ultrix_misc.c revision 1.120
1 /* $NetBSD: ultrix_misc.c,v 1.120 2010/03/03 11:02:34 pooka 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 1.120 2010/03/03 11:02:34 pooka 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 "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 #ifdef __mips 173 sendsig_sigcontext, 174 #else /* vax */ 175 sendsig, 176 #endif 177 trapsignal, 178 NULL, 179 ultrix_sigcode, 180 ultrix_esigcode, 181 &emul_ultrix_object, 182 setregs, 183 NULL, 184 NULL, 185 NULL, 186 NULL, 187 NULL, 188 #ifdef __HAVE_SYSCALL_INTERN 189 syscall_intern, 190 #else 191 syscall, 192 #endif 193 NULL, 194 NULL, 195 196 uvm_default_mapaddr, 197 NULL, 198 NULL, 199 0, 200 NULL 201 }; 202 203 #define GSI_PROG_ENV 1 204 205 int 206 ultrix_sys_getsysinfo(struct lwp *l, const struct ultrix_sys_getsysinfo_args *uap, register_t *retval) 207 { 208 static short progenv = 0; 209 210 switch (SCARG(uap, op)) { 211 /* operations implemented: */ 212 case GSI_PROG_ENV: 213 if (SCARG(uap, nbytes) < sizeof(short)) 214 return EINVAL; 215 *retval = 1; 216 return copyout(&progenv, SCARG(uap, buffer), sizeof(progenv)); 217 default: 218 *retval = 0; /* info unavail */ 219 return 0; 220 } 221 } 222 223 int 224 ultrix_sys_setsysinfo(struct lwp *l, const struct ultrix_sys_setsysinfo_args *uap, register_t *retval) 225 { 226 227 *retval = 0; 228 return 0; 229 } 230 231 int 232 ultrix_sys_waitpid(struct lwp *l, const struct ultrix_sys_waitpid_args *uap, register_t *retval) 233 { 234 struct compat_50_sys_wait4_args ap; 235 236 SCARG(&ap, pid) = SCARG(uap, pid); 237 SCARG(&ap, status) = SCARG(uap, status); 238 SCARG(&ap, options) = SCARG(uap, options); 239 SCARG(&ap, rusage) = 0; 240 241 return compat_50_sys_wait4(l, &ap, retval); 242 } 243 244 int 245 ultrix_sys_wait3(struct lwp *l, const struct ultrix_sys_wait3_args *uap, register_t *retval) 246 { 247 struct compat_50_sys_wait4_args ap; 248 249 SCARG(&ap, pid) = -1; 250 SCARG(&ap, status) = SCARG(uap, status); 251 SCARG(&ap, options) = SCARG(uap, options); 252 SCARG(&ap, rusage) = SCARG(uap, rusage); 253 254 return compat_50_sys_wait4(l, &ap, retval); 255 } 256 257 /* 258 * Ultrix binaries pass in FD_MAX as the first arg to select(). 259 * On Ultrix, FD_MAX is 4096, which is more than the NetBSD sys_select() 260 * can handle. 261 * Since we can't have more than the (native) FD_MAX descriptors open, 262 * limit nfds to at most FD_MAX. 263 */ 264 int 265 ultrix_sys_select(struct lwp *l, const struct ultrix_sys_select_args *uap, register_t *retval) 266 { 267 struct timeval50 atv; 268 int error; 269 struct compat_50_sys_select_args ap; 270 271 /* Limit number of FDs selected on to the native maximum */ 272 273 if (SCARG(uap, nd) > FD_SETSIZE) 274 SCARG(&ap, nd) = FD_SETSIZE; 275 else 276 SCARG(&ap, nd) = SCARG(uap, nd); 277 278 SCARG(&ap, in) = SCARG(uap, in); 279 SCARG(&ap, ou) = SCARG(uap, ou); 280 SCARG(&ap, ex) = SCARG(uap, ex); 281 SCARG(&ap, tv) = SCARG(uap, tv); 282 /* Check for negative timeval */ 283 if (SCARG(&ap, tv)) { 284 error = copyin(SCARG(uap, tv), &atv, sizeof(atv)); 285 if (error) 286 goto done; 287 #ifdef DEBUG 288 /* Ultrix clients sometimes give negative timeouts? */ 289 if (atv.tv_sec < 0 || atv.tv_usec < 0) 290 printf("ultrix select( %ld, %ld): negative timeout\n", 291 atv.tv_sec, atv.tv_usec); 292 #endif 293 294 } 295 error = compat_50_sys_select(l, &ap, retval); 296 if (error == EINVAL) 297 printf("ultrix select: bad args?