ultrix_misc.c revision 1.95
1 /* $NetBSD: ultrix_misc.c,v 1.95 2004/10/27 19:29:57 david 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 1.95 2004/10/27 19:29:57 david 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/sa.h> 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/socketvar.h> /* sosetopt() */ 140 141 #include <compat/ultrix/ultrix_flock.h> 142 143 #ifdef __mips 144 #include <mips/cachectl.h> 145 #endif 146 147 static int ultrix_to_bsd_flock(struct ultrix_flock *, struct flock *); 148 static void bsd_to_ultrix_flock(struct flock *, struct ultrix_flock *); 149 150 extern struct sysent ultrix_sysent[]; 151 extern const char * const ultrix_syscallnames[]; 152 extern char ultrix_sigcode[], ultrix_esigcode[]; 153 #ifdef __HAVE_SYSCALL_INTERN 154 void syscall_intern(struct proc *); 155 #else 156 void syscall(void); 157 #endif 158 159 struct uvm_object *emul_ultrix_object; 160 161 const struct emul emul_ultrix = { 162 "ultrix", 163 "/emul/ultrix", 164 #ifndef __HAVE_MINIMAL_EMUL 165 0, 166 NULL, 167 ULTRIX_SYS_syscall, 168 ULTRIX_SYS_NSYSENT, 169 #endif 170 ultrix_sysent, 171 ultrix_syscallnames, 172 sendsig, 173 trapsignal, 174 NULL, 175 ultrix_sigcode, 176 ultrix_esigcode, 177 &emul_ultrix_object, 178 setregs, 179 NULL, 180 NULL, 181 NULL, 182 NULL, 183 NULL, 184 #ifdef __HAVE_SYSCALL_INTERN 185 syscall_intern, 186 #else 187 syscall, 188 #endif 189 NULL, 190 NULL, 191 }; 192 193 #define GSI_PROG_ENV 1 194 195 int 196 ultrix_sys_getsysinfo(struct lwp *l, void *v, register_t *retval) 197 { 198 struct ultrix_sys_getsysinfo_args *uap = v; 199 static short progenv = 0; 200 201 switch (SCARG(uap, op)) { 202 /* operations implemented: */ 203 case GSI_PROG_ENV: 204 if (SCARG(uap, nbytes) < sizeof(short)) 205 return EINVAL; 206 *retval = 1; 207 return (copyout(&progenv, SCARG(uap, buffer), sizeof(short))); 208 default: 209 *retval = 0; /* info unavail */ 210 return 0; 211 } 212 } 213 214 int 215 ultrix_sys_setsysinfo(struct lwp *l, void *v, register_t *retval) 216 { 217 218 #ifdef notyet 219 struct ultrix_sys_setsysinfo_args *uap = v; 220 #endif 221 222 *retval = 0; 223 return 0; 224 } 225 226 int 227 ultrix_sys_waitpid(struct lwp *l, void *v, register_t *retval) 228 { 229 struct ultrix_sys_waitpid_args *uap = v; 230 struct sys_wait4_args ua; 231 232 SCARG(&ua, pid) = SCARG(uap, pid); 233 SCARG(&ua, status) = SCARG(uap, status); 234 SCARG(&ua, options) = SCARG(uap, options); 235 SCARG(&ua, rusage) = 0; 236 237 return (sys_wait4(l, &ua, retval)); 238 } 239 240 int 241 ultrix_sys_wait3(struct lwp *l, void *v, register_t *retval) 242 { 243 struct ultrix_sys_wait3_args *uap = v; 244 struct sys_wait4_args ua; 245 246 SCARG(&ua, pid) = -1; 247 SCARG(&ua, status) = SCARG(uap, status); 248 SCARG(&ua, options) = SCARG(uap, options); 249 SCARG(&ua, rusage) = SCARG(uap, rusage); 250 251 return (sys_wait4(l, &ua, retval)); 252 } 253 254 /* 255 * Ultrix binaries pass in FD_MAX as the first arg to select(). 256 * On Ultrix, FD_MAX is 4096, which is more than the NetBSD sys_select() 257 * can handle. 