ultrix_misc.c revision 1.97
1 /* $NetBSD: ultrix_misc.c,v 1.97 2005/01/25 14:56:09 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 1.97 2005/01/25 14:56:09 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 #ifdef __mips 174 sendsig_sigcontext, 175 #else /* vax */ 176 sendsig, 177 #endif 178 trapsignal, 179 NULL, 180 ultrix_sigcode, 181 ultrix_esigcode, 182 &emul_ultrix_object, 183 setregs, 184 NULL, 185 NULL, 186 NULL, 187 NULL, 188 NULL, 189 #ifdef __HAVE_SYSCALL_INTERN 190 syscall_intern, 191 #else 192 syscall, 193 #endif 194 NULL, 195 NULL, 196 }; 197 198 #define GSI_PROG_ENV 1 199 200 int 201 ultrix_sys_getsysinfo(struct lwp *l, void *v, register_t *retval) 202 { 203 struct ultrix_sys_getsysinfo_args *uap = v; 204 static short progenv = 0; 205 206 switch (SCARG(uap, op)) { 207 /* operations implemented: */ 208 case GSI_PROG_ENV: 209 if (SCARG(uap, nbytes) < sizeof(short)) 210 return EINVAL; 211 *retval = 1; 212 return (copyout(&progenv, SCARG(uap, buffer), sizeof(short))); 213 default: 214 *retval = 0; /* info unavail */ 215 return 0; 216 } 217 } 218 219 int 220 ultrix_sys_setsysinfo(struct lwp *l, void *v, register_t *retval) 221 { 222 223 #ifdef notyet 224 struct ultrix_sys_setsysinfo_args *uap = v; 225 #endif 226 227 *retval = 0; 228 return 0; 229 } 230 231 int 232 ultrix_sys_waitpid(struct lwp *l, void *v, register_t *retval) 233 { 234 struct ultrix_sys_waitpid_args *uap = v; 235 struct sys_wait4_args ua; 236 237 SCARG(&ua, pid) = SCARG(uap, pid); 238 SCARG(&ua, status) = SCARG(uap, status); 239 SCARG(&ua, options) = SCARG(uap, options); 240 SCARG(&ua, rusage) = 0; 241 242 return (sys_wait4(l, &ua, retval)); 243 } 244 245 int 246 ultrix_sys_wait3(struct lwp *l, void *v, register_t *retval) 247 { 248 struct ultrix_sys_wait3_args *uap = v; 249 struct sys_wait4_args ua; 250 251 SCARG(&ua, pid) = -1; 252 SCARG(&ua, status) = SCARG(uap, status); 253 SCARG(&ua, options) = SCARG(uap, options); 254 SCARG(&ua, rusage) = SCARG(uap, rusage); 255 256 return (sys_wait4(l, &ua, retval)); 257 } 258 259 /* 260 * Ultrix binaries pass in FD_MAX as the first arg to select(). 261 * On Ultrix, FD_MAX is 4096, which is more than the NetBSD sys_select() 262 * can handle. 263 * Since we can't have more than the (native) FD_MAX descriptors open, 264 * limit nfds to at most FD_MAX. 265 */ 266 int 267 ultrix_sys_select(struct lwp *l, void *v, register_t *retval) 268 { 269 struct sys_select_args *uap = v; 270 struct timeval atv; 271 int error; 272 273 /* Limit number of FDs selected on to the native maximum */ 274 275 if (SCARG(uap, nd) > FD_SETSIZE) 276 SCARG(uap, nd) = FD_SETSIZE; 277 278 /* Check for negative timeval */ 279 if (SCARG(uap, tv)) { 280 error = copyin((caddr_t)SCARG(uap, tv), (caddr_t)&atv, 281 sizeof(atv)); 282 if (error) 283 goto done; 284 #ifdef DEBUG 285 /* Ultrix clients sometimes give negative timeouts? */ 286 if (atv.tv_sec < 0 || atv.tv_usec < 0) 287 printf("ultrix select( %ld, %ld): negative timeout\n", 288 atv.tv_sec, atv.tv_usec); 289 #endif 290 291 } 292 error = sys_select(l, (void*) uap, retval); 293 if (error == EINVAL) 294 printf("ultrix select: bad args?