ultrix_misc.c revision 1.67
1 /* $NetBSD: ultrix_misc.c,v 1.67 2001/01/07 04:13:17 simonb 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 #if defined(_KERNEL) && !defined(_LKM) 83 #include "opt_nfsserver.h" 84 #include "opt_sysv.h" 85 #endif 86 87 #include <sys/cdefs.h> /* RCS ID & Copyright macro defns */ 88 89 /* 90 * Ultrix compatibility module. 91 * 92 * Ultrix system calls that are implemented differently in BSD are 93 * handled here. 94 */ 95 96 #if defined(_KERNEL) && !defined(_LKM) 97 #include "fs_nfs.h" 98 #endif 99 100 #include <sys/param.h> 101 #include <sys/systm.h> 102 #include <sys/namei.h> 103 #include <sys/dirent.h> 104 #include <sys/proc.h> 105 #include <sys/file.h> 106 #include <sys/filedesc.h> 107 #include <sys/kernel.h> 108 #include <sys/exec.h> 109 #include <sys/malloc.h> 110 #include <sys/mbuf.h> 111 #include <sys/mman.h> 112 #include <sys/mount.h> 113 #include <sys/resource.h> 114 #include <sys/resourcevar.h> 115 #include <sys/signal.h> 116 #include <sys/signalvar.h> 117 #include <sys/socket.h> 118 #include <sys/vnode.h> 119 #include <sys/uio.h> 120 #include <sys/wait.h> 121 #include <sys/utsname.h> 122 #include <sys/unistd.h> 123 #include <sys/ipc.h> 124 125 #include <sys/syscallargs.h> 126 127 #include <compat/ultrix/ultrix_syscall.h> 128 #include <compat/ultrix/ultrix_syscallargs.h> 129 #include <compat/common/compat_util.h> 130 131 #include <netinet/in.h> 132 133 #include <miscfs/specfs/specdev.h> 134 135 #include <nfs/rpcv2.h> 136 #include <nfs/nfsproto.h> 137 #include <nfs/nfs.h> 138 139 #include <sys/conf.h> /* iszerodev() */ 140 #include <sys/socketvar.h> /* sosetopt() */ 141 142 #include <compat/ultrix/ultrix_flock.h> 143 144 #ifdef __mips 145 #include <mips/cachectl.h> 146 #endif 147 148 static int ultrix_to_bsd_flock __P((struct ultrix_flock *, struct flock *)); 149 static void bsd_to_ultrix_flock __P((struct flock *, struct ultrix_flock *)); 150 151 extern struct sysent ultrix_sysent[]; 152 extern const char * const ultrix_syscallnames[]; 153 154 #if 0 155 /* XXX what executable format does Ultrix/vax use ? */ 156 /* 157 * Select the appropriate setregs callback for the target architecture. 158 */ 159 #ifdef __mips__ 160 #include <machine/ecoff_machdep.h> 161 #define ULTRIX_EXEC_SETREGS cpu_exec_ecoff_setregs 162 #endif /* mips */ 163 164 #ifdef __vax__ 165 #define ULTRIX_EXEC_SETREGS setregs 166 #endif /* vax */ 167 #endif 168 169 170 extern char ultrix_sigcode[], ultrix_esigcode[]; 171 void syscall __P((void)); 172 173 const struct emul emul_ultrix = { 174 "ultrix", 175 "/emul/ultrix", 176 0, 177 NULL, 178 ULTRIX_SYS_syscall, 179 ULTRIX_SYS_MAXSYSCALL, 180 ultrix_sysent, 181 ultrix_syscallnames, 182 sendsig, 183 ultrix_sigcode, 184 ultrix_esigcode, 185 NULL, 186 NULL, 187 NULL, 188 syscall 189 }; 190 191 #define GSI_PROG_ENV 1 192 193 int 194 ultrix_sys_getsysinfo(p, v, retval) 195 struct proc *p; 196 void *v; 197 register_t *retval; 198 { 199 struct