Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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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/11.2/sys/compat/svr4/svr4_misc.c 331330 2018-03-21 23:45:48Z emaste $"); 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/capsicum.h> 41 #include <sys/dirent.h> 42 #include <sys/fcntl.h> 43 #include <sys/filedesc.h> 44 #include <sys/imgact.h> 45 #include <sys/kernel.h> 46 #include <sys/lock.h> 47 #include <sys/malloc.h> 48 #include <sys/file.h> /* Must come after sys/malloc.h */ 49 #include <sys/mman.h> 50 #include <sys/mount.h> 51 #include <sys/msg.h> 52 #include <sys/mutex.h> 53 #include <sys/namei.h> 54 #include <sys/priv.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 <security/mac/mac_framework.h> 86 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 (pid_t , struct rusage *, 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 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 struct vmspace *oldvmspace; 170 char *path; 171 int error; 172 173 CHECKALTEXIST(td, uap->path, &path); 174 175 error = pre_execve(td, &oldvmspace); 176 if (error != 0) { 177 free(path, M_TEMP); 178 return (error); 179 } 180 error = exec_copyin_args(&eargs, path, UIO_SYSSPACE, uap->argp, NULL); 181 free(path, M_TEMP); 182 if (error == 0) 183 error = kern_execve(td, &eargs, NULL); 184 post_execve(td, error, oldvmspace); 185 return (error); 186 } 187 188 int 189 svr4_sys_execve(td, uap) 190 struct thread *td; 191 struct svr4_sys_execve_args *uap; 192 { 193 struct image_args eargs; 194 struct vmspace *oldvmspace; 195 char *path; 196 int error; 197 198 CHECKALTEXIST(td, uap->path, &path); 199 200 error = pre_execve(td, &oldvmspace); 201 if (error != 0) { 202 free(path, M_TEMP); 203 return (error); 204 } 205 error = exec_copyin_args(&eargs, path, UIO_SYSSPACE, uap->argp, 206 uap->envp); 207 free(path, M_TEMP); 208 if (error == 0) 209 error = kern_execve(td, &eargs, NULL); 210 post_execve(td, error, oldvmspace); 211 return (error); 212 } 213 214 int 215 svr4_sys_time(td, v) 216 struct thread *td; 217 struct svr4_sys_time_args *v; 218 { 219 struct svr4_sys_time_args *uap = v; 220 int error = 0; 221 struct timeval tv; 222 223 microtime(&tv); 224 if (uap->t) 225 error = copyout(&tv.tv_sec, uap->t, 226 sizeof(*(uap->t))); 227 td->td_retval[0] = (int) tv.tv_sec; 228 229 return error; 230 } 231 232 233 /* 234 * Read SVR4-style directory entries. We suck them into kernel space so 235 * that they can be massaged before being copied out to user code. 236 * 237 * This code is ported from the Linux emulator: Changes to the VFS interface 238 * between FreeBSD and NetBSD have made it simpler to port it from there than 239 * to adapt the NetBSD version. 240 */ 241 int 242 svr4_sys_getdents64(td, uap) 243 struct thread *td; 244 struct svr4_sys_getdents64_args *uap; 245 { 246 struct dirent *bdp; 247 struct vnode *vp; 248 caddr_t inp, buf; /* BSD-format */ 249 int len, reclen; /* BSD-format */ 250 caddr_t outp; /* SVR4-format */ 251 int resid, svr4reclen=0; /* SVR4-format */ 252 cap_rights_t rights; 253 struct file *fp; 254 struct uio auio; 255 struct iovec aiov; 256 off_t off; 257 struct svr4_dirent64 svr4_dirent; 258 int buflen, error, eofflag, nbytes, justone; 259 u_long *cookies = NULL, *cookiep; 260 int ncookies; 261 262 memset(&svr4_dirent, 0, sizeof(svr4_dirent)); 263 DPRINTF(("svr4_sys_getdents64(%d, *, %d)\n", 264 uap->fd, uap->nbytes)); 265 error = getvnode(td, uap->fd, cap_rights_init(&rights, CAP_READ), &fp); 266 if (error != 0) 267 return (error); 268 269 if ((fp->f_flag & FREAD) == 0) { 270 fdrop(fp, td); 271 return (EBADF); 272 } 273 274 vp = fp->f_vnode; 275 if (vp->v_type != VDIR) { 276 fdrop(fp, td); 277 return (EINVAL); 278 } 279 280 nbytes = uap->nbytes; 281 if (nbytes == 1) { 282 nbytes = sizeof (struct svr4_dirent64); 283 justone = 1; 284 } 285 else 286 justone = 0; 287 288 off = fp->f_offset; 289 #define DIRBLKSIZ 512 /* XXX we used to use ufs's DIRBLKSIZ */ 290 buflen = max(DIRBLKSIZ, nbytes); 291 buflen = min(buflen, MAXBSIZE); 292 buf = malloc(buflen, M_TEMP, M_WAITOK); 293 vn_lock(vp, LK_SHARED | LK_RETRY); 294 again: 295 aiov.iov_base = buf; 296 aiov.iov_len = buflen; 297 auio.uio_iov = &aiov; 298 auio.uio_iovcnt = 1; 299 auio.uio_rw = UIO_READ; 300 auio.uio_segflg = UIO_SYSSPACE; 301 auio.uio_td = td; 302 auio.uio_resid = buflen; 303 auio.uio_offset = off; 304 305 if (cookies) { 306 free(cookies, M_TEMP); 307 cookies = NULL; 308 } 309 310 #ifdef MAC 311 error = mac_vnode_check_readdir(td->td_ucred, vp); 312 if (error) 313 goto out; 314 #endif 315 316 error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag, 317 &ncookies, &cookies); 318 if (error) { 319 goto out; 320 } 321 322 inp = buf; 323 outp = (caddr_t) uap->dp; 324 resid = nbytes; 325 if ((len = buflen - auio.uio_resid) <= 0) { 326 goto eof; 327 } 328 329 cookiep = cookies; 330 331 if (cookies) { 332 /* 333 * When using cookies, the vfs has the option of reading from 334 * a different offset than that supplied (UFS truncates the 335 * offset to a block boundary to make sure that it never reads 336 * partway through a directory entry, even if the directory 337 * has been compacted). 338 */ 339 while (len > 0 && ncookies > 0 && *cookiep <= off) { 340 bdp = (struct dirent *) inp; 341 len -= bdp->d_reclen; 342 inp += bdp->d_reclen; 343 cookiep++; 344 ncookies--; 345 } 346 } 347 348 while (len > 0) { 349 if (cookiep && ncookies == 0) 350 break; 351 bdp = (struct dirent *) inp; 352 reclen = bdp->d_reclen; 353 if (reclen & 3) { 354 DPRINTF(("svr4_readdir: reclen=%d\n", reclen)); 355 error = EFAULT; 356 goto out; 357 } 358 359 if (bdp->d_fileno == 0) { 360 inp += reclen; 361 if (cookiep) { 362 off = *cookiep++; 363 ncookies--; 364 } else 365 off += reclen; 366 len -= reclen; 367 continue; 368 } 369 svr4reclen = SVR4_RECLEN(&svr4_dirent, bdp->d_namlen); 370 if (reclen > len || resid < svr4reclen) { 371 outp++; 372 break; 373 } 374 svr4_dirent.d_ino = (long) bdp->d_fileno; 375 if (justone) { 376 /* 377 * old svr4-style readdir usage. 378 */ 379 svr4_dirent.d_off = (svr4_off_t) svr4reclen; 380 svr4_dirent.d_reclen = (u_short) bdp->d_namlen; 381 } else { 382 svr4_dirent.d_off = (svr4_off_t)(off + reclen); 383 svr4_dirent.d_reclen = (u_short) svr4reclen; 384 } 385 strlcpy(svr4_dirent.d_name, bdp->d_name, sizeof(svr4_dirent.d_name)); 386 if ((error = copyout((caddr_t)&svr4_dirent, outp, svr4reclen))) 387 goto out; 388 inp += reclen; 389 if (cookiep) { 390 off = *cookiep++; 391 ncookies--; 392 } else 393 off += reclen; 394 outp += svr4reclen; 395 resid -= svr4reclen; 396 len -= reclen; 397 if (justone) 398 break; 399 } 400 401 if (outp == (caddr_t) uap->dp) 402 goto again; 403 fp->f_offset = off; 404 405 if (justone) 406 nbytes = resid + svr4reclen; 407 408 eof: 409 td->td_retval[0] = nbytes - resid; 410 out: 411 VOP_UNLOCK(vp, 0); 412 fdrop(fp, td); 413 if (cookies) 414 free(cookies, M_TEMP); 415 free(buf, M_TEMP); 416 return error; 417 } 418 419 420 int 421 svr4_sys_getdents(td, uap) 422 struct thread *td; 423 struct svr4_sys_getdents_args *uap; 424 { 425 struct dirent *bdp; 426 struct vnode *vp; 427 caddr_t inp, buf; /* BSD-format */ 428 int len, reclen; /* BSD-format */ 429 caddr_t outp; /* SVR4-format */ 430 int resid, svr4_reclen; /* SVR4-format */ 431 cap_rights_t rights; 432 struct file *fp; 433 struct uio auio; 434 struct iovec aiov; 435 struct svr4_dirent idb; 436 off_t off; /* true file offset */ 437 int buflen, error, eofflag; 438 u_long *cookiebuf = NULL, *cookie; 439 int ncookies = 0, *retval = td->td_retval; 440 441 if (uap->nbytes < 0) 442 return (EINVAL); 443 444 error = getvnode(td, uap->fd, cap_rights_init(&rights, CAP_READ), &fp); 445 if (error != 0) 446 return (error); 447 448 if ((fp->f_flag & FREAD) == 0) { 449 fdrop(fp, td); 450 return (EBADF); 451 } 452 453 vp = fp->f_vnode; 454 if (vp->v_type != VDIR) { 455 fdrop(fp, td); 456 return (EINVAL); 457 } 458 459 buflen = min(MAXBSIZE, uap->nbytes); 460 buf = malloc(buflen, M_TEMP, M_WAITOK); 461 vn_lock(vp, LK_SHARED | LK_RETRY); 462 off = fp->f_offset; 463 again: 464 aiov.iov_base = buf; 465 aiov.iov_len = buflen; 466 auio.uio_iov = &aiov; 467 auio.uio_iovcnt = 1; 468 auio.uio_rw = UIO_READ; 469 auio.uio_segflg = UIO_SYSSPACE; 470 auio.uio_td = td; 471 auio.uio_resid = buflen; 472 auio.uio_offset = off; 473 474 #ifdef MAC 475 error = mac_vnode_check_readdir(td->td_ucred, vp); 476 if (error) 477 goto out; 478 #endif 479 480 /* 481 * First we read into the malloc'ed buffer, then 482 * we massage it into user space, one record at a time. 483 */ 484 error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag, &ncookies, 485 &cookiebuf); 486 if (error) { 487 goto out; 488 } 489 490 inp = buf; 491 outp = uap->buf; 492 resid = uap->nbytes; 493 if ((len = buflen - auio.uio_resid) == 