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[TCP]: Return useful listenq info in tcp_info and INET_DIAG_INFO. 

Return some useful information such as the maximum listen backlog and
the current listen backlog in the tcp_info structure and
INET_DIAG_INFO.

Signed-off-by: Rick Jones <rick.jones2@hp.com>
Signed-off-by: Eric Dumazet <dada1@cosmosbay.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Rick Jones 2007-09-18 13:26:31 -07:00 committed by David S. Miller
parent 768f3591e2
commit 5ee3afba88
2 changed files with 12 additions and 5 deletions
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9
net/ipv4/tcp.c
View File

@ -2031,8 +2031,13 @@ void tcp_get_info(struct sock *sk, struct tcp_info *info)
info->tcpi_snd_mss = tp->mss_cache;
info->tcpi_rcv_mss = icsk->icsk_ack.rcv_mss;
info->tcpi_unacked = tp->packets_out;
info->tcpi_sacked = tp->sacked_out;
if (sk->sk_state == TCP_LISTEN) {
info->tcpi_unacked = sk->sk_ack_backlog;
info->tcpi_sacked = sk->sk_max_ack_backlog;
} else {
info->tcpi_unacked = tp->packets_out;
info->tcpi_sacked = tp->sacked_out;
}
info->tcpi_lost = tp->lost_out;
info->tcpi_retrans = tp->retrans_out;
info->tcpi_fackets = tp->fackets_out;

8
net/ipv4/tcp_diag.c
View File

@ -25,11 +25,13 @@ static void tcp_diag_get_info(struct sock *sk, struct inet_diag_msg *r,
const struct tcp_sock *tp = tcp_sk(sk);
struct tcp_info *info = _info;
if (sk->sk_state == TCP_LISTEN)
if (sk->sk_state == TCP_LISTEN) {
r->idiag_rqueue = sk->sk_ack_backlog;
else
r->idiag_wqueue = sk->sk_max_ack_backlog;
} else {
r->idiag_rqueue = tp->rcv_nxt - tp->copied_seq;
r->idiag_wqueue = tp->write_seq - tp->snd_una;
r->idiag_wqueue = tp->write_seq - tp->snd_una;
}
if (info != NULL)
tcp_get_info(sk, info);
}