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_mkdirat __NR_mkdirat 146 #define __NR_sys_openat __NR_openat 147 #define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo 148 #define __NR_sys_syslog __NR_syslog 149 #define __NR_sys_tgkill __NR_tgkill 150 #define __NR_sys_tkill __NR_tkill 151 152 #if defined(__alpha__) || defined (__ia64__) || defined(__x86_64__) 153 #define __NR__llseek __NR_lseek 154 #endif 155 156 #ifdef __NR_gettid 157 _syscall0(int, gettid) 158 #else 159 static int gettid(void) { 160 return -ENOSYS; 161 } 162 #endif 163 _syscall1(int,sys_uname,struct new_utsname *,buf) 164 _syscall2(int,sys_getcwd1,char *,buf,size_t,size) 165 _syscall3(int, sys_getdents, uint, fd, struct dirent *, dirp, uint, count); 166 #if defined(TARGET_NR_getdents64) && defined(__NR_getdents64) 167 _syscall3(int, sys_getdents64, uint, fd, struct dirent64 *, dirp, uint, count); 168 #endif 169 _syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo, 170 loff_t *, res, uint, wh); 171 #if defined(TARGET_NR_mkdirat) && defined(__NR_mkdirat) 172 _syscall3(int,sys_mkdirat,int,dirfd,const char *,pathname,mode_t,mode) 173 #endif 174 #if defined(TARGET_NR_openat) && defined(__NR_openat) 175 _syscall4(int,sys_openat,int,dirfd,const char *,pathname,int,flags,mode_t,mode) 176 #endif 177 _syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo) 178 _syscall3(int,sys_syslog,int,type,char*,bufp,int,len) 179 #if defined(TARGET_NR_tgkill) && defined(__NR_tgkill) 180 _syscall3(int,sys_tgkill,int,tgid,int,pid,int,sig) 181 #endif 182 #if defined(TARGET_NR_tkill) && defined(__NR_tkill) 183 _syscall2(int,sys_tkill,int,tid,int,sig) 184 #endif 185 #ifdef __NR_exit_group 186 _syscall1(int,exit_group,int,error_code) 187 #endif 188 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address) 189 _syscall1(int,set_tid_address,int *,tidptr) 190 #endif 191 192 extern int personality(int); 193 extern int flock(int, int); 194 extern int setfsuid(int); 195 extern int setfsgid(int); 196 extern int setresuid(uid_t, uid_t, uid_t); 197 extern int getresuid(uid_t *, uid_t *, uid_t *); 198 extern int setresgid(gid_t, gid_t, gid_t); 199 extern int getresgid(gid_t *, gid_t *, gid_t *); 200 extern int setgroups(int, gid_t *); 201 202 /* 203 * This list is the union of errno values overridden in asm-<arch>/errno.h 204 * minus the errnos that are not actually generic to all archs. 205 */ 206 static uint16_t host_to_target_errno_table[1200] = { 207 [EIDRM] = TARGET_EIDRM, 208 [ECHRNG] = TARGET_ECHRNG, 209 [EL2NSYNC] = TARGET_EL2NSYNC, 210 [EL3HLT] = TARGET_EL3HLT, 211 [EL3RST] = TARGET_EL3RST, 212 [ELNRNG] = TARGET_ELNRNG, 213 [EUNATCH] = TARGET_EUNATCH, 214 [ENOCSI] = TARGET_ENOCSI, 215 [EL2HLT] = TARGET_EL2HLT, 216 [EDEADLK] = TARGET_EDEADLK, 217 [ENOLCK] = TARGET_ENOLCK, 218 [EBADE] = TARGET_EBADE, 219 [EBADR] = TARGET_EBADR, 220 [EXFULL] = TARGET_EXFULL, 221 [ENOANO] = TARGET_ENOANO, 222 [EBADRQC] = TARGET_EBADRQC, 223 [EBADSLT] = TARGET_EBADSLT, 224 [EBFONT] = TARGET_EBFONT, 225 [ENOSTR] = TARGET_ENOSTR, 226 [ENODATA] = TARGET_ENODATA, 227 [ETIME] = TARGET_ETIME, 228 [ENOSR] = TARGET_ENOSR, 229 [ENONET] = TARGET_ENONET, 230 [ENOPKG] = TARGET_ENOPKG, 231 [EREMOTE] = TARGET_EREMOTE, 232 [ENOLINK] = TARGET_ENOLINK, 233 [EADV] = TARGET_EADV, 234 [ESRMNT] = TARGET_ESRMNT, 235 [ECOMM] = TARGET_ECOMM, 236 [EPROTO] = TARGET_EPROTO, 237 [EDOTDOT] = TARGET_EDOTDOT, 238 [EMULTIHOP] = TARGET_EMULTIHOP, 239 [EBADMSG] = TARGET_EBADMSG, 240 [ENAMETOOLONG] = TARGET_ENAMETOOLONG, 241 [EOVERFLOW] = TARGET_EOVERFLOW, 242 [ENOTUNIQ] = TARGET_ENOTUNIQ, 243 [EBADFD] = TARGET_EBADFD, 244 [EREMCHG] = TARGET_EREMCHG, 245 [ELIBACC] = TARGET_ELIBACC, 246 [ELIBBAD] = TARGET_ELIBBAD, 247 [ELIBSCN] = TARGET_ELIBSCN, 248 [ELIBMAX] = TARGET_ELIBMAX, 249 [ELIBEXEC] = TARGET_ELIBEXEC, 250 [EILSEQ] = TARGET_EILSEQ, 251 [ENOSYS] = TARGET_ENOSYS, 252 [ELOOP] = TARGET_ELOOP, 253 [ERESTART] = TARGET_ERESTART, 254 [ESTRPIPE] = TARGET_ESTRPIPE, 255 [ENOTEMPTY] = TARGET_ENOTEMPTY, 256 [EUSERS] = TARGET_EUSERS, 257 [ENOTSOCK] = TARGET_ENOTSOCK, 258 [EDESTADDRREQ] = TARGET_EDESTADDRREQ, 259 [EMSGSIZE] = TARGET_EMSGSIZE, 260 [EPROTOTYPE] = TARGET_EPROTOTYPE, 261 [ENOPROTOOPT] = TARGET_ENOPROTOOPT, 262 [EPROTONOSUPPORT] = TARGET_EPROTONOSUPPORT, 263 [ESOCKTNOSUPPORT] = TARGET_ESOCKTNOSUPPORT, 264 [EOPNOTSUPP] = TARGET_EOPNOTSUPP, 265 [EPFNOSUPPORT] = TARGET_EPFNOSUPPORT, 266 [EAFNOSUPPORT] = TARGET_EAFNOSUPPORT, 267 [EADDRINUSE] = TARGET_EADDRINUSE, 268 [EADDRNOTAVAIL] = TARGET_EADDRNOTAVAIL, 269 [ENETDOWN] = TARGET_ENETDOWN, 270 [ENETUNREACH] = TARGET_ENETUNREACH, 271 [ENETRESET] = TARGET_ENETRESET, 272 [ECONNABORTED] = TARGET_ECONNABORTED, 273 [ECONNRESET] = TARGET_ECONNRESET, 274 [ENOBUFS] = TARGET_ENOBUFS, 275 [EISCONN] = TARGET_EISCONN, 276 [ENOTCONN] = TARGET_ENOTCONN, 277 [EUCLEAN] = TARGET_EUCLEAN, 278 [ENOTNAM] = TARGET_ENOTNAM, 279 [ENAVAIL] = TARGET_ENAVAIL, 280 [EISNAM] = TARGET_EISNAM, 281 [EREMOTEIO] = TARGET_EREMOTEIO, 282 [ESHUTDOWN] = TARGET_ESHUTDOWN, 283 [ETOOMANYREFS] = TARGET_ETOOMANYREFS, 284 [ETIMEDOUT] = TARGET_ETIMEDOUT, 285 [ECONNREFUSED] = TARGET_ECONNREFUSED, 286 [EHOSTDOWN] = TARGET_EHOSTDOWN, 287 [EHOSTUNREACH] = TARGET_EHOSTUNREACH, 288 [EALREADY] = TARGET_EALREADY, 289 [EINPROGRESS] = TARGET_EINPROGRESS, 290 [ESTALE] = TARGET_ESTALE, 291 [ECANCELED] = TARGET_ECANCELED, 292 [ENOMEDIUM] = TARGET_ENOMEDIUM, 293 [EMEDIUMTYPE] = TARGET_EMEDIUMTYPE, 294 #ifdef ENOKEY 295 [ENOKEY] = TARGET_ENOKEY, 296 #endif 297 #ifdef EKEYEXPIRED 298 [EKEYEXPIRED] = TARGET_EKEYEXPIRED, 299 #endif 300 #ifdef EKEYREVOKED 301 [EKEYREVOKED] = TARGET_EKEYREVOKED, 302 #endif 303 #ifdef EKEYREJECTED 304 [EKEYREJECTED] = TARGET_EKEYREJECTED, 305 #endif 306 #ifdef EOWNERDEAD 307 [EOWNERDEAD] = TARGET_EOWNERDEAD, 308 #endif 309 #ifdef ENOTRECOVERABLE 310 [ENOTRECOVERABLE] = TARGET_ENOTRECOVERABLE, 311 #endif 312 }; 313 314 static inline int host_to_target_errno(int err) 315 { 316 if(host_to_target_errno_table[err]) 317 return host_to_target_errno_table[err]; 318 return err; 319 } 320 321 static inline long get_errno(long ret) 322 { 323 if (ret == -1) 324 return -host_to_target_errno(errno); 325 else 326 return ret; 327 } 328 329 static inline int is_error(long ret) 330 { 331 return (unsigned long)ret >= (unsigned long)(-4096); 332 } 333 334 static target_ulong target_brk; 335 static target_ulong target_original_brk; 336 337 void target_set_brk(target_ulong new_brk) 338 { 339 target_original_brk = target_brk = HOST_PAGE_ALIGN(new_brk); 340 } 341 342 long do_brk(target_ulong new_brk) 343 { 344 target_ulong brk_page; 345 long mapped_addr; 346 int new_alloc_size; 347 348 if (!new_brk) 349 return target_brk; 350 if (new_brk < target_original_brk) 351 return -ENOMEM; 352 353 brk_page = HOST_PAGE_ALIGN(target_brk); 354 355 /* If the new brk is less than this, set it and we're done... */ 356 if (new_brk < brk_page) { 357 target_brk = new_brk; 358 return target_brk; 359 } 360 361 /* We need to allocate more memory after the brk... */ 362 new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1); 363 mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size, 364 PROT_READ|PROT_WRITE, 365 MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0)); 366 if (is_error(mapped_addr)) { 367 return mapped_addr; 368 } else { 369 target_brk = new_brk; 370 return target_brk; 371 } 372 } 373 374 static inline fd_set *target_to_host_fds(fd_set *fds, 375 target_long *target_fds, int n) 376 { 377 #if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN) 378 return (fd_set *)target_fds; 379 #else 380 int i, b; 381 if (target_fds) { 382 FD_ZERO(fds); 383 for(i = 0;i < n; i++) { 384 b = (tswapl(target_fds[i / TARGET_LONG_BITS]) >> 385 (i & (TARGET_LONG_BITS - 1))) & 1; 386 if (b) 387 FD_SET(i, fds); 388 } 389 return fds; 390 } else { 391 return NULL; 392 } 393 #endif 394 } 395 396 static inline void host_to_target_fds(target_long *target_fds, 397 fd_set *fds, int n) 398 { 399 #if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN) 400 /* nothing to do */ 401 #else 402 int i, nw, j, k; 403 target_long v; 404 405 if (target_fds) { 406 nw = (n + TARGET_LONG_BITS - 1) / TARGET_LONG_BITS; 407 k = 0; 408 for(i = 0;i < nw; i++) { 409 v = 0; 410 for(j = 0; j < TARGET_LONG_BITS; j++) { 411 v |= ((FD_ISSET(k, fds) != 0) << j); 412 k++; 413 } 414 target_fds[i] = tswapl(v); 415 } 416 } 417 #endif 418 } 419 420 #if defined(__alpha__) 421 #define HOST_HZ 1024 422 #else 423 #define HOST_HZ 100 424 #endif 425 426 static inline long host_to_target_clock_t(long ticks) 427 { 428 #if HOST_HZ == TARGET_HZ 429 return ticks; 430 #else 431 return ((int64_t)ticks * TARGET_HZ) / HOST_HZ; 432 #endif 433 } 434 435 static inline void host_to_target_rusage(target_ulong target_addr, 436 const struct rusage *rusage) 437 { 438 struct target_rusage *target_rusage; 439 440 lock_user_struct(target_rusage, target_addr, 0); 441 target_rusage->ru_utime.tv_sec = tswapl(rusage->ru_utime.tv_sec); 442 target_rusage->ru_utime.tv_usec = tswapl(rusage->ru_utime.tv_usec); 443 target_rusage->ru_stime.tv_sec = tswapl(rusage->ru_stime.tv_sec); 444 target_rusage->ru_stime.tv_usec = tswapl(rusage->ru_stime.tv_usec); 445 target_rusage->ru_maxrss = tswapl(rusage->ru_maxrss); 446 target_rusage->ru_ixrss = tswapl(rusage->ru_ixrss); 447 target_rusage->ru_idrss = tswapl(rusage->ru_idrss); 448 target_rusage->ru_isrss = tswapl(rusage->ru_isrss); 449 target_rusage->ru_minflt = tswapl(rusage->ru_minflt); 450 target_rusage->ru_majflt = tswapl(rusage->ru_majflt); 451 target_rusage->ru_nswap = tswapl(rusage->ru_nswap); 452 target_rusage->ru_inblock = tswapl(rusage->ru_inblock); 453 target_rusage->ru_oublock = tswapl(rusage->ru_oublock); 454 target_rusage->ru_msgsnd = tswapl(rusage->ru_msgsnd); 455 target_rusage->ru_msgrcv = tswapl(rusage->ru_msgrcv); 456 target_rusage->ru_nsignals = tswapl(rusage->ru_nsignals); 457 target_rusage->ru_nvcsw = tswapl(rusage->ru_nvcsw); 458 target_rusage->ru_nivcsw = tswapl(rusage->ru_nivcsw); 459 unlock_user_struct(target_rusage, target_addr, 1); 460 } 461 462 static inline void target_to_host_timeval(struct timeval *tv, 463 target_ulong target_addr) 464 { 465 struct target_timeval *target_tv; 466 467 lock_user_struct(target_tv, target_addr, 1); 468 tv->tv_sec = tswapl(target_tv->tv_sec); 469 tv->tv_usec = tswapl(target_tv->tv_usec); 470 unlock_user_struct(target_tv, target_addr, 0); 471 } 472 473 static inline void host_to_target_timeval(target_ulong target_addr, 474 const struct timeval *tv) 475 { 476 struct target_timeval *target_tv; 477 478 lock_user_struct(target_tv, target_addr, 0); 479 target_tv->tv_sec = tswapl(tv->tv_sec); 480 target_tv->tv_usec = tswapl(tv->tv_usec); 481 unlock_user_struct(target_tv, target_addr, 1); 482 } 483 484 485 static long do_select(long n, 486 target_ulong rfd_p, target_ulong wfd_p, 487 target_ulong efd_p, target_ulong target_tv) 488 { 489 fd_set rfds, wfds, efds; 490 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr; 491 target_long *target_rfds, *target_wfds, *target_efds; 492 struct timeval tv, *tv_ptr; 493 long ret; 494 int ok; 495 496 if (rfd_p) { 497 target_rfds = lock_user(rfd_p, sizeof(target_long) * n, 1); 498 rfds_ptr = target_to_host_fds(&rfds, target_rfds, n); 499 } else { 500 target_rfds = NULL; 501 rfds_ptr = NULL; 502 } 503 if (wfd_p) { 504 target_wfds = lock_user(wfd_p, sizeof(target_long) * n, 1); 505 wfds_ptr = target_to_host_fds(&wfds, target_wfds, n); 506 } else { 507 target_wfds = NULL; 508 wfds_ptr = NULL; 509 } 510 if (efd_p) { 511 target_efds = lock_user(efd_p, sizeof(target_long) * n, 1); 512 efds_ptr = target_to_host_fds(&efds, target_efds, n); 513 } else { 514 target_efds = NULL; 515 efds_ptr = NULL; 516 } 517 518 if (target_tv) { 519 target_to_host_timeval(&tv, target_tv); 520 tv_ptr = &tv; 521 } else { 522 tv_ptr = NULL; 523 } 524 ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr)); 525 ok = !is_error(ret); 526 527 if (ok) { 528 host_to_target_fds(target_rfds, rfds_ptr, n); 529 host_to_target_fds(target_wfds, wfds_ptr, n); 530 host_to_target_fds(target_efds, efds_ptr, n); 531 532 if (target_tv) { 533 host_to_target_timeval(target_tv, &tv); 534 } 535 } 536 if (target_rfds) 537 unlock_user(target_rfds, rfd_p, ok ? sizeof(target_long) * n : 0); 538 if (target_wfds) 539 unlock_user(target_wfds, wfd_p, ok ? sizeof(target_long) * n : 0); 540 if (target_efds) 541 unlock_user(target_efds, efd_p, ok ? sizeof(target_long) * n : 0); 542 543 return ret; 544 } 545 546 static inline void target_to_host_sockaddr(struct sockaddr *addr, 547 target_ulong target_addr, 548 socklen_t len) 549 { 550 struct target_sockaddr *target_saddr; 551 552 target_saddr = lock_user(target_addr, len, 1); 553 memcpy(addr, target_saddr, len); 554 addr->sa_family = tswap16(target_saddr->sa_family); 555 unlock_user(target_saddr, target_addr, 0); 556 } 557 558 static inline void host_to_target_sockaddr(target_ulong target_addr, 559 struct sockaddr *addr, 560 socklen_t len) 561 { 562 struct target_sockaddr *target_saddr; 563 564 target_saddr = lock_user(target_addr, len, 0); 565 memcpy(target_saddr, addr, len); 566 target_saddr->sa_family = tswap16(addr->sa_family); 567 unlock_user(target_saddr, target_addr, len); 568 } 569 570 /* ??? Should this also swap msgh->name? */ 571 static inline void target_to_host_cmsg(struct msghdr *msgh, 572 struct target_msghdr *target_msgh) 573 { 574 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh); 575 struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh); 576 socklen_t space = 0; 577 578 while (cmsg && target_cmsg) { 579 void *data = CMSG_DATA(cmsg); 580 void *target_data = TARGET_CMSG_DATA(target_cmsg); 581 582 int len = tswapl(target_cmsg->cmsg_len) 583 - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr)); 584 585 space += CMSG_SPACE(len); 586 if (space > msgh->msg_controllen) { 587 space -= CMSG_SPACE(len); 588 gemu_log("Host cmsg overflow\n"); 589 break; 590 } 591 592 cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level); 593 cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type); 594 cmsg->cmsg_len = CMSG_LEN(len); 595 596 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) { 597 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type); 598 memcpy(data, target_data, len); 599 } else { 600 int *fd = (int *)data; 601 int *target_fd = (int *)target_data; 602 int i, numfds = len / sizeof(int); 603 604 for (i = 0; i < numfds; i++) 605 fd[i] = tswap32(target_fd[i]); 606 } 607 608 cmsg = CMSG_NXTHDR(msgh, cmsg); 609 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg); 610 } 611 612 msgh->msg_controllen = space; 613 } 614 615 /* ??? Should this also swap msgh->name? */ 616 static inline void host_to_target_cmsg(struct target_msghdr *target_msgh, 617 struct msghdr *msgh) 618 { 619 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh); 620 struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh); 621 socklen_t space = 0; 622 623 while (cmsg && target_cmsg) { 624 void *data = CMSG_DATA(cmsg); 625 void *target_data = TARGET_CMSG_DATA(target_cmsg); 626 627 int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr)); 628 629 space += TARGET_CMSG_SPACE(len); 630 if (space > tswapl(target_msgh->msg_controllen)) { 631 space -= TARGET_CMSG_SPACE(len); 632 gemu_log("Target cmsg overflow\n"); 633 break; 634 } 635 636 target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level); 637 target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type); 638 target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len)); 639 640 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) { 641 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type); 642 memcpy(target_data, data, len); 643 } else { 644 int *fd = (int *)data; 645 int *target_fd = (int *)target_data; 646 int i, numfds = len / sizeof(int); 647 648 for (i = 0; i < numfds; i++) 649 target_fd[i] = tswap32(fd[i]); 650 } 651 652 cmsg = CMSG_NXTHDR(msgh, cmsg); 653 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg); 654 } 655 656 msgh->msg_controllen = tswapl(space); 657 } 658 659 static long do_setsockopt(int sockfd, int level, int optname, 660 target_ulong optval, socklen_t optlen) 661 { 662 int val, ret; 663 664 switch(level) { 665 case SOL_TCP: 666 /* TCP options all take an 'int' value. */ 667 if (optlen < sizeof(uint32_t)) 668 return -EINVAL; 669 670 val = tget32(optval); 671 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val))); 672 break; 673 case SOL_IP: 674 switch(optname) { 675 case IP_TOS: 676 case IP_TTL: 677 case IP_HDRINCL: 678 case IP_ROUTER_ALERT: 679 case IP_RECVOPTS: 680 case IP_RETOPTS: 681 case IP_PKTINFO: 682 case IP_MTU_DISCOVER: 683 case IP_RECVERR: 684 case IP_RECVTOS: 685 #ifdef IP_FREEBIND 686 case IP_FREEBIND: 687 #endif 688 case IP_MULTICAST_TTL: 689 case IP_MULTICAST_LOOP: 