1 /*- 2 * Copyright (c) 2000-2001 Boris Popov 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD$ 27 */ 28 29 /* 30 * Two levels of connection hierarchy 31 */ 32 #define SMBL_SM 0 33 #define SMBL_VC 1 34 #define SMBL_SHARE 2 35 #define SMBL_NUM 3 36 #define SMBL_NONE (-1) 37 38 #define SMB_CS_NONE 0x0000 39 #define SMB_CS_UPPER 0x0001 /* convert passed string to upper case */ 40 #define SMB_CS_LOWER 0x0002 /* convert passed string to lower case */ 41 42 /* 43 * Common object flags 44 */ 45 #define SMBO_GONE 0x1000000 46 47 /* 48 * access modes 49 */ 50 #define SMBM_READ 0400 /* read conn attrs.(like list shares) */ 51 #define SMBM_WRITE 0200 /* modify conn attrs */ 52 #define SMBM_EXEC 0100 /* can send SMB requests */ 53 #define SMBM_READGRP 0040 54 #define SMBM_WRITEGRP 0020 55 #define SMBM_EXECGRP 0010 56 #define SMBM_READOTH 0004 57 #define SMBM_WRITEOTH 0002 58 #define SMBM_EXECOTH 0001 59 #define SMBM_MASK 0777 60 #define SMBM_EXACT 010000 /* check for specified mode exactly */ 61 #define SMBM_ALL (SMBM_READ | SMBM_WRITE | SMBM_EXEC) 62 #define SMBM_DEFAULT (SMBM_READ | SMBM_WRITE | SMBM_EXEC) 63 #define SMBM_ANY_OWNER ((uid_t)-1) 64 #define SMBM_ANY_GROUP ((gid_t)-1) 65 66 /* 67 * VC flags 68 */ 69 #define SMBV_PERMANENT 0x0002 70 #define SMBV_LONGNAMES 0x0004 /* connection is configured to use long names */ 71 #define SMBV_ENCRYPT 0x0008 /* server asked for encrypted password */ 72 #define SMBV_WIN95 0x0010 /* used to apply bugfixes for this OS */ 73 #define SMBV_PRIVATE 0x0020 /* connection can be used only by creator */ 74 #define SMBV_RECONNECTING 0x0040 /* conn is in the process of reconnection */ 75 #define SMBV_SINGLESHARE 0x0080 /* only one share connecting should be allowed */ 76 #define SMBV_CREATE 0x0100 /* lookup for create operation */ 77 /*#define SMBV_FAILED 0x0200*/ /* last reconnect attempt has failed */ 78 #define SMBV_UNICODE 0x0400 /* connection is configured to use Unicode */ 79 80 81 /* 82 * smb_share flags 83 */ 84 #define SMBS_PERMANENT 0x0001 85 #define SMBS_RECONNECTING 0x0002 86 #define SMBS_CONNECTED 0x0004 87 88 /* 89 * share types 90 */ 91 #define SMB_ST_DISK 0x0 /* A: */ 92 #define SMB_ST_PRINTER 0x1 /* LPT: */ 93 #define SMB_ST_PIPE 0x2 /* IPC */ 94 #define SMB_ST_COMM 0x3 /* COMM */ 95 #define SMB_ST_ANY 0x4 96 #define SMB_ST_MAX 0x4 97 #define SMB_ST_NONE 0xff /* not a part of protocol */ 98 99 /* 100 * Negotiated protocol parameters 101 */ 102 struct smb_sopt { 103 int sv_proto; 104 int16_t sv_tz; /* offset in min relative to UTC */ 105 u_int32_t sv_maxtx; /* maximum transmit buf size */ 106 u_char sv_sm; /* security mode */ 107 u_int16_t sv_maxmux; /* max number of outstanding rq's */ 108 u_int16_t sv_maxvcs; /* max number of VCs */ 109 u_int16_t sv_rawmode; 110 u_int32_t sv_maxraw; /* maximum raw-buffer size */ 111 u_int32_t sv_skey; /* session key */ 112 u_int32_t sv_caps; /* capabilities SMB_CAP_ */ 113 }; 114 115 /* 116 * network IO daemon states 117 */ 118 enum smbiod_state { 119 SMBIOD_ST_NOTCONN, /* no connect request was made */ 120 SMBIOD_ST_RECONNECT, /* a [re]connect attempt is in progress */ 121 SMBIOD_ST_TRANACTIVE, /* transport level is up */ 122 SMBIOD_ST_VCACTIVE, /* session established */ 123 SMBIOD_ST_DEAD /* connection broken, transport is down */ 124 }; 125 126 127 /* 128 * Info structures 129 */ 130 #define SMB_INFO_NONE 0 131 #define SMB_INFO_VC 2 132 #define SMB_INFO_SHARE 3 133 134 struct smb_vc_info { 135 int itype; 136 int usecount; 137 uid_t uid; /* user id of connection */ 138 