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 #include <linux/loop.h> 72 73 #include "qemu.h" 74 75 //#define DEBUG 76 77 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_SPARC) \ 78 || defined(TARGET_M68K) || defined(TARGET_SH4) || defined(TARGET_CRIS) 79 /* 16 bit uid wrappers emulation */ 80 #define USE_UID16 81 #endif 82 83 //#include <linux/msdos_fs.h> 84 #define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct dirent [2]) 85 #define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct dirent [2]) 86 87 88 #undef _syscall0 89 #undef _syscall1 90 #undef _syscall2 91 #undef _syscall3 92 #undef _syscall4 93 #undef _syscall5 94 #undef _syscall6 95 96 #define _syscall0(type,name) \ 97 type name (void) \ 98 { \ 99 return syscall(__NR_##name); \ 100 } 101 102 #define _syscall1(type,name,type1,arg1) \ 103 type name (type1 arg1) \ 104 { \ 105 return syscall(__NR_##name, arg1); \ 106 } 107 108 #define _syscall2(type,name,type1,arg1,type2,arg2) \ 109 type name (type1 arg1,type2 arg2) \ 110 { \ 111 return syscall(__NR_##name, arg1, arg2); \ 112 } 113 114 #define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \ 115 type name (type1 arg1,type2 arg2,type3 arg3) \ 116 { \ 117 return syscall(__NR_##name, arg1, arg2, arg3); \ 118 } 119 120 #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \ 121 type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4) \ 122 { \ 123 return syscall(__NR_##name, arg1, arg2, arg3, arg4); \ 124 } 125 126 #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \ 127 type5,arg5) \ 128 type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \ 129 { \ 130 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \ 131 } 132 133 134 #define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \ 135 type5,arg5,type6,arg6) \ 136 type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5,type6 arg6) \ 137 { \ 138 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \ 139 } 140 141 142 #define __NR_sys_uname __NR_uname 143 #define __NR_sys_faccessat __NR_faccessat 144 #define __NR_sys_fchmodat __NR_fchmodat 145 #define __NR_sys_fchownat __NR_fchownat 146 #define __NR_sys_getcwd1 __NR_getcwd 147 #define __NR_sys_getdents __NR_getdents 148 #define __NR_sys_getdents64 __NR_getdents64 149 #define __NR_sys_getpriority __NR_getpriority 150 #define __NR_sys_linkat __NR_linkat 151 #define __NR_sys_mkdirat __NR_mkdirat 152 #define __NR_sys_mknodat __NR_mknodat 153 #define __NR_sys_openat __NR_openat 154 #define __NR_sys_readlinkat __NR_readlinkat 155 #define __NR_sys_renameat __NR_renameat 156 #define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo 157 #define __NR_sys_symlinkat __NR_symlinkat 158 #define __NR_sys_syslog __NR_syslog 159 #define __NR_sys_tgkill __NR_tgkill 160 #define __NR_sys_tkill __NR_tkill 161 #define __NR_sys_unlinkat __NR_unlinkat 162 #define __NR_sys_utimensat __NR_utimensat 163 164 #if defined(__alpha__) || defined (__ia64__) || defined(__x86_64__) 165 #define __NR__llseek __NR_lseek 166 #endif 167 168 #ifdef __NR_gettid 169 _syscall0(int, gettid) 170 #else 171 /* This is a replacement for the host gettid() and must return a host 172 errno. */ 173 static int gettid(void) { 174 return -ENOSYS; 175 } 176 #endif 177 _syscall1(int,sys_uname,struct new_utsname *,buf) 178 #if defined(TARGET_NR_faccessat) && defined(__NR_faccessat) 179 _syscall4(int,sys_faccessat,int,dirfd,const char *,pathname,int,mode,int,flags) 180 #endif 181 #if defined(TARGET_NR_fchmodat) && defined(__NR_fchmodat) 182 _syscall4(int,sys_fchmodat,int,dirfd,const char *,pathname, 183 mode_t,mode,int,flags) 184 #endif 185 #if defined(TARGET_NR_fchownat) && defined(__NR_fchownat) 186 _syscall5(int,sys_fchownat,int,dirfd,const char *,pathname, 187 uid_t,owner,gid_t,group,int,flags) 188 #endif 189 _syscall2(int,sys_getcwd1,char *,buf,size_t,size) 190 _syscall3(int, sys_getdents, uint, fd, struct dirent *, dirp, uint, count); 191 #if defined(TARGET_NR_getdents64) && defined(__NR_getdents64) 192 _syscall3(int, sys_getdents64, uint, fd, struct dirent64 *, dirp, uint, count); 193 #endif 194 _syscall2(int, sys_getpriority, int, which, int, who); 195 _syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo, 196 loff_t *, res, uint, wh); 197 #if defined(TARGET_NR_linkat) && defined(__NR_linkat) 198 _syscall5(int,sys_linkat,int,olddirfd,const char *,oldpath, 199 int,newdirfd,const char *,newpath,int,flags) 200 #endif 201 #if defined(TARGET_NR_mkdirat) && defined(__NR_mkdirat) 202 _syscall3(int,sys_mkdirat,int,dirfd,const char *,pathname,mode_t,mode) 203 #endif 204 #if defined(TARGET_NR_mknodat) && defined(__NR_mknodat) 205 _syscall4(int,sys_mknodat,int,dirfd,const char *,pathname, 206 mode_t,mode,dev_t,dev) 207 #endif 208 #if defined(TARGET_NR_openat) && defined(__NR_openat) 209 _syscall4(int,sys_openat,int,dirfd,const char *,pathname,int,flags,mode_t,mode) 210 #endif 211 #if defined(TARGET_NR_readlinkat) && defined(__NR_readlinkat) 212 _syscall4(int,sys_readlinkat,int,dirfd,const char *,pathname, 213 char *,buf,size_t,bufsize) 214 #endif 215 #if defined(TARGET_NR_renameat) && defined(__NR_renameat) 216 _syscall4(int,sys_renameat,int,olddirfd,const char *,oldpath, 217 int,newdirfd,const char *,newpath) 218 #endif 219 _syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo) 220 #if defined(TARGET_NR_symlinkat) && defined(__NR_symlinkat) 221 _syscall3(int,sys_symlinkat,const char *,oldpath, 222 int,newdirfd,const char *,newpath) 223 #endif 224 _syscall3(int,sys_syslog,int,type,char*,bufp,int,len) 225 #if defined(TARGET_NR_tgkill) && defined(__NR_tgkill) 226 _syscall3(int,sys_tgkill,int,tgid,int,pid,int,sig) 227 #endif 228 #if defined(TARGET_NR_tkill) && defined(__NR_tkill) 229 _syscall2(int,sys_tkill,int,tid,int,sig) 230 #endif 231 #ifdef __NR_exit_group 232 _syscall1(int,exit_group,int,error_code) 233 #endif 234 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address) 235 _syscall1(int,set_tid_address,int *,tidptr) 236 #endif 237 #if defined(TARGET_NR_unlinkat) && defined(__NR_unlinkat) 238 _syscall3(int,sys_unlinkat,int,dirfd,const char *,pathname,int,flags) 239 #endif 240 #if defined(TARGET_NR_utimensat) && defined(__NR_utimensat) 241 _syscall4(int,sys_utimensat,int,dirfd,const char *,pathname, 242 const struct timespec *,tsp,int,flags) 243 #endif 244 245 extern int personality(int); 246 extern int flock(int, int); 247 extern int setfsuid(int); 248 extern int setfsgid(int); 249 extern int setresuid(uid_t, uid_t, uid_t); 250 extern int getresuid(uid_t *, uid_t *, uid_t *); 251 extern int setresgid(gid_t, gid_t, gid_t); 252 extern int getresgid(gid_t *, gid_t *, gid_t *); 253 extern int setgroups(int, gid_t *); 254 255 #define ERRNO_TABLE_SIZE 1200 256 257 /* target_to_host_errno_table[] is initialized from 258 * host_to_target_errno_table[] in syscall_init(). */ 259 static uint16_t target_to_host_errno_table[ERRNO_TABLE_SIZE] = { 260 }; 261 262 /* 263 * This list is the union of errno values overridden in asm-<arch>/errno.h 264 * minus the errnos that are not actually generic to all archs. 265 */ 266 static uint16_t host_to_target_errno_table[ERRNO_TABLE_SIZE] = { 267 [EIDRM] = TARGET_EIDRM, 268 [ECHRNG] = TARGET_ECHRNG, 269 [EL2NSYNC] = TARGET_EL2NSYNC, 270 [EL3HLT] = TARGET_EL3HLT, 271 [EL3RST] = TARGET_EL3RST, 272 [ELNRNG] = TARGET_ELNRNG, 273 [EUNATCH] = TARGET_EUNATCH, 274 [ENOCSI] = TARGET_ENOCSI, 275 [EL2HLT] = TARGET_EL2HLT, 276 [EDEADLK] = TARGET_EDEADLK, 277 [ENOLCK] = TARGET_ENOLCK, 278 [EBADE] = TARGET_EBADE, 279 [EBADR] = TARGET_EBADR, 280 [EXFULL] = TARGET_EXFULL, 281 [ENOANO] = TARGET_ENOANO, 282 [EBADRQC] = TARGET_EBADRQC, 283 [EBADSLT] = TARGET_EBADSLT, 284 [EBFONT] = TARGET_EBFONT, 285 [ENOSTR] = TARGET_ENOSTR, 286 [ENODATA] = TARGET_ENODATA, 287 [ETIME] = TARGET_ETIME, 288 [ENOSR] = TARGET_ENOSR, 289 [ENONET] = TARGET_ENONET, 290 [ENOPKG] = TARGET_ENOPKG, 291 [EREMOTE] = TARGET_EREMOTE, 292 [ENOLINK] = TARGET_ENOLINK, 293 [EADV] = TARGET_EADV, 294 [ESRMNT] = TARGET_ESRMNT, 295 [ECOMM] = TARGET_ECOMM, 296 [EPROTO] = TARGET_EPROTO, 297 [EDOTDOT] = TARGET_EDOTDOT, 298 [EMULTIHOP] = TARGET_EMULTIHOP, 299 [EBADMSG] = TARGET_EBADMSG, 300 [ENAMETOOLONG] = TARGET_ENAMETOOLONG, 301 [EOVERFLOW] = TARGET_EOVERFLOW, 302 [ENOTUNIQ] = TARGET_ENOTUNIQ, 303 [EBADFD] = TARGET_EBADFD, 304 [EREMCHG] = TARGET_EREMCHG, 305 [ELIBACC] = TARGET_ELIBACC, 306 [ELIBBAD] = TARGET_ELIBBAD, 307 [ELIBSCN] = TARGET_ELIBSCN, 308 [ELIBMAX] = TARGET_ELIBMAX, 309 [ELIBEXEC] = TARGET_ELIBEXEC, 310 [EILSEQ] = TARGET_EILSEQ, 311 [ENOSYS] = TARGET_ENOSYS, 312 [ELOOP] = TARGET_ELOOP, 313 [ERESTART] = TARGET_ERESTART, 314 [ESTRPIPE] = TARGET_ESTRPIPE, 315 [ENOTEMPTY] = TARGET_ENOTEMPTY, 316 [EUSERS] = TARGET_EUSERS, 317 [ENOTSOCK] = TARGET_ENOTSOCK, 318 [EDESTADDRREQ] = TARGET_EDESTADDRREQ, 319 [EMSGSIZE] = TARGET_EMSGSIZE, 320 [EPROTOTYPE] = TARGET_EPROTOTYPE, 321 [ENOPROTOOPT] = TARGET_ENOPROTOOPT, 322 [EPROTONOSUPPORT] = TARGET_EPROTONOSUPPORT, 323 [ESOCKTNOSUPPORT] = TARGET_ESOCKTNOSUPPORT, 324 [EOPNOTSUPP] = TARGET_EOPNOTSUPP, 325 [EPFNOSUPPORT] = TARGET_EPFNOSUPPORT, 326 [EAFNOSUPPORT] = TARGET_EAFNOSUPPORT, 327 [EADDRINUSE] = TARGET_EADDRINUSE, 328 [EADDRNOTAVAIL] = TARGET_EADDRNOTAVAIL, 329 [ENETDOWN] = TARGET_ENETDOWN, 330 [ENETUNREACH] = TARGET_ENETUNREACH, 331 [ENETRESET] = TARGET_ENETRESET, 332 [ECONNABORTED] = TARGET_ECONNABORTED, 333 [ECONNRESET] = TARGET_ECONNRESET, 334 [ENOBUFS] = TARGET_ENOBUFS, 335 [EISCONN] = TARGET_EISCONN, 336 [ENOTCONN] = TARGET_ENOTCONN, 337 [EUCLEAN] = TARGET_EUCLEAN, 338 [ENOTNAM] = TARGET_ENOTNAM, 339 [ENAVAIL] = TARGET_ENAVAIL, 340 [EISNAM] = TARGET_EISNAM, 341 [EREMOTEIO] = TARGET_EREMOTEIO, 342 [ESHUTDOWN] = TARGET_ESHUTDOWN, 343 [ETOOMANYREFS] = TARGET_ETOOMANYREFS, 344 [ETIMEDOUT] = TARGET_ETIMEDOUT, 345 [ECONNREFUSED] = TARGET_ECONNREFUSED, 346 [EHOSTDOWN] = TARGET_EHOSTDOWN, 347 [EHOSTUNREACH] = TARGET_EHOSTUNREACH, 348 [EALREADY] = TARGET_EALREADY, 349 [EINPROGRESS] = TARGET_EINPROGRESS, 350 [ESTALE] = TARGET_ESTALE, 351 [ECANCELED] = TARGET_ECANCELED, 352 [ENOMEDIUM] = TARGET_ENOMEDIUM, 353 [EMEDIUMTYPE] = TARGET_EMEDIUMTYPE, 354 #ifdef ENOKEY 355 [ENOKEY] = TARGET_ENOKEY, 356 #endif 357 #ifdef EKEYEXPIRED 358 [EKEYEXPIRED] = TARGET_EKEYEXPIRED, 359 #endif 360 #ifdef EKEYREVOKED 361 [EKEYREVOKED] = TARGET_EKEYREVOKED, 362 #endif 363 #ifdef EKEYREJECTED 364 [EKEYREJECTED] = TARGET_EKEYREJECTED, 365 #endif 366 #ifdef EOWNERDEAD 367 [EOWNERDEAD] = TARGET_EOWNERDEAD, 368 #endif 369 #ifdef ENOTRECOVERABLE 370 [ENOTRECOVERABLE] = TARGET_ENOTRECOVERABLE, 371 #endif 372 }; 373 374 static inline int host_to_target_errno(int err) 375 { 376 if(host_to_target_errno_table[err]) 377 return host_to_target_errno_table[err]; 378 return err; 379 } 380 381 static inline int target_to_host_errno(int err) 382 { 383 if (target_to_host_errno_table[err]) 384 return target_to_host_errno_table[err]; 385 return err; 386 } 387 388 static inline abi_long get_errno(abi_long ret) 389 { 390 if (ret == -1) 391 return -host_to_target_errno(errno); 392 else 393 return ret; 394 } 395 396 static inline int is_error(abi_long ret) 397 { 398 return (abi_ulong)ret >= (abi_ulong)(-4096); 399 } 400 401 char *target_strerror(int err) 402 { 403 return strerror(target_to_host_errno(err)); 404 } 405 406 static abi_ulong target_brk; 407 static abi_ulong target_original_brk; 408 409 void target_set_brk(abi_ulong new_brk) 410 { 411 target_original_brk = target_brk = HOST_PAGE_ALIGN(new_brk); 412 } 413 414 /* do_brk() must return target values and target errnos. */ 415 abi_long do_brk(abi_ulong new_brk) 416 { 417 abi_ulong brk_page; 418 abi_long mapped_addr; 419 int new_alloc_size; 420 421 if (!new_brk) 422 return target_brk; 423 if (new_brk < target_original_brk) 424 return target_brk; 425 426 brk_page = HOST_PAGE_ALIGN(target_brk); 427 428 /* If the new brk is less than this, set it and we're done... */ 429 if (new_brk < brk_page) { 430 target_brk = new_brk; 431 return target_brk; 432 } 433 434 /* We need to allocate more memory after the brk... */ 435 new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1); 436 mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size, 437 PROT_READ|PROT_WRITE, 438 MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0)); 439 440 if (!is_error(mapped_addr)) 441 target_brk = new_brk; 442 443 return target_brk; 444 } 445 446 static inline abi_long copy_from_user_fdset(fd_set *fds, 447 abi_ulong target_fds_addr, 448 int n) 449 { 450 int i, nw, j, k; 451 abi_ulong b, *target_fds; 452 453 nw = (n + TARGET_ABI_BITS - 1) / TARGET_ABI_BITS; 454 if (!(target_fds = lock_user(VERIFY_READ, 455 target_fds_addr, 456 sizeof(abi_ulong) * nw, 457 1))) 458 return -TARGET_EFAULT; 459 460 FD_ZERO(fds); 461 k = 0; 462 for (i = 0; i < nw; i++) { 463 /* grab the abi_ulong */ 464 __get_user(b, &target_fds[i]); 465 for (j = 0; j < TARGET_ABI_BITS; j++) { 466 /* check the bit inside the abi_ulong */ 467 if ((b >> j) & 1) 468 FD_SET(k, fds); 469 k++; 470 } 471 } 472 473 unlock_user(target_fds, target_fds_addr, 0); 474 475 return 0; 476 } 477 478 static inline abi_long copy_to_user_fdset(abi_ulong target_fds_addr, 479 const fd_set *fds, 480 int n) 481 { 482 int i, nw, j, k; 483 abi_long v; 484 abi_ulong *target_fds; 485 486 nw = (n + TARGET_ABI_BITS - 1) / TARGET_ABI_BITS; 487 if (!(target_fds = lock_user(VERIFY_WRITE, 488 target_fds_addr, 489 sizeof(abi_ulong) * nw, 490 0))) 491 return -TARGET_EFAULT; 492 493 k = 0; 494 for (i = 0; i < nw; i++) { 495 v = 0; 496 for (j = 0; j < TARGET_ABI_BITS; j++) { 497 v |= ((FD_ISSET(k, fds) != 0) << j); 498 k++; 499 } 500 __put_user(v, &target_fds[i]); 501 } 502 503 unlock_user(target_fds, target_fds_addr, sizeof(abi_ulong) * nw); 504 505 return 0; 506 } 507 508 #if defined(__alpha__) 509 #define HOST_HZ 1024 510 #else 511 #define HOST_HZ 100 512 #endif 513 514 static inline abi_long host_to_target_clock_t(long ticks) 515 { 516 #if HOST_HZ == TARGET_HZ 517 return ticks; 518 #else 519 return ((int64_t)ticks * TARGET_HZ) / HOST_HZ; 520 #endif 521 } 522 523 static inline abi_long host_to_target_rusage(abi_ulong target_addr, 524 const struct rusage *rusage) 525 { 526 struct target_rusage *target_rusage; 527 528 if (!lock_user_struct(VERIFY_WRITE, target_rusage, target_addr, 0)) 529 return -TARGET_EFAULT; 530 target_rusage->ru_utime.tv_sec = tswapl(rusage->ru_utime.tv_sec); 531 target_rusage->ru_utime.tv_usec = tswapl(rusage->ru_utime.tv_usec); 532 target_rusage->ru_stime.tv_sec = tswapl(rusage->ru_stime.tv_sec); 533 target_rusage->ru_stime.tv_usec = tswapl(rusage->ru_stime.tv_usec); 534 target_rusage->ru_maxrss = tswapl(rusage->ru_maxrss); 535 target_rusage->ru_ixrss = tswapl(rusage->ru_ixrss); 536 target_rusage->ru_idrss = tswapl(rusage->ru_idrss); 537 target_rusage->ru_isrss = tswapl(rusage->ru_isrss); 538 target_rusage->ru_minflt = tswapl(rusage->ru_minflt); 539 target_rusage->ru_majflt = tswapl(rusage->ru_majflt); 540 target_rusage->ru_nswap = tswapl(rusage->ru_nswap); 541 target_rusage->ru_inblock = tswapl(rusage->ru_inblock); 542 target_rusage->ru_oublock = tswapl(rusage->ru_oublock); 543 target_rusage->ru_msgsnd = tswapl(rusage->ru_msgsnd); 544 target_rusage->ru_msgrcv = tswapl(rusage->ru_msgrcv); 545 target_rusage->ru_nsignals = tswapl(rusage->ru_nsignals); 546 target_rusage->ru_nvcsw = tswapl(rusage->ru_nvcsw); 547 target_rusage->ru_nivcsw = tswapl(rusage->ru_nivcsw); 548 unlock_user_struct(target_rusage, target_addr, 1); 549 550 return 0; 551 } 552 553 static inline abi_long copy_from_user_timeval(struct timeval *tv, 554 abi_ulong target_tv_addr) 555 { 556 struct target_timeval *target_tv; 557 558 if (!lock_user_struct(VERIFY_READ, target_tv, target_tv_addr, 1)) 559 return -TARGET_EFAULT; 560 561 __get_user(tv->tv_sec, &target_tv->tv_sec); 562 __get_user(tv->tv_usec, &target_tv->tv_usec); 563 564 unlock_user_struct(target_tv, target_tv_addr, 0); 565 566 return 0; 567 } 568 569 static inline abi_long copy_to_user_timeval(abi_ulong target_tv_addr, 570 const struct timeval *tv) 571 { 572 struct target_timeval *target_tv; 573 574 if (!lock_user_struct(VERIFY_WRITE, target_tv, target_tv_addr, 0)) 575 return -TARGET_EFAULT; 576 577 __put_user(tv->tv_sec, &target_tv->tv_sec); 578 __put_user(tv->tv_usec, &target_tv->tv_usec); 579 580 unlock_user_struct(target_tv, target_tv_addr, 1); 581 582 return 0; 583 } 584 585 586 /* do_select() must return target values and target errnos. */ 587 static abi_long do_select(int n, 588 abi_ulong rfd_addr, abi_ulong wfd_addr, 589 abi_ulong efd_addr, abi_ulong target_tv_addr) 590 { 591 fd_set rfds, wfds, efds; 592 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr; 593 struct timeval tv, *tv_ptr; 594 abi_long ret; 595 596 if (rfd_addr) { 597 if (copy_from_user_fdset(&rfds, rfd_addr, n)) 598 return -TARGET_EFAULT; 599 rfds_ptr = &rfds; 600 } else { 601 rfds_ptr = NULL; 602 } 603 if (wfd_addr) { 604 if (copy_from_user_fdset(&wfds, wfd_addr, n)) 605 return -TARGET_EFAULT; 606 wfds_ptr = &wfds; 607 } else { 608 wfds_ptr = NULL; 609 } 610 if (efd_addr) { 611 if (copy_from_user_fdset(&efds, efd_addr, n)) 612 return -TARGET_EFAULT; 613 efds_ptr = &efds; 614 } else { 615 efds_ptr = NULL; 616 } 617 618 if (target_tv_addr) { 619 if (copy_from_user_timeval(&tv, target_tv_addr)) 620 return -TARGET_EFAULT; 621 tv_ptr = &tv; 622 } else { 623 tv_ptr = NULL; 624 } 625 626 ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr)); 627 628 if (!is_error(ret)) { 629 if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n)) 630 return -TARGET_EFAULT; 631 if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n)) 632 return -TARGET_EFAULT; 633 if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n)) 634 return -TARGET_EFAULT; 635 636 if (target_tv_addr && copy_to_user_timeval(target_tv_addr, &tv)) 637 return -TARGET_EFAULT; 638 } 639 640 return ret; 641 } 642 643 static inline abi_long target_to_host_sockaddr(struct sockaddr *addr, 644 abi_ulong target_addr, 645 socklen_t len) 646 { 647 struct target_sockaddr *target_saddr; 648 649 target_saddr = lock_user(VERIFY_READ, target_addr, len, 1); 650 if (!target_saddr) 651 return -TARGET_EFAULT; 652 memcpy(addr, target_saddr, len); 653 addr->sa_family = tswap16(target_saddr->sa_family); 654 unlock_user(target_saddr, target_addr, 0); 655 656 return 0; 657 } 658 659 static inline abi_long host_to_target_sockaddr(abi_ulong target_addr, 660 struct sockaddr *addr, 661 socklen_t len) 662 { 663 struct target_sockaddr *target_saddr; 664 665 target_saddr = lock_user(VERIFY_WRITE, target_addr, len, 0); 666 if (!target_saddr) 667 return -TARGET_EFAULT; 668 memcpy(target_saddr, addr, len); 669 target_saddr->sa_family = tswap16(addr->sa_family); 670 unlock_user(target_saddr, target_addr, len); 671 672 return 0; 673 } 674 675 /* ??? Should this also swap msgh->name? */ 676 static inline abi_long target_to_host_cmsg(struct msghdr *msgh, 677 struct target_msghdr *target_msgh) 678 { 679 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh); 680 abi_long msg_controllen; 681 abi_ulong target_cmsg_addr; 682 struct target_cmsghdr *target_cmsg; 683 socklen_t space = 0; 684 685 msg_controllen = tswapl(target_msgh->msg_controllen); 686 if (msg_controllen < sizeof (struct target_cmsghdr)) 687 goto the_end; 688 target_cmsg_addr = tswapl(target_msgh->msg_control); 689 target_cmsg = lock_user(VERIFY_READ, target_cmsg_addr, msg_controllen, 1); 690 if (!target_cmsg) 691 return -TARGET_EFAULT; 692 693 while (cmsg && target_cmsg) { 694 void *data = CMSG_DATA(cmsg); 695 void *target_data = TARGET_CMSG_DATA(target_cmsg); 696 697 int len = tswapl(target_cmsg->cmsg_len) 698 - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr)); 699 700 space += CMSG_SPACE(len); 701 if (space > msgh->msg_controllen) { 702 space -= CMSG_SPACE(len); 703 gemu_log("Host cmsg overflow\n"); 704 break; 705 } 706 707 cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level); 708 cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type); 709 cmsg->cmsg_len = CMSG_LEN(len); 710 711 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) { 712 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type); 713 memcpy(data, target_data, len); 714 } else { 715 int *fd = (int *)data; 716 int *target_fd = (int *)target_data; 717 int i, numfds = len / sizeof(int); 718 719 for (i = 0; i < numfds; i++) 720 fd[i] = tswap32(target_fd[i]); 721 } 722 723 cmsg = CMSG_NXTHDR(msgh, cmsg); 724 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg); 725 } 726 unlock_user(target_cmsg, target_cmsg_addr, 0); 727 