690 val = 0; 691 if (optlen >= sizeof(uint32_t)) { 692 val = tget32(optval); 693 } else if (optlen >= 1) { 694 val = tget8(optval); 695 } 696 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val))); 697 break; 698 default: 699 goto unimplemented; 700 } 701 break; 702 case TARGET_SOL_SOCKET: 703 switch (optname) { 704 /* Options with 'int' argument. */ 705 case TARGET_SO_DEBUG: 706 optname = SO_DEBUG; 707 break; 708 case TARGET_SO_REUSEADDR: 709 optname = SO_REUSEADDR; 710 break; 711 case TARGET_SO_TYPE: 712 optname = SO_TYPE; 713 break; 714 case TARGET_SO_ERROR: 715 optname = SO_ERROR; 716 break; 717 case TARGET_SO_DONTROUTE: 718 optname = SO_DONTROUTE; 719 break; 720 case TARGET_SO_BROADCAST: 721 optname = SO_BROADCAST; 722 break; 723 case TARGET_SO_SNDBUF: 724 optname = SO_SNDBUF; 725 break; 726 case TARGET_SO_RCVBUF: 727 optname = SO_RCVBUF; 728 break; 729 case TARGET_SO_KEEPALIVE: 730 optname = SO_KEEPALIVE; 731 break; 732 case TARGET_SO_OOBINLINE: 733 optname = SO_OOBINLINE; 734 break; 735 case TARGET_SO_NO_CHECK: 736 optname = SO_NO_CHECK; 737 break; 738 case TARGET_SO_PRIORITY: 739 optname = SO_PRIORITY; 740 break; 741 #ifdef SO_BSDCOMPAT 742 case TARGET_SO_BSDCOMPAT: 743 optname = SO_BSDCOMPAT; 744 break; 745 #endif 746 case TARGET_SO_PASSCRED: 747 optname = SO_PASSCRED; 748 break; 749 case TARGET_SO_TIMESTAMP: 750 optname = SO_TIMESTAMP; 751 break; 752 case TARGET_SO_RCVLOWAT: 753 optname = SO_RCVLOWAT; 754 break; 755 case TARGET_SO_RCVTIMEO: 756 optname = SO_RCVTIMEO; 757 break; 758 case TARGET_SO_SNDTIMEO: 759 optname = SO_SNDTIMEO; 760 break; 761 break; 762 default: 763 goto unimplemented; 764 } 765 if (optlen < sizeof(uint32_t)) 766 return -EINVAL; 767 768 val = tget32(optval); 769 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val))); 770 break; 771 default: 772 unimplemented: 773 gemu_log("Unsupported setsockopt level=%d optname=%d \n", level, optname); 774 ret = -ENOSYS; 775 } 776 return ret; 777 } 778 779 static long do_getsockopt(int sockfd, int level, int optname, 780 target_ulong optval, target_ulong optlen) 781 { 782 int len, lv, val, ret; 783 784 switch(level) { 785 case TARGET_SOL_SOCKET: 786 level = SOL_SOCKET; 787 switch (optname) { 788 case TARGET_SO_LINGER: 789 case TARGET_SO_RCVTIMEO: 790 case TARGET_SO_SNDTIMEO: 791 case TARGET_SO_PEERCRED: 792 case TARGET_SO_PEERNAME: 793 /* These don't just return a single integer */ 794 goto unimplemented; 795 default: 796 goto int_case; 797 } 798 break; 799 case SOL_TCP: 800 /* TCP options all take an 'int' value. */ 801 int_case: 802 len = tget32(optlen); 803 if (len < 0) 804 return -EINVAL; 805 lv = sizeof(int); 806 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv)); 807 if (ret < 0) 808 return ret; 809 val = tswap32(val); 810 if (len > lv) 811 len = lv; 812 if (len == 4) 813 tput32(optval, val); 814 else 815 tput8(optval, val); 816 tput32(optlen, len); 817 break; 818 case SOL_IP: 819 switch(optname) { 820 case IP_TOS: 821 case IP_TTL: 822 case IP_HDRINCL: 823 case IP_ROUTER_ALERT: 824 case IP_RECVOPTS: 825 case IP_RETOPTS: 826 case IP_PKTINFO: 827 case IP_MTU_DISCOVER: 828 case IP_RECVERR: 829 case IP_RECVTOS: 830 #ifdef IP_FREEBIND 831 case IP_FREEBIND: 832 #endif 833 case IP_MULTICAST_TTL: 834 case IP_MULTICAST_LOOP: 835 len = tget32(optlen); 836 if (len < 0) 837 return -EINVAL; 838 lv = sizeof(int); 839 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv)); 840 if (ret < 0) 841 return ret; 842 if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) { 843 len = 1; 844 tput32(optlen, len); 845 tput8(optval, val); 846 } else { 847 if (len > sizeof(int)) 848 len = sizeof(int); 849 tput32(optlen, len); 850 tput32(optval, val); 851 } 852 break; 853 default: 854 goto unimplemented; 855 } 856 break; 857 default: 858 unimplemented: 859 gemu_log("getsockopt level=%d optname=%d not yet supported\n", 860 level, optname); 861 ret = -ENOSYS; 862 break; 863 } 864 return ret; 865 } 866 867 static void lock_iovec(struct iovec *vec, target_ulong target_addr, 868 int count, int copy) 869 { 870 struct target_iovec *target_vec; 871 target_ulong base; 872 int i; 873 874 target_vec = lock_user(target_addr, count * sizeof(struct target_iovec), 1); 875 for(i = 0;i < count; i++) { 876 base = tswapl(target_vec[i].iov_base); 877 vec[i].iov_len = tswapl(target_vec[i].iov_len); 878 vec[i].iov_base = lock_user(base, vec[i].iov_len, copy); 879 } 880 unlock_user (target_vec, target_addr, 0); 881 } 882 883 static void unlock_iovec(struct iovec *vec, target_ulong target_addr, 884 int count, int copy) 885 { 886 struct target_iovec *target_vec; 887 target_ulong base; 888 int i; 889 890 target_vec = lock_user(target_addr, count * sizeof(struct target_iovec), 1); 891 for(i = 0;i < count; i++) { 892 base = tswapl(target_vec[i].iov_base); 893 unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0); 894 } 895 unlock_user (target_vec, target_addr, 0); 896 } 897 898 static long do_socket(int domain, int type, int protocol) 899 { 900 #if defined(TARGET_MIPS) 901 switch(type) { 902 case TARGET_SOCK_DGRAM: 903 type = SOCK_DGRAM; 904 break; 905 case TARGET_SOCK_STREAM: 906 type = SOCK_STREAM; 907 break; 908 case TARGET_SOCK_RAW: 909 type = SOCK_RAW; 910 break; 911 case TARGET_SOCK_RDM: 912 type = SOCK_RDM; 913 break; 914 case TARGET_SOCK_SEQPACKET: 915 type = SOCK_SEQPACKET; 916 break; 917 case TARGET_SOCK_PACKET: 918 type = SOCK_PACKET; 919 break; 920 } 921 #endif 922 return get_errno(socket(domain, type, protocol)); 923 } 924 925 static long do_bind(int sockfd, target_ulong target_addr, 926 socklen_t addrlen) 927 { 928 void *addr = alloca(addrlen); 929 930 target_to_host_sockaddr(addr, target_addr, addrlen); 931 return get_errno(bind(sockfd, addr, addrlen)); 932 } 933 934 static long do_connect(int sockfd, target_ulong target_addr, 935 socklen_t addrlen) 936 { 937 void *addr = alloca(addrlen); 938 939 target_to_host_sockaddr(addr, target_addr, addrlen); 940 return get_errno(connect(sockfd, addr, addrlen)); 941 } 942 943 static long do_sendrecvmsg(int fd, target_ulong target_msg, 944 int flags, int send) 945 { 946 long ret; 947 struct target_msghdr *msgp; 948 struct msghdr msg; 949 int count; 950 struct iovec *vec; 951 target_ulong target_vec; 952 953 lock_user_struct(msgp, target_msg, 1); 954 if (msgp->msg_name) { 955 msg.msg_namelen = tswap32(msgp->msg_namelen); 956 msg.msg_name = alloca(msg.msg_namelen); 957 target_to_host_sockaddr(msg.msg_name, tswapl(msgp->msg_name), 958 msg.msg_namelen); 959 } else { 960 msg.msg_name = NULL; 961 msg.msg_namelen = 0; 962 } 963 msg.msg_controllen = 2 * tswapl(msgp->msg_controllen); 964 msg.msg_control = alloca(msg.msg_controllen); 965 msg.msg_flags = tswap32(msgp->msg_flags); 966 967 count = tswapl(msgp->msg_iovlen); 968 vec = alloca(count * sizeof(struct iovec)); 969 target_vec = tswapl(msgp->msg_iov); 970 lock_iovec(vec, target_vec, count, send); 971 msg.msg_iovlen = count; 972 msg.msg_iov = vec; 973 974 if (send) { 975 target_to_host_cmsg(&msg, msgp); 976 ret = get_errno(sendmsg(fd, &msg, flags)); 977 } else { 978 ret = get_errno(recvmsg(fd, &msg, flags)); 979 if (!is_error(ret)) 980 host_to_target_cmsg(msgp, &msg); 981 } 982 unlock_iovec(vec, target_vec, count, !send); 983 return ret; 984 } 985 986 static long do_accept(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(accept(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_getpeername(int fd, target_ulong target_addr, 1002 target_ulong target_addrlen) 1003 { 1004 socklen_t addrlen = tget32(target_addrlen); 1005 void *addr = alloca(addrlen); 1006 long ret; 1007 1008 ret = get_errno(getpeername(fd, addr, &addrlen)); 1009 if (!is_error(ret)) { 1010 host_to_target_sockaddr(target_addr, addr, addrlen); 1011 tput32(target_addrlen, addrlen); 1012 } 1013 return ret; 1014 } 1015 1016 static long do_getsockname(int fd, target_ulong target_addr, 1017 target_ulong target_addrlen) 1018 { 1019 socklen_t addrlen = tget32(target_addrlen); 1020 void *addr = alloca(addrlen); 1021 long ret; 1022 1023 ret = get_errno(getsockname(fd, addr, &addrlen)); 1024 if (!is_error(ret)) { 1025 host_to_target_sockaddr(target_addr, addr, addrlen); 1026 tput32(target_addrlen, addrlen); 1027 } 1028 return ret; 1029 } 1030 1031 static long do_socketpair(int domain, int type, int protocol, 1032 target_ulong target_tab) 1033 { 1034 int tab[2]; 1035 long ret; 1036 1037 ret = get_errno(socketpair(domain, type, protocol, tab)); 1038 if (!is_error(ret)) { 1039 tput32(target_tab, tab[0]); 1040 tput32(target_tab + 4, tab[1]); 1041 } 1042 return ret; 1043 } 1044 1045 static long do_sendto(int fd, target_ulong msg, size_t len, int flags, 1046 target_ulong target_addr, socklen_t addrlen) 1047 { 1048 void *addr; 1049 void *host_msg; 1050 long ret; 1051 1052 host_msg = lock_user(msg, len, 1); 1053 if (target_addr) { 1054 addr = alloca(addrlen); 1055 target_to_host_sockaddr(addr, target_addr, addrlen); 1056 ret = get_errno(sendto(fd, host_msg, len, flags, addr, addrlen)); 1057 } else { 1058 ret = get_errno(send(fd, host_msg, len, flags)); 1059 } 1060 unlock_user(host_msg, msg, 0); 1061 return ret; 1062 } 1063 1064 static long do_recvfrom(int fd, target_ulong msg, size_t len, int flags, 1065 target_ulong target_addr, target_ulong target_addrlen) 1066 { 1067 socklen_t addrlen; 1068 void *addr; 1069 void *host_msg; 1070 long ret; 1071 1072 host_msg = lock_user(msg, len, 0); 1073 if (target_addr) { 1074 addrlen = tget32(target_addrlen); 1075 addr = alloca(addrlen); 1076 ret = get_errno(recvfrom(fd, host_msg, len, flags, addr, &addrlen)); 1077 } else { 1078 addr = NULL; /* To keep compiler quiet. */ 1079 ret = get_errno(recv(fd, host_msg, len, flags)); 1080 } 1081 if (!is_error(ret)) { 1082 if (target_addr) { 1083 host_to_target_sockaddr(target_addr, addr, addrlen); 1084 tput32(target_addrlen, addrlen); 1085 } 1086 unlock_user(host_msg, msg, len); 1087 } else { 1088 unlock_user(host_msg, msg, 0); 1089 } 1090 return ret; 1091 } 1092 1093 static long do_socketcall(int num, target_ulong vptr) 1094 { 1095 long ret; 1096 const int n = sizeof(target_ulong); 1097 1098 switch(num) { 1099 case SOCKOP_socket: 1100 { 1101 int domain = tgetl(vptr); 1102 int type = tgetl(vptr + n); 1103 int protocol = tgetl(vptr + 2 * n); 1104 ret = do_socket(domain, type, protocol); 1105 } 1106 break; 1107 case SOCKOP_bind: 1108 { 1109 int sockfd = tgetl(vptr); 1110 target_ulong target_addr = tgetl(vptr + n); 1111 socklen_t addrlen = tgetl(vptr + 2 * n); 1112 ret = do_bind(sockfd, target_addr, addrlen); 1113 } 1114 break; 1115 case SOCKOP_connect: 1116 { 1117 int sockfd = tgetl(vptr); 1118 target_ulong target_addr = tgetl(vptr + n); 1119 socklen_t addrlen = tgetl(vptr + 2 * n); 1120 ret = do_connect(sockfd, target_addr, addrlen); 1121 } 1122 break; 1123 case SOCKOP_listen: 1124 { 1125 int sockfd = tgetl(vptr); 1126 int backlog = tgetl(vptr + n); 1127 ret = get_errno(listen(sockfd, backlog)); 1128 } 1129 break; 1130 case SOCKOP_accept: 1131 { 1132 int sockfd = tgetl(vptr); 1133 target_ulong target_addr = tgetl(vptr + n); 1134 target_ulong target_addrlen = tgetl(vptr + 2 * n); 1135 ret = do_accept(sockfd, target_addr, target_addrlen); 1136 } 1137 break; 1138 case SOCKOP_getsockname: 1139 { 1140 int sockfd = tgetl(vptr); 1141 target_ulong target_addr = tgetl(vptr + n); 1142 target_ulong target_addrlen = tgetl(vptr + 2 * n); 1143 ret = do_getsockname(sockfd, target_addr, target_addrlen); 1144 } 1145 break; 1146 case SOCKOP_getpeername: 1147 { 1148 int sockfd = tgetl(vptr); 1149 target_ulong target_addr = tgetl(vptr + n); 1150 target_ulong target_addrlen = tgetl(vptr + 2 * n); 1151 ret = do_getpeername(sockfd, target_addr, target_addrlen); 1152 } 1153 break; 1154 case SOCKOP_socketpair: 1155 { 1156 int domain = tgetl(vptr); 1157 int type = tgetl(vptr + n); 1158 int protocol = tgetl(vptr + 2 * n); 1159 target_ulong tab = tgetl(vptr + 3 * n); 1160 ret = do_socketpair(domain, type, protocol, tab); 1161 } 1162 break; 1163 case SOCKOP_send: 1164 { 1165 int sockfd = tgetl(vptr); 1166 target_ulong msg = tgetl(vptr + n); 1167 size_t len = tgetl(vptr + 2 * n); 1168 int flags = tgetl(vptr + 3 * n); 1169 ret = do_sendto(sockfd, msg, len, flags, 0, 0); 1170 } 1171 break; 1172 case SOCKOP_recv: 1173 { 1174 int sockfd = tgetl(vptr); 1175 target_ulong msg = tgetl(vptr + n); 1176 size_t len = tgetl(vptr + 2 * n); 1177 int flags = tgetl(vptr + 3 * n); 1178 ret = do_recvfrom(sockfd, msg, len, flags, 0, 0); 1179 } 1180 break; 1181 case SOCKOP_sendto: 1182 { 1183 int sockfd = tgetl(vptr); 1184 target_ulong msg = tgetl(vptr + n); 1185 size_t len = tgetl(vptr + 2 * n); 1186 int flags = tgetl(vptr + 3 * n); 1187 target_ulong addr = tgetl(vptr + 4 * n); 1188 socklen_t addrlen = tgetl(vptr + 5 * n); 1189 ret = do_sendto(sockfd, msg, len, flags, addr, addrlen); 1190 } 1191 break; 1192 case SOCKOP_recvfrom: 1193 { 1194 int sockfd = tgetl(vptr); 1195 target_ulong msg = tgetl(vptr + n); 1196 size_t len = tgetl(vptr + 2 * n); 1197 int flags = tgetl(vptr + 3 * n); 1198 target_ulong addr = tgetl(vptr + 4 * n); 1199 target_ulong addrlen = tgetl(vptr + 5 * n); 1200 ret = do_recvfrom(sockfd, msg, len, flags, addr, addrlen); 1201 } 1202 break; 1203 case SOCKOP_shutdown: 1204 { 1205 int sockfd = tgetl(vptr); 1206 int how = tgetl(vptr + n); 1207 1208 ret = get_errno(shutdown(sockfd, how)); 1209 } 1210 break; 1211 case SOCKOP_sendmsg: 1212 case SOCKOP_recvmsg: 1213 { 1214 int fd; 1215 target_ulong target_msg; 1216 int flags; 1217 1218 fd = tgetl(vptr); 1219 target_msg = tgetl(vptr + n); 1220 flags = tgetl(vptr + 2 * n); 1221 1222 ret = do_sendrecvmsg(fd, target_msg, flags, 1223 (num == SOCKOP_sendmsg)); 1224 } 1225 break; 1226 case SOCKOP_setsockopt: 1227 { 1228 int sockfd = tgetl(vptr); 1229 int level = tgetl(vptr + n); 1230 int optname = tgetl(vptr + 2 * n); 1231 target_ulong optval = tgetl(vptr + 3 * n); 1232 socklen_t optlen = tgetl(vptr + 4 * n); 1233 1234 ret = do_setsockopt(sockfd, level, optname, optval, optlen); 1235 } 1236 break; 1237 case SOCKOP_getsockopt: 1238 { 1239 int sockfd = tgetl(vptr); 1240 int level = tgetl(vptr + n); 1241 int optname = tgetl(vptr + 2 * n); 1242 target_ulong optval = tgetl(vptr + 3 * n); 1243 target_ulong poptlen = tgetl(vptr + 4 * n); 1244 1245 ret = do_getsockopt(sockfd, level, optname, optval, poptlen); 1246 } 1247 break; 1248 default: 1249 gemu_log("Unsupported socketcall: %d\n", num); 1250 ret = -ENOSYS; 1251 break; 1252 } 1253 return ret; 1254 } 1255 1256 #define N_SHM_REGIONS 32 1257 1258 static struct shm_region { 1259 uint32_t start; 1260 uint32_t size; 1261 } shm_regions[N_SHM_REGIONS]; 1262 1263 struct target_ipc_perm 1264 { 1265 target_long __key; 1266 target_ulong uid; 1267 target_ulong gid; 1268 target_ulong cuid; 1269 target_ulong cgid; 1270 unsigned short int mode; 1271 unsigned short int __pad1; 1272 unsigned short int __seq; 1273 unsigned short int __pad2; 1274 target_ulong __unused1; 1275 target_ulong __unused2; 1276 }; 1277 1278 struct target_semid_ds 1279 { 1280 struct target_ipc_perm sem_perm; 1281 target_ulong sem_otime; 1282 target_ulong __unused1; 1283 target_ulong sem_ctime; 1284 target_ulong __unused2; 1285 target_ulong sem_nsems; 1286 target_ulong __unused3; 1287 target_ulong __unused4; 1288 }; 1289 1290 static inline void target_to_host_ipc_perm(struct ipc_perm *host_ip, 1291 target_ulong target_addr) 1292 { 1293 struct target_ipc_perm *target_ip; 1294 struct target_semid_ds *target_sd; 1295 1296 lock_user_struct(target_sd, target_addr, 1); 1297 target_ip=&(target_sd->sem_perm); 1298 host_ip->__key = tswapl(target_ip->__key); 1299 host_ip->uid = tswapl(target_ip->uid); 1300 host_ip->gid = tswapl(target_ip->gid); 1301 host_ip->cuid = tswapl(target_ip->cuid); 1302 host_ip->cgid = tswapl(target_ip->cgid); 1303 host_ip->mode = tswapl(target_ip->mode); 1304 unlock_user_struct(target_sd, target_addr, 0); 1305 } 1306 1307 static inline void host_to_target_ipc_perm(target_ulong target_addr, 1308 struct ipc_perm *host_ip) 1309 { 1310 struct target_ipc_perm *target_ip; 1311 struct target_semid_ds *target_sd; 1312 1313 lock_user_struct(target_sd, target_addr, 0); 1314 target_ip = &(target_sd->sem_perm); 1315 target_ip->__key = tswapl(host_ip->__key); 1316 target_ip->uid = tswapl(host_ip->uid); 1317 target_ip->gid = tswapl(host_ip->gid); 1318 target_ip->cuid = tswapl(host_ip->cuid); 1319 target_ip->cgid = tswapl(host_ip->cgid); 1320 target_ip->mode = tswapl(host_ip->mode); 1321 unlock_user_struct(target_sd, target_addr, 1); 1322 } 1323 1324 static inline void target_to_host_semid_ds(struct semid_ds *host_sd, 1325 target_ulong target_addr) 1326 { 1327 struct target_semid_ds *target_sd; 1328 1329 lock_user_struct(target_sd, target_addr, 1); 1330 target_to_host_ipc_perm(&(host_sd->sem_perm),target_addr); 1331 host_sd->sem_nsems = tswapl(target_sd->sem_nsems); 