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_fchownat __NR_fchownat 143 #define __NR_sys_getcwd1 __NR_getcwd 144 #define __NR_sys_getdents __NR_getdents 145 #define __NR_sys_getdents64 __NR_getdents64 146 #define __NR_sys_mkdirat __NR_mkdirat 147 #define __NR_sys_mknodat __NR_mknodat 148 #define __NR_sys_openat __NR_openat 149 #define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo 150 #define __NR_sys_syslog __NR_syslog 151 #define __NR_sys_tgkill __NR_tgkill 152 #define __NR_sys_tkill __NR_tkill 153 #define __NR_sys_unlinkat __NR_unlinkat 154 155 #if defined(__alpha__) || defined (__ia64__) || defined(__x86_64__) 156 #define __NR__llseek __NR_lseek 157 #endif 158 159 #ifdef __NR_gettid 160 _syscall0(int, gettid) 161 #else 162 static int gettid(void) { 163 return -ENOSYS; 164 } 165 #endif 166 _syscall1(int,sys_uname,struct new_utsname *,buf) 167 #if defined(TARGET_NR_fchownat) && defined(__NR_fchownat) 168 _syscall5(int,sys_fchownat,int,dirfd,const char *,pathname, 169 uid_t,owner,gid_t,group,int,flags) 170 #endif 171 _syscall2(int,sys_getcwd1,char *,buf,size_t,size) 172 _syscall3(int, sys_getdents, uint, fd, struct dirent *, dirp, uint, count); 173 #if defined(TARGET_NR_getdents64) && defined(__NR_getdents64) 174 _syscall3(int, sys_getdents64, uint, fd, struct dirent64 *, dirp, uint, count); 175 #endif 176 _syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo, 177 loff_t *, res, uint, wh); 178 #if defined(TARGET_NR_mkdirat) && defined(__NR_mkdirat) 179 _syscall3(int,sys_mkdirat,int,dirfd,const char *,pathname,mode_t,mode) 180 #endif 181 #if defined(TARGET_NR_mknodat) && defined(__NR_mknodat) 182 _syscall4(int,sys_mknodat,int,dirfd,const char *,pathname, 183 mode_t,mode,dev_t,dev) 184 #endif 185 #if defined(TARGET_NR_openat) && defined(__NR_openat) 186 _syscall4(int,sys_openat,int,dirfd,const char *,pathname,int,flags,mode_t,mode) 187 #endif 188 _syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo) 189 _syscall3(int,sys_syslog,int,type,char*,bufp,int,len) 190 #if defined(TARGET_NR_tgkill) && defined(__NR_tgkill) 191 _syscall3(int,sys_tgkill,int,tgid,int,pid,int,sig) 192 #endif 193 #if defined(TARGET_NR_tkill) && defined(__NR_tkill) 194 _syscall2(int,sys_tkill,int,tid,int,sig) 195 #endif 196 #ifdef __NR_exit_group 197 _syscall1(int,exit_group,int,error_code) 198 #endif 199 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address) 200 _syscall1(int,set_tid_address,int *,tidptr) 201 #endif 202 #if defined(TARGET_NR_unlinkat) && defined(__NR_unlinkat) 203 _syscall3(int,sys_unlinkat,int,dirfd,const char *,pathname,int,flags) 204 #endif 205 206 extern int personality(int); 207 extern int flock(int, int); 208 extern int setfsuid(int); 209 extern int setfsgid(int); 210 extern int setresuid(uid_t, uid_t, uid_t); 211 extern int getresuid(uid_t *, uid_t *, uid_t *); 212 extern int setresgid(gid_t, gid_t, gid_t); 213 extern int getresgid(gid_t *, gid_t *, gid_t *); 214 extern int setgroups(int, gid_t *); 215 216 /* 217 * This list is the union of errno values overridden in asm-<arch>/errno.h 218 * minus the errnos that are not actually generic to all archs. 219 */ 220 static uint16_t host_to_target_errno_table[1200] = { 221 [EIDRM] = TARGET_EIDRM, 222 [ECHRNG] = TARGET_ECHRNG, 223 [EL2NSYNC] = TARGET_EL2NSYNC, 224 [EL3HLT] = TARGET_EL3HLT, 225 [EL3RST] = TARGET_EL3RST, 226 [ELNRNG] = TARGET_ELNRNG, 227 [EUNATCH] = TARGET_EUNATCH, 228 [ENOCSI] = TARGET_ENOCSI, 229 [EL2HLT] = TARGET_EL2HLT, 230 [EDEADLK] = TARGET_EDEADLK, 231 [ENOLCK] = TARGET_ENOLCK, 232 [EBADE] = TARGET_EBADE, 233 [EBADR] = TARGET_EBADR, 234 [EXFULL] = TARGET_EXFULL, 235 [ENOANO] = TARGET_ENOANO, 236 [EBADRQC] = TARGET_EBADRQC, 237 [EBADSLT] = TARGET_EBADSLT, 238 [EBFONT] = TARGET_EBFONT, 239 [ENOSTR] = TARGET_ENOSTR, 240 [ENODATA] = TARGET_ENODATA, 241 [ETIME] = TARGET_ETIME, 242 [ENOSR] = TARGET_ENOSR, 243 [ENONET] = TARGET_ENONET, 244 [ENOPKG] = TARGET_ENOPKG, 245 [EREMOTE] = TARGET_EREMOTE, 246 [ENOLINK] = TARGET_ENOLINK, 247 [EADV] = TARGET_EADV, 248 [ESRMNT] = TARGET_ESRMNT, 249 [ECOMM] = TARGET_ECOMM, 250 [EPROTO] = TARGET_EPROTO, 251 [EDOTDOT] = TARGET_EDOTDOT, 252 [EMULTIHOP] = TARGET_EMULTIHOP, 253 [EBADMSG] = TARGET_EBADMSG, 254 [ENAMETOOLONG] = TARGET_ENAMETOOLONG, 255 [EOVERFLOW] = TARGET_EOVERFLOW, 256 [ENOTUNIQ] = TARGET_ENOTUNIQ, 257 [EBADFD] = TARGET_EBADFD, 258 [EREMCHG] = TARGET_EREMCHG, 259 [ELIBACC] = TARGET_ELIBACC, 260 [ELIBBAD] = TARGET_ELIBBAD, 261 [ELIBSCN] = TARGET_ELIBSCN, 262 [ELIBMAX] = TARGET_ELIBMAX, 263 [ELIBEXEC] = TARGET_ELIBEXEC, 264 [EILSEQ] = TARGET_EILSEQ, 265 [ENOSYS] = TARGET_ENOSYS, 266 [ELOOP] = TARGET_ELOOP, 267 [ERESTART] = TARGET_ERESTART, 268 [ESTRPIPE] = TARGET_ESTRPIPE, 269 [ENOTEMPTY] = TARGET_ENOTEMPTY, 270 [EUSERS] = TARGET_EUSERS, 271 [ENOTSOCK] = TARGET_ENOTSOCK, 272 [EDESTADDRREQ] = TARGET_EDESTADDRREQ, 273 [EMSGSIZE] = TARGET_EMSGSIZE, 274 [EPROTOTYPE] = TARGET_EPROTOTYPE, 275 [ENOPROTOOPT] = TARGET_ENOPROTOOPT, 276 [EPROTONOSUPPORT] = TARGET_EPROTONOSUPPORT, 277 [ESOCKTNOSUPPORT] = TARGET_ESOCKTNOSUPPORT, 278 [EOPNOTSUPP] = TARGET_EOPNOTSUPP, 279 [EPFNOSUPPORT] = TARGET_EPFNOSUPPORT, 280 [EAFNOSUPPORT] = TARGET_EAFNOSUPPORT, 281 [EADDRINUSE] = TARGET_EADDRINUSE, 282 [EADDRNOTAVAIL] = TARGET_EADDRNOTAVAIL, 283 [ENETDOWN] = TARGET_ENETDOWN, 284 [ENETUNREACH] = TARGET_ENETUNREACH, 285 [ENETRESET] = TARGET_ENETRESET, 286 [ECONNABORTED] = TARGET_ECONNABORTED, 287 [ECONNRESET] = TARGET_ECONNRESET, 288 [ENOBUFS] = TARGET_ENOBUFS, 289 [EISCONN] = TARGET_EISCONN, 290 [ENOTCONN] = TARGET_ENOTCONN, 291 [EUCLEAN] = TARGET_EUCLEAN, 292 [ENOTNAM] = TARGET_ENOTNAM, 293 [ENAVAIL] = TARGET_ENAVAIL, 294 [EISNAM] = TARGET_EISNAM, 295 [EREMOTEIO] = TARGET_EREMOTEIO, 296 [ESHUTDOWN] = TARGET_ESHUTDOWN, 297 [ETOOMANYREFS] = TARGET_ETOOMANYREFS, 298 [ETIMEDOUT] = TARGET_ETIMEDOUT, 299 [ECONNREFUSED] = TARGET_ECONNREFUSED, 300 [EHOSTDOWN] = TARGET_EHOSTDOWN, 301 [EHOSTUNREACH] = TARGET_EHOSTUNREACH, 302 [EALREADY] = TARGET_EALREADY, 303 [EINPROGRESS] = TARGET_EINPROGRESS, 304 [ESTALE] = TARGET_ESTALE, 305 [ECANCELED] = TARGET_ECANCELED, 306 [ENOMEDIUM] = TARGET_ENOMEDIUM, 307 [EMEDIUMTYPE] = TARGET_EMEDIUMTYPE, 308 #ifdef ENOKEY 309 [ENOKEY] = TARGET_ENOKEY, 310 #endif 311 #ifdef EKEYEXPIRED 312 [EKEYEXPIRED] = TARGET_EKEYEXPIRED, 313 #endif 314 #ifdef EKEYREVOKED 315 [EKEYREVOKED] = TARGET_EKEYREVOKED, 316 #endif 317 #ifdef EKEYREJECTED 318 [EKEYREJECTED] = TARGET_EKEYREJECTED, 319 #endif 320 #ifdef EOWNERDEAD 321 [EOWNERDEAD] = TARGET_EOWNERDEAD, 322 #endif 323 #ifdef ENOTRECOVERABLE 324 [ENOTRECOVERABLE] = TARGET_ENOTRECOVERABLE, 325 #endif 326 }; 327 328 static inline int host_to_target_errno(int err) 329 { 330 if(host_to_target_errno_table[err]) 331 return host_to_target_errno_table[err]; 332 return err; 333 } 334 335 static inline long get_errno(long ret) 336 { 337 if (ret == -1) 338 return -host_to_target_errno(errno); 339 else 340 return ret; 341 } 342 343 static inline int is_error(long ret) 344 { 345 return (unsigned long)ret >= (unsigned long)(-4096); 346 } 347 348 static target_ulong target_brk; 349 static target_ulong target_original_brk; 350 351 void target_set_brk(target_ulong new_brk) 352 { 353 target_original_brk = target_brk = HOST_PAGE_ALIGN(new_brk); 354 } 355 356 long do_brk(target_ulong new_brk) 357 { 358 target_ulong brk_page; 359 long mapped_addr; 360 int new_alloc_size; 361 362 if (!new_brk) 363 return target_brk; 364 if (new_brk < target_original_brk) 365 return -ENOMEM; 366 367 brk_page = HOST_PAGE_ALIGN(target_brk); 368 369 /* If the new brk is less than this, set it and we're done... */ 370 if (new_brk < brk_page) { 371 target_brk = new_brk; 372 return target_brk; 373 } 374 375 /* We need to allocate more memory after the brk... */ 376 new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1); 377 mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size, 378 PROT_READ|PROT_WRITE, 379 MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0)); 380 if (is_error(mapped_addr)) { 381 return mapped_addr; 382 } else { 383 target_brk = new_brk; 384 return target_brk; 385 } 386 } 387 388 static inline fd_set *target_to_host_fds(fd_set *fds, 389 target_long *target_fds, int n) 390 { 391 #if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN) 392 return (fd_set *)target_fds; 393 #else 394 int i, b; 395 if (target_fds) { 396 FD_ZERO(fds); 397 for(i = 0;i < n; i++) { 398 b = (tswapl(target_fds[i / TARGET_LONG_BITS]) >> 399 (i & (TARGET_LONG_BITS - 1))) & 1; 400 if (b) 401 FD_SET(i, fds); 402 } 403 return fds; 404 } else { 405 return NULL; 406 } 407 #endif 408 } 409 410 static inline void host_to_target_fds(target_long *target_fds, 411 fd_set *fds, int n) 412 { 413 #if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN) 414 /* nothing to do */ 415 #else 416 int i, nw, j, k; 417 target_long v; 418 419 if (target_fds) { 420 nw = (n + TARGET_LONG_BITS - 1) / TARGET_LONG_BITS; 421 k = 0; 422 for(i = 0;i < nw; i++) { 423 v = 0; 424 for(j = 0; j < TARGET_LONG_BITS; j++) { 425 v |= ((FD_ISSET(k, fds) != 0) << j); 426 k++; 427 } 428 target_fds[i] = tswapl(v); 429 } 430 } 431 #endif 432 } 433 434 #if defined(__alpha__) 435 #define HOST_HZ 1024 436 #else 437 #define HOST_HZ 100 438 #endif 439 440 static inline long host_to_target_clock_t(long ticks) 441 { 442 #if HOST_HZ == TARGET_HZ 443 return ticks; 444 #else 445 return ((int64_t)ticks * TARGET_HZ) / HOST_HZ; 446 #endif 447 } 448 449 static inline void host_to_target_rusage(target_ulong target_addr, 450 const struct rusage *rusage) 451 { 452 struct target_rusage *target_rusage; 453 454 lock_user_struct(target_rusage, target_addr, 0); 455 target_rusage->ru_utime.tv_sec = tswapl(rusage->ru_utime.tv_sec); 456 target_rusage->ru_utime.tv_usec = tswapl(rusage->ru_utime.tv_usec); 457 target_rusage->ru_stime.tv_sec = tswapl(rusage->ru_stime.tv_sec); 458 target_rusage->ru_stime.tv_usec = tswapl(rusage->ru_stime.tv_usec); 459 target_rusage->ru_maxrss = tswapl(rusage->ru_maxrss); 460 target_rusage->ru_ixrss = tswapl(rusage->ru_ixrss); 461 target_rusage->ru_idrss = tswapl(rusage->ru_idrss); 462 target_rusage->ru_isrss = tswapl(rusage->ru_isrss); 463 target_rusage->ru_minflt = tswapl(rusage->ru_minflt); 464 target_rusage->ru_majflt = tswapl(rusage->ru_majflt); 465 target_rusage->ru_nswap = tswapl(rusage->ru_nswap); 466 target_rusage->ru_inblock = tswapl(rusage->ru_inblock); 467 target_rusage->ru_oublock = tswapl(rusage->ru_oublock); 468 target_rusage->ru_msgsnd = tswapl(rusage->ru_msgsnd); 469 target_rusage->ru_msgrcv = tswapl(rusage->ru_msgrcv); 470 target_rusage->ru_nsignals = tswapl(rusage->ru_nsignals); 471 target_rusage->ru_nvcsw = tswapl(rusage->ru_nvcsw); 472 target_rusage->ru_nivcsw = tswapl(rusage->ru_nivcsw); 473 unlock_user_struct(target_rusage, target_addr, 1); 474 } 475 476 static inline void target_to_host_timeval(struct timeval *tv, 477 target_ulong target_addr) 478 { 479 struct target_timeval *target_tv; 480 481 lock_user_struct(target_tv, target_addr, 1); 482 tv->tv_sec = tswapl(target_tv->tv_sec); 483 tv->tv_usec = tswapl(target_tv->tv_usec); 484 unlock_user_struct(target_tv, target_addr, 0); 485 } 486 487 static inline void host_to_target_timeval(target_ulong target_addr, 488 const struct timeval *tv) 489 { 490 struct target_timeval *target_tv; 491 492 lock_user_struct(target_tv, target_addr, 0); 493 target_tv->tv_sec = tswapl(tv->tv_sec); 494 target_tv->tv_usec = tswapl(tv->tv_usec); 495 unlock_user_struct(target_tv, target_addr, 1); 496 } 497 498 499 static long do_select(long n, 500 target_ulong rfd_p, target_ulong wfd_p, 501 target_ulong efd_p, target_ulong target_tv) 502 { 503 fd_set rfds, wfds, efds; 504 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr; 505 target_long *target_rfds, *target_wfds, *target_efds; 506 struct timeval tv, *tv_ptr; 507 long ret; 508 int ok; 509 510 if (rfd_p) { 511 target_rfds = lock_user(rfd_p, sizeof(target_long) * n, 1); 512 rfds_ptr = target_to_host_fds(&rfds, target_rfds, n); 513 } else { 514 target_rfds = NULL; 515 rfds_ptr = NULL; 516 } 517 if (wfd_p) { 518 target_wfds = lock_user(wfd_p, sizeof(target_long) * n, 1); 519 wfds_ptr = target_to_host_fds(&wfds, target_wfds, n); 520 } else { 521 target_wfds = NULL; 522 wfds_ptr = NULL; 523 } 524 if (efd_p) { 525 target_efds = lock_user(efd_p, sizeof(target_long) * n, 1); 526 efds_ptr = target_to_host_fds(&efds, target_efds, n); 527 } else { 528 target_efds = NULL; 529 efds_ptr = NULL; 530 } 531 532 if (target_tv) { 533 target_to_host_timeval(&tv, target_tv); 534 tv_ptr = &tv; 535 } else { 536 tv_ptr = NULL; 537 } 538 ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr)); 539 ok = !is_error(ret); 540 541 if (ok) { 542 host_to_target_fds(target_rfds, rfds_ptr, n); 543 host_to_target_fds(target_wfds, wfds_ptr, n); 544 host_to_target_fds(target_efds, efds_ptr, n); 545 546 if (target_tv) { 547 host_to_target_timeval(target_tv, &tv); 548 } 549 } 550 if (target_rfds) 551 unlock_user(target_rfds, rfd_p, ok ? sizeof(target_long) * n : 0); 552 if (target_wfds) 553 unlock_user(target_wfds, wfd_p, ok ? sizeof(target_long) * n : 0); 554 if (target_efds) 555 unlock_user(target_efds, efd_p, ok ? sizeof(target_long) * n : 0); 556 557 return ret; 558 } 559 560 static inline void target_to_host_sockaddr(struct sockaddr *addr, 561 target_ulong target_addr, 562 socklen_t len) 563 { 564 struct target_sockaddr *target_saddr; 565 566 target_saddr = lock_user(target_addr, len, 1); 567 memcpy(addr, target_saddr, len); 568 addr->sa_family = tswap16(target_saddr->sa_family); 569 unlock_user(target_saddr, target_addr, 0); 570 } 571 572 static inline void host_to_target_sockaddr(target_ulong target_addr, 573 struct sockaddr *addr, 574 socklen_t len) 575 { 576 struct target_sockaddr *target_saddr; 577 578 target_saddr = lock_user(target_addr, len, 0); 579 memcpy(target_saddr, addr, len); 580 target_saddr->sa_family = tswap16(addr->sa_family); 581 unlock_user(target_saddr, target_addr, len); 582 } 583 584 /* ??? Should this also swap msgh->name? */ 585 static inline void target_to_host_cmsg(struct msghdr *msgh, 586 struct target_msghdr *target_msgh) 587 { 588 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh); 589 struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh); 590 socklen_t space = 0; 591 592 while (cmsg && target_cmsg) { 593 void *data = CMSG_DATA(cmsg); 594 void *target_data = TARGET_CMSG_DATA(target_cmsg); 595 596 int len = tswapl(target_cmsg->cmsg_len) 597 - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr)); 598 599 space += CMSG_SPACE(len); 600 if (space > msgh->msg_controllen) { 601 space -= CMSG_SPACE(len); 602 gemu_log("Host cmsg overflow\n"); 603 break; 604 } 605 606 cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level); 607 cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type); 608 cmsg->cmsg_len = CMSG_LEN(len); 609 610 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) { 611 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type); 612 memcpy(data, target_data, len); 613 } else { 614 int *fd = (int *)data; 615 int *target_fd = (int *)target_data; 616 int i, numfds = len / sizeof(int); 617 618 for (i = 0; i < numfds; i++) 619 fd[i] = tswap32(target_fd[i]); 620 } 621 622 cmsg = CMSG_NXTHDR(msgh, cmsg); 623 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg); 624 } 625 626 msgh->msg_controllen = space; 627 } 628 629 /* ??? Should this also swap msgh->name? */ 630 static inline void host_to_target_cmsg(struct target_msghdr *target_msgh, 631 struct msghdr *msgh) 632 { 633 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh); 634 struct target_cmsghdr *target_cmsg = TARGET_CMSG_FIRSTHDR(target_msgh); 635 socklen_t space = 0; 636 637 while (cmsg && target_cmsg) { 638 void *data = CMSG_DATA(cmsg); 639 void *target_data = TARGET_CMSG_DATA(target_cmsg); 640 641 int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr)); 642 643 space += TARGET_CMSG_SPACE(len); 644 if (space > tswapl(target_msgh->msg_controllen)) { 645 space -= TARGET_CMSG_SPACE(len); 646 gemu_log("Target cmsg overflow\n"); 647 break; 648 } 649 650 target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level); 651 target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type); 652 target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len)); 653 654 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) { 655 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type); 656 memcpy(target_data, data, len); 657 } else { 658 int *fd = (int *)data; 659 int *target_fd = (int *)target_data; 660 int i, numfds = len / sizeof(int); 661 662 for (i = 0; i < numfds; i++) 663 target_fd[i] = tswap32(fd[i]); 664 } 665 666 cmsg = CMSG_NXTHDR(msgh, cmsg); 667 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg); 668 } 669 670 msgh->msg_controllen = tswapl(space); 671 } 672 673 static long do_setsockopt(int sockfd, int level, int optname, 674 target_ulong optval, socklen_t optlen) 675 { 676 int val, ret; 677 678 switch(level) { 679 case SOL_TCP: 680 /* TCP options all take an 'int' value. */ 681 if (optlen < sizeof(uint32_t)) 682 