the_end: 728 msgh->msg_controllen = space; 729 return 0; 730 } 731 732 /* ??? Should this also swap msgh->name? */ 733 static inline abi_long host_to_target_cmsg(struct target_msghdr *target_msgh, 734 struct msghdr *msgh) 735 { 736 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh); 737 abi_long msg_controllen; 738 abi_ulong target_cmsg_addr; 739 struct target_cmsghdr *target_cmsg; 740 socklen_t space = 0; 741 742 msg_controllen = tswapl(target_msgh->msg_controllen); 743 if (msg_controllen < sizeof (struct target_cmsghdr)) 744 goto the_end; 745 target_cmsg_addr = tswapl(target_msgh->msg_control); 746 target_cmsg = lock_user(VERIFY_WRITE, target_cmsg_addr, msg_controllen, 0); 747 if (!target_cmsg) 748 return -TARGET_EFAULT; 749 750 while (cmsg && target_cmsg) { 751 void *data = CMSG_DATA(cmsg); 752 void *target_data = TARGET_CMSG_DATA(target_cmsg); 753 754 int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr)); 755 756 space += TARGET_CMSG_SPACE(len); 757 if (space > msg_controllen) { 758 space -= TARGET_CMSG_SPACE(len); 759 gemu_log("Target cmsg overflow\n"); 760 break; 761 } 762 763 target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level); 764 target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type); 765 target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len)); 766 767 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) { 768 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type); 769 memcpy(target_data, data, len); 770 } else { 771 int *fd = (int *)data; 772 int *target_fd = (int *)target_data; 773 int i, numfds = len / sizeof(int); 774 775 for (i = 0; i < numfds; i++) 776 target_fd[i] = tswap32(fd[i]); 777 } 778 779 cmsg = CMSG_NXTHDR(msgh, cmsg); 780 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg); 781 } 782 unlock_user(target_cmsg, target_cmsg_addr, space); 783 the_end: 784 target_msgh->msg_controllen = tswapl(space); 785 return 0; 786 } 787 788 /* do_setsockopt() Must return target values and target errnos. */ 789 static abi_long do_setsockopt(int sockfd, int level, int optname, 790 abi_ulong optval_addr, socklen_t optlen) 791 { 792 abi_long ret; 793 int val; 794 795 switch(level) { 796 case SOL_TCP: 797 /* TCP options all take an 'int' value. */ 798 if (optlen < sizeof(uint32_t)) 799 return -TARGET_EINVAL; 800 801 if (get_user_u32(val, optval_addr)) 802 return -TARGET_EFAULT; 803 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val))); 804 break; 805 case SOL_IP: 806 switch(optname) { 807 case IP_TOS: 808 case IP_TTL: 809 case IP_HDRINCL: 810 case IP_ROUTER_ALERT: 811 case IP_RECVOPTS: 812 case IP_RETOPTS: 813 case IP_PKTINFO: 814 case IP_MTU_DISCOVER: 815 case IP_RECVERR: 816 case IP_RECVTOS: 817 #ifdef IP_FREEBIND 818 case IP_FREEBIND: 819 #endif 820 case IP_MULTICAST_TTL: 821 case IP_MULTICAST_LOOP: 822 val = 0; 823 if (optlen >= sizeof(uint32_t)) { 824 if (get_user_u32(val, optval_addr)) 825 return -TARGET_EFAULT; 826 } else if (optlen >= 1) { 827 if (get_user_u8(val, optval_addr)) 828 return -TARGET_EFAULT; 829 } 830 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val))); 831 break; 832 default: 833 goto unimplemented; 834 } 835 break; 836 case TARGET_SOL_SOCKET: 837 switch (optname) { 838 /* Options with 'int' argument. */ 839 case TARGET_SO_DEBUG: 840 optname = SO_DEBUG; 841 break; 842 case TARGET_SO_REUSEADDR: 843 optname = SO_REUSEADDR; 844 break; 845 case TARGET_SO_TYPE: 846 optname = SO_TYPE; 847 break; 848 case TARGET_SO_ERROR: 849 optname = SO_ERROR; 850 break; 851 case TARGET_SO_DONTROUTE: 852 optname = SO_DONTROUTE; 853 break; 854 case TARGET_SO_BROADCAST: 855 optname = SO_BROADCAST; 856 break; 857 case TARGET_SO_SNDBUF: 858 optname = SO_SNDBUF; 859 break; 860 case TARGET_SO_RCVBUF: 861 optname = SO_RCVBUF; 862 break; 863 case TARGET_SO_KEEPALIVE: 864 optname = SO_KEEPALIVE; 865 break; 866 case TARGET_SO_OOBINLINE: 867 optname = SO_OOBINLINE; 868 break; 869 case TARGET_SO_NO_CHECK: 870 optname = SO_NO_CHECK; 871 break; 872 case TARGET_SO_PRIORITY: 873 optname = SO_PRIORITY; 874 break; 875 #ifdef SO_BSDCOMPAT 876 case TARGET_SO_BSDCOMPAT: 877 optname = SO_BSDCOMPAT; 878 break; 879 #endif 880 case TARGET_SO_PASSCRED: 881 optname = SO_PASSCRED; 882 break; 883 case TARGET_SO_TIMESTAMP: 884 optname = SO_TIMESTAMP; 885 break; 886 case TARGET_SO_RCVLOWAT: 887 optname = SO_RCVLOWAT; 888 break; 889 case TARGET_SO_RCVTIMEO: 890 optname = SO_RCVTIMEO; 891 break; 892 case TARGET_SO_SNDTIMEO: 893 optname = SO_SNDTIMEO; 894 break; 895 break; 896 default: 897 goto unimplemented; 898 } 899 if (optlen < sizeof(uint32_t)) 900 return -TARGET_EINVAL; 901 902 if (get_user_u32(val, optval_addr)) 903 return -TARGET_EFAULT; 904 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val))); 905 break; 906 default: 907 unimplemented: 908 gemu_log("Unsupported setsockopt level=%d optname=%d \n", level, optname); 909 ret = -TARGET_ENOPROTOOPT; 910 } 911 return ret; 912 } 913 914 /* do_getsockopt() Must return target values and target errnos. */ 915 static abi_long do_getsockopt(int sockfd, int level, int optname, 916 abi_ulong optval_addr, abi_ulong optlen) 917 { 918 abi_long ret; 919 int len, lv, val; 920 921 switch(level) { 922 case TARGET_SOL_SOCKET: 923 level = SOL_SOCKET; 924 switch (optname) { 925 case TARGET_SO_LINGER: 926 case TARGET_SO_RCVTIMEO: 927 case TARGET_SO_SNDTIMEO: 928 case TARGET_SO_PEERCRED: 929 case TARGET_SO_PEERNAME: 930 /* These don't just return a single integer */ 931 goto unimplemented; 932 default: 933 goto int_case; 934 } 935 break; 936 case SOL_TCP: 937 /* TCP options all take an 'int' value. */ 938 int_case: 939 if (get_user_u32(len, optlen)) 940 return -TARGET_EFAULT; 941 if (len < 0) 942 return -TARGET_EINVAL; 943 lv = sizeof(int); 944 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv)); 945 if (ret < 0) 946 return ret; 947 val = tswap32(val); 948 if (len > lv) 949 len = lv; 950 if (len == 4) { 951 if (put_user_u32(val, optval_addr)) 952 return -TARGET_EFAULT; 953 } else { 954 if (put_user_u8(val, optval_addr)) 955 return -TARGET_EFAULT; 956 } 957 if (put_user_u32(len, optlen)) 958 return -TARGET_EFAULT; 959 break; 960 case SOL_IP: 961 switch(optname) { 962 case IP_TOS: 963 case IP_TTL: 964 case IP_HDRINCL: 965 case IP_ROUTER_ALERT: 966 case IP_RECVOPTS: 967 case IP_RETOPTS: 968 case IP_PKTINFO: 969 case IP_MTU_DISCOVER: 970 case IP_RECVERR: 971 case IP_RECVTOS: 972 #ifdef IP_FREEBIND 973 case IP_FREEBIND: 974 #endif 975 case IP_MULTICAST_TTL: 976 case IP_MULTICAST_LOOP: 977 if (get_user_u32(len, optlen)) 978 return -TARGET_EFAULT; 979 if (len < 0) 980 return -TARGET_EINVAL; 981 lv = sizeof(int); 982 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv)); 983 if (ret < 0) 984 return ret; 985 if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) { 986 len = 1; 987 if (put_user_u32(len, optlen) 988 || put_user_u8(val, optval_addr)) 989 return -TARGET_EFAULT; 990 } else { 991 if (len > sizeof(int)) 992 len = sizeof(int); 993 if (put_user_u32(len, optlen) 994 || put_user_u32(val, optval_addr)) 995 return -TARGET_EFAULT; 996 } 997 break; 998 default: 999 ret = -TARGET_ENOPROTOOPT; 1000 break; 1001 } 1002 break; 1003 default: 1004 unimplemented: 1005 gemu_log("getsockopt level=%d optname=%d not yet supported\n", 1006 level, optname); 1007 ret = -TARGET_EOPNOTSUPP; 1008 break; 1009 } 1010 return ret; 1011 } 1012 1013 /* FIXME 1014 * lock_iovec()/unlock_iovec() have a return code of 0 for success where 1015 * other lock functions have a return code of 0 for failure. 1016 */ 1017 static abi_long lock_iovec(int type, struct iovec *vec, abi_ulong target_addr, 1018 int count, int copy) 1019 { 1020 struct target_iovec *target_vec; 1021 abi_ulong base; 1022 int i, j; 1023 1024 target_vec = lock_user(VERIFY_READ, target_addr, count * sizeof(struct target_iovec), 1); 1025 if (!target_vec) 1026 return -TARGET_EFAULT; 1027 for(i = 0;i < count; i++) { 1028 base = tswapl(target_vec[i].iov_base); 1029 vec[i].iov_len = tswapl(target_vec[i].iov_len); 1030 if (vec[i].iov_len != 0) { 1031 vec[i].iov_base = lock_user(type, base, vec[i].iov_len, copy); 1032 if (!vec[i].iov_base && vec[i].iov_len) 1033 goto fail; 1034 } else { 1035 /* zero length pointer is ignored */ 1036 vec[i].iov_base = NULL; 1037 } 1038 } 1039 unlock_user (target_vec, target_addr, 0); 1040 return 0; 1041 fail: 1042 /* failure - unwind locks */ 1043 for (j = 0; j < i; j++) { 1044 base = tswapl(target_vec[j].iov_base); 1045 unlock_user(vec[j].iov_base, base, 0); 1046 } 1047 unlock_user (target_vec, target_addr, 0); 1048 return -TARGET_EFAULT; 1049 } 1050 1051 static abi_long unlock_iovec(struct iovec *vec, abi_ulong target_addr, 1052 int count, int copy) 1053 { 1054 struct target_iovec *target_vec; 1055 abi_ulong base; 1056 int i; 1057 1058 target_vec = lock_user(VERIFY_READ, target_addr, count * sizeof(struct target_iovec), 1); 1059 if (!target_vec) 1060 return -TARGET_EFAULT; 1061 for(i = 0;i < count; i++) { 1062 base = tswapl(target_vec[i].iov_base); 1063 unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0); 1064 } 1065 unlock_user (target_vec, target_addr, 0); 1066 1067 return 0; 1068 } 1069 1070 /* do_socket() Must return target values and target errnos. */ 1071 static abi_long do_socket(int domain, int type, int protocol) 1072 { 1073 #if defined(TARGET_MIPS) 1074 switch(type) { 1075 case TARGET_SOCK_DGRAM: 1076 type = SOCK_DGRAM; 1077 break; 1078 case TARGET_SOCK_STREAM: 1079 type = SOCK_STREAM; 1080 break; 1081 case TARGET_SOCK_RAW: 1082 type = SOCK_RAW; 1083 break; 1084 case TARGET_SOCK_RDM: 1085 type = SOCK_RDM; 1086 break; 1087 case TARGET_SOCK_SEQPACKET: 1088 type = SOCK_SEQPACKET; 1089 break; 1090 case TARGET_SOCK_PACKET: 1091 type = SOCK_PACKET; 1092 break; 1093 } 1094 #endif 1095 if (domain == PF_NETLINK) 1096 return -EAFNOSUPPORT; /* do not NETLINK socket connections possible */ 1097 return get_errno(socket(domain, type, protocol)); 1098 } 1099 1100 /* do_bind() Must return target values and target errnos. */ 1101 static abi_long do_bind(int sockfd, abi_ulong target_addr, 1102 socklen_t addrlen) 1103 { 1104 void *addr = alloca(addrlen); 1105 1106 target_to_host_sockaddr(addr, target_addr, addrlen); 1107 return get_errno(bind(sockfd, addr, addrlen)); 1108 } 1109 1110 /* do_connect() Must return target values and target errnos. */ 1111 static abi_long do_connect(int sockfd, abi_ulong target_addr, 1112 socklen_t addrlen) 1113 { 1114 void *addr = alloca(addrlen); 1115 1116 target_to_host_sockaddr(addr, target_addr, addrlen); 1117 return get_errno(connect(sockfd, addr, addrlen)); 1118 } 1119 1120 /* do_sendrecvmsg() Must return target values and target errnos. */ 1121 static abi_long do_sendrecvmsg(int fd, abi_ulong target_msg, 1122 int flags, int send) 1123 { 1124 abi_long ret; 1125 struct target_msghdr *msgp; 1126 struct msghdr msg; 1127 int count; 1128 struct iovec *vec; 1129 abi_ulong target_vec; 1130 1131 /* FIXME */ 1132 if (!lock_user_struct(send ? VERIFY_READ : VERIFY_WRITE, 1133 msgp, 1134 target_msg, 1135 send ? 1 : 0)) 1136 return -TARGET_EFAULT; 1137 if (msgp->msg_name) { 1138 msg.msg_namelen = tswap32(msgp->msg_namelen); 1139 msg.msg_name = alloca(msg.msg_namelen); 1140 target_to_host_sockaddr(msg.msg_name, tswapl(msgp->msg_name), 1141 msg.msg_namelen); 1142 } else { 1143 msg.msg_name = NULL; 1144 msg.msg_namelen = 0; 1145 } 1146 msg.msg_controllen = 2 * tswapl(msgp->msg_controllen); 1147 msg.msg_control = alloca(msg.msg_controllen); 1148 msg.msg_flags = tswap32(msgp->msg_flags); 1149 1150 count = tswapl(msgp->msg_iovlen); 1151 vec = alloca(count * sizeof(struct iovec)); 1152 target_vec = tswapl(msgp->msg_iov); 1153 lock_iovec(send ? VERIFY_READ : VERIFY_WRITE, vec, target_vec, count, send); 1154 msg.msg_iovlen = count; 1155 msg.msg_iov = vec; 1156 1157 if (send) { 1158 ret = target_to_host_cmsg(&msg, msgp); 1159 if (ret == 0) 1160 ret = get_errno(sendmsg(fd, &msg, flags)); 1161 } else { 1162 ret = get_errno(recvmsg(fd, &msg, flags)); 1163 if (!is_error(ret)) 1164 ret = host_to_target_cmsg(msgp, &msg); 1165 } 1166 unlock_iovec(vec, target_vec, count, !send); 1167 unlock_user_struct(msgp, target_msg, send ? 0 : 1); 1168 return ret; 1169 } 1170 1171 /* do_accept() Must return target values and target errnos. */ 1172 static abi_long do_accept(int fd, abi_ulong target_addr, 1173 abi_ulong target_addrlen_addr) 1174 { 1175 socklen_t addrlen; 1176 void *addr; 1177 abi_long ret; 1178 1179 if (get_user_u32(addrlen, target_addrlen_addr)) 1180 return -TARGET_EFAULT; 1181 1182 addr = alloca(addrlen); 1183 1184 ret = get_errno(accept(fd, addr, &addrlen)); 1185 if (!is_error(ret)) { 1186 host_to_target_sockaddr(target_addr, addr, addrlen); 1187 if (put_user_u32(addrlen, target_addrlen_addr)) 1188 ret = -TARGET_EFAULT; 1189 } 1190 return ret; 1191 } 1192 1193 /* do_getpeername() Must return target values and target errnos. */ 1194 static abi_long do_getpeername(int fd, abi_ulong target_addr, 1195 abi_ulong target_addrlen_addr) 1196 { 1197 socklen_t addrlen; 1198 void *addr; 1199 abi_long ret; 1200 1201 if (get_user_u32(addrlen, target_addrlen_addr)) 1202 return -TARGET_EFAULT; 1203 1204 addr = alloca(addrlen); 1205 1206 ret = get_errno(getpeername(fd, addr, &addrlen)); 1207 if (!is_error(ret)) { 1208 host_to_target_sockaddr(target_addr, addr, addrlen); 1209 if (put_user_u32(addrlen, target_addrlen_addr)) 1210 ret = -TARGET_EFAULT; 1211 } 1212 return ret; 1213 } 1214 1215 /* do_getsockname() Must return target values and target errnos. */ 1216 static abi_long do_getsockname(int fd, abi_ulong target_addr, 1217 abi_ulong target_addrlen_addr) 1218 { 1219 socklen_t addrlen; 1220 void *addr; 1221 abi_long ret; 1222 1223 if (get_user_u32(addrlen, target_addrlen_addr)) 1224 return -TARGET_EFAULT; 1225 1226 addr = alloca(addrlen); 1227 1228 ret = get_errno(getsockname(fd, addr, &addrlen)); 1229 if (!is_error(ret)) { 1230 host_to_target_sockaddr(target_addr, addr, addrlen); 1231 if (put_user_u32(addrlen, target_addrlen_addr)) 1232 ret = -TARGET_EFAULT; 1233 } 1234 return ret; 1235 } 1236 1237 /* do_socketpair() Must return target values and target errnos. */ 1238 static abi_long do_socketpair(int domain, int type, int protocol, 1239 abi_ulong target_tab_addr) 1240 { 1241 int tab[2]; 1242 abi_long ret; 1243 1244 ret = get_errno(socketpair(domain, type, protocol, tab)); 1245 if (!is_error(ret)) { 1246 if (put_user_s32(tab[0], target_tab_addr) 1247 || put_user_s32(tab[1], target_tab_addr + sizeof(tab[0]))) 1248 ret = -TARGET_EFAULT; 1249 } 1250 return ret; 1251 } 1252 1253 /* do_sendto() Must return target values and target errnos. */ 1254 static abi_long do_sendto(int fd, abi_ulong msg, size_t len, int flags, 1255 abi_ulong target_addr, socklen_t addrlen) 1256 { 1257 void *addr; 1258 void *host_msg; 1259 abi_long ret; 1260 1261 host_msg = lock_user(VERIFY_READ, msg, len, 1); 1262 if (!host_msg) 1263 return -TARGET_EFAULT; 1264 if (target_addr) { 1265 addr = alloca(addrlen); 1266 target_to_host_sockaddr(addr, target_addr, addrlen); 1267 ret = get_errno(sendto(fd, host_msg, len, flags, addr, addrlen)); 1268 } else { 1269 ret = get_errno(send(fd, host_msg, len, flags)); 1270 } 1271 unlock_user(host_msg, msg, 0); 1272 return ret; 1273 } 1274 1275 /* do_recvfrom() Must return target values and target errnos. */ 1276 static abi_long do_recvfrom(int fd, abi_ulong msg, size_t len, int flags, 1277 abi_ulong target_addr, 1278 abi_ulong target_addrlen) 1279 { 1280 socklen_t addrlen; 1281 void *addr; 1282 void *host_msg; 1283 abi_long ret; 1284 1285 host_msg = lock_user(VERIFY_WRITE, msg, len, 0); 1286 if (!host_msg) 1287 return -TARGET_EFAULT; 1288 if (target_addr) { 1289 if (get_user_u32(addrlen, target_addrlen)) { 1290 ret = -TARGET_EFAULT; 1291 goto fail; 1292 } 1293 addr = alloca(addrlen); 1294 ret = get_errno(recvfrom(fd, host_msg, len, flags, addr, &addrlen)); 1295 } else { 1296 addr = NULL; /* To keep compiler quiet. */ 1297 ret = get_errno(recv(fd, host_msg, len, flags)); 1298 } 1299 if (!is_error(ret)) { 1300 if (target_addr) { 1301 host_to_target_sockaddr(target_addr, addr, addrlen); 1302 if (put_user_u32(addrlen, target_addrlen)) { 1303 ret = -TARGET_EFAULT; 1304 goto fail; 1305 } 1306 } 1307 unlock_user(host_msg, msg, len); 1308 } else { 1309 fail: 1310 unlock_user(host_msg, msg, 0); 1311 } 1312 return ret; 1313 } 1314 1315 #ifdef TARGET_NR_socketcall 1316 /* do_socketcall() Must return target values and target errnos. */ 1317 static abi_long do_socketcall(int num, abi_ulong vptr) 1318 { 1319 abi_long ret; 1320 const int n = sizeof(abi_ulong); 1321 1322 switch(num) { 1323 case SOCKOP_socket: 1324 { 1325 int domain, type, protocol; 1326 1327 if (get_user_s32(domain, vptr) 1328 || get_user_s32(type, vptr + n) 1329 || get_user_s32(protocol, vptr + 2 * n)) 1330 return -TARGET_EFAULT; 1331 1332 ret = do_socket(domain, type, protocol); 1333 } 1334 break; 1335 case SOCKOP_bind: 1336 { 1337 int sockfd; 1338 abi_ulong target_addr; 1339 socklen_t addrlen; 1340 1341 if (get_user_s32(sockfd, vptr) 1342 || get_user_ual(target_addr, vptr + n) 1343 || get_user_u32(addrlen, vptr + 2 * n)) 1344 return -TARGET_EFAULT; 1345 1346 ret = do_bind(sockfd, target_addr, addrlen); 1347 } 1348 break; 1349 case SOCKOP_connect: 1350 { 1351 int sockfd; 1352 abi_ulong target_addr; 1353 socklen_t addrlen; 1354 1355 if (get_user_s32(sockfd, vptr) 1356 || get_user_ual(target_addr, vptr + n) 1357 || get_user_u32(addrlen, vptr + 2 * n)) 1358 return -TARGET_EFAULT; 1359 1360 ret = do_connect(sockfd, target_addr, addrlen); 1361 } 1362 break; 1363 case SOCKOP_listen: 1364 { 1365 int sockfd, backlog; 1366 1367 if (get_user_s32(sockfd, vptr) 1368 || get_user_s32(backlog, vptr + n)) 1369 return -TARGET_EFAULT; 1370 1371 ret = get_errno(listen(sockfd, backlog)); 1372 } 1373 break; 1374 case SOCKOP_accept: 1375 { 1376 int sockfd; 1377 abi_ulong target_addr, target_addrlen; 1378 1379 if (get_user_s32(sockfd, vptr) 1380 || get_user_ual(target_addr, vptr + n) 1381 || get_user_u32(target_addrlen, vptr + 2 * n)) 1382 return -TARGET_EFAULT; 1383 1384 ret = do_accept(sockfd, target_addr, target_addrlen); 1385 } 1386 break; 1387 case SOCKOP_getsockname: 1388 { 1389 int sockfd; 1390 abi_ulong target_addr, target_addrlen; 1391 1392 if (get_user_s32(sockfd, vptr) 1393 || get_user_ual(target_addr, vptr + n) 1394 || get_user_u32(target_addrlen, vptr + 2 * n)) 1395 return -TARGET_EFAULT; 1396 1397 ret = do_getsockname(sockfd, target_addr, target_addrlen); 1398 } 1399 break; 1400 case SOCKOP_getpeername: 1401 { 1402 int sockfd; 1403 abi_ulong target_addr, target_addrlen; 1404 1405 if (get_user_s32(sockfd, vptr) 1406 || get_user_ual(target_addr, vptr + n) 1407 || get_user_u32(target_addrlen, vptr + 2 * n)) 1408 return -TARGET_EFAULT; 1409 1410 ret = do_getpeername(sockfd, target_addr, target_addrlen); 1411 } 1412 break; 1413 case SOCKOP_socketpair: 1414 { 1415 int domain, type, protocol; 1416 abi_ulong tab; 1417 1418 if (get_user_s32(domain, vptr) 1419 || get_user_s32(type, vptr + n) 1420 || get_user_s32(protocol, vptr + 2 * n) 1421 || get_user_ual(tab, vptr + 3 * n)) 1422 return -TARGET_EFAULT; 1423 1424 ret = do_socketpair(domain, type, protocol, tab); 1425 } 1426 break; 1427 case SOCKOP_send: 1428 { 1429 int sockfd; 1430 abi_ulong msg; 1431 size_t len; 1432 int flags; 1433 1434 if (get_user_s32(sockfd, vptr) 1435 || get_user_ual(msg, vptr + n) 1436 || get_user_ual(len, vptr + 2 * n) 1437 || get_user_s32(flags, vptr + 3 * n)) 1438 return -TARGET_EFAULT; 1439 1440 ret = do_sendto(sockfd, msg, len, flags, 0, 0); 1441 } 1442 break; 1443 case SOCKOP_recv: 1444 { 1445 int sockfd; 1446 abi_ulong msg; 1447 size_t len; 1448 int flags; 1449 1450 if (get_user_s32(sockfd, vptr) 1451 || get_user_ual(msg, vptr + n) 1452 || get_user_ual(len, vptr + 2 * n) 1453 || get_user_s32(flags, vptr + 3 * n)) 1454 return -TARGET_EFAULT; 1455 1456 ret = do_recvfrom(sockfd, msg, len, flags, 0, 0); 1457 } 1458 break; 1459 case SOCKOP_sendto: 1460 { 1461 int sockfd; 1462 abi_ulong msg; 1463 size_t len; 1464 int flags; 1465 abi_ulong addr; 1466 socklen_t addrlen; 1467 1468 if (get_user_s32(sockfd, vptr) 1469 || get_user_ual(msg, vptr + n) 1470 || get_user_ual(len, vptr + 2 * n) 1471 || get_user_s32(flags, vptr + 3 * n) 1472 || get_user_ual(addr, vptr + 4 * n) 1473 || get_user_u32(addrlen, vptr + 5 * n)) 1474 return -TARGET_EFAULT; 1475 1476 ret = do_sendto(sockfd, msg, len, flags, addr, addrlen); 1477 } 1478 break; 1479 case SOCKOP_recvfrom: 1480 { 1481 int sockfd; 1482 abi_ulong msg; 1483 size_t