ultrix_misc.c revision 1.107
1 /* $NetBSD: ultrix_misc.c,v 1.107 2007/05/12 23:02:50 dsl 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 1.107 2007/05/12 23:02:50 dsl 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, void *v, register_t *retval) 207 { 208 struct ultrix_sys_getsysinfo_args *uap = v; 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(short))); 218 default: 219 *retval = 0; /* info unavail */ 220 return 0; 221 } 222 } 223 224 int 225 ultrix_sys_setsysinfo(struct lwp *l, void *v, register_t *retval) 226 { 227 228 #ifdef notyet 229 struct ultrix_sys_setsysinfo_args *uap = v; 230 #endif 231 232 *retval = 0; 233 return 0; 234 } 235 236 int 237 ultrix_sys_waitpid(struct lwp *l, void *v, register_t *retval) 238 { 239 struct ultrix_sys_waitpid_args *uap = v; 240 struct sys_wait4_args ua; 241 242 SCARG(&ua, pid) = SCARG(uap, pid); 243 SCARG(&ua, status) = SCARG(uap, status); 244 SCARG(&ua, options) = SCARG(uap, options); 245 SCARG(&ua, rusage) = 0; 246 247 return (sys_wait4(l, &ua, retval)); 248 } 249 250 int 251 ultrix_sys_wait3(struct lwp *l, void *v, register_t *retval) 252 { 253 struct ultrix_sys_wait3_args *uap = v; 254 struct sys_wait4_args ua; 255 256 SCARG(&ua, pid) = -1; 257 SCARG(&ua, status) = SCARG(uap, status); 258 SCARG(&ua, options) = SCARG(uap, options); 259 SCARG(&ua, rusage) = SCARG(uap, rusage); 260 261 return (sys_wait4(l, &ua, retval)); 262 } 263 264 /* 265 * Ultrix binaries pass in FD_MAX as the first arg to select(). 266 * On Ultrix, FD_MAX is 4096, which is more than the NetBSD sys_select() 267 * can handle. 268 * Since we can't have more than the (native) FD_MAX descriptors open, 269 * limit nfds to at most FD_MAX. 270 */ 271 int 272 ultrix_sys_select(struct lwp *l, void *v, register_t *retval) 273 { 274 struct sys_select_args *uap = v; 275 struct timeval atv; 276 int error; 277 278 /* Limit number of FDs selected on to the native maximum */ 279 280 if (SCARG(uap, nd) > FD_SETSIZE) 281 SCARG(uap, nd) = FD_SETSIZE; 282 283 /* Check for negative timeval */ 284 if (SCARG(uap, tv)) { 285 error = copyin((void *)SCARG(uap, tv), (void *)&atv, 286 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 = sys_select(l, (void*) uap, retval); 298 if (error == EINVAL) 299 printf("ultrix select: bad args?\n"); 300 301 done: 302 return error; 303 } 304 305 #if defined(NFS) 306 int 307 async_daemon(struct lwp *l, void *v, register_t *retval) 308 { 309 struct sys_nfssvc_args ouap; 310 311 SCARG(&ouap, flag) = NFSSVC_BIOD; 312 SCARG(&ouap, argp) = NULL; 313 314 return (sys_nfssvc(l, &ouap, retval)); 315 } 316 #endif /* NFS */ 317 318 319 #define SUN__MAP_NEW 0x80000000 /* if not, old mmap & cannot handle */ 320 321 int 322 ultrix_sys_mmap(struct lwp *l, void *v, register_t *retval) 323 { 324 struct ultrix_sys_mmap_args *uap = v; 325 struct sys_mmap_args ouap; 326 327 /* 328 * Verify the arguments. 