Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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sys/compat/svr4/svr4_misc.c
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1 /*- 2 * Copyright (c) 1998 Mark Newton 3 * Copyright (c) 1994 Christos Zoulas 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 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 without 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 /* 29 * SVR4 compatibility module. 30 * 31 * SVR4 system calls that are implemented differently in BSD are 32 * handled here. 33 */ 34 35 #include <sys/cdefs.h> 36 __FBSDID("$FreeBSD: src/sys/compat/svr4/svr4_misc.c,v 1.71.2.6 2005/04/21 22:19:21 ps Exp $"); 37 38 #include "opt_mac.h" 39 40 #include <sys/param.h> 41 #include <sys/systm.h> 42 #include <sys/dirent.h> 43 #include <sys/fcntl.h> 44 #include <sys/filedesc.h> 45 #include <sys/kernel.h> 46 #include <sys/lock.h> 47 #include <sys/mac.h> 48 #include <sys/malloc.h> 49 #include <sys/file.h> /* Must come after sys/malloc.h */ 50 #include <sys/mman.h> 51 #include <sys/mount.h> 52 #include <sys/msg.h> 53 #include <sys/mutex.h> 54 #include <sys/namei.h> 55 #include <sys/proc.h> 56 #include <sys/ptrace.h> 57 #include <sys/resource.h> 58 #include <sys/resourcevar.h> 59 #include <sys/sem.h> 60 #include <sys/signalvar.h> 61 #include <sys/stat.h> 62 #include <sys/sx.h> 63 #include <sys/syscallsubr.h> 64 #include <sys/sysproto.h> 65 #include <sys/time.h> 66 #include <sys/times.h> 67 #include <sys/uio.h> 68 #include <sys/vnode.h> 69 #include <sys/wait.h> 70 71 #include <compat/svr4/svr4.h> 72 #include <compat/svr4/svr4_types.h> 73 #include <compat/svr4/svr4_signal.h> 74 #include <compat/svr4/svr4_proto.h> 75 #include <compat/svr4/svr4_util.h> 76 #include <compat/svr4/svr4_sysconfig.h> 77 #include <compat/svr4/svr4_dirent.h> 78 #include <compat/svr4/svr4_acl.h> 79 #include <compat/svr4/svr4_ulimit.h> 80 #include <compat/svr4/svr4_statvfs.h> 81 #include <compat/svr4/svr4_hrt.h> 82 #include <compat/svr4/svr4_mman.h> 83 #include <compat/svr4/svr4_wait.h> 84 85 #include <machine/vmparam.h> 86 #include <vm/vm.h> 87 #include <vm/vm_param.h> 88 #include <vm/vm_map.h> 89 #if defined(__FreeBSD__) 90 #include <vm/uma.h> 91 #include <vm/vm_extern.h> 92 #endif 93 94 #if defined(NetBSD) 95 # if defined(UVM) 96 # include <uvm/uvm_extern.h> 97 # endif 98 #endif 99 100 #define BSD_DIRENT(cp) ((struct dirent *)(cp)) 101 102 static int svr4_mknod(struct thread *, register_t *, char *, 103 svr4_mode_t, svr4_dev_t); 104 105 static __inline clock_t timeval_to_clock_t(struct timeval *); 106 static int svr4_setinfo (struct proc *, int, svr4_siginfo_t *); 107 108 struct svr4_hrtcntl_args; 109 static int svr4_hrtcntl (struct thread *, struct svr4_hrtcntl_args *, 110 register_t *); 111 static void bsd_statfs_to_svr4_statvfs(const struct statfs *, 112 struct svr4_statvfs *); 113 static void bsd_statfs_to_svr4_statvfs64(const struct statfs *, 114 struct svr4_statvfs64 *); 115 static struct proc *svr4_pfind(pid_t pid); 116 117 /* BOGUS noop */ 118 #if defined(BOGUS) 119 int 120 svr4_sys_setitimer(td, uap) 121 register struct thread *td; 122 struct svr4_sys_setitimer_args *uap; 123 { 124 td->td_retval[0] = 0; 125 return 0; 126 } 127 #endif 128 129 int 130 svr4_sys_wait(td, uap) 131 struct thread *td; 132 struct svr4_sys_wait_args *uap; 133 { 134 int error, st, sig; 135 136 error = kern_wait(td, WAIT_ANY, &st, 0, NULL); 137 if (error) 138 return (error); 139 140 if (WIFSIGNALED(st)) { 141 sig = WTERMSIG(st); 142 if (sig >= 0 && sig < NSIG) 143 st = (st & ~0177) | SVR4_BSD2SVR4_SIG(sig); 144 } else if (WIFSTOPPED(st)) { 145 sig = WSTOPSIG(st); 146 if (sig >= 0 && sig < NSIG) 147 st = (st & ~0xff00) | (SVR4_BSD2SVR4_SIG(sig) << 8); 148 } 149 150 /* 151 * It looks like wait(2) on svr4/solaris/2.4 returns 152 * the status in retval[1], and the pid on retval[0]. 153 */ 154 td->td_retval[1] = st; 155 156 if (uap->status) 157 error = copyout(&st, uap->status, sizeof(st)); 158 159 return (error); 160 } 161 162 int 163 svr4_sys_execv(td, uap) 164 struct thread *td; 165 struct svr4_sys_execv_args *uap; 166 { 167 struct execve_args ap; 168 caddr_t sg; 169 170 sg = stackgap_init(); 171 CHECKALTEXIST(td, &sg, uap->path); 172 173 ap.fname = uap->path; 174 ap.argv = uap->argp; 175 ap.envv = NULL; 176 177 return execve(td, &ap); 178 } 179 180 int 181 svr4_sys_execve(td, uap) 182 struct thread *td; 183 struct svr4_sys_execve_args *uap; 184 { 185 struct execve_args ap; 186 caddr_t sg; 187 188 sg = stackgap_init(); 189 CHECKALTEXIST(td, &sg, uap->path); 190 191 ap.fname = uap->path; 192 ap.argv = uap->argp; 193 ap.envv = uap->envp; 194 195 return execve(td, &ap); 196 } 197 198 int 199 svr4_sys_time(td, v) 200 struct thread *td; 201 struct svr4_sys_time_args *v; 202 { 203 struct svr4_sys_time_args *uap = v; 204 int error = 0; 205 struct timeval tv; 206 207 microtime(&tv); 208 if (uap->t) 209 error = copyout(&tv.tv_sec, uap->t, 210 sizeof(*(uap->t))); 211 td->td_retval[0] = (int) tv.tv_sec; 212 213 return error; 214 } 215 216 217 /* 218 * Read SVR4-style directory entries. We suck them into kernel space so 219 * that they can be massaged before being copied out to user code. 220 * 221 * This code is ported from the Linux emulator: Changes to the VFS interface 222 * between FreeBSD and NetBSD have made it simpler to port it from there than 223 * to adapt the NetBSD version. 