mount: Report correct error in the fall_back cases (bz 1709961)

Signed-off-by: Steve Dickson <steved@redhat.com>

nfs-utils-2.3.4-mount-fallback.patch

@@ -0,0 +1,49 @@
+commit a709f25c1da4a2fb44a1f3fd060298fbbd88aa3c
+Author: Steve Dickson <steved@redhat.com>
+Date:   Tue May 14 15:52:50 2019 -0400
+
+    mount: Report correct error in the fall_back cases.
+    
+    In mount auto negotiation, a v3 mount is tried
+    when the v4 fails with error that could mean
+    v4 is not supported.
+    
+    When the v3 mount fails, the original v4 failure
+    should be used to set the errno, not the v3 failure.
+    
+    Fixes:https://bugzilla.redhat.com/show_bug.cgi?id=1709961
+    Signed-off-by: Steve Dickson <steved@redhat.com>
+
+diff --git a/utils/mount/stropts.c b/utils/mount/stropts.c
+index 1bb7a73..901f995 100644
+--- a/utils/mount/stropts.c
++++ b/utils/mount/stropts.c
+@@ -889,7 +889,7 @@ out:
+  */
+ static int nfs_autonegotiate(struct nfsmount_info *mi)
+ {
+-	int result;
++	int result, olderrno;
+ 
+ 	result = nfs_try_mount_v4(mi);
+ check_result:
+@@ -949,7 +949,18 @@ fall_back:
+ 	if (mi->version.v_mode == V_GENERAL)
+ 		/* v2,3 fallback not allowed */
+ 		return result;
+-	return nfs_try_mount_v3v2(mi, FALSE);
++
++	/*
++	 * Save the original errno in case the v3 
++	 * mount fails from one of the fall_back cases. 
++	 * Report the first failure not the v3 mount failure
++	 */
++	olderrno = errno;
++	if ((result = nfs_try_mount_v3v2(mi, FALSE)))
++		return result;
++
++	errno = olderrno;
++	return result;
+ }
+ 
+ /*

nfs-utils.spec

@@ -2,7 +2,7 @@ Summary: NFS utilities and supporting clients and daemons for the kernel NFS ser
 Name: nfs-utils
 URL: http://linux-nfs.org/
 Version: 2.3.4
-Release: 0%{?dist}
+Release: 1%{?dist}
 Epoch: 1
 
 # group all 32bit related archs
@@ -16,6 +16,8 @@ Source4: nfsconvert.py
 Source5: nfsconvert.sh
 Source6: nfs-convert.service
 
+Patch001: nfs-utils-2.3.4-mount-fallback.patch
+
 Patch100: nfs-utils-1.2.1-statdpath-man.patch
 Patch101: nfs-utils-1.2.1-exp-subtree-warn-off.patch
 Patch102: nfs-utils-1.2.5-idmap-errmsg.patch
@@ -42,7 +44,7 @@ Provides: start-statd = %{epoch}:%{version}-%{release}
 License: MIT and GPLv2 and GPLv2+ and BSD
 Requires: rpcbind, sed, gawk, grep
 Requires: kmod, keyutils, quota
-BuildRequires: libevent-devel libcap-devel
+BuildRequires: libevent-devel libcap-devel libuuid-devel
 BuildRequires: libtirpc-devel libblkid-devel
 BuildRequires: krb5-libs >= 1.4 autoconf >= 2.57 openldap-devel >= 2.2
 BuildRequires: automake, libtool, gcc, device-mapper-devel
@@ -358,6 +360,9 @@ fi
 %{_pkgdir}/*/var-lib-nfs-rpc_pipefs.mount
 
 %changelog
+* Mon May 20 2019 Steve Dickson <steved@redhat.com> 2.3.4-1
+- mount: Report correct error in the fall_back cases (bz 1709961)
+
 * Fri May 10 2019 Steve Dickson <steved@redhat.com> 2.3.4-0 
 - Updated to the latest upstream release: 2.3.4 (bz 1708690)