ultrix_misc.c revision 1.96
1 /* $NetBSD: ultrix_misc.c,v 1.96 2005/01/24 10:08:02 drochner 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 1.96 2005/01/24 10:08:02 drochner 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 <compat/ultrix/ultrix_syscall.h> 128 #include <compat/ultrix/ultrix_syscallargs.h> 129 #include <compat/common/compat_util.h> 130 131 #include <netinet/in.h> 132 133 #include <miscfs/specfs/specdev.h> 134 135 #include <nfs/rpcv2.h> 136 #include <nfs/nfsproto.h> 137 #include <nfs/nfs.h> 138 139 #include <sys/socketvar.h> /* sosetopt() */ 140 141 #include <compat/ultrix/ultrix_flock.h> 142 143 #ifdef __mips 144 #include <mips/cachectl.h> 145 #include <mips/frame.h> 146 #endif 147 148 static int ultrix_to_bsd_flock(struct ultrix_flock *, struct flock *); 149 static void bsd_to_ultrix_flock(struct flock *, struct ultrix_flock *); 150 151 extern struct sysent ultrix_sysent[]; 152 extern const char * const ultrix_syscallnames[]; 153 extern char ultrix_sigcode[], ultrix_esigcode[]; 154 #ifdef __HAVE_SYSCALL_INTERN 155 void syscall_intern(struct proc *); 156 #else 157 void syscall(void); 158 #endif 159 160 struct uvm_object *emul_ultrix_object; 161 162 const struct emul emul_ultrix = { 163 "ultrix", 164 "/emul/ultrix", 165 #ifndef __HAVE_MINIMAL_EMUL 166 0, 167 NULL, 168 ULTRIX_SYS_syscall, 169 ULTRIX_SYS_NSYSENT, 170 #endif 171 ultrix_sysent, 172 ultrix_syscallnames, 173 sendsig_sigcontext, 174 trapsignal, 175 NULL, 176 ultrix_sigcode, 177 ultrix_esigcode, 178 &emul_ultrix_object, 179 setregs, 180 NULL, 181 NULL, 182 NULL, 183 NULL, 184 NULL, 185 #ifdef __HAVE_SYSCALL_INTERN 186 syscall_intern, 187 #else 188 syscall, 189 #endif 190 NULL, 191 NULL, 192 }; 193 194 #define GSI_PROG_ENV 1 195 196 int 197 ultrix_sys_getsysinfo(struct lwp *l, void *v, register_t *retval) 198 { 199 struct ultrix_sys_getsysinfo_args *uap = v; 200 static short progenv = 0; 201 202 switch (SCARG(uap, op)) { 203 /* operations implemented: */ 204 case GSI_PROG_ENV: 205 if (SCARG(uap, nbytes) < sizeof(short)) 206 return EINVAL; 207 *retval = 1; 208 return (copyout(&progenv, SCARG(uap, buffer), sizeof(short))); 209 default: 210 *retval = 0; /* info unavail */ 211 return 0; 212 } 213 } 214 215 int 216 ultrix_sys_setsysinfo(struct lwp *l, void *v, register_t *retval) 217 { 218 219 #ifdef notyet 220 struct ultrix_sys_setsysinfo_args *uap = v; 221 #endif 222 223 *retval = 0; 224 return 0; 225 } 226 227 int 228 ultrix_sys_waitpid(struct lwp *l, void *v, register_t *retval) 229 { 230 struct ultrix_sys_waitpid_args *uap = v; 231 struct sys_wait4_args ua; 232 233 SCARG(&ua, pid) = SCARG(uap, pid); 234 SCARG(&ua, status) = SCARG(uap, status); 235 SCARG(&ua, options) = SCARG(uap, options); 236 SCARG(&ua, rusage) = 0; 237 238 return (sys_wait4(l, &ua, retval)); 239 } 240 241 int 242 ultrix_sys_wait3(struct lwp *l, void *v, register_t *retval) 243 { 244 struct ultrix_sys_wait3_args *uap = v; 245 struct sys_wait4_args ua; 246 247 SCARG(&ua, pid) = -1; 248 SCARG(&ua, status) = SCARG(uap, status); 249 SCARG(&ua, options) = SCARG(uap, options); 250 SCARG(&ua, rusage) = SCARG(uap, rusage); 251 252 return (sys_wait4(l, &ua, retval)); 253 } 254 255 /* 256 * Ultrix binaries pass in FD_MAX as the first arg to select(). 