ultrix_misc.c revision 1.99
1 /* $NetBSD: ultrix_misc.c,v 1.99 2005/03/26 05:12:36 fvdl 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 2005/03/26 05:12:36 fvdl 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 #ifdef __HAVE_SYSCALL_INTERN 157 void syscall_intern(struct proc *); 158 #else 159 void syscall(void); 160 #endif 161 162 struct uvm_object *emul_ultrix_object; 163 164 const struct emul emul_ultrix = { 165 "ultrix", 166 "/emul/ultrix", 167 #ifndef __HAVE_MINIMAL_EMUL 168 0, 169 NULL, 170 ULTRIX_SYS_syscall, 171 ULTRIX_SYS_NSYSENT, 172 #endif 173 ultrix_sysent, 174 ultrix_syscallnames, 175 #ifdef __mips 176 sendsig_sigcontext, 177 #else /* vax */ 178 sendsig, 179 #endif 180 trapsignal, 181 NULL, 182 ultrix_sigcode, 183 ultrix_esigcode, 184 &emul_ultrix_object, 185 setregs, 186 NULL, 187 NULL, 188 NULL, 189 NULL, 190 NULL, 191 #ifdef __HAVE_SYSCALL_INTERN 192 syscall_intern, 193 #else 194 syscall, 195 #endif 196 NULL, 197 NULL, 198 199 uvm_default_mapaddr, 200 }; 201 202 #define GSI_PROG_ENV 1 203 204 int 205 ultrix_sys_getsysinfo(struct lwp *l, void *v, register_t *retval) 206 { 207 struct ultrix_sys_getsysinfo_args *uap = v; 208 static short progenv = 0; 209 210 switch (SCARG(uap, op)) { 211 /* operations implemented: */ 212 case GSI_PROG_ENV: 213 if (SCARG(uap, nbytes) < sizeof(short)) 214 return EINVAL; 215 *retval = 1; 216 return (copyout(&progenv, SCARG(uap, buffer), sizeof(short))); 217 default: 218 *retval = 0; /* info unavail */ 219 return 0; 220 } 221 } 222 223 int 224 ultrix_sys_setsysinfo(struct lwp *l, void *v, register_t *retval) 225 { 226 227 #ifdef notyet 228 struct ultrix_sys_setsysinfo_args *uap = v; 229 #endif 230 231 *retval = 0; 232 return 0; 233 } 234 235 int 236 ultrix_sys_waitpid(struct lwp *l, void *v, register_t *retval) 237 { 238 struct ultrix_sys_waitpid_args *uap = v; 239 struct sys_wait4_args ua; 240 241 SCARG(&ua, pid) = SCARG(uap, pid); 242 SCARG(&ua, status) = SCARG(uap, status); 243 SCARG(&ua, options) = SCARG(uap, options); 244 SCARG(&ua, rusage) = 0; 245 246 return (sys_wait4(l, &ua, retval)); 247 } 248 249 int 250 ultrix_sys_wait3(struct lwp *l, void *v, register_t *retval) 251 { 252 struct ultrix_sys_wait3_args *uap = v; 253 struct sys_wait4_args ua; 254 255 SCARG(&ua, pid) = -1; 256 SCARG(&ua, status) = SCARG(uap, status); 257 SCARG(&ua, options) = SCARG(uap, options); 258 SCARG(&ua, rusage) = SCARG(uap, rusage); 259 260 return (sys_wait4(l, &ua, retval)); 261 } 262 263 /* 264 * Ultrix binaries pass in FD_MAX as the first arg to select(). 265 * On Ultrix, FD_MAX is 4096, which is more than the NetBSD sys_select() 266 * can handle. 