1 /* $NetBSD: ultrix_misc.c,v 1.117 2008/11/19 18:36:06 ad 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 1.117 2008/11/19 18:36:06 ad Exp $"); 80 81 #if defined(_KERNEL_OPT) 82 #include "opt_sysv.h" 83 #endif 84 85 #include <sys/cdefs.h> /* RCS ID & Copyright macro defns */ 86 87 /* 88 * Ultrix compatibility module. 89 * 90 * Ultrix system calls that are implemented differently in BSD are 91 * handled here. 92 */ 93 94 #if defined(_KERNEL_OPT) 95 #include "fs_nfs.h" 96 #endif 97 98 #include <sys/param.h> 99 #include <sys/systm.h> 100 #include <sys/namei.h> 101 #include <sys/dirent.h> 102 #include <sys/proc.h> 103 #include <sys/file.h> 104 #include <sys/filedesc.h> 105 #include <sys/kernel.h> 106 #include <sys/exec.h> 107 #include <sys/malloc.h> 108 #include <sys/mbuf.h> 109 #include <sys/mman.h> 110 #include <sys/mount.h> 111 #include <sys/resource.h> 112 #include <sys/resourcevar.h> 113 #include <sys/signal.h> 114 #include <sys/signalvar.h> 115 #include <sys/socket.h> 116 #include <sys/vnode.h> 117 #include <sys/uio.h> 118 #include <sys/wait.h> 119 #include <sys/utsname.h> 120 #include <sys/unistd.h> 121 #include <sys/ipc.h> 122 123 #include <sys/syscallargs.h> 124 125 #include <uvm/uvm_extern.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 #include <compat/sys/signal.h> 144 #include <compat/sys/signalvar.h> 145 146 #ifdef __mips 147 #include <mips/cachectl.h> 148 #include <mips/frame.h> 149 #endif 150 151 static int ultrix_to_bsd_flock(struct ultrix_flock *, struct flock *); 152 static void bsd_to_ultrix_flock(struct flock *, struct ultrix_flock *); 153 154 extern struct sysent ultrix_sysent[]; 155 extern const char * const ultrix_syscallnames[]; 156 extern char ultrix_sigcode[], ultrix_esigcode[]; 157 158 struct uvm_object *emul_ultrix_object; 159 160 #ifndef __HAVE_SYSCALL_INTERN 161 void syscall(void); 162 #endif 163 164 struct emul emul_ultrix = { 165 "ultrix", 166 "/emul/ultrix", 167 #ifndef __HAVE_MINIMAL_EMUL 168 0, 169 NULL, 170 ULTRIX_SYS_syscall, 171 ULTRIX_SYS_NSYSENT, 172 #endif 173 ultrix_sysent, 174 ultrix_syscallnames, 175 #ifdef __mips 176 sendsig_sigcontext, 177 #else /* vax */ 178 sendsig, 179 #endif 180 trapsignal, 181 NULL, 182 ultrix_sigcode, 183 ultrix_esigcode, 184 &emul_ultrix_object, 185 setregs, 186 NULL, 187 NULL, 188 NULL, 189 NULL, 190 NULL, 191 #ifdef __HAVE_SYSCALL_INTERN 192 syscall_intern, 193 #else 194 syscall, 195 #endif 196 NULL, 197 NULL, 198 199 uvm_default_mapaddr, 200 NULL, 201 NULL, 202 0, 203 NULL 204 }; 205 206 #define GSI_PROG_ENV 1 207 208 int 209 ultrix_sys_getsysinfo(struct lwp *l, const struct ultrix_sys_getsysinfo_args *uap, register_t *retval) 210 { 211 static short progenv = 0; 212 213 switch (SCARG(uap, op)) { 214 /* operations implemented: */ 215 case GSI_PROG_ENV: 216 if (SCARG(uap, nbytes) < sizeof(short)) 217 return EINVAL; 218 *retval = 1; 219 return copyout(&progenv, SCARG(uap, buffer), sizeof(progenv)); 220 default: 221 *retval = 0; /* info unavail */ 222 return 0; 223 } 224 } 225 226 int 227 ultrix_sys_setsysinfo(struct lwp *l, const