ultrix_misc.c revision 1.123
1 /* $NetBSD: ultrix_misc.c,v 1.123 2018/01/09 20:55:43 maya 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 1.123 2018/01/09 20:55:43 maya 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_vm_default_addr = uvm_default_mapaddr, 199 .e_usertrap = NULL, 200 .e_ucsize = 0, 201 .e_startlwp = NULL 202 }; 203 204 #define GSI_PROG_ENV 1 205 206 int 207 ultrix_sys_getsysinfo(struct lwp *l, const struct ultrix_sys_getsysinfo_args *uap, register_t *retval) 208 { 209 static short progenv = 0; 210 211 switch (SCARG(uap, op)) { 212 /* operations implemented: */ 213 case GSI_PROG_ENV: 214 if (SCARG(uap, nbytes) < sizeof(short)) 215 return EINVAL; 216 *retval = 1; 217 return copyout(&progenv, SCARG(uap, buffer), sizeof(progenv)); 218 default: 219 *retval = 0; /* info unavail */ 220 return 0; 221 } 222 } 223 224 int 225 ultrix_sys_setsysinfo(struct lwp *l, const struct ultrix_sys_setsysinfo_args *uap, register_t *retval) 226 { 227 228 *retval = 0; 229 return 0; 230 } 231 232 int 233 ultrix_sys_waitpid(struct lwp *l, const struct ultrix_sys_waitpid_args *uap, register_t *retval) 234 { 235 struct compat_50_sys_wait4_args ap; 236 237 SCARG(&ap, pid) = SCARG(uap, pid); 238 SCARG(&ap, status) = SCARG(uap, status); 239 SCARG(&ap, options) = SCARG(uap, options); 240 SCARG(&ap, rusage) = 0; 241 242 return compat_50_sys_wait4(l, &ap, retval); 243 } 244 245 int 246 ultrix_sys_wait3(struct lwp *l, const struct ultrix_sys_wait3_args *uap, register_t *retval) 247 { 248 struct compat_50_sys_wait4_args ap; 249 250 SCARG(&ap, pid) = -1; 251 SCARG(&ap, status) = SCARG(uap, status); 252 SCARG(&ap, options) = SCARG(uap, options); 253 SCARG(&ap, rusage) = SCARG(uap, rusage); 254 255 return compat_50_sys_wait4(l, &ap, retval); 256 } 257 258 /* 259 * Ultrix binaries pass in FD_MAX as the first arg to select(). 260 * On Ultrix, FD_MAX is 4096, which is more than the NetBSD sys_select() 261 * can handle. 262 * Since we can't have more than the (native) FD_MAX descriptors open, 263 * limit nfds to at most FD_MAX. 264 */ 265 int 266 ultrix_sys_select(struct lwp *l, const struct ultrix_sys_select_args *uap, register_t *retval) 267 { 268 struct timeval50 atv; 269 int error; 270 struct compat_50_sys_select_args ap; 271 272 /* Limit number of FDs selected on to the native maximum */ 273 274 if (SCARG(uap, nd) > FD_SETSIZE) 275 SCARG(&ap, nd) = FD_SETSIZE; 276 else 277 SCARG(&ap, nd) = SCARG(uap, nd); 278 279 SCARG(&ap, in) = SCARG(uap, in); 280 SCARG(&ap, ou) = SCARG(uap, ou); 281 SCARG(&ap, ex) = SCARG(uap, ex); 282 SCARG(&ap, tv) = SCARG(uap, tv); 283 /* Check for negative timeval */ 284 if (SCARG(&ap, tv)) { 285 error = copyin(SCARG(uap, tv), &atv, sizeof(atv)); 286 if (error) 287 goto done; 288 #ifdef DEBUG 289 /* Ultrix clients sometimes give negative timeouts? */ 290 if (atv.tv_sec < 0 || atv.tv_usec < 0) 291 printf("ultrix select( %ld, %ld): negative timeout\n", 292 atv.tv_sec, atv.tv_usec); 293 #endif 294 295 } 296 error = compat_50_sys_select(l, &ap, retval); 297 if (error == EINVAL) 298 printf("ultrix select: bad args?