netbsd32_compat_43.c revision 1.47
1 /* $NetBSD: netbsd32_compat_43.c,v 1.47 2007/12/20 23:03:01 dsl Exp $ */ 2 3 /* 4 * Copyright (c) 1998, 2001 Matthew R. Green 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. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 23 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 24 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 25 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31 #include <sys/cdefs.h> 32 __KERNEL_RCSID(0, "$NetBSD: netbsd32_compat_43.c,v 1.47 2007/12/20 23:03:01 dsl Exp $"); 33 34 #if defined(_KERNEL_OPT) 35 #include "opt_compat_43.h" 36 #endif 37 38 #include <sys/param.h> 39 #include <sys/systm.h> 40 #include <sys/fcntl.h> 41 #include <sys/filedesc.h> 42 #include <sys/malloc.h> 43 #include <sys/mbuf.h> 44 #include <sys/mount.h> 45 #include <sys/namei.h> 46 #include <sys/socket.h> 47 #include <sys/proc.h> 48 #include <sys/socket.h> 49 #include <sys/socketvar.h> 50 #include <sys/stat.h> 51 #include <sys/syscallargs.h> 52 #include <sys/time.h> 53 #include <sys/ucred.h> 54 #include <sys/vfs_syscalls.h> 55 #include <uvm/uvm_extern.h> 56 #include <sys/sysctl.h> 57 #include <sys/swap.h> 58 59 #include <compat/netbsd32/netbsd32.h> 60 #include <compat/netbsd32/netbsd32_syscallargs.h> 61 62 #include <compat/sys/stat.h> 63 #include <compat/sys/signal.h> 64 #include <compat/sys/signalvar.h> 65 #include <compat/sys/socket.h> 66 67 #define SYS_DEF(foo) struct foo##_args; \ 68 int foo(struct lwp *, const struct foo##_args *, register_t *) 69 70 SYS_DEF(compat_43_netbsd32_sethostid); 71 SYS_DEF(compat_43_netbsd32_killpg); 72 SYS_DEF(compat_43_netbsd32_sigblock); 73 SYS_DEF(compat_43_netbsd32_sigblock); 74 SYS_DEF(compat_43_netbsd32_sigsetmask); 75 #undef SYS_DEF 76 77 static void 78 netbsd32_from_stat(const struct stat *sb, struct netbsd32_stat43 *sp32) 79 { 80 81 sp32->st_dev = sb->st_dev; 82 sp32->st_ino = sb->st_ino; 83 sp32->st_mode = sb->st_mode; 84 sp32->st_nlink = sb->st_nlink; 85 sp32->st_uid = sb->st_uid; 86 sp32->st_gid = sb->st_gid; 87 sp32->st_rdev = sb->st_rdev; 88 sp32->st_size = sb->st_size < (quad_t)1 << 32 ? sb->st_size : -2; 89 sp32->st_atimespec.tv_sec = sb->st_atimespec.tv_sec; 90 sp32->st_atimespec.tv_nsec = sb->st_atimespec.tv_nsec; 91 sp32->st_mtimespec.tv_sec = sb->st_mtimespec.tv_sec; 92 sp32->st_mtimespec.tv_nsec = sb->st_mtimespec.tv_nsec; 93 sp32->st_ctimespec.tv_sec = sb->st_ctimespec.tv_sec; 94 sp32->st_ctimespec.tv_nsec = sb->st_ctimespec.tv_nsec; 95 sp32->st_blksize = sb->st_blksize; 96 sp32->st_blocks = sb->st_blocks; 97 sp32->st_flags = sb->st_flags; 98 sp32->st_gen = sb->st_gen; 99 } 100 101 /* file system syscalls */ 102 int 103 compat_43_netbsd32_ocreat(struct lwp *l, const struct compat_43_netbsd32_ocreat_args *uap, register_t *retval) 104 { 105 /* { 106 syscallarg(const