ultrix_misc.c revision 1.77
1 /* $NetBSD: ultrix_misc.c,v 1.77 2002/07/04 23:32:14 thorpej 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. All advertising materials mentioning features or use of this software 57 * must display the following acknowledgement: 58 * This product includes software developed by the University of 59 * California, Berkeley and its contributors. 60 * 4. Neither the name of the University nor the names of its contributors 61 * may be used to endorse or promote products derived from this software 62 * without specific prior written permission. 63 * 64 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 65 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 66 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 67 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 68 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 69 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 70 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 71 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 72 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 73 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 74 * SUCH DAMAGE. 75 * 76 * 77 * @(#)sun_misc.c 8.1 (Berkeley) 6/18/93 78 * 79 * from: Header: sun_misc.c,v 1.16 93/04/07 02:46:27 torek Exp 80 */ 81 82 #include <sys/cdefs.h> 83 __KERNEL_RCSID(0, "$NetBSD: ultrix_misc.c,v 1.77 2002/07/04 23:32:14 thorpej Exp $"); 84 85 #if defined(_KERNEL_OPT) 86 #include "opt_nfsserver.h" 87 #include "opt_sysv.h" 88 #endif 89 90 #include <sys/cdefs.h> /* RCS ID & Copyright macro defns */ 91 92 /* 93 * Ultrix compatibility module. 94 * 95 * Ultrix system calls that are implemented differently in BSD are 96 * handled here. 97 */ 98 99 #if defined(_KERNEL_OPT) 100 #include "fs_nfs.h" 101 #endif 102 103 #include <sys/param.h> 104 #include <sys/systm.h> 105 #include <sys/namei.h> 106 #include <sys/dirent.h> 107 #include <sys/proc.h> 108 #include <sys/file.h> 109 #include <sys/filedesc.h> 110 #include <sys/kernel.h> 111 #include <sys/exec.h> 112 #include <sys/malloc.h> 113 #include <sys/mbuf.h> 114 #include <sys/mman.h> 115 #include <sys/mount.h> 116 #include <sys/resource.h> 117 #include <sys/resourcevar.h> 118 #include <sys/signal.h> 119 #include <sys/signalvar.h> 120 #include <sys/socket.h> 121 #include <sys/vnode.h> 122 #include <sys/uio.h> 123 #include <sys/wait.h> 124 #include <sys/utsname.h> 125 #include <sys/unistd.h> 126 #include <sys/ipc.h> 127 128 #include <sys/syscallargs.h> 129 130 #include <compat/ultrix/ultrix_syscall.h> 131 #include <compat/ultrix/ultrix_syscallargs.h> 132 #include <compat/common/compat_util.h> 133 134 #include <netinet/in.h> 135 136 #include <miscfs/specfs/specdev.h> 137 138 #include <nfs/rpcv2.h> 139 #include <nfs/nfsproto.h> 140 #include <nfs/nfs.h> 141 142 #include <sys/conf.h> /* iszerodev() */ 143 #include <sys/socketvar.h> /* sosetopt() */ 144 145 #include <compat/ultrix/ultrix_flock.h> 146 147 #ifdef __mips 148 #include <mips/cachectl.h> 149 #endif 150 151 static int ultrix_to_bsd_flock __P((struct ultrix_flock *, struct flock *)); 