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fixed bug #42885 nd6_reachability_hint() accepts an address of an

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unknown neighbour
This commit is contained in:
Ivan Delamer 2015-03-18 12:22:49 -06:00
parent e30823769c
commit 8451feaa7a
1 changed files with 5 additions and 0 deletions
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5
src/core/ipv6/nd6.c
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@ -1798,6 +1798,11 @@ nd6_reachability_hint(const ip6_addr_t * ip6addr)
return; return;
} }
/* For safety: don't set as reachable if we don't have a LL address yet. Misuse protection. */
if (neighbor_cache[i].state == ND6_INCOMPLETE || neighbor_cache[i].state == ND6_NO_ENTRY) {
return;
}
/* Set reachability state. */ /* Set reachability state. */
neighbor_cache[i].state = ND6_REACHABLE; neighbor_cache[i].state = ND6_REACHABLE;
neighbor_cache[i].counter.reachable_time = reachable_time; neighbor_cache[i].counter.reachable_time = reachable_time;