coda_venus.c revision 1.28
1 /* $NetBSD: coda_venus.c,v 1.28 2010/07/20 17:26:03 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 1.28 2010/07/20 17:26:03 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 coda_kernel_version = CODA_KERNEL_VERSION; 205 206 int 207 venus_root(void *mdp, 208 kauth_cred_t cred, struct proc *p, 209 /*out*/ CodaFid *VFid) 210 { 211 DECL_NO_IN(coda_root); /* sets Isize & Osize */ 212 ALLOC_NO_IN(coda_root); /* sets inp & outp */ 213 214 /* send the open to venus. */ 215 INIT_IN(inp, CODA_ROOT, cred, p); 216 217 error = coda_call(mdp, Isize, &Osize, (char *)inp); 218 if (!error) 219 *VFid = outp->Fid; 220 221 CODA_FREE(inp, coda_root_size); 222 return error; 223 } 224 225 int 226 venus_open(void *mdp, CodaFid *fid, int flag, 227 kauth_cred_t cred, struct lwp *l, 228 /*out*/ dev_t *dev, ino_t *inode) 229 { 230 int cflag; 231 DECL(coda_open); /* sets Isize & Osize */ 232 ALLOC(coda_open); /* sets inp & outp */ 233 234 /* send the open to venus. */ 235 INIT_IN_L(&inp->ih, CODA_OPEN, cred, l); 236 inp->Fid = *fid; 237 CNV_OFLAG(cflag, flag); 238 inp->flags = cflag; 239 240 error = coda_call(mdp, Isize, &Osize, (char *)inp); 241 KASSERT(outp != NULL); 242 if (!error) { 243 *dev = outp->dev; 244 *inode = outp->inode; 245 } 246 247 CODA_FREE(inp, coda_open_size); 248 return error; 249 } 250 251 int 252 venus_close(void *mdp, CodaFid *fid, int flag, 253 kauth_cred_t cred, struct lwp *l) 254 { 255 int cflag; 256 DECL_NO_OUT(coda_close); /* sets Isize & Osize */ 257 ALLOC_NO_OUT(coda_close); /* sets inp & outp */ 258 259 INIT_IN_L(&inp->ih, CODA_CLOSE, cred, l); 260 inp->Fid = *fid; 261 CNV_OFLAG(cflag, flag); 262 inp->flags = cflag; 263 264 error = coda_call(mdp, Isize, &Osize, (char *)inp); 265 266 CODA_FREE(inp, coda_close_size); 267 return error; 268 } 269 270 /* 271 * these two calls will not exist!!! the container file is read/written 272 * directly. 273 */ 274 void 275 venus_read(void) 276 { 277 } 278 279 void 280 venus_write(void) 281 { 282 } 283 284 /* 285 * this is a bit sad too. the ioctl's are for the control file, not for 286 * normal files. 287 */ 288 int 289 venus_ioctl(void *mdp, CodaFid *fid, 290 int com, int flag, void *data, 291 kauth_cred_t cred, struct lwp *l) 292 { 293 DECL(coda_ioctl); /* sets Isize & Osize */ 294 struct PioctlData *iap = (struct PioctlData *)data; 295 int tmp; 296 297 coda_ioctl_size = VC_MAXMSGSIZE; 298 ALLOC(coda_ioctl); /* sets inp & outp */ 299 300 INIT_IN_L(&inp->ih, CODA_IOCTL, cred, l); 301 inp->Fid = *fid; 302 303 /* command was mutated by increasing its size field to reflect the 304 * path and follow args. we need to subtract that out before sending 305 * the command to venus. 