267 * Since we can't have more than the (native) FD_MAX descriptors open, 268 * limit nfds to at most FD_MAX. 269 */ 270 int 271 ultrix_sys_select(struct lwp *l, void *v, register_t *retval) 272 { 273 struct sys_select_args *uap = v; 274 struct timeval atv; 275 int error; 276 277 /* Limit number of FDs selected on to the native maximum */ 278 279 if (SCARG(uap, nd) > FD_SETSIZE) 280 SCARG(uap, nd) = FD_SETSIZE; 281 282 /* Check for negative timeval */ 283 if (SCARG(uap, tv)) { 284 error = copyin((caddr_t)SCARG(uap, tv), (caddr_t)&atv, 285 sizeof(atv)); 286 if (error) 287 goto done; 288 #ifdef DEBUG 289 /* Ultrix clients sometimes give negative timeouts? */ 290 if (atv.tv_sec < 0 || atv.tv_usec < 0) 291 printf("ultrix select( %ld, %ld): negative timeout\n", 292 atv.tv_sec, atv.tv_usec); 293 #endif 294 295 } 296 error = sys_select(l, (void*) uap, retval); 297 if (error == EINVAL) 298 printf("ultrix select: bad args?\n"); 299 300 done: 301 return error; 302 } 303 304 #if defined(NFS) 305 int 306 async_daemon(struct lwp *l, void *v, register_t *retval) 307 { 308 struct sys_nfssvc_args ouap; 309 310 SCARG(&ouap, flag) = NFSSVC_BIOD; 311 SCARG(&ouap, argp) = NULL; 312 313 return (sys_nfssvc(l, &ouap, retval)); 314 } 315 #endif /* NFS */ 316 317 318 #define SUN__MAP_NEW 0x80000000 /* if not, old mmap & cannot handle */ 319 320 int 321 ultrix_sys_mmap(struct lwp *l, void *v, register_t *retval) 322 { 323 struct ultrix_sys_mmap_args *uap = v; 324 struct sys_mmap_args ouap; 325 326 /* 327 * Verify the arguments. 328 */ 329 if (SCARG(uap, prot) & ~(PROT_READ|PROT_WRITE|PROT_EXEC)) 330 return (EINVAL); /* XXX still needed? */ 331 332 if ((SCARG(uap, flags) & SUN__MAP_NEW) == 0) 333 return (EINVAL); 334 335 SCARG(&ouap, flags) = SCARG(uap, flags) & ~SUN__MAP_NEW; 336 SCARG(&ouap, addr) = SCARG(uap, addr); 337 SCARG(&ouap, len) = SCARG(uap, len); 338 SCARG(&ouap, prot) = SCARG(uap, prot); 339 SCARG(&ouap, fd) = SCARG(uap, fd); 340 SCARG(&ouap, pos) = SCARG(uap, pos); 341 342 return (sys_mmap(l, &ouap, retval)); 343 } 344 345 int 346 ultrix_sys_setsockopt(struct lwp *l, void *v, register_t *retval) 347 { 348 struct ultrix_sys_setsockopt_args *uap = v; 349 struct proc *p = l->l_proc; 350 struct file *fp; 351 struct mbuf *m = NULL; 352 int error; 353 354 /* getsock() will use the descriptor for us */ 355 if ((error = getsock(p->p_fd, SCARG(uap, s), &fp)) != 0) 356 return (error); 357 #define SO_DONTLINGER (~SO_LINGER) 358 if (SCARG(uap, name) == SO_DONTLINGER) { 359 m = m_get(M_WAIT, MT_SOOPTS); 360 mtod(m, struct linger *)->l_onoff = 0; 361 m->m_len = sizeof(struct linger); 362 error = sosetopt((struct socket *)fp->f_data, SCARG(uap, level), 363 SO_LINGER, m); 364 } 365 if (SCARG(uap, level) == IPPROTO_IP) { 366 #define EMUL_IP_MULTICAST_IF 2 367 #define EMUL_IP_MULTICAST_TTL 3 368 #define EMUL_IP_MULTICAST_LOOP 4 369 #define EMUL_IP_ADD_MEMBERSHIP 5 370 #define EMUL_IP_DROP_MEMBERSHIP 6 371 static const int ipoptxlat[] = { 372 IP_MULTICAST_IF, 373 IP_MULTICAST_TTL, 374 IP_MULTICAST_LOOP, 375 IP_ADD_MEMBERSHIP, 376 IP_DROP_MEMBERSHIP 377 }; 378 if (SCARG(uap, name) >= EMUL_IP_MULTICAST_IF && 379 SCARG(uap, name) <= EMUL_IP_DROP_MEMBERSHIP) { 380 SCARG(uap, name) = 381 ipoptxlat[SCARG(uap, name) - EMUL_IP_MULTICAST_IF]; 382 } 383 } 384 if (SCARG(uap, valsize) > MLEN) { 385 error = EINVAL; 