diff options
| author | Jeremie Courreges-Anglas <jca@cvs.openbsd.org> | 2016-05-06 17:16:25 +0000 |
|---|---|---|
| committer | Jeremie Courreges-Anglas <jca@cvs.openbsd.org> | 2016-05-06 17:16:25 +0000 |
| commit | 73c052938f302ee9e28b89c7686da823e2e80367 (patch) | |
| tree | a8ada0887ad5c6bd674ea6d04c537155b86c6674 | |
| parent | 6db5e35b99843d7e5d432670af931675f7a34af0 (diff) | |
In verbose mode, print the router preference contained in RAs.
"pref" keyword taken from tcpdump.org.
ok mpi@ sthen@ deraadt@
| -rw-r--r-- | usr.sbin/tcpdump/print-icmp6.c | 22 |
1 files changed, 19 insertions, 3 deletions
diff --git a/usr.sbin/tcpdump/print-icmp6.c b/usr.sbin/tcpdump/print-icmp6.c index a21c4010309..aaea4d4d308 100644 --- a/usr.sbin/tcpdump/print-icmp6.c +++ b/usr.sbin/tcpdump/print-icmp6.c @@ -1,4 +1,4 @@ -/* $OpenBSD: print-icmp6.c,v 1.18 2016/03/15 05:03:11 mmcc Exp $ */ +/* $OpenBSD: print-icmp6.c,v 1.19 2016/05/06 17:16:24 jca Exp $ */ /* * Copyright (c) 1988, 1989, 1990, 1991, 1993, 1994 @@ -305,8 +305,24 @@ icmp6_print(const u_char *bp, u_int length, const u_char *bp2) printf("M"); if (p->nd_ra_flags_reserved & ND_RA_FLAG_OTHER) printf("O"); - if (p->nd_ra_flags_reserved != 0) - printf(" "); + if (p->nd_ra_flags_reserved & + (ND_RA_FLAG_MANAGED|ND_RA_FLAG_OTHER)) + printf(", "); + switch (p->nd_ra_flags_reserved + & ND_RA_FLAG_RTPREF_MASK) { + case ND_RA_FLAG_RTPREF_HIGH: + printf("pref=high, "); + break; + case ND_RA_FLAG_RTPREF_MEDIUM: + printf("pref=medium, "); + break; + case ND_RA_FLAG_RTPREF_LOW: + printf("pref=low, "); + break; + case ND_RA_FLAG_RTPREF_RSV: + printf("pref=rsv, "); + break; + } printf("router_ltime=%d, ", ntohs(p->nd_ra_router_lifetime)); printf("reachable_time=%u, ", (u_int32_t)ntohl(p->nd_ra_reachable)); |