1 /*- 2 * Copyright (c) 1994-1995 S�ren Schmidt 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 * in this position and unchanged. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. The name of the author may not be used to endorse or promote products 15 * derived from this software withough specific prior written permission 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 27 * 28 * $FreeBSD$ 29 */ 30 31 #include <sys/param.h> 32 #include <sys/systm.h> 33 #include <sys/sysproto.h> 34 #include <sys/fcntl.h> 35 #include <sys/file.h> 36 #include <sys/filedesc.h> 37 #include <sys/proc.h> 38 #include <sys/ioctl.h> 39 #include <sys/stat.h> 40 #include <sys/vnode.h> 41 #include <sys/malloc.h> 42 #include <sys/exec.h> 43 #include <sys/dirent.h> 44 #include <sys/sysproto.h> 45 #include <sys/conf.h> 46 #include <sys/tty.h> 47 48 #include <ufs/ufs/dir.h> 49 50 #include <i386/linux/linux.h> 51 #include <i386/linux/linux_proto.h> 52 #include <i386/linux/linux_util.h> 53 54 int 55 linux_creat(struct proc *p, struct linux_creat_args *args, int *retval) 56 { 57 struct open_args /* { 58 char *path; 59 int flags; 60 int mode; 61 } */ bsd_open_args; 62 caddr_t sg; 63 64 sg = stackgap_init(); 65 CHECKALTCREAT(p, &sg, args->path); 66 67 #ifdef DEBUG 68 printf("Linux-emul(%d): creat(%s, %d)\n", 69 p->p_pid, args->path, args->mode); 70 #endif 71 bsd_open_args.path = args->path; 72 bsd_open_args.mode = args->mode; 73 bsd_open_args.flags = O_WRONLY | O_CREAT | O_TRUNC; 74 return open(p, &bsd_open_args, retval); 75 } 76 77 int 78 linux_open(struct proc *p, struct linux_open_args *args, int *retval) 79 { 80 struct open_args /* { 81 char *path; 82 int flags; 83 int mode; 84 } */ bsd_open_args; 85 int error; 86 caddr_t sg; 87 88 sg = stackgap_init(); 89 90 if (args->flags & LINUX_O_CREAT) 91 CHECKALTCREAT(p, &sg, args->path); 92 else 93 CHECKALTEXIST(p, &sg, args->path); 94 95 #ifdef DEBUG 96 printf("Linux-emul(%d): open(%s, 0x%x, 0x%x)\n", 97 p->p_pid, args->path, args->flags, args->mode); 98 #endif 99 bsd_open_args.flags = 0; 100 if (args->flags & LINUX_O_RDONLY) 101 bsd_open_args.flags |= O_RDONLY; 102 if (args->flags & LINUX_O_WRONLY) 103 bsd_open_args.flags |= O_WRONLY; 104 if (args->flags & LINUX_O_RDWR) 105 bsd_open_args.flags |= O_RDWR; 106 if (args->flags & LINUX_O_NDELAY) 107 bsd_open_args.flags |= O_NONBLOCK; 108 if (args->flags & LINUX_O_APPEND) 109 bsd_open_args.flags |= O_APPEND; 110 if (args->flags & LINUX_O_SYNC) 111 bsd_open_args.flags |= O_FSYNC; 112 if (args->flags & LINUX_O_NONBLOCK) 113 bsd_open_args.flags |= O_NONBLOCK; 114 if (args->flags & LINUX_FASYNC) 115 bsd_open_args.flags |= O_ASYNC; 116 if (args->flags & LINUX_O_CREAT) 117 bsd_open_args.flags |= O_CREAT; 118 if (args->flags & LINUX_O_TRUNC) 119 bsd_open_args.flags |= O_TRUNC; 120 if (args->flags & LINUX_O_EXCL) 121 bsd_open_args.flags |= O_EXCL; 122 if (args->flags & LINUX_O_NOCTTY) 123 bsd_open_args.flags |= O_NOCTTY; 124 bsd_open_args.path = args->path; 125 bsd_open_args.mode = args->mode; 126 127 error = open(p, &bsd_open_args, retval); 128 if (!error && !(bsd_open_args.flags & O_NOCTTY) && 129 SESS_LEADER(p) && !(p->p_flag & P_CONTROLT)) { 130 struct filedesc *fdp = p->p_fd; 131 struct file *fp = fdp->fd_ofiles[*retval]; 132 133 if (fp->f_type == DTYPE_VNODE) 134 (fp->f_ops->fo_ioctl)(fp, TIOCSCTTY, (caddr_t) 0, p); 135 } 136 #ifdef DEBUG 137 printf("Linux-emul(%d): open returns error %d\n", 138 p->p_pid, error); 139 #endif 140 return error; 141 } 142 143 struct linux_flock { 144 short l_type; 145 short l_whence; 146 linux_off_t l_start; 147 linux_off_t l_len; 148 linux_pid_t l_pid; 149 }; 150 151 static void 152 linux_to_bsd_flock(struct linux_flock *linux_flock, struct flock *bsd_flock) 153 { 154 switch (linux_flock->l_type) { 155 case LINUX_F_RDLCK: 156 bsd_flock->l_type = F_RDLCK; 157 break; 158 case LINUX_F_WRLCK: 159 bsd_flock->l_type = F_WRLCK; 160 break; 161 case LINUX_F_UNLCK: 162 bsd_flock->l_type = F_UNLCK; 163 break; 164 } 165 bsd_flock->l_whence = linux_flock->l_whence; 166 bsd_flock->l_start = (off_t)linux_flock->l_start; 167 bsd_flock->l_len = (off_t)linux_flock->l_len; 168 bsd_flock->l_pid = (pid_t)linux_flock->l_pid; 169 } 170 171 static void 172 bsd_to_linux_flock(struct flock *bsd_flock, struct linux_flock *linux_flock) 173 { 174 switch (bsd_flock->l_type) { 175 case F_RDLCK: 176 linux_flock->l_type = LINUX_F_RDLCK; 177 break; 178 case F_WRLCK: 179 linux_flock->l_type = LINUX_F_WRLCK; 180 break; 181 case F_UNLCK: 182 linux_flock->l_type = LINUX_F_UNLCK; 183 break; 184 } 185 linux_flock->l_whence = bsd_flock->l_whence; 186 linux_flock->l_start = (linux_off_t)bsd_flock->l_start; 187 linux_flock->l_len = (linux_off_t)bsd_flock->l_len; 188 linux_flock->l_pid = (linux_pid_t)bsd_flock->l_pid; 189 } 190 191 int 192 linux_fcntl(struct proc *p, struct linux_fcntl_args *args, int *retval) 193 { 194 int error, result; 195 struct fcntl_args /* { 196 int fd; 197 int cmd; 198 int arg; 199 } */ fcntl_args; 200 struct linux_flock linux_flock; 201 struct flock *bsd_flock; 202 struct filedesc *fdp; 203 struct file *fp; 204 struct vnode *vp; 205 struct vattr va; 206 long pgid; 207 struct pgrp *pgrp; 208 struct tty *tp, *(*d_tty) __P((dev_t)); 209 caddr_t sg; 210 211 sg = stackgap_init(); 212 bsd_flock = (struct flock *)stackgap_alloc(&sg, sizeof(struct flock)); 213 d_tty = NULL; 214 215 #ifdef DEBUG 216 printf("Linux-emul(%d): fcntl(%d, %08x, *)\n", 217 p->p_pid, args->fd, args->cmd); 218 #endif 219 fcntl_args.fd = args->fd; 220 fcntl_args.arg = 0; 221 222 switch (args->cmd) { 223 case LINUX_F_DUPFD: 224 fcntl_args.cmd = F_DUPFD; 225 return fcntl(p, &fcntl_args, retval); 226 227 case LINUX_F_GETFD: 228 fcntl_args.cmd = F_GETFD; 229 return fcntl(p, &fcntl_args, retval); 230 231 case LINUX_F_SETFD: 232 fcntl_args.cmd = F_SETFD; 233 return fcntl(p, &fcntl_args, retval); 234 235 case LINUX_F_GETFL: 236 fcntl_args.cmd = F_GETFL; 237 error = fcntl(p, &fcntl_args, &result); 238 *retval = 0; 239 if (result & O_RDONLY) *retval |= LINUX_O_RDONLY; 240 if (result & O_WRONLY) *retval |= LINUX_O_WRONLY; 241 if (result & O_RDWR) *retval |= LINUX_O_RDWR; 242 if (result & O_NDELAY) *retval |= LINUX_O_NONBLOCK; 243 if (result & O_APPEND) *retval |= LINUX_O_APPEND; 244 if (result & O_FSYNC) *retval |= LINUX_O_SYNC; 245 return error; 246 247 case LINUX_F_SETFL: 248 if (args->arg & LINUX_O_NDELAY) fcntl_args.arg |= O_NONBLOCK; 