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implements section 2.2 of RFC4191, regarding the reserved preference value (10)

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Obtained from: KAME
MFC after: 1 day
This commit is contained in:
SUZUKI Shinsuke 2006-03-19 06:38:39 +00:00
parent 9e7c92716b
commit d3693a631e
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=156871
1 changed files with 2 additions and 12 deletions
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14
sys/netinet6/nd6_rtr.c
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@ -270,16 +270,7 @@ nd6_ra_input(m, off, icmp6len)
bzero(&dr0, sizeof(dr0));
dr0.rtaddr = saddr6;
dr0.flags = nd_ra->nd_ra_flags_reserved;
if (rtpref(&dr0) == RTPREF_RESERVED) {
/*
* "reserved" router preference should be treated as
* 0-lifetime. Note that rtpref() covers the case that the
* kernel is not configured to support the preference
* extension.
*/
dr0.rtlifetime = 0;
} else
dr0.rtlifetime = ntohs(nd_ra->nd_ra_router_lifetime);
dr0.rtlifetime = ntohs(nd_ra->nd_ra_router_lifetime);
dr0.expire = time_second + dr0.rtlifetime;
dr0.ifp = ifp;
/* unspecified or not? (RFC 2461 6.3.4) */
@ -720,9 +711,8 @@ rtpref(struct nd_defrouter *dr)
case ND_RA_FLAG_RTPREF_HIGH:
return (RTPREF_HIGH);
case ND_RA_FLAG_RTPREF_MEDIUM:
return (RTPREF_MEDIUM);
case ND_RA_FLAG_RTPREF_RSV:
return (RTPREF_RESERVED);
return (RTPREF_MEDIUM);
case ND_RA_FLAG_RTPREF_LOW:
return (RTPREF_LOW);
default: