diff options
Diffstat (limited to 'lib/printpacket6.c')
| -rw-r--r-- | lib/printpacket6.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/lib/printpacket6.c b/lib/printpacket6.c new file mode 100644 index 0000000..16c807d --- /dev/null +++ b/lib/printpacket6.c @@ -0,0 +1,49 @@ +/* + * Copyright (C) 2002 by Darren Reed. + * + * See the IPFILTER.LICENCE file for details on licencing. + * + * $Id: printpacket6.c,v 1.3.4.1 2006/06/16 17:21:13 darrenr Exp $ + */ + +#include "ipf.h" + +/* + * This is meant to work without the IPv6 header files being present or + * the inet_ntop() library. + */ +void printpacket6(ip) +struct ip *ip; +{ + u_char *buf, p; + u_short plen, *addrs; + tcphdr_t *tcp; + u_32_t flow; + + buf = (u_char *)ip; + tcp = (tcphdr_t *)(buf + 40); + p = buf[6]; + flow = ntohl(*(u_32_t *)buf); + flow &= 0xfffff; + plen = ntohs(*((u_short *)buf +2)); + addrs = (u_short *)buf + 4; + + printf("ip6/%d %d %#x %d", buf[0] & 0xf, plen, flow, p); + printf(" %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x", + ntohs(addrs[0]), ntohs(addrs[1]), ntohs(addrs[2]), + ntohs(addrs[3]), ntohs(addrs[4]), ntohs(addrs[5]), + ntohs(addrs[6]), ntohs(addrs[7])); + if (plen >= 4) + if (p == IPPROTO_TCP || p == IPPROTO_UDP) + (void)printf(",%d", ntohs(tcp->th_sport)); + printf(" >"); + addrs += 8; + printf(" %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x", + ntohs(addrs[0]), ntohs(addrs[1]), ntohs(addrs[2]), + ntohs(addrs[3]), ntohs(addrs[4]), ntohs(addrs[5]), + ntohs(addrs[6]), ntohs(addrs[7])); + if (plen >= 4) + if (p == IPPROTO_TCP || p == IPPROTO_UDP) + (void)printf(",%d", ntohs(tcp->th_dport)); + putchar('\n'); +} |
