ultrix_misc.c revision 1.92
1 /* $NetBSD: ultrix_misc.c,v 1.92 2003/12/20 19:01:30 fvdl 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 1.92 2003/12/20 19:01:30 fvdl 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 NULL, 175 ultrix_sigcode, 176 ultrix_esigcode, 177 &emul_ultrix_object, 178 setregs, 179 NULL, 180 NULL, 181 NULL, 182 NULL, 183 NULL, 184 #ifdef __HAVE_SYSCALL_INTERN 185 syscall_intern, 186 #else 187 syscall, 188 #endif 189 NULL, 190 NULL, 191 }; 192 193 #define GSI_PROG_ENV 1 194 195 int 196 ultrix_sys_getsysinfo(l, v, retval) 197 struct lwp *l; 198 void *v; 199 register_t *retval; 200 { 201 struct ultrix_sys_getsysinfo_args *uap = v; 202 static short progenv = 0; 203 204 switch (SCARG(uap, op)) { 205 /* operations implemented: */ 206 case GSI_PROG_ENV: 207 if (SCARG(uap, nbytes) < sizeof(short)) 208 return EINVAL; 209 *retval = 1; 210 return (copyout(&progenv, SCARG(uap, buffer), sizeof(short))); 211 default: 212 *retval = 0; /* info unavail */ 213 return 0; 214 } 215 } 216 217 int 218 ultrix_sys_setsysinfo(l, v, retval) 219 struct lwp *l; 220 void *v; 221 register_t *retval; 222 { 223 224 #ifdef notyet 225 struct ultrix_sys_setsysinfo_args *uap = v; 226 #endif 227 228 *retval = 0; 229 return 0; 230 } 231 232 int 233 ultrix_sys_waitpid(l, v, retval) 234 struct lwp *l; 235 void *v; 236 register_t *retval; 237 { 238 struct ultrix_sys_waitpid_args *uap = v; 239 struct sys_wait4_args ua; 240 241 SCARG(&ua, pid) = SCARG(uap, pid); 242 SCARG(&ua, status) = SCARG(uap, status); 243 SCARG(&ua, options) = SCARG(uap, options); 244 SCARG(&ua, rusage) = 0; 245 246 return (sys_wait4(l, &ua, retval)); 247 } 248 249 int 250 ultrix_sys_wait3(l, v, retval) 251 struct lwp *l; 252 void *v; 253 register_t *retval; 254 { 255 struct ultrix_sys_wait3_args *uap = v; 256 struct sys_wait4_args ua; 257 258 SCARG(&ua, pid) = -1; 259 SCARG(&ua, status) = SCARG(uap, status); 260 SCARG(&ua, options) = SCARG(uap, options); 261 SCARG(&ua, rusage) = SCARG(uap, rusage); 262 263 return (sys_wait4(l, &ua, retval)); 264 } 265 266 /* 267 * Ultrix binaries pass in FD_MAX as the first arg to select(). 268 * On Ultrix, FD_MAX is 4096, which is more than the NetBSD sys_select() 269 * can handle. 270 * Since we can't have more than the (native) FD_MAX descriptors open, 271 * limit nfds to at most FD_MAX. 272 */ 273 int 274 ultrix_sys_select(l, v, retval) 275 struct lwp *l; 276 void *v; 277 register_t *retval; 278 { 279 struct sys_select_args *uap = v; 280 struct timeval atv; 281 int error; 282 283 /* Limit number of FDs selected on to the native maximum */ 284 285 if (SCARG(uap, nd) > FD_SETSIZE) 286 SCARG(uap, nd) = FD_SETSIZE; 287 288 /* Check for negative timeval */ 289 if (SCARG(uap, tv)) { 290 error = copyin((caddr_t)SCARG(uap, tv), (caddr_t)&atv, 291 sizeof(atv)); 292 if (error) 293 goto done; 294 #ifdef DEBUG 295 /* Ultrix clients sometimes give negative timeouts? */ 296 if (atv.tv_sec < 0 || atv.tv_usec < 0) 297 printf("ultrix select( %ld, %ld): negative timeout\n", 298 atv.tv_sec, atv.tv_usec); 299 #endif 300 301 } 302 error = sys_select(l, (void*) uap, retval); 303 if (error == EINVAL) 304 printf("ultrix select: bad args?