[oe-commits] [openembedded-core] 43/60: nfs-utils: fix protocol minor version fall-back

[git at git.openembedded.org]

rpurdie pushed a commit to branch master
in repository openembedded-core.

commit 332596628697d28ae6e8c2271c9658aaf5e54796
Author: Yi Zhao <yi.zhao at windriver.com>
AuthorDate: Wed Nov 16 18:07:43 2016 +0800

    nfs-utils: fix protocol minor version fall-back
    
    Mount nfs directory would fail if no specific nfsvers:
    mount -t nfs IP:/foo/bar/ /mnt/
    mount.nfs: an incorrect mount option was specified
    
    mount.nfs currently expects mount(2) to fail with EPROTONOSUPPORT if
    the kernel doesn't understand the requested NFS version.
    Unfortunately if the requested minor is not known to the kernel
    it returns -EINVAL.
    
    Backport patch from nfs-utils-1.3.4 to fix this issue.
    
    Signed-off-by: Yi Zhao <yi.zhao at windriver.com>
    Signed-off-by: Ross Burton <ross.burton at intel.com>
---
 .../fix-protocol-minor-version-fall-back.patch     | 55 ++++++++++++++++++++++
 .../nfs-utils/nfs-utils_1.3.3.bb                   |  1 +
 2 files changed, 56 insertions(+)

diff --git a/meta/recipes-connectivity/nfs-utils/nfs-utils/fix-protocol-minor-version-fall-back.patch b/meta/recipes-connectivity/nfs-utils/nfs-utils/fix-protocol-minor-version-fall-back.patch
new file mode 100644
index 0000000..683246c
--- /dev/null
+++ b/meta/recipes-connectivity/nfs-utils/nfs-utils/fix-protocol-minor-version-fall-back.patch
@@ -0,0 +1,55 @@
+From 78bb645a42c216b37b8d930c7c849a3fa89babf8 Mon Sep 17 00:00:00 2001
+From: Takashi Iwai <tiwai at suse.com>
+Date: Sat, 16 Jan 2016 12:02:30 -0500
+Subject: [PATCH] Fix protocol minor version fall-back
+
+mount.nfs currently expects mount(2) to fail with EPROTONOSUPPORT if
+the kernel doesn't understand the requested NFS version.
+
+Unfortunately if the requested minor is not known to the kernel
+it returns -EINVAL.
+In kernels since 3.11 this can happen in nfs4_alloc_client(), if
+compiled without NFS_V4_2.
+
+More generally it can happen in in nfs_validate_text_mount_data()
+when nfs_parse_mount_options() returns 0 because
+nfs_parse_version_string()
+didn't recognise the version.
+
+EPROTONOSUPPORT is only returned if NFSv4 support is completely compiled
+out.
+
+So nfs_autonegotiate needs to check for EINVAL as well as
+EPROTONOSUPPORT.
+
+URL: https://bugzilla.opensuse.org/show_bug.cgi?id=959211
+Reported-by: Takashi Iwai <tiwai at suse.com>
+Signed-off-by: NeilBrown <neilb at suse.com>
+Signed-off-by: Steve Dickson <steved at redhat.com>
+
+
+Upstream-Status: Backport
+http://git.linux-nfs.org/?p=steved/nfs-utils.git;a=patch;h=78bb645a42c216b37b8d930c7c849a3fa89babf8
+
+Signed-off-by: Yi Zhao <yi.zhao at windriver.com>
+---
+ utils/mount/stropts.c | 3 +++
+ 1 file changed, 3 insertions(+)
+
+diff --git a/utils/mount/stropts.c b/utils/mount/stropts.c
+index c8f5a6d..86829a9 100644
+--- a/utils/mount/stropts.c
++++ b/utils/mount/stropts.c
+@@ -841,6 +841,9 @@ check_result:
+ 	case EPROTONOSUPPORT:
+ 		/* A clear indication that the server or our
+ 		 * client does not support NFS version 4 and minor */
++	case EINVAL:
++		/* A less clear indication that our client
++		 * does not support NFSv4 minor version. */
+ 		if (mi->version.v_mode == V_GENERAL &&
+ 			mi->version.minor == 0)
+ 				return result;
+-- 
+2.7.4
+
diff --git a/meta/recipes-connectivity/nfs-utils/nfs-utils_1.3.3.bb b/meta/recipes-connectivity/nfs-utils/nfs-utils_1.3.3.bb
index 8540503..a2bebe0 100644
--- a/meta/recipes-connectivity/nfs-utils/nfs-utils_1.3.3.bb
+++ b/meta/recipes-connectivity/nfs-utils/nfs-utils_1.3.3.bb
@@ -33,6 +33,7 @@ SRC_URI = "${KERNELORG_MIRROR}/linux/utils/nfs-utils/${PV}/nfs-utils-${PV}.tar.x
            file://nfs-utils-debianize-start-statd.patch \
            file://0001-nfs-utils-statd-fix-a-segfault-caused-by-improper-us.patch \
            file://bugfix-adjust-statd-service-name.patch \
+           file://fix-protocol-minor-version-fall-back.patch \
 "
 
 SRC_URI[md5sum] = "cd6b568c2e9301cc3bfac09d87fbbc0b"

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