1 /* 2 * Linux syscalls 3 * 4 * Copyright (c) 2003 Fabrice Bellard 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation; either version 2 of the License, or 9 * (at your option) any later version. 10 * 11 * This program is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with this program; if not, write to the Free Software 18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 19 */ 20 #include <stdlib.h> 21 #include <stdio.h> 22 #include <stdarg.h> 23 #include <string.h> 24 #include <elf.h> 25 #include <endian.h> 26 #include <errno.h> 27 #include <unistd.h> 28 #include <fcntl.h> 29 #include <time.h> 30 #include <sys/types.h> 31 #include <sys/ipc.h> 32 #include <sys/msg.h> 33 #include <sys/wait.h> 34 #include <sys/time.h> 35 #include <sys/stat.h> 36 #include <sys/mount.h> 37 #include <sys/prctl.h> 38 #include <sys/resource.h> 39 #include <sys/mman.h> 40 #include <sys/swap.h> 41 #include <signal.h> 42 #include <sched.h> 43 #include <sys/socket.h> 44 #include <sys/uio.h> 45 #include <sys/poll.h> 46 #include <sys/times.h> 47 #include <sys/shm.h> 48 #include <sys/sem.h> 49 #include <sys/statfs.h> 50 #include <utime.h> 51 #include <sys/sysinfo.h> 52 //#include <sys/user.h> 53 #include <netinet/ip.h> 54 #include <netinet/tcp.h> 55 56 #define termios host_termios 57 #define winsize host_winsize 58 #define termio host_termio 59 #define sgttyb host_sgttyb /* same as target */ 60 #define tchars host_tchars /* same as target */ 61 #define ltchars host_ltchars /* same as target */ 62 63 #include <linux/termios.h> 64 #include <linux/unistd.h> 65 #include <linux/utsname.h> 66 #include <linux/cdrom.h> 67 #include <linux/hdreg.h> 68 #include <linux/soundcard.h> 69 #include <linux/dirent.h> 70 #include <linux/kd.h> 71 72 #include "qemu.h" 73 74 //#define DEBUG 75 76 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_SPARC) \ 77 || defined(TARGET_M68K) || defined(TARGET_SH4) || defined(TARGET_CRIS) 78 /* 16 bit uid wrappers emulation */ 79 #define USE_UID16 80 #endif 81 82 //#include <linux/msdos_fs.h> 83 #define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct dirent [2]) 84 #define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct dirent [2]) 85 86 87 #undef _syscall0 88 #undef _syscall1 89 #undef _syscall2 90 #undef _syscall3 91 #undef _syscall4 92 #undef _syscall5 93 #undef _syscall6 94 95 #define _syscall0(type,name) \ 96 type name (void) \ 97 { \ 98 return syscall(__NR_##name); \ 99 } 100 101 #define _syscall1(type,name,type1,arg1) \ 102 type name (type1 arg1) \ 103 { \ 104 return syscall(__NR_##name, arg1); \ 105 } 106 107 #define _syscall2(type,name,type1,arg1,type2,arg2) \ 108 type name (type1 arg1,type2 arg2) \ 109 { \ 110 return syscall(__NR_##name, arg1, arg2); \ 111 } 112 113 #define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \ 114 type name (type1 arg1,type2 arg2,type3 arg3) \ 115 { \ 116 return syscall(__NR_##name, arg1, arg2, arg3); \ 117 } 118 119 #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \ 120 type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4) \ 121 { \ 122 return syscall(__NR_##name, arg1, arg2, arg3, arg4); \ 123 } 124 125 #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \ 126 type5,arg5) \ 127 type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \ 128 { \ 129 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \ 130 } 131 132 133 #define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \ 134 type5,arg5,type6,arg6) \ 135 type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5,type6 arg6) \ 136 { \ 137 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \ 138 } 139 140 141 #define __NR_sys_uname __NR_uname 142 #define __NR_sys_faccessat __NR_faccessat 143 #define __NR_sys_fchmodat __NR_fchmodat 144 #define __NR_sys_fchownat __NR_fchownat 145 #define __NR_sys_getcwd1 __NR_getcwd 146 #define __NR_sys_getdents __NR_getdents 147 #define __NR_sys_getdents64 __NR_getdents64 148 #define __NR_sys_getpriority __NR_getpriority 149 #define __NR_sys_linkat __NR_linkat 150 #define __NR_sys_mkdirat __NR_mkdirat 151 #define __NR_sys_mknodat __NR_mknodat 152 #define __NR_sys_openat __NR_openat 153 #define __NR_sys_readlinkat __NR_readlinkat 154 #define __NR_sys_renameat __NR_renameat 155 #define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo 156 #define __NR_sys_symlinkat __NR_symlinkat 157 #define __NR_sys_syslog __NR_syslog 158 #define __NR_sys_tgkill __NR_tgkill 159 #define __NR_sys_tkill __NR_tkill 160 #define __NR_sys_unlinkat __NR_unlinkat 161 #define __NR_sys_utimensat __NR_utimensat 162 163 #if defined(__alpha__) || defined (__ia64__) || defined(__x86_64__) 164 #define __NR__llseek __NR_lseek 165 #endif 166 167 #ifdef __NR_gettid 168 _syscall0(int, gettid) 169 #else 170 /* This is a replacement for the host gettid() and must return a host 171 errno. */ 172 static int gettid(void) { 173 return -ENOSYS; 174 } 175 #endif 176 _syscall1(int,sys_uname,struct new_utsname *,buf) 177 #if defined(TARGET_NR_faccessat) && defined(__NR_faccessat) 178 _syscall4(int,sys_faccessat,int,dirfd,const char *,pathname,int,mode,int,flags) 179 #endif 180 #if defined(TARGET_NR_fchmodat) && defined(__NR_fchmodat) 181 _syscall4(int,sys_fchmodat,int,dirfd,const char *,pathname, 182 mode_t,mode,int,flags) 183 #endif 184 #if defined(TARGET_NR_fchownat) && defined(__NR_fchownat) 185 _syscall5(int,sys_fchownat,int,dirfd,const char *,pathname, 186 uid_t,owner,gid_t,group,int,flags) 187 #endif 188 _syscall2(int,sys_getcwd1,char *,buf,size_t,size) 189 _syscall3(int, sys_getdents, uint, fd, struct dirent *, dirp, uint, count); 190 #if defined(TARGET_NR_getdents64) && defined(__NR_getdents64) 191 _syscall3(int, sys_getdents64, uint, fd, struct dirent64 *, dirp, uint, count); 192 #endif 193 _syscall2(int, sys_getpriority, int, which, int, who); 194 _syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo, 195 loff_t *, res, uint, wh); 196 #if defined(TARGET_NR_linkat) && defined(__NR_linkat) 197 _syscall5(int,sys_linkat,int,olddirfd,const char *,oldpath, 198 int,newdirfd,const char *,newpath,int,flags) 199 #endif 200 #if defined(TARGET_NR_mkdirat) && defined(__NR_mkdirat) 201 _syscall3(int,sys_mkdirat,int,dirfd,const char *,pathname,mode_t,mode) 202 #endif 203 #if defined(TARGET_NR_mknodat) && defined(__NR_mknodat) 204 _syscall4(int,sys_mknodat,int,dirfd,const char *,pathname, 205 mode_t,mode,dev_t,dev) 206 #endif 207 #if defined(TARGET_NR_openat) && defined(__NR_openat) 208 _syscall4(int,sys_openat,int,dirfd,const char *,pathname,int,flags,mode_t,mode) 209 #endif 210 #if defined(TARGET_NR_readlinkat) && defined(__NR_readlinkat) 211 _syscall4(int,sys_readlinkat,int,dirfd,const char *,pathname, 212 char *,buf,size_t,bufsize) 213 #endif 214 #if defined(TARGET_NR_renameat) && defined(__NR_renameat) 215 _syscall4(int,sys_renameat,int,olddirfd,const char *,oldpath, 216 int,newdirfd,const char *,newpath) 217 #endif 218 _syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo) 219 #if defined(TARGET_NR_symlinkat) && defined(__NR_symlinkat) 220 _syscall3(int,sys_symlinkat,const char *,oldpath, 221 int,newdirfd,const char *,newpath) 222 #endif 223 _syscall3(int,sys_syslog,int,type,char*,bufp,int,len) 224 #if defined(TARGET_NR_tgkill) && defined(__NR_tgkill) 225 _syscall3(int,sys_tgkill,int,tgid,int,pid,int,sig) 226 #endif 227 #if defined(TARGET_NR_tkill) && defined(__NR_tkill) 228 _syscall2(int,sys_tkill,int,tid,int,sig) 229 #endif 230 #ifdef __NR_exit_group 231 _syscall1(int,exit_group,int,error_code) 232 #endif 233 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address) 234 _syscall1(int,set_tid_address,int *,tidptr) 235 #endif 236 #if defined(TARGET_NR_unlinkat) && defined(__NR_unlinkat) 237 _syscall3(int,sys_unlinkat,int,dirfd,const char *,pathname,int,flags) 238 #endif 239 #if defined(TARGET_NR_utimensat) && defined(__NR_utimensat) 240 _syscall4(int,sys_utimensat,int,dirfd,const char *,pathname, 241 const struct timespec *,tsp,int,flags) 242 #endif 243 244 extern int personality(int); 245 extern int flock(int, int); 246 extern int setfsuid(int); 247 extern int setfsgid(int); 248 extern int setresuid(uid_t, uid_t, uid_t); 249 extern int getresuid(uid_t *, uid_t *, uid_t *); 250 extern int setresgid(gid_t, gid_t, gid_t); 251 extern int getresgid(gid_t *, gid_t *, gid_t *); 252 extern int setgroups(int, gid_t *); 253 254 #define ERRNO_TABLE_SIZE 1200 255 256 /* target_to_host_errno_table[] is initialized from 257 * host_to_target_errno_table[] in syscall_init(). */ 258 static uint16_t target_to_host_errno_table[ERRNO_TABLE_SIZE] = { 259 }; 260 261 /* 262 * This list is the union of errno values overridden in asm-<arch>/errno.h 263 * minus the errnos that are not actually generic to all archs. 264 */ 265 static uint16_t host_to_target_errno_table[ERRNO_TABLE_SIZE] = { 266 [EIDRM] = TARGET_EIDRM, 267 [ECHRNG] = TARGET_ECHRNG, 268 [EL2NSYNC] = TARGET_EL2NSYNC, 269 [EL3HLT] = TARGET_EL3HLT, 270 [EL3RST] = TARGET_EL3RST, 271 [ELNRNG] = TARGET_ELNRNG, 272 [EUNATCH] = TARGET_EUNATCH, 273 [ENOCSI] = TARGET_ENOCSI, 274 [EL2HLT] = TARGET_EL2HLT, 275 [EDEADLK] = TARGET_EDEADLK, 276 [ENOLCK] = TARGET_ENOLCK, 277 [EBADE] = TARGET_EBADE, 278 [EBADR] = TARGET_EBADR, 279 [EXFULL] = TARGET_EXFULL, 280 [ENOANO] = TARGET_ENOANO, 281 [EBADRQC] = TARGET_EBADRQC, 282 [EBADSLT] = TARGET_EBADSLT, 283 [EBFONT] = TARGET_EBFONT, 284 [ENOSTR] = TARGET_ENOSTR, 285 [ENODATA] = TARGET_ENODATA, 286 [ETIME] = TARGET_ETIME, 287 [ENOSR] = TARGET_ENOSR, 288 [ENONET] = TARGET_ENONET, 289 [ENOPKG] = TARGET_ENOPKG, 290 [EREMOTE] = TARGET_EREMOTE, 291 [ENOLINK] = TARGET_ENOLINK, 292 [EADV] = TARGET_EADV, 293 [ESRMNT] = TARGET_ESRMNT, 294 [ECOMM] = TARGET_ECOMM, 295 [EPROTO] = TARGET_EPROTO, 296 [EDOTDOT] = TARGET_EDOTDOT, 297 [EMULTIHOP] = TARGET_EMULTIHOP, 298 [EBADMSG] = TARGET_EBADMSG, 299 [ENAMETOOLONG] = TARGET_ENAMETOOLONG, 300 [EOVERFLOW] = TARGET_EOVERFLOW, 301 [ENOTUNIQ] = TARGET_ENOTUNIQ, 302 [EBADFD] = TARGET_EBADFD, 303 [EREMCHG] = TARGET_EREMCHG, 304 [ELIBACC] = TARGET_ELIBACC, 305 [ELIBBAD] = TARGET_ELIBBAD, 306 [ELIBSCN] = TARGET_ELIBSCN, 307 [ELIBMAX] = TARGET_ELIBMAX, 308 [ELIBEXEC] = TARGET_ELIBEXEC, 309 [EILSEQ] = TARGET_EILSEQ, 310 [ENOSYS] = TARGET_ENOSYS, 311 [ELOOP] = TARGET_ELOOP, 312 [ERESTART] = TARGET_ERESTART, 313 [ESTRPIPE] = TARGET_ESTRPIPE, 314 [ENOTEMPTY] = TARGET_ENOTEMPTY, 315 [EUSERS] = TARGET_EUSERS, 316 [ENOTSOCK] = TARGET_ENOTSOCK, 317 [EDESTADDRREQ] = TARGET_EDESTADDRREQ, 318 [EMSGSIZE] = TARGET_EMSGSIZE, 319 [EPROTOTYPE] = TARGET_EPROTOTYPE, 320 [ENOPROTOOPT] = TARGET_ENOPROTOOPT, 321 [EPROTONOSUPPORT] = TARGET_EPROTONOSUPPORT, 322 [ESOCKTNOSUPPORT] = TARGET_ESOCKTNOSUPPORT, 323 [EOPNOTSUPP] = TARGET_EOPNOTSUPP, 324 [EPFNOSUPPORT] = TARGET_EPFNOSUPPORT, 325 [EAFNOSUPPORT] = TARGET_EAFNOSUPPORT, 326 [EADDRINUSE] = TARGET_EADDRINUSE, 327 [EADDRNOTAVAIL] = TARGET_EADDRNOTAVAIL, 328 [ENETDOWN] = TARGET_ENETDOWN, 329 [ENETUNREACH] = TARGET_ENETUNREACH, 330 [ENETRESET] = TARGET_ENETRESET, 331 [ECONNABORTED] = TARGET_ECONNABORTED, 332 [ECONNRESET] = TARGET_ECONNRESET, 333 [ENOBUFS] = TARGET_ENOBUFS, 334 [EISCONN] = TARGET_EISCONN, 335 [ENOTCONN] = TARGET_ENOTCONN, 336 [EUCLEAN] = TARGET_EUCLEAN, 337 [ENOTNAM] = TARGET_ENOTNAM, 338 [ENAVAIL] = TARGET_ENAVAIL, 339 [EISNAM] = TARGET_EISNAM, 340 [EREMOTEIO] = TARGET_EREMOTEIO, 341 [ESHUTDOWN] = TARGET_ESHUTDOWN, 342 [ETOOMANYREFS] = TARGET_ETOOMANYREFS, 343 [ETIMEDOUT] = TARGET_ETIMEDOUT, 344 [ECONNREFUSED] = TARGET_ECONNREFUSED, 345 [EHOSTDOWN] = TARGET_EHOSTDOWN, 346 [EHOSTUNREACH] = TARGET_EHOSTUNREACH, 347 [EALREADY] = TARGET_EALREADY, 348 [EINPROGRESS] = TARGET_EINPROGRESS, 349 [ESTALE] = TARGET_ESTALE, 350 [ECANCELED] = TARGET_ECANCELED, 351 [ENOMEDIUM] = TARGET_ENOMEDIUM, 352 [EMEDIUMTYPE] = TARGET_EMEDIUMTYPE, 353 #ifdef ENOKEY 354 [ENOKEY] = TARGET_ENOKEY, 355 #endif 356 #ifdef EKEYEXPIRED 357 [EKEYEXPIRED] = TARGET_EKEYEXPIRED, 358 #endif 359 #ifdef EKEYREVOKED 360 [EKEYREVOKED] = TARGET_EKEYREVOKED, 361 #endif 362 #ifdef EKEYREJECTED 363 [EKEYREJECTED] = TARGET_EKEYREJECTED, 364 #endif 365 #ifdef EOWNERDEAD 366 [EOWNERDEAD] = TARGET_EOWNERDEAD, 367 #endif 368 #ifdef ENOTRECOVERABLE 369 [ENOTRECOVERABLE] = TARGET_ENOTRECOVERABLE, 370 #endif 371 }; 372 373 static inline int host_to_target_errno(int err) 374 { 375 if(host_to_target_errno_table[err]) 376 return host_to_target_errno_table[err]; 377 return err; 378 } 379 380 static inline int target_to_host_errno(int err) 381 { 382 if (target_to_host_errno_table[err]) 383 return target_to_host_errno_table[err]; 384 return err; 385 } 386 387 static inline abi_long get_errno(abi_long ret) 388 { 389 if (ret == -1) 390 return -host_to_target_errno(errno); 391 else 392 return ret; 393 } 394 395 static inline int is_error(abi_long ret) 396 { 397 return (abi_ulong)ret >= (abi_ulong)(-4096); 398 } 399 400 char *target_strerror(int err) 401 { 402 return strerror(target_to_host_errno(err)); 403 } 404 405 static abi_ulong target_brk; 406 static abi_ulong target_original_brk; 407 408 void target_set_brk(abi_ulong new_brk) 409 { 410 target_original_brk = target_brk = HOST_PAGE_ALIGN(new_brk); 411 } 412 413 /* do_brk() must return target values and target errnos. */ 414 abi_long do_brk(abi_ulong new_brk) 415 { 416 abi_ulong brk_page; 417 abi_long mapped_addr; 418 int new_alloc_size; 419 420 if (!new_brk) 421 return target_brk; 422 if (new_brk < target_original_brk) 423 return -TARGET_ENOMEM; 424 425 brk_page = HOST_PAGE_ALIGN(target_brk); 426 427 /* If the new brk is less than this, set it and we're done... */ 428 if (new_brk < brk_page) { 429 target_brk = new_brk; 430 return target_brk; 431 } 432 433 /* We need to allocate more memory after the brk... */ 434 new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1); 435 mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size, 436 PROT_READ|PROT_WRITE, 437 MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0)); 438 if (is_error(mapped_addr)) { 439 return mapped_addr; 440 } else { 441 target_brk = new_brk; 442 return target_brk; 443 } 444 } 445 446 static inline fd_set *target_to_host_fds(fd_set *fds, 447 abi_long *target_fds, int n) 448 { 449 #if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN) 450 return (fd_set *)target_fds; 451 #else 452 int i, b; 453 if (target_fds) { 454 FD_ZERO(fds); 455 for(i = 0;i < n; i++) { 456 b = (tswapl(target_fds[i / TARGET_ABI_BITS]) >> 457 (i & (TARGET_ABI_BITS - 1))) & 1; 458 if (b) 459 FD_SET(i, fds); 460 } 461 return fds; 462 } else { 463 return NULL; 464 } 465 #endif 466 } 467 468 static inline void host_to_target_fds(abi_long *target_fds, 469 fd_set *fds, int n) 470 { 471 #if !defined(BSWAP_NEEDED) && !defined(WORDS_BIGENDIAN) 472 /* nothing to do */ 473 #else 474 int i, nw, j, k; 475 abi_long v; 476 477 if (target_fds) { 478 nw = (n + TARGET_ABI_BITS - 1) / TARGET_ABI_BITS; 479 k = 0; 480 for(i = 0;i < nw; i++) { 481 v = 0; 482 for(j = 0; j < TARGET_ABI_BITS; j++) { 483 v |= ((FD_ISSET(k, fds) != 0) << j); 484 k++; 485 } 486 target_fds[i] = tswapl(v); 487 } 488 } 489 #endif 490 } 491 492 #if defined(__alpha__) 493 #define HOST_HZ 1024 494 #else 495 #define HOST_HZ 100 496 #endif 497 498 static inline abi_long host_to_target_clock_t(long ticks) 499 { 500 #if HOST_HZ == TARGET_HZ 501 return ticks; 502 #else 503 return ((int64_t)ticks * TARGET_HZ) / HOST_HZ; 504 #endif 505 } 506 507 static inline abi_long host_to_target_rusage(abi_ulong target_addr, 508 const struct rusage *rusage) 509 { 510 struct target_rusage *target_rusage; 511 512 if (!lock_user_struct(VERIFY_WRITE, target_rusage, target_addr, 0)) 513 return -TARGET_EFAULT; 514 target_rusage->ru_utime.tv_sec = tswapl(rusage->ru_utime.tv_sec); 515 target_rusage->ru_utime.tv_usec = tswapl(rusage->ru_utime.tv_usec); 516 target_rusage->ru_stime.tv_sec = tswapl(rusage->ru_stime.tv_sec); 517 target_rusage->ru_stime.tv_usec = tswapl(rusage->ru_stime.tv_usec); 518 target_rusage->ru_maxrss = tswapl(rusage->ru_maxrss); 519 target_rusage->ru_ixrss = tswapl(rusage->ru_ixrss); 520 target_rusage->ru_idrss = tswapl(rusage->ru_idrss); 521 target_rusage->ru_isrss = tswapl(rusage->ru_isrss); 522 target_rusage->ru_minflt = tswapl(rusage->ru_minflt); 523 target_rusage->ru_majflt = tswapl(rusage->ru_majflt); 524 target_rusage->ru_nswap = tswapl(rusage->ru_nswap); 525 target_rusage->ru_inblock = tswapl(rusage->ru_inblock); 526 target_rusage->ru_oublock = tswapl(rusage->ru_oublock); 527 target_rusage->ru_msgsnd = tswapl(rusage->ru_msgsnd); 528 target_rusage->ru_msgrcv = tswapl(rusage->ru_msgrcv); 529 target_rusage->ru_nsignals = tswapl(rusage->ru_nsignals); 530 target_rusage->ru_nvcsw = tswapl(rusage->ru_nvcsw); 531 target_rusage->ru_nivcsw = tswapl(rusage->ru_nivcsw); 532 unlock_user_struct(target_rusage, target_addr, 1); 533 534 return 0; 535 } 536 537 static inline abi_long target_to_host_timeval(struct timeval *tv, 538 abi_ulong target_addr) 539 { 540 struct target_timeval *target_tv; 541 542 if (!lock_user_struct(VERIFY_READ, target_tv, target_addr, 1)) 543 return -TARGET_EFAULT; 544 tv->tv_sec = tswapl(target_tv->tv_sec); 545 tv->tv_usec = tswapl(target_tv->tv_usec); 546 unlock_user_struct(target_tv, target_addr, 0); 547 548 return 0; 549 } 550 551 static inline abi_long host_to_target_timeval(abi_ulong target_addr, 552 const struct timeval *tv) 553 { 554 struct target_timeval *target_tv; 555 556 if (!lock_user_struct(VERIFY_WRITE, target_tv, target_addr, 0)) 557 return -TARGET_EFAULT; 558 target_tv->tv_sec = tswapl(tv->tv_sec); 559 target_tv->tv_usec = tswapl(tv->tv_usec); 560 unlock_user_struct(target_tv, target_addr, 1); 561 562 return 0; 563 } 564 565 566 /* do_select() must return target values and target errnos. */ 567 static abi_long do_select(int n, 568 abi_ulong rfd_p, abi_ulong wfd_p, 569 abi_ulong efd_p, abi_ulong target_tv) 570 { 571 fd_set rfds, wfds, efds; 572 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr; 573 abi_long *target_rfds, *target_wfds, *target_efds; 574 struct timeval tv, *tv_ptr; 575 abi_long ret; 576 int ok; 577 578 if (rfd_p) { 579 target_rfds = lock_user(VERIFY_WRITE, rfd_p, sizeof(abi_long) * n, 1); 580 if (!target_rfds) { 581 ret = -TARGET_EFAULT; 582 goto end; 583 } 584 rfds_ptr = target_to_host_fds(&rfds, target_rfds, n); 585 } else { 586 target_rfds = NULL; 587 rfds_ptr = NULL; 588 } 589 if (wfd_p) { 590 target_wfds = lock_user(VERIFY_WRITE, wfd_p, sizeof(abi_long) * n, 1); 591 if (!target_wfds) { 592 ret = -TARGET_EFAULT; 593 goto end; 594 } 595 wfds_ptr = target_to_host_fds(&wfds, target_wfds, n); 596 } else { 597 target_wfds = NULL; 598 wfds_ptr = NULL; 599 } 600 if (efd_p) { 601 target_efds = lock_user(VERIFY_WRITE, efd_p, sizeof(abi_long) * n, 1); 602 if (!target_efds) { 603 ret = -TARGET_EFAULT; 604 goto end; 605 } 606 efds_ptr = target_to_host_fds(&efds, target_efds, n); 607 } else { 608 target_efds = NULL; 609 efds_ptr = NULL; 610 } 611 612 if (target_tv) { 613 target_to_host_timeval(&tv, target_tv); 614 tv_ptr = &tv; 615 } else { 616 tv_ptr = NULL; 617 } 618 ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr)); 619 ok = !is_error(ret); 620 621 if (ok) { 622 host_to_target_fds(target_rfds, rfds_ptr, n); 623 host_to_target_fds(target_wfds, wfds_ptr, n); 624 host_to_target_fds(target_efds, efds_ptr, n); 625 626 if (target_tv) { 627 host_to_target_timeval(target_tv, &tv); 628 } 629 } 630 631 end: 632 unlock_user(target_rfds, rfd_p, ok ? sizeof(abi_long) * n : 0); 633 unlock_user(target_wfds, wfd_p, ok ? sizeof(abi_long) * n : 0); 634 unlock_user(target_efds, efd_p, ok ? sizeof(abi_long) * n : 0); 635 636 return ret; 637 } 638 639 static inline abi_long target_to_host_sockaddr(struct sockaddr *addr, 640 abi_ulong target_addr, 641 socklen_t len) 642 { 643 struct target_sockaddr *target_saddr; 644 645 target_saddr = lock_user(VERIFY_READ, target_addr, len, 1); 646 if (!target_saddr) 647 return -TARGET_EFAULT; 648 memcpy(addr, target_saddr, len); 649 addr->sa_family = tswap16(target_saddr->sa_family); 650 unlock_user(target_saddr, target_addr, 0); 651 652 return 0; 653 } 654 655 static inline abi_long host_to_target_sockaddr(abi_ulong target_addr, 656 struct sockaddr *addr, 657 socklen_t len) 658 { 659 struct target_sockaddr *target_saddr; 660 661 target_saddr = lock_user(VERIFY_WRITE, target_addr, len, 0); 662 if (!target_saddr) 663 return -TARGET_EFAULT; 664 memcpy(target_saddr, addr, len); 665 target_saddr->sa_family = tswap16(addr->sa_family); 666 unlock_user(target_saddr, target_addr, len); 667 668 return 0; 669 } 670 671 /* ??? Should this also swap msgh->name? */ 672 static inline abi_long target_to_host_cmsg(struct msghdr *msgh, 673 struct target_msghdr *target_msgh) 674 { 675 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh); 676 abi_long msg_controllen; 677 abi_ulong target_cmsg_addr; 678 struct target_cmsghdr *target_cmsg; 679 socklen_t space = 0; 680 681 msg_controllen = tswapl(target_msgh->msg_controllen); 682 if (msg_controllen < sizeof (struct target_cmsghdr)) 683 goto the_end; 684 target_cmsg_addr = tswapl(target_msgh->msg_control); 685 target_cmsg = lock_user(VERIFY_READ, target_cmsg_addr, msg_controllen, 1); 686 if (!target_cmsg) 687 return -TARGET_EFAULT; 688 689 while (cmsg && target_cmsg) { 690 void *data = CMSG_DATA(cmsg); 691 void *target_data = TARGET_CMSG_DATA(target_cmsg); 692 693 int len = tswapl(target_cmsg->cmsg_len) 694 - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr)); 695 696 space += CMSG_SPACE(len); 697 if (space > msgh->msg_controllen) { 698 space -= CMSG_SPACE(len); 699 gemu_log("Host cmsg overflow\n"); 700 break; 701 } 702 703 cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level); 704 cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type); 705 cmsg->cmsg_len = CMSG_LEN(len); 706 707 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) { 708 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type); 709 memcpy(data, target_data, len); 710 } else { 711 int *fd = (int *)data; 712 int *target_fd = (int *)target_data; 713 int i, numfds = len / sizeof(int); 714 715 for (i = 0; i < numfds; i++) 716 fd[i] = tswap32(target_fd[i]); 717 } 718 719 cmsg = CMSG_NXTHDR(msgh, cmsg); 720 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg); 721 } 722 unlock_user(target_cmsg, target_cmsg_addr, 0); 723 the_end: 724 msgh->msg_controllen = space; 725 return 0; 726 } 727 728 /* ??? Should this also swap msgh->name? */ 729 static inline abi_long host_to_target_cmsg(struct target_msghdr *target_msgh, 730 struct msghdr *msgh) 731 { 732 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh); 733 abi_long msg_controllen; 734 abi_ulong target_cmsg_addr; 735 struct target_cmsghdr *target_cmsg; 736 socklen_t space = 0; 737 738 msg_controllen = tswapl(target_msgh->msg_controllen); 739 if (msg_controllen < sizeof (struct target_cmsghdr)) 740 goto the_end; 741 target_cmsg_addr = tswapl(target_msgh->msg_control); 742 target_cmsg = lock_user(VERIFY_WRITE, target_cmsg_addr, msg_controllen, 0); 743 if (!target_cmsg) 744 return -TARGET_EFAULT; 745 746 while (cmsg && target_cmsg) { 747 void *data = CMSG_DATA(cmsg); 748 void *target_data = TARGET_CMSG_DATA(target_cmsg); 749 750 int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr)); 751 752 space += TARGET_CMSG_SPACE(len); 753 if (space > msg_controllen) { 754 space -= TARGET_CMSG_SPACE(len); 755 gemu_log("Target cmsg overflow\n"); 756 break; 757 } 758 759 target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level); 760 target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type); 761 target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len)); 762 763 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) { 764 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type); 765 memcpy(target_data, data, len); 766 } else { 767 int *fd = (int *)data; 768 int *target_fd = (int *)target_data; 769 int i, numfds = len / sizeof(int); 770 771 for (i = 0; i < numfds; i++) 772 target_fd[i] = tswap32(fd[i]); 773 } 774 775 cmsg = CMSG_NXTHDR(msgh, cmsg); 776 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg); 777 } 778 unlock_user(target_cmsg, target_cmsg_addr, space); 779 the_end: 780 target_msgh->msg_controllen = tswapl(space); 781 return 0; 782 } 783 784 /* do_setsockopt() Must return target values and target errnos. */ 785 static abi_long do_setsockopt(int sockfd, int level, int optname, 786 abi_ulong optval, socklen_t optlen) 787 { 788 abi_long ret; 789 int val; 790 791 switch(level) { 792 case SOL_TCP: 793 /* TCP options all take an 'int' value. */ 794 if (optlen < sizeof(uint32_t)) 795 return -TARGET_EINVAL; 796 797 val = tget32(optval); 798 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val))); 799 break; 800 case SOL_IP: 801 switch(optname) { 802 case IP_TOS: 803 case IP_TTL: 804 case IP_HDRINCL: 805 case IP_ROUTER_ALERT: 806 case IP_RECVOPTS: 807 case IP_RETOPTS: 808 case IP_PKTINFO: 809 case IP_MTU_DISCOVER: 810 case IP_RECVERR: 811 case IP_RECVTOS: 812 #ifdef IP_FREEBIND 813 case IP_FREEBIND: 814 #endif 815 case IP_MULTICAST_TTL: 816 case IP_MULTICAST_LOOP: 817 val = 0; 818 if (optlen >= sizeof(uint32_t)) { 819 val = tget32(optval); 820 } else if (optlen >= 1) { 821 val = tget8(optval); 822 } 823 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val))); 824 break; 825 default: 826 goto unimplemented; 827 } 828 break; 829 case TARGET_SOL_SOCKET: 830 switch (optname) { 831 /* Options with 'int' argument. */ 832 case TARGET_SO_DEBUG: 833 optname = SO_DEBUG; 834 break; 835 case TARGET_SO_REUSEADDR: 836 optname = SO_REUSEADDR; 837 break; 838 case TARGET_SO_TYPE: 839 optname = SO_TYPE; 840 break; 841 case TARGET_SO_ERROR: 842 optname = SO_ERROR; 843 break; 844 case TARGET_SO_DONTROUTE: 845 optname = SO_DONTROUTE; 846 break; 847 case TARGET_SO_BROADCAST: 848 optname = SO_BROADCAST; 849 break; 850 case TARGET_SO_SNDBUF: 851 optname = SO_SNDBUF; 852 break; 853 case TARGET_SO_RCVBUF: 854 optname = SO_RCVBUF; 855 break; 856 case TARGET_SO_KEEPALIVE: 857 optname = SO_KEEPALIVE; 858 break; 859 case TARGET_SO_OOBINLINE: 860 optname = SO_OOBINLINE; 861 break; 862 case TARGET_SO_NO_CHECK: 863 optname = SO_NO_CHECK; 864 break; 865 case TARGET_SO_PRIORITY: 866 optname = SO_PRIORITY; 867 break; 868 #ifdef SO_BSDCOMPAT 869 case TARGET_SO_BSDCOMPAT: 870 optname = SO_BSDCOMPAT; 871 break; 872 #endif 873 case TARGET_SO_PASSCRED: 874 optname = SO_PASSCRED; 875 break; 876 case TARGET_SO_TIMESTAMP: 877 optname = SO_TIMESTAMP; 878 break; 879 case TARGET_SO_RCVLOWAT: 880 optname = SO_RCVLOWAT; 881 break; 882 case TARGET_SO_RCVTIMEO: 883 optname = SO_RCVTIMEO; 884 break; 885 case TARGET_SO_SNDTIMEO: 886 optname = SO_SNDTIMEO; 887 break; 888 break; 889 default: 890 goto unimplemented; 891 } 892 if (optlen < sizeof(uint32_t)) 893 return -TARGET_EINVAL; 894 895 val = tget32(optval); 896 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val))); 897 break; 898 default: 899 unimplemented: 900 gemu_log("Unsupported setsockopt level=%d optname=%d \n", level, optname); 901 ret = -TARGET_ENOSYS; 902 } 903 return ret; 904 } 905 906 /* do_getsockopt() Must return target values and target errnos. */ 907 static abi_long do_getsockopt(int sockfd, int level, int optname, 908 abi_ulong optval, abi_ulong optlen) 909 { 910 abi_long ret; 911 int len, lv, val; 912 913 switch(level) { 914 case TARGET_SOL_SOCKET: 915 level = SOL_SOCKET; 916 switch (optname) { 917 case TARGET_SO_LINGER: 918 case TARGET_SO_RCVTIMEO: 919 case TARGET_SO_SNDTIMEO: 920 case TARGET_SO_PEERCRED: 921 case TARGET_SO_PEERNAME: 922 /* These don't just return a single integer */ 923 goto unimplemented; 924 default: 925 goto int_case; 926 } 927 break; 928 case SOL_TCP: 929 /* TCP options all take an 'int' value. */ 930 int_case: 931 len = tget32(optlen); 932 if (len < 0) 933 return -TARGET_EINVAL; 934 lv = sizeof(int); 935 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv)); 936 if (ret < 0) 937 return ret; 938 val = tswap32(val); 939 if (len > lv) 940 len = lv; 941 if (len == 4) 942 tput32(optval, val); 943 else 944 tput8(optval, val); 945 tput32(optlen, len); 946 break; 947 case SOL_IP: 948 switch(optname) { 949 case IP_TOS: 950 case IP_TTL: 951 case IP_HDRINCL: 952 case IP_ROUTER_ALERT: 953 case IP_RECVOPTS: 954 case IP_RETOPTS: 955 case IP_PKTINFO: 956 case IP_MTU_DISCOVER: 957 case IP_RECVERR: 958 case IP_RECVTOS: 959 #ifdef IP_FREEBIND 960 case IP_FREEBIND: 961 #endif 962 case IP_MULTICAST_TTL: 963 case IP_MULTICAST_LOOP: 964 len = tget32(optlen); 965 if (len < 0) 966 return -TARGET_EINVAL; 967 lv = sizeof(int); 968 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv)); 969 if (ret < 0) 970 return ret; 971 if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) { 972 len = 1; 973 tput32(optlen, len); 974 tput8(optval, val); 975 } else { 976 if (len > sizeof(int)) 977 len = sizeof(int); 978 tput32(optlen, len); 979 tput32(optval, val); 980 } 981 break; 982 default: 983 goto unimplemented; 984 } 985 break; 986 default: 987 unimplemented: 988 gemu_log("getsockopt level=%d optname=%d not yet supported\n", 989 level, optname); 990 ret = -TARGET_ENOSYS; 991 break; 992 } 993 return ret; 994 } 995 996 /* FIXME 997 * lock_iovec()/unlock_iovec() have a return code of 0 for success where 998 * other lock functions have a return code of 0 for failure. 999 */ 1000 static abi_long lock_iovec(int type, struct iovec *vec, abi_ulong target_addr, 1001 int count, int copy) 1002 { 1003 struct target_iovec *target_vec; 1004 abi_ulong base; 1005 int i, j; 1006 1007 target_vec = lock_user(VERIFY_READ, target_addr, count * sizeof(struct target_iovec), 1); 1008 if (!target_vec) 1009 return -TARGET_EFAULT; 1010 for(i = 0;i < count; i++) { 1011 base = tswapl(target_vec[i].iov_base); 1012 vec[i].iov_len = tswapl(target_vec[i].iov_len); 1013 vec[i].iov_base = lock_user(type, base, vec[i].iov_len, copy); 1014 if (!vec[i].iov_base) 1015 goto fail; 1016 } 1017 unlock_user (target_vec, target_addr, 0); 1018 return 0; 1019 fail: 1020 /* failure - unwind locks */ 1021 for (j = 0; j < i; j++) { 1022 base = tswapl(target_vec[j].iov_base); 1023 unlock_user(vec[j].iov_base, base, 0); 1024 } 1025 unlock_user (target_vec, target_addr, 0); 1026 return -TARGET_EFAULT; 1027 } 1028 1029 static abi_long unlock_iovec(struct iovec *vec, abi_ulong target_addr, 1030 int count, int copy) 1031 { 1032 struct target_iovec *target_vec; 1033 abi_ulong base; 1034 int i; 1035 1036 target_vec = lock_user(VERIFY_READ, target_addr, count * sizeof(struct target_iovec), 1); 1037 if (!target_vec) 1038 return -TARGET_EFAULT; 1039 for(i = 0;i < count; i++) { 1040 base = tswapl(target_vec[i].iov_base); 1041 unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0); 1042 } 1043 unlock_user (target_vec, target_addr, 0); 1044 1045 return 0; 1046 } 1047 1048 /* do_socket() Must return target values and target errnos. */ 1049 static abi_long do_socket(int domain, int type, int protocol) 1050 { 1051 #if defined(TARGET_MIPS) 1052 switch(type) { 1053 case TARGET_SOCK_DGRAM: 1054 type = SOCK_DGRAM; 1055 break; 1056 case TARGET_SOCK_STREAM: 1057 type = SOCK_STREAM; 1058 break; 1059 case TARGET_SOCK_RAW: 1060 type = SOCK_RAW; 1061 break; 1062 case TARGET_SOCK_RDM: 1063 type = SOCK_RDM; 1064 break; 1065 case TARGET_SOCK_SEQPACKET: 1066 type = SOCK_SEQPACKET; 1067 break; 1068 case TARGET_SOCK_PACKET: 1069 type = SOCK_PACKET; 1070 break; 1071 } 1072 #endif 1073 if (domain == PF_NETLINK) 1074 return -EAFNOSUPPORT; /* do not NETLINK socket connections possible */ 1075 return get_errno(socket(domain, type, protocol)); 1076 } 1077 1078 /* do_bind() Must return target values and target errnos. */ 1079 static abi_long do_bind(int sockfd, abi_ulong target_addr, 1080 socklen_t addrlen) 1081 { 1082 void *addr = alloca(addrlen); 1083 1084 target_to_host_sockaddr(addr, target_addr, addrlen); 1085 return get_errno(bind(sockfd, addr, addrlen)); 1086 } 1087 1088 /* do_connect() Must return target values and target errnos. */ 1089 static abi_long do_connect(int sockfd, abi_ulong target_addr, 1090 socklen_t addrlen) 1091 { 1092 void *addr = alloca(addrlen); 1093 1094 target_to_host_sockaddr(addr, target_addr, addrlen); 1095 return get_errno(connect(sockfd, addr, addrlen)); 1096 } 1097 1098 /* do_sendrecvmsg() Must return target values and target errnos. */ 1099 static abi_long do_sendrecvmsg(int fd, abi_ulong target_msg, 1100 int flags, int send) 1101 { 1102 abi_long ret; 1103 struct target_msghdr *msgp; 1104 struct msghdr msg; 1105 int count; 1106 struct iovec *vec; 1107 abi_ulong target_vec; 1108 1109 /* FIXME */ 1110 if (!lock_user_struct(send ? VERIFY_READ : VERIFY_WRITE, 1111 msgp, 1112 target_msg, 1113 send ? 1 : 0)) 1114 return -TARGET_EFAULT; 1115 if (msgp->msg_name) { 1116 msg.msg_namelen = tswap32(msgp->msg_namelen); 1117 msg.msg_name = alloca(msg.msg_namelen); 1118 target_to_host_sockaddr(msg.msg_name, tswapl(msgp->msg_name), 1119 msg.msg_namelen); 1120 } else { 1121 msg.msg_name = NULL; 1122 msg.msg_namelen = 0; 1123 } 1124 msg.msg_controllen = 2 * tswapl(msgp->msg_controllen); 1125 msg.msg_control = alloca(msg.msg_controllen); 1126 msg.msg_flags = tswap32(msgp->msg_flags); 1127 1128 count = tswapl(msgp->msg_iovlen); 1129 vec = alloca(count * sizeof(struct iovec)); 1130 target_vec = tswapl(msgp->msg_iov); 1131 lock_iovec(send ? VERIFY_READ : VERIFY_WRITE, vec, target_vec, count, send); 1132 msg.msg_iovlen = count; 1133 msg.msg_iov = vec; 1134 1135 if (send) { 1136 ret = target_to_host_cmsg(&msg, msgp); 1137 if (ret == 0) 1138 ret = get_errno(sendmsg(fd, &msg, flags)); 1139 } else { 1140 ret = get_errno(recvmsg(fd, &msg, flags)); 1141 if (!is_error(ret)) 1142 ret = host_to_target_cmsg(msgp, &msg); 1143 } 1144 unlock_iovec(vec, target_vec, count, !send); 1145 unlock_user_struct(msgp, target_msg, send ? 0 : 1); 1146 return ret; 1147 } 1148 1149 /* do_accept() Must return target values and target errnos. */ 1150 static abi_long do_accept(int fd, abi_ulong target_addr, 1151 abi_ulong target_addrlen) 1152 { 1153 socklen_t addrlen = tget32(target_addrlen); 1154 void *addr = alloca(addrlen); 1155 abi_long ret; 1156 1157 ret = get_errno(accept(fd, addr, &addrlen)); 1158 if (!is_error(ret)) { 1159 host_to_target_sockaddr(target_addr, addr, addrlen); 1160 tput32(target_addrlen, addrlen); 1161 } 1162 return ret; 1163 } 1164 1165 /* do_getpeername() Must return target values and target errnos. */ 1166 static abi_long do_getpeername(int fd, abi_ulong target_addr, 1167 abi_ulong target_addrlen) 1168 { 1169 socklen_t addrlen = tget32(target_addrlen); 1170 void *addr = alloca(addrlen); 1171 abi_long ret; 1172 1173 ret = get_errno(getpeername(fd, addr, &addrlen)); 1174 if (!is_error(ret)) { 1175 host_to_target_sockaddr(target_addr, addr, addrlen); 1176 tput32(target_addrlen, addrlen); 1177 } 1178 return ret; 1179 } 1180 1181 /* do_getsockname() Must return target values and target errnos. */ 1182 static abi_long do_getsockname(int fd, abi_ulong target_addr, 1183 abi_ulong target_addrlen) 1184 { 1185 socklen_t addrlen = tget32(target_addrlen); 1186 void *addr = alloca(addrlen); 1187 abi_long ret; 1188 1189 ret = get_errno(getsockname(fd, addr, &addrlen)); 1190 if (!is_error(ret)) { 1191 host_to_target_sockaddr(target_addr, addr, addrlen); 1192 tput32(target_addrlen, addrlen); 1193 } 1194 return ret; 1195 } 1196 1197 /* do_socketpair() Must return target values and target errnos. */ 1198 static abi_long do_socketpair(int domain, int type, int protocol, 1199 abi_ulong target_tab) 1200 { 1201 int tab[2]; 1202 abi_long ret; 1203 1204 ret = get_errno(socketpair(domain, type, protocol, tab)); 1205 if (!is_error(ret)) { 1206 tput32(target_tab, tab[0]); 1207 tput32(target_tab + 4, tab[1]); 1208 } 1209 return ret; 1210 } 1211 1212 /* do_sendto() Must return target values and target errnos. */ 1213 static abi_long do_sendto(int fd, abi_ulong msg, size_t len, int flags, 1214 abi_ulong target_addr, socklen_t addrlen) 1215 { 1216 void *addr; 1217 void *host_msg; 1218 abi_long ret; 1219 1220 host_msg = lock_user(VERIFY_READ, msg, len, 1); 1221 if (!host_msg) 1222 return -TARGET_EFAULT; 1223 if (target_addr) { 1224 addr = alloca(addrlen); 1225 target_to_host_sockaddr(addr, target_addr, addrlen); 1226 ret = get_errno(sendto(fd, host_msg, len, flags, addr, addrlen)); 1227 } else { 1228 ret = get_errno(send(fd, host_msg, len, flags)); 1229 } 1230 unlock_user(host_msg, msg, 0); 1231 return ret; 1232 } 1233 1234 /* do_recvfrom() Must return target values and target errnos. */ 1235 static abi_long do_recvfrom(int fd, abi_ulong msg, size_t len, int flags, 1236 abi_ulong target_addr, 1237 abi_ulong target_addrlen) 1238 { 1239 socklen_t addrlen; 1240 void *addr; 1241 void *host_msg; 1242 abi_long ret; 1243 1244 host_msg = lock_user(VERIFY_WRITE, msg, len, 0); 1245 if (!host_msg) 1246 return -TARGET_EFAULT; 1247 if (target_addr) { 1248 addrlen = tget32(target_addrlen); 1249 addr = alloca(addrlen); 1250 ret = get_errno(recvfrom(fd, host_msg, len, flags, addr, &addrlen)); 1251 } else { 1252 addr = NULL; /* To keep compiler quiet. */ 1253 ret = get_errno(recv(fd, host_msg, len, flags)); 1254 } 1255 if (!is_error(ret)) { 1256 if (target_addr) { 1257 host_to_target_sockaddr(target_addr, addr, addrlen); 1258 tput32(target_addrlen, addrlen); 1259 } 1260 unlock_user(host_msg, msg, len); 1261 } else { 1262 unlock_user(host_msg, msg, 0); 1263 } 1264 return ret; 1265 } 1266 1267 #ifdef TARGET_NR_socketcall 1268 /* do_socketcall() Must return target values and target errnos. */ 1269 static abi_long do_socketcall(int num, abi_ulong vptr) 1270 { 1271 abi_long ret; 1272 const int n = sizeof(abi_ulong); 1273 1274 switch(num) { 1275 case SOCKOP_socket: 1276 { 1277 int domain = tgetl(vptr); 1278 int type = tgetl(vptr + n); 1279 int protocol = tgetl(vptr + 2 * n); 1280 ret = do_socket(domain, type, protocol); 1281 } 1282 break; 1283 case SOCKOP_bind: 1284 { 1285 int sockfd = tgetl(vptr); 1286 abi_ulong target_addr = tgetl(vptr + n); 1287 socklen_t addrlen = tgetl(vptr + 2 * n); 1288 ret = do_bind(sockfd, target_addr, addrlen); 1289 } 1290 break; 1291 case SOCKOP_connect: 1292 { 1293 int sockfd = tgetl(vptr); 1294 abi_ulong target_addr = tgetl(vptr + n); 1295 socklen_t addrlen = tgetl(vptr + 2 * n); 1296 ret = do_connect(sockfd, target_addr, addrlen); 1297 } 1298 break; 1299 case SOCKOP_listen: 1300 { 1301 int sockfd = tgetl(vptr); 1302 int backlog = tgetl(vptr + n); 1303 ret = get_errno(listen(sockfd, backlog)); 1304 } 1305 break; 1306 case SOCKOP_accept: 1307 { 1308 int sockfd = tgetl(vptr); 1309 abi_ulong target_addr = tgetl(vptr + n); 1310 abi_ulong target_addrlen = tgetl(vptr + 2 * n); 1311 ret = do_accept(sockfd, target_addr, target_addrlen); 1312 } 1313 break; 1314 case SOCKOP_getsockname: 1315 { 1316 int sockfd = tgetl(vptr); 1317 abi_ulong target_addr = tgetl(vptr + n); 1318 abi_ulong target_addrlen = tgetl(vptr + 2 * n); 1319 ret = do_getsockname(sockfd, target_addr, target_addrlen); 1320 } 1321 break; 1322 case SOCKOP_getpeername: 1323 { 1324 int sockfd = tgetl(vptr); 1325 abi_ulong target_addr = tgetl(vptr + n); 1326 abi_ulong target_addrlen = tgetl(vptr + 2 * n); 1327 ret = do_getpeername(sockfd, target_addr, target_addrlen); 1328 } 1329 break; 1330 case SOCKOP_socketpair: 1331 { 1332 int domain = tgetl(vptr); 1333 int type = tgetl(vptr + n); 1334 int protocol = tgetl(vptr + 2 * n); 1335 abi_ulong tab = tgetl(vptr + 3 * n); 1336 ret = do_socketpair(domain, type, protocol, tab); 1337 } 1338 break; 1339 case SOCKOP_send: 1340 { 1341 int sockfd = tgetl(vptr); 1342 abi_ulong msg = tgetl(vptr + n); 1343 size_t len = tgetl(vptr + 2 * n); 1344 int flags = tgetl(vptr + 3 * n); 1345 ret = do_sendto(sockfd, msg, len, flags, 0, 0); 1346 } 1347 break; 1348 case SOCKOP_recv: 1349 { 1350 int sockfd = tgetl(vptr); 1351 abi_ulong msg = tgetl(vptr + n); 1352 size_t len = tgetl(vptr + 2 * n); 1353 int flags = tgetl(vptr + 3 * n); 1354 ret = do_recvfrom(sockfd, msg, len, flags, 0, 0); 1355 } 1356 break; 1357 case SOCKOP_sendto: 1358 { 1359 int sockfd = tgetl(vptr); 1360 abi_ulong msg = tgetl(vptr + n); 1361 size_t len = tgetl(vptr + 2 * n); 1362 int flags = tgetl(vptr + 3 * n); 1363 abi_ulong addr = tgetl(vptr + 4 * n); 1364 socklen_t addrlen = tgetl(vptr + 5 * n); 1365 ret = do_sendto(sockfd, msg, len, flags, addr, addrlen); 1366 } 1367 break; 1368 case SOCKOP_recvfrom: 1369 { 1370 int sockfd = tgetl(vptr); 1371 abi_ulong msg = tgetl(vptr + n); 1372 size_t len = tgetl(vptr + 2 * n); 1373 int flags = tgetl(vptr + 3 * n); 1374 abi_ulong addr = tgetl(vptr + 4 * n); 1375 abi_ulong addrlen = tgetl(vptr + 5 * n); 1376 ret = do_recvfrom(sockfd, msg, len, flags, addr, addrlen); 1377 } 1378 break; 1379 case SOCKOP_shutdown: 1380 { 1381 int sockfd = tgetl(vptr); 1382 int how = tgetl(vptr + n); 1383 1384 ret = get_errno(shutdown(sockfd, how)); 1385 } 1386 break; 1387 case SOCKOP_sendmsg: 1388 case SOCKOP_recvmsg: 1389 { 1390 int fd; 1391 abi_ulong target_msg; 1392 int flags; 1393 1394 fd = tgetl(vptr); 1395 target_msg = tgetl(vptr + n); 1396 flags = tgetl(vptr + 2 * n); 1397 1398 ret = do_sendrecvmsg(fd, target_msg, flags, 1399 (num == SOCKOP_sendmsg)); 1400 } 1401 break; 1402 case SOCKOP_setsockopt: 1403 { 1404 int sockfd = tgetl(vptr); 1405 int level = tgetl(vptr + n); 1406 int optname = tgetl(vptr + 2 * n); 1407 abi_ulong optval = tgetl(vptr + 3 * n); 1408 socklen_t optlen = tgetl(vptr + 4 * n); 1409 1410 ret = do_setsockopt(sockfd, level, optname, optval, optlen); 1411 } 1412 break; 1413 case SOCKOP_getsockopt: 1414 { 1415 int sockfd = tgetl(vptr); 1416 int level = tgetl(vptr + n); 1417 int optname = tgetl(vptr + 2 * n); 1418 abi_ulong optval = tgetl(vptr + 3 * n); 1419 abi_ulong poptlen = tgetl(vptr + 4 * n); 1420 1421 ret = do_getsockopt(sockfd, level, optname, optval, poptlen); 1422 } 1423 break; 1424 default: 1425 gemu_log("Unsupported socketcall: %d\n", num); 1426 ret = -TARGET_ENOSYS; 1427 break; 1428 } 1429 return ret; 1430 } 1431 #endif 1432 1433 #ifdef TARGET_NR_ipc 1434 #define N_SHM_REGIONS 32 1435 1436 static struct shm_region { 1437 abi_ulong start; 1438 abi_ulong size; 1439 } shm_regions[N_SHM_REGIONS]; 1440 1441 struct target_ipc_perm 1442 { 1443 abi_long __key; 1444 abi_ulong uid; 1445 abi_ulong gid; 1446 abi_ulong cuid; 1447 abi_ulong cgid; 1448 unsigned short int mode; 1449 unsigned short int __pad1; 1450 unsigned short int __seq; 1451 unsigned short int __pad2; 1452 abi_ulong __unused1; 1453 abi_ulong __unused2; 1454 }; 1455 1456 struct target_semid_ds 1457 { 1458 struct target_ipc_perm sem_perm; 1459 abi_ulong sem_otime; 1460 abi_ulong __unused1; 1461 abi_ulong sem_ctime; 1462 abi_ulong __unused2; 1463 abi_ulong sem_nsems; 1464 abi_ulong __unused3; 1465 abi_ulong __unused4; 1466 }; 1467 1468 static inline abi_long target_to_host_ipc_perm(struct ipc_perm *host_ip, 1469 abi_ulong target_addr) 1470 { 1471 struct target_ipc_perm *target_ip; 1472 struct target_semid_ds *target_sd; 1473 1474 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1)) 1475 return -TARGET_EFAULT; 1476 target_ip=&(target_sd->sem_perm); 1477 host_ip->__key = tswapl(target_ip->__key); 1478 host_ip->uid = tswapl(target_ip->uid); 1479 host_ip->gid = tswapl(target_ip->gid); 1480 host_ip->cuid = tswapl(target_ip->cuid); 1481 host_ip->cgid = tswapl(target_ip->cgid); 1482 host_ip->mode = tswapl(target_ip->mode); 1483 unlock_user_struct(target_sd, target_addr, 0); 1484 return 0; 1485 } 1486 1487 static inline abi_long host_to_target_ipc_perm(abi_ulong target_addr, 1488 struct ipc_perm *host_ip) 1489 { 1490 struct target_ipc_perm *target_ip; 1491 struct target_semid_ds *target_sd; 1492 1493 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0)) 1494 return -TARGET_EFAULT; 1495 target_ip = &(target_sd->sem_perm); 1496 target_ip->__key = tswapl(host_ip->__key); 1497 target_ip->uid = tswapl(host_ip->uid); 1498 target_ip->gid = tswapl(host_ip->gid); 1499 target_ip->cuid = tswapl(host_ip->cuid); 1500 target_ip->cgid = tswapl(host_ip->cgid); 1501 target_ip->mode = tswapl(host_ip->mode); 1502 unlock_user_struct(target_sd, target_addr, 1); 1503 return 0; 1504 } 1505 1506 static inline abi_long target_to_host_semid_ds(struct semid_ds *host_sd, 1507 abi_ulong target_addr) 1508 { 1509 struct target_semid_ds *target_sd; 1510 1511 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1)) 1512 return -TARGET_EFAULT; 1513 target_to_host_ipc_perm(&(host_sd->sem_perm),target_addr); 1514 host_sd->sem_nsems = tswapl(target_sd->sem_nsems); 1515 host_sd->sem_otime = tswapl(target_sd->sem_otime); 1516 host_sd->sem_ctime = tswapl(target_sd->sem_ctime); 1517 unlock_user_struct(target_sd, target_addr, 0); 1518 return 0; 1519 } 1520 1521 static inline abi_long host_to_target_semid_ds(abi_ulong target_addr, 1522 struct semid_ds *host_sd) 1523 { 1524 struct target_semid_ds *target_sd; 1525 1526 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0)) 1527 return -TARGET_EFAULT; 1528 host_to_target_ipc_perm(target_addr,&(host_sd->sem_perm)); 1529 target_sd->sem_nsems = tswapl(host_sd->sem_nsems); 1530 target_sd->sem_otime = tswapl(host_sd->sem_otime); 1531 target_sd->sem_ctime = tswapl(host_sd->sem_ctime); 1532 unlock_user_struct(target_sd, target_addr, 1); 1533 return 0; 1534 } 1535 1536 union semun { 1537 int val; 1538 struct semid_ds *buf; 1539 unsigned short *array; 1540 }; 1541 1542 union target_semun { 1543 int val; 1544 abi_long buf; 1545 unsigned short int *array; 1546 }; 1547 1548 static inline abi_long target_to_host_semun(int cmd, 1549 union semun *host_su, 1550 abi_ulong target_addr, 1551 struct semid_ds *ds) 1552 { 1553 union target_semun *target_su; 1554 1555 switch( cmd ) { 1556 case IPC_STAT: 1557 case IPC_SET: 1558 if (!lock_user_struct(VERIFY_READ, target_su, target_addr, 1)) 1559 return -TARGET_EFAULT; 1560 target_to_host_semid_ds(ds,target_su->buf); 1561 host_su->buf = ds; 1562 unlock_user_struct(target_su, target_addr, 0); 1563 break; 1564 case GETVAL: 1565 case SETVAL: 1566 if (!lock_user_struct(VERIFY_READ, target_su, target_addr, 1)) 1567 return -TARGET_EFAULT; 1568 host_su->val = tswapl(target_su->val); 1569 unlock_user_struct(target_su, target_addr, 0); 1570 break; 1571 case GETALL: 1572 case SETALL: 1573 if (!lock_user_struct(VERIFY_READ, target_su, target_addr, 1)) 1574 return -TARGET_EFAULT; 1575 *host_su->array = tswap16(*target_su->array); 1576 unlock_user_struct(target_su, target_addr, 0); 1577 break; 1578 default: 1579 gemu_log("semun operation not fully supported: %d\n", (int)cmd); 1580 } 1581 return 0; 1582 } 1583 1584 static inline abi_long host_to_target_semun(int cmd, 1585 abi_ulong target_addr, 1586 union semun *host_su, 1587 struct semid_ds *ds) 1588 { 1589 union target_semun *target_su; 1590 1591 switch( cmd ) { 1592 case IPC_STAT: 1593 case IPC_SET: 1594 if (lock_user_struct(VERIFY_WRITE, target_su, target_addr, 0)) 1595 return -TARGET_EFAULT; 1596 host_to_target_semid_ds(target_su->buf,ds); 1597 unlock_user_struct(target_su, target_addr, 1); 1598 break; 1599 case GETVAL: 1600 case SETVAL: 1601 if (lock_user_struct(VERIFY_WRITE, target_su, target_addr, 0)) 1602 return -TARGET_EFAULT; 1603 target_su->val = tswapl(host_su->val); 1604 unlock_user_struct(target_su, target_addr, 1); 1605 break; 1606 case GETALL: 1607 case SETALL: 1608 if (lock_user_struct(VERIFY_WRITE, target_su, target_addr, 0)) 1609 return -TARGET_EFAULT; 1610 *target_su->array = tswap16(*host_su->array); 1611 unlock_user_struct(target_su, target_addr, 1); 1612 break; 1613 default: 1614 gemu_log("semun operation not fully supported: %d\n", (int)cmd); 1615 } 1616 return 0; 1617 } 1618 1619 static inline abi_long do_semctl(int first, int second, int third, 1620 abi_long ptr) 1621 { 1622 union semun arg; 1623 struct semid_ds dsarg; 1624 int cmd = third&0xff; 1625 abi_long ret = 0; 1626 1627 switch( cmd ) { 1628 case GETVAL: 1629 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1630 ret = get_errno(semctl(first, second, cmd, arg)); 1631 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1632 break; 1633 case SETVAL: 1634 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1635 ret = get_errno(semctl(first, second, cmd, arg)); 1636 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1637 break; 1638 case GETALL: 1639 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1640 ret = get_errno(semctl(first, second, cmd, arg)); 1641 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1642 break; 1643 case SETALL: 1644 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1645 ret = get_errno(semctl(first, second, cmd, arg)); 1646 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1647 break; 1648 case IPC_STAT: 1649 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1650 ret = get_errno(semctl(first, second, cmd, arg)); 1651 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1652 break; 1653 case IPC_SET: 1654 target_to_host_semun(cmd,&arg,ptr,&dsarg); 1655 ret = get_errno(semctl(first, second, cmd, arg)); 1656 host_to_target_semun(cmd,ptr,&arg,&dsarg); 1657 break; 1658 default: 1659 ret = get_errno(semctl(first, second, cmd, arg)); 1660 } 1661 1662 return ret; 1663 } 1664 1665 struct target_msqid_ds 1666 { 1667 struct target_ipc_perm msg_perm; 1668 abi_ulong msg_stime; 1669 abi_ulong __unused1; 1670 abi_ulong msg_rtime; 1671 abi_ulong __unused2; 1672 abi_ulong msg_ctime; 1673 abi_ulong __unused3; 1674 abi_ulong __msg_cbytes; 1675 abi_ulong msg_qnum; 1676 abi_ulong msg_qbytes; 1677 abi_ulong msg_lspid; 1678 abi_ulong msg_lrpid; 1679 abi_ulong __unused4; 1680 abi_ulong __unused5; 1681 }; 1682 1683 static inline abi_long target_to_host_msqid_ds(struct msqid_ds *host_md, 1684 abi_ulong target_addr) 1685 { 1686 struct target_msqid_ds *target_md; 1687 1688 if (!lock_user_struct(VERIFY_READ, target_md, target_addr, 1)) 1689 return -TARGET_EFAULT; 1690 target_to_host_ipc_perm(&(host_md->msg_perm),target_addr); 1691 host_md->msg_stime = tswapl(target_md->msg_stime); 1692 host_md->msg_rtime = tswapl(target_md->msg_rtime); 1693 host_md->msg_ctime = tswapl(target_md->msg_ctime); 1694 host_md->__msg_cbytes = tswapl(target_md->__msg_cbytes); 1695 host_md->msg_qnum = tswapl(target_md->msg_qnum); 1696 host_md->msg_qbytes = tswapl(target_md->msg_qbytes); 1697 host_md->msg_lspid = tswapl(target_md->msg_lspid); 1698 host_md->msg_lrpid = tswapl(target_md->msg_lrpid); 1699 unlock_user_struct(target_md, target_addr, 0); 1700 return 0; 1701 } 1702 1703 static inline abi_long host_to_target_msqid_ds(abi_ulong target_addr, 1704 struct msqid_ds *host_md) 1705 { 1706 struct target_msqid_ds *target_md; 1707 1708 if (!lock_user_struct(VERIFY_WRITE, target_md, target_addr, 0)) 1709 return -TARGET_EFAULT; 1710 host_to_target_ipc_perm(target_addr,&(host_md->msg_perm)); 1711 target_md->msg_stime = tswapl(host_md->msg_stime); 1712 target_md->msg_rtime = tswapl(host_md->msg_rtime); 1713 target_md->msg_ctime = tswapl(host_md->msg_ctime); 1714 target_md->__msg_cbytes = tswapl(host_md->__msg_cbytes); 1715 target_md->msg_qnum = tswapl(host_md->msg_qnum); 1716 target_md->msg_qbytes = tswapl(host_md->msg_qbytes); 1717 target_md->msg_lspid = tswapl(host_md->msg_lspid); 1718 target_md->msg_lrpid = tswapl(host_md->msg_lrpid); 1719 unlock_user_struct(target_md, target_addr, 1); 1720 return 0; 1721 } 1722 1723 static inline abi_long do_msgctl(int first, int second, abi_long ptr) 1724 { 1725 struct msqid_ds dsarg; 1726 int cmd = second&0xff; 1727 abi_long ret = 0; 1728 switch( cmd ) { 1729 case IPC_STAT: 1730 case IPC_SET: 1731 target_to_host_msqid_ds(&dsarg,ptr); 1732 ret = get_errno(msgctl(first, cmd, &dsarg)); 1733 host_to_target_msqid_ds(ptr,&dsarg); 1734 default: 1735 ret = get_errno(msgctl(first, cmd, &dsarg)); 1736 } 1737 return ret; 1738 } 1739 1740 struct target_msgbuf { 1741 abi_ulong mtype; 1742 char mtext[1]; 1743 }; 1744 1745 static inline abi_long do_msgsnd(int msqid, abi_long msgp, 1746 unsigned int msgsz, int msgflg) 1747 { 1748 struct target_msgbuf *target_mb; 1749 struct msgbuf *host_mb; 1750 abi_long ret = 0; 1751 1752 if (!lock_user_struct(VERIFY_READ, target_mb, msgp, 0)) 1753 return -TARGET_EFAULT; 1754 host_mb = malloc(msgsz+sizeof(long)); 1755 host_mb->mtype = tswapl(target_mb->mtype); 1756 memcpy(host_mb->mtext,target_mb->mtext,msgsz); 1757 ret = get_errno(msgsnd(msqid, host_mb, msgsz, msgflg)); 1758 free(host_mb); 1759 unlock_user_struct(target_mb, msgp, 0); 1760 1761 return ret; 1762 } 1763 1764 static inline abi_long do_msgrcv(int msqid, abi_long msgp, 1765 unsigned int msgsz, int msgtype, 1766 int msgflg) 1767 { 1768 struct target_msgbuf *target_mb; 1769 char *target_mtext; 1770 struct msgbuf *host_mb; 1771 abi_long ret = 0; 1772 1773 if (!lock_user_struct(VERIFY_WRITE, target_mb, msgp, 0)) 1774 return -TARGET_EFAULT; 1775 host_mb = malloc(msgsz+sizeof(long)); 1776 ret = get_errno(msgrcv(msqid, host_mb, msgsz, 1, msgflg)); 1777 if (ret > 0) { 1778 abi_ulong target_mtext_addr = msgp + sizeof(abi_ulong); 1779 target_mtext = lock_user(VERIFY_WRITE, target_mtext_addr, ret, 0); 1780 if (!target_mtext) { 1781 ret = -TARGET_EFAULT; 1782 goto end; 1783 } 1784 memcpy(target_mb->mtext, host_mb->mtext, ret); 1785 unlock_user(target_mtext, target_mtext_addr, ret); 1786 } 1787 target_mb->mtype = tswapl(host_mb->mtype); 1788 free(host_mb); 1789 1790 end: 1791 if (target_mb) 1792 unlock_user_struct(target_mb, msgp, 1); 1793 return ret; 1794 } 1795 1796 /* ??? This only works with linear mappings. */ 1797 /* do_ipc() must return target values and target errnos. */ 1798 static abi_long do_ipc(unsigned int call, int first, 1799 int second, int third, 1800 abi_long ptr, abi_long fifth) 1801 { 1802 int version; 1803 abi_long ret = 0; 1804 struct shmid_ds shm_info; 1805 int i; 1806 1807 version = call >> 16; 1808 call &= 0xffff; 1809 1810 switch (call) { 1811 case IPCOP_semop: 1812 ret = get_errno(semop(first,(struct sembuf *)g2h(ptr), second)); 1813 break; 1814 1815 case IPCOP_semget: 1816 ret = get_errno(semget(first, second, third)); 1817 break; 1818 1819 case IPCOP_semctl: 1820 ret = do_semctl(first, second, third, ptr); 1821 break; 1822 1823 case IPCOP_semtimedop: 1824 gemu_log("Unsupported ipc call: %d (version %d)\n", call, version); 1825 ret = -TARGET_ENOSYS; 1826 break; 1827 1828 case IPCOP_msgget: 1829 ret = get_errno(msgget(first, second)); 1830 break; 1831 1832 case IPCOP_msgsnd: 1833 ret = do_msgsnd(first, ptr, second, third); 1834 break; 1835 1836 case IPCOP_msgctl: 1837 ret = do_msgctl(first, second, ptr); 1838 break; 1839 1840 case IPCOP_msgrcv: 1841 { 1842 /* XXX: this code is not correct */ 1843 struct ipc_kludge 1844 { 1845 void *__unbounded msgp; 1846 long int msgtyp; 1847 }; 1848 1849 struct ipc_kludge *foo = (struct ipc_kludge *)g2h(ptr); 1850 struct msgbuf *msgp = (struct msgbuf *) foo->msgp; 1851 1852 ret = do_msgrcv(first, (long)msgp, second, 0, third); 1853 1854 } 1855 break; 1856 1857 case IPCOP_shmat: 1858 { 1859 abi_ulong raddr; 1860 void *host_addr; 1861 /* SHM_* flags are the same on all linux platforms */ 1862 host_addr = shmat(first, (void *)g2h(ptr), second); 1863 if (host_addr == (void *)-1) { 1864 ret = get_errno((long)host_addr); 1865 break; 1866 } 1867 raddr = h2g((unsigned long)host_addr); 1868 /* find out the length of the shared memory segment */ 1869 1870 ret = get_errno(shmctl(first, IPC_STAT, &shm_info)); 1871 if (is_error(ret)) { 1872 /* can't get length, bail out */ 1873 shmdt(host_addr); 1874 break; 1875 } 1876 page_set_flags(raddr, raddr + shm_info.shm_segsz, 1877 PAGE_VALID | PAGE_READ | 1878 ((second & SHM_RDONLY)? 0: PAGE_WRITE)); 1879 for (i = 0; i < N_SHM_REGIONS; ++i) { 1880 if (shm_regions[i].start == 0) { 1881 shm_regions[i].start = raddr; 1882 shm_regions[i].size = shm_info.shm_segsz; 1883 break; 1884 } 1885 } 1886 if (put_user(raddr, third, abi_ulong)) 1887 return -TARGET_EFAULT; 1888 ret = 0; 1889 } 1890 break; 1891 case IPCOP_shmdt: 1892 for (i = 0; i < N_SHM_REGIONS; ++i) { 1893 if (shm_regions[i].start == ptr) { 1894 shm_regions[i].start = 0; 1895 page_set_flags(ptr, shm_regions[i].size, 0); 1896 break; 1897 } 1898 } 1899 ret = get_errno(shmdt((void *)g2h(ptr))); 1900 break; 1901 1902 case IPCOP_shmget: 1903 /* IPC_* flag values are the same on all linux platforms */ 1904 ret = get_errno(shmget(first, second, third)); 1905 break; 1906 1907 /* IPC_* and SHM_* command values are the same on all linux platforms */ 1908 case IPCOP_shmctl: 1909 switch(second) { 1910 case IPC_RMID: 1911 case SHM_LOCK: 1912 case SHM_UNLOCK: 1913 ret = get_errno(shmctl(first, second, NULL)); 1914 break; 1915 default: 1916 goto unimplemented; 1917 } 1918 break; 1919 default: 1920 unimplemented: 1921 gemu_log("Unsupported ipc call: %d (version %d)\n", call, version); 1922 ret = -TARGET_ENOSYS; 1923 break; 1924 } 1925 return ret; 1926 } 1927 #endif 1928 1929 /* kernel structure types definitions */ 1930 #define IFNAMSIZ 16 1931 1932 #define STRUCT(name, list...) STRUCT_ ## name, 1933 #define STRUCT_SPECIAL(name) STRUCT_ ## name, 1934 enum { 1935 #include "syscall_types.h" 1936 }; 1937 #undef STRUCT 1938 #undef STRUCT_SPECIAL 1939 1940 #define STRUCT(name, list...) const argtype struct_ ## name ## _def[] = { list, TYPE_NULL }; 1941 #define STRUCT_SPECIAL(name) 1942 #include "syscall_types.h" 1943 #undef STRUCT 1944 #undef STRUCT_SPECIAL 1945 1946 typedef struct IOCTLEntry { 1947 unsigned int target_cmd; 1948 unsigned int host_cmd; 1949 const char *name; 1950 int access; 1951 const argtype arg_type[5]; 1952 } IOCTLEntry; 1953 1954 #define IOC_R 0x0001 1955 #define IOC_W 0x0002 1956 #define IOC_RW (IOC_R | IOC_W) 1957 1958 #define MAX_STRUCT_SIZE 4096 1959 1960 IOCTLEntry ioctl_entries[] = { 1961 #define IOCTL(cmd, access, types...) \ 1962 { TARGET_ ## cmd, cmd, #cmd, access, { types } }, 1963 #include "ioctls.h" 1964 { 0, 0, }, 1965 }; 1966 1967 /* ??? Implement proper locking for ioctls. */ 1968 /* do_ioctl() Must return target values and target errnos. */ 1969 static abi_long do_ioctl(int fd, abi_long cmd, abi_long arg) 1970 { 1971 const IOCTLEntry *ie; 1972 const argtype *arg_type; 1973 abi_long ret; 1974 uint8_t buf_temp[MAX_STRUCT_SIZE]; 1975 int target_size; 1976 void *argptr; 1977 1978 ie = ioctl_entries; 1979 for(;;) { 1980 if (ie->target_cmd == 0) { 1981 gemu_log("Unsupported ioctl: cmd=0x%04lx\n", (long)cmd); 1982 return -TARGET_ENOSYS; 1983 } 1984 if (ie->target_cmd == cmd) 1985 break; 1986 ie++; 1987 } 1988 arg_type = ie->arg_type; 1989 #if defined(DEBUG) 1990 gemu_log("ioctl: cmd=0x%04lx (%s)\n", (long)cmd, ie->name); 1991 #endif 1992 switch(arg_type[0]) { 1993 case TYPE_NULL: 1994 /* no argument */ 