len; 1484 int flags; 1485 abi_ulong addr; 1486 socklen_t addrlen; 1487 1488 if (get_user_s32(sockfd, vptr) 1489 || get_user_ual(msg, vptr + n) 1490 || get_user_ual(len, vptr + 2 * n) 1491 || get_user_s32(flags, vptr + 3 * n) 1492 || get_user_ual(addr, vptr + 4 * n) 1493 || get_user_u32(addrlen, vptr + 5 * n)) 1494 return -TARGET_EFAULT; 1495 1496 ret = do_recvfrom(sockfd, msg, len, flags, addr, addrlen); 1497 } 1498 break; 1499 case SOCKOP_shutdown: 1500 { 1501 int sockfd, how; 1502 1503 if (get_user_s32(sockfd, vptr) 1504 || get_user_s32(how, vptr + n)) 1505 return -TARGET_EFAULT; 1506 1507 ret = get_errno(shutdown(sockfd, how)); 1508 } 1509 break; 1510 case SOCKOP_sendmsg: 1511 case SOCKOP_recvmsg: 1512 { 1513 int fd; 1514 abi_ulong target_msg; 1515 int flags; 1516 1517 if (get_user_s32(fd, vptr) 1518 || get_user_ual(target_msg, vptr + n) 1519 || get_user_s32(flags, vptr + 2 * n)) 1520 return -TARGET_EFAULT; 1521 1522 ret = do_sendrecvmsg(fd, target_msg, flags, 1523 (num == SOCKOP_sendmsg)); 1524 } 1525 break; 1526 case SOCKOP_setsockopt: 1527 { 1528 int sockfd; 1529 int level; 1530 int optname; 1531 abi_ulong optval; 1532 socklen_t optlen; 1533 1534 if (get_user_s32(sockfd, vptr) 1535 || get_user_s32(level, vptr + n) 1536 || get_user_s32(optname, vptr + 2 * n) 1537 || get_user_ual(optval, vptr + 3 * n) 1538 || get_user_u32(optlen, vptr + 4 * n)) 1539 return -TARGET_EFAULT; 1540 1541 ret = do_setsockopt(sockfd, level, optname, optval, optlen); 1542 } 1543 break; 1544 case SOCKOP_getsockopt: 1545 { 1546 int sockfd; 1547 int level; 1548 int optname; 1549 abi_ulong optval; 1550 socklen_t optlen; 1551 1552 if (get_user_s32(sockfd, vptr) 1553 || get_user_s32(level, vptr + n) 1554 || get_user_s32(optname, vptr + 2 * n) 1555 || get_user_ual(optval, vptr + 3 * n) 1556 || get_user_u32(optlen, vptr + 4 * n)) 1557 return -TARGET_EFAULT; 1558 1559 ret = do_getsockopt(sockfd, level, optname, optval, optlen); 1560 } 1561 break; 1562 default: 1563 gemu_log("Unsupported socketcall: %d\n", num); 1564 ret = -TARGET_ENOSYS; 1565 break; 1566 } 1567 return ret; 1568 } 1569 #endif 1570 1571 #ifdef TARGET_NR_ipc 1572 #define N_SHM_REGIONS 32 1573 1574 static struct shm_region { 1575 abi_ulong start; 1576 abi_ulong size; 1577 } shm_regions[N_SHM_REGIONS]; 1578 1579 struct target_ipc_perm 1580 { 1581 abi_long __key; 1582 abi_ulong uid; 1583 abi_ulong gid; 1584 abi_ulong cuid; 1585 abi_ulong cgid; 1586 unsigned short int mode; 1587 unsigned short int __pad1; 1588 unsigned short int __seq; 1589 unsigned short int __pad2; 1590 abi_ulong __unused1; 1591 abi_ulong __unused2; 1592 }; 1593 1594 struct target_semid_ds 1595 { 1596 struct target_ipc_perm sem_perm; 1597 abi_ulong sem_otime; 1598 abi_ulong __unused1; 1599 abi_ulong sem_ctime; 1600 abi_ulong __unused2; 1601 abi_ulong sem_nsems; 1602 abi_ulong __unused3; 1603 abi_ulong __unused4; 1604 }; 1605 1606 static inline abi_long target_to_host_ipc_perm(struct ipc_perm *host_ip, 1607 abi_ulong target_addr) 1608 { 1609 struct target_ipc_perm *target_ip; 1610 struct target_semid_ds *target_sd; 1611 1612 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1)) 1613 return -TARGET_EFAULT; 1614 target_ip=&(target_sd->sem_perm); 1615 host_ip->__key = tswapl(target_ip->__key); 1616 host_ip->uid = tswapl(target_ip->uid); 1617 host_ip->gid = tswapl(target_ip->gid); 1618 host_ip->cuid = tswapl(target_ip->cuid); 1619 host_ip->cgid = tswapl(target_ip->cgid); 1620 host_ip->mode = tswapl(target_ip->mode); 1621 unlock_user_struct(target_sd, target_addr, 0); 1622 return 0; 1623 } 1624 1625 static inline abi_long host_to_target_ipc_perm(abi_ulong target_addr, 1626 struct ipc_perm *host_ip) 1627 { 1628 struct target_ipc_perm *target_ip; 1629 struct target_semid_ds *target_sd; 1630 1631 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0)) 1632 return -TARGET_EFAULT; 1633 target_ip = &(target_sd->sem_perm); 1634 target_ip->__key = tswapl(host_ip->__key); 1635 target_ip->uid = tswapl(host_ip->uid); 1636 target_ip->gid = tswapl(host_ip->gid); 1637 target_ip->cuid = tswapl(host_ip->cuid); 1638 target_ip->cgid = tswapl(host_ip->cgid); 1639 target_ip->mode = tswapl(host_ip->mode); 1640 unlock_user_struct(target_sd, target_addr, 1); 1641 return 0; 1642 } 1643 1644 static inline abi_long target_to_host_semid_ds(struct semid_ds *host_sd, 1645 abi_ulong target_addr) 1646 { 1647 struct target_semid_ds *target_sd; 1648 1649 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1)) 1650 return -TARGET_EFAULT; 1651 target_to_host_ipc_perm(&(host_sd->sem_perm),target_addr); 1652 host_sd->sem_nsems = tswapl(target_sd->sem_nsems); 1653 host_sd->sem_otime = tswapl(target_sd->sem_otime); 1654 host_sd->sem_ctime = tswapl(target_sd->sem_ctime); 1655 unlock_user_struct(target_sd, target_addr, 0); 1656 return 0; 1657 } 1658 1659 static inline abi_long host_to_target_semid_ds(abi_ulong target_addr, 1660 struct semid_ds *host_sd) 1661 { 1662 struct target_semid_ds *target_sd; 1663 1664 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0)) 1665 return -TARGET_EFAULT; 1666 host_to_target_ipc_perm(target_addr,&(host_sd->sem_perm)); 1667 target_sd->sem_nsems = tswapl(host_sd->sem_nsems); 1668 target_sd->sem_otime = tswapl(host_sd->sem_otime); 1669 target_sd->sem_ctime = tswapl(host_sd->sem_ctime); 1670 unlock_user_struct(target_sd, target_addr, 1); 1671 return 0; 1672 } 1673 1674 union semun { 1675 int val; 1676 struct semid_ds *buf; 1677 unsigned short *array; 1678 }; 1679 1680 union target_semun { 1681 int val; 1682 abi_long buf; 1683 unsigned short int *array; 1684 }; 1685 1686 static inline abi_long target_to_host_semun(int cmd, 1687 union semun *host_su, 1688 abi_ulong target_addr, 1689 struct semid_ds *ds) 1690 { 1691 union target_semun *target_su; 1692 1693 switch( cmd ) { 1694 case IPC_STAT: 1695 case IPC_SET: 1696 if (!lock_user_struct(VERIFY_READ, target_su, target_addr, 1)) 1697 return -TARGET_EFAULT; 1698 target_to_host_semid_ds(ds,target_su->buf); 1699 host_su->buf = ds; 1700 unlock_user_struct(target_su, target_addr, 0); 1701 break; 1702 case GETVAL: 1703 case SETVAL: 1704 if (!lock_user_struct(VERIFY_READ, target_su, target_addr, 1)) 1705 return -TARGET_EFAULT; 1706 host_su->val = tswapl(target_su->val); 1707 unlock_user_struct(target_su, target_addr, 0); 1708 break; 1709 case GETALL: 1710 case SETALL: 1711 if (!lock_user_struct(VERIFY_READ, target_su, target_addr, 1)) 1712 return -TARGET_EFAULT; 1713 *host_su->array = tswap16(*target_su->array); 1714 unlock_user_struct(target_su, target_addr, 0); 1715 break; 1716 default: 1717 gemu_log("semun operation not fully supported: %d\n", (int)cmd); 1718 } 1719 return 0; 1720 } 1721 1722 static inline abi_long host_to_target_semun(int cmd, 1723 abi_ulong target_addr, 1724 union semun *host_su, 1725 struct semid_ds *ds) 1726 { 1727 union target_semun *target_su; 1728 1729 switch( cmd ) { 1730 case IPC_STAT: 1731 case IPC_SET: 1732 if (lock_user_struct(VERIFY_WRITE, target_su, target_addr, 0)) 1733 return -TARGET_EFAULT; 1734 host_to_target_semid_ds(target_su->buf,ds); 1735 unlock_user_struct(target_su, target_addr, 1); 1736 break; 1737 case GETVAL: 1738 case SETVAL: 1739 if (lock_user_struct(VERIFY_WRITE, target_su, target_addr, 0)) 1740 return -TARGET_EFAULT; 1741 target_su->val = tswapl(host_su->val); 1742 unlock_user_struct(target_su, target_addr, 1); 1743 break; 1744 case GETALL: 1745 case SETALL: 1746 if (lock_user_struct(VERIFY_WRITE, target_su, target_addr, 0)) 1747 return -TARGET_EFAULT; 1748 *target_su->array = tswap16(*host_su->array); 1749 unlock_user_struct(target_su, target_addr, 1); 1750 break; 1751 default: 1752 gemu_log("semun operation not fully supported: %d\n", (int)cmd); 1753 } 1754 return 0; 1755 } 1756 1757 static inline abi_long do_semctl(int first, int second, int third, 1758 abi_long ptr) 1759 { 1760 union semun arg; 1761 struct semid_ds dsarg; 1762 int cmd = third&0xff; 1763 abi_long ret = 0; 1764 1765 switch( cmd ) { 1766 case GETVAL: 1767 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1768 ret = get_errno(semctl(first, second, cmd, arg)); 1769 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1770 break; 1771 case SETVAL: 1772 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1773 ret = get_errno(semctl(first, second, cmd, arg)); 1774 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1775 break; 1776 case GETALL: 1777 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1778 ret = get_errno(semctl(first, second, cmd, arg)); 1779 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1780 break; 1781 case SETALL: 1782 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1783 ret = get_errno(semctl(first, second, cmd, arg)); 1784 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1785 break; 1786 case IPC_STAT: 1787 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1788 ret = get_errno(semctl(first, second, cmd, arg)); 1789 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1790 break; 1791 case IPC_SET: 1792 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1793 ret = get_errno(semctl(first, second, cmd, arg)); 1794 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1795 break; 1796 default: 1797 ret = get_errno(semctl(first, second, cmd, arg)); 1798 } 1799 1800 return ret; 1801 } 1802 1803 struct target_msqid_ds 1804 { 1805 struct target_ipc_perm msg_perm; 1806 abi_ulong msg_stime; 1807 abi_ulong __unused1; 1808 abi_ulong msg_rtime; 1809 abi_ulong __unused2; 1810 abi_ulong msg_ctime; 1811 abi_ulong __unused3; 1812 abi_ulong __msg_cbytes; 1813 abi_ulong msg_qnum; 1814 abi_ulong msg_qbytes; 1815 abi_ulong msg_lspid; 1816 abi_ulong msg_lrpid; 1817 abi_ulong __unused4; 1818 abi_ulong __unused5; 1819 }; 1820 1821 static inline abi_long target_to_host_msqid_ds(struct msqid_ds *host_md, 1822 abi_ulong target_addr) 1823 { 1824 struct target_msqid_ds *target_md; 1825 1826 if (!lock_user_struct(VERIFY_READ, target_md, target_addr, 1)) 1827 return -TARGET_EFAULT; 1828 target_to_host_ipc_perm(&(host_md->msg_perm),target_addr); 1829 host_md->msg_stime = tswapl(target_md->msg_stime); 1830 host_md->msg_rtime = tswapl(target_md->msg_rtime); 1831 host_md->msg_ctime = tswapl(target_md->msg_ctime); 1832 host_md->__msg_cbytes = tswapl(target_md->__msg_cbytes); 1833 host_md->msg_qnum = tswapl(target_md->msg_qnum); 1834 host_md->msg_qbytes = tswapl(target_md->msg_qbytes); 1835 host_md->msg_lspid = tswapl(target_md->msg_lspid); 1836 host_md->msg_lrpid = tswapl(target_md->msg_lrpid); 1837 unlock_user_struct(target_md, target_addr, 0); 1838 return 0; 1839 } 1840 1841 static inline abi_long host_to_target_msqid_ds(abi_ulong target_addr, 1842 struct msqid_ds *host_md) 1843 { 1844 struct target_msqid_ds *target_md; 1845 1846 if (!lock_user_struct(VERIFY_WRITE, target_md, target_addr, 0)) 1847 return -TARGET_EFAULT; 1848 host_to_target_ipc_perm(target_addr,&(host_md->msg_perm)); 1849 target_md->msg_stime = tswapl(host_md->msg_stime); 1850 target_md->msg_rtime = tswapl(host_md->msg_rtime); 1851 target_md->msg_ctime = tswapl(host_md->msg_ctime); 1852 target_md->__msg_cbytes = tswapl(host_md->__msg_cbytes); 1853 target_md->msg_qnum = tswapl(host_md->msg_qnum); 1854 target_md->msg_qbytes = tswapl(host_md->msg_qbytes); 1855 target_md->msg_lspid = tswapl(host_md->msg_lspid); 1856 target_md->msg_lrpid = tswapl(host_md->msg_lrpid); 1857 unlock_user_struct(target_md, target_addr, 1); 1858 return 0; 1859 } 1860 1861 static inline abi_long do_msgctl(int first, int second, abi_long ptr) 1862 { 1863 struct msqid_ds dsarg; 1864 int cmd = second&0xff; 1865 abi_long ret = 0; 1866 switch( cmd ) { 1867 case IPC_STAT: 1868 case IPC_SET: 1869 target_to_host_msqid_ds(&dsarg,ptr); 1870 ret = get_errno(msgctl(first, cmd, &dsarg)); 1871 host_to_target_msqid_ds(ptr,&dsarg); 1872 default: 1873 ret = get_errno(msgctl(first, cmd, &dsarg)); 1874 } 1875 return ret; 1876 } 1877 1878 struct target_msgbuf { 1879 abi_ulong mtype; 1880 char mtext[1]; 1881 }; 1882 1883 static inline abi_long do_msgsnd(int msqid, abi_long msgp, 1884 unsigned int msgsz, int msgflg) 1885 { 1886 struct target_msgbuf *target_mb; 1887 struct msgbuf *host_mb; 1888 abi_long ret = 0; 1889 1890 if (!lock_user_struct(VERIFY_READ, target_mb, msgp, 0)) 1891 return -TARGET_EFAULT; 1892 host_mb = malloc(msgsz+sizeof(long)); 1893 host_mb->mtype = tswapl(target_mb->mtype); 1894 memcpy(host_mb->mtext,target_mb->mtext,msgsz); 1895 ret = get_errno(msgsnd(msqid, host_mb, msgsz, msgflg)); 1896 free(host_mb); 1897 unlock_user_struct(target_mb, msgp, 0); 1898 1899 return ret; 1900 } 1901 1902 static inline abi_long do_msgrcv(int msqid, abi_long msgp, 1903 unsigned int msgsz, int msgtype, 1904 int msgflg) 1905 { 1906 struct target_msgbuf *target_mb; 1907 char *target_mtext; 1908 struct msgbuf *host_mb; 1909 abi_long ret = 0; 1910 1911 if (!lock_user_struct(VERIFY_WRITE, target_mb, msgp, 0)) 1912 return -TARGET_EFAULT; 1913 host_mb = malloc(msgsz+sizeof(long)); 1914 ret = get_errno(msgrcv(msqid, host_mb, msgsz, 1, msgflg)); 1915 if (ret > 0) { 1916 abi_ulong target_mtext_addr = msgp + sizeof(abi_ulong); 1917 target_mtext = lock_user(VERIFY_WRITE, target_mtext_addr, ret, 0); 1918 if (!target_mtext) { 1919 ret = -TARGET_EFAULT; 1920 goto end; 1921 } 1922 memcpy(target_mb->mtext, host_mb->mtext, ret); 1923 unlock_user(target_mtext, target_mtext_addr, ret); 1924 } 1925 target_mb->mtype = tswapl(host_mb->mtype); 1926 free(host_mb); 1927 1928 end: 1929 if (target_mb) 1930 unlock_user_struct(target_mb, msgp, 1); 1931 return ret; 1932 } 1933 1934 /* ??? This only works with linear mappings. */ 1935 /* do_ipc() must return target values and target errnos. */ 1936 static abi_long do_ipc(unsigned int call, int first, 1937 int second, int third, 1938 abi_long ptr, abi_long fifth) 1939 { 1940 int version; 1941 abi_long ret = 0; 1942 struct shmid_ds shm_info; 1943 int i; 1944 1945 version = call >> 16; 1946 call &= 0xffff; 1947 1948 switch (call) { 1949 case IPCOP_semop: 1950 ret = get_errno(semop(first,(struct sembuf *)g2h(ptr), second)); 1951 break; 1952 1953 case IPCOP_semget: 1954 ret = get_errno(semget(first, second, third)); 1955 break; 1956 1957 case IPCOP_semctl: 1958 ret = do_semctl(first, second, third, ptr); 1959 break; 1960 1961 case IPCOP_semtimedop: 1962 gemu_log("Unsupported ipc call: %d (version %d)\n", call, version); 1963 ret = -TARGET_ENOSYS; 1964 break; 1965 1966 case IPCOP_msgget: 1967 ret = get_errno(msgget(first, second)); 1968 break; 1969 1970 case IPCOP_msgsnd: 1971 ret = do_msgsnd(first, ptr, second, third); 1972 break; 1973 1974 case IPCOP_msgctl: 1975 ret = do_msgctl(first, second, ptr); 1976 break; 1977 1978 case IPCOP_msgrcv: 1979 { 1980 /* XXX: this code is not correct */ 1981 struct ipc_kludge 1982 { 1983 void *__unbounded msgp; 1984 long int msgtyp; 1985 }; 1986 1987 struct ipc_kludge *foo = (struct ipc_kludge *)g2h(ptr); 1988 struct msgbuf *msgp = (struct msgbuf *) foo->msgp; 1989 1990 ret = do_msgrcv(first, (long)msgp, second, 0, third); 1991 1992 } 1993 break; 1994 1995 case IPCOP_shmat: 1996 { 1997 abi_ulong raddr; 1998 void *host_addr; 1999 /* SHM_* flags are the same on all linux platforms */ 2000 host_addr = shmat(first, (void *)g2h(ptr), second); 2001 if (host_addr == (void *)-1) { 2002 ret = get_errno((long)host_addr); 2003 break; 2004 } 2005 raddr = h2g((unsigned long)host_addr); 2006 /* find out the length of the shared memory segment */ 2007 2008 ret = get_errno(shmctl(first, IPC_STAT, &shm_info)); 2009 if (is_error(ret)) { 2010 /* can't get length, bail out */ 2011 shmdt(host_addr); 2012 break; 2013 } 2014 page_set_flags(raddr, raddr + shm_info.shm_segsz, 2015 PAGE_VALID | PAGE_READ | 2016 ((second & SHM_RDONLY)? 0: PAGE_WRITE)); 2017 for (i = 0; i < N_SHM_REGIONS; ++i) { 2018 if (shm_regions[i].start == 0) { 2019 shm_regions[i].start = raddr; 2020 shm_regions[i].size = shm_info.shm_segsz; 2021 break; 2022 } 2023 } 2024 if (put_user_ual(raddr, third)) 2025 return -TARGET_EFAULT; 2026 ret = 0; 2027 } 2028 break; 2029 case IPCOP_shmdt: 2030 for (i = 0; i < N_SHM_REGIONS; ++i) { 2031 if (shm_regions[i].start == ptr) { 2032 shm_regions[i].start = 0; 2033 page_set_flags(ptr, shm_regions[i].size, 0); 2034 break; 2035 } 2036 } 2037 ret = get_errno(shmdt((void *)g2h(ptr))); 2038 break; 2039 2040 case IPCOP_shmget: 2041 /* IPC_* flag values are the same on all linux platforms */ 2042 ret = get_errno(shmget(first, second, third)); 2043 break; 2044 2045 /* IPC_* and SHM_* command values are the same on all linux platforms */ 2046 case IPCOP_shmctl: 2047 switch(second) { 2048 case IPC_RMID: 2049 case SHM_LOCK: 2050 case SHM_UNLOCK: 2051 ret = get_errno(shmctl(first, second, NULL)); 2052 break; 2053 default: 2054 goto unimplemented; 2055 } 2056 break; 2057 default: 2058 unimplemented: 2059 gemu_log("Unsupported ipc call: %d (version %d)\n", call, version); 2060 ret = -TARGET_ENOSYS; 2061 break; 2062 } 2063 return ret; 2064 } 2065 #endif 2066 2067 /* kernel structure types definitions */ 2068 #define IFNAMSIZ 16 2069 2070 #define STRUCT(name, list...) STRUCT_ ## name, 2071 #define STRUCT_SPECIAL(name) STRUCT_ ## name, 2072 enum { 2073 #include "syscall_types.h" 2074 }; 2075 #undef STRUCT 2076 #undef STRUCT_SPECIAL 2077 2078 #define STRUCT(name, list...) const argtype struct_ ## name ## _def[] = { list, TYPE_NULL }; 2079 #define STRUCT_SPECIAL(name) 2080 #include "syscall_types.h" 2081 #undef STRUCT 2082 #undef STRUCT_SPECIAL 2083 2084 typedef struct IOCTLEntry { 2085 unsigned int target_cmd; 2086 unsigned int host_cmd; 2087 const char *name; 2088 int access; 2089 const argtype arg_type[5]; 2090 } IOCTLEntry; 2091 2092 #define IOC_R 0x0001 2093 #define IOC_W 0x0002 2094 #define IOC_RW (IOC_R | IOC_W) 2095 2096 #define MAX_STRUCT_SIZE 4096 2097 2098 IOCTLEntry ioctl_entries[] = { 2099 #define IOCTL(cmd, access, types...) \ 2100 { TARGET_ ## cmd, cmd, #cmd, access, { types } }, 2101 #include "ioctls.h" 2102 { 0, 0, }, 2103 }; 2104 2105 /* ??? Implement proper locking for ioctls. */ 2106 /* do_ioctl() Must return target values and target errnos. */ 2107 static abi_long do_ioctl(int fd, abi_long cmd, abi_long arg) 2108 { 2109 const IOCTLEntry *ie; 2110 const argtype *arg_type; 2111 abi_long ret; 2112 uint8_t buf_temp[MAX_STRUCT_SIZE]; 2113 int target_size; 2114 void *argptr; 2115 2116 ie = ioctl_entries; 2117 for(;;) { 2118 if (ie->target_cmd == 0) { 2119 gemu_log("Unsupported ioctl: cmd=0x%04lx\n", (long)cmd); 2120 return -TARGET_ENOSYS; 2121 } 2122 if (ie->target_cmd == cmd) 2123 break; 2124 ie++; 2125 } 2126 arg_type = ie->arg_type; 2127 #if defined(DEBUG) 2128 gemu_log("ioctl: cmd=0x%04lx (%s)\n", (long)cmd, ie->name); 2129 #endif 2130 switch(arg_type[0]) { 2131 case TYPE_NULL: 2132 /* no argument */ 2133 ret = get_errno(ioctl(fd, ie->host_cmd)); 2134 break; 2135 case TYPE_PTRVOID: 2136 case TYPE_INT: 2137 /* int argment */ 2138 ret = get_errno(ioctl(fd, ie->host_cmd, arg)); 2139 break; 2140 case TYPE_PTR: 2141 arg_type++; 2142 target_size = thunk_type_size(arg_type, 0); 2143 switch(ie->access) { 2144 case IOC_R: 2145 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 2146 if (!is_error(ret)) { 2147 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0); 2148 if (!argptr) 2149 return -TARGET_EFAULT; 2150 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET); 2151 unlock_user(argptr, arg, target_size); 2152 } 2153 break; 2154 case IOC_W: 2155 argptr = lock_user(VERIFY_READ, arg, target_size, 1); 2156 if (!argptr) 2157 return -TARGET_EFAULT; 2158 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST); 2159 unlock_user(argptr, arg, 0); 2160 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 2161 break; 2162 default: 2163 case IOC_RW: 2164 argptr = lock_user(VERIFY_READ, arg, target_size, 1); 2165 if (!argptr) 2166 return -TARGET_EFAULT; 2167 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST); 2168 unlock_user(argptr, arg, 0); 2169 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 2170 if (!is_error(ret)) { 2171 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0); 2172 if (!argptr) 2173 return -TARGET_EFAULT; 2174 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET); 2175 unlock_user(argptr, arg, target_size); 2176 } 2177 break; 2178 } 2179 break; 2180 default: 2181 gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n", 2182 (long)cmd, arg_type[0]); 2183 ret = -TARGET_ENOSYS; 2184 break; 2185 } 2186 return ret; 2187 } 2188 2189 bitmask_transtbl iflag_tbl[] = { 2190 { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK }, 2191 { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT }, 2192 { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR }, 2193 { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK }, 2194 { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK }, 2195 { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP }, 2196 { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR }, 2197 { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR }, 2198 { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL }, 2199 { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC }, 2200 { TARGET_IXON, TARGET_IXON, IXON, IXON }, 2201 { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY }, 2202 { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF }, 2203 { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL }, 2204 { 0, 0, 0, 0 } 2205 }; 2206 2207 bitmask_transtbl oflag_tbl[] = { 2208 { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST }, 2209 { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC }, 2210 { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR }, 2211 { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL }, 2212 { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR }, 2213 { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET }, 2214 { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL }, 2215 { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL }, 2216 { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 }, 2217 { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 }, 2218 { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 }, 2219 { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 }, 2220 { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 }, 2221 { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 }, 2222 { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 }, 2223 { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 }, 2224 { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 }, 2225 { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 }, 2226 { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 }, 2227 { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 }, 2228 { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 }, 2229 { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 }, 2230 { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 }, 2231 { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 }, 2232 { 0, 0, 0, 0 } 2233 }; 2234 2235 bitmask_transtbl cflag_tbl[] = { 2236 { TARGET_CBAUD, TARGET_B0, CBAUD, B0 }, 2237 { TARGET_CBAUD, TARGET_B50, CBAUD, B50 }, 2238 { TARGET_CBAUD, TARGET_B75, CBAUD, B75 }, 2239 { TARGET_CBAUD, TARGET_B110, CBAUD, B110 }, 2240 { TARGET_CBAUD, TARGET_B134, CBAUD, B134 }, 2241 { TARGET_CBAUD, TARGET_B150, CBAUD, B150 }, 2242 { TARGET_CBAUD, TARGET_B200, CBAUD, B200 }, 2243 { TARGET_CBAUD, TARGET_B300, CBAUD, B300 }, 2244 { TARGET_CBAUD, TARGET_B600, CBAUD, B600 }, 2245 { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 }, 2246 { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 }, 2247 { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 }, 2248 { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 }, 2249 { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 }, 2250 { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 }, 2251 { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 }, 2252 { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 }, 2253 { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 }, 2254 { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 }, 2255 { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 }, 2256 { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 }, 2257 { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 }, 2258 { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 }, 2259 { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 }, 2260 { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB }, 2261 { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD }, 2262 { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB }, 2263 { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD }, 2264 { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL }, 2265 { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL }, 2266 { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS }, 2267 { 0, 0, 0, 0 } 2268 }; 2269 2270 bitmask_transtbl lflag_tbl[] = { 2271 { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG }, 2272 { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON }, 2273 { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE }, 2274 { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO }, 2275 { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE }, 2276 { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK }, 2277 { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL }, 2278 { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH }, 2279 { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP }, 2280 { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL }, 2281 { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT }, 2282 { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE }, 2283 { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO }, 2284 { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN }, 2285 { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN }, 2286 { 0, 0, 0, 0 } 2287 }; 2288 2289 static void target_to_host_termios (void *dst, const void *src) 2290 { 2291 struct host_termios *host = dst; 2292 const struct target_termios *target = src; 2293 2294 host->c_iflag = 2295 target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl); 2296 host->c_oflag = 2297 target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl); 2298 host->c_cflag = 2299 target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl); 2300 host->c_lflag = 2301 target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl); 2302 host->c_line = target->c_line; 2303 2304 host->c_cc[VINTR] = target->c_cc[TARGET_VINTR]; 2305 host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT]; 2306 host->c_cc[VERASE] = target->c_cc[TARGET_VERASE]; 2307 host->c_cc[VKILL] = target->c_cc[TARGET_VKILL]; 2308 host->c_cc[VEOF] = target->c_cc[TARGET_VEOF]; 2309 host->c_cc[VTIME] = target->c_cc[TARGET_VTIME]; 2310 host->c_cc[VMIN] = target->c_cc[TARGET_VMIN]; 2311 host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC]; 2312 host->c_cc[VSTART] = target->c_cc[TARGET_VSTART]; 2313 host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP]; 2314 host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP]; 2315 host->c_cc[VEOL] = target->c_cc[TARGET_VEOL]; 2316 host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT]; 2317 host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD]; 2318 host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE]; 2319 host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT]; 2320 host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2]; 2321 } 2322 2323 static void host_to_target_termios (void *dst, const void *src) 2324 { 2325 struct target_termios *target = dst; 2326 const struct host_termios *host = src; 2327 2328 target->c_iflag = 2329 tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl)); 2330 target->c_oflag = 2331 tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl)); 2332 target->c_cflag = 2333 tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl)); 2334 target->c_lflag = 2335 tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl)); 2336 target->c_line = host->c_line; 2337 2338 target->c_cc[TARGET_VINTR] = host->c_cc[VINTR]; 2339 target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT]; 2340 target->c_cc[TARGET_VERASE] = host->c_cc[VERASE]; 2341 target->c_cc[TARGET_VKILL] = host->c_cc[VKILL]; 2342 target->c_cc[TARGET_VEOF] = host->c_cc[VEOF]; 2343 target->c_cc[TARGET_VTIME] = host->c_cc[VTIME]; 2344 target->c_cc[TARGET_VMIN] = host->c_cc[VMIN]; 2345 target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC]; 2346 target->c_cc[TARGET_VSTART] = host->c_cc[VSTART]; 2347 target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP]; 2348 target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP]; 2349 target->c_cc[TARGET_VEOL] = host->c_cc[VEOL]; 2350 target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT]; 2351 target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD]; 2352 target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE]; 2353 target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT]; 2354 target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2]; 2355 } 2356 2357 StructEntry struct_termios_def = { 2358 .convert = { host_to_target_termios, target_to_host_termios }, 2359 .size = { sizeof(struct target_termios), sizeof(struct host_termios) }, 2360 .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) }, 2361 }; 2362 2363 static bitmask_transtbl mmap_flags_tbl[] = { 2364 { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED }, 2365 { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE }, 2366 { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED }, 2367 { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS }, 2368 { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN }, 2369 { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE }, 2370 { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE }, 2371 { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED }, 2372 { 0, 0, 0, 0 } 2373 }; 2374 2375 static bitmask_transtbl fcntl_flags_tbl[] = { 2376 { TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, }, 2377 { TARGET_O_ACCMODE, TARGET_O_RDWR, O_ACCMODE, O_RDWR, }, 2378 { TARGET_O_CREAT, TARGET_O_CREAT, O_CREAT, O_CREAT, }, 2379 { TARGET_O_EXCL, TARGET_O_EXCL, O_EXCL, O_EXCL, }, 2380 { TARGET_O_NOCTTY, TARGET_O_NOCTTY, O_NOCTTY, O_NOCTTY, }, 2381 { TARGET_O_TRUNC, TARGET_O_TRUNC, O_TRUNC, O_TRUNC, }, 2382 { TARGET_O_APPEND, TARGET_O_APPEND, O_APPEND, O_APPEND, }, 2383 { TARGET_O_NONBLOCK, TARGET_O_NONBLOCK, O_NONBLOCK, O_NONBLOCK, }, 2384 { TARGET_O_SYNC, TARGET_O_SYNC, O_SYNC, O_SYNC, }, 2385 { TARGET_FASYNC, TARGET_FASYNC, FASYNC, FASYNC, }, 2386 { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, }, 2387 { TARGET_O_NOFOLLOW, TARGET_O_NOFOLLOW, O_NOFOLLOW, O_NOFOLLOW, }, 2388 { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, }, 2389 #if defined(O_DIRECT) 2390 { TARGET_O_DIRECT, TARGET_O_DIRECT, O_DIRECT, O_DIRECT, }, 2391 #endif 2392 { 0, 0, 0, 0 } 2393 }; 2394 2395 #if defined(TARGET_I386) 2396 2397 /* NOTE: there is really one LDT for all the threads */ 2398 uint8_t *ldt_table; 2399 2400 static abi_long read_ldt(abi_ulong ptr, unsigned long bytecount) 2401 { 2402 int size; 2403 void *p; 2404 2405 if (!ldt_table) 2406 return 0; 2407 size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE; 2408 if (size > bytecount) 2409 size = bytecount; 2410 p = lock_user(VERIFY_WRITE, ptr, size, 0); 2411 if (!p) 2412 return -TARGET_EFAULT; 2413 /* ??? Should this by byteswapped? */ 2414 memcpy(p, ldt_table, size); 2415 unlock_user(p, ptr, size); 2416 return size; 2417 } 2418 2419 /* XXX: add locking support */ 2420 static abi_long write_ldt(CPUX86State *env, 2421 abi_ulong ptr, unsigned long bytecount, int oldmode) 2422 { 2423 struct target_modify_ldt_ldt_s ldt_info; 2424 struct target_modify_ldt_ldt_s *target_ldt_info; 2425 int seg_32bit, contents, read_exec_only, limit_in_pages; 2426 int seg_not_present, useable, lm; 2427 uint32_t *lp, entry_1, entry_2; 2428 2429 if (bytecount != sizeof(ldt_info)) 2430 return -TARGET_EINVAL; 2431 if (!lock_user_struct(VERIFY_READ, target_ldt_info, ptr, 1)) 2432 return -TARGET_EFAULT; 2433 ldt_info.entry_number = tswap32(target_ldt_info->entry_number); 2434 ldt_info.base_addr = tswapl(target_ldt_info->base_addr); 2435 ldt_info.limit = tswap32(target_ldt_info->limit); 2436 ldt_info.flags = tswap32(target_ldt_info->flags); 2437 unlock_user_struct(target_ldt_info, ptr, 0); 2438 2439 if (ldt_info.entry_number >= TARGET_LDT_ENTRIES) 2440 return -TARGET_EINVAL; 2441 seg_32bit = ldt_info.flags & 1; 2442 contents = (ldt_info.flags >> 1) & 3; 2443 read_exec_only = (ldt_info.flags >> 3) & 1; 2444 limit_in_pages = (ldt_info.flags >> 4) & 1; 2445 seg_not_present = (ldt_info.flags >> 5) & 1; 2446 useable = (ldt_info.flags >> 6) & 1; 2447 #ifdef TARGET_ABI32 2448 lm = 0; 2449 #else 2450 lm = (ldt_info.flags >> 7) & 1; 2451 #endif 2452 if (contents == 3) { 2453 if (oldmode) 2454 return -TARGET_EINVAL; 2455 if (seg_not_present == 0) 2456 return -TARGET_EINVAL; 2457 } 2458 /* allocate the LDT */ 2459 if (!ldt_table) { 2460 ldt_table = malloc(TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE); 2461 if (!ldt_table) 2462 return -TARGET_ENOMEM; 2463 memset(ldt_table, 0, TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE); 2464 env->ldt.base = h2g((unsigned long)ldt_table); 2465 env->ldt.limit = 0xffff; 2466 } 2467 2468 /* NOTE: same code as Linux kernel */ 2469 /* Allow LDTs to be cleared by the user. */ 2470 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) { 2471 if (oldmode || 2472 (contents == 0 && 2473 read_exec_only == 1 && 2474 seg_32bit == 0 && 2475 limit_in_pages == 0 && 2476 seg_not_present == 1 && 2477 useable == 0 )) { 2478 entry_1 = 0; 2479 entry_2 = 0; 2480 goto install; 2481 } 2482 } 2483 2484 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) | 2485 (ldt_info.limit & 0x0ffff); 2486 entry_2 = (ldt_info.base_addr & 0xff000000) | 2487 ((ldt_info.base_addr & 0x00ff0000) >> 16) | 2488 (ldt_info.limit & 0xf0000) | 2489 ((read_exec_only ^ 1) << 9) | 2490 (contents << 10) | 2491 ((seg_not_present ^ 1) << 15) | 2492 (seg_32bit << 22) | 2493 (limit_in_pages << 23) | 2494 (lm << 21) | 2495 0x7000; 2496 if (!oldmode) 2497 entry_2 |= (useable << 20); 2498 2499 /* Install the new entry ... */ 2500 install: 2501 lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3)); 2502 lp[0] = tswap32(entry_1); 2503 lp[1] = tswap32(entry_2); 2504 return 0; 2505 } 2506 2507 /* specific and weird i386 syscalls */ 2508 abi_long do_modify_ldt(CPUX86State *env, int func, abi_ulong ptr, 2509 unsigned long bytecount) 2510 { 2511 abi_long ret; 2512 2513 switch (func) { 2514 case 0: 2515 ret = read_ldt(ptr, bytecount); 2516 break; 2517 case 1: 2518 ret = write_ldt(env, ptr, bytecount, 1); 2519 break; 2520 case 0x11: 2521 ret = write_ldt(env, ptr, bytecount, 0); 2522 break; 2523 default: 2524 ret = -TARGET_ENOSYS; 2525 break; 2526 } 2527 return ret; 2528 } 2529 2530 abi_long do_set_thread_area(CPUX86State *env, abi_ulong ptr) 2531 { 2532 uint64_t *gdt_table = g2h(env->gdt.base); 2533 struct target_modify_ldt_ldt_s ldt_info; 2534 struct target_modify_ldt_ldt_s *target_ldt_info; 2535 int seg_32bit, contents, read_exec_only, limit_in_pages; 2536 int seg_not_present, useable, lm; 2537 uint32_t *lp, entry_1, entry_2; 2538 int i; 2539 2540 lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1); 2541 if (!target_ldt_info) 2542 return -TARGET_EFAULT; 2543 ldt_info.entry_number = tswap32(target_ldt_info->entry_number); 2544 ldt_info.base_addr = tswapl(target_ldt_info->base_addr); 2545 ldt_info.limit = tswap32(target_ldt_info->limit); 2546 ldt_info.flags = tswap32(target_ldt_info->flags); 2547 if (ldt_info.entry_number == -1) { 2548 for (i=TARGET_GDT_ENTRY_TLS_MIN; i<=TARGET_GDT_ENTRY_TLS_MAX; i++) { 2549 if (gdt_table[i] == 0) { 2550 ldt_info.entry_number = i; 2551 target_ldt_info->entry_number = tswap32(i); 2552 break; 2553 } 2554 } 2555 } 2556 unlock_user_struct(target_ldt_info, ptr, 1); 2557 2558 if (ldt_info.entry_number < TARGET_GDT_ENTRY_TLS_MIN || 2559 ldt_info.entry_number > TARGET_GDT_ENTRY_TLS_MAX) 2560 return -TARGET_EINVAL; 2561 seg_32bit = ldt_info.flags & 1; 2562 contents = (ldt_info.flags >> 1) & 3; 2563 read_exec_only = (ldt_info.flags >> 3) & 1; 2564 limit_in_pages = (ldt_info.flags >> 4) & 1; 2565 seg_not_present = (ldt_info.flags >> 5) & 1; 2566 useable = (ldt_info.flags >> 6) & 1; 2567 #ifdef TARGET_ABI32 2568 lm = 0; 2569 #else 2570 lm = (ldt_info.flags >> 7) & 1; 2571 #endif 2572 2573 if (contents == 3) { 2574 if (seg_not_present == 0) 2575 return -TARGET_EINVAL; 2576 } 2577 2578 /* NOTE: same code as Linux kernel */ 2579 /* Allow LDTs to be cleared by the user. */ 2580 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) { 2581 if ((contents == 0 && 2582 read_exec_only == 1 && 2583 seg_32bit == 0 && 2584 limit_in_pages == 0 && 2585 seg_not_present == 1 && 2586 useable == 0 )) { 2587 entry_1 = 0; 2588 entry_2 = 0; 2589 goto install; 2590 } 2591 } 2592 2593 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) | 2594 (ldt_info.limit & 0x0ffff); 2595 entry_2 = (ldt_info.base_addr & 0xff000000) | 2596 ((ldt_info.base_addr & 0x00ff0000) >> 16) | 2597 (ldt_info.limit & 0xf0000) | 2598 ((read_exec_only ^ 1) << 9) | 2599 (contents << 10) | 2600 ((seg_not_present ^ 1) << 15) | 2601 (seg_32bit << 22) | 2602 (limit_in_pages << 23) | 2603 (useable << 20) | 2604 (lm << 21) | 2605 0x7000; 2606 2607 /* Install the new entry ... */ 2608 install: 2609 lp = (uint32_t *)(gdt_table + ldt_info.entry_number); 2610 lp[0] = tswap32(entry_1); 2611 lp[1] = tswap32(entry_2); 2612 return 0; 2613 } 2614 2615 abi_long do_get_thread_area(CPUX86State *env, abi_ulong ptr) 2616 { 2617 struct target_modify_ldt_ldt_s *target_ldt_info; 2618 uint64_t *gdt_table = g2h(env->gdt.base); 2619 uint32_t base_addr, limit, flags; 2620 int seg_32bit, contents, read_exec_only, limit_in_pages, idx; 2621 int seg_not_present, useable, lm; 2622 uint32_t *lp, entry_1, entry_2; 2623 2624 lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1); 2625 if (!target_ldt_info) 2626 return -TARGET_EFAULT; 2627 idx = tswap32(target_ldt_info->entry_number); 2628 if (idx < TARGET_GDT_ENTRY_TLS_MIN || 2629 idx > TARGET_GDT_ENTRY_TLS_MAX) { 2630 unlock_user_struct(target_ldt_info, ptr, 1); 2631 return -TARGET_EINVAL; 2632 } 2633 lp = (uint32_t *)(gdt_table + idx); 2634 entry_1 = tswap32(lp[0]); 2635 entry_2 = tswap32(lp[1]); 2636 2637 read_exec_only = ((entry_2 >> 9) & 1) ^ 1; 2638 contents = (entry_2 >> 10) & 3; 2639 seg_not_present = ((entry_2 >> 15) & 1) ^ 1; 2640 seg_32bit = (entry_2 >> 22) & 1; 2641 limit_in_pages = (entry_2 >> 23) & 1; 2642 useable = (entry_2 >> 20) & 1; 2643 #ifdef TARGET_ABI32 2644 lm = 0; 2645 #else 2646 lm = (entry_2 >> 21) & 1; 2647 #endif 2648 flags = (seg_32bit << 0) | (contents << 1) | 2649 (read_exec_only << 3) | (limit_in_pages << 4) | 2650 (seg_not_present << 5) | (useable << 6) | (lm << 7); 2651 limit = (entry_1 & 0xffff) | (entry_2 & 0xf0000); 2652 base_addr = (entry_1 >> 16) | 2653 (entry_2 & 0xff000000) | 2654 ((entry_2 & 0xff) << 16); 2655 target_ldt_info->base_addr = tswapl(base_addr); 2656 target_ldt_info->limit = tswap32(limit); 2657 target_ldt_info->flags = tswap32(flags); 2658 unlock_user_struct(target_ldt_info, ptr, 1); 2659 return 0; 2660 } 2661 2662 #ifndef TARGET_ABI32 2663 abi_long do_arch_prctl(CPUX86State *env, int code, abi_ulong addr) 2664 { 2665 abi_long ret; 2666 abi_ulong val; 2667 int idx; 2668 2669 switch(code) { 2670 case TARGET_ARCH_SET_GS: 2671 case TARGET_ARCH_SET_FS: 2672 if (code == TARGET_ARCH_SET_GS) 2673 idx = R_GS; 2674 else 2675 idx = R_FS; 2676 cpu_x86_load_seg(env, idx, 0); 2677 env->segs[idx].base = addr; 2678 break; 2679 case TARGET_ARCH_GET_GS: 2680 case TARGET_ARCH_GET_FS: 2681 if (code == TARGET_ARCH_GET_GS) 2682 idx = R_GS; 2683 else 2684 idx = R_FS; 2685 val = env->segs[idx].base; 2686 if (put_user(val, addr, abi_ulong)) 2687 return -TARGET_EFAULT; 2688 break; 2689 default: 2690 ret = -TARGET_EINVAL; 2691 break; 2692 } 2693 return 0; 2694 } 2695 #endif 2696 2697 #endif /* defined(TARGET_I386) */ 2698 2699 /* this stack is the equivalent of the kernel stack associated with a 2700 thread/process */ 2701 #define NEW_STACK_SIZE 8192 2702 2703 static int clone_func(void *arg) 2704 { 2705 CPUState *env = arg; 2706 cpu_loop(env); 2707 /* never exits */ 2708 return 0; 2709 } 2710 2711 /* do_fork() Must return host values and target errnos (unlike most 2712 do_*() functions). */ 2713 int do_fork(CPUState *env, unsigned int flags, abi_ulong newsp) 2714 { 2715 int ret; 2716 TaskState *ts; 2717 uint8_t *new_stack; 2718 CPUState *new_env; 2719 2720 if (flags & CLONE_VM) { 2721 ts = malloc(sizeof(TaskState) + NEW_STACK_SIZE); 2722 memset(ts, 0, sizeof(TaskState)); 2723 new_stack = ts->stack; 2724 ts->used = 1; 2725 /* add in task state list */ 2726 ts->next = first_task_state; 2727 first_task_state = ts; 2728 /* we create a new CPU instance. */ 