1 /* $NetBSD: ultrix_misc.c,v 1.130 2026/09/20 13:47:18 riastradh 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 1.130 2026/09/20 13:47:18 riastradh 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 uint32_t ultrix_sysent_nomodbits[]; 153 extern const char * const ultrix_syscallnames[]; 154 extern char ultrix_sigcode[], ultrix_esigcode[]; 155 156 struct uvm_object *emul_ultrix_object; 157 158 #ifndef __HAVE_SYSCALL_INTERN 159 void syscall(void); 160 #endif 161 162 struct emul emul_ultrix = { 163 .e_name = "ultrix", 164 .e_path = "/emul/ultrix", 165 #ifndef __HAVE_MINIMAL_EMUL 166 .e_flags = 0, 167 .e_errno = NULL, 168 .e_nosys = ULTRIX_SYS_syscall, 169 .e_nsysent = ULTRIX_SYS_NSYSENT, 170 #endif 171 .e_sysent = ultrix_sysent, 172 .e_nomodbits = ultrix_sysent_nomodbits, 173 #ifdef SYSCALL_DEBUG 174 .e_syscallnames = ultrix_syscallnames, 175 #else 176 .e_syscallnames = NULL, 177 #endif 178 #ifdef __mips 179 .e_sendsig = sendsig_sigcontext, 180 #else /* vax */ 181 .e_sendsig = sendsig, 182 #endif 183 .e_trapsignal = trapsignal, 184 .e_sigcode = ultrix_sigcode, 185 .e_esigcode = ultrix_esigcode, 186 .e_sigobject = &emul_ultrix_object, 187 .e_setregs = setregs, 188 .e_proc_exec = NULL, 189 .e_proc_fork = NULL, 190 .e_proc_exit = NULL, 191 .e_lwp_fork = NULL, 192 .e_lwp_exit = NULL, 193 #ifdef __HAVE_SYSCALL_INTERN 194 .e_syscall_intern = syscall_intern, 195 #else 196 .e_syscall_intern = syscall, 197 #endif 198 .e_sysctlovly = NULL, 199 .e_vm_default_addr = uvm_default_mapaddr, 200 .e_usertrap = NULL, 201 .e_ucsize = 0, 202 .e_startlwp = NULL 203 }; 204 205 #define GSI_PROG_ENV 1 206 207 int 208 ultrix_sys_getsysinfo(struct lwp *l, const struct ultrix_sys_getsysinfo_args *uap, register_t *retval) 209 { 210 static short progenv = 0; 211 212 switch (SCARG(uap, op)) { 213 /* operations implemented: */ 214 case GSI_PROG_ENV: 215 if (SCARG(uap, nbytes) < sizeof(short)) 216 return EINVAL; 217 *retval = 1; 218 return copyout(&progenv, SCARG(uap, buffer), sizeof(progenv)); 219 default: 220 *retval = 0; /* info unavail */ 221 return 0; 222 } 223 } 224 225 int 226 ultrix_sys_setsysinfo(struct lwp *l, const struct ultrix_sys_setsysinfo_args *uap, register_t *retval) 227 { 228 229 *retval = 0; 230 return 0; 231 } 232 233 int 234 ultrix_sys_waitpid(struct lwp *l, const struct ultrix_sys_waitpid_args *uap, register_t *retval) 235 { 236 struct compat_50_sys_wait4_args ap; 237 238 memset(&ap, 0, sizeof(ap)); 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 memset(&ap, 0, sizeof(ap)); 253 SCARG(&ap, pid) = -1; 254 SCARG(&ap, status) = SCARG(uap, status); 255 SCARG(&ap, options) = SCARG(uap, options); 256 SCARG(&ap, rusage) = SCARG(uap, rusage); 257 258 return compat_50_sys_wait4(l, &ap, retval); 259 } 260 261 /* 262 * Ultrix binaries pass in FD_MAX as the first arg to select(). 