258 * Since we can't have more than the (native) FD_MAX descriptors open, 259 * limit nfds to at most FD_MAX. 260 */ 261 int 262 ultrix_sys_select(struct lwp *l, void *v, register_t *retval) 263 { 264 struct sys_select_args *uap = v; 265 struct timeval atv; 266 int error; 267 268 /* Limit number of FDs selected on to the native maximum */ 269 270 if (SCARG(uap, nd) > FD_SETSIZE) 271 SCARG(uap, nd) = FD_SETSIZE; 272 273 /* Check for negative timeval */ 274 if (SCARG(uap, tv)) { 275 error = copyin((caddr_t)SCARG(uap, tv), (caddr_t)&atv, 276 sizeof(atv)); 277 if (error) 278 goto done; 279 #ifdef DEBUG 280 /* Ultrix clients sometimes give negative timeouts? */ 281 if (atv.tv_sec < 0 || atv.tv_usec < 0) 282 printf("ultrix select( %ld, %ld): negative timeout\n", 283 atv.tv_sec, atv.tv_usec); 284 #endif 285 286 } 287 error = sys_select(l, (void*) uap, retval); 288 if (error == EINVAL) 289 printf("ultrix select: bad args?\n"); 290 291 done: 292 return error; 293 } 294 295 #if defined(NFS) 296 int 297 async_daemon(struct lwp *l, void *v, register_t *retval) 298 { 299 struct sys_nfssvc_args ouap; 300 301 SCARG(&ouap, flag) = NFSSVC_BIOD; 302 SCARG(&ouap, argp) = NULL; 303 304 return (sys_nfssvc(l, &ouap, retval)); 305 } 306 #endif /* NFS */ 307 308 309 #define SUN__MAP_NEW 0x80000000 /* if not, old mmap & cannot handle */ 310 311 int 312 ultrix_sys_mmap(struct lwp *l, void *v, register_t *retval) 313 { 314 struct ultrix_sys_mmap_args *uap = v; 315 struct sys_mmap_args ouap; 316 317 /* 318 * Verify the arguments. 319 */ 320 if (SCARG(uap, prot) & ~(PROT_READ|PROT_WRITE|PROT_EXEC)) 321 return (EINVAL); /* XXX still needed? */ 322 323 if ((SCARG(uap, flags) & SUN__MAP_NEW) == 0) 324 return (EINVAL); 325 326 SCARG(&ouap, flags) = SCARG(uap, flags) & ~SUN__MAP_NEW; 327 SCARG(&ouap, addr) = SCARG(uap, addr); 328 SCARG(&ouap, len) = SCARG(uap, len); 329 SCARG(&ouap, prot) = SCARG(uap, prot); 330 SCARG(&ouap, fd) = SCARG(uap, fd); 331 SCARG(&ouap, pos) = SCARG(uap, pos); 332 333 return (sys_mmap(l, &ouap, retval)); 334 } 335 336 int 337 ultrix_sys_setsockopt(struct lwp *l, void *v, register_t *retval) 338 { 339 struct ultrix_sys_setsockopt_args *uap = v; 340 struct proc *p = l->l_proc; 341 struct file *fp; 342 struct mbuf *m = NULL; 343 int error; 344 345 /* getsock() will use the descriptor for us */ 346 if ((error = getsock(p->p_fd, SCARG(uap, s), &fp)) != 0) 347 return (error); 348 #define SO_DONTLINGER (~SO_LINGER) 349 if (SCARG(uap, name) == SO_DONTLINGER) { 350 m = m_get(M_WAIT, MT_SOOPTS); 351 mtod(m, struct linger *)->l_onoff = 0; 352 m->m_len = sizeof(struct linger); 353 error = sosetopt((struct socket *)fp->f_data, SCARG(uap, level), 354 SO_LINGER, m); 355 } 356 if (SCARG(uap, level) == IPPROTO_IP) { 357 #define EMUL_IP_MULTICAST_IF 2 358 #define EMUL_IP_MULTICAST_TTL 3 359 #define EMUL_IP_MULTICAST_LOOP 4 360 #define EMUL_IP_ADD_MEMBERSHIP 5 361 #define EMUL_IP_DROP_MEMBERSHIP 6 362 static const int ipoptxlat[] = { 363 IP_MULTICAST_IF, 364 IP_MULTICAST_TTL, 365 IP_MULTICAST_LOOP, 366 IP_ADD_MEMBERSHIP, 