* [PATCH 2/2] [IPV4] fib_trie: fix duplicated route issue
@ 2008-01-16 11:13 Joonwoo Park
2008-01-18 11:45 ` David Miller
0 siblings, 1 reply; 2+ messages in thread
From: Joonwoo Park @ 2008-01-16 11:13 UTC (permalink / raw)
To: David Miller
Cc: Joonwoo Park, linux-netdev, Stephen Hemminger, Alexander Zubkov
http://bugzilla.kernel.org/show_bug.cgi?id=9493
The fib allows making identical routes with 'ip route replace'.
This patch makes the fib return -EEXIST if replacement would cause duplication.
Signed-off-by: Joonwoo Park <joonwpark81@gmail.com>
---
net/ipv4/fib_trie.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/net/ipv4/fib_trie.c b/net/ipv4/fib_trie.c
index 8d8c291..1010b46 100644
--- a/net/ipv4/fib_trie.c
+++ b/net/ipv4/fib_trie.c
@@ -1214,6 +1214,9 @@ static int fn_trie_insert(struct fib_table *tb, struct fib_config *cfg)
struct fib_info *fi_drop;
u8 state;
+ if (fi->fib_treeref > 1)
+ goto out;
+
err = -ENOBUFS;
new_fa = kmem_cache_alloc(fn_alias_kmem, GFP_KERNEL);
if (new_fa == NULL)
--
1.5.3.rc5
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH 2/2] [IPV4] fib_trie: fix duplicated route issue
2008-01-16 11:13 [PATCH 2/2] [IPV4] fib_trie: fix duplicated route issue Joonwoo Park
@ 2008-01-18 11:45 ` David Miller
0 siblings, 0 replies; 2+ messages in thread
From: David Miller @ 2008-01-18 11:45 UTC (permalink / raw)
To: joonwpark81; +Cc: netdev, stephen.hemminger, green
From: Joonwoo Park <joonwpark81@gmail.com>
Date: Wed, 16 Jan 2008 20:13:49 +0900
> http://bugzilla.kernel.org/show_bug.cgi?id=9493
>
> The fib allows making identical routes with 'ip route replace'.
> This patch makes the fib return -EEXIST if replacement would cause duplication.
>
> Signed-off-by: Joonwoo Park <joonwpark81@gmail.com>
Also applied, thanks.
^ permalink raw reply [flat|nested] 2+ messages in thread
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