ultrix_misc.c revision 1.87
1 /* $NetBSD: ultrix_misc.c,v 1.87 2003/08/24 17:52:46 chs 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. Neither the name of the University nor the names of its contributors 57 * may be used to endorse or promote products derived from this software 58 * without specific prior written permission. 59 * 60 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 61 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 62 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 63 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 64 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 65 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 66 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 67 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 68 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 69 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 70 * SUCH DAMAGE. 71 * 72 * 73 * @(#)sun_misc.c 8.1 (Berkeley) 6/18/93 74 * 75 * from: Header: sun_misc.c,v 1.16 93/04/07 02:46:27 torek Exp 76 */ 77 78 #include <sys/cdefs.h> 79 __KERNEL_RCSID(0, "$NetBSD: ultrix_misc.c,v 1.87 2003/08/24 17:52:46 chs Exp $"); 80 81 #if defined(_KERNEL_OPT) 82 #include "opt_nfsserver.h" 83 #include "opt_sysv.h" 84 #endif 85 86 #include <sys/cdefs.h> /* RCS ID & Copyright macro defns */ 87 88 /* 89 * Ultrix compatibility module. 90 * 91 * Ultrix system calls that are implemented differently in BSD are 92 * handled here. 93 */ 94 95 #if defined(_KERNEL_OPT) 96 #include "fs_nfs.h" 97 #endif 98 99 #include <sys/param.h> 100 #include <sys/systm.h> 101 #include <sys/namei.h> 102 #include <sys/dirent.h> 103 #include <sys/proc.h> 104 #include <sys/file.h> 105 #include <sys/filedesc.h> 106 #include <sys/kernel.h> 107 #include <sys/exec.h> 108 #include <sys/malloc.h> 109 #include <sys/mbuf.h> 110 #include <sys/mman.h> 111 #include <sys/mount.h> 112 #include <sys/resource.h> 113 #include <sys/resourcevar.h> 114 #include <sys/signal.h> 115 #include <sys/signalvar.h> 116 #include <sys/socket.h> 117 #include <sys/vnode.h> 118 #include <sys/uio.h> 119 #include <sys/wait.h> 120 #include <sys/utsname.h> 121 #include <sys/unistd.h> 122 #include <sys/ipc.h> 123 124 #include <sys/sa.h> 125 #include <sys/syscallargs.h> 126 127 #include <compat/ultrix/ultrix_syscall.h> 128 #include <compat/ultrix/ultrix_syscallargs.h> 129 #include <compat/common/compat_util.h> 130 131 #include <netinet/in.h> 132 133 #include <miscfs/specfs/specdev.h> 134 135 #include <nfs/rpcv2.h> 136 #include <nfs/nfsproto.h> 137 #include <nfs/nfs.h> 138 139 #include <sys/socketvar.h> /* sosetopt() */ 140 141 #include <compat/ultrix/ultrix_flock.h> 142 143 #ifdef __mips 144 #include <mips/cachectl.h> 145 #endif 146 147 static int ultrix_to_bsd_flock __P((struct ultrix_flock *, struct flock *)); 148 static void bsd_to_ultrix_flock __P((struct flock *, struct ultrix_flock *)); 149 150 extern struct sysent ultrix_sysent[]; 151 extern const char * const ultrix_syscallnames[]; 152 extern char ultrix_sigcode[], ultrix_esigcode[]; 