ultrix_misc.c revision 1.99.2.1
1 /* $NetBSD: ultrix_misc.c,v 1.99.2.1 2006/06/21 15:00:00 yamt 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 1.99.2.1 2006/06/21 15:00:00 yamt 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/sa.h> 125 #include <sys/syscallargs.h> 126 127 #include <uvm/uvm_extern.h> 128 129 #include <compat/ultrix/ultrix_syscall.h> 130 #include <compat/ultrix/ultrix_syscallargs.h> 131 #include <compat/common/compat_util.h> 132 133 #include <netinet/in.h> 134 135 #include <miscfs/specfs/specdev.h> 136 137 #include <nfs/rpcv2.h> 138 #include <nfs/nfsproto.h> 139 #include <nfs/nfs.h> 140 141 #include <sys/socketvar.h> /* sosetopt() */ 142 143 #include <compat/ultrix/ultrix_flock.h> 144 145 #include <compat/sys/signal.h> 146 #include <compat/sys/signalvar.h> 147 148 #ifdef __mips 149 #include <mips/cachectl.h> 150 #include <mips/frame.h> 151 #endif 152 153 static int ultrix_to_bsd_flock(struct ultrix_flock *, struct flock *); 154 static void bsd_to_ultrix_flock(struct flock *, struct ultrix_flock *); 155 156 extern struct sysent ultrix_sysent[]; 157 extern const char * const ultrix_syscallnames[]; 158 extern char ultrix_sigcode[], ultrix_esigcode[]; 159 160 struct uvm_object *emul_ultrix_object; 161 162 #ifndef __HAVE_SYSCALL_INTERN 163 void syscall(void); 164 #endif 165 166 const struct emul emul_ultrix = { 167 "ultrix", 168 "/emul/ultrix", 169 #ifndef __HAVE_MINIMAL_EMUL 170 0, 171 NULL, 172 ULTRIX_SYS_syscall, 173 ULTRIX_SYS_NSYSENT, 174 #endif 175 ultrix_sysent, 176 ultrix_syscallnames, 177 #ifdef __mips 178 sendsig_sigcontext, 179 #else /* vax */ 180 sendsig, 181 #endif 182 trapsignal, 183 NULL, 184 ultrix_sigcode, 185 ultrix_esigcode, 186 &emul_ultrix_object, 187 setregs, 188 NULL, 189 NULL, 190 NULL, 191 NULL, 192 NULL, 193 #ifdef __HAVE_SYSCALL_INTERN 194 syscall_intern, 195 #else 196 syscall, 197 #endif 198 NULL, 199 NULL, 200 201 uvm_default_mapaddr, 202 }; 203 204 #define GSI_PROG_ENV 1 205 206 int 207 ultrix_sys_getsysinfo(struct lwp *l, void *v, register_t *retval) 208 { 209 struct ultrix_sys_getsysinfo_args *uap = v; 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(short))); 219 default: 220 *retval = 0; /* info unavail */ 221 return 0; 222 } 223 } 224 225 int 226 ultrix_sys_setsysinfo(struct lwp *l, void *v, register_t *retval) 227 { 228 229 #ifdef notyet 230 struct ultrix_sys_setsysinfo_args *uap = v; 231 #endif 232 233 *retval = 0; 234 return 0; 235 } 236 237 int 238 ultrix_sys_waitpid(struct lwp *l, void *v, register_t *retval) 239 { 240 struct ultrix_sys_waitpid_args *uap = v; 241 struct sys_wait4_args ua; 242 243 SCARG(&ua, pid) = SCARG(uap, pid); 244 SCARG(&ua, status) = SCARG(uap, status); 245 SCARG(&ua, options) = SCARG(uap, options); 246 SCARG(&ua, rusage) = 0; 247 248 return (sys_wait4(l, &ua, retval)); 249 } 250 251 int 252 ultrix_sys_wait3(struct lwp *l, void *v, register_t *retval) 253 { 254 struct ultrix_sys_wait3_args *uap = v; 255 struct sys_wait4_args ua; 256 257 SCARG(&ua, pid) = -1; 258 SCARG(&ua, status) = SCARG(uap, status); 259 SCARG(&ua, options) = SCARG(uap, options); 260 SCARG(&ua, rusage) = SCARG(uap, rusage); 261 262 return (sys_wait4(l, &ua, retval)); 263 } 264 265 /* 266 * Ultrix binaries pass in FD_MAX as the first arg to select(). 