306 */ 307 inp->cmd = (com & ~(IOCPARM_MASK << 16)); 308 tmp = ((com >> 16) & IOCPARM_MASK) - sizeof (char *) - sizeof (int); 309 inp->cmd |= (tmp & IOCPARM_MASK) << 16; 310 311 if (iap->vi.in_size > VC_MAXMSGSIZE || iap->vi.out_size > VC_MAXMSGSIZE) { 312 CODA_FREE(inp, coda_ioctl_size); 313 return (EINVAL); 314 } 315 316 inp->rwflag = flag; 317 inp->len = iap->vi.in_size; 318 inp->data = (char *)(sizeof (struct coda_ioctl_in)); 319 320 error = copyin(iap->vi.in, (char*)inp + (int)(long)inp->data, 321 iap->vi.in_size); 322 if (error) { 323 CODA_FREE(inp, coda_ioctl_size); 324 return(error); 325 } 326 327 Osize = VC_MAXMSGSIZE; 328 error = coda_call(mdp, Isize + iap->vi.in_size, &Osize, (char *)inp); 329 330 /* copy out the out buffer. */ 331 if (!error) { 332 if (outp->len > iap->vi.out_size) { 333 error = EINVAL; 334 } else { 335 error = copyout((char *)outp + (int)(long)outp->data, 336 iap->vi.out, iap->vi.out_size); 337 } 338 } 339 340 CODA_FREE(inp, coda_ioctl_size); 341 return error; 342 } 343 344 int 345 venus_getattr(void *mdp, CodaFid *fid, 346 kauth_cred_t cred, struct lwp *l, 347 /*out*/ struct vattr *vap) 348 { 349 DECL(coda_getattr); /* sets Isize & Osize */ 350 ALLOC(coda_getattr); /* sets inp & outp */ 351 352 /* send the open to venus. */ 353 INIT_IN_L(&inp->ih, CODA_GETATTR, cred, l); 354 inp->Fid = *fid; 355 356 error = coda_call(mdp, Isize, &Osize, (char *)inp); 357 if (!error) { 358 CNV_VV2V_ATTR(vap, &outp->attr); 359 } 360 361 CODA_FREE(inp, coda_getattr_size); 362 return error; 363 } 364 365 int 366 venus_setattr(void *mdp, CodaFid *fid, struct vattr *vap, 367 kauth_cred_t cred, struct lwp *l) 368 { 369 DECL_NO_OUT(coda_setattr); /* sets Isize & Osize */ 370 ALLOC_NO_OUT(coda_setattr); /* sets inp & outp */ 371 372 /* send the open to venus. */ 373 INIT_IN_L(&inp->ih, CODA_SETATTR, cred, l); 374 inp->Fid = *fid; 375 CNV_V2VV_ATTR(&inp->attr, vap); 376 377 error = coda_call(mdp, Isize, &Osize, (char *)inp); 378 379 CODA_FREE(inp, coda_setattr_size); 380 return error; 381 } 382 383 int 384 venus_access(void *mdp, CodaFid *fid, int mode, 385 kauth_cred_t cred, struct lwp *l) 386 { 387 DECL_NO_OUT(coda_access); /* sets Isize & Osize */ 388 ALLOC_NO_OUT(coda_access); /* sets inp & outp */ 389 390 /* send the open to venus. */ 391 INIT_IN_L(&inp->ih, CODA_ACCESS, cred, l); 392 inp->Fid = *fid; 393 inp->flags = mode; 394 395 error = coda_call(mdp, Isize, &Osize, (char *)inp); 396 397 CODA_FREE(inp, coda_access_size); 398 return error; 399 } 400 401 int 402 venus_readlink(void *mdp, CodaFid *fid, 403 kauth_cred_t cred, struct lwp *l, 404 /*out*/ char **str, int *len) 405 { 406 DECL(coda_readlink); /* sets Isize & Osize */ 407 /* XXX coda_readlink_size should not be set here */ 408 coda_readlink_size += CODA_MAXPATHLEN; 409 Osize += CODA_MAXPATHLEN; 410 ALLOC(coda_readlink); /* sets inp & outp */ 411 412 /* send the open to venus. */ 413 INIT_IN_L(&inp->ih, CODA_READLINK, cred, l); 414 inp->Fid = *fid; 415 416 error = coda_call(mdp, Isize, &Osize, (char *)inp); 417 KASSERT(outp != NULL); 418 if (error != 0) 419 goto out; 420 421 /* Check count for reasonableness */ 422 if (outp->count <= 0 || outp->count > CODA_MAXPATHLEN) { 423 printf("venus_readlink: bad count %d\n", outp->count); 424 error = EINVAL; 425 goto out; 426 } 427 428 /* 429 * Check data pointer for reasonableness. It must point after 430 * itself, and within the allocated region. 