249 if (args->arg & LINUX_O_APPEND) fcntl_args.arg |= O_APPEND; 250 if (args->arg & LINUX_O_SYNC) fcntl_args.arg |= O_FSYNC; 251 fcntl_args.cmd = F_SETFL; 252 return fcntl(p, &fcntl_args, retval); 253 254 case LINUX_F_GETLK: 255 if ((error = copyin((caddr_t)args->arg, (caddr_t)&linux_flock, 256 sizeof(struct linux_flock)))) 257 return error; 258 linux_to_bsd_flock(&linux_flock, bsd_flock); 259 fcntl_args.cmd = F_GETLK; 260 fcntl_args.arg = (int)bsd_flock; 261 if (error = fcntl(p, &fcntl_args, retval)) 262 return error; 263 bsd_to_linux_flock(bsd_flock, &linux_flock); 264 return copyout((caddr_t)&linux_flock, (caddr_t)args->arg, 265 sizeof(struct linux_flock)); 266 267 case LINUX_F_SETLK: 268 if ((error = copyin((caddr_t)args->arg, (caddr_t)&linux_flock, 269 sizeof(struct linux_flock)))) 270 return error; 271 linux_to_bsd_flock(&linux_flock, bsd_flock); 272 fcntl_args.cmd = F_SETLK; 273 fcntl_args.arg = (int)bsd_flock; 274 return fcntl(p, &fcntl_args, retval); 275 276 case LINUX_F_SETLKW: 277 if ((error = copyin((caddr_t)args->arg, (caddr_t)&linux_flock, 278 sizeof(struct linux_flock)))) 279 return error; 280 linux_to_bsd_flock(&linux_flock, bsd_flock); 281 fcntl_args.cmd = F_SETLKW; 282 fcntl_args.arg = (int)bsd_flock; 283 return fcntl(p, &fcntl_args, retval); 284 285 case LINUX_F_SETOWN: 286 case LINUX_F_GETOWN: 287 /* 288 * We need to route around the normal fcntl() for these calls, 289 * since it uses TIOC{G,S}PGRP, which is too restrictive for 290 * Linux F_{G,S}ETOWN semantics. For sockets, this problem 291 * does not exist. 292 */ 293 fdp = p->p_fd; 294 if ((u_int)args->fd >= fdp->fd_nfiles || 295 (fp = fdp->fd_ofiles[args->fd]) == NULL) 296 return EBADF; 297 if (fp->f_type == DTYPE_SOCKET) { 298 fcntl_args.cmd = args->cmd == LINUX_F_SETOWN ? F_SETOWN : F_GETOWN; 299 return fcntl(p, &fcntl_args, retval); 300 } 301 vp = (struct vnode *)fp->f_data; 302 if (vp->v_type != VCHR) 303 return EINVAL; 304 if ((error = VOP_GETATTR(vp, &va, p->p_ucred, p))) 305 return error; 306 307 d_tty = cdevsw[major(va.va_rdev)]->d_devtotty; 308 if (!d_tty || (!(tp = (*d_tty)(va.va_rdev)))) 309 return EINVAL; 310 if (args->cmd == LINUX_F_GETOWN) { 311 retval[0] = tp->t_pgrp ? tp->t_pgrp->pg_id : NO_PID; 312 return 0; 313 } 314 if ((long)args->arg <= 0) { 315 pgid = -(long)args->arg; 316 } else { 317 struct proc *p1 = pfind((long)args->arg); 318 if (p1 == 0) 319 return (ESRCH); 320 pgid = (long)p1->p_pgrp->pg_id; 321 } 322 pgrp = pgfind(pgid); 323 if (pgrp == NULL || pgrp->pg_session != p->p_session) 324 return EPERM; 325 tp->t_pgrp = pgrp; 326 return 0; 327 } 328 return EINVAL; 329 } 330 331 int 332 linux_lseek(struct proc *p, struct linux_lseek_args *args, int *retval) 333 { 334 335 struct lseek_args /* { 336 int fd; 337 int pad; 338 off_t offset; 339 int whence; 340 } */ tmp_args; 341 int error; 342 343 #ifdef DEBUG 344 printf("Linux-emul(%d): lseek(%d, %d, %d)\n", 345 p->p_pid, args->fdes, args->off, args->whence); 346 #endif 347 tmp_args.fd = args->fdes; 348 tmp_args.offset = (off_t)args->off; 349 tmp_args.whence = args->whence; 350 error = lseek(p, &tmp_args, retval); 351 return error; 352 } 353 354 int 355 linux_llseek(struct proc *p, struct linux_llseek_args *args, int *retval) 356 { 357 struct lseek_args bsd_args; 358 int error; 359 off_t off; 360 361 #ifdef DEBUG 362 printf("Linux-emul(%d): llseek(%d, %d:%d, %d)\n", 363 p->p_pid, args->fd, args->ohigh, args->olow, args->whence); 364 #endif 365 off = (args->olow) | (((off_t) args->ohigh) << 32); 366 367 bsd_args.fd = args->fd; 368 bsd_args.offset = off; 369 bsd_args.whence = args->whence; 370 371 if ((error = lseek(p, &bsd_args, retval))) 372 return error; 373 374 if ((error = copyout(retval, (caddr_t)args->res, sizeof (off_t)))) 375 return error; 376 377 retval[0] = 0; 378 return 0; 379 } 380 381 382 struct linux_dirent { 383 long dino; 384 linux_off_t doff; 385 unsigned short dreclen; 386 char dname[LINUX_NAME_MAX + 1]; 387 }; 388 389 #define LINUX_RECLEN(de,namlen) \ 390 ALIGN((((char *)&(de)->dname - (char *)de) + (namlen) + 1)) 391 392 int 393 linux_readdir(struct proc *p, struct linux_readdir_args *args, int *retval) 394 { 395 struct linux_getdents_args lda; 396 397 lda.fd = args->fd; 398 lda.dent = args->dent; 399 lda.count = 1; 400 return linux_getdents(p, &lda, retval); 401 } 402 403 int 404 linux_getdents(struct proc *p, struct linux_getdents_args *args, int *retval) 405 { 406 register struct dirent *bdp; 407 struct vnode *vp; 408 caddr_t inp, buf; /* BSD-format */ 409 int len, reclen; /* BSD-format */ 410 caddr_t outp; /* Linux-format */ 411 int resid, linuxreclen=0; /* Linux-format */ 412 struct file *fp; 413 struct uio auio; 414 struct iovec aiov; 415 struct vattr va; 416 off_t off; 417 struct linux_dirent linux_dirent; 418 int buflen, error, eofflag, nbytes, justone, blockoff; 419 420 #ifdef DEBUG 421 printf("Linux-emul(%d): getdents(%d, *, %d)\n", 422 p->p_pid, args->fd, args->count); 423 #endif 424 if ((error = getvnode(p->p_fd, args->fd, &fp)) != 0) { 425 return (error); 426 } 427 428 if ((fp->f_flag & FREAD) == 0) 429 return (EBADF); 430 431 vp = (struct vnode *) fp->f_data; 432 433 if (vp->v_type != VDIR) 434 return (EINVAL); 435 436 if ((error = VOP_GETATTR(vp, &va, p->p_ucred, p))) { 437 return error; 438 } 439 440 nbytes = args->count; 441 if (nbytes == 1) { 442 nbytes = sizeof (struct linux_dirent); 443 justone = 1; 444 } 445 else 446 justone = 0; 447 448 off = fp->f_offset; 449 blockoff = off % DIRBLKSIZ; 450 buflen = max(DIRBLKSIZ, nbytes + blockoff); 451 buflen = min(buflen, MAXBSIZE); 452 buf = malloc(buflen, M_TEMP, M_WAITOK); 453 vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, p); 454 again: 455 aiov.iov_base = buf; 456 aiov.iov_len = buflen; 457 auio.uio_iov = &aiov; 458 auio.uio_iovcnt = 1; 459 auio.uio_rw = UIO_READ; 460 auio.uio_segflg = UIO_SYSSPACE; 461 auio.uio_procp = p; 462 auio.uio_resid = buflen; 463 auio.uio_offset = off - (off_t)blockoff; 464 465 error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag, NULL, NULL); 466 if (error) { 467 goto out; 468 } 469 470 inp = buf; 471 inp += blockoff; 472 outp = (caddr_t) args->dent; 473 resid = nbytes; 474 if ((len = buflen - auio.uio_resid - blockoff) == 0) { 475 goto eof; 476 } 477 478 while (len > 0) { 479 bdp = (struct dirent *) inp; 480 reclen = bdp->d_reclen; 481 if (reclen & 3) { 482 printf("linux_readdir: reclen=%d\n", reclen); 483 error = EFAULT; 484 goto out; 485 } 486 487 if (bdp->d_fileno == 0) { 488 inp += reclen; 489 off += reclen; 490 len -= reclen; 491 continue; 492 } 493 linuxreclen = LINUX_RECLEN(&linux_dirent, bdp->d_namlen); 494 if (reclen > len || resid < linuxreclen) { 495 outp++; 496 break; 497 } 498 linux_dirent.dino = (long) bdp->d_fileno; 499 if (justone) { 500 /* 501 * old linux-style readdir usage. 