Merge branch 'master' of /home/davem/src/GIT/linux-2.6/
[safe/jmp/linux-2.6] / net / core / sysctl_net_core.c
index c8be646..8938fa7 100644 (file)
@@ -7,48 +7,16 @@
 
 #include <linux/mm.h>
 #include <linux/sysctl.h>
-#include <linux/config.h>
 #include <linux/module.h>
+#include <linux/socket.h>
+#include <linux/netdevice.h>
+#include <linux/ratelimit.h>
+#include <linux/init.h>
 
-#ifdef CONFIG_SYSCTL
-
-extern int netdev_max_backlog;
-extern int weight_p;
-extern int no_cong_thresh;
-extern int no_cong;
-extern int lo_cong;
-extern int mod_cong;
-extern int netdev_fastroute;
-extern int net_msg_cost;
-extern int net_msg_burst;
-
-extern __u32 sysctl_wmem_max;
-extern __u32 sysctl_rmem_max;
-extern __u32 sysctl_wmem_default;
-extern __u32 sysctl_rmem_default;
-
-extern int sysctl_core_destroy_delay;
-extern int sysctl_optmem_max;
-extern int sysctl_somaxconn;
-
-#ifdef CONFIG_NET_DIVERT
-extern char sysctl_divert_version[];
-#endif /* CONFIG_NET_DIVERT */
-
-/*
- * This strdup() is used for creating copies of network 
- * device names to be handed over to sysctl.
- */
-char *net_sysctl_strdup(const char *s)
-{
-       char *rv = kmalloc(strlen(s)+1, GFP_KERNEL);
-       if (rv)
-               strcpy(rv, s);
-       return rv;
-}
+#include <net/ip.h>
+#include <net/sock.h>
 
-ctl_table core_table[] = {
+static struct ctl_table net_core_table[] = {
 #ifdef CONFIG_NET
        {
                .ctl_name       = NET_CORE_WMEM_MAX,
@@ -56,7 +24,7 @@ ctl_table core_table[] = {
                .data           = &sysctl_wmem_max,
                .maxlen         = sizeof(int),
                .mode           = 0644,
-               .proc_handler   = &proc_dointvec
+               .proc_handler   = proc_dointvec
        },
        {
                .ctl_name       = NET_CORE_RMEM_MAX,
@@ -64,7 +32,7 @@ ctl_table core_table[] = {
                .data           = &sysctl_rmem_max,
                .maxlen         = sizeof(int),
                .mode           = 0644,
-               .proc_handler   = &proc_dointvec
+               .proc_handler   = proc_dointvec
        },
        {
                .ctl_name       = NET_CORE_WMEM_DEFAULT,
@@ -72,7 +40,7 @@ ctl_table core_table[] = {
                .data           = &sysctl_wmem_default,
                .maxlen         = sizeof(int),
                .mode           = 0644,
-               .proc_handler   = &proc_dointvec
+               .proc_handler   = proc_dointvec
        },
        {
                .ctl_name       = NET_CORE_RMEM_DEFAULT,
@@ -80,7 +48,7 @@ ctl_table core_table[] = {
                .data           = &sysctl_rmem_default,
                .maxlen         = sizeof(int),
                .mode           = 0644,
-               .proc_handler   = &proc_dointvec
+               .proc_handler   = proc_dointvec
        },
        {
                .ctl_name       = NET_CORE_DEV_WEIGHT,
@@ -88,7 +56,7 @@ ctl_table core_table[] = {
                .data           = &weight_p,
                .maxlen         = sizeof(int),
                .mode           = 0644,
-               .proc_handler   = &proc_dointvec
+               .proc_handler   = proc_dointvec
        },
        {
                .ctl_name       = NET_CORE_MAX_BACKLOG,
@@ -96,56 +64,24 @@ ctl_table core_table[] = {
                .data           = &netdev_max_backlog,
                .maxlen         = sizeof(int),
                .mode           = 0644,
-               .proc_handler   = &proc_dointvec
-       },
-       {
-               .ctl_name       = NET_CORE_NO_CONG_THRESH,
-               .procname       = "no_cong_thresh",
-               .data           = &no_cong_thresh,
-               .maxlen         = sizeof(int),
-               .mode           = 0644,
-               .proc_handler   = &proc_dointvec
-       },
-       {
-               .ctl_name       = NET_CORE_NO_CONG,
-               .procname       = "no_cong",
-               .data           = &no_cong,
-               .maxlen         = sizeof(int),
-               .mode           = 0644,
-               .proc_handler   = &proc_dointvec
-       },
-       {
-               .ctl_name       = NET_CORE_LO_CONG,
-               .procname       = "lo_cong",
-               .data           = &lo_cong,
-               .maxlen         = sizeof(int),
-               .mode           = 0644,
-               .proc_handler   = &proc_dointvec
-       },
-       {
-               .ctl_name       = NET_CORE_MOD_CONG,
-               .procname       = "mod_cong",
-               .data           = &mod_cong,
-               .maxlen         = sizeof(int),
-               .mode           = 0644,
-               .proc_handler   = &proc_dointvec
+               .proc_handler   = proc_dointvec
        },
        {
                .ctl_name       = NET_CORE_MSG_COST,
                .procname       = "message_cost",
-               .data           = &net_msg_cost,
+               .data           = &net_ratelimit_state.interval,
                .maxlen         = sizeof(int),
                .mode           = 0644,
-               .proc_handler   = &proc_dointvec_jiffies,
-               .strategy       = &sysctl_jiffies,
+               .proc_handler   = proc_dointvec_jiffies,
+               .strategy       = sysctl_jiffies,
        },
        {
                .ctl_name       = NET_CORE_MSG_BURST,
                .procname       = "message_burst",
-               .data           = &net_msg_burst,
+               .data           = &net_ratelimit_state.burst,
                .maxlen         = sizeof(int),
                .mode           = 0644,
-               .proc_handler   = &proc_dointvec,
+               .proc_handler   = proc_dointvec,
        },
        {
                .ctl_name       = NET_CORE_OPTMEM_MAX,
@@ -153,30 +89,97 @@ ctl_table core_table[] = {
                .data           = &sysctl_optmem_max,
                .maxlen         = sizeof(int),
                .mode           = 0644,
-               .proc_handler   = &proc_dointvec
+               .proc_handler   = proc_dointvec
        },
-#ifdef CONFIG_NET_DIVERT
+#endif /* CONFIG_NET */
        {
-               .ctl_name       = NET_CORE_DIVERT_VERSION,
-               .procname       = "divert_version",
-               .data           = (void *)sysctl_divert_version,
-               .maxlen         = 32,
-               .mode           = 0444,
-               .proc_handler   = &proc_dostring
+               .ctl_name       = NET_CORE_BUDGET,
+               .procname       = "netdev_budget",
+               .data           = &netdev_budget,
+               .maxlen         = sizeof(int),
+               .mode           = 0644,
+               .proc_handler   = proc_dointvec
        },
-#endif /* CONFIG_NET_DIVERT */
-#endif /* CONFIG_NET */
+       {
+               .ctl_name       = NET_CORE_WARNINGS,
+               .procname       = "warnings",
+               .data           = &net_msg_warn,
+               .maxlen         = sizeof(int),
+               .mode           = 0644,
+               .proc_handler   = proc_dointvec
+       },
+       { .ctl_name = 0 }
+};
+
+static struct ctl_table netns_core_table[] = {
        {
                .ctl_name       = NET_CORE_SOMAXCONN,
                .procname       = "somaxconn",
-               .data           = &sysctl_somaxconn,
+               .data           = &init_net.core.sysctl_somaxconn,
                .maxlen         = sizeof(int),
                .mode           = 0644,
-               .proc_handler   = &proc_dointvec
+               .proc_handler   = proc_dointvec
        },
        { .ctl_name = 0 }
 };
 
