[NETNS]: Tcp-v6 sockets per-net lookup.
Add a net argument to inet6_lookup and propagate it further.
Actually, this is tcp-v6 implementation of what was done for
tcp-v4 sockets in a previous patch.
Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv6/inet6_hashtables.c b/net/ipv6/inet6_hashtables.c
index ece6d0e..d325a99 100644
--- a/net/ipv6/inet6_hashtables.c
+++ b/net/ipv6/inet6_hashtables.c
@@ -54,7 +54,8 @@
*
* The sockhash lock must be held as a reader here.
*/
-struct sock *__inet6_lookup_established(struct inet_hashinfo *hashinfo,
+struct sock *__inet6_lookup_established(struct net *net,
+ struct inet_hashinfo *hashinfo,
const struct in6_addr *saddr,
const __be16 sport,
const struct in6_addr *daddr,
@@ -75,12 +76,12 @@
read_lock(lock);
sk_for_each(sk, node, &head->chain) {
/* For IPV6 do the cheaper port and family tests first. */
- if (INET6_MATCH(sk, hash, saddr, daddr, ports, dif))
+ if (INET6_MATCH(sk, net, hash, saddr, daddr, ports, dif))
goto hit; /* You sunk my battleship! */
}
/* Must check for a TIME_WAIT'er before going to listener hash. */
sk_for_each(sk, node, &head->twchain) {
- if (INET6_TW_MATCH(sk, hash, saddr, daddr, ports, dif))
+ if (INET6_TW_MATCH(sk, net, hash, saddr, daddr, ports, dif))
goto hit;
}
read_unlock(lock);
@@ -93,9 +94,9 @@
}
EXPORT_SYMBOL(__inet6_lookup_established);
-struct sock *inet6_lookup_listener(struct inet_hashinfo *hashinfo,
- const struct in6_addr *daddr,
- const unsigned short hnum, const int dif)
+struct sock *inet6_lookup_listener(struct net *net,
+ struct inet_hashinfo *hashinfo, const struct in6_addr *daddr,
+ const unsigned short hnum, const int dif)
{
struct sock *sk;
const struct hlist_node *node;
@@ -104,7 +105,8 @@
read_lock(&hashinfo->lhash_lock);
sk_for_each(sk, node, &hashinfo->listening_hash[inet_lhashfn(hnum)]) {
- if (inet_sk(sk)->num == hnum && sk->sk_family == PF_INET6) {
+ if (sk->sk_net == net && inet_sk(sk)->num == hnum &&
+ sk->sk_family == PF_INET6) {
const struct ipv6_pinfo *np = inet6_sk(sk);
score = 1;
@@ -136,7 +138,7 @@
EXPORT_SYMBOL_GPL(inet6_lookup_listener);
-struct sock *inet6_lookup(struct inet_hashinfo *hashinfo,
+struct sock *inet6_lookup(struct net *net, struct inet_hashinfo *hashinfo,
const struct in6_addr *saddr, const __be16 sport,
const struct in6_addr *daddr, const __be16 dport,
const int dif)
@@ -144,7 +146,7 @@
struct sock *sk;
local_bh_disable();
- sk = __inet6_lookup(hashinfo, saddr, sport, daddr, ntohs(dport), dif);
+ sk = __inet6_lookup(net, hashinfo, saddr, sport, daddr, ntohs(dport), dif);
local_bh_enable();
return sk;
@@ -170,6 +172,7 @@
struct sock *sk2;
const struct hlist_node *node;
struct inet_timewait_sock *tw;
+ struct net *net = sk->sk_net;
prefetch(head->chain.first);
write_lock(lock);
@@ -178,7 +181,7 @@
sk_for_each(sk2, node, &head->twchain) {
tw = inet_twsk(sk2);
- if (INET6_TW_MATCH(sk2, hash, saddr, daddr, ports, dif)) {
+ if (INET6_TW_MATCH(sk2, net, hash, saddr, daddr, ports, dif)) {
if (twsk_unique(sk, sk2, twp))
goto unique;
else
@@ -189,7 +192,7 @@
/* And established part... */
sk_for_each(sk2, node, &head->chain) {
- if (INET6_MATCH(sk2, hash, saddr, daddr, ports, dif))
+ if (INET6_MATCH(sk2, net, hash, saddr, daddr, ports, dif))
goto not_unique;
}