ultrix_misc.c revision 1.108.16.1
1 /* $NetBSD: ultrix_misc.c,v 1.108.16.1 2007/12/26 19:49:45 ad 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 1.108.16.1 2007/12/26 19:49:45 ad Exp $"); 80 81 #if defined(_KERNEL_OPT) 82 #include "opt_nfsserver.h" 83 #include "opt_sysv.h" 84 #endif 85 86 #include <sys/cdefs.h> /* RCS ID & Copyright macro defns */ 87 88 /* 89 * Ultrix compatibility module. 90 * 91 * Ultrix system calls that are implemented differently in BSD are 92 * handled here. 93 */ 94 95 #if defined(_KERNEL_OPT) 96 #include "fs_nfs.h" 97 #endif 98 99 #include <sys/param.h> 100 #include <sys/systm.h> 101 #include <sys/namei.h> 102 #include <sys/dirent.h> 103 #include <sys/proc.h> 104 #include <sys/file.h> 105 #include <sys/filedesc.h> 106 #include <sys/kernel.h> 107 #include <sys/exec.h> 108 #include <sys/malloc.h> 109 #include <sys/mbuf.h> 110 #include <sys/mman.h> 111 #include <sys/mount.h> 112 #include <sys/resource.h> 113 #include <sys/resourcevar.h> 114 #include <sys/signal.h> 115 #include <sys/signalvar.h> 116 #include <sys/socket.h> 117 #include <sys/vnode.h> 118 #include <sys/uio.h> 119 #include <sys/wait.h> 120 #include <sys/utsname.h> 121 #include <sys/unistd.h> 122 #include <sys/ipc.h> 123 124 #include <sys/syscallargs.h> 125 126 #include <uvm/uvm_extern.h> 127 128 #include <compat/ultrix/ultrix_syscall.h> 129 #include <compat/ultrix/ultrix_syscallargs.h> 130 #include <compat/common/compat_util.h> 131 132 #include <netinet/in.h> 133 134 #include <miscfs/specfs/specdev.h> 135 136 #include <nfs/rpcv2.h> 137 #include <nfs/nfsproto.h> 138 #include <nfs/nfs.h> 139 140 #include <sys/socketvar.h> /* sosetopt() */ 141 142 #include <compat/ultrix/ultrix_flock.h> 143 144 #include <compat/sys/signal.h> 145 #include <compat/sys/signalvar.h> 146 147 #ifdef __mips 148 #include <mips/cachectl.h> 149 #include <mips/frame.h> 150 #endif 151 152 static int ultrix_to_bsd_flock(struct ultrix_flock *, struct flock *); 153 static void bsd_to_ultrix_flock(struct flock *, struct ultrix_flock *); 154 155 extern struct sysent ultrix_sysent[]; 156 extern const char * const ultrix_syscallnames[]; 157 extern char ultrix_sigcode[], ultrix_esigcode[]; 158 159 struct uvm_object *emul_ultrix_object; 160 161 #ifndef __HAVE_SYSCALL_INTERN 162 void syscall(void); 163 #endif 164 165 const struct emul emul_ultrix = { 166 "ultrix", 167 "/emul/ultrix", 168 #ifndef __HAVE_MINIMAL_EMUL 169 0, 170 NULL, 171 ULTRIX_SYS_syscall, 172 ULTRIX_SYS_NSYSENT, 173 #endif 174 ultrix_sysent, 175 ultrix_syscallnames, 176 #ifdef __mips 177 sendsig_sigcontext, 178 #else /* vax */ 179 sendsig, 180 #endif 181 trapsignal, 182 NULL, 183 ultrix_sigcode, 184 ultrix_esigcode, 185 &emul_ultrix_object, 186 setregs, 187 NULL, 188 NULL, 189 NULL, 190 NULL, 191 NULL, 192 #ifdef __HAVE_SYSCALL_INTERN 193 syscall_intern, 194 #else 195 syscall, 196 #endif 197 NULL, 198 NULL, 199 200 uvm_default_mapaddr, 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(short))); 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 sys_wait4_args ua; 235 236 SCARG(&ua, pid) = SCARG(uap, pid); 237 SCARG(&ua, status) = SCARG(uap, status); 238 SCARG(&ua, options) = SCARG(uap, options); 239 SCARG(&ua, rusage) = 0; 240 241 return (sys_wait4(l, &ua, 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 