diff options
author | Eric W. Biederman <ebiederm@xmission.com> | 2007-09-12 12:01:34 +0200 |
---|---|---|
committer | David S. Miller <davem@sunset.davemloft.net> | 2007-10-10 16:49:06 -0700 |
commit | 457c4cbc5a3dde259d2a1f15d5f9785290397267 (patch) | |
tree | a2ceee88780cbce27433b9a4434b3e9251efd81a /net/core | |
parent | 07feaebfcc10cd35e745c7073667935246494bee (diff) | |
download | linux-3.10-457c4cbc5a3dde259d2a1f15d5f9785290397267.tar.gz linux-3.10-457c4cbc5a3dde259d2a1f15d5f9785290397267.tar.bz2 linux-3.10-457c4cbc5a3dde259d2a1f15d5f9785290397267.zip |
[NET]: Make /proc/net per network namespace
This patch makes /proc/net per network namespace. It modifies the global
variables proc_net and proc_net_stat to be per network namespace.
The proc_net file helpers are modified to take a network namespace argument,
and all of their callers are fixed to pass &init_net for that argument.
This ensures that all of the /proc/net files are only visible and
usable in the initial network namespace until the code behind them
has been updated to be handle multiple network namespaces.
Making /proc/net per namespace is necessary as at least some files
in /proc/net depend upon the set of network devices which is per
network namespace, and even more files in /proc/net have contents
that are relevant to a single network namespace.
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core')
-rw-r--r-- | net/core/dev.c | 19 | ||||
-rw-r--r-- | net/core/dev_mcast.c | 3 | ||||
-rw-r--r-- | net/core/neighbour.c | 3 | ||||
-rw-r--r-- | net/core/pktgen.c | 9 | ||||
-rw-r--r-- | net/core/sock.c | 3 |
5 files changed, 21 insertions, 16 deletions
diff --git a/net/core/dev.c b/net/core/dev.c index 29cf00c5d86..618fb1c1dd4 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -92,6 +92,7 @@ #include <linux/etherdevice.h> #include <linux/notifier.h> #include <linux/skbuff.h> +#include <net/net_namespace.h> #include <net/sock.h> #include <linux/rtnetlink.h> #include <linux/proc_fs.h> @@ -2556,24 +2557,24 @@ static int __init dev_proc_init(void) { int rc = -ENOMEM; - if (!proc_net_fops_create("dev", S_IRUGO, &dev_seq_fops)) + if (!proc_net_fops_create(&init_net, "dev", S_IRUGO, &dev_seq_fops)) goto out; - if (!proc_net_fops_create("softnet_stat", S_IRUGO, &softnet_seq_fops)) + if (!proc_net_fops_create(&init_net, "softnet_stat", S_IRUGO, &softnet_seq_fops)) goto out_dev; - if (!proc_net_fops_create("ptype", S_IRUGO, &ptype_seq_fops)) - goto out_dev2; + if (!proc_net_fops_create(&init_net, "ptype", S_IRUGO, &ptype_seq_fops)) + goto out_softnet; if (wext_proc_init()) - goto out_softnet; + goto out_ptype; rc = 0; out: return rc; +out_ptype: + proc_net_remove(&init_net, "ptype"); out_softnet: - proc_net_remove("ptype"); -out_dev2: - proc_net_remove("softnet_stat"); + proc_net_remove(&init_net, "softnet_stat"); out_dev: - proc_net_remove("dev"); + proc_net_remove(&init_net, "dev"); goto out; } #else diff --git a/net/core/dev_mcast.c b/net/core/dev_mcast.c index 20330c57261..8e069fc207c 100644 --- a/net/core/dev_mcast.c +++ b/net/core/dev_mcast.c @@ -41,6 +41,7 @@ #include <linux/proc_fs.h> #include <linux/seq_file.h> #include <linux/init.h> +#include <net/net_namespace.h> #include <net/ip.h> #include <net/route.h> #include <linux/skbuff.h> @@ -254,7 +255,7 @@ static const struct file_operations dev_mc_seq_fops = { void __init dev_mcast_init(void) { - proc_net_fops_create("dev_mcast", 0, &dev_mc_seq_fops); + proc_net_fops_create(&init_net, "dev_mcast", 0, &dev_mc_seq_fops); } EXPORT_SYMBOL(dev_mc_add); diff --git a/net/core/neighbour.c b/net/core/neighbour.c index ecd43c4a222..5f25f4f79b8 100644 --- a/net/core/neighbour.c +++ b/net/core/neighbour.c @@ -25,6 +25,7 @@ #include <linux/sysctl.h> #endif #include <linux/times.h> +#include <net/net_namespace.h> #include <net/neighbour.h> #include <net/dst.h> #include <net/sock.h> @@ -1350,7 +1351,7 @@ void neigh_table_init_no_netlink(struct neigh_table *tbl) panic("cannot create neighbour cache statistics"); #ifdef CONFIG_PROC_FS - tbl->pde = create_proc_entry(tbl->id, 0, proc_net_stat); + tbl->pde = create_proc_entry(tbl->id, 0, init_net.proc_net_stat); if (!tbl->pde) panic("cannot create neighbour proc dir entry"); tbl->pde->proc_fops = &neigh_stat_seq_fops; diff --git a/net/core/pktgen.c b/net/core/pktgen.c index 84c0edeedf6..33d7247fb19 100644 --- a/net/core/pktgen.c +++ b/net/core/pktgen.c @@ -152,6 +152,7 @@ #include <linux/wait.h> #include <linux/etherdevice.h> #include <linux/kthread.h> +#include <net/net_namespace.h> #include <net/checksum.h> #include <net/ipv6.h> #include <net/addrconf.h> @@ -3808,7 +3809,7 @@ static int __init pg_init(void) printk(KERN_INFO "%s", version); - pg_proc_dir = proc_mkdir(PG_PROC_DIR, proc_net); + pg_proc_dir = proc_mkdir(PG_PROC_DIR, init_net.proc_net); if (!pg_proc_dir) return -ENODEV; pg_proc_dir->owner = THIS_MODULE; @@ -3817,7 +3818,7 @@ static int __init pg_init(void) if (pe == NULL) { printk(KERN_ERR "pktgen: ERROR: cannot create %s " "procfs entry.\n", PGCTRL); - proc_net_remove(PG_PROC_DIR); + proc_net_remove(&init_net, PG_PROC_DIR); return -EINVAL; } @@ -3841,7 +3842,7 @@ static int __init pg_init(void) "all threads\n"); unregister_netdevice_notifier(&pktgen_notifier_block); remove_proc_entry(PGCTRL, pg_proc_dir); - proc_net_remove(PG_PROC_DIR); + proc_net_remove(&init_net, PG_PROC_DIR); return -ENODEV; } @@ -3868,7 +3869,7 @@ static void __exit pg_cleanup(void) /* Clean up proc file system */ remove_proc_entry(PGCTRL, pg_proc_dir); - proc_net_remove(PG_PROC_DIR); + proc_net_remove(&init_net, PG_PROC_DIR); } module_init(pg_init); diff --git a/net/core/sock.c b/net/core/sock.c index beb924c248e..bbc726a49d8 100644 --- a/net/core/sock.c +++ b/net/core/sock.c @@ -119,6 +119,7 @@ #include <linux/netdevice.h> #include <net/protocol.h> #include <linux/skbuff.h> +#include <net/net_namespace.h> #include <net/request_sock.h> #include <net/sock.h> #include <net/xfrm.h> @@ -1973,7 +1974,7 @@ static const struct file_operations proto_seq_fops = { static int __init proto_init(void) { /* register /proc/net/protocols */ - return proc_net_fops_create("protocols", S_IRUGO, &proto_seq_fops) == NULL ? -ENOBUFS : 0; + return proc_net_fops_create(&init_net, "protocols", S_IRUGO, &proto_seq_fops) == NULL ? -ENOBUFS : 0; } subsys_initcall(proto_init); |