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 int 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 -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 /* write_ldt() returns host errnos */ 2253 static int write_ldt(CPUX86State *env, 2254 abi_ulong ptr, unsigned long bytecount, int oldmode) 2255 { 2256 struct target_modify_ldt_ldt_s ldt_info; 2257 struct target_modify_ldt_ldt_s *target_ldt_info; 2258 int seg_32bit, contents, read_exec_only, limit_in_pages; 2259 int seg_not_present, useable; 2260 uint32_t *lp, entry_1, entry_2; 2261 2262 if (bytecount != sizeof(ldt_info)) 2263 return -EINVAL; 2264 if (!lock_user_struct(VERIFY_READ, target_ldt_info, ptr, 1)) 2265 return -EFAULT; 2266 ldt_info.entry_number = tswap32(target_ldt_info->entry_number); 2267 ldt_info.base_addr = tswapl(target_ldt_info->base_addr); 2268 ldt_info.limit = tswap32(target_ldt_info->limit); 2269 ldt_info.flags = tswap32(target_ldt_info->flags); 2270 unlock_user_struct(target_ldt_info, ptr, 0); 2271 2272 if (ldt_info.entry_number >= TARGET_LDT_ENTRIES) 2273 return -EINVAL; 2274 seg_32bit = ldt_info.flags & 1; 2275 contents = (ldt_info.flags >> 1) & 3; 2276 read_exec_only = (ldt_info.flags >> 3) & 1; 2277 limit_in_pages = (ldt_info.flags >> 4) & 1; 2278 seg_not_present = (ldt_info.flags >> 5) & 1; 2279 useable = (ldt_info.flags >> 6) & 1; 2280 2281 if (contents == 3) { 2282 if (oldmode) 2283 return -EINVAL; 2284 if (seg_not_present == 0) 2285 return -EINVAL; 2286 } 2287 /* allocate the LDT */ 2288 if (!ldt_table) { 2289 ldt_table = malloc(TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE); 2290 if (!ldt_table) 2291 return -ENOMEM; 2292 memset(ldt_table, 0, TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE); 2293 env->ldt.base = h2g(ldt_table); 2294 env->ldt.limit = 0xffff; 2295 } 2296 2297 /* NOTE: same code as Linux kernel */ 2298 /* Allow LDTs to be cleared by the user. */ 2299 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) { 2300 if (oldmode || 2301 (contents == 0 && 2302 read_exec_only == 1 && 2303 seg_32bit == 0 && 2304 limit_in_pages == 0 && 2305 seg_not_present == 1 && 2306 useable == 0 )) { 2307 entry_1 = 0; 2308 entry_2 = 0; 2309 goto install; 2310 } 2311 } 2312 2313 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) | 2314 (ldt_info.limit & 0x0ffff); 2315 entry_2 = (ldt_info.base_addr & 0xff000000) | 2316 ((ldt_info.base_addr & 0x00ff0000) >> 16) | 2317 (ldt_info.limit & 0xf0000) | 2318 ((read_exec_only ^ 1) << 9) | 2319 (contents << 10) | 2320 ((seg_not_present ^ 1) << 15) | 2321 (seg_32bit << 22) | 2322 (limit_in_pages << 23) | 2323 0x7000; 2324 if (!oldmode) 2325 entry_2 |= (useable << 20); 2326 2327 /* Install the new entry ... */ 2328 install: 2329 lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3)); 2330 lp[0] = tswap32(entry_1); 2331 lp[1] = tswap32(entry_2); 2332 return 0; 2333 } 2334 2335 /* specific and weird i386 syscalls */ 2336 /* do_modify_ldt() returns host errnos (it is inconsistent with the 2337 other do_*() functions which return target errnos). */ 2338 int do_modify_ldt(CPUX86State *env, int func, abi_ulong ptr, unsigned long bytecount) 2339 { 2340 int ret = -ENOSYS; 2341 2342 switch (func) { 2343 case 0: 2344 ret = read_ldt(ptr, bytecount); 2345 break; 2346 case 1: 2347 ret = write_ldt(env, ptr, bytecount, 1); 2348 break; 2349 case 0x11: 2350 ret = write_ldt(env, ptr, bytecount, 0); 2351 break; 2352 } 2353 return ret; 2354 } 2355 2356 #endif /* defined(TARGET_I386) */ 2357 2358 /* this stack is the equivalent of the kernel stack associated with a 2359 thread/process */ 2360 #define NEW_STACK_SIZE 8192 2361 2362 static int clone_func(void *arg) 2363 { 2364 CPUState *env = arg; 2365 cpu_loop(env); 2366 /* never exits */ 2367 return 0; 2368 } 2369 2370 /* do_fork() Must return host values and target errnos (unlike most 2371 do_*() functions). */ 2372 int do_fork(CPUState *env, unsigned int flags, abi_ulong newsp) 2373 { 2374 int ret; 2375 TaskState *ts; 2376 uint8_t *new_stack; 2377 CPUState *new_env; 2378 2379 if (flags & CLONE_VM) { 2380 ts = malloc(sizeof(TaskState) + NEW_STACK_SIZE); 2381 memset(ts, 0, sizeof(TaskState)); 2382 new_stack = ts->stack; 2383 ts->used = 1; 2384 /* add in task state list */ 2385 ts->next = first_task_state; 2386 first_task_state = ts; 2387 /* we create a new CPU instance. */ 2388 new_env = cpu_copy(env); 2389 #if defined(TARGET_I386) 2390 if (!newsp) 2391 newsp = env->regs[R_ESP]; 2392 new_env->regs[R_ESP] = newsp; 2393 new_env->regs[R_EAX] = 0; 2394 #elif defined(TARGET_ARM) 2395 if (!newsp) 2396 newsp = env->regs[13]; 2397 new_env->regs[13] = newsp; 2398 new_env->regs[0] = 0; 2399 #elif defined(TARGET_SPARC) 2400 if (!newsp) 2401 newsp = env->regwptr[22]; 2402 new_env->regwptr[22] = newsp; 2403 new_env->regwptr[0] = 0; 2404 /* XXXXX */ 2405 printf ("HELPME: %s:%d\n", __FILE__, __LINE__); 2406 #elif defined(TARGET_M68K) 2407 if (!newsp) 2408 newsp = env->aregs[7]; 2409 new_env->aregs[7] = newsp; 2410 new_env->dregs[0] = 0; 2411 /* ??? is this sufficient? */ 2412 #elif defined(TARGET_MIPS) 2413 if (!newsp) 2414 newsp = env->gpr[29][env->current_tc]; 2415 new_env->gpr[29][env->current_tc] = newsp; 2416 #elif defined(TARGET_PPC) 2417 if (!newsp) 2418 newsp = env->gpr[1]; 2419 new_env->gpr[1] = newsp; 2420 { 2421 int i; 2422 for (i = 7; i < 32; i++) 2423 new_env->gpr[i] = 0; 2424 } 2425 #elif defined(TARGET_SH4) 2426 if (!newsp) 2427 newsp = env->gregs[15]; 2428 new_env->gregs[15] = newsp; 2429 /* XXXXX */ 2430 #elif defined(TARGET_ALPHA) 2431 if (!newsp) 2432 newsp = env->ir[30]; 2433 new_env->ir[30] = newsp; 2434 /* ? */ 2435 { 2436 int i; 2437 for (i = 7; i < 30; i++) 2438 new_env->ir[i] = 0; 2439 } 2440 #elif defined(TARGET_CRIS) 2441 if (!newsp) 2442 newsp = env->regs[14]; 2443 new_env->regs[14] = newsp; 2444 #else 2445 #error unsupported target CPU 2446 #endif 2447 new_env->opaque = ts; 2448 #ifdef __ia64__ 2449 ret = __clone2(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env); 2450 #else 2451 ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env); 2452 #endif 2453 } else { 2454 /* if no CLONE_VM, we consider it is a fork */ 2455 if ((flags & ~CSIGNAL) != 0) 2456 return -EINVAL; 2457 ret = fork(); 2458 } 2459 return ret; 2460 } 2461 2462 static abi_long do_fcntl(int fd, int cmd, abi_ulong arg) 2463 { 2464 struct flock fl; 2465 struct target_flock *target_fl; 2466 struct flock64 fl64; 2467 struct target_flock64 *target_fl64; 2468 abi_long ret; 2469 2470 switch(cmd) { 2471 case TARGET_F_GETLK: 2472 if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1)) 2473 return -TARGET_EFAULT; 2474 fl.l_type = tswap16(target_fl->l_type); 2475 fl.l_whence = tswap16(target_fl->l_whence); 2476 fl.l_start = tswapl(target_fl->l_start); 2477 fl.l_len = tswapl(target_fl->l_len); 2478 fl.l_pid = tswapl(target_fl->l_pid); 2479 unlock_user_struct(target_fl, arg, 0); 2480 ret = fcntl(fd, cmd, &fl); 2481 if (ret == 0) { 2482 if (!lock_user_struct(VERIFY_WRITE, target_fl, arg, 0)) 2483 return -TARGET_EFAULT; 2484 target_fl->l_type = tswap16(fl.l_type); 2485 target_fl->l_whence = tswap16(fl.l_whence); 2486 target_fl->l_start = tswapl(fl.l_start); 2487 target_fl->l_len = tswapl(fl.l_len); 2488 target_fl->l_pid = tswapl(fl.l_pid); 2489 unlock_user_struct(target_fl, arg, 1); 2490 } 2491 break; 2492 2493 case TARGET_F_SETLK: 2494 case TARGET_F_SETLKW: 2495 if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1)) 2496 return -TARGET_EFAULT; 2497 fl.l_type = tswap16(target_fl->l_type); 2498 fl.l_whence = tswap16(target_fl->l_whence); 2499 fl.l_start = tswapl(target_fl->l_start); 2500 fl.l_len = tswapl(target_fl->l_len); 2501 fl.l_pid = tswapl(target_fl->l_pid); 2502 unlock_user_struct(target_fl, arg, 0); 2503 ret = fcntl(fd, cmd, &fl); 2504 break; 2505 2506 case TARGET_F_GETLK64: 2507 if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1)) 2508 return -TARGET_EFAULT; 2509 fl64.l_type = tswap16(target_fl64->l_type) >> 1; 2510 fl64.l_whence = tswap16(target_fl64->l_whence); 2511 fl64.l_start = tswapl(target_fl64->l_start); 2512 fl64.l_len = tswapl(target_fl64->l_len); 2513 fl64.l_pid = tswap16(target_fl64->l_pid); 2514 unlock_user_struct(target_fl64, arg, 0); 2515 ret = fcntl(fd, cmd >> 1, &fl64); 2516 if (ret == 0) { 2517 if (!lock_user_struct(VERIFY_WRITE, target_fl64, arg, 0)) 2518 return -TARGET_EFAULT; 2519 target_fl64->l_type = tswap16(fl64.l_type) >> 1; 2520 target_fl64->l_whence = tswap16(fl64.l_whence); 2521 target_fl64->l_start = tswapl(fl64.l_start); 2522 target_fl64->l_len = tswapl(fl64.l_len); 2523 target_fl64->l_pid = tswapl(fl64.l_pid); 2524 unlock_user_struct(target_fl64, arg, 1); 2525 } 2526 break; 2527 case TARGET_F_SETLK64: 2528 case TARGET_F_SETLKW64: 2529 if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1)) 2530 return -TARGET_EFAULT; 2531 fl64.l_type = tswap16(target_fl64->l_type) >> 1; 2532 fl64.l_whence = tswap16(target_fl64->l_whence); 2533 fl64.l_start = tswapl(target_fl64->l_start); 2534 fl64.l_len = tswapl(target_fl64->l_len); 2535 fl64.l_pid = tswap16(target_fl64->l_pid); 2536 unlock_user_struct(target_fl64, arg, 0); 2537 ret = fcntl(fd, cmd >> 1, &fl64); 2538 break; 2539 2540 case F_GETFL: 2541 ret = fcntl(fd, cmd, arg); 2542 ret = host_to_target_bitmask(ret, fcntl_flags_tbl); 2543 break; 2544 2545 case F_SETFL: 2546 ret = fcntl(fd, cmd, target_to_host_bitmask(arg, fcntl_flags_tbl)); 2547 break; 2548 2549 default: 2550 ret = fcntl(fd, cmd, arg); 2551 break; 2552 } 2553 return ret; 2554 } 2555 2556 #ifdef USE_UID16 2557 2558 static inline int high2lowuid(int uid) 2559 { 2560 if (uid > 65535) 2561 return 65534; 2562 else 2563 return uid; 2564 } 2565 2566 static inline int high2lowgid(int gid) 2567 { 2568 if (gid > 65535) 2569 return 65534; 2570 else 2571 return gid; 2572 } 2573 2574 static inline int low2highuid(int uid) 2575 { 2576 if ((int16_t)uid == -1) 2577 return -1; 2578 else 2579 return uid; 2580 } 2581 2582 static inline int low2highgid(int gid) 2583 { 2584 if ((int16_t)gid == -1) 2585 return -1; 2586 else 2587 return gid; 2588 } 2589 2590 #endif /* USE_UID16 */ 2591 2592 void syscall_init(void) 2593 { 2594 IOCTLEntry *ie; 2595 const argtype *arg_type; 2596 int size; 2597 int i; 2598 2599 #define STRUCT(name, list...