return -EINVAL; 683 684 val = tget32(optval); 685 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val))); 686 break; 687 case SOL_IP: 688 switch(optname) { 689 case IP_TOS: 690 case IP_TTL: 691 case IP_HDRINCL: 692 case IP_ROUTER_ALERT: 693 case IP_RECVOPTS: 694 case IP_RETOPTS: 695 case IP_PKTINFO: 696 case IP_MTU_DISCOVER: 697 case IP_RECVERR: 698 case IP_RECVTOS: 699 #ifdef IP_FREEBIND 700 case IP_FREEBIND: 701 #endif 702 case IP_MULTICAST_TTL: 703 case IP_MULTICAST_LOOP: 704 val = 0; 705 if (optlen >= sizeof(uint32_t)) { 706 val = tget32(optval); 707 } else if (optlen >= 1) { 708 val = tget8(optval); 709 } 710 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val))); 711 break; 712 default: 713 goto unimplemented; 714 } 715 break; 716 case TARGET_SOL_SOCKET: 717 switch (optname) { 718 /* Options with 'int' argument. */ 719 case TARGET_SO_DEBUG: 720 optname = SO_DEBUG; 721 break; 722 case TARGET_SO_REUSEADDR: 723 optname = SO_REUSEADDR; 724 break; 725 case TARGET_SO_TYPE: 726 optname = SO_TYPE; 727 break; 728 case TARGET_SO_ERROR: 729 optname = SO_ERROR; 730 break; 731 case TARGET_SO_DONTROUTE: 732 optname = SO_DONTROUTE; 733 break; 734 case TARGET_SO_BROADCAST: 735 optname = SO_BROADCAST; 736 break; 737 case TARGET_SO_SNDBUF: 738 optname = SO_SNDBUF; 739 break; 740 case TARGET_SO_RCVBUF: 741 optname = SO_RCVBUF; 742 break; 743 case TARGET_SO_KEEPALIVE: 744 optname = SO_KEEPALIVE; 745 break; 746 case TARGET_SO_OOBINLINE: 747 optname = SO_OOBINLINE; 748 break; 749 case TARGET_SO_NO_CHECK: 750 optname = SO_NO_CHECK; 751 break; 752 case TARGET_SO_PRIORITY: 753 optname = SO_PRIORITY; 754 break; 755 #ifdef SO_BSDCOMPAT 756 case TARGET_SO_BSDCOMPAT: 757 optname = SO_BSDCOMPAT; 758 break; 759 #endif 760 case TARGET_SO_PASSCRED: 761 optname = SO_PASSCRED; 762 break; 763 case TARGET_SO_TIMESTAMP: 764 optname = SO_TIMESTAMP; 765 break; 766 case TARGET_SO_RCVLOWAT: 767 optname = SO_RCVLOWAT; 768 break; 769 case TARGET_SO_RCVTIMEO: 770 optname = SO_RCVTIMEO; 771 break; 772 case TARGET_SO_SNDTIMEO: 773 optname = SO_SNDTIMEO; 774 break; 775 break; 776 default: 777 goto unimplemented; 778 } 779 if (optlen < sizeof(uint32_t)) 780 return -EINVAL; 781 782 val = tget32(optval); 783 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val))); 784 break; 785 default: 786 unimplemented: 787 gemu_log("Unsupported setsockopt level=%d optname=%d \n", level, optname); 788 ret = -ENOSYS; 789 } 790 return ret; 791 } 792 793 static long do_getsockopt(int sockfd, int level, int optname, 794 target_ulong optval, target_ulong optlen) 795 { 796 int len, lv, val, ret; 797 798 switch(level) { 799 case TARGET_SOL_SOCKET: 800 level = SOL_SOCKET; 801 switch (optname) { 802 case TARGET_SO_LINGER: 803 case TARGET_SO_RCVTIMEO: 804 case TARGET_SO_SNDTIMEO: 805 case TARGET_SO_PEERCRED: 806 case TARGET_SO_PEERNAME: 807 /* These don't just return a single integer */ 808 goto unimplemented; 809 default: 810 goto int_case; 811 } 812 break; 813 case SOL_TCP: 814 /* TCP options all take an 'int' value. */ 815 int_case: 816 len = tget32(optlen); 817 if (len < 0) 818 return -EINVAL; 819 lv = sizeof(int); 820 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv)); 821 if (ret < 0) 822 return ret; 823 val = tswap32(val); 824 if (len > lv) 825 len = lv; 826 if (len == 4) 827 tput32(optval, val); 828 else 829 tput8(optval, val); 830 tput32(optlen, len); 831 break; 832 case SOL_IP: 833 switch(optname) { 834 case IP_TOS: 835 case IP_TTL: 836 case IP_HDRINCL: 837 case IP_ROUTER_ALERT: 838 case IP_RECVOPTS: 839 case IP_RETOPTS: 840 case IP_PKTINFO: 841 case IP_MTU_DISCOVER: 842 case IP_RECVERR: 843 case IP_RECVTOS: 844 #ifdef IP_FREEBIND 845 case IP_FREEBIND: 846 #endif 847 case IP_MULTICAST_TTL: 848 case IP_MULTICAST_LOOP: 849 len = tget32(optlen); 850 if (len < 0) 851 return -EINVAL; 852 lv = sizeof(int); 853 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv)); 854 if (ret < 0) 855 return ret; 856 if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) { 857 len = 1; 858 tput32(optlen, len); 859 tput8(optval, val); 860 } else { 861 if (len > sizeof(int)) 862 len = sizeof(int); 863 tput32(optlen, len); 864 tput32(optval, val); 865 } 866 break; 867 default: 868 goto unimplemented; 869 } 870 break; 871 default: 872 unimplemented: 873 gemu_log("getsockopt level=%d optname=%d not yet supported\n", 874 level, optname); 875 ret = -ENOSYS; 876 break; 877 } 878 return ret; 879 } 880 881 static void lock_iovec(struct iovec *vec, target_ulong target_addr, 882 int count, int copy) 883 { 884 struct target_iovec *target_vec; 885 target_ulong base; 886 int i; 887 888 target_vec = lock_user(target_addr, count * sizeof(struct target_iovec), 1); 889 for(i = 0;i < count; i++) { 890 base = tswapl(target_vec[i].iov_base); 891 vec[i].iov_len = tswapl(target_vec[i].iov_len); 892 vec[i].iov_base = lock_user(base, vec[i].iov_len, copy); 893 } 894 unlock_user (target_vec, target_addr, 0); 895 } 896 897 static void unlock_iovec(struct iovec *vec, target_ulong target_addr, 898 int count, int copy) 899 { 900 struct target_iovec *target_vec; 901 target_ulong base; 902 int i; 903 904 target_vec = lock_user(target_addr, count * sizeof(struct target_iovec), 1); 905 for(i = 0;i < count; i++) { 906 base = tswapl(target_vec[i].iov_base); 907 unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0); 908 } 909 unlock_user (target_vec, target_addr, 0); 910 } 911 912 static long do_socket(int domain, int type, int protocol) 913 { 914 #if defined(TARGET_MIPS) 915 switch(type) { 916 case TARGET_SOCK_DGRAM: 917 type = SOCK_DGRAM; 918 break; 919 case TARGET_SOCK_STREAM: 920 type = SOCK_STREAM; 921 break; 922 case TARGET_SOCK_RAW: 923 type = SOCK_RAW; 924 break; 925 case TARGET_SOCK_RDM: 926 type = SOCK_RDM; 927 break; 928 case TARGET_SOCK_SEQPACKET: 929 type = SOCK_SEQPACKET; 930 break; 931 case TARGET_SOCK_PACKET: 932 type = SOCK_PACKET; 933 break; 934 } 935 #endif 936 return get_errno(socket(domain, type, protocol)); 937 } 938 939 static long do_bind(int sockfd, target_ulong target_addr, 940 socklen_t addrlen) 941 { 942 void *addr = alloca(addrlen); 943 944 target_to_host_sockaddr(addr, target_addr, addrlen); 945 return get_errno(bind(sockfd, addr, addrlen)); 946 } 947 948 static long do_connect(int sockfd, target_ulong target_addr, 949 socklen_t addrlen) 950 { 951 void *addr = alloca(addrlen); 952 953 target_to_host_sockaddr(addr, target_addr, addrlen); 954 return get_errno(connect(sockfd, addr, addrlen)); 955 } 956 957 static long do_sendrecvmsg(int fd, target_ulong target_msg, 958 int flags, int send) 959 { 960 long ret; 961 struct target_msghdr *msgp; 962 struct msghdr msg; 963 int count; 964 struct iovec *vec; 965 target_ulong target_vec; 966 967 lock_user_struct(msgp, target_msg, 1); 968 if (msgp->msg_name) { 969 msg.msg_namelen = tswap32(msgp->msg_namelen); 970 msg.msg_name = alloca(msg.msg_namelen); 971 target_to_host_sockaddr(msg.msg_name, tswapl(msgp->msg_name), 972 msg.msg_namelen); 973 } else { 974 msg.msg_name = NULL; 975 msg.msg_namelen = 0; 976 } 977 msg.msg_controllen = 2 * tswapl(msgp->msg_controllen); 978 msg.msg_control = alloca(msg.msg_controllen); 979 msg.msg_flags = tswap32(msgp->msg_flags); 980 981 count = tswapl(msgp->msg_iovlen); 982 vec = alloca(count * sizeof(struct iovec)); 983 target_vec = tswapl(msgp->msg_iov); 984 lock_iovec(vec, target_vec, count, send); 985 msg.msg_iovlen = count; 986 msg.msg_iov = vec; 987 988 if (send) { 989 target_to_host_cmsg(&msg, msgp); 990 ret = get_errno(sendmsg(fd, &msg, flags)); 991 } else { 992 ret = get_errno(recvmsg(fd, &msg, flags)); 993 if (!is_error(ret)) 994 host_to_target_cmsg(msgp, &msg); 995 } 996 unlock_iovec(vec, target_vec, count, !send); 997 return ret; 998 } 999 1000 static long do_accept(int fd, target_ulong target_addr, 1001 target_ulong target_addrlen) 1002 { 1003 socklen_t addrlen = tget32(target_addrlen); 1004 void *addr = alloca(addrlen); 1005 long ret; 1006 1007 ret = get_errno(accept(fd, addr, &addrlen)); 1008 if (!is_error(ret)) { 1009 host_to_target_sockaddr(target_addr, addr, addrlen); 1010 tput32(target_addrlen, addrlen); 1011 } 1012 return ret; 1013 } 1014 1015 static long do_getpeername(int fd, target_ulong target_addr, 1016 target_ulong target_addrlen) 1017 { 1018 socklen_t addrlen = tget32(target_addrlen); 1019 void *addr = alloca(addrlen); 1020 long ret; 1021 1022 ret = get_errno(getpeername(fd, addr, &addrlen)); 1023 if (!is_error(ret)) { 1024 host_to_target_sockaddr(target_addr, addr, addrlen); 1025 tput32(target_addrlen, addrlen); 1026 } 1027 return ret; 1028 } 1029 1030 static long do_getsockname(int fd, target_ulong target_addr, 1031 target_ulong target_addrlen) 1032 { 1033 socklen_t addrlen = tget32(target_addrlen); 1034 void *addr = alloca(addrlen); 1035 long ret; 1036 1037 ret = get_errno(getsockname(fd, addr, &addrlen)); 1038 if (!is_error(ret)) { 1039 host_to_target_sockaddr(target_addr, addr, addrlen); 1040 tput32(target_addrlen, addrlen); 1041 } 1042 return ret; 1043 } 1044 1045 static long do_socketpair(int domain, int type, int protocol, 1046 target_ulong target_tab) 1047 { 1048 int tab[2]; 1049 long ret; 1050 1051 ret = get_errno(socketpair(domain, type, protocol, tab)); 1052 if (!is_error(ret)) { 1053 tput32(target_tab, tab[0]); 1054 tput32(target_tab + 4, tab[1]); 1055 } 1056 return ret; 1057 } 1058 1059 static long do_sendto(int fd, target_ulong msg, size_t len, int flags, 1060 target_ulong target_addr, socklen_t addrlen) 1061 { 1062 void *addr; 1063 void *host_msg; 1064 long ret; 1065 1066 host_msg = lock_user(msg, len, 1); 1067 if (target_addr) { 1068 addr = alloca(addrlen); 1069 target_to_host_sockaddr(addr, target_addr, addrlen); 1070 ret = get_errno(sendto(fd, host_msg, len, flags, addr, addrlen)); 1071 } else { 1072 ret = get_errno(send(fd, host_msg, len, flags)); 1073 } 1074 unlock_user(host_msg, msg, 0); 1075 return ret; 1076 } 1077 1078 static long do_recvfrom(int fd, target_ulong msg, size_t len, int flags, 1079 target_ulong target_addr, target_ulong target_addrlen) 1080 { 1081 socklen_t addrlen; 1082 void *addr; 1083 void *host_msg; 1084 long ret; 1085 1086 host_msg = lock_user(msg, len, 0); 1087 if (target_addr) { 1088 addrlen = tget32(target_addrlen); 1089 addr = alloca(addrlen); 1090 ret = get_errno(recvfrom(fd, host_msg, len, flags, addr, &addrlen)); 1091 } else { 1092 addr = NULL; /* To keep compiler quiet. */ 1093 ret = get_errno(recv(fd, host_msg, len, flags)); 1094 } 1095 if (!is_error(ret)) { 1096 if (target_addr) { 1097 host_to_target_sockaddr(target_addr, addr, addrlen); 1098 tput32(target_addrlen, addrlen); 1099 } 1100 unlock_user(host_msg, msg, len); 1101 } else { 1102 unlock_user(host_msg, msg, 0); 1103 } 1104 return ret; 1105 } 1106 1107 static long do_socketcall(int num, target_ulong vptr) 1108 { 1109 long ret; 1110 const int n = sizeof(target_ulong); 1111 1112 switch(num) { 1113 case SOCKOP_socket: 1114 { 1115 int domain = tgetl(vptr); 1116 int type = tgetl(vptr + n); 1117 int protocol = tgetl(vptr + 2 * n); 1118 ret = do_socket(domain, type, protocol); 1119 } 1120 break; 1121 case SOCKOP_bind: 1122 { 1123 int sockfd = tgetl(vptr); 1124 target_ulong target_addr = tgetl(vptr + n); 1125 socklen_t addrlen = tgetl(vptr + 2 * n); 1126 ret = do_bind(sockfd, target_addr, addrlen); 1127 } 1128 break; 1129 case SOCKOP_connect: 1130 { 1131 int sockfd = tgetl(vptr); 1132 target_ulong target_addr = tgetl(vptr + n); 1133 socklen_t addrlen = tgetl(vptr + 2 * n); 1134 ret = do_connect(sockfd, target_addr, addrlen); 1135 } 1136 break; 1137 case SOCKOP_listen: 1138 { 1139 int sockfd = tgetl(vptr); 1140 int backlog = tgetl(vptr + n); 1141 ret = get_errno(listen(sockfd, backlog)); 1142 } 1143 break; 1144 case SOCKOP_accept: 1145 { 1146 int sockfd = tgetl(vptr); 1147 target_ulong target_addr = tgetl(vptr + n); 1148 target_ulong target_addrlen = tgetl(vptr + 2 * n); 1149 ret = do_accept(sockfd, target_addr, target_addrlen); 1150 } 1151 break; 1152 case SOCKOP_getsockname: 1153 { 1154 int sockfd = tgetl(vptr); 1155 target_ulong target_addr = tgetl(vptr + n); 1156 target_ulong target_addrlen = tgetl(vptr + 2 * n); 1157 ret = do_getsockname(sockfd, target_addr, target_addrlen); 1158 } 1159 break; 1160 case SOCKOP_getpeername: 1161 { 1162 int sockfd = tgetl(vptr); 1163 target_ulong target_addr = tgetl(vptr + n); 1164 target_ulong target_addrlen = tgetl(vptr + 2 * n); 1165 ret = do_getpeername(sockfd, target_addr, target_addrlen); 1166 } 1167 break; 1168 case SOCKOP_socketpair: 1169 { 1170 int domain = tgetl(vptr); 1171 int type = tgetl(vptr + n); 1172 int protocol = tgetl(vptr + 2 * n); 1173 target_ulong tab = tgetl(vptr + 3 * n); 1174 ret = do_socketpair(domain, type, protocol, tab); 1175 } 1176 break; 1177 case SOCKOP_send: 1178 { 1179 int sockfd = tgetl(vptr); 1180 target_ulong msg = tgetl(vptr + n); 1181 size_t len = tgetl(vptr + 2 * n); 1182 int flags = tgetl(vptr + 3 * n); 1183 ret = do_sendto(sockfd, msg, len, flags, 0, 0); 1184 } 1185 break; 1186 case SOCKOP_recv: 1187 { 1188 int sockfd = tgetl(vptr); 1189 target_ulong msg = tgetl(vptr + n); 1190 size_t len = tgetl(vptr + 2 * n); 1191 int flags = tgetl(vptr + 3 * n); 1192 ret = do_recvfrom(sockfd, msg, len, flags, 0, 0); 1193 } 1194 break; 1195 case SOCKOP_sendto: 1196 { 1197 int sockfd = tgetl(vptr); 1198 target_ulong msg = tgetl(vptr + n); 1199 size_t len = tgetl(vptr + 2 * n); 1200 int flags = tgetl(vptr + 3 * n); 1201 target_ulong addr = tgetl(vptr + 4 * n); 1202 socklen_t addrlen = tgetl(vptr + 5 * n); 1203 ret = do_sendto(sockfd, msg, len, flags, addr, addrlen); 1204 } 1205 break; 1206 case SOCKOP_recvfrom: 1207 { 1208 int sockfd = tgetl(vptr); 1209 target_ulong msg = tgetl(vptr + n); 1210 size_t len = tgetl(vptr + 2 * n); 1211 int flags = tgetl(vptr + 3 * n); 1212 target_ulong addr = tgetl(vptr + 4 * n); 1213 target_ulong addrlen = tgetl(vptr + 5 * n); 1214 ret = do_recvfrom(sockfd, msg, len, flags, addr, addrlen); 1215 } 1216 break; 1217 case SOCKOP_shutdown: 1218 { 1219 int sockfd = tgetl(vptr); 1220 int how = tgetl(vptr + n); 1221 1222 ret = get_errno(shutdown(sockfd, how)); 1223 } 1224 break; 1225 case SOCKOP_sendmsg: 1226 case SOCKOP_recvmsg: 1227 { 1228 int fd; 1229 target_ulong target_msg; 1230 int flags; 1231 1232 fd = tgetl(vptr); 1233 target_msg = tgetl(vptr + n); 1234 flags = tgetl(vptr + 2 * n); 1235 1236 ret = do_sendrecvmsg(fd, target_msg, flags, 1237 (num == SOCKOP_sendmsg)); 1238 } 1239 break; 1240 case SOCKOP_setsockopt: 1241 { 1242 int sockfd = tgetl(vptr); 1243 int level = tgetl(vptr + n); 1244 int optname = tgetl(vptr + 2 * n); 1245 target_ulong optval = tgetl(vptr + 3 * n); 1246 socklen_t optlen = tgetl(vptr + 4 * n); 1247 1248 ret = do_setsockopt(sockfd, level, optname, optval, optlen); 1249 } 1250 break; 1251 case SOCKOP_getsockopt: 1252 { 1253 int sockfd = tgetl(vptr); 1254 int level = tgetl(vptr + n); 1255 int optname = tgetl(vptr + 2 * n); 1256 target_ulong optval = tgetl(vptr + 3 * n); 1257 target_ulong poptlen = tgetl(vptr + 4 * n); 1258 1259 ret = do_getsockopt(sockfd, level, optname, optval, poptlen); 1260 } 1261 break; 1262 default: 1263 gemu_log("Unsupported socketcall: %d\n", num); 1264 ret = -ENOSYS; 1265 break; 1266 } 1267 return ret; 1268 } 1269 1270 #define N_SHM_REGIONS 32 1271 1272 static struct shm_region { 1273 uint32_t start; 1274 uint32_t size; 1275 } shm_regions[N_SHM_REGIONS]; 1276 1277 struct target_ipc_perm 1278 { 1279 target_long __key; 1280 target_ulong uid; 1281 target_ulong gid; 1282 target_ulong cuid; 1283 target_ulong cgid; 1284 unsigned short int mode; 1285 unsigned short int __pad1; 1286 unsigned short int __seq; 1287 unsigned short int __pad2; 1288 target_ulong __unused1; 1289 target_ulong __unused2; 1290 }; 1291 1292 struct target_semid_ds 1293 { 1294 struct target_ipc_perm sem_perm; 1295 target_ulong sem_otime; 1296 target_ulong __unused1; 1297 target_ulong sem_ctime; 1298 target_ulong __unused2; 1299 target_ulong sem_nsems; 1300 target_ulong __unused3; 1301 target_ulong __unused4; 1302 }; 1303 1304 static inline void target_to_host_ipc_perm(struct ipc_perm *host_ip, 1305 target_ulong target_addr) 1306 { 1307 struct target_ipc_perm *target_ip; 1308 struct target_semid_ds *target_sd; 1309 1310 lock_user_struct(target_sd, target_addr, 1); 1311 target_ip=&(target_sd->sem_perm); 1312 host_ip->__key = tswapl(target_ip->__key); 1313 host_ip->uid = tswapl(target_ip->uid); 1314 host_ip->gid = tswapl(target_ip->gid); 1315 host_ip->cuid = tswapl(target_ip->cuid); 1316 host_ip->cgid = tswapl(target_ip->cgid); 1317 host_ip->mode = tswapl(target_ip->mode); 1318 unlock_user_struct(target_sd, target_addr, 0); 1319 } 1320 1321 static inline void host_to_target_ipc_perm(target_ulong target_addr, 1322 struct ipc_perm *host_ip) 1323 { 1324 struct target_ipc_perm *target_ip; 1325 struct target_semid_ds *target_sd; 1326 1327 lock_user_struct(target_sd, target_addr, 0); 1328 target_ip = &(target_sd->sem_perm); 1329 target_ip->__key = tswapl(host_ip->__key); 1330 target_ip->uid = tswapl(host_ip->uid); 1331 target_ip->gid = tswapl(host_ip->gid); 1332 target_ip->cuid = tswapl(host_ip->cuid); 1333 target_ip->cgid = tswapl(host_ip->cgid); 1334 target_ip->mode = tswapl(host_ip->mode); 1335 unlock_user_struct(target_sd, target_addr, 1); 1336 } 1337 1338 static inline void target_to_host_semid_ds(struct semid_ds *host_sd, 1339 target_ulong target_addr) 1340 { 1341 struct target_semid_ds *target_sd; 1342 1343 lock_user_struct(target_sd, target_addr, 1); 1344 target_to_host_ipc_perm(&(host_sd->sem_perm),target_addr); 1345 host_sd->sem_nsems = tswapl(target_sd->sem_nsems); 1346 host_sd->sem_otime = tswapl(target_sd->sem_otime); 1347 host_sd->sem_ctime = tswapl(target_sd->sem_ctime); 1348 unlock_user_struct(target_sd, target_addr, 0); 1349 } 1350 1351 static inline void host_to_target_semid_ds(target_ulong target_addr, 1352 struct semid_ds *host_sd) 1353 { 1354 struct target_semid_ds *target_sd; 1355 1356 lock_user_struct(target_sd, target_addr, 0); 1357 host_to_target_ipc_perm(target_addr,&(host_sd->sem_perm)); 1358 target_sd->sem_nsems = tswapl(host_sd->sem_nsems); 1359 target_sd->sem_otime = tswapl(host_sd->sem_otime); 1360 target_sd->sem_ctime = tswapl(host_sd->sem_ctime); 1361 unlock_user_struct(target_sd, target_addr, 1); 1362 } 1363 1364 union semun { 1365 int val; 1366 struct semid_ds *buf; 1367 unsigned short *array; 1368 }; 1369 1370 union target_semun { 1371 int val; 1372 target_long buf; 1373 unsigned short int *array; 1374 }; 1375 1376 static inline void target_to_host_semun(unsigned long cmd, 1377 union semun *host_su, 1378 target_ulong target_addr, 1379 struct semid_ds *ds) 1380 { 1381 union target_semun *target_su; 1382 1383 switch( cmd ) { 1384 case IPC_STAT: 1385 case IPC_SET: 1386 lock_user_struct(target_su, target_addr, 1); 1387 target_to_host_semid_ds(ds,target_su->buf); 1388 host_su->buf = ds; 1389 unlock_user_struct(target_su, target_addr, 0); 1390 break; 1391 case GETVAL: 1392 case SETVAL: 1393 lock_user_struct(target_su, target_addr, 1); 1394 host_su->val = tswapl(target_su->val); 1395 unlock_user_struct(target_su, target_addr, 0); 1396 break; 1397 case GETALL: 1398 case SETALL: 1399 lock_user_struct(target_su, target_addr, 1); 1400 *host_su->array = tswap16(*target_su->array); 1401 unlock_user_struct(target_su, target_addr, 0); 1402 break; 1403 default: 1404 gemu_log("semun operation not fully supported: %d\n", (int)cmd); 1405 } 1406 } 1407 1408 static inline void host_to_target_semun(unsigned long cmd, 1409 target_ulong target_addr, 1410 union semun *host_su, 1411 struct semid_ds *ds) 1412 { 1413 union target_semun *target_su; 1414 1415 switch( cmd ) { 1416 case IPC_STAT: 1417 case IPC_SET: 1418 lock_user_struct(target_su, target_addr, 0); 1419 host_to_target_semid_ds(target_su->buf,ds); 1420 unlock_user_struct(target_su, target_addr, 1); 1421 break; 1422 case GETVAL: 1423 case SETVAL: 1424 lock_user_struct(target_su, target_addr, 0); 1425 target_su->val = tswapl(host_su->val); 1426 unlock_user_struct(target_su, target_addr, 1); 1427 break; 1428 case GETALL: 1429 case SETALL: 1430 lock_user_struct(target_su, target_addr, 0); 1431 *target_su->array = tswap16(*host_su->array); 1432 unlock_user_struct(target_su, target_addr, 1); 1433 break; 1434 default: 1435 gemu_log("semun operation not fully supported: %d\n", (int)cmd); 1436 } 1437 } 1438 1439 static inline long do_semctl(long first, long second, long third, long ptr) 1440 { 1441 union semun arg; 1442 struct semid_ds dsarg; 1443 int cmd = third&0xff; 1444 long ret = 0; 1445 1446 switch( cmd ) { 1447 case GETVAL: 1448 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1449 ret = get_errno(semctl(first, second, cmd, arg)); 1450 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1451 break; 1452 case SETVAL: 1453 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1454 ret = get_errno(semctl(first, second, cmd, arg)); 1455 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1456 break; 1457 case GETALL: 1458 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1459 ret = get_errno(semctl(first, second, cmd, arg)); 1460 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1461 break; 1462 case SETALL: 1463 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1464 ret = get_errno(semctl(first, second, cmd, arg)); 1465 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1466 break; 1467 case IPC_STAT: 1468 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1469 ret = get_errno(semctl(first, second, cmd, arg)); 1470 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1471 break; 1472 case IPC_SET: 1473 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1474 ret = get_errno(semctl(first, second, cmd, arg)); 1475 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1476 break; 1477 default: 1478 ret = get_errno(semctl(first, second, cmd, arg)); 1479 } 1480 1481 return ret; 1482 } 1483 1484 struct target_msqid_ds 1485 { 1486 struct target_ipc_perm msg_perm; 1487 target_ulong msg_stime; 1488 target_ulong __unused1; 1489 target_ulong msg_rtime; 1490 target_ulong __unused2; 1491 target_ulong msg_ctime; 1492 target_ulong __unused3; 1493 target_ulong __msg_cbytes; 1494 target_ulong msg_qnum; 1495 target_ulong msg_qbytes; 1496 target_ulong msg_lspid; 1497 target_ulong msg_lrpid; 1498 target_ulong __unused4; 1499 target_ulong __unused5; 1500 }; 1501 1502 static inline void target_to_host_msqid_ds(struct msqid_ds *host_md, 1503 target_ulong target_addr) 1504 { 1505 struct target_msqid_ds *target_md; 1506 1507 lock_user_struct(target_md, target_addr, 1); 1508 target_to_host_ipc_perm(&(host_md->msg_perm),target_addr); 1509 host_md->msg_stime = tswapl(target_md->msg_stime); 1510 host_md->msg_rtime = tswapl(target_md->msg_rtime); 1511 host_md->msg_ctime = tswapl(target_md->msg_ctime); 1512 host_md->__msg_cbytes = tswapl(target_md->__msg_cbytes); 1513 host_md->msg_qnum = tswapl(target_md->msg_qnum); 1514 host_md->msg_qbytes = tswapl(target_md->msg_qbytes); 1515 host_md->msg_lspid = tswapl(target_md->msg_lspid); 1516 host_md->msg_lrpid = tswapl(target_md->msg_lrpid); 1517 unlock_user_struct(target_md, target_addr, 0); 1518 } 1519 1520 static inline void host_to_target_msqid_ds(target_ulong target_addr, 1521 struct msqid_ds *host_md) 1522 { 1523 struct target_msqid_ds *target_md; 1524 1525 lock_user_struct(target_md, target_addr, 0); 1526 host_to_target_ipc_perm(target_addr,&(host_md->msg_perm)); 1527 target_md->msg_stime = tswapl(host_md->msg_stime); 1528 target_md->msg_rtime = tswapl(host_md->msg_rtime); 1529 target_md->msg_ctime = tswapl(host_md->msg_ctime); 1530 target_md->__msg_cbytes = tswapl(host_md->__msg_cbytes); 1531 target_md->msg_qnum = tswapl(host_md->msg_qnum); 1532 target_md->msg_qbytes = tswapl(host_md->msg_qbytes); 1533 target_md->msg_lspid = tswapl(host_md->msg_lspid); 1534 target_md->msg_lrpid = tswapl(host_md->msg_lrpid); 1535 unlock_user_struct(target_md, target_addr, 1); 1536 } 1537 1538 static inline long do_msgctl(long first, long second, long ptr) 1539 { 1540 struct msqid_ds dsarg; 1541 int cmd = second&0xff; 1542 long ret = 0; 1543 switch( cmd ) { 1544 case IPC_STAT: 1545 case IPC_SET: 1546 target_to_host_msqid_ds(&dsarg,ptr); 1547 ret = get_errno(msgctl(first, cmd, &dsarg)); 1548 host_to_target_msqid_ds(ptr,&dsarg); 1549 default: 1550 ret = get_errno(msgctl(first, cmd, &dsarg)); 1551 } 1552 return ret; 1553 } 1554 1555 struct target_msgbuf { 1556 target_ulong mtype; 1557 char mtext[1]; 1558 }; 1559 1560 static inline long do_msgsnd(long msqid, long msgp, long msgsz, long msgflg) 1561 { 1562 struct target_msgbuf *target_mb; 1563 struct msgbuf *host_mb; 1564 long ret = 0; 1565 1566 lock_user_struct(target_mb,msgp,0); 1567 host_mb = malloc(msgsz+sizeof(long)); 1568 host_mb->mtype = tswapl(target_mb->mtype); 1569 memcpy(host_mb->mtext,target_mb->mtext,msgsz); 1570 ret = get_errno(msgsnd(msqid, host_mb, msgsz, msgflg)); 1571 free(host_mb); 1572 unlock_user_struct(target_mb, msgp, 0); 1573 1574 return ret; 1575 } 1576 1577 static inline long do_msgrcv(long msqid, long msgp, long msgsz, long msgtype, long msgflg) 1578 { 1579 struct target_msgbuf *target_mb; 1580 struct msgbuf *host_mb; 1581 long ret = 0; 1582 1583 lock_user_struct(target_mb, msgp, 0); 1584 host_mb = malloc(msgsz+sizeof(long)); 1585 ret = get_errno(msgrcv(msqid, host_mb, msgsz, 1, msgflg)); 1586 if (ret > 0) 1587 memcpy(target_mb->mtext, host_mb->mtext, ret); 1588 target_mb->mtype = tswapl(host_mb->mtype); 1589 free(host_mb); 1590 unlock_user_struct(target_mb, msgp, 0); 1591 1592 return ret; 1593 } 1594 1595 /* ??? This only works with linear mappings. */ 1596 static long do_ipc(long call, long first, long second, long third, 1597 long ptr, long fifth) 1598 { 1599 int version; 1600 long ret = 0; 1601 unsigned long raddr; 1602 struct shmid_ds shm_info; 1603 int i; 1604 1605 version = call >> 16; 1606 call &= 0xffff; 1607 1608 switch (call) { 1609 case IPCOP_semop: 1610 ret = get_errno(semop(first,(struct sembuf *) ptr, second)); 1611 break; 1612 1613 case IPCOP_semget: 1614 ret = get_errno(semget(first, second, third)); 1615 break; 1616 1617 case IPCOP_semctl: 1618 ret = do_semctl(first, second, third, ptr); 1619 break; 1620 1621 case IPCOP_semtimedop: 1622 gemu_log("Unsupported ipc call: %ld (version %d)\n", call, version); 1623 ret = -ENOSYS; 1624 break; 1625 1626 case IPCOP_msgget: 1627 ret = get_errno(msgget(first, second)); 1628 break; 1629 1630 case IPCOP_msgsnd: 1631 ret = do_msgsnd(first, ptr, second, third); 1632 break; 1633 1634 case IPCOP_msgctl: 1635 ret = do_msgctl(first, second, ptr); 1636 break; 1637 1638 case IPCOP_msgrcv: 1639 { 1640 struct ipc_kludge 1641 { 1642 void *__unbounded msgp; 1643 long int msgtyp; 1644 }; 1645 1646 struct ipc_kludge *foo = (struct ipc_kludge *) ptr; 1647 struct msgbuf *msgp = (struct msgbuf *) foo->msgp; 1648 1649 ret = do_msgrcv(first, (long)msgp, second, 0, third); 1650 1651 } 1652 break; 1653 1654 case IPCOP_shmat: 1655 /* SHM_* flags are the same on all linux platforms */ 1656 ret = get_errno((long) shmat(first, (void *) ptr, second)); 1657 if (is_error(ret)) 1658 break; 1659 raddr = ret; 1660 /* find out the length of the shared memory segment */ 1661 1662 ret = get_errno(shmctl(first, IPC_STAT, &shm_info)); 1663 if (is_error(ret)) { 1664 /* can't get length, bail out */ 1665 shmdt((void *) raddr); 1666 break; 1667 } 1668 page_set_flags(raddr, raddr + shm_info.shm_segsz, 1669 PAGE_VALID | PAGE_READ | 1670 ((second & SHM_RDONLY)? 0: PAGE_WRITE)); 1671 for (i = 0; i < N_SHM_REGIONS; ++i) { 1672 if (shm_regions[i].start == 0) { 1673 shm_regions[i].start = raddr; 1674 shm_regions[i].size = shm_info.shm_segsz; 1675 break; 1676 } 1677 } 1678 if (put_user(raddr, (uint32_t *)third)) 1679 return -EFAULT; 1680 ret = 0; 1681 break; 1682 case IPCOP_shmdt: 1683 for (i = 0; i < N_SHM_REGIONS; ++i) { 1684 if (shm_regions[i].start == ptr) { 1685 shm_regions[i].start = 0; 1686 page_set_flags(ptr, shm_regions[i].size, 0); 1687 break; 1688 } 1689 } 1690 ret = get_errno(shmdt((void *) ptr)); 1691 break; 1692 1693 case IPCOP_shmget: 1694 /* IPC_* flag values are the same on all linux platforms */ 1695 ret = get_errno(shmget(first, second, third)); 1696 break; 1697 1698 /* IPC_* and SHM_* command values are the same on all linux platforms */ 1699 case IPCOP_shmctl: 1700 switch(second) { 1701 case IPC_RMID: 1702 case SHM_LOCK: 1703 case SHM_UNLOCK: 1704 ret = get_errno(shmctl(first, second, NULL)); 1705 break; 1706 default: 1707 goto unimplemented; 1708 } 1709 break; 1710 default: 1711 unimplemented: 1712 gemu_log("Unsupported ipc call: %ld (version %d)\n", call, version); 1713 ret = -ENOSYS; 1714 break; 1715 } 1716 return ret; 1717 } 1718 1719 /* kernel structure types definitions */ 1720 #define IFNAMSIZ 16 1721 1722 #define STRUCT(name, list...) STRUCT_ ## name, 1723 #define STRUCT_SPECIAL(name) STRUCT_ ## name, 1724 enum { 1725 #include "syscall_types.h" 1726 }; 1727 #undef STRUCT 1728 #undef STRUCT_SPECIAL 1729 1730 #define STRUCT(name, list...) const argtype struct_ ## name ## _def[] = { list, TYPE_NULL }; 1731 #define STRUCT_SPECIAL(name) 1732 #include "syscall_types.h" 1733 #undef STRUCT 1734 #undef STRUCT_SPECIAL 1735 1736 typedef struct IOCTLEntry { 1737 unsigned int target_cmd; 1738 unsigned int host_cmd; 1739 const char *name; 1740 int access; 1741 const argtype arg_type[5]; 1742 } IOCTLEntry; 1743 1744 #define IOC_R 0x0001 1745 #define IOC_W 0x0002 1746 #define IOC_RW (IOC_R | IOC_W) 1747 1748 #define MAX_STRUCT_SIZE 4096 1749 1750 IOCTLEntry ioctl_entries[] = { 1751 #define IOCTL(cmd, access, types...) \ 1752 { TARGET_ ## cmd, cmd, #cmd, access, { types } }, 1753 #include "ioctls.h" 1754 { 0, 0, }, 1755 }; 1756 1757 /* ??? Implement proper locking for ioctls. */ 1758 static long do_ioctl(long fd, long cmd, long arg) 1759 { 1760 const IOCTLEntry *ie; 1761 const argtype *arg_type; 1762 long ret; 1763 uint8_t buf_temp[MAX_STRUCT_SIZE]; 1764 int target_size; 1765 void *argptr; 1766 1767 ie = ioctl_entries; 1768 for(;;) { 1769 if (ie->target_cmd == 0) { 1770 gemu_log("Unsupported ioctl: cmd=0x%04lx\n", cmd); 1771 return -ENOSYS; 1772 } 1773 if (ie->target_cmd == cmd) 1774 break; 1775 ie++; 1776 } 1777 arg_type = ie->arg_type; 1778 #if defined(DEBUG) 1779 gemu_log("ioctl: cmd=0x%04lx (%s)\n", cmd, ie->name); 1780 #endif 1781 switch(arg_type[0]) { 1782 case TYPE_NULL: 1783 /* no argument */ 1784 ret = get_errno(ioctl(fd, ie->host_cmd)); 1785 break; 1786 case TYPE_PTRVOID: 1787 case TYPE_INT: 1788 /* int argment */ 1789 ret = get_errno(ioctl(fd, ie->host_cmd, arg)); 1790 break; 1791 case TYPE_PTR: 1792 arg_type++; 1793 target_size = thunk_type_size(arg_type, 0); 1794 switch(ie->access) { 1795 case IOC_R: 1796 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 1797 if (!is_error(ret)) { 1798 argptr = lock_user(arg, target_size, 0); 1799 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET); 1800 unlock_user(argptr, arg, target_size); 1801 } 1802 break; 1803 case IOC_W: 1804 argptr = lock_user(arg, target_size, 1); 1805 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST); 1806 unlock_user(argptr, arg, 0); 1807 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 1808 break; 1809 default: 1810 case IOC_RW: 1811 argptr = lock_user(arg, target_size, 1); 1812 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST); 1813 unlock_user(argptr, arg, 0); 1814 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 1815 if (!is_error(ret)) { 1816 argptr = lock_user(arg, target_size, 0); 1817 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET); 1818 unlock_user(argptr, arg, target_size); 1819 } 1820 break; 1821 } 1822 break; 1823 default: 1824 gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n", cmd, arg_type[0]); 1825 ret = -ENOSYS; 1826 break; 1827 } 1828 return ret; 1829 } 1830 1831 bitmask_transtbl iflag_tbl[] = { 1832 { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK }, 1833 { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT }, 1834 { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR }, 1835 { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK }, 1836 { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK }, 1837 { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP }, 1838 { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR }, 1839 { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR }, 1840 { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL }, 1841 { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC }, 1842 { TARGET_IXON, TARGET_IXON, IXON, IXON }, 1843 { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY }, 1844 { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF }, 1845 { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL }, 1846 { 0, 0, 0, 0 } 1847 }; 1848 1849 bitmask_transtbl oflag_tbl[] = { 1850 { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST }, 1851 { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC }, 1852 { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR }, 1853 { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL }, 1854 { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR }, 1855 { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET }, 1856 { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL }, 1857 { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL }, 1858 { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 }, 1859 { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 }, 1860 { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 }, 1861 { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 }, 1862 { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 }, 1863 { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 }, 1864 { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 }, 1865 { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 }, 1866 { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 }, 1867 { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 }, 1868 { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 }, 1869 { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 }, 1870 { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 }, 1871 { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 }, 1872 { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 }, 1873 { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 }, 1874 { 0, 0, 0, 0 } 1875 }; 1876 1877 bitmask_transtbl cflag_tbl[] = { 1878 { TARGET_CBAUD, TARGET_B0, CBAUD, B0 }, 1879 { TARGET_CBAUD, TARGET_B50, CBAUD, B50 }, 1880 { TARGET_CBAUD, TARGET_B75, CBAUD, B75 }, 1881 { TARGET_CBAUD, TARGET_B110, CBAUD, B110 }, 1882 { TARGET_CBAUD, TARGET_B134, CBAUD, B134 }, 1883 { TARGET_CBAUD, TARGET_B150, CBAUD, B150 }, 1884 { TARGET_CBAUD, TARGET_B200, CBAUD, B200 }, 1885 { TARGET_CBAUD, TARGET_B300, CBAUD, B300 }, 1886 { TARGET_CBAUD, TARGET_B600, CBAUD, B600 }, 1887 { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 }, 1888 { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 }, 1889 { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 }, 1890 { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 }, 1891 { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 }, 1892 { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 }, 1893 { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 }, 1894 { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 }, 1895 { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 }, 1896 { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 }, 1897 { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 }, 1898 { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 }, 1899 { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 }, 1900 { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 }, 1901 { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 }, 1902 { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB }, 1903 { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD }, 1904 { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB }, 1905 { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD }, 1906 { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL }, 1907 { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL }, 1908 { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS }, 1909 { 0, 0, 0, 0 } 1910 }; 1911 1912 bitmask_transtbl lflag_tbl[] = { 1913 { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG }, 1914 { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON }, 1915 { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE }, 1916 { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO }, 1917 { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE }, 1918 { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK }, 1919 { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL }, 1920 { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH }, 1921 { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP }, 1922 { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL }, 1923 { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT }, 1924 { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE }, 1925 { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO }, 1926 { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN }, 1927 { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN }, 1928 { 0, 0, 0, 0 } 1929 }; 1930 1931 static void target_to_host_termios (void *dst, const void *src) 1932 { 1933 struct host_termios *host = dst; 1934 const struct target_termios *target = src; 1935 1936 host->c_iflag = 1937 target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl); 1938 host->c_oflag = 1939 target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl); 1940 host->c_cflag = 1941 target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl); 1942 host->c_lflag = 1943 target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl); 1944 host->c_line = target->c_line; 1945 1946 host->c_cc[VINTR] = target->c_cc[TARGET_VINTR]; 1947 host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT]; 1948 host->c_cc[VERASE] = target->c_cc[TARGET_VERASE]; 1949 host->c_cc[VKILL] = target->c_cc[TARGET_VKILL]; 1950 host->c_cc[VEOF] = target->c_cc[TARGET_VEOF]; 1951 host->c_cc[VTIME] = target->c_cc[TARGET_VTIME]; 1952 host->c_cc[VMIN] = target->c_cc[TARGET_VMIN]; 1953 host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC]; 1954 host->c_cc[VSTART] = target->c_cc[TARGET_VSTART]; 1955 host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP]; 1956 host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP]; 1957 host->c_cc[VEOL] = target->c_cc[TARGET_VEOL]; 1958 host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT]; 1959 host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD]; 1960 host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE]; 1961 host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT]; 1962 host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2]; 1963 } 1964 1965 static void host_to_target_termios (void *dst, const void *src) 1966 { 1967 struct target_termios *target = dst; 1968 const struct host_termios *host = src; 1969 1970 target->c_iflag = 1971 tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl)); 1972 target->c_oflag = 1973 tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl)); 1974 target->c_cflag = 1975 tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl)); 1976 target->c_lflag = 1977 tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl)); 1978 target->c_line = host->c_line; 1979 1980 target->c_cc[TARGET_VINTR] = host->c_cc[VINTR]; 1981 target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT]; 1982 target->c_cc[TARGET_VERASE] = host->c_cc[VERASE]; 1983 target->c_cc[TARGET_VKILL] = host->c_cc[VKILL]; 1984 target->c_cc[TARGET_VEOF] = host->c_cc[VEOF]; 1985 target->c_cc[TARGET_VTIME] = host->c_cc[VTIME]; 1986 target->c_cc[TARGET_VMIN] = host->c_cc[VMIN]; 1987 target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC]; 1988 target->c_cc[TARGET_VSTART] = host->c_cc[VSTART]; 1989 target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP]; 1990 target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP]; 1991 target->c_cc[TARGET_VEOL] = host->c_cc[VEOL]; 1992 target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT]; 1993 target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD]; 1994 target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE]; 1995 target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT]; 1996 target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2]; 1997 } 1998 1999 StructEntry struct_termios_def = { 2000 .convert = { host_to_target_termios, target_to_host_termios }, 2001 .size = { sizeof(struct target_termios), sizeof(struct host_termios) }, 2002 .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) }, 2003 }; 2004 2005 static bitmask_transtbl mmap_flags_tbl[] = { 2006 { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED }, 2007 { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE }, 2008 { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED }, 2009 { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS }, 2010 { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN }, 2011 { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE }, 2012 { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE }, 2013 { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED }, 2014 { 0, 0, 0, 0 } 2015 }; 2016 2017 static bitmask_transtbl fcntl_flags_tbl[] = { 2018 { TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, }, 2019 { TARGET_O_ACCMODE, TARGET_O_RDWR, O_ACCMODE, O_RDWR, }, 2020 { TARGET_O_CREAT, TARGET_O_CREAT, O_CREAT, O_CREAT, }, 2021 { TARGET_O_EXCL, TARGET_O_EXCL, O_EXCL, O_EXCL, }, 2022 { TARGET_O_NOCTTY, TARGET_O_NOCTTY, O_NOCTTY, O_NOCTTY, }, 2023 { TARGET_O_TRUNC, TARGET_O_TRUNC, O_TRUNC, O_TRUNC, }, 2024 { TARGET_O_APPEND, TARGET_O_APPEND, O_APPEND, O_APPEND, }, 2025 { TARGET_O_NONBLOCK, TARGET_O_NONBLOCK, O_NONBLOCK, O_NONBLOCK, }, 2026 { TARGET_O_SYNC, TARGET_O_SYNC, O_SYNC, O_SYNC, }, 2027 { TARGET_FASYNC, TARGET_FASYNC, FASYNC, FASYNC, }, 2028 { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, }, 2029 { TARGET_O_NOFOLLOW, TARGET_O_NOFOLLOW, O_NOFOLLOW, O_NOFOLLOW, }, 2030 { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, }, 2031 #if defined(O_DIRECT) 2032 { TARGET_O_DIRECT, TARGET_O_DIRECT, O_DIRECT, O_DIRECT, }, 2033 #endif 2034 { 0, 0, 0, 0 } 2035 }; 2036 2037 #if defined(TARGET_I386) 2038 2039 /* NOTE: there is really one LDT for all the threads */ 2040 uint8_t *ldt_table; 2041 2042 static int read_ldt(target_ulong ptr, unsigned long bytecount) 2043 { 2044 int size; 2045 void *p; 2046 2047 if (!ldt_table) 2048 return 0; 2049 size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE; 2050 if (size > bytecount) 2051 size = bytecount; 2052 p = lock_user(ptr, size, 0); 2053 /* ??? Shoudl this by byteswapped? */ 2054 memcpy(p, ldt_table, size); 2055 unlock_user(p, ptr, size); 2056 return size; 2057 } 2058 2059 /* XXX: add locking support */ 2060 static int write_ldt(CPUX86State *env, 2061 target_ulong ptr, unsigned long bytecount, int oldmode) 2062 { 2063 struct target_modify_ldt_ldt_s ldt_info; 2064 struct target_modify_ldt_ldt_s *target_ldt_info; 2065 int seg_32bit, contents, read_exec_only, limit_in_pages; 2066 int seg_not_present, useable; 2067 uint32_t *lp, entry_1, entry_2; 2068 2069 if (bytecount != sizeof(ldt_info)) 2070 return -EINVAL; 2071 lock_user_struct(target_ldt_info, ptr, 1); 2072 ldt_info.entry_number = tswap32(target_ldt_info->entry_number); 2073 ldt_info.base_addr = tswapl(target_ldt_info->base_addr); 2074 ldt_info.limit = tswap32(target_ldt_info->limit); 2075 ldt_info.flags = tswap32(target_ldt_info->flags); 2076 unlock_user_struct(target_ldt_info, ptr, 0); 2077 2078 if (ldt_info.entry_number >= TARGET_LDT_ENTRIES) 2079 return -EINVAL; 2080 seg_32bit = ldt_info.flags & 1; 2081 contents = (ldt_info.flags >> 1) & 3; 2082 read_exec_only = (ldt_info.flags >> 3) & 1; 2083 limit_in_pages = (ldt_info.flags >> 4) & 1; 2084 seg_not_present = (ldt_info.flags >> 5) & 1; 2085 useable = (ldt_info.flags >> 6) & 1; 2086 2087 if (contents == 3) { 2088 if (oldmode) 2089 return -EINVAL; 2090 if (seg_not_present == 0) 2091 return -EINVAL; 2092 } 2093 /* allocate the LDT */ 2094 if (!ldt_table) { 2095 ldt_table = malloc(TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE); 2096 if (!ldt_table) 2097 return -ENOMEM; 2098 memset(ldt_table, 0, TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE); 2099 env->ldt.base = h2g(ldt_table); 2100 env->ldt.limit = 0xffff; 2101 } 2102 2103 /* NOTE: same code as Linux kernel */ 2104 /* Allow LDTs to be cleared by the user. */ 2105 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) { 2106 if (oldmode || 2107 (contents == 0 && 2108 read_exec_only == 1 && 2109 seg_32bit == 0 && 2110 limit_in_pages == 0 && 2111 seg_not_present == 1 && 2112 useable == 0 )) { 2113 entry_1 = 0; 2114 entry_2 = 0; 2115 goto install; 2116 } 2117 } 2118 2119 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) | 2120 (ldt_info.limit & 0x0ffff); 2121 entry_2 = (ldt_info.base_addr & 0xff000000) | 2122 ((ldt_info.base_addr & 0x00ff0000) >> 16) | 2123 (ldt_info.limit & 0xf0000) | 2124 ((read_exec_only ^ 1) << 9) | 2125 (contents << 10) | 2126 ((seg_not_present ^ 1) << 15) | 2127 (seg_32bit << 22) | 2128 (limit_in_pages << 23) | 2129 0x7000; 2130 if (!oldmode) 2131 entry_2 |= (useable << 20); 2132 2133 /* Install the new entry ... */ 2134 install: 2135 lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3)); 2136 lp[0] = tswap32(entry_1); 2137 lp[1] = tswap32(entry_2); 2138 return 0; 2139 } 2140 2141 /* specific and weird i386 syscalls */ 2142 int do_modify_ldt(CPUX86State *env, int func, target_ulong ptr, unsigned long bytecount) 2143 { 2144 int ret = -ENOSYS; 2145 2146 switch (func) { 2147 case 0: 2148 ret = read_ldt(ptr, bytecount); 2149 break; 2150 case 1: 2151 ret = write_ldt(env, ptr, bytecount, 1); 2152 break; 2153 case 0x11: 2154 ret = write_ldt(env, ptr, bytecount, 0); 2155 break; 2156 } 2157 return ret; 2158 } 2159 2160 #endif /* defined(TARGET_I386) */ 2161 2162 /* this stack is the equivalent of the kernel stack associated with a 2163 thread/process */ 2164 #define NEW_STACK_SIZE 8192 2165 2166 static int clone_func(void *arg) 2167 { 2168 CPUState *env = arg; 2169 cpu_loop(env); 2170 /* never exits */ 2171 return 0; 2172 } 2173 2174 int do_fork(CPUState *env, unsigned int flags, unsigned long newsp) 2175 { 2176 int ret; 2177 TaskState *ts; 2178 uint8_t *new_stack; 2179 CPUState *new_env; 2180 2181 if (flags & CLONE_VM) { 2182 ts = malloc(sizeof(TaskState) + NEW_STACK_SIZE); 2183 memset(ts, 0, sizeof(TaskState)); 2184 new_stack = ts->stack; 2185 ts->used = 1; 2186 /* add in task state list */ 2187 ts->next = first_task_state; 2188 first_task_state = ts; 2189 /* we create a new CPU instance. */ 2190 new_env = cpu_copy(env); 2191 #if defined(TARGET_I386) 2192 if (!newsp) 2193 newsp = env->regs[R_ESP]; 2194 new_env->regs[R_ESP] = newsp; 2195 new_env->regs[R_EAX] = 0; 2196 #elif defined(TARGET_ARM) 2197 if (!newsp) 2198 newsp = env->regs[13]; 2199 new_env->regs[13] = newsp; 2200 new_env->regs[0] = 0; 2201 #elif defined(TARGET_SPARC) 2202 if (!newsp) 2203 newsp = env->regwptr[22]; 2204 new_env->regwptr[22] = newsp; 2205 new_env->regwptr[0] = 0; 2206 /* XXXXX */ 2207 printf ("HELPME: %s:%d\n", __FILE__, __LINE__); 2208 #elif defined(TARGET_M68K) 2209 if (!newsp) 2210 newsp = env->aregs[7]; 2211 new_env->aregs[7] = newsp; 2212 new_env->dregs[0] = 0; 2213 /* ??? is this sufficient? */ 2214 #elif defined(TARGET_MIPS) 2215 if (!newsp) 2216 newsp = env->gpr[29][env->current_tc]; 2217 new_env->gpr[29][env->current_tc] = newsp; 2218 #elif defined(TARGET_PPC) 2219 if (!newsp) 2220 newsp = env->gpr[1]; 2221 new_env->gpr[1] = newsp; 2222 { 2223 int i; 2224 for (i = 7; i < 32; i++) 2225 new_env->gpr[i] = 0; 2226 } 2227 #elif defined(TARGET_SH4) 2228 if (!newsp) 2229 newsp = env->gregs[15]; 2230 new_env->gregs[15] = newsp; 2231 /* XXXXX */ 2232 #elif defined(TARGET_ALPHA) 2233 if (!newsp) 2234 newsp = env->ir[30]; 2235 new_env->ir[30] = newsp; 2236 /* ? */ 2237 { 2238 int i; 2239 for (i = 7; i < 30; i++) 2240 new_env->ir[i] = 0; 2241 } 2242 #else 2243 #error unsupported target CPU 2244 #endif 2245 new_env->opaque = ts; 2246 #ifdef __ia64__ 2247 ret = __clone2(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env); 2248 #else 2249 ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env); 2250 #endif 2251 } else { 2252 /* if no CLONE_VM, we consider it is a fork */ 2253 if ((flags & ~CSIGNAL) != 0) 2254 return -EINVAL; 2255 ret = fork(); 2256 } 2257 return ret; 2258 } 2259 2260 static long do_fcntl(int fd, int cmd, target_ulong arg) 2261 { 2262 struct flock fl; 2263 struct target_flock *target_fl; 2264 struct flock64 fl64; 2265 struct target_flock64 *target_fl64; 2266 long ret; 2267 2268 switch(cmd) { 2269 case TARGET_F_GETLK: 2270 lock_user_struct(target_fl, arg, 1); 2271 fl.l_type = tswap16(target_fl->l_type); 2272 fl.l_whence = tswap16(target_fl->l_whence); 2273 fl.l_start = tswapl(target_fl->l_start); 2274 fl.l_len = tswapl(target_fl->l_len); 2275 fl.l_pid = tswapl(target_fl->l_pid); 2276 unlock_user_struct(target_fl, arg, 0); 2277 ret = fcntl(fd, cmd, &fl); 2278 if (ret == 0) { 2279 lock_user_struct(target_fl, arg, 0); 2280 target_fl->l_type = tswap16(fl.l_type); 2281 target_fl->l_whence = tswap16(fl.l_whence); 2282 target_fl->l_start = tswapl(fl.l_start); 2283 target_fl->l_len = tswapl(fl.l_len); 2284 target_fl->l_pid = tswapl(fl.l_pid); 2285 unlock_user_struct(target_fl, arg, 1); 2286 } 2287 break; 2288 2289 case TARGET_F_SETLK: 2290 case TARGET_F_SETLKW: 2291 lock_user_struct(target_fl, arg, 1); 2292 fl.l_type = tswap16(target_fl->l_type); 2293 fl.l_whence = tswap16(target_fl->l_whence); 2294 fl.l_start = tswapl(target_fl->l_start); 2295 fl.l_len = tswapl(target_fl->l_len); 2296 fl.l_pid = tswapl(target_fl->l_pid); 2297 unlock_user_struct(target_fl, arg, 0); 2298 ret = fcntl(fd, cmd, &fl); 2299 break; 2300 2301 case TARGET_F_GETLK64: 2302 lock_user_struct(target_fl64, arg, 1); 2303 fl64.l_type = tswap16(target_fl64->l_type) >> 1; 2304 fl64.l_whence = tswap16(target_fl64->l_whence); 2305 fl64.l_start = tswapl(target_fl64->l_start); 2306 fl64.l_len = tswapl(target_fl64->l_len); 2307 fl64.l_pid = tswap16(target_fl64->l_pid); 2308 unlock_user_struct(target_fl64, arg, 0); 2309 ret = fcntl(fd, cmd >> 1, &fl64); 2310 if (ret == 0) { 2311 lock_user_struct(target_fl64, arg, 0); 2312 target_fl64->l_type = tswap16(fl64.l_type) >> 1; 2313 target_fl64->l_whence = tswap16(fl64.l_whence); 2314 target_fl64->l_start = tswapl(fl64.l_start); 2315 target_fl64->l_len = tswapl(fl64.l_len); 2316 target_fl64->l_pid = tswapl(fl64.l_pid); 2317 unlock_user_struct(target_fl64, arg, 1); 2318 } 2319 break; 2320 case TARGET_F_SETLK64: 2321 case TARGET_F_SETLKW64: 2322 lock_user_struct(target_fl64, arg, 1); 2323 fl64.l_type = tswap16(target_fl64->l_type) >> 1; 2324 fl64.l_whence = tswap16(target_fl64->l_whence); 2325 fl64.l_start = tswapl(target_fl64->l_start); 2326 fl64.l_len = tswapl(target_fl64->l_len); 2327 fl64.l_pid = tswap16(target_fl64->l_pid); 2328 unlock_user_struct(target_fl64, arg, 0); 2329 ret = fcntl(fd, cmd >> 