431 */ 432 if ((intptr_t) outp->data < sizeof(struct coda_readlink_out) ) { 433 printf("venus_readlink: data pointer %lld too low\n", 434 (long long)((intptr_t) outp->data)); 435 error = EINVAL; 436 goto out; 437 } 438 439 if ((intptr_t) outp->data + outp->count > 440 sizeof(struct coda_readlink_out) + CODA_MAXPATHLEN) { 441 printf("venus_readlink: data pointer %lld too high\n", 442 (long long)((intptr_t) outp->data)); 443 error = EINVAL; 444 goto out; 445 } 446 447 if (!error) { 448 CODA_ALLOC(*str, char *, outp->count); 449 *len = outp->count; 450 memcpy(*str, (char *)outp + (int)(long)outp->data, *len); 451 } 452 453 out: 454 CODA_FREE(inp, coda_readlink_size); 455 return error; 456 } 457 458 int 459 venus_fsync(void *mdp, CodaFid *fid, 460 kauth_cred_t cred, struct lwp *l) 461 { 462 DECL_NO_OUT(coda_fsync); /* sets Isize & Osize */ 463 ALLOC_NO_OUT(coda_fsync); /* sets inp & outp */ 464 465 /* send the open to venus. */ 466 INIT_IN_L(&inp->ih, CODA_FSYNC, cred, l); 467 inp->Fid = *fid; 468 469 error = coda_call(mdp, Isize, &Osize, (char *)inp); 470 471 CODA_FREE(inp, coda_fsync_size); 472 return error; 473 } 474 475 int 476 venus_lookup(void *mdp, CodaFid *fid, 477 const char *nm, int len, 478 kauth_cred_t cred, struct lwp *l, 479 /*out*/ CodaFid *VFid, int *vtype) 480 { 481 DECL(coda_lookup); /* sets Isize & Osize */ 482 coda_lookup_size += len + 1; 483 ALLOC(coda_lookup); /* sets inp & outp */ 484 485 /* send the open to venus. */ 486 INIT_IN_L(&inp->ih, CODA_LOOKUP, cred, l); 487 inp->Fid = *fid; 488 489 /* NOTE: 490 * Between version 1 and version 2 we have added an extra flag field 491 * to this structure. But because the string was at the end and because 492 * of the weird way we represent strings by having the slot point to 493 * where the string characters are in the "heap", we can just slip the 494 * flag parameter in after the string slot pointer and veni that don't 495 * know better won't see this new flag field ... 496 * Otherwise we'd need two different venus_lookup functions. 497 */ 498 inp->name = Isize; 499 inp->flags = CLU_CASE_SENSITIVE; /* doesn't really matter for BSD */ 500 /* This is safe because we preallocated len+1 extra. */ 501 STRCPY(name, nm, len); /* increments Isize */ 502 503 error = coda_call(mdp, Isize, &Osize, (char *)inp); 504 KASSERT(outp != NULL); 505 if (!error) { 506 *VFid = outp->Fid; 507 *vtype = outp->vtype; 508 } 509 510 CODA_FREE(inp, coda_lookup_size); 511 return error; 512 } 513 514 int 515 venus_create(void *mdp, CodaFid *fid, 516 const char *nm, int len, int exclusive, int mode, struct vattr *va, 517 kauth_cred_t cred, struct lwp *l, 518 /*out*/ CodaFid *VFid, struct vattr *attr) 519 { 520 DECL(coda_create); /* sets Isize & Osize */ 521 coda_create_size += len + 1; 522 ALLOC(coda_create); /* sets inp & outp */ 523 524 /* send the open to venus. */ 525 INIT_IN_L(&inp->ih, CODA_CREATE, cred, l); 526 inp->Fid = *fid; 527 inp->excl = exclusive ? C_O_EXCL : 0; 528 inp->mode = mode<<6; 529 CNV_V2VV_ATTR(&inp->attr, va); 530 531 inp->name = Isize; 532 STRCPY(name, nm, len); /* increments