kernel/git/stable/linux.git/fs/cifs/smb2inode.c, branch master

smb: move client and server files to common directory fs/smb

2023-05-24T21:29:21+00:00

Move CIFS/SMB3 related client and server files (cifs.ko and ksmbd.ko and helper modules) to new fs/smb subdirectory: fs/cifs --> fs/smb/client fs/ksmbd --> fs/smb/server fs/smbfs_common --> fs/smb/common Suggested-by: Linus Torvalds Acked-by: Namjae Jeon Signed-off-by: Steve French

cifs: append path to open_enter trace event

2023-03-24T14:02:26+00:00

We do not dump the file path for smb3_open_enter ftrace calls, which is a severe handicap while debugging using ftrace evens. This change adds that info. Unfortunately, we're not updating the path in open params in many places; which I had to do as a part of this change. SMB2_open gets path in utf16 format, but it's easier of path is supplied as char pointer in oparms. Signed-off-by: Shyam Prasad N Reviewed-by: Paulo Alcantara (SUSE) Cc: stable@vger.kernel.org Signed-off-by: Steve French

cifs: Fix smb2_set_path_size()

2023-03-14T22:36:44+00:00

If cifs_get_writable_path() finds a writable file, smb2_compound_op() must use that file's FID and not the COMPOUND_FID. Cc: stable@vger.kernel.org Signed-off-by: Volker Lendecke Reviewed-by: Paulo Alcantara (SUSE) Signed-off-by: Steve French

cifs: improve checking of DFS links over STATUS_OBJECT_NAME_INVALID

2023-03-02T00:18:25+00:00

Do not map STATUS_OBJECT_NAME_INVALID to -EREMOTE under non-DFS shares, or 'nodfs' mounts or CONFIG_CIFS_DFS_UPCALL=n builds. Otherwise, in the slow path, get a referral to figure out whether it is an actual DFS link. This could be simply reproduced under a non-DFS share by running the following $ mount.cifs //srv/share /mnt -o ... $ cat /mnt/$(printf '\U110000') cat: '/mnt/'$'\364\220\200\200': Object is remote Fixes: c877ce47e137 ("cifs: reduce roundtrips on create/qinfo requests") CC: stable@vger.kernel.org # 6.2 Signed-off-by: Paulo Alcantara (SUSE) Reviewed-by: Ronnie Sahlberg Signed-off-by: Steve French

cifs: Fix uninitialized memory reads for oparms.mode

2023-02-20T17:48:48+00:00

Use a struct assignment with implicit member initialization Signed-off-by: Volker Lendecke Cc: stable@vger.kernel.org Signed-off-by: Steve French

cifs: reduce roundtrips on create/qinfo requests

2022-12-19T14:03:11+00:00

To work around some Window servers that return STATUS_OBJECT_NAME_INVALID on query infos under DFS namespaces that contain non-ASCII characters, we started checking for -ENOENT on every file open, and if so, then send additional requests to figure out whether it is a DFS link or not. It means that all those requests will be sent to every non-existing file. So, in order to reduce the number of roundtrips, check earlier whether status code is STATUS_OBJECT_NAME_INVALID and tcon supports dfs, and if so, then map -ENOENT to -EREMOTE so mount or automount will take care of chasing the DFS link -- if it isn't an DFS link, then -ENOENT will be returned appropriately. Before patch SMB2 438 Create Request File: ada.test\dfs\foo;GetInfo Request... SMB2 310 Create Response, Error: STATUS_OBJECT_NAME_NOT_FOUND;... SMB2 228 Ioctl Request FSCTL_DFS_GET_REFERRALS, File: \ada.test\dfs\foo SMB2 143 Ioctl Response, Error: STATUS_OBJECT_PATH_NOT_FOUND SMB2 438 Create Request File: ada.test\dfs\foo;GetInfo Request... SMB2 310 Create Response, Error: STATUS_OBJECT_NAME_NOT_FOUND;... SMB2 228 Ioctl Request FSCTL_DFS_GET_REFERRALS, File: \ada.test\dfs\foo SMB2 143 Ioctl Response, Error: STATUS_OBJECT_PATH_NOT_FOUND After patch SMB2 438 Create Request File: ada.test\dfs\foo;GetInfo Request... SMB2 310 Create Response, Error: STATUS_OBJECT_NAME_NOT_FOUND;... SMB2 438 Create Request File: ada.test\dfs\foo;GetInfo Request... SMB2 310 Create Response, Error: STATUS_OBJECT_NAME_NOT_FOUND;... Signed-off-by: Paulo Alcantara (SUSE) Signed-off-by: Steve French

cifs: Parse owner/group for stat in smb311 posix extensions

2022-12-08T15:51:53+00:00

stat was returning default owner and group (unlike readdir) for SMB3.1.1 POSIX extensions Signed-off-by: Volker Lendecke Reviewed-by: Paulo Alcantara (SUSE) Signed-off-by: Steve French

cifs: Add "extbuf" and "extbuflen" args to smb2_compound_op()

2022-12-08T15:51:53+00:00

Will carry the variable-sized reply from SMB_FIND_FILE_POSIX_INFO Signed-off-by: Volker Lendecke Reviewed-by: Paulo Alcantara (SUSE) Signed-off-by: Steve French

cifs: drop the lease for cached directories on rmdir or rename

2022-10-19T22:57:41+00:00

When we delete or rename a directory we must also drop any cached lease we have on the directory. Fixes: a350d6e73f5e ("cifs: enable caching of directories for which a lease is held") Reviewed-by: Paulo Alcantara (SUSE) Signed-off-by: Ronnie Sahlberg Signed-off-by: Steve French

cifs: fix uninitialised var in smb2_compound_op()

2022-10-13T14:36:38+00:00

Fix uninitialised variable @idata when calling smb2_compound_op() with SMB2_OP_POSIX_QUERY_INFO. Reported-by: kernel test robot Signed-off-by: Paulo Alcantara (SUSE) Reviewed-by: Ronnie Sahlberg Signed-off-by: Steve French