ultrix_misc.c revision 1.112.4.2
1 /* $NetBSD: ultrix_misc.c,v 1.112.4.2 2008/05/14 01:35:12 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 1.112.4.2 2008/05/14 01:35:12 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/syscallargs.h> 125 126 #include <uvm/uvm_extern.h> 127 128 #include <compat/ultrix/ultrix_syscall.h> 129 #include <compat/ultrix/ultrix_syscallargs.h> 130 #include <compat/common/compat_util.h> 131 132 #include <netinet/in.h> 133 134 #include <miscfs/specfs/specdev.h> 135 136 #include <nfs/rpcv2.h> 137 #include <nfs/nfsproto.h> 138 #include <nfs/nfs.h> 139 140 #include <sys/socketvar.h> /* sosetopt() */ 141 142 #include <compat/ultrix/ultrix_flock.h> 143 144 #include <compat/sys/signal.h> 145 #include <compat/sys/signalvar.h> 146 147 #ifdef __mips 148 #include <mips/cachectl.h> 149 #include <mips/frame.h> 150 #endif 151 152 static int ultrix_to_bsd_flock(struct ultrix_flock *, struct flock *); 153 static void bsd_to_ultrix_flock(struct flock *, struct ultrix_flock *); 154 155 extern struct sysent ultrix_sysent[]; 156 extern const char * const ultrix_syscallnames[]; 157 extern char ultrix_sigcode[], ultrix_esigcode[]; 158 159 struct uvm_object *emul_ultrix_object; 160 161 #ifndef __HAVE_SYSCALL_INTERN 162 void syscall(void); 163 #endif 164 165 const struct emul emul_ultrix = { 166 "ultrix", 167 "/emul/ultrix", 168 #ifndef __HAVE_MINIMAL_EMUL 169 0, 170 NULL, 171 ULTRIX_SYS_syscall, 172 ULTRIX_SYS_NSYSENT, 173 #endif 174 ultrix_sysent, 175 ultrix_syscallnames, 176 #ifdef __mips 177 sendsig_sigcontext, 178 #else /* vax */ 179 sendsig, 180 #endif 181 trapsignal, 182 NULL, 183 ultrix_sigcode, 184 ultrix_esigcode, 185 &emul_ultrix_object, 186 setregs, 187 NULL, 188 NULL, 189 NULL, 190 NULL, 191 NULL, 192 #ifdef __HAVE_SYSCALL_INTERN 193 syscall_intern, 194 #else 195 syscall, 196 #endif 197 NULL, 198 NULL, 199 200 uvm_default_mapaddr, 201 NULL, 202 NULL, 203 0, 204 NULL 205 }; 206 207 #define GSI_PROG_ENV 1 208 209 int 210 ultrix_sys_getsysinfo(struct lwp *l, const struct ultrix_sys_getsysinfo_args *uap, register_t *retval) 211 { 212 static short progenv = 0; 213 214 switch (SCARG(uap, op)) { 215 /* operations implemented: */ 216 case GSI_PROG_ENV: 217 if (SCARG(uap, nbytes) < sizeof(short)) 218 return EINVAL; 219 *retval = 1; 220 return copyout(&progenv, SCARG(uap, buffer), sizeof(progenv)); 221 default: 222 *retval = 0; /* info unavail */ 223 return 0; 224 } 225 } 226 227 int 228 ultrix_sys_setsysinfo(struct lwp *l, const struct ultrix_sys_setsysinfo_args *uap, register_t *retval) 229 { 230 231 *retval = 0; 232 return 0; 233 } 234 235 int 236 ultrix_sys_waitpid(struct lwp *l, const struct ultrix_sys_waitpid_args *uap, register_t *retval) 237 { 238 struct sys_wait4_args ap; 239 240 SCARG(&ap, pid) = SCARG(uap, pid); 241 SCARG(&ap, status) = SCARG(uap, status); 242 SCARG(&ap, options) = SCARG(uap, options); 243 SCARG(&ap, rusage) = 0; 244 245 return sys_wait4(l, &ap, retval); 246 } 247 248 int 249 ultrix_sys_wait3(struct