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FreeBSD/Linux Kernel Cross Reference
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: releng/6.3/sys/compat/svr4/svr4_misc.c 147818 2005-07-07 19:26:43Z jhb $"); 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/imgact.h> 46 #include <sys/kernel.h> 47 #include <sys/lock.h> 48 #include <sys/mac.h> 49 #include <sys/malloc.h> 50 #include <sys/file.h> /* Must come after sys/malloc.h */ 51 #include <sys/mman.h> 52 #include <sys/mount.h> 53 #include <sys/msg.h> 54 #include <sys/mutex.h> 55 #include <sys/namei.h> 56 #include <sys/proc.h> 57 #include <sys/ptrace.h> 58 #include <sys/resource.h> 59 #include <sys/resourcevar.h> 60 #include <sys/sem.h> 61 #include <sys/signalvar.h> 62 #include <sys/stat.h> 63 #include <sys/sx.h> 64 #include <sys/syscallsubr.h> 65 #include <sys/sysproto.h> 66 #include <sys/time.h> 67 #include <sys/times.h> 68 #include <sys/uio.h> 69 #include <sys/vnode.h> 70 #include <sys/wait.h> 71 72 #include <compat/svr4/svr4.h> 73 #include <compat/svr4/svr4_types.h> 74 #include <compat/svr4/svr4_signal.h> 75 #include <compat/svr4/svr4_proto.h> 76 #include <compat/svr4/svr4_util.h> 77 #include <compat/svr4/svr4_sysconfig.h> 78 #include <compat/svr4/svr4_dirent.h> 79 #include <compat/svr4/svr4_acl.h> 80 #include <compat/svr4/svr4_ulimit.h> 81 #include <compat/svr4/svr4_statvfs.h> 82 #include <compat/svr4/svr4_hrt.h> 83 #include <compat/svr4/svr4_mman.h> 84 #include <compat/svr4/svr4_wait.h> 85 86 #include <machine/vmparam.h> 87 #include <vm/vm.h> 88 #include <vm/vm_param.h> 89 #include <vm/vm_map.h> 90 #if defined(__FreeBSD__) 91 #include <vm/uma.h> 92 #include <vm/vm_extern.h> 93 #endif 94 95 #if defined(NetBSD) 96 # if defined(UVM) 97 # include <uvm/uvm_extern.h> 98 # endif 99 #endif 100 101 #define BSD_DIRENT(cp) ((struct dirent *)(cp)) 102 103 static int svr4_mknod(struct thread *, register_t *, char *, 104 svr4_mode_t, svr4_dev_t); 105 106 static __inline clock_t timeval_to_clock_t(struct timeval *); 107 static int svr4_setinfo (struct proc *, int, svr4_siginfo_t *); 108 109 struct svr4_hrtcntl_args; 110 static int svr4_hrtcntl (struct thread *, struct svr4_hrtcntl_args *, 111 register_t *); 112 static void bsd_statfs_to_svr4_statvfs(const struct statfs *, 113 struct svr4_statvfs *); 114 static void bsd_statfs_to_svr4_statvfs64(const struct statfs *, 115 struct svr4_statvfs64 *); 116 static struct proc *svr4_pfind(pid_t pid); 117 118 /* BOGUS noop */ 119 #if defined(BOGUS) 120 int 121 svr4_sys_setitimer(td, uap) 122 register struct thread *td; 123 struct svr4_sys_setitimer_args *uap; 124 { 125 td->td_retval[0] = 0; 126 return 0; 127 } 128 #endif 129 130 int 131 svr4_sys_wait(td, uap) 132 struct thread *td; 133 struct svr4_sys_wait_args *uap; 134 { 135 int error, st, sig; 136 137 error = kern_wait(td, WAIT_ANY, &st, 0, NULL); 138 if (error) 139 return (error); 140 141 if (WIFSIGNALED(st)) { 142 sig = WTERMSIG(st); 143 if (sig >= 0 && sig < NSIG) 144 st = (st & ~0177) | SVR4_BSD2SVR4_SIG(sig); 145 } else if (WIFSTOPPED(st)) { 146 sig = WSTOPSIG(st); 147 if (sig >= 0 && sig < NSIG) 148 st = (st & ~0xff00) | (SVR4_BSD2SVR4_SIG(sig) << 8); 149 } 150 151 /* 152 * It looks like wait(2) on svr4/solaris/2.4 returns 153 * the status in retval[1], and the pid on retval[0]. 154 */ 155 td->td_retval[1] = st; 156 157 if (uap->status) 158 error = copyout(&st, uap->status, sizeof(st)); 159 160 return (error); 161 } 162 163 int 164 svr4_sys_execv(td, uap) 165 struct thread *td; 166 struct svr4_sys_execv_args *uap; 167 { 168 struct image_args eargs; 169 char *path; 170 int error; 171 172 CHECKALTEXIST(td, uap->path, &path); 173 174 error = exec_copyin_args(&eargs, path, UIO_SYSSPACE, uap->argp, NULL); 175 free(path, M_TEMP); 176 if (error == 0) 177 error = kern_execve(td, &eargs, NULL); 178 exec_free_args(&eargs); 179 return (error); 180 } 181 182 int 183 svr4_sys_execve(td, uap) 184 struct thread *td; 185 struct svr4_sys_execve_args *uap; 186 { 187 struct image_args eargs; 188 char *path; 189 int error; 190 191 CHECKALTEXIST(td, uap->path, &path); 192 193 error = exec_copyin_args(&eargs, path, UIO_SYSSPACE, uap->argp, 194 uap->envp); 195 free(path, M_TEMP); 196 if (error == 0) 197 error = kern_execve(td, &eargs, NULL); 198 exec_free_args(&eargs); 199 return (error); 200 } 201 202 int 203 svr4_sys_time(td, v) 204 struct thread *td; 205 struct svr4_sys_time_args *v; 206 { 207 struct svr4_sys_time_args *uap = v; 208 int error = 0; 209 struct timeval tv; 210 211 microtime(&tv); 212 if (uap->t) 213 error = copyout(&tv.tv_sec, uap->t, 214 sizeof(*(uap->t))); 215 td->td_retval[0] = (int) tv.tv_sec; 216 217 return error; 218 } 219 220 221 /* 222 * Read SVR4-style directory entries. We suck them into kernel space so 223 * that they can be massaged before being copied out to user code. 224 * 225 * This code is ported from the Linux emulator: Changes to the VFS interface 226 * between FreeBSD and NetBSD have made it simpler to port it from there than 227 * to adapt the NetBSD version. 