1 /* $NetBSD: coda_venus.c,v 1.31 2024/05/17 23:57:46 thorpej 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 1.31 2024/05/17 23:57:46 thorpej Exp $"); 36 37 #include <sys/param.h> 38 #include <sys/systm.h> 39 #include <sys/proc.h> 40 #include <sys/select.h> 41 #include <sys/ioctl.h> 42 /* for CNV_OFLAGS below */ 43 #include <sys/fcntl.h> 44 #include <sys/kauth.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 int name ## _size = sizeof (struct name ## _in); \ 82 int Isize = sizeof (struct name ## _in); \ 83 int Osize = sizeof (struct coda_out_hdr); \ 84 int error 85 86 #define ALLOC_NO_IN(name) \ 87 if (Osize > name ## _size) \ 88 name ## _size = Osize; \ 89 CODA_ALLOC(inp, struct coda_in_hdr *, name ## _size);\ 90 outp = (struct name ## _out *) inp 91 92 #define ALLOC(name) \ 93 if (Osize > name ## _size) \ 94 name ## _size = Osize; \ 95 CODA_ALLOC(inp, struct name ## _in *, name ## _size);\ 96 outp = (struct name ## _out *) inp 97 98 #define ALLOC_NO_OUT(name) \ 99 if (Osize > name ## _size) \ 100 name ## _size = Osize; \ 101 CODA_ALLOC(inp, struct name ## _in *, name ## _size);\ 102 103 #define STRCPY(struc, name, len) \ 104 memcpy((char *)inp + (int)inp->struc, name, len); \ 105 ((char*)inp + (int)inp->struc)[len++] = 0; \ 106 Isize += len 107 /* XXX verify that Isize has not overrun available storage */ 108 109 #ifdef CODA_COMPAT_5 110 111 #define INIT_IN(in, op, ident, p) \ 112 (in)->opcode = (op); \ 113 (in)->pid = p ? p->p_pid : -1; \ 114 (in)->pgid = p ? p->p_pgid : -1; \ 115 (in)->sid = (p && p->p_session && p->p_session->s_leader) ? \ 116 (p->p_session->s_leader->p_pid) : -1; \ 117 KASSERT(cred != NULL); \ 118 KASSERT(cred != FSCRED); \ 119 if (ident != NOCRED) { \ 120 (in)->cred.cr_uid = kauth_cred_geteuid(ident); \ 121 (in)->cred.cr_groupid = kauth_cred_getegid(ident); \ 122 } else { \ 123 memset(&((in)->cred), 0, sizeof(struct coda_cred)); \ 124 (in)->cred.cr_uid = -1; \ 125 (in)->cred.cr_groupid = -1; \ 126 } \ 127 128 #else 129 130 #define INIT_IN(in, op, ident, p) \ 131 (in)->opcode = (op); \ 132 (in)->pid = p ? p->p_pid : -1; \ 133 (in)->pgid = p ? p->p_pgid : -1; \ 134 KASSERT(cred != NULL); \ 135 KASSERT(cred != FSCRED); \ 136 if (ident != NOCRED) { \ 137 (in)->uid = kauth_cred_geteuid(ident); \ 138 } else { \ 139 (in)->uid = -1; \ 140 } \ 141 142 #endif 143 144 #define INIT_IN_L(in, op, ident, l) \ 145 INIT_IN(in, op, ident, (l ? l->l_proc : NULL)) 146 147 #define CNV_OFLAG(to, from) \ 148 do { \ 149 to = 0; \ 150 if (from & FREAD) to |= C_O_READ; \ 151 if (from & FWRITE) to |= C_O_WRITE; \ 152 if (from & O_TRUNC) to |= C_O_TRUNC; \ 153 if (from & O_EXCL) to |= C_O_EXCL; \ 154 if (from & O_CREAT) to |= C_O_CREAT; \ 155 } while (/*CONSTCOND*/ 0) 156 157 #define CNV_VV2V_ATTR(top, fromp) \ 158 do { \ 