ultrix_misc.c revision 1.121
1 /* $NetBSD: ultrix_misc.c,v 1.121 2010/07/07 01:30:37 chs 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 1.121 2010/07/07 01:30:37 chs Exp $"); 80 81 #if defined(_KERNEL_OPT) 82 #include "opt_sysv.h" 83 #endif 84 85 #include <sys/cdefs.h> /* RCS ID & Copyright macro defns */ 86 87 /* 88 * Ultrix compatibility module. 89 * 90 * Ultrix system calls that are implemented differently in BSD are 91 * handled here. 92 */ 93 94 #include <sys/param.h> 95 #include <sys/systm.h> 96 #include <sys/namei.h> 97 #include <sys/dirent.h> 98 #include <sys/proc.h> 99 #include <sys/file.h> 100 #include <sys/filedesc.h> 101 #include <sys/kernel.h> 102 #include <sys/exec.h> 103 #include <sys/malloc.h> 104 #include <sys/mbuf.h> 105 #include <sys/mman.h> 106 #include <sys/mount.h> 107 #include <sys/resource.h> 108 #include <sys/resourcevar.h> 109 #include <sys/signal.h> 110 #include <sys/signalvar.h> 111 #include <sys/socket.h> 112 #include <sys/vnode.h> 113 #include <sys/uio.h> 114 #include <sys/wait.h> 115 #include <sys/utsname.h> 116 #include <sys/unistd.h> 117 #include <sys/ipc.h> 118 119 #include <sys/syscallargs.h> 120 121 #include <uvm/uvm_extern.h> 122 123 #include <compat/ultrix/ultrix_syscall.h> 124 #include <compat/ultrix/ultrix_syscallargs.h> 125 #include <compat/common/compat_util.h> 126 #include <compat/sys/time.h> 127 128 #include <netinet/in.h> 129 130 #include <miscfs/specfs/specdev.h> 131 132 #include <nfs/rpcv2.h> 133 #include <nfs/nfsproto.h> 134 #include <nfs/nfs.h> 135 136 #include <sys/socketvar.h> /* sosetopt() */ 137 138 #include <compat/ultrix/ultrix_flock.h> 139 140 #include <compat/sys/signal.h> 141 #include <compat/sys/signalvar.h> 142 143 #ifdef __mips 144 #include <mips/cachectl.h> 145 #include <mips/frame.h> 146 #endif 147 148 static int ultrix_to_bsd_flock(struct ultrix_flock *, struct flock *); 149 static void bsd_to_ultrix_flock(struct flock *, struct ultrix_flock *); 150 151 extern struct sysent ultrix_sysent[]; 152 extern const char * const ultrix_syscallnames[]; 153 extern char ultrix_sigcode[], ultrix_esigcode[]; 154 155 struct uvm_object *emul_ultrix_object; 156 157 #ifndef __HAVE_SYSCALL_INTERN 158 void syscall(void); 159 #endif 160 161 struct emul emul_ultrix = { 162 .e_name = "ultrix", 163 .e_path = "/emul/ultrix", 164 #ifndef __HAVE_MINIMAL_EMUL 165 .e_flags = 0, 166 .e_errno = NULL, 167 .e_nosys = ULTRIX_SYS_syscall, 168 .e_nsysent = ULTRIX_SYS_NSYSENT, 169 #endif 170 .e_sysent = ultrix_sysent, 171 #ifdef SYSCALL_DEBUG 172 .e_syscallnames = ultrix_syscallnames, 173 #else 174 .e_syscallnames = NULL, 175 #endif 176 #ifdef __mips 177 .e_sendsig = sendsig_sigcontext, 178 #else /* vax */ 179 .e_sendsig = sendsig, 180 #endif 181 .e_trapsignal = trapsignal, 182 .e_tracesig = NULL, 183 .e_sigcode = ultrix_sigcode, 184 .e_esigcode = ultrix_esigcode, 185 .e_sigobject = &emul_ultrix_object, 186 .e_setregs = setregs, 187 .e_proc_exec = NULL, 188 .e_proc_fork = NULL, 189 .e_proc_exit = NULL, 190 .e_lwp_fork = NULL, 191 .e_lwp_exit = NULL, 192 #ifdef __HAVE_SYSCALL_INTERN 193 .e_syscall_intern = syscall_intern, 194 #else 195 .e_syscall_intern = syscall, 196 #endif 197 .e_sysctlovly = NULL, 198 .e_fault = NULL, 199 .e_vm_default_addr = uvm_default_mapaddr, 200 .e_usertrap = NULL, 201 .e_sa = NULL, 202 .e_ucsize = 0, 203 .e_startlwp = NULL 204 }; 205 206 #define GSI_PROG_ENV 1 207 208 int 209 ultrix_sys_getsysinfo(struct lwp *l, const struct ultrix_sys_getsysinfo_args *uap, register_t *retval) 210 { 211 static short progenv = 0; 212 213 switch (SCARG(uap, op)) { 214 /* operations implemented: */ 215 case GSI_PROG_ENV: 216 if (SCARG(uap, nbytes) < sizeof(short)) 217 return EINVAL; 218 *retval = 1; 219 return copyout(&progenv, SCARG(uap, buffer), sizeof(progenv)); 220 default: 221 *retval = 0; /* info unavail */ 222 return 0; 223 } 224 } 225 226 int 227 ultrix_sys_setsysinfo(struct lwp *l, const struct ultrix_sys_setsysinfo_args *uap, register_t *retval) 228 { 229 230 *retval = 0; 231 return 0; 232 } 233 234 int 235 ultrix_sys_waitpid(struct lwp *l, const struct ultrix_sys_waitpid_args *uap, register_t *retval) 236 { 237 struct compat_50_sys_wait4_args ap; 238 239 SCARG(&ap, pid) = SCARG(uap, pid); 240 SCARG(&ap, status) = SCARG(uap, status); 241 SCARG(&ap, options) = SCARG(uap, options); 242 SCARG(&ap, rusage) = 0; 243 244 return compat_50_sys_wait4(l, &ap, retval); 245 } 246 247 int 248 ultrix_sys_wait3(struct lwp *l, const struct ultrix_sys_wait3_args *uap, register_t *retval) 249 { 250 struct compat_50_sys_wait4_args ap; 251 252 SCARG(&ap, pid) = -1; 253 SCARG(&ap, status) = SCARG(uap, status); 254 SCARG(&ap, options) = SCARG(uap, options); 255 SCARG(&ap, rusage) = SCARG(uap, rusage); 256 257 return compat_50_sys_wait4(l, &ap, retval); 258 } 259 260 /* 261 * Ultrix binaries pass in FD_MAX as the first arg to select(). 262 * On Ultrix, FD_MAX is 4096, which is more than the NetBSD sys_select() 263 * can handle. 264 * Since we can't have more than the (native) FD_MAX descriptors open, 265 * limit nfds to at most FD_MAX. 266 */ 267 int 268 ultrix_sys_select(struct lwp *l, const struct ultrix_sys_select_args *uap, register_t *retval) 269 { 270 struct timeval50 atv; 271 int error; 272 struct compat_50_sys_select_args ap; 273 274 /* Limit number of FDs selected on to the native maximum */ 275 276 if (SCARG(uap, nd) > FD_SETSIZE) 277 SCARG(&ap, nd) = FD_SETSIZE; 278 else 279 SCARG(&ap, nd) = SCARG(uap, nd); 280 281 SCARG(&ap, in) = SCARG(uap, in); 282 SCARG(&ap, ou) = SCARG(uap, ou); 283 SCARG(&ap, ex) = SCARG(uap, ex); 284 SCARG(&ap, tv) = SCARG(uap, tv); 285 /* Check for negative timeval */ 286 if (SCARG(&ap, tv)) { 287 error = copyin(SCARG(uap, tv), &atv, sizeof(atv)); 288 if (error) 289 goto done; 290 #ifdef DEBUG 291 /* Ultrix clients sometimes give negative timeouts? */ 292 if (atv.tv_sec < 0 || atv.tv_usec < 0) 293 printf("ultrix select( %ld, %ld): negative timeout\n", 294 atv.tv_sec, atv.tv_usec); 295 #endif 296 297 } 298 error = compat_50_sys_select(l, &ap, retval); 299 if (error == EINVAL) 300 printf("ultrix select: bad args?