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authorAneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>2010-09-28 00:27:40 +0530
committerEric Van Hensbergen <ericvh@gmail.com>2010-10-28 09:08:46 -0500
commitad77dbce567128d59b37a14c9562c8af6f63aeca (patch)
treeb178b4766e568013c3f58446aca27b1771a3694b /fs/9p/acl.c
parent6e8dc55550273084b7fb5846df2f44439f5d03d9 (diff)
fs/9p: Implement create time inheritance
Inherit default ACL on create Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Venkateswararao Jujjuri <jvrao@linux.vnet.ibm.com> Signed-off-by: Eric Van Hensbergen <ericvh@gmail.com>
Diffstat (limited to 'fs/9p/acl.c')
-rw-r--r--fs/9p/acl.c52
1 files changed, 52 insertions, 0 deletions
diff --git a/fs/9p/acl.c b/fs/9p/acl.c
index 8f2acde74c05..8b3c54a4958c 100644
--- a/fs/9p/acl.c
+++ b/fs/9p/acl.c
@@ -152,6 +152,58 @@ int v9fs_acl_chmod(struct dentry *dentry)
return retval;
}
+int v9fs_set_create_acl(struct dentry *dentry,
+ struct posix_acl *dpacl, struct posix_acl *pacl)
+{
+ if (dpacl)
+ v9fs_set_acl(dentry, ACL_TYPE_DEFAULT, dpacl);
+ if (pacl)
+ v9fs_set_acl(dentry, ACL_TYPE_ACCESS, pacl);
+ posix_acl_release(dpacl);
+ posix_acl_release(pacl);
+ return 0;
+}
+
+int v9fs_acl_mode(struct inode *dir, mode_t *modep,
+ struct posix_acl **dpacl, struct posix_acl **pacl)
+{
+ int retval = 0;
+ mode_t mode = *modep;
+ struct posix_acl *acl = NULL;
+
+ if (!S_ISLNK(mode)) {
+ acl = v9fs_get_cached_acl(dir, ACL_TYPE_DEFAULT);
+ if (IS_ERR(acl))
+ return PTR_ERR(acl);
+ if (!acl)
+ mode &= ~current_umask();
+ }
+ if (acl) {
+ struct posix_acl *clone;
+
+ if (S_ISDIR(mode))
+ *dpacl = acl;
+ clone = posix_acl_clone(acl, GFP_NOFS);
+ retval = -ENOMEM;
+ if (!clone)
+ goto cleanup;
+
+ retval = posix_acl_create_masq(clone, &mode);
+ if (retval < 0) {
+ posix_acl_release(clone);
+ goto cleanup;
+ }
+ if (retval > 0)
+ *pacl = clone;
+ }
+ *modep = mode;
+ return 0;
+cleanup:
+ posix_acl_release(acl);
+ return retval;
+
+}
+
static int v9fs_xattr_get_acl(struct dentry *dentry, const char *name,
void *buffer, size_t size, int type)
{