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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/7.4/sys/compat/svr4/svr4_misc.c 201413 2010-01-03 03:23:17Z delphij $"); 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/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/priv.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 <security/mac/mac_framework.h> 87 88 #include <machine/vmparam.h> 89 #include <vm/vm.h> 90 #include <vm/vm_param.h> 91 #include <vm/vm_map.h> 92 #if defined(__FreeBSD__) 93 #include <vm/uma.h> 94 #include <vm/vm_extern.h> 95 #endif 96 97 #if defined(NetBSD) 98 # if defined(UVM) 99 # include <uvm/uvm_extern.h> 100 # endif 101 #endif 102 103 #define BSD_DIRENT(cp) ((struct dirent *)(cp)) 104 105 static int svr4_mknod(struct thread *, register_t *, char *, 106 svr4_mode_t, svr4_dev_t); 107 108 static __inline clock_t timeval_to_clock_t(struct timeval *); 109 static int svr4_setinfo (pid_t , struct rusage *, int, svr4_siginfo_t *); 110 111 struct svr4_hrtcntl_args; 112 static int svr4_hrtcntl (struct thread *, struct svr4_hrtcntl_args *, 113 register_t *); 114 static void bsd_statfs_to_svr4_statvfs(const struct statfs *, 115 struct svr4_statvfs *); 116 static void bsd_statfs_to_svr4_statvfs64(const struct statfs *, 117 struct svr4_statvfs64 *); 118 static struct proc *svr4_pfind(pid_t pid); 119 120 /* BOGUS noop */ 121 #if defined(BOGUS) 122 int 123 svr4_sys_setitimer(td, uap) 124 register struct thread *td; 125 struct svr4_sys_setitimer_args *uap; 126 { 127 td->td_retval[0] = 0; 128 return 0; 129 } 130 #endif 131 132 int 133 svr4_sys_wait(td, uap) 134 struct thread *td; 135 struct svr4_sys_wait_args *uap; 136 { 137 int error, st, sig; 138 139 error = kern_wait(td, WAIT_ANY, &st, 0, NULL); 140 if (error) 141 return (error); 142 143 if (WIFSIGNALED(st)) { 144 sig = WTERMSIG(st); 145 if (sig >= 0 && sig < NSIG) 146 st = (st & ~0177) | SVR4_BSD2SVR4_SIG(sig); 147 } else if (WIFSTOPPED(st)) { 148 sig = WSTOPSIG(st); 149 if (sig >= 0 && sig < NSIG) 150 st = (st & ~0xff00) | (SVR4_BSD2SVR4_SIG(sig) << 8); 151 } 152 153 /* 154 * It looks like wait(2) on svr4/solaris/2.4 returns 155 * the status in retval[1], and the pid on retval[0]. 156 */ 157 td->td_retval[1] = st; 158 159 if (uap->status) 160 error = copyout(&st, uap->status, sizeof(st)); 161 162 return (error); 163 } 164 165 int 166 svr4_sys_execv(td, uap) 167 struct thread *td; 168 struct svr4_sys_execv_args *uap; 169 { 170 struct image_args eargs; 171 char *path; 172 int error; 173 174 CHECKALTEXIST(td, uap->path, &path); 175 176 error = exec_copyin_args(&eargs, path, UIO_SYSSPACE, uap->argp, NULL); 177 free(path, M_TEMP); 178 if (error == 0) 179 error = kern_execve(td, &eargs, NULL); 180 return (error); 181 } 182 183 int 184 svr4_sys_execve(td, uap) 185 struct thread *td; 186 struct svr4_sys_execve_args *uap; 187 { 188 struct image_args eargs; 189 char *path; 190 int error; 191 192 CHECKALTEXIST(td, uap->path, &path); 193 194 error = exec_copyin_args(&eargs, path, UIO_SYSSPACE, uap->argp, 195 uap->envp); 196 free(path, M_TEMP); 197 if (error == 0) 198 error = kern_execve(td, &eargs, NULL); 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, vfslocked; 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 vfslocked = VFS_LOCK_GIANT(vp->v_mount); 262 if (vp->v_type != VDIR) { 263 VFS_UNLOCK_GIANT(vfslocked); 264 fdrop(fp, td); 265 return (EINVAL); 266 } 267 268 nbytes = uap->nbytes; 269 if (nbytes == 1) { 270 nbytes = sizeof (struct svr4_dirent64); 271 justone = 1; 272 } 273 else 274 justone = 0; 275 276 off = fp->f_offset; 277 #define DIRBLKSIZ 512 /* XXX we used to use ufs's DIRBLKSIZ */ 278 buflen = max(DIRBLKSIZ, nbytes); 279 buflen = min(buflen, MAXBSIZE); 280 buf = malloc(buflen, M_TEMP, M_WAITOK); 281 vn_lock(vp, LK_SHARED | LK_RETRY, td); 282 again: 283 aiov.iov_base = buf; 284 aiov.iov_len = buflen; 285 auio.uio_iov = &aiov; 286 auio.uio_iovcnt = 1; 287 auio.uio_rw = UIO_READ; 288 auio.uio_segflg = UIO_SYSSPACE; 289 auio.uio_td = td; 290 auio.uio_resid = buflen; 291 auio.uio_offset = off; 292 293 if (cookies) { 294 free(cookies, M_TEMP); 295 cookies = NULL; 296 } 297 298 #ifdef MAC 299 error = mac_check_vnode_readdir(td->td_ucred, vp); 300 if (error) 301 goto out; 302 #endif 303 304 error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag, 305 &ncookies, &cookies); 306 if (error) { 307 goto out; 308 } 309 310 inp = buf; 311 outp = (caddr_t) uap->dp; 312 resid = nbytes; 313 if ((len = buflen - auio.uio_resid) <= 0) { 314 goto eof; 315 } 316 317 cookiep = cookies; 318 319 if (cookies) { 320 /* 321 * When using cookies, the vfs has the option of reading from 322 * a different offset than that supplied (UFS truncates the 323 * offset to a block boundary to make sure that it never reads 324 * partway through a directory entry, even if the directory 325 * has been compacted). 