struct ultrix_sys_setsysinfo_args *uap, register_t *retval) 228 { 229 230 *retval = 0; 231 return 0; 232 } 233 234 int 235 ultrix_sys_waitpid(struct lwp *l, const struct ultrix_sys_waitpid_args *uap, register_t *retval) 236 { 237 struct sys_wait4_args ap; 238 239 SCARG(&ap, pid) = SCARG(uap, pid); 240 SCARG(&ap, status) = SCARG(uap, status); 241 SCARG(&ap, options) = SCARG(uap, options); 242 SCARG(&ap, rusage) = 0; 243 244 return sys_wait4(l, &ap, retval); 245 } 246 247 int 248 ultrix_sys_wait3(struct lwp *l, const struct ultrix_sys_wait3_args *uap, register_t *retval) 249 { 250 struct sys_wait4_args ap; 251 252 SCARG(&ap, pid) = -1; 253 SCARG(&ap, status) = SCARG(uap, status); 254 SCARG(&ap, options) = SCARG(uap, options); 255 SCARG(&ap, rusage) = SCARG(uap, rusage); 256 257 return sys_wait4(l, &ap, retval); 258 } 259 260 /* 261 * Ultrix binaries pass in FD_MAX as the first arg to select(). 262 * On Ultrix, FD_MAX is 4096, which is more than the NetBSD sys_select() 263 * can handle. 264 * Since we can't have more than the (native) FD_MAX descriptors open, 265 * limit nfds to at most FD_MAX. 266 */ 267 int 268 ultrix_sys_select(struct lwp *l, const struct ultrix_sys_select_args *uap, register_t *retval) 269 { 270 struct timeval atv; 271 int error; 272 struct sys_select_args ap; 273 274 /* Limit number of FDs selected on to the native maximum */ 275 276 if (SCARG(uap, nd) > FD_SETSIZE) 277 SCARG(&ap, nd) = FD_SETSIZE; 278 else 279 SCARG(&ap, nd) = SCARG(uap, nd); 280 281 SCARG(&ap, in) = SCARG(uap, in); 282 SCARG(&ap, ou) = SCARG(uap, ou); 283 SCARG(&ap, ex) = SCARG(uap, ex); 284 SCARG(&ap, tv) = SCARG(uap, tv); 285 /* Check for negative timeval */ 286 if (SCARG(&ap, tv)) { 287 error = copyin(SCARG(uap, tv), &atv, sizeof(atv)); 288 if (error) 289 goto done; 290 #ifdef DEBUG 291 /* Ultrix clients sometimes give negative timeouts? */ 292 if (atv.tv_sec < 0 || atv.tv_usec < 0) 293 printf("ultrix select( %ld, %ld): negative timeout\n", 294 atv.tv_sec, atv.tv_usec); 295 #endif 296 297 } 298 error = sys_select(l, &ap, retval); 299 if (error == EINVAL) 300 printf("ultrix select: bad args?\n"); 301 302 done: 303 return error; 304 } 305 306 #if defined(NFS) 307 int 308 async_daemon(struct lwp *l, const void *v, register_t *retval) 309 { 310 struct sys_nfssvc_args ouap; 311 312 SCARG(&ouap, flag) = NFSSVC_BIOD; 313 SCARG(&ouap, argp) = NULL; 314 315 return sys_nfssvc(l, &ouap, retval); 316 } 317 #endif /* NFS */ 318 319 320 #define SUN__MAP_NEW 0x80000000 /* if not, old mmap & cannot handle */ 321 322 int 323 ultrix_sys_mmap(struct lwp *l, const struct ultrix_sys_mmap_args *uap, register_t *retval) 324 { 325 struct sys_mmap_args ouap; 326 327 /* 328 * Verify the arguments. 