ultrix_misc.c revision 1.78
1 /* $NetBSD: ultrix_misc.c,v 1.78 2002/09/06 13:18:43 gehenna Exp $ */ 2 3 /* 4 * Copyright (c) 1995, 1997 Jonathan Stone (hereinafter referred to as the author) 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Jonathan Stone for 18 * the NetBSD Project. 19 * 4. The name of the author may not be used to endorse or promote products 20 * derived from this software without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE 26 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 27 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 28 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 29 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 31 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 35 /* 36 * Copyright (c) 1992, 1993 37 * The Regents of the University of California. All rights reserved. 38 * 39 * This software was developed by the Computer Systems Engineering group 40 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 41 * contributed to Berkeley. 42 * 43 * All advertising materials mentioning features or use of this software 44 * must display the following acknowledgement: 45 * This product includes software developed by the University of 46 * California, Lawrence Berkeley Laboratory. 47 * 48 * Redistribution and use in source and binary forms, with or without 49 * modification, are permitted provided that the following conditions 50 * are met: 51 * 1. Redistributions of source code must retain the above copyright 52 * notice, this list of conditions and the following disclaimer. 53 * 2. Redistributions in binary form must reproduce the above copyright 54 * notice, this list of conditions and the following disclaimer in the 55 * documentation and/or other materials provided with the distribution. 56 * 3. All advertising materials mentioning features or use of this software 57 * must display the following acknowledgement: 58 * This product includes software developed by the University of 59 * California, Berkeley and its contributors. 60 * 4. Neither the name of the University nor the names of its contributors 61 * may be used to endorse or promote products derived from this software 62 * without specific prior written permission. 63 * 64 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 65 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 66 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 67 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 68 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 69 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 70 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 71 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 72 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 73 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 74 * SUCH DAMAGE. 