netbsd32_charp) path; 107 syscallarg(mode_t) mode; 108 } */ 109 struct sys_open_args ua; 110 111 NETBSD32TOP_UAP(path, const char); 112 NETBSD32TO64_UAP(mode); 113 SCARG(&ua, flags) = O_WRONLY | O_CREAT | O_TRUNC; 114 115 return (sys_open(l, &ua, retval)); 116 } 117 118 int 119 compat_43_netbsd32_olseek(struct lwp *l, const struct compat_43_netbsd32_olseek_args *uap, register_t *retval) 120 { 121 /* { 122 syscallarg(int) fd; 123 syscallarg(netbsd32_long) offset; 124 syscallarg(int) whence; 125 } */ 126 struct sys_lseek_args ua; 127 int rv; 128 off_t rt; 129 130 SCARG(&ua, fd) = SCARG(uap, fd); 131 NETBSD32TOX_UAP(offset, long); 132 NETBSD32TO64_UAP(whence); 133 rv = sys_lseek(l, &ua, (register_t *)&rt); 134 *retval = rt; 135 136 return (rv); 137 } 138 139 int 140 compat_43_netbsd32_stat43(struct lwp *l, const struct compat_43_netbsd32_stat43_args *uap, register_t *retval) 141 { 142 /* { 143 syscallarg(const netbsd32_charp) path; 144 syscallarg(netbsd32_stat43p_t) ub; 145 } */ 146 struct stat sb; 147 struct netbsd32_stat43 sb32; 148 int error; 149 150 error = do_sys_stat(l, SCARG_P32(uap, path), FOLLOW, &sb); 151 if (error == 0) { 152 netbsd32_from_stat(&sb, &sb32); 153 error = copyout(&sb32, SCARG_P32(uap, ub), sizeof(sb32)); 154 } 155 return error; 156 } 157 158 int 159 compat_43_netbsd32_lstat43(struct lwp *l, const struct compat_43_netbsd32_lstat43_args *uap, register_t *retval) 160 { 161 /* { 162 syscallarg(const netbsd32_charp) path; 163 syscallarg(netbsd32_stat43p_t) ub; 164 } */ 165 struct stat sb; 166 struct netbsd32_stat43 sb32; 167 int error; 168 169 error = do_sys_stat(l, SCARG_P32(uap, path), NOFOLLOW, &sb); 170 if (error == 0) { 171 netbsd32_from_stat(&sb, &sb32); 172 error = copyout(&sb32, SCARG_P32(uap, ub), sizeof(sb32)); 173 } 174 return error; 175 } 176 177 int 178 compat_43_netbsd32_fstat43(struct lwp *l, const struct compat_43_netbsd32_fstat43_args *uap, register_t *retval) 179 { 180 /* { 181 syscallarg(int) fd; 182 syscallarg(netbsd32_stat43p_t) sb; 183 } */ 184 struct stat sb; 185 struct netbsd32_stat43 sb32; 186 int error; 187 188 error = do_sys_fstat(l, SCARG(uap, fd), &sb); 189 if (error == 0) { 190 netbsd32_from_stat(&sb, &sb32); 191 error = copyout(&sb32, SCARG_P32(uap, sb), sizeof(sb32)); 192 } 193 return error; 194 } 195 196 int 197 compat_43_netbsd32_otruncate(struct lwp *l, const struct compat_43_netbsd32_otruncate_args *uap, register_t *retval) 198 { 199 /* { 200 syscallarg(const netbsd32_charp) path; 201 syscallarg(netbsd32_long) length; 202 } */ 203 struct sys_truncate_args ua; 204 205 NETBSD32TOP_UAP(path, const char); 206 NETBSD32TO64_UAP(length); 207 return (sys_truncate(l, &ua, retval)); 208 } 209 210 int 211 compat_43_netbsd32_oftruncate(struct lwp *l, const struct compat_43_netbsd32_oftruncate_args *uap, register_t *retval) 212 { 213 /* { 214 