386 goto out; 387 } 388 if (SCARG(uap, val)) { 389 m = m_get(M_WAIT, MT_SOOPTS); 390 error = copyin(SCARG(uap, val), mtod(m, caddr_t), 391 (u_int)SCARG(uap, valsize)); 392 if (error) { 393 (void) m_free(m); 394 goto out; 395 } 396 m->m_len = SCARG(uap, valsize); 397 } 398 error = sosetopt((struct socket *)fp->f_data, SCARG(uap, level), 399 SCARG(uap, name), m); 400 out: 401 FILE_UNUSE(fp, p); 402 return (error); 403 } 404 405 #define ULTRIX__SYS_NMLN 32 406 407 struct ultrix_utsname { 408 char sysname[ULTRIX__SYS_NMLN]; 409 char nodename[ULTRIX__SYS_NMLN]; 410 char release[ULTRIX__SYS_NMLN]; 411 char version[ULTRIX__SYS_NMLN]; 412 char machine[ULTRIX__SYS_NMLN]; 413 }; 414 415 int 416 ultrix_sys_uname(struct lwp *l, void *v, register_t *retval) 417 { 418 struct ultrix_sys_uname_args *uap = v; 419 struct ultrix_utsname sut; 420 const char *cp; 421 char *dp, *ep; 422 423 memset(&sut, 0, sizeof(sut)); 424 425 strncpy(sut.sysname, ostype, sizeof(sut.sysname) - 1); 426 strncpy(sut.nodename, hostname, sizeof(sut.nodename) - 1); 427 strncpy(sut.release, osrelease, sizeof(sut.release) - 1); 428 dp = sut.version; 429 ep = &sut.version[sizeof(sut.version) - 1]; 430 for (cp = version; *cp && *cp != '('; cp++) 431 ; 432 for (cp++; *cp && *cp != ')' && dp < ep; cp++) 433 *dp++ = *cp; 434 for (; *cp && *cp != '#'; cp++) 435 ; 436 for (; *cp && *cp != ':' && dp < ep; cp++) 437 *dp++ = *cp; 438 *dp = '\0'; 439 strncpy(sut.machine, machine, sizeof(sut.machine) - 1); 440 441 return copyout((caddr_t)&sut, (caddr_t)SCARG(uap, name), 442 sizeof(struct ultrix_utsname)); 443 } 444 445 int 446 ultrix_sys_setpgrp(struct lwp *l, void *v, register_t *retval) 447 { 448 struct ultrix_sys_setpgrp_args *uap = v; 449 struct proc *p = l->l_proc; 450 451 /* 452 * difference to our setpgid call is to include backwards 453 * compatibility to pre-setsid() binaries. Do setsid() 454 * instead of setpgid() in those cases where the process 455 * tries to create a new session the old way. 456 */ 457 if (!SCARG(uap, pgid) && 458 (!SCARG(uap, pid) || SCARG(uap, pid) == p->p_pid)) 459 return sys_setsid(l, uap, retval); 460 else 461 return sys_setpgid(l, uap, retval); 462 } 463 464 #if defined (NFSSERVER) 465 int 466 ultrix_sys_nfssvc(struct lwp *l, void *v, register_t *retval) 467 { 468 469 #if 0 /* XXX */ 470 struct ultrix_sys_nfssvc_args *uap = v; 471 struct emul *e = p->p_emul; 472 struct sys_nfssvc_args outuap; 473 struct sockaddr sa; 474 int error; 475 caddr_t sg = stackgap_init(p, 0); 476 477 memset(&outuap, 0, sizeof outuap); 478 SCARG(&outuap, fd) = SCARG(uap, fd); 479 SCARG(&outuap, mskval) = stackgap_alloc(p, &sg, sizeof sa); 480 SCARG(&outuap, msklen) = sizeof sa; 481 SCARG(&outuap, mtchval) = stackgap_alloc(p, &sg, sizeof sa); 482 SCARG(&outuap, mtchlen) = sizeof sa; 483 484 memset(&sa, 0, sizeof sa); 485 if (error = copyout(&sa, SCARG(&outuap, mskval), SCARG(&outuap, msklen))) 486 return (error); 487 if (error = copyout(&sa, SCARG(&outuap, mtchval), SCARG(&outuap, mtchlen))) 