159 (top)->va_type = (fromp)->va_type; \ 160 (top)->va_mode = (fromp)->va_mode; \ 161 (top)->va_nlink = (fromp)->va_nlink; \ 162 (top)->va_uid = (fromp)->va_uid; \ 163 (top)->va_gid = (fromp)->va_gid; \ 164 (top)->va_fsid = VNOVAL; \ 165 (top)->va_fileid = (fromp)->va_fileid; \ 166 (top)->va_size = (fromp)->va_size; \ 167 (top)->va_blocksize = (fromp)->va_blocksize; \ 168 (top)->va_atime = (fromp)->va_atime; \ 169 (top)->va_mtime = (fromp)->va_mtime; \ 170 (top)->va_ctime = (fromp)->va_ctime; \ 171 (top)->va_gen = (fromp)->va_gen; \ 172 (top)->va_flags = (fromp)->va_flags; \ 173 (top)->va_rdev = (fromp)->va_rdev; \ 174 (top)->va_bytes = (fromp)->va_bytes; \ 175 (top)->va_filerev = (fromp)->va_filerev; \ 176 (top)->va_vaflags = VNOVAL; \ 177 (top)->va_spare = VNOVAL; \ 178 } while (/*CONSTCOND*/ 0) 179 180 #define CNV_V2VV_ATTR(top, fromp) \ 181 do { \ 182 (top)->va_type = (fromp)->va_type; \ 183 (top)->va_mode = (fromp)->va_mode; \ 184 (top)->va_nlink = (fromp)->va_nlink; \ 185 (top)->va_uid = (fromp)->va_uid; \ 186 (top)->va_gid = (fromp)->va_gid; \ 187 (top)->va_fileid = (fromp)->va_fileid; \ 188 (top)->va_size = (fromp)->va_size; \ 189 (top)->va_blocksize = (fromp)->va_blocksize; \ 190 (top)->va_atime = (fromp)->va_atime; \ 191 (top)->va_mtime = (fromp)->va_mtime; \ 192 (top)->va_ctime = (fromp)->va_ctime; \ 193 (top)->va_gen = (fromp)->va_gen; \ 194 (top)->va_flags = (fromp)->va_flags; \ 195 (top)->va_rdev = (fromp)->va_rdev; \ 196 (top)->va_bytes = (fromp)->va_bytes; \ 197 (top)->va_filerev = (fromp)->va_filerev; \ 198 } while (/*CONSTCOND*/ 0) 199 200 201 int 202 venus_root(void *mdp, 203 kauth_cred_t cred, struct proc *p, 204 /*out*/ CodaFid *VFid) 205 { 206 DECL_NO_IN(coda_root); /* sets Isize & Osize */ 207 ALLOC_NO_IN(coda_root); /* sets inp & outp */ 208 209 /* send the open to venus. */ 210 INIT_IN(inp, CODA_ROOT, cred, p); 211 212 error = coda_call(mdp, Isize, &Osize, (char *)inp); 213 if (!error) 214 *VFid = outp->Fid; 215 216 CODA_FREE(inp, coda_root_size); 217 return error; 218 } 219 220 int 221 venus_open(void *mdp, CodaFid *fid, int flag, 222 kauth_cred_t cred, struct lwp *l, 223 /*out*/ dev_t *dev, ino_t *inode) 224 { 225 int cflag; 226 DECL(coda_open); /* sets Isize & Osize */ 227 ALLOC(coda_open); /* sets inp & outp */ 228 229 /* send the open to venus. */ 230 INIT_IN_L(&inp->ih, CODA_OPEN, cred, l); 231 inp->Fid = *fid; 232 CNV_OFLAG(cflag, flag); 233 inp->flags = cflag; 234 235 error = coda_call(mdp, Isize, &Osize, (char *)inp); 236 KASSERT(outp != NULL); 237 if (!error) { 238 *dev = outp->dev; 239 *inode = outp->inode; 240 } 241 242 CODA_FREE(inp, coda_open_size); 243 return error; 244 } 245 246 int 247 venus_close(void *mdp, CodaFid *fid, int flag, 248 kauth_cred_t cred, struct lwp *l) 249 { 250 int