1 /* $NetBSD: ultrix_misc.c,v 1.113 2008/06/24 11:18:15 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 1.113 2008/06/24 11:18:15 ad 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 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 socket *so; 350 struct mbuf *m = NULL; 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 m = m_get(M_WAIT, MT_SOOPTS); 366 mtod(m, struct linger *)->l_onoff = 0; 367 m->m_len = sizeof(struct linger); 368 error = sosetopt(so, SCARG(&ap, level), SO_LINGER, m); 369 } 370 if (SCARG(&ap, level) == IPPROTO_IP) { 371 #define EMUL_IP_MULTICAST_IF 2 372 #define EMUL_IP_MULTICAST_TTL 3 373 #define EMUL_IP_MULTICAST_LOOP 4 374 #define EMUL_IP_ADD_MEMBERSHIP 5 375 #define EMUL_IP_DROP_MEMBERSHIP 6 376 static const int ipoptxlat[] = { 377 IP_MULTICAST_IF, 378 IP_MULTICAST_TTL, 379 IP_MULTICAST_LOOP, 380 IP_ADD_MEMBERSHIP, 381 IP_DROP_MEMBERSHIP 382 }; 383 if (SCARG(&ap, name) >= EMUL_IP_MULTICAST_IF && 384 SCARG(&ap, name) <= EMUL_IP_DROP_MEMBERSHIP) { 385 SCARG(&ap, name) = 386 ipoptxlat[SCARG(&ap, name) - EMUL_IP_MULTICAST_IF]; 387 } 388 } 389 if (SCARG(&ap, valsize) > MLEN) { 390 error = EINVAL; 391 goto out; 392 } 393 if (SCARG(&ap, val)) { 394 m = m_get(M_WAIT, MT_SOOPTS); 395 error = copyin(SCARG(&ap, val), mtod(m, void *), 396 (u_int)SCARG(&ap, valsize)); 397 if (error) { 398 (void) m_free(m); 399 goto out; 400 } 401 m->m_len = SCARG(&ap, valsize); 402 } 403 error = sosetopt(so, SCARG(&ap, level), SCARG(&ap, name), m); 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 #if defined (NFSSERVER) 469 int 470 ultrix_sys_nfssvc(struct lwp *l, const struct ultrix_sys_nfssvc_args *uap, 471 register_t *retval) 472 { 473 474 #if 0 /* XXX */ 475 struct emul *e = p->p_emul; 476 struct sys_nfssvc_args outuap; 477 struct sockaddr sa; 478 int error; 479 void *sg = stackgap_init(p, 0); 480 481 memset(&outuap, 0, sizeof outuap); 482 SCARG(&outuap, fd) = SCARG(uap, fd); 483 SCARG(&outuap, mskval) = stackgap_alloc(p, &sg, sizeof sa); 484 SCARG(&outuap, msklen) = sizeof sa; 485 SCARG(&outuap, mtchval) = stackgap_alloc(p, &sg, sizeof sa); 486 SCARG(&outuap, mtchlen) = sizeof sa; 487 488 memset(&sa, 0, sizeof sa); 489 if (error = copyout(&sa, SCARG(&outuap, mskval), SCARG(&outuap, msklen))) 490 return error; 491 if (error = copyout(&sa, SCARG(&outuap, mtchval), SCARG(&outuap, mtchlen))) 492 return error; 493 494 return nfssvc(l, &outuap, retval); 495 #else 496 return ENOSYS; 497 #endif 498 } 499 #endif /* NFSSERVER */ 500 501 struct ultrix_ustat { 502 daddr_t f_tfree; /* total free */ 503 uint32_t f_tinode; /* total inodes free */ 504 char f_fname[6]; /* filsys name */ 505 char f_fpack[6]; /* filsys pack name */ 506 }; 507 508 int 509 ultrix_sys_ustat(struct lwp *l, const struct ultrix_sys_ustat_args *uap, register_t *retval) 510 { 511 struct ultrix_ustat us; 512 int error; 513 514 memset(&us, 0, sizeof us); 515 516 /* 517 * XXX: should set f_tfree and f_tinode at least 518 * How do we translate dev -> fstat? (and then to ultrix_ustat) 519 */ 520 521 if ((error = copyout(&us, SCARG(uap, buf), sizeof us)) != 0) 522 return error; 523 return 0; 524 } 525 526 int 527 ultrix_sys_quotactl(struct lwp *l, const struct ultrix_sys_quotactl_args *uap, register_t *retval) 528 { 529 530 return EINVAL; 531 } 532 533 int 534 ultrix_sys_vhangup(struct lwp *l, const void *uap, register_t *retval) 535 { 536 537 return 0; 538 } 539 540 541 /* 542 * RISC Ultrix cache control syscalls 543 */ 544 #ifdef __mips 545 int 546 ultrix_sys_cacheflush(struct lwp *l, const struct ultrix_sys_cacheflush_args *uap, register_t *retval) 547 { 548 /* { 549 syscallarg(void *) addr; 550 syscallarg(unsigned) nbytes; 551 syscallarg(int) flag; 552 } */ 553 struct proc *p = l->l_proc; 554 vaddr_t va = (vaddr_t)SCARG(uap, addr); 555 int nbytes = SCARG(uap, nbytes); 556 int whichcache = SCARG(uap, whichcache); 557 558 return mips_user_cacheflush(p, va, nbytes, whichcache); 559 } 560 561 562 int 563 ultrix_sys_cachectl(struct lwp *l, const struct ultrix_sys_cachectl_args *uap, register_t *retval) 564 { 565 /* { 566 syscallarg(void *) addr; 567 syscallarg(int) nbytes; 568 syscallarg(int) cacheop; 569 } */ 570 struct proc *p = l->l_proc; 571 vaddr_t va = (vaddr_t)SCARG(uap, addr); 572 int nbytes = SCARG(uap, nbytes); 573 int cacheop = SCARG(uap, cacheop); 574 575 return mips_user_cachectl(p, va, nbytes, cacheop); 576 } 577 578 #endif /* __mips */ 579 580 581 int 582 ultrix_sys_exportfs(struct lwp *l, const struct ultrix_sys_exportfs_args *uap, register_t *retval) 583 { 584 585 /* 586 * XXX: should perhaps translate into a mount(2) 587 * with MOUNT_EXPORT? 588 */ 589 return 0; 590 } 591 592 int 593 ultrix_sys_sigpending(struct lwp *l, const struct ultrix_sys_sigpending_args *uap, register_t *retval) 594 { 595 sigset_t ss; 596 int mask; 597 598 sigpending1(l, &ss); 599 mask = ss.__bits[0]; 600 601 return copyout(&mask, SCARG(uap, mask), sizeof(int)); 602 } 603 604 int 605 ultrix_sys_sigreturn(struct lwp *l, const struct ultrix_sys_sigreturn_args *uap, register_t *retval) 606 { 607 /* struct sigcontext13 is close enough to Ultrix */ 608 struct compat_13_sys_sigreturn_args ap; 609 610 SCARG(&ap, sigcntxp) = (void *)SCARG(uap, sigcntxp); 611 612 return compat_13_sys_sigreturn(l, &ap, retval); 613 } 614 615 int 616 ultrix_sys_sigcleanup(struct lwp *l, const struct ultrix_sys_sigcleanup_args *uap, register_t *retval) 617 { 618 619 /* struct sigcontext13 is close enough to Ultrix */ 620 struct compat_13_sys_sigreturn_args ap; 621 622 SCARG(&ap, sigcntxp) = (void *)SCARG(uap, sigcntxp); 623 624 return compat_13_sys_sigreturn(l, &ap, retval); 625 } 626 627 int 628 ultrix_sys_sigsuspend(struct lwp *l, const struct ultrix_sys_sigsuspend_args *uap, register_t *retval) 629 { 630 int mask = SCARG(uap, mask); 631 sigset_t ss; 632 633 ss.__bits[0] = mask; 634 ss.__bits[1] = 0; 635 ss.__bits[2] = 0; 636 ss.__bits[3] = 0; 637 638 return sigsuspend1(l, &ss); 639 } 640 641 #define ULTRIX_SV_ONSTACK 0x0001 /* take signal on signal stack */ 642 #define ULTRIX_SV_INTERRUPT 0x0002 /* do not restart system on signal return */ 643 #define ULTRIX_SV_OLDSIG 0x1000 /* Emulate old signal() for POSIX */ 644 645 int 646 ultrix_sys_sigvec(struct lwp *l, const struct ultrix_sys_sigvec_args *uap, register_t *retval) 647 { 648 struct sigvec nsv, osv; 649 struct sigaction nsa, osa; 650 int error; 651 652 if (SCARG(uap, nsv)) { 653 error = copyin(SCARG(uap, nsv), &nsv, sizeof(nsv)); 654 if (error) 655 return error; 656 nsa.sa_handler = nsv.sv_handler; 657 #if 0 /* documentation */ 658 /* ONSTACK is identical */ 659 nsa.sa_flags = nsv.sv_flags & ULTRIX_SV_ONSTACK; 660 if ((nsv.sv_flags & ULTRIX_SV_OLDSIG) 661 /* old signal() - always restart */ 662 || (!