svr4_misc.c revision 192994
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: head/sys/compat/svr4/svr4_misc.c 192994 2009-05-28 21:12:43Z 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 105static int svr4_mknod(struct thread *, register_t *, char *, 106 svr4_mode_t, svr4_dev_t); 107 108static __inline clock_t timeval_to_clock_t(struct timeval *); 109static int svr4_setinfo (pid_t , struct rusage *, int, svr4_siginfo_t *); 110 111struct svr4_hrtcntl_args; 112static int svr4_hrtcntl (struct thread *, struct svr4_hrtcntl_args *, 113 register_t *); 114static void bsd_statfs_to_svr4_statvfs(const struct statfs *, 115 struct svr4_statvfs *); 116static void bsd_statfs_to_svr4_statvfs64(const struct statfs *, 117 struct svr4_statvfs64 *); 118static struct proc *svr4_pfind(pid_t pid); 119 120/* BOGUS noop */ 121#if defined(BOGUS) 122int 123svr4_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 132int 133svr4_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 165int 166svr4_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 183int 184svr4_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 202int 203svr4_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 */ 229int 230svr4_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); 282again: 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_vnode_check_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 strlcpy(svr4_dirent.d_name, bdp->d_name, sizeof(svr4_dirent.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 396eof: 397 td->td_retval[0] = nbytes - resid; 398out: 399 VOP_UNLOCK(vp, 0); 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 409int 410svr4_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); 451 off = fp->f_offset; 452again: 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_vnode_check_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 strlcpy(idb.d_name, bdp->d_name, sizeof(idb.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 529eof: 530 *retval = uap->nbytes - resid; 531out: 532 VOP_UNLOCK(vp, 0); 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 542int 543svr4_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 571int 572svr4_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 605int 606svr4_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); 624 error = change_dir(vp, td); 625 if (error) 626 goto fail; 627#ifdef MAC 628 error = mac_vnode_check_chroot(td->td_ucred, vp); 629 if (error) 630 goto fail; 631#endif 632 VOP_UNLOCK(vp, 0); 633 error = change_root(vp, td); 634 vrele(vp); 635 VFS_UNLOCK_GIANT(vfslocked); 636 return (error); 637fail: 638 vput(vp); 639 VFS_UNLOCK_GIANT(vfslocked); 640 return (error); 641} 642 643 644static int 645svr4_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 666int 667svr4_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 678int 679svr4_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 690int 691svr4_sys_vhangup(td, uap) 692 struct thread *td; 693 struct svr4_sys_vhangup_args *uap; 694{ 695 return 0; 696} 697 698 699int 700svr4_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_UNUSED: 710 *retval = 0; 711 