ultrix_misc.c revision 1.102
1 /* $NetBSD: ultrix_misc.c,v 1.102 2005/08/19 02:04:03 christos 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 1.102 2005/08/19 02:04:03 christos 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 #ifdef __mips 146 #include <mips/cachectl.h> 147 #include <mips/frame.h> 148 #endif 149 150 static int ultrix_to_bsd_flock(struct ultrix_flock *, struct flock *); 151 static void bsd_to_ultrix_flock(struct flock *, struct ultrix_flock *); 152 153 extern struct sysent ultrix_sysent[]; 154 extern const char * const ultrix_syscallnames[]; 155 extern char ultrix_sigcode[], ultrix_esigcode[]; 156 157 struct uvm_object *emul_ultrix_object; 158 159 #ifndef __HAVE_SYSCALL_INTERN 160 void syscall(void); 161 #endif 162 163 const struct emul emul_ultrix = { 164 "ultrix", 165 "/emul/ultrix", 166 #ifndef __HAVE_MINIMAL_EMUL 167 0, 168 NULL, 169 ULTRIX_SYS_syscall, 170 ULTRIX_SYS_NSYSENT, 171 #endif 172 ultrix_sysent, 173 ultrix_syscallnames, 174 #ifdef __mips 175 sendsig_sigcontext, 176 #else /* vax */ 177 sendsig, 178 #endif 179 trapsignal, 180 NULL, 181 ultrix_sigcode, 182 ultrix_esigcode, 183 &emul_ultrix_object, 184 setregs, 185 NULL, 186 NULL, 187 NULL, 188 NULL, 189 NULL, 190 #ifdef __HAVE_SYSCALL_INTERN 191 syscall_intern, 192 #else 193 syscall, 194 #endif 195 NULL, 196 NULL, 197 198 uvm_default_mapaddr, 199 }; 200 201 #define GSI_PROG_ENV 1 202 203 int 204 ultrix_sys_getsysinfo(struct lwp *l, void *v, register_t *retval) 205 { 206 struct ultrix_sys_getsysinfo_args *uap = v; 207 static short progenv = 0; 208 209 switch (SCARG(uap, op)) { 210 /* operations implemented: */ 211 case GSI_PROG_ENV: 212 if (SCARG(uap, nbytes) < sizeof(short)) 213 return EINVAL; 214 *retval = 1; 215 return (copyout(&progenv, SCARG(uap, buffer), sizeof(short))); 216 default: 217 *retval = 0; /* info unavail */ 218 return 0; 219 } 220 } 221 222 int 223 ultrix_sys_setsysinfo(struct lwp *l, void *v, register_t *retval) 224 { 225 226 #ifdef notyet 227 struct ultrix_sys_setsysinfo_args *uap = v; 228 #endif 229 230 *retval = 0; 231 return 0; 232 } 233 234 int 235 ultrix_sys_waitpid(struct lwp *l, void *v, register_t *retval) 236 { 237 struct ultrix_sys_waitpid_args *uap = v; 238 struct sys_wait4_args ua; 239 240 SCARG(&ua, pid) = SCARG(uap, pid); 241 SCARG(&ua, status) = SCARG(uap, status); 242 SCARG(&ua, options) = SCARG(uap, options); 243 SCARG(&ua, rusage) = 0; 244 245 return (sys_wait4(l, &ua, retval)); 246 } 247 248 int 249 ultrix_sys_wait3(struct lwp *l, void *v, register_t *retval) 250 { 251 struct ultrix_sys_wait3_args *uap = v; 252 struct sys_wait4_args ua; 253 254 SCARG(&ua, pid) = -1; 255 SCARG(&ua, status) = SCARG(uap, status); 256 SCARG(&ua, options) = SCARG(uap, options); 257 SCARG(&ua, rusage) = SCARG(uap, rusage); 258 259 return (sys_wait4(l, &ua, retval)); 260 } 261 262 /* 263 * Ultrix binaries pass in FD_MAX as the first arg to select(). 264 * On Ultrix, FD_MAX is 4096, which is more than the NetBSD sys_select() 265 * can handle. 