263 * On Ultrix, FD_MAX is 4096, which is more than the NetBSD sys_select() 264 * can handle. 265 * Since we can't have more than the (native) FD_MAX descriptors open, 266 * limit nfds to at most FD_MAX. 267 */ 268 int 269 ultrix_sys_select(struct lwp *l, const struct ultrix_sys_select_args *uap, register_t *retval) 270 { 271 struct timeval50 atv; 272 int error; 273 struct compat_50_sys_select_args ap; 274 275 memset(&ap, 0, sizeof(ap)); 276 277 /* Limit number of FDs selected on to the native maximum */ 278 if (SCARG(uap, nd) > FD_SETSIZE) 279 SCARG(&ap, nd) = FD_SETSIZE; 280 else 281 SCARG(&ap, nd) = SCARG(uap, nd); 282 283 SCARG(&ap, in) = SCARG(uap, in); 284 SCARG(&ap, ou) = SCARG(uap, ou); 285 SCARG(&ap, ex) = SCARG(uap, ex); 286 SCARG(&ap, tv) = SCARG(uap, tv); 287 /* Check for negative timeval */ 288 if (SCARG(&ap, tv)) { 289 error = copyin(SCARG(uap, tv), &atv, 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 #endif 298 299 } 300 error = compat_50_sys_select(l, &ap, retval); 301 if (error == EINVAL) 302 printf("ultrix select: bad args?\n"); 303 304 done: 305 return error; 306 } 307 308 309 #define SUN__MAP_NEW 0x80000000 /* if not, old mmap & cannot handle */ 310 311 int 312 ultrix_sys_mmap(struct lwp *l, const struct ultrix_sys_mmap_args *uap, register_t *retval) 313 { 314 struct sys_mmap_args ouap; 315 316 /* 317 * Verify the arguments. 318 */ 319 if (SCARG(uap, prot) & ~(PROT_READ|PROT_WRITE|PROT_EXEC)) 320 return EINVAL; /* XXX still needed? */ 321 322 if ((SCARG(uap, flags) & SUN__MAP_NEW) == 0) 323 return EINVAL; 324 325 memset(&ouap, 0, sizeof(ouap)); 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, const struct ultrix_sys_setsockopt_args *uap, register_t *retval) 338 { 339 struct sockopt sopt; 340 struct socket *so; 341 int error; 342 struct sys_setsockopt_args ap; 343 344 memset(&ap, 0, sizeof(ap)); 345 SCARG(&ap, s) = SCARG(uap, s); 346 SCARG(&ap, level) = SCARG(uap, level); 347 SCARG(&ap, name) = SCARG(uap, name); 348 SCARG(&ap, val) = SCARG(uap, val); 349 SCARG(&ap, valsize) = SCARG(uap, valsize); 350 351 /* fd_getsock() will use the descriptor for us */ 352 if ((error = fd_getsock(SCARG(&ap, s), &so)) != 0) 353 return error; 354 #define SO_DONTLINGER (~SO_LINGER) 355 if (SCARG(&ap, name) == SO_DONTLINGER) { 356 struct linger lg; 357 358 lg.l_onoff = 0; 359 error = so_setsockopt(l, so, SCARG(&ap, level), SO_LINGER, 360 &lg, sizeof(lg)); 361 goto out; 362 } 363 if (SCARG(&ap, level) == IPPROTO_IP) { 364 #define EMUL_IP_MULTICAST_IF 2 365 #define EMUL_IP_MULTICAST_TTL 3 366 #define EMUL_IP_MULTICAST_LOOP 4 367 #define EMUL_IP_ADD_MEMBERSHIP 5 368 #define EMUL_IP_DROP_MEMBERSHIP 6 369 static const int ipoptxlat[] = { 370 IP_MULTICAST_IF, 371 IP_MULTICAST_TTL, 372 