ultrix_misc.c revision 1.112.4.1
1 /* $NetBSD: ultrix_misc.c,v 1.112.4.1 2008/05/10 23:49:02 wrstuden 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 1.112.4.1 2008/05/10 23:49:02 wrstuden 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 <uvm/uvm_extern.h> 128 129 #include <compat/ultrix/ultrix_syscall.h> 130 #include <compat/ultrix/ultrix_syscallargs.h> 131 #include <compat/common/compat_util.h> 132 133 #include <netinet/in.h> 134 135 #include <miscfs/specfs/specdev.h> 136 137 #include <nfs/rpcv2.h> 138 #include <nfs/nfsproto.h> 139 #include <nfs/nfs.h> 140 141 #include <sys/socketvar.h> /* sosetopt() */ 142 143 #include <compat/ultrix/ultrix_flock.h> 144 145 #include <compat/sys/signal.h> 146 #include <compat/sys/signalvar.h> 147 148 #ifdef __mips 149 #include <mips/cachectl.h> 150 #include <mips/frame.h> 151 #endif 152 153 static int ultrix_to_bsd_flock(struct ultrix_flock *, struct flock *); 154 static void bsd_to_ultrix_flock(struct flock *, struct ultrix_flock *); 155 156 extern struct sysent ultrix_sysent[]; 157 extern const char * const ultrix_syscallnames[]; 158 extern char ultrix_sigcode[], ultrix_esigcode[]; 159 160 struct uvm_object *emul_ultrix_object; 161 162 #ifndef __HAVE_SYSCALL_INTERN 163 void syscall(void); 164 #endif 165 166 const struct emul emul_ultrix = { 167 "ultrix", 168 "/emul/ultrix", 169 #ifndef __HAVE_MINIMAL_EMUL 170 0, 171 NULL, 172 ULTRIX_SYS_syscall, 173 ULTRIX_SYS_NSYSENT, 174 #endif 175 ultrix_sysent, 176 ultrix_syscallnames, 177 #ifdef __mips 178 sendsig_sigcontext, 179 #else /* vax */ 180 sendsig, 181 #endif 182 trapsignal, 183 NULL, 184 ultrix_sigcode, 185 ultrix_esigcode, 186 &emul_ultrix_object, 187 setregs, 188 NULL, 189 NULL, 190 NULL, 191 NULL, 192 NULL, 193 #ifdef __HAVE_SYSCALL_INTERN 194 syscall_intern, 195 #else 196 syscall, 197 #endif 198 NULL, 199 NULL, 200 201 uvm_default_mapaddr, 202 NULL, 203 NULL, 204 0, 205 NULL 206 }; 207 208 #define GSI_PROG_ENV 1 209 210 int 211 ultrix_sys_getsysinfo(struct lwp *l, const struct ultrix_sys_getsysinfo_args *uap, register_t *retval) 212 { 213 static short progenv = 0; 214 215 switch (SCARG(uap, op)) { 216 /* operations implemented: */ 217 case GSI_PROG_ENV: 218 if (SCARG(uap, nbytes) < sizeof(short)) 219 return EINVAL; 220 *retval = 1; 221 return copyout(&progenv, SCARG(uap, buffer), sizeof(progenv)); 222 default: 223 *retval = 0; /* info unavail */ 224 return 0; 225 } 226 } 227 228 int 229 ultrix_sys_setsysinfo(struct lwp *l, const struct ultrix_sys_setsysinfo_args *uap, register_t *retval) 230 { 231 232 *retval = 0; 233 return 0; 234 } 235 236 int 237 ultrix_sys_waitpid(struct lwp *l, const struct ultrix_sys_waitpid_args *uap, register_t *retval) 238 { 239 struct sys_wait4_args ap; 240 241 SCARG(&ap, pid) = SCARG(uap, pid); 242 SCARG(&ap, status) = SCARG(uap, status); 243 SCARG(&ap, options) = SCARG(uap, options); 244 SCARG(&ap, rusage) = 0; 245 246 return sys_wait4(l, &ap, retval); 247 } 248 249 int 250 ultrix_sys_wait3(struct lwp *l, const struct ultrix_sys_wait3_args *uap, register_t *retval) 251 { 252 struct sys_wait4_args ap; 253 254 SCARG(&ap, pid) = -1; 255 SCARG(&ap, status) = SCARG(uap, status); 256 SCARG(&ap, options) = SCARG(uap, options); 257 SCARG(&ap, rusage) = SCARG(uap, rusage); 258 259 return sys_wait4(l, &ap, retval); 260 } 261 262 /* 263 * Ultrix binaries pass in FD_MAX as the first arg to select(). 