1332 host_sd->sem_otime = tswapl(target_sd->sem_otime); 1333 host_sd->sem_ctime = tswapl(target_sd->sem_ctime); 1334 unlock_user_struct(target_sd, target_addr, 0); 1335 } 1336 1337 static inline void host_to_target_semid_ds(target_ulong target_addr, 1338 struct semid_ds *host_sd) 1339 { 1340 struct target_semid_ds *target_sd; 1341 1342 lock_user_struct(target_sd, target_addr, 0); 1343 host_to_target_ipc_perm(target_addr,&(host_sd->sem_perm)); 1344 target_sd->sem_nsems = tswapl(host_sd->sem_nsems); 1345 target_sd->sem_otime = tswapl(host_sd->sem_otime); 1346 target_sd->sem_ctime = tswapl(host_sd->sem_ctime); 1347 unlock_user_struct(target_sd, target_addr, 1); 1348 } 1349 1350 union semun { 1351 int val; 1352 struct semid_ds *buf; 1353 unsigned short *array; 1354 }; 1355 1356 union target_semun { 1357 int val; 1358 target_long buf; 1359 unsigned short int *array; 1360 }; 1361 1362 static inline void target_to_host_semun(unsigned long cmd, 1363 union semun *host_su, 1364 target_ulong target_addr, 1365 struct semid_ds *ds) 1366 { 1367 union target_semun *target_su; 1368 1369 switch( cmd ) { 1370 case IPC_STAT: 1371 case IPC_SET: 1372 lock_user_struct(target_su, target_addr, 1); 1373 target_to_host_semid_ds(ds,target_su->buf); 1374 host_su->buf = ds; 1375 unlock_user_struct(target_su, target_addr, 0); 1376 break; 1377 case GETVAL: 1378 case SETVAL: 1379 lock_user_struct(target_su, target_addr, 1); 1380 host_su->val = tswapl(target_su->val); 1381 unlock_user_struct(target_su, target_addr, 0); 1382 break; 1383 case GETALL: 1384 case SETALL: 1385 lock_user_struct(target_su, target_addr, 1); 1386 *host_su->array = tswap16(*target_su->array); 1387 unlock_user_struct(target_su, target_addr, 0); 1388 break; 1389 default: 1390 gemu_log("semun operation not fully supported: %d\n", (int)cmd); 1391 } 1392 } 1393 1394 static inline void host_to_target_semun(unsigned long cmd, 1395 target_ulong target_addr, 1396 union semun *host_su, 1397 struct semid_ds *ds) 1398 { 1399 union target_semun *target_su; 1400 1401 switch( cmd ) { 1402 case IPC_STAT: 1403 case IPC_SET: 1404 lock_user_struct(target_su, target_addr, 0); 1405 host_to_target_semid_ds(target_su->buf,ds); 1406 unlock_user_struct(target_su, target_addr, 1); 1407 break; 1408 case GETVAL: 1409 case SETVAL: 1410 lock_user_struct(target_su, target_addr, 0); 1411 target_su->val = tswapl(host_su->val); 1412 unlock_user_struct(target_su, target_addr, 1); 1413 break; 1414 case GETALL: 1415 case SETALL: 1416 lock_user_struct(target_su, target_addr, 0); 1417 *target_su->array = tswap16(*host_su->array); 1418 unlock_user_struct(target_su, target_addr, 1); 1419 break; 1420 default: 1421 gemu_log("semun operation not fully supported: %d\n", (int)cmd); 1422 } 1423 } 1424 1425 static inline long do_semctl(long first, long second, long third, long ptr) 1426 { 1427 union semun arg; 1428 struct semid_ds dsarg; 1429 int cmd = third&0xff; 1430 long ret = 0; 1431 1432 switch( cmd ) { 1433 case GETVAL: 1434 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1435 ret = get_errno(semctl(first, second, cmd, arg)); 1436 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1437 break; 1438 case SETVAL: 1439 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1440 ret = get_errno(semctl(first, second, cmd, arg)); 1441 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1442 break; 1443 case GETALL: 1444 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1445 ret = get_errno(semctl(first, second, cmd, arg)); 1446 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1447 break; 1448 case SETALL: 1449 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1450 ret = get_errno(semctl(first, second, cmd, arg)); 1451 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1452 break; 1453 case IPC_STAT: 1454 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1455 ret = get_errno(semctl(first, second, cmd, arg)); 1456 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1457 break; 1458 case IPC_SET: 1459 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1460 ret = get_errno(semctl(first, second, cmd, arg)); 1461 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1462 break; 1463 default: 1464 ret = get_errno(semctl(first, second, cmd, arg)); 1465 } 1466 1467 return ret; 1468 } 1469 1470 struct target_msqid_ds 1471 { 1472 struct target_ipc_perm msg_perm; 1473 target_ulong msg_stime; 1474 target_ulong __unused1; 1475 target_ulong msg_rtime; 1476 target_ulong __unused2; 1477 target_ulong msg_ctime; 1478 target_ulong __unused3; 1479 target_ulong __msg_cbytes; 1480 target_ulong msg_qnum; 1481 target_ulong msg_qbytes; 1482 target_ulong msg_lspid; 1483 target_ulong msg_lrpid; 1484 target_ulong __unused4; 1485 target_ulong __unused5; 1486 }; 1487 1488 static inline void target_to_host_msqid_ds(struct msqid_ds *host_md, 1489 target_ulong target_addr) 1490 { 1491 struct target_msqid_ds *target_md; 1492 1493 lock_user_struct(target_md, target_addr, 1); 1494 target_to_host_ipc_perm(&(host_md->msg_perm),target_addr); 1495 host_md->msg_stime = tswapl(target_md->msg_stime); 1496 host_md->msg_rtime = tswapl(target_md->msg_rtime); 1497 host_md->msg_ctime = tswapl(target_md->msg_ctime); 1498 host_md->__msg_cbytes = tswapl(target_md->__msg_cbytes); 1499 host_md->msg_qnum = tswapl(target_md->msg_qnum); 1500 host_md->msg_qbytes = tswapl(target_md->msg_qbytes); 1501 host_md->msg_lspid = tswapl(target_md->msg_lspid); 1502 host_md->msg_lrpid = tswapl(target_md->msg_lrpid); 1503 unlock_user_struct(target_md, target_addr, 0); 1504 } 1505 1506 static inline void host_to_target_msqid_ds(target_ulong target_addr, 1507 struct msqid_ds *host_md) 1508 { 1509 struct target_msqid_ds *target_md; 1510 1511 lock_user_struct(target_md, target_addr, 0); 1512 host_to_target_ipc_perm(target_addr,&(host_md->msg_perm)); 1513 target_md->msg_stime = tswapl(host_md->msg_stime); 1514 target_md->msg_rtime = tswapl(host_md->msg_rtime); 1515 target_md->msg_ctime = tswapl(host_md->msg_ctime); 1516 target_md->__msg_cbytes = tswapl(host_md->__msg_cbytes); 1517 target_md->msg_qnum = tswapl(host_md->msg_qnum); 1518 target_md->msg_qbytes = tswapl(host_md->msg_qbytes); 1519 target_md->msg_lspid = tswapl(host_md->msg_lspid); 1520 target_md->msg_lrpid = tswapl(host_md->msg_lrpid); 1521 unlock_user_struct(target_md, target_addr, 1); 1522 } 1523 1524 static inline long do_msgctl(long first, long second, long ptr) 1525 { 1526 struct msqid_ds dsarg; 1527 int cmd = second&0xff; 1528 long ret = 0; 1529 switch( cmd ) { 1530 case IPC_STAT: 1531 case IPC_SET: 1532 target_to_host_msqid_ds(&dsarg,ptr); 1533 ret = get_errno(msgctl(first, cmd, &dsarg)); 1534 host_to_target_msqid_ds(ptr,&dsarg); 1535 default: 1536 ret = get_errno(msgctl(first, cmd, &dsarg)); 1537 } 1538 return ret; 1539 } 1540 1541 struct target_msgbuf { 1542 target_ulong mtype; 1543 char mtext[1]; 1544 }; 1545 1546 static inline long do_msgsnd(long msqid, long msgp, long msgsz, long msgflg) 1547 { 1548 struct target_msgbuf *target_mb; 1549 struct msgbuf *host_mb; 1550 long ret = 0; 1551 1552 lock_user_struct(target_mb,msgp,0); 1553 host_mb = malloc(msgsz+sizeof(long)); 1554 host_mb->mtype = tswapl(target_mb->mtype); 1555 memcpy(host_mb->mtext,target_mb->mtext,msgsz); 1556 ret = get_errno(msgsnd(msqid, host_mb, msgsz, msgflg)); 1557 free(host_mb); 1558 unlock_user_struct(target_mb, msgp, 0); 1559 1560 return ret; 1561 } 1562 1563 static inline long do_msgrcv(long msqid, long msgp, long msgsz, long msgtype, long msgflg) 1564 { 1565 struct target_msgbuf *target_mb; 1566 struct msgbuf *host_mb; 1567 long ret = 0; 1568 1569 lock_user_struct(target_mb, msgp, 0); 1570 host_mb = malloc(msgsz+sizeof(long)); 1571 ret = get_errno(msgrcv(msqid, host_mb, msgsz, 1, msgflg)); 1572 if (ret > 0) 1573 memcpy(target_mb->mtext, host_mb->mtext, ret); 1574 target_mb->mtype = tswapl(host_mb->mtype); 1575 free(host_mb); 1576 unlock_user_struct(target_mb, msgp, 0); 1577 1578 return ret; 1579 } 1580 1581 /* ??? This only works with linear mappings. */ 1582 static long do_ipc(long call, long first, long second, long third, 1583 long ptr, long fifth) 1584 { 1585 int version; 1586 long ret = 0; 1587 unsigned long raddr; 1588 struct shmid_ds shm_info; 1589 int i; 1590 1591 version = call >> 16; 1592 call &= 0xffff; 1593 1594 switch (call) { 1595 case IPCOP_semop: 1596 ret = get_errno(semop(first,(struct sembuf *) ptr, second)); 1597 break; 1598 1599 case IPCOP_semget: 1600 ret = get_errno(semget(first, second, third)); 1601 break; 1602 1603 case IPCOP_semctl: 1604 ret = do_semctl(first, second, third, ptr); 1605 break; 1606 1607 case IPCOP_semtimedop: 1608 gemu_log("Unsupported ipc call: %ld (version %d)\n", call, version); 1609 ret = -ENOSYS; 1610 break; 1611 1612 case IPCOP_msgget: 1613 ret = get_errno(msgget(first, second)); 1614 break; 1615 1616 case IPCOP_msgsnd: 1617 ret = do_msgsnd(first, ptr, second, third); 1618 break; 1619 1620 case IPCOP_msgctl: 1621 ret = do_msgctl(first, second, ptr); 1622 break; 1623 1624 case IPCOP_msgrcv: 1625 { 1626 struct ipc_kludge 1627 { 1628 void *__unbounded msgp; 1629 long int msgtyp; 1630 }; 1631 1632 struct ipc_kludge *foo = (struct ipc_kludge *) ptr; 1633 struct msgbuf *msgp = (struct msgbuf *) foo->msgp; 1634 1635 ret = do_msgrcv(first, (long)msgp, second, 0, third); 1636 1637 } 1638 break; 1639 1640 case IPCOP_shmat: 1641 /* SHM_* flags are the same on all linux platforms */ 1642 ret = get_errno((long) shmat(first, (void *) ptr, second)); 1643 if (is_error(ret)) 1644 break; 1645 raddr = ret; 1646 /* find out the length of the shared memory segment */ 1647 1648 ret = get_errno(shmctl(first, IPC_STAT, &shm_info)); 1649 if (is_error(ret)) { 1650 /* can't get length, bail out */ 1651 shmdt((void *) raddr); 1652 break; 1653 } 1654 page_set_flags(raddr, raddr + shm_info.shm_segsz, 1655 PAGE_VALID | PAGE_READ | 1656 ((second & SHM_RDONLY)? 0: PAGE_WRITE)); 1657 for (i = 0; i < N_SHM_REGIONS; ++i) { 1658 if (shm_regions[i].start == 0) { 1659 shm_regions[i].start = raddr; 1660 shm_regions[i].size = shm_info.shm_segsz; 1661 break; 1662 } 1663 } 1664 if (put_user(raddr, (uint32_t *)third)) 1665 return -EFAULT; 1666 ret = 0; 1667 break; 1668 case IPCOP_shmdt: 1669 for (i = 0; i < N_SHM_REGIONS; ++i) { 1670 if (shm_regions[i].start == ptr) { 1671 shm_regions[i].start = 0; 1672 page_set_flags(ptr, shm_regions[i].size, 0); 1673 break; 1674 } 1675 } 1676 ret = get_errno(shmdt((void *) ptr)); 1677 break; 1678 1679 case IPCOP_shmget: 1680 /* IPC_* flag values are the same on all linux platforms */ 1681 ret = get_errno(shmget(first, second, third)); 1682 break; 1683 1684 /* IPC_* and SHM_* command values are the same on all linux platforms */ 1685 case IPCOP_shmctl: 1686 switch(second) { 1687 case IPC_RMID: 1688 case SHM_LOCK: 1689 case SHM_UNLOCK: 1690 ret = get_errno(shmctl(first, second, NULL)); 1691 break; 1692 default: 1693 goto unimplemented; 1694 } 1695 break; 1696 default: 1697 unimplemented: 1698 gemu_log("Unsupported ipc call: %ld (version %d)\n", call, version); 1699 ret = -ENOSYS; 1700 break; 1701 } 1702 return ret; 1703 } 1704 1705 /* kernel structure types definitions */ 1706 #define IFNAMSIZ 16 1707 1708 #define STRUCT(name, list...) STRUCT_ ## name, 1709 #define STRUCT_SPECIAL(name) STRUCT_ ## name, 1710 enum { 1711 #include "syscall_types.h" 1712 }; 1713 #undef STRUCT 1714 #undef STRUCT_SPECIAL 1715 1716 #define STRUCT(name, list...) const argtype struct_ ## name ## _def[] = { list, TYPE_NULL }; 1717 #define STRUCT_SPECIAL(name) 1718 #include "syscall_types.h" 1719 #undef STRUCT 1720 #undef STRUCT_SPECIAL 1721 1722 typedef struct IOCTLEntry { 1723 unsigned int target_cmd; 1724 unsigned int host_cmd; 1725 const char *name; 1726 int access; 1727 const argtype arg_type[5]; 1728 } IOCTLEntry; 1729 1730 #define IOC_R 0x0001 1731 #define IOC_W 0x0002 1732 #define IOC_RW (IOC_R | IOC_W) 1733 1734 #define MAX_STRUCT_SIZE 4096 1735 1736 IOCTLEntry ioctl_entries[] = { 1737 #define IOCTL(cmd, access, types...) \ 1738 { TARGET_ ## cmd, cmd, #cmd, access, { types } }, 1739 #include "ioctls.h" 1740 { 0, 0, }, 1741 }; 1742 1743 /* ??? Implement proper locking for ioctls. */ 1744 static long do_ioctl(long fd, long cmd, long arg) 1745 { 1746 const IOCTLEntry *ie; 1747 const argtype *arg_type; 1748 long ret; 1749 uint8_t buf_temp[MAX_STRUCT_SIZE]; 1750 int target_size; 1751 void *argptr; 1752 1753 ie = ioctl_entries; 1754 for(;;) { 1755 if (ie->target_cmd == 0) { 1756 gemu_log("Unsupported ioctl: cmd=0x%04lx\n", cmd); 1757 return -ENOSYS; 1758 } 1759 if (ie->target_cmd == cmd) 1760 break; 1761 ie++; 1762 } 1763 arg_type = ie->arg_type; 1764 #if defined(DEBUG) 1765 gemu_log("ioctl: cmd=0x%04lx (%s)\n", cmd, ie->name); 1766 #endif 1767 switch(arg_type[0]) { 1768 case TYPE_NULL: 1769 /* no argument */ 1770 ret = get_errno(ioctl(fd, ie->host_cmd)); 1771 break; 1772 case TYPE_PTRVOID: 1773 case TYPE_INT: 1774 /* int argment */ 1775 ret = get_errno(ioctl(fd, ie->host_cmd, arg)); 1776 break; 1777 case TYPE_PTR: 1778 arg_type++; 1779 target_size = thunk_type_size(arg_type, 0); 1780 switch(ie->access) { 1781 case IOC_R: 1782 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 1783 if (!is_error(ret)) { 1784 argptr = lock_user(arg, target_size, 0); 1785 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET); 1786 unlock_user(argptr, arg, target_size); 1787 } 1788 break; 1789 case IOC_W: 1790 argptr = lock_user(arg, target_size, 1); 1791 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST); 1792 unlock_user(argptr, arg, 0); 1793 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 1794 break; 1795 default: 1796 case IOC_RW: 1797 argptr = lock_user(arg, target_size, 1); 1798 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST); 1799 unlock_user(argptr, arg, 0); 1800 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 1801 if (!is_error(ret)) { 1802 argptr = lock_user(arg, target_size, 0); 1803 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET); 1804 unlock_user(argptr, arg, target_size); 1805 } 1806 break; 1807 } 1808 break; 1809 default: 1810 gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n", cmd, arg_type[0]); 1811 ret = -ENOSYS; 1812 break; 1813 } 1814 return ret; 1815 } 1816 1817 bitmask_transtbl iflag_tbl[] = { 1818 { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK }, 1819 { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT }, 1820 { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR }, 1821 { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK }, 1822 { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK }, 1823 { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP }, 1824 { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR }, 1825 { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR }, 1826 { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL }, 1827 { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC }, 1828 { TARGET_IXON, TARGET_IXON, IXON, IXON }, 1829 { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY }, 1830 { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF }, 1831 { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL }, 1832 { 0, 0, 0, 0 } 1833 }; 1834 1835 bitmask_transtbl oflag_tbl[] = { 1836 { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST }, 1837 { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC }, 1838 { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR }, 1839 { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL }, 1840 { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR }, 1841 { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET }, 1842 { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL }, 1843 { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL }, 1844 { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 }, 1845 { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 }, 1846 { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 }, 1847 { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 }, 1848 { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 }, 1849 { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 }, 1850 { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 }, 1851 { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 }, 1852 { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 }, 1853 { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 }, 1854 { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 }, 1855 { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 }, 1856 { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 }, 1857 { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 }, 1858 { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 }, 1859 { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 }, 1860 { 0, 0, 0, 0 } 1861 }; 1862 1863 bitmask_transtbl