1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright (c) 2009, 2010, Oracle and/or its affiliates. All rights reserved. 23 * Copyright 2017 Nexenta Systems, Inc. All rights reserved. 24 * Copyright 2017 Joyent, Inc. 25 * Copyright 2022 RackTop Systems, Inc. 26 */ 27 28 #include <sys/types.h> 29 #include <sys/stat.h> 30 #include <sys/ioccom.h> 31 #include <sys/param.h> 32 #include <stddef.h> 33 #include <stdio.h> 34 #include <string.h> 35 #include <strings.h> 36 #include <stdlib.h> 37 #include <unistd.h> 38 #include <fcntl.h> 39 #include <errno.h> 40 41 #include <smbsrv/smb_xdr.h> 42 #include <smbsrv/smbinfo.h> 43 #include <smbsrv/smb_ioctl.h> 44 #include <smbsrv/libsmb.h> 45 46 #define SMBDRV_DEVICE_PATH "/dev/smbsrv" 47 48 int smb_kmod_ioctl(int, smb_ioc_header_t *, uint32_t); 49 50 51 int smbdrv_fd = -1; 52 53 int 54 smb_kmod_bind(void) 55 { 56 if (smbdrv_fd != -1) 57 (void) close(smbdrv_fd); 58 59 if ((smbdrv_fd = open(SMBDRV_DEVICE_PATH, 0)) < 0) { 60 smbdrv_fd = -1; 61 return (errno); 62 } 63 64 return (0); 65 } 66 67 boolean_t 68 smb_kmod_isbound(void) 69 { 70 return ((smbdrv_fd == -1) ? B_FALSE : B_TRUE); 71 } 72 73 /* See also: smbsrv smb_server_store_cfg */ 74 int 75 smb_kmod_setcfg(smb_kmod_cfg_t *cfg) 76 { 77 smb_ioc_cfg_t ioc = {0}; 78 79 ioc.maxworkers = cfg->skc_maxworkers; 80 ioc.maxconnections = cfg->skc_maxconnections; 81 ioc.keepalive = cfg->skc_keepalive; 82 ioc.restrict_anon = cfg->skc_restrict_anon; 83 ioc.signing_enable = cfg->skc_signing_enable; 84 ioc.signing_required = cfg->skc_signing_required; 85 ioc.oplock_enable = cfg->skc_oplock_enable; 86 ioc.sync_enable = cfg->skc_sync_enable; 87 ioc.secmode = cfg->skc_secmode; 88 ioc.netbios_enable = cfg->skc_netbios_enable; 89 ioc.ipv6_enable = cfg->skc_ipv6_enable; 90 ioc.print_enable = cfg->skc_print_enable; 91 ioc.traverse_mounts = cfg->skc_traverse_mounts; 92 ioc.short_names = cfg->skc_short_names; 93 94 ioc.max_protocol = cfg->skc_max_protocol; 95 ioc.min_protocol = cfg->skc_min_protocol; 96 ioc.exec_flags = cfg->skc_execflags; 97 ioc.negtok_len = cfg->skc_negtok_len; 98 ioc.max_opens = cfg->skc_max_opens; 99 100 ioc.version = cfg->skc_version; 101 ioc.initial_credits = cfg->skc_initial_credits; 102 ioc.maximum_credits = cfg->skc_maximum_credits; 103 ioc.encrypt = cfg->skc_encrypt; 104 ioc.encrypt_ciphers = cfg->skc_encrypt_ciphers; 105 106 (void) memcpy(ioc.machine_uuid, cfg->skc_machine_uuid, sizeof (uuid_t)); 107 (void) memcpy(ioc.negtok, cfg->skc_negtok, sizeof (ioc.negtok)); 108 (void) memcpy(ioc.native_os, cfg->skc_native_os, 109 sizeof (ioc.native_os)); 110 (void) memcpy(ioc.native_lm, cfg->skc_native_lm, 111 sizeof (ioc.native_lm)); 112 113 (void) strlcpy(ioc.nbdomain, cfg->skc_nbdomain, sizeof (ioc.nbdomain)); 114 (void) strlcpy(ioc.fqdn, cfg->skc_fqdn, sizeof (ioc.fqdn)); 115 (void) strlcpy(ioc.hostname, cfg->skc_hostname, sizeof (ioc.hostname)); 116 (void) strlcpy(ioc.system_comment, cfg->skc_system_comment, 117 sizeof (ioc.system_comment)); 118 119 return (smb_kmod_ioctl(SMB_IOC_CONFIG, &ioc.hdr, sizeof (ioc))); 120 } 121 122 int 123 smb_kmod_setgmtoff(int32_t gmtoff) 124 { 125 smb_ioc_gmt_t ioc; 126 127 ioc.offset = gmtoff; 128 return (smb_kmod_ioctl(SMB_IOC_GMTOFF, &ioc.hdr, 129 sizeof (ioc))); 130 } 131 132 int 133 smb_kmod_start(int opipe, int lmshr, int udoor) 134 { 135 smb_ioc_start_t ioc; 136 137 ioc.opipe = opipe; 138 ioc.lmshrd = lmshr; 139 ioc.udoor = udoor; 140 return (smb_kmod_ioctl(SMB_IOC_START, &ioc.hdr, sizeof (ioc))); 141 } 142 143 void 144 smb_kmod_stop(void) 145 { 146 smb_ioc_header_t ioc; 147 148 (void) smb_kmod_ioctl(SMB_IOC_STOP, &ioc, sizeof (ioc)); 149 } 150 151 int 152 smb_kmod_event_notify(uint32_t txid) 153 { 154 smb_ioc_event_t ioc; 155 156 ioc.txid = txid; 157 return (smb_kmod_ioctl(SMB_IOC_EVENT, &ioc.hdr, sizeof (ioc))); 158 } 159 160 int 161 smb_kmod_share(nvlist_t *shrlist) 162 { 163 smb_ioc_share_t *ioc; 164 uint32_t ioclen; 165 char *shrbuf = NULL; 166 size_t bufsz; 167 int rc = ENOMEM; 168 169 if ((rc = nvlist_pack(shrlist, &shrbuf, &bufsz, NV_ENCODE_XDR, 0)) != 0) 170 return (rc); 171 172 ioclen = sizeof (smb_ioc_share_t) + bufsz; 173 174 if ((ioc = malloc(ioclen)) != NULL) { 175 ioc->shrlen = bufsz; 176 bcopy(shrbuf, ioc->shr, bufsz); 177 rc = smb_kmod_ioctl(SMB_IOC_SHARE, &ioc->hdr, ioclen); 178 free(ioc); 179 } 180 181 free(shrbuf); 182 return (rc); 183 } 184 185 int 186 smb_kmod_unshare(nvlist_t *shrlist) 187 { 188 smb_ioc_share_t *ioc; 189 uint32_t ioclen; 190 char *shrbuf = NULL; 191 size_t bufsz; 192 int rc = ENOMEM; 193 194 if ((rc = nvlist_pack(shrlist, &shrbuf, &bufsz, NV_ENCODE_XDR, 0)) != 0) 195 return (rc); 196 197 ioclen = sizeof (smb_ioc_share_t) + bufsz; 198 199 if ((ioc = malloc(ioclen)) != NULL) { 200 ioc->shrlen = bufsz; 201 bcopy(shrbuf, ioc->shr, bufsz); 202 rc = smb_kmod_ioctl(SMB_IOC_UNSHARE, &ioc->hdr, ioclen); 203 free(ioc); 204 } 205 206 free(shrbuf); 207 return (rc); 208 } 209 210 int 211 smb_kmod_shareinfo(char *shrname, boolean_t *shortnames) 212 { 213 smb_ioc_shareinfo_t ioc; 214 int rc; 215 216 bzero(&ioc, sizeof (ioc)); 217 (void) strlcpy(ioc.shrname, shrname, MAXNAMELEN); 218 219 rc = smb_kmod_ioctl(SMB_IOC_SHAREINFO, &ioc.hdr, sizeof (ioc)); 220 if (rc == 0) 221 *shortnames = ioc.shortnames; 222 else 223 *shortnames = B_TRUE; 224 225 return (rc); 226 } 227 228 int 229 smb_kmod_get_open_num(smb_opennum_t *opennum) 230 { 231 smb_ioc_opennum_t ioc; 232 int rc; 233 234 bzero(&ioc, sizeof (ioc)); 235 ioc.qualtype = opennum->qualtype; 236 (void) strlcpy(ioc.qualifier, opennum->qualifier, MAXNAMELEN); 237 238 rc = smb_kmod_ioctl(SMB_IOC_NUMOPEN, &ioc.hdr, sizeof (ioc)); 239 if (rc == 0) { 240 opennum->open_users = ioc.open_users; 241 opennum->open_trees = ioc.open_trees; 242 