Isize */ 533 534 error = coda_call(mdp, Isize, &Osize, (char *)inp); 535 KASSERT(outp != NULL); 536 if (!error) { 537 *VFid = outp->Fid; 538 CNV_VV2V_ATTR(attr, &outp->attr); 539 } 540 541 CODA_FREE(inp, coda_create_size); 542 return error; 543 } 544 545 int 546 venus_remove(void *mdp, CodaFid *fid, 547 const char *nm, int len, 548 kauth_cred_t cred, struct lwp *l) 549 { 550 DECL_NO_OUT(coda_remove); /* sets Isize & Osize */ 551 coda_remove_size += len + 1; 552 ALLOC_NO_OUT(coda_remove); /* sets inp & outp */ 553 554 /* send the open to venus. */ 555 INIT_IN_L(&inp->ih, CODA_REMOVE, cred, l); 556 inp->Fid = *fid; 557 558 inp->name = Isize; 559 STRCPY(name, nm, len); /* increments Isize */ 560 561 error = coda_call(mdp, Isize, &Osize, (char *)inp); 562 563 CODA_FREE(inp, coda_remove_size); 564 return error; 565 } 566 567 int 568 venus_link(void *mdp, CodaFid *fid, CodaFid *tfid, 569 const char *nm, int len, 570 kauth_cred_t cred, struct lwp *l) 571 { 572 DECL_NO_OUT(coda_link); /* sets Isize & Osize */ 573 coda_link_size += len + 1; 574 ALLOC_NO_OUT(coda_link); /* sets inp & outp */ 575 576 /* send the open to venus. */ 577 INIT_IN_L(&inp->ih, CODA_LINK, cred, l); 578 inp->sourceFid = *fid; 579 inp->destFid = *tfid; 580 581 inp->tname = Isize; 582 STRCPY(tname, nm, len); /* increments Isize */ 583 584 error = coda_call(mdp, Isize, &Osize, (char *)inp); 585 586 CODA_FREE(inp, coda_link_size); 587 return error; 588 } 589 590 int 591 venus_rename(void *mdp, CodaFid *fid, CodaFid *tfid, 592 const char *nm, int len, const char *tnm, int tlen, 593 kauth_cred_t cred, struct lwp *l) 594 { 595 DECL_NO_OUT(coda_rename); /* sets Isize & Osize */ 596 coda_rename_size += len + 1 + tlen + 1; 597 ALLOC_NO_OUT(coda_rename); /* sets inp & outp */ 598 599 /* send the open to venus. */ 600 INIT_IN_L(&inp->ih, CODA_RENAME, cred, l); 601 inp->sourceFid = *fid; 602 inp->destFid = *tfid; 603 604 inp->srcname = Isize; 605 STRCPY(srcname, nm, len); /* increments Isize */ 606 607 inp->destname = Isize; 608 STRCPY(destname, tnm, tlen); /* increments Isize */ 609 610 error = coda_call(mdp, Isize, &Osize, (char *)inp); 611 612 CODA_FREE(inp, coda_rename_size); 613 return error; 614 } 615 616 int 617 venus_mkdir(void *mdp, CodaFid *fid, 618 const char *nm, int len, struct vattr *va, 619 kauth_cred_t cred, struct lwp *l, 620 /*out*/ CodaFid *VFid, struct vattr *ova) 621 { 622 DECL(coda_mkdir); /* sets Isize & Osize */ 623 coda_mkdir_size += len + 1; 624 ALLOC(coda_mkdir); /* sets inp & outp */ 625 626 /* send the open to venus. */ 627 INIT_IN_L(&inp->ih, CODA_MKDIR, cred, l); 628 inp->Fid = *fid; 629 CNV_V2VV_ATTR(&inp->attr, va); 630 631 inp->name = Isize; 632 STRCPY(name, nm, len); /* increments Isize */ 633 634 error = coda_call(mdp, Isize, &Osize, (char *)inp); 635 KASSERT(outp != NULL); 636 if (!error) { 637 *VFid = outp->Fid; 638 CNV_VV2V_ATTR(ova, &outp->attr); 639 } 640 641 CODA_FREE(inp, coda_mkdir_size); 642 return error; 643 } 644 645 int 646 venus_rmdir(void *mdp, CodaFid *fid, 647 const char *nm, int len, 648 kauth_cred_t cred, struct