ultrix_misc.c revision 1.108.20.1
1 /* $NetBSD: ultrix_misc.c,v 1.108.20.1 2008/01/02 21:53:39 bouyer 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 1.108.20.1 2008/01/02 21:53:39 bouyer 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 proc *p = l->l_proc; 350 struct file *fp; 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 = getsock(p->p_fd, SCARG(&ap, s), &fp)) != 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((struct socket *)fp->f_data, SCARG(&ap, level), 370 SO_LINGER, m); 371 } 372 if (SCARG(&ap, level) == IPPROTO_IP) { 373 #define EMUL_IP_MULTICAST_IF 2 374 #define EMUL_IP_MULTICAST_TTL 3 375 #define EMUL_IP_MULTICAST_LOOP 4 376 #define EMUL_IP_ADD_MEMBERSHIP 5 377 #define EMUL_IP_DROP_MEMBERSHIP 6 378 static const int ipoptxlat[] = { 379 IP_MULTICAST_IF, 380 IP_MULTICAST_TTL, 381 IP_MULTICAST_LOOP, 382 IP_ADD_MEMBERSHIP, 383 IP_DROP_MEMBERSHIP 384 }; 385 if (SCARG(&ap, name) >= EMUL_IP_MULTICAST_IF && 386 SCARG(&ap, name) <= EMUL_IP_DROP_MEMBERSHIP) { 387 SCARG(&ap, name) = 388 ipoptxlat[SCARG(&ap, name) - EMUL_IP_MULTICAST_IF]; 389 } 390 } 391 if (SCARG(&ap, valsize) > MLEN) { 392 error = EINVAL; 393 goto out; 394 } 395 if (SCARG(&ap, val)) { 396 m = m_get(M_WAIT, MT_SOOPTS); 397 error = copyin(SCARG(&ap, val), mtod(m, void *), 398 (u_int)SCARG(&ap, valsize)); 399 if (error) { 400 (void) m_free(m); 401 goto out; 402 } 403 m->m_len = SCARG(&ap, valsize); 404 } 405 error = sosetopt((struct socket *)fp->f_data, SCARG(&ap, level), 406 SCARG(&ap, name), m); 407 out: 408 FILE_UNUSE(fp, l); 409 return error; 410 } 411 412 #define ULTRIX__SYS_NMLN 32 413 414 struct ultrix_utsname { 415 char sysname[ULTRIX__SYS_NMLN]; 416 char nodename[ULTRIX__SYS_NMLN]; 417 char release[ULTRIX__SYS_NMLN]; 418 char version[ULTRIX__SYS_NMLN]; 419 char machine[ULTRIX__SYS_NMLN]; 420 }; 421 422 int 423 ultrix_sys_uname(struct lwp *l, const struct ultrix_sys_uname_args *uap, register_t *retval) 424 { 425 struct ultrix_utsname sut; 426 const char *cp; 427 char *dp, *ep; 428 429 memset(&sut, 0, sizeof(sut)); 430 431 strncpy(sut.sysname, ostype, sizeof(sut.sysname) - 1); 432 strncpy(sut.nodename, hostname, sizeof(sut.nodename) - 1); 433 strncpy(sut.release, osrelease, sizeof(sut.release) - 1); 434 dp = sut.version; 435 ep = &sut.version[sizeof(sut.version) - 1]; 436 for (cp = version; *cp && *cp != '('; cp++) 437 ; 438 for (cp++; *cp && *cp != ')' && dp < ep; cp++) 439 *dp++ = *cp; 440 for (; *cp && *cp != '#'; cp++) 441 ; 442 for (; *cp && *cp != ':' && dp < ep; cp++) 443 *dp++ = *cp; 444 *dp = '\0'; 445 strncpy(sut.machine, machine, sizeof(sut.machine) - 1); 446 447 return copyout(&sut, SCARG(uap, name), sizeof(sut)); 448 } 449 450 int 451 ultrix_sys_setpgrp(struct lwp *l, const struct ultrix_sys_setpgrp_args *uap, register_t *retval) 452 { 453 struct proc *p = l->l_proc; 454 struct sys_setpgid_args ap; 455 456 SCARG(&ap, pid) = SCARG(uap, pid); 457 SCARG(&ap, pgid) = SCARG(uap, pgid); 458 /* 459 * difference to our setpgid call is to include backwards 460 * compatibility to pre-setsid() binaries. Do setsid() 461 * instead of setpgid() in those cases where the process 462 * tries to