1 /* SPDX-License-Identifier: GPL-2.0-or-later */
4 * Copyright 2010 Canonical, Ltd.
5 * Author: Kees Cook <kees.cook@canonical.com>
8 #ifndef _LINUX_SYSLOG_H
9 #define _LINUX_SYSLOG_H
11 /* Close the log. Currently a NOP. */
12 #define SYSLOG_ACTION_CLOSE 0
13 /* Open the log. Currently a NOP. */
14 #define SYSLOG_ACTION_OPEN 1
15 /* Read from the log. */
16 #define SYSLOG_ACTION_READ 2
17 /* Read all messages remaining in the ring buffer. */
18 #define SYSLOG_ACTION_READ_ALL 3
19 /* Read and clear all messages remaining in the ring buffer */
20 #define SYSLOG_ACTION_READ_CLEAR 4
21 /* Clear ring buffer. */
22 #define SYSLOG_ACTION_CLEAR 5
23 /* Disable printk's to console */
24 #define SYSLOG_ACTION_CONSOLE_OFF 6
25 /* Enable printk's to console */
26 #define SYSLOG_ACTION_CONSOLE_ON 7
27 /* Set level of messages printed to console */
28 #define SYSLOG_ACTION_CONSOLE_LEVEL 8
29 /* Return number of unread characters in the log buffer */
30 #define SYSLOG_ACTION_SIZE_UNREAD 9
31 /* Return size of the log buffer */
32 #define SYSLOG_ACTION_SIZE_BUFFER 10
34 #define SYSLOG_FROM_READER 0
35 #define SYSLOG_FROM_PROC 1
37 int do_syslog(int type, char __user *buf, int count, int source);
39 #endif /* _LINUX_SYSLOG_H */