1 /* $FreeBSD$ */ 2 3 /* 4 * Copyright (C) 2012 by Darren Reed. 5 * 6 * See the IPFILTER.LICENCE file for details on licencing. 7 * 8 * $Id$ 9 */ 10 11 #include "ipf.h" 12 13 /* 14 * This is meant to work without the IPv6 header files being present or 15 * the inet_ntop() library. 16 */ 17 void 18 printpacket6(int dir, mb_t *m) 19 { 20 u_char *buf, p; 21 u_short plen, *addrs; 22 tcphdr_t *tcp; 23 u_32_t flow; 24 25 buf = (u_char *)m->mb_data; 26 tcp = (tcphdr_t *)(buf + 40); 27 p = buf[6]; 28 flow = ntohl(*(u_32_t *)buf); 29 flow &= 0xfffff; 30 plen = ntohs(*((u_short *)buf +2)); 31 addrs = (u_short *)buf + 4; 32 33 if (dir) 34 PRINTF("> "); 35 else 36 PRINTF("< "); 37 38 PRINTF("%s ", IFNAME(m->mb_ifp)); 39 40 PRINTF("ip6/%d %d %#x %d", buf[0] & 0xf, plen, flow, p); 41 PRINTF(" %x:%x:%x:%x:%x:%x:%x:%x", 42 ntohs(addrs[0]), ntohs(addrs[1]), ntohs(addrs[2]), 43 ntohs(addrs[3]), ntohs(addrs[4]), ntohs(addrs[5]), 44 ntohs(addrs[6]), ntohs(addrs[7])); 45 if (plen >= 4) 46 if (p == IPPROTO_TCP || p == IPPROTO_UDP) 47 (void)PRINTF(",%d", ntohs(tcp->th_sport)); 48 PRINTF(" >"); 49 addrs += 8; 50 PRINTF(" %x:%x:%x:%x:%x:%x:%x:%x", 51 ntohs(addrs[0]), ntohs(addrs[1]), ntohs(addrs[2]), 52 ntohs(addrs[3]), ntohs(addrs[4]), ntohs(addrs[5]), 53 ntohs(addrs[6]), ntohs(addrs[7])); 54 if (plen >= 4) 55 if (p == IPPROTO_TCP || p == IPPROTO_UDP) 56 PRINTF(",%d", ntohs(tcp->th_dport)); 57 putchar('\n'); 58 } 59