502 */ 503 linux_dirent.doff = (linux_off_t) linuxreclen; 504 linux_dirent.dreclen = (u_short) bdp->d_namlen; 505 } else { 506 linux_dirent.doff = (linux_off_t) off; 507 linux_dirent.dreclen = (u_short) linuxreclen; 508 } 509 strcpy(linux_dirent.dname, bdp->d_name); 510 if ((error = copyout((caddr_t)&linux_dirent, outp, linuxreclen))) { 511 goto out; 512 } 513 inp += reclen; 514 off += reclen; 515 outp += linuxreclen; 516 resid -= linuxreclen; 517 len -= reclen; 518 if (justone) 519 break; 520 } 521 522 if (outp == (caddr_t) args->dent) 523 goto again; 524 fp->f_offset = off; 525 526 if (justone) 527 nbytes = resid + linuxreclen; 528 529 eof: 530 *retval = nbytes - resid; 531 out: 532 VOP_UNLOCK(vp, 0, p); 533 free(buf, M_TEMP); 534 return error; 535 } 536 537 /* 538 * These exist mainly for hooks for doing /compat/linux translation. 539 */ 540 541 int 542 linux_access(struct proc *p, struct linux_access_args *args, int *retval) 543 { 544 struct access_args bsd; 545 caddr_t sg; 546 547 sg = stackgap_init(); 548 CHECKALTEXIST(p, &sg, args->path); 549 550 #ifdef DEBUG 551 printf("Linux-emul(%d): access(%s, %d)\n", 552 p->p_pid, args->path, args->flags); 553 #endif 554 bsd.path = args->path; 555 bsd.flags = args->flags; 556 557 return access(p, &bsd, retval); 558 } 559 560 int 561 linux_unlink(struct proc *p, struct linux_unlink_args *args, int *retval) 562 { 563 struct unlink_args bsd; 564 caddr_t sg; 565 566 sg = stackgap_init(); 567 CHECKALTEXIST(p, &sg, args->path); 568 569 #ifdef DEBUG 570 printf("Linux-emul(%d): unlink(%s)\n", 571 p->p_pid, args->path); 572 #endif 573 bsd.path = args->path; 574 575 return unlink(p, &bsd, retval); 576 } 577 578 int 579 linux_chdir(struct proc *p, struct linux_chdir_args *args, int *retval) 580 { 581 struct chdir_args bsd; 582 caddr_t sg; 583 584 sg = stackgap_init(); 585 CHECKALTEXIST(p, &sg, args->path); 586 587 #ifdef DEBUG 588 printf("Linux-emul(%d): chdir(%s)\n", 589 p->p_pid, args->path); 590 #endif 591 bsd.path = args->path; 592 593 return chdir(p, &bsd, retval); 594 } 595 596 int 597 linux_chmod(struct proc *p, struct linux_chmod_args *args, int *retval) 598 { 599 struct chmod_args bsd; 600 caddr_t sg; 601 602 sg = stackgap_init(); 603 CHECKALTEXIST(p, &sg, args->path); 604 605 #ifdef DEBUG 606 printf("Linux-emul(%d): chmod(%s, %d)\n", 607 p->p_pid, args->path, args->mode); 608 #endif 609 bsd.path = args->path; 610 bsd.mode = args->mode; 611 612 return chmod(p, &bsd, retval); 613 } 614 615 int 616 linux_chown(struct proc *p, struct linux_chown_args *args, int *retval) 617 { 618 struct chown_args bsd; 619 caddr_t sg; 620 621 sg = stackgap_init(); 622 CHECKALTEXIST(p, &sg, args->path); 623 624 #ifdef DEBUG 625 printf("Linux-emul(%d): chown(%s, %d, %d)\n", 626 p->p_pid, args->path, args->uid, args->gid); 627 #endif 