[IPV6]: ROUTE: Unify two code paths for pmtu disc.
Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Signed-off-by: David S. Miller <davem@davemloft.net>
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parent
299d993908
commit
d5315b500b
1 changed files with 4 additions and 14 deletions
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@ -1235,11 +1235,12 @@ void rt6_pmtu_discovery(struct in6_addr *daddr, struct in6_addr *saddr,
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1. It is connected route. Action: COW
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2. It is gatewayed route or NONEXTHOP route. Action: clone it.
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*/
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if (!rt->rt6i_nexthop && !(rt->rt6i_flags & RTF_NONEXTHOP)) {
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if (!rt->rt6i_nexthop && !(rt->rt6i_flags & RTF_NONEXTHOP))
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nrt = rt6_alloc_cow(rt, daddr, saddr);
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if (!nrt)
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goto out;
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else
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nrt = rt6_alloc_clone(rt, daddr);
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if (nrt) {
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nrt->u.dst.metrics[RTAX_MTU-1] = pmtu;
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if (allfrag)
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nrt->u.dst.metrics[RTAX_FEATURES-1] |= RTAX_FEATURE_ALLFRAG;
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@ -1254,18 +1255,7 @@ void rt6_pmtu_discovery(struct in6_addr *daddr, struct in6_addr *saddr,
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nrt->rt6i_flags |= RTF_DYNAMIC|RTF_EXPIRES;
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ip6_ins_rt(nrt, NULL, NULL, NULL);
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} else {
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nrt = rt6_alloc_clone(rt, daddr);
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if (!nrt)
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goto out;
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dst_set_expires(&nrt->u.dst, ip6_rt_mtu_expires);
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nrt->rt6i_flags |= RTF_DYNAMIC|RTF_EXPIRES;
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nrt->u.dst.metrics[RTAX_MTU-1] = pmtu;
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if (allfrag)
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nrt->u.dst.metrics[RTAX_FEATURES-1] |= RTAX_FEATURE_ALLFRAG;
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ip6_ins_rt(nrt, NULL, NULL, NULL);
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}
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out:
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dst_release(&rt->u.dst);
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}
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