228 */ 229 int 230 svr4_sys_getdents64(td, uap) 231 struct thread *td; 232 struct svr4_sys_getdents64_args *uap; 233 { 234 register struct dirent *bdp; 235 struct vnode *vp; 236 caddr_t inp, buf; /* BSD-format */ 237 int len, reclen; /* BSD-format */ 238 caddr_t outp; /* SVR4-format */ 239 int resid, svr4reclen=0; /* SVR4-format */ 240 struct file *fp; 241 struct uio auio; 242 struct iovec aiov; 243 off_t off; 244 struct svr4_dirent64 svr4_dirent; 245 int buflen, error, eofflag, nbytes, justone; 246 u_long *cookies = NULL, *cookiep; 247 int ncookies; 248 249 DPRINTF(("svr4_sys_getdents64(%d, *, %d)\n", 250 uap->fd, uap->nbytes)); 251 if ((error = getvnode(td->td_proc->p_fd, uap->fd, &fp)) != 0) { 252 return (error); 253 } 254 255 if ((fp->f_flag & FREAD) == 0) { 256 fdrop(fp, td); 257 return (EBADF); 258 } 259 260 vp = fp->f_vnode; 261 262 if (vp->v_type != VDIR) { 263 fdrop(fp, td); 264 return (EINVAL); 265 } 266 267 nbytes = uap->nbytes; 268 if (nbytes == 1) { 269 nbytes = sizeof (struct svr4_dirent64); 270 justone = 1; 271 } 272 else 273 justone = 0; 274 275 off = fp->f_offset; 276 #define DIRBLKSIZ 512 /* XXX we used to use ufs's DIRBLKSIZ */ 277 buflen = max(DIRBLKSIZ, nbytes); 278 buflen = min(buflen, MAXBSIZE); 279 buf = malloc(buflen, M_TEMP, M_WAITOK); 280 vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td); 281 again: 282 aiov.iov_base = buf; 283 aiov.iov_len = buflen; 284 auio.uio_iov = &aiov; 285 auio.uio_iovcnt = 1; 286 auio.uio_rw = UIO_READ; 287 auio.uio_segflg = UIO_SYSSPACE; 288 auio.uio_td = td; 289 auio.uio_resid = buflen; 290 auio.uio_offset = off; 291 292 if (cookies) { 293 free(cookies, M_TEMP); 294 cookies = NULL; 295 } 296 297 #ifdef MAC 298 error = mac_check_vnode_readdir(td->td_ucred, vp); 299 if (error) 300 goto out; 301 #endif 302 303 error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag, 304 &ncookies, &cookies); 305 if (error) { 306 goto out; 307 } 308 309 inp = buf; 310 outp = (caddr_t) uap->dp; 311 resid = nbytes; 312 if ((len = buflen - auio.uio_resid) <= 0) { 313 goto eof; 314 } 315 316 cookiep = cookies; 317 318 if (cookies) { 319 /* 320 * When using cookies, the vfs has the option of reading from 321 * a different offset than that supplied (UFS truncates the 322 * offset to a block boundary to make sure that it never reads 323 * partway through a directory entry, even if the directory 324 * has been compacted). 325 */ 326 while (len > 0 && ncookies > 0 && *cookiep <= off) { 327 bdp = (struct dirent *) inp; 328 len -= bdp->d_reclen; 329 inp += bdp->d_reclen; 330 cookiep++; 331 ncookies--; 332 } 333 } 334 335 while (len > 0) { 336 if (cookiep && ncookies == 0) 337 break; 338 bdp = (struct dirent *) inp; 339 reclen = bdp->d_reclen; 340 if (reclen & 3) { 341 DPRINTF(("svr4_readdir: reclen=%d\n", reclen)); 342 error = EFAULT; 343 goto out; 344 } 345 346 if (bdp->d_fileno == 0) { 347 inp += reclen; 348 if (cookiep) { 349 off = *cookiep++; 350 ncookies--; 351 } else 352 off += reclen; 353 len -= reclen; 354 continue; 355 } 356 svr4reclen = SVR4_RECLEN(&svr4_dirent, bdp->d_namlen); 357 if (reclen > len || resid < svr4reclen) { 358 outp++; 359 break; 360 } 361 svr4_dirent.d_ino = (long) bdp->d_fileno; 362 if (justone) { 363 /* 364 * old svr4-style readdir usage. 365 */ 366 svr4_dirent.d_off = (svr4_off_t) svr4reclen; 367 svr4_dirent.d_reclen = (u_short) bdp->d_namlen; 368 } else { 369 svr4_dirent.d_off = (svr4_off_t)(off + reclen); 370 svr4_dirent.d_reclen = (u_short) svr4reclen; 371 } 372 strcpy(svr4_dirent.d_name, bdp->d_name); 373 if ((error = copyout((caddr_t)&svr4_dirent, outp, svr4reclen))) 374 goto out; 375 inp += reclen; 376 if (cookiep) { 377 off = *cookiep++; 378 ncookies--; 379 } else 380 off += reclen; 381 outp += svr4reclen; 382 resid -= svr4reclen; 383 len -= reclen; 384 if (justone) 385 break; 386 } 387 388 if (outp == (caddr_t) uap->dp) 389 goto again; 390 fp->f_offset = off; 391 392 if (justone) 393 nbytes = resid + svr4reclen; 394 395 eof: 396 td->td_retval[0] = nbytes - resid; 397 out: 398 VOP_UNLOCK(vp, 0, td); 399 fdrop(fp, td); 400 if (cookies) 401 free(cookies, M_TEMP); 402 free(buf, M_TEMP); 403 return error; 404 } 405 406 407 int 408 svr4_sys_getdents(td, uap) 409 struct thread *td; 410 struct svr4_sys_getdents_args *uap; 411 { 412 struct dirent *bdp; 413 struct vnode *vp; 414 caddr_t inp, buf; /* BSD-format */ 415 int len, reclen; /* BSD-format */ 416 caddr_t outp; /* SVR4-format */ 417 int resid, svr4_reclen; /* SVR4-format */ 418 struct file *fp; 419 struct uio auio; 420 struct iovec aiov; 421 struct svr4_dirent idb; 422 off_t off; /* true file offset */ 423 int buflen, error, eofflag; 424 u_long *cookiebuf = NULL, *cookie; 425 int ncookies = 0, *retval = td->td_retval; 426 427 if (uap->nbytes < 0) 428 return (EINVAL); 429 430 if ((error = getvnode(td->td_proc->p_fd, uap->fd, &fp)) != 0) 431 return (error); 432 433 if ((fp->f_flag & FREAD) == 0) { 434 fdrop(fp, td); 435 return (EBADF); 436 } 437 438 vp = fp->f_vnode; 439 if (vp->v_type != VDIR) { 440 fdrop(fp, td); 441 return (EINVAL); 442 } 443 444 buflen = min(MAXBSIZE, uap->nbytes); 445 buf = malloc(buflen, M_TEMP, M_WAITOK); 446 vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td); 447 off = fp->f_offset; 448 again: 449 aiov.iov_base = buf; 450 aiov.iov_len = buflen; 451 auio.uio_iov = &aiov; 452 auio.uio_iovcnt = 1; 453 auio.uio_rw = UIO_READ; 454 auio.uio_segflg = UIO_SYSSPACE; 455 auio.uio_td = td; 456 auio.uio_resid = buflen; 457 auio.uio_offset = off; 458 459 #ifdef MAC 460 error = mac_check_vnode_readdir(td->td_ucred, vp); 461 if (error) 462 goto out; 463 #endif 464 465 /* 466 * First we read into the malloc'ed buffer, then 467 * we massage it into user space, one record at a time. 468 */ 469 error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag, &ncookies, 470 &cookiebuf); 471 if (error) { 472 goto out; 473 } 474 475 inp = buf; 476 outp = uap->buf; 477 resid = uap->nbytes; 478 if ((len = buflen - auio.uio_resid) == 0) 479 goto eof; 480 481 for (cookie = cookiebuf; len > 0; len -= reclen) { 482 bdp = (struct dirent *)inp; 483 reclen = bdp->d_reclen; 484 if (reclen & 3) 485 panic("svr4_sys_getdents64: bad reclen"); 486 off = *cookie++; /* each entry points to the next */ 487 if ((off >> 32) != 0) { 488 uprintf("svr4_sys_getdents64: dir offset too large for emulated program"); 489 error = EINVAL; 490 goto out; 491 } 492 if (bdp->d_fileno == 0) { 493 inp += reclen; /* it is a hole; squish it out */ 494 continue; 495 } 496 svr4_reclen = SVR4_RECLEN(&idb, bdp->d_namlen); 497 if (reclen > len || resid < svr4_reclen) { 498 /* entry too big for buffer, so just stop */ 499 outp++; 500 break; 501 } 502 /* 503 * Massage in place to make a SVR4-shaped dirent (otherwise 504 * we have to worry about touching user memory outside of 505 * the copyout() call). 506 */ 507 idb.d_ino = (svr4_ino_t)bdp->d_fileno; 508 idb.d_off = (svr4_off_t)off; 509 idb.d_reclen = (u_short)svr4_reclen; 510 strcpy(idb.d_name, bdp->d_name); 511 if ((error = copyout((caddr_t)&idb, outp, svr4_reclen))) 512 goto out; 513 /* advance past this real entry */ 514 inp += reclen; 515 /* advance output past SVR4-shaped entry */ 516 outp += svr4_reclen; 517 resid -= svr4_reclen; 518 } 519 520 /* if we squished out the whole block, try again */ 521 if (outp == uap->buf) 522 goto again; 523 fp->f_offset = off; /* update the vnode offset */ 524 525 eof: 526 *retval = uap->nbytes - resid; 527 out: 528 VOP_UNLOCK(vp, 0, td); 529 fdrop(fp, td); 530 if (cookiebuf) 531 free(cookiebuf, M_TEMP); 532 free(buf, M_TEMP); 533 return error; 534 } 535 536 537 int 538 svr4_sys_mmap(td, uap) 539 struct thread *td; 540 struct svr4_sys_mmap_args *uap; 541 { 542 struct mmap_args mm; 543 int *retval; 544 545 retval = td->td_retval; 546 #define _MAP_NEW 0x80000000 547 /* 548 * Verify the arguments. 549 */ 550 if (uap->prot & ~(PROT_READ | PROT_WRITE | PROT_EXEC)) 551 return EINVAL; /* XXX still needed? */ 552 553 if (uap->len == 0) 554 return EINVAL; 555 556 mm.prot = uap->prot; 557 mm.len = uap->len; 558 mm.flags = uap->flags & ~_MAP_NEW; 559 mm.fd = uap->fd; 560 mm.addr = uap->addr; 561 mm.pos = uap->pos; 562 563 return mmap(td, &mm); 564 } 565 566 int 567 svr4_sys_mmap64(td, uap) 568 struct thread *td; 569 struct svr4_sys_mmap64_args *uap; 570 { 571 struct mmap_args mm; 572 void *rp; 573 574 #define _MAP_NEW 0x80000000 575 /* 576 * Verify the arguments. 577 */ 578 if (uap->prot & ~(PROT_READ | PROT_WRITE | PROT_EXEC)) 579 return EINVAL; /* XXX still needed? */ 580 581 if (uap->len == 0) 582 return EINVAL; 583 584 mm.prot = uap->prot; 585 mm.len = uap->len; 586 mm.flags = uap->flags & ~_MAP_NEW; 587 mm.fd = uap->fd; 588 mm.addr = uap->addr; 589 mm.pos = uap->pos; 590 591 rp = (void *) round_page((vm_offset_t)(td->td_proc->p_vmspace->vm_daddr + maxdsiz)); 592 if ((mm.flags & MAP_FIXED) == 0 && 593 mm.addr != 0 && (void *)mm.addr < rp) 594 mm.addr = rp; 595 596 return mmap(td, &mm); 597 } 598 599 600 int 601 svr4_sys_fchroot(td, uap) 602 struct thread *td; 603 struct svr4_sys_fchroot_args *uap; 604 { 605 struct filedesc *fdp = td->td_proc->p_fd; 606 struct vnode *vp, *vpold; 607 struct file *fp; 608 int error; 609 610 if ((error = suser(td)) != 0) 611 return error; 612 if ((error = getvnode(fdp, uap->fd, &fp)) != 0) 613 return error; 614 vp = fp->f_vnode; 615 vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td); 616 if (vp->v_type != VDIR) 617 error = ENOTDIR; 618 else 619 error = VOP_ACCESS(vp, VEXEC, td->td_ucred, td); 620 VOP_UNLOCK(vp, 0, td); 621 if (error) { 622 fdrop(fp, td); 623 return