syscallarg(int) fd; 215 syscallarg(netbsd32_long) length; 216 } */ 217 struct sys_ftruncate_args ua; 218 219 NETBSD32TO64_UAP(fd); 220 NETBSD32TO64_UAP(length); 221 return (sys_ftruncate(l, &ua, retval)); 222 } 223 224 int 225 compat_43_netbsd32_ogetdirentries(struct lwp *l, const struct compat_43_netbsd32_ogetdirentries_args *uap, register_t *retval) 226 { 227 /* { 228 syscallarg(int) fd; 229 syscallarg(netbsd32_charp) buf; 230 syscallarg(u_int) count; 231 syscallarg(netbsd32_longp) basep; 232 } */ 233 struct compat_43_sys_getdirentries_args ua; 234 235 NETBSD32TO64_UAP(fd); 236 NETBSD32TOP_UAP(buf, char); 237 NETBSD32TO64_UAP(count); 238 NETBSD32TOP_UAP(basep, long); 239 return (compat_43_sys_getdirentries(l, &ua, retval)); 240 } 241 242 /* kernel syscalls */ 243 int 244 compat_43_netbsd32_ogetkerninfo(struct lwp *l, const struct compat_43_netbsd32_ogetkerninfo_args *uap, register_t *retval) 245 { 246 /* { 247 syscallarg(int) op; 248 syscallarg(netbsd32_charp) where; 249 syscallarg(netbsd32_intp) size; 250 syscallarg(int) arg; 251 } */ 252 struct compat_43_sys_getkerninfo_args ua; 253 254 NETBSD32TO64_UAP(op); 255 NETBSD32TOP_UAP(where, char); 256 NETBSD32TOP_UAP(size, int); 257 NETBSD32TO64_UAP(arg); 258 return (compat_43_sys_getkerninfo(l, &ua, retval)); 259 } 260 261 int 262 compat_43_netbsd32_ogethostname(struct lwp *l, const struct compat_43_netbsd32_ogethostname_args *uap, register_t *retval) 263 { 264 /* { 265 syscallarg(netbsd32_charp) hostname; 266 syscallarg(u_int) len; 267 } */ 268 int name[2]; 269 size_t sz; 270 271 name[0] = CTL_KERN; 272 name[1] = KERN_HOSTNAME; 273 sz = SCARG(uap, len); 274 return (old_sysctl(&name[0], 2, 275 SCARG_P32(uap, hostname), &sz, 0, 0, l)); 276 } 277 278 int 279 compat_43_netbsd32_osethostname(struct lwp *l, const struct compat_43_netbsd32_osethostname_args *uap, register_t *retval) 280 { 281 /* { 282 syscallarg(netbsd32_charp) hostname; 283 syscallarg(u_int) len; 284 } */ 285 int name[2]; 286 287 name[0] = CTL_KERN; 288 name[1] = KERN_HOSTNAME; 289 return old_sysctl(&name[0], 2, 0, 0, (char *)SCARG_P32(uap, 290 hostname), SCARG(uap, len), l); 291 } 292 293 int 294 compat_43_netbsd32_sethostid(struct lwp *l, const struct compat_43_netbsd32_sethostid_args *uap, register_t *retval) 295 { 296 /* { 297 syscallarg(int32_t) hostid; 298 } */ 299 struct compat_43_sys_sethostid_args ua; 300 301 NETBSD32TO64_UAP(hostid); 302 return (compat_43_sys_sethostid(l, &ua, retval)); 303 } 304 305 int 306 compat_43_netbsd32_ogetrlimit(struct lwp *l, const struct compat_43_netbsd32_ogetrlimit_args *uap, register_t *retval) 307 { 308 /* { 309 syscallarg(int) which; 310 syscallarg(netbsd32_orlimitp_t) rlp; 311 } */ 312 struct compat_43_sys_getrlimit_args ua; 313 314 NETBSD32TO64_UAP(which); 315 NETBSD32TOP_UAP(rlp, struct orlimit); 316 return (compat_43_sys_getrlimit(l, &ua, retval)); 