\n"); 299 300 done: 301 return error; 302 } 303 304 305 #define SUN__MAP_NEW 0x80000000 /* if not, old mmap & cannot handle */ 306 307 int 308 ultrix_sys_mmap(struct lwp *l, const struct ultrix_sys_mmap_args *uap, register_t *retval) 309 { 310 struct sys_mmap_args ouap; 311 312 /* 313 * Verify the arguments. 314 */ 315 if (SCARG(uap, prot) & ~(PROT_READ|PROT_WRITE|PROT_EXEC)) 316 return EINVAL; /* XXX still needed? */ 317 318 if ((SCARG(uap, flags) & SUN__MAP_NEW) == 0) 319 return EINVAL; 320 321 SCARG(&ouap, flags) = SCARG(uap, flags) & ~SUN__MAP_NEW; 322 SCARG(&ouap, addr) = SCARG(uap, addr); 323 SCARG(&ouap, len) = SCARG(uap, len); 324 SCARG(&ouap, prot) = SCARG(uap, prot); 325 SCARG(&ouap, fd) = SCARG(uap, fd); 326 SCARG(&ouap, pos) = SCARG(uap, pos); 327 328 return sys_mmap(l, &ouap, retval); 329 } 330 331 int 332 ultrix_sys_setsockopt(struct lwp *l, const struct ultrix_sys_setsockopt_args *uap, register_t *retval) 333 { 334 struct sockopt sopt; 335 struct socket *so; 336 int error; 337 struct sys_setsockopt_args ap; 338 339 SCARG(&ap, s) = SCARG(uap, s); 340 SCARG(&ap, level) = SCARG(uap, level); 341 SCARG(&ap, name) = SCARG(uap, name); 342 SCARG(&ap, val) = SCARG(uap, val); 343 SCARG(&ap, valsize) = SCARG(uap, valsize); 344 345 /* fd_getsock() will use the descriptor for us */ 346 if ((error = fd_getsock(SCARG(&ap, s), &so)) != 0) 347 return error; 348 #define SO_DONTLINGER (~SO_LINGER) 349 if (SCARG(&ap, name) == SO_DONTLINGER) { 350 struct linger lg; 351 352 lg.l_onoff = 0; 353 error = so_setsockopt(l, so, SCARG(&ap, level), SO_LINGER, 354 &lg, sizeof(lg)); 355 goto out; 356 } 357 if (SCARG(&ap, level) == IPPROTO_IP) { 358 #define EMUL_IP_MULTICAST_IF 2 359 #define EMUL_IP_MULTICAST_TTL 3 360 #define EMUL_IP_MULTICAST_LOOP 4 361 #define EMUL_IP_ADD_MEMBERSHIP 5 362 #define EMUL_IP_DROP_MEMBERSHIP 6 363 static const int ipoptxlat[] = { 364 IP_MULTICAST_IF, 365 IP_MULTICAST_TTL, 366 IP_MULTICAST_LOOP, 367 IP_ADD_MEMBERSHIP, 368 IP_DROP_MEMBERSHIP 369 }; 370 if (SCARG(&ap, name) >= EMUL_IP_MULTICAST_IF && 371 SCARG(&ap, name) <= EMUL_IP_DROP_MEMBERSHIP) { 372 SCARG(&ap, name) = 373 ipoptxlat[SCARG(&ap, name) - EMUL_IP_MULTICAST_IF]; 374 } 375 } 376 if (SCARG(&ap, valsize) > MLEN) { 377 error = EINVAL; 378 goto out; 379 } 380 sockopt_init(&sopt, SCARG(&ap, level), SCARG(&ap, name), 381 SCARG(&ap, valsize)); 382 if (SCARG(&ap, val)) { 383 error = copyin(SCARG(&ap, val), sopt.sopt_data, 384 (u_int)SCARG(&ap, valsize)); 385 } 386 if (error == 0) 387 error = sosetopt(so, &sopt); 388 sockopt_destroy(&sopt); 389 out: 390 fd_putfile(SCARG(uap, s)); 391 return error; 392 } 393 394 #define ULTRIX__SYS_NMLN 32 395 396 struct ultrix_utsname { 397 char sysname[ULTRIX__SYS_NMLN]; 398 char nodename[ULTRIX__SYS_NMLN]; 399 char release[ULTRIX__SYS_NMLN]; 400 char version[ULTRIX__SYS_NMLN]; 401 char machine[ULTRIX__SYS_NMLN]; 402 }; 403 404 int 405 ultrix_sys_uname(struct lwp *l, const struct ultrix_sys_uname_args *uap, register_t *retval) 406 { 407 struct ultrix_utsname sut; 408 const char *cp; 409 char *dp, *ep; 410 411 memset(&sut, 0, sizeof(sut)); 412 413 strncpy(sut.sysname, ostype, sizeof(sut.sysname) - 1); 414 strncpy(sut.nodename, hostname, sizeof(sut.nodename) - 