267 * On Ultrix, FD_MAX is 4096, which is more than the NetBSD sys_select() 268 * can handle. 269 * Since we can't have more than the (native) FD_MAX descriptors open, 270 * limit nfds to at most FD_MAX. 271 */ 272 int 273 ultrix_sys_select(struct lwp *l, void *v, register_t *retval) 274 { 275 struct sys_select_args *uap = v; 276 struct timeval atv; 277 int error; 278 279 /* Limit number of FDs selected on to the native maximum */ 280 281 if (SCARG(uap, nd) > FD_SETSIZE) 282 SCARG(uap, nd) = FD_SETSIZE; 283 284 /* Check for negative timeval */ 285 if (SCARG(uap, tv)) { 286 error = copyin((caddr_t)SCARG(uap, tv), (caddr_t)&atv, 287 sizeof(atv)); 288 if (error) 289 goto done; 290 #ifdef DEBUG 291 /* Ultrix clients sometimes give negative timeouts? */ 292 if (atv.tv_sec < 0 || atv.tv_usec < 0) 293 printf("ultrix select( %ld, %ld): negative timeout\n", 294 atv.tv_sec, atv.tv_usec); 295 #endif 296 297 } 298 error = sys_select(l, (void*) uap, retval); 299 if (error == EINVAL) 300 printf("ultrix select: bad args?\n"); 301 302 done: 303 return error; 304 } 305 306 #if defined(NFS) 307 int 308 async_daemon(struct lwp *l, void *v, register_t *retval) 309 { 310 struct sys_nfssvc_args ouap; 311 312 SCARG(&ouap, flag) = NFSSVC_BIOD; 313 SCARG(&ouap, argp) = NULL; 314 315 return (sys_nfssvc(l, &ouap, retval)); 316 } 317 #endif /* NFS */ 318 319 320 #define SUN__MAP_NEW 0x80000000 /* if not, old mmap & cannot handle */ 321 322 int 323 ultrix_sys_mmap(struct lwp *l, void *v, register_t *retval) 324 { 325 struct ultrix_sys_mmap_args *uap = v; 326 struct sys_mmap_args ouap; 327 328 /* 329 * Verify the arguments. 330 */ 331 if (SCARG(uap, prot) & ~(PROT_READ|PROT_WRITE|PROT_EXEC)) 332 return (EINVAL); /* XXX still needed? */ 333 334 if ((SCARG(uap, flags) & SUN__MAP_NEW) == 0) 335 return (EINVAL); 336 337 SCARG(&ouap, flags) = SCARG(uap, flags) & ~SUN__MAP_NEW; 338 SCARG(&ouap, addr) = SCARG(uap, addr); 339 SCARG(&ouap, len) = SCARG(uap, len); 340 SCARG(&ouap, prot) = SCARG(uap, prot); 341 SCARG(&ouap, fd) = SCARG(uap, fd); 342 SCARG(&ouap, pos) = SCARG(uap, pos); 343 344 return (sys_mmap(l, &ouap, retval)); 345 } 346 347 int 348 ultrix_sys_setsockopt(struct lwp *l, void *v, register_t *retval) 349 { 350 struct ultrix_sys_setsockopt_args *uap = v; 351 struct proc *p = l->l_proc; 352 struct file *fp; 353 struct mbuf *m = NULL; 354 int error; 355 356 /* getsock() will use the descriptor for us */ 357 if ((error = getsock(p->p_fd, SCARG(uap, s), &fp)) != 0) 358 return (error); 359 #define SO_DONTLINGER (~SO_LINGER) 360 if (SCARG(uap, name) == SO_DONTLINGER) { 361 m = m_get(M_WAIT, MT_SOOPTS); 362 mtod(m, struct linger *)->l_onoff = 0; 363 m->m_len = sizeof(struct linger); 364 error = sosetopt((struct socket *)fp->f_data, SCARG(uap, level), 365 SO_LINGER, m); 366 } 367 if (SCARG(uap, level) == IPPROTO_IP) { 368 #define EMUL_IP_MULTICAST_IF 2 369 #define EMUL_IP_MULTICAST_TTL 3 370 #define EMUL_IP_MULTICAST_LOOP 