break; 712 case SVR4_CONFIG_NGROUPS: 713 *retval = NGROUPS_MAX; 714 break; 715 case SVR4_CONFIG_CHILD_MAX: 716 *retval = maxproc; 717 break; 718 case SVR4_CONFIG_OPEN_FILES: 719 *retval = maxfiles; 720 break; 721 case SVR4_CONFIG_POSIX_VER: 722 *retval = 198808; 723 break; 724 case SVR4_CONFIG_PAGESIZE: 725 *retval = PAGE_SIZE; 726 break; 727 case SVR4_CONFIG_CLK_TCK: 728 *retval = 60; /* should this be `hz', ie. 100? */ 729 break; 730 case SVR4_CONFIG_XOPEN_VER: 731 *retval = 2; /* XXX: What should that be? */ 732 break; 733 case SVR4_CONFIG_PROF_TCK: 734 *retval = 60; /* XXX: What should that be? */ 735 break; 736 case SVR4_CONFIG_NPROC_CONF: 737 *retval = 1; /* Only one processor for now */ 738 break; 739 case SVR4_CONFIG_NPROC_ONLN: 740 *retval = 1; /* And it better be online */ 741 break; 742 case SVR4_CONFIG_AIO_LISTIO_MAX: 743 case SVR4_CONFIG_AIO_MAX: 744 case SVR4_CONFIG_AIO_PRIO_DELTA_MAX: 745 *retval = 0; /* No aio support */ 746 break; 747 case SVR4_CONFIG_DELAYTIMER_MAX: 748 *retval = 0; /* No delaytimer support */ 749 break; 750 case SVR4_CONFIG_MQ_OPEN_MAX: 751 *retval = msginfo.msgmni; 752 break; 753 case SVR4_CONFIG_MQ_PRIO_MAX: 754 *retval = 0; /* XXX: Don't know */ 755 break; 756 case SVR4_CONFIG_RTSIG_MAX: 757 *retval = 0; 758 break; 759 case SVR4_CONFIG_SEM_NSEMS_MAX: 760 *retval = seminfo.semmni; 761 break; 762 case SVR4_CONFIG_SEM_VALUE_MAX: 763 *retval = seminfo.semvmx; 764 break; 765 case SVR4_CONFIG_SIGQUEUE_MAX: 766 *retval = 0; /* XXX: Don't know */ 767 break; 768 case SVR4_CONFIG_SIGRT_MIN: 769 case SVR4_CONFIG_SIGRT_MAX: 770 *retval = 0; /* No real time signals */ 771 break; 772 case SVR4_CONFIG_TIMER_MAX: 773 *retval = 3; /* XXX: real, virtual, profiling */ 774 break; 775#if defined(NOTYET) 776 case SVR4_CONFIG_PHYS_PAGES: 777#if defined(UVM) 778 *retval = uvmexp.free; /* XXX: free instead of total */ 779#else 780 *retval = cnt.v_free_count; /* XXX: free instead of total */ 781#endif 782 break; 783 case SVR4_CONFIG_AVPHYS_PAGES: 784#if defined(UVM) 785 *retval = uvmexp.active; /* XXX: active instead of avg */ 786#else 787 *retval = cnt.v_active_count; /* XXX: active instead of avg */ 788#endif 789 break; 790#endif /* NOTYET */ 791 792 default: 793 return EINVAL; 794 } 795 return 0; 796} 797 798/* ARGSUSED */ 799int 800svr4_sys_break(td, uap) 801 struct thread *td; 802 struct svr4_sys_break_args *uap; 803{ 804 struct obreak_args ap; 805 806 ap.nsize = uap->nsize; 807 return (obreak(td, &ap)); 808} 809 810static __inline clock_t 811timeval_to_clock_t(tv) 812 struct timeval *tv; 813{ 814 return tv->tv_sec * hz + tv->tv_usec / (1000000 / hz); 815} 816 817 818int 819svr4_sys_times(td, uap) 820 struct thread *td; 821 struct svr4_sys_times_args *uap; 822{ 823 struct timeval tv, utime, stime, cutime, cstime; 824 struct tms tms; 825 struct proc *p; 826 int error; 827 828 p = td->td_proc; 829 PROC_LOCK(p); 830 PROC_SLOCK(p); 831 calcru(p, &utime, &stime); 832 PROC_SUNLOCK(p); 833 calccru(p, &cutime, &cstime); 834 PROC_UNLOCK(p); 835 836 tms.tms_utime = timeval_to_clock_t(&utime); 837 tms.tms_stime = timeval_to_clock_t(&stime); 838 839 tms.tms_cutime = timeval_to_clock_t(&cutime); 840 tms.tms_cstime = timeval_to_clock_t(&cstime); 841 842 error = copyout(&tms, uap->tp, sizeof(tms)); 843 if (error) 844 return (error); 845 846 microtime(&tv); 847 td->td_retval[0] = (int)timeval_to_clock_t(&tv); 848 return (0); 849} 850 851 852int 853svr4_sys_ulimit(td, uap) 854 struct thread *td; 855 struct svr4_sys_ulimit_args *uap; 856{ 857 int *retval = td->td_retval; 858 int error; 859 860 switch (uap->cmd) { 861 case SVR4_GFILLIM: 862 PROC_LOCK(td->td_proc); 863 *retval = lim_cur(td->td_proc, RLIMIT_FSIZE) / 512; 864 PROC_UNLOCK(td->td_proc); 865 if (*retval == -1) 866 *retval = 0x7fffffff; 867 return 0; 868 869 case SVR4_SFILLIM: 870 { 871 struct rlimit krl; 872 873 krl.rlim_cur = uap->newlimit * 512; 874 PROC_LOCK(td->td_proc); 875 krl.rlim_max = lim_max(td->td_proc, RLIMIT_FSIZE); 876 PROC_UNLOCK(td->td_proc); 877 878 error = kern_setrlimit(td, RLIMIT_FSIZE, &krl); 879 if (error) 880 return error; 881 882 PROC_LOCK(td->td_proc); 883 *retval = lim_cur(td->td_proc, RLIMIT_FSIZE); 884 PROC_UNLOCK(td->td_proc); 885 if (*retval == -1) 886 *retval = 0x7fffffff; 887 return 0; 888 } 889 890 case SVR4_GMEMLIM: 891 { 892 struct vmspace *vm = td->td_proc->p_vmspace; 893 register_t r; 894 895 PROC_LOCK(td->td_proc); 896 r = lim_cur(td->td_proc, RLIMIT_DATA); 897 PROC_UNLOCK(td->td_proc); 898 899 if (r == -1) 900 r = 0x7fffffff; 901 r += (long) vm->vm_daddr; 902 if (r < 0) 903 r = 0x7fffffff; 904 *retval = r; 905 return 0; 906 } 907 908 case SVR4_GDESLIM: 909 PROC_LOCK(td->td_proc); 910 *retval = lim_cur(td->td_proc, RLIMIT_NOFILE); 911 PROC_UNLOCK(td->td_proc); 912 if (*retval == -1) 913 *retval = 0x7fffffff; 914 return 0; 915 916 default: 917 return EINVAL; 918 } 919} 920 921static struct proc * 922svr4_pfind(pid) 923 pid_t pid; 924{ 925 struct proc *p; 926 927 /* look in the live processes */ 928 if ((p = pfind(pid)) == NULL) 929 /* look in the zombies */ 930 p = zpfind(pid); 931 932 return p; 933} 934 935 936int 937svr4_sys_pgrpsys(td, uap) 938 struct thread *td; 939 struct svr4_sys_pgrpsys_args *uap; 940{ 941 int *retval = td->td_retval; 942 struct proc *p = td->td_proc; 943 944 switch (uap->cmd) { 945 case 1: /* setpgrp() */ 946 /* 947 * SVR4 setpgrp() (which takes no arguments) has the 948 * semantics that the session ID is also created anew, so 949 * in almost every sense, setpgrp() is identical to 950 * setsid() for SVR4. (Under BSD, the difference is that 951 * a setpgid(0,0) will not create a new session.) 952 */ 953 setsid(td, NULL); 954 /*FALLTHROUGH*/ 955 956 case 0: /* getpgrp() */ 957 PROC_LOCK(p); 958 *retval = p->p_pgrp->pg_id; 959 PROC_UNLOCK(p); 960 return 0; 961 962 case 2: /* getsid(pid) */ 963 if (uap->pid == 0) 964 PROC_LOCK(p); 965 else if ((p = svr4_pfind(uap->pid)) == NULL) 966 return ESRCH; 967 /* 968 * This has already been initialized to the pid of 969 * the session leader. 