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) || defined(TARGET_CRIS) 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_faccessat __NR_faccessat 143 #define __NR_sys_fchmodat __NR_fchmodat 144 #define __NR_sys_fchownat __NR_fchownat 145 #define __NR_sys_getcwd1 __NR_getcwd 146 #define __NR_sys_getdents __NR_getdents 147 #define __NR_sys_getdents64 __NR_getdents64 148 #define __NR_sys_getpriority __NR_getpriority 149 #define __NR_sys_linkat __NR_linkat 150 #define __NR_sys_mkdirat __NR_mkdirat 151 #define __NR_sys_mknodat __NR_mknodat 152 #define __NR_sys_openat __NR_openat 153 #define __NR_sys_readlinkat __NR_readlinkat 154 #define __NR_sys_renameat __NR_renameat 155 #define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo 156 #define __NR_sys_symlinkat __NR_symlinkat 157 #define __NR_sys_syslog __NR_syslog 158 #define __NR_sys_tgkill __NR_tgkill 159 #define __NR_sys_tkill __NR_tkill 160 #define __NR_sys_unlinkat __NR_unlinkat 161 #define __NR_sys_utimensat __NR_utimensat 162 163 #if defined(__alpha__) || defined (__ia64__) || defined(__x86_64__) 164 #define __NR__llseek __NR_lseek 165 #endif 166 167 #ifdef __NR_gettid 168 _syscall0(int, gettid) 169 #else 170 /* This is a replacement for the host gettid() and must return a host 171 errno. */ 172 static int gettid(void) { 173 return -ENOSYS; 174 } 175 #endif 176 _syscall1(int,sys_uname,struct new_utsname *,buf) 177 #if defined(TARGET_NR_faccessat) && defined(__NR_faccessat) 178 _syscall4(int,sys_faccessat,int,dirfd,const char *,pathname,int,mode,int,flags) 179 #endif 180 #if defined(TARGET_NR_fchmodat) && defined(__NR_fchmodat) 181 _syscall4(int,sys_fchmodat,int,dirfd,const char *,pathname, 182 mode_t,mode,int,flags) 183 #endif 184 #if defined(TARGET_NR_fchownat) && defined(__NR_fchownat) 185 _syscall5(int,sys_fchownat,int,dirfd,const char *,pathname, 186 uid_t,owner,gid_t,group,int,flags) 187 #endif 188 _syscall2(int,sys_getcwd1,char *,buf,size_t,size) 189 _syscall3(int, sys_getdents, uint, fd, struct dirent *, dirp, uint, count); 190 #if defined(TARGET_NR_getdents64) && defined(__NR_getdents64) 191 _syscall3(int, sys_getdents64, uint, fd, struct dirent64 *, dirp, uint, count); 192 #endif 193 _syscall2(int, sys_getpriority, int, which, int, who); 194 _syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo, 195 loff_t *, res, uint, wh); 196 #if defined(TARGET_NR_linkat) && defined(__NR_linkat) 197 _syscall5(int,sys_linkat,int,olddirfd,const char *,oldpath, 198 int,newdirfd,const char *,newpath,int,flags) 199 #endif 200 #if defined(TARGET_NR_mkdirat) && defined(__NR_mkdirat) 201 _syscall3(int,sys_mkdirat,int,dirfd,const char *,pathname,mode_t,mode) 202 #endif 203 #if defined(TARGET_NR_mknodat) && defined(__NR_mknodat) 204 _syscall4(int,sys_mknodat,int,dirfd,const char *,pathname, 205 mode_t,mode,dev_t,dev) 206 #endif 207 #if defined(TARGET_NR_openat) && defined(__NR_openat) 208 _syscall4(int,sys_openat,int,dirfd,const char *,pathname,int,flags,mode_t,mode) 209 #endif 210 #if defined(TARGET_NR_readlinkat) && defined(__NR_readlinkat) 211 _syscall4(int,sys_readlinkat,int,dirfd,const char *,pathname, 212 char *,buf,size_t,bufsize) 213 #endif 214 #if defined(TARGET_NR_renameat) && defined(__NR_renameat) 215 _syscall4(int,sys_renameat,int,olddirfd,const char *,oldpath, 216 int,newdirfd,const char *,newpath) 217 #endif 218 _syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo) 219 #if defined(TARGET_NR_symlinkat) && defined(__NR_symlinkat) 220 _syscall3(int,sys_symlinkat,const char *,oldpath, 221 int,newdirfd,const char *,newpath) 222 #endif 223 _syscall3(int,sys_syslog,int,type,char*,bufp,int,len) 224 #if defined(TARGET_NR_tgkill) && defined(__NR_tgkill) 225 _syscall3(int,sys_tgkill,int,tgid,int,pid,int,sig) 226 #endif 227 #if defined(TARGET_NR_tkill) && defined(__NR_tkill) 228 _syscall2(int,sys_tkill,int,tid,int,sig) 229 #endif 230 #ifdef __NR_exit_group 231 _syscall1(int,exit_group,int,error_code) 232 #endif 233 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address) 234 _syscall1(int,set_tid_address,int *,tidptr) 235 #endif 236 #if defined(TARGET_NR_unlinkat) && defined(__NR_unlinkat) 237 _syscall3(int,sys_unlinkat,int,dirfd,const char *,pathname,int,flags) 238 #endif 239 #if defined(TARGET_NR_utimensat) && defined(__NR_utimensat) 240 _syscall4(int,sys_utimensat,int,dirfd,const char *,pathname, 241 const struct timespec *,tsp,int,flags) 242 #endif 243 244 extern int personality(int); 245 extern int flock(int, int); 246 extern int setfsuid(int); 247 extern int setfsgid(int); 248 extern int setresuid(uid_t, uid_t, uid_t); 249 extern int getresuid(uid_t *, uid_t *, uid_t *); 250 extern int setresgid(gid_t, gid_t, gid_t); 251 extern int getresgid(gid_t *, gid_t *, gid_t *); 252 extern int setgroups(int, gid_t *); 253 254 #define ERRNO_TABLE_SIZE 1200 255 256 /* target_to_host_errno_table[] is initialized from 257 * host_to_target_errno_table[] in syscall_init(). */ 258 static uint16_t target_to_host_errno_table[ERRNO_TABLE_SIZE] = { 259 }; 260 261 /* 262 * This list is the union of errno values overridden in asm-<arch>/errno.h 263 * minus the errnos that are not actually generic to all archs. 264 */ 265 static uint16_t host_to_target_errno_table[ERRNO_TABLE_SIZE] = { 266 [EIDRM] = TARGET_EIDRM, 267 [ECHRNG] = TARGET_ECHRNG, 268 [EL2NSYNC] = TARGET_EL2NSYNC, 269 [EL3HLT] = TARGET_EL3HLT, 270 [EL3RST] = TARGET_EL3RST, 271 [ELNRNG] = TARGET_ELNRNG, 272 [EUNATCH] = TARGET_EUNATCH, 273 [ENOCSI] = TARGET_ENOCSI, 274 [EL2HLT] = TARGET_EL2HLT, 275 [EDEADLK] = TARGET_EDEADLK, 276 [ENOLCK] = TARGET_ENOLCK, 277 [EBADE] = TARGET_EBADE, 278 [EBADR] = TARGET_EBADR, 279 [EXFULL] = TARGET_EXFULL, 280 [ENOANO] = TARGET_ENOANO, 281 [EBADRQC] = TARGET_EBADRQC, 282 [EBADSLT] = TARGET_EBADSLT, 283 [EBFONT] = TARGET_EBFONT, 284 [ENOSTR] = TARGET_ENOSTR, 285 [ENODATA] = TARGET_ENODATA, 286 [ETIME] = TARGET_ETIME, 287 [ENOSR] = TARGET_ENOSR, 288 [ENONET] = TARGET_ENONET, 289 [ENOPKG] = TARGET_ENOPKG, 290 [EREMOTE] = TARGET_EREMOTE, 291 [ENOLINK] = TARGET_ENOLINK, 292 [EADV] = TARGET_EADV, 293 [ESRMNT] = TARGET_ESRMNT, 294 [ECOMM] = TARGET_ECOMM, 295 [EPROTO] = TARGET_EPROTO, 296 [EDOTDOT] = TARGET_EDOTDOT, 297 [EMULTIHOP] = TARGET_EMULTIHOP, 298 [EBADMSG] = TARGET_EBADMSG, 299 [ENAMETOOLONG] = TARGET_ENAMETOOLONG, 300 [EOVERFLOW] = TARGET_EOVERFLOW, 301 [ENOTUNIQ] = TARGET_ENOTUNIQ, 302 [EBADFD] = TARGET_EBADFD, 303 [EREMCHG] = TARGET_EREMCHG, 304 [ELIBACC] = TARGET_ELIBACC, 305 [ELIBBAD] = TARGET_ELIBBAD, 306 [ELIBSCN] = TARGET_ELIBSCN, 307 [ELIBMAX] = TARGET_ELIBMAX, 308 [ELIBEXEC] = TARGET_ELIBEXEC, 309 [EILSEQ] = TARGET_EILSEQ, 310 [ENOSYS] = TARGET_ENOSYS, 311 [ELOOP] = TARGET_ELOOP, 312 [ERESTART] = TARGET_ERESTART, 313 [ESTRPIPE] = TARGET_ESTRPIPE, 314 [ENOTEMPTY] = TARGET_ENOTEMPTY, 315 [EUSERS] = TARGET_EUSERS, 316 [ENOTSOCK] = TARGET_ENOTSOCK, 317 [EDESTADDRREQ] = TARGET_EDESTADDRREQ, 318 [EMSGSIZE] = TARGET_EMSGSIZE, 319 [EPROTOTYPE] = TARGET_EPROTOTYPE, 320 [ENOPROTOOPT] = TARGET_ENOPROTOOPT, 321 [EPROTONOSUPPORT] = TARGET_EPROTONOSUPPORT, 322 [ESOCKTNOSUPPORT] = TARGET_ESOCKTNOSUPPORT, 323 [EOPNOTSUPP] = TARGET_EOPNOTSUPP, 324 [EPFNOSUPPORT] = TARGET_EPFNOSUPPORT, 325 [EAFNOSUPPORT] = TARGET_EAFNOSUPPORT, 326 [EADDRINUSE] = TARGET_EADDRINUSE, 327 [EADDRNOTAVAIL] = TARGET_EADDRNOTAVAIL, 328 [ENETDOWN] = TARGET_ENETDOWN, 329 [ENETUNREACH] = TARGET_ENETUNREACH, 330 [ENETRESET] = TARGET_ENETRESET, 331 [ECONNABORTED] = TARGET_ECONNABORTED, 332 [ECONNRESET] = TARGET_ECONNRESET, 333 [ENOBUFS] = TARGET_ENOBUFS, 334 [EISCONN] = TARGET_EISCONN, 335 [ENOTCONN] = TARGET_ENOTCONN, 336 [EUCLEAN] = TARGET_EUCLEAN, 337 [ENOTNAM] = TARGET_ENOTNAM, 338 [ENAVAIL] = TARGET_ENAVAIL, 339 [EISNAM] = TARGET_EISNAM, 340 [EREMOTEIO] = TARGET_EREMOTEIO, 341 [ESHUTDOWN] = TARGET_ESHUTDOWN, 342 [ETOOMANYREFS] = TARGET_ETOOMANYREFS, 343 [ETIMEDOUT] = TARGET_ETIMEDOUT, 344 [ECONNREFUSED] = TARGET_ECONNREFUSED, 345 [EHOSTDOWN] = TARGET_EHOSTDOWN, 346 [EHOSTUNREACH] = TARGET_EHOSTUNREACH, 347 [EALREADY] = TARGET_EALREADY, 348 [EINPROGRESS] = TARGET_EINPROGRESS, 349 [ESTALE] = TARGET_ESTALE, 350 [ECANCELED] = TARGET_ECANCELED, 351 [ENOMEDIUM] = TARGET_ENOMEDIUM, 352 [EMEDIUMTYPE] = TARGET_EMEDIUMTYPE, 353 #ifdef ENOKEY 354 [ENOKEY] = TARGET_ENOKEY, 355 #endif 356 #ifdef EKEYEXPIRED 357 [EKEYEXPIRED] = TARGET_EKEYEXPIRED, 358 #endif 359 #ifdef EKEYREVOKED 360 [EKEYREVOKED] = TARGET_EKEYREVOKED, 361 #endif 362 #ifdef EKEYREJECTED 363 [EKEYREJECTED] = TARGET_EKEYREJECTED, 364 #endif 365 #ifdef EOWNERDEAD 366 [EOWNERDEAD] = TARGET_EOWNERDEAD, 367 #endif 368 #ifdef ENOTRECOVERABLE 369 [ENOTRECOVERABLE] = TARGET_ENOTRECOVERABLE, 370 #endif 371 }; 372 373 static inline int host_to_target_errno(int err) 374 { 375 if(host_to_target_errno_table[err]) 376 return host_to_target_errno_table[err]; 377 return err; 378 } 379 380 static inline int target_to_host_errno(int err) 381 { 382 if (target_to_host_errno_table[err]) 383 return target_to_host_errno_table[err]; 384 return err; 385 } 386 387 static inline abi_long get_errno(abi_long ret) 388 { 389 if (ret == -1) 390 return -host_to_target_errno(errno); 391 else 392 return ret; 393 } 394 395 static inline int is_error(abi_long ret) 396 { 397 return (abi_ulong)ret >= (abi_ulong)(-4096); 398 } 399 400 char *target_strerror(int err) 401 { 402 return strerror(target_to_host_errno(err)); 403 } 404 405 static abi_ulong target_brk; 406 static abi_ulong target_original_brk; 407 408 void target_set_brk(abi_ulong new_brk) 409 { 410 target_original_brk = target_brk = HOST_PAGE_ALIGN(new_brk); 411 } 412 413 /* do_brk() must return target values and target errnos. */ 414 abi_long do_brk(abi_ulong new_brk) 415 { 416 abi_ulong brk_page; 417 abi_long mapped_addr; 418 int new_alloc_size; 419 420 if (!new_brk) 421 return target_brk; 422 if (new_brk < target_original_brk) 423 return target_brk; 424 425 brk_page = HOST_PAGE_ALIGN(target_brk); 426 427 /* If the new brk is less than this, set it and we're done... */ 428 if (new_brk < brk_page) { 429 target_brk = new_brk; 430 return target_brk; 431 } 432 433 /* We need to allocate more memory after the brk... */ 434 new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1); 435 mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size, 436 PROT_READ|PROT_WRITE, 437 MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0)); 438 439 if (!is_error(mapped_addr)) 440 target_brk = new_brk; 441 442 return target_brk; 443 } 444 445 static inline abi_long copy_from_user_fdset(fd_set *fds, 446 abi_ulong target_fds_addr, 447 int n) 448 { 449 int i, nw, j, k; 450 abi_ulong b, *target_fds; 451 452 nw = (n + TARGET_ABI_BITS - 1) / TARGET_ABI_BITS; 453 if (!(target_fds = lock_user(VERIFY_READ, 454 target_fds_addr, 455 sizeof(abi_ulong) * nw, 456 1))) 457 return -TARGET_EFAULT; 458 459 FD_ZERO(fds); 460 k = 0; 461 for (i = 0; i < nw; i++) { 462 /* grab the abi_ulong */ 463 __get_user(b, &target_fds[i]); 464 for (j = 0; j < TARGET_ABI_BITS; j++) { 465 /* check the bit inside the abi_ulong */ 466 if ((b >> j) & 1) 467 FD_SET(k, fds); 468 k++; 469 } 470 } 471 472 unlock_user(target_fds, target_fds_addr, 0); 473 474 return 0; 475 } 476 477 static inline abi_long copy_to_user_fdset(abi_ulong target_fds_addr, 478 const fd_set *fds, 479 int n) 480 { 481 int i, nw, j, k; 482 abi_long v; 483 abi_ulong *target_fds; 484 485 nw = (n + TARGET_ABI_BITS - 1) / TARGET_ABI_BITS; 486 if (!(target_fds = lock_user(VERIFY_WRITE, 487 target_fds_addr, 488 sizeof(abi_ulong) * nw, 489 0))) 490 return -TARGET_EFAULT; 491 492 k = 0; 493 for (i = 0; i < nw; i++) { 494 v = 0; 495 for (j = 0; j < TARGET_ABI_BITS; j++) { 496 v |= ((FD_ISSET(k, fds) != 0) << j); 497 k++; 498 } 499 __put_user(v, &target_fds[i]); 500 } 501 502 unlock_user(target_fds, target_fds_addr, sizeof(abi_ulong) * nw); 503 504 return 0; 505 } 506 507 #if defined(__alpha__) 508 #define HOST_HZ 1024 509 #else 510 #define HOST_HZ 100 511 #endif 512 513 static inline abi_long host_to_target_clock_t(long ticks) 514 { 515 #if HOST_HZ == TARGET_HZ 516 return ticks; 517 #else 518 return ((int64_t)ticks * TARGET_HZ) / HOST_HZ; 519 #endif 520 } 521 522 static inline abi_long host_to_target_rusage(abi_ulong target_addr, 523 const struct rusage *rusage) 524 { 525 struct target_rusage *target_rusage; 526 527 if (!lock_user_struct(VERIFY_WRITE, target_rusage, target_addr, 0)) 528 return -TARGET_EFAULT; 529 target_rusage->ru_utime.tv_sec = tswapl(rusage->ru_utime.tv_sec); 530 target_rusage->ru_utime.tv_usec = tswapl(rusage->ru_utime.tv_usec); 531 target_rusage->ru_stime.tv_sec = tswapl(rusage->ru_stime.tv_sec); 532 target_rusage->ru_stime.tv_usec = tswapl(rusage->ru_stime.tv_usec); 533 target_rusage->ru_maxrss = tswapl(rusage->ru_maxrss); 534 target_rusage->ru_ixrss = tswapl(rusage->ru_ixrss); 535 target_rusage->ru_idrss = tswapl(rusage->ru_idrss); 536 target_rusage->ru_isrss = tswapl(rusage->ru_isrss); 537 target_rusage->ru_minflt = tswapl(rusage->ru_minflt); 538 target_rusage->ru_majflt = tswapl(rusage->ru_majflt); 539 target_rusage->ru_nswap = tswapl(rusage->ru_nswap); 540 target_rusage->ru_inblock = tswapl(rusage->ru_inblock); 541 target_rusage->ru_oublock = tswapl(rusage->ru_oublock); 542 target_rusage->ru_msgsnd = tswapl(rusage->ru_msgsnd); 543 target_rusage->ru_msgrcv = tswapl(rusage->ru_msgrcv); 544 target_rusage->ru_nsignals = tswapl(rusage->ru_nsignals); 545 target_rusage->ru_nvcsw = tswapl(rusage->ru_nvcsw); 546 target_rusage->ru_nivcsw = tswapl(rusage->ru_nivcsw); 547 unlock_user_struct(target_rusage, target_addr, 1); 548 549 return 0; 550 } 551 552 static inline abi_long copy_from_user_timeval(struct timeval *tv, 553 abi_ulong target_tv_addr) 554 { 555 struct target_timeval *target_tv; 556 557 if (!lock_user_struct(VERIFY_READ, target_tv, target_tv_addr, 1)) 558 return -TARGET_EFAULT; 559 560 __get_user(tv->tv_sec, &target_tv->tv_sec); 561 __get_user(tv->tv_usec, &target_tv->tv_usec); 562 563 unlock_user_struct(target_tv, target_tv_addr, 0); 564 565 return 0; 566 } 567 568 static inline abi_long copy_to_user_timeval(abi_ulong target_tv_addr, 569 const struct timeval *tv) 570 { 571 struct target_timeval *target_tv; 572 573 if (!lock_user_struct(VERIFY_WRITE, target_tv, target_tv_addr, 0)) 574 return -TARGET_EFAULT; 575 576 __put_user(tv->tv_sec, &target_tv->tv_sec); 577 __put_user(tv->tv_usec, &target_tv->tv_usec); 578 579 unlock_user_struct(target_tv, target_tv_addr, 1); 580 581 return 0; 582 } 583 584 585 /* do_select() must return target values and target errnos. */ 586 static abi_long do_select(int n, 587 abi_ulong rfd_addr, abi_ulong wfd_addr, 588 abi_ulong efd_addr, abi_ulong target_tv_addr) 589 { 590 fd_set rfds, wfds, efds; 591 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr; 592 struct timeval tv, *tv_ptr; 593 abi_long ret; 594 595 if (rfd_addr) { 596 if (copy_from_user_fdset(&rfds, rfd_addr, n)) 597 return -TARGET_EFAULT; 598 rfds_ptr = &rfds; 599 } else { 600 rfds_ptr = NULL; 601 } 602 if (wfd_addr) { 603 if (copy_from_user_fdset(&wfds, wfd_addr, n)) 604 return -TARGET_EFAULT; 605 wfds_ptr = &wfds; 606 } else { 607 wfds_ptr = NULL; 608 } 609 if (efd_addr) { 610 if (copy_from_user_fdset(&efds, efd_addr, n)) 611 return -TARGET_EFAULT; 612 efds_ptr = &efds; 613 } else { 614 efds_ptr = NULL; 615 } 616 617 if (target_tv_addr) { 618 if (copy_from_user_timeval(&tv, target_tv_addr)) 619 return -TARGET_EFAULT; 620 tv_ptr = &tv; 621 } else { 622 tv_ptr = NULL; 623 } 624 625 ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr)); 626 627 if (!is_error(ret)) { 628 if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n)) 629 return -TARGET_EFAULT; 630 if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n)) 631 return -TARGET_EFAULT; 632 if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n)) 633 return -TARGET_EFAULT; 634 635 if (target_tv_addr && copy_to_user_timeval(target_tv_addr, &tv)) 636 return -TARGET_EFAULT; 637 } 638 639 return ret; 640 } 641 642 static inline abi_long target_to_host_sockaddr(struct sockaddr *addr, 643 abi_ulong target_addr, 644 socklen_t len) 645 { 646 struct target_sockaddr *target_saddr; 647 648 target_saddr = lock_user(VERIFY_READ, target_addr, len, 1); 649 if (!target_saddr) 650 return -TARGET_EFAULT; 651 memcpy(addr, target_saddr, len); 652 addr->sa_family = tswap16(target_saddr->sa_family); 653 unlock_user(target_saddr, target_addr, 0); 654 655 return 0; 656 } 657 658 static inline abi_long host_to_target_sockaddr(abi_ulong target_addr, 659 struct sockaddr *addr, 660 socklen_t len) 661 { 662 struct target_sockaddr *target_saddr; 663 664 target_saddr = lock_user(VERIFY_WRITE, target_addr, len, 0); 665 if (!target_saddr) 666 return -TARGET_EFAULT; 667 memcpy(target_saddr, addr, len); 668 target_saddr->sa_family = tswap16(addr->sa_family); 669 unlock_user(target_saddr, target_addr, len); 670 671 return 0; 672 } 673 674 /* ??? Should this also swap msgh->name? */ 675 static inline abi_long target_to_host_cmsg(struct msghdr *msgh, 676 struct target_msghdr *target_msgh) 677 { 678 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh); 679 abi_long msg_controllen; 680 abi_ulong target_cmsg_addr; 681 struct target_cmsghdr *target_cmsg; 682 socklen_t space = 0; 683 684 msg_controllen = tswapl(target_msgh->msg_controllen); 685 if (msg_controllen < sizeof (struct target_cmsghdr)) 686 goto the_end; 687 target_cmsg_addr = tswapl(target_msgh->msg_control); 688 target_cmsg = lock_user(VERIFY_READ, target_cmsg_addr, msg_controllen, 1); 689 if (!target_cmsg) 690 return -TARGET_EFAULT; 691 692 while (cmsg && target_cmsg) { 693 void *data = CMSG_DATA(cmsg); 694 void *target_data = TARGET_CMSG_DATA(target_cmsg); 695 696 int len = tswapl(target_cmsg->cmsg_len) 697 - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr)); 698 699 space += CMSG_SPACE(len); 700 if (space > msgh->msg_controllen) { 701 space -= CMSG_SPACE(len); 702 gemu_log("Host cmsg overflow\n"); 703 break; 704 } 705 706 cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level); 707 cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type); 708 cmsg->cmsg_len = CMSG_LEN(len); 709 710 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) { 711 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type); 712 memcpy(data, target_data, len); 713 } else { 714 int *fd = (int *)data; 715 int *target_fd = (int *)target_data; 716 int i, numfds = len / sizeof(int); 717 718 for (i = 0; i < numfds; i++) 719 fd[i] = tswap32(target_fd[i]); 720 } 721 722 cmsg = CMSG_NXTHDR(msgh, cmsg); 723 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg); 724 } 725 unlock_user(target_cmsg, target_cmsg_addr, 0); 726 the_end: 727 msgh->msg_controllen = space; 728 return 0; 729 } 730 731 /* ??? Should this also swap msgh->name? */ 732 static inline abi_long host_to_target_cmsg(struct target_msghdr *target_msgh, 733 struct msghdr *msgh) 734 { 735 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh); 736 abi_long msg_controllen; 737 abi_ulong target_cmsg_addr; 738 struct target_cmsghdr *target_cmsg; 739 socklen_t space = 0; 740 741 msg_controllen = tswapl(target_msgh->msg_controllen); 742 if (msg_controllen < sizeof (struct target_cmsghdr)) 743 goto the_end; 744 target_cmsg_addr = tswapl(target_msgh->msg_control); 745 target_cmsg = lock_user(VERIFY_WRITE, target_cmsg_addr, msg_controllen, 0); 746 if (!target_cmsg) 747 return -TARGET_EFAULT; 748 749 while (cmsg && target_cmsg) { 750 void *data = CMSG_DATA(cmsg); 751 void *target_data = TARGET_CMSG_DATA(target_cmsg); 752 753 int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr)); 754 755 space += TARGET_CMSG_SPACE(len); 756 if (space > msg_controllen) { 757 space -= TARGET_CMSG_SPACE(len); 758 gemu_log("Target cmsg overflow\n"); 759 break; 760 } 761 762 target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level); 763 target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type); 764 target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len)); 765 766 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) { 767 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type); 768 memcpy(target_data, data, len); 769 } else { 770 int *fd = (int *)data; 771 int *target_fd = (int *)target_data; 