326 */ 327 while (len > 0 && ncookies > 0 && *cookiep <= off) { 328 bdp = (struct dirent *) inp; 329 len -= bdp->d_reclen; 330 inp += bdp->d_reclen; 331 cookiep++; 332 ncookies--; 333 } 334 } 335 336 while (len > 0) { 337 if (cookiep && ncookies == 0) 338 break; 339 bdp = (struct dirent *) inp; 340 reclen = bdp->d_reclen; 341 if (reclen & 3) { 342 DPRINTF(("svr4_readdir: reclen=%d\n", reclen)); 343 error = EFAULT; 344 goto out; 345 } 346 347 if (bdp->d_fileno == 0) { 348 inp += reclen; 349 if (cookiep) { 350 off = *cookiep++; 351 ncookies--; 352 } else 353 off += reclen; 354 len -= reclen; 355 continue; 356 } 357 svr4reclen = SVR4_RECLEN(&svr4_dirent, bdp->d_namlen); 358 if (reclen > len || resid < svr4reclen) { 359 outp++; 360 break; 361 } 362 svr4_dirent.d_ino = (long) bdp->d_fileno; 363 if (justone) { 364 /* 365 * old svr4-style readdir usage. 366 */ 367 svr4_dirent.d_off = (svr4_off_t) svr4reclen; 368 svr4_dirent.d_reclen = (u_short) bdp->d_namlen; 369 } else { 370 svr4_dirent.d_off = (svr4_off_t)(off + reclen); 371 svr4_dirent.d_reclen = (u_short) svr4reclen; 372 } 373 strcpy(svr4_dirent.d_name, bdp->d_name); 374 if ((error = copyout((caddr_t)&svr4_dirent, outp, svr4reclen))) 375 goto out; 376 inp += reclen; 377 if (cookiep) { 378 off = *cookiep++; 379 ncookies--; 380 } else 381 off += reclen; 382 outp += svr4reclen; 383 resid -= svr4reclen; 384 len -= reclen; 385 if (justone) 386 break; 387 } 388 389 if (outp == (caddr_t) uap->dp) 390 goto again; 391 fp->f_offset = off; 392 393 if (justone) 394 nbytes = resid + svr4reclen; 395 396 eof: 397 td->td_retval[0] = nbytes - resid; 398 out: 399 VOP_UNLOCK(vp, 0, td); 400 VFS_UNLOCK_GIANT(vfslocked); 401 fdrop(fp, td); 402 if (cookies) 403 free(cookies, M_TEMP); 404 free(buf, M_TEMP); 405 return error; 406 } 407 408 409 int 410 svr4_sys_getdents(td, uap) 411 struct thread *td; 412 struct svr4_sys_getdents_args *uap; 413 { 414 struct dirent *bdp; 415 struct vnode *vp; 416 caddr_t inp, buf; /* BSD-format */ 417 int len, reclen; /* BSD-format */ 418 caddr_t outp; /* SVR4-format */ 419 int resid, svr4_reclen; /* SVR4-format */ 420 struct file *fp; 421 struct uio auio; 422 struct iovec aiov; 423 struct svr4_dirent idb; 424 off_t off; /* true file offset */ 425 int buflen, error, eofflag, vfslocked; 426 u_long *cookiebuf = NULL, *cookie; 427 int ncookies = 0, *retval = td->td_retval; 428 429 if (uap->nbytes < 0) 430 return (EINVAL); 431 432 if ((error = getvnode(td->td_proc->p_fd, uap->fd, &fp)) != 0) 433 return (error); 434 435 if ((fp->f_flag & FREAD) == 0) { 436 fdrop(fp, td); 437 return (EBADF); 438 } 439 440 vp = fp->f_vnode; 441 vfslocked = VFS_LOCK_GIANT(vp->v_mount); 442 if (vp->v_type != VDIR) { 443 VFS_UNLOCK_GIANT(vfslocked); 444 fdrop(fp, td); 445 return (EINVAL); 446 } 447 448 buflen = min(MAXBSIZE, uap->nbytes); 449 buf = malloc(buflen, M_TEMP, M_WAITOK); 450 vn_lock(vp, LK_SHARED | LK_RETRY, td); 451 off = fp->f_offset; 452 again: 453 aiov.iov_base = buf; 454 aiov.iov_len = buflen; 455 auio.uio_iov = &aiov; 456 auio.uio_iovcnt = 1; 457 auio.uio_rw = UIO_READ; 458 auio.uio_segflg = UIO_SYSSPACE; 459 auio.uio_td = td; 460 auio.uio_resid = buflen; 461 auio.uio_offset = off; 462 463 #ifdef MAC 464 error = mac_check_vnode_readdir(td->td_ucred, vp); 465 if (error) 466 goto out; 467 #endif 468 469 /* 470 * First we read into the malloc'ed buffer, then 471 * we massage it into user space, one record at a time. 472 */ 473 error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag, &ncookies, 474 &cookiebuf); 475 if (error) { 476 goto out; 477 } 478 479 inp = buf; 480 outp = uap->buf; 481 resid = uap->nbytes; 482 if ((len = buflen - auio.uio_resid) == 0) 483 goto eof; 484 485 for (cookie = cookiebuf; len > 0; len -= reclen) { 486 bdp = (struct dirent *)inp; 487 reclen = bdp->d_reclen; 488 if (reclen & 3) 489 panic("svr4_sys_getdents64: bad reclen"); 490 off = *cookie++; /* each entry points to the next */ 491 if ((off >> 32) != 0) { 492 uprintf("svr4_sys_getdents64: dir offset too large for emulated program"); 493 error = EINVAL; 494 goto out; 495 } 496 if (bdp->d_fileno == 0) { 497 inp += reclen; /* it is a hole; squish it out */ 498 continue; 499 } 500 svr4_reclen = SVR4_RECLEN(&idb, bdp->d_namlen); 501 if (reclen > len || resid < svr4_reclen) { 502 /* entry too big for buffer, so just stop */ 503 outp++; 504 break; 505 } 506 /* 507 * Massage in place to make a SVR4-shaped dirent (otherwise 508 * we have to worry about touching user memory outside of 509 * the copyout() call). 