970 */ 971 *retval = (register_t) p->p_session->s_sid; 972 PROC_UNLOCK(p); 973 return 0; 974 975 case 3: /* setsid() */ 976 return setsid(td, NULL); 977 978 case 4: /* getpgid(pid) */ 979 980 if (uap->pid == 0) 981 PROC_LOCK(p); 982 else if ((p = svr4_pfind(uap->pid)) == NULL) 983 return ESRCH; 984 985 *retval = (int) p->p_pgrp->pg_id; 986 PROC_UNLOCK(p); 987 return 0; 988 989 case 5: /* setpgid(pid, pgid); */ 990 { 991 struct setpgid_args sa; 992 993 sa.pid = uap->pid; 994 sa.pgid = uap->pgid; 995 return setpgid(td, &sa); 996 } 997 998 default: 999 return EINVAL; 1000 } 1001} 1002 1003struct svr4_hrtcntl_args { 1004 int cmd; 1005 int fun; 1006 int clk; 1007 svr4_hrt_interval_t * iv; 1008 svr4_hrt_time_t * ti; 1009}; 1010 1011 1012static int 1013svr4_hrtcntl(td, uap, retval) 1014 struct thread *td; 1015 struct svr4_hrtcntl_args *uap; 1016 register_t *retval; 1017{ 1018 switch (uap->fun) { 1019 case SVR4_HRT_CNTL_RES: 1020 DPRINTF(("htrcntl(RES)\n")); 1021 *retval = SVR4_HRT_USEC; 1022 return 0; 1023 1024 case SVR4_HRT_CNTL_TOFD: 1025 DPRINTF(("htrcntl(TOFD)\n")); 1026 { 1027 struct timeval tv; 1028 svr4_hrt_time_t t; 1029 if (uap->clk != SVR4_HRT_CLK_STD) { 1030 DPRINTF(("clk == %d\n", uap->clk)); 1031 return EINVAL; 1032 } 1033 if (uap->ti == NULL) { 1034 DPRINTF(("ti NULL\n")); 1035 return EINVAL; 1036 } 1037 microtime(&tv); 1038 t.h_sec = tv.tv_sec; 1039 t.h_rem = tv.tv_usec; 1040 t.h_res = SVR4_HRT_USEC; 1041 return copyout(&t, uap->ti, sizeof(t)); 1042 } 1043 1044 case SVR4_HRT_CNTL_START: 1045 DPRINTF(("htrcntl(START)\n")); 1046 return ENOSYS; 1047 1048 case SVR4_HRT_CNTL_GET: 1049 DPRINTF(("htrcntl(GET)\n")); 1050 return ENOSYS; 1051 default: 1052 DPRINTF(("Bad htrcntl command %d\n", uap->fun)); 1053 return ENOSYS; 1054 } 1055} 1056 1057 1058int 1059svr4_sys_hrtsys(td, uap) 1060 struct thread *td; 1061 struct svr4_sys_hrtsys_args *uap; 1062{ 1063 int *retval = td->td_retval; 1064 1065 switch (uap->cmd) { 1066 case SVR4_HRT_CNTL: 1067 return svr4_hrtcntl(td, (struct svr4_hrtcntl_args *) uap, 1068 retval); 1069 1070 case SVR4_HRT_ALRM: 1071 DPRINTF(("hrtalarm\n")); 1072 return ENOSYS; 1073 1074 case SVR4_HRT_SLP: 1075 DPRINTF(("hrtsleep\n")); 1076 return ENOSYS; 1077 1078 case SVR4_HRT_CAN: 1079 DPRINTF(("hrtcancel\n")); 1080 return ENOSYS; 1081 1082 default: 1083 DPRINTF(("Bad hrtsys command %d\n", uap->cmd)); 1084 return EINVAL; 1085 } 1086} 1087 1088 1089static int 1090svr4_setinfo(pid, ru, st, s) 1091 pid_t pid; 1092 struct rusage *ru; 1093 int st; 1094 svr4_siginfo_t *s; 1095{ 1096 svr4_siginfo_t i; 1097 int sig; 1098 1099 memset(&i, 0, sizeof(i)); 1100 1101 i.svr4_si_signo = SVR4_SIGCHLD; 1102 i.svr4_si_errno = 0; /* XXX? */ 1103 1104 i.svr4_si_pid = pid; 1105 if (ru) { 1106 i.svr4_si_stime = ru->ru_stime.tv_sec; 1107 i.svr4_si_utime = ru->ru_utime.tv_sec; 1108 } 1109 1110 if (WIFEXITED(st)) { 1111 i.svr4_si_status = WEXITSTATUS(st); 1112 i.svr4_si_code = SVR4_CLD_EXITED; 1113 } else if (WIFSTOPPED(st)) { 1114 sig = WSTOPSIG(st); 1115 if (sig >= 0 && sig < NSIG) 1116 i.svr4_si_status = SVR4_BSD2SVR4_SIG(sig); 1117 1118 if (i.svr4_si_status == SVR4_SIGCONT) 1119 i.svr4_si_code = SVR4_CLD_CONTINUED; 1120 else 1121 i.svr4_si_code = SVR4_CLD_STOPPED; 1122 } else { 1123 sig = WTERMSIG(st); 1124 if (sig >= 0 && sig < NSIG) 1125 i.svr4_si_status = SVR4_BSD2SVR4_SIG(sig); 1126 1127 if (WCOREDUMP(st)) 1128 