772 int i, numfds = len / sizeof(int); 773 774 for (i = 0; i < numfds; i++) 775 target_fd[i] = tswap32(fd[i]); 776 } 777 778 cmsg = CMSG_NXTHDR(msgh, cmsg); 779 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg); 780 } 781 unlock_user(target_cmsg, target_cmsg_addr, space); 782 the_end: 783 target_msgh->msg_controllen = tswapl(space); 784 return 0; 785 } 786 787 /* do_setsockopt() Must return target values and target errnos. */ 788 static abi_long do_setsockopt(int sockfd, int level, int optname, 789 abi_ulong optval_addr, socklen_t optlen) 790 { 791 abi_long ret; 792 int val; 793 794 switch(level) { 795 case SOL_TCP: 796 /* TCP options all take an 'int' value. */ 797 if (optlen < sizeof(uint32_t)) 798 return -TARGET_EINVAL; 799 800 if (get_user_u32(val, optval_addr)) 801 return -TARGET_EFAULT; 802 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val))); 803 break; 804 case SOL_IP: 805 switch(optname) { 806 case IP_TOS: 807 case IP_TTL: 808 case IP_HDRINCL: 809 case IP_ROUTER_ALERT: 810 case IP_RECVOPTS: 811 case IP_RETOPTS: 812 case IP_PKTINFO: 813 case IP_MTU_DISCOVER: 814 case IP_RECVERR: 815 case IP_RECVTOS: 816 #ifdef IP_FREEBIND 817 case IP_FREEBIND: 818 #endif 819 case IP_MULTICAST_TTL: 820 case IP_MULTICAST_LOOP: 821 val = 0; 822 if (optlen >= sizeof(uint32_t)) { 823 if (get_user_u32(val, optval_addr)) 824 return -TARGET_EFAULT; 825 } else if (optlen >= 1) { 826 if (get_user_u8(val, optval_addr)) 827 return -TARGET_EFAULT; 828 } 829 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val))); 830 break; 831 default: 832 goto unimplemented; 833 } 834 break; 835 case TARGET_SOL_SOCKET: 836 switch (optname) { 837 /* Options with 'int' argument. */ 838 case TARGET_SO_DEBUG: 839 optname = SO_DEBUG; 840 break; 841 case TARGET_SO_REUSEADDR: 842 optname = SO_REUSEADDR; 843 break; 844 case TARGET_SO_TYPE: 845 optname = SO_TYPE; 846 break; 847 case TARGET_SO_ERROR: 848 optname = SO_ERROR; 849 break; 850 case TARGET_SO_DONTROUTE: 851 optname = SO_DONTROUTE; 852 break; 853 case TARGET_SO_BROADCAST: 854 optname = SO_BROADCAST; 855 break; 856 case TARGET_SO_SNDBUF: 857 optname = SO_SNDBUF; 858 break; 859 case TARGET_SO_RCVBUF: 860 optname = SO_RCVBUF; 861 break; 862 case TARGET_SO_KEEPALIVE: 863 optname = SO_KEEPALIVE; 864 break; 865 case TARGET_SO_OOBINLINE: 866 optname = SO_OOBINLINE; 867 break; 868 case TARGET_SO_NO_CHECK: 869 optname = SO_NO_CHECK; 870 break; 871 case TARGET_SO_PRIORITY: 872 optname = SO_PRIORITY; 873 break; 874 #ifdef SO_BSDCOMPAT 875 case TARGET_SO_BSDCOMPAT: 876 optname = SO_BSDCOMPAT; 877 break; 878 #endif 879 case TARGET_SO_PASSCRED: 880 optname = SO_PASSCRED; 881 break; 882 case TARGET_SO_TIMESTAMP: 883 optname = SO_TIMESTAMP; 884 break; 885 case TARGET_SO_RCVLOWAT: 886 optname = SO_RCVLOWAT; 887 break; 888 case TARGET_SO_RCVTIMEO: 889 optname = SO_RCVTIMEO; 890 break; 891 case TARGET_SO_SNDTIMEO: 892 optname = SO_SNDTIMEO; 893 break; 894 break; 895 default: 896 goto unimplemented; 897 } 898 if (optlen < sizeof(uint32_t)) 899 return -TARGET_EINVAL; 900 901 if (get_user_u32(val, optval_addr)) 902 return -TARGET_EFAULT; 903 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val))); 904 break; 905 default: 906 unimplemented: 907 gemu_log("Unsupported setsockopt level=%d optname=%d \n", level, optname); 908 ret = -TARGET_ENOPROTOOPT; 909 } 910 return ret; 911 } 912 913 /* do_getsockopt() Must return target values and target errnos. */ 914 static abi_long do_getsockopt(int sockfd, int level, int optname, 915 abi_ulong optval_addr, abi_ulong optlen) 916 { 917 abi_long ret; 918 int len, lv, val; 919 920 switch(level) { 921 case TARGET_SOL_SOCKET: 922 level = SOL_SOCKET; 923 switch (optname) { 924 case TARGET_SO_LINGER: 925 case TARGET_SO_RCVTIMEO: 926 case TARGET_SO_SNDTIMEO: 927 case TARGET_SO_PEERCRED: 928 case TARGET_SO_PEERNAME: 929 /* These don't just return a single integer */ 930 goto unimplemented; 931 default: 932 goto int_case; 933 } 934 break; 935 case SOL_TCP: 936 /* TCP options all take an 'int' value. */ 937 int_case: 938 if (get_user_u32(len, optlen)) 939 return -TARGET_EFAULT; 940 if (len < 0) 941 return -TARGET_EINVAL; 942 lv = sizeof(int); 943 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv)); 944 if (ret < 0) 945 return ret; 946 val = tswap32(val); 947 if (len > lv) 948 len = lv; 949 if (len == 4) { 950 if (put_user_u32(val, optval_addr)) 951 return -TARGET_EFAULT; 952 } else { 953 if (put_user_u8(val, optval_addr)) 954 return -TARGET_EFAULT; 955 } 956 if (put_user_u32(len, optlen)) 957 return -TARGET_EFAULT; 958 break; 959 case SOL_IP: 960 switch(optname) { 961 case IP_TOS: 962 case IP_TTL: 963 case IP_HDRINCL: 964 case IP_ROUTER_ALERT: 965 case IP_RECVOPTS: 966 case IP_RETOPTS: 967 case IP_PKTINFO: 968 case IP_MTU_DISCOVER: 969 case IP_RECVERR: 970 case IP_RECVTOS: 971 #ifdef IP_FREEBIND 972 case IP_FREEBIND: 973 #endif 974 case IP_MULTICAST_TTL: 975 case IP_MULTICAST_LOOP: 976 if (get_user_u32(len, optlen)) 977 return -TARGET_EFAULT; 978 if (len < 0) 979 return -TARGET_EINVAL; 980 lv = sizeof(int); 981 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv)); 982 if (ret < 0) 983 return ret; 984 if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) { 985 len = 1; 986 if (put_user_u32(len, optlen) 987 || put_user_u8(val, optval_addr)) 988 return -TARGET_EFAULT; 989 } else { 990 if (len > sizeof(int)) 991 len = sizeof(int); 992 if (put_user_u32(len, optlen) 993 || put_user_u32(val, optval_addr)) 994 return -TARGET_EFAULT; 995 } 996 break; 997 default: 998 ret = -TARGET_ENOPROTOOPT; 999 break; 1000 } 1001 break; 1002 default: 1003 unimplemented: 1004 gemu_log("getsockopt level=%d optname=%d not yet supported\n", 1005 level, optname); 1006 ret = -TARGET_EOPNOTSUPP; 1007 break; 1008 } 1009 return ret; 1010 } 1011 1012 /* FIXME 1013 * lock_iovec()/unlock_iovec() have a return code of 0 for success where 1014 * other lock functions have a return code of 0 for failure. 1015 */ 1016 static abi_long lock_iovec(int type, struct iovec *vec, abi_ulong target_addr, 1017 int count, int copy) 1018 { 1019 struct target_iovec *target_vec; 1020 abi_ulong base; 1021 int i, j; 1022 1023 target_vec = lock_user(VERIFY_READ, target_addr, count * sizeof(struct target_iovec), 1); 1024 if (!target_vec) 1025 return -TARGET_EFAULT; 1026 for(i = 0;i < count; i++) { 1027 base = tswapl(target_vec[i].iov_base); 1028 vec[i].iov_len = tswapl(target_vec[i].iov_len); 1029 if (vec[i].iov_len != 0) { 1030 vec[i].iov_base = lock_user(type, base, vec[i].iov_len, copy); 1031 if (!vec[i].iov_base && vec[i].iov_len) 1032 goto fail; 1033 } else { 1034 /* zero length pointer is ignored */ 1035 vec[i].iov_base = NULL; 1036 } 1037 } 1038 unlock_user (target_vec, target_addr, 0); 1039 return 0; 1040 fail: 1041 /* failure - unwind locks */ 1042 for (j = 0; j < i; j++) { 1043 base = tswapl(target_vec[j].iov_base); 1044 unlock_user(vec[j].iov_base, base, 0); 1045 } 1046 unlock_user (target_vec, target_addr, 0); 1047 return -TARGET_EFAULT; 1048 } 1049 1050 static abi_long unlock_iovec(struct iovec *vec, abi_ulong target_addr, 1051 int count, int copy) 1052 { 1053 struct target_iovec *target_vec; 1054 abi_ulong base; 1055 int i; 1056 1057 target_vec = lock_user(VERIFY_READ, target_addr, count * sizeof(struct target_iovec), 1); 1058 if (!target_vec) 1059 return -TARGET_EFAULT; 1060 for(i = 0;i < count; i++) { 1061 base = tswapl(target_vec[i].iov_base); 1062 unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0); 1063 } 1064 unlock_user (target_vec, target_addr, 0); 1065 1066 return 0; 1067 } 1068 1069 /* do_socket() Must return target values and target errnos. */ 1070 static abi_long do_socket(int domain, int type, int protocol) 1071 { 1072 #if defined(TARGET_MIPS) 1073 switch(type) { 1074 case TARGET_SOCK_DGRAM: 1075 type = SOCK_DGRAM; 1076 break; 1077 case TARGET_SOCK_STREAM: 1078 type = SOCK_STREAM; 1079 break; 1080 case TARGET_SOCK_RAW: 1081 type = SOCK_RAW; 1082 break; 1083 case TARGET_SOCK_RDM: 1084 type = SOCK_RDM; 1085 break; 1086 case TARGET_SOCK_SEQPACKET: 1087 type = SOCK_SEQPACKET; 1088 break; 1089 case TARGET_SOCK_PACKET: 1090 type = SOCK_PACKET; 1091 break; 1092 } 1093 #endif 1094 if (domain == PF_NETLINK) 1095 return -EAFNOSUPPORT; /* do not NETLINK socket connections possible */ 1096 return get_errno(socket(domain, type, protocol)); 1097 } 1098 1099 /* do_bind() Must return target values and target errnos. */ 1100 static abi_long do_bind(int sockfd, abi_ulong target_addr, 1101 socklen_t addrlen) 1102 { 1103 void *addr = alloca(addrlen); 1104 1105 target_to_host_sockaddr(addr, target_addr, addrlen); 1106 return get_errno(bind(sockfd, addr, addrlen)); 1107 } 1108 1109 /* do_connect() Must return target values and target errnos. */ 1110 static abi_long do_connect(int sockfd, abi_ulong target_addr, 1111 socklen_t addrlen) 1112 { 1113 void *addr = alloca(addrlen); 1114 1115 target_to_host_sockaddr(addr, target_addr, addrlen); 1116 return get_errno(connect(sockfd, addr, addrlen)); 1117 } 1118 1119 /* do_sendrecvmsg() Must return target values and target errnos. */ 1120 static abi_long do_sendrecvmsg(int fd, abi_ulong target_msg, 1121 int flags, int send) 1122 { 1123 abi_long ret; 1124 struct target_msghdr *msgp; 1125 struct msghdr msg; 1126 int count; 1127 struct iovec *vec; 1128 abi_ulong target_vec; 1129 1130 /* FIXME */ 1131 if (!lock_user_struct(send ? VERIFY_READ : VERIFY_WRITE, 1132 msgp, 1133 target_msg, 1134 send ? 1 : 0)) 1135 return -TARGET_EFAULT; 1136 if (msgp->msg_name) { 1137 msg.msg_namelen = tswap32(msgp->msg_namelen); 1138 msg.msg_name = alloca(msg.msg_namelen); 1139 target_to_host_sockaddr(msg.msg_name, tswapl(msgp->msg_name), 1140 msg.msg_namelen); 1141 } else { 1142 msg.msg_name = NULL; 1143 msg.msg_namelen = 0; 1144 } 1145 msg.msg_controllen = 2 * tswapl(msgp->msg_controllen); 1146 msg.msg_control = alloca(msg.msg_controllen); 1147 msg.msg_flags = tswap32(msgp->msg_flags); 1148 1149 count = tswapl(msgp->msg_iovlen); 1150 vec = alloca(count * sizeof(struct iovec)); 1151 target_vec = tswapl(msgp->msg_iov); 1152 lock_iovec(send ? VERIFY_READ : VERIFY_WRITE, vec, target_vec, count, send); 1153 msg.msg_iovlen = count; 1154 msg.msg_iov = vec; 1155 1156 if (send) { 1157 ret = target_to_host_cmsg(&msg, msgp); 1158 if (ret == 0) 1159 ret = get_errno(sendmsg(fd, &msg, flags)); 1160 } else { 1161 ret = get_errno(recvmsg(fd, &msg, flags)); 1162 if (!is_error(ret)) 1163 ret = host_to_target_cmsg(msgp, &msg); 1164 } 1165 unlock_iovec(vec, target_vec, count, !send); 1166 unlock_user_struct(msgp, target_msg, send ? 0 : 1); 1167 return ret; 1168 } 1169 1170 /* do_accept() Must return target values and target errnos. */ 1171 static abi_long do_accept(int fd, abi_ulong target_addr, 1172 abi_ulong target_addrlen_addr) 1173 { 1174 socklen_t addrlen; 1175 void *addr; 1176 abi_long ret; 1177 1178 if (get_user_u32(addrlen, target_addrlen_addr)) 1179 return -TARGET_EFAULT; 1180 1181 addr = alloca(addrlen); 1182 1183 ret = get_errno(accept(fd, addr, &addrlen)); 1184 if (!is_error(ret)) { 1185 host_to_target_sockaddr(target_addr, addr, addrlen); 1186 if (put_user_u32(addrlen, target_addrlen_addr)) 1187 ret = -TARGET_EFAULT; 1188 } 1189 return ret; 1190 } 1191 1192 /* do_getpeername() Must return target values and target errnos. */ 1193 static abi_long do_getpeername(int fd, abi_ulong target_addr, 1194 abi_ulong target_addrlen_addr) 1195 { 1196 socklen_t addrlen; 1197 void *addr; 1198 abi_long ret; 1199 1200 if (get_user_u32(addrlen, target_addrlen_addr)) 1201 return -TARGET_EFAULT; 1202 1203 addr = alloca(addrlen); 1204 1205 ret = get_errno(getpeername(fd, addr, &addrlen)); 1206 if (!is_error(ret)) { 1207 host_to_target_sockaddr(target_addr, addr, addrlen); 1208 if (put_user_u32(addrlen, target_addrlen_addr)) 1209 ret = -TARGET_EFAULT; 1210 } 1211 return ret; 1212 } 1213 1214 /* do_getsockname() Must return target values and target errnos. */ 1215 static abi_long do_getsockname(int fd, abi_ulong target_addr, 1216 abi_ulong target_addrlen_addr) 1217 { 1218 socklen_t addrlen; 1219 void *addr; 1220 abi_long ret; 1221 1222 if (get_user_u32(addrlen, target_addrlen_addr)) 1223 return -TARGET_EFAULT; 1224 1225 addr = alloca(addrlen); 1226 1227 ret = get_errno(getsockname(fd, addr, &addrlen)); 1228 if (!is_error(ret)) { 1229 host_to_target_sockaddr(target_addr, addr, addrlen); 1230 if (put_user_u32(addrlen, target_addrlen_addr)) 1231 ret = -TARGET_EFAULT; 1232 } 1233 return ret; 1234 } 1235 1236 /* do_socketpair() Must return target values and target errnos. */ 1237 static abi_long do_socketpair(int domain, int type, int protocol, 1238 abi_ulong target_tab_addr) 1239 { 1240 int tab[2]; 1241 abi_long ret; 1242 1243 ret = get_errno(socketpair(domain, type, protocol, tab)); 1244 if (!is_error(ret)) { 1245 if (put_user_s32(tab[0], target_tab_addr) 1246 || put_user_s32(tab[1], target_tab_addr + sizeof(tab[0]))) 1247 ret = -TARGET_EFAULT; 1248 } 1249 return ret; 1250 } 1251 1252 /* do_sendto() Must return target values and target errnos. */ 1253 static abi_long do_sendto(int fd, abi_ulong msg, size_t len, int flags, 1254 abi_ulong target_addr, socklen_t addrlen) 1255 { 1256 void *addr; 1257 void *host_msg; 1258 abi_long ret; 1259 1260 host_msg = lock_user(VERIFY_READ, msg, len, 1); 1261 if (!host_msg) 1262 return -TARGET_EFAULT; 1263 if (target_addr) { 1264 addr = alloca(addrlen); 1265 target_to_host_sockaddr(addr, target_addr, addrlen); 1266 ret = get_errno(sendto(fd, host_msg, len, flags, addr, addrlen)); 1267 } else { 1268 ret = get_errno(send(fd, host_msg, len, flags)); 1269 } 1270 unlock_user(host_msg, msg, 0); 1271 return ret; 1272 } 1273 1274 /* do_recvfrom() Must return target values and target errnos. */ 1275 static abi_long do_recvfrom(int fd, abi_ulong msg, size_t len, int flags, 1276 abi_ulong target_addr, 1277 abi_ulong target_addrlen) 1278 { 1279 socklen_t addrlen; 1280 void *addr; 1281 void *host_msg; 1282 abi_long ret; 1283 1284 host_msg = lock_user(VERIFY_WRITE, msg, len, 0); 1285 if (!host_msg) 1286 return -TARGET_EFAULT; 1287 if (target_addr) { 1288 if (get_user_u32(addrlen, target_addrlen)) { 1289 ret = -TARGET_EFAULT; 1290 goto fail; 1291 } 1292 addr = alloca(addrlen); 1293 ret = get_errno(recvfrom(fd, host_msg, len, flags, addr, &addrlen)); 1294 } else { 1295 addr = NULL; /* To keep compiler quiet. */ 1296 ret = get_errno(recv(fd, host_msg, len, flags)); 1297 } 1298 if (!is_error(ret)) { 1299 if (target_addr) { 1300 host_to_target_sockaddr(target_addr, addr, addrlen); 1301 if (put_user_u32(addrlen, target_addrlen)) { 1302 ret = -TARGET_EFAULT; 1303 goto fail; 1304 } 1305 } 1306 unlock_user(host_msg, msg, len); 1307 } else { 1308 fail: 1309 unlock_user(host_msg, msg, 0); 1310 } 1311 return ret; 1312 } 1313 1314 #ifdef TARGET_NR_socketcall 1315 /* do_socketcall() Must return target values and target errnos. */ 1316 static abi_long do_socketcall(int num, abi_ulong vptr) 1317 { 1318 abi_long ret; 1319 const int n = sizeof(abi_ulong); 1320 1321 switch(num) { 1322 case SOCKOP_socket: 1323 { 1324 int domain, type, protocol; 1325 1326 if (get_user_s32(domain, vptr) 1327 || get_user_s32(type, vptr + n) 1328 || get_user_s32(protocol, vptr + 2 * n)) 1329 return -TARGET_EFAULT; 1330 1331 ret = do_socket(domain, type, protocol); 1332 } 1333 break; 1334 case SOCKOP_bind: 1335 { 1336 int sockfd; 1337 abi_ulong target_addr; 1338 socklen_t addrlen; 1339 1340 if (get_user_s32(sockfd, vptr) 1341 || get_user_ual(target_addr, vptr + n) 1342 || get_user_u32(addrlen, vptr + 2 * n)) 1343 return -TARGET_EFAULT; 1344 1345 ret = do_bind(sockfd, target_addr, addrlen); 1346 } 1347 break; 1348 case SOCKOP_connect: 1349 { 1350 int sockfd; 1351 abi_ulong target_addr; 1352 socklen_t addrlen; 1353 1354 if (get_user_s32(sockfd, vptr) 1355 || get_user_ual(target_addr, vptr + n) 1356 || get_user_u32(addrlen, vptr + 2 * n)) 1357 return -TARGET_EFAULT; 1358 1359 ret = do_connect(sockfd, target_addr, addrlen); 1360 } 1361 break; 1362 case SOCKOP_listen: 1363 { 1364 int sockfd, backlog; 1365 1366 if (get_user_s32(sockfd, vptr) 1367 || get_user_s32(backlog, vptr + n)) 1368 return -TARGET_EFAULT; 1369 1370 ret = get_errno(listen(sockfd, backlog)); 1371 } 1372 break; 1373 case SOCKOP_accept: 1374 { 1375 int sockfd; 1376 abi_ulong target_addr, target_addrlen; 1377 1378 if (get_user_s32(sockfd, vptr) 1379 || get_user_ual(target_addr, vptr + n) 1380 || get_user_u32(target_addrlen, vptr + 2 * n)) 1381 return -TARGET_EFAULT; 1382 1383 ret = do_accept(sockfd, target_addr, target_addrlen); 1384 } 1385 break; 1386 case SOCKOP_getsockname: 1387 { 1388 int sockfd; 1389 abi_ulong target_addr, target_addrlen; 1390 1391 if (get_user_s32(sockfd, vptr) 1392 || get_user_ual(target_addr, vptr + n) 1393 || get_user_u32(target_addrlen, vptr + 2 * n)) 1394 return -TARGET_EFAULT; 1395 1396 ret = do_getsockname(sockfd, target_addr, target_addrlen); 1397 } 1398 break; 1399 case SOCKOP_getpeername: 1400 { 1401 int sockfd; 1402 abi_ulong target_addr, target_addrlen; 1403 1404 if (get_user_s32(sockfd, vptr) 1405 || get_user_ual(target_addr, vptr + n) 1406 || get_user_u32(target_addrlen, vptr + 2 * n)) 1407 return -TARGET_EFAULT; 1408 1409 ret = do_getpeername(sockfd, target_addr, target_addrlen); 1410 } 1411 break; 1412 case SOCKOP_socketpair: 1413 { 1414 int domain, type, protocol; 1415 abi_ulong tab; 1416 1417 if (get_user_s32(domain, vptr) 1418 || get_user_s32(type, vptr + n) 1419 || get_user_s32(protocol, vptr + 2 * n) 1420 || get_user_ual(tab, vptr + 3 * n)) 1421 return -TARGET_EFAULT; 1422 1423 ret = do_socketpair(domain, type, protocol, tab); 1424 } 1425 break; 1426 case SOCKOP_send: 1427 { 1428 int sockfd; 1429 abi_ulong msg; 1430 size_t len; 1431 int flags; 1432 1433 if (get_user_s32(sockfd, vptr) 1434 || get_user_ual(msg, vptr + n) 1435 || get_user_ual(len, vptr + 2 * n) 1436 || get_user_s32(flags, vptr + 3 * n)) 1437 return -TARGET_EFAULT; 1438 1439 ret = do_sendto(sockfd, msg, len, flags, 0, 0); 1440 } 1441 break; 1442 case SOCKOP_recv: 1443 { 1444 int sockfd; 1445 abi_ulong msg; 1446 size_t len; 1447 int flags; 1448 1449 if (get_user_s32(sockfd, vptr) 1450 || get_user_ual(msg, vptr + n) 1451 || get_user_ual(len, vptr + 2 * n) 1452 || get_user_s32(flags, vptr + 3 * n)) 1453 return -TARGET_EFAULT; 1454 1455 ret = do_recvfrom(sockfd, msg, len, flags, 0, 0); 1456 } 1457 break; 1458 case SOCKOP_sendto: 1459 { 1460 int sockfd; 1461 abi_ulong msg; 1462 size_t len; 1463 int flags; 1464 abi_ulong addr; 1465 socklen_t addrlen; 1466 1467 if (get_user_s32(sockfd, vptr) 1468 || get_user_ual(msg, vptr + n) 1469 || get_user_ual(len, vptr + 2 * n) 1470 || get_user_s32(flags, vptr + 3 * n) 1471 || get_user_ual(addr, vptr + 4 * n) 1472 || get_user_u32(addrlen, vptr + 5 * n)) 1473 return -TARGET_EFAULT; 1474 1475 ret = do_sendto(sockfd, msg, len, flags, addr, addrlen); 1476 } 1477 break; 1478 case SOCKOP_recvfrom: 1479 { 1480 int sockfd; 1481 abi_ulong msg; 1482 size_t len; 1483 int flags; 1484 abi_ulong addr; 1485 socklen_t addrlen; 1486 1487 if (get_user_s32(sockfd, vptr) 1488 || get_user_ual(msg, vptr + n) 1489 || get_user_ual(len, vptr + 2 * n) 1490 || get_user_s32(flags, vptr + 3 * n) 1491 || get_user_ual(addr, vptr + 4 * n) 1492 || get_user_u32(addrlen, vptr + 5 * n)) 1493 return -TARGET_EFAULT; 1494 1495 ret = do_recvfrom(sockfd, msg, len, flags, addr, addrlen); 1496 } 1497 break; 1498 case SOCKOP_shutdown: 1499 { 1500 int sockfd, how; 1501 1502 if (get_user_s32(sockfd, vptr) 1503 || get_user_s32(how, vptr + n)) 1504 return -TARGET_EFAULT; 1505 1506 ret = get_errno(shutdown(sockfd, how)); 1507 } 1508 break; 1509 case SOCKOP_sendmsg: 1510 case SOCKOP_recvmsg: 1511 { 1512 int fd; 1513 abi_ulong target_msg; 1514 int flags; 1515 1516 if (get_user_s32(fd, vptr) 1517 || get_user_ual(target_msg, vptr + n) 1518 || get_user_s32(flags, vptr + 2 * n)) 1519 return -TARGET_EFAULT; 1520 1521 ret = do_sendrecvmsg(fd, target_msg, flags, 1522 (num == SOCKOP_sendmsg)); 1523 } 1524 break; 1525 case SOCKOP_setsockopt: 1526 { 1527 int sockfd; 1528 int level; 1529 int optname; 1530 abi_ulong optval; 1531 socklen_t optlen; 1532 1533 if (get_user_s32(sockfd, vptr) 1534 || get_user_s32(level, vptr + n) 1535 || get_user_s32(optname, vptr + 2 * n) 1536 || get_user_ual(optval, vptr + 3 * n) 1537 || get_user_u32(optlen, vptr + 4 * n)) 1538 return -TARGET_EFAULT; 1539 1540 ret = do_setsockopt(sockfd, level, optname, optval, optlen); 1541 } 1542 break; 1543 case SOCKOP_getsockopt: 1544 { 1545 int sockfd; 1546 int level; 1547 int optname; 1548 abi_ulong optval; 1549 socklen_t optlen; 1550 1551 if (get_user_s32(sockfd, vptr) 1552 || get_user_s32(level, vptr + n) 1553 || get_user_s32(optname, vptr + 2 * n) 1554 || get_user_ual(optval, vptr + 3 * n) 1555 || get_user_u32(optlen, vptr + 4 * n)) 1556 return -TARGET_EFAULT; 1557 1558 ret = do_getsockopt(sockfd, level, optname, optval, optlen); 1559 } 1560 break; 1561 default: 1562 gemu_log("Unsupported socketcall: %d\n", num); 1563 ret = -TARGET_ENOSYS; 1564 break; 1565 } 1566 return ret; 1567 } 1568 #endif 1569 1570 #ifdef TARGET_NR_ipc 1571 #define N_SHM_REGIONS 32 1572 1573 static struct shm_region { 1574 abi_ulong start; 1575 abi_ulong size; 1576 } shm_regions[N_SHM_REGIONS]; 1577 1578 struct target_ipc_perm 1579 { 1580 abi_long __key; 1581 abi_ulong uid; 1582 abi_ulong gid; 1583 abi_ulong cuid; 1584 abi_ulong cgid; 1585 unsigned short int mode; 1586 unsigned short int __pad1; 1587 unsigned short int __seq; 1588 unsigned short int __pad2; 1589 abi_ulong __unused1; 1590 abi_ulong __unused2; 1591 }; 1592 1593 struct target_semid_ds 1594 { 1595 struct target_ipc_perm sem_perm; 1596 abi_ulong sem_otime; 1597 abi_ulong __unused1; 1598 abi_ulong sem_ctime; 1599 abi_ulong __unused2; 1600 abi_ulong sem_nsems; 1601 abi_ulong __unused3; 1602 abi_ulong __unused4; 1603 }; 1604 1605 static inline abi_long target_to_host_ipc_perm(struct ipc_perm *host_ip, 1606 abi_ulong target_addr) 1607 { 1608 struct target_ipc_perm *target_ip; 1609 struct target_semid_ds *target_sd; 1610 1611 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1)) 1612 return -TARGET_EFAULT; 1613 target_ip=&(target_sd->sem_perm); 1614 host_ip->__key = tswapl(target_ip->__key); 1615 host_ip->uid = tswapl(target_ip->uid); 1616 host_ip->gid = tswapl(target_ip->gid); 1617 host_ip->cuid = tswapl(target_ip->cuid); 1618 host_ip->cgid = tswapl(target_ip->cgid); 1619 host_ip->mode = tswapl(target_ip->mode); 1620 unlock_user_struct(target_sd, target_addr, 0); 1621 return 0; 1622 } 1623 1624 static inline abi_long host_to_target_ipc_perm(abi_ulong target_addr, 1625 struct ipc_perm *host_ip) 1626 { 1627 struct target_ipc_perm *target_ip; 1628 struct target_semid_ds *target_sd; 1629 1630 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0)) 1631 return -TARGET_EFAULT; 1632 target_ip = &(target_sd->sem_perm); 1633 target_ip->__key = tswapl(host_ip->__key); 1634 target_ip->uid = tswapl(host_ip->uid); 1635 target_ip->gid = tswapl(host_ip->gid); 1636 target_ip->cuid = tswapl(host_ip->cuid); 1637 target_ip->cgid = tswapl(host_ip->cgid); 1638 target_ip->mode = tswapl(host_ip->mode); 1639 unlock_user_struct(target_sd, target_addr, 1); 1640 return 0; 1641 } 1642 1643 static inline abi_long target_to_host_semid_ds(struct semid_ds *host_sd, 1644 abi_ulong target_addr) 1645 { 1646 struct target_semid_ds *target_sd; 1647 1648 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1)) 1649 return -TARGET_EFAULT; 1650 target_to_host_ipc_perm(&(host_sd->sem_perm),target_addr); 1651 host_sd->sem_nsems = tswapl(target_sd->sem_nsems); 1652 host_sd->sem_otime = tswapl(target_sd->sem_otime); 1653 host_sd->sem_ctime = tswapl(target_sd->sem_ctime); 1654 unlock_user_struct(target_sd, target_addr, 0); 1655 return 0; 1656 } 1657 1658 static inline abi_long host_to_target_semid_ds(abi_ulong target_addr, 1659 struct semid_ds *host_sd) 1660 { 1661 struct target_semid_ds *target_sd; 1662 1663 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0)) 1664 return -TARGET_EFAULT; 1665 host_to_target_ipc_perm(target_addr,&(host_sd->sem_perm)); 1666 target_sd->sem_nsems = tswapl(host_sd->sem_nsems); 1667 target_sd->sem_otime = tswapl(host_sd->sem_otime); 1668 target_sd->sem_ctime = tswapl(host_sd->sem_ctime); 1669 unlock_user_struct(target_sd, target_addr, 1); 1670 return 0; 1671 } 1672 1673 union semun { 1674 int val; 1675 struct semid_ds *buf; 1676 unsigned short *array; 1677 }; 1678 1679 union target_semun { 1680 int val; 1681 abi_long buf; 1682 unsigned short int *array; 1683 }; 1684 1685 static inline abi_long target_to_host_semun(int cmd, 1686 union semun *host_su, 1687 abi_ulong target_addr, 1688 struct semid_ds *ds) 1689 { 1690 union target_semun *target_su; 1691 1692 switch( cmd ) { 1693 case IPC_STAT: 1694 case IPC_SET: 1695 if (!lock_user_struct(VERIFY_READ, target_su, target_addr, 1)) 1696 return -TARGET_EFAULT; 1697 target_to_host_semid_ds(ds,target_su->buf); 1698 host_su->buf = ds; 1699 unlock_user_struct(target_su, target_addr, 0); 1700 break; 1701 case GETVAL: 1702 case SETVAL: 1703 if (!lock_user_struct(VERIFY_READ, target_su, target_addr, 1)) 1704 return -TARGET_EFAULT; 1705 host_su->val = tswapl(target_su->val); 1706 unlock_user_struct(target_su, target_addr, 0); 1707 break; 1708 case GETALL: 1709 case SETALL: 1710 if (!lock_user_struct(VERIFY_READ, target_su, target_addr, 1)) 1711 return -TARGET_EFAULT; 1712 *host_su->array = tswap16(*target_su->array); 1713 unlock_user_struct(target_su, target_addr, 0); 1714 break; 1715 default: 1716 gemu_log("semun operation not fully supported: %d\n", (int)cmd); 1717 } 1718 return 0; 1719 } 1720 1721 static inline abi_long host_to_target_semun(int cmd, 1722 abi_ulong target_addr, 1723 union semun *host_su, 1724 struct semid_ds *ds) 1725 { 1726 union target_semun *target_su; 1727 1728 switch( cmd ) { 1729 case IPC_STAT: 1730 case IPC_SET: 1731 if (lock_user_struct(VERIFY_WRITE, target_su, target_addr, 0)) 1732 return -TARGET_EFAULT; 1733 host_to_target_semid_ds(target_su->buf,ds); 1734 unlock_user_struct(target_su, target_addr, 1); 1735 break; 1736 case GETVAL: 1737 case SETVAL: 1738 if (lock_user_struct(VERIFY_WRITE, target_su, target_addr, 0)) 1739 return -TARGET_EFAULT; 1740 target_su->val = tswapl(host_su->val); 1741 unlock_user_struct(target_su, target_addr, 1); 1742 break; 1743 case GETALL: 1744 case SETALL: 1745 if (lock_user_struct(VERIFY_WRITE, target_su, target_addr, 0)) 1746 return -TARGET_EFAULT; 1747 *target_su->array = tswap16(*host_su->array); 1748 unlock_user_struct(target_su, target_addr, 1); 1749 break; 1750 default: 1751 gemu_log("semun operation not fully supported: %d\n", (int)cmd); 1752 } 1753 return 0; 1754 } 1755 1756 static inline abi_long do_semctl(int first, int second, int third, 1757 abi_long ptr) 1758 { 1759 union semun arg; 1760 struct semid_ds dsarg; 1761 int cmd = third&0xff; 1762 abi_long ret = 0; 1763 1764 switch( cmd ) { 1765 case GETVAL: 1766 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1767 ret = get_errno(semctl(first, second, cmd, arg)); 1768 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1769 break; 1770 case SETVAL: 1771 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1772 ret = get_errno(semctl(first, second, cmd, arg)); 1773 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1774 break; 1775 case GETALL: 1776 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1777 ret = get_errno(semctl(first, second, cmd, arg)); 1778 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1779 break; 1780 case SETALL: 1781 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1782 ret = get_errno(semctl(first, second, cmd, arg)); 1783 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1784 break; 1785 case IPC_STAT: 1786 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1787 ret = get_errno(semctl(first, second, cmd, arg)); 1788 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1789 break; 1790 case IPC_SET: 1791 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1792 ret = get_errno(semctl(first, second, cmd, arg)); 1793 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1794 break; 1795 default: 1796 ret = get_errno(semctl(first, second, cmd, arg)); 1797 } 1798 1799 return ret; 1800 } 1801 1802 struct target_msqid_ds 1803 { 1804 struct target_ipc_perm msg_perm; 1805 abi_ulong msg_stime; 1806 abi_ulong __unused1; 1807 abi_ulong msg_rtime; 1808 abi_ulong __unused2; 1809 abi_ulong msg_ctime; 1810 abi_ulong __unused3; 1811 abi_ulong __msg_cbytes; 1812 abi_ulong msg_qnum; 1813 abi_ulong msg_qbytes; 1814 abi_ulong msg_lspid; 1815 abi_ulong msg_lrpid; 1816 abi_ulong __unused4; 1817 abi_ulong __unused5; 1818 }; 1819 1820 static inline abi_long target_to_host_msqid_ds(struct msqid_ds *host_md, 1821 abi_ulong target_addr) 1822 { 1823 struct target_msqid_ds *target_md; 1824 1825 if (!lock_user_struct(VERIFY_READ, target_md, target_addr, 1)) 1826 return -TARGET_EFAULT; 1827 target_to_host_ipc_perm(&(host_md->msg_perm),target_addr); 1828 host_md->msg_stime = tswapl(target_md->msg_stime); 1829 host_md->msg_rtime = tswapl(target_md->msg_rtime); 1830 host_md->msg_ctime = tswapl(target_md->msg_ctime); 1831 host_md->__msg_cbytes = tswapl(target_md->__msg_cbytes); 1832 host_md->msg_qnum = tswapl(target_md->msg_qnum); 1833 host_md->msg_qbytes = tswapl(target_md->msg_qbytes); 1834 host_md->msg_lspid = tswapl(target_md->msg_lspid); 1835 host_md->msg_lrpid = tswapl(target_md->msg_lrpid); 1836 unlock_user_struct(target_md, target_addr, 0); 1837 return 0; 1838 } 1839 1840 static inline abi_long host_to_target_msqid_ds(abi_ulong target_addr, 1841 struct msqid_ds *host_md) 1842 { 1843 struct target_msqid_ds *target_md; 1844 1845 if (!lock_user_struct(VERIFY_WRITE, target_md, target_addr, 0)) 1846 return -TARGET_EFAULT; 1847 host_to_target_ipc_perm(target_addr,&(host_md->msg_perm)); 1848 target_md->msg_stime = tswapl(host_md->msg_stime); 1849 target_md->msg_rtime = tswapl(host_md->msg_rtime); 1850 target_md->msg_ctime = tswapl(host_md->msg_ctime); 1851 target_md->__msg_cbytes = tswapl(host_md->__msg_cbytes); 1852 target_md->msg_qnum = tswapl(host_md->msg_qnum); 1853 target_md->msg_qbytes = tswapl(host_md->msg_qbytes); 1854 target_md->msg_lspid = tswapl(host_md->msg_lspid); 1855 target_md->msg_lrpid = tswapl(host_md->msg_lrpid); 1856 unlock_user_struct(target_md, target_addr, 1); 1857 return 0; 1858 } 1859 1860 static inline abi_long do_msgctl(int first, int second, abi_long ptr) 1861 { 1862 struct msqid_ds dsarg; 1863 int cmd = second&0xff; 1864 abi_long ret = 0; 1865 switch( cmd ) { 1866 case IPC_STAT: 1867 case IPC_SET: 1868 target_to_host_msqid_ds(&dsarg,ptr); 1869 ret = get_errno(msgctl(first, cmd, &dsarg)); 1870 host_to_target_msqid_ds(ptr,&dsarg); 1871 default: 1872 ret = get_errno(msgctl(first, cmd, &dsarg)); 1873 } 1874 return ret; 1875 } 1876 1877 struct target_msgbuf { 1878 abi_ulong mtype; 1879 char mtext[1]; 1880 }; 1881 1882 static inline abi_long do_msgsnd(int msqid, abi_long msgp, 1883 unsigned int msgsz, int msgflg) 1884 { 1885 struct target_msgbuf *target_mb; 1886 struct msgbuf *host_mb; 1887 abi_long ret = 0; 1888 1889 if (!lock_user_struct(VERIFY_READ, target_mb, msgp, 0)) 1890 return -TARGET_EFAULT; 1891 host_mb = malloc(msgsz+sizeof(long)); 1892 host_mb->mtype = tswapl(target_mb->mtype); 1893 memcpy(host_mb->mtext,target_mb->mtext,msgsz); 1894 ret = get_errno(msgsnd(msqid, host_mb, msgsz, msgflg)); 1895 free(host_mb); 1896 unlock_user_struct(target_mb, msgp, 0); 1897 1898 return ret; 1899 } 1900 1901 static inline abi_long do_msgrcv(int msqid, abi_long msgp, 1902 unsigned int msgsz, int msgtype, 1903 int msgflg) 1904 { 1905 struct target_msgbuf *target_mb; 1906 char *target_mtext; 1907 struct msgbuf *host_mb; 1908 abi_long ret = 0; 1909 1910 if (!lock_user_struct(VERIFY_WRITE, target_mb, msgp, 0)) 1911 return -TARGET_EFAULT; 1912 host_mb = malloc(msgsz+sizeof(long)); 1913 ret = get_errno(msgrcv(msqid, host_mb, msgsz, 1, msgflg)); 1914 if (ret > 0) { 1915 abi_ulong target_mtext_addr = msgp + sizeof(abi_ulong); 1916 target_mtext = lock_user(VERIFY_WRITE, target_mtext_addr, ret, 0); 1917 if (!target_mtext) { 1918 ret = -TARGET_EFAULT; 1919 goto end; 1920 } 1921 memcpy(target_mb->mtext, host_mb->mtext, ret); 1922 unlock_user(target_mtext, target_mtext_addr, ret); 1923 } 1924 target_mb->mtype = tswapl(host_mb->mtype); 1925 free(host_mb); 1926 1927 end: 1928 if (target_mb) 1929 unlock_user_struct(target_mb, msgp, 1); 1930 return ret; 1931 } 1932 1933 /* ??? This only works with linear mappings. */ 1934 /* do_ipc() must return target values and target errnos. */ 1935 static abi_long do_ipc(unsigned int call, int first, 1936 int second, int third, 1937 abi_long ptr, abi_long fifth) 1938 { 1939 int version; 1940 abi_long ret = 0; 1941 struct shmid_ds shm_info; 1942 int i; 1943 1944 version = call >> 16; 1945 call &= 0xffff; 1946 1947 switch (call) { 1948 case IPCOP_semop: 1949 ret = get_errno(semop(first,(struct sembuf *)g2h(ptr), second)); 1950 break; 1951 1952 case IPCOP_semget: 1953 ret = get_errno(semget(first, second, third)); 1954 break; 1955 1956 case IPCOP_semctl: 1957 ret = do_semctl(first, second, third, ptr); 1958 break; 1959 1960 case IPCOP_semtimedop: 1961 gemu_log("Unsupported ipc call: %d (version %d)\n", call, version); 1962 ret = -TARGET_ENOSYS; 1963 break; 1964 1965 case IPCOP_msgget: 1966 ret = get_errno(msgget(first, second)); 1967 break; 1968 1969 case IPCOP_msgsnd: 1970 ret = do_msgsnd(first, ptr, second, third); 1971 break; 1972 1973 case IPCOP_msgctl: 1974 ret = do_msgctl(first, second, ptr); 1975 break; 1976 1977 case IPCOP_msgrcv: 1978 { 1979 /* XXX: this code is not correct */ 1980 struct ipc_kludge 1981 { 1982 void *__unbounded msgp; 1983 long int msgtyp; 1984 }; 1985 1986 struct ipc_kludge *foo = (struct ipc_kludge *)g2h(ptr); 1987 struct msgbuf *msgp = (struct msgbuf *) foo->msgp; 1988 1989 ret = do_msgrcv(first, (long)msgp, second, 0, third); 1990 1991 } 1992 break; 1993 1994 case IPCOP_shmat: 1995 { 1996 abi_ulong raddr; 1997 void *host_addr; 1998 /* SHM_* flags are the same on all linux platforms */ 1999 host_addr = shmat(first, (void *)g2h(ptr), second); 2000 if (host_addr == (void *)-1) { 2001 ret = get_errno((long)host_addr); 2002 break; 2003 } 2004 raddr = h2g((unsigned long)host_addr); 2005 /* find out the length of the shared memory segment */ 2006 2007 ret = get_errno(shmctl(first, IPC_STAT, &shm_info)); 2008 if (is_error(ret)) { 2009 /* can't get length, bail out */ 2010 shmdt(host_addr); 2011 break; 2012 } 2013 page_set_flags(raddr, raddr + shm_info.shm_segsz, 2014 PAGE_VALID | PAGE_READ | 2015 ((second & SHM_RDONLY)? 0: PAGE_WRITE)); 2016 for (i = 0; i < N_SHM_REGIONS; ++i) { 2017 if (shm_regions[i].start == 0) { 2018 shm_regions[i].start = raddr; 2019 shm_regions[i].size = shm_info.shm_segsz; 2020 break; 2021 } 2022 } 2023 if (put_user_ual(raddr, third)) 2024 return -TARGET_EFAULT; 2025 ret = 0; 2026 } 2027 break; 2028 case IPCOP_shmdt: 2029 for (i = 0; i < N_SHM_REGIONS; ++i) { 2030 if (shm_regions[i].start == ptr) { 2031 shm_regions[i].start = 0; 2032 page_set_flags(ptr, shm_regions[i].size, 0); 2033 break; 2034 } 2035 } 2036 ret = get_errno(shmdt((void *)g2h(ptr))); 2037 break; 2038 2039 case IPCOP_shmget: 2040 /* IPC_* flag values are the same on all linux platforms */ 2041 ret = get_errno(shmget(first, second, third)); 2042 break; 2043 2044 /* IPC_* and SHM_* command values are the same on all linux platforms */ 2045 case IPCOP_shmctl: 2046 switch(second) { 2047 case IPC_RMID: 2048 case SHM_LOCK: 2049 case SHM_UNLOCK: 2050 ret = get_errno(shmctl(first, second, NULL)); 2051 break; 2052 default: 2053 goto unimplemented; 2054 } 2055 break; 2056 default: 2057 unimplemented: 2058 gemu_log("Unsupported ipc call: %d (version %d)\n", call, version); 2059 ret = -TARGET_ENOSYS; 2060 break; 2061 } 2062 return ret; 2063 } 2064 #endif 2065 2066 /* kernel structure types definitions */ 2067 #define IFNAMSIZ 16 2068 2069 #define STRUCT(name, list...) STRUCT_ ## name, 2070 #define STRUCT_SPECIAL(name) STRUCT_ ## name, 2071 enum { 2072 #include "syscall_types.h" 2073 }; 2074 #undef STRUCT 2075 #undef STRUCT_SPECIAL 2076 2077 #define STRUCT(name, list...) const argtype struct_ ## name ## _def[] = { list, TYPE_NULL }; 2078 #define STRUCT_SPECIAL(name) 2079 #include "syscall_types.h" 2080 #undef STRUCT 2081 #undef STRUCT_SPECIAL 2082 2083 typedef struct IOCTLEntry { 2084 unsigned int target_cmd; 2085 unsigned int host_cmd; 2086 const char *name; 2087 int access; 2088 const argtype arg_type[5]; 2089 } IOCTLEntry; 2090 2091 #define IOC_R 0x0001 2092 #define IOC_W 0x0002 2093 #define IOC_RW (IOC_R | IOC_W) 2094 2095 #define MAX_STRUCT_SIZE 4096 2096 2097 IOCTLEntry ioctl_entries[] = { 2098 #define IOCTL(cmd, access, types...) \ 2099 { TARGET_ ## cmd, cmd, #cmd, access, { types } }, 2100 #include "ioctls.h" 2101 { 0, 0, }, 2102 }; 2103 2104 /* ??? Implement proper locking for ioctls. */ 2105 /* do_ioctl() Must return target values and target errnos. */ 2106 static abi_long do_ioctl(int fd, abi_long cmd, abi_long arg) 2107 { 2108 const IOCTLEntry *ie; 2109 const argtype *arg_type; 2110 abi_long ret; 2111 uint8_t buf_temp[MAX_STRUCT_SIZE]; 2112 int target_size; 2113 void *argptr; 2114 2115 ie = ioctl_entries; 2116 for(;;) { 2117 if (ie->target_cmd == 0) { 2118 gemu_log("Unsupported ioctl: cmd=0x%04lx\n", (long)cmd); 2119 return -TARGET_ENOSYS; 2120 } 2121 if (ie->target_cmd == cmd) 2122 break; 2123 ie++; 2124 } 2125 arg_type = ie->arg_type; 2126 #if defined(DEBUG) 2127 gemu_log("ioctl: cmd=0x%04lx (%s)\n", (long)cmd, ie->name); 2128 #endif 2129 switch(arg_type[0]) { 2130 case TYPE_NULL: 2131 /* no argument */ 2132 ret = get_errno(ioctl(fd, ie->host_cmd)); 2133 break; 2134 case TYPE_PTRVOID: 2135 case TYPE_INT: 2136 /* int argment */ 2137 ret = get_errno(ioctl(fd, ie->host_cmd, arg)); 2138 break; 2139 case TYPE_PTR: 2140 arg_type++; 2141 target_size = thunk_type_size(arg_type, 0); 2142 switch(ie->access) { 2143 case IOC_R: 2144 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 2145 if (!is_error(ret)) { 2146 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0); 2147 if (!argptr) 2148 return -TARGET_EFAULT; 2149 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET); 2150 unlock_user(argptr, arg, target_size); 2151 } 2152 break; 2153 case IOC_W: 2154 argptr = lock_user(VERIFY_READ, arg, target_size, 1); 2155 if (!argptr) 2156 return -TARGET_EFAULT; 2157 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST); 2158 unlock_user(argptr, arg, 0); 2159 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 2160 break; 2161 default: 2162 case IOC_RW: 2163 argptr = lock_user(VERIFY_READ, arg, target_size, 1); 2164 if (!argptr) 2165 return -TARGET_EFAULT; 2166 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST); 2167 unlock_user(argptr, arg, 0); 2168 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 2169 if (!is_error(ret)) { 2170 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0); 2171 if (!argptr) 2172 return -TARGET_EFAULT; 2173 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET); 2174 unlock_user(argptr, arg, target_size); 2175 } 2176 break; 2177 } 2178 break; 2179 default: 2180 gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n", 2181 (long)cmd, arg_type[0]); 2182 ret = -TARGET_ENOSYS; 2183 break; 2184 } 2185 return ret; 2186 } 2187 2188 bitmask_transtbl iflag_tbl[] = { 2189 { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK }, 2190 { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT }, 2191 { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR }, 2192 { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK }, 2193 { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK }, 2194 { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP }, 2195 { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR }, 2196 { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR }, 2197 { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL }, 2198 { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC }, 2199 { TARGET_IXON, TARGET_IXON, IXON, IXON }, 2200 { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY }, 2201 { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF }, 2202 { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL }, 2203 { 0, 0, 0, 0 } 2204 }; 2205 2206 bitmask_transtbl oflag_tbl[] = { 2207 { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST }, 2208 { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC }, 2209 { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR }, 2210 { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL }, 2211 { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR }, 2212 { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET }, 2213 { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL }, 2214 { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL }, 2215 { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 }, 2216 { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 }, 2217 { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 }, 2218 { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 }, 2219 { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 }, 2220 { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 }, 2221 { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 }, 2222 { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 }, 2223 { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 }, 2224 { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 }, 2225 { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 }, 2226 { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 }, 2227 { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 }, 2228 { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 }, 2229 { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 }, 2230 { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 }, 2231 { 0, 0, 0, 0 } 2232 }; 2233 2234 bitmask_transtbl cflag_tbl[] = { 2235 { TARGET_CBAUD, TARGET_B0, CBAUD, B0 }, 2236 { TARGET_CBAUD, TARGET_B50, CBAUD, B50 }, 2237 { TARGET_CBAUD, TARGET_B75, CBAUD, B75 }, 2238 { TARGET_CBAUD, TARGET_B110, CBAUD, B110 }, 2239 { TARGET_CBAUD, TARGET_B134, CBAUD, B134 }, 2240 { TARGET_CBAUD, TARGET_B150, CBAUD, B150 }, 2241 { TARGET_CBAUD, TARGET_B200, CBAUD, B200 }, 2242 { TARGET_CBAUD, TARGET_B300, CBAUD, B300 }, 2243 { TARGET_CBAUD, TARGET_B600, CBAUD, B600 }, 2244 { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 }, 2245 { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 }, 2246 { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 }, 2247 { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 }, 2248 { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 }, 2249 { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 }, 2250 { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 }, 2251 { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 }, 2252 { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 }, 2253 { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 }, 2254 { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 }, 2255 { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 }, 2256 { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 }, 2257 { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 }, 2258 { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 }, 2259 { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB }, 2260 { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD }, 2261 { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB }, 2262 { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD }, 2263 { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL }, 2264 { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL }, 2265 { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS }, 2266 { 0, 0, 0, 0 } 2267 }; 2268 2269 bitmask_transtbl lflag_tbl[] = { 2270 { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG }, 2271 { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON }, 2272 { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE }, 2273 { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO }, 2274 { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE }, 2275 { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK }, 2276 { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL }, 2277 { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH }, 2278 { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP }, 2279 { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL }, 2280 { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT }, 2281 { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE }, 2282 { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO }, 2283 { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN }, 2284 { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN }, 2285 { 0, 0, 0, 0 } 2286 }; 2287 2288 static void target_to_host_termios (void *dst, const void *src) 2289 { 2290 struct host_termios *host = dst; 2291 const struct target_termios *target = src; 2292 2293 host->c_iflag = 2294 target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl); 2295 host->c_oflag = 2296 target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl); 2297 host->c_cflag = 2298 target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl); 2299 host->c_lflag = 2300 target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl); 2301 host->c_line = target->c_line; 2302 2303 host->c_cc[VINTR] = target->c_cc[TARGET_VINTR]; 2304 host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT]; 2305 host->c_cc[VERASE] = target->c_cc[TARGET_VERASE]; 2306 host->c_cc[VKILL] = target->c_cc[TARGET_VKILL]; 2307 host->c_cc[VEOF] = target->c_cc[TARGET_VEOF]; 2308 host->c_cc[VTIME] = target->c_cc[TARGET_VTIME]; 2309 host->c_cc[VMIN] = target->c_cc[TARGET_VMIN]; 2310 host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC]; 2311 host->c_cc[VSTART] = target->c_cc[TARGET_VSTART]; 2312 host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP]; 2313 host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP]; 2314 host->c_cc[VEOL] = target->c_cc[TARGET_VEOL]; 2315 host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT]; 2316 host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD]; 2317 host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE]; 2318 host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT]; 2319 host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2]; 2320 } 2321 2322 static void host_to_target_termios (void *dst, const void *src) 2323 { 2324 struct target_termios *target = dst; 2325 const struct host_termios *host = src; 2326 2327 target->c_iflag = 2328 tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl)); 2329 target->c_oflag = 2330 tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl)); 2331 target->c_cflag = 2332 tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl)); 2333 target->c_lflag = 2334 tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl)); 2335 target->c_line = host->c_line; 2336 2337 target->c_cc[TARGET_VINTR] = host->c_cc[VINTR]; 2338 target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT]; 2339 target->c_cc[TARGET_VERASE] = host->c_cc[VERASE]; 2340 target->c_cc[TARGET_VKILL] = host->c_cc[VKILL]; 2341 target->c_cc[TARGET_VEOF] = host->c_cc[VEOF]; 2342 target->c_cc[TARGET_VTIME] = host->c_cc[VTIME]; 2343 target->c_cc[TARGET_VMIN] = host->c_cc[VMIN]; 2344 target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC]; 2345 target->c_cc[TARGET_VSTART] = host->c_cc[VSTART]; 2346 target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP]; 2347 target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP]; 2348 target->c_cc[TARGET_VEOL] = host->c_cc[VEOL]; 2349 target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT]; 2350 target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD]; 2351 target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE]; 2352 target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT]; 2353 target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2]; 2354 } 2355 2356 StructEntry struct_termios_def = { 2357 .convert = { host_to_target_termios, target_to_host_termios }, 2358 .size = { sizeof(struct target_termios), sizeof(struct host_termios) }, 2359 .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) }, 2360 }; 2361 2362 static bitmask_transtbl mmap_flags_tbl[] = { 2363 { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED }, 2364 { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE }, 2365 { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED }, 2366 { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS }, 2367 { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN }, 2368 { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE }, 2369 { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE }, 2370 { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED }, 2371 { 0, 0, 0, 0 } 2372 }; 2373 2374 static bitmask_transtbl fcntl_flags_tbl[] = { 2375 { TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, }, 2376 { TARGET_O_ACCMODE, TARGET_O_RDWR, O_ACCMODE, O_RDWR, }, 2377 { TARGET_O_CREAT, TARGET_O_CREAT, O_CREAT, O_CREAT, }, 2378 { TARGET_O_EXCL, TARGET_O_EXCL, O_EXCL, O_EXCL, }, 2379 { TARGET_O_NOCTTY, TARGET_O_NOCTTY, O_NOCTTY, O_NOCTTY, }, 2380 { TARGET_O_TRUNC, TARGET_O_TRUNC, O_TRUNC, O_TRUNC, }, 2381 { TARGET_O_APPEND, TARGET_O_APPEND, O_APPEND, O_APPEND, }, 2382 { TARGET_O_NONBLOCK, TARGET_O_NONBLOCK, O_NONBLOCK, O_NONBLOCK, }, 2383 { TARGET_O_SYNC, TARGET_O_SYNC, O_SYNC, O_SYNC, }, 2384 { TARGET_FASYNC, TARGET_FASYNC, FASYNC, FASYNC, }, 2385 { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, }, 2386 { TARGET_O_NOFOLLOW, TARGET_O_NOFOLLOW, O_NOFOLLOW, O_NOFOLLOW, }, 2387 { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, }, 2388 #if defined(O_DIRECT) 2389 { TARGET_O_DIRECT, TARGET_O_DIRECT, O_DIRECT, O_DIRECT, }, 2390 #endif 2391 { 0, 0, 0, 0 } 2392 }; 2393 2394 #if defined(TARGET_I386) 2395 2396 /* NOTE: there is really one LDT for all the threads */ 2397 uint8_t *ldt_table; 2398 2399 static abi_long read_ldt(abi_ulong ptr, unsigned long bytecount) 2400 { 2401 int size; 2402 void *p; 2403 2404 if (!ldt_table) 2405 return 0; 2406 size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE; 2407 if (size > bytecount) 2408 size = bytecount; 2409 p = lock_user(VERIFY_WRITE, ptr, size, 0); 2410 if (!p) 2411 return -TARGET_EFAULT; 2412 /* ??? Should this by byteswapped? */ 2413 memcpy(p, ldt_table, size); 2414 unlock_user(p, ptr, size); 2415 return size; 2416 } 2417 2418 /* XXX: add locking support */ 2419 static abi_long write_ldt(CPUX86State *env, 2420 abi_ulong ptr, unsigned long bytecount, int oldmode) 2421 { 2422 struct target_modify_ldt_ldt_s ldt_info; 2423 struct target_modify_ldt_ldt_s *target_ldt_info; 2424 int seg_32bit, contents, read_exec_only, limit_in_pages; 2425 int seg_not_present, useable, lm; 2426 uint32_t *lp, entry_1, entry_2; 2427 2428 if (bytecount != sizeof(ldt_info)) 2429 return -TARGET_EINVAL; 2430 if (!lock_user_struct(VERIFY_READ, target_ldt_info, ptr, 1)) 2431 return -TARGET_EFAULT; 2432 ldt_info.entry_number = tswap32(target_ldt_info->entry_number); 2433 ldt_info.base_addr = tswapl(target_ldt_info->base_addr); 2434 ldt_info.limit = tswap32(target_ldt_info->limit); 2435 ldt_info.flags = tswap32(target_ldt_info->flags); 2436 unlock_user_struct(target_ldt_info, ptr, 0); 2437 2438 if (ldt_info.entry_number >= TARGET_LDT_ENTRIES) 2439 return -TARGET_EINVAL; 2440 seg_32bit = ldt_info.flags & 1; 2441 contents = (ldt_info.flags >> 1) & 3; 2442 read_exec_only = (ldt_info.flags >> 3) & 1; 2443 limit_in_pages = (ldt_info.flags >> 4) & 1; 2444 seg_not_present = (ldt_info.flags >> 5) & 1; 2445 useable = (ldt_info.flags >> 6) & 1; 2446 #ifdef TARGET_ABI32 2447 lm = 0; 2448 #else 2449 lm = (ldt_info.flags >> 7) & 1; 2450 #endif 2451 if (contents == 3) { 2452 if (oldmode) 2453 return -TARGET_EINVAL; 2454 if (seg_not_present == 0) 2455 return -TARGET_EINVAL; 2456 } 2457 /* allocate the LDT */ 2458 if (!ldt_table) { 2459 ldt_table = malloc(TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE); 2460 if (!ldt_table) 2461 return -TARGET_ENOMEM; 2462 memset(ldt_table, 0, TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE); 2463 env->ldt.base = h2g((unsigned long)ldt_table); 2464 env->ldt.limit = 0xffff; 2465 } 2466 2467 /* NOTE: same code as Linux kernel */ 2468 /* Allow LDTs to be cleared by the user. */ 2469 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) { 2470 if (oldmode || 2471 (contents == 0 && 2472 read_exec_only == 1 && 2473 seg_32bit == 0 && 2474 limit_in_pages == 0 && 2475 seg_not_present == 1 && 2476 useable == 0 )) { 2477 entry_1 = 0; 2478 entry_2 = 0; 2479 goto install; 2480 } 2481 } 2482 2483 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) | 2484 (ldt_info.limit & 0x0ffff); 2485 entry_2 = (ldt_info.base_addr & 0xff000000) | 2486 ((ldt_info.base_addr & 0x00ff0000) >> 16) | 2487 (ldt_info.limit & 0xf0000) | 2488 ((read_exec_only ^ 1) << 9) | 2489 (contents << 10) | 2490 ((seg_not_present ^ 1) << 15) | 2491 (seg_32bit << 22) | 2492 (limit_in_pages << 23) | 2493 (lm << 21) | 2494 0x7000; 2495 if (!oldmode) 2496 entry_2 |= (useable << 20); 2497 2498 /* Install the new entry ... */ 2499 install: 2500 lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3)); 2501 lp[0] = tswap32(entry_1); 2502 lp[1] = tswap32(entry_2); 2503 return 0; 2504 } 2505 2506 /* specific and weird i386 syscalls */ 2507 abi_long do_modify_ldt(CPUX86State *env, int func, abi_ulong ptr, 2508 unsigned long bytecount) 2509 { 2510 abi_long ret; 2511 2512 switch (func) { 2513 case 0: 2514 ret = read_ldt(ptr, bytecount); 2515 break; 2516 case 1: 2517 ret = write_ldt(env, ptr, bytecount, 1); 2518 break; 2519 case 0x11: 2520 ret = write_ldt(env, ptr, bytecount, 0); 2521 break; 2522 default: 2523 ret = -TARGET_ENOSYS; 2524 break; 2525 } 2526 return ret; 2527 } 2528 2529 abi_long do_set_thread_area(CPUX86State *env, abi_ulong ptr) 2530 { 2531 uint64_t *gdt_table = g2h(env->gdt.base); 2532 struct target_modify_ldt_ldt_s ldt_info; 2533 struct target_modify_ldt_ldt_s *target_ldt_info; 2534 int seg_32bit, contents, read_exec_only, limit_in_pages; 2535 int seg_not_present, useable, lm; 2536 uint32_t *lp, entry_1, entry_2; 2537 int i; 2538 2539 lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1); 2540 if (!target_ldt_info) 2541 return -TARGET_EFAULT; 2542 ldt_info.entry_number = tswap32(target_ldt_info->entry_number); 2543 ldt_info.base_addr = tswapl(target_ldt_info->base_addr); 2544 ldt_info.limit = tswap32(target_ldt_info->limit); 2545 ldt_info.flags = tswap32(target_ldt_info->flags); 2546 if (ldt_info.entry_number == -1) { 2547 for (i=TARGET_GDT_ENTRY_TLS_MIN; i<=TARGET_GDT_ENTRY_TLS_MAX; i++) { 2548 if (gdt_table[i] == 0) { 2549 ldt_info.entry_number = i; 2550 target_ldt_info->entry_number = tswap32(i); 2551 break; 2552 } 2553 } 2554 } 2555 unlock_user_struct(target_ldt_info, ptr, 1); 2556 2557 if (ldt_info.entry_number < TARGET_GDT_ENTRY_TLS_MIN || 2558 ldt_info.entry_number > TARGET_GDT_ENTRY_TLS_MAX) 2559 return -TARGET_EINVAL; 2560 seg_32bit = ldt_info.flags & 1; 2561 contents = (ldt_info.flags >> 1) & 3; 2562 read_exec_only = (ldt_info.flags >> 3) & 1; 2563 limit_in_pages = (ldt_info.flags >> 4) & 1; 2564 seg_not_present = (ldt_info.flags >> 5) & 1; 2565 useable = (ldt_info.flags >> 6) & 1; 2566 #ifdef TARGET_ABI32 2567 lm = 0; 2568 #else 2569 lm = (ldt_info.flags >> 7) & 1; 2570 #endif 2571 2572 if (contents == 3) { 2573 if (seg_not_present == 0) 2574 return -TARGET_EINVAL; 2575 } 2576 2577 /* NOTE: same code as Linux kernel */ 2578 /* Allow LDTs to be cleared by the user. */ 2579 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) { 2580 if ((contents == 0 && 2581 read_exec_only == 1 && 2582 seg_32bit == 0 && 2583 limit_in_pages == 0 && 2584 seg_not_present == 1 && 2585 useable == 0 )) { 2586 entry_1 = 0; 2587 entry_2 = 0; 2588 goto install; 2589 } 2590 } 2591 2592 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) | 2593 (ldt_info.limit & 0x0ffff); 2594 entry_2 = (ldt_info.base_addr & 0xff000000) | 2595 ((ldt_info.base_addr & 0x00ff0000) >> 16) | 2596 (ldt_info.limit & 0xf0000) | 2597 ((read_exec_only ^ 1) << 9) | 2598 (contents << 10) | 2599 ((seg_not_present ^ 1) << 15) | 2600 (seg_32bit << 22) | 2601 (limit_in_pages << 23) | 2602 (useable << 20) | 2603 (lm << 21) | 2604 0x7000; 2605 2606 /* Install the new entry ... */ 2607 install: 2608 lp = (uint32_t *)(gdt_table + ldt_info.entry_number); 2609 lp[0] = tswap32(entry_1); 2610 lp[1] = tswap32(entry_2); 2611 return 0; 2612 } 2613 2614 abi_long do_get_thread_area(CPUX86State *env, abi_ulong ptr) 2615 { 2616 struct target_modify_ldt_ldt_s *target_ldt_info; 2617 uint64_t *gdt_table = g2h(env->gdt.base); 2618 uint32_t base_addr, limit, flags; 2619 int seg_32bit, contents, read_exec_only, limit_in_pages, idx; 2620 int seg_not_present, useable, lm; 2621 uint32_t *lp, entry_1, entry_2; 2622 2623 lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1); 2624 if (!target_ldt_info) 2625 return -TARGET_EFAULT; 2626 idx = tswap32(target_ldt_info->entry_number); 2627 if (idx < TARGET_GDT_ENTRY_TLS_MIN || 2628 idx > TARGET_GDT_ENTRY_TLS_MAX) { 2629 unlock_user_struct(target_ldt_info, ptr, 1); 2630 return -TARGET_EINVAL; 2631 } 2632 lp = (uint32_t *)(gdt_table + idx); 2633 entry_1 = tswap32(lp[0]); 2634 entry_2 = tswap32(lp[1]); 2635 2636 read_exec_only = ((entry_2 >> 9) & 1) ^ 1; 2637 contents = (entry_2 >> 10) & 3; 2638 seg_not_present = ((entry_2 >> 15) & 1) ^ 1; 2639 seg_32bit = (entry_2 >> 22) & 1; 2640 limit_in_pages = (entry_2 >> 23) & 1; 2641 useable = (entry_2 >> 20) & 1; 2642 #ifdef TARGET_ABI32 2643 lm = 0; 2644 #else 2645 lm = (entry_2 >> 21) & 1; 2646 #endif 2647 flags = (seg_32bit << 0) | (contents << 1) | 2648 (read_exec_only << 3) | (limit_in_pages << 4) | 2649 (seg_not_present << 5) | (useable << 6) | (lm << 7); 2650 limit = (entry_1 & 0xffff) | (entry_2 & 0xf0000); 2651 base_addr = (entry_1 >> 16) | 2652 (entry_2 & 0xff000000) | 2653 ((entry_2 & 0xff) << 16); 2654 target_ldt_info->base_addr = tswapl(base_addr); 2655 target_ldt_info->limit = tswap32(limit); 2656 target_ldt_info->flags = tswap32(flags); 2657 unlock_user_struct(target_ldt_info, ptr, 1); 2658 return 0; 2659 } 2660 2661 #ifndef TARGET_ABI32 2662 abi_long do_arch_prctl(CPUX86State *env, int code, abi_ulong addr) 2663 { 2664 abi_long ret; 2665 abi_ulong val; 2666 int idx; 2667 2668 switch(code) { 2669 case TARGET_ARCH_SET_GS: 2670 case TARGET_ARCH_SET_FS: 2671 if (code == TARGET_ARCH_SET_GS) 2672 idx = R_GS; 2673 else 2674 idx = R_FS; 2675 cpu_x86_load_seg(env, idx, 0); 2676 env->segs[idx].base = addr; 2677 break; 2678 case TARGET_ARCH_GET_GS: 2679 case TARGET_ARCH_GET_FS: 2680 if (code == TARGET_ARCH_GET_GS) 2681 idx = R_GS; 2682 else 2683 idx = R_FS; 2684 val = env->segs[idx].base; 2685 if (put_user(val, addr, abi_ulong)) 2686 return -TARGET_EFAULT; 2687 break; 2688 default: 2689 ret = -TARGET_EINVAL; 2690 break; 2691 } 2692 return 0; 2693 } 2694 #endif 2695 2696 #endif /* defined(TARGET_I386) */ 2697 2698 /* this stack is the equivalent of the kernel stack associated with a 2699 thread/process */ 2700 #define NEW_STACK_SIZE 8192 2701 2702 static int clone_func(void *arg) 2703 { 2704 CPUState *env = arg; 2705 cpu_loop(env); 2706 /* never exits */ 2707 return 0; 2708 } 2709 2710 /* do_fork() Must return host values and target errnos (unlike most 2711 do_*() functions). */ 2712 int do_fork(CPUState *env, unsigned int flags, abi_ulong newsp) 2713 { 2714 int ret; 2715 TaskState *ts; 2716 uint8_t *new_stack; 2717 CPUState *new_env; 2718 2719 if (flags & CLONE_VM) { 2720 ts = malloc(sizeof(TaskState) + NEW_STACK_SIZE); 2721 memset(ts, 0, sizeof(TaskState)); 2722 new_stack = ts->stack; 2723 ts->used = 1; 2724 /* add in task state list */ 2725 ts->next = first_task_state; 2726 first_task_state = ts; 2727 /* we create a new CPU instance. */ 2728 new_env = cpu_copy(env); 2729 #if defined(TARGET_I386) 2730 if (!newsp) 2731 newsp = env->regs[R_ESP]; 2732 new_env->regs[R_ESP] = newsp; 2733 new_env->regs[R_EAX] = 0; 2734 #elif defined(TARGET_ARM) 2735 if (!newsp) 2736 newsp = env->regs[13]; 2737 new_env->regs[13] = newsp; 2738 new_env->regs[0] = 0; 2739 #elif defined(TARGET_SPARC) 2740 if (!newsp) 2741 newsp = env->regwptr[22]; 2742 new_env->regwptr[22] = newsp; 2743 new_env->regwptr[0] = 0; 2744 /* XXXXX */ 2745 printf ("HELPME: %s:%d\n", __FILE__, __LINE__); 2746 #elif defined(TARGET_M68K) 2747 if (!newsp) 2748 newsp = env->aregs[7]; 2749 