367 IP_DROP_MEMBERSHIP 368 }; 369 if (SCARG(uap, name) >= EMUL_IP_MULTICAST_IF && 370 SCARG(uap, name) <= EMUL_IP_DROP_MEMBERSHIP) { 371 SCARG(uap, name) = 372 ipoptxlat[SCARG(uap, name) - EMUL_IP_MULTICAST_IF]; 373 } 374 } 375 if (SCARG(uap, valsize) > MLEN) { 376 error = EINVAL; 377 goto out; 378 } 379 if (SCARG(uap, val)) { 380 m = m_get(M_WAIT, MT_SOOPTS); 381 error = copyin(SCARG(uap, val), mtod(m, caddr_t), 382 (u_int)SCARG(uap, valsize)); 383 if (error) { 384 (void) m_free(m); 385 goto out; 386 } 387 m->m_len = SCARG(uap, valsize); 388 } 389 error = sosetopt((struct socket *)fp->f_data, SCARG(uap, level), 390 SCARG(uap, name), m); 391 out: 392 FILE_UNUSE(fp, p); 393 return (error); 394 } 395 396 #define ULTRIX__SYS_NMLN 32 397 398 struct ultrix_utsname { 399 char sysname[ULTRIX__SYS_NMLN]; 400 char nodename[ULTRIX__SYS_NMLN]; 401 char release[ULTRIX__SYS_NMLN]; 402 char version[ULTRIX__SYS_NMLN]; 403 char machine[ULTRIX__SYS_NMLN]; 404 }; 405 406 int 407 ultrix_sys_uname(struct lwp *l, void *v, register_t *retval) 408 { 409 struct ultrix_sys_uname_args *uap = v; 410 struct ultrix_utsname sut; 411 const char *cp; 412 char *dp, *ep; 413 414 memset(&sut, 0, sizeof(sut)); 415 416 strncpy(sut.sysname, ostype, sizeof(sut.sysname) - 1); 417 strncpy(sut.nodename, hostname, sizeof(sut.nodename) - 1); 418 strncpy(sut.release, osrelease, sizeof(sut.release) - 1); 419 dp = sut.version; 420 ep = &sut.version[sizeof(sut.version) - 1]; 421 for (cp = version; *cp && *cp != '('; cp++) 422 ; 423 for (cp++; *cp && *cp != ')' && dp < ep; cp++) 424 *dp++ = *cp; 425 for (; *cp && *cp != '#'; cp++) 426 ; 427 for (; *cp && *cp != ':' && dp < ep; cp++) 428 *dp++ = *cp; 429 *dp = '\0'; 430 strncpy(sut.machine, machine, sizeof(sut.machine) - 1); 431 432 return copyout((caddr_t)&sut, (caddr_t)SCARG(uap, name), 433 sizeof(struct ultrix_utsname)); 434 } 435 436 int 437 ultrix_sys_setpgrp(struct lwp *l, void *v, register_t *retval) 438 { 439 struct ultrix_sys_setpgrp_args *uap = v; 440 struct proc *p = l->l_proc; 441 442 /* 443 * difference to our setpgid call is to include backwards 444 * compatibility to pre-setsid() binaries. Do setsid() 445 * instead of setpgid() in those cases where the process 446 * tries to create a new session the old way. 447 */ 448 if (!SCARG(uap, pgid) && 449 (!SCARG(uap, pid) || SCARG(uap, pid) == p->p_pid)) 450 return sys_setsid(l, uap, retval); 451 else 452 return sys_setpgid(l, uap, retval); 453 } 454 455 #if defined (NFSSERVER) 456 int 457 ultrix_sys_nfssvc(struct lwp *l, void *v, register_t *retval) 458 { 459 460 #if 0 /* XXX */ 461 struct ultrix_sys_nfssvc_args *uap = v; 462 struct emul *e = p->p_emul; 463 struct sys_nfssvc_args outuap; 464 struct sockaddr sa; 465 int error; 466 caddr_t sg = stackgap_init(p, 0); 467 468 memset(&outuap, 0, sizeof outuap); 469 SCARG(&outuap, fd) = SCARG(uap, fd); 470 SCARG(&outuap, mskval) = stackgap_alloc(p, &sg, sizeof sa); 471 SCARG(&outuap, msklen) = sizeof sa; 472 SCARG(&outuap, mtchval) = stackgap_alloc(p, &sg, sizeof sa); 473 SCARG(&outuap, mtchlen) = sizeof