224 */ 225 int 226 svr4_sys_getdents64(td, uap) 227 struct thread *td; 228 struct svr4_sys_getdents64_args *uap; 229 { 230 register struct dirent *bdp; 231 struct vnode *vp; 232 caddr_t inp, buf; /* BSD-format */ 233 int len, reclen; /* BSD-format */ 234 caddr_t outp; /* SVR4-format */ 235 int resid, svr4reclen=0; /* SVR4-format */ 236 struct file *fp; 237 struct uio auio; 238 struct iovec aiov; 239 off_t off; 240 struct svr4_dirent64 svr4_dirent; 241 int buflen, error, eofflag, nbytes, justone; 242 u_long *cookies = NULL, *cookiep; 243 int ncookies; 244 245 DPRINTF(("svr4_sys_getdents64(%d, *, %d)\n", 246 uap->fd, uap->nbytes)); 247 if ((error = getvnode(td->td_proc->p_fd, uap->fd, &fp)) != 0) { 248 return (error); 249 } 250 251 if ((fp->f_flag & FREAD) == 0) { 252 fdrop(fp, td); 253 return (EBADF); 254 } 255 256 vp = fp->f_vnode; 257 258 if (vp->v_type != VDIR) { 259 fdrop(fp, td); 260 return (EINVAL); 261 } 262 263 nbytes = uap->nbytes; 264 if (nbytes == 1) { 265 nbytes = sizeof (struct svr4_dirent64); 266 justone = 1; 267 } 268 else 269 justone = 0; 270 271 off = fp->f_offset; 272 #define DIRBLKSIZ 512 /* XXX we used to use ufs's DIRBLKSIZ */ 273 buflen = max(DIRBLKSIZ, nbytes); 274 buflen = min(buflen, MAXBSIZE); 275 buf = malloc(buflen, M_TEMP, M_WAITOK); 276 vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td); 277 again: 278 aiov.iov_base = buf; 279 aiov.iov_len = buflen; 280 auio.uio_iov = &aiov; 281 auio.uio_iovcnt = 1; 282 auio.uio_rw = UIO_READ; 283 auio.uio_segflg = UIO_SYSSPACE; 284 auio.uio_td = td; 285 auio.uio_resid = buflen; 286 auio.uio_offset = off; 287 288 if (cookies) { 289 free(cookies, M_TEMP); 290 cookies = NULL; 291 } 292 293 #ifdef MAC 294 error = mac_check_vnode_readdir(td->td_ucred, vp); 295 if (error) 296 goto out; 297 #endif 298 299 error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag, 300 &ncookies, &cookies); 301 if (error) { 302 goto out; 303 } 304 305 inp = buf; 306 outp = (caddr_t) uap->dp; 307 resid = nbytes; 308 if ((len = buflen - auio.uio_resid) <= 0) { 309 goto eof; 310 } 311 312 cookiep = cookies; 313 314 if (cookies) { 315 /* 316 * When using cookies, the vfs has the option of reading from 317 * a different offset than that supplied (UFS truncates the 318 * offset to a block boundary to make sure that it never reads 319 * partway through a directory entry, even if the directory 320 * has been compacted). 321 */ 322 while (len > 0 && ncookies > 0 && *cookiep <= off) { 323 bdp = (struct dirent *) inp; 324 len -= bdp->d_reclen; 325 inp += bdp->d_reclen; 326 cookiep++; 327 ncookies--; 328 } 329 } 330 331 while (len > 0) { 332 if (cookiep && ncookies == 0) 333 break; 334 bdp = (struct dirent *) inp; 335 reclen = bdp->d_reclen; 336 if (reclen & 3) { 337 DPRINTF(("svr4_readdir: reclen=%d\n", reclen)); 338 error = EFAULT; 339 goto out; 340 } 341 342 if (bdp->d_fileno == 0) { 343 inp += reclen; 344 if (cookiep) { 345 off = *cookiep++; 346 ncookies--; 347 } else 348 off += reclen; 349 len -= reclen; 350 continue; 351 } 352 svr4reclen = SVR4_RECLEN(&svr4_dirent, bdp->d_namlen); 353 if (reclen > len || resid < svr4reclen) { 354 outp++; 355 break; 356 } 357 svr4_dirent.d_ino = (long) bdp->d_fileno; 358 if (justone) { 359 /* 360 * old svr4-style readdir usage. 361 */ 362 svr4_dirent.d_off = (svr4_off_t) svr4reclen; 363 svr4_dirent.d_reclen = (u_short) bdp->d_namlen; 364 } else { 365 svr4_dirent.d_off = (svr4_off_t)(off + reclen); 366 svr4_dirent.d_reclen = (u_short) svr4reclen; 367 } 368 strcpy(svr4_dirent.d_name, bdp->d_name); 369 if ((error = copyout((caddr_t)&svr4_dirent, outp, svr4reclen))) 370 goto out; 371 inp += reclen; 372 if (cookiep) { 373 off = *cookiep++; 374 ncookies--; 375 } else 376 off += reclen; 377 outp += svr4reclen; 378 resid -= svr4reclen; 379 len -= reclen; 380 if (justone) 381 break; 382 } 383 384 if (outp == (caddr_t) uap->dp) 385 goto again; 386 fp->f_offset = off; 387 388 if (justone) 389 nbytes = resid + svr4reclen; 390 391 eof: 392 td->td_retval[0] = nbytes - resid; 393 out: 394 VOP_UNLOCK(vp, 0, td); 395 fdrop(fp, td); 396 if (cookies) 397 free(cookies, M_TEMP); 398 free(buf, M_TEMP); 399 return error; 400 } 401 402 403 int 404 svr4_sys_getdents(td, uap) 405 struct thread *td; 406 struct svr4_sys_getdents_args *uap; 407 { 408 struct dirent *bdp; 409 struct vnode *vp; 410 caddr_t inp, buf; /* BSD-format */ 411 int len, reclen; /* BSD-format */ 412 caddr_t outp; /* SVR4-format */ 413 int resid, svr4_reclen; /* SVR4-format */ 414 struct file *fp; 415 struct uio auio; 416 struct iovec aiov; 417 struct svr4_dirent idb; 418 off_t off; /* true file offset */ 419 int buflen, error, eofflag; 420 u_long *cookiebuf = NULL, *cookie; 421 int ncookies = 0, *retval = td->td_retval; 422 423 if (uap->nbytes < 0) 424 return (EINVAL); 425 426 if ((error = getvnode(td->td_proc->p_fd, uap->fd, &fp)) != 0) 427 return (error); 428 429 if ((fp->f_flag & FREAD) == 0) { 430 fdrop(fp, td); 431 return (EBADF); 432 } 433 434 vp = fp->f_vnode; 435 if (vp->v_type != VDIR) { 436 fdrop(fp, td); 437 return (EINVAL); 438 } 439 440 buflen = min(MAXBSIZE, uap->nbytes); 441 buf = malloc(buflen, M_TEMP, M_WAITOK); 442 vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td); 443 off = fp->f_offset; 444 again: 445 aiov.iov_base = buf; 446 aiov.iov_len = buflen; 447 auio.uio_iov = &aiov; 448 auio.uio_iovcnt = 1; 449 auio.uio_rw = UIO_READ; 450 auio.uio_segflg = UIO_SYSSPACE; 451 auio.uio_td = td; 452 auio.uio_resid = buflen; 453 auio.uio_offset = off; 454 455 #ifdef MAC 456 error = mac_check_vnode_readdir(td->td_ucred, vp); 457 if (error) 458 goto out; 459 #endif 460 461 /* 462 * First we read into the malloc'ed buffer, then 463 * we massage it into user space, one record at a time. 464 */ 465 error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag, &ncookies, 466 &cookiebuf); 467 if (error) { 468 goto out; 469 } 470 471 inp = buf; 472 outp = uap->buf; 473 resid = uap->nbytes; 474 if ((len = buflen - auio.uio_resid) == 0) 475 goto eof; 476 477 for (cookie = cookiebuf; len > 0; len -= reclen) { 478 bdp = (struct dirent *)inp; 479 reclen = bdp->d_reclen; 480 if (reclen & 3) 481 panic("svr4_sys_getdents64: bad reclen"); 482 off = *cookie++; /* each entry points to the next */ 483 if ((off >> 32) != 0) { 484 uprintf("svr4_sys_getdents64: dir offset too large for emulated program"); 485 error = EINVAL; 486 goto out; 487 } 488 if (bdp->d_fileno == 0) { 489 inp += reclen; /* it is a hole; squish it out */ 490 continue; 491 } 492 svr4_reclen = SVR4_RECLEN(&idb, bdp->d_namlen); 493 if (reclen > len || resid < svr4_reclen) { 494 /* entry too big for buffer, so just stop */ 495 outp++; 496 break; 497 } 498 /* 499 * Massage in place to make a SVR4-shaped dirent (otherwise 500 * we have to worry about touching user memory outside of 501 * the copyout() call). 502 */ 503 idb.d_ino = (svr4_ino_t)bdp->d_fileno; 504 idb.d_off = (svr4_off_t)off; 505 idb.d_reclen = (u_short)svr4_reclen; 506 strcpy(idb.d_name, bdp->d_name); 507 if ((error = copyout((caddr_t)&idb, outp, svr4_reclen))) 508 goto out; 509 /* advance past this real entry */ 510 inp += reclen; 511 /* advance output past SVR4-shaped entry */ 512 outp += svr4_reclen; 513 resid -= svr4_reclen; 514 } 515 516 /* if we squished out the whole block, try again */ 517 if (outp == uap->buf) 518 goto again; 519 fp->f_offset = off; /* update the vnode offset */ 520 521 eof: 522 *retval = uap->nbytes - resid; 523 out: 524 VOP_UNLOCK(vp, 0, td); 525 fdrop(fp, td); 526 if (cookiebuf) 527 free(cookiebuf, M_TEMP); 528 free(buf, M_TEMP); 529 return error; 530 } 531 532 533 int 534 svr4_sys_mmap(td, uap) 535 struct thread *td; 536 struct svr4_sys_mmap_args *uap; 537 { 538 struct mmap_args mm; 539 int *retval; 540 541 retval = td->td_retval; 542 #define _MAP_NEW 0x80000000 543 /* 544 * Verify the arguments. 545 */ 546 if (uap->prot & ~(PROT_READ | PROT_WRITE | PROT_EXEC)) 547 return EINVAL; /* XXX still needed? */ 548 549 if (uap->len == 0) 550 return EINVAL; 551 552 mm.prot = uap->prot; 553 mm.len = uap->len; 554 mm.flags = uap->flags & ~_MAP_NEW; 555 mm.fd = uap->fd; 556 mm.addr = uap->addr; 557 mm.pos = uap->pos; 558 559 return mmap(td, &mm); 560 } 561 562 int 563 svr4_sys_mmap64(td, uap) 564 struct thread *td; 565 struct svr4_sys_mmap64_args *uap; 566 { 567 struct mmap_args mm; 568 void *rp; 569 570 #define _MAP_NEW 0x80000000 571 /* 572 * Verify the arguments. 573 */ 574 if (uap->prot & ~(PROT_READ | PROT_WRITE | PROT_EXEC)) 575 return EINVAL; /* XXX still needed? */ 576 577 if (uap->len == 0) 578 return EINVAL; 579 580 mm.prot = uap->prot; 581 mm.len = uap->len; 582 mm.flags = uap->flags & ~_MAP_NEW; 583 mm.fd = uap->fd; 584 mm.addr = uap->addr; 585 mm.pos = uap->pos; 586 587 rp = (void *) round_page((vm_offset_t)(td->td_proc->p_vmspace->vm_daddr + maxdsiz)); 588 if ((mm.flags & MAP_FIXED) == 0 && 589 mm.addr != 0 && (void *)mm.addr < rp) 590 mm.addr = rp; 591 592 return mmap(td, &mm); 593 } 594 595 596 int 597 svr4_sys_fchroot(td, uap) 598 struct thread *td; 599 struct svr4_sys_fchroot_args *uap; 600 { 601 struct filedesc *fdp = td->td_proc->p_fd; 602 struct vnode *vp, *vpold; 603 struct file *fp; 604 int error; 605 606 if ((error = suser(td)) != 0) 607 return error; 608 if ((error = getvnode(fdp, uap->fd, &fp)) != 0) 609 return error; 610 vp = fp->f_vnode; 611 vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td); 612 if (vp->v_type != VDIR) 613 error = ENOTDIR; 614 else 615 error = VOP_ACCESS(vp, VEXEC, td->td_ucred, td); 616 VOP_UNLOCK(vp, 0, td); 617 if (error) { 618 fdrop(fp, td); 619 return error; 620 } 621 VREF(vp); 622 FILEDESC_LOCK_FAST(fdp); 623 vpold = fdp->fd_rdir; 624 fdp->fd_rdir = vp; 625 FILEDESC_UNLOCK_FAST(fdp); 626 if (vpold != NULL) 627 vrele(vpold); 628 fdrop(fp, td); 629 return 0; 630 } 631 632 633 static int 634 svr4_mknod(td, retval, path, mode, dev) 635 struct thread *td; 636 register_t *retval; 637 char *path; 638 svr4_mode_t mode; 639 svr4_dev_t dev; 640 { 641 caddr_t sg = stackgap_init(); 642 