488 return (error); 489 490 return nfssvc(l, &outuap, retval); 491 #else 492 return (ENOSYS); 493 #endif 494 } 495 #endif /* NFSSERVER */ 496 497 struct ultrix_ustat { 498 daddr_t f_tfree; /* total free */ 499 ino_t f_tinode; /* total inodes free */ 500 char f_fname[6]; /* filsys name */ 501 char f_fpack[6]; /* filsys pack name */ 502 }; 503 504 int 505 ultrix_sys_ustat(struct lwp *l, void *v, register_t *retval) 506 { 507 struct ultrix_sys_ustat_args *uap = v; 508 struct ultrix_ustat us; 509 int error; 510 511 memset(&us, 0, sizeof us); 512 513 /* 514 * XXX: should set f_tfree and f_tinode at least 515 * How do we translate dev -> fstat? (and then to ultrix_ustat) 516 */ 517 518 if ((error = copyout(&us, SCARG(uap, buf), sizeof us)) != 0) 519 return (error); 520 return 0; 521 } 522 523 int 524 ultrix_sys_quotactl(struct lwp *l, void *v, register_t *retval) 525 { 526 527 #ifdef notyet 528 struct ultrix_sys_quotactl_args *uap = v; 529 #endif 530 531 return EINVAL; 532 } 533 534 int 535 ultrix_sys_vhangup(struct lwp *l, void *v, register_t *retval) 536 { 537 538 return 0; 539 } 540 541 542 /* 543 * RISC Ultrix cache control syscalls 544 */ 545 #ifdef __mips 546 int 547 ultrix_sys_cacheflush(struct lwp *l, void *v, register_t *retval) 548 { 549 struct ultrix_sys_cacheflush_args /* { 550 syscallarg(void *) addr; 551 syscallarg(unsigned) nbytes; 552 syscallarg(int) flag; 553 } */ *uap = v; 554 struct proc *p = l->l_proc; 555 vaddr_t va = (vaddr_t)SCARG(uap, addr); 556 int nbytes = SCARG(uap, nbytes); 557 int whichcache = SCARG(uap, whichcache); 558 559 return (mips_user_cacheflush(p, va, nbytes, whichcache)); 560 } 561 562 563 int 564 ultrix_sys_cachectl(struct lwp *l, void *v, register_t *retval) 565 { 566 struct ultrix_sys_cachectl_args /* { 567 syscallarg(void *) addr; 568 syscallarg(int) nbytes; 569 syscallarg(int) cacheop; 570 } */ *uap = v; 571 struct proc *p = l->l_proc; 572 vaddr_t va = (vaddr_t)SCARG(uap, addr); 573 int nbytes = SCARG(uap, nbytes); 574 int cacheop = SCARG(uap, cacheop); 575 576 return mips_user_cachectl(p, va, nbytes, cacheop); 577 } 578 579 #endif /* __mips */ 580 581 582 int 583 ultrix_sys_exportfs(struct lwp *l, void *v, register_t *retval) 584 { 585 #ifdef notyet 586 struct ultrix_sys_exportfs_args *uap = v; 587 #endif 588 589 /* 590 * XXX: should perhaps translate into a mount(2) 591 * with MOUNT_EXPORT? 592 */ 593 return 0; 594 } 595 596 int 597 ultrix_sys_sigpending(struct lwp *l, void *v, register_t *retval) 598 { 599 struct ultrix_sys_sigpending_args *uap = v; 600 sigset_t ss; 601 int mask; 602 603 sigpending1(l->l_proc, &ss); 604 mask = ss.