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, see <http://www.gnu.org/licenses/>. 18 */ 19 #define _ATFILE_SOURCE 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 <limits.h> 31 #include <grp.h> 32 #include <sys/types.h> 33 #include <sys/ipc.h> 34 #include <sys/msg.h> 35 #include <sys/wait.h> 36 #include <sys/time.h> 37 #include <sys/stat.h> 38 #include <sys/mount.h> 39 #include <sys/file.h> 40 #include <sys/fsuid.h> 41 #include <sys/personality.h> 42 #include <sys/prctl.h> 43 #include <sys/resource.h> 44 #include <sys/mman.h> 45 #include <sys/swap.h> 46 #include <signal.h> 47 #include <sched.h> 48 #ifdef __ia64__ 49 int __clone2(int (*fn)(void *), void *child_stack_base, 50 size_t stack_size, int flags, void *arg, ...); 51 #endif 52 #include <sys/socket.h> 53 #include <sys/un.h> 54 #include <sys/uio.h> 55 #include <sys/poll.h> 56 #include <sys/times.h> 57 #include <sys/shm.h> 58 #include <sys/sem.h> 59 #include <sys/statfs.h> 60 #include <utime.h> 61 #include <sys/sysinfo.h> 62 #include <sys/utsname.h> 63 //#include <sys/user.h> 64 #include <netinet/ip.h> 65 #include <netinet/tcp.h> 66 #include <linux/wireless.h> 67 #include <linux/icmp.h> 68 #include "qemu-common.h" 69 #ifdef TARGET_GPROF 70 #include <sys/gmon.h> 71 #endif 72 #ifdef CONFIG_EVENTFD 73 #include <sys/eventfd.h> 74 #endif 75 #ifdef CONFIG_EPOLL 76 #include <sys/epoll.h> 77 #endif 78 #ifdef CONFIG_ATTR 79 #include "qemu/xattr.h" 80 #endif 81 #ifdef CONFIG_SENDFILE 82 #include <sys/sendfile.h> 83 #endif 84 85 #define termios host_termios 86 #define winsize host_winsize 87 #define termio host_termio 88 #define sgttyb host_sgttyb /* same as target */ 89 #define tchars host_tchars /* same as target */ 90 #define ltchars host_ltchars /* same as target */ 91 92 #include <linux/termios.h> 93 #include <linux/unistd.h> 94 #include <linux/utsname.h> 95 #include <linux/cdrom.h> 96 #include <linux/hdreg.h> 97 #include <linux/soundcard.h> 98 #include <linux/kd.h> 99 #include <linux/mtio.h> 100 #include <linux/fs.h> 101 #if defined(CONFIG_FIEMAP) 102 #include <linux/fiemap.h> 103 #endif 104 #include <linux/fb.h> 105 #include <linux/vt.h> 106 #include <linux/dm-ioctl.h> 107 #include <linux/reboot.h> 108 #include <linux/route.h> 109 #include "linux_loop.h" 110 #include "cpu-uname.h" 111 112 #include "qemu.h" 113 114 #define CLONE_NPTL_FLAGS2 (CLONE_SETTLS | \ 115 CLONE_PARENT_SETTID | CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID) 116 117 //#define DEBUG 118 119 //#include <linux/msdos_fs.h> 120 #define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct linux_dirent [2]) 121 #define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct linux_dirent [2]) 122 123 124 #undef _syscall0 125 #undef _syscall1 126 #undef _syscall2 127 #undef _syscall3 128 #undef _syscall4 129 #undef _syscall5 130 #undef _syscall6 131 132 #define _syscall0(type,name) \ 133 static type name (void) \ 134 { \ 135 return syscall(__NR_##name); \ 136 } 137 138 #define _syscall1(type,name,type1,arg1) \ 139 static type name (type1 arg1) \ 140 { \ 141 return syscall(__NR_##name, arg1); \ 142 } 143 144 #define _syscall2(type,name,type1,arg1,type2,arg2) \ 145 static type name (type1 arg1,type2 arg2) \ 146 { \ 147 return syscall(__NR_##name, arg1, arg2); \ 148 } 149 150 #define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \ 151 static type name (type1 arg1,type2 arg2,type3 arg3) \ 152 { \ 153 return syscall(__NR_##name, arg1, arg2, arg3); \ 154 } 155 156 #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \ 157 static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4) \ 158 { \ 159 return syscall(__NR_##name, arg1, arg2, arg3, arg4); \ 160 } 161 162 #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \ 163 type5,arg5) \ 164 static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \ 165 { \ 166 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \ 167 } 168 169 170 #define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \ 171 type5,arg5,type6,arg6) \ 172 static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5, \ 173 type6 arg6) \ 174 { \ 175 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \ 176 } 177 178 179 #define __NR_sys_uname __NR_uname 180 #define __NR_sys_getcwd1 __NR_getcwd 181 #define __NR_sys_getdents __NR_getdents 182 #define __NR_sys_getdents64 __NR_getdents64 183 #define __NR_sys_getpriority __NR_getpriority 184 #define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo 185 #define __NR_sys_syslog __NR_syslog 186 #define __NR_sys_tgkill __NR_tgkill 187 #define __NR_sys_tkill __NR_tkill 188 #define __NR_sys_futex __NR_futex 189 #define __NR_sys_inotify_init __NR_inotify_init 190 #define __NR_sys_inotify_add_watch __NR_inotify_add_watch 191 #define __NR_sys_inotify_rm_watch __NR_inotify_rm_watch 192 193 #if defined(__alpha__) || defined (__ia64__) || defined(__x86_64__) || \ 194 defined(__s390x__) 195 #define __NR__llseek __NR_lseek 196 #endif 197 198 #ifdef __NR_gettid 199 _syscall0(int, gettid) 200 #else 201 /* This is a replacement for the host gettid() and must return a host 202 errno. */ 203 static int gettid(void) { 204 return -ENOSYS; 205 } 206 #endif 207 #ifdef __NR_getdents 208 _syscall3(int, sys_getdents, uint, fd, struct linux_dirent *, dirp, uint, count); 209 #endif 210 #if !defined(__NR_getdents) || \ 211 (defined(TARGET_NR_getdents64) && defined(__NR_getdents64)) 212 _syscall3(int, sys_getdents64, uint, fd, struct linux_dirent64 *, dirp, uint, count); 213 #endif 214 #if defined(TARGET_NR__llseek) && defined(__NR_llseek) 215 _syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo, 216 loff_t *, res, uint, wh); 217 #endif 218 _syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo) 219 _syscall3(int,sys_syslog,int,type,char*,bufp,int,len) 220 #if defined(TARGET_NR_tgkill) && defined(__NR_tgkill) 221 _syscall3(int,sys_tgkill,int,tgid,int,pid,int,sig) 222 #endif 223 #if defined(TARGET_NR_tkill) && defined(__NR_tkill) 224 _syscall2(int,sys_tkill,int,tid,int,sig) 225 #endif 226 #ifdef __NR_exit_group 227 _syscall1(int,exit_group,int,error_code) 228 #endif 229 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address) 230 _syscall1(int,set_tid_address,int *,tidptr) 231 #endif 232 #if defined(TARGET_NR_futex) && defined(__NR_futex) 233 _syscall6(int,sys_futex,int *,uaddr,int,op,int,val, 234 const struct timespec *,timeout,int *,uaddr2,int,val3) 235 #endif 236 #define __NR_sys_sched_getaffinity __NR_sched_getaffinity 237 _syscall3(int, sys_sched_getaffinity, pid_t, pid, unsigned int, len, 238 unsigned long *, user_mask_ptr); 239 #define __NR_sys_sched_setaffinity __NR_sched_setaffinity 240 _syscall3(int, sys_sched_setaffinity, pid_t, pid, unsigned int, len, 241 unsigned long *, user_mask_ptr); 242 _syscall4(int, reboot, int, magic1, int, magic2, unsigned int, cmd, 243 void *, arg); 244 245 static bitmask_transtbl fcntl_flags_tbl[] = { 246 { TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, }, 247 { TARGET_O_ACCMODE, TARGET_O_RDWR, O_ACCMODE, O_RDWR, }, 248 { TARGET_O_CREAT, TARGET_O_CREAT, O_CREAT, O_CREAT, }, 249 { TARGET_O_EXCL, TARGET_O_EXCL, O_EXCL, O_EXCL, }, 250 { TARGET_O_NOCTTY, TARGET_O_NOCTTY, O_NOCTTY, O_NOCTTY, }, 251 { TARGET_O_TRUNC, TARGET_O_TRUNC, O_TRUNC, O_TRUNC, }, 252 { TARGET_O_APPEND, TARGET_O_APPEND, O_APPEND, O_APPEND, }, 253 { TARGET_O_NONBLOCK, TARGET_O_NONBLOCK, O_NONBLOCK, O_NONBLOCK, }, 254 { TARGET_O_SYNC, TARGET_O_DSYNC, O_SYNC, O_DSYNC, }, 255 { TARGET_O_SYNC, TARGET_O_SYNC, O_SYNC, O_SYNC, }, 256 { TARGET_FASYNC, TARGET_FASYNC, FASYNC, FASYNC, }, 257 { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, }, 258 { TARGET_O_NOFOLLOW, TARGET_O_NOFOLLOW, O_NOFOLLOW, O_NOFOLLOW, }, 259 #if defined(O_DIRECT) 260 { TARGET_O_DIRECT, TARGET_O_DIRECT, O_DIRECT, O_DIRECT, }, 261 #endif 262 #if defined(O_NOATIME) 263 { TARGET_O_NOATIME, TARGET_O_NOATIME, O_NOATIME, O_NOATIME }, 264 #endif 265 #if defined(O_CLOEXEC) 266 { TARGET_O_CLOEXEC, TARGET_O_CLOEXEC, O_CLOEXEC, O_CLOEXEC }, 267 #endif 268 #if defined(O_PATH) 269 { TARGET_O_PATH, TARGET_O_PATH, O_PATH, O_PATH }, 270 #endif 271 /* Don't terminate the list prematurely on 64-bit host+guest. */ 272 #if TARGET_O_LARGEFILE != 0 || O_LARGEFILE != 0 273 { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, }, 274 #endif 275 { 0, 0, 0, 0 } 276 }; 277 278 #define COPY_UTSNAME_FIELD(dest, src) \ 279 do { \ 280 /* __NEW_UTS_LEN doesn't include terminating null */ \ 281 (void) strncpy((dest), (src), __NEW_UTS_LEN); \ 282 (dest)[__NEW_UTS_LEN] = '\0'; \ 283 } while (0) 284 285 static int sys_uname(struct new_utsname *buf) 286 { 287 struct utsname uts_buf; 288 289 if (uname(&uts_buf) < 0) 290 return (-1); 291 292 /* 293 * Just in case these have some differences, we 294 * translate utsname to new_utsname (which is the 295 * struct linux kernel uses). 296 */ 297 298 memset(buf, 0, sizeof(*buf)); 299 COPY_UTSNAME_FIELD(buf->sysname, uts_buf.sysname); 300 COPY_UTSNAME_FIELD(buf->nodename, uts_buf.nodename); 301 COPY_UTSNAME_FIELD(buf->release, uts_buf.release); 302 COPY_UTSNAME_FIELD(buf->version, uts_buf.version); 303 COPY_UTSNAME_FIELD(buf->machine, uts_buf.machine); 304 #ifdef _GNU_SOURCE 305 COPY_UTSNAME_FIELD(buf->domainname, uts_buf.domainname); 306 #endif 307 return (0); 308 309 #undef COPY_UTSNAME_FIELD 310 } 311 312 static int sys_getcwd1(char *buf, size_t size) 313 { 314 if (getcwd(buf, size) == NULL) { 315 /* getcwd() sets errno */ 316 return (-1); 317 } 318 return strlen(buf)+1; 319 } 320 321 #ifdef TARGET_NR_openat 322 static int sys_openat(int dirfd, const char *pathname, int flags, mode_t mode) 323 { 324 /* 325 * open(2) has extra parameter 'mode' when called with 326 * flag O_CREAT. 327 */ 328 if ((flags & O_CREAT) != 0) { 329 return (openat(dirfd, pathname, flags, mode)); 330 } 331 return (openat(dirfd, pathname, flags)); 332 } 333 #endif 334 335 #ifdef TARGET_NR_utimensat 336 #ifdef CONFIG_UTIMENSAT 337 static int sys_utimensat(int dirfd, const char *pathname, 338 const struct timespec times[2], int flags) 339 { 340 if (pathname == NULL) 341 return futimens(dirfd, times); 342 else 343 return utimensat(dirfd, pathname, times, flags); 344 } 345 #elif defined(__NR_utimensat) 346 #define __NR_sys_utimensat __NR_utimensat 347 _syscall4(int,sys_utimensat,int,dirfd,const char *,pathname, 348 const struct timespec *,tsp,int,flags) 349 #else 350 static int sys_utimensat(int dirfd, const char *pathname, 351 const struct timespec times[2], int flags) 352 { 353 errno = ENOSYS; 354 return -1; 355 } 356 #endif 357 #endif /* TARGET_NR_utimensat */ 358 359 #ifdef CONFIG_INOTIFY 360 #include <sys/inotify.h> 361 362 #if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init) 363 static int sys_inotify_init(void) 364 { 365 return (inotify_init()); 366 } 367 #endif 368 #if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch) 369 static int sys_inotify_add_watch(int fd,const char *pathname, int32_t mask) 370 { 371 return (inotify_add_watch(fd, pathname, mask)); 372 } 373 #endif 374 #if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch) 375 static int sys_inotify_rm_watch(int fd, int32_t wd) 376 { 377 return (inotify_rm_watch(fd, wd)); 378 } 379 #endif 380 #ifdef CONFIG_INOTIFY1 381 #if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1) 382 static int sys_inotify_init1(int flags) 383 { 384 return (inotify_init1(flags)); 385 } 386 #endif 387 #endif 388 #else 389 /* Userspace can usually survive runtime without inotify */ 390 #undef TARGET_NR_inotify_init 391 #undef TARGET_NR_inotify_init1 392 #undef TARGET_NR_inotify_add_watch 393 #undef TARGET_NR_inotify_rm_watch 394 #endif /* CONFIG_INOTIFY */ 395 396 #if defined(TARGET_NR_ppoll) 397 #ifndef __NR_ppoll 398 # define __NR_ppoll -1 399 #endif 400 #define __NR_sys_ppoll __NR_ppoll 401 _syscall5(int, sys_ppoll, struct pollfd *, fds, nfds_t, nfds, 402 struct timespec *, timeout, const __sigset_t *, sigmask, 403 size_t, sigsetsize) 404 #endif 405 406 #if defined(TARGET_NR_pselect6) 407 #ifndef __NR_pselect6 408 # define __NR_pselect6 -1 409 #endif 410 #define __NR_sys_pselect6 __NR_pselect6 411 _syscall6(int, sys_pselect6, int, nfds, fd_set *, readfds, fd_set *, writefds, 412 fd_set *, exceptfds, struct timespec *, timeout, void *, sig); 413 #endif 414 415 #if defined(TARGET_NR_prlimit64) 416 #ifndef __NR_prlimit64 417 # define __NR_prlimit64 -1 418 #endif 419 #define __NR_sys_prlimit64 __NR_prlimit64 420 /* The glibc rlimit structure may not be that used by the underlying syscall */ 421 struct host_rlimit64 { 422 uint64_t rlim_cur; 423 uint64_t rlim_max; 424 }; 425 _syscall4(int, sys_prlimit64, pid_t, pid, int, resource, 426 const struct host_rlimit64 *, new_limit, 427 struct host_rlimit64 *, old_limit) 428 #endif 429 430 /* ARM EABI and MIPS expect 64bit types aligned even on pairs or registers */ 431 #ifdef TARGET_ARM 432 static inline int regpairs_aligned(void *cpu_env) { 433 return ((((CPUARMState *)cpu_env)->eabi) == 1) ; 434 } 435 #elif defined(TARGET_MIPS) 436 static inline int regpairs_aligned(void *cpu_env) { return 1; } 437 #elif defined(TARGET_PPC) && !defined(TARGET_PPC64) 438 /* SysV AVI for PPC32 expects 64bit parameters to be passed on odd/even pairs 439 * of registers which translates to the same as ARM/MIPS, because we start with 440 * r3 as arg1 */ 441 static inline int regpairs_aligned(void *cpu_env) { return 1; } 442 #else 443 static inline int regpairs_aligned(void *cpu_env) { return 0; } 444 #endif 445 446 #define ERRNO_TABLE_SIZE 1200 447 448 /* target_to_host_errno_table[] is initialized from 449 * host_to_target_errno_table[] in syscall_init(). */ 450 static uint16_t target_to_host_errno_table[ERRNO_TABLE_SIZE] = { 451 }; 452 453 /* 454 * This list is the union of errno values overridden in asm-<arch>/errno.h 455 * minus the errnos that are not actually generic to all archs. 456 */ 457 static uint16_t host_to_target_errno_table[ERRNO_TABLE_SIZE] = { 458 [EIDRM] = TARGET_EIDRM, 459 [ECHRNG] = TARGET_ECHRNG, 460 [EL2NSYNC] = TARGET_EL2NSYNC, 461 [EL3HLT] = TARGET_EL3HLT, 462 [EL3RST] = TARGET_EL3RST, 463 [ELNRNG] = TARGET_ELNRNG, 464 [EUNATCH] = TARGET_EUNATCH, 465 [ENOCSI] = TARGET_ENOCSI, 466 [EL2HLT] = TARGET_EL2HLT, 467 [EDEADLK] = TARGET_EDEADLK, 468 [ENOLCK] = TARGET_ENOLCK, 469 [EBADE] = TARGET_EBADE, 470 [EBADR] = TARGET_EBADR, 471 [EXFULL] = TARGET_EXFULL, 472 [ENOANO] = TARGET_ENOANO, 473 [EBADRQC] = TARGET_EBADRQC, 474 [EBADSLT] = TARGET_EBADSLT, 475 [EBFONT] = TARGET_EBFONT, 476 [ENOSTR] = TARGET_ENOSTR, 477 [ENODATA] = TARGET_ENODATA, 478 [ETIME] = TARGET_ETIME, 479 [ENOSR] = TARGET_ENOSR, 480 [ENONET] = TARGET_ENONET, 481 [ENOPKG] = TARGET_ENOPKG, 482 [EREMOTE] = TARGET_EREMOTE, 483 [ENOLINK] = TARGET_ENOLINK, 484 [EADV] = TARGET_EADV, 485 [ESRMNT] = TARGET_ESRMNT, 486 [ECOMM] = TARGET_ECOMM, 487 [EPROTO] = TARGET_EPROTO, 488 [EDOTDOT] = TARGET_EDOTDOT, 489 [EMULTIHOP] = TARGET_EMULTIHOP, 490 [EBADMSG] = TARGET_EBADMSG, 491 [ENAMETOOLONG] = TARGET_ENAMETOOLONG, 492 [EOVERFLOW] = TARGET_EOVERFLOW, 493 [ENOTUNIQ] = TARGET_ENOTUNIQ, 494 [EBADFD] = TARGET_EBADFD, 495 [EREMCHG] = TARGET_EREMCHG, 496 [ELIBACC] = TARGET_ELIBACC, 497 [ELIBBAD] = TARGET_ELIBBAD, 498 [ELIBSCN] = TARGET_ELIBSCN, 499 [ELIBMAX] = TARGET_ELIBMAX, 500 [ELIBEXEC] = TARGET_ELIBEXEC, 501 [EILSEQ] = TARGET_EILSEQ, 502 [ENOSYS] = TARGET_ENOSYS, 503 [ELOOP] = TARGET_ELOOP, 504 [ERESTART] = TARGET_ERESTART, 505 [ESTRPIPE] = TARGET_ESTRPIPE, 506 [ENOTEMPTY] = TARGET_ENOTEMPTY, 507 [EUSERS] = TARGET_EUSERS, 508 [ENOTSOCK] = TARGET_ENOTSOCK, 509 [EDESTADDRREQ] = TARGET_EDESTADDRREQ, 510 [EMSGSIZE] = TARGET_EMSGSIZE, 511 [EPROTOTYPE] = TARGET_EPROTOTYPE, 512 [ENOPROTOOPT] = TARGET_ENOPROTOOPT, 513 [EPROTONOSUPPORT] = TARGET_EPROTONOSUPPORT, 514 [ESOCKTNOSUPPORT] = TARGET_ESOCKTNOSUPPORT, 515 [EOPNOTSUPP] = TARGET_EOPNOTSUPP, 516 [EPFNOSUPPORT] = TARGET_EPFNOSUPPORT, 517 [EAFNOSUPPORT] = TARGET_EAFNOSUPPORT, 518 [EADDRINUSE] = TARGET_EADDRINUSE, 519 [EADDRNOTAVAIL] = TARGET_EADDRNOTAVAIL, 520 [ENETDOWN] = TARGET_ENETDOWN, 521 [ENETUNREACH] = TARGET_ENETUNREACH, 522 [ENETRESET] = TARGET_ENETRESET, 523 [ECONNABORTED] = TARGET_ECONNABORTED, 524 [ECONNRESET] = TARGET_ECONNRESET, 525 [ENOBUFS] = TARGET_ENOBUFS, 526 [EISCONN] = TARGET_EISCONN, 527 [ENOTCONN] = TARGET_ENOTCONN, 528 [EUCLEAN] = TARGET_EUCLEAN, 529 [ENOTNAM] = TARGET_ENOTNAM, 530 [ENAVAIL] = TARGET_ENAVAIL, 531 [EISNAM] = TARGET_EISNAM, 532 [EREMOTEIO] = TARGET_EREMOTEIO, 533 [ESHUTDOWN] = TARGET_ESHUTDOWN, 534 [ETOOMANYREFS] = TARGET_ETOOMANYREFS, 535 [ETIMEDOUT] = TARGET_ETIMEDOUT, 536 [ECONNREFUSED] = TARGET_ECONNREFUSED, 537 [EHOSTDOWN] = TARGET_EHOSTDOWN, 538 [EHOSTUNREACH] = TARGET_EHOSTUNREACH, 539 [EALREADY] = TARGET_EALREADY, 540 [EINPROGRESS] = TARGET_EINPROGRESS, 541 [ESTALE] = TARGET_ESTALE, 542 [ECANCELED] = TARGET_ECANCELED, 543 [ENOMEDIUM] = TARGET_ENOMEDIUM, 544 [EMEDIUMTYPE] = TARGET_EMEDIUMTYPE, 545 #ifdef ENOKEY 546 [ENOKEY] = TARGET_ENOKEY, 547 #endif 548 #ifdef EKEYEXPIRED 549 [EKEYEXPIRED] = TARGET_EKEYEXPIRED, 550 #endif 551 #ifdef EKEYREVOKED 552 [EKEYREVOKED] = TARGET_EKEYREVOKED, 553 #endif 554 #ifdef EKEYREJECTED 555 [EKEYREJECTED] = TARGET_EKEYREJECTED, 556 #endif 557 #ifdef EOWNERDEAD 558 [EOWNERDEAD] = TARGET_EOWNERDEAD, 559 #endif 560 #ifdef ENOTRECOVERABLE 561 [ENOTRECOVERABLE] = TARGET_ENOTRECOVERABLE, 562 #endif 563 }; 564 565 static inline int host_to_target_errno(int err) 566 { 567 if(host_to_target_errno_table[err]) 568 return host_to_target_errno_table[err]; 569 return err; 570 } 571 572 static inline int target_to_host_errno(int err) 573 { 574 if (target_to_host_errno_table[err]) 575 return target_to_host_errno_table[err]; 576 return err; 577 } 578 579 static inline abi_long get_errno(abi_long ret) 580 { 581 if (ret == -1) 582 return -host_to_target_errno(errno); 583 else 584 return ret; 585 } 586 587 static inline int is_error(abi_long ret) 588 { 589 return (abi_ulong)ret >= (abi_ulong)(-4096); 590 } 591 592 char *target_strerror(int err) 593 { 594 if ((err >= ERRNO_TABLE_SIZE) || (err < 0)) { 595 return NULL; 596 } 597 return strerror(target_to_host_errno(err)); 598 } 599 600 static abi_ulong target_brk; 601 static abi_ulong target_original_brk; 602 static abi_ulong brk_page; 603 604 void target_set_brk(abi_ulong new_brk) 605 { 606 target_original_brk = target_brk = HOST_PAGE_ALIGN(new_brk); 607 brk_page = HOST_PAGE_ALIGN(target_brk); 608 } 609 610 //#define DEBUGF_BRK(message, args...) do { fprintf(stderr, (message), ## args); } while (0) 611 #define DEBUGF_BRK(message, args...) 612 613 /* do_brk() must return target values and target errnos. */ 614 abi_long do_brk(abi_ulong new_brk) 615 { 616 abi_long mapped_addr; 617 int new_alloc_size; 618 619 DEBUGF_BRK("do_brk(" TARGET_ABI_FMT_lx ") -> ", new_brk); 620 621 if (!new_brk) { 622 DEBUGF_BRK(TARGET_ABI_FMT_lx " (!new_brk)\n", target_brk); 623 return target_brk; 624 } 625 if (new_brk < target_original_brk) { 626 DEBUGF_BRK(TARGET_ABI_FMT_lx " (new_brk < target_original_brk)\n", 627 target_brk); 628 return target_brk; 629 } 630 631 /* If the new brk is less than the highest page reserved to the 632 * target heap allocation, set it and we're almost done... */ 633 if (new_brk <= brk_page) { 634 /* Heap contents are initialized to zero, as for anonymous 635 * mapped pages. */ 636 if (new_brk > target_brk) { 637 memset(g2h(target_brk), 0, new_brk - target_brk); 638 } 639 target_brk = new_brk; 640 DEBUGF_BRK(TARGET_ABI_FMT_lx " (new_brk <= brk_page)\n", target_brk); 641 return target_brk; 642 } 643 644 /* We need to allocate more memory after the brk... Note that 645 * we don't use MAP_FIXED because that will map over the top of 646 * any existing mapping (like the one with the host libc or qemu 647 * itself); instead we treat "mapped but at wrong address" as 648 * a failure and unmap again. 649 */ 650 new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page); 651 mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size, 652 PROT_READ|PROT_WRITE, 653 MAP_ANON|MAP_PRIVATE, 0, 0)); 654 655 if (mapped_addr == brk_page) { 656 /* Heap contents are initialized to zero, as for anonymous 657 * mapped pages. Technically the new pages are already 658 * initialized to zero since they *are* anonymous mapped 659 * pages, however we have to take care with the contents that 660 * come from the remaining part of the previous page: it may 661 * contains garbage data due to a previous heap usage (grown 662 * then shrunken). */ 663 memset(g2h(target_brk), 0, brk_page - target_brk); 664 665 target_brk = new_brk; 666 brk_page = HOST_PAGE_ALIGN(target_brk); 667 DEBUGF_BRK(TARGET_ABI_FMT_lx " (mapped_addr == brk_page)\n", 668 target_brk); 669 return target_brk; 670 } else if (mapped_addr != -1) { 671 /* Mapped but at wrong address, meaning there wasn't actually 672 * enough space for this brk. 673 */ 674 target_munmap(mapped_addr, new_alloc_size); 675 mapped_addr = -1; 676 DEBUGF_BRK(TARGET_ABI_FMT_lx " (mapped_addr != -1)\n", target_brk); 677 } 678 else { 679 DEBUGF_BRK(TARGET_ABI_FMT_lx " (otherwise)\n", target_brk); 680 } 681 682 #if defined(TARGET_ALPHA) 683 /* We (partially) emulate OSF/1 on Alpha, which requires we 684 return a proper errno, not an unchanged brk value. */ 685 return -TARGET_ENOMEM; 686 #endif 687 /* For everything else, return the previous break. */ 688 return target_brk; 689 } 690 691 static inline abi_long copy_from_user_fdset(fd_set *fds, 692 abi_ulong target_fds_addr, 693 int n) 694 { 695 int i, nw, j, k; 696 abi_ulong b, *target_fds; 697 698 nw = (n + TARGET_ABI_BITS - 1) / TARGET_ABI_BITS; 699 if (!(target_fds = lock_user(VERIFY_READ, 700 target_fds_addr, 701 sizeof(abi_ulong) * nw, 702 1))) 703 return -TARGET_EFAULT; 704 705 FD_ZERO(fds); 706 k = 0; 707 for (i = 0; i < nw; i++) { 708 /* grab the abi_ulong */ 709 __get_user(b, &target_fds[i]); 710 for (j = 0; j < TARGET_ABI_BITS; j++) { 711 /* check the bit inside the abi_ulong */ 712 if ((b >> j) & 1) 713 FD_SET(k, fds); 714 k++; 715 } 716 } 717 718 unlock_user(target_fds, target_fds_addr, 0); 719 720 return 0; 721 } 722 723 static inline abi_ulong copy_from_user_fdset_ptr(fd_set *fds, fd_set **fds_ptr, 724 abi_ulong target_fds_addr, 725 int n) 726 { 727 if (target_fds_addr) { 728 if (copy_from_user_fdset(fds, target_fds_addr, n)) 729 return -TARGET_EFAULT; 730 *fds_ptr = fds; 731 } else { 732 *fds_ptr = NULL; 733 } 734 return 0; 735 } 736 737 static inline abi_long copy_to_user_fdset(abi_ulong target_fds_addr, 738 const fd_set *fds, 739 int n) 740 { 741 int i, nw, j, k; 742 abi_long v; 743 abi_ulong *target_fds; 744 745 nw = (n + TARGET_ABI_BITS - 1) / TARGET_ABI_BITS; 746 if (!(target_fds = lock_user(VERIFY_WRITE, 747 target_fds_addr, 748 sizeof(abi_ulong) * nw, 749 0))) 750 return -TARGET_EFAULT; 751 752 k = 0; 753 for (i = 0; i < nw; i++) { 754 v = 0; 755 for (j = 0; j < TARGET_ABI_BITS; j++) { 756 v |= ((abi_ulong)(FD_ISSET(k, fds) != 0) << j); 757 k++; 758 } 759 __put_user(v, &target_fds[i]); 760 } 761 762 unlock_user(target_fds, target_fds_addr, sizeof(abi_ulong) * nw); 763 764 return 0; 765 } 766 767 #if defined(__alpha__) 768 #define HOST_HZ 1024 769 #else 770 #define HOST_HZ 100 771 #endif 772 773 static inline abi_long host_to_target_clock_t(long ticks) 774 { 775 #if HOST_HZ == TARGET_HZ 776 return ticks; 777 #else 778 return ((int64_t)ticks * TARGET_HZ) / HOST_HZ; 779 #endif 780 } 781 782 static inline abi_long host_to_target_rusage(abi_ulong target_addr, 783 const struct rusage *rusage) 784 { 785 struct target_rusage *target_rusage; 786 787 if (!lock_user_struct(VERIFY_WRITE, target_rusage, target_addr, 0)) 788 return -TARGET_EFAULT; 789 target_rusage->ru_utime.tv_sec = tswapal(rusage->ru_utime.tv_sec); 790 target_rusage->ru_utime.tv_usec = tswapal(rusage->ru_utime.tv_usec); 791 target_rusage->ru_stime.tv_sec = tswapal(rusage->ru_stime.tv_sec); 792 target_rusage->ru_stime.tv_usec = tswapal(rusage->ru_stime.tv_usec); 793 target_rusage->ru_maxrss = tswapal(rusage->ru_maxrss); 794 target_rusage->ru_ixrss = tswapal(rusage->ru_ixrss); 795 target_rusage->ru_idrss = tswapal(rusage->ru_idrss); 796 target_rusage->ru_isrss = tswapal(rusage->ru_isrss); 797 target_rusage->ru_minflt = tswapal(rusage->ru_minflt); 798 target_rusage->ru_majflt = tswapal(rusage->ru_majflt); 799 target_rusage->ru_nswap = tswapal(rusage->ru_nswap); 800 target_rusage->ru_inblock = tswapal(rusage->ru_inblock); 801 target_rusage->ru_oublock = tswapal(rusage->ru_oublock); 802 target_rusage->ru_msgsnd = tswapal(rusage->ru_msgsnd); 803 target_rusage->ru_msgrcv = tswapal(rusage->ru_msgrcv); 804 target_rusage->ru_nsignals = tswapal(rusage->ru_nsignals); 805 target_rusage->ru_nvcsw = tswapal(rusage->ru_nvcsw); 806 target_rusage->ru_nivcsw = tswapal(rusage->ru_nivcsw); 807 unlock_user_struct(target_rusage, target_addr, 1); 808 809 return 0; 810 } 811 812 static inline rlim_t target_to_host_rlim(abi_ulong target_rlim) 813 { 814 abi_ulong target_rlim_swap; 815 rlim_t result; 816 817 target_rlim_swap = tswapal(target_rlim); 818 if (target_rlim_swap == TARGET_RLIM_INFINITY) 819 return RLIM_INFINITY; 820 821 result = target_rlim_swap; 822 if (target_rlim_swap != (rlim_t)result) 823 return RLIM_INFINITY; 824 825 return result; 826 } 827 828 static inline abi_ulong host_to_target_rlim(rlim_t rlim) 829 { 830 abi_ulong target_rlim_swap; 831 abi_ulong result; 832 833 if (rlim == RLIM_INFINITY || rlim != (abi_long)rlim) 834 target_rlim_swap = TARGET_RLIM_INFINITY; 835 else 836 target_rlim_swap = rlim; 837 result = tswapal(target_rlim_swap); 838 839 return result; 840 } 841 842 static inline int target_to_host_resource(int code) 843 { 844 switch (code) { 845 case TARGET_RLIMIT_AS: 846 return RLIMIT_AS; 847 case TARGET_RLIMIT_CORE: 848 return RLIMIT_CORE; 849 case TARGET_RLIMIT_CPU: 850 return RLIMIT_CPU; 851 case TARGET_RLIMIT_DATA: 852 return RLIMIT_DATA; 853 case TARGET_RLIMIT_FSIZE: 854 return RLIMIT_FSIZE; 855 case TARGET_RLIMIT_LOCKS: 856 return RLIMIT_LOCKS; 857 case TARGET_RLIMIT_MEMLOCK: 858 return RLIMIT_MEMLOCK; 859 case TARGET_RLIMIT_MSGQUEUE: 860 return RLIMIT_MSGQUEUE; 861 case TARGET_RLIMIT_NICE: 862 return RLIMIT_NICE; 863 case TARGET_RLIMIT_NOFILE: 864 return RLIMIT_NOFILE; 865 case TARGET_RLIMIT_NPROC: 866 return RLIMIT_NPROC; 867 case TARGET_RLIMIT_RSS: 868 return RLIMIT_RSS; 869 case TARGET_RLIMIT_RTPRIO: 870 return RLIMIT_RTPRIO; 871 case TARGET_RLIMIT_SIGPENDING: 872 return RLIMIT_SIGPENDING; 873 case TARGET_RLIMIT_STACK: 874 return RLIMIT_STACK; 875 default: 876 return code; 877 } 878 } 879 880 static inline abi_long copy_from_user_timeval(struct timeval *tv, 881 abi_ulong target_tv_addr) 882 { 883 struct target_timeval *target_tv; 884 885 if (!lock_user_struct(VERIFY_READ, target_tv, target_tv_addr, 1)) 886 return -TARGET_EFAULT; 887 888 __get_user(tv->tv_sec, &target_tv->tv_sec); 889 __get_user(tv->tv_usec, &target_tv->tv_usec); 890 891 unlock_user_struct(target_tv, target_tv_addr, 0); 892 893 return 0; 894 } 895 896 static inline abi_long copy_to_user_timeval(abi_ulong target_tv_addr, 897 const struct timeval *tv) 898 { 899 struct target_timeval *target_tv; 900 901 if (!lock_user_struct(VERIFY_WRITE, target_tv, target_tv_addr, 0)) 902 return -TARGET_EFAULT; 903 904 __put_user(tv->tv_sec, &target_tv->tv_sec); 905 __put_user(tv->tv_usec, &target_tv->tv_usec); 906 907 unlock_user_struct(target_tv, target_tv_addr, 1); 908 909 return 0; 910 } 911 912 #if defined(TARGET_NR_mq_open) && defined(__NR_mq_open) 913 #include <mqueue.h> 914 915 static inline abi_long copy_from_user_mq_attr(struct mq_attr *attr, 916 abi_ulong target_mq_attr_addr) 917 { 918 struct target_mq_attr *target_mq_attr; 919 920 if (!lock_user_struct(VERIFY_READ, target_mq_attr, 921 target_mq_attr_addr, 1)) 922 return -TARGET_EFAULT; 923 924 __get_user(attr->mq_flags, &target_mq_attr->mq_flags); 925 __get_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg); 926 __get_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize); 927 __get_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs); 928 929 unlock_user_struct(target_mq_attr, target_mq_attr_addr, 0); 930 931 return 0; 932 } 933 934 static inline abi_long copy_to_user_mq_attr(abi_ulong target_mq_attr_addr, 935 const struct mq_attr *attr) 936 { 937 struct target_mq_attr *target_mq_attr; 938 939 if (!lock_user_struct(VERIFY_WRITE, target_mq_attr, 940 target_mq_attr_addr, 0)) 941 return -TARGET_EFAULT; 942 943 __put_user(attr->mq_flags, &target_mq_attr->mq_flags); 944 __put_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg); 945 __put_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize); 946 __put_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs); 947 948 unlock_user_struct(target_mq_attr, target_mq_attr_addr, 1); 949 950 return 0; 951 } 952 #endif 953 954 #if defined(TARGET_NR_select) || defined(TARGET_NR__newselect) 955 /* do_select() must return target values and target errnos. */ 956 static abi_long do_select(int n, 957 abi_ulong rfd_addr, abi_ulong wfd_addr, 958 abi_ulong efd_addr, abi_ulong target_tv_addr) 959 { 960 fd_set rfds, wfds, efds; 961 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr; 962 struct timeval tv, *tv_ptr; 963 abi_long ret; 964 965 ret = copy_from_user_fdset_ptr(&rfds, &rfds_ptr, rfd_addr, n); 966 if (ret) { 967 return ret; 968 } 969 ret = copy_from_user_fdset_ptr(&wfds, &wfds_ptr, wfd_addr, n); 970 if (ret) { 971 return ret; 972 } 973 ret = copy_from_user_fdset_ptr(&efds, &efds_ptr, efd_addr, n); 974 if (ret) { 975 return ret; 976 } 977 978 if (target_tv_addr) { 979 if (copy_from_user_timeval(&tv, target_tv_addr)) 980 return -TARGET_EFAULT; 981 tv_ptr = &tv; 982 } else { 983 tv_ptr = NULL; 984 } 985 986 ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr)); 987 988 if (!is_error(ret)) { 989 if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n)) 990 return -TARGET_EFAULT; 991 if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n)) 992 return -TARGET_EFAULT; 993 if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n)) 994 return -TARGET_EFAULT; 995 996 if (target_tv_addr && copy_to_user_timeval(target_tv_addr, &tv)) 997 return -TARGET_EFAULT; 998 } 999 1000 return ret; 1001 } 1002 #endif 1003 1004 static abi_long do_pipe2(int host_pipe[], int flags) 1005 { 1006 #ifdef CONFIG_PIPE2 1007 return pipe2(host_pipe, flags); 1008 #else 1009 return -ENOSYS; 1010 #endif 1011 } 1012 1013 static abi_long do_pipe(void *cpu_env, abi_ulong pipedes, 1014 int flags, int is_pipe2) 1015 { 1016 int host_pipe[2]; 1017 abi_long ret; 1018 ret = flags ? do_pipe2(host_pipe, flags) : pipe(host_pipe); 1019 1020 if (is_error(ret)) 1021 return get_errno(ret); 1022 1023 /* Several targets have special calling conventions for the original 1024 pipe syscall, but didn't replicate this into the pipe2 syscall. */ 1025 if (!is_pipe2) { 1026 #if defined(TARGET_ALPHA) 1027 ((CPUAlphaState *)cpu_env)->ir[IR_A4] = host_pipe[1]; 1028 return host_pipe[0]; 1029 #elif defined(TARGET_MIPS) 1030 ((CPUMIPSState*)cpu_env)->active_tc.gpr[3] = host_pipe[1]; 1031 return host_pipe[0]; 1032 #elif defined(TARGET_SH4) 1033 ((CPUSH4State*)cpu_env)->gregs[1] = host_pipe[1]; 1034 return host_pipe[0]; 1035 #elif defined(TARGET_SPARC) 1036 ((CPUSPARCState*)cpu_env)->regwptr[1] = host_pipe[1]; 1037 return host_pipe[0]; 1038 #endif 1039 } 1040 1041 if (put_user_s32(host_pipe[0], pipedes) 1042 || put_user_s32(host_pipe[1], pipedes + sizeof(host_pipe[0]))) 1043 return -TARGET_EFAULT; 1044 return get_errno(ret); 1045 } 1046 1047 static inline abi_long target_to_host_ip_mreq(struct ip_mreqn *mreqn, 1048 abi_ulong target_addr, 1049 socklen_t len) 1050 { 1051 struct target_ip_mreqn *target_smreqn; 1052 1053 target_smreqn = lock_user(VERIFY_READ, target_addr, len, 1); 1054 if (!target_smreqn) 1055 return -TARGET_EFAULT; 1056 mreqn->imr_multiaddr.s_addr = target_smreqn->imr_multiaddr.s_addr; 1057 mreqn->imr_address.s_addr = target_smreqn->imr_address.s_addr; 1058 if (len == sizeof(struct target_ip_mreqn)) 1059 mreqn->imr_ifindex = tswapal(target_smreqn->imr_ifindex); 1060 unlock_user(target_smreqn, target_addr, 0); 1061 1062 return 0; 1063 } 1064 1065 static inline abi_long target_to_host_sockaddr(struct sockaddr *addr, 1066 abi_ulong target_addr, 1067 socklen_t len) 1068 { 1069 const socklen_t unix_maxlen = sizeof (struct sockaddr_un); 1070 sa_family_t sa_family; 1071 struct target_sockaddr *target_saddr; 1072 1073 target_saddr = lock_user(VERIFY_READ, target_addr, len, 1); 1074 if (!target_saddr) 1075 return -TARGET_EFAULT; 1076 1077 sa_family = tswap16(target_saddr->sa_family); 1078 1079 /* Oops. The caller might send a incomplete sun_path; sun_path 1080 * must be terminated by \0 (see the manual page), but 1081 * unfortunately it is quite common to specify sockaddr_un 1082 * length as "strlen(x->sun_path)" while it should be 1083 * "strlen(...) + 1". We'll fix that here if needed. 