152 static void bsd_to_ultrix_flock __P((struct flock *, struct ultrix_flock *)); 153 154 extern struct sysent ultrix_sysent[]; 155 extern const char * const ultrix_syscallnames[]; 156 extern char ultrix_sigcode[], ultrix_esigcode[]; 157 #ifdef __HAVE_SYSCALL_INTERN 158 void syscall_intern(struct proc *); 159 #else 160 void syscall __P((void)); 161 #endif 162 163 const struct emul emul_ultrix = { 164 "ultrix", 165 "/emul/ultrix", 166 #ifndef __HAVE_MINIMAL_EMUL 167 0, 168 NULL, 169 ULTRIX_SYS_syscall, 170 ULTRIX_SYS_MAXSYSCALL, 171 #endif 172 ultrix_sysent, 173 ultrix_syscallnames, 174 sendsig, 175 trapsignal, 176 ultrix_sigcode, 177 ultrix_esigcode, 178 setregs, 179 NULL, 180 NULL, 181 NULL, 182 #ifdef __HAVE_SYSCALL_INTERN 183 syscall_intern, 184 #else 185 syscall, 186 #endif 187 }; 188 189 #define GSI_PROG_ENV 1 190 191 int 192 ultrix_sys_getsysinfo(p, v, retval) 193 struct proc *p; 194 void *v; 195 register_t *retval; 196 { 197 struct ultrix_sys_getsysinfo_args *uap = v; 198 static short progenv = 0; 199 200 switch (SCARG(uap, op)) { 201 /* operations implemented: */ 202 case GSI_PROG_ENV: 203 if (SCARG(uap, nbytes) < sizeof(short)) 204 return EINVAL; 205 *retval = 1; 206 return (copyout(&progenv, SCARG(uap, buffer), sizeof(short))); 207 default: 208 *retval = 0; /* info unavail */ 209 return 0; 210 } 211 } 212 213 int 214 ultrix_sys_setsysinfo(p, v, retval) 215 struct proc *p; 216 void *v; 217 register_t *retval; 218 { 219 220 #ifdef notyet 221 struct ultrix_sys_setsysinfo_args *uap = v; 222 #endif 223 224 *retval = 0; 225 return 0; 226 } 227 228 int 229 ultrix_sys_waitpid(p, v, retval) 230 struct proc *p; 231 void *v; 232 register_t *retval; 233 { 234 struct ultrix_sys_waitpid_args *uap = v; 235 struct sys_wait4_args ua; 236 237 SCARG(&ua, pid) = SCARG(uap, pid); 238 SCARG(&ua, status) = SCARG(uap, status); 239 SCARG(&ua, options) = SCARG(uap, options); 240 SCARG(&ua, rusage) = 0; 241 242 return (sys_wait4(p, &ua, retval)); 243 } 244 245 int 246 ultrix_sys_wait3(p, v, retval) 247 struct proc *p; 248 void *v; 249 register_t *retval; 250 { 251 struct ultrix_sys_wait3_args *uap = v; 252 struct sys_wait4_args ua; 253 254 SCARG(&ua, pid) = -1; 255 SCARG(&ua, status) = SCARG(uap, status); 256 SCARG(&ua, options) = SCARG(uap, options); 257 SCARG(&ua, rusage) = SCARG(uap, rusage); 258 259 return (sys_wait4(p, &ua, retval)); 260 } 261 262 /* 263 * Ultrix binaries pass in FD_MAX as the first arg to select(). 264 * On Ultrix, FD_MAX is 4096, which is more than the NetBSD sys_select() 265 * can handle. 266 * Since we can't have more than the (native) FD_MAX descriptors open, 267 * limit nfds to at most FD_MAX. 268 */ 269 int 270 ultrix_sys_select(p, v, retval) 271 struct proc *p; 272 void *v; 273 register_t *retval; 274 { 275 struct sys_select_args *uap = v; 276 struct timeval atv; 277 int error; 278 279 /* Limit number of FDs selected on to the native maximum */ 280 281 if (SCARG(uap, nd) > FD_SETSIZE) 282 SCARG(uap, nd) = FD_SETSIZE; 283 284 /* Check for negative timeval */ 285 if (SCARG(uap, tv)) { 286 error = copyin((caddr_t)SCARG(uap, tv), (caddr_t)&atv, 287 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(p, (void*) uap, 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(p, v, retval) 309 struct proc *p; 310 void *v; 311 register_t *retval; 312 { 313 struct sys_nfssvc_args ouap; 314 315 SCARG(&ouap, flag) = NFSSVC_BIOD; 316 SCARG(&ouap, argp) = NULL; 317 318 return (sys_nfssvc(p, &ouap, retval)); 319 } 320 #endif /* NFS */ 321 322 323 #define SUN__MAP_NEW 0x80000000 /* if not, old mmap & cannot handle */ 324 325 int 326 ultrix_sys_mmap(p, v, retval) 327 struct proc *p; 328 void *v; 329 register_t *retval; 330 { 331 struct ultrix_sys_mmap_args *uap = v; 332 struct sys_mmap_args ouap; 333 struct filedesc *fdp; 334 struct file *fp; 335 struct vnode *vp; 336 337 /* 338 * Verify the arguments. 339 */ 340 if (SCARG(uap, prot) & ~(PROT_READ|PROT_WRITE|PROT_EXEC)) 341 return (EINVAL); /* XXX still needed? */ 342 343 if ((SCARG(uap, flags) & SUN__MAP_NEW) == 0) 344 return (EINVAL); 345 346 SCARG(&ouap, flags) = SCARG(uap, flags) & ~SUN__MAP_NEW; 347 SCARG(&ouap, addr) = SCARG(uap, addr); 348 349 if ((SCARG(&ouap, flags) & MAP_FIXED) == 0 && 350 SCARG(&ouap, addr) != 0 && 351 SCARG(&ouap, addr) < (void *)round_page((vaddr_t)p->p_vmspace->vm_daddr+MAXDSIZ)) 352 SCARG(&ouap, addr) = (void *)round_page((vaddr_t)p->p_vmspace->vm_daddr+MAXDSIZ); 353 354 SCARG(&ouap, len) = SCARG(uap, len); 355 SCARG(&ouap, prot) = SCARG(uap, prot); 356 SCARG(&ouap, fd) = SCARG(uap, fd); 357 SCARG(&ouap, pos) = SCARG(uap, pos); 358 359 /* 360 * Special case: if fd refers to /dev/zero, map as MAP_ANON. (XXX) 361 */ 362 fdp = p->p_fd; 363 if ((fp = fd_getfile(fdp, SCARG(&ouap, fd))) != NULL && /*XXX*/ 364 fp->f_type == DTYPE_VNODE && /*XXX*/ 365 (vp = (struct vnode *)fp->f_data)->v_type == VCHR && /*XXX*/ 366 iszerodev(vp->v_rdev)) { /*XXX*/ 367 SCARG(&ouap, flags) |= MAP_ANON; 368 SCARG(&ouap, fd) = -1; 369 } 370 371 return (sys_mmap(p, &ouap, retval)); 372 } 373 374 int 375 ultrix_sys_setsockopt(p, v, retval) 376 struct proc *p; 377 void *v; 378 register_t *retval; 379 { 380 struct ultrix_sys_setsockopt_args *uap = v; 381 struct file *fp; 382 struct mbuf *m = NULL; 383 int error; 384 385 /* getsock() will use the descriptor for us */ 386 if ((error = getsock(p->p_fd, SCARG(uap, s), &fp)) != 0) 387 return (error); 388 #define SO_DONTLINGER (~SO_LINGER) 389 if (SCARG(uap, name) == SO_DONTLINGER) { 390 m = m_get(M_WAIT, MT_SOOPTS); 391 mtod(m, struct linger *)->l_onoff = 0; 392 m->m_len = sizeof(struct linger); 393 error = sosetopt((struct socket *)fp->f_data, SCARG(uap, level), 394 SO_LINGER, m); 395 } 396 if (SCARG(uap, level) == IPPROTO_IP) { 397 #define EMUL_IP_MULTICAST_IF 2 398 #define EMUL_IP_MULTICAST_TTL 3 399 #define EMUL_IP_MULTICAST_LOOP 4 400 #define EMUL_IP_ADD_MEMBERSHIP 5 401 #define EMUL_IP_DROP_MEMBERSHIP 6 402 static int ipoptxlat[] = { 403 IP_MULTICAST_IF, 404 IP_MULTICAST_TTL, 405 IP_MULTICAST_LOOP, 406 IP_ADD_MEMBERSHIP, 407 IP_DROP_MEMBERSHIP 408 }; 409 if (SCARG(uap, name) >= EMUL_IP_MULTICAST_IF && 410 SCARG(uap, name) <= EMUL_IP_DROP_MEMBERSHIP) { 411 