153 #ifdef __HAVE_SYSCALL_INTERN 154 void syscall_intern(struct proc *); 155 #else 156 void syscall __P((void)); 157 #endif 158 159 struct uvm_object *emul_ultrix_object; 160 161 const struct emul emul_ultrix = { 162 "ultrix", 163 "/emul/ultrix", 164 #ifndef __HAVE_MINIMAL_EMUL 165 0, 166 NULL, 167 ULTRIX_SYS_syscall, 168 ULTRIX_SYS_NSYSENT, 169 #endif 170 ultrix_sysent, 171 ultrix_syscallnames, 172 sendsig, 173 trapsignal, 174 ultrix_sigcode, 175 ultrix_esigcode, 176 &emul_ultrix_object, 177 setregs, 178 NULL, 179 NULL, 180 NULL, 181 #ifdef __HAVE_SYSCALL_INTERN 182 syscall_intern, 183 #else 184 syscall, 185 #endif 186 NULL, 187 NULL, 188 }; 189 190 #define GSI_PROG_ENV 1 191 192 int 193 ultrix_sys_getsysinfo(l, v, retval) 194 struct lwp *l; 195 void *v; 196 register_t *retval; 197 { 198 struct ultrix_sys_getsysinfo_args *uap = v; 199 static short progenv = 0; 200 201 switch (SCARG(uap, op)) { 202 /* operations implemented: */ 203 case GSI_PROG_ENV: 204 if (SCARG(uap, nbytes) < sizeof(short)) 205 return EINVAL; 206 *retval = 1; 207 return (copyout(&progenv, SCARG(uap, buffer), sizeof(short))); 208 default: 209 *retval = 0; /* info unavail */ 210 return 0; 211 } 212 } 213 214 int 215 ultrix_sys_setsysinfo(l, v, retval) 216 struct lwp *l; 217 void *v; 218 register_t *retval; 219 { 220 221 #ifdef notyet 222 struct ultrix_sys_setsysinfo_args *uap = v; 223 #endif 224 225 *retval = 0; 226 return 0; 227 } 228 229 int 230 ultrix_sys_waitpid(l, v, retval) 231 struct lwp *l; 232 void *v; 233 register_t *retval; 234 { 235 struct ultrix_sys_waitpid_args *uap = v; 236 struct sys_wait4_args ua; 237 238 SCARG(&ua, pid) = SCARG(uap, pid); 239 SCARG(&ua, status) = SCARG(uap, status); 240 SCARG(&ua, options) = SCARG(uap, options); 241 SCARG(&ua, rusage) = 0; 242 243 return (sys_wait4(l, &ua, retval)); 244 } 245 246 int 247 ultrix_sys_wait3(l, v, retval) 248 struct lwp *l; 249 void *v; 250 register_t *retval; 251 { 252 struct ultrix_sys_wait3_args *uap = v; 253 struct sys_wait4_args ua; 254 255 SCARG(&ua, pid) = -1; 256 SCARG(&ua, status) = SCARG(uap, status); 257 SCARG(&ua, options) = SCARG(uap, options); 258 SCARG(&ua, rusage) = SCARG(uap, rusage); 259 260 return (sys_wait4(l, &ua, retval)); 261 } 262 263 /* 264 * Ultrix binaries pass in FD_MAX as the first arg to select(). 265 * On Ultrix, FD_MAX is 4096, which is more than the NetBSD sys_select() 266 * can handle. 267 * Since we can't have more than the (native) FD_MAX descriptors open, 268 * limit nfds to at most FD_MAX. 269 */ 270 int 271 ultrix_sys_select(l, v, retval) 272 struct lwp *l; 273 void *v; 274 register_t *retval; 275 { 276 struct sys_select_args *uap = v; 277 struct timeval atv; 278 int error; 279 280 /* Limit number of FDs selected on to the native maximum */ 281 282 if (SCARG(uap, nd) > FD_SETSIZE) 283 SCARG(uap, nd) = FD_SETSIZE; 284 285 /* Check for negative timeval */ 286 if (SCARG(uap, tv)) { 287 error = copyin((caddr_t)SCARG(uap, tv), (caddr_t)&atv, 288 sizeof(atv)); 289 if (error) 290 goto done; 291 #ifdef DEBUG 292 /* Ultrix clients sometimes give negative timeouts? */ 293 if (atv.tv_sec < 0 || atv.tv_usec < 0) 294 printf("ultrix select( %ld, %ld): negative timeout\n", 295 atv.tv_sec, atv.tv_usec); 296 #endif 297 298 } 299 error = sys_select(l, (void*) uap, retval); 300 if (error == EINVAL) 301 printf("ultrix select: bad args?