IP_MULTICAST_LOOP, 373 IP_ADD_MEMBERSHIP, 374 IP_DROP_MEMBERSHIP 375 }; 376 if (SCARG(&ap, name) >= EMUL_IP_MULTICAST_IF && 377 SCARG(&ap, name) <= EMUL_IP_DROP_MEMBERSHIP) { 378 SCARG(&ap, name) = 379 ipoptxlat[SCARG(&ap, name) - EMUL_IP_MULTICAST_IF]; 380 } 381 } 382 if (SCARG(&ap, valsize) > MLEN) { 383 error = EINVAL; 384 goto out; 385 } 386 sockopt_init(&sopt, SCARG(&ap, level), SCARG(&ap, name), 387 SCARG(&ap, valsize)); 388 if (SCARG(&ap, val)) { 389 error = copyin(SCARG(&ap, val), sopt.sopt_data, 390 (u_int)SCARG(&ap, valsize)); 391 } 392 if (error == 0) 393 error = sosetopt(so, &sopt); 394 sockopt_destroy(&sopt); 395 out: 396 fd_putfile(SCARG(uap, s)); 397 return error; 398 } 399 400 #define ULTRIX__SYS_NMLN 32 401 402 struct ultrix_utsname { 403 char sysname[ULTRIX__SYS_NMLN]; 404 char nodename[ULTRIX__SYS_NMLN]; 405 char release[ULTRIX__SYS_NMLN]; 406 char version[ULTRIX__SYS_NMLN]; 407 char machine[ULTRIX__SYS_NMLN]; 408 }; 409 410 int 411 ultrix_sys_uname(struct lwp *l, const struct ultrix_sys_uname_args *uap, register_t *retval) 412 { 413 struct ultrix_utsname sut; 414 const char *cp; 415 char *dp, *ep; 416 417 memset(&sut, 0, sizeof(sut)); 418 419 strncpy(sut.sysname, ostype, sizeof(sut.sysname) - 1); 420 strncpy(sut.nodename, hostname, sizeof(sut.nodename) - 1); 421 strncpy(sut.release, osrelease, sizeof(sut.release) - 1); 422 dp = sut.version; 423 ep = &sut.version[sizeof(sut.version) - 1]; 424 for (cp = version; *cp && *cp != '('; cp++) 425 ; 426 for (cp++; *cp && *cp != ')' && dp < ep; cp++) 427 *dp++ = *cp; 428 for (; *cp && *cp != '#'; cp++) 429 ; 430 for (; *cp && *cp != ':' && dp < ep; cp++) 431 *dp++ = *cp; 432 *dp = '\0'; 433 strncpy(sut.machine, machine, sizeof(sut.machine) - 1); 434 435 return copyout(&sut, SCARG(uap, name), sizeof(sut)); 436 } 437 438 int 439 ultrix_sys_setpgrp(struct lwp *l, const struct ultrix_sys_setpgrp_args *uap, register_t *retval) 440 { 441 struct proc *p = l->l_proc; 442 struct sys_setpgid_args ap; 443 444 memset(&ap, 0, sizeof(ap)); 445 SCARG(&ap, pid) = SCARG(uap, pid); 446 SCARG(&ap, pgid) = SCARG(uap, pgid); 447 /* 448 * difference to our setpgid call is to include backwards 449 * compatibility to pre-setsid() binaries. Do setsid() 450 * instead of setpgid() in those cases where the process 451 * tries to create a new session the old way. 452 */ 453 if (!SCARG(&ap, pgid) && 454 (!SCARG(&ap, pid) || SCARG(&ap, pid) == p->p_pid)) 455 return sys_setsid(l, &ap, retval); 456 else 457 return sys_setpgid(l, &ap, retval); 458 } 459 460 struct ultrix_ustat { 461 daddr_t f_tfree; /* total free */ 462 uint32_t f_tinode; /* total inodes free */ 463 char f_fname[6]; /* filsys name */ 464 char f_fpack[6]; /* filsys pack name */ 465 }; 466 467 int 468 ultrix_sys_ustat(struct lwp *l, const