SCARG(uap, name) = 412 ipoptxlat[SCARG(uap, name) - EMUL_IP_MULTICAST_IF]; 413 } 414 } 415 if (SCARG(uap, valsize) > MLEN) { 416 error = EINVAL; 417 goto out; 418 } 419 if (SCARG(uap, val)) { 420 m = m_get(M_WAIT, MT_SOOPTS); 421 error = copyin(SCARG(uap, val), mtod(m, caddr_t), 422 (u_int)SCARG(uap, valsize)); 423 if (error) { 424 (void) m_free(m); 425 goto out; 426 } 427 m->m_len = SCARG(uap, valsize); 428 } 429 error = sosetopt((struct socket *)fp->f_data, SCARG(uap, level), 430 SCARG(uap, name), m); 431 out: 432 FILE_UNUSE(fp, p); 433 return (error); 434 } 435 436 #define ULTRIX__SYS_NMLN 32 437 438 struct ultrix_utsname { 439 char sysname[ULTRIX__SYS_NMLN]; 440 char nodename[ULTRIX__SYS_NMLN]; 441 char release[ULTRIX__SYS_NMLN]; 442 char version[ULTRIX__SYS_NMLN]; 443 char machine[ULTRIX__SYS_NMLN]; 444 }; 445 446 int 447 ultrix_sys_uname(p, v, retval) 448 struct proc *p; 449 void *v; 450 register_t *retval; 451 { 452 struct ultrix_sys_uname_args *uap = v; 453 struct ultrix_utsname sut; 454 const char *cp; 455 char *dp, *ep; 456 457 memset(&sut, 0, sizeof(sut)); 458 459 strncpy(sut.sysname, ostype, sizeof(sut.sysname) - 1); 460 strncpy(sut.nodename, hostname, sizeof(sut.nodename) - 1); 461 strncpy(sut.release, osrelease, sizeof(sut.release) - 1); 462 dp = sut.version; 463 ep = &sut.version[sizeof(sut.version) - 1]; 464 for (cp = version; *cp && *cp != '('; cp++) 465 ; 466 for (cp++; *cp && *cp != ')' && dp < ep; cp++) 467 *dp++ = *cp; 468 for (; *cp && *cp != '#'; cp++) 469 ; 470 for (; *cp && *cp != ':' && dp < ep; cp++) 471 *dp++ = *cp; 472 *dp = '\0'; 473 strncpy(sut.machine, machine, sizeof(sut.machine) - 1); 474 475 return copyout((caddr_t)&sut, (caddr_t)SCARG(uap, name), 476 sizeof(struct ultrix_utsname)); 477 } 478 479 int 480 ultrix_sys_setpgrp(p, v, retval) 481 struct proc *p; 482 void *v; 483 register_t *retval; 484 { 485 struct ultrix_sys_setpgrp_args *uap = v; 486 487 /* 488 * difference to our setpgid call is to include backwards 489 * compatibility to pre-setsid() binaries. Do setsid() 490 * instead of setpgid() in those cases where the process 491 * tries to create a new session the old way. 492 */ 493 if (!SCARG(uap, pgid) && 494 (!SCARG(uap, pid) || SCARG(uap, pid) == p->p_pid)) 495 return sys_setsid(p, uap, retval); 496 else 497 return sys_setpgid(p, uap, retval); 498 } 499 500 #if defined (NFSSERVER) 501 int 502 ultrix_sys_nfssvc(p, v, retval) 503 struct proc *p; 504 void *v; 505 register_t *retval; 506 { 507 508 #if 0 /* XXX */ 509 struct ultrix_sys_nfssvc_args *uap = v; 510 struct emul *e = p->p_emul; 511 struct sys_nfssvc_args outuap; 512 struct sockaddr sa; 513 int error; 514 caddr_t sg = stackgap_init(p, 0); 515 516 memset(&outuap, 0, sizeof outuap); 517 SCARG(&outuap, fd) = SCARG(uap, fd); 518 SCARG(&outuap, mskval) = stackgap_alloc(p, &sg, sizeof sa); 519 SCARG(&outuap, msklen) = sizeof sa; 520 SCARG(&outuap, mtchval) = stackgap_alloc(p, &sg, sizeof sa); 521 SCARG(&outuap, mtchlen) = sizeof sa; 522 523 memset(&sa, 0, sizeof sa); 524 if (error = copyout(&sa, SCARG(&outuap, mskval), SCARG(&outuap, msklen))) 525 