error; 624 } 625 VREF(vp); 626 FILEDESC_LOCK_FAST(fdp); 627 vpold = fdp->fd_rdir; 628 fdp->fd_rdir = vp; 629 FILEDESC_UNLOCK_FAST(fdp); 630 if (vpold != NULL) 631 vrele(vpold); 632 fdrop(fp, td); 633 return 0; 634 } 635 636 637 static int 638 svr4_mknod(td, retval, path, mode, dev) 639 struct thread *td; 640 register_t *retval; 641 char *path; 642 svr4_mode_t mode; 643 svr4_dev_t dev; 644 { 645 char *newpath; 646 int error; 647 648 CHECKALTEXIST(td, path, &newpath); 649 650 if (S_ISFIFO(mode)) 651 error = kern_mkfifo(td, newpath, UIO_SYSSPACE, mode); 652 else 653 error = kern_mknod(td, newpath, UIO_SYSSPACE, mode, dev); 654 free(newpath, M_TEMP); 655 return (error); 656 } 657 658 659 int 660 svr4_sys_mknod(td, uap) 661 register struct thread *td; 662 struct svr4_sys_mknod_args *uap; 663 { 664 int *retval = td->td_retval; 665 return svr4_mknod(td, retval, 666 uap->path, uap->mode, 667 (svr4_dev_t)svr4_to_bsd_odev_t(uap->dev)); 668 } 669 670 671 int 672 svr4_sys_xmknod(td, uap) 673 struct thread *td; 674 struct svr4_sys_xmknod_args *uap; 675 { 676 int *retval = td->td_retval; 677 return svr4_mknod(td, retval, 678 uap->path, uap->mode, 679 (svr4_dev_t)svr4_to_bsd_dev_t(uap->dev)); 680 } 681 682 683 int 684 svr4_sys_vhangup(td, uap) 685 struct thread *td; 686 struct svr4_sys_vhangup_args *uap; 687 { 688 return 0; 689 } 690 691 692 int 693 svr4_sys_sysconfig(td, uap) 694 struct thread *td; 695 struct svr4_sys_sysconfig_args *uap; 696 { 697 int *retval; 698 699 retval = &(td->td_retval[0]); 700 701 switch (uap->name) { 702 case SVR4_CONFIG_UNUSED: 703 *retval = 0; 704 break; 705 case SVR4_CONFIG_NGROUPS: 706 *retval = NGROUPS_MAX; 707 break; 708 case SVR4_CONFIG_CHILD_MAX: 709 *retval = maxproc; 710 break; 711 case SVR4_CONFIG_OPEN_FILES: 712 *retval = maxfiles; 713 break; 714 case SVR4_CONFIG_POSIX_VER: 715 *retval = 198808; 716 break; 717 case SVR4_CONFIG_PAGESIZE: 718 *retval = PAGE_SIZE; 719 break; 720 case SVR4_CONFIG_CLK_TCK: 721 *retval = 60; /* should this be `hz', ie. 100? */ 722 break; 723 case SVR4_CONFIG_XOPEN_VER: 724 *retval = 2; /* XXX: What should that be? */ 725 break; 726 case SVR4_CONFIG_PROF_TCK: 727 *retval = 60; /* XXX: What should that be? */ 728 break; 729 case SVR4_CONFIG_NPROC_CONF: 730 *retval = 1; /* Only one processor for now */ 731 break; 732 case SVR4_CONFIG_NPROC_ONLN: 733 *retval = 1; /* And it better be online */ 734 break; 735 case SVR4_CONFIG_AIO_LISTIO_MAX: 736 case SVR4_CONFIG_AIO_MAX: 737 case SVR4_CONFIG_AIO_PRIO_DELTA_MAX: 738 *retval = 0; /* No aio support */ 739 break; 740 case SVR4_CONFIG_DELAYTIMER_MAX: 741 *retval = 0; /* No delaytimer support */ 742 break; 743 case SVR4_CONFIG_MQ_OPEN_MAX: 744 *retval = msginfo.msgmni; 745 break; 746 case SVR4_CONFIG_MQ_PRIO_MAX: 747 *retval = 0; /* XXX: Don't know */ 748 break; 749 case SVR4_CONFIG_RTSIG_MAX: 750 *retval = 0; 751 break; 752 case SVR4_CONFIG_SEM_NSEMS_MAX: 753 *retval = seminfo.semmni; 754 break; 755 case SVR4_CONFIG_SEM_VALUE_MAX: 756 *retval = seminfo.semvmx; 757 break; 758 case SVR4_CONFIG_SIGQUEUE_MAX: 759 *retval = 0; /* XXX: Don't know */ 760 break; 761 case SVR4_CONFIG_SIGRT_MIN: 762 case SVR4_CONFIG_SIGRT_MAX: 763 *retval = 0; /* No real time signals */ 764 break; 765 case SVR4_CONFIG_TIMER_MAX: 766 *retval = 3; /* XXX: real, virtual, profiling */ 767 break; 768 #if defined(NOTYET) 769 case SVR4_CONFIG_PHYS_PAGES: 770 #if defined(UVM) 771 *retval = uvmexp.free; /* XXX: free instead of total */ 772 #else 773 *retval = cnt.v_free_count; /* XXX: free instead of total */ 774 #endif 775 break; 776 case SVR4_CONFIG_AVPHYS_PAGES: 777 #if defined(UVM) 778 *retval = uvmexp.active; /* XXX: active instead of avg */ 779 #else 780 *retval = cnt.v_active_count; /* XXX: active instead of avg */ 781 #endif 782 break; 783 #endif /* NOTYET */ 784 785 default: 786 return EINVAL; 787 } 788 return 0; 789 } 790 791 /* ARGSUSED */ 792 int 793 svr4_sys_break(td, uap) 794 struct thread *td; 795 struct svr4_sys_break_args *uap; 796 { 797 struct proc *p = td->td_proc; 798 struct vmspace *vm = p->p_vmspace; 799 vm_offset_t new, old, base, ns; 800 int rv; 801 802 base = round_page((vm_offset_t) vm->vm_daddr); 803 ns = (vm_offset_t)uap->nsize; 804 new = round_page(ns); 805 if (new > base) { 806 PROC_LOCK(p); 807 if ((new - base) > (unsigned)lim_cur(p, RLIMIT_DATA)) { 808 PROC_UNLOCK(p); 809 return ENOMEM; 810 } 811 PROC_UNLOCK(p); 812 if (new >= VM_MAXUSER_ADDRESS) 813 return (ENOMEM); 814 } else if (new < base) { 815 /* 816 * This is simply an invalid value. If someone wants to 817 * do fancy address space manipulations, mmap and munmap 818 * can do most of what the user would want. 819 */ 820 return EINVAL; 821 } 822 823 old = base + ctob(vm->vm_dsize); 824 825 if (new > old) { 826 vm_size_t diff; 827 diff = new - old; 828 PROC_LOCK(p); 829 if (vm->vm_map.size + diff > lim_cur(p, RLIMIT_VMEM)) { 