ultrix_misc.c revision 1.108.14.1
1 /* $NetBSD: ultrix_misc.c,v 1.108.14.1 2008/02/18 21:05:31 mjf 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 1.108.14.1 2008/02/18 21:05:31 mjf 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, void *v, register_t *retval) 210 { 211 struct ultrix_sys_getsysinfo_args *uap = v; 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, void *v, register_t *retval) 229 { 230 231 #ifdef notyet 232 struct ultrix_sys_setsysinfo_args *uap = v; 233 #endif 234 235 *retval = 0; 236 return 0; 237 } 238 239 int 240 ultrix_sys_waitpid(struct lwp *l, void *v, register_t *retval) 241 { 242 struct sys_wait4_args ap; 243 244 SCARG(&ap, pid) = SCARG(uap, pid); 245 SCARG(&ap, status) = SCARG(uap, status); 246 SCARG(&ap, options) = SCARG(uap, options); 247 SCARG(&ap, rusage) = 0; 248 249 return sys_wait4(l, &ap, retval); 250 } 251 252 int 253 ultrix_sys_wait3(struct lwp *l, void *v, register_t *retval) 254 { 255 struct sys_wait4_args ap; 256 257 SCARG(&ap, pid) = -1; 258 SCARG(&ap, status) = SCARG(uap, status); 259 SCARG(&ap, options) = SCARG(uap, options); 260 SCARG(&ap, rusage) = SCARG(uap, rusage); 261 262 return sys_wait4(l, &ap, retval); 263 } 264 265 /* 266 * Ultrix binaries pass in FD_MAX as the first arg to select(). 267 * On Ultrix, FD_MAX is 4096, which is more than the NetBSD sys_select() 268 * can handle. 269 * Since we can't have more than the (native) FD_MAX descriptors open, 270 * limit nfds to at most FD_MAX. 271 */ 272 int 273 ultrix_sys_select(struct lwp *l, const struct ultrix_sys_select_args *uap, register_t *retval) 274 { 275 struct sys_select_args *uap = v; 276 struct timeval atv; 277 int error; 278 struct sys_select_args ap; 279 280 /* Limit number of FDs selected on to the native maximum */ 281 282 if (SCARG(uap, nd) > FD_SETSIZE) 283 SCARG(&ap, nd) = FD_SETSIZE; 284 else 285 SCARG(&ap, nd) = SCARG(uap, nd); 286 287 SCARG(&ap, in) = SCARG(uap, in); 288 SCARG(&ap, ou) = SCARG(uap, ou); 289 SCARG(&ap, ex) = SCARG(uap, ex); 290 SCARG(&ap, tv) = SCARG(uap, tv); 291 /* Check for negative timeval */ 292 if (SCARG(&ap, tv)) { 293 error = copyin(SCARG(uap, tv), &atv, sizeof(atv)); 294 if (error) 295 goto done; 296 #ifdef DEBUG 297 /* Ultrix clients sometimes give negative timeouts? */ 298 if (atv.tv_sec < 0 || atv.tv_usec < 0) 299 printf("ultrix select( %ld, %ld): negative timeout\n", 300 atv.tv_sec, atv.tv_usec); 301 #endif 302 303 } 304 error = sys_select(l, &ap, retval); 305 if (error == EINVAL) 306 printf("ultrix select: bad args?