lwp *l) 649 { 650 DECL_NO_OUT(coda_rmdir); /* sets Isize & Osize */ 651 coda_rmdir_size += len + 1; 652 ALLOC_NO_OUT(coda_rmdir); /* sets inp & outp */ 653 654 /* send the open to venus. */ 655 INIT_IN_L(&inp->ih, CODA_RMDIR, cred, l); 656 inp->Fid = *fid; 657 658 inp->name = Isize; 659 STRCPY(name, nm, len); /* increments Isize */ 660 661 error = coda_call(mdp, Isize, &Osize, (char *)inp); 662 663 CODA_FREE(inp, coda_rmdir_size); 664 return error; 665 } 666 667 int 668 venus_symlink(void *mdp, CodaFid *fid, 669 const char *lnm, int llen, const char *nm, int len, struct vattr *va, 670 kauth_cred_t cred, struct lwp *l) 671 { 672 DECL_NO_OUT(coda_symlink); /* sets Isize & Osize */ 673 coda_symlink_size += llen + 1 + len + 1; 674 ALLOC_NO_OUT(coda_symlink); /* sets inp & outp */ 675 676 /* send the open to venus. */ 677 INIT_IN_L(&inp->ih, CODA_SYMLINK, cred, l); 678 inp->Fid = *fid; 679 CNV_V2VV_ATTR(&inp->attr, va); 680 681 inp->srcname = Isize; 682 STRCPY(srcname, lnm, llen); /* increments Isize */ 683 684 inp->tname = Isize; 685 STRCPY(tname, nm, len); /* increments Isize */ 686 687 error = coda_call(mdp, Isize, &Osize, (char *)inp); 688 689 CODA_FREE(inp, coda_symlink_size); 690 return error; 691 } 692 693 int 694 venus_readdir(void *mdp, CodaFid *fid, 695 int count, int offset, 696 kauth_cred_t cred, struct lwp *l, 697 /*out*/ char *buffer, int *len) 698 { 699 DECL(coda_readdir); /* sets Isize & Osize */ 700 coda_readdir_size = VC_MAXMSGSIZE; 701 ALLOC(coda_readdir); /* sets inp & outp */ 702 703 /* send the open to venus. */ 704 INIT_IN_L(&inp->ih, CODA_READDIR, cred, l); 705 inp->Fid = *fid; 706 inp->count = count; 707 inp->offset = offset; 708 709 Osize = VC_MAXMSGSIZE; 710 error = coda_call(mdp, Isize, &Osize, (char *)inp); 711 KASSERT(outp != NULL); 712 if (!error) { 713 memcpy(buffer, (char *)outp + (int)(long)outp->data, outp->size); 714 *len = outp->size; 715 } 716 717 CODA_FREE(inp, coda_readdir_size); 718 return error; 719 } 720 721 int 722 venus_statfs(void *mdp, kauth_cred_t cred, struct lwp *l, 723 /*out*/ struct coda_statfs *fsp) 724 { 725 DECL(coda_statfs); /* sets Isize & Osize */ 726 ALLOC(coda_statfs); /* sets inp & outp */ 727 728 /* send the open to venus. */ 729 INIT_IN_L(&inp->ih, CODA_STATFS, cred, l); 730 731 error = coda_call(mdp, Isize, &Osize, (char *)inp); 732 KASSERT(outp != NULL); 733 if (!error) { 734 *fsp = outp->stat; 735 } 736 737 CODA_FREE(inp, coda_statfs_size); 738 return error; 739 } 740 741 int 742 venus_fhtovp(void *mdp, CodaFid *fid, 743 kauth_cred_t cred, struct proc *p, 744 /*out*/ CodaFid *VFid, int *vtype) 745 { 746 DECL(coda_vget); /* sets Isize & Osize */ 747 ALLOC(coda_vget); /* sets inp & outp */ 748 749 /* Send the open to Venus. */ 750 INIT_IN(&inp->ih, CODA_VGET, cred, p); 751 inp->Fid = *fid; 752 753 error = coda_call(mdp, Isize, &Osize, (char *)inp); 754 KASSERT(outp != NULL); 755 if (!error) { 756 *VFid = outp->Fid; 757 *vtype = outp->vtype; 758 } 759 760 CODA_FREE(inp, coda_vget_size); 761 return error; 762 } 763
Indexes created Sun Sep 28 12:09:53 GMT 2025