1 /* 2 * Linux syscalls 3 * 4 * Copyright (c) 2003 Fabrice Bellard 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 19 */ 20 #include <stdlib.h> 21 #include <stdio.h> 22 #include <stdarg.h> 23 #include <string.h> 24 #include <elf.h> 25 #include <endian.h> 26 #include <errno.h> 27 #include <unistd.h> 28 #include <fcntl.h> 29 #include <time.h> 30 #include <sys/types.h> 31 #include <sys/ipc.h> 32 #include <sys/msg.h> 33 #include <sys/wait.h> 34 #include <sys/time.h> 35 #include <sys/stat.h> 36 #include <sys/mount.h> 37 #include <sys/prctl.h> 38 #include <sys/resource.h> 39 #include <sys/mman.h> 40 #include <sys/swap.h> 41 #include <signal.h> 42 #include <sched.h> 43 #include <sys/socket.h> 44 #include <sys/uio.h> 45 #include <sys/poll.h> 46 #include <sys/times.h> 47 #include <sys/shm.h> 48 #include <sys/sem.h> 49 #include <sys/statfs.h> 50 #include <utime.h> 51 #include <sys/sysinfo.h> 52 //#include <sys/user.h> 53 #include <netinet/ip.h> 54 #include <netinet/tcp.h> 55 56 #define termios host_termios 57 #define winsize host_winsize 58 #define termio host_termio 59 #define sgttyb host_sgttyb /* same as target */ 60 #define tchars host_tchars /* same as target */ 61 #define ltchars host_ltchars /* same as target */ 62 63 #include <linux/termios.h> 64 #include <linux/unistd.h> 65 #include <linux/utsname.h> 66 #include <linux/cdrom.h> 67 #include <linux/hdreg.h> 68 #include <linux/soundcard.h> 69 #include <linux/dirent.h> 70 #include <linux/kd.h> 71 72 #include "qemu.h" 73 74 //#define DEBUG 75 76 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_SPARC) \ 77 || defined(TARGET_M68K) || defined(TARGET_SH4) 78 /* 16 bit uid wrappers emulation */ 79 #define USE_UID16 80 #endif 81 82 //#include <linux/msdos_fs.h> 83 #define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct dirent [2]) 84 #define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct dirent [2]) 85 86 87 #undef _syscall0 88 #undef _syscall1 89 #undef _syscall2 90 #undef _syscall3 91 #undef _syscall4 92 #undef _syscall5 93 #undef _syscall6 94 95 #define _syscall0(type,name) \ 96 type name (void) \ 97 { \ 98 return syscall(__NR_##name); \ 99 } 100 101 #define _syscall1(type,name,type1,arg1) \ 102 type name (type1 arg1) \ 103 { \ 104 return syscall(__NR_##name, arg1); \ 105 } 106 107 #define _syscall2(type,name,type1,arg1,type2,arg2) \ 108 type name (type1 arg1,type2 arg2) \ 109 { \ 110 return syscall(__NR_##name, arg1, arg2); \ 111 } 112 113 #define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \ 114 type name (type1 arg1,type2 arg2,type3 arg3) \ 115 { \ 116 return syscall(__NR_##name, arg1, arg2, arg3); \ 117 } 118 119 #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \ 120 type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4) \ 121 { \ 122 return syscall(__NR_##name, arg1, arg2, arg3, arg4); \ 123 } 124 125 #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \ 126 type5,arg5) \ 127 type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \ 128 { \ 129 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \ 130 } 131 132 133 #define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \ 134 type5,arg5,type6,arg6) \ 135 type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5,type6 arg6) \ 136 { \ 137 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \ 138 } 139 140 141 #define __NR_sys_uname __NR_uname 142 #define __NR_sys_getcwd1 __NR_getcwd 143 #define __NR_sys_getdents __NR_getdents 144 #define __NR_sys_getdents64 __NR_getdents64 145 #define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo 146 #define __NR_sys_syslog __NR_syslog 147 148 #if defined(__alpha__) || defined (__ia64__) || defined(__x86_64__) 149 #define __NR__llseek __NR_lseek 150 #endif 151 152 #ifdef __NR_gettid 153 _syscall0(int, gettid) 154 #else 155 static int gettid(void) { 156 return -ENOSYS; 157 } 158 #endif 159 _syscall1(int,sys_uname,struct new_utsname *,buf) 160 _syscall2(int,sys_getcwd1,char *,buf,size_t,size) 161 _syscall3(int, sys_getdents, uint, fd, struct dirent *, dirp, uint, count); 162 _syscall3(int, sys_getdents64, uint, fd, struct dirent64 *, dirp, uint, count); 163 _syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo, 164 loff_t *, res, uint, wh); 165 _syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo) 166 _syscall3(int,sys_syslog,int,type,char*,bufp,int,len) 167 #ifdef __NR_exit_group 168 _syscall1(int,exit_group,int,error_code) 169 #endif 170 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address) 171 _syscall1(int,set_tid_address,int *,tidptr) 172 #endif 173 174 extern int personality(int); 175 extern int flock(int, int); 176 extern int setfsuid(int); 177 extern int setfsgid(int); 178 extern int setresuid(uid_t, uid_t, uid_t); 179 extern int getresuid(uid_t *, uid_t *, uid_t *); 180 extern int setresgid(gid_t, gid_t, gid_t); 181 extern int getresgid(gid_t *, gid_t *, gid_t *); 182 extern int setgroups(int, gid_t *); 183 184 /* 185 * This list is the union of errno values overidden in asm-<arch>/errno.h 186 * minus the errnos that are not actually generic to all archs. 187 */ 188 static uint16_t host_to_target_errno_table[1200] = { 189 [EIDRM] = TARGET_EIDRM, 190 [ECHRNG] = TARGET_ECHRNG, 191 [EL2NSYNC] = TARGET_EL2NSYNC, 192 [EL3HLT] = TARGET_EL3HLT, 193 [EL3RST] = TARGET_EL3RST, 194 [ELNRNG] = TARGET_ELNRNG, 195 [EUNATCH] = TARGET_EUNATCH, 196 [ENOCSI] = TARGET_ENOCSI, 197 [EL2HLT] = TARGET_EL2HLT, 198 [EDEADLK] = TARGET_EDEADLK, 199 [ENOLCK] = TARGET_ENOLCK, 200 [EBADE] = TARGET_EBADE, 201 [EBADR] = TARGET_EBADR, 202 [EXFULL] = TARGET_EXFULL, 203 [ENOANO] = TARGET_ENOANO, 204 [EBADRQC] = TARGET_EBADRQC, 205 [EBADSLT] = TARGET_EBADSLT, 206 [EBFONT] = TARGET_EBFONT, 207 [ENOSTR] = TARGET_ENOSTR, 208 [ENODATA] = TARGET_ENODATA, 209 [ETIME] = TARGET_ETIME, 210 [ENOSR] = TARGET_ENOSR, 211 [ENONET] = TARGET_ENONET, 212 [ENOPKG] = TARGET_ENOPKG, 213 [EREMOTE] = TARGET_EREMOTE, 214 [ENOLINK] = TARGET_ENOLINK, 215 [EADV] = TARGET_EADV, 216 [ESRMNT] = TARGET_ESRMNT, 217 [ECOMM] = TARGET_ECOMM, 218 [EPROTO] = TARGET_EPROTO, 219 [EDOTDOT] = TARGET_EDOTDOT, 220 [EMULTIHOP] = TARGET_EMULTIHOP, 221 [EBADMSG] = TARGET_EBADMSG, 222 [ENAMETOOLONG] = TARGET_ENAMETOOLONG, 223 [EOVERFLOW] = TARGET_EOVERFLOW, 224 [ENOTUNIQ] = TARGET_ENOTUNIQ, 225 [EBADFD] = TARGET_EBADFD, 226 [EREMCHG] = TARGET_EREMCHG, 227 [ELIBACC] = TARGET_ELIBACC, 228 [ELIBBAD] = TARGET_ELIBBAD, 229 [ELIBSCN] = TARGET_ELIBSCN, 230 [ELIBMAX] = TARGET_ELIBMAX, 231 [ELIBEXEC] = TARGET_ELIBEXEC, 232 [EILSEQ] = TARGET_EILSEQ, 233 [ENOSYS] = TARGET_ENOSYS, 234 [ELOOP] = TARGET_ELOOP, 235 [ERESTART] = TARGET_ERESTART, 236 [ESTRPIPE] = TARGET_ESTRPIPE, 237 [ENOTEMPTY] = TARGET_ENOTEMPTY, 238 [EUSERS] = TARGET_EUSERS, 239 [ENOTSOCK] = TARGET_ENOTSOCK, 240 [EDESTADDRREQ] = TARGET_EDESTADDRREQ, 241 [EMSGSIZE] = TARGET_EMSGSIZE, 242 [EPROTOTYPE] = TARGET_EPROTOTYPE, 243 [ENOPROTOOPT] = TARGET_ENOPROTOOPT, 244 [EPROTONOSUPPORT] = TARGET_EPROTONOSUPPORT, 245 [ESOCKTNOSUPPORT] = TARGET_ESOCKTNOSUPPORT, 246 [EOPNOTSUPP] = TARGET_EOPNOTSUPP, 247 [EPFNOSUPPORT] = TARGET_EPFNOSUPPORT, 248 [EAFNOSUPPORT] = TARGET_EAFNOSUPPORT, 249 [EADDRINUSE] = TARGET_EADDRINUSE, 250 [EADDRNOTAVAIL] = TARGET_EADDRNOTAVAIL, 251 [ENETDOWN] = TARGET_ENETDOWN, 252 [ENETUNREACH] = TARGET_ENETUNREACH, 253 [ENETRESET] = TARGET_ENETRESET, 254 [ECONNABORTED] = TARGET_ECONNABORTED, 255 [ECONNRESET] = TARGET_ECONNRESET, 256 [ENOBUFS] = TARGET_ENOBUFS, 257 [EISCONN] = TARGET_EISCONN, 258 [ENOTCONN] = TARGET_ENOTCONN, 259 [EUCLEAN] = TARGET_EUCLEAN, 260 [ENOTNAM] = TARGET_ENOTNAM, 261 [ENAVAIL] = TARGET_ENAVAIL, 262 [EISNAM] = TARGET_EISNAM, 263 [EREMOTEIO] = TARGET_EREMOTEIO, 264 [ESHUTDOWN] = TARGET_ESHUTDOWN, 265 [ETOOMANYREFS] = TARGET_ETOOMANYREFS, 266 [ETIMEDOUT] = TARGET_ETIMEDOUT, 267 [ECONNREFUSED] = TARGET_ECONNREFUSED, 268 [EHOSTDOWN] = TARGET_EHOSTDOWN, 269 [EHOSTUNREACH] = TARGET_EHOSTUNREACH, 270 [EALREADY] = TARGET_EALREADY, 271 [EINPROGRESS] = TARGET_EINPROGRESS, 272 [ESTALE] = TARGET_ESTALE, 273 [ECANCELED] = TARGET_ECANCELED, 274 [ENOMEDIUM] = TARGET_ENOMEDIUM, 275 [EMEDIUMTYPE] = TARGET_EMEDIUMTYPE, 276 [ENOKEY] = TARGET_ENOKEY, 277 [EKEYEXPIRED] = TARGET_EKEYEXPIRED, 278 [EKEYREVOKED] = TARGET_EKEYREVOKED, 279 [EKEYREJECTED] = TARGET_EKEYREJECTED, 280 [EOWNERDEAD] = TARGET_EOWNERDEAD, 281 [ENOTRECOVERABLE] = TARGET_ENOTRECOVERABLE, 282 }; 283 284 static inline int host_to_target_errno(int err) 285 { 286 if(host_to_target_errno_table[err]) 287 return host_to_target_errno_table[err]; 288 return err; 289 } 290 291 static inline long get_errno(long ret) 292 { 293 if (ret == -1) 294 return -host_to_target_errno(errno); 295 else 296 return ret; 297 } 298 299 static inline int is_error(long ret) 300 { 301 return (unsigned long)ret >= (unsigned long)(-4096); 302 } 303 304 static target_ulong target_brk; 305 static target_ulong target_original_brk; 306 307 void target_set_brk(target_ulong new_brk) 308 { 309 target_original_brk = target_brk = new_brk; 310 } 311 312 long do_brk(target_ulong new_brk) 313 { 314 target_ulong brk_page; 315 long mapped_addr; 316 int new_alloc_size; 317 318 if (!new_brk) 319 return target_brk; 320 if (new_brk < target_original_brk) 321 return -ENOMEM; 322 323 brk_page = HOST_PAGE_ALIGN(target_brk); 324 325 /* If the new brk is less than this, set it and we're done... */ 326 if (new_brk < brk_page) { 327 target_brk = new_brk; 328 return target_brk; 329 } 330 331 /* We need to allocate more memory after the brk... */ 332 new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1); 333 mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size, 334 PROT_READ|PROT_WRITE, 335 MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0)); 336 if (is_error(mapped_addr)) { 337 return mapped_addr; 338 } else { 339 target_brk = new_brk; 340 return target_brk; 341 } 342 } 343 344 static inline fd_set *target_to_host_fds(fd_set *fds, 345 target_long *target_fds, int n) 346 { 347 #if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN) 348 return (fd_set *)target_fds; 349 #else 350 int i, b; 351 if (target_fds) { 352 FD_ZERO(fds); 353 for(i = 0;i < n; i++) { 354 b = (tswapl(target_fds[i / TARGET_LONG_BITS]) >> 355 (i & (TARGET_LONG_BITS - 1))) & 1; 356 if (b) 357 FD_SET(i, fds); 358 } 359 return fds; 360 } else { 361 return NULL; 362 } 363 #endif 364 } 365 366 static inline void host_to_target_fds(target_long *target_fds, 367 fd_set *fds, int n) 368 { 369 #if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN) 370 /* nothing to do */ 371 #else 372 int i, nw, j, k; 373 target_long v; 374 375 if (target_fds) { 376 nw = (n + TARGET_LONG_BITS - 1) / TARGET_LONG_BITS; 377 k = 0; 378 for(i = 0;i < nw; i++) { 379 v = 0; 380 for(j = 0; j < TARGET_LONG_BITS; j++) { 381 v |= ((FD_ISSET(k, fds) != 0) << j); 382 k++; 383 } 384 target_fds[i] = tswapl(v); 385 } 386 } 387 #endif 388 } 389 390 #if defined(__alpha__) 391 #define HOST_HZ 1024 392 #else 393 #define HOST_HZ 100 394 #endif 395 396 static inline long host_to_target_clock_t(long ticks) 397 { 398 #if HOST_HZ == TARGET_HZ 399 return ticks; 400 #else 401 return ((int64_t)ticks * TARGET_HZ) / HOST_HZ; 402 #endif 403 } 404 405 static inline void host_to_target_rusage(target_ulong target_addr, 406 const struct rusage *rusage) 407 { 408 struct target_rusage *target_rusage; 409 410 lock_user_struct(target_rusage, target_addr, 0); 411 target_rusage->ru_utime.tv_sec = tswapl(rusage->ru_utime.tv_sec); 412 target_rusage->ru_utime.tv_usec = tswapl(rusage->ru_utime.tv_usec); 413 target_rusage->ru_stime.tv_sec = tswapl(rusage->ru_stime.tv_sec); 414 target_rusage->ru_stime.tv_usec = tswapl(rusage->ru_stime.tv_usec); 415 target_rusage->ru_maxrss = tswapl(rusage->ru_maxrss); 416 target_rusage->ru_ixrss = tswapl(rusage->ru_ixrss); 417 target_rusage->ru_idrss = tswapl(rusage->ru_idrss); 418 target_rusage->ru_isrss = tswapl(rusage->ru_isrss); 419 target_rusage->ru_minflt = tswapl(rusage->ru_minflt); 420 target_rusage->ru_majflt = tswapl(rusage->ru_majflt); 421 target_rusage->ru_nswap = tswapl(rusage->ru_nswap); 422 target_rusage->ru_inblock = tswapl(rusage->ru_inblock); 423 target_rusage->ru_oublock = tswapl(rusage->ru_oublock); 424 target_rusage->ru_msgsnd = tswapl(rusage->ru_msgsnd); 425 target_rusage->ru_msgrcv = tswapl(rusage->ru_msgrcv); 426 target_rusage->ru_nsignals = tswapl(rusage->ru_nsignals); 427 target_rusage->ru_nvcsw = tswapl(rusage->ru_nvcsw); 428 target_rusage->ru_nivcsw = tswapl(rusage->ru_nivcsw); 429 unlock_user_struct(target_rusage, target_addr, 1); 430 } 431 432 static inline void target_to_host_timeval(struct timeval *tv, 433 target_ulong target_addr) 434 { 435 struct target_timeval *target_tv; 436 437 lock_user_struct(target_tv, target_addr, 1); 438 tv->tv_sec = tswapl(target_tv->tv_sec); 439 tv->tv_usec = tswapl(target_tv->tv_usec); 440 unlock_user_struct(target_tv, target_addr, 0); 441 } 442 443 static inline void host_to_target_timeval(target_ulong target_addr, 444 const struct timeval *tv) 445 { 446 struct target_timeval *target_tv; 447 448 lock_user_struct(target_tv, target_addr, 0); 449 target_tv->tv_sec = tswapl(tv->tv_sec); 450 target_tv->tv_usec = tswapl(tv->tv_usec); 451 unlock_user_struct(target_tv, target_addr, 1); 452 } 453 454 455 static long do_select(long n, 456 target_ulong rfd_p, target_ulong wfd_p, 457 target_ulong efd_p, target_ulong target_tv) 458 { 459 fd_set rfds, wfds, efds; 460 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr; 461 target_long *target_rfds, *target_wfds, *target_efds; 462 struct timeval tv, *tv_ptr; 463 long ret; 464 int ok; 465 466 if (rfd_p) { 467 target_rfds = lock_user(rfd_p, sizeof(target_long) * n, 1); 468 rfds_ptr = target_to_host_fds(&rfds, target_rfds, n); 469 } else { 470 target_rfds = NULL; 471 rfds_ptr = NULL; 472 } 473 if (wfd_p) { 474 target_wfds = lock_user(wfd_p, sizeof(target_long) * n, 1); 475 wfds_ptr = target_to_host_fds(&wfds, target_wfds, n); 476 } else { 477 target_wfds = NULL; 478 wfds_ptr = NULL; 479 } 480 if (efd_p) { 481 target_efds = lock_user(efd_p, sizeof(target_long) * n, 1); 482 efds_ptr = target_to_host_fds(&efds, target_efds, n); 483 } else { 484 target_efds = NULL; 485 efds_ptr = NULL; 486 } 487 488 if (target_tv) { 489 target_to_host_timeval(&tv, target_tv); 490 tv_ptr = &tv; 491 } else { 492 tv_ptr = NULL; 493 } 494 ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr)); 495 ok = !is_error(ret); 496 497 if (ok) { 498 host_to_target_fds(target_rfds, rfds_ptr, n); 499 host_to_target_fds(target_wfds, wfds_ptr, n); 500 host_to_target_fds(target_efds, efds_ptr, n); 501 502 if (target_tv) { 503 host_to_target_timeval(target_tv, &tv); 504 } 505 } 506 if (target_rfds) 507 unlock_user(target_rfds, rfd_p, ok ? sizeof(target_long) * n : 0); 508 if (target_wfds) 509 unlock_user(target_wfds, wfd_p, ok ? sizeof(target_long) * n : 0); 510 if (target_efds) 511 unlock_user(target_efds, efd_p, ok ? sizeof(target_long) * n : 0); 512 513 return ret; 514 } 515 516 static inline void target_to_host_sockaddr(struct sockaddr *addr, 517 target_ulong target_addr, 518 socklen_t len) 519 { 520 struct target_sockaddr *target_saddr; 521 522 target_saddr = lock_user(target_addr, len, 1); 523 memcpy(addr, target_saddr, len); 524 addr->sa_family = tswap16(target_saddr->sa_family); 525 unlock_user(target_saddr, target_addr, 0); 526 } 527 528 static inline void host_to_target_sockaddr(target_ulong target_addr, 529 struct sockaddr *addr, 530 socklen_t len) 531 { 532 struct target_sockaddr *target_saddr; 533 534 target_saddr = lock_user(target_addr, len, 0); 535 memcpy(target_saddr, addr, len); 536 target_saddr->sa_family = tswap16(addr->sa_family); 537 unlock_user(target_saddr, target_addr, len); 538 } 539 540 /* ??? Should this also swap msgh->name? */ 541 static inline void target_to_host_cmsg(struct msghdr *msgh, 542 struct target_msghdr *target_msgh) 543 { 544 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh); 545 struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh); 546 socklen_t space = 0; 547 548 while (cmsg && target_cmsg) { 549 void *data = CMSG_DATA(cmsg); 550 void *target_data = TARGET_CMSG_DATA(target_cmsg); 551 552 int len = tswapl(target_cmsg->cmsg_len) 553 - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr)); 554 555 space += CMSG_SPACE(len); 556 if (space > msgh->msg_controllen) { 557 space -= CMSG_SPACE(len); 558 gemu_log("Host cmsg overflow\n"); 559 break; 560 } 561 562 cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level); 