257 * On Ultrix, FD_MAX is 4096, which is more than the NetBSD sys_select() 258 * can handle. 259 * Since we can't have more than the (native) FD_MAX descriptors open, 260 * limit nfds to at most FD_MAX. 261 */ 262 int 263 ultrix_sys_select(struct lwp *l, void *v, register_t *retval) 264 { 265 struct sys_select_args *uap = v; 266 struct timeval atv; 267 int error; 268 269 /* Limit number of FDs selected on to the native maximum */ 270 271 if (SCARG(uap, nd) > FD_SETSIZE) 272 SCARG(uap, nd) = FD_SETSIZE; 273 274 /* Check for negative timeval */ 275 if (SCARG(uap, tv)) { 276 error = copyin((caddr_t)SCARG(uap, tv), (caddr_t)&atv, 277 sizeof(atv)); 278 if (error) 279 goto done; 280 #ifdef DEBUG 281 /* Ultrix clients sometimes give negative timeouts? */ 282 if (atv.tv_sec < 0 || atv.tv_usec < 0) 283 printf("ultrix select( %ld, %ld): negative timeout\n", 284 atv.tv_sec, atv.tv_usec); 285 #endif 286 287 } 288 error = sys_select(l, (void*) uap, retval); 289 if (error == EINVAL) 290 printf("ultrix select: bad args?\n"); 291 292 done: 293 return error; 294 } 295 296 #if defined(NFS) 297 int 298 async_daemon(struct lwp *l, void *v, register_t *retval) 299 { 300 struct sys_nfssvc_args ouap; 301 302 SCARG(&ouap, flag) = NFSSVC_BIOD; 303 SCARG(&ouap, argp) = NULL; 304 305 return (sys_nfssvc(l, &ouap, retval)); 306 } 307 #endif /* NFS */ 308 309 310 #define SUN__MAP_NEW 0x80000000 /* if not, old mmap & cannot handle */ 311 312 int 313 ultrix_sys_mmap(struct lwp *l, void *v, register_t *retval) 314 { 315 struct ultrix_sys_mmap_args *uap = v; 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, void *v, register_t *retval) 339 { 340 struct ultrix_sys_setsockopt_args *uap = v; 341 struct proc *p = l->l_proc; 342 struct file *fp; 343 struct mbuf *m = NULL; 344 int error; 345 346 /* getsock() will use the descriptor for us */ 347 if ((error = getsock(p->p_fd, SCARG(uap, s), &fp)) != 0) 348 return (error); 349 #define SO_DONTLINGER (~SO_LINGER) 350 if (SCARG(uap, name) == SO_DONTLINGER) { 351 m = m_get(M_WAIT, MT_SOOPTS); 352 mtod(m, struct linger *)->l_onoff = 0; 353 m->m_len = sizeof(struct linger); 354 error = sosetopt((struct socket *)fp->f_data, SCARG(uap, level), 355 SO_LINGER, m); 356 } 357 if (SCARG(uap, level) == IPPROTO_IP) { 358 #define EMUL_IP_MULTICAST_IF 2 359 #define EMUL_IP_MULTICAST_TTL 3 360 #define EMUL_IP_MULTICAST_LOOP 4 361 #define EMUL_IP_ADD_MEMBERSHIP 5 362 #define EMUL_IP_DROP_MEMBERSHIP 6 363 static const int ipoptxlat[] = { 364 IP_MULTICAST_IF, 365 IP_MULTICAST_TTL, 366 IP_MULTICAST_LOOP, 367 IP_ADD_MEMBERSHIP, 368 IP_DROP_MEMBERSHIP 369 }; 370 if (SCARG(uap, name) >= EMUL_IP_MULTICAST_IF && 371 SCARG(uap, name) <= EMUL_IP_DROP_MEMBERSHIP) { 372 SCARG(uap, name) = 