4 371 #define EMUL_IP_ADD_MEMBERSHIP 5 372 #define EMUL_IP_DROP_MEMBERSHIP 6 373 static const int ipoptxlat[] = { 374 IP_MULTICAST_IF, 375 IP_MULTICAST_TTL, 376 IP_MULTICAST_LOOP, 377 IP_ADD_MEMBERSHIP, 378 IP_DROP_MEMBERSHIP 379 }; 380 if (SCARG(uap, name) >= EMUL_IP_MULTICAST_IF && 381 SCARG(uap, name) <= EMUL_IP_DROP_MEMBERSHIP) { 382 SCARG(uap, name) = 383 ipoptxlat[SCARG(uap, name) - EMUL_IP_MULTICAST_IF]; 384 } 385 } 386 if (SCARG(uap, valsize) > MLEN) { 387 error = EINVAL; 388 goto out; 389 } 390 if (SCARG(uap, val)) { 391 m = m_get(M_WAIT, MT_SOOPTS); 392 error = copyin(SCARG(uap, val), mtod(m, caddr_t), 393 (u_int)SCARG(uap, valsize)); 394 if (error) { 395 (void) m_free(m); 396 goto out; 397 } 398 m->m_len = SCARG(uap, valsize); 399 } 400 error = sosetopt((struct socket *)fp->f_data, SCARG(uap, level), 401 SCARG(uap, name), m); 402 out: 403 FILE_UNUSE(fp, l); 404 return (error); 405 } 406 407 #define ULTRIX__SYS_NMLN 32 408 409 struct ultrix_utsname { 410 char sysname[ULTRIX__SYS_NMLN]; 411 char nodename[ULTRIX__SYS_NMLN]; 412 char release[ULTRIX__SYS_NMLN]; 413 char version[ULTRIX__SYS_NMLN]; 414 char machine[ULTRIX__SYS_NMLN]; 415 }; 416 417 int 418 ultrix_sys_uname(struct lwp *l, void *v, register_t *retval) 419 { 420 struct ultrix_sys_uname_args *uap = v; 421 struct ultrix_utsname sut; 422 const char *cp; 423 char *dp, *ep; 424 425 memset(&sut, 0, sizeof(sut)); 426 427 strncpy(sut.sysname, ostype, sizeof(sut.sysname) - 1); 428 strncpy(sut.nodename, hostname, sizeof(sut.nodename) - 1); 429 strncpy(sut.release, osrelease, sizeof(sut.release) - 1); 430 dp = sut.version; 431 ep = &sut.version[sizeof(sut.version) - 1]; 432 for (cp = version; *cp && *cp != '('; cp++) 433 ; 434 for (cp++; *cp && *cp != ')' && dp < ep; cp++) 435 *dp++ = *cp; 436 for (; *cp && *cp != '#'; cp++) 437 ; 438 for (; *cp && *cp != ':' && dp < ep; cp++) 439 *dp++ = *cp; 440 *dp = '\0'; 441 strncpy(sut.machine, machine, sizeof(sut.machine) - 1); 442 443 return copyout((caddr_t)&sut, (caddr_t)SCARG(uap, name), 444 sizeof(struct ultrix_utsname)); 445 } 446 447 int 448 ultrix_sys_setpgrp(struct lwp *l, void *v, register_t *retval) 449 { 450 struct ultrix_sys_setpgrp_args *uap = v; 451 struct proc *p = l->l_proc; 452 453 /* 454 * difference to our setpgid call is to include backwards 455 * compatibility to pre-setsid() binaries. Do setsid() 456 * instead of setpgid() in those cases where the process 457 * tries to create a new session the old way. 458 */ 459 if (!SCARG(uap, pgid) && 460 (!SCARG(uap, pid) || SCARG(uap, pid) == p->p_pid)) 461 return sys_setsid(l, uap, retval); 462 else 463 return sys_setpgid(l, uap, retval); 464 } 465 466 #if defined (NFSSERVER) 467 int 468 ultrix_sys_nfssvc(struct lwp *l, void *v, register_t *retval) 469 { 470 471 #if 0 /* XXX */ 472 struct ultrix_sys_nfssvc_args *uap = v; 473 struct emul *e = p->p_emul; 474 struct sys_nfssvc_args outuap; 475 struct sockaddr sa; 476 int error; 477 caddr_t sg = stackgap_init(p, 0); 478 479 memset(&outuap, 0, sizeof outuap); 480 SCARG(&outuap, fd) = SCARG(uap, fd); 481 SCARG(&outuap, mskval) = stackgap_alloc(p, &sg, sizeof