Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/fs/nwfs/nwfs_subr.c
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1 /*- 2 * Copyright (c) 1999, 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 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by Boris Popov. 16 * 4. Neither the name of the author nor the names of any co-contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30 * SUCH DAMAGE. 31 * 32 * $FreeBSD$ 33 */ 34 #include <sys/param.h> 35 #include <sys/systm.h> 36 #include <sys/kernel.h> 37 #include <sys/clock.h> 38 #include <sys/lockmgr.h> 39 #include <sys/malloc.h> 40 #include <sys/clock.h> 41 #include <sys/time.h> 42 43 #include <netncp/ncp.h> 44 #include <netncp/ncp_conn.h> 45 #include <netncp/ncp_ncp.h> 46 #include <netncp/ncp_subr.h> 47 #include <netncp/ncp_rq.h> 48 #include <netncp/nwerror.h> 49 50 #include <fs/nwfs/nwfs.h> 51 #include <fs/nwfs/nwfs_node.h> 52 #include <fs/nwfs/nwfs_subr.h> 53 54 #define NCP_INFOSZ (sizeof(struct nw_entry_info) - 257) 55 56 MALLOC_DEFINE(M_NWFSDATA, "nwfs_data", "NWFS private data"); 57 58 static int 59 ncp_extract_file_info(struct nwmount *nmp, struct ncp_rq *rqp, 60 struct nw_entry_info *target, int withname) 61 { 62 u_int8_t name_len; 63 64 md_get_mem(&rqp->rp, (caddr_t)target, NCP_INFOSZ, MB_MSYSTEM); 65 if (!withname) 66 return 0; 67 md_get_uint8(&rqp->rp, &name_len); 68 target->nameLen = name_len; 69 md_get_mem(&rqp->rp, (caddr_t)target->entryName, name_len, MB_MSYSTEM); 70 target->entryName[name_len] = '\0'; 71 ncp_path2unix(target->entryName, target->entryName, name_len, &nmp->m.nls); 72 return 0; 73 } 74 75 int 76 ncp_initsearch(struct vnode *dvp, struct thread *td, struct ucred *cred) 77 { 78 struct nwmount *nmp = VTONWFS(dvp); 79 struct ncp_conn *conn = NWFSTOCONN(nmp); 80 struct nwnode *np = VTONW(dvp); 81 struct ncp_rq *rqp; 82 u_int8_t volnum = nmp->n_volume; 83 u_int32_t dirent = np->n_fid.f_id; 84 int error; 85 86 NCPNDEBUG("vol=%d,dir=%d\n", volnum, dirent); 87 error = ncp_rq_alloc(87, conn, td, cred, &rqp); 88 if (error) 89 return error; 90 mb_put_uint8(&rqp->rq, 2); /* subfunction */ 91 mb_put_uint8(&rqp->rq, nmp->name_space); 92 mb_put_uint8(&rqp->rq, 0); /* reserved */ 93 ncp_rq_dbase_path(rqp, volnum, dirent, 0, NULL, NULL); 94 rqp->nr_minrplen = sizeof(np->n_seq); 95 error = ncp_request(rqp); 96 if (error) 97 return error; 98 md_get_mem(&rqp->rp, (caddr_t)&np->n_seq, sizeof(np->n_seq), MB_MSYSTEM); 99 ncp_rq_done(rqp); 100 return 0; 101 } 102 103 int 104 ncp_search_for_file_or_subdir(struct nwmount *nmp, 105 struct nw_search_seq *seq, 106 struct nw_entry_info *target, 107 struct thread *td,struct ucred *cred) 108 { 109 struct ncp_conn *conn = NWFSTOCONN(nmp); 110 struct ncp_rq *rqp; 111 int error; 112 113 error = ncp_rq_alloc(87, conn, td, cred, &rqp); 114 if (error) 115 return error; 116 mb_put_uint8(&rqp->rq, 3); /* subfunction */ 117 mb_put_uint8(&rqp->rq, nmp->name_space); 118 mb_put_uint8(&rqp->rq, 0); /* data stream */ 119 mb_put_uint16le(&rqp->rq, 0xffff); /* Search attribs */ 120 mb_put_uint32le(&rqp->rq, IM_ALL); /* return info mask */ 121 mb_put_mem(&rqp->rq, (caddr_t)seq, 9, MB_MSYSTEM); 122 mb_put_uint8(&rqp->rq, 2); /* 2 byte pattern */ 123 mb_put_uint8(&rqp->rq, 0xff); /* following is a wildcard */ 124 mb_put_uint8(&rqp->rq, '*'); 125 rqp->nr_minrplen = sizeof(*seq) + 1 + NCP_INFOSZ + 1; 126 error = ncp_request(rqp); 127 if (error) 128 return error; 129 md_get_mem(&rqp->rp, (caddr_t)seq, sizeof(*seq), MB_MSYSTEM); 130 md_get_uint8(&rqp->rp, NULL); /* skip */ 131 error = ncp_extract_file_info(nmp, rqp, target, 1); 132 ncp_rq_done(rqp); 133 return error; 134 } 135 136 /* 137 * Returns information for a (one-component) name relative to the specified 138 * directory. 139 */ 140 int 141 ncp_obtain_info(struct nwmount *nmp, u_int32_t dirent, 142 int namelen, char *path, struct nw_entry_info *target, 143 struct thread *td,struct ucred *cred) 144 { 145 struct ncp_conn *conn=NWFSTOCONN(nmp); 146 struct ncp_rq *rqp; 147 int error; 148 u_char volnum = nmp->n_volume, ns; 149 150 if (target == NULL) { 151 NCPFATAL("target == NULL\n"); 152 return EINVAL; 153 } 154 ns = (path == NULL || path[0] == 0) ? NW_NS_DOS : nmp->name_space; 155 error = ncp_rq_alloc(87, conn, td, cred, &rqp); 156 if (error) 157 return error; 158 mb_put_uint8(&rqp->rq, 6); /* subfunction */ 159 mb_put_uint8(&rqp->rq, ns); 160 mb_put_uint8(&rqp->rq, ns); /* DestNameSpace */ 161 mb_put_uint16le(&rqp->rq, 0xff); /* get all */ 162 mb_put_uint32le(&rqp->rq, IM_ALL); 163 ncp_rq_dbase_path(rqp, volnum, dirent, namelen, path, &nmp->m.nls); 164 error = ncp_request(rqp); 165 if (error) 166 return error; 167 error = ncp_extract_file_info(nmp, rqp, target, path != NULL); 168 ncp_rq_done(rqp); 169 return error; 170 } 171 /* 172 * lookup name pointed by cnp in directory dvp and return file info in np. 173 * May be I should create a little cache, but another way is to minimize 174 * number of calls, on other hand, in multiprocess environment ... 175 */ 176 int 177 ncp_lookup(struct vnode *dvp, int len, char *name, struct nw_entry_info *fap, 178 struct thread *td,struct ucred *cred) 179 { 180 struct nwmount *nmp; 181 struct nwnode *dnp; 182 struct ncp_conn *conn; 183 int error; 184 185 if (!dvp || dvp->v_type != VDIR) { 186 nwfs_printf("dvp is NULL or not a directory.