2729 new_env = cpu_copy(env); 2730 #if defined(TARGET_I386) 2731 if (!newsp) 2732 newsp = env->regs[R_ESP]; 2733 new_env->regs[R_ESP] = newsp; 2734 new_env->regs[R_EAX] = 0; 2735 #elif defined(TARGET_ARM) 2736 if (!newsp) 2737 newsp = env->regs[13]; 2738 new_env->regs[13] = newsp; 2739 new_env->regs[0] = 0; 2740 #elif defined(TARGET_SPARC) 2741 if (!newsp) 2742 newsp = env->regwptr[22]; 2743 new_env->regwptr[22] = newsp; 2744 new_env->regwptr[0] = 0; 2745 /* XXXXX */ 2746 printf ("HELPME: %s:%d\n", __FILE__, __LINE__); 2747 #elif defined(TARGET_M68K) 2748 if (!newsp) 2749 newsp = env->aregs[7]; 2750 new_env->aregs[7] = newsp; 2751 new_env->dregs[0] = 0; 2752 /* ??? is this sufficient? */ 2753 #elif defined(TARGET_MIPS) 2754 if (!newsp) 2755 newsp = env->gpr[env->current_tc][29]; 2756 new_env->gpr[env->current_tc][29] = newsp; 2757 #elif defined(TARGET_PPC) 2758 if (!newsp) 2759 newsp = env->gpr[1]; 2760 new_env->gpr[1] = newsp; 2761 { 2762 int i; 2763 for (i = 7; i < 32; i++) 2764 new_env->gpr[i] = 0; 2765 } 2766 #elif defined(TARGET_SH4) 2767 if (!newsp) 2768 newsp = env->gregs[15]; 2769 new_env->gregs[15] = newsp; 2770 /* XXXXX */ 2771 #elif defined(TARGET_ALPHA) 2772 if (!newsp) 2773 newsp = env->ir[30]; 2774 new_env->ir[30] = newsp; 2775 /* ? */ 2776 { 2777 int i; 2778 for (i = 7; i < 30; i++) 2779 new_env->ir[i] = 0; 2780 } 2781 #elif defined(TARGET_CRIS) 2782 if (!newsp) 2783 newsp = env->regs[14]; 2784 new_env->regs[14] = newsp; 2785 #else 2786 #error unsupported target CPU 2787 #endif 2788 new_env->opaque = ts; 2789 #ifdef __ia64__ 2790 ret = __clone2(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env); 2791 #else 2792 ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env); 2793 #endif 2794 } else { 2795 /* if no CLONE_VM, we consider it is a fork */ 2796 if ((flags & ~CSIGNAL) != 0) 2797 return -EINVAL; 2798 ret = fork(); 2799 } 2800 return ret; 2801 } 2802 2803 static abi_long do_fcntl(int fd, int cmd, abi_ulong arg) 2804 { 2805 struct flock fl; 2806 struct target_flock *target_fl; 2807 struct flock64 fl64; 2808 struct target_flock64 *target_fl64; 2809 abi_long ret; 2810 2811 switch(cmd) { 2812 case TARGET_F_GETLK: 2813 if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1)) 2814 return -TARGET_EFAULT; 2815 fl.l_type = tswap16(target_fl->l_type); 2816 fl.l_whence = tswap16(target_fl->l_whence); 2817 fl.l_start = tswapl(target_fl->l_start); 2818 fl.l_len = tswapl(target_fl->l_len); 2819 fl.l_pid = tswapl(target_fl->l_pid); 2820 unlock_user_struct(target_fl, arg, 0); 2821 ret = get_errno(fcntl(fd, cmd, &fl)); 2822 if (ret == 0) { 2823 if (!lock_user_struct(VERIFY_WRITE, target_fl, arg, 0)) 2824 return -TARGET_EFAULT; 2825 target_fl->l_type = tswap16(fl.l_type); 2826 target_fl->l_whence = tswap16(fl.l_whence); 2827 target_fl->l_start = tswapl(fl.l_start); 2828 target_fl->l_len = tswapl(fl.l_len); 2829 target_fl->l_pid = tswapl(fl.l_pid); 2830 unlock_user_struct(target_fl, arg, 1); 2831 } 2832 break; 2833 2834 case TARGET_F_SETLK: 2835 case TARGET_F_SETLKW: 2836 if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1)) 2837 return -TARGET_EFAULT; 2838 fl.l_type = tswap16(target_fl->l_type); 2839 fl.l_whence = tswap16(target_fl->l_whence); 2840 fl.l_start = tswapl(target_fl->l_start); 2841 fl.l_len = tswapl(target_fl->l_len); 2842 fl.l_pid = tswapl(target_fl->l_pid); 2843 unlock_user_struct(target_fl, arg, 0); 2844 ret = get_errno(fcntl(fd, cmd, &fl)); 2845 break; 2846 2847 case TARGET_F_GETLK64: 2848 if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1)) 2849 return -TARGET_EFAULT; 2850 fl64.l_type = tswap16(target_fl64->l_type) >> 1; 2851 fl64.l_whence = tswap16(target_fl64->l_whence); 2852 fl64.l_start = tswapl(target_fl64->l_start); 2853 fl64.l_len = tswapl(target_fl64->l_len); 2854 fl64.l_pid = tswap16(target_fl64->l_pid); 2855 unlock_user_struct(target_fl64, arg, 0); 2856 ret = get_errno(fcntl(fd, cmd >> 1, &fl64)); 2857 if (ret == 0) { 2858 if (!lock_user_struct(VERIFY_WRITE, target_fl64, arg, 0)) 2859 return -TARGET_EFAULT; 2860 target_fl64->l_type = tswap16(fl64.l_type) >> 1; 2861 target_fl64->l_whence = tswap16(fl64.l_whence); 2862 target_fl64->l_start = tswapl(fl64.l_start); 2863 target_fl64->l_len = tswapl(fl64.l_len); 2864 target_fl64->l_pid = tswapl(fl64.l_pid); 2865 unlock_user_struct(target_fl64, arg, 1); 2866 } 2867 break; 2868 case TARGET_F_SETLK64: 2869 case TARGET_F_SETLKW64: 2870 if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1)) 2871 return -TARGET_EFAULT; 2872 fl64.l_type = tswap16(target_fl64->l_type) >> 1; 2873 fl64.l_whence = tswap16(target_fl64->l_whence); 2874 fl64.l_start = tswapl(target_fl64->l_start); 2875 fl64.l_len = tswapl(target_fl64->l_len); 2876 fl64.l_pid = tswap16(target_fl64->l_pid); 2877 unlock_user_struct(target_fl64, arg, 0); 2878 ret = get_errno(fcntl(fd, cmd >> 1, &fl64)); 2879 break; 2880 2881 case F_GETFL: 2882 ret = get_errno(fcntl(fd, cmd, arg)); 2883 if (ret >= 0) { 2884 ret = host_to_target_bitmask(ret, fcntl_flags_tbl); 2885 } 2886 break; 2887 2888 case F_SETFL: 2889 ret = get_errno(fcntl(fd, cmd, target_to_host_bitmask(arg, fcntl_flags_tbl))); 2890 break; 2891 2892 default: 2893 ret = get_errno(fcntl(fd, cmd, arg)); 2894 break; 2895 } 2896 return ret; 2897 } 2898 2899 #ifdef USE_UID16 2900 2901 static inline int high2lowuid(int uid) 2902 { 2903 if (uid > 65535) 2904 return 65534; 2905 else 2906 return uid; 2907 } 2908 2909 static inline int high2lowgid(int gid) 2910 { 2911 if (gid > 65535) 2912 return 65534; 2913 else 2914 return gid; 2915 } 2916 2917 static inline int low2highuid(int uid) 2918 { 2919 if ((int16_t)uid == -1) 2920 return -1; 2921 else 2922 return uid; 2923 } 2924 2925 static inline int low2highgid(int gid) 2926 { 2927 if ((int16_t)gid == -1) 2928 return -1; 2929 else 2930 return gid; 2931 } 2932 2933 #endif /* USE_UID16 */ 2934 2935 void syscall_init(void) 2936 { 2937 IOCTLEntry *ie; 2938 const argtype *arg_type; 2939 int size; 2940 int i; 2941 2942 #define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def); 2943 #define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def); 2944 #include "syscall_types.h" 2945 #undef STRUCT 2946 #undef STRUCT_SPECIAL 2947 2948 /* we patch the ioctl size if necessary. We rely on the fact that 2949 no ioctl has all the bits at '1' in the size field */ 2950 ie = ioctl_entries; 2951 while (ie->target_cmd != 0) { 2952 if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) == 2953 TARGET_IOC_SIZEMASK) { 2954 arg_type = ie->arg_type; 2955 if (arg_type[0] != TYPE_PTR) { 2956 fprintf(stderr, "cannot patch size for ioctl 0x%x\n", 2957 ie->target_cmd); 2958 exit(1); 2959 } 2960 arg_type++; 2961 size = thunk_type_size(arg_type, 0); 2962 ie->target_cmd = (ie->target_cmd & 2963 ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) | 2964 (size << TARGET_IOC_SIZESHIFT); 2965 } 2966 2967 /* Build target_to_host_errno_table[] table from 2968 * host_to_target_errno_table[]. */ 2969 for (i=0; i < ERRNO_TABLE_SIZE; i++) 2970 target_to_host_errno_table[host_to_target_errno_table[i]] = i; 2971 2972 /* automatic consistency check if same arch */ 2973 #if defined(__i386__) && defined(TARGET_I386) && defined(TARGET_ABI32) 2974 if (ie->target_cmd != ie->host_cmd) { 2975 fprintf(stderr, "ERROR: ioctl: target=0x%x host=0x%x\n", 2976 ie->target_cmd, ie->host_cmd); 2977 } 2978 #endif 2979 ie++; 2980 } 2981 } 2982 2983 #if TARGET_ABI_BITS == 32 2984 static inline uint64_t target_offset64(uint32_t word0, uint32_t word1) 2985 { 2986 #ifdef TARGET_WORDS_BIG_ENDIAN 2987 return ((uint64_t)word0 << 32) | word1; 2988 #else 2989 return ((uint64_t)word1 << 32) | word0; 2990 #endif 2991 } 2992 #else /* TARGET_ABI_BITS == 32 */ 2993 static inline uint64_t target_offset64(uint64_t word0, uint64_t word1) 2994 { 2995 return word0; 2996 } 2997 #endif /* TARGET_ABI_BITS != 32 */ 2998 2999 #ifdef TARGET_NR_truncate64 3000 static inline abi_long target_truncate64(void *cpu_env, const char *arg1, 3001 abi_long arg2, 3002 abi_long arg3, 3003 abi_long arg4) 3004 { 3005 #ifdef TARGET_ARM 3006 if (((CPUARMState *)cpu_env)->eabi) 3007 { 3008 arg2 = arg3; 3009 arg3 = arg4; 3010 } 3011 #endif 3012 return get_errno(truncate64(arg1, target_offset64(arg2, arg3))); 3013 } 3014 #endif 3015 3016 #ifdef TARGET_NR_ftruncate64 3017 static inline abi_long target_ftruncate64(void *cpu_env, abi_long arg1, 3018 abi_long arg2, 3019 abi_long arg3, 3020 abi_long arg4) 3021 { 3022 #ifdef TARGET_ARM 3023 if (((CPUARMState *)cpu_env)->eabi) 3024 { 3025 arg2 = arg3; 3026 arg3 = arg4; 3027 } 3028 #endif 3029 return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3))); 3030 } 3031 #endif 3032 3033 static inline abi_long target_to_host_timespec(struct timespec *host_ts, 3034 abi_ulong target_addr) 3035 { 3036 struct target_timespec *target_ts; 3037 3038 if (!lock_user_struct(VERIFY_READ, target_ts, target_addr, 1)) 3039 return -TARGET_EFAULT; 3040 host_ts->tv_sec = tswapl(target_ts->tv_sec); 3041 host_ts->tv_nsec = tswapl(target_ts->tv_nsec); 3042 unlock_user_struct(target_ts, target_addr, 0); 3043 return 0; 3044 } 3045 3046 static inline abi_long host_to_target_timespec(abi_ulong target_addr, 3047 struct timespec *host_ts) 3048 { 3049 struct target_timespec *target_ts; 3050 3051 if (!lock_user_struct(VERIFY_WRITE, target_ts, target_addr, 0)) 3052 return -TARGET_EFAULT; 3053 target_ts->tv_sec = tswapl(host_ts->tv_sec); 3054 target_ts->tv_nsec = tswapl(host_ts->tv_nsec); 3055 unlock_user_struct(target_ts, target_addr, 1); 3056 return 0; 3057 } 3058 3059 int get_osversion(void) 3060 { 3061 static int osversion; 3062 struct new_utsname buf; 3063 const char *s; 3064 int i, n, tmp; 3065 if (osversion) 3066 return osversion; 3067 if (qemu_uname_release && *qemu_uname_release) { 3068 s = qemu_uname_release; 3069 } else { 3070 if (sys_uname(&buf)) 3071 return 0; 3072 s = buf.release; 3073 } 3074 tmp = 0; 3075 for (i = 0; i < 3; i++) { 3076 n = 0; 3077 while (*s >= '0' && *s <= '9') { 3078 n *= 10; 3079 n += *s - '0'; 3080 s++; 3081 } 3082 tmp = (tmp << 8) + n; 3083 if (*s == '.') 3084 s++; 3085 } 3086 osversion = tmp; 3087 return osversion; 3088 } 3089 3090 /* do_syscall() should always have a single exit point at the end so 3091 that actions, such as logging of syscall results, can be performed. 3092 All errnos that do_syscall() returns must be -TARGET_<errcode>. */ 3093 abi_long do_syscall(void *cpu_env, int num, abi_long arg1, 3094 abi_long arg2, abi_long arg3, abi_long arg4, 3095 abi_long arg5, abi_long arg6) 3096 { 3097 abi_long ret; 3098 struct stat st; 3099 struct statfs stfs; 3100 void *p; 3101 3102 #ifdef DEBUG 3103 gemu_log("syscall %d", num); 3104 #endif 3105 if(do_strace) 3106 print_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6); 3107 3108 switch(num) { 3109 case TARGET_NR_exit: 3110 #ifdef HAVE_GPROF 3111 _mcleanup(); 3112 #endif 3113 gdb_exit(cpu_env, arg1); 3114 /* XXX: should free thread stack and CPU env */ 3115 _exit(arg1); 3116 ret = 0; /* avoid warning */ 3117 break; 3118 case TARGET_NR_read: 3119 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0))) 3120 goto efault; 3121 ret = get_errno(read(arg1, p, arg3)); 3122 unlock_user(p, arg2, ret); 3123 break; 3124 case TARGET_NR_write: 3125 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1))) 3126 goto efault; 3127 ret = get_errno(write(arg1, p, arg3)); 3128 unlock_user(p, arg2, 0); 3129 break; 3130 case TARGET_NR_open: 3131 if (!(p = lock_user_string(arg1))) 3132 goto efault; 3133 ret = get_errno(open(path(p), 3134 target_to_host_bitmask(arg2, fcntl_flags_tbl), 3135 arg3)); 3136 unlock_user(p, arg1, 0); 3137 break; 3138 #if defined(TARGET_NR_openat) && defined(__NR_openat) 3139 case TARGET_NR_openat: 3140 if (!(p = lock_user_string(arg2))) 3141 goto efault; 3142 ret = get_errno(sys_openat(arg1, 3143 path(p), 3144 target_to_host_bitmask(arg3, fcntl_flags_tbl), 3145 arg4)); 3146 unlock_user(p, arg2, 0); 3147 break; 3148 #endif 3149 case TARGET_NR_close: 3150 ret = get_errno(close(arg1)); 3151 break; 3152 case TARGET_NR_brk: 3153 ret = do_brk(arg1); 3154 break; 3155 case TARGET_NR_fork: 3156 ret = get_errno(do_fork(cpu_env, SIGCHLD, 0)); 3157 break; 3158 #ifdef TARGET_NR_waitpid 3159 case TARGET_NR_waitpid: 3160 { 3161 int status; 3162 ret = get_errno(waitpid(arg1, &status, arg3)); 3163 if (!is_error(ret) && arg2 3164 && put_user_s32(status, arg2)) 3165 goto efault; 3166 } 3167 break; 3168 #endif 3169 #ifdef TARGET_NR_creat /* not on alpha */ 3170 case TARGET_NR_creat: 3171 if (!(p = lock_user_string(arg1))) 3172 goto efault; 3173 ret = get_errno(creat(p, arg2)); 3174 unlock_user(p, arg1, 0); 3175 break; 3176 #endif 3177 case TARGET_NR_link: 3178 { 3179 void * p2; 3180 p = lock_user_string(arg1); 3181 p2 = lock_user_string(arg2); 3182 if (!p || !p2) 3183 ret = -TARGET_EFAULT; 3184 else 3185 ret = get_errno(link(p, p2)); 3186 unlock_user(p2, arg2, 0); 3187 unlock_user(p, arg1, 0); 3188 } 3189 break; 3190 #if defined(TARGET_NR_linkat) && defined(__NR_linkat) 3191 case TARGET_NR_linkat: 3192 { 3193 void * p2 = NULL; 3194 if (!arg2 || !arg4) 3195 goto efault; 3196 p = lock_user_string(arg2); 3197 p2 = lock_user_string(arg4); 3198 if (!p || !p2) 3199 ret = -TARGET_EFAULT; 3200 else 3201 ret = get_errno(sys_linkat(arg1, p, arg3, p2, arg5)); 3202 unlock_user(p, arg2, 0); 3203 unlock_user(p2, arg4, 0); 3204 } 3205 break; 3206 #endif 3207 case TARGET_NR_unlink: 3208 if (!(p = lock_user_string(arg1))) 3209 goto efault; 3210 ret = get_errno(unlink(p)); 3211 unlock_user(p, arg1, 0); 3212 break; 3213 #if defined(TARGET_NR_unlinkat) && defined(__NR_unlinkat) 3214 case TARGET_NR_unlinkat: 3215 if (!(p = lock_user_string(arg2))) 3216 goto efault; 3217 ret = get_errno(sys_unlinkat(arg1, p, arg3)); 3218 unlock_user(p, arg2, 0); 3219 break; 3220 #endif 3221 case TARGET_NR_execve: 3222 { 3223 char **argp, **envp; 3224 int argc, envc; 3225 abi_ulong gp; 3226 abi_ulong guest_argp; 3227 abi_ulong guest_envp; 3228 abi_ulong addr; 3229 char **q; 3230 3231 argc = 0; 3232 guest_argp = arg2; 3233 for (gp = guest_argp; ; gp += sizeof(abi_ulong)) { 3234 if (get_user_ual(addr, gp)) 3235 goto efault; 3236 if (!addr) 3237 break; 3238 argc++; 3239 } 3240 envc = 0; 3241 guest_envp = arg3; 3242 for (gp = guest_envp; ; gp += sizeof(abi_ulong)) { 3243 if (get_user_ual(addr, gp)) 3244 goto efault; 3245 if (!addr) 3246 break; 3247 envc++; 3248 } 3249 3250 argp = alloca((argc + 1) * sizeof(void *)); 3251 envp = alloca((envc + 1) * sizeof(void *)); 3252 3253 for (gp = guest_argp, q = argp; ; 3254 gp += sizeof(abi_ulong), q++) { 3255 if (get_user_ual(addr, gp)) 3256 goto execve_efault; 3257 if (!addr) 3258 break; 3259 if (!(*q = lock_user_string(addr))) 3260 goto execve_efault; 3261 } 3262 *q = NULL; 3263 3264 for (gp = guest_envp, q = envp; ; 3265 gp += sizeof(abi_ulong), q++) { 3266 if (get_user_ual(addr, gp)) 3267 goto execve_efault; 3268 if (!addr) 3269 break; 3270 if (!(*q = lock_user_string(addr))) 3271 goto execve_efault; 3272 } 3273 *q = NULL; 3274 3275 if (!(p = lock_user_string(arg1))) 3276 goto execve_efault; 3277 ret = get_errno(execve(p, argp, envp)); 3278 unlock_user(p, arg1, 0); 3279 3280 goto execve_end; 3281 3282 execve_efault: 3283 ret = -TARGET_EFAULT; 3284 3285 execve_end: 3286 for (gp = guest_argp, q = argp; *q; 3287 gp += sizeof(abi_ulong), q++) { 3288 if (get_user_ual(addr, gp) 3289 || !addr) 3290 break; 3291 unlock_user(*q, addr, 0); 3292 } 3293 for (gp = guest_envp, q = envp; *q; 3294 gp += sizeof(abi_ulong), q++) { 3295 if (get_user_ual(addr, gp) 3296 || !addr) 3297 break; 3298 unlock_user(*q, addr, 0); 3299 } 3300 } 3301 break; 3302 case TARGET_NR_chdir: 3303 if (!(p = lock_user_string(arg1))) 3304 goto efault; 3305 ret = get_errno(chdir(p)); 3306 unlock_user(p, arg1, 0); 3307 break; 3308 #ifdef TARGET_NR_time 3309 case TARGET_NR_time: 3310 { 3311 time_t host_time; 3312 ret = get_errno(time(&host_time)); 3313 if (!is_error(ret) 3314 && arg1 3315 && put_user_sal(host_time, arg1)) 3316 goto efault; 3317 } 3318 break; 3319 #endif 3320 case TARGET_NR_mknod: 3321 if (!(p = lock_user_string(arg1))) 3322 goto efault; 3323 ret = get_errno(mknod(p, arg2, arg3)); 3324 unlock_user(p, arg1, 0); 3325 break; 3326 #if defined(TARGET_NR_mknodat) && defined(__NR_mknodat) 3327 case TARGET_NR_mknodat: 3328 if (!(p = lock_user_string(arg2))) 3329 goto efault; 3330 ret = get_errno(sys_mknodat(arg1, p, arg3, arg4)); 3331 unlock_user(p, arg2, 0); 3332 break; 3333 #endif 3334 case TARGET_NR_chmod: 3335 if (!(p = lock_user_string(arg1))) 3336 goto efault; 3337 ret = get_errno(chmod(p, arg2)); 3338 unlock_user(p, arg1, 0); 3339 break; 3340 #ifdef TARGET_NR_break 3341 case TARGET_NR_break: 3342 goto unimplemented; 3343 #endif 3344 #ifdef TARGET_NR_oldstat 3345 case TARGET_NR_oldstat: 3346 goto unimplemented; 3347 #endif 3348 case TARGET_NR_lseek: 3349 ret = get_errno(lseek(arg1, arg2, arg3)); 3350 break; 3351 #ifdef TARGET_NR_getxpid 3352 case TARGET_NR_getxpid: 3353 #else 3354 case TARGET_NR_getpid: 3355 #endif 3356 ret = get_errno(getpid()); 3357 break; 3358 case TARGET_NR_mount: 3359 { 3360 /* need to look at the data field */ 3361 void *p2, *p3; 3362 p = lock_user_string(arg1); 3363 p2 = lock_user_string(arg2); 3364 p3 = lock_user_string(arg3); 3365 if (!p || !p2 || !p3) 3366 ret = -TARGET_EFAULT; 3367 else 3368 /* FIXME - arg5 should be locked, but it isn't clear how to 3369 * do that since it's not guaranteed to be a NULL-terminated 3370 * string. 3371 */ 3372 ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, g2h(arg5))); 3373 unlock_user(p, arg1, 0); 3374 unlock_user(p2, arg2, 0); 3375 unlock_user(p3, arg3, 0); 3376 break; 3377 } 3378 #ifdef TARGET_NR_umount 3379 case TARGET_NR_umount: 3380 if (!(p = lock_user_string(arg1))) 3381 goto efault; 3382 ret = get_errno(umount(p)); 3383 unlock_user(p, arg1, 0); 3384 break; 3385 #endif 3386 #ifdef TARGET_NR_stime /* not on alpha */ 3387 case TARGET_NR_stime: 3388 { 3389 time_t host_time; 3390 if (get_user_sal(host_time, arg1)) 3391 goto efault; 3392 ret = get_errno(stime(&host_time)); 3393 } 3394 break; 3395 #endif 3396 case TARGET_NR_ptrace: 3397 goto unimplemented; 3398 #ifdef TARGET_NR_alarm /* not on alpha */ 3399 case TARGET_NR_alarm: 3400 ret = alarm(arg1); 3401 break; 3402 #endif 3403 #ifdef TARGET_NR_oldfstat 3404 case TARGET_NR_oldfstat: 3405 goto unimplemented; 3406 #endif 3407 #ifdef TARGET_NR_pause /* not on alpha */ 3408 case TARGET_NR_pause: 3409 ret = get_errno(pause()); 3410 break; 3411 #endif 3412 #ifdef TARGET_NR_utime 3413 case TARGET_NR_utime: 3414 { 3415 struct utimbuf tbuf, *host_tbuf; 3416 struct target_utimbuf *target_tbuf; 3417 if (arg2) { 3418 if (!lock_user_struct(VERIFY_READ, target_tbuf, arg2, 1)) 3419 goto efault; 3420 tbuf.actime = tswapl(target_tbuf->actime); 3421 tbuf.modtime = tswapl(target_tbuf->modtime); 3422 unlock_user_struct(target_tbuf, arg2, 0); 3423 host_tbuf = &tbuf; 3424 } else { 3425 host_tbuf = NULL; 3426 } 3427 if (!(p = lock_user_string(arg1))) 3428 goto efault; 3429 ret = get_errno(utime(p, host_tbuf)); 3430 unlock_user(p, arg1, 0); 3431 } 3432 break; 3433 #endif 3434 case TARGET_NR_utimes: 3435 { 3436 struct timeval *tvp, tv[2]; 3437 if (arg2) { 3438 if (copy_from_user_timeval(&tv[0], arg2) 3439 || copy_from_user_timeval(&tv[1], 3440 arg2 + sizeof(struct target_timeval))) 3441 goto efault; 3442 tvp = tv; 3443 } else { 3444 tvp = NULL; 3445 } 3446 if (!(p = lock_user_string(arg1))) 3447 goto efault; 3448 ret = get_errno(utimes(p, tvp)); 3449 unlock_user(p, arg1, 0); 3450 } 3451 break; 3452 #ifdef TARGET_NR_stty 3453 case TARGET_NR_stty: 3454 goto unimplemented; 3455 #endif 3456 #ifdef TARGET_NR_gtty 3457 case TARGET_NR_gtty: 3458 goto unimplemented; 3459 #endif 3460 case TARGET_NR_access: 3461 if (!(p = lock_user_string(arg1))) 3462 goto efault; 3463 ret = get_errno(access(p, arg2)); 3464 unlock_user(p, arg1, 0); 3465 break; 3466 #if defined(TARGET_NR_faccessat) && defined(__NR_faccessat) 3467 case TARGET_NR_faccessat: 3468 if (!