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def); 2600 #define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def); 2601 #include "syscall_types.h" 2602 #undef STRUCT 2603 #undef STRUCT_SPECIAL 2604 2605 /* we patch the ioctl size if necessary. We rely on the fact that 2606 no ioctl has all the bits at '1' in the size field */ 2607 ie = ioctl_entries; 2608 while (ie->target_cmd != 0) { 2609 if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) == 2610 TARGET_IOC_SIZEMASK) { 2611 arg_type = ie->arg_type; 2612 if (arg_type[0] != TYPE_PTR) { 2613 fprintf(stderr, "cannot patch size for ioctl 0x%x\n", 2614 ie->target_cmd); 2615 exit(1); 2616 } 2617 arg_type++; 2618 size = thunk_type_size(arg_type, 0); 2619 ie->target_cmd = (ie->target_cmd & 2620 ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) | 2621 (size << TARGET_IOC_SIZESHIFT); 2622 } 2623 2624 /* Build target_to_host_errno_table[] table from 2625 * host_to_target_errno_table[]. */ 2626 for (i=0; i < ERRNO_TABLE_SIZE; i++) 2627 target_to_host_errno_table[host_to_target_errno_table[i]] = i; 2628 2629 /* automatic consistency check if same arch */ 2630 #if defined(__i386__) && defined(TARGET_I386) 2631 if (ie->target_cmd != ie->host_cmd) { 2632 fprintf(stderr, "ERROR: ioctl: target=0x%x host=0x%x\n", 2633 ie->target_cmd, ie->host_cmd); 2634 } 2635 #endif 2636 ie++; 2637 } 2638 } 2639 2640 #if TARGET_ABI_BITS == 32 2641 static inline uint64_t target_offset64(uint32_t word0, uint32_t word1) 2642 { 2643 #ifdef TARGET_WORDS_BIG_ENDIAN 2644 return ((uint64_t)word0 << 32) | word1; 2645 #else 2646 return ((uint64_t)word1 << 32) | word0; 2647 #endif 2648 } 2649 #else /* TARGET_ABI_BITS == 32 */ 2650 static inline uint64_t target_offset64(uint64_t word0, uint64_t word1) 2651 { 2652 return word0; 2653 } 2654 #endif /* TARGET_ABI_BITS != 32 */ 2655 2656 #ifdef TARGET_NR_truncate64 2657 static inline abi_long target_truncate64(void *cpu_env, const char *arg1, 2658 abi_long arg2, 2659 abi_long arg3, 2660 abi_long arg4) 2661 { 2662 #ifdef TARGET_ARM 2663 if (((CPUARMState *)cpu_env)->eabi) 2664 { 2665 arg2 = arg3; 2666 arg3 = arg4; 2667 } 2668 #endif 2669 return get_errno(truncate64(arg1, target_offset64(arg2, arg3))); 2670 } 2671 #endif 2672 2673 #ifdef TARGET_NR_ftruncate64 2674 static inline abi_long target_ftruncate64(void *cpu_env, abi_long arg1, 2675 abi_long arg2, 2676 abi_long arg3, 2677 abi_long arg4) 2678 { 2679 #ifdef TARGET_ARM 2680 if (((CPUARMState *)cpu_env)->eabi) 2681 { 2682 arg2 = arg3; 2683 arg3 = arg4; 2684 } 2685 #endif 2686 return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3))); 2687 } 2688 #endif 2689 2690 static inline abi_long target_to_host_timespec(struct timespec *host_ts, 2691 abi_ulong target_addr) 2692 { 2693 struct target_timespec *target_ts; 2694 2695 if (!lock_user_struct(VERIFY_READ, target_ts, target_addr, 1)) 2696 return -TARGET_EFAULT; 2697 host_ts->tv_sec = tswapl(target_ts->tv_sec); 2698 host_ts->tv_nsec = tswapl(target_ts->tv_nsec); 2699 unlock_user_struct(target_ts, target_addr, 0); 2700 } 2701 2702 static inline abi_long host_to_target_timespec(abi_ulong target_addr, 2703 struct timespec *host_ts) 2704 { 2705 struct target_timespec *target_ts; 2706 2707 if (!lock_user_struct(VERIFY_WRITE, target_ts, target_addr, 0)) 2708 return -TARGET_EFAULT; 2709 target_ts->tv_sec = tswapl(host_ts->tv_sec); 2710 target_ts->tv_nsec = tswapl(host_ts->tv_nsec); 2711 unlock_user_struct(target_ts, target_addr, 1); 2712 } 2713 2714 /* do_syscall() should always have a single exit point at the end so 2715 that actions, such as logging of syscall results, can be performed. 2716 All errnos that do_syscall() returns must be -TARGET_<errcode>. */ 2717 abi_long do_syscall(void *cpu_env, int num, abi_long arg1, 2718 abi_long arg2, abi_long arg3, abi_long arg4, 2719 abi_long arg5, abi_long arg6) 2720 { 2721 abi_long ret; 2722 struct stat st; 2723 struct statfs stfs; 2724 void *p; 2725 2726 #ifdef DEBUG 2727 gemu_log("syscall %d", num); 2728 #endif 2729 if(do_strace) 2730 print_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6); 2731 2732 switch(num) { 2733 case TARGET_NR_exit: 2734 #ifdef HAVE_GPROF 2735 _mcleanup(); 2736 #endif 2737 gdb_exit(cpu_env, arg1); 2738 /* XXX: should free thread stack and CPU env */ 2739 _exit(arg1); 2740 ret = 0; /* avoid warning */ 2741 break; 2742 case TARGET_NR_read: 2743 page_unprotect_range(arg2, arg3); 2744 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0))) 2745 goto efault; 2746 ret = get_errno(read(arg1, p, arg3)); 2747 unlock_user(p, arg2, ret); 2748 break; 2749 case TARGET_NR_write: 2750 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1))) 2751 goto efault; 2752 ret = get_errno(write(arg1, p, arg3)); 2753 unlock_user(p, arg2, 0); 2754 break; 2755 case TARGET_NR_open: 2756 if (!(p = lock_user_string(arg1))) { 2757 return -TARGET_EFAULT; 2758 goto fail; 2759 } 2760 ret = get_errno(open(path(p), 2761 target_to_host_bitmask(arg2, fcntl_flags_tbl), 2762 arg3)); 2763 unlock_user(p, arg1, 0); 2764 break; 2765 #if defined(TARGET_NR_openat) && defined(__NR_openat) 2766 case TARGET_NR_openat: 2767 if (!(p = lock_user_string(arg2))) 2768 goto efault; 2769 ret = get_errno(sys_openat(arg1, 2770 path(p), 2771 target_to_host_bitmask(arg3, fcntl_flags_tbl), 2772 arg4)); 2773 unlock_user(p, arg2, 0); 2774 break; 2775 #endif 2776 case TARGET_NR_close: 2777 ret = get_errno(close(arg1)); 2778 break; 2779 case TARGET_NR_brk: 2780 ret = do_brk(arg1); 2781 break; 2782 case TARGET_NR_fork: 2783 ret = get_errno(do_fork(cpu_env, SIGCHLD, 0)); 2784 break; 2785 #ifdef TARGET_NR_waitpid 2786 case TARGET_NR_waitpid: 2787 { 2788 int status; 2789 ret = get_errno(waitpid(arg1, &status, arg3)); 2790 if (!is_error(ret) && arg2) 2791 tput32(arg2, status); 2792 } 2793 break; 2794 #endif 2795 #ifdef TARGET_NR_creat /* not on alpha */ 2796 case TARGET_NR_creat: 2797 if (!(p = lock_user_string(arg1))) 2798 goto efault; 2799 ret = get_errno(creat(p, arg2)); 2800 unlock_user(p, arg1, 0); 2801 break; 2802 #endif 2803 case TARGET_NR_link: 2804 { 2805 void * p2; 2806 p = lock_user_string(arg1); 2807 p2 = lock_user_string(arg2); 2808 if (!p || !p2) 2809 ret = -TARGET_EFAULT; 2810 else 2811 ret = get_errno(link(p, p2)); 2812 unlock_user(p2, arg2, 0); 2813 unlock_user(p, arg1, 0); 2814 } 2815 break; 2816 #if defined(TARGET_NR_linkat) && defined(__NR_linkat) 2817 case TARGET_NR_linkat: 2818 { 2819 void * p2 = NULL; 2820 if (!arg2 || !arg4) 2821 goto efault; 2822 p = lock_user_string(arg2); 2823 p2 = lock_user_string(arg4); 2824 if (!p || !p2) 2825 ret = -TARGET_EFAULT; 2826 else 2827 ret = get_errno(sys_linkat(arg1, p, arg3, p2, arg5)); 2828 unlock_user(p, arg2, 0); 2829 unlock_user(p2, arg4, 0); 2830 } 2831 break; 2832 #endif 2833 case TARGET_NR_unlink: 2834 if (!(p = lock_user_string(arg1))) 2835 goto efault; 2836 ret = get_errno(unlink(p)); 2837 unlock_user(p, arg1, 0); 2838 break; 2839 #if defined(TARGET_NR_unlinkat) && defined(__NR_unlinkat) 2840 case TARGET_NR_unlinkat: 2841 if (!(p = lock_user_string(arg2))) 2842 goto efault; 2843 ret = get_errno(sys_unlinkat(arg1, p, arg3)); 2844 unlock_user(p, arg2, 0); 2845 #endif 2846 case TARGET_NR_execve: 2847 { 2848 char **argp, **envp; 2849 int argc, envc; 2850 abi_ulong gp; 2851 abi_ulong guest_argp; 2852 abi_ulong guest_envp; 2853 abi_ulong addr; 2854 char **q; 2855 2856 argc = 0; 2857 guest_argp = arg2; 2858 for (gp = guest_argp; tgetl(gp); gp++) 2859 argc++; 2860 envc = 0; 2861 guest_envp = arg3; 2862 for (gp = guest_envp; tgetl(gp); gp++) 2863 envc++; 2864 2865 argp = alloca((argc + 1) * sizeof(void *)); 2866 envp = alloca((envc + 1) * sizeof(void *)); 2867 2868 for (gp = guest_argp, q = argp; ; 2869 gp += sizeof(abi_ulong), q++) { 2870 addr = tgetl(gp); 2871 if (!addr) 2872 break; 2873 if (!(*q = lock_user_string(addr))) { 2874 ret = -TARGET_EFAULT; 2875 goto execve_fail; 2876 } 2877 } 2878 *q = NULL; 2879 2880 for (gp = guest_envp, q = envp; ; 2881 gp += sizeof(abi_ulong), q++) { 2882 addr = tgetl(gp); 2883 if (!addr) 2884 break; 2885 if (!(*q = lock_user_string(addr))) { 2886 ret = -TARGET_EFAULT; 2887 goto execve_fail; 2888 } 2889 } 2890 *q = NULL; 2891 2892 if (!(p = lock_user_string(arg1))) { 2893 ret = -TARGET_EFAULT; 2894 goto execve_fail; 2895 } 2896 ret = get_errno(execve(p, argp, envp)); 2897 unlock_user(p, arg1, 0); 2898 2899 execve_fail: 2900 for (gp = guest_argp, q = argp; *q; 2901 gp += sizeof(abi_ulong), q++) { 2902 addr = tgetl(gp); 2903 unlock_user(*q, addr, 0); 2904 } 2905 for (gp = guest_envp, q = envp; *q; 2906 gp += sizeof(abi_ulong), q++) { 2907 addr = tgetl(gp); 2908 unlock_user(*q, addr, 0); 2909 } 2910 } 2911 break; 2912 case TARGET_NR_chdir: 2913 if (!(p = lock_user_string(arg1))) 2914 goto efault; 2915 ret = get_errno(chdir(p)); 2916 unlock_user(p, arg1, 0); 2917 break; 2918 #ifdef TARGET_NR_time 2919 case TARGET_NR_time: 2920 { 2921 time_t host_time; 2922 ret = get_errno(time(&host_time)); 2923 if (!is_error(ret) && arg1) 2924 tputl(arg1, host_time); 2925 } 2926 break; 2927 #endif 2928 case TARGET_NR_mknod: 2929 if (!(p = lock_user_string(arg1))) 2930 goto efault; 2931 ret = get_errno(mknod(p, arg2, arg3)); 2932 unlock_user(p, arg1, 0); 2933 break; 2934 #if defined(TARGET_NR_mknodat) && defined(__NR_mknodat) 2935 case TARGET_NR_mknodat: 2936 if (!(p = lock_user_string(arg2))) 2937 goto efault; 2938 ret = get_errno(sys_mknodat(arg1, p, arg3, arg4)); 2939 unlock_user(p, arg2, 0); 2940 break; 2941 #endif 2942 case TARGET_NR_chmod: 2943 if (!(p = lock_user_string(arg1))) 2944 goto efault; 2945 ret = get_errno(chmod(p, arg2)); 2946 unlock_user(p, arg1, 0); 2947 break; 2948 #ifdef TARGET_NR_break 2949 case TARGET_NR_break: 2950 goto unimplemented; 2951 #endif 2952 #ifdef TARGET_NR_oldstat 2953 case TARGET_NR_oldstat: 2954 goto unimplemented; 2955 #endif 2956 case TARGET_NR_lseek: 2957 ret = get_errno(lseek(arg1, arg2, arg3)); 2958 break; 2959 #ifdef TARGET_NR_getxpid 2960 case TARGET_NR_getxpid: 2961 #else 2962 case TARGET_NR_getpid: 2963 #endif 2964 ret = get_errno(getpid()); 2965 break; 2966 case TARGET_NR_mount: 2967 { 2968 /* need to look at the data field */ 2969 void *p2, *p3; 2970 p = lock_user_string(arg1); 2971 p2 = lock_user_string(arg2); 2972 p3 = lock_user_string(arg3); 2973 if (!p || !p2 || !p3) 2974 ret = -TARGET_EFAULT; 2975 else 2976 /* FIXME - arg5 should be locked, but it isn't clear how to 2977 * do that since it's not guaranteed to be a NULL-terminated 2978 * string. 2979 */ 2980 ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, g2h(arg5))); 2981 unlock_user(p, arg1, 0); 2982 unlock_user(p2, arg2, 0); 2983 unlock_user(p3, arg3, 0); 2984 break; 2985 } 2986 #ifdef TARGET_NR_umount 2987 case TARGET_NR_umount: 2988 if (!