1); 415 strncpy(sut.release, osrelease, sizeof(sut.release) - 1); 416 dp = sut.version; 417 ep = &sut.version[sizeof(sut.version) - 1]; 418 for (cp = version; *cp && *cp != '('; cp++) 419 ; 420 for (cp++; *cp && *cp != ')' && dp < ep; cp++) 421 *dp++ = *cp; 422 for (; *cp && *cp != '#'; cp++) 423 ; 424 for (; *cp && *cp != ':' && dp < ep; cp++) 425 *dp++ = *cp; 426 *dp = '\0'; 427 strncpy(sut.machine, machine, sizeof(sut.machine) - 1); 428 429 return copyout(&sut, SCARG(uap, name), sizeof(sut)); 430 } 431 432 int 433 ultrix_sys_setpgrp(struct lwp *l, const struct ultrix_sys_setpgrp_args *uap, register_t *retval) 434 { 435 struct proc *p = l->l_proc; 436 struct sys_setpgid_args ap; 437 438 SCARG(&ap, pid) = SCARG(uap, pid); 439 SCARG(&ap, pgid) = SCARG(uap, pgid); 440 /* 441 * difference to our setpgid call is to include backwards 442 * compatibility to pre-setsid() binaries. Do setsid() 443 * instead of setpgid() in those cases where the process 444 * tries to create a new session the old way. 445 */ 446 if (!SCARG(&ap, pgid) && 447 (!SCARG(&ap, pid) || SCARG(&ap, pid) == p->p_pid)) 448 return sys_setsid(l, &ap, retval); 449 else 450 return sys_setpgid(l, &ap, retval); 451 } 452 453 struct ultrix_ustat { 454 daddr_t f_tfree; /* total free */ 455 uint32_t f_tinode; /* total inodes free */ 456 char f_fname[6]; /* filsys name */ 457 char f_fpack[6]; /* filsys pack name */ 458 }; 459 460 int 461 ultrix_sys_ustat(struct lwp *l, const struct ultrix_sys_ustat_args *uap, register_t *retval) 462 { 463 struct ultrix_ustat us; 464 int error; 465 466 memset(&us, 0, sizeof us); 467 468 /* 469 * XXX: should set f_tfree and f_tinode at least 470 * How do we translate dev -> fstat? (and then to ultrix_ustat) 471 */ 472 473 if ((error = copyout(&us, SCARG(uap, buf), sizeof us)) != 0) 474 return error; 475 return 0; 476 } 477 478 int 479 ultrix_sys_quotactl(struct lwp *l, const struct ultrix_sys_quotactl_args *uap, register_t *retval) 480 { 481 482 return EINVAL; 483 } 484 485 int 486 ultrix_sys_vhangup(struct lwp *l, const void *uap, register_t *retval) 487 { 488 489 return 0; 490 } 491 492 493 /* 494 * RISC Ultrix cache control syscalls 495 */ 496 #ifdef __mips 497 int 498 ultrix_sys_cacheflush(struct lwp *l, const struct ultrix_sys_cacheflush_args *uap, register_t *retval) 499 { 500 /* { 501 syscallarg(void *) addr; 502 syscallarg(unsigned) nbytes; 503 syscallarg(int) flag; 504 } */ 505 struct proc *p = l->l_proc; 506 vaddr_t va = (vaddr_t)SCARG(uap, addr); 507 int nbytes = SCARG(uap, nbytes); 508 int whichcache = SCARG(uap, whichcache); 509 510 return mips_user_cacheflush(p, va, nbytes, whichcache); 511 } 512 513 514 int 515 ultrix_sys_cachectl(struct lwp *l, const struct ultrix_sys_cachectl_args *uap, register_t *retval) 516 { 517 /* { 518 syscallarg(void *) addr; 519 syscallarg(int) nbytes; 520 syscallarg(int) cacheop; 521 } */ 522 struct proc *p = l->l_proc; 523 vaddr_t va = (vaddr_t)SCARG(uap, addr); 524 int nbytes = SCARG(uap, nbytes); 525 int cacheop = SCARG(uap, cacheop); 526 527 return mips_user_cachectl(p, va, nbytes, cacheop); 528 } 529 530 #endif /* __mips */ 531 532 533 int 534 ultrix_sys_exportfs(struct lwp *l, const struct ultrix_sys_exportfs_args *uap, register_t *retval) 535 { 536 537 /* 538 * XXX: should perhaps translate into a mount(2) 539 * with MOUNT_EXPORT? 