1, &fl64); 2330 break; 2331 2332 case F_GETFL: 2333 ret = fcntl(fd, cmd, arg); 2334 ret = host_to_target_bitmask(ret, fcntl_flags_tbl); 2335 break; 2336 2337 case F_SETFL: 2338 ret = fcntl(fd, cmd, target_to_host_bitmask(arg, fcntl_flags_tbl)); 2339 break; 2340 2341 default: 2342 ret = fcntl(fd, cmd, arg); 2343 break; 2344 } 2345 return ret; 2346 } 2347 2348 #ifdef USE_UID16 2349 2350 static inline int high2lowuid(int uid) 2351 { 2352 if (uid > 65535) 2353 return 65534; 2354 else 2355 return uid; 2356 } 2357 2358 static inline int high2lowgid(int gid) 2359 { 2360 if (gid > 65535) 2361 return 65534; 2362 else 2363 return gid; 2364 } 2365 2366 static inline int low2highuid(int uid) 2367 { 2368 if ((int16_t)uid == -1) 2369 return -1; 2370 else 2371 return uid; 2372 } 2373 2374 static inline int low2highgid(int gid) 2375 { 2376 if ((int16_t)gid == -1) 2377 return -1; 2378 else 2379 return gid; 2380 } 2381 2382 #endif /* USE_UID16 */ 2383 2384 void syscall_init(void) 2385 { 2386 IOCTLEntry *ie; 2387 const argtype *arg_type; 2388 int size; 2389 2390 #define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def); 2391 #define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def); 2392 #include "syscall_types.h" 2393 #undef STRUCT 2394 #undef STRUCT_SPECIAL 2395 2396 /* we patch the ioctl size if necessary. We rely on the fact that 2397 no ioctl has all the bits at '1' in the size field */ 2398 ie = ioctl_entries; 2399 while (ie->target_cmd != 0) { 2400 if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) == 2401 TARGET_IOC_SIZEMASK) { 2402 arg_type = ie->arg_type; 2403 if (arg_type[0] != TYPE_PTR) { 2404 fprintf(stderr, "cannot patch size for ioctl 0x%x\n", 2405 ie->target_cmd); 2406 exit(1); 2407 } 2408 arg_type++; 2409 size = thunk_type_size(arg_type, 0); 2410 ie->target_cmd = (ie->target_cmd & 2411 ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) | 2412 (size << TARGET_IOC_SIZESHIFT); 2413 } 2414 /* automatic consistency check if same arch */ 2415 #if defined(__i386__) && defined(TARGET_I386) 2416 if (ie->target_cmd != ie->host_cmd) { 2417 fprintf(stderr, "ERROR: ioctl: target=0x%x host=0x%x\n", 2418 ie->target_cmd, ie->host_cmd); 2419 } 2420 #endif 2421 ie++; 2422 } 2423 } 2424 2425 static inline uint64_t target_offset64(uint32_t word0, uint32_t word1) 2426 { 2427 #ifdef TARGET_WORDS_BIG_ENDIAN 2428 return ((uint64_t)word0 << 32) | word1; 2429 #else 2430 return ((uint64_t)word1 << 32) | word0; 2431 #endif 2432 } 2433 2434 #ifdef TARGET_NR_truncate64 2435 static inline long target_truncate64(void *cpu_env, const char *arg1, 2436 long arg2, long arg3, long arg4) 2437 { 2438 #ifdef TARGET_ARM 2439 if (((CPUARMState *)cpu_env)->eabi) 2440 { 2441 arg2 = arg3; 2442 arg3 = arg4; 2443 } 2444 #endif 2445 return get_errno(truncate64(arg1, target_offset64(arg2, arg3))); 2446 } 2447 #endif 2448 2449 #ifdef TARGET_NR_ftruncate64 2450 static inline long target_ftruncate64(void *cpu_env, long arg1, long arg2, 2451 long arg3, long arg4) 2452 { 2453 #ifdef TARGET_ARM 2454 if (((CPUARMState *)cpu_env)->eabi) 2455 { 2456 arg2 = arg3; 2457 arg3 = arg4; 2458 } 2459 #endif 2460 return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3))); 2461 } 2462 #endif 2463 2464 static inline void target_to_host_timespec(struct timespec *host_ts, 2465 target_ulong target_addr) 2466 { 2467 struct target_timespec *target_ts; 2468 2469 lock_user_struct(target_ts, target_addr, 1); 2470 host_ts->tv_sec = tswapl(target_ts->tv_sec); 2471 host_ts->tv_nsec = tswapl(target_ts->tv_nsec); 2472 unlock_user_struct(target_ts, target_addr, 0); 2473 } 2474 2475 static inline void host_to_target_timespec(target_ulong target_addr, 2476 struct timespec *host_ts) 2477 { 2478 struct target_timespec *target_ts; 2479 2480 lock_user_struct(target_ts, target_addr, 0); 2481 target_ts->tv_sec = tswapl(host_ts->tv_sec); 2482 target_ts->tv_nsec = tswapl(host_ts->tv_nsec); 2483 unlock_user_struct(target_ts, target_addr, 1); 2484 } 2485 2486 long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3, 2487 long arg4, long arg5, long arg6) 2488 { 2489 long ret; 2490 struct stat st; 2491 struct statfs stfs; 2492 void *p; 2493 2494 #ifdef DEBUG 2495 gemu_log("syscall %d", num); 2496 #endif 2497 switch(num) { 2498 case TARGET_NR_exit: 2499 #ifdef HAVE_GPROF 2500 _mcleanup(); 2501 #endif 2502 gdb_exit(cpu_env, arg1); 2503 /* XXX: should free thread stack and CPU env */ 2504 _exit(arg1); 2505 ret = 0; /* avoid warning */ 2506 break; 2507 case TARGET_NR_read: 2508 page_unprotect_range(arg2, arg3); 2509 p = lock_user(arg2, arg3, 0); 2510 ret = get_errno(read(arg1, p, arg3)); 2511 unlock_user(p, arg2, ret); 2512 break; 2513 case TARGET_NR_write: 2514 p = lock_user(arg2, arg3, 1); 2515 ret = get_errno(write(arg1, p, arg3)); 2516 unlock_user(p, arg2, 0); 2517 break; 2518 case TARGET_NR_open: 2519 p = lock_user_string(arg1); 2520 ret = get_errno(open(path(p), 2521 target_to_host_bitmask(arg2, fcntl_flags_tbl), 2522 arg3)); 2523 unlock_user(p, arg1, 0); 2524 break; 2525 #if defined(TARGET_NR_openat) && defined(__NR_openat) 2526 case TARGET_NR_openat: 2527 if (!arg2) { 2528 ret = -EFAULT; 2529 goto fail; 2530 } 2531 p = lock_user_string(arg2); 2532 if (!access_ok(VERIFY_READ, p, 1)) 2533 ret = -EFAULT; 2534 else 2535 ret = get_errno(sys_openat(arg1, 2536 path(p), 2537 target_to_host_bitmask(arg3, fcntl_flags_tbl), 2538 arg4)); 2539 if (p) 2540 unlock_user(p, arg2, 0); 2541 break; 2542 #endif 2543 case TARGET_NR_close: 2544 ret = get_errno(close(arg1)); 2545 break; 2546 case TARGET_NR_brk: 2547 ret = do_brk(arg1); 2548 break; 2549 case TARGET_NR_fork: 2550 ret = get_errno(do_fork(cpu_env, SIGCHLD, 0)); 2551 break; 2552 #ifdef TARGET_NR_waitpid 2553 case TARGET_NR_waitpid: 2554 { 2555 int status; 2556 ret = get_errno(waitpid(arg1, &status, arg3)); 2557 if (!is_error(ret) && arg2) 2558 tput32(arg2, status); 2559 } 2560 break; 2561 #endif 2562 #ifdef TARGET_NR_creat /* not on alpha */ 2563 case TARGET_NR_creat: 2564 p = lock_user_string(arg1); 2565 ret = get_errno(creat(p, arg2)); 2566 unlock_user(p, arg1, 0); 2567 break; 2568 #endif 2569 case TARGET_NR_link: 2570 { 2571 void * p2; 2572 p = lock_user_string(arg1); 2573 p2 = lock_user_string(arg2); 2574 ret = get_errno(link(p, p2)); 2575 unlock_user(p2, arg2, 0); 2576 unlock_user(p, arg1, 0); 2577 } 2578 break; 2579 case TARGET_NR_unlink: 2580 p = lock_user_string(arg1); 2581 ret = get_errno(unlink(p)); 2582 unlock_user(p, arg1, 0); 2583 break; 2584 #if defined(TARGET_NR_unlinkat) && defined(__NR_unlinkat) 2585 case TARGET_NR_unlinkat: 2586 if (!arg2) { 2587 ret = -EFAULT; 2588 goto fail; 2589 } 2590 p = lock_user_string(arg2); 2591 if (!access_ok(VERIFY_READ, p, 1)) 2592 ret = -EFAULT; 2593 else 2594 ret = get_errno(sys_unlinkat(arg1, p, arg3)); 2595 if (p) 2596 unlock_user(p, arg2, 0); 2597 break; 2598 #endif 2599 case TARGET_NR_execve: 2600 { 2601 char **argp, **envp; 2602 int argc, envc; 2603 target_ulong gp; 2604 target_ulong guest_argp; 2605 target_ulong guest_envp; 2606 target_ulong addr; 2607 char **q; 2608 2609 argc = 0; 2610 guest_argp = arg2; 2611 for (gp = guest_argp; tgetl(gp); gp++) 2612 argc++; 2613 envc = 0; 2614 guest_envp = arg3; 2615 for (gp = guest_envp; tgetl(gp); gp++) 2616 envc++; 2617 2618 argp = alloca((argc + 1) * sizeof(void *)); 2619 envp = alloca((envc + 1) * sizeof(void *)); 2620 2621 for (gp = guest_argp, q = argp; ; 2622 gp += sizeof(target_ulong), q++) { 2623 addr = tgetl(gp); 2624 if (!addr) 2625 break; 2626 *q = lock_user_string(addr); 2627 } 2628 *q = NULL; 2629 2630 for (gp = guest_envp, q = envp; ; 2631 gp += sizeof(target_ulong), q++) { 2632 addr = tgetl(gp); 2633 if (!addr) 2634 break; 2635 *q = lock_user_string(addr); 2636 } 2637 *q = NULL; 2638 2639 p = lock_user_string(arg1); 2640 ret = get_errno(execve(p, argp, envp)); 2641 unlock_user(p, arg1, 0); 2642 2643 for (gp = guest_argp, q = argp; *q; 2644 gp += sizeof(target_ulong), q++) { 2645 addr = tgetl(gp); 2646 unlock_user(*q, addr, 0); 2647 } 2648 for (gp = guest_envp, q = envp; *q; 2649 gp += sizeof(target_ulong), q++) { 2650 addr = tgetl(gp); 2651 unlock_user(*q, addr, 0); 2652 } 2653 } 2654 break; 2655 case TARGET_NR_chdir: 2656 p = lock_user_string(arg1); 2657 ret = get_errno(chdir(p)); 2658 unlock_user(p, arg1, 0); 2659 break; 2660 #ifdef TARGET_NR_time 2661 case TARGET_NR_time: 2662 { 2663 time_t host_time; 2664 ret = get_errno(time(&host_time)); 2665 if (!is_error(ret) && arg1) 2666 tputl(arg1, host_time); 2667 } 2668 break; 2669 #endif 2670 case TARGET_NR_mknod: 2671 p = lock_user_string(arg1); 2672 ret = get_errno(mknod(p, arg2, arg3)); 2673 unlock_user(p, arg1, 0); 2674 break; 2675 #if defined(TARGET_NR_mknodat) && defined(__NR_mknodat) 2676 case TARGET_NR_mknodat: 2677 if (!arg2) { 2678 ret = -EFAULT; 2679 goto fail; 2680 } 2681 p = lock_user_string(arg2); 2682 if (!access_ok(VERIFY_READ, p, 1)) 2683 ret = -EFAULT; 2684 else 2685 ret = get_errno(sys_mknodat(arg1, p, arg3, arg4)); 2686 if (p) 2687 unlock_user(p, arg2, 0); 2688 break; 2689 #endif 2690 case TARGET_NR_chmod: 2691 p = lock_user_string(arg1); 2692 ret = get_errno(chmod(p, arg2)); 2693 unlock_user(p, arg1, 0); 2694 break; 2695 #ifdef TARGET_NR_break 2696 case TARGET_NR_break: 2697 goto unimplemented; 2698 #endif 2699 #ifdef TARGET_NR_oldstat 2700 case TARGET_NR_oldstat: 2701 goto unimplemented; 2702 #endif 2703 case TARGET_NR_lseek: 2704 ret = get_errno(lseek(arg1, arg2, arg3)); 2705 break; 2706 #ifdef TARGET_NR_getxpid 2707 case TARGET_NR_getxpid: 2708 #else 2709 case TARGET_NR_getpid: 2710 #endif 2711 ret = get_errno(getpid()); 2712 break; 2713 case TARGET_NR_mount: 2714 { 2715 /* need to look at the data field */ 2716 void *p2, *p3; 2717 p = lock_user_string(arg1); 2718 p2 = lock_user_string(arg2); 2719 p3 = lock_user_string(arg3); 2720 ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, (const void *)arg5)); 2721 unlock_user(p, arg1, 0); 2722 unlock_user(p2, arg2, 0); 2723 unlock_user(p3, arg3, 0); 2724 break; 2725 } 2726 #ifdef TARGET_NR_umount 2727 case TARGET_NR_umount: 2728 p = lock_user_string(arg1); 2729 ret = get_errno(umount(p)); 2730 unlock_user(p, arg1, 0); 2731 break; 2732 #endif 2733 #ifdef TARGET_NR_stime /* not on alpha */ 2734 case TARGET_NR_stime: 2735 { 2736 time_t host_time; 2737 host_time = tgetl(arg1); 2738 ret = get_errno(stime(&host_time)); 2739 } 2740 break; 2741 #endif 2742 case TARGET_NR_ptrace: 2743 goto unimplemented; 2744 #ifdef TARGET_NR_alarm /* not on alpha */ 2745 case TARGET_NR_alarm: 2746 ret = alarm(arg1); 2747 break; 2748 #endif 2749 #ifdef TARGET_NR_oldfstat 2750 case TARGET_NR_oldfstat: 2751 goto unimplemented; 2752 #endif 2753 #ifdef TARGET_NR_pause /* not on alpha */ 2754 case TARGET_NR_pause: 2755 ret = get_errno(pause()); 2756 break; 2757 #endif 2758 #ifdef TARGET_NR_utime 2759 case TARGET_NR_utime: 2760 { 2761 struct utimbuf tbuf, *host_tbuf; 2762 struct target_utimbuf *target_tbuf; 2763 if (arg2) { 2764 lock_user_struct(target_tbuf, arg2, 1); 2765 tbuf.actime = tswapl(target_tbuf->actime); 2766 tbuf.modtime = tswapl(target_tbuf->modtime); 2767 unlock_user_struct(target_tbuf, arg2, 0); 2768 host_tbuf = &tbuf; 2769 } else { 2770 host_tbuf = NULL; 2771 } 2772 p = lock_user_string(arg1); 2773 ret = get_errno(utime(p, host_tbuf)); 2774 unlock_user(p, arg1, 0); 2775 } 2776 break; 2777 #endif 2778 case TARGET_NR_utimes: 2779 { 2780 struct timeval *tvp, tv[2]; 2781 if (arg2) { 2782 target_to_host_timeval(&tv[0], arg2); 2783 target_to_host_timeval(&tv[1], 2784 arg2 + sizeof (struct target_timeval)); 2785 tvp = tv; 2786 } else { 2787 tvp = NULL; 2788 } 2789 p = lock_user_string(arg1); 2790 ret = get_errno(utimes(p, tvp)); 2791 unlock_user(p, arg1, 0); 2792 } 2793 break; 2794 #ifdef TARGET_NR_stty 2795 case TARGET_NR_stty: 2796 goto unimplemented; 2797 #endif 2798 #ifdef TARGET_NR_gtty 2799 case TARGET_NR_gtty: 2800 goto unimplemented; 2801 #endif 2802 case TARGET_NR_access: 2803 p = lock_user_string(arg1); 2804 ret = get_errno(access(p, arg2)); 2805 unlock_user(p, arg1, 0); 2806 break; 2807 #ifdef TARGET_NR_nice /* not on alpha */ 2808 case TARGET_NR_nice: 2809 ret = get_errno(nice(arg1)); 2810 break; 2811 #endif 2812 #ifdef TARGET_NR_ftime 2813 case TARGET_NR_ftime: 2814 goto unimplemented; 2815 #endif 2816 case TARGET_NR_sync: 2817 sync(); 2818 ret = 0; 2819 break; 2820 case TARGET_NR_kill: 2821 ret = get_errno(kill(arg1, arg2)); 2822 break; 2823 case TARGET_NR_rename: 2824 { 2825 void *p2; 2826 p = lock_user_string(arg1); 2827 p2 = lock_user_string(arg2); 2828 ret = get_errno(rename(p, p2)); 2829 unlock_user(p2, arg2, 0); 2830 unlock_user(p, arg1, 0); 2831 } 2832 break; 2833 case TARGET_NR_mkdir: 2834 p = lock_user_string(arg1); 2835 ret = get_errno(mkdir(p, arg2)); 2836 unlock_user(p, arg1, 0); 2837 break; 2838 #if defined(TARGET_NR_mkdirat) && defined(__NR_mkdirat) 2839 case TARGET_NR_mkdirat: 2840 if (!arg2) { 2841 ret = -EFAULT; 2842 goto fail; 2843 } 2844 p = lock_user_string(arg2); 2845 if (!access_ok(VERIFY_READ, p, 1)) 2846 ret = -EFAULT; 2847 else 2848 ret = get_errno(sys_mkdirat(arg1, p, arg3)); 2849 if (p) 2850 unlock_user(p, arg2, 0); 2851 break; 2852 #endif 2853 case TARGET_NR_rmdir: 2854 p = lock_user_string(arg1); 2855 ret = get_errno(rmdir(p)); 2856 unlock_user(p, arg1, 0); 2857 break; 2858 case TARGET_NR_dup: 2859 ret = get_errno(dup(arg1)); 2860 break; 2861 case TARGET_NR_pipe: 2862 { 2863 int host_pipe[2]; 2864 ret = get_errno(pipe(host_pipe)); 2865 if (!is_error(ret)) { 2866 #if defined(TARGET_MIPS) 2867 CPUMIPSState *env = (CPUMIPSState*)cpu_env; 2868 env->gpr[3][env->current_tc] = host_pipe[1]; 2869 ret = host_pipe[0]; 2870 #else 2871 tput32(arg1, host_pipe[0]); 2872 tput32(arg1 + 4, host_pipe[1]); 2873 #endif 2874 } 2875 } 2876 break; 2877 case TARGET_NR_times: 2878 { 2879 struct target_tms *tmsp; 2880 struct tms tms; 2881 ret = get_errno(times(&tms)); 2882 if (arg1) { 2883 tmsp = lock_user(arg1, sizeof(struct target_tms), 0); 2884 tmsp->tms_utime = tswapl(host_to_target_clock_t(tms.tms_utime)); 2885 tmsp->tms_stime = tswapl(host_to_target_clock_t(tms.tms_stime)); 2886 tmsp->tms_cutime = tswapl(host_to_target_clock_t(tms.tms_cutime)); 2887 tmsp->tms_cstime = tswapl(host_to_target_clock_t(tms.tms_cstime)); 2888 } 2889 if (!is_error(ret)) 2890 ret = host_to_target_clock_t(ret); 2891 } 2892 break; 2893 #ifdef TARGET_NR_prof 2894 case TARGET_NR_prof: 2895 goto unimplemented; 2896 #endif 2897 #ifdef TARGET_NR_signal 2898 case TARGET_NR_signal: 2899 goto unimplemented; 2900 #endif 2901 case TARGET_NR_acct: 2902 p = lock_user_string(arg1); 2903 ret = get_errno(acct(path(p))); 2904 unlock_user(p, arg1, 0); 2905 break; 2906 #ifdef TARGET_NR_umount2 /* not on alpha */ 2907 case TARGET_NR_umount2: 2908 p = lock_user_string(arg1); 2909 ret = get_errno(umount2(p, arg2)); 2910 unlock_user(p, arg1, 0); 2911 break; 2912 #endif 2913 #ifdef TARGET_NR_lock 2914 case TARGET_NR_lock: 2915 goto unimplemented; 2916 #endif 2917 case TARGET_NR_ioctl: 2918 ret = do_ioctl(arg1, arg2, arg3); 2919 break; 2920 case TARGET_NR_fcntl: 2921 ret = get_errno(do_fcntl(arg1, arg2, arg3)); 2922 break; 2923 #ifdef TARGET_NR_mpx 2924 case TARGET_NR_mpx: 2925 goto unimplemented; 2926 #endif 2927 case TARGET_NR_setpgid: 2928 ret = get_errno(setpgid(arg1, arg2)); 2929 break; 2930 #ifdef TARGET_NR_ulimit 2931 case TARGET_NR_ulimit: 2932 goto unimplemented; 2933 #endif 2934 #ifdef TARGET_NR_oldolduname 2935 case TARGET_NR_oldolduname: 2936 goto unimplemented; 2937 #endif 2938 case TARGET_NR_umask: 2939 ret = get_errno(umask(arg1)); 2940 break; 2941 case TARGET_NR_chroot: 2942 p = lock_user_string(arg1); 2943 ret = get_errno(chroot(p)); 2944 unlock_user(p, arg1, 0); 2945 break; 2946 case TARGET_NR_ustat: 2947 goto unimplemented; 2948 case TARGET_NR_dup2: 2949 ret = get_errno(dup2(arg1, arg2)); 2950 break; 2951 #ifdef TARGET_NR_getppid /* not on alpha */ 2952 case TARGET_NR_getppid: 2953 ret = get_errno(getppid()); 2954 break; 2955 #endif 2956 case TARGET_NR_getpgrp: 2957 ret = get_errno(getpgrp()); 2958 break; 2959 case TARGET_NR_setsid: 2960 ret = get_errno(setsid()); 2961 break; 2962 #ifdef TARGET_NR_sigaction 2963 case TARGET_NR_sigaction: 2964 { 2965 #if !defined(TARGET_MIPS) 2966 struct target_old_sigaction *old_act; 2967 struct target_sigaction act, oact, *pact; 2968 if (arg2) { 2969 lock_user_struct(old_act, arg2, 1); 2970 act._sa_handler = old_act->_sa_handler; 2971 target_siginitset(&act.sa_mask, old_act->sa_mask); 2972 act.sa_flags = old_act->sa_flags; 2973 act.sa_restorer = old_act->sa_restorer; 2974 unlock_user_struct(old_act, arg2, 0); 2975 pact = &act; 2976 } else { 2977 pact = NULL; 2978 } 2979 ret = get_errno(do_sigaction(arg1, pact, &oact)); 2980 if (!is_error(ret) && arg3) { 2981 lock_user_struct(old_act, arg3, 0); 2982 old_act->_sa_handler = oact._sa_handler; 2983 old_act->sa_mask = oact.sa_mask.sig[0]; 2984 old_act->sa_flags = oact.sa_flags; 2985 old_act->sa_restorer = oact.sa_restorer; 2986 unlock_user_struct(old_act, arg3, 1); 2987 } 2988 #else 2989 struct target_sigaction act, oact, *pact, *old_act; 2990 