(p = lock_user_string(arg1))) 2989 goto efault; 2990 ret = get_errno(umount(p)); 2991 unlock_user(p, arg1, 0); 2992 break; 2993 #endif 2994 #ifdef TARGET_NR_stime /* not on alpha */ 2995 case TARGET_NR_stime: 2996 { 2997 time_t host_time; 2998 host_time = tgetl(arg1); 2999 ret = get_errno(stime(&host_time)); 3000 } 3001 break; 3002 #endif 3003 case TARGET_NR_ptrace: 3004 goto unimplemented; 3005 #ifdef TARGET_NR_alarm /* not on alpha */ 3006 case TARGET_NR_alarm: 3007 ret = alarm(arg1); 3008 break; 3009 #endif 3010 #ifdef TARGET_NR_oldfstat 3011 case TARGET_NR_oldfstat: 3012 goto unimplemented; 3013 #endif 3014 #ifdef TARGET_NR_pause /* not on alpha */ 3015 case TARGET_NR_pause: 3016 ret = get_errno(pause()); 3017 break; 3018 #endif 3019 #ifdef TARGET_NR_utime 3020 case TARGET_NR_utime: 3021 { 3022 struct utimbuf tbuf, *host_tbuf; 3023 struct target_utimbuf *target_tbuf; 3024 if (arg2) { 3025 if (!lock_user_struct(VERIFY_READ, target_tbuf, arg2, 1)) 3026 goto efault; 3027 tbuf.actime = tswapl(target_tbuf->actime); 3028 tbuf.modtime = tswapl(target_tbuf->modtime); 3029 unlock_user_struct(target_tbuf, arg2, 0); 3030 host_tbuf = &tbuf; 3031 } else { 3032 host_tbuf = NULL; 3033 } 3034 if (!(p = lock_user_string(arg1))) 3035 goto efault; 3036 ret = get_errno(utime(p, host_tbuf)); 3037 unlock_user(p, arg1, 0); 3038 } 3039 break; 3040 #endif 3041 case TARGET_NR_utimes: 3042 { 3043 struct timeval *tvp, tv[2]; 3044 if (arg2) { 3045 target_to_host_timeval(&tv[0], arg2); 3046 target_to_host_timeval(&tv[1], 3047 arg2 + sizeof (struct target_timeval)); 3048 tvp = tv; 3049 } else { 3050 tvp = NULL; 3051 } 3052 if (!(p = lock_user_string(arg1))) 3053 goto efault; 3054 ret = get_errno(utimes(p, tvp)); 3055 unlock_user(p, arg1, 0); 3056 } 3057 break; 3058 #ifdef TARGET_NR_stty 3059 case TARGET_NR_stty: 3060 goto unimplemented; 3061 #endif 3062 #ifdef TARGET_NR_gtty 3063 case TARGET_NR_gtty: 3064 goto unimplemented; 3065 #endif 3066 case TARGET_NR_access: 3067 if (!(p = lock_user_string(arg1))) 3068 goto efault; 3069 ret = get_errno(access(p, arg2)); 3070 unlock_user(p, arg1, 0); 3071 break; 3072 #if defined(TARGET_NR_faccessat) && defined(__NR_faccessat) 3073 case TARGET_NR_faccessat: 3074 if (!(p = lock_user_string(arg2))) 3075 goto efault; 3076 ret = get_errno(sys_faccessat(arg1, p, arg3, arg4)); 3077 unlock_user(p, arg2, 0); 3078 break; 3079 #endif 3080 #ifdef TARGET_NR_nice /* not on alpha */ 3081 case TARGET_NR_nice: 3082 ret = get_errno(nice(arg1)); 3083 break; 3084 #endif 3085 #ifdef TARGET_NR_ftime 3086 case TARGET_NR_ftime: 3087 goto unimplemented; 3088 #endif 3089 case TARGET_NR_sync: 3090 sync(); 3091 ret = 0; 3092 break; 3093 case TARGET_NR_kill: 3094 ret = get_errno(kill(arg1, arg2)); 3095 break; 3096 case TARGET_NR_rename: 3097 { 3098 void *p2; 3099 p = lock_user_string(arg1); 3100 p2 = lock_user_string(arg2); 3101 if (!p || !p2) 3102 ret = -TARGET_EFAULT; 3103 else 3104 ret = get_errno(rename(p, p2)); 3105 unlock_user(p2, arg2, 0); 3106 unlock_user(p, arg1, 0); 3107 } 3108 break; 3109 #if defined(TARGET_NR_renameat) && defined(__NR_renameat) 3110 case TARGET_NR_renameat: 3111 { 3112 void *p2; 3113 p = lock_user_string(arg2); 3114 p2 = lock_user_string(arg4); 3115 if (!p || !p2) 3116 ret = -TARGET_EFAULT; 3117 else 3118 ret = get_errno(sys_renameat(arg1, p, arg3, p2)); 3119 unlock_user(p2, arg4, 0); 3120 unlock_user(p, arg2, 0); 3121 } 3122 break; 3123 #endif 3124 case TARGET_NR_mkdir: 3125 if (!(p = lock_user_string(arg1))) 3126 goto efault; 3127 ret = get_errno(mkdir(p, arg2)); 3128 unlock_user(p, arg1, 0); 3129 break; 3130 #if defined(TARGET_NR_mkdirat) && defined(__NR_mkdirat) 3131 case TARGET_NR_mkdirat: 3132 if (!(p = lock_user_string(arg2))) 3133 goto efault; 3134 ret = get_errno(sys_mkdirat(arg1, p, arg3)); 3135 unlock_user(p, arg2, 0); 3136 break; 3137 #endif 3138 case TARGET_NR_rmdir: 3139 if (!(p = lock_user_string(arg1))) 3140 goto efault; 3141 ret = get_errno(rmdir(p)); 3142 unlock_user(p, arg1, 0); 3143 break; 3144 case TARGET_NR_dup: 3145 ret = get_errno(dup(arg1)); 3146 break; 3147 case TARGET_NR_pipe: 3148 { 3149 int host_pipe[2]; 3150 ret = get_errno(pipe(host_pipe)); 3151 if (!is_error(ret)) { 3152 #if defined(TARGET_MIPS) 3153 CPUMIPSState *env = (CPUMIPSState*)cpu_env; 3154 env->gpr[3][env->current_tc] = host_pipe[1]; 3155 ret = host_pipe[0]; 3156 #else 3157 tput32(arg1, host_pipe[0]); 3158 tput32(arg1 + 4, host_pipe[1]); 3159 #endif 3160 } 3161 } 3162 break; 3163 case TARGET_NR_times: 3164 { 3165 struct target_tms *tmsp; 3166 struct tms tms; 3167 ret = get_errno(times(&tms)); 3168 if (arg1) { 3169 tmsp = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_tms), 0); 3170 if (!tmsp) 3171 goto efault; 3172 tmsp->tms_utime = tswapl(host_to_target_clock_t(tms.tms_utime)); 3173 tmsp->tms_stime = tswapl(host_to_target_clock_t(tms.tms_stime)); 3174 tmsp->tms_cutime = tswapl(host_to_target_clock_t(tms.tms_cutime)); 3175 tmsp->tms_cstime = tswapl(host_to_target_clock_t(tms.tms_cstime)); 3176 } 3177 if (!is_error(ret)) 3178 ret = host_to_target_clock_t(ret); 3179 } 3180 break; 3181 #ifdef TARGET_NR_prof 3182 case TARGET_NR_prof: 3183 goto unimplemented; 3184 #endif 3185 #ifdef TARGET_NR_signal 3186 case TARGET_NR_signal: 3187 goto unimplemented; 3188 #endif 3189 case TARGET_NR_acct: 3190 if (!(p = lock_user_string(arg1))) 3191 goto efault; 3192 ret = get_errno(acct(path(p))); 3193 unlock_user(p, arg1, 0); 3194 break; 3195 #ifdef TARGET_NR_umount2 /* not on alpha */ 3196 case TARGET_NR_umount2: 3197 if (!(p = lock_user_string(arg1))) 3198 goto efault; 3199 ret = get_errno(umount2(p, arg2)); 3200 unlock_user(p, arg1, 0); 3201 break; 3202 #endif 3203 #ifdef TARGET_NR_lock 3204 case TARGET_NR_lock: 3205 goto unimplemented; 3206 #endif 3207 case TARGET_NR_ioctl: 3208 ret = do_ioctl(arg1, arg2, arg3); 3209 break; 3210 case TARGET_NR_fcntl: 3211 ret = get_errno(do_fcntl(arg1, arg2, arg3)); 3212 break; 3213 #ifdef TARGET_NR_mpx 3214 case TARGET_NR_mpx: 3215 goto unimplemented; 3216 #endif 3217 case TARGET_NR_setpgid: 3218 ret = get_errno(setpgid(arg1, arg2)); 3219 break; 3220 #ifdef TARGET_NR_ulimit 3221 case TARGET_NR_ulimit: 3222 goto unimplemented; 3223 #endif 3224 #ifdef TARGET_NR_oldolduname 3225 case TARGET_NR_oldolduname: 3226 goto unimplemented; 3227 #endif 3228 case TARGET_NR_umask: 3229 ret = get_errno(umask(arg1)); 3230 break; 3231 case TARGET_NR_chroot: 3232 if (!(p = lock_user_string(arg1))) 3233 goto efault; 3234 ret = get_errno(chroot(p)); 3235 unlock_user(p, arg1, 0); 3236 break; 3237 case TARGET_NR_ustat: 3238 goto unimplemented; 3239 case TARGET_NR_dup2: 3240 ret = get_errno(dup2(arg1, arg2)); 3241 break; 3242 #ifdef TARGET_NR_getppid /* not on alpha */ 3243 case TARGET_NR_getppid: 3244 ret = get_errno(getppid()); 3245 break; 3246 #endif 3247 case TARGET_NR_getpgrp: 3248 ret = get_errno(getpgrp()); 3249 break; 3250 case TARGET_NR_setsid: 3251 ret = get_errno(setsid()); 3252 break; 3253 #ifdef TARGET_NR_sigaction 3254 case TARGET_NR_sigaction: 3255 { 3256 #if !defined(TARGET_MIPS) 3257 struct target_old_sigaction *old_act; 3258 struct target_sigaction act, oact, *pact; 3259 if (arg2) { 3260 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1)) 3261 goto efault; 3262 act._sa_handler = old_act->_sa_handler; 3263 target_siginitset(&act.sa_mask, old_act->sa_mask); 3264 act.sa_flags = old_act->sa_flags; 3265 act.sa_restorer = old_act->sa_restorer; 3266 unlock_user_struct(old_act, arg2, 0); 3267 pact = &act; 3268 } else { 3269 pact = NULL; 3270 } 3271 ret = get_errno(do_sigaction(arg1, pact, &oact)); 3272 if (!is_error(ret) && arg3) { 3273 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0)) 3274 goto efault; 3275 old_act->_sa_handler = oact._sa_handler; 3276 old_act->sa_mask = oact.sa_mask.sig[0]; 3277 old_act->sa_flags = oact.sa_flags; 3278 old_act->sa_restorer = oact.sa_restorer; 3279 unlock_user_struct(old_act, arg3, 1); 3280 } 3281 #else 3282 struct target_sigaction act, oact, *pact, *old_act; 3283 3284 if (arg2) { 3285 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1)) 3286 goto efault; 3287 act._sa_handler = old_act->_sa_handler; 3288 target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]); 3289 act.sa_flags = old_act->sa_flags; 3290 unlock_user_struct(old_act, arg2, 0); 3291 pact = &act; 3292 } else { 3293 pact = NULL; 3294 } 3295 3296 ret = get_errno(do_sigaction(arg1, pact, &oact)); 3297 3298 if (!is_error(ret) && arg3) { 3299 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0)) 3300 goto efault; 3301 old_act->_sa_handler = oact._sa_handler; 3302 old_act->sa_flags = oact.sa_flags; 3303 old_act->sa_mask.sig[0] = oact.sa_mask.sig[0]; 3304 old_act->sa_mask.sig[1] = 0; 3305 old_act->sa_mask.sig[2] = 0; 3306 old_act->sa_mask.sig[3] = 0; 3307 unlock_user_struct(old_act, arg3, 1); 3308 } 3309 #endif 3310 } 3311 break; 3312 #endif 3313 case TARGET_NR_rt_sigaction: 3314 { 3315 struct target_sigaction *act; 3316 struct target_sigaction *oact; 3317 3318 if (arg2) { 3319 if (!lock_user_struct(VERIFY_READ, act, arg2, 1)) 3320 goto efault; 3321 } else 3322 act = NULL; 3323 if (arg3) { 3324 if (!lock_user_struct(VERIFY_WRITE, oact, arg3, 0)) { 3325 ret = -TARGET_EFAULT; 3326 goto rt_sigaction_fail; 3327 } 3328 } else 3329 oact = NULL; 3330 ret = get_errno(do_sigaction(arg1, act, oact)); 3331 rt_sigaction_fail: 3332 if (act) 3333 unlock_user_struct(act, arg2, 0); 3334 if (oact) 3335 unlock_user_struct(oact, arg3, 1); 3336 } 3337 break; 3338 #ifdef TARGET_NR_sgetmask /* not on alpha */ 3339 case TARGET_NR_sgetmask: 3340 { 3341 sigset_t cur_set; 3342 abi_ulong target_set; 3343 sigprocmask(0, NULL, &cur_set); 3344 host_to_target_old_sigset(&target_set, &cur_set); 3345 ret = target_set; 3346 } 3347 break; 3348 #endif 3349 #ifdef TARGET_NR_ssetmask /* not on alpha */ 3350 case TARGET_NR_ssetmask: 3351 { 3352 sigset_t set, oset, cur_set; 3353 abi_ulong target_set = arg1; 3354 sigprocmask(0, NULL, &cur_set); 3355 target_to_host_old_sigset(&set, &target_set); 3356 sigorset(&set, &set, &cur_set); 3357 sigprocmask(SIG_SETMASK, &set, &oset); 3358 host_to_target_old_sigset(&target_set, &oset); 3359 ret = target_set; 3360 } 3361 break; 3362 #endif 3363 #ifdef TARGET_NR_sigprocmask 3364 case TARGET_NR_sigprocmask: 3365 { 3366 int how = arg1; 3367 sigset_t set, oldset, *set_ptr; 3368 3369 if (arg2) { 3370 switch(how) { 3371 case TARGET_SIG_BLOCK: 3372 how = SIG_BLOCK; 3373 break; 3374 case TARGET_SIG_UNBLOCK: 3375 how = SIG_UNBLOCK; 3376 break; 3377 case TARGET_SIG_SETMASK: 3378 how = SIG_SETMASK; 3379 break; 3380 default: 3381 ret = -TARGET_EINVAL; 3382 goto fail; 3383 } 3384 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1))) 3385 goto efault; 3386 target_to_host_old_sigset(&set, p); 3387 unlock_user(p, arg2, 0); 3388 set_ptr = &set; 3389 } else { 3390 how = 0; 3391 set_ptr = NULL; 3392 } 3393 ret = get_errno(sigprocmask(arg1, set_ptr, &oldset)); 3394 if (!is_error(ret) && arg3) { 3395 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0))) 3396 goto efault; 3397 host_to_target_old_sigset(p, &oldset); 3398 unlock_user(p, arg3, sizeof(target_sigset_t)); 3399 } 3400 } 3401 break; 3402 #endif 3403 case TARGET_NR_rt_sigprocmask: 3404 { 3405 int how = arg1; 3406 sigset_t set, oldset, *set_ptr; 3407 3408 if (arg2) { 3409 switch(how) { 3410 case TARGET_SIG_BLOCK: 3411 how = SIG_BLOCK; 3412 break; 3413 case TARGET_SIG_UNBLOCK: 3414 how = SIG_UNBLOCK; 3415 break; 3416 case TARGET_SIG_SETMASK: 3417 how = SIG_SETMASK; 3418 break; 3419 default: 3420 ret = -TARGET_EINVAL; 3421 goto fail; 3422 } 3423 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1))) 3424 goto efault; 3425 target_to_host_sigset(&set, p); 3426 unlock_user(p, arg2, 0); 3427 set_ptr = &set; 3428 } else { 3429 how = 0; 3430 set_ptr = NULL; 3431 } 3432 ret = get_errno(sigprocmask(how, set_ptr, &oldset)); 3433 if (!is_error(ret) && arg3) { 3434 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0))) 3435 goto efault; 3436 host_to_target_sigset(p, &oldset); 3437 unlock_user(p, arg3, sizeof(target_sigset_t)); 3438 } 3439 } 3440 break; 3441 #ifdef TARGET_NR_sigpending 3442 case TARGET_NR_sigpending: 3443 { 3444 sigset_t set; 3445 ret = get_errno(sigpending(&set)); 3446 if (!is_error(ret)) { 3447 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0))) 3448 goto efault; 3449 host_to_target_old_sigset(p, &set); 3450 unlock_user(p, arg1, sizeof(target_sigset_t)); 3451 } 3452 } 3453 break; 3454 #endif 3455 case TARGET_NR_rt_sigpending: 3456 { 3457 sigset_t set; 3458 ret = get_errno(sigpending(&set)); 3459 if (!is_error(ret)) { 3460 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0))) 3461 goto efault; 3462 host_to_target_sigset(p, &set); 3463 unlock_user(p, arg1, sizeof(target_sigset_t)); 3464 } 3465 } 3466 break; 3467 #ifdef TARGET_NR_sigsuspend 3468 case TARGET_NR_sigsuspend: 3469 { 3470 sigset_t set; 3471 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1))) 3472 goto efault; 3473 target_to_host_old_sigset(&set, p); 3474 unlock_user(p, arg1, 0); 3475 ret = get_errno(sigsuspend(&set)); 3476 } 3477 break; 3478 #endif 3479 case TARGET_NR_rt_sigsuspend: 3480 { 3481 sigset_t set; 3482 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1))) 3483 goto efault; 3484 target_to_host_sigset(&set, p); 3485 unlock_user(p, arg1, 0); 3486 ret = get_errno(sigsuspend(&set)); 3487 } 3488 break; 3489 case TARGET_NR_rt_sigtimedwait: 3490 { 3491 sigset_t set; 3492 struct timespec uts, *puts; 3493 siginfo_t uinfo; 3494 3495 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1))) 3496 goto efault; 3497 target_to_host_sigset(&set, p); 3498 unlock_user(p, arg1, 0); 3499 if (arg3) { 3500 puts = &uts; 3501 target_to_host_timespec(puts, arg3); 3502 } else { 3503 puts = NULL; 3504 } 3505 ret = get_errno(sigtimedwait(&set, &uinfo, puts)); 3506 if (!is_error(ret) && arg2) { 3507 if (!(p = lock_user(VERIFY_WRITE, arg2, sizeof(target_sigset_t), 0))) 3508 goto efault; 3509 host_to_target_siginfo(p, &uinfo); 3510 unlock_user(p, arg2, sizeof(target_sigset_t)); 3511 } 3512 } 3513 break; 3514 case TARGET_NR_rt_sigqueueinfo: 3515 { 3516 siginfo_t uinfo; 3517 if (!(p = lock_user(VERIFY_READ, arg3, sizeof(target_sigset_t), 1))) 3518 goto efault; 3519 target_to_host_siginfo(&uinfo, p); 3520 unlock_user(p, arg1, 0); 3521 ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo)); 3522 } 3523 break; 3524 #ifdef TARGET_NR_sigreturn 3525 case TARGET_NR_sigreturn: 3526 /* NOTE: ret is eax, so not transcoding must be done */ 3527 ret = do_sigreturn(cpu_env); 3528 break; 3529 #endif 3530 case TARGET_NR_rt_sigreturn: 3531 /* NOTE: ret is eax, so not transcoding must be done */ 3532 ret = do_rt_sigreturn(cpu_env); 3533 break; 3534 case TARGET_NR_sethostname: 3535 if (!(p = lock_user_string(arg1))) 3536 goto efault; 3537 ret = get_errno(sethostname(p, arg2)); 3538 unlock_user(p, arg1, 0); 3539 break; 3540 case TARGET_NR_setrlimit: 3541 { 3542 /* XXX: convert resource ? */ 3543 int resource = arg1; 3544 struct target_rlimit *target_rlim; 3545 struct rlimit rlim; 3546 if (!lock_user_struct(VERIFY_READ, target_rlim, arg2, 1)) 3547 goto efault; 3548 rlim.rlim_cur = tswapl(target_rlim->rlim_cur); 3549 rlim.rlim_max = tswapl(target_rlim->rlim_max); 3550 unlock_user_struct(target_rlim, arg2, 0); 3551 ret = get_errno(setrlimit(resource, &rlim)); 3552 } 3553 break; 3554 case TARGET_NR_getrlimit: 3555 { 3556 /* XXX: convert resource ? */ 3557 int resource = arg1; 3558 struct target_rlimit *target_rlim; 3559 struct rlimit rlim; 3560 3561 ret = get_errno(getrlimit(resource, &rlim)); 3562 if (!is_error(ret)) { 3563 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0)) 3564 goto efault; 3565 rlim.rlim_cur = tswapl(target_rlim->rlim_cur); 3566 rlim.rlim_max = tswapl(target_rlim->rlim_max); 3567 unlock_user_struct(target_rlim, arg2, 1); 3568 } 3569 } 3570 break; 3571 case TARGET_NR_getrusage: 3572 { 3573 struct rusage rusage; 3574 ret = get_errno(getrusage(arg1, &rusage)); 3575 if (!is_error(ret)) { 3576 host_to_target_rusage(arg2, &rusage); 3577 } 3578 } 3579 break; 3580 case TARGET_NR_gettimeofday: 3581 { 3582 struct timeval tv; 3583 ret = get_errno(gettimeofday(&tv, NULL)); 3584 if (!is_error(ret)) { 3585 host_to_target_timeval(arg1, &tv); 3586 } 3587 } 3588 break; 3589 case TARGET_NR_settimeofday: 3590 { 3591 struct timeval tv; 3592 target_to_host_timeval(&tv, arg1); 3593 ret = get_errno(settimeofday(&tv, NULL)); 3594 } 3595 break; 3596 #ifdef TARGET_NR_select 3597 case TARGET_NR_select: 3598 { 3599 struct target_sel_arg_struct *sel; 3600 abi_ulong inp, outp, exp, tvp; 3601 long nsel; 3602 3603 if (!lock_user_struct(VERIFY_READ, sel, arg1, 1)) 3604 goto efault; 3605 nsel = tswapl(sel->n); 3606 inp = tswapl(sel->inp); 3607 outp = tswapl(sel->outp); 3608 exp = tswapl(sel->exp); 3609 tvp = tswapl(sel->tvp); 3610 unlock_user_struct(sel, arg1, 0); 3611 ret = do_select(nsel, inp, outp, exp, tvp); 3612 } 3613 break; 3614 #endif 3615 case TARGET_NR_symlink: 3616 { 3617 void *p2; 3618 p = lock_user_string(arg1); 3619 p2 = lock_user_string(arg2); 3620 if (!p || !p2) 3621 ret = -TARGET_EFAULT; 3622 else 3623 ret = get_errno(symlink(p, p2)); 3624 unlock_user(p2, arg2, 0); 3625 unlock_user(p, arg1, 0); 3626 } 3627 break; 3628 #if defined(TARGET_NR_symlinkat) && defined(__NR_symlinkat) 3629 case TARGET_NR_symlinkat: 3630 { 3631 void *p2; 3632 p = lock_user_string(arg1); 3633 p2 = lock_user_string(arg3); 3634 if (!p || !p2) 3635 ret = -TARGET_EFAULT; 3636 else 3637 ret = get_errno(sys_symlinkat(p, arg2, p2)); 3638 unlock_user(p2, arg3, 0); 3639 unlock_user(p, arg1, 0); 3640 } 3641 break; 3642 #endif 3643 #ifdef TARGET_NR_oldlstat 3644 case TARGET_NR_oldlstat: 3645 goto unimplemented; 3646 #endif 3647 case TARGET_NR_readlink: 3648 { 3649 void *p2; 3650 p = lock_user_string(arg1); 3651 p2 = lock_user(VERIFY_WRITE, arg2, arg3, 0); 3652 if (!p || !p2) 3653 ret = -TARGET_EFAULT; 3654 else 3655 ret = get_errno(readlink(path(p), p2, arg3)); 3656 unlock_user(p2, arg2, ret); 3657 unlock_user(p, arg1, 0); 3658 } 3659 break; 3660 #if defined(TARGET_NR_readlinkat) && defined(__NR_readlinkat) 3661 case TARGET_NR_readlinkat: 3662 { 3663 void *p2; 3664 p = lock_user_string(arg2); 3665 p2 = lock_user(VERIFY_WRITE, arg3, arg4, 0); 3666 if (!p || !p2) 3667 ret = -TARGET_EFAULT; 3668 else 3669 ret = get_errno(sys_readlinkat(arg1, path(p), p2, arg4)); 3670 unlock_user(p2, arg3, ret); 3671 unlock_user(p, arg2, 0); 3672 } 3673 break; 3674 #endif 3675 #ifdef TARGET_NR_uselib 3676 case TARGET_NR_uselib: 3677 goto unimplemented; 3678 #endif 3679 #ifdef TARGET_NR_swapon 3680 case TARGET_NR_swapon: 3681 if (!(p = lock_user_string(arg1))) 3682 goto efault; 3683 ret = get_errno(swapon(p, arg2)); 3684 unlock_user(p, arg1, 0); 3685 break; 3686 #endif 3687 case TARGET_NR_reboot: 3688 goto unimplemented; 3689 #ifdef TARGET_NR_readdir 3690 case TARGET_NR_readdir: 3691 goto unimplemented; 3692 #endif 3693 #ifdef TARGET_NR_mmap 3694 case TARGET_NR_mmap: 3695 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_CRIS) 3696 { 3697 abi_ulong *v; 3698 abi_ulong v1, v2, v3, v4, v5, v6; 3699 if (!(v = lock_user(VERIFY_READ, arg1, 6 * sizeof(abi_ulong), 1))) 3700 goto efault; 3701 v1 = tswapl(v[0]); 3702 v2 = tswapl(v[1]); 3703 v3 = tswapl(v[2]); 3704 v4 = tswapl(v[3]); 3705 v5 = tswapl(v[4]); 3706 v6 = tswapl(v[5]); 3707 unlock_user(v, arg1, 0); 3708 ret = get_errno(target_mmap(v1, v2, v3, 3709 target_to_host_bitmask(v4, mmap_flags_tbl), 3710 v5, v6)); 3711 } 3712 #else 3713 ret = get_errno(target_mmap(arg1, arg2, arg3, 3714 target_to_host_bitmask(arg4, mmap_flags_tbl), 3715 arg5, 3716 arg6)); 3717 #endif 3718 break; 3719 #endif 3720 #ifdef TARGET_NR_mmap2 3721 case TARGET_NR_mmap2: 3722 #if defined(TARGET_SPARC) || defined(TARGET_MIPS) 3723 #define MMAP_SHIFT 12 3724 #else 3725 #define MMAP_SHIFT TARGET_PAGE_BITS 3726 #endif 3727 ret = get_errno(target_mmap(arg1, arg2, arg3, 3728 target_to_host_bitmask(arg4, mmap_flags_tbl), 3729 arg5, 3730 arg6 << MMAP_SHIFT)); 3731 break; 3732 #endif 3733 case TARGET_NR_munmap: 3734 ret = get_errno(target_munmap(arg1, arg2)); 3735 break; 3736 case TARGET_NR_mprotect: 3737 ret = get_errno(target_mprotect(arg1, arg2, arg3)); 3738 break; 3739 #ifdef TARGET_NR_mremap 3740 case TARGET_NR_mremap: 3741 ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5)); 3742 break; 3743 #endif 3744 /* ??? msync/mlock/munlock are broken for softmmu. */ 3745 #ifdef TARGET_NR_msync 3746 case TARGET_NR_msync: 3747 ret = get_errno(msync(g2h(arg1), arg2, arg3)); 3748 break; 3749 #endif 3750 #ifdef TARGET_NR_mlock 3751 case TARGET_NR_mlock: 3752 ret = get_errno(mlock(g2h(arg1), arg2)); 3753 break; 3754 #endif 3755 #ifdef TARGET_NR_munlock 3756 case TARGET_NR_munlock: 3757 ret = get_errno(munlock(g2h(arg1), arg2)); 3758 break; 3759 #endif 3760 #ifdef TARGET_NR_mlockall 3761 case TARGET_NR_mlockall: 3762 ret = get_errno(mlockall(arg1)); 3763 break; 3764 #endif 3765 #ifdef TARGET_NR_munlockall 3766 case TARGET_NR_munlockall: 3767 ret = get_errno(munlockall()); 3768 break; 3769 #endif 3770 case TARGET_NR_truncate: 3771 if (!(p = lock_user_string(arg1))) 3772 goto efault; 3773 ret = get_errno(truncate(p, arg2)); 3774 unlock_user(p, arg1, 0); 3775 break; 3776 case TARGET_NR_ftruncate: 3777 ret = get_errno(ftruncate(arg1, arg2)); 3778 break; 3779 case TARGET_NR_fchmod: 3780 ret = get_errno(fchmod(arg1, arg2)); 3781 break; 3782 #if defined(TARGET_NR_fchmodat) && defined(__NR_fchmodat) 3783 case TARGET_NR_fchmodat: 3784 if (!