\n"); 298 299 done: 300 return error; 301 } 302 303 304 #define SUN__MAP_NEW 0x80000000 /* if not, old mmap & cannot handle */ 305 306 int 307 ultrix_sys_mmap(struct lwp *l, const struct ultrix_sys_mmap_args *uap, register_t *retval) 308 { 309 struct sys_mmap_args ouap; 310 311 /* 312 * Verify the arguments. 313 */ 314 if (SCARG(uap, prot) & ~(PROT_READ|PROT_WRITE|PROT_EXEC)) 315 return EINVAL; /* XXX still needed? */ 316 317 if ((SCARG(uap, flags) & SUN__MAP_NEW) == 0) 318 return EINVAL; 319 320 SCARG(&ouap, flags) = SCARG(uap, flags) & ~SUN__MAP_NEW; 321 SCARG(&ouap, addr) = SCARG(uap, addr); 322 SCARG(&ouap, len) = SCARG(uap, len); 323 SCARG(&ouap, prot) = SCARG(uap, prot); 324 SCARG(&ouap, fd) = SCARG(uap, fd); 325 SCARG(&ouap, pos) = SCARG(uap, pos); 326 327 return sys_mmap(l, &ouap, retval); 328 } 329 330 int 331 ultrix_sys_setsockopt(struct lwp *l, const struct ultrix_sys_setsockopt_args *uap, register_t *retval) 332 { 333 struct sockopt sopt; 334 struct socket *so; 335 int error; 336 struct sys_setsockopt_args ap; 337 338 SCARG(&ap, s) = SCARG(uap, s); 339 SCARG(&ap, level) = SCARG(uap, level); 340 SCARG(&ap, name) = SCARG(uap, name); 341 SCARG(&ap, val) = SCARG(uap, val); 342 SCARG(&ap, valsize) = SCARG(uap, valsize); 343 344 /* fd_getsock() will use the descriptor for us */ 345 if ((error = fd_getsock(SCARG(&ap, s), &so)) != 0) 346 return error; 347 #define SO_DONTLINGER (~SO_LINGER) 348 if (SCARG(&ap, name) == SO_DONTLINGER) { 349 struct linger lg; 350 351 lg.l_onoff = 0; 352 error = so_setsockopt(l, so, SCARG(&ap, level), SO_LINGER, 353 &lg, sizeof(lg)); 354 goto out; 355 } 356 if (SCARG(&ap, 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(&ap, name) >= EMUL_IP_MULTICAST_IF && 370 SCARG(&ap, name) <= EMUL_IP_DROP_MEMBERSHIP) { 371 SCARG(&ap, name) = 372 ipoptxlat[SCARG(&ap, name) - EMUL_IP_MULTICAST_IF]; 373 } 374 } 375 if (SCARG(&ap, valsize) > MLEN) { 376 error = EINVAL; 377 goto out; 378 } 379 sockopt_init(&sopt, SCARG(&ap, level), SCARG(&ap, name), 380 SCARG(&ap, valsize)); 381 if (SCARG(&ap, val)) { 382 error = copyin(SCARG(&ap, val), sopt.sopt_data, 383 (u_int)SCARG(&ap, valsize)); 384 } 385 if (error == 0) 386 error = sosetopt(so, &sopt); 387 sockopt_destroy(&sopt); 388 out: 389 fd_putfile(SCARG(uap, s)); 390 return error; 391 } 392 393 #define ULTRIX__SYS_NMLN 32 394 395 struct ultrix_utsname { 396 char sysname[ULTRIX__SYS_NMLN]; 397 char nodename[ULTRIX__SYS_NMLN]; 398 char release[ULTRIX__SYS_NMLN]; 399 char version[ULTRIX__SYS_NMLN]; 400 char machine[ULTRIX__SYS_NMLN]; 401 }; 402 403 int 404 ultrix_sys_uname(struct lwp *l, const struct ultrix_sys_uname_args *uap, register_t *retval) 405 { 406 struct ultrix_utsname sut; 407 const char *cp; 408 char *dp, *ep; 409 410 memset(&sut, 0, sizeof(sut)); 411 412 strncpy(sut.sysname, ostype, sizeof(sut.sysname) - 1); 413 