1 /* $NetBSD: coda_venus.c,v 1.29 2012/04/26 03:04:54 christos Exp $ */ 2 3 /* 4 * 5 * Coda: an Experimental Distributed File System 6 * Release 3.1 7 * 8 * Copyright (c) 1987-1998 Carnegie Mellon University 9 * All Rights Reserved 10 * 11 * Permission to use, copy, modify and distribute this software and its 12 * documentation is hereby granted, provided that both the copyright 13 * notice and this permission notice appear in all copies of the 14 * software, derivative works or modified versions, and any portions 15 * thereof, and that both notices appear in supporting documentation, and 16 * that credit is given to Carnegie Mellon University in all documents 17 * and publicity pertaining to direct or indirect use of this code or its 18 * derivatives. 19 * 20 * CODA IS AN EXPERIMENTAL SOFTWARE SYSTEM AND IS KNOWN TO HAVE BUGS, 21 * SOME OF WHICH MAY HAVE SERIOUS CONSEQUENCES. CARNEGIE MELLON ALLOWS 22 * FREE USE OF THIS SOFTWARE IN ITS "AS IS" CONDITION. CARNEGIE MELLON 23 * DISCLAIMS ANY LIABILITY OF ANY KIND FOR ANY DAMAGES WHATSOEVER 24 * RESULTING DIRECTLY OR INDIRECTLY FROM THE USE OF THIS SOFTWARE OR OF 25 * ANY DERIVATIVE WORK. 26 * 27 * Carnegie Mellon encourages users of this software to return any 28 * improvements or extensions that they make, and to grant Carnegie 29 * Mellon the rights to redistribute these changes without encumbrance. 30 * 31 * @(#) coda/coda_venus.c,v 1.1.1.1 1998/08/29 21:26:45 rvb Exp $ 32 */ 33 34 #include <sys/cdefs.h> 35 __KERNEL_RCSID(0, "$NetBSD: coda_venus.c,v 1.29 2012/04/26 03:04:54 christos Exp $"); 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/malloc.h> 40 #include <sys/proc.h> 41 #include <sys/select.h> 42 #include <sys/ioctl.h> 43 /* for CNV_OFLAGS below */ 44 #include <sys/fcntl.h> 45 #include <sys/kauth.h> 46 47 #include <coda/coda.h> 48 #include <coda/cnode.h> 49 #include <coda/coda_venus.h> 50 #include <coda/coda_pioctl.h> 51 52 #ifdef _KERNEL_OPT 53 #include "opt_coda_compat.h" 54 #endif 55 56 /* 57 * Isize and Osize are the sizes of the input and output arguments. 58 * SEMI-INVARIANT: name##_size (e.g. coda_readlink_size) is the max of 59 * the input and output. This invariant is not well maintained, but 60 * should be true after ALLOC_*. Isize is modified after allocation 61 * by STRCPY below - this is in general unsafe and needs fixing. 62 */ 63 64 #define DECL_NO_IN(name) \ 65 struct coda_in_hdr *inp; \ 66 struct name ## _out *outp; \ 67 int name ## _size = sizeof (struct coda_in_hdr); \ 68 int Isize = sizeof (struct coda_in_hdr); \ 69 int Osize = sizeof (struct name ## _out); \ 70 int error 71 72 #define DECL(name) \ 73 struct name ## _in *inp; \ 74 struct name ## _out *outp; \ 75 int name ## _size = sizeof (struct name ## _in); \ 76 int Isize = sizeof (struct name ## _in); \ 77 int Osize = sizeof (struct name ## _out); \ 78 int error 79 80 #define DECL_NO_OUT(name) \ 81 struct name ## _in *inp; \ 82 struct coda_out_hdr *outp; \ 83 int name ## _size = sizeof (struct name ## _in); \ 84 int Isize = sizeof (struct name ## _in); \ 85 int Osize = sizeof (struct coda_out_hdr); \ 86 int error 87 88 #define ALLOC_NO_IN(name) \ 