struct ultrix_sys_ustat_args *uap, register_t *retval) 469 { 470 struct ultrix_ustat us; 471 int error; 472 473 memset(&us, 0, sizeof us); 474 475 /* 476 * XXX: should set f_tfree and f_tinode at least 477 * How do we translate dev -> fstat? (and then to ultrix_ustat) 478 */ 479 480 if ((error = copyout(&us, SCARG(uap, buf), sizeof us)) != 0) 481 return error; 482 return 0; 483 } 484 485 int 486 ultrix_sys_quotactl(struct lwp *l, const struct ultrix_sys_quotactl_args *uap, register_t *retval) 487 { 488 489 return EINVAL; 490 } 491 492 int 493 ultrix_sys_vhangup(struct lwp *l, const void *uap, register_t *retval) 494 { 495 496 return 0; 497 } 498 499 500 /* 501 * RISC Ultrix cache control syscalls 502 */ 503 #ifdef __mips 504 int 505 ultrix_sys_cacheflush(struct lwp *l, const struct ultrix_sys_cacheflush_args *uap, register_t *retval) 506 { 507 /* { 508 syscallarg(void *) addr; 509 syscallarg(unsigned) nbytes; 510 syscallarg(int) flag; 511 } */ 512 struct proc *p = l->l_proc; 513 vaddr_t va = (vaddr_t)SCARG(uap, addr); 514 int nbytes = SCARG(uap, nbytes); 515 int whichcache = SCARG(uap, whichcache); 516 517 return mips_user_cacheflush(p, va, nbytes, whichcache); 518 } 519 520 521 int 522 ultrix_sys_cachectl(struct lwp *l, const struct ultrix_sys_cachectl_args *uap, register_t *retval) 523 { 524 /* { 525 syscallarg(void *) addr; 526 syscallarg(int) nbytes; 527 syscallarg(int) cacheop; 528 } */ 529 struct proc *p = l->l_proc; 530 vaddr_t va = (vaddr_t)SCARG(uap, addr); 531 int nbytes = SCARG(uap, nbytes); 532 int cacheop = SCARG(uap, cacheop); 533 534 return mips_user_cachectl(p, va, nbytes, cacheop); 535 } 536 537 #endif /* __mips */ 538 539 540 int 541 ultrix_sys_exportfs(struct lwp *l, const struct ultrix_sys_exportfs_args *uap, register_t *retval) 542 { 543 544 /* 545 * XXX: should perhaps translate into a mount(2) 546 * with MOUNT_EXPORT? 547 */ 548 return 0; 549 } 550 551 int 552 ultrix_sys_sigpending(struct lwp *l, const struct ultrix_sys_sigpending_args *uap, register_t *retval) 553 { 554 sigset_t ss; 555 int mask; 556 557 sigpending1(l, &ss); 558 mask = ss.__bits[0]; 559 560 return copyout(&mask, SCARG(uap, mask), sizeof(int)); 561 } 562 563 int 564 ultrix_sys_sigreturn(struct lwp *l, const struct ultrix_sys_sigreturn_args *uap, register_t *retval) 565 { 566 /* struct sigcontext13 is close enough to Ultrix */ 567 struct compat_13_sys_sigreturn_args ap; 568 569 memset(&ap, 0, sizeof(ap)); 570 SCARG(&ap, sigcntxp) = (void *)SCARG(uap, sigcntxp); 571 572 return compat_13_sys_sigreturn(l, &ap, retval); 573 } 574 575 int 576 ultrix_sys_sigcleanup(struct lwp *l, const struct ultrix_sys_sigcleanup_args *uap, register_t *retval) 577 { 578 579 /* struct sigcontext13 is close enough to Ultrix */ 580 struct compat_13_sys_sigreturn_args ap; 581 582 memset(&ap, 0, sizeof(ap)); 583 SCARG(&ap, sigcntxp) = (void *)SCARG(uap, sigcntxp); 584 585 return compat_13_sys_sigreturn(l, &ap, retval); 586 } 587 588 int 589 ultrix_sys_sigsuspend(struct lwp *l, const struct ultrix_sys_sigsuspend_args *uap, register_t *retval) 590 { 591 int mask = SCARG(uap, mask); 592 sigset_t ss; 593 594 ss.