1084 * Linux kernel has a similar feature. 1085 */ 1086 1087 if (sa_family == AF_UNIX) { 1088 if (len < unix_maxlen && len > 0) { 1089 char *cp = (char*)target_saddr; 1090 1091 if ( cp[len-1] && !cp[len] ) 1092 len++; 1093 } 1094 if (len > unix_maxlen) 1095 len = unix_maxlen; 1096 } 1097 1098 memcpy(addr, target_saddr, len); 1099 addr->sa_family = sa_family; 1100 unlock_user(target_saddr, target_addr, 0); 1101 1102 return 0; 1103 } 1104 1105 static inline abi_long host_to_target_sockaddr(abi_ulong target_addr, 1106 struct sockaddr *addr, 1107 socklen_t len) 1108 { 1109 struct target_sockaddr *target_saddr; 1110 1111 target_saddr = lock_user(VERIFY_WRITE, target_addr, len, 0); 1112 if (!target_saddr) 1113 return -TARGET_EFAULT; 1114 memcpy(target_saddr, addr, len); 1115 target_saddr->sa_family = tswap16(addr->sa_family); 1116 unlock_user(target_saddr, target_addr, len); 1117 1118 return 0; 1119 } 1120 1121 static inline abi_long target_to_host_cmsg(struct msghdr *msgh, 1122 struct target_msghdr *target_msgh) 1123 { 1124 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh); 1125 abi_long msg_controllen; 1126 abi_ulong target_cmsg_addr; 1127 struct target_cmsghdr *target_cmsg; 1128 socklen_t space = 0; 1129 1130 msg_controllen = tswapal(target_msgh->msg_controllen); 1131 if (msg_controllen < sizeof (struct target_cmsghdr)) 1132 goto the_end; 1133 target_cmsg_addr = tswapal(target_msgh->msg_control); 1134 target_cmsg = lock_user(VERIFY_READ, target_cmsg_addr, msg_controllen, 1); 1135 if (!target_cmsg) 1136 return -TARGET_EFAULT; 1137 1138 while (cmsg && target_cmsg) { 1139 void *data = CMSG_DATA(cmsg); 1140 void *target_data = TARGET_CMSG_DATA(target_cmsg); 1141 1142 int len = tswapal(target_cmsg->cmsg_len) 1143 - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr)); 1144 1145 space += CMSG_SPACE(len); 1146 if (space > msgh->msg_controllen) { 1147 space -= CMSG_SPACE(len); 1148 gemu_log("Host cmsg overflow\n"); 1149 break; 1150 } 1151 1152 cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level); 1153 cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type); 1154 cmsg->cmsg_len = CMSG_LEN(len); 1155 1156 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) { 1157 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type); 1158 memcpy(data, target_data, len); 1159 } else { 1160 int *fd = (int *)data; 1161 int *target_fd = (int *)target_data; 1162 int i, numfds = len / sizeof(int); 1163 1164 for (i = 0; i < numfds; i++) 1165 fd[i] = tswap32(target_fd[i]); 1166 } 1167 1168 cmsg = CMSG_NXTHDR(msgh, cmsg); 1169 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg); 1170 } 1171 unlock_user(target_cmsg, target_cmsg_addr, 0); 1172 the_end: 1173 msgh->msg_controllen = space; 1174 return 0; 1175 } 1176 1177 static inline abi_long host_to_target_cmsg(struct target_msghdr *target_msgh, 1178 struct msghdr *msgh) 1179 { 1180 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh); 1181 abi_long msg_controllen; 1182 abi_ulong target_cmsg_addr; 1183 struct target_cmsghdr *target_cmsg; 1184 socklen_t space = 0; 1185 1186 msg_controllen = tswapal(target_msgh->msg_controllen); 1187 if (msg_controllen < sizeof (struct target_cmsghdr)) 1188 goto the_end; 1189 target_cmsg_addr = tswapal(target_msgh->msg_control); 1190 target_cmsg = lock_user(VERIFY_WRITE, target_cmsg_addr, msg_controllen, 0); 1191 if (!target_cmsg) 1192 return -TARGET_EFAULT; 1193 1194 while (cmsg && target_cmsg) { 1195 void *data = CMSG_DATA(cmsg); 1196 void *target_data = TARGET_CMSG_DATA(target_cmsg); 1197 1198 int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr)); 1199 1200 space += TARGET_CMSG_SPACE(len); 1201 if (space > msg_controllen) { 1202 space -= TARGET_CMSG_SPACE(len); 1203 gemu_log("Target cmsg overflow\n"); 1204 break; 1205 } 1206 1207 target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level); 1208 target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type); 1209 target_cmsg->cmsg_len = tswapal(TARGET_CMSG_LEN(len)); 1210 1211 if ((cmsg->cmsg_level == TARGET_SOL_SOCKET) && 1212 (cmsg->cmsg_type == SCM_RIGHTS)) { 1213 int *fd = (int *)data; 1214 int *target_fd = (int *)target_data; 1215 int i, numfds = len / sizeof(int); 1216 1217 for (i = 0; i < numfds; i++) 1218 target_fd[i] = tswap32(fd[i]); 1219 } else if ((cmsg->cmsg_level == TARGET_SOL_SOCKET) && 1220 (cmsg->cmsg_type == SO_TIMESTAMP) && 1221 (len == sizeof(struct timeval))) { 1222 /* copy struct timeval to target */ 1223 struct timeval *tv = (struct timeval *)data; 1224 struct target_timeval *target_tv = 1225 (struct target_timeval *)target_data; 1226 1227 target_tv->tv_sec = tswapal(tv->tv_sec); 1228 target_tv->tv_usec = tswapal(tv->tv_usec); 1229 } else { 1230 gemu_log("Unsupported ancillary data: %d/%d\n", 1231 cmsg->cmsg_level, cmsg->cmsg_type); 1232 memcpy(target_data, data, len); 1233 } 1234 1235 cmsg = CMSG_NXTHDR(msgh, cmsg); 1236 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg); 1237 } 1238 unlock_user(target_cmsg, target_cmsg_addr, space); 1239 the_end: 1240 target_msgh->msg_controllen = tswapal(space); 1241 return 0; 1242 } 1243 1244 /* do_setsockopt() Must return target values and target errnos. */ 1245 static abi_long do_setsockopt(int sockfd, int level, int optname, 1246 abi_ulong optval_addr, socklen_t optlen) 1247 { 1248 abi_long ret; 1249 int val; 1250 struct ip_mreqn *ip_mreq; 1251 struct ip_mreq_source *ip_mreq_source; 1252 1253 switch(level) { 1254 case SOL_TCP: 1255 /* TCP options all take an 'int' value. */ 1256 if (optlen < sizeof(uint32_t)) 1257 return -TARGET_EINVAL; 1258 1259 if (get_user_u32(val, optval_addr)) 1260 return -TARGET_EFAULT; 1261 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val))); 1262 break; 1263 case SOL_IP: 1264 switch(optname) { 1265 case IP_TOS: 1266 case IP_TTL: 1267 case IP_HDRINCL: 1268 case IP_ROUTER_ALERT: 1269 case IP_RECVOPTS: 1270 case IP_RETOPTS: 1271 case IP_PKTINFO: 1272 case IP_MTU_DISCOVER: 1273 case IP_RECVERR: 1274 case IP_RECVTOS: 1275 #ifdef IP_FREEBIND 1276 case IP_FREEBIND: 1277 #endif 1278 case IP_MULTICAST_TTL: 1279 case IP_MULTICAST_LOOP: 1280 val = 0; 1281 if (optlen >= sizeof(uint32_t)) { 1282 if (get_user_u32(val, optval_addr)) 1283 return -TARGET_EFAULT; 1284 } else if (optlen >= 1) { 1285 if (get_user_u8(val, optval_addr)) 1286 return -TARGET_EFAULT; 1287 } 1288 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val))); 1289 break; 1290 case IP_ADD_MEMBERSHIP: 1291 case IP_DROP_MEMBERSHIP: 1292 if (optlen < sizeof (struct target_ip_mreq) || 1293 optlen > sizeof (struct target_ip_mreqn)) 1294 return -TARGET_EINVAL; 1295 1296 ip_mreq = (struct ip_mreqn *) alloca(optlen); 1297 target_to_host_ip_mreq(ip_mreq, optval_addr, optlen); 1298 ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq, optlen)); 1299 break; 1300 1301 case IP_BLOCK_SOURCE: 1302 case IP_UNBLOCK_SOURCE: 1303 case IP_ADD_SOURCE_MEMBERSHIP: 1304 case IP_DROP_SOURCE_MEMBERSHIP: 1305 if (optlen != sizeof (struct target_ip_mreq_source)) 1306 return -TARGET_EINVAL; 1307 1308 ip_mreq_source = lock_user(VERIFY_READ, optval_addr, optlen, 1); 1309 ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq_source, optlen)); 1310 unlock_user (ip_mreq_source, optval_addr, 0); 1311 break; 1312 1313 default: 1314 goto unimplemented; 1315 } 1316 break; 1317 case SOL_RAW: 1318 switch (optname) { 1319 case ICMP_FILTER: 1320 /* struct icmp_filter takes an u32 value */ 1321 if (optlen < sizeof(uint32_t)) { 1322 return -TARGET_EINVAL; 1323 } 1324 1325 if (get_user_u32(val, optval_addr)) { 1326 return -TARGET_EFAULT; 1327 } 1328 ret = get_errno(setsockopt(sockfd, level, optname, 1329 &val, sizeof(val))); 1330 break; 1331 1332 default: 1333 goto unimplemented; 1334 } 1335 break; 1336 case TARGET_SOL_SOCKET: 1337 switch (optname) { 1338 case TARGET_SO_RCVTIMEO: 1339 { 1340 struct timeval tv; 1341 1342 optname = SO_RCVTIMEO; 1343 1344 set_timeout: 1345 if (optlen != sizeof(struct target_timeval)) { 1346 return -TARGET_EINVAL; 1347 } 1348 1349 if (copy_from_user_timeval(&tv, optval_addr)) { 1350 return -TARGET_EFAULT; 1351 } 1352 1353 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, 1354 &tv, sizeof(tv))); 1355 return ret; 1356 } 1357 case TARGET_SO_SNDTIMEO: 1358 optname = SO_SNDTIMEO; 1359 goto set_timeout; 1360 /* Options with 'int' argument. */ 1361 case TARGET_SO_DEBUG: 1362 optname = SO_DEBUG; 1363 break; 1364 case TARGET_SO_REUSEADDR: 1365 optname = SO_REUSEADDR; 1366 break; 1367 case TARGET_SO_TYPE: 1368 optname = SO_TYPE; 1369 break; 1370 case TARGET_SO_ERROR: 1371 optname = SO_ERROR; 1372 break; 1373 case TARGET_SO_DONTROUTE: 1374 optname = SO_DONTROUTE; 1375 break; 1376 case TARGET_SO_BROADCAST: 1377 optname = SO_BROADCAST; 1378 break; 1379 case TARGET_SO_SNDBUF: 1380 optname = SO_SNDBUF; 1381 break; 1382 case TARGET_SO_RCVBUF: 1383 optname = SO_RCVBUF; 1384 break; 1385 case TARGET_SO_KEEPALIVE: 1386 optname = SO_KEEPALIVE; 1387 break; 1388 case TARGET_SO_OOBINLINE: 1389 optname = SO_OOBINLINE; 1390 break; 1391 case TARGET_SO_NO_CHECK: 1392 optname = SO_NO_CHECK; 1393 break; 1394 case TARGET_SO_PRIORITY: 1395 optname = SO_PRIORITY; 1396 break; 1397 #ifdef SO_BSDCOMPAT 1398 case TARGET_SO_BSDCOMPAT: 1399 optname = SO_BSDCOMPAT; 1400 break; 1401 #endif 1402 case TARGET_SO_PASSCRED: 1403 optname = SO_PASSCRED; 1404 break; 1405 case TARGET_SO_TIMESTAMP: 1406 optname = SO_TIMESTAMP; 1407 break; 1408 case TARGET_SO_RCVLOWAT: 1409 optname = SO_RCVLOWAT; 1410 break; 1411 break; 1412 default: 1413 goto unimplemented; 1414 } 1415 if (optlen < sizeof(uint32_t)) 1416 return -TARGET_EINVAL; 1417 1418 if (get_user_u32(val, optval_addr)) 1419 return -TARGET_EFAULT; 1420 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val))); 1421 break; 1422 default: 1423 unimplemented: 1424 gemu_log("Unsupported setsockopt level=%d optname=%d\n", level, optname); 1425 ret = -TARGET_ENOPROTOOPT; 1426 } 1427 return ret; 1428 } 1429 1430 /* do_getsockopt() Must return target values and target errnos. */ 1431 static abi_long do_getsockopt(int sockfd, int level, int optname, 1432 abi_ulong optval_addr, abi_ulong optlen) 1433 { 1434 abi_long ret; 1435 int len, val; 1436 socklen_t lv; 1437 1438 switch(level) { 1439 case TARGET_SOL_SOCKET: 1440 level = SOL_SOCKET; 1441 switch (optname) { 1442 /* These don't just return a single integer */ 1443 case TARGET_SO_LINGER: 1444 case TARGET_SO_RCVTIMEO: 1445 case TARGET_SO_SNDTIMEO: 1446 case TARGET_SO_PEERNAME: 1447 goto unimplemented; 1448 case TARGET_SO_PEERCRED: { 1449 struct ucred cr; 1450 socklen_t crlen; 1451 struct target_ucred *tcr; 1452 1453 if (get_user_u32(len, optlen)) { 1454 return -TARGET_EFAULT; 1455 } 1456 if (len < 0) { 1457 return -TARGET_EINVAL; 1458 } 1459 1460 crlen = sizeof(cr); 1461 ret = get_errno(getsockopt(sockfd, level, SO_PEERCRED, 1462 &cr, &crlen)); 1463 if (ret < 0) { 1464 return ret; 1465 } 1466 if (len > crlen) { 1467 len = crlen; 1468 } 1469 if (!lock_user_struct(VERIFY_WRITE, tcr, optval_addr, 0)) { 1470 return -TARGET_EFAULT; 1471 } 1472 __put_user(cr.pid, &tcr->pid); 1473 __put_user(cr.uid, &tcr->uid); 1474 __put_user(cr.gid, &tcr->gid); 1475 unlock_user_struct(tcr, optval_addr, 1); 1476 if (put_user_u32(len, optlen)) { 1477 return -TARGET_EFAULT; 1478 } 1479 break; 1480 } 1481 /* Options with 'int' argument. */ 1482 case TARGET_SO_DEBUG: 1483 optname = SO_DEBUG; 1484 goto int_case; 1485 case TARGET_SO_REUSEADDR: 1486 optname = SO_REUSEADDR; 1487 goto int_case; 1488 case TARGET_SO_TYPE: 1489 optname = SO_TYPE; 1490 goto int_case; 1491 case TARGET_SO_ERROR: 1492 optname = SO_ERROR; 1493 goto int_case; 1494 case TARGET_SO_DONTROUTE: 1495 optname = SO_DONTROUTE; 1496 goto int_case; 1497 case TARGET_SO_BROADCAST: 1498 optname = SO_BROADCAST; 1499 goto int_case; 1500 case TARGET_SO_SNDBUF: 1501 optname = SO_SNDBUF; 1502 goto int_case; 1503 case TARGET_SO_RCVBUF: 1504 optname = SO_RCVBUF; 1505 goto int_case; 1506 case TARGET_SO_KEEPALIVE: 1507 optname = SO_KEEPALIVE; 1508 goto int_case; 1509 case TARGET_SO_OOBINLINE: 1510 optname = SO_OOBINLINE; 1511 goto int_case; 1512 case TARGET_SO_NO_CHECK: 1513 optname = SO_NO_CHECK; 1514 goto int_case; 1515 case TARGET_SO_PRIORITY: 1516 optname = SO_PRIORITY; 1517 goto int_case; 1518 #ifdef SO_BSDCOMPAT 1519 case TARGET_SO_BSDCOMPAT: 1520 optname = SO_BSDCOMPAT; 1521 goto int_case; 1522 #endif 1523 case TARGET_SO_PASSCRED: 1524 optname = SO_PASSCRED; 1525 goto int_case; 1526 case TARGET_SO_TIMESTAMP: 1527 optname = SO_TIMESTAMP; 1528 goto int_case; 1529 case TARGET_SO_RCVLOWAT: 1530 optname = SO_RCVLOWAT; 1531 goto int_case; 1532 default: 1533 goto int_case; 1534 } 1535 break; 1536 case SOL_TCP: 1537 /* TCP options all take an 'int' value. */ 1538 int_case: 1539 if (get_user_u32(len, optlen)) 1540 return -TARGET_EFAULT; 1541 if (len < 0) 1542 return -TARGET_EINVAL; 1543 lv = sizeof(lv); 1544 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv)); 1545 if (ret < 0) 1546 return ret; 1547 if (len > lv) 1548 len = lv; 1549 if (len == 4) { 1550 if (put_user_u32(val, optval_addr)) 1551 return -TARGET_EFAULT; 1552 } else { 1553 if (put_user_u8(val, optval_addr)) 1554 return -TARGET_EFAULT; 1555 } 1556 if (put_user_u32(len, optlen)) 1557 return -TARGET_EFAULT; 1558 break; 1559 case SOL_IP: 1560 switch(optname) { 1561 case IP_TOS: 1562 case IP_TTL: 1563 case IP_HDRINCL: 1564 case IP_ROUTER_ALERT: 1565 case IP_RECVOPTS: 1566 case IP_RETOPTS: 1567 case IP_PKTINFO: 1568 case IP_MTU_DISCOVER: 1569 case IP_RECVERR: 1570 case IP_RECVTOS: 1571 #ifdef IP_FREEBIND 1572 case IP_FREEBIND: 1573 #endif 1574 case IP_MULTICAST_TTL: 1575 case IP_MULTICAST_LOOP: 1576 if (get_user_u32(len, optlen)) 1577 return -TARGET_EFAULT; 1578 if (len < 0) 1579 return -TARGET_EINVAL; 1580 lv = sizeof(lv); 1581 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv)); 1582 if (ret < 0) 1583 return ret; 1584 if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) { 1585 len = 1; 1586 if (put_user_u32(len, optlen) 1587 || put_user_u8(val, optval_addr)) 1588 return -TARGET_EFAULT; 1589 } else { 1590 if (len > sizeof(int)) 1591 len = sizeof(int); 1592 if (put_user_u32(len, optlen) 1593 || put_user_u32(val, optval_addr)) 1594 return -TARGET_EFAULT; 1595 } 1596 break; 1597 default: 1598 ret = -TARGET_ENOPROTOOPT; 1599 break; 1600 } 1601 break; 1602 default: 1603 unimplemented: 1604 gemu_log("getsockopt level=%d optname=%d not yet supported\n", 1605 level, optname); 1606 ret = -TARGET_EOPNOTSUPP; 1607 break; 1608 } 1609 return ret; 1610 } 1611 1612 static struct iovec *lock_iovec(int type, abi_ulong target_addr, 1613 int count, int copy) 1614 { 1615 struct target_iovec *target_vec; 1616 struct iovec *vec; 1617 abi_ulong total_len, max_len; 1618 int i; 1619 1620 if (count == 0) { 1621 errno = 0; 1622 return NULL; 1623 } 1624 if (count < 0 || count > IOV_MAX) { 1625 errno = EINVAL; 1626 return NULL; 1627 } 1628 1629 vec = calloc(count, sizeof(struct iovec)); 1630 if (vec == NULL) { 1631 errno = ENOMEM; 1632 return NULL; 1633 } 1634 1635 target_vec = lock_user(VERIFY_READ, target_addr, 1636 count * sizeof(struct target_iovec), 1); 1637 if (target_vec == NULL) { 1638 errno = EFAULT; 1639 goto fail2; 1640 } 1641 1642 /* ??? If host page size > target page size, this will result in a 1643 value larger than what we can actually support. */ 1644 max_len = 0x7fffffff & TARGET_PAGE_MASK; 1645 total_len = 0; 1646 1647 for (i = 0; i < count; i++) { 1648 abi_ulong base = tswapal(target_vec[i].iov_base); 1649 abi_long len = tswapal(target_vec[i].iov_len); 1650 1651 if (len < 0) { 1652 errno = EINVAL; 1653 goto fail; 1654 } else if (len == 0) { 1655 /* Zero length pointer is ignored. */ 1656 vec[i].iov_base = 0; 1657 } else { 1658 vec[i].iov_base = lock_user(type, base, len, copy); 1659 if (!vec[i].iov_base) { 1660 errno = EFAULT; 1661 goto fail; 1662 } 1663 if (len > max_len - total_len) { 1664 len = max_len - total_len; 1665 } 1666 } 1667 vec[i].iov_len = len; 1668 total_len += len; 1669 } 1670 1671 unlock_user(target_vec, target_addr, 0); 1672 return vec; 1673 1674 fail: 1675 free(vec); 1676 fail2: 1677 unlock_user(target_vec, target_addr, 0); 1678 return NULL; 1679 } 1680 1681 static void unlock_iovec(struct iovec *vec, abi_ulong target_addr, 1682 int count, int copy) 1683 { 1684 struct target_iovec *target_vec; 1685 int i; 1686 1687 target_vec = lock_user(VERIFY_READ, target_addr, 1688 count * sizeof(struct target_iovec), 1); 1689 if (target_vec) { 1690 for (i = 0; i < count; i++) { 1691 abi_ulong base = tswapal(target_vec[i].iov_base); 1692 abi_long len = tswapal(target_vec[i].iov_base); 1693 if (len < 0) { 1694 break; 1695 } 1696 unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0); 1697 } 1698 unlock_user(target_vec, target_addr, 0); 1699 } 1700 1701 free(vec); 1702 } 1703 1704 static inline void target_to_host_sock_type(int *type) 1705 { 1706 int host_type = 0; 1707 int target_type = *type; 1708 1709 switch (target_type & TARGET_SOCK_TYPE_MASK) { 1710 case TARGET_SOCK_DGRAM: 1711 host_type = SOCK_DGRAM; 1712 break; 1713 case TARGET_SOCK_STREAM: 1714 host_type = SOCK_STREAM; 1715 break; 1716 default: 1717 host_type = target_type & TARGET_SOCK_TYPE_MASK; 1718 break; 1719 } 1720 if (target_type & TARGET_SOCK_CLOEXEC) { 1721 host_type |= SOCK_CLOEXEC; 1722 } 1723 if (target_type & TARGET_SOCK_NONBLOCK) { 1724 host_type |= SOCK_NONBLOCK; 1725 } 1726 *type = host_type; 1727 } 1728 1729 /* do_socket() Must return target values and target errnos. */ 1730 static abi_long do_socket(int domain, int type, int protocol) 1731 { 1732 target_to_host_sock_type(&type); 1733 1734 if (domain == PF_NETLINK) 1735 return -EAFNOSUPPORT; /* do not NETLINK socket connections possible */ 1736 return get_errno(socket(domain, type, protocol)); 1737 } 1738 1739 /* do_bind() Must return target values and target errnos. */ 1740 static abi_long do_bind(int sockfd, abi_ulong target_addr, 1741 socklen_t addrlen) 1742 { 1743 void *addr; 1744 abi_long ret; 1745 1746 if ((int)addrlen < 0) { 1747 return -TARGET_EINVAL; 1748 } 1749 1750 addr = alloca(addrlen+1); 1751 1752 ret = target_to_host_sockaddr(addr, target_addr, addrlen); 1753 if (ret) 1754 return ret; 1755 1756 return get_errno(bind(sockfd, addr, addrlen)); 1757 } 1758 1759 /* do_connect() Must return target values and target errnos. */ 1760 static abi_long do_connect(int sockfd, abi_ulong target_addr, 1761 socklen_t addrlen) 1762 { 1763 void *addr; 1764 abi_long ret; 1765 1766 if ((int)addrlen < 0) { 1767 return -TARGET_EINVAL; 1768 } 1769 1770 addr = alloca(addrlen); 1771 1772 ret = target_to_host_sockaddr(addr, target_addr, addrlen); 1773 if (ret) 1774 return ret; 1775 1776 return get_errno(connect(sockfd, addr, addrlen)); 1777 } 1778 1779 /* do_sendrecvmsg() Must return target values and target errnos. */ 1780 static abi_long do_sendrecvmsg(int fd, abi_ulong target_msg, 1781 int flags, int send) 1782 { 1783 abi_long ret, len; 1784 struct target_msghdr *msgp; 1785 struct msghdr msg; 1786 int count; 1787 struct iovec *vec; 1788 abi_ulong target_vec; 1789 1790 /* FIXME */ 1791 if (!lock_user_struct(send ? VERIFY_READ : VERIFY_WRITE, 1792 msgp, 1793 target_msg, 1794 send ? 1 : 0)) 1795 return -TARGET_EFAULT; 1796 if (msgp->msg_name) { 1797 msg.msg_namelen = tswap32(msgp->msg_namelen); 1798 msg.msg_name = alloca(msg.msg_namelen); 1799 ret = target_to_host_sockaddr(msg.msg_name, tswapal(msgp->msg_name), 1800 msg.msg_namelen); 1801 if (ret) { 1802 goto out2; 1803 } 1804 } else { 1805 msg.msg_name = NULL; 1806 msg.msg_namelen = 0; 1807 } 1808 msg.msg_controllen = 2 * tswapal(msgp->msg_controllen); 1809 msg.msg_control = alloca(msg.msg_controllen); 1810 msg.msg_flags = tswap32(msgp->msg_flags); 1811 1812 count = tswapal(msgp->msg_iovlen); 1813 target_vec = tswapal(msgp->msg_iov); 1814 vec = lock_iovec(send ? VERIFY_READ : VERIFY_WRITE, 1815 target_vec, count, send); 1816 if (vec == NULL) { 1817 ret = -host_to_target_errno(errno); 1818 goto out2; 1819 } 1820 msg.msg_iovlen = count; 1821 msg.msg_iov = vec; 1822 1823 if (send) { 1824 ret = target_to_host_cmsg(&msg, msgp); 1825 if (ret == 0) 1826 ret = get_errno(sendmsg(fd, &msg, flags)); 1827 } else { 1828 ret = get_errno(recvmsg(fd, &msg, flags)); 1829 if (!is_error(ret)) { 1830 len = ret; 1831 ret = host_to_target_cmsg(msgp, &msg); 1832 if (!is_error(ret)) { 1833 msgp->msg_namelen = tswap32(msg.msg_namelen); 1834 if (msg.msg_name != NULL) { 1835 ret = host_to_target_sockaddr(tswapal(msgp->msg_name), 1836 msg.msg_name, msg.msg_namelen); 1837 if (ret) { 1838 goto out; 1839 } 1840 } 1841 1842 ret = len; 1843 } 1844 } 1845 } 1846 1847 out: 1848 unlock_iovec(vec, target_vec, count, !send); 1849 out2: 1850 unlock_user_struct(msgp, target_msg, send ? 0 : 1); 1851 return ret; 1852 } 1853 1854 /* If we don't have a system accept4() then just call accept. 1855 * The callsites to do_accept4() will ensure that they don't 1856 * pass a non-zero flags argument in this config. 1857 */ 1858 #ifndef CONFIG_ACCEPT4 1859 static inline int accept4(int sockfd, struct sockaddr *addr, 1860 socklen_t *addrlen, int flags) 1861 { 1862 assert(flags == 0); 1863 return accept(sockfd, addr, addrlen); 1864 } 1865 #endif 1866 1867 /* do_accept4() Must return target values and target errnos. */ 1868 static abi_long do_accept4(int fd, abi_ulong target_addr, 1869 abi_ulong target_addrlen_addr, int flags) 1870 { 1871 socklen_t addrlen; 1872 void *addr; 1873 abi_long ret; 1874 1875 if (target_addr == 0) { 1876 return get_errno(accept4(fd, NULL, NULL, flags)); 1877 } 1878 1879 /* linux returns EINVAL if addrlen pointer is invalid */ 1880 if (get_user_u32(addrlen, target_addrlen_addr)) 1881 return -TARGET_EINVAL; 1882 1883 if ((int)addrlen < 0) { 1884 return -TARGET_EINVAL; 1885 } 1886 1887 if (!access_ok(VERIFY_WRITE, target_addr, addrlen)) 1888 return -TARGET_EINVAL; 1889 1890 addr = alloca(addrlen); 1891 1892 ret = get_errno(accept4(fd, addr, &addrlen, flags)); 1893 if (!is_error(ret)) { 1894 host_to_target_sockaddr(target_addr, addr, addrlen); 1895 if (put_user_u32(addrlen, target_addrlen_addr)) 1896 ret = -TARGET_EFAULT; 1897 } 1898 return ret; 1899 } 1900 1901 /* do_getpeername() Must return target values and target errnos. */ 1902 static abi_long do_getpeername(int fd, abi_ulong target_addr, 1903 abi_ulong target_addrlen_addr) 1904 { 1905 socklen_t addrlen; 1906 void *addr; 1907 abi_long ret; 1908 1909 if (get_user_u32(addrlen, target_addrlen_addr)) 1910 return -TARGET_EFAULT; 1911 1912 if ((int)addrlen < 0) { 1913 return -TARGET_EINVAL; 1914 } 1915 1916 if (!access_ok(VERIFY_WRITE, target_addr, addrlen)) 1917 return -TARGET_EFAULT; 1918 1919 addr = alloca(addrlen); 1920 1921 ret = get_errno(getpeername(fd, addr, &addrlen)); 1922 if (!is_error(ret)) { 1923 host_to_target_sockaddr(target_addr, addr, addrlen); 1924 if (put_user_u32(addrlen, target_addrlen_addr)) 1925 ret = -TARGET_EFAULT; 1926 } 1927 return ret; 1928 } 1929 1930 /* do_getsockname() Must return target values and target errnos. */ 1931 static abi_long do_getsockname(int fd, abi_ulong target_addr, 1932 abi_ulong target_addrlen_addr) 1933 { 1934 socklen_t addrlen; 1935 void *addr; 1936 abi_long ret; 1937 1938 if (get_user_u32(addrlen, target_addrlen_addr)) 1939 return -TARGET_EFAULT; 1940 1941 if ((int)addrlen < 0) { 1942 return -TARGET_EINVAL; 1943 } 1944 1945 if (!access_ok(VERIFY_WRITE, target_addr, addrlen)) 1946 return -TARGET_EFAULT; 1947 1948 addr = alloca(addrlen); 1949 1950 ret = get_errno(getsockname(fd, addr, &addrlen)); 1951 if (!is_error(ret)) { 1952 host_to_target_sockaddr(target_addr, addr, addrlen); 1953 if (put_user_u32(addrlen, target_addrlen_addr)) 1954 ret = -TARGET_EFAULT; 1955 } 1956 return ret; 1957 } 1958 1959 /* do_socketpair() Must return target values and target errnos. */ 1960 static abi_long do_socketpair(int domain, int type, int protocol, 1961 abi_ulong target_tab_addr) 1962 { 1963 int tab[2]; 1964 abi_long ret; 1965 1966 target_to_host_sock_type(&type); 1967 1968 ret = get_errno(socketpair(domain, type, protocol, tab)); 1969 if (!is_error(ret)) { 1970 if (put_user_s32(tab[0], target_tab_addr) 1971 || put_user_s32(tab[1], target_tab_addr + sizeof(tab[0]))) 1972 ret = -TARGET_EFAULT; 1973 } 1974 return ret; 1975 } 1976 1977 /* do_sendto() Must return target values and target errnos. */ 1978 static abi_long do_sendto(int fd, abi_ulong msg, size_t len, int flags, 1979 abi_ulong target_addr, socklen_t addrlen) 1980 { 1981 void *addr; 1982 void *host_msg; 1983 abi_long ret; 1984 1985 if ((int)addrlen < 0) { 1986 return -TARGET_EINVAL; 1987 } 1988 1989 host_msg = lock_user(VERIFY_READ, msg, len, 1); 1990 if (!host_msg) 1991 return -TARGET_EFAULT; 1992 if (target_addr) { 1993 addr = alloca(addrlen); 1994 ret = target_to_host_sockaddr(addr, target_addr, addrlen); 1995 if (ret) { 1996 unlock_user(host_msg, msg, 0); 1997 return ret; 1998 } 1999 ret = get_errno(sendto(fd, host_msg, len, flags, addr, addrlen)); 2000 } else { 2001 ret = get_errno(send(fd, host_msg, len, flags)); 2002 } 2003 unlock_user(host_msg, msg, 0); 2004 return ret; 2005 } 2006 2007 /* do_recvfrom() Must return target values and target errnos. */ 2008 static abi_long do_recvfrom(int fd, abi_ulong msg, size_t len, int flags, 2009 abi_ulong target_addr, 2010 abi_ulong target_addrlen) 2011 { 2012 socklen_t addrlen; 2013 void *addr; 2014 void *host_msg; 2015 abi_long ret; 2016 2017 host_msg = lock_user(VERIFY_WRITE, msg, len, 0); 2018 if (!host_msg) 2019 return -TARGET_EFAULT; 2020 if (target_addr) { 2021 if (get_user_u32(addrlen, target_addrlen)) { 2022 ret = -TARGET_EFAULT; 2023 goto fail; 2024 } 2025 if ((int)addrlen < 0) { 2026 ret = -TARGET_EINVAL; 2027 goto fail; 2028 } 2029 addr = alloca(addrlen); 2030 ret = get_errno(recvfrom(fd, host_msg, len, flags, addr, &addrlen)); 2031 } else { 2032 addr = NULL; /* To keep compiler quiet. */ 2033 ret = get_errno(qemu_recv(fd, host_msg, len, flags)); 2034 } 2035 if (!is_error(ret)) { 2036 if (target_addr) { 2037 host_to_target_sockaddr(target_addr, addr, addrlen); 2038 if (put_user_u32(addrlen, target_addrlen)) { 2039 ret = -TARGET_EFAULT; 2040 goto fail; 2041 } 2042 } 2043 unlock_user(host_msg, msg, len); 2044 } else { 2045 fail: 2046 unlock_user(host_msg, msg, 0); 2047 } 2048 return ret; 2049 } 2050 2051 #ifdef TARGET_NR_socketcall 2052 /* do_socketcall() Must return target values and target errnos. */ 2053 static abi_long do_socketcall(int num, abi_ulong vptr) 2054 { 2055 abi_long ret; 2056 const int n = sizeof(abi_ulong); 2057 2058 switch(num) { 2059 case SOCKOP_socket: 2060 { 2061 abi_ulong domain, type, protocol; 2062 2063 if (get_user_ual(domain, vptr) 2064 || get_user_ual(type, vptr + n) 2065 || get_user_ual(protocol, vptr + 2 * n)) 2066 return -TARGET_EFAULT; 2067 2068 ret = do_socket(domain, type, protocol); 2069 } 2070 break; 2071 case SOCKOP_bind: 2072 { 2073 abi_ulong sockfd; 2074 abi_ulong target_addr; 2075 socklen_t addrlen; 2076 2077 if (get_user_ual(sockfd, vptr) 2078 || get_user_ual(target_addr, vptr + n) 2079 || get_user_ual(addrlen, vptr + 2 * n)) 2080 return -TARGET_EFAULT; 2081 2082 ret = do_bind(sockfd, target_addr, addrlen); 2083 } 2084 break; 2085 case SOCKOP_connect: 2086 { 2087 abi_ulong sockfd; 2088 abi_ulong target_addr; 2089 socklen_t addrlen; 2090 2091 if (get_user_ual(sockfd, vptr) 2092 || get_user_ual(target_addr, vptr + n) 2093 || get_user_ual(addrlen, vptr + 2 * n)) 2094 return -TARGET_EFAULT; 2095 2096 ret = do_connect(sockfd, target_addr, addrlen); 2097 } 2098 break; 2099 case SOCKOP_listen: 2100 { 2101 abi_ulong sockfd, backlog; 2102 2103 if (get_user_ual(sockfd, vptr) 2104 || get_user_ual(backlog, vptr + n)) 2105 return -TARGET_EFAULT; 2106 2107 ret = get_errno(listen(sockfd, backlog)); 2108 } 2109 break; 2110 case SOCKOP_accept: 2111 { 2112 abi_ulong sockfd; 2113 abi_ulong target_addr, target_addrlen; 2114 2115 if (get_user_ual(sockfd, vptr) 2116 || get_user_ual(target_addr, vptr + n) 2117 || get_user_ual(target_addrlen, vptr + 2 * n)) 2118 return -TARGET_EFAULT; 2119 2120 ret = do_accept4(sockfd, target_addr, target_addrlen, 0); 2121 } 2122 break; 2123 case SOCKOP_getsockname: 2124 { 2125 abi_ulong sockfd; 2126 abi_ulong target_addr, target_addrlen; 2127 2128 if (get_user_ual(sockfd, vptr) 2129 || get_user_ual(target_addr, vptr + n) 2130 || get_user_ual(target_addrlen, vptr + 2 * n)) 2131 return -TARGET_EFAULT; 2132 2133 ret = do_getsockname(sockfd, target_addr, target_addrlen); 2134 } 2135 break; 2136 case SOCKOP_getpeername: 2137 { 2138 abi_ulong sockfd; 2139 abi_ulong target_addr, target_addrlen; 2140 2141 if (get_user_ual(sockfd, vptr) 2142 || get_user_ual(target_addr, vptr + n) 2143 || get_user_ual(target_addrlen, vptr + 2 * n)) 2144 return -TARGET_EFAULT; 2145 2146 ret = do_getpeername(sockfd, target_addr, target_addrlen); 2147 } 2148 break; 2149 case SOCKOP_socketpair: 2150 { 2151 abi_ulong domain, type, protocol; 2152 abi_ulong tab; 2153 2154 if (get_user_ual(domain, vptr) 2155 || get_user_ual(type, vptr + n) 2156 || get_user_ual(protocol, vptr + 2 * n) 2157 || get_user_ual(tab, vptr + 3 * n)) 2158 return -TARGET_EFAULT; 2159 2160 ret = do_socketpair(domain, type, protocol, tab); 2161 } 2162 break; 2163 case SOCKOP_send: 2164 { 2165 abi_ulong sockfd; 2166 abi_ulong msg; 2167 size_t len; 2168 abi_ulong flags; 2169 2170 if (get_user_ual(sockfd, vptr) 2171 || get_user_ual(msg, vptr + n) 2172 || get_user_ual(len, vptr + 2 * n) 2173 || get_user_ual(flags, vptr + 3 * n)) 2174 return -TARGET_EFAULT; 2175 2176 ret = do_sendto(sockfd, msg, len, flags, 0, 0); 2177 } 2178 break; 2179 case SOCKOP_recv: 2180 { 2181 abi_ulong sockfd; 2182 abi_ulong msg; 2183 size_t len; 2184 abi_ulong flags; 2185 2186 if (get_user_ual(sockfd, vptr) 2187 || get_user_ual(msg, vptr + n) 2188 || get_user_ual(len, vptr + 2 * n) 2189 || get_user_ual(flags, vptr + 3 * n)) 2190 return -TARGET_EFAULT; 2191 2192 ret = do_recvfrom(sockfd, msg, len, flags, 0, 0); 2193 } 2194 break; 2195 case SOCKOP_sendto: 2196 { 2197 abi_ulong sockfd; 2198 abi_ulong msg; 2199 size_t len; 2200 abi_ulong flags; 2201 abi_ulong addr; 2202 socklen_t addrlen; 2203 2204 if (get_user_ual(sockfd, vptr) 2205 || get_user_ual(msg, vptr + n) 2206 || get_user_ual(len, vptr + 2 * n) 2207 || get_user_ual(flags, vptr + 3 * n) 2208 || get_user_ual(addr, vptr + 4 * n) 2209 || get_user_ual(addrlen, vptr + 5 * n)) 2210 return -TARGET_EFAULT; 2211 2212 ret = do_sendto(sockfd, msg, len, flags, addr, addrlen); 2213 } 2214 break; 2215 case SOCKOP_recvfrom: 2216 { 2217 abi_ulong sockfd; 2218 abi_ulong msg; 2219 size_t len; 2220 abi_ulong flags; 2221 abi_ulong addr; 2222 socklen_t addrlen; 2223 2224 if (get_user_ual(sockfd, vptr) 2225 || get_user_ual(msg, vptr + n) 2226 || get_user_ual(len, vptr + 2 * n) 2227 || get_user_ual(flags, vptr + 3 * n) 2228 || get_user_ual(addr, vptr + 4 * n) 2229 || get_user_ual(addrlen, vptr + 5 * n)) 2230 return -TARGET_EFAULT; 2231 2232 ret = do_recvfrom(sockfd, msg, len, flags, addr, addrlen); 2233 } 2234 break; 2235 case SOCKOP_shutdown: 2236 { 2237 abi_ulong sockfd, how; 2238 2239 if (get_user_ual(sockfd, vptr) 2240 || get_user_ual(how, vptr + n)) 2241 return -TARGET_EFAULT; 2242 2243 ret = get_errno(shutdown(sockfd, how)); 2244 } 2245 break; 2246 case SOCKOP_sendmsg: 2247 case