lib/common/printpacket6.c

	printpacket6.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
#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');
}