\n"); 302 303 done: 304 return error; 305 } 306 307 #if defined(NFS) 308 int 309 async_daemon(l, v, retval) 310 struct lwp *l; 311 void *v; 312 register_t *retval; 313 { 314 struct sys_nfssvc_args ouap; 315 316 SCARG(&ouap, flag) = NFSSVC_BIOD; 317 SCARG(&ouap, argp) = NULL; 318 319 return (sys_nfssvc(l, &ouap, retval)); 320 } 321 #endif /* NFS */ 322 323 324 #define SUN__MAP_NEW 0x80000000 /* if not, old mmap & cannot handle */ 325 326 int 327 ultrix_sys_mmap(l, v, retval) 328 struct lwp *l; 329 void *v; 330 register_t *retval; 331 { 332 struct ultrix_sys_mmap_args *uap = v; 333 struct sys_mmap_args ouap; 334 335 /* 336 * Verify the arguments. 337 */ 338 if (SCARG(uap, prot) & ~(PROT_READ|PROT_WRITE|PROT_EXEC)) 339 return (EINVAL); /* XXX still needed? */ 340 341 if ((SCARG(uap, flags) & SUN__MAP_NEW) == 0) 342 return (EINVAL); 343 344 SCARG(&ouap, flags) = SCARG(uap, flags) & ~SUN__MAP_NEW; 345 SCARG(&ouap, addr) = SCARG(uap, addr); 346 SCARG(&ouap, len) = SCARG(uap, len); 347 SCARG(&ouap, prot) = SCARG(uap, prot); 348 SCARG(&ouap, fd) = SCARG(uap, fd); 349 SCARG(&ouap, pos) = SCARG(uap, pos); 350 351 return (sys_mmap(l, &ouap, retval)); 352 } 353 354 int 355 ultrix_sys_setsockopt(l, v, retval) 356 struct lwp *l; 357 void *v; 358 register_t *retval; 359 { 360 struct ultrix_sys_setsockopt_args *uap = v; 361 struct proc *p = l->l_proc; 362 struct file *fp; 363 struct mbuf *m = NULL; 364 int error; 365 366 /* getsock() will use the descriptor for us */ 367 if ((error = getsock(p->p_fd, SCARG(uap, s), &fp)) != 0) 368 return (error); 369 #define SO_DONTLINGER (~SO_LINGER) 370 if (SCARG(uap, name) == SO_DONTLINGER) { 371 m = m_get(M_WAIT, MT_SOOPTS); 372 mtod(m, struct linger *)->l_onoff = 0; 373 m->m_len = sizeof(struct linger); 374 error = sosetopt((struct socket *)fp->f_data, SCARG(uap, level), 375 SO_LINGER, m); 376 } 377 if (SCARG(uap, level) == IPPROTO_IP) { 378 #define EMUL_IP_MULTICAST_IF 2 379 #define EMUL_IP_MULTICAST_TTL 3 380 #define EMUL_IP_MULTICAST_LOOP 4 381 #define EMUL_IP_ADD_MEMBERSHIP 5 382 #define EMUL_IP_DROP_MEMBERSHIP 6 383 static int ipoptxlat[] = { 384 IP_MULTICAST_IF, 385 IP_MULTICAST_TTL, 386 IP_MULTICAST_LOOP, 387 IP_ADD_MEMBERSHIP, 388 IP_DROP_MEMBERSHIP 389 }; 390 if (SCARG(uap, name) >= EMUL_IP_MULTICAST_IF && 391 SCARG(uap, name) <= EMUL_IP_DROP_MEMBERSHIP) { 392 SCARG(uap, name) = 393 ipoptxlat[SCARG(uap, name) - EMUL_IP_MULTICAST_IF]; 394 } 395 } 396 if (SCARG(uap, valsize) > MLEN) { 397 error = EINVAL; 398 goto out; 399 } 400 if (SCARG(uap, val)) { 401 m = m_get(M_WAIT, MT_SOOPTS); 402 error = copyin(SCARG(uap, val), mtod(m, caddr_t), 403 (u_int)SCARG(uap, valsize)); 404 if (error) { 405 (void) m_free(m); 406 goto out; 