| /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| /* |
| * Copyright (C) 2020, Microsoft Corporation. |
| * |
| * Author(s): Steve French <stfrench@microsoft.com> |
| * David Howells <dhowells@redhat.com> |
| */ |
| |
| #ifndef _FS_CONTEXT_H |
| #define _FS_CONTEXT_H |
| |
| #include "cifsglob.h" |
| #include <linux/parser.h> |
| #include <linux/fs_parser.h> |
| |
| /* Log errors in fs_context (new mount api) but also in dmesg (old style) */ |
| #define cifs_errorf(fc, fmt, ...) \ |
| do { \ |
| errorf(fc, fmt, ## __VA_ARGS__); \ |
| cifs_dbg(VFS, fmt, ## __VA_ARGS__); \ |
| } while (0) |
| |
| enum smb_version { |
| Smb_1 = 1, |
| Smb_20, |
| Smb_21, |
| Smb_30, |
| Smb_302, |
| Smb_311, |
| Smb_3any, |
| Smb_default, |
| Smb_version_err |
| }; |
| |
| enum { |
| Opt_cache_loose, |
| Opt_cache_strict, |
| Opt_cache_none, |
| Opt_cache_ro, |
| Opt_cache_rw, |
| Opt_cache_err |
| }; |
| |
| enum cifs_reparse_parm { |
| Opt_reparse_default, |
| Opt_reparse_nfs, |
| Opt_reparse_wsl, |
| Opt_reparse_err |
| }; |
| |
| enum cifs_sec_param { |
| Opt_sec_krb5, |
| Opt_sec_krb5i, |
| Opt_sec_krb5p, |
| Opt_sec_ntlmsspi, |
| Opt_sec_ntlmssp, |
| Opt_sec_ntlmv2, |
| Opt_sec_ntlmv2i, |
| Opt_sec_none, |
| |
| Opt_sec_err |
| }; |
| |
| enum cifs_param { |
| /* Mount options that take no arguments */ |
| Opt_user_xattr, |
| Opt_forceuid, |
| Opt_forcegid, |
| Opt_noblocksend, |
| Opt_noautotune, |
| Opt_nolease, |
| Opt_nosparse, |
| Opt_hard, |
| Opt_soft, |
| Opt_perm, |
| Opt_nodelete, |
| Opt_mapposix, |
| Opt_mapchars, |
| Opt_nomapchars, |
| Opt_sfu, |
| Opt_nodfs, |
| Opt_posixpaths, |
| Opt_unix, |
| Opt_nocase, |
| Opt_brl, |
| Opt_handlecache, |
| Opt_forcemandatorylock, |
| Opt_setuidfromacl, |
| Opt_setuids, |
| Opt_dynperm, |
| Opt_intr, |
| Opt_strictsync, |
| Opt_serverino, |
| Opt_rwpidforward, |
| Opt_cifsacl, |
| Opt_acl, |
| Opt_locallease, |
| Opt_sign, |
| Opt_ignore_signature, |
| Opt_seal, |
| Opt_noac, |
| Opt_fsc, |
| Opt_mfsymlinks, |
| Opt_multiuser, |
| Opt_sloppy, |
| Opt_nosharesock, |
| Opt_persistent, |
| Opt_resilient, |
| Opt_tcp_nodelay, |
| Opt_domainauto, |
| Opt_rdma, |
| Opt_modesid, |
| Opt_rootfs, |
| Opt_multichannel, |
| Opt_compress, |
| Opt_witness, |
| |
| /* Mount options which take numeric value */ |
| Opt_backupuid, |
| Opt_backupgid, |
| Opt_uid, |
| Opt_cruid, |
| Opt_gid, |
| Opt_port, |
| Opt_file_mode, |
| Opt_dirmode, |
| Opt_min_enc_offload, |
| Opt_retrans, |
| Opt_blocksize, |
| Opt_rasize, |
| Opt_rsize, |
| Opt_wsize, |
| Opt_actimeo, |
| Opt_acdirmax, |
| Opt_acregmax, |
| Opt_closetimeo, |
| Opt_echo_interval, |
| Opt_max_credits, |
| Opt_max_cached_dirs, |
| Opt_snapshot, |
| Opt_max_channels, |
| Opt_handletimeout, |
| |
| /* Mount options which take string value */ |
| Opt_source, |
| Opt_user, |
| Opt_pass, |
| Opt_pass2, |
| Opt_ip, |
| Opt_domain, |
| Opt_srcaddr, |
| Opt_iocharset, |
| Opt_netbiosname, |
| Opt_servern, |
| Opt_ver, |
| Opt_vers, |
| Opt_sec, |
| Opt_cache, |
| Opt_reparse, |