opennum->open_files = ioc.open_files; 243 } 244 245 return (rc); 246 } 247 248 int 249 smb_kmod_get_spool_doc(uint32_t *spool_num, char *username, 250 char *path, smb_inaddr_t *ipaddr) 251 { 252 smb_ioc_spooldoc_t ioc; 253 int rc; 254 255 bzero(&ioc, sizeof (ioc)); 256 rc = smb_kmod_ioctl(SMB_IOC_SPOOLDOC, &ioc.hdr, sizeof (ioc)); 257 if (rc == 0) { 258 *spool_num = ioc.spool_num; 259 (void) strlcpy(username, ioc.username, MAXNAMELEN); 260 (void) strlcpy(path, ioc.path, MAXPATHLEN); 261 *ipaddr = ioc.ipaddr; 262 } 263 return (rc); 264 } 265 266 /* 267 * Initialization for an smb_kmod_enum request. If this call succeeds, 268 * smb_kmod_enum_fini() must be called later to deallocate resources. 269 */ 270 smb_netsvc_t * 271 smb_kmod_enum_init(smb_svcenum_t *request) 272 { 273 smb_netsvc_t *ns; 274 smb_svcenum_t *svcenum; 275 smb_ioc_svcenum_t *ioc; 276 uint32_t ioclen; 277 278 if ((ns = calloc(1, sizeof (smb_netsvc_t))) == NULL) 279 return (NULL); 280 281 ioclen = sizeof (smb_ioc_svcenum_t) + SMB_IOC_DATA_SIZE; 282 if ((ioc = malloc(ioclen)) == NULL) { 283 free(ns); 284 return (NULL); 285 } 286 287 bzero(ioc, ioclen); 288 svcenum = &ioc->svcenum; 289 svcenum->se_type = request->se_type; 290 svcenum->se_level = request->se_level; 291 svcenum->se_bavail = SMB_IOC_DATA_SIZE; 292 svcenum->se_nlimit = request->se_nlimit; 293 svcenum->se_nskip = request->se_nskip; 294 svcenum->se_buflen = SMB_IOC_DATA_SIZE; 295 296 list_create(&ns->ns_list, sizeof (smb_netsvcitem_t), 297 offsetof(smb_netsvcitem_t, nsi_lnd)); 298 299 ns->ns_ioc = ioc; 300 ns->ns_ioclen = ioclen; 301 return (ns); 302 } 303 304 /* 305 * Cleanup resources allocated via smb_kmod_enum_init and smb_kmod_enum. 306 */ 307 void 308 smb_kmod_enum_fini(smb_netsvc_t *ns) 309 { 310 list_t *lst; 311 smb_netsvcitem_t *item; 312 smb_netuserinfo_t *user; 313 smb_netconnectinfo_t *tree; 314 smb_netfileinfo_t *ofile; 315 uint32_t se_type; 316 317 if (ns == NULL) 318 return; 319 320 lst = &ns->ns_list; 321 se_type = ns->ns_ioc->svcenum.se_type; 322 323 while ((item = list_head(lst)) != NULL) { 324 list_remove(lst, item); 325 326 switch (se_type) { 327 case SMB_SVCENUM_TYPE_USER: 328 user = &item->nsi_un.nsi_user; 329 free(user->ui_domain); 330 free(user->ui_account); 331 free(user->ui_workstation); 332 break; 333 case SMB_SVCENUM_TYPE_TREE: 334 tree = &item->nsi_un.nsi_tree; 335 free(tree->ci_username); 336 free(tree->ci_share); 337 break; 338 case SMB_SVCENUM_TYPE_FILE: 339 ofile = &item->nsi_un.nsi_ofile; 340 free(ofile->fi_path); 341 free(ofile->fi_username); 342 break; 343 default: 344 break; 345 } 346 } 347 348 list_destroy(&ns->ns_list); 349 free(ns->ns_items); 350 free(ns->ns_ioc); 351 free(ns); 352 } 353 354 /* 355 * Enumerate users, connections or files. 