1 /* $NetBSD: sunos_misc.c,v 1.171 2017/07/28 15:34:06 riastradh Exp $ */ 2 3 /* 4 * Copyright (c) 1992, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * This software was developed by the Computer Systems Engineering group 8 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 9 * contributed to Berkeley. 10 * 11 * All advertising materials mentioning features or use of this software 12 * must display the following acknowledgement: 13 * This product includes software developed by the University of 14 * California, Lawrence Berkeley Laboratory. 15 * 16 * Redistribution and use in source and binary forms, with or without 17 * modification, are permitted provided that the following conditions 18 * are met: 19 * 1. Redistributions of source code must retain the above copyright 20 * notice, this list of conditions and the following disclaimer. 21 * 2. Redistributions in binary form must reproduce the above copyright 22 * notice, this list of conditions and the following disclaimer in the 23 * documentation and/or other materials provided with the distribution. 24 * 3. Neither the name of the University nor the names of its contributors 25 * may be used to endorse or promote products derived from this software 26 * without specific prior written permission. 27 * 28 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 29 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 30 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 31 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 32 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 33 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 34 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 35 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 36 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 37 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 38 * SUCH DAMAGE. 39 * 40 * @(#)sunos_misc.c 8.1 (Berkeley) 6/18/93 41 * 42 * Header: sunos_misc.c,v 1.16 93/04/07 02:46:27 torek Exp 43 */ 44 45 /* 46 * SunOS compatibility module. 47 * 48 * SunOS system calls that are implemented differently in BSD are 49 * handled here. 50 */ 51 52 #include <sys/cdefs.h> 53 __KERNEL_RCSID(0, "$NetBSD: sunos_misc.c,v 1.171 2017/07/28 15:34:06 riastradh Exp $"); 54 55 #include <sys/param.h> 56 #include <sys/systm.h> 57 #include <sys/namei.h> 58 #include <sys/proc.h> 59 #include <sys/dirent.h> 60 #include <sys/file.h> 61 #include <sys/stat.h> 62 #include <sys/filedesc.h> 63 #include <sys/ioctl.h> 64 #include <sys/kernel.h> 65 #include <sys/reboot.h> 66 #include <sys/malloc.h> 67 #include <sys/mbuf.h> 68 #include <sys/mman.h> 69 #include <sys/mount.h> 70 #include <sys/ptrace.h> 71 #include <sys/resource.h> 72 #include <sys/resourcevar.h> 73 #include <sys/signal.h> 74 #include <sys/signalvar.h> 75 #include <sys/socket.h> 76 #include <sys/tty.h> 77 #include <sys/vnode.h> 78 #include <sys/uio.h> 79 #include <sys/wait.h> 80 #include <sys/utsname.h> 81 #include <sys/unistd.h> 82 #include <sys/syscall.h> 83 #include <sys/syscallargs.h> 84 #include <sys/conf.h> 85 #include <sys/socketvar.h> 86 #include <sys/exec.h> 87 #include <sys/swap.h> 88 #include <sys/kauth.h> 89 90 #include <compat/sys/signal.h> 91 92 #include <compat/sunos/sunos.h> 93 #include <compat/sunos/sunos_syscallargs.h> 94 #include <compat/common/compat_util.h> 95 #include <compat/sunos/sunos_dirent.h> 96 #include <compat/sys/mount.h> 97 98 #include <netinet/in.h> 99 100 #include <miscfs/specfs/specdev.h> 101 102 #include <nfs/rpcv2.h> 103 #include <nfs/nfsproto.h> 104 #include <nfs/nfs.h> 105 #include <nfs/nfsmount.h> 106 107 static int sunstatfs(struct statvfs *, void *); 108 109 int 110 sunos_sys_stime(struct lwp *l, const struct sunos_sys_stime_args *uap, register_t *retval) 111 { 112 struct timeval tv; 113 int