(p = lock_user_string(arg2))) 3785 goto efault; 3786 ret = get_errno(sys_fchmodat(arg1, p, arg3, arg4)); 3787 unlock_user(p, arg2, 0); 3788 break; 3789 #endif 3790 case TARGET_NR_getpriority: 3791 /* libc does special remapping of the return value of 3792 * sys_getpriority() so it's just easiest to call 3793 * sys_getpriority() directly rather than through libc. */ 3794 ret = sys_getpriority(arg1, arg2); 3795 break; 3796 case TARGET_NR_setpriority: 3797 ret = get_errno(setpriority(arg1, arg2, arg3)); 3798 break; 3799 #ifdef TARGET_NR_profil 3800 case TARGET_NR_profil: 3801 goto unimplemented; 3802 #endif 3803 case TARGET_NR_statfs: 3804 if (!(p = lock_user_string(arg1))) 3805 goto efault; 3806 ret = get_errno(statfs(path(p), &stfs)); 3807 unlock_user(p, arg1, 0); 3808 convert_statfs: 3809 if (!is_error(ret)) { 3810 struct target_statfs *target_stfs; 3811 3812 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg2, 0)) 3813 goto efault; 3814 __put_user(stfs.f_type, &target_stfs->f_type); 3815 __put_user(stfs.f_bsize, &target_stfs->f_bsize); 3816 __put_user(stfs.f_blocks, &target_stfs->f_blocks); 3817 __put_user(stfs.f_bfree, &target_stfs->f_bfree); 3818 __put_user(stfs.f_bavail, &target_stfs->f_bavail); 3819 __put_user(stfs.f_files, &target_stfs->f_files); 3820 __put_user(stfs.f_ffree, &target_stfs->f_ffree); 3821 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]); 3822 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]); 3823 __put_user(stfs.f_namelen, &target_stfs->f_namelen); 3824 unlock_user_struct(target_stfs, arg2, 1); 3825 } 3826 break; 3827 case TARGET_NR_fstatfs: 3828 ret = get_errno(fstatfs(arg1, &stfs)); 3829 goto convert_statfs; 3830 #ifdef TARGET_NR_statfs64 3831 case TARGET_NR_statfs64: 3832 if (!(p = lock_user_string(arg1))) 3833 goto efault; 3834 ret = get_errno(statfs(path(p), &stfs)); 3835 unlock_user(p, arg1, 0); 3836 convert_statfs64: 3837 if (!is_error(ret)) { 3838 struct target_statfs64 *target_stfs; 3839 3840 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg3, 0)) 3841 goto efault; 3842 __put_user(stfs.f_type, &target_stfs->f_type); 3843 __put_user(stfs.f_bsize, &target_stfs->f_bsize); 3844 __put_user(stfs.f_blocks, &target_stfs->f_blocks); 3845 __put_user(stfs.f_bfree, &target_stfs->f_bfree); 3846 __put_user(stfs.f_bavail, &target_stfs->f_bavail); 3847 __put_user(stfs.f_files, &target_stfs->f_files); 3848 __put_user(stfs.f_ffree, &target_stfs->f_ffree); 3849 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]); 3850 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]); 3851 __put_user(stfs.f_namelen, &target_stfs->f_namelen); 3852 unlock_user_struct(target_stfs, arg3, 1); 3853 } 3854 break; 3855 case TARGET_NR_fstatfs64: 3856 ret = get_errno(fstatfs(arg1, &stfs)); 3857 goto convert_statfs64; 3858 #endif 3859 #ifdef TARGET_NR_ioperm 3860 case TARGET_NR_ioperm: 3861 goto unimplemented; 3862 #endif 3863 #ifdef TARGET_NR_socketcall 3864 case TARGET_NR_socketcall: 3865 ret = do_socketcall(arg1, arg2); 3866 break; 3867 #endif 3868 #ifdef TARGET_NR_accept 3869 case TARGET_NR_accept: 3870 ret = do_accept(arg1, arg2, arg3); 3871 break; 3872 #endif 3873 #ifdef TARGET_NR_bind 3874 case TARGET_NR_bind: 3875 ret = do_bind(arg1, arg2, arg3); 3876 break; 3877 #endif 3878 #ifdef TARGET_NR_connect 3879 case TARGET_NR_connect: 3880 ret = do_connect(arg1, arg2, arg3); 3881 break; 3882 #endif 3883 #ifdef TARGET_NR_getpeername 3884 case TARGET_NR_getpeername: 3885 ret = do_getpeername(arg1, arg2, arg3); 3886 break; 3887 #endif 3888 #ifdef TARGET_NR_getsockname 3889 case TARGET_NR_getsockname: 3890 ret = do_getsockname(arg1, arg2, arg3); 3891 break; 3892 #endif 3893 #ifdef TARGET_NR_getsockopt 3894 case TARGET_NR_getsockopt: 3895 ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5); 3896 break; 3897 #endif 3898 #ifdef TARGET_NR_listen 3899 case TARGET_NR_listen: 3900 ret = get_errno(listen(arg1, arg2)); 3901 break; 3902 #endif 3903 #ifdef TARGET_NR_recv 3904 case TARGET_NR_recv: 3905 ret = do_recvfrom(arg1, arg2, arg3, arg4, 0, 0); 3906 break; 3907 #endif 3908 #ifdef TARGET_NR_recvfrom 3909 case TARGET_NR_recvfrom: 3910 ret = do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6); 3911 break; 3912 #endif 3913 #ifdef TARGET_NR_recvmsg 3914 case TARGET_NR_recvmsg: 3915 ret = do_sendrecvmsg(arg1, arg2, arg3, 0); 3916 break; 3917 #endif 3918 #ifdef TARGET_NR_send 3919 case TARGET_NR_send: 3920 ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0); 3921 break; 3922 #endif 3923 #ifdef TARGET_NR_sendmsg 3924 case TARGET_NR_sendmsg: 3925 ret = do_sendrecvmsg(arg1, arg2, arg3, 1); 3926 break; 3927 #endif 3928 #ifdef TARGET_NR_sendto 3929 case TARGET_NR_sendto: 3930 ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6); 3931 break; 3932 #endif 3933 #ifdef TARGET_NR_shutdown 3934 case TARGET_NR_shutdown: 3935 ret = get_errno(shutdown(arg1, arg2)); 3936 break; 3937 #endif 3938 #ifdef TARGET_NR_socket 3939 case TARGET_NR_socket: 3940 ret = do_socket(arg1, arg2, arg3); 3941 break; 3942 #endif 3943 #ifdef TARGET_NR_socketpair 3944 case TARGET_NR_socketpair: 3945 ret = do_socketpair(arg1, arg2, arg3, arg4); 3946 break; 3947 #endif 3948 #ifdef TARGET_NR_setsockopt 3949 case TARGET_NR_setsockopt: 3950 ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5); 3951 break; 3952 #endif 3953 3954 case TARGET_NR_syslog: 3955 if (!(p = lock_user_string(arg2))) 3956 goto efault; 3957 ret = get_errno(sys_syslog((int)arg1, p, (int)arg3)); 3958 unlock_user(p, arg2, 0); 3959 break; 3960 3961 case TARGET_NR_setitimer: 3962 { 3963 struct itimerval value, ovalue, *pvalue; 3964 3965 if (arg2) { 3966 pvalue = &value; 3967 target_to_host_timeval(&pvalue->it_interval, 3968 arg2); 3969 target_to_host_timeval(&pvalue->it_value, 3970 arg2 + sizeof(struct target_timeval)); 3971 } else { 3972 pvalue = NULL; 3973 } 3974 ret = get_errno(setitimer(arg1, pvalue, &ovalue)); 3975 if (!is_error(ret) && arg3) { 3976 host_to_target_timeval(arg3, 3977 &ovalue.it_interval); 3978 host_to_target_timeval(arg3 + sizeof(struct target_timeval), 3979 &ovalue.it_value); 3980 } 3981 } 3982 break; 3983 case TARGET_NR_getitimer: 3984 { 3985 struct itimerval value; 3986 3987 ret = get_errno(getitimer(arg1, &value)); 3988 if (!is_error(ret) && arg2) { 3989 host_to_target_timeval(arg2, 3990 &value.it_interval); 3991 host_to_target_timeval(arg2 + sizeof(struct target_timeval), 3992 &value.it_value); 3993 } 3994 } 3995 break; 3996 case TARGET_NR_stat: 3997 if (!(p = lock_user_string(arg1))) 3998 goto efault; 3999 ret = get_errno(stat(path(p), &st)); 4000 unlock_user(p, arg1, 0); 4001 goto do_stat; 4002 case TARGET_NR_lstat: 4003 if (!(p = lock_user_string(arg1))) 4004 goto efault; 4005 ret = get_errno(lstat(path(p), &st)); 4006 unlock_user(p, arg1, 0); 4007 goto do_stat; 4008 case TARGET_NR_fstat: 4009 { 4010 ret = get_errno(fstat(arg1, &st)); 4011 do_stat: 4012 if (!is_error(ret)) { 4013 struct target_stat *target_st; 4014 4015 if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0)) 4016 goto efault; 4017 #if defined(TARGET_MIPS) || (defined(TARGET_SPARC64) && !defined(TARGET_ABI32)) 4018 target_st->st_dev = tswap32(st.st_dev); 4019 #else 4020 target_st->st_dev = tswap16(st.st_dev); 4021 #endif 4022 target_st->st_ino = tswapl(st.st_ino); 4023 #if defined(TARGET_PPC) || defined(TARGET_MIPS) 4024 target_st->st_mode = tswapl(st.st_mode); /* XXX: check this */ 4025 target_st->st_uid = tswap32(st.st_uid); 4026 target_st->st_gid = tswap32(st.st_gid); 4027 #elif defined(TARGET_SPARC64) && !defined(TARGET_ABI32) 4028 target_st->st_mode = tswap32(st.st_mode); 4029 target_st->st_uid = tswap32(st.st_uid); 4030 target_st->st_gid = tswap32(st.st_gid); 4031 #else 4032 target_st->st_mode = tswap16(st.st_mode); 4033 target_st->st_uid = tswap16(st.st_uid); 4034 target_st->st_gid = tswap16(st.st_gid); 4035 #endif 4036 #if defined(TARGET_MIPS) 4037 /* If this is the same on PPC, then just merge w/ the above ifdef */ 4038 target_st->st_nlink = tswapl(st.st_nlink); 4039 target_st->st_rdev = tswapl(st.st_rdev); 4040 #elif defined(TARGET_SPARC64) && !defined(TARGET_ABI32) 4041 target_st->st_nlink = tswap32(st.st_nlink); 4042 target_st->st_rdev = tswap32(st.st_rdev); 4043 #else 4044 target_st->st_nlink = tswap16(st.st_nlink); 4045 target_st->st_rdev = tswap16(st.st_rdev); 4046 #endif 4047 target_st->st_size = tswapl(st.st_size); 4048 target_st->st_blksize = tswapl(st.st_blksize); 4049 target_st->st_blocks = tswapl(st.st_blocks); 4050 target_st->target_st_atime = tswapl(st.st_atime); 4051 target_st->target_st_mtime = tswapl(st.st_mtime); 4052 target_st->target_st_ctime = tswapl(st.st_ctime); 4053 unlock_user_struct(target_st, arg2, 1); 4054 } 4055 } 4056 break; 4057 #ifdef TARGET_NR_olduname 4058 case TARGET_NR_olduname: 4059 goto unimplemented; 4060 #endif 4061 #ifdef TARGET_NR_iopl 4062 case TARGET_NR_iopl: 4063 goto unimplemented; 4064 #endif 4065 case TARGET_NR_vhangup: 4066 ret = get_errno(vhangup()); 4067 break; 4068 #ifdef TARGET_NR_idle 4069 case TARGET_NR_idle: 4070 goto unimplemented; 4071 #endif 4072 #ifdef TARGET_NR_syscall 4073 case TARGET_NR_syscall: 4074 ret = do_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,0); 4075 break; 4076 #endif 4077 case TARGET_NR_wait4: 4078 { 4079 int status; 4080 abi_long status_ptr = arg2; 4081 struct rusage rusage, *rusage_ptr; 4082 abi_ulong target_rusage = arg4; 4083 if (target_rusage) 4084 rusage_ptr = &rusage; 4085 else 4086 rusage_ptr = NULL; 4087 ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr)); 4088 if (!is_error(ret)) { 4089 if (status_ptr) 4090 tputl(status_ptr, status); 4091 if (target_rusage) { 4092 host_to_target_rusage(target_rusage, &rusage); 4093 } 4094 } 4095 } 4096 break; 4097 #ifdef TARGET_NR_swapoff 4098 case TARGET_NR_swapoff: 4099 if (!