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e67fe63341
Convert to struct mnt_idmap.
Remove legacy file_mnt_user_ns() and mnt_user_ns().
Last cycle we merged the necessary infrastructure in
256c8aed2b ("fs: introduce dedicated idmap type for mounts").
This is just the conversion to struct mnt_idmap.
Currently we still pass around the plain namespace that was attached to a
mount. This is in general pretty convenient but it makes it easy to
conflate namespaces that are relevant on the filesystem with namespaces
that are relevent on the mount level. Especially for non-vfs developers
without detailed knowledge in this area this can be a potential source for
bugs.
Once the conversion to struct mnt_idmap is done all helpers down to the
really low-level helpers will take a struct mnt_idmap argument instead of
two namespace arguments. This way it becomes impossible to conflate the two
eliminating the possibility of any bugs. All of the vfs and all filesystems
only operate on struct mnt_idmap.
Acked-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Christian Brauner (Microsoft) <brauner@kernel.org>
22 lines
736 B
C
22 lines
736 B
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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/*
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* Copyright (C) 2020 Samsung Electronics Co., Ltd.
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* Author(s): Namjae Jeon <linkinjeon@kernel.org>
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*/
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struct ndr {
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char *data;
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int offset;
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int length;
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};
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#define NDR_NTSD_OFFSETOF 0xA0
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int ndr_encode_dos_attr(struct ndr *n, struct xattr_dos_attrib *da);
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int ndr_decode_dos_attr(struct ndr *n, struct xattr_dos_attrib *da);
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int ndr_encode_posix_acl(struct ndr *n, struct mnt_idmap *idmap,
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struct inode *inode, struct xattr_smb_acl *acl,
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struct xattr_smb_acl *def_acl);
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int ndr_encode_v4_ntacl(struct ndr *n, struct xattr_ntacl *acl);
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int ndr_encode_v3_ntacl(struct ndr *n, struct xattr_ntacl *acl);
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int ndr_decode_v4_ntacl(struct ndr *n, struct xattr_ntacl *acl);
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