89 if (Osize > name ## _size) \ 90 name ## _size = Osize; \ 91 CODA_ALLOC(inp, struct coda_in_hdr *, name ## _size);\ 92 outp = (struct name ## _out *) inp 93 94 #define ALLOC(name) \ 95 if (Osize > name ## _size) \ 96 name ## _size = Osize; \ 97 CODA_ALLOC(inp, struct name ## _in *, name ## _size);\ 98 outp = (struct name ## _out *) inp 99 100 #define ALLOC_NO_OUT(name) \ 101 if (Osize > name ## _size) \ 102 name ## _size = Osize; \ 103 CODA_ALLOC(inp, struct name ## _in *, name ## _size);\ 104 outp = (struct coda_out_hdr *) inp 105 106 #define STRCPY(struc, name, len) \ 107 memcpy((char *)inp + (int)inp->struc, name, len); \ 108 ((char*)inp + (int)inp->struc)[len++] = 0; \ 109 Isize += len 110 /* XXX verify that Isize has not overrun available storage */ 111 112 #ifdef CODA_COMPAT_5 113 114 #define INIT_IN(in, op, ident, p) \ 115 (in)->opcode = (op); \ 116 (in)->pid = p ? p->p_pid : -1; \ 117 (in)->pgid = p ? p->p_pgid : -1; \ 118 (in)->sid = (p && p->p_session && p->p_session->s_leader) ? \ 119 (p->p_session->s_leader->p_pid) : -1; \ 120 KASSERT(cred != NULL); \ 121 KASSERT(cred != FSCRED); \ 122 if (ident != NOCRED) { \ 123 (in)->cred.cr_uid = kauth_cred_geteuid(ident); \ 124 (in)->cred.cr_groupid = kauth_cred_getegid(ident); \ 125 } else { \ 126 memset(&((in)->cred), 0, sizeof(struct coda_cred)); \ 127 (in)->cred.cr_uid = -1; \ 128 (in)->cred.cr_groupid = -1; \ 129 } \ 130 131 #else 132 133 #define INIT_IN(in, op, ident, p) \ 134 (in)->opcode = (op); \ 135 (in)->pid = p ? p->p_pid : -1; \ 136 (in)->pgid = p ? p->p_pgid : -1; \ 137 KASSERT(cred != NULL); \ 138 KASSERT(cred != FSCRED); \ 139 if (ident != NOCRED) { \ 140 (in)->uid = kauth_cred_geteuid(ident); \ 141 } else { \ 142 (in)->uid = -1; \ 143 } \ 144 145 #endif 146 147 #define INIT_IN_L(in, op, ident, l) \ 148 INIT_IN(in, op, ident, (l ? l->l_proc : NULL)) 149 150 #define CNV_OFLAG(to, from) \ 151 do { \ 152 to = 0; \ 153 if (from & FREAD) to |= C_O_READ; \ 154 if (from & FWRITE) to |= C_O_WRITE; \ 155 if (from & O_TRUNC) to |= C_O_TRUNC; \ 156 if (from & O_EXCL) to |= C_O_EXCL; \ 157 if (from & O_CREAT) to |= C_O_CREAT; \ 158 } while (/*CONSTCOND*/ 0) 159 160 #define CNV_VV2V_ATTR(top, fromp) \ 161 do { \ 162 (top)->va_type = (fromp)->va_type; \ 163 (top)->va_mode = (fromp)->va_mode; \ 164 (top)->va_nlink = (fromp)->va_nlink; \ 165 (top)->va_uid = (fromp)->va_uid; \ 166 (top)->va_gid = (fromp)->va_gid; \ 167 (top)->va_fsid = VNOVAL; \ 168 (top)->va_fileid = (fromp)->va_fileid; \ 169 (top)->va_size = (fromp)->va_size; \ 170 (top)->va_blocksize = (fromp)->va_blocksize; \ 171 (top)->va_atime = (fromp)->va_atime; \ 172 (top)->va_mtime = (fromp)->va_mtime; \ 173 (top)->va_ctime = (fromp)->va_ctime; \ 174 (top)->va_gen = (fromp)->va_gen; \ 175 (top)->va_flags = (fromp)->va_flags; \ 176 (top)->va_rdev = (fromp)->va_rdev; \ 177 (top)->va_bytes = (fromp)->va_bytes; \ 178 (top)->va_filerev = (fromp)->va_filerev; \ 179 (top)->va_vaflags = VNOVAL; \ 180 (top)->va_spare = VNOVAL; \ 181 } while (/*CONSTCOND*/ 0) 182 183 #define CNV_V2VV_ATTR(top, fromp) \ 184 do { \ 185 (top)->va_type = (fromp)->va_type; \ 186 (top)->va_mode = (fromp)->va_mode; \ 187 (top)->va_nlink = (fromp)->va_nlink; \ 188 (top)->va_uid = (fromp)->va_uid; \ 189 (top)->va_gid = (fromp)->va_gid; \ 190 (top)->va_fileid = (fromp)->va_fileid; \ 191 (top)->va_size = (fromp)->va_size; \ 192 (top)->va_blocksize = (fromp)->va_blocksize; \ 193 (top)->va_atime = (fromp)->va_atime; \ 194 (top)->va_mtime = (fromp)->va_mtime; \ 195 (top)->va_ctime = (fromp)->va_ctime; \ 196 (top)->va_gen = (fromp)->va_gen; \ 197 (top)->va_flags = (fromp)->va_flags; \ 198 (top)->va_rdev = (fromp)->va_rdev; \ 199 (top)->va_bytes = (fromp)->va_bytes; \ 200 (top)->va_filerev = (fromp)->va_filerev; \ 201 } while (/*CONSTCOND*/ 0) 202 203 204 int 205 venus_root(void *mdp, 206 kauth_cred_t cred, struct proc *p, 207 /*out*/ CodaFid *VFid) 208 { 209 DECL_NO_IN(coda_root); /* sets Isize & Osize */ 210 ALLOC_NO_IN(coda_root); /* sets inp & outp */ 211 212 /* send the open to venus. */ 213 INIT_IN(inp, CODA_ROOT, cred, p); 214 215 error = coda_call(mdp, Isize, &Osize, (char *)inp); 216 if (!error) 217 *VFid = outp->Fid; 218 219 CODA_FREE(inp, coda_root_size); 220 return error; 221 } 222 223 int 224 venus_open(void *mdp, CodaFid *fid, int flag, 225 kauth_cred_t cred, struct lwp *l, 226 /*out*/ dev_t *dev, ino_t *inode) 227 { 228 int cflag; 229 DECL(coda_open); /* sets Isize & Osize */ 230 ALLOC(coda_open); /* sets inp & outp */ 231 232 /* send the open to venus. */ 233 INIT_IN_L(&inp->ih, CODA_OPEN, cred, l); 234 inp->Fid = *fid; 235 CNV_OFLAG(cflag, flag); 236 inp->flags = cflag; 237 238 error = coda_call(mdp, Isize, &Osize, (char *)inp); 239 KASSERT(outp != NULL); 240 if (!error) { 241 *dev = outp->dev; 242 *inode = outp->inode; 243 } 244 245 CODA_FREE(inp, coda_open_size); 246 return error; 247 } 248 249 int 250 venus_close(void *mdp, CodaFid *fid, int flag, 251 kauth_cred_t cred, struct lwp *l) 252 { 253 int cflag; 254 DECL_NO_OUT(coda_close); /* sets Isize & Osize */ 255 ALLOC_NO_OUT(coda_close); /* sets inp & outp */ 256 257 INIT_IN_L(&inp->ih, CODA_CLOSE, cred, l); 258 inp->Fid = *fid; 259 CNV_OFLAG(cflag, flag); 260 inp->flags = cflag; 261 262 error = coda_call(mdp, Isize, &Osize, (char *)inp); 263 264 CODA_FREE(inp, coda_close_size); 265 return error; 266 } 267 268 /* 269 * these two calls will not exist!!! the container file is read/written 270 * directly. 271 */ 272 void 273 venus_read(void) 274 { 275 } 276 277 void 278 venus_write(void) 279 { 280 } 281 282 /* 283 * this is a bit sad too. the ioctl's are for the control file, not for 284 * normal files. 285 */ 286 int 287 venus_ioctl(void *mdp, CodaFid *fid, 288 int com, int flag, void *data, 289 kauth_cred_t cred, struct lwp *l) 290 { 291 DECL(coda_ioctl); /* sets Isize & Osize */ 292 struct PioctlData *iap = (struct PioctlData *)data; 293 int tmp; 294 295 coda_ioctl_size = VC_MAXMSGSIZE; 296 ALLOC(coda_ioctl); /* sets inp & outp */ 297 298 INIT_IN_L(&inp->ih, CODA_IOCTL, cred, l); 299 inp->Fid = *fid; 300 301 /* command was mutated by increasing its size field to reflect the 302 * path and follow args. we need to subtract that out before sending 303 * the command to venus. 