407 } 408 m->m_len = SCARG(uap, valsize); 409 } 410 error = sosetopt((struct socket *)fp->f_data, SCARG(uap, level), 411 SCARG(uap, name), m); 412 out: 413 FILE_UNUSE(fp, p); 414 return (error); 415 } 416 417 #define ULTRIX__SYS_NMLN 32 418 419 struct ultrix_utsname { 420 char sysname[ULTRIX__SYS_NMLN]; 421 char nodename[ULTRIX__SYS_NMLN]; 422 char release[ULTRIX__SYS_NMLN]; 423 char version[ULTRIX__SYS_NMLN]; 424 char machine[ULTRIX__SYS_NMLN]; 425 }; 426 427 int 428 ultrix_sys_uname(l, v, retval) 429 struct lwp *l; 430 void *v; 431 register_t *retval; 432 { 433 struct ultrix_sys_uname_args *uap = v; 434 struct ultrix_utsname sut; 435 const char *cp; 436 char *dp, *ep; 437 438 memset(&sut, 0, sizeof(sut)); 439 440 strncpy(sut.sysname, ostype, sizeof(sut.sysname) - 1); 441 strncpy(sut.nodename, hostname, sizeof(sut.nodename) - 1); 442 strncpy(sut.release, osrelease, sizeof(sut.release) - 1); 443 dp = sut.version; 444 ep = &sut.version[sizeof(sut.version) - 1]; 445 for (cp = version; *cp && *cp != '('; cp++) 446 ; 447 for (cp++; *cp && *cp != ')' && dp < ep; cp++) 448 *dp++ = *cp; 449 for (; *cp && *cp != '#'; cp++) 450 ; 451 for (; *cp && *cp != ':' && dp < ep; cp++) 452 *dp++ = *cp; 453 *dp = '\0'; 454 strncpy(sut.machine, machine, sizeof(sut.machine) - 1); 455 456 return copyout((caddr_t)&sut, (caddr_t)SCARG(uap, name), 457 sizeof(struct ultrix_utsname)); 458 } 459 460 int 461 ultrix_sys_setpgrp(l, v, retval) 462 struct lwp *l; 463 void *v; 464 register_t *retval; 465 { 466 struct ultrix_sys_setpgrp_args *uap = v; 467 struct proc *p = l->l_proc; 468 469 /* 470 * difference to our setpgid call is to include backwards 471 * compatibility to pre-setsid() binaries. Do setsid() 472 * instead of setpgid() in those cases where the process 473 * tries to create a new session the old way. 474 */ 475 if (!SCARG(uap, pgid) && 476 (!SCARG(uap, pid) || SCARG(uap, pid) == p->p_pid)) 477 return sys_setsid(l, uap, retval); 478 else 479 return sys_setpgid(l, uap, retval); 480 } 481 482 #if defined (NFSSERVER) 483 int 484 ultrix_sys_nfssvc(l, v, retval) 485 struct lwp *l; 486 void *v; 487 register_t *retval; 488 { 489 490 #if 0 /* XXX */ 491 struct ultrix_sys_nfssvc_args *uap = v; 492 struct emul *e = p->p_emul; 493 struct sys_nfssvc_args outuap; 494 struct sockaddr sa; 495 int error; 496 caddr_t sg = stackgap_init(p, 0); 497 498 memset(&outuap, 0, sizeof outuap); 499 SCARG(&outuap, fd) = SCARG(uap, fd); 500 SCARG(&outuap, mskval) = stackgap_alloc(p, &sg, sizeof sa); 501 SCARG(&outuap, msklen) = sizeof sa; 502 SCARG(&outuap, mtchval) = stackgap_alloc(p, &sg, sizeof sa); 503 SCARG(&outuap, mtchlen) = sizeof sa; 504 505 memset(&sa, 0, sizeof sa); 506 if (error = copyout(&sa, SCARG(&outuap, mskval), SCARG(&outuap, msklen))) 507 return (error); 508 if (error = copyout(&sa, SCARG(&outuap, mtchval), SCARG(&outuap, mtchlen))) 509 return (error); 510 511 return nfssvc(l, &outuap, retval); 512 #else 513 return (ENOSYS); 514 #endif 515 } 516 #endif /* NFSSERVER */ 517 518 struct ultrix_ustat { 519 daddr_t