510 */ 511 idb.d_ino = (svr4_ino_t)bdp->d_fileno; 512 idb.d_off = (svr4_off_t)off; 513 idb.d_reclen = (u_short)svr4_reclen; 514 strcpy(idb.d_name, bdp->d_name); 515 if ((error = copyout((caddr_t)&idb, outp, svr4_reclen))) 516 goto out; 517 /* advance past this real entry */ 518 inp += reclen; 519 /* advance output past SVR4-shaped entry */ 520 outp += svr4_reclen; 521 resid -= svr4_reclen; 522 } 523 524 /* if we squished out the whole block, try again */ 525 if (outp == uap->buf) 526 goto again; 527 fp->f_offset = off; /* update the vnode offset */ 528 529 eof: 530 *retval = uap->nbytes - resid; 531 out: 532 VOP_UNLOCK(vp, 0, td); 533 VFS_UNLOCK_GIANT(vfslocked); 534 fdrop(fp, td); 535 if (cookiebuf) 536 free(cookiebuf, M_TEMP); 537 free(buf, M_TEMP); 538 return error; 539 } 540 541 542 int 543 svr4_sys_mmap(td, uap) 544 struct thread *td; 545 struct svr4_sys_mmap_args *uap; 546 { 547 struct mmap_args mm; 548 int *retval; 549 550 retval = td->td_retval; 551 #define _MAP_NEW 0x80000000 552 /* 553 * Verify the arguments. 554 */ 555 if (uap->prot & ~(PROT_READ | PROT_WRITE | PROT_EXEC)) 556 return EINVAL; /* XXX still needed? */ 557 558 if (uap->len == 0) 559 return EINVAL; 560 561 mm.prot = uap->prot; 562 mm.len = uap->len; 563 mm.flags = uap->flags & ~_MAP_NEW; 564 mm.fd = uap->fd; 565 mm.addr = uap->addr; 566 mm.pos = uap->pos; 567 568 return mmap(td, &mm); 569 } 570 571 int 572 svr4_sys_mmap64(td, uap) 573 struct thread *td; 574 struct svr4_sys_mmap64_args *uap; 575 { 576 struct mmap_args mm; 577 void *rp; 578 579 #define _MAP_NEW 0x80000000 580 /* 581 * Verify the arguments. 582 */ 583 if (uap->prot & ~(PROT_READ | PROT_WRITE | PROT_EXEC)) 584 return EINVAL; /* XXX still needed? */ 585 586 if (uap->len == 0) 587 return EINVAL; 588 589 mm.prot = uap->prot; 590 mm.len = uap->len; 591 mm.flags = uap->flags & ~_MAP_NEW; 592 mm.fd = uap->fd; 593 mm.addr = uap->addr; 594 mm.pos = uap->pos; 595 596 rp = (void *) round_page((vm_offset_t)(td->td_proc->p_vmspace->vm_daddr + maxdsiz)); 597 if ((mm.flags & MAP_FIXED) == 0 && 598 mm.addr != 0 && (void *)mm.addr < rp) 599 mm.addr = rp; 600 601 return mmap(td, &mm); 602 } 603 604 605 int 606 svr4_sys_fchroot(td, uap) 607 struct thread *td; 608 struct svr4_sys_fchroot_args *uap; 609 { 610 struct filedesc *fdp = td->td_proc->p_fd; 611 struct vnode *vp; 612 struct file *fp; 613 int error, vfslocked; 614 615 if ((error = priv_check(td, PRIV_VFS_FCHROOT)) != 0) 616 return error; 617 if ((error = getvnode(fdp, uap->fd, &fp)) != 0) 618 return error; 619 vp = fp->f_vnode; 620 VREF(vp); 621 fdrop(fp, td); 622 vfslocked = VFS_LOCK_GIANT(vp->v_mount); 623 vn_lock(vp, LK_EXCLUSIVE | LK_RETRY, td); 624 error = change_dir(vp, td); 625 if (error) 626 goto fail; 627 #ifdef MAC 628 error = mac_check_vnode_chroot(td->td_ucred, vp); 629 if (error) 630 goto fail; 631 #endif 632 VOP_UNLOCK(vp, 0, td); 633 error = change_root(vp, td); 634 vrele(vp); 635 VFS_UNLOCK_GIANT(vfslocked); 636 return (error); 637 fail: 638 vput(vp); 639 VFS_UNLOCK_GIANT(vfslocked); 640 return (error); 641 } 642 643 644 static int 645 svr4_mknod(td, retval, path, mode, dev) 646 struct thread *td; 647 register_t *retval; 648 char *path; 649 svr4_mode_t mode; 650 svr4_dev_t dev; 651 { 652 char *newpath; 653 int error; 654 655 CHECKALTEXIST(td, path, &newpath); 656 657 if (S_ISFIFO(mode)) 658 error = kern_mkfifo(td, newpath, UIO_SYSSPACE, mode); 659 else 660 error = kern_mknod(td, newpath, UIO_SYSSPACE, mode, dev); 661 free(newpath, M_TEMP); 662 return (error); 663 } 664 665 666 int 667 svr4_sys_mknod(td, uap) 668 register struct thread *td; 669 struct svr4_sys_mknod_args *uap; 670 { 671 int *retval = td->td_retval; 672 return svr4_mknod(td, retval, 673 uap->path, uap->mode, 674 (svr4_dev_t)svr4_to_bsd_odev_t(uap->dev)); 675 } 676 677 678 int 679 svr4_sys_xmknod(td, uap) 680 struct thread *td; 681 struct svr4_sys_xmknod_args *uap; 682 { 683 int *retval = td->td_retval; 684 return svr4_mknod(td, retval, 685 uap->path, uap->mode, 686 (svr4_dev_t)svr4_to_bsd_dev_t(uap->dev)); 687 } 688 689 690 int 691 svr4_sys_vhangup(td, uap) 692 struct thread *td; 693 struct svr4_sys_vhangup_args *uap; 694 { 695 return 0; 696 } 697 698 699 int 700 svr4_sys_sysconfig(td, uap) 701 struct thread *td; 702 struct svr4_sys_sysconfig_args *uap; 703 { 704 int *retval; 705 706 retval = &(td->td_retval[0]); 707 708 switch (uap->name) { 709 case