1995 ret = get_errno(ioctl(fd, ie->host_cmd)); 1996 break; 1997 case TYPE_PTRVOID: 1998 case TYPE_INT: 1999 /* int argment */ 2000 ret = get_errno(ioctl(fd, ie->host_cmd, arg)); 2001 break; 2002 case TYPE_PTR: 2003 arg_type++; 2004 target_size = thunk_type_size(arg_type, 0); 2005 switch(ie->access) { 2006 case IOC_R: 2007 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 2008 if (!is_error(ret)) { 2009 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0); 2010 if (!argptr) 2011 return -TARGET_EFAULT; 2012 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET); 2013 unlock_user(argptr, arg, target_size); 2014 } 2015 break; 2016 case IOC_W: 2017 argptr = lock_user(VERIFY_READ, arg, target_size, 1); 2018 if (!argptr) 2019 return -TARGET_EFAULT; 2020 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST); 2021 unlock_user(argptr, arg, 0); 2022 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 2023 break; 2024 default: 2025 case IOC_RW: 2026 argptr = lock_user(VERIFY_READ, arg, target_size, 1); 2027 if (!argptr) 2028 return -TARGET_EFAULT; 2029 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST); 2030 unlock_user(argptr, arg, 0); 2031 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 2032 if (!is_error(ret)) { 2033 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0); 2034 if (!argptr) 2035 return -TARGET_EFAULT; 2036 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET); 2037 unlock_user(argptr, arg, target_size); 2038 } 2039 break; 2040 } 2041 break; 2042 default: 2043 gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n", 2044 (long)cmd, arg_type[0]); 2045 ret = -TARGET_ENOSYS; 2046 break; 2047 } 2048 return ret; 2049 } 2050 2051 bitmask_transtbl iflag_tbl[] = { 2052 { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK }, 2053 { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT }, 2054 { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR }, 2055 { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK }, 2056 { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK }, 2057 { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP }, 2058 { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR }, 2059 { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR }, 2060 { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL }, 2061 { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC }, 2062 { TARGET_IXON, TARGET_IXON, IXON, IXON }, 2063 { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY }, 2064 { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF }, 2065 { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL }, 2066 { 0, 0, 0, 0 } 2067 }; 2068 2069 bitmask_transtbl oflag_tbl[] = { 2070 { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST }, 2071 { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC }, 2072 { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR }, 2073 { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL }, 2074 { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR }, 2075 { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET }, 2076 { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL }, 2077 { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL }, 2078 { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 }, 2079 { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 }, 2080 { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 }, 2081 { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 }, 2082 { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 }, 2083 { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 }, 2084 { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 }, 2085 { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 }, 2086 { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 }, 2087 { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 }, 2088 { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 }, 2089 { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 }, 2090 { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 }, 2091 { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 }, 2092 { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 }, 2093 { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 }, 2094 { 0, 0, 0, 0 } 2095 }; 2096 2097 bitmask_transtbl cflag_tbl[] = { 2098 { TARGET_CBAUD, TARGET_B0, CBAUD, B0 }, 2099 { TARGET_CBAUD, TARGET_B50, CBAUD, B50 }, 2100 { TARGET_CBAUD, TARGET_B75, CBAUD, B75 }, 2101 { TARGET_CBAUD, TARGET_B110, CBAUD, B110 }, 2102 { TARGET_CBAUD, TARGET_B134, CBAUD, B134 }, 2103 { TARGET_CBAUD, TARGET_B150, CBAUD, B150 }, 2104 { TARGET_CBAUD, TARGET_B200, CBAUD, B200 }, 2105 { TARGET_CBAUD, TARGET_B300, CBAUD, B300 }, 2106 { TARGET_CBAUD, TARGET_B600, CBAUD, B600 }, 2107 { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 }, 2108 { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 }, 2109 { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 }, 2110 { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 }, 2111 { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 }, 2112 { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 }, 2113 { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 }, 2114 { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 }, 2115 { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 }, 2116 { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 }, 2117 { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 }, 2118 { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 }, 2119 { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 }, 2120 { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 }, 2121 { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 }, 2122 { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB }, 2123 { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD }, 2124 { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB }, 2125 { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD }, 2126 { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL }, 2127 { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL }, 2128 { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS }, 2129 { 0, 0, 0, 0 } 2130 }; 2131 2132 bitmask_transtbl lflag_tbl[] = { 2133 { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG }, 2134 { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON }, 2135 { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE }, 2136 { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO }, 2137 { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE }, 2138 { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK }, 2139 { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL }, 2140 { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH }, 2141 { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP }, 2142 { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL }, 2143 { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT }, 2144 { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE }, 2145 { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO }, 2146 { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN }, 2147 { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN }, 2148 { 0, 0, 0, 0 } 2149 }; 2150 2151 static void target_to_host_termios (void *dst, const void *src) 2152 { 2153 struct host_termios *host = dst; 2154 const struct target_termios *target = src; 2155 2156 host->c_iflag = 2157 target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl); 2158 host->c_oflag = 2159 target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl); 2160 host->c_cflag = 2161 target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl); 2162 host->c_lflag = 2163 target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl); 2164 host->c_line = target->c_line; 2165 2166 host->c_cc[VINTR] = target->c_cc[TARGET_VINTR]; 2167 host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT]; 2168 host->c_cc[VERASE] = target->c_cc[TARGET_VERASE]; 2169 host->c_cc[VKILL] = target->c_cc[TARGET_VKILL]; 2170 host->c_cc[VEOF] = target->c_cc[TARGET_VEOF]; 2171 host->c_cc[VTIME] = target->c_cc[TARGET_VTIME]; 2172 host->c_cc[VMIN] = target->c_cc[TARGET_VMIN]; 2173 host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC]; 2174 host->c_cc[VSTART] = target->c_cc[TARGET_VSTART]; 2175 host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP]; 2176 host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP]; 2177 host->c_cc[VEOL] = target->c_cc[TARGET_VEOL]; 2178 host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT]; 2179 host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD]; 2180 host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE]; 2181 host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT]; 2182 host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2]; 2183 } 2184 2185 static void host_to_target_termios (void *dst, const void *src) 2186 { 2187 struct target_termios *target = dst; 2188 const struct host_termios *host = src; 2189 2190 target->c_iflag = 2191 tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl)); 2192 target->c_oflag = 2193 tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl)); 2194 target->c_cflag = 2195 tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl)); 2196 target->c_lflag = 2197 tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl)); 2198 target->c_line = host->c_line; 2199 2200 target->c_cc[TARGET_VINTR] = host->c_cc[VINTR]; 2201 target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT]; 2202 target->c_cc[TARGET_VERASE] = host->c_cc[VERASE]; 2203 target->c_cc[TARGET_VKILL] = host->c_cc[VKILL]; 2204 target->c_cc[TARGET_VEOF] = host->c_cc[VEOF]; 2205 target->c_cc[TARGET_VTIME] = host->c_cc[VTIME]; 2206 target->c_cc[TARGET_VMIN] = host->c_cc[VMIN]; 2207 target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC]; 2208 target->c_cc[TARGET_VSTART] = host->c_cc[VSTART]; 2209 target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP]; 2210 target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP]; 2211 target->c_cc[TARGET_VEOL] = host->c_cc[VEOL]; 2212 target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT]; 2213 target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD]; 2214 target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE]; 2215 target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT]; 2216 target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2]; 2217 } 2218 2219 StructEntry struct_termios_def = { 2220 .convert = { host_to_target_termios, target_to_host_termios }, 2221 .size = { sizeof(struct target_termios), sizeof(struct host_termios) }, 2222 .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) }, 2223 }; 2224 2225 static bitmask_transtbl mmap_flags_tbl[] = { 2226 { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED }, 2227 { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE }, 2228 { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED }, 2229 { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS }, 2230 { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN }, 2231 { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE }, 2232 { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE }, 2233 { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED }, 2234 { 0, 0, 0, 0 } 2235 }; 2236 2237 static bitmask_transtbl fcntl_flags_tbl[] = { 2238 { TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, }, 2239 { TARGET_O_ACCMODE, TARGET_O_RDWR, O_ACCMODE, O_RDWR, }, 2240 { TARGET_O_CREAT, TARGET_O_CREAT, O_CREAT, O_CREAT, }, 2241 { TARGET_O_EXCL, TARGET_O_EXCL, O_EXCL, O_EXCL, }, 2242 { TARGET_O_NOCTTY, TARGET_O_NOCTTY, O_NOCTTY, O_NOCTTY, }, 2243 { TARGET_O_TRUNC, TARGET_O_TRUNC, O_TRUNC, O_TRUNC, }, 2244 { TARGET_O_APPEND, TARGET_O_APPEND, O_APPEND, O_APPEND, }, 2245 { TARGET_O_NONBLOCK, TARGET_O_NONBLOCK, O_NONBLOCK, O_NONBLOCK, }, 2246 { TARGET_O_SYNC, TARGET_O_SYNC, O_SYNC, O_SYNC, }, 2247 { TARGET_FASYNC, TARGET_FASYNC, FASYNC, FASYNC, }, 2248 { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, }, 2249 { TARGET_O_NOFOLLOW, TARGET_O_NOFOLLOW, O_NOFOLLOW, O_NOFOLLOW, }, 2250 { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, }, 2251 #if defined(O_DIRECT) 2252 { TARGET_O_DIRECT, TARGET_O_DIRECT, O_DIRECT, O_DIRECT, }, 2253 #endif 2254 { 0, 0, 0, 0 } 2255 }; 2256 2257 #if defined(TARGET_I386) 2258 2259 /* NOTE: there is really one LDT for all the threads */ 2260 uint8_t *ldt_table; 2261 2262 static abi_long read_ldt(abi_ulong ptr, unsigned long bytecount) 2263 { 2264 int size; 2265 void *p; 2266 2267 if (!ldt_table) 2268 return 0; 2269 size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE; 2270 if (size > bytecount) 2271 size = bytecount; 2272 p = lock_user(VERIFY_WRITE, ptr, size, 0); 2273 if (!p) 2274 return -TARGET_EFAULT; 2275 /* ??? Should this by byteswapped? */ 2276 memcpy(p, ldt_table, size); 2277 unlock_user(p, ptr, size); 2278 return size; 2279 } 2280 2281 /* XXX: add locking support */ 2282 static abi_long write_ldt(CPUX86State *env, 2283 abi_ulong ptr, unsigned long bytecount, int oldmode) 2284 { 2285 struct target_modify_ldt_ldt_s ldt_info; 2286 struct target_modify_ldt_ldt_s *target_ldt_info; 2287 int seg_32bit, contents, read_exec_only, limit_in_pages; 2288 int seg_not_present, useable; 2289 uint32_t *lp, entry_1, entry_2; 2290 2291 if (bytecount != sizeof(ldt_info)) 2292 return -TARGET_EINVAL; 2293 if (!lock_user_struct(VERIFY_READ, target_ldt_info, ptr, 1)) 2294 return -TARGET_EFAULT; 2295 ldt_info.entry_number = tswap32(target_ldt_info->entry_number); 2296 ldt_info.base_addr = tswapl(target_ldt_info->base_addr); 2297 ldt_info.limit = tswap32(target_ldt_info->limit); 2298 ldt_info.flags = tswap32(target_ldt_info->flags); 2299 unlock_user_struct(target_ldt_info, ptr, 0); 2300 2301 if (ldt_info.entry_number >= TARGET_LDT_ENTRIES) 2302 return -TARGET_EINVAL; 2303 seg_32bit = ldt_info.flags & 1; 2304 contents = (ldt_info.flags >> 1) & 3; 2305 read_exec_only = (ldt_info.flags >> 3) & 1; 2306 limit_in_pages = (ldt_info.flags >> 4) & 1; 2307 seg_not_present = (ldt_info.flags >> 5) & 1; 2308 useable = (ldt_info.flags >> 6) & 1; 2309 2310 if (contents == 3) { 2311 if (oldmode) 2312 return -TARGET_EINVAL; 2313 if (seg_not_present == 0) 2314 return -TARGET_EINVAL; 2315 } 2316 /* allocate the LDT */ 2317 if (!ldt_table) { 2318 ldt_table = malloc(TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE); 2319 if (!ldt_table) 2320 return -TARGET_ENOMEM; 2321 memset(ldt_table, 0, TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE); 2322 env->ldt.base = h2g((unsigned long)ldt_table); 2323 env->ldt.limit = 0xffff; 2324 } 2325 2326 /* NOTE: same code as Linux kernel */ 2327 /* Allow LDTs to be cleared by the user. */ 2328 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) { 2329 if (oldmode || 2330 (contents == 0 && 2331 read_exec_only == 1 && 2332 seg_32bit == 0 && 2333 limit_in_pages == 0 && 2334 seg_not_present == 1 && 2335 useable == 0 )) { 2336 entry_1 = 0; 2337 entry_2 = 0; 2338 goto install; 2339 } 2340 } 2341 2342 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) | 2343 (ldt_info.limit & 0x0ffff); 2344 entry_2 = (ldt_info.base_addr & 0xff000000) | 2345 ((ldt_info.base_addr & 0x00ff0000) >> 16) | 2346 (ldt_info.limit & 0xf0000) | 2347 ((read_exec_only ^ 1) << 9) | 2348 (contents << 10) | 2349 ((seg_not_present ^ 1) << 15) | 2350 (seg_32bit << 22) | 2351 (limit_in_pages << 23) | 2352 0x7000; 2353 if (!oldmode) 2354 entry_2 |= (useable << 20); 2355 2356 /* Install the new entry ... */ 2357 install: 2358 lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3)); 2359 lp[0] = tswap32(entry_1); 2360 lp[1] = tswap32(entry_2); 2361 return 0; 2362 } 2363 2364 /* specific and weird i386 syscalls */ 2365 abi_long do_modify_ldt(CPUX86State *env, int func, abi_ulong ptr, 2366 unsigned long bytecount) 2367 { 2368 abi_long ret; 2369 2370 switch (func) { 2371 case 0: 2372 ret = read_ldt(ptr, bytecount); 2373 break; 2374 case 1: 2375 ret = write_ldt(env, ptr, bytecount, 1); 2376 break; 2377 case 0x11: 2378 ret = write_ldt(env, ptr, bytecount, 0); 2379 break; 2380 default: 2381 ret = -TARGET_ENOSYS; 2382 break; 2383 } 2384 return ret; 2385 } 2386 2387 #endif /* defined(TARGET_I386) */ 2388 2389 /* this stack is the equivalent of the kernel stack associated with a 2390 thread/process */ 2391 #define NEW_STACK_SIZE 8192 2392 2393 static int clone_func(void *arg) 2394 { 2395 CPUState *env = arg; 2396 cpu_loop(env); 2397 /* never exits */ 2398 return 0; 2399 } 2400 2401 /* do_fork() Must return host values and target errnos (unlike most 2402 do_*() functions). */ 2403 int do_fork(CPUState *env, unsigned int flags, abi_ulong newsp) 2404 { 2405 int ret; 2406 TaskState *ts; 2407 uint8_t *new_stack; 2408 CPUState *new_env; 2409 2410 if (flags & CLONE_VM) { 2411 ts = malloc(sizeof(TaskState) + NEW_STACK_SIZE); 2412 memset(ts, 0, sizeof(TaskState)); 2413 new_stack = ts->stack; 2414 ts->used = 1; 2415 /* add in task state list */ 2416 ts->next = first_task_state; 2417 first_task_state = ts; 2418 /* we create a new CPU instance. */ 2419 new_env = cpu_copy(env); 2420 #if defined(TARGET_I386) 2421 if (!newsp) 2422 newsp = env->regs[R_ESP]; 2423 new_env->regs[R_ESP] = newsp; 2424 new_env->regs[R_EAX] = 0; 2425 #elif defined(TARGET_ARM) 2426 if (!newsp) 2427 newsp = env->regs[13]; 2428 new_env->regs[13] = newsp; 2429 new_env->regs[0] = 0; 2430 #elif defined(TARGET_SPARC) 2431 if (!newsp) 2432 newsp = env->regwptr[22]; 2433 new_env->regwptr[22] = newsp; 2434 new_env->regwptr[0] = 0; 2435 /* XXXXX */ 2436 printf ("HELPME: %s:%d\n", __FILE__, __LINE__); 2437 #elif defined(TARGET_M68K) 2438 if (!newsp) 2439 newsp = env->aregs[7]; 2440 new_env->aregs[7] = newsp; 2441 new_env->dregs[0] = 0; 2442 /* ??? is this sufficient? */ 2443 #elif defined(TARGET_MIPS) 2444 if (!newsp) 2445 newsp = env->gpr[29][env->current_tc]; 2446 new_env->gpr[29][env->current_tc] = newsp; 2447 #elif defined(TARGET_PPC) 2448 if (!newsp) 2449 newsp = env->gpr[1]; 2450 new_env->gpr[1] = newsp; 2451 { 2452 int i; 2453 for (i = 7; i < 32; i++) 2454 new_env->gpr[i] = 0; 2455 } 2456 #elif defined(TARGET_SH4) 2457 if (!newsp) 2458 newsp = env->gregs[15]; 2459 new_env->gregs[15] = newsp; 2460 /* XXXXX */ 2461 #elif defined(TARGET_ALPHA) 2462 if (!newsp) 2463 newsp = env->ir[30]; 2464 new_env->ir[30] = newsp; 2465 /* ? */ 2466 { 2467 int i; 2468 for (i = 7; i < 30; i++) 2469 new_env->ir[i] = 0; 2470 } 2471 #elif defined(TARGET_CRIS) 2472 if (!newsp) 2473 newsp = env->regs[14]; 2474 new_env->regs[14] = newsp; 2475 #else 2476 #error unsupported target CPU 2477 #endif 2478 new_env->opaque = ts; 2479 #ifdef __ia64__ 2480 ret = __clone2(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env); 2481 #else 2482 ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env); 2483 #endif 2484 } else { 2485 /* if no CLONE_VM, we consider it is a fork */ 2486 if ((flags & ~CSIGNAL) != 0) 2487 return -EINVAL; 2488 ret = fork(); 2489 } 2490 return ret; 2491 } 2492 2493 static abi_long do_fcntl(int fd, int cmd, abi_ulong arg) 2494 { 2495 struct flock fl; 2496 struct target_flock *target_fl; 2497 struct flock64 fl64; 2498 struct target_flock64 *target_fl64; 2499 abi_long ret; 2500 2501 switch(cmd) { 2502 case TARGET_F_GETLK: 2503 if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1)) 2504 return -TARGET_EFAULT; 2505 fl.l_type = tswap16(target_fl->l_type); 2506 fl.l_whence = tswap16(target_fl->l_whence); 2507 fl.l_start = tswapl(target_fl->l_start); 2508 fl.l_len = tswapl(target_fl->l_len); 2509 fl.l_pid = tswapl(target_fl->l_pid); 2510 unlock_user_struct(target_fl, arg, 0); 2511 ret = get_errno(fcntl(fd, cmd, &fl)); 2512 if (ret == 0) { 2513 if (!lock_user_struct(VERIFY_WRITE, target_fl, arg, 0)) 2514 return -TARGET_EFAULT; 2515 target_fl->l_type = tswap16(fl.l_type); 2516 target_fl->l_whence = tswap16(fl.l_whence); 2517 target_fl->l_start = tswapl(fl.l_start); 2518 target_fl->l_len = tswapl(fl.l_len); 2519 target_fl->l_pid = tswapl(fl.l_pid); 2520 unlock_user_struct(target_fl, arg, 1); 2521 } 2522 break; 2523 2524 case TARGET_F_SETLK: 2525 case TARGET_F_SETLKW: 2526 if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1)) 2527 return -TARGET_EFAULT; 2528 fl.l_type = tswap16(target_fl->l_type); 2529 fl.l_whence = tswap16(target_fl->l_whence); 2530 fl.l_start = tswapl(target_fl->l_start); 2531 fl.l_len = tswapl(target_fl->l_len); 2532 fl.l_pid = tswapl(target_fl->l_pid); 2533 unlock_user_struct(target_fl, arg, 0); 2534 ret = get_errno(fcntl(fd, cmd, &fl)); 2535 break; 2536 2537 case TARGET_F_GETLK64: 2538 if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1)) 2539 return -TARGET_EFAULT; 2540 fl64.l_type = tswap16(target_fl64->l_type) >> 1; 2541 fl64.l_whence = tswap16(target_fl64->l_whence); 2542 fl64.l_start = tswapl(target_fl64->l_start); 2543 fl64.l_len = tswapl(target_fl64->l_len); 2544 fl64.l_pid = tswap16(target_fl64->l_pid); 2545 unlock_user_struct(target_fl64, arg, 0); 2546 ret = get_errno(fcntl(fd, cmd >> 1, &fl64)); 2547 if (ret == 0) { 2548 if (!lock_user_struct(VERIFY_WRITE, target_fl64, arg, 0)) 2549 return -TARGET_EFAULT; 2550 target_fl64->l_type = tswap16(fl64.l_type) >> 1; 2551 target_fl64->l_whence = tswap16(fl64.l_whence); 2552 target_fl64->l_start = tswapl(fl64.l_start); 2553 target_fl64->l_len = tswapl(fl64.l_len); 2554 target_fl64->l_pid = tswapl(fl64.l_pid); 2555 unlock_user_struct(target_fl64, arg, 1); 2556 } 2557 break; 2558 case TARGET_F_SETLK64: 2559 case TARGET_F_SETLKW64: 2560 if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1)) 2561 return -TARGET_EFAULT; 2562 fl64.l_type = tswap16(target_fl64->l_type) >> 1; 2563 fl64.l_whence = tswap16(target_fl64->l_whence); 2564 fl64.l_start = tswapl(target_fl64->l_start); 2565 fl64.l_len = tswapl(target_fl64->l_len); 2566 fl64.l_pid = tswap16(target_fl64->l_pid); 2567 unlock_user_struct(target_fl64, arg, 0); 2568 ret = get_errno(fcntl(fd, cmd >> 1, &fl64)); 2569 break; 2570 2571 case F_GETFL: 2572 ret = get_errno(fcntl(fd, cmd, arg)); 2573 if (ret >= 0) { 2574 ret = host_to_target_bitmask(ret, fcntl_flags_tbl); 2575 } 2576 break; 2577 2578 case F_SETFL: 2579 ret = get_errno(fcntl(fd, cmd, target_to_host_bitmask(arg, fcntl_flags_tbl))); 2580 break; 2581 2582 default: 2583 ret = get_errno(fcntl(fd, cmd, arg)); 2584 break; 2585 } 2586 return ret; 2587 } 2588 2589 #ifdef USE_UID16 2590 2591 static inline int high2lowuid(int uid) 2592 { 2593 if (uid > 65535) 2594 return 65534; 2595 else 2596 return uid; 2597 } 2598 2599 static inline int high2lowgid(int gid) 2600 { 2601 if (gid > 65535) 2602 return 65534; 2603 else 2604 return gid; 2605 } 2606 2607 static inline int low2highuid(int uid) 2608 { 2609 if ((int16_t)uid == -1) 2610 return -1; 2611 else 2612 return uid; 2613 } 2614 2615 static inline int low2highgid(int gid) 2616 { 2617 if ((int16_t)gid == -1) 2618 return -1; 2619 else 2620 return gid; 2621 } 2622 2623 #endif /* USE_UID16 */ 2624 2625 void syscall_init(void) 2626 { 2627 IOCTLEntry *ie; 2628 const argtype *arg_type; 2629 int size; 2630 int i; 2631 2632 #define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def); 2633 #define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def); 2634 #include "syscall_types.h" 2635 #undef STRUCT 2636 #undef STRUCT_SPECIAL 2637 2638 /* we patch the ioctl size if necessary. We rely on the fact that 2639 no ioctl has all the bits at '1' in the size field */ 2640 ie = ioctl_entries; 2641 while (ie->target_cmd != 0) { 2642 if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) == 2643 TARGET_IOC_SIZEMASK) { 2644 arg_type = ie->arg_type; 2645 if (arg_type[0] != TYPE_PTR) { 2646 fprintf(stderr, "cannot patch size for ioctl 0x%x\n", 2647 ie->target_cmd); 2648 exit(1); 2649 } 2650 arg_type++; 2651 size = thunk_type_size(arg_type, 0); 2652 ie->target_cmd = (ie->target_cmd & 2653 ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) | 2654 (size << TARGET_IOC_SIZESHIFT); 2655 } 2656 2657 /* Build target_to_host_errno_table[] table from 2658 * host_to_target_errno_table[]. */ 2659 for (i=0; i < ERRNO_TABLE_SIZE; i++) 2660 target_to_host_errno_table[host_to_target_errno_table[i]] = i; 2661 2662 /* automatic consistency check if same arch */ 2663 #if defined(__i386__) && defined(TARGET_I386) 2664 if (ie->target_cmd != ie->host_cmd) { 2665 fprintf(stderr, "ERROR: ioctl: target=0x%x host=0x%x\n", 2666 ie->target_cmd, ie->host_cmd); 2667 } 2668 #endif 2669 ie++; 2670 } 2671 } 2672 2673 #if TARGET_ABI_BITS == 32 2674 static inline uint64_t target_offset64(uint32_t word0, uint32_t word1) 2675 { 2676 #ifdef TARGET_WORDS_BIG_ENDIAN 2677 return ((uint64_t)word0 << 32) | word1; 2678 #else 2679 return ((uint64_t)word1 << 32) | word0; 2680 #endif 2681 } 2682 #else /* TARGET_ABI_BITS == 32 */ 2683 static inline uint64_t target_offset64(uint64_t word0, uint64_t word1) 2684 { 2685 return word0; 2686 } 2687 #endif /* TARGET_ABI_BITS != 32 */ 2688 2689 #ifdef TARGET_NR_truncate64 2690 static inline abi_long target_truncate64(void *cpu_env, const char *arg1, 2691 abi_long arg2, 2692 abi_long arg3, 2693 abi_long arg4) 2694 { 2695 #ifdef TARGET_ARM 2696 if (((CPUARMState *)cpu_env)->eabi) 2697 { 2698 arg2 = arg3; 2699 arg3 = arg4; 2700 } 2701 #endif 2702 return get_errno(truncate64(arg1, target_offset64(arg2, arg3))); 2703 } 2704 #endif 2705 2706 #ifdef TARGET_NR_ftruncate64 2707 static inline abi_long target_ftruncate64(void *cpu_env, abi_long arg1, 2708 abi_long arg2, 2709 abi_long arg3, 2710 abi_long arg4) 2711 { 2712 #ifdef TARGET_ARM 2713 if (((CPUARMState *)cpu_env)->eabi) 2714 { 2715 arg2 = arg3; 2716 arg3 = arg4; 2717 } 2718 #endif 2719 return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3))); 2720 } 2721 #endif 2722 2723 static inline abi_long target_to_host_timespec(struct timespec *host_ts, 2724 abi_ulong target_addr) 2725 { 2726 struct target_timespec *target_ts; 2727 2728 if (!lock_user_struct(VERIFY_READ, target_ts, target_addr, 1)) 2729 return -TARGET_EFAULT; 2730 host_ts->tv_sec = tswapl(target_ts->tv_sec); 2731 host_ts->tv_nsec = tswapl(target_ts->tv_nsec); 2732 unlock_user_struct(target_ts, target_addr, 0); 2733 } 2734 2735 static inline abi_long host_to_target_timespec(abi_ulong target_addr, 2736 struct timespec *host_ts) 2737 { 2738 struct target_timespec *target_ts; 2739 2740 if (!lock_user_struct(VERIFY_WRITE, target_ts, target_addr, 0)) 2741 return -TARGET_EFAULT; 2742 target_ts->tv_sec = tswapl(host_ts->tv_sec); 2743 target_ts->tv_nsec = tswapl(host_ts->tv_nsec); 2744 unlock_user_struct(target_ts, target_addr, 1); 2745 } 2746 2747 /* do_syscall() should always have a single exit point at the end so 2748 that actions, such as logging of syscall results, can be performed. 2749 All errnos that do_syscall() returns must be -TARGET_<errcode>. */ 2750 abi_long do_syscall(void *cpu_env, int num, abi_long arg1, 2751 abi_long arg2, abi_long arg3, abi_long arg4, 2752 abi_long arg5, abi_long arg6) 2753 { 2754 abi_long ret; 2755 struct stat st; 2756 struct statfs stfs; 2757 void *p; 2758 2759 #ifdef DEBUG 2760 gemu_log("syscall %d", num); 2761 #endif 2762 if(do_strace) 2763 print_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6); 2764 2765 switch(num) { 2766 case TARGET_NR_exit: 2767 #ifdef HAVE_GPROF 2768 _mcleanup(); 2769 #endif 2770 gdb_exit(cpu_env, arg1); 2771 /* XXX: should free thread stack and CPU env */ 2772 _exit(arg1); 2773 ret = 0; /* avoid warning */ 2774 break; 2775 case TARGET_NR_read: 2776 page_unprotect_range(arg2, arg3); 2777 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0))) 2778 goto efault; 2779 ret = get_errno(read(arg1, p, arg3)); 2780 unlock_user(p, arg2, ret); 2781 break; 2782 case TARGET_NR_write: 2783 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1))) 2784 goto efault; 2785 ret = get_errno(write(arg1, p, arg3)); 2786 unlock_user(p, arg2, 0); 2787 break; 2788 case TARGET_NR_open: 2789 if (!(p = lock_user_string(arg1))) { 2790 return -TARGET_EFAULT; 2791 goto fail; 2792 } 2793 ret = get_errno(open(path(p), 2794 target_to_host_bitmask(arg2, fcntl_flags_tbl), 2795 arg3)); 2796 unlock_user(p, arg1, 0); 2797 break; 2798 #if defined(TARGET_NR_openat) && defined(__NR_openat) 2799 case TARGET_NR_openat: 2800 if (!(p = lock_user_string(arg2))) 2801 goto efault; 2802 ret = get_errno(sys_openat(arg1, 2803 path(p), 2804 target_to_host_bitmask(arg3, fcntl_flags_tbl), 2805 arg4)); 2806 unlock_user(p, arg2, 0); 2807 break; 2808 #endif 2809 case TARGET_NR_close: 2810 ret = get_errno(close(arg1)); 2811 break; 2812 case TARGET_NR_brk: 2813 ret = do_brk(arg1); 2814 break; 2815 case TARGET_NR_fork: 2816 ret = get_errno(do_fork(cpu_env, SIGCHLD, 0)); 2817 break; 2818 #ifdef TARGET_NR_waitpid 2819 case TARGET_NR_waitpid: 2820 { 2821 int status; 2822 ret = get_errno(waitpid(arg1, &status, arg3)); 2823 if (!is_error(ret) && arg2) 2824 tput32(arg2, status); 2825 } 2826 break; 2827 #endif 2828 #ifdef TARGET_NR_creat /* not on alpha */ 2829 case TARGET_NR_creat: 2830 if (!(p = lock_user_string(arg1))) 2831 goto efault; 2832 ret = get_errno(creat(p, arg2)); 2833 unlock_user(p, arg1, 0); 2834 break; 2835 #endif 2836 case TARGET_NR_link: 2837 { 2838 void * p2; 2839 p = lock_user_string(arg1); 2840 p2 = lock_user_string(arg2); 2841 if (!p || !p2) 2842 ret = -TARGET_EFAULT; 2843 else 2844 ret = get_errno(link(p, p2)); 2845 unlock_user(p2, arg2, 0); 2846 unlock_user(p, arg1, 0); 2847 } 2848 break; 2849 #if defined(TARGET_NR_linkat) && defined(__NR_linkat) 2850 case TARGET_NR_linkat: 2851 { 2852 void * p2 = NULL; 2853 if (!arg2 || !arg4) 2854 goto efault; 2855 p = lock_user_string(arg2); 2856 p2 = lock_user_string(arg4); 2857 if (!p || !p2) 2858 ret = -TARGET_EFAULT; 2859 else 2860 ret = get_errno(sys_linkat(arg1, p, arg3, p2, arg5)); 2861 unlock_user(p, arg2, 0); 2862 unlock_user(p2, arg4, 0); 2863 } 2864 break; 2865 #endif 2866 case TARGET_NR_unlink: 2867 if (!(p = lock_user_string(arg1))) 2868 goto efault; 2869 ret = get_errno(unlink(p)); 2870 unlock_user(p, arg1, 0); 2871 break; 2872 #if defined(TARGET_NR_unlinkat) && defined(__NR_unlinkat) 2873 case TARGET_NR_unlinkat: 2874 if (!(p = lock_user_string(arg2))) 2875 goto efault; 2876 ret = get_errno(sys_unlinkat(arg1, p, arg3)); 2877 unlock_user(p, arg2, 0); 2878 #endif 2879 case TARGET_NR_execve: 2880 { 2881 char **argp, **envp; 2882 int argc, envc; 2883 abi_ulong gp; 2884 abi_ulong guest_argp; 2885 abi_ulong guest_envp; 2886 abi_ulong addr; 2887 char **q; 2888 2889 argc = 0; 2890 guest_argp = arg2; 2891 for (gp = guest_argp; tgetl(gp); gp++) 2892 argc++; 2893 envc = 0; 2894 guest_envp = arg3; 2895 for (gp = guest_envp; tgetl(gp); gp++) 2896 envc++; 2897 2898 argp = alloca((argc + 1) * sizeof(void *)); 2899 envp = alloca((envc + 1) * sizeof(void *)); 2900 2901 for (gp = guest_argp, q = argp; ; 2902 gp += sizeof(abi_ulong), q++) { 2903 addr = tgetl(gp); 2904 if (!addr) 2905 break; 2906 if (!(*q = lock_user_string(addr))) { 2907 ret = -TARGET_EFAULT; 2908 goto execve_fail; 2909 } 2910 } 2911 *q = NULL; 2912 2913 for (gp = guest_envp, q = envp; ; 2914 gp += sizeof(abi_ulong), q++) { 2915 addr = tgetl(gp); 2916 if (!addr) 2917 break; 2918 if (!(*q = lock_user_string(addr))) { 2919 ret = -TARGET_EFAULT; 2920 goto execve_fail; 2921 } 2922 } 2923 *q = NULL; 2924 2925 if (!(p = lock_user_string(arg1))) { 2926 ret = -TARGET_EFAULT; 2927 goto execve_fail; 2928 } 2929 ret = get_errno(execve(p, argp, envp)); 2930 unlock_user(p, arg1, 0); 2931 2932 execve_fail: 2933 for (gp = guest_argp, q = argp; *q; 2934 gp += sizeof(abi_ulong), q++) { 2935 addr = tgetl(gp); 2936 unlock_user(*q, addr, 0); 2937 } 2938 for (gp = guest_envp, q = envp; *q; 2939 gp += sizeof(abi_ulong), q++) { 2940 addr = tgetl(gp); 2941 unlock_user(*q, addr, 0); 2942 } 2943 } 2944 break; 2945 case TARGET_NR_chdir: 2946 if (!(p = lock_user_string(arg1))) 2947 goto efault; 2948 ret = get_errno(chdir(p)); 2949 unlock_user(p, arg1, 0); 2950 break; 2951 #ifdef TARGET_NR_time 2952 case TARGET_NR_time: 2953 { 2954 time_t host_time; 2955 ret = get_errno(time(&host_time)); 2956 if (!is_error(ret) && arg1) 2957 tputl(arg1, host_time); 2958 } 2959 break; 2960 #endif 2961 case TARGET_NR_mknod: 2962 if (!(p = lock_user_string(arg1))) 2963 goto efault; 2964 ret = get_errno(mknod(p, arg2, arg3)); 2965 unlock_user(p, arg1, 0); 2966 break; 2967 #if defined(TARGET_NR_mknodat) && defined(__NR_mknodat) 2968 case TARGET_NR_mknodat: 2969 if (!(p = lock_user_string(arg2))) 2970 goto efault; 2971 ret = get_errno(sys_mknodat(arg1, p, arg3, arg4)); 2972 unlock_user(p, arg2, 0); 2973 break; 2974 #endif 2975 case TARGET_NR_chmod: 2976 if (!(p = lock_user_string(arg1))) 2977 goto efault; 2978 ret = get_errno(chmod(p, arg2)); 2979 unlock_user(p, arg1, 0); 2980 break; 2981 #ifdef TARGET_NR_break 2982 case TARGET_NR_break: 2983 goto unimplemented; 2984 #endif 2985 #ifdef TARGET_NR_oldstat 2986 case TARGET_NR_oldstat: 2987 goto unimplemented; 2988 #endif 2989 case TARGET_NR_lseek: 2990 ret = get_errno(lseek(arg1, arg2, arg3)); 2991 break; 2992 #ifdef TARGET_NR_getxpid 2993 case TARGET_NR_getxpid: 2994 #else 2995 case TARGET_NR_getpid: 2996 #endif 2997 ret = get_errno(getpid()); 2998 break; 2999 case TARGET_NR_mount: 3000 { 3001 /* need to look at the data field */ 3002 void *p2, *p3; 3003 p = lock_user_string(arg1); 3004 p2 = lock_user_string(arg2); 3005 p3 = lock_user_string(arg3); 3006 if (!p || !p2 || !p3) 3007 ret = -TARGET_EFAULT; 3008 else 3009 /* FIXME - arg5 should be locked, but it isn't clear how to 3010 * do that since it's not guaranteed to be a NULL-terminated 3011 * string. 3012 */ 3013 ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, g2h(arg5))); 3014 unlock_user(p, arg1, 0); 3015 unlock_user(p2, arg2, 0); 3016 unlock_user(p3, arg3, 0); 3017 break; 3018 } 3019 #ifdef TARGET_NR_umount 3020 case TARGET_NR_umount: 3021 if (!(p = lock_user_string(arg1))) 3022 goto efault; 3023 ret = get_errno(umount(p)); 3024 unlock_user(p, arg1, 0); 3025 break; 3026 #endif 3027 #ifdef TARGET_NR_stime /* not on alpha */ 3028 case TARGET_NR_stime: 3029 { 3030 time_t host_time; 3031 host_time = tgetl(arg1); 3032 ret = get_errno(stime(&host_time)); 3033 } 3034 break; 3035 #endif 3036 case TARGET_NR_ptrace: 3037 goto unimplemented; 3038 #ifdef TARGET_NR_alarm /* not on alpha */ 3039 case TARGET_NR_alarm: 3040 ret = alarm(arg1); 3041 break; 3042 #endif 3043 #ifdef TARGET_NR_oldfstat 3044 case TARGET_NR_oldfstat: 3045 goto unimplemented; 3046 #endif 3047 #ifdef TARGET_NR_pause /* not on alpha */ 3048 case TARGET_NR_pause: 3049 ret = get_errno(pause()); 3050 break; 3051 #endif 3052 #ifdef TARGET_NR_utime 3053 case TARGET_NR_utime: 3054 { 3055 struct utimbuf tbuf, *host_tbuf; 3056 struct target_utimbuf *target_tbuf; 3057 if (arg2) { 3058 if (!lock_user_struct(VERIFY_READ, target_tbuf, arg2, 1)) 3059 goto efault; 3060 tbuf.actime = tswapl(target_tbuf->actime); 3061 tbuf.modtime = tswapl(target_tbuf->modtime); 3062 unlock_user_struct(target_tbuf, arg2, 0); 3063 host_tbuf = &tbuf; 3064 } else { 3065 host_tbuf = NULL; 3066 } 3067 if (!(p = lock_user_string(arg1))) 3068 goto efault; 3069 ret = get_errno(utime(p, host_tbuf)); 3070 unlock_user(p, arg1, 0); 3071 } 3072 break; 3073 #endif 3074 case TARGET_NR_utimes: 3075 { 3076 struct timeval *tvp, tv[2]; 3077 if (arg2) { 3078 target_to_host_timeval(&tv[0], arg2); 3079 target_to_host_timeval(&tv[1], 3080 arg2 + sizeof (struct target_timeval)); 3081 tvp = tv; 3082 } else { 3083 tvp = NULL; 3084 } 3085 if (!(p = lock_user_string(arg1))) 3086 goto efault; 3087 ret = get_errno(utimes(p, tvp)); 3088 unlock_user(p, arg1, 0); 3089 } 3090 break; 3091 #ifdef TARGET_NR_stty 3092 case TARGET_NR_stty: 3093 goto unimplemented; 3094 #endif 3095 #ifdef TARGET_NR_gtty 3096 case TARGET_NR_gtty: 3097 goto unimplemented; 3098 #endif 3099 case TARGET_NR_access: 3100 if (!(p = lock_user_string(arg1))) 3101 goto efault; 3102 ret = get_errno(access(p, arg2)); 3103 unlock_user(p, arg1, 0); 3104 break; 3105 #if defined(TARGET_NR_faccessat) && defined(__NR_faccessat) 3106 case TARGET_NR_faccessat: 3107 if (!(p = lock_user_string(arg2))) 3108 goto efault; 3109 ret = get_errno(sys_faccessat(arg1, p, arg3, arg4)); 3110 unlock_user(p, arg2, 0); 3111 break; 3112 #endif 3113 #ifdef TARGET_NR_nice /* not on alpha */ 3114 case TARGET_NR_nice: 3115 ret = get_errno(nice(arg1)); 3116 break; 3117 #endif 3118 #ifdef TARGET_NR_ftime 3119 case TARGET_NR_ftime: 3120 goto unimplemented; 3121 #endif 3122 case TARGET_NR_sync: 3123 sync(); 3124 ret = 0; 3125 break; 3126 case TARGET_NR_kill: 3127 ret = get_errno(kill(arg1, arg2)); 3128 break; 3129 case TARGET_NR_rename: 3130 { 3131 void *p2; 3132 p = lock_user_string(arg1); 3133 p2 = lock_user_string(arg2); 3134 if (!p || !p2) 3135 ret = -TARGET_EFAULT; 3136 else 3137 ret = get_errno(rename(p, p2)); 3138 unlock_user(p2, arg2, 0); 3139 unlock_user(p, arg1, 0); 3140 } 3141 break; 3142 #if defined(TARGET_NR_renameat) && defined(__NR_renameat) 3143 case TARGET_NR_renameat: 3144 { 3145 void *p2; 3146 p = lock_user_string(arg2); 3147 p2 = lock_user_string(arg4); 3148 if (!p || !p2) 3149 ret = -TARGET_EFAULT; 3150 else 3151 ret = get_errno(sys_renameat(arg1, p, arg3, p2)); 3152 unlock_user(p2, arg4, 0); 3153 unlock_user(p, arg2, 0); 3154 } 3155 break; 3156 #endif 3157 case TARGET_NR_mkdir: 3158 if (!(p = lock_user_string(arg1))) 3159 goto efault; 3160 ret = get_errno(mkdir(p, arg2)); 3161 unlock_user(p, arg1, 0); 3162 break; 3163 #if defined(TARGET_NR_mkdirat) && defined(__NR_mkdirat) 3164 case TARGET_NR_mkdirat: 3165 if (!(p = lock_user_string(arg2))) 3166 goto efault; 3167 ret = get_errno(sys_mkdirat(arg1, p, arg3)); 3168 unlock_user(p, arg2, 0); 3169 break; 3170 #endif 3171 case TARGET_NR_rmdir: 3172 if (!(p = lock_user_string(arg1))) 3173 goto efault; 3174 ret = get_errno(rmdir(p)); 3175 unlock_user(p, arg1, 0); 3176 break; 3177 case TARGET_NR_dup: 3178 ret = get_errno(dup(arg1)); 3179 break; 3180 case TARGET_NR_pipe: 3181 { 3182 int host_pipe[2]; 3183 ret = get_errno(pipe(host_pipe)); 3184 if (!is_error(ret)) { 3185 #if defined(TARGET_MIPS) 3186 CPUMIPSState *env = (CPUMIPSState*)cpu_env; 3187 env->gpr[3][env->current_tc] = host_pipe[1]; 3188 ret = host_pipe[0]; 3189 #else 3190 tput32(arg1, host_pipe[0]); 3191 tput32(arg1 + 4, host_pipe[1]); 3192 #endif 3193 } 3194 } 3195 break; 3196 case TARGET_NR_times: 3197 { 3198 struct target_tms *tmsp; 3199 struct tms tms; 3200 ret = get_errno(times(&tms)); 3201 if (arg1) { 3202 tmsp = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_tms), 0); 3203 if (!tmsp) 3204 goto efault; 3205 tmsp->tms_utime = tswapl(host_to_target_clock_t(tms.tms_utime)); 3206 tmsp->tms_stime = tswapl(host_to_target_clock_t(tms.tms_stime)); 3207 tmsp->tms_cutime = tswapl(host_to_target_clock_t(tms.tms_cutime)); 3208 tmsp->tms_cstime = tswapl(host_to_target_clock_t(tms.tms_cstime)); 3209 } 3210 if (!is_error(ret)) 3211 ret = host_to_target_clock_t(ret); 3212 } 3213 break; 3214 #ifdef TARGET_NR_prof 3215 case TARGET_NR_prof: 3216 goto unimplemented; 3217 #endif 3218 #ifdef TARGET_NR_signal 3219 case TARGET_NR_signal: 3220 goto unimplemented; 3221 #endif 3222 case TARGET_NR_acct: 3223 if (!