304 */ 305 inp->cmd = (com & ~(IOCPARM_MASK << 16)); 306 tmp = ((com >> 16) & IOCPARM_MASK) - sizeof (char *) - sizeof (int); 307 inp->cmd |= (tmp & IOCPARM_MASK) << 16; 308 309 if (iap->vi.in_size > VC_MAXMSGSIZE || iap->vi.out_size > VC_MAXMSGSIZE) { 310 CODA_FREE(inp, coda_ioctl_size); 311 return (EINVAL); 312 } 313 314 inp->rwflag = flag; 315 inp->len = iap->vi.in_size; 316 inp->data = (char *)(sizeof (struct coda_ioctl_in)); 317 318 error = copyin(iap->vi.in, (char*)inp + (int)(long)inp->data, 319 iap->vi.in_size); 320 if (error) { 321 CODA_FREE(inp, coda_ioctl_size); 322 return(error); 323 } 324 325 Osize = VC_MAXMSGSIZE; 326 error = coda_call(mdp, Isize + iap->vi.in_size, &Osize, (char *)inp); 327 328 /* copy out the out buffer. */ 329 if (!error) { 330 if (outp->len > iap->vi.out_size) { 331 error = EINVAL; 332 } else { 333 error = copyout((char *)outp + (int)(long)outp->data, 334 iap->vi.out, iap->vi.out_size); 335 } 336 } 337 338 CODA_FREE(inp, coda_ioctl_size); 339 return error; 340 } 341 342 int 343 venus_getattr(void *mdp, CodaFid *fid, 344 kauth_cred_t cred, struct lwp *l, 345 /*out*/ struct vattr *vap) 346 { 347 DECL(coda_getattr); /* sets Isize & Osize */ 348 ALLOC(coda_getattr); /* sets inp & outp */ 349 350 /* send the open to venus. */ 351 INIT_IN_L(&inp->ih, CODA_GETATTR, cred, l); 352 inp->Fid = *fid; 353 354 error = coda_call(mdp, Isize, &Osize, (char *)inp); 355 if (!error) { 356 CNV_VV2V_ATTR(vap, &outp->attr); 357 } 358 359 CODA_FREE(inp, coda_getattr_size); 360 return error; 361 } 362 363 int 364 venus_setattr(void *mdp, CodaFid *fid, struct vattr *vap, 365 kauth_cred_t cred, struct lwp *l) 366 { 367 DECL_NO_OUT(coda_setattr); /* sets Isize & Osize */ 368 ALLOC_NO_OUT(coda_setattr); /* sets inp & outp */ 369 370 /* send the open to venus. */ 371 INIT_IN_L(&inp->ih, CODA_SETATTR, cred, l); 372 inp->Fid = *fid; 373 CNV_V2VV_ATTR(&inp->attr, vap); 374 375 error = coda_call(mdp, Isize, &Osize, (char *)inp); 376 377 CODA_FREE(inp, coda_setattr_size); 378 return error; 379 } 380 381 int 382 venus_access(void *mdp, CodaFid *fid, int mode, 383 kauth_cred_t cred, struct lwp *l) 384 { 385 DECL_NO_OUT(coda_access); /* sets Isize & Osize */ 386 ALLOC_NO_OUT(coda_access); /* sets inp & outp */ 387 388 /* send the open to venus. */ 389 INIT_IN_L(&inp->ih, CODA_ACCESS, cred, l); 390 inp->Fid = *fid; 391 inp->flags = mode; 392 393 error = coda_call(mdp, Isize, &Osize, (char *)inp); 394 395 CODA_FREE(inp, coda_access_size); 396 return error; 397 } 398 399 int 400 venus_readlink(void *mdp, CodaFid *fid, 401 kauth_cred_t cred, struct lwp *l, 402 /*out*/ char **str, int *len) 403 { 404 DECL(coda_readlink); /* sets Isize & Osize */ 405 /* XXX coda_readlink_size should not be set here */ 406 coda_readlink_size += CODA_MAXPATHLEN; 407 Osize += CODA_MAXPATHLEN; 408 ALLOC(coda_readlink); /* sets inp & outp */ 409 410 /* send the open to venus. */ 411 INIT_IN_L(&inp->ih, CODA_READLINK, cred, l); 412 inp->Fid = *fid; 413 414 error = coda_call(mdp, Isize, &Osize, (char *)inp); 415 KASSERT(outp != NULL); 416 if (error != 0) 417 goto out; 418 419 /* Check count for reasonableness */ 420 if (outp->count <= 0 || outp->count > CODA_MAXPATHLEN) { 421 printf("venus_readlink: bad count %d\n", outp->count); 422 error = EINVAL; 423 goto out; 424 } 425 426 /* 427 * Check data pointer for reasonableness. It must point after 428 * itself, and within the allocated region. 