0) 494 goto eof; 495 496 for (cookie = cookiebuf; len > 0; len -= reclen) { 497 bdp = (struct dirent *)inp; 498 reclen = bdp->d_reclen; 499 if (reclen & 3) 500 panic("svr4_sys_getdents64: bad reclen"); 501 if (cookie) 502 off = *cookie++; /* each entry points to the next */ 503 else 504 off += reclen; 505 if ((off >> 32) != 0) { 506 uprintf("svr4_sys_getdents64: dir offset too large for emulated program"); 507 error = EINVAL; 508 goto out; 509 } 510 if (bdp->d_fileno == 0) { 511 inp += reclen; /* it is a hole; squish it out */ 512 continue; 513 } 514 svr4_reclen = SVR4_RECLEN(&idb, bdp->d_namlen); 515 if (reclen > len || resid < svr4_reclen) { 516 /* entry too big for buffer, so just stop */ 517 outp++; 518 break; 519 } 520 /* 521 * Massage in place to make a SVR4-shaped dirent (otherwise 522 * we have to worry about touching user memory outside of 523 * the copyout() call). 524 */ 525 idb.d_ino = (svr4_ino_t)bdp->d_fileno; 526 idb.d_off = (svr4_off_t)off; 527 idb.d_reclen = (u_short)svr4_reclen; 528 strlcpy(idb.d_name, bdp->d_name, sizeof(idb.d_name)); 529 if ((error = copyout((caddr_t)&idb, outp, svr4_reclen))) 530 goto out; 531 /* advance past this real entry */ 532 inp += reclen; 533 /* advance output past SVR4-shaped entry */ 534 outp += svr4_reclen; 535 resid -= svr4_reclen; 536 } 537 538 /* if we squished out the whole block, try again */ 539 if (outp == uap->buf) 540 goto again; 541 fp->f_offset = off; /* update the vnode offset */ 542 543 eof: 544 *retval = uap->nbytes - resid; 545 out: 546 VOP_UNLOCK(vp, 0); 547 fdrop(fp, td); 548 if (cookiebuf) 549 free(cookiebuf, M_TEMP); 550 free(buf, M_TEMP); 551 return error; 552 } 553 554 555 int 556 svr4_sys_mmap(td, uap) 557 struct thread *td; 558 struct svr4_sys_mmap_args *uap; 559 { 560 struct mmap_args mm; 561 int *retval; 562 563 retval = td->td_retval; 564 #define _MAP_NEW 0x80000000 565 /* 566 * Verify the arguments. 567 */ 568 if (uap->prot & ~(PROT_READ | PROT_WRITE | PROT_EXEC)) 569 return EINVAL; /* XXX still needed? */ 570 571 if (uap->len == 0) 572 return EINVAL; 573 574 mm.prot = uap->prot; 575 mm.len = uap->len; 576 mm.flags = uap->flags & ~_MAP_NEW; 577 mm.fd = uap->fd; 578 mm.addr = uap->addr; 579 mm.pos = uap->pos; 580 581 return sys_mmap(td, &mm); 582 } 583 584 int 585 svr4_sys_mmap64(td, uap) 586 struct thread *td; 587 struct svr4_sys_mmap64_args *uap; 588 { 589 struct mmap_args mm; 590 void *rp; 591 592 #define _MAP_NEW 0x80000000 593 /* 594 * Verify the arguments. 595 */ 596 if (uap->prot & ~(PROT_READ | PROT_WRITE | PROT_EXEC)) 597 return EINVAL; /* XXX still needed? */ 598 599 if (uap->len == 0) 600 return EINVAL; 601 602 mm.prot = uap->prot; 603 mm.len = uap->len; 604 mm.flags = uap->flags & ~_MAP_NEW; 605 mm.fd = uap->fd; 606 mm.addr = uap->addr; 607 mm.pos = uap->pos; 608 609 rp = (void *) round_page((vm_offset_t)(td->td_proc->p_vmspace->vm_daddr + maxdsiz)); 610 if ((mm.flags & MAP_FIXED) == 0 && 611 mm.addr != 0 && (void *)mm.addr < rp) 612 mm.addr = rp; 613 614 return sys_mmap(td, &mm); 615 } 616 617 618 int 619 svr4_sys_fchroot(td, uap) 620 struct thread *td; 621 struct svr4_sys_fchroot_args *uap; 622 { 623 cap_rights_t rights; 624 struct vnode *vp; 625 struct file *fp; 626 int error; 627 628 if ((error = priv_check(td, PRIV_VFS_FCHROOT)) != 0) 629 return error; 630 /* XXX: we have the chroot priv... what cap might we need? all? */ 631 if ((error = getvnode(td, uap->fd, cap_rights_init(&rights), &fp)) != 0) 632 return error; 633 vp = fp->f_vnode; 634 VREF(vp); 635 fdrop(fp, td); 636 vn_lock(vp, LK_EXCLUSIVE | LK_RETRY); 637 error = change_dir(vp, td); 638 if (error) 639 goto fail; 640 #ifdef MAC 641 error = mac_vnode_check_chroot(td->td_ucred, vp); 642 if (error) 643 goto fail; 644 #endif 645 VOP_UNLOCK(vp, 0); 646 error = pwd_chroot(td, vp); 647 vrele(vp); 648 return (error); 649 fail: 650 vput(vp); 651 return (error); 652 } 653 654 655 static int 656 svr4_mknod(td, retval, path, mode, dev) 657 struct thread *td; 658 register_t *retval; 659 char *path; 660 svr4_mode_t mode; 661 svr4_dev_t dev; 662 { 663 char *newpath; 664 int error; 665 666 CHECKALTEXIST(td, path, &newpath); 667 668 if (S_ISFIFO(mode)) { 669 error = kern_mkfifoat(td, AT_FDCWD, newpath, UIO_SYSSPACE, 670 mode); 671 } else { 672 error = kern_mknodat(td, AT_FDCWD, newpath, UIO_SYSSPACE, 673 mode, dev); 674 } 675 free(newpath, M_TEMP); 676 return (error); 677 } 678 679 680 int 681 