SVR4_CONFIG_NGROUPS: 710 *retval = NGROUPS_MAX; 711 break; 712 case SVR4_CONFIG_CHILD_MAX: 713 *retval = maxproc; 714 break; 715 case SVR4_CONFIG_OPEN_FILES: 716 *retval = maxfiles; 717 break; 718 case SVR4_CONFIG_POSIX_VER: 719 *retval = 198808; 720 break; 721 case SVR4_CONFIG_PAGESIZE: 722 *retval = PAGE_SIZE; 723 break; 724 case SVR4_CONFIG_CLK_TCK: 725 *retval = 60; /* should this be `hz', ie. 100? */ 726 break; 727 case SVR4_CONFIG_XOPEN_VER: 728 *retval = 2; /* XXX: What should that be? */ 729 break; 730 case SVR4_CONFIG_PROF_TCK: 731 *retval = 60; /* XXX: What should that be? */ 732 break; 733 case SVR4_CONFIG_NPROC_CONF: 734 *retval = 1; /* Only one processor for now */ 735 break; 736 case SVR4_CONFIG_NPROC_ONLN: 737 *retval = 1; /* And it better be online */ 738 break; 739 case SVR4_CONFIG_AIO_LISTIO_MAX: 740 case SVR4_CONFIG_AIO_MAX: 741 case SVR4_CONFIG_AIO_PRIO_DELTA_MAX: 742 *retval = 0; /* No aio support */ 743 break; 744 case SVR4_CONFIG_DELAYTIMER_MAX: 745 *retval = 0; /* No delaytimer support */ 746 break; 747 case SVR4_CONFIG_MQ_OPEN_MAX: 748 *retval = msginfo.msgmni; 749 break; 750 case SVR4_CONFIG_MQ_PRIO_MAX: 751 *retval = 0; /* XXX: Don't know */ 752 break; 753 case SVR4_CONFIG_RTSIG_MAX: 754 *retval = 0; 755 break; 756 case SVR4_CONFIG_SEM_NSEMS_MAX: 757 *retval = seminfo.semmni; 758 break; 759 case SVR4_CONFIG_SEM_VALUE_MAX: 760 *retval = seminfo.semvmx; 761 break; 762 case SVR4_CONFIG_SIGQUEUE_MAX: 763 *retval = 0; /* XXX: Don't know */ 764 break; 765 case SVR4_CONFIG_SIGRT_MIN: 766 case SVR4_CONFIG_SIGRT_MAX: 767 *retval = 0; /* No real time signals */ 768 break; 769 case SVR4_CONFIG_TIMER_MAX: 770 *retval = 3; /* XXX: real, virtual, profiling */ 771 break; 772 #if defined(NOTYET) 773 case SVR4_CONFIG_PHYS_PAGES: 774 #if defined(UVM) 775 *retval = uvmexp.free; /* XXX: free instead of total */ 776 #else 777 *retval = cnt.v_free_count; /* XXX: free instead of total */ 778 #endif 779 break; 780 case SVR4_CONFIG_AVPHYS_PAGES: 781 #if defined(UVM) 782 *retval = uvmexp.active; /* XXX: active instead of avg */ 783 #else 784 *retval = cnt.v_active_count; /* XXX: active instead of avg */ 785 #endif 786 break; 787 #endif /* NOTYET */ 788 case SVR4_CONFIG_COHERENCY: 789 *retval = 0; /* XXX */ 790 break; 791 case SVR4_CONFIG_SPLIT_CACHE: 792 *retval = 0; /* XXX */ 793 break; 794 case SVR4_CONFIG_ICACHESZ: 795 *retval = 256; /* XXX */ 796 break; 797 case SVR4_CONFIG_DCACHESZ: 798 *retval = 256; /* XXX */ 799 break; 800 case SVR4_CONFIG_ICACHELINESZ: 801 *retval = 64; /* XXX */ 802 break; 803 case SVR4_CONFIG_DCACHELINESZ: 804 *retval = 64; /* XXX */ 805 break; 806 case SVR4_CONFIG_ICACHEBLKSZ: 807 *retval = 64; /* XXX */ 808 break; 809 case SVR4_CONFIG_DCACHEBLKSZ: 810 *retval = 64; /* XXX */ 811 break; 812 case SVR4_CONFIG_DCACHETBLKSZ: 813 *retval = 64; /* XXX */ 814 break; 815 case SVR4_CONFIG_ICACHE_ASSOC: 816 *retval = 1; /* XXX */ 817 break; 818 case SVR4_CONFIG_DCACHE_ASSOC: 819 *retval = 1; /* XXX */ 820 break; 821 case SVR4_CONFIG_MAXPID: 822 *retval = PID_MAX; 823 break; 824 case SVR4_CONFIG_STACK_PROT: 825 *retval = PROT_READ|PROT_WRITE|PROT_EXEC; 826 break; 827 default: 828 return EINVAL; 829 } 830 return 0; 831 } 832 833 /* ARGSUSED */ 834 int 835 svr4_sys_break(td, uap) 836 struct thread *td; 837 struct svr4_sys_break_args *uap; 838 { 839 struct obreak_args ap; 840 841 ap.nsize = uap->nsize; 842 return (obreak(td, &ap)); 843 } 844 845 static __inline clock_t 846 timeval_to_clock_t(tv) 847 struct timeval *tv; 848 { 849 return tv->tv_sec * hz + tv->tv_usec / (1000000 / hz); 850 } 851 852 853 int 854 svr4_sys_times(td, uap) 855 struct thread *td; 856 struct svr4_sys_times_args *uap; 857 { 858 struct timeval tv, utime, stime, cutime, cstime; 859 struct tms tms; 860 struct proc *p; 861 int error; 862 863 p = td->td_proc; 864 PROC_LOCK(p); 865 PROC_SLOCK(p); 866 calcru(p, &utime, &stime); 867 PROC_SUNLOCK(p); 868 calccru(p, &cutime, &cstime); 869 PROC_UNLOCK(p); 870 871 tms.tms_utime = timeval_to_clock_t(&utime); 872 tms.tms_stime = timeval_to_clock_t(&stime); 873 874 tms.tms_cutime = timeval_to_clock_t(&cutime); 875 tms.tms_cstime = timeval_to_clock_t(&cstime); 876 877 error = copyout(&tms, uap->tp, sizeof(tms)); 878 if (error) 879 return (error); 880 881 microtime(&tv); 882 td->td_retval[0] = (int)timeval_to_clock_t(&tv); 883 return (0); 884 } 885 886 887 int 888 svr4_sys_ulimit(td, uap) 889 struct thread *td; 890 struct svr4_sys_ulimit_args *uap; 891 { 892 int *retval = td->td_retval; 893 int error; 894 895 switch (uap->cmd) { 896 case SVR4_GFILLIM: 897 PROC_LOCK(td->td_proc); 898 *retval = lim_cur(td->td_proc, RLIMIT_FSIZE) / 512; 899 PROC_UNLOCK(td->td_proc); 900 if (*retval == -1) 901 *retval = 0x7fffffff; 902 return 0; 903 904 case SVR4_SFILLIM: 905 { 906 struct rlimit krl; 907 908 krl.rlim_cur = uap->newlimit * 512; 909 PROC_LOCK(td->td_proc); 910 krl.rlim_max = lim_max(td->td_proc, RLIMIT_FSIZE); 911 PROC_UNLOCK(td->td_proc); 912 913 error = kern_setrlimit(td, RLIMIT_FSIZE, &krl); 914 if (error) 915 return error; 916 917 PROC_LOCK(td->td_proc); 918 *retval = lim_cur(td->td_proc, RLIMIT_FSIZE); 919 PROC_UNLOCK(td->td_proc); 920 if (*retval == -1) 921 *retval = 0x7fffffff; 922 return 0; 923 } 924 925 case SVR4_GMEMLIM: 926 { 927 struct vmspace *vm = td->td_proc->p_vmspace; 928 register_t r; 929 930 PROC_LOCK(td->td_proc); 931 r = lim_cur(td->td_proc, RLIMIT_DATA); 932 PROC_UNLOCK(td->td_proc); 933 934 if (r == -1) 935 r = 0x7fffffff; 936 mtx_lock(&Giant); /* XXX */ 937 r += (long) vm->vm_daddr; 938 mtx_unlock(&Giant); 939 if (r < 0) 940 r = 0x7fffffff; 941 *retval = r; 942 return 0; 943 } 944 945 case SVR4_GDESLIM: 946 PROC_LOCK(td->td_proc); 947 *retval = lim_cur(td->td_proc, RLIMIT_NOFILE); 948 PROC_UNLOCK(td->td_proc); 949 if (*retval == -1) 950 *retval = 0x7fffffff; 951 return 0; 952 953 default: 954 return EINVAL; 955 } 956 } 957 958 static struct proc * 959 svr4_pfind(pid) 960 pid_t pid; 961 { 962 struct proc *p; 963 964 /* look in the live processes */ 965 if ((p = pfind(pid)) == NULL) 966 /* look in the zombies */ 967 p = zpfind(pid); 968 969 return p; 970 } 971 972 973 int 974 svr4_sys_pgrpsys(td, uap) 975 struct thread *td; 976 struct svr4_sys_pgrpsys_args *uap; 977 { 978 int *retval = td->td_retval; 979 struct proc *p = td->td_proc; 980 981 switch (uap->cmd) { 982 case 1: /* setpgrp() */ 983 /* 984 * SVR4 setpgrp() (which takes no arguments) has the 985 * semantics that the session ID is also created anew, so 986 * in almost every sense, setpgrp() is identical to 987 * setsid() for SVR4. (Under BSD, the difference is that 988 * a setpgid(0,0) will not create a new session.) 989 */ 990 setsid(td, NULL); 991 /*FALLTHROUGH*/ 992 993 case 0: /* getpgrp() */ 994 PROC_LOCK(p); 995 *retval = p->p_pgrp->pg_id; 996 PROC_UNLOCK(p); 997 return 0; 998 999 case 2: /* getsid(pid) */ 1000 if (uap->pid == 0) 1001 PROC_LOCK(p); 1002 else if ((p = svr4_pfind(uap->pid)) == NULL) 1003 return ESRCH; 1004 /* 1005 * This has already been initialized to the pid of 1006 * the session leader. 1007 */ 1008 *retval = (register_t) p->p_session->s_sid; 1009 PROC_UNLOCK(p); 1010 return 0; 1011 1012 case 3: /* setsid() */ 1013 return setsid(td, NULL); 1014 1015 case 4: /* getpgid(pid) */ 1016 1017 if (uap->pid == 0) 1018 PROC_LOCK(p); 1019 else if ((p = svr4_pfind(uap->pid)) == NULL) 1020 return ESRCH; 1021 1022 *retval = (int) p->p_pgrp->pg_id; 1023 PROC_UNLOCK(p); 1024 return 0; 1025 1026 case 5: /* setpgid(pid, pgid); */ 1027 { 1028 struct setpgid_args sa; 1029 1030 sa.pid = uap->pid; 1031 sa.pgid = uap->pgid; 1032 return setpgid(td, &sa); 1033 } 1034 1035 default: 1036 return EINVAL; 1037 } 1038 } 1039 1040 struct svr4_hrtcntl_args { 1041 int cmd; 1042 int fun; 1043 int clk; 1044 svr4_hrt_interval_t * iv; 1045 svr4_hrt_time_t * ti; 1046 }; 1047 1048 1049 static int 1050 svr4_hrtcntl(td, uap, retval) 1051 struct thread *td; 1052 struct svr4_hrtcntl_args *uap; 1053 register_t *retval; 1054 { 1055 switch (uap->fun) { 1056 case SVR4_HRT_CNTL_RES: 1057 DPRINTF(("htrcntl(RES)\n")); 1058 *retval = SVR4_HRT_USEC; 1059 return 0; 1060 1061 case SVR4_HRT_CNTL_TOFD: 1062 DPRINTF(("htrcntl(TOFD)\n")); 1063 { 1064 struct timeval tv; 1065 svr4_hrt_time_t t; 1066 if (uap->clk != SVR4_HRT_CLK_STD) { 1067 DPRINTF(("clk == %d\n", uap->clk)); 1068 return EINVAL; 1069 } 1070 if (uap->ti == NULL) { 1071 DPRINTF(("ti NULL\n")); 1072 return EINVAL; 1073 } 1074 microtime(&tv); 1075 t.h_sec = tv.tv_sec; 1076 t.h_rem = tv.tv_usec; 1077 t.h_res = SVR4_HRT_USEC; 1078 return copyout(&t, uap->ti, sizeof(t)); 1079 } 1080 1081 case SVR4_HRT_CNTL_START: 1082 DPRINTF(("htrcntl(START)\n")); 1083 return ENOSYS; 1084 1085 case SVR4_HRT_CNTL_GET: 1086 DPRINTF(("htrcntl(GET)\n")); 1087 return ENOSYS; 1088 default: 1089 DPRINTF(("Bad htrcntl command %d\n", uap->fun)); 1090 return ENOSYS; 1091 } 1092 } 1093 1094 1095 int 1096 svr4_sys_hrtsys(td, uap) 1097 struct thread *td; 1098 struct svr4_sys_hrtsys_args *uap; 1099 { 1100 int *retval = td->td_retval; 1101 1102 switch (uap->cmd) { 1103 case SVR4_HRT_CNTL: 1104 return svr4_hrtcntl(td, (struct svr4_hrtcntl_args *) uap, 1105 retval); 1106 1107 case SVR4_HRT_ALRM: 1108 DPRINTF(("hrtalarm\n")); 