373 ipoptxlat[SCARG(uap, name) - EMUL_IP_MULTICAST_IF]; 374 } 375 } 376 if (SCARG(uap, valsize) > MLEN) { 377 error = EINVAL; 378 goto out; 379 } 380 if (SCARG(uap, val)) { 381 m = m_get(M_WAIT, MT_SOOPTS); 382 error = copyin(SCARG(uap, val), mtod(m, caddr_t), 383 (u_int)SCARG(uap, valsize)); 384 if (error) { 385 (void) m_free(m); 386 goto out; 387 } 388 m->m_len = SCARG(uap, valsize); 389 } 390 error = sosetopt((struct socket *)fp->f_data, SCARG(uap, level), 391 SCARG(uap, name), m); 392 out: 393 FILE_UNUSE(fp, p); 394 return (error); 395 } 396 397 #define ULTRIX__SYS_NMLN 32 398 399 struct ultrix_utsname { 400 char sysname[ULTRIX__SYS_NMLN]; 401 char nodename[ULTRIX__SYS_NMLN]; 402 char release[ULTRIX__SYS_NMLN]; 403 char version[ULTRIX__SYS_NMLN]; 404 char machine[ULTRIX__SYS_NMLN]; 405 }; 406 407 int 408 ultrix_sys_uname(struct lwp *l, void *v, register_t *retval) 409 { 410 struct ultrix_sys_uname_args *uap = v; 411 struct ultrix_utsname sut; 412 const char *cp; 413 char *dp, *ep; 414 415 memset(&sut, 0, sizeof(sut)); 416 417 strncpy(sut.sysname, ostype, sizeof(sut.sysname) - 1); 418 strncpy(sut.nodename, hostname, sizeof(sut.nodename) - 1); 419 strncpy(sut.release, osrelease, sizeof(sut.release) - 1); 420 dp = sut.version; 421 ep = &sut.version[sizeof(sut.version) - 1]; 422 for (cp = version; *cp && *cp != '('; cp++) 423 ; 424 for (cp++; *cp && *cp != ')' && dp < ep; cp++) 425 *dp++ = *cp; 426 for (; *cp && *cp != '#'; cp++) 427 ; 428 for (; *cp && *cp != ':' && dp < ep; cp++) 429 *dp++ = *cp; 430 *dp = '\0'; 431 strncpy(sut.machine, machine, sizeof(sut.machine) - 1); 432 433 return copyout((caddr_t)&sut, (caddr_t)SCARG(uap, name), 434 sizeof(struct ultrix_utsname)); 435 } 436 437 int 438 ultrix_sys_setpgrp(struct lwp *l, void *v, register_t *retval) 439 { 440 struct ultrix_sys_setpgrp_args *uap = v; 441 struct proc *p = l->l_proc; 442 443 /* 444 * difference to our setpgid call is to include backwards 445 * compatibility to pre-setsid() binaries. Do setsid() 446 * instead of setpgid() in those cases where the process 447 * tries to create a new session the old way. 448 */ 449 if (!SCARG(uap, pgid) && 450 (!SCARG(uap, pid) || SCARG(uap, pid) == p->p_pid)) 451 return sys_setsid(l, uap, retval); 452 else 453 return sys_setpgid(l, uap, retval); 454 } 455 456 #if defined (NFSSERVER) 457 int 458 ultrix_sys_nfssvc(struct lwp *l, void *v, register_t *retval) 459 { 460 461 #if 0 /* XXX */ 462 struct ultrix_sys_nfssvc_args *uap = v; 463 struct emul *e = p->p_emul; 464 struct sys_nfssvc_args outuap; 465 struct sockaddr sa; 466 int error; 467 caddr_t sg = stackgap_init(p, 0); 468 469 memset(&outuap, 0, sizeof outuap); 470 SCARG(&outuap, fd) = SCARG(uap, fd); 471 SCARG(&outuap, mskval) = stackgap_alloc(p, &sg, sizeof sa); 472 SCARG(&outuap, msklen) = sizeof sa; 473 SCARG(&outuap, mtchval) = stackgap_alloc(p, &sg, sizeof sa); 474 SCARG(&outuap, mtchlen) = sizeof sa; 475 476 memset(&sa, 0, sizeof sa); 477 if (error = copyout(&sa, SCARG(&outuap, mskval), SCARG(&outuap, msklen))) 478 return (error); 479 if (error = copyout(&sa, SCARG(&outuap, mtchval), SCARG(&outuap, mtchlen))) 480 return (error); 481 482 return nfssvc(l, &outuap, retval); 483 #else 484 return (ENOSYS); 485 #endif 486 } 487 #endif /* NFSSERVER */ 488 489 struct ultrix_ustat { 490 daddr_t f_tfree; /* total free */ 491 ino_t f_tinode; /* total inodes free */ 492 char f_fname[6]; /* filsys name */ 493 char f_fpack[6]; /* filsys pack name */ 494 }; 495 496 int 497 ultrix_sys_ustat(struct lwp *l, void *v, register_t *retval) 498 { 499 struct ultrix_sys_ustat_args *uap = v; 500 struct ultrix_ustat us; 501 int error; 502 503 memset(&us, 0, sizeof us); 504 505 /* 506 * XXX: should set f_tfree and f_tinode at least 507 * How do we translate dev -> fstat? (and then to ultrix_ustat) 508 */ 509 510 if ((error = copyout(&us, SCARG(uap, buf), sizeof us)) != 0) 511 return (error); 512 return 0; 513 } 514 515 int 516 ultrix_sys_quotactl(struct lwp *l, void *v, register_t *retval) 517 { 518 519 #ifdef notyet 520 struct ultrix_sys_quotactl_args *uap = v; 521 #endif 522 523 return EINVAL; 524 } 525 526 int 527 ultrix_sys_vhangup(struct lwp *l, void *v, register_t *retval) 528 { 529 530 return 0; 531 } 532 533 534 /* 535 * RISC Ultrix cache control syscalls 536 */ 537 #ifdef __mips 538 int 539 ultrix_sys_cacheflush(struct lwp *l, void *v, register_t *retval) 540 { 541 struct ultrix_sys_cacheflush_args /* { 542 syscallarg(void *) addr; 543 syscallarg(unsigned) nbytes; 544 syscallarg(int) flag; 545 } */ *uap = v; 546 struct proc *p = l->l_proc; 547 vaddr_t va = (vaddr_t)SCARG(uap, addr); 548 int nbytes = SCARG(uap, nbytes); 549 int whichcache = SCARG(uap, whichcache); 550 551 return (mips_user_cacheflush(p, va, nbytes, whichcache)); 552 } 553 554 555 int 556 ultrix_sys_cachectl(struct lwp *l, void *v, register_t *retval) 557 { 558 struct ultrix_sys_cachectl_args /* { 559 syscallarg(void *) addr; 560 syscallarg(int) nbytes; 561 syscallarg(int) cacheop; 562 } */ *uap = v; 563 struct proc *p = l->l_proc; 564 vaddr_t va = (vaddr_t)SCARG(uap, addr); 565 int nbytes = SCARG(uap, nbytes); 566 int cacheop = SCARG(uap, cacheop); 567 568 return mips_user_cachectl(p, va, nbytes, cacheop); 569 } 570 571 #endif /* __mips */ 572 573 574 int 575 ultrix_sys_exportfs(struct lwp *l, void *v, register_t *retval) 576 { 577 #ifdef notyet 578 struct ultrix_sys_exportfs_args *uap = v; 579 #endif 580 581 /* 582 * XXX: should perhaps translate into a mount(2) 583 * with MOUNT_EXPORT? 584 */ 585 return 0; 586 } 587 588 int 589 ultrix_sys_sigpending(struct lwp *l, void *v, register_t *retval) 590 { 591 struct ultrix_sys_sigpending_args *uap = v; 592 sigset_t ss; 593 int mask; 594 595 sigpending1(l->l_proc, &ss); 596 mask = ss.