usr/src/cmd/ipf/lib/common/printpacket6.c

   1 #include "ipf.h"
   2
   3 /*
   4  * This is meant to work without the IPv6 header files being present or
   5  * the inet_ntop() library.
   6  */
   7 void printpacket6(ip)
   8 struct ip *ip;
   9 {
  10         u_char *buf, p;
  11         u_short plen, *addrs;
  12         tcphdr_t *tcp;
  13         u_32_t flow;
  14
  15         buf = (u_char *)ip;
  16         tcp = (tcphdr_t *)(buf + 40);
  17         p = buf[6];
  18         flow = ntohl(*(u_32_t *)buf);
  19         flow &= 0xfffff;
  20         plen = ntohs(*((u_short *)buf +2));
  21         addrs = (u_short *)buf + 4;
  22
  23         printf("ip6/%d %d %#x %d", buf[0] & 0xf, plen, flow, p);
  24         printf(" %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x",
  25                 ntohs(addrs[0]), ntohs(addrs[1]), ntohs(addrs[2]),
  26                 ntohs(addrs[3]), ntohs(addrs[4]), ntohs(addrs[5]),
  27                 ntohs(addrs[6]), ntohs(addrs[7]));
  28         if (plen >= 4)
  29                 if (p == IPPROTO_TCP || p == IPPROTO_UDP)
  30                         (void)printf(",%d", ntohs(tcp->th_sport));
  31         printf(" >");
  32         addrs += 8;
  33         printf(" %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x",
  34                 ntohs(addrs[0]), ntohs(addrs[1]), ntohs(addrs[2]),
  35                 ntohs(addrs[3]), ntohs(addrs[4]), ntohs(addrs[5]),
  36                 ntohs(addrs[6]), ntohs(addrs[7]));
  37         if (plen >= 4)
  38                 if (p == IPPROTO_TCP || p == IPPROTO_UDP)
  39                         (void)printf(",%d", ntohs(tcp->th_dport));
  40         putchar('\n');
  41 }