lwp *l, const struct ultrix_sys_wait3_args *uap, register_t *retval) 250 { 251 struct sys_wait4_args ap; 252 253 SCARG(&ap, pid) = -1; 254 SCARG(&ap, status) = SCARG(uap, status); 255 SCARG(&ap, options) = SCARG(uap, options); 256 SCARG(&ap, rusage) = SCARG(uap, rusage); 257 258 return sys_wait4(l, &ap, 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(struct lwp *l, const struct ultrix_sys_select_args *uap, register_t *retval) 270 { 271 struct timeval atv; 272 int error; 273 struct sys_select_args ap; 274 275 /* Limit number of FDs selected on to the native maximum */ 276 277 if (SCARG(uap, nd) > FD_SETSIZE) 278 SCARG(&ap, nd) = FD_SETSIZE; 279 else 280 SCARG(&ap, nd) = SCARG(uap, nd); 281 282 SCARG(&ap, in) = SCARG(uap, in); 283 SCARG(&ap, ou) = SCARG(uap, ou); 284 SCARG(&ap, ex) = SCARG(uap, ex); 285 SCARG(&ap, tv) = SCARG(uap, tv); 286 /* Check for negative timeval */ 287 if (SCARG(&ap, tv)) { 288 error = copyin(SCARG(uap, tv), &atv, 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, &ap, 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(struct lwp *l, const void *v, register_t *retval) 310 { 311 struct sys_nfssvc_args ouap; 312 313 SCARG(&ouap, flag) = NFSSVC_BIOD; 314 SCARG(&ouap, argp) = NULL; 315 316 return sys_nfssvc(l, &ouap, retval); 317 } 318 #endif /* NFS */ 319 320 321 #define SUN__MAP_NEW 0x80000000 /* if not, old mmap & cannot handle */ 322 323 int 324 ultrix_sys_mmap(struct lwp *l, const struct ultrix_sys_mmap_args *uap, register_t *retval) 325 { 326 struct sys_mmap_args ouap; 327 328 /* 329 * Verify the arguments. 330 */ 331 if (SCARG(uap, prot) & ~(PROT_READ|PROT_WRITE|PROT_EXEC)) 332 return EINVAL; /* XXX still needed? */ 333 334 if ((SCARG(uap, flags) & SUN__MAP_NEW) == 0) 335 return EINVAL; 336 337 SCARG(&ouap, flags) = SCARG(uap, flags) & ~SUN__MAP_NEW; 338 SCARG(&ouap, addr) = SCARG(uap, addr); 339 SCARG(&ouap, len) = SCARG(uap, len); 340 SCARG(&ouap, prot) = SCARG(uap, prot); 341 SCARG(&ouap, fd) = SCARG(uap, fd); 342 SCARG(&ouap, pos) = SCARG(uap, pos); 343 344 return sys_mmap(l, &ouap, retval); 345 } 346 347 int 348 ultrix_sys_setsockopt(struct lwp *l, const struct ultrix_sys_setsockopt_args *uap, register_t *retval) 349 { 350 struct socket *so; 351 struct mbuf *m = NULL; 352 int error; 353 struct sys_setsockopt_args ap; 354 355 SCARG(&ap, s) = SCARG(uap, s); 356 SCARG(&ap, level) = SCARG(uap, level); 357 SCARG(&ap, name) = SCARG(uap, name); 358 SCARG(&ap, val) = SCARG(uap, val); 359 SCARG(&ap, valsize) = SCARG(uap, valsize); 360 361 /* getsock() will use the descriptor for us */ 362 if ((error = fd_getsock(SCARG(&ap, s), &so)) != 0) 363 return error; 364 #define SO_DONTLINGER (~SO_LINGER) 365 if (SCARG(&ap, name) == SO_DONTLINGER) { 366 m = m_get(M_WAIT, MT_SOOPTS); 367 mtod(m, struct linger *)->l_onoff = 0; 368 m->m_len = sizeof(struct linger); 369 error = sosetopt(so, SCARG(&ap, level), SO_LINGER, m); 370 } 371 if (SCARG(&ap, level) == IPPROTO_IP) { 372 #define EMUL_IP_MULTICAST_IF 