317 } 318 319 int 320 compat_43_netbsd32_osetrlimit(struct lwp *l, const struct compat_43_netbsd32_osetrlimit_args *uap, register_t *retval) 321 { 322 /* { 323 syscallarg(int) which; 324 syscallarg(netbsd32_orlimitp_t) rlp; 325 } */ 326 struct compat_43_sys_setrlimit_args ua; 327 328 NETBSD32TO64_UAP(which); 329 NETBSD32TOP_UAP(rlp, struct orlimit); 330 return (compat_43_sys_setrlimit(l, &ua, retval)); 331 } 332 333 int 334 compat_43_netbsd32_killpg(struct lwp *l, const struct compat_43_netbsd32_killpg_args *uap, register_t *retval) 335 { 336 /* { 337 syscallarg(int) pgid; 338 syscallarg(int) signum; 339 } */ 340 struct compat_43_sys_killpg_args ua; 341 342 NETBSD32TO64_UAP(pgid); 343 NETBSD32TO64_UAP(signum); 344 return (compat_43_sys_killpg(l, &ua, retval)); 345 } 346 347 /* virtual memory syscalls */ 348 int 349 compat_43_netbsd32_ommap(struct lwp *l, const struct compat_43_netbsd32_ommap_args *uap, register_t *retval) 350 { 351 /* { 352 syscallarg(netbsd32_caddr_t) addr; 353 syscallarg(netbsd32_size_t) len; 354 syscallarg(int) prot; 355 syscallarg(int) flags; 356 syscallarg(int) fd; 357 syscallarg(netbsd32_long) pos; 358 } */ 359 struct compat_43_sys_mmap_args ua; 360 361 NETBSD32TOP_UAP(addr, void *); 362 NETBSD32TOX_UAP(len, size_t); 363 NETBSD32TO64_UAP(prot); 364 NETBSD32TO64_UAP(flags); 365 NETBSD32TO64_UAP(fd); 366 NETBSD32TOX_UAP(pos, long); 367 return (compat_43_sys_mmap(l, &ua, retval)); 368 } 369 370 /* network syscalls */ 371 int 372 compat_43_netbsd32_oaccept(struct lwp *l, const struct compat_43_netbsd32_oaccept_args *uap, register_t *retval) 373 { 374 /* { 375 syscallarg(int) s; 376 syscallarg(netbsd32_caddr_t) name; 377 syscallarg(netbsd32_intp) anamelen; 378 } */ 379 struct compat_43_sys_accept_args ua; 380 381 NETBSD32TOX_UAP(s, int); 382 NETBSD32TOP_UAP(name, void *); 383 NETBSD32TOP_UAP(anamelen, int); 384 return (compat_43_sys_accept(l, &ua, retval)); 385 } 386 387 int 388 compat_43_netbsd32_osend(struct lwp *l, const struct compat_43_netbsd32_osend_args *uap, register_t *retval) 389 { 390 /* { 391 syscallarg(int) s; 392 syscallarg(netbsd32_caddr_t) buf; 393 syscallarg(int) len; 394 syscallarg(int) flags; 395 } */ 396 struct compat_43_sys_send_args ua; 397 398 NETBSD32TO64_UAP(s); 399 NETBSD32TOP_UAP(buf, void *); 400 NETBSD32TO64_UAP(len); 401 NETBSD32TO64_UAP(flags); 402 return (compat_43_sys_send(l, &ua, retval)); 403 } 404 405 int 406 compat_43_netbsd32_orecv(struct lwp *l, const struct compat_43_netbsd32_orecv_args *uap, register_t *retval) 407 { 408 /* { 409 syscallarg(int) s; 410 syscallarg(netbsd32_caddr_t) buf; 411 syscallarg(int) len; 412 syscallarg(int) flags; 413 } */ 414 struct compat_43_sys_recv_args ua; 415 416 NETBSD32TO64_UAP(s); 417 NETBSD32TOP_UAP(buf, void *); 418 NETBSD32TO64_UAP(len); 419 NETBSD32TO64_UAP(flags); 420 return (compat_43_sys_recv(l, &ua, retval)); 421 } 422 423 /* 424 * This is a brutal clone of compat_43_sys_recvmsg(). 