diff options
Diffstat (limited to 'sys/netinet/tcp_input.c')
| -rw-r--r-- | sys/netinet/tcp_input.c | 15 |
1 files changed, 14 insertions, 1 deletions
diff --git a/sys/netinet/tcp_input.c b/sys/netinet/tcp_input.c index af3c229..34c2006 100644 --- a/sys/netinet/tcp_input.c +++ b/sys/netinet/tcp_input.c @@ -685,13 +685,26 @@ findpcb: #endif so2 = sonewconn(so, 0); if (so2 == 0) { + /* + * If we were unable to create a new socket + * for this SYN, we call sodropablereq to + * see if there are any other sockets we + * can kick out of the listen queue. If + * so, we'll silently drop the socket + * sodropablereq told us to drop and + * create a new one. + * + * If sodropablereq returns 0, we'll + * simply drop the incoming SYN, as we + * can not allocate a socket for it. + */ tcpstat.tcps_listendrop++; so2 = sodropablereq(so); if (so2) { if (tcp_lq_overflow) sototcpcb(so2)->t_flags |= TF_LQ_OVERFLOW; - tcp_drop(sototcpcb(so2), ETIMEDOUT); + tcp_close(sototcpcb(so2)); so2 = sonewconn(so, 0); } if (!so2) |
