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authorAmy Griffis <amy.griffis@hp.com>2006-04-07 16:55:56 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2006-06-20 05:25:27 -0400
commitf368c07d7214a7c41dfceb76c8db473b850f0229 (patch)
treee3f1e2d1a6ffbe61bf99ece51b906654728db4c9 /include/linux/audit.h
parent20ca73bc792be9625af184cbec36e1372611d1c3 (diff)
[PATCH] audit: path-based rules
In this implementation, audit registers inotify watches on the parent directories of paths specified in audit rules. When audit's inotify event handler is called, it updates any affected rules based on the filesystem event. If the parent directory is renamed, removed, or its filesystem is unmounted, audit removes all rules referencing that inotify watch. To keep things simple, this implementation limits location-based auditing to the directory entries in an existing directory. Given a path-based rule for /foo/bar/passwd, the following table applies: passwd modified -- audit event logged passwd replaced -- audit event logged, rules list updated bar renamed -- rule removed foo renamed -- untracked, meaning that the rule now applies to the new location Audit users typically want to have many rules referencing filesystem objects, which can significantly impact filtering performance. This patch also adds an inode-number-based rule hash to mitigate this situation. The patch is relative to the audit git tree: http://kernel.org/git/?p=linux/kernel/git/viro/audit-current.git;a=summary and uses the inotify kernel API: http://lkml.org/lkml/2006/6/1/145 Signed-off-by: Amy Griffis <amy.griffis@hp.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'include/linux/audit.h')
-rw-r--r--include/linux/audit.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/linux/audit.h b/include/linux/audit.h
index 7c8780b150e6..c78327507f4e 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -165,6 +165,7 @@
165#define AUDIT_INODE 102 165#define AUDIT_INODE 102
166#define AUDIT_EXIT 103 166#define AUDIT_EXIT 103
167#define AUDIT_SUCCESS 104 /* exit >= 0; value ignored */ 167#define AUDIT_SUCCESS 104 /* exit >= 0; value ignored */
168#define AUDIT_WATCH 105
168 169
169#define AUDIT_ARG0 200 170#define AUDIT_ARG0 200
170#define AUDIT_ARG1 (AUDIT_ARG0+1) 171#define AUDIT_ARG1 (AUDIT_ARG0+1)