diff options
| author | Eric Dumazet <edumazet@google.com> | 2023-02-01 20:43:45 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2023-02-03 08:14:50 +0300 |
| commit | 2798e36dc233a409a5d3f26f73029596dc504020 (patch) | |
| tree | 059e250ccf09225bbeb55b0123071aba7caed1ee /net/ipv4/tcp_ipv4.c | |
| parent | 0719bc3a5c77091192c57e440896a969cd1cf885 (diff) | |
| download | linux-2798e36dc233a409a5d3f26f73029596dc504020.tar.xz | |
tcp: add TCP_MINTTL drop reason
In the unlikely case incoming packets are dropped because
of IP_MINTTL / IPV6_MINHOPCOUNT constraints...
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20230201174345.2708943-1-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 | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index 8320d0ecb13a..ea370afa70ed 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -2102,6 +2102,7 @@ process: /* min_ttl can be changed concurrently from do_ip_setsockopt() */ if (unlikely(iph->ttl < READ_ONCE(inet_sk(sk)->min_ttl))) { __NET_INC_STATS(net, LINUX_MIB_TCPMINTTLDROP); + drop_reason = SKB_DROP_REASON_TCP_MINTTL; goto discard_and_relse; } } |