2 373 #define EMUL_IP_MULTICAST_TTL 3 374 #define EMUL_IP_MULTICAST_LOOP 4 375 #define EMUL_IP_ADD_MEMBERSHIP 5 376 #define EMUL_IP_DROP_MEMBERSHIP 6 377 static const int ipoptxlat[] = { 378 IP_MULTICAST_IF, 379 IP_MULTICAST_TTL, 380 IP_MULTICAST_LOOP, 381 IP_ADD_MEMBERSHIP, 382 IP_DROP_MEMBERSHIP 383 }; 384 if (SCARG(&ap, name) >= EMUL_IP_MULTICAST_IF && 385 SCARG(&ap, name) <= EMUL_IP_DROP_MEMBERSHIP) { 386 SCARG(&ap, name) = 387 ipoptxlat[SCARG(&ap, name) - EMUL_IP_MULTICAST_IF]; 388 } 389 } 390 if (SCARG(&ap, valsize) > MLEN) { 391 error = EINVAL; 392 goto out; 393 } 394 if (SCARG(&ap, val)) { 395 m = m_get(M_WAIT, MT_SOOPTS); 396 error = copyin(SCARG(&ap, val), mtod(m, void *), 397 (u_int)SCARG(&ap, valsize)); 398 if (error) { 399 (void) m_free(m); 400 goto out; 401 } 402 m->m_len = SCARG(&ap, valsize); 403 } 404 error = sosetopt(so, SCARG(&ap, level), SCARG(&ap, name), m); 405 out: 406 fd_putfile(SCARG(uap, s)); 407 return error; 408 } 409 410 #define ULTRIX__SYS_NMLN 32 411 412 struct ultrix_utsname { 413 char sysname[ULTRIX__SYS_NMLN]; 414 char nodename[ULTRIX__SYS_NMLN]; 415 char release[ULTRIX__SYS_NMLN]; 416 char version[ULTRIX__SYS_NMLN]; 417 char machine[ULTRIX__SYS_NMLN]; 418 }; 419 420 int 421 ultrix_sys_uname(struct lwp *l, const struct ultrix_sys_uname_args *uap, register_t *retval) 422 { 423 struct ultrix_utsname sut; 424 const char *cp; 425 char *dp, *ep; 426 427 memset(&sut, 0, sizeof(sut)); 428 429 strncpy(sut.sysname, ostype, sizeof(sut.sysname) - 1); 430 strncpy(sut.nodename, hostname, sizeof(sut.nodename) - 1); 431 strncpy(sut.release, osrelease, sizeof(sut.release) - 1); 432 dp = sut.version; 433 ep = &sut.version[sizeof(sut.version) - 1]; 434 for (cp = version; *cp && *cp != '('; cp++) 435 ; 436 for (cp++; *cp && *cp != ')' && dp < ep; cp++) 437 *dp++ = *cp; 438 for (; *cp && *cp != '#'; cp++) 439 ; 440 for (; *cp && *cp != ':' && dp < ep; cp++) 441 *dp++ = *cp; 442 *dp = '\0'; 443 strncpy(sut.machine, machine, sizeof(sut.machine) - 1); 444 445 return copyout(&sut, SCARG(uap, name), sizeof(sut)); 446 } 447 448 int 449 ultrix_sys_setpgrp(struct lwp *l, const struct ultrix_sys_setpgrp_args *uap, register_t *retval) 450 { 451 struct proc *p = l->l_proc; 452 struct sys_setpgid_args ap; 453 454 SCARG(&ap, pid) = SCARG(uap, pid); 455 SCARG(&ap, pgid) = SCARG(uap, pgid); 456 /* 457 * difference to our setpgid call is to include backwards 458 * compatibility to pre-setsid() binaries. Do setsid() 459 * instead of setpgid() in those cases where the process 460 * tries to create a new session the old way. 461 */ 462 if (!SCARG(&ap, pgid) && 463 (!SCARG(&ap, pid) || SCARG(&ap, pid) == p->p_pid)) 464 return sys_setsid(l, &ap, retval); 465 else 466 return sys_setpgid(l, &ap, retval); 467 } 468 469 #if defined (NFSSERVER) 470 int 471 ultrix_sys_nfssvc(struct lwp *l, const struct ultrix_sys_nfssvc_args *uap, 472 register_t *retval) 473 { 474 475 #if 0 /* XXX */ 476 struct emul *e = p->p_emul; 477 struct sys_nfssvc_args