new_env->aregs[7] = newsp; 2750 new_env->dregs[0] = 0; 2751 /* ??? is this sufficient? */ 2752 #elif defined(TARGET_MIPS) 2753 if (!newsp) 2754 newsp = env->gpr[env->current_tc][29]; 2755 new_env->gpr[env->current_tc][29] = newsp; 2756 #elif defined(TARGET_PPC) 2757 if (!newsp) 2758 newsp = env->gpr[1]; 2759 new_env->gpr[1] = newsp; 2760 { 2761 int i; 2762 for (i = 7; i < 32; i++) 2763 new_env->gpr[i] = 0; 2764 } 2765 #elif defined(TARGET_SH4) 2766 if (!newsp) 2767 newsp = env->gregs[15]; 2768 new_env->gregs[15] = newsp; 2769 /* XXXXX */ 2770 #elif defined(TARGET_ALPHA) 2771 if (!newsp) 2772 newsp = env->ir[30]; 2773 new_env->ir[30] = newsp; 2774 /* ? */ 2775 { 2776 int i; 2777 for (i = 7; i < 30; i++) 2778 new_env->ir[i] = 0; 2779 } 2780 #elif defined(TARGET_CRIS) 2781 if (!newsp) 2782 newsp = env->regs[14]; 2783 new_env->regs[14] = newsp; 2784 #else 2785 #error unsupported target CPU 2786 #endif 2787 new_env->opaque = ts; 2788 #ifdef __ia64__ 2789 ret = __clone2(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env); 2790 #else 2791 ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env); 2792 #endif 2793 } else { 2794 /* if no CLONE_VM, we consider it is a fork */ 2795 if ((flags & ~CSIGNAL) != 0) 2796 return -EINVAL; 2797 ret = fork(); 2798 } 2799 return ret; 2800 } 2801 2802 static abi_long do_fcntl(int fd, int cmd, abi_ulong arg) 2803 { 2804 struct flock fl; 2805 struct target_flock *target_fl; 2806 struct flock64 fl64; 2807 struct target_flock64 *target_fl64; 2808 abi_long ret; 2809 2810 switch(cmd) { 2811 case TARGET_F_GETLK: 2812 if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1)) 2813 return -TARGET_EFAULT; 2814 fl.l_type = tswap16(target_fl->l_type); 2815 fl.l_whence = tswap16(target_fl->l_whence); 2816 fl.l_start = tswapl(target_fl->l_start); 2817 fl.l_len = tswapl(target_fl->l_len); 2818 fl.l_pid = tswapl(target_fl->l_pid); 2819 unlock_user_struct(target_fl, arg, 0); 2820 ret = get_errno(fcntl(fd, cmd, &fl)); 2821 if (ret == 0) { 2822 if (!lock_user_struct(VERIFY_WRITE, target_fl, arg, 0)) 2823 return -TARGET_EFAULT; 2824 target_fl->l_type = tswap16(fl.l_type); 2825 target_fl->l_whence = tswap16(fl.l_whence); 2826 target_fl->l_start = tswapl(fl.l_start); 2827 target_fl->l_len = tswapl(fl.l_len); 2828 target_fl->l_pid = tswapl(fl.l_pid); 2829 unlock_user_struct(target_fl, arg, 1); 2830 } 2831 break; 2832 2833 case TARGET_F_SETLK: 2834 case TARGET_F_SETLKW: 2835 if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1)) 2836 return -TARGET_EFAULT; 2837 fl.l_type = tswap16(target_fl->l_type); 2838 fl.l_whence = tswap16(target_fl->l_whence); 2839 fl.l_start = tswapl(target_fl->l_start); 2840 fl.l_len = tswapl(target_fl->l_len); 2841 fl.l_pid = tswapl(target_fl->l_pid); 2842 unlock_user_struct(target_fl, arg, 0); 2843 ret = get_errno(fcntl(fd, cmd, &fl)); 2844 break; 2845 2846 case TARGET_F_GETLK64: 2847 if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1)) 2848 return -TARGET_EFAULT; 2849 fl64.l_type = tswap16(target_fl64->l_type) >> 1; 2850 fl64.l_whence = tswap16(target_fl64->l_whence); 2851 fl64.l_start = tswapl(target_fl64->l_start); 2852 fl64.l_len = tswapl(target_fl64->l_len); 2853 fl64.l_pid = tswap16(target_fl64->l_pid); 2854 unlock_user_struct(target_fl64, arg, 0); 2855 ret = get_errno(fcntl(fd, cmd >> 1, &fl64)); 2856 if (ret == 0) { 2857 if (!lock_user_struct(VERIFY_WRITE, target_fl64, arg, 0)) 2858 return -TARGET_EFAULT; 2859 target_fl64->l_type = tswap16(fl64.l_type) >> 1; 2860 target_fl64->l_whence = tswap16(fl64.l_whence); 2861 target_fl64->l_start = tswapl(fl64.l_start); 2862 target_fl64->l_len = tswapl(fl64.l_len); 2863 target_fl64->l_pid = tswapl(fl64.l_pid); 2864 unlock_user_struct(target_fl64, arg, 1); 2865 } 2866 break; 2867 case TARGET_F_SETLK64: 2868 case TARGET_F_SETLKW64: 2869 if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1)) 2870 return -TARGET_EFAULT; 2871 fl64.l_type = tswap16(target_fl64->l_type) >> 1; 2872 fl64.l_whence = tswap16(target_fl64->l_whence); 2873 fl64.l_start = tswapl(target_fl64->l_start); 2874 fl64.l_len = tswapl(target_fl64->l_len); 2875 fl64.l_pid = tswap16(target_fl64->l_pid); 2876 unlock_user_struct(target_fl64, arg, 0); 2877 ret = get_errno(fcntl(fd, cmd >> 1, &fl64)); 2878 break; 2879 2880 case F_GETFL: 2881 ret = get_errno(fcntl(fd, cmd, arg)); 2882 if (ret >= 0) { 2883 ret = host_to_target_bitmask(ret, fcntl_flags_tbl); 2884 } 2885 break; 2886 2887 case F_SETFL: 2888 ret = get_errno(fcntl(fd, cmd, target_to_host_bitmask(arg, fcntl_flags_tbl))); 2889 break; 2890 2891 default: 2892 ret = get_errno(fcntl(fd, cmd, arg)); 2893 break; 2894 } 2895 return ret; 2896 } 2897 2898 #ifdef USE_UID16 2899 2900 static inline int high2lowuid(int uid) 2901 { 2902 if (uid > 65535) 2903 return 65534; 2904 else 2905 return uid; 2906 } 2907 2908 static inline int high2lowgid(int gid) 2909 { 2910 if (gid > 65535) 2911 return 65534; 2912 else 2913 return gid; 2914 } 2915 2916 static inline int low2highuid(int uid) 2917 { 2918 if ((int16_t)uid == -1) 2919 return -1; 2920 else 2921 return uid; 2922 } 2923 2924 static inline int low2highgid(int gid) 2925 { 2926 if ((int16_t)gid == -1) 2927 return -1; 2928 else 2929 return gid; 2930 } 2931 2932 #endif /* USE_UID16 */ 2933 2934 void syscall_init(void) 2935 { 2936 IOCTLEntry *ie; 2937 const argtype *arg_type; 2938 int size; 2939 int i; 2940 2941 #define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def); 2942 #define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def); 2943 #include "syscall_types.h" 2944 #undef STRUCT 2945 #undef STRUCT_SPECIAL 2946 2947 /* we patch the ioctl size if necessary. We rely on the fact that 2948 no ioctl has all the bits at '1' in the size field */ 2949 ie = ioctl_entries; 2950 while (ie->target_cmd != 0) { 2951 if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) == 2952 TARGET_IOC_SIZEMASK) { 2953 arg_type = ie->arg_type; 2954 if (arg_type[0] != TYPE_PTR) { 2955 fprintf(stderr, "cannot patch size for ioctl 0x%x\n", 2956 ie->target_cmd); 2957 exit(1); 2958 } 2959 arg_type++; 2960 size = thunk_type_size(arg_type, 0); 2961 ie->target_cmd = (ie->target_cmd & 2962 ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) | 2963 (size << TARGET_IOC_SIZESHIFT); 2964 } 2965 2966 /* Build target_to_host_errno_table[] table from 2967 * host_to_target_errno_table[]. */ 2968 for (i=0; i < ERRNO_TABLE_SIZE; i++) 2969 target_to_host_errno_table[host_to_target_errno_table[i]] = i; 2970 2971 /* automatic consistency check if same arch */ 2972 #if defined(__i386__) && defined(TARGET_I386) && defined(TARGET_ABI32) 2973 if (ie->target_cmd != ie->host_cmd) { 2974 fprintf(stderr, "ERROR: ioctl: target=0x%x host=0x%x\n", 2975 ie->target_cmd, ie->host_cmd); 2976 } 2977 #endif 2978 ie++; 2979 } 2980 } 2981 2982 #if TARGET_ABI_BITS == 32 2983 static inline uint64_t target_offset64(uint32_t word0, uint32_t word1) 2984 { 2985 #ifdef TARGET_WORDS_BIG_ENDIAN 2986 return ((uint64_t)word0 << 32) | word1; 2987 #else 2988 return ((uint64_t)word1 << 32) | word0; 2989 #endif 2990 } 2991 #else /* TARGET_ABI_BITS == 32 */ 2992 static inline uint64_t target_offset64(uint64_t word0, uint64_t word1) 2993 { 2994 return word0; 2995 } 2996 #endif /* TARGET_ABI_BITS != 32 */ 2997 2998 #ifdef TARGET_NR_truncate64 2999 static inline abi_long target_truncate64(void *cpu_env, const char *arg1, 3000 abi_long arg2, 3001 abi_long arg3, 3002 abi_long arg4) 3003 { 3004 #ifdef TARGET_ARM 3005 if (((CPUARMState *)cpu_env)->eabi) 3006 { 3007 arg2 = arg3; 3008 arg3 = arg4; 3009 } 3010 #endif 3011 return get_errno(truncate64(arg1, target_offset64(arg2, arg3))); 3012 } 3013 #endif 3014 3015 #ifdef TARGET_NR_ftruncate64 3016 static inline abi_long target_ftruncate64(void *cpu_env, abi_long arg1, 3017 abi_long arg2, 3018 abi_long arg3, 3019 abi_long arg4) 3020 { 3021 #ifdef TARGET_ARM 3022 if (((CPUARMState *)cpu_env)->eabi) 3023 { 3024 arg2 = arg3; 3025 arg3 = arg4; 3026 } 3027 #endif 3028 return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3))); 3029 } 3030 #endif 3031 3032 static inline abi_long target_to_host_timespec(struct timespec *host_ts, 3033 abi_ulong target_addr) 3034 { 3035 struct target_timespec *target_ts; 3036 3037 if (!lock_user_struct(VERIFY_READ, target_ts, target_addr, 1)) 3038 return -TARGET_EFAULT; 3039 host_ts->tv_sec = tswapl(target_ts->tv_sec); 3040 host_ts->tv_nsec = tswapl(target_ts->tv_nsec); 3041 unlock_user_struct(target_ts, target_addr, 0); 3042 } 3043 3044 static inline abi_long host_to_target_timespec(abi_ulong target_addr, 3045 struct timespec *host_ts) 3046 { 3047 struct target_timespec *target_ts; 3048 3049 if (!lock_user_struct(VERIFY_WRITE, target_ts, target_addr, 0)) 3050 return -TARGET_EFAULT; 3051 target_ts->tv_sec = tswapl(host_ts->tv_sec); 3052 target_ts->tv_nsec = tswapl(host_ts->tv_nsec); 3053 unlock_user_struct(target_ts, target_addr, 1); 3054 } 3055 3056 /* do_syscall() should always have a single exit point at the end so 3057 that actions, such as logging of syscall results, can be performed. 3058 All errnos that do_syscall() returns must be -TARGET_<errcode>. */ 3059 abi_long do_syscall(void *cpu_env, int num, abi_long arg1, 3060 abi_long arg2, abi_long arg3, abi_long arg4, 3061 abi_long arg5, abi_long arg6) 3062 { 3063 abi_long ret; 3064 struct stat st; 3065 struct statfs stfs; 3066 void *p; 3067 3068 #ifdef DEBUG 3069 gemu_log("syscall %d", num); 3070 #endif 3071 if(do_strace) 3072 print_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6); 3073 3074 switch(num) { 3075 case TARGET_NR_exit: 3076 #ifdef HAVE_GPROF 3077 _mcleanup(); 3078 #endif 3079 gdb_exit(cpu_env, arg1); 3080 /* XXX: should free thread stack and CPU env */ 3081 _exit(arg1); 3082 ret = 0; /* avoid warning */ 3083 break; 3084 case TARGET_NR_read: 3085 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0))) 3086 goto efault; 3087 ret = get_errno(read(arg1, p, arg3)); 3088 unlock_user(p, arg2, ret); 3089 break; 3090 case TARGET_NR_write: 3091 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1))) 3092 goto efault; 3093 ret = get_errno(write(arg1, p, arg3)); 3094 unlock_user(p, arg2, 0); 3095 break; 3096 case TARGET_NR_open: 3097 if (!(p = lock_user_string(arg1))) 3098 goto efault; 3099 ret = get_errno(open(path(p), 3100 target_to_host_bitmask(arg2, fcntl_flags_tbl), 3101 arg3)); 3102 unlock_user(p, arg1, 0); 3103 break; 3104 #if defined(TARGET_NR_openat) && defined(__NR_openat) 3105 case TARGET_NR_openat: 3106 if (!(p = lock_user_string(arg2))) 3107 goto efault; 3108 ret = get_errno(sys_openat(arg1, 3109 path(p), 3110 target_to_host_bitmask(arg3, fcntl_flags_tbl), 3111 arg4)); 3112 unlock_user(p, arg2, 0); 3113 break; 3114 #endif 3115 case TARGET_NR_close: 3116 ret = get_errno(close(arg1)); 3117 break; 3118 case TARGET_NR_brk: 3119 ret = do_brk(arg1); 3120 break; 3121 case TARGET_NR_fork: 3122 ret = get_errno(do_fork(cpu_env, SIGCHLD, 0)); 3123 break; 3124 #ifdef TARGET_NR_waitpid 3125 case TARGET_NR_waitpid: 3126 { 3127 int status; 3128 ret = get_errno(waitpid(arg1, &status, arg3)); 3129 if (!is_error(ret) && arg2 3130 && put_user_s32(status, arg2)) 3131 goto efault; 3132 } 3133 break; 3134 #endif 3135 #ifdef TARGET_NR_creat /* not on alpha */ 3136 case TARGET_NR_creat: 3137 if (!(p = lock_user_string(arg1))) 3138 goto efault; 3139 ret = get_errno(creat(p, arg2)); 3140 unlock_user(p, arg1, 0); 3141 break; 3142 #endif 3143 case TARGET_NR_link: 3144 { 3145 void * p2; 3146 p = lock_user_string(arg1); 3147 p2 = lock_user_string(arg2); 3148 if (!p || !p2) 3149 ret = -TARGET_EFAULT; 3150 else 3151 ret = get_errno(link(p, p2)); 3152 unlock_user(p2, arg2, 0); 3153 unlock_user(p, arg1, 0); 3154 } 3155 break; 3156 #if defined(TARGET_NR_linkat) && defined(__NR_linkat) 3157 case TARGET_NR_linkat: 3158 { 3159 void * p2 = NULL; 3160 if (!arg2 || !arg4) 3161 goto efault; 3162 p = lock_user_string(arg2); 3163 p2 = lock_user_string(arg4); 3164 if (!p || !p2) 3165 ret = -TARGET_EFAULT; 3166 else 3167 ret = get_errno(sys_linkat(arg1, p, arg3, p2, arg5)); 3168 unlock_user(p, arg2, 0); 3169 unlock_user(p2, arg4, 0); 3170 } 3171 break; 3172 #endif 3173 case TARGET_NR_unlink: 3174 if (!(p = lock_user_string(arg1))) 3175 goto efault; 3176 ret = get_errno(unlink(p)); 3177 unlock_user(p, arg1, 0); 3178 break; 3179 #if defined(TARGET_NR_unlinkat) && defined(__NR_unlinkat) 3180 case TARGET_NR_unlinkat: 3181 if (!(p = lock_user_string(arg2))) 3182 goto efault; 3183 ret = get_errno(sys_unlinkat(arg1, p, arg3)); 3184 unlock_user(p, arg2, 0); 3185 break; 3186 #endif 3187 case TARGET_NR_execve: 3188 { 3189 char **argp, **envp; 3190 int argc, envc; 3191 abi_ulong gp; 3192 abi_ulong guest_argp; 3193 abi_ulong guest_envp; 3194 abi_ulong addr; 3195 char **q; 3196 3197 argc = 0; 3198 guest_argp = arg2; 3199 for (gp = guest_argp; ; gp += sizeof(abi_ulong)) { 3200 if (get_user_ual(addr, gp)) 3201 goto efault; 3202 if (!addr) 3203 break; 3204 argc++; 3205 } 3206 envc = 0; 3207 guest_envp = arg3; 3208 for (gp = guest_envp; ; gp += sizeof(abi_ulong)) { 3209 if (get_user_ual(addr, gp)) 3210 goto efault; 3211 if (!addr) 3212 break; 3213 envc++; 3214 } 3215 3216 argp = alloca((argc + 1) * sizeof(void *)); 3217 envp = alloca((envc + 1) * sizeof(void *)); 3218 3219 for (gp = guest_argp, q = argp; ; 3220 gp += sizeof(abi_ulong), q++) { 3221 if (get_user_ual(addr, gp)) 3222 goto execve_efault; 3223 if (!addr) 3224 break; 3225 if (!(*q = lock_user_string(addr))) 3226 goto execve_efault; 3227 } 3228 *q = NULL; 3229 3230 for (gp = guest_envp, q = envp; ; 3231 gp += sizeof(abi_ulong), q++) { 3232 if (get_user_ual(addr, gp)) 3233 goto execve_efault; 3234 if (!addr) 3235 break; 3236 if (!(*q = lock_user_string(addr))) 3237 goto execve_efault; 3238 } 3239 *q = NULL; 3240 3241 if (!(p = lock_user_string(arg1))) 3242 goto execve_efault; 3243 ret = get_errno(execve(p, argp, envp)); 3244 unlock_user(p, arg1, 0); 3245 3246 goto execve_end; 3247 3248 execve_efault: 3249 ret = -TARGET_EFAULT; 3250 3251 execve_end: 3252 for (gp = guest_argp, q = argp; *q; 3253 gp += sizeof(abi_ulong), q++) { 3254 if (get_user_ual(addr, gp) 3255 || !addr) 3256 break; 3257 unlock_user(*q, addr, 0); 3258 } 3259 for (gp = guest_envp, q = envp; *q; 3260 gp += sizeof(abi_ulong), q++) { 3261 if (get_user_ual(addr, gp) 3262 || !addr) 3263 break; 3264 unlock_user(*q, addr, 0); 3265 } 3266 } 3267 break; 3268 case TARGET_NR_chdir: 3269 if (!(p = lock_user_string(arg1))) 3270 goto efault; 3271 ret = get_errno(chdir(p)); 3272 unlock_user(p, arg1, 0); 3273 break; 3274 #ifdef TARGET_NR_time 3275 case TARGET_NR_time: 3276 { 3277 time_t host_time; 3278 ret = get_errno(time(&host_time)); 3279 if (!is_error(ret) 3280 && arg1 3281 && put_user_sal(host_time, arg1)) 3282 goto efault; 3283 } 3284 break; 3285 #endif 3286 case TARGET_NR_mknod: 3287 if (!(p = lock_user_string(arg1))) 3288 goto efault; 3289 ret = get_errno(mknod(p, arg2, arg3)); 3290 unlock_user(p, arg1, 0); 3291 break; 3292 #if defined(TARGET_NR_mknodat) && defined(__NR_mknodat) 3293 case TARGET_NR_mknodat: 3294 if (!(p = lock_user_string(arg2))) 3295 goto efault; 3296 ret = get_errno(sys_mknodat(arg1, p, arg3, arg4)); 3297 unlock_user(p, arg2, 0); 3298 break; 3299 #endif 3300 case TARGET_NR_chmod: 3301 if (!(p = lock_user_string(arg1))) 3302 goto efault; 3303 ret = get_errno(chmod(p, arg2)); 3304 unlock_user(p, arg1, 0); 3305 break; 3306 #ifdef TARGET_NR_break 3307 case TARGET_NR_break: 3308 goto unimplemented; 3309 #endif 3310 #ifdef TARGET_NR_oldstat 3311 case TARGET_NR_oldstat: 3312 goto unimplemented; 3313 #endif 3314 case TARGET_NR_lseek: 3315 ret = get_errno(lseek(arg1, arg2, arg3)); 3316 break; 3317 #ifdef TARGET_NR_getxpid 3318 case TARGET_NR_getxpid: 3319 #else 3320 case TARGET_NR_getpid: 3321 #endif 3322 ret = get_errno(getpid()); 3323 break; 3324 case TARGET_NR_mount: 3325 { 3326 /* need to look at the data field */ 3327 void *p2, *p3; 3328 p = lock_user_string(arg1); 3329 p2 = lock_user_string(arg2); 3330 p3 = lock_user_string(arg3); 3331 if (!p || !p2 || !p3) 3332 ret = -TARGET_EFAULT; 3333 else 3334 /* FIXME - arg5 should be locked, but it isn't clear how to 3335 * do that since it's not guaranteed to be a NULL-terminated 3336 * string. 3337 */ 3338 ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, g2h(arg5))); 3339 unlock_user(p, arg1, 0); 3340 unlock_user(p2, arg2, 0); 3341 unlock_user(p3, arg3, 0); 3342 break; 3343 } 3344 #ifdef TARGET_NR_umount 3345 case TARGET_NR_umount: 3346 if (!(p = lock_user_string(arg1))) 3347 goto efault; 3348 ret = get_errno(umount(p)); 3349 unlock_user(p, arg1, 0); 3350 break; 3351 #endif 3352 #ifdef TARGET_NR_stime /* not on alpha */ 3353 case TARGET_NR_stime: 3354 { 3355 time_t host_time; 3356 if (get_user_sal(host_time, arg1)) 3357 goto efault; 3358 ret = get_errno(stime(&host_time)); 3359 } 3360 break; 3361 #endif 3362 case TARGET_NR_ptrace: 3363 goto unimplemented; 3364 #ifdef TARGET_NR_alarm /* not on alpha */ 3365 case TARGET_NR_alarm: 3366 ret = alarm(arg1); 3367 break; 3368 #endif 3369 #ifdef TARGET_NR_oldfstat 3370 case TARGET_NR_oldfstat: 3371 goto unimplemented; 3372 #endif 3373 #ifdef TARGET_NR_pause /* not on alpha */ 3374 case TARGET_NR_pause: 3375 ret = get_errno(pause()); 3376 break; 3377 #endif 3378 #ifdef TARGET_NR_utime 3379 case TARGET_NR_utime: 3380 { 3381 struct utimbuf tbuf, *host_tbuf; 3382 struct target_utimbuf *target_tbuf; 3383 if (arg2) { 3384 if (!lock_user_struct(VERIFY_READ, target_tbuf, arg2, 1)) 3385 goto efault; 3386 tbuf.actime = tswapl(target_tbuf->actime); 3387 tbuf.modtime = tswapl(target_tbuf->modtime); 3388 unlock_user_struct(target_tbuf, arg2, 0); 3389 host_tbuf = &tbuf; 3390 } else { 3391 host_tbuf = NULL; 3392 } 3393 if (!(p = lock_user_string(arg1))) 3394 goto efault; 3395 ret = get_errno(utime(p, host_tbuf)); 3396 unlock_user(p, arg1, 0); 3397 } 3398 break; 3399 #endif 3400 case TARGET_NR_utimes: 3401 { 3402 struct timeval *tvp, tv[2]; 3403 if (arg2) { 3404 if (copy_from_user_timeval(&tv[0], arg2) 3405 || copy_from_user_timeval(&tv[1], 3406 arg2 + sizeof(struct target_timeval))) 3407 goto efault; 3408 tvp = tv; 3409 } else { 3410 tvp = NULL; 3411 } 3412 if (!(p = lock_user_string(arg1))) 3413 goto efault; 3414 ret = get_errno(utimes(p, tvp)); 3415 unlock_user(p, arg1, 0); 3416 } 3417 break; 3418 #ifdef TARGET_NR_stty 3419 case TARGET_NR_stty: 3420 goto unimplemented; 3421 #endif 3422 #ifdef TARGET_NR_gtty 3423 case TARGET_NR_gtty: 3424 goto unimplemented; 3425 #endif 3426 case TARGET_NR_access: 3427 if (!(p = lock_user_string(arg1))) 3428 goto efault; 3429 ret = get_errno(access(p, arg2)); 3430 unlock_user(p, arg1, 0); 3431 break; 3432 #if defined(TARGET_NR_faccessat) && defined(__NR_faccessat) 3433 case TARGET_NR_faccessat: 3434 if (!(p = lock_user_string(arg2))) 3435 goto efault; 3436 ret = get_errno(sys_faccessat(arg1, p, arg3, arg4)); 3437 unlock_user(p, arg2, 0); 3438 break; 3439 #endif 3440 #ifdef TARGET_NR_nice /* not on alpha */ 3441 case TARGET_NR_nice: 3442 ret = get_errno(nice(arg1)); 3443 break; 3444 #endif 3445 #ifdef TARGET_NR_ftime 3446 case TARGET_NR_ftime: 3447 goto unimplemented; 3448 #endif 3449 case TARGET_NR_sync: 3450 sync(); 3451 ret = 0; 3452 break; 3453 case TARGET_NR_kill: 3454 ret = get_errno(kill(arg1, arg2)); 3455 break; 3456 case TARGET_NR_rename: 3457 { 3458 void *p2; 3459 p = lock_user_string(arg1); 3460 p2 = lock_user_string(arg2); 3461 if (!p || !p2) 3462 ret = -TARGET_EFAULT; 3463 else 3464 ret = get_errno(rename(p, p2)); 3465 unlock_user(p2, arg2, 0); 3466 unlock_user(p, arg1, 0); 3467 } 3468 break; 3469 #if defined(TARGET_NR_renameat) && defined(__NR_renameat) 3470 case TARGET_NR_renameat: 3471 { 3472 void *p2; 3473 p = lock_user_string(arg2); 3474 p2 = lock_user_string(arg4); 3475 if (!p || !p2) 3476 ret = -TARGET_EFAULT; 3477 else 3478 ret = get_errno(sys_renameat(arg1, p, arg3, p2)); 3479 unlock_user(p2, arg4, 0); 3480 unlock_user(p, arg2, 0); 3481 } 3482 break; 3483 #endif 3484 case TARGET_NR_mkdir: 3485 if (!(p = lock_user_string(arg1))) 3486 goto efault; 3487 ret = get_errno(mkdir(p, arg2)); 3488 unlock_user(p, arg1, 0); 3489 break; 3490 #if defined(TARGET_NR_mkdirat) && defined(__NR_mkdirat) 3491 case TARGET_NR_mkdirat: 3492 if (!