sa); 482 SCARG(&outuap, msklen) = sizeof sa; 483 SCARG(&outuap, mtchval) = stackgap_alloc(p, &sg, sizeof sa); 484 SCARG(&outuap, mtchlen) = sizeof sa; 485 486 memset(&sa, 0, sizeof sa); 487 if (error = copyout(&sa, SCARG(&outuap, mskval), SCARG(&outuap, msklen))) 488 return (error); 489 if (error = copyout(&sa, SCARG(&outuap, mtchval), SCARG(&outuap, mtchlen))) 490 return (error); 491 492 return nfssvc(l, &outuap, retval); 493 #else 494 return (ENOSYS); 495 #endif 496 } 497 #endif /* NFSSERVER */ 498 499 struct ultrix_ustat { 500 daddr_t f_tfree; /* total free */ 501 uint32_t f_tinode; /* total inodes free */ 502 char f_fname[6]; /* filsys name */ 503 char f_fpack[6]; /* filsys pack name */ 504 }; 505 506 int 507 ultrix_sys_ustat(struct lwp *l, void *v, register_t *retval) 508 { 509 struct ultrix_sys_ustat_args *uap = v; 510 struct ultrix_ustat us; 511 int error; 512 513 memset(&us, 0, sizeof us); 514 515 /* 516 * XXX: should set f_tfree and f_tinode at least 517 * How do we translate dev -> fstat? (and then to ultrix_ustat) 518 */ 519 520 if ((error = copyout(&us, SCARG(uap, buf), sizeof us)) != 0) 521 return (error); 522 return 0; 523 } 524 525 int 526 ultrix_sys_quotactl(struct lwp *l, void *v, register_t *retval) 527 { 528 529 #ifdef notyet 530 struct ultrix_sys_quotactl_args *uap = v; 531 #endif 532 533 return EINVAL; 534 } 535 536 int 537 ultrix_sys_vhangup(struct lwp *l, void *v, register_t *retval) 538 { 539 540 return 0; 541 } 542 543 544 /* 545 * RISC Ultrix cache control syscalls 546 */ 547 #ifdef __mips 548 int 549 ultrix_sys_cacheflush(struct lwp *l, void *v, register_t *retval) 550 { 551 struct ultrix_sys_cacheflush_args /* { 552 syscallarg(void *) addr; 553 syscallarg(unsigned) nbytes; 554 syscallarg(int) flag; 555 } */ *uap = v; 556 struct proc *p = l->l_proc; 557 vaddr_t va = (vaddr_t)SCARG(uap, addr); 558 int nbytes = SCARG(uap, nbytes); 559 int whichcache = SCARG(uap, whichcache); 560 561 return (mips_user_cacheflush(p, va, nbytes, whichcache)); 562 } 563 564 565 int 566 ultrix_sys_cachectl(struct lwp *l, void *v, register_t *retval) 567 { 568 struct ultrix_sys_cachectl_args /* { 569 syscallarg(void *) addr; 570 syscallarg(int) nbytes; 571 syscallarg(int) cacheop; 572 } */ *uap = v; 573 struct proc *p = l->l_proc; 574 vaddr_t va = (vaddr_t)SCARG(uap, addr); 575 int nbytes = SCARG(uap, nbytes); 576 int cacheop = SCARG(uap, cacheop); 577 578 return mips_user_cachectl(p, va, nbytes, cacheop); 579 } 580 581 #endif /* __mips */ 582 583 584 int 585 ultrix_sys_exportfs(struct lwp *l, void *v, register_t *retval) 586 { 587 #ifdef notyet 588 struct ultrix_sys_exportfs_args *uap = v; 589 #endif 590 591 /* 592 * XXX: should perhaps translate into a mount(2) 593 * with MOUNT_EXPORT? 594 */ 595 return 0; 596 } 597 598 int 599 ultrix_sys_sigpending(struct lwp *l, void *v, register_t *retval) 600 { 601 struct ultrix_sys_sigpending_args *uap = v; 602 sigset_t ss; 603 int mask; 604 605 sigpending1(l->l_proc, &ss); 606 mask = ss.