75 * 76 * 77 * @(#)sun_misc.c 8.1 (Berkeley) 6/18/93 78 * 79 * from: Header: sun_misc.c,v 1.16 93/04/07 02:46:27 torek Exp 80 */ 81 82 #include <sys/cdefs.h> 83 __KERNEL_RCSID(0, "$NetBSD: ultrix_misc.c,v 1.78 2002/09/06 13:18:43 gehenna Exp $"); 84 85 #if defined(_KERNEL_OPT) 86 #include "opt_nfsserver.h" 87 #include "opt_sysv.h" 88 #endif 89 90 #include <sys/cdefs.h> /* RCS ID & Copyright macro defns */ 91 92 /* 93 * Ultrix compatibility module. 94 * 95 * Ultrix system calls that are implemented differently in BSD are 96 * handled here. 97 */ 98 99 #if defined(_KERNEL_OPT) 100 #include "fs_nfs.h" 101 #endif 102 103 #include <sys/param.h> 104 #include <sys/systm.h> 105 #include <sys/namei.h> 106 #include <sys/dirent.h> 107 #include <sys/proc.h> 108 #include <sys/file.h> 109 #include <sys/filedesc.h> 110 #include <sys/kernel.h> 111 #include <sys/exec.h> 112 #include <sys/malloc.h> 113 #include <sys/mbuf.h> 114 #include <sys/mman.h> 115 #include <sys/mount.h> 116 #include <sys/resource.h> 117 #include <sys/resourcevar.h> 118 #include <sys/signal.h> 119 #include <sys/signalvar.h> 120 #include <sys/socket.h> 121 #include <sys/vnode.h> 122 #include <sys/uio.h> 123 #include <sys/wait.h> 124 #include <sys/utsname.h> 125 #include <sys/unistd.h> 126 #include <sys/ipc.h> 127 128 #include <sys/syscallargs.h> 129 130 #include <compat/ultrix/ultrix_syscall.h> 131 #include <compat/ultrix/ultrix_syscallargs.h> 132 #include <compat/common/compat_util.h> 133 134 #include <netinet/in.h> 135 136 #include <miscfs/specfs/specdev.h> 137 138 #include <nfs/rpcv2.h> 139 #include <nfs/nfsproto.h> 140 #include <nfs/nfs.h> 141 142 #include <sys/socketvar.h> /* sosetopt() */ 143 144 #include <compat/ultrix/ultrix_flock.h> 145 146 #ifdef __mips 147 #include <mips/cachectl.h> 148 #endif 149 150 static int ultrix_to_bsd_flock __P((struct ultrix_flock *, struct flock *)); 151 static void bsd_to_ultrix_flock __P((struct flock *, struct ultrix_flock *)); 152 153 extern struct sysent ultrix_sysent[]; 154 extern const char * const ultrix_syscallnames[]; 155 extern char ultrix_sigcode[], ultrix_esigcode[]; 156 #ifdef __HAVE_SYSCALL_INTERN 157 void syscall_intern(struct proc *); 158 #else 159 void syscall __P((void)); 160 #endif 161 162 const struct emul emul_ultrix = { 163 "ultrix", 164 "/emul/ultrix", 165 #ifndef __HAVE_MINIMAL_EMUL 166 0, 167 NULL, 168 ULTRIX_SYS_syscall, 169 ULTRIX_SYS_MAXSYSCALL, 170 #endif 171 ultrix_sysent, 172 ultrix_syscallnames, 173 sendsig, 174 trapsignal, 175 ultrix_sigcode, 176 ultrix_esigcode, 177 setregs, 178 NULL, 179 NULL, 180 NULL, 181 #ifdef __HAVE_SYSCALL_INTERN 182 syscall_intern, 183 #else 184 syscall, 185 #endif 186 }; 187 188 #define GSI_PROG_ENV 1 189 190 int 191 ultrix_sys_getsysinfo(p, v, retval) 192 struct proc *p; 193 void *v; 194 register_t *retval; 195 { 196 struct ultrix_sys_getsysinfo_args *uap = v; 197 static short progenv = 0; 198 199 switch (SCARG(uap, op)) { 200 /* operations implemented: */ 201 case GSI_PROG_ENV: 202 if (SCARG(uap, nbytes) < sizeof(short)) 203 return EINVAL; 204 *retval = 1; 205 return (copyout(&progenv, SCARG(uap, buffer), sizeof(short))); 206 default: 207 *retval = 0; /* info unavail */ 208 return 0; 209 } 210 } 211 212 int 213 ultrix_sys_setsysinfo(p, v, retval) 214 struct proc *p; 215 void *v; 216 register_t *retval; 217 { 218 219 #ifdef notyet 220 struct ultrix_sys_setsysinfo_args *uap = v; 221 #endif 222 223 *retval = 0; 224 return 0; 225 } 226 227 int 228 ultrix_sys_waitpid(p, v, retval) 229 struct proc *p; 230 void *v; 231 register_t *retval; 232 { 233 struct ultrix_sys_waitpid_args *uap = v; 234 struct sys_wait4_args ua; 235 236 SCARG(&ua, pid) = SCARG(uap, pid); 237 SCARG(&ua, status) = SCARG(uap, status); 238 SCARG(&ua, options) = SCARG(uap, options); 239 SCARG(&ua, rusage) = 0; 240 241 return (sys_wait4(p, &ua, retval)); 242 } 243 244 int 245 ultrix_sys_wait3(p, v, retval) 246 struct proc *p; 247 void *v; 248 register_t *retval; 249 { 250 struct ultrix_sys_wait3_args *uap = v; 251 struct sys_wait4_args ua; 252 253 SCARG(&ua, pid) = -1; 254 SCARG(&ua, status) = SCARG(uap, status); 255 SCARG(&ua, options) = SCARG(uap, options); 256 SCARG(&ua, rusage) = SCARG(uap, rusage); 257 258 return (sys_wait4(p, &ua, retval)); 259 } 260 261 /* 262 * Ultrix binaries pass in FD_MAX as the first arg to select(). 263 * On Ultrix, FD_MAX is 4096, which is more than the NetBSD sys_select() 264 * can handle. 265 * Since we can't have more than the (native) FD_MAX descriptors open, 266 * limit nfds to at most FD_MAX. 267 */ 268 int 269 ultrix_sys_select(p, v, retval) 270 struct proc *p; 271 void *v; 272 register_t *retval; 273 { 274 struct sys_select_args *uap = v; 275 struct timeval atv; 276 int error; 277 278 /* Limit number of FDs selected on to the native maximum */ 279 280 if (SCARG(uap, nd) > FD_SETSIZE) 281 SCARG(uap, nd) = FD_SETSIZE; 282 283 /* Check for negative timeval */ 284 if (SCARG(uap, tv)) { 285 error = copyin((caddr_t)SCARG(uap, tv), (caddr_t)&atv, 286 sizeof(atv)); 287 if (error) 288 goto done; 289 #ifdef DEBUG 290 /* Ultrix clients sometimes give negative timeouts? */ 291 if (atv.tv_sec < 0 || atv.tv_usec < 0) 292 printf("ultrix select( %ld, %ld): negative timeout\n", 293 atv.tv_sec, atv.tv_usec); 294 #endif 295 296 } 297 error = sys_select(p, (void*) uap, retval); 298 if (error == EINVAL) 299 printf("ultrix select: bad args?\n"); 300 301 done: 302 return error; 303 } 304 305 #if defined(NFS) 306 int 307 async_daemon(p, v, retval) 308 struct proc *p; 309 void *v; 310 register_t *retval; 311 { 312 struct sys_nfssvc_args ouap; 313 314 SCARG(&ouap, flag) = NFSSVC_BIOD; 315 SCARG(&ouap, argp) = NULL; 316 317 return (sys_nfssvc(p, &ouap, retval)); 318 } 319 #endif /* NFS */ 320 321 322 #define SUN__MAP_NEW 0x80000000 /* if not, old mmap & cannot handle */ 323 324 int 325 ultrix_sys_mmap(p, v, retval) 326 struct proc *p; 327 void *v; 328 register_t *retval; 329 { 330 struct ultrix_sys_mmap_args *uap = v; 331 struct sys_mmap_args ouap; 332 struct filedesc *fdp; 333 struct file *fp; 334 struct vnode *vp; 335 336 /* 337 * Verify the arguments. 