563 cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type); 564 cmsg->cmsg_len = CMSG_LEN(len); 565 566 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) { 567 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type); 568 memcpy(data, target_data, len); 569 } else { 570 int *fd = (int *)data; 571 int *target_fd = (int *)target_data; 572 int i, numfds = len / sizeof(int); 573 574 for (i = 0; i < numfds; i++) 575 fd[i] = tswap32(target_fd[i]); 576 } 577 578 cmsg = CMSG_NXTHDR(msgh, cmsg); 579 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg); 580 } 581 582 msgh->msg_controllen = space; 583 } 584 585 /* ??? Should this also swap msgh->name? */ 586 static inline void host_to_target_cmsg(struct target_msghdr *target_msgh, 587 struct msghdr *msgh) 588 { 589 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh); 590 struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh); 591 socklen_t space = 0; 592 593 while (cmsg && target_cmsg) { 594 void *data = CMSG_DATA(cmsg); 595 void *target_data = TARGET_CMSG_DATA(target_cmsg); 596 597 int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr)); 598 599 space += TARGET_CMSG_SPACE(len); 600 if (space > tswapl(target_msgh->msg_controllen)) { 601 space -= TARGET_CMSG_SPACE(len); 602 gemu_log("Target cmsg overflow\n"); 603 break; 604 } 605 606 target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level); 607 target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type); 608 target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len)); 609 610 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) { 611 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type); 612 memcpy(target_data, data, len); 613 } else { 614 int *fd = (int *)data; 615 int *target_fd = (int *)target_data; 616 int i, numfds = len / sizeof(int); 617 618 for (i = 0; i < numfds; i++) 619 target_fd[i] = tswap32(fd[i]); 620 } 621 622 cmsg = CMSG_NXTHDR(msgh, cmsg); 623 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg); 624 } 625 626 msgh->msg_controllen = tswapl(space); 627 } 628 629 static long do_setsockopt(int sockfd, int level, int optname, 630 target_ulong optval, socklen_t optlen) 631 { 632 int val, ret; 633 634 switch(level) { 635 case SOL_TCP: 636 /* TCP options all take an 'int' value. */ 637 if (optlen < sizeof(uint32_t)) 638 return -EINVAL; 639 640 val = tget32(optval); 641 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val))); 642 break; 643 case SOL_IP: 644 switch(optname) { 645 case IP_TOS: 646 case IP_TTL: 647 case IP_HDRINCL: 648 case IP_ROUTER_ALERT: 649 case IP_RECVOPTS: 650 case IP_RETOPTS: 651 case IP_PKTINFO: 652 case IP_MTU_DISCOVER: 653 case IP_RECVERR: 654 case IP_RECVTOS: 655 #ifdef IP_FREEBIND 656 case IP_FREEBIND: 657 #endif 658 case IP_MULTICAST_TTL: 659 case IP_MULTICAST_LOOP: 660 val = 0; 661 if (optlen >= sizeof(uint32_t)) { 662 val = tget32(optval); 663 } else if (optlen >= 1) { 664 val = tget8(optval); 665 } 666 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val))); 667 break; 668 default: 669 goto unimplemented; 670 } 671 break; 672 case TARGET_SOL_SOCKET: 673 switch (optname) { 674 /* Options with 'int' argument. */ 675 case TARGET_SO_DEBUG: 676 optname = SO_DEBUG; 677 break; 678 case TARGET_SO_REUSEADDR: 679 optname = SO_REUSEADDR; 680 break; 681 case TARGET_SO_TYPE: 682 optname = SO_TYPE; 683 break; 684 case TARGET_SO_ERROR: 685 optname = SO_ERROR; 686 break; 687 case TARGET_SO_DONTROUTE: 688 optname = SO_DONTROUTE; 689 break; 690 case TARGET_SO_BROADCAST: 691 optname = SO_BROADCAST; 692 break; 693 case TARGET_SO_SNDBUF: 694 optname = SO_SNDBUF; 695 break; 696 case TARGET_SO_RCVBUF: 697 optname = SO_RCVBUF; 698 break; 699 case TARGET_SO_KEEPALIVE: 700 optname = SO_KEEPALIVE; 701 break; 702 case TARGET_SO_OOBINLINE: 703 optname = SO_OOBINLINE; 704 break; 705 case TARGET_SO_NO_CHECK: 706 optname = SO_NO_CHECK; 707 break; 708 case TARGET_SO_PRIORITY: 709 optname = SO_PRIORITY; 710 break; 711 #ifdef SO_BSDCOMPAT 712 case TARGET_SO_BSDCOMPAT: 713 optname = SO_BSDCOMPAT; 714 break; 715 #endif 716 case TARGET_SO_PASSCRED: 717 optname = SO_PASSCRED; 718 break; 719 case TARGET_SO_TIMESTAMP: 720 optname = SO_TIMESTAMP; 721 break; 722 case TARGET_SO_RCVLOWAT: 723 optname = SO_RCVLOWAT; 724 break; 725 case TARGET_SO_RCVTIMEO: 726 optname = SO_RCVTIMEO; 727 break; 728 case TARGET_SO_SNDTIMEO: 729 optname = SO_SNDTIMEO; 730 break; 731 break; 732 default: 733 goto unimplemented; 734 } 735 if (optlen < sizeof(uint32_t)) 736 return -EINVAL; 737 738 val = tget32(optval); 739 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val))); 740 break; 741 default: 742 unimplemented: 743 gemu_log("Unsupported setsockopt level=%d optname=%d \n", level, optname); 744 ret = -ENOSYS; 745 } 746 return ret; 747 } 748 749 static long do_getsockopt(int sockfd, int level, int optname, 750 target_ulong optval, target_ulong optlen) 751 { 752 int len, lv, val, ret; 753 754 switch(level) { 755 case TARGET_SOL_SOCKET: 756 level = SOL_SOCKET; 757 switch (optname) { 758 case TARGET_SO_LINGER: 759 case TARGET_SO_RCVTIMEO: 760 case TARGET_SO_SNDTIMEO: 761 case TARGET_SO_PEERCRED: 762 case TARGET_SO_PEERNAME: 763 /* These don't just return a single integer */ 764 goto unimplemented; 765 default: 766 goto int_case; 767 } 768 break; 769 case SOL_TCP: 770 /* TCP options all take an 'int' value. */ 771 int_case: 772 len = tget32(optlen); 773 if (len < 0) 774 return -EINVAL; 775 lv = sizeof(int); 776 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv)); 777 if (ret < 0) 778 return ret; 779 val = tswap32(val); 780 if (len > lv) 781 len = lv; 782 if (len == 4) 783 tput32(optval, val); 784 else 785 tput8(optval, val); 786 tput32(optlen, len); 787 break; 788 case SOL_IP: 789 switch(optname) { 790 case IP_TOS: 791 case IP_TTL: 792 case IP_HDRINCL: 793 case IP_ROUTER_ALERT: 794 case IP_RECVOPTS: 795 case IP_RETOPTS: 796 case IP_PKTINFO: 797 case IP_MTU_DISCOVER: 798 case IP_RECVERR: 799 case IP_RECVTOS: 800 #ifdef IP_FREEBIND 801 case IP_FREEBIND: 802 #endif 803 case IP_MULTICAST_TTL: 804 case IP_MULTICAST_LOOP: 805 len = tget32(optlen); 806 if (len < 0) 807 return -EINVAL; 808 lv = sizeof(int); 809 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv)); 810 if (ret < 0) 811 return ret; 812 if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) { 813 len = 1; 814 tput32(optlen, len); 815 tput8(optval, val); 816 } else { 817 if (len > sizeof(int)) 818 len = sizeof(int); 819 tput32(optlen, len); 820 tput32(optval, val); 821 } 822 break; 823 default: 824 goto unimplemented; 825 } 826 break; 827 default: 828 unimplemented: 829 gemu_log("getsockopt level=%d optname=%d not yet supported\n", 830 level, optname); 831 ret = -ENOSYS; 832 break; 833 } 834 return ret; 835 } 836 837 static void lock_iovec(struct iovec *vec, target_ulong target_addr, 838 int count, int copy) 839 { 840 struct target_iovec *target_vec; 841 target_ulong base; 842 int i; 843 844 target_vec = lock_user(target_addr, count * sizeof(struct target_iovec), 1); 845 for(i = 0;i < count; i++) { 846 base = tswapl(target_vec[i].iov_base); 847 vec[i].iov_len = tswapl(target_vec[i].iov_len); 848 vec[i].iov_base = lock_user(base, vec[i].iov_len, copy); 849 } 850 unlock_user (target_vec, target_addr, 0); 851 } 852 853 static void unlock_iovec(struct iovec *vec, target_ulong target_addr, 854 int count, int copy) 855 { 856 struct target_iovec *target_vec; 857 target_ulong base; 858 int i; 859 860 target_vec = lock_user(target_addr, count * sizeof(struct target_iovec), 1); 861 for(i = 0;i < count; i++) { 862 base = tswapl(target_vec[i].iov_base); 863 unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0); 864 } 865 unlock_user (target_vec, target_addr, 0); 866 } 867 868 static long do_socket(int domain, int type, int protocol) 869 { 870 #if defined(TARGET_MIPS) 871 switch(type) { 872 case TARGET_SOCK_DGRAM: 873 type = SOCK_DGRAM; 874 break; 875 case TARGET_SOCK_STREAM: 876 type = SOCK_STREAM; 877 break; 878 case TARGET_SOCK_RAW: 879 type = SOCK_RAW; 880 break; 881 case TARGET_SOCK_RDM: 882 type = SOCK_RDM; 883 break; 884 case TARGET_SOCK_SEQPACKET: 885 type = SOCK_SEQPACKET; 886 break; 887 case TARGET_SOCK_PACKET: 888 type = SOCK_PACKET; 889 break; 890 } 891 #endif 892 return get_errno(socket(domain, type, protocol)); 893 } 894 895 static long do_bind(int sockfd, target_ulong target_addr, 896 socklen_t addrlen) 897 { 898 void *addr = alloca(addrlen); 899 900 target_to_host_sockaddr(addr, target_addr, addrlen); 901 return get_errno(bind(sockfd, addr, addrlen)); 902 } 903 904 static long do_connect(int sockfd, target_ulong target_addr, 905 socklen_t addrlen) 906 { 907 void *addr = alloca(addrlen); 908 909 target_to_host_sockaddr(addr, target_addr, addrlen); 910 return get_errno(connect(sockfd, addr, addrlen)); 911 } 912 913 static long do_sendrecvmsg(int fd, target_ulong target_msg, 914 int flags, int send) 915 { 916 long ret; 917 struct target_msghdr *msgp; 918 struct msghdr msg; 919 int count; 920 struct iovec *vec; 921 target_ulong target_vec; 922 923 lock_user_struct(msgp, target_msg, 1); 924 if (msgp->msg_name) { 925 msg.msg_namelen = tswap32(msgp->msg_namelen); 926 msg.msg_name = alloca(msg.msg_namelen); 927 target_to_host_sockaddr(msg.msg_name, tswapl(msgp->msg_name), 928 msg.msg_namelen); 929 } else { 930 msg.msg_name = NULL; 931 msg.msg_namelen = 0; 932 } 933 msg.msg_controllen = 2 * tswapl(msgp->msg_controllen); 934 msg.msg_control = alloca(msg.msg_controllen); 935 msg.msg_flags = tswap32(msgp->msg_flags); 936 937 count = tswapl(msgp->msg_iovlen); 938 vec = alloca(count * sizeof(struct iovec)); 939 target_vec = tswapl(msgp->msg_iov); 940 lock_iovec(vec, target_vec, count, send); 941 msg.msg_iovlen = count; 942 msg.msg_iov = vec; 943 944 if (send) { 945 target_to_host_cmsg(&msg, msgp); 946 ret = get_errno(sendmsg(fd, &msg, flags)); 947 } else { 948 ret = get_errno(recvmsg(fd, &msg, flags)); 949 if (!is_error(ret)) 950 host_to_target_cmsg(msgp, &msg); 951 } 952 unlock_iovec(vec, target_vec, count, !send); 953 return ret; 954 } 955 956 static long do_accept(int fd, target_ulong target_addr, 957 target_ulong target_addrlen) 958 { 959 socklen_t addrlen = tget32(target_addrlen); 960 void *addr = alloca(addrlen); 961 long ret; 962 963 ret = get_errno(accept(fd, addr, &addrlen)); 964 if (!is_error(ret)) { 965 host_to_target_sockaddr(target_addr, addr, addrlen); 966 tput32(target_addrlen, addrlen); 967 } 968 return ret; 969 } 970 971 static long do_getpeername(int fd, target_ulong target_addr, 972 target_ulong target_addrlen) 973 { 974 socklen_t addrlen = tget32(target_addrlen); 975 void *addr = alloca(addrlen); 976 long ret; 977 978 ret = get_errno(getpeername(fd, addr, &addrlen)); 979 if (!is_error(ret)) { 980 host_to_target_sockaddr(target_addr, addr, addrlen); 981 tput32(target_addrlen, addrlen); 982 } 983 return ret; 984 } 985 986 static long do_getsockname(int fd, target_ulong target_addr, 987 target_ulong target_addrlen) 988 { 989 socklen_t addrlen = tget32(target_addrlen); 990 void *addr = alloca(addrlen); 991 long ret; 992 993 ret = get_errno(getsockname(fd, addr, &addrlen)); 994 if (!is_error(ret)) { 995 host_to_target_sockaddr(target_addr, addr, addrlen); 996 tput32(target_addrlen, addrlen); 997 } 998 return ret; 999 } 1000 1001 static long do_socketpair(int domain, int type, int protocol, 1002 target_ulong target_tab) 1003 { 1004 int tab[2]; 1005 long ret; 1006 1007 ret = get_errno(socketpair(domain, type, protocol, tab)); 1008 if (!is_error(ret)) { 1009 tput32(target_tab, tab[0]); 1010 tput32(target_tab + 4, tab[1]); 1011 } 1012 return ret; 1013 } 1014 1015 static long do_sendto(int fd, target_ulong msg, size_t len, int flags, 1016 target_ulong target_addr, socklen_t addrlen) 1017 { 1018 void *addr; 1019 void *host_msg; 1020 long ret; 1021 1022 host_msg = lock_user(msg, len, 1); 1023 if (target_addr) { 1024 addr = alloca(addrlen); 1025 target_to_host_sockaddr(addr, target_addr, addrlen); 1026 ret = get_errno(sendto(fd, host_msg, len, flags, addr, addrlen)); 1027 } else { 1028 ret = get_errno(send(fd, host_msg, len, flags)); 1029 } 1030 unlock_user(host_msg, msg, 0); 1031 return ret; 1032 } 1033 1034 static long do_recvfrom(int fd, target_ulong msg, size_t len, int flags, 1035 target_ulong target_addr, target_ulong target_addrlen) 1036 { 1037 socklen_t addrlen; 1038 void *addr; 1039 void *host_msg; 1040 long ret; 1041 1042 host_msg = lock_user(msg, len, 0); 1043 if (target_addr) { 1044 addrlen = tget32(target_addrlen); 1045 addr = alloca(addrlen); 1046 ret = get_errno(recvfrom(fd, host_msg, len, flags, addr, &addrlen)); 1047 } else { 1048 addr = NULL; /* To keep compiler quiet. */ 1049 ret = get_errno(recv(fd, host_msg, len, flags)); 1050 } 1051 if (!is_error(ret)) { 1052 if (target_addr) { 1053 host_to_target_sockaddr(target_addr, addr, addrlen); 1054 tput32(target_addrlen, addrlen); 1055 } 1056 unlock_user(host_msg, msg, len); 1057 } else { 1058 unlock_user(host_msg, msg, 0); 1059 } 1060 return ret; 1061 } 1062 1063 static long do_socketcall(int num, target_ulong vptr) 1064 { 1065 long ret; 1066 const int n = sizeof(target_ulong); 1067 1068 switch(num) { 1069 case SOCKOP_socket: 1070 { 1071 int domain = tgetl(vptr); 1072 int type = tgetl(vptr + n); 1073 int protocol = tgetl(vptr + 2 * n); 1074 ret = do_socket(domain, type, protocol); 1075 } 1076 break; 1077 case SOCKOP_bind: 1078 { 1079 int sockfd = tgetl(vptr); 1080 target_ulong target_addr = tgetl(vptr + n); 1081 socklen_t addrlen = tgetl(vptr + 2 * n); 1082 ret = do_bind(sockfd, target_addr, addrlen); 1083 } 1084 break; 1085 case SOCKOP_connect: 1086 { 1087 int sockfd = tgetl(vptr); 1088 target_ulong target_addr = tgetl(vptr + n); 1089 socklen_t addrlen = tgetl(vptr + 2 * n); 1090 ret = do_connect(sockfd, target_addr, addrlen); 1091 } 1092 break; 1093 case SOCKOP_listen: 1094 { 1095 int sockfd = tgetl(vptr); 1096 int backlog = tgetl(vptr + n); 1097 ret = get_errno(listen(sockfd, backlog)); 1098 } 1099 break; 1100 case SOCKOP_accept: 1101 { 1102 int sockfd = tgetl(vptr); 1103 target_ulong target_addr = tgetl(vptr + n); 1104 target_ulong target_addrlen = tgetl(vptr + 2 * n); 1105 ret = do_accept(sockfd, target_addr, target_addrlen); 1106 } 1107 break; 1108 case SOCKOP_getsockname: 1109 { 1110 int sockfd = tgetl(vptr); 1111 target_ulong target_addr = tgetl(vptr + n); 1112 target_ulong target_addrlen = tgetl(vptr + 2 * n); 1113 ret = do_getsockname(sockfd, target_addr, target_addrlen); 1114 } 1115 break; 1116 case SOCKOP_getpeername: 1117 { 1118 int sockfd = tgetl(vptr); 1119 target_ulong target_addr = tgetl(vptr + n); 1120 target_ulong target_addrlen = tgetl(vptr + 2 * n); 1121 ret = do_getpeername(sockfd, target_addr, target_addrlen); 1122 } 1123 break; 1124 case SOCKOP_socketpair: 1125 { 1126 int domain = tgetl(vptr); 1127 int type = tgetl(vptr + n); 1128 int protocol = tgetl(vptr + 2 * n); 1129 target_ulong tab = tgetl(vptr + 3 * n); 1130 ret = do_socketpair(domain, type, protocol, tab); 1131 } 1132 break; 1133 case SOCKOP_send: 1134 { 1135 int sockfd = tgetl(vptr); 1136 target_ulong msg = tgetl(vptr + n); 1137 size_t len = tgetl(vptr + 2 * n); 1138 int flags = tgetl(vptr + 3 * n); 1139 ret = do_sendto(sockfd, msg, len, flags, 0, 0); 1140 } 1141 break; 1142 case SOCKOP_recv: 1143 { 1144 int sockfd = tgetl(vptr); 1145 target_ulong msg = tgetl(vptr + n); 1146 size_t len = tgetl(vptr + 2 * n); 1147 int flags = tgetl(vptr + 3 * n); 1148 ret = do_recvfrom(sockfd, msg, len, flags, 0, 0); 1149 } 1150 break; 1151 case SOCKOP_sendto: 1152 { 1153 int sockfd = tgetl(vptr); 1154 target_ulong msg = tgetl(vptr + n); 1155 size_t len = tgetl(vptr + 2 * n); 1156 int flags = tgetl(vptr + 3 * n); 1157 target_ulong addr = tgetl(vptr + 4 * n); 1158 socklen_t addrlen = tgetl(vptr + 5 * n); 1159 ret = do_sendto(sockfd, msg, len, flags, addr, addrlen); 1160 } 1161 break; 1162 case SOCKOP_recvfrom: 1163 { 1164 int sockfd = tgetl(vptr); 1165 target_ulong msg = tgetl(vptr + n); 1166 size_t len = tgetl(vptr + 2 * n); 1167 int flags = tgetl(vptr + 3 * n); 1168 target_ulong addr = tgetl(vptr + 4 * n); 1169 target_ulong addrlen = tgetl(vptr + 5 * n); 1170 ret = do_recvfrom(sockfd, msg, len, flags, addr, addrlen); 1171 } 1172 break; 1173 case SOCKOP_shutdown: 1174 { 1175 int sockfd = tgetl(vptr); 1176 int how = tgetl(vptr + n); 1177 1178 ret = get_errno(shutdown(sockfd, how)); 1179 } 1180 break; 1181 case SOCKOP_sendmsg: 1182 case SOCKOP_recvmsg: 