outuap; 478 struct sockaddr sa; 479 int error; 480 void *sg = stackgap_init(p, 0); 481 482 memset(&outuap, 0, sizeof outuap); 483 SCARG(&outuap, fd) = SCARG(uap, fd); 484 SCARG(&outuap, mskval) = stackgap_alloc(p, &sg, sizeof sa); 485 SCARG(&outuap, msklen) = sizeof sa; 486 SCARG(&outuap, mtchval) = stackgap_alloc(p, &sg, sizeof sa); 487 SCARG(&outuap, mtchlen) = sizeof sa; 488 489 memset(&sa, 0, sizeof sa); 490 if (error = copyout(&sa, SCARG(&outuap, mskval), SCARG(&outuap, msklen))) 491 return error; 492 if (error = copyout(&sa, SCARG(&outuap, mtchval), SCARG(&outuap, mtchlen))) 493 return error; 494 495 return nfssvc(l, &outuap, retval); 496 #else 497 return ENOSYS; 498 #endif 499 } 500 #endif /* NFSSERVER */ 501 502 struct ultrix_ustat { 503 daddr_t f_tfree; /* total free */ 504 uint32_t f_tinode; /* total inodes free */ 505 char f_fname[6]; /* filsys name */ 506 char f_fpack[6]; /* filsys pack name */ 507 }; 508 509 int 510 ultrix_sys_ustat(struct lwp *l, const struct ultrix_sys_ustat_args *uap, register_t *retval) 511 { 512 struct ultrix_ustat us; 513 int error; 514 515 memset(&us, 0, sizeof us); 516 517 /* 518 * XXX: should set f_tfree and f_tinode at least 519 * How do we translate dev -> fstat? (and then to ultrix_ustat) 520 */ 521 522 if ((error = copyout(&us, SCARG(uap, buf), sizeof us)) != 0) 523 return error; 524 return 0; 525 } 526 527 int 528 ultrix_sys_quotactl(struct lwp *l, const struct ultrix_sys_quotactl_args *uap, register_t *retval) 529 { 530 531 return EINVAL; 532 } 533 534 int 535 ultrix_sys_vhangup(struct lwp *l, const void *uap, register_t *retval) 536 { 537 538 return 0; 539 } 540 541 542 /* 543 * RISC Ultrix cache control syscalls 544 */ 545 #ifdef __mips 546 int 547 ultrix_sys_cacheflush(struct lwp *l, const struct ultrix_sys_cacheflush_args *uap, register_t *retval) 548 { 549 /* { 550 syscallarg(void *) addr; 551 syscallarg(unsigned) nbytes; 552 syscallarg(int) flag; 553 } */ 554 struct proc *p = l->l_proc; 555 vaddr_t va = (vaddr_t)SCARG(uap, addr); 556 int nbytes = SCARG(uap, nbytes); 557 int whichcache = SCARG(uap, whichcache); 558 559 return mips_user_cacheflush(p, va, nbytes, whichcache); 560 } 561 562 563 int 564 ultrix_sys_cachectl(struct lwp *l, const struct ultrix_sys_cachectl_args *uap, register_t *retval) 565 { 566 /* { 567 syscallarg(void *) addr; 568 syscallarg(int) nbytes; 569 syscallarg(int) cacheop; 570 } */ 571 struct proc *p = l->l_proc; 572 vaddr_t va = (vaddr_t)SCARG(uap, addr); 573 int nbytes = SCARG(uap, nbytes); 574 int cacheop = SCARG(uap, cacheop); 575 576 return mips_user_cachectl(p, va, nbytes, cacheop); 577 } 578 579 #endif /* __mips */ 580 581 582 int 583 ultrix_sys_exportfs(struct lwp *l, const struct ultrix_sys_exportfs_args *uap, register_t *retval) 584 { 585 586 /* 587 * XXX: should perhaps translate into a mount(2) 588 * with MOUNT_EXPORT? 589 */ 590 return 0; 591 } 592 593 int 594 ultrix_sys_sigpending(struct lwp *l, const struct ultrix_sys_sigpending_args *uap, register_t *retval) 595 { 596 sigset_t ss; 597 int mask; 598 599 sigpending1(l, &ss); 600 mask = ss.