Use embedded scope zone id to determine outgoing interface for link-local
and node-local addresses.
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parent
fb5780def8
commit
ea455de91d
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=274334
@ -555,6 +555,7 @@ selectroute(struct sockaddr_in6 *dstsock, struct ip6_pktopts *opts,
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struct sockaddr_in6 *sin6_next;
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struct in6_pktinfo *pi = NULL;
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struct in6_addr *dst = &dstsock->sin6_addr;
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uint32_t zoneid;
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#if 0
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char ip6buf[INET6_ADDRSTRLEN];
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@ -585,7 +586,18 @@ selectroute(struct sockaddr_in6 *dstsock, struct ip6_pktopts *opts,
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} else
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goto getroute;
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}
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/*
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* If destination address is LLA or link- or node-local multicast,
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* use it's embedded scope zone id to determine outgoing interface.
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*/
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if (IN6_IS_SCOPE_LINKLOCAL(dst) ||
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IN6_IS_ADDR_MC_NODELOCAL(dst)) {
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zoneid = ntohs(in6_getscope(dst));
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if (zoneid > 0) {
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ifp = in6_getlinkifnet(zoneid);
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goto done;
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}
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}
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/*
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* If the destination address is a multicast address and the outgoing
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* interface for the address is specified by the caller, use it.
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