create a new session the old way. 463 */ 464 if (!SCARG(&ap, pgid) && 465 (!SCARG(&ap, pid) || SCARG(&ap, pid) == p->p_pid)) 466 return sys_setsid(l, &ap, retval); 467 else 468 return sys_setpgid(l, &ap, retval); 469 } 470 471 #if defined (NFSSERVER) 472 int 473 ultrix_sys_nfssvc(struct lwp *l, const void *v, register_t *retval) 474 { 475 476 #if 0 /* XXX */ 477 struct ultrix_sys_nfssvc_args *uap = v; 478 struct emul *e = p->p_emul; 479 struct sys_nfssvc_args outuap; 480 struct sockaddr sa; 481 int error; 482 void *sg = stackgap_init(p, 0); 483 484 memset(&outuap, 0, sizeof outuap); 485 SCARG(&outuap, fd) = SCARG(uap, fd); 486 SCARG(&outuap, mskval) = stackgap_alloc(p, &sg, sizeof sa); 487 SCARG(&outuap, msklen) = sizeof sa; 488 SCARG(&outuap, mtchval) = stackgap_alloc(p, &sg, sizeof sa); 489 SCARG(&outuap, mtchlen) = sizeof sa; 490 491 memset(&sa, 0, sizeof sa); 492 if (error = copyout(&sa, SCARG(&outuap, mskval), SCARG(&outuap, msklen))) 493 return error; 494 if (error = copyout(&sa, SCARG(&outuap, mtchval), SCARG(&outuap, mtchlen))) 495 return error; 496 497 return nfssvc(l, &outuap, retval); 498 #else 499 return ENOSYS; 500 #endif 501 } 502 #endif /* NFSSERVER */ 503 504 struct ultrix_ustat { 505 daddr_t f_tfree; /* total free */ 506 uint32_t f_tinode; /* total inodes free */ 507 char f_fname[6]; /* filsys name */ 508 char f_fpack[6]; /* filsys pack name */ 509 }; 510 511 int 512 ultrix_sys_ustat(struct lwp *l, const struct ultrix_sys_ustat_args *uap, register_t *retval) 513 { 514 struct ultrix_ustat us; 515 int error; 516 517 memset(&us, 0, sizeof us); 518 519 /* 520 * XXX: should set f_tfree and f_tinode at least 521 * How do we translate dev -> fstat? (and then to ultrix_ustat) 522 */ 523 524 if ((error = copyout(&us, SCARG(uap, buf), sizeof us)) != 0) 525 return error; 526 return 0; 527 } 528 529 int 530 ultrix_sys_quotactl(struct lwp *l, const struct ultrix_sys_quotactl_args *uap, register_t *retval) 531 { 532 533 return EINVAL; 534 } 535 536 int 537 ultrix_sys_vhangup(struct lwp *l, const void *uap, register_t *retval) 538 { 539 540 return 0; 541 } 542 543 544 /* 545 * RISC Ultrix cache control syscalls 546 */ 547 #ifdef __mips 548 int 549 ultrix_sys_cacheflush(struct lwp *l, const struct ultrix_sys_cacheflush_args *uap, register_t *retval) 550 { 551 /* { 552 syscallarg(void *) addr; 553 syscallarg(unsigned) nbytes; 554 syscallarg(int) flag; 555 } */ 556 struct proc *p = l->l_proc; 557 vaddr_t va = (vaddr_t)SCARG(uap, addr); 558 int nbytes = SCARG(uap, nbytes); 559 int whichcache = SCARG(uap, whichcache); 560 561 return mips_user_cacheflush(p, va, nbytes, whichcache); 562 } 563 564 565 int 566 ultrix_sys_cachectl(struct lwp *l, const struct ultrix_sys_cachectl_args *uap, register_t *retval) 567 { 568 /* { 569 syscallarg(void *) addr; 570 syscallarg(int) nbytes; 571 syscallarg(int) cacheop; 572 } */ 573 struct proc *p = l->l_proc; 574 vaddr_t va = (vaddr_t)SCARG(uap, addr); 575 int nbytes = SCARG(uap, nbytes); 576 int cacheop = SCARG(uap, cacheop); 577 578 return mips_user_cachectl(p, va, nbytes, cacheop); 579 } 580 581 #endif /* __mips */ 582 583 584 int 585 ultrix_sys_exportfs(struct lwp *l, const struct ultrix_sys_exportfs_args *uap, register_t *retval) 586 { 587 588 /* 589 * XXX: should perhaps translate into a mount(2) 590 * with MOUNT_EXPORT? 