\n"); 305 306 done: 307 return error; 308 } 309 310 #if defined(NFS) 311 int 312 async_daemon(l, v, retval) 313 struct lwp *l; 314 void *v; 315 register_t *retval; 316 { 317 struct sys_nfssvc_args ouap; 318 319 SCARG(&ouap, flag) = NFSSVC_BIOD; 320 SCARG(&ouap, argp) = NULL; 321 322 return (sys_nfssvc(l, &ouap, retval)); 323 } 324 #endif /* NFS */ 325 326 327 #define SUN__MAP_NEW 0x80000000 /* if not, old mmap & cannot handle */ 328 329 int 330 ultrix_sys_mmap(l, v, retval) 331 struct lwp *l; 332 void *v; 333 register_t *retval; 334 { 335 struct ultrix_sys_mmap_args *uap = v; 336 struct sys_mmap_args ouap; 337 338 /* 339 * Verify the arguments. 340 */ 341 if (SCARG(uap, prot) & ~(PROT_READ|PROT_WRITE|PROT_EXEC)) 342 return (EINVAL); /* XXX still needed? */ 343 344 if ((SCARG(uap, flags) & SUN__MAP_NEW) == 0) 345 return (EINVAL); 346 347 SCARG(&ouap, flags) = SCARG(uap, flags) & ~SUN__MAP_NEW; 348 SCARG(&ouap, addr) = SCARG(uap, addr); 349 SCARG(&ouap, len) = SCARG(uap, len); 350 SCARG(&ouap, prot) = SCARG(uap, prot); 351 SCARG(&ouap, fd) = SCARG(uap, fd); 352 SCARG(&ouap, pos) = SCARG(uap, pos); 353 354 return (sys_mmap(l, &ouap, retval)); 355 } 356 357 int 358 ultrix_sys_setsockopt(l, v, retval) 359 struct lwp *l; 360 void *v; 361 register_t *retval; 362 { 363 struct ultrix_sys_setsockopt_args *uap = v; 364 struct proc *p = l->l_proc; 365 struct file *fp; 366 struct mbuf *m = NULL; 367 int error; 368 369 /* getsock() will use the descriptor for us */ 370 if ((error = getsock(p->p_fd, SCARG(uap, s), &fp)) != 0) 371 return (error); 372 #define SO_DONTLINGER (~SO_LINGER) 373 if (SCARG(uap, name) == SO_DONTLINGER) { 374 m = m_get(M_WAIT, MT_SOOPTS); 375 mtod(m, struct linger *)->l_onoff = 0; 376 m->m_len = sizeof(struct linger); 377 error = sosetopt((struct socket *)fp->f_data, SCARG(uap, level), 378 SO_LINGER, m); 379 } 380 if (SCARG(uap, level) == IPPROTO_IP) { 381 #define EMUL_IP_MULTICAST_IF 2 382 #define EMUL_IP_MULTICAST_TTL 3 383 #define EMUL_IP_MULTICAST_LOOP 4 384 #define EMUL_IP_ADD_MEMBERSHIP 5 385 #define EMUL_IP_DROP_MEMBERSHIP 6 386 static int ipoptxlat[] = { 387 IP_MULTICAST_IF, 388 IP_MULTICAST_TTL, 389 IP_MULTICAST_LOOP, 390 IP_ADD_MEMBERSHIP, 391 IP_DROP_MEMBERSHIP 392 }; 393 if (SCARG(uap, name) >= EMUL_IP_MULTICAST_IF && 394 SCARG(uap, name) <= EMUL_IP_DROP_MEMBERSHIP) { 395 SCARG(uap, name) = 396 ipoptxlat[SCARG(uap, name) - EMUL_IP_MULTICAST_IF]; 397 } 398 } 399 if (SCARG(uap, valsize) > MLEN) { 400 error = EINVAL; 401 goto out; 402 } 403 if (SCARG(uap, val)) { 404 m = m_get(M_WAIT, MT_SOOPTS); 405 error = copyin(SCARG(uap, val), mtod(m, caddr_t), 406 (u_int)SCARG(uap, valsize)); 407 if (error) { 408 (void) m_free(m); 409 goto out; 410 } 411 m->m_len = SCARG(uap, valsize); 412 } 413 error = sosetopt((struct socket *)fp->f_data, SCARG(uap, level), 414 SCARG(uap, name), m); 