gid_t gid; /* group of connection */ 139 mode_t mode; /* access mode */ 140 int flags; 141 enum smbiod_state iodstate; 142 struct smb_sopt sopt; 143 char srvname[SMB_MAXSRVNAMELEN + 1]; 144 char vcname[128]; 145 }; 146 147 struct smb_share_info { 148 int itype; 149 int usecount; 150 u_short tid; /* TID */ 151 int type; /* share type */ 152 uid_t uid; /* user id of connection */ 153 gid_t gid; /* group of connection */ 154 mode_t mode; /* access mode */ 155 int flags; 156 char sname[128]; 157 }; 158 159 #ifdef _KERNEL 160 161 #include <sys/lock.h> 162 #include <sys/lockmgr.h> 163 #include <netsmb/smb_subr.h> 164 165 #define CONNADDREQ(a1,a2) ((a1)->sa_len == (a2)->sa_len && \ 166 bcmp(a1, a2, (a1)->sa_len) == 0) 167 168 struct smb_vc; 169 struct smb_share; 170 struct smb_cred; 171 struct smb_rq; 172 struct mbdata; 173 struct smbioc_oshare; 174 struct smbioc_ossn; 175 struct uio; 176 177 TAILQ_HEAD(smb_rqhead, smb_rq); 178 179 #define SMB_DEFRQTIMO 5 180 181 #define SMB_DIALECT(vcp) ((vcp)->vc_sopt.sv_proto) 182 183 struct smb_tran_desc; 184 185 /* 186 * Connection object 187 */ 188 struct smb_connobj; 189 190 typedef void smb_co_gone_t (struct smb_connobj *cp, struct smb_cred *scred); 191 typedef void smb_co_free_t (struct smb_connobj *cp); 192 193 #define SMB_CO_LOCK(cp) smb_sl_lock(&(cp)->co_interlock) 194 #define SMB_CO_UNLOCK(cp) smb_sl_unlock(&(cp)->co_interlock) 195 196 struct smb_connobj { 197 int co_level; /* SMBL_ */ 198 int co_flags; 199 struct lock co_lock; 200 struct smb_slock co_interlock; 201 int co_usecount; 202 struct smb_connobj * co_parent; 203 SLIST_HEAD(,smb_connobj)co_children; 204 SLIST_ENTRY(smb_connobj)co_next; 205 smb_co_gone_t * co_gone; 206 smb_co_free_t * co_free; 207 }; 208 209 #define SMBCO_FOREACH(var, cp) SLIST_FOREACH((var), &(cp)->co_children, co_next) 210 211 /* 212 * Virtual Circuit (session) to a server. 213 * This is the most (over)complicated part of SMB protocol. 214 * For the user security level (usl), each session with different remote 215 * user name has its own VC. 216 * It is unclear however, should share security level (ssl) allow additional 217 * VCs, because user name is not used and can be the same. On other hand, 218 * multiple VCs allows us to create separate sessions to server on a per 219 * user basis. 220 */ 221 222 /* 223 * This lock protects vc_flags 224 */ 225 #define SMBC_ST_LOCK(vcp) smb_sl_lock(&(vcp)->vc_stlock) 226 #define SMBC_ST_UNLOCK(vcp) smb_sl_unlock(&(vcp)->vc_stlock) 227 228 229 struct smb_vc { 230 struct smb_connobj obj; 231 char * vc_srvname; 232 struct sockaddr*vc_paddr; /* server addr */ 233 struct sockaddr*vc_laddr; /* local addr, if any */ 234 char * vc_username; 235 char * vc_pass; /* password for usl case */ 236 char * vc_domain; /* workgroup/primary domain */ 237 238 u_int vc_timo; /* default request timeout */ 239 int vc_maxvcs; /* maximum number of VC per connection */ 240 241 void * vc_tolower; /* local charset */ 242 void * vc_toupper; /* local charset */ 243 void * vc_toserver; /* local charset to server one */ 244 void * vc_tolocal; /* server charset to local one */ 245 int vc_number; /* number of this VC from the client side */ 246 int vc_genid; 247 uid_t vc_uid; /* user id of connection */ 248 gid_t vc_grp; /* group of connection */ 249 mode_t vc_mode; /* access mode */ 250 u_short vc_smbuid; /* unique vc id assigned by server */ 251 252 u_char vc_hflags; /* or'ed with flags in the smb header */ 253 u_short vc_hflags2; /* or'ed with flags in the smb header */ 254 