__bits[0] = mask; 595 ss.__bits[1] = 0; 596 ss.__bits[2] = 0; 597 ss.__bits[3] = 0; 598 599 return sigsuspend1(l, &ss); 600 } 601 602 #define ULTRIX_SV_ONSTACK 0x0001 /* take signal on signal stack */ 603 #define ULTRIX_SV_INTERRUPT 0x0002 /* do not restart system on signal return */ 604 #define ULTRIX_SV_OLDSIG 0x1000 /* Emulate old signal() for POSIX */ 605 606 int 607 ultrix_sys_sigvec(struct lwp *l, const struct ultrix_sys_sigvec_args *uap, register_t *retval) 608 { 609 struct sigvec nsv, osv; 610 struct sigaction nsa, osa; 611 int error; 612 613 if (SCARG(uap, nsv)) { 614 error = copyin(SCARG(uap, nsv), &nsv, sizeof(nsv)); 615 if (error) 616 return error; 617 nsa.sa_handler = nsv.sv_handler; 618 #if 0 /* documentation */ 619 /* ONSTACK is identical */ 620 nsa.sa_flags = nsv.sv_flags & ULTRIX_SV_ONSTACK; 621 if ((nsv.sv_flags & ULTRIX_SV_OLDSIG) 622 /* old signal() - always restart */ 623 || (!(nsv.sv_flags & ULTRIX_SV_INTERRUPT)) 624 /* inverted meaning (same bit) */ 625 ) 626 nsa.sa_flags |= SA_RESTART; 627 #else /* optimized - assuming ULTRIX_SV_OLDSIG=>!ULTRIX_SV_INTERRUPT */ 628 nsa.sa_flags = nsv.sv_flags & ~ULTRIX_SV_OLDSIG; 629 nsa.sa_flags ^= SA_RESTART; 630 #endif 631 native_sigset13_to_sigset(&nsv.sv_mask, &nsa.sa_mask); 632 } 633 error = sigaction1(l, SCARG(uap, signum), 634 SCARG(uap, nsv) ? &nsa : 0, SCARG(uap, osv) ? &osa : 0, 635 NULL, 0); 636 if (error) 637 return error; 638 if (SCARG(uap, osv)) { 639 memset(&osv, 0, sizeof(osv)); 640 osv.sv_handler = osa.sa_handler; 641 osv.sv_flags = osa.sa_flags ^ SA_RESTART; 642 osv.sv_flags &= (ULTRIX_SV_ONSTACK | ULTRIX_SV_INTERRUPT); 643 native_sigset_to_sigset13(&osa.sa_mask, &osv.sv_mask); 644 error = copyout(&osv, SCARG(uap, osv), sizeof(osv)); 645 if (error) 646 return error; 647 } 648 return 0; 649 } 650 651 int 652 ultrix_sys_shmsys(struct lwp *l, const struct ultrix_sys_shmsys_args *uap, register_t *retval) 653 { 654 655 #ifdef SYSVSHM 656 /* Ultrix SVSHM weirdness: */ 657 struct sys_shmat_args shmat_args; 658 struct compat_14_sys_shmctl_args shmctl_args; 659 struct sys_shmdt_args shmdt_args; 660 struct sys_shmget_args shmget_args; 661 662 663 switch (SCARG(uap, shmop)) { 664 case 0: /* Ultrix shmat() */ 665 memset(&shmat_args, 0, sizeof(shmat_args)); 666 SCARG(&shmat_args, shmid) = SCARG(uap, a2); 667 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a3); 668 SCARG(&shmat_args, shmflg) = SCARG(uap, a4); 669 return