linux/fs/cifs, branch v5.11-rc3

Add SMB 2 support for getting and setting SACLs

2020-12-19T05:32:04Z

Fix passing of the additional security info via version operations. Force new open when getting SACL and avoid reuse of files that were previously open without sufficient privileges to access SACLs. Signed-off-by: Boris Protopopov Reviewed-by: Shyam Prasad N Signed-off-by: Steve French

SMB3: Add support for getting and setting SACLs

2020-12-18T19:25:57Z

Add SYSTEM_SECURITY access flag and use with smb2 when opening files for getting/setting SACLs. Add "system.cifs_ntsd_full" extended attribute to allow user-space access to the functionality. Avoid multiple server calls when setting owner, DACL, and SACL. Signed-off-by: Boris Protopopov Signed-off-by: Steve French

cifs: Avoid error pointer dereference

2020-12-18T13:40:21Z

The patch 7d6535b72042: "cifs: Simplify reconnect code when dfs upcall is enabled" leads to the following static checker warning: fs/cifs/connect.c:160 reconn_set_next_dfs_target() error: 'server->hostname' dereferencing possible ERR_PTR() Avoid dereferencing the error pointer by early returning on error condition. Reported-by: Dan Carpenter Signed-off-by: Samuel Cabrero Signed-off-by: Steve French

cifs: Re-indent cifs_swn_reconnect()

2020-12-18T06:02:37Z

This code is slightly nicer if we flip the cifs_sockaddr_equal() around and pull all the code in one tab. Signed-off-by: Dan Carpenter Reviewed-by: Samuel Cabrero Signed-off-by: Steve French

cifs: Unlock on errors in cifs_swn_reconnect()

2020-12-18T06:02:28Z

There are three error paths which need to unlock before returning. Fixes: 121d947d4fe1 ("cifs: Handle witness client move notification") Signed-off-by: Dan Carpenter Reviewed-by: Samuel Cabrero Signed-off-by: Steve French

cifs: Delete a stray unlock in cifs_swn_reconnect()

2020-12-18T06:02:16Z

The unlock is done in the caller, this is a stray which leads to a double unlock bug. Fixes: bf80e5d4259a ("cifs: Send witness register and unregister commands to userspace daemon") Signed-off-by: Dan Carpenter Reviewed-by: Samuel Cabrero Signed-off-by: Steve French

Merge tag '5.11-rc-smb3' of git://git.samba.org/sfrench/cifs-2.6

2020-12-18T01:41:37Z

Pull cifs updates from Steve French: "The largest part are for support of the newer mount API which has been needed for cifs/smb3 mounts for a long time due to the new API's better handling of remount, and better error reporting. There are three additional small cleanup patches for this being tested, that are not included yet. This series also includes addition of support for the SMB3 witness protocol which can provide important notifications from the server to client on server address or export or network changes. This can be useful for example in order to be notified before the failure - when a server's IP address changes (in the future it will allow us to support server notifications of when a share is moved). It also includes three patches for stable e.g. some that better handle some confusing error messages during session establishment" * tag '5.11-rc-smb3' of git://git.samba.org/sfrench/cifs-2.6: (55 commits) cifs: update internal module version number cifs: Fix support for remount when not changing rsize/wsize cifs: handle "guest" mount parameter cifs: correct four aliased mount parms to allow use of previous names cifs: Tracepoints and logs for tracing credit changes. cifs: fix use after free in cifs_smb3_do_mount() cifs: fix rsize/wsize to be negotiated values cifs: Fix some error pointers handling detected by static checker smb3: remind users that witness protocol is experimental cifs: update super_operations to show_devname cifs: fix uninitialized variable in smb3_fs_context_parse_param cifs: update mnt_cifs_flags during reconfigure cifs: move update of flags into a separate function cifs: remove ctx argument from cifs_setup_cifs_sb cifs: do not allow changing posix_paths during remount cifs: uncomplicate printing the iocharset parameter cifs: don't create a temp nls in cifs_setup_ipc cifs: simplify handling of cifs_sb/ctx->local_nls cifs: we do not allow changing username/password/unc/... during remount cifs: add initial reconfigure support ...

cifs: update internal module version number

2020-12-17T03:56:42Z

To 2.30 Signed-off-by: Steve French

cifs: Fix support for remount when not changing rsize/wsize

2020-12-17T03:53:14Z

When remounting with the new mount API, we need to set rsize and wsize to the previous values if they are not passed in on the remount. Otherwise they get set to zero which breaks xfstest 452 for example. Signed-off-by: Steve French Reviewed-by: Ronnie Sahlberg Reviewed-by: Shyam Prasad N

cifs: handle "guest" mount parameter

2020-12-16T23:02:34Z

With the new mount API it can not handle empty strings for mount parms ("guest" is mapped in userspace mount helper to "user=") so we have to special case it as we do for the password mount parm. Signed-off-by: Steve French Reviewed-by: Ronnie Sahlberg