Messages in this thread Patch in this message | | | From | "Aneesh Kumar K.V" <> | Subject | [PATCH -V8 12/26] vfs: Make acl_permission_check() work for richacls | Date | Sun, 23 Oct 2011 23:13:41 +0530 |
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From: Andreas Gruenbacher <agruen@kernel.org>
Acked-by: J. Bruce Fields <bfields@redhat.com> Acked-by: David Howells <dhowells@redhat.com> Signed-off-by: Andreas Gruenbacher <agruen@kernel.org> Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> --- fs/namei.c | 14 ++++++++++++++ 1 files changed, 14 insertions(+), 0 deletions(-)
diff --git a/fs/namei.c b/fs/namei.c index de8c7d3..2685e04 100644 --- a/fs/namei.c +++ b/fs/namei.c @@ -230,6 +230,20 @@ static int acl_permission_check(struct inode *inode, int mask) if (current_user_ns() != inode_userns(inode)) goto other_perms; + if (IS_RICHACL(inode)) { + int error = check_acl(inode, mask); + if (error != -EAGAIN) + return error; + if (mask & (MAY_DELETE_SELF | MAY_TAKE_OWNERSHIP | + MAY_CHMOD | MAY_SET_TIMES)) { + /* + * The file permission bit cannot grant these + * permissions. + */ + return -EACCES; + } + } + if (likely(current_fsuid() == inode->i_uid)) mode >>= 6; else { -- 1.7.5.4
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