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| author | Christian Brauner <brauner@kernel.org> | 2023-01-13 14:49:24 +0300 |
|---|---|---|
| committer | Christian Brauner (Microsoft) <brauner@kernel.org> | 2023-01-19 11:24:28 +0300 |
| commit | 700b7940526d31117fd20b7ed31156df134fbe7f (patch) | |
| tree | 26483e522f6032750ed3a77b13f92ab7fe88c076 /security/smack | |
| parent | 39f60c1ccee72caa0104145b5dbf5d37cce1ea39 (diff) | |
| download | linux-700b7940526d31117fd20b7ed31156df134fbe7f.tar.xz | |
fs: port acl to mnt_idmap
Convert to struct mnt_idmap.
Last cycle we merged the necessary infrastructure in
256c8aed2b42 ("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>
Diffstat (limited to 'security/smack')
| -rw-r--r-- | security/smack/smack_lsm.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/security/smack/smack_lsm.c b/security/smack/smack_lsm.c index 306c921759f6..cfcbb748da25 100644 --- a/security/smack/smack_lsm.c +++ b/security/smack/smack_lsm.c @@ -1394,14 +1394,14 @@ static int smack_inode_removexattr(struct mnt_idmap *idmap, /** * smack_inode_set_acl - Smack check for setting posix acls - * @mnt_userns: the userns attached to the mnt this request came from + * @idmap: idmap of the mnt this request came from * @dentry: the object * @acl_name: name of the posix acl * @kacl: the posix acls * * Returns 0 if access is permitted, an error code otherwise */ -static int smack_inode_set_acl(struct user_namespace *mnt_userns, +static int smack_inode_set_acl(struct mnt_idmap *idmap, struct dentry *dentry, const char *acl_name, struct posix_acl *kacl) { @@ -1418,13 +1418,13 @@ static int smack_inode_set_acl(struct user_namespace *mnt_userns, /** * smack_inode_get_acl - Smack check for getting posix acls - * @mnt_userns: the userns attached to the mnt this request came from + * @idmap: idmap of the mnt this request came from * @dentry: the object * @acl_name: name of the posix acl * * Returns 0 if access is permitted, an error code otherwise */ -static int smack_inode_get_acl(struct user_namespace *mnt_userns, +static int smack_inode_get_acl(struct mnt_idmap *idmap, struct dentry *dentry, const char *acl_name) { struct smk_audit_info ad; @@ -1440,13 +1440,13 @@ static int smack_inode_get_acl(struct user_namespace *mnt_userns, /** * smack_inode_remove_acl - Smack check for getting posix acls - * @mnt_userns: the userns attached to the mnt this request came from + * @idmap: idmap of the mnt this request came from * @dentry: the object * @acl_name: name of the posix acl * * Returns 0 if access is permitted, an error code otherwise */ -static int smack_inode_remove_acl(struct user_namespace *mnt_userns, +static int smack_inode_remove_acl(struct mnt_idmap *idmap, struct dentry *dentry, const char *acl_name) { struct smk_audit_info ad; |