From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Thu, 11 Apr 2024 10:27:49 +0200 Subject: Adding upstream version 6.6.15. Signed-off-by: Daniel Baumann --- fs/reiserfs/xattr_trusted.c | 46 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 46 insertions(+) create mode 100644 fs/reiserfs/xattr_trusted.c (limited to 'fs/reiserfs/xattr_trusted.c') diff --git a/fs/reiserfs/xattr_trusted.c b/fs/reiserfs/xattr_trusted.c new file mode 100644 index 0000000000..0c0c74d8db --- /dev/null +++ b/fs/reiserfs/xattr_trusted.c @@ -0,0 +1,46 @@ +// SPDX-License-Identifier: GPL-2.0 +#include "reiserfs.h" +#include +#include +#include +#include +#include +#include "xattr.h" +#include + +static int +trusted_get(const struct xattr_handler *handler, struct dentry *unused, + struct inode *inode, const char *name, void *buffer, size_t size) +{ + if (!capable(CAP_SYS_ADMIN) || IS_PRIVATE(inode)) + return -EPERM; + + return reiserfs_xattr_get(inode, xattr_full_name(handler, name), + buffer, size); +} + +static int +trusted_set(const struct xattr_handler *handler, + struct mnt_idmap *idmap, struct dentry *unused, + struct inode *inode, const char *name, const void *buffer, + size_t size, int flags) +{ + if (!capable(CAP_SYS_ADMIN) || IS_PRIVATE(inode)) + return -EPERM; + + return reiserfs_xattr_set(inode, + xattr_full_name(handler, name), + buffer, size, flags); +} + +static bool trusted_list(struct dentry *dentry) +{ + return capable(CAP_SYS_ADMIN) && !IS_PRIVATE(d_inode(dentry)); +} + +const struct xattr_handler reiserfs_xattr_trusted_handler = { + .prefix = XATTR_TRUSTED_PREFIX, + .get = trusted_get, + .set = trusted_set, + .list = trusted_list, +}; -- cgit v1.2.3