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support draft-draves-ipngwg-router-selection-01.txt router preference.

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from jinmei
This commit is contained in:
itojun 2001-05-09 02:43:40 +00:00
parent 06201e8b52
commit 96920d5c73
1 changed files with 19 additions and 2 deletions
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21
print-icmp6.c
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@ -21,7 +21,7 @@
#ifndef lint
static const char rcsid[] =
"@(#) $Header: /tcpdump/master/tcpdump/print-icmp6.c,v 1.47 2001-05-09 01:08:03 fenner Exp $";
"@(#) $Header: /tcpdump/master/tcpdump/print-icmp6.c,v 1.48 2001-05-09 02:43:40 itojun Exp $";
#endif
#ifdef HAVE_CONFIG_H
@ -65,6 +65,13 @@ void icmp6_rrenum_print(int, const u_char *, const u_char *);
#define abs(a) ((0 < (a)) ? (a) : -(a))
#endif
static char *rtpref_str[] = {
"medium", /* 00 */
"high", /* 01 */
"rsv", /* 10 */
"low" /* 11 */
};
void
icmp6_print(register const u_char *bp, register const u_char *bp2)
{
@ -224,6 +231,7 @@ icmp6_print(register const u_char *bp, register const u_char *bp2)
printf("icmp6: router advertisement");
if (vflag) {
struct nd_router_advert *p;
int rtpref;
p = (struct nd_router_advert *)dp;
TCHECK(p->nd_ra_retransmit);
@ -237,8 +245,17 @@ icmp6_print(register const u_char *bp, register const u_char *bp2)
#endif
if (p->nd_ra_flags_reserved & ND_RA_FLAG_HA)
printf("H");
if (p->nd_ra_flags_reserved != 0)
#ifndef ND_RA_FLAG_RTPREF_MASK
#define ND_RA_FLAG_RTPREF_MASK 0x18
#endif
if ((p->nd_ra_flags_reserved & ~ND_RA_FLAG_RTPREF_MASK)
!= 0)
printf(" ");
rtpref = ((p->nd_ra_flags_reserved & ND_RA_FLAG_RTPREF_MASK) >> 3) & 0xff;
printf("pref=%s, ", rtpref_str[rtpref]);
printf("router_ltime=%d, ", ntohs(p->nd_ra_router_lifetime));
printf("reachable_time=%u, ",
(u_int32_t)ntohl(p->nd_ra_reachable));