264 * On Ultrix, FD_MAX is 4096, which is more than the NetBSD sys_select() 265 * can handle. 266 * Since we can't have more than the (native) FD_MAX descriptors open, 267 * limit nfds to at most FD_MAX. 268 */ 269 int 270 ultrix_sys_select(struct lwp *l, const struct ultrix_sys_select_args *uap, register_t *retval) 271 { 272 struct timeval atv; 273 int error; 274 struct sys_select_args ap; 275 276 /* Limit number of FDs selected on to the native maximum */ 277 278 if (SCARG(uap, nd) > FD_SETSIZE) 279 SCARG(&ap, nd) = FD_SETSIZE; 280 else 281 SCARG(&ap, nd) = SCARG(uap, nd); 282 283 SCARG(&ap, in) = SCARG(uap, in); 284 SCARG(&ap, ou) = SCARG(uap, ou); 285 SCARG(&ap, ex) = SCARG(uap, ex); 286 SCARG(&ap, tv) = SCARG(uap, tv); 287 /* Check for negative timeval */ 288 if (SCARG(&ap, tv)) { 289 error = copyin(SCARG(uap, tv), &atv, sizeof(atv)); 290 if (error) 291 goto done; 292 #ifdef DEBUG 293 /* Ultrix clients sometimes give negative timeouts? */ 294 if (atv.tv_sec < 0 || atv.tv_usec < 0) 295 printf("ultrix select( %ld, %ld): negative timeout\n", 296 atv.tv_sec, atv.tv_usec); 297 #endif 298 299 } 300 error = sys_select(l, &ap, retval); 301 if (error == EINVAL) 302 printf("ultrix select: bad args?\n"); 303 304 done: 305 return error; 306 } 307 308 #if defined(NFS) 309 int 310 async_daemon(struct lwp *l, const void *v, 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(l, &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(struct lwp *l, const struct ultrix_sys_mmap_args *uap, register_t *retval) 326 { 327 struct sys_mmap_args ouap; 328 329 /* 330 * Verify the arguments. 331 */ 332 if (SCARG(uap, prot) & ~(PROT_READ|PROT_WRITE|PROT_EXEC)) 333 return EINVAL; /* XXX still needed? */ 334 335 if ((SCARG(uap, flags) & SUN__MAP_NEW) == 0) 336 return EINVAL; 337 338 SCARG(&ouap, flags) = SCARG(uap, flags) & ~SUN__MAP_NEW; 339 SCARG(&ouap, addr) = SCARG(uap, addr); 340 SCARG(&ouap, len) = SCARG(uap, len); 341 SCARG(&ouap, prot) = SCARG(uap, prot); 342 SCARG(&ouap, fd) = SCARG(uap, fd); 343 SCARG(&ouap, pos) = SCARG(uap, pos); 344 345 return sys_mmap(l, &ouap, retval); 346 } 347 348 int 349 ultrix_sys_setsockopt(struct lwp *l, const struct ultrix_sys_setsockopt_args *uap, register_t *retval) 350 { 351 struct socket *so; 352 struct mbuf *m = NULL; 353 int error; 354 struct sys_setsockopt_args ap; 355 356 SCARG(&ap, s) = SCARG(uap, s); 357 SCARG(&ap, level) = SCARG(uap, level); 358 SCARG(&ap, name) = SCARG(uap, name); 359 SCARG(&ap, val) = SCARG(uap, val); 360 SCARG(&ap, valsize) = SCARG(uap, valsize); 361 362 /* getsock() will use the descriptor for us */ 363 if ((error = fd_getsock(SCARG(&ap, s), &so)) != 0) 364 return error; 365 #define SO_DONTLINGER (~SO_LINGER) 366 if (SCARG(&ap, name) == SO_DONTLINGER) { 367 m = m_get(M_WAIT, MT_SOOPTS); 368 mtod(m, struct linger *)->l_onoff = 0; 369 m->m_len = sizeof(struct linger); 370 error = sosetopt(so, SCARG(&ap, level), SO_LINGER, m); 371 } 372 if (SCARG(&ap, level) == IPPROTO_IP) { 373 #define EMUL_IP_MULTICAST_IF 2 374 #define EMUL_IP_MULTICAST_TTL 3 375 #define EMUL_IP_MULTICAST_LOOP 4 376 #define EMUL_IP_ADD_MEMBERSHIP 5 377 #define EMUL_IP_DROP_MEMBERSHIP 6 378 static const int ipoptxlat[] = { 379 IP_MULTICAST_IF, 380 IP_MULTICAST_TTL, 381 IP_MULTICAST_LOOP, 382 IP_ADD_MEMBERSHIP, 383 IP_DROP_MEMBERSHIP 384 }; 385 if (SCARG(&ap, name) >= EMUL_IP_MULTICAST_IF && 386 SCARG(&ap, name) <= EMUL_IP_DROP_MEMBERSHIP) { 387 SCARG(&ap, name) = 388 ipoptxlat[SCARG(&ap, name) - EMUL_IP_MULTICAST_IF]; 389 } 390 } 391 if (SCARG(&ap, valsize) > MLEN) { 392 error = EINVAL; 393 goto out; 394 } 395 if (SCARG(&ap, val)) { 396 m = m_get(M_WAIT, MT_SOOPTS); 397 error = copyin(SCARG(&ap, val), mtod(m, void *), 398 (u_int)SCARG(&ap, valsize)); 399 if (error) { 400 (void) m_free(m); 401 goto out; 402 } 403 m->m_len = SCARG(&ap, valsize); 404 } 405 error = sosetopt(so, SCARG(&ap, level), SCARG(&ap, name), m); 406 out: 407 fd_putfile(SCARG(uap, s)); 408 return error; 409 } 410 411 #define ULTRIX__SYS_NMLN 32 412 413 struct ultrix_utsname { 414 char sysname[ULTRIX__SYS_NMLN]; 415 char nodename[ULTRIX__SYS_NMLN]; 416 char release[ULTRIX__SYS_NMLN]; 417 char version[ULTRIX__SYS_NMLN]; 418 char machine[ULTRIX__SYS_NMLN]; 419 }; 420 421 int 422 ultrix_sys_uname(struct lwp *l, const struct ultrix_sys_uname_args *uap, register_t *retval) 423 { 424 struct ultrix_utsname sut; 425 const char *cp; 426 char *dp, *ep; 427 428 memset(&sut, 0, sizeof(sut)); 429 430 strncpy(sut.sysname, ostype, sizeof(sut.sysname) - 1); 431 strncpy(sut.nodename, hostname, sizeof(sut.nodename) - 1); 432 strncpy(sut.release, osrelease, sizeof(sut.release) - 1); 433 dp = sut.version; 434 ep = &sut.version[sizeof(sut.version) - 1]; 435 for (cp = version; *cp && *cp != '('; cp++) 436 ; 437 for (cp++; *cp && *cp != ')' && dp < ep; cp++) 438 *dp++ = *cp; 439 for (; *cp && *cp != '#'; cp++) 440 ; 441 for (; *cp && *cp != ':' && dp < ep; cp++) 442 *dp++ = *cp; 443 *dp = '\0'; 444 strncpy(sut.machine, machine, sizeof(sut.machine) - 1); 445 446 return copyout(&sut, SCARG(uap, name), sizeof(sut)); 447 } 448 449 int 450 ultrix_sys_setpgrp(struct lwp *l, const struct ultrix_sys_setpgrp_args *uap, register_t *retval) 451 { 452 struct proc *p = l->l_proc; 453 struct sys_setpgid_args ap; 454 455 SCARG(&ap, pid) = SCARG(uap, pid); 456 SCARG(&ap, pgid) = SCARG(uap, pgid); 457 /* 458 * difference to our setpgid call is to include backwards 459 * compatibility to pre-setsid() binaries. Do setsid() 460 * instead of setpgid() in those cases where the process 461 * tries to create a new session the old way. 462 */ 463 if (!SCARG(&ap, pgid) && 464 (!SCARG(&ap, pid) || SCARG(&ap, pid) == p->p_pid)) 465 return sys_setsid(l, &ap, retval); 466 else 467 return sys_setpgid(l, &ap, retval); 468 } 469 470 #if defined (NFSSERVER) 