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authorRichard Guy Briggs <rgb@redhat.com>2015-08-05 16:29:37 -0400
committerPaul Moore <pmoore@redhat.com>2015-08-06 16:17:25 -0400
commit34d99af52ad40bd498ba66970579a5bc1fb1a3bc (patch)
treefcab34928eb893eff68506685675420f0afba08e /kernel/audit.h
parent7f49294282c49ef426ed05eb4959728524ba140c (diff)
downloadlinux-sh-34d99af52ad40bd498ba66970579a5bc1fb1a3bc.tar.gz
audit: implement audit by executable
This adds the ability audit the actions of a not-yet-running process. This patch implements the ability to filter on the executable path. Instead of just hard coding the ino and dev of the executable we care about at the moment the rule is inserted into the kernel, use the new audit_fsnotify infrastructure to manage this dynamically. This means that if the filename does not yet exist but the containing directory does, or if the inode in question is unlinked and creat'd (aka updated) the rule will just continue to work. If the containing directory is moved or deleted or the filesystem is unmounted, the rule is deleted automatically. A future enhancement would be to have the rule survive across directory disruptions. This is a heavily modified version of a patch originally submitted by Eric Paris with some ideas from Peter Moody. Cc: Peter Moody <peter@hda3.com> Cc: Eric Paris <eparis@redhat.com> Signed-off-by: Richard Guy Briggs <rgb@redhat.com> [PM: minor whitespace clean to satisfy ./scripts/checkpatch] Signed-off-by: Paul Moore <pmoore@redhat.com>
Diffstat (limited to 'kernel/audit.h')
-rw-r--r--kernel/audit.h4
1 files changed, 4 insertions, 0 deletions
diff --git a/kernel/audit.h b/kernel/audit.h
index 7102d538737b..24ec86145667 100644
--- a/kernel/audit.h
+++ b/kernel/audit.h
@@ -274,6 +274,8 @@ extern char *audit_mark_path(struct audit_fsnotify_mark *mark);
extern void audit_remove_mark(struct audit_fsnotify_mark *audit_mark);
extern void audit_remove_mark_rule(struct audit_krule *krule);
extern int audit_mark_compare(struct audit_fsnotify_mark *mark, unsigned long ino, dev_t dev);
+extern int audit_dupe_exe(struct audit_krule *new, struct audit_krule *old);
+extern int audit_exe_compare(struct task_struct *tsk, struct audit_fsnotify_mark *mark);
#else
#define audit_put_watch(w) {}
@@ -289,6 +291,8 @@ extern int audit_mark_compare(struct audit_fsnotify_mark *mark, unsigned long in
#define audit_remove_mark(m)
#define audit_remove_mark_rule(k)
#define audit_mark_compare(m, i, d) 0
+#define audit_exe_compare(t, m) (-EINVAL)
+#define audit_dupe_exe(n, o) (-EINVAL)
#endif /* CONFIG_AUDIT_WATCH */
#ifdef CONFIG_AUDIT_TREE