\n"); 295 296 done: 297 return error; 298 } 299 300 #if defined(NFS) 301 int 302 async_daemon(struct lwp *l, void *v, register_t *retval) 303 { 304 struct sys_nfssvc_args ouap; 305 306 SCARG(&ouap, flag) = NFSSVC_BIOD; 307 SCARG(&ouap, argp) = NULL; 308 309 return (sys_nfssvc(l, &ouap, retval)); 310 } 311 #endif /* NFS */ 312 313 314 #define SUN__MAP_NEW 0x80000000 /* if not, old mmap & cannot handle */ 315 316 int 317 ultrix_sys_mmap(struct lwp *l, void *v, register_t *retval) 318 { 319 struct ultrix_sys_mmap_args *uap = v; 320 struct sys_mmap_args ouap; 321 322 /* 323 * Verify the arguments. 324 */ 325 if (SCARG(uap, prot) & ~(PROT_READ|PROT_WRITE|PROT_EXEC)) 326 return (EINVAL); /* XXX still needed? */ 327 328 if ((SCARG(uap, flags) & SUN__MAP_NEW) == 0) 329 return (EINVAL); 330 331 SCARG(&ouap, flags) = SCARG(uap, flags) & ~SUN__MAP_NEW; 332 SCARG(&ouap, addr) = SCARG(uap, addr); 333 SCARG(&ouap, len) = SCARG(uap, len); 334 SCARG(&ouap, prot) = SCARG(uap, prot); 335 SCARG(&ouap, fd) = SCARG(uap, fd); 336 SCARG(&ouap, pos) = SCARG(uap, pos); 337 338 return (sys_mmap(l, &ouap, retval)); 339 } 340 341 int 342 ultrix_sys_setsockopt(struct lwp *l, void *v, register_t *retval) 343 { 344 struct ultrix_sys_setsockopt_args *uap = v; 345 struct proc *p = l->l_proc; 346 struct file *fp; 347 struct mbuf *m = NULL; 348 int error; 349 350 /* getsock() will use the descriptor for us */ 351 if ((error = getsock(p->p_fd, SCARG(uap, s), &fp)) != 0) 352 return (error); 353 #define SO_DONTLINGER (~SO_LINGER) 354 if (SCARG(uap, name) == SO_DONTLINGER) { 355 m = m_get(M_WAIT, MT_SOOPTS); 356 mtod(m, struct linger *)->l_onoff = 0; 357 m->m_len = sizeof(struct linger); 358 error = sosetopt((struct socket *)fp->f_data, SCARG(uap, level), 359 SO_LINGER, m); 360 } 361 if (SCARG(uap, level) == IPPROTO_IP) { 362 #define EMUL_IP_MULTICAST_IF 2 363 #define EMUL_IP_MULTICAST_TTL 3 364 #define EMUL_IP_MULTICAST_LOOP 4 365 #define EMUL_IP_ADD_MEMBERSHIP 5 366 #define EMUL_IP_DROP_MEMBERSHIP 6 367 static const int ipoptxlat[] = { 368 IP_MULTICAST_IF, 369 IP_MULTICAST_TTL, 370 IP_MULTICAST_LOOP, 371 IP_ADD_MEMBERSHIP, 372 IP_DROP_MEMBERSHIP 373 }; 374 if (SCARG(uap, name) >= EMUL_IP_MULTICAST_IF && 375 SCARG(uap, name) <= EMUL_IP_DROP_MEMBERSHIP) { 376 SCARG(uap, name) = 377 ipoptxlat[SCARG(uap, name) - EMUL_IP_MULTICAST_IF]; 378 } 379 } 380 if (SCARG(uap, valsize) > MLEN) { 381 error = EINVAL; 382 goto out; 383 } 384 if (SCARG(uap, val)) { 385 m = m_get(M_WAIT, MT_SOOPTS); 386 error = copyin(SCARG(uap, val), mtod(m, caddr_t), 387 (u_int)SCARG(uap, valsize)); 388 if (error) { 389 (void) m_free(m); 390 goto out; 391 } 392 m->m_len = SCARG(uap, valsize); 393 } 394 error = sosetopt((struct socket *)fp->f_data, SCARG(uap, level), 395 SCARG(uap, name), m); 396 out: 397 FILE_UNUSE(fp, p); 398 return (error); 399 } 400 401 #define ULTRIX__SYS_NMLN 32 402 403 struct ultrix_utsname { 404 char sysname[ULTRIX__SYS_NMLN]; 405 char nodename[ULTRIX__SYS_NMLN]; 406 char release[ULTRIX__SYS_NMLN]; 407 char version[ULTRIX__SYS_NMLN]; 408 char machine[ULTRIX__SYS_NMLN]; 409 }; 410 411 int 412 ultrix_sys_uname(struct lwp *l, void *v, register_t *retval) 413 { 414 struct ultrix_sys_uname_args *uap = v; 415 struct ultrix_utsname sut; 416 const char *cp; 417 char *dp, *ep; 418 419 memset(&sut, 0, sizeof(sut)); 420 421 strncpy(sut.sysname, ostype, sizeof(sut.sysname) - 1); 422 strncpy(sut.nodename, hostname, sizeof(sut.nodename) - 1); 423 strncpy(sut.release, osrelease, sizeof(sut.release) - 1); 424 dp = sut.version; 425 ep = &sut.version[sizeof(sut.version) - 1]; 426 for (cp = version; *cp && *cp != '('; cp++) 427 ; 428 for (cp++; *cp && *cp != ')' && dp < ep; cp++) 429 *dp++ = *cp; 430 for (; *cp && *cp != '#'; cp++) 431 ; 432 for (; *cp && *cp != ':' && dp < ep; cp++) 433 *dp++ = *cp; 434 *dp = '\0'; 435 strncpy(sut.machine, machine, sizeof(sut.machine) - 1); 436 437 return copyout((caddr_t)&sut, (caddr_t)SCARG(uap, name), 438 sizeof(struct ultrix_utsname)); 439 } 440 441 int 442 ultrix_sys_setpgrp(struct lwp *l, void *v, register_t *retval) 443 { 444 struct ultrix_sys_setpgrp_args *uap = v; 445 struct proc *p = l->l_proc; 446 447 /* 448 * difference to our setpgid call is to include backwards 449 * compatibility to pre-setsid() binaries. Do setsid() 450 * instead of setpgid() in those cases where the process 451 * tries to create a new session the old way. 452 */ 453 if (!SCARG(uap, pgid) && 454 (!SCARG(uap, pid) || SCARG(uap, pid) == p->p_pid)) 455 return sys_setsid(l, uap, retval); 456 else 457 return sys_setpgid(l, uap, retval); 458 } 459 460 #if defined (NFSSERVER) 461 int 462 ultrix_sys_nfssvc(struct lwp *l, void *v, register_t *retval) 463 { 464 465 #if 0 /* XXX */ 466 struct ultrix_sys_nfssvc_args *uap = v; 467 struct emul *e = p->p_emul; 468 struct sys_nfssvc_args outuap; 469 struct sockaddr sa; 470 int error; 471 caddr_t sg = stackgap_init(p, 0); 472 473 memset(&outuap, 0, sizeof outuap); 474 SCARG(&outuap, fd) = SCARG(uap, fd); 475 SCARG(&outuap, mskval) = stackgap_alloc(p, &sg, sizeof sa); 476 SCARG(&outuap, msklen) = sizeof sa; 477 SCARG(&outuap, mtchval) = stackgap_alloc(p, &sg, sizeof sa); 478 SCARG(&outuap, mtchlen) = sizeof sa; 479 480 memset(&sa, 0, sizeof sa); 481 if (error = copyout(&sa, SCARG(&outuap, mskval), SCARG(&outuap, msklen))) 482 return (error); 483 if (error = copyout(&sa, SCARG(&outuap, mtchval), SCARG(&outuap, mtchlen))) 484 return (error); 485 486 return nfssvc(l, &outuap, retval); 487 #else 488 return (ENOSYS); 489 #endif 490 } 491 #endif /* NFSSERVER */ 492 493 struct ultrix_ustat { 494 daddr_t f_tfree; /* total