415 out: 416 FILE_UNUSE(fp, p); 417 return (error); 418 } 419 420 #define ULTRIX__SYS_NMLN 32 421 422 struct ultrix_utsname { 423 char sysname[ULTRIX__SYS_NMLN]; 424 char nodename[ULTRIX__SYS_NMLN]; 425 char release[ULTRIX__SYS_NMLN]; 426 char version[ULTRIX__SYS_NMLN]; 427 char machine[ULTRIX__SYS_NMLN]; 428 }; 429 430 int 431 ultrix_sys_uname(l, v, retval) 432 struct lwp *l; 433 void *v; 434 register_t *retval; 435 { 436 struct ultrix_sys_uname_args *uap = v; 437 struct ultrix_utsname sut; 438 const char *cp; 439 char *dp, *ep; 440 441 memset(&sut, 0, sizeof(sut)); 442 443 strncpy(sut.sysname, ostype, sizeof(sut.sysname) - 1); 444 strncpy(sut.nodename, hostname, sizeof(sut.nodename) - 1); 445 strncpy(sut.release, osrelease, sizeof(sut.release) - 1); 446 dp = sut.version; 447 ep = &sut.version[sizeof(sut.version) - 1]; 448 for (cp = version; *cp && *cp != '('; cp++) 449 ; 450 for (cp++; *cp && *cp != ')' && dp < ep; cp++) 451 *dp++ = *cp; 452 for (; *cp && *cp != '#'; cp++) 453 ; 454 for (; *cp && *cp != ':' && dp < ep; cp++) 455 *dp++ = *cp; 456 *dp = '\0'; 457 strncpy(sut.machine, machine, sizeof(sut.machine) - 1); 458 459 return copyout((caddr_t)&sut, (caddr_t)SCARG(uap, name), 460 sizeof(struct ultrix_utsname)); 461 } 462 463 int 464 ultrix_sys_setpgrp(l, v, retval) 465 struct lwp *l; 466 void *v; 467 register_t *retval; 468 { 469 struct ultrix_sys_setpgrp_args *uap = v; 470 struct proc *p = l->l_proc; 471 472 /* 473 * difference to our setpgid call is to include backwards 474 * compatibility to pre-setsid() binaries. Do setsid() 475 * instead of setpgid() in those cases where the process 476 * tries to create a new session the old way. 477 */ 478 if (!SCARG(uap, pgid) && 479 (!SCARG(uap, pid) || SCARG(uap, pid) == p->p_pid)) 480 return sys_setsid(l, uap, retval); 481 else 482 return sys_setpgid(l, uap, retval); 483 } 484 485 #if defined (NFSSERVER) 486 int 487 ultrix_sys_nfssvc(l, v, retval) 488 struct lwp *l; 489 void *v; 490 register_t *retval; 491 { 492 493 #if 0 /* XXX */ 494 struct ultrix_sys_nfssvc_args *uap = v; 495 struct emul *e = p->p_emul; 496 struct sys_nfssvc_args outuap; 497 struct sockaddr sa; 498 int error; 499 caddr_t sg = stackgap_init(p, 0); 500 501 memset(&outuap, 0, sizeof outuap); 502 SCARG(&outuap, fd) = SCARG(uap, fd); 503 SCARG(&outuap, mskval) = stackgap_alloc(p, &sg, sizeof sa); 504 SCARG(&outuap, msklen) = sizeof sa; 505 SCARG(&outuap, mtchval) = stackgap_alloc(p, &sg, sizeof sa); 506 SCARG(&outuap, mtchlen) = sizeof sa; 507 508 memset(&sa, 0, sizeof sa); 509 if (error = copyout(&sa, SCARG(&outuap, mskval), SCARG(&outuap, msklen))) 510 return (error); 511 if (error = copyout(&sa, SCARG(&outuap, mtchval), SCARG(&outuap, mtchlen))) 512 return (error); 513 514 return nfssvc(l, &outuap, retval); 515 #else 516 return (ENOSYS); 517 #endif 518 } 519 #endif /* NFSSERVER */ 520 521 struct ultrix_ustat { 522 daddr_t f_tfree; /* total free */ 523 ino_t f_tinode; /* total inodes free */ 524 char f_fname[6]; /* filsys name */ 525 char f_fpack[6]; /* filsys pack name */ 526 }; 527 528 int 529 ultrix_sys_ustat(l, v, retval) 530 struct lwp *l; 531 void *v; 532 register_t *retval; 533 { 534 struct ultrix_sys_ustat_args *uap = v; 535 struct ultrix_ustat us; 536 int error; 537 538 memset(&us, 0, sizeof us); 539 540 /* 541 * XXX: should set f_tfree and f_tinode at least 542 * How do we translate dev -> fstat? (and then to ultrix_ustat) 543 */ 544 545 if ((error = copyout(&us, SCARG(uap, buf), sizeof us)) != 0) 546 return (error); 547 return 0; 548 } 549 550 int 551 ultrix_sys_quotactl(l, v, retval) 552 struct lwp *l; 553 void *v; 554 register_t *retval; 555 { 556 557 #ifdef notyet 558 struct ultrix_sys_quotactl_args *uap = v; 559 #endif 560 561 return EINVAL; 562 } 563 564 int 565 ultrix_sys_vhangup(l, v, retval) 566 struct lwp *l; 567 void *v; 568 register_t *retval; 569 { 570 571 return 0; 572 } 573 574 575 /* 576 * RISC Ultrix cache control syscalls 577 */ 578 #ifdef __mips 579 int 580 ultrix_sys_cacheflush(l, v, retval) 581 struct lwp *l; 582 void *v; 583 register_t *retval; 584 { 585 struct ultrix_sys_cacheflush_args /* { 586 syscallarg(void *) addr; 587 syscallarg(int) nbytes; 588 syscallarg(int) flag; 589 } */ *uap = v; 590 struct proc *p = l->l_proc; 591 vaddr_t va = (vaddr_t)SCARG(uap, addr); 592 int nbytes = SCARG(uap, nbytes); 593 int whichcache = SCARG(uap, whichcache); 594 595 return (mips_user_cacheflush(p, va, nbytes, whichcache)); 596 } 597 598 599 int 600 ultrix_sys_cachectl(l, v, retval) 601 struct lwp *l; 602 void *v; 603 register_t *retval; 604 { 605 struct ultrix_sys_cachectl_args /* { 606 syscallarg(void *) addr; 607 syscallarg(int) nbytes; 608 syscallarg(int) cacheop; 609 } */ *uap = v; 610 struct proc *p = l->l_proc; 611 vaddr_t va = (vaddr_t)SCARG(uap, addr); 612 int nbytes = SCARG(uap, nbytes); 613 int cacheop = SCARG(uap, cacheop); 614 615 return mips_user_cachectl(p, va, nbytes, cacheop); 616 } 617 618 #endif /* __mips */ 619 620 621 int 622 ultrix_sys_exportfs(l, v, retval) 623 struct lwp *l; 624 void *v; 625 register_t *retval; 626 { 627 #ifdef notyet 628 struct ultrix_sys_exportfs_args *uap = v; 629 #endif 630 631 /* 632 * XXX: should perhaps translate into a mount(2) 633 * with MOUNT_EXPORT? 634 */ 635 return 0; 636 } 637 638 int 639 ultrix_sys_sigpending(l, v, retval) 640 struct lwp *l; 641 void *v; 642 register_t *retval; 643 { 644 struct ultrix_sys_sigpending_args *uap = v; 645 sigset_t ss; 646 int mask; 647 648 sigpending1(l->l_proc, &ss); 649 mask = ss.__bits[0]; 650 651 return (copyout((caddr_t)&mask, (caddr_t)SCARG(uap, mask), sizeof(int))); 652 } 653 654 int 655 ultrix_sys_sigreturn(l, v, retval) 656 struct lwp *l; 657 void *v; 658 register_t *retval; 659 { 660 struct ultrix_sys_sigreturn_args *uap = v; 661 662 /* struct sigcontext13 is close enough to Ultrix */ 663 664 return (compat_13_sys_sigreturn(l, uap, retval)); 665 } 666 667 int 668 ultrix_sys_sigcleanup(l, v, retval) 669 struct lwp *l; 670 void *v; 671 register_t *retval; 672 { 673 struct ultrix_sys_sigcleanup_args *uap = v; 674 675 /* struct sigcontext13 is close enough to Ultrix */ 676 677 return (compat_13_sys_sigreturn(l, uap, retval)); 678 } 679 680 int 681 ultrix_sys_sigsuspend(l, v, retval) 682 struct lwp *l; 683 void *v; 684 register_t *retval; 685 { 686 struct ultrix_sys_sigsuspend_args *uap = v; 687 int mask = SCARG(uap, mask); 688 sigset_t ss; 689 690 ss.