329 */ 330 if (SCARG(uap, prot) & ~(PROT_READ|PROT_WRITE|PROT_EXEC)) 331 return EINVAL; /* XXX still needed? */ 332 333 if ((SCARG(uap, flags) & SUN__MAP_NEW) == 0) 334 return EINVAL; 335 336 SCARG(&ouap, flags) = SCARG(uap, flags) & ~SUN__MAP_NEW; 337 SCARG(&ouap, addr) = SCARG(uap, addr); 338 SCARG(&ouap, len) = SCARG(uap, len); 339 SCARG(&ouap, prot) = SCARG(uap, prot); 340 SCARG(&ouap, fd) = SCARG(uap, fd); 341 SCARG(&ouap, pos) = SCARG(uap, pos); 342 343 return sys_mmap(l, &ouap, retval); 344 } 345 346 int 347 ultrix_sys_setsockopt(struct lwp *l, const struct ultrix_sys_setsockopt_args *uap, register_t *retval) 348 { 349 struct sockopt sopt; 350 struct socket *so; 351 int error; 352 struct sys_setsockopt_args ap; 353 354 SCARG(&ap, s) = SCARG(uap, s); 355 SCARG(&ap, level) = SCARG(uap, level); 356 SCARG(&ap, name) = SCARG(uap, name); 357 SCARG(&ap, val) = SCARG(uap, val); 358 SCARG(&ap, valsize) = SCARG(uap, valsize); 359 360 /* fd_getsock() will use the descriptor for us */ 361 if ((error = fd_getsock(SCARG(&ap, s), &so)) != 0) 362 return error; 363 #define SO_DONTLINGER (~SO_LINGER) 364 if (SCARG(&ap, name) == SO_DONTLINGER) { 365 struct linger lg; 366 367 lg.l_onoff = 0; 368 error = so_setsockopt(l, so, SCARG(&ap, level), SO_LINGER, 369 &lg, sizeof(lg)); 370 goto out; 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 sockopt_init(&sopt, SCARG(&ap, level), SCARG(&ap, name), 396 SCARG(&ap, valsize)); 397 if (SCARG(&ap, val)) { 398 error = copyin(SCARG(&ap, val), sopt.sopt_data, 399 (u_int)SCARG(&ap, valsize)); 400 } 401 if (error == 0) 402 error = sosetopt(so, &sopt); 403 sockopt_destroy(&sopt); 404 out: 405 fd_putfile(SCARG(uap, s)); 406 return error; 407 } 408 409 #define ULTRIX__SYS_NMLN 32 410 411 struct ultrix_utsname { 412 char sysname[ULTRIX__SYS_NMLN]; 413 char nodename[ULTRIX__SYS_NMLN]; 414 char release[ULTRIX__SYS_NMLN]; 415 char version[ULTRIX__SYS_NMLN]; 416 char machine[ULTRIX__SYS_NMLN]; 417 }; 418 419 int 420 ultrix_sys_uname(struct lwp *l, const struct ultrix_sys_uname_args *uap, register_t *retval) 421 { 422 struct ultrix_utsname sut; 423 const char *cp; 424 char *dp, *ep; 425 426 memset(&sut, 0, sizeof(sut)); 427 428 strncpy(sut.sysname, ostype, sizeof(sut.sysname) - 1); 429 strncpy(sut.nodename, hostname, sizeof(sut.nodename) - 1); 430 strncpy(sut.release, osrelease, sizeof(sut.release) - 1); 431 dp = sut.version; 432 ep = &sut.version[sizeof(sut.version) - 1]; 433 for (cp = version; *cp && *cp != '('; cp++) 434 ; 435 for (cp++; *cp && *cp != ')' && dp < ep; cp++) 436 *dp++ = *cp; 437 for (; *cp && *cp != '#'; cp++) 438 ; 439 for (; *cp && *cp != ':' && dp < ep; cp++) 440 *dp++ = *cp; 441 *dp = '\0'; 442 strncpy(sut.machine, machine, sizeof(sut.machine) - 1); 443 444 return copyout(&sut, SCARG(uap, name), sizeof(sut)); 445 } 446 447 int 448 ultrix_sys_setpgrp(struct lwp *l, const struct ultrix_sys_setpgrp_args *uap, register_t *retval) 449 { 450 struct proc *p = l->l_proc; 451 struct sys_setpgid_args ap; 452 453 SCARG(&ap, pid) = SCARG(uap, pid); 454 SCARG(&ap, pgid) = SCARG(uap, pgid); 455 /* 456 * difference to our setpgid call is to include backwards 457 * compatibility to pre-setsid() binaries. Do setsid() 458 * instead of setpgid() in those cases where the process 459 * tries to create a new session the old way. 460 */ 461 if (!SCARG(&ap, pgid) && 462 (!SCARG(&ap, pid) || SCARG(&ap, pid) == p->p_pid)) 463 