error; 114 115 error = copyin(SCARG(uap, tp), &tv.tv_sec, sizeof(tv.tv_sec)); 116 if (error) 117 return error; 118 tv.tv_usec = 0; 119 120 return settimeofday1(&tv, false, NULL, l, true); 121 } 122 123 int 124 sunos_sys_wait4(struct lwp *l, const struct sunos_sys_wait4_args *uap, register_t *retval) 125 { 126 struct compat_50_sys_wait4_args bsd_ua; 127 128 SCARG(&bsd_ua, pid) = SCARG(uap, pid) == 0 ? WAIT_ANY : SCARG(uap, pid); 129 SCARG(&bsd_ua, status) = SCARG(uap, status); 130 SCARG(&bsd_ua, options) = SCARG(uap, options); 131 SCARG(&bsd_ua, rusage) = SCARG(uap, rusage); 132 133 return (compat_50_sys_wait4(l, &bsd_ua, retval)); 134 } 135 136 int 137 sunos_sys_creat(struct lwp *l, const struct sunos_sys_creat_args *uap, register_t *retval) 138 { 139 struct sys_open_args ouap; 140 141 SCARG(&ouap, path) = SCARG(uap, path); 142 SCARG(&ouap, flags) = O_WRONLY | O_CREAT | O_TRUNC; 143 SCARG(&ouap, mode) = SCARG(uap, mode); 144 145 return (sys_open(l, &ouap, retval)); 146 } 147 148 int 149 sunos_sys_execv(struct lwp *l, const struct sunos_sys_execv_args *uap, register_t *retval) 150 { 151 /* { 152 syscallarg(const char *) path; 153 syscallarg(char **) argv; 154 } */ 155 struct sys_execve_args ap; 156 157 SCARG(&ap, path) = SCARG(uap, path); 158 SCARG(&ap, argp) = SCARG(uap, argp); 159 SCARG(&ap, envp) = NULL; 160 161 return (sys_execve(l, &ap, retval)); 162 } 163 164 int 165 sunos_sys_execve(struct lwp *l, const struct sunos_sys_execve_args *uap, register_t *retval) 166 { 167 /* { 168 syscallarg(const char *) path; 169 syscallarg(char **) argv; 170 syscallarg(char **) envp; 171 } */ 172 struct sys_execve_args ap; 173 174 SCARG(&ap, path) = SCARG(uap, path); 175 SCARG(&ap, argp) = SCARG(uap, argp); 176 SCARG(&ap, envp) = SCARG(uap, envp); 177 178 return (sys_execve(l, &ap, retval)); 179 } 180 181 int 182 sunos_sys_omsync(struct lwp *l, const struct sunos_sys_omsync_args *uap, register_t *retval) 183 { 184 struct sys___msync13_args ouap; 185 186 SCARG(&ouap, addr) = SCARG(uap, addr); 187 SCARG(&ouap, len) = SCARG(uap, len); 188 SCARG(&ouap, flags) = SCARG(uap, flags); 189 190 return (sys___msync13(l, &ouap, retval)); 191 } 192 193 int 194 sunos_sys_unmount(struct lwp *l, const struct sunos_sys_unmount_args *uap, register_t *retval) 195 { 196 struct sys_unmount_args ouap; 197 198 SCARG(&ouap, path) = SCARG(uap, path); 199 SCARG(&ouap, flags) = 0; 200 201 return (sys_unmount(l, &ouap, retval)); 202 } 203 204 /* 205 * Conversion table for SunOS NFS mount flags. 206 */ 207 static struct { 208 int sun_flg; 209 int bsd_flg; 210 } sunnfs_flgtab[] = { 211 { SUNNFS_SOFT, NFSMNT_SOFT }, 212 { SUNNFS_WSIZE, NFSMNT_WSIZE }, 213 { SUNNFS_RSIZE, NFSMNT_RSIZE }, 214 { SUNNFS_TIMEO, NFSMNT_TIMEO }, 215 { SUNNFS_RETRANS, NFSMNT_RETRANS }, 216 { SUNNFS_HOSTNAME, 0 }, /* Ignored */ 217 { SUNNFS_INT, NFSMNT_INT }, 218 { SUNNFS_NOAC, 0 }, /* Ignored */ 219 { SUNNFS_ACREGMIN, 0 }, /* Ignored */ 220 { SUNNFS_ACREGMAX, 0 }, /* Ignored */ 221 { SUNNFS_ACDIRMIN, 0 }, /* Ignored */ 222 { SUNNFS_ACDIRMAX, 0 }, /* Ignored */ 223 { SUNNFS_SECURE, 0 }, /* Ignored */ 224 { SUNNFS_NOCTO, 0 }, /* Ignored */ 225 { SUNNFS_POSIX, 0 } /* Ignored */ 226 }; 227 228 int 229 sunos_sys_mount(struct lwp *l, const struct sunos_sys_mount_args *uap, register_t *retval) 230 { 231 int oflags = SCARG(uap, flags), nflags, error; 232 char fsname[MFSNAMELEN]; 233 register_t dummy; 234 235 if (oflags & (SUNM_NOSUB | SUNM_SYS5)) 236 return (EINVAL); 237 if ((oflags & SUNM_NEWTYPE) == 0) 238 return (EINVAL); 239 nflags = 0; 240 if (oflags & SUNM_RDONLY) 241 nflags |= MNT_RDONLY; 242 if (oflags & SUNM_NOSUID) 243 nflags |= MNT_NOSUID; 244 if (oflags & SUNM_REMOUNT) 245 nflags |= MNT_UPDATE; 246 247 error = copyinstr(SCARG(uap, type), fsname, sizeof fsname, NULL); 248 if (error) 249 return (error); 250 251 if (strcmp(fsname, "nfs") == 0) { 252 struct sunos_nfs_args sna; 253 struct nfs_args na; 254 int n; 255 256 error = copyin(SCARG(uap, data), &sna, sizeof sna); 257 if (error) 258 return (error); 259 /* sa.sa_len = sizeof(sain); */ 260 na.version = NFS_ARGSVERSION; 261 na.addr = (void *)sna.addr; 262 na.addrlen = sizeof(struct sockaddr); 263 na.sotype = SOCK_DGRAM; 264 na.proto = IPPROTO_UDP; 265 na.fh = sna.fh; 266 na.fhsize = NFSX_V2FH; 267 na.flags = 0; 268 n = sizeof(sunnfs_flgtab) / sizeof(sunnfs_flgtab[0]); 269 while (--n >= 0) 270 if (sna.flags & sunnfs_flgtab[n].sun_flg) 271 na.flags |= sunnfs_flgtab[n].bsd_flg; 272 na.wsize = sna.wsize; 273 na.rsize = sna.rsize; 274 if (na.flags & NFSMNT_RSIZE) { 275 na.flags |= NFSMNT_READDIRSIZE; 276 na.readdirsize = na.rsize; 277 } 278 na.timeo = sna.timeo; 279 na.retrans = sna.retrans; 280 na.hostname = /* (char *)(u_long) */ sna.hostname; 281 282 return do_sys_mount(l, "nfs", UIO_SYSSPACE, 283 SCARG(uap, dir), nflags, &na, 284 UIO_SYSSPACE, sizeof na, &dummy); 285 } 286 287 if (strcmp(fsname, "4.2") == 0) 288 strcpy(fsname, "ffs"); 289 290 return do_sys_mount(l, fsname, UIO_SYSSPACE, 291 SCARG(uap, dir), nflags, SCARG(uap, data), 292 UIO_USERSPACE, 0, &dummy); 293 } 294 295 int 296 async_daemon(struct lwp *l, const void *v, register_t *retval) 297 { 298 299 return kpause("fakeniod", false, 0, NULL); 300 } 301 302 void native_to_sunos_sigset(const sigset_t *, int *); 303 void sunos_to_native_sigset(const int, sigset_t *); 304 305 inline void 306 native_to_sunos_sigset(const sigset_t *ss, int *mask) 307 { 308 *mask = ss->__bits[0]; 309 } 310 311 inline void 312 sunos_to_native_sigset(const int mask, sigset_t *ss) 313 { 314 315 ss->__bits[0] = mask; 316 ss->__bits[1] = 0; 317 ss->__bits[2] = 0; 318 ss->__bits[3] = 0; 319 } 320 321 int 322 sunos_sys_sigpending(struct lwp *l, const struct sunos_sys_sigpending_args *uap, register_t *retval) 323 { 324 sigset_t ss; 325 int mask; 326 327 sigpending1(l, &ss); 328 native_to_sunos_sigset(&ss, &mask); 329 330 return (copyout((void *)&mask, (void *)SCARG(uap, mask), sizeof(int))); 331 } 332 333 int 334 sunos_sys_sigsuspend(struct lwp *l, const struct sunos_sys_sigsuspend_args *uap, register_t *retval) 335 { 336 /* { 337 syscallarg(int) mask; 338 } */ 339 int mask; 340 sigset_t ss; 341 342 mask = SCARG(uap, mask); 343 sunos_to_native_sigset(mask, &ss); 344 return (sigsuspend1(l, &ss)); 345 } 346 347 /* 348 * Read Sun-style directory entries. We suck them into kernel space so 349 * that they can be massaged before being copied out to user code. Like 350 * SunOS, we squish out `empty' entries. 351 * 352 * This is quite ugly, but what do you expect from compatibility code? 353 */ 354 int 355 sunos_sys_getdents(struct lwp *l, const struct sunos_sys_getdents_args *uap, register_t *retval) 356 { 357 struct dirent *bdp; 358 struct vnode *vp; 359 char *inp, *buf; /* BSD-format */ 360 int len, reclen; /* BSD-format */ 361 char *outp; /* Sun-format */ 362 int resid, sunos_reclen;/* Sun-format */ 363 struct file *fp; 364 struct uio auio; 365 struct iovec aiov; 366 struct sunos_dirent idb; 367 off_t off; /* true file offset */ 368 int buflen, error, eofflag; 369 off_t *cookiebuf, *cookie; 370 int ncookies; 371 372 if ((error = fd_getvnode(SCARG(uap, fd), &fp)) != 0) 373 return (error); 374 375 if ((fp->f_flag & FREAD) == 0) { 376 error = EBADF; 377 goto out1; 378 } 379 380 vp = fp->f_vnode; 381 if (vp->v_type != VDIR) { 382 error = EINVAL; 383 goto out1; 384 } 385 386 buflen = min(MAXBSIZE, SCARG(uap, nbytes)); 387 buf = malloc(buflen, M_TEMP, M_WAITOK); 388 vn_lock(vp, LK_EXCLUSIVE | LK_RETRY); 389 off = fp->f_offset; 390 again: 391 aiov.iov_base = buf; 392 aiov.iov_len = buflen; 393 auio.uio_iov = &aiov; 394 auio.uio_iovcnt = 1; 395 