svr4_sys_mknod(td, uap) 682 struct thread *td; 683 struct svr4_sys_mknod_args *uap; 684 { 685 int *retval = td->td_retval; 686 return svr4_mknod(td, retval, 687 uap->path, uap->mode, 688 (svr4_dev_t)svr4_to_bsd_odev_t(uap->dev)); 689 } 690 691 692 int 693 svr4_sys_xmknod(td, uap) 694 struct thread *td; 695 struct svr4_sys_xmknod_args *uap; 696 { 697 int *retval = td->td_retval; 698 return svr4_mknod(td, retval, 699 uap->path, uap->mode, 700 (svr4_dev_t)svr4_to_bsd_dev_t(uap->dev)); 701 } 702 703 704 int 705 svr4_sys_vhangup(td, uap) 706 struct thread *td; 707 struct svr4_sys_vhangup_args *uap; 708 { 709 return 0; 710 } 711 712 713 int 714 svr4_sys_sysconfig(td, uap) 715 struct thread *td; 716 struct svr4_sys_sysconfig_args *uap; 717 { 718 int *retval; 719 720 retval = &(td->td_retval[0]); 721 722 switch (uap->name) { 723 case SVR4_CONFIG_NGROUPS: 724 *retval = ngroups_max; 725 break; 726 case SVR4_CONFIG_CHILD_MAX: 727 *retval = maxproc; 728 break; 729 case SVR4_CONFIG_OPEN_FILES: 730 *retval = maxfiles; 731 break; 732 case SVR4_CONFIG_POSIX_VER: 733 *retval = 198808; 734 break; 735 case SVR4_CONFIG_PAGESIZE: 736 *retval = PAGE_SIZE; 737 break; 738 case SVR4_CONFIG_CLK_TCK: 739 *retval = 60; /* should this be `hz', ie. 100? */ 740 break; 741 case SVR4_CONFIG_XOPEN_VER: 742 *retval = 2; /* XXX: What should that be? */ 743 break; 744 case SVR4_CONFIG_PROF_TCK: 745 *retval = 60; /* XXX: What should that be? */ 746 break; 747 case SVR4_CONFIG_NPROC_CONF: 748 *retval = 1; /* Only one processor for now */ 749 break; 750 case SVR4_CONFIG_NPROC_ONLN: 751 *retval = 1; /* And it better be online */ 752 break; 753 case SVR4_CONFIG_AIO_LISTIO_MAX: 754 case SVR4_CONFIG_AIO_MAX: 755 case SVR4_CONFIG_AIO_PRIO_DELTA_MAX: 756 *retval = 0; /* No aio support */ 757 break; 758 case SVR4_CONFIG_DELAYTIMER_MAX: 759 *retval = 0; /* No delaytimer support */ 760 break; 761 case SVR4_CONFIG_MQ_OPEN_MAX: 762 *retval = msginfo.msgmni; 763 break; 764 case SVR4_CONFIG_MQ_PRIO_MAX: 765 *retval = 0; /* XXX: Don't know */ 766 break; 767 case SVR4_CONFIG_RTSIG_MAX: 768 *retval = 0; 769 break; 770 case SVR4_CONFIG_SEM_NSEMS_MAX: 771 *retval = seminfo.semmni; 772 break; 773 case SVR4_CONFIG_SEM_VALUE_MAX: 774 *retval = seminfo.semvmx; 775 break; 776 case SVR4_CONFIG_SIGQUEUE_MAX: 777 *retval = 0; /* XXX: Don't know */ 778 break; 779 case SVR4_CONFIG_SIGRT_MIN: 780 case SVR4_CONFIG_SIGRT_MAX: 781 *retval = 0; /* No real time signals */ 782 break; 783 case SVR4_CONFIG_TIMER_MAX: 784 *retval = 3; /* XXX: real, virtual, profiling */ 785 break; 786 #if defined(NOTYET) 787 case SVR4_CONFIG_PHYS_PAGES: 788 #if defined(UVM) 789 *retval = uvmexp.free; /* XXX: free instead of total */ 790 #else 791 *retval = vm_cnt.v_free_count; /* XXX: free instead of total */ 792 #endif 793 break; 794 case SVR4_CONFIG_AVPHYS_PAGES: 795 #if defined(UVM) 796 *retval = uvmexp.active; /* XXX: active instead of avg */ 797 #else 798 *retval = vm_cnt.v_active_count;/* XXX: active instead of avg */ 799 #endif 800 break; 801 #endif /* NOTYET */ 802 case SVR4_CONFIG_COHERENCY: 803 *retval = 0; /* XXX */ 804 break; 805 case SVR4_CONFIG_SPLIT_CACHE: 806 *retval = 0; /* XXX */ 807 break; 808 case SVR4_CONFIG_ICACHESZ: 809 *retval = 256; /* XXX */ 810 break; 811 case SVR4_CONFIG_DCACHESZ: 812 *retval = 256; /* XXX */ 813 break; 814 case SVR4_CONFIG_ICACHELINESZ: 815 *retval = 64; /* XXX */ 816 break; 817 case SVR4_CONFIG_DCACHELINESZ: 818 *retval = 64; /* XXX */ 819 break; 820 case SVR4_CONFIG_ICACHEBLKSZ: 821 *retval = 64; /* XXX */ 822 break; 823 case SVR4_CONFIG_DCACHEBLKSZ: 824 *retval = 64; /* XXX */ 825 break; 826 case SVR4_CONFIG_DCACHETBLKSZ: 827 *retval = 64; /* XXX */ 828 break; 829 case SVR4_CONFIG_ICACHE_ASSOC: 830 *retval = 1; /* XXX */ 831 break; 832 case SVR4_CONFIG_DCACHE_ASSOC: 833 *retval = 1; /* XXX */ 834 break; 835 case SVR4_CONFIG_MAXPID: 836 *retval = PID_MAX; 837 break; 838 case SVR4_CONFIG_STACK_PROT: 839 *retval = PROT_READ|PROT_WRITE|PROT_EXEC; 840 break; 841 default: 842 return EINVAL; 843 } 844 return 0; 845 } 846 847 /* ARGSUSED */ 848 int 849 svr4_sys_break(td, uap) 850 struct thread *td; 851 struct svr4_sys_break_args *uap; 852 { 853 struct obreak_args ap; 854 855 ap.nsize = uap->nsize; 856 return (sys_obreak(td, &ap)); 857 } 858 859 static __inline clock_t 860 timeval_to_clock_t(tv) 861 struct timeval *tv; 862 { 863 return tv->tv_sec * hz + tv->tv_usec / (1000000 / hz); 864 } 865 866 867 int 868 svr4_sys_times(td, uap) 869 struct thread *td; 870 struct svr4_sys_times_args *uap; 871 { 872 struct timeval tv, utime, stime, cutime, cstime; 873 struct tms tms; 874 struct proc *p; 875 int error; 876 877 p = td->td_proc; 878 PROC_LOCK(p); 879 PROC_STATLOCK(p); 880 calcru(p, &utime, &stime); 881 PROC_STATUNLOCK(p); 882 calccru(p, &cutime, &cstime); 883 PROC_UNLOCK(p); 884 885 tms.tms_utime = timeval_to_clock_t(&utime); 886 tms.tms_stime = timeval_to_clock_t(&stime); 887 888 tms.tms_cutime = timeval_to_clock_t(&cutime); 889 tms.tms_cstime = timeval_to_clock_t(&cstime); 890 891 error = copyout(&tms, uap->tp, sizeof(tms)); 892 if (error) 893 return (error); 894 895 microtime(&tv); 896 td->td_retval[0] = (int)timeval_to_clock_t(&tv); 897 return (0); 898 } 899 900 901 int 902 svr4_sys_ulimit(td, uap) 903 struct thread *td; 904 struct svr4_sys_ulimit_args *uap; 905 { 906 int *retval = td->td_retval; 907 int error; 908 909 switch (uap->cmd) { 910 case SVR4_GFILLIM: 911 *retval = lim_cur(td, RLIMIT_FSIZE) / 512; 912 if (*retval == -1) 913 *retval = 0x7fffffff; 914 return 0; 915 916 case SVR4_SFILLIM: 917 { 918 struct rlimit krl; 919 920 krl.rlim_cur = uap->newlimit * 512; 921 krl.rlim_max = lim_max(td, RLIMIT_FSIZE); 922 923 error = kern_setrlimit(td, RLIMIT_FSIZE, &krl); 924 if (error) 925 return error; 926 927 *retval = lim_cur(td, RLIMIT_FSIZE); 928 if (*retval == -1) 929 *retval = 0x7fffffff; 930 return 0; 931 } 932 933 case SVR4_GMEMLIM: 934 { 935 struct vmspace *vm = td->td_proc->p_vmspace; 936 register_t r; 937 938 r = lim_cur(td, RLIMIT_DATA); 939 940 if (r == -1) 941 r = 0x7fffffff; 942 r += (long) vm->vm_daddr; 943 if (r < 0) 944 r = 0x7fffffff; 945 *retval = r; 946 return 0; 947 } 948 949 case SVR4_GDESLIM: 950 *retval = lim_cur(td, RLIMIT_NOFILE); 951 if (*retval == -1) 952 *retval = 0x7fffffff; 953 return 0; 954 955 default: 956 return EINVAL; 957 } 958 } 959 960 static struct proc * 961 svr4_pfind(pid) 962 pid_t pid; 963 { 964 struct proc *p; 965 966 /* look in the live processes */ 967 if ((p = pfind(pid)) == NULL) 968 /* look in the zombies */ 969 p = zpfind(pid); 970 971 return p; 972 } 973 974 975 int 976 svr4_sys_pgrpsys(td, uap) 977 struct thread *td; 978 struct svr4_sys_pgrpsys_args *uap; 979 { 980 int *retval = td->td_retval; 981 struct proc *p = td->td_proc; 982 983 switch (uap->cmd) { 984 case 1: /* setpgrp() */ 985 /* 986 * SVR4 setpgrp() (which takes no arguments) has the 987 * semantics that the session ID is also created anew, so 988 * in almost every sense, setpgrp() is identical to 989 * setsid() for SVR4. (Under BSD, the difference is that 990 * a setpgid(0,0) will not create a new session.) 991 */ 992 sys_setsid(td, NULL); 993 /*FALLTHROUGH*/ 994 995 case 0: /* getpgrp() */ 996 PROC_LOCK(p); 997 *retval = p->p_pgrp->pg_id; 998 PROC_UNLOCK(p); 999 return 0; 1000 1001 case 2: /* getsid(pid) */ 1002 if (uap->pid == 0) 1003 PROC_LOCK(p); 1004 else if ((p = svr4_pfind(uap->pid)) == NULL) 1005 return ESRCH; 1006 /* 1007 * This has already been initialized to the pid of 1008 * the session leader. 1009 */ 1010 *retval = (register_t) p->p_session->s_sid; 1011 PROC_UNLOCK(p); 1012 return 0; 1013 1014 case 3: /* setsid() */ 1015 return sys_setsid(td, NULL); 1016 1017 case 4: /* getpgid(pid) */ 1018 1019 if (uap->pid == 0) 1020 PROC_LOCK(p); 1021 else if ((p = svr4_pfind(uap->pid)) == NULL) 1022 return ESRCH; 1023 1024 *retval = (int) p->p_pgrp->pg_id; 1025 PROC_UNLOCK(p); 1026 return 0; 1027 1028 case 5: /* setpgid(pid, pgid); */ 1029 { 1030 struct setpgid_args sa; 1031 1032 sa.pid = uap->pid; 1033 sa.pgid = uap->pgid; 1034 return sys_setpgid(td, &sa); 1035 } 1036 1037 default: 1038 return EINVAL; 1039 } 1040 } 1041 1042 struct svr4_hrtcntl_args { 1043 int cmd; 1044 int fun; 1045 int clk; 1046 svr4_hrt_interval_t * iv; 1047 svr4_hrt_time_t * ti; 1048 }; 1049 1050 1051 static int 1052 svr4_hrtcntl(td, uap, retval) 1053 struct thread *td; 1054 struct svr4_hrtcntl_args *uap; 1055 register_t *retval; 1056 { 1057 switch (uap->fun) { 1058 case SVR4_HRT_CNTL_RES: 1059 DPRINTF(("htrcntl(RES)\n")); 1060 *retval = SVR4_HRT_USEC; 1061 return 0; 1062 1063 case SVR4_HRT_CNTL_TOFD: 1064 DPRINTF(("htrcntl(TOFD)\n")); 1065 { 1066 struct timeval tv; 1067 svr4_hrt_time_t t; 1068 if (uap->clk != SVR4_HRT_CLK_STD) { 1069 DPRINTF(("clk == %d\n", uap->clk)); 1070 return EINVAL; 1071 } 1072 if (uap->ti == NULL) { 1073 DPRINTF(("ti NULL\n")); 1074 return EINVAL; 1075 } 1076 microtime(&tv); 1077 t.h_sec = tv.tv_sec; 1078 t.h_rem = tv.tv_usec; 1079 t.h_res = SVR4_HRT_USEC; 1080 return copyout(&t, uap->ti, sizeof(t)); 1081 } 1082 1083 case SVR4_HRT_CNTL_START: 1084 DPRINTF(("htrcntl(START)\n")); 1085 return ENOSYS; 1086 1087 case SVR4_HRT_CNTL_GET: 1088 DPRINTF(("htrcntl(GET)\n")); 1089 return ENOSYS; 1090 default: 1091 DPRINTF(("Bad htrcntl command %d\n", uap->fun)); 1092 return ENOSYS; 1093 } 1094 } 1095 1096 1097 int 1098 svr4_sys_hrtsys(td, uap) 1099 struct thread *td; 1100 struct svr4_sys_hrtsys_args *uap; 1101 { 1102 int *retval = td->td_retval; 1103 1104 switch (uap->cmd) { 1105 case SVR4_HRT_CNTL: 1106 return svr4_hrtcntl(td, (struct svr4_hrtcntl_args *) uap, 1107 retval); 1108 1109 case SVR4_HRT_ALRM: 1110 DPRINTF(("hrtalarm\n")); 1111 return ENOSYS; 1112 1113 case SVR4_HRT_SLP: 1114 DPRINTF(("hrtsleep\n")); 1115 return ENOSYS; 1116 1117 case SVR4_HRT_CAN: 1118 DPRINTF(("hrtcancel\n")); 1119 return ENOSYS; 1120 1121 default: 1122 DPRINTF(("Bad hrtsys command %d\n", uap->cmd)); 1123 return EINVAL; 1124 } 1125 } 1126 1127 1128 static int 1129 svr4_setinfo(pid, ru, st, s) 1130 pid_t pid; 1131 struct rusage *ru; 1132 int st; 1133 svr4_siginfo_t *s; 1134 { 1135 svr4_siginfo_t i; 1136 int sig; 1137 1138 memset(&i, 0, sizeof(i)); 1139 1140 i.svr4_si_signo = SVR4_SIGCHLD; 1141 i.svr4_si_errno = 0; /* XXX? */ 1142 1143 i.svr4_si_pid = pid; 1144 if (ru) { 1145 i.svr4_si_stime = ru->ru_stime.tv_sec; 1146 i.svr4_si_utime = ru->ru_utime.tv_sec; 1147 } 1148 1149 if (WIFEXITED(st)) { 1150 i.svr4_si_status = WEXITSTATUS(st); 1151 i.svr4_si_code = SVR4_CLD_EXITED; 1152 } else if (WIFSTOPPED(st)) { 1153 sig = WSTOPSIG(st); 1154 if (sig >= 0 && sig < NSIG) 1155 i.svr4_si_status = SVR4_BSD2SVR4_SIG(sig); 1156 1157 if (i.svr4_si_status == SVR4_SIGCONT) 1158 i.svr4_si_code = SVR4_CLD_CONTINUED; 1159 else 1160 i.svr4_si_code = SVR4_CLD_STOPPED; 1161 } else { 1162 sig = WTERMSIG(st); 1163 if (sig >= 0 && sig < NSIG) 1164 i.svr4_si_status = SVR4_BSD2SVR4_SIG(sig); 1165 1166 if (WCOREDUMP(st)) 1167 i.svr4_si_code = SVR4_CLD_DUMPED; 1168 else 1169 i.svr4_si_code = SVR4_CLD_KILLED; 1170 } 1171 1172 DPRINTF(("siginfo [pid %ld signo %d code %d errno %d status %d]\n", 1173 i.svr4_si_pid, i.svr4_si_signo, i.svr4_si_code, i.svr4_si_errno, 1174 i.svr4_si_status)); 1175 1176 return copyout(&i, s, sizeof(i)); 1177 } 1178 1179 1180 int 1181 svr4_sys_waitsys(td, uap) 1182 struct thread *td; 1183 struct svr4_sys_waitsys_args *uap; 1184 { 1185 struct rusage ru; 1186 pid_t pid; 1187 int nfound, status; 1188 int error, *retval = td->td_retval; 1189 struct proc *p, *q; 1190 1191 DPRINTF(("waitsys(%d, %d, %p, %x)\n", 1192 uap->grp, uap->id, 1193 uap->info, uap->options)); 1194 1195 q = td->td_proc; 1196 switch (uap->grp) { 1197 case SVR4_P_PID: 1198 pid = uap->id; 1199 break; 1200 1201 case SVR4_P_PGID: 1202 PROC_LOCK(q); 1203 pid = -q->p_pgid; 1204 PROC_UNLOCK(q); 1205 break; 1206 1207 case SVR4_P_ALL: 1208 pid = WAIT_ANY; 1209 break; 1210 1211 default: 1212 return EINVAL; 1213 } 1214 1215 /* Hand off the easy cases to kern_wait(). */ 1216 if (!(uap->options & (SVR4_WNOWAIT)) && 1217 (uap->options & (SVR4_WEXITED | SVR4_WTRAPPED))) { 1218 int options; 1219 1220 options = 0; 1221 if (uap->options & SVR4_WSTOPPED) 1222 options |= WUNTRACED; 1223 if (uap->options & SVR4_WCONTINUED) 1224 options |= WCONTINUED; 1225 if (uap->options & SVR4_WNOHANG) 1226 options |= WNOHANG; 1227 1228 error = kern_wait(td, pid, &status, options, &ru); 1229 if (error) 1230 return (error); 1231 if (uap->options & SVR4_WNOHANG && *retval == 0) 1232 error = svr4_setinfo(*retval, NULL, 0, uap->info); 1233 else 1234 error = svr4_setinfo(*retval, &ru, status, uap->info); 1235 *retval = 0; 1236 return (error); 1237 } 1238 1239 /* 1240 * Ok, handle the weird cases. Either WNOWAIT is set (meaning we 1241 * just want to see if there is a process to harvest, we don't 1242 * want to actually harvest it), or WEXIT and WTRAPPED are clear 1243 * meaning we want to ignore zombies. Either way, we don't have 1244 * to handle harvesting zombies here. We do have to duplicate the 1245 * other portions of kern_wait() though, especially for WCONTINUED 1246 * and WSTOPPED. 