forked from mirrors/linux
3ea4331c60
Patch fixes drawbacks in heck_syslog_permissions() noticed by AKPM: "from_file handling makes me cry. That's not a boolean - it's an enumerated value with two values currently defined. But the code in check_syslog_permissions() treats it as a boolean and also hardwires the knowledge that SYSLOG_FROM_PROC == 1 (or == `true`). And the name is wrong: it should be called from_proc to match SYSLOG_FROM_PROC." Signed-off-by: Vasily Averin <vvs@virtuozzo.com> Cc: Kees Cook <keescook@chromium.org> Cc: Josh Boyer <jwboyer@redhat.com> Cc: Eric Paris <eparis@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
61 lines
2 KiB
C
61 lines
2 KiB
C
/* Syslog internals
|
|
*
|
|
* Copyright 2010 Canonical, Ltd.
|
|
* Author: Kees Cook <kees.cook@canonical.com>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2, or (at your option)
|
|
* any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; see the file COPYING. If not, write to
|
|
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*/
|
|
|
|
#ifndef _LINUX_SYSLOG_H
|
|
#define _LINUX_SYSLOG_H
|
|
|
|
/* Close the log. Currently a NOP. */
|
|
#define SYSLOG_ACTION_CLOSE 0
|
|
/* Open the log. Currently a NOP. */
|
|
#define SYSLOG_ACTION_OPEN 1
|
|
/* Read from the log. */
|
|
#define SYSLOG_ACTION_READ 2
|
|
/* Read all messages remaining in the ring buffer. */
|
|
#define SYSLOG_ACTION_READ_ALL 3
|
|
/* Read and clear all messages remaining in the ring buffer */
|
|
#define SYSLOG_ACTION_READ_CLEAR 4
|
|
/* Clear ring buffer. */
|
|
#define SYSLOG_ACTION_CLEAR 5
|
|
/* Disable printk's to console */
|
|
#define SYSLOG_ACTION_CONSOLE_OFF 6
|
|
/* Enable printk's to console */
|
|
#define SYSLOG_ACTION_CONSOLE_ON 7
|
|
/* Set level of messages printed to console */
|
|
#define SYSLOG_ACTION_CONSOLE_LEVEL 8
|
|
/* Return number of unread characters in the log buffer */
|
|
#define SYSLOG_ACTION_SIZE_UNREAD 9
|
|
/* Return size of the log buffer */
|
|
#define SYSLOG_ACTION_SIZE_BUFFER 10
|
|
|
|
#define SYSLOG_FROM_READER 0
|
|
#define SYSLOG_FROM_PROC 1
|
|
|
|
int do_syslog(int type, char __user *buf, int count, int source);
|
|
|
|
#ifdef CONFIG_PRINTK
|
|
int check_syslog_permissions(int type, int source);
|
|
#else
|
|
static inline int check_syslog_permissions(int type, int source)
|
|
{
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
#endif /* _LINUX_SYSLOG_H */
|