i.svr4_si_code = SVR4_CLD_DUMPED; 1129 else 1130 i.svr4_si_code = SVR4_CLD_KILLED; 1131 } 1132 1133 DPRINTF(("siginfo [pid %ld signo %d code %d errno %d status %d]\n", 1134 i.svr4_si_pid, i.svr4_si_signo, i.svr4_si_code, i.svr4_si_errno, 1135 i.svr4_si_status)); 1136 1137 return copyout(&i, s, sizeof(i)); 1138} 1139 1140 1141int 1142svr4_sys_waitsys(td, uap) 1143 struct thread *td; 1144 struct svr4_sys_waitsys_args *uap; 1145{ 1146 struct rusage ru; 1147 pid_t pid; 1148 int nfound, status; 1149 int error, *retval = td->td_retval; 1150 struct proc *p, *q; 1151 1152 DPRINTF(("waitsys(%d, %d, %p, %x)\n", 1153 uap->grp, uap->id, 1154 uap->info, uap->options)); 1155 1156 q = td->td_proc; 1157 switch (uap->grp) { 1158 case SVR4_P_PID: 1159 pid = uap->id; 1160 break; 1161 1162 case SVR4_P_PGID: 1163 PROC_LOCK(q); 1164 pid = -q->p_pgid; 1165 PROC_UNLOCK(q); 1166 break; 1167 1168 case SVR4_P_ALL: 1169 pid = WAIT_ANY; 1170 break; 1171 1172 default: 1173 return EINVAL; 1174 } 1175 1176 /* Hand off the easy cases to kern_wait(). */ 1177 if (!(uap->options & (SVR4_WNOWAIT)) && 1178 (uap->options & (SVR4_WEXITED | SVR4_WTRAPPED))) { 1179 int options; 1180 1181 options = 0; 1182 if (uap->options & SVR4_WSTOPPED) 1183 options |= WUNTRACED; 1184 if (uap->options & SVR4_WCONTINUED) 1185 options |= WCONTINUED; 1186 if (uap->options & SVR4_WNOHANG) 1187 options |= WNOHANG; 1188 1189 error = kern_wait(td, pid, &status, options, &ru); 1190 if (error) 1191 return (error); 1192 if (uap->options & SVR4_WNOHANG && *retval == 0) 1193 error = svr4_setinfo(*retval, NULL, 0, uap->info); 1194 else 1195 error = svr4_setinfo(*retval, &ru, status, uap->info); 1196 *retval = 0; 1197 return (error); 1198 } 1199 1200 /* 1201 * Ok, handle the weird cases. Either WNOWAIT is set (meaning we 1202 * just want to see if there is a process to harvest, we don't 1203 * want to actually harvest it), or WEXIT and WTRAPPED are clear 1204 * meaning we want to ignore zombies. Either way, we don't have 1205 * to handle harvesting zombies here. We do have to duplicate the 1206 * other portions of kern_wait() though, especially for WCONTINUED 1207 * and WSTOPPED. 1208 */ 1209loop: 1210 nfound = 0; 1211 sx_slock(&proctree_lock); 1212 LIST_FOREACH(p, &q->p_children, p_sibling) { 1213 PROC_LOCK(p); 1214 if (pid != WAIT_ANY && 1215 p->p_pid != pid && p->p_pgid != -pid) { 1216 PROC_UNLOCK(p); 1217 DPRINTF(("pid %d pgid %d != %d\n", p->p_pid, 1218 p->p_pgid, pid)); 1219 continue; 1220 } 1221 if (p_canwait(td, p)) { 1222 PROC_UNLOCK(p); 1223 continue; 1224 } 1225 1226 nfound++; 1227 1228 PROC_SLOCK(p); 1229 /* 1230 * See if we have a zombie. If so, WNOWAIT should be set, 1231 * as otherwise we should have called kern_wait() up above. 1232 */ 1233 if ((p->p_state == PRS_ZOMBIE) && 1234 ((uap->options & (SVR4_WEXITED|SVR4_WTRAPPED)))) { 1235 PROC_SUNLOCK(p); 1236 KASSERT(uap->options & SVR4_WNOWAIT, 1237 ("WNOWAIT is clear")); 1238 1239 /* Found a zombie, so cache info in local variables. */ 1240 pid = p->p_pid; 1241 status = p->p_xstat; 1242 ru = p->p_ru; 1243 PROC_SLOCK(p); 1244 calcru(p, &ru.ru_utime, &ru.ru_stime); 1245 PROC_SUNLOCK(p); 1246 PROC_UNLOCK(p); 1247 sx_sunlock(&proctree_lock); 1248 1249 /* Copy the info out to userland. */ 1250 *retval = 0; 1251 DPRINTF(("found %d\n", pid)); 1252 return (svr4_setinfo(pid, &ru, status, uap->info)); 1253 } 1254 1255 /* 1256 * See if we have a stopped or continued process. 