44 lines
1.2 KiB
C
44 lines
1.2 KiB
C
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/* $NetBSD: printpacket6.c,v 1.1.1.1 2004/03/28 08:56:20 martti Exp $ */
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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 printpacket6(ip)
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struct ip *ip;
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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 *)ip;
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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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printf("ip6/%d %d %#x %d", buf[0] & 0xf, plen, flow, p);
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printf(" %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x",
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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(" %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x",
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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_dport));
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putchar('\n');
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}
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