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| author | Hyunchul Lee <hyc.lee@gmail.com> | 2021-06-30 12:25:53 +0300 |
|---|---|---|
| committer | Namjae Jeon <namjae.jeon@samsung.com> | 2021-07-02 10:27:10 +0300 |
| commit | af34983e831587472333e47c86a350a2360c6093 (patch) | |
| tree | 0db387e95eb0372e4e6ebb6304671603d0c9690a /fs/ksmbd/smb_common.c | |
| parent | ef24c962d0f29036041a007a75bcd0f50233c83e (diff) | |
| download | linux-af34983e831587472333e47c86a350a2360c6093.tar.xz | |
ksmbd: add user namespace support
For user namespace support, call vfs functions
with struct user_namespace got from struct path.
This patch have been tested mannually as below.
Create an id-mapped mount using the mount-idmapped utility
(https://github.com/brauner/mount-idmapped).
$ mount-idmapped --map-mount b:1003:1002:1 /home/foo <EXPORT DIR>/foo
(the user, "foo" is 1003, and the user "bar" is 1002).
And mount the export directory using cifs with the user, "bar".
succeed to create/delete/stat/read/write files and directory in
the <EXPORT DIR>/foo. But fail with a bind mount for /home/foo.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Hyunchul Lee <hyc.lee@gmail.com>
Signed-off-by: Namjae Jeon <namjae.jeon@samsung.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs/ksmbd/smb_common.c')
| -rw-r--r-- | fs/ksmbd/smb_common.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/fs/ksmbd/smb_common.c b/fs/ksmbd/smb_common.c index b573575a1de5..f770f3ffb840 100644 --- a/fs/ksmbd/smb_common.c +++ b/fs/ksmbd/smb_common.c @@ -274,6 +274,7 @@ int ksmbd_populate_dot_dotdot_entries(struct ksmbd_work *work, int info_level, char *search_pattern, int (*fn)(struct ksmbd_conn *, int, struct ksmbd_dir_info *, + struct user_namespace *, struct ksmbd_kstat *)) { int i, rc = 0; @@ -300,9 +301,11 @@ int ksmbd_populate_dot_dotdot_entries(struct ksmbd_work *work, int info_level, ksmbd_kstat.kstat = &kstat; ksmbd_vfs_fill_dentry_attrs(work, + file_mnt_user_ns(dir->filp), dir->filp->f_path.dentry->d_parent, &ksmbd_kstat); - rc = fn(conn, info_level, d_info, &ksmbd_kstat); + rc = fn(conn, info_level, d_info, + file_mnt_user_ns(dir->filp), &ksmbd_kstat); if (rc) break; if (d_info->out_buf_len <= 0) |