auio.uio_rw = UIO_READ; 396 auio.uio_resid = buflen; 397 auio.uio_offset = off; 398 UIO_SETUP_SYSSPACE(&auio); 399 /* 400 * First we read into the malloc'ed buffer, then 401 * we massage it into user space, one record at a time. 402 */ 403 error = VOP_READDIR(vp, &auio, fp->f_cred, &eofflag, &cookiebuf, 404 &ncookies); 405 if (error) 406 goto out; 407 408 inp = buf; 409 outp = SCARG(uap, buf); 410 resid = SCARG(uap, nbytes); 411 if ((len = buflen - auio.uio_resid) == 0) 412 goto eof; 413 414 for (cookie = cookiebuf; len > 0; len -= reclen) { 415 bdp = (struct dirent *)inp; 416 reclen = bdp->d_reclen; 417 if (reclen & 3) { 418 error = EIO; 419 goto out; 420 } 421 if ((*cookie >> 32) != 0) { 422 compat_offseterr(vp, "sunos_getdents"); 423 error = EINVAL; 424 goto out; 425 } 426 if (bdp->d_fileno == 0) { 427 inp += reclen; /* it is a hole; squish it out */ 428 if (cookie) 429 off = *cookie++; 430 else 431 off += reclen; 432 continue; 433 } 434 sunos_reclen = SUNOS_RECLEN(&idb, bdp->d_namlen); 435 if (reclen > len || resid < sunos_reclen) { 436 /* entry too big for buffer, so just stop */ 437 outp++; 438 break; 439 } 440 if (cookie) 441 off = *cookie++; /* each entry points to next */ 442 else 443 off += reclen; 444 /* 445 * Massage in place to make a Sun-shaped dirent (otherwise 446 * we have to worry about touching user memory outside of 447 * the copyout() call). 448 */ 449 idb.d_fileno = bdp->d_fileno; 450 idb.d_off = off; 451 idb.d_reclen = sunos_reclen; 452 idb.d_namlen = bdp->d_namlen; 453 strlcpy(idb.d_name, bdp->d_name, sizeof(idb.d_name)); 454 if ((error = copyout((void *)&idb, outp, sunos_reclen)) != 0) 455 goto out; 456 /* advance past this real entry */ 457 inp += reclen; 458 /* advance output past Sun-shaped entry */ 459 outp += sunos_reclen; 460 resid -= sunos_reclen; 461 } 462 463 /* if we squished out the whole block, try again */ 464 if (outp == SCARG(uap, buf)) { 465 if (cookiebuf) 466 free(cookiebuf, M_TEMP); 467 cookiebuf = NULL; 468 goto again; 469 } 470 fp->f_offset = off; /* update the vnode offset */ 471 472 eof: 473 *retval = SCARG(uap, nbytes) - resid; 474 out: 475 VOP_UNLOCK(vp); 476 free(cookiebuf, M_TEMP); 477 free(buf, M_TEMP); 478 out1: 479 fd_putfile(SCARG(uap, fd)); 480 return (error); 481 } 482 483 #define SUNOS__MAP_NEW 0x80000000 /* if not, old mmap & cannot handle */ 484 485 int 486 sunos_sys_mmap(struct lwp *l, const struct sunos_sys_mmap_args *uap, register_t *retval) 487 { 488 struct sys_mmap_args ouap; 489 490 /* 491 * Verify the arguments. 492 */ 493 if (SCARG(uap, prot) & ~(PROT_READ|PROT_WRITE|PROT_EXEC)) 494 return (EINVAL); /* XXX still needed? */ 495 496 if ((SCARG(uap, flags) & SUNOS__MAP_NEW) == 0) 497 return (EINVAL); 498 499 SCARG(&ouap, flags) = SCARG(uap, flags) & ~SUNOS__MAP_NEW; 500 SCARG(&ouap, addr) = SCARG(uap, addr); 501 SCARG(&ouap, len) = SCARG(uap, len); 502 SCARG(&ouap, prot) = SCARG(uap, prot); 503 SCARG(&ouap, fd) = SCARG(uap, fd); 504 SCARG(&ouap, pos) = SCARG(uap, pos); 505 506 return (sys_mmap(l, &ouap, retval)); 507 } 508 509 #define MC_SYNC 1 510 #define MC_LOCK 2 511 #define MC_UNLOCK 3 512 #define MC_ADVISE 4 513 #define MC_LOCKAS 5 514 #define MC_UNLOCKAS 6 515 516 int 517 sunos_sys_mctl(struct lwp *l, const struct sunos_sys_mctl_args *uap, register_t *retval) 518 { 519 520 switch (SCARG(uap, func)) { 521 case MC_ADVISE: /* ignore for now */ 522 return (0); 523 case MC_SYNC: /* translate to msync */ 524 return (sys___msync13(l, (const void *)uap, retval)); 525 default: 526 return (EINVAL); 527 } 528 } 529 530 int 531 sunos_sys_setsockopt(struct lwp *l, const struct sunos_sys_setsockopt_args *uap, register_t *retval) 532 { 533 struct sockopt sopt; 534 struct socket *so; 535 int name = SCARG(uap, name); 536 int error; 537 538 /* fd_getsock() will use the descriptor