diff options
Diffstat (limited to 'sys/netinet/tcp_input.c')
| -rw-r--r-- | sys/netinet/tcp_input.c | 30 |
1 files changed, 8 insertions, 22 deletions
diff --git a/sys/netinet/tcp_input.c b/sys/netinet/tcp_input.c index 163b588..02a9c22 100644 --- a/sys/netinet/tcp_input.c +++ b/sys/netinet/tcp_input.c @@ -240,7 +240,6 @@ tcp_input(struct mbuf *m, int off0) #ifdef INET6 struct ip6_hdr *ip6 = NULL; int isipv6; - char ip6buf[INET6_ADDRSTRLEN]; #else const int isipv6 = 0; #endif @@ -481,30 +480,17 @@ findpcb: */ if ((tcp_log_in_vain == 1 && (thflags & TH_SYN)) || tcp_log_in_vain == 2) { -#ifndef INET6 - char dbuf[4*sizeof "123"], sbuf[4*sizeof "123"]; + char *s; +#ifdef INET6 + s = tcp_log_addrs(NULL, th, (void *)ip, (void *)ip6); #else - char dbuf[INET6_ADDRSTRLEN+2], sbuf[INET6_ADDRSTRLEN+2]; - if (isipv6) { - strcpy(dbuf, "["); - strcat(dbuf, - ip6_sprintf(ip6buf, &ip6->ip6_dst)); - strcat(dbuf, "]"); - strcpy(sbuf, "["); - strcat(sbuf, - ip6_sprintf(ip6buf, &ip6->ip6_src)); - strcat(sbuf, "]"); - } else + s = tcp_log_addrs(NULL, th, (void *)ip, NULL); #endif /* INET6 */ - { - strcpy(dbuf, inet_ntoa(ip->ip_dst)); - strcpy(sbuf, inet_ntoa(ip->ip_src)); + if (s != NULL) { + log(LOG_INFO, "%s; %s: Connection attempt " + "to closed port\n", s, __func__); + free(s, M_TCPLOG); } - log(LOG_INFO, - "Connection attempt to TCP %s:%d " - "from %s:%d flags:0x%02x\n", - dbuf, ntohs(th->th_dport), sbuf, - ntohs(th->th_sport), thflags); } /* * When blackholing do not respond with a RST but |
