1 /* $NetBSD: ultrix_misc.c,v 1.127 2023/08/03 08:32:52 mrg 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 1.127 2023/08/03 08:32:52 mrg 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 SCARG(&ap, pid) = SCARG(uap, pid); 239 SCARG(&ap, status) = SCARG(uap, status); 240 SCARG(&ap, options) = SCARG(uap, options); 241 SCARG(&ap, rusage) = 0; 242 243 return compat_50_sys_wait4(l, &ap, retval); 244 } 245 246 int 247 ultrix_sys_wait3(struct lwp *l, const struct ultrix_sys_wait3_args *uap, register_t *retval) 248 { 249 struct compat_50_sys_wait4_args ap; 250 251 SCARG(&ap, pid) = -1; 252 SCARG(&ap, status) = SCARG(uap, status); 253 SCARG(&ap, options) = SCARG(uap, options); 254 SCARG(&ap, rusage) = SCARG(uap, rusage); 255 256 return compat_50_sys_wait4(l, &ap, retval); 257 } 258 259 /* 260 * Ultrix binaries pass in FD_MAX as the first arg to select(). 261 * On Ultrix, FD_MAX is 4096, which is more than the NetBSD sys_select() 262 * can handle. 263 * Since we can't have more than the (native) FD_MAX descriptors open, 264 * limit nfds to at most FD_MAX. 265 */ 266 int 267 ultrix_sys_select(struct lwp *l, const struct ultrix_sys_select_args *uap, register_t *retval) 268 { 269 struct timeval50 atv; 270 int error; 271 struct compat_50_sys_select_args ap; 272 273 /* Limit number of FDs selected on to the native maximum */ 274 275 if (SCARG(uap, nd) > FD_SETSIZE) 276 SCARG(&ap, nd) = FD_SETSIZE; 277 else 278 SCARG(&ap, nd) = SCARG(uap, nd); 279 280 SCARG(&ap, in) = SCARG(uap, in); 281 SCARG(&ap, ou) = SCARG(uap, ou); 282 SCARG(&ap, ex) = SCARG(uap, ex); 283 SCARG(&ap, tv) = SCARG(uap, tv); 284 /* Check for negative timeval */ 285 if (SCARG(&ap, tv)) { 286 error = copyin(SCARG(uap, tv), &atv, sizeof(atv)); 287 if (error) 288 goto done; 289 #ifdef DEBUG 290 /* Ultrix clients sometimes give negative timeouts? */ 291 if (atv.tv_sec < 0 || atv.tv_usec < 0) 292 printf("ultrix select( %ld, %ld): negative timeout\n", 293 atv.tv_sec, atv.tv_usec); 294 #endif 295 296 } 297 error = compat_50_sys_select(l, &ap, retval); 298 if (error == EINVAL) 299 printf("ultrix select: bad args?\n"); 300 301 done: 302 return error; 303 } 304 305 306 #define SUN__MAP_NEW 0x80000000 /* if not, old mmap & cannot handle */ 307 308 int 309 ultrix_sys_mmap(struct lwp *l, const struct ultrix_sys_mmap_args *uap, register_t *retval) 310 { 311 struct sys_mmap_args ouap; 312 313 /* 314 * Verify the arguments. 315 */ 316 if (SCARG(uap, prot) & ~(PROT_READ|PROT_WRITE|PROT_EXEC)) 317 return EINVAL; /* XXX still needed? */ 318 319 if ((SCARG(uap, flags) & SUN__MAP_NEW) == 0) 320 return EINVAL; 321 322 SCARG(&ouap, flags) = SCARG(uap, flags) & ~SUN__MAP_NEW; 323 SCARG(&ouap, addr) = SCARG(uap, addr); 324 SCARG(&ouap, len) = SCARG(uap, len); 325 SCARG(&ouap, prot) = SCARG(uap, prot); 326 SCARG(&ouap, fd) = SCARG(uap, fd); 327 SCARG(&ouap, pos) = SCARG(uap, pos); 328 329 return sys_mmap(l, &ouap, retval); 330 } 331 332 int 333 ultrix_sys_setsockopt(struct lwp *l, const struct ultrix_sys_setsockopt_args *uap, register_t *retval) 334 { 335 struct sockopt sopt; 336 struct socket *so; 337 int error; 338 struct sys_setsockopt_args ap; 339 340 SCARG(&ap, s) = SCARG(uap, s); 341 SCARG(&ap, level) = SCARG(uap, level); 342 SCARG(&ap, name) = SCARG(uap, name); 343 SCARG(&ap, val) = SCARG(uap, val); 