(p = lock_user_string(arg1))) 4100 goto efault; 4101 ret = get_errno(swapoff(p)); 4102 unlock_user(p, arg1, 0); 4103 break; 4104 #endif 4105 case TARGET_NR_sysinfo: 4106 { 4107 struct target_sysinfo *target_value; 4108 struct sysinfo value; 4109 ret = get_errno(sysinfo(&value)); 4110 if (!is_error(ret) && arg1) 4111 { 4112 if (!lock_user_struct(VERIFY_WRITE, target_value, arg1, 0)) 4113 goto efault; 4114 __put_user(value.uptime, &target_value->uptime); 4115 __put_user(value.loads[0], &target_value->loads[0]); 4116 __put_user(value.loads[1], &target_value->loads[1]); 4117 __put_user(value.loads[2], &target_value->loads[2]); 4118 __put_user(value.totalram, &target_value->totalram); 4119 __put_user(value.freeram, &target_value->freeram); 4120 __put_user(value.sharedram, &target_value->sharedram); 4121 __put_user(value.bufferram, &target_value->bufferram); 4122 __put_user(value.totalswap, &target_value->totalswap); 4123 __put_user(value.freeswap, &target_value->freeswap); 4124 __put_user(value.procs, &target_value->procs); 4125 __put_user(value.totalhigh, &target_value->totalhigh); 4126 __put_user(value.freehigh, &target_value->freehigh); 4127 __put_user(value.mem_unit, &target_value->mem_unit); 4128 unlock_user_struct(target_value, arg1, 1); 4129 } 4130 } 4131 break; 4132 #ifdef TARGET_NR_ipc 4133 case TARGET_NR_ipc: 4134 ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6); 4135 break; 4136 #endif 4137 case TARGET_NR_fsync: 4138 ret = get_errno(fsync(arg1)); 4139 break; 4140 case TARGET_NR_clone: 4141 ret = get_errno(do_fork(cpu_env, arg1, arg2)); 4142 break; 4143 #ifdef __NR_exit_group 4144 /* new thread calls */ 4145 case TARGET_NR_exit_group: 4146 gdb_exit(cpu_env, arg1); 4147 ret = get_errno(exit_group(arg1)); 4148 break; 4149 #endif 4150 case TARGET_NR_setdomainname: 4151 if (!(p = lock_user_string(arg1))) 4152 goto efault; 4153 ret = get_errno(setdomainname(p, arg2)); 4154 unlock_user(p, arg1, 0); 4155 break; 4156 case TARGET_NR_uname: 4157 /* no need to transcode because we use the linux syscall */ 4158 { 4159 struct new_utsname * buf; 4160 4161 if (!lock_user_struct(VERIFY_WRITE, buf, arg1, 0)) 4162 goto efault; 4163 ret = get_errno(sys_uname(buf)); 4164 if (!is_error(ret)) { 4165 /* Overrite the native machine name with whatever is being 4166 emulated. */ 4167 strcpy (buf->machine, UNAME_MACHINE); 4168 /* Allow the user to override the reported release. */ 4169 if (qemu_uname_release && *qemu_uname_release) 4170 strcpy (buf->release, qemu_uname_release); 4171 } 4172 unlock_user_struct(buf, arg1, 1); 4173 } 4174 break; 4175 #ifdef TARGET_I386 4176 case TARGET_NR_modify_ldt: 4177 ret = get_errno(do_modify_ldt(cpu_env, arg1, arg2, arg3)); 4178 break; 4179 #if !defined(TARGET_X86_64) 4180 case TARGET_NR_vm86old: 4181 goto unimplemented; 4182 case TARGET_NR_vm86: 4183 ret = do_vm86(cpu_env, arg1, arg2); 4184 break; 4185 #endif 4186 #endif 4187 case TARGET_NR_adjtimex: 4188 goto unimplemented; 4189 #ifdef TARGET_NR_create_module 4190 case TARGET_NR_create_module: 4191 #endif 4192 case TARGET_NR_init_module: 4193 case TARGET_NR_delete_module: 4194 #ifdef TARGET_NR_get_kernel_syms 4195 case TARGET_NR_get_kernel_syms: 4196 #endif 4197 goto unimplemented; 4198 case TARGET_NR_quotactl: 4199 goto unimplemented; 4200 case TARGET_NR_getpgid: 4201 ret = get_errno(getpgid(arg1)); 4202 break; 4203 case TARGET_NR_fchdir: 4204 ret = get_errno(fchdir(arg1)); 4205 break; 4206 #ifdef TARGET_NR_bdflush /* not on x86_64 */ 4207 case TARGET_NR_bdflush: 4208 goto unimplemented; 4209 #endif 4210 #ifdef TARGET_NR_sysfs 4211 case TARGET_NR_sysfs: 4212 goto unimplemented; 4213 #endif 4214 case TARGET_NR_personality: 4215 ret = get_errno(personality(arg1)); 4216 break; 4217 #ifdef TARGET_NR_afs_syscall 4218 case TARGET_NR_afs_syscall: 4219 goto unimplemented; 4220 #endif 4221 #ifdef TARGET_NR__llseek /* Not on alpha */ 4222 case TARGET_NR__llseek: 4223 { 4224 #if defined (__x86_64__) 4225 ret = get_errno(lseek(arg1, ((uint64_t )arg2 << 32) | arg3, arg5)); 4226 tput64(arg4, ret); 4227 #else 4228 int64_t res; 4229 ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5)); 4230 tput64(arg4, res); 4231 #endif 4232 } 4233 break; 4234 #endif 4235 case TARGET_NR_getdents: 4236 #if TARGET_ABI_BITS != 32 4237 goto unimplemented; 4238 #warning not supported 4239 #elif TARGET_ABI_BITS == 32 && HOST_LONG_BITS == 64 4240 { 4241 struct target_dirent *target_dirp; 4242 struct dirent *dirp; 4243 abi_long count = arg3; 4244 4245 dirp = malloc(count); 4246 if (!dirp) { 4247 ret = -TARGET_ENOMEM; 4248 goto fail; 4249 } 4250 4251 ret = get_errno(sys_getdents(arg1, dirp, count)); 4252 if (!is_error(ret)) { 4253 struct dirent *de; 4254 struct target_dirent *tde; 4255 int len = ret; 4256 int reclen, treclen; 4257 int count1, tnamelen; 4258 4259 count1 = 0; 4260 de = dirp; 4261 if (!(target_dirp = lock_user(VERIFY_WRITE, arg2, count, 0))) 4262 goto efault; 4263 tde = target_dirp; 4264 while (len > 0) { 4265 reclen = de->d_reclen; 4266 treclen = reclen - (2 * (sizeof(long) - sizeof(abi_long))); 4267 tde->d_reclen = tswap16(treclen); 4268 tde->d_ino = tswapl(de->d_ino); 4269 tde->d_off = tswapl(de->d_off); 4270 tnamelen = treclen - (2 * sizeof(abi_long) + 2); 4271 if (tnamelen > 256) 4272 tnamelen = 256; 4273 /* XXX: may not be correct */ 4274 strncpy(tde->d_name, de->d_name, tnamelen); 4275 de = (struct dirent *)((char *)de + reclen); 4276 len -= reclen; 4277 tde = (struct target_dirent *)((char *)tde + treclen); 4278 count1 += treclen; 4279 } 4280 ret = count1; 4281 unlock_user(target_dirp, arg2, ret); 4282 } 4283 free(dirp); 4284 } 4285 #else 4286 { 4287 struct dirent *dirp; 4288 abi_long count = arg3; 4289 4290 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0))) 4291 goto efault; 4292 ret = get_errno(sys_getdents(arg1, dirp, count)); 4293 if (!is_error(ret)) { 4294 struct dirent *de; 4295 int len = ret; 4296 int reclen; 4297 de = dirp; 4298 while (len > 0) { 4299 reclen = de->d_reclen; 4300 if (reclen > len) 4301 break; 4302 de->d_reclen = tswap16(reclen); 4303 tswapls(&de->d_ino); 4304 tswapls(&de->d_off); 4305 de = (struct dirent *)((char *)de + reclen); 4306 len -= reclen; 4307 } 4308 } 4309 unlock_user(dirp, arg2, ret); 4310 } 4311 #endif 4312 break; 4313 #if defined(TARGET_NR_getdents64) && defined(__NR_getdents64) 4314 case TARGET_NR_getdents64: 4315 { 4316 struct dirent64 *dirp; 4317 abi_long count = arg3; 4318 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0))) 4319 goto efault; 4320 ret = get_errno(sys_getdents64(arg1, dirp, count)); 4321 if (!is_error(ret)) { 4322 struct dirent64 *de; 4323 int len = ret; 4324 int reclen; 4325 de = dirp; 4326 while (len > 0) { 4327 reclen = de->d_reclen; 4328 if (reclen > len) 4329 break; 4330 de->d_reclen = tswap16(reclen); 4331 tswap64s(&de->d_ino); 4332 tswap64s(&de->d_off); 4333 de = (struct dirent64 *)((char *)de + reclen); 4334 len -= reclen; 4335 } 4336 } 4337 unlock_user(dirp, arg2, ret); 4338 } 4339 break; 4340 #endif /* TARGET_NR_getdents64 */ 4341 #ifdef TARGET_NR__newselect 4342 case TARGET_NR__newselect: 4343 ret = do_select(arg1, arg2, arg3, arg4, arg5); 4344 break; 4345 #endif 4346 #ifdef TARGET_NR_poll 4347 case TARGET_NR_poll: 4348 { 4349 struct target_pollfd *target_pfd; 4350 unsigned int nfds = arg2; 4351 int timeout = arg3; 4352 struct pollfd *pfd; 4353 unsigned int i; 4354 4355 target_pfd = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_pollfd) * nfds, 1); 4356 if (!target_pfd) 4357 goto efault; 4358 pfd = alloca(sizeof(struct pollfd) * nfds); 4359 for(i = 0; i < nfds; i++) { 4360 pfd[i].fd = tswap32(target_pfd[i].fd); 4361 pfd[i].events = tswap16(target_pfd[i].events); 4362 } 4363 ret = get_errno(poll(pfd, nfds, timeout)); 4364 if (!is_error(ret)) { 4365 for(i = 0; i < nfds; i++) { 4366 target_pfd[i].revents = tswap16(pfd[i].revents); 4367 } 4368 ret += nfds * (sizeof(struct target_pollfd) 4369 - sizeof(struct pollfd)); 4370 } 4371 unlock_user(target_pfd, arg1, ret); 4372 } 4373 break; 4374 #endif 4375 case TARGET_NR_flock: 4376 /* NOTE: the flock constant seems to be the same for every 4377 Linux platform */ 4378 ret = get_errno(flock(arg1, arg2)); 4379 break; 4380 case TARGET_NR_readv: 4381 { 4382 int count = arg3; 4383 struct iovec *vec; 4384 4385 vec = alloca(count * sizeof(struct iovec)); 4386 lock_iovec(VERIFY_WRITE, vec, arg2, count, 0); 4387 ret = get_errno(readv(arg1, vec, count)); 4388 unlock_iovec(vec, arg2, count, 1); 4389 } 4390 break; 4391 case TARGET_NR_writev: 4392 { 4393 int count = arg3; 4394 struct iovec *vec; 4395 4396 vec = alloca(count * sizeof(struct iovec)); 4397 lock_iovec(VERIFY_READ, vec, arg2, count, 1); 4398 ret = get_errno(writev(arg1, vec, count)); 4399 unlock_iovec(vec, arg2, count, 0); 4400 } 4401 break; 4402 case TARGET_NR_getsid: 4403 ret = get_errno(getsid(arg1)); 4404 break; 4405 #if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */ 4406 case TARGET_NR_fdatasync: 4407 ret = get_errno(fdatasync(arg1)); 4408 break; 4409 #endif 4410 case TARGET_NR__sysctl: 4411 /* We don't implement this, but ENOTDIR is always a safe 4412 return value. */ 4413 ret = -TARGET_ENOTDIR; 4414 break; 4415 case TARGET_NR_sched_setparam: 4416 { 4417 struct sched_param *target_schp; 4418 struct sched_param schp; 4419 4420 if (!lock_user_struct(VERIFY_READ, target_schp, arg2, 1)) 4421 goto efault; 4422 schp.sched_priority = tswap32(target_schp->sched_priority); 4423 unlock_user_struct(target_schp, arg2, 0); 4424 ret = get_errno(sched_setparam(arg1, &schp)); 4425 } 4426 break; 4427 case TARGET_NR_sched_getparam: 4428 { 4429 struct sched_param *target_schp; 4430 struct sched_param schp; 4431 ret = get_errno(sched_getparam(arg1, &schp)); 4432 if (!is_error(ret)) { 4433 if (!lock_user_struct(VERIFY_WRITE, target_schp, arg2, 0)) 4434 goto efault; 4435 target_schp->sched_priority = tswap32(schp.sched_priority); 4436 unlock_user_struct(target_schp, arg2, 1); 4437 } 4438 } 4439 break; 4440 case TARGET_NR_sched_setscheduler: 4441 { 4442 struct sched_param *target_schp; 4443 struct sched_param schp; 4444 if (!lock_user_struct(VERIFY_READ, target_schp, arg3, 1)) 4445 goto efault; 4446 schp.sched_priority = tswap32(target_schp->sched_priority); 4447 unlock_user_struct(target_schp, arg3, 0); 4448 ret = get_errno(sched_setscheduler(arg1, arg2, &schp)); 4449 } 4450 break; 4451 case TARGET_NR_sched_getscheduler: 4452 ret = get_errno(sched_getscheduler(arg1)); 4453 break; 4454 case TARGET_NR_sched_yield: 4455 ret = get_errno(sched_yield()); 4456 break; 4457 case TARGET_NR_sched_get_priority_max: 4458 ret = get_errno(sched_get_priority_max(arg1)); 4459 break; 4460 case TARGET_NR_sched_get_priority_min: 4461 ret = get_errno(sched_get_priority_min(arg1)); 4462 break; 4463 case TARGET_NR_sched_rr_get_interval: 4464 { 4465 struct timespec ts; 4466 ret = get_errno(sched_rr_get_interval(arg1, &ts)); 4467 if (!is_error(ret)) { 4468 host_to_target_timespec(arg2, &ts); 4469 } 4470 } 4471 break; 4472 case TARGET_NR_nanosleep: 4473 { 4474 struct timespec req, rem; 4475 target_to_host_timespec(&req, arg1); 4476 ret = get_errno(nanosleep(&req, &rem)); 4477 if (is_error(ret) && arg2) { 4478 host_to_target_timespec(arg2, &rem); 4479 } 4480 } 4481 break; 4482 #ifdef TARGET_NR_query_module 4483 case TARGET_NR_query_module: 4484 goto unimplemented; 4485 #endif 4486 #ifdef TARGET_NR_nfsservctl 4487 case TARGET_NR_nfsservctl: 4488 goto unimplemented; 4489 #endif 4490 case TARGET_NR_prctl: 4491 switch (arg1) 4492 { 4493 case PR_GET_PDEATHSIG: 4494 { 4495 int deathsig; 4496 ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5)); 4497 if (!is_error(ret) && arg2) 4498 tput32(arg2, deathsig); 4499 } 4500 break; 4501 default: 4502 ret = get_errno(prctl(arg1, arg2, arg3, arg4, arg5)); 4503 break; 4504 } 4505 break; 4506 #ifdef TARGET_NR_pread 4507 case TARGET_NR_pread: 4508 page_unprotect_range(arg2, arg3); 4509 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0))) 4510 goto efault; 4511 ret = get_errno(pread(arg1, p, arg3, arg4)); 4512 unlock_user(p, arg2, ret); 4513 break; 4514 case TARGET_NR_pwrite: 4515 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1))) 4516 goto efault; 4517 ret = get_errno(pwrite(arg1, p, arg3, arg4)); 4518 unlock_user(p, arg2, 0); 4519 break; 4520 #endif 4521 case TARGET_NR_getcwd: 4522 if (!