return sys_setsid(l, &ap, retval); 464 else 465 return sys_setpgid(l, &ap, retval); 466 } 467 468 int 469 ultrix_sys_nfssvc(struct lwp *l, const struct ultrix_sys_nfssvc_args *uap, 470 register_t *retval) 471 { 472 473 #if 0 /* XXX */ 474 struct emul *e = p->p_emul; 475 struct sys_nfssvc_args outuap; 476 struct sockaddr sa; 477 int error; 478 void *sg = stackgap_init(p, 0); 479 480 memset(&outuap, 0, sizeof outuap); 481 SCARG(&outuap, fd) = SCARG(uap, fd); 482 SCARG(&outuap, mskval) = stackgap_alloc(p, &sg, sizeof sa); 483 SCARG(&outuap, msklen) = sizeof sa; 484 SCARG(&outuap, mtchval) = stackgap_alloc(p, &sg, sizeof sa); 485 SCARG(&outuap, mtchlen) = sizeof sa; 486 487 memset(&sa, 0, sizeof sa); 488 if (error = copyout(&sa, SCARG(&outuap, mskval), SCARG(&outuap, msklen))) 489 return error; 490 if (error = copyout(&sa, SCARG(&outuap, mtchval), SCARG(&outuap, mtchlen))) 491 return error; 492 493 return nfssvc(l, &outuap, retval); 494 #else 495 return ENOSYS; 496 #endif 497 } 498 499 struct ultrix_ustat { 500 daddr_t f_tfree; /* total free */ 501 uint32_t f_tinode; /* total inodes free */ 502 char f_fname[6]; /* filsys name */ 503 char f_fpack[6]; /* filsys pack name */ 504 }; 505 506 int 507 ultrix_sys_ustat(struct lwp *l, const struct ultrix_sys_ustat_args *uap, register_t *retval) 508 { 509 struct ultrix_ustat us; 510 int error; 511 512 memset(&us, 0, sizeof us); 513 514 /* 515 * XXX: should set f_tfree and f_tinode at least 516 * How do we translate dev -> fstat? (and then to ultrix_ustat) 517 */ 518 519 if ((error = copyout(&us, SCARG(uap, buf), sizeof us)) != 0) 520 return error; 521 return 0; 522 } 523 524 int 525 ultrix_sys_quotactl(struct lwp *l, const struct ultrix_sys_quotactl_args *uap, register_t *retval) 526 { 527 528 return EINVAL; 529 } 530 531 int 532 ultrix_sys_vhangup(struct lwp *l, const void *uap, register_t *retval) 533 { 534 535 return 0; 536 } 537 538 539 /* 540 * RISC Ultrix cache control syscalls 541 */ 542 #ifdef __mips 543 int 544 ultrix_sys_cacheflush(struct lwp *l, const struct ultrix_sys_cacheflush_args *uap, register_t *retval) 545 { 546 /* { 547 syscallarg(void *) addr; 548 syscallarg(unsigned) nbytes; 549 syscallarg(int) flag; 550 } */ 551 struct proc *p = l->l_proc; 552 vaddr_t va = (vaddr_t)SCARG(uap, addr); 553 int nbytes = SCARG(uap, nbytes); 554 int whichcache = SCARG(uap, whichcache); 555 556 return mips_user_cacheflush(p, va, nbytes, whichcache); 557 } 558 559 560 int 561 ultrix_sys_cachectl(struct lwp *l, const struct ultrix_sys_cachectl_args *uap, register_t *retval) 562 { 563 /* { 564 syscallarg(void *) addr; 565 syscallarg(int) nbytes; 566 syscallarg(int) cacheop; 567 } */ 568 struct proc *p = l->l_proc; 569 vaddr_t va = (vaddr_t)SCARG(uap, addr); 570 int nbytes = SCARG(uap, nbytes); 571 int cacheop = SCARG(uap, cacheop); 572 573 return mips_user_cachectl(p, va, nbytes, cacheop); 574 } 575 576 #endif /* __mips */ 577 578 579 int 580 ultrix_sys_exportfs(struct lwp *l, const struct ultrix_sys_exportfs_args *uap, register_t *retval) 581 { 582 583 /* 584 * XXX: should perhaps translate into a mount(2) 585 * with MOUNT_EXPORT? 