425 */ 426 int 427 compat_43_netbsd32_orecvmsg(struct lwp *l, const struct compat_43_netbsd32_orecvmsg_args *uap, register_t *retval) 428 { 429 /* { 430 syscallarg(int) s; 431 syscallarg(netbsd32_omsghdrp_t) msg; 432 syscallarg(int) flags; 433 } */ 434 struct netbsd32_omsghdr omsg; 435 struct msghdr msg; 436 struct mbuf *from, *control; 437 struct iovec *iov, aiov[UIO_SMALLIOV]; 438 int error; 439 440 error = copyin(SCARG_P32(uap, msg), &omsg, sizeof (struct omsghdr)); 441 if (error) 442 return (error); 443 444 if (NETBSD32PTR64(omsg.msg_accrights) == NULL) 445 omsg.msg_accrightslen = 0; 446 /* it was this way in 4.4BSD */ 447 if (omsg.msg_accrightslen > MLEN) 448 return EINVAL; 449 450 iov = netbsd32_get_iov(NETBSD32PTR64(omsg.msg_iov), omsg.msg_iovlen, 451 aiov, __arraycount(aiov)); 452 if (iov == NULL) 453 return EFAULT; 454 455 msg.msg_name = NETBSD32PTR64(omsg.msg_name); 456 msg.msg_namelen = omsg.msg_namelen; 457 msg.msg_iovlen = omsg.msg_iovlen; 458 msg.msg_iov = iov; 459 msg.msg_flags = SCARG(uap, flags) & MSG_USERFLAGS; 460 461 error = do_sys_recvmsg(l, SCARG(uap, s), &msg, &from, 462 NETBSD32PTR64(omsg.msg_accrights) != NULL ? &control : NULL, 463 retval); 464 if (error != 0) 465 return error; 466 467 /* 468 * If there is any control information and it's SCM_RIGHTS, 469 * pass it back to the program. 470 * XXX: maybe there can be more than one chunk of control data? 471 */ 472 if (NETBSD32PTR64(omsg.msg_accrights) != NULL && control != NULL) { 473 struct cmsghdr *cmsg = mtod(control, void *); 474 475 if (cmsg->cmsg_level == SOL_SOCKET 476 && cmsg->cmsg_type == SCM_RIGHTS 477 && cmsg->cmsg_len < omsg.msg_accrightslen 478 && copyout(CMSG_DATA(cmsg), 479 NETBSD32PTR64(omsg.msg_accrights), 480 cmsg->cmsg_len) == 0) { 481 omsg.msg_accrightslen = cmsg->cmsg_len; 482 free_control_mbuf(l, control, control->m_next); 483 } else { 484 omsg.msg_accrightslen = 0; 485 free_control_mbuf(l, control, control); 486 } 487 } else 488 omsg.msg_accrightslen = 0; 489 490 if (from != NULL) 491 /* convert from sockaddr sa_family to osockaddr one here */ 492 mtod(from, struct osockaddr *)->sa_family = 493 mtod(from, struct sockaddr *)->sa_family; 494 495 error = copyout_sockname(NETBSD32PTR64(omsg.msg_name), 496 &omsg.msg_namelen, 0, from); 497 if (from != NULL) 498 m_free(from); 499 500 if (error != 0) 501 error = copyout(&omsg, SCARG_P32(uap, msg), sizeof(omsg)); 502 503 return error; 504 } 505 506 int 507 compat_43_netbsd32_osendmsg(struct lwp *l, const struct compat_43_netbsd32_osendmsg_args *uap, register_t *retval) 508 { 509 /* { 510 syscallarg(int) s; 511 syscallarg(netbsd32_caddr_t) msg; 512 syscallarg(int) flags; 513 } */ 514 struct iovec *iov, aiov[UIO_SMALLIOV]; 515 