(p = lock_user_string(arg1))) 3224 goto efault; 3225 ret = get_errno(acct(path(p))); 3226 unlock_user(p, arg1, 0); 3227 break; 3228 #ifdef TARGET_NR_umount2 /* not on alpha */ 3229 case TARGET_NR_umount2: 3230 if (!(p = lock_user_string(arg1))) 3231 goto efault; 3232 ret = get_errno(umount2(p, arg2)); 3233 unlock_user(p, arg1, 0); 3234 break; 3235 #endif 3236 #ifdef TARGET_NR_lock 3237 case TARGET_NR_lock: 3238 goto unimplemented; 3239 #endif 3240 case TARGET_NR_ioctl: 3241 ret = do_ioctl(arg1, arg2, arg3); 3242 break; 3243 case TARGET_NR_fcntl: 3244 ret = do_fcntl(arg1, arg2, arg3); 3245 break; 3246 #ifdef TARGET_NR_mpx 3247 case TARGET_NR_mpx: 3248 goto unimplemented; 3249 #endif 3250 case TARGET_NR_setpgid: 3251 ret = get_errno(setpgid(arg1, arg2)); 3252 break; 3253 #ifdef TARGET_NR_ulimit 3254 case TARGET_NR_ulimit: 3255 goto unimplemented; 3256 #endif 3257 #ifdef TARGET_NR_oldolduname 3258 case TARGET_NR_oldolduname: 3259 goto unimplemented; 3260 #endif 3261 case TARGET_NR_umask: 3262 ret = get_errno(umask(arg1)); 3263 break; 3264 case TARGET_NR_chroot: 3265 if (!(p = lock_user_string(arg1))) 3266 goto efault; 3267 ret = get_errno(chroot(p)); 3268 unlock_user(p, arg1, 0); 3269 break; 3270 case TARGET_NR_ustat: 3271 goto unimplemented; 3272 case TARGET_NR_dup2: 3273 ret = get_errno(dup2(arg1, arg2)); 3274 break; 3275 #ifdef TARGET_NR_getppid /* not on alpha */ 3276 case TARGET_NR_getppid: 3277 ret = get_errno(getppid()); 3278 break; 3279 #endif 3280 case TARGET_NR_getpgrp: 3281 ret = get_errno(getpgrp()); 3282 break; 3283 case TARGET_NR_setsid: 3284 ret = get_errno(setsid()); 3285 break; 3286 #ifdef TARGET_NR_sigaction 3287 case TARGET_NR_sigaction: 3288 { 3289 #if !defined(TARGET_MIPS) 3290 struct target_old_sigaction *old_act; 3291 struct target_sigaction act, oact, *pact; 3292 if (arg2) { 3293 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1)) 3294 goto efault; 3295 act._sa_handler = old_act->_sa_handler; 3296 target_siginitset(&act.sa_mask, old_act->sa_mask); 3297 act.sa_flags = old_act->sa_flags; 3298 act.sa_restorer = old_act->sa_restorer; 3299 unlock_user_struct(old_act, arg2, 0); 3300 pact = &act; 3301 } else { 3302 pact = NULL; 3303 } 3304 ret = get_errno(do_sigaction(arg1, pact, &oact)); 3305 if (!is_error(ret) && arg3) { 3306 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0)) 3307 goto efault; 3308 old_act->_sa_handler = oact._sa_handler; 3309 old_act->sa_mask = oact.sa_mask.sig[0]; 3310 old_act->sa_flags = oact.sa_flags; 3311 old_act->sa_restorer = oact.sa_restorer; 3312 unlock_user_struct(old_act, arg3, 1); 3313 } 3314 #else 3315 struct target_sigaction act, oact, *pact, *old_act; 3316 3317 if (arg2) { 3318 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1)) 3319 goto efault; 3320 act._sa_handler = old_act->_sa_handler; 3321 target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]); 3322 act.sa_flags = old_act->sa_flags; 3323 unlock_user_struct(old_act, arg2, 0); 3324 pact = &act; 3325 } else { 3326 pact = NULL; 3327 } 3328 3329 ret = get_errno(do_sigaction(arg1, pact, &oact)); 3330 3331 if (!is_error(ret) && arg3) { 3332 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0)) 3333 goto efault; 3334 old_act->_sa_handler = oact._sa_handler; 3335 old_act->sa_flags = oact.sa_flags; 3336 old_act->sa_mask.sig[0] = oact.sa_mask.sig[0]; 3337 old_act->sa_mask.sig[1] = 0; 3338 old_act->sa_mask.sig[2] = 0; 3339 old_act->sa_mask.sig[3] = 0; 3340 unlock_user_struct(old_act, arg3, 1); 3341 } 3342 #endif 3343 } 3344 break; 3345 #endif 3346 case TARGET_NR_rt_sigaction: 3347 { 3348 struct target_sigaction *act; 3349 struct target_sigaction *oact; 3350 3351 if (arg2) { 3352 if (!lock_user_struct(VERIFY_READ, act, arg2, 1)) 3353 goto efault; 3354 } else 3355 act = NULL; 3356 if (arg3) { 3357 if (!lock_user_struct(VERIFY_WRITE, oact, arg3, 0)) { 3358 ret = -TARGET_EFAULT; 3359 goto rt_sigaction_fail; 3360 } 3361 } else 3362 oact = NULL; 3363 ret = get_errno(do_sigaction(arg1, act, oact)); 3364 rt_sigaction_fail: 3365 if (act) 3366 unlock_user_struct(act, arg2, 0); 3367 if (oact) 3368 unlock_user_struct(oact, arg3, 1); 3369 } 3370 break; 3371 #ifdef TARGET_NR_sgetmask /* not on alpha */ 3372 case TARGET_NR_sgetmask: 3373 { 3374 sigset_t cur_set; 3375 abi_ulong target_set; 3376 sigprocmask(0, NULL, &cur_set); 3377 host_to_target_old_sigset(&target_set, &cur_set); 3378 ret = target_set; 3379 } 3380 break; 3381 #endif 3382 #ifdef TARGET_NR_ssetmask /* not on alpha */ 3383 case TARGET_NR_ssetmask: 3384 { 3385 sigset_t set, oset, cur_set; 3386 abi_ulong target_set = arg1; 3387 sigprocmask(0, NULL, &cur_set); 3388 target_to_host_old_sigset(&set, &target_set); 3389 sigorset(&set, &set, &cur_set); 3390 sigprocmask(SIG_SETMASK, &set, &oset); 3391 host_to_target_old_sigset(&target_set, &oset); 3392 ret = target_set; 3393 } 3394 break; 3395 #endif 3396 #ifdef TARGET_NR_sigprocmask 3397 case TARGET_NR_sigprocmask: 3398 { 3399 int how = arg1; 3400 sigset_t set, oldset, *set_ptr; 3401 3402 if (arg2) { 3403 switch(how) { 3404 case TARGET_SIG_BLOCK: 3405 how = SIG_BLOCK; 3406 break; 3407 case TARGET_SIG_UNBLOCK: 3408 how = SIG_UNBLOCK; 3409 break; 3410 case TARGET_SIG_SETMASK: 3411 how = SIG_SETMASK; 3412 break; 3413 default: 3414 ret = -TARGET_EINVAL; 3415 goto fail; 3416 } 3417 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1))) 3418 goto efault; 3419 target_to_host_old_sigset(&set, p); 3420 unlock_user(p, arg2, 0); 3421 set_ptr = &set; 3422 } else { 3423 how = 0; 3424 set_ptr = NULL; 3425 } 3426 ret = get_errno(sigprocmask(arg1, set_ptr, &oldset)); 3427 if (!is_error(ret) && arg3) { 3428 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0))) 3429 goto efault; 3430 host_to_target_old_sigset(p, &oldset); 3431 unlock_user(p, arg3, sizeof(target_sigset_t)); 3432 } 3433 } 3434 break; 3435 #endif 3436 case TARGET_NR_rt_sigprocmask: 3437 { 3438 int how = arg1; 3439 sigset_t set, oldset, *set_ptr; 3440 3441 if (arg2) { 3442 switch(how) { 3443 case TARGET_SIG_BLOCK: 3444 how = SIG_BLOCK; 3445 break; 3446 case TARGET_SIG_UNBLOCK: 3447 how = SIG_UNBLOCK; 3448 break; 3449 case TARGET_SIG_SETMASK: 3450 how = SIG_SETMASK; 3451 break; 3452 default: 3453 ret = -TARGET_EINVAL; 3454 goto fail; 3455 } 3456 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1))) 3457 goto efault; 3458 target_to_host_sigset(&set, p); 3459 unlock_user(p, arg2, 0); 3460 set_ptr = &set; 3461 } else { 3462 how = 0; 3463 set_ptr = NULL; 3464 } 3465 ret = get_errno(sigprocmask(how, set_ptr, &oldset)); 3466 if (!is_error(ret) && arg3) { 3467 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0))) 3468 goto efault; 3469 host_to_target_sigset(p, &oldset); 3470 unlock_user(p, arg3, sizeof(target_sigset_t)); 3471 } 3472 } 3473 break; 3474 #ifdef TARGET_NR_sigpending 3475 case TARGET_NR_sigpending: 3476 { 3477 sigset_t set; 3478 ret = get_errno(sigpending(&set)); 3479 if (!is_error(ret)) { 3480 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0))) 3481 goto efault; 3482 host_to_target_old_sigset(p, &set); 3483 unlock_user(p, arg1, sizeof(target_sigset_t)); 3484 } 3485 } 3486 break; 3487 #endif 3488 case TARGET_NR_rt_sigpending: 3489 { 3490 sigset_t set; 3491 ret = get_errno(sigpending(&set)); 3492 if (!is_error(ret)) { 3493 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0))) 3494 goto efault; 3495 host_to_target_sigset(p, &set); 3496 unlock_user(p, arg1, sizeof(target_sigset_t)); 3497 } 3498 } 3499 break; 3500 #ifdef TARGET_NR_sigsuspend 3501 case TARGET_NR_sigsuspend: 3502 { 3503 sigset_t set; 3504 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1))) 3505 goto efault; 3506 target_to_host_old_sigset(&set, p); 3507 unlock_user(p, arg1, 0); 3508 ret = get_errno(sigsuspend(&set)); 3509 } 3510 break; 3511 #endif 3512 case TARGET_NR_rt_sigsuspend: 3513 { 3514 sigset_t set; 3515 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1))) 3516 goto efault; 3517 target_to_host_sigset(&set, p); 3518 unlock_user(p, arg1, 0); 3519 ret = get_errno(sigsuspend(&set)); 3520 } 3521 break; 3522 case TARGET_NR_rt_sigtimedwait: 3523 { 3524 sigset_t set; 3525 struct timespec uts, *puts; 3526 siginfo_t uinfo; 3527 3528 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1))) 3529 goto efault; 3530 target_to_host_sigset(&set, p); 3531 unlock_user(p, arg1, 0); 3532 if (arg3) { 3533 puts = &uts; 3534 target_to_host_timespec(puts, arg3); 3535 } else { 3536 puts = NULL; 3537 } 3538 ret = get_errno(sigtimedwait(&set, &uinfo, puts)); 3539 if (!is_error(ret) && arg2) { 3540 if (!(p = lock_user(VERIFY_WRITE, arg2, sizeof(target_sigset_t), 0))) 3541 goto efault; 3542 host_to_target_siginfo(p, &uinfo); 3543 unlock_user(p, arg2, sizeof(target_sigset_t)); 3544 } 3545 } 3546 break; 3547 case TARGET_NR_rt_sigqueueinfo: 3548 { 3549 siginfo_t uinfo; 3550 if (!(p = lock_user(VERIFY_READ, arg3, sizeof(target_sigset_t), 1))) 3551 goto efault; 3552 target_to_host_siginfo(&uinfo, p); 3553 unlock_user(p, arg1, 0); 3554 ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo)); 3555 } 3556 break; 3557 #ifdef TARGET_NR_sigreturn 3558 case TARGET_NR_sigreturn: 3559 /* NOTE: ret is eax, so not transcoding must be done */ 3560 ret = do_sigreturn(cpu_env); 3561 break; 3562 #endif 3563 case TARGET_NR_rt_sigreturn: 3564 /* NOTE: ret is eax, so not transcoding must be done */ 3565 ret = do_rt_sigreturn(cpu_env); 3566 break; 3567 case TARGET_NR_sethostname: 3568 if (!(p = lock_user_string(arg1))) 3569 goto efault; 3570 ret = get_errno(sethostname(p, arg2)); 3571 unlock_user(p, arg1, 0); 3572 break; 3573 case TARGET_NR_setrlimit: 3574 { 3575 /* XXX: convert resource ? */ 3576 int resource = arg1; 3577 struct target_rlimit *target_rlim; 3578 struct rlimit rlim; 3579 if (!lock_user_struct(VERIFY_READ, target_rlim, arg2, 1)) 3580 goto efault; 3581 rlim.rlim_cur = tswapl(target_rlim->rlim_cur); 3582 rlim.rlim_max = tswapl(target_rlim->rlim_max); 3583 unlock_user_struct(target_rlim, arg2, 0); 3584 ret = get_errno(setrlimit(resource, &rlim)); 3585 } 3586 break; 3587 case TARGET_NR_getrlimit: 3588 { 3589 /* XXX: convert resource ? */ 3590 int resource = arg1; 3591 struct target_rlimit *target_rlim; 3592 struct rlimit rlim; 3593 3594 ret = get_errno(getrlimit(resource, &rlim)); 3595 if (!is_error(ret)) { 3596 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0)) 3597 goto efault; 3598 rlim.rlim_cur = tswapl(target_rlim->rlim_cur); 3599 rlim.rlim_max = tswapl(target_rlim->rlim_max); 3600 unlock_user_struct(target_rlim, arg2, 1); 3601 } 3602 } 3603 break; 3604 case TARGET_NR_getrusage: 3605 { 3606 struct rusage rusage; 3607 ret = get_errno(getrusage(arg1, &rusage)); 3608 if (!is_error(ret)) { 3609 host_to_target_rusage(arg2, &rusage); 3610 } 3611 } 3612 break; 3613 case TARGET_NR_gettimeofday: 3614 { 3615 struct timeval tv; 3616 ret = get_errno(gettimeofday(&tv, NULL)); 3617 if (!is_error(ret)) { 3618 host_to_target_timeval(arg1, &tv); 3619 } 3620 } 3621 break; 3622 case TARGET_NR_settimeofday: 3623 { 3624 struct timeval tv; 3625 target_to_host_timeval(&tv, arg1); 3626 ret = get_errno(settimeofday(&tv, NULL)); 3627 } 3628 break; 3629 #ifdef TARGET_NR_select 3630 case TARGET_NR_select: 3631 { 3632 struct target_sel_arg_struct *sel; 3633 abi_ulong inp, outp, exp, tvp; 3634 long nsel; 3635 3636 if (!lock_user_struct(VERIFY_READ, sel, arg1, 1)) 3637 goto efault; 3638 nsel = tswapl(sel->n); 3639 inp = tswapl(sel->inp); 3640 outp = tswapl(sel->outp); 3641 exp = tswapl(sel->exp); 3642 tvp = tswapl(sel->tvp); 3643 unlock_user_struct(sel, arg1, 0); 3644 ret = do_select(nsel, inp, outp, exp, tvp); 3645 } 3646 break; 3647 #endif 3648 case TARGET_NR_symlink: 3649 { 3650 void *p2; 3651 p = lock_user_string(arg1); 3652 p2 = lock_user_string(arg2); 3653 if (!p || !p2) 3654 ret = -TARGET_EFAULT; 3655 else 3656 ret = get_errno(symlink(p, p2)); 3657 unlock_user(p2, arg2, 0); 3658 unlock_user(p, arg1, 0); 3659 } 3660 break; 3661 #if defined(TARGET_NR_symlinkat) && defined(__NR_symlinkat) 3662 case TARGET_NR_symlinkat: 3663 { 3664 void *p2; 3665 p = lock_user_string(arg1); 3666 p2 = lock_user_string(arg3); 3667 if (!p || !p2) 3668 ret = -TARGET_EFAULT; 3669 else 3670 ret = get_errno(sys_symlinkat(p, arg2, p2)); 3671 unlock_user(p2, arg3, 0); 3672 unlock_user(p, arg1, 0); 3673 } 3674 break; 3675 #endif 3676 #ifdef TARGET_NR_oldlstat 3677 case TARGET_NR_oldlstat: 3678 goto unimplemented; 3679 #endif 3680 case TARGET_NR_readlink: 3681 { 3682 void *p2; 3683 p = lock_user_string(arg1); 3684 p2 = lock_user(VERIFY_WRITE, arg2, arg3, 0); 3685 if (!p || !p2) 3686 ret = -TARGET_EFAULT; 3687 else 3688 ret = get_errno(readlink(path(p), p2, arg3)); 3689 unlock_user(p2, arg2, ret); 3690 unlock_user(p, arg1, 0); 3691 } 3692 break; 3693 #if defined(TARGET_NR_readlinkat) && defined(__NR_readlinkat) 3694 case TARGET_NR_readlinkat: 3695 { 3696 void *p2; 3697 p = lock_user_string(arg2); 3698 p2 = lock_user(VERIFY_WRITE, arg3, arg4, 0); 3699 if (!p || !p2) 3700 ret = -TARGET_EFAULT; 3701 else 3702 ret = get_errno(sys_readlinkat(arg1, path(p), p2, arg4)); 3703 unlock_user(p2, arg3, ret); 3704 unlock_user(p, arg2, 0); 3705 } 3706 break; 3707 #endif 3708 #ifdef TARGET_NR_uselib 3709 case TARGET_NR_uselib: 3710 goto unimplemented; 3711 #endif 3712 #ifdef TARGET_NR_swapon 3713 case TARGET_NR_swapon: 3714 if (!(p = lock_user_string(arg1))) 3715 goto efault; 3716 ret = get_errno(swapon(p, arg2)); 3717 unlock_user(p, arg1, 0); 3718 break; 3719 #endif 3720 case TARGET_NR_reboot: 3721 goto unimplemented; 3722 #ifdef TARGET_NR_readdir 3723 case TARGET_NR_readdir: 3724 goto unimplemented; 3725 #endif 3726 #ifdef TARGET_NR_mmap 3727 case TARGET_NR_mmap: 3728 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_CRIS) 3729 { 3730 abi_ulong *v; 3731 abi_ulong v1, v2, v3, v4, v5, v6; 3732 if (!(v = lock_user(VERIFY_READ, arg1, 6 * sizeof(abi_ulong), 1))) 3733 goto efault; 3734 v1 = tswapl(v[0]); 3735 v2 = tswapl(v[1]); 3736 v3 = tswapl(v[2]); 3737 v4 = tswapl(v[3]); 3738 v5 = tswapl(v[4]); 3739 v6 = tswapl(v[5]); 3740 unlock_user(v, arg1, 0); 3741 ret = get_errno(target_mmap(v1, v2, v3, 3742 target_to_host_bitmask(v4, mmap_flags_tbl), 3743 v5, v6)); 3744 } 3745 #else 3746 ret = get_errno(target_mmap(arg1, arg2, arg3, 3747 target_to_host_bitmask(arg4, mmap_flags_tbl), 3748 arg5, 3749 arg6)); 3750 #endif 3751 break; 3752 #endif 3753 #ifdef TARGET_NR_mmap2 3754 case TARGET_NR_mmap2: 3755 #if defined(TARGET_SPARC) || defined(TARGET_MIPS) 3756 #define MMAP_SHIFT 12 3757 #else 3758 #define MMAP_SHIFT TARGET_PAGE_BITS 3759 #endif 3760 ret = get_errno(target_mmap(arg1, arg2, arg3, 3761 target_to_host_bitmask(arg4, mmap_flags_tbl), 3762 arg5, 3763 arg6 << MMAP_SHIFT)); 3764 break; 3765 #endif 3766 case TARGET_NR_munmap: 3767 ret = get_errno(target_munmap(arg1, arg2)); 3768 break; 3769 case TARGET_NR_mprotect: 3770 ret = get_errno(target_mprotect(arg1, arg2, arg3)); 3771 break; 3772 #ifdef TARGET_NR_mremap 3773 case TARGET_NR_mremap: 3774 ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5)); 3775 break; 3776 #endif 3777 /* ??? msync/mlock/munlock are broken for softmmu. */ 3778 #ifdef TARGET_NR_msync 3779 case TARGET_NR_msync: 3780 ret = get_errno(msync(g2h(arg1), arg2, arg3)); 3781 break; 3782 #endif 3783 #ifdef TARGET_NR_mlock 3784 case TARGET_NR_mlock: 3785 ret = get_errno(mlock(g2h(arg1), arg2)); 3786 break; 3787 #endif 3788 #ifdef TARGET_NR_munlock 3789 case TARGET_NR_munlock: 3790 ret = get_errno(munlock(g2h(arg1), arg2)); 3791 break; 3792 #endif 3793 #ifdef TARGET_NR_mlockall 3794 case TARGET_NR_mlockall: 3795 ret = get_errno(mlockall(arg1)); 3796 break; 3797 #endif 3798 #ifdef TARGET_NR_munlockall 3799 case TARGET_NR_munlockall: 3800 ret = get_errno(munlockall()); 3801 break; 3802 #endif 3803 case TARGET_NR_truncate: 3804 if (!(p = lock_user_string(arg1))) 3805 goto efault; 3806 ret = get_errno(truncate(p, arg2)); 3807 unlock_user(p, arg1, 0); 3808 break; 3809 case TARGET_NR_ftruncate: 3810 ret = get_errno(ftruncate(arg1, arg2)); 3811 break; 3812 case TARGET_NR_fchmod: 3813 ret = get_errno(fchmod(arg1, arg2)); 3814 break; 3815 #if defined(TARGET_NR_fchmodat) && defined(__NR_fchmodat) 3816 case TARGET_NR_fchmodat: 3817 if (!(p = lock_user_string(arg2))) 3818 goto efault; 3819 ret = get_errno(sys_fchmodat(arg1, p, arg3, arg4)); 3820 unlock_user(p, arg2, 0); 3821 break; 3822 #endif 3823 case TARGET_NR_getpriority: 3824 /* libc does special remapping of the return value of 3825 * sys_getpriority() so it's just easiest to call 3826 * sys_getpriority() directly rather than through libc. */ 3827 ret = sys_getpriority(arg1, arg2); 3828 break; 3829 case TARGET_NR_setpriority: 3830 ret = get_errno(setpriority(arg1, arg2, arg3)); 3831 break; 3832 #ifdef TARGET_NR_profil 3833 case TARGET_NR_profil: 3834 goto unimplemented; 3835 #endif 3836 case TARGET_NR_statfs: 3837 if (!(p = lock_user_string(arg1))) 3838 goto efault; 3839 ret = get_errno(statfs(path(p), &stfs)); 3840 unlock_user(p, arg1, 0); 3841 convert_statfs: 3842 if (!is_error(ret)) { 3843 struct target_statfs *target_stfs; 3844 3845 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg2, 0)) 3846 goto efault; 3847 __put_user(stfs.f_type, &target_stfs->f_type); 3848 __put_user(stfs.f_bsize, &target_stfs->f_bsize); 3849 __put_user(stfs.f_blocks, &target_stfs->f_blocks); 3850 __put_user(stfs.f_bfree, &target_stfs->f_bfree); 3851 __put_user(stfs.f_bavail, &target_stfs->f_bavail); 3852 __put_user(stfs.f_files, &target_stfs->f_files); 3853 __put_user(stfs.f_ffree, &target_stfs->f_ffree); 3854 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]); 3855 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]); 3856 __put_user(stfs.f_namelen, &target_stfs->f_namelen); 3857 unlock_user_struct(target_stfs, arg2, 1); 3858 } 3859 break; 3860 case TARGET_NR_fstatfs: 3861 ret = get_errno(fstatfs(arg1, &stfs)); 3862 goto convert_statfs; 3863 #ifdef TARGET_NR_statfs64 3864 case TARGET_NR_statfs64: 3865 if (!