2991 if (arg2) { 2992 lock_user_struct(old_act, arg2, 1); 2993 act._sa_handler = old_act->_sa_handler; 2994 target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]); 2995 act.sa_flags = old_act->sa_flags; 2996 unlock_user_struct(old_act, arg2, 0); 2997 pact = &act; 2998 } else { 2999 pact = NULL; 3000 } 3001 3002 ret = get_errno(do_sigaction(arg1, pact, &oact)); 3003 3004 if (!is_error(ret) && arg3) { 3005 lock_user_struct(old_act, arg3, 0); 3006 old_act->_sa_handler = oact._sa_handler; 3007 old_act->sa_flags = oact.sa_flags; 3008 old_act->sa_mask.sig[0] = oact.sa_mask.sig[0]; 3009 old_act->sa_mask.sig[1] = 0; 3010 old_act->sa_mask.sig[2] = 0; 3011 old_act->sa_mask.sig[3] = 0; 3012 unlock_user_struct(old_act, arg3, 1); 3013 } 3014 #endif 3015 } 3016 break; 3017 #endif 3018 case TARGET_NR_rt_sigaction: 3019 { 3020 struct target_sigaction *act; 3021 struct target_sigaction *oact; 3022 3023 if (arg2) 3024 lock_user_struct(act, arg2, 1); 3025 else 3026 act = NULL; 3027 if (arg3) 3028 lock_user_struct(oact, arg3, 0); 3029 else 3030 oact = NULL; 3031 ret = get_errno(do_sigaction(arg1, act, oact)); 3032 if (arg2) 3033 unlock_user_struct(act, arg2, 0); 3034 if (arg3) 3035 unlock_user_struct(oact, arg3, 1); 3036 } 3037 break; 3038 #ifdef TARGET_NR_sgetmask /* not on alpha */ 3039 case TARGET_NR_sgetmask: 3040 { 3041 sigset_t cur_set; 3042 target_ulong target_set; 3043 sigprocmask(0, NULL, &cur_set); 3044 host_to_target_old_sigset(&target_set, &cur_set); 3045 ret = target_set; 3046 } 3047 break; 3048 #endif 3049 #ifdef TARGET_NR_ssetmask /* not on alpha */ 3050 case TARGET_NR_ssetmask: 3051 { 3052 sigset_t set, oset, cur_set; 3053 target_ulong target_set = arg1; 3054 sigprocmask(0, NULL, &cur_set); 3055 target_to_host_old_sigset(&set, &target_set); 3056 sigorset(&set, &set, &cur_set); 3057 sigprocmask(SIG_SETMASK, &set, &oset); 3058 host_to_target_old_sigset(&target_set, &oset); 3059 ret = target_set; 3060 } 3061 break; 3062 #endif 3063 #ifdef TARGET_NR_sigprocmask 3064 case TARGET_NR_sigprocmask: 3065 { 3066 int how = arg1; 3067 sigset_t set, oldset, *set_ptr; 3068 3069 if (arg2) { 3070 switch(how) { 3071 case TARGET_SIG_BLOCK: 3072 how = SIG_BLOCK; 3073 break; 3074 case TARGET_SIG_UNBLOCK: 3075 how = SIG_UNBLOCK; 3076 break; 3077 case TARGET_SIG_SETMASK: 3078 how = SIG_SETMASK; 3079 break; 3080 default: 3081 ret = -EINVAL; 3082 goto fail; 3083 } 3084 p = lock_user(arg2, sizeof(target_sigset_t), 1); 3085 target_to_host_old_sigset(&set, p); 3086 unlock_user(p, arg2, 0); 3087 set_ptr = &set; 3088 } else { 3089 how = 0; 3090 set_ptr = NULL; 3091 } 3092 ret = get_errno(sigprocmask(arg1, set_ptr, &oldset)); 3093 if (!is_error(ret) && arg3) { 3094 p = lock_user(arg3, sizeof(target_sigset_t), 0); 3095 host_to_target_old_sigset(p, &oldset); 3096 unlock_user(p, arg3, sizeof(target_sigset_t)); 3097 } 3098 } 3099 break; 3100 #endif 3101 case TARGET_NR_rt_sigprocmask: 3102 { 3103 int how = arg1; 3104 sigset_t set, oldset, *set_ptr; 3105 3106 if (arg2) { 3107 switch(how) { 3108 case TARGET_SIG_BLOCK: 3109 how = SIG_BLOCK; 3110 break; 3111 case TARGET_SIG_UNBLOCK: 3112 how = SIG_UNBLOCK; 3113 break; 3114 case TARGET_SIG_SETMASK: 3115 how = SIG_SETMASK; 3116 break; 3117 default: 3118 ret = -EINVAL; 3119 goto fail; 3120 } 3121 p = lock_user(arg2, sizeof(target_sigset_t), 1); 3122 target_to_host_sigset(&set, p); 3123 unlock_user(p, arg2, 0); 3124 set_ptr = &set; 3125 } else { 3126 how = 0; 3127 set_ptr = NULL; 3128 } 3129 ret = get_errno(sigprocmask(how, set_ptr, &oldset)); 3130 if (!is_error(ret) && arg3) { 3131 p = lock_user(arg3, sizeof(target_sigset_t), 0); 3132 host_to_target_sigset(p, &oldset); 3133 unlock_user(p, arg3, sizeof(target_sigset_t)); 3134 } 3135 } 3136 break; 3137 #ifdef TARGET_NR_sigpending 3138 case TARGET_NR_sigpending: 3139 { 3140 sigset_t set; 3141 ret = get_errno(sigpending(&set)); 3142 if (!is_error(ret)) { 3143 p = lock_user(arg1, sizeof(target_sigset_t), 0); 3144 host_to_target_old_sigset(p, &set); 3145 unlock_user(p, arg1, sizeof(target_sigset_t)); 3146 } 3147 } 3148 break; 3149 #endif 3150 case TARGET_NR_rt_sigpending: 3151 { 3152 sigset_t set; 3153 ret = get_errno(sigpending(&set)); 3154 if (!is_error(ret)) { 3155 p = lock_user(arg1, sizeof(target_sigset_t), 0); 3156 host_to_target_sigset(p, &set); 3157 unlock_user(p, arg1, sizeof(target_sigset_t)); 3158 } 3159 } 3160 break; 3161 #ifdef TARGET_NR_sigsuspend 3162 case TARGET_NR_sigsuspend: 3163 { 3164 sigset_t set; 3165 p = lock_user(arg1, sizeof(target_sigset_t), 1); 3166 target_to_host_old_sigset(&set, p); 3167 unlock_user(p, arg1, 0); 3168 ret = get_errno(sigsuspend(&set)); 3169 } 3170 break; 3171 #endif 3172 case TARGET_NR_rt_sigsuspend: 3173 { 3174 sigset_t set; 3175 p = lock_user(arg1, sizeof(target_sigset_t), 1); 3176 target_to_host_sigset(&set, p); 3177 unlock_user(p, arg1, 0); 3178 ret = get_errno(sigsuspend(&set)); 3179 } 3180 break; 3181 case TARGET_NR_rt_sigtimedwait: 3182 { 3183 sigset_t set; 3184 struct timespec uts, *puts; 3185 siginfo_t uinfo; 3186 3187 p = lock_user(arg1, sizeof(target_sigset_t), 1); 3188 target_to_host_sigset(&set, p); 3189 unlock_user(p, arg1, 0); 3190 if (arg3) { 3191 puts = &uts; 3192 target_to_host_timespec(puts, arg3); 3193 } else { 3194 puts = NULL; 3195 } 3196 ret = get_errno(sigtimedwait(&set, &uinfo, puts)); 3197 if (!is_error(ret) && arg2) { 3198 p = lock_user(arg2, sizeof(target_sigset_t), 0); 3199 host_to_target_siginfo(p, &uinfo); 3200 unlock_user(p, arg2, sizeof(target_sigset_t)); 3201 } 3202 } 3203 break; 3204 case TARGET_NR_rt_sigqueueinfo: 3205 { 3206 siginfo_t uinfo; 3207 p = lock_user(arg3, sizeof(target_sigset_t), 1); 3208 target_to_host_siginfo(&uinfo, p); 3209 unlock_user(p, arg1, 0); 3210 ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo)); 3211 } 3212 break; 3213 #ifdef TARGET_NR_sigreturn 3214 case TARGET_NR_sigreturn: 3215 /* NOTE: ret is eax, so not transcoding must be done */ 3216 ret = do_sigreturn(cpu_env); 3217 break; 3218 #endif 3219 case TARGET_NR_rt_sigreturn: 3220 /* NOTE: ret is eax, so not transcoding must be done */ 3221 ret = do_rt_sigreturn(cpu_env); 3222 break; 3223 case TARGET_NR_sethostname: 3224 p = lock_user_string(arg1); 3225 ret = get_errno(sethostname(p, arg2)); 3226 unlock_user(p, arg1, 0); 3227 break; 3228 case TARGET_NR_setrlimit: 3229 { 3230 /* XXX: convert resource ? */ 3231 int resource = arg1; 3232 struct target_rlimit *target_rlim; 3233 struct rlimit rlim; 3234 lock_user_struct(target_rlim, arg2, 1); 3235 rlim.rlim_cur = tswapl(target_rlim->rlim_cur); 3236 rlim.rlim_max = tswapl(target_rlim->rlim_max); 3237 unlock_user_struct(target_rlim, arg2, 0); 3238 ret = get_errno(setrlimit(resource, &rlim)); 3239 } 3240 break; 3241 case TARGET_NR_getrlimit: 3242 { 3243 /* XXX: convert resource ? */ 3244 int resource = arg1; 3245 struct target_rlimit *target_rlim; 3246 struct rlimit rlim; 3247 3248 ret = get_errno(getrlimit(resource, &rlim)); 3249 if (!is_error(ret)) { 3250 lock_user_struct(target_rlim, arg2, 0); 3251 rlim.rlim_cur = tswapl(target_rlim->rlim_cur); 3252 rlim.rlim_max = tswapl(target_rlim->rlim_max); 3253 unlock_user_struct(target_rlim, arg2, 1); 3254 } 3255 } 3256 break; 3257 case TARGET_NR_getrusage: 3258 { 3259 struct rusage rusage; 3260 ret = get_errno(getrusage(arg1, &rusage)); 3261 if (!is_error(ret)) { 3262 host_to_target_rusage(arg2, &rusage); 3263 } 3264 } 3265 break; 3266 case TARGET_NR_gettimeofday: 3267 { 3268 struct timeval tv; 3269 ret = get_errno(gettimeofday(&tv, NULL)); 3270 if (!is_error(ret)) { 3271 host_to_target_timeval(arg1, &tv); 3272 } 3273 } 3274 break; 3275 case TARGET_NR_settimeofday: 3276 { 3277 struct timeval tv; 3278 target_to_host_timeval(&tv, arg1); 3279 ret = get_errno(settimeofday(&tv, NULL)); 3280 } 3281 break; 3282 #ifdef TARGET_NR_select 3283 case TARGET_NR_select: 3284 { 3285 struct target_sel_arg_struct *sel; 3286 target_ulong inp, outp, exp, tvp; 3287 long nsel; 3288 3289 lock_user_struct(sel, arg1, 1); 3290 nsel = tswapl(sel->n); 3291 inp = tswapl(sel->inp); 3292 outp = tswapl(sel->outp); 3293 exp = tswapl(sel->exp); 3294 tvp = tswapl(sel->tvp); 3295 unlock_user_struct(sel, arg1, 0); 3296 ret = do_select(nsel, inp, outp, exp, tvp); 3297 } 3298 break; 3299 #endif 3300 case TARGET_NR_symlink: 3301 { 3302 void *p2; 3303 p = lock_user_string(arg1); 3304 p2 = lock_user_string(arg2); 3305 ret = get_errno(symlink(p, p2)); 3306 unlock_user(p2, arg2, 0); 3307 unlock_user(p, arg1, 0); 3308 } 3309 break; 3310 #ifdef TARGET_NR_oldlstat 3311 case TARGET_NR_oldlstat: 3312 goto unimplemented; 3313 #endif 3314 case TARGET_NR_readlink: 3315 { 3316 void *p2; 3317 p = lock_user_string(arg1); 3318 p2 = lock_user(arg2, arg3, 0); 3319 ret = get_errno(readlink(path(p), p2, arg3)); 3320 unlock_user(p2, arg2, ret); 3321 unlock_user(p, arg1, 0); 3322 } 3323 break; 3324 #ifdef TARGET_NR_uselib 3325 case TARGET_NR_uselib: 3326 goto unimplemented; 3327 #endif 3328 #ifdef TARGET_NR_swapon 3329 case TARGET_NR_swapon: 3330 p = lock_user_string(arg1); 3331 ret = get_errno(swapon(p, arg2)); 3332 unlock_user(p, arg1, 0); 3333 break; 3334 #endif 3335 case TARGET_NR_reboot: 3336 goto unimplemented; 3337 #ifdef TARGET_NR_readdir 3338 case TARGET_NR_readdir: 3339 goto unimplemented; 3340 #endif 3341 #ifdef TARGET_NR_mmap 3342 case TARGET_NR_mmap: 3343 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_M68K) 3344 { 3345 target_ulong *v; 3346 target_ulong v1, v2, v3, v4, v5, v6; 3347 v = lock_user(arg1, 6 * sizeof(target_ulong), 1); 3348 v1 = tswapl(v[0]); 3349 v2 = tswapl(v[1]); 3350 v3 = tswapl(v[2]); 3351 v4 = tswapl(v[3]); 3352 v5 = tswapl(v[4]); 3353 v6 = tswapl(v[5]); 3354 unlock_user(v, arg1, 0); 3355 ret = get_errno(target_mmap(v1, v2, v3, 3356 target_to_host_bitmask(v4, mmap_flags_tbl), 3357 v5, v6)); 3358 } 3359 #else 3360 ret = get_errno(target_mmap(arg1, arg2, arg3, 3361 target_to_host_bitmask(arg4, mmap_flags_tbl), 3362 arg5, 3363 arg6)); 3364 #endif 3365 break; 3366 #endif 3367 #ifdef TARGET_NR_mmap2 3368 case TARGET_NR_mmap2: 3369 #if defined(TARGET_SPARC) || defined(TARGET_MIPS) 3370 #define MMAP_SHIFT 12 3371 #else 3372 #define MMAP_SHIFT TARGET_PAGE_BITS 3373 #endif 3374 ret = get_errno(target_mmap(arg1, arg2, arg3, 3375 target_to_host_bitmask(arg4, mmap_flags_tbl), 3376 arg5, 3377 arg6 << MMAP_SHIFT)); 3378 break; 3379 #endif 3380 case TARGET_NR_munmap: 3381 ret = get_errno(target_munmap(arg1, arg2)); 3382 break; 3383 case TARGET_NR_mprotect: 3384 ret = get_errno(target_mprotect(arg1, arg2, arg3)); 3385 break; 3386 #ifdef TARGET_NR_mremap 3387 case TARGET_NR_mremap: 3388 ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5)); 3389 break; 3390 #endif 3391 /* ??? msync/mlock/munlock are broken for softmmu. */ 3392 #ifdef TARGET_NR_msync 3393 case TARGET_NR_msync: 3394 ret = get_errno(msync(g2h(arg1), arg2, arg3)); 3395 break; 3396 #endif 3397 #ifdef TARGET_NR_mlock 3398 case TARGET_NR_mlock: 3399 ret = get_errno(mlock(g2h(arg1), arg2)); 3400 break; 3401 #endif 3402 #ifdef TARGET_NR_munlock 3403 case TARGET_NR_munlock: 3404 ret = get_errno(munlock(g2h(arg1), arg2)); 3405 break; 3406 #endif 3407 #ifdef TARGET_NR_mlockall 3408 case TARGET_NR_mlockall: 3409 ret = get_errno(mlockall(arg1)); 3410 break; 3411 #endif 3412 #ifdef TARGET_NR_munlockall 3413 case TARGET_NR_munlockall: 3414 ret = get_errno(munlockall()); 3415 break; 3416 #endif 3417 case TARGET_NR_truncate: 3418 p = lock_user_string(arg1); 3419 ret = get_errno(truncate(p, arg2)); 3420 unlock_user(p, arg1, 0); 3421 break; 3422 case TARGET_NR_ftruncate: 3423 ret = get_errno(ftruncate(arg1, arg2)); 3424 break; 3425 case TARGET_NR_fchmod: 3426 ret = get_errno(fchmod(arg1, arg2)); 3427 break; 3428 case TARGET_NR_getpriority: 3429 ret = get_errno(getpriority(arg1, arg2)); 3430 break; 3431 case TARGET_NR_setpriority: 3432 ret = get_errno(setpriority(arg1, arg2, arg3)); 3433 break; 3434 #ifdef TARGET_NR_profil 3435 case TARGET_NR_profil: 3436 goto unimplemented; 3437 #endif 3438 case TARGET_NR_statfs: 3439 p = lock_user_string(arg1); 3440 ret = get_errno(statfs(path(p), &stfs)); 3441 unlock_user(p, arg1, 0); 3442 convert_statfs: 3443 if (!is_error(ret)) { 3444 struct target_statfs *target_stfs; 3445 3446 lock_user_struct(target_stfs, arg2, 0); 3447 /* ??? put_user is probably wrong. */ 3448 put_user(stfs.f_type, &target_stfs->f_type); 3449 put_user(stfs.f_bsize, &target_stfs->f_bsize); 3450 put_user(stfs.f_blocks, &target_stfs->f_blocks); 3451 put_user(stfs.f_bfree, &target_stfs->f_bfree); 3452 put_user(stfs.f_bavail, &target_stfs->f_bavail); 3453 put_user(stfs.f_files, &target_stfs->f_files); 3454 put_user(stfs.f_ffree, &target_stfs->f_ffree); 3455 put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]); 3456 put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]); 3457 put_user(stfs.f_namelen, &target_stfs->f_namelen); 3458 unlock_user_struct(target_stfs, arg2, 1); 3459 } 3460 break; 3461 case TARGET_NR_fstatfs: 3462 ret = get_errno(fstatfs(arg1, &stfs)); 3463 goto convert_statfs; 3464 #ifdef TARGET_NR_statfs64 3465 case TARGET_NR_statfs64: 3466 p = lock_user_string(arg1); 3467 ret = get_errno(statfs(path(p), &stfs)); 3468 unlock_user(p, arg1, 0); 3469 convert_statfs64: 3470 if (!is_error(ret)) { 3471 struct target_statfs64 *target_stfs; 3472 3473 lock_user_struct(target_stfs, arg3, 0); 3474 /* ??? put_user is probably wrong. */ 3475 put_user(stfs.f_type, &target_stfs->f_type); 3476 put_user(stfs.f_bsize, &target_stfs->f_bsize); 3477 put_user(stfs.f_blocks, &target_stfs->f_blocks); 3478 put_user(stfs.f_bfree, &target_stfs->f_bfree); 3479 put_user(stfs.f_bavail, &target_stfs->f_bavail); 3480 put_user(stfs.f_files, &target_stfs->f_files); 3481 put_user(stfs.f_ffree, &target_stfs->f_ffree); 3482 put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]); 3483 put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]); 3484 put_user(stfs.f_namelen, &target_stfs->f_namelen); 3485 unlock_user_struct(target_stfs, arg3, 0); 3486 } 3487 break; 3488 case TARGET_NR_fstatfs64: 3489 ret = get_errno(fstatfs(arg1, &stfs)); 3490 goto convert_statfs64; 3491 #endif 3492 #ifdef TARGET_NR_ioperm 3493 case TARGET_NR_ioperm: 3494 goto unimplemented; 3495 #endif 3496 #ifdef TARGET_NR_socketcall 3497 case TARGET_NR_socketcall: 3498 ret = do_socketcall(arg1, arg2); 3499 break; 3500 #endif 3501 #ifdef TARGET_NR_accept 3502 case TARGET_NR_accept: 3503 ret = do_accept(arg1, arg2, arg3); 3504 break; 3505 #endif 3506 #ifdef TARGET_NR_bind 3507 case TARGET_NR_bind: 3508 ret = do_bind(arg1, arg2, arg3); 3509 break; 3510 #endif 3511 #ifdef TARGET_NR_connect 3512 case TARGET_NR_connect: 3513 ret = do_connect(arg1, arg2, arg3); 3514 break; 3515 #endif 3516 #ifdef TARGET_NR_getpeername 3517 case TARGET_NR_getpeername: 3518 ret = do_getpeername(arg1, arg2, arg3); 3519 break; 3520 #endif 3521 #ifdef TARGET_NR_getsockname 3522 case TARGET_NR_getsockname: 3523 ret = do_getsockname(arg1, arg2, arg3); 3524 break; 3525 #endif 3526 #ifdef TARGET_NR_getsockopt 3527 case TARGET_NR_getsockopt: 3528 ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5); 3529 break; 3530 #endif 3531 #ifdef TARGET_NR_listen 3532 case TARGET_NR_listen: 3533 ret = get_errno(listen(arg1, arg2)); 3534 break; 3535 #endif 3536 #ifdef TARGET_NR_recv 3537 case TARGET_NR_recv: 3538 ret = do_recvfrom(arg1, arg2, arg3, arg4, 0, 0); 3539 break; 3540 #endif 3541 #ifdef TARGET_NR_recvfrom 3542 case TARGET_NR_recvfrom: 3543 ret = do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6); 3544 break; 3545 #endif 3546 #ifdef TARGET_NR_recvmsg 3547 case TARGET_NR_recvmsg: 3548 ret = do_sendrecvmsg(arg1, arg2, arg3, 0); 3549 break; 3550 #endif 3551 #ifdef TARGET_NR_send 3552 case TARGET_NR_send: 3553 ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0); 3554 break; 3555 #endif 3556 #ifdef TARGET_NR_sendmsg 3557 case TARGET_NR_sendmsg: 3558 ret = do_sendrecvmsg(arg1, arg2, arg3, 1); 3559 break; 3560 #endif 3561 #ifdef TARGET_NR_sendto 3562 case TARGET_NR_sendto: 3563 ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6); 3564 break; 3565 #endif 3566 #ifdef TARGET_NR_shutdown 3567 case TARGET_NR_shutdown: 3568 ret = get_errno(shutdown(arg1, arg2)); 3569 break; 3570 #endif 3571 #ifdef TARGET_NR_socket 3572 case TARGET_NR_socket: 3573 ret = do_socket(arg1, arg2, arg3); 3574 break; 3575 #endif 3576 #ifdef TARGET_NR_socketpair 3577 case TARGET_NR_socketpair: 3578 ret = do_socketpair(arg1, arg2, arg3, arg4); 3579 break; 3580 #endif 3581 #ifdef TARGET_NR_setsockopt 3582 case TARGET_NR_setsockopt: 3583 ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5); 3584 break; 3585 #endif 3586 3587 case TARGET_NR_syslog: 3588 p = lock_user_string(arg2); 3589 ret = get_errno(sys_syslog((int)arg1, p, (int)arg3)); 3590 unlock_user(p, arg2, 0); 3591 break; 3592 3593 case TARGET_NR_setitimer: 3594 { 3595 struct itimerval value, ovalue, *pvalue; 3596 3597 if (arg2) { 3598 pvalue = &value; 3599 target_to_host_timeval(&pvalue->it_interval, 3600 arg2); 3601 target_to_host_timeval(&pvalue->it_value, 3602 arg2 + sizeof(struct target_timeval)); 3603 } else { 3604 pvalue = NULL; 3605 } 3606 ret = get_errno(setitimer(arg1, pvalue, &ovalue)); 3607 if (!is_error(ret) && arg3) { 3608 host_to_target_timeval(arg3, 3609 &ovalue.it_interval); 3610 host_to_target_timeval(arg3 + sizeof(struct target_timeval), 3611 &ovalue.it_value); 3612 } 3613 } 3614 break; 3615 case TARGET_NR_getitimer: 3616 { 3617 struct itimerval value; 3618 3619 ret = get_errno(getitimer(arg1, &value)); 3620 if (!is_error(ret) && arg2) { 3621 host_to_target_timeval(arg2, 3622 &value.it_interval); 3623 host_to_target_timeval(arg2 + sizeof(struct target_timeval), 3624 &value.it_value); 3625 } 3626 } 3627 break; 3628 case TARGET_NR_stat: 3629 p = lock_user_string(arg1); 3630 ret = get_errno(stat(path(p), &st)); 3631 unlock_user(p, arg1, 0); 3632 goto do_stat; 3633 case TARGET_NR_lstat: 3634 p = lock_user_string(arg1); 3635 ret = get_errno(lstat(path(p), &st)); 3636 unlock_user(p, arg1, 0); 3637 goto do_stat; 3638 case TARGET_NR_fstat: 3639 { 3640 ret = get_errno(fstat(arg1, &st)); 3641 do_stat: 3642 if (!is_error(ret)) { 3643 struct target_stat *target_st; 3644 3645 lock_user_struct(target_st, arg2, 0); 3646 #if defined(TARGET_MIPS) || defined(TARGET_SPARC64) 3647 target_st->st_dev = tswap32(st.st_dev); 3648 #else 3649 target_st->st_dev = tswap16(st.st_dev); 3650 #endif 3651 target_st->st_ino = tswapl(st.st_ino); 3652 #if defined(TARGET_PPC) || defined(TARGET_MIPS) 3653 target_st->st_mode = tswapl(st.st_mode); /* XXX: check this */ 3654 target_st->st_uid = tswap32(st.st_uid); 3655 target_st->st_gid = tswap32(st.st_gid); 3656 #elif defined(TARGET_SPARC64) 3657 target_st->st_mode = tswap32(st.st_mode); 3658 target_st->st_uid = tswap32(st.st_uid); 3659 target_st->st_gid = tswap32(st.st_gid); 3660 #else 3661 target_st->st_mode = tswap16(st.st_mode); 3662 target_st->st_uid = tswap16(st.st_uid); 3663 target_st->st_gid = tswap16(st.st_gid); 3664 #endif 3665 #if defined(TARGET_MIPS) 3666 /* If this is the same on PPC, then just merge w/ the above ifdef */ 3667 target_st->st_nlink = tswapl(st.st_nlink); 3668 target_st->st_rdev = tswapl(st.st_rdev); 3669 #elif defined(TARGET_SPARC64) 3670 target_st->st_nlink = tswap32(st.st_nlink); 3671 target_st->st_rdev = tswap32(st.st_rdev); 3672 #else 3673 target_st->st_nlink = tswap16(st.st_nlink); 3674 target_st->st_rdev = tswap16(st.st_rdev); 3675 #endif 3676 target_st->st_size = tswapl(st.st_size); 3677 target_st->st_blksize = tswapl(st.st_blksize); 3678 target_st->st_blocks = tswapl(st.st_blocks); 3679 target_st->target_st_atime = tswapl(st.st_atime); 3680 target_st->target_st_mtime = tswapl(st.st_mtime); 3681 target_st->target_st_ctime = tswapl(st.st_ctime); 3682 unlock_user_struct(target_st, arg2, 1); 3683 } 3684 } 3685 break; 3686 #ifdef TARGET_NR_olduname 3687 case TARGET_NR_olduname: 3688 goto unimplemented; 3689 #endif 3690 #ifdef TARGET_NR_iopl 3691 case TARGET_NR_iopl: 3692 goto unimplemented; 3693 #endif 3694 case TARGET_NR_vhangup: 3695 ret = get_errno(vhangup()); 3696 break; 3697 #ifdef TARGET_NR_idle 3698 case TARGET_NR_idle: 3699 goto unimplemented; 3700 #endif 3701 #ifdef TARGET_NR_syscall 3702 case TARGET_NR_syscall: 3703 ret = do_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,0); 3704 break; 3705 #endif 3706 case TARGET_NR_wait4: 3707 { 3708 int status; 3709 target_long status_ptr = arg2; 3710 struct rusage rusage, *rusage_ptr; 3711 target_ulong target_rusage = arg4; 3712 if (target_rusage) 3713 rusage_ptr = &rusage; 3714 else 3715 rusage_ptr = NULL; 3716 ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr)); 3717 if (!is_error(ret)) { 3718 if (status_ptr) 3719 tputl(status_ptr, status); 3720 if (target_rusage) { 3721 host_to_target_rusage(target_rusage, &rusage); 3722 } 3723 } 3724 } 3725 break; 3726 #ifdef TARGET_NR_swapoff 3727 case TARGET_NR_swapoff: 3728 p = lock_user_string(arg1); 3729 ret = get_errno(swapoff(p)); 3730 unlock_user(p, arg1, 0); 3731 break; 3732 #endif 3733 case TARGET_NR_sysinfo: 3734 { 3735 struct target_sysinfo *target_value; 3736 struct sysinfo value; 3737 ret = get_errno(sysinfo(&value)); 3738 if (!is_error(ret) && arg1) 3739 { 3740 /* ??? __put_user is probably wrong. */ 3741 lock_user_struct(target_value, arg1, 0); 3742 __put_user(value.uptime, &target_value->uptime); 3743 __put_user(value.loads[0], &target_value->loads[0]); 3744 __put_user(value.loads[1], &target_value->loads[1]); 3745 __put_user(value.loads[2], &target_value->loads[2]); 3746 __put_user(value.totalram, &target_value->totalram); 3747 __put_user(value.freeram, &target_value->freeram); 3748 __put_user(value.sharedram, &target_value->sharedram); 3749 __put_user(value.bufferram, &target_value->bufferram); 3750 __put_user(value.totalswap, &target_value->totalswap); 3751 __put_user(value.freeswap, &target_value->freeswap); 3752 __put_user(value.procs, &target_value->procs); 3753 __put_user(value.totalhigh, &target_value->totalhigh); 3754 __put_user(value.freehigh, &target_value->freehigh); 3755 __put_user(value.mem_unit, &target_value->mem_unit); 3756 unlock_user_struct(target_value, arg1, 1); 3757 } 3758 } 3759 break; 3760 #ifdef TARGET_NR_ipc 3761 case TARGET_NR_ipc: 3762 ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6); 3763 break; 3764 #endif 3765 case TARGET_NR_fsync: 3766 ret = get_errno(fsync(arg1)); 3767 break; 3768 case TARGET_NR_clone: 3769 ret = get_errno(do_fork(cpu_env, arg1, arg2)); 3770 break; 3771 #ifdef __NR_exit_group 3772 /* new thread calls */ 3773 case TARGET_NR_exit_group: 3774 gdb_exit(cpu_env, arg1); 3775 ret = get_errno(exit_group(arg1)); 3776 break; 3777 #endif 3778 case TARGET_NR_setdomainname: 3779 p = lock_user_string(arg1); 3780 ret = get_errno(setdomainname(p, arg2)); 3781 unlock_user(p, arg1, 0); 3782 break; 3783 case TARGET_NR_uname: 3784 /* no need to transcode because we use the linux syscall */ 3785 { 3786 struct new_utsname * buf; 3787 3788 lock_user_struct(buf, arg1, 0); 3789 ret = get_errno(sys_uname(buf)); 3790 if (!is_error(ret)) { 3791 /* Overrite the native machine name with whatever is being 3792 emulated. */ 3793 strcpy (buf->machine, UNAME_MACHINE); 3794 /* Allow the user to override the reported release. */ 3795 if (qemu_uname_release && *qemu_uname_release) 3796 strcpy (buf->release, qemu_uname_release); 3797 } 3798 unlock_user_struct(buf, arg1, 1); 3799 } 3800 break; 3801 #ifdef TARGET_I386 3802 case TARGET_NR_modify_ldt: 3803 ret = get_errno(do_modify_ldt(cpu_env, arg1, arg2, arg3)); 3804 break; 3805 #if !defined(TARGET_X86_64) 3806 case TARGET_NR_vm86old: 3807 goto unimplemented; 3808 case TARGET_NR_vm86: 3809 ret = do_vm86(cpu_env, arg1, arg2); 3810 break; 3811 #endif 3812 #endif 3813 case TARGET_NR_adjtimex: 3814 goto unimplemented; 3815 #ifdef TARGET_NR_create_module 3816 case TARGET_NR_create_module: 3817 #endif 3818 case TARGET_NR_init_module: 3819 case TARGET_NR_delete_module: 3820 #ifdef TARGET_NR_get_kernel_syms 3821 case TARGET_NR_get_kernel_syms: 3822 #endif 3823 goto unimplemented; 3824 case TARGET_NR_quotactl: 3825 goto unimplemented; 3826 case TARGET_NR_getpgid: 3827 ret = get_errno(getpgid(arg1)); 3828 break; 3829 case TARGET_NR_fchdir: 3830 ret = get_errno(fchdir(arg1)); 3831 break; 3832 #ifdef TARGET_NR_bdflush /* not on x86_64 */ 3833 case TARGET_NR_bdflush: 3834 goto unimplemented; 3835 #endif 3836 #ifdef TARGET_NR_sysfs 3837 case TARGET_NR_sysfs: 3838 goto unimplemented; 3839 #endif 3840 case TARGET_NR_personality: 3841 ret = get_errno(personality(arg1)); 3842 break; 3843 #ifdef TARGET_NR_afs_syscall 3844 case TARGET_NR_afs_syscall: 3845 goto unimplemented; 3846 #endif 3847 #ifdef TARGET_NR__llseek /* Not on alpha */ 3848 case TARGET_NR__llseek: 3849 { 3850 #if defined (__x86_64__) 3851 ret = get_errno(lseek(arg1, ((uint64_t )arg2 << 32) | arg3, arg5)); 3852 tput64(arg4, ret); 3853 #else 3854 int64_t res; 3855 ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5)); 3856 tput64(arg4, res); 3857 #endif 3858 } 3859 break; 3860 #endif 3861 case TARGET_NR_getdents: 3862 #if TARGET_LONG_SIZE != 4 3863 goto unimplemented; 3864 #warning not supported 3865 #elif TARGET_LONG_SIZE == 4 && HOST_LONG_SIZE == 8 3866 { 3867 struct target_dirent *target_dirp; 3868 struct dirent *dirp; 3869 long count = arg3; 3870 3871 dirp = malloc(count); 3872 if (!dirp) 3873 return -ENOMEM; 3874 3875 ret = get_errno(sys_getdents(arg1, dirp, count)); 3876 if (!is_error(ret)) { 3877 struct dirent *de; 3878 struct target_dirent *tde; 3879 int len = ret; 3880 int reclen, treclen; 3881 int count1, tnamelen; 3882 3883 count1 = 0; 3884 de = dirp; 3885 target_dirp = lock_user(arg2, count, 0); 3886 tde = target_dirp; 3887 while (len > 0) { 3888 reclen = de->d_reclen; 3889 treclen = reclen - (2 * (sizeof(long) - sizeof(target_long))); 3890 tde->d_reclen = tswap16(treclen); 3891 tde->d_ino = tswapl(de->d_ino); 3892 tde->d_off = tswapl(de->d_off); 3893 tnamelen = treclen - (2 * sizeof(target_long) + 2); 3894 if (tnamelen > 256) 3895 tnamelen = 256; 3896 /* XXX: may not be correct */ 3897 strncpy(tde->d_name, de->d_name, tnamelen); 3898 de = (struct dirent *)((char *)de + reclen); 3899 len -= reclen; 3900 tde = (struct target_dirent *)((char *)tde + treclen); 3901 count1 += treclen; 3902 } 3903 ret = count1; 3904 } 3905 unlock_user(target_dirp, arg2, ret); 3906 free(dirp); 3907 } 3908 #else 3909 { 3910 struct dirent *dirp; 3911 long count = arg3; 3912 3913 dirp = lock_user(arg2, count, 0); 3914 ret = get_errno(sys_getdents(arg1, dirp, count)); 3915 if (!is_error(ret)) { 3916 struct dirent *de; 3917 int len = ret; 3918 int reclen; 3919 de = dirp; 3920 while (len > 0) { 3921 reclen = de->d_reclen; 3922 if (reclen > len) 3923 break; 3924 de->d_reclen = tswap16(reclen); 3925 tswapls(&de->d_ino); 3926 tswapls(&de->d_off); 3927 de = (struct dirent *)((char *)de + reclen); 3928 len -= reclen; 3929 } 3930 } 3931 unlock_user(dirp, arg2, ret); 3932 } 3933 #endif 3934 break; 3935 #if defined(TARGET_NR_getdents64) && defined(__NR_getdents64) 3936 case TARGET_NR_getdents64: 3937 { 3938 struct dirent64 *dirp; 3939 long count = arg3; 3940 dirp = lock_user(arg2, count, 0); 3941 ret = get_errno(sys_getdents64(arg1, dirp, count)); 3942 if (!is_error(ret)) { 3943 struct dirent64 *de; 3944 int len = ret; 3945 int reclen; 3946 de = dirp; 3947 while (len > 0) { 3948 reclen = de->d_reclen; 3949 if (reclen > len) 3950 break; 3951 de->d_reclen = tswap16(reclen); 3952 tswap64s(&de->d_ino); 3953 tswap64s(&de->d_off); 3954 de = (struct dirent64 *)((char *)de + reclen); 3955 len -= reclen; 3956 } 3957 } 3958 unlock_user(dirp, arg2, ret); 3959 } 3960 break; 3961 #endif /* TARGET_NR_getdents64 */ 3962 #ifdef TARGET_NR__newselect 3963 case TARGET_NR__newselect: 3964 ret = do_select(arg1, arg2, arg3, arg4, arg5); 3965 break; 3966 #endif 3967 #ifdef TARGET_NR_poll 3968 case TARGET_NR_poll: 3969 { 3970 struct target_pollfd *target_pfd; 3971 unsigned int nfds = arg2; 3972 int timeout = arg3; 3973 struct pollfd *pfd; 3974 unsigned int i; 3975 3976 target_pfd = lock_user(arg1, sizeof(struct target_pollfd) * nfds, 1); 3977 pfd = alloca(sizeof(struct pollfd) * nfds); 3978 for(i = 0; i < nfds; i++) { 3979 pfd[i].fd = tswap32(target_pfd[i].fd); 3980 pfd[i].events = tswap16(target_pfd[i].events); 3981 } 3982 ret = get_errno(poll(pfd, nfds, timeout)); 3983 if (!is_error(ret)) { 3984 for(i = 0; i < nfds; i++) { 3985 target_pfd[i].revents = tswap16(pfd[i].revents); 3986 } 3987 ret += nfds * (sizeof(struct target_pollfd) 3988 - sizeof(struct pollfd)); 3989 } 3990 unlock_user(target_pfd, arg1, ret); 3991 } 3992 break; 3993 #endif 3994 case TARGET_NR_flock: 3995 /* NOTE: the flock constant seems to be the same for every 3996 Linux platform */ 3997 ret = get_errno(flock(arg1, arg2)); 3998 break; 3999 case TARGET_NR_readv: 4000 { 4001 int count = arg3; 4002 struct iovec *vec; 4003 4004 vec = alloca(count * sizeof(struct iovec)); 4005 lock_iovec(vec, arg2, count, 0); 4006 ret = get_errno(readv(arg1, vec, count)); 4007 unlock_iovec(vec, arg2, count, 1); 4008 } 4009 break; 4010 case TARGET_NR_writev: 4011 { 4012 int count = arg3; 4013 struct iovec *vec; 4014 4015 vec = alloca(count * sizeof(struct iovec)); 4016 lock_iovec(vec, arg2, count, 1); 4017 ret = get_errno(writev(arg1, vec, count)); 4018 unlock_iovec(vec, arg2, count, 0); 4019 } 4020 break; 4021 case TARGET_NR_getsid: 4022 ret = get_errno(getsid(arg1)); 4023 break; 4024 #if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */ 4025 case TARGET_NR_fdatasync: 4026 ret = get_errno(fdatasync(arg1)); 4027 break; 4028 #endif 4029 case TARGET_NR__sysctl: 4030 /* We don't implement this, but ENODIR is always a safe 4031 return value. */ 4032 return -ENOTDIR; 4033 case TARGET_NR_sched_setparam: 4034 { 4035 struct sched_param *target_schp; 4036 struct sched_param schp; 4037 4038 lock_user_struct(target_schp, arg2, 1); 4039 schp.sched_priority = tswap32(target_schp->sched_priority); 4040 unlock_user_struct(target_schp, arg2, 0); 4041 ret = get_errno(sched_setparam(arg1, &schp)); 4042 } 4043 break; 4044 case TARGET_NR_sched_getparam: 4045 { 4046 struct sched_param *target_schp; 4047 struct sched_param schp; 4048 ret = get_errno(sched_getparam(arg1, &schp)); 4049 if (!is_error(ret)) { 4050 lock_user_struct(target_schp, arg2, 0); 4051 target_schp->sched_priority = tswap32(schp.sched_priority); 4052 unlock_user_struct(target_schp, arg2, 1); 4053 } 4054 } 4055 break; 4056 case TARGET_NR_sched_setscheduler: 4057 { 4058 struct sched_param *target_schp; 4059 struct sched_param schp; 4060 lock_user_struct(target_schp, arg3, 1); 4061 schp.sched_priority = tswap32(target_schp->sched_priority); 4062 unlock_user_struct(target_schp, arg3, 0); 4063 ret = get_errno(sched_setscheduler(arg1, arg2, &schp)); 4064 } 4065 break; 4066 case TARGET_NR_sched_getscheduler: 4067 ret = get_errno(sched_getscheduler(arg1)); 4068 break; 4069 case TARGET_NR_sched_yield: 4070 ret = get_errno(sched_yield()); 4071 break; 4072 case TARGET_NR_sched_get_priority_max: 4073 ret = get_errno(sched_get_priority_max(arg1)); 4074 break; 4075 case TARGET_NR_sched_get_priority_min: 4076 ret = get_errno(sched_get_priority_min(arg1)); 4077 break; 4078 case TARGET_NR_sched_rr_get_interval: 4079 { 4080 struct timespec ts; 4081 ret = get_errno(sched_rr_get_interval(arg1, &ts)); 4082 if (!is_error(ret)) { 4083 host_to_target_timespec(arg2, &ts); 4084 } 4085 } 4086 break; 4087 case TARGET_NR_nanosleep: 4088 { 4089 struct timespec req, rem; 4090 target_to_host_timespec(&req, arg1); 4091 ret = get_errno(nanosleep(&req, &rem)); 4092 if (is_error(ret) && arg2) { 4093 host_to_target_timespec(arg2, &rem); 4094 } 4095 } 4096 break; 4097 #ifdef TARGET_NR_query_module 4098 case TARGET_NR_query_module: 4099 goto unimplemented; 4100 #endif 4101 #ifdef TARGET_NR_nfsservctl 4102 case TARGET_NR_nfsservctl: 4103 goto unimplemented; 4104 #endif 4105 case TARGET_NR_prctl: 4106 switch (arg1) 4107 { 4108 case PR_GET_PDEATHSIG: 4109 { 4110 int deathsig; 4111 ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5)); 4112 if (!is_error(ret) && arg2) 4113 tput32(arg2, deathsig); 4114 } 4115 break; 4116 default: 4117 ret = get_errno(prctl(arg1, arg2, arg3, arg4, arg5)); 4118 break; 4119 } 4120 break; 4121 #ifdef TARGET_NR_pread 4122 case TARGET_NR_pread: 4123 page_unprotect_range(arg2, arg3); 4124 p = lock_user(arg2, arg3, 0); 4125 ret = get_errno(pread(arg1, p, arg3, arg4)); 4126 unlock_user(p, arg2, ret); 4127 break; 4128 case TARGET_NR_pwrite: 4129 p = lock_user(arg2, arg3, 1); 4130 ret = get_errno(pwrite(arg1, p, arg3, arg4)); 4131 unlock_user(p, arg2, 0); 4132 break; 4133 #endif 4134 case TARGET_NR_getcwd: 4135 p = lock_user(arg1, arg2, 0); 4136 ret = get_errno(sys_getcwd1(p, arg2)); 4137 unlock_user(p, arg1, ret); 4138 break; 4139 case TARGET_NR_capget: 4140 goto unimplemented; 4141 case TARGET_NR_capset: 4142 goto unimplemented; 4143 case TARGET_NR_sigaltstack: 4144 goto unimplemented; 4145 case TARGET_NR_sendfile: 4146 goto unimplemented; 4147 #ifdef TARGET_NR_getpmsg 4148 case TARGET_NR_getpmsg: 4149 goto unimplemented; 4150 #endif 4151 #ifdef TARGET_NR_putpmsg 4152 case TARGET_NR_putpmsg: 4153 goto unimplemented; 4154 #endif 4155 #ifdef TARGET_NR_vfork 4156 case TARGET_NR_vfork: 4157 ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0)); 4158 break; 4159 #endif 4160 #ifdef TARGET_NR_ugetrlimit 4161 case TARGET_NR_ugetrlimit: 4162 { 4163 struct rlimit rlim; 4164 ret = get_errno(getrlimit(arg1, &rlim)); 4165 if (!is_error(ret)) { 4166 struct target_rlimit *target_rlim; 4167 lock_user_struct(target_rlim, arg2, 0); 4168 target_rlim->rlim_cur = tswapl(rlim.rlim_cur); 4169 target_rlim->rlim_max = tswapl(rlim.rlim_max); 4170 unlock_user_struct(target_rlim, arg2, 1); 4171 } 4172 break; 4173 } 4174 #endif 4175 #ifdef TARGET_NR_truncate64 4176 case TARGET_NR_truncate64: 4177 p = lock_user_string(arg1); 4178 ret = target_truncate64(cpu_env, p, arg2, arg3, arg4); 4179 unlock_user(p, arg1, 0); 4180 break; 4181 #endif 4182 #ifdef TARGET_NR_ftruncate64 4183 case TARGET_NR_ftruncate64: 4184 ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4); 4185 break; 4186 #endif 4187 #ifdef TARGET_NR_stat64 4188 