643 CHECKALTEXIST(td, &sg, path); 644 645 if (S_ISFIFO(mode)) { 646 struct mkfifo_args ap; 647 ap.path = path; 648 ap.mode = mode; 649 return mkfifo(td, &ap); 650 } else { 651 struct mknod_args ap; 652 ap.path = path; 653 ap.mode = mode; 654 ap.dev = dev; 655 return mknod(td, &ap); 656 } 657 } 658 659 660 int 661 svr4_sys_mknod(td, uap) 662 register struct thread *td; 663 struct svr4_sys_mknod_args *uap; 664 { 665 int *retval = td->td_retval; 666 return svr4_mknod(td, retval, 667 uap->path, uap->mode, 668 (svr4_dev_t)svr4_to_bsd_odev_t(uap->dev)); 669 } 670 671 672 int 673 svr4_sys_xmknod(td, uap) 674 struct thread *td; 675 struct svr4_sys_xmknod_args *uap; 676 { 677 int *retval = td->td_retval; 678 return svr4_mknod(td, retval, 679 uap->path, uap->mode, 680 (svr4_dev_t)svr4_to_bsd_dev_t(uap->dev)); 681 } 682 683 684 int 685 svr4_sys_vhangup(td, uap) 686 struct thread *td; 687 struct svr4_sys_vhangup_args *uap; 688 { 689 return 0; 690 } 691 692 693 int 694 svr4_sys_sysconfig(td, uap) 695 struct thread *td; 696 struct svr4_sys_sysconfig_args *uap; 697 { 698 int *retval; 699 700 retval = &(td->td_retval[0]); 701 702 switch (uap->name) { 703 case SVR4_CONFIG_UNUSED: 704 *retval = 0; 705 break; 706 case SVR4_CONFIG_NGROUPS: 707 *retval = NGROUPS_MAX; 708 break; 709 case SVR4_CONFIG_CHILD_MAX: 710 *retval = maxproc; 711 break; 712 case SVR4_CONFIG_OPEN_FILES: 713 *retval = maxfiles; 714 break; 715 case SVR4_CONFIG_POSIX_VER: 716 *retval = 198808; 717 break; 718 case SVR4_CONFIG_PAGESIZE: 719 *retval = PAGE_SIZE; 720 break; 721 case SVR4_CONFIG_CLK_TCK: 722 *retval = 60; /* should this be `hz', ie. 100? */ 723 break; 724 case SVR4_CONFIG_XOPEN_VER: 725 *retval = 2; /* XXX: What should that be? */ 726 break; 727 case SVR4_CONFIG_PROF_TCK: 728 *retval = 60; /* XXX: What should that be? */ 729 break; 730 case SVR4_CONFIG_NPROC_CONF: 731 *retval = 1; /* Only one processor for now */ 732 break; 733 case SVR4_CONFIG_NPROC_ONLN: 734 *retval = 1; /* And it better be online */ 735 break; 736 case SVR4_CONFIG_AIO_LISTIO_MAX: 737 case SVR4_CONFIG_AIO_MAX: 738 case SVR4_CONFIG_AIO_PRIO_DELTA_MAX: 739 *retval = 0; /* No aio support */ 740 break; 741 case SVR4_CONFIG_DELAYTIMER_MAX: 742 *retval = 0; /* No delaytimer support */ 743 break; 744 case SVR4_CONFIG_MQ_OPEN_MAX: 745 *retval = msginfo.msgmni; 746 break; 747 case SVR4_CONFIG_MQ_PRIO_MAX: 748 *retval = 0; /* XXX: Don't know */ 749 break; 750 case SVR4_CONFIG_RTSIG_MAX: 751 *retval = 0; 752 break; 753 case SVR4_CONFIG_SEM_NSEMS_MAX: 754 *retval = seminfo.semmni; 755 break; 756 case SVR4_CONFIG_SEM_VALUE_MAX: 757 *retval = seminfo.semvmx; 758 break; 759 case SVR4_CONFIG_SIGQUEUE_MAX: 760 *retval = 0; /* XXX: Don't know */ 761 break; 762 case SVR4_CONFIG_SIGRT_MIN: 763 case SVR4_CONFIG_SIGRT_MAX: 764 *retval = 0; /* No real time signals */ 765 break; 766 case SVR4_CONFIG_TIMER_MAX: 767 *retval = 3; /* XXX: real, virtual, profiling */ 768 break; 769 #if defined(NOTYET) 770 case SVR4_CONFIG_PHYS_PAGES: 771 #if defined(UVM) 772 *retval = uvmexp.free; /* XXX: free instead of total */ 773 #else 774 *retval = cnt.v_free_count; /* XXX: free instead of total */ 775 #endif 776 break; 777 case SVR4_CONFIG_AVPHYS_PAGES: 778 #if defined(UVM) 779 *retval = uvmexp.active; /* XXX: active instead of avg */ 780 #else 781 *retval = cnt.v_active_count; /* XXX: active instead of avg */ 782 #endif 783 break; 784 #endif /* NOTYET */ 785 786 default: 787 return EINVAL; 788 } 789 return 0; 790 } 791 792 /* ARGSUSED */ 793 int 794 svr4_sys_break(td, uap) 795 struct thread *td; 796 struct svr4_sys_break_args *uap; 797 { 798 struct proc *p = td->td_proc; 799 struct vmspace *vm = p->p_vmspace; 800 vm_offset_t new, old, base, ns; 801 int rv; 802 803 base = round_page((vm_offset_t) vm->vm_daddr); 804 ns = (vm_offset_t)uap->nsize; 805 new = round_page(ns); 806 if (new > base) { 807 PROC_LOCK(p); 808 if ((new - base) > (unsigned)lim_cur(p, RLIMIT_DATA)) { 809 PROC_UNLOCK(p); 810 return ENOMEM; 811 } 812 PROC_UNLOCK(p); 813 if (new >= VM_MAXUSER_ADDRESS) 814 return (ENOMEM); 815 } else if (new < base) { 816 /* 817 * This is simply an invalid value. If someone wants to 818 * do fancy address space manipulations, mmap and munmap 819 * can do most of what the user would want. 820 */ 821 return EINVAL; 822 } 823 824 old = base + ctob(vm->vm_dsize); 825 826 if (new > old) { 827 vm_size_t diff; 828 diff = new - old; 829 PROC_LOCK(p); 830 if (vm->vm_map.size + diff > lim_cur(p, RLIMIT_VMEM)) { 831 PROC_UNLOCK(p); 832 return(ENOMEM); 833 } 834 PROC_UNLOCK(p); 835 rv = vm_map_find(&vm->vm_map, NULL, 0, &old, diff, FALSE, 836 VM_PROT_ALL, VM_PROT_ALL, 0); 837 if (rv != KERN_SUCCESS) { 838 return (ENOMEM); 839 } 840 vm->vm_dsize += btoc(diff); 841 } else if (new < old) { 842 rv = vm_map_remove(&vm->vm_map, new, old); 843 if (rv != KERN_SUCCESS) { 844 return (ENOMEM); 845 } 846 vm->vm_dsize -= btoc(old - new); 847 } 848 849 return (0); 850 } 851 852 static __inline clock_t 853 timeval_to_clock_t(tv) 854 struct timeval *tv; 855 { 856 return tv->tv_sec * hz + tv->tv_usec / (1000000 / hz); 857 } 858 859 860 int 861 svr4_sys_times(td, uap) 862 