(p = lock_user_string(arg2))) 3493 goto efault; 3494 ret = get_errno(sys_mkdirat(arg1, p, arg3)); 3495 unlock_user(p, arg2, 0); 3496 break; 3497 #endif 3498 case TARGET_NR_rmdir: 3499 if (!(p = lock_user_string(arg1))) 3500 goto efault; 3501 ret = get_errno(rmdir(p)); 3502 unlock_user(p, arg1, 0); 3503 break; 3504 case TARGET_NR_dup: 3505 ret = get_errno(dup(arg1)); 3506 break; 3507 case TARGET_NR_pipe: 3508 { 3509 int host_pipe[2]; 3510 ret = get_errno(pipe(host_pipe)); 3511 if (!is_error(ret)) { 3512 #if defined(TARGET_MIPS) 3513 CPUMIPSState *env = (CPUMIPSState*)cpu_env; 3514 env->gpr[env->current_tc][3] = host_pipe[1]; 3515 ret = host_pipe[0]; 3516 #elif defined(TARGET_SH4) 3517 ((CPUSH4State*)cpu_env)->gregs[1] = host_pipe[1]; 3518 ret = host_pipe[0]; 3519 #else 3520 if (put_user_s32(host_pipe[0], arg1) 3521 || put_user_s32(host_pipe[1], arg1 + sizeof(host_pipe[0]))) 3522 goto efault; 3523 #endif 3524 } 3525 } 3526 break; 3527 case TARGET_NR_times: 3528 { 3529 struct target_tms *tmsp; 3530 struct tms tms; 3531 ret = get_errno(times(&tms)); 3532 if (arg1) { 3533 tmsp = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_tms), 0); 3534 if (!tmsp) 3535 goto efault; 3536 tmsp->tms_utime = tswapl(host_to_target_clock_t(tms.tms_utime)); 3537 tmsp->tms_stime = tswapl(host_to_target_clock_t(tms.tms_stime)); 3538 tmsp->tms_cutime = tswapl(host_to_target_clock_t(tms.tms_cutime)); 3539 tmsp->tms_cstime = tswapl(host_to_target_clock_t(tms.tms_cstime)); 3540 } 3541 if (!is_error(ret)) 3542 ret = host_to_target_clock_t(ret); 3543 } 3544 break; 3545 #ifdef TARGET_NR_prof 3546 case TARGET_NR_prof: 3547 goto unimplemented; 3548 #endif 3549 #ifdef TARGET_NR_signal 3550 case TARGET_NR_signal: 3551 goto unimplemented; 3552 #endif 3553 case TARGET_NR_acct: 3554 if (!(p = lock_user_string(arg1))) 3555 goto efault; 3556 ret = get_errno(acct(path(p))); 3557 unlock_user(p, arg1, 0); 3558 break; 3559 #ifdef TARGET_NR_umount2 /* not on alpha */ 3560 case TARGET_NR_umount2: 3561 if (!(p = lock_user_string(arg1))) 3562 goto efault; 3563 ret = get_errno(umount2(p, arg2)); 3564 unlock_user(p, arg1, 0); 3565 break; 3566 #endif 3567 #ifdef TARGET_NR_lock 3568 case TARGET_NR_lock: 3569 goto unimplemented; 3570 #endif 3571 case TARGET_NR_ioctl: 3572 ret = do_ioctl(arg1, arg2, arg3); 3573 break; 3574 case TARGET_NR_fcntl: 3575 ret = do_fcntl(arg1, arg2, arg3); 3576 break; 3577 #ifdef TARGET_NR_mpx 3578 case TARGET_NR_mpx: 3579 goto unimplemented; 3580 #endif 3581 case TARGET_NR_setpgid: 3582 ret = get_errno(setpgid(arg1, arg2)); 3583 break; 3584 #ifdef TARGET_NR_ulimit 3585 case TARGET_NR_ulimit: 3586 goto unimplemented; 3587 #endif 3588 #ifdef TARGET_NR_oldolduname 3589 case TARGET_NR_oldolduname: 3590 goto unimplemented; 3591 #endif 3592 case TARGET_NR_umask: 3593 ret = get_errno(umask(arg1)); 3594 break; 3595 case TARGET_NR_chroot: 3596 if (!(p = lock_user_string(arg1))) 3597 goto efault; 3598 ret = get_errno(chroot(p)); 3599 unlock_user(p, arg1, 0); 3600 break; 3601 case TARGET_NR_ustat: 3602 goto unimplemented; 3603 case TARGET_NR_dup2: 3604 ret = get_errno(dup2(arg1, arg2)); 3605 break; 3606 #ifdef TARGET_NR_getppid /* not on alpha */ 3607 case TARGET_NR_getppid: 3608 ret = get_errno(getppid()); 3609 break; 3610 #endif 3611 case TARGET_NR_getpgrp: 3612 ret = get_errno(getpgrp()); 3613 break; 3614 case TARGET_NR_setsid: 3615 ret = get_errno(setsid()); 3616 break; 3617 #ifdef TARGET_NR_sigaction 3618 case TARGET_NR_sigaction: 3619 { 3620 #if !defined(TARGET_MIPS) 3621 struct target_old_sigaction *old_act; 3622 struct target_sigaction act, oact, *pact; 3623 if (arg2) { 3624 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1)) 3625 goto efault; 3626 act._sa_handler = old_act->_sa_handler; 3627 target_siginitset(&act.sa_mask, old_act->sa_mask); 3628 act.sa_flags = old_act->sa_flags; 3629 act.sa_restorer = old_act->sa_restorer; 3630 unlock_user_struct(old_act, arg2, 0); 3631 pact = &act; 3632 } else { 3633 pact = NULL; 3634 } 3635 ret = get_errno(do_sigaction(arg1, pact, &oact)); 3636 if (!is_error(ret) && arg3) { 3637 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0)) 3638 goto efault; 3639 old_act->_sa_handler = oact._sa_handler; 3640 old_act->sa_mask = oact.sa_mask.sig[0]; 3641 old_act->sa_flags = oact.sa_flags; 3642 old_act->sa_restorer = oact.sa_restorer; 3643 unlock_user_struct(old_act, arg3, 1); 3644 } 3645 #else 3646 struct target_sigaction act, oact, *pact, *old_act; 3647 3648 if (arg2) { 3649 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1)) 3650 goto efault; 3651 act._sa_handler = old_act->_sa_handler; 3652 target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]); 3653 act.sa_flags = old_act->sa_flags; 3654 unlock_user_struct(old_act, arg2, 0); 3655 pact = &act; 3656 } else { 3657 pact = NULL; 3658 } 3659 3660 ret = get_errno(do_sigaction(arg1, pact, &oact)); 3661 3662 if (!is_error(ret) && arg3) { 3663 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0)) 3664 goto efault; 3665 old_act->_sa_handler = oact._sa_handler; 3666 old_act->sa_flags = oact.sa_flags; 3667 old_act->sa_mask.sig[0] = oact.sa_mask.sig[0]; 3668 old_act->sa_mask.sig[1] = 0; 3669 old_act->sa_mask.sig[2] = 0; 3670 old_act->sa_mask.sig[3] = 0; 3671 unlock_user_struct(old_act, arg3, 1); 3672 } 3673 #endif 3674 } 3675 break; 3676 #endif 3677 case TARGET_NR_rt_sigaction: 3678 { 3679 struct target_sigaction *act; 3680 struct target_sigaction *oact; 3681 3682 if (arg2) { 3683 if (!lock_user_struct(VERIFY_READ, act, arg2, 1)) 3684 goto efault; 3685 } else 3686 act = NULL; 3687 if (arg3) { 3688 if (!lock_user_struct(VERIFY_WRITE, oact, arg3, 0)) { 3689 ret = -TARGET_EFAULT; 3690 goto rt_sigaction_fail; 3691 } 3692 } else 3693 oact = NULL; 3694 ret = get_errno(do_sigaction(arg1, act, oact)); 3695 rt_sigaction_fail: 3696 if (act) 3697 unlock_user_struct(act, arg2, 0); 3698 if (oact) 3699 unlock_user_struct(oact, arg3, 1); 3700 } 3701 break; 3702 #ifdef TARGET_NR_sgetmask /* not on alpha */ 3703 case TARGET_NR_sgetmask: 3704 { 3705 sigset_t cur_set; 3706 abi_ulong target_set; 3707 sigprocmask(0, NULL, &cur_set); 3708 host_to_target_old_sigset(&target_set, &cur_set); 3709 ret = target_set; 3710 } 3711 break; 3712 #endif 3713 #ifdef TARGET_NR_ssetmask /* not on alpha */ 3714 case TARGET_NR_ssetmask: 3715 { 3716 sigset_t set, oset, cur_set; 3717 abi_ulong target_set = arg1; 3718 sigprocmask(0, NULL, &cur_set); 3719 target_to_host_old_sigset(&set, &target_set); 3720 sigorset(&set, &set, &cur_set); 3721 sigprocmask(SIG_SETMASK, &set, &oset); 3722 host_to_target_old_sigset(&target_set, &oset); 3723 ret = target_set; 3724 } 3725 break; 3726 #endif 3727 #ifdef TARGET_NR_sigprocmask 3728 case TARGET_NR_sigprocmask: 3729 { 3730 int how = arg1; 3731 sigset_t set, oldset, *set_ptr; 3732 3733 if (arg2) { 3734 switch(how) { 3735 case TARGET_SIG_BLOCK: 3736 how = SIG_BLOCK; 3737 break; 3738 case TARGET_SIG_UNBLOCK: 3739 how = SIG_UNBLOCK; 3740 break; 3741 case TARGET_SIG_SETMASK: 3742 how = SIG_SETMASK; 3743 break; 3744 default: 3745 ret = -TARGET_EINVAL; 3746 goto fail; 3747 } 3748 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1))) 3749 goto efault; 3750 target_to_host_old_sigset(&set, p); 3751 unlock_user(p, arg2, 0); 3752 set_ptr = &set; 3753 } else { 3754 how = 0; 3755 set_ptr = NULL; 3756 } 3757 ret = get_errno(sigprocmask(arg1, set_ptr, &oldset)); 3758 if (!is_error(ret) && arg3) { 3759 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0))) 3760 goto efault; 3761 host_to_target_old_sigset(p, &oldset); 3762 unlock_user(p, arg3, sizeof(target_sigset_t)); 3763 } 3764 } 3765 break; 3766 #endif 3767 case TARGET_NR_rt_sigprocmask: 3768 { 3769 int how = arg1; 3770 sigset_t set, oldset, *set_ptr; 3771 3772 if (arg2) { 3773 switch(how) { 3774 case TARGET_SIG_BLOCK: 3775 how = SIG_BLOCK; 3776 break; 3777 case TARGET_SIG_UNBLOCK: 3778 how = SIG_UNBLOCK; 3779 break; 3780 case TARGET_SIG_SETMASK: 3781 how = SIG_SETMASK; 3782 break; 3783 default: 3784 ret = -TARGET_EINVAL; 3785 goto fail; 3786 } 3787 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1))) 3788 goto efault; 3789 target_to_host_sigset(&set, p); 3790 unlock_user(p, arg2, 0); 3791 set_ptr = &set; 3792 } else { 3793 how = 0; 3794 set_ptr = NULL; 3795 } 3796 ret = get_errno(sigprocmask(how, set_ptr, &oldset)); 3797 if (!is_error(ret) && arg3) { 3798 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0))) 3799 goto efault; 3800 host_to_target_sigset(p, &oldset); 3801 unlock_user(p, arg3, sizeof(target_sigset_t)); 3802 } 3803 } 3804 break; 3805 #ifdef TARGET_NR_sigpending 3806 case TARGET_NR_sigpending: 3807 { 3808 sigset_t set; 3809 ret = get_errno(sigpending(&set)); 3810 if (!is_error(ret)) { 3811 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0))) 3812 goto efault; 3813 host_to_target_old_sigset(p, &set); 3814 unlock_user(p, arg1, sizeof(target_sigset_t)); 3815 } 3816 } 3817 break; 3818 #endif 3819 case TARGET_NR_rt_sigpending: 3820 { 3821 sigset_t set; 3822 ret = get_errno(sigpending(&set)); 3823 if (!is_error(ret)) { 3824 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0))) 3825 goto efault; 3826 host_to_target_sigset(p, &set); 3827 unlock_user(p, arg1, sizeof(target_sigset_t)); 3828 } 3829 } 3830 break; 3831 #ifdef TARGET_NR_sigsuspend 3832 case TARGET_NR_sigsuspend: 3833 { 3834 sigset_t set; 3835 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1))) 3836 goto efault; 3837 target_to_host_old_sigset(&set, p); 3838 unlock_user(p, arg1, 0); 3839 ret = get_errno(sigsuspend(&set)); 3840 } 3841 break; 3842 #endif 3843 case TARGET_NR_rt_sigsuspend: 3844 { 3845 sigset_t set; 3846 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1))) 3847 goto efault; 3848 target_to_host_sigset(&set, p); 3849 unlock_user(p, arg1, 0); 3850 ret = get_errno(sigsuspend(&set)); 3851 } 3852 break; 3853 case TARGET_NR_rt_sigtimedwait: 3854 { 3855 sigset_t set; 3856 struct timespec uts, *puts; 3857 siginfo_t uinfo; 3858 3859 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1))) 3860 goto efault; 3861 target_to_host_sigset(&set, p); 3862 unlock_user(p, arg1, 0); 3863 if (arg3) { 3864 puts = &uts; 3865 target_to_host_timespec(puts, arg3); 3866 } else { 3867 puts = NULL; 3868 } 3869 ret = get_errno(sigtimedwait(&set, &uinfo, puts)); 3870 if (!is_error(ret) && arg2) { 3871 if (!(p = lock_user(VERIFY_WRITE, arg2, sizeof(target_sigset_t), 0))) 3872 goto efault; 3873 host_to_target_siginfo(p, &uinfo); 3874 unlock_user(p, arg2, sizeof(target_sigset_t)); 3875 } 3876 } 3877 break; 3878 case TARGET_NR_rt_sigqueueinfo: 3879 { 3880 siginfo_t uinfo; 3881 if (!(p = lock_user(VERIFY_READ, arg3, sizeof(target_sigset_t), 1))) 3882 goto efault; 3883 target_to_host_siginfo(&uinfo, p); 3884 unlock_user(p, arg1, 0); 3885 ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo)); 3886 } 3887 break; 3888 #ifdef TARGET_NR_sigreturn 3889 case TARGET_NR_sigreturn: 3890 /* NOTE: ret is eax, so not transcoding must be done */ 3891 ret = do_sigreturn(cpu_env); 3892 break; 3893 #endif 3894 case TARGET_NR_rt_sigreturn: 3895 /* NOTE: ret is eax, so not transcoding must be done */ 3896 ret = do_rt_sigreturn(cpu_env); 3897 break; 3898 case TARGET_NR_sethostname: 3899 if (!(p = lock_user_string(arg1))) 3900 goto efault; 3901 ret = get_errno(sethostname(p, arg2)); 3902 unlock_user(p, arg1, 0); 3903 break; 3904 case TARGET_NR_setrlimit: 3905 { 3906 /* XXX: convert resource ? */ 3907 int resource = arg1; 3908 struct target_rlimit *target_rlim; 3909 struct rlimit rlim; 3910 if (!lock_user_struct(VERIFY_READ, target_rlim, arg2, 1)) 3911 goto efault; 3912 rlim.rlim_cur = tswapl(target_rlim->rlim_cur); 3913 rlim.rlim_max = tswapl(target_rlim->rlim_max); 3914 unlock_user_struct(target_rlim, arg2, 0); 3915 ret = get_errno(setrlimit(resource, &rlim)); 3916 } 3917 break; 3918 case TARGET_NR_getrlimit: 3919 { 3920 /* XXX: convert resource ? */ 3921 int resource = arg1; 3922 struct target_rlimit *target_rlim; 3923 struct rlimit rlim; 3924 3925 ret = get_errno(getrlimit(resource, &rlim)); 3926 if (!is_error(ret)) { 3927 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0)) 3928 goto efault; 3929 rlim.rlim_cur = tswapl(target_rlim->rlim_cur); 3930 rlim.rlim_max = tswapl(target_rlim->rlim_max); 3931 unlock_user_struct(target_rlim, arg2, 1); 3932 } 3933 } 3934 break; 3935 case TARGET_NR_getrusage: 3936 { 3937 struct rusage rusage; 3938 ret = get_errno(getrusage(arg1, &rusage)); 3939 if (!is_error(ret)) { 3940 host_to_target_rusage(arg2, &rusage); 3941 } 3942 } 3943 break; 3944 case TARGET_NR_gettimeofday: 3945 { 3946 struct timeval tv; 3947 ret = get_errno(gettimeofday(&tv, NULL)); 3948 if (!is_error(ret)) { 3949 if (copy_to_user_timeval(arg1, &tv)) 3950 goto efault; 3951 } 3952 } 3953 break; 3954 case TARGET_NR_settimeofday: 3955 { 3956 struct timeval tv; 3957 if (copy_from_user_timeval(&tv, arg1)) 3958 goto efault; 3959 ret = get_errno(settimeofday(&tv, NULL)); 3960 } 3961 break; 3962 #ifdef TARGET_NR_select 3963 case TARGET_NR_select: 3964 { 3965 struct target_sel_arg_struct *sel; 3966 abi_ulong inp, outp, exp, tvp; 3967 long nsel; 3968 3969 if (!lock_user_struct(VERIFY_READ, sel, arg1, 1)) 3970 goto efault; 3971 nsel = tswapl(sel->n); 3972 inp = tswapl(sel->inp); 3973 outp = tswapl(sel->outp); 3974 exp = tswapl(sel->exp); 3975 tvp = tswapl(sel->tvp); 3976 unlock_user_struct(sel, arg1, 0); 3977 ret = do_select(nsel, inp, outp, exp, tvp); 3978 } 3979 break; 3980 #endif 3981 case TARGET_NR_symlink: 3982 { 3983 void *p2; 3984 p = lock_user_string(arg1); 3985 p2 = lock_user_string(arg2); 3986 if (!p || !p2) 3987 ret = -TARGET_EFAULT; 3988 else 3989 ret = get_errno(symlink(p, p2)); 3990 unlock_user(p2, arg2, 0); 3991 unlock_user(p, arg1, 0); 3992 } 3993 break; 3994 #if defined(TARGET_NR_symlinkat) && defined(__NR_symlinkat) 3995 case TARGET_NR_symlinkat: 3996 { 3997 void *p2; 3998 p = lock_user_string(arg1); 3999 p2 = lock_user_string(arg3); 4000 if (!p || !p2) 4001 ret = -TARGET_EFAULT; 4002 else 4003 ret = get_errno(sys_symlinkat(p, arg2, p2)); 4004 unlock_user(p2, arg3, 0); 4005 unlock_user(p, arg1, 0); 4006 } 4007 break; 4008 #endif 4009 #ifdef TARGET_NR_oldlstat 4010 case TARGET_NR_oldlstat: 4011 goto unimplemented; 4012 #endif 4013 case TARGET_NR_readlink: 4014 { 4015 void *p2; 4016 p = lock_user_string(arg1); 4017 p2 = lock_user(VERIFY_WRITE, arg2, arg3, 0); 4018 if (!p || !p2) 4019 ret = -TARGET_EFAULT; 4020 else 4021 ret = get_errno(readlink(path(p), p2, arg3)); 4022 unlock_user(p2, arg2, ret); 4023 unlock_user(p, arg1, 0); 4024 } 4025 break; 4026 #if defined(TARGET_NR_readlinkat) && defined(__NR_readlinkat) 4027 case TARGET_NR_readlinkat: 4028 { 4029 void *p2; 4030 p = lock_user_string(arg2); 4031 p2 = lock_user(VERIFY_WRITE, arg3, arg4, 0); 4032 if (!p || !p2) 4033 ret = -TARGET_EFAULT; 4034 else 4035 ret = get_errno(sys_readlinkat(arg1, path(p), p2, arg4)); 4036 unlock_user(p2, arg3, ret); 4037 unlock_user(p, arg2, 0); 4038 } 4039 break; 4040 #endif 4041 #ifdef TARGET_NR_uselib 4042 case TARGET_NR_uselib: 4043 goto unimplemented; 4044 #endif 4045 #ifdef TARGET_NR_swapon 4046 case TARGET_NR_swapon: 4047 if (!(p = lock_user_string(arg1))) 4048 goto efault; 4049 ret = get_errno(swapon(p, arg2)); 4050 unlock_user(p, arg1, 0); 4051 break; 4052 #endif 4053 case TARGET_NR_reboot: 4054 goto unimplemented; 4055 #ifdef TARGET_NR_readdir 4056 case TARGET_NR_readdir: 4057 goto unimplemented; 4058 #endif 4059 #ifdef TARGET_NR_mmap 4060 case TARGET_NR_mmap: 4061 #if (defined(TARGET_I386) && defined(TARGET_ABI32)) || defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_CRIS) 4062 { 4063 abi_ulong *v; 4064 abi_ulong v1, v2, v3, v4, v5, v6; 4065 if (!(v = lock_user(VERIFY_READ, arg1, 6 * sizeof(abi_ulong), 1))) 4066 goto efault; 4067 v1 = tswapl(v[0]); 4068 v2 = tswapl(v[1]); 4069 v3 = tswapl(v[2]); 4070 v4 = tswapl(v[3]); 4071 v5 = tswapl(v[4]); 4072 v6 = tswapl(v[5]); 4073 unlock_user(v, arg1, 0); 4074 ret = get_errno(target_mmap(v1, v2, v3, 4075 target_to_host_bitmask(v4, mmap_flags_tbl), 4076 v5, v6)); 4077 } 4078 #else 4079 ret = get_errno(target_mmap(arg1, arg2, arg3, 4080 target_to_host_bitmask(arg4, mmap_flags_tbl), 4081 arg5, 4082 arg6)); 4083 #endif 4084 break; 4085 #endif 4086 #ifdef TARGET_NR_mmap2 4087 case TARGET_NR_mmap2: 4088 #ifndef MMAP_SHIFT 4089 #define MMAP_SHIFT 12 4090 #endif 4091 ret = get_errno(target_mmap(arg1, arg2, arg3, 4092 target_to_host_bitmask(arg4, mmap_flags_tbl), 4093 arg5, 4094 arg6 << MMAP_SHIFT)); 4095 break; 4096 #endif 4097 case TARGET_NR_munmap: 4098 ret = get_errno(target_munmap(arg1, arg2)); 4099 break; 4100 case TARGET_NR_mprotect: 4101 ret = get_errno(target_mprotect(arg1, arg2, arg3)); 4102 break; 4103 #ifdef TARGET_NR_mremap 4104 case TARGET_NR_mremap: 4105 ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5)); 4106 break; 4107 #endif 4108 /* ??? msync/mlock/munlock are broken for softmmu. */ 4109 #ifdef TARGET_NR_msync 4110 case TARGET_NR_msync: 4111 ret = get_errno(msync(g2h(arg1), arg2, arg3)); 4112 break; 4113 #endif 4114 #ifdef TARGET_NR_mlock 4115 case TARGET_NR_mlock: 4116 ret = get_errno(mlock(g2h(arg1), arg2)); 4117 break; 4118 #endif 4119 #ifdef TARGET_NR_munlock 4120 case TARGET_NR_munlock: 4121 ret = get_errno(munlock(g2h(arg1), arg2)); 4122 break; 4123 #endif 4124 #ifdef TARGET_NR_mlockall 4125 case TARGET_NR_mlockall: 4126 ret = get_errno(mlockall(arg1)); 4127 break; 4128 #endif 4129 #ifdef TARGET_NR_munlockall 4130 case TARGET_NR_munlockall: 4131 ret = get_errno(munlockall()); 4132 break; 4133 #endif 4134 case TARGET_NR_truncate: 4135 if (!(p = lock_user_string(arg1))) 4136 goto efault; 4137 ret = get_errno(truncate(p, arg2)); 4138 unlock_user(p, arg1, 0); 4139 break; 4140 case TARGET_NR_ftruncate: 4141 ret = get_errno(ftruncate(arg1, arg2)); 4142 break; 4143 case TARGET_NR_fchmod: 4144 ret = get_errno(fchmod(arg1, arg2)); 4145 break; 4146 #if defined(TARGET_NR_fchmodat) && defined(__NR_fchmodat) 4147 case TARGET_NR_fchmodat: 4148 if (!(p = lock_user_string(arg2))) 4149 goto efault; 4150 ret = get_errno(sys_fchmodat(arg1, p, arg3, arg4)); 4151 unlock_user(p, arg2, 0); 4152 break; 4153 #endif 4154 case TARGET_NR_getpriority: 4155 /* libc does special remapping of the return value of 4156 * sys_getpriority() so it's just easiest to call 4157 * sys_getpriority() directly rather than through libc. */ 4158 ret = sys_getpriority(arg1, arg2); 4159 break; 4160 case TARGET_NR_setpriority: 4161 ret = get_errno(setpriority(arg1, arg2, arg3)); 4162 break; 4163 #ifdef TARGET_NR_profil 4164 case TARGET_NR_profil: 4165 goto unimplemented; 4166 #endif 4167 case TARGET_NR_statfs: 4168 if (!(p = lock_user_string(arg1))) 4169 goto efault; 4170 ret = get_errno(statfs(path(p), &stfs)); 4171 unlock_user(p, arg1, 0); 4172 convert_statfs: 4173 if (!is_error(ret)) { 4174 struct target_statfs *target_stfs; 4175 4176 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg2, 0)) 4177 goto efault; 4178 __put_user(stfs.f_type, &target_stfs->f_type); 4179 __put_user(stfs.f_bsize, &target_stfs->f_bsize); 4180 __put_user(stfs.f_blocks, &target_stfs->f_blocks); 4181 __put_user(stfs.f_bfree, &target_stfs->f_bfree); 4182 __put_user(stfs.f_bavail, &target_stfs->f_bavail); 4183 __put_user(stfs.f_files, &target_stfs->f_files); 4184 __put_user(stfs.f_ffree, &target_stfs->f_ffree); 4185 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]); 4186 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]); 4187 __put_user(stfs.f_namelen, &target_stfs->f_namelen); 4188 unlock_user_struct(target_stfs, arg2, 1); 4189 } 4190 break; 4191 case TARGET_NR_fstatfs: 4192 ret = get_errno(fstatfs(arg1, &stfs)); 4193 goto convert_statfs; 4194 #ifdef TARGET_NR_statfs64 4195 case TARGET_NR_statfs64: 4196 if (!