sa; 474 475 memset(&sa, 0, sizeof sa); 476 if (error = copyout(&sa, SCARG(&outuap, mskval), SCARG(&outuap, msklen))) 477 return (error); 478 if (error = copyout(&sa, SCARG(&outuap, mtchval), SCARG(&outuap, mtchlen))) 479 return (error); 480 481 return nfssvc(l, &outuap, retval); 482 #else 483 return (ENOSYS); 484 #endif 485 } 486 #endif /* NFSSERVER */ 487 488 struct ultrix_ustat { 489 daddr_t f_tfree; /* total free */ 490 ino_t f_tinode; /* total inodes free */ 491 char f_fname[6]; /* filsys name */ 492 char f_fpack[6]; /* filsys pack name */ 493 }; 494 495 int 496 ultrix_sys_ustat(struct lwp *l, void *v, register_t *retval) 497 { 498 struct ultrix_sys_ustat_args *uap = v; 499 struct ultrix_ustat us; 500 int error; 501 502 memset(&us, 0, sizeof us); 503 504 /* 505 * XXX: should set f_tfree and f_tinode at least 506 * How do we translate dev -> fstat? (and then to ultrix_ustat) 507 */ 508 509 if ((error = copyout(&us, SCARG(uap, buf), sizeof us)) != 0) 510 return (error); 511 return 0; 512 } 513 514 int 515 ultrix_sys_quotactl(struct lwp *l, void *v, register_t *retval) 516 { 517 518 #ifdef notyet 519 struct ultrix_sys_quotactl_args *uap = v; 520 #endif 521 522 return EINVAL; 523 } 524 525 int 526 ultrix_sys_vhangup(struct lwp *l, void *v, register_t *retval) 527 { 528 529 return 0; 530 } 531 532 533 /* 534 * RISC Ultrix cache control syscalls 535 */ 536 #ifdef __mips 537 int 538 ultrix_sys_cacheflush(struct lwp *l, void *v, register_t *retval) 539 { 540 struct ultrix_sys_cacheflush_args /* { 541 syscallarg(void *) addr; 542 syscallarg(unsigned) nbytes; 543 syscallarg(int) flag; 544 } */ *uap = v; 545 struct proc *p = l->l_proc; 546 vaddr_t va = (vaddr_t)SCARG(uap, addr); 547 int nbytes = SCARG(uap, nbytes); 548 int whichcache = SCARG(uap, whichcache); 549 550 return (mips_user_cacheflush(p, va, nbytes, whichcache)); 551 } 552 553 554 int 555 ultrix_sys_cachectl(struct lwp *l, void *v, register_t *retval) 556 { 557 struct ultrix_sys_cachectl_args /* { 558 syscallarg(void *) addr; 559 syscallarg(int) nbytes; 560 syscallarg(int) cacheop; 561 } */ *uap = v; 562 struct proc *p = l->l_proc; 563 vaddr_t va = (vaddr_t)SCARG(uap, addr); 564 int nbytes = SCARG(uap, nbytes); 565 int cacheop = SCARG(uap, cacheop); 566 567 return mips_user_cachectl(p, va, nbytes, cacheop); 568 } 569 570 #endif /* __mips */ 571 572 573 int 574 ultrix_sys_exportfs(struct lwp *l, void *v, register_t *retval) 575 { 576 #ifdef notyet 577 struct ultrix_sys_exportfs_args *uap = v; 578 #endif 579 580 /* 581 * XXX: should perhaps translate into a mount(2) 582 * with MOUNT_EXPORT? 583 */ 584 return 0; 585 } 586 587 int 588 ultrix_sys_sigpending(struct lwp *l, void *v, register_t *retval) 589 { 590 struct ultrix_sys_sigpending_args *uap = v; 591 sigset_t ss; 592 int mask; 593 594 sigpending1(l->l_proc, &ss); 595 mask = ss.