summaryrefslogtreecommitdiff
path: root/fs/9p/acl.c
diff options
context:
space:
mode:
Diffstat (limited to 'fs/9p/acl.c')
-rw-r--r--fs/9p/acl.c121
1 files changed, 0 insertions, 121 deletions
diff --git a/fs/9p/acl.c b/fs/9p/acl.c
index 135b26cee63a..c397c51f80d9 100644
--- a/fs/9p/acl.c
+++ b/fs/9p/acl.c
@@ -343,124 +343,3 @@ int v9fs_acl_mode(struct inode *dir, umode_t *modep,
*modep = mode;
return 0;
}
-
-static int v9fs_xattr_get_acl(const struct xattr_handler *handler,
- struct dentry *dentry, struct inode *inode,
- const char *name, void *buffer, size_t size)
-{
- struct v9fs_session_info *v9ses;
- struct posix_acl *acl;
- int error;
-
- v9ses = v9fs_dentry2v9ses(dentry);
- /*
- * We allow set/get/list of acl when access=client is not specified
- */
- if ((v9ses->flags & V9FS_ACCESS_MASK) != V9FS_ACCESS_CLIENT)
- return v9fs_xattr_get(dentry, handler->name, buffer, size);
-
- acl = v9fs_get_cached_acl(inode, handler->flags);
- if (IS_ERR(acl))
- return PTR_ERR(acl);
- if (acl == NULL)
- return -ENODATA;
- error = posix_acl_to_xattr(&init_user_ns, acl, buffer, size);
- posix_acl_release(acl);
-
- return error;
-}
-
-static int v9fs_xattr_set_acl(const struct xattr_handler *handler,
- struct user_namespace *mnt_userns,
- struct dentry *dentry, struct inode *inode,
- const char *name, const void *value,
- size_t size, int flags)
-{
- int retval;
- struct posix_acl *acl;
- struct v9fs_session_info *v9ses;
-
- v9ses = v9fs_dentry2v9ses(dentry);
- /*
- * set the attribute on the remote. Without even looking at the
- * xattr value. We leave it to the server to validate
- */
- if ((v9ses->flags & V9FS_ACCESS_MASK) != V9FS_ACCESS_CLIENT)
- return v9fs_xattr_set(dentry, handler->name, value, size,
- flags);
-
- if (S_ISLNK(inode->i_mode))
- return -EOPNOTSUPP;
- if (!inode_owner_or_capable(&init_user_ns, inode))
- return -EPERM;
- if (value) {
- /* update the cached acl value */
- acl = posix_acl_from_xattr(&init_user_ns, value, size);
- if (IS_ERR(acl))
- return PTR_ERR(acl);
- else if (acl) {
- retval = posix_acl_valid(inode->i_sb->s_user_ns, acl);
- if (retval)
- goto err_out;
- }
- } else
- acl = NULL;
-
- switch (handler->flags) {
- case ACL_TYPE_ACCESS:
- if (acl) {
- struct iattr iattr = { 0 };
- struct posix_acl *old_acl = acl;
-
- retval = posix_acl_update_mode(&init_user_ns, inode,
- &iattr.ia_mode, &acl);
- if (retval)
- goto err_out;
- if (!acl) {
- /*
- * ACL can be represented
- * by the mode bits. So don't
- * update ACL.
- */
- posix_acl_release(old_acl);
- value = NULL;
- size = 0;
- }
- iattr.ia_valid = ATTR_MODE;
- /* FIXME should we update ctime ?
- * What is the following setxattr update the
- * mode ?
- */
- v9fs_vfs_setattr_dotl(&init_user_ns, dentry, &iattr);
- }
- break;
- case ACL_TYPE_DEFAULT:
- if (!S_ISDIR(inode->i_mode)) {
- retval = acl ? -EINVAL : 0;
- goto err_out;
- }
- break;
- default:
- BUG();
- }
- retval = v9fs_xattr_set(dentry, handler->name, value, size, flags);
- if (!retval)
- set_cached_acl(inode, handler->flags, acl);
-err_out:
- posix_acl_release(acl);
- return retval;
-}
-
-const struct xattr_handler v9fs_xattr_acl_access_handler = {
- .name = XATTR_NAME_POSIX_ACL_ACCESS,
- .flags = ACL_TYPE_ACCESS,
- .get = v9fs_xattr_get_acl,
- .set = v9fs_xattr_set_acl,
-};
-
-const struct xattr_handler v9fs_xattr_acl_default_handler = {
- .name = XATTR_NAME_POSIX_ACL_DEFAULT,
- .flags = ACL_TYPE_DEFAULT,
- .get = v9fs_xattr_get_acl,
- .set = v9fs_xattr_set_acl,
-};