__bits[0]; 607 608 return (copyout((caddr_t)&mask, (caddr_t)SCARG(uap, mask), sizeof(int))); 609 } 610 611 int 612 ultrix_sys_sigreturn(struct lwp *l, void *v, register_t *retval) 613 { 614 struct ultrix_sys_sigreturn_args *uap = v; 615 616 /* struct sigcontext13 is close enough to Ultrix */ 617 618 return (compat_13_sys_sigreturn(l, uap, retval)); 619 } 620 621 int 622 ultrix_sys_sigcleanup(struct lwp *l, void *v, register_t *retval) 623 { 624 struct ultrix_sys_sigcleanup_args *uap = v; 625 626 /* struct sigcontext13 is close enough to Ultrix */ 627 628 return (compat_13_sys_sigreturn(l, uap, retval)); 629 } 630 631 int 632 ultrix_sys_sigsuspend(struct lwp *l, void *v, register_t *retval) 633 { 634 struct ultrix_sys_sigsuspend_args *uap = v; 635 int mask = SCARG(uap, mask); 636 sigset_t ss; 637 638 ss.__bits[0] = mask; 639 ss.__bits[1] = 0; 640 ss.__bits[2] = 0; 641 ss.__bits[3] = 0; 642 643 return (sigsuspend1(l->l_proc, &ss)); 644 } 645 646 #define ULTRIX_SV_ONSTACK 0x0001 /* take signal on signal stack */ 647 #define ULTRIX_SV_INTERRUPT 0x0002 /* do not restart system on signal return */ 648 #define ULTRIX_SV_OLDSIG 0x1000 /* Emulate old signal() for POSIX */ 649 650 int 651 ultrix_sys_sigvec(struct lwp *l, void *v, register_t *retval) 652 { 653 struct ultrix_sys_sigvec_args *uap = v; 654 struct sigvec nsv, osv; 655 struct sigaction nsa, osa; 656 int error; 657 658 if (SCARG(uap, nsv)) { 659 error = copyin(SCARG(uap, nsv), &nsv, sizeof(nsv)); 660 if (error) 661 return (error); 662 nsa.sa_handler = nsv.sv_handler; 663 #if 0 /* documentation */ 664 /* ONSTACK is identical */ 665 nsa.sa_flags = nsv.sv_flags & ULTRIX_SV_ONSTACK; 666 if ((nsv.sv_flags & ULTRIX_SV_OLDSIG) 667 /* old signal() - always restart */ 668 || (!(nsv.sv_flags & ULTRIX_SV_INTERRUPT)) 669 /* inverted meaning (same bit) */ 670 ) 671 nsa.sa_flags |= SA_RESTART; 672 #else /* optimized - assuming ULTRIX_SV_OLDSIG=>!ULTRIX_SV_INTERRUPT */ 673 nsa.sa_flags = nsv.sv_flags & ~ULTRIX_SV_OLDSIG; 674 nsa.sa_flags ^= SA_RESTART; 675 #endif 676 native_sigset13_to_sigset(&nsv.sv_mask, &nsa.sa_mask); 677 } 678 error = sigaction1(l->l_proc, SCARG(uap, signum), 679 SCARG(uap, nsv) ? &nsa : 0, SCARG(uap, osv) ? &osa : 0, 680 NULL, 0); 681 if (error) 682 return (error); 683 if (SCARG(uap, osv)) { 684 osv.sv_handler = osa.sa_handler; 685 osv.sv_flags = osa.sa_flags ^ SA_RESTART; 686 osv.sv_flags &= (ULTRIX_SV_ONSTACK | ULTRIX_SV_INTERRUPT); 687 native_sigset_to_sigset13(&osa.sa_mask, &osv.sv_mask); 688 error = copyout(&osv, SCARG(uap, osv), sizeof(osv)); 689 if (error) 690 return (error); 691 } 692 return (0); 693 } 694 695 int 696 ultrix_sys_shmsys(struct lwp *l, void *v, register_t *retval) 697 { 698 699 #ifdef SYSVSHM 700 /* Ultrix SVSHM weirndess: */ 701 struct ultrix_sys_shmsys_args *uap = v; 702 struct sys_shmat_args shmat_args; 703 struct compat_14_sys_shmctl_args shmctl_args; 704 struct sys_shmdt_args shmdt_args; 705 struct sys_shmget_args shmget_args; 706 707 708 switch (SCARG(uap, shmop)) { 709 case 0: /* Ultrix shmat() */ 710 SCARG(&shmat_args, shmid) = SCARG(uap, a2); 711 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a3); 712 SCARG(&shmat_args, shmflg) = SCARG(uap, a4); 713 