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-rw-r--r--net/ipv4/Kconfig2
-rw-r--r--net/ipv4/ipmr.c10
2 files changed, 9 insertions, 3 deletions
diff --git a/net/ipv4/Kconfig b/net/ipv4/Kconfig
index be597749c38..8e3a1fd938a 100644
--- a/net/ipv4/Kconfig
+++ b/net/ipv4/Kconfig
@@ -252,7 +252,7 @@ config IP_MROUTE
config IP_MROUTE_MULTIPLE_TABLES
bool "IP: multicast policy routing"
- depends on IP_ADVANCED_ROUTER
+ depends on IP_MROUTE && IP_ADVANCED_ROUTER
select FIB_RULES
help
Normally, a multicast router runs a userspace daemon and decides
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
index 5df5fd74c6d..7d8a2bcecb7 100644
--- a/net/ipv4/ipmr.c
+++ b/net/ipv4/ipmr.c
@@ -71,6 +71,9 @@
struct mr_table {
struct list_head list;
+#ifdef CONFIG_NET_NS
+ struct net *net;
+#endif
u32 id;
struct sock *mroute_sk;
struct timer_list ipmr_expire_timer;
@@ -308,6 +311,7 @@ static struct mr_table *ipmr_new_table(struct net *net, u32 id)
mrt = kzalloc(sizeof(*mrt), GFP_KERNEL);
if (mrt == NULL)
return NULL;
+ write_pnet(&mrt->net, net);
mrt->id = id;
/* Forwarding cache */
@@ -580,7 +584,7 @@ static inline void ipmr_cache_free(struct mfc_cache *c)
static void ipmr_destroy_unres(struct mr_table *mrt, struct mfc_cache *c)
{
- struct net *net = NULL; //mrt->net;
+ struct net *net = read_pnet(&mrt->net);
struct sk_buff *skb;
struct nlmsgerr *e;
@@ -1089,12 +1093,14 @@ static int ipmr_mfc_add(struct net *net, struct mr_table *mrt,
* Check to see if we resolved a queued list. If so we
* need to send on the frames and tidy up.
*/
+ found = false;
spin_lock_bh(&mfc_unres_lock);
list_for_each_entry(uc, &mrt->mfc_unres_queue, list) {
if (uc->mfc_origin == c->mfc_origin &&
uc->mfc_mcastgrp == c->mfc_mcastgrp) {
list_del(&uc->list);
atomic_dec(&mrt->cache_resolve_queue_len);
+ found = true;
break;
}
}
@@ -1102,7 +1108,7 @@ static int ipmr_mfc_add(struct net *net, struct mr_table *mrt,
del_timer(&mrt->ipmr_expire_timer);
spin_unlock_bh(&mfc_unres_lock);
- if (uc) {
+ if (found) {
ipmr_cache_resolve(net, mrt, uc, c);
ipmr_cache_free(uc);
}