1183 { 1184 int fd; 1185 target_ulong target_msg; 1186 int flags; 1187 1188 fd = tgetl(vptr); 1189 target_msg = tgetl(vptr + n); 1190 flags = tgetl(vptr + 2 * n); 1191 1192 ret = do_sendrecvmsg(fd, target_msg, flags, 1193 (num == SOCKOP_sendmsg)); 1194 } 1195 break; 1196 case SOCKOP_setsockopt: 1197 { 1198 int sockfd = tgetl(vptr); 1199 int level = tgetl(vptr + n); 1200 int optname = tgetl(vptr + 2 * n); 1201 target_ulong optval = tgetl(vptr + 3 * n); 1202 socklen_t optlen = tgetl(vptr + 4 * n); 1203 1204 ret = do_setsockopt(sockfd, level, optname, optval, optlen); 1205 } 1206 break; 1207 case SOCKOP_getsockopt: 1208 { 1209 int sockfd = tgetl(vptr); 1210 int level = tgetl(vptr + n); 1211 int optname = tgetl(vptr + 2 * n); 1212 target_ulong optval = tgetl(vptr + 3 * n); 1213 target_ulong poptlen = tgetl(vptr + 4 * n); 1214 1215 ret = do_getsockopt(sockfd, level, optname, optval, poptlen); 1216 } 1217 break; 1218 default: 1219 gemu_log("Unsupported socketcall: %d\n", num); 1220 ret = -ENOSYS; 1221 break; 1222 } 1223 return ret; 1224 } 1225 1226 #define N_SHM_REGIONS 32 1227 1228 static struct shm_region { 1229 uint32_t start; 1230 uint32_t size; 1231 } shm_regions[N_SHM_REGIONS]; 1232 1233 struct target_ipc_perm 1234 { 1235 target_long __key; 1236 target_ulong uid; 1237 target_ulong gid; 1238 target_ulong cuid; 1239 target_ulong cgid; 1240 unsigned short int mode; 1241 unsigned short int __pad1; 1242 unsigned short int __seq; 1243 unsigned short int __pad2; 1244 target_ulong __unused1; 1245 target_ulong __unused2; 1246 }; 1247 1248 struct target_semid_ds 1249 { 1250 struct target_ipc_perm sem_perm; 1251 target_ulong sem_otime; 1252 target_ulong __unused1; 1253 target_ulong sem_ctime; 1254 target_ulong __unused2; 1255 target_ulong sem_nsems; 1256 target_ulong __unused3; 1257 target_ulong __unused4; 1258 }; 1259 1260 static inline void target_to_host_ipc_perm(struct ipc_perm *host_ip, 1261 target_ulong target_addr) 1262 { 1263 struct target_ipc_perm *target_ip; 1264 struct target_semid_ds *target_sd; 1265 1266 lock_user_struct(target_sd, target_addr, 1); 1267 target_ip=&(target_sd->sem_perm); 1268 host_ip->__key = tswapl(target_ip->__key); 1269 host_ip->uid = tswapl(target_ip->uid); 1270 host_ip->gid = tswapl(target_ip->gid); 1271 host_ip->cuid = tswapl(target_ip->cuid); 1272 host_ip->cgid = tswapl(target_ip->cgid); 1273 host_ip->mode = tswapl(target_ip->mode); 1274 unlock_user_struct(target_sd, target_addr, 0); 1275 } 1276 1277 static inline void host_to_target_ipc_perm(target_ulong target_addr, 1278 struct ipc_perm *host_ip) 1279 { 1280 struct target_ipc_perm *target_ip; 1281 struct target_semid_ds *target_sd; 1282 1283 lock_user_struct(target_sd, target_addr, 0); 1284 target_ip = &(target_sd->sem_perm); 1285 target_ip->__key = tswapl(host_ip->__key); 1286 target_ip->uid = tswapl(host_ip->uid); 1287 target_ip->gid = tswapl(host_ip->gid); 1288 target_ip->cuid = tswapl(host_ip->cuid); 1289 target_ip->cgid = tswapl(host_ip->cgid); 1290 target_ip->mode = tswapl(host_ip->mode); 1291 unlock_user_struct(target_sd, target_addr, 1); 1292 } 1293 1294 static inline void target_to_host_semid_ds(struct semid_ds *host_sd, 1295 target_ulong target_addr) 1296 { 1297 struct target_semid_ds *target_sd; 1298 1299 lock_user_struct(target_sd, target_addr, 1); 1300 target_to_host_ipc_perm(&(host_sd->sem_perm),target_addr); 1301 host_sd->sem_nsems = tswapl(target_sd->sem_nsems); 1302 host_sd->sem_otime = tswapl(target_sd->sem_otime); 1303 host_sd->sem_ctime = tswapl(target_sd->sem_ctime); 1304 unlock_user_struct(target_sd, target_addr, 0); 1305 } 1306 1307 static inline void host_to_target_semid_ds(target_ulong target_addr, 1308 struct semid_ds *host_sd) 1309 { 1310 struct target_semid_ds *target_sd; 1311 1312 lock_user_struct(target_sd, target_addr, 0); 1313 host_to_target_ipc_perm(target_addr,&(host_sd->sem_perm)); 1314 target_sd->sem_nsems = tswapl(host_sd->sem_nsems); 1315 target_sd->sem_otime = tswapl(host_sd->sem_otime); 1316 target_sd->sem_ctime = tswapl(host_sd->sem_ctime); 1317 unlock_user_struct(target_sd, target_addr, 1); 1318 } 1319 1320 union semun { 1321 int val; 1322 struct semid_ds *buf; 1323 unsigned short *array; 1324 }; 1325 1326 union target_semun { 1327 int val; 1328 target_long buf; 1329 unsigned short int *array; 1330 }; 1331 1332 static inline void target_to_host_semun(unsigned long cmd, 1333 union semun *host_su, 1334 target_ulong target_addr, 1335 struct semid_ds *ds) 1336 { 1337 union target_semun *target_su; 1338 1339 switch( cmd ) { 1340 case IPC_STAT: 1341 case IPC_SET: 1342 lock_user_struct(target_su, target_addr, 1); 1343 target_to_host_semid_ds(ds,target_su->buf); 1344 host_su->buf = ds; 1345 unlock_user_struct(target_su, target_addr, 0); 1346 break; 1347 case GETVAL: 1348 case SETVAL: 1349 lock_user_struct(target_su, target_addr, 1); 1350 host_su->val = tswapl(target_su->val); 1351 unlock_user_struct(target_su, target_addr, 0); 1352 break; 1353 case GETALL: 1354 case SETALL: 1355 lock_user_struct(target_su, target_addr, 1); 1356 *host_su->array = tswap16(*target_su->array); 1357 unlock_user_struct(target_su, target_addr, 0); 1358 break; 1359 default: 1360 gemu_log("semun operation not fully supported: %d\n", (int)cmd); 1361 } 1362 } 1363 1364 static inline void host_to_target_semun(unsigned long cmd, 1365 target_ulong target_addr, 1366 union semun *host_su, 1367 struct semid_ds *ds) 1368 { 1369 union target_semun *target_su; 1370 1371 switch( cmd ) { 1372 case IPC_STAT: 1373 case IPC_SET: 1374 lock_user_struct(target_su, target_addr, 0); 1375 host_to_target_semid_ds(target_su->buf,ds); 1376 unlock_user_struct(target_su, target_addr, 1); 1377 break; 1378 case GETVAL: 1379 case SETVAL: 1380 lock_user_struct(target_su, target_addr, 0); 1381 target_su->val = tswapl(host_su->val); 1382 unlock_user_struct(target_su, target_addr, 1); 1383 break; 1384 case GETALL: 1385 case SETALL: 1386 lock_user_struct(target_su, target_addr, 0); 1387 *target_su->array = tswap16(*host_su->array); 1388 unlock_user_struct(target_su, target_addr, 1); 1389 break; 1390 default: 1391 gemu_log("semun operation not fully supported: %d\n", (int)cmd); 1392 } 1393 } 1394 1395 static inline long do_semctl(long first, long second, long third, long ptr) 1396 { 1397 union semun arg; 1398 struct semid_ds dsarg; 1399 int cmd = third&0xff; 1400 long ret = 0; 1401 1402 switch( cmd ) { 1403 case GETVAL: 1404 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1405 ret = get_errno(semctl(first, second, cmd, arg)); 1406 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1407 break; 1408 case SETVAL: 1409 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1410 ret = get_errno(semctl(first, second, cmd, arg)); 1411 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1412 break; 1413 case GETALL: 1414 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1415 ret = get_errno(semctl(first, second, cmd, arg)); 1416 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1417 break; 1418 case SETALL: 1419 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1420 ret = get_errno(semctl(first, second, cmd, arg)); 1421 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1422 break; 1423 case IPC_STAT: 1424 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1425 ret = get_errno(semctl(first, second, cmd, arg)); 1426 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1427 break; 1428 case IPC_SET: 1429 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1430 ret = get_errno(semctl(first, second, cmd, arg)); 1431 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1432 break; 1433 default: 1434 ret = get_errno(semctl(first, second, cmd, arg)); 1435 } 1436 1437 return ret; 1438 } 1439 1440 /* ??? This only works with linear mappings. */ 1441 static long do_ipc(long call, long first, long second, long third, 1442 long ptr, long fifth) 1443 { 1444 int version; 1445 long ret = 0; 1446 unsigned long raddr; 1447 struct shmid_ds shm_info; 1448 int i; 1449 1450 version = call >> 16; 1451 call &= 0xffff; 1452 1453 switch (call) { 1454 case IPCOP_semop: 1455 ret = get_errno(semop(first,(struct sembuf *) ptr, second)); 1456 break; 1457 1458 case IPCOP_semget: 1459 ret = get_errno(semget(first, second, third)); 1460 break; 1461 1462 case IPCOP_semctl: 1463 ret = do_semctl(first, second, third, ptr); 1464 break; 1465 1466 case IPCOP_semtimedop: 1467 gemu_log("Unsupported ipc call: %ld (version %d)\n", call, version); 1468 ret = -ENOSYS; 1469 break; 1470 1471 case IPCOP_msgget: 1472 ret = get_errno(msgget(first, second)); 1473 break; 1474 1475 case IPCOP_msgsnd: 1476 ret = get_errno(msgsnd(first, (struct msgbuf *) ptr, second, third)); 1477 break; 1478 1479 case IPCOP_msgctl: 1480 ret = get_errno(msgctl(first, second, (struct msqid_ds *) ptr)); 1481 break; 1482 1483 case IPCOP_msgrcv: 1484 { 1485 struct ipc_kludge 1486 { 1487 void *__unbounded msgp; 1488 long int msgtyp; 1489 }; 1490 1491 struct ipc_kludge *foo = (struct ipc_kludge *) ptr; 1492 struct msgbuf *msgp = (struct msgbuf *) foo->msgp; 1493 1494 ret = get_errno(msgrcv(first, msgp, second, 0, third)); 1495 1496 } 1497 break; 1498 1499 case IPCOP_shmat: 1500 /* SHM_* flags are the same on all linux platforms */ 1501 ret = get_errno((long) shmat(first, (void *) ptr, second)); 1502 if (is_error(ret)) 1503 break; 1504 raddr = ret; 1505 /* find out the length of the shared memory segment */ 1506 1507 ret = get_errno(shmctl(first, IPC_STAT, &shm_info)); 1508 if (is_error(ret)) { 1509 /* can't get length, bail out */ 1510 shmdt((void *) raddr); 1511 break; 1512 } 1513 page_set_flags(raddr, raddr + shm_info.shm_segsz, 1514 PAGE_VALID | PAGE_READ | 1515 ((second & SHM_RDONLY)? 0: PAGE_WRITE)); 1516 for (i = 0; i < N_SHM_REGIONS; ++i) { 1517 if (shm_regions[i].start == 0) { 1518 shm_regions[i].start = raddr; 1519 shm_regions[i].size = shm_info.shm_segsz; 1520 break; 1521 } 1522 } 1523 if (put_user(raddr, (uint32_t *)third)) 1524 return -EFAULT; 1525 ret = 0; 1526 break; 1527 case IPCOP_shmdt: 1528 for (i = 0; i < N_SHM_REGIONS; ++i) { 1529 if (shm_regions[i].start == ptr) { 1530 shm_regions[i].start = 0; 1531 page_set_flags(ptr, shm_regions[i].size, 0); 1532 break; 1533 } 1534 } 1535 ret = get_errno(shmdt((void *) ptr)); 1536 break; 1537 1538 case IPCOP_shmget: 1539 /* IPC_* flag values are the same on all linux platforms */ 1540 ret = get_errno(shmget(first, second, third)); 1541 break; 1542 1543 /* IPC_* and SHM_* command values are the same on all linux platforms */ 1544 case IPCOP_shmctl: 1545 switch(second) { 1546 case IPC_RMID: 1547 case SHM_LOCK: 1548 case SHM_UNLOCK: 1549 ret = get_errno(shmctl(first, second, NULL)); 1550 break; 1551 default: 1552 goto unimplemented; 1553 } 1554 break; 1555 default: 1556 unimplemented: 1557 gemu_log("Unsupported ipc call: %ld (version %d)\n", call, version); 1558 ret = -ENOSYS; 1559 break; 1560 } 1561 return ret; 1562 } 1563 1564 /* kernel structure types definitions */ 1565 #define IFNAMSIZ 16 1566 1567 #define STRUCT(name, list...) STRUCT_ ## name, 1568 #define STRUCT_SPECIAL(name) STRUCT_ ## name, 1569 enum { 1570 #include "syscall_types.h" 1571 }; 1572 #undef STRUCT 1573 #undef STRUCT_SPECIAL 1574 1575 #define STRUCT(name, list...) const argtype struct_ ## name ## _def[] = { list, TYPE_NULL }; 1576 #define STRUCT_SPECIAL(name) 1577 #include "syscall_types.h" 1578 #undef STRUCT 1579 #undef STRUCT_SPECIAL 1580 1581 typedef struct IOCTLEntry { 1582 unsigned int target_cmd; 1583 unsigned int host_cmd; 1584 const char *name; 1585 int access; 1586 const argtype arg_type[5]; 1587 } IOCTLEntry; 1588 1589 #define IOC_R 0x0001 1590 #define IOC_W 0x0002 1591 #define IOC_RW (IOC_R | IOC_W) 1592 1593 #define MAX_STRUCT_SIZE 4096 1594 1595 IOCTLEntry ioctl_entries[] = { 1596 #define IOCTL(cmd, access, types...) \ 1597 { TARGET_ ## cmd, cmd, #cmd, access, { types } }, 1598 #include "ioctls.h" 1599 { 0, 0, }, 1600 }; 1601 1602 /* ??? Implement proper locking for ioctls. */ 1603 static long do_ioctl(long fd, long cmd, long arg) 1604 { 1605 const IOCTLEntry *ie; 1606 const argtype *arg_type; 1607 long ret; 1608 uint8_t buf_temp[MAX_STRUCT_SIZE]; 1609 int target_size; 1610 void *argptr; 1611 1612 ie = ioctl_entries; 1613 for(;;) { 1614 if (ie->target_cmd == 0) { 1615 gemu_log("Unsupported ioctl: cmd=0x%04lx\n", cmd); 1616 return -ENOSYS; 1617 } 1618 if (ie->target_cmd == cmd) 1619 break; 1620 ie++; 1621 } 1622 arg_type = ie->arg_type; 1623 #if defined(DEBUG) 1624 gemu_log("ioctl: cmd=0x%04lx (%s)\n", cmd, ie->name); 1625 #endif 1626 switch(arg_type[0]) { 1627 case TYPE_NULL: 1628 /* no argument */ 1629 ret = get_errno(ioctl(fd, ie->host_cmd)); 1630 break; 1631 case TYPE_PTRVOID: 1632 case TYPE_INT: 1633 /* int argment */ 1634 ret = get_errno(ioctl(fd, ie->host_cmd, arg)); 1635 break; 1636 case TYPE_PTR: 1637 arg_type++; 1638 target_size = thunk_type_size(arg_type, 0); 1639 switch(ie->access) { 1640 case IOC_R: 1641 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 1642 if (!is_error(ret)) { 1643 argptr = lock_user(arg, target_size, 0); 1644 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET); 1645 unlock_user(argptr, arg, target_size); 1646 } 1647 break; 1648 case IOC_W: 1649 argptr = lock_user(arg, target_size, 1); 1650 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST); 1651 unlock_user(argptr, arg, 0); 1652 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 1653 break; 1654 default: 1655 case IOC_RW: 1656 argptr = lock_user(arg, target_size, 1); 1657 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST); 1658 unlock_user(argptr, arg, 0); 1659 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 1660 if (!is_error(ret)) { 1661 argptr = lock_user(arg, target_size, 0); 1662 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET); 1663 unlock_user(argptr, arg, target_size); 1664 } 1665 break; 1666 } 1667 break; 1668 default: 1669 gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n", cmd, arg_type[0]); 1670 ret = -ENOSYS; 1671 break; 1672 } 1673 return ret; 1674 } 1675 1676 bitmask_transtbl iflag_tbl[] = { 1677 { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK }, 1678 { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT }, 1679 { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR }, 1680 { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK }, 1681 { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK }, 1682 { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP }, 1683 { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR }, 1684 { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR }, 1685 { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL }, 1686 { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC }, 1687 { TARGET_IXON, TARGET_IXON, IXON, IXON }, 1688 { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY }, 1689 { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF }, 1690 { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL }, 1691 { 0, 0, 0, 0 } 1692 }; 1693 1694 bitmask_transtbl oflag_tbl[] = { 1695 { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST }, 1696 { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC }, 1697 { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR }, 1698 { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL }, 1699 { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR }, 1700 { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET }, 1701 { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL }, 1702 { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL }, 1703 { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 }, 1704 { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 }, 1705 { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 }, 1706 { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 }, 1707 { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 }, 1708 { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 }, 1709 { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 }, 1710 { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 }, 1711 { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 }, 1712 { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 }, 1713 { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 }, 1714 { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 }, 1715 { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 }, 1716 { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 }, 1717 { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 }, 1718 { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 }, 1719 { 0, 0, 0, 0 } 1720 }; 1721 1722 bitmask_transtbl cflag_tbl[] = { 1723 { TARGET_CBAUD, TARGET_B0, CBAUD, B0 }, 1724 { TARGET_CBAUD, TARGET_B50, CBAUD, B50 }, 1725 { TARGET_CBAUD, TARGET_B75, CBAUD, B75 }, 1726 { TARGET_CBAUD, TARGET_B110, CBAUD, B110 }, 1727 { TARGET_CBAUD, TARGET_B134, CBAUD, B134 }, 1728 { TARGET_CBAUD, TARGET_B150, CBAUD, B150 }, 1729 { TARGET_CBAUD, TARGET_B200, CBAUD, B200 }, 1730 { TARGET_CBAUD, TARGET_B300, CBAUD, B300 }, 1731 { TARGET_CBAUD, TARGET_B600, CBAUD, B600 }, 1732 { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 }, 1733 { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 }, 1734 { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 }, 1735 { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 }, 1736 { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 }, 1737 { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 }, 1738 { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 }, 1739 { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 }, 1740 { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 }, 1741 { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 }, 1742 { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 }, 1743 { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 }, 1744 { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 }, 1745 { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 }, 1746 { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 }, 1747 { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB }, 1748 { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD }, 1749 { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB }, 1750 { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD }, 1751 { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL }, 1752 { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL }, 1753 { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS }, 1754 { 0, 0, 0, 0 } 1755 }; 1756 1757 bitmask_transtbl lflag_tbl[] = { 1758 { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG }, 1759 { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON }, 1760 { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE }, 1761 { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO }, 1762 { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE }, 1763 { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK }, 1764 { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL }, 1765 { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH }, 1766 { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP }, 1767 { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL }, 1768 { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT }, 1769 { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE }, 1770 { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO }, 1771 { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN }, 1772 { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN }, 1773 { 0, 0, 0, 0 } 1774 }; 1775 1776 static void target_to_host_termios (void *dst, const void *src) 1777 { 1778 struct host_termios *host = dst; 1779 const struct target_termios *target = src; 1780 1781 host->c_iflag = 1782 target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl); 1783 host->c_oflag = 1784 target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl); 1785 host->c_cflag = 1786 target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl); 1787 host->c_lflag = 1788 target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl); 1789 host->c_line = target->c_line; 1790 1791 host->c_cc[VINTR] = target->c_cc[TARGET_VINTR]; 1792 host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT]; 1793 host->c_cc[VERASE] = target->c_cc[TARGET_VERASE]; 1794 host->c_cc[VKILL] = target->c_cc[TARGET_VKILL]; 1795 host->c_cc[VEOF] = target->c_cc[TARGET_VEOF]; 1796 host->c_cc[VTIME] = target->c_cc[TARGET_VTIME]; 1797 host->c_cc[VMIN] = target->c_cc[TARGET_VMIN]; 1798 host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC]; 1799 host->c_cc[VSTART] = target->c_cc[TARGET_VSTART]; 1800 host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP]; 1801 host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP]; 1802 host->c_cc[VEOL] = target->c_cc[TARGET_VEOL]; 1803 host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT]; 1804 host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD]; 1805 host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE]; 1806 host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT]; 1807 host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2]; 1808 } 1809 1810 static void host_to_target_termios (void *dst, const void *src) 1811 { 1812 struct target_termios *target = dst; 1813 const struct host_termios *host = src; 1814 1815 target->c_iflag = 1816 tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl)); 1817 target->c_oflag = 1818 tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl)); 1819 target->c_cflag = 1820 tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl)); 1821 target->c_lflag = 1822 tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl)); 1823 target->c_line = host->c_line; 1824 1825 target->c_cc[TARGET_VINTR] = host->c_cc[VINTR]; 1826 target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT]; 1827 target->c_cc[TARGET_VERASE] = host->c_cc[VERASE]; 1828 target->c_cc[TARGET_VKILL] = host->c_cc[VKILL]; 1829 target->c_cc[TARGET_VEOF] = host->c_cc[VEOF]; 1830 target->c_cc[TARGET_VTIME] = host->c_cc[VTIME]; 1831 target->c_cc[TARGET_VMIN] = host->c_cc[VMIN]; 1832 target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC]; 1833 target->c_cc[TARGET_VSTART] = host->c_cc[VSTART]; 1834 target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP]; 1835 target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP]; 1836 target->c_cc[TARGET_VEOL] = host->c_cc[VEOL]; 1837 target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT]; 1838 target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD]; 1839 target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE]; 1840 target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT]; 1841 target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2]; 1842 } 1843 1844 StructEntry struct_termios_def = { 1845 .convert = { host_to_target_termios, target_to_host_termios }, 1846 .size = { sizeof(struct target_termios), sizeof(struct host_termios) }, 1847 .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) }, 1848 }; 1849 1850 static bitmask_transtbl mmap_flags_tbl[] = { 1851 { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED }, 1852 { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE }, 1853 { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED }, 1854 { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS }, 1855 { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN }, 1856 { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE }, 1857 { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE }, 1858 { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED }, 1859 { 0, 0, 0, 0 } 1860 }; 1861 1862 static bitmask_transtbl fcntl_flags_tbl[] = { 1863 { TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, }, 1864 { TARGET_O_ACCMODE, TARGET_O_RDWR, O_ACCMODE, O_RDWR, }, 1865 { TARGET_O_CREAT, TARGET_O_CREAT, O_CREAT, O_CREAT, }, 1866 { TARGET_O_EXCL, TARGET_O_EXCL, O_EXCL, O_EXCL, }, 1867 { TARGET_O_NOCTTY, TARGET_O_NOCTTY, O_NOCTTY, O_NOCTTY, }, 1868 { TARGET_O_TRUNC, TARGET_O_TRUNC, O_TRUNC, O_TRUNC, }, 1869 { TARGET_O_APPEND, TARGET_O_APPEND, O_APPEND, O_APPEND, }, 1870 { TARGET_O_NONBLOCK, TARGET_O_NONBLOCK, O_NONBLOCK, O_NONBLOCK, }, 1871 { TARGET_O_SYNC, TARGET_O_SYNC, O_SYNC, O_SYNC, }, 1872 { TARGET_FASYNC, TARGET_FASYNC, FASYNC, FASYNC, }, 1873 { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, }, 1874 { TARGET_O_NOFOLLOW, TARGET_O_NOFOLLOW, O_NOFOLLOW, O_NOFOLLOW, }, 1875 { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, }, 1876 #if defined(O_DIRECT) 1877 { TARGET_O_DIRECT, TARGET_O_DIRECT, O_DIRECT, O_DIRECT, }, 1878 #endif 1879 { 0, 0, 0, 0 } 1880 }; 1881 1882 #if defined(TARGET_I386) 1883 1884 /* NOTE: there is really one LDT for all the threads */ 1885 uint8_t *ldt_table; 1886 1887 static int read_ldt(target_ulong ptr, unsigned long bytecount) 1888 { 1889 int size; 1890 void *p; 1891 1892 if (!ldt_table) 1893 return 0; 1894 size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE; 1895 if (size > bytecount) 1896 size = bytecount; 1897 p = lock_user(ptr, size, 0); 1898 /* ??? Shoudl this by byteswapped? */ 1899 memcpy(p, ldt_table, size); 1900 unlock_user(p, ptr, size); 1901 return size; 1902 } 1903 1904 /* XXX: add locking support */ 1905 static int write_ldt(CPUX86State *env, 1906 target_ulong ptr, unsigned long bytecount, int oldmode) 1907 { 1908 struct target_modify_ldt_ldt_s ldt_info; 1909 struct target_modify_ldt_ldt_s *target_ldt_info; 1910 int seg_32bit, contents, read_exec_only, limit_in_pages; 1911 int seg_not_present, useable; 1912 uint32_t *lp, entry_1, entry_2; 1913 1914 if (bytecount != sizeof(ldt_info)) 1915 return -EINVAL; 1916 lock_user_struct(target_ldt_info, ptr, 1); 1917 ldt_info.entry_number = tswap32(target_ldt_info->entry_number); 1918 ldt_info.base_addr = tswapl(target_ldt_info->base_addr); 1919 ldt_info.limit = tswap32(target_ldt_info->limit); 1920 ldt_info.flags = tswap32(target_ldt_info->flags); 1921 unlock_user_struct(target_ldt_info, ptr, 0); 1922 1923 if (ldt_info.entry_number >= TARGET_LDT_ENTRIES) 1924 return -EINVAL; 1925 seg_32bit = ldt_info.flags & 1; 1926 contents = (ldt_info.flags >> 1) & 3; 1927 read_exec_only = (ldt_info.flags >> 3) & 1; 1928 limit_in_pages = (ldt_info.flags >> 4) & 1; 1929 seg_not_present = (ldt_info.flags >> 5) & 1; 1930 useable = (ldt_info.flags >> 6) & 1; 1931 1932 if (contents == 3) { 1933 if (oldmode) 1934 return -EINVAL; 1935 if (seg_not_present == 0) 1936 return -EINVAL; 1937 } 1938 /* allocate the LDT */ 1939 if (!ldt_table) { 1940 ldt_table = malloc(TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE); 1941 if (!ldt_table) 1942 return -ENOMEM; 1943 memset(ldt_table, 0, TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE); 1944 env->ldt.base = h2g(ldt_table); 1945 env->ldt.limit = 0xffff; 1946 } 1947 1948 /* NOTE: same code as Linux kernel */ 1949 /* Allow LDTs to be cleared by the user. */ 1950 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) { 1951 if (oldmode || 1952 (contents == 0 && 1953 read_exec_only == 1 && 1954 seg_32bit == 0 && 1955 limit_in_pages == 0 && 1956 seg_not_present == 1 && 1957 useable == 0 )) { 1958 entry_1 = 0; 1959 entry_2 = 0; 1960 goto install; 1961 } 1962 } 1963 1964 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) | 1965 (ldt_info.limit & 0x0ffff); 1966 entry_2 = (ldt_info.base_addr & 0xff000000) | 1967 ((ldt_info.base_addr & 0x00ff0000) >> 16) | 1968 (ldt_info.limit & 0xf0000) | 1969 ((read_exec_only ^ 1) << 9) | 1970 (contents << 10) | 1971 ((seg_not_present ^ 1) << 15) | 1972 (seg_32bit << 22) | 1973 (limit_in_pages << 23) | 1974 0x7000; 1975 if (!oldmode) 1976 entry_2 |= (useable << 20); 1977 1978 /* Install the new entry ... */ 1979 install: 1980 lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3)); 1981 lp[0] = tswap32(entry_1); 1982 lp[1] = tswap32(entry_2); 1983 return 0; 1984 } 1985 1986 /* specific and weird i386 syscalls */ 1987 int do_modify_ldt(CPUX86State *env, int func, target_ulong ptr, unsigned long bytecount) 1988 { 1989 int ret = -ENOSYS; 1990 1991 switch (func) { 1992 case 0: 1993 ret = read_ldt(ptr, bytecount); 1994 break; 1995 case 1: 1996 ret = write_ldt(env, ptr, bytecount, 1); 1997 break; 1998 case 0x11: 1999 ret = write_ldt(env, ptr, bytecount, 0); 2000 break; 2001 } 2002 return ret; 2003 } 2004 2005 #endif /* defined(TARGET_I386) */ 2006 2007 /* this stack is the equivalent of the kernel stack associated with a 2008 thread/process */ 2009 #define NEW_STACK_SIZE 8192 2010 2011 static int clone_func(void *arg) 2012 { 2013 CPUState *env = arg; 2014 cpu_loop(env); 2015 /* never exits */ 2016 return 0; 2017 } 2018 2019 int do_fork(CPUState *env, unsigned int flags, unsigned long newsp) 2020 { 2021 int ret; 2022 TaskState *ts; 2023 uint8_t *new_stack; 2024 CPUState *new_env; 2025 2026 if (flags & CLONE_VM) { 2027 ts = malloc(sizeof(TaskState) + NEW_STACK_SIZE); 2028 memset(ts, 0, sizeof(TaskState)); 2029 new_stack = ts->stack; 2030 ts->used = 1; 2031 /* add in task state list */ 2032 ts->next = first_task_state; 2033 first_task_state = ts; 2034 /* we create a new CPU instance. */ 2035 new_env = cpu_copy(env); 2036 #if defined(TARGET_I386) 2037 if (!newsp) 2038 newsp = env->regs[R_ESP]; 2039 new_env->regs[R_ESP] = newsp; 2040 new_env->regs[R_EAX] = 0; 2041 #elif defined(TARGET_ARM) 2042 if (!newsp) 2043 newsp = env->regs[13]; 2044 new_env->regs[13] = newsp; 2045 new_env->regs[0] = 0; 2046 #elif defined(TARGET_SPARC) 2047 if (!newsp) 2048 newsp = env->regwptr[22]; 2049 new_env->regwptr[22] = newsp; 2050 new_env->regwptr[0] = 0; 2051 /* XXXXX */ 2052 printf ("HELPME: %s:%d\n", __FILE__, __LINE__); 2053 #elif defined(TARGET_M68K) 2054 if (!newsp) 2055 newsp = env->aregs[7]; 2056 new_env->aregs[7] = newsp; 2057 new_env->dregs[0] = 0; 2058 /* ??? is this sufficient? */ 2059 #elif defined(TARGET_MIPS) 2060 if (!newsp) 2061 newsp = env->gpr[29]; 2062 new_env->gpr[29] = newsp; 2063 #elif defined(TARGET_PPC) 2064 if (!newsp) 2065 newsp = env->gpr[1]; 2066 new_env->gpr[1] = newsp; 2067 { 2068 int i; 2069 for (i = 7; i < 32; i++) 2070 new_env->gpr[i] = 0; 2071 } 2072 #elif defined(TARGET_SH4) 2073 if (!newsp) 2074 newsp = env->gregs[15]; 2075 new_env->gregs[15] = newsp; 2076 /* XXXXX */ 2077 #elif defined(TARGET_ALPHA) 2078 if (!newsp) 2079 newsp = env->ir[30]; 2080 new_env->ir[30] = newsp; 2081 /* ? */ 2082 { 2083 int i; 2084 for (i = 7; i < 30; i++) 2085 new_env->ir[i] = 0; 2086 } 2087 #else 2088 #error unsupported target CPU 2089 #endif 2090 new_env->opaque = ts; 2091 #ifdef __ia64__ 2092 ret = __clone2(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env); 2093 #else 2094 ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env); 2095 #endif 2096 } else { 2097 /* if no CLONE_VM, we consider it is a fork */ 2098 if ((flags & ~CSIGNAL) != 0) 2099 return -EINVAL; 2100 ret = fork(); 2101 } 2102 return ret; 2103 } 2104 2105 static long do_fcntl(int fd, int cmd, target_ulong arg) 2106 { 2107 struct flock fl; 2108 struct target_flock *target_fl; 2109 struct flock64 fl64; 2110 struct target_flock64 *target_fl64; 2111 long ret; 2112 2113 switch(cmd) { 2114 case TARGET_F_GETLK: 2115 lock_user_struct(target_fl, arg, 1); 2116 fl.l_type = tswap16(target_fl->l_type); 2117 fl.l_whence = tswap16(target_fl->l_whence); 2118 fl.l_start = tswapl(target_fl->l_start); 2119 fl.l_len = tswapl(target_fl->l_len); 2120 fl.l_pid = tswapl(target_fl->l_pid); 2121 unlock_user_struct(target_fl, arg, 0); 2122 ret = fcntl(fd, cmd, &fl); 2123 if (ret == 0) { 2124 lock_user_struct(target_fl, arg, 0); 2125 target_fl->l_type = tswap16(fl.l_type); 2126 target_fl->l_whence = tswap16(fl.l_whence); 2127 target_fl->l_start = tswapl(fl.l_start); 2128 target_fl->l_len = tswapl(fl.l_len); 2129 target_fl->l_pid = tswapl(fl.l_pid); 2130 unlock_user_struct(target_fl, arg, 1); 2131 } 2132 break; 2133 2134 case TARGET_F_SETLK: 2135 case TARGET_F_SETLKW: 2136 lock_user_struct(target_fl, arg, 1); 2137 fl.l_type = tswap16(target_fl->l_type); 2138 fl.l_whence = tswap16(target_fl->l_whence); 2139 fl.l_start = tswapl(target_fl->l_start); 2140 fl.l_len = tswapl(target_fl->l_len); 2141 fl.l_pid = tswapl(target_fl->l_pid); 2142 unlock_user_struct(target_fl, arg, 0); 2143 ret = fcntl(fd, cmd, &fl); 2144 break; 2145 2146 case TARGET_F_GETLK64: 2147 lock_user_struct(target_fl64, arg, 1); 2148 fl64.l_type = tswap16(target_fl64->l_type) >> 1; 2149 fl64.l_whence = tswap16(target_fl64->l_whence); 2150 fl64.l_start = tswapl(target_fl64->l_start); 2151 fl64.l_len = tswapl(target_fl64->l_len); 2152 fl64.l_pid = tswap16(target_fl64->l_pid); 2153 unlock_user_struct(target_fl64, arg, 0); 2154 ret = fcntl(fd, cmd >> 1, &fl64); 2155 if (ret == 0) { 2156 lock_user_struct(target_fl64, arg, 0); 2157 target_fl64->l_type = tswap16(fl64.l_type) >> 1; 2158 target_fl64->l_whence = tswap16(fl64.l_whence); 2159 target_fl64->l_start = tswapl(fl64.l_start); 2160 target_fl64->l_len = tswapl(fl64.l_len); 2161 target_fl64->l_pid = tswapl(fl64.l_pid); 2162 unlock_user_struct(target_fl64, arg, 1); 2163 } 2164 break; 2165 case TARGET_F_SETLK64: 2166 case TARGET_F_SETLKW64: 2167 lock_user_struct(target_fl64, arg, 1); 2168 fl64.l_type = tswap16(target_fl64->l_type) >> 1; 2169 fl64.l_whence = tswap16(target_fl64->l_whence); 2170 fl64.l_start = tswapl(target_fl64->l_start); 2171 fl64.l_len = tswapl(target_fl64->l_len); 2172 fl64.l_pid = tswap16(target_fl64->l_pid); 2173 unlock_user_struct(target_fl64, arg, 0); 2174 ret = fcntl(fd, cmd >> 1, &fl64); 2175 break; 2176 2177 case F_GETFL: 2178 ret = fcntl(fd, cmd, arg); 2179 ret = host_to_target_bitmask(ret, fcntl_flags_tbl); 2180 break; 2181 2182 case F_SETFL: 2183 ret = fcntl(fd, cmd, target_to_host_bitmask(arg, fcntl_flags_tbl)); 2184 break; 2185 2186 default: 2187 ret = fcntl(fd, cmd, arg); 2188 break; 2189 } 2190 return ret; 2191 } 2192 2193 #ifdef USE_UID16 2194 2195 static inline int high2lowuid(int uid) 2196 { 2197 if (uid > 65535) 2198 return 65534; 2199 else 2200 return uid; 2201 } 2202 2203 static inline int high2lowgid(int gid) 2204 { 2205 if (gid > 65535) 2206 return 65534; 2207 else 2208 return gid; 2209 } 2210 2211 static inline int low2highuid(int uid) 2212 { 2213 if ((int16_t)uid == -1) 2214 return -1; 2215 else 2216 return uid; 2217 } 2218 2219 static inline int low2highgid(int gid) 2220 { 2221 if ((int16_t)gid == -1) 2222 return -1; 2223 else 2224 return gid; 2225 } 2226 2227 #endif /* USE_UID16 */ 2228 2229 void syscall_init(void) 2230 { 2231 IOCTLEntry *ie; 2232 const argtype *arg_type; 2233 int size; 2234 2235 #define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def); 2236 #define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def); 2237 #include "syscall_types.h" 2238 #undef STRUCT 2239 #undef STRUCT_SPECIAL 2240 2241 /* we patch the ioctl size if necessary. We rely on the fact that 2242 no ioctl has all the bits at '1' in the size field */ 2243 ie = ioctl_entries; 2244 while (ie->target_cmd != 0) { 2245 if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) == 2246 TARGET_IOC_SIZEMASK) { 2247 arg_type = ie->arg_type; 2248 if (arg_type[0] != TYPE_PTR) { 2249 fprintf(stderr, "cannot patch size for ioctl 0x%x\n", 2250 ie->target_cmd); 2251 exit(1); 2252 } 2253 arg_type++; 2254 size = thunk_type_size(arg_type, 0); 2255 ie->target_cmd = (ie->target_cmd & 2256 ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) | 2257 (size << TARGET_IOC_SIZESHIFT); 2258 } 2259 /* automatic consistency check if same arch */ 2260 #if defined(__i386__) && defined(TARGET_I386) 2261 if (ie->target_cmd != ie->host_cmd) { 2262 fprintf(stderr, "ERROR: ioctl: target=0x%x host=0x%x\n", 2263 ie->target_cmd, ie->host_cmd); 2264 } 2265 #endif 2266 ie++; 2267 } 2268 } 2269 2270 static inline uint64_t target_offset64(uint32_t word0, uint32_t word1) 2271 { 2272 #ifdef TARGET_WORDS_BIG_ENDIAN 2273 return ((uint64_t)word0 << 32) | word1; 2274 #else 2275 return ((uint64_t)word1 << 32) | word0; 2276 #endif 2277 } 2278 2279 #ifdef TARGET_NR_truncate64 2280 static inline long target_truncate64(void *cpu_env, const char *arg1, 2281 long arg2, long arg3, long arg4) 2282 { 2283 #ifdef TARGET_ARM 2284 if (((CPUARMState *)cpu_env)->eabi) 2285 { 2286 arg2 = arg3; 2287 arg3 = arg4; 2288 } 2289 #endif 2290 return get_errno(truncate64(arg1, target_offset64(arg2, arg3))); 2291 } 2292 #endif 2293 2294 #ifdef TARGET_NR_ftruncate64 2295 static inline long target_ftruncate64(void *cpu_env, long arg1, long arg2, 2296 long arg3, long arg4) 2297 { 2298 #ifdef TARGET_ARM 2299 if (((CPUARMState *)cpu_env)->eabi) 2300 { 2301 arg2 = arg3; 2302 arg3 = arg4; 2303 } 2304 #endif 2305 return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3))); 2306 } 2307 #endif 2308 2309 static inline void target_to_host_timespec(struct timespec *host_ts, 2310 target_ulong target_addr) 2311 { 2312 struct target_timespec *target_ts; 2313 2314 lock_user_struct(target_ts, target_addr, 1); 2315 host_ts->tv_sec = tswapl(target_ts->tv_sec); 2316 host_ts->tv_nsec = tswapl(target_ts->tv_nsec); 2317 unlock_user_struct(target_ts, target_addr, 0); 2318 } 2319 2320 static inline void host_to_target_timespec(target_ulong target_addr, 2321 struct timespec *host_ts) 2322 { 2323 struct target_timespec *target_ts; 2324 2325 lock_user_struct(target_ts, target_addr, 0); 2326 target_ts->tv_sec = tswapl(host_ts->tv_sec); 2327 target_ts->tv_nsec = tswapl(host_ts->tv_nsec); 2328 unlock_user_struct(target_ts, target_addr, 1); 2329 } 2330 2331 long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3, 2332 long arg4, long arg5, long arg6) 2333 { 2334 long ret; 2335 struct stat st; 2336 struct statfs stfs; 2337 void *p; 2338 2339 #ifdef DEBUG 2340 gemu_log("syscall %d", num); 2341 #endif 2342 switch(num) { 2343 case TARGET_NR_exit: 2344 #ifdef HAVE_GPROF 2345 _mcleanup(); 2346 #endif 2347 gdb_exit(cpu_env, arg1); 2348 /* XXX: should free thread stack and CPU env */ 2349 _exit(arg1); 2350 ret = 0; /* avoid warning */ 2351 break; 2352 case TARGET_NR_read: 2353 page_unprotect_range(arg2, arg3); 2354 p = lock_user(arg2, arg3, 0); 2355 ret = get_errno(read(arg1, p, arg3)); 2356 unlock_user(p, arg2, ret); 2357 break; 2358 case TARGET_NR_write: 2359 p = lock_user(arg2, arg3, 1); 2360 ret = get_errno(write(arg1, p, arg3)); 2361 unlock_user(p, arg2, 0); 2362 break; 2363 case TARGET_NR_open: 2364 p = lock_user_string(arg1); 2365 ret = get_errno(open(path(p), 2366 target_to_host_bitmask(arg2, fcntl_flags_tbl), 2367 arg3)); 2368 unlock_user(p, arg1, 0); 2369 break; 2370 case TARGET_NR_close: 2371 ret = get_errno(close(arg1)); 2372 break; 2373 case TARGET_NR_brk: 2374 ret = do_brk(arg1); 2375 break; 2376 case TARGET_NR_fork: 2377 ret = get_errno(do_fork(cpu_env, SIGCHLD, 0)); 2378 break; 2379 #ifdef TARGET_NR_waitpid 2380 case TARGET_NR_waitpid: 2381 { 2382 int status; 2383 ret = get_errno(waitpid(arg1, &status, arg3)); 2384 if (!is_error(ret) && arg2) 2385 tput32(arg2, status); 2386 } 2387 break; 2388 #endif 2389 #ifdef TARGET_NR_creat /* not on alpha */ 2390 case TARGET_NR_creat: 2391 p = lock_user_string(arg1); 2392 ret = get_errno(creat(p, arg2)); 2393 unlock_user(p, arg1, 0); 2394 break; 2395 #endif 2396 case TARGET_NR_link: 2397 { 2398 void * p2; 2399 p = lock_user_string(arg1); 2400 p2 = lock_user_string(arg2); 2401 ret = get_errno(link(p, p2)); 2402 unlock_user(p2, arg2, 0); 2403 unlock_user(p, arg1, 0); 2404 } 2405 break; 2406 case TARGET_NR_unlink: 2407 p = lock_user_string(arg1); 2408 ret = get_errno(unlink(p)); 2409 unlock_user(p, arg1, 0); 2410 break; 2411 case TARGET_NR_execve: 2412 { 2413 char **argp, **envp; 2414 int argc, envc; 2415 target_ulong gp; 2416 target_ulong guest_argp; 2417 target_ulong guest_envp; 2418 target_ulong addr; 2419 char **q; 2420 2421 argc = 0; 2422 guest_argp = arg2; 2423 for (gp = guest_argp; tgetl(gp); gp++) 2424 argc++; 2425 envc = 0; 2426 guest_envp = arg3; 2427 for (gp = guest_envp; tgetl(gp); gp++) 2428 envc++; 2429 2430 argp = alloca((argc + 1) * sizeof(void *)); 2431 envp = alloca((envc + 1) * sizeof(void *)); 2432 2433 for (gp = guest_argp, q = argp; ; 2434 gp += sizeof(target_ulong), q++) { 2435 addr = tgetl(gp); 2436 if (!addr) 2437 break; 2438 *q = lock_user_string(addr); 2439 } 2440 *q = NULL; 2441 2442 for (gp = guest_envp, q = envp; ; 2443 gp += sizeof(target_ulong), q++) { 2444 addr = tgetl(gp); 2445 if (!addr) 2446 break; 2447 *q = lock_user_string(addr); 2448 } 2449 *q = NULL; 2450 2451 p = lock_user_string(arg1); 2452 ret = get_errno(execve(p, argp, envp)); 2453 unlock_user(p, arg1, 0); 2454 2455 for (gp = guest_argp, q = argp; *q; 2456 gp += sizeof(target_ulong), q++) { 2457 addr = tgetl(gp); 2458 unlock_user(*q, addr, 0); 2459 } 2460 for (gp = guest_envp, q = envp; *q; 2461 gp += sizeof(target_ulong), q++) { 2462 addr = tgetl(gp); 2463 unlock_user(*q, addr, 0); 2464 } 2465 } 2466 break; 2467 case TARGET_NR_chdir: 2468 p = lock_user_string(arg1); 2469 ret = get_errno(chdir(p)); 2470 unlock_user(p, arg1, 0); 2471 break; 2472 #ifdef TARGET_NR_time 2473 case TARGET_NR_time: 2474 { 2475 time_t host_time; 2476 ret = get_errno(time(&host_time)); 2477 if (!is_error(ret) && arg1) 2478 tputl(arg1, host_time); 2479 } 2480 break; 2481 #endif 2482 case TARGET_NR_mknod: 2483 p = lock_user_string(arg1); 2484 ret = get_errno(mknod(p, arg2, arg3)); 2485 unlock_user(p, arg1, 0); 2486 break; 2487 case TARGET_NR_chmod: 2488 p = lock_user_string(arg1); 2489 ret = get_errno(chmod(p, arg2)); 2490 unlock_user(p, arg1, 0); 2491 break; 2492 #ifdef TARGET_NR_break 2493 case TARGET_NR_break: 2494 goto unimplemented; 2495 #endif 2496 #ifdef TARGET_NR_oldstat 2497 case TARGET_NR_oldstat: 2498 goto unimplemented; 2499 #endif 2500 case TARGET_NR_lseek: 2501 ret = get_errno(lseek(arg1, arg2, arg3)); 2502 break; 2503 #ifdef TARGET_NR_getxpid 2504 case TARGET_NR_getxpid: 2505 #else 2506 case TARGET_NR_getpid: 2507 #endif 2508 ret = get_errno(getpid()); 2509 break; 2510 case TARGET_NR_mount: 2511 { 2512 /* need to look at the data field */ 2513 void *p2, *p3; 2514 p = lock_user_string(arg1); 2515 p2 = lock_user_string(arg2); 2516 p3 = lock_user_string(arg3); 2517 ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, (const void *)arg5)); 2518 unlock_user(p, arg1, 0); 2519 unlock_user(p2, arg2, 0); 2520 unlock_user(p3, arg3, 0); 2521 break; 2522 } 2523 #ifdef TARGET_NR_umount 2524 case TARGET_NR_umount: 2525 p = lock_user_string(arg1); 2526 ret = get_errno(umount(p)); 2527 unlock_user(p, arg1, 0); 2528 break; 2529 #endif 2530 #ifdef TARGET_NR_stime /* not on alpha */ 2531 case TARGET_NR_stime: 2532 { 2533 time_t host_time; 2534 host_time = tgetl(arg1); 2535 ret = get_errno(stime(&host_time)); 2536 } 2537 break; 2538 #endif 2539 case TARGET_NR_ptrace: 2540 goto unimplemented; 2541 #ifdef TARGET_NR_alarm /* not on alpha */ 2542 case TARGET_NR_alarm: 2543 ret = alarm(arg1); 2544 break; 2545 #endif 2546 #ifdef TARGET_NR_oldfstat 2547 case TARGET_NR_oldfstat: 2548 goto unimplemented; 2549 #endif 2550 #ifdef TARGET_NR_pause /* not on alpha */ 2551 case TARGET_NR_pause: 2552 ret = get_errno(pause()); 2553 break; 2554 #endif 2555 #ifdef TARGET_NR_utime 2556 case TARGET_NR_utime: 2557 { 2558 struct utimbuf tbuf, *host_tbuf; 2559 struct target_utimbuf *target_tbuf; 2560 if (arg2) { 2561 lock_user_struct(target_tbuf, arg2, 1); 2562 tbuf.actime = tswapl(target_tbuf->actime); 2563 tbuf.modtime = tswapl(target_tbuf->modtime); 2564 unlock_user_struct(target_tbuf, arg2, 0); 2565 host_tbuf = &tbuf; 2566 } else { 2567 host_tbuf = NULL; 2568 } 2569 p = lock_user_string(arg1); 2570 ret = get_errno(utime(p, host_tbuf)); 2571 unlock_user(p, arg1, 0); 2572 } 2573 break; 2574 #endif 2575 case TARGET_NR_utimes: 2576 { 2577 struct timeval *tvp, tv[2]; 2578 if (arg2) { 2579 target_to_host_timeval(&tv[0], arg2); 2580 target_to_host_timeval(&tv[1], 2581 arg2 + sizeof (struct target_timeval)); 2582 tvp = tv; 2583 } else { 2584 tvp = NULL; 2585 } 2586 p = lock_user_string(arg1); 2587 ret = get_errno(utimes(p, tvp)); 2588 unlock_user(p, arg1, 0); 2589 } 2590 break; 2591 #ifdef TARGET_NR_stty 2592 case TARGET_NR_stty: 2593 goto unimplemented; 2594 #endif 2595 #ifdef TARGET_NR_gtty 2596 case TARGET_NR_gtty: 2597 goto unimplemented; 2598 #endif 2599 case TARGET_NR_access: 2600 p = lock_user_string(arg1); 2601 ret = get_errno(access(p, arg2)); 2602 unlock_user(p, arg1, 0); 2603 break; 2604 #ifdef TARGET_NR_nice /* not on alpha */ 2605 case TARGET_NR_nice: 2606 ret = get_errno(nice(arg1)); 2607 break; 2608 #endif 2609 #ifdef TARGET_NR_ftime 2610 case TARGET_NR_ftime: 2611 goto unimplemented; 2612 #endif 2613 case TARGET_NR_sync: 2614 sync(); 2615 ret = 0; 2616 break; 2617 case TARGET_NR_kill: 2618 ret = get_errno(kill(arg1, arg2)); 2619 break; 2620 case TARGET_NR_rename: 2621 { 2622 void *p2; 2623 p = lock_user_string(arg1); 2624 p2 = lock_user_string(arg2); 2625 ret = get_errno(rename(p, p2)); 2626 unlock_user(p2, arg2, 0); 2627 unlock_user(p, arg1, 0); 2628 } 2629 break; 2630 case TARGET_NR_mkdir: 2631 p = lock_user_string(arg1); 2632 ret = get_errno(mkdir(p, arg2)); 2633 unlock_user(p, arg1, 0); 2634 break; 2635 case TARGET_NR_rmdir: 2636 p = lock_user_string(arg1); 2637 ret = get_errno(rmdir(p)); 2638 unlock_user(p, arg1, 0); 2639 break; 2640 case TARGET_NR_dup: 2641 ret = get_errno(dup(arg1)); 2642 break; 2643 case TARGET_NR_pipe: 2644 { 2645 int host_pipe[2]; 2646 ret = get_errno(pipe(host_pipe)); 2647 if (!is_error(ret)) { 2648 #if defined(TARGET_MIPS) 2649 ((CPUMIPSState*)cpu_env)->gpr[3] = host_pipe[1]; 2650 ret = host_pipe[0]; 2651 #else 2652 tput32(arg1, host_pipe[0]); 2653 tput32(arg1 + 4, host_pipe[1]); 2654 #endif 2655 } 2656 } 2657 break; 2658 case TARGET_NR_times: 2659 { 2660 struct target_tms *tmsp; 2661 struct tms tms; 2662 ret = get_errno(times(&tms)); 2663 if (arg1) { 2664 tmsp = lock_user(arg1, sizeof(struct target_tms), 0); 2665 tmsp->tms_utime = tswapl(host_to_target_clock_t(tms.tms_utime)); 2666 tmsp->tms_stime = tswapl(host_to_target_clock_t(tms.tms_stime)); 2667 tmsp->tms_cutime = tswapl(host_to_target_clock_t(tms.tms_cutime)); 2668 tmsp->tms_cstime = tswapl(host_to_target_clock_t(tms.tms_cstime)); 2669 } 2670 if (!is_error(ret)) 2671 ret = host_to_target_clock_t(ret); 2672 } 2673 break; 2674 #ifdef TARGET_NR_prof 2675 case TARGET_NR_prof: 2676 goto unimplemented; 2677 #endif 2678 #ifdef TARGET_NR_signal 2679 case TARGET_NR_signal: 2680 goto unimplemented; 2681 #endif 2682 case TARGET_NR_acct: 2683 p = lock_user_string(arg1); 2684 ret = get_errno(acct(path(p))); 2685 unlock_user(p, arg1, 0); 2686 break; 2687 #ifdef TARGET_NR_umount2 /* not on alpha */ 2688 case TARGET_NR_umount2: 2689 p = lock_user_string(arg1); 2690 ret = get_errno(umount2(p, arg2)); 2691 unlock_user(p, arg1, 0); 2692 break; 2693 #endif 2694 #ifdef TARGET_NR_lock 2695 case TARGET_NR_lock: 2696 goto unimplemented; 2697 #endif 2698 case TARGET_NR_ioctl: 2699 ret = do_ioctl(arg1, arg2, arg3); 2700 break; 2701 case TARGET_NR_fcntl: 2702 ret = get_errno(do_fcntl(arg1, arg2, arg3)); 2703 break; 2704 #ifdef TARGET_NR_mpx 2705 case TARGET_NR_mpx: 2706 goto unimplemented; 2707 #endif 2708 case TARGET_NR_setpgid: 2709 ret = get_errno(setpgid(arg1, arg2)); 2710 break; 2711 #ifdef TARGET_NR_ulimit 2712 case TARGET_NR_ulimit: 2713 goto unimplemented; 2714 #endif 2715 #ifdef TARGET_NR_oldolduname 2716 case TARGET_NR_oldolduname: 2717 goto unimplemented; 2718 #endif 2719 case TARGET_NR_umask: 2720 ret = get_errno(umask(arg1)); 2721 break; 2722 case TARGET_NR_chroot: 2723 p = lock_user_string(arg1); 2724 ret = get_errno(chroot(p)); 2725 unlock_user(p, arg1, 0); 2726 break; 2727 case TARGET_NR_ustat: 2728 goto unimplemented; 2729 case TARGET_NR_dup2: 2730 ret = get_errno(dup2(arg1, arg2)); 2731 break; 2732 #ifdef TARGET_NR_getppid /* not on alpha */ 2733 case TARGET_NR_getppid: 2734 ret = get_errno(getppid()); 2735 break; 2736 #endif 2737 case TARGET_NR_getpgrp: 2738 ret = get_errno(getpgrp()); 2739 break; 2740 case TARGET_NR_setsid: 2741 ret = get_errno(setsid()); 2742 break; 2743 #ifdef TARGET_NR_sigaction 2744 case TARGET_NR_sigaction: 2745 { 2746 #if !defined(TARGET_MIPS) 2747 struct target_old_sigaction *old_act; 2748 struct target_sigaction act, oact, *pact; 2749 if (arg2) { 2750 lock_user_struct(old_act, arg2, 1); 2751 act._sa_handler = old_act->_sa_handler; 2752 target_siginitset(&act.sa_mask, old_act->sa_mask); 2753 act.sa_flags = old_act->sa_flags; 2754 act.sa_restorer = old_act->sa_restorer; 2755 unlock_user_struct(old_act, arg2, 0); 2756 pact = &act; 2757 } else { 2758 pact = NULL; 2759 } 2760 ret = get_errno(do_sigaction(arg1, pact, &oact)); 2761 if (!is_error(ret) && arg3) { 2762 lock_user_struct(old_act, arg3, 0); 2763 old_act->_sa_handler = oact._sa_handler; 2764 old_act->sa_mask = oact.sa_mask.sig[0]; 2765 old_act->sa_flags = oact.sa_flags; 2766 old_act->sa_restorer = oact.sa_restorer; 2767 unlock_user_struct(old_act, arg3, 1); 2768 } 2769 #else 2770 struct target_sigaction act, oact, *pact, *old_act; 2771 2772 if (arg2) { 2773 lock_user_struct(old_act, arg2, 1); 2774 act._sa_handler = old_act->_sa_handler; 2775 target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]); 2776 act.sa_flags = old_act->sa_flags; 2777 unlock_user_struct(old_act, arg2, 0); 2778 pact = &act; 2779 } else { 2780 pact = NULL; 2781 } 2782 2783 ret = get_errno(do_sigaction(arg1, pact, &oact)); 2784 2785 if (!is_error(ret) && arg3) { 2786 lock_user_struct(old_act, arg3, 0); 2787 