\n"); 187 return (ENOENT); 188 } 189 dnp = VTONW(dvp); 190 nmp = VTONWFS(dvp); 191 conn = NWFSTOCONN(nmp); 192 193 if (len == 1 && name[0] == '.') { 194 if (dnp->n_flag & NVOLUME) { 195 error = ncp_obtain_info(nmp, dnp->n_fid.f_id, 0, NULL, 196 fap, td, cred); 197 } else { 198 error = ncp_obtain_info(nmp, dnp->n_fid.f_parent, 199 dnp->n_nmlen, dnp->n_name, fap, td, cred); 200 } 201 return error; 202 } else if (len == 2 && name[0] == '.' && name[1] == '.') { 203 printf("%s: knows NOTHING about '..'\n", __func__); 204 return EIO; 205 } else { 206 error = ncp_obtain_info(nmp, dnp->n_fid.f_id, 207 len, name, fap, td, cred); 208 } 209 return error; 210 } 211 212 static void ConvertToNWfromDWORD(u_int32_t sfd, ncp_fh *fh); 213 static void 214 ConvertToNWfromDWORD(u_int32_t sfd, ncp_fh *fh) { 215 fh->val1 = (fh->val.val32 = sfd); 216 return; 217 } 218 219 /* 220 * If both dir and name are NULL, then in target there's already a looked-up 221 * entry that wants to be opened. 222 */ 223 int 224 ncp_open_create_file_or_subdir(struct nwmount *nmp,struct vnode *dvp,int namelen, 225 char *name, int open_create_mode, u_int32_t create_attributes, 226 int desired_acc_rights, struct ncp_open_info *nop, 227 struct thread *td,struct ucred *cred) 228 { 229 230 struct ncp_conn *conn=NWFSTOCONN(nmp); 231 struct ncp_rq *rqp; 232 u_int16_t search_attribs = SA_ALL & (~SA_SUBDIR_FILES); 233 u_int8_t volnum; 234 u_int32_t dirent; 235 int error; 236 237 error = ncp_rq_alloc(87, conn, td, cred, &rqp); 238 if (error) 239 return error; 240 volnum = nmp->n_volume; 241 dirent = VTONW(dvp)->n_fid.f_id; 242 if ((create_attributes & aDIR) != 0) { 243 search_attribs |= SA_SUBDIR_FILES; 244 } 245 mb_put_uint8(&rqp->rq, 1);/* subfunction */ 246 mb_put_uint8(&rqp->rq, nmp->name_space); 247 mb_put_uint8(&rqp->rq, open_create_mode); 248 mb_put_uint16le(&rqp->rq, search_attribs); 249 mb_put_uint32le(&rqp->rq, IM_ALL); 250 mb_put_uint32le(&rqp->rq, create_attributes); 251 /* 252 * The desired acc rights seem to be the inherited rights mask for 253 * directories 254 */ 255 mb_put_uint16le(&rqp->rq, desired_acc_rights); 256 ncp_rq_dbase_path(rqp, volnum, dirent, namelen, name, &nmp->m.nls); 257 error = ncp_request(rqp); 258 if (error) { 259 if (error == NWE_FILE_NO_CREATE_PRIV) 260 error = EACCES; 261 return error; 262 } 263 md_get_uint32le(&rqp->rp, &nop->origfh); 264 md_get_uint8(&rqp->rp, &nop->action); 265 md_get_uint8(&rqp->rp, NULL); /* skip */ 266 error = ncp_extract_file_info(nmp, rqp, &nop->fattr, 1); 267 ncp_rq_done(rqp); 268 ConvertToNWfromDWORD(nop->origfh, &nop->fh); 269 return error; 270 } 271 272 int 273 ncp_close_file(struct ncp_conn *conn, ncp_fh *fh,struct thread *td,struct ucred *cred) 274 { 275 struct ncp_rq *rqp; 276 int error; 277 278 error = ncp_rq_alloc(66, conn, td, cred, &rqp); 279 if (error) 280 return error; 281 mb_put_uint8(&rqp->rq, 0); 282 mb_put_mem(&rqp->rq, (caddr_t)fh, 6, MB_MSYSTEM); 283 error = ncp_request(rqp); 284 if (error) 285 return error; 286 ncp_rq_done(rqp); 