coda_venus.c revision 1.22
1 /* $NetBSD: coda_venus.c,v 1.22 2006/04/05 06:55:26 he 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 1.22 2006/04/05 06:55:26 he 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 46 #include <coda/coda.h> 47 #include <coda/cnode.h> 48 #include <coda/coda_venus.h> 49 #include <coda/coda_pioctl.h> 50 51 #ifdef _KERNEL_OPT 52 #include "opt_coda_compat.h" 53 #endif 54 55 /* 56 * Isize and Osize are the sizes of the input and output arguments. 57 * SEMI-INVARIANT: name##_size (e.g. coda_readlink_size) is the max of 58 * the input and output. This invariant is not well maintained, but 59 * should be true after ALLOC_*. Isize is modified after allocation 60 * by STRCPY below - this is in general unsafe and needs fixing. 61 */ 62 63 #define DECL_NO_IN(name) \ 64 struct coda_in_hdr *inp; \ 65 struct name ## _out *outp; \ 66 int name ## _size = sizeof (struct coda_in_hdr); \ 67 int Isize = sizeof (struct coda_in_hdr); \ 68 int Osize = sizeof (struct name ## _out); \ 69 int error 70 71 #define DECL(name) \ 72 struct name ## _in *inp; \ 73 struct name ## _out *outp; \ 74 int name ## _size = sizeof (struct name ## _in); \ 75 int Isize = sizeof (struct name ## _in); \ 76 int Osize = sizeof (struct name ## _out); \ 77 int error 78 79 #define DECL_NO_OUT(name) \ 80 struct name ## _in *inp; \ 81 struct coda_out_hdr *outp; \ 82 int name ## _size = sizeof (struct name ## _in); \ 83 int Isize = sizeof (struct name ## _in); \ 84 int Osize = sizeof (struct coda_out_hdr); \ 85 int error 86 87 #define ALLOC_NO_IN(name) \ 88 if (Osize > name ## _size) \ 89 name ## _size = Osize; \ 90 CODA_ALLOC(inp, struct coda_in_hdr *, name ## _size);\ 91 outp = (struct name ## _out *) inp 92 93 #define ALLOC(name) \ 94 if (Osize > name ## _size) \ 95 name ## _size = Osize; \ 96 CODA_ALLOC(inp, struct name ## _in *, name ## _size);\ 97 outp = (struct name ## _out *) inp 98 99 #define ALLOC_NO_OUT(name) \ 100 if (Osize > name ## _size) \ 101 name ## _size = Osize; \ 102 CODA_ALLOC(inp, struct name ## _in *, name ## _size);\ 103 outp = (struct coda_out_hdr *) inp 104 105 #define STRCPY(struc, name, len) \ 106 bcopy(name, (char *)inp + (int)inp->struc, len); \ 107 ((char*)inp + (int)inp->struc)[len++] = 0; \ 108 Isize += len 109 /* XXX verify that Isize has not overrun available storage */ 110 111 #ifdef CODA_COMPAT_5 112 113 #define INIT_IN(in, op, ident, p) \ 114 (in)->opcode = (op); \ 115 (in)->pid = p ? p->p_pid : -1; \ 116 (in)->pgid = p ? p->p_pgid : -1; \ 117 (in)->sid = (p && p->p_session && p->p_session->s_leader) ? \ 118 (p->p_session->s_leader->p_pid) : -1; \ 119 KASSERT(cred != NULL); \ 120 KASSERT(cred != FSCRED); \ 121 if (ident != NOCRED) { \ 122 (in)->cred.cr_uid = ident->cr_uid; \ 123 (in)->cred.cr_groupid = ident->cr_gid; \ 124 } else { \ 125 memset(&((in)->cred), 0, sizeof(struct coda_cred)); \ 126 (in)->cred.cr_uid = -1; \ 127 (in)->cred.cr_groupid = -1; \ 128 } \ 129 130 #else 131 132 #define INIT_IN(in, op, ident, p) \ 133 (in)->opcode = (op); \ 134 (in)->pid = p ? p->p_pid : -1; \ 135 (in)->pgid = p ? p->p_pgid : -1; \ 136 KASSERT(cred != NULL); \ 137 KASSERT(cred != FSCRED); \ 138 if (ident != NOCRED) { \ 139 (in)->uid = ident->cr_uid; \ 140 } else { \ 141 (in)->uid = -1; \ 142 } \ 143 144 #endif 145 146 #define INIT_IN_L(in, op, ident, l) \ 147 INIT_IN(in, op, ident, (l ? l->l_proc : NULL)) 148 149 #define CNV_OFLAG(to, from) \ 150 do { \ 151 to = 0; \ 152 if (from & FREAD) to |= C_O_READ; \ 153 if (from & FWRITE) to |= C_O_WRITE; \ 154 if (from & O_TRUNC) to |= C_O_TRUNC; \ 155 if (from & O_EXCL) to |= C_O_EXCL; \ 156 if (from & O_CREAT) to |= C_O_CREAT; \ 157 } while (/*CONSTCOND*/ 0) 158 159 #define CNV_VV2V_ATTR(top, fromp) \ 160 do { \ 161 (top)->va_type = (fromp)->va_type; \ 162 (top)->va_mode = (fromp)->va_mode; \ 163 (top)->va_nlink = (fromp)->va_nlink; \ 164 (top)->va_uid = (fromp)->va_uid; \ 165 (top)->va_gid = (fromp)->va_gid; \ 166 (top)->va_fsid = VNOVAL; \ 167 (top)->va_fileid = (fromp)->va_fileid; \ 168 (top)->va_size = (fromp)->va_size; \ 169 (top)->va_blocksize = (fromp)->va_blocksize; \ 170 (top)->va_atime = (fromp)->va_atime; \ 171 (top)->va_mtime = (fromp)->va_mtime; \ 172 (top)->va_ctime = (fromp)->va_ctime; \ 173 (top)->va_gen = (fromp)->va_gen; \ 174 (top)->va_flags = (fromp)->va_flags; \ 175 (top)->va_rdev = (fromp)->va_rdev; \ 176 (top)->va_bytes = (fromp)->va_bytes; \ 177 (top)->va_filerev = (fromp)->va_filerev; \ 178 (top)->va_vaflags = VNOVAL; \ 179 (top)->va_spare = VNOVAL; \ 180 } while (/*CONSTCOND*/ 0) 181 182 #define CNV_V2VV_ATTR(top, fromp) \ 183 do { \ 184 (top)->va_type = (fromp)->va_type; \ 185 (top)->va_mode = (fromp)->va_mode; \ 186 (top)->va_nlink = (fromp)->va_nlink; \ 187 (top)->va_uid = (fromp)->va_uid; \ 188 (top)->va_gid = (fromp)->va_gid; \ 189 (top)->va_fileid = (fromp)->va_fileid; \ 190 (top)->va_size = (fromp)->va_size; \ 191 (top)->va_blocksize = (fromp)->va_blocksize; \ 192 (top)->va_atime = (fromp)->va_atime; \ 193 (top)->va_mtime = (fromp)->va_mtime; \ 194 (top)->va_ctime = (fromp)->va_ctime; \ 195 (top)->va_gen = (fromp)->va_gen; \ 196 (top)->va_flags = (fromp)->va_flags; \ 197 (top)->va_rdev = (fromp)->va_rdev; \ 198 (top)->va_bytes = (fromp)->va_bytes; \ 199 (top)->va_filerev = (fromp)->va_filerev; \ 200 } while (/*CONSTCOND*/ 0) 201 202 203 int coda_kernel_version = CODA_KERNEL_VERSION; 204 205 int 206 venus_root(void *mdp, 207 struct ucred *cred, struct proc *p, 208 /*out*/ CodaFid *VFid) 209 { 210 DECL_NO_IN(coda_root); /* sets Isize & Osize */ 211 ALLOC_NO_IN(coda_root); /* sets inp & outp */ 212 213 /* send the open to venus. */ 214 INIT_IN(inp, CODA_ROOT, cred, p); 215 216 error = coda_call(mdp, Isize, &Osize, (char *)inp); 217 if (!error) 218 *VFid = outp->Fid; 219 220 CODA_FREE(inp, coda_root_size); 221 return error; 222 } 223 224 int 225 