__bits[0]; 597 598 return (copyout((caddr_t)&mask, (caddr_t)SCARG(uap, mask), sizeof(int))); 599 } 600 601 int 602 ultrix_sys_sigreturn(struct lwp *l, void *v, register_t *retval) 603 { 604 struct ultrix_sys_sigreturn_args *uap = v; 605 606 /* struct sigcontext13 is close enough to Ultrix */ 607 608 return (compat_13_sys_sigreturn(l, uap, retval)); 609 } 610 611 int 612 ultrix_sys_sigcleanup(struct lwp *l, void *v, register_t *retval) 613 { 614 struct ultrix_sys_sigcleanup_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_sigsuspend(struct lwp *l, void *v, register_t *retval) 623 { 624 struct ultrix_sys_sigsuspend_args *uap = v; 625 int mask = SCARG(uap, mask); 626 sigset_t ss; 627 628 ss.__bits[0] = mask; 629 ss.__bits[1] = 0; 630 ss.__bits[2] = 0; 631 ss.__bits[3] = 0; 632 633 return (sigsuspend1(l->l_proc, &ss)); 634 } 635 636 #define ULTRIX_SV_ONSTACK 0x0001 /* take signal on signal stack */ 637 #define ULTRIX_SV_INTERRUPT 0x0002 /* do not restart system on signal return */ 638 #define ULTRIX_SV_OLDSIG 0x1000 /* Emulate old signal() for POSIX */ 639 640 int 641 ultrix_sys_sigvec(struct lwp *l, void *v, register_t *retval) 642 { 643 struct ultrix_sys_sigvec_args *uap = v; 644 struct sigvec nsv, osv; 645 struct sigaction nsa, osa; 646 int error; 647 648 if (SCARG(uap, nsv)) { 649 error = copyin(SCARG(uap, nsv), &nsv, sizeof(nsv)); 650 if (error) 651 return (error); 652 nsa.sa_handler = nsv.sv_handler; 653 #if 0 /* documentation */ 654 /* ONSTACK is identical */ 655 nsa.sa_flags = nsv.sv_flags & ULTRIX_SV_ONSTACK; 656 if ((nsv.sv_flags & ULTRIX_SV_OLDSIG) 657 /* old signal() - always restart */ 658 || (!(nsv.sv_flags & ULTRIX_SV_INTERRUPT)) 659 /* inverted meaning (same bit) */ 660 ) 661 nsa.sa_flags |= SA_RESTART; 662 #else /* optimized - assuming ULTRIX_SV_OLDSIG=>!ULTRIX_SV_INTERRUPT */ 663 nsa.sa_flags = nsv.sv_flags & ~ULTRIX_SV_OLDSIG; 664 nsa.sa_flags ^= SA_RESTART; 665 #endif 666 native_sigset13_to_sigset(&nsv.sv_mask, &nsa.sa_mask); 667 } 668 error = sigaction1(l->l_proc, SCARG(uap, signum), 669 SCARG(uap, nsv) ? &nsa : 0, SCARG(uap, osv) ? &osa : 0, 670 NULL, 0); 671 if (error) 672 return (error); 673 if (SCARG(uap, osv)) { 674 osv.sv_handler = osa.sa_handler; 675 osv.sv_flags = osa.sa_flags ^ SA_RESTART; 676 osv.sv_flags &= (ULTRIX_SV_ONSTACK | ULTRIX_SV_INTERRUPT); 677 native_sigset_to_sigset13(&osa.sa_mask, &osv.sv_mask); 678 error = copyout(&osv, SCARG(uap, osv), sizeof(osv)); 679 if (error) 680 return (error); 681 } 682 return (0); 683 } 684 685 int 686 ultrix_sys_shmsys(struct lwp *l, void *v, register_t *retval) 687 { 688 689 #ifdef SYSVSHM 690 /* Ultrix SVSHM weirndess: */ 691 struct ultrix_sys_shmsys_args *uap = v; 692 struct sys_shmat_args shmat_args; 693 struct compat_14_sys_shmctl_args shmctl_args; 694 struct sys_shmdt_args shmdt_args; 695 struct sys_shmget_args shmget_args; 696 697 698 switch (SCARG(uap, shmop)) { 699 case 0: /* Ultrix shmat() */ 700 SCARG(&shmat_args, shmid) = SCARG(uap, a2); 701 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a3); 702 SCARG(&shmat_args, shmflg) = SCARG(uap, a4); 703 return (sys_shmat(l, &shmat_args, retval)); 704 705 case 1: /* Ultrix shmctl() */ 706 SCARG(&shmctl_args, shmid) = SCARG(uap, a2); 