1 /* SPDX-License-Identifier: GPL-2.0-or-later */
3 * Copyright (C) 2020, Microsoft Corporation.
5 * Author(s): Steve French <stfrench@microsoft.com>
6 * David Howells <dhowells@redhat.com>
13 #include <linux/parser.h>
14 #include <linux/fs_parser.h>
16 /* Log errors in fs_context (new mount api) but also in dmesg (old style) */
17 #define cifs_errorf(fc, fmt, ...) \
19 errorf(fc, fmt, ## __VA_ARGS__); \
20 cifs_dbg(VFS, fmt, ## __VA_ARGS__); \
58 /* Mount options that take no arguments */
79 Opt_forcemandatorylock,
109 /* Mount options which take numeric value */
132 /* Mount options which take string value */
147 /* Mount options to be ignored */
153 struct smb3_fs_context {
155 bool cruid_specified;
171 char *iocharset; /* local code page for mapping to and from Unicode */
172 char source_rfc1001_name[RFC1001_NAME_LEN_WITH_NULL]; /* clnt nb name */
173 char target_rfc1001_name[RFC1001_NAME_LEN_WITH_NULL]; /* srvr nb name */
181 enum securityEnum sectype; /* sectype requested via mnt opts */
182 bool sign; /* was signing requested via mnt opts? */
183 bool ignore_signature:1;
187 bool setuidfromacl:1;
194 bool no_psx_acl:1; /* set if posix acl support should be disabled */
196 bool backupuid_specified; /* mount option backupuid is specified */
197 bool backupgid_specified; /* mount option backupgid is specified */
198 bool no_xattr:1; /* set if xattr (EA) support should be disabled*/
199 bool server_ino:1; /* use inode numbers from server ie UniqueId */
201 bool strict_io:1; /* strict cache behavior */
204 bool remap:1; /* set to remap seven reserved chars in filenames */
205 bool sfu_remap:1; /* remap seven reserved chars ala SFU */
206 bool posix_paths:1; /* unset to not ask for posix pathnames. */
210 bool nullauth:1; /* attempt to authenticate with null user */
211 bool nocase:1; /* request case insensitive filenames */
212 bool nobrl:1; /* disable sending byte range locks to srv */
213 bool nohandlecache:1; /* disable caching dir handles if srvr probs */
214 bool mand_lock:1; /* send mandatory not posix byte range lock reqs */
215 bool seal:1; /* request transport encryption on share */
216 bool nodfs:1; /* Do not request DFS, even if available */
217 bool local_lease:1; /* check leases only on local system, not remote */
220 bool nostrictsync:1; /* do not force expensive SMBflush on every sync */
221 bool no_lease:1; /* disable requesting leases */
222 bool fsc:1; /* enable fscache */
223 bool mfsymlinks:1; /* use Minshall+French Symlinks */
225 bool rwpidforward:1; /* pid forward for read/write operations */
229 bool resilient:1; /* noresilient not required since not fored for CA */
233 bool use_client_guid:1;
234 /* reuse existing guid for multichannel */
235 u8 client_guid[SMB2_CLIENT_GUID_SIZE];
240 unsigned int min_offload;
241 bool sockopt_tcp_nodelay:1;
242 /* attribute cache timemout for files and directories in jiffies */
243 unsigned long acregmax;
244 unsigned long acdirmax;
245 struct smb_version_operations *ops;
246 struct smb_version_values *vals;
248 struct sockaddr_storage dstaddr; /* destination address */
249 struct sockaddr_storage srcaddr; /* allow binding to a local IP */
250 struct nls_table *local_nls; /* This is a copy of the pointer in cifs_sb */
251 unsigned int echo_interval; /* echo interval in secs */
252 __u64 snapshot_time; /* needed for timewarp tokens */
253 __u32 handle_timeout; /* persistent and durable handle timeout in ms */
254 unsigned int max_credits; /* smb3 max_credits 10 < credits < 60000 */
255 unsigned int max_channels;
256 __u16 compression; /* compression algorithm 0xFFFF default 0=disabled */
257 bool rootfs:1; /* if it's a SMB root file system */
258 bool witness:1; /* use witness protocol */
263 extern const struct fs_parameter_spec smb3_fs_parameters[];
265 extern int smb3_init_fs_context(struct fs_context *fc);
266 extern void smb3_cleanup_fs_context_contents(struct smb3_fs_context *ctx);
267 extern void smb3_cleanup_fs_context(struct smb3_fs_context *ctx);
269 static inline struct smb3_fs_context *smb3_fc2context(const struct fs_context *fc)
271 return fc->fs_private;
274 extern int smb3_fs_context_dup(struct smb3_fs_context *new_ctx, struct smb3_fs_context *ctx);
275 extern void smb3_update_mnt_flags(struct cifs_sb_info *cifs_sb);