830 PROC_UNLOCK(p); 831 return(ENOMEM); 832 } 833 PROC_UNLOCK(p); 834 rv = vm_map_find(&vm->vm_map, NULL, 0, &old, diff, FALSE, 835 VM_PROT_ALL, VM_PROT_ALL, 0); 836 if (rv != KERN_SUCCESS) { 837 return (ENOMEM); 838 } 839 vm->vm_dsize += btoc(diff); 840 } else if (new < old) { 841 rv = vm_map_remove(&vm->vm_map, new, old); 842 if (rv != KERN_SUCCESS) { 843 return (ENOMEM); 844 } 845 vm->vm_dsize -= btoc(old - new); 846 } 847 848 return (0); 849 } 850 851 static __inline clock_t 852 timeval_to_clock_t(tv) 853 struct timeval *tv; 854 { 855 return tv->tv_sec * hz + tv->tv_usec / (1000000 / hz); 856 } 857 858 859 int 860 svr4_sys_times(td, uap) 861 struct thread *td; 862 struct svr4_sys_times_args *uap; 863 { 864 struct timeval tv, utime, stime, cutime, cstime; 865 struct tms tms; 866 struct proc *p; 867 int error; 868 869 p = td->td_proc; 870 PROC_LOCK(p); 871 calcru(p, &utime, &stime); 872 calccru(p, &cutime, &cstime); 873 PROC_UNLOCK(p); 874 875 tms.tms_utime = timeval_to_clock_t(&utime); 876 tms.tms_stime = timeval_to_clock_t(&stime); 877 878 tms.tms_cutime = timeval_to_clock_t(&cutime); 879 tms.tms_cstime = timeval_to_clock_t(&cstime); 880 881 error = copyout(&tms, uap->tp, sizeof(tms)); 882 if (error) 883 return (error); 884 885 microtime(&tv); 886 td->td_retval[0] = (int)timeval_to_clock_t(&tv); 887 return (0); 888 } 889 890 891 int 892 svr4_sys_ulimit(td, uap) 893 struct thread *td; 894 struct svr4_sys_ulimit_args *uap; 895 { 896 int *retval = td->td_retval; 897 int error; 898 899 switch (uap->cmd) { 900 case SVR4_GFILLIM: 901 PROC_LOCK(td->td_proc); 902 *retval = lim_cur(td->td_proc, RLIMIT_FSIZE) / 512; 903 PROC_UNLOCK(td->td_proc); 904 if (*retval == -1) 905 *retval = 0x7fffffff; 906 return 0; 907 908 case SVR4_SFILLIM: 909 { 910 struct rlimit krl; 911 912 krl.rlim_cur = uap->newlimit * 512; 913 PROC_LOCK(td->td_proc); 914 krl.rlim_max = lim_max(td->td_proc, RLIMIT_FSIZE); 915 PROC_UNLOCK(td->td_proc); 916 917 error = kern_setrlimit(td, RLIMIT_FSIZE, &krl); 918 if (error) 919 return error; 920 921 PROC_LOCK(td->td_proc); 922 *retval = lim_cur(td->td_proc, RLIMIT_FSIZE); 923 PROC_UNLOCK(td->td_proc); 924 if (*retval == -1) 925 *retval = 0x7fffffff; 926 return 0; 927 } 928 929 case SVR4_GMEMLIM: 930 { 931 struct vmspace *vm = td->td_proc->p_vmspace; 932 register_t r; 933 934 PROC_LOCK(td->td_proc); 935 r = lim_cur(td->td_proc, RLIMIT_DATA); 936 PROC_UNLOCK(td->td_proc); 937 938 if (r == -1) 939 r = 0x7fffffff; 940 mtx_lock(&Giant); /* XXX */ 941 r += (long) vm->vm_daddr; 942 mtx_unlock(&Giant); 943 if (r < 0) 944 r = 0x7fffffff; 945 *retval = r; 946 return 0; 947 } 948 949 case SVR4_GDESLIM: 950 PROC_LOCK(td->td_proc); 951 *retval = lim_cur(td->td_proc, RLIMIT_NOFILE); 952 PROC_UNLOCK(td->td_proc); 953 if (*retval == -1) 954 *retval = 0x7fffffff; 955 return 0; 956 957 default: 958 return EINVAL; 959 } 960 } 961 962 static struct proc * 963 svr4_pfind(pid) 964 pid_t pid; 965 { 966 struct proc *p; 967 968 /* look in the live processes */ 969 if ((p = pfind(pid)) == NULL) 970 /* look in the zombies */ 971 p = zpfind(pid); 972 973 return p; 974 } 975 976 977 int 978 svr4_sys_pgrpsys(td, uap) 979 struct thread *td; 980 struct svr4_sys_pgrpsys_args *uap; 981 { 982 int *retval = td->td_retval; 983 struct proc *p = td->td_proc; 984 985 switch (uap->cmd) { 986 case 1: /* setpgrp() */ 987 /* 988 * SVR4 setpgrp() (which takes no arguments) has the 989 * semantics that the session ID is also created anew, so 990 * in almost every sense, setpgrp() is identical to 991 * setsid() for SVR4. (Under BSD, the difference is that 992 * a setpgid(0,0) will not create a new session.) 993 */ 994 setsid(td, NULL); 995 /*FALLTHROUGH*/ 996 997 case 0: /* getpgrp() */ 998 PROC_LOCK(p); 999 *retval = p->p_pgrp->pg_id; 1000 PROC_UNLOCK(p); 1001 return 0; 1002 1003 case 2: /* getsid(pid) */ 1004 if (uap->pid == 0) 1005 PROC_LOCK(p); 1006 else if ((p = svr4_pfind(uap->pid)) == NULL) 1007 return ESRCH; 1008 /* 1009 * This has already been initialized to the pid of 1010 * the session leader. 1011 */ 1012 *retval = (register_t) p->p_session->s_sid; 1013 PROC_UNLOCK(p); 1014 return 0; 1015 1016 case 3: /* setsid() */ 1017 return setsid(td, NULL); 1018 1019 case 4: /* getpgid(pid) */ 1020 1021 if (uap->pid == 0) 1022 PROC_LOCK(p); 1023 else if ((p = svr4_pfind(uap->pid)) == NULL) 1024 return ESRCH; 1025 1026 *retval = (int) p->p_pgrp->pg_id; 1027 PROC_UNLOCK(p); 1028 return 0; 1029 1030 case 5: /* setpgid(pid, pgid); */ 1031 { 1032 struct setpgid_args sa; 1033 1034 sa.pid = uap->pid; 1035 sa.pgid = uap->pgid; 1036 return setpgid(td, &sa); 1037 } 1038 1039 default: 1040 return EINVAL; 1041 } 1042 } 1043 1044 struct svr4_hrtcntl_args { 1045 int cmd; 1046 int fun; 1047 int clk; 1048 svr4_hrt_interval_t * iv; 1049 svr4_hrt_time_t * ti; 1050 }; 1051 1052 1053 static int 1054 svr4_hrtcntl(td, uap, retval) 