| |
| /* Mount options to be ignored */ |
| Opt_ignore, |
| |
| Opt_err |
| }; |
| |
| struct smb3_fs_context { |
| bool forceuid_specified; |
| bool forcegid_specified; |
| bool uid_specified; |
| bool cruid_specified; |
| bool gid_specified; |
| bool sloppy; |
| bool got_ip; |
| bool got_version; |
| bool got_rsize; |
| bool got_wsize; |
| bool got_bsize; |
| unsigned short port; |
| |
| char *username; |
| char *password; |
| char *password2; |
| char *domainname; |
| char *source; |
| char *server_hostname; |
| char *UNC; |
| char *nodename; |
| char workstation_name[CIFS_MAX_WORKSTATION_LEN]; |
| char *iocharset; /* local code page for mapping to and from Unicode */ |
| char source_rfc1001_name[RFC1001_NAME_LEN_WITH_NULL]; /* clnt nb name */ |
| char target_rfc1001_name[RFC1001_NAME_LEN_WITH_NULL]; /* srvr nb name */ |
| kuid_t cred_uid; |
| kuid_t linux_uid; |
| kgid_t linux_gid; |
| kuid_t backupuid; |
| kgid_t backupgid; |
| umode_t file_mode; |
| umode_t dir_mode; |
| enum securityEnum sectype; /* sectype requested via mnt opts */ |
| bool sign; /* was signing requested via mnt opts? */ |
| bool ignore_signature:1; |
| bool retry:1; |
| bool intr:1; |
| bool setuids:1; |
| bool setuidfromacl:1; |
| bool override_uid:1; |
| bool override_gid:1; |
| bool dynperm:1; |
| bool noperm:1; |
| bool nodelete:1; |
| bool mode_ace:1; |
| bool no_psx_acl:1; /* set if posix acl support should be disabled */ |
| bool cifs_acl:1; |
| bool backupuid_specified; /* mount option backupuid is specified */ |
| bool backupgid_specified; /* mount option backupgid is specified */ |
| bool no_xattr:1; /* set if xattr (EA) support should be disabled*/ |
| bool server_ino:1; /* use inode numbers from server ie UniqueId */ |
| bool direct_io:1; |
| bool strict_io:1; /* strict cache behavior */ |
| bool cache_ro:1; |
| bool cache_rw:1; |
| bool remap:1; /* set to remap seven reserved chars in filenames */ |
| bool sfu_remap:1; /* remap seven reserved chars ala SFU */ |
| bool posix_paths:1; /* unset to not ask for posix pathnames. */ |
| bool no_linux_ext:1; |
| bool linux_ext:1; |
| bool sfu_emul:1; |
| bool nullauth:1; /* attempt to authenticate with null user */ |
| bool nocase:1; /* request case insensitive filenames */ |
| bool nobrl:1; /* disable sending byte range locks to srv */ |
| bool nohandlecache:1; /* disable caching dir handles if srvr probs */ |
| bool mand_lock:1; /* send mandatory not posix byte range lock reqs */ |
| bool seal:1; /* request transport encryption on share */ |
| bool nodfs:1; /* Do not request DFS, even if available */ |
| bool local_lease:1; /* check leases only on local system, not remote */ |
| bool noblocksnd:1; |
| bool noautotune:1; |
| bool nostrictsync:1; /* do not force expensive SMBflush on every sync */ |
| bool no_lease:1; /* disable requesting leases */ |
| bool no_sparse:1; /* do not attempt to set files sparse */ |
| bool fsc:1; /* enable fscache */ |
| bool mfsymlinks:1; /* use Minshall+French Symlinks */ |
