Change the default uid/gid values for nobody/nogroup to 65534/65533.

The default values found in /etc/passwd and /etc/group are 65534, 65533.
In mountd.c, the defaults were -2, which was 65534 back when uid_t was 16bits.
Without this patch, a file created by root on an NFS exported volume without
the "-root=" export option will end up owned by uid 4**32 - 2.
When discussed on freebsd-current@, it seemed that users preferred the
values being changed to 65534/65533.
I have not added code to acquire these values from the databases, since
the mountd daemon might get "stuck" during startup waiting for a non-responsive
password database server.

Discussed on:	freebsd-current

1 files changed, 4 insertions, 4 deletions

diff --git a/usr.sbin/mountd/mountd.c b/usr.sbin/mountd/mountd.c
index 206ef578c502..66c47255a518 100644
--- a/usr.sbin/mountd/mountd.c
+++ b/usr.sbin/mountd/mountd.c
@@ -230,9 +230,9 @@ static char **exnames;
 static char **hosts = NULL;
 static struct xucred def_anon = {
 	XUCRED_VERSION,
-	(uid_t)-2,
+	(uid_t)65534,
 	1,
-	{ (gid_t)-2 },
+	{ (gid_t)65533 },
 	NULL
 };
 static int force_v2 = 0;
@@ -2893,8 +2893,8 @@ parsecred(char *namelist, struct xucred *cr)
 	/*
 	 * Set up the unprivileged user.
 	 */
-	cr->cr_uid = -2;
-	cr->cr_groups[0] = -2;
+	cr->cr_uid = 65534;
+	cr->cr_groups[0] = 65533;
 	cr->cr_ngroups = 1;
 	/*
 	 * Get the user's password table entry.