SOCKOP_recvmsg: 2248 { 2249 abi_ulong fd; 2250 abi_ulong target_msg; 2251 abi_ulong flags; 2252 2253 if (get_user_ual(fd, vptr) 2254 || get_user_ual(target_msg, vptr + n) 2255 || get_user_ual(flags, vptr + 2 * n)) 2256 return -TARGET_EFAULT; 2257 2258 ret = do_sendrecvmsg(fd, target_msg, flags, 2259 (num == SOCKOP_sendmsg)); 2260 } 2261 break; 2262 case SOCKOP_setsockopt: 2263 { 2264 abi_ulong sockfd; 2265 abi_ulong level; 2266 abi_ulong optname; 2267 abi_ulong optval; 2268 socklen_t optlen; 2269 2270 if (get_user_ual(sockfd, vptr) 2271 || get_user_ual(level, vptr + n) 2272 || get_user_ual(optname, vptr + 2 * n) 2273 || get_user_ual(optval, vptr + 3 * n) 2274 || get_user_ual(optlen, vptr + 4 * n)) 2275 return -TARGET_EFAULT; 2276 2277 ret = do_setsockopt(sockfd, level, optname, optval, optlen); 2278 } 2279 break; 2280 case SOCKOP_getsockopt: 2281 { 2282 abi_ulong sockfd; 2283 abi_ulong level; 2284 abi_ulong optname; 2285 abi_ulong optval; 2286 socklen_t optlen; 2287 2288 if (get_user_ual(sockfd, vptr) 2289 || get_user_ual(level, vptr + n) 2290 || get_user_ual(optname, vptr + 2 * n) 2291 || get_user_ual(optval, vptr + 3 * n) 2292 || get_user_ual(optlen, vptr + 4 * n)) 2293 return -TARGET_EFAULT; 2294 2295 ret = do_getsockopt(sockfd, level, optname, optval, optlen); 2296 } 2297 break; 2298 default: 2299 gemu_log("Unsupported socketcall: %d\n", num); 2300 ret = -TARGET_ENOSYS; 2301 break; 2302 } 2303 return ret; 2304 } 2305 #endif 2306 2307 #define N_SHM_REGIONS 32 2308 2309 static struct shm_region { 2310 abi_ulong start; 2311 abi_ulong size; 2312 } shm_regions[N_SHM_REGIONS]; 2313 2314 struct target_ipc_perm 2315 { 2316 abi_long __key; 2317 abi_ulong uid; 2318 abi_ulong gid; 2319 abi_ulong cuid; 2320 abi_ulong cgid; 2321 unsigned short int mode; 2322 unsigned short int __pad1; 2323 unsigned short int __seq; 2324 unsigned short int __pad2; 2325 abi_ulong __unused1; 2326 abi_ulong __unused2; 2327 }; 2328 2329 struct target_semid_ds 2330 { 2331 struct target_ipc_perm sem_perm; 2332 abi_ulong sem_otime; 2333 abi_ulong __unused1; 2334 abi_ulong sem_ctime; 2335 abi_ulong __unused2; 2336 abi_ulong sem_nsems; 2337 abi_ulong __unused3; 2338 abi_ulong __unused4; 2339 }; 2340 2341 static inline abi_long target_to_host_ipc_perm(struct ipc_perm *host_ip, 2342 abi_ulong target_addr) 2343 { 2344 struct target_ipc_perm *target_ip; 2345 struct target_semid_ds *target_sd; 2346 2347 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1)) 2348 return -TARGET_EFAULT; 2349 target_ip = &(target_sd->sem_perm); 2350 host_ip->__key = tswapal(target_ip->__key); 2351 host_ip->uid = tswapal(target_ip->uid); 2352 host_ip->gid = tswapal(target_ip->gid); 2353 host_ip->cuid = tswapal(target_ip->cuid); 2354 host_ip->cgid = tswapal(target_ip->cgid); 2355 host_ip->mode = tswap16(target_ip->mode); 2356 unlock_user_struct(target_sd, target_addr, 0); 2357 return 0; 2358 } 2359 2360 static inline abi_long host_to_target_ipc_perm(abi_ulong target_addr, 2361 struct ipc_perm *host_ip) 2362 { 2363 struct target_ipc_perm *target_ip; 2364 struct target_semid_ds *target_sd; 2365 2366 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0)) 2367 return -TARGET_EFAULT; 2368 target_ip = &(target_sd->sem_perm); 2369 target_ip->__key = tswapal(host_ip->__key); 2370 target_ip->uid = tswapal(host_ip->uid); 2371 target_ip->gid = tswapal(host_ip->gid); 2372 target_ip->cuid = tswapal(host_ip->cuid); 2373 target_ip->cgid = tswapal(host_ip->cgid); 2374 target_ip->mode = tswap16(host_ip->mode); 2375 unlock_user_struct(target_sd, target_addr, 1); 2376 return 0; 2377 } 2378 2379 static inline abi_long target_to_host_semid_ds(struct semid_ds *host_sd, 2380 abi_ulong target_addr) 2381 { 2382 struct target_semid_ds *target_sd; 2383 2384 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1)) 2385 return -TARGET_EFAULT; 2386 if (target_to_host_ipc_perm(&(host_sd->sem_perm),target_addr)) 2387 return -TARGET_EFAULT; 2388 host_sd->sem_nsems = tswapal(target_sd->sem_nsems); 2389 host_sd->sem_otime = tswapal(target_sd->sem_otime); 2390 host_sd->sem_ctime = tswapal(target_sd->sem_ctime); 2391 unlock_user_struct(target_sd, target_addr, 0); 2392 return 0; 2393 } 2394 2395 static inline abi_long host_to_target_semid_ds(abi_ulong target_addr, 2396 struct semid_ds *host_sd) 2397 { 2398 struct target_semid_ds *target_sd; 2399 2400 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0)) 2401 return -TARGET_EFAULT; 2402 if (host_to_target_ipc_perm(target_addr,&(host_sd->sem_perm))) 2403 return -TARGET_EFAULT; 2404 target_sd->sem_nsems = tswapal(host_sd->sem_nsems); 2405 target_sd->sem_otime = tswapal(host_sd->sem_otime); 2406 target_sd->sem_ctime = tswapal(host_sd->sem_ctime); 2407 unlock_user_struct(target_sd, target_addr, 1); 2408 return 0; 2409 } 2410 2411 struct target_seminfo { 2412 int semmap; 2413 int semmni; 2414 int semmns; 2415 int semmnu; 2416 int semmsl; 2417 int semopm; 2418 int semume; 2419 int semusz; 2420 int semvmx; 2421 int semaem; 2422 }; 2423 2424 static inline abi_long host_to_target_seminfo(abi_ulong target_addr, 2425 struct seminfo *host_seminfo) 2426 { 2427 struct target_seminfo *target_seminfo; 2428 if (!lock_user_struct(VERIFY_WRITE, target_seminfo, target_addr, 0)) 2429 return -TARGET_EFAULT; 2430 __put_user(host_seminfo->semmap, &target_seminfo->semmap); 2431 __put_user(host_seminfo->semmni, &target_seminfo->semmni); 2432 __put_user(host_seminfo->semmns, &target_seminfo->semmns); 2433 __put_user(host_seminfo->semmnu, &target_seminfo->semmnu); 2434 __put_user(host_seminfo->semmsl, &target_seminfo->semmsl); 2435 __put_user(host_seminfo->semopm, &target_seminfo->semopm); 2436 __put_user(host_seminfo->semume, &target_seminfo->semume); 2437 __put_user(host_seminfo->semusz, &target_seminfo->semusz); 2438 __put_user(host_seminfo->semvmx, &target_seminfo->semvmx); 2439 __put_user(host_seminfo->semaem, &target_seminfo->semaem); 2440 unlock_user_struct(target_seminfo, target_addr, 1); 2441 return 0; 2442 } 2443 2444 union semun { 2445 int val; 2446 struct semid_ds *buf; 2447 unsigned short *array; 2448 struct seminfo *__buf; 2449 }; 2450 2451 union target_semun { 2452 int val; 2453 abi_ulong buf; 2454 abi_ulong array; 2455 abi_ulong __buf; 2456 }; 2457 2458 static inline abi_long target_to_host_semarray(int semid, unsigned short **host_array, 2459 abi_ulong target_addr) 2460 { 2461 int nsems; 2462 unsigned short *array; 2463 union semun semun; 2464 struct semid_ds semid_ds; 2465 int i, ret; 2466 2467 semun.buf = &semid_ds; 2468 2469 ret = semctl(semid, 0, IPC_STAT, semun); 2470 if (ret == -1) 2471 return get_errno(ret); 2472 2473 nsems = semid_ds.sem_nsems; 2474 2475 *host_array = malloc(nsems*sizeof(unsigned short)); 2476 array = lock_user(VERIFY_READ, target_addr, 2477 nsems*sizeof(unsigned short), 1); 2478 if (!array) 2479 return -TARGET_EFAULT; 2480 2481 for(i=0; i<nsems; i++) { 2482 __get_user((*host_array)[i], &array[i]); 2483 } 2484 unlock_user(array, target_addr, 0); 2485 2486 return 0; 2487 } 2488 2489 static inline abi_long host_to_target_semarray(int semid, abi_ulong target_addr, 2490 unsigned short **host_array) 2491 { 2492 int nsems; 2493 unsigned short *array; 2494 union semun semun; 2495 struct semid_ds semid_ds; 2496 int i, ret; 2497 2498 semun.buf = &semid_ds; 2499 2500 ret = semctl(semid, 0, IPC_STAT, semun); 2501 if (ret == -1) 2502 return get_errno(ret); 2503 2504 nsems = semid_ds.sem_nsems; 2505 2506 array = lock_user(VERIFY_WRITE, target_addr, 2507 nsems*sizeof(unsigned short), 0); 2508 if (!array) 2509 return -TARGET_EFAULT; 2510 2511 for(i=0; i<nsems; i++) { 2512 __put_user((*host_array)[i], &array[i]); 2513 } 2514 free(*host_array); 2515 unlock_user(array, target_addr, 1); 2516 2517 return 0; 2518 } 2519 2520 static inline abi_long do_semctl(int semid, int semnum, int cmd, 2521 union target_semun target_su) 2522 { 2523 union semun arg; 2524 struct semid_ds dsarg; 2525 unsigned short *array = NULL; 2526 struct seminfo seminfo; 2527 abi_long ret = -TARGET_EINVAL; 2528 abi_long err; 2529 cmd &= 0xff; 2530 2531 switch( cmd ) { 2532 case GETVAL: 2533 case SETVAL: 2534 arg.val = tswap32(target_su.val); 2535 ret = get_errno(semctl(semid, semnum, cmd, arg)); 2536 target_su.val = tswap32(arg.val); 2537 break; 2538 case GETALL: 2539 case SETALL: 2540 err = target_to_host_semarray(semid, &array, target_su.array); 2541 if (err) 2542 return err; 2543 arg.array = array; 2544 ret = get_errno(semctl(semid, semnum, cmd, arg)); 2545 err = host_to_target_semarray(semid, target_su.array, &array); 2546 if (err) 2547 return err; 2548 break; 2549 case IPC_STAT: 2550 case IPC_SET: 2551 case SEM_STAT: 2552 err = target_to_host_semid_ds(&dsarg, target_su.buf); 2553 if (err) 2554 return err; 2555 arg.buf = &dsarg; 2556 ret = get_errno(semctl(semid, semnum, cmd, arg)); 2557 err = host_to_target_semid_ds(target_su.buf, &dsarg); 2558 if (err) 2559 return err; 2560 break; 2561 case IPC_INFO: 2562 case SEM_INFO: 2563 arg.__buf = &seminfo; 2564 ret = get_errno(semctl(semid, semnum, cmd, arg)); 2565 err = host_to_target_seminfo(target_su.__buf, &seminfo); 2566 if (err) 2567 return err; 2568 break; 2569 case IPC_RMID: 2570 case GETPID: 2571 case GETNCNT: 2572 case GETZCNT: 2573 ret = get_errno(semctl(semid, semnum, cmd, NULL)); 2574 break; 2575 } 2576 2577 return ret; 2578 } 2579 2580 struct target_sembuf { 2581 unsigned short sem_num; 2582 short sem_op; 2583 short sem_flg; 2584 }; 2585 2586 static inline abi_long target_to_host_sembuf(struct sembuf *host_sembuf, 2587 abi_ulong target_addr, 2588 unsigned nsops) 2589 { 2590 struct target_sembuf *target_sembuf; 2591 int i; 2592 2593 target_sembuf = lock_user(VERIFY_READ, target_addr, 2594 nsops*sizeof(struct target_sembuf), 1); 2595 if (!target_sembuf) 2596 return -TARGET_EFAULT; 2597 2598 for(i=0; i<nsops; i++) { 2599 __get_user(host_sembuf[i].sem_num, &target_sembuf[i].sem_num); 2600 __get_user(host_sembuf[i].sem_op, &target_sembuf[i].sem_op); 2601 __get_user(host_sembuf[i].sem_flg, &target_sembuf[i].sem_flg); 2602 } 2603 2604 unlock_user(target_sembuf, target_addr, 0); 2605 2606 return 0; 2607 } 2608 2609 static inline abi_long do_semop(int semid, abi_long ptr, unsigned nsops) 2610 { 2611 struct sembuf sops[nsops]; 2612 2613 if (target_to_host_sembuf(sops, ptr, nsops)) 2614 return -TARGET_EFAULT; 2615 2616 return get_errno(semop(semid, sops, nsops)); 2617 } 2618 2619 struct target_msqid_ds 2620 { 2621 struct target_ipc_perm msg_perm; 2622 abi_ulong msg_stime; 2623 #if TARGET_ABI_BITS == 32 2624 abi_ulong __unused1; 2625 #endif 2626 abi_ulong msg_rtime; 2627 #if TARGET_ABI_BITS == 32 2628 abi_ulong __unused2; 2629 #endif 2630 abi_ulong msg_ctime; 2631 #if TARGET_ABI_BITS == 32 2632 abi_ulong __unused3; 2633 #endif 2634 abi_ulong __msg_cbytes; 2635 abi_ulong msg_qnum; 2636 abi_ulong msg_qbytes; 2637 abi_ulong msg_lspid; 2638 abi_ulong msg_lrpid; 2639 abi_ulong __unused4; 2640 abi_ulong __unused5; 2641 }; 2642 2643 static inline abi_long target_to_host_msqid_ds(struct msqid_ds *host_md, 2644 abi_ulong target_addr) 2645 { 2646 struct target_msqid_ds *target_md; 2647 2648 if (!lock_user_struct(VERIFY_READ, target_md, target_addr, 1)) 2649 return -TARGET_EFAULT; 2650 if (target_to_host_ipc_perm(&(host_md->msg_perm),target_addr)) 2651 return -TARGET_EFAULT; 2652 host_md->msg_stime = tswapal(target_md->msg_stime); 2653 host_md->msg_rtime = tswapal(target_md->msg_rtime); 2654 host_md->msg_ctime = tswapal(target_md->msg_ctime); 2655 host_md->__msg_cbytes = tswapal(target_md->__msg_cbytes); 2656 host_md->msg_qnum = tswapal(target_md->msg_qnum); 2657 host_md->msg_qbytes = tswapal(target_md->msg_qbytes); 2658 host_md->msg_lspid = tswapal(target_md->msg_lspid); 2659 host_md->msg_lrpid = tswapal(target_md->msg_lrpid); 2660 unlock_user_struct(target_md, target_addr, 0); 2661 return 0; 2662 } 2663 2664 static inline abi_long host_to_target_msqid_ds(abi_ulong target_addr, 2665 struct msqid_ds *host_md) 2666 { 2667 struct target_msqid_ds *target_md; 2668 2669 if (!lock_user_struct(VERIFY_WRITE, target_md, target_addr, 0)) 2670 return -TARGET_EFAULT; 2671 if (host_to_target_ipc_perm(target_addr,&(host_md->msg_perm))) 2672 return -TARGET_EFAULT; 2673 target_md->msg_stime = tswapal(host_md->msg_stime); 2674 target_md->msg_rtime = tswapal(host_md->msg_rtime); 2675 target_md->msg_ctime = tswapal(host_md->msg_ctime); 2676 target_md->__msg_cbytes = tswapal(host_md->__msg_cbytes); 2677 target_md->msg_qnum = tswapal(host_md->msg_qnum); 2678 target_md->msg_qbytes = tswapal(host_md->msg_qbytes); 2679 target_md->msg_lspid = tswapal(host_md->msg_lspid); 2680 target_md->msg_lrpid = tswapal(host_md->msg_lrpid); 2681 unlock_user_struct(target_md, target_addr, 1); 2682 return 0; 2683 } 2684 2685 struct target_msginfo { 2686 int msgpool; 2687 int msgmap; 2688 int msgmax; 2689 int msgmnb; 2690 int msgmni; 2691 int msgssz; 2692 int msgtql; 2693 unsigned short int msgseg; 2694 }; 2695 2696 static inline abi_long host_to_target_msginfo(abi_ulong target_addr, 2697 struct msginfo *host_msginfo) 2698 { 2699 struct target_msginfo *target_msginfo; 2700 if (!lock_user_struct(VERIFY_WRITE, target_msginfo, target_addr, 0)) 2701 return -TARGET_EFAULT; 2702 __put_user(host_msginfo->msgpool, &target_msginfo->msgpool); 2703 __put_user(host_msginfo->msgmap, &target_msginfo->msgmap); 2704 __put_user(host_msginfo->msgmax, &target_msginfo->msgmax); 2705 __put_user(host_msginfo->msgmnb, &target_msginfo->msgmnb); 2706 __put_user(host_msginfo->msgmni, &target_msginfo->msgmni); 2707 __put_user(host_msginfo->msgssz, &target_msginfo->msgssz); 2708 __put_user(host_msginfo->msgtql, &target_msginfo->msgtql); 2709 __put_user(host_msginfo->msgseg, &target_msginfo->msgseg); 2710 unlock_user_struct(target_msginfo, target_addr, 1); 2711 return 0; 2712 } 2713 2714 static inline abi_long do_msgctl(int msgid, int cmd, abi_long ptr) 2715 { 2716 struct msqid_ds dsarg; 2717 struct msginfo msginfo; 2718 abi_long ret = -TARGET_EINVAL; 2719 2720 cmd &= 0xff; 2721 2722 switch (cmd) { 2723 case IPC_STAT: 2724 case IPC_SET: 2725 case MSG_STAT: 2726 if (target_to_host_msqid_ds(&dsarg,ptr)) 2727 return -TARGET_EFAULT; 2728 ret = get_errno(msgctl(msgid, cmd, &dsarg)); 2729 if (host_to_target_msqid_ds(ptr,&dsarg)) 2730 return -TARGET_EFAULT; 2731 break; 2732 case IPC_RMID: 2733 ret = get_errno(msgctl(msgid, cmd, NULL)); 2734 break; 2735 case IPC_INFO: 2736 case MSG_INFO: 2737 ret = get_errno(msgctl(msgid, cmd, (struct msqid_ds *)&msginfo)); 2738 if (host_to_target_msginfo(ptr, &msginfo)) 2739 return -TARGET_EFAULT; 2740 break; 2741 } 2742 2743 return ret; 2744 } 2745 2746 struct target_msgbuf { 2747 abi_long mtype; 2748 char mtext[1]; 2749 }; 2750 2751 static inline abi_long do_msgsnd(int msqid, abi_long msgp, 2752 unsigned int msgsz, int msgflg) 2753 { 2754 struct target_msgbuf *target_mb; 2755 struct msgbuf *host_mb; 2756 abi_long ret = 0; 2757 2758 if (!lock_user_struct(VERIFY_READ, target_mb, msgp, 0)) 2759 return -TARGET_EFAULT; 2760 host_mb = malloc(msgsz+sizeof(long)); 2761 host_mb->mtype = (abi_long) tswapal(target_mb->mtype); 2762 memcpy(host_mb->mtext, target_mb->mtext, msgsz); 2763 ret = get_errno(msgsnd(msqid, host_mb, msgsz, msgflg)); 2764 free(host_mb); 2765 unlock_user_struct(target_mb, msgp, 0); 2766 2767 return ret; 2768 } 2769 2770 static inline abi_long do_msgrcv(int msqid, abi_long msgp, 2771 unsigned int msgsz, abi_long msgtyp, 2772 int msgflg) 2773 { 2774 struct target_msgbuf *target_mb; 2775 char *target_mtext; 2776 struct msgbuf *host_mb; 2777 abi_long ret = 0; 2778 2779 if (!lock_user_struct(VERIFY_WRITE, target_mb, msgp, 0)) 2780 return -TARGET_EFAULT; 2781 2782 host_mb = g_malloc(msgsz+sizeof(long)); 2783 ret = get_errno(msgrcv(msqid, host_mb, msgsz, msgtyp, msgflg)); 2784 2785 if (ret > 0) { 2786 abi_ulong target_mtext_addr = msgp + sizeof(abi_ulong); 2787 target_mtext = lock_user(VERIFY_WRITE, target_mtext_addr, ret, 0); 2788 if (!target_mtext) { 2789 ret = -TARGET_EFAULT; 2790 goto end; 2791 } 2792 memcpy(target_mb->mtext, host_mb->mtext, ret); 2793 unlock_user(target_mtext, target_mtext_addr, ret); 2794 } 2795 2796 target_mb->mtype = tswapal(host_mb->mtype); 2797 2798 end: 2799 if (target_mb) 2800 unlock_user_struct(target_mb, msgp, 1); 2801 g_free(host_mb); 2802 return ret; 2803 } 2804 2805 struct target_shmid_ds 2806 { 2807 struct target_ipc_perm shm_perm; 2808 abi_ulong shm_segsz; 2809 abi_ulong shm_atime; 2810 #if TARGET_ABI_BITS == 32 2811 abi_ulong __unused1; 2812 #endif 2813 abi_ulong shm_dtime; 2814 #if TARGET_ABI_BITS == 32 2815 abi_ulong __unused2; 2816 #endif 2817 abi_ulong shm_ctime; 2818 #if TARGET_ABI_BITS == 32 2819 abi_ulong __unused3; 2820 #endif 2821 int shm_cpid; 2822 int shm_lpid; 2823 abi_ulong shm_nattch; 2824 unsigned long int __unused4; 2825 unsigned long int __unused5; 2826 }; 2827 2828 static inline abi_long target_to_host_shmid_ds(struct shmid_ds *host_sd, 2829 abi_ulong target_addr) 2830 { 2831 struct target_shmid_ds *target_sd; 2832 2833 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1)) 2834 return -TARGET_EFAULT; 2835 if (target_to_host_ipc_perm(&(host_sd->shm_perm), target_addr)) 2836 return -TARGET_EFAULT; 2837 __get_user(host_sd->shm_segsz, &target_sd->shm_segsz); 2838 __get_user(host_sd->shm_atime, &target_sd->shm_atime); 2839 __get_user(host_sd->shm_dtime, &target_sd->shm_dtime); 2840 __get_user(host_sd->shm_ctime, &target_sd->shm_ctime); 2841 __get_user(host_sd->shm_cpid, &target_sd->shm_cpid); 2842 __get_user(host_sd->shm_lpid, &target_sd->shm_lpid); 2843 __get_user(host_sd->shm_nattch, &target_sd->shm_nattch); 2844 unlock_user_struct(target_sd, target_addr, 0); 2845 return 0; 2846 } 2847 2848 static inline abi_long host_to_target_shmid_ds(abi_ulong target_addr, 2849 struct shmid_ds *host_sd) 2850 { 2851 struct target_shmid_ds *target_sd; 2852 2853 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0)) 2854 return -TARGET_EFAULT; 2855 if (host_to_target_ipc_perm(target_addr, &(host_sd->shm_perm))) 2856 return -TARGET_EFAULT; 2857 __put_user(host_sd->shm_segsz, &target_sd->shm_segsz); 2858 __put_user(host_sd->shm_atime, &target_sd->shm_atime); 2859 __put_user(host_sd->shm_dtime, &target_sd->shm_dtime); 2860 __put_user(host_sd->shm_ctime, &target_sd->shm_ctime); 2861 __put_user(host_sd->shm_cpid, &target_sd->shm_cpid); 2862 __put_user(host_sd->shm_lpid, &target_sd->shm_lpid); 2863 __put_user(host_sd->shm_nattch, &target_sd->shm_nattch); 2864 unlock_user_struct(target_sd, target_addr, 1); 2865 return 0; 2866 } 2867 2868 struct target_shminfo { 2869 abi_ulong shmmax; 2870 abi_ulong shmmin; 2871 abi_ulong shmmni; 2872 abi_ulong shmseg; 2873 abi_ulong shmall; 2874 }; 2875 2876 static inline abi_long host_to_target_shminfo(abi_ulong target_addr, 2877 struct shminfo *host_shminfo) 2878 { 2879 struct target_shminfo *target_shminfo; 2880 if (!lock_user_struct(VERIFY_WRITE, target_shminfo, target_addr, 0)) 2881 return -TARGET_EFAULT; 2882 __put_user(host_shminfo->shmmax, &target_shminfo->shmmax); 2883 __put_user(host_shminfo->shmmin, &target_shminfo->shmmin); 2884 __put_user(host_shminfo->shmmni, &target_shminfo->shmmni); 2885 __put_user(host_shminfo->shmseg, &target_shminfo->shmseg); 2886 __put_user(host_shminfo->shmall, &target_shminfo->shmall); 2887 unlock_user_struct(target_shminfo, target_addr, 1); 2888 return 0; 2889 } 2890 2891 struct target_shm_info { 2892 int used_ids; 2893 abi_ulong shm_tot; 2894 abi_ulong shm_rss; 2895 abi_ulong shm_swp; 2896 abi_ulong swap_attempts; 2897 abi_ulong swap_successes; 2898 }; 2899 2900 static inline abi_long host_to_target_shm_info(abi_ulong target_addr, 2901 struct shm_info *host_shm_info) 2902 { 2903 struct target_shm_info *target_shm_info; 2904 if (!lock_user_struct(VERIFY_WRITE, target_shm_info, target_addr, 0)) 2905 return -TARGET_EFAULT; 2906 __put_user(host_shm_info->used_ids, &target_shm_info->used_ids); 2907 __put_user(host_shm_info->shm_tot, &target_shm_info->shm_tot); 2908 __put_user(host_shm_info->shm_rss, &target_shm_info->shm_rss); 2909 __put_user(host_shm_info->shm_swp, &target_shm_info->shm_swp); 2910 __put_user(host_shm_info->swap_attempts, &target_shm_info->swap_attempts); 2911 __put_user(host_shm_info->swap_successes, &target_shm_info->swap_successes); 2912 unlock_user_struct(target_shm_info, target_addr, 1); 2913 return 0; 2914 } 2915 2916 static inline abi_long do_shmctl(int shmid, int cmd, abi_long buf) 2917 { 2918 struct shmid_ds dsarg; 2919 struct shminfo shminfo; 2920 struct shm_info shm_info; 2921 abi_long ret = -TARGET_EINVAL; 2922 2923 cmd &= 0xff; 2924 2925 switch(cmd) { 2926 case IPC_STAT: 2927 case IPC_SET: 2928 case SHM_STAT: 2929 if (target_to_host_shmid_ds(&dsarg, buf)) 2930 return -TARGET_EFAULT; 2931 ret = get_errno(shmctl(shmid, cmd, &dsarg)); 2932 if (host_to_target_shmid_ds(buf, &dsarg)) 2933 return -TARGET_EFAULT; 2934 break; 2935 case IPC_INFO: 2936 ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shminfo)); 2937 if (host_to_target_shminfo(buf, &shminfo)) 2938 return -TARGET_EFAULT; 2939 break; 2940 case SHM_INFO: 2941 ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shm_info)); 2942 if (host_to_target_shm_info(buf, &shm_info)) 2943 return -TARGET_EFAULT; 2944 break; 2945 case IPC_RMID: 2946 case SHM_LOCK: 2947 case SHM_UNLOCK: 2948 ret = get_errno(shmctl(shmid, cmd, NULL)); 2949 break; 2950 } 2951 2952 return ret; 2953 } 2954 2955 static inline abi_ulong do_shmat(int shmid, abi_ulong shmaddr, int shmflg) 2956 { 2957 abi_long raddr; 2958 void *host_raddr; 2959 struct shmid_ds shm_info; 2960 int i,ret; 2961 2962 /* find out the length of the shared memory segment */ 2963 ret = get_errno(shmctl(shmid, IPC_STAT, &shm_info)); 2964 if (is_error(ret)) { 2965 /* can't get length, bail out */ 2966 return ret; 2967 } 2968 2969 mmap_lock(); 2970 2971 if (shmaddr) 2972 host_raddr = shmat(shmid, (void *)g2h(shmaddr), shmflg); 2973 else { 2974 abi_ulong mmap_start; 2975 2976 mmap_start = mmap_find_vma(0, shm_info.shm_segsz); 2977 2978 if (mmap_start == -1) { 2979 errno = ENOMEM; 2980 host_raddr = (void *)-1; 2981 } else 2982 host_raddr = shmat(shmid, g2h(mmap_start), shmflg | SHM_REMAP); 2983 } 2984 2985 if (host_raddr == (void *)-1) { 2986 mmap_unlock(); 2987 return get_errno((long)host_raddr); 2988 } 2989 raddr=h2g((unsigned long)host_raddr); 2990 2991 page_set_flags(raddr, raddr + shm_info.shm_segsz, 2992 PAGE_VALID | PAGE_READ | 2993 ((shmflg & SHM_RDONLY)? 0 : PAGE_WRITE)); 2994 2995 for (i = 0; i < N_SHM_REGIONS; i++) { 2996 if (shm_regions[i].start == 0) { 2997 shm_regions[i].start = raddr; 2998 shm_regions[i].size = shm_info.shm_segsz; 2999 break; 3000 } 3001 } 3002 3003 mmap_unlock(); 3004 return raddr; 3005 3006 } 3007 3008 static inline abi_long do_shmdt(abi_ulong shmaddr) 3009 { 3010 int i; 3011 3012 for (i = 0; i < N_SHM_REGIONS; ++i) { 3013 if (shm_regions[i].start == shmaddr) { 3014 shm_regions[i].start = 0; 3015 page_set_flags(shmaddr, shmaddr + shm_regions[i].size, 0); 3016 break; 3017 } 3018 } 3019 3020 return get_errno(shmdt(g2h(shmaddr))); 3021 } 3022 3023 #ifdef TARGET_NR_ipc 3024 /* ??? This only works with linear mappings. */ 3025 /* do_ipc() must return target values and target errnos. */ 3026 static abi_long do_ipc(unsigned int call, int first, 3027 int second, int third, 3028 abi_long ptr, abi_long fifth) 3029 { 3030 int version; 3031 abi_long ret = 0; 3032 3033 version = call >> 16; 3034 call &= 0xffff; 3035 3036 switch (call) { 3037 case IPCOP_semop: 3038 ret = do_semop(first, ptr, second); 3039 break; 3040 3041 case IPCOP_semget: 3042 ret = get_errno(semget(first, second, third)); 3043 break; 3044 3045 case IPCOP_semctl: 3046 ret = do_semctl(first, second, third, (union target_semun)(abi_ulong) ptr); 3047 break; 3048 3049 case IPCOP_msgget: 3050 ret = get_errno(msgget(first, second)); 3051 break; 3052 3053 case IPCOP_msgsnd: 3054 ret = do_msgsnd(first, ptr, second, third); 3055 break; 3056 3057 case IPCOP_msgctl: 3058 ret = do_msgctl(first, second, ptr); 3059 break; 3060 3061 case IPCOP_msgrcv: 3062 switch (version) { 3063 case 0: 3064 { 3065 struct target_ipc_kludge { 3066 abi_long msgp; 3067 abi_long msgtyp; 3068 } *tmp; 3069 3070 if (!lock_user_struct(VERIFY_READ, tmp, ptr, 1)) { 3071 ret = -TARGET_EFAULT; 3072 break; 3073 } 3074 3075 ret = do_msgrcv(first, tswapal(tmp->msgp), second, tswapal(tmp->msgtyp), third); 3076 3077 unlock_user_struct(tmp, ptr, 0); 3078 break; 3079 } 3080 default: 3081 ret = do_msgrcv(first, ptr, second, fifth, third); 3082 } 3083 break; 3084 3085 case IPCOP_shmat: 3086 switch (version) { 3087 default: 3088 { 3089 abi_ulong raddr; 3090 raddr = do_shmat(first, ptr, second); 3091 if (is_error(raddr)) 3092 return get_errno(raddr); 3093 if (put_user_ual(raddr, third)) 3094 return -TARGET_EFAULT; 3095 break; 3096 } 3097 case 1: 3098 ret = -TARGET_EINVAL; 3099 break; 3100 } 3101 break; 3102 case IPCOP_shmdt: 3103 ret = do_shmdt(ptr); 3104 break; 3105 3106 case IPCOP_shmget: 3107 /* IPC_* flag values are the same on all linux platforms */ 3108 ret = get_errno(shmget(first, second, third)); 3109 break; 3110 3111 /* IPC_* and SHM_* command values are the same on all linux platforms */ 3112 case IPCOP_shmctl: 3113 ret = do_shmctl(first, second, third); 3114 break; 3115 default: 3116 gemu_log("Unsupported ipc call: %d (version %d)\n", call, version); 3117 ret = -TARGET_ENOSYS; 3118 break; 3119 } 3120 return ret; 3121 } 3122 #endif 3123 3124 /* kernel structure types definitions */ 3125 3126 #define STRUCT(name, ...) STRUCT_ ## name, 3127 #define STRUCT_SPECIAL(name) STRUCT_ ## name, 3128 enum { 3129 #include "syscall_types.h" 3130 }; 3131 #undef STRUCT 3132 #undef STRUCT_SPECIAL 3133 3134 #define STRUCT(name, ...) static const argtype struct_ ## name ## _def[] = { __VA_ARGS__, TYPE_NULL }; 3135 #define STRUCT_SPECIAL(name) 3136 #include "syscall_types.h" 3137 #undef STRUCT 3138 #undef STRUCT_SPECIAL 3139 3140 typedef struct IOCTLEntry IOCTLEntry; 3141 3142 typedef abi_long do_ioctl_fn(const IOCTLEntry *ie, uint8_t *buf_temp, 3143 int fd, abi_long cmd, abi_long arg); 3144 3145 struct IOCTLEntry { 3146 unsigned int target_cmd; 3147 unsigned int host_cmd; 3148 const char *name; 3149 int access; 3150 do_ioctl_fn *do_ioctl; 3151 const argtype arg_type[5]; 3152 }; 3153 3154 #define IOC_R 0x0001 3155 #define IOC_W 0x0002 3156 #define IOC_RW (IOC_R | IOC_W) 3157 3158 #define MAX_STRUCT_SIZE 4096 3159 3160 #ifdef CONFIG_FIEMAP 3161 /* So fiemap access checks don't overflow on 32 bit systems. 3162 * This is very slightly smaller than the limit imposed by 3163 * the underlying kernel. 3164 */ 3165 #define FIEMAP_MAX_EXTENTS ((UINT_MAX - sizeof(struct fiemap)) \ 3166 / sizeof(struct fiemap_extent)) 3167 3168 static abi_long do_ioctl_fs_ioc_fiemap(const IOCTLEntry *ie, uint8_t *buf_temp, 3169 int fd, abi_long cmd, abi_long arg) 3170 { 3171 /* The parameter for this ioctl is a struct fiemap followed 3172 * by an array of struct fiemap_extent whose size is set 3173 * in fiemap->fm_extent_count. The array is filled in by the 3174 * ioctl. 3175 */ 3176 int target_size_in, target_size_out; 3177 struct fiemap *fm; 3178 const argtype *arg_type = ie->arg_type; 3179 const argtype extent_arg_type[] = { MK_STRUCT(STRUCT_fiemap_extent) }; 3180 void *argptr, *p; 3181 abi_long ret; 3182 int i, extent_size = thunk_type_size(extent_arg_type, 0); 3183 uint32_t outbufsz; 3184 int free_fm = 0; 3185 3186 assert(arg_type[0] == TYPE_PTR); 3187 assert(ie->access == IOC_RW); 3188 arg_type++; 3189 target_size_in = thunk_type_size(arg_type, 0); 3190 argptr = lock_user(VERIFY_READ, arg, target_size_in, 1); 3191 if (!argptr) { 3192 return -TARGET_EFAULT; 3193 } 3194 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST); 3195 unlock_user(argptr, arg, 0); 3196 fm = (struct fiemap *)buf_temp; 3197 if (fm->fm_extent_count > FIEMAP_MAX_EXTENTS) { 3198 return -TARGET_EINVAL; 3199 } 3200 3201 outbufsz = sizeof (*fm) + 3202 (sizeof(struct fiemap_extent) * fm->fm_extent_count); 3203 3204 if (outbufsz > MAX_STRUCT_SIZE) { 3205 /* We can't fit all the extents into the fixed size buffer. 3206 * Allocate one that is large enough and use it instead. 3207 */ 3208 fm = malloc(outbufsz); 3209 if (!fm) { 3210 return -TARGET_ENOMEM; 3211 } 3212 memcpy(fm, buf_temp, sizeof(struct fiemap)); 3213 free_fm = 1; 3214 } 3215 ret = get_errno(ioctl(fd, ie->host_cmd, fm)); 3216 if (!is_error(ret)) { 3217 target_size_out = target_size_in; 3218 /* An extent_count of 0 means we were only counting the extents 3219 * so there are no structs to copy 3220 */ 3221 if (fm->fm_extent_count != 0) { 3222 target_size_out += fm->fm_mapped_extents * extent_size; 3223 } 3224 argptr = lock_user(VERIFY_WRITE, arg, target_size_out, 0); 3225 if (!argptr) { 3226 ret = -TARGET_EFAULT; 3227 } else { 3228 /* Convert the struct fiemap */ 3229 thunk_convert(argptr, fm, arg_type, THUNK_TARGET); 3230 if (fm->fm_extent_count != 0) { 3231 p = argptr + target_size_in; 3232 /* ...and then all the struct fiemap_extents */ 3233 for (i = 0; i < fm->fm_mapped_extents; i++) { 3234 thunk_convert(p, &fm->fm_extents[i], extent_arg_type, 3235 THUNK_TARGET); 3236 p += extent_size; 3237 } 3238 } 3239 unlock_user(argptr, arg, target_size_out); 3240 } 3241 } 3242 if (free_fm) { 3243 free(fm); 3244 } 3245 return ret; 3246 } 3247 #endif 3248 3249 static abi_long do_ioctl_ifconf(const IOCTLEntry *ie, uint8_t *buf_temp, 3250 int fd, abi_long cmd, abi_long arg) 3251 { 3252 const argtype *arg_type = ie->arg_type; 3253 int target_size; 3254 void *argptr; 3255 int ret; 3256 struct ifconf *host_ifconf; 3257 uint32_t outbufsz; 3258 const argtype ifreq_arg_type[] = { MK_STRUCT(STRUCT_sockaddr_ifreq) }; 3259 int target_ifreq_size; 3260 int nb_ifreq; 3261 int free_buf = 0; 3262 int i; 3263 int target_ifc_len; 3264 abi_long target_ifc_buf; 3265 int host_ifc_len; 3266 char *host_ifc_buf; 3267 3268 assert(arg_type[0] == TYPE_PTR); 3269 assert(ie->access == IOC_RW); 3270 3271 arg_type++; 3272 target_size = thunk_type_size(arg_type, 0); 3273 3274 argptr = lock_user(VERIFY_READ, arg, target_size, 1); 3275 if (!argptr) 3276 return -TARGET_EFAULT; 3277 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST); 3278 unlock_user(argptr, arg, 0); 3279 3280 host_ifconf = (struct ifconf *)(unsigned long)buf_temp; 3281 target_ifc_len = host_ifconf->ifc_len; 3282 target_ifc_buf = (abi_long)(unsigned long)host_ifconf->ifc_buf; 3283 3284 target_ifreq_size = thunk_type_size(ifreq_arg_type, 0); 3285 nb_ifreq = target_ifc_len / target_ifreq_size; 3286 host_ifc_len = nb_ifreq * sizeof(struct ifreq); 3287 3288 outbufsz = sizeof(*host_ifconf) + host_ifc_len; 3289 if (outbufsz > MAX_STRUCT_SIZE) { 3290 /* We can't fit all the extents into the fixed size buffer. 3291 * Allocate one that is large enough and use it instead. 