338 */ 339 if (SCARG(uap, prot) & ~(PROT_READ|PROT_WRITE|PROT_EXEC)) 340 return (EINVAL); /* XXX still needed? */ 341 342 if ((SCARG(uap, flags) & SUN__MAP_NEW) == 0) 343 return (EINVAL); 344 345 SCARG(&ouap, flags) = SCARG(uap, flags) & ~SUN__MAP_NEW; 346 SCARG(&ouap, addr) = SCARG(uap, addr); 347 348 if ((SCARG(&ouap, flags) & MAP_FIXED) == 0 && 349 SCARG(&ouap, addr) != 0 && 350 SCARG(&ouap, addr) < (void *)round_page((vaddr_t)p->p_vmspace->vm_daddr+MAXDSIZ)) 351 SCARG(&ouap, addr) = (void *)round_page((vaddr_t)p->p_vmspace->vm_daddr+MAXDSIZ); 352 353 SCARG(&ouap, len) = SCARG(uap, len); 354 SCARG(&ouap, prot) = SCARG(uap, prot); 355 SCARG(&ouap, fd) = SCARG(uap, fd); 356 SCARG(&ouap, pos) = SCARG(uap, pos); 357 358 /* 359 * Special case: if fd refers to /dev/zero, map as MAP_ANON. (XXX) 360 */ 361 fdp = p->p_fd; 362 if ((fp = fd_getfile(fdp, SCARG(&ouap, fd))) != NULL && /*XXX*/ 363 fp->f_type == DTYPE_VNODE && /*XXX*/ 364 (vp = (struct vnode *)fp->f_data)->v_type == VCHR && /*XXX*/ 365 vp->v_rdev == zerodev) { /*XXX*/ 366 SCARG(&ouap, flags) |= MAP_ANON; 367 SCARG(&ouap, fd) = -1; 368 } 369 370 return (sys_mmap(p, &ouap, retval)); 371 } 372 373 int 374 ultrix_sys_setsockopt(p, v, retval) 375 struct proc *p; 376 void *v; 377 register_t *retval; 378 { 379 struct ultrix_sys_setsockopt_args *uap = v; 380 struct file *fp; 381 struct mbuf *m = NULL; 382 int error; 383 384 /* getsock() will use the descriptor for us */ 385 if ((error = getsock(p->p_fd, SCARG(uap, s), &fp)) != 0) 386 return (error); 387 #define SO_DONTLINGER (~SO_LINGER) 388 if (SCARG(uap, name) == SO_DONTLINGER) { 389 m = m_get(M_WAIT, MT_SOOPTS); 390 mtod(m, struct linger *)->l_onoff = 0; 391 m->m_len = sizeof(struct linger); 392 error = sosetopt((struct socket *)fp->f_data, SCARG(uap, level), 393 SO_LINGER, m); 394 } 395 if (SCARG(uap, level) == IPPROTO_IP) { 396 #define EMUL_IP_MULTICAST_IF 2 397 #define EMUL_IP_MULTICAST_TTL 3 398 #define EMUL_IP_MULTICAST_LOOP 4 399 #define EMUL_IP_ADD_MEMBERSHIP 5 400 #define EMUL_IP_DROP_MEMBERSHIP 6 401 static int ipoptxlat[] = { 402 IP_MULTICAST_IF, 403 IP_MULTICAST_TTL, 404 IP_MULTICAST_LOOP, 405 IP_ADD_MEMBERSHIP, 406 IP_DROP_MEMBERSHIP 407 }; 408 if (SCARG(uap, name) >= EMUL_IP_MULTICAST_IF && 409 SCARG(uap, name) <= EMUL_IP_DROP_MEMBERSHIP) { 410 SCARG(uap, name) = 411 ipoptxlat[SCARG(uap, name) - EMUL_IP_MULTICAST_IF]; 412 } 413 } 414 if (SCARG(uap, valsize) > MLEN) { 415 error = EINVAL; 416 goto out; 417 } 418 if (SCARG(uap, val)) { 419 m = m_get(M_WAIT, MT_SOOPTS); 420 error = copyin(SCARG(uap, val), mtod(m, caddr_t), 421 (u_int)SCARG(uap, valsize)); 422 if (error) { 423 (void) m_free(m); 424 goto out; 425 } 426 m->m_len = SCARG(uap, valsize); 427 } 428 error = sosetopt((struct socket *)fp->f_data, SCARG(uap, level), 429 SCARG(uap, name), m); 430 out: 431 FILE_UNUSE(fp, p); 432 return (error); 433 } 434 435 #define ULTRIX__SYS_NMLN 32 436 437 struct ultrix_utsname { 438 char sysname[ULTRIX__SYS_NMLN]; 439 char nodename[ULTRIX__SYS_NMLN]; 440 char release[ULTRIX__SYS_NMLN]; 441 char version[ULTRIX__SYS_NMLN]; 442 char machine[ULTRIX__SYS_NMLN]; 443 }; 444 445 int 446 ultrix_sys_uname(p, v, retval) 447 struct proc *p; 448 void *v; 449 register_t *retval; 450 { 451 struct ultrix_sys_uname_args *uap = v; 452 struct ultrix_utsname sut; 453 const char *cp; 454 char *dp, *ep; 455 456 memset(&sut, 0, sizeof(sut)); 457 458 strncpy(sut.sysname, ostype, sizeof(sut.sysname) - 1); 459 strncpy(sut.nodename, hostname, sizeof(sut.nodename) - 1); 460 strncpy(sut.release, osrelease, sizeof(sut.release) - 1); 461 dp = sut.version; 462 ep = &sut.version[sizeof(sut.version) - 1]; 463 for (cp = version; *cp && *cp != '('; cp++) 464 ; 465 for (cp++; *cp && *cp != ')' && dp < ep; cp++) 466 *dp++ = *cp; 467 for (; *cp && *cp != '#'; cp++) 468 ; 469 for (; *cp && *cp != ':' && dp < ep; cp++) 470 *dp++ = *cp; 471 *dp = '\0'; 472 strncpy(sut.machine, machine, sizeof(sut.machine) - 1); 473 474 return copyout((caddr_t)&sut, (caddr_t)SCARG(uap, name), 475 sizeof(struct ultrix_utsname)); 476 } 477 478 int 479 ultrix_sys_setpgrp(p, v, retval) 480 struct proc *p; 481 void *v; 482 register_t *retval; 483 { 484 struct ultrix_sys_setpgrp_args *uap = v; 485 486 /* 487 * difference to our setpgid call is to include backwards 488 * compatibility to pre-setsid() binaries. Do setsid() 489 * instead of setpgid() in those cases where the process 490 * tries to create a new session the old way. 491 */ 492 if (!SCARG(uap, pgid) && 493 (!SCARG(uap, pid) || SCARG(uap, pid) == p->p_pid)) 494 return sys_setsid(p, uap, retval); 495 else 496 return sys_setpgid(p, uap, retval); 497 } 498 499 #if defined (NFSSERVER) 500 int 501 ultrix_sys_nfssvc(p, v, retval) 502 struct proc *p; 503 void *v; 504 register_t *retval; 505 { 506 507 #if 0 /* XXX */ 508 struct ultrix_sys_nfssvc_args *uap = v; 509 struct emul *e = p->p_emul; 510 struct sys_nfssvc_args outuap; 511 struct sockaddr sa; 512 int error; 513 caddr_t sg = stackgap_init(p, 0); 514 515 memset(&outuap, 0, sizeof outuap); 516 SCARG(&outuap, fd) = SCARG(uap, fd); 517 SCARG(&outuap, mskval) = stackgap_alloc(p, &sg, sizeof sa); 518 SCARG(&outuap, msklen) = sizeof sa; 519 SCARG(&outuap, mtchval) = stackgap_alloc(p, &sg, sizeof sa); 520 SCARG(&outuap, mtchlen) = sizeof sa; 521 522 memset(&sa, 0, sizeof sa); 523 if (error = copyout(&sa, SCARG(&outuap, mskval), SCARG(&outuap, msklen))) 524 return (error); 525 if (error = copyout(&sa, SCARG(&outuap, mtchval), SCARG(&outuap, mtchlen))) 526 return (error); 527 528 return nfssvc(p, &outuap, retval); 529 #else 530 return (ENOSYS); 531 #endif 532 } 533 #endif /* NFSSERVER */ 534 535 struct ultrix_ustat { 536 daddr_t f_tfree; /* total free */ 537 ino_t f_tinode; /* total inodes free */ 538 char f_fname[6]; /* filsys name */ 539 char f_fpack[6]; /* filsys pack name */ 540 }; 541 542 int 543 ultrix_sys_ustat(p, v, retval) 544 struct proc *p; 545 void *v; 546 register_t *retval; 547 { 548 struct ultrix_sys_ustat_args *uap = v; 549 struct ultrix_ustat us; 550 int error; 551 552 memset(&us, 0, sizeof us); 553 554 /* 555 * XXX: should set f_tfree and f_tinode at least 556 * How do we translate dev -> fstat? (and then to ultrix_ustat) 557 */ 558 559 if ((error = copyout(&us, SCARG(uap, buf), sizeof us)) != 0) 560 return (error); 561 return 0; 562 } 563 564 int 565 ultrix_sys_quotactl(p, v, retval) 566 struct proc *p; 567 void *v; 568 register_t *retval; 569 { 570 571 #ifdef notyet 572 struct ultrix_sys_quotactl_args *uap = v; 573 #endif 574 575 return EINVAL; 576 } 577 578 int 579 ultrix_sys_vhangup(p, v, retval) 580 struct proc *p; 581 void *v; 582 register_t *retval; 583 { 584 585 return 0; 586 } 587 588 589 /* 590 * RISC Ultrix cache control syscalls 591 */ 592 #ifdef __mips 593 int 594 ultrix_sys_cacheflush(p, v, retval) 595 struct proc *p; 596 void *v; 597 register_t *retval; 598 { 599 struct ultrix_sys_cacheflush_args /* { 600 syscallarg(void *) addr; 601 syscallarg(int) nbytes; 602 syscallarg(int) flag; 603 } */ *uap = v; 604 vaddr_t va = (vaddr_t)SCARG(uap, addr); 605 int nbytes = SCARG(uap, nbytes); 606 int whichcache = SCARG(uap, whichcache); 607 608 return (mips_user_cacheflush(p, va, nbytes, whichcache)); 609 } 610 611 612 int 613 ultrix_sys_cachectl(p, v, retval) 614 struct proc *p; 615 void *v; 616 register_t *retval; 617 { 618 struct ultrix_sys_cachectl_args /* { 619 syscallarg(void *) addr; 620 syscallarg(int) nbytes; 621 syscallarg(int) cacheop; 622 } */ *uap = v; 623 vaddr_t va = (vaddr_t)SCARG(uap, addr); 624 int nbytes = SCARG(uap, nbytes); 625 int cacheop = SCARG(uap, cacheop); 626 627 return mips_user_cachectl(p, va, nbytes, cacheop); 628 } 629 630 #endif /* __mips */ 631 632 633 int 634 ultrix_sys_exportfs(p, v, retval) 635 struct proc *p; 636 void *v; 637 register_t *retval; 638 { 639 #ifdef notyet 640 struct ultrix_sys_exportfs_args *uap = v; 641 #endif 642 643 /* 644 * XXX: should perhaps translate into a mount(2) 645 * with MOUNT_EXPORT? 646 */ 647 return 0; 648 } 649 650 int 651 ultrix_sys_sigpending(p, v, retval) 652 struct proc *p; 653 void *v; 654 register_t *retval; 655 { 656 struct ultrix_sys_sigpending_args *uap = v; 657 sigset_t ss; 658 int mask; 659 660 sigpending1(p, &ss); 661 mask = ss.__bits[0]; 662 663 return (copyout((caddr_t)&mask, (caddr_t)SCARG(uap, mask), sizeof(int))); 664 } 665 666 int 667 ultrix_sys_sigreturn(p, v, retval) 668 struct proc *p; 669 void *v; 670 register_t *retval; 671 { 672 struct ultrix_sys_sigreturn_args *uap = v; 673 674 /* struct sigcontext13 is close enough to Ultrix */ 675 676 return (compat_13_sys_sigreturn(p, uap, retval)); 677 } 678 679 int 680 ultrix_sys_sigcleanup(p, v, retval) 681 struct proc *p; 682 void *v; 683 register_t *retval; 684 { 685 struct ultrix_sys_sigcleanup_args *uap = v; 686 687 /* struct sigcontext13 is close enough to Ultrix */ 688 689 return (compat_13_sys_sigreturn(p, uap, retval)); 690 } 691 692 int 693 ultrix_sys_sigsuspend(p, v, retval) 694 struct proc *p; 695 void *v; 696 register_t *retval; 697 { 698 struct ultrix_sys_sigsuspend_args *uap = v; 699 int mask = SCARG(uap, mask); 700 sigset_t ss; 701 702 ss.