diff options
Diffstat (limited to 'sys/contrib/pf')
| -rw-r--r-- | sys/contrib/pf/net/pf.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/sys/contrib/pf/net/pf.c b/sys/contrib/pf/net/pf.c index fd8c395..8289c99 100644 --- a/sys/contrib/pf/net/pf.c +++ b/sys/contrib/pf/net/pf.c @@ -1,4 +1,5 @@ /* $OpenBSD: pf.c,v 1.527 2007/02/22 15:23:23 pyr Exp $ */ +/* add: $OpenBSD: pf.c,v 1.559 2007/09/18 18:45:59 markus Exp $ */ /* * Copyright (c) 2001 Daniel Hartmeier @@ -4779,6 +4780,22 @@ pf_test_state_tcp(struct pf_state **state, int direction, struct pfi_kif *kif, } } + if (((th->th_flags & (TH_SYN|TH_ACK)) == TH_SYN) && + dst->state >= TCPS_FIN_WAIT_2 && + src->state >= TCPS_FIN_WAIT_2) { + if (pf_status.debug >= PF_DEBUG_MISC) { + printf("pf: state reuse "); + pf_print_state(*state); + pf_print_flags(th->th_flags); + printf("\n"); + } + /* XXX make sure it's the same direction ?? */ + (*state)->src.state = (*state)->dst.state = TCPS_CLOSED; + pf_unlink_state(*state); + *state = NULL; + return (PF_DROP); + } + if (src->wscale && dst->wscale && !(th->th_flags & TH_SYN)) { sws = src->wscale & PF_WSCALE_MASK; dws = dst->wscale & PF_WSCALE_MASK; |