\n"); 307 308 done: 309 return error; 310 } 311 312 #if defined(NFS) 313 int 314 async_daemon(struct lwp *l, void *v, register_t *retval) 315 { 316 struct sys_nfssvc_args ouap; 317 318 SCARG(&ouap, flag) = NFSSVC_BIOD; 319 SCARG(&ouap, argp) = NULL; 320 321 return sys_nfssvc(l, &ouap, retval); 322 } 323 #endif /* NFS */ 324 325 326 #define SUN__MAP_NEW 0x80000000 /* if not, old mmap & cannot handle */ 327 328 int 329 ultrix_sys_mmap(struct lwp *l, void *v, register_t *retval) 330 { 331 struct ultrix_sys_mmap_args *uap = v; 332 struct sys_mmap_args ouap; 333 334 /* 335 * Verify the arguments. 336 */ 337 if (SCARG(uap, prot) & ~(PROT_READ|PROT_WRITE|PROT_EXEC)) 338 return EINVAL; /* XXX still needed? */ 339 340 if ((SCARG(uap, flags) & SUN__MAP_NEW) == 0) 341 return EINVAL; 342 343 SCARG(&ouap, flags) = SCARG(uap, flags) & ~SUN__MAP_NEW; 344 SCARG(&ouap, addr) = SCARG(uap, addr); 345 SCARG(&ouap, len) = SCARG(uap, len); 346 SCARG(&ouap, prot) = SCARG(uap, prot); 347 SCARG(&ouap, fd) = SCARG(uap, fd); 348 SCARG(&ouap, pos) = SCARG(uap, pos); 349 350 return sys_mmap(l, &ouap, retval); 351 } 352 353 int 354 ultrix_sys_setsockopt(struct lwp *l, void *v, register_t *retval) 355 { 356 struct ultrix_sys_setsockopt_args *uap = v; 357 struct proc *p = l->l_proc; 358 struct file *fp; 359 struct mbuf *m = NULL; 360 int error; 361 struct sys_setsockopt_args ap; 362 363 SCARG(&ap, s) = SCARG(uap, s); 364 SCARG(&ap, level) = SCARG(uap, level); 365 SCARG(&ap, name) = SCARG(uap, name); 366 SCARG(&ap, val) = SCARG(uap, val); 367 SCARG(&ap, valsize) = SCARG(uap, valsize); 368 369 /* getsock() will use the descriptor for us */ 370 if ((error = getsock(p->p_fd, SCARG(&ap, s), &fp)) != 0) 371 return error; 372 #define SO_DONTLINGER (~SO_LINGER) 373 if (SCARG(&ap, name) == SO_DONTLINGER) { 374 m = m_get(M_WAIT, MT_SOOPTS); 375 mtod(m, struct linger *)->l_onoff = 0; 376 m->m_len = sizeof(struct linger); 377 error = sosetopt((struct socket *)fp->f_data, SCARG(&ap, level), 378 SO_LINGER, m); 379 } 380 if (SCARG(&ap, level) == IPPROTO_IP) { 381 #define EMUL_IP_MULTICAST_IF 2 382 #define EMUL_IP_MULTICAST_TTL 3 383 #define EMUL_IP_MULTICAST_LOOP 4 384 #define EMUL_IP_ADD_MEMBERSHIP 5 385 #define EMUL_IP_DROP_MEMBERSHIP 6 386 static const int ipoptxlat[] = { 387 IP_MULTICAST_IF, 388 IP_MULTICAST_TTL, 389 IP_MULTICAST_LOOP, 390 IP_ADD_MEMBERSHIP, 391 IP_DROP_MEMBERSHIP 392 }; 393 if (SCARG(&ap, name) >= EMUL_IP_MULTICAST_IF && 394 SCARG(&ap, name) <= EMUL_IP_DROP_MEMBERSHIP) { 395 SCARG(&ap, name) = 396 ipoptxlat[SCARG(&ap, name) - EMUL_IP_MULTICAST_IF]; 397 } 398 } 399 if (SCARG(&ap, valsize) > MLEN) { 400 error = EINVAL; 401 goto out; 402 } 403 if (SCARG(&ap, val)) { 404 m = m_get(M_WAIT, MT_SOOPTS); 405 error = copyin(SCARG(&ap, val), mtod(m, void *), 406 (u_int)SCARG(&ap, valsize)); 407 if (error) { 408 (void) m_free(m); 409 goto out; 410 } 411 m->m_len = SCARG(&ap, valsize); 412 } 413 error = sosetopt((struct socket *)fp->f_data, SCARG(&ap, level), 414 SCARG(&ap, name), m); 415 out: 416 FILE_UNUSE(fp, l); 417 return error; 