329 */ 330 if (SCARG(uap, prot) & ~(PROT_READ|PROT_WRITE|PROT_EXEC)) 331 return (EINVAL); /* XXX still needed? */ 332 333 if ((SCARG(uap, flags) & SUN__MAP_NEW) == 0) 334 return (EINVAL); 335 336 SCARG(&ouap, flags) = SCARG(uap, flags) & ~SUN__MAP_NEW; 337 SCARG(&ouap, addr) = SCARG(uap, addr); 338 SCARG(&ouap, len) = SCARG(uap, len); 339 SCARG(&ouap, prot) = SCARG(uap, prot); 340 SCARG(&ouap, fd) = SCARG(uap, fd); 341 SCARG(&ouap, pos) = SCARG(uap, pos); 342 343 return (sys_mmap(l, &ouap, retval)); 344 } 345 346 int 347 ultrix_sys_setsockopt(struct lwp *l, void *v, register_t *retval) 348 { 349 struct ultrix_sys_setsockopt_args *uap = v; 350 struct proc *p = l->l_proc; 351 struct file *fp; 352 struct mbuf *m = NULL; 353 int error; 354 355 /* getsock() will use the descriptor for us */ 356 if ((error = getsock(p->p_fd, SCARG(uap, s), &fp)) != 0) 357 return (error); 358 #define SO_DONTLINGER (~SO_LINGER) 359 if (SCARG(uap, name) == SO_DONTLINGER) { 360 m = m_get(M_WAIT, MT_SOOPTS); 361 mtod(m, struct linger *)->l_onoff = 0; 362 m->m_len = sizeof(struct linger); 363 error = sosetopt((struct socket *)fp->f_data, SCARG(uap, level), 364 SO_LINGER, m); 365 } 366 if (SCARG(uap, level) == IPPROTO_IP) { 367 #define EMUL_IP_MULTICAST_IF 2 368 #define EMUL_IP_MULTICAST_TTL 3 369 #define EMUL_IP_MULTICAST_LOOP 4 370 #define EMUL_IP_ADD_MEMBERSHIP 5 371 #define EMUL_IP_DROP_MEMBERSHIP 6 372 static const int ipoptxlat[] = { 373 IP_MULTICAST_IF, 374 IP_MULTICAST_TTL, 375 IP_MULTICAST_LOOP, 376 IP_ADD_MEMBERSHIP, 377 IP_DROP_MEMBERSHIP 378 }; 379 if (SCARG(uap, name) >= EMUL_IP_MULTICAST_IF && 380 SCARG(uap, name) <= EMUL_IP_DROP_MEMBERSHIP) { 381 SCARG(uap, name) = 382 ipoptxlat[SCARG(uap, name) - EMUL_IP_MULTICAST_IF]; 383 } 384 } 385 if (SCARG(uap, valsize) > MLEN) { 386 error = EINVAL; 387 goto out; 388 } 389 if (SCARG(uap, val)) { 390 m = m_get(M_WAIT, MT_SOOPTS); 391 error = copyin(SCARG(uap, val), mtod(m, void *), 392 (u_int)SCARG(uap, valsize)); 393 if (error) { 394 (void) m_free(m); 395 goto out; 396 } 397 m->m_len = SCARG(uap, valsize); 398 } 399 error = sosetopt((struct socket *)fp->f_data, SCARG(uap, level), 400 SCARG(uap, name), m); 401 out: 402 FILE_UNUSE(fp, l); 403 return (error); 404 } 405 406 #define ULTRIX__SYS_NMLN 32 407 408 struct ultrix_utsname { 409 char sysname[ULTRIX__SYS_NMLN]; 410 char nodename[ULTRIX__SYS_NMLN]; 411 char release[ULTRIX__SYS_NMLN]; 412 char version[ULTRIX__SYS_NMLN]; 413 char machine[ULTRIX__SYS_NMLN]; 414 }; 415 416 int 417 ultrix_sys_uname(struct lwp *l, void *v, register_t *retval) 418 { 419 struct ultrix_sys_uname_args *uap = v; 420 struct ultrix_utsname sut; 421 const char *cp; 422 char *dp, *ep; 423 424 memset(&sut, 0, sizeof(sut)); 425 426 strncpy(sut.sysname, ostype, sizeof(sut.sysname) - 1); 427 strncpy(sut.nodename, hostname, sizeof(sut.nodename) - 1); 428 strncpy(sut.release, osrelease, sizeof(sut.release) - 1); 429 dp = sut.version; 430 ep = &sut.version[sizeof(sut.version) - 1]; 431 for (cp = version; *cp && *cp != '('; cp++) 432 ; 433 for (cp++; *cp && *cp != ')' && dp < ep; cp++) 434 *dp++ = *cp; 435 for (; *cp && *cp != '#'; cp++) 436 ; 437 for (; *cp && *cp != ':' && dp < ep; cp++) 438 *dp++ = *cp; 439 *dp = '\0'; 440 strncpy(sut.machine, machine, sizeof(sut.machine) - 1); 441 442 return copyout((void *)&sut, (void *)SCARG(uap, name), 443 sizeof(struct ultrix_utsname)); 444 } 445 446 int 447 ultrix_sys_setpgrp(struct lwp *l, void *v, register_t *retval) 448 { 449 struct ultrix_sys_setpgrp_args *uap = v; 450 struct proc *p = l->l_proc; 451 452 /* 453 * difference to our setpgid