ultrix_sys_getsysinfo_args *uap = v; 200 static short progenv = 0; 201 202 switch (SCARG(uap, op)) { 203 /* operations implemented: */ 204 case GSI_PROG_ENV: 205 if (SCARG(uap, nbytes) < sizeof(short)) 206 return EINVAL; 207 *retval = 1; 208 return (copyout(&progenv, SCARG(uap, buffer), sizeof(short))); 209 default: 210 *retval = 0; /* info unavail */ 211 return 0; 212 } 213 } 214 215 int 216 ultrix_sys_setsysinfo(p, v, retval) 217 struct proc *p; 218 void *v; 219 register_t *retval; 220 { 221 222 #ifdef notyet 223 struct ultrix_sys_setsysinfo_args *uap = v; 224 #endif 225 226 *retval = 0; 227 return 0; 228 } 229 230 int 231 ultrix_sys_waitpid(p, v, retval) 232 struct proc *p; 233 void *v; 234 register_t *retval; 235 { 236 struct ultrix_sys_waitpid_args *uap = v; 237 struct sys_wait4_args ua; 238 239 SCARG(&ua, pid) = SCARG(uap, pid); 240 SCARG(&ua, status) = SCARG(uap, status); 241 SCARG(&ua, options) = SCARG(uap, options); 242 SCARG(&ua, rusage) = 0; 243 244 return (sys_wait4(p, &ua, retval)); 245 } 246 247 int 248 ultrix_sys_wait3(p, v, retval) 249 struct proc *p; 250 void *v; 251 register_t *retval; 252 { 253 struct ultrix_sys_wait3_args *uap = v; 254 struct sys_wait4_args ua; 255 256 SCARG(&ua, pid) = -1; 257 SCARG(&ua, status) = SCARG(uap, status); 258 SCARG(&ua, options) = SCARG(uap, options); 259 SCARG(&ua, rusage) = SCARG(uap, rusage); 260 261 return (sys_wait4(p, &ua, retval)); 262 } 263 264 /* 265 * Ultrix binaries pass in FD_MAX as the first arg to select(). 266 * On Ultrix, FD_MAX is 4096, which is more than the NetBSD sys_select() 267 * can handle. 268 * Since we can't have more than the (native) FD_MAX descriptors open, 269 * limit nfds to at most FD_MAX. 270 */ 271 int 272 ultrix_sys_select(p, v, retval) 273 struct proc *p; 274 void *v; 275 register_t *retval; 276 { 277 struct sys_select_args *uap = v; 278 struct timeval atv; 279 int error; 280 281 /* Limit number of FDs selected on to the native maximum */ 282 283 if (SCARG(uap, nd) > FD_SETSIZE) 284 SCARG(uap, nd) = FD_SETSIZE; 285 286 /* Check for negative timeval */ 287 if (SCARG(uap, tv)) { 288 error = copyin((caddr_t)SCARG(uap, tv), (caddr_t)&atv, 289 sizeof(atv)); 290 if (error) 291 goto done; 292 #ifdef DEBUG 293 /* Ultrix clients sometimes give negative timeouts? */ 294 if (atv.tv_sec < 0 || atv.tv_usec < 0) 295 printf("ultrix select( %ld, %ld): negative timeout\n", 296 atv.tv_sec, atv.tv_usec); 297 /*tvp = (timeval *)STACKGAPBASE;*/ 298 #endif 299 300 } 301 error = sys_select(p, (void*) uap, retval); 302 if (error == EINVAL) 303 printf("ultrix select: bad args?\n"); 304 305 done: 306 return error; 307 } 308 309 #if defined(NFS) 310 int 311 async_daemon(p, v, retval) 312 struct proc *p; 313 void *v; 314 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(p, &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(p, v, retval) 330 struct proc *p; 331 void *v; 332 register_t *retval; 333 { 334 struct ultrix_sys_mmap_args *uap = v; 335 struct sys_mmap_args ouap; 336 struct filedesc *fdp; 337 struct file *fp; 338 struct vnode *vp; 339 340 /* 341 * Verify the arguments. 