old_act->_sa_handler = oact._sa_handler; 2788 old_act->sa_flags = oact.sa_flags; 2789 old_act->sa_mask.sig[0] = oact.sa_mask.sig[0]; 2790 old_act->sa_mask.sig[1] = 0; 2791 old_act->sa_mask.sig[2] = 0; 2792 old_act->sa_mask.sig[3] = 0; 2793 unlock_user_struct(old_act, arg3, 1); 2794 } 2795 #endif 2796 } 2797 break; 2798 #endif 2799 case TARGET_NR_rt_sigaction: 2800 { 2801 struct target_sigaction *act; 2802 struct target_sigaction *oact; 2803 2804 if (arg2) 2805 lock_user_struct(act, arg2, 1); 2806 else 2807 act = NULL; 2808 if (arg3) 2809 lock_user_struct(oact, arg3, 0); 2810 else 2811 oact = NULL; 2812 ret = get_errno(do_sigaction(arg1, act, oact)); 2813 if (arg2) 2814 unlock_user_struct(act, arg2, 0); 2815 if (arg3) 2816 unlock_user_struct(oact, arg3, 1); 2817 } 2818 break; 2819 #ifdef TARGET_NR_sgetmask /* not on alpha */ 2820 case TARGET_NR_sgetmask: 2821 { 2822 sigset_t cur_set; 2823 target_ulong target_set; 2824 sigprocmask(0, NULL, &cur_set); 2825 host_to_target_old_sigset(&target_set, &cur_set); 2826 ret = target_set; 2827 } 2828 break; 2829 #endif 2830 #ifdef TARGET_NR_ssetmask /* not on alpha */ 2831 case TARGET_NR_ssetmask: 2832 { 2833 sigset_t set, oset, cur_set; 2834 target_ulong target_set = arg1; 2835 sigprocmask(0, NULL, &cur_set); 2836 target_to_host_old_sigset(&set, &target_set); 2837 sigorset(&set, &set, &cur_set); 2838 sigprocmask(SIG_SETMASK, &set, &oset); 2839 host_to_target_old_sigset(&target_set, &oset); 2840 ret = target_set; 2841 } 2842 break; 2843 #endif 2844 #ifdef TARGET_NR_sigprocmask 2845 case TARGET_NR_sigprocmask: 2846 { 2847 int how = arg1; 2848 sigset_t set, oldset, *set_ptr; 2849 2850 if (arg2) { 2851 switch(how) { 2852 case TARGET_SIG_BLOCK: 2853 how = SIG_BLOCK; 2854 break; 2855 case TARGET_SIG_UNBLOCK: 2856 how = SIG_UNBLOCK; 2857 break; 2858 case TARGET_SIG_SETMASK: 2859 how = SIG_SETMASK; 2860 break; 2861 default: 2862 ret = -EINVAL; 2863 goto fail; 2864 } 2865 p = lock_user(arg2, sizeof(target_sigset_t), 1); 2866 target_to_host_old_sigset(&set, p); 2867 unlock_user(p, arg2, 0); 2868 set_ptr = &set; 2869 } else { 2870 how = 0; 2871 set_ptr = NULL; 2872 } 2873 ret = get_errno(sigprocmask(arg1, set_ptr, &oldset)); 2874 if (!is_error(ret) && arg3) { 2875 p = lock_user(arg3, sizeof(target_sigset_t), 0); 2876 host_to_target_old_sigset(p, &oldset); 2877 unlock_user(p, arg3, sizeof(target_sigset_t)); 2878 } 2879 } 2880 break; 2881 #endif 2882 case TARGET_NR_rt_sigprocmask: 2883 { 2884 int how = arg1; 2885 sigset_t set, oldset, *set_ptr; 2886 2887 if (arg2) { 2888 switch(how) { 2889 case TARGET_SIG_BLOCK: 2890 how = SIG_BLOCK; 2891 break; 2892 case TARGET_SIG_UNBLOCK: 2893 how = SIG_UNBLOCK; 2894 break; 2895 case TARGET_SIG_SETMASK: 2896 how = SIG_SETMASK; 2897 break; 2898 default: 2899 ret = -EINVAL; 2900 goto fail; 2901 } 2902 p = lock_user(arg2, sizeof(target_sigset_t), 1); 2903 target_to_host_sigset(&set, p); 2904 unlock_user(p, arg2, 0); 2905 set_ptr = &set; 2906 } else { 2907 how = 0; 2908 set_ptr = NULL; 2909 } 2910 ret = get_errno(sigprocmask(how, set_ptr, &oldset)); 2911 if (!is_error(ret) && arg3) { 2912 p = lock_user(arg3, sizeof(target_sigset_t), 0); 2913 host_to_target_sigset(p, &oldset); 2914 unlock_user(p, arg3, sizeof(target_sigset_t)); 2915 } 2916 } 2917 break; 2918 #ifdef TARGET_NR_sigpending 2919 case TARGET_NR_sigpending: 2920 { 2921 sigset_t set; 2922 ret = get_errno(sigpending(&set)); 2923 if (!is_error(ret)) { 2924 p = lock_user(arg1, sizeof(target_sigset_t), 0); 2925 host_to_target_old_sigset(p, &set); 2926 unlock_user(p, arg1, sizeof(target_sigset_t)); 2927 } 2928 } 2929 break; 2930 #endif 2931 case TARGET_NR_rt_sigpending: 2932 { 2933 sigset_t set; 2934 ret = get_errno(sigpending(&set)); 2935 if (!is_error(ret)) { 2936 p = lock_user(arg1, sizeof(target_sigset_t), 0); 2937 host_to_target_sigset(p, &set); 2938 unlock_user(p, arg1, sizeof(target_sigset_t)); 2939 } 2940 } 2941 break; 2942 #ifdef TARGET_NR_sigsuspend 2943 case TARGET_NR_sigsuspend: 2944 { 2945 sigset_t set; 2946 p = lock_user(arg1, sizeof(target_sigset_t), 1); 2947 target_to_host_old_sigset(&set, p); 2948 unlock_user(p, arg1, 0); 2949 ret = get_errno(sigsuspend(&set)); 2950 } 2951 break; 2952 #endif 2953 case TARGET_NR_rt_sigsuspend: 2954 { 2955 sigset_t set; 2956 p = lock_user(arg1, sizeof(target_sigset_t), 1); 2957 target_to_host_sigset(&set, p); 2958 unlock_user(p, arg1, 0); 2959 ret = get_errno(sigsuspend(&set)); 2960 } 2961 break; 2962 case TARGET_NR_rt_sigtimedwait: 2963 { 2964 sigset_t set; 2965 struct timespec uts, *puts; 2966 siginfo_t uinfo; 2967 2968 p = lock_user(arg1, sizeof(target_sigset_t), 1); 2969 target_to_host_sigset(&set, p); 2970 unlock_user(p, arg1, 0); 2971 if (arg3) { 2972 puts = &uts; 2973 target_to_host_timespec(puts, arg3); 2974 } else { 2975 puts = NULL; 2976 } 2977 ret = get_errno(sigtimedwait(&set, &uinfo, puts)); 2978 if (!is_error(ret) && arg2) { 2979 p = lock_user(arg2, sizeof(target_sigset_t), 0); 2980 host_to_target_siginfo(p, &uinfo); 2981 unlock_user(p, arg2, sizeof(target_sigset_t)); 2982 } 2983 } 2984 break; 2985 case TARGET_NR_rt_sigqueueinfo: 2986 { 2987 siginfo_t uinfo; 2988 p = lock_user(arg3, sizeof(target_sigset_t), 1); 2989 target_to_host_siginfo(&uinfo, p); 2990 unlock_user(p, arg1, 0); 2991 ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo)); 2992 } 2993 break; 2994 #ifdef TARGET_NR_sigreturn 2995 case TARGET_NR_sigreturn: 2996 /* NOTE: ret is eax, so not transcoding must be done */ 2997 ret = do_sigreturn(cpu_env); 2998 break; 2999 #endif 3000 case TARGET_NR_rt_sigreturn: 3001 /* NOTE: ret is eax, so not transcoding must be done */ 3002 ret = do_rt_sigreturn(cpu_env); 3003 break; 3004 case TARGET_NR_sethostname: 3005 p = lock_user_string(arg1); 3006 ret = get_errno(sethostname(p, arg2)); 3007 unlock_user(p, arg1, 0); 3008 break; 3009 case TARGET_NR_setrlimit: 3010 { 3011 /* XXX: convert resource ? */ 3012 int resource = arg1; 3013 struct target_rlimit *target_rlim; 3014 struct rlimit rlim; 3015 lock_user_struct(target_rlim, arg2, 1); 3016 rlim.rlim_cur = tswapl(target_rlim->rlim_cur); 3017 rlim.rlim_max = tswapl(target_rlim->rlim_max); 3018 unlock_user_struct(target_rlim, arg2, 0); 3019 ret = get_errno(setrlimit(resource, &rlim)); 3020 } 3021 break; 3022 case TARGET_NR_getrlimit: 3023 { 3024 /* XXX: convert resource ? */ 3025 int resource = arg1; 3026 struct target_rlimit *target_rlim; 3027 struct rlimit rlim; 3028 3029 ret = get_errno(getrlimit(resource, &rlim)); 3030 if (!is_error(ret)) { 3031 lock_user_struct(target_rlim, arg2, 0); 3032 rlim.rlim_cur = tswapl(target_rlim->rlim_cur); 3033 rlim.rlim_max = tswapl(target_rlim->rlim_max); 3034 unlock_user_struct(target_rlim, arg2, 1); 3035 } 3036 } 3037 break; 3038 case TARGET_NR_getrusage: 3039 { 3040 struct rusage rusage; 3041 ret = get_errno(getrusage(arg1, &rusage)); 3042 if (!is_error(ret)) { 3043 host_to_target_rusage(arg2, &rusage); 3044 } 3045 } 3046 break; 3047 case TARGET_NR_gettimeofday: 3048 { 3049 struct timeval tv; 3050 ret = get_errno(gettimeofday(&tv, NULL)); 3051 if (!is_error(ret)) { 3052 host_to_target_timeval(arg1, &tv); 3053 } 3054 } 3055 break; 3056 case TARGET_NR_settimeofday: 3057 { 3058 struct timeval tv; 3059 target_to_host_timeval(&tv, arg1); 3060 ret = get_errno(settimeofday(&tv, NULL)); 3061 } 3062 break; 3063 #ifdef TARGET_NR_select 3064 case TARGET_NR_select: 3065 { 3066 struct target_sel_arg_struct *sel; 3067 target_ulong inp, outp, exp, tvp; 3068 long nsel; 3069 3070 lock_user_struct(sel, arg1, 1); 3071 nsel = tswapl(sel->n); 3072 inp = tswapl(sel->inp); 3073 outp = tswapl(sel->outp); 3074 exp = tswapl(sel->exp); 3075 tvp = tswapl(sel->tvp); 3076 unlock_user_struct(sel, arg1, 0); 3077 ret = do_select(nsel, inp, outp, exp, tvp); 3078 } 3079 break; 3080 #endif 3081 case TARGET_NR_symlink: 3082 { 3083 void *p2; 3084 p = lock_user_string(arg1); 3085 p2 = lock_user_string(arg2); 3086 ret = get_errno(symlink(p, p2)); 3087 unlock_user(p2, arg2, 0); 3088 unlock_user(p, arg1, 0); 3089 } 3090 break; 3091 #ifdef TARGET_NR_oldlstat 3092 case TARGET_NR_oldlstat: 3093 goto unimplemented; 3094 #endif 3095 case TARGET_NR_readlink: 3096 { 3097 void *p2; 3098 p = lock_user_string(arg1); 3099 p2 = lock_user(arg2, arg3, 0); 3100 ret = get_errno(readlink(path(p), p2, arg3)); 3101 unlock_user(p2, arg2, ret); 3102 unlock_user(p, arg1, 0); 3103 } 3104 break; 3105 #ifdef TARGET_NR_uselib 3106 case TARGET_NR_uselib: 3107 goto unimplemented; 3108 #endif 3109 #ifdef TARGET_NR_swapon 3110 case TARGET_NR_swapon: 3111 p = lock_user_string(arg1); 3112 ret = get_errno(swapon(p, arg2)); 3113 unlock_user(p, arg1, 0); 3114 break; 3115 #endif 3116 case TARGET_NR_reboot: 3117 goto unimplemented; 3118 #ifdef TARGET_NR_readdir 3119 case TARGET_NR_readdir: 3120 goto unimplemented; 3121 #endif 3122 #ifdef TARGET_NR_mmap 3123 case TARGET_NR_mmap: 3124 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_M68K) 3125 { 3126 target_ulong *v; 3127 target_ulong v1, v2, v3, v4, v5, v6; 3128 v = lock_user(arg1, 6 * sizeof(target_ulong), 1); 3129 v1 = tswapl(v[0]); 3130 v2 = tswapl(v[1]); 3131 v3 = tswapl(v[2]); 3132 v4 = tswapl(v[3]); 3133 v5 = tswapl(v[4]); 3134 v6 = tswapl(v[5]); 3135 unlock_user(v, arg1, 0); 3136 ret = get_errno(target_mmap(v1, v2, v3, 3137 target_to_host_bitmask(v4, mmap_flags_tbl), 3138 v5, v6)); 3139 } 3140 #else 3141 ret = get_errno(target_mmap(arg1, arg2, arg3, 3142 target_to_host_bitmask(arg4, mmap_flags_tbl), 3143 arg5, 3144 arg6)); 3145 #endif 3146 break; 3147 #endif 3148 #ifdef TARGET_NR_mmap2 3149 case TARGET_NR_mmap2: 3150 #if defined(TARGET_SPARC) || defined(TARGET_MIPS) 3151 #define MMAP_SHIFT 12 3152 #else 3153 #define MMAP_SHIFT TARGET_PAGE_BITS 3154 #endif 3155 ret = get_errno(target_mmap(arg1, arg2, arg3, 3156 target_to_host_bitmask(arg4, mmap_flags_tbl), 3157 arg5, 3158 arg6 << MMAP_SHIFT)); 3159 break; 3160 #endif 3161 case TARGET_NR_munmap: 3162 ret = get_errno(target_munmap(arg1, arg2)); 3163 break; 3164 case TARGET_NR_mprotect: 3165 ret = get_errno(target_mprotect(arg1, arg2, arg3)); 3166 break; 3167 #ifdef TARGET_NR_mremap 3168 case TARGET_NR_mremap: 3169 ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5)); 3170 break; 3171 #endif 3172 /* ??? msync/mlock/munlock are broken for softmmu. */ 3173 #ifdef TARGET_NR_msync 3174 case TARGET_NR_msync: 3175 ret = get_errno(msync(g2h(arg1), arg2, arg3)); 3176 break; 3177 #endif 3178 #ifdef TARGET_NR_mlock 3179 case TARGET_NR_mlock: 3180 ret = get_errno(mlock(g2h(arg1), arg2)); 3181 break; 3182 #endif 3183 #ifdef TARGET_NR_munlock 3184 case TARGET_NR_munlock: 3185 ret = get_errno(munlock(g2h(arg1), arg2)); 3186 break; 3187 #endif 3188 #ifdef TARGET_NR_mlockall 3189 case TARGET_NR_mlockall: 3190 ret = get_errno(mlockall(arg1)); 3191 break; 3192 #endif 3193 #ifdef TARGET_NR_munlockall 3194 case TARGET_NR_munlockall: 3195 ret = get_errno(munlockall()); 3196 break; 3197 #endif 3198 case TARGET_NR_truncate: 3199 p = lock_user_string(arg1); 3200 ret = get_errno(truncate(p, arg2)); 3201 unlock_user(p, arg1, 0); 3202 break; 3203 case TARGET_NR_ftruncate: 3204 ret = get_errno(ftruncate(arg1, arg2)); 3205 break; 3206 case TARGET_NR_fchmod: 3207 ret = get_errno(fchmod(arg1, arg2)); 3208 break; 3209 case TARGET_NR_getpriority: 3210 ret = get_errno(getpriority(arg1, arg2)); 3211 break; 3212 case TARGET_NR_setpriority: 3213 ret = get_errno(setpriority(arg1, arg2, arg3)); 3214 break; 3215 #ifdef TARGET_NR_profil 3216 case TARGET_NR_profil: 3217 goto unimplemented; 3218 #endif 3219 case TARGET_NR_statfs: 3220 p = lock_user_string(arg1); 3221 ret = get_errno(statfs(path(p), &stfs)); 3222 unlock_user(p, arg1, 0); 3223 convert_statfs: 3224 if (!is_error(ret)) { 3225 struct target_statfs *target_stfs; 3226 3227 lock_user_struct(target_stfs, arg2, 0); 3228 /* ??? put_user is probably wrong. */ 3229 put_user(stfs.f_type, &target_stfs->f_type); 3230 put_user(stfs.f_bsize, &target_stfs->f_bsize); 3231 put_user(stfs.f_blocks, &target_stfs->f_blocks); 3232 put_user(stfs.f_bfree, &target_stfs->f_bfree); 3233 put_user(stfs.f_bavail, &target_stfs->f_bavail); 3234 put_user(stfs.f_files, &target_stfs->f_files); 3235 put_user(stfs.f_ffree, &target_stfs->f_ffree); 3236 put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid); 3237 put_user(stfs.f_namelen, &target_stfs->f_namelen); 3238 unlock_user_struct(target_stfs, arg2, 1); 3239 } 3240 break; 3241 case TARGET_NR_fstatfs: 3242 ret = get_errno(fstatfs(arg1, &stfs)); 3243 goto convert_statfs; 3244 #ifdef TARGET_NR_statfs64 3245 case TARGET_NR_statfs64: 3246 p = lock_user_string(arg1); 3247 ret = get_errno(statfs(path(p), &stfs)); 3248 unlock_user(p, arg1, 0); 3249 convert_statfs64: 3250 if (!is_error(ret)) { 3251 struct target_statfs64 *target_stfs; 3252 3253 lock_user_struct(target_stfs, arg3, 0); 3254 /* ??? put_user is probably wrong. */ 3255 put_user(stfs.f_type, &target_stfs->f_type); 3256 put_user(stfs.f_bsize, &target_stfs->f_bsize); 3257 put_user(stfs.f_blocks, &target_stfs->f_blocks); 3258 put_user(stfs.f_bfree, &target_stfs->f_bfree); 3259 put_user(stfs.f_bavail, &target_stfs->f_bavail); 3260 put_user(stfs.f_files, &target_stfs->f_files); 3261 put_user(stfs.f_ffree, &target_stfs->f_ffree); 3262 put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid); 3263 put_user(stfs.f_namelen, &target_stfs->f_namelen); 3264 unlock_user_struct(target_stfs, arg3, 0); 3265 } 3266 break; 3267 case TARGET_NR_fstatfs64: 3268 ret = get_errno(fstatfs(arg1, &stfs)); 3269 goto convert_statfs64; 3270 #endif 3271 #ifdef TARGET_NR_ioperm 3272 case TARGET_NR_ioperm: 3273 goto unimplemented; 3274 #endif 3275 #ifdef TARGET_NR_socketcall 3276 case TARGET_NR_socketcall: 3277 ret = do_socketcall(arg1, arg2); 3278 break; 3279 #endif 3280 #ifdef TARGET_NR_accept 3281 case TARGET_NR_accept: 3282 ret = do_accept(arg1, arg2, arg3); 3283 break; 3284 #endif 3285 #ifdef TARGET_NR_bind 3286 case TARGET_NR_bind: 3287 ret = do_bind(arg1, arg2, arg3); 3288 break; 3289 #endif 3290 #ifdef TARGET_NR_connect 3291 case TARGET_NR_connect: 3292 ret = do_connect(arg1, arg2, arg3); 3293 break; 3294 #endif 3295 #ifdef TARGET_NR_getpeername 3296 case TARGET_NR_getpeername: 3297 ret = do_getpeername(arg1, arg2, arg3); 3298 break; 3299 #endif 3300 #ifdef TARGET_NR_getsockname 3301 case TARGET_NR_getsockname: 3302 ret = do_getsockname(arg1, arg2, arg3); 3303 break; 3304 #endif 3305 #ifdef TARGET_NR_getsockopt 3306 case TARGET_NR_getsockopt: 3307 ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5); 3308 break; 3309 #endif 3310 #ifdef TARGET_NR_listen 3311 case TARGET_NR_listen: 3312 ret = get_errno(listen(arg1, arg2)); 3313 break; 3314 #endif 3315 #ifdef TARGET_NR_recv 3316 case TARGET_NR_recv: 3317 ret = do_recvfrom(arg1, arg2, arg3, arg4, 0, 0); 3318 break; 3319 #endif 3320 #ifdef TARGET_NR_recvfrom 3321 case TARGET_NR_recvfrom: 3322 ret = do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6); 3323 break; 3324 #endif 3325 #ifdef TARGET_NR_recvmsg 3326 case TARGET_NR_recvmsg: 3327 ret = do_sendrecvmsg(arg1, arg2, arg3, 0); 3328 break; 3329 #endif 3330 #ifdef TARGET_NR_send 3331 case TARGET_NR_send: 3332 ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0); 3333 break; 3334 #endif 3335 #ifdef TARGET_NR_sendmsg 3336 case TARGET_NR_sendmsg: 3337 ret = do_sendrecvmsg(arg1, arg2, arg3, 1); 3338 break; 3339 #endif 3340 #ifdef TARGET_NR_sendto 3341 case TARGET_NR_sendto: 3342 ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6); 3343 break; 3344 #endif 3345 #ifdef TARGET_NR_shutdown 3346 case TARGET_NR_shutdown: 3347 ret = get_errno(shutdown(arg1, arg2)); 3348 break; 3349 #endif 3350 #ifdef TARGET_NR_socket 3351 case TARGET_NR_socket: 3352 ret = do_socket(arg1, arg2, arg3); 3353 break; 3354 #endif 3355 #ifdef TARGET_NR_socketpair 3356 case TARGET_NR_socketpair: 3357 ret = do_socketpair(arg1, arg2, arg3, arg4); 3358 break; 3359 #endif 3360 #ifdef TARGET_NR_setsockopt 3361 case TARGET_NR_setsockopt: 3362 ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5); 3363 break; 3364 #endif 3365 3366 case TARGET_NR_syslog: 3367 p = lock_user_string(arg2); 3368 ret = get_errno(sys_syslog((int)arg1, p, (int)arg3)); 3369 unlock_user(p, arg2, 0); 3370 break; 3371 3372 case TARGET_NR_setitimer: 3373 { 3374 struct itimerval value, ovalue, *pvalue; 3375 3376 if (arg2) { 3377 pvalue = &value; 3378 target_to_host_timeval(&pvalue->it_interval, 3379 arg2); 3380 target_to_host_timeval(&pvalue->it_value, 3381 arg2 + sizeof(struct