call is to include backwards 454 * compatibility to pre-setsid() binaries. Do setsid() 455 * instead of setpgid() in those cases where the process 456 * tries to create a new session the old way. 457 */ 458 if (!SCARG(uap, pgid) && 459 (!SCARG(uap, pid) || SCARG(uap, pid) == p->p_pid)) 460 return sys_setsid(l, uap, retval); 461 else 462 return sys_setpgid(l, uap, retval); 463 } 464 465 #if defined (NFSSERVER) 466 int 467 ultrix_sys_nfssvc(struct lwp *l, void *v, register_t *retval) 468 { 469 470 #if 0 /* XXX */ 471 struct ultrix_sys_nfssvc_args *uap = v; 472 struct emul *e = p->p_emul; 473 struct sys_nfssvc_args outuap; 474 struct sockaddr sa; 475 int error; 476 void *sg = stackgap_init(p, 0); 477 478 memset(&outuap, 0, sizeof outuap); 479 SCARG(&outuap, fd) = SCARG(uap, fd); 480 SCARG(&outuap, mskval) = stackgap_alloc(p, &sg, sizeof sa); 481 SCARG(&outuap, msklen) = sizeof sa; 482 SCARG(&outuap, mtchval) = stackgap_alloc(p, &sg, sizeof sa); 483 SCARG(&outuap, mtchlen) = sizeof sa; 484 485 memset(&sa, 0, sizeof sa); 486 if (error = copyout(&sa, SCARG(&outuap, mskval), SCARG(&outuap, msklen))) 487 return (error); 488 if (error = copyout(&sa, SCARG(&outuap, mtchval), SCARG(&outuap, mtchlen))) 489 return (error); 490 491 return nfssvc(l, &outuap, retval); 492 #else 493 return (ENOSYS); 494 #endif 495 } 496 #endif /* NFSSERVER */ 497 498 struct ultrix_ustat { 499 daddr_t f_tfree; /* total free */ 500 uint32_t f_tinode; /* total inodes free */ 501 char f_fname[6]; /* filsys name */ 502 char f_fpack[6]; /* filsys pack name */ 503 }; 504 505 int 506 ultrix_sys_ustat(struct lwp *l, void *v, register_t *retval) 507 { 508 struct ultrix_sys_ustat_args *uap = v; 509 struct ultrix_ustat us; 510 int error; 511 512 memset(&us, 0, sizeof us); 513 514 /* 515 * XXX: should set f_tfree and f_tinode at least 516 * How do we translate dev -> fstat? (and then to ultrix_ustat) 517 */ 518 519 if ((error = copyout(&us, SCARG(uap, buf), sizeof us)) != 0) 520 return (error); 521 return 0; 522 } 523 524 int 525 ultrix_sys_quotactl(struct lwp *l, void *v, register_t *retval) 526 { 527 528 #ifdef notyet 529 struct ultrix_sys_quotactl_args *uap = v; 530 #endif 531 532 return EINVAL; 533 } 534 535 int 536 ultrix_sys_vhangup(struct lwp *l, void *v, register_t *retval) 537 { 538 539 return 0; 540 } 541 542 543 /* 544 * RISC Ultrix cache control syscalls 545 */ 546 #ifdef __mips 547 int 548 ultrix_sys_cacheflush(struct lwp *l, void *v, register_t *retval) 549 { 550 struct ultrix_sys_cacheflush_args /* { 551 syscallarg(void *) addr; 552 syscallarg(unsigned) nbytes; 553 syscallarg(int) flag; 554 } */ *uap = v; 555 struct proc *p = l->l_proc; 556 vaddr_t va = (vaddr_t)SCARG(uap, addr); 557 int nbytes = SCARG(uap, nbytes); 558 int whichcache = SCARG(uap, whichcache); 559 560 return (mips_user_cacheflush(p, va, nbytes, whichcache)); 561 } 562 563 564 int 565 ultrix_sys_cachectl(struct lwp *l, void *v, register_t *retval) 566 { 567 struct ultrix_sys_cachectl_args /* { 568 syscallarg(void *) addr; 569 syscallarg(int) nbytes; 570 syscallarg(int) cacheop; 571 } */ *uap = v; 572 struct proc *p = l->l_proc; 573 vaddr_t va = (vaddr_t)SCARG(uap, addr); 574 int nbytes = SCARG(uap, nbytes); 575 int cacheop = SCARG(uap, cacheop); 576 577 return mips_user_cachectl(p, va, nbytes, cacheop); 578 } 579 580 #endif /* __mips */ 581 582 583 int 584 ultrix_sys_exportfs(struct lwp *l, void *v, register_t *retval) 585 { 586 #ifdef notyet 587 struct ultrix_sys_exportfs_args *uap = v; 588 #endif 589 590 /* 591 * XXX: should perhaps translate into a mount(2) 592 * with MOUNT_EXPORT? 