mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-27 06:34:11 +08:00
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>
150 lines
3.5 KiB
C
150 lines
3.5 KiB
C
/* $Id: diva_didd.c,v 1.13.6.4 2005/02/11 19:40:25 armin Exp $
|
|
*
|
|
* DIDD Interface module for Eicon active cards.
|
|
*
|
|
* Functions are in dadapter.c
|
|
*
|
|
* Copyright 2002-2003 by Armin Schindler (mac@melware.de)
|
|
* Copyright 2002-2003 Cytronics & Melware (info@melware.de)
|
|
*
|
|
* This software may be used and distributed according to the terms
|
|
* of the GNU General Public License, incorporated herein by reference.
|
|
*/
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/init.h>
|
|
#include <linux/kernel.h>
|
|
#include <linux/proc_fs.h>
|
|
#include <net/net_namespace.h>
|
|
|
|
#include "platform.h"
|
|
#include "di_defs.h"
|
|
#include "dadapter.h"
|
|
#include "divasync.h"
|
|
#include "did_vers.h"
|
|
|
|
static char *main_revision = "$Revision: 1.13.6.4 $";
|
|
|
|
static char *DRIVERNAME =
|
|
"Eicon DIVA - DIDD table (http://www.melware.net)";
|
|
static char *DRIVERLNAME = "divadidd";
|
|
char *DRIVERRELEASE_DIDD = "2.0";
|
|
|
|
MODULE_DESCRIPTION("DIDD table driver for diva drivers");
|
|
MODULE_AUTHOR("Cytronics & Melware, Eicon Networks");
|
|
MODULE_SUPPORTED_DEVICE("Eicon diva drivers");
|
|
MODULE_LICENSE("GPL");
|
|
|
|
#define DBG_MINIMUM (DL_LOG + DL_FTL + DL_ERR)
|
|
#define DBG_DEFAULT (DBG_MINIMUM + DL_XLOG + DL_REG)
|
|
|
|
extern int diddfunc_init(void);
|
|
extern void diddfunc_finit(void);
|
|
|
|
extern void DIVA_DIDD_Read(void *, int);
|
|
|
|
static struct proc_dir_entry *proc_didd;
|
|
struct proc_dir_entry *proc_net_eicon = NULL;
|
|
|
|
EXPORT_SYMBOL(DIVA_DIDD_Read);
|
|
EXPORT_SYMBOL(proc_net_eicon);
|
|
|
|
static char *getrev(const char *revision)
|
|
{
|
|
char *rev;
|
|
char *p;
|
|
if ((p = strchr(revision, ':'))) {
|
|
rev = p + 2;
|
|
p = strchr(rev, '$');
|
|
*--p = 0;
|
|
} else
|
|
rev = "1.0";
|
|
return rev;
|
|
}
|
|
|
|
static int
|
|
proc_read(char *page, char **start, off_t off, int count, int *eof,
|
|
void *data)
|
|
{
|
|
int len = 0;
|
|
char tmprev[32];
|
|
|
|
strcpy(tmprev, main_revision);
|
|
len += sprintf(page + len, "%s\n", DRIVERNAME);
|
|
len += sprintf(page + len, "name : %s\n", DRIVERLNAME);
|
|
len += sprintf(page + len, "release : %s\n", DRIVERRELEASE_DIDD);
|
|
len += sprintf(page + len, "build : %s(%s)\n",
|
|
diva_didd_common_code_build, DIVA_BUILD);
|
|
len += sprintf(page + len, "revision : %s\n", getrev(tmprev));
|
|
|
|
if (off + count >= len)
|
|
*eof = 1;
|
|
if (len < off)
|
|
return 0;
|
|
*start = page + off;
|
|
return ((count < len - off) ? count : len - off);
|
|
}
|
|
|
|
static int DIVA_INIT_FUNCTION create_proc(void)
|
|
{
|
|
proc_net_eicon = proc_mkdir("eicon", init_net.proc_net);
|
|
|
|
if (proc_net_eicon) {
|
|
if ((proc_didd =
|
|
create_proc_entry(DRIVERLNAME, S_IFREG | S_IRUGO,
|
|
proc_net_eicon))) {
|
|
proc_didd->read_proc = proc_read;
|
|
}
|
|
return (1);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
static void remove_proc(void)
|
|
{
|
|
remove_proc_entry(DRIVERLNAME, proc_net_eicon);
|
|
remove_proc_entry("eicon", init_net.proc_net);
|
|
}
|
|
|
|
static int DIVA_INIT_FUNCTION divadidd_init(void)
|
|
{
|
|
char tmprev[32];
|
|
int ret = 0;
|
|
|
|
printk(KERN_INFO "%s\n", DRIVERNAME);
|
|
printk(KERN_INFO "%s: Rel:%s Rev:", DRIVERLNAME, DRIVERRELEASE_DIDD);
|
|
strcpy(tmprev, main_revision);
|
|
printk("%s Build:%s(%s)\n", getrev(tmprev),
|
|
diva_didd_common_code_build, DIVA_BUILD);
|
|
|
|
if (!create_proc()) {
|
|
printk(KERN_ERR "%s: could not create proc entry\n",
|
|
DRIVERLNAME);
|
|
ret = -EIO;
|
|
goto out;
|
|
}
|
|
|
|
if (!diddfunc_init()) {
|
|
printk(KERN_ERR "%s: failed to connect to DIDD.\n",
|
|
DRIVERLNAME);
|
|
#ifdef MODULE
|
|
remove_proc();
|
|
#endif
|
|
ret = -EIO;
|
|
goto out;
|
|
}
|
|
|
|
out:
|
|
return (ret);
|
|
}
|
|
|
|
static void DIVA_EXIT_FUNCTION divadidd_exit(void)
|
|
{
|
|
diddfunc_finit();
|
|
remove_proc();
|
|
printk(KERN_INFO "%s: module unloaded.\n", DRIVERLNAME);
|
|
}
|
|
|
|
module_init(divadidd_init);
|
|
module_exit(divadidd_exit);
|