(p = lock_user_string(arg2))) 3469 goto efault; 3470 ret = get_errno(sys_faccessat(arg1, p, arg3, arg4)); 3471 unlock_user(p, arg2, 0); 3472 break; 3473 #endif 3474 #ifdef TARGET_NR_nice /* not on alpha */ 3475 case TARGET_NR_nice: 3476 ret = get_errno(nice(arg1)); 3477 break; 3478 #endif 3479 #ifdef TARGET_NR_ftime 3480 case TARGET_NR_ftime: 3481 goto unimplemented; 3482 #endif 3483 case TARGET_NR_sync: 3484 sync(); 3485 ret = 0; 3486 break; 3487 case TARGET_NR_kill: 3488 ret = get_errno(kill(arg1, arg2)); 3489 break; 3490 case TARGET_NR_rename: 3491 { 3492 void *p2; 3493 p = lock_user_string(arg1); 3494 p2 = lock_user_string(arg2); 3495 if (!p || !p2) 3496 ret = -TARGET_EFAULT; 3497 else 3498 ret = get_errno(rename(p, p2)); 3499 unlock_user(p2, arg2, 0); 3500 unlock_user(p, arg1, 0); 3501 } 3502 break; 3503 #if defined(TARGET_NR_renameat) && defined(__NR_renameat) 3504 case TARGET_NR_renameat: 3505 { 3506 void *p2; 3507 p = lock_user_string(arg2); 3508 p2 = lock_user_string(arg4); 3509 if (!p || !p2) 3510 ret = -TARGET_EFAULT; 3511 else 3512 ret = get_errno(sys_renameat(arg1, p, arg3, p2)); 3513 unlock_user(p2, arg4, 0); 3514 unlock_user(p, arg2, 0); 3515 } 3516 break; 3517 #endif 3518 case TARGET_NR_mkdir: 3519 if (!(p = lock_user_string(arg1))) 3520 goto efault; 3521 ret = get_errno(mkdir(p, arg2)); 3522 unlock_user(p, arg1, 0); 3523 break; 3524 #if defined(TARGET_NR_mkdirat) && defined(__NR_mkdirat) 3525 case TARGET_NR_mkdirat: 3526 if (!(p = lock_user_string(arg2))) 3527 goto efault; 3528 ret = get_errno(sys_mkdirat(arg1, p, arg3)); 3529 unlock_user(p, arg2, 0); 3530 break; 3531 #endif 3532 case TARGET_NR_rmdir: 3533 if (!(p = lock_user_string(arg1))) 3534 goto efault; 3535 ret = get_errno(rmdir(p)); 3536 unlock_user(p, arg1, 0); 3537 break; 3538 case TARGET_NR_dup: 3539 ret = get_errno(dup(arg1)); 3540 break; 3541 case TARGET_NR_pipe: 3542 { 3543 int host_pipe[2]; 3544 ret = get_errno(pipe(host_pipe)); 3545 if (!is_error(ret)) { 3546 #if defined(TARGET_MIPS) 3547 CPUMIPSState *env = (CPUMIPSState*)cpu_env; 3548 env->gpr[env->current_tc][3] = host_pipe[1]; 3549 ret = host_pipe[0]; 3550 #elif defined(TARGET_SH4) 3551 ((CPUSH4State*)cpu_env)->gregs[1] = host_pipe[1]; 3552 ret = host_pipe[0]; 3553 #else 3554 if (put_user_s32(host_pipe[0], arg1) 3555 || put_user_s32(host_pipe[1], arg1 + sizeof(host_pipe[0]))) 3556 goto efault; 3557 #endif 3558 } 3559 } 3560 break; 3561 case TARGET_NR_times: 3562 { 3563 struct target_tms *tmsp; 3564 struct tms tms; 3565 ret = get_errno(times(&tms)); 3566 if (arg1) { 3567 tmsp = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_tms), 0); 3568 if (!tmsp) 3569 goto efault; 3570 tmsp->tms_utime = tswapl(host_to_target_clock_t(tms.tms_utime)); 3571 tmsp->tms_stime = tswapl(host_to_target_clock_t(tms.tms_stime)); 3572 tmsp->tms_cutime = tswapl(host_to_target_clock_t(tms.tms_cutime)); 3573 tmsp->tms_cstime = tswapl(host_to_target_clock_t(tms.tms_cstime)); 3574 } 3575 if (!is_error(ret)) 3576 ret = host_to_target_clock_t(ret); 3577 } 3578 break; 3579 #ifdef TARGET_NR_prof 3580 case TARGET_NR_prof: 3581 goto unimplemented; 3582 #endif 3583 #ifdef TARGET_NR_signal 3584 case TARGET_NR_signal: 3585 goto unimplemented; 3586 #endif 3587 case TARGET_NR_acct: 3588 if (!(p = lock_user_string(arg1))) 3589 goto efault; 3590 ret = get_errno(acct(path(p))); 3591 unlock_user(p, arg1, 0); 3592 break; 3593 #ifdef TARGET_NR_umount2 /* not on alpha */ 3594 case TARGET_NR_umount2: 3595 if (!(p = lock_user_string(arg1))) 3596 goto efault; 3597 ret = get_errno(umount2(p, arg2)); 3598 unlock_user(p, arg1, 0); 3599 break; 3600 #endif 3601 #ifdef TARGET_NR_lock 3602 case TARGET_NR_lock: 3603 goto unimplemented; 3604 #endif 3605 case TARGET_NR_ioctl: 3606 ret = do_ioctl(arg1, arg2, arg3); 3607 break; 3608 case TARGET_NR_fcntl: 3609 ret = do_fcntl(arg1, arg2, arg3); 3610 break; 3611 #ifdef TARGET_NR_mpx 3612 case TARGET_NR_mpx: 3613 goto unimplemented; 3614 #endif 3615 case TARGET_NR_setpgid: 3616 ret = get_errno(setpgid(arg1, arg2)); 3617 break; 3618 #ifdef TARGET_NR_ulimit 3619 case TARGET_NR_ulimit: 3620 goto unimplemented; 3621 #endif 3622 #ifdef TARGET_NR_oldolduname 3623 case TARGET_NR_oldolduname: 3624 goto unimplemented; 3625 #endif 3626 case TARGET_NR_umask: 3627 ret = get_errno(umask(arg1)); 3628 break; 3629 case TARGET_NR_chroot: 3630 if (!(p = lock_user_string(arg1))) 3631 goto efault; 3632 ret = get_errno(chroot(p)); 3633 unlock_user(p, arg1, 0); 3634 break; 3635 case TARGET_NR_ustat: 3636 goto unimplemented; 3637 case TARGET_NR_dup2: 3638 ret = get_errno(dup2(arg1, arg2)); 3639 break; 3640 #ifdef TARGET_NR_getppid /* not on alpha */ 3641 case TARGET_NR_getppid: 3642 ret = get_errno(getppid()); 3643 break; 3644 #endif 3645 case TARGET_NR_getpgrp: 3646 ret = get_errno(getpgrp()); 3647 break; 3648 case TARGET_NR_setsid: 3649 ret = get_errno(setsid()); 3650 break; 3651 #ifdef TARGET_NR_sigaction 3652 case TARGET_NR_sigaction: 3653 { 3654 #if !defined(TARGET_MIPS) 3655 struct target_old_sigaction *old_act; 3656 struct target_sigaction act, oact, *pact; 3657 if (arg2) { 3658 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1)) 3659 goto efault; 3660 act._sa_handler = old_act->_sa_handler; 3661 target_siginitset(&act.sa_mask, old_act->sa_mask); 3662 act.sa_flags = old_act->sa_flags; 3663 act.sa_restorer = old_act->sa_restorer; 3664 unlock_user_struct(old_act, arg2, 0); 3665 pact = &act; 3666 } else { 3667 pact = NULL; 3668 } 3669 ret = get_errno(do_sigaction(arg1, pact, &oact)); 3670 if (!is_error(ret) && arg3) { 3671 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0)) 3672 goto efault; 3673 old_act->_sa_handler = oact._sa_handler; 3674 old_act->sa_mask = oact.sa_mask.sig[0]; 3675 old_act->sa_flags = oact.sa_flags; 3676 old_act->sa_restorer = oact.sa_restorer; 3677 unlock_user_struct(old_act, arg3, 1); 3678 } 3679 #else 3680 struct target_sigaction act, oact, *pact, *old_act; 3681 3682 if (arg2) { 3683 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1)) 3684 goto efault; 3685 act._sa_handler = old_act->_sa_handler; 3686 target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]); 3687 act.sa_flags = old_act->sa_flags; 3688 unlock_user_struct(old_act, arg2, 0); 3689 pact = &act; 3690 } else { 3691 pact = NULL; 3692 } 3693 3694 ret = get_errno(do_sigaction(arg1, pact, &oact)); 3695 3696 if (!is_error(ret) && arg3) { 3697 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0)) 3698 goto efault; 3699 old_act->_sa_handler = oact._sa_handler; 3700 old_act->sa_flags = oact.sa_flags; 3701 old_act->sa_mask.sig[0] = oact.sa_mask.sig[0]; 3702 old_act->sa_mask.sig[1] = 0; 3703 old_act->sa_mask.sig[2] = 0; 3704 old_act->sa_mask.sig[3] = 0; 3705 unlock_user_struct(old_act, arg3, 1); 3706 } 3707 #endif 3708 } 3709 break; 3710 #endif 3711 case TARGET_NR_rt_sigaction: 3712 { 3713 struct target_sigaction *act; 3714 struct target_sigaction *oact; 3715 3716 if (arg2) { 3717 if (!lock_user_struct(VERIFY_READ, act, arg2, 1)) 3718 goto efault; 3719 } else 3720 act = NULL; 3721 if (arg3) { 3722 if (!lock_user_struct(VERIFY_WRITE, oact, arg3, 0)) { 3723 ret = -TARGET_EFAULT; 3724 goto rt_sigaction_fail; 3725 } 3726 } else 3727 oact = NULL; 3728 ret = get_errno(do_sigaction(arg1, act, oact)); 3729 rt_sigaction_fail: 3730 if (act) 3731 unlock_user_struct(act, arg2, 0); 3732 if (oact) 3733 unlock_user_struct(oact, arg3, 1); 3734 } 3735 break; 3736 #ifdef TARGET_NR_sgetmask /* not on alpha */ 3737 case TARGET_NR_sgetmask: 3738 { 3739 sigset_t cur_set; 3740 abi_ulong target_set; 3741 sigprocmask(0, NULL, &cur_set); 3742 host_to_target_old_sigset(&target_set, &cur_set); 3743 ret = target_set; 3744 } 3745 break; 3746 #endif 3747 #ifdef TARGET_NR_ssetmask /* not on alpha */ 3748 case TARGET_NR_ssetmask: 3749 { 3750 sigset_t set, oset, cur_set; 3751 abi_ulong target_set = arg1; 3752 sigprocmask(0, NULL, &cur_set); 3753 target_to_host_old_sigset(&set, &target_set); 3754 sigorset(&set, &set, &cur_set); 3755 sigprocmask(SIG_SETMASK, &set, &oset); 3756 host_to_target_old_sigset(&target_set, &oset); 3757 ret = target_set; 3758 } 3759 break; 3760 #endif 3761 #ifdef TARGET_NR_sigprocmask 3762 case TARGET_NR_sigprocmask: 3763 { 3764 int how = arg1; 3765 sigset_t set, oldset, *set_ptr; 3766 3767 if (arg2) { 3768 switch(how) { 3769 case TARGET_SIG_BLOCK: 3770 how = SIG_BLOCK; 3771 break; 3772 case TARGET_SIG_UNBLOCK: 3773 how = SIG_UNBLOCK; 3774 break; 3775 case TARGET_SIG_SETMASK: 3776 how = SIG_SETMASK; 3777 break; 3778 default: 3779 ret = -TARGET_EINVAL; 3780 goto fail; 3781 } 3782 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1))) 3783 goto efault; 3784 target_to_host_old_sigset(&set, p); 3785 unlock_user(p, arg2, 0); 3786 set_ptr = &set; 3787 } else { 3788 how = 0; 3789 set_ptr = NULL; 3790 } 3791 ret = get_errno(sigprocmask(arg1, set_ptr, &oldset)); 3792 if (!is_error(ret) && arg3) { 3793 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0))) 3794 goto efault; 3795 host_to_target_old_sigset(p, &oldset); 3796 unlock_user(p, arg3, sizeof(target_sigset_t)); 3797 } 3798 } 3799 break; 3800 #endif 3801 case TARGET_NR_rt_sigprocmask: 3802 { 3803 int how = arg1; 3804 sigset_t set, oldset, *set_ptr; 3805 3806 if (arg2) { 3807 switch(how) { 3808 case TARGET_SIG_BLOCK: 3809 how = SIG_BLOCK; 3810 break; 3811 case TARGET_SIG_UNBLOCK: 3812 how = SIG_UNBLOCK; 3813 break; 3814 case TARGET_SIG_SETMASK: 3815 how = SIG_SETMASK; 3816 break; 3817 default: 3818 ret = -TARGET_EINVAL; 3819 goto fail; 3820 } 3821 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1))) 3822 goto efault; 3823 target_to_host_sigset(&set, p); 3824 unlock_user(p, arg2, 0); 3825 set_ptr = &set; 3826 } else { 3827 how = 0; 3828 set_ptr = NULL; 3829 } 3830 ret = get_errno(sigprocmask(how, set_ptr, &oldset)); 3831 if (!is_error(ret) && arg3) { 3832 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0))) 3833 goto efault; 3834 host_to_target_sigset(p, &oldset); 3835 unlock_user(p, arg3, sizeof(target_sigset_t)); 3836 } 3837 } 3838 break; 3839 #ifdef TARGET_NR_sigpending 3840 case TARGET_NR_sigpending: 3841 { 3842 sigset_t set; 3843 ret = get_errno(sigpending(&set)); 3844 if (!is_error(ret)) { 3845 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0))) 3846 goto efault; 3847 host_to_target_old_sigset(p, &set); 3848 unlock_user(p, arg1, sizeof(target_sigset_t)); 3849 } 3850 } 3851 break; 3852 #endif 3853 case TARGET_NR_rt_sigpending: 3854 { 3855 sigset_t set; 3856 ret = get_errno(sigpending(&set)); 3857 if (!is_error(ret)) { 3858 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0))) 3859 goto efault; 3860 host_to_target_sigset(p, &set); 3861 unlock_user(p, arg1, sizeof(target_sigset_t)); 3862 } 3863 } 3864 break; 3865 #ifdef TARGET_NR_sigsuspend 3866 case TARGET_NR_sigsuspend: 3867 { 3868 sigset_t set; 3869 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1))) 3870 goto efault; 3871 target_to_host_old_sigset(&set, p); 3872 unlock_user(p, arg1, 0); 3873 ret = get_errno(sigsuspend(&set)); 3874 } 3875 break; 3876 #endif 3877 case TARGET_NR_rt_sigsuspend: 3878 { 3879 sigset_t set; 3880 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1))) 3881 goto efault; 3882 target_to_host_sigset(&set, p); 3883 unlock_user(p, arg1, 0); 3884 ret = get_errno(sigsuspend(&set)); 3885 } 3886 break; 3887 case TARGET_NR_rt_sigtimedwait: 3888 { 3889 sigset_t set; 3890 struct timespec uts, *puts; 3891 siginfo_t uinfo; 3892 3893 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1))) 3894 goto efault; 3895 target_to_host_sigset(&set, p); 3896 unlock_user(p, arg1, 0); 3897 if (arg3) { 3898 puts = &uts; 3899 target_to_host_timespec(puts, arg3); 3900 } else { 3901 puts = NULL; 3902 } 3903 ret = get_errno(sigtimedwait(&set, &uinfo, puts)); 3904 if (!is_error(ret) && arg2) { 3905 if (!(p = lock_user(VERIFY_WRITE, arg2, sizeof(target_sigset_t), 0))) 3906 goto efault; 3907 host_to_target_siginfo(p, &uinfo); 3908 unlock_user(p, arg2, sizeof(target_sigset_t)); 3909 } 3910 } 3911 break; 3912 case TARGET_NR_rt_sigqueueinfo: 3913 { 3914 siginfo_t uinfo; 3915 if (!(p = lock_user(VERIFY_READ, arg3, sizeof(target_sigset_t), 1))) 3916 goto efault; 3917 target_to_host_siginfo(&uinfo, p); 3918 unlock_user(p, arg1, 0); 3919 ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo)); 3920 } 3921 break; 3922 #ifdef TARGET_NR_sigreturn 3923 case TARGET_NR_sigreturn: 3924 /* NOTE: ret is eax, so not transcoding must be done */ 3925 ret = do_sigreturn(cpu_env); 3926 break; 3927 #endif 3928 case TARGET_NR_rt_sigreturn: 3929 /* NOTE: ret is eax, so not transcoding must be done */ 3930 ret = do_rt_sigreturn(cpu_env); 3931 break; 3932 case TARGET_NR_sethostname: 3933 if (!(p = lock_user_string(arg1))) 3934 goto efault; 3935 ret = get_errno(sethostname(p, arg2)); 3936 unlock_user(p, arg1, 0); 3937 break; 3938 case TARGET_NR_setrlimit: 3939 { 3940 /* XXX: convert resource ? */ 3941 int resource = arg1; 3942 struct target_rlimit *target_rlim; 3943 struct rlimit rlim; 3944 if (!lock_user_struct(VERIFY_READ, target_rlim, arg2, 1)) 3945 goto efault; 3946 rlim.rlim_cur = tswapl(target_rlim->rlim_cur); 3947 rlim.rlim_max = tswapl(target_rlim->rlim_max); 3948 unlock_user_struct(target_rlim, arg2, 0); 3949 ret = get_errno(setrlimit(resource, &rlim)); 3950 } 3951 break; 3952 case TARGET_NR_getrlimit: 3953 { 3954 /* XXX: convert resource ? */ 3955 int resource = arg1; 3956 struct target_rlimit *target_rlim; 3957 struct rlimit rlim; 3958 3959 ret = get_errno(getrlimit(resource, &rlim)); 3960 if (!is_error(ret)) { 3961 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0)) 3962 goto efault; 3963 rlim.rlim_cur = tswapl(target_rlim->rlim_cur); 3964 rlim.rlim_max = tswapl(target_rlim->rlim_max); 3965 unlock_user_struct(target_rlim, arg2, 1); 3966 } 3967 } 3968 break; 3969 case TARGET_NR_getrusage: 3970 { 3971 struct rusage rusage; 3972 ret = get_errno(getrusage(arg1, &rusage)); 3973 if (!is_error(ret)) { 3974 host_to_target_rusage(arg2, &rusage); 3975 } 3976 } 3977 break; 3978 case TARGET_NR_gettimeofday: 3979 { 3980 struct timeval tv; 3981 ret = get_errno(gettimeofday(&tv, NULL)); 3982 if (!is_error(ret)) { 3983 if (copy_to_user_timeval(arg1, &tv)) 3984 goto efault; 3985 } 3986 } 3987 break; 3988 case TARGET_NR_settimeofday: 3989 { 3990 struct timeval tv; 3991 if (copy_from_user_timeval(&tv, arg1)) 3992 goto efault; 3993 ret = get_errno(settimeofday(&tv, NULL)); 3994 } 3995 break; 3996 #ifdef TARGET_NR_select 3997 case TARGET_NR_select: 3998 { 3999 struct target_sel_arg_struct *sel; 4000 abi_ulong inp, outp, exp, tvp; 4001 long nsel; 4002 4003 if (!lock_user_struct(VERIFY_READ, sel, arg1, 1)) 4004 goto efault; 4005 nsel = tswapl(sel->n); 4006 inp = tswapl(sel->inp); 4007 outp = tswapl(sel->outp); 4008 exp = tswapl(sel->exp); 4009 tvp = tswapl(sel->tvp); 4010 unlock_user_struct(sel, arg1, 0); 4011 ret = do_select(nsel, inp, outp, exp, tvp); 4012 } 4013 break; 4014 #endif 4015 case TARGET_NR_symlink: 4016 { 4017 void *p2; 4018 p = lock_user_string(arg1); 4019 p2 = lock_user_string(arg2); 4020 if (!p || !p2) 4021 ret = -TARGET_EFAULT; 4022 else 4023 ret = get_errno(symlink(p, p2)); 4024 unlock_user(p2, arg2, 0); 4025 unlock_user(p, arg1, 0); 4026 } 4027 break; 4028 #if defined(TARGET_NR_symlinkat) && defined(__NR_symlinkat) 4029 case TARGET_NR_symlinkat: 4030 { 4031 void *p2; 4032 p = lock_user_string(arg1); 4033 p2 = lock_user_string(arg3); 4034 if (!p || !p2) 4035 ret = -TARGET_EFAULT; 4036 else 4037 ret = get_errno(sys_symlinkat(p, arg2, p2)); 4038 unlock_user(p2, arg3, 0); 4039 unlock_user(p, arg1, 0); 4040 } 4041 break; 4042 #endif 4043 #ifdef TARGET_NR_oldlstat 4044 case TARGET_NR_oldlstat: 4045 goto unimplemented; 4046 #endif 4047 case TARGET_NR_readlink: 4048 { 4049 void *p2; 4050 p = lock_user_string(arg1); 4051 p2 = lock_user(VERIFY_WRITE, arg2, arg3, 0); 4052 if (!p || !p2) 4053 ret = -TARGET_EFAULT; 4054 else 4055 ret = get_errno(readlink(path(p), p2, arg3)); 4056 unlock_user(p2, arg2, ret); 4057 unlock_user(p, arg1, 0); 4058 } 4059 break; 4060 #if defined(TARGET_NR_readlinkat) && defined(__NR_readlinkat) 4061 case TARGET_NR_readlinkat: 4062 { 4063 void *p2; 4064 p = lock_user_string(arg2); 4065 p2 = lock_user(VERIFY_WRITE, arg3, arg4, 0); 4066 if (!p || !p2) 4067 ret = -TARGET_EFAULT; 4068 else 4069 ret = get_errno(sys_readlinkat(arg1, path(p), p2, arg4)); 4070 unlock_user(p2, arg3, ret); 4071 unlock_user(p, arg2, 0); 4072 } 4073 break; 4074 #endif 4075 #ifdef TARGET_NR_uselib 4076 case TARGET_NR_uselib: 4077 goto unimplemented; 4078 #endif 4079 #ifdef TARGET_NR_swapon 4080 case TARGET_NR_swapon: 4081 if (!(p = lock_user_string(arg1))) 4082 goto efault; 4083 ret = get_errno(swapon(p, arg2)); 4084 unlock_user(p, arg1, 0); 4085 break; 4086 #endif 4087 case TARGET_NR_reboot: 4088 goto unimplemented; 4089 #ifdef TARGET_NR_readdir 4090 case TARGET_NR_readdir: 4091 goto unimplemented; 4092 #endif 4093 #ifdef TARGET_NR_mmap 4094 case TARGET_NR_mmap: 4095 #if (defined(TARGET_I386) && defined(TARGET_ABI32)) || defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_CRIS) 4096 { 4097 abi_ulong *v; 4098 abi_ulong v1, v2, v3, v4, v5, v6; 4099 if (!(v = lock_user(VERIFY_READ, arg1, 6 * sizeof(abi_ulong), 1))) 4100 goto efault; 4101 v1 = tswapl(v[0]); 4102 v2 = tswapl(v[1]); 4103 v3 = tswapl(v[2]); 4104 v4 = tswapl(v[3]); 4105 v5 = tswapl(v[4]); 4106 v6 = tswapl(v[5]); 4107 unlock_user(v, arg1, 0); 4108 ret = get_errno(target_mmap(v1, v2, v3, 4109 target_to_host_bitmask(v4, mmap_flags_tbl), 4110 v5, v6)); 4111 } 4112 #else 4113 ret = get_errno(target_mmap(arg1, arg2, arg3, 4114 target_to_host_bitmask(arg4, mmap_flags_tbl), 4115 arg5, 4116 arg6)); 4117 #endif 4118 break; 4119 #endif 4120 #ifdef TARGET_NR_mmap2 4121 case TARGET_NR_mmap2: 4122 #ifndef MMAP_SHIFT 4123 #define MMAP_SHIFT 12 4124 #endif 4125 ret = get_errno(target_mmap(arg1, arg2, arg3, 4126 target_to_host_bitmask(arg4, mmap_flags_tbl), 4127 arg5, 4128 arg6 << MMAP_SHIFT)); 4129 break; 4130 #endif 4131 case TARGET_NR_munmap: 4132 ret = get_errno(target_munmap(arg1, arg2)); 4133 break; 4134 case TARGET_NR_mprotect: 4135 ret = get_errno(target_mprotect(arg1, arg2, arg3)); 4136 break; 4137 #ifdef TARGET_NR_mremap 4138 case TARGET_NR_mremap: 4139 ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5)); 4140 break; 4141 #endif 4142 /* ??? msync/mlock/munlock are broken for softmmu. */ 4143 #ifdef TARGET_NR_msync 4144 case TARGET_NR_msync: 4145 ret = get_errno(msync(g2h(arg1), arg2, arg3)); 4146 break; 4147 #endif 4148 #ifdef TARGET_NR_mlock 4149 case TARGET_NR_mlock: 4150 ret = get_errno(mlock(g2h(arg1), arg2)); 4151 break; 4152 #endif 4153 #ifdef TARGET_NR_munlock 4154 case TARGET_NR_munlock: 4155 ret = get_errno(munlock(g2h(arg1), arg2)); 4156 break; 4157 #endif 4158 #ifdef TARGET_NR_mlockall 4159 case TARGET_NR_mlockall: 4160 ret = get_errno(mlockall(arg1)); 4161 break; 4162 #endif 4163 #ifdef TARGET_NR_munlockall 4164 case TARGET_NR_munlockall: 4165 ret = get_errno(munlockall()); 4166 break; 4167 #endif 4168 case TARGET_NR_truncate: 4169 if (!(p = lock_user_string(arg1))) 4170 goto efault; 4171 ret = get_errno(truncate(p, arg2)); 4172 unlock_user(p, arg1, 0); 4173 break; 4174 case TARGET_NR_ftruncate: 4175 ret = get_errno(ftruncate(arg1, arg2)); 4176 break; 4177 case TARGET_NR_fchmod: 4178 ret = get_errno(fchmod(arg1, arg2)); 4179 break; 4180 #if defined(TARGET_NR_fchmodat) && defined(__NR_fchmodat) 4181 case TARGET_NR_fchmodat: 4182 if (!(p = lock_user_string(arg2))) 4183 goto efault; 4184 ret = get_errno(sys_fchmodat(arg1, p, arg3, arg4)); 4185 unlock_user(p, arg2, 0); 4186 break; 4187 #endif 4188 case TARGET_NR_getpriority: 4189 /* libc does special remapping of the return value of 4190 * sys_getpriority() so it's just easiest to call 4191 * sys_getpriority() directly rather than through libc. */ 4192 ret = sys_getpriority(arg1, arg2); 4193 break; 4194 case TARGET_NR_setpriority: 4195 ret = get_errno(setpriority(arg1, arg2, arg3)); 4196 break; 4197 #ifdef TARGET_NR_profil 4198 case TARGET_NR_profil: 4199 goto unimplemented; 4200 #endif 4201 case TARGET_NR_statfs: 4202 if (!(p = lock_user_string(arg1))) 4203 goto efault; 4204 ret = get_errno(statfs(path(p), &stfs)); 4205 unlock_user(p, arg1, 0); 4206 convert_statfs: 4207 if (!is_error(ret)) { 4208 struct target_statfs *target_stfs; 4209 4210 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg2, 0)) 4211 goto efault; 4212 __put_user(stfs.f_type, &target_stfs->f_type); 4213 __put_user(stfs.f_bsize, &target_stfs->f_bsize); 4214 __put_user(stfs.f_blocks, &target_stfs->f_blocks); 4215 __put_user(stfs.f_bfree, &target_stfs->f_bfree); 4216 __put_user(stfs.f_bavail, &target_stfs->f_bavail); 4217 __put_user(stfs.f_files, &target_stfs->f_files); 4218 __put_user(stfs.f_ffree, &target_stfs->f_ffree); 4219 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]); 4220 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]); 4221 __put_user(stfs.f_namelen, &target_stfs->f_namelen); 4222 unlock_user_struct(target_stfs, arg2, 1); 4223 } 4224 break; 4225 case TARGET_NR_fstatfs: 4226 ret = get_errno(fstatfs(arg1, &stfs)); 4227 goto convert_statfs; 4228 #ifdef TARGET_NR_statfs64 4229 case TARGET_NR_statfs64: 4230 if (!