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| author | J. Bruce Fields <bfields@snoopy.citi.umich.edu> | 2007-02-16 01:28:34 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@woody.linux-foundation.org> | 2007-02-16 08:14:01 -0800 |
| commit | f43daf67871d9da5c638994416b4144eac63c992 (patch) | |
| tree | 6452a3c8e7b92a0e6d7c87d375e4c81d124756fb | |
| parent | f34f924274ad8f84c6d86ea9e52b0682347f5701 (diff) | |
| download | blackbird-op-linux-f43daf67871d9da5c638994416b4144eac63c992.tar.gz blackbird-op-linux-f43daf67871d9da5c638994416b4144eac63c992.zip | |
[PATCH] knfsd: nfsd4: acls: don't return explicit mask
Return just the effective permissions, and forget about the mask. It isn't
worth the complexity.
WARNING: This breaks backwards compatibility with overly-picky nfsv4->posix
acl translation, as may has been included in some patched versions of libacl.
To our knowledge no such version was every distributed by anyone outside citi.
Signed-off-by: J. Bruce Fields <bfields@citi.umich.edu>
Signed-off-by: Neil Brown <neilb@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| -rw-r--r-- | fs/nfsd/nfs4acl.c | 25 |
1 files changed, 7 insertions, 18 deletions
diff --git a/fs/nfsd/nfs4acl.c b/fs/nfsd/nfs4acl.c index 2797051cd2b4..8daa3f8bb303 100644 --- a/fs/nfsd/nfs4acl.c +++ b/fs/nfsd/nfs4acl.c @@ -180,7 +180,8 @@ _posix_to_nfsv4_one(struct posix_acl *pacl, struct nfs4_acl *acl, unsigned int flags) { struct posix_acl_entry *pa, *pe, *group_owner_entry; - u32 mask, mask_mask; + u32 mask; + unsigned short mask_mask; int eflag = ((flags & NFS4_ACL_TYPE_DEFAULT) ? NFS4_INHERITANCE_FLAGS : 0); @@ -188,9 +189,9 @@ _posix_to_nfsv4_one(struct posix_acl *pacl, struct nfs4_acl *acl, pe = pacl->a_entries + pacl->a_count; pa = pe - 2; /* if mask entry exists, it's second from the last. */ if (pa->e_tag == ACL_MASK) - mask_mask = deny_mask(mask_from_posix(pa->e_perm, flags), flags); + mask_mask = pa->e_perm; else - mask_mask = 0; + mask_mask = S_IRWXO; pa = pacl->a_entries; BUG_ON(pa->e_tag != ACL_USER_OBJ); @@ -199,10 +200,7 @@ _posix_to_nfsv4_one(struct posix_acl *pacl, struct nfs4_acl *acl, pa++; while (pa->e_tag == ACL_USER) { - mask = mask_from_posix(pa->e_perm, flags); - nfs4_acl_add_ace(acl, NFS4_ACE_ACCESS_DENIED_ACE_TYPE, - eflag, mask_mask, NFS4_ACL_WHO_NAMED, pa->e_id); - + mask = mask_from_posix(pa->e_perm & mask_mask, flags); nfs4_acl_add_pair(acl, eflag, mask, NFS4_ACL_WHO_NAMED, pa->e_id, flags); pa++; @@ -213,24 +211,15 @@ _posix_to_nfsv4_one(struct posix_acl *pacl, struct nfs4_acl *acl, /* allow ACEs */ - if (pacl->a_count > 3) { - BUG_ON(pa->e_tag != ACL_GROUP_OBJ); - nfs4_acl_add_ace(acl, NFS4_ACE_ACCESS_DENIED_ACE_TYPE, - NFS4_ACE_IDENTIFIER_GROUP | eflag, mask_mask, - NFS4_ACL_WHO_GROUP, 0); - } group_owner_entry = pa; - mask = mask_from_posix(pa->e_perm, flags); + mask = mask_from_posix(pa->e_perm & mask_mask, flags); nfs4_acl_add_ace(acl, NFS4_ACE_ACCESS_ALLOWED_ACE_TYPE, NFS4_ACE_IDENTIFIER_GROUP | eflag, mask, NFS4_ACL_WHO_GROUP, 0); pa++; while (pa->e_tag == ACL_GROUP) { - mask = mask_from_posix(pa->e_perm, flags); - nfs4_acl_add_ace(acl, NFS4_ACE_ACCESS_DENIED_ACE_TYPE, - NFS4_ACE_IDENTIFIER_GROUP | eflag, mask_mask, - NFS4_ACL_WHO_NAMED, pa->e_id); + mask = mask_from_posix(pa->e_perm & mask_mask, flags); nfs4_acl_add_ace(acl, NFS4_ACE_ACCESS_ALLOWED_ACE_TYPE, NFS4_ACE_IDENTIFIER_GROUP | eflag, mask, NFS4_ACL_WHO_NAMED, pa->e_id); |
