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path: root/fs/cifs/fs_context.c
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2021-01-13fs: cifs: remove unneeded variable in smb3_fs_context_dupMenglong Dong1-3/+1
'rc' in smb3_fs_context_dup is not used and can be removed. Signed-off-by: Menglong Dong <dong.menglong@zte.com.cn> Reviewed-by: Aurelien Aptel <aaptel@suse.com> Signed-off-by: Steve French <stfrench@microsoft.com>
2020-12-17cifs: Fix support for remount when not changing rsize/wsizeSteve French1-0/+7
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 <stfrench@microsoft.com> Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com> Reviewed-by: Shyam Prasad N <sprasad@microsoft.com>
2020-12-17cifs: handle "guest" mount parameterSteve French1-0/+4
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 <stfrench@microsoft.com> Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
2020-12-16cifs: correct four aliased mount parms to allow use of previous namesSteve French1-5/+10
The updates to the new mount API created aliases for some mount parms e.g. esize, idsfromsid, modefromsid, signloosely as "min_enc_offload", "setuidfromacl", "modesid", "ignore_signature" but did not add back in the original name expected by test cases and current users. It also had incorrect names for a few less used mount parms. Signed-off-by: Steve French <stfrench@microsoft.com> Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
2020-12-16smb3: remind users that witness protocol is experimentalSteve French1-0/+1
warn_once when using the witness protocol that it is experimental Signed-off-by: Steve French <stfrench@microsoft.com> Reviewed-by: Samuel Cabrero <scabrero@suse.de> Reviewed-by: Shyam Prasad N <sprasad@microsoft.com>
2020-12-14cifs: fix uninitialized variable in smb3_fs_context_parse_paramRonnie Sahlberg1-1/+3
Addresses an issue noted by the kernel test robot Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Steve French <stfrench@microsoft.com> Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com>
2020-12-14cifs: update mnt_cifs_flags during reconfigureRonnie Sahlberg1-0/+1
Many mount flags (e.g. for noperm, noxattr, nobrl, cifsacl, mfsymlinks and more) can be updated now. Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com> Signed-off-by: Steve French <stfrench@microsoft.com>
2020-12-14cifs: move update of flags into a separate functionRonnie Sahlberg1-0/+155
This function will set/clear flags that can be changed during mount or remount Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com> Signed-off-by: Steve French <stfrench@microsoft.com>
2020-12-14cifs: do not allow changing posix_paths during remountRonnie Sahlberg1-0/+4
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com> Signed-off-by: Steve French <stfrench@microsoft.com>
2020-12-14cifs: simplify handling of cifs_sb/ctx->local_nlsRonnie Sahlberg1-4/+0
Only load/unload local_nls from cifs_sb and just make the ctx contain a pointer to cifs_sb->ctx. Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com> Signed-off-by: Steve French <stfrench@microsoft.com>
2020-12-14cifs: we do not allow changing username/password/unc/... during remountRonnie Sahlberg1-3/+50
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com> Signed-off-by: Steve French <stfrench@microsoft.com>
2020-12-14cifs: add initial reconfigure supportRonnie Sahlberg1-3/+33
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com> Signed-off-by: Steve French <stfrench@microsoft.com>
2020-12-14cifs: move [brw]size from cifs_sb to cifs_sb->ctxRonnie Sahlberg1-0/+3
Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com> Signed-off-by: Steve French <stfrench@microsoft.com>
2020-12-14cifs: move cifs_cleanup_volume_info[_content] to fs_context.cRonnie Sahlberg1-3/+42
and rename it to smb3_cleanup_fs_context[_content] Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com> Signed-off-by: Steve French <stfrench@microsoft.com>
2020-12-14cifs: Add missing sentinel to smb3_fs_parametersDmitry Osipenko1-0/+1
Add missing sentinel to smb3_fs_parameters. This fixes ARM32 kernel crashing once CIFS is registered. Unable to handle kernel paging request at virtual address 33626d73 ... (strcmp) from (fs_validate_description) (fs_validate_description) from (register_filesystem) (register_filesystem) from (init_cifs [cifs]) (init_cifs [cifs]) from (do_one_initcall) (do_one_initcall) from (do_init_module) (do_init_module) from (load_module) (load_module) from (sys_finit_module) (sys_finit_module) from (ret_fast_syscal) Fixes: e07724d1cf38 ("cifs: switch to new mount api") Signed-off-by: Dmitry Osipenko <digetx@gmail.com> Reviewed-by: Aurelien Aptel <aaptel@suse.com> Signed-off-by: Steve French <stfrench@microsoft.com>
2020-12-14cifs: add witness mount option and data structsSamuel Cabrero1-0/+8
Add 'witness' mount option to register for witness notifications. Signed-off-by: Samuel Cabrero <scabrero@suse.de> Reviewed-by: Aurelien Aptel <aaptel@suse.com> Signed-off-by: Steve French <stfrench@microsoft.com>
2020-12-14cifs: switch to new mount apiRonnie Sahlberg1-72/+991
See Documentation/filesystems/mount_api.rst for details on new mount API Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com> Signed-off-by: Steve French <stfrench@microsoft.com>
2020-12-14cifs: move cifs_parse_devname to fs_context.cRonnie Sahlberg1-0/+56
Also rename the function from cifs_ to smb3_ Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com> Signed-off-by: Steve French <stfrench@microsoft.com>
2020-12-14cifs: rename dup_vol to smb3_fs_context_dup and move it into fs_context.cRonnie Sahlberg1-0/+41
Continue restructuring needed for support of new mount API Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com> Signed-off-by: Steve French <stfrench@microsoft.com>
2020-12-14cifs: rename smb_vol as smb3_fs_context and move it to fs_context.hRonnie Sahlberg1-51/+51
Harmonize and change all such variables to 'ctx', where possible. No changes to actual logic. Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com> Signed-off-by: Steve French <stfrench@microsoft.com>
2020-10-22cifs: move smb version mount options into fs_context.cRonnie Sahlberg1-0/+85
This and related patches which move mount related code to fs_context.c has the advantage of shriking the code in fs/cifs/connect.c (which had the second most lines of code of any of the files in cifs.ko and was getting harder to read due to its size) and will also make it easier to switch over to the new mount API in the future. Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com> Reviewed-by: Aurelien Aptel <aaptel@suse.com> Signed-off-by: Steve French <stfrench@microsoft.com>
2020-10-22cifs: move cache mount options to fs_context.chRonnie Sahlberg1-0/+52
Helps to shrink connect.c and make it more readable by moving mount related code to fs_context.c and fs_context.h Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com> Signed-off-by: Steve French <stfrench@microsoft.com> Reviewed-by: Aurelien Aptel <aaptel@suse.com>
2020-10-22cifs: move security mount options into fs_context.chRonnie Sahlberg1-0/+76
This patch moves the parsing of security mount options into fs_context.ch. There are no changes to any logic. Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com> Signed-off-by: Steve French <stfrench@microsoft.com> Reviewed-by: Aurelien Aptel <aaptel@suse.com>
2020-10-22cifs: add files to host new mount apiRonnie Sahlberg1-0/+8
This will make it easier in the future, but also will allow us to shrink connect.c which is getting too big, and harder to read Signed-off-by: Ronnie Sahlberg <lsahlber@redhat.com> Signed-off-by: Steve French <stfrench@microsoft.com> Reviewed-by: Aurelien Aptel <aaptel@suse.com>
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