strncpy(sut.nodename, hostname, sizeof(sut.nodename) - 1); 414 strncpy(sut.release, osrelease, sizeof(sut.release) - 1); 415 dp = sut.version; 416 ep = &sut.version[sizeof(sut.version) - 1]; 417 for (cp = version; *cp && *cp != '('; cp++) 418 ; 419 for (cp++; *cp && *cp != ')' && dp < ep; cp++) 420 *dp++ = *cp; 421 for (; *cp && *cp != '#'; cp++) 422 ; 423 for (; *cp && *cp != ':' && dp < ep; cp++) 424 *dp++ = *cp; 425 *dp = '\0'; 426 strncpy(sut.machine, machine, sizeof(sut.machine) - 1); 427 428 return copyout(&sut, SCARG(uap, name), sizeof(sut)); 429 } 430 431 int 432 ultrix_sys_setpgrp(struct lwp *l, const struct ultrix_sys_setpgrp_args *uap, register_t *retval) 433 { 434 struct proc *p = l->l_proc; 435 struct sys_setpgid_args ap; 436 437 SCARG(&ap, pid) = SCARG(uap, pid); 438 SCARG(&ap, pgid) = SCARG(uap, pgid); 439 /* 440 * difference to our setpgid call is to include backwards 441 * compatibility to pre-setsid() binaries. Do setsid() 442 * instead of setpgid() in those cases where the process 443 * tries to create a new session the old way. 444 */ 445 if (!SCARG(&ap, pgid) && 446 (!SCARG(&ap, pid) || SCARG(&ap, pid) == p->p_pid)) 447 return sys_setsid(l, &ap, retval); 448 else 449 return sys_setpgid(l, &ap, retval); 450 } 451 452 struct ultrix_ustat { 453 daddr_t f_tfree; /* total free */ 454 uint32_t f_tinode; /* total inodes free */ 455 char f_fname[6]; /* filsys name */ 456 char f_fpack[6]; /* filsys pack name */ 457 }; 458 459 int 460 ultrix_sys_ustat(struct lwp *l, const struct ultrix_sys_ustat_args *uap, register_t *retval) 461 { 462 struct ultrix_ustat us; 463 int error; 464 465 memset(&us, 0, sizeof us); 466 467 /* 468 * XXX: should set f_tfree and f_tinode at least 469 * How do we translate dev -> fstat? (and then to ultrix_ustat) 470 */ 471 472 if ((error = copyout(&us, SCARG(uap, buf), sizeof us)) != 0) 473 return error; 474 return 0; 475 } 476 477 int 478 ultrix_sys_quotactl(struct lwp *l, const struct ultrix_sys_quotactl_args *uap, register_t *retval) 479 { 480 481 return EINVAL; 482 } 483 484 int 485 ultrix_sys_vhangup(struct lwp *l, const void *uap, register_t *retval) 486 { 487 488 return 0; 489 } 490 491 492 /* 493 * RISC Ultrix cache control syscalls 494 */ 495 #ifdef __mips 496 int 497 ultrix_sys_cacheflush(struct lwp *l, const struct ultrix_sys_cacheflush_args *uap, register_t *retval) 498 { 499 /* { 500 syscallarg(void *) addr; 501 syscallarg(unsigned) nbytes; 502 syscallarg(int) flag; 503 } */ 504 struct proc *p = l->l_proc; 505 vaddr_t va = (vaddr_t)SCARG(uap, addr); 506 int nbytes = SCARG(uap, nbytes); 507 int whichcache = SCARG(uap, whichcache); 508 509 return mips_user_cacheflush(p, va, nbytes, whichcache); 510 } 511 512 513 int 514 ultrix_sys_cachectl(struct lwp *l, const struct ultrix_sys_cachectl_args *uap, register_t *retval) 515 { 516 /* { 517 syscallarg(void *) addr; 518 syscallarg(int) nbytes; 519 syscallarg(int) cacheop; 520 } */ 521 struct proc *p = l->l_proc; 522 vaddr_t va = (vaddr_t)SCARG(uap, addr); 523 int nbytes = SCARG(uap, nbytes); 524 int cacheop = SCARG(uap, cacheop); 525 526 return mips_user_cachectl(p, va, nbytes, cacheop); 527 } 528 529 #endif /* __mips */ 530 531 532 int 533 ultrix_sys_exportfs(struct lwp *l, const struct ultrix_sys_exportfs_args *uap, register_t *retval) 534 { 535 536 /* 537 * XXX: should perhaps translate into a mount(2) 538 * with MOUNT_EXPORT? 