free */ 495 ino_t f_tinode; /* total inodes free */ 496 char f_fname[6]; /* filsys name */ 497 char f_fpack[6]; /* filsys pack name */ 498 }; 499 500 int 501 ultrix_sys_ustat(struct lwp *l, void *v, register_t *retval) 502 { 503 struct ultrix_sys_ustat_args *uap = v; 504 struct ultrix_ustat us; 505 int error; 506 507 memset(&us, 0, sizeof us); 508 509 /* 510 * XXX: should set f_tfree and f_tinode at least 511 * How do we translate dev -> fstat? (and then to ultrix_ustat) 512 */ 513 514 if ((error = copyout(&us, SCARG(uap, buf), sizeof us)) != 0) 515 return (error); 516 return 0; 517 } 518 519 int 520 ultrix_sys_quotactl(struct lwp *l, void *v, register_t *retval) 521 { 522 523 #ifdef notyet 524 struct ultrix_sys_quotactl_args *uap = v; 525 #endif 526 527 return EINVAL; 528 } 529 530 int 531 ultrix_sys_vhangup(struct lwp *l, void *v, register_t *retval) 532 { 533 534 return 0; 535 } 536 537 538 /* 539 * RISC Ultrix cache control syscalls 540 */ 541 #ifdef __mips 542 int 543 ultrix_sys_cacheflush(struct lwp *l, void *v, register_t *retval) 544 { 545 struct ultrix_sys_cacheflush_args /* { 546 syscallarg(void *) addr; 547 syscallarg(unsigned) nbytes; 548 syscallarg(int) flag; 549 } */ *uap = v; 550 struct proc *p = l->l_proc; 551 vaddr_t va = (vaddr_t)SCARG(uap, addr); 552 int nbytes = SCARG(uap, nbytes); 553 int whichcache = SCARG(uap, whichcache); 554 555 return (mips_user_cacheflush(p, va, nbytes, whichcache)); 556 } 557 558 559 int 560 ultrix_sys_cachectl(struct lwp *l, void *v, register_t *retval) 561 { 562 struct ultrix_sys_cachectl_args /* { 563 syscallarg(void *) addr; 564 syscallarg(int) nbytes; 565 syscallarg(int) cacheop; 566 } */ *uap = v; 567 struct proc *p = l->l_proc; 568 vaddr_t va = (vaddr_t)SCARG(uap, addr); 569 int nbytes = SCARG(uap, nbytes); 570 int cacheop = SCARG(uap, cacheop); 571 572 return mips_user_cachectl(p, va, nbytes, cacheop); 573 } 574 575 #endif /* __mips */ 576 577 578 int 579 ultrix_sys_exportfs(struct lwp *l, void *v, register_t *retval) 580 { 581 #ifdef notyet 582 struct ultrix_sys_exportfs_args *uap = v; 583 #endif 584 585 /* 586 * XXX: should perhaps translate into a mount(2) 587 * with MOUNT_EXPORT? 588 */ 589 return 0; 590 } 591 592 int 593 ultrix_sys_sigpending(struct lwp *l, void *v, register_t *retval) 594 { 595 struct ultrix_sys_sigpending_args *uap = v; 596 sigset_t ss; 597 int mask; 598 599 sigpending1(l->l_proc, &ss); 600 mask = ss.__bits[0]; 601 602 return (copyout((caddr_t)&mask, (caddr_t)SCARG(uap, mask), sizeof(int))); 603 } 604 605 int 606 ultrix_sys_sigreturn(struct lwp *l, void *v, register_t *retval) 607 { 608 struct ultrix_sys_sigreturn_args *uap = v; 609 610 /* struct sigcontext13 is close enough to Ultrix */ 611 612 return (compat_13_sys_sigreturn(l, uap, retval)); 613 } 614 615 int 616 ultrix_sys_sigcleanup(struct lwp *l, void *v, register_t *retval) 617 { 618 struct ultrix_sys_sigcleanup_args *uap = v; 619 620 /* struct sigcontext13 is close enough to Ultrix */ 621 622 return (compat_13_sys_sigreturn(l, uap, retval)); 623 } 624 625 int 626 ultrix_sys_sigsuspend(struct lwp *l, void *v, register_t *retval) 627 { 628 struct ultrix_sys_sigsuspend_args *uap = v; 629 int mask = SCARG(uap, mask); 630 sigset_t ss; 631 632 ss.