(nsv.sv_flags & ULTRIX_SV_INTERRUPT)) 663 /* inverted meaning (same bit) */ 664 ) 665 nsa.sa_flags |= SA_RESTART; 666 #else /* optimized - assuming ULTRIX_SV_OLDSIG=>!ULTRIX_SV_INTERRUPT */ 667 nsa.sa_flags = nsv.sv_flags & ~ULTRIX_SV_OLDSIG; 668 nsa.sa_flags ^= SA_RESTART; 669 #endif 670 native_sigset13_to_sigset(&nsv.sv_mask, &nsa.sa_mask); 671 } 672 error = sigaction1(l, SCARG(uap, signum), 673 SCARG(uap, nsv) ? &nsa : 0, SCARG(uap, osv) ? &osa : 0, 674 NULL, 0); 675 if (error) 676 return error; 677 if (SCARG(uap, osv)) { 678 osv.sv_handler = osa.sa_handler; 679 osv.sv_flags = osa.sa_flags ^ SA_RESTART; 680 osv.sv_flags &= (ULTRIX_SV_ONSTACK | ULTRIX_SV_INTERRUPT); 681 native_sigset_to_sigset13(&osa.sa_mask, &osv.sv_mask); 682 error = copyout(&osv, SCARG(uap, osv), sizeof(osv)); 683 if (error) 684 return error; 685 } 686 return 0; 687 } 688 689 int 690 ultrix_sys_shmsys(struct lwp *l, const struct ultrix_sys_shmsys_args *uap, register_t *retval) 691 { 692 693 #ifdef SYSVSHM 694 /* Ultrix SVSHM weirndess: */ 695 struct sys_shmat_args shmat_args; 696 struct compat_14_sys_shmctl_args shmctl_args; 697 struct sys_shmdt_args shmdt_args; 698 struct sys_shmget_args shmget_args; 699 700 701 switch (SCARG(uap, shmop)) { 702 case 0: /* Ultrix shmat() */ 703 SCARG(&shmat_args, shmid) = SCARG(uap, a2); 704 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a3); 705 SCARG(&shmat_args, shmflg) = SCARG(uap, a4); 706 return sys_shmat(l, &shmat_args, retval); 707 708 case 1: /* Ultrix shmctl() */ 709 SCARG(&shmctl_args, shmid) = SCARG(uap, a2); 710 SCARG(&shmctl_args, cmd) = SCARG(uap, a3); 711 SCARG(&shmctl_args, buf) = (struct shmid_ds14 *)SCARG(uap, a4); 712 return compat_14_sys_shmctl(l, &shmctl_args, retval); 713 714 case 2: /* Ultrix shmdt() */ 715 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a2); 716 return sys_shmdt(l, &shmdt_args, retval); 717 718 case 3: /* Ultrix shmget() */ 719 SCARG(&shmget_args, key) = SCARG(uap, a2); 720 SCARG(&shmget_args, size) = SCARG(uap, a3); 721 SCARG(&shmget_args, shmflg) = SCARG(uap, a4) 722 & (IPC_CREAT|IPC_EXCL|IPC_NOWAIT); 723 return sys_shmget(l, &shmget_args, retval); 724 725 default: 726 return EINVAL; 727 } 728 #else 729 return EOPNOTSUPP; 730 #endif /* SYSVSHM */ 731 } 732 733 static int 734 ultrix_to_bsd_flock(struct ultrix_flock *ufl, struct flock *fl) 735 { 736 737 fl->l_start = ufl->l_start; 738 fl->l_len = ufl->l_len; 739 fl->l_pid = ufl->l_pid; 740 fl->l_whence = ufl->l_whence; 741 742 switch (ufl->l_type) { 743 case ULTRIX_F_RDLCK: 744 fl->l_type = F_RDLCK; 745 break; 746 case ULTRIX_F_WRLCK: 747 fl->l_type = F_WRLCK; 748 break; 749 case ULTRIX_F_UNLCK: 750 fl->l_type = F_UNLCK; 751 break; 752 default: 753 return EINVAL; 754 } 755 756 return 0; 757 } 758 759 static void 760 bsd_to_ultrix_flock(struct flock *fl, struct ultrix_flock *ufl) 761 { 762 763 ufl->l_start = fl->l_start; 764 ufl->l_len = fl->l_len; 765 ufl->l_pid = fl->l_pid; 766 ufl->l_whence = fl->l_whence; 767 768 switch (fl->l_type) { 769 case F_RDLCK: 770 ufl->l_type = ULTRIX_F_RDLCK; 771 break; 772 case F_WRLCK: 773 ufl->l_type = ULTRIX_F_WRLCK; 774 break; 775 case F_UNLCK: 776 ufl->l_type = ULTRIX_F_UNLCK; 777 break; 778 } 779 } 780 781 int 782 ultrix_sys_fcntl(struct lwp *l, const struct ultrix_sys_fcntl_args *uap, register_t *retval) 783 { 784 int error; 785 struct ultrix_flock ufl; 786 struct flock fl; 787 788 switch (SCARG(uap, cmd)) { 789 case F_GETLK: 790 case F_SETLK: 791 case F_SETLKW: 792 error = copyin(SCARG(uap, arg), &ufl, sizeof(ufl)); 793 if (error) 794 return error; 795 error = ultrix_to_bsd_flock(&ufl, &fl); 796 if (error) 797 return error; 798 error = do_fcntl_lock(SCARG(uap, fd), SCARG(uap, cmd), &fl); 799 if (SCARG(uap, cmd) != F_GETLK || error != 0) 800 return error; 801 bsd_to_ultrix_flock(&fl, &ufl); 802 return copyout(&ufl, SCARG(uap, arg), sizeof(ufl)); 803 804 default: 805 break; 806 } 807 808 return sys_fcntl(l, (const void *)uap, retval); 809 } 810