266 * Since we can't have more than the (native) FD_MAX descriptors open, 267 * limit nfds to at most FD_MAX. 268 */ 269 int 270 ultrix_sys_select(struct lwp *l, void *v, register_t *retval) 271 { 272 struct sys_select_args *uap = v; 273 struct timeval atv; 274 int error; 275 276 /* Limit number of FDs selected on to the native maximum */ 277 278 if (SCARG(uap, nd) > FD_SETSIZE) 279 SCARG(uap, nd) = FD_SETSIZE; 280 281 /* Check for negative timeval */ 282 if (SCARG(uap, tv)) { 283 error = copyin((caddr_t)SCARG(uap, tv), (caddr_t)&atv, 284 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 = sys_select(l, (void*) uap, retval); 296 if (error == EINVAL) 297 printf("ultrix select: bad args?\n"); 298 299 done: 300 return error; 301 } 302 303 #if defined(NFS) 304 int 305 async_daemon(struct lwp *l, void *v, register_t *retval) 306 { 307 struct sys_nfssvc_args ouap; 308 309 SCARG(&ouap, flag) = NFSSVC_BIOD; 310 SCARG(&ouap, argp) = NULL; 311 312 return (sys_nfssvc(l, &ouap, retval)); 313 } 314 #endif /* NFS */ 315 316 317 #define SUN__MAP_NEW 0x80000000 /* if not, old mmap & cannot handle */ 318 319 int 320 ultrix_sys_mmap(struct lwp *l, void *v, register_t *retval) 321 { 322 struct ultrix_sys_mmap_args *uap = v; 323 struct sys_mmap_args ouap; 324 325 /* 326 * Verify the arguments. 327 */ 328 if (SCARG(uap, prot) & ~(PROT_READ|PROT_WRITE|PROT_EXEC)) 329 return (EINVAL); /* XXX still needed? */ 330 331 if ((SCARG(uap, flags) & SUN__MAP_NEW) == 0) 332 return (EINVAL); 333 334 SCARG(&ouap, flags) = SCARG(uap, flags) & ~SUN__MAP_NEW; 335 SCARG(&ouap, addr) = SCARG(uap, addr); 336 SCARG(&ouap, len) = SCARG(uap, len); 337 SCARG(&ouap, prot) = SCARG(uap, prot); 338 SCARG(&ouap, fd) = SCARG(uap, fd); 339 SCARG(&ouap, pos) = SCARG(uap, pos); 340 341 return (sys_mmap(l, &ouap, retval)); 342 } 343 344 int 345 ultrix_sys_setsockopt(struct lwp *l, void *v, register_t *retval) 346 { 347 struct ultrix_sys_setsockopt_args *uap = v; 348 struct proc *p = l->l_proc; 349 struct file *fp; 350 struct mbuf *m = NULL; 351 int error; 352 353 /* getsock() will use the descriptor for us */ 354 if ((error = getsock(p->p_fd, SCARG(uap, s), &fp)) != 0) 355 return (error); 356 #define SO_DONTLINGER (~SO_LINGER) 357 if (SCARG(uap, name) == SO_DONTLINGER) { 358 m = m_get(M_WAIT, MT_SOOPTS); 359 mtod(m, struct linger *)->l_onoff = 0; 360 m->m_len = sizeof(struct linger); 361 error = sosetopt((struct socket *)fp->f_data, SCARG(uap, level), 362 SO_LINGER, m); 363 } 364 if (SCARG(uap, level) == IPPROTO_IP) { 365 #define EMUL_IP_MULTICAST_IF 2 366 #define EMUL_IP_MULTICAST_TTL 3 367 #define EMUL_IP_MULTICAST_LOOP 4 368 #define EMUL_IP_ADD_MEMBERSHIP 5 369 #define EMUL_IP_DROP_MEMBERSHIP 6 370 static const int ipoptxlat[] = { 371 IP_MULTICAST_IF, 372 IP_MULTICAST_TTL, 373 IP_MULTICAST_LOOP, 374 IP_ADD_MEMBERSHIP, 375 IP_DROP_MEMBERSHIP 376 }; 377 if (SCARG(uap, name) >= EMUL_IP_MULTICAST_IF && 378 SCARG(uap, name) <= EMUL_IP_DROP_MEMBERSHIP) { 379 SCARG(uap, name) = 380 ipoptxlat[SCARG(uap, name) - EMUL_IP_MULTICAST_IF]; 