Remove explicit rejection of zero duid in disk_map() added in 1.262.

Spoofed labels have zero duid and there is no reason not to allow them to
work with duid notation.

ok kn@

diff --git a/sys/kern/subr_disk.c b/sys/kern/subr_disk.c
index 9d7383b..f90d41d 100644 (file)
--- a/sys/kern/subr_disk.c
+++ b/sys/kern/subr_disk.c
@@ -1,4 +1,4 @@
-/*     $OpenBSD: subr_disk.c,v 1.270 2022/11/11 18:53:29 krw Exp $     */
+/*     $OpenBSD: subr_disk.c,v 1.271 2023/02/10 07:00:12 miod Exp $    */
 /*     $NetBSD: subr_disk.c,v 1.17 1996/03/16 23:17:08 christos Exp $  */
 
 /*
@@ -1806,9 +1806,7 @@ disk_map(char *path, char *mappath, int size, int flags)
 
        mdk = NULL;
        TAILQ_FOREACH(dk, &disklist, dk_link) {
-               if (dk->dk_label &&
-                   !duid_iszero(dk->dk_label->d_uid) &&
-                   memcmp(dk->dk_label->d_uid, uid,
+               if (dk->dk_label && memcmp(dk->dk_label->d_uid, uid,
                    sizeof(dk->dk_label->d_uid)) == 0) {
                        /* Fail if there are duplicate UIDs! */
                        if (mdk != NULL)