cflag; 251 DECL_NO_OUT(coda_close); /* sets Isize & Osize */ 252 ALLOC_NO_OUT(coda_close); /* sets inp & outp */ 253 254 INIT_IN_L(&inp->ih, CODA_CLOSE, cred, l); 255 inp->Fid = *fid; 256 CNV_OFLAG(cflag, flag); 257 inp->flags = cflag; 258 259 error = coda_call(mdp, Isize, &Osize, (char *)inp); 260 261 CODA_FREE(inp, coda_close_size); 262 return error; 263 } 264 265 /* 266 * these two calls will not exist!!! the container file is read/written 267 * directly. 268 */ 269 void 270 venus_read(void) 271 { 272 } 273 274 void 275 venus_write(void) 276 { 277 } 278 279 /* 280 * this is a bit sad too. the ioctl's are for the control file, not for 281 * normal files. 282 */ 283 int 284 venus_ioctl(void *mdp, CodaFid *fid, 285 int com, int flag, void *data, 286 kauth_cred_t cred, struct lwp *l) 287 { 288 DECL(coda_ioctl); /* sets Isize & Osize */ 289 struct PioctlData *iap = (struct PioctlData *)data; 290 int tmp; 291 292 coda_ioctl_size = VC_MAXMSGSIZE; 293 ALLOC(coda_ioctl); /* sets inp & outp */ 294 295 INIT_IN_L(&inp->ih, CODA_IOCTL, cred, l); 296 inp->Fid = *fid; 297 298 /* command was mutated by increasing its size field to reflect the 299 * path and follow args. we need to subtract that out before sending 300 * the command to venus. 301 */ 302 inp->cmd = (com & ~(IOCPARM_MASK << 16)); 303 tmp = ((com >> 16) & IOCPARM_MASK) - sizeof (char *) - sizeof (int); 304 inp->cmd |= (tmp & IOCPARM_MASK) << 16; 305 306 if (iap->vi.in_size > VC_MAXMSGSIZE || iap->vi.out_size > VC_MAXMSGSIZE) { 307 CODA_FREE(inp, coda_ioctl_size); 308 return (EINVAL); 309 } 310 311 inp->rwflag = flag; 312 inp->len = iap->vi.in_size; 313 inp->data = (char *)(sizeof (struct coda_ioctl_in)); 314 315 error = copyin(iap->vi.in, (char*)inp + (int)(long)inp->data, 316 iap->vi.in_size); 317 if (error) { 318 CODA_FREE(inp, coda_ioctl_size); 319 return(error); 320 } 321 322 Osize = VC_MAXMSGSIZE; 323 error = coda_call(mdp, Isize + iap->vi.in_size, &Osize, (char *)inp); 324 325 /* copy out the out buffer. */ 326 if (!error) { 327 if (outp->len > iap->vi.out_size) { 328 error = EINVAL; 329 } else { 330 error = copyout((char *)outp + (int)(long)outp->data, 331 iap->vi.out, iap->vi.out_size); 332 } 333 } 334 335 CODA_FREE(inp, coda_ioctl_size); 336 return error; 337 } 338 339 int 340 venus_getattr(void *mdp, CodaFid *fid, 341 kauth_cred_t cred, struct lwp *l, 342 /*out*/ struct vattr *vap) 343 { 344 DECL(coda_getattr); /* sets Isize & Osize */ 345 ALLOC(coda_getattr); /* sets inp & outp */ 346 347 /* send the open to venus. */ 348 INIT_IN_L(&inp->ih, CODA_GETATTR, cred, l); 349 inp->Fid = *fid; 350 351 error = coda_call(mdp, Isize, &Osize, (char *)inp); 352 if (!error) { 353 CNV_VV2V_ATTR(vap, &outp->attr); 354 } 355 356 CODA_FREE(inp, coda_getattr_size); 357 return error; 358 } 359 