sys_wait4_args ua; 248 249 SCARG(&ua, pid) = -1; 250 SCARG(&ua, status) = SCARG(uap, status); 251 SCARG(&ua, options) = SCARG(uap, options); 252 SCARG(&ua, rusage) = SCARG(uap, rusage); 253 254 return (sys_wait4(l, &ua, 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 sys_select_args *uap, register_t *retval) 266 { 267 struct timeval atv; 268 int error; 269 270 /* Limit number of FDs selected on to the native maximum */ 271 272 if (SCARG(uap, nd) > FD_SETSIZE) 273 SCARG(uap, nd) = FD_SETSIZE; 274 275 /* Check for negative timeval */ 276 if (SCARG(uap, tv)) { 277 error = copyin((void *)SCARG(uap, tv), (void *)&atv, 278 sizeof(atv)); 279 if (error) 280 goto done; 281 #ifdef DEBUG 282 /* Ultrix clients sometimes give negative timeouts? */ 283 if (atv.tv_sec < 0 || atv.tv_usec < 0) 284 printf("ultrix select( %ld, %ld): negative timeout\n", 285 atv.tv_sec, atv.tv_usec); 286 #endif 287 288 } 289 error = sys_select(l, (void*) uap, retval); 290 if (error == EINVAL) 291 printf("ultrix select: bad args?\n"); 292 293 done: 294 return error; 295 } 296 297 #if defined(NFS) 298 int 299 async_daemon(struct lwp *l, const void *v, register_t *retval) 300 { 301 struct sys_nfssvc_args ouap; 302 303 SCARG(&ouap, flag) = NFSSVC_BIOD; 304 SCARG(&ouap, argp) = NULL; 305 306 return (sys_nfssvc(l, &ouap, retval)); 307 } 308 #endif /* NFS */ 309 310 311 #define SUN__MAP_NEW 0x80000000 /* if not, old mmap & cannot handle */ 312 313 int 314 ultrix_sys_mmap(struct lwp *l, const struct ultrix_sys_mmap_args *uap, register_t *retval) 315 { 316 struct sys_mmap_args ouap; 317 318 /* 319 * Verify the arguments. 320 */ 321 if (SCARG(uap, prot) & ~(PROT_READ|PROT_WRITE|PROT_EXEC)) 322 return (EINVAL); /* XXX still needed? */ 323 324 if ((SCARG(uap, flags) & SUN__MAP_NEW) == 0) 325 return (EINVAL); 326 327 SCARG(&ouap, flags) = SCARG(uap, flags) & ~SUN__MAP_NEW; 328 SCARG(&ouap, addr) = SCARG(uap, addr); 329 SCARG(&ouap, len) = SCARG(uap, len); 330 SCARG(&ouap, prot) = SCARG(uap, prot); 331 SCARG(&ouap, fd) = SCARG(uap, fd); 332 SCARG(&ouap, pos) = SCARG(uap, pos); 333 334 return (sys_mmap(l, &ouap, retval)); 335 } 336 337 int 338 ultrix_sys_setsockopt(struct lwp *l, const struct ultrix_sys_setsockopt_args *uap, register_t *retval) 339 { 340 struct proc *p = l->l_proc; 341 struct file *fp; 342 struct mbuf *m = NULL; 343 int error; 344 345 /* getsock() will use the descriptor for us */ 346 if ((error = getsock(p->p_fd, SCARG(uap, s), &fp)) != 0) 347 return (error); 348 #define SO_DONTLINGER (~SO_LINGER) 349 if (SCARG(uap, name) == SO_DONTLINGER) { 350 m = m_get(M_WAIT, MT_SOOPTS); 351 mtod(m, struct linger *)->l_onoff = 0; 352 m->m_len = sizeof(struct linger); 353 error = sosetopt((struct socket *)fp->f_data, SCARG(uap, level), 354 SO_LINGER, m); 355 } 356 if (SCARG(uap, 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(uap, name) >= EMUL_IP_MULTICAST_IF && 370 SCARG(uap, name) <= EMUL_IP_DROP_MEMBERSHIP) { 371 SCARG(uap, name) = 372 ipoptxlat[SCARG(uap, name) - EMUL_IP_MULTICAST_IF]; 373 } 374 } 375 if (SCARG(uap, valsize) > MLEN) { 376 error = EINVAL; 377 goto out; 378 } 379 if (SCARG(uap, val)) { 380 m = m_get(M_WAIT, MT_SOOPTS); 381 error = copyin(SCARG(uap, val), mtod(m, void *), 382 (u_int)SCARG(uap, valsize)); 383 if (error) { 384 (void) m_free(m); 385 goto out; 386 } 387 m->m_len = SCARG(uap, valsize); 388 } 389 error = sosetopt((struct socket *)fp->f_data, SCARG(uap, level), 390 SCARG(uap, name), m); 391 out: 392 FILE_UNUSE(fp, l); 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((void *)&sut, (void *)SCARG(uap, name), 432 sizeof(struct ultrix_utsname)); 433 } 434 435 int 436 ultrix_sys_setpgrp(struct lwp *l, const struct ultrix_sys_setpgrp_args *uap, register_t *retval) 437 { 438 struct proc *p = l->l_proc; 439 440 /* 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(uap, pgid) && 447 (!SCARG(uap, pid) || SCARG(uap, pid) == p->p_pid)) 448 return sys_setsid(l, uap, retval); 449 else 450 return sys_setpgid(l, uap, retval); 451 } 452 453 #if defined (NFSSERVER) 454 int 455 ultrix_sys_nfssvc(struct lwp *l, const void *v, register_t *retval) 456 { 457 458 #if 0 /* XXX */ 459 struct ultrix_sys_nfssvc_args *uap = v; 460 struct emul *e = p->p_emul; 461 struct sys_nfssvc_args outuap; 462 struct sockaddr sa; 463 int error; 464 void *sg = stackgap_init(p, 0); 465 466 memset(&outuap, 0, sizeof outuap); 467 SCARG(&outuap, fd) = SCARG(uap, fd); 468 SCARG(&outuap, mskval) = stackgap_alloc(p, &sg, sizeof sa); 469 SCARG(&outuap, msklen) = sizeof sa; 470 SCARG(&outuap, mtchval) = stackgap_alloc(p, &sg, sizeof sa); 471 SCARG(&outuap, mtchlen) = sizeof sa; 472 473 memset(&sa, 0, sizeof sa); 474 if (error = copyout(&sa, SCARG(&outuap, mskval), SCARG(&outuap, msklen))) 475 return (error); 476 if (error = copyout(&sa, SCARG(&outuap, mtchval), SCARG(&outuap, mtchlen))) 477 return (error); 478 479 return nfssvc(l, &outuap, retval); 480 #else 481 return (ENOSYS); 482 #endif 483 } 484 #endif /* NFSSERVER */ 485 486 struct ultrix_ustat { 487 daddr_t f_tfree; /* total free */ 488 uint32_t f_tinode; /* total inodes free */ 489 char f_fname[6]; /* filsys name */ 490 char f_fpack[6]; /* filsys pack name */ 491 }; 492 493 int 494 ultrix_sys_ustat(struct lwp *l, const struct ultrix_sys_ustat_args *uap, register_t *retval) 495 { 496 struct ultrix_ustat us; 497 int error; 498 499 memset(&us, 0, sizeof us); 500 501 /* 502 * XXX: should set f_tfree and f_tinode at least 503 * How do we translate dev -> fstat? (and then to ultrix_ustat) 504 */ 505 506 if ((error = copyout(&us, SCARG(uap, buf), sizeof us)) != 0) 507 return (error); 508 return 0; 509 } 510 511 int 512 ultrix_sys_quotactl(struct lwp *l, const struct ultrix_sys_quotactl_args *uap, register_t *retval) 513 { 514 515 return EINVAL; 516 } 517 518 int 519 ultrix_sys_vhangup(struct lwp *l, const struct ultrix_sys_vhangup_args *uap, register_t *retval) 520 { 521 522 return 0; 523 } 524 525 526 /* 527 * RISC Ultrix cache control syscalls 528 */ 529 #ifdef __mips 530 int 531 ultrix_sys_cacheflush(struct lwp *l, const struct ultrix_sys_cacheflush_args *uap, register_t *retval) 532 { 533 /* { 534 syscallarg(void *) addr; 535 syscallarg(unsigned) nbytes; 536 syscallarg(int) flag; 537 } */ 538 struct proc *p = l->l_proc; 539 vaddr_t va = (vaddr_t)SCARG(uap, addr); 540 int nbytes = SCARG(uap, nbytes); 541 int whichcache = SCARG(uap, whichcache); 542 543 return (mips_user_cacheflush(p, va, nbytes, whichcache)); 544 } 545 546 547 int 548 ultrix_sys_cachectl(struct lwp *l, const struct ultrix_sys_cachectl_args *uap, register_t *retval) 549 { 550 /* { 551 syscallarg(void *) addr; 552 syscallarg(int) nbytes; 553 syscallarg(int) cacheop; 554 } */ 555 struct proc *p = l->l_proc; 556 vaddr_t va = (vaddr_t)SCARG(uap, addr); 557 int nbytes = SCARG(uap, nbytes); 558 int cacheop = SCARG(uap, cacheop); 559 560 return mips_user_cachectl(p, va, nbytes, cacheop); 561 } 562 563 #endif /* __mips */ 564 565 566 int 567 ultrix_sys_exportfs(struct lwp *l, const struct ultrix_sys_exportfs_args *uap, register_t *retval) 568 { 569 570 /* 571 * XXX: should perhaps translate into a mount(2) 572 * with MOUNT_EXPORT? 573 */ 574 return 0; 575 } 576 577 int 578 ultrix_sys_sigpending(struct lwp *l, const struct ultrix_sys_sigpending_args *uap, register_t *retval) 579 { 580 sigset_t ss; 581 int mask; 582 583 sigpending1(l, &ss); 584 mask = ss.__bits[0]; 585 586 return (copyout((void *)&mask, (void *)SCARG(uap, mask), sizeof(int))); 587 } 588 589 int 590 ultrix_sys_sigreturn(struct lwp *l, const struct ultrix_sys_sigreturn_args *uap, register_t *retval) 591 { 592 593 /* struct sigcontext13 is close enough to Ultrix */ 594 595 return (compat_13_sys_sigreturn(l, uap, retval)); 596 } 597 598 int 599 ultrix_sys_sigcleanup(struct lwp *l, const struct ultrix_sys_sigcleanup_args *uap, register_t *retval) 600 { 601 602 /* struct sigcontext13 is close enough to Ultrix */ 603 604 return (compat_13_sys_sigreturn(l, uap, retval)); 605 } 606 607 int 608 ultrix_sys_sigsuspend(struct lwp *l, const struct ultrix_sys_sigsuspend_args *uap, register_t *retval) 609 { 610 int mask = SCARG(uap, mask); 611 sigset_t ss; 612 613 ss.__bits[0] = mask; 614 ss.__bits[1] = 0; 615 ss.__bits[2] = 0; 616 ss.__bits[3] = 0; 617 618 return (sigsuspend1(l, &ss)); 619 } 620 621 #define ULTRIX_SV_ONSTACK 0x0001 /* take signal on signal stack */ 622 #define ULTRIX_SV_INTERRUPT 0x0002 /* do not restart system on signal return */ 623 #define ULTRIX_SV_OLDSIG 0x1000 /* Emulate old signal() for POSIX */ 624 625 int 626 ultrix_sys_sigvec(struct lwp *l, const struct ultrix_sys_sigvec_args *uap, register_t *retval) 627 { 628 struct sigvec nsv, osv; 629 struct sigaction nsa, osa; 630 int error; 631 632 if (SCARG(uap, nsv)) { 633 error = copyin(SCARG(uap, nsv), &nsv, sizeof(nsv)); 634 if (error) 635 return (error); 636 nsa.sa_handler = nsv.sv_handler; 637 #if 0 /* documentation */ 638 /* ONSTACK is identical */ 639 nsa.sa_flags = nsv.sv_flags & ULTRIX_SV_ONSTACK; 640 if ((nsv.sv_flags & ULTRIX_SV_OLDSIG) 641 /* old signal() - always restart */ 642 || (!(nsv.sv_flags & ULTRIX_SV_INTERRUPT)) 643 /* inverted meaning (same bit) */ 644 ) 645 nsa.sa_flags |= SA_RESTART; 646 #else /* optimized - assuming ULTRIX_SV_OLDSIG=>!ULTRIX_SV_INTERRUPT */ 647 nsa.sa_flags = nsv.sv_flags & ~ULTRIX_SV_OLDSIG; 648 nsa.sa_flags ^= SA_RESTART; 649 #endif 650 native_sigset13_to_sigset(&nsv.sv_mask, &nsa.sa_mask); 651 } 652 error = sigaction1(l, SCARG(uap, signum), 653 SCARG(uap, nsv) ? &nsa : 0, SCARG(uap, osv) ? &osa : 0, 654 NULL, 0); 655 if (error) 656 return (error); 657 if (SCARG(uap, osv)) { 658 osv.sv_handler = osa.sa_handler; 659 osv.sv_flags = osa.sa_flags ^ SA_RESTART; 660 osv.sv_flags &= (ULTRIX_SV_ONSTACK | ULTRIX_SV_INTERRUPT); 661 native_sigset_to_sigset13(&osa.sa_mask, &osv.sv_mask); 662 error = copyout(&osv, SCARG(uap, osv), sizeof(osv)); 663 if (error) 664 return (error); 665 } 666 return (0); 667 } 668 669 int 670 ultrix_sys_shmsys(struct lwp *l, const struct ultrix_sys_shmsys_args *uap, register_t *retval) 671 { 672 673 #ifdef SYSVSHM 674 /* Ultrix SVSHM weirndess: */ 675 struct sys_shmat_args shmat_args; 676 struct compat_14_sys_shmctl_args shmctl_args; 677 struct sys_shmdt_args shmdt_args; 678 struct sys_shmget_args shmget_args; 679 680 681 switch (SCARG(uap, shmop)) { 682 case 0: /* Ultrix shmat() */ 683 SCARG(&shmat_args, shmid) = SCARG(uap, a2); 684 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a3); 685 SCARG(&shmat_args, shmflg) = SCARG(uap, a4); 686 return (sys_shmat(l, &shmat_args, retval)); 687 688 case 1: /* Ultrix shmctl() */ 689 SCARG(&shmctl_args, shmid) = SCARG(uap, a2); 690 SCARG(&shmctl_args, cmd) = SCARG(uap, a3); 691 SCARG(&shmctl_args, buf) = (struct shmid_ds14 *)SCARG(uap, a4); 692 return (compat_14_sys_shmctl(l, &shmctl_args, retval)); 693 694 case 2: /* Ultrix shmdt() */ 695 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a2); 696 return (sys_shmdt(l, &shmdt_args, retval)); 697 698 case 3: /* Ultrix shmget() */ 699 SCARG(&shmget_args, key) = SCARG(uap, a2); 700 SCARG(&shmget_args, size) = SCARG(uap, a3); 701 SCARG(&shmget_args, shmflg) = SCARG(uap, a4) 702 & (IPC_CREAT|IPC_EXCL|IPC_NOWAIT); 703 return (sys_shmget(l, &shmget_args, retval)); 704 705 default: 706 return (EINVAL); 707 } 708 #else 709 return (EOPNOTSUPP); 710 #endif /* SYSVSHM */ 711 } 712 713 static int 714 ultrix_to_bsd_flock(struct ultrix_flock *ufl, struct flock *fl) 715 { 716 717 fl->l_start = ufl->l_start; 718 fl->l_len = ufl->l_len; 719 fl->l_pid = ufl->l_pid; 720 fl->l_whence = ufl->l_whence; 721 722 switch (ufl->l_type) { 723 case ULTRIX_F_RDLCK: 724 fl->l_type = F_RDLCK; 725 break; 726 case ULTRIX_F_WRLCK: 727 fl->l_type = F_WRLCK; 728 break; 729 case ULTRIX_F_UNLCK: 730 fl->l_type = F_UNLCK; 731 break; 732 default: 733 return (EINVAL); 734 } 735 736 return (0); 737 } 738 739 static void 740 bsd_to_ultrix_flock(struct flock *fl, struct ultrix_flock *ufl) 741 { 742 743 ufl->l_start = fl->l_start; 744 ufl->l_len = fl->l_len; 745 ufl->l_pid = fl->l_pid; 746 ufl->l_whence = fl->l_whence; 747 748 switch (fl->l_type) { 749 case F_RDLCK: 750 ufl->l_type = ULTRIX_F_RDLCK; 751 break; 752 case F_WRLCK: 753 ufl->l_type = ULTRIX_F_WRLCK; 754 break; 755 case F_UNLCK: 756 ufl->l_type = ULTRIX_F_UNLCK; 757 break; 758 } 759 } 760 761 int 762 ultrix_sys_fcntl(struct lwp *l, const struct ultrix_sys_fcntl_args *uap, register_t *retval) 763 { 764 int error; 765 struct ultrix_flock ufl; 766 struct flock fl; 767 768 switch (SCARG(uap, cmd)) { 769 case F_GETLK: 770 case F_SETLK: 771 case F_SETLKW: 772 error = copyin(SCARG(uap, arg), &ufl, sizeof(ufl)); 773 if (error) 774 return (error); 775 error = ultrix_to_bsd_flock(&ufl, &fl); 776 if (error) 777 return (error); 778 error = do_fcntl_lock(l, SCARG(uap, fd), SCARG(uap, cmd), &fl); 779 if (SCARG(uap, cmd) != F_GETLK || error != 0) 780 return error; 781 bsd_to_ultrix_flock(&fl, &ufl); 782 return copyout(&ufl, SCARG(uap, arg), sizeof(ufl)); 783 784 default: 785 break; 786 } 787 788 return sys_fcntl(l, (const void *)uap, retval); 789 } 790
Indexes created Fri Oct 03 17:10:05 GMT 2025