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authorAl Viro <viro@zeniv.linux.org.uk>2006-08-31 19:26:40 -0400
committerAl Viro <viro@zeniv.linux.org.uk>2006-09-11 13:32:30 -0400
commit55669bfa141b488be865341ed12e188967d11308 (patch)
treeefeec37a93f46c48937eb849c083da9a42ed3709 /kernel/auditfilter.c
parentdc104fb3231f11e95b5a0f09ae3ab27a8fd5b2e8 (diff)
[PATCH] audit: AUDIT_PERM support
add support for AUDIT_PERM predicate Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'kernel/auditfilter.c')
-rw-r--r--kernel/auditfilter.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/kernel/auditfilter.c b/kernel/auditfilter.c
index e4cafc11c510..a44879b0c72f 100644
--- a/kernel/auditfilter.c
+++ b/kernel/auditfilter.c
@@ -302,6 +302,15 @@ int __init audit_register_class(int class, unsigned *list)
return 0;
}
+int audit_match_class(int class, unsigned syscall)
+{
+ if (unlikely(syscall >= AUDIT_BITMASK_SIZE * sizeof(__u32)))
+ return 0;
+ if (unlikely(class >= AUDIT_SYSCALL_CLASSES || !classes[class]))
+ return 0;
+ return classes[class][AUDIT_WORD(syscall)] & AUDIT_BIT(syscall);
+}
+
/* Common user-space to kernel rule translation. */
static inline struct audit_entry *audit_to_entry_common(struct audit_rule *rule)
{
@@ -414,6 +423,10 @@ static struct audit_entry *audit_rule_to_entry(struct audit_rule *rule)
case AUDIT_ARG2:
case AUDIT_ARG3:
break;
+ case AUDIT_PERM:
+ if (f->val & ~15)
+ goto exit_free;
+ break;
case AUDIT_INODE:
err = audit_to_inode(&entry->rule, f);
if (err)
@@ -568,6 +581,10 @@ static struct audit_entry *audit_data_to_entry(struct audit_rule_data *data,
entry->rule.buflen += f->val;
entry->rule.filterkey = str;
break;
+ case AUDIT_PERM:
+ if (f->val & ~15)
+ goto exit_free;
+ break;
default:
goto exit_free;
}

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