3292 */ 3293 host_ifconf = malloc(outbufsz); 3294 if (!host_ifconf) { 3295 return -TARGET_ENOMEM; 3296 } 3297 memcpy(host_ifconf, buf_temp, sizeof(*host_ifconf)); 3298 free_buf = 1; 3299 } 3300 host_ifc_buf = (char*)host_ifconf + sizeof(*host_ifconf); 3301 3302 host_ifconf->ifc_len = host_ifc_len; 3303 host_ifconf->ifc_buf = host_ifc_buf; 3304 3305 ret = get_errno(ioctl(fd, ie->host_cmd, host_ifconf)); 3306 if (!is_error(ret)) { 3307 /* convert host ifc_len to target ifc_len */ 3308 3309 nb_ifreq = host_ifconf->ifc_len / sizeof(struct ifreq); 3310 target_ifc_len = nb_ifreq * target_ifreq_size; 3311 host_ifconf->ifc_len = target_ifc_len; 3312 3313 /* restore target ifc_buf */ 3314 3315 host_ifconf->ifc_buf = (char *)(unsigned long)target_ifc_buf; 3316 3317 /* copy struct ifconf to target user */ 3318 3319 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0); 3320 if (!argptr) 3321 return -TARGET_EFAULT; 3322 thunk_convert(argptr, host_ifconf, arg_type, THUNK_TARGET); 3323 unlock_user(argptr, arg, target_size); 3324 3325 /* copy ifreq[] to target user */ 3326 3327 argptr = lock_user(VERIFY_WRITE, target_ifc_buf, target_ifc_len, 0); 3328 for (i = 0; i < nb_ifreq ; i++) { 3329 thunk_convert(argptr + i * target_ifreq_size, 3330 host_ifc_buf + i * sizeof(struct ifreq), 3331 ifreq_arg_type, THUNK_TARGET); 3332 } 3333 unlock_user(argptr, target_ifc_buf, target_ifc_len); 3334 } 3335 3336 if (free_buf) { 3337 free(host_ifconf); 3338 } 3339 3340 return ret; 3341 } 3342 3343 static abi_long do_ioctl_dm(const IOCTLEntry *ie, uint8_t *buf_temp, int fd, 3344 abi_long cmd, abi_long arg) 3345 { 3346 void *argptr; 3347 struct dm_ioctl *host_dm; 3348 abi_long guest_data; 3349 uint32_t guest_data_size; 3350 int target_size; 3351 const argtype *arg_type = ie->arg_type; 3352 abi_long ret; 3353 void *big_buf = NULL; 3354 char *host_data; 3355 3356 arg_type++; 3357 target_size = thunk_type_size(arg_type, 0); 3358 argptr = lock_user(VERIFY_READ, arg, target_size, 1); 3359 if (!argptr) { 3360 ret = -TARGET_EFAULT; 3361 goto out; 3362 } 3363 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST); 3364 unlock_user(argptr, arg, 0); 3365 3366 /* buf_temp is too small, so fetch things into a bigger buffer */ 3367 big_buf = g_malloc0(((struct dm_ioctl*)buf_temp)->data_size * 2); 3368 memcpy(big_buf, buf_temp, target_size); 3369 buf_temp = big_buf; 3370 host_dm = big_buf; 3371 3372 guest_data = arg + host_dm->data_start; 3373 if ((guest_data - arg) < 0) { 3374 ret = -EINVAL; 3375 goto out; 3376 } 3377 guest_data_size = host_dm->data_size - host_dm->data_start; 3378 host_data = (char*)host_dm + host_dm->data_start; 3379 3380 argptr = lock_user(VERIFY_READ, guest_data, guest_data_size, 1); 3381 switch (ie->host_cmd) { 3382 case DM_REMOVE_ALL: 3383 case DM_LIST_DEVICES: 3384 case DM_DEV_CREATE: 3385 case DM_DEV_REMOVE: 3386 case DM_DEV_SUSPEND: 3387 case DM_DEV_STATUS: 3388 case DM_DEV_WAIT: 3389 case DM_TABLE_STATUS: 3390 case DM_TABLE_CLEAR: 3391 case DM_TABLE_DEPS: 3392 case DM_LIST_VERSIONS: 3393 /* no input data */ 3394 break; 3395 case DM_DEV_RENAME: 3396 case DM_DEV_SET_GEOMETRY: 3397 /* data contains only strings */ 3398 memcpy(host_data, argptr, guest_data_size); 3399 break; 3400 case DM_TARGET_MSG: 3401 memcpy(host_data, argptr, guest_data_size); 3402 *(uint64_t*)host_data = tswap64(*(uint64_t*)argptr); 3403 break; 3404 case DM_TABLE_LOAD: 3405 { 3406 void *gspec = argptr; 3407 void *cur_data = host_data; 3408 const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_target_spec) }; 3409 int spec_size = thunk_type_size(arg_type, 0); 3410 int i; 3411 3412 for (i = 0; i < host_dm->target_count; i++) { 3413 struct dm_target_spec *spec = cur_data; 3414 uint32_t next; 3415 int slen; 3416 3417 thunk_convert(spec, gspec, arg_type, THUNK_HOST); 3418 slen = strlen((char*)gspec + spec_size) + 1; 3419 next = spec->next; 3420 spec->next = sizeof(*spec) + slen; 3421 strcpy((char*)&spec[1], gspec + spec_size); 3422 gspec += next; 3423 cur_data += spec->next; 3424 } 3425 break; 3426 } 3427 default: 3428 ret = -TARGET_EINVAL; 3429 goto out; 3430 } 3431 unlock_user(argptr, guest_data, 0); 3432 3433 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 3434 if (!is_error(ret)) { 3435 guest_data = arg + host_dm->data_start; 3436 guest_data_size = host_dm->data_size - host_dm->data_start; 3437 argptr = lock_user(VERIFY_WRITE, guest_data, guest_data_size, 0); 3438 switch (ie->host_cmd) { 3439 case DM_REMOVE_ALL: 3440 case DM_DEV_CREATE: 3441 case DM_DEV_REMOVE: 3442 case DM_DEV_RENAME: 3443 case DM_DEV_SUSPEND: 3444 case DM_DEV_STATUS: 3445 case DM_TABLE_LOAD: 3446 case DM_TABLE_CLEAR: 3447 case DM_TARGET_MSG: 3448 case DM_DEV_SET_GEOMETRY: 3449 /* no return data */ 3450 break; 3451 case DM_LIST_DEVICES: 3452 { 3453 struct dm_name_list *nl = (void*)host_dm + host_dm->data_start; 3454 uint32_t remaining_data = guest_data_size; 3455 void *cur_data = argptr; 3456 const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_name_list) }; 3457 int nl_size = 12; /* can't use thunk_size due to alignment */ 3458 3459 while (1) { 3460 uint32_t next = nl->next; 3461 if (next) { 3462 nl->next = nl_size + (strlen(nl->name) + 1); 3463 } 3464 if (remaining_data < nl->next) { 3465 host_dm->flags |= DM_BUFFER_FULL_FLAG; 3466 break; 3467 } 3468 thunk_convert(cur_data, nl, arg_type, THUNK_TARGET); 3469 strcpy(cur_data + nl_size, nl->name); 3470 cur_data += nl->next; 3471 remaining_data -= nl->next; 3472 if (!next) { 3473 break; 3474 } 3475 nl = (void*)nl + next; 3476 } 3477 break; 3478 } 3479 case DM_DEV_WAIT: 3480 case DM_TABLE_STATUS: 3481 { 3482 struct dm_target_spec *spec = (void*)host_dm + host_dm->data_start; 3483 void *cur_data = argptr; 3484 const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_target_spec) }; 3485 int spec_size = thunk_type_size(arg_type, 0); 3486 int i; 3487 3488 for (i = 0; i < host_dm->target_count; i++) { 3489 uint32_t next = spec->next; 3490 int slen = strlen((char*)&spec[1]) + 1; 3491 spec->next = (cur_data - argptr) + spec_size + slen; 3492 if (guest_data_size < spec->next) { 3493 host_dm->flags |= DM_BUFFER_FULL_FLAG; 3494 break; 3495 } 3496 thunk_convert(cur_data, spec, arg_type, THUNK_TARGET); 3497 strcpy(cur_data + spec_size, (char*)&spec[1]); 3498 cur_data = argptr + spec->next; 3499 spec = (void*)host_dm + host_dm->data_start + next; 3500 } 3501 break; 3502 } 3503 case DM_TABLE_DEPS: 3504 { 3505 void *hdata = (void*)host_dm + host_dm->data_start; 3506 int count = *(uint32_t*)hdata; 3507 uint64_t *hdev = hdata + 8; 3508 uint64_t *gdev = argptr + 8; 3509 int i; 3510 3511 *(uint32_t*)argptr = tswap32(count); 3512 for (i = 0; i < count; i++) { 3513 *gdev = tswap64(*hdev); 3514 gdev++; 3515 hdev++; 3516 } 3517 break; 3518 } 3519 case DM_LIST_VERSIONS: 3520 { 3521 struct dm_target_versions *vers = (void*)host_dm + host_dm->data_start; 3522 uint32_t remaining_data = guest_data_size; 3523 void *cur_data = argptr; 3524 const argtype arg_type[] = { MK_STRUCT(STRUCT_dm_target_versions) }; 3525 int vers_size = thunk_type_size(arg_type, 0); 3526 3527 while (1) { 3528 uint32_t next = vers->next; 3529 if (next) { 3530 vers->next = vers_size + (strlen(vers->name) + 1); 3531 } 3532 if (remaining_data < vers->next) { 3533 host_dm->flags |= DM_BUFFER_FULL_FLAG; 3534 break; 3535 } 3536 thunk_convert(cur_data, vers, arg_type, THUNK_TARGET); 3537 strcpy(cur_data + vers_size, vers->name); 3538 cur_data += vers->next; 3539 remaining_data -= vers->next; 3540 if (!next) { 3541 break; 3542 } 3543 vers = (void*)vers + next; 3544 } 3545 break; 3546 } 3547 default: 3548 ret = -TARGET_EINVAL; 3549 goto out; 3550 } 3551 unlock_user(argptr, guest_data, guest_data_size); 3552 3553 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0); 3554 if (!argptr) { 3555 ret = -TARGET_EFAULT; 3556 goto out; 3557 } 3558 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET); 3559 unlock_user(argptr, arg, target_size); 3560 } 3561 out: 3562 g_free(big_buf); 3563 return ret; 3564 } 3565 3566 static abi_long do_ioctl_rt(const IOCTLEntry *ie, uint8_t *buf_temp, 3567 int fd, abi_long cmd, abi_long arg) 3568 { 3569 const argtype *arg_type = ie->arg_type; 3570 const StructEntry *se; 3571 const argtype *field_types; 3572 const int *dst_offsets, *src_offsets; 3573 int target_size; 3574 void *argptr; 3575 abi_ulong *target_rt_dev_ptr; 3576 unsigned long *host_rt_dev_ptr; 3577 abi_long ret; 3578 int i; 3579 3580 assert(ie->access == IOC_W); 3581 assert(*arg_type == TYPE_PTR); 3582 arg_type++; 3583 assert(*arg_type == TYPE_STRUCT); 3584 target_size = thunk_type_size(arg_type, 0); 3585 argptr = lock_user(VERIFY_READ, arg, target_size, 1); 3586 if (!argptr) { 3587 return -TARGET_EFAULT; 3588 } 3589 arg_type++; 3590 assert(*arg_type == (int)STRUCT_rtentry); 3591 se = struct_entries + *arg_type++; 3592 assert(se->convert[0] == NULL); 3593 /* convert struct here to be able to catch rt_dev string */ 3594 field_types = se->field_types; 3595 dst_offsets = se->field_offsets[THUNK_HOST]; 3596 src_offsets = se->field_offsets[THUNK_TARGET]; 3597 for (i = 0; i < se->nb_fields; i++) { 3598 if (dst_offsets[i] == offsetof(struct rtentry, rt_dev)) { 3599 assert(*field_types == TYPE_PTRVOID); 3600 target_rt_dev_ptr = (abi_ulong *)(argptr + src_offsets[i]); 3601 host_rt_dev_ptr = (unsigned long *)(buf_temp + dst_offsets[i]); 3602 if (*target_rt_dev_ptr != 0) { 3603 *host_rt_dev_ptr = (unsigned long)lock_user_string( 3604 tswapal(*target_rt_dev_ptr)); 3605 if (!*host_rt_dev_ptr) { 3606 unlock_user(argptr, arg, 0); 3607 return -TARGET_EFAULT; 3608 } 3609 } else { 3610 *host_rt_dev_ptr = 0; 3611 } 3612 field_types++; 3613 continue; 3614 } 3615 field_types = thunk_convert(buf_temp + dst_offsets[i], 3616 argptr + src_offsets[i], 3617 field_types, THUNK_HOST); 3618 } 3619 unlock_user(argptr, arg, 0); 3620 3621 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 3622 if (*host_rt_dev_ptr != 0) { 3623 unlock_user((void *)*host_rt_dev_ptr, 3624 *target_rt_dev_ptr, 0); 3625 } 3626 return ret; 3627 } 3628 3629 static IOCTLEntry ioctl_entries[] = { 3630 #define IOCTL(cmd, access, ...) \ 3631 { TARGET_ ## cmd, cmd, #cmd, access, 0, { __VA_ARGS__ } }, 3632 #define IOCTL_SPECIAL(cmd, access, dofn, ...) \ 3633 { TARGET_ ## cmd, cmd, #cmd, access, dofn, { __VA_ARGS__ } }, 3634 #include "ioctls.h" 3635 { 0, 0, }, 3636 }; 3637 3638 /* ??? Implement proper locking for ioctls. */ 3639 /* do_ioctl() Must return target values and target errnos. */ 3640 static abi_long do_ioctl(int fd, abi_long cmd, abi_long arg) 3641 { 3642 const IOCTLEntry *ie; 3643 const argtype *arg_type; 3644 abi_long ret; 3645 uint8_t buf_temp[MAX_STRUCT_SIZE]; 3646 int target_size; 3647 void *argptr; 3648 3649 ie = ioctl_entries; 3650 for(;;) { 3651 if (ie->target_cmd == 0) { 3652 gemu_log("Unsupported ioctl: cmd=0x%04lx\n", (long)cmd); 3653 return -TARGET_ENOSYS; 3654 } 3655 if (ie->target_cmd == cmd) 3656 break; 3657 ie++; 3658 } 3659 arg_type = ie->arg_type; 3660 #if defined(DEBUG) 3661 gemu_log("ioctl: cmd=0x%04lx (%s)\n", (long)cmd, ie->name); 3662 #endif 3663 if (ie->do_ioctl) { 3664 return ie->do_ioctl(ie, buf_temp, fd, cmd, arg); 3665 } 3666 3667 switch(arg_type[0]) { 3668 case TYPE_NULL: 3669 /* no argument */ 3670 ret = get_errno(ioctl(fd, ie->host_cmd)); 3671 break; 3672 case TYPE_PTRVOID: 3673 case TYPE_INT: 3674 /* int argment */ 3675 ret = get_errno(ioctl(fd, ie->host_cmd, arg)); 3676 break; 3677 case TYPE_PTR: 3678 arg_type++; 3679 target_size = thunk_type_size(arg_type, 0); 3680 switch(ie->access) { 3681 case IOC_R: 3682 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 3683 if (!is_error(ret)) { 3684 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0); 3685 if (!argptr) 3686 return -TARGET_EFAULT; 3687 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET); 3688 unlock_user(argptr, arg, target_size); 3689 } 3690 break; 3691 case IOC_W: 3692 argptr = lock_user(VERIFY_READ, arg, target_size, 1); 3693 if (!argptr) 3694 return -TARGET_EFAULT; 3695 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST); 3696 unlock_user(argptr, arg, 0); 3697 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 3698 break; 3699 default: 3700 case IOC_RW: 3701 argptr = lock_user(VERIFY_READ, arg, target_size, 1); 3702 if (!argptr) 3703 return -TARGET_EFAULT; 3704 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST); 3705 unlock_user(argptr, arg, 0); 3706 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 3707 if (!is_error(ret)) { 3708 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0); 3709 if (!argptr) 3710 return -TARGET_EFAULT; 3711 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET); 3712 unlock_user(argptr, arg, target_size); 3713 } 3714 break; 3715 } 3716 break; 3717 default: 3718 gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n", 3719 (long)cmd, arg_type[0]); 3720 ret = -TARGET_ENOSYS; 3721 break; 3722 } 3723 return ret; 3724 } 3725 3726 static const bitmask_transtbl iflag_tbl[] = { 3727 { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK }, 3728 { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT }, 3729 { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR }, 3730 { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK }, 3731 { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK }, 3732 { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP }, 3733 { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR }, 3734 { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR }, 3735 { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL }, 3736 { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC }, 3737 { TARGET_IXON, TARGET_IXON, IXON, IXON }, 3738 { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY }, 3739 { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF }, 3740 { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL }, 3741 { 0, 0, 0, 0 } 3742 }; 3743 3744 static const bitmask_transtbl oflag_tbl[] = { 3745 { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST }, 3746 { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC }, 3747 { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR }, 3748 { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL }, 3749 { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR }, 3750 { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET }, 3751 { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL }, 3752 { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL }, 3753 { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 }, 3754 { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 }, 3755 { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 }, 3756 { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 }, 3757 { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 }, 3758 { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 }, 3759 { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 }, 3760 { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 }, 3761 { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 }, 3762 { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 }, 3763 { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 }, 3764 { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 }, 3765 { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 }, 3766 { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 }, 3767 { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 }, 3768 { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 }, 3769 { 0, 0, 0, 0 } 3770 }; 3771 3772 static const bitmask_transtbl cflag_tbl[] = { 3773 { TARGET_CBAUD, TARGET_B0, CBAUD, B0 }, 3774 { TARGET_CBAUD, TARGET_B50, CBAUD, B50 }, 3775 { TARGET_CBAUD, TARGET_B75, CBAUD, B75 }, 3776 { TARGET_CBAUD, TARGET_B110, CBAUD, B110 }, 3777 { TARGET_CBAUD, TARGET_B134, CBAUD, B134 }, 3778 { TARGET_CBAUD, TARGET_B150, CBAUD, B150 }, 3779 { TARGET_CBAUD, TARGET_B200, CBAUD, B200 }, 3780 { TARGET_CBAUD, TARGET_B300, CBAUD, B300 }, 3781 { TARGET_CBAUD, TARGET_B600, CBAUD, B600 }, 3782 { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 }, 3783 { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 }, 3784 { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 }, 3785 { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 }, 3786 { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 }, 3787 { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 }, 3788 { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 }, 3789 { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 }, 3790 { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 }, 3791 { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 }, 3792 { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 }, 3793 { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 }, 3794 { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 }, 3795 { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 }, 3796 { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 }, 3797 { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB }, 3798 { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD }, 3799 { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB }, 3800 { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD }, 3801 { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL }, 3802 { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL }, 3803 { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS }, 3804 { 0, 0, 0, 0 } 3805 }; 3806 3807 static const bitmask_transtbl lflag_tbl[] = { 3808 { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG }, 3809 { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON }, 3810 { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE }, 3811 { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO }, 3812 { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE }, 3813 { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK }, 3814 { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL }, 3815 { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH }, 3816 { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP }, 3817 { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL }, 3818 { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT }, 3819 { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE }, 3820 { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO }, 3821 { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN }, 3822 { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN }, 3823 { 0, 0, 0, 0 } 3824 }; 3825 3826 static void target_to_host_termios (void *dst, const void *src) 3827 { 3828 struct host_termios *host = dst; 3829 const struct target_termios *target = src; 3830 3831 host->c_iflag = 3832 target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl); 3833 host->c_oflag = 3834 target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl); 3835 host->c_cflag = 3836 target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl); 3837 host->c_lflag = 3838 target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl); 3839 host->c_line = target->c_line; 3840 3841 memset(host->c_cc, 0, sizeof(host->c_cc)); 3842 host->c_cc[VINTR] = target->c_cc[TARGET_VINTR]; 3843 host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT]; 3844 host->c_cc[VERASE] = target->c_cc[TARGET_VERASE]; 3845 host->c_cc[VKILL] = target->c_cc[TARGET_VKILL]; 3846 host->c_cc[VEOF] = target->c_cc[TARGET_VEOF]; 3847 host->c_cc[VTIME] = target->c_cc[TARGET_VTIME]; 3848 host->c_cc[VMIN] = target->c_cc[TARGET_VMIN]; 3849 host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC]; 3850 host->c_cc[VSTART] = target->c_cc[TARGET_VSTART]; 3851 host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP]; 3852 host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP]; 3853 host->c_cc[VEOL] = target->c_cc[TARGET_VEOL]; 3854 host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT]; 3855 host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD]; 3856 host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE]; 3857 host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT]; 3858 host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2]; 3859 } 3860 3861 static void host_to_target_termios (void *dst, const void *src) 3862 { 3863 struct target_termios *target = dst; 3864 const struct host_termios *host = src; 3865 3866 target->c_iflag = 3867 tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl)); 3868 target->c_oflag = 3869 tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl)); 3870 target->c_cflag = 3871 tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl)); 3872 target->c_lflag = 3873 tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl)); 3874 target->c_line = host->c_line; 3875 3876 memset(target->c_cc, 0, sizeof(target->c_cc)); 3877 target->c_cc[TARGET_VINTR] = host->c_cc[VINTR]; 3878 target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT]; 3879 target->c_cc[TARGET_VERASE] = host->c_cc[VERASE]; 3880 target->c_cc[TARGET_VKILL] = host->c_cc[VKILL]; 3881 target->c_cc[TARGET_VEOF] = host->c_cc[VEOF]; 3882 target->c_cc[TARGET_VTIME] = host->c_cc[VTIME]; 3883 target->c_cc[TARGET_VMIN] = host->c_cc[VMIN]; 3884 target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC]; 3885 target->c_cc[TARGET_VSTART] = host->c_cc[VSTART]; 3886 target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP]; 3887 target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP]; 3888 target->c_cc[TARGET_VEOL] = host->c_cc[VEOL]; 3889 target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT]; 3890 target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD]; 3891 target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE]; 3892 target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT]; 3893 target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2]; 3894 } 3895 3896 static const StructEntry struct_termios_def = { 3897 .convert = { host_to_target_termios, target_to_host_termios }, 3898 .size = { sizeof(struct target_termios), sizeof(struct host_termios) }, 3899 .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) }, 3900 }; 3901 3902 static bitmask_transtbl mmap_flags_tbl[] = { 3903 { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED }, 3904 { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE }, 3905 { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED }, 3906 { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS }, 3907 { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN }, 3908 { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE }, 3909 { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE }, 3910 { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED }, 3911 { 0, 0, 0, 0 } 3912 }; 3913 3914 #if defined(TARGET_I386) 3915 3916 /* NOTE: there is really one LDT for all the threads */ 3917 static uint8_t *ldt_table; 3918 3919 static abi_long read_ldt(abi_ulong ptr, unsigned long bytecount) 3920 { 3921 int size; 3922 void *p; 3923 3924 if (!ldt_table) 3925 return 0; 3926 size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE; 3927 if (size > bytecount) 3928 size = bytecount; 3929 p = lock_user(VERIFY_WRITE, ptr, size, 0); 3930 if (!p) 3931 return -TARGET_EFAULT; 3932 /* ??? Should this by byteswapped? */ 3933 memcpy(p, ldt_table, size); 3934 unlock_user(p, ptr, size); 3935 return size; 3936 } 3937 3938 /* XXX: add locking support */ 3939 static abi_long write_ldt(CPUX86State *env, 3940 abi_ulong ptr, unsigned long bytecount, int oldmode) 3941 { 3942 struct target_modify_ldt_ldt_s ldt_info; 3943 struct target_modify_ldt_ldt_s *target_ldt_info; 3944 int seg_32bit, contents, read_exec_only, limit_in_pages; 3945 int seg_not_present, useable, lm; 3946 uint32_t *lp, entry_1, entry_2; 3947 3948 if (bytecount != sizeof(ldt_info)) 3949 return -TARGET_EINVAL; 3950 if (!lock_user_struct(VERIFY_READ, target_ldt_info, ptr, 1)) 3951 return -TARGET_EFAULT; 3952 ldt_info.entry_number = tswap32(target_ldt_info->entry_number); 3953 ldt_info.base_addr = tswapal(target_ldt_info->base_addr); 3954 ldt_info.limit = tswap32(target_ldt_info->limit); 3955 ldt_info.flags = tswap32(target_ldt_info->flags); 3956 unlock_user_struct(target_ldt_info, ptr, 0); 3957 3958 if (ldt_info.entry_number >= TARGET_LDT_ENTRIES) 3959 return -TARGET_EINVAL; 3960 seg_32bit = ldt_info.flags & 1; 3961 contents = (ldt_info.flags >> 1) & 3; 3962 read_exec_only = (ldt_info.flags >> 3) & 1; 3963 limit_in_pages = (ldt_info.flags >> 4) & 1; 3964 seg_not_present = (ldt_info.flags >> 5) & 1; 3965 useable = (ldt_info.flags >> 6) & 1; 3966 #ifdef TARGET_ABI32 3967 lm = 0; 3968 #else 3969 lm = (ldt_info.flags >> 7) & 1; 3970 #endif 3971 if (contents == 3) { 3972 if (oldmode) 3973 return -TARGET_EINVAL; 3974 if (seg_not_present == 0) 3975 return -TARGET_EINVAL; 3976 } 3977 /* allocate the LDT */ 3978 if (!ldt_table) { 3979 env->ldt.base = target_mmap(0, 3980 TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE, 3981 PROT_READ|PROT_WRITE, 3982 MAP_ANONYMOUS|MAP_PRIVATE, -1, 0); 3983 if (env->ldt.base == -1) 3984 return -TARGET_ENOMEM; 3985 memset(g2h(env->ldt.base), 0, 3986 TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE); 3987 env->ldt.limit = 0xffff; 3988 ldt_table = g2h(env->ldt.base); 3989 } 3990 3991 /* NOTE: same code as Linux kernel */ 3992 /* Allow LDTs to be cleared by the user. */ 3993 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) { 3994 if (oldmode || 3995 (contents == 0 && 3996 read_exec_only == 1 && 3997 seg_32bit == 0 && 3998 limit_in_pages == 0 && 3999 seg_not_present == 1 && 4000 useable == 0 )) { 4001 entry_1 = 0; 4002 entry_2 = 0; 4003 goto install; 4004 } 4005 } 4006 4007 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) | 4008 (ldt_info.limit & 0x0ffff); 4009 entry_2 = (ldt_info.base_addr & 0xff000000) | 4010 ((ldt_info.base_addr & 0x00ff0000) >> 16) | 4011 (ldt_info.limit & 0xf0000) | 4012 ((read_exec_only ^ 1) << 9) | 4013 (contents << 10) | 4014 ((seg_not_present ^ 1) << 15) | 4015 (seg_32bit << 22) | 4016 (limit_in_pages << 23) | 4017 (lm << 21) | 4018 0x7000; 4019 if (!oldmode) 4020 entry_2 |= (useable << 20); 4021 4022 /* Install the new entry ... */ 4023 install: 4024 lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3)); 4025 lp[0] = tswap32(entry_1); 4026 lp[1] = tswap32(entry_2); 4027 return 0; 4028 } 4029 4030 /* specific and weird i386 syscalls */ 4031 static abi_long do_modify_ldt(CPUX86State *env, int func, abi_ulong ptr, 4032 unsigned long bytecount) 4033 { 4034 abi_long ret; 4035 4036 switch (func) { 4037 case 0: 4038 ret = read_ldt(ptr, bytecount); 4039 break; 4040 case 1: 4041 ret = write_ldt(env, ptr, bytecount, 1); 4042 break; 4043 case 0x11: 4044 ret = write_ldt(env, ptr, bytecount, 0); 4045 break; 4046 default: 4047 ret = -TARGET_ENOSYS; 4048 break; 4049 } 4050 return ret; 4051 } 4052 4053 #if defined(TARGET_I386) && defined(TARGET_ABI32) 4054 abi_long do_set_thread_area(CPUX86State *env, abi_ulong ptr) 4055 { 4056 uint64_t *gdt_table = g2h(env->gdt.base); 4057 struct target_modify_ldt_ldt_s ldt_info; 4058 struct target_modify_ldt_ldt_s *target_ldt_info; 4059 int seg_32bit, contents, read_exec_only, limit_in_pages; 4060 int seg_not_present, useable, lm; 4061 uint32_t *lp, entry_1, entry_2; 4062 int i; 4063 4064 lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1); 4065 if (!target_ldt_info) 4066 return -TARGET_EFAULT; 4067 ldt_info.entry_number = tswap32(target_ldt_info->entry_number); 4068 ldt_info.base_addr = tswapal(target_ldt_info->base_addr); 4069 ldt_info.limit = tswap32(target_ldt_info->limit); 4070 ldt_info.flags = tswap32(target_ldt_info->flags); 4071 if (ldt_info.entry_number == -1) { 4072 for (i=TARGET_GDT_ENTRY_TLS_MIN; i<=TARGET_GDT_ENTRY_TLS_MAX; i++) { 4073 if (gdt_table[i] == 0) { 4074 ldt_info.entry_number = i; 4075 target_ldt_info->entry_number = tswap32(i); 4076 break; 4077 } 4078 } 4079 } 4080 unlock_user_struct(target_ldt_info, ptr, 1); 4081 4082 if (ldt_info.entry_number < TARGET_GDT_ENTRY_TLS_MIN || 4083 ldt_info.entry_number > TARGET_GDT_ENTRY_TLS_MAX) 4084 return -TARGET_EINVAL; 4085 seg_32bit = ldt_info.flags & 1; 4086 contents = (ldt_info.flags >> 1) & 3; 4087 read_exec_only = (ldt_info.flags >> 3) & 1; 4088 limit_in_pages = (ldt_info.flags >> 4) & 1; 4089 seg_not_present = (ldt_info.flags >> 5) & 1; 4090 useable = (ldt_info.flags >> 6) & 1; 4091 #ifdef TARGET_ABI32 4092 lm = 0; 4093 #else 4094 lm = (ldt_info.flags >> 7) & 1; 4095 #endif 4096 4097 if (contents == 3) { 4098 if (seg_not_present == 0) 4099 return -TARGET_EINVAL; 4100 } 4101 4102 /* NOTE: same code as Linux kernel */ 4103 /* Allow LDTs to be cleared by the user. */ 4104 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) { 4105 if ((contents == 0 && 4106 read_exec_only == 1 && 4107 seg_32bit == 0 && 4108 limit_in_pages == 0 && 4109 seg_not_present == 1 && 4110 useable == 0 )) { 4111 entry_1 = 0; 4112 entry_2 = 0; 4113 goto install; 4114 } 4115 } 4116 4117 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) | 4118 (ldt_info.limit & 0x0ffff); 4119 entry_2 = (ldt_info.base_addr & 0xff000000) | 4120 ((ldt_info.base_addr & 0x00ff0000) >> 16) | 4121 (ldt_info.limit & 0xf0000) | 4122 ((read_exec_only ^ 1) << 9) | 4123 (contents << 10) | 4124 ((seg_not_present ^ 1) << 15) | 4125 (seg_32bit << 22) | 4126 (limit_in_pages << 23) | 4127 (useable << 20) | 4128 (lm << 21) | 4129 0x7000; 4130 4131 /* Install the new entry ... */ 4132 install: 4133 lp = (uint32_t *)(gdt_table + ldt_info.entry_number); 4134 lp[0] = tswap32(entry_1); 4135 lp[1] = tswap32(entry_2); 4136 return 0; 4137 } 4138 4139 static abi_long do_get_thread_area(CPUX86State *env, abi_ulong ptr) 4140 { 4141 struct target_modify_ldt_ldt_s *target_ldt_info; 4142 uint64_t *gdt_table = g2h(env->gdt.base); 4143 uint32_t base_addr, limit, flags; 4144 int seg_32bit, contents, read_exec_only, limit_in_pages, idx; 4145 int seg_not_present, useable, lm; 4146 uint32_t *lp, entry_1, entry_2; 4147 4148 lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1); 4149 if (!target_ldt_info) 4150 return -TARGET_EFAULT; 4151 idx = tswap32(target_ldt_info->entry_number); 4152 if (idx < TARGET_GDT_ENTRY_TLS_MIN || 4153 idx > TARGET_GDT_ENTRY_TLS_MAX) { 4154 unlock_user_struct(target_ldt_info, ptr, 1); 4155 return -TARGET_EINVAL; 4156 } 4157 lp = (uint32_t *)(gdt_table + idx); 4158 entry_1 = tswap32(lp[0]); 4159 entry_2 = tswap32(lp[1]); 4160 4161 read_exec_only = ((entry_2 >> 9) & 1) ^ 1; 4162 contents = (entry_2 >> 10) & 3; 4163 seg_not_present = ((entry_2 >> 15) & 1) ^ 1; 4164 seg_32bit = (entry_2 >> 22) & 1; 4165 limit_in_pages = (entry_2 >> 23) & 1; 4166 useable = (entry_2 >> 20) & 1; 4167 #ifdef TARGET_ABI32 4168 lm = 0; 4169 #else 4170 lm = (entry_2 >> 21) & 1; 4171 #endif 4172 flags = (seg_32bit << 0) | (contents << 1) | 4173 (read_exec_only << 3) | (limit_in_pages << 4) | 4174 (seg_not_present << 5) | (useable << 6) | (lm << 7); 4175 limit = (entry_1 & 0xffff) | (entry_2 & 0xf0000); 4176 base_addr = (entry_1 >> 16) | 4177 (entry_2 & 0xff000000) | 4178 ((entry_2 & 0xff) << 16); 4179 target_ldt_info->base_addr = tswapal(base_addr); 4180 target_ldt_info->limit = tswap32(limit); 4181 target_ldt_info->flags = tswap32(flags); 4182 unlock_user_struct(target_ldt_info, ptr, 1); 4183 return 0; 4184 } 4185 #endif /* TARGET_I386 && TARGET_ABI32 */ 4186 4187 #ifndef TARGET_ABI32 4188 abi_long do_arch_prctl(CPUX86State *env, int code, abi_ulong addr) 4189 { 4190 abi_long ret = 0; 4191 abi_ulong val; 4192 int idx; 4193 4194 switch(code) { 4195 case TARGET_ARCH_SET_GS: 4196 case TARGET_ARCH_SET_FS: 4197 if (code == TARGET_ARCH_SET_GS) 4198 idx = R_GS; 4199 else 4200 idx = R_FS; 4201 cpu_x86_load_seg(env, idx, 0); 4202 env->segs[idx].base = addr; 4203 break; 4204 case TARGET_ARCH_GET_GS: 4205 case TARGET_ARCH_GET_FS: 4206 if (code == TARGET_ARCH_GET_GS) 4207 idx = R_GS; 4208 else 4209 idx = R_FS; 4210 val = env->segs[idx].base; 4211 if (put_user(val, addr, abi_ulong)) 4212 ret = -TARGET_EFAULT; 4213 break; 4214 default: 4215 ret = -TARGET_EINVAL; 4216 break; 4217 } 4218 return ret; 4219 } 4220 #endif 4221 4222 #endif /* defined(TARGET_I386) */ 4223 4224 #define NEW_STACK_SIZE 0x40000 4225 4226 4227 static pthread_mutex_t clone_lock = PTHREAD_MUTEX_INITIALIZER; 4228 typedef struct { 4229 CPUArchState *env; 4230 pthread_mutex_t mutex; 4231 pthread_cond_t cond; 4232 pthread_t thread; 4233 uint32_t tid; 4234 abi_ulong child_tidptr; 4235 abi_ulong parent_tidptr; 4236 sigset_t sigmask; 4237 } new_thread_info; 4238 4239 static void *clone_func(void *arg) 4240 { 4241 new_thread_info *info = arg; 4242 CPUArchState *env; 4243 CPUState *cpu; 4244 TaskState *ts; 4245 4246 env = info->env; 4247 cpu = ENV_GET_CPU(env); 4248 thread_cpu = cpu; 4249 ts = (TaskState *)env->opaque; 4250 info->tid = gettid(); 4251 cpu->host_tid = info->tid; 4252 task_settid(ts); 4253 if (info->child_tidptr) 4254 put_user_u32(info->tid, info->child_tidptr); 4255 if (info->parent_tidptr) 4256 put_user_u32(info->tid, info->parent_tidptr); 4257 /* Enable signals. */ 4258 sigprocmask(SIG_SETMASK, &info->sigmask, NULL); 4259 /* Signal to the parent that we're ready. */ 4260 pthread_mutex_lock(&info->mutex); 4261 pthread_cond_broadcast(&info->cond); 4262 pthread_mutex_unlock(&info->mutex); 4263 /* Wait until the parent has finshed initializing the tls state. */ 4264 pthread_mutex_lock(&clone_lock); 4265 pthread_mutex_unlock(&clone_lock); 