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| author | Eric W. Biederman <ebiederm@xmission.com> | 2007-09-12 12:01:34 +0200 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2007-10-11 01:49:06 +0200 |
| commit | 457c4cbc5a3dde259d2a1f15d5f9785290397267 (patch) | |
| tree | a2ceee88780cbce27433b9a4434b3e9251efd81a /fs | |
| parent | [NET]: Add a network namespace parameter to struct sock (diff) | |
| download | linux-457c4cbc5a3dde259d2a1f15d5f9785290397267.tar.xz linux-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 'fs')
| -rw-r--r-- | fs/proc/Makefile | 1 | ||||
| -rw-r--r-- | fs/proc/internal.h | 5 | ||||
| -rw-r--r-- | fs/proc/root.c | 8 |
3 files changed, 9 insertions, 5 deletions
diff --git a/fs/proc/Makefile b/fs/proc/Makefile index bce38e3f06cb..ebaba0213546 100644 --- a/fs/proc/Makefile +++ b/fs/proc/Makefile @@ -11,6 +11,7 @@ proc-y += inode.o root.o base.o generic.o array.o \ proc_tty.o proc_misc.o proc-$(CONFIG_PROC_SYSCTL) += proc_sysctl.o +proc-$(CONFIG_NET) += proc_net.o proc-$(CONFIG_PROC_KCORE) += kcore.o proc-$(CONFIG_PROC_VMCORE) += vmcore.o proc-$(CONFIG_PROC_DEVICETREE) += proc_devtree.o diff --git a/fs/proc/internal.h b/fs/proc/internal.h index b215c3524fa6..1820eb2ef762 100644 --- a/fs/proc/internal.h +++ b/fs/proc/internal.h @@ -16,6 +16,11 @@ extern int proc_sys_init(void); #else static inline void proc_sys_init(void) { } #endif +#ifdef CONFIG_NET +extern int proc_net_init(void); +#else +static inline int proc_net_init(void) { return 0; } +#endif struct vmalloc_info { unsigned long used; diff --git a/fs/proc/root.c b/fs/proc/root.c index 41f17037f738..cf3046638b09 100644 --- a/fs/proc/root.c +++ b/fs/proc/root.c @@ -21,7 +21,7 @@ #include "internal.h" -struct proc_dir_entry *proc_net, *proc_net_stat, *proc_bus, *proc_root_fs, *proc_root_driver; +struct proc_dir_entry *proc_bus, *proc_root_fs, *proc_root_driver; static int proc_get_sb(struct file_system_type *fs_type, int flags, const char *dev_name, void *data, struct vfsmount *mnt) @@ -61,8 +61,8 @@ void __init proc_root_init(void) return; } proc_misc_init(); - proc_net = proc_mkdir("net", NULL); - proc_net_stat = proc_mkdir("net/stat", NULL); + + proc_net_init(); #ifdef CONFIG_SYSVIPC proc_mkdir("sysvipc", NULL); @@ -159,7 +159,5 @@ EXPORT_SYMBOL(create_proc_entry); EXPORT_SYMBOL(remove_proc_entry); EXPORT_SYMBOL(proc_root); EXPORT_SYMBOL(proc_root_fs); -EXPORT_SYMBOL(proc_net); -EXPORT_SYMBOL(proc_net_stat); EXPORT_SYMBOL(proc_bus); EXPORT_SYMBOL(proc_root_driver); |