344 SCARG(&ap, valsize) = SCARG(uap, valsize); 345 346 /* fd_getsock() will use the descriptor for us */ 347 if ((error = fd_getsock(SCARG(&ap, s), &so)) != 0) 348 return error; 349 #define SO_DONTLINGER (~SO_LINGER) 350 if (SCARG(&ap, name) == SO_DONTLINGER) { 351 struct linger lg; 352 353 lg.l_onoff = 0; 354 error = so_setsockopt(l, so, SCARG(&ap, level), SO_LINGER, 355 &lg, sizeof(lg)); 356 goto out; 357 } 358 if (SCARG(&ap, level) == IPPROTO_IP) { 359 #define EMUL_IP_MULTICAST_IF 2 360 #define EMUL_IP_MULTICAST_TTL 3 361 #define EMUL_IP_MULTICAST_LOOP 4 362 #define EMUL_IP_ADD_MEMBERSHIP 5 363 #define EMUL_IP_DROP_MEMBERSHIP 6 364 static const int ipoptxlat[] = { 365 IP_MULTICAST_IF, 366 IP_MULTICAST_TTL, 367 IP_MULTICAST_LOOP, 368 IP_ADD_MEMBERSHIP, 369 IP_DROP_MEMBERSHIP 370 }; 371 if (SCARG(&ap, name) >= EMUL_IP_MULTICAST_IF && 372 SCARG(&ap, name) <= EMUL_IP_DROP_MEMBERSHIP) { 373 SCARG(&ap, name) = 374 ipoptxlat[SCARG(&ap, name) - EMUL_IP_MULTICAST_IF]; 375 } 376 } 377 if (SCARG(&ap, valsize) > MLEN) { 378 error = EINVAL; 379 goto out; 380 } 381 sockopt_init(&sopt, SCARG(&ap, level), SCARG(&ap, name), 382 SCARG(&ap, valsize)); 383 if (SCARG(&ap, val)) { 384 error = copyin(SCARG(&ap, val), sopt.sopt_data, 385 (u_int)SCARG(&ap, valsize)); 386 } 387 if (error == 0) 388 error = sosetopt(so, &sopt); 389 sockopt_destroy(&sopt); 390 out: 391 fd_putfile(SCARG(uap, s)); 392 return error; 393 } 394 395 #define ULTRIX__SYS_NMLN 32 396 397 struct ultrix_utsname { 398 char sysname[ULTRIX__SYS_NMLN]; 399 char nodename[ULTRIX__SYS_NMLN]; 400 char release[ULTRIX__SYS_NMLN]; 401 char version[ULTRIX__SYS_NMLN]; 402 char machine[ULTRIX__SYS_NMLN]; 403 }; 404 405 int 406 ultrix_sys_uname(struct lwp *l, const struct ultrix_sys_uname_args *uap, register_t *retval) 407 { 408 struct ultrix_utsname sut; 409 const char *cp; 410 char *dp, *ep; 411 412 memset(&sut, 0, sizeof(sut)); 413 414 strncpy(sut.sysname, ostype, sizeof(sut.sysname) - 1); 415 strncpy(sut.nodename, hostname, sizeof(sut.nodename) - 1); 416 strncpy(sut.release, osrelease, sizeof(sut.release) - 1); 417 dp = sut.version; 418 ep = &sut.version[sizeof(sut.version) - 1]; 419 for (cp = version; *cp && *cp != '('; cp++) 420 ; 421 for (cp++; *cp && *cp != ')' && dp < ep; cp++) 422 *dp++ = *cp; 423 for (; *cp && *cp != '#'; cp++) 424 ; 425 for (; *cp && *cp != ':' && dp < ep; cp++) 426 *dp++ = *cp; 427 *dp = '\0'; 428 strncpy(sut.machine, machine, sizeof(sut.machine) - 1); 429 430 return copyout(&sut, SCARG(uap, name), sizeof(sut)); 431 } 432 433 int 434 ultrix_sys_setpgrp(struct lwp *l, const struct ultrix_sys_setpgrp_args *uap, register_t *retval) 435 { 436 struct proc *p = l->l_proc; 437 struct sys_setpgid_args ap; 438 439 SCARG(&ap, pid) = SCARG(uap, pid); 440 SCARG(&ap, pgid) = SCARG(uap, pgid); 441 /* 442 * difference to our setpgid call is to include backwards 443 * compatibility to pre-setsid() binaries. Do setsid() 444 * instead of setpgid() in those cases where the process 445 * tries to create a new session the old way. 446 */ 447 if (!SCARG(&ap, pgid) && 448 (!SCARG(&ap, pid) || SCARG(&ap, pid) == p->p_pid)) 449 return sys_setsid(l, &ap, retval); 450 else 451 return sys_setpgid(l, &ap, retval); 452 } 453 454 struct ultrix_ustat { 455 daddr_t f_tfree; /* total