1247 */ 1248 loop: 1249 nfound = 0; 1250 sx_slock(&proctree_lock); 1251 LIST_FOREACH(p, &q->p_children, p_sibling) { 1252 PROC_LOCK(p); 1253 if (pid != WAIT_ANY && 1254 p->p_pid != pid && p->p_pgid != -pid) { 1255 PROC_UNLOCK(p); 1256 DPRINTF(("pid %d pgid %d != %d\n", p->p_pid, 1257 p->p_pgid, pid)); 1258 continue; 1259 } 1260 if (p_canwait(td, p)) { 1261 PROC_UNLOCK(p); 1262 continue; 1263 } 1264 1265 nfound++; 1266 1267 PROC_SLOCK(p); 1268 /* 1269 * See if we have a zombie. If so, WNOWAIT should be set, 1270 * as otherwise we should have called kern_wait() up above. 1271 */ 1272 if ((p->p_state == PRS_ZOMBIE) && 1273 ((uap->options & (SVR4_WEXITED|SVR4_WTRAPPED)))) { 1274 PROC_SUNLOCK(p); 1275 KASSERT(uap->options & SVR4_WNOWAIT, 1276 ("WNOWAIT is clear")); 1277 1278 /* Found a zombie, so cache info in local variables. */ 1279 pid = p->p_pid; 1280 status = KW_EXITCODE(p->p_xexit, p->p_xsig); 1281 ru = p->p_ru; 1282 PROC_STATLOCK(p); 1283 calcru(p, &ru.ru_utime, &ru.ru_stime); 1284 PROC_STATUNLOCK(p); 1285 PROC_UNLOCK(p); 1286 sx_sunlock(&proctree_lock); 1287 1288 /* Copy the info out to userland. */ 1289 *retval = 0; 1290 DPRINTF(("found %d\n", pid)); 1291 return (svr4_setinfo(pid, &ru, status, uap->info)); 1292 } 1293 1294 /* 1295 * See if we have a stopped or continued process. 1296 * XXX: This duplicates the same code in kern_wait(). 1297 */ 1298 if ((p->p_flag & P_STOPPED_SIG) && 1299 (p->p_suspcount == p->p_numthreads) && 1300 (p->p_flag & P_WAITED) == 0 && 1301 (p->p_flag & P_TRACED || uap->options & SVR4_WSTOPPED)) { 1302 PROC_SUNLOCK(p); 1303 if (((uap->options & SVR4_WNOWAIT)) == 0) 1304 p->p_flag |= P_WAITED; 1305 sx_sunlock(&proctree_lock); 1306 pid = p->p_pid; 1307 status = W_STOPCODE(p->p_xsig); 1308 ru = p->p_ru; 1309 PROC_STATLOCK(p); 1310 calcru(p, &ru.ru_utime, &ru.ru_stime); 1311 PROC_STATUNLOCK(p); 1312 PROC_UNLOCK(p); 1313 1314 if (((uap->options & SVR4_WNOWAIT)) == 0) { 1315 PROC_LOCK(q); 1316 sigqueue_take(p->p_ksi); 1317 PROC_UNLOCK(q); 1318 } 1319 1320 *retval = 0; 1321 DPRINTF(("jobcontrol %d\n", pid)); 1322 return (svr4_setinfo(pid, &ru, status, uap->info)); 1323 } 1324 PROC_SUNLOCK(p); 1325 if (uap->options & SVR4_WCONTINUED && 1326 (p->p_flag & P_CONTINUED)) { 1327 sx_sunlock(&proctree_lock); 1328 if (((uap->options & SVR4_WNOWAIT)) == 0) 1329 p->p_flag &= ~P_CONTINUED; 1330 pid = p->p_pid; 1331 ru = p->p_ru; 1332 status = SIGCONT; 1333 PROC_STATLOCK(p); 1334 calcru(p, &ru.ru_utime, &ru.ru_stime); 1335 PROC_STATUNLOCK(p); 1336 PROC_UNLOCK(p); 1337 1338 if (((uap->options & SVR4_WNOWAIT)) == 0) { 1339 PROC_LOCK(q); 1340 sigqueue_take(p->p_ksi); 1341 PROC_UNLOCK(q); 1342 } 1343 1344 *retval = 0; 1345 DPRINTF(("jobcontrol %d\n", pid)); 1346 return (svr4_setinfo(pid, &ru, status, uap->info)); 1347 } 1348 PROC_UNLOCK(p); 1349 } 1350 1351 if (nfound == 0) { 1352 sx_sunlock(&proctree_lock); 1353 return (ECHILD); 1354 } 1355 1356 if (uap->options & SVR4_WNOHANG) { 1357 sx_sunlock(&proctree_lock); 1358 *retval = 0; 1359 return (svr4_setinfo(0, NULL, 0, uap->info)); 1360 } 1361 1362 PROC_LOCK(q); 1363 sx_sunlock(&proctree_lock); 1364 if (q->p_flag & P_STATCHILD) { 1365 q->p_flag &= ~P_STATCHILD; 1366 error = 0; 1367 } else 1368 error = msleep(q, &q->p_mtx, PWAIT | PCATCH, "svr4_wait", 0); 1369 PROC_UNLOCK(q); 1370 if (error) 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 bfs = malloc(sizeof(struct statfs), M_STATFS, M_WAITOK); 1441 error = kern_statfs(td, path, UIO_SYSSPACE, bfs); 1442 free(path, M_TEMP); 1443 if (error == 0) 1444 bsd_statfs_to_svr4_statvfs(bfs, &sfs); 1445 free(bfs, M_STATFS); 1446 if (error != 0) 1447 return (error); 1448 return copyout(&sfs, uap->fs, sizeof(sfs)); 1449 } 1450 1451 1452 int 1453 svr4_sys_fstatvfs(td, uap) 1454 struct thread *td; 1455 struct svr4_sys_fstatvfs_args *uap; 1456 { 1457 struct svr4_statvfs sfs; 1458 struct statfs *bfs; 1459 int error; 1460 1461 bfs = malloc(sizeof(struct statfs), M_STATFS, M_WAITOK); 1462 error = kern_fstatfs(td, uap->fd, bfs); 1463 if (error == 0) 1464 bsd_statfs_to_svr4_statvfs(bfs, &sfs); 1465 free(bfs, M_STATFS); 1466 if (error != 0) 1467 return (error); 1468 return copyout(&sfs, uap->fs, sizeof(sfs)); 1469 } 1470 1471 1472 int 1473 svr4_sys_statvfs64(td, uap) 1474 struct thread *td; 1475 struct svr4_sys_statvfs64_args *uap; 1476 { 1477 struct svr4_statvfs64 sfs; 1478 struct statfs *bfs; 1479 char *path; 1480 int error; 1481 1482 CHECKALTEXIST(td, uap->path, &path); 1483 1484 bfs = malloc(sizeof(struct statfs), M_STATFS, M_WAITOK); 1485 error = kern_statfs(td, path, UIO_SYSSPACE, bfs); 