(p = lock_user(VERIFY_WRITE, arg1, arg2, 0))) 4523 goto efault; 4524 ret = get_errno(sys_getcwd1(p, arg2)); 4525 unlock_user(p, arg1, ret); 4526 break; 4527 case TARGET_NR_capget: 4528 goto unimplemented; 4529 case TARGET_NR_capset: 4530 goto unimplemented; 4531 case TARGET_NR_sigaltstack: 4532 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_MIPS) || \ 4533 defined(TARGET_SPARC) || defined(TARGET_PPC) || defined(TARGET_ALPHA) 4534 ret = do_sigaltstack(arg1, arg2, get_sp_from_cpustate((CPUState *)cpu_env)); 4535 break; 4536 #else 4537 goto unimplemented; 4538 #endif 4539 case TARGET_NR_sendfile: 4540 goto unimplemented; 4541 #ifdef TARGET_NR_getpmsg 4542 case TARGET_NR_getpmsg: 4543 goto unimplemented; 4544 #endif 4545 #ifdef TARGET_NR_putpmsg 4546 case TARGET_NR_putpmsg: 4547 goto unimplemented; 4548 #endif 4549 #ifdef TARGET_NR_vfork 4550 case TARGET_NR_vfork: 4551 ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 0)); 4552 break; 4553 #endif 4554 #ifdef TARGET_NR_ugetrlimit 4555 case TARGET_NR_ugetrlimit: 4556 { 4557 struct rlimit rlim; 4558 ret = get_errno(getrlimit(arg1, &rlim)); 4559 if (!is_error(ret)) { 4560 struct target_rlimit *target_rlim; 4561 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0)) 4562 goto efault; 4563 target_rlim->rlim_cur = tswapl(rlim.rlim_cur); 4564 target_rlim->rlim_max = tswapl(rlim.rlim_max); 4565 unlock_user_struct(target_rlim, arg2, 1); 4566 } 4567 break; 4568 } 4569 #endif 4570 #ifdef TARGET_NR_truncate64 4571 case TARGET_NR_truncate64: 4572 if (!(p = lock_user_string(arg1))) 4573 goto efault; 4574 ret = target_truncate64(cpu_env, p, arg2, arg3, arg4); 4575 unlock_user(p, arg1, 0); 4576 break; 4577 #endif 4578 #ifdef TARGET_NR_ftruncate64 4579 case TARGET_NR_ftruncate64: 4580 ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4); 4581 break; 4582 #endif 4583 #ifdef TARGET_NR_stat64 4584 case TARGET_NR_stat64: 4585 if (!(p = lock_user_string(arg1))) 4586 goto efault; 4587 ret = get_errno(stat(path(p), &st)); 4588 unlock_user(p, arg1, 0); 4589 goto do_stat64; 4590 #endif 4591 #ifdef TARGET_NR_lstat64 4592 case TARGET_NR_lstat64: 4593 if (!(p = lock_user_string(arg1))) 4594 goto efault; 4595 ret = get_errno(lstat(path(p), &st)); 4596 unlock_user(p, arg1, 0); 4597 goto do_stat64; 4598 #endif 4599 #ifdef TARGET_NR_fstat64 4600 case TARGET_NR_fstat64: 4601 { 4602 ret = get_errno(fstat(arg1, &st)); 4603 do_stat64: 4604 if (!is_error(ret)) { 4605 #ifdef TARGET_ARM 4606 if (((CPUARMState *)cpu_env)->eabi) { 4607 struct target_eabi_stat64 *target_st; 4608 4609 if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0)) 4610 goto efault; 4611 memset(target_st, 0, sizeof(struct target_eabi_stat64)); 4612 __put_user(st.st_dev, &target_st->st_dev); 4613 __put_user(st.st_ino, &target_st->st_ino); 4614 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO 4615 __put_user(st.st_ino, &target_st->__st_ino); 4616 #endif 4617 __put_user(st.st_mode, &target_st->st_mode); 4618 __put_user(st.st_nlink, &target_st->st_nlink); 4619 __put_user(st.st_uid, &target_st->st_uid); 4620 __put_user(st.st_gid, &target_st->st_gid); 4621 __put_user(st.st_rdev, &target_st->st_rdev); 4622 __put_user(st.st_size, &target_st->st_size); 4623 __put_user(st.st_blksize, &target_st->st_blksize); 4624 __put_user(st.st_blocks, &target_st->st_blocks); 4625 __put_user(st.st_atime, &target_st->target_st_atime); 4626 __put_user(st.st_mtime, &target_st->target_st_mtime); 4627 __put_user(st.st_ctime, &target_st->target_st_ctime); 4628 unlock_user_struct(target_st, arg2, 1); 4629 } else 4630 #endif 4631 { 4632 struct target_stat64 *target_st; 4633 4634 if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0)) 4635 goto efault; 4636 memset(target_st, 0, sizeof(struct target_stat64)); 4637 __put_user(st.st_dev, &target_st->st_dev); 4638 __put_user(st.st_ino, &target_st->st_ino); 4639 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO 4640 __put_user(st.st_ino, &target_st->__st_ino); 4641 #endif 4642 __put_user(st.st_mode, &target_st->st_mode); 4643 __put_user(st.st_nlink, &target_st->st_nlink); 4644 __put_user(st.st_uid, &target_st->st_uid); 4645 __put_user(st.st_gid, &target_st->st_gid); 4646 __put_user(st.st_rdev, &target_st->st_rdev); 4647 /* XXX: better use of kernel struct */ 4648 __put_user(st.st_size, &target_st->st_size); 4649 __put_user(st.st_blksize, &target_st->st_blksize); 4650 __put_user(st.st_blocks, &target_st->st_blocks); 4651 __put_user(st.st_atime, &target_st->target_st_atime); 4652 __put_user(st.st_mtime, &target_st->target_st_mtime); 4653 __put_user(st.st_ctime, &target_st->target_st_ctime); 4654 unlock_user_struct(target_st, arg2, 1); 4655 } 4656 } 4657 } 4658 break; 4659 #endif 4660 #ifdef USE_UID16 4661 case TARGET_NR_lchown: 4662 if (!(p = lock_user_string(arg1))) 4663 goto efault; 4664 ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3))); 4665 unlock_user(p, arg1, 0); 4666 break; 4667 case TARGET_NR_getuid: 4668 ret = get_errno(high2lowuid(getuid())); 4669 break; 4670 case TARGET_NR_getgid: 4671 ret = get_errno(high2lowgid(getgid())); 4672 break; 4673 case TARGET_NR_geteuid: 4674 ret = get_errno(high2lowuid(geteuid())); 4675 break; 4676 case TARGET_NR_getegid: 4677 ret = get_errno(high2lowgid(getegid())); 4678 break; 4679 case TARGET_NR_setreuid: 4680 ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2))); 4681 break; 4682 case TARGET_NR_setregid: 4683 ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2))); 4684 break; 4685 case TARGET_NR_getgroups: 4686 { 4687 int gidsetsize = arg1; 4688 uint16_t *target_grouplist; 4689 gid_t *grouplist; 4690 int i; 4691 4692 grouplist = alloca(gidsetsize * sizeof(gid_t)); 4693 ret = get_errno(getgroups(gidsetsize, grouplist)); 4694 if (!is_error(ret)) { 4695 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 2, 0); 4696 if (!target_grouplist) 4697 goto efault; 4698 for(i = 0;i < gidsetsize; i++) 4699 target_grouplist[i] = tswap16(grouplist[i]); 4700 unlock_user(target_grouplist, arg2, gidsetsize * 2); 4701 } 4702 } 4703 break; 4704 case TARGET_NR_setgroups: 4705 { 4706 int gidsetsize = arg1; 4707 uint16_t *target_grouplist; 4708 gid_t *grouplist; 4709 int i; 4710 4711 grouplist = alloca(gidsetsize * sizeof(gid_t)); 4712 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 2, 1); 4713 if (!target_grouplist) { 4714 ret = -TARGET_EFAULT; 4715 goto fail; 4716 } 4717 for(i = 0;i < gidsetsize; i++) 4718 grouplist[i] = tswap16(target_grouplist[i]); 4719 unlock_user(target_grouplist, arg2, 0); 4720 ret = get_errno(setgroups(gidsetsize, grouplist)); 4721 } 4722 break; 4723 case TARGET_NR_fchown: 4724 ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3))); 4725 break; 4726 #if defined(TARGET_NR_fchownat) && defined(__NR_fchownat) 4727 case TARGET_NR_fchownat: 4728 if (!(p = lock_user_string(arg2))) 4729 goto efault; 4730 ret = get_errno(sys_fchownat(arg1, p, low2highuid(arg3), low2highgid(arg4), arg5)); 4731 unlock_user(p, arg2, 0); 4732 break; 4733 #endif 4734 #ifdef TARGET_NR_setresuid 4735 case TARGET_NR_setresuid: 4736 ret = get_errno(setresuid(low2highuid(arg1), 4737 low2highuid(arg2), 4738 low2highuid(arg3))); 4739 break; 4740 #endif 4741 #ifdef TARGET_NR_getresuid 4742 case TARGET_NR_getresuid: 4743 { 4744 uid_t ruid, euid, suid; 4745 ret = get_errno(getresuid(&ruid, &euid, &suid)); 4746 if (!is_error(ret)) { 4747 tput16(arg1, tswap16(high2lowuid(ruid))); 4748 tput16(arg2, tswap16(high2lowuid(euid))); 4749 tput16(arg3, tswap16(high2lowuid(suid))); 4750 } 4751 } 4752 break; 4753 #endif 4754 #ifdef TARGET_NR_getresgid 4755 case TARGET_NR_setresgid: 4756 ret = get_errno(setresgid(low2highgid(arg1), 4757 low2highgid(arg2), 4758 low2highgid(arg3))); 4759 break; 4760 #endif 4761 #ifdef TARGET_NR_getresgid 4762 case TARGET_NR_getresgid: 4763 { 4764 gid_t rgid, egid, sgid; 4765 ret = get_errno(getresgid(&rgid, &egid, &sgid)); 4766 if (!is_error(ret)) { 4767 tput16(arg1, tswap16(high2lowgid(rgid))); 4768 tput16(arg2, tswap16(high2lowgid(egid))); 4769 tput16(arg3, tswap16(high2lowgid(sgid))); 4770 } 4771 } 4772 break; 4773 #endif 4774 case TARGET_NR_chown: 4775 if (!(p = lock_user_string(arg1))) 4776 goto efault; 4777 ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3))); 4778 unlock_user(p, arg1, 0); 4779 break; 4780 case TARGET_NR_setuid: 4781 ret = get_errno(setuid(low2highuid(arg1))); 4782 break; 4783 case TARGET_NR_setgid: 4784 ret = get_errno(setgid(low2highgid(arg1))); 4785 break; 4786 case TARGET_NR_setfsuid: 4787 ret = get_errno(setfsuid(arg1)); 4788 break; 4789 case TARGET_NR_setfsgid: 4790 ret = get_errno(setfsgid(arg1)); 4791 break; 4792 #endif /* USE_UID16 */ 4793 4794 #ifdef TARGET_NR_lchown32 4795 case TARGET_NR_lchown32: 4796 if (!