return (error); 526 if (error = copyout(&sa, SCARG(&outuap, mtchval), SCARG(&outuap, mtchlen))) 527 return (error); 528 529 return nfssvc(p, &outuap, retval); 530 #else 531 return (ENOSYS); 532 #endif 533 } 534 #endif /* NFSSERVER */ 535 536 struct ultrix_ustat { 537 daddr_t f_tfree; /* total free */ 538 ino_t f_tinode; /* total inodes free */ 539 char f_fname[6]; /* filsys name */ 540 char f_fpack[6]; /* filsys pack name */ 541 }; 542 543 int 544 ultrix_sys_ustat(p, v, retval) 545 struct proc *p; 546 void *v; 547 register_t *retval; 548 { 549 struct ultrix_sys_ustat_args *uap = v; 550 struct ultrix_ustat us; 551 int error; 552 553 memset(&us, 0, sizeof us); 554 555 /* 556 * XXX: should set f_tfree and f_tinode at least 557 * How do we translate dev -> fstat? (and then to ultrix_ustat) 558 */ 559 560 if ((error = copyout(&us, SCARG(uap, buf), sizeof us)) != 0) 561 return (error); 562 return 0; 563 } 564 565 int 566 ultrix_sys_quotactl(p, v, retval) 567 struct proc *p; 568 void *v; 569 register_t *retval; 570 { 571 572 #ifdef notyet 573 struct ultrix_sys_quotactl_args *uap = v; 574 #endif 575 576 return EINVAL; 577 } 578 579 int 580 ultrix_sys_vhangup(p, v, retval) 581 struct proc *p; 582 void *v; 583 register_t *retval; 584 { 585 586 return 0; 587 } 588 589 590 /* 591 * RISC Ultrix cache control syscalls 592 */ 593 #ifdef __mips 594 int 595 ultrix_sys_cacheflush(p, v, retval) 596 struct proc *p; 597 void *v; 598 register_t *retval; 599 { 600 struct ultrix_sys_cacheflush_args /* { 601 syscallarg(void *) addr; 602 syscallarg(int) nbytes; 603 syscallarg(int) flag; 604 } */ *uap = v; 605 vaddr_t va = (vaddr_t)SCARG(uap, addr); 606 int nbytes = SCARG(uap, nbytes); 607 int whichcache = SCARG(uap, whichcache); 608 609 return (mips_user_cacheflush(p, va, nbytes, whichcache)); 610 } 611 612 613 int 614 ultrix_sys_cachectl(p, v, retval) 615 struct proc *p; 616 void *v; 617 register_t *retval; 618 { 619 struct ultrix_sys_cachectl_args /* { 620 syscallarg(void *) addr; 621 syscallarg(int) nbytes; 622 syscallarg(int) cacheop; 623 } */ *uap = v; 624 vaddr_t va = (vaddr_t)SCARG(uap, addr); 625 int nbytes = SCARG(uap, nbytes); 626 int cacheop = SCARG(uap, cacheop); 627 628 return mips_user_cachectl(p, va, nbytes, cacheop); 629 } 630 631 #endif /* __mips */ 632 633 634 int 635 ultrix_sys_exportfs(p, v, retval) 636 struct proc *p; 637 void *v; 638 register_t *retval; 639 { 640 #ifdef notyet 641 struct ultrix_sys_exportfs_args *uap = v; 642 #endif 643 644 /* 645 * XXX: should perhaps translate into a mount(2) 646 * with MOUNT_EXPORT? 647 */ 648 return 0; 649 } 650 651 int 652 ultrix_sys_sigpending(p, v, retval) 653 struct proc *p; 654 void *v; 655 register_t *retval; 656 { 657 struct ultrix_sys_sigpending_args *uap = v; 658 sigset_t ss; 659 int mask; 660 661 sigpending1(p, &ss); 662 mask = ss.