628 bsd.path = args->path; 629 /* XXX size casts here */ 630 bsd.uid = args->uid; 631 bsd.gid = args->gid; 632 633 return chown(p, &bsd, retval); 634 } 635 636 int 637 linux_mkdir(struct proc *p, struct linux_mkdir_args *args, int *retval) 638 { 639 struct mkdir_args bsd; 640 caddr_t sg; 641 642 sg = stackgap_init(); 643 CHECKALTCREAT(p, &sg, args->path); 644 645 #ifdef DEBUG 646 printf("Linux-emul(%d): mkdir(%s, %d)\n", 647 p->p_pid, args->path, args->mode); 648 #endif 649 bsd.path = args->path; 650 bsd.mode = args->mode; 651 652 return mkdir(p, &bsd, retval); 653 } 654 655 int 656 linux_rmdir(struct proc *p, struct linux_rmdir_args *args, int *retval) 657 { 658 struct rmdir_args bsd; 659 caddr_t sg; 660 661 sg = stackgap_init(); 662 CHECKALTEXIST(p, &sg, args->path); 663 664 #ifdef DEBUG 665 printf("Linux-emul(%d): rmdir(%s)\n", 666 p->p_pid, args->path); 667 #endif 668 bsd.path = args->path; 669 670 return rmdir(p, &bsd, retval); 671 } 672 673 int 674 linux_rename(struct proc *p, struct linux_rename_args *args, int *retval) 675 { 676 struct rename_args bsd; 677 caddr_t sg; 678 679 sg = stackgap_init(); 680 CHECKALTEXIST(p, &sg, args->from); 681 CHECKALTCREAT(p, &sg, args->to); 682 683 #ifdef DEBUG 684 printf("Linux-emul(%d): rename(%s, %s)\n", 685 p->p_pid, args->from, args->to); 686 #endif 687 bsd.from = args->from; 688 bsd.to = args->to; 689 690 return rename(p, &bsd, retval); 691 } 692 693 int 694 linux_symlink(struct proc *p, struct linux_symlink_args *args, int *retval) 695 { 696 struct symlink_args bsd; 697 caddr_t sg; 698 699 sg = stackgap_init(); 700 CHECKALTEXIST(p, &sg, args->path); 701 CHECKALTCREAT(p, &sg, args->to); 702 703 #ifdef DEBUG 704 printf("Linux-emul(%d): symlink(%s, %s)\n", 705 p->p_pid, args->path, args->to); 706 #endif 707 bsd.path = args->path; 708 bsd.link = args->to; 709 710 return symlink(p, &bsd, retval); 711 } 712 713 int 714 linux_execve(struct proc *p, struct linux_execve_args *args, int *retval) 715 { 716 struct execve_args bsd; 717 caddr_t sg; 718 719 sg = stackgap_init(); 720 CHECKALTEXIST(p, &sg, args->path); 721 722 #ifdef DEBUG 723 printf("Linux-emul(%d): execve(%s)\n", 724 p->p_pid, args->path); 725 #endif 726 bsd.fname = args->path; 727 bsd.argv = args->argp; 728 bsd.envv = args->envp; 729 730 return execve(p, &bsd, retval); 731 } 732 733 int 734 linux_readlink(struct proc *p, struct linux_readlink_args *args, int *retval) 735 { 736 struct readlink_args bsd; 737 caddr_t sg; 738 739 sg = stackgap_init(); 740 CHECKALTEXIST(p, &sg, args->name); 741 742 #ifdef DEBUG 743 printf("Linux-emul(%d): readlink(%s, 0x%x, %d)\n", 744 p->p_pid, args->name, args->buf, args->count); 745 #endif 746 bsd.path = args->name; 747 bsd.buf = args->buf; 748 bsd.count = args->count; 749 750 return readlink(p, &bsd, retval); 751 } 752 753 int 754 linux_truncate(struct proc *p, struct linux_truncate_args *args, int *retval) 755 { 756 struct otruncate_args bsd; 757 caddr_t sg; 758 759 sg = stackgap_init(); 760 CHECKALTEXIST(p, &sg, args->path); 761 762 #ifdef DEBUG 763 printf("Linux-emul(%d): truncate(%s)\n", 764 p->p_pid, args->path); 765 #endif 766 bsd.path = args->path; 767 768 return otruncate(p, &bsd, retval); 769 } 770 771