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authorPaul Moore <pmoore@redhat.com>2015-01-22 00:00:10 -0500
committerAl Viro <viro@zeniv.linux.org.uk>2015-01-23 00:23:52 -0500
commitfd3522fdc84023b050bb40318d9fc71a9adc22bc (patch)
treedc0df711a6d6590a1944469b7d8b6f5fe9641f12 /kernel/auditsc.c
parentcbaab2db9103cc6727c7166d2fda9f64038c828c (diff)
downloadlinux-sh-fd3522fdc84023b050bb40318d9fc71a9adc22bc.tar.gz
audit: enable filename recording via getname_kernel()
Enable recording of filenames in getname_kernel() and remove the kludgy workaround in __audit_inode() now that we have proper filename logging for kernel users. CC: viro@zeniv.linux.org.uk CC: linux-fsdevel@vger.kernel.org Signed-off-by: Paul Moore <pmoore@redhat.com> Reviewed-by: Richard Guy Briggs <rgb@redhat.com> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'kernel/auditsc.c')
-rw-r--r--kernel/auditsc.c40
1 files changed, 3 insertions, 37 deletions
diff --git a/kernel/auditsc.c b/kernel/auditsc.c
index 072566dd0caf..132dbcdef6ec 100644
--- a/kernel/auditsc.c
+++ b/kernel/auditsc.c
@@ -1882,44 +1882,10 @@ out_alloc:
n = audit_alloc_name(context, AUDIT_TYPE_UNKNOWN);
if (!n)
return;
- /* unfortunately, while we may have a path name to record with the
- * inode, we can't always rely on the string lasting until the end of
- * the syscall so we need to create our own copy, it may fail due to
- * memory allocation issues, but we do our best */
- if (name) {
- /* we can't use getname_kernel() due to size limits */
- size_t len = strlen(name->name) + 1;
- struct filename *new = __getname();
-
- if (unlikely(!new))
- goto out;
+ if (name)
+ /* no need to set ->name_put as the original will cleanup */
+ n->name = name;
- if (len <= (PATH_MAX - sizeof(*new))) {
- new->name = (char *)(new) + sizeof(*new);
- new->separate = false;
- } else if (len <= PATH_MAX) {
- /* this looks odd, but is due to final_putname() */
- struct filename *new2;
-
- new2 = kmalloc(sizeof(*new2), GFP_KERNEL);
- if (unlikely(!new2)) {
- __putname(new);
- goto out;
- }
- new2->name = (char *)new;
- new2->separate = true;
- new = new2;
- } else {
- /* we should never get here, but let's be safe */
- __putname(new);
- goto out;
- }
- strlcpy((char *)new->name, name->name, len);
- new->uptr = NULL;
- new->aname = n;
- n->name = new;
- n->name_put = true;
- }
out:
if (parent) {
n->name_len = n->name ? parent_len(n->name->name) : AUDIT_NAME_FULL;