\n"); 301 302 done: 303 return error; 304 } 305 306 307 #define SUN__MAP_NEW 0x80000000 /* if not, old mmap & cannot handle */ 308 309 int 310 ultrix_sys_mmap(struct lwp *l, const struct ultrix_sys_mmap_args *uap, register_t *retval) 311 { 312 struct sys_mmap_args ouap; 313 314 /* 315 * Verify the arguments. 316 */ 317 if (SCARG(uap, prot) & ~(PROT_READ|PROT_WRITE|PROT_EXEC)) 318 return EINVAL; /* XXX still needed? */ 319 320 if ((SCARG(uap, flags) & SUN__MAP_NEW) == 0) 321 return EINVAL; 322 323 SCARG(&ouap, flags) = SCARG(uap, flags) & ~SUN__MAP_NEW; 324 SCARG(&ouap, addr) = SCARG(uap, addr); 325 SCARG(&ouap, len) = SCARG(uap, len); 326 SCARG(&ouap, prot) = SCARG(uap, prot); 327 SCARG(&ouap, fd) = SCARG(uap, fd); 328 SCARG(&ouap, pos) = SCARG(uap, pos); 329 330 return sys_mmap(l, &ouap, retval); 331 } 332 333 int 334 ultrix_sys_setsockopt(struct lwp *l, const struct ultrix_sys_setsockopt_args *uap, register_t *retval) 335 { 336 struct sockopt sopt; 337 struct socket *so; 338 int error; 339 struct sys_setsockopt_args ap; 340 341 SCARG(&ap, s) = SCARG(uap, s); 342 SCARG(&ap, level) = SCARG(uap, level); 343 SCARG(&ap, name) = SCARG(uap, name); 344 SCARG(&ap, val) = SCARG(uap, val); 345 SCARG(&ap, valsize) = SCARG(uap, valsize); 346 347 /* fd_getsock() will use the descriptor for us */ 348 if ((error = fd_getsock(SCARG(&ap, s), &so)) != 0) 349 return error; 350 #define SO_DONTLINGER (~SO_LINGER) 351 if (SCARG(&ap, name) == SO_DONTLINGER) { 352 struct linger lg; 353 354 lg.l_onoff = 0; 355 error = so_setsockopt(l, so, SCARG(&ap, level), SO_LINGER, 356 &lg, sizeof(lg)); 357 goto out; 358 } 359 if (SCARG(&ap, level) == IPPROTO_IP) { 360 #define EMUL_IP_MULTICAST_IF 2 361 #define EMUL_IP_MULTICAST_TTL 3 362 #define EMUL_IP_MULTICAST_LOOP 4 363 #define EMUL_IP_ADD_MEMBERSHIP 5 364 #define EMUL_IP_DROP_MEMBERSHIP 6 365 static const int ipoptxlat[] = { 366 IP_MULTICAST_IF, 367 IP_MULTICAST_TTL, 368 IP_MULTICAST_LOOP, 369 IP_ADD_MEMBERSHIP, 370 IP_DROP_MEMBERSHIP 371 }; 372 if (SCARG(&ap, name) >= EMUL_IP_MULTICAST_IF && 373 SCARG(&ap, name) <= EMUL_IP_DROP_MEMBERSHIP) { 374 SCARG(&ap, name) = 375 ipoptxlat[SCARG(&ap, name) - EMUL_IP_MULTICAST_IF]; 376 } 377 } 378 if (SCARG(&ap, valsize) > MLEN) { 379 error = EINVAL; 380 goto out; 381 } 382 sockopt_init(&sopt, SCARG(&ap, level), SCARG(&ap, name), 383 SCARG(&ap, valsize)); 384 if (SCARG(&ap, val)) { 385 error = copyin(SCARG(&ap, val), sopt.sopt_data, 386 (u_int)SCARG(&ap, valsize)); 387 } 388 if (error == 0) 389 error = sosetopt(so, &sopt); 390 sockopt_destroy(&sopt); 391 out: 392 fd_putfile(SCARG(uap, s)); 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, const struct ultrix_sys_uname_args *uap, register_t *retval) 408 { 409 struct ultrix_utsname sut; 410 const char *cp; 411 char *dp, *ep; 412 413 memset(&sut, 0, sizeof(sut)); 414 415 strncpy(sut.sysname, ostype, sizeof(sut.sysname) - 1); 416 strncpy(sut.nodename, hostname, sizeof(sut.nodename) - 1); 417 strncpy(sut.release, osrelease, sizeof(sut.release) - 1); 418 dp = sut.version; 419 ep = &sut.version[sizeof(sut.version) - 1]; 420 for (cp = version; *cp && *cp != '('; cp++) 421 ; 422 for (cp++; *cp && *cp != ')' && dp < ep; cp++) 423 *dp++ = *cp; 424 for (; *cp && *cp != '#'; cp++) 425 ; 426 for (; *cp && *cp != ':' && dp < ep; cp++) 427 *dp++ = *cp; 428 *dp = '\0'; 429 strncpy(sut.machine, machine, sizeof(sut.machine) - 1); 430 431 return copyout(&sut, SCARG(uap, name), sizeof(sut)); 432 } 433 434 int 435 ultrix_sys_setpgrp(struct lwp *l, const struct ultrix_sys_setpgrp_args *uap, register_t *retval) 436 { 437 struct proc *p = l->l_proc; 438 struct sys_setpgid_args ap; 439 440 SCARG(&ap, pid) = SCARG(uap, pid); 441 SCARG(&ap, pgid) = SCARG(uap, pgid); 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(&ap, pgid) && 449 (!SCARG(&ap, pid) || SCARG(&ap, pid) == p->p_pid)) 450 return sys_setsid(l, &ap, retval); 451 else 452 return sys_setpgid(l, &ap, retval); 453 } 454 455 struct ultrix_ustat { 456 daddr_t f_tfree; /* total free */ 457 uint32_t f_tinode; /* total inodes free */ 458 char f_fname[6]; /* filsys name */ 459 char f_fpack[6]; /* filsys pack name */ 460 }; 461 462 int 463 ultrix_sys_ustat(struct lwp *l, const struct ultrix_sys_ustat_args *uap, register_t *retval) 464 { 465 struct ultrix_ustat us; 466 int error; 467 468 memset(&us, 0, sizeof us); 469 470 /* 471 * XXX: should set f_tfree and f_tinode at least 472 * How do we translate dev -> fstat? (and then to ultrix_ustat) 473 */ 474 475 if ((error = copyout(&us, SCARG(uap, buf), sizeof us)) != 0) 476 return error; 477 return 0; 478 } 479 480 int 481 ultrix_sys_quotactl(struct lwp *l, const struct ultrix_sys_quotactl_args *uap, register_t *retval) 482 { 483 484 return EINVAL; 485 } 486 487 int 488 ultrix_sys_vhangup(struct lwp *l, const void *uap, register_t *retval) 489 { 490 491 return 0; 492 } 493 494 495 /* 496 * RISC Ultrix cache control syscalls 497 */ 498 #ifdef __mips 499 int 500 ultrix_sys_cacheflush(struct lwp *l, const struct ultrix_sys_cacheflush_args *uap, register_t *retval) 501 { 502 /* { 503 syscallarg(void *) addr; 504 syscallarg(unsigned) nbytes; 505 syscallarg(int) flag; 506 } */ 507 struct proc *p = l->l_proc; 508 vaddr_t va = (vaddr_t)SCARG(uap, addr); 509 int nbytes = SCARG(uap, nbytes); 510 int whichcache = SCARG(uap, whichcache); 511 512 return mips_user_cacheflush(p, va, nbytes, whichcache); 513 } 514 515 516 int 517 ultrix_sys_cachectl(struct lwp *l, const struct ultrix_sys_cachectl_args *uap, register_t *retval) 518 { 519 /* { 520 syscallarg(void *) addr; 521 syscallarg(int) nbytes; 522 syscallarg(int) cacheop; 523 } */ 524 struct proc *p = l->l_proc; 525 vaddr_t va = (vaddr_t)SCARG(uap, addr); 526 int nbytes = SCARG(uap, nbytes); 527 int cacheop = SCARG(uap, cacheop); 528 529 return mips_user_cachectl(p, va, nbytes, cacheop); 530 } 531 532 #endif /* __mips */ 533 534 535 int 536 ultrix_sys_exportfs(struct lwp *l, const struct ultrix_sys_exportfs_args *uap, register_t *retval) 537 { 538 539 /* 540 * XXX: should perhaps translate into a mount(2) 541 * with MOUNT_EXPORT? 