venus_open(void *mdp, CodaFid *fid, int flag, 226 struct ucred *cred, struct lwp *l, 227 /*out*/ dev_t *dev, ino_t *inode) 228 { 229 int cflag; 230 DECL(coda_open); /* sets Isize & Osize */ 231 ALLOC(coda_open); /* sets inp & outp */ 232 233 /* send the open to venus. */ 234 INIT_IN_L(&inp->ih, CODA_OPEN, cred, l); 235 inp->Fid = *fid; 236 CNV_OFLAG(cflag, flag); 237 inp->flags = cflag; 238 239 error = coda_call(mdp, Isize, &Osize, (char *)inp); 240 KASSERT(outp != NULL); 241 if (!error) { 242 *dev = outp->dev; 243 *inode = outp->inode; 244 } 245 246 CODA_FREE(inp, coda_open_size); 247 return error; 248 } 249 250 int 251 venus_close(void *mdp, CodaFid *fid, int flag, 252 struct ucred *cred, struct lwp *l) 253 { 254 int cflag; 255 DECL_NO_OUT(coda_close); /* sets Isize & Osize */ 256 ALLOC_NO_OUT(coda_close); /* sets inp & outp */ 257 258 INIT_IN_L(&inp->ih, CODA_CLOSE, cred, l); 259 inp->Fid = *fid; 260 CNV_OFLAG(cflag, flag); 261 inp->flags = cflag; 262 263 error = coda_call(mdp, Isize, &Osize, (char *)inp); 264 265 CODA_FREE(inp, coda_close_size); 266 return error; 267 } 268 269 /* 270 * these two calls will not exist!!! the container file is read/written 271 * directly. 272 */ 273 void 274 venus_read(void) 275 { 276 } 277 278 void 279 venus_write(void) 280 { 281 } 282 283 /* 284 * this is a bit sad too. the ioctl's are for the control file, not for 285 * normal files. 286 */ 287 int 288 venus_ioctl(void *mdp, CodaFid *fid, 289 int com, int flag, caddr_t data, 290 struct ucred *cred, struct lwp *l) 291 { 292 DECL(coda_ioctl); /* sets Isize & Osize */ 293 struct PioctlData *iap = (struct PioctlData *)data; 294 int tmp; 295 296 coda_ioctl_size = VC_MAXMSGSIZE; 297 ALLOC(coda_ioctl); /* sets inp & outp */ 298 299 INIT_IN_L(&inp->ih, CODA_IOCTL, cred, l); 300 inp->Fid = *fid; 301 302 /* command was mutated by increasing its size field to reflect the 303 * path and follow args. we need to subtract that out before sending 304 * the command to venus. 305 */ 306 inp->cmd = (com & ~(IOCPARM_MASK << 16)); 307 tmp = ((com >> 16) & IOCPARM_MASK) - sizeof (char *) - sizeof (int); 308 inp->cmd |= (tmp & IOCPARM_MASK) << 16; 309 310 if (iap->vi.in_size < 0 || iap->vi.in_size > VC_MAXMSGSIZE) 311 return (EINVAL); 312 313 inp->rwflag = flag; 314 inp->len = iap->vi.in_size; 315 inp->data = (char *)(sizeof (struct coda_ioctl_in)); 316 317 error = copyin(iap->vi.in, (char*)inp + (int)(long)inp->data, 318 iap->vi.in_size); 319 if (error) { 320 CODA_FREE(inp, coda_ioctl_size); 321 return(error); 322 } 323 324 Osize = VC_MAXMSGSIZE; 325 error = coda_call(mdp, Isize + iap->vi.in_size, &Osize, (char *)inp); 326 327 /* copy out the out buffer. */ 328 if (!error) { 329 if (outp->len > iap->vi.out_size) { 330 error = EINVAL; 331 } else { 332 error = copyout((char *)outp + (int)(long)outp->data, 333 iap->vi.out, iap->vi.out_size); 334 } 335 } 336 337 CODA_FREE(inp, coda_ioctl_size); 338 