342 */ 343 if (SCARG(uap, prot) & ~(PROT_READ|PROT_WRITE|PROT_EXEC)) 344 return (EINVAL); /* XXX still needed? */ 345 346 if ((SCARG(uap, flags) & SUN__MAP_NEW) == 0) 347 return (EINVAL); 348 349 SCARG(&ouap, flags) = SCARG(uap, flags) & ~SUN__MAP_NEW; 350 SCARG(&ouap, addr) = SCARG(uap, addr); 351 352 if ((SCARG(&ouap, flags) & MAP_FIXED) == 0 && 353 SCARG(&ouap, addr) != 0 && 354 SCARG(&ouap, addr) < (void *)round_page((vaddr_t)p->p_vmspace->vm_daddr+MAXDSIZ)) 355 SCARG(&ouap, addr) = (void *)round_page((vaddr_t)p->p_vmspace->vm_daddr+MAXDSIZ); 356 357 SCARG(&ouap, len) = SCARG(uap, len); 358 SCARG(&ouap, prot) = SCARG(uap, prot); 359 SCARG(&ouap, fd) = SCARG(uap, fd); 360 SCARG(&ouap, pos) = SCARG(uap, pos); 361 362 /* 363 * Special case: if fd refers to /dev/zero, map as MAP_ANON. (XXX) 364 */ 365 fdp = p->p_fd; 366 if ((unsigned)SCARG(&ouap, fd) < fdp->fd_nfiles && /*XXX*/ 367 (fp = fdp->fd_ofiles[SCARG(&ouap, fd)]) != NULL && /*XXX*/ 368 fp->f_type == DTYPE_VNODE && /*XXX*/ 369 (vp = (struct vnode *)fp->f_data)->v_type == VCHR && /*XXX*/ 370 iszerodev(vp->v_rdev)) { /*XXX*/ 371 SCARG(&ouap, flags) |= MAP_ANON; 372 SCARG(&ouap, fd) = -1; 373 } 374 375 return (sys_mmap(p, &ouap, retval)); 376 } 377 378 int 379 ultrix_sys_setsockopt(p, v, retval) 380 struct proc *p; 381 void *v; 382 register_t *retval; 383 { 384 struct ultrix_sys_setsockopt_args *uap = v; 385 struct file *fp; 386 struct mbuf *m = NULL; 387 int error; 388 389 /* getsock() will use the descriptor for us */ 390 if ((error = getsock(p->p_fd, SCARG(uap, s), &fp)) != 0) 391 return (error); 392 #define SO_DONTLINGER (~SO_LINGER) 393 if (SCARG(uap, name) == SO_DONTLINGER) { 394 m = m_get(M_WAIT, MT_SOOPTS); 395 mtod(m, struct linger *)->l_onoff = 0; 396 m->m_len = sizeof(struct linger); 397 error = sosetopt((struct socket *)fp->f_data, SCARG(uap, level), 398 SO_LINGER, m); 399 } 400 if (SCARG(uap, level) == IPPROTO_IP) { 401 #define EMUL_IP_MULTICAST_IF 2 402 #define EMUL_IP_MULTICAST_TTL 3 403 #define EMUL_IP_MULTICAST_LOOP 4 404 #define EMUL_IP_ADD_MEMBERSHIP 5 405 #define EMUL_IP_DROP_MEMBERSHIP 6 406 static int ipoptxlat[] = { 407 IP_MULTICAST_IF, 408 IP_MULTICAST_TTL, 409 IP_MULTICAST_LOOP, 410 IP_ADD_MEMBERSHIP, 411 IP_DROP_MEMBERSHIP 412 }; 413 if (SCARG(uap, name) >= EMUL_IP_MULTICAST_IF && 414 SCARG(uap, name) <= EMUL_IP_DROP_MEMBERSHIP) { 415 SCARG(uap, name) = 416 ipoptxlat[SCARG(uap, name) - EMUL_IP_MULTICAST_IF]; 417 } 418 } 419 if (SCARG(uap, valsize) > MLEN) { 420 error = EINVAL; 421 goto out; 422 } 423 if (SCARG(uap, val)) { 424 m = m_get(M_WAIT, MT_SOOPTS); 425 error = copyin(SCARG(uap, val), mtod(m, caddr_t), 426 (u_int)SCARG(uap, valsize)); 427 if (error) { 428 (void) m_free(m); 429 goto out; 430 } 431 m->m_len = SCARG(uap, valsize); 432 } 433 error = sosetopt((struct socket *)fp->f_data, SCARG(uap, level), 434 SCARG(uap, name), m); 435 out: 436 FILE_UNUSE(fp, p); 437 return (error); 438 } 439 440 #define ULTRIX__SYS_NMLN 32 441 442 struct ultrix_utsname { 443 char sysname[ULTRIX__SYS_NMLN]; 444 char nodename[ULTRIX__SYS_NMLN]; 445 char release[ULTRIX__SYS_NMLN]; 446 char version[ULTRIX__SYS_NMLN]; 447 char machine[ULTRIX__SYS_NMLN]; 448 }; 449 450 int 451 ultrix_sys_uname(p, v, retval) 452 struct proc *p; 453 void *v; 454 register_t *retval; 455 { 456 struct ultrix_sys_uname_args *uap = v; 457 struct ultrix_utsname sut; 458 const char *cp; 459 char *dp, *ep; 460 461 memset(&sut, 0, sizeof(sut)); 462 463 strncpy(sut.sysname, ostype, sizeof(sut.sysname) - 1); 464 strncpy(sut.nodename, hostname, sizeof(sut.nodename) - 1); 465 strncpy(sut.release, osrelease, sizeof(sut.release) - 1); 466 dp = sut.version; 467 ep = &sut.version[sizeof(sut.version) - 1]; 468 for (cp = version; *cp && *cp != '('; cp++) 469 ; 470 for (cp++; *cp && *cp != ')' && dp < ep; cp++) 471 *dp++ = *cp; 472 for (; *cp && *cp != '#'; cp++) 473 ; 474 for (; *cp && *cp != ':' && dp < ep; cp++) 475 *dp++ = *cp; 476 *dp = '\0'; 477 strncpy(sut.machine, machine, sizeof(sut.machine) - 1); 478 479 return copyout((caddr_t)&sut, (caddr_t)SCARG(uap, name), 480 sizeof(struct ultrix_utsname)); 481 } 482 483 int 484 ultrix_sys_setpgrp(p, v, retval) 485 struct proc *p; 486 void *v; 487 register_t *retval; 488 { 489 struct ultrix_sys_setpgrp_args *uap = v; 490 491 /* 492 * difference to our setpgid call is to include backwards 493 * compatibility to pre-setsid() binaries. Do setsid() 494 * instead of setpgid() in those cases where the process 495 * tries to create a new session the old way. 496 */ 497 if (!SCARG(uap, pgid) && 498 (!SCARG(uap, pid) || SCARG(uap, pid) == p->p_pid)) 499 return sys_setsid(p, uap, retval); 500 else 501 return sys_setpgid(p, uap, retval); 502 } 503 504 #if defined (NFSSERVER) 505 int 506 ultrix_sys_nfssvc(p, v, retval) 507 struct proc *p; 508 void *v; 509 register_t *retval; 510 { 511 512 #if 0 /* XXX */ 513 struct ultrix_sys_nfssvc_args *uap = v; 514 struct emul *e = p->p_emul; 515 struct sys_nfssvc_args outuap; 516 struct sockaddr sa; 517 int error; 518 519 memset(&outuap, 0, sizeof outuap); 520 SCARG(&outuap, fd) = SCARG(uap, fd); 521 SCARG(&outuap, mskval) = STACKGAPBASE; 522 SCARG(&outuap, msklen) = sizeof sa; 523 SCARG(&outuap, mtchval) = outuap.mskval + sizeof sa; 524 SCARG(&outuap, mtchlen) = sizeof sa; 525 526 memset(&sa, 0, sizeof sa); 527 if (error = copyout(&sa, SCARG(&outuap, mskval), SCARG(&outuap, msklen))) 528 return (error); 529 if (error = copyout(&sa, SCARG(&outuap, mtchval), SCARG(&outuap, mtchlen))) 530 return (error); 531 532 return nfssvc(p, &outuap, retval); 533 #else 534 return (ENOSYS); 535 #endif 536 } 537 #endif /* NFSSERVER */ 538 539 struct ultrix_ustat { 540 daddr_t f_tfree; /* total free */ 541 ino_t f_tinode; /* total inodes free */ 542 char f_fname[6]; /* filsys name */ 543 