svn commit: r223436 - head/sys/fs/nfs
Rick Macklem
rmacklem at FreeBSD.org
Wed Jun 22 19:47:45 UTC 2011
Author: rmacklem
Date: Wed Jun 22 19:47:45 2011
New Revision: 223436
URL: http://svn.freebsd.org/changeset/base/223436
Log:
Fix the new NFSv4 client so that it uses the same uid as
was used for doing a mount when performing system operations
on AUTH_SYS mounts. This resolved an issue when mounting
a Linux server. Found during testing at the recent
NFSv4 interoperability Bakeathon.
MFC after: 2 weeks
Modified:
head/sys/fs/nfs/nfs_commonkrpc.c
Modified: head/sys/fs/nfs/nfs_commonkrpc.c
==============================================================================
--- head/sys/fs/nfs/nfs_commonkrpc.c Wed Jun 22 19:42:32 2011 (r223435)
+++ head/sys/fs/nfs/nfs_commonkrpc.c Wed Jun 22 19:47:45 2011 (r223436)
@@ -526,6 +526,20 @@ newnfs_request(struct nfsrv_descript *nd
else
secflavour = RPCSEC_GSS_KRB5;
srv_principal = NFSMNT_SRVKRBNAME(nmp);
+ } else if (nmp != NULL && !NFSHASKERB(nmp) &&
+ nd->nd_procnum != NFSPROC_NULL &&
+ (nd->nd_flag & ND_USEGSSNAME) != 0) {
+ /*
+ * Use the uid that did the mount when the RPC is doing
+ * NFSv4 system operations, as indicated by the
+ * ND_USEGSSNAME flag, for the AUTH_SYS case.
+ */
+ saved_uid = cred->cr_uid;
+ if (nmp->nm_uid != (uid_t)-1)
+ cred->cr_uid = nmp->nm_uid;
+ else
+ cred->cr_uid = 0;
+ set_uid = 1;
}
if (nmp != NULL) {
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