__bits[0]; 596 597 return (copyout((caddr_t)&mask, (caddr_t)SCARG(uap, mask), sizeof(int))); 598 } 599 600 int 601 ultrix_sys_sigreturn(struct lwp *l, void *v, register_t *retval) 602 { 603 struct ultrix_sys_sigreturn_args *uap = v; 604 605 /* struct sigcontext13 is close enough to Ultrix */ 606 607 return (compat_13_sys_sigreturn(l, uap, retval)); 608 } 609 610 int 611 ultrix_sys_sigcleanup(struct lwp *l, void *v, register_t *retval) 612 { 613 struct ultrix_sys_sigcleanup_args *uap = v; 614 615 /* struct sigcontext13 is close enough to Ultrix */ 616 617 return (compat_13_sys_sigreturn(l, uap, retval)); 618 } 619 620 int 621 ultrix_sys_sigsuspend(struct lwp *l, void *v, register_t *retval) 622 { 623 struct ultrix_sys_sigsuspend_args *uap = v; 624 int mask = SCARG(uap, mask); 625 sigset_t ss; 626 627 ss.__bits[0] = mask; 628 ss.__bits[1] = 0; 629 ss.__bits[2] = 0; 630 ss.__bits[3] = 0; 631 632 return (sigsuspend1(l->l_proc, &ss)); 633 } 634 635 #define ULTRIX_SV_ONSTACK 0x0001 /* take signal on signal stack */ 636 #define ULTRIX_SV_INTERRUPT 0x0002 /* do not restart system on signal return */ 637 #define ULTRIX_SV_OLDSIG 0x1000 /* Emulate old signal() for POSIX */ 638 639 int 640 ultrix_sys_sigvec(struct lwp *l, void *v, register_t *retval) 641 { 642 struct ultrix_sys_sigvec_args *uap = v; 643 struct sigvec nsv, osv; 644 struct sigaction nsa, osa; 645 int error; 646 647 if (SCARG(uap, nsv)) { 648 error = copyin(SCARG(uap, nsv), &nsv, sizeof(nsv)); 649 if (error) 650 return (error); 651 nsa.sa_handler = nsv.sv_handler; 652 #if 0 /* documentation */ 653 /* ONSTACK is identical */ 654 nsa.sa_flags = nsv.sv_flags & ULTRIX_SV_ONSTACK; 655 if ((nsv.sv_flags & ULTRIX_SV_OLDSIG) 656 /* old signal() - always restart */ 657 || (!(nsv.sv_flags & ULTRIX_SV_INTERRUPT)) 658 /* inverted meaning (same bit) */ 659 ) 660 nsa.sa_flags |= SA_RESTART; 661 #else /* optimized - assuming ULTRIX_SV_OLDSIG=>!ULTRIX_SV_INTERRUPT */ 662 nsa.sa_flags = nsv.sv_flags & ~ULTRIX_SV_OLDSIG; 663 nsa.sa_flags ^= SA_RESTART; 664 #endif 665 native_sigset13_to_sigset(&nsv.sv_mask, &nsa.sa_mask); 666 } 667 error = sigaction1(l->l_proc, SCARG(uap, signum), 668 SCARG(uap, nsv) ? &nsa : 0, SCARG(uap, osv) ? &osa : 0, 669 NULL, 0); 670 if (error) 671 return (error); 672 if (SCARG(uap, osv)) { 673 osv.sv_handler = osa.sa_handler; 674 osv.sv_flags = osa.sa_flags ^ SA_RESTART; 675 osv.sv_flags &= (ULTRIX_SV_ONSTACK | ULTRIX_SV_INTERRUPT); 676 native_sigset_to_sigset13(&osa.sa_mask, &osv.sv_mask); 677 error = copyout(&osv, SCARG(uap, osv), sizeof(osv)); 678 if (error) 679 return (error); 680 } 681 return (0); 682 } 683 684 int 685 ultrix_sys_shmsys(struct lwp *l, void *v, register_t *retval) 686 { 687 688 #ifdef SYSVSHM 689 /* Ultrix SVSHM weirndess: */ 690 struct ultrix_sys_shmsys_args *uap = v; 691 struct sys_shmat_args shmat_args; 692 struct compat_14_sys_shmctl_args shmctl_args; 693 struct sys_shmdt_args shmdt_args; 694 struct sys_shmget_args shmget_args; 695 696 697 switch (SCARG(uap, shmop)) { 698 case 0: /* Ultrix shmat() */ 699 SCARG(&shmat_args, shmid) = SCARG(uap, a2); 700 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a3); 701 SCARG(&shmat_args, shmflg) = SCARG(uap, a4); 702 return (sys_shmat(l, &shmat_args, retval)); 703 704 