char f_fpack[6]; /* filsys pack name */ 544 }; 545 546 int 547 ultrix_sys_ustat(p, v, retval) 548 struct proc *p; 549 void *v; 550 register_t *retval; 551 { 552 struct ultrix_sys_ustat_args *uap = v; 553 struct ultrix_ustat us; 554 int error; 555 556 memset(&us, 0, sizeof us); 557 558 /* 559 * XXX: should set f_tfree and f_tinode at least 560 * How do we translate dev -> fstat? (and then to ultrix_ustat) 561 */ 562 563 if ((error = copyout(&us, SCARG(uap, buf), sizeof us)) != 0) 564 return (error); 565 return 0; 566 } 567 568 int 569 ultrix_sys_quotactl(p, v, retval) 570 struct proc *p; 571 void *v; 572 register_t *retval; 573 { 574 575 #ifdef notyet 576 struct ultrix_sys_quotactl_args *uap = v; 577 #endif 578 579 return EINVAL; 580 } 581 582 int 583 ultrix_sys_vhangup(p, v, retval) 584 struct proc *p; 585 void *v; 586 register_t *retval; 587 { 588 589 return 0; 590 } 591 592 593 /* 594 * RISC Ultrix cache control syscalls 595 */ 596 #ifdef __mips 597 int 598 ultrix_sys_cacheflush(p, v, retval) 599 struct proc *p; 600 void *v; 601 register_t *retval; 602 { 603 struct ultrix_sys_cacheflush_args /* { 604 syscallarg(void *) addr; 605 syscallarg(int) nbytes; 606 syscallarg(int) flag; 607 } */ *uap = v; 608 vaddr_t va = (vaddr_t)SCARG(uap, addr); 609 int nbytes = SCARG(uap, nbytes); 610 int whichcache = SCARG(uap, whichcache); 611 612 return (mips_user_cacheflush(p, va, nbytes, whichcache)); 613 } 614 615 616 int 617 ultrix_sys_cachectl(p, v, retval) 618 struct proc *p; 619 void *v; 620 register_t *retval; 621 { 622 struct ultrix_sys_cachectl_args /* { 623 syscallarg(void *) addr; 624 syscallarg(int) nbytes; 625 syscallarg(int) cacheop; 626 } */ *uap = v; 627 vaddr_t va = (vaddr_t)SCARG(uap, addr); 628 int nbytes = SCARG(uap, nbytes); 629 int cacheop = SCARG(uap, cacheop); 630 631 return mips_user_cachectl(p, va, nbytes, cacheop); 632 } 633 634 #endif /* __mips */ 635 636 637 int 638 ultrix_sys_exportfs(p, v, retval) 639 struct proc *p; 640 void *v; 641 register_t *retval; 642 { 643 #ifdef notyet 644 struct ultrix_sys_exportfs_args *uap = v; 645 #endif 646 647 /* 648 * XXX: should perhaps translate into a mount(2) 649 * with MOUNT_EXPORT? 650 */ 651 return 0; 652 } 653 654 int 655 ultrix_sys_sigpending(p, v, retval) 656 struct proc *p; 657 void *v; 658 register_t *retval; 659 { 660 struct ultrix_sys_sigpending_args *uap = v; 661 sigset_t ss; 662 int mask; 663 664 sigpending1(p, &ss); 665 mask = ss.__bits[0]; 666 667 return (copyout((caddr_t)&mask, (caddr_t)SCARG(uap, mask), sizeof(int))); 668 } 669 670 int 671 ultrix_sys_sigreturn(p, v, retval) 672 struct proc *p; 673 void *v; 674 register_t *retval; 675 { 676 struct ultrix_sys_sigreturn_args *uap = v; 677 678 /* struct sigcontext13 is close enough to Ultrix */ 679 680 return (compat_13_sys_sigreturn(p, uap, retval)); 681 } 682 683 int 684 ultrix_sys_sigcleanup(p, v, retval) 685 struct proc *p; 686 void *v; 687 register_t *retval; 688 { 689 struct ultrix_sys_sigcleanup_args *uap = v; 690 691 /* struct sigcontext13 is close enough to Ultrix */ 692 693 return (compat_13_sys_sigreturn(p, uap, retval)); 694 } 695 696 int 697 ultrix_sys_sigsuspend(p, v, retval) 698 struct proc *p; 699 void *v; 700 register_t *retval; 701 { 702 struct ultrix_sys_sigsuspend_args *uap = v; 703 int mask = SCARG(uap, mask); 704 sigset_t ss; 705 706 ss.