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Date: Thu, 10 May 2007 22:53:50 -0700
From: akpm@...ux-foundation.org
To: davem@...emloft.net
Cc: netdev@...r.kernel.org, akpm@...ux-foundation.org, milon@...cz,
kaber@...sh.net
Subject: [patch 8/8] networking: fix sending netlink message when replace route
From: Milan Kocian <milon@...cz>
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@...cz>
Cc: Patrick McHardy <kaber@...sh.net>
Cc: David Miller <davem@...emloft.net>
Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
---
net/ipv4/fib_hash.c | 6 ++++--
net/ipv4/fib_lookup.h | 3 ++-
net/ipv4/fib_semantics.c | 5 +++--
net/ipv4/fib_trie.c | 6 ++++--
4 files changed, 13 insertions(+), 7 deletions(-)
diff -puN net/ipv4/fib_hash.c~networking-fix-sending-netlink-message-when-replace-route net/ipv4/fib_hash.c
--- a/net/ipv4/fib_hash.c~networking-fix-sending-netlink-message-when-replace-route
+++ a/net/ipv4/fib_hash.c
@@ -456,6 +456,8 @@ static int fn_hash_insert(struct fib_tab
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 @@ static int fn_hash_insert(struct fib_tab
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 @@ static int fn_hash_delete(struct fib_tab
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 -puN net/ipv4/fib_lookup.h~networking-fix-sending-netlink-message-when-replace-route net/ipv4/fib_lookup.h
--- a/net/ipv4/fib_lookup.h~networking-fix-sending-netlink-message-when-replace-route
+++ a/net/ipv4/fib_lookup.h
@@ -30,7 +30,8 @@ extern int fib_dump_info(struct sk_buff
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 -puN net/ipv4/fib_semantics.c~networking-fix-sending-netlink-message-when-replace-route net/ipv4/fib_semantics.c
--- a/net/ipv4/fib_semantics.c~networking-fix-sending-netlink-message-when-replace-route
+++ a/net/ipv4/fib_semantics.c
@@ -301,7 +301,8 @@ static inline size_t fib_nlmsg_size(stru
}
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 @@ void rtmsg_fib(int event, __be32 key, st
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 -puN net/ipv4/fib_trie.c~networking-fix-sending-netlink-message-when-replace-route net/ipv4/fib_trie.c
--- a/net/ipv4/fib_trie.c~networking-fix-sending-netlink-message-when-replace-route
+++ a/net/ipv4/fib_trie.c
@@ -1226,6 +1226,8 @@ static int fn_trie_insert(struct fib_tab
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 @@ static int fn_trie_insert(struct fib_tab
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 @@ static int fn_trie_delete(struct fib_tab
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);
_
-
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