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ipvs: take care of return value from protocol init_netns 

ip_vs_create_timeout_table() can return NULL
All functions protocol init_netns is affected of this patch.

Signed-off-by: Hans Schillstrom <hans.schillstrom@ericsson.com>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Simon Horman <horms@verge.net.au>
This commit is contained in:
Hans Schillstrom 2012-04-26 09:45:35 +02:00 committed by Pablo Neira Ayuso
parent 4b984cd50b
commit 582b8e3ead
5 changed files with 22 additions and 6 deletions
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2
include/net/ip_vs.h
View File

@ -393,7 +393,7 @@ struct ip_vs_protocol {
void (*exit)(struct ip_vs_protocol *pp);
void (*init_netns)(struct net *net, struct ip_vs_proto_data *pd);
int (*init_netns)(struct net *net, struct ip_vs_proto_data *pd);
void (*exit_netns)(struct net *net, struct ip_vs_proto_data *pd);

11
net/netfilter/ipvs/ip_vs_proto.c
View File

@ -78,8 +78,15 @@ register_ip_vs_proto_netns(struct net *net, struct ip_vs_protocol *pp)
ipvs->proto_data_table[hash] = pd;
atomic_set(&pd->appcnt, 0); /* Init app counter */
if (pp->init_netns != NULL)
pp->init_netns(net, pd);
if (pp->init_netns != NULL) {
int ret = pp->init_netns(net, pd);
if (ret) {
/* unlink an free proto data */
ipvs->proto_data_table[hash] = pd->next;
kfree(pd);
return ret;
}
}
return 0;
}

5
net/netfilter/ipvs/ip_vs_proto_sctp.c
View File

@ -1090,7 +1090,7 @@ out:
* timeouts is netns related now.
* ---------------------------------------------
*/
static void __ip_vs_sctp_init(struct net *net, struct ip_vs_proto_data *pd)
static int __ip_vs_sctp_init(struct net *net, struct ip_vs_proto_data *pd)
{
struct netns_ipvs *ipvs = net_ipvs(net);
@ -1098,6 +1098,9 @@ static void __ip_vs_sctp_init(struct net *net, struct ip_vs_proto_data *pd)
spin_lock_init(&ipvs->sctp_app_lock);
pd->timeout_table = ip_vs_create_timeout_table((int *)sctp_timeouts,
sizeof(sctp_timeouts));
if (!pd->timeout_table)
return -ENOMEM;
return 0;
}
static void __ip_vs_sctp_exit(struct net *net, struct ip_vs_proto_data *pd)

5
net/netfilter/ipvs/ip_vs_proto_tcp.c
View File

@ -677,7 +677,7 @@ void ip_vs_tcp_conn_listen(struct net *net, struct ip_vs_conn *cp)
* timeouts is netns related now.
* ---------------------------------------------
*/
static void __ip_vs_tcp_init(struct net *net, struct ip_vs_proto_data *pd)
static int __ip_vs_tcp_init(struct net *net, struct ip_vs_proto_data *pd)
{
struct netns_ipvs *ipvs = net_ipvs(net);
@ -685,7 +685,10 @@ static void __ip_vs_tcp_init(struct net *net, struct ip_vs_proto_data *pd)
spin_lock_init(&ipvs->tcp_app_lock);
pd->timeout_table = ip_vs_create_timeout_table((int *)tcp_timeouts,
sizeof(tcp_timeouts));
if (!pd->timeout_table)
return -ENOMEM;
pd->tcp_state_table = tcp_states;
return 0;
}
static void __ip_vs_tcp_exit(struct net *net, struct ip_vs_proto_data *pd)

5
net/netfilter/ipvs/ip_vs_proto_udp.c
View File

@ -467,7 +467,7 @@ udp_state_transition(struct ip_vs_conn *cp, int direction,
cp->timeout = pd->timeout_table[IP_VS_UDP_S_NORMAL];
}
static void __udp_init(struct net *net, struct ip_vs_proto_data *pd)
static int __udp_init(struct net *net, struct ip_vs_proto_data *pd)
{
struct netns_ipvs *ipvs = net_ipvs(net);
@ -475,6 +475,9 @@ static void __udp_init(struct net *net, struct ip_vs_proto_data *pd)
spin_lock_init(&ipvs->udp_app_lock);
pd->timeout_table = ip_vs_create_timeout_table((int *)udp_timeouts,
sizeof(udp_timeouts));
if (!pd->timeout_table)
return -ENOMEM;
return 0;
}
static void __udp_exit(struct net *net, struct ip_vs_proto_data *pd)