syslog: use defined constants instead of raw numbers

Right now the syslog "type" action are just raw numbers which makes
the source difficult to follow.  This patch replaces the raw numbers
with defined constants for some level of sanity.

Signed-off-by: Kees Cook <kees.cook@canonical.com>
Acked-by: John Johansen <john.johansen@canonical.com>
Acked-by: Serge Hallyn <serue@us.ibm.com>
Signed-off-by: James Morris <jmorris@namei.org>

1 files changed, 23 insertions, 0 deletions

diff --git a/include/linux/syslog.h b/include/linux/syslog.h
index 5f02b1817be1..38911391a139 100644
--- a/include/linux/syslog.h
+++ b/include/linux/syslog.h
@@ -21,6 +21,29 @@
 #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_CALL 0
 #define SYSLOG_FROM_FILE 1