1109 return ENOSYS; 1110 1111 case SVR4_HRT_SLP: 1112 DPRINTF(("hrtsleep\n")); 1113 return ENOSYS; 1114 1115 case SVR4_HRT_CAN: 1116 DPRINTF(("hrtcancel\n")); 1117 return ENOSYS; 1118 1119 default: 1120 DPRINTF(("Bad hrtsys command %d\n", uap->cmd)); 1121 return EINVAL; 1122 } 1123 } 1124 1125 1126 static int 1127 svr4_setinfo(pid, ru, st, s) 1128 pid_t pid; 1129 struct rusage *ru; 1130 int st; 1131 svr4_siginfo_t *s; 1132 { 1133 svr4_siginfo_t i; 1134 int sig; 1135 1136 memset(&i, 0, sizeof(i)); 1137 1138 i.svr4_si_signo = SVR4_SIGCHLD; 1139 i.svr4_si_errno = 0; /* XXX? */ 1140 1141 i.svr4_si_pid = pid; 1142 if (ru) { 1143 i.svr4_si_stime = ru->ru_stime.tv_sec; 1144 i.svr4_si_utime = ru->ru_utime.tv_sec; 1145 } 1146 1147 if (WIFEXITED(st)) { 1148 i.svr4_si_status = WEXITSTATUS(st); 1149 i.svr4_si_code = SVR4_CLD_EXITED; 1150 } else if (WIFSTOPPED(st)) { 1151 sig = WSTOPSIG(st); 1152 if (sig >= 0 && sig < NSIG) 1153 i.svr4_si_status = SVR4_BSD2SVR4_SIG(sig); 1154 1155 if (i.svr4_si_status == SVR4_SIGCONT) 1156 i.svr4_si_code = SVR4_CLD_CONTINUED; 1157 else 1158 i.svr4_si_code = SVR4_CLD_STOPPED; 1159 } else { 1160 sig = WTERMSIG(st); 1161 if (sig >= 0 && sig < NSIG) 1162 i.svr4_si_status = SVR4_BSD2SVR4_SIG(sig); 1163 1164 if (WCOREDUMP(st)) 1165 i.svr4_si_code = SVR4_CLD_DUMPED; 1166 else 1167 i.svr4_si_code = SVR4_CLD_KILLED; 1168 } 1169 1170 DPRINTF(("siginfo [pid %ld signo %d code %d errno %d status %d]\n", 1171 i.svr4_si_pid, i.svr4_si_signo, i.svr4_si_code, i.svr4_si_errno, 1172 i.svr4_si_status)); 1173 1174 return copyout(&i, s, sizeof(i)); 1175 } 1176 1177 1178 int 1179 svr4_sys_waitsys(td, uap) 1180 struct thread *td; 1181 struct svr4_sys_waitsys_args *uap; 1182 { 1183 struct rusage ru; 1184 pid_t pid; 1185 int nfound, status; 1186 int error, *retval = td->td_retval; 1187 struct proc *p, *q; 1188 1189 DPRINTF(("waitsys(%d, %d, %p, %x)\n", 1190 uap->grp, uap->id, 1191 uap->info, uap->options)); 1192 1193 q = td->td_proc; 1194 switch (uap->grp) { 1195 case SVR4_P_PID: 1196 pid = uap->id; 1197 break; 1198 1199 case SVR4_P_PGID: 1200 PROC_LOCK(q); 1201 pid = -q->p_pgid; 1202 PROC_UNLOCK(q); 1203 break; 1204 1205 case SVR4_P_ALL: 1206 pid = WAIT_ANY; 1207 break; 1208 1209 default: 1210 return EINVAL; 1211 } 1212 1213 /* Hand off the easy cases to kern_wait(). */ 1214 if (!(uap->options & (SVR4_WNOWAIT)) && 1215 (uap->options & (SVR4_WEXITED | SVR4_WTRAPPED))) { 1216 int options; 1217 1218 options = 0; 1219 if (uap->options & SVR4_WSTOPPED) 1220 options |= WUNTRACED; 1221 if (uap->options & SVR4_WCONTINUED) 1222 options |= WCONTINUED; 1223 if (uap->options & SVR4_WNOHANG) 1224 options |= WNOHANG; 1225 1226 error = kern_wait(td, pid, &status, options, &ru); 1227 if (error) 1228 return (error); 1229 if (uap->options & SVR4_WNOHANG && *retval == 0) 1230 error = svr4_setinfo(*retval, NULL, 0, uap->info); 1231 else 1232 error = svr4_setinfo(*retval, &ru, status, uap->info); 1233 *retval = 0; 1234 return (error); 1235 } 1236 1237 /* 1238 * Ok, handle the weird cases. Either WNOWAIT is set (meaning we 1239 * just want to see if there is a process to harvest, we dont' 1240 * want to actually harvest it), or WEXIT and WTRAPPED are clear 1241 * meaning we want to ignore zombies. Either way, we don't have 1242 * to handle harvesting zombies here. We do have to duplicate the 1243 * other portions of kern_wait() though, especially for the 1244 * WCONTINUED and WSTOPPED. 1245 */ 1246 loop: 1247 nfound = 0; 1248 sx_slock(&proctree_lock); 1249 LIST_FOREACH(p, &q->p_children, p_sibling) { 1250 PROC_LOCK(p); 1251 if (pid != WAIT_ANY && 1252 p->p_pid != pid && p->p_pgid != -pid) { 1253 PROC_UNLOCK(p); 1254 DPRINTF(("pid %d pgid %d != %d\n", p->p_pid, 1255 p->p_pgid, pid)); 1256 continue; 1257 } 1258 if (p_canwait(td, p)) { 1259 PROC_UNLOCK(p); 1260 continue; 1261 } 1262 1263 nfound++; 1264 1265 PROC_SLOCK(p); 1266 /* 1267 * See if we have a zombie. If so, WNOWAIT should be set, 1268 * as otherwise we should have called kern_wait() up above. 1269 */ 1270 if ((p->p_state == PRS_ZOMBIE) && 1271 ((uap->options & (SVR4_WEXITED|SVR4_WTRAPPED)))) { 1272 PROC_SUNLOCK(p); 1273 KASSERT(uap->options & SVR4_WNOWAIT, 1274 ("WNOWAIT is clear")); 1275 1276 /* Found a zombie, so cache info in local variables. */ 1277 pid = p->p_pid; 1278 status = p->p_xstat; 1279 ru = p->p_ru; 1280 PROC_SLOCK(p); 1281 calcru(p, &ru.ru_utime, &ru.ru_stime); 1282 PROC_SUNLOCK(p); 1283 PROC_UNLOCK(p); 1284 sx_sunlock(&proctree_lock); 1285 1286 /* Copy the info out to userland. */ 1287 *retval = 0; 1288 DPRINTF(("found %d\n", pid)); 1289 return (svr4_setinfo(pid, &ru, status, uap->info)); 1290 } 1291 1292 /* 1293 * See if we have a stopped or continued process. 