381 } 382 } 383 if (SCARG(uap, valsize) > MLEN) { 384 error = EINVAL; 385 goto out; 386 } 387 if (SCARG(uap, val)) { 388 m = m_get(M_WAIT, MT_SOOPTS); 389 error = copyin(SCARG(uap, val), mtod(m, caddr_t), 390 (u_int)SCARG(uap, valsize)); 391 if (error) { 392 (void) m_free(m); 393 goto out; 394 } 395 m->m_len = SCARG(uap, valsize); 396 } 397 error = sosetopt((struct socket *)fp->f_data, SCARG(uap, level), 398 SCARG(uap, name), m); 399 out: 400 FILE_UNUSE(fp, p); 401 return (error); 402 } 403 404 #define ULTRIX__SYS_NMLN 32 405 406 struct ultrix_utsname { 407 char sysname[ULTRIX__SYS_NMLN]; 408 char nodename[ULTRIX__SYS_NMLN]; 409 char release[ULTRIX__SYS_NMLN]; 410 char version[ULTRIX__SYS_NMLN]; 411 char machine[ULTRIX__SYS_NMLN]; 412 }; 413 414 int 415 ultrix_sys_uname(struct lwp *l, void *v, register_t *retval) 416 { 417 struct ultrix_sys_uname_args *uap = v; 418 struct ultrix_utsname sut; 419 const char *cp; 420 char *dp, *ep; 421 422 memset(&sut, 0, sizeof(sut)); 423 424 strncpy(sut.sysname, ostype, sizeof(sut.sysname) - 1); 425 strncpy(sut.nodename, hostname, sizeof(sut.nodename) - 1); 426 strncpy(sut.release, osrelease, sizeof(sut.release) - 1); 427 dp = sut.version; 428 ep = &sut.version[sizeof(sut.version) - 1]; 429 for (cp = version; *cp && *cp != '('; cp++) 430 ; 431 for (cp++; *cp && *cp != ')' && dp < ep; cp++) 432 *dp++ = *cp; 433 for (; *cp && *cp != '#'; cp++) 434 ; 435 for (; *cp && *cp != ':' && dp < ep; cp++) 436 *dp++ = *cp; 437 *dp = '\0'; 438 strncpy(sut.machine, machine, sizeof(sut.machine) - 1); 439 440 return copyout((caddr_t)&sut, (caddr_t)SCARG(uap, name), 441 sizeof(struct ultrix_utsname)); 442 } 443 444 int 445 ultrix_sys_setpgrp(struct lwp *l, void *v, register_t *retval) 446 { 447 struct ultrix_sys_setpgrp_args *uap = v; 448 struct proc *p = l->l_proc; 449 450 /* 451 * difference to our setpgid call is to include backwards 452 * compatibility to pre-setsid() binaries. Do setsid() 453 * instead of setpgid() in those cases where the process 454 * tries to create a new session the old way. 455 */ 456 if (!SCARG(uap, pgid) && 457 (!SCARG(uap, pid) || SCARG(uap, pid) == p->p_pid)) 458 return sys_setsid(l, uap, retval); 459 else 460 return sys_setpgid(l, uap, retval); 461 } 462 463 #if defined (NFSSERVER) 464 int 465 ultrix_sys_nfssvc(struct lwp *l, void *v, register_t *retval) 466 { 467 468 #if 0 /* XXX */ 469 struct ultrix_sys_nfssvc_args *uap = v; 470 struct emul *e = p->p_emul; 471 struct sys_nfssvc_args outuap; 472 struct sockaddr sa; 473 int error; 474 caddr_t sg = stackgap_init(p, 0); 475 476 memset(&outuap, 0, sizeof outuap); 477 SCARG(&outuap, fd) = SCARG(uap, fd); 478 SCARG(&outuap, mskval) = stackgap_alloc(p, &sg, sizeof sa); 479 SCARG(&outuap, msklen) = sizeof sa; 480 SCARG(&outuap, mtchval) = stackgap_alloc(p, &sg, sizeof sa); 481 SCARG(&outuap, mtchlen) = sizeof sa; 482 483 memset(&sa, 0, sizeof sa); 484 if (error = copyout(&sa, SCARG(&outuap, mskval), SCARG(&outuap, msklen))) 485 return (error); 486 if (error = copyout(&sa, SCARG(&outuap, mtchval), SCARG(&outuap, mtchlen))) 487 return (error); 488 489 return nfssvc(l, &outuap, retval); 490 #else 491 return (ENOSYS); 492 #endif 493 } 494 #endif /* NFSSERVER */ 495 496 struct ultrix_ustat { 497 daddr_t f_tfree; /* total free */ 498 uint32_t f_tinode; /* total inodes free */ 499 char f_fname[6]; /* filsys name */ 500 char f_fpack[6]; /* filsys pack name */ 501 }; 502 503 int 504 ultrix_sys_ustat(struct lwp *l, void *v, register_t *retval) 505 { 506 struct ultrix_sys_ustat_args *uap = v; 507 struct ultrix_ustat us; 508 int error; 509 510 memset(&us, 0, sizeof us); 511 512 /* 513 * XXX: should set f_tfree and f_tinode at least 514 * How do we translate dev -> fstat? (and then to ultrix_ustat) 515 */ 516 517 if ((error = copyout(&us, SCARG(uap, buf), sizeof us)) != 0) 518 return (error); 519 return 0; 520 } 521 522 int 523 ultrix_sys_quotactl(struct lwp *l, void *v, register_t *retval) 524 { 525 526 #ifdef notyet 527 struct ultrix_sys_quotactl_args *uap = v; 528 #endif 529 530 return EINVAL; 531 } 532 533 int 534 ultrix_sys_vhangup(struct lwp *l, void *v, register_t *retval) 535 { 536 537 return 0; 538 } 539 540 541 /* 542 * RISC Ultrix cache control syscalls 543 */ 544 #ifdef __mips 545 int 546 ultrix_sys_cacheflush(struct lwp *l, void *v, register_t *retval) 547 { 548 struct ultrix_sys_cacheflush_args /* { 549 syscallarg(void *) addr; 550 syscallarg(unsigned) nbytes; 551 syscallarg(int) flag; 552 } */ *uap = v; 553 struct proc *p = l->l_proc; 554 vaddr_t va = (vaddr_t)SCARG(uap, addr); 555 int nbytes = SCARG(uap, nbytes); 556 int whichcache = SCARG(uap, whichcache); 557 558 return (mips_user_cacheflush(p, va, nbytes, whichcache)); 559 } 560 561 562 int 563 ultrix_sys_cachectl(struct lwp *l, void *v, register_t *retval) 564 { 565 struct ultrix_sys_cachectl_args /* { 566 syscallarg(void *) addr; 567 syscallarg(int) nbytes; 568 syscallarg(int) cacheop; 569 } */ *uap = v; 570 struct proc *p = l->l_proc; 571 vaddr_t va = (vaddr_t)SCARG(uap, addr); 572 int nbytes = SCARG(uap, nbytes); 573 int cacheop = SCARG(uap, cacheop); 574 575 return mips_user_cachectl(p, va, nbytes, cacheop); 576 } 577 578 #endif /* __mips */ 579 580 581 int 582 ultrix_sys_exportfs(struct lwp *l, void *v, register_t *retval) 583 { 584 #ifdef notyet 585 struct ultrix_sys_exportfs_args *uap = v; 586 #endif 587 588 /* 589 * XXX: should perhaps translate into a mount(2) 590 * with MOUNT_EXPORT? 591 */ 592 return 0; 593 } 594 595 int 596 ultrix_sys_sigpending(struct lwp *l, void *v, register_t *retval) 597 { 598 struct ultrix_sys_sigpending_args *uap = v; 599 sigset_t ss; 600 int mask; 601 602 sigpending1(l->l_proc, &ss); 603 mask = ss.