(p = lock_user_string(arg1))) 4197 goto efault; 4198 ret = get_errno(statfs(path(p), &stfs)); 4199 unlock_user(p, arg1, 0); 4200 convert_statfs64: 4201 if (!is_error(ret)) { 4202 struct target_statfs64 *target_stfs; 4203 4204 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg3, 0)) 4205 goto efault; 4206 __put_user(stfs.f_type, &target_stfs->f_type); 4207 __put_user(stfs.f_bsize, &target_stfs->f_bsize); 4208 __put_user(stfs.f_blocks, &target_stfs->f_blocks); 4209 __put_user(stfs.f_bfree, &target_stfs->f_bfree); 4210 __put_user(stfs.f_bavail, &target_stfs->f_bavail); 4211 __put_user(stfs.f_files, &target_stfs->f_files); 4212 __put_user(stfs.f_ffree, &target_stfs->f_ffree); 4213 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]); 4214 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]); 4215 __put_user(stfs.f_namelen, &target_stfs->f_namelen); 4216 unlock_user_struct(target_stfs, arg3, 1); 4217 } 4218 break; 4219 case TARGET_NR_fstatfs64: 4220 ret = get_errno(fstatfs(arg1, &stfs)); 4221 goto convert_statfs64; 4222 #endif 4223 #ifdef TARGET_NR_ioperm 4224 case TARGET_NR_ioperm: 4225 goto unimplemented; 4226 #endif 4227 #ifdef TARGET_NR_socketcall 4228 case TARGET_NR_socketcall: 4229 ret = do_socketcall(arg1, arg2); 4230 break; 4231 #endif 4232 #ifdef TARGET_NR_accept 4233 case TARGET_NR_accept: 4234 ret = do_accept(arg1, arg2, arg3); 4235 break; 4236 #endif 4237 #ifdef TARGET_NR_bind 4238 case TARGET_NR_bind: 4239 ret = do_bind(arg1, arg2, arg3); 4240 break; 4241 #endif 4242 #ifdef TARGET_NR_connect 4243 case TARGET_NR_connect: 4244 ret = do_connect(arg1, arg2, arg3); 4245 break; 4246 #endif 4247 #ifdef TARGET_NR_getpeername 4248 case TARGET_NR_getpeername: 4249 ret = do_getpeername(arg1, arg2, arg3); 4250 break; 4251 #endif 4252 #ifdef TARGET_NR_getsockname 4253 case TARGET_NR_getsockname: 4254 ret = do_getsockname(arg1, arg2, arg3); 4255 break; 4256 #endif 4257 #ifdef TARGET_NR_getsockopt 4258 case TARGET_NR_getsockopt: 4259 ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5); 4260 break; 4261 #endif 4262 #ifdef TARGET_NR_listen 4263 case TARGET_NR_listen: 4264 ret = get_errno(listen(arg1, arg2)); 4265 break; 4266 #endif 4267 #ifdef TARGET_NR_recv 4268 case TARGET_NR_recv: 4269 ret = do_recvfrom(arg1, arg2, arg3, arg4, 0, 0); 4270 break; 4271 #endif 4272 #ifdef TARGET_NR_recvfrom 4273 case TARGET_NR_recvfrom: 4274 ret = do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6); 4275 break; 4276 #endif 4277 #ifdef TARGET_NR_recvmsg 4278 case TARGET_NR_recvmsg: 4279 ret = do_sendrecvmsg(arg1, arg2, arg3, 0); 4280 break; 4281 #endif 4282 #ifdef TARGET_NR_send 4283 case TARGET_NR_send: 4284 ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0); 4285 break; 4286 #endif 4287 #ifdef TARGET_NR_sendmsg 4288 case TARGET_NR_sendmsg: 4289 ret = do_sendrecvmsg(arg1, arg2, arg3, 1); 4290 break; 4291 #endif 4292 #ifdef TARGET_NR_sendto 4293 case TARGET_NR_sendto: 4294 ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6); 4295 break; 4296 #endif 4297 #ifdef TARGET_NR_shutdown 4298 case TARGET_NR_shutdown: 4299 ret = get_errno(shutdown(arg1, arg2)); 4300 break; 4301 #endif 4302 #ifdef TARGET_NR_socket 4303 case TARGET_NR_socket: 4304 ret = do_socket(arg1, arg2, arg3); 4305 break; 4306 #endif 4307 #ifdef TARGET_NR_socketpair 4308 case TARGET_NR_socketpair: 4309 ret = do_socketpair(arg1, arg2, arg3, arg4); 4310 break; 4311 #endif 4312 #ifdef TARGET_NR_setsockopt 4313 case TARGET_NR_setsockopt: 4314 ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5); 4315 break; 4316 #endif 4317 4318 case TARGET_NR_syslog: 4319 if (!(p = lock_user_string(arg2))) 4320 goto efault; 4321 ret = get_errno(sys_syslog((int)arg1, p, (int)arg3)); 4322 unlock_user(p, arg2, 0); 4323 break; 4324 4325 case TARGET_NR_setitimer: 4326 { 4327 struct itimerval value, ovalue, *pvalue; 4328 4329 if (arg2) { 4330 pvalue = &value; 4331 if (copy_from_user_timeval(&pvalue->it_interval, arg2) 4332 || copy_from_user_timeval(&pvalue->it_value, 4333 arg2 + sizeof(struct target_timeval))) 4334 goto efault; 4335 } else { 4336 pvalue = NULL; 4337 } 4338 ret = get_errno(setitimer(arg1, pvalue, &ovalue)); 4339 if (!is_error(ret) && arg3) { 4340 if (copy_to_user_timeval(arg3, 4341 &ovalue.it_interval) 4342 || copy_to_user_timeval(arg3 + sizeof(struct target_timeval), 4343 &ovalue.it_value)) 4344 goto efault; 4345 } 4346 } 4347 break; 4348 case TARGET_NR_getitimer: 4349 { 4350 struct itimerval value; 4351 4352 ret = get_errno(getitimer(arg1, &value)); 4353 if (!is_error(ret) && arg2) { 4354 if (copy_to_user_timeval(arg2, 4355 &value.it_interval) 4356 || copy_to_user_timeval(arg2 + sizeof(struct target_timeval), 4357 &value.it_value)) 4358 goto efault; 4359 } 4360 } 4361 break; 4362 case TARGET_NR_stat: 4363 if (!(p = lock_user_string(arg1))) 4364 goto efault; 4365 ret = get_errno(stat(path(p), &st)); 4366 unlock_user(p, arg1, 0); 4367 goto do_stat; 4368 case TARGET_NR_lstat: 4369 if (!(p = lock_user_string(arg1))) 4370 goto efault; 4371 ret = get_errno(lstat(path(p), &st)); 4372 unlock_user(p, arg1, 0); 4373 goto do_stat; 4374 case TARGET_NR_fstat: 4375 { 4376 ret = get_errno(fstat(arg1, &st)); 4377 do_stat: 4378 if (!is_error(ret)) { 4379 struct target_stat *target_st; 4380 4381 if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0)) 4382 goto efault; 4383 __put_user(st.st_dev, &target_st->st_dev); 4384 __put_user(st.st_ino, &target_st->st_ino); 4385 __put_user(st.st_mode, &target_st->st_mode); 4386 __put_user(st.st_uid, &target_st->st_uid); 4387 __put_user(st.st_gid, &target_st->st_gid); 4388 __put_user(st.st_nlink, &target_st->st_nlink); 4389 __put_user(st.st_rdev, &target_st->st_rdev); 4390 __put_user(st.st_size, &target_st->st_size); 4391 __put_user(st.st_blksize, &target_st->st_blksize); 4392 __put_user(st.st_blocks, &target_st->st_blocks); 4393 __put_user(st.st_atime, &target_st->target_st_atime); 4394 __put_user(st.st_mtime, &target_st->target_st_mtime); 4395 __put_user(st.st_ctime, &target_st->target_st_ctime); 4396 unlock_user_struct(target_st, arg2, 1); 4397 } 4398 } 4399 break; 4400 #ifdef TARGET_NR_olduname 4401 case TARGET_NR_olduname: 4402 goto unimplemented; 4403 #endif 4404 #ifdef TARGET_NR_iopl 4405 case TARGET_NR_iopl: 4406 goto unimplemented; 4407 #endif 4408 case TARGET_NR_vhangup: 4409 ret = get_errno(vhangup()); 4410 break; 4411 #ifdef TARGET_NR_idle 4412 case TARGET_NR_idle: 4413 goto unimplemented; 4414 #endif 4415 #ifdef TARGET_NR_syscall 4416 case TARGET_NR_syscall: 4417 ret = do_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,0); 4418 break; 4419 #endif 4420 case TARGET_NR_wait4: 4421 { 4422 int status; 4423 abi_long status_ptr = arg2; 4424 struct rusage rusage, *rusage_ptr; 4425 abi_ulong target_rusage = arg4; 4426 if (target_rusage) 4427 rusage_ptr = &rusage; 4428 else 4429 rusage_ptr = NULL; 4430 ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr)); 4431 if (!is_error(ret)) { 4432 if (status_ptr) { 4433 if (put_user_s32(status, status_ptr)) 4434 goto efault; 4435 } 4436 if (target_rusage) 4437 host_to_target_rusage(target_rusage, &rusage); 4438 } 4439 } 4440 break; 4441 #ifdef TARGET_NR_swapoff 4442 case TARGET_NR_swapoff: 4443 if (!(p = lock_user_string(arg1))) 4444 goto efault; 4445 ret = get_errno(swapoff(p)); 4446 unlock_user(p, arg1, 0); 4447 break; 4448 #endif 4449 case TARGET_NR_sysinfo: 4450 { 4451 struct target_sysinfo *target_value; 4452 struct sysinfo value; 4453 ret = get_errno(sysinfo(&value)); 4454 if (!is_error(ret) && arg1) 4455 { 4456 if (!lock_user_struct(VERIFY_WRITE, target_value, arg1, 0)) 4457 goto efault; 4458 __put_user(value.uptime, &target_value->uptime); 4459 __put_user(value.loads[0], &target_value->loads[0]); 4460 __put_user(value.loads[1], &target_value->loads[1]); 4461 __put_user(value.loads[2], &target_value->loads[2]); 4462 __put_user(value.totalram, &target_value->totalram); 4463 __put_user(value.freeram, &target_value->freeram); 4464 __put_user(value.sharedram, &target_value->sharedram); 4465 __put_user(value.bufferram, &target_value->bufferram); 4466 __put_user(value.totalswap, &target_value->totalswap); 4467 __put_user(value.freeswap, &target_value->freeswap); 4468 __put_user(value.procs, &target_value->procs); 4469 __put_user(value.totalhigh, &target_value->totalhigh); 4470 __put_user(value.freehigh, &target_value->freehigh); 4471 __put_user(value.mem_unit, &target_value->mem_unit); 4472 unlock_user_struct(target_value, arg1, 1); 4473 } 4474 } 4475 break; 4476 #ifdef TARGET_NR_ipc 4477 case TARGET_NR_ipc: 4478 ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6); 4479 break; 4480 #endif 4481 case TARGET_NR_fsync: 4482 ret = get_errno(fsync(arg1)); 4483 break; 4484 case TARGET_NR_clone: 4485 ret = get_errno(do_fork(cpu_env, arg1, arg2)); 4486 break; 4487 #ifdef __NR_exit_group 4488 /* new thread calls */ 4489 case TARGET_NR_exit_group: 4490 gdb_exit(cpu_env, arg1); 4491 ret = get_errno(exit_group(arg1)); 4492 break; 4493 #endif 4494 case TARGET_NR_setdomainname: 4495 if (!(p = lock_user_string(arg1))) 4496 goto efault; 4497 ret = get_errno(setdomainname(p, arg2)); 4498 unlock_user(p, arg1, 0); 4499 break; 4500 case TARGET_NR_uname: 4501 /* no need to transcode because we use the linux syscall */ 4502 { 4503 struct new_utsname * buf; 4504 4505 if (!lock_user_struct(VERIFY_WRITE, buf, arg1, 0)) 4506 goto efault; 4507 ret = get_errno(sys_uname(buf)); 4508 if (!is_error(ret)) { 4509 /* Overrite the native machine name with whatever is being 4510 emulated. */ 4511 strcpy (buf->machine, UNAME_MACHINE); 4512 /* Allow the user to override the reported release. */ 4513 if (qemu_uname_release && *qemu_uname_release) 4514 strcpy (buf->release, qemu_uname_release); 4515 } 4516 unlock_user_struct(buf, arg1, 1); 4517 } 4518 break; 4519 #ifdef TARGET_I386 4520 case TARGET_NR_modify_ldt: 4521 ret = do_modify_ldt(cpu_env, arg1, arg2, arg3); 4522 break; 4523 #if !defined(TARGET_X86_64) 4524 case TARGET_NR_vm86old: 4525 goto unimplemented; 4526 case TARGET_NR_vm86: 4527 ret = do_vm86(cpu_env, arg1, arg2); 4528 break; 4529 #endif 4530 #endif 4531 case TARGET_NR_adjtimex: 4532 goto unimplemented; 4533 #ifdef TARGET_NR_create_module 4534 case TARGET_NR_create_module: 4535 #endif 4536 case TARGET_NR_init_module: 4537 case TARGET_NR_delete_module: 4538 #ifdef TARGET_NR_get_kernel_syms 4539 case TARGET_NR_get_kernel_syms: 4540 #endif 4541 goto unimplemented; 4542 case TARGET_NR_quotactl: 4543 goto unimplemented; 4544 case TARGET_NR_getpgid: 4545 ret = get_errno(getpgid(arg1)); 4546 break; 4547 case TARGET_NR_fchdir: 4548 ret = get_errno(fchdir(arg1)); 4549 break; 4550 #ifdef TARGET_NR_bdflush /* not on x86_64 */ 4551 case TARGET_NR_bdflush: 4552 goto unimplemented; 4553 #endif 4554 #ifdef TARGET_NR_sysfs 4555 case TARGET_NR_sysfs: 4556 goto unimplemented; 4557 #endif 4558 case TARGET_NR_personality: 4559 ret = get_errno(personality(arg1)); 4560 break; 4561 #ifdef TARGET_NR_afs_syscall 4562 case TARGET_NR_afs_syscall: 4563 goto unimplemented; 4564 #endif 4565 #ifdef TARGET_NR__llseek /* Not on alpha */ 4566 case TARGET_NR__llseek: 4567 { 4568 #if defined (__x86_64__) 4569 ret = get_errno(lseek(arg1, ((uint64_t )arg2 << 32) | arg3, arg5)); 4570 if (put_user_s64(ret, arg4)) 4571 goto efault; 4572 #else 4573 int64_t res; 4574 ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5)); 4575 if (put_user_s64(res, arg4)) 4576 goto efault; 4577 #endif 4578 } 4579 break; 4580 #endif 4581 case TARGET_NR_getdents: 4582 #if TARGET_ABI_BITS != 32 4583 goto unimplemented; 4584 #elif TARGET_ABI_BITS == 32 && HOST_LONG_BITS == 64 4585 { 4586 struct target_dirent *target_dirp; 4587 struct dirent *dirp; 4588 abi_long count = arg3; 4589 4590 dirp = malloc(count); 4591 if (!dirp) { 4592 ret = -TARGET_ENOMEM; 4593 goto fail; 4594 } 4595 4596 ret = get_errno(sys_getdents(arg1, dirp, count)); 4597 if (!is_error(ret)) { 4598 struct dirent *de; 4599 struct target_dirent *tde; 4600 int len = ret; 4601 int reclen, treclen; 4602 int count1, tnamelen; 4603 4604 count1 = 0; 4605 de = dirp; 4606 if (!(target_dirp = lock_user(VERIFY_WRITE, arg2, count, 0))) 4607 goto efault; 4608 tde = target_dirp; 4609 while (len > 0) { 4610 reclen = de->d_reclen; 4611 treclen = reclen - (2 * (sizeof(long) - sizeof(abi_long))); 4612 tde->d_reclen = tswap16(treclen); 4613 tde->d_ino = tswapl(de->d_ino); 4614 tde->d_off = tswapl(de->d_off); 4615 tnamelen = treclen - (2 * sizeof(abi_long) + 2); 4616 if (tnamelen > 256) 4617 tnamelen = 256; 4618 /* XXX: may not be correct */ 4619 strncpy(tde->d_name, de->d_name, tnamelen); 4620 de = (struct dirent *)((char *)de + reclen); 4621 len -= reclen; 4622 tde = (struct target_dirent *)((char *)tde + treclen); 4623 count1 += treclen; 4624 } 4625 ret = count1; 4626 unlock_user(target_dirp, arg2, ret); 4627 } 4628 free(dirp); 4629 } 4630 #else 4631 { 4632 struct dirent *dirp; 4633 abi_long count = arg3; 4634 4635 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0))) 4636 goto efault; 4637 ret = get_errno(sys_getdents(arg1, dirp, count)); 4638 if (!is_error(ret)) { 4639 struct dirent *de; 4640 int len = ret; 4641 int reclen; 4642 de = dirp; 4643 while (len > 0) { 4644 reclen = de->d_reclen; 4645 if (reclen > len) 4646 break; 4647 de->d_reclen = tswap16(reclen); 4648 tswapls(&de->d_ino); 4649 tswapls(&de->d_off); 4650 de = (struct dirent *)((char *)de + reclen); 4651 len -= reclen; 4652 } 4653 } 4654 unlock_user(dirp, arg2, ret); 4655 } 4656 #endif 4657 break; 4658 #if defined(TARGET_NR_getdents64) && defined(__NR_getdents64) 4659 case TARGET_NR_getdents64: 4660 { 4661 struct dirent64 *dirp; 4662 abi_long count = arg3; 4663 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0))) 4664 goto efault; 4665 ret = get_errno(sys_getdents64(arg1, dirp, count)); 4666 if (!is_error(ret)) { 4667 struct dirent64 *de; 4668 int len = ret; 4669 int reclen; 4670 de = dirp; 4671 while (len > 0) { 4672 reclen = de->d_reclen; 4673 if (reclen > len) 4674 break; 4675 de->d_reclen = tswap16(reclen); 4676 tswap64s((uint64_t *)&de->d_ino); 4677 tswap64s((uint64_t *)&de->d_off); 4678 de = (struct dirent64 *)((char *)de + reclen); 4679 len -= reclen; 4680 } 4681 } 4682 unlock_user(dirp, arg2, ret); 4683 } 4684 break; 4685 #endif /* TARGET_NR_getdents64 */ 4686 #ifdef TARGET_NR__newselect 4687 case TARGET_NR__newselect: 4688 ret = do_select(arg1, arg2, arg3, arg4, arg5); 4689 break; 4690 #endif 4691 #ifdef TARGET_NR_poll 4692 case TARGET_NR_poll: 4693 { 4694 struct target_pollfd *target_pfd; 4695 unsigned int nfds = arg2; 4696 int timeout = arg3; 4697 struct pollfd *pfd; 4698 unsigned int i; 4699 4700 target_pfd = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_pollfd) * nfds, 1); 4701 if (!target_pfd) 4702 goto efault; 4703 pfd = alloca(sizeof(struct pollfd) * nfds); 4704 for(i = 0; i < nfds; i++) { 4705 pfd[i].fd = tswap32(target_pfd[i].fd); 4706 pfd[i].events = tswap16(target_pfd[i].events); 4707 } 4708 ret = get_errno(poll(pfd, nfds, timeout)); 4709 if (!is_error(ret)) { 4710 for(i = 0; i < nfds; i++) { 4711 target_pfd[i].revents = tswap16(pfd[i].revents); 4712 } 4713 ret += nfds * (sizeof(struct target_pollfd) 4714 - sizeof(struct pollfd)); 4715 } 4716 unlock_user(target_pfd, arg1, ret); 4717 } 4718 break; 4719 #endif 4720 case TARGET_NR_flock: 4721 /* NOTE: the flock constant seems to be the same for every 4722 Linux platform */ 4723 ret = get_errno(flock(arg1, arg2)); 4724 break; 4725 case TARGET_NR_readv: 4726 { 4727 int count = arg3; 4728 struct iovec *vec; 4729 4730 vec = alloca(count * sizeof(struct iovec)); 4731 if (lock_iovec(VERIFY_WRITE, vec, arg2, count, 0) < 0) 4732 goto efault; 4733 ret = get_errno(readv(arg1, vec, count)); 4734 unlock_iovec(vec, arg2, count, 1); 4735 } 4736 break; 4737 case TARGET_NR_writev: 4738 { 4739 int count = arg3; 4740 struct iovec *vec; 4741 4742 vec = alloca(count * sizeof(struct iovec)); 4743 if (lock_iovec(VERIFY_READ, vec, arg2, count, 1) < 0) 4744 goto efault; 4745 ret = get_errno(writev(arg1, vec, count)); 4746 unlock_iovec(vec, arg2, count, 0); 4747 } 4748 break; 4749 case TARGET_NR_getsid: 4750 ret = get_errno(getsid(arg1)); 4751 break; 4752 #if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */ 4753 case TARGET_NR_fdatasync: 4754 ret = get_errno(fdatasync(arg1)); 4755 break; 4756 #endif 4757 case TARGET_NR__sysctl: 4758 /* We don't implement this, but ENOTDIR is always a safe 4759 return value. */ 4760 ret = -TARGET_ENOTDIR; 4761 break; 4762 case TARGET_NR_sched_setparam: 4763 { 4764 struct sched_param *target_schp; 4765 struct sched_param schp; 4766 4767 if (!lock_user_struct(VERIFY_READ, target_schp, arg2, 1)) 4768 goto efault; 4769 schp.sched_priority = tswap32(target_schp->sched_priority); 4770 unlock_user_struct(target_schp, arg2, 0); 4771 ret = get_errno(sched_setparam(arg1, &schp)); 4772 } 4773 break; 4774 case TARGET_NR_sched_getparam: 4775 { 4776 struct sched_param *target_schp; 4777 struct sched_param schp; 4778 ret = get_errno(sched_getparam(arg1, &schp)); 4779 if (!is_error(ret)) { 4780 if (!lock_user_struct(VERIFY_WRITE, target_schp, arg2, 0)) 4781 goto efault; 4782 target_schp->sched_priority = tswap32(schp.sched_priority); 4783 unlock_user_struct(target_schp, arg2, 1); 4784 } 4785 } 4786 break; 4787 case TARGET_NR_sched_setscheduler: 4788 { 4789 struct sched_param *target_schp; 4790 struct sched_param schp; 4791 if (!lock_user_struct(VERIFY_READ, target_schp, arg3, 1)) 4792 goto efault; 4793 schp.sched_priority = tswap32(target_schp->sched_priority); 4794 unlock_user_struct(target_schp, arg3, 0); 4795 ret = get_errno(sched_setscheduler(arg1, arg2, &schp)); 4796 } 4797 break; 4798 case TARGET_NR_sched_getscheduler: 4799 ret = get_errno(sched_getscheduler(arg1)); 4800 break; 4801 case TARGET_NR_sched_yield: 4802 ret = get_errno(sched_yield()); 4803 break; 4804 case TARGET_NR_sched_get_priority_max: 4805 ret = get_errno(sched_get_priority_max(arg1)); 4806 break; 4807 case TARGET_NR_sched_get_priority_min: 4808 ret = get_errno(sched_get_priority_min(arg1)); 4809 break; 4810 case TARGET_NR_sched_rr_get_interval: 4811 { 4812 struct timespec ts; 4813 ret = get_errno(sched_rr_get_interval(arg1, &ts)); 4814 if (!is_error(ret)) { 4815 host_to_target_timespec(arg2, &ts); 4816 } 4817 } 4818 break; 4819 case TARGET_NR_nanosleep: 4820 { 4821 struct timespec req, rem; 4822 target_to_host_timespec(&req, arg1); 4823 ret = get_errno(nanosleep(&req, &rem)); 4824 if (is_error(ret) && arg2) { 4825 host_to_target_timespec(arg2, &rem); 4826 } 4827 } 4828 break; 4829 #ifdef TARGET_NR_query_module 4830 case TARGET_NR_query_module: 4831 goto unimplemented; 4832 #endif 4833 #ifdef TARGET_NR_nfsservctl 4834 case TARGET_NR_nfsservctl: 4835 goto unimplemented; 4836 #endif 4837 case TARGET_NR_prctl: 4838 switch (arg1) 4839 { 4840 case PR_GET_PDEATHSIG: 4841 { 4842 int deathsig; 4843 ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5)); 4844 if (!is_error(ret) && arg2 4845 && put_user_ual(deathsig, arg2)) 4846 goto efault; 4847 } 4848 break; 4849 default: 4850 ret = get_errno(prctl(arg1, arg2, arg3, arg4, arg5)); 4851 break; 4852 } 4853 break; 4854 #ifdef TARGET_NR_arch_prctl 4855 case TARGET_NR_arch_prctl: 4856 #if defined(TARGET_I386) && !defined(TARGET_ABI32) 4857 ret = do_arch_prctl(cpu_env, arg1, arg2); 4858 break; 4859 #else 4860 goto unimplemented; 4861 #endif 4862 #endif 4863 #ifdef TARGET_NR_pread 4864 case TARGET_NR_pread: 4865 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0))) 4866 goto efault; 4867 ret = get_errno(pread(arg1, p, arg3, arg4)); 4868 unlock_user(p, arg2, ret); 4869 break; 4870 case TARGET_NR_pwrite: 4871 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1))) 4872 goto efault; 4873 ret = get_errno(pwrite(arg1, p, arg3, arg4)); 4874 unlock_user(p, arg2, 0); 4875 break; 4876 #endif 4877 #ifdef TARGET_NR_pread64 4878 case TARGET_NR_pread64: 4879 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0))) 4880 goto efault; 4881 ret = get_errno(pread64(arg1, p, arg3, target_offset64(arg4, arg5))); 4882 unlock_user(p, arg2, ret); 4883 break; 4884 case TARGET_NR_pwrite64: 4885 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1))) 4886 goto efault; 4887 ret = get_errno(pwrite64(arg1, p, arg3, target_offset64(arg4, arg5))); 4888 unlock_user(p, arg2, 0); 4889 break; 4890 #endif 4891 case TARGET_NR_getcwd: 4892 if (!