429 */ 430 if ((intptr_t) outp->data < sizeof(struct coda_readlink_out) ) { 431 printf("venus_readlink: data pointer %lld too low\n", 432 (long long)((intptr_t) outp->data)); 433 error = EINVAL; 434 goto out; 435 } 436 437 if ((intptr_t) outp->data + outp->count > 438 sizeof(struct coda_readlink_out) + CODA_MAXPATHLEN) { 439 printf("venus_readlink: data pointer %lld too high\n", 440 (long long)((intptr_t) outp->data)); 441 error = EINVAL; 442 goto out; 443 } 444 445 if (!error) { 446 CODA_ALLOC(*str, char *, outp->count); 447 *len = outp->count; 448 memcpy(*str, (char *)outp + (int)(long)outp->data, *len); 449 } 450 451 out: 452 CODA_FREE(inp, coda_readlink_size); 453 return error; 454 } 455 456 int 457 venus_fsync(void *mdp, CodaFid *fid, 458 kauth_cred_t cred, struct lwp *l) 459 { 460 DECL_NO_OUT(coda_fsync); /* sets Isize & Osize */ 461 ALLOC_NO_OUT(coda_fsync); /* sets inp & outp */ 462 463 /* send the open to venus. */ 464 INIT_IN_L(&inp->ih, CODA_FSYNC, cred, l); 465 inp->Fid = *fid; 466 467 error = coda_call(mdp, Isize, &Osize, (char *)inp); 468 469 CODA_FREE(inp, coda_fsync_size); 470 return error; 471 } 472 473 int 474 venus_lookup(void *mdp, CodaFid *fid, 475 const char *nm, int len, 476 kauth_cred_t cred, struct lwp *l, 477 /*out*/ CodaFid *VFid, int *vtype) 478 { 479 DECL(coda_lookup); /* sets Isize & Osize */ 480 coda_lookup_size += len + 1; 481 ALLOC(coda_lookup); /* sets inp & outp */ 482 483 /* send the open to venus. */ 484 INIT_IN_L(&inp->ih, CODA_LOOKUP, cred, l); 485 inp->Fid = *fid; 486 487 /* NOTE: 488 * Between version 1 and version 2 we have added an extra flag field 489 * to this structure. But because the string was at the end and because 490 * of the weird way we represent strings by having the slot point to 491 * where the string characters are in the "heap", we can just slip the 492 * flag parameter in after the string slot pointer and veni that don't 493 * know better won't see this new flag field ... 494 * Otherwise we'd need two different venus_lookup functions. 495 */ 496 inp->name = Isize; 497 inp->flags = CLU_CASE_SENSITIVE; /* doesn't really matter for BSD */ 498 /* This is safe because we preallocated len+1 extra. */ 499 STRCPY(name, nm, len); /* increments Isize */ 500 501 error = coda_call(mdp, Isize, &Osize, (char *)inp); 502 KASSERT(outp != NULL); 503 if (!error) { 504 *VFid = outp->Fid; 505 *vtype = outp->vtype; 506 } 507 508 CODA_FREE(inp, coda_lookup_size); 509 return error; 510 } 511 512 int 513 venus_create(void *mdp, CodaFid *fid, 514 const char *nm, int len, int exclusive, int mode, struct vattr *va, 515 kauth_cred_t cred, struct lwp *l, 516 /*out*/ CodaFid *VFid, struct vattr *attr) 517 { 518 DECL(coda_create); /* sets Isize & Osize */ 519 coda_create_size += len + 1; 520 ALLOC(coda_create); /* sets inp & outp */ 521 522 /* send the open to venus. */ 523 INIT_IN_L(&inp->ih, CODA_CREATE, cred, l); 524 inp->Fid = *fid; 525 inp->excl = exclusive ? C_O_EXCL : 0; 526 inp->mode = mode<<6; 527 CNV_V2VV_ATTR(&inp->attr, va); 528 529 inp->name = Isize; 530 STRCPY(name, nm, len); /* increments Isize */ 531 532 error = coda_call(mdp, Isize, &Osize, (char *)inp); 533 KASSERT(outp != NULL); 534 if (!error) { 535 *VFid = outp->Fid; 536 CNV_VV2V_ATTR(attr, &outp->attr); 537 } 538 539 CODA_FREE(inp, coda_create_size); 540 return error; 541 } 542 543 int 544 venus_remove(void *mdp, CodaFid *fid, 545 const char *nm, int len, 546 kauth_cred_t cred, struct lwp *l) 547 { 548 DECL_NO_OUT(coda_remove); /* sets Isize & Osize */ 549 coda_remove_size += len + 1; 550 ALLOC_NO_OUT(coda_remove); /* sets inp & outp */ 551 552 /* send the open to venus. */ 553 INIT_IN_L(&inp->ih, CODA_REMOVE, cred, l); 554 inp->Fid = *fid; 555 556 inp->name = Isize; 557 STRCPY(name, nm, len); /* increments Isize */ 558 559 error = coda_call(mdp, Isize, &Osize, (char *)inp); 560 561 CODA_FREE(inp, coda_remove_size); 562 return error; 563 } 564 565 int 566 venus_link(void *mdp, CodaFid *fid, CodaFid *tfid, 567 const char *nm, int len, 568 kauth_cred_t cred, struct lwp *l) 569 { 570 DECL_NO_OUT(coda_link); /* sets Isize & Osize */ 571 coda_link_size += len + 1; 572 ALLOC_NO_OUT(coda_link); /* sets inp & outp */ 573 574 /* send the open to venus. */ 575 INIT_IN_L(&inp->ih, CODA_LINK, cred, l); 576 inp->sourceFid = *fid; 577 inp->destFid = *tfid; 578 579 inp->tname = Isize; 580 STRCPY(tname, nm, len); /* increments Isize */ 581 582 error = coda_call(mdp, Isize, &Osize, (char *)inp); 583 584 CODA_FREE(inp, coda_link_size); 585 return error; 586 } 587 588 int 589 venus_rename(void *mdp, CodaFid *fid, CodaFid *tfid, 590 const char *nm, int len, const char *tnm, int tlen, 591 kauth_cred_t cred, struct lwp *l) 592 { 593 DECL_NO_OUT(coda_rename); /* sets Isize & Osize */ 594 coda_rename_size += len + 1 + tlen + 1; 595 ALLOC_NO_OUT(coda_rename); /* sets inp & outp */ 596 597 /* send the open to venus. */ 598 INIT_IN_L(&inp->ih, CODA_RENAME, cred, l); 599 inp->sourceFid = *fid; 600 inp->destFid = *tfid; 601 602 inp->srcname = Isize; 603 STRCPY(srcname, nm, len); /* increments Isize */ 604 605 inp->destname = Isize; 606 STRCPY(destname, tnm, tlen); /* increments Isize */ 607 608 error = coda_call(mdp, Isize, &Osize, (char *)inp); 609 610 CODA_FREE(inp, coda_rename_size); 611 return error; 612 } 613 614 int 615 venus_mkdir(void *mdp, CodaFid *fid, 616 const char *nm, int len, struct vattr *va, 617 kauth_cred_t cred, struct lwp *l, 618 /*out*/ CodaFid *VFid, struct vattr *ova) 619 { 620 DECL(coda_mkdir); /* sets Isize & Osize */ 621 coda_mkdir_size += len + 1; 622 ALLOC(coda_mkdir); /* sets inp & outp */ 623 624 /* send the open to venus. */ 625 INIT_IN_L(&inp->ih, CODA_MKDIR, cred, l); 626 inp->Fid = *fid; 627 CNV_V2VV_ATTR(&inp->attr, va); 628 629 inp->name = Isize; 630 STRCPY(name, nm, len); /* increments Isize */ 631 632 error = coda_call(mdp, Isize, &Osize, (char *)inp); 633 KASSERT(outp != NULL); 634 if (!error) { 635 *VFid = outp->Fid; 636 CNV_VV2V_ATTR(ova, &outp->attr); 637 } 638 639 CODA_FREE(inp, coda_mkdir_size); 640 return error; 641 } 642 643 int 644 venus_rmdir(void *mdp, CodaFid *fid, 645 const char *nm, int len, 646 kauth_cred_t cred, struct lwp *l) 647 { 648 DECL_NO_OUT(coda_rmdir); /* sets Isize & Osize */ 649 coda_rmdir_size += len + 1; 650 ALLOC_NO_OUT(coda_rmdir); /* sets inp & outp */ 651 652 /* send the open to venus. */ 653 INIT_IN_L(&inp->ih, CODA_RMDIR, cred, l); 654 inp->Fid = *fid; 655 656 inp->name = Isize; 657 STRCPY(name, nm, len); /* increments Isize */ 658 659 error = coda_call(mdp, Isize, &Osize, (char *)inp); 660 661 CODA_FREE(inp, coda_rmdir_size); 662 return error; 663 } 664 665 int 666 venus_symlink(void *mdp, CodaFid *fid, 667 const char *lnm, int llen, const char *nm, int len, struct vattr *va, 668 kauth_cred_t cred, struct lwp *l) 669 { 670 DECL_NO_OUT(coda_symlink); /* sets Isize & Osize */ 671 coda_symlink_size += llen + 1 + len + 1; 672 ALLOC_NO_OUT(coda_symlink); /* sets inp & outp */ 673 674 /* send the open to venus. */ 675 INIT_IN_L(&inp->ih, CODA_SYMLINK, cred, l); 676 inp->Fid = *fid; 677 CNV_V2VV_ATTR(&inp->attr, va); 678 679 inp->srcname = Isize; 680 STRCPY(srcname, lnm, llen); /* increments Isize */ 681 682 inp->tname = Isize; 683 STRCPY(tname, nm, len); /* increments Isize */ 684 685 error = coda_call(mdp, Isize, &Osize, (char *)inp); 686 687 CODA_FREE(inp, coda_symlink_size); 688 return error; 689 } 690 691 int 692 venus_readdir(void *mdp, CodaFid *fid, 693 int count, int offset, 694 kauth_cred_t cred, struct lwp *l, 695 /*out*/ char *buffer, int *len) 696 { 697 DECL(coda_readdir); /* sets Isize & Osize */ 698 coda_readdir_size = VC_MAXMSGSIZE; 699 ALLOC(coda_readdir); /* sets inp & outp */ 700 701 /* send the open to venus. */ 702 INIT_IN_L(&inp->ih, CODA_READDIR, cred, l); 703 inp->Fid = *fid; 704 inp->count = count; 705 inp->offset = offset; 706 707 Osize = VC_MAXMSGSIZE; 708 error = coda_call(mdp, Isize, &Osize, (char *)inp); 709 KASSERT(outp != NULL); 710 if (!error) { 711 memcpy(buffer, (char *)outp + (int)(long)outp->data, outp->size); 712 *len = outp->size; 713 } 714 715 CODA_FREE(inp, coda_readdir_size); 716 return error; 717 } 718 719 int 720 venus_statfs(void *mdp, kauth_cred_t cred, struct lwp *l, 721 /*out*/ struct coda_statfs *fsp) 722 { 723 DECL(coda_statfs); /* sets Isize & Osize */ 724 ALLOC(coda_statfs); /* sets inp & outp */ 725 726 /* send the open to venus. */ 727 INIT_IN_L(&inp->ih, CODA_STATFS, cred, l); 728 729 error = coda_call(mdp, Isize, &Osize, (char *)inp); 730 KASSERT(outp != NULL); 731 if (!error) { 732 *fsp = outp->stat; 733 } 734 735 CODA_FREE(inp, coda_statfs_size); 736 return error; 737 } 738 739 int 740 venus_fhtovp(void *mdp, CodaFid *fid, 741 kauth_cred_t cred, struct proc *p, 742 /*out*/ CodaFid *VFid, int *vtype) 743 { 744 DECL(coda_vget); /* sets Isize & Osize */ 745 ALLOC(coda_vget); /* sets inp & outp */ 746 747 /* Send the open to Venus. */ 748 INIT_IN(&inp->ih, CODA_VGET, cred, p); 749 inp->Fid = *fid; 750 751 error = coda_call(mdp, Isize, &Osize, (char *)inp); 752 KASSERT(outp != NULL); 753 if (!error) { 754 *VFid = outp->Fid; 755 *vtype = outp->vtype; 756 } 757 758 CODA_FREE(inp, coda_vget_size); 759 return error; 760 } 761