__bits[0]; 604 605 return (copyout((caddr_t)&mask, (caddr_t)SCARG(uap, mask), sizeof(int))); 606 } 607 608 int 609 ultrix_sys_sigreturn(struct lwp *l, void *v, register_t *retval) 610 { 611 struct ultrix_sys_sigreturn_args *uap = v; 612 613 /* struct sigcontext13 is close enough to Ultrix */ 614 615 return (compat_13_sys_sigreturn(l, uap, retval)); 616 } 617 618 int 619 ultrix_sys_sigcleanup(struct lwp *l, void *v, register_t *retval) 620 { 621 struct ultrix_sys_sigcleanup_args *uap = v; 622 623 /* struct sigcontext13 is close enough to Ultrix */ 624 625 return (compat_13_sys_sigreturn(l, uap, retval)); 626 } 627 628 int 629 ultrix_sys_sigsuspend(struct lwp *l, void *v, register_t *retval) 630 { 631 struct ultrix_sys_sigsuspend_args *uap = v; 632 int mask = SCARG(uap, mask); 633 sigset_t ss; 634 635 ss.__bits[0] = mask; 636 ss.__bits[1] = 0; 637 ss.__bits[2] = 0; 638 ss.__bits[3] = 0; 639 640 return (sigsuspend1(l->l_proc, &ss)); 641 } 642 643 #define ULTRIX_SV_ONSTACK 0x0001 /* take signal on signal stack */ 644 #define ULTRIX_SV_INTERRUPT 0x0002 /* do not restart system on signal return */ 645 #define ULTRIX_SV_OLDSIG 0x1000 /* Emulate old signal() for POSIX */ 646 647 int 648 ultrix_sys_sigvec(struct lwp *l, void *v, register_t *retval) 649 { 650 struct ultrix_sys_sigvec_args *uap = v; 651 struct sigvec nsv, osv; 652 struct sigaction nsa, osa; 653 int error; 654 655 if (SCARG(uap, nsv)) { 656 error = copyin(SCARG(uap, nsv), &nsv, sizeof(nsv)); 657 if (error) 658 return (error); 659 nsa.sa_handler = nsv.sv_handler; 660 #if 0 /* documentation */ 661 /* ONSTACK is identical */ 662 nsa.sa_flags = nsv.sv_flags & ULTRIX_SV_ONSTACK; 663 if ((nsv.sv_flags & ULTRIX_SV_OLDSIG) 664 /* old signal() - always restart */ 665 || (!(nsv.sv_flags & ULTRIX_SV_INTERRUPT)) 666 /* inverted meaning (same bit) */ 667 ) 668 nsa.sa_flags |= SA_RESTART; 669 #else /* optimized - assuming ULTRIX_SV_OLDSIG=>!ULTRIX_SV_INTERRUPT */ 670 nsa.sa_flags = nsv.sv_flags & ~ULTRIX_SV_OLDSIG; 671 nsa.sa_flags ^= SA_RESTART; 672 #endif 673 native_sigset13_to_sigset(&nsv.sv_mask, &nsa.sa_mask); 674 } 675 error = sigaction1(l->l_proc, SCARG(uap, signum), 676 SCARG(uap, nsv) ? &nsa : 0, SCARG(uap, osv) ? &osa : 0, 677 NULL, 0); 678 if (error) 679 return (error); 680 if (SCARG(uap, osv)) { 681 osv.sv_handler = osa.sa_handler; 682 osv.sv_flags = osa.sa_flags ^ SA_RESTART; 683 osv.sv_flags &= (ULTRIX_SV_ONSTACK | ULTRIX_SV_INTERRUPT); 684 native_sigset_to_sigset13(&osa.sa_mask, &osv.sv_mask); 685 error = copyout(&osv, SCARG(uap, osv), sizeof(osv)); 686 if (error) 687 return (error); 688 } 689 return (0); 690 } 691 692 int 693 ultrix_sys_shmsys(struct lwp *l, void *v, register_t *retval) 694 { 695 696 #ifdef SYSVSHM 697 /* Ultrix SVSHM weirndess: */ 698 struct ultrix_sys_shmsys_args *uap = v; 699 struct sys_shmat_args shmat_args; 700 struct compat_14_sys_shmctl_args shmctl_args; 701 struct sys_shmdt_args shmdt_args; 702 struct sys_shmget_args shmget_args; 703 704 705 switch (SCARG(uap, shmop)) { 706 case 0: /* Ultrix shmat() */ 707 SCARG(&shmat_args, shmid) = SCARG(uap, a2); 708 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a3); 709 SCARG(&shmat_args, shmflg) = SCARG(uap, a4); 710 return (sys_shmat(l, &shmat_args, retval)); 711 712 case 1: /* Ultrix shmctl() */ 713 