(p = lock_user_string(arg1))) 4231 goto efault; 4232 ret = get_errno(statfs(path(p), &stfs)); 4233 unlock_user(p, arg1, 0); 4234 convert_statfs64: 4235 if (!is_error(ret)) { 4236 struct target_statfs64 *target_stfs; 4237 4238 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg3, 0)) 4239 goto efault; 4240 __put_user(stfs.f_type, &target_stfs->f_type); 4241 __put_user(stfs.f_bsize, &target_stfs->f_bsize); 4242 __put_user(stfs.f_blocks, &target_stfs->f_blocks); 4243 __put_user(stfs.f_bfree, &target_stfs->f_bfree); 4244 __put_user(stfs.f_bavail, &target_stfs->f_bavail); 4245 __put_user(stfs.f_files, &target_stfs->f_files); 4246 __put_user(stfs.f_ffree, &target_stfs->f_ffree); 4247 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]); 4248 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]); 4249 __put_user(stfs.f_namelen, &target_stfs->f_namelen); 4250 unlock_user_struct(target_stfs, arg3, 1); 4251 } 4252 break; 4253 case TARGET_NR_fstatfs64: 4254 ret = get_errno(fstatfs(arg1, &stfs)); 4255 goto convert_statfs64; 4256 #endif 4257 #ifdef TARGET_NR_ioperm 4258 case TARGET_NR_ioperm: 4259 goto unimplemented; 4260 #endif 4261 #ifdef TARGET_NR_socketcall 4262 case TARGET_NR_socketcall: 4263 ret = do_socketcall(arg1, arg2); 4264 break; 4265 #endif 4266 #ifdef TARGET_NR_accept 4267 case TARGET_NR_accept: 4268 ret = do_accept(arg1, arg2, arg3); 4269 break; 4270 #endif 4271 #ifdef TARGET_NR_bind 4272 case TARGET_NR_bind: 4273 ret = do_bind(arg1, arg2, arg3); 4274 break; 4275 #endif 4276 #ifdef TARGET_NR_connect 4277 case TARGET_NR_connect: 4278 ret = do_connect(arg1, arg2, arg3); 4279 break; 4280 #endif 4281 #ifdef TARGET_NR_getpeername 4282 case TARGET_NR_getpeername: 4283 ret = do_getpeername(arg1, arg2, arg3); 4284 break; 4285 #endif 4286 #ifdef TARGET_NR_getsockname 4287 case TARGET_NR_getsockname: 4288 ret = do_getsockname(arg1, arg2, arg3); 4289 break; 4290 #endif 4291 #ifdef TARGET_NR_getsockopt 4292 case TARGET_NR_getsockopt: 4293 ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5); 4294 break; 4295 #endif 4296 #ifdef TARGET_NR_listen 4297 case TARGET_NR_listen: 4298 ret = get_errno(listen(arg1, arg2)); 4299 break; 4300 #endif 4301 #ifdef TARGET_NR_recv 4302 case TARGET_NR_recv: 4303 ret = do_recvfrom(arg1, arg2, arg3, arg4, 0, 0); 4304 break; 4305 #endif 4306 #ifdef TARGET_NR_recvfrom 4307 case TARGET_NR_recvfrom: 4308 ret = do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6); 4309 break; 4310 #endif 4311 #ifdef TARGET_NR_recvmsg 4312 case TARGET_NR_recvmsg: 4313 ret = do_sendrecvmsg(arg1, arg2, arg3, 0); 4314 break; 4315 #endif 4316 #ifdef TARGET_NR_send 4317 case TARGET_NR_send: 4318 ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0); 4319 break; 4320 #endif 4321 #ifdef TARGET_NR_sendmsg 4322 case TARGET_NR_sendmsg: 4323 ret = do_sendrecvmsg(arg1, arg2, arg3, 1); 4324 break; 4325 #endif 4326 #ifdef TARGET_NR_sendto 4327 case TARGET_NR_sendto: 4328 ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6); 4329 break; 4330 #endif 4331 #ifdef TARGET_NR_shutdown 4332 case TARGET_NR_shutdown: 4333 ret = get_errno(shutdown(arg1, arg2)); 4334 break; 4335 #endif 4336 #ifdef TARGET_NR_socket 4337 case TARGET_NR_socket: 4338 ret = do_socket(arg1, arg2, arg3); 4339 break; 4340 #endif 4341 #ifdef TARGET_NR_socketpair 4342 case TARGET_NR_socketpair: 4343 ret = do_socketpair(arg1, arg2, arg3, arg4); 4344 break; 4345 #endif 4346 #ifdef TARGET_NR_setsockopt 4347 case TARGET_NR_setsockopt: 4348 ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5); 4349 break; 4350 #endif 4351 4352 case TARGET_NR_syslog: 4353 if (!(p = lock_user_string(arg2))) 4354 goto efault; 4355 ret = get_errno(sys_syslog((int)arg1, p, (int)arg3)); 4356 unlock_user(p, arg2, 0); 4357 break; 4358 4359 case TARGET_NR_setitimer: 4360 { 4361 struct itimerval value, ovalue, *pvalue; 4362 4363 if (arg2) { 4364 pvalue = &value; 4365 if (copy_from_user_timeval(&pvalue->it_interval, arg2) 4366 || copy_from_user_timeval(&pvalue->it_value, 4367 arg2 + sizeof(struct target_timeval))) 4368 goto efault; 4369 } else { 4370 pvalue = NULL; 4371 } 4372 ret = get_errno(setitimer(arg1, pvalue, &ovalue)); 4373 if (!is_error(ret) && arg3) { 4374 if (copy_to_user_timeval(arg3, 4375 &ovalue.it_interval) 4376 || copy_to_user_timeval(arg3 + sizeof(struct target_timeval), 4377 &ovalue.it_value)) 4378 goto efault; 4379 } 4380 } 4381 break; 4382 case TARGET_NR_getitimer: 4383 { 4384 struct itimerval value; 4385 4386 ret = get_errno(getitimer(arg1, &value)); 4387 if (!is_error(ret) && arg2) { 4388 if (copy_to_user_timeval(arg2, 4389 &value.it_interval) 4390 || copy_to_user_timeval(arg2 + sizeof(struct target_timeval), 4391 &value.it_value)) 4392 goto efault; 4393 } 4394 } 4395 break; 4396 case TARGET_NR_stat: 4397 if (!(p = lock_user_string(arg1))) 4398 goto efault; 4399 ret = get_errno(stat(path(p), &st)); 4400 unlock_user(p, arg1, 0); 4401 goto do_stat; 4402 case TARGET_NR_lstat: 4403 if (!(p = lock_user_string(arg1))) 4404 goto efault; 4405 ret = get_errno(lstat(path(p), &st)); 4406 unlock_user(p, arg1, 0); 4407 goto do_stat; 4408 case TARGET_NR_fstat: 4409 { 4410 ret = get_errno(fstat(arg1, &st)); 4411 do_stat: 4412 if (!is_error(ret)) { 4413 struct target_stat *target_st; 4414 4415 if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0)) 4416 goto efault; 4417 __put_user(st.st_dev, &target_st->st_dev); 4418 __put_user(st.st_ino, &target_st->st_ino); 4419 __put_user(st.st_mode, &target_st->st_mode); 4420 __put_user(st.st_uid, &target_st->st_uid); 4421 __put_user(st.st_gid, &target_st->st_gid); 4422 __put_user(st.st_nlink, &target_st->st_nlink); 4423 __put_user(st.st_rdev, &target_st->st_rdev); 4424 __put_user(st.st_size, &target_st->st_size); 4425 __put_user(st.st_blksize, &target_st->st_blksize); 4426 __put_user(st.st_blocks, &target_st->st_blocks); 4427 __put_user(st.st_atime, &target_st->target_st_atime); 4428 __put_user(st.st_mtime, &target_st->target_st_mtime); 4429 __put_user(st.st_ctime, &target_st->target_st_ctime); 4430 unlock_user_struct(target_st, arg2, 1); 4431 } 4432 } 4433 break; 4434 #ifdef TARGET_NR_olduname 4435 case TARGET_NR_olduname: 4436 goto unimplemented; 4437 #endif 4438 #ifdef TARGET_NR_iopl 4439 case TARGET_NR_iopl: 4440 goto unimplemented; 4441 #endif 4442 case TARGET_NR_vhangup: 4443 ret = get_errno(vhangup()); 4444 break; 4445 #ifdef TARGET_NR_idle 4446 case TARGET_NR_idle: 4447 goto unimplemented; 4448 #endif 4449 #ifdef TARGET_NR_syscall 4450 case TARGET_NR_syscall: 4451 ret = do_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,0); 4452 break; 4453 #endif 4454 case TARGET_NR_wait4: 4455 { 4456 int status; 4457 abi_long status_ptr = arg2; 4458 struct rusage rusage, *rusage_ptr; 4459 abi_ulong target_rusage = arg4; 4460 if (target_rusage) 4461 rusage_ptr = &rusage; 4462 else 4463 rusage_ptr = NULL; 4464 ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr)); 4465 if (!is_error(ret)) { 4466 if (status_ptr) { 4467 if (put_user_s32(status, status_ptr)) 4468 goto efault; 4469 } 4470 if (target_rusage) 4471 host_to_target_rusage(target_rusage, &rusage); 4472 } 4473 } 4474 break; 4475 #ifdef TARGET_NR_swapoff 4476 case TARGET_NR_swapoff: 4477 if (!(p = lock_user_string(arg1))) 4478 goto efault; 4479 ret = get_errno(swapoff(p)); 4480 unlock_user(p, arg1, 0); 4481 break; 4482 #endif 4483 case TARGET_NR_sysinfo: 4484 { 4485 struct target_sysinfo *target_value; 4486 struct sysinfo value; 4487 ret = get_errno(sysinfo(&value)); 4488 if (!is_error(ret) && arg1) 4489 { 4490 if (!lock_user_struct(VERIFY_WRITE, target_value, arg1, 0)) 4491 goto efault; 4492 __put_user(value.uptime, &target_value->uptime); 4493 __put_user(value.loads[0], &target_value->loads[0]); 4494 __put_user(value.loads[1], &target_value->loads[1]); 4495 __put_user(value.loads[2], &target_value->loads[2]); 4496 __put_user(value.totalram, &target_value->totalram); 4497 __put_user(value.freeram, &target_value->freeram); 4498 __put_user(value.sharedram, &target_value->sharedram); 4499 __put_user(value.bufferram, &target_value->bufferram); 4500 __put_user(value.totalswap, &target_value->totalswap); 4501 __put_user(value.freeswap, &target_value->freeswap); 4502 __put_user(value.procs, &target_value->procs); 4503 __put_user(value.totalhigh, &target_value->totalhigh); 4504 __put_user(value.freehigh, &target_value->freehigh); 4505 __put_user(value.mem_unit, &target_value->mem_unit); 4506 unlock_user_struct(target_value, arg1, 1); 4507 } 4508 } 4509 break; 4510 #ifdef TARGET_NR_ipc 4511 case TARGET_NR_ipc: 4512 ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6); 4513 break; 4514 #endif 4515 case TARGET_NR_fsync: 4516 ret = get_errno(fsync(arg1)); 4517 break; 4518 case TARGET_NR_clone: 4519 ret = get_errno(do_fork(cpu_env, arg1, arg2)); 4520 break; 4521 #ifdef __NR_exit_group 4522 /* new thread calls */ 4523 case TARGET_NR_exit_group: 4524 gdb_exit(cpu_env, arg1); 4525 ret = get_errno(exit_group(arg1)); 4526 break; 4527 #endif 4528 case TARGET_NR_setdomainname: 4529 if (!(p = lock_user_string(arg1))) 4530 goto efault; 4531 ret = get_errno(setdomainname(p, arg2)); 4532 unlock_user(p, arg1, 0); 4533 break; 4534 case TARGET_NR_uname: 4535 /* no need to transcode because we use the linux syscall */ 4536 { 4537 struct new_utsname * buf; 4538 4539 if (!lock_user_struct(VERIFY_WRITE, buf, arg1, 0)) 4540 goto efault; 4541 ret = get_errno(sys_uname(buf)); 4542 if (!is_error(ret)) { 4543 /* Overrite the native machine name with whatever is being 4544 emulated. */ 4545 strcpy (buf->machine, UNAME_MACHINE); 4546 /* Allow the user to override the reported release. */ 4547 if (qemu_uname_release && *qemu_uname_release) 4548 strcpy (buf->release, qemu_uname_release); 4549 } 4550 unlock_user_struct(buf, arg1, 1); 4551 } 4552 break; 4553 #ifdef TARGET_I386 4554 case TARGET_NR_modify_ldt: 4555 ret = do_modify_ldt(cpu_env, arg1, arg2, arg3); 4556 break; 4557 #if !defined(TARGET_X86_64) 4558 case TARGET_NR_vm86old: 4559 goto unimplemented; 4560 case TARGET_NR_vm86: 4561 ret = do_vm86(cpu_env, arg1, arg2); 4562 break; 4563 #endif 4564 #endif 4565 case TARGET_NR_adjtimex: 4566 goto unimplemented; 4567 #ifdef TARGET_NR_create_module 4568 case TARGET_NR_create_module: 4569 #endif 4570 case TARGET_NR_init_module: 4571 case TARGET_NR_delete_module: 4572 #ifdef TARGET_NR_get_kernel_syms 4573 case TARGET_NR_get_kernel_syms: 4574 #endif 4575 goto unimplemented; 4576 case TARGET_NR_quotactl: 4577 goto unimplemented; 4578 case TARGET_NR_getpgid: 4579 ret = get_errno(getpgid(arg1)); 4580 break; 4581 case TARGET_NR_fchdir: 4582 ret = get_errno(fchdir(arg1)); 4583 break; 4584 #ifdef TARGET_NR_bdflush /* not on x86_64 */ 4585 case TARGET_NR_bdflush: 4586 goto unimplemented; 4587 #endif 4588 #ifdef TARGET_NR_sysfs 4589 case TARGET_NR_sysfs: 4590 goto unimplemented; 4591 #endif 4592 case TARGET_NR_personality: 4593 ret = get_errno(personality(arg1)); 4594 break; 4595 #ifdef TARGET_NR_afs_syscall 4596 case TARGET_NR_afs_syscall: 4597 goto unimplemented; 4598 #endif 4599 #ifdef TARGET_NR__llseek /* Not on alpha */ 4600 case TARGET_NR__llseek: 4601 { 4602 #if defined (__x86_64__) 4603 ret = get_errno(lseek(arg1, ((uint64_t )arg2 << 32) | arg3, arg5)); 4604 if (put_user_s64(ret, arg4)) 4605 goto efault; 4606 #else 4607 int64_t res; 4608 ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5)); 4609 if (put_user_s64(res, arg4)) 4610 goto efault; 4611 #endif 4612 } 4613 break; 4614 #endif 4615 case TARGET_NR_getdents: 4616 #if TARGET_ABI_BITS != 32 4617 goto unimplemented; 4618 #elif TARGET_ABI_BITS == 32 && HOST_LONG_BITS == 64 4619 { 4620 struct target_dirent *target_dirp; 4621 struct dirent *dirp; 4622 abi_long count = arg3; 4623 4624 dirp = malloc(count); 4625 if (!dirp) { 4626 ret = -TARGET_ENOMEM; 4627 goto fail; 4628 } 4629 4630 ret = get_errno(sys_getdents(arg1, dirp, count)); 4631 if (!is_error(ret)) { 4632 struct dirent *de; 4633 struct target_dirent *tde; 4634 int len = ret; 4635 int reclen, treclen; 4636 int count1, tnamelen; 4637 4638 count1 = 0; 4639 de = dirp; 4640 if (!(target_dirp = lock_user(VERIFY_WRITE, arg2, count, 0))) 4641 goto efault; 4642 tde = target_dirp; 4643 while (len > 0) { 4644 reclen = de->d_reclen; 4645 treclen = reclen - (2 * (sizeof(long) - sizeof(abi_long))); 4646 tde->d_reclen = tswap16(treclen); 4647 tde->d_ino = tswapl(de->d_ino); 4648 tde->d_off = tswapl(de->d_off); 4649 tnamelen = treclen - (2 * sizeof(abi_long) + 2); 4650 if (tnamelen > 256) 4651 tnamelen = 256; 4652 /* XXX: may not be correct */ 4653 strncpy(tde->d_name, de->d_name, tnamelen); 4654 de = (struct dirent *)((char *)de + reclen); 4655 len -= reclen; 4656 tde = (struct target_dirent *)((char *)tde + treclen); 4657 count1 += treclen; 4658 } 4659 ret = count1; 4660 unlock_user(target_dirp, arg2, ret); 4661 } 4662 free(dirp); 4663 } 4664 #else 4665 { 4666 struct dirent *dirp; 4667 abi_long count = arg3; 4668 4669 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0))) 4670 goto efault; 4671 ret = get_errno(sys_getdents(arg1, dirp, count)); 4672 if (!is_error(ret)) { 4673 struct dirent *de; 4674 int len = ret; 4675 int reclen; 4676 de = dirp; 4677 while (len > 0) { 4678 reclen = de->d_reclen; 4679 if (reclen > len) 4680 break; 4681 de->d_reclen = tswap16(reclen); 4682 tswapls(&de->d_ino); 4683 tswapls(&de->d_off); 4684 de = (struct dirent *)((char *)de + reclen); 4685 len -= reclen; 4686 } 4687 } 4688 unlock_user(dirp, arg2, ret); 4689 } 4690 #endif 4691 break; 4692 #if defined(TARGET_NR_getdents64) && defined(__NR_getdents64) 4693 case TARGET_NR_getdents64: 4694 { 4695 struct dirent64 *dirp; 4696 abi_long count = arg3; 4697 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0))) 4698 goto efault; 4699 ret = get_errno(sys_getdents64(arg1, dirp, count)); 4700 if (!is_error(ret)) { 4701 struct dirent64 *de; 4702 int len = ret; 4703 int reclen; 4704 de = dirp; 4705 while (len > 0) { 4706 reclen = de->d_reclen; 4707 if (reclen > len) 4708 break; 4709 de->d_reclen = tswap16(reclen); 4710 tswap64s((uint64_t *)&de->d_ino); 4711 tswap64s((uint64_t *)&de->d_off); 4712 de = (struct dirent64 *)((char *)de + reclen); 4713 len -= reclen; 4714 } 4715 } 4716 unlock_user(dirp, arg2, ret); 4717 } 4718 break; 4719 #endif /* TARGET_NR_getdents64 */ 4720 #ifdef TARGET_NR__newselect 4721 case TARGET_NR__newselect: 4722 ret = do_select(arg1, arg2, arg3, arg4, arg5); 4723 break; 4724 #endif 4725 #ifdef TARGET_NR_poll 4726 case TARGET_NR_poll: 4727 { 4728 struct target_pollfd *target_pfd; 4729 unsigned int nfds = arg2; 4730 int timeout = arg3; 4731 struct pollfd *pfd; 4732 unsigned int i; 4733 4734 target_pfd = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_pollfd) * nfds, 1); 4735 if (!target_pfd) 4736 goto efault; 4737 pfd = alloca(sizeof(struct pollfd) * nfds); 4738 for(i = 0; i < nfds; i++) { 4739 pfd[i].fd = tswap32(target_pfd[i].fd); 4740 pfd[i].events = tswap16(target_pfd[i].events); 4741 } 4742 ret = get_errno(poll(pfd, nfds, timeout)); 4743 if (!is_error(ret)) { 4744 for(i = 0; i < nfds; i++) { 4745 target_pfd[i].revents = tswap16(pfd[i].revents); 4746 } 4747 ret += nfds * (sizeof(struct target_pollfd) 4748 - sizeof(struct pollfd)); 4749 } 4750 unlock_user(target_pfd, arg1, ret); 4751 } 4752 break; 4753 #endif 4754 case TARGET_NR_flock: 4755 /* NOTE: the flock constant seems to be the same for every 4756 Linux platform */ 4757 ret = get_errno(flock(arg1, arg2)); 4758 break; 4759 case TARGET_NR_readv: 4760 { 4761 int count = arg3; 4762 struct iovec *vec; 4763 4764 vec = alloca(count * sizeof(struct iovec)); 4765 if (lock_iovec(VERIFY_WRITE, vec, arg2, count, 0) < 0) 4766 goto efault; 4767 ret = get_errno(readv(arg1, vec, count)); 4768 unlock_iovec(vec, arg2, count, 1); 4769 } 4770 break; 4771 case TARGET_NR_writev: 4772 { 4773 int count = arg3; 4774 struct iovec *vec; 4775 4776 vec = alloca(count * sizeof(struct iovec)); 4777 if (lock_iovec(VERIFY_READ, vec, arg2, count, 1) < 0) 4778 goto efault; 4779 ret = get_errno(writev(arg1, vec, count)); 4780 unlock_iovec(vec, arg2, count, 0); 4781 } 4782 break; 4783 case TARGET_NR_getsid: 4784 ret = get_errno(getsid(arg1)); 4785 break; 4786 #if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */ 4787 case TARGET_NR_fdatasync: 4788 ret = get_errno(fdatasync(arg1)); 4789 break; 4790 #endif 4791 case TARGET_NR__sysctl: 4792 /* We don't implement this, but ENOTDIR is always a safe 4793 return value. */ 4794 ret = -TARGET_ENOTDIR; 4795 break; 4796 case TARGET_NR_sched_setparam: 4797 { 4798 struct sched_param *target_schp; 4799 struct sched_param schp; 4800 4801 if (!lock_user_struct(VERIFY_READ, target_schp, arg2, 1)) 4802 goto efault; 4803 schp.sched_priority = tswap32(target_schp->sched_priority); 4804 unlock_user_struct(target_schp, arg2, 0); 4805 ret = get_errno(sched_setparam(arg1, &schp)); 4806 } 4807 break; 4808 case TARGET_NR_sched_getparam: 4809 { 4810 struct sched_param *target_schp; 4811 struct sched_param schp; 4812 ret = get_errno(sched_getparam(arg1, &schp)); 4813 if (!is_error(ret)) { 4814 if (!lock_user_struct(VERIFY_WRITE, target_schp, arg2, 0)) 4815 goto efault; 4816 target_schp->sched_priority = tswap32(schp.sched_priority); 4817 unlock_user_struct(target_schp, arg2, 1); 4818 } 4819 } 4820 break; 4821 case TARGET_NR_sched_setscheduler: 4822 { 4823 struct sched_param *target_schp; 4824 struct sched_param schp; 4825 if (!lock_user_struct(VERIFY_READ, target_schp, arg3, 1)) 4826 goto efault; 4827 schp.sched_priority = tswap32(target_schp->sched_priority); 4828 unlock_user_struct(target_schp, arg3, 0); 4829 ret = get_errno(sched_setscheduler(arg1, arg2, &schp)); 4830 } 4831 break; 4832 case TARGET_NR_sched_getscheduler: 4833 ret = get_errno(sched_getscheduler(arg1)); 4834 break; 4835 case TARGET_NR_sched_yield: 4836 ret = get_errno(sched_yield()); 4837 break; 4838 case TARGET_NR_sched_get_priority_max: 4839 ret = get_errno(sched_get_priority_max(arg1)); 4840 break; 4841 case TARGET_NR_sched_get_priority_min: 4842 ret = get_errno(sched_get_priority_min(arg1)); 4843 break; 4844 case TARGET_NR_sched_rr_get_interval: 4845 { 4846 struct timespec ts; 4847 ret = get_errno(sched_rr_get_interval(arg1, &ts)); 4848 if (!is_error(ret)) { 4849 host_to_target_timespec(arg2, &ts); 4850 } 4851 } 4852 break; 4853 case TARGET_NR_nanosleep: 4854 { 4855 struct timespec req, rem; 4856 target_to_host_timespec(&req, arg1); 4857 ret = get_errno(nanosleep(&req, &rem)); 4858 if (is_error(ret) && arg2) { 4859 host_to_target_timespec(arg2, &rem); 4860 } 4861 } 4862 break; 4863 #ifdef TARGET_NR_query_module 4864 case TARGET_NR_query_module: 4865 goto unimplemented; 4866 #endif 4867 #ifdef TARGET_NR_nfsservctl 4868 case TARGET_NR_nfsservctl: 4869 goto unimplemented; 4870 #endif 4871 case TARGET_NR_prctl: 4872 switch (arg1) 4873 { 4874 case PR_GET_PDEATHSIG: 4875 { 4876 int deathsig; 4877 ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5)); 4878 if (!is_error(ret) && arg2 4879 && put_user_ual(deathsig, arg2)) 4880 goto efault; 4881 } 4882 break; 4883 default: 4884 ret = get_errno(prctl(arg1, arg2, arg3, arg4, arg5)); 4885 break; 4886 } 4887 break; 4888 #ifdef TARGET_NR_arch_prctl 4889 case TARGET_NR_arch_prctl: 4890 #if defined(TARGET_I386) && !defined(TARGET_ABI32) 4891 ret = do_arch_prctl(cpu_env, arg1, arg2); 4892 break; 4893 #else 4894 goto unimplemented; 4895 #endif 4896 #endif 4897 #ifdef TARGET_NR_pread 4898 case TARGET_NR_pread: 4899 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0))) 4900 goto efault; 4901 ret = get_errno(pread(arg1, p, arg3, arg4)); 4902 unlock_user(p, arg2, ret); 4903 break; 4904 case TARGET_NR_pwrite: 4905 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1))) 4906 goto efault; 4907 ret = get_errno(pwrite(arg1, p, arg3, arg4)); 4908 unlock_user(p, arg2, 0); 4909 break; 4910 #endif 4911 #ifdef TARGET_NR_pread64 4912 case TARGET_NR_pread64: 4913 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0))) 4914 goto efault; 4915 ret = get_errno(pread64(arg1, p, arg3, target_offset64(arg4, arg5))); 4916 unlock_user(p, arg2, ret); 4917 break; 4918 case TARGET_NR_pwrite64: 4919 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1))) 4920 goto efault; 4921 ret = get_errno(pwrite64(arg1, p, arg3, target_offset64(arg4, arg5))); 4922 unlock_user(p, arg2, 0); 4923 break; 4924 #endif 4925 case TARGET_NR_getcwd: 4926 if (!