ultrix_misc.c revision 1.118
1 /* $NetBSD: ultrix_misc.c,v 1.118 2009/01/17 15:48:06 he 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 1.118 2009/01/17 15:48:06 he 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 #include <compat/sys/time.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 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 compat_50_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 compat_50_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 compat_50_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 compat_50_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 timeval50 atv; 272 int error; 273 struct compat_50_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 = compat_50_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 sockopt sopt; 351 struct socket *so; 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 /* fd_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 struct linger lg; 367 368 lg.l_onoff = 0; 369 error = so_setsockopt(l, so, SCARG(&ap, level), SO_LINGER, 370 &lg, sizeof(lg)); 371 goto out; 372 } 373 if (SCARG(&ap, level) == IPPROTO_IP) { 374 #define EMUL_IP_MULTICAST_IF 2 375 #define EMUL_IP_MULTICAST_TTL 3 376 #define EMUL_IP_MULTICAST_LOOP 4 377 #define EMUL_IP_ADD_MEMBERSHIP 5 378 #define EMUL_IP_DROP_MEMBERSHIP 6 379 static const int ipoptxlat[] = { 380 IP_MULTICAST_IF, 381 IP_MULTICAST_TTL, 382 IP_MULTICAST_LOOP, 383 IP_ADD_MEMBERSHIP, 384 IP_DROP_MEMBERSHIP 385 }; 386 if (SCARG(&ap, name) >= EMUL_IP_MULTICAST_IF && 387 SCARG(&ap, name) <= EMUL_IP_DROP_MEMBERSHIP) { 388 SCARG(&ap, name) = 389 ipoptxlat[SCARG(&ap, name) - EMUL_IP_MULTICAST_IF]; 390 } 391 } 392 if (SCARG(&ap, valsize) > MLEN) { 393 error = EINVAL; 394 goto out; 395 } 396 sockopt_init(&sopt, SCARG(&ap, level), SCARG(&ap, name), 397 SCARG(&ap, valsize)); 398 if (SCARG(&ap, val)) { 399 error = copyin(SCARG(&ap, val), sopt.sopt_data, 400 (u_int)SCARG(&ap, valsize)); 401 } 402 if (error == 0) 403 error = sosetopt(so, &sopt); 404 sockopt_destroy(&sopt); 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 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 } 499 500 struct ultrix_ustat { 501 daddr_t f_tfree; /* total free */ 502 uint32_t f_tinode; /* total inodes free */ 503 char f_fname[6]; /* filsys name */ 504 char f_fpack[6]; /* filsys pack name */ 505 }; 506 507 int 508 ultrix_sys_ustat(struct lwp *l, const struct ultrix_sys_ustat_args *uap, register_t *retval) 509 { 510 struct ultrix_ustat us; 511 int error; 512 513 memset(&us, 0, sizeof us); 514 515 /* 516 * XXX: should set f_tfree and f_tinode at least 517 * How do we translate dev -> fstat? (and then to ultrix_ustat) 518 */ 519 520 if ((error = copyout(&us, SCARG(uap, buf), sizeof us)) != 0) 521 return error; 522 return 0; 523 } 524 525 int 526 ultrix_sys_quotactl(struct lwp *l, const struct ultrix_sys_quotactl_args *uap, register_t *retval) 527 { 528 529 return EINVAL; 530 } 531 532 int 533 ultrix_sys_vhangup(struct lwp *l, const void *uap, register_t *retval) 534 { 535 536 return 0; 537 } 538 539 540 /* 541 * RISC Ultrix cache control syscalls 542 */ 543 #ifdef __mips 544 int 545 ultrix_sys_cacheflush(struct lwp *l, const struct ultrix_sys_cacheflush_args *uap, register_t *retval) 546 { 547 /* { 548 syscallarg(void *) addr; 549 syscallarg(unsigned) nbytes; 550 syscallarg(int) flag; 551 } */ 552 struct proc *p = l->l_proc; 553 vaddr_t va = (vaddr_t)SCARG(uap, addr); 554 int nbytes = SCARG(uap, nbytes); 