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From: NeilBrown <neilb@suse.com>
To: "J. Bruce Fields" <bfields@fieldses.org>
Cc: linux-nfs@vger.kernel.org
Subject: [PATCH - nfsv4-acl-tools] nfs4_ace_from_string: ignore inheritance ACEs on non-directories.
Date: Wed, 24 Feb 2016 14:54:18 +1100	[thread overview]
Message-ID: <8760xen4ph.fsf@notabene.neil.brown.name> (raw)

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If you try to use
     nfs4_setfacl -R -a A:d:........   directory

to recursively set an inheritance ACE on all directories in a tree, it
will fail on the first non-directory as setting an inheritance ACE
there is not permitted (and as it aborts on the first sign of an error).

So use the is_dir flag to avoid doing that, just as is done with the
DELETE_CHILD permission.

Signed-off-by: NeilBrown <neilb@suse.com>
---

Hi Bruce,
 are you still maintaining nfsv4-acl-tools?  Last commit was over
 a year ago!! I guess that means it is nearly perfect :-)
 
 A customer came across this problem and it seems simple to fix,
 but if I'm missing something important, please let me know.

NeilBrown


 libnfs4acl/nfs4_ace_from_string.c | 12 ++++++++----
 1 file changed, 8 insertions(+), 4 deletions(-)

diff --git a/libnfs4acl/nfs4_ace_from_string.c b/libnfs4acl/nfs4_ace_from_string.c
index 510ffee35d32..a7a30360d860 100644
--- a/libnfs4acl/nfs4_ace_from_string.c
+++ b/libnfs4acl/nfs4_ace_from_string.c
@@ -185,16 +185,20 @@ struct nfs4_ace * nfs4_ace_from_string(char *ace_buf, int is_dir)
 	for (buflen = strlen(field); buflen > 0; buflen--) {
 		switch (*field) {
 			case FLAG_FILE_INHERIT:
-				flags |= NFS4_ACE_FILE_INHERIT_ACE;
+				if (is_dir)
+					flags |= NFS4_ACE_FILE_INHERIT_ACE;
 				break;
 			case FLAG_DIR_INHERIT:
-				flags |= NFS4_ACE_DIRECTORY_INHERIT_ACE;
+				if (is_dir)
+					flags |= NFS4_ACE_DIRECTORY_INHERIT_ACE;
 				break;
 			case FLAG_NO_PROPAGATE_INHERIT:
-				flags |= NFS4_ACE_NO_PROPAGATE_INHERIT_ACE;
+				if (is_dir)
+					flags |= NFS4_ACE_NO_PROPAGATE_INHERIT_ACE;
 				break;
 			case FLAG_INHERIT_ONLY:
-				flags |= NFS4_ACE_INHERIT_ONLY_ACE;
+				if (is_dir)
+					flags |= NFS4_ACE_INHERIT_ONLY_ACE;
 				break;
 			case FLAG_SUCCESSFUL_ACCESS:
 				flags |= NFS4_ACE_SUCCESSFUL_ACCESS_ACE_FLAG;
-- 
2.7.1


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             reply	other threads:[~2016-02-24  3:54 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-02-24  3:54 NeilBrown [this message]
2016-03-14 21:06 ` [PATCH - nfsv4-acl-tools] nfs4_ace_from_string: ignore inheritance ACEs on non-directories J. Bruce Fields
2016-03-15 22:32   ` NeilBrown

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