diff options
| author | Hyunchul Lee <hyc.lee@gmail.com> | 2021-06-30 18:25:53 +0900 |
|---|---|---|
| committer | Namjae Jeon <namjae.jeon@samsung.com> | 2021-07-02 16:27:10 +0900 |
| commit | af34983e831587472333e47c86a350a2360c6093 (patch) | |
| tree | 0db387e95eb0372e4e6ebb6304671603d0c9690a /fs/ksmbd/oplock.c | |
| parent | ef24c962d0f29036041a007a75bcd0f50233c83e (diff) | |
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/oplock.c')
| -rw-r--r-- | fs/ksmbd/oplock.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/fs/ksmbd/oplock.c b/fs/ksmbd/oplock.c index a9f171ccf770..5484b5bf75b0 100644 --- a/fs/ksmbd/oplock.c +++ b/fs/ksmbd/oplock.c @@ -1612,9 +1612,9 @@ void create_posix_rsp_buf(char *cc, struct ksmbd_file *fp) buf->nlink = cpu_to_le32(inode->i_nlink); buf->reparse_tag = cpu_to_le32(fp->volatile_id); buf->mode = cpu_to_le32(inode->i_mode); - id_to_sid(from_kuid(&init_user_ns, inode->i_uid), + id_to_sid(from_kuid(file_mnt_user_ns(fp->filp), inode->i_uid), SIDNFS_USER, (struct smb_sid *)&buf->SidBuffer[0]); - id_to_sid(from_kgid(&init_user_ns, inode->i_gid), + id_to_sid(from_kgid(file_mnt_user_ns(fp->filp), inode->i_gid), SIDNFS_GROUP, (struct smb_sid *)&buf->SidBuffer[20]); } |