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