[RTNETLINK]: Fix sending netlink message when replace route.
When you replace route via ip r r command the netlink multicast message is
not send. This patch corrects it. NL message is sent with NLM_F_REPLACE
flag.
Addresses http://bugzilla.kernel.org/show_bug.cgi?id=8320
Signed-off-by: Milan Kocian <milon@wq.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/ipv4/fib_hash.c b/net/ipv4/fib_hash.c
index 9cfecf1..07e843a 100644
--- a/net/ipv4/fib_hash.c
+++ b/net/ipv4/fib_hash.c
@@ -456,6 +456,8 @@
fib_release_info(fi_drop);
if (state & FA_S_ACCESSED)
rt_cache_flush(-1);
+ rtmsg_fib(RTM_NEWROUTE, key, fa, cfg->fc_dst_len, tb->tb_id,
+ &cfg->fc_nlinfo, NLM_F_REPLACE);
return 0;
}
@@ -523,7 +525,7 @@
rt_cache_flush(-1);
rtmsg_fib(RTM_NEWROUTE, key, new_fa, cfg->fc_dst_len, tb->tb_id,
- &cfg->fc_nlinfo);
+ &cfg->fc_nlinfo, 0);
return 0;
out_free_new_fa:
@@ -589,7 +591,7 @@
fa = fa_to_delete;
rtmsg_fib(RTM_DELROUTE, key, fa, cfg->fc_dst_len,
- tb->tb_id, &cfg->fc_nlinfo);
+ tb->tb_id, &cfg->fc_nlinfo, 0);
kill_fn = 0;
write_lock_bh(&fib_hash_lock);
diff --git a/net/ipv4/fib_lookup.h b/net/ipv4/fib_lookup.h
index 0e8b70b..eef9eec 100644
--- a/net/ipv4/fib_lookup.h
+++ b/net/ipv4/fib_lookup.h
@@ -30,7 +30,8 @@
int dst_len, u8 tos, struct fib_info *fi,
unsigned int);
extern void rtmsg_fib(int event, __be32 key, struct fib_alias *fa,
- int dst_len, u32 tb_id, struct nl_info *info);
+ int dst_len, u32 tb_id, struct nl_info *info,
+ unsigned int nlm_flags);
extern struct fib_alias *fib_find_alias(struct list_head *fah,
u8 tos, u32 prio);
extern int fib_detect_death(struct fib_info *fi, int order,
diff --git a/net/ipv4/fib_semantics.c b/net/ipv4/fib_semantics.c
index 406ea70..bb94550 100644
--- a/net/ipv4/fib_semantics.c
+++ b/net/ipv4/fib_semantics.c
@@ -301,7 +301,8 @@
}
void rtmsg_fib(int event, __be32 key, struct fib_alias *fa,
- int dst_len, u32 tb_id, struct nl_info *info)
+ int dst_len, u32 tb_id, struct nl_info *info,
+ unsigned int nlm_flags)
{
struct sk_buff *skb;
u32 seq = info->nlh ? info->nlh->nlmsg_seq : 0;
@@ -313,7 +314,7 @@
err = fib_dump_info(skb, info->pid, seq, event, tb_id,
fa->fa_type, fa->fa_scope, key, dst_len,
- fa->fa_tos, fa->fa_info, 0);
+ fa->fa_tos, fa->fa_info, nlm_flags);
if (err < 0) {
/* -EMSGSIZE implies BUG in fib_nlmsg_size() */
WARN_ON(err == -EMSGSIZE);
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index 9be7da7..30e332a 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -1226,6 +1226,8 @@
fib_release_info(fi_drop);
if (state & FA_S_ACCESSED)
rt_cache_flush(-1);
+ rtmsg_fib(RTM_NEWROUTE, htonl(key), new_fa, plen,
+ tb->tb_id, &cfg->fc_nlinfo, NLM_F_REPLACE);
goto succeeded;
}
@@ -1278,7 +1280,7 @@
rt_cache_flush(-1);
rtmsg_fib(RTM_NEWROUTE, htonl(key), new_fa, plen, tb->tb_id,
- &cfg->fc_nlinfo);
+ &cfg->fc_nlinfo, 0);
succeeded:
return 0;
@@ -1624,7 +1626,7 @@
fa = fa_to_delete;
rtmsg_fib(RTM_DELROUTE, htonl(key), fa, plen, tb->tb_id,
- &cfg->fc_nlinfo);
+ &cfg->fc_nlinfo, 0);
l = fib_find_node(t, key);
li = find_leaf_info(l, plen);