__bits[0] = mask; 633 ss.__bits[1] = 0; 634 ss.__bits[2] = 0; 635 ss.__bits[3] = 0; 636 637 return (sigsuspend1(l->l_proc, &ss)); 638 } 639 640 #define ULTRIX_SV_ONSTACK 0x0001 /* take signal on signal stack */ 641 #define ULTRIX_SV_INTERRUPT 0x0002 /* do not restart system on signal return */ 642 #define ULTRIX_SV_OLDSIG 0x1000 /* Emulate old signal() for POSIX */ 643 644 int 645 ultrix_sys_sigvec(struct lwp *l, void *v, register_t *retval) 646 { 647 struct ultrix_sys_sigvec_args *uap = v; 648 struct sigvec nsv, osv; 649 struct sigaction nsa, osa; 650 int error; 651 652 if (SCARG(uap, nsv)) { 653 error = copyin(SCARG(uap, nsv), &nsv, sizeof(nsv)); 654 if (error) 655 return (error); 656 nsa.sa_handler = nsv.sv_handler; 657 #if 0 /* documentation */ 658 /* ONSTACK is identical */ 659 nsa.sa_flags = nsv.sv_flags & ULTRIX_SV_ONSTACK; 660 if ((nsv.sv_flags & ULTRIX_SV_OLDSIG) 661 /* old signal() - always restart */ 662 || (!(nsv.sv_flags & ULTRIX_SV_INTERRUPT)) 663 /* inverted meaning (same bit) */ 664 ) 665 nsa.sa_flags |= SA_RESTART; 666 #else /* optimized - assuming ULTRIX_SV_OLDSIG=>!ULTRIX_SV_INTERRUPT */ 667 nsa.sa_flags = nsv.sv_flags & ~ULTRIX_SV_OLDSIG; 668 nsa.sa_flags ^= SA_RESTART; 669 #endif 670 native_sigset13_to_sigset(&nsv.sv_mask, &nsa.sa_mask); 671 } 672 error = sigaction1(l->l_proc, SCARG(uap, signum), 673 SCARG(uap, nsv) ? &nsa : 0, SCARG(uap, osv) ? &osa : 0, 674 NULL, 0); 675 if (error) 676 return (error); 677 if (SCARG(uap, osv)) { 678 osv.sv_handler = osa.sa_handler; 679 osv.sv_flags = osa.sa_flags ^ SA_RESTART; 680 osv.sv_flags &= (ULTRIX_SV_ONSTACK | ULTRIX_SV_INTERRUPT); 681 native_sigset_to_sigset13(&osa.sa_mask, &osv.sv_mask); 682 error = copyout(&osv, SCARG(uap, osv), sizeof(osv)); 683 if (error) 684 return (error); 685 } 686 return (0); 687 } 688 689 int 690 ultrix_sys_shmsys(struct lwp *l, void *v, register_t *retval) 691 { 692 693 #ifdef SYSVSHM 694 /* Ultrix SVSHM weirndess: */ 695 struct ultrix_sys_shmsys_args *uap = v; 696 struct sys_shmat_args shmat_args; 697 struct compat_14_sys_shmctl_args shmctl_args; 698 struct sys_shmdt_args shmdt_args; 699 struct sys_shmget_args shmget_args; 700 701 702 switch (SCARG(uap, shmop)) { 703 case 0: /* Ultrix shmat() */ 704 SCARG(&shmat_args, shmid) = SCARG(uap, a2); 705 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a3); 706 SCARG(&shmat_args, shmflg) = SCARG(uap, a4); 707 return (sys_shmat(l, &shmat_args, retval)); 708 709 case 1: /* Ultrix shmctl() */ 710 SCARG(&shmctl_args, shmid) = SCARG(uap, a2); 711 SCARG(&shmctl_args, cmd) = SCARG(uap, a3); 712 