diff options
| author | Eric Dumazet <edumazet@google.com> | 2024-10-10 17:48:14 +0000 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-10-14 17:39:36 -0700 |
| commit | bc43a3c83cad46a27d6e3bf869acdd926bbe79ad (patch) | |
| tree | 1d6be7db5eac427b79b700e66340db97b86fb1e5 /include | |
| parent | 78e2baf3d96edd21c6f26d8afc0e68d02ec2c51c (diff) | |
net_sched: sch_fq: prepare for TIME_WAIT sockets
TCP stack is not attaching skb to TIME_WAIT sockets yet,
but we would like to allow this in the future.
Add sk_listener_or_tw() helper to detect the three states
that FQ needs to take care.
Like NEW_SYN_RECV, TIME_WAIT are not full sockets and
do not contain sk->sk_pacing_status, sk->sk_pacing_rate.
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/20241010174817.1543642-3-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/sock.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/net/sock.h b/include/net/sock.h index 6da420ab1ee1..2f200d91ef11 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -2802,6 +2802,16 @@ static inline bool sk_listener(const struct sock *sk) return (1 << sk->sk_state) & (TCPF_LISTEN | TCPF_NEW_SYN_RECV); } +/* This helper checks if a socket is a LISTEN or NEW_SYN_RECV or TIME_WAIT + * TCP SYNACK messages can be attached to LISTEN or NEW_SYN_RECV (depending on SYNCOOKIE) + * TCP RST and ACK can be attached to TIME_WAIT. + */ +static inline bool sk_listener_or_tw(const struct sock *sk) +{ + return (1 << READ_ONCE(sk->sk_state)) & + (TCPF_LISTEN | TCPF_NEW_SYN_RECV | TCPF_TIME_WAIT); +} + void sock_enable_timestamp(struct sock *sk, enum sock_flags flag); int sock_recv_errqueue(struct sock *sk, struct msghdr *msg, int len, int level, int type); |