__bits[0] = mask; 691 ss.__bits[1] = 0; 692 ss.__bits[2] = 0; 693 ss.__bits[3] = 0; 694 695 return (sigsuspend1(l->l_proc, &ss)); 696 } 697 698 #define ULTRIX_SV_ONSTACK 0x0001 /* take signal on signal stack */ 699 #define ULTRIX_SV_INTERRUPT 0x0002 /* do not restart system on signal return */ 700 #define ULTRIX_SV_OLDSIG 0x1000 /* Emulate old signal() for POSIX */ 701 702 int 703 ultrix_sys_sigvec(l, v, retval) 704 struct lwp *l; 705 void *v; 706 register_t *retval; 707 { 708 struct ultrix_sys_sigvec_args *uap = v; 709 struct sigvec nsv, osv; 710 struct sigaction nsa, osa; 711 int error; 712 713 if (SCARG(uap, nsv)) { 714 error = copyin(SCARG(uap, nsv), &nsv, sizeof(nsv)); 715 if (error) 716 return (error); 717 nsa.sa_handler = nsv.sv_handler; 718 #if 0 /* documentation */ 719 /* ONSTACK is identical */ 720 nsa.sa_flags = nsv.sv_flags & ULTRIX_SV_ONSTACK; 721 if ((nsv.sv_flags & ULTRIX_SV_OLDSIG) 722 /* old signal() - always restart */ 723 || (!(nsv.sv_flags & ULTRIX_SV_INTERRUPT)) 724 /* inverted meaning (same bit) */ 725 ) 726 nsa.sa_flags |= SA_RESTART; 727 #else /* optimized - assuming ULTRIX_SV_OLDSIG=>!ULTRIX_SV_INTERRUPT */ 728 nsa.sa_flags = nsv.sv_flags & ~ULTRIX_SV_OLDSIG; 729 nsa.sa_flags ^= SA_RESTART; 730 #endif 731 native_sigset13_to_sigset(&nsv.sv_mask, &nsa.sa_mask); 732 } 733 error = sigaction1(l->l_proc, SCARG(uap, signum), 734 SCARG(uap, nsv) ? &nsa : 0, SCARG(uap, osv) ? &osa : 0, 735 NULL, 0); 736 if (error) 737 return (error); 738 if (SCARG(uap, osv)) { 739 osv.sv_handler = osa.sa_handler; 740 osv.sv_flags = osa.sa_flags ^ SA_RESTART; 741 osv.sv_flags &= (ULTRIX_SV_ONSTACK | ULTRIX_SV_INTERRUPT); 742 native_sigset_to_sigset13(&osa.sa_mask, &osv.sv_mask); 743 error = copyout(&osv, SCARG(uap, osv), sizeof(osv)); 744 if (error) 745 return (error); 746 } 747 return (0); 748 } 749 750 int 751 ultrix_sys_shmsys(l, v, retval) 752 struct lwp *l; 753 void *v; 754 register_t *retval; 755 { 756 757 #ifdef SYSVSHM 758 759 /* Ultrix SVSHM weirndess: */ 760 struct ultrix_sys_shmsys_args *uap = v; 761 struct sys_shmat_args shmat_args; 762 struct compat_14_sys_shmctl_args shmctl_args; 763 struct sys_shmdt_args shmdt_args; 764 struct sys_shmget_args shmget_args; 765 766 767 switch (SCARG(uap, shmop)) { 768 case 0: /* Ultrix shmat() */ 769 SCARG(&shmat_args, shmid) = SCARG(uap, a2); 770 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a3); 771 SCARG(&shmat_args, shmflg) = SCARG(uap, a4); 772 return (sys_shmat(l, &shmat_args, retval)); 773 774 case 1: /* Ultrix shmctl() */ 775 SCARG(&shmctl_args, shmid) = SCARG(uap, a2); 776 SCARG(&shmctl_args, cmd) = SCARG(uap, a3); 