f_tfree; /* total free */ 520 ino_t f_tinode; /* total inodes free */ 521 char f_fname[6]; /* filsys name */ 522 char f_fpack[6]; /* filsys pack name */ 523 }; 524 525 int 526 ultrix_sys_ustat(l, v, retval) 527 struct lwp *l; 528 void *v; 529 register_t *retval; 530 { 531 struct ultrix_sys_ustat_args *uap = v; 532 struct ultrix_ustat us; 533 int error; 534 535 memset(&us, 0, sizeof us); 536 537 /* 538 * XXX: should set f_tfree and f_tinode at least 539 * How do we translate dev -> fstat? (and then to ultrix_ustat) 540 */ 541 542 if ((error = copyout(&us, SCARG(uap, buf), sizeof us)) != 0) 543 return (error); 544 return 0; 545 } 546 547 int 548 ultrix_sys_quotactl(l, v, retval) 549 struct lwp *l; 550 void *v; 551 register_t *retval; 552 { 553 554 #ifdef notyet 555 struct ultrix_sys_quotactl_args *uap = v; 556 #endif 557 558 return EINVAL; 559 } 560 561 int 562 ultrix_sys_vhangup(l, v, retval) 563 struct lwp *l; 564 void *v; 565 register_t *retval; 566 { 567 568 return 0; 569 } 570 571 572 /* 573 * RISC Ultrix cache control syscalls 574 */ 575 #ifdef __mips 576 int 577 ultrix_sys_cacheflush(l, v, retval) 578 struct lwp *l; 579 void *v; 580 register_t *retval; 581 { 582 struct ultrix_sys_cacheflush_args /* { 583 syscallarg(void *) addr; 584 syscallarg(int) nbytes; 585 syscallarg(int) flag; 586 } */ *uap = v; 587 struct proc *p = l->l_proc; 588 vaddr_t va = (vaddr_t)SCARG(uap, addr); 589 int nbytes = SCARG(uap, nbytes); 590 int whichcache = SCARG(uap, whichcache); 591 592 return (mips_user_cacheflush(p, va, nbytes, whichcache)); 593 } 594 595 596 int 597 ultrix_sys_cachectl(l, v, retval) 598 struct lwp *l; 599 void *v; 600 register_t *retval; 601 { 602 struct ultrix_sys_cachectl_args /* { 603 syscallarg(void *) addr; 604 syscallarg(int) nbytes; 605 syscallarg(int) cacheop; 606 } */ *uap = v; 607 struct proc *p = l->l_proc; 608 vaddr_t va = (vaddr_t)SCARG(uap, addr); 609 int nbytes = SCARG(uap, nbytes); 610 int cacheop = SCARG(uap, cacheop); 611 612 return mips_user_cachectl(p, va, nbytes, cacheop); 613 } 614 615 #endif /* __mips */ 616 617 618 int 619 ultrix_sys_exportfs(l, v, retval) 620 struct lwp *l; 621 void *v; 622 register_t *retval; 623 { 624 #ifdef notyet 625 struct ultrix_sys_exportfs_args *uap = v; 626 #endif 627 628 /* 629 * XXX: should perhaps translate into a mount(2) 630 * with MOUNT_EXPORT? 631 */ 632 return 0; 633 } 634 635 int 636 ultrix_sys_sigpending(l, v, retval) 637 struct lwp *l; 638 void *v; 639 register_t *retval; 640 { 641 struct ultrix_sys_sigpending_args *uap = v; 642 sigset_t ss; 643 int mask; 644 645 sigpending1(l->l_proc, &ss); 646 mask = ss.