586 */ 587 return 0; 588 } 589 590 int 591 ultrix_sys_sigpending(struct lwp *l, const struct ultrix_sys_sigpending_args *uap, register_t *retval) 592 { 593 sigset_t ss; 594 int mask; 595 596 sigpending1(l, &ss); 597 mask = ss.__bits[0]; 598 599 return copyout(&mask, SCARG(uap, mask), sizeof(int)); 600 } 601 602 int 603 ultrix_sys_sigreturn(struct lwp *l, const struct ultrix_sys_sigreturn_args *uap, register_t *retval) 604 { 605 /* struct sigcontext13 is close enough to Ultrix */ 606 struct compat_13_sys_sigreturn_args ap; 607 608 SCARG(&ap, sigcntxp) = (void *)SCARG(uap, sigcntxp); 609 610 return compat_13_sys_sigreturn(l, &ap, retval); 611 } 612 613 int 614 ultrix_sys_sigcleanup(struct lwp *l, const struct ultrix_sys_sigcleanup_args *uap, register_t *retval) 615 { 616 617 /* struct sigcontext13 is close enough to Ultrix */ 618 struct compat_13_sys_sigreturn_args ap; 619 620 SCARG(&ap, sigcntxp) = (void *)SCARG(uap, sigcntxp); 621 622 return compat_13_sys_sigreturn(l, &ap, retval); 623 } 624 625 int 626 ultrix_sys_sigsuspend(struct lwp *l, const struct ultrix_sys_sigsuspend_args *uap, register_t *retval) 627 { 628 int mask = SCARG(uap, mask); 629 sigset_t ss; 630 631 ss.__bits[0] = mask; 632 ss.__bits[1] = 0; 633 ss.__bits[2] = 0; 634 ss.__bits[3] = 0; 635 636 return sigsuspend1(l, &ss); 637 } 638 639 #define ULTRIX_SV_ONSTACK 0x0001 /* take signal on signal stack */ 640 #define ULTRIX_SV_INTERRUPT 0x0002 /* do not restart system on signal return */ 641 #define ULTRIX_SV_OLDSIG 0x1000 /* Emulate old signal() for POSIX */ 642 643 int 644 ultrix_sys_sigvec(struct lwp *l, const struct ultrix_sys_sigvec_args *uap, register_t *retval) 645 { 646 struct sigvec nsv, osv; 647 struct sigaction nsa, osa; 648 int error; 649 650 if (SCARG(uap, nsv)) { 651 error = copyin(SCARG(uap, nsv), &nsv, sizeof(nsv)); 652 if (error) 653 return error; 654 nsa.sa_handler = nsv.sv_handler; 655 #if 0 /* documentation */ 656 /* ONSTACK is identical */ 657 nsa.sa_flags = nsv.sv_flags & ULTRIX_SV_ONSTACK; 658 if ((nsv.sv_flags & ULTRIX_SV_OLDSIG) 659 /* old signal() - always restart */ 660 || (!(nsv.sv_flags & ULTRIX_SV_INTERRUPT)) 661 /* inverted meaning (same bit) */ 662 ) 663 nsa.sa_flags |= SA_RESTART; 664 #else /* optimized - assuming ULTRIX_SV_OLDSIG=>!ULTRIX_SV_INTERRUPT */ 665 nsa.sa_flags = nsv.sv_flags & ~ULTRIX_SV_OLDSIG; 666 nsa.sa_flags ^= SA_RESTART; 667 #endif 668 native_sigset13_to_sigset(&nsv.sv_mask, &nsa.sa_mask); 669 } 670 error = sigaction1(l, SCARG(uap, signum), 671 SCARG(uap, nsv) ? &nsa : 0, SCARG(uap, osv) ? &osa : 0, 672 NULL, 0); 673 if (error) 674 return error; 675 if (SCARG(uap, osv)) { 676 osv.sv_handler = osa.sa_handler; 677 osv.sv_flags = osa.sa_flags ^ SA_RESTART; 678 osv.sv_flags &= (ULTRIX_SV_ONSTACK | ULTRIX_SV_INTERRUPT); 679 native_sigset_to_sigset13(&osa.sa_mask, &osv.sv_mask); 680 error = copyout(&osv, SCARG(uap, osv), sizeof(osv)); 681 if (error) 682 return error; 683 } 684 return 0; 685 } 686 687 int 688 ultrix_sys_shmsys(struct lwp *l, const struct ultrix_sys_shmsys_args *uap, register_t *retval) 689 { 690 691 #ifdef SYSVSHM 692 /* Ultrix SVSHM weirndess: */ 693 struct sys_shmat_args shmat_args; 694 struct compat_14_sys_shmctl_args shmctl_args; 695 struct sys_shmdt_args shmdt_args; 696 struct sys_shmget_args shmget_args; 697 698 699 switch (SCARG(uap, shmop)) { 700 case 0: /* Ultrix shmat() */ 701 SCARG(&shmat_args, shmid) = SCARG(uap, a2); 702 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a3); 703 SCARG(&shmat_args, shmflg) = SCARG(uap, a4); 704 return sys_shmat(l, &shmat_args, retval); 705 706 case 1: /* Ultrix shmctl() */ 707 SCARG(&shmctl_args, shmid) = SCARG(uap, a2); 708 SCARG(&shmctl_args, cmd) = SCARG(uap, a3); 709 SCARG(&shmctl_args, buf) = (struct shmid_ds14 *)SCARG(uap, a4); 710 return compat_14_sys_shmctl(l, &shmctl_args, retval); 711 712 case 2: /* Ultrix shmdt() */ 713 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a2); 714 return sys_shmdt(l, &shmdt_args, retval); 715 716 case 3: /* Ultrix shmget() */ 717 SCARG(&shmget_args, key) = SCARG(uap, a2); 718 SCARG(&shmget_args, size) = SCARG(uap, a3); 719 SCARG(&shmget_args, shmflg) = SCARG(uap, a4) 720 & (IPC_CREAT|IPC_EXCL|IPC_NOWAIT); 721 return sys_shmget(l, &shmget_args, retval); 722 723 default: 724 return EINVAL; 725 } 726 #else 727 return EOPNOTSUPP; 728 #endif /* SYSVSHM */ 729 } 730 731 static int 732 ultrix_to_bsd_flock(struct ultrix_flock *ufl, struct flock *fl) 733 { 734 735 fl->l_start = ufl->l_start; 736 fl->l_len = ufl->l_len; 737 fl->l_pid = ufl->l_pid; 738 fl->l_whence = ufl->l_whence; 739 740 switch (ufl->l_type) { 741 case ULTRIX_F_RDLCK: 742 fl->l_type = F_RDLCK; 743 break; 744 case ULTRIX_F_WRLCK: 745 fl->l_type = F_WRLCK; 746 break; 747 case ULTRIX_F_UNLCK: 748 fl->l_type = F_UNLCK; 749 break; 750 default: 751 return EINVAL; 752 } 753 754 return 0; 755 } 756 757 static void 758 bsd_to_ultrix_flock(struct flock *fl, struct ultrix_flock *ufl) 759 { 760 761 ufl->l_start = fl->l_start; 762 ufl->l_len = fl->l_len; 763 ufl->l_pid = fl->l_pid; 764 ufl->l_whence = fl->l_whence; 765 766 switch (fl->l_type) { 767 case F_RDLCK: 768 ufl->l_type = ULTRIX_F_RDLCK; 769 break; 770 case F_WRLCK: 771 ufl->l_type = ULTRIX_F_WRLCK; 772 break; 773 case F_UNLCK: 774 ufl->l_type = ULTRIX_F_UNLCK; 775 break; 776 } 777 } 778 779 int 780 ultrix_sys_fcntl(struct lwp *l, const struct ultrix_sys_fcntl_args *uap, register_t *retval) 781 { 782 int error; 783 struct ultrix_flock ufl; 784 struct flock fl; 785 786 switch (SCARG(uap, cmd)) { 787 case F_GETLK: 788 case F_SETLK: 789 case F_SETLKW: 790 error = copyin(SCARG(uap, arg), &ufl, sizeof(ufl)); 791 if (error) 792 return error; 793 error = ultrix_to_bsd_flock(&ufl, &fl); 794 if (error) 795 return error; 796 error = do_fcntl_lock(SCARG(uap, fd), SCARG(uap, cmd), &fl); 797 if (SCARG(uap, cmd) != F_GETLK || error != 0) 798 return error; 799 bsd_to_ultrix_flock(&fl, &ufl); 800 return copyout(&ufl, SCARG(uap, arg), sizeof(ufl)); 801 802 default: 803 break; 804 } 805 806 return sys_fcntl(l, (const void *)uap, retval); 807 } 808