1486 free(path, M_TEMP); 1487 if (error == 0) 1488 bsd_statfs_to_svr4_statvfs64(bfs, &sfs); 1489 free(bfs, M_STATFS); 1490 if (error != 0) 1491 return (error); 1492 return copyout(&sfs, uap->fs, sizeof(sfs)); 1493 } 1494 1495 1496 int 1497 svr4_sys_fstatvfs64(td, uap) 1498 struct thread *td; 1499 struct svr4_sys_fstatvfs64_args *uap; 1500 { 1501 struct svr4_statvfs64 sfs; 1502 struct statfs *bfs; 1503 int error; 1504 1505 bfs = malloc(sizeof(struct statfs), M_STATFS, M_WAITOK); 1506 error = kern_fstatfs(td, uap->fd, bfs); 1507 if (error == 0) 1508 bsd_statfs_to_svr4_statvfs64(bfs, &sfs); 1509 free(bfs, M_STATFS); 1510 if (error != 0) 1511 return (error); 1512 return copyout(&sfs, uap->fs, sizeof(sfs)); 1513 } 1514 1515 int 1516 svr4_sys_alarm(td, uap) 1517 struct thread *td; 1518 struct svr4_sys_alarm_args *uap; 1519 { 1520 struct itimerval itv, oitv; 1521 int error; 1522 1523 timevalclear(&itv.it_interval); 1524 itv.it_value.tv_sec = uap->sec; 1525 itv.it_value.tv_usec = 0; 1526 error = kern_setitimer(td, ITIMER_REAL, &itv, &oitv); 1527 if (error) 1528 return (error); 1529 if (oitv.it_value.tv_usec != 0) 1530 oitv.it_value.tv_sec++; 1531 td->td_retval[0] = oitv.it_value.tv_sec; 1532 return (0); 1533 } 1534 1535 int 1536 svr4_sys_gettimeofday(td, uap) 1537 struct thread *td; 1538 struct svr4_sys_gettimeofday_args *uap; 1539 { 1540 if (uap->tp) { 1541 struct timeval atv; 1542 1543 microtime(&atv); 1544 return copyout(&atv, uap->tp, sizeof (atv)); 1545 } 1546 1547 return 0; 1548 } 1549 1550 int 1551 svr4_sys_facl(td, uap) 1552 struct thread *td; 1553 struct svr4_sys_facl_args *uap; 1554 { 1555 int *retval; 1556 1557 retval = td->td_retval; 1558 *retval = 0; 1559 1560 switch (uap->cmd) { 1561 case SVR4_SYS_SETACL: 1562 /* We don't support acls on any filesystem */ 1563 return ENOSYS; 1564 1565 case SVR4_SYS_GETACL: 1566 return copyout(retval, &uap->num, 1567 sizeof(uap->num)); 1568 1569 case SVR4_SYS_GETACLCNT: 1570 return 0; 1571 1572 default: 1573 return EINVAL; 1574 } 1575 } 1576 1577 1578 int 1579 svr4_sys_acl(td, uap) 1580 struct thread *td; 1581 struct svr4_sys_acl_args *uap; 1582 { 1583 /* XXX: for now the same */ 1584 return svr4_sys_facl(td, (struct svr4_sys_facl_args *)uap); 1585 } 1586 1587 int 1588 svr4_sys_auditsys(td, uap) 1589 struct thread *td; 1590 struct svr4_sys_auditsys_args *uap; 1591 { 1592 /* 1593 * XXX: Big brother is *not* watching. 1594 */ 1595 return 0; 1596 } 1597 1598 int 1599 svr4_sys_memcntl(td, uap) 1600 struct thread *td; 1601 struct svr4_sys_memcntl_args *uap; 1602 { 1603 switch (uap->cmd) { 1604 case SVR4_MC_SYNC: 1605 { 1606 struct msync_args msa; 1607 1608 msa.addr = uap->addr; 1609 msa.len = uap->len; 1610 msa.flags = (int)uap->arg; 1611 1612 return sys_msync(td, &msa); 1613 } 1614 case SVR4_MC_ADVISE: 1615 { 1616 struct madvise_args maa; 1617 1618 maa.addr = uap->addr; 1619 maa.len = uap->len; 1620 maa.behav = (int)uap->arg; 1621 1622 return sys_madvise(td, &maa); 1623 } 1624 case SVR4_MC_LOCK: 1625 case SVR4_MC_UNLOCK: 1626 case SVR4_MC_LOCKAS: 1627 case SVR4_MC_UNLOCKAS: 1628 return EOPNOTSUPP; 1629 default: 1630 return ENOSYS; 1631 } 1632 } 1633 1634 1635 int 1636 svr4_sys_nice(td, uap) 1637 struct thread *td; 1638 struct svr4_sys_nice_args *uap; 1639 { 1640 struct setpriority_args ap; 1641 int error; 1642 1643 ap.which = PRIO_PROCESS; 1644 ap.who = 0; 1645 ap.prio = uap->prio; 1646 1647 if ((error = sys_setpriority(td, &ap)) != 0) 1648 return error; 1649 1650 /* the cast is stupid, but the structures are the same */ 1651 if ((error = sys_getpriority(td, (struct getpriority_args *)&ap)) != 0) 1652 return error; 1653 1654 return 0; 1655 } 1656 1657 int 1658 svr4_sys_resolvepath(td, uap) 1659 struct thread *td; 1660 struct svr4_sys_resolvepath_args *uap; 1661 { 1662 struct nameidata nd; 1663 int error, *retval = td->td_retval; 1664 unsigned int ncopy; 1665 1666 NDINIT(&nd, LOOKUP, NOFOLLOW | SAVENAME, UIO_USERSPACE, 1667 uap->path, td); 1668 1669 if ((error = namei(&nd)) != 0) 1670 return (error); 1671 NDFREE(&nd, NDF_NO_FREE_PNBUF); 1672 1673 ncopy = min(uap->bufsiz, strlen(nd.ni_cnd.cn_pnbuf) + 1); 1674 if ((error = copyout(nd.ni_cnd.cn_pnbuf, uap->buf, ncopy)) != 0) 1675 goto bad; 1676 1677 *retval = ncopy; 1678 bad: 1679 NDFREE(&nd, NDF_ONLY_PNBUF); 1680 return error; 1681 }
Cache object: e4b5bda7c344bcb7233f41c298828827
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