case TARGET_NR_stat64: 4189 p = lock_user_string(arg1); 4190 ret = get_errno(stat(path(p), &st)); 4191 unlock_user(p, arg1, 0); 4192 goto do_stat64; 4193 #endif 4194 #ifdef TARGET_NR_lstat64 4195 case TARGET_NR_lstat64: 4196 p = lock_user_string(arg1); 4197 ret = get_errno(lstat(path(p), &st)); 4198 unlock_user(p, arg1, 0); 4199 goto do_stat64; 4200 #endif 4201 #ifdef TARGET_NR_fstat64 4202 case TARGET_NR_fstat64: 4203 { 4204 ret = get_errno(fstat(arg1, &st)); 4205 do_stat64: 4206 if (!is_error(ret)) { 4207 #ifdef TARGET_ARM 4208 if (((CPUARMState *)cpu_env)->eabi) { 4209 struct target_eabi_stat64 *target_st; 4210 lock_user_struct(target_st, arg2, 1); 4211 memset(target_st, 0, sizeof(struct target_eabi_stat64)); 4212 /* put_user is probably wrong. */ 4213 put_user(st.st_dev, &target_st->st_dev); 4214 put_user(st.st_ino, &target_st->st_ino); 4215 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO 4216 put_user(st.st_ino, &target_st->__st_ino); 4217 #endif 4218 put_user(st.st_mode, &target_st->st_mode); 4219 put_user(st.st_nlink, &target_st->st_nlink); 4220 put_user(st.st_uid, &target_st->st_uid); 4221 put_user(st.st_gid, &target_st->st_gid); 4222 put_user(st.st_rdev, &target_st->st_rdev); 4223 /* XXX: better use of kernel struct */ 4224 put_user(st.st_size, &target_st->st_size); 4225 put_user(st.st_blksize, &target_st->st_blksize); 4226 put_user(st.st_blocks, &target_st->st_blocks); 4227 put_user(st.st_atime, &target_st->target_st_atime); 4228 put_user(st.st_mtime, &target_st->target_st_mtime); 4229 put_user(st.st_ctime, &target_st->target_st_ctime); 4230 unlock_user_struct(target_st, arg2, 0); 4231 } else 4232 #endif 4233 { 4234 struct target_stat64 *target_st; 4235 lock_user_struct(target_st, arg2, 1); 4236 memset(target_st, 0, sizeof(struct target_stat64)); 4237 /* ??? put_user is probably wrong. */ 4238 put_user(st.st_dev, &target_st->st_dev); 4239 put_user(st.st_ino, &target_st->st_ino); 4240 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO 4241 put_user(st.st_ino, &target_st->__st_ino); 4242 #endif 4243 put_user(st.st_mode, &target_st->st_mode); 4244 put_user(st.st_nlink, &target_st->st_nlink); 4245 put_user(st.st_uid, &target_st->st_uid); 4246 put_user(st.st_gid, &target_st->st_gid); 4247 put_user(st.st_rdev, &target_st->st_rdev); 4248 /* XXX: better use of kernel struct */ 4249 put_user(st.st_size, &target_st->st_size); 4250 put_user(st.st_blksize, &target_st->st_blksize); 4251 put_user(st.st_blocks, &target_st->st_blocks); 4252 put_user(st.st_atime, &target_st->target_st_atime); 4253 put_user(st.st_mtime, &target_st->target_st_mtime); 4254 put_user(st.st_ctime, &target_st->target_st_ctime); 4255 unlock_user_struct(target_st, arg2, 0); 4256 } 4257 } 4258 } 4259 break; 4260 #endif 4261 #ifdef USE_UID16 4262 case TARGET_NR_lchown: 4263 p = lock_user_string(arg1); 4264 ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3))); 4265 unlock_user(p, arg1, 0); 4266 break; 4267 case TARGET_NR_getuid: 4268 ret = get_errno(high2lowuid(getuid())); 4269 break; 4270 case TARGET_NR_getgid: 4271 ret = get_errno(high2lowgid(getgid())); 4272 break; 4273 case TARGET_NR_geteuid: 4274 ret = get_errno(high2lowuid(geteuid())); 4275 break; 4276 case TARGET_NR_getegid: 4277 ret = get_errno(high2lowgid(getegid())); 4278 break; 4279 case TARGET_NR_setreuid: 4280 ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2))); 4281 break; 4282 case TARGET_NR_setregid: 4283 ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2))); 4284 break; 4285 case TARGET_NR_getgroups: 4286 { 4287 int gidsetsize = arg1; 4288 uint16_t *target_grouplist; 4289 gid_t *grouplist; 4290 int i; 4291 4292 grouplist = alloca(gidsetsize * sizeof(gid_t)); 4293 ret = get_errno(getgroups(gidsetsize, grouplist)); 4294 if (!is_error(ret)) { 4295 target_grouplist = lock_user(arg2, gidsetsize * 2, 0); 4296 for(i = 0;i < gidsetsize; i++) 4297 target_grouplist[i] = tswap16(grouplist[i]); 4298 unlock_user(target_grouplist, arg2, gidsetsize * 2); 4299 } 4300 } 4301 break; 4302 case TARGET_NR_setgroups: 4303 { 4304 int gidsetsize = arg1; 4305 uint16_t *target_grouplist; 4306 gid_t *grouplist; 4307 int i; 4308 4309 grouplist = alloca(gidsetsize * sizeof(gid_t)); 4310 target_grouplist = lock_user(arg2, gidsetsize * 2, 1); 4311 for(i = 0;i < gidsetsize; i++) 4312 grouplist[i] = tswap16(target_grouplist[i]); 4313 unlock_user(target_grouplist, arg2, 0); 4314 ret = get_errno(setgroups(gidsetsize, grouplist)); 4315 } 4316 break; 4317 case TARGET_NR_fchown: 4318 ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3))); 4319 break; 4320 #if defined(TARGET_NR_fchownat) && defined(__NR_fchownat) 4321 case TARGET_NR_fchownat: 4322 if (!arg2) { 4323 ret = -EFAULT; 4324 goto fail; 4325 } 4326 p = lock_user_string(arg2); 4327 if (!access_ok(VERIFY_READ, p, 1)) 4328 ret = -EFAULT; 4329 else 4330 ret = get_errno(sys_fchownat(arg1, p, low2highuid(arg3), low2highgid(arg4), arg5)); 4331 if (p) 4332 unlock_user(p, arg2, 0); 4333 break; 4334 #endif 4335 #ifdef TARGET_NR_setresuid 4336 case TARGET_NR_setresuid: 4337 ret = get_errno(setresuid(low2highuid(arg1), 4338 low2highuid(arg2), 4339 low2highuid(arg3))); 4340 break; 4341 #endif 4342 #ifdef TARGET_NR_getresuid 4343 case TARGET_NR_getresuid: 4344 { 4345 uid_t ruid, euid, suid; 4346 ret = get_errno(getresuid(&ruid, &euid, &suid)); 4347 if (!is_error(ret)) { 4348 tput16(arg1, tswap16(high2lowuid(ruid))); 4349 tput16(arg2, tswap16(high2lowuid(euid))); 4350 tput16(arg3, tswap16(high2lowuid(suid))); 4351 } 4352 } 4353 break; 4354 #endif 4355 #ifdef TARGET_NR_getresgid 4356 case TARGET_NR_setresgid: 4357 ret = get_errno(setresgid(low2highgid(arg1), 4358 low2highgid(arg2), 4359 low2highgid(arg3))); 4360 break; 4361 #endif 4362 #ifdef TARGET_NR_getresgid 4363 case TARGET_NR_getresgid: 4364 { 4365 gid_t rgid, egid, sgid; 4366 ret = get_errno(getresgid(&rgid, &egid, &sgid)); 4367 if (!is_error(ret)) { 4368 tput16(arg1, tswap16(high2lowgid(rgid))); 4369 tput16(arg2, tswap16(high2lowgid(egid))); 4370 tput16(arg3, tswap16(high2lowgid(sgid))); 4371 } 4372 } 4373 break; 4374 #endif 4375 case TARGET_NR_chown: 4376 p = lock_user_string(arg1); 4377 ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3))); 4378 unlock_user(p, arg1, 0); 4379 break; 4380 case TARGET_NR_setuid: 4381 ret = get_errno(setuid(low2highuid(arg1))); 4382 break; 4383 case TARGET_NR_setgid: 4384 ret = get_errno(setgid(low2highgid(arg1))); 4385 break; 4386 case TARGET_NR_setfsuid: 4387 ret = get_errno(setfsuid(arg1)); 4388 break; 4389 case TARGET_NR_setfsgid: 4390 ret = get_errno(setfsgid(arg1)); 4391 break; 4392 #endif /* USE_UID16 */ 4393 4394 #ifdef TARGET_NR_lchown32 4395 case TARGET_NR_lchown32: 4396 p = lock_user_string(arg1); 4397 ret = get_errno(lchown(p, arg2, arg3)); 4398 unlock_user(p, arg1, 0); 4399 break; 4400 #endif 4401 #ifdef TARGET_NR_getuid32 4402 case TARGET_NR_getuid32: 4403 ret = get_errno(getuid()); 4404 break; 4405 #endif 4406 #ifdef TARGET_NR_getgid32 4407 case TARGET_NR_getgid32: 4408 ret = get_errno(getgid()); 4409 break; 4410 #endif 4411 #ifdef TARGET_NR_geteuid32 4412 case TARGET_NR_geteuid32: 4413 ret = get_errno(geteuid()); 4414 break; 4415 #endif 4416 #ifdef TARGET_NR_getegid32 4417 case TARGET_NR_getegid32: 4418 ret = get_errno(getegid()); 4419 break; 4420 #endif 4421 #ifdef TARGET_NR_setreuid32 4422 case TARGET_NR_setreuid32: 4423 ret = get_errno(setreuid(arg1, arg2)); 4424 break; 4425 #endif 4426 #ifdef TARGET_NR_setregid32 4427 case TARGET_NR_setregid32: 4428 ret = get_errno(setregid(arg1, arg2)); 4429 break; 4430 #endif 4431 #ifdef TARGET_NR_getgroups32 4432 case TARGET_NR_getgroups32: 4433 { 4434 int gidsetsize = arg1; 4435 uint32_t *target_grouplist; 4436 gid_t *grouplist; 4437 int i; 4438 4439 grouplist = alloca(gidsetsize * sizeof(gid_t)); 4440 ret = get_errno(getgroups(gidsetsize, grouplist)); 4441 if (!is_error(ret)) { 4442 target_grouplist = lock_user(arg2, gidsetsize * 4, 0); 4443 for(i = 0;i < gidsetsize; i++) 4444 target_grouplist[i] = tswap32(grouplist[i]); 4445 unlock_user(target_grouplist, arg2, gidsetsize * 4); 4446 } 4447 } 4448 break; 4449 #endif 4450 #ifdef TARGET_NR_setgroups32 4451 case TARGET_NR_setgroups32: 4452 { 4453 int gidsetsize = arg1; 4454 uint32_t *target_grouplist; 4455 gid_t *grouplist; 4456 int i; 4457 4458 grouplist = alloca(gidsetsize * sizeof(gid_t)); 4459 target_grouplist = lock_user(arg2, gidsetsize * 4, 1); 4460 for(i = 0;i < gidsetsize; i++) 4461 grouplist[i] = tswap32(target_grouplist[i]); 4462 unlock_user(target_grouplist, arg2, 0); 4463 ret = get_errno(setgroups(gidsetsize, grouplist)); 4464 } 4465 break; 4466 #endif 4467 #ifdef TARGET_NR_fchown32 4468 case TARGET_NR_fchown32: 4469 ret = get_errno(fchown(arg1, arg2, arg3)); 4470 break; 4471 #endif 4472 #ifdef TARGET_NR_setresuid32 4473 case TARGET_NR_setresuid32: 4474 ret = get_errno(setresuid(arg1, arg2, arg3)); 4475 break; 4476 #endif 4477 #ifdef TARGET_NR_getresuid32 4478 case TARGET_NR_getresuid32: 4479 { 4480 uid_t ruid, euid, suid; 4481 ret = get_errno(getresuid(&ruid, &euid, &suid)); 4482 if (!is_error(ret)) { 4483 tput32(arg1, tswap32(ruid)); 4484 tput32(arg2, tswap32(euid)); 4485 tput32(arg3, tswap32(suid)); 4486 } 4487 } 4488 break; 4489 #endif 4490 #ifdef TARGET_NR_setresgid32 4491 case TARGET_NR_setresgid32: 4492 ret = get_errno(setresgid(arg1, arg2, arg3)); 4493 break; 4494 #endif 4495 #ifdef TARGET_NR_getresgid32 4496 case TARGET_NR_getresgid32: 4497 { 4498 gid_t rgid, egid, sgid; 4499 ret = get_errno(getresgid(&rgid, &egid, &sgid)); 4500 if (!is_error(ret)) { 4501 tput32(arg1, tswap32(rgid)); 4502 tput32(arg2, tswap32(egid)); 4503 tput32(arg3, tswap32(sgid)); 4504 } 4505 } 4506 break; 4507 #endif 4508 #ifdef TARGET_NR_chown32 4509 case TARGET_NR_chown32: 4510 p = lock_user_string(arg1); 4511 ret = get_errno(chown(p, arg2, arg3)); 4512 unlock_user(p, arg1, 0); 4513 break; 4514 #endif 4515 #ifdef TARGET_NR_setuid32 4516 case TARGET_NR_setuid32: 4517 ret = get_errno(setuid(arg1)); 4518 break; 4519 #endif 4520 #ifdef TARGET_NR_setgid32 4521 case TARGET_NR_setgid32: 4522 ret = get_errno(setgid(arg1)); 4523 break; 4524 #endif 4525 #ifdef TARGET_NR_setfsuid32 4526 case TARGET_NR_setfsuid32: 4527 ret = get_errno(setfsuid(arg1)); 4528 break; 4529 #endif 4530 #ifdef TARGET_NR_setfsgid32 4531 case TARGET_NR_setfsgid32: 4532 ret = get_errno(setfsgid(arg1)); 4533 break; 4534 #endif 4535 4536 case TARGET_NR_pivot_root: 4537 goto unimplemented; 4538 #ifdef TARGET_NR_mincore 4539 case TARGET_NR_mincore: 4540 goto unimplemented; 4541 #endif 4542 #ifdef TARGET_NR_madvise 4543 case TARGET_NR_madvise: 4544 /* A straight passthrough may not be safe because qemu sometimes 4545 turns private flie-backed mappings into anonymous mappings. 4546 This will break MADV_DONTNEED. 4547 This is a hint, so ignoring and returning success is ok. */ 4548 ret = get_errno(0); 4549 break; 4550 #endif 4551 #if TARGET_LONG_BITS == 32 4552 case TARGET_NR_fcntl64: 4553 { 4554 int cmd; 4555 struct flock64 fl; 4556 struct target_flock64 *target_fl; 4557 #ifdef TARGET_ARM 4558 struct target_eabi_flock64 *target_efl; 4559 #endif 4560 4561 switch(arg2){ 4562 case TARGET_F_GETLK64: 4563 cmd = F_GETLK64; 4564 break; 4565 case TARGET_F_SETLK64: 4566 cmd = F_SETLK64; 4567 break; 4568 case TARGET_F_SETLKW64: 4569 cmd = F_SETLK64; 4570 break; 4571 default: 4572 cmd = arg2; 4573 break; 4574 } 4575 4576 switch(arg2) { 4577 case TARGET_F_GETLK64: 4578 #ifdef TARGET_ARM 4579 if (((CPUARMState *)cpu_env)->eabi) { 4580 lock_user_struct(target_efl, arg3, 1); 4581 fl.l_type = tswap16(target_efl->l_type); 4582 fl.l_whence = tswap16(target_efl->l_whence); 4583 fl.l_start = tswap64(target_efl->l_start); 4584 fl.l_len = tswap64(target_efl->l_len); 4585 fl.l_pid = tswapl(target_efl->l_pid); 4586 unlock_user_struct(target_efl, arg3, 0); 4587 } else 4588 #endif 4589 { 4590 lock_user_struct(target_fl, arg3, 1); 4591 fl.l_type = tswap16(target_fl->l_type); 4592 fl.l_whence = tswap16(target_fl->l_whence); 4593 fl.l_start = tswap64(target_fl->l_start); 4594 fl.l_len = tswap64(target_fl->l_len); 4595 fl.l_pid = tswapl(target_fl->l_pid); 4596 unlock_user_struct(target_fl, arg3, 0); 4597 } 4598 ret = get_errno(fcntl(arg1, cmd, &fl)); 4599 if (ret == 0) { 4600 #ifdef TARGET_ARM 4601 if (((CPUARMState *)cpu_env)->eabi) { 4602 lock_user_struct(target_efl, arg3, 0); 4603 target_efl->l_type = tswap16(fl.l_type); 4604 target_efl->l_whence = tswap16(fl.l_whence); 4605 target_efl->l_start = tswap64(fl.l_start); 4606 target_efl->l_len = tswap64(fl.l_len); 4607 target_efl->l_pid = tswapl(fl.l_pid); 4608 unlock_user_struct(target_efl, arg3, 1); 4609 } else 4610 #endif 4611 { 4612 lock_user_struct(target_fl, arg3, 0); 4613 target_fl->l_type = tswap16(fl.l_type); 4614 target_fl->l_whence = tswap16(fl.l_whence); 4615 target_fl->l_start = tswap64(fl.l_start); 4616 target_fl->l_len = tswap64(fl.l_len); 4617 target_fl->l_pid = tswapl(fl.l_pid); 4618 unlock_user_struct(target_fl, arg3, 1); 4619 } 4620 } 4621 break; 4622 4623 case TARGET_F_SETLK64: 4624 case TARGET_F_SETLKW64: 4625 #ifdef TARGET_ARM 4626 if (((CPUARMState *)cpu_env)->eabi) { 4627 lock_user_struct(target_efl, arg3, 1); 4628 fl.l_type = tswap16(target_efl->l_type); 4629 fl.l_whence = tswap16(target_efl->l_whence); 4630 fl.l_start = tswap64(target_efl->l_start); 4631 fl.l_len = tswap64(target_efl->l_len); 4632 fl.l_pid = tswapl(target_efl->l_pid); 4633 unlock_user_struct(target_efl, arg3, 0); 4634 } else 4635 #endif 4636 { 4637 lock_user_struct(target_fl, arg3, 1); 4638 fl.l_type = tswap16(target_fl->l_type); 4639 fl.l_whence = tswap16(target_fl->l_whence); 4640 fl.l_start = tswap64(target_fl->l_start); 4641 fl.l_len = tswap64(target_fl->l_len); 4642 fl.l_pid = tswapl(target_fl->l_pid); 4643 unlock_user_struct(target_fl, arg3, 0); 4644 } 4645 ret = get_errno(fcntl(arg1, cmd, &fl)); 4646 break; 4647 default: 4648 ret = get_errno(do_fcntl(arg1, cmd, arg3)); 4649 break; 4650 } 4651 break; 4652 } 4653 #endif 4654 #ifdef TARGET_NR_cacheflush 4655 case TARGET_NR_cacheflush: 4656 /* self-modifying code is handled automatically, so nothing needed */ 4657 ret = 0; 4658 break; 4659 #endif 4660 #ifdef TARGET_NR_security 4661 case TARGET_NR_security: 4662 goto unimplemented; 4663 #endif 4664 #ifdef TARGET_NR_getpagesize 4665 case TARGET_NR_getpagesize: 4666 ret = TARGET_PAGE_SIZE; 4667 break; 4668 #endif 4669 case TARGET_NR_gettid: 4670 ret = get_errno(gettid()); 4671 break; 4672 #ifdef TARGET_NR_readahead 4673 case TARGET_NR_readahead: 4674 goto unimplemented; 4675 #endif 4676 #ifdef TARGET_NR_setxattr 4677 case TARGET_NR_setxattr: 4678 case TARGET_NR_lsetxattr: 4679 case TARGET_NR_fsetxattr: 4680 case TARGET_NR_getxattr: 4681 case TARGET_NR_lgetxattr: 4682 case TARGET_NR_fgetxattr: 4683 case TARGET_NR_listxattr: 4684 case TARGET_NR_llistxattr: 4685 case TARGET_NR_flistxattr: 4686 case TARGET_NR_removexattr: 4687 case TARGET_NR_lremovexattr: 4688 case TARGET_NR_fremovexattr: 4689 goto unimplemented_nowarn; 4690 #endif 4691 #ifdef TARGET_NR_set_thread_area 4692 case TARGET_NR_set_thread_area: 4693 #ifdef TARGET_MIPS 4694 ((CPUMIPSState *) cpu_env)->tls_value = arg1; 4695 ret = 0; 4696 break; 4697 #else 4698 goto unimplemented_nowarn; 4699 #endif 4700 #endif 4701 #ifdef TARGET_NR_get_thread_area 4702 case TARGET_NR_get_thread_area: 4703 goto unimplemented_nowarn; 4704 #endif 4705 #ifdef TARGET_NR_getdomainname 4706 case TARGET_NR_getdomainname: 4707 goto unimplemented_nowarn; 4708 #endif 4709 4710 #ifdef TARGET_NR_clock_gettime 4711 case TARGET_NR_clock_gettime: 4712 { 4713 struct timespec ts; 4714 ret = get_errno(clock_gettime(arg1, &ts)); 4715 if (!is_error(ret)) { 4716 host_to_target_timespec(arg2, &ts); 4717 } 4718 break; 4719 } 4720 #endif 4721 #ifdef TARGET_NR_clock_getres 4722 case TARGET_NR_clock_getres: 4723 { 4724 struct timespec ts; 4725 ret = get_errno(clock_getres(arg1, &ts)); 4726 if (!is_error(ret)) { 4727 host_to_target_timespec(arg2, &ts); 4728 } 4729 break; 4730 } 4731 #endif 4732 4733 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address) 4734 case TARGET_NR_set_tid_address: 4735 ret = get_errno(set_tid_address((int *) arg1)); 4736 break; 4737 #endif 4738 4739 #if defined(TARGET_NR_tkill) && defined(__NR_tkill) 4740 case TARGET_NR_tkill: 4741 ret = get_errno(sys_tkill((int)arg1, (int)arg2)); 4742 break; 4743 #endif 4744 4745 #if defined(TARGET_NR_tgkill) && defined(__NR_tgkill) 4746 case TARGET_NR_tgkill: 4747 ret = get_errno(sys_tgkill((int)arg1, (int)arg2, (int)arg3)); 4748 break; 4749 #endif 4750 4751 #ifdef TARGET_NR_set_robust_list 4752 case TARGET_NR_set_robust_list: 4753 goto unimplemented_nowarn; 4754 #endif 4755 4756 default: 4757 unimplemented: 4758 gemu_log("qemu: Unsupported syscall: %d\n", num); 4759 #if defined(TARGET_NR_setxattr) || defined(TARGET_NR_get_thread_area) || defined(TARGET_NR_getdomainname) || defined(TARGET_NR_set_robust_list) 4760 unimplemented_nowarn: 4761 #endif 4762 ret = -ENOSYS; 4763 break; 4764 } 4765 fail: 4766 #ifdef DEBUG 4767 gemu_log(" = %ld\n", ret); 4768 #endif 4769 return ret; 4770 } 4771 4772