540 */ 541 return 0; 542 } 543 544 int 545 ultrix_sys_sigpending(struct lwp *l, const struct ultrix_sys_sigpending_args *uap, register_t *retval) 546 { 547 sigset_t ss; 548 int mask; 549 550 sigpending1(l, &ss); 551 mask = ss.__bits[0]; 552 553 return copyout(&mask, SCARG(uap, mask), sizeof(int)); 554 } 555 556 int 557 ultrix_sys_sigreturn(struct lwp *l, const struct ultrix_sys_sigreturn_args *uap, register_t *retval) 558 { 559 /* struct sigcontext13 is close enough to Ultrix */ 560 struct compat_13_sys_sigreturn_args ap; 561 562 SCARG(&ap, sigcntxp) = (void *)SCARG(uap, sigcntxp); 563 564 return compat_13_sys_sigreturn(l, &ap, retval); 565 } 566 567 int 568 ultrix_sys_sigcleanup(struct lwp *l, const struct ultrix_sys_sigcleanup_args *uap, register_t *retval) 569 { 570 571 /* struct sigcontext13 is close enough to Ultrix */ 572 struct compat_13_sys_sigreturn_args ap; 573 574 SCARG(&ap, sigcntxp) = (void *)SCARG(uap, sigcntxp); 575 576 return compat_13_sys_sigreturn(l, &ap, retval); 577 } 578 579 int 580 ultrix_sys_sigsuspend(struct lwp *l, const struct ultrix_sys_sigsuspend_args *uap, register_t *retval) 581 { 582 int mask = SCARG(uap, mask); 583 sigset_t ss; 584 585 ss.__bits[0] = mask; 586 ss.__bits[1] = 0; 587 ss.__bits[2] = 0; 588 ss.__bits[3] = 0; 589 590 return sigsuspend1(l, &ss); 591 } 592 593 #define ULTRIX_SV_ONSTACK 0x0001 /* take signal on signal stack */ 594 #define ULTRIX_SV_INTERRUPT 0x0002 /* do not restart system on signal return */ 595 #define ULTRIX_SV_OLDSIG 0x1000 /* Emulate old signal() for POSIX */ 596 597 int 598 ultrix_sys_sigvec(struct lwp *l, const struct ultrix_sys_sigvec_args *uap, register_t *retval) 599 { 600 struct sigvec nsv, osv; 601 struct sigaction nsa, osa; 602 int error; 603 604 if (SCARG(uap, nsv)) { 605 error = copyin(SCARG(uap, nsv), &nsv, sizeof(nsv)); 606 if (error) 607 return error; 608 nsa.sa_handler = nsv.sv_handler; 609 #if 0 /* documentation */ 610 /* ONSTACK is identical */ 611 nsa.sa_flags = nsv.sv_flags & ULTRIX_SV_ONSTACK; 612 if ((nsv.sv_flags & ULTRIX_SV_OLDSIG) 613 /* old signal() - always restart */ 614 || (!(nsv.sv_flags & ULTRIX_SV_INTERRUPT)) 615 /* inverted meaning (same bit) */ 616 ) 617 nsa.sa_flags |= SA_RESTART; 618 #else /* optimized - assuming ULTRIX_SV_OLDSIG=>!ULTRIX_SV_INTERRUPT */ 619 nsa.sa_flags = nsv.sv_flags & ~ULTRIX_SV_OLDSIG; 620 nsa.sa_flags ^= SA_RESTART; 621 #endif 622 native_sigset13_to_sigset(&nsv.sv_mask, &nsa.sa_mask); 623 } 624 error = sigaction1(l, SCARG(uap, signum), 625 SCARG(uap, nsv) ? &nsa : 0, SCARG(uap, osv) ? &osa : 0, 626 NULL, 0); 627 if (error) 628 return error; 629 if (SCARG(uap, osv)) { 630 osv.sv_handler = osa.sa_handler; 631 osv.sv_flags = osa.sa_flags ^ SA_RESTART; 632 osv.sv_flags &= (ULTRIX_SV_ONSTACK | ULTRIX_SV_INTERRUPT); 633 native_sigset_to_sigset13(&osa.sa_mask, &osv.sv_mask); 634 error = copyout(&osv, SCARG(uap, osv), sizeof(osv)); 635 if (error) 636 return error; 637 } 638 return 0; 639 } 640 641 