target_timeval)); 3382 } else { 3383 pvalue = NULL; 3384 } 3385 ret = get_errno(setitimer(arg1, pvalue, &ovalue)); 3386 if (!is_error(ret) && arg3) { 3387 host_to_target_timeval(arg3, 3388 &ovalue.it_interval); 3389 host_to_target_timeval(arg3 + sizeof(struct target_timeval), 3390 &ovalue.it_value); 3391 } 3392 } 3393 break; 3394 case TARGET_NR_getitimer: 3395 { 3396 struct itimerval value; 3397 3398 ret = get_errno(getitimer(arg1, &value)); 3399 if (!is_error(ret) && arg2) { 3400 host_to_target_timeval(arg2, 3401 &value.it_interval); 3402 host_to_target_timeval(arg2 + sizeof(struct target_timeval), 3403 &value.it_value); 3404 } 3405 } 3406 break; 3407 case TARGET_NR_stat: 3408 p = lock_user_string(arg1); 3409 ret = get_errno(stat(path(p), &st)); 3410 unlock_user(p, arg1, 0); 3411 goto do_stat; 3412 case TARGET_NR_lstat: 3413 p = lock_user_string(arg1); 3414 ret = get_errno(lstat(path(p), &st)); 3415 unlock_user(p, arg1, 0); 3416 goto do_stat; 3417 case TARGET_NR_fstat: 3418 { 3419 ret = get_errno(fstat(arg1, &st)); 3420 do_stat: 3421 if (!is_error(ret)) { 3422 struct target_stat *target_st; 3423 3424 lock_user_struct(target_st, arg2, 0); 3425 #if defined(TARGET_MIPS) 3426 target_st->st_dev = tswap32(st.st_dev); 3427 #else 3428 target_st->st_dev = tswap16(st.st_dev); 3429 #endif 3430 target_st->st_ino = tswapl(st.st_ino); 3431 #if defined(TARGET_PPC) || defined(TARGET_MIPS) 3432 target_st->st_mode = tswapl(st.st_mode); /* XXX: check this */ 3433 target_st->st_uid = tswap32(st.st_uid); 3434 target_st->st_gid = tswap32(st.st_gid); 3435 #else 3436 target_st->st_mode = tswap16(st.st_mode); 3437 target_st->st_uid = tswap16(st.st_uid); 3438 target_st->st_gid = tswap16(st.st_gid); 3439 #endif 3440 #if defined(TARGET_MIPS) 3441 /* If this is the same on PPC, then just merge w/ the above ifdef */ 3442 target_st->st_nlink = tswapl(st.st_nlink); 3443 target_st->st_rdev = tswapl(st.st_rdev); 3444 #else 3445 target_st->st_nlink = tswap16(st.st_nlink); 3446 target_st->st_rdev = tswap16(st.st_rdev); 3447 #endif 3448 target_st->st_size = tswapl(st.st_size); 3449 target_st->st_blksize = tswapl(st.st_blksize); 3450 target_st->st_blocks = tswapl(st.st_blocks); 3451 target_st->target_st_atime = tswapl(st.st_atime); 3452 target_st->target_st_mtime = tswapl(st.st_mtime); 3453 target_st->target_st_ctime = tswapl(st.st_ctime); 3454 unlock_user_struct(target_st, arg2, 1); 3455 } 3456 } 3457 break; 3458 #ifdef TARGET_NR_olduname 3459 case TARGET_NR_olduname: 3460 goto unimplemented; 3461 #endif 3462 #ifdef TARGET_NR_iopl 3463 case TARGET_NR_iopl: 3464 goto unimplemented; 3465 #endif 3466 case TARGET_NR_vhangup: 3467 ret = get_errno(vhangup()); 3468 break; 3469 #ifdef TARGET_NR_idle 3470 case TARGET_NR_idle: 3471 goto unimplemented; 3472 #endif 3473 #ifdef TARGET_NR_syscall 3474 case TARGET_NR_syscall: 3475 ret = do_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,0); 3476 break; 3477 #endif 3478 case TARGET_NR_wait4: 3479 { 3480 int status; 3481 target_long status_ptr = arg2; 3482 struct rusage rusage, *rusage_ptr; 3483 target_ulong target_rusage = arg4; 3484 if (target_rusage) 3485 rusage_ptr = &rusage; 3486 else 3487 rusage_ptr = NULL; 3488 ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr)); 3489 if (!is_error(ret)) { 3490 if (status_ptr) 3491 tputl(status_ptr, status); 3492 if (target_rusage) { 3493 host_to_target_rusage(target_rusage, &rusage); 3494 } 3495 } 3496 } 3497 break; 3498 #ifdef TARGET_NR_swapoff 3499 case TARGET_NR_swapoff: 3500 p = lock_user_string(arg1); 3501 ret = get_errno(swapoff(p)); 3502 unlock_user(p, arg1, 0); 3503 break; 3504 #endif 3505 case TARGET_NR_sysinfo: 3506 { 3507 struct target_sysinfo *target_value; 3508 struct sysinfo value; 3509 ret = get_errno(sysinfo(&value)); 3510 if (!is_error(ret) && arg1) 3511 { 3512 /* ??? __put_user is probably wrong. */ 3513 lock_user_struct(target_value, arg1, 0); 3514 __put_user(value.uptime, &target_value->uptime); 3515 __put_user(value.loads[0], &target_value->loads[0]); 3516 __put_user(value.loads[1], &target_value->loads[1]); 3517 __put_user(value.loads[2], &target_value->loads[2]); 3518 __put_user(value.totalram, &target_value->totalram); 3519 __put_user(value.freeram, &target_value->freeram); 3520 __put_user(value.sharedram, &target_value->sharedram); 3521 __put_user(value.bufferram, &target_value->bufferram); 3522 __put_user(value.totalswap, &target_value->totalswap); 3523 __put_user(value.freeswap, &target_value->freeswap); 3524 __put_user(value.procs, &target_value->procs); 3525 __put_user(value.totalhigh, &target_value->totalhigh); 3526 __put_user(value.freehigh, &target_value->freehigh); 3527 __put_user(value.mem_unit, &target_value->mem_unit); 3528 unlock_user_struct(target_value, arg1, 1); 3529 } 3530 } 3531 break; 3532 #ifdef TARGET_NR_ipc 3533 case TARGET_NR_ipc: 3534 ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6); 3535 break; 3536 #endif 3537 case TARGET_NR_fsync: 3538 ret = get_errno(fsync(arg1)); 3539 break; 3540 case TARGET_NR_clone: 3541 ret = get_errno(do_fork(cpu_env, arg1, arg2)); 3542 break; 3543 #ifdef __NR_exit_group 3544 /* new thread calls */ 3545 case TARGET_NR_exit_group: 3546 gdb_exit(cpu_env, arg1); 3547 ret = get_errno(exit_group(arg1)); 3548 break; 3549 #endif 3550 case TARGET_NR_setdomainname: 3551 p = lock_user_string(arg1); 3552 ret = get_errno(setdomainname(p, arg2)); 3553 unlock_user(p, arg1, 0); 3554 break; 3555 case TARGET_NR_uname: 3556 /* no need to transcode because we use the linux syscall */ 3557 { 3558 struct new_utsname * buf; 3559 3560 lock_user_struct(buf, arg1, 0); 3561 ret = get_errno(sys_uname(buf)); 3562 if (!is_error(ret)) { 3563 /* Overrite the native machine name with whatever is being 3564 emulated. */ 3565 strcpy (buf->machine, UNAME_MACHINE); 3566 /* Allow the user to override the reported release. */ 3567 if (qemu_uname_release && *qemu_uname_release) 3568 strcpy (buf->release, qemu_uname_release); 3569 } 3570 unlock_user_struct(buf, arg1, 1); 3571 } 3572 break; 3573 #ifdef TARGET_I386 3574 case TARGET_NR_modify_ldt: 3575 ret = get_errno(do_modify_ldt(cpu_env, arg1, arg2, arg3)); 3576 break; 3577 #if !defined(TARGET_X86_64) 3578 case TARGET_NR_vm86old: 3579 goto unimplemented; 3580 case TARGET_NR_vm86: 3581 ret = do_vm86(cpu_env, arg1, arg2); 3582 break; 3583 #endif 3584 #endif 3585 case TARGET_NR_adjtimex: 3586 goto unimplemented; 3587 #ifdef TARGET_NR_create_module 3588 case TARGET_NR_create_module: 3589 #endif 3590 case TARGET_NR_init_module: 3591 case TARGET_NR_delete_module: 3592 #ifdef TARGET_NR_get_kernel_syms 3593 case TARGET_NR_get_kernel_syms: 3594 #endif 3595 goto unimplemented; 3596 case TARGET_NR_quotactl: 3597 goto unimplemented; 3598 case TARGET_NR_getpgid: 3599 ret = get_errno(getpgid(arg1)); 3600 break; 3601 case TARGET_NR_fchdir: 3602 ret = get_errno(fchdir(arg1)); 3603 break; 3604 #ifdef TARGET_NR_bdflush /* not on x86_64 */ 3605 case TARGET_NR_bdflush: 3606 goto unimplemented; 3607 #endif 3608 #ifdef TARGET_NR_sysfs 3609 case TARGET_NR_sysfs: 3610 goto unimplemented; 3611 #endif 3612 case TARGET_NR_personality: 3613 ret = get_errno(personality(arg1)); 3614 break; 3615 #ifdef TARGET_NR_afs_syscall 3616 case TARGET_NR_afs_syscall: 3617 goto unimplemented; 3618 #endif 3619 #ifdef TARGET_NR__llseek /* Not on alpha */ 3620 case TARGET_NR__llseek: 3621 { 3622 #if defined (__x86_64__) 3623 ret = get_errno(lseek(arg1, ((uint64_t )arg2 << 32) | arg3, arg5)); 3624 tput64(arg4, ret); 3625 #else 3626 int64_t res; 3627 ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5)); 3628 tput64(arg4, res); 3629 #endif 3630 } 3631 break; 3632 #endif 3633 case TARGET_NR_getdents: 3634 #if TARGET_LONG_SIZE != 4 3635 goto unimplemented; 3636 #warning not supported 3637 #elif TARGET_LONG_SIZE == 4 && HOST_LONG_SIZE == 8 3638 { 3639 struct target_dirent *target_dirp; 3640 struct dirent *dirp; 3641 long count = arg3; 3642 3643 dirp = malloc(count); 3644 if (!dirp) 3645 return -ENOMEM; 3646 3647 ret = get_errno(sys_getdents(arg1, dirp, count)); 3648 if (!is_error(ret)) { 3649 struct dirent *de; 3650 struct target_dirent *tde; 3651 int len = ret; 3652 int reclen, treclen; 3653 int count1, tnamelen; 3654 3655 count1 = 0; 3656 de = dirp; 3657 target_dirp = lock_user(arg2, count, 0); 3658 tde = target_dirp; 3659 while (len > 0) { 3660 reclen = de->d_reclen; 3661 treclen = reclen - (2 * (sizeof(long) - sizeof(target_long))); 3662 tde->d_reclen = tswap16(treclen); 3663 tde->d_ino = tswapl(de->d_ino); 3664 tde->d_off = tswapl(de->d_off); 3665 tnamelen = treclen - (2 * sizeof(target_long) + 2); 3666 if (tnamelen > 256) 3667 tnamelen = 256; 3668 /* XXX: may not be correct */ 3669 strncpy(tde->d_name, de->d_name, tnamelen); 3670 de = (struct dirent *)((char *)de + reclen); 3671 len -= reclen; 3672 tde = (struct target_dirent *)((char *)tde + treclen); 3673 count1 += treclen; 3674 } 3675 ret = count1; 3676 } 3677 unlock_user(target_dirp, arg2, ret); 3678 free(dirp); 3679 } 3680 #else 3681 { 3682 struct dirent *dirp; 3683 long count = arg3; 3684 3685 dirp = lock_user(arg2, count, 0); 3686 ret = get_errno(sys_getdents(arg1, dirp, count)); 3687 if (!is_error(ret)) { 3688 struct dirent *de; 3689 int len = ret; 3690 int reclen; 3691 de = dirp; 3692 while (len > 0) { 3693 reclen = de->d_reclen; 3694 if (reclen > len) 3695 break; 3696 de->d_reclen = tswap16(reclen); 3697 tswapls(&de->d_ino); 3698 tswapls(&de->d_off); 3699 de = (struct dirent *)((char *)de + reclen); 3700 len -= reclen; 3701 } 3702 } 3703 unlock_user(dirp, arg2, ret); 3704 } 3705 #endif 3706 break; 3707 #ifdef TARGET_NR_getdents64 3708 case TARGET_NR_getdents64: 3709 { 3710 struct dirent64 *dirp; 3711 long count = arg3; 3712 dirp = lock_user(arg2, count, 0); 3713 ret = get_errno(sys_getdents64(arg1, dirp, count)); 3714 if (!is_error(ret)) { 3715 struct dirent64 *de; 3716 int len = ret; 3717 int reclen; 3718 de = dirp; 3719 while (len > 0) { 3720 reclen = de->d_reclen; 3721 if (reclen > len) 3722 break; 3723 de->d_reclen = tswap16(reclen); 3724 tswap64s(&de->d_ino); 3725 tswap64s(&de->d_off); 3726 de = (struct dirent64 *)((char *)de + reclen); 3727 len -= reclen; 3728 } 3729 } 3730 unlock_user(dirp, arg2, ret); 3731 } 3732 break; 3733 #endif /* TARGET_NR_getdents64 */ 3734 #ifdef TARGET_NR__newselect 3735 case TARGET_NR__newselect: 3736 ret = do_select(arg1, arg2, arg3, arg4, arg5); 3737 break; 3738 #endif 3739 #ifdef TARGET_NR_poll 3740 case TARGET_NR_poll: 3741 { 3742 struct target_pollfd *target_pfd; 3743 unsigned int nfds = arg2; 3744 int timeout = arg3; 3745 struct pollfd *pfd; 3746 unsigned int i; 3747 3748 target_pfd = lock_user(arg1, sizeof(struct target_pollfd) * nfds, 1); 3749 pfd = alloca(sizeof(struct pollfd) * nfds); 3750 for(i = 0; i < nfds; i++) { 3751 pfd[i].fd = tswap32(target_pfd[i].fd); 3752 pfd[i].events = tswap16(target_pfd[i].events); 3753 } 3754 ret = get_errno(poll(pfd, nfds, timeout)); 3755 if (!is_error(ret)) { 3756 for(i = 0; i < nfds; i++) { 3757 target_pfd[i].revents = tswap16(pfd[i].revents); 3758 } 3759 ret += nfds * (sizeof(struct target_pollfd) 3760 - sizeof(struct pollfd)); 3761 } 3762 unlock_user(target_pfd, arg1, ret); 3763 } 3764 break; 3765 #endif 3766 case TARGET_NR_flock: 3767 /* NOTE: the flock constant seems to be the same for every 3768 Linux platform */ 3769 ret = get_errno(flock(arg1, arg2)); 3770 break; 3771 case TARGET_NR_readv: 3772 { 3773 int count = arg3; 3774 struct iovec *vec; 3775 3776 vec = alloca(count * sizeof(struct iovec)); 3777 lock_iovec(vec, arg2, count, 0); 3778 ret = get_errno(readv(arg1, vec, count)); 3779 unlock_iovec(vec, arg2, count, 1); 3780 } 3781 break; 3782 case TARGET_NR_writev: 3783 { 3784 int count = arg3; 3785 struct iovec *vec; 3786 3787 vec = alloca(count * sizeof(struct iovec)); 3788 lock_iovec(vec, arg2, count, 1); 3789 ret = get_errno(writev(arg1, vec, count)); 3790 unlock_iovec(vec, arg2, count, 0); 3791 } 3792 break; 3793 case TARGET_NR_getsid: 3794 ret = get_errno(getsid(arg1)); 3795 break; 3796 #if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */ 3797 case TARGET_NR_fdatasync: 3798 ret = get_errno(fdatasync(arg1)); 3799 break; 3800 #endif 3801 case TARGET_NR__sysctl: 3802 /* We don't implement this, but ENODIR is always a safe 3803 return value. */ 3804 return -ENOTDIR; 3805 case TARGET_NR_sched_setparam: 3806 { 3807 struct sched_param *target_schp; 3808 struct sched_param schp; 3809 3810 lock_user_struct(target_schp, arg2, 1); 3811 schp.sched_priority = tswap32(target_schp->sched_priority); 3812 unlock_user_struct(target_schp, arg2, 0); 3813 ret = get_errno(sched_setparam(arg1, &schp)); 3814 } 3815 break; 3816 case TARGET_NR_sched_getparam: 3817 { 3818 struct sched_param *target_schp; 3819 struct sched_param schp; 3820 ret = get_errno(sched_getparam(arg1, &schp)); 3821 if (!is_error(ret)) { 3822 lock_user_struct(target_schp, arg2, 0); 3823 target_schp->sched_priority = tswap32(schp.sched_priority); 3824 unlock_user_struct(target_schp, arg2, 1); 3825 } 3826 } 3827 break; 3828 case TARGET_NR_sched_setscheduler: 3829 { 3830 struct sched_param *target_schp; 3831 struct sched_param schp; 3832 lock_user_struct(target_schp, arg3, 1); 3833 schp.sched_priority = tswap32(target_schp->sched_priority); 3834 unlock_user_struct(target_schp, arg3, 0); 3835 ret = get_errno(sched_setscheduler(arg1, arg2, &schp)); 3836 } 3837 break; 3838 case TARGET_NR_sched_getscheduler: 3839 ret = get_errno(sched_getscheduler(arg1)); 3840 break; 3841 case TARGET_NR_sched_yield: 3842 ret = get_errno(sched_yield()); 3843 break; 3844 case TARGET_NR_sched_get_priority_max: 3845 ret = get_errno(sched_get_priority_max(arg1)); 3846 break; 3847 case TARGET_NR_sched_get_priority_min: 3848 ret = get_errno(sched_get_priority_min(arg1)); 3849 break; 3850 case TARGET_NR_sched_rr_get_interval: 3851 { 3852 struct timespec ts; 3853 ret = get_errno(sched_rr_get_interval(arg1, &ts)); 3854 if (!is_error(ret)) { 3855 host_to_target_timespec(arg2, &ts); 3856 } 3857 } 3858 break; 3859 case TARGET_NR_nanosleep: 3860 { 3861 struct timespec req, rem; 3862 target_to_host_timespec(&req, arg1); 3863 ret = get_errno(nanosleep(&req, &rem)); 3864 if (is_error(ret) && arg2) { 3865 host_to_target_timespec(arg2, &rem); 3866 } 3867 } 3868 break; 3869 #ifdef TARGET_NR_query_module 3870 case TARGET_NR_query_module: 3871 goto unimplemented; 3872 #endif 3873 #ifdef TARGET_NR_nfsservctl 3874 case TARGET_NR_nfsservctl: 3875 goto unimplemented; 3876 #endif 3877 case TARGET_NR_prctl: 3878 switch (arg1) 3879 { 3880 case PR_GET_PDEATHSIG: 3881 { 3882 int deathsig; 3883 ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5)); 3884 if (!is_error(ret) && arg2) 3885 tput32(arg2, deathsig); 3886 } 3887 break; 3888 default: 3889 ret = get_errno(prctl(arg1, arg2, arg3, arg4, arg5)); 3890 break; 3891 } 3892 break; 3893 #ifdef TARGET_NR_pread 3894 case TARGET_NR_pread: 3895 page_unprotect_range(arg2, arg3); 3896 p = lock_user(arg2, arg3, 0); 3897 ret = get_errno(pread(arg1, p, arg3, arg4)); 3898 unlock_user(p, arg2, ret); 3899 break; 3900 case TARGET_NR_pwrite: 3901 p = lock_user(arg2, arg3, 1); 3902 ret = get_errno(pwrite(arg1, p, arg3, arg4)); 3903 unlock_user(p, arg2, 0); 3904 break; 3905 #endif 3906 case TARGET_NR_getcwd: 3907 p = lock_user(arg1, arg2, 0); 3908 ret = get_errno(sys_getcwd1(p, arg2)); 3909 unlock_user(p, arg1, ret); 3910 break; 3911 case TARGET_NR_capget: 3912 goto unimplemented; 3913 case TARGET_NR_capset: 3914 goto unimplemented; 3915 case TARGET_NR_sigaltstack: 3916 goto unimplemented; 3917 case TARGET_NR_sendfile: 3918 goto unimplemented; 3919 #ifdef TARGET_NR_getpmsg 3920 case TARGET_NR_getpmsg: 3921 goto unimplemented; 3922 #endif 3923 #ifdef TARGET_NR_putpmsg 3924 case TARGET_NR_putpmsg: 3925 goto unimplemented; 3926 #endif 3927 #ifdef TARGET_NR_vfork 3928 case TARGET_NR_vfork: 3929 ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0)); 3930 break; 3931 #endif 3932 #ifdef TARGET_NR_ugetrlimit 3933 case TARGET_NR_ugetrlimit: 3934 { 3935 struct rlimit rlim; 3936 ret = get_errno(getrlimit(arg1, &rlim)); 3937 if (!is_error(ret)) { 3938 struct target_rlimit *target_rlim; 3939 lock_user_struct(target_rlim, arg2, 0); 3940 target_rlim->rlim_cur = tswapl(rlim.rlim_cur); 3941 target_rlim->rlim_max = tswapl(rlim.rlim_max); 3942 unlock_user_struct(target_rlim, arg2, 1); 3943 } 3944 break; 3945 } 3946 #endif 3947 #ifdef TARGET_NR_truncate64 3948 case TARGET_NR_truncate64: 3949 p = lock_user_string(arg1); 