(p = lock_user(VERIFY_WRITE, arg1, arg2, 0))) 4927 goto efault; 4928 ret = get_errno(sys_getcwd1(p, arg2)); 4929 unlock_user(p, arg1, ret); 4930 break; 4931 case TARGET_NR_capget: 4932 goto unimplemented; 4933 case TARGET_NR_capset: 4934 goto unimplemented; 4935 case TARGET_NR_sigaltstack: 4936 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_MIPS) || \ 4937 defined(TARGET_SPARC) || defined(TARGET_PPC) || defined(TARGET_ALPHA) 4938 ret = do_sigaltstack(arg1, arg2, get_sp_from_cpustate((CPUState *)cpu_env)); 4939 break; 4940 #else 4941 goto unimplemented; 4942 #endif 4943 case TARGET_NR_sendfile: 4944 goto unimplemented; 4945 #ifdef TARGET_NR_getpmsg 4946 case TARGET_NR_getpmsg: 4947 goto unimplemented; 4948 #endif 4949 #ifdef TARGET_NR_putpmsg 4950 case TARGET_NR_putpmsg: 4951 goto unimplemented; 4952 #endif 4953 #ifdef TARGET_NR_vfork 4954 case TARGET_NR_vfork: 4955 ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0)); 4956 break; 4957 #endif 4958 #ifdef TARGET_NR_ugetrlimit 4959 case TARGET_NR_ugetrlimit: 4960 { 4961 struct rlimit rlim; 4962 ret = get_errno(getrlimit(arg1, &rlim)); 4963 if (!is_error(ret)) { 4964 struct target_rlimit *target_rlim; 4965 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0)) 4966 goto efault; 4967 target_rlim->rlim_cur = tswapl(rlim.rlim_cur); 4968 target_rlim->rlim_max = tswapl(rlim.rlim_max); 4969 unlock_user_struct(target_rlim, arg2, 1); 4970 } 4971 break; 4972 } 4973 #endif 4974 #ifdef TARGET_NR_truncate64 4975 case TARGET_NR_truncate64: 4976 if (!(p = lock_user_string(arg1))) 4977 goto efault; 4978 ret = target_truncate64(cpu_env, p, arg2, arg3, arg4); 4979 unlock_user(p, arg1, 0); 4980 break; 4981 #endif 4982 #ifdef TARGET_NR_ftruncate64 4983 case TARGET_NR_ftruncate64: 4984 ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4); 4985 break; 4986 #endif 4987 #ifdef TARGET_NR_stat64 4988 case TARGET_NR_stat64: 4989 if (!(p = lock_user_string(arg1))) 4990 goto efault; 4991 ret = get_errno(stat(path(p), &st)); 4992 unlock_user(p, arg1, 0); 4993 goto do_stat64; 4994 #endif 4995 #ifdef TARGET_NR_lstat64 4996 case TARGET_NR_lstat64: 4997 if (!(p = lock_user_string(arg1))) 4998 goto efault; 4999 ret = get_errno(lstat(path(p), &st)); 5000 unlock_user(p, arg1, 0); 5001 goto do_stat64; 5002 #endif 5003 #ifdef TARGET_NR_fstat64 5004 case TARGET_NR_fstat64: 5005 { 5006 ret = get_errno(fstat(arg1, &st)); 5007 do_stat64: 5008 if (!is_error(ret)) { 5009 #ifdef TARGET_ARM 5010 if (((CPUARMState *)cpu_env)->eabi) { 5011 struct target_eabi_stat64 *target_st; 5012 5013 if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0)) 5014 goto efault; 5015 memset(target_st, 0, sizeof(struct target_eabi_stat64)); 5016 __put_user(st.st_dev, &target_st->st_dev); 5017 __put_user(st.st_ino, &target_st->st_ino); 5018 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO 5019 __put_user(st.st_ino, &target_st->__st_ino); 5020 #endif 5021 __put_user(st.st_mode, &target_st->st_mode); 5022 __put_user(st.st_nlink, &target_st->st_nlink); 5023 __put_user(st.st_uid, &target_st->st_uid); 5024 __put_user(st.st_gid, &target_st->st_gid); 5025 __put_user(st.st_rdev, &target_st->st_rdev); 5026 __put_user(st.st_size, &target_st->st_size); 5027 __put_user(st.st_blksize, &target_st->st_blksize); 5028 __put_user(st.st_blocks, &target_st->st_blocks); 5029 __put_user(st.st_atime, &target_st->target_st_atime); 5030 __put_user(st.st_mtime, &target_st->target_st_mtime); 5031 __put_user(st.st_ctime, &target_st->target_st_ctime); 5032 unlock_user_struct(target_st, arg2, 1); 5033 } else 5034 #endif 5035 { 5036 struct target_stat64 *target_st; 5037 5038 if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0)) 5039 goto efault; 5040 memset(target_st, 0, sizeof(struct target_stat64)); 5041 __put_user(st.st_dev, &target_st->st_dev); 5042 __put_user(st.st_ino, &target_st->st_ino); 5043 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO 5044 __put_user(st.st_ino, &target_st->__st_ino); 5045 #endif 5046 __put_user(st.st_mode, &target_st->st_mode); 5047 __put_user(st.st_nlink, &target_st->st_nlink); 5048 __put_user(st.st_uid, &target_st->st_uid); 5049 __put_user(st.st_gid, &target_st->st_gid); 5050 __put_user(st.st_rdev, &target_st->st_rdev); 5051 /* XXX: better use of kernel struct */ 5052 __put_user(st.st_size, &target_st->st_size); 5053 __put_user(st.st_blksize, &target_st->st_blksize); 5054 __put_user(st.st_blocks, &target_st->st_blocks); 5055 __put_user(st.st_atime, &target_st->target_st_atime); 5056 __put_user(st.st_mtime, &target_st->target_st_mtime); 5057 __put_user(st.st_ctime, &target_st->target_st_ctime); 5058 unlock_user_struct(target_st, arg2, 1); 5059 } 5060 } 5061 } 5062 break; 5063 #endif 5064 #ifdef USE_UID16 5065 case TARGET_NR_lchown: 5066 if (!(p = lock_user_string(arg1))) 5067 goto efault; 5068 ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3))); 5069 unlock_user(p, arg1, 0); 5070 break; 5071 case TARGET_NR_getuid: 5072 ret = get_errno(high2lowuid(getuid())); 5073 break; 5074 case TARGET_NR_getgid: 5075 ret = get_errno(high2lowgid(getgid())); 5076 break; 5077 case TARGET_NR_geteuid: 5078 ret = get_errno(high2lowuid(geteuid())); 5079 break; 5080 case TARGET_NR_getegid: 5081 ret = get_errno(high2lowgid(getegid())); 5082 break; 5083 case TARGET_NR_setreuid: 5084 ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2))); 5085 break; 5086 case TARGET_NR_setregid: 5087 ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2))); 5088 break; 5089 case TARGET_NR_getgroups: 5090 { 5091 int gidsetsize = arg1; 5092 uint16_t *target_grouplist; 5093 gid_t *grouplist; 5094 int i; 5095 5096 grouplist = alloca(gidsetsize * sizeof(gid_t)); 5097 ret = get_errno(getgroups(gidsetsize, grouplist)); 5098 if (!is_error(ret)) { 5099 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 2, 0); 5100 if (!target_grouplist) 5101 goto efault; 5102 for(i = 0;i < gidsetsize; i++) 5103 target_grouplist[i] = tswap16(grouplist[i]); 5104 unlock_user(target_grouplist, arg2, gidsetsize * 2); 5105 } 5106 } 5107 break; 5108 case TARGET_NR_setgroups: 5109 { 5110 int gidsetsize = arg1; 5111 uint16_t *target_grouplist; 5112 gid_t *grouplist; 5113 int i; 5114 5115 grouplist = alloca(gidsetsize * sizeof(gid_t)); 5116 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 2, 1); 5117 if (!target_grouplist) { 5118 ret = -TARGET_EFAULT; 5119 goto fail; 5120 } 5121 for(i = 0;i < gidsetsize; i++) 5122 grouplist[i] = tswap16(target_grouplist[i]); 5123 unlock_user(target_grouplist, arg2, 0); 5124 ret = get_errno(setgroups(gidsetsize, grouplist)); 5125 } 5126 break; 5127 case TARGET_NR_fchown: 5128 ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3))); 5129 break; 5130 #if defined(TARGET_NR_fchownat) && defined(__NR_fchownat) 5131 case TARGET_NR_fchownat: 5132 if (!(p = lock_user_string(arg2))) 5133 goto efault; 5134 ret = get_errno(sys_fchownat(arg1, p, low2highuid(arg3), low2highgid(arg4), arg5)); 5135 unlock_user(p, arg2, 0); 5136 break; 5137 #endif 5138 #ifdef TARGET_NR_setresuid 5139 case TARGET_NR_setresuid: 5140 ret = get_errno(setresuid(low2highuid(arg1), 5141 low2highuid(arg2), 5142 low2highuid(arg3))); 5143 break; 5144 #endif 5145 #ifdef TARGET_NR_getresuid 5146 case TARGET_NR_getresuid: 5147 { 5148 uid_t ruid, euid, suid; 5149 ret = get_errno(getresuid(&ruid, &euid, &suid)); 5150 if (!is_error(ret)) { 5151 if (put_user_u16(high2lowuid(ruid), arg1) 5152 || put_user_u16(high2lowuid(euid), arg2) 5153 || put_user_u16(high2lowuid(suid), arg3)) 5154 goto efault; 5155 } 5156 } 5157 break; 5158 #endif 5159 #ifdef TARGET_NR_getresgid 5160 case TARGET_NR_setresgid: 5161 ret = get_errno(setresgid(low2highgid(arg1), 5162 low2highgid(arg2), 5163 low2highgid(arg3))); 5164 break; 5165 #endif 5166 #ifdef TARGET_NR_getresgid 5167 case TARGET_NR_getresgid: 5168 { 5169 gid_t rgid, egid, sgid; 5170 ret = get_errno(getresgid(&rgid, &egid, &sgid)); 5171 if (!is_error(ret)) { 5172 if (put_user_u16(high2lowgid(rgid), arg1) 5173 || put_user_u16(high2lowgid(egid), arg2) 5174 || put_user_u16(high2lowgid(sgid), arg3)) 5175 goto efault; 5176 } 5177 } 5178 break; 5179 #endif 5180 case TARGET_NR_chown: 5181 if (!(p = lock_user_string(arg1))) 5182 goto efault; 5183 ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3))); 5184 unlock_user(p, arg1, 0); 5185 break; 5186 case TARGET_NR_setuid: 5187 ret = get_errno(setuid(low2highuid(arg1))); 5188 break; 5189 case TARGET_NR_setgid: 5190 ret = get_errno(setgid(low2highgid(arg1))); 5191 break; 5192 case TARGET_NR_setfsuid: 5193 ret = get_errno(setfsuid(arg1)); 5194 break; 5195 case TARGET_NR_setfsgid: 5196 ret = get_errno(setfsgid(arg1)); 5197 break; 5198 #endif /* USE_UID16 */ 5199 5200 #ifdef TARGET_NR_lchown32 5201 case TARGET_NR_lchown32: 5202 if (!(p = lock_user_string(arg1))) 5203 goto efault; 5204 ret = get_errno(lchown(p, arg2, arg3)); 5205 unlock_user(p, arg1, 0); 5206 break; 5207 #endif 5208 #ifdef TARGET_NR_getuid32 5209 case TARGET_NR_getuid32: 5210 ret = get_errno(getuid()); 5211 break; 5212 #endif 5213 #ifdef TARGET_NR_getgid32 5214 case TARGET_NR_getgid32: 5215 ret = get_errno(getgid()); 5216 break; 5217 #endif 5218 #ifdef TARGET_NR_geteuid32 5219 case TARGET_NR_geteuid32: 5220 ret = get_errno(geteuid()); 5221 break; 5222 #endif 5223 #ifdef TARGET_NR_getegid32 5224 case TARGET_NR_getegid32: 5225 ret = get_errno(getegid()); 5226 break; 5227 #endif 5228 #ifdef TARGET_NR_setreuid32 5229 case TARGET_NR_setreuid32: 5230 ret = get_errno(setreuid(arg1, arg2)); 5231 break; 5232 #endif 5233 #ifdef TARGET_NR_setregid32 5234 case TARGET_NR_setregid32: 5235 ret = get_errno(setregid(arg1, arg2)); 5236 break; 5237 #endif 5238 #ifdef TARGET_NR_getgroups32 5239 case TARGET_NR_getgroups32: 5240 { 5241 int gidsetsize = arg1; 5242 uint32_t *target_grouplist; 5243 gid_t *grouplist; 5244 int i; 5245 5246 grouplist = alloca(gidsetsize * sizeof(gid_t)); 5247 ret = get_errno(getgroups(gidsetsize, grouplist)); 5248 if (!is_error(ret)) { 5249 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 4, 0); 5250 if (!target_grouplist) { 5251 ret = -TARGET_EFAULT; 5252 goto fail; 5253 } 5254 for(i = 0;i < gidsetsize; i++) 5255 target_grouplist[i] = tswap32(grouplist[i]); 5256 unlock_user(target_grouplist, arg2, gidsetsize * 4); 5257 } 5258 } 5259 break; 5260 #endif 5261 #ifdef TARGET_NR_setgroups32 5262 case TARGET_NR_setgroups32: 5263 { 5264 int gidsetsize = arg1; 5265 uint32_t *target_grouplist; 5266 gid_t *grouplist; 5267 int i; 5268 5269 grouplist = alloca(gidsetsize * sizeof(gid_t)); 5270 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 4, 1); 5271 if (!target_grouplist) { 5272 ret = -TARGET_EFAULT; 5273 goto fail; 5274 } 5275 for(i = 0;i < gidsetsize; i++) 5276 grouplist[i] = tswap32(target_grouplist[i]); 5277 unlock_user(target_grouplist, arg2, 0); 5278 ret = get_errno(setgroups(gidsetsize, grouplist)); 5279 } 5280 break; 5281 #endif 5282 #ifdef TARGET_NR_fchown32 5283 case TARGET_NR_fchown32: 5284 ret = get_errno(fchown(arg1, arg2, arg3)); 5285 break; 5286 #endif 5287 #ifdef TARGET_NR_setresuid32 5288 case TARGET_NR_setresuid32: 5289 ret = get_errno(setresuid(arg1, arg2, arg3)); 5290 break; 5291 #endif 5292 #ifdef TARGET_NR_getresuid32 5293 case TARGET_NR_getresuid32: 5294 { 5295 uid_t ruid, euid, suid; 5296 ret = get_errno(getresuid(&ruid, &euid, &suid)); 5297 if (!is_error(ret)) { 5298 if (put_user_u32(ruid, arg1) 5299 || put_user_u32(euid, arg2) 5300 || put_user_u32(suid, arg3)) 5301 goto efault; 5302 } 5303 } 5304 break; 5305 #endif 5306 #ifdef TARGET_NR_setresgid32 5307 case TARGET_NR_setresgid32: 5308 ret = get_errno(setresgid(arg1, arg2, arg3)); 5309 break; 5310 #endif 5311 #ifdef TARGET_NR_getresgid32 5312 case TARGET_NR_getresgid32: 5313 { 5314 gid_t rgid, egid, sgid; 5315 ret = get_errno(getresgid(&rgid, &egid, &sgid)); 5316 if (!is_error(ret)) { 5317 if (put_user_u32(rgid, arg1) 5318 || put_user_u32(egid, arg2) 5319 || put_user_u32(sgid, arg3)) 5320 goto efault; 5321 } 5322 } 5323 break; 5324 #endif 5325 #ifdef TARGET_NR_chown32 5326 case TARGET_NR_chown32: 5327 if (!(p = lock_user_string(arg1))) 5328 goto efault; 5329 ret = get_errno(chown(p, arg2, arg3)); 5330 unlock_user(p, arg1, 0); 5331 break; 5332 #endif 5333 #ifdef TARGET_NR_setuid32 5334 case TARGET_NR_setuid32: 5335 ret = get_errno(setuid(arg1)); 5336 break; 5337 #endif 5338 #ifdef TARGET_NR_setgid32 5339 case TARGET_NR_setgid32: 5340 ret = get_errno(setgid(arg1)); 5341 break; 5342 #endif 5343 #ifdef TARGET_NR_setfsuid32 5344 case TARGET_NR_setfsuid32: 5345 ret = get_errno(setfsuid(arg1)); 5346 break; 5347 #endif 5348 #ifdef TARGET_NR_setfsgid32 5349 case TARGET_NR_setfsgid32: 5350 ret = get_errno(setfsgid(arg1)); 5351 break; 5352 #endif 5353 5354 case TARGET_NR_pivot_root: 5355 goto unimplemented; 5356 #ifdef TARGET_NR_mincore 5357 case TARGET_NR_mincore: 5358 goto unimplemented; 5359 #endif 5360 #ifdef TARGET_NR_madvise 5361 case TARGET_NR_madvise: 5362 /* A straight passthrough may not be safe because qemu sometimes 5363 turns private flie-backed mappings into anonymous mappings. 5364 This will break MADV_DONTNEED. 5365 This is a hint, so ignoring and returning success is ok. */ 5366 ret = get_errno(0); 5367 break; 5368 #endif 5369 #if TARGET_ABI_BITS == 32 5370 case TARGET_NR_fcntl64: 5371 { 5372 int cmd; 5373 struct flock64 fl; 5374 struct target_flock64 *target_fl; 5375 #ifdef TARGET_ARM 5376 struct target_eabi_flock64 *target_efl; 5377 #endif 5378 5379 switch(arg2){ 5380 case TARGET_F_GETLK64: 5381 cmd = F_GETLK64; 5382 break; 5383 case TARGET_F_SETLK64: 5384 cmd = F_SETLK64; 5385 break; 5386 case TARGET_F_SETLKW64: 5387 cmd = F_SETLK64; 5388 break; 5389 default: 5390 cmd = arg2; 5391 break; 5392 } 5393 5394 switch(arg2) { 5395 case TARGET_F_GETLK64: 5396 #ifdef TARGET_ARM 5397 if (((CPUARMState *)cpu_env)->eabi) { 5398 if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1)) 5399 goto efault; 5400 fl.l_type = tswap16(target_efl->l_type); 5401 fl.l_whence = tswap16(target_efl->l_whence); 5402 fl.l_start = tswap64(target_efl->l_start); 5403 fl.l_len = tswap64(target_efl->l_len); 5404 fl.l_pid = tswapl(target_efl->l_pid); 5405 unlock_user_struct(target_efl, arg3, 0); 5406 } else 5407 #endif 5408 { 5409 if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1)) 5410 goto efault; 5411 fl.l_type = tswap16(target_fl->l_type); 5412 fl.l_whence = tswap16(target_fl->l_whence); 5413 fl.l_start = tswap64(target_fl->l_start); 5414 fl.l_len = tswap64(target_fl->l_len); 5415 fl.l_pid = tswapl(target_fl->l_pid); 5416 unlock_user_struct(target_fl, arg3, 0); 5417 } 5418 ret = get_errno(fcntl(arg1, cmd, &fl)); 5419 if (ret == 0) { 5420 #ifdef TARGET_ARM 5421 if (((CPUARMState *)cpu_env)->eabi) { 5422 if (!lock_user_struct(VERIFY_WRITE, target_efl, arg3, 0)) 5423 goto efault; 5424 target_efl->l_type = tswap16(fl.l_type); 5425 target_efl->l_whence = tswap16(fl.l_whence); 5426 target_efl->l_start = tswap64(fl.l_start); 5427 target_efl->l_len = tswap64(fl.l_len); 5428 target_efl->l_pid = tswapl(fl.l_pid); 5429 unlock_user_struct(target_efl, arg3, 1); 5430 } else 5431 #endif 5432 { 5433 if (!lock_user_struct(VERIFY_WRITE, target_fl, arg3, 0)) 5434 goto efault; 5435 target_fl->l_type = tswap16(fl.l_type); 5436 target_fl->l_whence = tswap16(fl.l_whence); 5437 target_fl->l_start = tswap64(fl.l_start); 5438 target_fl->l_len = tswap64(fl.l_len); 5439 target_fl->l_pid = tswapl(fl.l_pid); 5440 unlock_user_struct(target_fl, arg3, 1); 5441 } 5442 } 5443 break; 5444 5445 case TARGET_F_SETLK64: 5446 case TARGET_F_SETLKW64: 5447 #ifdef TARGET_ARM 5448 if (((CPUARMState *)cpu_env)->eabi) { 5449 if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1)) 5450 goto efault; 5451 fl.l_type = tswap16(target_efl->l_type); 5452 fl.l_whence = tswap16(target_efl->l_whence); 5453 fl.l_start = tswap64(target_efl->l_start); 5454 fl.l_len = tswap64(target_efl->l_len); 5455 fl.l_pid = tswapl(target_efl->l_pid); 5456 unlock_user_struct(target_efl, arg3, 0); 5457 } else 5458 #endif 5459 { 5460 if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1)) 5461 goto efault; 5462 fl.l_type = tswap16(target_fl->l_type); 5463 fl.l_whence = tswap16(target_fl->l_whence); 5464 fl.l_start = tswap64(target_fl->l_start); 5465 fl.l_len = tswap64(target_fl->l_len); 5466 fl.l_pid = tswapl(target_fl->l_pid); 5467 unlock_user_struct(target_fl, arg3, 0); 5468 } 5469 ret = get_errno(fcntl(arg1, cmd, &fl)); 5470 break; 5471 default: 5472 ret = do_fcntl(arg1, cmd, arg3); 5473 break; 5474 } 5475 break; 5476 } 5477 #endif 5478 #ifdef TARGET_NR_cacheflush 5479 case TARGET_NR_cacheflush: 5480 /* self-modifying code is handled automatically, so nothing needed */ 5481 ret = 0; 5482 break; 5483 #endif 5484 #ifdef TARGET_NR_security 5485 case TARGET_NR_security: 5486 goto unimplemented; 5487 #endif 5488 #ifdef TARGET_NR_getpagesize 5489 case TARGET_NR_getpagesize: 5490 ret = TARGET_PAGE_SIZE; 5491 break; 5492 #endif 5493 case TARGET_NR_gettid: 5494 ret = get_errno(gettid()); 5495 break; 5496 #ifdef TARGET_NR_readahead 5497 case TARGET_NR_readahead: 5498 goto unimplemented; 5499 #endif 5500 #ifdef TARGET_NR_setxattr 5501 case TARGET_NR_setxattr: 5502 case TARGET_NR_lsetxattr: 5503 case TARGET_NR_fsetxattr: 5504 case TARGET_NR_getxattr: 5505 case TARGET_NR_lgetxattr: 5506 case TARGET_NR_fgetxattr: 5507 case TARGET_NR_listxattr: 5508 case TARGET_NR_llistxattr: 5509 case TARGET_NR_flistxattr: 5510 case TARGET_NR_removexattr: 5511 case TARGET_NR_lremovexattr: 5512 case TARGET_NR_fremovexattr: 5513 goto unimplemented_nowarn; 5514 #endif 5515 #ifdef TARGET_NR_set_thread_area 5516 case TARGET_NR_set_thread_area: 5517 #if defined(TARGET_MIPS) 5518 ((CPUMIPSState *) cpu_env)->tls_value = arg1; 5519 ret = 0; 5520 break; 5521 #elif defined(TARGET_I386) && defined(TARGET_ABI32) 5522 ret = do_set_thread_area(cpu_env, arg1); 5523 break; 5524 #else 5525 goto unimplemented_nowarn; 5526 #endif 5527 #endif 5528 #ifdef TARGET_NR_get_thread_area 5529 case TARGET_NR_get_thread_area: 5530 #if defined(TARGET_I386) && defined(TARGET_ABI32) 5531 ret = do_get_thread_area(cpu_env, arg1); 5532 #else 5533 goto unimplemented_nowarn; 5534 #endif 5535 #endif 5536 #ifdef TARGET_NR_getdomainname 5537 case TARGET_NR_getdomainname: 5538 goto unimplemented_nowarn; 5539 #endif 5540 5541 #ifdef TARGET_NR_clock_gettime 5542 case TARGET_NR_clock_gettime: 5543 { 5544 struct timespec ts; 5545 ret = get_errno(clock_gettime(arg1, &ts)); 5546 if (!is_error(ret)) { 5547 host_to_target_timespec(arg2, &ts); 5548 } 5549 break; 5550 } 5551 #endif 5552 #ifdef TARGET_NR_clock_getres 5553 case TARGET_NR_clock_getres: 5554 { 5555 struct timespec ts; 5556 ret = get_errno(clock_getres(arg1, &ts)); 5557 if (!is_error(ret)) { 5558 host_to_target_timespec(arg2, &ts); 5559 } 5560 break; 5561 } 5562 #endif 5563 5564 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address) 5565 case TARGET_NR_set_tid_address: 5566 ret = get_errno(set_tid_address((int *)g2h(arg1))); 5567 break; 5568 #endif 5569 5570 #if defined(TARGET_NR_tkill) && defined(__NR_tkill) 5571 case TARGET_NR_tkill: 5572 ret = get_errno(sys_tkill((int)arg1, (int)arg2)); 5573 break; 5574 #endif 5575 5576 #if defined(TARGET_NR_tgkill) && defined(__NR_tgkill) 5577 case TARGET_NR_tgkill: 5578 ret = get_errno(sys_tgkill((int)arg1, (int)arg2, (int)arg3)); 5579 break; 5580 #endif 5581 5582 #ifdef TARGET_NR_set_robust_list 5583 case TARGET_NR_set_robust_list: 5584 goto unimplemented_nowarn; 5585 #endif 5586 5587 #if defined(TARGET_NR_utimensat) && defined(__NR_utimensat) 5588 case TARGET_NR_utimensat: 5589 { 5590 struct timespec ts[2]; 5591 target_to_host_timespec(ts, arg3); 5592 target_to_host_timespec(ts+1, arg3+sizeof(struct target_timespec)); 5593 if (!arg2) 5594 ret = get_errno(sys_utimensat(arg1, NULL, ts, arg4)); 5595 else { 5596 if (!(p = lock_user_string(arg2))) { 5597 ret = -TARGET_EFAULT; 5598 goto fail; 5599 } 5600 ret = get_errno(sys_utimensat(arg1, path(p), ts, arg4)); 5601 unlock_user(p, arg2, 0); 5602 } 5603 } 5604 break; 5605 #endif 5606 5607 default: 5608 unimplemented: 5609 gemu_log("qemu: Unsupported syscall: %d\n", num); 5610 #if defined(TARGET_NR_setxattr) || defined(TARGET_NR_get_thread_area) || defined(TARGET_NR_getdomainname) || defined(TARGET_NR_set_robust_list) 5611 unimplemented_nowarn: 5612 #endif 5613 ret = -TARGET_ENOSYS; 5614 break; 5615 } 5616 fail: 5617 #ifdef DEBUG 5618 gemu_log(" = %ld\n", ret); 5619 #endif 5620 if(do_strace) 5621 print_syscall_ret(num, ret); 5622 return ret; 5623 efault: 5624 ret = -TARGET_EFAULT; 5625 goto fail; 5626 } 5627