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| author | Christian Brauner <christian.brauner@ubuntu.com> | 2021-01-21 14:19:43 +0100 |
|---|---|---|
| committer | Christian Brauner <christian.brauner@ubuntu.com> | 2021-01-24 14:27:20 +0100 |
| commit | 549c7297717c32ee53f156cd949e055e601f67bb (patch) | |
| tree | d096bc02f780bdee69a701952d5568f4be9972c1 /fs/ceph/super.h | |
| parent | exec: handle idmapped mounts (diff) | |
| download | linux-549c7297717c32ee53f156cd949e055e601f67bb.tar.xz linux-549c7297717c32ee53f156cd949e055e601f67bb.zip | |
fs: make helpers idmap mount aware
Extend some inode methods with an additional user namespace argument. A
filesystem that is aware of idmapped mounts will receive the user
namespace the mount has been marked with. This can be used for
additional permission checking and also to enable filesystems to
translate between uids and gids if they need to. We have implemented all
relevant helpers in earlier patches.
As requested we simply extend the exisiting inode method instead of
introducing new ones. This is a little more code churn but it's mostly
mechanical and doesnt't leave us with additional inode methods.
Link: https://lore.kernel.org/r/20210121131959.646623-25-christian.brauner@ubuntu.com
Cc: Christoph Hellwig <hch@lst.de>
Cc: David Howells <dhowells@redhat.com>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Cc: linux-fsdevel@vger.kernel.org
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Christian Brauner <christian.brauner@ubuntu.com>
Diffstat (limited to 'fs/ceph/super.h')
| -rw-r--r-- | fs/ceph/super.h | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/fs/ceph/super.h b/fs/ceph/super.h index b62d8fee3b86..1ef0a2a15817 100644 --- a/fs/ceph/super.h +++ b/fs/ceph/super.h @@ -973,10 +973,13 @@ static inline int ceph_do_getattr(struct inode *inode, int mask, bool force) { return __ceph_do_getattr(inode, NULL, mask, force); } -extern int ceph_permission(struct inode *inode, int mask); +extern int ceph_permission(struct user_namespace *mnt_userns, + struct inode *inode, int mask); extern int __ceph_setattr(struct inode *inode, struct iattr *attr); -extern int ceph_setattr(struct dentry *dentry, struct iattr *attr); -extern int ceph_getattr(const struct path *path, struct kstat *stat, +extern int ceph_setattr(struct user_namespace *mnt_userns, + struct dentry *dentry, struct iattr *attr); +extern int ceph_getattr(struct user_namespace *mnt_userns, + const struct path *path, struct kstat *stat, u32 request_mask, unsigned int flags); /* xattr.c */ @@ -1037,7 +1040,8 @@ void ceph_release_acl_sec_ctx(struct ceph_acl_sec_ctx *as_ctx); #ifdef CONFIG_CEPH_FS_POSIX_ACL struct posix_acl *ceph_get_acl(struct inode *, int); -int ceph_set_acl(struct inode *inode, struct posix_acl *acl, int type); +int ceph_set_acl(struct user_namespace *mnt_userns, + struct inode *inode, struct posix_acl *acl, int type); int ceph_pre_init_acls(struct inode *dir, umode_t *mode, struct ceph_acl_sec_ctx *as_ctx); void ceph_init_inode_acls(struct inode *inode, |