1257 * XXX: This duplicates the same code in kern_wait(). 1258 */ 1259 if ((p->p_flag & P_STOPPED_SIG) && 1260 (p->p_suspcount == p->p_numthreads) && 1261 (p->p_flag & P_WAITED) == 0 && 1262 (p->p_flag & P_TRACED || uap->options & SVR4_WSTOPPED)) { 1263 PROC_SUNLOCK(p); 1264 if (((uap->options & SVR4_WNOWAIT)) == 0) 1265 p->p_flag |= P_WAITED; 1266 sx_sunlock(&proctree_lock); 1267 pid = p->p_pid; 1268 status = W_STOPCODE(p->p_xstat); 1269 ru = p->p_ru; 1270 PROC_SLOCK(p); 1271 calcru(p, &ru.ru_utime, &ru.ru_stime); 1272 PROC_SUNLOCK(p); 1273 PROC_UNLOCK(p); 1274 1275 if (((uap->options & SVR4_WNOWAIT)) == 0) { 1276 PROC_LOCK(q); 1277 sigqueue_take(p->p_ksi); 1278 PROC_UNLOCK(q); 1279 } 1280 1281 *retval = 0; 1282 DPRINTF(("jobcontrol %d\n", pid)); 1283 return (svr4_setinfo(pid, &ru, status, uap->info)); 1284 } 1285 PROC_SUNLOCK(p); 1286 if (uap->options & SVR4_WCONTINUED && 1287 (p->p_flag & P_CONTINUED)) { 1288 sx_sunlock(&proctree_lock); 1289 if (((uap->options & SVR4_WNOWAIT)) == 0) 1290 p->p_flag &= ~P_CONTINUED; 1291 pid = p->p_pid; 1292 ru = p->p_ru; 1293 status = SIGCONT; 1294 PROC_SLOCK(p); 1295 calcru(p, &ru.ru_utime, &ru.ru_stime); 1296 PROC_SUNLOCK(p); 1297 PROC_UNLOCK(p); 1298 1299 if (((uap->options & SVR4_WNOWAIT)) == 0) { 1300 PROC_LOCK(q); 1301 sigqueue_take(p->p_ksi); 1302 PROC_UNLOCK(q); 1303 } 1304 1305 *retval = 0; 1306 DPRINTF(("jobcontrol %d\n", pid)); 1307 return (svr4_setinfo(pid, &ru, status, uap->info)); 1308 } 1309 PROC_UNLOCK(p); 1310 } 1311 1312 if (nfound == 0) { 1313 sx_sunlock(&proctree_lock); 1314 return (ECHILD); 1315 } 1316 1317 if (uap->options & SVR4_WNOHANG) { 1318 sx_sunlock(&proctree_lock); 1319 *retval = 0; 1320 return (svr4_setinfo(0, NULL, 0, uap->info)); 1321 } 1322 1323 PROC_LOCK(q); 1324 sx_sunlock(&proctree_lock); 1325 if (q->p_flag & P_STATCHILD) { 1326 q->p_flag &= ~P_STATCHILD; 1327 error = 0; 1328 } else 1329 error = msleep(q, &q->p_mtx, PWAIT | PCATCH, "svr4_wait", 0); 1330 PROC_UNLOCK(q); 1331 if (error) 1332 return error; 1333 goto loop; 1334} 1335 1336 1337static void 1338bsd_statfs_to_svr4_statvfs(bfs, sfs) 1339 const struct statfs *bfs; 1340 struct svr4_statvfs *sfs; 1341{ 1342 sfs->f_bsize = bfs->f_iosize; /* XXX */ 1343 sfs->f_frsize = bfs->f_bsize; 1344 sfs->f_blocks = bfs->f_blocks; 1345 sfs->f_bfree = bfs->f_bfree; 1346 sfs->f_bavail = bfs->f_bavail; 1347 sfs->f_files = bfs->f_files; 1348 sfs->f_ffree = bfs->f_ffree; 1349 sfs->f_favail = bfs->f_ffree; 1350 sfs->f_fsid = bfs->f_fsid.val[0]; 1351 memcpy(sfs->f_basetype, bfs->f_fstypename, sizeof(sfs->f_basetype)); 1352 sfs->f_flag = 0; 1353 if (bfs->f_flags & MNT_RDONLY) 1354 sfs->f_flag |= SVR4_ST_RDONLY; 1355 if (bfs->f_flags & MNT_NOSUID) 1356 sfs->f_flag |= SVR4_ST_NOSUID; 1357 sfs->f_namemax = MAXNAMLEN; 1358 memcpy(sfs->f_fstr, bfs->f_fstypename, sizeof(sfs->f_fstr)); /* XXX */ 1359 memset(sfs->f_filler, 0, sizeof(sfs->f_filler)); 1360} 1361 1362 1363static void 1364bsd_statfs_to_svr4_statvfs64(bfs, sfs) 1365 const struct statfs *bfs; 1366 struct svr4_statvfs64 *sfs; 1367{ 1368 sfs->f_bsize = bfs->f_iosize; /* XXX */ 1369 sfs->f_frsize = bfs->f_bsize; 1370 sfs->f_blocks = bfs->f_blocks; 1371 sfs->f_bfree = bfs->f_bfree; 1372 sfs->f_bavail = bfs->f_bavail; 1373 sfs->f_files = bfs->f_files; 1374 sfs->f_ffree = bfs->f_ffree; 1375 sfs->f_favail = bfs->f_ffree; 1376 sfs->f_fsid = bfs->f_fsid.val[0]; 1377 memcpy(sfs->f_basetype, bfs->f_fstypename, sizeof(sfs->f_basetype)); 1378 sfs->f_flag = 0; 1379 if (bfs->f_flags & MNT_RDONLY) 1380 sfs->f_flag |= SVR4_ST_RDONLY; 1381 if (bfs->f_flags & MNT_NOSUID) 1382 sfs->f_flag |= SVR4_ST_NOSUID; 1383 sfs->f_namemax = MAXNAMLEN; 1384 memcpy(sfs->f_fstr, bfs->f_fstypename, sizeof(sfs->f_fstr)); /* XXX */ 1385 memset(sfs->f_filler, 0, sizeof(sfs->f_filler)); 1386} 1387 1388 1389int 1390svr4_sys_statvfs(td, uap) 1391 struct thread *td; 1392 struct svr4_sys_statvfs_args *uap; 1393{ 1394 struct svr4_statvfs sfs; 1395 struct statfs bfs; 1396 char *path; 1397 int error; 1398 1399 CHECKALTEXIST(td, uap->path, &path); 1400 1401 error = kern_statfs(td, path, UIO_SYSSPACE, &bfs); 1402 free(path, M_TEMP); 1403 if (error) 1404 return (error); 1405 bsd_statfs_to_svr4_statvfs(&bfs, &sfs); 1406 return copyout(&sfs, uap->fs, sizeof(sfs)); 1407} 1408 1409 1410int 1411svr4_sys_fstatvfs(td, uap) 1412 struct thread *td; 1413 struct svr4_sys_fstatvfs_args *uap; 1414{ 1415 struct svr4_statvfs sfs; 1416 struct statfs bfs; 1417 int error; 1418 1419 error = kern_fstatfs(td, uap->fd, &bfs); 1420 if (error) 1421 return (error); 1422 bsd_statfs_to_svr4_statvfs(&bfs, &sfs); 1423 return copyout(&sfs, uap->fs, sizeof(sfs)); 1424} 1425 1426 1427int 1428svr4_sys_statvfs64(td, uap) 1429 struct thread *td; 1430 struct svr4_sys_statvfs64_args *uap; 1431{ 1432 struct svr4_statvfs64 sfs; 1433 struct statfs bfs; 1434 char *path; 1435 int error; 1436 1437 CHECKALTEXIST(td, uap->path, &path); 1438 1439 error = kern_statfs(td, path, UIO_SYSSPACE, &bfs); 1440 free(path, M_TEMP); 1441 if (error) 1442 return (error); 1443 bsd_statfs_to_svr4_statvfs64(&bfs, &sfs); 1444 return copyout(&sfs, uap->fs, sizeof(sfs)); 1445} 1446 1447 1448int 1449svr4_sys_fstatvfs64(td, uap) 1450 struct thread *td; 1451 struct svr4_sys_fstatvfs64_args *uap; 1452{ 1453 struct svr4_statvfs64 sfs; 1454 struct statfs bfs; 1455 int error; 1456 1457 error = kern_fstatfs(td, uap->fd, &bfs); 1458 if (error) 1459 return (error); 1460 bsd_statfs_to_svr4_statvfs64(&bfs, &sfs); 1461 return copyout(&sfs, uap->fs, sizeof(sfs)); 1462} 1463 1464int 1465svr4_sys_alarm(td, uap) 1466 struct thread *td; 1467 struct svr4_sys_alarm_args *uap; 1468{ 1469 struct itimerval itv, oitv; 1470 int error; 1471 1472 timevalclear(&itv.it_interval); 1473 itv.it_value.tv_sec = uap->sec; 1474 itv.it_value.tv_usec = 0; 1475 error = kern_setitimer(td, ITIMER_REAL, &itv, &oitv); 1476 if (error) 1477 return (error); 1478 if (oitv.it_value.tv_usec != 0) 1479 oitv.it_value.tv_sec++; 1480 