include/linux/syslog.h

0001 /* SPDX-License-Identifier: GPL-2.0-or-later */
0002 /*  Syslog internals
0003  *
0004  *  Copyright 2010 Canonical, Ltd.
0005  *  Author: Kees Cook <kees.cook@canonical.com>
0006  */
0007
0008 #ifndef _LINUX_SYSLOG_H
0009 #define _LINUX_SYSLOG_H
0010
0011 /* Close the log.  Currently a NOP. */
0012 #define SYSLOG_ACTION_CLOSE          0
0013 /* Open the log. Currently a NOP. */
0014 #define SYSLOG_ACTION_OPEN           1
0015 /* Read from the log. */
0016 #define SYSLOG_ACTION_READ           2
0017 /* Read all messages remaining in the ring buffer. */
0018 #define SYSLOG_ACTION_READ_ALL       3
0019 /* Read and clear all messages remaining in the ring buffer */
0020 #define SYSLOG_ACTION_READ_CLEAR     4
0021 /* Clear ring buffer. */
0022 #define SYSLOG_ACTION_CLEAR          5
0023 /* Disable printk's to console */
0024 #define SYSLOG_ACTION_CONSOLE_OFF    6
0025 /* Enable printk's to console */
0026 #define SYSLOG_ACTION_CONSOLE_ON     7
0027 /* Set level of messages printed to console */
0028 #define SYSLOG_ACTION_CONSOLE_LEVEL  8
0029 /* Return number of unread characters in the log buffer */
0030 #define SYSLOG_ACTION_SIZE_UNREAD    9
0031 /* Return size of the log buffer */
0032 #define SYSLOG_ACTION_SIZE_BUFFER   10
0033
0034 #define SYSLOG_FROM_READER           0
0035 #define SYSLOG_FROM_PROC             1
0036
0037 int do_syslog(int type, char __user *buf, int count, int source);
0038
0039 #endif /* _LINUX_SYSLOG_H */