__bits[0]; 663 664 return (copyout((caddr_t)&mask, (caddr_t)SCARG(uap, mask), sizeof(int))); 665 } 666 667 int 668 ultrix_sys_sigreturn(p, v, retval) 669 struct proc *p; 670 void *v; 671 register_t *retval; 672 { 673 struct ultrix_sys_sigreturn_args *uap = v; 674 675 /* struct sigcontext13 is close enough to Ultrix */ 676 677 return (compat_13_sys_sigreturn(p, uap, retval)); 678 } 679 680 int 681 ultrix_sys_sigcleanup(p, v, retval) 682 struct proc *p; 683 void *v; 684 register_t *retval; 685 { 686 struct ultrix_sys_sigcleanup_args *uap = v; 687 688 /* struct sigcontext13 is close enough to Ultrix */ 689 690 return (compat_13_sys_sigreturn(p, uap, retval)); 691 } 692 693 int 694 ultrix_sys_sigsuspend(p, v, retval) 695 struct proc *p; 696 void *v; 697 register_t *retval; 698 { 699 struct ultrix_sys_sigsuspend_args *uap = v; 700 int mask = SCARG(uap, mask); 701 sigset_t ss; 702 703 ss.__bits[0] = mask; 704 ss.__bits[1] = 0; 705 ss.__bits[2] = 0; 706 ss.__bits[3] = 0; 707 708 return (sigsuspend1(p, &ss)); 709 } 710 711 #define ULTRIX_SV_ONSTACK 0x0001 /* take signal on signal stack */ 712 #define ULTRIX_SV_INTERRUPT 0x0002 /* do not restart system on signal return */ 713 #define ULTRIX_SV_OLDSIG 0x1000 /* Emulate old signal() for POSIX */ 714 715 int 716 ultrix_sys_sigvec(p, v, retval) 717 struct proc *p; 718 void *v; 719 register_t *retval; 720 { 721 struct ultrix_sys_sigvec_args *uap = v; 722 struct sigvec nsv, osv; 723 struct sigaction nsa, osa; 724 int error; 725 726 if (SCARG(uap, nsv)) { 727 error = copyin(SCARG(uap, nsv), &nsv, sizeof(nsv)); 728 if (error) 729 return (error); 730 nsa.sa_handler = nsv.sv_handler; 731 #if 0 /* documentation */ 732 /* ONSTACK is identical */ 733 nsa.sa_flags = nsv.sv_flags & ULTRIX_SV_ONSTACK; 734 if ((nsv.sv_flags & ULTRIX_SV_OLDSIG) 735 /* old signal() - always restart */ 736 || (!(nsv.sv_flags & ULTRIX_SV_INTERRUPT)) 737 /* inverted meaning (same bit) */ 738 ) 739 nsa.sa_flags |= SA_RESTART; 740 #else /* optimized - assuming ULTRIX_SV_OLDSIG=>!ULTRIX_SV_INTERRUPT */ 741 nsa.sa_flags = nsv.sv_flags & ~ULTRIX_SV_OLDSIG; 742 nsa.sa_flags ^= SA_RESTART; 743 #endif 744 native_sigset13_to_sigset(&nsv.sv_mask, &nsa.sa_mask); 745 } 746 error = sigaction1(p, SCARG(uap, signum), 747 SCARG(uap, nsv) ? &nsa : 0, SCARG(uap, osv) ? &osa : 0, 748 NULL, 0); 749 if (error) 750 return (error); 751 if (SCARG(uap, osv)) { 752 osv.sv_handler = osa.sa_handler; 753 osv.sv_flags = osa.sa_flags ^ SA_RESTART; 754 osv.sv_flags &= (ULTRIX_SV_ONSTACK | ULTRIX_SV_INTERRUPT); 755 native_sigset_to_sigset13(&osa.sa_mask, &osv.sv_mask); 756 error = copyout(&osv, SCARG(uap, osv), sizeof(osv)); 757 if (error) 758 return (error); 759 } 760 return (0); 761 } 762 763 int 764 ultrix_sys_shmsys(p, v, retval) 765 struct proc *p; 766 void *v; 767 register_t *retval; 768 { 769 770 #ifdef SYSVSHM 771 772 /* Ultrix SVSHM weirndess: */ 773 struct ultrix_sys_shmsys_args *uap = v; 774 struct sys_shmat_args shmat_args; 775 struct compat_14_sys_shmctl_args shmctl_args; 776 struct sys_shmdt_args shmdt_args; 777 struct sys_shmget_args shmget_args; 778 779 780 switch (SCARG(uap, shmop)) { 781 case 0: /* Ultrix shmat() */ 782 SCARG(&shmat_args, shmid) = SCARG(uap, a2); 783 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a3); 784 SCARG(&shmat_args, shmflg) = SCARG(uap, a4); 785 return (sys_shmat(p, &shmat_args, retval)); 786 787 case 1: /* Ultrix shmctl() */ 788 SCARG(&shmctl_args, shmid) = SCARG(uap, a2); 789 SCARG(&shmctl_args, cmd) = SCARG(uap, a3); 790 SCARG(&shmctl_args, buf) = (struct shmid_ds14 *)SCARG(uap, a4); 791 return (compat_14_sys_shmctl(p, &shmctl_args, retval)); 792 793 case 2: /* Ultrix shmdt() */ 794 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a2); 795 return (sys_shmdt(p, &shmdt_args, retval)); 796 797 case 3: /* Ultrix shmget() */ 798 SCARG(&shmget_args, key) = SCARG(uap, a2); 799 SCARG(&shmget_args, size) = SCARG(uap, a3); 800 SCARG(&shmget_args, shmflg) = SCARG(uap, a4) 801 & (IPC_CREAT|IPC_EXCL|IPC_NOWAIT); 802 return (sys_shmget(p, &shmget_args, retval)); 803 804 default: 805 return (EINVAL); 806 } 807 #else 808 return (EOPNOTSUPP); 809 #endif /* SYSVSHM */ 810 } 811 812 static int 813 ultrix_to_bsd_flock(ufl, fl) 814 struct ultrix_flock *ufl; 815 struct flock *fl; 816 { 817 818 fl->l_start = ufl->l_start; 819 fl->l_len = ufl->l_len; 820 fl->l_pid = ufl->l_pid; 821 fl->l_whence = ufl->l_whence; 822 823 switch (ufl->l_type) { 824 case ULTRIX_F_RDLCK: 825 fl->l_type = F_RDLCK; 826 break; 827 case ULTRIX_F_WRLCK: 828 fl->l_type = F_WRLCK; 829 break; 830 case ULTRIX_F_UNLCK: 831 fl->l_type = F_UNLCK; 832 break; 833 default: 834 return (EINVAL); 835 } 836 837 return (0); 838 } 839 840 static void 841 bsd_to_ultrix_flock(fl, ufl) 842 struct flock *fl; 843 struct ultrix_flock *ufl; 844 { 845 846 ufl->l_start = fl->l_start; 847 ufl->l_len = fl->l_len; 848 ufl->l_pid = fl->l_pid; 849 ufl->l_whence = fl->l_whence; 850 851 switch (fl->l_type) { 852 case F_RDLCK: 853 ufl->l_type = ULTRIX_F_RDLCK; 854 break; 855 case F_WRLCK: 856 ufl->l_type = ULTRIX_F_WRLCK; 857 break; 858 case F_UNLCK: 859 ufl->l_type = ULTRIX_F_UNLCK; 860 break; 861 } 862 } 863 864 int 865 ultrix_sys_fcntl(p, v, retval) 866 struct proc *p; 867 void *v; 868 register_t *retval; 869 { 870 struct ultrix_sys_fcntl_args *uap = v; 871 int error; 872 struct ultrix_flock ufl; 873 struct flock fl, *flp; 874 caddr_t sg; 875 struct sys_fcntl_args *args, fca; 876 877 switch (SCARG(uap, cmd)) { 878 case F_GETLK: 879 case F_SETLK: 880 case F_SETLKW: 881 error = copyin(SCARG(uap, arg), &ufl, sizeof(ufl)); 882 if (error) 883 return (error); 884 error = ultrix_to_bsd_flock(&ufl, &fl); 885 if (error) 886 return (error); 887 sg = stackgap_init(p, 0); 888 flp = (struct flock *)stackgap_alloc(p, &sg, sizeof(*flp)); 889 error = copyout(&fl, flp, sizeof(*flp)); 890 if (error) 891 return (error); 892 893 SCARG(&fca, fd) = SCARG(uap, fd); 894 SCARG(&fca, cmd) = SCARG(uap, cmd); 895 SCARG(&fca, arg) = flp; 896 args = &fca; 897 break; 898 default: 899 args = v; 900 break; 901 } 902 903 error = sys_fcntl(p, args, retval); 904 if (error) 905 return (error); 906 907 switch (SCARG(uap, cmd)) { 908 case F_GETLK: 909 error = copyin(flp, &fl, sizeof(fl)); 910 if (error) 911 return (error); 912 bsd_to_ultrix_flock(&fl, &ufl); 913 error = copyout(&ufl, SCARG(uap, arg), sizeof(ufl)); 914 break; 915 } 916 917 return (error); 918 } 919
Indexes created Mon Sep 22 10:09:38 GMT 2025