__bits[0] = mask; 707 ss.__bits[1] = 0; 708 ss.__bits[2] = 0; 709 ss.__bits[3] = 0; 710 711 return (sigsuspend1(p, &ss)); 712 } 713 714 #define ULTRIX_SV_ONSTACK 0x0001 /* take signal on signal stack */ 715 #define ULTRIX_SV_INTERRUPT 0x0002 /* do not restart system on signal return */ 716 #define ULTRIX_SV_OLDSIG 0x1000 /* Emulate old signal() for POSIX */ 717 718 int 719 ultrix_sys_sigvec(p, v, retval) 720 struct proc *p; 721 void *v; 722 register_t *retval; 723 { 724 struct ultrix_sys_sigvec_args *uap = v; 725 struct sigvec nsv, osv; 726 struct sigaction nsa, osa; 727 int error; 728 729 if (SCARG(uap, nsv)) { 730 error = copyin(SCARG(uap, nsv), &nsv, sizeof(nsv)); 731 if (error) 732 return (error); 733 nsa.sa_handler = nsv.sv_handler; 734 #if 0 /* documentation */ 735 /* ONSTACK is identical */ 736 nsa.sa_flags = nsv.sv_flags & ULTRIX_SV_ONSTACK; 737 if ((nsv.sv_flags & ULTRIX_SV_OLDSIG) 738 /* old signal() - always restart */ 739 || (!(nsv.sv_flags & ULTRIX_SV_INTERRUPT)) 740 /* inverted meaning (same bit) */ 741 ) 742 nsa.sa_flags |= SA_RESTART; 743 #else /* optimized - assuming ULTRIX_SV_OLDSIG=>!ULTRIX_SV_INTERRUPT */ 744 nsa.sa_flags = nsv.sv_flags & ~ULTRIX_SV_OLDSIG; 745 nsa.sa_flags ^= SA_RESTART; 746 #endif 747 native_sigset13_to_sigset(&nsv.sv_mask, &nsa.sa_mask); 748 } 749 error = sigaction1(p, SCARG(uap, signum), 750 SCARG(uap, nsv) ? &nsa : 0, SCARG(uap, osv) ? &osa : 0); 751 if (error) 752 return (error); 753 if (SCARG(uap, osv)) { 754 osv.sv_handler = osa.sa_handler; 755 osv.sv_flags = osa.sa_flags ^ SA_RESTART; 756 osv.sv_flags &= (ULTRIX_SV_ONSTACK | ULTRIX_SV_INTERRUPT); 757 native_sigset_to_sigset13(&osa.sa_mask, &osv.sv_mask); 758 error = copyout(&osv, SCARG(uap, osv), sizeof(osv)); 759 if (error) 760 return (error); 761 } 762 return (0); 763 } 764 765 int 766 ultrix_sys_shmsys(p, v, retval) 767 struct proc *p; 768 void *v; 769 register_t *retval; 770 { 771 772 #ifdef SYSVSHM 773 774 /* Ultrix SVSHM weirndess: */ 775 struct ultrix_sys_shmsys_args *uap = v; 776 struct sys_shmat_args shmat_args; 777 struct compat_14_sys_shmctl_args shmctl_args; 778 struct sys_shmdt_args shmdt_args; 779 struct sys_shmget_args shmget_args; 780 781 782 switch (SCARG(uap, shmop)) { 783 case 0: /* Ultrix shmat() */ 784 SCARG(&shmat_args, shmid) = SCARG(uap, a2); 785 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a3); 786 SCARG(&shmat_args, shmflg) = SCARG(uap, a4); 787 return (sys_shmat(p, &shmat_args, retval)); 788 789 case 1: /* Ultrix shmctl() */ 790 SCARG(&shmctl_args, shmid) = SCARG(uap, a2); 791 SCARG(&shmctl_args, cmd) = SCARG(uap, a3); 