3950 ret = target_truncate64(cpu_env, p, arg2, arg3, arg4); 3951 unlock_user(p, arg1, 0); 3952 break; 3953 #endif 3954 #ifdef TARGET_NR_ftruncate64 3955 case TARGET_NR_ftruncate64: 3956 ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4); 3957 break; 3958 #endif 3959 #ifdef TARGET_NR_stat64 3960 case TARGET_NR_stat64: 3961 p = lock_user_string(arg1); 3962 ret = get_errno(stat(path(p), &st)); 3963 unlock_user(p, arg1, 0); 3964 goto do_stat64; 3965 #endif 3966 #ifdef TARGET_NR_lstat64 3967 case TARGET_NR_lstat64: 3968 p = lock_user_string(arg1); 3969 ret = get_errno(lstat(path(p), &st)); 3970 unlock_user(p, arg1, 0); 3971 goto do_stat64; 3972 #endif 3973 #ifdef TARGET_NR_fstat64 3974 case TARGET_NR_fstat64: 3975 { 3976 ret = get_errno(fstat(arg1, &st)); 3977 do_stat64: 3978 if (!is_error(ret)) { 3979 #ifdef TARGET_ARM 3980 if (((CPUARMState *)cpu_env)->eabi) { 3981 struct target_eabi_stat64 *target_st; 3982 lock_user_struct(target_st, arg2, 1); 3983 memset(target_st, 0, sizeof(struct target_eabi_stat64)); 3984 /* put_user is probably wrong. */ 3985 put_user(st.st_dev, &target_st->st_dev); 3986 put_user(st.st_ino, &target_st->st_ino); 3987 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO 3988 put_user(st.st_ino, &target_st->__st_ino); 3989 #endif 3990 put_user(st.st_mode, &target_st->st_mode); 3991 put_user(st.st_nlink, &target_st->st_nlink); 3992 put_user(st.st_uid, &target_st->st_uid); 3993 put_user(st.st_gid, &target_st->st_gid); 3994 put_user(st.st_rdev, &target_st->st_rdev); 3995 /* XXX: better use of kernel struct */ 3996 put_user(st.st_size, &target_st->st_size); 3997 put_user(st.st_blksize, &target_st->st_blksize); 3998 put_user(st.st_blocks, &target_st->st_blocks); 3999 put_user(st.st_atime, &target_st->target_st_atime); 4000 put_user(st.st_mtime, &target_st->target_st_mtime); 4001 put_user(st.st_ctime, &target_st->target_st_ctime); 4002 unlock_user_struct(target_st, arg2, 0); 4003 } else 4004 #endif 4005 { 4006 struct target_stat64 *target_st; 4007 lock_user_struct(target_st, arg2, 1); 4008 memset(target_st, 0, sizeof(struct target_stat64)); 4009 /* ??? put_user is probably wrong. */ 4010 put_user(st.st_dev, &target_st->st_dev); 4011 put_user(st.st_ino, &target_st->st_ino); 4012 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO 4013 put_user(st.st_ino, &target_st->__st_ino); 4014 #endif 4015 put_user(st.st_mode, &target_st->st_mode); 4016 put_user(st.st_nlink, &target_st->st_nlink); 4017 put_user(st.st_uid, &target_st->st_uid); 4018 put_user(st.st_gid, &target_st->st_gid); 4019 put_user(st.st_rdev, &target_st->st_rdev); 4020 /* XXX: better use of kernel struct */ 4021 put_user(st.st_size, &target_st->st_size); 4022 put_user(st.st_blksize, &target_st->st_blksize); 4023 put_user(st.st_blocks, &target_st->st_blocks); 4024 put_user(st.st_atime, &target_st->target_st_atime); 4025 put_user(st.st_mtime, &target_st->target_st_mtime); 4026 put_user(st.st_ctime, &target_st->target_st_ctime); 4027 unlock_user_struct(target_st, arg2, 0); 4028 } 4029 } 4030 } 4031 break; 4032 #endif 4033 #ifdef USE_UID16 4034 case TARGET_NR_lchown: 4035 p = lock_user_string(arg1); 4036 ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3))); 4037 unlock_user(p, arg1, 0); 4038 break; 4039 case TARGET_NR_getuid: 4040 ret = get_errno(high2lowuid(getuid())); 4041 break; 4042 case TARGET_NR_getgid: 4043 ret = get_errno(high2lowgid(getgid())); 4044 break; 4045 case TARGET_NR_geteuid: 4046 ret = get_errno(high2lowuid(geteuid())); 4047 break; 4048 case TARGET_NR_getegid: 4049 ret = get_errno(high2lowgid(getegid())); 4050 break; 4051 case TARGET_NR_setreuid: 4052 ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2))); 4053 break; 4054 case TARGET_NR_setregid: 4055 ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2))); 4056 break; 4057 case TARGET_NR_getgroups: 4058 { 4059 int gidsetsize = arg1; 4060 uint16_t *target_grouplist; 4061 gid_t *grouplist; 4062 int i; 4063 4064 grouplist = alloca(gidsetsize * sizeof(gid_t)); 4065 ret = get_errno(getgroups(gidsetsize, grouplist)); 4066 if (!is_error(ret)) { 4067 target_grouplist = lock_user(arg2, gidsetsize * 2, 0); 4068 for(i = 0;i < gidsetsize; i++) 4069 target_grouplist[i] = tswap16(grouplist[i]); 4070 unlock_user(target_grouplist, arg2, gidsetsize * 2); 4071 } 4072 } 4073 break; 4074 case TARGET_NR_setgroups: 4075 { 4076 int gidsetsize = arg1; 4077 uint16_t *target_grouplist; 4078 gid_t *grouplist; 4079 int i; 4080 4081 grouplist = alloca(gidsetsize * sizeof(gid_t)); 4082 target_grouplist = lock_user(arg2, gidsetsize * 2, 1); 4083 for(i = 0;i < gidsetsize; i++) 4084 grouplist[i] = tswap16(target_grouplist[i]); 4085 unlock_user(target_grouplist, arg2, 0); 4086 ret = get_errno(setgroups(gidsetsize, grouplist)); 4087 } 4088 break; 4089 case TARGET_NR_fchown: 4090 ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3))); 4091 break; 4092 #ifdef TARGET_NR_setresuid 4093 case TARGET_NR_setresuid: 4094 ret = get_errno(setresuid(low2highuid(arg1), 4095 low2highuid(arg2), 4096 low2highuid(arg3))); 4097 break; 4098 #endif 4099 #ifdef TARGET_NR_getresuid 4100 case TARGET_NR_getresuid: 4101 { 4102 uid_t ruid, euid, suid; 4103 ret = get_errno(getresuid(&ruid, &euid, &suid)); 4104 if (!is_error(ret)) { 4105 tput16(arg1, tswap16(high2lowuid(ruid))); 4106 tput16(arg2, tswap16(high2lowuid(euid))); 4107 tput16(arg3, tswap16(high2lowuid(suid))); 4108 } 4109 } 4110 break; 4111 #endif 4112 #ifdef TARGET_NR_getresgid 4113 case TARGET_NR_setresgid: 4114 ret = get_errno(setresgid(low2highgid(arg1), 4115 low2highgid(arg2), 4116 low2highgid(arg3))); 4117 break; 4118 #endif 4119 #ifdef TARGET_NR_getresgid 4120 case TARGET_NR_getresgid: 4121 { 4122 gid_t rgid, egid, sgid; 4123 ret = get_errno(getresgid(&rgid, &egid, &sgid)); 4124 if (!is_error(ret)) { 4125 tput16(arg1, tswap16(high2lowgid(rgid))); 4126 tput16(arg2, tswap16(high2lowgid(egid))); 4127 tput16(arg3, tswap16(high2lowgid(sgid))); 4128 } 4129 } 4130 break; 4131 #endif 4132 case TARGET_NR_chown: 4133 p = lock_user_string(arg1); 4134 ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3))); 4135 unlock_user(p, arg1, 0); 4136 break; 4137 case TARGET_NR_setuid: 4138 ret = get_errno(setuid(low2highuid(arg1))); 4139 break; 4140 case TARGET_NR_setgid: 4141 ret = get_errno(setgid(low2highgid(arg1))); 4142 break; 4143 case TARGET_NR_setfsuid: 4144 ret = get_errno(setfsuid(arg1)); 4145 break; 4146 case TARGET_NR_setfsgid: 4147 ret = get_errno(setfsgid(arg1)); 4148 break; 4149 #endif /* USE_UID16 */ 4150 4151 #ifdef TARGET_NR_lchown32 4152 case TARGET_NR_lchown32: 4153 p = lock_user_string(arg1); 4154 ret = get_errno(lchown(p, arg2, arg3)); 4155 unlock_user(p, arg1, 0); 4156 break; 4157 #endif 4158 #ifdef TARGET_NR_getuid32 4159 case TARGET_NR_getuid32: 4160 ret = get_errno(getuid()); 4161 break; 4162 #endif 4163 #ifdef TARGET_NR_getgid32 4164 case TARGET_NR_getgid32: 4165 ret = get_errno(getgid()); 4166 break; 4167 #endif 4168 #ifdef TARGET_NR_geteuid32 4169 case TARGET_NR_geteuid32: 4170 ret = get_errno(geteuid()); 4171 break; 4172 #endif 4173 #ifdef TARGET_NR_getegid32 4174 case TARGET_NR_getegid32: 4175 ret = get_errno(getegid()); 4176 break; 4177 #endif 4178 #ifdef TARGET_NR_setreuid32 4179 case TARGET_NR_setreuid32: 4180 ret = get_errno(setreuid(arg1, arg2)); 4181 break; 4182 #endif 4183 #ifdef TARGET_NR_setregid32 4184 case TARGET_NR_setregid32: 4185 ret = get_errno(setregid(arg1, arg2)); 4186 break; 4187 #endif 4188 #ifdef TARGET_NR_getgroups32 4189 case TARGET_NR_getgroups32: 4190 { 4191 int gidsetsize = arg1; 4192 uint32_t *target_grouplist; 4193 gid_t *grouplist; 4194 int i; 4195 4196 grouplist = alloca(gidsetsize * sizeof(gid_t)); 4197 ret = get_errno(getgroups(gidsetsize, grouplist)); 4198 if (!is_error(ret)) { 4199 target_grouplist = lock_user(arg2, gidsetsize * 4, 0); 4200 for(i = 0;i < gidsetsize; i++) 4201 target_grouplist[i] = tswap32(grouplist[i]); 4202 unlock_user(target_grouplist, arg2, gidsetsize * 4); 4203 } 4204 } 4205 break; 4206 #endif 4207 #ifdef TARGET_NR_setgroups32 4208 case TARGET_NR_setgroups32: 4209 { 4210 int gidsetsize = arg1; 4211 uint32_t *target_grouplist; 4212 gid_t *grouplist; 4213 int i; 4214 4215 grouplist = alloca(gidsetsize * sizeof(gid_t)); 4216 target_grouplist = lock_user(arg2, gidsetsize * 4, 1); 4217 for(i = 0;i < gidsetsize; i++) 4218 grouplist[i] = tswap32(target_grouplist[i]); 4219 unlock_user(target_grouplist, arg2, 0); 4220 ret = get_errno(setgroups(gidsetsize, grouplist)); 4221 } 4222 break; 4223 #endif 4224 #ifdef TARGET_NR_fchown32 4225 case TARGET_NR_fchown32: 4226 ret = get_errno(fchown(arg1, arg2, arg3)); 4227 break; 4228 #endif 4229 #ifdef TARGET_NR_setresuid32 4230 case TARGET_NR_setresuid32: 4231 ret = get_errno(setresuid(arg1, arg2, arg3)); 4232 break; 4233 #endif 4234 #ifdef TARGET_NR_getresuid32 4235 case TARGET_NR_getresuid32: 4236 { 4237 uid_t ruid, euid, suid; 4238 ret = get_errno(getresuid(&ruid, &euid, &suid)); 4239 if (!is_error(ret)) { 4240 tput32(arg1, tswap32(ruid)); 4241 tput32(arg2, tswap32(euid)); 4242 tput32(arg3, tswap32(suid)); 4243 } 4244 } 4245 break; 4246 #endif 4247 #ifdef TARGET_NR_setresgid32 4248 case TARGET_NR_setresgid32: 4249 ret = get_errno(setresgid(arg1, arg2, arg3)); 4250 break; 4251 #endif 4252 #ifdef TARGET_NR_getresgid32 4253 case TARGET_NR_getresgid32: 4254 { 4255 gid_t rgid, egid, sgid; 4256 ret = get_errno(getresgid(&rgid, &egid, &sgid)); 4257 if (!is_error(ret)) { 4258 tput32(arg1, tswap32(rgid)); 4259 tput32(arg2, tswap32(egid)); 4260 tput32(arg3, tswap32(sgid)); 4261 } 4262 } 4263 break; 4264 #endif 4265 #ifdef TARGET_NR_chown32 4266 case TARGET_NR_chown32: 4267 p = lock_user_string(arg1); 4268 ret = get_errno(chown(p, arg2, arg3)); 4269 unlock_user(p, arg1, 0); 4270 break; 4271 #endif 4272 #ifdef TARGET_NR_setuid32 4273 case TARGET_NR_setuid32: 4274 ret = get_errno(setuid(arg1)); 4275 break; 4276 #endif 4277 #ifdef TARGET_NR_setgid32 4278 case TARGET_NR_setgid32: 4279 ret = get_errno(setgid(arg1)); 4280 break; 4281 #endif 4282 #ifdef TARGET_NR_setfsuid32 4283 case TARGET_NR_setfsuid32: 4284 ret = get_errno(setfsuid(arg1)); 4285 break; 4286 #endif 4287 #ifdef TARGET_NR_setfsgid32 4288 case TARGET_NR_setfsgid32: 4289 ret = get_errno(setfsgid(arg1)); 4290 break; 4291 #endif 4292 4293 case TARGET_NR_pivot_root: 4294 goto unimplemented; 4295 #ifdef TARGET_NR_mincore 4296 case TARGET_NR_mincore: 4297 goto unimplemented; 4298 #endif 4299 #ifdef TARGET_NR_madvise 4300 case TARGET_NR_madvise: 4301 /* A straight passthrough may not be safe because qemu sometimes 4302 turns private flie-backed mappings into anonymous mappings. 4303 This will break MADV_DONTNEED. 4304 This is a hint, so ignoring and returning success is ok. */ 4305 ret = get_errno(0); 4306 break; 4307 #endif 4308 #if TARGET_LONG_BITS == 32 4309 case TARGET_NR_fcntl64: 4310 { 4311 int cmd; 4312 struct flock64 fl; 4313 struct target_flock64 *target_fl; 4314 #ifdef TARGET_ARM 4315 struct target_eabi_flock64 *target_efl; 4316 #endif 4317 4318 switch(arg2){ 4319 case TARGET_F_GETLK64: 4320 cmd = F_GETLK64; 4321 break; 4322 case TARGET_F_SETLK64: 4323 cmd = F_SETLK64; 4324 break; 4325 case TARGET_F_SETLKW64: 4326 cmd = F_SETLK64; 4327 break; 4328 default: 4329 cmd = arg2; 4330 break; 4331 } 4332 4333 switch(arg2) { 4334 case TARGET_F_GETLK64: 4335 #ifdef TARGET_ARM 4336 if (((CPUARMState *)cpu_env)->eabi) { 4337 lock_user_struct(target_efl, arg3, 1); 4338 fl.l_type = tswap16(target_efl->l_type); 4339 fl.l_whence = tswap16(target_efl->l_whence); 4340 fl.l_start = tswap64(target_efl->l_start); 4341 fl.l_len = tswap64(target_efl->l_len); 4342 fl.l_pid = tswapl(target_efl->l_pid); 4343 unlock_user_struct(target_efl, arg3, 0); 4344 } else 4345 #endif 4346 { 4347 lock_user_struct(target_fl, arg3, 1); 4348 fl.l_type = tswap16(target_fl->l_type); 4349 fl.l_whence = tswap16(target_fl->l_whence); 4350 fl.l_start = tswap64(target_fl->l_start); 4351 fl.l_len = tswap64(target_fl->l_len); 4352 fl.l_pid = tswapl(target_fl->l_pid); 4353 unlock_user_struct(target_fl, arg3, 0); 4354 } 4355 ret = get_errno(fcntl(arg1, cmd, &fl)); 4356 if (ret == 0) { 4357 #ifdef TARGET_ARM 4358 if (((CPUARMState *)cpu_env)->eabi) { 4359 lock_user_struct(target_efl, arg3, 0); 4360 target_efl->l_type = tswap16(fl.l_type); 4361 target_efl->l_whence = tswap16(fl.l_whence); 4362 target_efl->l_start = tswap64(fl.l_start); 4363 target_efl->l_len = tswap64(fl.l_len); 4364 target_efl->l_pid = tswapl(fl.l_pid); 4365 unlock_user_struct(target_efl, arg3, 1); 4366 } else 4367 #endif 4368 { 4369 lock_user_struct(target_fl, arg3, 0); 4370 target_fl->l_type = tswap16(fl.l_type); 4371 target_fl->l_whence = tswap16(fl.l_whence); 4372 target_fl->l_start = tswap64(fl.l_start); 4373 target_fl->l_len = tswap64(fl.l_len); 4374 target_fl->l_pid = tswapl(fl.l_pid); 4375 unlock_user_struct(target_fl, arg3, 1); 4376 } 4377 } 4378 break; 4379 4380 case TARGET_F_SETLK64: 4381 case TARGET_F_SETLKW64: 4382 #ifdef TARGET_ARM 4383 if (((CPUARMState *)cpu_env)->eabi) { 4384 lock_user_struct(target_efl, arg3, 1); 4385 fl.l_type = tswap16(target_efl->l_type); 4386 fl.l_whence = tswap16(target_efl->l_whence); 4387 fl.l_start = tswap64(target_efl->l_start); 4388 fl.l_len = tswap64(target_efl->l_len); 4389 fl.l_pid = tswapl(target_efl->l_pid); 4390 unlock_user_struct(target_efl, arg3, 0); 4391 } else 4392 #endif 4393 { 4394 lock_user_struct(target_fl, arg3, 1); 4395 fl.l_type = tswap16(target_fl->l_type); 4396 fl.l_whence = tswap16(target_fl->l_whence); 4397 fl.l_start = tswap64(target_fl->l_start); 4398 fl.l_len = tswap64(target_fl->l_len); 4399 fl.l_pid = tswapl(target_fl->l_pid); 4400 unlock_user_struct(target_fl, arg3, 0); 4401 } 4402 ret = get_errno(fcntl(arg1, cmd, &fl)); 4403 break; 4404 default: 4405 ret = get_errno(do_fcntl(arg1, cmd, arg3)); 4406 break; 4407 } 4408 break; 4409 } 4410 #endif 4411 #ifdef TARGET_NR_cacheflush 4412 case TARGET_NR_cacheflush: 4413 /* self-modifying code is handled automatically, so nothing needed */ 4414 ret = 0; 4415 break; 4416 #endif 4417 #ifdef TARGET_NR_security 4418 case TARGET_NR_security: 4419 goto unimplemented; 4420 #endif 4421 #ifdef TARGET_NR_getpagesize 4422 case TARGET_NR_getpagesize: 4423 ret = TARGET_PAGE_SIZE; 4424 break; 4425 #endif 4426 case TARGET_NR_gettid: 4427 ret = get_errno(gettid()); 4428 break; 4429 #ifdef TARGET_NR_readahead 4430 case TARGET_NR_readahead: 4431 goto unimplemented; 4432 #endif 4433 #ifdef TARGET_NR_setxattr 4434 case TARGET_NR_setxattr: 4435 case TARGET_NR_lsetxattr: 4436 case TARGET_NR_fsetxattr: 4437 case TARGET_NR_getxattr: 4438 case TARGET_NR_lgetxattr: 4439 case TARGET_NR_fgetxattr: 4440 case TARGET_NR_listxattr: 4441 case TARGET_NR_llistxattr: 4442 case TARGET_NR_flistxattr: 4443 case TARGET_NR_removexattr: 4444 case TARGET_NR_lremovexattr: 4445 case TARGET_NR_fremovexattr: 4446 goto unimplemented_nowarn; 4447 #endif 4448 #ifdef TARGET_NR_set_thread_area 4449 case TARGET_NR_set_thread_area: 4450 #ifdef TARGET_MIPS 4451 ((CPUMIPSState *) cpu_env)->tls_value = arg1; 4452 ret = 0; 4453 break; 4454 #else 4455 goto unimplemented_nowarn; 4456 #endif 4457 #endif 4458 #ifdef TARGET_NR_get_thread_area 4459 case TARGET_NR_get_thread_area: 4460 goto unimplemented_nowarn; 4461 #endif 4462 #ifdef TARGET_NR_getdomainname 4463 case TARGET_NR_getdomainname: 4464 goto unimplemented_nowarn; 4465 #endif 4466 4467 #ifdef TARGET_NR_clock_gettime 4468 case TARGET_NR_clock_gettime: 4469 { 4470 struct timespec ts; 4471 ret = get_errno(clock_gettime(arg1, &ts)); 4472 if (!is_error(ret)) { 4473 host_to_target_timespec(arg2, &ts); 4474 } 4475 break; 4476 } 4477 #endif 4478 #ifdef TARGET_NR_clock_getres 4479 case TARGET_NR_clock_getres: 4480 { 4481 struct timespec ts; 4482 ret = get_errno(clock_getres(arg1, &ts)); 4483 if (!is_error(ret)) { 4484 host_to_target_timespec(arg2, &ts); 4485 } 4486 break; 4487 } 4488 #endif 4489 4490 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address) 4491 case TARGET_NR_set_tid_address: 4492 ret = get_errno(set_tid_address((int *) arg1)); 4493 break; 4494 #endif 4495 4496 default: 4497 unimplemented: 4498 gemu_log("qemu: Unsupported syscall: %d\n", num); 4499 #if defined(TARGET_NR_setxattr) || defined(TARGET_NR_get_thread_area) || defined(TARGET_NR_getdomainname) 4500 unimplemented_nowarn: 4501 #endif 4502 ret = -ENOSYS; 4503 break; 4504 } 4505 fail: 4506 #ifdef DEBUG 4507 gemu_log(" = %ld\n", ret); 4508 #endif 4509 return ret; 4510 } 4511 4512