__bits[0]; 647 648 return (copyout((caddr_t)&mask, (caddr_t)SCARG(uap, mask), sizeof(int))); 649 } 650 651 int 652 ultrix_sys_sigreturn(l, v, retval) 653 struct lwp *l; 654 void *v; 655 register_t *retval; 656 { 657 struct ultrix_sys_sigreturn_args *uap = v; 658 659 /* struct sigcontext13 is close enough to Ultrix */ 660 661 return (compat_13_sys_sigreturn(l, uap, retval)); 662 } 663 664 int 665 ultrix_sys_sigcleanup(l, v, retval) 666 struct lwp *l; 667 void *v; 668 register_t *retval; 669 { 670 struct ultrix_sys_sigcleanup_args *uap = v; 671 672 /* struct sigcontext13 is close enough to Ultrix */ 673 674 return (compat_13_sys_sigreturn(l, uap, retval)); 675 } 676 677 int 678 ultrix_sys_sigsuspend(l, v, retval) 679 struct lwp *l; 680 void *v; 681 register_t *retval; 682 { 683 struct ultrix_sys_sigsuspend_args *uap = v; 684 int mask = SCARG(uap, mask); 685 sigset_t ss; 686 687 ss.__bits[0] = mask; 688 ss.__bits[1] = 0; 689 ss.__bits[2] = 0; 690 ss.__bits[3] = 0; 691 692 return (sigsuspend1(l->l_proc, &ss)); 693 } 694 695 #define ULTRIX_SV_ONSTACK 0x0001 /* take signal on signal stack */ 696 #define ULTRIX_SV_INTERRUPT 0x0002 /* do not restart system on signal return */ 697 #define ULTRIX_SV_OLDSIG 0x1000 /* Emulate old signal() for POSIX */ 698 699 int 700 ultrix_sys_sigvec(l, v, retval) 701 struct lwp *l; 702 void *v; 703 register_t *retval; 704 { 705 struct ultrix_sys_sigvec_args *uap = v; 706 struct sigvec nsv, osv; 707 struct sigaction nsa, osa; 708 int error; 709 710 if (SCARG(uap, nsv)) { 711 error = copyin(SCARG(uap, nsv), &nsv, sizeof(nsv)); 712 if (error) 713 return (error); 714 nsa.sa_handler = nsv.sv_handler; 715 #if 0 /* documentation */ 716 /* ONSTACK is identical */ 717 nsa.sa_flags = nsv.sv_flags & ULTRIX_SV_ONSTACK; 718 if ((nsv.sv_flags & ULTRIX_SV_OLDSIG) 719 /* old signal() - always restart */ 720 || (!(nsv.sv_flags & ULTRIX_SV_INTERRUPT)) 721 /* inverted meaning (same bit) */ 722 ) 723 nsa.sa_flags |= SA_RESTART; 724 #else /* optimized - assuming ULTRIX_SV_OLDSIG=>!ULTRIX_SV_INTERRUPT */ 725 nsa.sa_flags = nsv.sv_flags & ~ULTRIX_SV_OLDSIG; 726 nsa.sa_flags ^= SA_RESTART; 727 #endif 728 native_sigset13_to_sigset(&nsv.sv_mask, &nsa.sa_mask); 729 } 730 error = sigaction1(l->l_proc, SCARG(uap, signum), 731 SCARG(uap, nsv) ? &nsa : 0, SCARG(uap, osv) ? &osa : 0, 732 NULL, 0); 733 if (error) 734 return (error); 735 if (SCARG(uap, osv)) { 736 osv.sv_handler = osa.sa_handler; 737 osv.sv_flags = osa.sa_flags ^ SA_RESTART; 738 osv.sv_flags &= (ULTRIX_SV_ONSTACK | ULTRIX_SV_INTERRUPT); 739 native_sigset_to_sigset13(&osa.sa_mask, &osv.sv_mask); 740 error = copyout(&osv, SCARG(uap, osv), sizeof(osv)); 741 if (error) 742 return (error); 743 } 744 return (0); 745 } 746 747 int 748 ultrix_sys_shmsys(l, v, retval) 749 struct lwp *l; 750 void *v; 751 register_t *retval; 752 { 753 754 #ifdef SYSVSHM 755 756 /* Ultrix SVSHM weirndess: */ 757 struct ultrix_sys_shmsys_args *uap = v; 758 struct sys_shmat_args shmat_args; 759 struct compat_14_sys_shmctl_args shmctl_args; 760 struct sys_shmdt_args shmdt_args; 761 struct sys_shmget_args shmget_args; 762 763 764 switch (SCARG(uap, shmop)) { 765 case 0: /* Ultrix shmat() */ 766 SCARG(&shmat_args, shmid) = SCARG(uap, a2); 767 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a3); 768 SCARG(&shmat_args, shmflg) = SCARG(uap, a4); 769 return (sys_shmat(l, &shmat_args, retval)); 770 771 case 1: /* Ultrix shmctl() */ 772 SCARG(&shmctl_args, shmid) = SCARG(uap, a2); 