287 return error; 288 } 289 290 int 291 ncp_DeleteNSEntry(struct nwmount *nmp, u_int32_t dirent, 292 int namelen,char *name,struct thread *td,struct ucred *cred) 293 { 294 struct ncp_rq *rqp; 295 int error; 296 struct ncp_conn *conn=NWFSTOCONN(nmp); 297 298 error = ncp_rq_alloc(87, conn, td, cred, &rqp); 299 if (error) 300 return error; 301 mb_put_uint8(&rqp->rq, 8); /* subfunction */ 302 mb_put_uint8(&rqp->rq, nmp->name_space); 303 mb_put_uint8(&rqp->rq, 0); /* reserved */ 304 mb_put_uint16le(&rqp->rq, SA_ALL); /* search attribs: all */ 305 ncp_rq_dbase_path(rqp, nmp->n_volume, dirent, namelen, name, &nmp->m.nls); 306 error = ncp_request(rqp); 307 if (!error) 308 ncp_rq_done(rqp); 309 return error; 310 } 311 312 int 313 ncp_nsrename(struct ncp_conn *conn, int volume, int ns, int oldtype, 314 struct ncp_nlstables *nt, 315 nwdirent fdir, char *old_name, int oldlen, 316 nwdirent tdir, char *new_name, int newlen, 317 struct thread *td, struct ucred *cred) 318 { 319 struct ncp_rq *rqp; 320 int error; 321 322 error = ncp_rq_alloc(87, conn, td, cred, &rqp); 323 if (error) 324 return error; 325 mb_put_uint8(&rqp->rq, 4); 326 mb_put_uint8(&rqp->rq, ns); 327 mb_put_uint8(&rqp->rq, 1); /* RRenameToMySelf */ 328 mb_put_uint16le(&rqp->rq, oldtype); 329 /* source Handle Path */ 330 mb_put_uint8(&rqp->rq, volume); 331 mb_put_mem(&rqp->rq, (c_caddr_t)&fdir, sizeof(fdir), MB_MSYSTEM); 332 mb_put_uint8(&rqp->rq, 1); 333 mb_put_uint8(&rqp->rq, 1); /* 1 source component */ 334 /* dest Handle Path */ 335 mb_put_uint8(&rqp->rq, volume); 336 mb_put_mem(&rqp->rq, (c_caddr_t)&tdir, sizeof(tdir), MB_MSYSTEM); 337 mb_put_uint8(&rqp->rq, 1); 338 mb_put_uint8(&rqp->rq, 1); /* 1 destination component */ 339 ncp_rq_pathstring(rqp, oldlen, old_name, nt); 340 ncp_rq_pathstring(rqp, newlen, new_name, nt); 341 error = ncp_request(rqp); 342 if (!error) 343 ncp_rq_done(rqp); 344 return error; 345 } 346 347 int 348 ncp_modify_file_or_subdir_dos_info(struct nwmount *nmp, struct vnode *vp, 349 u_int32_t info_mask, 350 struct nw_modify_dos_info *info, 351 struct thread *td,struct ucred *cred) 352 { 353 struct nwnode *np=VTONW(vp); 354 struct ncp_rq *rqp; 355 u_int8_t volnum = nmp->n_volume; 356 u_int32_t dirent = np->n_fid.f_id; 357 struct ncp_conn *conn=NWFSTOCONN(nmp); 358 int error; 359 360 error = ncp_rq_alloc(87, conn, td, cred, &rqp); 361 if (error) 362 return error; 363 mb_put_uint8(&rqp->rq, 7); /* subfunction */ 364 mb_put_uint8(&rqp->rq, nmp->name_space); 365 mb_put_uint8(&rqp->rq, 0); /* reserved */ 366 mb_put_uint16le(&rqp->rq, SA_ALL); /* search attribs: all */ 367 mb_put_uint32le(&rqp->rq, info_mask); 368 mb_put_mem(&rqp->rq, (caddr_t)info, sizeof(*info), MB_MSYSTEM); 369 ncp_rq_dbase_path(rqp, volnum, dirent, 0, NULL, NULL); 370 error = ncp_request(rqp); 