555 int whichcache = SCARG(uap, whichcache); 556 557 return mips_user_cacheflush(p, va, nbytes, whichcache); 558 } 559 560 561 int 562 ultrix_sys_cachectl(struct lwp *l, const struct ultrix_sys_cachectl_args *uap, register_t *retval) 563 { 564 /* { 565 syscallarg(void *) addr; 566 syscallarg(int) nbytes; 567 syscallarg(int) cacheop; 568 } */ 569 struct proc *p = l->l_proc; 570 vaddr_t va = (vaddr_t)SCARG(uap, addr); 571 int nbytes = SCARG(uap, nbytes); 572 int cacheop = SCARG(uap, cacheop); 573 574 return mips_user_cachectl(p, va, nbytes, cacheop); 575 } 576 577 #endif /* __mips */ 578 579 580 int 581 ultrix_sys_exportfs(struct lwp *l, const struct ultrix_sys_exportfs_args *uap, register_t *retval) 582 { 583 584 /* 585 * XXX: should perhaps translate into a mount(2) 586 * with MOUNT_EXPORT? 587 */ 588 return 0; 589 } 590 591 int 592 ultrix_sys_sigpending(struct lwp *l, const struct ultrix_sys_sigpending_args *uap, register_t *retval) 593 { 594 sigset_t ss; 595 int mask; 596 597 sigpending1(l, &ss); 598 mask = ss.__bits[0]; 599 600 return copyout(&mask, SCARG(uap, mask), sizeof(int)); 601 } 602 603 int 604 ultrix_sys_sigreturn(struct lwp *l, const struct ultrix_sys_sigreturn_args *uap, register_t *retval) 605 { 606 /* struct sigcontext13 is close enough to Ultrix */ 607 struct compat_13_sys_sigreturn_args ap; 608 609 SCARG(&ap, sigcntxp) = (void *)SCARG(uap, sigcntxp); 610 611 return compat_13_sys_sigreturn(l, &ap, retval); 612 } 613 614 int 615 ultrix_sys_sigcleanup(struct lwp *l, const struct ultrix_sys_sigcleanup_args *uap, register_t *retval) 616 { 617 618 /* struct sigcontext13 is close enough to Ultrix */ 619 struct compat_13_sys_sigreturn_args ap; 620 621 SCARG(&ap, sigcntxp) = (void *)SCARG(uap, sigcntxp); 622 623 return compat_13_sys_sigreturn(l, &ap, retval); 624 } 625 626 int 627 ultrix_sys_sigsuspend(struct lwp *l, const struct ultrix_sys_sigsuspend_args *uap, register_t *retval) 628 { 629 int mask = SCARG(uap, mask); 630 sigset_t ss; 631 632 ss.__bits[0] = mask; 633 ss.__bits[1] = 0; 634 ss.__bits[2] = 0; 635 ss.__bits[3] = 0; 636 637 return sigsuspend1(l, &ss); 638 } 639 640 #define ULTRIX_SV_ONSTACK 0x0001 /* take signal on signal stack */ 641 #define ULTRIX_SV_INTERRUPT 0x0002 /* do not restart system on signal return */ 642 #define ULTRIX_SV_OLDSIG 0x1000 /* Emulate old signal() for POSIX */ 643 644 int 645 ultrix_sys_sigvec(struct lwp *l, const struct ultrix_sys_sigvec_args *uap, register_t *retval) 646 { 647 struct sigvec nsv, osv; 648 struct sigaction nsa, osa; 649 int error; 650 651 if (SCARG(uap, nsv)) { 652 error = copyin(SCARG(uap, nsv), &nsv, sizeof(nsv)); 653 if (error) 654 return error; 655 nsa.sa_handler = nsv.sv_handler; 656 #if 0 /* documentation */ 657 /* ONSTACK is identical */ 658 nsa.sa_flags = nsv.sv_flags & ULTRIX_SV_ONSTACK; 659 if ((nsv.sv_flags & ULTRIX_SV_OLDSIG) 660 /* old signal() - always restart */ 661 || (!(nsv.sv_flags & ULTRIX_SV_INTERRUPT)) 662 /* inverted meaning (same bit) */ 663 ) 664 nsa.sa_flags |= SA_RESTART; 665 #else /* optimized - assuming ULTRIX_SV_OLDSIG=>!ULTRIX_SV_INTERRUPT */ 666 nsa.sa_flags = nsv.sv_flags & ~ULTRIX_SV_OLDSIG; 667 nsa.sa_flags ^= SA_RESTART; 668 #endif 669 native_sigset13_to_sigset(&nsv.sv_mask, &nsa.sa_mask); 670 } 671 error = sigaction1(l, SCARG(uap, signum), 672 SCARG(uap, nsv) ? &nsa : 0, SCARG(uap, osv) ? &osa : 0, 673 NULL, 0); 674 if (error) 675 return error; 676 if (SCARG(uap, osv)) { 677 osv.sv_handler = osa.sa_handler; 678 osv.sv_flags = osa.sa_flags ^ SA_RESTART; 679 osv.sv_flags &= (ULTRIX_SV_ONSTACK | ULTRIX_SV_INTERRUPT); 680 native_sigset_to_sigset13(&osa.sa_mask, &osv.sv_mask); 681 error = copyout(&osv, SCARG(uap, osv), sizeof(osv)); 682 if (error) 683 return error; 684 } 685 return 0; 686 } 687 688 int 689 ultrix_sys_shmsys(struct lwp *l, const struct ultrix_sys_shmsys_args *uap, register_t *retval) 690 { 691 692 #ifdef SYSVSHM 693 /* Ultrix SVSHM weirndess: */ 694 struct sys_shmat_args shmat_args; 695 struct compat_14_sys_shmctl_args shmctl_args; 696 struct sys_shmdt_args shmdt_args; 697 struct sys_shmget_args shmget_args; 698 699 700 switch (SCARG(uap, shmop)) { 701 case 0: /* Ultrix shmat() */ 702 SCARG(&shmat_args, shmid) = SCARG(uap, a2); 703 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a3); 704 SCARG(&shmat_args, shmflg) = SCARG(uap, a4); 705 return sys_shmat(l, &shmat_args, retval); 706 707 case 1: /* Ultrix shmctl() */ 708 SCARG(&shmctl_args, shmid) = SCARG(uap, a2); 709 SCARG(&shmctl_args, cmd) = SCARG(uap, a3); 710 SCARG(&shmctl_args, buf) = (struct shmid_ds14 *)SCARG(uap, a4); 711 return compat_14_sys_shmctl(l, &shmctl_args, retval); 712 713 case 2: /* Ultrix shmdt() */ 714 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a2); 715 return sys_shmdt(l, &shmdt_args, retval); 716 717 case 3: /* Ultrix shmget() */ 718 SCARG(&shmget_args, key) = SCARG(uap, a2); 719 SCARG(&shmget_args, size) = SCARG(uap, a3); 720 SCARG(&shmget_args, shmflg) = SCARG(uap, a4) 721 & (IPC_CREAT|IPC_EXCL|IPC_NOWAIT); 722 return sys_shmget(l, &shmget_args, retval); 723 724 default: 725 return EINVAL; 726 } 727 #else 728 return EOPNOTSUPP; 729 #endif /* SYSVSHM */ 730 } 731 732 static int 733 ultrix_to_bsd_flock(struct ultrix_flock *ufl, struct flock *fl) 734 { 735 736 fl->l_start = ufl->l_start; 737 fl->l_len = ufl->l_len; 738 fl->l_pid = ufl->l_pid; 739 fl->l_whence = ufl->l_whence; 740 741 switch (ufl->l_type) { 742 case ULTRIX_F_RDLCK: 743 fl->l_type = F_RDLCK; 744 break; 745 case ULTRIX_F_WRLCK: 746 fl->l_type = F_WRLCK; 747 break; 748 case ULTRIX_F_UNLCK: 749 fl->l_type = F_UNLCK; 750 break; 751 default: 752 return EINVAL; 753 } 754 755 return 0; 756 } 757 758 static void 759 bsd_to_ultrix_flock(struct flock *fl, struct ultrix_flock *ufl) 760 { 761 762 ufl->l_start = fl->l_start; 763 ufl->l_len = fl->l_len; 764 ufl->l_pid = fl->l_pid; 765 ufl->l_whence = fl->l_whence; 766 767 switch (fl->l_type) { 768 case F_RDLCK: 769 ufl->l_type = ULTRIX_F_RDLCK; 770 break; 771 case F_WRLCK: 772 ufl->l_type = ULTRIX_F_WRLCK; 773 break; 774 case F_UNLCK: 775 ufl->l_type = ULTRIX_F_UNLCK; 776 break; 777 } 778 } 779 780 int 781 ultrix_sys_fcntl(struct lwp *l, const struct ultrix_sys_fcntl_args *uap, register_t *retval) 782 { 783 int error; 784 struct ultrix_flock ufl; 785 struct flock fl; 786 787 switch (SCARG(uap, cmd)) { 788 case F_GETLK: 789 case F_SETLK: 790 case F_SETLKW: 791 error = copyin(SCARG(uap, arg), &ufl, sizeof(ufl)); 792 if (error) 793 return error; 794 error = ultrix_to_bsd_flock(&ufl, &fl); 795 if (error) 796 return error; 797 error = do_fcntl_lock(SCARG(uap, fd), SCARG(uap, cmd), &fl); 798 if (SCARG(uap, cmd) != F_GETLK || error != 0) 799 return error; 800 bsd_to_ultrix_flock(&fl, &ufl); 801 return copyout(&ufl, SCARG(uap, arg), sizeof(ufl)); 802 803 default: 804 break; 805 } 806 807 return sys_fcntl(l, (const void *)uap, retval); 808 } 809
Indexes created Fri Sep 26 08:10:20 GMT 2025