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Diffstat (limited to 'net/ipv6/addrconf.c')
-rw-r--r--net/ipv6/addrconf.c34
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)