return error; 339 } 340 341 int 342 venus_getattr(void *mdp, CodaFid *fid, 343 struct ucred *cred, struct lwp *l, 344 /*out*/ struct vattr *vap) 345 { 346 DECL(coda_getattr); /* sets Isize & Osize */ 347 ALLOC(coda_getattr); /* sets inp & outp */ 348 349 /* send the open to venus. */ 350 INIT_IN_L(&inp->ih, CODA_GETATTR, cred, l); 351 inp->Fid = *fid; 352 353 error = coda_call(mdp, Isize, &Osize, (char *)inp); 354 if (!error) { 355 CNV_VV2V_ATTR(vap, &outp->attr); 356 } 357 358 CODA_FREE(inp, coda_getattr_size); 359 return error; 360 } 361 362 int 363 venus_setattr(void *mdp, CodaFid *fid, struct vattr *vap, 364 struct ucred *cred, struct lwp *l) 365 { 366 DECL_NO_OUT(coda_setattr); /* sets Isize & Osize */ 367 ALLOC_NO_OUT(coda_setattr); /* sets inp & outp */ 368 369 /* send the open to venus. */ 370 INIT_IN_L(&inp->ih, CODA_SETATTR, cred, l); 371 inp->Fid = *fid; 372 CNV_V2VV_ATTR(&inp->attr, vap); 373 374 error = coda_call(mdp, Isize, &Osize, (char *)inp); 375 376 CODA_FREE(inp, coda_setattr_size); 377 return error; 378 } 379 380 int 381 venus_access(void *mdp, CodaFid *fid, int mode, 382 struct ucred *cred, struct lwp *l) 383 { 384 DECL_NO_OUT(coda_access); /* sets Isize & Osize */ 385 ALLOC_NO_OUT(coda_access); /* sets inp & outp */ 386 387 /* send the open to venus. */ 388 INIT_IN_L(&inp->ih, CODA_ACCESS, cred, l); 389 inp->Fid = *fid; 390 inp->flags = mode; 391 392 error = coda_call(mdp, Isize, &Osize, (char *)inp); 393 394 CODA_FREE(inp, coda_access_size); 395 return error; 396 } 397 398 int 399 venus_readlink(void *mdp, CodaFid *fid, 400 struct ucred *cred, struct lwp *l, 401 /*out*/ char **str, int *len) 402 { 403 DECL(coda_readlink); /* sets Isize & Osize */ 404 /* XXX coda_readlink_size should not be set here */ 405 coda_readlink_size += CODA_MAXPATHLEN; 406 Osize += CODA_MAXPATHLEN; 407 ALLOC(coda_readlink); /* sets inp & outp */ 408 409 /* send the open to venus. */ 410 INIT_IN_L(&inp->ih, CODA_READLINK, cred, l); 411 inp->Fid = *fid; 412 413 error = coda_call(mdp, Isize, &Osize, (char *)inp); 414 KASSERT(outp != NULL); 415 if (error != 0) 416 goto out; 417 418 /* Check count for reasonableness */ 419 if (outp->count <= 0 || outp->count > CODA_MAXPATHLEN) { 420 printf("venus_readlink: bad count %d\n", outp->count); 421 error = EINVAL; 422 goto out; 423 } 424 425 /* 426 * Check data pointer for reasonableness. It must point after 427 * itself, and within the allocated region. 428 */ 429 if ((intptr_t) outp->data < sizeof(struct coda_readlink_out) ) { 430 printf("venus_readlink: data pointer %lld too low\n", 431 (long long)((intptr_t) outp->data)); 432 error = EINVAL; 433 goto out; 434 } 435 436 if ((intptr_t) outp->data + outp->count > 437 sizeof(struct coda_readlink_out) + CODA_MAXPATHLEN) { 438 printf("venus_readlink: data pointer %lld too high\n", 439 (long long)((intptr_t) outp->data)); 440 error = EINVAL; 441 goto out; 442 } 443 444 if (!error) { 445 