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457c4cbc5a
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>
102 lines
2.6 KiB
C
102 lines
2.6 KiB
C
/*********************************************************************
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*
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* Filename: irproc.c
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* Version: 1.0
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* Description: Various entries in the /proc file system
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* Status: Experimental.
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* Author: Thomas Davis, <ratbert@radiks.net>
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* Created at: Sat Feb 21 21:33:24 1998
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* Modified at: Sun Nov 14 08:54:54 1999
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* Modified by: Dag Brattli <dagb@cs.uit.no>
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*
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* Copyright (c) 1998-1999, Dag Brattli <dagb@cs.uit.no>
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* Copyright (c) 1998, Thomas Davis, <ratbert@radiks.net>,
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* All Rights Reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* I, Thomas Davis, provide no warranty for any of this software.
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* This material is provided "AS-IS" and at no charge.
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*
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********************************************************************/
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#include <linux/miscdevice.h>
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#include <linux/proc_fs.h>
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#include <linux/seq_file.h>
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#include <linux/module.h>
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#include <linux/init.h>
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#include <net/net_namespace.h>
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#include <net/irda/irda.h>
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#include <net/irda/irlap.h>
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#include <net/irda/irlmp.h>
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extern struct file_operations discovery_seq_fops;
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extern struct file_operations irlap_seq_fops;
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extern struct file_operations irlmp_seq_fops;
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extern struct file_operations irttp_seq_fops;
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extern struct file_operations irias_seq_fops;
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struct irda_entry {
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const char *name;
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struct file_operations *fops;
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};
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struct proc_dir_entry *proc_irda;
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EXPORT_SYMBOL(proc_irda);
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static struct irda_entry irda_dirs[] = {
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{"discovery", &discovery_seq_fops},
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{"irttp", &irttp_seq_fops},
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{"irlmp", &irlmp_seq_fops},
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{"irlap", &irlap_seq_fops},
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{"irias", &irias_seq_fops},
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};
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/*
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* Function irda_proc_register (void)
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*
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* Register irda entry in /proc file system
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*
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*/
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void __init irda_proc_register(void)
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{
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int i;
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struct proc_dir_entry *d;
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proc_irda = proc_mkdir("irda", init_net.proc_net);
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if (proc_irda == NULL)
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return;
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proc_irda->owner = THIS_MODULE;
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for (i=0; i<ARRAY_SIZE(irda_dirs); i++) {
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d = create_proc_entry(irda_dirs[i].name, 0, proc_irda);
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if (d)
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d->proc_fops = irda_dirs[i].fops;
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}
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}
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/*
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* Function irda_proc_unregister (void)
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*
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* Unregister irda entry in /proc file system
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*
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*/
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void irda_proc_unregister(void)
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{
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int i;
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if (proc_irda) {
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for (i=0; i<ARRAY_SIZE(irda_dirs); i++)
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remove_proc_entry(irda_dirs[i].name, proc_irda);
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remove_proc_entry("irda", init_net.proc_net);
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proc_irda = NULL;
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}
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}
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