591 */ 592 return 0; 593 } 594 595 int 596 ultrix_sys_sigpending(struct lwp *l, const struct ultrix_sys_sigpending_args *uap, register_t *retval) 597 { 598 sigset_t ss; 599 int mask; 600 601 sigpending1(l, &ss); 602 mask = ss.__bits[0]; 603 604 return copyout(&mask, SCARG(uap, mask), sizeof(int)); 605 } 606 607 int 608 ultrix_sys_sigreturn(struct lwp *l, const struct ultrix_sys_sigreturn_args *uap, register_t *retval) 609 { 610 /* struct sigcontext13 is close enough to Ultrix */ 611 struct compat_13_sys_sigreturn_args ap; 612 613 SCARG(&ap, sigcntxp) = (void *)SCARG(uap, sigcntxp); 614 615 return compat_13_sys_sigreturn(l, &ap, retval); 616 } 617 618 int 619 ultrix_sys_sigcleanup(struct lwp *l, const struct ultrix_sys_sigcleanup_args *uap, register_t *retval) 620 { 621 622 /* struct sigcontext13 is close enough to Ultrix */ 623 struct compat_13_sys_sigreturn_args ap; 624 625 SCARG(&ap, sigcntxp) = (void *)SCARG(uap, sigcntxp); 626 627 return compat_13_sys_sigreturn(l, &ap, retval); 628 } 629 630 int 631 ultrix_sys_sigsuspend(struct lwp *l, const struct ultrix_sys_sigsuspend_args *uap, register_t *retval) 632 { 633 int mask = SCARG(uap, mask); 634 sigset_t ss; 635 636 ss.__bits[0] = mask; 637 ss.__bits[1] = 0; 638 ss.__bits[2] = 0; 639 ss.__bits[3] = 0; 640 641 return sigsuspend1(l, &ss); 642 } 643 644 #define ULTRIX_SV_ONSTACK 0x0001 /* take signal on signal stack */ 645 #define ULTRIX_SV_INTERRUPT 0x0002 /* do not restart system on signal return */ 646 #define ULTRIX_SV_OLDSIG 0x1000 /* Emulate old signal() for POSIX */ 647 648 int 649 ultrix_sys_sigvec(struct lwp *l, const struct ultrix_sys_sigvec_args *uap, register_t *retval) 650 { 651 struct sigvec nsv, osv; 652 struct sigaction nsa, osa; 653 int error; 654 655 if (SCARG(uap, nsv)) { 656 error = copyin(SCARG(uap, nsv), &nsv, sizeof(nsv)); 657 if (error) 658 return error; 659 nsa.sa_handler = nsv.sv_handler; 660 #if 0 /* documentation */ 661 /* ONSTACK is identical */ 662 nsa.sa_flags = nsv.sv_flags & ULTRIX_SV_ONSTACK; 663 if ((nsv.sv_flags & ULTRIX_SV_OLDSIG) 664 /* old signal() - always restart */ 665 || (!(nsv.sv_flags & ULTRIX_SV_INTERRUPT)) 666 /* inverted meaning (same bit) */ 667 ) 668 nsa.sa_flags |= SA_RESTART; 669 #else /* optimized - assuming ULTRIX_SV_OLDSIG=>!ULTRIX_SV_INTERRUPT */ 670 nsa.sa_flags = nsv.sv_flags & ~ULTRIX_SV_OLDSIG; 671 nsa.sa_flags ^= SA_RESTART; 672 #endif 673 native_sigset13_to_sigset(&nsv.sv_mask, &nsa.sa_mask); 674 } 675 error = sigaction1(l, SCARG(uap, signum), 676 SCARG(uap, nsv) ? &nsa : 0, SCARG(uap, osv) ? &osa : 0, 677 NULL, 0); 678 if (error) 679 return error; 680 if (SCARG(uap, osv)) { 681 osv.sv_handler = osa.sa_handler; 682 osv.sv_flags = osa.sa_flags ^ SA_RESTART; 683 osv.sv_flags &= (ULTRIX_SV_ONSTACK | ULTRIX_SV_INTERRUPT); 684 native_sigset_to_sigset13(&osa.sa_mask, &osv.sv_mask); 685 error = copyout(&osv, SCARG(uap, osv), sizeof(osv)); 686 if (error) 687 return error; 688 } 689 return 0; 690 } 691 692 int 