1055 struct thread *td; 1056 struct svr4_hrtcntl_args *uap; 1057 register_t *retval; 1058 { 1059 switch (uap->fun) { 1060 case SVR4_HRT_CNTL_RES: 1061 DPRINTF(("htrcntl(RES)\n")); 1062 *retval = SVR4_HRT_USEC; 1063 return 0; 1064 1065 case SVR4_HRT_CNTL_TOFD: 1066 DPRINTF(("htrcntl(TOFD)\n")); 1067 { 1068 struct timeval tv; 1069 svr4_hrt_time_t t; 1070 if (uap->clk != SVR4_HRT_CLK_STD) { 1071 DPRINTF(("clk == %d\n", uap->clk)); 1072 return EINVAL; 1073 } 1074 if (uap->ti == NULL) { 1075 DPRINTF(("ti NULL\n")); 1076 return EINVAL; 1077 } 1078 microtime(&tv); 1079 t.h_sec = tv.tv_sec; 1080 t.h_rem = tv.tv_usec; 1081 t.h_res = SVR4_HRT_USEC; 1082 return copyout(&t, uap->ti, sizeof(t)); 1083 } 1084 1085 case SVR4_HRT_CNTL_START: 1086 DPRINTF(("htrcntl(START)\n")); 1087 return ENOSYS; 1088 1089 case SVR4_HRT_CNTL_GET: 1090 DPRINTF(("htrcntl(GET)\n")); 1091 return ENOSYS; 1092 default: 1093 DPRINTF(("Bad htrcntl command %d\n", uap->fun)); 1094 return ENOSYS; 1095 } 1096 } 1097 1098 1099 int 1100 svr4_sys_hrtsys(td, uap) 1101 struct thread *td; 1102 struct svr4_sys_hrtsys_args *uap; 1103 { 1104 int *retval = td->td_retval; 1105 1106 switch (uap->cmd) { 1107 case SVR4_HRT_CNTL: 1108 return svr4_hrtcntl(td, (struct svr4_hrtcntl_args *) uap, 1109 retval); 1110 1111 case SVR4_HRT_ALRM: 1112 DPRINTF(("hrtalarm\n")); 1113 return ENOSYS; 1114 1115 case SVR4_HRT_SLP: 1116 DPRINTF(("hrtsleep\n")); 1117 return ENOSYS; 1118 1119 case SVR4_HRT_CAN: 1120 DPRINTF(("hrtcancel\n")); 1121 return ENOSYS; 1122 1123 default: 1124 DPRINTF(("Bad hrtsys command %d\n", uap->cmd)); 1125 return EINVAL; 1126 } 1127 } 1128 1129 1130 static int 1131 svr4_setinfo(p, st, s) 1132 struct proc *p; 1133 int st; 1134 svr4_siginfo_t *s; 1135 { 1136 struct timeval utime, stime; 1137 svr4_siginfo_t i; 1138 int sig; 1139 1140 memset(&i, 0, sizeof(i)); 1141 1142 i.si_signo = SVR4_SIGCHLD; 1143 i.si_errno = 0; /* XXX? */ 1144 1145 if (p) { 1146 i.si_pid = p->p_pid; 1147 PROC_LOCK(p); 1148 calcru(p, &utime, &stime); 1149 PROC_UNLOCK(p); 1150 i.si_stime = stime.tv_sec; 1151 i.si_utime = utime.tv_sec; 1152 } 1153 1154 if (WIFEXITED(st)) { 1155 i.si_status = WEXITSTATUS(st); 1156 i.si_code = SVR4_CLD_EXITED; 1157 } else if (WIFSTOPPED(st)) { 1158 sig = WSTOPSIG(st); 1159 if (sig >= 0 && sig < NSIG) 1160 i.si_status = SVR4_BSD2SVR4_SIG(sig); 1161 1162 if (i.si_status == SVR4_SIGCONT) 1163 i.si_code = SVR4_CLD_CONTINUED; 1164 else 1165 i.si_code = SVR4_CLD_STOPPED; 1166 } else { 1167 sig = WTERMSIG(st); 1168 if (sig >= 0 && sig < NSIG) 1169 i.si_status = SVR4_BSD2SVR4_SIG(sig); 1170 1171 if (WCOREDUMP(st)) 1172 i.si_code = SVR4_CLD_DUMPED; 1173 else 1174 i.si_code = SVR4_CLD_KILLED; 1175 } 1176 1177 DPRINTF(("siginfo [pid %ld signo %d code %d errno %d status %d]\n", 1178 i.si_pid, i.si_signo, i.si_code, i.si_errno, i.si_status)); 1179 1180 return copyout(&i, s, sizeof(i)); 1181 } 1182 1183 1184 int 1185 svr4_sys_waitsys(td, uap) 1186 struct thread *td; 1187 struct svr4_sys_waitsys_args *uap; 1188 { 1189 int nfound; 1190 int error, *retval = td->td_retval; 1191 struct proc *p, *q, *t; 1192 1193 p = td->td_proc; 1194 switch (uap->grp) { 1195 case SVR4_P_PID: 1196 break; 1197 1198 case SVR4_P_PGID: 1199 PROC_LOCK(p); 1200 uap->id = -p->p_pgid; 1201 PROC_UNLOCK(p); 1202 break; 1203 1204 case SVR4_P_ALL: 1205 uap->id = WAIT_ANY; 1206 break; 1207 1208 default: 1209 return EINVAL; 1210 } 1211 1212 DPRINTF(("waitsys(%d, %d, %p, %x)\n", 1213 uap->grp, uap->id, 1214 uap->info, uap->options)); 1215 1216 loop: 1217 nfound = 0; 1218 sx_slock(&proctree_lock); 1219 LIST_FOREACH(q, &p->p_children, p_sibling) { 1220 PROC_LOCK(q); 1221 if (uap->id != WAIT_ANY && 1222 q->p_pid != uap->id && 1223 q->p_pgid != -uap->id) { 1224 PROC_UNLOCK(q); 1225 DPRINTF(("pid %d pgid %d != %d\n", q->p_pid, 1226 q->p_pgid, uap->id)); 1227 continue; 1228 } 1229 nfound++; 1230 if ((q->p_state == PRS_ZOMBIE) && 1231 ((uap->options & (SVR4_WEXITED|SVR4_WTRAPPED)))) { 1232 PROC_UNLOCK(q); 1233 sx_sunlock(&proctree_lock); 1234 *retval = 0; 1235 DPRINTF(("found %d\n", q->p_pid)); 1236 error = svr4_setinfo(q, q->p_xstat, uap->info); 1237 if (error != 0) 1238 return error; 1239 1240 1241 if ((uap->options & SVR4_WNOWAIT)) { 1242 DPRINTF(("Don't wait\n")); 1243 return 0; 1244 } 1245 1246 /* 1247 * If we got the child via ptrace(2) or procfs, and 1248 * the parent is different (meaning the process was 1249 * attached, rather than run as a child), then we need 1250 * to give it back to the old parent, and send the 1251 * parent a SIGCHLD. The rest of the cleanup will be 1252 * done when the old parent waits on the child. 