struct thread *td; 863 struct svr4_sys_times_args *uap; 864 { 865 int error, *retval = td->td_retval; 866 struct tms tms; 867 struct timeval t; 868 struct rusage *ru; 869 struct rusage r; 870 struct getrusage_args ga; 871 872 caddr_t sg = stackgap_init(); 873 ru = stackgap_alloc(&sg, sizeof(struct rusage)); 874 875 ga.who = RUSAGE_SELF; 876 ga.rusage = ru; 877 878 error = getrusage(td, &ga); 879 if (error) 880 return error; 881 882 if ((error = copyin(ru, &r, sizeof r)) != 0) 883 return error; 884 885 tms.tms_utime = timeval_to_clock_t(&r.ru_utime); 886 tms.tms_stime = timeval_to_clock_t(&r.ru_stime); 887 888 ga.who = RUSAGE_CHILDREN; 889 error = getrusage(td, &ga); 890 if (error) 891 return error; 892 893 if ((error = copyin(ru, &r, sizeof r)) != 0) 894 return error; 895 896 tms.tms_cutime = timeval_to_clock_t(&r.ru_utime); 897 tms.tms_cstime = timeval_to_clock_t(&r.ru_stime); 898 899 microtime(&t); 900 *retval = timeval_to_clock_t(&t); 901 902 return copyout(&tms, uap->tp, sizeof(tms)); 903 } 904 905 906 int 907 svr4_sys_ulimit(td, uap) 908 struct thread *td; 909 struct svr4_sys_ulimit_args *uap; 910 { 911 int *retval = td->td_retval; 912 int error; 913 914 switch (uap->cmd) { 915 case SVR4_GFILLIM: 916 PROC_LOCK(td->td_proc); 917 *retval = lim_cur(td->td_proc, RLIMIT_FSIZE) / 512; 918 PROC_UNLOCK(td->td_proc); 919 if (*retval == -1) 920 *retval = 0x7fffffff; 921 return 0; 922 923 case SVR4_SFILLIM: 924 { 925 struct rlimit krl; 926 927 krl.rlim_cur = uap->newlimit * 512; 928 PROC_LOCK(td->td_proc); 929 krl.rlim_max = lim_max(td->td_proc, RLIMIT_FSIZE); 930 PROC_UNLOCK(td->td_proc); 931 932 error = kern_setrlimit(td, RLIMIT_FSIZE, &krl); 933 if (error) 934 return error; 935 936 PROC_LOCK(td->td_proc); 937 *retval = lim_cur(td->td_proc, RLIMIT_FSIZE); 938 PROC_UNLOCK(td->td_proc); 939 if (*retval == -1) 940 *retval = 0x7fffffff; 941 return 0; 942 } 943 944 case SVR4_GMEMLIM: 945 { 946 struct vmspace *vm = td->td_proc->p_vmspace; 947 register_t r; 948 949 PROC_LOCK(td->td_proc); 950 r = lim_cur(td->td_proc, RLIMIT_DATA); 951 PROC_UNLOCK(td->td_proc); 952 953 if (r == -1) 954 r = 0x7fffffff; 955 mtx_lock(&Giant); /* XXX */ 956 r += (long) vm->vm_daddr; 957 mtx_unlock(&Giant); 958 if (r < 0) 959 r = 0x7fffffff; 960 *retval = r; 961 return 0; 962 } 963 964 case SVR4_GDESLIM: 965 PROC_LOCK(td->td_proc); 966 *retval = lim_cur(td->td_proc, RLIMIT_NOFILE); 967 PROC_UNLOCK(td->td_proc); 968 if (*retval == -1) 969 *retval = 0x7fffffff; 970 return 0; 971 972 default: 973 return EINVAL; 974 } 975 } 976 977 static struct proc * 978 svr4_pfind(pid) 979 pid_t pid; 980 { 981 struct proc *p; 982 983 /* look in the live processes */ 984 if ((p = pfind(pid)) == NULL) 985 /* look in the zombies */ 986 p = zpfind(pid); 987 988 return p; 989 } 990 991 992 int 993 svr4_sys_pgrpsys(td, uap) 994 struct thread *td; 995 struct svr4_sys_pgrpsys_args *uap; 996 { 997 int *retval = td->td_retval; 998 struct proc *p = td->td_proc; 999 1000 switch (uap->cmd) { 1001 case 1: /* setpgrp() */ 1002 /* 1003 * SVR4 setpgrp() (which takes no arguments) has the 1004 * semantics that the session ID is also created anew, so 1005 * in almost every sense, setpgrp() is identical to 1006 * setsid() for SVR4. (Under BSD, the difference is that 1007 * a setpgid(0,0) will not create a new session.) 1008 */ 1009 setsid(td, NULL); 1010 /*FALLTHROUGH*/ 1011 1012 case 0: /* getpgrp() */ 1013 PROC_LOCK(p); 1014 *retval = p->p_pgrp->pg_id; 1015 PROC_UNLOCK(p); 1016 return 0; 1017 1018 case 2: /* getsid(pid) */ 1019 if (uap->pid == 0) 1020 PROC_LOCK(p); 1021 else if ((p = svr4_pfind(uap->pid)) == NULL) 1022 return ESRCH; 1023 /* 1024 * This has already been initialized to the pid of 1025 * the session leader. 1026 */ 1027 *retval = (register_t) p->p_session->s_sid; 1028 PROC_UNLOCK(p); 1029 return 0; 1030 1031 case 3: /* setsid() */ 1032 return setsid(td, NULL); 1033 1034 case 4: /* getpgid(pid) */ 1035 1036 if (uap->pid == 0) 1037 PROC_LOCK(p); 1038 else if ((p = svr4_pfind(uap->pid)) == NULL) 1039 return ESRCH; 1040 1041 *retval = (int) p->p_pgrp->pg_id; 1042 PROC_UNLOCK(p); 1043 return 0; 1044 1045 case 5: /* setpgid(pid, pgid); */ 1046 { 1047 struct setpgid_args sa; 1048 1049 sa.pid = uap->pid; 1050 sa.pgid = uap->pgid; 1051 return setpgid(td, &sa); 1052 } 1053 1054 default: 1055 return EINVAL; 1056 } 1057 } 1058 1059 #define syscallarg(x) union { x datum; register_t pad; } 1060 1061 struct svr4_hrtcntl_args { 1062 int cmd; 1063 int fun; 1064 int clk; 1065 svr4_hrt_interval_t * iv; 1066 svr4_hrt_time_t * ti; 1067 }; 1068 1069 1070 static int 1071 svr4_hrtcntl(td, uap, retval) 1072 struct thread *td; 1073 struct svr4_hrtcntl_args *uap; 1074 register_t *retval; 1075 { 1076 switch (uap->fun) { 1077 case SVR4_HRT_CNTL_RES: 1078 DPRINTF(("htrcntl(RES)\n")); 1079 *retval = SVR4_HRT_USEC; 1080 return 0; 1081 1082 case SVR4_HRT_CNTL_TOFD: 1083 DPRINTF(("htrcntl(TOFD)\n")); 1084 { 1085 struct timeval tv; 1086 svr4_hrt_time_t t; 1087 if (uap->clk != SVR4_HRT_CLK_STD) { 1088 DPRINTF(("clk == %d\n", uap->clk)); 1089 return EINVAL; 1090 } 1091 if (uap->ti == NULL) { 1092 DPRINTF(("ti NULL\n")); 