693 ultrix_sys_shmsys(struct lwp *l, const struct ultrix_sys_shmsys_args *uap, register_t *retval) 694 { 695 696 #ifdef SYSVSHM 697 /* Ultrix SVSHM weirndess: */ 698 struct sys_shmat_args shmat_args; 699 struct compat_14_sys_shmctl_args shmctl_args; 700 struct sys_shmdt_args shmdt_args; 701 struct sys_shmget_args shmget_args; 702 703 704 switch (SCARG(uap, shmop)) { 705 case 0: /* Ultrix shmat() */ 706 SCARG(&shmat_args, shmid) = SCARG(uap, a2); 707 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a3); 708 SCARG(&shmat_args, shmflg) = SCARG(uap, a4); 709 return sys_shmat(l, &shmat_args, retval); 710 711 case 1: /* Ultrix shmctl() */ 712 SCARG(&shmctl_args, shmid) = SCARG(uap, a2); 713 SCARG(&shmctl_args, cmd) = SCARG(uap, a3); 714 SCARG(&shmctl_args, buf) = (struct shmid_ds14 *)SCARG(uap, a4); 715 return compat_14_sys_shmctl(l, &shmctl_args, retval); 716 717 case 2: /* Ultrix shmdt() */ 718 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a2); 719 return sys_shmdt(l, &shmdt_args, retval); 720 721 case 3: /* Ultrix shmget() */ 722 SCARG(&shmget_args, key) = SCARG(uap, a2); 723 SCARG(&shmget_args, size) = SCARG(uap, a3); 724 SCARG(&shmget_args, shmflg) = SCARG(uap, a4) 725 & (IPC_CREAT|IPC_EXCL|IPC_NOWAIT); 726 return sys_shmget(l, &shmget_args, retval); 727 728 default: 729 return EINVAL; 730 } 731 #else 732 return EOPNOTSUPP; 733 #endif /* SYSVSHM */ 734 } 735 736 static int 737 ultrix_to_bsd_flock(struct ultrix_flock *ufl, struct flock *fl) 738 { 739 740 fl->l_start = ufl->l_start; 741 fl->l_len = ufl->l_len; 742 fl->l_pid = ufl->l_pid; 743 fl->l_whence = ufl->l_whence; 744 745 switch (ufl->l_type) { 746 case ULTRIX_F_RDLCK: 747 fl->l_type = F_RDLCK; 748 break; 749 case ULTRIX_F_WRLCK: 750 fl->l_type = F_WRLCK; 751 break; 752 case ULTRIX_F_UNLCK: 753 fl->l_type = F_UNLCK; 754 break; 755 default: 756 return EINVAL; 757 } 758 759 return 0; 760 } 761 762 static void 763 bsd_to_ultrix_flock(struct flock *fl, struct ultrix_flock *ufl) 764 { 765 766 ufl->l_start = fl->l_start; 767 ufl->l_len = fl->l_len; 768 ufl->l_pid = fl->l_pid; 769 ufl->l_whence = fl->l_whence; 770 771 switch (fl->l_type) { 772 case F_RDLCK: 773 ufl->l_type = ULTRIX_F_RDLCK; 774 break; 775 case F_WRLCK: 776 ufl->l_type = ULTRIX_F_WRLCK; 777 break; 778 case F_UNLCK: 779 ufl->l_type = ULTRIX_F_UNLCK; 780 break; 781 } 782 } 783 784 int 785 ultrix_sys_fcntl(struct lwp *l, const struct ultrix_sys_fcntl_args *uap, register_t *retval) 786 { 787 int error; 788 struct ultrix_flock ufl; 789 struct flock fl; 790 791 switch (SCARG(uap, cmd)) { 792 case F_GETLK: 793 case F_SETLK: 794 case F_SETLKW: 795 error = copyin(SCARG(uap, arg), &ufl, sizeof(ufl)); 796 if (error) 797 return error; 798 error = ultrix_to_bsd_flock(&ufl, &fl); 799 if (error) 800 return error; 801 error = do_fcntl_lock(l, SCARG(uap, fd), SCARG(uap, cmd), &fl); 802 if (SCARG(uap, cmd) != F_GETLK || error != 0) 803 return error; 804 bsd_to_ultrix_flock(&fl, &ufl); 805 return copyout(&ufl, SCARG(uap, arg), sizeof(ufl)); 806 807 default: 808 break; 809 } 810 811 return sys_fcntl(l, (const void *)uap, retval); 812 } 813
Indexes created Fri Oct 03 17:10:05 GMT 2025