cflag_tbl[] = { 1864 { TARGET_CBAUD, TARGET_B0, CBAUD, B0 }, 1865 { TARGET_CBAUD, TARGET_B50, CBAUD, B50 }, 1866 { TARGET_CBAUD, TARGET_B75, CBAUD, B75 }, 1867 { TARGET_CBAUD, TARGET_B110, CBAUD, B110 }, 1868 { TARGET_CBAUD, TARGET_B134, CBAUD, B134 }, 1869 { TARGET_CBAUD, TARGET_B150, CBAUD, B150 }, 1870 { TARGET_CBAUD, TARGET_B200, CBAUD, B200 }, 1871 { TARGET_CBAUD, TARGET_B300, CBAUD, B300 }, 1872 { TARGET_CBAUD, TARGET_B600, CBAUD, B600 }, 1873 { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 }, 1874 { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 }, 1875 { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 }, 1876 { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 }, 1877 { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 }, 1878 { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 }, 1879 { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 }, 1880 { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 }, 1881 { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 }, 1882 { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 }, 1883 { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 }, 1884 { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 }, 1885 { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 }, 1886 { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 }, 1887 { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 }, 1888 { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB }, 1889 { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD }, 1890 { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB }, 1891 { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD }, 1892 { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL }, 1893 { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL }, 1894 { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS }, 1895 { 0, 0, 0, 0 } 1896 }; 1897 1898 bitmask_transtbl lflag_tbl[] = { 1899 { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG }, 1900 { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON }, 1901 { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE }, 1902 { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO }, 1903 { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE }, 1904 { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK }, 1905 { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL }, 1906 { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH }, 1907 { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP }, 1908 { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL }, 1909 { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT }, 1910 { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE }, 1911 { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO }, 1912 { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN }, 1913 { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN }, 1914 { 0, 0, 0, 0 } 1915 }; 1916 1917 static void target_to_host_termios (void *dst, const void *src) 1918 { 1919 struct host_termios *host = dst; 1920 const struct target_termios *target = src; 1921 1922 host->c_iflag = 1923 target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl); 1924 host->c_oflag = 1925 target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl); 1926 host->c_cflag = 1927 target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl); 1928 host->c_lflag = 1929 target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl); 1930 host->c_line = target->c_line; 1931 1932 host->c_cc[VINTR] = target->c_cc[TARGET_VINTR]; 1933 host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT]; 1934 host->c_cc[VERASE] = target->c_cc[TARGET_VERASE]; 1935 host->c_cc[VKILL] = target->c_cc[TARGET_VKILL]; 1936 host->c_cc[VEOF] = target->c_cc[TARGET_VEOF]; 1937 host->c_cc[VTIME] = target->c_cc[TARGET_VTIME]; 1938 host->c_cc[VMIN] = target->c_cc[TARGET_VMIN]; 1939 host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC]; 1940 host->c_cc[VSTART] = target->c_cc[TARGET_VSTART]; 1941 host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP]; 1942 host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP]; 1943 host->c_cc[VEOL] = target->c_cc[TARGET_VEOL]; 1944 host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT]; 1945 host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD]; 1946 host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE]; 1947 host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT]; 1948 host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2]; 1949 } 1950 1951 static void host_to_target_termios (void *dst, const void *src) 1952 { 1953 struct target_termios *target = dst; 1954 const struct host_termios *host = src; 1955 1956 target->c_iflag = 1957 tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl)); 1958 target->c_oflag = 1959 tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl)); 1960 target->c_cflag = 1961 tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl)); 1962 target->c_lflag = 1963 tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl)); 1964 target->c_line = host->c_line; 1965 1966 target->c_cc[TARGET_VINTR] = host->c_cc[VINTR]; 1967 target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT]; 1968 target->c_cc[TARGET_VERASE] = host->c_cc[VERASE]; 1969 target->c_cc[TARGET_VKILL] = host->c_cc[VKILL]; 1970 target->c_cc[TARGET_VEOF] = host->c_cc[VEOF]; 1971 target->c_cc[TARGET_VTIME] = host->c_cc[VTIME]; 1972 target->c_cc[TARGET_VMIN] = host->c_cc[VMIN]; 1973 target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC]; 1974 target->c_cc[TARGET_VSTART] = host->c_cc[VSTART]; 1975 target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP]; 1976 target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP]; 1977 target->c_cc[TARGET_VEOL] = host->c_cc[VEOL]; 1978 target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT]; 1979 target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD]; 1980 target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE]; 1981 target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT]; 1982 target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2]; 1983 } 1984 1985 StructEntry struct_termios_def = { 1986 .convert = { host_to_target_termios, target_to_host_termios }, 1987 .size = { sizeof(struct target_termios), sizeof(struct host_termios) }, 1988 .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) }, 1989 }; 1990 1991 static bitmask_transtbl mmap_flags_tbl[] = { 1992 { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED }, 1993 { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE }, 1994 { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED }, 1995 { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS }, 1996 { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN }, 1997 { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE }, 1998 { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE }, 1999 { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED }, 2000 { 0, 0, 0, 0 } 2001 }; 2002 2003 static bitmask_transtbl fcntl_flags_tbl[] = { 2004 { TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, }, 2005 { TARGET_O_ACCMODE, TARGET_O_RDWR, O_ACCMODE, O_RDWR, }, 2006 { TARGET_O_CREAT, TARGET_O_CREAT, O_CREAT, O_CREAT, }, 2007 { TARGET_O_EXCL, TARGET_O_EXCL, O_EXCL, O_EXCL, }, 2008 { TARGET_O_NOCTTY, TARGET_O_NOCTTY, O_NOCTTY, O_NOCTTY, }, 2009 { TARGET_O_TRUNC, TARGET_O_TRUNC, O_TRUNC, O_TRUNC, }, 2010 { TARGET_O_APPEND, TARGET_O_APPEND, O_APPEND, O_APPEND, }, 2011 { TARGET_O_NONBLOCK, TARGET_O_NONBLOCK, O_NONBLOCK, O_NONBLOCK, }, 2012 { TARGET_O_SYNC, TARGET_O_SYNC, O_SYNC, O_SYNC, }, 2013 { TARGET_FASYNC, TARGET_FASYNC, FASYNC, FASYNC, }, 2014 { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, }, 2015 { TARGET_O_NOFOLLOW, TARGET_O_NOFOLLOW, O_NOFOLLOW, O_NOFOLLOW, }, 2016 { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, }, 2017 #if defined(O_DIRECT) 2018 { TARGET_O_DIRECT, TARGET_O_DIRECT, O_DIRECT, O_DIRECT, }, 2019 #endif 2020 { 0, 0, 0, 0 } 2021 }; 2022 2023 #if defined(TARGET_I386) 2024 2025 /* NOTE: there is really one LDT for all the threads */ 2026 uint8_t *ldt_table; 2027 2028 static int read_ldt(target_ulong ptr, unsigned long bytecount) 2029 { 2030 int size; 2031 void *p; 2032 2033 if (!ldt_table) 2034 return 0; 2035 size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE; 2036 if (size > bytecount) 2037 size = bytecount; 2038 p = lock_user(ptr, size, 0); 2039 /* ??? Shoudl this by byteswapped? */ 2040 memcpy(p, ldt_table, size); 2041 unlock_user(p, ptr, size); 2042 return size; 2043 } 2044 2045 /* XXX: add locking support */ 2046 static int write_ldt(CPUX86State *env, 2047 target_ulong ptr, unsigned long bytecount, int oldmode) 2048 { 2049 struct target_modify_ldt_ldt_s ldt_info; 2050 struct target_modify_ldt_ldt_s *target_ldt_info; 2051 int seg_32bit, contents, read_exec_only, limit_in_pages; 2052 int seg_not_present, useable; 2053 uint32_t *lp, entry_1, entry_2; 2054 2055 if (bytecount != sizeof(ldt_info)) 2056 return -EINVAL; 2057 lock_user_struct(target_ldt_info, ptr, 1); 2058 ldt_info.entry_number = tswap32(target_ldt_info->entry_number); 2059 ldt_info.base_addr = tswapl(target_ldt_info->base_addr); 2060 ldt_info.limit = tswap32(target_ldt_info->limit); 2061 ldt_info.flags = tswap32(target_ldt_info->flags); 2062 unlock_user_struct(target_ldt_info, ptr, 0); 2063 2064 if (ldt_info.entry_number >= TARGET_LDT_ENTRIES) 2065 return -EINVAL; 2066 seg_32bit = ldt_info.flags & 1; 2067 contents = (ldt_info.flags >> 1) & 3; 2068 read_exec_only = (ldt_info.flags >> 3) & 1; 2069 limit_in_pages = (ldt_info.flags >> 4) & 1; 2070 seg_not_present = (ldt_info.flags >> 5) & 1; 2071 useable = (ldt_info.flags >> 6) & 1; 2072 2073 if (contents == 3) { 2074 if (oldmode) 2075 return -EINVAL; 2076 if (seg_not_present == 0) 2077 return -EINVAL; 2078 } 2079 /* allocate the LDT */ 2080 if (!ldt_table) { 2081 ldt_table = malloc(TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE); 2082 if (!ldt_table) 2083 return -ENOMEM; 2084 memset(ldt_table, 0, TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE); 2085 env->ldt.base = h2g(ldt_table); 2086 env->ldt.limit = 0xffff; 2087 } 2088 2089 /* NOTE: same code as Linux kernel */ 2090 /* Allow LDTs to be cleared by the user. */ 2091 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) { 2092 if (oldmode || 2093 (contents == 0 && 2094 read_exec_only == 1 && 2095 seg_32bit == 0 && 2096 limit_in_pages == 0 && 2097 seg_not_present == 1 && 2098 useable == 0 )) { 2099 entry_1 = 0; 2100 entry_2 = 0; 2101 goto install; 2102 } 2103 } 2104 2105 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) | 2106 (ldt_info.limit & 0x0ffff); 2107 entry_2 = (ldt_info.base_addr & 0xff000000) | 2108 ((ldt_info.base_addr & 0x00ff0000) >> 16) | 2109 (ldt_info.limit & 0xf0000) | 2110 ((read_exec_only ^ 1) << 9) | 2111 (contents << 10) | 2112 ((seg_not_present ^ 1) << 15) | 2113 (seg_32bit << 22) | 2114 (limit_in_pages << 23) | 2115 0x7000; 2116 if (!oldmode) 2117 entry_2 |= (useable << 20); 2118 2119 /* Install the new entry ... */ 2120 install: 2121 lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3)); 2122 lp[0] = tswap32(entry_1); 2123 lp[1] = tswap32(entry_2); 2124 return 0; 2125 } 2126 2127 /* specific and weird i386 syscalls */ 2128 int do_modify_ldt(CPUX86State *env, int func, target_ulong ptr, unsigned long bytecount) 2129 { 2130 int ret = -ENOSYS; 2131 2132 switch (func) { 2133 case 0: 2134 ret = read_ldt(ptr, bytecount); 2135 break; 2136 case 1: 2137 ret = write_ldt(env, ptr, bytecount, 1); 2138 break; 2139 case 0x11: 2140 ret = write_ldt(env, ptr, bytecount, 0); 2141 break; 2142 } 2143 return ret; 2144 } 2145 2146 #endif /* defined(TARGET_I386) */ 2147 2148 /* this stack is the equivalent of the kernel stack associated with a 2149 thread/process */ 2150 #define NEW_STACK_SIZE 8192 2151 2152 static int clone_func(void *arg) 2153 { 2154 CPUState *env = arg; 2155 cpu_loop(env); 2156 /* never exits */ 2157 return 0; 2158 } 2159 2160 int do_fork(CPUState *env, unsigned int flags, unsigned long newsp) 2161 { 2162 int ret; 2163 TaskState *ts; 2164 uint8_t *new_stack; 2165 CPUState *new_env; 2166 2167 if (flags & CLONE_VM) { 2168 ts = malloc(sizeof(TaskState) + NEW_STACK_SIZE); 2169 memset(ts, 0, sizeof(TaskState)); 2170 new_stack = ts->stack; 2171 ts->used = 1; 2172 /* add in task state list */ 2173 ts->next = first_task_state; 2174 first_task_state = ts; 2175 /* we create a new CPU instance. */ 2176 new_env = cpu_copy(env); 2177 #if defined(TARGET_I386) 2178 if (!newsp) 2179 newsp = env->regs[R_ESP]; 2180 new_env->regs[R_ESP] = newsp; 2181 new_env->regs[R_EAX] = 0; 2182 #elif defined(TARGET_ARM) 2183 if (!newsp) 2184 newsp = env->regs[13]; 2185 new_env->regs[13] = newsp; 2186 new_env->regs[0] = 0; 2187 #elif defined(TARGET_SPARC) 2188 if (!newsp) 2189 newsp = env->regwptr[22]; 2190 new_env->regwptr[22] = newsp; 2191 new_env->regwptr[0] = 0; 2192 /* XXXXX */ 2193 printf ("HELPME: %s:%d\n", __FILE__, __LINE__); 2194 #elif defined(TARGET_M68K) 2195 if (!newsp) 2196 newsp = env->aregs[7]; 2197 new_env->aregs[7] = newsp; 2198 new_env->dregs[0] = 0; 2199 /* ??? is this sufficient? */ 2200 #elif defined(TARGET_MIPS) 2201 if (!newsp) 2202 newsp = env->gpr[29][env->current_tc]; 2203 new_env->gpr[29][env->current_tc] = newsp; 2204 #elif defined(TARGET_PPC) 2205 if (!newsp) 2206 newsp = env->gpr[1]; 2207 new_env->gpr[1] = newsp; 2208 { 2209 int i; 2210 for (i = 7; i < 32; i++) 2211 new_env->gpr[i] = 0; 2212 } 2213 #elif defined(TARGET_SH4) 2214 if (!newsp) 2215 newsp = env->gregs[15]; 2216 new_env->gregs[15] = newsp; 2217 /* XXXXX */ 2218 #elif defined(TARGET_ALPHA) 2219 if (!newsp) 2220 newsp = env->ir[30]; 2221 new_env->ir[30] = newsp; 2222 /* ? */ 2223 { 2224 int i; 2225 for (i = 7; i < 30; i++) 2226 new_env->ir[i] = 0; 2227 } 2228 #else 2229 #error unsupported target CPU 2230 #endif 2231 new_env->opaque = ts; 2232 #ifdef __ia64__ 2233 ret = __clone2(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env); 2234 #else 2235 ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env); 2236 #endif 2237 } else { 2238 /* if no CLONE_VM, we consider it is a fork */ 2239 if ((flags & ~CSIGNAL) != 0) 2240 return -EINVAL; 2241 ret = fork(); 2242 } 2243 return ret; 2244 } 2245 2246 static long do_fcntl(int fd, int cmd, target_ulong arg) 2247 { 2248 struct flock fl; 2249 struct target_flock *target_fl; 2250 struct flock64 fl64; 2251 struct target_flock64 *target_fl64; 2252 long ret; 2253 2254 switch(cmd) { 2255 case TARGET_F_GETLK: 2256 lock_user_struct(target_fl, arg, 1); 2257 fl.l_type = tswap16(target_fl->l_type); 2258 fl.l_whence = tswap16(target_fl->l_whence); 2259 fl.l_start = tswapl(target_fl->l_start); 2260 fl.l_len = tswapl(target_fl->l_len); 2261 fl.l_pid = tswapl(target_fl->l_pid); 2262 unlock_user_struct(target_fl, arg, 0); 2263 ret = fcntl(fd, cmd, &fl); 2264 if (ret == 0) { 2265 lock_user_struct(target_fl, arg, 0); 2266 target_fl->l_type = tswap16(fl.l_type); 2267 target_fl->l_whence = tswap16(fl.l_whence); 2268 target_fl->l_start = tswapl(fl.l_start); 2269 target_fl->l_len = tswapl(fl.l_len); 2270 target_fl->l_pid = tswapl(fl.l_pid); 2271 unlock_user_struct(target_fl, arg, 1); 2272 } 2273 break; 2274 2275 case TARGET_F_SETLK: 2276 case TARGET_F_SETLKW: 2277 lock_user_struct(target_fl, arg, 1); 2278 fl.l_type = tswap16(target_fl->l_type); 2279 fl.l_whence = tswap16(target_fl->l_whence); 2280 fl.l_start = tswapl(target_fl->l_start); 2281 fl.l_len = tswapl(target_fl->l_len); 2282 fl.l_pid = tswapl(target_fl->l_pid); 2283 unlock_user_struct(target_fl, arg, 0); 2284 ret = fcntl(fd, cmd, &fl); 2285 break; 2286 2287 case TARGET_F_GETLK64: 2288 lock_user_struct(target_fl64, arg, 1); 2289 fl64.l_type = tswap16(target_fl64->l_type) >> 1; 2290 fl64.l_whence = tswap16(target_fl64->l_whence); 2291 fl64.l_start = tswapl(target_fl64->l_start); 2292 fl64.l_len = tswapl(target_fl64->l_len); 2293 fl64.l_pid = tswap16(target_fl64->l_pid); 2294 unlock_user_struct(target_fl64, arg, 0); 2295 ret = fcntl(fd, cmd >> 1, &fl64); 2296 if (ret == 0) { 2297 lock_user_struct(target_fl64, arg, 0); 2298 target_fl64->l_type = tswap16(fl64.l_type) >> 1; 2299 target_fl64->l_whence = tswap16(fl64.l_whence); 2300 target_fl64->l_start = tswapl(fl64.l_start); 2301 target_fl64->l_len = tswapl(fl64.l_len); 2302 target_fl64->l_pid = tswapl(fl64.l_pid); 2303 unlock_user_struct(target_fl64, arg, 1); 2304 } 2305 break; 2306 case TARGET_F_SETLK64: 2307 case TARGET_F_SETLKW64: 2308 lock_user_struct(target_fl64, arg, 1); 2309 fl64.l_type = tswap16(target_fl64->l_type) >> 1; 2310 fl64.l_whence = tswap16(target_fl64->l_whence); 2311 fl64.l_start = tswapl(target_fl64->l_start); 2312 fl64.l_len = tswapl(target_fl64->l_len); 2313 fl64.l_pid = tswap16(target_fl64->l_pid); 2314 