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authorDavid S. Miller <davem@davemloft.net>2023-11-16 23:35:12 +0000
committerDavid S. Miller <davem@davemloft.net>2023-11-16 23:35:12 +0000
commit9a1f02f3ef96bd83162e94e4ee34a4f8240256ba (patch)
treec173673d5fb2dc3dd62efba9e2cc6d4fc5b015a9 /net/ipv4/tcp_timer.c
parentc6e9dba3be5ef3b701b29b143609561915e5d0e9 (diff)
parent0a8de364ff7a14558e9676f424283148110384d6 (diff)
Merge branch 'tcp-change-reaction-to-ICMP'
Eric Dumazet says: ==================== tcp: change reaction to ICMP messages ICMP[v6] messages received for a socket in TCP_SYN_SENT currently abort the connection attempt, in violation of standards. This series changes our stack to adhere to RFC 6069 and RFC 1122 (4.2.3.9) ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp_timer.c')
-rw-r--r--net/ipv4/tcp_timer.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index 1f9f6c1c196b..d1ad20ce1c8c 100644
--- a/net/ipv4/tcp_timer.c
+++ b/net/ipv4/tcp_timer.c
@@ -626,7 +626,6 @@ void tcp_retransmit_timer(struct sock *sk)
* implemented ftp to mars will work nicely. We will have to fix
* the 120 second clamps though!
*/
- icsk->icsk_backoff++;
out_reset_timer:
/* If stream is thin, use linear timeouts. Since 'icsk_backoff' is
@@ -647,11 +646,12 @@ out_reset_timer:
tcp_rto_min(sk),
TCP_RTO_MAX);
} else if (sk->sk_state != TCP_SYN_SENT ||
- icsk->icsk_backoff >
+ tp->total_rto >
READ_ONCE(net->ipv4.sysctl_tcp_syn_linear_timeouts)) {
/* Use normal (exponential) backoff unless linear timeouts are
* activated.
*/
+ icsk->icsk_backoff++;
icsk->icsk_rto = min(icsk->icsk_rto << 1, TCP_RTO_MAX);
}
inet_csk_reset_xmit_timer(sk, ICSK_TIME_RETRANS,