356 */ 357 int 358 smb_kmod_enum(smb_netsvc_t *ns) 359 { 360 smb_ioc_svcenum_t *ioc; 361 uint32_t ioclen; 362 smb_svcenum_t *svcenum; 363 smb_netsvcitem_t *items; 364 smb_netuserinfo_t *user; 365 smb_netconnectinfo_t *tree; 366 smb_netfileinfo_t *ofile; 367 uint8_t *data; 368 uint32_t len; 369 uint32_t se_type; 370 uint_t nbytes; 371 int i; 372 int rc; 373 374 ioc = ns->ns_ioc; 375 ioclen = ns->ns_ioclen; 376 rc = smb_kmod_ioctl(SMB_IOC_SVCENUM, &ioc->hdr, ioclen); 377 if (rc != 0) 378 return (rc); 379 380 svcenum = &ioc->svcenum; 381 items = calloc(svcenum->se_nitems, sizeof (smb_netsvcitem_t)); 382 if (items == NULL) 383 return (ENOMEM); 384 385 ns->ns_items = items; 386 se_type = ns->ns_ioc->svcenum.se_type; 387 data = svcenum->se_buf; 388 len = svcenum->se_bused; 389 390 for (i = 0; i < svcenum->se_nitems; ++i) { 391 switch (se_type) { 392 case SMB_SVCENUM_TYPE_USER: 393 user = &items->nsi_un.nsi_user; 394 rc = smb_netuserinfo_decode(user, data, len, &nbytes); 395 break; 396 case SMB_SVCENUM_TYPE_TREE: 397 tree = &items->nsi_un.nsi_tree; 398 rc = smb_netconnectinfo_decode(tree, data, len, 399 &nbytes); 400 break; 401 case SMB_SVCENUM_TYPE_FILE: 402 ofile = &items->nsi_un.nsi_ofile; 403 rc = smb_netfileinfo_decode(ofile, data, len, &nbytes); 404 break; 405 default: 406 rc = -1; 407 break; 408 } 409 410 if (rc != 0) 411 return (EINVAL); 412 413 list_insert_tail(&ns->ns_list, items); 414 415 ++items; 416 data += nbytes; 417 len -= nbytes; 418 } 419 420 return (0); 421 } 422 423 /* 424 * A NULL pointer is a wildcard indicator, which we pass on 425 * as an empty string (by virtue of the bzero). 426 */ 427 int 428 smb_kmod_session_close(const char *client, const char *username) 429 { 430 smb_ioc_session_t ioc; 431 int rc; 432 433 bzero(&ioc, sizeof (ioc)); 434 435 if (client != NULL) 436 (void) strlcpy(ioc.client, client, MAXNAMELEN); 437 if (username != NULL) 438 (void) strlcpy(ioc.username, username, MAXNAMELEN); 439 440 rc = smb_kmod_ioctl(SMB_IOC_SESSION_CLOSE, &ioc.hdr, sizeof (ioc)); 441 return (rc); 442 } 443 444 int 445 smb_kmod_file_close(uint32_t uniqid) 446 { 447 smb_ioc_fileid_t ioc; 448 int rc; 449 450 bzero(&ioc, sizeof (ioc)); 451 ioc.uniqid = uniqid; 452 453 rc = smb_kmod_ioctl(SMB_IOC_FILE_CLOSE, &ioc.hdr, sizeof (ioc)); 454 return (rc); 455 } 456 457 void 458 smb_kmod_unbind(void) 459 { 460 if (smbdrv_fd != -1) { 461 (void) close(smbdrv_fd); 462 smbdrv_fd = -1; 463 } 464 } 465 466 /* 467 * Note: The user-space smbd-d provides it own version of this function 468 * which directly calls the "kernel" module code (in user space). 469 */ 470 int 471 smb_kmod_ioctl(int cmd, smb_ioc_header_t *ioc, uint32_t len) 472 { 473 int rc = EINVAL; 474 475 ioc->version = SMB_IOC_VERSION; 476 ioc->cmd = cmd; 477 ioc->len = len; 478 ioc->crc = 0; 479 ioc->crc = smb_crc_gen((uint8_t *)ioc, sizeof (smb_ioc_header_t)); 480 481 if (smbdrv_fd != -1) { 482 if (ioctl(smbdrv_fd, cmd, ioc) < 0) 483 rc = errno; 484 else 485 rc = 0; 486 } 487 return (rc); 488 } 489