unlock_user_struct(target_fl64, arg, 0); 2315 ret = fcntl(fd, cmd >> 1, &fl64); 2316 break; 2317 2318 case F_GETFL: 2319 ret = fcntl(fd, cmd, arg); 2320 ret = host_to_target_bitmask(ret, fcntl_flags_tbl); 2321 break; 2322 2323 case F_SETFL: 2324 ret = fcntl(fd, cmd, target_to_host_bitmask(arg, fcntl_flags_tbl)); 2325 break; 2326 2327 default: 2328 ret = fcntl(fd, cmd, arg); 2329 break; 2330 } 2331 return ret; 2332 } 2333 2334 #ifdef USE_UID16 2335 2336 static inline int high2lowuid(int uid) 2337 { 2338 if (uid > 65535) 2339 return 65534; 2340 else 2341 return uid; 2342 } 2343 2344 static inline int high2lowgid(int gid) 2345 { 2346 if (gid > 65535) 2347 return 65534; 2348 else 2349 return gid; 2350 } 2351 2352 static inline int low2highuid(int uid) 2353 { 2354 if ((int16_t)uid == -1) 2355 return -1; 2356 else 2357 return uid; 2358 } 2359 2360 static inline int low2highgid(int gid) 2361 { 2362 if ((int16_t)gid == -1) 2363 return -1; 2364 else 2365 return gid; 2366 } 2367 2368 #endif /* USE_UID16 */ 2369 2370 void syscall_init(void) 2371 { 2372 IOCTLEntry *ie; 2373 const argtype *arg_type; 2374 int size; 2375 2376 #define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def); 2377 #define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def); 2378 #include "syscall_types.h" 2379 #undef STRUCT 2380 #undef STRUCT_SPECIAL 2381 2382 /* we patch the ioctl size if necessary. We rely on the fact that 2383 no ioctl has all the bits at '1' in the size field */ 2384 ie = ioctl_entries; 2385 while (ie->target_cmd != 0) { 2386 if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) == 2387 TARGET_IOC_SIZEMASK) { 2388 arg_type = ie->arg_type; 2389 if (arg_type[0] != TYPE_PTR) { 2390 fprintf(stderr, "cannot patch size for ioctl 0x%x\n", 2391 ie->target_cmd); 2392 exit(1); 2393 } 2394 arg_type++; 2395 size = thunk_type_size(arg_type, 0); 2396 ie->target_cmd = (ie->target_cmd & 2397 ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) | 2398 (size << TARGET_IOC_SIZESHIFT); 2399 } 2400 /* automatic consistency check if same arch */ 2401 #if defined(__i386__) && defined(TARGET_I386) 2402 if (ie->target_cmd != ie->host_cmd) { 2403 fprintf(stderr, "ERROR: ioctl: target=0x%x host=0x%x\n", 2404 ie->target_cmd, ie->host_cmd); 2405 } 2406 #endif 2407 ie++; 2408 } 2409 } 2410 2411 static inline uint64_t target_offset64(uint32_t word0, uint32_t word1) 2412 { 2413 #ifdef TARGET_WORDS_BIG_ENDIAN 2414 return ((uint64_t)word0 << 32) | word1; 2415 #else 2416 return ((uint64_t)word1 << 32) | word0; 2417 #endif 2418 } 2419 2420 #ifdef TARGET_NR_truncate64 2421 static inline long target_truncate64(void *cpu_env, const char *arg1, 2422 long arg2, long arg3, long arg4) 2423 { 2424 #ifdef TARGET_ARM 2425 if (((CPUARMState *)cpu_env)->eabi) 2426 { 2427 arg2 = arg3; 2428 arg3 = arg4; 2429 } 2430 #endif 2431 return get_errno(truncate64(arg1, target_offset64(arg2, arg3))); 2432 } 2433 #endif 2434 2435 #ifdef TARGET_NR_ftruncate64 2436 static inline long target_ftruncate64(void *cpu_env, long arg1, long arg2, 2437 long arg3, long arg4) 2438 { 2439 #ifdef TARGET_ARM 2440 if (((CPUARMState *)cpu_env)->eabi) 2441 { 2442 arg2 = arg3; 2443 arg3 = arg4; 2444 } 2445 #endif 2446 return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3))); 2447 } 2448 #endif 2449 2450 static inline void target_to_host_timespec(struct timespec *host_ts, 2451 target_ulong target_addr) 2452 { 2453 struct target_timespec *target_ts; 2454 2455 lock_user_struct(target_ts, target_addr, 1); 2456 host_ts->tv_sec = tswapl(target_ts->tv_sec); 2457 host_ts->tv_nsec = tswapl(target_ts->tv_nsec); 2458 unlock_user_struct(target_ts, target_addr, 0); 2459 } 2460 2461 static inline void host_to_target_timespec(target_ulong target_addr, 2462 struct timespec *host_ts) 2463 { 2464 struct target_timespec *target_ts; 2465 2466 lock_user_struct(target_ts, target_addr, 0); 2467 target_ts->tv_sec = tswapl(host_ts->tv_sec); 2468 target_ts->tv_nsec = tswapl(host_ts->tv_nsec); 2469 unlock_user_struct(target_ts, target_addr, 1); 2470 } 2471 2472 long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3, 2473 long arg4, long arg5, long arg6) 2474 { 2475 long ret; 2476 struct stat st; 2477 struct statfs stfs; 2478 void *p; 2479 2480 #ifdef DEBUG 2481 gemu_log("syscall %d", num); 2482 #endif 2483 switch(num) { 2484 case TARGET_NR_exit: 2485 #ifdef HAVE_GPROF 2486 _mcleanup(); 2487 #endif 2488 gdb_exit(cpu_env, arg1); 2489 /* XXX: should free thread stack and CPU env */ 2490 _exit(arg1); 2491 ret = 0; /* avoid warning */ 2492 break; 2493 case TARGET_NR_read: 2494 page_unprotect_range(arg2, arg3); 2495 p = lock_user(arg2, arg3, 0); 2496 ret = get_errno(read(arg1, p, arg3)); 2497 unlock_user(p, arg2, ret); 2498 break; 2499 case TARGET_NR_write: 2500 p = lock_user(arg2, arg3, 1); 2501 ret = get_errno(write(arg1, p, arg3)); 2502 unlock_user(p, arg2, 0); 2503 break; 2504 case TARGET_NR_open: 2505 p = lock_user_string(arg1); 2506 ret = get_errno(open(path(p), 2507 target_to_host_bitmask(arg2, fcntl_flags_tbl), 2508 arg3)); 2509 unlock_user(p, arg1, 0); 2510 break; 2511 #if defined(TARGET_NR_openat) && defined(__NR_openat) 2512 case TARGET_NR_openat: 2513 if (!arg2) { 2514 ret = -EFAULT; 2515 goto fail; 2516 } 2517 p = lock_user_string(arg2); 2518 if (!access_ok(VERIFY_READ, p, 1)) 2519 ret = -EFAULT; 2520 else 2521 ret = get_errno(sys_openat(arg1, 2522 path(p), 2523 target_to_host_bitmask(arg3, fcntl_flags_tbl), 2524 arg4)); 2525 if (p) 2526 unlock_user(p, arg2, 0); 2527 break; 2528 #endif 2529 case TARGET_NR_close: 2530 ret = get_errno(close(arg1)); 2531 break; 2532 case TARGET_NR_brk: 2533 ret = do_brk(arg1); 2534 break; 2535 case TARGET_NR_fork: 2536 ret = get_errno(do_fork(cpu_env, SIGCHLD, 0)); 2537 break; 2538 #ifdef TARGET_NR_waitpid 2539 case TARGET_NR_waitpid: 2540 { 2541 int status; 2542 ret = get_errno(waitpid(arg1, &status, arg3)); 2543 if (!is_error(ret) && arg2) 2544 tput32(arg2, status); 2545 } 2546 break; 2547 #endif 2548 #ifdef TARGET_NR_creat /* not on alpha */ 2549 case TARGET_NR_creat: 2550 p = lock_user_string(arg1); 2551 ret = get_errno(creat(p, arg2)); 2552 unlock_user(p, arg1, 0); 2553 break; 2554 #endif 2555 case TARGET_NR_link: 2556 { 2557 void * p2; 2558 p = lock_user_string(arg1); 2559 p2 = lock_user_string(arg2); 2560 ret = get_errno(link(p, p2)); 2561 unlock_user(p2, arg2, 0); 2562 unlock_user(p, arg1, 0); 2563 } 2564 break; 2565 case TARGET_NR_unlink: 2566 p = lock_user_string(arg1); 2567 ret = get_errno(unlink(p)); 2568 unlock_user(p, arg1, 0); 2569 break; 2570 case TARGET_NR_execve: 2571 { 2572 char **argp, **envp; 2573 int argc, envc; 2574 target_ulong gp; 2575 target_ulong guest_argp; 2576 target_ulong guest_envp; 2577 target_ulong addr; 2578 char **q; 2579 2580 argc = 0; 2581 guest_argp = arg2; 2582 for (gp = guest_argp; tgetl(gp); gp++) 2583 argc++; 2584 envc = 0; 2585 guest_envp = arg3; 2586 for (gp = guest_envp; tgetl(gp); gp++) 2587 envc++; 2588 2589 argp = alloca((argc + 1) * sizeof(void *)); 2590 envp = alloca((envc + 1) * sizeof(void *)); 2591 2592 for (gp = guest_argp, q = argp; ; 2593 gp += sizeof(target_ulong), q++) { 2594 addr = tgetl(gp); 2595 if (!addr) 2596 break; 2597 *q = lock_user_string(addr); 2598 } 2599 *q = NULL; 2600 2601 for (gp = guest_envp, q = envp; ; 2602 gp += sizeof(target_ulong), q++) { 2603 addr = tgetl(gp); 2604 if (!addr) 2605 break; 2606 *q = lock_user_string(addr); 2607 } 2608 *q = NULL; 2609 2610 p = lock_user_string(arg1); 2611 ret = get_errno(execve(p, argp, envp)); 2612 unlock_user(p, arg1, 0); 2613 2614 for (gp = guest_argp, q = argp; *q; 2615 gp += sizeof(target_ulong), q++) { 2616 addr = tgetl(gp); 2617 unlock_user(*q, addr, 0); 2618 } 2619 for (gp = guest_envp, q = envp; *q; 2620 gp += sizeof(target_ulong), q++) { 2621 addr = tgetl(gp); 2622 unlock_user(*q, addr, 0); 2623 } 2624 } 2625 break; 2626 case TARGET_NR_chdir: 2627 p = lock_user_string(arg1); 2628 ret = get_errno(chdir(p)); 2629 unlock_user(p, arg1, 0); 2630 break; 2631 #ifdef TARGET_NR_time 2632 case TARGET_NR_time: 2633 { 2634 time_t host_time; 2635 ret = get_errno(time(&host_time)); 2636 if (!is_error(ret) && arg1) 2637 tputl(arg1, host_time); 2638 } 2639 break; 2640 #endif 2641 case TARGET_NR_mknod: 2642 p = lock_user_string(arg1); 2643 ret = get_errno(mknod(p, arg2, arg3)); 2644 unlock_user(p, arg1, 0); 2645 break; 2646 case TARGET_NR_chmod: 2647 p = lock_user_string(arg1); 2648 ret = get_errno(chmod(p, arg2)); 2649 unlock_user(p, arg1, 0); 2650 break; 2651 #ifdef TARGET_NR_break 2652 case TARGET_NR_break: 2653 goto unimplemented; 2654 #endif 2655 #ifdef TARGET_NR_oldstat 2656 case TARGET_NR_oldstat: 2657 goto unimplemented; 2658 #endif 2659 case TARGET_NR_lseek: 2660 ret = get_errno(lseek(arg1, arg2, arg3)); 2661 break; 2662 #ifdef TARGET_NR_getxpid 2663 case TARGET_NR_getxpid: 2664 #else 2665 case TARGET_NR_getpid: 2666 #endif 2667 ret = get_errno(getpid()); 2668 break; 2669 case TARGET_NR_mount: 2670 { 2671 /* need to look at the data field */ 2672 void *p2, *p3; 2673 p = lock_user_string(arg1); 2674 p2 = lock_user_string(arg2); 2675 p3 = lock_user_string(arg3); 2676 ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, (const void *)arg5)); 2677 unlock_user(p, arg1, 0); 2678 unlock_user(p2, arg2, 0); 2679 unlock_user(p3, arg3, 0); 2680 break; 2681 } 2682 #ifdef TARGET_NR_umount 2683 case TARGET_NR_umount: 2684 p = lock_user_string(arg1); 2685 ret = get_errno(umount(p)); 2686 unlock_user(p, arg1, 0); 2687 break; 2688 #endif 2689 #ifdef TARGET_NR_stime /* not on alpha */ 2690 case TARGET_NR_stime: 2691 { 2692 time_t host_time; 2693 host_time = tgetl(arg1); 2694 ret = get_errno(stime(&host_time)); 2695 } 2696 break; 2697 #endif 2698 case TARGET_NR_ptrace: 2699 goto unimplemented; 2700 #ifdef TARGET_NR_alarm /* not on alpha */ 2701 case TARGET_NR_alarm: 2702 ret = alarm(arg1); 2703 break; 2704 #endif 2705 #ifdef TARGET_NR_oldfstat 2706 case TARGET_NR_oldfstat: 2707 goto unimplemented; 2708 #endif 2709 #ifdef TARGET_NR_pause /* not on alpha */ 2710 case TARGET_NR_pause: 2711 ret = get_errno(pause()); 2712 break; 2713 #endif 2714 #ifdef TARGET_NR_utime 2715 case TARGET_NR_utime: 2716 { 2717 struct utimbuf tbuf, *host_tbuf; 2718 struct target_utimbuf *target_tbuf; 2719 if (arg2) { 2720 lock_user_struct(target_tbuf, arg2, 1); 2721 tbuf.actime = tswapl(target_tbuf->actime); 2722 tbuf.modtime = tswapl(target_tbuf->modtime); 2723 unlock_user_struct(target_tbuf, arg2, 0); 2724 host_tbuf = &tbuf; 2725 } else { 2726 host_tbuf = NULL; 2727 } 2728 p = lock_user_string(arg1); 2729 ret = get_errno(utime(p, host_tbuf)); 2730 unlock_user(p, arg1, 0); 2731 } 2732 break; 2733 #endif 2734 case TARGET_NR_utimes: 2735 { 2736 struct timeval *tvp, tv[2]; 2737 if (arg2) { 2738 target_to_host_timeval(&tv[0], arg2); 2739 target_to_host_timeval(&tv[1], 2740 arg2 + sizeof (struct target_timeval)); 2741 tvp = tv; 2742 } else { 2743 tvp = NULL; 2744 } 2745 p = lock_user_string(arg1); 2746 ret = get_errno(utimes(p, tvp)); 2747 unlock_user(p, arg1, 0); 2748 } 2749 break; 2750 #ifdef TARGET_NR_stty 2751 case TARGET_NR_stty: 2752 goto unimplemented; 2753 #endif 2754 #ifdef TARGET_NR_gtty 2755 case TARGET_NR_gtty: 2756 goto unimplemented; 2757 #endif 2758 case TARGET_NR_access: 2759 p = lock_user_string(arg1); 2760 ret = get_errno(access(p, arg2)); 2761 unlock_user(p, arg1, 0); 2762 break; 2763 #ifdef TARGET_NR_nice /* not on alpha */ 2764 case TARGET_NR_nice: 2765 ret = get_errno(nice(arg1)); 2766 break; 2767 #endif 2768 #ifdef TARGET_NR_ftime 2769 case TARGET_NR_ftime: 2770 goto unimplemented; 2771 #endif 2772 case TARGET_NR_sync: 2773 sync(); 2774 ret = 0; 2775 break; 2776 case TARGET_NR_kill: 2777 ret = get_errno(kill(arg1, arg2)); 2778 break; 2779 case TARGET_NR_rename: 2780 { 2781 void *p2; 2782 p = lock_user_string(arg1); 2783 p2 = lock_user_string(arg2); 2784 ret = get_errno(rename(p, p2)); 2785 unlock_user(p2, arg2, 0); 2786 unlock_user(p, arg1, 0); 2787 } 2788 break; 2789 case TARGET_NR_mkdir: 2790 p = lock_user_string(arg1); 2791 ret = get_errno(mkdir(p, arg2)); 2792 unlock_user(p, arg1, 0); 2793 break; 2794 #if defined(TARGET_NR_mkdirat) && defined(__NR_mkdirat) 2795 case TARGET_NR_mkdirat: 2796 if (!arg2) { 2797 ret = -EFAULT; 2798 goto fail; 2799 } 2800 p = lock_user_string(arg2); 2801 if (!access_ok(VERIFY_READ, p, 1)) 2802 ret = -EFAULT; 2803 else 2804 ret = get_errno(sys_mkdirat(arg1, p, arg3)); 2805 if (p) 2806 unlock_user(p, arg2, 0); 2807 break; 2808 #endif 2809 case TARGET_NR_rmdir: 2810 p = lock_user_string(arg1); 2811 ret = get_errno(rmdir(p)); 2812 unlock_user(p, arg1, 0); 2813 break; 2814 case TARGET_NR_dup: 2815 ret = get_errno(dup(arg1)); 2816 break; 2817 case TARGET_NR_pipe: 2818 { 2819 int host_pipe[2]; 2820 ret = get_errno(pipe(host_pipe)); 2821 if (!is_error(ret)) { 2822 #if defined(TARGET_MIPS) 2823 CPUMIPSState *env = (CPUMIPSState*)cpu_env; 2824 env->gpr[3][env->current_tc] = host_pipe[1]; 2825 ret = host_pipe[0]; 2826 #else 2827 tput32(arg1, host_pipe[0]); 2828 tput32(arg1 + 4, host_pipe[1]); 2829 #endif 2830 } 2831 } 2832 break; 2833 case TARGET_NR_times: 2834 { 2835 struct target_tms *tmsp; 2836 struct tms tms; 2837 ret = get_errno(times(&tms)); 2838 if (arg1) { 2839 tmsp = lock_user(arg1, sizeof(struct target_tms), 0); 2840 tmsp->tms_utime = tswapl(host_to_target_clock_t(tms.tms_utime)); 2841 tmsp->tms_stime = tswapl(host_to_target_clock_t(tms.tms_stime)); 2842 tmsp->tms_cutime = tswapl(host_to_target_clock_t(tms.tms_cutime)); 2843 tmsp->tms_cstime = tswapl(host_to_target_clock_t(tms.tms_cstime)); 2844 } 2845 if (!is_error(ret)) 2846 ret = host_to_target_clock_t(ret); 2847 } 2848 break; 2849 #ifdef TARGET_NR_prof 2850 case TARGET_NR_prof: 2851 goto unimplemented; 2852 #endif 2853 #ifdef TARGET_NR_signal 2854 case TARGET_NR_signal: 2855 goto unimplemented; 2856 #endif 2857 case TARGET_NR_acct: 2858 p = lock_user_string(arg1); 2859 ret = get_errno(acct(path(p))); 2860 unlock_user(p, arg1, 0); 2861 break; 2862 #ifdef TARGET_NR_umount2 /* not on alpha */ 2863 case TARGET_NR_umount2: 2864 p = lock_user_string(arg1); 2865 ret = get_errno(umount2(p, arg2)); 2866 unlock_user(p, arg1, 0); 2867 break; 2868 #endif 2869 #ifdef TARGET_NR_lock 2870 case TARGET_NR_lock: 2871 goto unimplemented; 2872 #endif 2873 case TARGET_NR_ioctl: 2874 ret = do_ioctl(arg1, arg2, arg3); 2875 break; 2876 case TARGET_NR_fcntl: 2877 ret = get_errno(do_fcntl(arg1, arg2, arg3)); 2878 break; 2879 #ifdef TARGET_NR_mpx 2880 case TARGET_NR_mpx: 2881 goto unimplemented; 2882 #endif 2883 case TARGET_NR_setpgid: 2884 ret = get_errno(setpgid(arg1, arg2)); 2885 break; 2886 #ifdef TARGET_NR_ulimit 2887 case TARGET_NR_ulimit: 2888 goto unimplemented; 2889 #endif 2890 #ifdef TARGET_NR_oldolduname 2891 case TARGET_NR_oldolduname: 2892 goto unimplemented; 2893 #endif 2894 case TARGET_NR_umask: 2895 ret = get_errno(umask(arg1)); 2896 break; 2897 case TARGET_NR_chroot: 2898 p = lock_user_string(arg1); 2899 ret = get_errno(chroot(p)); 2900 unlock_user(p, arg1, 0); 2901 break; 2902 case TARGET_NR_ustat: 2903 goto unimplemented; 2904 case TARGET_NR_dup2: 2905 ret = get_errno(dup2(arg1, arg2)); 2906 break; 2907 #ifdef TARGET_NR_getppid /* not on alpha */ 2908 case TARGET_NR_getppid: 2909 ret = get_errno(getppid()); 2910 break; 2911 #endif 2912 case TARGET_NR_getpgrp: 2913 ret = get_errno(getpgrp()); 2914 break; 2915 case TARGET_NR_setsid: 2916 ret = get_errno(setsid()); 2917 break; 2918 #ifdef TARGET_NR_sigaction 2919 case TARGET_NR_sigaction: 2920 { 2921 #if !defined(TARGET_MIPS) 2922 struct target_old_sigaction *old_act; 2923 struct target_sigaction act, oact, *pact; 2924 if (arg2) { 2925 lock_user_struct(old_act, arg2, 1); 2926 act._sa_handler = old_act->_sa_handler; 2927 target_siginitset(&act.sa_mask, old_act->sa_mask); 2928 act.sa_flags = old_act->sa_flags; 2929 act.sa_restorer = old_act->sa_restorer; 2930 unlock_user_struct(old_act, arg2, 0); 2931 pact = &act; 2932 } else { 2933 pact = NULL; 2934 } 2935 ret = get_errno(do_sigaction(arg1, pact, &oact)); 2936 if (!is_error(ret) && arg3) { 2937 lock_user_struct(old_act, arg3, 0); 2938 old_act->_sa_handler = oact._sa_handler; 2939 old_act->sa_mask = oact.sa_mask.sig[0]; 2940 old_act->sa_flags = oact.sa_flags; 2941 old_act->sa_restorer = oact.sa_restorer; 2942 unlock_user_struct(old_act, arg3, 1); 2943 } 2944 #else 2945 struct target_sigaction act, oact, *pact, *old_act; 2946 2947 if (arg2) { 2948 lock_user_struct(old_act, arg2, 1); 2949 act._sa_handler = old_act->_sa_handler; 2950 target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]); 2951 act.sa_flags = old_act->sa_flags; 2952 unlock_user_struct(old_act, arg2, 0); 2953 pact = &act; 2954 } else { 2955 pact = NULL; 2956 } 2957 2958 ret = get_errno(do_sigaction(arg1, pact, &oact)); 2959 2960 if (!is_error(ret) && arg3) { 2961 