SCARG(&shmctl_args, buf) = (struct shmid_ds14 *)SCARG(uap, a4); 713 return (compat_14_sys_shmctl(l, &shmctl_args, retval)); 714 715 case 2: /* Ultrix shmdt() */ 716 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a2); 717 return (sys_shmdt(l, &shmdt_args, retval)); 718 719 case 3: /* Ultrix shmget() */ 720 SCARG(&shmget_args, key) = SCARG(uap, a2); 721 SCARG(&shmget_args, size) = SCARG(uap, a3); 722 SCARG(&shmget_args, shmflg) = SCARG(uap, a4) 723 & (IPC_CREAT|IPC_EXCL|IPC_NOWAIT); 724 return (sys_shmget(l, &shmget_args, retval)); 725 726 default: 727 return (EINVAL); 728 } 729 #else 730 return (EOPNOTSUPP); 731 #endif /* SYSVSHM */ 732 } 733 734 static int 735 ultrix_to_bsd_flock(struct ultrix_flock *ufl, struct flock *fl) 736 { 737 738 fl->l_start = ufl->l_start; 739 fl->l_len = ufl->l_len; 740 fl->l_pid = ufl->l_pid; 741 fl->l_whence = ufl->l_whence; 742 743 switch (ufl->l_type) { 744 case ULTRIX_F_RDLCK: 745 fl->l_type = F_RDLCK; 746 break; 747 case ULTRIX_F_WRLCK: 748 fl->l_type = F_WRLCK; 749 break; 750 case ULTRIX_F_UNLCK: 751 fl->l_type = F_UNLCK; 752 break; 753 default: 754 return (EINVAL); 755 } 756 757 return (0); 758 } 759 760 static void 761 bsd_to_ultrix_flock(struct flock *fl, struct ultrix_flock *ufl) 762 { 763 764 ufl->l_start = fl->l_start; 765 ufl->l_len = fl->l_len; 766 ufl->l_pid = fl->l_pid; 767 ufl->l_whence = fl->l_whence; 768 769 switch (fl->l_type) { 770 case F_RDLCK: 771 ufl->l_type = ULTRIX_F_RDLCK; 772 break; 773 case F_WRLCK: 774 ufl->l_type = ULTRIX_F_WRLCK; 775 break; 776 case F_UNLCK: 777 ufl->l_type = ULTRIX_F_UNLCK; 778 break; 779 } 780 } 781 782 int 783 ultrix_sys_fcntl(struct lwp *l, void *v, register_t *retval) 784 { 785 struct ultrix_sys_fcntl_args *uap = v; 786 struct proc *p = l->l_proc; 787 int error; 788 struct ultrix_flock ufl; 789 struct flock fl, *flp = NULL; /* XXX gcc */ 790 caddr_t sg; 791 struct sys_fcntl_args *args, fca; 792 793 switch (SCARG(uap, cmd)) { 794 case F_GETLK: 795 case F_SETLK: 796 case F_SETLKW: 797 error = copyin(SCARG(uap, arg), &ufl, sizeof(ufl)); 798 if (error) 799 return (error); 800 error = ultrix_to_bsd_flock(&ufl, &fl); 801 if (error) 802 return (error); 803 sg = stackgap_init(p, 0); 804 flp = (struct flock *)stackgap_alloc(p, &sg, sizeof(*flp)); 805 error = copyout(&fl, flp, sizeof(*flp)); 806 if (error) 807 return (error); 808 809 SCARG(&fca, fd) = SCARG(uap, fd); 810 SCARG(&fca, cmd) = SCARG(uap, cmd); 811 SCARG(&fca, arg) = flp; 812 args = &fca; 813 break; 814 default: 815 args = v; 816 break; 817 } 818 819 error = sys_fcntl(l, args, retval); 820 if (error) 821 return (error); 822 823 switch (SCARG(uap, cmd)) { 824 case F_GETLK: 825 error = copyin(flp, &fl, sizeof(fl)); 826 if (error) 827 return (error); 828 bsd_to_ultrix_flock(&fl, &ufl); 829 error = copyout(&ufl, SCARG(uap, arg), sizeof(ufl)); 830 break; 831 } 832 833 return (error); 834 } 835
Indexes created Tue Sep 23 14:10:03 GMT 2025