free */ 456 uint32_t f_tinode; /* total inodes free */ 457 char f_fname[6]; /* filsys name */ 458 char f_fpack[6]; /* filsys pack name */ 459 }; 460 461 int 462 ultrix_sys_ustat(struct lwp *l, const struct ultrix_sys_ustat_args *uap, register_t *retval) 463 { 464 struct ultrix_ustat us; 465 int error; 466 467 memset(&us, 0, sizeof us); 468 469 /* 470 * XXX: should set f_tfree and f_tinode at least 471 * How do we translate dev -> fstat? (and then to ultrix_ustat) 472 */ 473 474 if ((error = copyout(&us, SCARG(uap, buf), sizeof us)) != 0) 475 return error; 476 return 0; 477 } 478 479 int 480 ultrix_sys_quotactl(struct lwp *l, const struct ultrix_sys_quotactl_args *uap, register_t *retval) 481 { 482 483 return EINVAL; 484 } 485 486 int 487 ultrix_sys_vhangup(struct lwp *l, const void *uap, register_t *retval) 488 { 489 490 return 0; 491 } 492 493 494 /* 495 * RISC Ultrix cache control syscalls 496 */ 497 #ifdef __mips 498 int 499 ultrix_sys_cacheflush(struct lwp *l, const struct ultrix_sys_cacheflush_args *uap, register_t *retval) 500 { 501 /* { 502 syscallarg(void *) addr; 503 syscallarg(unsigned) nbytes; 504 syscallarg(int) flag; 505 } */ 506 struct proc *p = l->l_proc; 507 vaddr_t va = (vaddr_t)SCARG(uap, addr); 508 int nbytes = SCARG(uap, nbytes); 509 int whichcache = SCARG(uap, whichcache); 510 511 return mips_user_cacheflush(p, va, nbytes, whichcache); 512 } 513 514 515 int 516 ultrix_sys_cachectl(struct lwp *l, const struct ultrix_sys_cachectl_args *uap, register_t *retval) 517 { 518 /* { 519 syscallarg(void *) addr; 520 syscallarg(int) nbytes; 521 syscallarg(int) cacheop; 522 } */ 523 struct proc *p = l->l_proc; 524 vaddr_t va = (vaddr_t)SCARG(uap, addr); 525 int nbytes = SCARG(uap, nbytes); 526 int cacheop = SCARG(uap, cacheop); 527 528 return mips_user_cachectl(p, va, nbytes, cacheop); 529 } 530 531 #endif /* __mips */ 532 533 534 int 535 ultrix_sys_exportfs(struct lwp *l, const struct ultrix_sys_exportfs_args *uap, register_t *retval) 536 { 537 538 /* 539 * XXX: should perhaps translate into a mount(2) 540 * with MOUNT_EXPORT? 541 */ 542 return 0; 543 } 544 545 int 546 ultrix_sys_sigpending(struct lwp *l, const struct ultrix_sys_sigpending_args *uap, register_t *retval) 547 { 548 sigset_t ss; 549 int mask; 550 551 sigpending1(l, &ss); 552 mask = ss.__bits[0]; 553 554 return copyout(&mask, SCARG(uap, mask), sizeof(int)); 555 } 556 557 int 558 ultrix_sys_sigreturn(struct lwp *l, const struct ultrix_sys_sigreturn_args *uap, register_t *retval) 559 { 560 /* struct sigcontext13 is close enough to Ultrix */ 561 struct compat_13_sys_sigreturn_args ap; 562 563 SCARG(&ap, sigcntxp) = (void *)SCARG(uap, sigcntxp); 564 565 return compat_13_sys_sigreturn(l, &ap, retval); 566 } 567 568 int 569 ultrix_sys_sigcleanup(struct lwp *l, const struct ultrix_sys_sigcleanup_args *uap, register_t *retval) 570 { 571 572 /* struct sigcontext13 is close enough to Ultrix */ 573 struct compat_13_sys_sigreturn_args ap; 574 575 SCARG(&ap, sigcntxp) = (void *)SCARG(uap, sigcntxp); 576 577 return compat_13_sys_sigreturn(l, &ap, retval); 578 } 579 580 int 581 ultrix_sys_sigsuspend(struct lwp *l, const struct ultrix_sys_sigsuspend_args *uap, register_t *retval) 582 { 583 int mask = SCARG(uap, mask); 584 sigset_t ss; 585 586 ss.__bits[0] = mask; 587 ss.