lock_user_struct(old_act, arg3, 0); 2962 old_act->_sa_handler = oact._sa_handler; 2963 old_act->sa_flags = oact.sa_flags; 2964 old_act->sa_mask.sig[0] = oact.sa_mask.sig[0]; 2965 old_act->sa_mask.sig[1] = 0; 2966 old_act->sa_mask.sig[2] = 0; 2967 old_act->sa_mask.sig[3] = 0; 2968 unlock_user_struct(old_act, arg3, 1); 2969 } 2970 #endif 2971 } 2972 break; 2973 #endif 2974 case TARGET_NR_rt_sigaction: 2975 { 2976 struct target_sigaction *act; 2977 struct target_sigaction *oact; 2978 2979 if (arg2) 2980 lock_user_struct(act, arg2, 1); 2981 else 2982 act = NULL; 2983 if (arg3) 2984 lock_user_struct(oact, arg3, 0); 2985 else 2986 oact = NULL; 2987 ret = get_errno(do_sigaction(arg1, act, oact)); 2988 if (arg2) 2989 unlock_user_struct(act, arg2, 0); 2990 if (arg3) 2991 unlock_user_struct(oact, arg3, 1); 2992 } 2993 break; 2994 #ifdef TARGET_NR_sgetmask /* not on alpha */ 2995 case TARGET_NR_sgetmask: 2996 { 2997 sigset_t cur_set; 2998 target_ulong target_set; 2999 sigprocmask(0, NULL, &cur_set); 3000 host_to_target_old_sigset(&target_set, &cur_set); 3001 ret = target_set; 3002 } 3003 break; 3004 #endif 3005 #ifdef TARGET_NR_ssetmask /* not on alpha */ 3006 case TARGET_NR_ssetmask: 3007 { 3008 sigset_t set, oset, cur_set; 3009 target_ulong target_set = arg1; 3010 sigprocmask(0, NULL, &cur_set); 3011 target_to_host_old_sigset(&set, &target_set); 3012 sigorset(&set, &set, &cur_set); 3013 sigprocmask(SIG_SETMASK, &set, &oset); 3014 host_to_target_old_sigset(&target_set, &oset); 3015 ret = target_set; 3016 } 3017 break; 3018 #endif 3019 #ifdef TARGET_NR_sigprocmask 3020 case TARGET_NR_sigprocmask: 3021 { 3022 int how = arg1; 3023 sigset_t set, oldset, *set_ptr; 3024 3025 if (arg2) { 3026 switch(how) { 3027 case TARGET_SIG_BLOCK: 3028 how = SIG_BLOCK; 3029 break; 3030 case TARGET_SIG_UNBLOCK: 3031 how = SIG_UNBLOCK; 3032 break; 3033 case TARGET_SIG_SETMASK: 3034 how = SIG_SETMASK; 3035 break; 3036 default: 3037 ret = -EINVAL; 3038 goto fail; 3039 } 3040 p = lock_user(arg2, sizeof(target_sigset_t), 1); 3041 target_to_host_old_sigset(&set, p); 3042 unlock_user(p, arg2, 0); 3043 set_ptr = &set; 3044 } else { 3045 how = 0; 3046 set_ptr = NULL; 3047 } 3048 ret = get_errno(sigprocmask(arg1, set_ptr, &oldset)); 3049 if (!is_error(ret) && arg3) { 3050 p = lock_user(arg3, sizeof(target_sigset_t), 0); 3051 host_to_target_old_sigset(p, &oldset); 3052 unlock_user(p, arg3, sizeof(target_sigset_t)); 3053 } 3054 } 3055 break; 3056 #endif 3057 case TARGET_NR_rt_sigprocmask: 3058 { 3059 int how = arg1; 3060 sigset_t set, oldset, *set_ptr; 3061 3062 if (arg2) { 3063 switch(how) { 3064 case TARGET_SIG_BLOCK: 3065 how = SIG_BLOCK; 3066 break; 3067 case TARGET_SIG_UNBLOCK: 3068 how = SIG_UNBLOCK; 3069 break; 3070 case TARGET_SIG_SETMASK: 3071 how = SIG_SETMASK; 3072 break; 3073 default: 3074 ret = -EINVAL; 3075 goto fail; 3076 } 3077 p = lock_user(arg2, sizeof(target_sigset_t), 1); 3078 target_to_host_sigset(&set, p); 3079 unlock_user(p, arg2, 0); 3080 set_ptr = &set; 3081 } else { 3082 how = 0; 3083 set_ptr = NULL; 3084 } 3085 ret = get_errno(sigprocmask(how, set_ptr, &oldset)); 3086 if (!is_error(ret) && arg3) { 3087 p = lock_user(arg3, sizeof(target_sigset_t), 0); 3088 host_to_target_sigset(p, &oldset); 3089 unlock_user(p, arg3, sizeof(target_sigset_t)); 3090 } 3091 } 3092 break; 3093 #ifdef TARGET_NR_sigpending 3094 case TARGET_NR_sigpending: 3095 { 3096 sigset_t set; 3097 ret = get_errno(sigpending(&set)); 3098 if (!is_error(ret)) { 3099 p = lock_user(arg1, sizeof(target_sigset_t), 0); 3100 host_to_target_old_sigset(p, &set); 3101 unlock_user(p, arg1, sizeof(target_sigset_t)); 3102 } 3103 } 3104 break; 3105 #endif 3106 case TARGET_NR_rt_sigpending: 3107 { 3108 sigset_t set; 3109 ret = get_errno(sigpending(&set)); 3110 if (!is_error(ret)) { 3111 p = lock_user(arg1, sizeof(target_sigset_t), 0); 3112 host_to_target_sigset(p, &set); 3113 unlock_user(p, arg1, sizeof(target_sigset_t)); 3114 } 3115 } 3116 break; 3117 #ifdef TARGET_NR_sigsuspend 3118 case TARGET_NR_sigsuspend: 3119 { 3120 sigset_t set; 3121 p = lock_user(arg1, sizeof(target_sigset_t), 1); 3122 target_to_host_old_sigset(&set, p); 3123 unlock_user(p, arg1, 0); 3124 ret = get_errno(sigsuspend(&set)); 3125 } 3126 break; 3127 #endif 3128 case TARGET_NR_rt_sigsuspend: 3129 { 3130 sigset_t set; 3131 p = lock_user(arg1, sizeof(target_sigset_t), 1); 3132 target_to_host_sigset(&set, p); 3133 unlock_user(p, arg1, 0); 3134 ret = get_errno(sigsuspend(&set)); 3135 } 3136 break; 3137 case TARGET_NR_rt_sigtimedwait: 3138 { 3139 sigset_t set; 3140 struct timespec uts, *puts; 3141 siginfo_t uinfo; 3142 3143 p = lock_user(arg1, sizeof(target_sigset_t), 1); 3144 target_to_host_sigset(&set, p); 3145 unlock_user(p, arg1, 0); 3146 if (arg3) { 3147 puts = &uts; 3148 target_to_host_timespec(puts, arg3); 3149 } else { 3150 puts = NULL; 3151 } 3152 ret = get_errno(sigtimedwait(&set, &uinfo, puts)); 3153 if (!is_error(ret) && arg2) { 3154 p = lock_user(arg2, sizeof(target_sigset_t), 0); 3155 host_to_target_siginfo(p, &uinfo); 3156 unlock_user(p, arg2, sizeof(target_sigset_t)); 3157 } 3158 } 3159 break; 3160 case TARGET_NR_rt_sigqueueinfo: 3161 { 3162 siginfo_t uinfo; 3163 p = lock_user(arg3, sizeof(target_sigset_t), 1); 3164 target_to_host_siginfo(&uinfo, p); 3165 unlock_user(p, arg1, 0); 3166 ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo)); 3167 } 3168 break; 3169 #ifdef TARGET_NR_sigreturn 3170 case TARGET_NR_sigreturn: 3171 /* NOTE: ret is eax, so not transcoding must be done */ 3172 ret = do_sigreturn(cpu_env); 3173 break; 3174 #endif 3175 case TARGET_NR_rt_sigreturn: 3176 /* NOTE: ret is eax, so not transcoding must be done */ 3177 ret = do_rt_sigreturn(cpu_env); 3178 break; 3179 case TARGET_NR_sethostname: 3180 p = lock_user_string(arg1); 3181 ret = get_errno(sethostname(p, arg2)); 3182 unlock_user(p, arg1, 0); 3183 break; 3184 case TARGET_NR_setrlimit: 3185 { 3186 /* XXX: convert resource ? */ 3187 int resource = arg1; 3188 struct target_rlimit *target_rlim; 3189 struct rlimit rlim; 3190 lock_user_struct(target_rlim, arg2, 1); 3191 rlim.rlim_cur = tswapl(target_rlim->rlim_cur); 3192 rlim.rlim_max = tswapl(target_rlim->rlim_max); 3193 unlock_user_struct(target_rlim, arg2, 0); 3194 ret = get_errno(setrlimit(resource, &rlim)); 3195 } 3196 break; 3197 case TARGET_NR_getrlimit: 3198 { 3199 /* XXX: convert resource ? */ 3200 int resource = arg1; 3201 struct target_rlimit *target_rlim; 3202 struct rlimit rlim; 3203 3204 ret = get_errno(getrlimit(resource, &rlim)); 3205 if (!is_error(ret)) { 3206 lock_user_struct(target_rlim, arg2, 0); 3207 rlim.rlim_cur = tswapl(target_rlim->rlim_cur); 3208 rlim.rlim_max = tswapl(target_rlim->rlim_max); 3209 unlock_user_struct(target_rlim, arg2, 1); 3210 } 3211 } 3212 break; 3213 case TARGET_NR_getrusage: 3214 { 3215 struct rusage rusage; 3216 ret = get_errno(getrusage(arg1, &rusage)); 3217 if (!is_error(ret)) { 3218 host_to_target_rusage(arg2, &rusage); 3219 } 3220 } 3221 break; 3222 case TARGET_NR_gettimeofday: 3223 { 3224 struct timeval tv; 3225 ret = get_errno(gettimeofday(&tv, NULL)); 3226 if (!is_error(ret)) { 3227 host_to_target_timeval(arg1, &tv); 3228 } 3229 } 3230 break; 3231 case TARGET_NR_settimeofday: 3232 { 3233 struct timeval tv; 3234 target_to_host_timeval(&tv, arg1); 3235 ret = get_errno(settimeofday(&tv, NULL)); 3236 } 3237 break; 3238 #ifdef TARGET_NR_select 3239 case TARGET_NR_select: 3240 { 3241 struct target_sel_arg_struct *sel; 3242 target_ulong inp, outp, exp, tvp; 3243 long nsel; 3244 3245 lock_user_struct(sel, arg1, 1); 3246 nsel = tswapl(sel->n); 3247 inp = tswapl(sel->inp); 3248 outp = tswapl(sel->outp); 3249 exp = tswapl(sel->exp); 3250 tvp = tswapl(sel->tvp); 3251 unlock_user_struct(sel, arg1, 0); 3252 ret = do_select(nsel, inp, outp, exp, tvp); 3253 } 3254 break; 3255 #endif 3256 case TARGET_NR_symlink: 3257 { 3258 void *p2; 3259 p = lock_user_string(arg1); 3260 p2 = lock_user_string(arg2); 3261 ret = get_errno(symlink(p, p2)); 3262 unlock_user(p2, arg2, 0); 3263 unlock_user(p, arg1, 0); 3264 } 3265 break; 3266 #ifdef TARGET_NR_oldlstat 3267 case TARGET_NR_oldlstat: 3268 goto unimplemented; 3269 #endif 3270 case TARGET_NR_readlink: 3271 { 3272 void *p2; 3273 p = lock_user_string(arg1); 3274 p2 = lock_user(arg2, arg3, 0); 3275 ret = get_errno(readlink(path(p), p2, arg3)); 3276 unlock_user(p2, arg2, ret); 3277 unlock_user(p, arg1, 0); 3278 } 3279 break; 3280 #ifdef TARGET_NR_uselib 3281 case TARGET_NR_uselib: 3282 goto unimplemented; 3283 #endif 3284 #ifdef TARGET_NR_swapon 3285 case TARGET_NR_swapon: 3286 p = lock_user_string(arg1); 3287 ret = get_errno(swapon(p, arg2)); 3288 unlock_user(p, arg1, 0); 3289 break; 3290 #endif 3291 case TARGET_NR_reboot: 3292 goto unimplemented; 3293 #ifdef TARGET_NR_readdir 3294 case TARGET_NR_readdir: 3295 goto unimplemented; 3296 #endif 3297 #ifdef TARGET_NR_mmap 3298 case TARGET_NR_mmap: 3299 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_M68K) 3300 { 3301 target_ulong *v; 3302 target_ulong v1, v2, v3, v4, v5, v6; 3303 v = lock_user(arg1, 6 * sizeof(target_ulong), 1); 3304 v1 = tswapl(v[0]); 3305 v2 = tswapl(v[1]); 3306 v3 = tswapl(v[2]); 3307 v4 = tswapl(v[3]); 3308 v5 = tswapl(v[4]); 3309 v6 = tswapl(v[5]); 3310 unlock_user(v, arg1, 0); 3311 ret = get_errno(target_mmap(v1, v2, v3, 3312 target_to_host_bitmask(v4, mmap_flags_tbl), 3313 v5, v6)); 3314 } 3315 #else 3316 ret = get_errno(target_mmap(arg1, arg2, arg3, 3317 target_to_host_bitmask(arg4, mmap_flags_tbl), 3318 arg5, 3319 arg6)); 3320 #endif 3321 break; 3322 #endif 3323 #ifdef TARGET_NR_mmap2 3324 case TARGET_NR_mmap2: 3325 #if defined(TARGET_SPARC) || defined(TARGET_MIPS) 3326 #define MMAP_SHIFT 12 3327 #else 3328 #define MMAP_SHIFT TARGET_PAGE_BITS 3329 #endif 3330 ret = get_errno(target_mmap(arg1, arg2, arg3, 3331 target_to_host_bitmask(arg4, mmap_flags_tbl), 3332 arg5, 3333 arg6 << MMAP_SHIFT)); 3334 break; 3335 #endif 3336 case TARGET_NR_munmap: 3337 ret = get_errno(target_munmap(arg1, arg2)); 3338 break; 3339 case TARGET_NR_mprotect: 3340 ret = get_errno(target_mprotect(arg1, arg2, arg3)); 3341 break; 3342 #ifdef TARGET_NR_mremap 3343 case TARGET_NR_mremap: 3344 ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5)); 3345 break; 3346 #endif 3347 /* ??? msync/mlock/munlock are broken for softmmu. */ 3348 #ifdef TARGET_NR_msync 3349 case TARGET_NR_msync: 3350 ret = get_errno(msync(g2h(arg1), arg2, arg3)); 3351 break; 3352 #endif 3353 #ifdef TARGET_NR_mlock 3354 case TARGET_NR_mlock: 3355 ret = get_errno(mlock(g2h(arg1), arg2)); 3356 break; 3357 #endif 3358 #ifdef TARGET_NR_munlock 3359 case TARGET_NR_munlock: 3360 ret = get_errno(munlock(g2h(arg1), arg2)); 3361 break; 3362 #endif 3363 #ifdef TARGET_NR_mlockall 3364 case TARGET_NR_mlockall: 3365 ret = get_errno(mlockall(arg1)); 3366 break; 3367 #endif 3368 #ifdef TARGET_NR_munlockall 3369 case TARGET_NR_munlockall: 3370 ret = get_errno(munlockall()); 3371 break; 3372 #endif 3373 case TARGET_NR_truncate: 3374 p = lock_user_string(arg1); 3375 ret = get_errno(truncate(p, arg2)); 3376 unlock_user(p, arg1, 0); 3377 break; 3378 case TARGET_NR_ftruncate: 3379 ret = get_errno(ftruncate(arg1, arg2)); 3380 break; 3381 case TARGET_NR_fchmod: 3382 ret = get_errno(fchmod(arg1, arg2)); 3383 break; 3384 case TARGET_NR_getpriority: 3385 ret = get_errno(getpriority(arg1, arg2)); 3386 break; 3387 case TARGET_NR_setpriority: 3388 ret = get_errno(setpriority(arg1, arg2, arg3)); 3389 break; 3390 #ifdef TARGET_NR_profil 3391 case TARGET_NR_profil: 3392 goto unimplemented; 3393 #endif 3394 case TARGET_NR_statfs: 3395 p = lock_user_string(arg1); 3396 ret = get_errno(statfs(path(p), &stfs)); 3397 unlock_user(p, arg1, 0); 3398 convert_statfs: 3399 if (!is_error(ret)) { 3400 struct target_statfs *target_stfs; 3401 3402 lock_user_struct(target_stfs, arg2, 0); 3403 /* ??? put_user is probably wrong. */ 3404 put_user(stfs.f_type, &target_stfs->f_type); 3405 put_user(stfs.f_bsize, &target_stfs->f_bsize); 3406 put_user(stfs.f_blocks, &target_stfs->f_blocks); 3407 put_user(stfs.f_bfree, &target_stfs->f_bfree); 3408 put_user(stfs.f_bavail, &target_stfs->f_bavail); 3409 put_user(stfs.f_files, &target_stfs->f_files); 3410 put_user(stfs.f_ffree, &target_stfs->f_ffree); 3411 put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]); 3412 put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]); 3413 put_user(stfs.f_namelen, &target_stfs->f_namelen); 3414 unlock_user_struct(target_stfs, arg2, 1); 3415 } 3416 break; 3417 case TARGET_NR_fstatfs: 3418 ret = get_errno(fstatfs(arg1, &stfs)); 3419 goto convert_statfs; 3420 #ifdef TARGET_NR_statfs64 3421 case TARGET_NR_statfs64: 3422 p = lock_user_string(arg1); 3423 ret = get_errno(statfs(path(p), &stfs)); 3424 unlock_user(p, arg1, 0); 3425 convert_statfs64: 3426 if (!is_error(ret)) { 3427 struct target_statfs64 *target_stfs; 3428 3429 lock_user_struct(target_stfs, arg3, 0); 3430 /* ??? put_user is probably wrong. */ 3431 put_user(stfs.f_type, &target_stfs->f_type); 3432 put_user(stfs.f_bsize, &target_stfs->f_bsize); 3433 put_user(stfs.f_blocks, &target_stfs->f_blocks); 3434 put_user(stfs.f_bfree, &target_stfs->f_bfree); 3435 put_user(stfs.f_bavail, &target_stfs->f_bavail); 3436 put_user(stfs.f_files, &target_stfs->f_files); 3437 put_user(stfs.f_ffree, &target_stfs->f_ffree); 3438 put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]); 3439 put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]); 3440 put_user(stfs.f_namelen, &target_stfs->f_namelen); 3441 unlock_user_struct(target_stfs, arg3, 0); 3442 } 3443 break; 3444 case TARGET_NR_fstatfs64: 3445 ret = get_errno(fstatfs(arg1, &stfs)); 3446 goto convert_statfs64; 3447 #endif 3448 #ifdef TARGET_NR_ioperm 3449 case TARGET_NR_ioperm: 3450 goto unimplemented; 3451 #endif 3452 #ifdef TARGET_NR_socketcall 3453 case TARGET_NR_socketcall: 3454 ret = do_socketcall(arg1, arg2); 3455 break; 3456 #endif 3457 #ifdef TARGET_NR_accept 3458 case TARGET_NR_accept: 3459 ret = do_accept(arg1, arg2, arg3); 3460 break; 3461 #endif 3462 #ifdef TARGET_NR_bind 3463 case TARGET_NR_bind: 3464 ret = do_bind(arg1, arg2, arg3); 3465 break; 3466 #endif 3467 #ifdef TARGET_NR_connect 3468 case TARGET_NR_connect: 3469 ret = do_connect(arg1, arg2, arg3); 3470 break; 3471 #endif 3472 #ifdef TARGET_NR_getpeername 3473 case TARGET_NR_getpeername: 3474 ret = do_getpeername(arg1, arg2, arg3); 3475 break; 3476 #endif 3477 #ifdef TARGET_NR_getsockname 3478 case TARGET_NR_getsockname: 3479 ret = do_getsockname(arg1, arg2, arg3); 3480 break; 3481 #endif 3482 #ifdef TARGET_NR_getsockopt 3483 case TARGET_NR_getsockopt: 3484 ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5); 3485 break; 3486 #endif 3487 #ifdef TARGET_NR_listen 3488 case TARGET_NR_listen: 3489 ret = get_errno(listen(arg1, arg2)); 3490 break; 3491 #endif 3492 #ifdef TARGET_NR_recv 3493 case TARGET_NR_recv: 3494 ret = do_recvfrom(arg1, arg2, arg3, arg4, 0, 0); 3495 break; 3496 #endif 3497 #ifdef TARGET_NR_recvfrom 3498 case TARGET_NR_recvfrom: 3499 ret = do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6); 3500 break; 3501 #endif 3502 #ifdef TARGET_NR_recvmsg 3503 case TARGET_NR_recvmsg: 3504 ret = do_sendrecvmsg(arg1, arg2, arg3, 0); 3505 break; 3506 #endif 3507 #ifdef TARGET_NR_send 3508 case TARGET_NR_send: 3509 ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0); 3510 break; 3511 #endif 3512 #ifdef TARGET_NR_sendmsg 3513 case TARGET_NR_sendmsg: 3514 ret = do_sendrecvmsg(arg1, arg2, arg3, 1); 3515 break; 3516 #endif 3517 #ifdef TARGET_NR_sendto 3518 case TARGET_NR_sendto: 3519 ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6); 3520 break; 3521 #endif 3522 #ifdef TARGET_NR_shutdown 3523 case TARGET_NR_shutdown: 3524 ret = get_errno(shutdown(arg1, arg2)); 3525 break; 3526 #endif 3527 #ifdef TARGET_NR_socket 3528 case TARGET_NR_socket: 3529 ret = do_socket(arg1, arg2, arg3); 3530 break; 3531 #endif 3532 #ifdef TARGET_NR_socketpair 3533 case TARGET_NR_socketpair: 3534 ret = do_socketpair(arg1, arg2, arg3, arg4); 3535 break; 3536 #endif 3537 #ifdef TARGET_NR_setsockopt 3538 case TARGET_NR_setsockopt: 3539 ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5); 3540 break; 3541 #endif 3542 3543 case TARGET_NR_syslog: 3544 p = lock_user_string(arg2); 3545 ret = get_errno(sys_syslog((int)arg1, p, (int)arg3)); 3546 unlock_user(p, arg2, 0); 3547 break; 3548 3549 case TARGET_NR_setitimer: 3550 { 3551 struct itimerval value, ovalue, *pvalue; 3552 3553 if (arg2) { 3554 pvalue = &value; 3555 target_to_host_timeval(&pvalue->it_interval, 3556 arg2); 3557 target_to_host_timeval(&pvalue->it_value, 3558 arg2 + sizeof(struct target_timeval)); 3559 } else { 3560 pvalue = NULL; 3561 } 3562 ret = get_errno(setitimer(arg1, pvalue, &ovalue)); 3563 if (!is_error(ret) && arg3) { 3564 host_to_target_timeval(arg3, 