777 SCARG(&shmctl_args, buf) = (struct shmid_ds14 *)SCARG(uap, a4); 778 return (compat_14_sys_shmctl(l, &shmctl_args, retval)); 779 780 case 2: /* Ultrix shmdt() */ 781 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a2); 782 return (sys_shmdt(l, &shmdt_args, retval)); 783 784 case 3: /* Ultrix shmget() */ 785 SCARG(&shmget_args, key) = SCARG(uap, a2); 786 SCARG(&shmget_args, size) = SCARG(uap, a3); 787 SCARG(&shmget_args, shmflg) = SCARG(uap, a4) 788 & (IPC_CREAT|IPC_EXCL|IPC_NOWAIT); 789 return (sys_shmget(l, &shmget_args, retval)); 790 791 default: 792 return (EINVAL); 793 } 794 #else 795 return (EOPNOTSUPP); 796 #endif /* SYSVSHM */ 797 } 798 799 static int 800 ultrix_to_bsd_flock(ufl, fl) 801 struct ultrix_flock *ufl; 802 struct flock *fl; 803 { 804 805 fl->l_start = ufl->l_start; 806 fl->l_len = ufl->l_len; 807 fl->l_pid = ufl->l_pid; 808 fl->l_whence = ufl->l_whence; 809 810 switch (ufl->l_type) { 811 case ULTRIX_F_RDLCK: 812 fl->l_type = F_RDLCK; 813 break; 814 case ULTRIX_F_WRLCK: 815 fl->l_type = F_WRLCK; 816 break; 817 case ULTRIX_F_UNLCK: 818 fl->l_type = F_UNLCK; 819 break; 820 default: 821 return (EINVAL); 822 } 823 824 return (0); 825 } 826 827 static void 828 bsd_to_ultrix_flock(fl, ufl) 829 struct flock *fl; 830 struct ultrix_flock *ufl; 831 { 832 833 ufl->l_start = fl->l_start; 834 ufl->l_len = fl->l_len; 835 ufl->l_pid = fl->l_pid; 836 ufl->l_whence = fl->l_whence; 837 838 switch (fl->l_type) { 839 case F_RDLCK: 840 ufl->l_type = ULTRIX_F_RDLCK; 841 break; 842 case F_WRLCK: 843 ufl->l_type = ULTRIX_F_WRLCK; 844 break; 845 case F_UNLCK: 846 ufl->l_type = ULTRIX_F_UNLCK; 847 break; 848 } 849 } 850 851 int 852 ultrix_sys_fcntl(l, v, retval) 853 struct lwp *l; 854 void *v; 855 register_t *retval; 856 { 857 struct ultrix_sys_fcntl_args *uap = v; 858 struct proc *p = l->l_proc; 859 int error; 860 struct ultrix_flock ufl; 861 struct flock fl, *flp = NULL; /* XXX gcc */ 862 caddr_t sg; 863 struct sys_fcntl_args *args, fca; 864 865 switch (SCARG(uap, cmd)) { 866 case F_GETLK: 867 case F_SETLK: 868 case F_SETLKW: 869 error = copyin(SCARG(uap, arg), &ufl, sizeof(ufl)); 870 if (error) 871 return (error); 872 error = ultrix_to_bsd_flock(&ufl, &fl); 873 if (error) 874 return (error); 875 sg = stackgap_init(p, 0); 876 flp = (struct flock *)stackgap_alloc(p, &sg, sizeof(*flp)); 877 error = copyout(&fl, flp, sizeof(*flp)); 878 if (error) 879 return (error); 880 881 SCARG(&fca, fd) = SCARG(uap, fd); 882 SCARG(&fca, cmd) = SCARG(uap, cmd); 883 SCARG(&fca, arg) = flp; 884 args = &fca; 885 break; 886 default: 887 args = v; 888 break; 889 } 890 891 error = sys_fcntl(l, args, retval); 892 if (error) 893 return (error); 894 895 switch (SCARG(uap, cmd)) { 896 case F_GETLK: 897 error = copyin(flp, &fl, sizeof(fl)); 898 if (error) 899 return (error); 900 bsd_to_ultrix_flock(&fl, &ufl); 901 error = copyout(&ufl, SCARG(uap, arg), sizeof(ufl)); 902 break; 903 } 904 905 return (error); 906 } 907
Indexes created Mon Sep 22 13:09:51 GMT 2025