(p = lock_user_string(arg1))) 3866 goto efault; 3867 ret = get_errno(statfs(path(p), &stfs)); 3868 unlock_user(p, arg1, 0); 3869 convert_statfs64: 3870 if (!is_error(ret)) { 3871 struct target_statfs64 *target_stfs; 3872 3873 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg3, 0)) 3874 goto efault; 3875 __put_user(stfs.f_type, &target_stfs->f_type); 3876 __put_user(stfs.f_bsize, &target_stfs->f_bsize); 3877 __put_user(stfs.f_blocks, &target_stfs->f_blocks); 3878 __put_user(stfs.f_bfree, &target_stfs->f_bfree); 3879 __put_user(stfs.f_bavail, &target_stfs->f_bavail); 3880 __put_user(stfs.f_files, &target_stfs->f_files); 3881 __put_user(stfs.f_ffree, &target_stfs->f_ffree); 3882 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]); 3883 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]); 3884 __put_user(stfs.f_namelen, &target_stfs->f_namelen); 3885 unlock_user_struct(target_stfs, arg3, 1); 3886 } 3887 break; 3888 case TARGET_NR_fstatfs64: 3889 ret = get_errno(fstatfs(arg1, &stfs)); 3890 goto convert_statfs64; 3891 #endif 3892 #ifdef TARGET_NR_ioperm 3893 case TARGET_NR_ioperm: 3894 goto unimplemented; 3895 #endif 3896 #ifdef TARGET_NR_socketcall 3897 case TARGET_NR_socketcall: 3898 ret = do_socketcall(arg1, arg2); 3899 break; 3900 #endif 3901 #ifdef TARGET_NR_accept 3902 case TARGET_NR_accept: 3903 ret = do_accept(arg1, arg2, arg3); 3904 break; 3905 #endif 3906 #ifdef TARGET_NR_bind 3907 case TARGET_NR_bind: 3908 ret = do_bind(arg1, arg2, arg3); 3909 break; 3910 #endif 3911 #ifdef TARGET_NR_connect 3912 case TARGET_NR_connect: 3913 ret = do_connect(arg1, arg2, arg3); 3914 break; 3915 #endif 3916 #ifdef TARGET_NR_getpeername 3917 case TARGET_NR_getpeername: 3918 ret = do_getpeername(arg1, arg2, arg3); 3919 break; 3920 #endif 3921 #ifdef TARGET_NR_getsockname 3922 case TARGET_NR_getsockname: 3923 ret = do_getsockname(arg1, arg2, arg3); 3924 break; 3925 #endif 3926 #ifdef TARGET_NR_getsockopt 3927 case TARGET_NR_getsockopt: 3928 ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5); 3929 break; 3930 #endif 3931 #ifdef TARGET_NR_listen 3932 case TARGET_NR_listen: 3933 ret = get_errno(listen(arg1, arg2)); 3934 break; 3935 #endif 3936 #ifdef TARGET_NR_recv 3937 case TARGET_NR_recv: 3938 ret = do_recvfrom(arg1, arg2, arg3, arg4, 0, 0); 3939 break; 3940 #endif 3941 #ifdef TARGET_NR_recvfrom 3942 case TARGET_NR_recvfrom: 3943 ret = do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6); 3944 break; 3945 #endif 3946 #ifdef TARGET_NR_recvmsg 3947 case TARGET_NR_recvmsg: 3948 ret = do_sendrecvmsg(arg1, arg2, arg3, 0); 3949 break; 3950 #endif 3951 #ifdef TARGET_NR_send 3952 case TARGET_NR_send: 3953 ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0); 3954 break; 3955 #endif 3956 #ifdef TARGET_NR_sendmsg 3957 case TARGET_NR_sendmsg: 3958 ret = do_sendrecvmsg(arg1, arg2, arg3, 1); 3959 break; 3960 #endif 3961 #ifdef TARGET_NR_sendto 3962 case TARGET_NR_sendto: 3963 ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6); 3964 break; 3965 #endif 3966 #ifdef TARGET_NR_shutdown 3967 case TARGET_NR_shutdown: 3968 ret = get_errno(shutdown(arg1, arg2)); 3969 break; 3970 #endif 3971 #ifdef TARGET_NR_socket 3972 case TARGET_NR_socket: 3973 ret = do_socket(arg1, arg2, arg3); 3974 break; 3975 #endif 3976 #ifdef TARGET_NR_socketpair 3977 case TARGET_NR_socketpair: 3978 ret = do_socketpair(arg1, arg2, arg3, arg4); 3979 break; 3980 #endif 3981 #ifdef TARGET_NR_setsockopt 3982 case TARGET_NR_setsockopt: 3983 ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5); 3984 break; 3985 #endif 3986 3987 case TARGET_NR_syslog: 3988 if (!(p = lock_user_string(arg2))) 3989 goto efault; 3990 ret = get_errno(sys_syslog((int)arg1, p, (int)arg3)); 3991 unlock_user(p, arg2, 0); 3992 break; 3993 3994 case TARGET_NR_setitimer: 3995 { 3996 struct itimerval value, ovalue, *pvalue; 3997 3998 if (arg2) { 3999 pvalue = &value; 4000 target_to_host_timeval(&pvalue->it_interval, 4001 arg2); 4002 target_to_host_timeval(&pvalue->it_value, 4003 arg2 + sizeof(struct target_timeval)); 4004 } else { 4005 pvalue = NULL; 4006 } 4007 ret = get_errno(setitimer(arg1, pvalue, &ovalue)); 4008 if (!is_error(ret) && arg3) { 4009 host_to_target_timeval(arg3, 4010 &ovalue.it_interval); 4011 host_to_target_timeval(arg3 + sizeof(struct target_timeval), 4012 &ovalue.it_value); 4013 } 4014 } 4015 break; 4016 case TARGET_NR_getitimer: 4017 { 4018 struct itimerval value; 4019 4020 ret = get_errno(getitimer(arg1, &value)); 4021 if (!is_error(ret) && arg2) { 4022 host_to_target_timeval(arg2, 4023 &value.it_interval); 4024 host_to_target_timeval(arg2 + sizeof(struct target_timeval), 4025 &value.it_value); 4026 } 4027 } 4028 break; 4029 case TARGET_NR_stat: 4030 if (!(p = lock_user_string(arg1))) 4031 goto efault; 4032 ret = get_errno(stat(path(p), &st)); 4033 unlock_user(p, arg1, 0); 4034 goto do_stat; 4035 case TARGET_NR_lstat: 4036 if (!(p = lock_user_string(arg1))) 4037 goto efault; 4038 ret = get_errno(lstat(path(p), &st)); 4039 unlock_user(p, arg1, 0); 4040 goto do_stat; 4041 case TARGET_NR_fstat: 4042 { 4043 ret = get_errno(fstat(arg1, &st)); 4044 do_stat: 4045 if (!is_error(ret)) { 4046 struct target_stat *target_st; 4047 4048 if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0)) 4049 goto efault; 4050 #if defined(TARGET_MIPS) || (defined(TARGET_SPARC64) && !defined(TARGET_ABI32)) 4051 target_st->st_dev = tswap32(st.st_dev); 4052 #else 4053 target_st->st_dev = tswap16(st.st_dev); 4054 #endif 4055 target_st->st_ino = tswapl(st.st_ino); 4056 #if defined(TARGET_PPC) || defined(TARGET_MIPS) 4057 target_st->st_mode = tswapl(st.st_mode); /* XXX: check this */ 4058 target_st->st_uid = tswap32(st.st_uid); 4059 target_st->st_gid = tswap32(st.st_gid); 4060 #elif defined(TARGET_SPARC64) && !defined(TARGET_ABI32) 4061 target_st->st_mode = tswap32(st.st_mode); 4062 target_st->st_uid = tswap32(st.st_uid); 4063 target_st->st_gid = tswap32(st.st_gid); 4064 #else 4065 target_st->st_mode = tswap16(st.st_mode); 4066 target_st->st_uid = tswap16(st.st_uid); 4067 target_st->st_gid = tswap16(st.st_gid); 4068 #endif 4069 #if defined(TARGET_MIPS) 4070 /* If this is the same on PPC, then just merge w/ the above ifdef */ 4071 target_st->st_nlink = tswapl(st.st_nlink); 4072 target_st->st_rdev = tswapl(st.st_rdev); 4073 #elif defined(TARGET_SPARC64) && !defined(TARGET_ABI32) 4074 target_st->st_nlink = tswap32(st.st_nlink); 4075 target_st->st_rdev = tswap32(st.st_rdev); 4076 #else 4077 target_st->st_nlink = tswap16(st.st_nlink); 4078 target_st->st_rdev = tswap16(st.st_rdev); 4079 #endif 4080 target_st->st_size = tswapl(st.st_size); 4081 target_st->st_blksize = tswapl(st.st_blksize); 4082 target_st->st_blocks = tswapl(st.st_blocks); 4083 target_st->target_st_atime = tswapl(st.st_atime); 4084 target_st->target_st_mtime = tswapl(st.st_mtime); 4085 target_st->target_st_ctime = tswapl(st.st_ctime); 4086 unlock_user_struct(target_st, arg2, 1); 4087 } 4088 } 4089 break; 4090 #ifdef TARGET_NR_olduname 4091 case TARGET_NR_olduname: 4092 goto unimplemented; 4093 #endif 4094 #ifdef TARGET_NR_iopl 4095 case TARGET_NR_iopl: 4096 goto unimplemented; 4097 #endif 4098 case TARGET_NR_vhangup: 4099 ret = get_errno(vhangup()); 4100 break; 4101 #ifdef TARGET_NR_idle 4102 case TARGET_NR_idle: 4103 goto unimplemented; 4104 #endif 4105 #ifdef TARGET_NR_syscall 4106 case TARGET_NR_syscall: 4107 ret = do_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,0); 4108 break; 4109 #endif 4110 case TARGET_NR_wait4: 4111 { 4112 int status; 4113 abi_long status_ptr = arg2; 4114 struct rusage rusage, *rusage_ptr; 4115 abi_ulong target_rusage = arg4; 4116 if (target_rusage) 4117 rusage_ptr = &rusage; 4118 else 4119 rusage_ptr = NULL; 4120 ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr)); 4121 if (!is_error(ret)) { 4122 if (status_ptr) 4123 tputl(status_ptr, status); 4124 if (target_rusage) { 4125 host_to_target_rusage(target_rusage, &rusage); 4126 } 4127 } 4128 } 4129 break; 4130 #ifdef TARGET_NR_swapoff 4131 case TARGET_NR_swapoff: 4132 if (!(p = lock_user_string(arg1))) 4133 goto efault; 4134 ret = get_errno(swapoff(p)); 4135 unlock_user(p, arg1, 0); 4136 break; 4137 #endif 4138 case TARGET_NR_sysinfo: 4139 { 4140 struct target_sysinfo *target_value; 4141 struct sysinfo value; 4142 ret = get_errno(sysinfo(&value)); 4143 if (!is_error(ret) && arg1) 4144 { 4145 if (!lock_user_struct(VERIFY_WRITE, target_value, arg1, 0)) 4146 goto efault; 4147 __put_user(value.uptime, &target_value->uptime); 4148 __put_user(value.loads[0], &target_value->loads[0]); 4149 __put_user(value.loads[1], &target_value->loads[1]); 4150 __put_user(value.loads[2], &target_value->loads[2]); 4151 __put_user(value.totalram, &target_value->totalram); 4152 __put_user(value.freeram, &target_value->freeram); 4153 __put_user(value.sharedram, &target_value->sharedram); 4154 __put_user(value.bufferram, &target_value->bufferram); 4155 __put_user(value.totalswap, &target_value->totalswap); 4156 __put_user(value.freeswap, &target_value->freeswap); 4157 __put_user(value.procs, &target_value->procs); 4158 __put_user(value.totalhigh, &target_value->totalhigh); 4159 __put_user(value.freehigh, &target_value->freehigh); 4160 __put_user(value.mem_unit, &target_value->mem_unit); 4161 unlock_user_struct(target_value, arg1, 1); 4162 } 4163 } 4164 break; 4165 #ifdef TARGET_NR_ipc 4166 case TARGET_NR_ipc: 4167 ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6); 4168 break; 4169 #endif 4170 case TARGET_NR_fsync: 4171 ret = get_errno(fsync(arg1)); 4172 break; 4173 case TARGET_NR_clone: 4174 ret = get_errno(do_fork(cpu_env, arg1, arg2)); 4175 break; 4176 #ifdef __NR_exit_group 4177 /* new thread calls */ 4178 case TARGET_NR_exit_group: 4179 gdb_exit(cpu_env, arg1); 4180 ret = get_errno(exit_group(arg1)); 4181 break; 4182 #endif 4183 case TARGET_NR_setdomainname: 4184 if (!(p = lock_user_string(arg1))) 4185 goto efault; 4186 ret = get_errno(setdomainname(p, arg2)); 4187 unlock_user(p, arg1, 0); 4188 break; 4189 case TARGET_NR_uname: 4190 /* no need to transcode because we use the linux syscall */ 4191 { 4192 struct new_utsname * buf; 4193 4194 if (!lock_user_struct(VERIFY_WRITE, buf, arg1, 0)) 4195 goto efault; 4196 ret = get_errno(sys_uname(buf)); 4197 if (!is_error(ret)) { 4198 /* Overrite the native machine name with whatever is being 4199 emulated. */ 4200 strcpy (buf->machine, UNAME_MACHINE); 4201 /* Allow the user to override the reported release. */ 4202 if (qemu_uname_release && *qemu_uname_release) 4203 strcpy (buf->release, qemu_uname_release); 4204 } 4205 unlock_user_struct(buf, arg1, 1); 4206 } 4207 break; 4208 #ifdef TARGET_I386 4209 case TARGET_NR_modify_ldt: 4210 ret = do_modify_ldt(cpu_env, arg1, arg2, arg3); 4211 break; 4212 #if !defined(TARGET_X86_64) 4213 case TARGET_NR_vm86old: 4214 goto unimplemented; 4215 case TARGET_NR_vm86: 4216 ret = do_vm86(cpu_env, arg1, arg2); 4217 break; 4218 #endif 4219 #endif 4220 case TARGET_NR_adjtimex: 4221 goto unimplemented; 4222 #ifdef TARGET_NR_create_module 4223 case TARGET_NR_create_module: 4224 #endif 4225 case TARGET_NR_init_module: 4226 case TARGET_NR_delete_module: 4227 #ifdef TARGET_NR_get_kernel_syms 4228 case TARGET_NR_get_kernel_syms: 4229 #endif 4230 goto unimplemented; 4231 case TARGET_NR_quotactl: 4232 goto unimplemented; 4233 case TARGET_NR_getpgid: 4234 ret = get_errno(getpgid(arg1)); 4235 break; 4236 case TARGET_NR_fchdir: 4237 ret = get_errno(fchdir(arg1)); 4238 break; 4239 #ifdef TARGET_NR_bdflush /* not on x86_64 */ 4240 case TARGET_NR_bdflush: 4241 goto unimplemented; 4242 #endif 4243 #ifdef TARGET_NR_sysfs 4244 case TARGET_NR_sysfs: 4245 goto unimplemented; 4246 #endif 4247 case TARGET_NR_personality: 4248 ret = get_errno(personality(arg1)); 4249 break; 4250 #ifdef TARGET_NR_afs_syscall 4251 case TARGET_NR_afs_syscall: 4252 goto unimplemented; 4253 #endif 4254 #ifdef TARGET_NR__llseek /* Not on alpha */ 4255 case TARGET_NR__llseek: 4256 { 4257 #if defined (__x86_64__) 4258 ret = get_errno(lseek(arg1, ((uint64_t )arg2 << 32) | arg3, arg5)); 4259 tput64(arg4, ret); 4260 #else 4261 int64_t res; 4262 ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5)); 4263 tput64(arg4, res); 4264 #endif 4265 } 4266 break; 4267 #endif 4268 case TARGET_NR_getdents: 4269 #if TARGET_ABI_BITS != 32 4270 goto unimplemented; 4271 #elif TARGET_ABI_BITS == 32 && HOST_LONG_BITS == 64 4272 { 4273 struct target_dirent *target_dirp; 4274 struct dirent *dirp; 4275 abi_long count = arg3; 4276 4277 dirp = malloc(count); 4278 if (!dirp) { 4279 ret = -TARGET_ENOMEM; 4280 goto fail; 4281 } 4282 4283 ret = get_errno(sys_getdents(arg1, dirp, count)); 4284 if (!is_error(ret)) { 4285 struct dirent *de; 4286 struct target_dirent *tde; 4287 int len = ret; 4288 int reclen, treclen; 4289 int count1, tnamelen; 4290 4291 count1 = 0; 4292 de = dirp; 4293 if (!(target_dirp = lock_user(VERIFY_WRITE, arg2, count, 0))) 4294 goto efault; 4295 tde = target_dirp; 4296 while (len > 0) { 4297 reclen = de->d_reclen; 4298 treclen = reclen - (2 * (sizeof(long) - sizeof(abi_long))); 4299 tde->d_reclen = tswap16(treclen); 4300 tde->d_ino = tswapl(de->d_ino); 4301 tde->d_off = tswapl(de->d_off); 4302 tnamelen = treclen - (2 * sizeof(abi_long) + 2); 4303 if (tnamelen > 256) 4304 tnamelen = 256; 4305 /* XXX: may not be correct */ 4306 strncpy(tde->d_name, de->d_name, tnamelen); 4307 de = (struct dirent *)((char *)de + reclen); 4308 len -= reclen; 4309 tde = (struct target_dirent *)((char *)tde + treclen); 4310 count1 += treclen; 4311 } 4312 ret = count1; 4313 unlock_user(target_dirp, arg2, ret); 4314 } 4315 free(dirp); 4316 } 4317 #else 4318 { 4319 struct dirent *dirp; 4320 abi_long count = arg3; 4321 4322 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0))) 4323 goto efault; 4324 ret = get_errno(sys_getdents(arg1, dirp, count)); 4325 if (!is_error(ret)) { 4326 struct dirent *de; 4327 int len = ret; 4328 int reclen; 4329 de = dirp; 4330 while (len > 0) { 4331 reclen = de->d_reclen; 4332 if (reclen > len) 4333 break; 4334 de->d_reclen = tswap16(reclen); 4335 tswapls(&de->d_ino); 4336 tswapls(&de->d_off); 4337 de = (struct dirent *)((char *)de + reclen); 4338 len -= reclen; 4339 } 4340 } 4341 unlock_user(dirp, arg2, ret); 4342 } 4343 #endif 4344 break; 4345 #if defined(TARGET_NR_getdents64) && defined(__NR_getdents64) 4346 case TARGET_NR_getdents64: 4347 { 4348 struct dirent64 *dirp; 4349 abi_long count = arg3; 4350 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0))) 4351 goto efault; 4352 ret = get_errno(sys_getdents64(arg1, dirp, count)); 4353 if (!is_error(ret)) { 4354 struct dirent64 *de; 4355 int len = ret; 4356 int reclen; 4357 de = dirp; 4358 while (len > 0) { 4359 reclen = de->d_reclen; 4360 if (reclen > len) 4361 break; 4362 de->d_reclen = tswap16(reclen); 4363 tswap64s(&de->d_ino); 4364 tswap64s(&de->d_off); 4365 de = (struct dirent64 *)((char *)de + reclen); 4366 len -= reclen; 4367 } 4368 } 4369 unlock_user(dirp, arg2, ret); 4370 } 4371 break; 4372 #endif /* TARGET_NR_getdents64 */ 4373 #ifdef TARGET_NR__newselect 4374 case TARGET_NR__newselect: 4375 ret = do_select(arg1, arg2, arg3, arg4, arg5); 4376 break; 4377 #endif 4378 #ifdef TARGET_NR_poll 4379 case TARGET_NR_poll: 4380 { 4381 struct target_pollfd *target_pfd; 4382 unsigned int nfds = arg2; 4383 int timeout = arg3; 4384 struct pollfd *pfd; 4385 unsigned int i; 4386 4387 target_pfd = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_pollfd) * nfds, 1); 4388 if (!target_pfd) 4389 goto efault; 4390 pfd = alloca(sizeof(struct pollfd) * nfds); 4391 for(i = 0; i < nfds; i++) { 4392 pfd[i].fd = tswap32(target_pfd[i].fd); 4393 pfd[i].events = tswap16(target_pfd[i].events); 4394 } 4395 ret = get_errno(poll(pfd, nfds, timeout)); 4396 if (!is_error(ret)) { 4397 for(i = 0; i < nfds; i++) { 4398 target_pfd[i].revents = tswap16(pfd[i].revents); 4399 } 4400 ret += nfds * (sizeof(struct target_pollfd) 4401 - sizeof(struct pollfd)); 4402 } 4403 unlock_user(target_pfd, arg1, ret); 4404 } 4405 break; 4406 #endif 4407 case TARGET_NR_flock: 4408 /* NOTE: the flock constant seems to be the same for every 4409 Linux platform */ 4410 ret = get_errno(flock(arg1, arg2)); 4411 break; 4412 case TARGET_NR_readv: 4413 { 4414 int count = arg3; 4415 struct iovec *vec; 4416 4417 vec = alloca(count * sizeof(struct iovec)); 4418 lock_iovec(VERIFY_WRITE, vec, arg2, count, 0); 4419 ret = get_errno(readv(arg1, vec, count)); 4420 unlock_iovec(vec, arg2, count, 1); 4421 } 4422 break; 4423 case TARGET_NR_writev: 4424 { 4425 int count = arg3; 4426 struct iovec *vec; 4427 4428 vec = alloca(count * sizeof(struct iovec)); 4429 lock_iovec(VERIFY_READ, vec, arg2, count, 1); 4430 ret = get_errno(writev(arg1, vec, count)); 4431 unlock_iovec(vec, arg2, count, 0); 4432 } 4433 break; 4434 case TARGET_NR_getsid: 4435 ret = get_errno(getsid(arg1)); 4436 break; 4437 #if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */ 4438 case TARGET_NR_fdatasync: 4439 ret = get_errno(fdatasync(arg1)); 4440 break; 4441 #endif 4442 case TARGET_NR__sysctl: 4443 /* We don't implement this, but ENOTDIR is always a safe 4444 return value. */ 4445 ret = -TARGET_ENOTDIR; 4446 break; 4447 case TARGET_NR_sched_setparam: 4448 { 4449 struct sched_param *target_schp; 4450 struct sched_param schp; 4451 4452 if (!lock_user_struct(VERIFY_READ, target_schp, arg2, 1)) 4453 goto efault; 4454 schp.sched_priority = tswap32(target_schp->sched_priority); 4455 unlock_user_struct(target_schp, arg2, 0); 4456 ret = get_errno(sched_setparam(arg1, &schp)); 4457 } 4458 break; 4459 case TARGET_NR_sched_getparam: 4460 { 4461 struct sched_param *target_schp; 4462 struct sched_param schp; 4463 ret = get_errno(sched_getparam(arg1, &schp)); 4464 if (!is_error(ret)) { 4465 if (!lock_user_struct(VERIFY_WRITE, target_schp, arg2, 0)) 4466 goto efault; 4467 target_schp->sched_priority = tswap32(schp.sched_priority); 4468 unlock_user_struct(target_schp, arg2, 1); 4469 } 4470 } 4471 break; 4472 case TARGET_NR_sched_setscheduler: 4473 { 4474 struct sched_param *target_schp; 4475 struct sched_param schp; 4476 if (!lock_user_struct(VERIFY_READ, target_schp, arg3, 1)) 4477 goto efault; 4478 schp.sched_priority = tswap32(target_schp->sched_priority); 4479 unlock_user_struct(target_schp, arg3, 0); 4480 ret = get_errno(sched_setscheduler(arg1, arg2, &schp)); 4481 } 4482 break; 4483 case TARGET_NR_sched_getscheduler: 4484 ret = get_errno(sched_getscheduler(arg1)); 4485 break; 4486 case TARGET_NR_sched_yield: 4487 ret = get_errno(sched_yield()); 4488 break; 4489 case TARGET_NR_sched_get_priority_max: 4490 ret = get_errno(sched_get_priority_max(arg1)); 4491 break; 4492 case TARGET_NR_sched_get_priority_min: 4493 ret = get_errno(sched_get_priority_min(arg1)); 4494 break; 4495 case TARGET_NR_sched_rr_get_interval: 4496 { 4497 struct timespec ts; 4498 ret = get_errno(sched_rr_get_interval(arg1, &ts)); 4499 if (!is_error(ret)) { 4500 host_to_target_timespec(arg2, &ts); 4501 } 4502 } 4503 break; 4504 case TARGET_NR_nanosleep: 4505 { 4506 struct timespec req, rem; 4507 target_to_host_timespec(&req, arg1); 4508 ret = get_errno(nanosleep(&req, &rem)); 4509 if (is_error(ret) && arg2) { 4510 host_to_target_timespec(arg2, &rem); 4511 } 4512 } 4513 break; 4514 #ifdef TARGET_NR_query_module 4515 case TARGET_NR_query_module: 4516 goto unimplemented; 4517 #endif 4518 #ifdef TARGET_NR_nfsservctl 4519 case TARGET_NR_nfsservctl: 4520 goto unimplemented; 4521 #endif 4522 case TARGET_NR_prctl: 4523 switch (arg1) 4524 { 4525 case PR_GET_PDEATHSIG: 4526 { 4527 int deathsig; 4528 ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5)); 4529 if (!is_error(ret) && arg2) 4530 tput32(arg2, deathsig); 4531 } 4532 break; 4533 default: 4534 ret = get_errno(prctl(arg1, arg2, arg3, arg4, arg5)); 4535 break; 4536 } 4537 break; 4538 #ifdef TARGET_NR_pread 4539 case TARGET_NR_pread: 4540 page_unprotect_range(arg2, arg3); 4541 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0))) 4542 goto efault; 4543 ret = get_errno(pread(arg1, p, arg3, arg4)); 4544 unlock_user(p, arg2, ret); 4545 break; 4546 case TARGET_NR_pwrite: 4547 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1))) 4548 goto efault; 4549 ret = get_errno(pwrite(arg1, p, arg3, arg4)); 4550 unlock_user(p, arg2, 0); 4551 break; 4552 #endif 4553 case TARGET_NR_getcwd: 4554 if (!