792 SCARG(&shmctl_args, buf) = (struct shmid_ds14 *)SCARG(uap, a4); 793 return (compat_14_sys_shmctl(p, &shmctl_args, retval)); 794 795 case 2: /* Ultrix shmdt() */ 796 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a2); 797 return (sys_shmdt(p, &shmdt_args, retval)); 798 799 case 3: /* Ultrix shmget() */ 800 SCARG(&shmget_args, key) = SCARG(uap, a2); 801 SCARG(&shmget_args, size) = SCARG(uap, a3); 802 SCARG(&shmget_args, shmflg) = SCARG(uap, a4) 803 & (IPC_CREAT|IPC_EXCL|IPC_NOWAIT); 804 return (sys_shmget(p, &shmget_args, retval)); 805 806 default: 807 return (EINVAL); 808 } 809 #else 810 return (EOPNOTSUPP); 811 #endif /* SYSVSHM */ 812 } 813 814 static int 815 ultrix_to_bsd_flock(ufl, fl) 816 struct ultrix_flock *ufl; 817 struct flock *fl; 818 { 819 820 fl->l_start = ufl->l_start; 821 fl->l_len = ufl->l_len; 822 fl->l_pid = ufl->l_pid; 823 fl->l_whence = ufl->l_whence; 824 825 switch (ufl->l_type) { 826 case ULTRIX_F_RDLCK: 827 fl->l_type = F_RDLCK; 828 break; 829 case ULTRIX_F_WRLCK: 830 fl->l_type = F_WRLCK; 831 break; 832 case ULTRIX_F_UNLCK: 833 fl->l_type = F_UNLCK; 834 break; 835 default: 836 return (EINVAL); 837 } 838 839 return (0); 840 } 841 842 static void 843 bsd_to_ultrix_flock(fl, ufl) 844 struct flock *fl; 845 struct ultrix_flock *ufl; 846 { 847 848 ufl->l_start = fl->l_start; 849 ufl->l_len = fl->l_len; 850 ufl->l_pid = fl->l_pid; 851 ufl->l_whence = fl->l_whence; 852 853 switch (fl->l_type) { 854 case F_RDLCK: 855 ufl->l_type = ULTRIX_F_RDLCK; 856 break; 857 case F_WRLCK: 858 ufl->l_type = ULTRIX_F_WRLCK; 859 break; 860 case F_UNLCK: 861 ufl->l_type = ULTRIX_F_UNLCK; 862 break; 863 } 864 } 865 866 int 867 ultrix_sys_fcntl(p, v, retval) 868 struct proc *p; 869 void *v; 870 register_t *retval; 871 { 872 struct ultrix_sys_fcntl_args *uap = v; 873 int error; 874 struct ultrix_flock ufl; 875 struct flock fl, *flp; 876 caddr_t sg; 877 struct sys_fcntl_args *args, fca; 878 879 switch (SCARG(uap, cmd)) { 880 case F_GETLK: 881 case F_SETLK: 882 case F_SETLKW: 883 error = copyin(SCARG(uap, arg), &ufl, sizeof(ufl)); 884 if (error) 885 return (error); 886 error = ultrix_to_bsd_flock(&ufl, &fl); 887 if (error) 888 return (error); 889 sg = stackgap_init(p->p_emul); 890 flp = (struct flock *)stackgap_alloc(&sg, sizeof(*flp)); 891 error = copyout(&fl, flp, sizeof(*flp)); 892 if (error) 893 return (error); 894 895 SCARG(&fca, fd) = SCARG(uap, fd); 896 SCARG(&fca, cmd) = SCARG(uap, cmd); 897 SCARG(&fca, arg) = flp; 898 args = &fca; 899 break; 900 default: 901 args = v; 902 break; 903 } 904 905 error = sys_fcntl(p, args, retval); 906 if (error) 907 return (error); 908 909 switch (SCARG(uap, cmd)) { 910 case F_GETLK: 911 error = copyin(flp, &fl, sizeof(fl)); 912 if (error) 913 return (error); 914 bsd_to_ultrix_flock(&fl, &ufl); 915 error = copyout(&ufl, SCARG(uap, arg), sizeof(ufl)); 916 break; 917 } 918 919 return (error); 920 } 921
Indexes created Tue Sep 23 13:09:54 GMT 2025