__bits[1] = 0; 588 ss.__bits[2] = 0; 589 ss.__bits[3] = 0; 590 591 return sigsuspend1(l, &ss); 592 } 593 594 #define ULTRIX_SV_ONSTACK 0x0001 /* take signal on signal stack */ 595 #define ULTRIX_SV_INTERRUPT 0x0002 /* do not restart system on signal return */ 596 #define ULTRIX_SV_OLDSIG 0x1000 /* Emulate old signal() for POSIX */ 597 598 int 599 ultrix_sys_sigvec(struct lwp *l, const struct ultrix_sys_sigvec_args *uap, register_t *retval) 600 { 601 struct sigvec nsv, osv; 602 struct sigaction nsa, osa; 603 int error; 604 605 if (SCARG(uap, nsv)) { 606 error = copyin(SCARG(uap, nsv), &nsv, sizeof(nsv)); 607 if (error) 608 return error; 609 nsa.sa_handler = nsv.sv_handler; 610 #if 0 /* documentation */ 611 /* ONSTACK is identical */ 612 nsa.sa_flags = nsv.sv_flags & ULTRIX_SV_ONSTACK; 613 if ((nsv.sv_flags & ULTRIX_SV_OLDSIG) 614 /* old signal() - always restart */ 615 || (!(nsv.sv_flags & ULTRIX_SV_INTERRUPT)) 616 /* inverted meaning (same bit) */ 617 ) 618 nsa.sa_flags |= SA_RESTART; 619 #else /* optimized - assuming ULTRIX_SV_OLDSIG=>!ULTRIX_SV_INTERRUPT */ 620 nsa.sa_flags = nsv.sv_flags & ~ULTRIX_SV_OLDSIG; 621 nsa.sa_flags ^= SA_RESTART; 622 #endif 623 native_sigset13_to_sigset(&nsv.sv_mask, &nsa.sa_mask); 624 } 625 error = sigaction1(l, SCARG(uap, signum), 626 SCARG(uap, nsv) ? &nsa : 0, SCARG(uap, osv) ? &osa : 0, 627 NULL, 0); 628 if (error) 629 return error; 630 if (SCARG(uap, osv)) { 631 memset(&osv, 0, sizeof(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 = {0}; 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 memset(fl, 0, sizeof(*fl)); 692 693 fl->l_start = ufl->l_start; 694 fl->l_len = ufl->l_len; 695 fl->l_pid = ufl->l_pid; 696 fl->l_whence = ufl->l_whence; 697 698 switch (ufl->l_type) { 699 case ULTRIX_F_RDLCK: 700 fl->l_type = F_RDLCK; 701 break; 702 case ULTRIX_F_WRLCK: 703 fl->l_type = F_WRLCK; 704 break; 705 case ULTRIX_F_UNLCK: 706 fl->l_type = F_UNLCK; 707 break; 708 default: 709 return EINVAL; 710 } 711 712 return 0; 713 } 714 715 static void 716 bsd_to_ultrix_flock(struct flock *fl, struct ultrix_flock *ufl) 717 { 718 719 memset(ufl, 0, sizeof(*ufl)); 720 721 ufl->l_start = fl->l_start; 722 ufl->l_len = fl->l_len; 723 ufl->l_pid = fl->l_pid; 724 ufl->l_whence = fl->l_whence; 725 726 switch (fl->l_type) { 727 case F_RDLCK: 728 ufl->l_type = ULTRIX_F_RDLCK; 729 break; 730 case F_WRLCK: 731 ufl->l_type = ULTRIX_F_WRLCK; 732 break; 733 case F_UNLCK: 734 ufl->l_type = ULTRIX_F_UNLCK; 735 break; 736 } 737 } 738 739 int 740 ultrix_sys_fcntl(struct lwp *l, const struct ultrix_sys_fcntl_args *uap, register_t *retval) 741 { 742 int error; 743 struct ultrix_flock ufl; 744 struct flock fl; 745 746 switch (SCARG(uap, cmd)) { 747 case F_GETLK: 748 case F_SETLK: 749 case F_SETLKW: 750 error = copyin(SCARG(uap, arg), &ufl, sizeof(ufl)); 751 if (error) 752 return error; 753 error = ultrix_to_bsd_flock(&ufl, &fl); 754 if (error) 755 return error; 756 error = do_fcntl_lock(SCARG(uap, fd), SCARG(uap, cmd), &fl); 757 if (SCARG(uap, cmd) != F_GETLK || error != 0) 758 return error; 759 bsd_to_ultrix_flock(&fl, &ufl); 760 return copyout(&ufl, SCARG(uap, arg), sizeof(ufl)); 761 762 default: 763 break; 764 } 765 766 return sys_fcntl(l, (const void *)uap, retval); 767 } 768
Indexes created Sat Sep 20 22:09:52 GMT 2025