__bits[0] = mask; 703 ss.__bits[1] = 0; 704 ss.__bits[2] = 0; 705 ss.__bits[3] = 0; 706 707 return (sigsuspend1(p, &ss)); 708 } 709 710 #define ULTRIX_SV_ONSTACK 0x0001 /* take signal on signal stack */ 711 #define ULTRIX_SV_INTERRUPT 0x0002 /* do not restart system on signal return */ 712 #define ULTRIX_SV_OLDSIG 0x1000 /* Emulate old signal() for POSIX */ 713 714 int 715 ultrix_sys_sigvec(p, v, retval) 716 struct proc *p; 717 void *v; 718 register_t *retval; 719 { 720 struct ultrix_sys_sigvec_args *uap = v; 721 struct sigvec nsv, osv; 722 struct sigaction nsa, osa; 723 int error; 724 725 if (SCARG(uap, nsv)) { 726 error = copyin(SCARG(uap, nsv), &nsv, sizeof(nsv)); 727 if (error) 728 return (error); 729 nsa.sa_handler = nsv.sv_handler; 730 #if 0 /* documentation */ 731 /* ONSTACK is identical */ 732 nsa.sa_flags = nsv.sv_flags & ULTRIX_SV_ONSTACK; 733 if ((nsv.sv_flags & ULTRIX_SV_OLDSIG) 734 /* old signal() - always restart */ 735 || (!(nsv.sv_flags & ULTRIX_SV_INTERRUPT)) 736 /* inverted meaning (same bit) */ 737 ) 738 nsa.sa_flags |= SA_RESTART; 739 #else /* optimized - assuming ULTRIX_SV_OLDSIG=>!ULTRIX_SV_INTERRUPT */ 740 nsa.sa_flags = nsv.sv_flags & ~ULTRIX_SV_OLDSIG; 741 nsa.sa_flags ^= SA_RESTART; 742 #endif 743 native_sigset13_to_sigset(&nsv.sv_mask, &nsa.sa_mask); 744 } 745 error = sigaction1(p, SCARG(uap, signum), 746 SCARG(uap, nsv) ? &nsa : 0, SCARG(uap, osv) ? &osa : 0, 747 NULL, 0); 748 if (error) 749 return (error); 750 if (SCARG(uap, osv)) { 751 osv.sv_handler = osa.sa_handler; 752 osv.sv_flags = osa.sa_flags ^ SA_RESTART; 753 osv.sv_flags &= (ULTRIX_SV_ONSTACK | ULTRIX_SV_INTERRUPT); 754 native_sigset_to_sigset13(&osa.sa_mask, &osv.sv_mask); 755 error = copyout(&osv, SCARG(uap, osv), sizeof(osv)); 756 if (error) 757 return (error); 758 } 759 return (0); 760 } 761 762 int 763 ultrix_sys_shmsys(p, v, retval) 764 struct proc *p; 765 void *v; 766 register_t *retval; 767 { 768 769 #ifdef SYSVSHM 770 771 /* Ultrix SVSHM weirndess: */ 772 struct ultrix_sys_shmsys_args *uap = v; 773 struct sys_shmat_args shmat_args; 774 struct compat_14_sys_shmctl_args shmctl_args; 775 struct sys_shmdt_args shmdt_args; 776 struct sys_shmget_args shmget_args; 777 778 779 switch (SCARG(uap, shmop)) { 780 case 0: /* Ultrix shmat() */ 781 SCARG(&shmat_args, shmid) = SCARG(uap, a2); 782 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a3); 783 SCARG(&shmat_args, shmflg) = SCARG(uap, a4); 784 return (sys_shmat(p, &shmat_args, retval)); 785 786 case 1: /* Ultrix shmctl() */ 787 SCARG(&shmctl_args, shmid) = SCARG(uap, a2); 788 SCARG(&shmctl_args, cmd) = SCARG(uap, a3); 