(p = lock_user(VERIFY_WRITE, arg1, arg2, 0))) 4555 goto efault; 4556 ret = get_errno(sys_getcwd1(p, arg2)); 4557 unlock_user(p, arg1, ret); 4558 break; 4559 case TARGET_NR_capget: 4560 goto unimplemented; 4561 case TARGET_NR_capset: 4562 goto unimplemented; 4563 case TARGET_NR_sigaltstack: 4564 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_MIPS) || \ 4565 defined(TARGET_SPARC) || defined(TARGET_PPC) || defined(TARGET_ALPHA) 4566 ret = do_sigaltstack(arg1, arg2, get_sp_from_cpustate((CPUState *)cpu_env)); 4567 break; 4568 #else 4569 goto unimplemented; 4570 #endif 4571 case TARGET_NR_sendfile: 4572 goto unimplemented; 4573 #ifdef TARGET_NR_getpmsg 4574 case TARGET_NR_getpmsg: 4575 goto unimplemented; 4576 #endif 4577 #ifdef TARGET_NR_putpmsg 4578 case TARGET_NR_putpmsg: 4579 goto unimplemented; 4580 #endif 4581 #ifdef TARGET_NR_vfork 4582 case TARGET_NR_vfork: 4583 ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0)); 4584 break; 4585 #endif 4586 #ifdef TARGET_NR_ugetrlimit 4587 case TARGET_NR_ugetrlimit: 4588 { 4589 struct rlimit rlim; 4590 ret = get_errno(getrlimit(arg1, &rlim)); 4591 if (!is_error(ret)) { 4592 struct target_rlimit *target_rlim; 4593 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0)) 4594 goto efault; 4595 target_rlim->rlim_cur = tswapl(rlim.rlim_cur); 4596 target_rlim->rlim_max = tswapl(rlim.rlim_max); 4597 unlock_user_struct(target_rlim, arg2, 1); 4598 } 4599 break; 4600 } 4601 #endif 4602 #ifdef TARGET_NR_truncate64 4603 case TARGET_NR_truncate64: 4604 if (!(p = lock_user_string(arg1))) 4605 goto efault; 4606 ret = target_truncate64(cpu_env, p, arg2, arg3, arg4); 4607 unlock_user(p, arg1, 0); 4608 break; 4609 #endif 4610 #ifdef TARGET_NR_ftruncate64 4611 case TARGET_NR_ftruncate64: 4612 ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4); 4613 break; 4614 #endif 4615 #ifdef TARGET_NR_stat64 4616 case TARGET_NR_stat64: 4617 if (!(p = lock_user_string(arg1))) 4618 goto efault; 4619 ret = get_errno(stat(path(p), &st)); 4620 unlock_user(p, arg1, 0); 4621 goto do_stat64; 4622 #endif 4623 #ifdef TARGET_NR_lstat64 4624 case TARGET_NR_lstat64: 4625 if (!(p = lock_user_string(arg1))) 4626 goto efault; 4627 ret = get_errno(lstat(path(p), &st)); 4628 unlock_user(p, arg1, 0); 4629 goto do_stat64; 4630 #endif 4631 #ifdef TARGET_NR_fstat64 4632 case TARGET_NR_fstat64: 4633 { 4634 ret = get_errno(fstat(arg1, &st)); 4635 do_stat64: 4636 if (!is_error(ret)) { 4637 #ifdef TARGET_ARM 4638 if (((CPUARMState *)cpu_env)->eabi) { 4639 struct target_eabi_stat64 *target_st; 4640 4641 if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0)) 4642 goto efault; 4643 memset(target_st, 0, sizeof(struct target_eabi_stat64)); 4644 __put_user(st.st_dev, &target_st->st_dev); 4645 __put_user(st.st_ino, &target_st->st_ino); 4646 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO 4647 __put_user(st.st_ino, &target_st->__st_ino); 4648 #endif 4649 __put_user(st.st_mode, &target_st->st_mode); 4650 __put_user(st.st_nlink, &target_st->st_nlink); 4651 __put_user(st.st_uid, &target_st->st_uid); 4652 __put_user(st.st_gid, &target_st->st_gid); 4653 __put_user(st.st_rdev, &target_st->st_rdev); 4654 __put_user(st.st_size, &target_st->st_size); 4655 __put_user(st.st_blksize, &target_st->st_blksize); 4656 __put_user(st.st_blocks, &target_st->st_blocks); 4657 __put_user(st.st_atime, &target_st->target_st_atime); 4658 __put_user(st.st_mtime, &target_st->target_st_mtime); 4659 __put_user(st.st_ctime, &target_st->target_st_ctime); 4660 unlock_user_struct(target_st, arg2, 1); 4661 } else 4662 #endif 4663 { 4664 struct target_stat64 *target_st; 4665 4666 if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0)) 4667 goto efault; 4668 memset(target_st, 0, sizeof(struct target_stat64)); 4669 __put_user(st.st_dev, &target_st->st_dev); 4670 __put_user(st.st_ino, &target_st->st_ino); 4671 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO 4672 __put_user(st.st_ino, &target_st->__st_ino); 4673 #endif 4674 __put_user(st.st_mode, &target_st->st_mode); 4675 __put_user(st.st_nlink, &target_st->st_nlink); 4676 __put_user(st.st_uid, &target_st->st_uid); 4677 __put_user(st.st_gid, &target_st->st_gid); 4678 __put_user(st.st_rdev, &target_st->st_rdev); 4679 /* XXX: better use of kernel struct */ 4680 __put_user(st.st_size, &target_st->st_size); 4681 __put_user(st.st_blksize, &target_st->st_blksize); 4682 __put_user(st.st_blocks, &target_st->st_blocks); 4683 __put_user(st.st_atime, &target_st->target_st_atime); 4684 __put_user(st.st_mtime, &target_st->target_st_mtime); 4685 __put_user(st.st_ctime, &target_st->target_st_ctime); 4686 unlock_user_struct(target_st, arg2, 1); 4687 } 4688 } 4689 } 4690 break; 4691 #endif 4692 #ifdef USE_UID16 4693 case TARGET_NR_lchown: 4694 if (!(p = lock_user_string(arg1))) 4695 goto efault; 4696 ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3))); 4697 unlock_user(p, arg1, 0); 4698 break; 4699 case TARGET_NR_getuid: 4700 ret = get_errno(high2lowuid(getuid())); 4701 break; 4702 case TARGET_NR_getgid: 4703 ret = get_errno(high2lowgid(getgid())); 4704 break; 4705 case TARGET_NR_geteuid: 4706 ret = get_errno(high2lowuid(geteuid())); 4707 break; 4708 case TARGET_NR_getegid: 4709 ret = get_errno(high2lowgid(getegid())); 4710 break; 4711 case TARGET_NR_setreuid: 4712 ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2))); 4713 break; 4714 case TARGET_NR_setregid: 4715 ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2))); 4716 break; 4717 case TARGET_NR_getgroups: 4718 { 4719 int gidsetsize = arg1; 4720 uint16_t *target_grouplist; 4721 gid_t *grouplist; 4722 int i; 4723 4724 grouplist = alloca(gidsetsize * sizeof(gid_t)); 4725 ret = get_errno(getgroups(gidsetsize, grouplist)); 4726 if (!is_error(ret)) { 4727 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 2, 0); 4728 if (!target_grouplist) 4729 goto efault; 4730 for(i = 0;i < gidsetsize; i++) 4731 target_grouplist[i] = tswap16(grouplist[i]); 4732 unlock_user(target_grouplist, arg2, gidsetsize * 2); 4733 } 4734 } 4735 break; 4736 case TARGET_NR_setgroups: 4737 { 4738 int gidsetsize = arg1; 4739 uint16_t *target_grouplist; 4740 gid_t *grouplist; 4741 int i; 4742 4743 grouplist = alloca(gidsetsize * sizeof(gid_t)); 4744 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 2, 1); 4745 if (!target_grouplist) { 4746 ret = -TARGET_EFAULT; 4747 goto fail; 4748 } 4749 for(i = 0;i < gidsetsize; i++) 4750 grouplist[i] = tswap16(target_grouplist[i]); 4751 unlock_user(target_grouplist, arg2, 0); 4752 ret = get_errno(setgroups(gidsetsize, grouplist)); 4753 } 4754 break; 4755 case TARGET_NR_fchown: 4756 ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3))); 4757 break; 4758 #if defined(TARGET_NR_fchownat) && defined(__NR_fchownat) 4759 case TARGET_NR_fchownat: 4760 if (!(p = lock_user_string(arg2))) 4761 goto efault; 4762 ret = get_errno(sys_fchownat(arg1, p, low2highuid(arg3), low2highgid(arg4), arg5)); 4763 unlock_user(p, arg2, 0); 4764 break; 4765 #endif 4766 #ifdef TARGET_NR_setresuid 4767 case TARGET_NR_setresuid: 4768 ret = get_errno(setresuid(low2highuid(arg1), 4769 low2highuid(arg2), 4770 low2highuid(arg3))); 4771 break; 4772 #endif 4773 #ifdef TARGET_NR_getresuid 4774 case TARGET_NR_getresuid: 4775 { 4776 uid_t ruid, euid, suid; 4777 ret = get_errno(getresuid(&ruid, &euid, &suid)); 4778 if (!is_error(ret)) { 4779 tput16(arg1, tswap16(high2lowuid(ruid))); 4780 tput16(arg2, tswap16(high2lowuid(euid))); 4781 tput16(arg3, tswap16(high2lowuid(suid))); 4782 } 4783 } 4784 break; 4785 #endif 4786 #ifdef TARGET_NR_getresgid 4787 case TARGET_NR_setresgid: 4788 ret = get_errno(setresgid(low2highgid(arg1), 4789 low2highgid(arg2), 4790 low2highgid(arg3))); 4791 break; 4792 #endif 4793 #ifdef TARGET_NR_getresgid 4794 case TARGET_NR_getresgid: 4795 { 4796 gid_t rgid, egid, sgid; 4797 ret = get_errno(getresgid(&rgid, &egid, &sgid)); 4798 if (!is_error(ret)) { 4799 tput16(arg1, tswap16(high2lowgid(rgid))); 4800 tput16(arg2, tswap16(high2lowgid(egid))); 4801 tput16(arg3, tswap16(high2lowgid(sgid))); 4802 } 4803 } 4804 break; 4805 #endif 4806 case TARGET_NR_chown: 4807 if (!(p = lock_user_string(arg1))) 4808 goto efault; 4809 ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3))); 4810 unlock_user(p, arg1, 0); 4811 break; 4812 case TARGET_NR_setuid: 4813 ret = get_errno(setuid(low2highuid(arg1))); 4814 break; 4815 case TARGET_NR_setgid: 4816 ret = get_errno(setgid(low2highgid(arg1))); 4817 break; 4818 case TARGET_NR_setfsuid: 4819 ret = get_errno(setfsuid(arg1)); 4820 break; 4821 case TARGET_NR_setfsgid: 4822 ret = get_errno(setfsgid(arg1)); 4823 break; 4824 #endif /* USE_UID16 */ 4825 4826 #ifdef TARGET_NR_lchown32 4827 case TARGET_NR_lchown32: 4828 if (!(p = lock_user_string(arg1))) 4829 goto efault; 4830 ret = get_errno(lchown(p, arg2, arg3)); 4831 unlock_user(p, arg1, 0); 4832 break; 4833 #endif 4834 #ifdef TARGET_NR_getuid32 4835 case TARGET_NR_getuid32: 4836 ret = get_errno(getuid()); 4837 break; 4838 #endif 4839 #ifdef TARGET_NR_getgid32 4840 case TARGET_NR_getgid32: 4841 ret = get_errno(getgid()); 4842 break; 4843 #endif 4844 #ifdef TARGET_NR_geteuid32 4845 case TARGET_NR_geteuid32: 4846 ret = get_errno(geteuid()); 4847 break; 4848 #endif 4849 #ifdef TARGET_NR_getegid32 4850 case TARGET_NR_getegid32: 4851 ret = get_errno(getegid()); 4852 break; 4853 #endif 4854 #ifdef TARGET_NR_setreuid32 4855 case TARGET_NR_setreuid32: 4856 ret = get_errno(setreuid(arg1, arg2)); 4857 break; 4858 #endif 4859 #ifdef TARGET_NR_setregid32 4860 case TARGET_NR_setregid32: 4861 ret = get_errno(setregid(arg1, arg2)); 4862 break; 4863 #endif 4864 #ifdef TARGET_NR_getgroups32 4865 case TARGET_NR_getgroups32: 4866 { 4867 int gidsetsize = arg1; 4868 uint32_t *target_grouplist; 4869 gid_t *grouplist; 4870 int i; 4871 4872 grouplist = alloca(gidsetsize * sizeof(gid_t)); 4873 ret = get_errno(getgroups(gidsetsize, grouplist)); 4874 if (!is_error(ret)) { 4875 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 4, 0); 4876 if (!target_grouplist) { 4877 ret = -TARGET_EFAULT; 4878 goto fail; 4879 } 4880 for(i = 0;i < gidsetsize; i++) 4881 target_grouplist[i] = tswap32(grouplist[i]); 4882 unlock_user(target_grouplist, arg2, gidsetsize * 4); 4883 } 4884 } 4885 break; 4886 #endif 4887 #ifdef TARGET_NR_setgroups32 4888 case TARGET_NR_setgroups32: 4889 { 4890 int gidsetsize = arg1; 4891 uint32_t *target_grouplist; 4892 gid_t *grouplist; 4893 int i; 4894 4895 grouplist = alloca(gidsetsize * sizeof(gid_t)); 4896 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 4, 1); 4897 if (!target_grouplist) { 4898 ret = -TARGET_EFAULT; 4899 goto fail; 4900 } 4901 for(i = 0;i < gidsetsize; i++) 4902 grouplist[i] = tswap32(target_grouplist[i]); 4903 unlock_user(target_grouplist, arg2, 0); 4904 ret = get_errno(setgroups(gidsetsize, grouplist)); 4905 } 4906 break; 4907 #endif 4908 #ifdef TARGET_NR_fchown32 4909 case TARGET_NR_fchown32: 4910 ret = get_errno(fchown(arg1, arg2, arg3)); 4911 break; 4912 #endif 4913 #ifdef TARGET_NR_setresuid32 4914 case TARGET_NR_setresuid32: 4915 ret = get_errno(setresuid(arg1, arg2, arg3)); 4916 break; 4917 #endif 4918 #ifdef TARGET_NR_getresuid32 4919 case TARGET_NR_getresuid32: 4920 { 4921 uid_t ruid, euid, suid; 4922 ret = get_errno(getresuid(&ruid, &euid, &suid)); 4923 if (!is_error(ret)) { 4924 tput32(arg1, tswap32(ruid)); 4925 tput32(arg2, tswap32(euid)); 4926 tput32(arg3, tswap32(suid)); 4927 } 4928 } 4929 break; 4930 #endif 4931 #ifdef TARGET_NR_setresgid32 4932 case TARGET_NR_setresgid32: 4933 ret = get_errno(setresgid(arg1, arg2, arg3)); 4934 break; 4935 #endif 4936 #ifdef TARGET_NR_getresgid32 4937 case TARGET_NR_getresgid32: 4938 { 4939 gid_t rgid, egid, sgid; 4940 ret = get_errno(getresgid(&rgid, &egid, &sgid)); 4941 if (!is_error(ret)) { 4942 tput32(arg1, tswap32(rgid)); 4943 tput32(arg2, tswap32(egid)); 4944 tput32(arg3, tswap32(sgid)); 4945 } 4946 } 4947 break; 4948 #endif 4949 #ifdef TARGET_NR_chown32 4950 case TARGET_NR_chown32: 4951 if (!(p = lock_user_string(arg1))) 4952 goto efault; 4953 ret = get_errno(chown(p, arg2, arg3)); 4954 unlock_user(p, arg1, 0); 4955 break; 4956 #endif 4957 #ifdef TARGET_NR_setuid32 4958 case TARGET_NR_setuid32: 4959 ret = get_errno(setuid(arg1)); 4960 break; 4961 #endif 4962 #ifdef TARGET_NR_setgid32 4963 case TARGET_NR_setgid32: 4964 ret = get_errno(setgid(arg1)); 4965 break; 4966 #endif 4967 #ifdef TARGET_NR_setfsuid32 4968 case TARGET_NR_setfsuid32: 4969 ret = get_errno(setfsuid(arg1)); 4970 break; 4971 #endif 4972 #ifdef TARGET_NR_setfsgid32 4973 case TARGET_NR_setfsgid32: 4974 ret = get_errno(setfsgid(arg1)); 4975 break; 4976 #endif 4977 4978 case TARGET_NR_pivot_root: 4979 goto unimplemented; 4980 #ifdef TARGET_NR_mincore 4981 case TARGET_NR_mincore: 4982 goto unimplemented; 4983 #endif 4984 #ifdef TARGET_NR_madvise 4985 case TARGET_NR_madvise: 4986 /* A straight passthrough may not be safe because qemu sometimes 4987 turns private flie-backed mappings into anonymous mappings. 4988 This will break MADV_DONTNEED. 4989 This is a hint, so ignoring and returning success is ok. */ 4990 ret = get_errno(0); 4991 break; 4992 #endif 4993 #if TARGET_ABI_BITS == 32 4994 case TARGET_NR_fcntl64: 4995 { 4996 int cmd; 4997 struct flock64 fl; 4998 struct target_flock64 *target_fl; 4999 #ifdef TARGET_ARM 5000 struct target_eabi_flock64 *target_efl; 5001 #endif 5002 5003 switch(arg2){ 5004 case TARGET_F_GETLK64: 5005 cmd = F_GETLK64; 5006 break; 5007 case TARGET_F_SETLK64: 5008 cmd = F_SETLK64; 5009 break; 5010 case TARGET_F_SETLKW64: 5011 cmd = F_SETLK64; 5012 break; 5013 default: 5014 cmd = arg2; 5015 break; 5016 } 5017 5018 switch(arg2) { 5019 case TARGET_F_GETLK64: 5020 #ifdef TARGET_ARM 5021 if (((CPUARMState *)cpu_env)->eabi) { 5022 if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1)) 5023 goto efault; 5024 fl.l_type = tswap16(target_efl->l_type); 5025 fl.l_whence = tswap16(target_efl->l_whence); 5026 fl.l_start = tswap64(target_efl->l_start); 5027 fl.l_len = tswap64(target_efl->l_len); 5028 fl.l_pid = tswapl(target_efl->l_pid); 5029 unlock_user_struct(target_efl, arg3, 0); 5030 } else 5031 #endif 5032 { 5033 if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1)) 5034 goto efault; 5035 fl.l_type = tswap16(target_fl->l_type); 5036 fl.l_whence = tswap16(target_fl->l_whence); 5037 fl.l_start = tswap64(target_fl->l_start); 5038 fl.l_len = tswap64(target_fl->l_len); 5039 fl.l_pid = tswapl(target_fl->l_pid); 5040 unlock_user_struct(target_fl, arg3, 0); 5041 } 5042 ret = get_errno(fcntl(arg1, cmd, &fl)); 5043 if (ret == 0) { 5044 #ifdef TARGET_ARM 5045 if (((CPUARMState *)cpu_env)->eabi) { 5046 if (!lock_user_struct(VERIFY_WRITE, target_efl, arg3, 0)) 5047 goto efault; 5048 target_efl->l_type = tswap16(fl.l_type); 5049 target_efl->l_whence = tswap16(fl.l_whence); 5050 target_efl->l_start = tswap64(fl.l_start); 5051 target_efl->l_len = tswap64(fl.l_len); 5052 target_efl->l_pid = tswapl(fl.l_pid); 5053 unlock_user_struct(target_efl, arg3, 1); 5054 } else 5055 #endif 5056 { 5057 if (!lock_user_struct(VERIFY_WRITE, target_fl, arg3, 0)) 5058 goto efault; 5059 target_fl->l_type = tswap16(fl.l_type); 5060 target_fl->l_whence = tswap16(fl.l_whence); 5061 target_fl->l_start = tswap64(fl.l_start); 5062 target_fl->l_len = tswap64(fl.l_len); 5063 target_fl->l_pid = tswapl(fl.l_pid); 5064 unlock_user_struct(target_fl, arg3, 1); 5065 } 5066 } 5067 break; 5068 5069 case TARGET_F_SETLK64: 5070 case TARGET_F_SETLKW64: 5071 #ifdef TARGET_ARM 5072 if (((CPUARMState *)cpu_env)->eabi) { 5073 if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1)) 5074 goto efault; 5075 fl.l_type = tswap16(target_efl->l_type); 5076 fl.l_whence = tswap16(target_efl->l_whence); 5077 fl.l_start = tswap64(target_efl->l_start); 5078 fl.l_len = tswap64(target_efl->l_len); 5079 fl.l_pid = tswapl(target_efl->l_pid); 5080 unlock_user_struct(target_efl, arg3, 0); 5081 } else 5082 #endif 5083 { 5084 if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1)) 5085 goto efault; 5086 fl.l_type = tswap16(target_fl->l_type); 5087 fl.l_whence = tswap16(target_fl->l_whence); 5088 fl.l_start = tswap64(target_fl->l_start); 5089 fl.l_len = tswap64(target_fl->l_len); 5090 fl.l_pid = tswapl(target_fl->l_pid); 5091 unlock_user_struct(target_fl, arg3, 0); 5092 } 5093 ret = get_errno(fcntl(arg1, cmd, &fl)); 5094 break; 5095 default: 5096 ret = do_fcntl(arg1, cmd, arg3); 5097 break; 5098 } 5099 break; 5100 } 5101 #endif 5102 #ifdef TARGET_NR_cacheflush 5103 case TARGET_NR_cacheflush: 5104 /* self-modifying code is handled automatically, so nothing needed */ 5105 ret = 0; 5106 break; 5107 #endif 5108 #ifdef TARGET_NR_security 5109 case TARGET_NR_security: 5110 goto unimplemented; 5111 #endif 5112 #ifdef TARGET_NR_getpagesize 5113 case TARGET_NR_getpagesize: 5114 ret = TARGET_PAGE_SIZE; 5115 break; 5116 #endif 5117 case TARGET_NR_gettid: 5118 ret = get_errno(gettid()); 5119 break; 5120 #ifdef TARGET_NR_readahead 5121 case TARGET_NR_readahead: 5122 goto unimplemented; 5123 #endif 5124 #ifdef TARGET_NR_setxattr 5125 case TARGET_NR_setxattr: 5126 case TARGET_NR_lsetxattr: 5127 case TARGET_NR_fsetxattr: 5128 case TARGET_NR_getxattr: 5129 case TARGET_NR_lgetxattr: 5130 case TARGET_NR_fgetxattr: 5131 case TARGET_NR_listxattr: 5132 case TARGET_NR_llistxattr: 5133 case TARGET_NR_flistxattr: 5134 case TARGET_NR_removexattr: 5135 case TARGET_NR_lremovexattr: 5136 case TARGET_NR_fremovexattr: 5137 goto unimplemented_nowarn; 5138 #endif 5139 #ifdef TARGET_NR_set_thread_area 5140 case TARGET_NR_set_thread_area: 5141 #ifdef TARGET_MIPS 5142 ((CPUMIPSState *) cpu_env)->tls_value = arg1; 5143 ret = 0; 5144 break; 5145 #else 5146 goto unimplemented_nowarn; 5147 #endif 5148 #endif 5149 #ifdef TARGET_NR_get_thread_area 5150 case TARGET_NR_get_thread_area: 5151 goto unimplemented_nowarn; 5152 #endif 5153 #ifdef TARGET_NR_getdomainname 5154 case TARGET_NR_getdomainname: 5155 goto unimplemented_nowarn; 5156 #endif 5157 5158 #ifdef TARGET_NR_clock_gettime 5159 case TARGET_NR_clock_gettime: 5160 { 5161 struct timespec ts; 5162 ret = get_errno(clock_gettime(arg1, &ts)); 5163 if (!is_error(ret)) { 5164 host_to_target_timespec(arg2, &ts); 5165 } 5166 break; 5167 } 5168 #endif 5169 #ifdef TARGET_NR_clock_getres 5170 case TARGET_NR_clock_getres: 5171 { 5172 struct timespec ts; 5173 ret = get_errno(clock_getres(arg1, &ts)); 5174 if (!is_error(ret)) { 5175 host_to_target_timespec(arg2, &ts); 5176 } 5177 break; 5178 } 5179 #endif 5180 5181 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address) 5182 case TARGET_NR_set_tid_address: 5183 ret = get_errno(set_tid_address((int *)g2h(arg1))); 5184 break; 5185 #endif 5186 5187 #if defined(TARGET_NR_tkill) && defined(__NR_tkill) 5188 case TARGET_NR_tkill: 5189 ret = get_errno(sys_tkill((int)arg1, (int)arg2)); 5190 break; 5191 #endif 5192 5193 #if defined(TARGET_NR_tgkill) && defined(__NR_tgkill) 5194 case TARGET_NR_tgkill: 5195 ret = get_errno(sys_tgkill((int)arg1, (int)arg2, (int)arg3)); 5196 break; 5197 #endif 5198 5199 #ifdef TARGET_NR_set_robust_list 5200 case TARGET_NR_set_robust_list: 5201 goto unimplemented_nowarn; 5202 #endif 5203 5204 #if defined(TARGET_NR_utimensat) && defined(__NR_utimensat) 5205 case TARGET_NR_utimensat: 5206 { 5207 struct timespec ts[2]; 5208 target_to_host_timespec(ts, arg3); 5209 target_to_host_timespec(ts+1, arg3+sizeof(struct target_timespec)); 5210 if (!arg2) 5211 ret = get_errno(sys_utimensat(arg1, NULL, ts, arg4)); 5212 else { 5213 if (!(p = lock_user_string(arg2))) { 5214 ret = -TARGET_EFAULT; 5215 goto fail; 5216 } 5217 ret = get_errno(sys_utimensat(arg1, path(p), ts, arg4)); 5218 unlock_user(p, arg2, 0); 5219 } 5220 } 5221 break; 5222 #endif 5223 5224 default: 5225 unimplemented: 5226 gemu_log("qemu: Unsupported syscall: %d\n", num); 5227 #if defined(TARGET_NR_setxattr) || defined(TARGET_NR_get_thread_area) || defined(TARGET_NR_getdomainname) || defined(TARGET_NR_set_robust_list) 5228 unimplemented_nowarn: 5229 #endif 5230 ret = -TARGET_ENOSYS; 5231 break; 5232 } 5233 fail: 5234 #ifdef DEBUG 5235 gemu_log(" = %ld\n", ret); 5236 #endif 5237 if(do_strace) 5238 print_syscall_ret(num, ret); 5239 return ret; 5240 efault: 5241 ret = -TARGET_EFAULT; 5242 goto fail; 5243 } 5244