3565 &ovalue.it_interval); 3566 host_to_target_timeval(arg3 + sizeof(struct target_timeval), 3567 &ovalue.it_value); 3568 } 3569 } 3570 break; 3571 case TARGET_NR_getitimer: 3572 { 3573 struct itimerval value; 3574 3575 ret = get_errno(getitimer(arg1, &value)); 3576 if (!is_error(ret) && arg2) { 3577 host_to_target_timeval(arg2, 3578 &value.it_interval); 3579 host_to_target_timeval(arg2 + sizeof(struct target_timeval), 3580 &value.it_value); 3581 } 3582 } 3583 break; 3584 case TARGET_NR_stat: 3585 p = lock_user_string(arg1); 3586 ret = get_errno(stat(path(p), &st)); 3587 unlock_user(p, arg1, 0); 3588 goto do_stat; 3589 case TARGET_NR_lstat: 3590 p = lock_user_string(arg1); 3591 ret = get_errno(lstat(path(p), &st)); 3592 unlock_user(p, arg1, 0); 3593 goto do_stat; 3594 case TARGET_NR_fstat: 3595 { 3596 ret = get_errno(fstat(arg1, &st)); 3597 do_stat: 3598 if (!is_error(ret)) { 3599 struct target_stat *target_st; 3600 3601 lock_user_struct(target_st, arg2, 0); 3602 #if defined(TARGET_MIPS) || defined(TARGET_SPARC64) 3603 target_st->st_dev = tswap32(st.st_dev); 3604 #else 3605 target_st->st_dev = tswap16(st.st_dev); 3606 #endif 3607 target_st->st_ino = tswapl(st.st_ino); 3608 #if defined(TARGET_PPC) || defined(TARGET_MIPS) 3609 target_st->st_mode = tswapl(st.st_mode); /* XXX: check this */ 3610 target_st->st_uid = tswap32(st.st_uid); 3611 target_st->st_gid = tswap32(st.st_gid); 3612 #elif defined(TARGET_SPARC64) 3613 target_st->st_mode = tswap32(st.st_mode); 3614 target_st->st_uid = tswap32(st.st_uid); 3615 target_st->st_gid = tswap32(st.st_gid); 3616 #else 3617 target_st->st_mode = tswap16(st.st_mode); 3618 target_st->st_uid = tswap16(st.st_uid); 3619 target_st->st_gid = tswap16(st.st_gid); 3620 #endif 3621 #if defined(TARGET_MIPS) 3622 /* If this is the same on PPC, then just merge w/ the above ifdef */ 3623 target_st->st_nlink = tswapl(st.st_nlink); 3624 target_st->st_rdev = tswapl(st.st_rdev); 3625 #elif defined(TARGET_SPARC64) 3626 target_st->st_nlink = tswap32(st.st_nlink); 3627 target_st->st_rdev = tswap32(st.st_rdev); 3628 #else 3629 target_st->st_nlink = tswap16(st.st_nlink); 3630 target_st->st_rdev = tswap16(st.st_rdev); 3631 #endif 3632 target_st->st_size = tswapl(st.st_size); 3633 target_st->st_blksize = tswapl(st.st_blksize); 3634 target_st->st_blocks = tswapl(st.st_blocks); 3635 target_st->target_st_atime = tswapl(st.st_atime); 3636 target_st->target_st_mtime = tswapl(st.st_mtime); 3637 target_st->target_st_ctime = tswapl(st.st_ctime); 3638 unlock_user_struct(target_st, arg2, 1); 3639 } 3640 } 3641 break; 3642 #ifdef TARGET_NR_olduname 3643 case TARGET_NR_olduname: 3644 goto unimplemented; 3645 #endif 3646 #ifdef TARGET_NR_iopl 3647 case TARGET_NR_iopl: 3648 goto unimplemented; 3649 #endif 3650 case TARGET_NR_vhangup: 3651 ret = get_errno(vhangup()); 3652 break; 3653 #ifdef TARGET_NR_idle 3654 case TARGET_NR_idle: 3655 goto unimplemented; 3656 #endif 3657 #ifdef TARGET_NR_syscall 3658 case TARGET_NR_syscall: 3659 ret = do_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,0); 3660 break; 3661 #endif 3662 case TARGET_NR_wait4: 3663 { 3664 int status; 3665 target_long status_ptr = arg2; 3666 struct rusage rusage, *rusage_ptr; 3667 target_ulong target_rusage = arg4; 3668 if (target_rusage) 3669 rusage_ptr = &rusage; 3670 else 3671 rusage_ptr = NULL; 3672 ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr)); 3673 if (!is_error(ret)) { 3674 if (status_ptr) 3675 tputl(status_ptr, status); 3676 if (target_rusage) { 3677 host_to_target_rusage(target_rusage, &rusage); 3678 } 3679 } 3680 } 3681 break; 3682 #ifdef TARGET_NR_swapoff 3683 case TARGET_NR_swapoff: 3684 p = lock_user_string(arg1); 3685 ret = get_errno(swapoff(p)); 3686 unlock_user(p, arg1, 0); 3687 break; 3688 #endif 3689 case TARGET_NR_sysinfo: 3690 { 3691 struct target_sysinfo *target_value; 3692 struct sysinfo value; 3693 ret = get_errno(sysinfo(&value)); 3694 if (!is_error(ret) && arg1) 3695 { 3696 /* ??? __put_user is probably wrong. */ 3697 lock_user_struct(target_value, arg1, 0); 3698 __put_user(value.uptime, &target_value->uptime); 3699 __put_user(value.loads[0], &target_value->loads[0]); 3700 __put_user(value.loads[1], &target_value->loads[1]); 3701 __put_user(value.loads[2], &target_value->loads[2]); 3702 __put_user(value.totalram, &target_value->totalram); 3703 __put_user(value.freeram, &target_value->freeram); 3704 __put_user(value.sharedram, &target_value->sharedram); 3705 __put_user(value.bufferram, &target_value->bufferram); 3706 __put_user(value.totalswap, &target_value->totalswap); 3707 __put_user(value.freeswap, &target_value->freeswap); 3708 __put_user(value.procs, &target_value->procs); 3709 __put_user(value.totalhigh, &target_value->totalhigh); 3710 __put_user(value.freehigh, &target_value->freehigh); 3711 __put_user(value.mem_unit, &target_value->mem_unit); 3712 unlock_user_struct(target_value, arg1, 1); 3713 } 3714 } 3715 break; 3716 #ifdef TARGET_NR_ipc 3717 case TARGET_NR_ipc: 3718 ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6); 3719 break; 3720 #endif 3721 case TARGET_NR_fsync: 3722 ret = get_errno(fsync(arg1)); 3723 break; 3724 case TARGET_NR_clone: 3725 ret = get_errno(do_fork(cpu_env, arg1, arg2)); 3726 break; 3727 #ifdef __NR_exit_group 3728 /* new thread calls */ 3729 case TARGET_NR_exit_group: 3730 gdb_exit(cpu_env, arg1); 3731 ret = get_errno(exit_group(arg1)); 3732 break; 3733 #endif 3734 case TARGET_NR_setdomainname: 3735 p = lock_user_string(arg1); 3736 ret = get_errno(setdomainname(p, arg2)); 3737 unlock_user(p, arg1, 0); 3738 break; 3739 case TARGET_NR_uname: 3740 /* no need to transcode because we use the linux syscall */ 3741 { 3742 struct new_utsname * buf; 3743 3744 lock_user_struct(buf, arg1, 0); 3745 ret = get_errno(sys_uname(buf)); 3746 if (!is_error(ret)) { 3747 /* Overrite the native machine name with whatever is being 3748 emulated. */ 3749 strcpy (buf->machine, UNAME_MACHINE); 3750 /* Allow the user to override the reported release. */ 3751 if (qemu_uname_release && *qemu_uname_release) 3752 strcpy (buf->release, qemu_uname_release); 3753 } 3754 unlock_user_struct(buf, arg1, 1); 3755 } 3756 break; 3757 #ifdef TARGET_I386 3758 case TARGET_NR_modify_ldt: 3759 ret = get_errno(do_modify_ldt(cpu_env, arg1, arg2, arg3)); 3760 break; 3761 #if !defined(TARGET_X86_64) 3762 case TARGET_NR_vm86old: 3763 goto unimplemented; 3764 case TARGET_NR_vm86: 3765 ret = do_vm86(cpu_env, arg1, arg2); 3766 break; 3767 #endif 3768 #endif 3769 case TARGET_NR_adjtimex: 3770 goto unimplemented; 3771 #ifdef TARGET_NR_create_module 3772 case TARGET_NR_create_module: 3773 #endif 3774 case TARGET_NR_init_module: 3775 case TARGET_NR_delete_module: 3776 #ifdef TARGET_NR_get_kernel_syms 3777 case TARGET_NR_get_kernel_syms: 3778 #endif 3779 goto unimplemented; 3780 case TARGET_NR_quotactl: 3781 goto unimplemented; 3782 case TARGET_NR_getpgid: 3783 ret = get_errno(getpgid(arg1)); 3784 break; 3785 case TARGET_NR_fchdir: 3786 ret = get_errno(fchdir(arg1)); 3787 break; 3788 #ifdef TARGET_NR_bdflush /* not on x86_64 */ 3789 case TARGET_NR_bdflush: 3790 goto unimplemented; 3791 #endif 3792 #ifdef TARGET_NR_sysfs 3793 case TARGET_NR_sysfs: 3794 goto unimplemented; 3795 #endif 3796 case TARGET_NR_personality: 3797 ret = get_errno(personality(arg1)); 3798 break; 3799 #ifdef TARGET_NR_afs_syscall 3800 case TARGET_NR_afs_syscall: 3801 goto unimplemented; 3802 #endif 3803 #ifdef TARGET_NR__llseek /* Not on alpha */ 3804 case TARGET_NR__llseek: 3805 { 3806 #if defined (__x86_64__) 3807 ret = get_errno(lseek(arg1, ((uint64_t )arg2 << 32) | arg3, arg5)); 3808 tput64(arg4, ret); 3809 #else 3810 int64_t res; 3811 ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5)); 3812 tput64(arg4, res); 3813 #endif 3814 } 3815 break; 3816 #endif 3817 case TARGET_NR_getdents: 3818 #if TARGET_LONG_SIZE != 4 3819 goto unimplemented; 3820 #warning not supported 3821 #elif TARGET_LONG_SIZE == 4 && HOST_LONG_SIZE == 8 3822 { 3823 struct target_dirent *target_dirp; 3824 struct dirent *dirp; 3825 long count = arg3; 3826 3827 dirp = malloc(count); 3828 if (!dirp) 3829 return -ENOMEM; 3830 3831 ret = get_errno(sys_getdents(arg1, dirp, count)); 3832 if (!is_error(ret)) { 3833 struct dirent *de; 3834 struct target_dirent *tde; 3835 int len = ret; 3836 int reclen, treclen; 3837 int count1, tnamelen; 3838 3839 count1 = 0; 3840 de = dirp; 3841 target_dirp = lock_user(arg2, count, 0); 3842 tde = target_dirp; 3843 while (len > 0) { 3844 reclen = de->d_reclen; 3845 treclen = reclen - (2 * (sizeof(long) - sizeof(target_long))); 3846 tde->d_reclen = tswap16(treclen); 3847 tde->d_ino = tswapl(de->d_ino); 3848 tde->d_off = tswapl(de->d_off); 3849 tnamelen = treclen - (2 * sizeof(target_long) + 2); 3850 if (tnamelen > 256) 3851 tnamelen = 256; 3852 /* XXX: may not be correct */ 3853 strncpy(tde->d_name, de->d_name, tnamelen); 3854 de = (struct dirent *)((char *)de + reclen); 3855 len -= reclen; 3856 tde = (struct target_dirent *)((char *)tde + treclen); 3857 count1 += treclen; 3858 } 3859 ret = count1; 3860 } 3861 unlock_user(target_dirp, arg2, ret); 3862 free(dirp); 3863 } 3864 #else 3865 { 3866 struct dirent *dirp; 3867 long count = arg3; 3868 3869 dirp = lock_user(arg2, count, 0); 3870 ret = get_errno(sys_getdents(arg1, dirp, count)); 3871 if (!is_error(ret)) { 3872 struct dirent *de; 3873 int len = ret; 3874 int reclen; 3875 de = dirp; 3876 while (len > 0) { 3877 reclen = de->d_reclen; 3878 if (reclen > len) 3879 break; 3880 de->d_reclen = tswap16(reclen); 3881 tswapls(&de->d_ino); 3882 tswapls(&de->d_off); 3883 de = (struct dirent *)((char *)de + reclen); 3884 len -= reclen; 3885 } 3886 } 3887 unlock_user(dirp, arg2, ret); 3888 } 3889 #endif 3890 break; 3891 #if defined(TARGET_NR_getdents64) && defined(__NR_getdents64) 3892 case TARGET_NR_getdents64: 3893 { 3894 struct dirent64 *dirp; 3895 long count = arg3; 3896 dirp = lock_user(arg2, count, 0); 3897 ret = get_errno(sys_getdents64(arg1, dirp, count)); 3898 if (!is_error(ret)) { 3899 struct dirent64 *de; 3900 int len = ret; 3901 int reclen; 3902 de = dirp; 3903 while (len > 0) { 3904 reclen = de->d_reclen; 3905 if (reclen > len) 3906 break; 3907 de->d_reclen = tswap16(reclen); 3908 tswap64s(&de->d_ino); 3909 tswap64s(&de->d_off); 3910 de = (struct dirent64 *)((char *)de + reclen); 3911 len -= reclen; 3912 } 3913 } 3914 unlock_user(dirp, arg2, ret); 3915 } 3916 break; 3917 #endif /* TARGET_NR_getdents64 */ 3918 #ifdef TARGET_NR__newselect 3919 case TARGET_NR__newselect: 3920 ret = do_select(arg1, arg2, arg3, arg4, arg5); 3921 break; 3922 #endif 3923 #ifdef TARGET_NR_poll 3924 case TARGET_NR_poll: 3925 { 3926 struct target_pollfd *target_pfd; 3927 unsigned int nfds = arg2; 3928 int timeout = arg3; 3929 struct pollfd *pfd; 3930 unsigned int i; 3931 3932 target_pfd = lock_user(arg1, sizeof(struct target_pollfd) * nfds, 1); 3933 pfd = alloca(sizeof(struct pollfd) * nfds); 3934 for(i = 0; i < nfds; i++) { 3935 pfd[i].fd = tswap32(target_pfd[i].fd); 3936 pfd[i].events = tswap16(target_pfd[i].events); 3937 } 3938 ret = get_errno(poll(pfd, nfds, timeout)); 3939 if (!is_error(ret)) { 3940 for(i = 0; i < nfds; i++) { 3941 target_pfd[i].revents = tswap16(pfd[i].revents); 3942 } 3943 ret += nfds * (sizeof(struct target_pollfd) 3944 - sizeof(struct pollfd)); 3945 } 3946 unlock_user(target_pfd, arg1, ret); 3947 } 3948 break; 3949 #endif 3950 case TARGET_NR_flock: 3951 /* NOTE: the flock constant seems to be the same for every 3952 Linux platform */ 3953 ret = get_errno(flock(arg1, arg2)); 3954 break; 3955 case TARGET_NR_readv: 3956 { 3957 int count = arg3; 3958 struct iovec *vec; 3959 3960 vec = alloca(count * sizeof(struct iovec)); 3961 lock_iovec(vec, arg2, count, 0); 3962 ret = get_errno(readv(arg1, vec, count)); 3963 unlock_iovec(vec, arg2, count, 1); 3964 } 3965 break; 3966 case TARGET_NR_writev: 3967 { 3968 int count = arg3; 3969 struct iovec *vec; 3970 3971 vec = alloca(count * sizeof(struct iovec)); 3972 lock_iovec(vec, arg2, count, 1); 3973 ret = get_errno(writev(arg1, vec, count)); 3974 unlock_iovec(vec, arg2, count, 0); 3975 } 3976 break; 3977 case TARGET_NR_getsid: 3978 ret = get_errno(getsid(arg1)); 3979 break; 3980 #if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */ 3981 case TARGET_NR_fdatasync: 3982 ret = get_errno(fdatasync(arg1)); 3983 break; 3984 #endif 3985 case TARGET_NR__sysctl: 3986 /* We don't implement this, but ENODIR is always a safe 3987 return value. */ 3988 return -ENOTDIR; 3989 case TARGET_NR_sched_setparam: 3990 { 3991 struct sched_param *target_schp; 3992 struct sched_param schp; 3993 3994 lock_user_struct(target_schp, arg2, 1); 3995 schp.sched_priority = tswap32(target_schp->sched_priority); 3996 unlock_user_struct(target_schp, arg2, 0); 3997 ret = get_errno(sched_setparam(arg1, &schp)); 3998 } 3999 break; 4000 case TARGET_NR_sched_getparam: 4001 { 4002 struct sched_param *target_schp; 4003 struct sched_param schp; 4004 ret = get_errno(sched_getparam(arg1, &schp)); 4005 if (!is_error(ret)) { 4006 lock_user_struct(target_schp, arg2, 0); 4007 target_schp->sched_priority = tswap32(schp.sched_priority); 4008 unlock_user_struct(target_schp, arg2, 1); 4009 } 4010 } 4011 break; 4012 case TARGET_NR_sched_setscheduler: 4013 { 4014 struct sched_param *target_schp; 4015 struct sched_param schp; 4016 lock_user_struct(target_schp, arg3, 1); 4017 schp.sched_priority = tswap32(target_schp->sched_priority); 4018 unlock_user_struct(target_schp, arg3, 0); 4019 ret = get_errno(sched_setscheduler(arg1, arg2, &schp)); 4020 } 4021 break; 4022 case TARGET_NR_sched_getscheduler: 4023 ret = get_errno(sched_getscheduler(arg1)); 4024 break; 4025 case TARGET_NR_sched_yield: 4026 ret = get_errno(sched_yield()); 4027 break; 4028 case TARGET_NR_sched_get_priority_max: 4029 ret = get_errno(sched_get_priority_max(arg1)); 4030 break; 4031 case TARGET_NR_sched_get_priority_min: 4032 ret = get_errno(sched_get_priority_min(arg1)); 4033 break; 4034 case TARGET_NR_sched_rr_get_interval: 4035 { 4036 struct timespec ts; 4037 ret = get_errno(sched_rr_get_interval(arg1, &ts)); 4038 if (!is_error(ret)) { 4039 host_to_target_timespec(arg2, &ts); 4040 } 4041 } 4042 break; 4043 case TARGET_NR_nanosleep: 4044 { 4045 struct timespec req, rem; 4046 target_to_host_timespec(&req, arg1); 4047 ret = get_errno(nanosleep(&req, &rem)); 4048 if (is_error(ret) && arg2) { 4049 host_to_target_timespec(arg2, &rem); 4050 } 4051 } 4052 break; 4053 #ifdef TARGET_NR_query_module 4054 case TARGET_NR_query_module: 4055 goto unimplemented; 4056 #endif 4057 #ifdef TARGET_NR_nfsservctl 4058 case TARGET_NR_nfsservctl: 4059 goto unimplemented; 4060 #endif 4061 case TARGET_NR_prctl: 4062 switch (arg1) 4063 { 4064 case PR_GET_PDEATHSIG: 4065 { 4066 int deathsig; 4067 ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5)); 4068 if (!is_error(ret) && arg2) 4069 tput32(arg2, deathsig); 4070 } 4071 break; 4072 default: 4073 ret = get_errno(prctl(arg1, arg2, arg3, arg4, arg5)); 4074 break; 4075 } 4076 break; 4077 #ifdef TARGET_NR_pread 4078 case TARGET_NR_pread: 4079 page_unprotect_range(arg2, arg3); 4080 p = lock_user(arg2, arg3, 0); 4081 ret = get_errno(pread(arg1, p, arg3, arg4)); 4082 unlock_user(p, arg2, ret); 4083 break; 4084 case TARGET_NR_pwrite: 4085 p = lock_user(arg2, arg3, 1); 4086 ret = get_errno(pwrite(arg1, p, arg3, arg4)); 4087 unlock_user(p, arg2, 0); 4088 break; 4089 #endif 4090 case TARGET_NR_getcwd: 4091 p = lock_user(arg1, arg2, 0); 4092 ret = get_errno(sys_getcwd1(p, arg2)); 4093 unlock_user(p, arg1, ret); 4094 break; 4095 case TARGET_NR_capget: 4096 goto unimplemented; 4097 case TARGET_NR_capset: 4098 goto unimplemented; 4099 case TARGET_NR_sigaltstack: 4100 goto unimplemented; 4101 case TARGET_NR_sendfile: 4102 goto unimplemented; 4103 #ifdef TARGET_NR_getpmsg 4104 case TARGET_NR_getpmsg: 4105 goto unimplemented; 4106 #endif 4107 #ifdef TARGET_NR_putpmsg 4108 case TARGET_NR_putpmsg: 4109 goto unimplemented; 4110 #endif 4111 #ifdef TARGET_NR_vfork 4112 case TARGET_NR_vfork: 4113 ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0)); 4114 break; 4115 #endif 4116 #ifdef TARGET_NR_ugetrlimit 4117 case TARGET_NR_ugetrlimit: 4118 { 4119 struct rlimit rlim; 4120 ret = get_errno(getrlimit(arg1, &rlim)); 4121 if (!is_error(ret)) { 4122 struct target_rlimit *target_rlim; 4123 lock_user_struct(target_rlim, arg2, 0); 4124 target_rlim->rlim_cur = tswapl(rlim.rlim_cur); 4125 target_rlim->rlim_max = tswapl(rlim.rlim_max); 4126 unlock_user_struct(target_rlim, arg2, 1); 4127 } 4128 break; 4129 } 4130 #endif 4131 #ifdef TARGET_NR_truncate64 4132 case TARGET_NR_truncate64: 4133 p = lock_user_string(arg1); 4134 ret = target_truncate64(cpu_env, p, arg2, arg3, arg4); 4135 unlock_user(p, arg1, 0); 4136 break; 4137 #endif 4138 #ifdef TARGET_NR_ftruncate64 4139 case