1294 * XXX: This duplicates the same code in kern_wait(). 1295 */ 1296 if ((p->p_flag & P_STOPPED_SIG) && 1297 (p->p_suspcount == p->p_numthreads) && 1298 (p->p_flag & P_WAITED) == 0 && 1299 (p->p_flag & P_TRACED || uap->options & SVR4_WSTOPPED)) { 1300 PROC_SUNLOCK(p); 1301 if (((uap->options & SVR4_WNOWAIT)) == 0) 1302 p->p_flag |= P_WAITED; 1303 sx_sunlock(&proctree_lock); 1304 pid = p->p_pid; 1305 status = W_STOPCODE(p->p_xstat); 1306 ru = p->p_ru; 1307 PROC_SLOCK(p); 1308 calcru(p, &ru.ru_utime, &ru.ru_stime); 1309 PROC_SUNLOCK(p); 1310 PROC_UNLOCK(p); 1311 1312 if (((uap->options & SVR4_WNOWAIT)) == 0) { 1313 PROC_LOCK(q); 1314 sigqueue_take(p->p_ksi); 1315 PROC_UNLOCK(q); 1316 } 1317 1318 *retval = 0; 1319 DPRINTF(("jobcontrol %d\n", pid)); 1320 return (svr4_setinfo(pid, &ru, status, uap->info)); 1321 } 1322 PROC_SUNLOCK(p); 1323 if (uap->options & SVR4_WCONTINUED && 1324 (p->p_flag & P_CONTINUED)) { 1325 sx_sunlock(&proctree_lock); 1326 if (((uap->options & SVR4_WNOWAIT)) == 0) 1327 p->p_flag &= ~P_CONTINUED; 1328 pid = p->p_pid; 1329 ru = p->p_ru; 1330 status = SIGCONT; 1331 PROC_SLOCK(p); 1332 calcru(p, &ru.ru_utime, &ru.ru_stime); 1333 PROC_SUNLOCK(p); 1334 PROC_UNLOCK(p); 1335 1336 if (((uap->options & SVR4_WNOWAIT)) == 0) { 1337 PROC_LOCK(q); 1338 sigqueue_take(p->p_ksi); 1339 PROC_UNLOCK(q); 1340 } 1341 1342 *retval = 0; 1343 DPRINTF(("jobcontrol %d\n", pid)); 1344 return (svr4_setinfo(pid, &ru, status, uap->info)); 1345 } 1346 PROC_UNLOCK(p); 1347 } 1348 1349 if (nfound == 0) { 1350 sx_sunlock(&proctree_lock); 1351 return (ECHILD); 1352 } 1353 1354 if (uap->options & SVR4_WNOHANG) { 1355 sx_sunlock(&proctree_lock); 1356 *retval = 0; 1357 return (svr4_setinfo(0, NULL, 0, uap->info)); 1358 } 1359 1360 PROC_LOCK(q); 1361 sx_sunlock(&proctree_lock); 1362 if (q->p_flag & P_STATCHILD) { 1363 q->p_flag &= ~P_STATCHILD; 1364 error = 0; 1365 } else 1366 error = msleep(q, &q->p_mtx, PWAIT | PCATCH, "svr4_wait", 0); 1367 PROC_UNLOCK(q); 1368 if (error) 1369 return error; 1370 goto loop; 1371 } 1372 1373 1374 static void 1375 bsd_statfs_to_svr4_statvfs(bfs, sfs) 1376 const struct statfs *bfs; 1377 struct svr4_statvfs *sfs; 1378 { 1379 sfs->f_bsize = bfs->f_iosize; /* XXX */ 1380 sfs->f_frsize = bfs->f_bsize; 1381 sfs->f_blocks = bfs->f_blocks; 1382 sfs->f_bfree = bfs->f_bfree; 1383 sfs->f_bavail = bfs->f_bavail; 1384 sfs->f_files = bfs->f_files; 1385 sfs->f_ffree = bfs->f_ffree; 1386 sfs->f_favail = bfs->f_ffree; 1387 sfs->f_fsid = bfs->f_fsid.val[0]; 1388 memcpy(sfs->f_basetype, bfs->f_fstypename, sizeof(sfs->f_basetype)); 1389 sfs->f_flag = 0; 1390 if (bfs->f_flags & MNT_RDONLY) 1391 sfs->f_flag |= SVR4_ST_RDONLY; 1392 if (bfs->f_flags & MNT_NOSUID) 1393 sfs->f_flag |= SVR4_ST_NOSUID; 1394 sfs->f_namemax = MAXNAMLEN; 1395 memcpy(sfs->f_fstr, bfs->f_fstypename, sizeof(sfs->f_fstr)); /* XXX */ 1396 memset(sfs->f_filler, 0, sizeof(sfs->f_filler)); 1397 } 1398 1399 1400 static void 1401 bsd_statfs_to_svr4_statvfs64(bfs, sfs) 1402 const struct statfs *bfs; 1403 struct svr4_statvfs64 *sfs; 1404 { 1405 sfs->f_bsize = bfs->f_iosize; /* XXX */ 1406 sfs->f_frsize = bfs->f_bsize; 1407 sfs->f_blocks = bfs->f_blocks; 1408 sfs->f_bfree = bfs->f_bfree; 1409 sfs->f_bavail = bfs->f_bavail; 1410 sfs->f_files = bfs->f_files; 1411 sfs->f_ffree = bfs->f_ffree; 1412 sfs->f_favail = bfs->f_ffree; 1413 sfs->f_fsid = bfs->f_fsid.val[0]; 1414 memcpy(sfs->f_basetype, bfs->f_fstypename, sizeof(sfs->f_basetype)); 1415 sfs->f_flag = 0; 1416 if (bfs->f_flags & MNT_RDONLY) 1417 sfs->f_flag |= SVR4_ST_RDONLY; 1418 if (bfs->f_flags & MNT_NOSUID) 1419 sfs->f_flag |= SVR4_ST_NOSUID; 1420 sfs->f_namemax = MAXNAMLEN; 1421 memcpy(sfs->f_fstr, bfs->f_fstypename, sizeof(sfs->f_fstr)); /* XXX */ 1422 memset(sfs->f_filler, 0, sizeof(sfs->f_filler)); 1423 } 1424 1425 1426 int 1427 svr4_sys_statvfs(td, uap) 1428 struct thread *td; 1429 struct svr4_sys_statvfs_args *uap; 1430 { 1431 struct svr4_statvfs sfs; 1432 struct statfs bfs; 1433 char *path; 1434 int error; 1435 1436 CHECKALTEXIST(td, uap->path, &path); 1437 1438 error = kern_statfs(td, path, UIO_SYSSPACE, &bfs); 1439 free(path, M_TEMP); 1440 if (error) 1441 return (error); 1442 bsd_statfs_to_svr4_statvfs(&bfs, &sfs); 1443 return copyout(&sfs, uap->fs, sizeof(sfs)); 1444 } 1445 1446 1447 int 1448 svr4_sys_fstatvfs(td, uap) 1449 struct thread *td; 1450 struct svr4_sys_fstatvfs_args *uap; 1451 { 1452 struct svr4_statvfs sfs; 1453 struct statfs bfs; 1454 int error; 1455 1456 error = kern_fstatfs(td, uap->fd, &bfs); 1457 if (error) 1458 return (error); 1459 bsd_statfs_to_svr4_statvfs(&bfs, &sfs); 1460 return copyout(&sfs, uap->fs, sizeof(sfs)); 1461 } 1462 1463 1464 int 1465 svr4_sys_statvfs64(td, uap) 1466 struct thread *td; 1467 struct svr4_sys_statvfs64_args *uap; 1468 { 1469 struct svr4_statvfs64 sfs; 1470 struct statfs bfs; 1471 char *path; 1472 int error; 1473 1474 CHECKALTEXIST(td, uap->path, &path); 1475 1476 error = kern_statfs(td, path, UIO_SYSSPACE, &bfs); 1477 free(path, M_TEMP); 1478 if (error) 1479 return (error); 1480 bsd_statfs_to_svr4_statvfs64(&bfs, &sfs); 1481 return copyout(&sfs, uap->fs, sizeof(sfs)); 1482 } 1483 1484 1485 int 1486 svr4_sys_fstatvfs64(td, uap) 1487 struct thread *td; 1488 struct svr4_sys_fstatvfs64_args *uap; 1489 { 1490 struct svr4_statvfs64 sfs; 1491 struct statfs bfs; 1492 int error; 1493 1494 error = kern_fstatfs(td, uap->fd, &bfs); 1495 if (error) 1496 return (error); 1497 bsd_statfs_to_svr4_statvfs64(&bfs, &sfs); 1498 return copyout(&sfs, uap->fs, sizeof(sfs)); 1499 } 1500 1501 int 1502 svr4_sys_alarm(td, uap) 1503 struct thread *td; 1504 struct svr4_sys_alarm_args *uap; 1505 { 1506 struct itimerval itv, oitv; 1507 int error; 1508 1509 timevalclear(&itv.it_interval); 1510 itv.it_value.tv_sec = uap->sec; 1511 itv.it_value.tv_usec = 0; 1512 error = kern_setitimer(td, ITIMER_REAL, &itv, &oitv); 1513 if (error) 1514 return (error); 1515 if (oitv.it_value.tv_usec != 0) 1516 oitv.it_value.tv_sec++; 1517 td->td_retval[0] = oitv.it_value.tv_sec; 1518 return (0); 1519 } 1520 1521 int 1522 svr4_sys_gettimeofday(td, uap) 1523 struct thread *td; 1524 struct svr4_sys_gettimeofday_args *uap; 1525 { 1526 if (uap->tp) { 1527 struct timeval atv; 1528 1529 microtime(&atv); 1530 return copyout(&atv, uap->tp, sizeof (atv)); 1531 } 1532 1533 return 0; 1534 } 1535 1536 int 1537 svr4_sys_facl(td, uap) 1538 struct thread *td; 1539 struct svr4_sys_facl_args *uap; 1540 { 1541 int *retval; 1542 1543 retval = td->td_retval; 1544 *retval = 0; 1545 1546 switch (uap->cmd) { 1547 case SVR4_SYS_SETACL: 1548 /* We don't support acls on any filesystem */ 1549 return ENOSYS; 1550 1551 case SVR4_SYS_GETACL: 1552 return copyout(retval, &uap->num, 1553 sizeof(uap->num)); 1554 1555 case SVR4_SYS_GETACLCNT: 1556 return 0; 1557 1558 default: 1559 return EINVAL; 1560 } 1561 } 1562 1563 1564 int 1565 svr4_sys_acl(td, uap) 1566 struct thread *td; 1567 struct svr4_sys_acl_args *uap; 1568 { 1569 /* XXX: for now the same */ 1570 return svr4_sys_facl(td, (struct svr4_sys_facl_args *)uap); 1571 } 1572 1573 int 1574 svr4_sys_auditsys(td, uap) 1575 struct thread *td; 1576 struct svr4_sys_auditsys_args *uap; 1577 { 1578 /* 1579 * XXX: Big brother is *not* watching. 1580 */ 1581 return 0; 1582 } 1583 1584 int 1585 svr4_sys_memcntl(td, uap) 1586 struct thread *td; 1587 struct svr4_sys_memcntl_args *uap; 1588 { 1589 switch (uap->cmd) { 1590 case SVR4_MC_SYNC: 1591 { 1592 struct msync_args msa; 1593 1594 msa.addr = uap->addr; 1595 msa.len = uap->len; 1596 msa.flags = (int)uap->arg; 1597 1598 return msync(td, &msa); 1599 } 1600 case SVR4_MC_ADVISE: 1601 { 1602 struct madvise_args maa; 1603 1604 maa.addr = uap->addr; 1605 maa.len = uap->len; 1606 maa.behav = (int)uap->arg; 1607 1608 return madvise(td, &maa); 1609 } 1610 case SVR4_MC_LOCK: 1611 case SVR4_MC_UNLOCK: 1612 case SVR4_MC_LOCKAS: 1613 case SVR4_MC_UNLOCKAS: 1614 return EOPNOTSUPP; 1615 default: 1616 return ENOSYS; 1617 } 1618 } 1619 1620 1621 int 1622 svr4_sys_nice(td, uap) 1623 struct thread *td; 1624 struct svr4_sys_nice_args *uap; 1625 { 1626 struct setpriority_args ap; 1627 int error; 1628 1629 ap.which = PRIO_PROCESS; 1630 ap.who = 0; 1631 ap.prio = uap->prio; 1632 1633 if ((error = setpriority(td, &ap)) != 0) 1634 return error; 1635 1636 /* the cast is stupid, but the structures are the same */ 1637 if ((error = getpriority(td, (struct getpriority_args *)&ap)) != 0) 1638 return error; 1639 1640 return 0; 1641 } 1642 1643 int 1644 svr4_sys_resolvepath(td, uap) 1645 struct thread *td; 1646 struct svr4_sys_resolvepath_args *uap; 1647 { 1648 struct nameidata nd; 1649 int error, *retval = td->td_retval; 1650 unsigned int ncopy; 1651 int vfslocked; 1652 1653 NDINIT(&nd, LOOKUP, NOFOLLOW | SAVENAME | MPSAFE, UIO_USERSPACE, 1654 uap->path, td); 1655 1656 if ((error = namei(&nd)) != 0) 1657 return error; 1658 vfslocked = NDHASGIANT(&nd); 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 VFS_UNLOCK_GIANT(vfslocked); 1669 return error; 1670 }
Cache object: e3f4d61c36d2bb6b304f87ea98b4628e
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