542 */ 543 return 0; 544 } 545 546 int 547 ultrix_sys_sigpending(struct lwp *l, const struct ultrix_sys_sigpending_args *uap, register_t *retval) 548 { 549 sigset_t ss; 550 int mask; 551 552 sigpending1(l, &ss); 553 mask = ss.__bits[0]; 554 555 return copyout(&mask, SCARG(uap, mask), sizeof(int)); 556 } 557 558 int 559 ultrix_sys_sigreturn(struct lwp *l, const struct ultrix_sys_sigreturn_args *uap, register_t *retval) 560 { 561 /* struct sigcontext13 is close enough to Ultrix */ 562 struct compat_13_sys_sigreturn_args ap; 563 564 SCARG(&ap, sigcntxp) = (void *)SCARG(uap, sigcntxp); 565 566 return compat_13_sys_sigreturn(l, &ap, retval); 567 } 568 569 int 570 ultrix_sys_sigcleanup(struct lwp *l, const struct ultrix_sys_sigcleanup_args *uap, register_t *retval) 571 { 572 573 /* struct sigcontext13 is close enough to Ultrix */ 574 struct compat_13_sys_sigreturn_args ap; 575 576 SCARG(&ap, sigcntxp) = (void *)SCARG(uap, sigcntxp); 577 578 return compat_13_sys_sigreturn(l, &ap, retval); 579 } 580 581 int 582 ultrix_sys_sigsuspend(struct lwp *l, const struct ultrix_sys_sigsuspend_args *uap, register_t *retval) 583 { 584 int mask = SCARG(uap, mask); 585 sigset_t ss; 586 587 ss.__bits[0] = mask; 588 ss.__bits[1] = 0; 589 ss.__bits[2] = 0; 590 ss.__bits[3] = 0; 591 592 return sigsuspend1(l, &ss); 593 } 594 595 #define ULTRIX_SV_ONSTACK 0x0001 /* take signal on signal stack */ 596 #define ULTRIX_SV_INTERRUPT 0x0002 /* do not restart system on signal return */ 597 #define ULTRIX_SV_OLDSIG 0x1000 /* Emulate old signal() for POSIX */ 598 599 int 600 ultrix_sys_sigvec(struct lwp *l, const struct ultrix_sys_sigvec_args *uap, register_t *retval) 601 { 602 struct sigvec nsv, osv; 603 struct sigaction nsa, osa; 604 int error; 605 606 if (SCARG(uap, nsv)) { 607 error = copyin(SCARG(uap, nsv), &nsv, sizeof(nsv)); 608 if (error) 609 return error; 610 nsa.sa_handler = nsv.sv_handler; 611 #if 0 /* documentation */ 612 /* ONSTACK is identical */ 613 nsa.sa_flags = nsv.sv_flags & ULTRIX_SV_ONSTACK; 614 if ((nsv.sv_flags & ULTRIX_SV_OLDSIG) 615 /* old signal() - always restart */ 616 || (!(nsv.sv_flags & ULTRIX_SV_INTERRUPT)) 617 /* inverted meaning (same bit) */ 618 ) 619 nsa.sa_flags |= SA_RESTART; 620 #else /* optimized - assuming ULTRIX_SV_OLDSIG=>!ULTRIX_SV_INTERRUPT */ 621 nsa.sa_flags = nsv.sv_flags & ~ULTRIX_SV_OLDSIG; 622 nsa.sa_flags ^= SA_RESTART; 623 #endif 624 native_sigset13_to_sigset(&nsv.sv_mask, &nsa.sa_mask); 625 } 626 error = sigaction1(l, SCARG(uap, signum), 627 SCARG(uap, nsv) ? &nsa : 0, SCARG(uap, osv) ? &osa : 0, 628 NULL, 0); 629 if (error) 630 return error; 631 if (SCARG(uap, osv)) { 632 osv.sv_handler = osa.sa_handler; 633 osv.sv_flags = osa.sa_flags ^ SA_RESTART; 634 osv.sv_flags &= (ULTRIX_SV_ONSTACK | ULTRIX_SV_INTERRUPT); 635 native_sigset_to_sigset13(&osa.sa_mask, &osv.sv_mask); 636 error = copyout(&osv, SCARG(uap, osv), sizeof(osv)); 637 if (error) 638 return error; 639 } 640 return 0; 641 } 642 643 int 644 ultrix_sys_shmsys(struct lwp *l, const struct ultrix_sys_shmsys_args *uap, register_t *retval) 