418 } 419 420 #define ULTRIX__SYS_NMLN 32 421 422 struct ultrix_utsname { 423 char sysname[ULTRIX__SYS_NMLN]; 424 char nodename[ULTRIX__SYS_NMLN]; 425 char release[ULTRIX__SYS_NMLN]; 426 char version[ULTRIX__SYS_NMLN]; 427 char machine[ULTRIX__SYS_NMLN]; 428 }; 429 430 int 431 ultrix_sys_uname(struct lwp *l, void *v, register_t *retval) 432 { 433 struct ultrix_sys_uname_args *uap = v; 434 struct ultrix_utsname sut; 435 const char *cp; 436 char *dp, *ep; 437 438 memset(&sut, 0, sizeof(sut)); 439 440 strncpy(sut.sysname, ostype, sizeof(sut.sysname) - 1); 441 strncpy(sut.nodename, hostname, sizeof(sut.nodename) - 1); 442 strncpy(sut.release, osrelease, sizeof(sut.release) - 1); 443 dp = sut.version; 444 ep = &sut.version[sizeof(sut.version) - 1]; 445 for (cp = version; *cp && *cp != '('; cp++) 446 ; 447 for (cp++; *cp && *cp != ')' && dp < ep; cp++) 448 *dp++ = *cp; 449 for (; *cp && *cp != '#'; cp++) 450 ; 451 for (; *cp && *cp != ':' && dp < ep; cp++) 452 *dp++ = *cp; 453 *dp = '\0'; 454 strncpy(sut.machine, machine, sizeof(sut.machine) - 1); 455 456 return copyout(&sut, SCARG(uap, name), sizeof(sut)); 457 } 458 459 int 460 ultrix_sys_setpgrp(struct lwp *l, void *v, register_t *retval) 461 { 462 struct ultrix_sys_setpgrp_args *uap = v; 463 struct proc *p = l->l_proc; 464 struct sys_setpgid_args ap; 465 466 SCARG(&ap, pid) = SCARG(uap, pid); 467 SCARG(&ap, pgid) = SCARG(uap, pgid); 468 /* 469 * difference to our setpgid call is to include backwards 470 * compatibility to pre-setsid() binaries. Do setsid() 471 * instead of setpgid() in those cases where the process 472 * tries to create a new session the old way. 473 */ 474 if (!SCARG(&ap, pgid) && 475 (!SCARG(&ap, pid) || SCARG(&ap, pid) == p->p_pid)) 476 return sys_setsid(l, &ap, retval); 477 else 478 return sys_setpgid(l, &ap, retval); 479 } 480 481 #if defined (NFSSERVER) 482 int 483 ultrix_sys_nfssvc(struct lwp *l, void *v, register_t *retval) 484 { 485 486 #if 0 /* XXX */ 487 struct ultrix_sys_nfssvc_args *uap = v; 488 struct emul *e = p->p_emul; 489 struct sys_nfssvc_args outuap; 490 struct sockaddr sa; 491 int error; 492 void *sg = stackgap_init(p, 0); 493 494 memset(&outuap, 0, sizeof outuap); 495 SCARG(&outuap, fd) = SCARG(uap, fd); 496 SCARG(&outuap, mskval) = stackgap_alloc(p, &sg, sizeof sa); 497 SCARG(&outuap, msklen) = sizeof sa; 498 SCARG(&outuap, mtchval) = stackgap_alloc(p, &sg, sizeof sa); 499 SCARG(&outuap, mtchlen) = sizeof sa; 500 501 memset(&sa, 0, sizeof sa); 502 if (error = copyout(&sa, SCARG(&outuap, mskval), SCARG(&outuap, msklen))) 503 return error; 504 if (error = copyout(&sa, SCARG(&outuap, mtchval), SCARG(&outuap, mtchlen))) 505 return error; 506 507 return nfssvc(l, &outuap, retval); 508 #else 509 return ENOSYS; 510 #endif 511 } 512 #endif /* NFSSERVER */ 513 