1253 */ 1254 sx_xlock(&proctree_lock); 1255 PROC_LOCK(q); 1256 if (q->p_flag & P_TRACED) { 1257 if (q->p_oppid != q->p_pptr->p_pid) { 1258 PROC_UNLOCK(q); 1259 t = pfind(q->p_oppid); 1260 if (t == NULL) { 1261 t = initproc; 1262 PROC_LOCK(initproc); 1263 } 1264 PROC_LOCK(q); 1265 proc_reparent(q, t); 1266 q->p_oppid = 0; 1267 q->p_flag &= ~(P_TRACED | P_WAITED); 1268 PROC_UNLOCK(q); 1269 psignal(t, SIGCHLD); 1270 wakeup(t); 1271 PROC_UNLOCK(t); 1272 sx_xunlock(&proctree_lock); 1273 return 0; 1274 } 1275 } 1276 PROC_UNLOCK(q); 1277 sx_xunlock(&proctree_lock); 1278 q->p_xstat = 0; 1279 ruadd(&p->p_stats->p_cru, &p->p_crux, q->p_ru, 1280 &q->p_rux); 1281 FREE(q->p_ru, M_ZOMBIE); 1282 q->p_ru = NULL; 1283 1284 /* 1285 * Decrement the count of procs running with this uid. 1286 */ 1287 (void)chgproccnt(q->p_ucred->cr_ruidinfo, -1, 0); 1288 1289 /* 1290 * Release reference to text vnode. 1291 */ 1292 if (q->p_textvp) 1293 vrele(q->p_textvp); 1294 1295 /* 1296 * Free up credentials. 1297 */ 1298 crfree(q->p_ucred); 1299 q->p_ucred = NULL; 1300 1301 /* 1302 * Remove unused arguments 1303 */ 1304 pargs_drop(q->p_args); 1305 PROC_UNLOCK(q); 1306 1307 /* 1308 * Finally finished with old proc entry. 1309 * Unlink it from its process group and free it. 1310 */ 1311 sx_xlock(&proctree_lock); 1312 leavepgrp(q); 1313 1314 sx_xlock(&allproc_lock); 1315 LIST_REMOVE(q, p_list); /* off zombproc */ 1316 sx_xunlock(&allproc_lock); 1317 1318 LIST_REMOVE(q, p_sibling); 1319 sx_xunlock(&proctree_lock); 1320 1321 PROC_LOCK(q); 1322 sigacts_free(q->p_sigacts); 1323 q->p_sigacts = NULL; 1324 PROC_UNLOCK(q); 1325 1326 /* 1327 * Give machine-dependent layer a chance 1328 * to free anything that cpu_exit couldn't 1329 * release while still running in process context. 1330 */ 1331 vm_waitproc(q); 1332 #if defined(__NetBSD__) 1333 pool_put(&proc_pool, q); 1334 #endif 1335 #ifdef __FreeBSD__ 1336 mtx_destroy(&q->p_mtx); 1337 #ifdef MAC 1338 mac_destroy_proc(q); 1339 #endif 1340 uma_zfree(proc_zone, q); 1341 #endif 1342 nprocs--; 1343 return 0; 1344 } 1345 /* XXXKSE this needs clarification */ 1346 if (P_SHOULDSTOP(q) && ((q->p_flag & P_WAITED) == 0) && 1347 (q->p_flag & P_TRACED || 1348 (uap->options & (SVR4_WSTOPPED|SVR4_WCONTINUED)))) { 1349 DPRINTF(("jobcontrol %d\n", q->p_pid)); 1350 if (((uap->options & SVR4_WNOWAIT)) == 0) 1351 q->p_flag |= P_WAITED; 1352 PROC_UNLOCK(q); 1353 *retval = 0; 1354 return svr4_setinfo(q, W_STOPCODE(q->p_xstat), 1355 uap->info); 1356 } 1357 PROC_UNLOCK(q); 1358 } 1359 1360 if (nfound == 0) 1361 return ECHILD; 1362 1363 if (uap->options & SVR4_WNOHANG) { 1364 *retval = 0; 1365 if ((error = svr4_setinfo(NULL, 0, uap->info)) != 0) 1366 return error; 1367 return 0; 1368 } 1369 1370 if ((error = tsleep(p, PWAIT | PCATCH, "svr4_wait", 0)) != 0) 1371 return error; 1372 goto loop; 1373 } 1374 1375 1376 static void 1377 bsd_statfs_to_svr4_statvfs(bfs, sfs) 1378 const struct statfs *bfs; 1379 struct svr4_statvfs *sfs; 1380 { 1381 sfs->f_bsize = bfs->f_iosize; /* XXX */ 1382 sfs->f_frsize = bfs->f_bsize; 1383 sfs->f_blocks = bfs->f_blocks; 1384 sfs->f_bfree = bfs->f_bfree; 1385 sfs->f_bavail = bfs->f_bavail; 1386 sfs->f_files = bfs->f_files; 1387 sfs->f_ffree = bfs->f_ffree; 1388 sfs->f_favail = bfs->f_ffree; 1389 sfs->f_fsid = bfs->f_fsid.val[0]; 1390 memcpy(sfs->f_basetype, bfs->f_fstypename, sizeof(sfs->f_basetype)); 1391 sfs->f_flag = 0; 1392 if (bfs->f_flags & MNT_RDONLY) 1393 sfs->f_flag |= SVR4_ST_RDONLY; 1394 if (bfs->f_flags & MNT_NOSUID) 1395 sfs->f_flag |= SVR4_ST_NOSUID; 1396 sfs->f_namemax = MAXNAMLEN; 1397 memcpy(sfs->f_fstr, bfs->f_fstypename, sizeof(sfs->f_fstr)); /* XXX */ 1398 memset(sfs->f_filler, 0, sizeof(sfs->f_filler)); 1399 } 1400 1401 1402 static void 1403 bsd_statfs_to_svr4_statvfs64(bfs, sfs) 1404 const struct statfs *bfs; 1405 struct svr4_statvfs64 *sfs; 1406 { 1407 sfs->f_bsize = bfs->f_iosize; /* XXX */ 1408 sfs->f_frsize = bfs->f_bsize; 1409 sfs->f_blocks = bfs->f_blocks; 1410 sfs->f_bfree = bfs->f_bfree; 1411 sfs->f_bavail = bfs->f_bavail; 1412 sfs->f_files = bfs->f_files; 1413 sfs->f_ffree = bfs->f_ffree; 1414 sfs->f_favail = bfs->f_ffree; 1415 sfs->f_fsid = bfs->f_fsid.val[0]; 1416 memcpy(sfs->f_basetype, bfs->f_fstypename, sizeof(sfs->f_basetype)); 1417 sfs->f_flag = 0; 1418 if (bfs->f_flags & MNT_RDONLY) 1419 sfs->f_flag |= SVR4_ST_RDONLY; 1420 if (bfs->f_flags & MNT_NOSUID) 1421 sfs->f_flag |= SVR4_ST_NOSUID; 1422 sfs->f_namemax = MAXNAMLEN; 1423 memcpy(sfs->f_fstr, bfs->f_fstypename, sizeof(sfs->f_fstr)); /* XXX */ 1424 memset(sfs->f_filler, 0, sizeof(sfs->f_filler)); 1425 } 1426 1427 1428 int 1429 svr4_sys_statvfs(td, uap) 1430 struct thread *td; 1431 struct svr4_sys_statvfs_args *uap; 1432 { 1433 struct svr4_statvfs sfs; 1434 struct statfs bfs; 1435 char *path; 1436 int error; 1437 1438 CHECKALTEXIST(td, uap->path, &path); 1439 1440 error = kern_statfs(td, path, UIO_SYSSPACE, &bfs); 1441 free(path, M_TEMP); 1442 if (error) 1443 return (error); 1444 bsd_statfs_to_svr4_statvfs(&bfs, &sfs); 1445 return copyout(&sfs, uap->fs, sizeof(sfs)); 1446 } 1447 1448 1449 int 1450 svr4_sys_fstatvfs(td, uap) 