TARGET_NR_ftruncate64: 4140 ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4); 4141 break; 4142 #endif 4143 #ifdef TARGET_NR_stat64 4144 case TARGET_NR_stat64: 4145 p = lock_user_string(arg1); 4146 ret = get_errno(stat(path(p), &st)); 4147 unlock_user(p, arg1, 0); 4148 goto do_stat64; 4149 #endif 4150 #ifdef TARGET_NR_lstat64 4151 case TARGET_NR_lstat64: 4152 p = lock_user_string(arg1); 4153 ret = get_errno(lstat(path(p), &st)); 4154 unlock_user(p, arg1, 0); 4155 goto do_stat64; 4156 #endif 4157 #ifdef TARGET_NR_fstat64 4158 case TARGET_NR_fstat64: 4159 { 4160 ret = get_errno(fstat(arg1, &st)); 4161 do_stat64: 4162 if (!is_error(ret)) { 4163 #ifdef TARGET_ARM 4164 if (((CPUARMState *)cpu_env)->eabi) { 4165 struct target_eabi_stat64 *target_st; 4166 lock_user_struct(target_st, arg2, 1); 4167 memset(target_st, 0, sizeof(struct target_eabi_stat64)); 4168 /* put_user is probably wrong. */ 4169 put_user(st.st_dev, &target_st->st_dev); 4170 put_user(st.st_ino, &target_st->st_ino); 4171 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO 4172 put_user(st.st_ino, &target_st->__st_ino); 4173 #endif 4174 put_user(st.st_mode, &target_st->st_mode); 4175 put_user(st.st_nlink, &target_st->st_nlink); 4176 put_user(st.st_uid, &target_st->st_uid); 4177 put_user(st.st_gid, &target_st->st_gid); 4178 put_user(st.st_rdev, &target_st->st_rdev); 4179 /* XXX: better use of kernel struct */ 4180 put_user(st.st_size, &target_st->st_size); 4181 put_user(st.st_blksize, &target_st->st_blksize); 4182 put_user(st.st_blocks, &target_st->st_blocks); 4183 put_user(st.st_atime, &target_st->target_st_atime); 4184 put_user(st.st_mtime, &target_st->target_st_mtime); 4185 put_user(st.st_ctime, &target_st->target_st_ctime); 4186 unlock_user_struct(target_st, arg2, 0); 4187 } else 4188 #endif 4189 { 4190 struct target_stat64 *target_st; 4191 lock_user_struct(target_st, arg2, 1); 4192 memset(target_st, 0, sizeof(struct target_stat64)); 4193 /* ??? put_user is probably wrong. */ 4194 put_user(st.st_dev, &target_st->st_dev); 4195 put_user(st.st_ino, &target_st->st_ino); 4196 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO 4197 put_user(st.st_ino, &target_st->__st_ino); 4198 #endif 4199 put_user(st.st_mode, &target_st->st_mode); 4200 put_user(st.st_nlink, &target_st->st_nlink); 4201 put_user(st.st_uid, &target_st->st_uid); 4202 put_user(st.st_gid, &target_st->st_gid); 4203 put_user(st.st_rdev, &target_st->st_rdev); 4204 /* XXX: better use of kernel struct */ 4205 put_user(st.st_size, &target_st->st_size); 4206 put_user(st.st_blksize, &target_st->st_blksize); 4207 put_user(st.st_blocks, &target_st->st_blocks); 4208 put_user(st.st_atime, &target_st->target_st_atime); 4209 put_user(st.st_mtime, &target_st->target_st_mtime); 4210 put_user(st.st_ctime, &target_st->target_st_ctime); 4211 unlock_user_struct(target_st, arg2, 0); 4212 } 4213 } 4214 } 4215 break; 4216 #endif 4217 #ifdef USE_UID16 4218 case TARGET_NR_lchown: 4219 p = lock_user_string(arg1); 4220 ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3))); 4221 unlock_user(p, arg1, 0); 4222 break; 4223 case TARGET_NR_getuid: 4224 ret = get_errno(high2lowuid(getuid())); 4225 break; 4226 case TARGET_NR_getgid: 4227 ret = get_errno(high2lowgid(getgid())); 4228 break; 4229 case TARGET_NR_geteuid: 4230 ret = get_errno(high2lowuid(geteuid())); 4231 break; 4232 case TARGET_NR_getegid: 4233 ret = get_errno(high2lowgid(getegid())); 4234 break; 4235 case TARGET_NR_setreuid: 4236 ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2))); 4237 break; 4238 case TARGET_NR_setregid: 4239 ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2))); 4240 break; 4241 case TARGET_NR_getgroups: 4242 { 4243 int gidsetsize = arg1; 4244 uint16_t *target_grouplist; 4245 gid_t *grouplist; 4246 int i; 4247 4248 grouplist = alloca(gidsetsize * sizeof(gid_t)); 4249 ret = get_errno(getgroups(gidsetsize, grouplist)); 4250 if (!is_error(ret)) { 4251 target_grouplist = lock_user(arg2, gidsetsize * 2, 0); 4252 for(i = 0;i < gidsetsize; i++) 4253 target_grouplist[i] = tswap16(grouplist[i]); 4254 unlock_user(target_grouplist, arg2, gidsetsize * 2); 4255 } 4256 } 4257 break; 4258 case TARGET_NR_setgroups: 4259 { 4260 int gidsetsize = arg1; 4261 uint16_t *target_grouplist; 4262 gid_t *grouplist; 4263 int i; 4264 4265 grouplist = alloca(gidsetsize * sizeof(gid_t)); 4266 target_grouplist = lock_user(arg2, gidsetsize * 2, 1); 4267 for(i = 0;i < gidsetsize; i++) 4268 grouplist[i] = tswap16(target_grouplist[i]); 4269 unlock_user(target_grouplist, arg2, 0); 4270 ret = get_errno(setgroups(gidsetsize, grouplist)); 4271 } 4272 break; 4273 case TARGET_NR_fchown: 4274 ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3))); 4275 break; 4276 #ifdef TARGET_NR_setresuid 4277 case TARGET_NR_setresuid: 4278 ret = get_errno(setresuid(low2highuid(arg1), 4279 low2highuid(arg2), 4280 low2highuid(arg3))); 4281 break; 4282 #endif 4283 #ifdef TARGET_NR_getresuid 4284 case TARGET_NR_getresuid: 4285 { 4286 uid_t ruid, euid, suid; 4287 ret = get_errno(getresuid(&ruid, &euid, &suid)); 4288 if (!is_error(ret)) { 4289 tput16(arg1, tswap16(high2lowuid(ruid))); 4290 tput16(arg2, tswap16(high2lowuid(euid))); 4291 tput16(arg3, tswap16(high2lowuid(suid))); 4292 } 4293 } 4294 break; 4295 #endif 4296 #ifdef TARGET_NR_getresgid 4297 case TARGET_NR_setresgid: 4298 ret = get_errno(setresgid(low2highgid(arg1), 4299 low2highgid(arg2), 4300 low2highgid(arg3))); 4301 break; 4302 #endif 4303 #ifdef TARGET_NR_getresgid 4304 case TARGET_NR_getresgid: 4305 { 4306 gid_t rgid, egid, sgid; 4307 ret = get_errno(getresgid(&rgid, &egid, &sgid)); 4308 if (!is_error(ret)) { 4309 tput16(arg1, tswap16(high2lowgid(rgid))); 4310 tput16(arg2, tswap16(high2lowgid(egid))); 4311 tput16(arg3, tswap16(high2lowgid(sgid))); 4312 } 4313 } 4314 break; 4315 #endif 4316 case TARGET_NR_chown: 4317 p = lock_user_string(arg1); 4318 ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3))); 4319 unlock_user(p, arg1, 0); 4320 break; 4321 case TARGET_NR_setuid: 4322 ret = get_errno(setuid(low2highuid(arg1))); 4323 break; 4324 case TARGET_NR_setgid: 4325 ret = get_errno(setgid(low2highgid(arg1))); 4326 break; 4327 case TARGET_NR_setfsuid: 4328 ret = get_errno(setfsuid(arg1)); 4329 break; 4330 case TARGET_NR_setfsgid: 4331 ret = get_errno(setfsgid(arg1)); 4332 break; 4333 #endif /* USE_UID16 */ 4334 4335 #ifdef TARGET_NR_lchown32 4336 case TARGET_NR_lchown32: 4337 p = lock_user_string(arg1); 4338 ret = get_errno(lchown(p, arg2, arg3)); 4339 unlock_user(p, arg1, 0); 4340 break; 4341 #endif 4342 #ifdef TARGET_NR_getuid32 4343 case TARGET_NR_getuid32: 4344 ret = get_errno(getuid()); 4345 break; 4346 #endif 4347 #ifdef TARGET_NR_getgid32 4348 case TARGET_NR_getgid32: 4349 ret = get_errno(getgid()); 4350 break; 4351 #endif 4352 #ifdef TARGET_NR_geteuid32 4353 case TARGET_NR_geteuid32: 4354 ret = get_errno(geteuid()); 4355 break; 4356 #endif 4357 #ifdef TARGET_NR_getegid32 4358 case TARGET_NR_getegid32: 4359 ret = get_errno(getegid()); 4360 break; 4361 #endif 4362 #ifdef TARGET_NR_setreuid32 4363 case TARGET_NR_setreuid32: 4364 ret = get_errno(setreuid(arg1, arg2)); 4365 break; 4366 #endif 4367 #ifdef TARGET_NR_setregid32 4368 case TARGET_NR_setregid32: 4369 ret = get_errno(setregid(arg1, arg2)); 4370 break; 4371 #endif 4372 #ifdef TARGET_NR_getgroups32 4373 case TARGET_NR_getgroups32: 4374 { 4375 int gidsetsize = arg1; 4376 uint32_t *target_grouplist; 4377 gid_t *grouplist; 4378 int i; 4379 4380 grouplist = alloca(gidsetsize * sizeof(gid_t)); 4381 ret = get_errno(getgroups(gidsetsize, grouplist)); 4382 if (!is_error(ret)) { 4383 target_grouplist = lock_user(arg2, gidsetsize * 4, 0); 4384 for(i = 0;i < gidsetsize; i++) 4385 target_grouplist[i] = tswap32(grouplist[i]); 4386 unlock_user(target_grouplist, arg2, gidsetsize * 4); 4387 } 4388 } 4389 break; 4390 #endif 4391 #ifdef TARGET_NR_setgroups32 4392 case TARGET_NR_setgroups32: 4393 { 4394 int gidsetsize = arg1; 4395 uint32_t *target_grouplist; 4396 gid_t *grouplist; 4397 int i; 4398 4399 grouplist = alloca(gidsetsize * sizeof(gid_t)); 4400 target_grouplist = lock_user(arg2, gidsetsize * 4, 1); 4401 for(i = 0;i < gidsetsize; i++) 4402 grouplist[i] = tswap32(target_grouplist[i]); 4403 unlock_user(target_grouplist, arg2, 0); 4404 ret = get_errno(setgroups(gidsetsize, grouplist)); 4405 } 4406 break; 4407 #endif 4408 #ifdef TARGET_NR_fchown32 4409 case TARGET_NR_fchown32: 4410 ret = get_errno(fchown(arg1, arg2, arg3)); 4411 break; 4412 #endif 4413 #ifdef TARGET_NR_setresuid32 4414 case TARGET_NR_setresuid32: 4415 ret = get_errno(setresuid(arg1, arg2, arg3)); 4416 break; 4417 #endif 4418 #ifdef TARGET_NR_getresuid32 4419 case TARGET_NR_getresuid32: 4420 { 4421 uid_t ruid, euid, suid; 4422 ret = get_errno(getresuid(&ruid, &euid, &suid)); 4423 if (!is_error(ret)) { 4424 tput32(arg1, tswap32(ruid)); 4425 tput32(arg2, tswap32(euid)); 4426 tput32(arg3, tswap32(suid)); 4427 } 4428 } 4429 break; 4430 #endif 4431 #ifdef TARGET_NR_setresgid32 4432 case TARGET_NR_setresgid32: 4433 ret = get_errno(setresgid(arg1, arg2, arg3)); 4434 break; 4435 #endif 4436 #ifdef TARGET_NR_getresgid32 4437 case TARGET_NR_getresgid32: 4438 { 4439 gid_t rgid, egid, sgid; 4440 ret = get_errno(getresgid(&rgid, &egid, &sgid)); 4441 if (!is_error(ret)) { 4442 tput32(arg1, tswap32(rgid)); 4443 tput32(arg2, tswap32(egid)); 4444 tput32(arg3, tswap32(sgid)); 4445 } 4446 } 4447 break; 4448 #endif 4449 #ifdef TARGET_NR_chown32 4450 case TARGET_NR_chown32: 4451 p = lock_user_string(arg1); 4452 ret = get_errno(chown(p, arg2, arg3)); 4453 unlock_user(p, arg1, 0); 4454 break; 4455 #endif 4456 #ifdef TARGET_NR_setuid32 4457 case TARGET_NR_setuid32: 4458 ret = get_errno(setuid(arg1)); 4459 break; 4460 #endif 4461 #ifdef TARGET_NR_setgid32 4462 case TARGET_NR_setgid32: 4463 ret = get_errno(setgid(arg1)); 4464 break; 4465 #endif 4466 #ifdef TARGET_NR_setfsuid32 4467 case TARGET_NR_setfsuid32: 4468 ret = get_errno(setfsuid(arg1)); 4469 break; 4470 #endif 4471 #ifdef TARGET_NR_setfsgid32 4472 case TARGET_NR_setfsgid32: 4473 ret = get_errno(setfsgid(arg1)); 4474 break; 4475 #endif 4476 4477 case TARGET_NR_pivot_root: 4478 goto unimplemented; 4479 #ifdef TARGET_NR_mincore 4480 case TARGET_NR_mincore: 4481 goto unimplemented; 4482 #endif 4483 #ifdef TARGET_NR_madvise 4484 case TARGET_NR_madvise: 4485 /* A straight passthrough may not be safe because qemu sometimes 4486 turns private flie-backed mappings into anonymous mappings. 4487 This will break MADV_DONTNEED. 4488 This is a hint, so ignoring and returning success is ok. */ 4489 ret = get_errno(0); 4490 break; 4491 #endif 4492 #if TARGET_LONG_BITS == 32 4493 case TARGET_NR_fcntl64: 4494 { 4495 int cmd; 4496 struct flock64 fl; 4497 struct target_flock64 *target_fl; 4498 #ifdef TARGET_ARM 4499 struct target_eabi_flock64 *target_efl; 4500 #endif 4501 4502 switch(arg2){ 4503 case TARGET_F_GETLK64: 4504 cmd = F_GETLK64; 4505 break; 4506 case TARGET_F_SETLK64: 4507 cmd = F_SETLK64; 4508 break; 4509 case TARGET_F_SETLKW64: 4510 cmd = F_SETLK64; 4511 break; 4512 default: 4513 cmd = arg2; 4514 break; 4515 } 4516 4517 switch(arg2) { 4518 case TARGET_F_GETLK64: 4519 #ifdef TARGET_ARM 4520 if (((CPUARMState *)cpu_env)->eabi) { 4521 lock_user_struct(target_efl, arg3, 1); 4522 fl.l_type = tswap16(target_efl->l_type); 4523 fl.l_whence = tswap16(target_efl->l_whence); 4524 fl.l_start = tswap64(target_efl->l_start); 4525 fl.l_len = tswap64(target_efl->l_len); 4526 fl.l_pid = tswapl(target_efl->l_pid); 4527 unlock_user_struct(target_efl, arg3, 0); 4528 } else 4529 #endif 4530 { 4531 lock_user_struct(target_fl, arg3, 1); 4532 fl.l_type = tswap16(target_fl->l_type); 4533 fl.l_whence = tswap16(target_fl->l_whence); 4534 fl.l_start = tswap64(target_fl->l_start); 4535 fl.l_len = tswap64(target_fl->l_len); 4536 fl.l_pid = tswapl(target_fl->l_pid); 4537 unlock_user_struct(target_fl, arg3, 0); 4538 } 4539 ret = get_errno(fcntl(arg1, cmd, &fl)); 4540 if (ret == 0) { 4541 #ifdef TARGET_ARM 4542 if (((CPUARMState *)cpu_env)->eabi) { 4543 lock_user_struct(target_efl, arg3, 0); 4544 target_efl->l_type = tswap16(fl.l_type); 4545 target_efl->l_whence = tswap16(fl.l_whence); 4546 target_efl->l_start = tswap64(fl.l_start); 4547 target_efl->l_len = tswap64(fl.l_len); 4548 target_efl->l_pid = tswapl(fl.l_pid); 4549 unlock_user_struct(target_efl, arg3, 1); 4550 } else 4551 #endif 4552 { 4553 lock_user_struct(target_fl, arg3, 0); 4554 target_fl->l_type = tswap16(fl.l_type); 4555 target_fl->l_whence = tswap16(fl.l_whence); 4556 target_fl->l_start = tswap64(fl.l_start); 4557 target_fl->l_len = tswap64(fl.l_len); 4558 target_fl->l_pid = tswapl(fl.l_pid); 4559 unlock_user_struct(target_fl, arg3, 1); 4560 } 4561 } 4562 break; 4563 4564 case TARGET_F_SETLK64: 4565 case TARGET_F_SETLKW64: 4566 #ifdef TARGET_ARM 4567 if (((CPUARMState *)cpu_env)->eabi) { 4568 lock_user_struct(target_efl, arg3, 1); 4569 fl.l_type = tswap16(target_efl->l_type); 4570 fl.l_whence = tswap16(target_efl->l_whence); 4571 fl.l_start = tswap64(target_efl->l_start); 4572 fl.l_len = tswap64(target_efl->l_len); 4573 fl.l_pid = tswapl(target_efl->l_pid); 4574 unlock_user_struct(target_efl, arg3, 0); 4575 } else 4576 #endif 4577 { 4578 lock_user_struct(target_fl, arg3, 1); 4579 fl.l_type = tswap16(target_fl->l_type); 4580 fl.l_whence = tswap16(target_fl->l_whence); 4581 fl.l_start = tswap64(target_fl->l_start); 4582 fl.l_len = tswap64(target_fl->l_len); 4583 fl.l_pid = tswapl(target_fl->l_pid); 4584 unlock_user_struct(target_fl, arg3, 0); 4585 } 4586 ret = get_errno(fcntl(arg1, cmd, &fl)); 4587 break; 4588 default: 4589 ret = get_errno(do_fcntl(arg1, cmd, arg3)); 4590 break; 4591 } 4592 break; 4593 } 4594 #endif 4595 #ifdef TARGET_NR_cacheflush 4596 case TARGET_NR_cacheflush: 4597 /* self-modifying code is handled automatically, so nothing needed */ 4598 ret = 0; 4599 break; 4600 #endif 4601 #ifdef TARGET_NR_security 4602 case TARGET_NR_security: 4603 goto unimplemented; 4604 #endif 4605 #ifdef TARGET_NR_getpagesize 4606 case TARGET_NR_getpagesize: 4607 ret = TARGET_PAGE_SIZE; 4608 break; 4609 #endif 4610 case TARGET_NR_gettid: 4611 ret = get_errno(gettid()); 4612 break; 4613 #ifdef TARGET_NR_readahead 4614 case TARGET_NR_readahead: 4615 goto unimplemented; 4616 #endif 4617 #ifdef TARGET_NR_setxattr 4618 case TARGET_NR_setxattr: 4619 case TARGET_NR_lsetxattr: 4620 case TARGET_NR_fsetxattr: 4621 case TARGET_NR_getxattr: 4622 case TARGET_NR_lgetxattr: 4623 case TARGET_NR_fgetxattr: 4624 case TARGET_NR_listxattr: 4625 case TARGET_NR_llistxattr: 4626 case TARGET_NR_flistxattr: 4627 case TARGET_NR_removexattr: 4628 case TARGET_NR_lremovexattr: 4629 case TARGET_NR_fremovexattr: 4630 goto unimplemented_nowarn; 4631 #endif 4632 #ifdef TARGET_NR_set_thread_area 4633 case TARGET_NR_set_thread_area: 4634 #ifdef TARGET_MIPS 4635 ((CPUMIPSState *) cpu_env)->tls_value = arg1; 4636 ret = 0; 4637 break; 4638 #else 4639 goto unimplemented_nowarn; 4640 #endif 4641 #endif 4642 #ifdef TARGET_NR_get_thread_area 4643 case TARGET_NR_get_thread_area: 4644 goto unimplemented_nowarn; 4645 #endif 4646 #ifdef TARGET_NR_getdomainname 4647 case TARGET_NR_getdomainname: 4648 goto unimplemented_nowarn; 4649 #endif 4650 4651 #ifdef TARGET_NR_clock_gettime 4652 case TARGET_NR_clock_gettime: 4653 { 4654 struct timespec ts; 4655 ret = get_errno(clock_gettime(arg1, &ts)); 4656 if (!is_error(ret)) { 4657 host_to_target_timespec(arg2, &ts); 4658 } 4659 break; 4660 } 4661 #endif 4662 #ifdef TARGET_NR_clock_getres 4663 case TARGET_NR_clock_getres: 4664 { 4665 struct timespec ts; 4666 ret = get_errno(clock_getres(arg1, &ts)); 4667 if (!is_error(ret)) { 4668 host_to_target_timespec(arg2, &ts); 4669 } 4670 break; 4671 } 4672 #endif 4673 4674 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address) 4675 case TARGET_NR_set_tid_address: 4676 ret = get_errno(set_tid_address((int *) arg1)); 4677 break; 4678 #endif 4679 4680 #if defined(TARGET_NR_tkill) && defined(__NR_tkill) 4681 case TARGET_NR_tkill: 4682 ret = get_errno(sys_tkill((int)arg1, (int)arg2)); 4683 break; 4684 #endif 4685 4686 #if defined(TARGET_NR_tgkill) && defined(__NR_tgkill) 4687 case TARGET_NR_tgkill: 4688 ret = get_errno(sys_tgkill((int)arg1, (int)arg2, (int)arg3)); 4689 break; 4690 #endif 4691 4692 #ifdef TARGET_NR_set_robust_list 4693 case TARGET_NR_set_robust_list: 4694 goto unimplemented_nowarn; 4695 #endif 4696 4697 default: 4698 unimplemented: 4699 gemu_log("qemu: Unsupported syscall: %d\n", num); 4700 #if defined(TARGET_NR_setxattr) || defined(TARGET_NR_get_thread_area) || defined(TARGET_NR_getdomainname) || defined(TARGET_NR_set_robust_list) 4701 unimplemented_nowarn: 4702 #endif 4703 ret = -ENOSYS; 4704 break; 4705 } 4706 fail: 4707 #ifdef DEBUG 4708 gemu_log(" = %ld\n", ret); 4709 #endif 4710 return ret; 4711 } 4712 4713