514 struct ultrix_ustat { 515 daddr_t f_tfree; /* total free */ 516 uint32_t f_tinode; /* total inodes free */ 517 char f_fname[6]; /* filsys name */ 518 char f_fpack[6]; /* filsys pack name */ 519 }; 520 521 int 522 ultrix_sys_ustat(struct lwp *l, void *v, register_t *retval) 523 { 524 struct ultrix_sys_ustat_args *uap = v; 525 struct ultrix_ustat us; 526 int error; 527 528 memset(&us, 0, sizeof us); 529 530 /* 531 * XXX: should set f_tfree and f_tinode at least 532 * How do we translate dev -> fstat? (and then to ultrix_ustat) 533 */ 534 535 if ((error = copyout(&us, SCARG(uap, buf), sizeof us)) != 0) 536 return error; 537 return 0; 538 } 539 540 int 541 ultrix_sys_quotactl(struct lwp *l, void *v, register_t *retval) 542 { 543 544 #ifdef notyet 545 struct ultrix_sys_quotactl_args *uap = v; 546 #endif 547 548 return EINVAL; 549 } 550 551 int 552 ultrix_sys_vhangup(struct lwp *l, const void *uap, register_t *retval) 553 { 554 555 return 0; 556 } 557 558 559 /* 560 * RISC Ultrix cache control syscalls 561 */ 562 #ifdef __mips 563 int 564 ultrix_sys_cacheflush(struct lwp *l, void *v, register_t *retval) 565 { 566 struct ultrix_sys_cacheflush_args /* { 567 syscallarg(void *) addr; 568 syscallarg(unsigned) nbytes; 569 syscallarg(int) flag; 570 } */ *uap = v; 571 struct proc *p = l->l_proc; 572 vaddr_t va = (vaddr_t)SCARG(uap, addr); 573 int nbytes = SCARG(uap, nbytes); 574 int whichcache = SCARG(uap, whichcache); 575 576 return mips_user_cacheflush(p, va, nbytes, whichcache); 577 } 578 579 580 int 581 ultrix_sys_cachectl(struct lwp *l, void *v, register_t *retval) 582 { 583 struct ultrix_sys_cachectl_args /* { 584 syscallarg(void *) addr; 585 syscallarg(int) nbytes; 586 syscallarg(int) cacheop; 587 } */ *uap = v; 588 struct proc *p = l->l_proc; 589 vaddr_t va = (vaddr_t)SCARG(uap, addr); 590 int nbytes = SCARG(uap, nbytes); 591 int cacheop = SCARG(uap, cacheop); 592 593 return mips_user_cachectl(p, va, nbytes, cacheop); 594 } 595 596 #endif /* __mips */ 597 598 599 int 600 ultrix_sys_exportfs(struct lwp *l, void *v, register_t *retval) 601 { 602 #ifdef notyet 603 struct ultrix_sys_exportfs_args *uap = v; 604 #endif 605 606 /* 607 * XXX: should perhaps translate into a mount(2) 608 * with MOUNT_EXPORT? 609 */ 610 return 0; 611 } 612 613 int 614 ultrix_sys_sigpending(struct lwp *l, void *v, register_t *retval) 615 { 616 struct ultrix_sys_sigpending_args *uap = v; 617 sigset_t ss; 618 int mask; 619 620 sigpending1(l, &ss); 621 mask = ss.