__bits[0]; 601 602 return copyout(&mask, SCARG(uap, mask), sizeof(int)); 603 } 604 605 int 606 ultrix_sys_sigreturn(struct lwp *l, const struct ultrix_sys_sigreturn_args *uap, register_t *retval) 607 { 608 /* struct sigcontext13 is close enough to Ultrix */ 609 struct compat_13_sys_sigreturn_args ap; 610 611 SCARG(&ap, sigcntxp) = (void *)SCARG(uap, sigcntxp); 612 613 return compat_13_sys_sigreturn(l, &ap, retval); 614 } 615 616 int 617 ultrix_sys_sigcleanup(struct lwp *l, const struct ultrix_sys_sigcleanup_args *uap, register_t *retval) 618 { 619 620 /* struct sigcontext13 is close enough to Ultrix */ 621 struct compat_13_sys_sigreturn_args ap; 622 623 SCARG(&ap, sigcntxp) = (void *)SCARG(uap, sigcntxp); 624 625 return compat_13_sys_sigreturn(l, &ap, retval); 626 } 627 628 int 629 ultrix_sys_sigsuspend(struct lwp *l, const struct ultrix_sys_sigsuspend_args *uap, register_t *retval) 630 { 631 int mask = SCARG(uap, mask); 632 sigset_t ss; 633 634 ss.__bits[0] = mask; 635 ss.__bits[1] = 0; 636 ss.__bits[2] = 0; 637 ss.__bits[3] = 0; 638 639 return sigsuspend1(l, &ss); 640 } 641 642 #define ULTRIX_SV_ONSTACK 0x0001 /* take signal on signal stack */ 643 #define ULTRIX_SV_INTERRUPT 0x0002 /* do not restart system on signal return */ 644 #define ULTRIX_SV_OLDSIG 0x1000 /* Emulate old signal() for POSIX */ 645 646 int 647 ultrix_sys_sigvec(struct lwp *l, const struct ultrix_sys_sigvec_args *uap, register_t *retval) 648 { 649 struct sigvec nsv, osv; 650 struct sigaction nsa, osa; 651 int error; 652 653 if (SCARG(uap, nsv)) { 654 error = copyin(SCARG(uap, nsv), &nsv, sizeof(nsv)); 655 if (error) 656 return error; 657 nsa.sa_handler = nsv.sv_handler; 658 #if 0 /* documentation */ 659 /* ONSTACK is identical */ 660 nsa.sa_flags = nsv.sv_flags & ULTRIX_SV_ONSTACK; 661 if ((nsv.sv_flags & ULTRIX_SV_OLDSIG) 662 /* old signal() - always restart */ 663 || (!(nsv.sv_flags & ULTRIX_SV_INTERRUPT)) 664 /* inverted meaning (same bit) */ 665 ) 666 nsa.sa_flags |= SA_RESTART; 667 #else /* optimized - assuming ULTRIX_SV_OLDSIG=>!ULTRIX_SV_INTERRUPT */ 668 nsa.sa_flags = nsv.sv_flags & ~ULTRIX_SV_OLDSIG; 669 nsa.sa_flags ^= SA_RESTART; 670 #endif 671 native_sigset13_to_sigset(&nsv.sv_mask, &nsa.sa_mask); 672 } 673 error = sigaction1(l, SCARG(uap, signum), 674 SCARG(uap, nsv) ? &nsa : 0, SCARG(uap, osv) ? &osa : 0, 675 NULL, 0); 676 if (error) 677 return error; 678 if (SCARG(uap, osv)) { 679 osv.sv_handler = osa.sa_handler; 680 osv.sv_flags = osa.sa_flags ^ SA_RESTART; 681 osv.sv_flags &= (ULTRIX_SV_ONSTACK | ULTRIX_SV_INTERRUPT); 682 native_sigset_to_sigset13(&osa.sa_mask, &osv.sv_mask); 683 error = copyout(&osv, SCARG(uap, osv), sizeof(osv)); 684 if (error) 685 return error; 686 } 687 return 0; 688 } 689 690 int 691 ultrix_sys_shmsys(struct lwp *l, const struct ultrix_sys_shmsys_args *uap, register_t *retval) 692 { 693 694 #ifdef SYSVSHM 695 /* Ultrix SVSHM weirndess: */ 696 struct sys_shmat_args shmat_args; 697 struct compat_14_sys_shmctl_args shmctl_args; 698 struct sys_shmdt_args shmdt_args; 699 struct sys_shmget_args shmget_args; 700 701 702 switch (SCARG(uap, shmop)) { 703 case 0: /* Ultrix shmat() */ 704 SCARG(&shmat_args, shmid) = SCARG(uap, a2); 705 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a3); 706 SCARG(&shmat_args, shmflg) = SCARG(uap, a4); 707 return sys_shmat(l, &shmat_args, retval); 708 709 case 1: /* Ultrix shmctl() */ 710 SCARG(&shmctl_args, shmid) = SCARG(uap, a2); 711 SCARG(&shmctl_args, cmd) = SCARG(uap, a3); 712 SCARG(&shmctl_args, buf) = (struct shmid_ds14 *)SCARG(uap, a4); 713 return compat_14_sys_shmctl(l, &shmctl_args, retval); 714 715 case 2: /* Ultrix shmdt() */ 716 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a2); 717 return sys_shmdt(l, &shmdt_args, retval); 718 719 case 3: /* Ultrix shmget() */ 720 SCARG(&shmget_args, key) = SCARG(uap, a2); 721 SCARG(&shmget_args, size) = SCARG(uap, a3); 722 SCARG(&shmget_args, shmflg) = SCARG(uap, a4) 723 & (IPC_CREAT|IPC_EXCL|IPC_NOWAIT); 724 return sys_shmget(l, &shmget_args, retval); 725 726 default: 727 return EINVAL; 728 } 729 #else 730 return EOPNOTSUPP; 731 #endif /* SYSVSHM */ 732 } 733 734 static int 735 ultrix_to_bsd_flock(struct ultrix_flock *ufl, struct flock *fl) 736 { 737 738 fl->l_start = ufl->l_start; 739 fl->l_len = ufl->l_len; 740 fl->l_pid = ufl->l_pid; 741 fl->l_whence = ufl->l_whence; 742 743 switch (ufl->l_type) { 744 case ULTRIX_F_RDLCK: 745 fl->l_type = F_RDLCK; 746 break; 747 case ULTRIX_F_WRLCK: 748 fl->l_type = F_WRLCK; 749 break; 750 case ULTRIX_F_UNLCK: 751 fl->l_type = F_UNLCK; 752 break; 753 default: 754 return EINVAL; 755 } 756 757 return 0; 758 } 759 760 static void 761 bsd_to_ultrix_flock(struct flock *fl, struct ultrix_flock *ufl) 762 { 763 764 ufl->l_start = fl->l_start; 765 ufl->l_len = fl->l_len; 766 ufl->l_pid = fl->l_pid; 767 ufl->l_whence = fl->l_whence; 768 769 switch (fl->l_type) { 770 case F_RDLCK: 771 ufl->l_type = ULTRIX_F_RDLCK; 772 break; 773 case F_WRLCK: 774 ufl->l_type = ULTRIX_F_WRLCK; 775 break; 776 case F_UNLCK: 777 ufl->l_type = ULTRIX_F_UNLCK; 778 break; 779 } 780 } 781 782 int 783 ultrix_sys_fcntl(struct lwp *l, const struct ultrix_sys_fcntl_args *uap, register_t *retval) 784 { 785 int error; 786 struct ultrix_flock ufl; 787 struct flock fl; 788 789 switch (SCARG(uap, cmd)) { 790 case F_GETLK: 791 case F_SETLK: 792 case F_SETLKW: 793 error = copyin(SCARG(uap, arg), &ufl, sizeof(ufl)); 794 if (error) 795 return error; 796 error = ultrix_to_bsd_flock(&ufl, &fl); 797 if (error) 798 return error; 799 error = do_fcntl_lock(SCARG(uap, fd), SCARG(uap, cmd), &fl); 800 if (SCARG(uap, cmd) != F_GETLK || error != 0) 801 return error; 802 bsd_to_ultrix_flock(&fl, &ufl); 803 return copyout(&ufl, SCARG(uap, arg), sizeof(ufl)); 804 805 default: 806 break; 807 } 808 809 return sys_fcntl(l, (const void *)uap, retval); 810 } 811
Indexes created Fri Oct 03 02:09:57 GMT 2025