td->td_retval[0] = oitv.it_value.tv_sec; 1481 return (0); 1482} 1483 1484int 1485svr4_sys_gettimeofday(td, uap) 1486 struct thread *td; 1487 struct svr4_sys_gettimeofday_args *uap; 1488{ 1489 if (uap->tp) { 1490 struct timeval atv; 1491 1492 microtime(&atv); 1493 return copyout(&atv, uap->tp, sizeof (atv)); 1494 } 1495 1496 return 0; 1497} 1498 1499int 1500svr4_sys_facl(td, uap) 1501 struct thread *td; 1502 struct svr4_sys_facl_args *uap; 1503{ 1504 int *retval; 1505 1506 retval = td->td_retval; 1507 *retval = 0; 1508 1509 switch (uap->cmd) { 1510 case SVR4_SYS_SETACL: 1511 /* We don't support acls on any filesystem */ 1512 return ENOSYS; 1513 1514 case SVR4_SYS_GETACL: 1515 return copyout(retval, &uap->num, 1516 sizeof(uap->num)); 1517 1518 case SVR4_SYS_GETACLCNT: 1519 return 0; 1520 1521 default: 1522 return EINVAL; 1523 } 1524} 1525 1526 1527int 1528svr4_sys_acl(td, uap) 1529 struct thread *td; 1530 struct svr4_sys_acl_args *uap; 1531{ 1532 /* XXX: for now the same */ 1533 return svr4_sys_facl(td, (struct svr4_sys_facl_args *)uap); 1534} 1535 1536int 1537svr4_sys_auditsys(td, uap) 1538 struct thread *td; 1539 struct svr4_sys_auditsys_args *uap; 1540{ 1541 /* 1542 * XXX: Big brother is *not* watching. 1543 */ 1544 return 0; 1545} 1546 1547int 1548svr4_sys_memcntl(td, uap) 1549 struct thread *td; 1550 struct svr4_sys_memcntl_args *uap; 1551{ 1552 switch (uap->cmd) { 1553 case SVR4_MC_SYNC: 1554 { 1555 struct msync_args msa; 1556 1557 msa.addr = uap->addr; 1558 msa.len = uap->len; 1559 msa.flags = (int)uap->arg; 1560 1561 return msync(td, &msa); 1562 } 1563 case SVR4_MC_ADVISE: 1564 { 1565 struct madvise_args maa; 1566 1567 maa.addr = uap->addr; 1568 maa.len = uap->len; 1569 maa.behav = (int)uap->arg; 1570 1571 return madvise(td, &maa); 1572 } 1573 case SVR4_MC_LOCK: 1574 case SVR4_MC_UNLOCK: 1575 case SVR4_MC_LOCKAS: 1576 case SVR4_MC_UNLOCKAS: 1577 return EOPNOTSUPP; 1578 default: 1579 return ENOSYS; 1580 } 1581} 1582 1583 1584int 1585svr4_sys_nice(td, uap) 1586 struct thread *td; 1587 struct svr4_sys_nice_args *uap; 1588{ 1589 struct setpriority_args ap; 1590 int error; 1591 1592 ap.which = PRIO_PROCESS; 1593 ap.who = 0; 1594 ap.prio = uap->prio; 1595 1596 if ((error = setpriority(td, &ap)) != 0) 1597 return error; 1598 1599 /* the cast is stupid, but the structures are the same */ 1600 if ((error = getpriority(td, (struct getpriority_args *)&ap)) != 0) 1601 return error; 1602 1603 return 0; 1604} 1605 1606int 1607svr4_sys_resolvepath(td, uap) 1608 struct thread *td; 1609 struct svr4_sys_resolvepath_args *uap; 1610{ 1611 struct nameidata nd; 1612 int error, *retval = td->td_retval; 1613 unsigned int ncopy; 1614 1615 NDINIT(&nd, LOOKUP, NOFOLLOW | SAVENAME | MPSAFE, UIO_USERSPACE, 1616 uap->path, td); 1617 1618 if ((error = namei(&nd)) != 0) 1619 return (error); 1620 NDFREE(&nd, NDF_NO_FREE_PNBUF); 1621 VFS_UNLOCK_GIANT(NDHASGIANT(&nd)); 1622 1623 ncopy = min(uap->bufsiz, strlen(nd.ni_cnd.cn_pnbuf) + 1); 1624 if ((error = copyout(nd.ni_cnd.cn_pnbuf, uap->buf, ncopy)) != 0) 1625 goto bad; 1626 1627 *retval = ncopy; 1628bad: 1629 NDFREE(&nd, NDF_ONLY_PNBUF); 1630 return error; 1631} 1632