int 642 ultrix_sys_shmsys(struct lwp *l, const struct ultrix_sys_shmsys_args *uap, register_t *retval) 643 { 644 645 #ifdef SYSVSHM 646 /* Ultrix SVSHM weirndess: */ 647 struct sys_shmat_args shmat_args; 648 struct compat_14_sys_shmctl_args shmctl_args; 649 struct sys_shmdt_args shmdt_args; 650 struct sys_shmget_args shmget_args; 651 652 653 switch (SCARG(uap, shmop)) { 654 case 0: /* Ultrix shmat() */ 655 SCARG(&shmat_args, shmid) = SCARG(uap, a2); 656 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a3); 657 SCARG(&shmat_args, shmflg) = SCARG(uap, a4); 658 return sys_shmat(l, &shmat_args, retval); 659 660 case 1: /* Ultrix shmctl() */ 661 SCARG(&shmctl_args, shmid) = SCARG(uap, a2); 662 SCARG(&shmctl_args, cmd) = SCARG(uap, a3); 663 SCARG(&shmctl_args, buf) = (struct shmid_ds14 *)SCARG(uap, a4); 664 return compat_14_sys_shmctl(l, &shmctl_args, retval); 665 666 case 2: /* Ultrix shmdt() */ 667 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a2); 668 return sys_shmdt(l, &shmdt_args, retval); 669 670 case 3: /* Ultrix shmget() */ 671 SCARG(&shmget_args, key) = SCARG(uap, a2); 672 SCARG(&shmget_args, size) = SCARG(uap, a3); 673 SCARG(&shmget_args, shmflg) = SCARG(uap, a4) 674 & (IPC_CREAT|IPC_EXCL|IPC_NOWAIT); 675 return sys_shmget(l, &shmget_args, retval); 676 677 default: 678 return EINVAL; 679 } 680 #else 681 return EOPNOTSUPP; 682 #endif /* SYSVSHM */ 683 } 684 685 static int 686 ultrix_to_bsd_flock(struct ultrix_flock *ufl, struct flock *fl) 687 { 688 689 fl->l_start = ufl->l_start; 690 fl->l_len = ufl->l_len; 691 fl->l_pid = ufl->l_pid; 692 fl->l_whence = ufl->l_whence; 693 694 switch (ufl->l_type) { 695 case ULTRIX_F_RDLCK: 696 fl->l_type = F_RDLCK; 697 break; 698 case ULTRIX_F_WRLCK: 699 fl->l_type = F_WRLCK; 700 break; 701 case ULTRIX_F_UNLCK: 702 fl->l_type = F_UNLCK; 703 break; 704 default: 705 return EINVAL; 706 } 707 708 return 0; 709 } 710 711 static void 712 bsd_to_ultrix_flock(struct flock *fl, struct ultrix_flock *ufl) 713 { 714 715 ufl->l_start = fl->l_start; 716 ufl->l_len = fl->l_len; 717 ufl->l_pid = fl->l_pid; 718 ufl->l_whence = fl->l_whence; 719 720 switch (fl->l_type) { 721 case F_RDLCK: 722 ufl->l_type = ULTRIX_F_RDLCK; 723 break; 724 case F_WRLCK: 725 ufl->l_type = ULTRIX_F_WRLCK; 726 break; 727 case F_UNLCK: 728 ufl->l_type = ULTRIX_F_UNLCK; 729 break; 730 } 731 } 732 733 int 734 ultrix_sys_fcntl(struct lwp *l, const struct ultrix_sys_fcntl_args *uap, register_t *retval) 735 { 736 int error; 737 struct ultrix_flock ufl; 738 struct flock fl; 739 740 switch (SCARG(uap, cmd)) { 741 case F_GETLK: 742 case F_SETLK: 743 case F_SETLKW: 744 error = copyin(SCARG(uap, arg), &ufl, sizeof(ufl)); 745 if (error) 746 return error; 747 error = ultrix_to_bsd_flock(&ufl, &fl); 748 if (error) 749 return error; 750 error = do_fcntl_lock(SCARG(uap, fd), SCARG(uap, cmd), &fl); 751 if (SCARG(uap, cmd) != F_GETLK || error != 0) 752 return error; 753 bsd_to_ultrix_flock(&fl, &ufl); 754 return copyout(&ufl, SCARG(uap, arg), sizeof(ufl)); 755 756 default: 757 break; 758 } 759 760 return sys_fcntl(l, (const void *)uap, retval); 761 } 762
Indexes created Fri Oct 03 02:09:57 GMT 2025