360 int 361 venus_setattr(void *mdp, CodaFid *fid, struct vattr *vap, 362 kauth_cred_t cred, struct lwp *l) 363 { 364 DECL_NO_OUT(coda_setattr); /* sets Isize & Osize */ 365 ALLOC_NO_OUT(coda_setattr); /* sets inp & outp */ 366 367 /* send the open to venus. */ 368 INIT_IN_L(&inp->ih, CODA_SETATTR, cred, l); 369 inp->Fid = *fid; 370 CNV_V2VV_ATTR(&inp->attr, vap); 371 372 error = coda_call(mdp, Isize, &Osize, (char *)inp); 373 374 CODA_FREE(inp, coda_setattr_size); 375 return error; 376 } 377 378 int 379 venus_access(void *mdp, CodaFid *fid, int mode, 380 kauth_cred_t cred, struct lwp *l) 381 { 382 DECL_NO_OUT(coda_access); /* sets Isize & Osize */ 383 ALLOC_NO_OUT(coda_access); /* sets inp & outp */ 384 385 /* send the open to venus. */ 386 INIT_IN_L(&inp->ih, CODA_ACCESS, cred, l); 387 inp->Fid = *fid; 388 inp->flags = mode; 389 390 error = coda_call(mdp, Isize, &Osize, (char *)inp); 391 392 CODA_FREE(inp, coda_access_size); 393 return error; 394 } 395 396 int 397 venus_readlink(void *mdp, CodaFid *fid, 398 kauth_cred_t cred, struct lwp *l, 399 /*out*/ char **str, int *len) 400 { 401 DECL(coda_readlink); /* sets Isize & Osize */ 402 /* XXX coda_readlink_size should not be set here */ 403 coda_readlink_size += CODA_MAXPATHLEN; 404 Osize += CODA_MAXPATHLEN; 405 ALLOC(coda_readlink); /* sets inp & outp */ 406 407 /* send the open to venus. */ 408 INIT_IN_L(&inp->ih, CODA_READLINK, cred, l); 409 inp->Fid = *fid; 410 411 error = coda_call(mdp, Isize, &Osize, (char *)inp); 412 KASSERT(outp != NULL); 413 if (error != 0) 414 goto out; 415 416 /* Check count for reasonableness */ 417 if (outp->count <= 0 || outp->count > CODA_MAXPATHLEN) { 418 printf("venus_readlink: bad count %d\n", outp->count); 419 error = EINVAL; 420 goto out; 421 } 422 423 /* 424 * Check data pointer for reasonableness. It must point after 425 * itself, and within the allocated region. 426 */ 427 if ((intptr_t) outp->data < sizeof(struct coda_readlink_out) ) { 428 printf("venus_readlink: data pointer %lld too low\n", 429 (long long)((intptr_t) outp->data)); 430 error = EINVAL; 431 goto out; 432 } 433 434 if ((intptr_t) outp->data + outp->count > 435 sizeof(struct coda_readlink_out) + CODA_MAXPATHLEN) { 436 printf("venus_readlink: data pointer %lld too high\n", 437 (long long)((intptr_t) outp->data)); 438 error = EINVAL; 439 goto out; 440 } 441 442 if (!error) { 443 CODA_ALLOC(*str, char *, outp->count); 444 *len = outp->count; 445 memcpy(*str, (char *)outp + (int)(long)outp->data, *len); 446 } 447 448 out: 449 CODA_FREE(inp, coda_readlink_size); 450 return error; 451 } 452 453 int 454 venus_fsync(void *mdp, CodaFid *fid, 455 kauth_cred_t cred, struct lwp *l) 456 { 457 DECL_NO_OUT(coda_fsync); /* sets Isize & Osize */ 458 ALLOC_NO_OUT(coda_fsync); /* sets inp & outp */ 459 460 /* send the open to venus. */ 461 INIT_IN_L(&inp->ih, CODA_FSYNC, cred, l); 462 inp->Fid = *fid; 463 464 error = coda_call(mdp, Isize, &Osize, (char *)inp); 465 466 CODA_FREE(inp, coda_fsync_size); 467 return error; 468 } 469 470 int 471 venus_lookup(void *mdp, CodaFid *fid, 472 const char *nm, int len, 473 kauth_cred_t cred, struct lwp *l, 474 /*out*/ CodaFid *VFid, int *vtype) 475 { 476 DECL(coda_lookup); /* sets Isize & Osize */ 477 coda_lookup_size += len + 1; 478 ALLOC(coda_lookup); /* sets inp & outp */ 479 480 /* send the open to venus. */ 481 INIT_IN_L(&inp->ih, CODA_LOOKUP, cred, l); 482 inp->Fid = *fid; 483 484 /* NOTE: 485 * Between version 1 and version 2 we have added an extra flag field 486 * to this structure. But because the string was at the end and because 487 * of the weird way we represent strings by having the slot point to 488 * where the string characters are in the "heap", we can just slip the 489 * flag parameter in after the string slot pointer and veni that don't 490 * know better won't see this new flag field ... 491 * Otherwise we'd need two different venus_lookup functions. 492 */ 493 inp->name = Isize; 494 inp->flags = CLU_CASE_SENSITIVE; /* doesn't really matter for BSD */ 495 /* This is safe because we preallocated len+1 extra. */ 496 STRCPY(name, nm, len); /* increments Isize */ 497 498 error = coda_call(mdp, Isize, &Osize, (char *)inp); 499 KASSERT(outp != NULL); 500 if (!error) { 501 *VFid = outp->Fid; 502 *vtype = outp->vtype; 503 } 504 505 CODA_FREE(inp, coda_lookup_size); 506 return error; 507 } 508 509 int 510 venus_create(void *mdp, CodaFid *fid, 511 const char *nm, int len, int exclusive, int mode, struct vattr *va, 512 kauth_cred_t cred, struct lwp *l, 513 /*out*/ CodaFid *VFid, struct vattr *attr) 514 { 515 DECL(coda_create); /* sets Isize & Osize */ 516 coda_create_size += len + 1; 517 ALLOC(coda_create); /* sets inp & outp */ 518 519 /* send the open to venus. */ 520 INIT_IN_L(&inp->ih, CODA_CREATE, cred, l); 521 inp->Fid = *fid; 522 inp->excl = exclusive ? C_O_EXCL : 0; 523 inp->mode = mode<<6; 524 CNV_V2VV_ATTR(&inp->attr, va); 525 526 inp->name = Isize; 527 STRCPY(name, nm, len); /* increments Isize */ 528 529 error = coda_call(mdp, Isize, &Osize, (char *)inp); 530 KASSERT(outp != NULL); 531 if (!error) { 532 *VFid = outp->Fid; 533 CNV_VV2V_ATTR(attr, &outp->attr); 534 } 535 536 CODA_FREE(inp, coda_create_size); 537 return error; 538 } 539 540 int 541 venus_remove(void *mdp, CodaFid *fid, 542 const char *nm, int len, 543 kauth_cred_t cred, struct lwp *l) 544 { 545 DECL_NO_OUT(coda_remove); /* sets Isize & Osize */ 546 coda_remove_size += len + 1; 547 ALLOC_NO_OUT(coda_remove); /* sets inp & outp */ 548 549 /* send the open to venus. */ 550 INIT_IN_L(&inp->ih, CODA_REMOVE, cred, l); 