4266 cpu_loop(env); 4267 /* never exits */ 4268 return NULL; 4269 } 4270 4271 /* do_fork() Must return host values and target errnos (unlike most 4272 do_*() functions). */ 4273 static int do_fork(CPUArchState *env, unsigned int flags, abi_ulong newsp, 4274 abi_ulong parent_tidptr, target_ulong newtls, 4275 abi_ulong child_tidptr) 4276 { 4277 int ret; 4278 TaskState *ts; 4279 CPUArchState *new_env; 4280 unsigned int nptl_flags; 4281 sigset_t sigmask; 4282 4283 /* Emulate vfork() with fork() */ 4284 if (flags & CLONE_VFORK) 4285 flags &= ~(CLONE_VFORK | CLONE_VM); 4286 4287 if (flags & CLONE_VM) { 4288 TaskState *parent_ts = (TaskState *)env->opaque; 4289 new_thread_info info; 4290 pthread_attr_t attr; 4291 4292 ts = g_malloc0(sizeof(TaskState)); 4293 init_task_state(ts); 4294 /* we create a new CPU instance. */ 4295 new_env = cpu_copy(env); 4296 /* Init regs that differ from the parent. */ 4297 cpu_clone_regs(new_env, newsp); 4298 new_env->opaque = ts; 4299 ts->bprm = parent_ts->bprm; 4300 ts->info = parent_ts->info; 4301 nptl_flags = flags; 4302 flags &= ~CLONE_NPTL_FLAGS2; 4303 4304 if (nptl_flags & CLONE_CHILD_CLEARTID) { 4305 ts->child_tidptr = child_tidptr; 4306 } 4307 4308 if (nptl_flags & CLONE_SETTLS) 4309 cpu_set_tls (new_env, newtls); 4310 4311 /* Grab a mutex so that thread setup appears atomic. */ 4312 pthread_mutex_lock(&clone_lock); 4313 4314 memset(&info, 0, sizeof(info)); 4315 pthread_mutex_init(&info.mutex, NULL); 4316 pthread_mutex_lock(&info.mutex); 4317 pthread_cond_init(&info.cond, NULL); 4318 info.env = new_env; 4319 if (nptl_flags & CLONE_CHILD_SETTID) 4320 info.child_tidptr = child_tidptr; 4321 if (nptl_flags & CLONE_PARENT_SETTID) 4322 info.parent_tidptr = parent_tidptr; 4323 4324 ret = pthread_attr_init(&attr); 4325 ret = pthread_attr_setstacksize(&attr, NEW_STACK_SIZE); 4326 ret = pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED); 4327 /* It is not safe to deliver signals until the child has finished 4328 initializing, so temporarily block all signals. */ 4329 sigfillset(&sigmask); 4330 sigprocmask(SIG_BLOCK, &sigmask, &info.sigmask); 4331 4332 ret = pthread_create(&info.thread, &attr, clone_func, &info); 4333 /* TODO: Free new CPU state if thread creation failed. */ 4334 4335 sigprocmask(SIG_SETMASK, &info.sigmask, NULL); 4336 pthread_attr_destroy(&attr); 4337 if (ret == 0) { 4338 /* Wait for the child to initialize. */ 4339 pthread_cond_wait(&info.cond, &info.mutex); 4340 ret = info.tid; 4341 if (flags & CLONE_PARENT_SETTID) 4342 put_user_u32(ret, parent_tidptr); 4343 } else { 4344 ret = -1; 4345 } 4346 pthread_mutex_unlock(&info.mutex); 4347 pthread_cond_destroy(&info.cond); 4348 pthread_mutex_destroy(&info.mutex); 4349 pthread_mutex_unlock(&clone_lock); 4350 } else { 4351 /* if no CLONE_VM, we consider it is a fork */ 4352 if ((flags & ~(CSIGNAL | CLONE_NPTL_FLAGS2)) != 0) 4353 return -EINVAL; 4354 fork_start(); 4355 ret = fork(); 4356 if (ret == 0) { 4357 /* Child Process. */ 4358 cpu_clone_regs(env, newsp); 4359 fork_end(1); 4360 /* There is a race condition here. The parent process could 4361 theoretically read the TID in the child process before the child 4362 tid is set. This would require using either ptrace 4363 (not implemented) or having *_tidptr to point at a shared memory 4364 mapping. We can't repeat the spinlock hack used above because 4365 the child process gets its own copy of the lock. */ 4366 if (flags & CLONE_CHILD_SETTID) 4367 put_user_u32(gettid(), child_tidptr); 4368 if (flags & CLONE_PARENT_SETTID) 4369 put_user_u32(gettid(), parent_tidptr); 4370 ts = (TaskState *)env->opaque; 4371 if (flags & CLONE_SETTLS) 4372 cpu_set_tls (env, newtls); 4373 if (flags & CLONE_CHILD_CLEARTID) 4374 ts->child_tidptr = child_tidptr; 4375 } else { 4376 fork_end(0); 4377 } 4378 } 4379 return ret; 4380 } 4381 4382 /* warning : doesn't handle linux specific flags... */ 4383 static int target_to_host_fcntl_cmd(int cmd) 4384 { 4385 switch(cmd) { 4386 case TARGET_F_DUPFD: 4387 case TARGET_F_GETFD: 4388 case TARGET_F_SETFD: 4389 case TARGET_F_GETFL: 4390 case TARGET_F_SETFL: 4391 return cmd; 4392 case TARGET_F_GETLK: 4393 return F_GETLK; 4394 case TARGET_F_SETLK: 4395 return F_SETLK; 4396 case TARGET_F_SETLKW: 4397 return F_SETLKW; 4398 case TARGET_F_GETOWN: 4399 return F_GETOWN; 4400 case TARGET_F_SETOWN: 4401 return F_SETOWN; 4402 case TARGET_F_GETSIG: 4403 return F_GETSIG; 4404 case TARGET_F_SETSIG: 4405 return F_SETSIG; 4406 #if TARGET_ABI_BITS == 32 4407 case TARGET_F_GETLK64: 4408 return F_GETLK64; 4409 case TARGET_F_SETLK64: 4410 return F_SETLK64; 4411 case TARGET_F_SETLKW64: 4412 return F_SETLKW64; 4413 #endif 4414 case TARGET_F_SETLEASE: 4415 return F_SETLEASE; 4416 case TARGET_F_GETLEASE: 4417 return F_GETLEASE; 4418 #ifdef F_DUPFD_CLOEXEC 4419 case TARGET_F_DUPFD_CLOEXEC: 4420 return F_DUPFD_CLOEXEC; 4421 #endif 4422 case TARGET_F_NOTIFY: 4423 return F_NOTIFY; 4424 default: 4425 return -TARGET_EINVAL; 4426 } 4427 return -TARGET_EINVAL; 4428 } 4429 4430 #define TRANSTBL_CONVERT(a) { -1, TARGET_##a, -1, a } 4431 static const bitmask_transtbl flock_tbl[] = { 4432 TRANSTBL_CONVERT(F_RDLCK), 4433 TRANSTBL_CONVERT(F_WRLCK), 4434 TRANSTBL_CONVERT(F_UNLCK), 4435 TRANSTBL_CONVERT(F_EXLCK), 4436 TRANSTBL_CONVERT(F_SHLCK), 4437 { 0, 0, 0, 0 } 4438 }; 4439 4440 static abi_long do_fcntl(int fd, int cmd, abi_ulong arg) 4441 { 4442 struct flock fl; 4443 struct target_flock *target_fl; 4444 struct flock64 fl64; 4445 struct target_flock64 *target_fl64; 4446 abi_long ret; 4447 int host_cmd = target_to_host_fcntl_cmd(cmd); 4448 4449 if (host_cmd == -TARGET_EINVAL) 4450 return host_cmd; 4451 4452 switch(cmd) { 4453 case TARGET_F_GETLK: 4454 if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1)) 4455 return -TARGET_EFAULT; 4456 fl.l_type = 4457 target_to_host_bitmask(tswap16(target_fl->l_type), flock_tbl); 4458 fl.l_whence = tswap16(target_fl->l_whence); 4459 fl.l_start = tswapal(target_fl->l_start); 4460 fl.l_len = tswapal(target_fl->l_len); 4461 fl.l_pid = tswap32(target_fl->l_pid); 4462 unlock_user_struct(target_fl, arg, 0); 4463 ret = get_errno(fcntl(fd, host_cmd, &fl)); 4464 if (ret == 0) { 4465 if (!lock_user_struct(VERIFY_WRITE, target_fl, arg, 0)) 4466 return -TARGET_EFAULT; 4467 target_fl->l_type = 4468 host_to_target_bitmask(tswap16(fl.l_type), flock_tbl); 4469 target_fl->l_whence = tswap16(fl.l_whence); 4470 target_fl->l_start = tswapal(fl.l_start); 4471 target_fl->l_len = tswapal(fl.l_len); 4472 target_fl->l_pid = tswap32(fl.l_pid); 4473 unlock_user_struct(target_fl, arg, 1); 4474 } 4475 break; 4476 4477 case TARGET_F_SETLK: 4478 case TARGET_F_SETLKW: 4479 if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1)) 4480 return -TARGET_EFAULT; 4481 fl.l_type = 4482 target_to_host_bitmask(tswap16(target_fl->l_type), flock_tbl); 4483 fl.l_whence = tswap16(target_fl->l_whence); 4484 fl.l_start = tswapal(target_fl->l_start); 4485 fl.l_len = tswapal(target_fl->l_len); 4486 fl.l_pid = tswap32(target_fl->l_pid); 4487 unlock_user_struct(target_fl, arg, 0); 4488 ret = get_errno(fcntl(fd, host_cmd, &fl)); 4489 break; 4490 4491 case TARGET_F_GETLK64: 4492 if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1)) 4493 return -TARGET_EFAULT; 4494 fl64.l_type = 4495 target_to_host_bitmask(tswap16(target_fl64->l_type), flock_tbl) >> 1; 4496 fl64.l_whence = tswap16(target_fl64->l_whence); 4497 fl64.l_start = tswap64(target_fl64->l_start); 4498 fl64.l_len = tswap64(target_fl64->l_len); 4499 fl64.l_pid = tswap32(target_fl64->l_pid); 4500 unlock_user_struct(target_fl64, arg, 0); 4501 ret = get_errno(fcntl(fd, host_cmd, &fl64)); 4502 if (ret == 0) { 4503 if (!lock_user_struct(VERIFY_WRITE, target_fl64, arg, 0)) 4504 return -TARGET_EFAULT; 4505 target_fl64->l_type = 4506 host_to_target_bitmask(tswap16(fl64.l_type), flock_tbl) >> 1; 4507 target_fl64->l_whence = tswap16(fl64.l_whence); 4508 target_fl64->l_start = tswap64(fl64.l_start); 4509 target_fl64->l_len = tswap64(fl64.l_len); 4510 target_fl64->l_pid = tswap32(fl64.l_pid); 4511 unlock_user_struct(target_fl64, arg, 1); 4512 } 4513 break; 4514 case TARGET_F_SETLK64: 4515 case TARGET_F_SETLKW64: 4516 if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1)) 4517 return -TARGET_EFAULT; 4518 fl64.l_type = 4519 target_to_host_bitmask(tswap16(target_fl64->l_type), flock_tbl) >> 1; 4520 fl64.l_whence = tswap16(target_fl64->l_whence); 4521 fl64.l_start = tswap64(target_fl64->l_start); 4522 fl64.l_len = tswap64(target_fl64->l_len); 4523 fl64.l_pid = tswap32(target_fl64->l_pid); 4524 unlock_user_struct(target_fl64, arg, 0); 4525 ret = get_errno(fcntl(fd, host_cmd, &fl64)); 4526 break; 4527 4528 case TARGET_F_GETFL: 4529 ret = get_errno(fcntl(fd, host_cmd, arg)); 4530 if (ret >= 0) { 4531 ret = host_to_target_bitmask(ret, fcntl_flags_tbl); 4532 } 4533 break; 4534 4535 case TARGET_F_SETFL: 4536 ret = get_errno(fcntl(fd, host_cmd, target_to_host_bitmask(arg, fcntl_flags_tbl))); 4537 break; 4538 4539 case TARGET_F_SETOWN: 4540 case TARGET_F_GETOWN: 4541 case TARGET_F_SETSIG: 4542 case TARGET_F_GETSIG: 4543 case TARGET_F_SETLEASE: 4544 case TARGET_F_GETLEASE: 4545 ret = get_errno(fcntl(fd, host_cmd, arg)); 4546 break; 4547 4548 default: 4549 ret = get_errno(fcntl(fd, cmd, arg)); 4550 break; 4551 } 4552 return ret; 4553 } 4554 4555 #ifdef USE_UID16 4556 4557 static inline int high2lowuid(int uid) 4558 { 4559 if (uid > 65535) 4560 return 65534; 4561 else 4562 return uid; 4563 } 4564 4565 static inline int high2lowgid(int gid) 4566 { 4567 if (gid > 65535) 4568 return 65534; 4569 else 4570 return gid; 4571 } 4572 4573 static inline int low2highuid(int uid) 4574 { 4575 if ((int16_t)uid == -1) 4576 return -1; 4577 else 4578 return uid; 4579 } 4580 4581 static inline int low2highgid(int gid) 4582 { 4583 if ((int16_t)gid == -1) 4584 return -1; 4585 else 4586 return gid; 4587 } 4588 static inline int tswapid(int id) 4589 { 4590 return tswap16(id); 4591 } 4592 #else /* !USE_UID16 */ 4593 static inline int high2lowuid(int uid) 4594 { 4595 return uid; 4596 } 4597 static inline int high2lowgid(int gid) 4598 { 4599 return gid; 4600 } 4601 static inline int low2highuid(int uid) 4602 { 4603 return uid; 4604 } 4605 static inline int low2highgid(int gid) 4606 { 4607 return gid; 4608 } 4609 static inline int tswapid(int id) 4610 { 4611 return tswap32(id); 4612 } 4613 #endif /* USE_UID16 */ 4614 4615 void syscall_init(void) 4616 { 4617 IOCTLEntry *ie; 4618 const argtype *arg_type; 4619 int size; 4620 int i; 4621 4622 #define STRUCT(name, ...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def); 4623 #define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def); 4624 #include "syscall_types.h" 4625 #undef STRUCT 4626 #undef STRUCT_SPECIAL 4627 4628 /* Build target_to_host_errno_table[] table from 4629 * host_to_target_errno_table[]. */ 4630 for (i = 0; i < ERRNO_TABLE_SIZE; i++) { 4631 target_to_host_errno_table[host_to_target_errno_table[i]] = i; 4632 } 4633 4634 /* we patch the ioctl size if necessary. We rely on the fact that 4635 no ioctl has all the bits at '1' in the size field */ 4636 ie = ioctl_entries; 4637 while (ie->target_cmd != 0) { 4638 if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) == 4639 TARGET_IOC_SIZEMASK) { 4640 arg_type = ie->arg_type; 4641 if (arg_type[0] != TYPE_PTR) { 4642 fprintf(stderr, "cannot patch size for ioctl 0x%x\n", 4643 ie->target_cmd); 4644 exit(1); 4645 } 4646 arg_type++; 4647 size = thunk_type_size(arg_type, 0); 4648 ie->target_cmd = (ie->target_cmd & 4649 ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) | 4650 (size << TARGET_IOC_SIZESHIFT); 4651 } 4652 4653 /* automatic consistency check if same arch */ 4654 #if (defined(__i386__) && defined(TARGET_I386) && defined(TARGET_ABI32)) || \ 4655 (defined(__x86_64__) && defined(TARGET_X86_64)) 4656 if (unlikely(ie->target_cmd != ie->host_cmd)) { 4657 fprintf(stderr, "ERROR: ioctl(%s): target=0x%x host=0x%x\n", 4658 ie->name, ie->target_cmd, ie->host_cmd); 4659 } 4660 #endif 4661 ie++; 4662 } 4663 } 4664 4665 #if TARGET_ABI_BITS == 32 4666 static inline uint64_t target_offset64(uint32_t word0, uint32_t word1) 4667 { 4668 #ifdef TARGET_WORDS_BIGENDIAN 4669 return ((uint64_t)word0 << 32) | word1; 4670 #else 4671 return ((uint64_t)word1 << 32) | word0; 4672 #endif 4673 } 4674 #else /* TARGET_ABI_BITS == 32 */ 4675 static inline uint64_t target_offset64(uint64_t word0, uint64_t word1) 4676 { 4677 return word0; 4678 } 4679 #endif /* TARGET_ABI_BITS != 32 */ 4680 4681 #ifdef TARGET_NR_truncate64 4682 static inline abi_long target_truncate64(void *cpu_env, const char *arg1, 4683 abi_long arg2, 4684 abi_long arg3, 4685 abi_long arg4) 4686 { 4687 if (regpairs_aligned(cpu_env)) { 4688 arg2 = arg3; 4689 arg3 = arg4; 4690 } 4691 return get_errno(truncate64(arg1, target_offset64(arg2, arg3))); 4692 } 4693 #endif 4694 4695 #ifdef TARGET_NR_ftruncate64 4696 static inline abi_long target_ftruncate64(void *cpu_env, abi_long arg1, 4697 abi_long arg2, 4698 abi_long arg3, 4699 abi_long arg4) 4700 { 4701 if (regpairs_aligned(cpu_env)) { 4702 arg2 = arg3; 4703 arg3 = arg4; 4704 } 4705 return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3))); 4706 } 4707 #endif 4708 4709 static inline abi_long target_to_host_timespec(struct timespec *host_ts, 4710 abi_ulong target_addr) 4711 { 4712 struct target_timespec *target_ts; 4713 4714 if (!lock_user_struct(VERIFY_READ, target_ts, target_addr, 1)) 4715 return -TARGET_EFAULT; 4716 host_ts->tv_sec = tswapal(target_ts->tv_sec); 4717 host_ts->tv_nsec = tswapal(target_ts->tv_nsec); 4718 unlock_user_struct(target_ts, target_addr, 0); 4719 return 0; 4720 } 4721 4722 static inline abi_long host_to_target_timespec(abi_ulong target_addr, 4723 struct timespec *host_ts) 4724 { 4725 struct target_timespec *target_ts; 4726 4727 if (!lock_user_struct(VERIFY_WRITE, target_ts, target_addr, 0)) 4728 return -TARGET_EFAULT; 4729 target_ts->tv_sec = tswapal(host_ts->tv_sec); 4730 target_ts->tv_nsec = tswapal(host_ts->tv_nsec); 4731 unlock_user_struct(target_ts, target_addr, 1); 4732 return 0; 4733 } 4734 4735 #if defined(TARGET_NR_stat64) || defined(TARGET_NR_newfstatat) 4736 static inline abi_long host_to_target_stat64(void *cpu_env, 4737 abi_ulong target_addr, 4738 struct stat *host_st) 4739 { 4740 #ifdef TARGET_ARM 4741 if (((CPUARMState *)cpu_env)->eabi) { 4742 struct target_eabi_stat64 *target_st; 4743 4744 if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0)) 4745 return -TARGET_EFAULT; 4746 memset(target_st, 0, sizeof(struct target_eabi_stat64)); 4747 __put_user(host_st->st_dev, &target_st->st_dev); 4748 __put_user(host_st->st_ino, &target_st->st_ino); 4749 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO 4750 __put_user(host_st->st_ino, &target_st->__st_ino); 4751 #endif 4752 __put_user(host_st->st_mode, &target_st->st_mode); 4753 __put_user(host_st->st_nlink, &target_st->st_nlink); 4754 __put_user(host_st->st_uid, &target_st->st_uid); 4755 __put_user(host_st->st_gid, &target_st->st_gid); 4756 __put_user(host_st->st_rdev, &target_st->st_rdev); 4757 __put_user(host_st->st_size, &target_st->st_size); 4758 __put_user(host_st->st_blksize, &target_st->st_blksize); 4759 __put_user(host_st->st_blocks, &target_st->st_blocks); 4760 __put_user(host_st->st_atime, &target_st->target_st_atime); 4761 __put_user(host_st->st_mtime, &target_st->target_st_mtime); 4762 __put_user(host_st->st_ctime, &target_st->target_st_ctime); 4763 unlock_user_struct(target_st, target_addr, 1); 4764 } else 4765 #endif 4766 { 4767 #if TARGET_ABI_BITS == 64 && !defined(TARGET_ALPHA) 4768 struct target_stat *target_st; 4769 #else 4770 struct target_stat64 *target_st; 4771 #endif 4772 4773 if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0)) 4774 return -TARGET_EFAULT; 4775 memset(target_st, 0, sizeof(*target_st)); 4776 __put_user(host_st->st_dev, &target_st->st_dev); 4777 __put_user(host_st->st_ino, &target_st->st_ino); 4778 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO 4779 __put_user(host_st->st_ino, &target_st->__st_ino); 4780 #endif 4781 __put_user(host_st->st_mode, &target_st->st_mode); 4782 __put_user(host_st->st_nlink, &target_st->st_nlink); 4783 __put_user(host_st->st_uid, &target_st->st_uid); 4784 __put_user(host_st->st_gid, &target_st->st_gid); 4785 __put_user(host_st->st_rdev, &target_st->st_rdev); 4786 /* XXX: better use of kernel struct */ 4787 __put_user(host_st->st_size, &target_st->st_size); 4788 __put_user(host_st->st_blksize, &target_st->st_blksize); 4789 __put_user(host_st->st_blocks, &target_st->st_blocks); 4790 __put_user(host_st->st_atime, &target_st->target_st_atime); 4791 __put_user(host_st->st_mtime, &target_st->target_st_mtime); 4792 __put_user(host_st->st_ctime, &target_st->target_st_ctime); 4793 unlock_user_struct(target_st, target_addr, 1); 4794 } 4795 4796 return 0; 4797 } 4798 #endif 4799 4800 /* ??? Using host futex calls even when target atomic operations 4801 are not really atomic probably breaks things. However implementing 4802 futexes locally would make futexes shared between multiple processes 4803 tricky. However they're probably useless because guest atomic 4804 operations won't work either. */ 4805 static int do_futex(target_ulong uaddr, int op, int val, target_ulong timeout, 4806 target_ulong uaddr2, int val3) 4807 { 4808 struct timespec ts, *pts; 4809 int base_op; 4810 4811 /* ??? We assume FUTEX_* constants are the same on both host 4812 and target. */ 4813 #ifdef FUTEX_CMD_MASK 4814 base_op = op & FUTEX_CMD_MASK; 4815 #else 4816 base_op = op; 4817 #endif 4818 switch (base_op) { 4819 case FUTEX_WAIT: 4820 case FUTEX_WAIT_BITSET: 4821 if (timeout) { 4822 pts = &ts; 4823 target_to_host_timespec(pts, timeout); 4824 } else { 4825 pts = NULL; 4826 } 4827 return get_errno(sys_futex(g2h(uaddr), op, tswap32(val), 4828 pts, NULL, val3)); 4829 case FUTEX_WAKE: 4830 return get_errno(sys_futex(g2h(uaddr), op, val, NULL, NULL, 0)); 4831 case FUTEX_FD: 4832 return get_errno(sys_futex(g2h(uaddr), op, val, NULL, NULL, 0)); 4833 case FUTEX_REQUEUE: 4834 case FUTEX_CMP_REQUEUE: 4835 case FUTEX_WAKE_OP: 4836 /* For FUTEX_REQUEUE, FUTEX_CMP_REQUEUE, and FUTEX_WAKE_OP, the 4837 TIMEOUT parameter is interpreted as a uint32_t by the kernel. 4838 But the prototype takes a `struct timespec *'; insert casts 4839 to satisfy the compiler. We do not need to tswap TIMEOUT 4840 since it's not compared to guest memory. */ 4841 pts = (struct timespec *)(uintptr_t) timeout; 4842 return get_errno(sys_futex(g2h(uaddr), op, val, pts, 4843 g2h(uaddr2), 4844 (base_op == FUTEX_CMP_REQUEUE 4845 ? tswap32(val3) 4846 : val3))); 4847 default: 4848 return -TARGET_ENOSYS; 4849 } 4850 } 4851 4852 /* Map host to target signal numbers for the wait family of syscalls. 4853 Assume all other status bits are the same. */ 4854 int host_to_target_waitstatus(int status) 4855 { 4856 if (WIFSIGNALED(status)) { 4857 return host_to_target_signal(WTERMSIG(status)) | (status & ~0x7f); 4858 } 4859 if (WIFSTOPPED(status)) { 4860 return (host_to_target_signal(WSTOPSIG(status)) << 8) 4861 | (status & 0xff); 4862 } 4863 return status; 4864 } 4865 4866 int get_osversion(void) 4867 { 4868 static int osversion; 4869 struct new_utsname buf; 4870 const char *s; 4871 int i, n, tmp; 4872 if (osversion) 4873 return osversion; 4874 if (qemu_uname_release && *qemu_uname_release) { 4875 s = qemu_uname_release; 4876 } else { 4877 if (sys_uname(&buf)) 4878 return 0; 4879 s = buf.release; 4880 } 4881 tmp = 0; 4882 for (i = 0; i < 3; i++) { 4883 n = 0; 4884 while (*s >= '0' && *s <= '9') { 4885 n *= 10; 4886 n += *s - '0'; 4887 s++; 4888 } 4889 tmp = (tmp << 8) + n; 4890 if (*s == '.') 4891 s++; 4892 } 4893 osversion = tmp; 4894 return osversion; 4895 } 4896 4897 4898 static int open_self_maps(void *cpu_env, int fd) 4899 { 4900 #if defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_UNICORE32) 4901 TaskState *ts = ((CPUArchState *)cpu_env)->opaque; 4902 #endif 4903 FILE *fp; 4904 char *line = NULL; 4905 size_t len = 0; 4906 ssize_t read; 4907 4908 fp = fopen("/proc/self/maps", "r"); 4909 if (fp == NULL) { 4910 return -EACCES; 4911 } 4912 4913 while ((read = getline(&line, &len, fp)) != -1) { 4914 int fields, dev_maj, dev_min, inode; 4915 uint64_t min, max, offset; 4916 char flag_r, flag_w, flag_x, flag_p; 4917 char path[512] = ""; 4918 fields = sscanf(line, "%"PRIx64"-%"PRIx64" %c%c%c%c %"PRIx64" %x:%x %d" 4919 " %512s", &min, &max, &flag_r, &flag_w, &flag_x, 4920 &flag_p, &offset, &dev_maj, &dev_min, &inode, path); 4921 4922 if ((fields < 10) || (fields > 11)) { 4923 continue; 4924 } 4925 if (!strncmp(path, "[stack]", 7)) { 4926 continue; 4927 } 4928 if (h2g_valid(min) && h2g_valid(max)) { 4929 dprintf(fd, TARGET_ABI_FMT_lx "-" TARGET_ABI_FMT_lx 4930 " %c%c%c%c %08" PRIx64 " %02x:%02x %d %s%s\n", 4931 h2g(min), h2g(max), flag_r, flag_w, 4932 flag_x, flag_p, offset, dev_maj, dev_min, inode, 4933 path[0] ? " " : "", path); 4934 } 4935 } 4936 4937 free(line); 4938 fclose(fp); 4939 4940 #if defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_UNICORE32) 4941 dprintf(fd, "%08llx-%08llx rw-p %08llx 00:00 0 [stack]\n", 4942 (unsigned long long)ts->info->stack_limit, 4943 (unsigned long long)(ts->info->start_stack + 4944 (TARGET_PAGE_SIZE - 1)) & TARGET_PAGE_MASK, 4945 (unsigned long long)0); 4946 #endif 4947 4948 return 0; 4949 } 4950 4951 static int open_self_stat(void *cpu_env, int fd) 4952 { 4953 TaskState *ts = ((CPUArchState *)cpu_env)->opaque; 4954 abi_ulong start_stack = ts->info->start_stack; 4955 int i; 4956 4957 for (i = 0; i < 44; i++) { 4958 char buf[128]; 4959 int len; 4960 uint64_t val = 0; 4961 4962 if (i == 0) { 4963 /* pid */ 4964 val = getpid(); 4965 snprintf(buf, sizeof(buf), "%"PRId64 " ", val); 4966 } else if (i == 1) { 4967 /* app name */ 4968 snprintf(buf, sizeof(buf), "(%s) ", ts->bprm->argv[0]); 4969 } else if (i == 27) { 4970 /* stack bottom */ 4971 val = start_stack; 4972 snprintf(buf, sizeof(buf), "%"PRId64 " ", val); 4973 } else { 4974 /* for the rest, there is MasterCard */ 4975 snprintf(buf, sizeof(buf), "0%c", i == 43 ? '\n' : ' '); 4976 } 4977 4978 len = strlen(buf); 4979 if (write(fd, buf, len) != len) { 4980 return -1; 4981 } 4982 } 4983 4984 return 0; 4985 } 4986 4987 static int open_self_auxv(void *cpu_env, int fd) 4988 { 4989 TaskState *ts = ((CPUArchState *)cpu_env)->opaque; 4990 abi_ulong auxv = ts->info->saved_auxv; 4991 abi_ulong len = ts->info->auxv_len; 4992 char *ptr; 4993 4994 /* 4995 * Auxiliary vector is stored in target process stack. 4996 * read in whole auxv vector and copy it to file 4997 */ 4998 ptr = lock_user(VERIFY_READ, auxv, len, 0); 4999 if (ptr != NULL) { 5000 while (len > 0) { 5001 ssize_t r; 5002 r = write(fd, ptr, len); 5003 if (r <= 0) { 5004 break; 5005 } 5006 len -= r; 5007 ptr += r; 5008 } 5009 lseek(fd, 0, SEEK_SET); 5010 unlock_user(ptr, auxv, len); 5011 } 5012 5013 return 0; 5014 } 5015 5016 static int is_proc_myself(const char *filename, const char *entry) 5017 { 5018 if (!strncmp(filename, "/proc/", strlen("/proc/"))) { 5019 filename += strlen("/proc/"); 5020 if (!strncmp(filename, "self/", strlen("self/"))) { 5021 filename += strlen("self/"); 5022 } else if (*filename >= '1' && *filename <= '9') { 5023 char myself[80]; 5024 snprintf(myself, sizeof(myself), "%d/", getpid()); 5025 if (!strncmp(filename, myself, strlen(myself))) { 5026 filename += strlen(myself); 5027 } else { 5028 return 0; 5029 } 5030 } else { 5031 return 0; 5032 } 5033 if (!strcmp(filename, entry)) { 5034 return 1; 5035 } 5036 } 5037 return 0; 5038 } 5039 5040 static int do_open(void *cpu_env, const char *pathname, int flags, mode_t mode) 5041 { 5042 struct fake_open { 5043 const char *filename; 5044 int (*fill)(void *cpu_env, int fd); 5045 }; 5046 const struct fake_open *fake_open; 5047 static const struct fake_open fakes[] = { 5048 { "maps", open_self_maps }, 5049 { "stat", open_self_stat }, 5050 { "auxv", open_self_auxv }, 5051 { NULL, NULL } 5052 }; 5053 5054 for (fake_open = fakes; fake_open->filename; fake_open++) { 5055 if (is_proc_myself(pathname, fake_open->filename)) { 5056 break; 5057 } 5058 } 5059 5060 if (fake_open->filename) { 5061 const char *tmpdir; 5062 char filename[PATH_MAX]; 5063 int fd, r; 5064 5065 /* create temporary file to map stat to */ 5066 tmpdir = getenv("TMPDIR"); 5067 if (!tmpdir) 5068 tmpdir = "/tmp"; 5069 snprintf(filename, sizeof(filename), "%s/qemu-open.XXXXXX", tmpdir); 5070 fd = mkstemp(filename); 5071 if (fd < 0) { 5072 return fd; 5073 } 5074 unlink(filename); 5075 5076 if ((r = fake_open->fill(cpu_env, fd))) { 5077 close(fd); 5078 return r; 5079 } 5080 lseek(fd, 0, SEEK_SET); 5081 5082 return fd; 5083 } 5084 5085 return get_errno(open(path(pathname), flags, mode)); 5086 } 5087 5088 /* do_syscall() should always have a single exit point at the end so 5089 that actions, such as logging of syscall results, can be performed. 5090 All errnos that do_syscall() returns must be -TARGET_<errcode>. */ 5091 abi_long do_syscall(void *cpu_env, int num, abi_long arg1, 5092 abi_long arg2, abi_long arg3, abi_long arg4, 5093 abi_long arg5, abi_long arg6, abi_long arg7, 5094 abi_long arg8) 5095 { 5096 CPUState *cpu = ENV_GET_CPU(cpu_env); 5097 abi_long ret; 5098 struct stat st; 5099 struct statfs stfs; 5100 void *p; 5101 5102 #ifdef DEBUG 5103 gemu_log("syscall %d", num); 5104 #endif 5105 if(do_strace) 5106 print_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6); 5107 5108 switch(num) { 5109 case TARGET_NR_exit: 5110 /* In old applications this may be used to implement _exit(2). 5111 However in threaded applictions it is used for thread termination, 5112 and _exit_group is used for application termination. 5113 Do thread termination if we have more then one thread. */ 5114 /* FIXME: This probably breaks if a signal arrives. We should probably 5115 be disabling signals. */ 5116 if (first_cpu->next_cpu) { 5117 TaskState *ts; 5118 CPUState **lastp; 5119 CPUState *p; 5120 5121 cpu_list_lock(); 5122 lastp = &first_cpu; 5123 p = first_cpu; 5124 while (p && p != cpu) { 5125 lastp = &p->next_cpu; 5126 p = p->next_cpu; 5127 } 5128 /* If we didn't find the CPU for this thread then something is 5129 horribly wrong. */ 5130 if (!p) { 5131 abort(); 5132 } 5133 /* Remove the CPU from the list. */ 5134 *lastp = p->next_cpu; 5135 cpu_list_unlock(); 5136 ts = ((CPUArchState *)cpu_env)->opaque; 5137 if (ts->child_tidptr) { 5138 put_user_u32(0, ts->child_tidptr); 5139 sys_futex(g2h(ts->child_tidptr), FUTEX_WAKE, INT_MAX, 5140 NULL, NULL, 0); 5141 } 5142 thread_cpu = NULL; 5143 object_unref(OBJECT(ENV_GET_CPU(cpu_env))); 5144 g_free(ts); 5145 pthread_exit(NULL); 5146 } 5147 #ifdef TARGET_GPROF 5148 _mcleanup(); 5149 #endif 5150 gdb_exit(cpu_env, arg1); 5151 _exit(arg1); 5152 ret = 0; /* avoid warning */ 5153 break; 5154 case TARGET_NR_read: 5155 if (arg3 == 0) 5156 ret = 0; 5157 else { 5158 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0))) 5159 goto efault; 5160 ret = get_errno(read(arg1, p, arg3)); 5161 unlock_user(p, arg2, ret); 5162 } 5163 break; 5164 case TARGET_NR_write: 5165 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1))) 5166 goto efault; 5167 ret = get_errno(write(arg1, p, arg3)); 5168 unlock_user(p, arg2, 0); 5169 break; 5170 case TARGET_NR_open: 5171 if (!(p = lock_user_string(arg1))) 5172 goto efault; 5173 ret = get_errno(do_open(cpu_env, p, 5174 target_to_host_bitmask(arg2, fcntl_flags_tbl), 5175 arg3)); 5176 unlock_user(p, arg1, 0); 5177 break; 5178 #if defined(TARGET_NR_openat) && defined(__NR_openat) 5179 case TARGET_NR_openat: 5180 if (!(p = lock_user_string(arg2))) 5181 goto efault; 5182 ret = get_errno(sys_openat(arg1, 5183 path(p), 5184 target_to_host_bitmask(arg3, fcntl_flags_tbl), 5185 arg4)); 5186 unlock_user(p, arg2, 0); 5187 break; 5188 #endif 5189 case TARGET_NR_close: 5190 ret = get_errno(close(arg1)); 5191 break; 5192 case TARGET_NR_brk: 5193 ret = do_brk(arg1); 5194 break; 5195 case TARGET_NR_fork: 5196 ret = get_errno(do_fork(cpu_env, SIGCHLD, 0, 0, 0, 0)); 5197 break; 5198 #ifdef TARGET_NR_waitpid 5199 case TARGET_NR_waitpid: 5200 { 5201 int status; 5202 ret = get_errno(waitpid(arg1, &status, arg3)); 5203 if (!is_error(ret) && arg2 && ret 5204 && put_user_s32(host_to_target_waitstatus(status), arg2)) 5205 goto efault; 5206 } 5207 break; 5208 #endif 5209 #ifdef TARGET_NR_waitid 5210 case TARGET_NR_waitid: 5211 { 5212 siginfo_t info; 5213 info.si_pid = 0; 5214 ret = get_errno(waitid(arg1, arg2, &info, arg4)); 5215 if (!is_error(ret) && arg3 && info.si_pid != 0) { 5216 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_siginfo_t), 0))) 5217 goto efault; 5218 host_to_target_siginfo(p, &info); 5219 unlock_user(p, arg3, sizeof(target_siginfo_t)); 5220 } 5221 } 5222 break; 5223 #endif 5224 #ifdef TARGET_NR_creat /* not on alpha */ 5225 case TARGET_NR_creat: 5226 if (!(p = lock_user_string(arg1))) 5227 goto efault; 5228 ret = get_errno(creat(p, arg2)); 5229 unlock_user(p, arg1, 0); 5230 break; 5231 #endif 5232 case TARGET_NR_link: 5233 { 5234 void * p2; 5235 p = lock_user_string(arg1); 5236 p2 = lock_user_string(arg2); 5237 if (!p || !p2) 5238 ret = -TARGET_EFAULT; 5239 else 5240 ret = get_errno(link(p, p2)); 5241 unlock_user(p2, arg2, 0); 5242 unlock_user(p, arg1, 0); 5243 } 5244 break; 5245 #if defined(TARGET_NR_linkat) 5246 case TARGET_NR_linkat: 5247 { 5248 void * p2 = NULL; 5249 if (!arg2 || !arg4) 5250 goto efault; 5251 p = lock_user_string(arg2); 5252 p2 = lock_user_string(arg4); 5253 if (!p || !p2) 5254 ret = -TARGET_EFAULT; 5255 else 5256 ret = get_errno(linkat(arg1, p, arg3, p2, arg5)); 5257 unlock_user(p, arg2, 0); 5258 unlock_user(p2, arg4, 0); 5259 } 5260 break; 5261 #endif 5262 case TARGET_NR_unlink: 5263 if (!(p = lock_user_string(arg1))) 5264 goto efault; 5265 ret = get_errno(unlink(p)); 5266 unlock_user(p, arg1, 0); 5267 break; 5268 #if defined(TARGET_NR_unlinkat) 5269 case TARGET_NR_unlinkat: 5270 if (!(p = lock_user_string(arg2))) 5271 goto efault; 5272 ret = get_errno(unlinkat(arg1, p, arg3)); 5273 unlock_user(p, arg2, 0); 5274 break; 5275 #endif 5276 case TARGET_NR_execve: 5277 { 5278 char **argp, **envp; 5279 int argc, envc; 5280 abi_ulong gp; 5281 abi_ulong guest_argp; 5282 abi_ulong guest_envp; 5283 abi_ulong addr; 5284 char **q; 5285 int total_size = 0; 5286 5287 argc = 0; 5288 guest_argp = arg2; 5289 for (gp = guest_argp; gp; gp += sizeof(abi_ulong)) { 5290 if (get_user_ual(addr, gp)) 5291 goto efault; 5292 if (!addr) 5293 break; 5294 argc++; 5295 } 5296 envc = 0; 5297 guest_envp = arg3; 5298 for (gp = guest_envp; gp; gp += sizeof(abi_ulong)) { 5299 if (get_user_ual(addr, gp)) 5300 goto efault; 5301 if (!addr) 5302 break; 5303 envc++; 5304 } 5305 5306 argp = alloca((argc + 1) * sizeof(void *)); 5307 envp = alloca((envc + 1) * sizeof(void *)); 5308 5309 for (gp = guest_argp, q = argp; gp; 5310 gp += sizeof(abi_ulong), q++) { 5311 if (get_user_ual(addr, gp)) 5312 goto execve_efault; 5313 if (!addr) 5314 break; 5315 if (!(*q = lock_user_string(addr))) 5316 goto execve_efault; 5317 total_size += strlen(*q) + 1; 5318 } 5319 *q = NULL; 5320 5321 for (gp = guest_envp, q = envp; gp; 5322 gp += sizeof(abi_ulong), q++) { 5323 if (get_user_ual(addr, gp)) 5324 goto execve_efault; 5325 if (!addr) 5326 break; 5327 if (!(*q = lock_user_string(addr))) 5328 goto execve_efault; 5329 total_size += strlen(*q) + 1; 5330 } 5331 *q = NULL; 5332 5333 /* This case will not be caught by the host's execve() if its 5334 page size is bigger than the target's. */ 5335 if (total_size > MAX_ARG_PAGES * TARGET_PAGE_SIZE) { 5336 ret = -TARGET_E2BIG; 5337 goto execve_end; 5338 } 5339 if (!(p = lock_user_string(arg1))) 5340 goto execve_efault; 5341 ret = get_errno(execve(p, argp, envp)); 5342 unlock_user(p, arg1, 0); 5343 5344 goto execve_end; 5345 5346 execve_efault: 5347 ret = -TARGET_EFAULT; 5348 5349 execve_end: 5350 for (gp = guest_argp, q = argp; *q; 5351 gp += sizeof(abi_ulong), q++) { 5352 if (get_user_ual(addr, gp) 5353 || !addr) 5354 break; 5355 unlock_user(*q, addr, 0); 5356 } 5357 for (gp = guest_envp, q = envp; *q; 5358 gp += sizeof(abi_ulong), q++) { 5359 if (get_user_ual(addr, gp) 5360 || !addr) 5361 break; 5362 unlock_user(*q, addr, 0); 5363 } 5364 } 5365 break; 5366 case TARGET_NR_chdir: 5367 if (!