diff options
| author | Steve French <stfrench@microsoft.com> | 2020-10-23 06:03:14 +0300 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2020-10-23 23:38:10 +0300 |
| commit | 2e4564b31b645f599d531e2c8bd0e47316e02223 (patch) | |
| tree | 8327c6e83d7546e973f4cef68c670d4d2a6c204b /fs/cifs/smb2inode.c | |
| parent | 0613ed91901b5f87afcd28b4560fb0aa37a0db13 (diff) | |
| download | linux-2e4564b31b645f599d531e2c8bd0e47316e02223.tar.xz | |
smb3: add support for stat of WSL reparse points for special file types
This is needed so when mounting to Windows we do not
misinterpret various special files created by Linux (WSL) as symlinks.
An earlier patch addressed readdir. This patch fixes stat (getattr).
With this patch:
File: /mnt1/char
Size: 0 Blocks: 0 IO Block: 16384 character special file
Device: 34h/52d Inode: 844424930132069 Links: 1 Device type: 0,0
Access: (0755/crwxr-xr-x) Uid: ( 0/ root) Gid: ( 0/ root)
Access: 2020-10-21 17:46:51.839458900 -0500
Modify: 2020-10-21 17:46:51.839458900 -0500
Change: 2020-10-21 18:30:39.797358800 -0500
Birth: -
File: /mnt1/fifo
Size: 0 Blocks: 0 IO Block: 16384 fifo
Device: 34h/52d Inode: 1125899906842722 Links: 1
Access: (0755/prwxr-xr-x) Uid: ( 0/ root) Gid: ( 0/ root)
Access: 2020-10-21 16:21:37.259249700 -0500
Modify: 2020-10-21 16:21:37.259249700 -0500
Change: 2020-10-21 18:30:39.797358800 -0500
Birth: -
File: /mnt1/block
Size: 0 Blocks: 0 IO Block: 16384 block special file
Device: 34h/52d Inode: 844424930132068 Links: 1 Device type: 0,0
Access: (0755/brwxr-xr-x) Uid: ( 0/ root) Gid: ( 0/ root)
Access: 2020-10-21 17:10:47.913103200 -0500
Modify: 2020-10-21 17:10:47.913103200 -0500
Change: 2020-10-21 18:30:39.796725500 -0500
Birth: -
without the patch all show up incorrectly as symlinks with annoying "operation not supported error also returned"
File: /mnt1/charstat: cannot read symbolic link '/mnt1/char': Operation not supported
Size: 0 Blocks: 0 IO Block: 16384 symbolic link
Device: 34h/52d Inode: 844424930132069 Links: 1
Access: (0000/l---------) Uid: ( 0/ root) Gid: ( 0/ root)
Access: 2020-10-21 17:46:51.839458900 -0500
Modify: 2020-10-21 17:46:51.839458900 -0500
Change: 2020-10-21 18:30:39.797358800 -0500
Birth: -
File: /mnt1/fifostat: cannot read symbolic link '/mnt1/fifo': Operation not supported
Size: 0 Blocks: 0 IO Block: 16384 symbolic link
Device: 34h/52d Inode: 1125899906842722 Links: 1
Access: (0000/l---------) Uid: ( 0/ root) Gid: ( 0/ root)
Access: 2020-10-21 16:21:37.259249700 -0500
Modify: 2020-10-21 16:21:37.259249700 -0500
Change: 2020-10-21 18:30:39.797358800 -0500
Birth: -
File: /mnt1/blockstat: cannot read symbolic link '/mnt1/block': Operation not supported
Size: 0 Blocks: 0 IO Block: 16384 symbolic link
Device: 34h/52d Inode: 844424930132068 Links: 1
Access: (0000/l---------) Uid: ( 0/ root) Gid: ( 0/ root)
Access: 2020-10-21 17:10:47.913103200 -0500
Modify: 2020-10-21 17:10:47.913103200 -0500
Change: 2020-10-21 18:30:39.796725500 -0500
Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Diffstat (limited to 'fs/cifs/smb2inode.c')
| -rw-r--r-- | fs/cifs/smb2inode.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/fs/cifs/smb2inode.c b/fs/cifs/smb2inode.c index df6212e55e10..1f900b81c34a 100644 --- a/fs/cifs/smb2inode.c +++ b/fs/cifs/smb2inode.c @@ -506,7 +506,7 @@ move_smb2_info_to_cifs(FILE_ALL_INFO *dst, struct smb2_file_all_info *src) int smb2_query_path_info(const unsigned int xid, struct cifs_tcon *tcon, struct cifs_sb_info *cifs_sb, const char *full_path, - FILE_ALL_INFO *data, bool *adjust_tz, bool *symlink) + FILE_ALL_INFO *data, bool *adjust_tz, bool *reparse) { int rc; struct smb2_file_all_info *smb2_data; @@ -516,7 +516,7 @@ smb2_query_path_info(const unsigned int xid, struct cifs_tcon *tcon, struct cached_fid *cfid = NULL; *adjust_tz = false; - *symlink = false; + *reparse = false; smb2_data = kzalloc(sizeof(struct smb2_file_all_info) + PATH_MAX * 2, GFP_KERNEL); @@ -548,7 +548,7 @@ smb2_query_path_info(const unsigned int xid, struct cifs_tcon *tcon, FILE_READ_ATTRIBUTES, FILE_OPEN, create_options, ACL_NO_MODE, smb2_data, SMB2_OP_QUERY_INFO, cfile); if (rc == -EOPNOTSUPP) { - *symlink = true; + *reparse = true; create_options |= OPEN_REPARSE_POINT; /* Failed on a symbolic link - query a reparse point info */ @@ -570,7 +570,7 @@ out: int smb311_posix_query_path_info(const unsigned int xid, struct cifs_tcon *tcon, struct cifs_sb_info *cifs_sb, const char *full_path, - struct smb311_posix_qinfo *data, bool *adjust_tz, bool *symlink) + struct smb311_posix_qinfo *data, bool *adjust_tz, bool *reparse) { int rc; __u32 create_options = 0; @@ -578,7 +578,7 @@ smb311_posix_query_path_info(const unsigned int xid, struct cifs_tcon *tcon, struct smb311_posix_qinfo *smb2_data; *adjust_tz = false; - *symlink = false; + *reparse = false; /* BB TODO: Make struct larger when add support for parsing owner SIDs */ smb2_data = kzalloc(sizeof(struct smb311_posix_qinfo), @@ -599,7 +599,7 @@ smb311_posix_query_path_info(const unsigned int xid, struct cifs_tcon *tcon, ACL_NO_MODE, smb2_data, SMB2_OP_POSIX_QUERY_INFO, cfile); if (rc == -EOPNOTSUPP) { /* BB TODO: When support for special files added to Samba re-verify this path */ - *symlink = true; + *reparse = true; create_options |= OPEN_REPARSE_POINT; /* Failed on a symbolic link - query a reparse point info */ |