[PATCH] add filtering by ppid

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

2 files changed, 5 insertions, 0 deletions

diff --git a/include/linux/audit.h b/include/linux/audit.h
index 1057e90bd3e3..8f6424f2b604 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -152,6 +152,7 @@
 #define AUDIT_SE_TYPE   15      /* security label type */
 #define AUDIT_SE_SEN    16      /* security label sensitivity label */
 #define AUDIT_SE_CLR    17      /* security label clearance label */
+#define AUDIT_PPID      18
 
                                 /* These are ONLY useful when checking
                                  * at syscall exit time (AUDIT_AT_EXIT). */
diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index 4fc3867fa25a..e4551659ad79 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -188,6 +188,10 @@ static int audit_filter_rules(struct task_struct *tsk,
                 case AUDIT_PID:
                         result = audit_comparator(tsk->pid, f->op, f->val);
                         break;
+                case AUDIT_PPID:
+                        if (ctx)
+                                result = audit_comparator(ctx->ppid, f->op, f->val);
+                        break;
                 case AUDIT_UID:
                         result = audit_comparator(tsk->uid, f->op, f->val);
                         break;