(p = lock_user_string(arg1))) 5368 goto efault; 5369 ret = get_errno(chdir(p)); 5370 unlock_user(p, arg1, 0); 5371 break; 5372 #ifdef TARGET_NR_time 5373 case TARGET_NR_time: 5374 { 5375 time_t host_time; 5376 ret = get_errno(time(&host_time)); 5377 if (!is_error(ret) 5378 && arg1 5379 && put_user_sal(host_time, arg1)) 5380 goto efault; 5381 } 5382 break; 5383 #endif 5384 case TARGET_NR_mknod: 5385 if (!(p = lock_user_string(arg1))) 5386 goto efault; 5387 ret = get_errno(mknod(p, arg2, arg3)); 5388 unlock_user(p, arg1, 0); 5389 break; 5390 #if defined(TARGET_NR_mknodat) 5391 case TARGET_NR_mknodat: 5392 if (!(p = lock_user_string(arg2))) 5393 goto efault; 5394 ret = get_errno(mknodat(arg1, p, arg3, arg4)); 5395 unlock_user(p, arg2, 0); 5396 break; 5397 #endif 5398 case TARGET_NR_chmod: 5399 if (!(p = lock_user_string(arg1))) 5400 goto efault; 5401 ret = get_errno(chmod(p, arg2)); 5402 unlock_user(p, arg1, 0); 5403 break; 5404 #ifdef TARGET_NR_break 5405 case TARGET_NR_break: 5406 goto unimplemented; 5407 #endif 5408 #ifdef TARGET_NR_oldstat 5409 case TARGET_NR_oldstat: 5410 goto unimplemented; 5411 #endif 5412 case TARGET_NR_lseek: 5413 ret = get_errno(lseek(arg1, arg2, arg3)); 5414 break; 5415 #if defined(TARGET_NR_getxpid) && defined(TARGET_ALPHA) 5416 /* Alpha specific */ 5417 case TARGET_NR_getxpid: 5418 ((CPUAlphaState *)cpu_env)->ir[IR_A4] = getppid(); 5419 ret = get_errno(getpid()); 5420 break; 5421 #endif 5422 #ifdef TARGET_NR_getpid 5423 case TARGET_NR_getpid: 5424 ret = get_errno(getpid()); 5425 break; 5426 #endif 5427 case TARGET_NR_mount: 5428 { 5429 /* need to look at the data field */ 5430 void *p2, *p3; 5431 p = lock_user_string(arg1); 5432 p2 = lock_user_string(arg2); 5433 p3 = lock_user_string(arg3); 5434 if (!p || !p2 || !p3) 5435 ret = -TARGET_EFAULT; 5436 else { 5437 /* FIXME - arg5 should be locked, but it isn't clear how to 5438 * do that since it's not guaranteed to be a NULL-terminated 5439 * string. 5440 */ 5441 if ( ! arg5 ) 5442 ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, NULL)); 5443 else 5444 ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, g2h(arg5))); 5445 } 5446 unlock_user(p, arg1, 0); 5447 unlock_user(p2, arg2, 0); 5448 unlock_user(p3, arg3, 0); 5449 break; 5450 } 5451 #ifdef TARGET_NR_umount 5452 case TARGET_NR_umount: 5453 if (!(p = lock_user_string(arg1))) 5454 goto efault; 5455 ret = get_errno(umount(p)); 5456 unlock_user(p, arg1, 0); 5457 break; 5458 #endif 5459 #ifdef TARGET_NR_stime /* not on alpha */ 5460 case TARGET_NR_stime: 5461 { 5462 time_t host_time; 5463 if (get_user_sal(host_time, arg1)) 5464 goto efault; 5465 ret = get_errno(stime(&host_time)); 5466 } 5467 break; 5468 #endif 5469 case TARGET_NR_ptrace: 5470 goto unimplemented; 5471 #ifdef TARGET_NR_alarm /* not on alpha */ 5472 case TARGET_NR_alarm: 5473 ret = alarm(arg1); 5474 break; 5475 #endif 5476 #ifdef TARGET_NR_oldfstat 5477 case TARGET_NR_oldfstat: 5478 goto unimplemented; 5479 #endif 5480 #ifdef TARGET_NR_pause /* not on alpha */ 5481 case TARGET_NR_pause: 5482 ret = get_errno(pause()); 5483 break; 5484 #endif 5485 #ifdef TARGET_NR_utime 5486 case TARGET_NR_utime: 5487 { 5488 struct utimbuf tbuf, *host_tbuf; 5489 struct target_utimbuf *target_tbuf; 5490 if (arg2) { 5491 if (!lock_user_struct(VERIFY_READ, target_tbuf, arg2, 1)) 5492 goto efault; 5493 tbuf.actime = tswapal(target_tbuf->actime); 5494 tbuf.modtime = tswapal(target_tbuf->modtime); 5495 unlock_user_struct(target_tbuf, arg2, 0); 5496 host_tbuf = &tbuf; 5497 } else { 5498 host_tbuf = NULL; 5499 } 5500 if (!(p = lock_user_string(arg1))) 5501 goto efault; 5502 ret = get_errno(utime(p, host_tbuf)); 5503 unlock_user(p, arg1, 0); 5504 } 5505 break; 5506 #endif 5507 case TARGET_NR_utimes: 5508 { 5509 struct timeval *tvp, tv[2]; 5510 if (arg2) { 5511 if (copy_from_user_timeval(&tv[0], arg2) 5512 || copy_from_user_timeval(&tv[1], 5513 arg2 + sizeof(struct target_timeval))) 5514 goto efault; 5515 tvp = tv; 5516 } else { 5517 tvp = NULL; 5518 } 5519 if (!(p = lock_user_string(arg1))) 5520 goto efault; 5521 ret = get_errno(utimes(p, tvp)); 5522 unlock_user(p, arg1, 0); 5523 } 5524 break; 5525 #if defined(TARGET_NR_futimesat) 5526 case TARGET_NR_futimesat: 5527 { 5528 struct timeval *tvp, tv[2]; 5529 if (arg3) { 5530 if (copy_from_user_timeval(&tv[0], arg3) 5531 || copy_from_user_timeval(&tv[1], 5532 arg3 + sizeof(struct target_timeval))) 5533 goto efault; 5534 tvp = tv; 5535 } else { 5536 tvp = NULL; 5537 } 5538 if (!(p = lock_user_string(arg2))) 5539 goto efault; 5540 ret = get_errno(futimesat(arg1, path(p), tvp)); 5541 unlock_user(p, arg2, 0); 5542 } 5543 break; 5544 #endif 5545 #ifdef TARGET_NR_stty 5546 case TARGET_NR_stty: 5547 goto unimplemented; 5548 #endif 5549 #ifdef TARGET_NR_gtty 5550 case TARGET_NR_gtty: 5551 goto unimplemented; 5552 #endif 5553 case TARGET_NR_access: 5554 if (!(p = lock_user_string(arg1))) 5555 goto efault; 5556 ret = get_errno(access(path(p), arg2)); 5557 unlock_user(p, arg1, 0); 5558 break; 5559 #if defined(TARGET_NR_faccessat) && defined(__NR_faccessat) 5560 case TARGET_NR_faccessat: 5561 if (!(p = lock_user_string(arg2))) 5562 goto efault; 5563 ret = get_errno(faccessat(arg1, p, arg3, 0)); 5564 unlock_user(p, arg2, 0); 5565 break; 5566 #endif 5567 #ifdef TARGET_NR_nice /* not on alpha */ 5568 case TARGET_NR_nice: 5569 ret = get_errno(nice(arg1)); 5570 break; 5571 #endif 5572 #ifdef TARGET_NR_ftime 5573 case TARGET_NR_ftime: 5574 goto unimplemented; 5575 #endif 5576 case TARGET_NR_sync: 5577 sync(); 5578 ret = 0; 5579 break; 5580 case TARGET_NR_kill: 5581 ret = get_errno(kill(arg1, target_to_host_signal(arg2))); 5582 break; 5583 case TARGET_NR_rename: 5584 { 5585 void *p2; 5586 p = lock_user_string(arg1); 5587 p2 = lock_user_string(arg2); 5588 if (!p || !p2) 5589 ret = -TARGET_EFAULT; 5590 else 5591 ret = get_errno(rename(p, p2)); 5592 unlock_user(p2, arg2, 0); 5593 unlock_user(p, arg1, 0); 5594 } 5595 break; 5596 #if defined(TARGET_NR_renameat) 5597 case TARGET_NR_renameat: 5598 { 5599 void *p2; 5600 p = lock_user_string(arg2); 5601 p2 = lock_user_string(arg4); 5602 if (!p || !p2) 5603 ret = -TARGET_EFAULT; 5604 else 5605 ret = get_errno(renameat(arg1, p, arg3, p2)); 5606 unlock_user(p2, arg4, 0); 5607 unlock_user(p, arg2, 0); 5608 } 5609 break; 5610 #endif 5611 case TARGET_NR_mkdir: 5612 if (!(p = lock_user_string(arg1))) 5613 goto efault; 5614 ret = get_errno(mkdir(p, arg2)); 5615 unlock_user(p, arg1, 0); 5616 break; 5617 #if defined(TARGET_NR_mkdirat) 5618 case TARGET_NR_mkdirat: 5619 if (!(p = lock_user_string(arg2))) 5620 goto efault; 5621 ret = get_errno(mkdirat(arg1, p, arg3)); 5622 unlock_user(p, arg2, 0); 5623 break; 5624 #endif 5625 case TARGET_NR_rmdir: 5626 if (!(p = lock_user_string(arg1))) 5627 goto efault; 5628 ret = get_errno(rmdir(p)); 5629 unlock_user(p, arg1, 0); 5630 break; 5631 case TARGET_NR_dup: 5632 ret = get_errno(dup(arg1)); 5633 break; 5634 case TARGET_NR_pipe: 5635 ret = do_pipe(cpu_env, arg1, 0, 0); 5636 break; 5637 #ifdef TARGET_NR_pipe2 5638 case TARGET_NR_pipe2: 5639 ret = do_pipe(cpu_env, arg1, 5640 target_to_host_bitmask(arg2, fcntl_flags_tbl), 1); 5641 break; 5642 #endif 5643 case TARGET_NR_times: 5644 { 5645 struct target_tms *tmsp; 5646 struct tms tms; 5647 ret = get_errno(times(&tms)); 5648 if (arg1) { 5649 tmsp = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_tms), 0); 5650 if (!tmsp) 5651 goto efault; 5652 tmsp->tms_utime = tswapal(host_to_target_clock_t(tms.tms_utime)); 5653 tmsp->tms_stime = tswapal(host_to_target_clock_t(tms.tms_stime)); 5654 tmsp->tms_cutime = tswapal(host_to_target_clock_t(tms.tms_cutime)); 5655 tmsp->tms_cstime = tswapal(host_to_target_clock_t(tms.tms_cstime)); 5656 } 5657 if (!is_error(ret)) 5658 ret = host_to_target_clock_t(ret); 5659 } 5660 break; 5661 #ifdef TARGET_NR_prof 5662 case TARGET_NR_prof: 5663 goto unimplemented; 5664 #endif 5665 #ifdef TARGET_NR_signal 5666 case TARGET_NR_signal: 5667 goto unimplemented; 5668 #endif 5669 case TARGET_NR_acct: 5670 if (arg1 == 0) { 5671 ret = get_errno(acct(NULL)); 5672 } else { 5673 if (!(p = lock_user_string(arg1))) 5674 goto efault; 5675 ret = get_errno(acct(path(p))); 5676 unlock_user(p, arg1, 0); 5677 } 5678 break; 5679 #ifdef TARGET_NR_umount2 /* not on alpha */ 5680 case TARGET_NR_umount2: 5681 if (!(p = lock_user_string(arg1))) 5682 goto efault; 5683 ret = get_errno(umount2(p, arg2)); 5684 unlock_user(p, arg1, 0); 5685 break; 5686 #endif 5687 #ifdef TARGET_NR_lock 5688 case TARGET_NR_lock: 5689 goto unimplemented; 5690 #endif 5691 case TARGET_NR_ioctl: 5692 ret = do_ioctl(arg1, arg2, arg3); 5693 break; 5694 case TARGET_NR_fcntl: 5695 ret = do_fcntl(arg1, arg2, arg3); 5696 break; 5697 #ifdef TARGET_NR_mpx 5698 case TARGET_NR_mpx: 5699 goto unimplemented; 5700 #endif 5701 case TARGET_NR_setpgid: 5702 ret = get_errno(setpgid(arg1, arg2)); 5703 break; 5704 #ifdef TARGET_NR_ulimit 5705 case TARGET_NR_ulimit: 5706 goto unimplemented; 5707 #endif 5708 #ifdef TARGET_NR_oldolduname 5709 case TARGET_NR_oldolduname: 5710 goto unimplemented; 5711 #endif 5712 case TARGET_NR_umask: 5713 ret = get_errno(umask(arg1)); 5714 break; 5715 case TARGET_NR_chroot: 5716 if (!(p = lock_user_string(arg1))) 5717 goto efault; 5718 ret = get_errno(chroot(p)); 5719 unlock_user(p, arg1, 0); 5720 break; 5721 case TARGET_NR_ustat: 5722 goto unimplemented; 5723 case TARGET_NR_dup2: 5724 ret = get_errno(dup2(arg1, arg2)); 5725 break; 5726 #if defined(CONFIG_DUP3) && defined(TARGET_NR_dup3) 5727 case TARGET_NR_dup3: 5728 ret = get_errno(dup3(arg1, arg2, arg3)); 5729 break; 5730 #endif 5731 #ifdef TARGET_NR_getppid /* not on alpha */ 5732 case TARGET_NR_getppid: 5733 ret = get_errno(getppid()); 5734 break; 5735 #endif 5736 case TARGET_NR_getpgrp: 5737 ret = get_errno(getpgrp()); 5738 break; 5739 case TARGET_NR_setsid: 5740 ret = get_errno(setsid()); 5741 break; 5742 #ifdef TARGET_NR_sigaction 5743 case TARGET_NR_sigaction: 5744 { 5745 #if defined(TARGET_ALPHA) 5746 struct target_sigaction act, oact, *pact = 0; 5747 struct target_old_sigaction *old_act; 5748 if (arg2) { 5749 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1)) 5750 goto efault; 5751 act._sa_handler = old_act->_sa_handler; 5752 target_siginitset(&act.sa_mask, old_act->sa_mask); 5753 act.sa_flags = old_act->sa_flags; 5754 act.sa_restorer = 0; 5755 unlock_user_struct(old_act, arg2, 0); 5756 pact = &act; 5757 } 5758 ret = get_errno(do_sigaction(arg1, pact, &oact)); 5759 if (!is_error(ret) && arg3) { 5760 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0)) 5761 goto efault; 5762 old_act->_sa_handler = oact._sa_handler; 5763 old_act->sa_mask = oact.sa_mask.sig[0]; 5764 old_act->sa_flags = oact.sa_flags; 5765 unlock_user_struct(old_act, arg3, 1); 5766 } 5767 #elif defined(TARGET_MIPS) 5768 struct target_sigaction act, oact, *pact, *old_act; 5769 5770 if (arg2) { 5771 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1)) 5772 goto efault; 5773 act._sa_handler = old_act->_sa_handler; 5774 target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]); 5775 act.sa_flags = old_act->sa_flags; 5776 unlock_user_struct(old_act, arg2, 0); 5777 pact = &act; 5778 } else { 5779 pact = NULL; 5780 } 5781 5782 ret = get_errno(do_sigaction(arg1, pact, &oact)); 5783 5784 if (!is_error(ret) && arg3) { 5785 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0)) 5786 goto efault; 5787 old_act->_sa_handler = oact._sa_handler; 5788 old_act->sa_flags = oact.sa_flags; 5789 old_act->sa_mask.sig[0] = oact.sa_mask.sig[0]; 5790 old_act->sa_mask.sig[1] = 0; 5791 old_act->sa_mask.sig[2] = 0; 5792 old_act->sa_mask.sig[3] = 0; 5793 unlock_user_struct(old_act, arg3, 1); 5794 } 5795 #else 5796 struct target_old_sigaction *old_act; 5797 struct target_sigaction act, oact, *pact; 5798 if (arg2) { 5799 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1)) 5800 goto efault; 5801 act._sa_handler = old_act->_sa_handler; 5802 target_siginitset(&act.sa_mask, old_act->sa_mask); 5803 act.sa_flags = old_act->sa_flags; 5804 act.sa_restorer = old_act->sa_restorer; 5805 unlock_user_struct(old_act, arg2, 0); 5806 pact = &act; 5807 } else { 5808 pact = NULL; 5809 } 5810 ret = get_errno(do_sigaction(arg1, pact, &oact)); 5811 if (!is_error(ret) && arg3) { 5812 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0)) 5813 goto efault; 5814 old_act->_sa_handler = oact._sa_handler; 5815 old_act->sa_mask = oact.sa_mask.sig[0]; 5816 old_act->sa_flags = oact.sa_flags; 5817 old_act->sa_restorer = oact.sa_restorer; 5818 unlock_user_struct(old_act, arg3, 1); 5819 } 5820 #endif 5821 } 5822 break; 5823 #endif 5824 case TARGET_NR_rt_sigaction: 5825 { 5826 #if defined(TARGET_ALPHA) 5827 struct target_sigaction act, oact, *pact = 0; 5828 struct target_rt_sigaction *rt_act; 5829 /* ??? arg4 == sizeof(sigset_t). */ 5830 if (arg2) { 5831 if (!lock_user_struct(VERIFY_READ, rt_act, arg2, 1)) 5832 goto efault; 5833 act._sa_handler = rt_act->_sa_handler; 5834 act.sa_mask = rt_act->sa_mask; 5835 act.sa_flags = rt_act->sa_flags; 5836 act.sa_restorer = arg5; 5837 unlock_user_struct(rt_act, arg2, 0); 5838 pact = &act; 5839 } 5840 ret = get_errno(do_sigaction(arg1, pact, &oact)); 5841 if (!is_error(ret) && arg3) { 5842 if (!lock_user_struct(VERIFY_WRITE, rt_act, arg3, 0)) 5843 goto efault; 5844 rt_act->_sa_handler = oact._sa_handler; 5845 rt_act->sa_mask = oact.sa_mask; 5846 rt_act->sa_flags = oact.sa_flags; 5847 unlock_user_struct(rt_act, arg3, 1); 5848 } 5849 #else 5850 struct target_sigaction *act; 5851 struct target_sigaction *oact; 5852 5853 if (arg2) { 5854 if (!lock_user_struct(VERIFY_READ, act, arg2, 1)) 5855 goto efault; 5856 } else 5857 act = NULL; 5858 if (arg3) { 5859 if (!lock_user_struct(VERIFY_WRITE, oact, arg3, 0)) { 5860 ret = -TARGET_EFAULT; 5861 goto rt_sigaction_fail; 5862 } 5863 } else 5864 oact = NULL; 5865 ret = get_errno(do_sigaction(arg1, act, oact)); 5866 rt_sigaction_fail: 5867 if (act) 5868 unlock_user_struct(act, arg2, 0); 5869 if (oact) 5870 unlock_user_struct(oact, arg3, 1); 5871 #endif 5872 } 5873 break; 5874 #ifdef TARGET_NR_sgetmask /* not on alpha */ 5875 case TARGET_NR_sgetmask: 5876 { 5877 sigset_t cur_set; 5878 abi_ulong target_set; 5879 sigprocmask(0, NULL, &cur_set); 5880 host_to_target_old_sigset(&target_set, &cur_set); 5881 ret = target_set; 5882 } 5883 break; 5884 #endif 5885 #ifdef TARGET_NR_ssetmask /* not on alpha */ 5886 case TARGET_NR_ssetmask: 5887 { 5888 sigset_t set, oset, cur_set; 5889 abi_ulong target_set = arg1; 5890 sigprocmask(0, NULL, &cur_set); 5891 target_to_host_old_sigset(&set, &target_set); 5892 sigorset(&set, &set, &cur_set); 5893 sigprocmask(SIG_SETMASK, &set, &oset); 5894 host_to_target_old_sigset(&target_set, &oset); 5895 ret = target_set; 5896 } 5897 break; 5898 #endif 5899 #ifdef TARGET_NR_sigprocmask 5900 case TARGET_NR_sigprocmask: 5901 { 5902 #if defined(TARGET_ALPHA) 5903 sigset_t set, oldset; 5904 abi_ulong mask; 5905 int how; 5906 5907 switch (arg1) { 5908 case TARGET_SIG_BLOCK: 5909 how = SIG_BLOCK; 5910 break; 5911 case TARGET_SIG_UNBLOCK: 5912 how = SIG_UNBLOCK; 5913 break; 5914 case TARGET_SIG_SETMASK: 5915 how = SIG_SETMASK; 5916 break; 5917 default: 5918 ret = -TARGET_EINVAL; 5919 goto fail; 5920 } 5921 mask = arg2; 5922 target_to_host_old_sigset(&set, &mask); 5923 5924 ret = get_errno(sigprocmask(how, &set, &oldset)); 5925 if (!is_error(ret)) { 5926 host_to_target_old_sigset(&mask, &oldset); 5927 ret = mask; 5928 ((CPUAlphaState *)cpu_env)->ir[IR_V0] = 0; /* force no error */ 5929 } 5930 #else 5931 sigset_t set, oldset, *set_ptr; 5932 int how; 5933 5934 if (arg2) { 5935 switch (arg1) { 5936 case TARGET_SIG_BLOCK: 5937 how = SIG_BLOCK; 5938 break; 5939 case TARGET_SIG_UNBLOCK: 5940 how = SIG_UNBLOCK; 5941 break; 5942 case TARGET_SIG_SETMASK: 5943 how = SIG_SETMASK; 5944 break; 5945 default: 5946 ret = -TARGET_EINVAL; 5947 goto fail; 5948 } 5949 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1))) 5950 goto efault; 5951 target_to_host_old_sigset(&set, p); 5952 unlock_user(p, arg2, 0); 5953 set_ptr = &set; 5954 } else { 5955 how = 0; 5956 set_ptr = NULL; 5957 } 5958 ret = get_errno(sigprocmask(how, set_ptr, &oldset)); 5959 if (!is_error(ret) && arg3) { 5960 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0))) 5961 goto efault; 5962 host_to_target_old_sigset(p, &oldset); 5963 unlock_user(p, arg3, sizeof(target_sigset_t)); 5964 } 5965 #endif 5966 } 5967 break; 5968 #endif 5969 case TARGET_NR_rt_sigprocmask: 5970 { 5971 int how = arg1; 5972 sigset_t set, oldset, *set_ptr; 5973 5974 if (arg2) { 5975 switch(how) { 5976 case TARGET_SIG_BLOCK: 5977 how = SIG_BLOCK; 5978 break; 5979 case TARGET_SIG_UNBLOCK: 5980 how = SIG_UNBLOCK; 5981 break; 5982 case TARGET_SIG_SETMASK: 5983 how = SIG_SETMASK; 5984 break; 5985 default: 5986 ret = -TARGET_EINVAL; 5987 goto fail; 5988 } 5989 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1))) 5990 goto efault; 5991 target_to_host_sigset(&set, p); 5992 unlock_user(p, arg2, 0); 5993 set_ptr = &set; 5994 } else { 5995 how = 0; 5996 set_ptr = NULL; 5997 } 5998 ret = get_errno(sigprocmask(how, set_ptr, &oldset)); 5999 if (!is_error(ret) && arg3) { 6000 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0))) 6001 goto efault; 6002 host_to_target_sigset(p, &oldset); 6003 unlock_user(p, arg3, sizeof(target_sigset_t)); 6004 } 6005 } 6006 break; 6007 #ifdef TARGET_NR_sigpending 6008 case TARGET_NR_sigpending: 6009 { 6010 sigset_t set; 6011 ret = get_errno(sigpending(&set)); 6012 if (!is_error(ret)) { 6013 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0))) 6014 goto efault; 6015 host_to_target_old_sigset(p, &set); 6016 unlock_user(p, arg1, sizeof(target_sigset_t)); 6017 } 6018 } 6019 break; 6020 #endif 6021 case TARGET_NR_rt_sigpending: 6022 { 6023 sigset_t set; 6024 ret = get_errno(sigpending(&set)); 6025 if (!is_error(ret)) { 6026 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0))) 6027 goto efault; 6028 host_to_target_sigset(p, &set); 6029 unlock_user(p, arg1, sizeof(target_sigset_t)); 6030 } 6031 } 6032 break; 6033 #ifdef TARGET_NR_sigsuspend 6034 case TARGET_NR_sigsuspend: 6035 { 6036 sigset_t set; 6037 #if defined(TARGET_ALPHA) 6038 abi_ulong mask = arg1; 6039 target_to_host_old_sigset(&set, &mask); 6040 #else 6041 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1))) 6042 goto efault; 6043 target_to_host_old_sigset(&set, p); 6044 unlock_user(p, arg1, 0); 6045 #endif 6046 ret = get_errno(sigsuspend(&set)); 6047 } 6048 break; 6049 #endif 6050 case TARGET_NR_rt_sigsuspend: 6051 { 6052 sigset_t set; 6053 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1))) 6054 goto efault; 6055 target_to_host_sigset(&set, p); 6056 unlock_user(p, arg1, 0); 6057 ret = get_errno(sigsuspend(&set)); 6058 } 6059 break; 6060 case TARGET_NR_rt_sigtimedwait: 6061 { 6062 sigset_t set; 6063 struct timespec uts, *puts; 6064 siginfo_t uinfo; 6065 6066 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1))) 6067 goto efault; 6068 target_to_host_sigset(&set, p); 6069 unlock_user(p, arg1, 0); 6070 if (arg3) { 6071 puts = &uts; 6072 target_to_host_timespec(puts, arg3); 6073 } else { 6074 puts = NULL; 6075 } 6076 ret = get_errno(sigtimedwait(&set, &uinfo, puts)); 6077 if (!is_error(ret) && arg2) { 6078 if (!(p = lock_user(VERIFY_WRITE, arg2, sizeof(target_siginfo_t), 0))) 6079 goto efault; 6080 host_to_target_siginfo(p, &uinfo); 6081 unlock_user(p, arg2, sizeof(target_siginfo_t)); 6082 } 6083 } 6084 break; 6085 case TARGET_NR_rt_sigqueueinfo: 6086 { 6087 siginfo_t uinfo; 6088 if (!(p = lock_user(VERIFY_READ, arg3, sizeof(target_sigset_t), 1))) 6089 goto efault; 6090 target_to_host_siginfo(&uinfo, p); 6091 unlock_user(p, arg1, 0); 6092 ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo)); 6093 } 6094 break; 6095 #ifdef TARGET_NR_sigreturn 6096 case TARGET_NR_sigreturn: 6097 /* NOTE: ret is eax, so not transcoding must be done */ 6098 ret = do_sigreturn(cpu_env); 6099 break; 6100 #endif 6101 case TARGET_NR_rt_sigreturn: 6102 /* NOTE: ret is eax, so not transcoding must be done */ 6103 ret = do_rt_sigreturn(cpu_env); 6104 break; 6105 case TARGET_NR_sethostname: 6106 if (!(p = lock_user_string(arg1))) 6107 goto efault; 6108 ret = get_errno(sethostname(p, arg2)); 6109 unlock_user(p, arg1, 0); 6110 break; 6111 case TARGET_NR_setrlimit: 6112 { 6113 int resource = target_to_host_resource(arg1); 6114 struct target_rlimit *target_rlim; 6115 struct rlimit rlim; 6116 if (!lock_user_struct(VERIFY_READ, target_rlim, arg2, 1)) 6117 goto efault; 6118 rlim.rlim_cur = target_to_host_rlim(target_rlim->rlim_cur); 6119 rlim.rlim_max = target_to_host_rlim(target_rlim->rlim_max); 6120 unlock_user_struct(target_rlim, arg2, 0); 6121 ret = get_errno(setrlimit(resource, &rlim)); 6122 } 6123 break; 6124 case TARGET_NR_getrlimit: 6125 { 6126 int resource = target_to_host_resource(arg1); 6127 struct target_rlimit *target_rlim; 6128 struct rlimit rlim; 6129 6130 ret = get_errno(getrlimit(resource, &rlim)); 6131 if (!is_error(ret)) { 6132 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0)) 6133 goto efault; 6134 target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur); 6135 target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max); 6136 unlock_user_struct(target_rlim, arg2, 1); 6137 } 6138 } 6139 break; 6140 case TARGET_NR_getrusage: 6141 { 6142 struct rusage rusage; 6143 ret = get_errno(getrusage(arg1, &rusage)); 6144 if (!is_error(ret)) { 6145 host_to_target_rusage(arg2, &rusage); 6146 } 6147 } 6148 break; 6149 case TARGET_NR_gettimeofday: 6150 { 6151 struct timeval tv; 6152 ret = get_errno(gettimeofday(&tv, NULL)); 6153 if (!is_error(ret)) { 6154 if (copy_to_user_timeval(arg1, &tv)) 6155 goto efault; 6156 } 6157 } 6158 break; 6159 case TARGET_NR_settimeofday: 6160 { 6161 struct timeval tv; 6162 if (copy_from_user_timeval(&tv, arg1)) 6163 goto efault; 6164 ret = get_errno(settimeofday(&tv, NULL)); 6165 } 6166 break; 6167 #if defined(TARGET_NR_select) 6168 case TARGET_NR_select: 6169 #if defined(TARGET_S390X) || defined(TARGET_ALPHA) 6170 ret = do_select(arg1, arg2, arg3, arg4, arg5); 6171 #else 6172 { 6173 struct target_sel_arg_struct *sel; 6174 abi_ulong inp, outp, exp, tvp; 6175 long nsel; 6176 6177 if (!lock_user_struct(VERIFY_READ, sel, arg1, 1)) 6178 goto efault; 6179 nsel = tswapal(sel->n); 6180 inp = tswapal(sel->inp); 6181 outp = tswapal(sel->outp); 6182 exp = tswapal(sel->exp); 6183 tvp = tswapal(sel->tvp); 6184 unlock_user_struct(sel, arg1, 0); 6185 ret = do_select(nsel, inp, outp, exp, tvp); 6186 } 6187 #endif 6188 break; 6189 #endif 6190 #ifdef TARGET_NR_pselect6 6191 case TARGET_NR_pselect6: 6192 { 6193 abi_long rfd_addr, wfd_addr, efd_addr, n, ts_addr; 6194 fd_set rfds, wfds, efds; 6195 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr; 6196 struct timespec ts, *ts_ptr; 6197 6198 /* 6199 * The 6th arg is actually two args smashed together, 6200 * so we cannot use the C library. 6201 */ 6202 sigset_t set; 6203 struct { 6204 sigset_t *set; 6205 size_t size; 6206 } sig, *sig_ptr; 6207 6208 abi_ulong arg_sigset, arg_sigsize, *arg7; 6209 target_sigset_t *target_sigset; 6210 6211 n = arg1; 6212 rfd_addr = arg2; 6213 wfd_addr = arg3; 6214 efd_addr = arg4; 6215 ts_addr = arg5; 6216 6217 ret = copy_from_user_fdset_ptr(&rfds, &rfds_ptr, rfd_addr, n); 6218 if (ret) { 6219 goto fail; 6220 } 6221 ret = copy_from_user_fdset_ptr(&wfds, &wfds_ptr, wfd_addr, n); 6222 if (ret) { 6223 goto fail; 6224 } 6225 ret = copy_from_user_fdset_ptr(&efds, &efds_ptr, efd_addr, n); 6226 if (ret) { 6227 goto fail; 6228 } 6229 6230 /* 6231 * This takes a timespec, and not a timeval, so we cannot 6232 * use the do_select() helper ... 6233 */ 6234 if (ts_addr) { 6235 if (target_to_host_timespec(&ts, ts_addr)) { 6236 goto efault; 6237 } 6238 ts_ptr = &ts; 6239 } else { 6240 ts_ptr = NULL; 6241 } 6242 6243 /* Extract the two packed args for the sigset */ 6244 if (arg6) { 6245 sig_ptr = &sig; 6246 sig.size = _NSIG / 8; 6247 6248 arg7 = lock_user(VERIFY_READ, arg6, sizeof(*arg7) * 2, 1); 6249 if (!arg7) { 6250 goto efault; 6251 } 6252 arg_sigset = tswapal(arg7[0]); 6253 arg_sigsize = tswapal(arg7[1]); 6254 unlock_user(arg7, arg6, 0); 6255 6256 if (arg_sigset) { 6257 sig.set = &set; 6258 if (arg_sigsize != sizeof(*target_sigset)) { 6259 /* Like the kernel, we enforce correct size sigsets */ 6260 ret = -TARGET_EINVAL; 6261 goto fail; 6262 } 6263 target_sigset = lock_user(VERIFY_READ, arg_sigset, 6264 sizeof(*target_sigset), 1); 6265 if (!target_sigset) { 6266 goto efault; 6267 } 6268 target_to_host_sigset(&set, target_sigset); 6269 unlock_user(target_sigset, arg_sigset, 0); 6270 } else { 6271 sig.set = NULL; 6272 } 6273 } else { 6274 sig_ptr = NULL; 6275 } 6276 6277 ret = get_errno(sys_pselect6(n, rfds_ptr, wfds_ptr, efds_ptr, 6278 ts_ptr, sig_ptr)); 6279 6280 if (!is_error(ret)) { 6281 if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n)) 6282 goto efault; 6283 if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n)) 6284 goto efault; 6285 if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n)) 6286 goto efault; 6287 6288 if (ts_addr && host_to_target_timespec(ts_addr, &ts)) 6289 goto efault; 6290 } 6291 } 6292 break; 6293 #endif 6294 case TARGET_NR_symlink: 6295 { 6296 void *p2; 6297 p = lock_user_string(arg1); 6298 p2 = lock_user_string(arg2); 6299 if (!p || !p2) 6300 ret = -TARGET_EFAULT; 6301 else 6302 ret = get_errno(symlink(p, p2)); 6303 unlock_user(p2, arg2, 0); 6304 unlock_user(p, arg1, 0); 6305 } 6306 break; 6307 #if defined(TARGET_NR_symlinkat) 6308 case TARGET_NR_symlinkat: 6309 { 6310 void *p2; 6311 p = lock_user_string(arg1); 6312 p2 = lock_user_string(arg3); 6313 if (!p || !p2) 6314 ret = -TARGET_EFAULT; 6315 else 6316 ret = get_errno(symlinkat(p, arg2, p2)); 6317 unlock_user(p2, arg3, 0); 6318 unlock_user(p, arg1, 0); 6319 } 6320 break; 6321 #endif 6322 #ifdef TARGET_NR_oldlstat 6323 case TARGET_NR_oldlstat: 6324 goto unimplemented; 6325 #endif 6326 case TARGET_NR_readlink: 6327 { 6328 void *p2; 6329 p = lock_user_string(arg1); 6330 p2 = lock_user(VERIFY_WRITE, arg2, arg3, 0); 6331 if (!p || !p2) { 6332 ret = -TARGET_EFAULT; 6333 } else if (is_proc_myself((const char *)p, "exe")) { 6334 char real[PATH_MAX], *temp; 6335 temp = realpath(exec_path, real); 6336 ret = temp == NULL ? get_errno(-1) : strlen(real) ; 6337 snprintf((char *)p2, arg3, "%s", real); 6338 } else { 6339 ret = get_errno(readlink(path(p), p2, arg3)); 6340 } 6341 unlock_user(p2, arg2, ret); 6342 unlock_user(p, arg1, 0); 6343 } 6344 break; 6345 #if defined(TARGET_NR_readlinkat) 6346 case TARGET_NR_readlinkat: 6347 { 6348 void *p2; 6349 p = lock_user_string(arg2); 6350 p2 = lock_user(VERIFY_WRITE, arg3, arg4, 0); 6351 if (!p || !p2) { 6352 ret = -TARGET_EFAULT; 6353 } else if (is_proc_myself((const char *)p, "exe")) { 6354 char real[PATH_MAX], *temp; 6355 temp = realpath(exec_path, real); 6356 ret = temp == NULL ? get_errno(-1) : strlen(real) ; 6357 snprintf((char *)p2, arg4, "%s", real); 6358 } else { 6359 ret = get_errno(readlinkat(arg1, path(p), p2, arg4)); 6360 } 6361 unlock_user(p2, arg3, ret); 6362 unlock_user(p, arg2, 0); 6363 } 6364 break; 6365 #endif 6366 #ifdef TARGET_NR_uselib 6367 case TARGET_NR_uselib: 6368 goto unimplemented; 6369 #endif 6370 #ifdef TARGET_NR_swapon 6371 case TARGET_NR_swapon: 6372 if (!(p = lock_user_string(arg1))) 6373 goto efault; 6374 ret = get_errno(swapon(p, arg2)); 6375 unlock_user(p, arg1, 0); 6376 break; 6377 #endif 6378 case TARGET_NR_reboot: 6379 if (arg3 == LINUX_REBOOT_CMD_RESTART2) { 6380 /* arg4 must be ignored in all other cases */ 6381 p = lock_user_string(arg4); 6382 if (!p) { 6383 goto efault; 6384 } 6385 ret = get_errno(reboot(arg1, arg2, arg3, p)); 6386 unlock_user(p, arg4, 0); 6387 } else { 6388 ret = get_errno(reboot(arg1, arg2, arg3, NULL)); 6389 } 6390 break; 6391 #ifdef TARGET_NR_readdir 6392 case TARGET_NR_readdir: 6393 goto unimplemented; 6394 #endif 6395 #ifdef TARGET_NR_mmap 6396 case TARGET_NR_mmap: 6397 #if (defined(TARGET_I386) && defined(TARGET_ABI32)) || defined(TARGET_ARM) || \ 6398 defined(TARGET_M68K) || defined(TARGET_CRIS) || defined(TARGET_MICROBLAZE) \ 6399 || defined(TARGET_S390X) 6400 { 6401 abi_ulong *v; 6402 abi_ulong v1, v2, v3, v4, v5, v6; 6403 if (!(v = lock_user(VERIFY_READ, arg1, 6 * sizeof(abi_ulong), 1))) 6404 goto efault; 6405 v1 = tswapal(v[0]); 6406 v2 = tswapal(v[1]); 6407 v3 = tswapal(v[2]); 6408 v4 = tswapal(v[3]); 6409 v5 = tswapal(v[4]); 6410 v6 = tswapal(v[5]); 6411 unlock_user(v, arg1, 0); 6412 ret = get_errno(target_mmap(v1, v2, v3, 6413 target_to_host_bitmask(v4, mmap_flags_tbl), 6414 v5, v6)); 6415 } 6416 #else 6417 ret = get_errno(target_mmap(arg1, arg2, arg3, 6418 target_to_host_bitmask(arg4, mmap_flags_tbl), 6419 arg5, 6420 arg6)); 6421 #endif 6422 break; 6423 #endif 6424 #ifdef TARGET_NR_mmap2 6425 case TARGET_NR_mmap2: 6426 #ifndef MMAP_SHIFT 6427 #define MMAP_SHIFT 12 6428 #endif 6429 ret = get_errno(target_mmap(arg1, arg2, arg3, 6430 target_to_host_bitmask(arg4, mmap_flags_tbl), 6431 arg5, 6432 arg6 << MMAP_SHIFT)); 6433 break; 6434 #endif 6435 case TARGET_NR_munmap: 6436 ret = get_errno(target_munmap(arg1, arg2)); 6437 break; 6438 case TARGET_NR_mprotect: 6439 { 6440 TaskState *ts = ((CPUArchState *)cpu_env)->opaque; 6441 /* Special hack to detect libc making the stack executable. */ 6442 if ((arg3 & PROT_GROWSDOWN) 6443 && arg1 >= ts->info->stack_limit 6444 && arg1 <= ts->info->start_stack) { 6445 arg3 &= ~PROT_GROWSDOWN; 6446 arg2 = arg2 + arg1 - ts->info->stack_limit; 6447 arg1 = ts->info->stack_limit; 6448 } 6449 } 6450 ret = get_errno(target_mprotect(arg1, arg2, arg3)); 6451 break; 6452 #ifdef TARGET_NR_mremap 6453 case TARGET_NR_mremap: 6454 ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5)); 6455 break; 6456 #endif 6457 /* ??? msync/mlock/munlock are broken for softmmu. */ 6458 #ifdef TARGET_NR_msync 6459 case TARGET_NR_msync: 6460 ret = get_errno(msync(g2h(arg1), arg2, arg3)); 6461 break; 6462 #endif 6463 #ifdef TARGET_NR_mlock 6464 case TARGET_NR_mlock: 6465 ret = get_errno(mlock(g2h(arg1), arg2)); 6466 break; 6467 #endif 6468 #ifdef TARGET_NR_munlock 6469 case TARGET_NR_munlock: 6470 ret = get_errno(munlock(g2h(arg1), arg2)); 6471 break; 6472 #endif 6473 #ifdef TARGET_NR_mlockall 6474 case TARGET_NR_mlockall: 6475 ret = get_errno(mlockall(arg1)); 6476 break; 6477 #endif 6478 #ifdef TARGET_NR_munlockall 6479 case TARGET_NR_munlockall: 6480 ret = get_errno(munlockall()); 6481 break; 6482 #endif 6483 case TARGET_NR_truncate: 6484 if (!(p = lock_user_string(arg1))) 6485 goto efault; 6486 ret = get_errno(truncate(p, arg2)); 6487 unlock_user(p, arg1, 0); 6488 break; 6489 case TARGET_NR_ftruncate: 6490 ret = get_errno(ftruncate(arg1, arg2)); 6491 break; 6492 case TARGET_NR_fchmod: 6493 ret = get_errno(fchmod(arg1, arg2)); 6494 break; 6495 #if defined(TARGET_NR_fchmodat) 6496 case TARGET_NR_fchmodat: 6497 if (!(p = lock_user_string(arg2))) 6498 goto efault; 6499 ret = get_errno(fchmodat(arg1, p, arg3, 0)); 6500 unlock_user(p, arg2, 0); 6501 break; 6502 #endif 6503 case TARGET_NR_getpriority: 6504 /* Note that negative values are valid for getpriority, so we must 6505 differentiate based on errno settings. */ 6506 errno = 0; 6507 ret = getpriority(arg1, arg2); 6508 if (ret == -1 && errno != 0) { 6509 ret = -host_to_target_errno(errno); 6510 break; 6511 } 6512 #ifdef TARGET_ALPHA 6513 /* Return value is the unbiased priority. Signal no error. */ 6514 ((CPUAlphaState *)cpu_env)->ir[IR_V0] = 0; 6515 #else 6516 /* Return value is a biased priority to avoid negative numbers. */ 6517 ret = 20 - ret; 6518 #endif 6519 break; 6520 case TARGET_NR_setpriority: 6521 ret = get_errno(setpriority(arg1, arg2, arg3)); 6522 break; 6523 #ifdef TARGET_NR_profil 6524 case TARGET_NR_profil: 6525 goto unimplemented; 6526 #endif 6527 case TARGET_NR_statfs: 6528 if (!