773 SCARG(&shmctl_args, cmd) = SCARG(uap, a3); 774 SCARG(&shmctl_args, buf) = (struct shmid_ds14 *)SCARG(uap, a4); 775 return (compat_14_sys_shmctl(l, &shmctl_args, retval)); 776 777 case 2: /* Ultrix shmdt() */ 778 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a2); 779 return (sys_shmdt(l, &shmdt_args, retval)); 780 781 case 3: /* Ultrix shmget() */ 782 SCARG(&shmget_args, key) = SCARG(uap, a2); 783 SCARG(&shmget_args, size) = SCARG(uap, a3); 784 SCARG(&shmget_args, shmflg) = SCARG(uap, a4) 785 & (IPC_CREAT|IPC_EXCL|IPC_NOWAIT); 786 return (sys_shmget(l, &shmget_args, retval)); 787 788 default: 789 return (EINVAL); 790 } 791 #else 792 return (EOPNOTSUPP); 793 #endif /* SYSVSHM */ 794 } 795 796 static int 797 ultrix_to_bsd_flock(ufl, fl) 798 struct ultrix_flock *ufl; 799 struct flock *fl; 800 { 801 802 fl->l_start = ufl->l_start; 803 fl->l_len = ufl->l_len; 804 fl->l_pid = ufl->l_pid; 805 fl->l_whence = ufl->l_whence; 806 807 switch (ufl->l_type) { 808 case ULTRIX_F_RDLCK: 809 fl->l_type = F_RDLCK; 810 break; 811 case ULTRIX_F_WRLCK: 812 fl->l_type = F_WRLCK; 813 break; 814 case ULTRIX_F_UNLCK: 815 fl->l_type = F_UNLCK; 816 break; 817 default: 818 return (EINVAL); 819 } 820 821 return (0); 822 } 823 824 static void 825 bsd_to_ultrix_flock(fl, ufl) 826 struct flock *fl; 827 struct ultrix_flock *ufl; 828 { 829 830 ufl->l_start = fl->l_start; 831 ufl->l_len = fl->l_len; 832 ufl->l_pid = fl->l_pid; 833 ufl->l_whence = fl->l_whence; 834 835 switch (fl->l_type) { 836 case F_RDLCK: 837 ufl->l_type = ULTRIX_F_RDLCK; 838 break; 839 case F_WRLCK: 840 ufl->l_type = ULTRIX_F_WRLCK; 841 break; 842 case F_UNLCK: 843 ufl->l_type = ULTRIX_F_UNLCK; 844 break; 845 } 846 } 847 848 int 849 ultrix_sys_fcntl(l, v, retval) 850 struct lwp *l; 851 void *v; 852 register_t *retval; 853 { 854 struct ultrix_sys_fcntl_args *uap = v; 855 struct proc *p = l->l_proc; 856 int error; 857 struct ultrix_flock ufl; 858 struct flock fl, *flp; 859 caddr_t sg; 860 struct sys_fcntl_args *args, fca; 861 862 switch (SCARG(uap, cmd)) { 863 case F_GETLK: 864 case F_SETLK: 865 case F_SETLKW: 866 error = copyin(SCARG(uap, arg), &ufl, sizeof(ufl)); 867 if (error) 868 return (error); 869 error = ultrix_to_bsd_flock(&ufl, &fl); 870 if (error) 871 return (error); 872 sg = stackgap_init(p, 0); 873 flp = (struct flock *)stackgap_alloc(p, &sg, sizeof(*flp)); 874 error = copyout(&fl, flp, sizeof(*flp)); 875 if (error) 876 return (error); 877 878 SCARG(&fca, fd) = SCARG(uap, fd); 879 SCARG(&fca, cmd) = SCARG(uap, cmd); 880 SCARG(&fca, arg) = flp; 881 args = &fca; 882 break; 883 default: 884 args = v; 885 break; 886 } 887 888 error = sys_fcntl(l, args, retval); 889 if (error) 890 return (error); 891 892 switch (SCARG(uap, cmd)) { 893 case F_GETLK: 894 error = copyin(flp, &fl, sizeof(fl)); 895 if (error) 896 return (error); 897 bsd_to_ultrix_flock(&fl, &ufl); 898 error = copyout(&ufl, SCARG(uap, arg), sizeof(ufl)); 899 break; 900 } 901 902 return (error); 903 } 904
Indexes created Tue Sep 23 14:10:03 GMT 2025