| bool multiuser:1; |
| bool rwpidforward:1; /* pid forward for read/write operations */ |
| bool nosharesock:1; |
| bool persistent:1; |
| bool nopersistent:1; |
| bool resilient:1; /* noresilient not required since not fored for CA */ |
| bool domainauto:1; |
| bool rdma:1; |
| bool multichannel:1; |
| bool use_client_guid:1; |
| /* reuse existing guid for multichannel */ |
| u8 client_guid[SMB2_CLIENT_GUID_SIZE]; |
| unsigned int bsize; |
| unsigned int rasize; |
| unsigned int rsize; |
| unsigned int wsize; |
| unsigned int min_offload; |
| unsigned int retrans; |
| bool sockopt_tcp_nodelay:1; |
| /* attribute cache timeout for files and directories in jiffies */ |
| unsigned long acregmax; |
| unsigned long acdirmax; |
| /* timeout for deferred close of files in jiffies */ |
| unsigned long closetimeo; |
| struct smb_version_operations *ops; |
| struct smb_version_values *vals; |
| char *prepath; |
| struct sockaddr_storage dstaddr; /* destination address */ |
| struct sockaddr_storage srcaddr; /* allow binding to a local IP */ |
| struct nls_table *local_nls; /* This is a copy of the pointer in cifs_sb */ |
| unsigned int echo_interval; /* echo interval in secs */ |
| __u64 snapshot_time; /* needed for timewarp tokens */ |
| __u32 handle_timeout; /* persistent and durable handle timeout in ms */ |
| unsigned int max_credits; /* smb3 max_credits 10 < credits < 60000 */ |
| unsigned int max_channels; |
| unsigned int max_cached_dirs; |
| bool compress; /* enable SMB2 messages (READ/WRITE) de/compression */ |
| bool rootfs:1; /* if it's a SMB root file system */ |
| bool witness:1; /* use witness protocol */ |
| char *leaf_fullpath; |
| struct cifs_ses *dfs_root_ses; |
| bool dfs_automount:1; /* set for dfs automount only */ |
| enum cifs_reparse_type reparse_type; |
| bool dfs_conn:1; /* set for dfs mounts */ |
| }; |
| |
| extern const struct fs_parameter_spec smb3_fs_parameters[]; |
| |
| extern int smb3_init_fs_context(struct fs_context *fc); |
| extern void smb3_cleanup_fs_context_contents(struct smb3_fs_context *ctx); |
| extern void smb3_cleanup_fs_context(struct smb3_fs_context *ctx); |
| |
| static inline struct smb3_fs_context *smb3_fc2context(const struct fs_context *fc) |
| { |
| return fc->fs_private; |
| } |
| |
| extern int smb3_fs_context_dup(struct smb3_fs_context *new_ctx, struct smb3_fs_context *ctx); |
| extern void smb3_update_mnt_flags(struct cifs_sb_info *cifs_sb); |
| |
| /* |
| * max deferred close timeout (jiffies) - 2^30 |
| */ |
| #define SMB3_MAX_DCLOSETIMEO (1 << 30) |
| #define SMB3_DEF_DCLOSETIMEO (1 * HZ) /* even 1 sec enough to help eg open/write/close/open/read */ |
| #define MAX_CACHED_FIDS 16 |
| extern char *cifs_sanitize_prepath(char *prepath, gfp_t gfp); |
| |
| extern struct mutex cifs_mount_mutex; |
| |
| static inline void cifs_mount_lock(void) |
| { |
| mutex_lock(&cifs_mount_mutex); |
| } |
| |
| static inline void cifs_mount_unlock(void) |
| { |
| mutex_unlock(&cifs_mount_mutex); |
| } |
| |
| #endif |