371 if (!error) 372 ncp_rq_done(rqp); 373 return error; 374 } 375 376 int 377 ncp_setattr(vp, vap, cred, td) 378 struct vnode *vp; 379 struct vattr *vap; 380 struct ucred *cred; 381 struct thread *td; 382 { 383 struct nwmount *nmp=VTONWFS(vp); 384 struct nwnode *np=VTONW(vp); 385 struct ncp_open_info nwn; 386 struct ncp_conn *conn=NWFSTOCONN(nmp); 387 struct nw_modify_dos_info info; 388 struct ncp_rq *rqp; 389 int error = 0, info_mask; 390 391 if (vap->va_size != VNOVAL) { 392 error = ncp_open_create_file_or_subdir(nmp, vp, 0, NULL, OC_MODE_OPEN, 0, 393 AR_WRITE | AR_READ, &nwn,td,cred); 394 if (error) 395 return error; 396 error = ncp_rq_alloc(73, conn, td, cred, &rqp); 397 if (error) { 398 ncp_close_file(conn, &nwn.fh, td, cred); 399 return error; 400 } 401 mb_put_uint8(&rqp->rq, 0); 402 mb_put_mem(&rqp->rq, (caddr_t)&nwn.fh, 6, MB_MSYSTEM); 403 mb_put_uint32be(&rqp->rq, vap->va_size); 404 mb_put_uint16be(&rqp->rq, 0); 405 error = ncp_request(rqp); 406 np->n_vattr.va_size = np->n_size = vap->va_size; 407 if (!error) 408 ncp_rq_done(rqp); 409 ncp_close_file(conn, &nwn.fh, td, cred); 410 if (error) 411 return error; 412 } 413 info_mask = 0; 414 bzero(&info, sizeof(info)); 415 416 if (vap->va_mtime.tv_sec != VNOVAL) { 417 info_mask |= (DM_MODIFY_TIME | DM_MODIFY_DATE); 418 ncp_unix2dostime(&vap->va_mtime, nmp->m.tz, &info.modifyDate, &info.modifyTime, NULL); 419 } 420 if (vap->va_atime.tv_sec != VNOVAL) { 421 info_mask |= (DM_LAST_ACCESS_DATE); 422 ncp_unix2dostime(&vap->va_atime, nmp->m.tz, &info.lastAccessDate, NULL, NULL); 423 } 424 if (info_mask) { 425 error = ncp_modify_file_or_subdir_dos_info(nmp, vp, info_mask, &info,td,cred); 426 } 427 return (error); 428 } 429 430 int 431 ncp_get_volume_info_with_number(struct ncp_conn *conn, 432 int n, struct ncp_volume_info *target, 433 struct thread *td,struct ucred *cred) 434 { 435 struct ncp_rq *rqp; 436 u_int32_t tmp32; 437 u_int8_t len; 438 int error; 439 440 error = ncp_rq_alloc_subfn(22, 44, conn, td, cred, &rqp); 441 if (error) 442 return error; 443 mb_put_uint8(&rqp->rq,n); 444 error = ncp_request(rqp); 445 if (error) 446 return error; 447 md_get_uint32le(&rqp->rp, &target->total_blocks); 448 md_get_uint32le(&rqp->rp, &target->free_blocks); 449 md_get_uint32le(&rqp->rp, &target->purgeable_blocks); 450 md_get_uint32le(&rqp->rp, &target->not_yet_purgeable_blocks); 451 md_get_uint32le(&rqp->rp, &target->total_dir_entries); 452 md_get_uint32le(&rqp->rp, &target->available_dir_entries); 453 md_get_uint32le(&rqp->rp, &tmp32); 454 md_get_uint8(&rqp->rp, &target->sectors_per_block); 455 bzero(&target->volume_name, sizeof(target->volume_name)); 456 md_get_uint8(&rqp->rp, &len); 457 if (len > NCP_VOLNAME_LEN) { 458 error = ENAMETOOLONG; 459 } else { 460 