1451 struct thread *td; 1452 struct svr4_sys_fstatvfs_args *uap; 1453 { 1454 struct svr4_statvfs sfs; 1455 struct statfs bfs; 1456 int error; 1457 1458 error = kern_fstatfs(td, uap->fd, &bfs); 1459 if (error) 1460 return (error); 1461 bsd_statfs_to_svr4_statvfs(&bfs, &sfs); 1462 return copyout(&sfs, uap->fs, sizeof(sfs)); 1463 } 1464 1465 1466 int 1467 svr4_sys_statvfs64(td, uap) 1468 struct thread *td; 1469 struct svr4_sys_statvfs64_args *uap; 1470 { 1471 struct svr4_statvfs64 sfs; 1472 struct statfs bfs; 1473 char *path; 1474 int error; 1475 1476 CHECKALTEXIST(td, uap->path, &path); 1477 1478 error = kern_statfs(td, path, UIO_SYSSPACE, &bfs); 1479 free(path, M_TEMP); 1480 if (error) 1481 return (error); 1482 bsd_statfs_to_svr4_statvfs64(&bfs, &sfs); 1483 return copyout(&sfs, uap->fs, sizeof(sfs)); 1484 } 1485 1486 1487 int 1488 svr4_sys_fstatvfs64(td, uap) 1489 struct thread *td; 1490 struct svr4_sys_fstatvfs64_args *uap; 1491 { 1492 struct svr4_statvfs64 sfs; 1493 struct statfs bfs; 1494 int error; 1495 1496 error = kern_fstatfs(td, uap->fd, &bfs); 1497 if (error) 1498 return (error); 1499 bsd_statfs_to_svr4_statvfs64(&bfs, &sfs); 1500 return copyout(&sfs, uap->fs, sizeof(sfs)); 1501 } 1502 1503 int 1504 svr4_sys_alarm(td, uap) 1505 struct thread *td; 1506 struct svr4_sys_alarm_args *uap; 1507 { 1508 struct itimerval itv, oitv; 1509 int error; 1510 1511 timevalclear(&itv.it_interval); 1512 itv.it_value.tv_sec = uap->sec; 1513 itv.it_value.tv_usec = 0; 1514 error = kern_setitimer(td, ITIMER_REAL, &itv, &oitv); 1515 if (error) 1516 return (error); 1517 if (oitv.it_value.tv_usec != 0) 1518 oitv.it_value.tv_sec++; 1519 td->td_retval[0] = oitv.it_value.tv_sec; 1520 return (0); 1521 } 1522 1523 int 1524 svr4_sys_gettimeofday(td, uap) 1525 struct thread *td; 1526 struct svr4_sys_gettimeofday_args *uap; 1527 { 1528 if (uap->tp) { 1529 struct timeval atv; 1530 1531 microtime(&atv); 1532 return copyout(&atv, uap->tp, sizeof (atv)); 1533 } 1534 1535 return 0; 1536 } 1537 1538 int 1539 svr4_sys_facl(td, uap) 1540 struct thread *td; 1541 struct svr4_sys_facl_args *uap; 1542 { 1543 int *retval; 1544 1545 retval = td->td_retval; 1546 *retval = 0; 1547 1548 switch (uap->cmd) { 1549 case SVR4_SYS_SETACL: 1550 /* We don't support acls on any filesystem */ 1551 return ENOSYS; 1552 1553 case SVR4_SYS_GETACL: 1554 return copyout(retval, &uap->num, 1555 sizeof(uap->num)); 1556 1557 case SVR4_SYS_GETACLCNT: 1558 return 0; 1559 1560 default: 1561 return EINVAL; 1562 } 1563 } 1564 1565 1566 int 1567 svr4_sys_acl(td, uap) 1568 struct thread *td; 1569 struct svr4_sys_acl_args *uap; 1570 { 1571 /* XXX: for now the same */ 1572 return svr4_sys_facl(td, (struct svr4_sys_facl_args *)uap); 1573 } 1574 1575 int 1576 svr4_sys_auditsys(td, uap) 1577 struct thread *td; 1578 struct svr4_sys_auditsys_args *uap; 1579 { 1580 /* 1581 * XXX: Big brother is *not* watching. 1582 */ 1583 return 0; 1584 } 1585 1586 int 1587 svr4_sys_memcntl(td, uap) 1588 struct thread *td; 1589 struct svr4_sys_memcntl_args *uap; 1590 { 1591 switch (uap->cmd) { 1592 case SVR4_MC_SYNC: 1593 { 1594 struct msync_args msa; 1595 1596 msa.addr = uap->addr; 1597 msa.len = uap->len; 1598 msa.flags = (int)uap->arg; 1599 1600 return msync(td, &msa); 1601 } 1602 case SVR4_MC_ADVISE: 1603 { 1604 struct madvise_args maa; 1605 1606 maa.addr = uap->addr; 1607 maa.len = uap->len; 1608 maa.behav = (int)uap->arg; 1609 1610 return madvise(td, &maa); 1611 } 1612 case SVR4_MC_LOCK: 1613 case SVR4_MC_UNLOCK: 1614 case SVR4_MC_LOCKAS: 1615 case SVR4_MC_UNLOCKAS: 1616 return EOPNOTSUPP; 1617 default: 1618 return ENOSYS; 1619 } 1620 } 1621 1622 1623 int 1624 svr4_sys_nice(td, uap) 1625 struct thread *td; 1626 struct svr4_sys_nice_args *uap; 1627 { 1628 struct setpriority_args ap; 1629 int error; 1630 1631 ap.which = PRIO_PROCESS; 1632 ap.who = 0; 1633 ap.prio = uap->prio; 1634 1635 if ((error = setpriority(td, &ap)) != 0) 1636 return error; 1637 1638 /* the cast is stupid, but the structures are the same */ 1639 if ((error = getpriority(td, (struct getpriority_args *)&ap)) != 0) 1640 return error; 1641 1642 return 0; 1643 } 1644 1645 int 1646 svr4_sys_resolvepath(td, uap) 1647 struct thread *td; 1648 struct svr4_sys_resolvepath_args *uap; 1649 { 1650 struct nameidata nd; 1651 int error, *retval = td->td_retval; 1652 unsigned int ncopy; 1653 1654 NDINIT(&nd, LOOKUP, NOFOLLOW | SAVENAME, UIO_USERSPACE, 1655 uap->path, td); 1656 1657 if ((error = namei(&nd)) != 0) 1658 return error; 1659 1660 ncopy = min(uap->bufsiz, strlen(nd.ni_cnd.cn_pnbuf) + 1); 1661 if ((error = copyout(nd.ni_cnd.cn_pnbuf, uap->buf, ncopy)) != 0) 1662 goto bad; 1663 1664 *retval = ncopy; 1665 bad: 1666 NDFREE(&nd, NDF_ONLY_PNBUF); 1667 vput(nd.ni_vp); 1668 return error; 1669 }
Cache object: ba64da05bedfd27c798f822d7ac31f24
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