(p = lock_user_string(arg1))) 4797 goto efault; 4798 ret = get_errno(lchown(p, arg2, arg3)); 4799 unlock_user(p, arg1, 0); 4800 break; 4801 #endif 4802 #ifdef TARGET_NR_getuid32 4803 case TARGET_NR_getuid32: 4804 ret = get_errno(getuid()); 4805 break; 4806 #endif 4807 #ifdef TARGET_NR_getgid32 4808 case TARGET_NR_getgid32: 4809 ret = get_errno(getgid()); 4810 break; 4811 #endif 4812 #ifdef TARGET_NR_geteuid32 4813 case TARGET_NR_geteuid32: 4814 ret = get_errno(geteuid()); 4815 break; 4816 #endif 4817 #ifdef TARGET_NR_getegid32 4818 case TARGET_NR_getegid32: 4819 ret = get_errno(getegid()); 4820 break; 4821 #endif 4822 #ifdef TARGET_NR_setreuid32 4823 case TARGET_NR_setreuid32: 4824 ret = get_errno(setreuid(arg1, arg2)); 4825 break; 4826 #endif 4827 #ifdef TARGET_NR_setregid32 4828 case TARGET_NR_setregid32: 4829 ret = get_errno(setregid(arg1, arg2)); 4830 break; 4831 #endif 4832 #ifdef TARGET_NR_getgroups32 4833 case TARGET_NR_getgroups32: 4834 { 4835 int gidsetsize = arg1; 4836 uint32_t *target_grouplist; 4837 gid_t *grouplist; 4838 int i; 4839 4840 grouplist = alloca(gidsetsize * sizeof(gid_t)); 4841 ret = get_errno(getgroups(gidsetsize, grouplist)); 4842 if (!is_error(ret)) { 4843 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 4, 0); 4844 if (!target_grouplist) { 4845 ret = -TARGET_EFAULT; 4846 goto fail; 4847 } 4848 for(i = 0;i < gidsetsize; i++) 4849 target_grouplist[i] = tswap32(grouplist[i]); 4850 unlock_user(target_grouplist, arg2, gidsetsize * 4); 4851 } 4852 } 4853 break; 4854 #endif 4855 #ifdef TARGET_NR_setgroups32 4856 case TARGET_NR_setgroups32: 4857 { 4858 int gidsetsize = arg1; 4859 uint32_t *target_grouplist; 4860 gid_t *grouplist; 4861 int i; 4862 4863 grouplist = alloca(gidsetsize * sizeof(gid_t)); 4864 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 4, 1); 4865 if (!target_grouplist) { 4866 ret = -TARGET_EFAULT; 4867 goto fail; 4868 } 4869 for(i = 0;i < gidsetsize; i++) 4870 grouplist[i] = tswap32(target_grouplist[i]); 4871 unlock_user(target_grouplist, arg2, 0); 4872 ret = get_errno(setgroups(gidsetsize, grouplist)); 4873 } 4874 break; 4875 #endif 4876 #ifdef TARGET_NR_fchown32 4877 case TARGET_NR_fchown32: 4878 ret = get_errno(fchown(arg1, arg2, arg3)); 4879 break; 4880 #endif 4881 #ifdef TARGET_NR_setresuid32 4882 case TARGET_NR_setresuid32: 4883 ret = get_errno(setresuid(arg1, arg2, arg3)); 4884 break; 4885 #endif 4886 #ifdef TARGET_NR_getresuid32 4887 case TARGET_NR_getresuid32: 4888 { 4889 uid_t ruid, euid, suid; 4890 ret = get_errno(getresuid(&ruid, &euid, &suid)); 4891 if (!is_error(ret)) { 4892 tput32(arg1, tswap32(ruid)); 4893 tput32(arg2, tswap32(euid)); 4894 tput32(arg3, tswap32(suid)); 4895 } 4896 } 4897 break; 4898 #endif 4899 #ifdef TARGET_NR_setresgid32 4900 case TARGET_NR_setresgid32: 4901 ret = get_errno(setresgid(arg1, arg2, arg3)); 4902 break; 4903 #endif 4904 #ifdef TARGET_NR_getresgid32 4905 case TARGET_NR_getresgid32: 4906 { 4907 gid_t rgid, egid, sgid; 4908 ret = get_errno(getresgid(&rgid, &egid, &sgid)); 4909 if (!is_error(ret)) { 4910 tput32(arg1, tswap32(rgid)); 4911 tput32(arg2, tswap32(egid)); 4912 tput32(arg3, tswap32(sgid)); 4913 } 4914 } 4915 break; 4916 #endif 4917 #ifdef TARGET_NR_chown32 4918 case TARGET_NR_chown32: 4919 if (!(p = lock_user_string(arg1))) 4920 goto efault; 4921 ret = get_errno(chown(p, arg2, arg3)); 4922 unlock_user(p, arg1, 0); 4923 break; 4924 #endif 4925 #ifdef TARGET_NR_setuid32 4926 case TARGET_NR_setuid32: 4927 ret = get_errno(setuid(arg1)); 4928 break; 4929 #endif 4930 #ifdef TARGET_NR_setgid32 4931 case TARGET_NR_setgid32: 4932 ret = get_errno(setgid(arg1)); 4933 break; 4934 #endif 4935 #ifdef TARGET_NR_setfsuid32 4936 case TARGET_NR_setfsuid32: 4937 ret = get_errno(setfsuid(arg1)); 4938 break; 4939 #endif 4940 #ifdef TARGET_NR_setfsgid32 4941 case TARGET_NR_setfsgid32: 4942 ret = get_errno(setfsgid(arg1)); 4943 break; 4944 #endif 4945 4946 case TARGET_NR_pivot_root: 4947 goto unimplemented; 4948 #ifdef TARGET_NR_mincore 4949 case TARGET_NR_mincore: 4950 goto unimplemented; 4951 #endif 4952 #ifdef TARGET_NR_madvise 4953 case TARGET_NR_madvise: 4954 /* A straight passthrough may not be safe because qemu sometimes 4955 turns private flie-backed mappings into anonymous mappings. 4956 This will break MADV_DONTNEED. 4957 This is a hint, so ignoring and returning success is ok. */ 4958 ret = get_errno(0); 4959 break; 4960 #endif 4961 #if TARGET_ABI_BITS == 32 4962 case TARGET_NR_fcntl64: 4963 { 4964 int cmd; 4965 struct flock64 fl; 4966 struct target_flock64 *target_fl; 4967 #ifdef TARGET_ARM 4968 struct target_eabi_flock64 *target_efl; 4969 #endif 4970 4971 switch(arg2){ 4972 case TARGET_F_GETLK64: 4973 cmd = F_GETLK64; 4974 break; 4975 case TARGET_F_SETLK64: 4976 cmd = F_SETLK64; 4977 break; 4978 case TARGET_F_SETLKW64: 4979 cmd = F_SETLK64; 4980 break; 4981 default: 4982 cmd = arg2; 4983 break; 4984 } 4985 4986 switch(arg2) { 4987 case TARGET_F_GETLK64: 4988 #ifdef TARGET_ARM 4989 if (((CPUARMState *)cpu_env)->eabi) { 4990 if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1)) { 4991 ret = -TARGET_EFAULT; 4992 goto fail; 4993 } 4994 fl.l_type = tswap16(target_efl->l_type); 4995 fl.l_whence = tswap16(target_efl->l_whence); 4996 fl.l_start = tswap64(target_efl->l_start); 4997 fl.l_len = tswap64(target_efl->l_len); 4998 fl.l_pid = tswapl(target_efl->l_pid); 4999 unlock_user_struct(target_efl, arg3, 0); 5000 } else 5001 #endif 5002 { 5003 if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1)) { 5004 ret = -TARGET_EFAULT; 5005 goto fail; 5006 } 5007 fl.l_type = tswap16(target_fl->l_type); 5008 fl.l_whence = tswap16(target_fl->l_whence); 5009 fl.l_start = tswap64(target_fl->l_start); 5010 fl.l_len = tswap64(target_fl->l_len); 5011 fl.l_pid = tswapl(target_fl->l_pid); 5012 unlock_user_struct(target_fl, arg3, 0); 5013 } 5014 ret = get_errno(fcntl(arg1, cmd, &fl)); 5015 if (ret == 0) { 5016 #ifdef TARGET_ARM 5017 if (((CPUARMState *)cpu_env)->eabi) { 5018 if (!lock_user_struct(VERIFY_WRITE, target_efl, arg3, 0)) { 5019 ret = -TARGET_EFAULT; 5020 goto fail; 5021 } 5022 target_efl->l_type = tswap16(fl.l_type); 5023 target_efl->l_whence = tswap16(fl.l_whence); 5024 target_efl->l_start = tswap64(fl.l_start); 5025 target_efl->l_len = tswap64(fl.l_len); 5026 target_efl->l_pid = tswapl(fl.l_pid); 5027 unlock_user_struct(target_efl, arg3, 1); 5028 } else 5029 #endif 5030 { 5031 if (!lock_user_struct(VERIFY_WRITE, target_fl, arg3, 0)) { 5032 ret = -TARGET_EFAULT; 5033 goto fail; 5034 } 5035 target_fl->l_type = tswap16(fl.l_type); 5036 target_fl->l_whence = tswap16(fl.l_whence); 5037 target_fl->l_start = tswap64(fl.l_start); 5038 target_fl->l_len = tswap64(fl.l_len); 5039 target_fl->l_pid = tswapl(fl.l_pid); 5040 unlock_user_struct(target_fl, arg3, 1); 5041 } 5042 } 5043 break; 5044 5045 case TARGET_F_SETLK64: 5046 case TARGET_F_SETLKW64: 5047 #ifdef TARGET_ARM 5048 if (((CPUARMState *)cpu_env)->eabi) { 5049 if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1)) { 5050 ret = -TARGET_EFAULT; 5051 goto fail; 5052 } 5053 fl.l_type = tswap16(target_efl->l_type); 5054 fl.l_whence = tswap16(target_efl->l_whence); 5055 fl.l_start = tswap64(target_efl->l_start); 5056 fl.l_len = tswap64(target_efl->l_len); 5057 fl.l_pid = tswapl(target_efl->l_pid); 5058 unlock_user_struct(target_efl, arg3, 0); 5059 } else 5060 #endif 5061 { 5062 if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1)) { 5063 ret = -TARGET_EFAULT; 5064 goto fail; 5065 } 5066 fl.l_type = tswap16(target_fl->l_type); 5067 fl.l_whence = tswap16(target_fl->l_whence); 5068 fl.l_start = tswap64(target_fl->l_start); 5069 fl.l_len = tswap64(target_fl->l_len); 5070 fl.l_pid = tswapl(target_fl->l_pid); 5071 unlock_user_struct(target_fl, arg3, 0); 5072 } 5073 ret = get_errno(fcntl(arg1, cmd, &fl)); 5074 break; 5075 default: 5076 ret = get_errno(do_fcntl(arg1, cmd, arg3)); 5077 break; 5078 } 5079 break; 5080 } 5081 #endif 5082 #ifdef TARGET_NR_cacheflush 5083 case TARGET_NR_cacheflush: 5084 /* self-modifying code is handled automatically, so nothing needed */ 5085 ret = 0; 5086 break; 5087 #endif 5088 #ifdef TARGET_NR_security 5089 case TARGET_NR_security: 5090 goto unimplemented; 5091 #endif 5092 #ifdef TARGET_NR_getpagesize 5093 case TARGET_NR_getpagesize: 5094 ret = TARGET_PAGE_SIZE; 5095 break; 5096 #endif 5097 case TARGET_NR_gettid: 5098 ret = get_errno(gettid()); 5099 break; 5100 #ifdef TARGET_NR_readahead 5101 case TARGET_NR_readahead: 5102 goto unimplemented; 5103 #endif 5104 #ifdef TARGET_NR_setxattr 5105 case TARGET_NR_setxattr: 5106 case TARGET_NR_lsetxattr: 5107 case TARGET_NR_fsetxattr: 5108 case TARGET_NR_getxattr: 5109 case TARGET_NR_lgetxattr: 5110 case TARGET_NR_fgetxattr: 5111 case TARGET_NR_listxattr: 5112 case TARGET_NR_llistxattr: 5113 case TARGET_NR_flistxattr: 5114 case TARGET_NR_removexattr: 5115 case TARGET_NR_lremovexattr: 5116 case TARGET_NR_fremovexattr: 5117 goto unimplemented_nowarn; 5118 #endif 5119 #ifdef TARGET_NR_set_thread_area 5120 case TARGET_NR_set_thread_area: 5121 #ifdef TARGET_MIPS 5122 ((CPUMIPSState *) cpu_env)->tls_value = arg1; 5123 ret = 0; 5124 break; 5125 #else 5126 goto unimplemented_nowarn; 5127 #endif 5128 #endif 5129 #ifdef TARGET_NR_get_thread_area 5130 case TARGET_NR_get_thread_area: 5131 goto unimplemented_nowarn; 5132 #endif 5133 #ifdef TARGET_NR_getdomainname 5134 case TARGET_NR_getdomainname: 5135 goto unimplemented_nowarn; 5136 #endif 5137 5138 #ifdef TARGET_NR_clock_gettime 5139 case TARGET_NR_clock_gettime: 5140 { 5141 struct timespec ts; 5142 ret = get_errno(clock_gettime(arg1, &ts)); 5143 if (!is_error(ret)) { 5144 host_to_target_timespec(arg2, &ts); 5145 } 5146 break; 5147 } 5148 #endif 5149 #ifdef TARGET_NR_clock_getres 5150 case TARGET_NR_clock_getres: 5151 { 5152 struct timespec ts; 5153 ret = get_errno(clock_getres(arg1, &ts)); 5154 if (!is_error(ret)) { 5155 host_to_target_timespec(arg2, &ts); 5156 } 5157 break; 5158 } 5159 #endif 5160 5161 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address) 5162 case TARGET_NR_set_tid_address: 5163 ret = get_errno(set_tid_address((int *)g2h(arg1))); 5164 break; 5165 #endif 5166 5167 #if defined(TARGET_NR_tkill) && defined(__NR_tkill) 5168 case TARGET_NR_tkill: 5169 ret = get_errno(sys_tkill((int)arg1, (int)arg2)); 5170 break; 5171 #endif 5172 5173 #if defined(TARGET_NR_tgkill) && defined(__NR_tgkill) 5174 case TARGET_NR_tgkill: 5175 ret = get_errno(sys_tgkill((int)arg1, (int)arg2, (int)arg3)); 5176 break; 5177 #endif 5178 5179 #ifdef TARGET_NR_set_robust_list 5180 case TARGET_NR_set_robust_list: 5181 goto unimplemented_nowarn; 5182 #endif 5183 5184 #if defined(TARGET_NR_utimensat) && defined(__NR_utimensat) 5185 case TARGET_NR_utimensat: 5186 { 5187 struct timespec ts[2]; 5188 target_to_host_timespec(ts, arg3); 5189 target_to_host_timespec(ts+1, arg3+sizeof(struct target_timespec)); 5190 if (!arg2) 5191 ret = get_errno(sys_utimensat(arg1, NULL, ts, arg4)); 5192 else { 5193 if (!(p = lock_user_string(arg2))) { 5194 ret = -TARGET_EFAULT; 5195 goto fail; 5196 } 5197 ret = get_errno(sys_utimensat(arg1, path(p), ts, arg4)); 5198 unlock_user(p, arg2, 0); 5199 } 5200 } 5201 break; 5202 #endif 5203 5204 default: 5205 unimplemented: 5206 gemu_log("qemu: Unsupported syscall: %d\n", num); 5207 #if defined(TARGET_NR_setxattr) || defined(TARGET_NR_get_thread_area) || defined(TARGET_NR_getdomainname) || defined(TARGET_NR_set_robust_list) 5208 unimplemented_nowarn: 5209 #endif 5210 ret = -TARGET_ENOSYS; 5211 break; 5212 } 5213 fail: 5214 #ifdef DEBUG 5215 gemu_log(" = %ld\n", ret); 5216 #endif 5217 if(do_strace) 5218 print_syscall_ret(num, ret); 5219 return ret; 5220 efault: 5221 ret = -TARGET_EFAULT; 5222 goto fail; 5223 } 5224