diff options
| author | WANG Cong <xiyou.wangcong@gmail.com> | 2014-05-12 16:04:53 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-05-14 15:31:45 -0400 |
| commit | 122ff243f5f104194750ecbc76d5946dd1eec934 (patch) | |
| tree | 189020a4d2404ef567785458fee38992e14ca97d /net/ipv4/sysctl_net_ipv4.c | |
| parent | 9cc5e36d1c4794939deafd9f43bce2eab9c1142d (diff) | |
| download | linux-122ff243f5f104194750ecbc76d5946dd1eec934.tar.bz2 | |
ipv4: make ip_local_reserved_ports per netns
ip_local_port_range is already per netns, so should ip_local_reserved_ports
be. And since it is none by default we don't actually need it when we don't
enable CONFIG_SYSCTL.
By the way, rename inet_is_reserved_local_port() to inet_is_local_reserved_port()
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/sysctl_net_ipv4.c')
| -rw-r--r-- | net/ipv4/sysctl_net_ipv4.c | 31 |
1 files changed, 14 insertions, 17 deletions
diff --git a/net/ipv4/sysctl_net_ipv4.c b/net/ipv4/sysctl_net_ipv4.c index a33b9fbc1d80..79a007c52558 100644 --- a/net/ipv4/sysctl_net_ipv4.c +++ b/net/ipv4/sysctl_net_ipv4.c @@ -437,13 +437,6 @@ static struct ctl_table ipv4_table[] = { .proc_handler = proc_dointvec }, { - .procname = "ip_local_reserved_ports", - .data = NULL, /* initialized in sysctl_ipv4_init */ - .maxlen = 65536, - .mode = 0644, - .proc_handler = proc_do_large_bitmap, - }, - { .procname = "igmp_max_memberships", .data = &sysctl_igmp_max_memberships, .maxlen = sizeof(int), @@ -825,6 +818,13 @@ static struct ctl_table ipv4_net_table[] = { .proc_handler = ipv4_local_port_range, }, { + .procname = "ip_local_reserved_ports", + .data = &init_net.ipv4.sysctl_local_reserved_ports, + .maxlen = 65536, + .mode = 0644, + .proc_handler = proc_do_large_bitmap, + }, + { .procname = "ip_no_pmtu_disc", .data = &init_net.ipv4.sysctl_ip_no_pmtu_disc, .maxlen = sizeof(int), @@ -876,8 +876,14 @@ static __net_init int ipv4_sysctl_init_net(struct net *net) if (net->ipv4.ipv4_hdr == NULL) goto err_reg; + net->ipv4.sysctl_local_reserved_ports = kzalloc(65536 / 8, GFP_KERNEL); + if (!net->ipv4.sysctl_local_reserved_ports) + goto err_ports; + return 0; +err_ports: + unregister_net_sysctl_table(net->ipv4.ipv4_hdr); err_reg: if (!net_eq(net, &init_net)) kfree(table); @@ -889,6 +895,7 @@ static __net_exit void ipv4_sysctl_exit_net(struct net *net) { struct ctl_table *table; + kfree(net->ipv4.sysctl_local_reserved_ports); table = net->ipv4.ipv4_hdr->ctl_table_arg; unregister_net_sysctl_table(net->ipv4.ipv4_hdr); kfree(table); @@ -902,16 +909,6 @@ static __net_initdata struct pernet_operations ipv4_sysctl_ops = { static __init int sysctl_ipv4_init(void) { struct ctl_table_header *hdr; - struct ctl_table *i; - - for (i = ipv4_table; i->procname; i++) { - if (strcmp(i->procname, "ip_local_reserved_ports") == 0) { - i->data = sysctl_local_reserved_ports; - break; - } - } - if (!i->procname) - return -EINVAL; hdr = register_net_sysctl(&init_net, "net/ipv4", ipv4_table); if (hdr == NULL) |