707 SCARG(&shmctl_args, cmd) = SCARG(uap, a3); 708 SCARG(&shmctl_args, buf) = (struct shmid_ds14 *)SCARG(uap, a4); 709 return (compat_14_sys_shmctl(l, &shmctl_args, retval)); 710 711 case 2: /* Ultrix shmdt() */ 712 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a2); 713 return (sys_shmdt(l, &shmdt_args, retval)); 714 715 case 3: /* Ultrix shmget() */ 716 SCARG(&shmget_args, key) = SCARG(uap, a2); 717 SCARG(&shmget_args, size) = SCARG(uap, a3); 718 SCARG(&shmget_args, shmflg) = SCARG(uap, a4) 719 & (IPC_CREAT|IPC_EXCL|IPC_NOWAIT); 720 return (sys_shmget(l, &shmget_args, retval)); 721 722 default: 723 return (EINVAL); 724 } 725 #else 726 return (EOPNOTSUPP); 727 #endif /* SYSVSHM */ 728 } 729 730 static int 731 ultrix_to_bsd_flock(struct ultrix_flock *ufl, struct flock *fl) 732 { 733 734 fl->l_start = ufl->l_start; 735 fl->l_len = ufl->l_len; 736 fl->l_pid = ufl->l_pid; 737 fl->l_whence = ufl->l_whence; 738 739 switch (ufl->l_type) { 740 case ULTRIX_F_RDLCK: 741 fl->l_type = F_RDLCK; 742 break; 743 case ULTRIX_F_WRLCK: 744 fl->l_type = F_WRLCK; 745 break; 746 case ULTRIX_F_UNLCK: 747 fl->l_type = F_UNLCK; 748 break; 749 default: 750 return (EINVAL); 751 } 752 753 return (0); 754 } 755 756 static void 757 bsd_to_ultrix_flock(struct flock *fl, struct ultrix_flock *ufl) 758 { 759 760 ufl->l_start = fl->l_start; 761 ufl->l_len = fl->l_len; 762 ufl->l_pid = fl->l_pid; 763 ufl->l_whence = fl->l_whence; 764 765 switch (fl->l_type) { 766 case F_RDLCK: 767 ufl->l_type = ULTRIX_F_RDLCK; 768 break; 769 case F_WRLCK: 770 ufl->l_type = ULTRIX_F_WRLCK; 771 break; 772 case F_UNLCK: 773 ufl->l_type = ULTRIX_F_UNLCK; 774 break; 775 } 776 } 777 778 int 779 ultrix_sys_fcntl(struct lwp *l, void *v, register_t *retval) 780 { 781 struct ultrix_sys_fcntl_args *uap = v; 782 struct proc *p = l->l_proc; 783 int error; 784 struct ultrix_flock ufl; 785 struct flock fl, *flp = NULL; /* XXX gcc */ 786 caddr_t sg; 787 struct sys_fcntl_args *args, fca; 788 789 switch (SCARG(uap, cmd)) { 790 case F_GETLK: 791 case F_SETLK: 792 case F_SETLKW: 793 error = copyin(SCARG(uap, arg), &ufl, sizeof(ufl)); 794 if (error) 795 return (error); 796 error = ultrix_to_bsd_flock(&ufl, &fl); 797 if (error) 798 return (error); 799 sg = stackgap_init(p, 0); 800 flp = (struct flock *)stackgap_alloc(p, &sg, sizeof(*flp)); 801 error = copyout(&fl, flp, sizeof(*flp)); 802 if (error) 803 return (error); 804 805 SCARG(&fca, fd) = SCARG(uap, fd); 806 SCARG(&fca, cmd) = SCARG(uap, cmd); 807 SCARG(&fca, arg) = flp; 808 args = &fca; 809 break; 810 default: 811 args = v; 812 break; 813 } 814 815 error = sys_fcntl(l, args, retval); 816 if (error) 817 return (error); 818 819 switch (SCARG(uap, cmd)) { 820 case F_GETLK: 821 error = copyin(flp, &fl, sizeof(fl)); 822 if (error) 823 return (error); 824 bsd_to_ultrix_flock(&fl, &ufl); 825 error = copyout(&ufl, SCARG(uap, arg), sizeof(ufl)); 826 break; 827 } 828 829 return (error); 830 } 831
Indexes created Tue Sep 23 14:10:03 GMT 2025