551 inp->Fid = *fid; 552 553 inp->name = Isize; 554 STRCPY(name, nm, len); /* increments Isize */ 555 556 error = coda_call(mdp, Isize, &Osize, (char *)inp); 557 558 CODA_FREE(inp, coda_remove_size); 559 return error; 560 } 561 562 int 563 venus_link(void *mdp, CodaFid *fid, CodaFid *tfid, 564 const char *nm, int len, 565 kauth_cred_t cred, struct lwp *l) 566 { 567 DECL_NO_OUT(coda_link); /* sets Isize & Osize */ 568 coda_link_size += len + 1; 569 ALLOC_NO_OUT(coda_link); /* sets inp & outp */ 570 571 /* send the open to venus. */ 572 INIT_IN_L(&inp->ih, CODA_LINK, cred, l); 573 inp->sourceFid = *fid; 574 inp->destFid = *tfid; 575 576 inp->tname = Isize; 577 STRCPY(tname, nm, len); /* increments Isize */ 578 579 error = coda_call(mdp, Isize, &Osize, (char *)inp); 580 581 CODA_FREE(inp, coda_link_size); 582 return error; 583 } 584 585 int 586 venus_rename(void *mdp, CodaFid *fid, CodaFid *tfid, 587 const char *nm, int len, const char *tnm, int tlen, 588 kauth_cred_t cred, struct lwp *l) 589 { 590 DECL_NO_OUT(coda_rename); /* sets Isize & Osize */ 591 coda_rename_size += len + 1 + tlen + 1; 592 ALLOC_NO_OUT(coda_rename); /* sets inp & outp */ 593 594 /* send the open to venus. */ 595 INIT_IN_L(&inp->ih, CODA_RENAME, cred, l); 596 inp->sourceFid = *fid; 597 inp->destFid = *tfid; 598 599 inp->srcname = Isize; 600 STRCPY(srcname, nm, len); /* increments Isize */ 601 602 inp->destname = Isize; 603 STRCPY(destname, tnm, tlen); /* increments Isize */ 604 605 error = coda_call(mdp, Isize, &Osize, (char *)inp); 606 607 CODA_FREE(inp, coda_rename_size); 608 return error; 609 } 610 611 int 612 venus_mkdir(void *mdp, CodaFid *fid, 613 const char *nm, int len, struct vattr *va, 614 kauth_cred_t cred, struct lwp *l, 615 /*out*/ CodaFid *VFid, struct vattr *ova) 616 { 617 DECL(coda_mkdir); /* sets Isize & Osize */ 618 coda_mkdir_size += len + 1; 619 ALLOC(coda_mkdir); /* sets inp & outp */ 620 621 /* send the open to venus. */ 622 INIT_IN_L(&inp->ih, CODA_MKDIR, cred, l); 623 inp->Fid = *fid; 624 CNV_V2VV_ATTR(&inp->attr, va); 625 626 inp->name = Isize; 627 STRCPY(name, nm, len); /* increments Isize */ 628 629 error = coda_call(mdp, Isize, &Osize, (char *)inp); 630 KASSERT(outp != NULL); 631 if (!error) { 632 *VFid = outp->Fid; 633 CNV_VV2V_ATTR(ova, &outp->attr); 634 } 635 636 CODA_FREE(inp, coda_mkdir_size); 637 return error; 638 } 639 640 int 641 venus_rmdir(void *mdp, CodaFid *fid, 642 const char *nm, int len, 643 kauth_cred_t cred, struct lwp *l) 644 { 645 DECL_NO_OUT(coda_rmdir); /* sets Isize & Osize */ 646 coda_rmdir_size += len + 1; 647 ALLOC_NO_OUT(coda_rmdir); /* sets inp & outp */ 648 649 /* send the open to venus. */ 650 INIT_IN_L(&inp->ih, CODA_RMDIR, cred, l); 651 inp->Fid = *fid; 652 653 inp->name = Isize; 654 