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| author | Eric Dumazet <edumazet@google.com> | 2024-10-10 17:48:17 +0000 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-10-14 17:39:37 -0700 |
| commit | 79636038d37e7bd4d078238f2a3f002cab4423bc (patch) | |
| tree | b6d28ee2b7994c49ec797f143840e22eabdbd45a /net/ipv4/tcp_ipv4.c | |
| parent | 507a96737d99686ca1714c7ba1f60ac323178189 (diff) | |
| download | linux-79636038d37e7bd4d078238f2a3f002cab4423bc.tar.gz linux-79636038d37e7bd4d078238f2a3f002cab4423bc.tar.bz2 linux-79636038d37e7bd4d078238f2a3f002cab4423bc.zip | |
ipv4: tcp: give socket pointer to control skbs
ip_send_unicast_reply() send orphaned 'control packets'.
These are RST packets and also ACK packets sent from TIME_WAIT.
Some eBPF programs would prefer to have a meaningful skb->sk
pointer as much as possible.
This means that TCP can now attach TIME_WAIT sockets to outgoing
skbs.
Signed-off-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: Brian Vazquez <brianvv@google.com>
Link: https://patch.msgid.link/20241010174817.1543642-6-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/ipv4/tcp_ipv4.c')
| -rw-r--r-- | net/ipv4/tcp_ipv4.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index 985028434f64..9d3dd101ea71 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -907,7 +907,7 @@ static void tcp_v4_send_reset(const struct sock *sk, struct sk_buff *skb, ctl_sk->sk_mark = 0; ctl_sk->sk_priority = 0; } - ip_send_unicast_reply(ctl_sk, + ip_send_unicast_reply(ctl_sk, sk, skb, &TCP_SKB_CB(skb)->header.h4.opt, ip_hdr(skb)->saddr, ip_hdr(skb)->daddr, &arg, arg.iov[0].iov_len, @@ -1021,7 +1021,7 @@ static void tcp_v4_send_ack(const struct sock *sk, ctl_sk->sk_priority = (sk->sk_state == TCP_TIME_WAIT) ? inet_twsk(sk)->tw_priority : READ_ONCE(sk->sk_priority); transmit_time = tcp_transmit_time(sk); - ip_send_unicast_reply(ctl_sk, + ip_send_unicast_reply(ctl_sk, sk, skb, &TCP_SKB_CB(skb)->header.h4.opt, ip_hdr(skb)->saddr, ip_hdr(skb)->daddr, &arg, arg.iov[0].iov_len, |