void * vc_tdata; /* transport control block */ 255 struct smb_tran_desc *vc_tdesc; 256 int vc_chlen; /* actual challenge length */ 257 u_char vc_ch[SMB_MAXCHALLENGELEN]; 258 u_short vc_mid; /* multiplex id */ 259 struct smb_sopt vc_sopt; /* server options */ 260 int vc_txmax; /* max tx/rx packet size */ 261 int vc_rxmax; /* max readx data size */ 262 int vc_wxmax; /* max writex data size */ 263 struct smbiod * vc_iod; 264 struct smb_slock vc_stlock; 265 u_int32_t vc_seqno; /* my next sequence number */ 266 u_int8_t *vc_mackey; /* MAC key */ 267 int vc_mackeylen; /* length of MAC key */ 268 }; 269 270 #define vc_maxmux vc_sopt.sv_maxmux 271 #define vc_flags obj.co_flags 272 273 #define SMB_UNICODE_STRINGS(vcp) ((vcp)->vc_hflags2 & SMB_FLAGS2_UNICODE) 274 275 /* 276 * smb_share structure describes connection to the given SMB share (tree). 277 * Connection to share is always built on top of the VC. 278 */ 279 280 /* 281 * This lock protects ss_flags 282 */ 283 #define SMBS_ST_LOCK(ssp) smb_sl_lock(&(ssp)->ss_stlock) 284 #define SMBS_ST_LOCKPTR(ssp) (&(ssp)->ss_stlock) 285 #define SMBS_ST_UNLOCK(ssp) smb_sl_unlock(&(ssp)->ss_stlock) 286 287 struct smb_share { 288 struct smb_connobj obj; 289 char * ss_name; 290 u_short ss_tid; /* TID */ 291 int ss_type; /* share type */ 292 uid_t ss_uid; /* user id of connection */ 293 gid_t ss_grp; /* group of connection */ 294 mode_t ss_mode; /* access mode */ 295 int ss_vcgenid; 296 char * ss_pass; /* password to a share, can be null */ 297 struct smb_slock ss_stlock; 298 }; 299 300 #define ss_flags obj.co_flags 301 302 #define CPTOVC(cp) ((struct smb_vc*)(cp)) 303 #define VCTOCP(vcp) (&(vcp)->obj) 304 #define CPTOSS(cp) ((struct smb_share*)(cp)) 305 #define SSTOVC(ssp) CPTOVC(((ssp)->obj.co_parent)) 306 #define SSTOCP(ssp) (&(ssp)->obj) 307 308 struct smb_vcspec { 309 char * srvname; 310 struct sockaddr*sap; 311 struct sockaddr*lap; 312 int flags; 313 char * username; 314 char * pass; 315 char * domain; 316 mode_t mode; 317 mode_t rights; 318 uid_t owner; 319 gid_t group; 320 char * localcs; 321 char * servercs; 322 struct smb_sharespec *shspec; 323 struct smb_share *ssp; /* returned */ 324 /* 325 * The rest is an internal data 326 */ 327 struct smb_cred *scred; 328 }; 329 330 struct smb_sharespec { 331 char * name; 332 char * pass; 333 mode_t mode; 334 mode_t rights; 335 uid_t owner; 336 gid_t group; 337 int stype; 338 /* 339 * The rest is an internal data 340 */ 341 struct smb_cred *scred; 342 }; 343 344 /* 345 * Session level functions 346 */ 347 int smb_sm_init(void); 348 int smb_sm_done(void); 349 int smb_sm_lookup(struct smb_vcspec *vcspec, 350 struct smb_sharespec *shspec, struct smb_cred *scred, 351 struct smb_vc **vcpp); 352 353 /* 354 * Connection object 355 */ 356 void smb_co_ref(struct smb_connobj *cp); 357 void smb_co_rele(struct smb_connobj *cp, struct smb_cred *scred); 358 int smb_co_get(struct smb_connobj *cp, int flags, struct smb_cred *scred); 359 void smb_co_put(struct smb_connobj *cp, struct smb_cred *scred); 360 int smb_co_lock(struct smb_connobj *cp, int flags); 361 void smb_co_unlock(struct smb_connobj *cp, int flags); 362 363 /* 364 * session level functions 365 */ 366 int smb_vc_create(struct smb_vcspec *vcspec, 367 struct smb_cred *scred, struct smb_vc **vcpp); 368 int smb_vc_connect(struct smb_vc *vcp, struct smb_cred *scred); 369 int smb_vc_access(struct smb_vc *vcp, struct smb_cred *scred, mode_t mode); 370 int smb_vc_get(struct smb_vc *vcp, int flags, struct smb_cred *scred); 371 void