STRCPY(name, nm, len); /* increments Isize */ 655 656 error = coda_call(mdp, Isize, &Osize, (char *)inp); 657 658 CODA_FREE(inp, coda_rmdir_size); 659 return error; 660 } 661 662 int 663 venus_symlink(void *mdp, CodaFid *fid, 664 const char *lnm, int llen, const char *nm, int len, struct vattr *va, 665 kauth_cred_t cred, struct lwp *l) 666 { 667 DECL_NO_OUT(coda_symlink); /* sets Isize & Osize */ 668 coda_symlink_size += llen + 1 + len + 1; 669 ALLOC_NO_OUT(coda_symlink); /* sets inp & outp */ 670 671 /* send the open to venus. */ 672 INIT_IN_L(&inp->ih, CODA_SYMLINK, cred, l); 673 inp->Fid = *fid; 674 CNV_V2VV_ATTR(&inp->attr, va); 675 676 inp->srcname = Isize; 677 STRCPY(srcname, lnm, llen); /* increments Isize */ 678 679 inp->tname = Isize; 680 STRCPY(tname, nm, len); /* increments Isize */ 681 682 error = coda_call(mdp, Isize, &Osize, (char *)inp); 683 684 CODA_FREE(inp, coda_symlink_size); 685 return error; 686 } 687 688 int 689 venus_readdir(void *mdp, CodaFid *fid, 690 int count, int offset, 691 kauth_cred_t cred, struct lwp *l, 692 /*out*/ char *buffer, int *len) 693 { 694 DECL(coda_readdir); /* sets Isize & Osize */ 695 coda_readdir_size = VC_MAXMSGSIZE; 696 ALLOC(coda_readdir); /* sets inp & outp */ 697 698 /* send the open to venus. */ 699 INIT_IN_L(&inp->ih, CODA_READDIR, cred, l); 700 inp->Fid = *fid; 701 inp->count = count; 702 inp->offset = offset; 703 704 Osize = VC_MAXMSGSIZE; 705 error = coda_call(mdp, Isize, &Osize, (char *)inp); 706 KASSERT(outp != NULL); 707 if (!error) { 708 memcpy(buffer, (char *)outp + (int)(long)outp->data, outp->size); 709 *len = outp->size; 710 } 711 712 CODA_FREE(inp, coda_readdir_size); 713 return error; 714 } 715 716 int 717 venus_statfs(void *mdp, kauth_cred_t cred, struct lwp *l, 718 /*out*/ struct coda_statfs *fsp) 719 { 720 DECL(coda_statfs); /* sets Isize & Osize */ 721 ALLOC(coda_statfs); /* sets inp & outp */ 722 723 /* send the open to venus. */ 724 INIT_IN_L(&inp->ih, CODA_STATFS, cred, l); 725 726 error = coda_call(mdp, Isize, &Osize, (char *)inp); 727 KASSERT(outp != NULL); 728 if (!error) { 729 *fsp = outp->stat; 730 } 731 732 CODA_FREE(inp, coda_statfs_size); 733 return error; 734 } 735 736 int 737 venus_fhtovp(void *mdp, CodaFid *fid, 738 kauth_cred_t cred, struct proc *p, 739 /*out*/ CodaFid *VFid, int *vtype) 740 { 741 DECL(coda_vget); /* sets Isize & Osize */ 742 ALLOC(coda_vget); /* sets inp & outp */ 743 744 /* Send the open to Venus. */ 745 INIT_IN(&inp->ih, CODA_VGET, cred, p); 746 inp->Fid = *fid; 747 748 error = coda_call(mdp, Isize, &Osize, (char *)inp); 749 KASSERT(outp != NULL); 750 if (!error) { 751 *VFid = outp->Fid; 752 *vtype = outp->vtype; 753 } 754 755 CODA_FREE(inp, coda_vget_size); 756 return error; 757 } 758
Indexes created Sun Sep 21 15:09:59 GMT 2025