SCARG(&shmctl_args, shmid) = SCARG(uap, a2); 714 SCARG(&shmctl_args, cmd) = SCARG(uap, a3); 715 SCARG(&shmctl_args, buf) = (struct shmid_ds14 *)SCARG(uap, a4); 716 return (compat_14_sys_shmctl(l, &shmctl_args, retval)); 717 718 case 2: /* Ultrix shmdt() */ 719 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a2); 720 return (sys_shmdt(l, &shmdt_args, retval)); 721 722 case 3: /* Ultrix shmget() */ 723 SCARG(&shmget_args, key) = SCARG(uap, a2); 724 SCARG(&shmget_args, size) = SCARG(uap, a3); 725 SCARG(&shmget_args, shmflg) = SCARG(uap, a4) 726 & (IPC_CREAT|IPC_EXCL|IPC_NOWAIT); 727 return (sys_shmget(l, &shmget_args, retval)); 728 729 default: 730 return (EINVAL); 731 } 732 #else 733 return (EOPNOTSUPP); 734 #endif /* SYSVSHM */ 735 } 736 737 static int 738 ultrix_to_bsd_flock(struct ultrix_flock *ufl, struct flock *fl) 739 { 740 741 fl->l_start = ufl->l_start; 742 fl->l_len = ufl->l_len; 743 fl->l_pid = ufl->l_pid; 744 fl->l_whence = ufl->l_whence; 745 746 switch (ufl->l_type) { 747 case ULTRIX_F_RDLCK: 748 fl->l_type = F_RDLCK; 749 break; 750 case ULTRIX_F_WRLCK: 751 fl->l_type = F_WRLCK; 752 break; 753 case ULTRIX_F_UNLCK: 754 fl->l_type = F_UNLCK; 755 break; 756 default: 757 return (EINVAL); 758 } 759 760 return (0); 761 } 762 763 static void 764 bsd_to_ultrix_flock(struct flock *fl, struct ultrix_flock *ufl) 765 { 766 767 ufl->l_start = fl->l_start; 768 ufl->l_len = fl->l_len; 769 ufl->l_pid = fl->l_pid; 770 ufl->l_whence = fl->l_whence; 771 772 switch (fl->l_type) { 773 case F_RDLCK: 774 ufl->l_type = ULTRIX_F_RDLCK; 775 break; 776 case F_WRLCK: 777 ufl->l_type = ULTRIX_F_WRLCK; 778 break; 779 case F_UNLCK: 780 ufl->l_type = ULTRIX_F_UNLCK; 781 break; 782 } 783 } 784 785 int 786 ultrix_sys_fcntl(struct lwp *l, void *v, register_t *retval) 787 { 788 struct ultrix_sys_fcntl_args *uap = v; 789 struct proc *p = l->l_proc; 790 int error; 791 struct ultrix_flock ufl; 792 struct flock fl, *flp = NULL; /* XXX gcc */ 793 caddr_t sg; 794 struct sys_fcntl_args *args, fca; 795 796 switch (SCARG(uap, cmd)) { 797 case F_GETLK: 798 case F_SETLK: 799 case F_SETLKW: 800 error = copyin(SCARG(uap, arg), &ufl, sizeof(ufl)); 801 if (error) 802 return (error); 803 error = ultrix_to_bsd_flock(&ufl, &fl); 804 if (error) 805 return (error); 806 sg = stackgap_init(p, 0); 807 flp = (struct flock *)stackgap_alloc(p, &sg, sizeof(*flp)); 808 error = copyout(&fl, flp, sizeof(*flp)); 809 if (error) 810 return (error); 811 812 SCARG(&fca, fd) = SCARG(uap, fd); 813 SCARG(&fca, cmd) = SCARG(uap, cmd); 814 SCARG(&fca, arg) = flp; 815 args = &fca; 816 break; 817 default: 818 args = v; 819 break; 820 } 821 822 error = sys_fcntl(l, args, retval); 823 if (error) 824 return (error); 825 826 switch (SCARG(uap, cmd)) { 827 case F_GETLK: 828 error = copyin(flp, &fl, sizeof(fl)); 829 if (error) 830 return (error); 831 bsd_to_ultrix_flock(&fl, &ufl); 832 error = copyout(&ufl, SCARG(uap, arg), sizeof(ufl)); 833 break; 834 } 835 836 return (error); 837 } 838
Indexes created Tue Sep 23 14:10:03 GMT 2025