1093 return EINVAL; 1094 } 1095 microtime(&tv); 1096 t.h_sec = tv.tv_sec; 1097 t.h_rem = tv.tv_usec; 1098 t.h_res = SVR4_HRT_USEC; 1099 return copyout(&t, uap->ti, sizeof(t)); 1100 } 1101 1102 case SVR4_HRT_CNTL_START: 1103 DPRINTF(("htrcntl(START)\n")); 1104 return ENOSYS; 1105 1106 case SVR4_HRT_CNTL_GET: 1107 DPRINTF(("htrcntl(GET)\n")); 1108 return ENOSYS; 1109 default: 1110 DPRINTF(("Bad htrcntl command %d\n", uap->fun)); 1111 return ENOSYS; 1112 } 1113 } 1114 1115 1116 int 1117 svr4_sys_hrtsys(td, uap) 1118 struct thread *td; 1119 struct svr4_sys_hrtsys_args *uap; 1120 { 1121 int *retval = td->td_retval; 1122 1123 switch (uap->cmd) { 1124 case SVR4_HRT_CNTL: 1125 return svr4_hrtcntl(td, (struct svr4_hrtcntl_args *) uap, 1126 retval); 1127 1128 case SVR4_HRT_ALRM: 1129 DPRINTF(("hrtalarm\n")); 1130 return ENOSYS; 1131 1132 case SVR4_HRT_SLP: 1133 DPRINTF(("hrtsleep\n")); 1134 return ENOSYS; 1135 1136 case SVR4_HRT_CAN: 1137 DPRINTF(("hrtcancel\n")); 1138 return ENOSYS; 1139 1140 default: 1141 DPRINTF(("Bad hrtsys command %d\n", uap->cmd)); 1142 return EINVAL; 1143 } 1144 } 1145 1146 1147 static int 1148 svr4_setinfo(p, st, s) 1149 struct proc *p; 1150 int st; 1151 svr4_siginfo_t *s; 1152 { 1153 svr4_siginfo_t i; 1154 int sig; 1155 1156 memset(&i, 0, sizeof(i)); 1157 1158 i.si_signo = SVR4_SIGCHLD; 1159 i.si_errno = 0; /* XXX? */ 1160 1161 if (p) { 1162 i.si_pid = p->p_pid; 1163 mtx_lock_spin(&sched_lock); 1164 if (p->p_state == PRS_ZOMBIE) { 1165 i.si_stime = p->p_ru->ru_stime.tv_sec; 1166 i.si_utime = p->p_ru->ru_utime.tv_sec; 1167 } 1168 else { 1169 i.si_stime = p->p_stats->p_ru.ru_stime.tv_sec; 1170 i.si_utime = p->p_stats->p_ru.ru_utime.tv_sec; 1171 } 1172 mtx_unlock_spin(&sched_lock); 1173 } 1174 1175 if (WIFEXITED(st)) { 1176 i.si_status = WEXITSTATUS(st); 1177 i.si_code = SVR4_CLD_EXITED; 1178 } else if (WIFSTOPPED(st)) { 1179 sig = WSTOPSIG(st); 1180 if (sig >= 0 && sig < NSIG) 1181 i.si_status = SVR4_BSD2SVR4_SIG(sig); 1182 1183 if (i.si_status == SVR4_SIGCONT) 1184 i.si_code = SVR4_CLD_CONTINUED; 1185 else 1186 i.si_code = SVR4_CLD_STOPPED; 1187 } else { 1188 sig = WTERMSIG(st); 1189 if (sig >= 0 && sig < NSIG) 1190 i.si_status = SVR4_BSD2SVR4_SIG(sig); 1191 1192 if (WCOREDUMP(st)) 1193 i.si_code = SVR4_CLD_DUMPED; 1194 else 1195 i.si_code = SVR4_CLD_KILLED; 1196 } 1197 1198 DPRINTF(("siginfo [pid %ld signo %d code %d errno %d status %d]\n", 1199 i.si_pid, i.si_signo, i.si_code, i.si_errno, i.si_status)); 1200 1201 return copyout(&i, s, sizeof(i)); 1202 } 1203 1204 1205 int 1206 svr4_sys_waitsys(td, uap) 1207 struct thread *td; 1208 struct svr4_sys_waitsys_args *uap; 1209 { 1210 int nfound; 1211 int error, *retval = td->td_retval; 1212 struct proc *q, *t; 1213 1214 1215 switch (uap->grp) { 1216 case SVR4_P_PID: 1217 break; 1218 1219 case SVR4_P_PGID: 1220 PROC_LOCK(td->td_proc); 1221 uap->id = -td->td_proc->p_pgid; 1222 PROC_UNLOCK(td->td_proc); 1223 break; 1224 1225 case SVR4_P_ALL: 1226 uap->id = WAIT_ANY; 1227 break; 1228 1229 default: 1230 return EINVAL; 1231 } 1232 1233 DPRINTF(("waitsys(%d, %d, %p, %x)\n", 1234 uap->grp, uap->id, 1235 uap->info, uap->options)); 1236 1237 loop: 1238 nfound = 0; 1239 sx_slock(&proctree_lock); 1240 LIST_FOREACH(q, &td->td_proc->p_children, p_sibling) { 1241 PROC_LOCK(q); 1242 if (uap->id != WAIT_ANY && 1243 q->p_pid != uap->id && 1244 q->p_pgid != -uap->id) { 1245 PROC_UNLOCK(q); 1246 DPRINTF(("pid %d pgid %d != %d\n", q->p_pid, 1247 q->p_pgid, uap->id)); 1248 continue; 1249 } 1250 nfound++; 1251 if ((q->p_state == PRS_ZOMBIE) && 1252 ((uap->options & (SVR4_WEXITED|SVR4_WTRAPPED)))) { 1253 PROC_UNLOCK(q); 1254 sx_sunlock(&proctree_lock); 1255 *retval = 0; 1256 DPRINTF(("found %d\n", q->p_pid)); 1257 error = svr4_setinfo(q, q->p_xstat, uap->info); 1258 if (error != 0) 1259 return error; 1260 1261 1262 if ((uap->options & SVR4_WNOWAIT)) { 1263 DPRINTF(("Don't wait\n")); 1264 return 0; 1265 } 1266 1267 /* 1268 * If we got the child via ptrace(2) or procfs, and 1269 * the parent is different (meaning the process was 1270 * attached, rather than run as a child), then we need 1271 * to give it back to the old parent, and send the 1272 * parent a SIGCHLD. The rest of the cleanup will be 1273 * done when the old parent waits on the child. 1274 */ 1275 sx_xlock(&proctree_lock); 1276 PROC_LOCK(q); 1277 if (q->p_flag & P_TRACED) { 1278 if (q->p_oppid != q->p_pptr->p_pid) { 1279 PROC_UNLOCK(q); 1280 t = pfind(q->p_oppid); 1281 if (t == NULL) { 1282 t = initproc; 1283 PROC_LOCK(initproc); 1284 } 1285 PROC_LOCK(q); 1286 proc_reparent(q, t); 1287 q->p_oppid = 0; 1288 q->p_flag &= ~(P_TRACED | P_WAITED); 1289 PROC_UNLOCK(q); 1290 psignal(t, SIGCHLD); 1291 wakeup(t); 1292 PROC_UNLOCK(t); 1293 sx_xunlock(&proctree_lock); 1294 return 0; 1295 } 1296 } 1297 PROC_UNLOCK(q); 1298 sx_xunlock(&proctree_lock); 1299 q->p_xstat = 0; 1300 ruadd(&td->td_proc->p_stats->p_cru, q->p_ru); 1301 FREE(q->p_ru, M_ZOMBIE); 1302 q->p_ru = 0; 1303 1304 /* 1305 * Decrement the count of procs running with this uid. 1306 */ 1307 (void)chgproccnt(q->p_ucred->cr_ruidinfo, -1, 0); 1308 1309 /* 1310 * Release reference to text vnode. 