for us */ 539 if ((error = fd_getsock(SCARG(uap, s), &so)) != 0) 540 return (error); 541 #define SO_DONTLINGER (~SO_LINGER) 542 if (name == SO_DONTLINGER) { 543 struct linger lg; 544 545 lg.l_onoff = 0; 546 error = so_setsockopt(l, so, SCARG(uap, level), SO_LINGER, 547 &lg, sizeof(lg)); 548 goto out; 549 } 550 if (SCARG(uap, level) == IPPROTO_IP) { 551 #define SUNOS_IP_MULTICAST_IF 2 552 #define SUNOS_IP_MULTICAST_TTL 3 553 #define SUNOS_IP_MULTICAST_LOOP 4 554 #define SUNOS_IP_ADD_MEMBERSHIP 5 555 #define SUNOS_IP_DROP_MEMBERSHIP 6 556 static const int ipoptxlat[] = { 557 IP_MULTICAST_IF, 558 IP_MULTICAST_TTL, 559 IP_MULTICAST_LOOP, 560 IP_ADD_MEMBERSHIP, 561 IP_DROP_MEMBERSHIP 562 }; 563 if (name >= SUNOS_IP_MULTICAST_IF && 564 name <= SUNOS_IP_DROP_MEMBERSHIP) { 565 name = ipoptxlat[name - SUNOS_IP_MULTICAST_IF]; 566 } 567 } 568 if (SCARG(uap, valsize) > MLEN) { 569 error = EINVAL; 570 goto out; 571 } 572 sockopt_init(&sopt, SCARG(uap, level), name, SCARG(uap, valsize)); 573 if (SCARG(uap, val)) { 574 error = copyin(SCARG(uap, val), sopt.sopt_data, 575 (u_int)SCARG(uap, valsize)); 576 } 577 if (error == 0) 578 error = sosetopt(so, &sopt); 579 sockopt_destroy(&sopt); 580 out: 581 fd_putfile(SCARG(uap, s)); 582 return (error); 583 } 584 585 static inline int sunos_sys_socket_common(struct lwp *, register_t *, 586 int type); 587 static inline int 588 sunos_sys_socket_common(struct lwp *l, register_t *retval, int type) 589 { 590 struct socket *so; 591 int error, fd; 592 593 /* fd_getsock() will use the descriptor for us */ 594 fd = (int)*retval; 595 if ((error = fd_getsock(fd, &so)) == 0) { 596 if (type == SOCK_DGRAM) 597 so->so_options |= SO_BROADCAST; 598 fd_putfile(fd); 599 } 600 return (error); 601 } 602 603 int 604 sunos_sys_socket(struct lwp *l, const struct sunos_sys_socket_args *uap, register_t *retval) 605 { 606 /* { 607 syscallarg(int) domain; 608 syscallarg(int) type; 609 syscallarg(int) protocol; 610 } */ 611 int error; 612 613 error = compat_30_sys_socket(l, (const void *)uap, retval); 614 if (error) 615 return (error); 616 return sunos_sys_socket_common(l, retval, SCARG(uap, type)); 617 } 618 619 int 620 sunos_sys_socketpair(struct lwp *l, const struct sunos_sys_socketpair_args *uap, register_t *retval) 621 { 622 /* { 623 syscallarg(int) domain; 624 syscallarg(int) type; 625 syscallarg(int) protocol; 626 syscallarg(int *) rsv; 627 } */ 628 int error; 629 630 error = sys_socketpair(l, (const void *)uap, retval); 631 if (error) 632 return (error); 633 return sunos_sys_socket_common(l, retval, SCARG(uap, type)); 634 } 635 636 /* 637 * XXX: This needs cleaning up. 638 */ 639 int 640 sunos_sys_auditsys(struct lwp *l, const struct sunos_sys_auditsys_args *uap, register_t *retval) 641 { 642 return 0; 643 } 644 645 int 646 sunos_sys_uname(struct lwp *l, const struct sunos_sys_uname_args *uap, register_t *retval) 647 { 648 struct sunos_utsname sut; 649 650 memset(&sut, 0, sizeof(sut)); 651 652 memcpy(sut.sysname, ostype, sizeof(sut.sysname) - 1); 653 memcpy(sut.nodename, hostname, sizeof(sut.nodename)); 654 sut.nodename[sizeof(sut.nodename)-1] = '\0'; 655 memcpy(sut.release, osrelease, sizeof(sut.release) - 1); 656 memcpy(sut.version, "1", sizeof(sut.version) - 1); 657 memcpy(sut.machine, machine, sizeof(sut.machine) - 1); 658 659 return copyout((void *)&sut, (void *)SCARG(uap, name), 660 sizeof(struct sunos_utsname)); 661 } 662 663 int 664 sunos_sys_setpgrp(struct lwp *l, const struct sunos_sys_setpgrp_args *uap, register_t *retval) 665 { 666 struct proc *p = l->l_proc; 667 668 /* 669 * difference to our setpgid call is to include backwards 670 * compatibility to pre-setsid() binaries. Do setsid() 671 * instead of setpgid() in those cases where the process 672 * tries to create a new session the old way. 673 */ 674 if (!SCARG(uap, pgid) && 675 (!SCARG(uap, pid) || SCARG(uap, pid) == p->p_pid)) 676 return sys_setsid(l, NULL, retval); 677 else 678 return sys_setpgid(l, (const void *)uap, retval); 679 } 680 681 int 682 sunos_sys_open(struct lwp *l, const struct sunos_sys_open_args *uap, register_t *retval) 683 { 684 struct proc *p = l->l_proc; 685 struct sys_open_args open_ua; 686 int smode, nmode; 687 int noctty; 688 int ret; 689 690 /* convert mode into NetBSD mode */ 691 smode = SCARG(uap, flags); 692 noctty = smode & 0x8000; 693 nmode = smode & 694 (0x0001 | 0x0002 | 0x0008 | 0x0040 | 0x0200 | 0x0400 | 0x0800); 695 nmode |= ((smode & (0x0004 | 0x1000 | 0x4000)) ? O_NONBLOCK : 0); 696 nmode |= ((smode & 0x0080) ? O_SHLOCK : 0); 697 nmode |= ((smode & 0x0100) ? O_EXLOCK : 0); 698 nmode |= ((smode & 0x2000) ? O_FSYNC : 0); 699 700 SCARG(&open_ua, path) = SCARG(uap, path); 701 SCARG(&open_ua, flags) = nmode; 702 SCARG(&open_ua, mode) = SCARG(uap, mode); 703 ret = sys_open(l, &open_ua, retval); 704 705 /* XXXSMP */ 706 if (!ret && !noctty && SESS_LEADER(p) && !(p->p_lflag & PL_CONTROLT)) { 707 file_t *fp; 708 int fd; 709 710 fd = (int)*retval; 711 fp = fd_getfile(fd); 712 713 /* ignore any error, just give it a try */ 714 if (fp != NULL) { 715 if (fp->f_type == DTYPE_VNODE) 716 (fp->f_ops->fo_ioctl)(fp, TIOCSCTTY, NULL); 717 fd_putfile(fd); 718 } 719 } 720 return ret; 721 } 722 723 int 724 sunos_sys_ustat(struct lwp *l, const struct sunos_sys_ustat_args *uap, register_t *retval) 725 { 726 struct sunos_ustat us; 727 int error; 728 729 memset(&us, 0, sizeof us); 730 731 /* 732 * XXX: should set f_tfree and f_tinode at least 733 * How do we translate dev -> fstat? (and then to sunos_ustat) 734 */ 735 736 if ((error = copyout(&us, SCARG(uap, buf), sizeof us)) != 0) 737 return (error); 738 return 0; 739 } 740 741 int 742 sunos_sys_quotactl(struct lwp *l, const struct sunos_sys_quotactl_args *uap, register_t *retval) 743 { 744 745 return EINVAL; 746 } 747 748 int 749 sunos_sys_vhangup(struct lwp *l, const void *v, register_t *retval) 750 { 751 struct proc *p = l->l_proc; 752 struct session *sp = p->p_session; 753 754 if (sp->s_ttyvp == 0) 755 return 0; 756 757 if (sp->s_ttyp && sp->s_ttyp->t_session == sp && sp->s_ttyp->t_pgrp) 758 pgsignal(sp->s_ttyp->t_pgrp, SIGHUP, 1); 759 760 (void) ttywait(sp->s_ttyp); 761 if (sp->s_ttyvp) 762 VOP_REVOKE(sp->s_ttyvp, REVOKEALL); 763 if (sp->s_ttyvp) 764 vrele(sp->s_ttyvp); 765 sp->s_ttyvp = NULL; 766 767 return 0; 768 } 769 770 static int 771 sunstatfs(struct statvfs *sp, void *buf) 772 { 773 struct sunos_statfs ssfs; 774 775 memset(&ssfs, 0, sizeof ssfs); 776 ssfs.f_type = 0; 777 ssfs.f_bsize = sp->f_bsize; 778 ssfs.f_blocks = sp->f_blocks; 779 ssfs.f_bfree = sp->f_bfree; 780 ssfs.f_bavail = sp->f_bavail; 781 ssfs.f_files = sp->f_files; 782 ssfs.f_ffree = sp->f_ffree; 783 ssfs.f_fsid = sp->f_fsidx; 784 return copyout((void *)&ssfs, buf, sizeof ssfs); 785 } 786 787 int 788 sunos_sys_statfs(struct lwp *l, const struct sunos_sys_statfs_args *uap, register_t *retval) 789 { 790 struct mount *mp; 791 struct statvfs *sp; 792 int error; 793 struct vnode *vp; 794 795 error = namei_simple_user(SCARG(uap, path), 796 NSM_FOLLOW_TRYEMULROOT, &vp); 797 if (error != 0) 798 return (error); 799 mp = vp->v_mount; 800 sp = &mp->mnt_stat; 801 vrele(vp); 802 if ((error = VFS_STATVFS(mp, sp)) != 0) 803 return (error); 804 sp->f_flag = mp->mnt_flag & MNT_VISFLAGMASK; 805 return sunstatfs(sp, (void *)SCARG(uap, buf)); 806 } 807 808 int 809 sunos_sys_fstatfs(struct lwp *l, const struct sunos_sys_fstatfs_args *uap, register_t *retval) 810 { 811 file_t *fp; 812 struct mount *mp; 813 struct statvfs *sp; 814 int error; 815 816 /* fd_getvnode() will use the descriptor for us */ 817 if ((error = fd_getvnode(SCARG(uap, fd), &fp)) != 0) 818 return (error); 819 mp = fp->f_vnode->v_mount; 820 sp = &mp->mnt_stat; 821 if ((error = VFS_STATVFS(mp, sp)) != 0) 822 goto out; 823 sp->f_flag = mp->mnt_flag & MNT_VISFLAGMASK; 824 error = sunstatfs(sp, (void *)SCARG(uap, buf)); 825 out: 826 fd_putfile(SCARG(uap, fd)); 827 return (error); 828 } 829 830 int 831 sunos_sys_exportfs(struct lwp *l, const struct sunos_sys_exportfs_args *uap, register_t *retval) 832 { 833 /* 834 * XXX: should perhaps translate into a mount(2) 835 * with MOUNT_EXPORT? 