diff options
| author | Denis V. Lunev <den@openvz.org> | 2008-01-10 12:21:49 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2008-01-29 00:01:25 +0100 |
| commit | dbb50165b512f6c9b7aae10af73ae5b6d811f4d0 (patch) | |
| tree | 9ba74fb468ec461668351a64c76c5f5d469842fa | |
| parent | [NETNS]: Add namespace to API for routing /proc entries creation. (diff) | |
| download | linux-dbb50165b512f6c9b7aae10af73ae5b6d811f4d0.tar.xz linux-dbb50165b512f6c9b7aae10af73ae5b6d811f4d0.zip | |
[IPV4]: Check fib4_rules_init failure.
This adds error paths into both versions of fib4_rules_init
(with/without CONFIG_IP_MULTIPLE_TABLES) and returns error code to the
caller.
Acked-by: Benjamin Thery <benjamin.thery@bull.net>
Acked-by: Daniel Lezcano <dlezcano@fr.ibm.com>
Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | include/net/ip_fib.h | 2 | ||||
| -rw-r--r-- | net/ipv4/fib_frontend.c | 18 | ||||
| -rw-r--r-- | net/ipv4/fib_rules.c | 14 |
3 files changed, 28 insertions, 6 deletions
diff --git a/include/net/ip_fib.h b/include/net/ip_fib.h index f74cbb21af45..cbff18d748dd 100644 --- a/include/net/ip_fib.h +++ b/include/net/ip_fib.h @@ -186,7 +186,7 @@ static inline void fib_select_default(const struct flowi *flp, struct fib_result } #else /* CONFIG_IP_MULTIPLE_TABLES */ -extern void __init fib4_rules_init(void); +extern int __init fib4_rules_init(void); #ifdef CONFIG_NET_CLS_ROUTE extern u32 fib_rules_tclass(struct fib_result *res); diff --git a/net/ipv4/fib_frontend.c b/net/ipv4/fib_frontend.c index ac6238a3b0fd..1bb956b3be28 100644 --- a/net/ipv4/fib_frontend.c +++ b/net/ipv4/fib_frontend.c @@ -59,12 +59,24 @@ struct fib_table *ip_fib_main_table; #define FIB_TABLE_HASHSZ 1 static struct hlist_head fib_table_hash[FIB_TABLE_HASHSZ]; -static void __init fib4_rules_init(void) +static int __init fib4_rules_init(void) { ip_fib_local_table = fib_hash_init(RT_TABLE_LOCAL); - hlist_add_head_rcu(&ip_fib_local_table->tb_hlist, &fib_table_hash[0]); + if (ip_fib_local_table == NULL) + return -ENOMEM; + ip_fib_main_table = fib_hash_init(RT_TABLE_MAIN); + if (ip_fib_main_table == NULL) + goto fail; + + hlist_add_head_rcu(&ip_fib_local_table->tb_hlist, &fib_table_hash[0]); hlist_add_head_rcu(&ip_fib_main_table->tb_hlist, &fib_table_hash[0]); + return 0; + +fail: + kfree(ip_fib_local_table); + ip_fib_local_table = NULL; + return -ENOMEM; } #else @@ -944,7 +956,7 @@ void __init ip_fib_init(void) for (i = 0; i < FIB_TABLE_HASHSZ; i++) INIT_HLIST_HEAD(&fib_table_hash[i]); - fib4_rules_init(); + BUG_ON(fib4_rules_init()); register_netdevice_notifier(&fib_netdev_notifier); register_inetaddr_notifier(&fib_inetaddr_notifier); diff --git a/net/ipv4/fib_rules.c b/net/ipv4/fib_rules.c index afe669dd1bd5..0751734ecf41 100644 --- a/net/ipv4/fib_rules.c +++ b/net/ipv4/fib_rules.c @@ -311,8 +311,18 @@ static int __init fib_default_rules_init(void) return 0; } -void __init fib4_rules_init(void) +int __init fib4_rules_init() { - BUG_ON(fib_default_rules_init()); + int err; + fib_rules_register(&init_net, &fib4_rules_ops); + err = fib_default_rules_init(); + if (err < 0) + goto fail; + return 0; + +fail: + /* also cleans all rules already added */ + fib_rules_unregister(&init_net, &fib4_rules_ops); + return err; } |