645 { 646 647 #ifdef SYSVSHM 648 /* Ultrix SVSHM weirndess: */ 649 struct sys_shmat_args shmat_args; 650 struct compat_14_sys_shmctl_args shmctl_args; 651 struct sys_shmdt_args shmdt_args; 652 struct sys_shmget_args shmget_args; 653 654 655 switch (SCARG(uap, shmop)) { 656 case 0: /* Ultrix shmat() */ 657 SCARG(&shmat_args, shmid) = SCARG(uap, a2); 658 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a3); 659 SCARG(&shmat_args, shmflg) = SCARG(uap, a4); 660 return sys_shmat(l, &shmat_args, retval); 661 662 case 1: /* Ultrix shmctl() */ 663 SCARG(&shmctl_args, shmid) = SCARG(uap, a2); 664 SCARG(&shmctl_args, cmd) = SCARG(uap, a3); 665 SCARG(&shmctl_args, buf) = (struct shmid_ds14 *)SCARG(uap, a4); 666 return compat_14_sys_shmctl(l, &shmctl_args, retval); 667 668 case 2: /* Ultrix shmdt() */ 669 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a2); 670 return sys_shmdt(l, &shmdt_args, retval); 671 672 case 3: /* Ultrix shmget() */ 673 SCARG(&shmget_args, key) = SCARG(uap, a2); 674 SCARG(&shmget_args, size) = SCARG(uap, a3); 675 SCARG(&shmget_args, shmflg) = SCARG(uap, a4) 676 & (IPC_CREAT|IPC_EXCL|IPC_NOWAIT); 677 return sys_shmget(l, &shmget_args, retval); 678 679 default: 680 return EINVAL; 681 } 682 #else 683 return EOPNOTSUPP; 684 #endif /* SYSVSHM */ 685 } 686 687 static int 688 ultrix_to_bsd_flock(struct ultrix_flock *ufl, struct flock *fl) 689 { 690 691 fl->l_start = ufl->l_start; 692 fl->l_len = ufl->l_len; 693 fl->l_pid = ufl->l_pid; 694 fl->l_whence = ufl->l_whence; 695 696 switch (ufl->l_type) { 697 case ULTRIX_F_RDLCK: 698 fl->l_type = F_RDLCK; 699 break; 700 case ULTRIX_F_WRLCK: 701 fl->l_type = F_WRLCK; 702 break; 703 case ULTRIX_F_UNLCK: 704 fl->l_type = F_UNLCK; 705 break; 706 default: 707 return EINVAL; 708 } 709 710 return 0; 711 } 712 713 static void 714 bsd_to_ultrix_flock(struct flock *fl, struct ultrix_flock *ufl) 715 { 716 717 ufl->l_start = fl->l_start; 718 ufl->l_len = fl->l_len; 719 ufl->l_pid = fl->l_pid; 720 ufl->l_whence = fl->l_whence; 721 722 switch (fl->l_type) { 723 case F_RDLCK: 724 ufl->l_type = ULTRIX_F_RDLCK; 725 break; 726 case F_WRLCK: 727 ufl->l_type = ULTRIX_F_WRLCK; 728 break; 729 case F_UNLCK: 730 ufl->l_type = ULTRIX_F_UNLCK; 731 break; 732 } 733 } 734 735 int 736 ultrix_sys_fcntl(struct lwp *l, const struct ultrix_sys_fcntl_args *uap, register_t *retval) 737 { 738 int error; 739 struct ultrix_flock ufl; 740 struct flock fl; 741 742 switch (SCARG(uap, cmd)) { 743 case F_GETLK: 744 case F_SETLK: 745 case F_SETLKW: 746 error = copyin(SCARG(uap, arg), &ufl, sizeof(ufl)); 747 if (error) 748 return error; 749 error = ultrix_to_bsd_flock(&ufl, &fl); 750 if (error) 751 return error; 752 error = do_fcntl_lock(SCARG(uap, fd), SCARG(uap, cmd), &fl); 753 if (SCARG(uap, cmd) != F_GETLK || error != 0) 754 return error; 755 bsd_to_ultrix_flock(&fl, &ufl); 756 return copyout(&ufl, SCARG(uap, arg), sizeof(ufl)); 757 758 default: 759 break; 760 } 761 762 return sys_fcntl(l, (const void *)uap, retval); 763 } 764
Indexes created Thu Sep 25 16:09:42 GMT 2025