return (sys_shmat(l, &shmat_args, retval)); 714 715 case 1: /* Ultrix shmctl() */ 716 SCARG(&shmctl_args, shmid) = SCARG(uap, a2); 717 SCARG(&shmctl_args, cmd) = SCARG(uap, a3); 718 SCARG(&shmctl_args, buf) = (struct shmid_ds14 *)SCARG(uap, a4); 719 return (compat_14_sys_shmctl(l, &shmctl_args, retval)); 720 721 case 2: /* Ultrix shmdt() */ 722 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a2); 723 return (sys_shmdt(l, &shmdt_args, retval)); 724 725 case 3: /* Ultrix shmget() */ 726 SCARG(&shmget_args, key) = SCARG(uap, a2); 727 SCARG(&shmget_args, size) = SCARG(uap, a3); 728 SCARG(&shmget_args, shmflg) = SCARG(uap, a4) 729 & (IPC_CREAT|IPC_EXCL|IPC_NOWAIT); 730 return (sys_shmget(l, &shmget_args, retval)); 731 732 default: 733 return (EINVAL); 734 } 735 #else 736 return (EOPNOTSUPP); 737 #endif /* SYSVSHM */ 738 } 739 740 static int 741 ultrix_to_bsd_flock(struct ultrix_flock *ufl, struct flock *fl) 742 { 743 744 fl->l_start = ufl->l_start; 745 fl->l_len = ufl->l_len; 746 fl->l_pid = ufl->l_pid; 747 fl->l_whence = ufl->l_whence; 748 749 switch (ufl->l_type) { 750 case ULTRIX_F_RDLCK: 751 fl->l_type = F_RDLCK; 752 break; 753 case ULTRIX_F_WRLCK: 754 fl->l_type = F_WRLCK; 755 break; 756 case ULTRIX_F_UNLCK: 757 fl->l_type = F_UNLCK; 758 break; 759 default: 760 return (EINVAL); 761 } 762 763 return (0); 764 } 765 766 static void 767 bsd_to_ultrix_flock(struct flock *fl, struct ultrix_flock *ufl) 768 { 769 770 ufl->l_start = fl->l_start; 771 ufl->l_len = fl->l_len; 772 ufl->l_pid = fl->l_pid; 773 ufl->l_whence = fl->l_whence; 774 775 switch (fl->l_type) { 776 case F_RDLCK: 777 ufl->l_type = ULTRIX_F_RDLCK; 778 break; 779 case F_WRLCK: 780 ufl->l_type = ULTRIX_F_WRLCK; 781 break; 782 case F_UNLCK: 783 ufl->l_type = ULTRIX_F_UNLCK; 784 break; 785 } 786 } 787 788 int 789 ultrix_sys_fcntl(struct lwp *l, void *v, register_t *retval) 790 { 791 struct ultrix_sys_fcntl_args *uap = v; 792 struct proc *p = l->l_proc; 793 int error; 794 struct ultrix_flock ufl; 795 struct flock fl, *flp = NULL; /* XXX gcc */ 796 caddr_t sg; 797 struct sys_fcntl_args *args, fca; 798 799 switch (SCARG(uap, cmd)) { 800 case F_GETLK: 801 case F_SETLK: 802 case F_SETLKW: 803 error = copyin(SCARG(uap, arg), &ufl, sizeof(ufl)); 804 if (error) 805 return (error); 806 error = ultrix_to_bsd_flock(&ufl, &fl); 807 if (error) 808 return (error); 809 sg = stackgap_init(p, 0); 810 flp = (struct flock *)stackgap_alloc(p, &sg, sizeof(*flp)); 811 error = copyout(&fl, flp, sizeof(*flp)); 812 if (error) 813 return (error); 814 815 SCARG(&fca, fd) = SCARG(uap, fd); 816 SCARG(&fca, cmd) = SCARG(uap, cmd); 817 SCARG(&fca, arg) = flp; 818 args = &fca; 819 break; 820 default: 821 args = v; 822 break; 823 } 824 825 error = sys_fcntl(l, args, retval); 826 if (error) 827 return (error); 828 829 switch (SCARG(uap, cmd)) { 830 case F_GETLK: 831 error = copyin(flp, &fl, sizeof(fl)); 832 if (error) 833 return (error); 834 bsd_to_ultrix_flock(&fl, &ufl); 835 error = copyout(&ufl, SCARG(uap, arg), sizeof(ufl)); 836 break; 837 } 838 839 return (error); 840 } 841
Indexes created Fri Oct 03 02:09:57 GMT 2025