struct netbsd32_omsghdr omsg; 516 struct msghdr msg; 517 int error; 518 struct mbuf *nam; 519 struct osockaddr *osa; 520 struct sockaddr *sa; 521 522 error = copyin(SCARG_P32(uap, msg), &omsg, sizeof (struct omsghdr)); 523 if (error != 0) 524 return (error); 525 526 iov = netbsd32_get_iov(NETBSD32PTR64(omsg.msg_iov), omsg.msg_iovlen, 527 aiov, __arraycount(aiov)); 528 if (iov == NULL) 529 return EFAULT; 530 531 msg.msg_iovlen = omsg.msg_iovlen; 532 msg.msg_iov = iov; 533 msg.msg_flags = MSG_NAMEMBUF; 534 535 error = sockargs(&nam, NETBSD32PTR64(omsg.msg_name), omsg.msg_namelen, 536 MT_SONAME); 537 if (error != 0) 538 goto out; 539 540 sa = mtod(nam, void *); 541 osa = mtod(nam, void *); 542 sa->sa_family = osa->sa_family; 543 sa->sa_len = omsg.msg_namelen; 544 545 msg.msg_name = nam; 546 msg.msg_namelen = omsg.msg_namelen; 547 error = compat43_set_accrights(&msg, NETBSD32PTR64(omsg.msg_accrights), 548 omsg.msg_accrightslen); 549 if (error != 0) { 550 m_free(nam); 551 goto out; 552 } 553 554 error = do_sys_sendmsg(l, SCARG(uap, s), &msg, SCARG(uap, flags), retval); 555 556 out: 557 if (iov != aiov) 558 free(iov, M_TEMP); 559 return (error); 560 } 561 562 int 563 compat_43_netbsd32_orecvfrom(struct lwp *l, const struct compat_43_netbsd32_orecvfrom_args *uap, register_t *retval) 564 { 565 /* { 566 syscallarg(int) s; 567 syscallarg(netbsd32_caddr_t) buf; 568 syscallarg(netbsd32_size_t) len; 569 syscallarg(int) flags; 570 syscallarg(netbsd32_caddr_t) from; 571 syscallarg(netbsd32_intp) fromlenaddr; 572 } */ 573 struct compat_43_sys_recvfrom_args ua; 574 575 NETBSD32TO64_UAP(s); 576 NETBSD32TOP_UAP(buf, void *); 577 NETBSD32TOX_UAP(len, size_t); 578 NETBSD32TO64_UAP(flags); 579 NETBSD32TOP_UAP(from, void *); 580 NETBSD32TOP_UAP(fromlenaddr, int); 581 return (compat_43_sys_recvfrom(l, &ua, retval)); 582 } 583 584 int 585 compat_43_netbsd32_ogetsockname(struct lwp *l, const struct compat_43_netbsd32_ogetsockname_args *uap, register_t *retval) 586 { 587 /* { 588 syscallarg(int) fdec; 589 syscallarg(netbsd32_caddr_t) asa; 590 syscallarg(netbsd32_intp) alen; 591 } */ 592 struct compat_43_sys_getsockname_args ua; 593 594 NETBSD32TO64_UAP(fdec); 595 NETBSD32TOP_UAP(asa, void *); 596 NETBSD32TOP_UAP(alen, int *); 597 return (compat_43_sys_getsockname(l, &ua, retval)); 598 } 599 600 int 601 compat_43_netbsd32_ogetpeername(struct lwp *l, const struct compat_43_netbsd32_ogetpeername_args *uap, register_t *retval) 602 { 603 /* { 604 syscallarg(int) fdes; 605 syscallarg(netbsd32_caddr_t) asa; 606 syscallarg(netbsd32_intp) alen; 607 } */ 608 struct compat_43_sys_getpeername_args ua; 609 610 NETBSD32TO64_UAP(fdes); 611 NETBSD32TOP_UAP(asa, void *); 612 NETBSD32TOP_UAP(alen, int *); 613 return (compat_43_sys_getpeername(l, &ua, retval)); 614 } 615 616 /* signal syscalls */ 617 int 618 compat_43_netbsd32_osigvec(struct