836 */ 837 return 0; 838 } 839 840 int 841 sunos_sys_mknod(struct lwp *l, const struct sunos_sys_mknod_args *uap, register_t *retval) 842 { 843 struct sys_mkfifo_args fifo_ua; 844 845 if (S_ISFIFO(SCARG(uap, mode))) { 846 SCARG(&fifo_ua, path) = SCARG(uap, path); 847 SCARG(&fifo_ua, mode) = SCARG(uap, mode); 848 return sys_mkfifo(l, &fifo_ua, retval); 849 } 850 851 return compat_50_sys_mknod(l, 852 (const struct compat_50_sys_mknod_args *)uap, retval); 853 } 854 855 #define SUNOS_SC_ARG_MAX 1 856 #define SUNOS_SC_CHILD_MAX 2 857 #define SUNOS_SC_CLK_TCK 3 858 #define SUNOS_SC_NGROUPS_MAX 4 859 #define SUNOS_SC_OPEN_MAX 5 860 #define SUNOS_SC_JOB_CONTROL 6 861 #define SUNOS_SC_SAVED_IDS 7 862 #define SUNOS_SC_VERSION 8 863 864 int 865 sunos_sys_sysconf(struct lwp *l, const struct sunos_sys_sysconf_args *uap, register_t *retval) 866 { 867 868 switch(SCARG(uap, name)) { 869 case SUNOS_SC_ARG_MAX: 870 *retval = ARG_MAX; 871 break; 872 case SUNOS_SC_CHILD_MAX: 873 *retval = maxproc; 874 break; 875 case SUNOS_SC_CLK_TCK: 876 *retval = 60; /* should this be `hz', ie. 100? */ 877 break; 878 case SUNOS_SC_NGROUPS_MAX: 879 *retval = NGROUPS_MAX; 880 break; 881 case SUNOS_SC_OPEN_MAX: 882 *retval = maxfiles; 883 break; 884 case SUNOS_SC_JOB_CONTROL: 885 *retval = 1; 886 break; 887 case SUNOS_SC_SAVED_IDS: 888 #ifdef _POSIX_SAVED_IDS 889 *retval = 1; 890 #else 891 *retval = 0; 892 #endif 893 break; 894 case SUNOS_SC_VERSION: 895 *retval = 198808; 896 break; 897 default: 898 return EINVAL; 899 } 900 return 0; 901 } 902 903 #define SUNOS_RLIMIT_NOFILE 6 /* Other RLIMIT_* are the same */ 904 #define SUNOS_RLIM_NLIMITS 7 905 906 int 907 sunos_sys_getrlimit(struct lwp *l, const struct sunos_sys_getrlimit_args *uap, register_t *retval) 908 { 909 struct compat_43_sys_getrlimit_args ua_43; 910 911 SCARG(&ua_43, which) = SCARG(uap, which); 912 SCARG(&ua_43, rlp) = SCARG(uap, rlp); 913 914 if (SCARG(uap, which) >= SUNOS_RLIM_NLIMITS) 915 return EINVAL; 916 917 if (SCARG(uap, which) == SUNOS_RLIMIT_NOFILE) 918 SCARG(&ua_43, which) = RLIMIT_NOFILE; 919 920 return compat_43_sys_getrlimit(l, &ua_43, retval); 921 } 922 923 int 924 sunos_sys_setrlimit(struct lwp *l, const struct sunos_sys_setrlimit_args *uap, register_t *retval) 925 { 926 struct compat_43_sys_setrlimit_args ua_43; 927 928 SCARG(&ua_43, which) = SCARG(uap, which); 929 SCARG(&ua_43, rlp) = SCARG(uap, rlp); 930 931 if (SCARG(uap, which) >= SUNOS_RLIM_NLIMITS) 932 return EINVAL; 933 934 if (SCARG(uap, which) == SUNOS_RLIMIT_NOFILE) 935 SCARG(&ua_43, which) = RLIMIT_NOFILE; 936 937 return compat_43_sys_setrlimit(l, &ua_43, retval); 938 } 939 940 /* for the m68k machines */ 941 #ifndef PT_GETFPREGS 942 #define PT_GETFPREGS -1 943 #endif 944 #ifndef PT_SETFPREGS 945 #define PT_SETFPREGS -1 946 #endif 947 948 static const int sreq2breq[] = { 949 PT_TRACE_ME, PT_READ_I, PT_READ_D, -1, 950 PT_WRITE_I, PT_WRITE_D, -1, PT_CONTINUE, 951 PT_KILL, -1, PT_ATTACH, PT_DETACH, 952 PT_GETREGS, PT_SETREGS, PT_GETFPREGS, PT_SETFPREGS 953 }; 954 static const int nreqs = sizeof(sreq2breq) / sizeof(sreq2breq[0]); 955 956 int 957 sunos_sys_ptrace(struct lwp *l, const struct sunos_sys_ptrace_args *uap, register_t *retval) 958 { 959 struct sys_ptrace_args pa; 960 int req; 961 962 #define sys_ptrace sysent[SYS_ptrace].sy_call 963 if (sys_ptrace == sys_nosys) 964 return ENOSYS; 965 966 req = SCARG(uap, req); 967 968 if (req < 0 || req >= nreqs) 969 return (EINVAL); 970 971 req = sreq2breq[req]; 972 if (req == -1) 973 return (EINVAL); 974 975 SCARG(&pa, req) = req; 976 SCARG(&pa, pid) = (pid_t)SCARG(uap, pid); 977 SCARG(&pa, addr) = (void *)SCARG(uap, addr); 978 SCARG(&pa, data) = SCARG(uap, data); 979 980 return sys_ptrace(l, &pa, retval); 981 } 982 983 /* 984 * SunOS reboot system call (for compatibility). 