593 */ 594 return 0; 595 } 596 597 int 598 ultrix_sys_sigpending(struct lwp *l, void *v, register_t *retval) 599 { 600 struct ultrix_sys_sigpending_args *uap = v; 601 sigset_t ss; 602 int mask; 603 604 sigpending1(l, &ss); 605 mask = ss.__bits[0]; 606 607 return (copyout((void *)&mask, (void *)SCARG(uap, mask), sizeof(int))); 608 } 609 610 int 611 ultrix_sys_sigreturn(struct lwp *l, void *v, register_t *retval) 612 { 613 struct ultrix_sys_sigreturn_args *uap = v; 614 615 /* struct sigcontext13 is close enough to Ultrix */ 616 617 return (compat_13_sys_sigreturn(l, uap, retval)); 618 } 619 620 int 621 ultrix_sys_sigcleanup(struct lwp *l, void *v, register_t *retval) 622 { 623 struct ultrix_sys_sigcleanup_args *uap = v; 624 625 /* struct sigcontext13 is close enough to Ultrix */ 626 627 return (compat_13_sys_sigreturn(l, uap, retval)); 628 } 629 630 int 631 ultrix_sys_sigsuspend(struct lwp *l, void *v, register_t *retval) 632 { 633 struct ultrix_sys_sigsuspend_args *uap = v; 634 int mask = SCARG(uap, mask); 635 sigset_t ss; 636 637 ss.__bits[0] = mask; 638 ss.__bits[1] = 0; 639 ss.__bits[2] = 0; 640 ss.__bits[3] = 0; 641 642 return (sigsuspend1(l, &ss)); 643 } 644 645 #define ULTRIX_SV_ONSTACK 0x0001 /* take signal on signal stack */ 646 #define ULTRIX_SV_INTERRUPT 0x0002 /* do not restart system on signal return */ 647 #define ULTRIX_SV_OLDSIG 0x1000 /* Emulate old signal() for POSIX */ 648 649 int 650 ultrix_sys_sigvec(struct lwp *l, void *v, register_t *retval) 651 { 652 struct ultrix_sys_sigvec_args *uap = v; 653 struct sigvec nsv, osv; 654 struct sigaction nsa, osa; 655 int error; 656 657 if (SCARG(uap, nsv)) { 658 error = copyin(SCARG(uap, nsv), &nsv, sizeof(nsv)); 659 if (error) 660 return (error); 661 nsa.sa_handler = nsv.sv_handler; 662 #if 0 /* documentation */ 663 /* ONSTACK is identical */ 664 nsa.sa_flags = nsv.sv_flags & ULTRIX_SV_ONSTACK; 665 if ((nsv.sv_flags & ULTRIX_SV_OLDSIG) 666 /* old signal() - always restart */ 667 || (!(nsv.sv_flags & ULTRIX_SV_INTERRUPT)) 668 /* inverted meaning (same bit) */ 669 ) 670 nsa.sa_flags |= SA_RESTART; 671 #else /* optimized - assuming ULTRIX_SV_OLDSIG=>!ULTRIX_SV_INTERRUPT */ 672 nsa.sa_flags = nsv.sv_flags & ~ULTRIX_SV_OLDSIG; 673 nsa.sa_flags ^= SA_RESTART; 674 #endif 675 native_sigset13_to_sigset(&nsv.sv_mask, &nsa.sa_mask); 676 } 677 error = sigaction1(l, SCARG(uap, signum), 678 SCARG(uap, nsv) ? &nsa : 0, SCARG(uap, osv) ? &osa : 0, 679 NULL, 0); 680 if (error) 681 return (error); 682 if (SCARG(uap, osv)) { 683 osv.sv_handler = osa.sa_handler; 684 osv.sv_flags = osa.sa_flags ^ SA_RESTART; 685 osv.sv_flags &= (ULTRIX_SV_ONSTACK | ULTRIX_SV_INTERRUPT); 686 native_sigset_to_sigset13(&osa.sa_mask, &osv.sv_mask); 687 error = copyout(&osv, SCARG(uap, osv), sizeof(osv)); 688 if (error) 689 return (error); 690 } 691 return (0); 692 } 693 694 int 695 ultrix_sys_shmsys(struct lwp *l, void *v, register_t *retval) 696 { 697 698 #ifdef SYSVSHM 699 /* Ultrix SVSHM weirndess: */ 700 struct ultrix_sys_shmsys_args *uap = v; 701 struct sys_shmat_args shmat_args; 702 struct compat_14_sys_shmctl_args shmctl_args; 703 struct sys_shmdt_args shmdt_args; 704 struct sys_shmget_args shmget_args; 705 706 707 switch (SCARG(uap, shmop)) { 708 case 0: /* Ultrix shmat() */ 709 SCARG(&shmat_args, shmid) = SCARG(uap, a2); 710 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a3); 711 SCARG(&shmat_args, shmflg) = SCARG(uap, a4); 712 return (sys_shmat(l, &shmat_args, retval)); 713 714 case 1: /* Ultrix shmctl() */ 715 SCARG(&shmctl_args, shmid) = SCARG(uap, a2); 716 SCARG(&shmctl_args, cmd) = SCARG(uap, a3); 717 SCARG(&shmctl_args, buf) = (struct shmid_ds14 *)SCARG(uap, a4); 718 return (compat_14_sys_shmctl(l, &shmctl_args, retval)); 719 720 case 2: /* Ultrix shmdt() */ 721 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a2); 722 return (sys_shmdt(l, &shmdt_args, retval)); 723 724 case 3: /* Ultrix shmget() */ 725 SCARG(&shmget_args, key) = SCARG(uap, a2); 726 SCARG(&shmget_args, size) = SCARG(uap, a3); 727 SCARG(&shmget_args, shmflg) = SCARG(uap, a4) 728 & (IPC_CREAT|IPC_EXCL|IPC_NOWAIT); 729 return (sys_shmget(l, &shmget_args, retval)); 730 731 default: 732 return (EINVAL); 733 } 734 #else 735 return (EOPNOTSUPP); 736 #endif /* SYSVSHM */ 737 } 738 739 static int 740 ultrix_to_bsd_flock(struct ultrix_flock *ufl, struct flock *fl) 741 { 742 743 fl->l_start = ufl->l_start; 744 fl->l_len = ufl->l_len; 745 fl->l_pid = ufl->l_pid; 746 fl->l_whence = ufl->l_whence; 747 748 switch (ufl->l_type) { 749 case ULTRIX_F_RDLCK: 750 fl->l_type = F_RDLCK; 751 break; 752 case ULTRIX_F_WRLCK: 753 fl->l_type = F_WRLCK; 754 break; 755 case ULTRIX_F_UNLCK: 756 fl->l_type = F_UNLCK; 757 break; 758 default: 759 return (EINVAL); 760 } 761 762 return (0); 763 } 764 765 static void 766 bsd_to_ultrix_flock(struct flock *fl, struct ultrix_flock *ufl) 767 { 768 769 ufl->l_start = fl->l_start; 770 ufl->l_len = fl->l_len; 771 ufl->l_pid = fl->l_pid; 772 ufl->l_whence = fl->l_whence; 773 774 switch (fl->l_type) { 775 case F_RDLCK: 776 ufl->l_type = ULTRIX_F_RDLCK; 777 break; 778 case F_WRLCK: 779 ufl->l_type = ULTRIX_F_WRLCK; 780 break; 781 case F_UNLCK: 782 ufl->l_type = ULTRIX_F_UNLCK; 783 break; 784 } 785 } 786 787 int 788 ultrix_sys_fcntl(struct lwp *l, void *v, register_t *retval) 789 { 790 struct ultrix_sys_fcntl_args *uap = v; 791 int error; 792 struct ultrix_flock ufl; 793 struct flock fl; 794 795 switch (SCARG(uap, cmd)) { 796 case F_GETLK: 797 case F_SETLK: 798 case F_SETLKW: 799 error = copyin(SCARG(uap, arg), &ufl, sizeof(ufl)); 800 if (error) 801 return (error); 802 error = ultrix_to_bsd_flock(&ufl, &fl); 803 if (error) 804 return (error); 805 sg = stackgap_init(p, 0); 806 flp = (struct flock *)stackgap_alloc(p, &sg, sizeof(*flp)); 807 error = do_fcntl_lock(l, SCARG(uap, fd), SCARG(uap, cmd), &fl); 808 if (SCARG(uap, cmd) != F_GETLK || error != 0) 809 return error; 810 bsd_to_ultrix_flock(&fl, &ufl); 811 return copyout(&ufl, SCARG(uap, arg), sizeof(ufl)); 812 813 default: 814 break; 815 } 816 817 return sys_fcntl(l, v, retval); 818 } 819
Indexes created Mon Sep 22 05:09:51 GMT 2025