md_get_mem(&rqp->rp, (caddr_t)&target->volume_name, len, MB_MSYSTEM); 461 } 462 ncp_rq_done(rqp); 463 return error; 464 } 465 466 int 467 ncp_get_namespaces(struct ncp_conn *conn, u_int32_t volume, int *nsf, 468 struct thread *td,struct ucred *cred) 469 { 470 struct ncp_rq *rqp; 471 int error; 472 u_int8_t ns; 473 u_int16_t nscnt; 474 475 error = ncp_rq_alloc(87, conn, td, cred, &rqp); 476 if (error) 477 return error; 478 mb_put_uint8(&rqp->rq, 24); /* Subfunction: Get Loaded Name Spaces */ 479 mb_put_uint16le(&rqp->rq, 0); /* reserved */ 480 mb_put_uint8(&rqp->rq, volume); 481 error = ncp_request(rqp); 482 if (error) 483 return error; 484 md_get_uint16le(&rqp->rp, &nscnt); 485 *nsf = 0; 486 while (nscnt-- > 0) { 487 md_get_uint8(&rqp->rp, &ns); 488 *nsf |= 1 << ns; 489 } 490 ncp_rq_done(rqp); 491 return error; 492 } 493 494 int 495 ncp_lookup_volume(struct ncp_conn *conn, char *volname, 496 u_char *volNum, u_int32_t *dirEnt, 497 struct thread *td,struct ucred *cred) 498 { 499 struct ncp_rq *rqp; 500 u_int32_t tmp32; 501 int error; 502 503 NCPNDEBUG("looking up vol %s\n", volname); 504 error = ncp_rq_alloc(87, conn, td, cred, &rqp); 505 if (error) 506 return error; 507 mb_put_uint8(&rqp->rq, 22); /* Subfunction: Generate dir handle */ 508 mb_put_uint8(&rqp->rq, 0); /* src name space */ 509 mb_put_uint8(&rqp->rq, 0); /* dst name space, always zero */ 510 mb_put_uint16le(&rqp->rq, 0); /* dstNSIndicator (Jn) */ 511 512 mb_put_uint8(&rqp->rq, 0); /* faked volume number */ 513 mb_put_uint32be(&rqp->rq, 0); /* faked dir_base */ 514 mb_put_uint8(&rqp->rq, 0xff); /* Don't have a dir_base */ 515 mb_put_uint8(&rqp->rq, 1); /* 1 path component */ 516 ncp_rq_pstring(rqp, volname); 517 error = ncp_request(rqp); 518 if (error) 519 return error; 520 md_get_uint32le(&rqp->rp, &tmp32); 521 md_get_uint32le(&rqp->rp, dirEnt); 522 md_get_uint8(&rqp->rp, volNum); 523 ncp_rq_done(rqp); 524 return error; 525 } 526 527 /* 528 * XXX: I think the timezone in struct nwfs_args is truly bogus, especially 529 * XXX: considering that nwfs_mount(8) picks this up from the kernel in 530 * XXX: the first place. Since I can't test this, I won't attempt to fix it. 531 * XXX: /phk 532 */ 533 534 void 535 ncp_unix2dostime(tsp, tzoff, ddp, dtp, dhp) 536 struct timespec *tsp; 537 int tzoff; 538 u_int16_t *ddp; 539 u_int16_t *dtp; 540 u_int8_t *dhp; 541 { 542 struct timespec t; 543 544 t = *tsp; 545 546 t.tv_sec = - tzoff * 60 - utc_offset(); 547 timespec2fattime(&t, 1, ddp, dtp, dhp); 548 } 549 550 void 551 ncp_dos2unixtime(dd, dt, dh, tzoff, tsp) 552 u_int dd; 553 u_int dt; 554 u_int dh; 555 int tzoff; 556 struct timespec *tsp; 557 { 558 559 fattime2timespec(dd, dt, dh, 1, tsp); 560 tsp->tv_sec += tzoff * 60 + utc_offset(); 561 }
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