smb_vc_put(struct smb_vc *vcp, struct smb_cred *scred); 372 void smb_vc_ref(struct smb_vc *vcp); 373 void smb_vc_rele(struct smb_vc *vcp, struct smb_cred *scred); 374 int smb_vc_lock(struct smb_vc *vcp, int flags); 375 void smb_vc_unlock(struct smb_vc *vcp, int flags); 376 int smb_vc_lookupshare(struct smb_vc *vcp, struct smb_sharespec *shspec, 377 struct smb_cred *scred, struct smb_share **sspp); 378 const char * smb_vc_getpass(struct smb_vc *vcp); 379 u_short smb_vc_nextmid(struct smb_vc *vcp); 380 381 /* 382 * share level functions 383 */ 384 int smb_share_create(struct smb_vc *vcp, struct smb_sharespec *shspec, 385 struct smb_cred *scred, struct smb_share **sspp); 386 int smb_share_access(struct smb_share *ssp, struct smb_cred *scred, mode_t mode); 387 void smb_share_ref(struct smb_share *ssp); 388 void smb_share_rele(struct smb_share *ssp, struct smb_cred *scred); 389 int smb_share_get(struct smb_share *ssp, int flags, struct smb_cred *scred); 390 void smb_share_put(struct smb_share *ssp, struct smb_cred *scred); 391 int smb_share_lock(struct smb_share *ssp, int flags); 392 void smb_share_unlock(struct smb_share *ssp, int flags); 393 void smb_share_invalidate(struct smb_share *ssp); 394 int smb_share_valid(struct smb_share *ssp); 395 const char * smb_share_getpass(struct smb_share *ssp); 396 397 /* 398 * SMB protocol level functions 399 */ 400 int smb_smb_negotiate(struct smb_vc *vcp, struct smb_cred *scred); 401 int smb_smb_ssnsetup(struct smb_vc *vcp, struct smb_cred *scred); 402 int smb_smb_ssnclose(struct smb_vc *vcp, struct smb_cred *scred); 403 int smb_smb_treeconnect(struct smb_share *ssp, struct smb_cred *scred); 404 int smb_smb_treedisconnect(struct smb_share *ssp, struct smb_cred *scred); 405 int smb_read(struct smb_share *ssp, u_int16_t fid, struct uio *uio, 406 struct smb_cred *scred); 407 int smb_write(struct smb_share *ssp, u_int16_t fid, struct uio *uio, 408 struct smb_cred *scred); 409 int smb_smb_echo(struct smb_vc *vcp, struct smb_cred *scred); 410 411 /* 412 * smbiod thread 413 */ 414 415 #define SMBIOD_EV_NEWRQ 0x0001 416 #define SMBIOD_EV_SHUTDOWN 0x0002 417 #define SMBIOD_EV_CONNECT 0x0003 418 #define SMBIOD_EV_DISCONNECT 0x0004 419 #define SMBIOD_EV_TREECONNECT 0x0005 420 #define SMBIOD_EV_MASK 0x00ff 421 #define SMBIOD_EV_SYNC 0x0100 422 #define SMBIOD_EV_PROCESSING 0x0200 423 424 struct smbiod_event { 425 int ev_type; 426 int ev_error; 427 void * ev_ident; 428 STAILQ_ENTRY(smbiod_event) ev_link; 429 }; 430 431 #define SMBIOD_SHUTDOWN 0x0001 432 433 struct smbiod { 434 int iod_id; 435 int iod_flags; 436 enum smbiod_state iod_state; 437 int iod_muxcnt; /* number of active outstanding requests */ 438 int iod_sleeptimo; 439 struct smb_vc * iod_vc; 440 struct smb_slock iod_rqlock; /* iod_rqlist, iod_muxwant */ 441 struct smb_rqhead iod_rqlist; /* list of outstanding requests */ 442 int iod_muxwant; 443 struct proc * iod_p; 444 struct thread * iod_td; 445 struct smb_cred iod_scred; 446 struct smb_slock iod_evlock; /* iod_evlist */ 447 STAILQ_HEAD(,smbiod_event) iod_evlist; 448 struct timespec iod_lastrqsent; 449 struct timespec iod_pingtimo; 450 }; 451 452 int smb_iod_init(void); 453 int smb_iod_done(void); 454 int smb_iod_create(struct smb_vc *vcp); 455 int smb_iod_destroy(struct smbiod *iod); 456 int smb_iod_request(struct smbiod *iod, int event, void *ident); 457 int smb_iod_addrq(struct smb_rq *rqp); 458 int smb_iod_waitrq(struct smb_rq *rqp); 459 int smb_iod_removerq(struct smb_rq *rqp); 460 461 #endif /* _KERNEL */ 462