__bits[0]; 622 623 return copyout(&mask, SCARG(uap, mask), sizeof(int)); 624 } 625 626 int 627 ultrix_sys_sigreturn(struct lwp *l, void *v, register_t *retval) 628 { 629 /* struct sigcontext13 is close enough to Ultrix */ 630 struct compat_13_sys_sigreturn_args ap; 631 632 SCARG(&ap, sigcntxp) = (void *)SCARG(uap, sigcntxp); 633 634 return compat_13_sys_sigreturn(l, &ap, retval); 635 } 636 637 int 638 ultrix_sys_sigcleanup(struct lwp *l, void *v, register_t *retval) 639 { 640 struct ultrix_sys_sigcleanup_args *uap = v; 641 642 /* struct sigcontext13 is close enough to Ultrix */ 643 struct compat_13_sys_sigreturn_args ap; 644 645 SCARG(&ap, sigcntxp) = (void *)SCARG(uap, sigcntxp); 646 647 return compat_13_sys_sigreturn(l, &ap, retval); 648 } 649 650 int 651 ultrix_sys_sigsuspend(struct lwp *l, void *v, register_t *retval) 652 { 653 struct ultrix_sys_sigsuspend_args *uap = v; 654 int mask = SCARG(uap, mask); 655 sigset_t ss; 656 657 ss.__bits[0] = mask; 658 ss.__bits[1] = 0; 659 ss.__bits[2] = 0; 660 ss.__bits[3] = 0; 661 662 return sigsuspend1(l, &ss); 663 } 664 665 #define ULTRIX_SV_ONSTACK 0x0001 /* take signal on signal stack */ 666 #define ULTRIX_SV_INTERRUPT 0x0002 /* do not restart system on signal return */ 667 #define ULTRIX_SV_OLDSIG 0x1000 /* Emulate old signal() for POSIX */ 668 669 int 670 ultrix_sys_sigvec(struct lwp *l, void *v, register_t *retval) 671 { 672 struct ultrix_sys_sigvec_args *uap = v; 673 struct sigvec nsv, osv; 674 struct sigaction nsa, osa; 675 int error; 676 677 if (SCARG(uap, nsv)) { 678 error = copyin(SCARG(uap, nsv), &nsv, sizeof(nsv)); 679 if (error) 680 return error; 681 nsa.sa_handler = nsv.sv_handler; 682 #if 0 /* documentation */ 683 /* ONSTACK is identical */ 684 nsa.sa_flags = nsv.sv_flags & ULTRIX_SV_ONSTACK; 685 if ((nsv.sv_flags & ULTRIX_SV_OLDSIG) 686 /* old signal() - always restart */ 687 || (!(nsv.sv_flags & ULTRIX_SV_INTERRUPT)) 688 /* inverted meaning (same bit) */ 689 ) 690 nsa.sa_flags |= SA_RESTART; 691 #else /* optimized - assuming ULTRIX_SV_OLDSIG=>!ULTRIX_SV_INTERRUPT */ 692 nsa.sa_flags = nsv.sv_flags & ~ULTRIX_SV_OLDSIG; 693 nsa.sa_flags ^= SA_RESTART; 694 #endif 695 native_sigset13_to_sigset(&nsv.sv_mask, &nsa.sa_mask); 696 } 697 error = sigaction1(l, SCARG(uap, signum), 698 SCARG(uap, nsv) ? &nsa : 0, SCARG(uap, osv) ? &osa : 0, 699 NULL, 0); 700 if (error) 701 return error; 702 if (SCARG(uap, osv)) { 703 osv.sv_handler = osa.sa_handler; 704 osv.sv_flags = osa.sa_flags ^ SA_RESTART; 705 osv.sv_flags &= (ULTRIX_SV_ONSTACK | ULTRIX_SV_INTERRUPT); 706 native_sigset_to_sigset13(&osa.sa_mask, &osv.sv_mask); 707 error = copyout(&osv, SCARG(uap, osv), sizeof(osv)); 708 if (error) 709 return error; 710 } 711 return 0; 712 } 713 714 int 715 ultrix_sys_shmsys(struct lwp *l, void *v, register_t *retval) 716 { 717 718 #ifdef SYSVSHM 719 /* Ultrix SVSHM weirndess: */ 720 struct ultrix_sys_shmsys_args *uap = v; 721 struct sys_shmat_args shmat_args; 722 struct compat_14_sys_shmctl_args shmctl_args; 723 struct sys_shmdt_args shmdt_args; 724 struct sys_shmget_args shmget_args; 725 726 727 switch (SCARG(uap, shmop)) { 728 case 0: /* Ultrix shmat() */ 729 SCARG(&shmat_args, shmid) = SCARG(uap, a2); 730 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a3); 731 SCARG(&shmat_args, shmflg) = SCARG(uap, a4); 732 return sys_shmat(l, &shmat_args, retval); 733 734 case 1: /* Ultrix shmctl() */ 735 SCARG(&shmctl_args, shmid) = SCARG(uap, a2); 736 SCARG(&shmctl_args, cmd) = SCARG(uap, a3); 737 SCARG(&shmctl_args, buf) = (struct shmid_ds14 *)SCARG(uap, a4); 738 return compat_14_sys_shmctl(l, &shmctl_args, retval); 739 740 case 2: /* Ultrix shmdt() */ 741 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a2); 742 return sys_shmdt(l, &shmdt_args, retval); 743 744 case 3: /* Ultrix shmget() */ 745 SCARG(&shmget_args, key) = SCARG(uap, a2); 746 SCARG(&shmget_args, size) = SCARG(uap, a3); 747 SCARG(&shmget_args, shmflg) = SCARG(uap, a4) 748 & (IPC_CREAT|IPC_EXCL|IPC_NOWAIT); 749 return sys_shmget(l, &shmget_args, retval); 750 751 default: 752 return EINVAL; 753 } 754 #else 755 return EOPNOTSUPP; 756 #endif /* SYSVSHM */ 757 } 758 759 static int 760 ultrix_to_bsd_flock(struct ultrix_flock *ufl, struct flock *fl) 761 { 762 763 fl->l_start = ufl->l_start; 764 fl->l_len = ufl->l_len; 765 fl->l_pid = ufl->l_pid; 766 fl->l_whence = ufl->l_whence; 767 768 switch (ufl->l_type) { 769 case ULTRIX_F_RDLCK: 770 fl->l_type = F_RDLCK; 771 break; 772 case ULTRIX_F_WRLCK: 773 fl->l_type = F_WRLCK; 774 break; 775 case ULTRIX_F_UNLCK: 776 fl->l_type = F_UNLCK; 777 break; 778 default: 779 return EINVAL; 780 } 781 782 return 0; 783 } 784 785 static void 786 bsd_to_ultrix_flock(struct flock *fl, struct ultrix_flock *ufl) 787 { 788 789 ufl->l_start = fl->l_start; 790 ufl->l_len = fl->l_len; 791 ufl->l_pid = fl->l_pid; 792 ufl->l_whence = fl->l_whence; 793 794 switch (fl->l_type) { 795 case F_RDLCK: 796 ufl->l_type = ULTRIX_F_RDLCK; 797 break; 798 case F_WRLCK: 799 ufl->l_type = ULTRIX_F_WRLCK; 800 break; 801 case F_UNLCK: 802 ufl->l_type = ULTRIX_F_UNLCK; 803 break; 804 } 805 } 806 807 int 808 ultrix_sys_fcntl(struct lwp *l, void *v, register_t *retval) 809 { 810 struct ultrix_sys_fcntl_args *uap = v; 811 int error; 812 struct ultrix_flock ufl; 813 struct flock fl; 814 815 switch (SCARG(uap, cmd)) { 816 case F_GETLK: 817 case F_SETLK: 818 case F_SETLKW: 819 error = copyin(SCARG(uap, arg), &ufl, sizeof(ufl)); 820 if (error) 821 return error; 822 error = ultrix_to_bsd_flock(&ufl, &fl); 823 if (error) 824 return error; 825 error = do_fcntl_lock(l, SCARG(uap, fd), SCARG(uap, cmd), &fl); 826 if (SCARG(uap, cmd) != F_GETLK || error != 0) 827 return error; 828 bsd_to_ultrix_flock(&fl, &ufl); 829 return copyout(&ufl, SCARG(uap, arg), sizeof(ufl)); 830 831 default: 832 break; 833 } 834 835 return sys_fcntl(l, v, retval); 836 } 837
Indexes created Fri Oct 03 02:09:57 GMT 2025