(p = lock_user(VERIFY_WRITE, arg1, arg2, 0))) 4893 goto efault; 4894 ret = get_errno(sys_getcwd1(p, arg2)); 4895 unlock_user(p, arg1, ret); 4896 break; 4897 case TARGET_NR_capget: 4898 goto unimplemented; 4899 case TARGET_NR_capset: 4900 goto unimplemented; 4901 case TARGET_NR_sigaltstack: 4902 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_MIPS) || \ 4903 defined(TARGET_SPARC) || defined(TARGET_PPC) || defined(TARGET_ALPHA) 4904 ret = do_sigaltstack(arg1, arg2, get_sp_from_cpustate((CPUState *)cpu_env)); 4905 break; 4906 #else 4907 goto unimplemented; 4908 #endif 4909 case TARGET_NR_sendfile: 4910 goto unimplemented; 4911 #ifdef TARGET_NR_getpmsg 4912 case TARGET_NR_getpmsg: 4913 goto unimplemented; 4914 #endif 4915 #ifdef TARGET_NR_putpmsg 4916 case TARGET_NR_putpmsg: 4917 goto unimplemented; 4918 #endif 4919 #ifdef TARGET_NR_vfork 4920 case TARGET_NR_vfork: 4921 ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0)); 4922 break; 4923 #endif 4924 #ifdef TARGET_NR_ugetrlimit 4925 case TARGET_NR_ugetrlimit: 4926 { 4927 struct rlimit rlim; 4928 ret = get_errno(getrlimit(arg1, &rlim)); 4929 if (!is_error(ret)) { 4930 struct target_rlimit *target_rlim; 4931 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0)) 4932 goto efault; 4933 target_rlim->rlim_cur = tswapl(rlim.rlim_cur); 4934 target_rlim->rlim_max = tswapl(rlim.rlim_max); 4935 unlock_user_struct(target_rlim, arg2, 1); 4936 } 4937 break; 4938 } 4939 #endif 4940 #ifdef TARGET_NR_truncate64 4941 case TARGET_NR_truncate64: 4942 if (!(p = lock_user_string(arg1))) 4943 goto efault; 4944 ret = target_truncate64(cpu_env, p, arg2, arg3, arg4); 4945 unlock_user(p, arg1, 0); 4946 break; 4947 #endif 4948 #ifdef TARGET_NR_ftruncate64 4949 case TARGET_NR_ftruncate64: 4950 ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4); 4951 break; 4952 #endif 4953 #ifdef TARGET_NR_stat64 4954 case TARGET_NR_stat64: 4955 if (!(p = lock_user_string(arg1))) 4956 goto efault; 4957 ret = get_errno(stat(path(p), &st)); 4958 unlock_user(p, arg1, 0); 4959 goto do_stat64; 4960 #endif 4961 #ifdef TARGET_NR_lstat64 4962 case TARGET_NR_lstat64: 4963 if (!(p = lock_user_string(arg1))) 4964 goto efault; 4965 ret = get_errno(lstat(path(p), &st)); 4966 unlock_user(p, arg1, 0); 4967 goto do_stat64; 4968 #endif 4969 #ifdef TARGET_NR_fstat64 4970 case TARGET_NR_fstat64: 4971 { 4972 ret = get_errno(fstat(arg1, &st)); 4973 do_stat64: 4974 if (!is_error(ret)) { 4975 #ifdef TARGET_ARM 4976 if (((CPUARMState *)cpu_env)->eabi) { 4977 struct target_eabi_stat64 *target_st; 4978 4979 if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0)) 4980 goto efault; 4981 memset(target_st, 0, sizeof(struct target_eabi_stat64)); 4982 __put_user(st.st_dev, &target_st->st_dev); 4983 __put_user(st.st_ino, &target_st->st_ino); 4984 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO 4985 __put_user(st.st_ino, &target_st->__st_ino); 4986 #endif 4987 __put_user(st.st_mode, &target_st->st_mode); 4988 __put_user(st.st_nlink, &target_st->st_nlink); 4989 __put_user(st.st_uid, &target_st->st_uid); 4990 __put_user(st.st_gid, &target_st->st_gid); 4991 __put_user(st.st_rdev, &target_st->st_rdev); 4992 __put_user(st.st_size, &target_st->st_size); 4993 __put_user(st.st_blksize, &target_st->st_blksize); 4994 __put_user(st.st_blocks, &target_st->st_blocks); 4995 __put_user(st.st_atime, &target_st->target_st_atime); 4996 __put_user(st.st_mtime, &target_st->target_st_mtime); 4997 __put_user(st.st_ctime, &target_st->target_st_ctime); 4998 unlock_user_struct(target_st, arg2, 1); 4999 } else 5000 #endif 5001 { 5002 struct target_stat64 *target_st; 5003 5004 if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0)) 5005 goto efault; 5006 memset(target_st, 0, sizeof(struct target_stat64)); 5007 __put_user(st.st_dev, &target_st->st_dev); 5008 __put_user(st.st_ino, &target_st->st_ino); 5009 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO 5010 __put_user(st.st_ino, &target_st->__st_ino); 5011 #endif 5012 __put_user(st.st_mode, &target_st->st_mode); 5013 __put_user(st.st_nlink, &target_st->st_nlink); 5014 __put_user(st.st_uid, &target_st->st_uid); 5015 __put_user(st.st_gid, &target_st->st_gid); 5016 __put_user(st.st_rdev, &target_st->st_rdev); 5017 /* XXX: better use of kernel struct */ 5018 __put_user(st.st_size, &target_st->st_size); 5019 __put_user(st.st_blksize, &target_st->st_blksize); 5020 __put_user(st.st_blocks, &target_st->st_blocks); 5021 __put_user(st.st_atime, &target_st->target_st_atime); 5022 __put_user(st.st_mtime, &target_st->target_st_mtime); 5023 __put_user(st.st_ctime, &target_st->target_st_ctime); 5024 unlock_user_struct(target_st, arg2, 1); 5025 } 5026 } 5027 } 5028 break; 5029 #endif 5030 #ifdef USE_UID16 5031 case TARGET_NR_lchown: 5032 if (!(p = lock_user_string(arg1))) 5033 goto efault; 5034 ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3))); 5035 unlock_user(p, arg1, 0); 5036 break; 5037 case TARGET_NR_getuid: 5038 ret = get_errno(high2lowuid(getuid())); 5039 break; 5040 case TARGET_NR_getgid: 5041 ret = get_errno(high2lowgid(getgid())); 5042 break; 5043 case TARGET_NR_geteuid: 5044 ret = get_errno(high2lowuid(geteuid())); 5045 break; 5046 case TARGET_NR_getegid: 5047 ret = get_errno(high2lowgid(getegid())); 5048 break; 5049 case TARGET_NR_setreuid: 5050 ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2))); 5051 break; 5052 case TARGET_NR_setregid: 5053 ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2))); 5054 break; 5055 case TARGET_NR_getgroups: 5056 { 5057 int gidsetsize = arg1; 5058 uint16_t *target_grouplist; 5059 gid_t *grouplist; 5060 int i; 5061 5062 grouplist = alloca(gidsetsize * sizeof(gid_t)); 5063 ret = get_errno(getgroups(gidsetsize, grouplist)); 5064 if (!is_error(ret)) { 5065 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 2, 0); 5066 if (!target_grouplist) 5067 goto efault; 5068 for(i = 0;i < gidsetsize; i++) 5069 target_grouplist[i] = tswap16(grouplist[i]); 5070 unlock_user(target_grouplist, arg2, gidsetsize * 2); 5071 } 5072 } 5073 break; 5074 case TARGET_NR_setgroups: 5075 { 5076 int gidsetsize = arg1; 5077 uint16_t *target_grouplist; 5078 gid_t *grouplist; 5079 int i; 5080 5081 grouplist = alloca(gidsetsize * sizeof(gid_t)); 5082 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 2, 1); 5083 if (!target_grouplist) { 5084 ret = -TARGET_EFAULT; 5085 goto fail; 5086 } 5087 for(i = 0;i < gidsetsize; i++) 5088 grouplist[i] = tswap16(target_grouplist[i]); 5089 unlock_user(target_grouplist, arg2, 0); 5090 ret = get_errno(setgroups(gidsetsize, grouplist)); 5091 } 5092 break; 5093 case TARGET_NR_fchown: 5094 ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3))); 5095 break; 5096 #if defined(TARGET_NR_fchownat) && defined(__NR_fchownat) 5097 case TARGET_NR_fchownat: 5098 if (!(p = lock_user_string(arg2))) 5099 goto efault; 5100 ret = get_errno(sys_fchownat(arg1, p, low2highuid(arg3), low2highgid(arg4), arg5)); 5101 unlock_user(p, arg2, 0); 5102 break; 5103 #endif 5104 #ifdef TARGET_NR_setresuid 5105 case TARGET_NR_setresuid: 5106 ret = get_errno(setresuid(low2highuid(arg1), 5107 low2highuid(arg2), 5108 low2highuid(arg3))); 5109 break; 5110 #endif 5111 #ifdef TARGET_NR_getresuid 5112 case TARGET_NR_getresuid: 5113 { 5114 uid_t ruid, euid, suid; 5115 ret = get_errno(getresuid(&ruid, &euid, &suid)); 5116 if (!is_error(ret)) { 5117 if (put_user_u16(high2lowuid(ruid), arg1) 5118 || put_user_u16(high2lowuid(euid), arg2) 5119 || put_user_u16(high2lowuid(suid), arg3)) 5120 goto efault; 5121 } 5122 } 5123 break; 5124 #endif 5125 #ifdef TARGET_NR_getresgid 5126 case TARGET_NR_setresgid: 5127 ret = get_errno(setresgid(low2highgid(arg1), 5128 low2highgid(arg2), 5129 low2highgid(arg3))); 5130 break; 5131 #endif 5132 #ifdef TARGET_NR_getresgid 5133 case TARGET_NR_getresgid: 5134 { 5135 gid_t rgid, egid, sgid; 5136 ret = get_errno(getresgid(&rgid, &egid, &sgid)); 5137 if (!is_error(ret)) { 5138 if (put_user_u16(high2lowgid(rgid), arg1) 5139 || put_user_u16(high2lowgid(egid), arg2) 5140 || put_user_u16(high2lowgid(sgid), arg3)) 5141 goto efault; 5142 } 5143 } 5144 break; 5145 #endif 5146 case TARGET_NR_chown: 5147 if (!(p = lock_user_string(arg1))) 5148 goto efault; 5149 ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3))); 5150 unlock_user(p, arg1, 0); 5151 break; 5152 case TARGET_NR_setuid: 5153 ret = get_errno(setuid(low2highuid(arg1))); 5154 break; 5155 case TARGET_NR_setgid: 5156 ret = get_errno(setgid(low2highgid(arg1))); 5157 break; 5158 case TARGET_NR_setfsuid: 5159 ret = get_errno(setfsuid(arg1)); 5160 break; 5161 case TARGET_NR_setfsgid: 5162 ret = get_errno(setfsgid(arg1)); 5163 break; 5164 #endif /* USE_UID16 */ 5165 5166 #ifdef TARGET_NR_lchown32 5167 case TARGET_NR_lchown32: 5168 if (!(p = lock_user_string(arg1))) 5169 goto efault; 5170 ret = get_errno(lchown(p, arg2, arg3)); 5171 unlock_user(p, arg1, 0); 5172 break; 5173 #endif 5174 #ifdef TARGET_NR_getuid32 5175 case TARGET_NR_getuid32: 5176 ret = get_errno(getuid()); 5177 break; 5178 #endif 5179 #ifdef TARGET_NR_getgid32 5180 case TARGET_NR_getgid32: 5181 ret = get_errno(getgid()); 5182 break; 5183 #endif 5184 #ifdef TARGET_NR_geteuid32 5185 case TARGET_NR_geteuid32: 5186 ret = get_errno(geteuid()); 5187 break; 5188 #endif 5189 #ifdef TARGET_NR_getegid32 5190 case TARGET_NR_getegid32: 5191 ret = get_errno(getegid()); 5192 break; 5193 #endif 5194 #ifdef TARGET_NR_setreuid32 5195 case TARGET_NR_setreuid32: 5196 ret = get_errno(setreuid(arg1, arg2)); 5197 break; 5198 #endif 5199 #ifdef TARGET_NR_setregid32 5200 case TARGET_NR_setregid32: 5201 ret = get_errno(setregid(arg1, arg2)); 5202 break; 5203 #endif 5204 #ifdef TARGET_NR_getgroups32 5205 case TARGET_NR_getgroups32: 5206 { 5207 int gidsetsize = arg1; 5208 uint32_t *target_grouplist; 5209 gid_t *grouplist; 5210 int i; 5211 5212 grouplist = alloca(gidsetsize * sizeof(gid_t)); 5213 ret = get_errno(getgroups(gidsetsize, grouplist)); 5214 if (!is_error(ret)) { 5215 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 4, 0); 5216 if (!target_grouplist) { 5217 ret = -TARGET_EFAULT; 5218 goto fail; 5219 } 5220 for(i = 0;i < gidsetsize; i++) 5221 target_grouplist[i] = tswap32(grouplist[i]); 5222 unlock_user(target_grouplist, arg2, gidsetsize * 4); 5223 } 5224 } 5225 break; 5226 #endif 5227 #ifdef TARGET_NR_setgroups32 5228 case TARGET_NR_setgroups32: 5229 { 5230 int gidsetsize = arg1; 5231 uint32_t *target_grouplist; 5232 gid_t *grouplist; 5233 int i; 5234 5235 grouplist = alloca(gidsetsize * sizeof(gid_t)); 5236 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 4, 1); 5237 if (!target_grouplist) { 5238 ret = -TARGET_EFAULT; 5239 goto fail; 5240 } 5241 for(i = 0;i < gidsetsize; i++) 5242 grouplist[i] = tswap32(target_grouplist[i]); 5243 unlock_user(target_grouplist, arg2, 0); 5244 ret = get_errno(setgroups(gidsetsize, grouplist)); 5245 } 5246 break; 5247 #endif 5248 #ifdef TARGET_NR_fchown32 5249 case TARGET_NR_fchown32: 5250 ret = get_errno(fchown(arg1, arg2, arg3)); 5251 break; 5252 #endif 5253 #ifdef TARGET_NR_setresuid32 5254 case TARGET_NR_setresuid32: 5255 ret = get_errno(setresuid(arg1, arg2, arg3)); 5256 break; 5257 #endif 5258 #ifdef TARGET_NR_getresuid32 5259 case TARGET_NR_getresuid32: 5260 { 5261 uid_t ruid, euid, suid; 5262 ret = get_errno(getresuid(&ruid, &euid, &suid)); 5263 if (!is_error(ret)) { 5264 if (put_user_u32(ruid, arg1) 5265 || put_user_u32(euid, arg2) 5266 || put_user_u32(suid, arg3)) 5267 goto efault; 5268 } 5269 } 5270 break; 5271 #endif 5272 #ifdef TARGET_NR_setresgid32 5273 case TARGET_NR_setresgid32: 5274 ret = get_errno(setresgid(arg1, arg2, arg3)); 5275 break; 5276 #endif 5277 #ifdef TARGET_NR_getresgid32 5278 case TARGET_NR_getresgid32: 5279 { 5280 gid_t rgid, egid, sgid; 5281 ret = get_errno(getresgid(&rgid, &egid, &sgid)); 5282 if (!is_error(ret)) { 5283 if (put_user_u32(rgid, arg1) 5284 || put_user_u32(egid, arg2) 5285 || put_user_u32(sgid, arg3)) 5286 goto efault; 5287 } 5288 } 5289 break; 5290 #endif 5291 #ifdef TARGET_NR_chown32 5292 case TARGET_NR_chown32: 5293 if (!(p = lock_user_string(arg1))) 5294 goto efault; 5295 ret = get_errno(chown(p, arg2, arg3)); 5296 unlock_user(p, arg1, 0); 5297 break; 5298 #endif 5299 #ifdef TARGET_NR_setuid32 5300 case TARGET_NR_setuid32: 5301 ret = get_errno(setuid(arg1)); 5302 break; 5303 #endif 5304 #ifdef TARGET_NR_setgid32 5305 case TARGET_NR_setgid32: 5306 ret = get_errno(setgid(arg1)); 5307 break; 5308 #endif 5309 #ifdef TARGET_NR_setfsuid32 5310 case TARGET_NR_setfsuid32: 5311 ret = get_errno(setfsuid(arg1)); 5312 break; 5313 #endif 5314 #ifdef TARGET_NR_setfsgid32 5315 case TARGET_NR_setfsgid32: 5316 ret = get_errno(setfsgid(arg1)); 5317 break; 5318 #endif 5319 5320 case TARGET_NR_pivot_root: 5321 goto unimplemented; 5322 #ifdef TARGET_NR_mincore 5323 case TARGET_NR_mincore: 5324 goto unimplemented; 5325 #endif 5326 #ifdef TARGET_NR_madvise 5327 case TARGET_NR_madvise: 5328 /* A straight passthrough may not be safe because qemu sometimes 5329 turns private flie-backed mappings into anonymous mappings. 5330 This will break MADV_DONTNEED. 5331 This is a hint, so ignoring and returning success is ok. */ 5332 ret = get_errno(0); 5333 break; 5334 #endif 5335 #if TARGET_ABI_BITS == 32 5336 case TARGET_NR_fcntl64: 5337 { 5338 int cmd; 5339 struct flock64 fl; 5340 struct target_flock64 *target_fl; 5341 #ifdef TARGET_ARM 5342 struct target_eabi_flock64 *target_efl; 5343 #endif 5344 5345 switch(arg2){ 5346 case TARGET_F_GETLK64: 5347 cmd = F_GETLK64; 5348 break; 5349 case TARGET_F_SETLK64: 5350 cmd = F_SETLK64; 5351 break; 5352 case TARGET_F_SETLKW64: 5353 cmd = F_SETLK64; 5354 break; 5355 default: 5356 cmd = arg2; 5357 break; 5358 } 5359 5360 switch(arg2) { 5361 case TARGET_F_GETLK64: 5362 #ifdef TARGET_ARM 5363 if (((CPUARMState *)cpu_env)->eabi) { 5364 if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1)) 5365 goto efault; 5366 fl.l_type = tswap16(target_efl->l_type); 5367 fl.l_whence = tswap16(target_efl->l_whence); 5368 fl.l_start = tswap64(target_efl->l_start); 5369 fl.l_len = tswap64(target_efl->l_len); 5370 fl.l_pid = tswapl(target_efl->l_pid); 5371 unlock_user_struct(target_efl, arg3, 0); 5372 } else 5373 #endif 5374 { 5375 if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1)) 5376 goto efault; 5377 fl.l_type = tswap16(target_fl->l_type); 5378 fl.l_whence = tswap16(target_fl->l_whence); 5379 fl.l_start = tswap64(target_fl->l_start); 5380 fl.l_len = tswap64(target_fl->l_len); 5381 fl.l_pid = tswapl(target_fl->l_pid); 5382 unlock_user_struct(target_fl, arg3, 0); 5383 } 5384 ret = get_errno(fcntl(arg1, cmd, &fl)); 5385 if (ret == 0) { 5386 #ifdef TARGET_ARM 5387 if (((CPUARMState *)cpu_env)->eabi) { 5388 if (!lock_user_struct(VERIFY_WRITE, target_efl, arg3, 0)) 5389 goto efault; 5390 target_efl->l_type = tswap16(fl.l_type); 5391 target_efl->l_whence = tswap16(fl.l_whence); 5392 target_efl->l_start = tswap64(fl.l_start); 5393 target_efl->l_len = tswap64(fl.l_len); 5394 target_efl->l_pid = tswapl(fl.l_pid); 5395 unlock_user_struct(target_efl, arg3, 1); 5396 } else 5397 #endif 5398 { 5399 if (!lock_user_struct(VERIFY_WRITE, target_fl, arg3, 0)) 5400 goto efault; 5401 target_fl->l_type = tswap16(fl.l_type); 5402 target_fl->l_whence = tswap16(fl.l_whence); 5403 target_fl->l_start = tswap64(fl.l_start); 5404 target_fl->l_len = tswap64(fl.l_len); 5405 target_fl->l_pid = tswapl(fl.l_pid); 5406 unlock_user_struct(target_fl, arg3, 1); 5407 } 5408 } 5409 break; 5410 5411 case TARGET_F_SETLK64: 5412 case TARGET_F_SETLKW64: 5413 #ifdef TARGET_ARM 5414 if (((CPUARMState *)cpu_env)->eabi) { 5415 if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1)) 5416 goto efault; 5417 fl.l_type = tswap16(target_efl->l_type); 5418 fl.l_whence = tswap16(target_efl->l_whence); 5419 fl.l_start = tswap64(target_efl->l_start); 5420 fl.l_len = tswap64(target_efl->l_len); 5421 fl.l_pid = tswapl(target_efl->l_pid); 5422 unlock_user_struct(target_efl, arg3, 0); 5423 } else 5424 #endif 5425 { 5426 if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1)) 5427 goto efault; 5428 fl.l_type = tswap16(target_fl->l_type); 5429 fl.l_whence = tswap16(target_fl->l_whence); 5430 fl.l_start = tswap64(target_fl->l_start); 5431 fl.l_len = tswap64(target_fl->l_len); 5432 fl.l_pid = tswapl(target_fl->l_pid); 5433 unlock_user_struct(target_fl, arg3, 0); 5434 } 5435 ret = get_errno(fcntl(arg1, cmd, &fl)); 5436 break; 5437 default: 5438 ret = do_fcntl(arg1, cmd, arg3); 5439 break; 5440 } 5441 break; 5442 } 5443 #endif 5444 #ifdef TARGET_NR_cacheflush 5445 case TARGET_NR_cacheflush: 5446 /* self-modifying code is handled automatically, so nothing needed */ 5447 ret = 0; 5448 break; 5449 #endif 5450 #ifdef TARGET_NR_security 5451 case TARGET_NR_security: 5452 goto unimplemented; 5453 #endif 5454 #ifdef TARGET_NR_getpagesize 5455 case TARGET_NR_getpagesize: 5456 ret = TARGET_PAGE_SIZE; 5457 break; 5458 #endif 5459 case TARGET_NR_gettid: 5460 ret = get_errno(gettid()); 5461 break; 5462 #ifdef TARGET_NR_readahead 5463 case TARGET_NR_readahead: 5464 goto unimplemented; 5465 #endif 5466 #ifdef TARGET_NR_setxattr 5467 case TARGET_NR_setxattr: 5468 case TARGET_NR_lsetxattr: 5469 case TARGET_NR_fsetxattr: 5470 case TARGET_NR_getxattr: 5471 case TARGET_NR_lgetxattr: 5472 case TARGET_NR_fgetxattr: 5473 case TARGET_NR_listxattr: 5474 case TARGET_NR_llistxattr: 5475 case TARGET_NR_flistxattr: 5476 case TARGET_NR_removexattr: 5477 case TARGET_NR_lremovexattr: 5478 case TARGET_NR_fremovexattr: 5479 goto unimplemented_nowarn; 5480 #endif 5481 #ifdef TARGET_NR_set_thread_area 5482 case TARGET_NR_set_thread_area: 5483 #if defined(TARGET_MIPS) 5484 ((CPUMIPSState *) cpu_env)->tls_value = arg1; 5485 ret = 0; 5486 break; 5487 #elif defined(TARGET_I386) && defined(TARGET_ABI32) 5488 ret = do_set_thread_area(cpu_env, arg1); 5489 break; 5490 #else 5491 goto unimplemented_nowarn; 5492 #endif 5493 #endif 5494 #ifdef TARGET_NR_get_thread_area 5495 case TARGET_NR_get_thread_area: 5496 #if defined(TARGET_I386) && defined(TARGET_ABI32) 5497 ret = do_get_thread_area(cpu_env, arg1); 5498 #else 5499 goto unimplemented_nowarn; 5500 #endif 5501 #endif 5502 #ifdef TARGET_NR_getdomainname 5503 case TARGET_NR_getdomainname: 5504 goto unimplemented_nowarn; 5505 #endif 5506 5507 #ifdef TARGET_NR_clock_gettime 5508 case TARGET_NR_clock_gettime: 5509 { 5510 struct timespec ts; 5511 ret = get_errno(clock_gettime(arg1, &ts)); 5512 if (!is_error(ret)) { 5513 host_to_target_timespec(arg2, &ts); 5514 } 5515 break; 5516 } 5517 #endif 5518 #ifdef TARGET_NR_clock_getres 5519 case TARGET_NR_clock_getres: 5520 { 5521 struct timespec ts; 5522 ret = get_errno(clock_getres(arg1, &ts)); 5523 if (!is_error(ret)) { 5524 host_to_target_timespec(arg2, &ts); 5525 } 5526 break; 5527 } 5528 #endif 5529 5530 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address) 5531 case TARGET_NR_set_tid_address: 5532 ret = get_errno(set_tid_address((int *)g2h(arg1))); 5533 break; 5534 #endif 5535 5536 #if defined(TARGET_NR_tkill) && defined(__NR_tkill) 5537 case TARGET_NR_tkill: 5538 ret = get_errno(sys_tkill((int)arg1, (int)arg2)); 5539 break; 5540 #endif 5541 5542 #if defined(TARGET_NR_tgkill) && defined(__NR_tgkill) 5543 case TARGET_NR_tgkill: 5544 ret = get_errno(sys_tgkill((int)arg1, (int)arg2, (int)arg3)); 5545 break; 5546 #endif 5547 5548 #ifdef TARGET_NR_set_robust_list 5549 case TARGET_NR_set_robust_list: 5550 goto unimplemented_nowarn; 5551 #endif 5552 5553 #if defined(TARGET_NR_utimensat) && defined(__NR_utimensat) 5554 case TARGET_NR_utimensat: 5555 { 5556 struct timespec ts[2]; 5557 target_to_host_timespec(ts, arg3); 5558 target_to_host_timespec(ts+1, arg3+sizeof(struct target_timespec)); 5559 if (!arg2) 5560 ret = get_errno(sys_utimensat(arg1, NULL, ts, arg4)); 5561 else { 5562 if (!(p = lock_user_string(arg2))) { 5563 ret = -TARGET_EFAULT; 5564 goto fail; 5565 } 5566 ret = get_errno(sys_utimensat(arg1, path(p), ts, arg4)); 5567 unlock_user(p, arg2, 0); 5568 } 5569 } 5570 break; 5571 #endif 5572 5573 default: 5574 unimplemented: 5575 gemu_log("qemu: Unsupported syscall: %d\n", num); 5576 #if defined(TARGET_NR_setxattr) || defined(TARGET_NR_get_thread_area) || defined(TARGET_NR_getdomainname) || defined(TARGET_NR_set_robust_list) 5577 unimplemented_nowarn: 5578 #endif 5579 ret = -TARGET_ENOSYS; 5580 break; 5581 } 5582 fail: 5583 #ifdef DEBUG 5584 gemu_log(" = %ld\n", ret); 5585 #endif 5586 if(do_strace) 5587 print_syscall_ret(num, ret); 5588 return ret; 5589 efault: 5590 ret = -TARGET_EFAULT; 5591 goto fail; 5592 } 5593