__bits[0]; 605 606 return (copyout((caddr_t)&mask, (caddr_t)SCARG(uap, mask), sizeof(int))); 607 } 608 609 int 610 ultrix_sys_sigreturn(struct lwp *l, void *v, register_t *retval) 611 { 612 struct ultrix_sys_sigreturn_args *uap = v; 613 614 /* struct sigcontext13 is close enough to Ultrix */ 615 616 return (compat_13_sys_sigreturn(l, uap, retval)); 617 } 618 619 int 620 ultrix_sys_sigcleanup(struct lwp *l, void *v, register_t *retval) 621 { 622 struct ultrix_sys_sigcleanup_args *uap = v; 623 624 /* struct sigcontext13 is close enough to Ultrix */ 625 626 return (compat_13_sys_sigreturn(l, uap, retval)); 627 } 628 629 int 630 ultrix_sys_sigsuspend(struct lwp *l, void *v, register_t *retval) 631 { 632 struct ultrix_sys_sigsuspend_args *uap = v; 633 int mask = SCARG(uap, mask); 634 sigset_t ss; 635 636 ss.__bits[0] = mask; 637 ss.__bits[1] = 0; 638 ss.__bits[2] = 0; 639 ss.__bits[3] = 0; 640 641 return (sigsuspend1(l->l_proc, &ss)); 642 } 643 644 #define ULTRIX_SV_ONSTACK 0x0001 /* take signal on signal stack */ 645 #define ULTRIX_SV_INTERRUPT 0x0002 /* do not restart system on signal return */ 646 #define ULTRIX_SV_OLDSIG 0x1000 /* Emulate old signal() for POSIX */ 647 648 int 649 ultrix_sys_sigvec(struct lwp *l, void *v, register_t *retval) 650 { 651 struct ultrix_sys_sigvec_args *uap = v; 652 struct sigvec nsv, osv; 653 struct sigaction nsa, osa; 654 int error; 655 656 if (SCARG(uap, nsv)) { 657 error = copyin(SCARG(uap, nsv), &nsv, sizeof(nsv)); 658 if (error) 659 return (error); 660 nsa.sa_handler = nsv.sv_handler; 661 #if 0 /* documentation */ 662 /* ONSTACK is identical */ 663 nsa.sa_flags = nsv.sv_flags & ULTRIX_SV_ONSTACK; 664 if ((nsv.sv_flags & ULTRIX_SV_OLDSIG) 665 /* old signal() - always restart */ 666 || (!(nsv.sv_flags & ULTRIX_SV_INTERRUPT)) 667 /* inverted meaning (same bit) */ 668 ) 669 nsa.sa_flags |= SA_RESTART; 670 #else /* optimized - assuming ULTRIX_SV_OLDSIG=>!ULTRIX_SV_INTERRUPT */ 671 nsa.sa_flags = nsv.sv_flags & ~ULTRIX_SV_OLDSIG; 672 nsa.sa_flags ^= SA_RESTART; 673 #endif 674 native_sigset13_to_sigset(&nsv.sv_mask, &nsa.sa_mask); 675 } 676 error = sigaction1(l->l_proc, SCARG(uap, signum), 677 SCARG(uap, nsv) ? &nsa : 0, SCARG(uap, osv) ? &osa : 0, 678 NULL, 0); 679 if (error) 680 return (error); 681 if (SCARG(uap, osv)) { 682 osv.sv_handler = osa.sa_handler; 683 osv.sv_flags = osa.sa_flags ^ SA_RESTART; 684 osv.sv_flags &= (ULTRIX_SV_ONSTACK | ULTRIX_SV_INTERRUPT); 685 native_sigset_to_sigset13(&osa.sa_mask, &osv.sv_mask); 686 error = copyout(&osv, SCARG(uap, osv), sizeof(osv)); 687 if (error) 688 return (error); 689 } 690 return (0); 691 } 692 693 int 694 ultrix_sys_shmsys(struct lwp *l, void *v, register_t *retval) 695 { 696 697 #ifdef SYSVSHM 698 /* Ultrix SVSHM weirndess: */ 699 struct ultrix_sys_shmsys_args *uap = v; 700 struct sys_shmat_args shmat_args; 701 struct compat_14_sys_shmctl_args shmctl_args; 702 struct sys_shmdt_args shmdt_args; 703 struct sys_shmget_args shmget_args; 704 705 706 switch (SCARG(uap, shmop)) { 707 case 0: /* Ultrix shmat() */ 708 SCARG(&shmat_args, shmid) = SCARG(uap, a2); 709 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a3); 710 SCARG(&shmat_args, shmflg) = SCARG(uap, a4); 711 return (sys_shmat(l, &shmat_args, retval)); 712 713 case 1: /* Ultrix shmctl() */ 714 SCARG(&shmctl_args, shmid) = SCARG(uap, a2); 