789 SCARG(&shmctl_args, buf) = (struct shmid_ds14 *)SCARG(uap, a4); 790 return (compat_14_sys_shmctl(p, &shmctl_args, retval)); 791 792 case 2: /* Ultrix shmdt() */ 793 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a2); 794 return (sys_shmdt(p, &shmdt_args, retval)); 795 796 case 3: /* Ultrix shmget() */ 797 SCARG(&shmget_args, key) = SCARG(uap, a2); 798 SCARG(&shmget_args, size) = SCARG(uap, a3); 799 SCARG(&shmget_args, shmflg) = SCARG(uap, a4) 800 & (IPC_CREAT|IPC_EXCL|IPC_NOWAIT); 801 return (sys_shmget(p, &shmget_args, retval)); 802 803 default: 804 return (EINVAL); 805 } 806 #else 807 return (EOPNOTSUPP); 808 #endif /* SYSVSHM */ 809 } 810 811 static int 812 ultrix_to_bsd_flock(ufl, fl) 813 struct ultrix_flock *ufl; 814 struct flock *fl; 815 { 816 817 fl->l_start = ufl->l_start; 818 fl->l_len = ufl->l_len; 819 fl->l_pid = ufl->l_pid; 820 fl->l_whence = ufl->l_whence; 821 822 switch (ufl->l_type) { 823 case ULTRIX_F_RDLCK: 824 fl->l_type = F_RDLCK; 825 break; 826 case ULTRIX_F_WRLCK: 827 fl->l_type = F_WRLCK; 828 break; 829 case ULTRIX_F_UNLCK: 830 fl->l_type = F_UNLCK; 831 break; 832 default: 833 return (EINVAL); 834 } 835 836 return (0); 837 } 838 839 static void 840 bsd_to_ultrix_flock(fl, ufl) 841 struct flock *fl; 842 struct ultrix_flock *ufl; 843 { 844 845 ufl->l_start = fl->l_start; 846 ufl->l_len = fl->l_len; 847 ufl->l_pid = fl->l_pid; 848 ufl->l_whence = fl->l_whence; 849 850 switch (fl->l_type) { 851 case F_RDLCK: 852 ufl->l_type = ULTRIX_F_RDLCK; 853 break; 854 case F_WRLCK: 855 ufl->l_type = ULTRIX_F_WRLCK; 856 break; 857 case F_UNLCK: 858 ufl->l_type = ULTRIX_F_UNLCK; 859 break; 860 } 861 } 862 863 int 864 ultrix_sys_fcntl(p, v, retval) 865 struct proc *p; 866 void *v; 867 register_t *retval; 868 { 869 struct ultrix_sys_fcntl_args *uap = v; 870 int error; 871 struct ultrix_flock ufl; 872 struct flock fl, *flp; 873 caddr_t sg; 874 struct sys_fcntl_args *args, fca; 875 876 switch (SCARG(uap, cmd)) { 877 case F_GETLK: 878 case F_SETLK: 879 case F_SETLKW: 880 error = copyin(SCARG(uap, arg), &ufl, sizeof(ufl)); 881 if (error) 882 return (error); 883 error = ultrix_to_bsd_flock(&ufl, &fl); 884 if (error) 885 return (error); 886 sg = stackgap_init(p, 0); 887 flp = (struct flock *)stackgap_alloc(p, &sg, sizeof(*flp)); 888 error = copyout(&fl, flp, sizeof(*flp)); 889 if (error) 890 return (error); 891 892 SCARG(&fca, fd) = SCARG(uap, fd); 893 SCARG(&fca, cmd) = SCARG(uap, cmd); 894 SCARG(&fca, arg) = flp; 895 args = &fca; 896 break; 897 default: 898 args = v; 899 break; 900 } 901 902 error = sys_fcntl(p, args, retval); 903 if (error) 904 return (error); 905 906 switch (SCARG(uap, cmd)) { 907 case F_GETLK: 908 error = copyin(flp, &fl, sizeof(fl)); 909 if (error) 910 return (error); 911 bsd_to_ultrix_flock(&fl, &ufl); 912 error = copyout(&ufl, SCARG(uap, arg), sizeof(ufl)); 913 break; 914 } 915 916 return (error); 917 } 918
Indexes created Tue Sep 23 14:10:03 GMT 2025