985 * Sun lets you pass in a boot string which the PROM 986 * saves and provides to the next boot program. 987 */ 988 989 #define SUNOS_RB_ASKNAME 0x001 990 #define SUNOS_RB_SINGLE 0x002 991 #define SUNOS_RB_NOSYNC 0x004 992 #define SUNOS_RB_HALT 0x008 993 #define SUNOS_RB_DUMP 0x080 994 #define SUNOS_RB_STRING 0x200 995 996 static struct sunos_howto_conv { 997 int sun_howto; 998 int bsd_howto; 999 } sunos_howto_conv[] = { 1000 { SUNOS_RB_ASKNAME, RB_ASKNAME }, 1001 { SUNOS_RB_SINGLE, RB_SINGLE }, 1002 { SUNOS_RB_NOSYNC, RB_NOSYNC }, 1003 { SUNOS_RB_HALT, RB_HALT }, 1004 { SUNOS_RB_DUMP, RB_DUMP }, 1005 { SUNOS_RB_STRING, RB_STRING }, 1006 { 0x000, 0 }, 1007 }; 1008 1009 int 1010 sunos_sys_reboot(struct lwp *l, const struct sunos_sys_reboot_args *uap, register_t *retval) 1011 { 1012 struct sys_reboot_args ua; 1013 struct sunos_howto_conv *convp; 1014 int error, bsd_howto, sun_howto; 1015 char *bootstr; 1016 1017 if ((error = kauth_authorize_system(l->l_cred, KAUTH_SYSTEM_REBOOT, 1018 0, NULL, NULL, NULL)) != 0) 1019 return (error); 1020 1021 /* 1022 * Convert howto bits to BSD format. 1023 */ 1024 sun_howto = SCARG(uap, howto); 1025 bsd_howto = 0; 1026 convp = sunos_howto_conv; 1027 while (convp->sun_howto) { 1028 if (sun_howto & convp->sun_howto) 1029 bsd_howto |= convp->bsd_howto; 1030 convp++; 1031 } 1032 1033 /* 1034 * Sun RB_STRING (Get user supplied bootstring.) 1035 * If the machine supports passing a string to the 1036 * next booted kernel. 1037 */ 1038 if (sun_howto & SUNOS_RB_STRING) { 1039 char bs[128]; 1040 1041 error = copyinstr(SCARG(uap, bootstr), bs, sizeof(bs), 0); 1042 1043 if (error) 1044 bootstr = NULL; 1045 else 1046 bootstr = bs; 1047 } else 1048 bootstr = NULL; 1049 1050 SCARG(&ua, opt) = bsd_howto; 1051 SCARG(&ua, bootstr) = bootstr; 1052 sys_reboot(l, &ua, retval); 1053 return(0); 1054 } 1055 1056 /* 1057 * Generalized interface signal handler, 4.3-compatible. 1058 */ 1059 /* ARGSUSED */ 1060 int 1061 sunos_sys_sigvec(struct lwp *l, const struct sunos_sys_sigvec_args *uap, register_t *retval) 1062 { 1063 /* { 1064 syscallarg(int) signum; 1065 syscallarg(struct sigvec *) nsv; 1066 syscallarg(struct sigvec *) osv; 1067 } */ 1068 struct sigvec nsv, osv; 1069 struct sigaction nsa, osa; 1070 int error; 1071 /*XXX*/extern void compat_43_sigvec_to_sigaction 1072 (const struct sigvec *, struct sigaction *); 1073 /*XXX*/extern void compat_43_sigaction_to_sigvec 1074 (const struct sigaction *, struct sigvec *); 1075 1076 if (SCARG(uap, nsv)) { 1077 error = copyin(SCARG(uap, nsv), &nsv, sizeof(nsv)); 1078 if (error != 0) 1079 return (error); 1080 1081 /* 1082 * SunOS uses the mask 0x0004 as SV_RESETHAND 1083 * meaning: `reset to SIG_DFL on delivery'. 1084 * We support only the bits in: 0xF 1085 * (those bits are the same as ours) 1086 */ 1087 if (nsv.sv_flags & ~0xF) 1088 return (EINVAL); 1089 1090 compat_43_sigvec_to_sigaction(&nsv, &nsa); 1091 } 1092 error = sigaction1(l, SCARG(uap, signum), 1093 SCARG(uap, nsv) ? &nsa : 0, 1094 SCARG(uap, osv) ? &osa : 0, 1095 NULL, 0); 1096 if (error != 0) 1097 return (error); 1098 1099 if (SCARG(uap, osv)) { 1100 compat_43_sigaction_to_sigvec(&osa, &osv); 1101 error = copyout(&osv, SCARG(uap, osv), sizeof(osv)); 1102 if (error != 0) 1103 return (error); 1104 } 1105 1106 return (0); 1107 } 1108