(p = lock_user_string(arg1))) 6529 goto efault; 6530 ret = get_errno(statfs(path(p), &stfs)); 6531 unlock_user(p, arg1, 0); 6532 convert_statfs: 6533 if (!is_error(ret)) { 6534 struct target_statfs *target_stfs; 6535 6536 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg2, 0)) 6537 goto efault; 6538 __put_user(stfs.f_type, &target_stfs->f_type); 6539 __put_user(stfs.f_bsize, &target_stfs->f_bsize); 6540 __put_user(stfs.f_blocks, &target_stfs->f_blocks); 6541 __put_user(stfs.f_bfree, &target_stfs->f_bfree); 6542 __put_user(stfs.f_bavail, &target_stfs->f_bavail); 6543 __put_user(stfs.f_files, &target_stfs->f_files); 6544 __put_user(stfs.f_ffree, &target_stfs->f_ffree); 6545 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]); 6546 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]); 6547 __put_user(stfs.f_namelen, &target_stfs->f_namelen); 6548 __put_user(stfs.f_frsize, &target_stfs->f_frsize); 6549 memset(target_stfs->f_spare, 0, sizeof(target_stfs->f_spare)); 6550 unlock_user_struct(target_stfs, arg2, 1); 6551 } 6552 break; 6553 case TARGET_NR_fstatfs: 6554 ret = get_errno(fstatfs(arg1, &stfs)); 6555 goto convert_statfs; 6556 #ifdef TARGET_NR_statfs64 6557 case TARGET_NR_statfs64: 6558 if (!(p = lock_user_string(arg1))) 6559 goto efault; 6560 ret = get_errno(statfs(path(p), &stfs)); 6561 unlock_user(p, arg1, 0); 6562 convert_statfs64: 6563 if (!is_error(ret)) { 6564 struct target_statfs64 *target_stfs; 6565 6566 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg3, 0)) 6567 goto efault; 6568 __put_user(stfs.f_type, &target_stfs->f_type); 6569 __put_user(stfs.f_bsize, &target_stfs->f_bsize); 6570 __put_user(stfs.f_blocks, &target_stfs->f_blocks); 6571 __put_user(stfs.f_bfree, &target_stfs->f_bfree); 6572 __put_user(stfs.f_bavail, &target_stfs->f_bavail); 6573 __put_user(stfs.f_files, &target_stfs->f_files); 6574 __put_user(stfs.f_ffree, &target_stfs->f_ffree); 6575 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]); 6576 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]); 6577 __put_user(stfs.f_namelen, &target_stfs->f_namelen); 6578 __put_user(stfs.f_frsize, &target_stfs->f_frsize); 6579 memset(target_stfs->f_spare, 0, sizeof(target_stfs->f_spare)); 6580 unlock_user_struct(target_stfs, arg3, 1); 6581 } 6582 break; 6583 case TARGET_NR_fstatfs64: 6584 ret = get_errno(fstatfs(arg1, &stfs)); 6585 goto convert_statfs64; 6586 #endif 6587 #ifdef TARGET_NR_ioperm 6588 case TARGET_NR_ioperm: 6589 goto unimplemented; 6590 #endif 6591 #ifdef TARGET_NR_socketcall 6592 case TARGET_NR_socketcall: 6593 ret = do_socketcall(arg1, arg2); 6594 break; 6595 #endif 6596 #ifdef TARGET_NR_accept 6597 case TARGET_NR_accept: 6598 ret = do_accept4(arg1, arg2, arg3, 0); 6599 break; 6600 #endif 6601 #ifdef TARGET_NR_accept4 6602 case TARGET_NR_accept4: 6603 #ifdef CONFIG_ACCEPT4 6604 ret = do_accept4(arg1, arg2, arg3, arg4); 6605 #else 6606 goto unimplemented; 6607 #endif 6608 break; 6609 #endif 6610 #ifdef TARGET_NR_bind 6611 case TARGET_NR_bind: 6612 ret = do_bind(arg1, arg2, arg3); 6613 break; 6614 #endif 6615 #ifdef TARGET_NR_connect 6616 case TARGET_NR_connect: 6617 ret = do_connect(arg1, arg2, arg3); 6618 break; 6619 #endif 6620 #ifdef TARGET_NR_getpeername 6621 case TARGET_NR_getpeername: 6622 ret = do_getpeername(arg1, arg2, arg3); 6623 break; 6624 #endif 6625 #ifdef TARGET_NR_getsockname 6626 case TARGET_NR_getsockname: 6627 ret = do_getsockname(arg1, arg2, arg3); 6628 break; 6629 #endif 6630 #ifdef TARGET_NR_getsockopt 6631 case TARGET_NR_getsockopt: 6632 ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5); 6633 break; 6634 #endif 6635 #ifdef TARGET_NR_listen 6636 case TARGET_NR_listen: 6637 ret = get_errno(listen(arg1, arg2)); 6638 break; 6639 #endif 6640 #ifdef TARGET_NR_recv 6641 case TARGET_NR_recv: 6642 ret = do_recvfrom(arg1, arg2, arg3, arg4, 0, 0); 6643 break; 6644 #endif 6645 #ifdef TARGET_NR_recvfrom 6646 case TARGET_NR_recvfrom: 6647 ret = do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6); 6648 break; 6649 #endif 6650 #ifdef TARGET_NR_recvmsg 6651 case TARGET_NR_recvmsg: 6652 ret = do_sendrecvmsg(arg1, arg2, arg3, 0); 6653 break; 6654 #endif 6655 #ifdef TARGET_NR_send 6656 case TARGET_NR_send: 6657 ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0); 6658 break; 6659 #endif 6660 #ifdef TARGET_NR_sendmsg 6661 case TARGET_NR_sendmsg: 6662 ret = do_sendrecvmsg(arg1, arg2, arg3, 1); 6663 break; 6664 #endif 6665 #ifdef TARGET_NR_sendto 6666 case TARGET_NR_sendto: 6667 ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6); 6668 break; 6669 #endif 6670 #ifdef TARGET_NR_shutdown 6671 case TARGET_NR_shutdown: 6672 ret = get_errno(shutdown(arg1, arg2)); 6673 break; 6674 #endif 6675 #ifdef TARGET_NR_socket 6676 case TARGET_NR_socket: 6677 ret = do_socket(arg1, arg2, arg3); 6678 break; 6679 #endif 6680 #ifdef TARGET_NR_socketpair 6681 case TARGET_NR_socketpair: 6682 ret = do_socketpair(arg1, arg2, arg3, arg4); 6683 break; 6684 #endif 6685 #ifdef TARGET_NR_setsockopt 6686 case TARGET_NR_setsockopt: 6687 ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5); 6688 break; 6689 #endif 6690 6691 case TARGET_NR_syslog: 6692 if (!(p = lock_user_string(arg2))) 6693 goto efault; 6694 ret = get_errno(sys_syslog((int)arg1, p, (int)arg3)); 6695 unlock_user(p, arg2, 0); 6696 break; 6697 6698 case TARGET_NR_setitimer: 6699 { 6700 struct itimerval value, ovalue, *pvalue; 6701 6702 if (arg2) { 6703 pvalue = &value; 6704 if (copy_from_user_timeval(&pvalue->it_interval, arg2) 6705 || copy_from_user_timeval(&pvalue->it_value, 6706 arg2 + sizeof(struct target_timeval))) 6707 goto efault; 6708 } else { 6709 pvalue = NULL; 6710 } 6711 ret = get_errno(setitimer(arg1, pvalue, &ovalue)); 6712 if (!is_error(ret) && arg3) { 6713 if (copy_to_user_timeval(arg3, 6714 &ovalue.it_interval) 6715 || copy_to_user_timeval(arg3 + sizeof(struct target_timeval), 6716 &ovalue.it_value)) 6717 goto efault; 6718 } 6719 } 6720 break; 6721 case TARGET_NR_getitimer: 6722 { 6723 struct itimerval value; 6724 6725 ret = get_errno(getitimer(arg1, &value)); 6726 if (!is_error(ret) && arg2) { 6727 if (copy_to_user_timeval(arg2, 6728 &value.it_interval) 6729 || copy_to_user_timeval(arg2 + sizeof(struct target_timeval), 6730 &value.it_value)) 6731 goto efault; 6732 } 6733 } 6734 break; 6735 case TARGET_NR_stat: 6736 if (!(p = lock_user_string(arg1))) 6737 goto efault; 6738 ret = get_errno(stat(path(p), &st)); 6739 unlock_user(p, arg1, 0); 6740 goto do_stat; 6741 case TARGET_NR_lstat: 6742 if (!(p = lock_user_string(arg1))) 6743 goto efault; 6744 ret = get_errno(lstat(path(p), &st)); 6745 unlock_user(p, arg1, 0); 6746 goto do_stat; 6747 case TARGET_NR_fstat: 6748 { 6749 ret = get_errno(fstat(arg1, &st)); 6750 do_stat: 6751 if (!is_error(ret)) { 6752 struct target_stat *target_st; 6753 6754 if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0)) 6755 goto efault; 6756 memset(target_st, 0, sizeof(*target_st)); 6757 __put_user(st.st_dev, &target_st->st_dev); 6758 __put_user(st.st_ino, &target_st->st_ino); 6759 __put_user(st.st_mode, &target_st->st_mode); 6760 __put_user(st.st_uid, &target_st->st_uid); 6761 __put_user(st.st_gid, &target_st->st_gid); 6762 __put_user(st.st_nlink, &target_st->st_nlink); 6763 __put_user(st.st_rdev, &target_st->st_rdev); 6764 __put_user(st.st_size, &target_st->st_size); 6765 __put_user(st.st_blksize, &target_st->st_blksize); 6766 __put_user(st.st_blocks, &target_st->st_blocks); 6767 __put_user(st.st_atime, &target_st->target_st_atime); 6768 __put_user(st.st_mtime, &target_st->target_st_mtime); 6769 __put_user(st.st_ctime, &target_st->target_st_ctime); 6770 unlock_user_struct(target_st, arg2, 1); 6771 } 6772 } 6773 break; 6774 #ifdef TARGET_NR_olduname 6775 case TARGET_NR_olduname: 6776 goto unimplemented; 6777 #endif 6778 #ifdef TARGET_NR_iopl 6779 case TARGET_NR_iopl: 6780 goto unimplemented; 6781 #endif 6782 case TARGET_NR_vhangup: 6783 ret = get_errno(vhangup()); 6784 break; 6785 #ifdef TARGET_NR_idle 6786 case TARGET_NR_idle: 6787 goto unimplemented; 6788 #endif 6789 #ifdef TARGET_NR_syscall 6790 case TARGET_NR_syscall: 6791 ret = do_syscall(cpu_env, arg1 & 0xffff, arg2, arg3, arg4, arg5, 6792 arg6, arg7, arg8, 0); 6793 break; 6794 #endif 6795 case TARGET_NR_wait4: 6796 { 6797 int status; 6798 abi_long status_ptr = arg2; 6799 struct rusage rusage, *rusage_ptr; 6800 abi_ulong target_rusage = arg4; 6801 if (target_rusage) 6802 rusage_ptr = &rusage; 6803 else 6804 rusage_ptr = NULL; 6805 ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr)); 6806 if (!is_error(ret)) { 6807 if (status_ptr && ret) { 6808 status = host_to_target_waitstatus(status); 6809 if (put_user_s32(status, status_ptr)) 6810 goto efault; 6811 } 6812 if (target_rusage) 6813 host_to_target_rusage(target_rusage, &rusage); 6814 } 6815 } 6816 break; 6817 #ifdef TARGET_NR_swapoff 6818 case TARGET_NR_swapoff: 6819 if (!(p = lock_user_string(arg1))) 6820 goto efault; 6821 ret = get_errno(swapoff(p)); 6822 unlock_user(p, arg1, 0); 6823 break; 6824 #endif 6825 case TARGET_NR_sysinfo: 6826 { 6827 struct target_sysinfo *target_value; 6828 struct sysinfo value; 6829 ret = get_errno(sysinfo(&value)); 6830 if (!is_error(ret) && arg1) 6831 { 6832 if (!lock_user_struct(VERIFY_WRITE, target_value, arg1, 0)) 6833 goto efault; 6834 __put_user(value.uptime, &target_value->uptime); 6835 __put_user(value.loads[0], &target_value->loads[0]); 6836 __put_user(value.loads[1], &target_value->loads[1]); 6837 __put_user(value.loads[2], &target_value->loads[2]); 6838 __put_user(value.totalram, &target_value->totalram); 6839 __put_user(value.freeram, &target_value->freeram); 6840 __put_user(value.sharedram, &target_value->sharedram); 6841 __put_user(value.bufferram, &target_value->bufferram); 6842 __put_user(value.totalswap, &target_value->totalswap); 6843 __put_user(value.freeswap, &target_value->freeswap); 6844 __put_user(value.procs, &target_value->procs); 6845 __put_user(value.totalhigh, &target_value->totalhigh); 6846 __put_user(value.freehigh, &target_value->freehigh); 6847 __put_user(value.mem_unit, &target_value->mem_unit); 6848 unlock_user_struct(target_value, arg1, 1); 6849 } 6850 } 6851 break; 6852 #ifdef TARGET_NR_ipc 6853 case TARGET_NR_ipc: 6854 ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6); 6855 break; 6856 #endif 6857 #ifdef TARGET_NR_semget 6858 case TARGET_NR_semget: 6859 ret = get_errno(semget(arg1, arg2, arg3)); 6860 break; 6861 #endif 6862 #ifdef TARGET_NR_semop 6863 case TARGET_NR_semop: 6864 ret = do_semop(arg1, arg2, arg3); 6865 break; 6866 #endif 6867 #ifdef TARGET_NR_semctl 6868 case TARGET_NR_semctl: 6869 ret = do_semctl(arg1, arg2, arg3, (union target_semun)(abi_ulong)arg4); 6870 break; 6871 #endif 6872 #ifdef TARGET_NR_msgctl 6873 case TARGET_NR_msgctl: 6874 ret = do_msgctl(arg1, arg2, arg3); 6875 break; 6876 #endif 6877 #ifdef TARGET_NR_msgget 6878 case TARGET_NR_msgget: 6879 ret = get_errno(msgget(arg1, arg2)); 6880 break; 6881 #endif 6882 #ifdef TARGET_NR_msgrcv 6883 case TARGET_NR_msgrcv: 6884 ret = do_msgrcv(arg1, arg2, arg3, arg4, arg5); 6885 break; 6886 #endif 6887 #ifdef TARGET_NR_msgsnd 6888 case TARGET_NR_msgsnd: 6889 ret = do_msgsnd(arg1, arg2, arg3, arg4); 6890 break; 6891 #endif 6892 #ifdef TARGET_NR_shmget 6893 case TARGET_NR_shmget: 6894 ret = get_errno(shmget(arg1, arg2, arg3)); 6895 break; 6896 #endif 6897 #ifdef TARGET_NR_shmctl 6898 case TARGET_NR_shmctl: 6899 ret = do_shmctl(arg1, arg2, arg3); 6900 break; 6901 #endif 6902 #ifdef TARGET_NR_shmat 6903 case TARGET_NR_shmat: 6904 ret = do_shmat(arg1, arg2, arg3); 6905 break; 6906 #endif 6907 #ifdef TARGET_NR_shmdt 6908 case TARGET_NR_shmdt: 6909 ret = do_shmdt(arg1); 6910 break; 6911 #endif 6912 case TARGET_NR_fsync: 6913 ret = get_errno(fsync(arg1)); 6914 break; 6915 case TARGET_NR_clone: 6916 /* Linux manages to have three different orderings for its 6917 * arguments to clone(); the BACKWARDS and BACKWARDS2 defines 6918 * match the kernel's CONFIG_CLONE_* settings. 6919 * Microblaze is further special in that it uses a sixth 6920 * implicit argument to clone for the TLS pointer. 6921 */ 6922 #if defined(TARGET_MICROBLAZE) 6923 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg4, arg6, arg5)); 6924 #elif defined(TARGET_CLONE_BACKWARDS) 6925 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg4, arg5)); 6926 #elif defined(TARGET_CLONE_BACKWARDS2) 6927 ret = get_errno(do_fork(cpu_env, arg2, arg1, arg3, arg5, arg4)); 6928 #else 6929 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg5, arg4)); 6930 #endif 6931 break; 6932 #ifdef __NR_exit_group 6933 /* new thread calls */ 6934 case TARGET_NR_exit_group: 6935 #ifdef TARGET_GPROF 6936 _mcleanup(); 6937 #endif 6938 gdb_exit(cpu_env, arg1); 6939 ret = get_errno(exit_group(arg1)); 6940 break; 6941 #endif 6942 case TARGET_NR_setdomainname: 6943 if (!(p = lock_user_string(arg1))) 6944 goto efault; 6945 ret = get_errno(setdomainname(p, arg2)); 6946 unlock_user(p, arg1, 0); 6947 break; 6948 case TARGET_NR_uname: 6949 /* no need to transcode because we use the linux syscall */ 6950 { 6951 struct new_utsname * buf; 6952 6953 if (!lock_user_struct(VERIFY_WRITE, buf, arg1, 0)) 6954 goto efault; 6955 ret = get_errno(sys_uname(buf)); 6956 if (!is_error(ret)) { 6957 /* Overrite the native machine name with whatever is being 6958 emulated. */ 6959 strcpy (buf->machine, cpu_to_uname_machine(cpu_env)); 6960 /* Allow the user to override the reported release. */ 6961 if (qemu_uname_release && *qemu_uname_release) 6962 strcpy (buf->release, qemu_uname_release); 6963 } 6964 unlock_user_struct(buf, arg1, 1); 6965 } 6966 break; 6967 #ifdef TARGET_I386 6968 case TARGET_NR_modify_ldt: 6969 ret = do_modify_ldt(cpu_env, arg1, arg2, arg3); 6970 break; 6971 #if !defined(TARGET_X86_64) 6972 case TARGET_NR_vm86old: 6973 goto unimplemented; 6974 case TARGET_NR_vm86: 6975 ret = do_vm86(cpu_env, arg1, arg2); 6976 break; 6977 #endif 6978 #endif 6979 case TARGET_NR_adjtimex: 6980 goto unimplemented; 6981 #ifdef TARGET_NR_create_module 6982 case TARGET_NR_create_module: 6983 #endif 6984 case TARGET_NR_init_module: 6985 case TARGET_NR_delete_module: 6986 #ifdef TARGET_NR_get_kernel_syms 6987 case TARGET_NR_get_kernel_syms: 6988 #endif 6989 goto unimplemented; 6990 case TARGET_NR_quotactl: 6991 goto unimplemented; 6992 case TARGET_NR_getpgid: 6993 ret = get_errno(getpgid(arg1)); 6994 break; 6995 case TARGET_NR_fchdir: 6996 ret = get_errno(fchdir(arg1)); 6997 break; 6998 #ifdef TARGET_NR_bdflush /* not on x86_64 */ 6999 case TARGET_NR_bdflush: 7000 goto unimplemented; 7001 #endif 7002 #ifdef TARGET_NR_sysfs 7003 case TARGET_NR_sysfs: 7004 goto unimplemented; 7005 #endif 7006 case TARGET_NR_personality: 7007 ret = get_errno(personality(arg1)); 7008 break; 7009 #ifdef TARGET_NR_afs_syscall 7010 case TARGET_NR_afs_syscall: 7011 goto unimplemented; 7012 #endif 7013 #ifdef TARGET_NR__llseek /* Not on alpha */ 7014 case TARGET_NR__llseek: 7015 { 7016 int64_t res; 7017 #if !defined(__NR_llseek) 7018 res = lseek(arg1, ((uint64_t)arg2 << 32) | arg3, arg5); 7019 if (res == -1) { 7020 ret = get_errno(res); 7021 } else { 7022 ret = 0; 7023 } 7024 #else 7025 ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5)); 7026 #endif 7027 if ((ret == 0) && put_user_s64(res, arg4)) { 7028 goto efault; 7029 } 7030 } 7031 break; 7032 #endif 7033 case TARGET_NR_getdents: 7034 #ifdef __NR_getdents 7035 #if TARGET_ABI_BITS == 32 && HOST_LONG_BITS == 64 7036 { 7037 struct target_dirent *target_dirp; 7038 struct linux_dirent *dirp; 7039 abi_long count = arg3; 7040 7041 dirp = malloc(count); 7042 if (!dirp) { 7043 ret = -TARGET_ENOMEM; 7044 goto fail; 7045 } 7046 7047 ret = get_errno(sys_getdents(arg1, dirp, count)); 7048 if (!is_error(ret)) { 7049 struct linux_dirent *de; 7050 struct target_dirent *tde; 7051 int len = ret; 7052 int reclen, treclen; 7053 int count1, tnamelen; 7054 7055 count1 = 0; 7056 de = dirp; 7057 if (!(target_dirp = lock_user(VERIFY_WRITE, arg2, count, 0))) 7058 goto efault; 7059 tde = target_dirp; 7060 while (len > 0) { 7061 reclen = de->d_reclen; 7062 tnamelen = reclen - offsetof(struct linux_dirent, d_name); 7063 assert(tnamelen >= 0); 7064 treclen = tnamelen + offsetof(struct target_dirent, d_name); 7065 assert(count1 + treclen <= count); 7066 tde->d_reclen = tswap16(treclen); 7067 tde->d_ino = tswapal(de->d_ino); 7068 tde->d_off = tswapal(de->d_off); 7069 memcpy(tde->d_name, de->d_name, tnamelen); 7070 de = (struct linux_dirent *)((char *)de + reclen); 7071 len -= reclen; 7072 tde = (struct target_dirent *)((char *)tde + treclen); 7073 count1 += treclen; 7074 } 7075 ret = count1; 7076 unlock_user(target_dirp, arg2, ret); 7077 } 7078 free(dirp); 7079 } 7080 #else 7081 { 7082 struct linux_dirent *dirp; 7083 abi_long count = arg3; 7084 7085 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0))) 7086 goto efault; 7087 ret = get_errno(sys_getdents(arg1, dirp, count)); 7088 if (!is_error(ret)) { 7089 struct linux_dirent *de; 7090 int len = ret; 7091 int reclen; 7092 de = dirp; 7093 while (len > 0) { 7094 reclen = de->d_reclen; 7095 if (reclen > len) 7096 break; 7097 de->d_reclen = tswap16(reclen); 7098 tswapls(&de->d_ino); 7099 tswapls(&de->d_off); 7100 de = (struct linux_dirent *)((char *)de + reclen); 7101 len -= reclen; 7102 } 7103 } 7104 unlock_user(dirp, arg2, ret); 7105 } 7106 #endif 7107 #else 7108 /* Implement getdents in terms of getdents64 */ 7109 { 7110 struct linux_dirent64 *dirp; 7111 abi_long count = arg3; 7112 7113 dirp = lock_user(VERIFY_WRITE, arg2, count, 0); 7114 if (!dirp) { 7115 goto efault; 7116 } 7117 ret = get_errno(sys_getdents64(arg1, dirp, count)); 7118 if (!is_error(ret)) { 7119 /* Convert the dirent64 structs to target dirent. We do this 7120 * in-place, since we can guarantee that a target_dirent is no 7121 * larger than a dirent64; however this means we have to be 7122 * careful to read everything before writing in the new format. 7123 */ 7124 struct linux_dirent64 *de; 7125 struct target_dirent *tde; 7126 int len = ret; 7127 int tlen = 0; 7128 7129 de = dirp; 7130 tde = (struct target_dirent *)dirp; 7131 while (len > 0) { 7132 int namelen, treclen; 7133 int reclen = de->d_reclen; 7134 uint64_t ino = de->d_ino; 7135 int64_t off = de->d_off; 7136 uint8_t type = de->d_type; 7137 7138 namelen = strlen(de->d_name); 7139 treclen = offsetof(struct target_dirent, d_name) 7140 + namelen + 2; 7141 treclen = QEMU_ALIGN_UP(treclen, sizeof(abi_long)); 7142 7143 memmove(tde->d_name, de->d_name, namelen + 1); 7144 tde->d_ino = tswapal(ino); 7145 tde->d_off = tswapal(off); 7146 tde->d_reclen = tswap16(treclen); 7147 /* The target_dirent type is in what was formerly a padding 7148 * byte at the end of the structure: 7149 */ 7150 *(((char *)tde) + treclen - 1) = type; 7151 7152 de = (struct linux_dirent64 *)((char *)de + reclen); 7153 tde = (struct target_dirent *)((char *)tde + treclen); 7154 len -= reclen; 7155 tlen += treclen; 7156 } 7157 ret = tlen; 7158 } 7159 unlock_user(dirp, arg2, ret); 7160 } 7161 #endif 7162 break; 7163 #if defined(TARGET_NR_getdents64) && defined(__NR_getdents64) 7164 case TARGET_NR_getdents64: 7165 { 7166 struct linux_dirent64 *dirp; 7167 abi_long count = arg3; 7168 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0))) 7169 goto efault; 7170 ret = get_errno(sys_getdents64(arg1, dirp, count)); 7171 if (!is_error(ret)) { 7172 struct linux_dirent64 *de; 7173 int len = ret; 7174 int reclen; 7175 de = dirp; 7176 while (len > 0) { 7177 reclen = de->d_reclen; 7178 if (reclen > len) 7179 break; 7180 de->d_reclen = tswap16(reclen); 7181 tswap64s((uint64_t *)&de->d_ino); 7182 tswap64s((uint64_t *)&de->d_off); 7183 de = (struct linux_dirent64 *)((char *)de + reclen); 7184 len -= reclen; 7185 } 7186 } 7187 unlock_user(dirp, arg2, ret); 7188 } 7189 break; 7190 #endif /* TARGET_NR_getdents64 */ 7191 #if defined(TARGET_NR__newselect) 7192 case TARGET_NR__newselect: 7193 ret = do_select(arg1, arg2, arg3, arg4, arg5); 7194 break; 7195 #endif 7196 #if defined(TARGET_NR_poll) || defined(TARGET_NR_ppoll) 7197 # ifdef TARGET_NR_poll 7198 case TARGET_NR_poll: 7199 # endif 7200 # ifdef TARGET_NR_ppoll 7201 case TARGET_NR_ppoll: 7202 # endif 7203 { 7204 struct target_pollfd *target_pfd; 7205 unsigned int nfds = arg2; 7206 int timeout = arg3; 7207 struct pollfd *pfd; 7208 unsigned int i; 7209 7210 target_pfd = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_pollfd) * nfds, 1); 7211 if (!target_pfd) 7212 goto efault; 7213 7214 pfd = alloca(sizeof(struct pollfd) * nfds); 7215 for(i = 0; i < nfds; i++) { 7216 pfd[i].fd = tswap32(target_pfd[i].fd); 7217 pfd[i].events = tswap16(target_pfd[i].events); 7218 } 7219 7220 # ifdef TARGET_NR_ppoll 7221 if (num == TARGET_NR_ppoll) { 7222 struct timespec _timeout_ts, *timeout_ts = &_timeout_ts; 7223 target_sigset_t *target_set; 7224 sigset_t _set, *set = &_set; 7225 7226 if (arg3) { 7227 if (target_to_host_timespec(timeout_ts, arg3)) { 7228 unlock_user(target_pfd, arg1, 0); 7229 goto efault; 7230 } 7231 } else { 7232 timeout_ts = NULL; 7233 } 7234 7235 if (arg4) { 7236 target_set = lock_user(VERIFY_READ, arg4, sizeof(target_sigset_t), 1); 7237 if (!target_set) { 7238 unlock_user(target_pfd, arg1, 0); 7239 goto efault; 7240 } 7241 target_to_host_sigset(set, target_set); 7242 } else { 7243 set = NULL; 7244 } 7245 7246 ret = get_errno(sys_ppoll(pfd, nfds, timeout_ts, set, _NSIG/8)); 7247 7248 if (!is_error(ret) && arg3) { 7249 host_to_target_timespec(arg3, timeout_ts); 7250 } 7251 if (arg4) { 7252 unlock_user(target_set, arg4, 0); 7253 } 7254 } else 7255 # endif 7256 ret = get_errno(poll(pfd, nfds, timeout)); 7257 7258 if (!is_error(ret)) { 7259 for(i = 0; i < nfds; i++) { 7260 target_pfd[i].revents = tswap16(pfd[i].revents); 7261 } 7262 } 7263 unlock_user(target_pfd, arg1, sizeof(struct target_pollfd) * nfds); 7264 } 7265 break; 7266 #endif 7267 case TARGET_NR_flock: 7268 /* NOTE: the flock constant seems to be the same for every 7269 Linux platform */ 7270 ret = get_errno(flock(arg1, arg2)); 7271 break; 7272 case TARGET_NR_readv: 7273 { 7274 struct iovec *vec = lock_iovec(VERIFY_WRITE, arg2, arg3, 0); 7275 if (vec != NULL) { 7276 ret = get_errno(readv(arg1, vec, arg3)); 7277 unlock_iovec(vec, arg2, arg3, 1); 7278 } else { 7279 ret = -host_to_target_errno(errno); 7280 } 7281 } 7282 break; 7283 case TARGET_NR_writev: 7284 { 7285 struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1); 7286 if (vec != NULL) { 7287 ret = get_errno(writev(arg1, vec, arg3)); 7288 unlock_iovec(vec, arg2, arg3, 0); 7289 } else { 7290 ret = -host_to_target_errno(errno); 7291 } 7292 } 7293 break; 7294 case TARGET_NR_getsid: 7295 ret = get_errno(getsid(arg1)); 7296 break; 7297 #if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */ 7298 case TARGET_NR_fdatasync: 7299 ret = get_errno(fdatasync(arg1)); 7300 break; 7301 #endif 7302 case TARGET_NR__sysctl: 7303 /* We don't implement this, but ENOTDIR is always a safe 7304 return value. */ 7305 ret = -TARGET_ENOTDIR; 7306 break; 7307 case TARGET_NR_sched_getaffinity: 7308 { 7309 unsigned int mask_size; 7310 unsigned long *mask; 7311 7312 /* 7313 * sched_getaffinity needs multiples of ulong, so need to take 7314 * care of mismatches between target ulong and host ulong sizes. 7315 */ 7316 if (arg2 & (sizeof(abi_ulong) - 1)) { 7317 ret = -TARGET_EINVAL; 7318 break; 7319 } 7320 mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1); 7321 7322 mask = alloca(mask_size); 7323 ret = get_errno(sys_sched_getaffinity(arg1, mask_size, mask)); 7324 7325 if (!is_error(ret)) { 7326 if (copy_to_user(arg3, mask, ret)) { 7327 goto efault; 7328 } 7329 } 7330 } 7331 break; 7332 case TARGET_NR_sched_setaffinity: 7333 { 7334 unsigned int mask_size; 7335 unsigned long *mask; 7336 7337 /* 7338 * sched_setaffinity needs multiples of ulong, so need to take 7339 * care of mismatches between target ulong and host ulong sizes. 7340 */ 7341 if (arg2 & (sizeof(abi_ulong) - 1)) { 7342 ret = -TARGET_EINVAL; 7343 break; 7344 } 7345 mask_size = (arg2 + (sizeof(*mask) - 1)) & ~(sizeof(*mask) - 1); 7346 7347 mask = alloca(mask_size); 7348 if (!lock_user_struct(VERIFY_READ, p, arg3, 1)) { 7349 goto efault; 7350 } 7351 memcpy(mask, p, arg2); 7352 unlock_user_struct(p, arg2, 0); 7353 7354 ret = get_errno(sys_sched_setaffinity(arg1, mask_size, mask)); 7355 } 7356 break; 7357 case TARGET_NR_sched_setparam: 7358 { 7359 struct sched_param *target_schp; 7360 struct sched_param schp; 7361 7362 if (!lock_user_struct(VERIFY_READ, target_schp, arg2, 1)) 7363 goto efault; 7364 schp.sched_priority = tswap32(target_schp->sched_priority); 7365 unlock_user_struct(target_schp, arg2, 0); 7366 ret = get_errno(sched_setparam(arg1, &schp)); 7367 } 7368 break; 7369 case TARGET_NR_sched_getparam: 7370 { 7371 struct sched_param *target_schp; 7372 struct sched_param schp; 7373 ret = get_errno(sched_getparam(arg1, &schp)); 7374 if (!is_error(ret)) { 7375 if (!lock_user_struct(VERIFY_WRITE, target_schp, arg2, 0)) 7376 goto efault; 7377 target_schp->sched_priority = tswap32(schp.sched_priority); 7378 unlock_user_struct(target_schp, arg2, 1); 7379 } 7380 } 7381 break; 7382 case TARGET_NR_sched_setscheduler: 7383 { 7384 struct sched_param *target_schp; 7385 struct sched_param schp; 7386 if (!lock_user_struct(VERIFY_READ, target_schp, arg3, 1)) 7387 goto efault; 7388 schp.sched_priority = tswap32(target_schp->sched_priority); 7389 unlock_user_struct(target_schp, arg3, 0); 7390 ret = get_errno(sched_setscheduler(arg1, arg2, &schp)); 7391 } 7392 break; 7393 case TARGET_NR_sched_getscheduler: 7394 ret = get_errno(sched_getscheduler(arg1)); 7395 break; 7396 case TARGET_NR_sched_yield: 7397 ret = get_errno(sched_yield()); 7398 break; 7399 case TARGET_NR_sched_get_priority_max: 7400 ret = get_errno(sched_get_priority_max(arg1)); 7401 break; 7402 case TARGET_NR_sched_get_priority_min: 7403 ret = get_errno(sched_get_priority_min(arg1)); 7404 break; 7405 case TARGET_NR_sched_rr_get_interval: 7406 { 7407 struct timespec ts; 7408 ret = get_errno(sched_rr_get_interval(arg1, &ts)); 7409 if (!is_error(ret)) { 7410 host_to_target_timespec(arg2, &ts); 7411 } 7412 } 7413 break; 7414 case TARGET_NR_nanosleep: 7415 { 7416 struct timespec req, rem; 7417 target_to_host_timespec(&req, arg1); 7418 ret = get_errno(nanosleep(&req, &rem)); 7419 if (is_error(ret) && arg2) { 7420 host_to_target_timespec(arg2, &rem); 7421 } 7422 } 7423 break; 7424 #ifdef TARGET_NR_query_module 7425 case TARGET_NR_query_module: 7426 goto unimplemented; 7427 #endif 7428 #ifdef TARGET_NR_nfsservctl 7429 case TARGET_NR_nfsservctl: 7430 goto unimplemented; 7431 #endif 7432 case TARGET_NR_prctl: 7433 switch (arg1) { 7434 case PR_GET_PDEATHSIG: 7435 { 7436 int deathsig; 7437 ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5)); 7438 if (!is_error(ret) && arg2 7439 && put_user_ual(deathsig, arg2)) { 7440 goto efault; 7441 } 7442 break; 7443 } 7444 #ifdef PR_GET_NAME 7445 case PR_GET_NAME: 7446 { 7447 void *name = lock_user(VERIFY_WRITE, arg2, 16, 1); 7448 if (!name) { 7449 goto efault; 7450 } 7451 ret = get_errno(prctl(arg1, (unsigned long)name, 7452 arg3, arg4, arg5)); 7453 unlock_user(name, arg2, 16); 7454 break; 7455 } 7456 case PR_SET_NAME: 7457 { 7458 void *name = lock_user(VERIFY_READ, arg2, 16, 1); 7459 if (!name) { 7460 goto efault; 7461 } 7462 ret = get_errno(prctl(arg1, (unsigned long)name, 7463 arg3, arg4, arg5)); 7464 unlock_user(name, arg2, 0); 7465 break; 7466 } 7467 #endif 7468 default: 7469 /* Most prctl options have no pointer arguments */ 7470 ret = get_errno(prctl(arg1, arg2, arg3, arg4, arg5)); 7471 break; 7472 } 7473 break; 7474 #ifdef TARGET_NR_arch_prctl 7475 case TARGET_NR_arch_prctl: 7476 #if defined(TARGET_I386) && !defined(TARGET_ABI32) 7477 ret = do_arch_prctl(cpu_env, arg1, arg2); 7478 break; 7479 #else 7480 goto unimplemented; 7481 #endif 7482 #endif 7483 #ifdef TARGET_NR_pread64 7484 case TARGET_NR_pread64: 7485 if (regpairs_aligned(cpu_env)) { 7486 arg4 = arg5; 7487 arg5 = arg6; 7488 } 7489 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0))) 7490 goto efault; 7491 ret = get_errno(pread64(arg1, p, arg3, target_offset64(arg4, arg5))); 7492 unlock_user(p, arg2, ret); 7493 break; 7494 case TARGET_NR_pwrite64: 7495 if (regpairs_aligned(cpu_env)) { 7496 arg4 = arg5; 7497 arg5 = arg6; 7498 } 7499 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1))) 7500 goto efault; 7501 ret = get_errno(pwrite64(arg1, p, arg3, target_offset64(arg4, arg5))); 7502 unlock_user(p, arg2, 0); 7503 break; 7504 #endif 7505 case TARGET_NR_getcwd: 7506 if (!(p = lock_user(VERIFY_WRITE, arg1, arg2, 0))) 7507 goto efault; 7508 ret = get_errno(sys_getcwd1(p, arg2)); 7509 unlock_user(p, arg1, ret); 7510 break; 7511 case TARGET_NR_capget: 7512 goto unimplemented; 7513 case TARGET_NR_capset: 7514 goto unimplemented; 7515 case TARGET_NR_sigaltstack: 7516 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_MIPS) || \ 7517 defined(TARGET_SPARC) || defined(TARGET_PPC) || defined(TARGET_ALPHA) || \ 7518 defined(TARGET_M68K) || defined(TARGET_S390X) || defined(TARGET_OPENRISC) 7519 ret = do_sigaltstack(arg1, arg2, get_sp_from_cpustate((CPUArchState *)cpu_env)); 7520 break; 7521 #else 7522 goto unimplemented; 7523 #endif 7524 7525 #ifdef CONFIG_SENDFILE 7526 case TARGET_NR_sendfile: 7527 { 7528 off_t *offp = NULL; 7529 off_t off; 7530 if (arg3) { 7531 ret = get_user_sal(off, arg3); 7532 if (is_error(ret)) { 7533 break; 7534 } 7535 offp = &off; 7536 } 7537 ret = get_errno(sendfile(arg1, arg2, offp, arg4)); 7538 if (!is_error(ret) && arg3) { 7539 abi_long ret2 = put_user_sal(off, arg3); 7540 if (is_error(ret2)) { 7541 ret = ret2; 7542 } 7543 } 7544 break; 7545 } 7546 #ifdef TARGET_NR_sendfile64 7547 case TARGET_NR_sendfile64: 7548 { 7549 off_t *offp = NULL; 7550 off_t off; 7551 if (arg3) { 7552 ret = get_user_s64(off, arg3); 7553 if (is_error(ret)) { 7554 break; 7555 } 7556 offp = &off; 7557 } 7558 ret = get_errno(sendfile(arg1, arg2, offp, arg4)); 7559 if (!is_error(ret) && arg3) { 7560 abi_long ret2 = put_user_s64(off, arg3); 7561 if (is_error(ret2)) { 7562 ret = ret2; 7563 } 7564 } 7565 break; 7566 } 7567 #endif 7568 #else 7569 case TARGET_NR_sendfile: 7570 #ifdef TARGET_NR_sendfile64 7571 case TARGET_NR_sendfile64: 7572 #endif 7573 goto unimplemented; 7574 #endif 7575 7576 #ifdef TARGET_NR_getpmsg 7577 case TARGET_NR_getpmsg: 7578 goto unimplemented; 7579 #endif 7580 #ifdef TARGET_NR_putpmsg 7581 case TARGET_NR_putpmsg: 7582 goto unimplemented; 7583 #endif 7584 #ifdef TARGET_NR_vfork 7585 case TARGET_NR_vfork: 7586 ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 7587 0, 0, 0, 0)); 7588 break; 7589 #endif 7590 #ifdef TARGET_NR_ugetrlimit 7591 case TARGET_NR_ugetrlimit: 7592 { 7593 struct rlimit rlim; 7594 int resource = target_to_host_resource(arg1); 7595 ret = get_errno(getrlimit(resource, &rlim)); 7596 if (!is_error(ret)) { 7597 struct target_rlimit *target_rlim; 7598 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0)) 7599 goto efault; 7600 target_rlim->rlim_cur = host_to_target_rlim(rlim.rlim_cur); 7601 target_rlim->rlim_max = host_to_target_rlim(rlim.rlim_max); 7602 unlock_user_struct(target_rlim, arg2, 1); 7603 } 7604 break; 7605 } 7606 #endif 7607 #ifdef TARGET_NR_truncate64 7608 case TARGET_NR_truncate64: 7609 if (!(p = lock_user_string(arg1))) 7610 goto efault; 7611 ret = target_truncate64(cpu_env, p, arg2, arg3, arg4); 7612 unlock_user(p, arg1, 0); 7613 break; 7614 #endif 7615 #ifdef TARGET_NR_ftruncate64 7616 case TARGET_NR_ftruncate64: 7617 ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4); 7618 break; 7619 #endif 7620 #ifdef TARGET_NR_stat64 7621 case TARGET_NR_stat64: 7622 if (!(p = lock_user_string(arg1))) 7623 goto efault; 7624 ret = get_errno(stat(path(p), &st)); 7625 unlock_user(p, arg1, 0); 7626 if (!is_error(ret)) 7627 ret = host_to_target_stat64(cpu_env, arg2, &st); 7628 break; 7629 #endif 7630 #ifdef TARGET_NR_lstat64 7631 case TARGET_NR_lstat64: 7632 if (!