1311 */ 1312 if (q->p_textvp) 1313 vrele(q->p_textvp); 1314 1315 /* 1316 * Free up credentials. 1317 */ 1318 crfree(q->p_ucred); 1319 q->p_ucred = NULL; 1320 1321 /* 1322 * Remove unused arguments 1323 */ 1324 pargs_drop(q->p_args); 1325 PROC_UNLOCK(q); 1326 1327 /* 1328 * Finally finished with old proc entry. 1329 * Unlink it from its process group and free it. 1330 */ 1331 sx_xlock(&proctree_lock); 1332 leavepgrp(q); 1333 1334 sx_xlock(&allproc_lock); 1335 LIST_REMOVE(q, p_list); /* off zombproc */ 1336 sx_xunlock(&allproc_lock); 1337 1338 LIST_REMOVE(q, p_sibling); 1339 sx_xunlock(&proctree_lock); 1340 1341 PROC_LOCK(q); 1342 sigacts_free(q->p_sigacts); 1343 q->p_sigacts = NULL; 1344 PROC_UNLOCK(q); 1345 1346 /* 1347 * Give machine-dependent layer a chance 1348 * to free anything that cpu_exit couldn't 1349 * release while still running in process context. 1350 */ 1351 vm_waitproc(q); 1352 #if defined(__NetBSD__) 1353 pool_put(&proc_pool, q); 1354 #endif 1355 #ifdef __FreeBSD__ 1356 mtx_destroy(&q->p_mtx); 1357 #ifdef MAC 1358 mac_destroy_proc(q); 1359 #endif 1360 uma_zfree(proc_zone, q); 1361 #endif 1362 nprocs--; 1363 return 0; 1364 } 1365 /* XXXKSE this needs clarification */ 1366 if (P_SHOULDSTOP(q) && ((q->p_flag & P_WAITED) == 0) && 1367 (q->p_flag & P_TRACED || 1368 (uap->options & (SVR4_WSTOPPED|SVR4_WCONTINUED)))) { 1369 DPRINTF(("jobcontrol %d\n", q->p_pid)); 1370 if (((uap->options & SVR4_WNOWAIT)) == 0) 1371 q->p_flag |= P_WAITED; 1372 PROC_UNLOCK(q); 1373 *retval = 0; 1374 return svr4_setinfo(q, W_STOPCODE(q->p_xstat), 1375 uap->info); 1376 } 1377 PROC_UNLOCK(q); 1378 } 1379 1380 if (nfound == 0) 1381 return ECHILD; 1382 1383 if (uap->options & SVR4_WNOHANG) { 1384 *retval = 0; 1385 if ((error = svr4_setinfo(NULL, 0, uap->info)) != 0) 1386 return error; 1387 return 0; 1388 } 1389 1390 if ((error = tsleep(td->td_proc, PWAIT | PCATCH, "svr4_wait", 0)) != 0) 1391 return error; 1392 goto loop; 1393 } 1394 1395 1396 static void 1397 bsd_statfs_to_svr4_statvfs(bfs, sfs) 1398 const struct statfs *bfs; 1399 struct svr4_statvfs *sfs; 1400 { 1401 sfs->f_bsize = bfs->f_iosize; /* XXX */ 1402 sfs->f_frsize = bfs->f_bsize; 1403 sfs->f_blocks = bfs->f_blocks; 1404 sfs->f_bfree = bfs->f_bfree; 1405 sfs->f_bavail = bfs->f_bavail; 1406 sfs->f_files = bfs->f_files; 1407 sfs->f_ffree = bfs->f_ffree; 1408 sfs->f_favail = bfs->f_ffree; 1409 sfs->f_fsid = bfs->f_fsid.val[0]; 1410 memcpy(sfs->f_basetype, bfs->f_fstypename, sizeof(sfs->f_basetype)); 1411 sfs->f_flag = 0; 1412 if (bfs->f_flags & MNT_RDONLY) 1413 sfs->f_flag |= SVR4_ST_RDONLY; 1414 if (bfs->f_flags & MNT_NOSUID) 1415 sfs->f_flag |= SVR4_ST_NOSUID; 1416 sfs->f_namemax = MAXNAMLEN; 1417 memcpy(sfs->f_fstr, bfs->f_fstypename, sizeof(sfs->f_fstr)); /* XXX */ 1418 memset(sfs->f_filler, 0, sizeof(sfs->f_filler)); 1419 } 1420 1421 1422 static void 1423 bsd_statfs_to_svr4_statvfs64(bfs, sfs) 1424 const struct statfs *bfs; 1425 struct svr4_statvfs64 *sfs; 1426 { 1427 sfs->f_bsize = bfs->f_iosize; /* XXX */ 1428 sfs->f_frsize = bfs->f_bsize; 1429 sfs->f_blocks = bfs->f_blocks; 1430 sfs->f_bfree = bfs->f_bfree; 1431 sfs->f_bavail = bfs->f_bavail; 1432 sfs->f_files = bfs->f_files; 1433 sfs->f_ffree = bfs->f_ffree; 1434 sfs->f_favail = bfs->f_ffree; 1435 sfs->f_fsid = bfs->f_fsid.val[0]; 1436 memcpy(sfs->f_basetype, bfs->f_fstypename, sizeof(sfs->f_basetype)); 1437 sfs->f_flag = 0; 1438 if (bfs->f_flags & MNT_RDONLY) 1439 sfs->f_flag |= SVR4_ST_RDONLY; 1440 if (bfs->f_flags & MNT_NOSUID) 1441 sfs->f_flag |= SVR4_ST_NOSUID; 1442 sfs->f_namemax = MAXNAMLEN; 1443 memcpy(sfs->f_fstr, bfs->f_fstypename, sizeof(sfs->f_fstr)); /* XXX */ 1444 memset(sfs->f_filler, 0, sizeof(sfs->f_filler)); 1445 } 1446 1447 1448 int 1449 svr4_sys_statvfs(td, uap) 1450 struct thread *td; 1451 struct svr4_sys_statvfs_args *uap; 1452 { 1453 struct statfs_args fs_args; 1454 caddr_t sg = stackgap_init(); 1455 struct statfs *fs = stackgap_alloc(&sg, sizeof(struct statfs)); 1456 struct statfs bfs; 1457 struct svr4_statvfs sfs; 1458 int error; 1459 1460 CHECKALTEXIST(td, &sg, uap->path); 1461 fs_args.path = uap->path; 1462 fs_args.buf = fs; 1463 1464 if ((error = statfs(td, &fs_args)) != 0) 1465 return error; 1466 1467 if ((error = copyin(fs, &bfs, sizeof(bfs))) != 0) 1468 return error; 1469 1470 bsd_statfs_to_svr4_statvfs(&bfs, &sfs); 1471 1472 return copyout(&sfs, uap->fs, sizeof(sfs)); 1473 } 1474 1475 1476 int 1477 svr4_sys_fstatvfs(td, uap) 1478 struct thread *td; 1479 struct svr4_sys_fstatvfs_args *uap; 1480 { 1481 struct fstatfs_args fs_args; 1482 caddr_t sg = stackgap_init(); 1483 struct statfs *fs = stackgap_alloc(&sg, sizeof(struct statfs)); 1484 struct statfs bfs; 1485 struct svr4_statvfs sfs; 1486 int error; 1487 1488 fs_args.fd = uap->fd; 1489 fs_args.buf = fs; 1490 1491 if ((error = fstatfs(td, &fs_args)) != 0) 1492 return error; 1493 1494 if ((error = copyin(fs, &bfs, sizeof(bfs))) != 0) 1495 return error; 1496 1497 bsd_statfs_to_svr4_statvfs(&bfs, &sfs); 1498 1499 return copyout(&sfs, uap->fs, sizeof(sfs)); 1500 } 1501 1502 1503 int 1504 svr4_sys_statvfs64(td, uap) 1505 struct thread *td; 1506 