CODA_ALLOC(*str, char *, outp->count); 446 *len = outp->count; 447 bcopy((char *)outp + (int)(long)outp->data, *str, *len); 448 } 449 450 out: 451 CODA_FREE(inp, coda_readlink_size); 452 return error; 453 } 454 455 int 456 venus_fsync(void *mdp, CodaFid *fid, 457 struct ucred *cred, struct lwp *l) 458 { 459 DECL_NO_OUT(coda_fsync); /* sets Isize & Osize */ 460 ALLOC_NO_OUT(coda_fsync); /* sets inp & outp */ 461 462 /* send the open to venus. */ 463 INIT_IN_L(&inp->ih, CODA_FSYNC, cred, l); 464 inp->Fid = *fid; 465 466 error = coda_call(mdp, Isize, &Osize, (char *)inp); 467 468 CODA_FREE(inp, coda_fsync_size); 469 return error; 470 } 471 472 int 473 venus_lookup(void *mdp, CodaFid *fid, 474 const char *nm, int len, 475 struct ucred *cred, struct lwp *l, 476 /*out*/ CodaFid *VFid, int *vtype) 477 { 478 DECL(coda_lookup); /* sets Isize & Osize */ 479 coda_lookup_size += len + 1; 480 ALLOC(coda_lookup); /* sets inp & outp */ 481 482 /* send the open to venus. */ 483 INIT_IN_L(&inp->ih, CODA_LOOKUP, cred, l); 484 inp->Fid = *fid; 485 486 /* NOTE: 487 * Between version 1 and version 2 we have added an extra flag field 488 * to this structure. But because the string was at the end and because 489 * of the weird way we represent strings by having the slot point to 490 * where the string characters are in the "heap", we can just slip the 491 * flag parameter in after the string slot pointer and veni that don't 492 * know better won't see this new flag field ... 493 * Otherwise we'd need two different venus_lookup functions. 494 */ 495 inp->name = Isize; 496 inp->flags = CLU_CASE_SENSITIVE; /* doesn't really matter for BSD */ 497 /* This is safe because we preallocated len+1 extra. */ 498 STRCPY(name, nm, len); /* increments Isize */ 499 500 error = coda_call(mdp, Isize, &Osize, (char *)inp); 501 KASSERT(outp != NULL); 502 if (!error) { 503 *VFid = outp->Fid; 504 *vtype = outp->vtype; 505 } 506 507 CODA_FREE(inp, coda_lookup_size); 508 return error; 509 } 510 511 int 512 venus_create(void *mdp, CodaFid *fid, 513 const char *nm, int len, int exclusive, int mode, struct vattr *va, 514 struct ucred *cred, struct lwp *l, 515 /*out*/ CodaFid *VFid, struct vattr *attr) 516 { 517 DECL(coda_create); /* sets Isize & Osize */ 518 coda_create_size += len + 1; 519 ALLOC(coda_create); /* sets inp & outp */ 520 521 /* send the open to venus. */ 522 INIT_IN_L(&inp->ih, CODA_CREATE, cred, l); 523 inp->Fid = *fid; 524 inp->excl = exclusive ? C_O_EXCL : 0; 525 inp->mode = mode<<6; 526 CNV_V2VV_ATTR(&inp->attr, va); 527 528 inp->name = Isize; 529 STRCPY(name, nm, len); /* increments Isize */ 530 531 error = coda_call(mdp, Isize, &Osize, (char *)inp); 532 KASSERT(outp != NULL); 533 if (!error) { 534 *VFid = outp->Fid; 535 CNV_VV2V_ATTR(attr, &outp->attr); 536 } 537 538 CODA_FREE(inp, coda_create_size); 539 return error; 540 } 541 542 int 543 venus_remove(void *mdp, CodaFid *fid, 544 const char *nm, int len, 545 struct ucred *cred, struct lwp *l) 546 { 547 DECL_NO_OUT(coda_remove); /* sets Isize & Osize */ 548 coda_remove_size += len + 1; 549 ALLOC_NO_OUT(coda_remove); /* sets inp & outp */ 550 551 /* send the open to venus. */ 552 INIT_IN_L(&inp->ih, CODA_REMOVE, cred, l); 553 inp->Fid = *fid; 554 555 inp->name = Isize; 556 STRCPY(name, nm, len); /* increments Isize */ 557 558 error = coda_call(mdp, Isize, &Osize, (char *)inp); 559 560 CODA_FREE(inp, coda_remove_size); 561 return error; 562 } 563 564 int 565 venus_link(void *mdp, CodaFid *fid, CodaFid *tfid, 566 const char *nm, int len, 567 struct ucred *cred, struct lwp *l) 568 { 569 DECL_NO_OUT(coda_link); /* sets Isize & Osize */ 570 coda_link_size += len + 1; 571 ALLOC_NO_OUT(coda_link); /* sets inp & outp */ 572 573 /* send the open to venus. */ 574 INIT_IN_L(&inp->ih, CODA_LINK, cred, l); 575 inp->sourceFid = *fid; 576 inp->destFid = *tfid; 577 578 inp->tname = Isize; 579 STRCPY(tname, nm, len); /* increments Isize */ 580 581 error = coda_call(mdp, Isize, &Osize, (char *)inp); 582 583 CODA_FREE(inp, coda_link_size); 584 return error; 585 } 586 587 int 588 venus_rename(void *mdp, CodaFid *fid, CodaFid *tfid, 589 const char *nm, int len, const char *tnm, int tlen, 590 struct ucred *cred, struct lwp *l) 591 { 592 DECL_NO_OUT(coda_rename); /* sets Isize & Osize */ 593 coda_rename_size += len + 1 + tlen + 1; 594 ALLOC_NO_OUT(coda_rename); /* sets inp & outp */ 595 596 /* send the open to venus. */ 597 INIT_IN_L(&inp->ih, CODA_RENAME, cred, l); 598 inp->sourceFid = *fid; 599 inp->destFid = *tfid; 600 601 inp->srcname = Isize; 602 STRCPY(srcname, nm, len); /* increments Isize */ 603 604 inp->destname = Isize; 605 STRCPY(destname, tnm, tlen); /* increments Isize */ 606 607 error = coda_call(mdp, Isize, &Osize, (char *)inp); 608 609 CODA_FREE(inp, coda_rename_size); 610 return error; 611 } 612 613 int 614 venus_mkdir(void *mdp, CodaFid *fid, 615 const char *nm, int len, struct vattr *va, 616 struct ucred *cred, struct lwp *l, 617 /*out*/ CodaFid *VFid, struct vattr *ova) 618 { 619 DECL(coda_mkdir); /* sets Isize & Osize */ 620 coda_mkdir_size += len + 1; 621 ALLOC(coda_mkdir); /* sets inp & outp */ 622 623 /* send the open to venus. */ 624 INIT_IN_L(&inp->ih, CODA_MKDIR, cred, l); 625 inp->Fid = *fid; 626 CNV_V2VV_ATTR(&inp->attr, va); 627 628 inp->name = Isize; 629 STRCPY(name, nm, len); /* increments Isize */ 630 631 error = coda_call(mdp, Isize, &Osize, (char *)inp); 632 KASSERT(outp != NULL); 633 if (!error) { 634 *VFid = outp->Fid; 635 CNV_VV2V_ATTR(ova, &outp->attr); 636 } 637 638 CODA_FREE(inp, coda_mkdir_size); 639 return error; 640 } 641 642 int 643 venus_rmdir(void *mdp, CodaFid *fid, 644 const char *nm, int len, 645 struct ucred *cred, struct lwp *l) 646 { 647 DECL_NO_OUT(coda_rmdir); /* sets Isize & Osize */ 648 coda_rmdir_size += len + 1; 649 ALLOC_NO_OUT(coda_rmdir); /* sets inp & outp */ 650 