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| author | Christian Brauner <brauner@kernel.org> | 2023-01-13 14:49:23 +0300 |
|---|---|---|
| committer | Christian Brauner (Microsoft) <brauner@kernel.org> | 2023-01-19 11:24:28 +0300 |
| commit | 39f60c1ccee72caa0104145b5dbf5d37cce1ea39 (patch) | |
| tree | 2c445a4d7a0f2b577fa280e97ec129be26b5e32a /include/linux/evm.h | |
| parent | 4609e1f18e19c3b302e1eb4858334bca1532f780 (diff) | |
| download | linux-39f60c1ccee72caa0104145b5dbf5d37cce1ea39.tar.xz | |
fs: port xattr 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 'include/linux/evm.h')
| -rw-r--r-- | include/linux/evm.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/include/linux/evm.h b/include/linux/evm.h index 1f8f806dd0d1..e06aacd3e315 100644 --- a/include/linux/evm.h +++ b/include/linux/evm.h @@ -24,14 +24,14 @@ extern enum integrity_status evm_verifyxattr(struct dentry *dentry, extern int evm_inode_setattr(struct mnt_idmap *idmap, struct dentry *dentry, struct iattr *attr); extern void evm_inode_post_setattr(struct dentry *dentry, int ia_valid); -extern int evm_inode_setxattr(struct user_namespace *mnt_userns, +extern int evm_inode_setxattr(struct mnt_idmap *idmap, struct dentry *dentry, const char *name, const void *value, size_t size); extern void evm_inode_post_setxattr(struct dentry *dentry, const char *xattr_name, const void *xattr_value, size_t xattr_value_len); -extern int evm_inode_removexattr(struct user_namespace *mnt_userns, +extern int evm_inode_removexattr(struct mnt_idmap *idmap, struct dentry *dentry, const char *xattr_name); extern void evm_inode_post_removexattr(struct dentry *dentry, const char *xattr_name); @@ -101,7 +101,7 @@ static inline void evm_inode_post_setattr(struct dentry *dentry, int ia_valid) return; } -static inline int evm_inode_setxattr(struct user_namespace *mnt_userns, +static inline int evm_inode_setxattr(struct mnt_idmap *idmap, struct dentry *dentry, const char *name, const void *value, size_t size) { @@ -116,7 +116,7 @@ static inline void evm_inode_post_setxattr(struct dentry *dentry, return; } -static inline int evm_inode_removexattr(struct user_namespace *mnt_userns, +static inline int evm_inode_removexattr(struct mnt_idmap *idmap, struct dentry *dentry, const char *xattr_name) { |