struct svr4_sys_statvfs64_args *uap; 1507 { 1508 struct statfs_args fs_args; 1509 caddr_t sg = stackgap_init(); 1510 struct statfs *fs = stackgap_alloc(&sg, sizeof(struct statfs)); 1511 struct statfs bfs; 1512 struct svr4_statvfs64 sfs; 1513 int error; 1514 1515 CHECKALTEXIST(td, &sg, uap->path); 1516 fs_args.path = uap->path; 1517 fs_args.buf = fs; 1518 1519 if ((error = statfs(td, &fs_args)) != 0) 1520 return error; 1521 1522 if ((error = copyin(fs, &bfs, sizeof(bfs))) != 0) 1523 return error; 1524 1525 bsd_statfs_to_svr4_statvfs64(&bfs, &sfs); 1526 1527 return copyout(&sfs, uap->fs, sizeof(sfs)); 1528 } 1529 1530 1531 int 1532 svr4_sys_fstatvfs64(td, uap) 1533 struct thread *td; 1534 struct svr4_sys_fstatvfs64_args *uap; 1535 { 1536 struct fstatfs_args fs_args; 1537 caddr_t sg = stackgap_init(); 1538 struct statfs *fs = stackgap_alloc(&sg, sizeof(struct statfs)); 1539 struct statfs bfs; 1540 struct svr4_statvfs64 sfs; 1541 int error; 1542 1543 fs_args.fd = uap->fd; 1544 fs_args.buf = fs; 1545 1546 if ((error = fstatfs(td, &fs_args)) != 0) 1547 return error; 1548 1549 if ((error = copyin(fs, &bfs, sizeof(bfs))) != 0) 1550 return error; 1551 1552 bsd_statfs_to_svr4_statvfs64(&bfs, &sfs); 1553 1554 return copyout(&sfs, uap->fs, sizeof(sfs)); 1555 } 1556 1557 int 1558 svr4_sys_alarm(td, uap) 1559 struct thread *td; 1560 struct svr4_sys_alarm_args *uap; 1561 { 1562 int error; 1563 struct itimerval *itp, *oitp; 1564 struct setitimer_args sa; 1565 caddr_t sg = stackgap_init(); 1566 1567 itp = stackgap_alloc(&sg, sizeof(*itp)); 1568 oitp = stackgap_alloc(&sg, sizeof(*oitp)); 1569 timevalclear(&itp->it_interval); 1570 itp->it_value.tv_sec = uap->sec; 1571 itp->it_value.tv_usec = 0; 1572 1573 sa.which = ITIMER_REAL; 1574 sa.itv = itp; 1575 sa.oitv = oitp; 1576 error = setitimer(td, &sa); 1577 if (error) 1578 return error; 1579 if (oitp->it_value.tv_usec) 1580 oitp->it_value.tv_sec++; 1581 td->td_retval[0] = oitp->it_value.tv_sec; 1582 return 0; 1583 1584 } 1585 1586 int 1587 svr4_sys_gettimeofday(td, uap) 1588 struct thread *td; 1589 struct svr4_sys_gettimeofday_args *uap; 1590 { 1591 if (uap->tp) { 1592 struct timeval atv; 1593 1594 microtime(&atv); 1595 return copyout(&atv, uap->tp, sizeof (atv)); 1596 } 1597 1598 return 0; 1599 } 1600 1601 int 1602 svr4_sys_facl(td, uap) 1603 struct thread *td; 1604 struct svr4_sys_facl_args *uap; 1605 { 1606 int *retval; 1607 1608 retval = td->td_retval; 1609 *retval = 0; 1610 1611 switch (uap->cmd) { 1612 case SVR4_SYS_SETACL: 1613 /* We don't support acls on any filesystem */ 1614 return ENOSYS; 1615 1616 case SVR4_SYS_GETACL: 1617 return copyout(retval, &uap->num, 1618 sizeof(uap->num)); 1619 1620 case SVR4_SYS_GETACLCNT: 1621 return 0; 1622 1623 default: 1624 return EINVAL; 1625 } 1626 } 1627 1628 1629 int 1630 svr4_sys_acl(td, uap) 1631 struct thread *td; 1632 struct svr4_sys_acl_args *uap; 1633 { 1634 /* XXX: for now the same */ 1635 return svr4_sys_facl(td, (struct svr4_sys_facl_args *)uap); 1636 } 1637 1638 int 1639 svr4_sys_auditsys(td, uap) 1640 struct thread *td; 1641 struct svr4_sys_auditsys_args *uap; 1642 { 1643 /* 1644 * XXX: Big brother is *not* watching. 1645 */ 1646 return 0; 1647 } 1648 1649 int 1650 svr4_sys_memcntl(td, uap) 1651 struct thread *td; 1652 struct svr4_sys_memcntl_args *uap; 1653 { 1654 switch (uap->cmd) { 1655 case SVR4_MC_SYNC: 1656 { 1657 struct msync_args msa; 1658 1659 msa.addr = uap->addr; 1660 msa.len = uap->len; 1661 msa.flags = (int)uap->arg; 1662 1663 return msync(td, &msa); 1664 } 1665 case SVR4_MC_ADVISE: 1666 { 1667 struct madvise_args maa; 1668 1669 maa.addr = uap->addr; 1670 maa.len = uap->len; 1671 maa.behav = (int)uap->arg; 1672 1673 return madvise(td, &maa); 1674 } 1675 case SVR4_MC_LOCK: 1676 case SVR4_MC_UNLOCK: 1677 case SVR4_MC_LOCKAS: 1678 case SVR4_MC_UNLOCKAS: 1679 return EOPNOTSUPP; 1680 default: 1681 return ENOSYS; 1682 } 1683 } 1684 1685 1686 int 1687 svr4_sys_nice(td, uap) 1688 struct thread *td; 1689 struct svr4_sys_nice_args *uap; 1690 { 1691 struct setpriority_args ap; 1692 int error; 1693 1694 ap.which = PRIO_PROCESS; 1695 ap.who = 0; 1696 ap.prio = uap->prio; 1697 1698 if ((error = setpriority(td, &ap)) != 0) 1699 return error; 1700 1701 /* the cast is stupid, but the structures are the same */ 1702 if ((error = getpriority(td, (struct getpriority_args *)&ap)) != 0) 1703 return error; 1704 1705 return 0; 1706 } 1707 1708 int 1709 svr4_sys_resolvepath(td, uap) 1710 struct thread *td; 1711 struct svr4_sys_resolvepath_args *uap; 1712 { 1713 struct nameidata nd; 1714 int error, *retval = td->td_retval; 1715 unsigned int ncopy; 1716 1717 NDINIT(&nd, LOOKUP, NOFOLLOW | SAVENAME, UIO_USERSPACE, 1718 uap->path, td); 1719 1720 if ((error = namei(&nd)) != 0) 1721 return error; 1722 1723 ncopy = min(uap->bufsiz, strlen(nd.ni_cnd.cn_pnbuf) + 1); 1724 if ((error = copyout(nd.ni_cnd.cn_pnbuf, uap->buf, ncopy)) != 0) 1725 goto bad; 1726 1727 *retval = ncopy; 1728 bad: 1729 NDFREE(&nd, NDF_ONLY_PNBUF); 1730 vput(nd.ni_vp); 1731 return error; 1732 }
Cache object: d0ccb3c1ed9c2fb6290c5cbfbd5cc885
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