715 SCARG(&shmctl_args, cmd) = SCARG(uap, a3); 716 SCARG(&shmctl_args, buf) = (struct shmid_ds14 *)SCARG(uap, a4); 717 return (compat_14_sys_shmctl(l, &shmctl_args, retval)); 718 719 case 2: /* Ultrix shmdt() */ 720 SCARG(&shmat_args, shmaddr) = (void *)SCARG(uap, a2); 721 return (sys_shmdt(l, &shmdt_args, retval)); 722 723 case 3: /* Ultrix shmget() */ 724 SCARG(&shmget_args, key) = SCARG(uap, a2); 725 SCARG(&shmget_args, size) = SCARG(uap, a3); 726 SCARG(&shmget_args, shmflg) = SCARG(uap, a4) 727 & (IPC_CREAT|IPC_EXCL|IPC_NOWAIT); 728 return (sys_shmget(l, &shmget_args, retval)); 729 730 default: 731 return (EINVAL); 732 } 733 #else 734 return (EOPNOTSUPP); 735 #endif /* SYSVSHM */ 736 } 737 738 static int 739 ultrix_to_bsd_flock(struct ultrix_flock *ufl, struct flock *fl) 740 { 741 742 fl->l_start = ufl->l_start; 743 fl->l_len = ufl->l_len; 744 fl->l_pid = ufl->l_pid; 745 fl->l_whence = ufl->l_whence; 746 747 switch (ufl->l_type) { 748 case ULTRIX_F_RDLCK: 749 fl->l_type = F_RDLCK; 750 break; 751 case ULTRIX_F_WRLCK: 752 fl->l_type = F_WRLCK; 753 break; 754 case ULTRIX_F_UNLCK: 755 fl->l_type = F_UNLCK; 756 break; 757 default: 758 return (EINVAL); 759 } 760 761 return (0); 762 } 763 764 static void 765 bsd_to_ultrix_flock(struct flock *fl, struct ultrix_flock *ufl) 766 { 767 768 ufl->l_start = fl->l_start; 769 ufl->l_len = fl->l_len; 770 ufl->l_pid = fl->l_pid; 771 ufl->l_whence = fl->l_whence; 772 773 switch (fl->l_type) { 774 case F_RDLCK: 775 ufl->l_type = ULTRIX_F_RDLCK; 776 break; 777 case F_WRLCK: 778 ufl->l_type = ULTRIX_F_WRLCK; 779 break; 780 case F_UNLCK: 781 ufl->l_type = ULTRIX_F_UNLCK; 782 break; 783 } 784 } 785 786 int 787 ultrix_sys_fcntl(struct lwp *l, void *v, register_t *retval) 788 { 789 struct ultrix_sys_fcntl_args *uap = v; 790 struct proc *p = l->l_proc; 791 int error; 792 struct ultrix_flock ufl; 793 struct flock fl, *flp = NULL; /* XXX gcc */ 794 caddr_t sg; 795 struct sys_fcntl_args *args, fca; 796 797 switch (SCARG(uap, cmd)) { 798 case F_GETLK: 799 case F_SETLK: 800 case F_SETLKW: 801 error = copyin(SCARG(uap, arg), &ufl, sizeof(ufl)); 802 if (error) 803 return (error); 804 error = ultrix_to_bsd_flock(&ufl, &fl); 805 if (error) 806 return (error); 807 sg = stackgap_init(p, 0); 808 flp = (struct flock *)stackgap_alloc(p, &sg, sizeof(*flp)); 809 error = copyout(&fl, flp, sizeof(*flp)); 810 if (error) 811 return (error); 812 813 SCARG(&fca, fd) = SCARG(uap, fd); 814 SCARG(&fca, cmd) = SCARG(uap, cmd); 815 SCARG(&fca, arg) = flp; 816 args = &fca; 817 break; 818 default: 819 args = v; 820 break; 821 } 822 823 error = sys_fcntl(l, args, retval); 824 if (error) 825 return (error); 826 827 switch (SCARG(uap, cmd)) { 828 case F_GETLK: 829 error = copyin(flp, &fl, sizeof(fl)); 830 if (error) 831 return (error); 832 bsd_to_ultrix_flock(&fl, &ufl); 833 error = copyout(&ufl, SCARG(uap, arg), sizeof(ufl)); 834 break; 835 } 836 837 return (error); 838 } 839
Indexes created Mon Sep 22 10:09:38 GMT 2025