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| author | Vlad Yasevich <vladislav.yasevich@hp.com> | 2009-03-24 16:24:51 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2009-03-24 19:49:11 -0700 |
| commit | b2f5e7cd3dee2ed721bf0675e1a1ddebb849aee6 (patch) | |
| tree | a7b48c260a3cb0050ad6198c6a50b52b318dfcb8 /net/ipv6/addrconf.c | |
| parent | 63d9950b08184e6531adceb65f64b429909cc101 (diff) | |
| download | linux-b2f5e7cd3dee2ed721bf0675e1a1ddebb849aee6.tar.gz linux-b2f5e7cd3dee2ed721bf0675e1a1ddebb849aee6.tar.bz2 linux-b2f5e7cd3dee2ed721bf0675e1a1ddebb849aee6.zip | |
ipv6: Fix conflict resolutions during ipv6 binding
The ipv6 version of bind_conflict code calls ipv6_rcv_saddr_equal()
which at times wrongly identified intersections between addresses.
It particularly broke down under a few instances and caused erroneous
bind conflicts.
Signed-off-by: Vlad Yasevich <vladislav.yasevich@hp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/addrconf.c')
| -rw-r--r-- | net/ipv6/addrconf.c | 34 |
1 files changed, 0 insertions, 34 deletions
diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c index 8499da9e76a2..a8218bc1806a 100644 --- a/net/ipv6/addrconf.c +++ b/net/ipv6/addrconf.c @@ -1370,40 +1370,6 @@ struct inet6_ifaddr *ipv6_get_ifaddr(struct net *net, const struct in6_addr *add return ifp; } -int ipv6_rcv_saddr_equal(const struct sock *sk, const struct sock *sk2) -{ - const struct in6_addr *sk_rcv_saddr6 = &inet6_sk(sk)->rcv_saddr; - const struct in6_addr *sk2_rcv_saddr6 = inet6_rcv_saddr(sk2); - __be32 sk_rcv_saddr = inet_sk(sk)->rcv_saddr; - __be32 sk2_rcv_saddr = inet_rcv_saddr(sk2); - int sk_ipv6only = ipv6_only_sock(sk); - int sk2_ipv6only = inet_v6_ipv6only(sk2); - int addr_type = ipv6_addr_type(sk_rcv_saddr6); - int addr_type2 = sk2_rcv_saddr6 ? ipv6_addr_type(sk2_rcv_saddr6) : IPV6_ADDR_MAPPED; - - if (!sk2_rcv_saddr && !sk_ipv6only) - return 1; - - if (addr_type2 == IPV6_ADDR_ANY && - !(sk2_ipv6only && addr_type == IPV6_ADDR_MAPPED)) - return 1; - - if (addr_type == IPV6_ADDR_ANY && - !(sk_ipv6only && addr_type2 == IPV6_ADDR_MAPPED)) - return 1; - - if (sk2_rcv_saddr6 && - ipv6_addr_equal(sk_rcv_saddr6, sk2_rcv_saddr6)) - return 1; - - if (addr_type == IPV6_ADDR_MAPPED && - !sk2_ipv6only && - (!sk2_rcv_saddr || !sk_rcv_saddr || sk_rcv_saddr == sk2_rcv_saddr)) - return 1; - - return 0; -} - /* Gets referenced address, destroys ifaddr */ static void addrconf_dad_stop(struct inet6_ifaddr *ifp) |