471 int 472 ultrix_sys_nfssvc(struct lwp *l, const struct ultrix_sys_nfssvc_args *uap, 473 register_t *retval) 474 { 475 476 #if 0 /* XXX */ 477 struct emul *e = p->p_emul; 478 struct sys_nfssvc_args outuap; 479 struct sockaddr sa; 480 int error; 481 void *sg = stackgap_init(p, 0); 482 483 memset(&outuap, 0, sizeof outuap); 484 SCARG(&outuap, fd) = SCARG(uap, fd); 485 SCARG(&outuap, mskval) = stackgap_alloc(p, &sg, sizeof sa); 486 SCARG(&outuap, msklen) = sizeof sa; 487 SCARG(&outuap, mtchval) = stackgap_alloc(p, &sg, sizeof sa); 488 SCARG(&outuap, mtchlen) = sizeof sa; 489 490 memset(&sa, 0, sizeof sa); 491 if (error = copyout(&sa, SCARG(&outuap, mskval), SCARG(&outuap, msklen))) 492 return error; 493 if (error = copyout(&sa, SCARG(&outuap, mtchval), SCARG(&outuap, mtchlen))) 494 return error; 495 496 return nfssvc(l, &outuap, retval); 497 #else 498 return ENOSYS; 499 #endif 500 } 501 #endif /* NFSSERVER */ 502 503 struct ultrix_ustat { 504 daddr_t f_tfree; /* total free */ 505 uint32_t f_tinode; /* total inodes free */ 506 char f_fname[6]; /* filsys name */ 507 char f_fpack[6]; /* filsys pack name */ 508 }; 509 510 int 511 ultrix_sys_ustat(struct lwp *l, const struct ultrix_sys_ustat_args *uap, register_t *retval) 512 { 513 struct ultrix_ustat us; 514 int error; 515 516 memset(&us, 0, sizeof us); 517 518 /* 519 * XXX: should set f_tfree and f_tinode at least 520 * How do we translate dev -> fstat? (and then to ultrix_ustat) 521 */ 522 523 if ((error = copyout(&us, SCARG(uap, buf), sizeof us)) != 0) 524 return error; 525 return 0; 526 } 527 528 int 529 ultrix_sys_quotactl(struct lwp *l, const struct ultrix_sys_quotactl_args *uap, register_t *retval) 530 { 531 532 return EINVAL; 533 } 534 535 int 536 ultrix_sys_vhangup(struct lwp *l, const void *uap, register_t *retval) 537 { 538 539 return 0; 540 } 541 542 543 /* 544 * RISC Ultrix cache control syscalls 545 */ 546 #ifdef __mips 547 int 548 ultrix_sys_cacheflush(struct lwp *l, const struct ultrix_sys_cacheflush_args *uap, register_t *retval) 549 { 550 /* { 551 syscallarg(void *) addr; 552 syscallarg(unsigned) nbytes; 553 syscallarg(int) flag; 554 } */ 555 struct proc *p = l->l_proc; 556 vaddr_t va = (vaddr_t)SCARG(uap, addr); 557 int nbytes = SCARG(uap, nbytes); 558 int whichcache = SCARG(uap, whichcache); 559 560 return mips_user_cacheflush(p, va, nbytes, whichcache); 561 } 562 563 564 int 565 ultrix_sys_cachectl(struct lwp *l, const struct ultrix_sys_cachectl_args *uap, register_t *retval) 566 { 567 /* { 568 syscallarg(void *) addr; 569 syscallarg(int) nbytes; 570 syscallarg(int) cacheop; 571 } */ 572 struct proc *p = l->l_proc; 573 vaddr_t va = (vaddr_t)SCARG(uap, addr); 574 int nbytes = SCARG(uap, nbytes); 575 int cacheop = SCARG(uap, cacheop); 576 577 return mips_user_cachectl(p, va, nbytes, cacheop); 578 } 579 580 #endif /* __mips */ 581 582 583 int 584 ultrix_sys_exportfs(struct lwp *l, const struct ultrix_sys_exportfs_args *uap, register_t *retval) 585 { 586 587 /* 588 * XXX: should perhaps translate into a mount(2) 589 * with MOUNT_EXPORT? 