3068,7 +3079,8 @@ int tcp_md5_hash_key(struct tcp_md5sig_pool *hp, const struct tcp_md5sig_key *ke
struct scatterlist sg;
sg_init_one(&sg, key->key, key->keylen);
- return crypto_hash_update(&hp->md5_desc, &sg, key->keylen);
+ ahash_request_set_crypt(hp->md5_req, &sg, NULL, key->keylen);
+ return crypto_ahash_update(hp->md5_req);
}
EXPORT_SYMBOL(tcp_md5_hash_key);
generated by cgit v1.2.3 (git 2.46.0) at 2025-08-31 09:17:58 +0000