-EXPORT_SYMBOL(net_sysctl_strdup);
+__net_initdata struct ctl_path net_core_path[] = {
+       { .procname = "net", .ctl_name = CTL_NET, },
+       { .procname = "core", .ctl_name = NET_CORE, },
+       { },
+};
+
+static __net_init int sysctl_core_net_init(struct net *net)
+{
+       struct ctl_table *tbl;
+
+       net->core.sysctl_somaxconn = SOMAXCONN;
+
+       tbl = netns_core_table;
+       if (!net_eq(net, &init_net)) {
+               tbl = kmemdup(tbl, sizeof(netns_core_table), GFP_KERNEL);
+               if (tbl == NULL)
+                       goto err_dup;
+
+               tbl[0].data = &net->core.sysctl_somaxconn;
+       }
+
+       net->core.sysctl_hdr = register_net_sysctl_table(net,
+                       net_core_path, tbl);
+       if (net->core.sysctl_hdr == NULL)
+               goto err_reg;
+
+       return 0;
+
+err_reg:
+       if (tbl != netns_core_table)
+               kfree(tbl);
+err_dup:
+       return -ENOMEM;
+}
+
+static __net_exit void sysctl_core_net_exit(struct net *net)
+{
+       struct ctl_table *tbl;
+
+       tbl = net->core.sysctl_hdr->ctl_table_arg;
+       unregister_net_sysctl_table(net->core.sysctl_hdr);
+       BUG_ON(tbl == netns_core_table);
+       kfree(tbl);
+}
+
+static __net_initdata struct pernet_operations sysctl_core_ops = {
+       .init = sysctl_core_net_init,
+       .exit = sysctl_core_net_exit,
+};
+
+static __init int sysctl_core_init(void)
+{
+       static struct ctl_table empty[1];
+
+       register_sysctl_paths(net_core_path, empty);
+       register_net_sysctl_rotable(net_core_path, net_core_table);
+       return register_pernet_subsys(&sysctl_core_ops);
+}
 
-#endif
+fs_initcall(sysctl_core_init);