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