sys_shmat(l, &shmat_args, retval); 670 671 case 1: /* Ultrix shmctl() */ 672 memset(&shmctl_args, 0, sizeof(shmctl_args)); 673 SCARG(&shmctl_args, shmid) = SCARG(uap, a2); 674 SCARG(&shmctl_args, cmd) = SCARG(uap, a3); 675 SCARG(&shmctl_args, buf) = (struct shmid_ds14 *)SCARG(uap, a4); 676 return compat_14_sys_shmctl(l, &shmctl_args, retval); 677 678 case 2: /* Ultrix shmdt() */ 679 memset(&shmdt_args, 0, sizeof(shmdt_args)); 680 SCARG(&shmdt_args, shmaddr) = (void *)SCARG(uap, a2); 681 return sys_shmdt(l, &shmdt_args, retval); 682 683 case 3: /* Ultrix shmget() */ 684 memset(&shmget_args, 0, sizeof(shmget_args)); 685 SCARG(&shmget_args, key) = SCARG(uap, a2); 686 SCARG(&shmget_args, size) = SCARG(uap, a3); 687 SCARG(&shmget_args, shmflg) = SCARG(uap, a4) 688 & (IPC_CREAT|IPC_EXCL|IPC_NOWAIT); 689 return sys_shmget(l, &shmget_args, retval); 690 691 default: 692 return EINVAL; 693 } 694 #else 695 return EOPNOTSUPP; 696 #endif /* SYSVSHM */ 697 } 698 699 static int 700 ultrix_to_bsd_flock(struct ultrix_flock *ufl, struct flock *fl) 701 { 702 703 memset(fl, 0, sizeof(*fl)); 704 705 fl->l_start = ufl->l_start; 706 fl->l_len = ufl->l_len; 707 fl->l_pid = ufl->l_pid; 708 fl->l_whence = ufl->l_whence; 709 710 switch (ufl->l_type) { 711 case ULTRIX_F_RDLCK: 712 fl->l_type = F_RDLCK; 713 break; 714 case ULTRIX_F_WRLCK: 715 fl->l_type = F_WRLCK; 716 break; 717 case ULTRIX_F_UNLCK: 718 fl->l_type = F_UNLCK; 719 break; 720 default: 721 return EINVAL; 722 } 723 724 return 0; 725 } 726 727 static void 728 bsd_to_ultrix_flock(struct flock *fl, struct ultrix_flock *ufl) 729 { 730 731 memset(ufl, 0, sizeof(*ufl)); 732 733 ufl->l_start = fl->l_start; 734 ufl->l_len = fl->l_len; 735 ufl->l_pid = fl->l_pid; 736 ufl->l_whence = fl->l_whence; 737 738 switch (fl->l_type) { 739 case F_RDLCK: 740 ufl->l_type = ULTRIX_F_RDLCK; 741 break; 742 case F_WRLCK: 743 ufl->l_type = ULTRIX_F_WRLCK; 744 break; 745 case F_UNLCK: 746 ufl->l_type = ULTRIX_F_UNLCK; 747 break; 748 } 749 } 750 751 int 752 ultrix_sys_fcntl(struct lwp *l, const struct ultrix_sys_fcntl_args *uap, register_t *retval) 753 { 754 int error; 755 struct ultrix_flock ufl; 756 struct flock fl; 757 758 switch (SCARG(uap, cmd)) { 759 case F_GETLK: 760 case F_SETLK: 761 case F_SETLKW: 762 error = copyin(SCARG(uap, arg), &ufl, sizeof(ufl)); 763 if (error) 764 return error; 765 error = ultrix_to_bsd_flock(&ufl, &fl); 766 if (error) 767 return error; 768 error = do_fcntl_lock(SCARG(uap, fd), SCARG(uap, cmd), &fl); 769 if (SCARG(uap, cmd) != F_GETLK || error != 0) 770 return error; 771 bsd_to_ultrix_flock(&fl, &ufl); 772 return copyout(&ufl, SCARG(uap, arg), sizeof(ufl)); 773 774 default: 775 break; 776 } 777 778 return sys_fcntl(l, (const void *)uap, retval); 779 } 780
Indexes created Sun Oct 25 00:26:45 UTC 2026