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61 lines
1.4 KiB
C
61 lines
1.4 KiB
C
/* $NetBSD: printpacket6.c,v 1.2 2012/07/22 14:27:37 darrenr Exp $ */
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/*
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* Copyright (C) 2012 by Darren Reed.
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*
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* See the IPFILTER.LICENCE file for details on licencing.
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*
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* Id: printpacket6.c,v 1.1.1.2 2012/07/22 13:44:42 darrenr Exp $
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*/
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#include "ipf.h"
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/*
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* This is meant to work without the IPv6 header files being present or
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* the inet_ntop() library.
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*/
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void
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printpacket6(dir, m)
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int dir;
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mb_t *m;
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{
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u_char *buf, p;
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u_short plen, *addrs;
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tcphdr_t *tcp;
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u_32_t flow;
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buf = (u_char *)m->mb_data;
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tcp = (tcphdr_t *)(buf + 40);
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p = buf[6];
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flow = ntohl(*(u_32_t *)buf);
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flow &= 0xfffff;
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plen = ntohs(*((u_short *)buf +2));
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addrs = (u_short *)buf + 4;
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if (dir)
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PRINTF("> ");
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else
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PRINTF("< ");
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PRINTF("%s ", IFNAME(m->mb_ifp));
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PRINTF("ip6/%d %d %#x %d", buf[0] & 0xf, plen, flow, p);
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PRINTF(" %x:%x:%x:%x:%x:%x:%x:%x",
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ntohs(addrs[0]), ntohs(addrs[1]), ntohs(addrs[2]),
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ntohs(addrs[3]), ntohs(addrs[4]), ntohs(addrs[5]),
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ntohs(addrs[6]), ntohs(addrs[7]));
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if (plen >= 4)
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if (p == IPPROTO_TCP || p == IPPROTO_UDP)
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(void)PRINTF(",%d", ntohs(tcp->th_sport));
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PRINTF(" >");
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addrs += 8;
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PRINTF(" %x:%x:%x:%x:%x:%x:%x:%x",
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ntohs(addrs[0]), ntohs(addrs[1]), ntohs(addrs[2]),
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ntohs(addrs[3]), ntohs(addrs[4]), ntohs(addrs[5]),
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ntohs(addrs[6]), ntohs(addrs[7]));
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if (plen >= 4)
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if (p == IPPROTO_TCP || p == IPPROTO_UDP)
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PRINTF(",%d", ntohs(tcp->th_dport));
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putchar('\n');
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}
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