651 /* send the open to venus. */ 652 INIT_IN_L(&inp->ih, CODA_RMDIR, cred, l); 653 inp->Fid = *fid; 654 655 inp->name = Isize; 656 STRCPY(name, nm, len); /* increments Isize */ 657 658 error = coda_call(mdp, Isize, &Osize, (char *)inp); 659 660 CODA_FREE(inp, coda_rmdir_size); 661 return error; 662 } 663 664 int 665 venus_symlink(void *mdp, CodaFid *fid, 666 const char *lnm, int llen, const char *nm, int len, struct vattr *va, 667 struct ucred *cred, struct lwp *l) 668 { 669 DECL_NO_OUT(coda_symlink); /* sets Isize & Osize */ 670 coda_symlink_size += llen + 1 + len + 1; 671 ALLOC_NO_OUT(coda_symlink); /* sets inp & outp */ 672 673 /* send the open to venus. */ 674 INIT_IN_L(&inp->ih, CODA_SYMLINK, cred, l); 675 inp->Fid = *fid; 676 CNV_V2VV_ATTR(&inp->attr, va); 677 678 inp->srcname = Isize; 679 STRCPY(srcname, lnm, llen); /* increments Isize */ 680 681 inp->tname = Isize; 682 STRCPY(tname, nm, len); /* increments Isize */ 683 684 error = coda_call(mdp, Isize, &Osize, (char *)inp); 685 686 CODA_FREE(inp, coda_symlink_size); 687 return error; 688 } 689 690 int 691 venus_readdir(void *mdp, CodaFid *fid, 692 int count, int offset, 693 struct ucred *cred, struct lwp *l, 694 /*out*/ char *buffer, int *len) 695 { 696 DECL(coda_readdir); /* sets Isize & Osize */ 697 coda_readdir_size = VC_MAXMSGSIZE; 698 ALLOC(coda_readdir); /* sets inp & outp */ 699 700 /* send the open to venus. */ 701 INIT_IN_L(&inp->ih, CODA_READDIR, cred, l); 702 inp->Fid = *fid; 703 inp->count = count; 704 inp->offset = offset; 705 706 Osize = VC_MAXMSGSIZE; 707 error = coda_call(mdp, Isize, &Osize, (char *)inp); 708 KASSERT(outp != NULL); 709 if (!error) { 710 bcopy((char *)outp + (int)(long)outp->data, buffer, outp->size); 711 *len = outp->size; 712 } 713 714 CODA_FREE(inp, coda_readdir_size); 715 return error; 716 } 717 718 int 719 venus_statfs(void *mdp, struct ucred *cred, struct lwp *l, 720 /*out*/ struct coda_statfs *fsp) 721 { 722 DECL(coda_statfs); /* sets Isize & Osize */ 723 ALLOC(coda_statfs); /* sets inp & outp */ 724 725 /* send the open to venus. */ 726 INIT_IN_L(&inp->ih, CODA_STATFS, cred, l); 727 728 error = coda_call(mdp, Isize, &Osize, (char *)inp); 729 KASSERT(outp != NULL); 730 if (!error) { 731 *fsp = outp->stat; 732 } 733 734 CODA_FREE(inp, coda_statfs_size); 735 return error; 736 } 737 738 int 739 venus_fhtovp(void *mdp, CodaFid *fid, 740 struct ucred *cred, struct proc *p, 741 /*out*/ CodaFid *VFid, int *vtype) 742 { 743 DECL(coda_vget); /* sets Isize & Osize */ 744 ALLOC(coda_vget); /* sets inp & outp */ 745 746 /* Send the open to Venus. */ 747 INIT_IN(&inp->ih, CODA_VGET, cred, p); 748 inp->Fid = *fid; 749 750 error = coda_call(mdp, Isize, &Osize, (char *)inp); 751 KASSERT(outp != NULL); 752 if (!error) { 753 *VFid = outp->Fid; 754 *vtype = outp->vtype; 755 } 756 757 CODA_FREE(inp, coda_vget_size); 758 return error; 759 } 760
Indexes created Fri Sep 26 08:10:20 GMT 2025