539 */ 540 return 0; 541 } 542 543 int 544 ultrix_sys_sigpending(struct lwp *l, const struct ultrix_sys_sigpending_args *uap, register_t *retval) 545 { 546 sigset_t ss; 547 int mask; 548 549 sigpending1(l, &ss); 550 mask = ss.__bits[0]; 551 552 return copyout(&mask, SCARG(uap, mask), sizeof(int)); 553 } 554 555 int 556 ultrix_sys_sigreturn(struct lwp *l, const struct ultrix_sys_sigreturn_args *uap, register_t *retval) 557 { 558 /* struct sigcontext13 is close enough to Ultrix */ 559 struct compat_13_sys_sigreturn_args ap; 560 561 SCARG(&ap, sigcntxp) = (void *)SCARG(uap, sigcntxp); 562 563 return compat_13_sys_sigreturn(l, &ap, retval); 564 } 565 566 int 567 ultrix_sys_sigcleanup(struct lwp *l, const struct ultrix_sys_sigcleanup_args *uap, register_t *retval) 568 { 569 570 /* struct sigcontext13 is close enough to Ultrix */ 571 struct compat_13_sys_sigreturn_args ap; 572 573 SCARG(&ap, sigcntxp) = (void *)SCARG(uap, sigcntxp); 574 575 return compat_13_sys_sigreturn(l, &ap, retval); 576 } 577 578 int 579 ultrix_sys_sigsuspend(struct lwp *l, const struct ultrix_sys_sigsuspend_args *uap, register_t *retval) 580 { 581 int mask = SCARG(uap, mask); 582 sigset_t ss; 583 584 ss.__bits[0] = mask; 585 ss.__bits[1] = 0; 586 ss.__bits[2] = 0; 587 ss.__bits[3] = 0; 588 589 return sigsuspend1(l, &ss); 590 } 591 592 #define ULTRIX_SV_ONSTACK 0x0001 /* take signal on signal stack */ 593 #define ULTRIX_SV_INTERRUPT 0x0002 /* do not restart system on signal return */ 594 #define ULTRIX_SV_OLDSIG 0x1000 /* Emulate old signal() for POSIX */ 595 596 int 597 ultrix_sys_sigvec(struct lwp *l, const struct ultrix_sys_sigvec_args *uap, register_t *retval) 598 { 599 struct sigvec nsv, osv; 600 struct sigaction nsa, osa; 601 int error; 602 603 if (SCARG(uap, nsv)) { 604 error = copyin(SCARG(uap, nsv), &nsv, sizeof(nsv)); 605 if (error) 606 return error; 607 nsa.sa_handler = nsv.sv_handler; 608 #if 0 /* documentation */ 609 /* ONSTACK is identical */ 610 nsa.sa_flags = nsv.sv_flags & ULTRIX_SV_ONSTACK; 611 if ((nsv.sv_flags & ULTRIX_SV_OLDSIG) 612 /* old signal() - always restart */ 613 || (!(nsv.sv_flags & ULTRIX_SV_INTERRUPT)) 614 /* inverted meaning (same bit) */ 615 ) 616 nsa.sa_flags |= SA_RESTART; 617 #else /* optimized - assuming ULTRIX_SV_OLDSIG=>!ULTRIX_SV_INTERRUPT */ 618 nsa.sa_flags = nsv.sv_flags & ~ULTRIX_SV_OLDSIG; 619 nsa.sa_flags ^= SA_RESTART; 620 #endif 621 native_sigset13_to_sigset(&nsv.sv_mask, &nsa.sa_mask); 622 } 623 error = sigaction1(l, SCARG(uap, signum), 624 SCARG(uap, nsv) ? &nsa : 0, SCARG(uap, osv) ? &osa : 0, 625 NULL, 0); 626 if (error) 627 return error; 628 if (SCARG(uap, osv)) { 629 osv.sv_handler = osa.sa_handler; 630 osv.sv_flags = osa.sa_flags ^ SA_RESTART; 631 osv.sv_flags &= (ULTRIX_SV_ONSTACK | ULTRIX_SV_INTERRUPT); 632 native_sigset_to_sigset13(&osa.sa_mask, &osv.sv_mask); 633 error = copyout(&osv, SCARG(uap, osv), sizeof(osv)); 634 if (error) 635 return error; 636 } 637 return 0; 638 } 