diff options
author | Denis V. Lunev <den@openvz.org> | 2008-07-05 19:02:33 -0700 |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2008-07-05 19:02:33 -0700 |
commit | 39a23e75087ce815abbddbd565b9a2e567ac47da (patch) | |
tree | 456669014c97282b3055c89e8c99aaa4f412f96a /net | |
parent | 639e104facec20f64f2eb940851ae45e5f255e6b (diff) | |
download | op-kernel-dev-39a23e75087ce815abbddbd565b9a2e567ac47da.zip op-kernel-dev-39a23e75087ce815abbddbd565b9a2e567ac47da.tar.gz |
netns: register net.ipv4.route.flush in each namespace
Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net')
-rw-r--r-- | net/ipv4/route.c | 79 |
1 files changed, 69 insertions, 10 deletions
diff --git a/net/ipv4/route.c b/net/ipv4/route.c index 790de32..6fe799d 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -2835,6 +2835,7 @@ static int ipv4_sysctl_rtcache_flush(ctl_table *ctl, int write, { if (write) { int flush_delay; + struct net *net; static DEFINE_MUTEX(flush_mutex); mutex_lock(&flush_mutex); @@ -2843,7 +2844,8 @@ static int ipv4_sysctl_rtcache_flush(ctl_table *ctl, int write, ctl->data = NULL; mutex_unlock(&flush_mutex); - rt_cache_flush(&init_net, flush_delay); + net = (struct net *)ctl->extra1; + rt_cache_flush(net, flush_delay); return 0; } @@ -2859,24 +2861,18 @@ static int ipv4_sysctl_rtcache_flush_strategy(ctl_table *table, size_t newlen) { int delay; + struct net *net; if (newlen != sizeof(int)) return -EINVAL; if (get_user(delay, (int __user *)newval)) return -EFAULT; - rt_cache_flush(&init_net, delay); + net = (struct net *)table->extra1; + rt_cache_flush(net, delay); return 0; } ctl_table ipv4_route_table[] = { { - .ctl_name = NET_IPV4_ROUTE_FLUSH, - .procname = "flush", - .maxlen = sizeof(int), - .mode = 0200, - .proc_handler = &ipv4_sysctl_rtcache_flush, - .strategy = &ipv4_sysctl_rtcache_flush_strategy, - }, - { .ctl_name = NET_IPV4_ROUTE_GC_THRESH, .procname = "gc_thresh", .data = &ipv4_dst_ops.gc_thresh, @@ -3014,6 +3010,66 @@ ctl_table ipv4_route_table[] = { }, { .ctl_name = 0 } }; + +static __net_initdata struct ctl_path ipv4_route_path[] = { + { .procname = "net", .ctl_name = CTL_NET, }, + { .procname = "ipv4", .ctl_name = NET_IPV4, }, + { .procname = "route", .ctl_name = NET_IPV4_ROUTE, }, + { }, +}; + + +static struct ctl_table ipv4_route_flush_table[] = { + { + .ctl_name = NET_IPV4_ROUTE_FLUSH, + .procname = "flush", + .maxlen = sizeof(int), + .mode = 0200, + .proc_handler = &ipv4_sysctl_rtcache_flush, + .strategy = &ipv4_sysctl_rtcache_flush_strategy, + }, + { .ctl_name = 0 }, +}; + +static __net_init int sysctl_route_net_init(struct net *net) +{ + struct ctl_table *tbl; + + tbl = ipv4_route_flush_table; + if (net != &init_net) { + tbl = kmemdup(tbl, sizeof(ipv4_route_flush_table), GFP_KERNEL); + if (tbl == NULL) + goto err_dup; + } + tbl[0].extra1 = net; + + net->ipv4.route_hdr = + register_net_sysctl_table(net, ipv4_route_path, tbl); + if (net->ipv4.route_hdr == NULL) + goto err_reg; + return 0; + +err_reg: + if (tbl != ipv4_route_flush_table) + kfree(tbl); +err_dup: + return -ENOMEM; +} + +static __net_exit void sysctl_route_net_exit(struct net *net) +{ + struct ctl_table *tbl; + + tbl = net->ipv4.route_hdr->ctl_table_arg; + unregister_net_sysctl_table(net->ipv4.route_hdr); + BUG_ON(tbl == ipv4_route_flush_table); + kfree(tbl); +} + +static __net_initdata struct pernet_operations sysctl_route_ops = { + .init = sysctl_route_net_init, + .exit = sysctl_route_net_exit, +}; #endif #ifdef CONFIG_NET_CLS_ROUTE @@ -3090,6 +3146,9 @@ int __init ip_rt_init(void) #endif rtnl_register(PF_INET, RTM_GETROUTE, inet_rtm_getroute, NULL); +#ifdef CONFIG_SYSCTL + register_pernet_subsys(&sysctl_route_ops); +#endif return rc; } |