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| author |   Pavel Emelyanov <xemul@openvz.org> | 2008-05-19 13:53:02 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2008-05-19 13:53:02 -0700 |
| commit | 7d291ebb834278e30c211b26fb7076adcb636ad9 (patch) | |
| tree | a6f7c95feff3a4f40603bf79b5cce85dc1c96e9f /net/ipv4/ip_fragment.c | |
| parent | ipv6: In fragmentation code, handle error returned from register_pernet_subsys. (diff) | |
| download | linux-dev-7d291ebb834278e30c211b26fb7076adcb636ad9.tar.xz linux-dev-7d291ebb834278e30c211b26fb7076adcb636ad9.zip | |
inet: Register fragmentation some ctls at read-only root.
Parts of fragments-related sysctls are read-only, but this is
done by cloning all the tables and dropping write-bits from
mode. Do the same but with read-only root.
Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/ip_fragment.c')
| -rw-r--r-- | net/ipv4/ip_fragment.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c index 7f102eeb618e..be1cb89a8d5a 100644 --- a/net/ipv4/ip_fragment.c +++ b/net/ipv4/ip_fragment.c @@ -624,6 +624,10 @@ static struct ctl_table ip4_frags_ns_ctl_table[] = { .proc_handler = &proc_dointvec_jiffies, .strategy = &sysctl_jiffies }, + { } +}; + +static struct ctl_table ip4_frags_ctl_table[] = { { .ctl_name = NET_IPV4_IPFRAG_SECRET_INTERVAL, .procname = "ipfrag_secret_interval", @@ -658,8 +662,6 @@ static int ip4_frags_ns_ctl_register(struct net *net) table[0].data = &net->ipv4.frags.high_thresh; table[1].data = &net->ipv4.frags.low_thresh; table[2].data = &net->ipv4.frags.timeout; - table[3].mode &= ~0222; - table[4].mode &= ~0222; } hdr = register_net_sysctl_table(net, net_ipv4_ctl_path, table); @@ -684,6 +686,11 @@ static void ip4_frags_ns_ctl_unregister(struct net *net) unregister_net_sysctl_table(net->ipv4.frags_hdr); kfree(table); } + +static void ip4_frags_ctl_register(void) +{ + register_net_sysctl_rotable(net_ipv4_ctl_path, ip4_frags_ctl_table); +} #else static inline int ip4_frags_ns_ctl_register(struct net *net) { @@ -693,6 +700,10 @@ static inline int ip4_frags_ns_ctl_register(struct net *net) static inline void ip4_frags_ns_ctl_unregister(struct net *net) { } + +static inline void ip4_frags_ctl_register(void) +{ +} #endif static int ipv4_frags_init_net(struct net *net) @@ -730,6 +741,7 @@ static struct pernet_operations ip4_frags_ops = { void __init ipfrag_init(void) { + ip4_frags_ctl_register(); register_pernet_subsys(&ip4_frags_ops); ip4_frags.hashfn = ip4_hashfn; ip4_frags.constructor = ip4_frag_init; |