590 */ 591 return 0; 592 } 593 594 int 595 ultrix_sys_sigpending(struct lwp *l, const struct ultrix_sys_sigpending_args *uap, register_t *retval) 596 { 597 sigset_t ss; 598 int mask; 599 600 sigpending1(l, &ss); 601 mask = ss.__bits[0]; 602 603 return copyout(&mask, SCARG(uap, mask), sizeof(int)); 604 } 605 606 int 607 ultrix_sys_sigreturn(struct lwp *l, const struct ultrix_sys_sigreturn_args *uap, register_t *retval) 608 { 609 /* struct sigcontext13 is close enough to Ultrix */ 610 struct compat_13_sys_sigreturn_args ap; 611 612 SCARG(&ap, sigcntxp) = (void *)SCARG(uap, sigcntxp); 613 614 return compat_13_sys_sigreturn(l, &ap, retval); 615 } 616 617 int 618 ultrix_sys_sigcleanup(struct lwp *l, const struct ultrix_sys_sigcleanup_args *uap, register_t *retval) 619 { 620 621 /* struct sigcontext13 is close enough to Ultrix */ 622 struct compat_13_sys_sigreturn_args ap; 623 624 SCARG(&ap, sigcntxp) = (void *)SCARG(uap, sigcntxp); 625 626 return compat_13_sys_sigreturn(l, &ap, retval); 627 } 628 629 int 630 ultrix_sys_sigsuspend(struct lwp *l, const struct ultrix_sys_sigsuspend_args *uap, register_t *retval) 631 { 632 int mask = SCARG(uap, mask); 633 sigset_t ss; 634 635 ss.__bits[0] = mask; 636 ss.__bits[1] = 0; 637 ss.__bits[2] = 0; 638 ss.__bits[3] = 0; 639 640 return sigsuspend1(l, &ss); 641 } 642 643 #define ULTRIX_SV_ONSTACK 0x0001 /* take signal on signal stack */ 644 #define ULTRIX_SV_INTERRUPT 0x0002 /* do not restart system on signal return */ 645 #define ULTRIX_SV_OLDSIG 0x1000 /* Emulate old signal() for POSIX */ 646 647 int 648 ultrix_sys_sigvec(struct lwp *l, const struct ultrix_sys_sigvec_args *uap, register_t *retval) 649 { 650 struct sigvec nsv, osv; 651 struct sigaction nsa, osa; 652 int error; 653 654 if (SCARG(uap, nsv)) { 655 error = copyin(SCARG(uap, nsv), &nsv, sizeof(nsv)); 656 if (error) 657 return error; 658 nsa.sa_handler = nsv.sv_handler; 659 #if 0 /* documentation */ 660 /* ONSTACK is identical */ 661 nsa.sa_flags = nsv.sv_flags & ULTRIX_SV_ONSTACK; 662 if ((nsv.sv_flags & ULTRIX_SV_OLDSIG) 663 /* old signal() - always restart */ 664 || (!(nsv.sv_flags & ULTRIX_SV_INTERRUPT)) 665 /* inverted meaning (same bit) */ 666 ) 667 nsa.sa_flags |= SA_RESTART; 668 #else /* optimized - assuming ULTRIX_SV_OLDSIG=>!ULTRIX_SV_INTERRUPT */ 669 nsa.sa_flags = nsv.sv_flags & ~ULTRIX_SV_OLDSIG; 670 nsa.sa_flags ^= SA_RESTART; 671 #endif 672 native_sigset13_to_sigset(&nsv.sv_mask, &nsa.sa_mask); 673 } 674 error = sigaction1(l, SCARG(uap, signum), 675 SCARG(uap, nsv) ? &nsa : 0, SCARG(uap, osv) ? &osa : 0, 676 NULL, 0); 677 if (error) 678 return error; 679 if (SCARG(uap, osv)) { 680 osv.sv_handler = osa.sa_handler; 681 osv.sv_flags = osa.sa_flags ^ SA_RESTART; 682 osv.sv_flags &= (ULTRIX_SV_ONSTACK | ULTRIX_SV_INTERRUPT); 683 native_sigset_to_sigset13(&osa.sa_mask, &osv.sv_mask); 684 error = copyout(&osv, SCARG(uap, osv), sizeof(osv)); 685 if (error) 686 return error; 687 } 688 return 0; 689 } 690 691 int 692 ultrix_sys_shmsys(struct lwp *l, const struct ultrix_sys_shmsys_args *uap, register_t *retval) 693 { 694 695 #ifdef SYSVSHM 696 /* Ultrix SVSHM weirndess: */ 697 struct sys_shmat_args shmat_args; 698 struct compat_14_sys_shmctl_args shmctl_args; 699 struct sys_shmdt_args shmdt_args; 700 struct sys_shmget_args shmget_args; 701 702 703 switch (SCARG(uap, shmop)) { 704 case 0: /* Ultrix shmat() */ 705 SCARG(&shmat_args, shmid) = SCARG(uap, a2); 706 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a3); 707 SCARG(&shmat_args, shmflg) = SCARG(uap, a4); 708 return sys_shmat(l, &shmat_args, retval); 709 710 case 1: /* Ultrix shmctl() */ 711 SCARG(&shmctl_args, shmid) = SCARG(uap, a2); 712 SCARG(&shmctl_args, cmd) = SCARG(uap, a3); 713 SCARG(&shmctl_args, buf) = (struct shmid_ds14 *)SCARG(uap, a4); 714 return compat_14_sys_shmctl(l, &shmctl_args, retval); 715 716 case 2: /* Ultrix shmdt() */ 717 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a2); 718 return sys_shmdt(l, &shmdt_args, retval); 719 720 case 3: /* Ultrix shmget() */ 721 SCARG(&shmget_args, key) = SCARG(uap, a2); 722 SCARG(&shmget_args, size) = SCARG(uap, a3); 723 SCARG(&shmget_args, shmflg) = SCARG(uap, a4) 724 & (IPC_CREAT|IPC_EXCL|IPC_NOWAIT); 725 return sys_shmget(l, &shmget_args, retval); 726 727 default: 728 return EINVAL; 729 } 730 #else 731 return EOPNOTSUPP; 732 #endif /* SYSVSHM */ 733 } 734 735 static int 736 ultrix_to_bsd_flock(struct ultrix_flock *ufl, struct flock *fl) 737 { 738 739 fl->l_start = ufl->l_start; 740 fl->l_len = ufl->l_len; 741 fl->l_pid = ufl->l_pid; 742 fl->l_whence = ufl->l_whence; 743 744 switch (ufl->l_type) { 745 case ULTRIX_F_RDLCK: 746 fl->l_type = F_RDLCK; 747 break; 748 case ULTRIX_F_WRLCK: 749 fl->l_type = F_WRLCK; 750 break; 751 case ULTRIX_F_UNLCK: 752 fl->l_type = F_UNLCK; 753 break; 754 default: 755 return EINVAL; 756 } 757 758 return 0; 759 } 760 761 static void 762 bsd_to_ultrix_flock(struct flock *fl, struct ultrix_flock *ufl) 763 { 764 765 ufl->l_start = fl->l_start; 766 ufl->l_len = fl->l_len; 767 ufl->l_pid = fl->l_pid; 768 ufl->l_whence = fl->l_whence; 769 770 switch (fl->l_type) { 771 case F_RDLCK: 772 ufl->l_type = ULTRIX_F_RDLCK; 773 break; 774 case F_WRLCK: 775 ufl->l_type = ULTRIX_F_WRLCK; 776 break; 777 case F_UNLCK: 778 ufl->l_type = ULTRIX_F_UNLCK; 779 break; 780 } 781 } 782 783 int 784 ultrix_sys_fcntl(struct lwp *l, const struct ultrix_sys_fcntl_args *uap, register_t *retval) 785 { 786 int error; 787 struct ultrix_flock ufl; 788 struct flock fl; 789 790 switch (SCARG(uap, cmd)) { 791 case F_GETLK: 792 case F_SETLK: 793 case F_SETLKW: 794 error = copyin(SCARG(uap, arg), &ufl, sizeof(ufl)); 795 if (error) 796 return error; 797 error = ultrix_to_bsd_flock(&ufl, &fl); 798 if (error) 799 return error; 800 error = do_fcntl_lock(SCARG(uap, fd), SCARG(uap, cmd), &fl); 801 if (SCARG(uap, cmd) != F_GETLK || error != 0) 802 return error; 803 bsd_to_ultrix_flock(&fl, &ufl); 804 return copyout(&ufl, SCARG(uap, arg), sizeof(ufl)); 805 806 default: 807 break; 808 } 809 810 return sys_fcntl(l, (const void *)uap, retval); 811 } 812
Indexes created Fri Oct 03 02:09:57 GMT 2025