diff options
Diffstat (limited to 'fs/smb/client/fs_context.h')
| -rw-r--r-- | fs/smb/client/fs_context.h | 296 |
1 files changed, 296 insertions, 0 deletions
diff --git a/fs/smb/client/fs_context.h b/fs/smb/client/fs_context.h new file mode 100644 index 0000000000..cf46916286 --- /dev/null +++ b/fs/smb/client/fs_context.h @@ -0,0 +1,296 @@ +/* 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_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_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_ip, + Opt_domain, + Opt_srcaddr, + Opt_iocharset, + Opt_netbiosname, + Opt_servern, + Opt_ver, + Opt_vers, + Opt_sec, + Opt_cache, + + /* Mount options to be ignored */ + Opt_ignore, + + Opt_err +}; + +struct smb3_fs_context { + 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 *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; + bool sockopt_tcp_nodelay:1; + /* attribute cache timemout 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; + __u16 compression; /* compression algorithm 0xFFFF default 0=disabled */ + 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 */ +}; + +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); + +#endif |