case 1: /* Ultrix shmctl() */ 705 SCARG(&shmctl_args, shmid) = SCARG(uap, a2); 706 SCARG(&shmctl_args, cmd) = SCARG(uap, a3); 707 SCARG(&shmctl_args, buf) = (struct shmid_ds14 *)SCARG(uap, a4); 708 return (compat_14_sys_shmctl(l, &shmctl_args, retval)); 709 710 case 2: /* Ultrix shmdt() */ 711 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a2); 712 return (sys_shmdt(l, &shmdt_args, retval)); 713 714 case 3: /* Ultrix shmget() */ 715 SCARG(&shmget_args, key) = SCARG(uap, a2); 716 SCARG(&shmget_args, size) = SCARG(uap, a3); 717 SCARG(&shmget_args, shmflg) = SCARG(uap, a4) 718 & (IPC_CREAT|IPC_EXCL|IPC_NOWAIT); 719 return (sys_shmget(l, &shmget_args, retval)); 720 721 default: 722 return (EINVAL); 723 } 724 #else 725 return (EOPNOTSUPP); 726 #endif /* SYSVSHM */ 727 } 728 729 static int 730 ultrix_to_bsd_flock(struct ultrix_flock *ufl, struct flock *fl) 731 { 732 733 fl->l_start = ufl->l_start; 734 fl->l_len = ufl->l_len; 735 fl->l_pid = ufl->l_pid; 736 fl->l_whence = ufl->l_whence; 737 738 switch (ufl->l_type) { 739 case ULTRIX_F_RDLCK: 740 fl->l_type = F_RDLCK; 741 break; 742 case ULTRIX_F_WRLCK: 743 fl->l_type = F_WRLCK; 744 break; 745 case ULTRIX_F_UNLCK: 746 fl->l_type = F_UNLCK; 747 break; 748 default: 749 return (EINVAL); 750 } 751 752 return (0); 753 } 754 755 static void 756 bsd_to_ultrix_flock(struct flock *fl, struct ultrix_flock *ufl) 757 { 758 759 ufl->l_start = fl->l_start; 760 ufl->l_len = fl->l_len; 761 ufl->l_pid = fl->l_pid; 762 ufl->l_whence = fl->l_whence; 763 764 switch (fl->l_type) { 765 case F_RDLCK: 766 ufl->l_type = ULTRIX_F_RDLCK; 767 break; 768 case F_WRLCK: 769 ufl->l_type = ULTRIX_F_WRLCK; 770 break; 771 case F_UNLCK: 772 ufl->l_type = ULTRIX_F_UNLCK; 773 break; 774 } 775 } 776 777 int 778 ultrix_sys_fcntl(struct lwp *l, void *v, register_t *retval) 779 { 780 struct ultrix_sys_fcntl_args *uap = v; 781 struct proc *p = l->l_proc; 782 int error; 783 struct ultrix_flock ufl; 784 struct flock fl, *flp = NULL; /* XXX gcc */ 785 caddr_t sg; 786 struct sys_fcntl_args *args, fca; 787 788 switch (SCARG(uap, cmd)) { 789 case F_GETLK: 790 case F_SETLK: 791 case F_SETLKW: 792 error = copyin(SCARG(uap, arg), &ufl, sizeof(ufl)); 793 if (error) 794 return (error); 795 error = ultrix_to_bsd_flock(&ufl, &fl); 796 if (error) 797 return (error); 798 sg = stackgap_init(p, 0); 799 flp = (struct flock *)stackgap_alloc(p, &sg, sizeof(*flp)); 800 error = copyout(&fl, flp, sizeof(*flp)); 801 if (error) 802 return (error); 803 804 SCARG(&fca, fd) = SCARG(uap, fd); 805 SCARG(&fca, cmd) = SCARG(uap, cmd); 806 SCARG(&fca, arg) = flp; 807 args = &fca; 808 break; 809 default: 810 args = v; 811 break; 812 } 813 814 error = sys_fcntl(l, args, retval); 815 if (error) 816 return (error); 817 818 switch (SCARG(uap, cmd)) { 819 case F_GETLK: 820 error = copyin(flp, &fl, sizeof(fl)); 821 if (error) 822 return (error); 823 bsd_to_ultrix_flock(&fl, &ufl); 824 error = copyout(&ufl, SCARG(uap, arg), sizeof(ufl)); 825 break; 826 } 827 828 return (error); 829 } 830
Indexes created Mon Sep 22 13:09:51 GMT 2025