lwp *l, const struct compat_43_netbsd32_osigvec_args *uap, register_t *retval) 619 { 620 /* { 621 syscallarg(int) signum; 622 syscallarg(netbsd32_sigvecp_t) nsv; 623 syscallarg(netbsd32_sigvecp_t) osv; 624 } */ 625 struct netbsd32_sigvec sv32; 626 struct sigaction nsa, osa; 627 int error; 628 629 if (SCARG(uap, signum) >= 32) 630 return EINVAL; 631 632 if (SCARG_P32(uap, nsv)) { 633 error = copyin(SCARG_P32(uap, nsv), &sv32, sizeof(sv32)); 634 if (error) 635 return error; 636 nsa.sa_handler = NETBSD32PTR64(sv32.sv_handler); 637 nsa.sa_mask.__bits[0] = sv32.sv_mask; 638 nsa.sa_mask.__bits[1] = 0; 639 nsa.sa_mask.__bits[2] = 0; 640 nsa.sa_mask.__bits[3] = 0; 641 nsa.sa_flags = sv32.sv_flags ^ SA_RESTART; 642 error = sigaction1(l, SCARG(uap, signum), &nsa, &osa, NULL, 0); 643 } else 644 error = sigaction1(l, SCARG(uap, signum), NULL, &osa, NULL, 0); 645 if (error) 646 return error; 647 648 if (SCARG_P32(uap, osv)) { 649 NETBSD32PTR32(sv32.sv_handler, osa.sa_handler); 650 sv32.sv_mask = osa.sa_mask.__bits[0]; 651 sv32.sv_flags = osa.sa_flags ^ SA_RESTART; 652 error = copyout(&sv32, SCARG_P32(uap, osv), sizeof(sv32)); 653 } 654 655 return error; 656 } 657 658 int 659 compat_43_netbsd32_sigblock(struct lwp *l, const struct compat_43_netbsd32_sigblock_args *uap, register_t *retval) 660 { 661 /* { 662 syscallarg(int) mask; 663 } */ 664 struct compat_43_sys_sigblock_args ua; 665 666 NETBSD32TO64_UAP(mask); 667 return (compat_43_sys_sigblock(l, &ua, retval)); 668 } 669 670 int 671 compat_43_netbsd32_sigsetmask(struct lwp *l, const struct compat_43_netbsd32_sigsetmask_args *uap, register_t *retval) 672 { 673 /* { 674 syscallarg(int) mask; 675 } */ 676 struct compat_43_sys_sigsetmask_args ua; 677 678 NETBSD32TO64_UAP(mask); 679 return (compat_43_sys_sigsetmask(l, &ua, retval)); 680 } 681 682 int 683 compat_43_netbsd32_osigstack(struct lwp *l, const struct compat_43_netbsd32_osigstack_args *uap, register_t *retval) 684 { 685 /* { 686 syscallarg(netbsd32_sigstackp_t) nss; 687 syscallarg(netbsd32_sigstackp_t) oss; 688 } */ 689 struct netbsd32_sigstack ss32; 690 struct sigaltstack nsa, osa; 691 int error; 692 693 if (SCARG_P32(uap, nss)) { 694 error = copyin(SCARG_P32(uap, nss), &ss32, sizeof(ss32)); 695 if (error) 696 return error; 697 nsa.ss_sp = NETBSD32PTR64(ss32.ss_sp); 698 nsa.ss_size = SIGSTKSZ; /* Use the recommended size */ 699 nsa.ss_flags = ss32.ss_onstack ? SS_ONSTACK : 0; 700 error = sigaltstack1(l, &nsa, &osa); 701 } else 702 error = sigaltstack1(l, NULL, &osa); 703 if (error) 704 return error; 705 706 if (SCARG_P32(uap, oss)) { 707 NETBSD32PTR32(ss32.ss_sp, osa.ss_sp); 708 ss32.ss_onstack = (osa.ss_flags & SS_ONSTACK) != 0; 709 error = copyout(&ss32, SCARG_P32(uap, oss), sizeof(ss32)); 710 } 711 712 return error; 713 } 714
Indexes created Thu Sep 25 02:09:54 GMT 2025