639 640 int 641 ultrix_sys_shmsys(struct lwp *l, const struct ultrix_sys_shmsys_args *uap, register_t *retval) 642 { 643 644 #ifdef SYSVSHM 645 /* Ultrix SVSHM weirndess: */ 646 struct sys_shmat_args shmat_args; 647 struct compat_14_sys_shmctl_args shmctl_args; 648 struct sys_shmdt_args shmdt_args; 649 struct sys_shmget_args shmget_args; 650 651 652 switch (SCARG(uap, shmop)) { 653 case 0: /* Ultrix shmat() */ 654 SCARG(&shmat_args, shmid) = SCARG(uap, a2); 655 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a3); 656 SCARG(&shmat_args, shmflg) = SCARG(uap, a4); 657 return sys_shmat(l, &shmat_args, retval); 658 659 case 1: /* Ultrix shmctl() */ 660 SCARG(&shmctl_args, shmid) = SCARG(uap, a2); 661 SCARG(&shmctl_args, cmd) = SCARG(uap, a3); 662 SCARG(&shmctl_args, buf) = (struct shmid_ds14 *)SCARG(uap, a4); 663 return compat_14_sys_shmctl(l, &shmctl_args, retval); 664 665 case 2: /* Ultrix shmdt() */ 666 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a2); 667 return sys_shmdt(l, &shmdt_args, retval); 668 669 case 3: /* Ultrix shmget() */ 670 SCARG(&shmget_args, key) = SCARG(uap, a2); 671 SCARG(&shmget_args, size) = SCARG(uap, a3); 672 SCARG(&shmget_args, shmflg) = SCARG(uap, a4) 673 & (IPC_CREAT|IPC_EXCL|IPC_NOWAIT); 674 return sys_shmget(l, &shmget_args, retval); 675 676 default: 677 return EINVAL; 678 } 679 #else 680 return EOPNOTSUPP; 681 #endif /* SYSVSHM */ 682 } 683 684 static int 685 ultrix_to_bsd_flock(struct ultrix_flock *ufl, struct flock *fl) 686 { 687 688 fl->l_start = ufl->l_start; 689 fl->l_len = ufl->l_len; 690 fl->l_pid = ufl->l_pid; 691 fl->l_whence = ufl->l_whence; 692 693 switch (ufl->l_type) { 694 case ULTRIX_F_RDLCK: 695 fl->l_type = F_RDLCK; 696 break; 697 case ULTRIX_F_WRLCK: 698 fl->l_type = F_WRLCK; 699 break; 700 case ULTRIX_F_UNLCK: 701 fl->l_type = F_UNLCK; 702 break; 703 default: 704 return EINVAL; 705 } 706 707 return 0; 708 } 709 710 static void 711 bsd_to_ultrix_flock(struct flock *fl, struct ultrix_flock *ufl) 712 { 713 714 ufl->l_start = fl->l_start; 715 ufl->l_len = fl->l_len; 716 ufl->l_pid = fl->l_pid; 717 ufl->l_whence = fl->l_whence; 718 719 switch (fl->l_type) { 720 case F_RDLCK: 721 ufl->l_type = ULTRIX_F_RDLCK; 722 break; 723 case F_WRLCK: 724 ufl->l_type = ULTRIX_F_WRLCK; 725 break; 726 case F_UNLCK: 727 ufl->l_type = ULTRIX_F_UNLCK; 728 break; 729 } 730 } 731 732 int 733 ultrix_sys_fcntl(struct lwp *l, const struct ultrix_sys_fcntl_args *uap, register_t *retval) 734 { 735 int error; 736 struct ultrix_flock ufl; 737 struct flock fl; 738 739 switch (SCARG(uap, cmd)) { 740 case F_GETLK: 741 case F_SETLK: 742 case F_SETLKW: 743 error = copyin(SCARG(uap, arg), &ufl, sizeof(ufl)); 744 if (error) 745 return error; 746 error = ultrix_to_bsd_flock(&ufl, &fl); 747 if (error) 748 return error; 749 error = do_fcntl_lock(SCARG(uap, fd), SCARG(uap, cmd), &fl); 750 if (SCARG(uap, cmd) != F_GETLK || error != 0) 751 return error; 752 bsd_to_ultrix_flock(&fl, &ufl); 753 return copyout(&ufl, SCARG(uap, arg), sizeof(ufl)); 754 755 default: 756 break; 757 } 758 759 return sys_fcntl(l, (const void *)uap, retval); 760 } 761
Indexes created Fri Oct 03 02:09:57 GMT 2025