diff options
| author | Jason Xing <kernelxing@tencent.com> | 2024-02-26 11:22:18 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2024-02-28 10:39:21 +0000 |
| commit | 48e4704aedb9f17213206dc649fdac90f94cb749 (patch) | |
| tree | 78edce16a0cd35e835a02c2bdd4918a8759d6675 /include/net | |
| parent | 12a686c2e761f1f1f6e6e2117a9ab9c6de2ac8a7 (diff) | |
| download | linux-48e4704aedb9f17213206dc649fdac90f94cb749.tar.gz | |
tcp: add a dropreason definitions and prepare for cookie check
Adding one drop reason to detect the condition of skb dropped
because of hook points in cookie check and extending NO_SOCKET
to consider another two cases can be used later.
Signed-off-by: Jason Xing <kernelxing@tencent.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Reviewed-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net')
| -rw-r--r-- | include/net/dropreason-core.h | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/include/net/dropreason-core.h b/include/net/dropreason-core.h index 6d3a20163260a..a871f061558d6 100644 --- a/include/net/dropreason-core.h +++ b/include/net/dropreason-core.h @@ -54,6 +54,7 @@ FN(NEIGH_QUEUEFULL) \ FN(NEIGH_DEAD) \ FN(TC_EGRESS) \ + FN(SECURITY_HOOK) \ FN(QDISC_DROP) \ FN(CPU_BACKLOG) \ FN(XDP) \ @@ -105,7 +106,13 @@ enum skb_drop_reason { SKB_CONSUMED, /** @SKB_DROP_REASON_NOT_SPECIFIED: drop reason is not specified */ SKB_DROP_REASON_NOT_SPECIFIED, - /** @SKB_DROP_REASON_NO_SOCKET: socket not found */ + /** + * @SKB_DROP_REASON_NO_SOCKET: no valid socket that can be used. + * Reason could be one of three cases: + * 1) no established/listening socket found during lookup process + * 2) no valid request socket during 3WHS process + * 3) no valid child socket during 3WHS process + */ SKB_DROP_REASON_NO_SOCKET, /** @SKB_DROP_REASON_PKT_TOO_SMALL: packet size is too small */ SKB_DROP_REASON_PKT_TOO_SMALL, @@ -271,6 +278,8 @@ enum skb_drop_reason { SKB_DROP_REASON_NEIGH_DEAD, /** @SKB_DROP_REASON_TC_EGRESS: dropped in TC egress HOOK */ SKB_DROP_REASON_TC_EGRESS, + /** @SKB_DROP_REASON_SECURITY_HOOK: dropped due to security HOOK */ + SKB_DROP_REASON_SECURITY_HOOK, /** * @SKB_DROP_REASON_QDISC_DROP: dropped by qdisc when packet outputting ( * failed to enqueue to current qdisc) |