(p = lock_user_string(arg1))) 7633 goto efault; 7634 ret = get_errno(lstat(path(p), &st)); 7635 unlock_user(p, arg1, 0); 7636 if (!is_error(ret)) 7637 ret = host_to_target_stat64(cpu_env, arg2, &st); 7638 break; 7639 #endif 7640 #ifdef TARGET_NR_fstat64 7641 case TARGET_NR_fstat64: 7642 ret = get_errno(fstat(arg1, &st)); 7643 if (!is_error(ret)) 7644 ret = host_to_target_stat64(cpu_env, arg2, &st); 7645 break; 7646 #endif 7647 #if (defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat)) 7648 #ifdef TARGET_NR_fstatat64 7649 case TARGET_NR_fstatat64: 7650 #endif 7651 #ifdef TARGET_NR_newfstatat 7652 case TARGET_NR_newfstatat: 7653 #endif 7654 if (!(p = lock_user_string(arg2))) 7655 goto efault; 7656 ret = get_errno(fstatat(arg1, path(p), &st, arg4)); 7657 if (!is_error(ret)) 7658 ret = host_to_target_stat64(cpu_env, arg3, &st); 7659 break; 7660 #endif 7661 case TARGET_NR_lchown: 7662 if (!(p = lock_user_string(arg1))) 7663 goto efault; 7664 ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3))); 7665 unlock_user(p, arg1, 0); 7666 break; 7667 #ifdef TARGET_NR_getuid 7668 case TARGET_NR_getuid: 7669 ret = get_errno(high2lowuid(getuid())); 7670 break; 7671 #endif 7672 #ifdef TARGET_NR_getgid 7673 case TARGET_NR_getgid: 7674 ret = get_errno(high2lowgid(getgid())); 7675 break; 7676 #endif 7677 #ifdef TARGET_NR_geteuid 7678 case TARGET_NR_geteuid: 7679 ret = get_errno(high2lowuid(geteuid())); 7680 break; 7681 #endif 7682 #ifdef TARGET_NR_getegid 7683 case TARGET_NR_getegid: 7684 ret = get_errno(high2lowgid(getegid())); 7685 break; 7686 #endif 7687 case TARGET_NR_setreuid: 7688 ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2))); 7689 break; 7690 case TARGET_NR_setregid: 7691 ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2))); 7692 break; 7693 case TARGET_NR_getgroups: 7694 { 7695 int gidsetsize = arg1; 7696 target_id *target_grouplist; 7697 gid_t *grouplist; 7698 int i; 7699 7700 grouplist = alloca(gidsetsize * sizeof(gid_t)); 7701 ret = get_errno(getgroups(gidsetsize, grouplist)); 7702 if (gidsetsize == 0) 7703 break; 7704 if (!is_error(ret)) { 7705 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * sizeof(target_id), 0); 7706 if (!target_grouplist) 7707 goto efault; 7708 for(i = 0;i < ret; i++) 7709 target_grouplist[i] = tswapid(high2lowgid(grouplist[i])); 7710 unlock_user(target_grouplist, arg2, gidsetsize * sizeof(target_id)); 7711 } 7712 } 7713 break; 7714 case TARGET_NR_setgroups: 7715 { 7716 int gidsetsize = arg1; 7717 target_id *target_grouplist; 7718 gid_t *grouplist = NULL; 7719 int i; 7720 if (gidsetsize) { 7721 grouplist = alloca(gidsetsize * sizeof(gid_t)); 7722 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * sizeof(target_id), 1); 7723 if (!target_grouplist) { 7724 ret = -TARGET_EFAULT; 7725 goto fail; 7726 } 7727 for (i = 0; i < gidsetsize; i++) { 7728 grouplist[i] = low2highgid(tswapid(target_grouplist[i])); 7729 } 7730 unlock_user(target_grouplist, arg2, 0); 7731 } 7732 ret = get_errno(setgroups(gidsetsize, grouplist)); 7733 } 7734 break; 7735 case TARGET_NR_fchown: 7736 ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3))); 7737 break; 7738 #if defined(TARGET_NR_fchownat) 7739 case TARGET_NR_fchownat: 7740 if (!(p = lock_user_string(arg2))) 7741 goto efault; 7742 ret = get_errno(fchownat(arg1, p, low2highuid(arg3), 7743 low2highgid(arg4), arg5)); 7744 unlock_user(p, arg2, 0); 7745 break; 7746 #endif 7747 #ifdef TARGET_NR_setresuid 7748 case TARGET_NR_setresuid: 7749 ret = get_errno(setresuid(low2highuid(arg1), 7750 low2highuid(arg2), 7751 low2highuid(arg3))); 7752 break; 7753 #endif 7754 #ifdef TARGET_NR_getresuid 7755 case TARGET_NR_getresuid: 7756 { 7757 uid_t ruid, euid, suid; 7758 ret = get_errno(getresuid(&ruid, &euid, &suid)); 7759 if (!is_error(ret)) { 7760 if (put_user_u16(high2lowuid(ruid), arg1) 7761 || put_user_u16(high2lowuid(euid), arg2) 7762 || put_user_u16(high2lowuid(suid), arg3)) 7763 goto efault; 7764 } 7765 } 7766 break; 7767 #endif 7768 #ifdef TARGET_NR_getresgid 7769 case TARGET_NR_setresgid: 7770 ret = get_errno(setresgid(low2highgid(arg1), 7771 low2highgid(arg2), 7772 low2highgid(arg3))); 7773 break; 7774 #endif 7775 #ifdef TARGET_NR_getresgid 7776 case TARGET_NR_getresgid: 7777 { 7778 gid_t rgid, egid, sgid; 7779 ret = get_errno(getresgid(&rgid, &egid, &sgid)); 7780 if (!is_error(ret)) { 7781 if (put_user_u16(high2lowgid(rgid), arg1) 7782 || put_user_u16(high2lowgid(egid), arg2) 7783 || put_user_u16(high2lowgid(sgid), arg3)) 7784 goto efault; 7785 } 7786 } 7787 break; 7788 #endif 7789 case TARGET_NR_chown: 7790 if (!(p = lock_user_string(arg1))) 7791 goto efault; 7792 ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3))); 7793 unlock_user(p, arg1, 0); 7794 break; 7795 case TARGET_NR_setuid: 7796 ret = get_errno(setuid(low2highuid(arg1))); 7797 break; 7798 case TARGET_NR_setgid: 7799 ret = get_errno(setgid(low2highgid(arg1))); 7800 break; 7801 case TARGET_NR_setfsuid: 7802 ret = get_errno(setfsuid(arg1)); 7803 break; 7804 case TARGET_NR_setfsgid: 7805 ret = get_errno(setfsgid(arg1)); 7806 break; 7807 7808 #ifdef TARGET_NR_lchown32 7809 case TARGET_NR_lchown32: 7810 if (!(p = lock_user_string(arg1))) 7811 goto efault; 7812 ret = get_errno(lchown(p, arg2, arg3)); 7813 unlock_user(p, arg1, 0); 7814 break; 7815 #endif 7816 #ifdef TARGET_NR_getuid32 7817 case TARGET_NR_getuid32: 7818 ret = get_errno(getuid()); 7819 break; 7820 #endif 7821 7822 #if defined(TARGET_NR_getxuid) && defined(TARGET_ALPHA) 7823 /* Alpha specific */ 7824 case TARGET_NR_getxuid: 7825 { 7826 uid_t euid; 7827 euid=geteuid(); 7828 ((CPUAlphaState *)cpu_env)->ir[IR_A4]=euid; 7829 } 7830 ret = get_errno(getuid()); 7831 break; 7832 #endif 7833 #if defined(TARGET_NR_getxgid) && defined(TARGET_ALPHA) 7834 /* Alpha specific */ 7835 case TARGET_NR_getxgid: 7836 { 7837 uid_t egid; 7838 egid=getegid(); 7839 ((CPUAlphaState *)cpu_env)->ir[IR_A4]=egid; 7840 } 7841 ret = get_errno(getgid()); 7842 break; 7843 #endif 7844 #if defined(TARGET_NR_osf_getsysinfo) && defined(TARGET_ALPHA) 7845 /* Alpha specific */ 7846 case TARGET_NR_osf_getsysinfo: 7847 ret = -TARGET_EOPNOTSUPP; 7848 switch (arg1) { 7849 case TARGET_GSI_IEEE_FP_CONTROL: 7850 { 7851 uint64_t swcr, fpcr = cpu_alpha_load_fpcr (cpu_env); 7852 7853 /* Copied from linux ieee_fpcr_to_swcr. */ 7854 swcr = (fpcr >> 35) & SWCR_STATUS_MASK; 7855 swcr |= (fpcr >> 36) & SWCR_MAP_DMZ; 7856 swcr |= (~fpcr >> 48) & (SWCR_TRAP_ENABLE_INV 7857 | SWCR_TRAP_ENABLE_DZE 7858 | SWCR_TRAP_ENABLE_OVF); 7859 swcr |= (~fpcr >> 57) & (SWCR_TRAP_ENABLE_UNF 7860 | SWCR_TRAP_ENABLE_INE); 7861 swcr |= (fpcr >> 47) & SWCR_MAP_UMZ; 7862 swcr |= (~fpcr >> 41) & SWCR_TRAP_ENABLE_DNO; 7863 7864 if (put_user_u64 (swcr, arg2)) 7865 goto efault; 7866 ret = 0; 7867 } 7868 break; 7869 7870 /* case GSI_IEEE_STATE_AT_SIGNAL: 7871 -- Not implemented in linux kernel. 7872 case GSI_UACPROC: 7873 -- Retrieves current unaligned access state; not much used. 7874 case GSI_PROC_TYPE: 7875 -- Retrieves implver information; surely not used. 7876 case GSI_GET_HWRPB: 7877 -- Grabs a copy of the HWRPB; surely not used. 7878 */ 7879 } 7880 break; 7881 #endif 7882 #if defined(TARGET_NR_osf_setsysinfo) && defined(TARGET_ALPHA) 7883 /* Alpha specific */ 7884 case TARGET_NR_osf_setsysinfo: 7885 ret = -TARGET_EOPNOTSUPP; 7886 switch (arg1) { 7887 case TARGET_SSI_IEEE_FP_CONTROL: 7888 { 7889 uint64_t swcr, fpcr, orig_fpcr; 7890 7891 if (get_user_u64 (swcr, arg2)) { 7892 goto efault; 7893 } 7894 orig_fpcr = cpu_alpha_load_fpcr(cpu_env); 7895 fpcr = orig_fpcr & FPCR_DYN_MASK; 7896 7897 /* Copied from linux ieee_swcr_to_fpcr. */ 7898 fpcr |= (swcr & SWCR_STATUS_MASK) << 35; 7899 fpcr |= (swcr & SWCR_MAP_DMZ) << 36; 7900 fpcr |= (~swcr & (SWCR_TRAP_ENABLE_INV 7901 | SWCR_TRAP_ENABLE_DZE 7902 | SWCR_TRAP_ENABLE_OVF)) << 48; 7903 fpcr |= (~swcr & (SWCR_TRAP_ENABLE_UNF 7904 | SWCR_TRAP_ENABLE_INE)) << 57; 7905 fpcr |= (swcr & SWCR_MAP_UMZ ? FPCR_UNDZ | FPCR_UNFD : 0); 7906 fpcr |= (~swcr & SWCR_TRAP_ENABLE_DNO) << 41; 7907 7908 cpu_alpha_store_fpcr(cpu_env, fpcr); 7909 ret = 0; 7910 } 7911 break; 7912 7913 case TARGET_SSI_IEEE_RAISE_EXCEPTION: 7914 { 7915 uint64_t exc, fpcr, orig_fpcr; 7916 int si_code; 7917 7918 if (get_user_u64(exc, arg2)) { 7919 goto efault; 7920 } 7921 7922 orig_fpcr = cpu_alpha_load_fpcr(cpu_env); 7923 7924 /* We only add to the exception status here. */ 7925 fpcr = orig_fpcr | ((exc & SWCR_STATUS_MASK) << 35); 7926 7927 cpu_alpha_store_fpcr(cpu_env, fpcr); 7928 ret = 0; 7929 7930 /* Old exceptions are not signaled. */ 7931 fpcr &= ~(orig_fpcr & FPCR_STATUS_MASK); 7932 7933 /* If any exceptions set by this call, 7934 and are unmasked, send a signal. */ 7935 si_code = 0; 7936 if ((fpcr & (FPCR_INE | FPCR_INED)) == FPCR_INE) { 7937 si_code = TARGET_FPE_FLTRES; 7938 } 7939 if ((fpcr & (FPCR_UNF | FPCR_UNFD)) == FPCR_UNF) { 7940 si_code = TARGET_FPE_FLTUND; 7941 } 7942 if ((fpcr & (FPCR_OVF | FPCR_OVFD)) == FPCR_OVF) { 7943 si_code = TARGET_FPE_FLTOVF; 7944 } 7945 if ((fpcr & (FPCR_DZE | FPCR_DZED)) == FPCR_DZE) { 7946 si_code = TARGET_FPE_FLTDIV; 7947 } 7948 if ((fpcr & (FPCR_INV | FPCR_INVD)) == FPCR_INV) { 7949 si_code = TARGET_FPE_FLTINV; 7950 } 7951 if (si_code != 0) { 7952 target_siginfo_t info; 7953 info.si_signo = SIGFPE; 7954 info.si_errno = 0; 7955 info.si_code = si_code; 7956 info._sifields._sigfault._addr 7957 = ((CPUArchState *)cpu_env)->pc; 7958 queue_signal((CPUArchState *)cpu_env, info.si_signo, &info); 7959 } 7960 } 7961 break; 7962 7963 /* case SSI_NVPAIRS: 7964 -- Used with SSIN_UACPROC to enable unaligned accesses. 7965 case SSI_IEEE_STATE_AT_SIGNAL: 7966 case SSI_IEEE_IGNORE_STATE_AT_SIGNAL: 7967 -- Not implemented in linux kernel 7968 */ 7969 } 7970 break; 7971 #endif 7972 #ifdef TARGET_NR_osf_sigprocmask 7973 /* Alpha specific. */ 7974 case TARGET_NR_osf_sigprocmask: 7975 { 7976 abi_ulong mask; 7977 int how; 7978 sigset_t set, oldset; 7979 7980 switch(arg1) { 7981 case TARGET_SIG_BLOCK: 7982 how = SIG_BLOCK; 7983 break; 7984 case TARGET_SIG_UNBLOCK: 7985 how = SIG_UNBLOCK; 7986 break; 7987 case TARGET_SIG_SETMASK: 7988 how = SIG_SETMASK; 7989 break; 7990 default: 7991 ret = -TARGET_EINVAL; 7992 goto fail; 7993 } 7994 mask = arg2; 7995 target_to_host_old_sigset(&set, &mask); 7996 sigprocmask(how, &set, &oldset); 7997 host_to_target_old_sigset(&mask, &oldset); 7998 ret = mask; 7999 } 8000 break; 8001 #endif 8002 8003 #ifdef TARGET_NR_getgid32 8004 case TARGET_NR_getgid32: 8005 ret = get_errno(getgid()); 8006 break; 8007 #endif 8008 #ifdef TARGET_NR_geteuid32 8009 case TARGET_NR_geteuid32: 8010 ret = get_errno(geteuid()); 8011 break; 8012 #endif 8013 #ifdef TARGET_NR_getegid32 8014 case TARGET_NR_getegid32: 8015 ret = get_errno(getegid()); 8016 break; 8017 #endif 8018 #ifdef TARGET_NR_setreuid32 8019 case TARGET_NR_setreuid32: 8020 ret = get_errno(setreuid(arg1, arg2)); 8021 break; 8022 #endif 8023 #ifdef TARGET_NR_setregid32 8024 case TARGET_NR_setregid32: 8025 ret = get_errno(setregid(arg1, arg2)); 8026 break; 8027 #endif 8028 #ifdef TARGET_NR_getgroups32 8029 case TARGET_NR_getgroups32: 8030 { 8031 int gidsetsize = arg1; 8032 uint32_t *target_grouplist; 8033 gid_t *grouplist; 8034 int i; 8035 8036 grouplist = alloca(gidsetsize * sizeof(gid_t)); 8037 ret = get_errno(getgroups(gidsetsize, grouplist)); 8038 if (gidsetsize == 0) 8039 break; 8040 if (!is_error(ret)) { 8041 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 4, 0); 8042 if (!target_grouplist) { 8043 ret = -TARGET_EFAULT; 8044 goto fail; 8045 } 8046 for(i = 0;i < ret; i++) 8047 target_grouplist[i] = tswap32(grouplist[i]); 8048 unlock_user(target_grouplist, arg2, gidsetsize * 4); 8049 } 8050 } 8051 break; 8052 #endif 8053 #ifdef TARGET_NR_setgroups32 8054 case TARGET_NR_setgroups32: 8055 { 8056 int gidsetsize = arg1; 8057 uint32_t *target_grouplist; 8058 gid_t *grouplist; 8059 int i; 8060 8061 grouplist = alloca(gidsetsize * sizeof(gid_t)); 8062 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 4, 1); 8063 if (!target_grouplist) { 8064 ret = -TARGET_EFAULT; 8065 goto fail; 8066 } 8067 for(i = 0;i < gidsetsize; i++) 8068 grouplist[i] = tswap32(target_grouplist[i]); 8069 unlock_user(target_grouplist, arg2, 0); 8070 ret = get_errno(setgroups(gidsetsize, grouplist)); 8071 } 8072 break; 8073 #endif 8074 #ifdef TARGET_NR_fchown32 8075 case TARGET_NR_fchown32: 8076 ret = get_errno(fchown(arg1, arg2, arg3)); 8077 break; 8078 #endif 8079 #ifdef TARGET_NR_setresuid32 8080 case TARGET_NR_setresuid32: 8081 ret = get_errno(setresuid(arg1, arg2, arg3)); 8082 break; 8083 #endif 8084 #ifdef TARGET_NR_getresuid32 8085 case TARGET_NR_getresuid32: 8086 { 8087 uid_t ruid, euid, suid; 8088 ret = get_errno(getresuid(&ruid, &euid, &suid)); 8089 if (!is_error(ret)) { 8090 if (put_user_u32(ruid, arg1) 8091 || put_user_u32(euid, arg2) 8092 || put_user_u32(suid, arg3)) 8093 goto efault; 8094 } 8095 } 8096 break; 8097 #endif 8098 #ifdef TARGET_NR_setresgid32 8099 case TARGET_NR_setresgid32: 8100 ret = get_errno(setresgid(arg1, arg2, arg3)); 8101 break; 8102 #endif 8103 #ifdef TARGET_NR_getresgid32 8104 case TARGET_NR_getresgid32: 8105 { 8106 gid_t rgid, egid, sgid; 8107 ret = get_errno(getresgid(&rgid, &egid, &sgid)); 8108 if (!is_error(ret)) { 8109 if (put_user_u32(rgid, arg1) 8110 || put_user_u32(egid, arg2) 8111 || put_user_u32(sgid, arg3)) 8112 goto efault; 8113 } 8114 } 8115 break; 8116 #endif 8117 #ifdef TARGET_NR_chown32 8118 case TARGET_NR_chown32: 8119 if (!(p = lock_user_string(arg1))) 8120 goto efault; 8121 ret = get_errno(chown(p, arg2, arg3)); 8122 unlock_user(p, arg1, 0); 8123 break; 8124 #endif 8125 #ifdef TARGET_NR_setuid32 8126 case TARGET_NR_setuid32: 8127 ret = get_errno(setuid(arg1)); 8128 break; 8129 #endif 8130 #ifdef TARGET_NR_setgid32 8131 case TARGET_NR_setgid32: 8132 ret = get_errno(setgid(arg1)); 8133 break; 8134 #endif 8135 #ifdef TARGET_NR_setfsuid32 8136 case TARGET_NR_setfsuid32: 8137 ret = get_errno(setfsuid(arg1)); 8138 break; 8139 #endif 8140 #ifdef TARGET_NR_setfsgid32 8141 case TARGET_NR_setfsgid32: 8142 ret = get_errno(setfsgid(arg1)); 8143 break; 8144 #endif 8145 8146 case TARGET_NR_pivot_root: 8147 goto unimplemented; 8148 #ifdef TARGET_NR_mincore 8149 case TARGET_NR_mincore: 8150 { 8151 void *a; 8152 ret = -TARGET_EFAULT; 8153 if (!(a = lock_user(VERIFY_READ, arg1,arg2, 0))) 8154 goto efault; 8155 if (!(p = lock_user_string(arg3))) 8156 goto mincore_fail; 8157 ret = get_errno(mincore(a, arg2, p)); 8158 unlock_user(p, arg3, ret); 8159 mincore_fail: 8160 unlock_user(a, arg1, 0); 8161 } 8162 break; 8163 #endif 8164 #ifdef TARGET_NR_arm_fadvise64_64 8165 case TARGET_NR_arm_fadvise64_64: 8166 { 8167 /* 8168 * arm_fadvise64_64 looks like fadvise64_64 but 8169 * with different argument order 8170 */ 8171 abi_long temp; 8172 temp = arg3; 8173 arg3 = arg4; 8174 arg4 = temp; 8175 } 8176 #endif 8177 #if defined(TARGET_NR_fadvise64_64) || defined(TARGET_NR_arm_fadvise64_64) || defined(TARGET_NR_fadvise64) 8178 #ifdef TARGET_NR_fadvise64_64 8179 case TARGET_NR_fadvise64_64: 8180 #endif 8181 #ifdef TARGET_NR_fadvise64 8182 case TARGET_NR_fadvise64: 8183 #endif 8184 #ifdef TARGET_S390X 8185 switch (arg4) { 8186 case 4: arg4 = POSIX_FADV_NOREUSE + 1; break; /* make sure it's an invalid value */ 8187 case 5: arg4 = POSIX_FADV_NOREUSE + 2; break; /* ditto */ 8188 case 6: arg4 = POSIX_FADV_DONTNEED; break; 8189 case 7: arg4 = POSIX_FADV_NOREUSE; break; 8190 default: break; 8191 } 8192 #endif 8193 ret = -posix_fadvise(arg1, arg2, arg3, arg4); 8194 break; 8195 #endif 8196 #ifdef TARGET_NR_madvise 8197 case TARGET_NR_madvise: 8198 /* A straight passthrough may not be safe because qemu sometimes 8199 turns private file-backed mappings into anonymous mappings. 8200 This will break MADV_DONTNEED. 8201 This is a hint, so ignoring and returning success is ok. */ 8202 ret = get_errno(0); 8203 break; 8204 #endif 8205 #if TARGET_ABI_BITS == 32 8206 case TARGET_NR_fcntl64: 8207 { 8208 int cmd; 8209 struct flock64 fl; 8210 struct target_flock64 *target_fl; 8211 #ifdef TARGET_ARM 8212 struct target_eabi_flock64 *target_efl; 8213 #endif 8214 8215 cmd = target_to_host_fcntl_cmd(arg2); 8216 if (cmd == -TARGET_EINVAL) { 8217 ret = cmd; 8218 break; 8219 } 8220 8221 switch(arg2) { 8222 case TARGET_F_GETLK64: 8223 #ifdef TARGET_ARM 8224 if (((CPUARMState *)cpu_env)->eabi) { 8225 if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1)) 8226 goto efault; 8227 fl.l_type = tswap16(target_efl->l_type); 8228 fl.l_whence = tswap16(target_efl->l_whence); 8229 fl.l_start = tswap64(target_efl->l_start); 8230 fl.l_len = tswap64(target_efl->l_len); 8231 fl.l_pid = tswap32(target_efl->l_pid); 8232 unlock_user_struct(target_efl, arg3, 0); 8233 } else 8234 #endif 8235 { 8236 if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1)) 8237 goto efault; 8238 fl.l_type = tswap16(target_fl->l_type); 8239 fl.l_whence = tswap16(target_fl->l_whence); 8240 fl.l_start = tswap64(target_fl->l_start); 8241 fl.l_len = tswap64(target_fl->l_len); 8242 fl.l_pid = tswap32(target_fl->l_pid); 8243 unlock_user_struct(target_fl, arg3, 0); 8244 } 8245 ret = get_errno(fcntl(arg1, cmd, &fl)); 8246 if (ret == 0) { 8247 #ifdef TARGET_ARM 8248 if (((CPUARMState *)cpu_env)->eabi) { 8249 if (!lock_user_struct(VERIFY_WRITE, target_efl, arg3, 0)) 8250 goto efault; 8251 target_efl->l_type = tswap16(fl.l_type); 8252 target_efl->l_whence = tswap16(fl.l_whence); 8253 target_efl->l_start = tswap64(fl.l_start); 8254 target_efl->l_len = tswap64(fl.l_len); 8255 target_efl->l_pid = tswap32(fl.l_pid); 8256 unlock_user_struct(target_efl, arg3, 1); 8257 } else 8258 #endif 8259 { 8260 if (!lock_user_struct(VERIFY_WRITE, target_fl, arg3, 0)) 8261 goto efault; 8262 target_fl->l_type = tswap16(fl.l_type); 8263 target_fl->l_whence = tswap16(fl.l_whence); 8264 target_fl->l_start = tswap64(fl.l_start); 8265 target_fl->l_len = tswap64(fl.l_len); 8266 target_fl->l_pid = tswap32(fl.l_pid); 8267 unlock_user_struct(target_fl, arg3, 1); 8268 } 8269 } 8270 break; 8271 8272 case TARGET_F_SETLK64: 8273 case TARGET_F_SETLKW64: 8274 #ifdef TARGET_ARM 8275 if (((CPUARMState *)cpu_env)->eabi) { 8276 if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1)) 8277 goto efault; 8278 fl.l_type = tswap16(target_efl->l_type); 8279 fl.l_whence = tswap16(target_efl->l_whence); 8280 fl.l_start = tswap64(target_efl->l_start); 8281 fl.l_len = tswap64(target_efl->l_len); 8282 fl.l_pid = tswap32(target_efl->l_pid); 8283 unlock_user_struct(target_efl, arg3, 0); 8284 } else 8285 #endif 8286 { 8287 if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1)) 8288 goto efault; 8289 fl.l_type = tswap16(target_fl->l_type); 8290 fl.l_whence = tswap16(target_fl->l_whence); 8291 fl.l_start = tswap64(target_fl->l_start); 8292 fl.l_len = tswap64(target_fl->l_len); 8293 fl.l_pid = tswap32(target_fl->l_pid); 8294 unlock_user_struct(target_fl, arg3, 0); 8295 } 8296 ret = get_errno(fcntl(arg1, cmd, &fl)); 8297 break; 8298 default: 8299 ret = do_fcntl(arg1, arg2, arg3); 8300 break; 8301 } 8302 break; 8303 } 8304 #endif 8305 #ifdef TARGET_NR_cacheflush 8306 case TARGET_NR_cacheflush: 8307 /* self-modifying code is handled automatically, so nothing needed */ 8308 ret = 0; 8309 break; 8310 #endif 8311 #ifdef TARGET_NR_security 8312 case TARGET_NR_security: 8313 goto unimplemented; 8314 #endif 8315 #ifdef TARGET_NR_getpagesize 8316 case TARGET_NR_getpagesize: 8317 ret = TARGET_PAGE_SIZE; 8318 break; 8319 #endif 8320 case TARGET_NR_gettid: 8321 ret = get_errno(gettid()); 8322 break; 8323 #ifdef TARGET_NR_readahead 8324 case TARGET_NR_readahead: 8325 #if TARGET_ABI_BITS == 32 8326 if (regpairs_aligned(cpu_env)) { 8327 arg2 = arg3; 8328 arg3 = arg4; 8329 arg4 = arg5; 8330 } 8331 ret = get_errno(readahead(arg1, ((off64_t)arg3 << 32) | arg2, arg4)); 8332 #else 8333 ret = get_errno(readahead(arg1, arg2, arg3)); 8334 #endif 8335 break; 8336 #endif 8337 #ifdef CONFIG_ATTR 8338 #ifdef TARGET_NR_setxattr 8339 case TARGET_NR_listxattr: 8340 case TARGET_NR_llistxattr: 8341 { 8342 void *p, *b = 0; 8343 if (arg2) { 8344 b = lock_user(VERIFY_WRITE, arg2, arg3, 0); 8345 if (!b) { 8346 ret = -TARGET_EFAULT; 8347 break; 8348 } 8349 } 8350 p = lock_user_string(arg1); 8351 if (p) { 8352 if (num == TARGET_NR_listxattr) { 8353 ret = get_errno(listxattr(p, b, arg3)); 8354 } else { 8355 ret = get_errno(llistxattr(p, b, arg3)); 8356 } 8357 } else { 8358 ret = -TARGET_EFAULT; 8359 } 8360 unlock_user(p, arg1, 0); 8361 unlock_user(b, arg2, arg3); 8362 break; 8363 } 8364 case TARGET_NR_flistxattr: 8365 { 8366 void *b = 0; 8367 if (arg2) { 8368 b = lock_user(VERIFY_WRITE, arg2, arg3, 0); 8369 if (!b) { 8370 ret = -TARGET_EFAULT; 8371 break; 8372 } 8373 } 8374 ret = get_errno(flistxattr(arg1, b, arg3)); 8375 unlock_user(b, arg2, arg3); 8376 break; 8377 } 8378 case TARGET_NR_setxattr: 8379 case TARGET_NR_lsetxattr: 8380 { 8381 void *p, *n, *v = 0; 8382 if (arg3) { 8383 v = lock_user(VERIFY_READ, arg3, arg4, 1); 8384 if (!v) { 8385 ret = -TARGET_EFAULT; 8386 break; 8387 } 8388 } 8389 p = lock_user_string(arg1); 8390 n = lock_user_string(arg2); 8391 if (p && n) { 8392 if (num == TARGET_NR_setxattr) { 8393 ret = get_errno(setxattr(p, n, v, arg4, arg5)); 8394 } else { 8395 ret = get_errno(lsetxattr(p, n, v, arg4, arg5)); 8396 } 8397 } else { 8398 ret = -TARGET_EFAULT; 8399 } 8400 unlock_user(p, arg1, 0); 8401 unlock_user(n, arg2, 0); 8402 unlock_user(v, arg3, 0); 8403 } 8404 break; 8405 case TARGET_NR_fsetxattr: 8406 { 8407 void *n, *v = 0; 8408 if (arg3) { 8409 v = lock_user(VERIFY_READ, arg3, arg4, 1); 8410 if (!v) { 8411 ret = -TARGET_EFAULT; 8412 break; 8413 } 8414 } 8415 n = lock_user_string(arg2); 8416 if (n) { 8417 ret = get_errno(fsetxattr(arg1, n, v, arg4, arg5)); 8418 } else { 8419 ret = -TARGET_EFAULT; 8420 } 8421 unlock_user(n, arg2, 0); 8422 unlock_user(v, arg3, 0); 8423 } 8424 break; 8425 case TARGET_NR_getxattr: 8426 case TARGET_NR_lgetxattr: 8427 { 8428 void *p, *n, *v = 0; 8429 if (arg3) { 8430 v = lock_user(VERIFY_WRITE, arg3, arg4, 0); 8431 if (!v) { 8432 ret = -TARGET_EFAULT; 8433 break; 8434 } 8435 } 8436 p = lock_user_string(arg1); 8437 n = lock_user_string(arg2); 8438 if (p && n) { 8439 if (num == TARGET_NR_getxattr) { 8440 ret = get_errno(getxattr(p, n, v, arg4)); 8441 } else { 8442 ret = get_errno(lgetxattr(p, n, v, arg4)); 8443 } 8444 } else { 8445 ret = -TARGET_EFAULT; 8446 } 8447 unlock_user(p, arg1, 0); 8448 unlock_user(n, arg2, 0); 8449 unlock_user(v, arg3, arg4); 8450 } 8451 break; 8452 case TARGET_NR_fgetxattr: 8453 { 8454 void *n, *v = 0; 8455 if (arg3) { 8456 v = lock_user(VERIFY_WRITE, arg3, arg4, 0); 8457 if (!v) { 8458 ret = -TARGET_EFAULT; 8459 break; 8460 } 8461 } 8462 n = lock_user_string(arg2); 8463 if (n) { 8464 ret = get_errno(fgetxattr(arg1, n, v, arg4)); 8465 } else { 8466 ret = -TARGET_EFAULT; 8467 } 8468 unlock_user(n, arg2, 0); 8469 unlock_user(v, arg3, arg4); 8470 } 8471 break; 8472 case TARGET_NR_removexattr: 8473 case TARGET_NR_lremovexattr: 8474 { 8475 void *p, *n; 8476 p = lock_user_string(arg1); 8477 n = lock_user_string(arg2); 8478 if (p && n) { 8479 if (num == TARGET_NR_removexattr) { 8480 ret = get_errno(removexattr(p, n)); 8481 } else { 8482 ret = get_errno(lremovexattr(p, n)); 8483 } 8484 } else { 8485 ret = -TARGET_EFAULT; 8486 } 8487 unlock_user(p, arg1, 0); 8488 unlock_user(n, arg2, 0); 8489 } 8490 break; 8491 case TARGET_NR_fremovexattr: 8492 { 8493 void *n; 8494 n = lock_user_string(arg2); 8495 if (n) { 8496 ret = get_errno(fremovexattr(arg1, n)); 8497 } else { 8498 ret = -TARGET_EFAULT; 8499 } 8500 unlock_user(n, arg2, 0); 8501 } 8502 break; 8503 #endif 8504 #endif /* CONFIG_ATTR */ 8505 #ifdef TARGET_NR_set_thread_area 8506 case TARGET_NR_set_thread_area: 8507 #if defined(TARGET_MIPS) 8508 ((CPUMIPSState *) cpu_env)->tls_value = arg1; 8509 ret = 0; 8510 break; 8511 #elif defined(TARGET_CRIS) 8512 if (arg1 & 0xff) 8513 ret = -TARGET_EINVAL; 8514 else { 8515 ((CPUCRISState *) cpu_env)->pregs[PR_PID] = arg1; 8516 ret = 0; 8517 } 8518 break; 8519 #elif defined(TARGET_I386) && defined(TARGET_ABI32) 8520 ret = do_set_thread_area(cpu_env, arg1); 8521 break; 8522 #elif defined(TARGET_M68K) 8523 { 8524 TaskState *ts = ((CPUArchState *)cpu_env)->opaque; 8525 ts->tp_value = arg1; 8526 ret = 0; 8527 break; 8528 } 8529 #else 8530 goto unimplemented_nowarn; 8531 #endif 8532 #endif 8533 #ifdef TARGET_NR_get_thread_area 8534 case TARGET_NR_get_thread_area: 8535 #if defined(TARGET_I386) && defined(TARGET_ABI32) 8536 ret = do_get_thread_area(cpu_env, arg1); 8537 break; 8538 #elif defined(TARGET_M68K) 8539 { 8540 TaskState *ts = ((CPUArchState *)cpu_env)->opaque; 8541 ret = ts->tp_value; 8542 break; 8543 } 8544 #else 8545 goto unimplemented_nowarn; 8546 #endif 8547 #endif 8548 #ifdef TARGET_NR_getdomainname 8549 case TARGET_NR_getdomainname: 8550 goto unimplemented_nowarn; 8551 #endif 8552 8553 #ifdef TARGET_NR_clock_gettime 8554 case TARGET_NR_clock_gettime: 8555 { 8556 struct timespec ts; 8557 ret = get_errno(clock_gettime(arg1, &ts)); 8558 if (!is_error(ret)) { 8559 host_to_target_timespec(arg2, &ts); 8560 } 8561 break; 8562 } 8563 #endif 8564 #ifdef TARGET_NR_clock_getres 8565 case TARGET_NR_clock_getres: 8566 { 8567 struct timespec ts; 8568 ret = get_errno(clock_getres(arg1, &ts)); 8569 if (!is_error(ret)) { 8570 host_to_target_timespec(arg2, &ts); 8571 } 8572 break; 8573 } 8574 #endif 8575 #ifdef TARGET_NR_clock_nanosleep 8576 case TARGET_NR_clock_nanosleep: 8577 { 8578 struct timespec ts; 8579 target_to_host_timespec(&ts, arg3); 8580 ret = get_errno(clock_nanosleep(arg1, arg2, &ts, arg4 ? &ts : NULL)); 8581 if (arg4) 8582 host_to_target_timespec(arg4, &ts); 8583 break; 8584 } 8585 #endif 8586 8587 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address) 8588 case TARGET_NR_set_tid_address: 8589 ret = get_errno(set_tid_address((int *)g2h(arg1))); 8590 break; 8591 #endif 8592 8593 #if defined(TARGET_NR_tkill) && defined(__NR_tkill) 8594 case TARGET_NR_tkill: 8595 ret = get_errno(sys_tkill((int)arg1, target_to_host_signal(arg2))); 8596 break; 8597 #endif 8598 8599 #if defined(TARGET_NR_tgkill) && defined(__NR_tgkill) 8600 case TARGET_NR_tgkill: 8601 ret = get_errno(sys_tgkill((int)arg1, (int)arg2, 8602 target_to_host_signal(arg3))); 8603 break; 8604 #endif 8605 8606 #ifdef TARGET_NR_set_robust_list 8607 case TARGET_NR_set_robust_list: 8608 case TARGET_NR_get_robust_list: 8609 /* The ABI for supporting robust futexes has userspace pass 8610 * the kernel a pointer to a linked list which is updated by 8611 * userspace after the syscall; the list is walked by the kernel 8612 * when the thread exits. Since the linked list in QEMU guest 8613 * memory isn't a valid linked list for the host and we have 8614 * no way to reliably intercept the thread-death event, we can't 8615 * support these. Silently return ENOSYS so that guest userspace 8616 * falls back to a non-robust futex implementation (which should 8617 * be OK except in the corner case of the guest crashing while 8618 * holding a mutex that is shared with another process via 8619 * shared memory). 8620 */ 8621 goto unimplemented_nowarn; 8622 #endif 8623 8624 #if defined(TARGET_NR_utimensat) 8625 case TARGET_NR_utimensat: 8626 { 8627 struct timespec *tsp, ts[2]; 8628 if (!arg3) { 8629 tsp = NULL; 8630 } else { 8631 target_to_host_timespec(ts, arg3); 8632 target_to_host_timespec(ts+1, arg3+sizeof(struct target_timespec)); 8633 tsp = ts; 8634 } 8635 if (!arg2) 8636 ret = get_errno(sys_utimensat(arg1, NULL, tsp, arg4)); 8637 else { 8638 if (!(p = lock_user_string(arg2))) { 8639 ret = -TARGET_EFAULT; 8640 goto fail; 8641 } 8642 ret = get_errno(sys_utimensat(arg1, path(p), tsp, arg4)); 8643 unlock_user(p, arg2, 0); 8644 } 8645 } 8646 break; 8647 #endif 8648 case TARGET_NR_futex: 8649 ret = do_futex(arg1, arg2, arg3, arg4, arg5, arg6); 8650 break; 8651 #if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init) 8652 case TARGET_NR_inotify_init: 8653 ret = get_errno(sys_inotify_init()); 8654 break; 8655 #endif 8656 #ifdef CONFIG_INOTIFY1 8657 #if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1) 8658 case TARGET_NR_inotify_init1: 8659 ret = get_errno(sys_inotify_init1(arg1)); 8660 break; 8661 #endif 8662 #endif 8663 #if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch) 8664 case TARGET_NR_inotify_add_watch: 8665 p = lock_user_string(arg2); 8666 ret = get_errno(sys_inotify_add_watch(arg1, path(p), arg3)); 8667 unlock_user(p, arg2, 0); 8668 break; 8669 #endif 8670 #if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch) 8671 case TARGET_NR_inotify_rm_watch: 8672 ret = get_errno(sys_inotify_rm_watch(arg1, arg2)); 8673 break; 8674 #endif 8675 8676 #if defined(TARGET_NR_mq_open) && defined(__NR_mq_open) 8677 case TARGET_NR_mq_open: 8678 { 8679 struct mq_attr posix_mq_attr; 8680 8681 p = lock_user_string(arg1 - 1); 8682 if (arg4 != 0) 8683 copy_from_user_mq_attr (&posix_mq_attr, arg4); 8684 ret = get_errno(mq_open(p, arg2, arg3, &posix_mq_attr)); 8685 unlock_user (p, arg1, 0); 8686 } 8687 break; 8688 8689 case TARGET_NR_mq_unlink: 8690 p = lock_user_string(arg1 - 1); 8691 ret = get_errno(mq_unlink(p)); 8692 unlock_user (p, arg1, 0); 8693 break; 8694 8695 case TARGET_NR_mq_timedsend: 8696 { 8697 struct timespec ts; 8698 8699 p = lock_user (VERIFY_READ, arg2, arg3, 1); 8700 if (arg5 != 0) { 8701 target_to_host_timespec(&ts, arg5); 8702 ret = get_errno(mq_timedsend(arg1, p, arg3, arg4, &ts)); 8703 host_to_target_timespec(arg5, &ts); 8704 } 8705 else 8706 ret = get_errno(mq_send(arg1, p, arg3, arg4)); 8707 unlock_user (p, arg2, arg3); 8708 } 8709 break; 8710 8711 case TARGET_NR_mq_timedreceive: 8712 { 8713 struct timespec ts; 8714 unsigned int prio; 8715 8716 p = lock_user (VERIFY_READ, arg2, arg3, 1); 8717 if (arg5 != 0) { 8718 target_to_host_timespec(&ts, arg5); 8719 ret = get_errno(mq_timedreceive(arg1, p, arg3, &prio, &ts)); 8720 host_to_target_timespec(arg5, &ts); 8721 } 8722 else 8723 ret = get_errno(mq_receive(arg1, p, arg3, &prio)); 8724 unlock_user (p, arg2, arg3); 8725 if (arg4 != 0) 8726 put_user_u32(prio, arg4); 8727 } 8728 break; 8729 8730 /* Not implemented for now... */ 8731 /* case TARGET_NR_mq_notify: */ 8732 /* break; */ 8733 8734 case TARGET_NR_mq_getsetattr: 8735 { 8736 struct mq_attr posix_mq_attr_in, posix_mq_attr_out; 8737 ret = 0; 8738 if (arg3 != 0) { 8739 ret = mq_getattr(arg1, &posix_mq_attr_out); 8740 copy_to_user_mq_attr(arg3, &posix_mq_attr_out); 8741 } 8742 if (arg2 != 0) { 8743 copy_from_user_mq_attr(&posix_mq_attr_in, arg2); 8744 ret |= mq_setattr(arg1, &posix_mq_attr_in, &posix_mq_attr_out); 8745 } 8746 8747 } 8748 break; 8749 #endif 8750 8751 #ifdef CONFIG_SPLICE 8752 #ifdef TARGET_NR_tee 8753 case TARGET_NR_tee: 8754 { 8755 ret = get_errno(tee(arg1,arg2,arg3,arg4)); 8756 } 8757 break; 8758 #endif 8759 #ifdef TARGET_NR_splice 8760 case TARGET_NR_splice: 8761 { 8762 loff_t loff_in, loff_out; 8763 loff_t *ploff_in = NULL, *ploff_out = NULL; 8764 if(arg2) { 8765 get_user_u64(loff_in, arg2); 8766 ploff_in = &loff_in; 8767 } 8768 if(arg4) { 8769 get_user_u64(loff_out, arg2); 8770 ploff_out = &loff_out; 8771 } 8772 ret = get_errno(splice(arg1, ploff_in, arg3, ploff_out, arg5, arg6)); 8773 } 8774 break; 8775 #endif 8776 #ifdef TARGET_NR_vmsplice 8777 case TARGET_NR_vmsplice: 8778 { 8779 struct iovec *vec = lock_iovec(VERIFY_READ, arg2, arg3, 1); 8780 if (vec != NULL) { 8781 ret = get_errno(vmsplice(arg1, vec, arg3, arg4)); 8782 unlock_iovec(vec, arg2, arg3, 0); 8783 } else { 8784 ret = -host_to_target_errno(errno); 8785 } 8786 } 8787 break; 8788 #endif 8789 #endif /* CONFIG_SPLICE */ 8790 #ifdef CONFIG_EVENTFD 8791 #if defined(TARGET_NR_eventfd) 8792 case TARGET_NR_eventfd: 8793 ret = get_errno(eventfd(arg1, 0)); 8794 break; 8795 #endif 8796 #if defined(TARGET_NR_eventfd2) 8797 case TARGET_NR_eventfd2: 8798 { 8799 int host_flags = arg2 & (~(TARGET_O_NONBLOCK | TARGET_O_CLOEXEC)); 8800 if (arg2 & TARGET_O_NONBLOCK) { 8801 host_flags |= O_NONBLOCK; 8802 } 8803 if (arg2 & TARGET_O_CLOEXEC) { 8804 host_flags |= O_CLOEXEC; 8805 } 8806 ret = get_errno(eventfd(arg1, host_flags)); 8807 break; 8808 } 8809 #endif 8810 #endif /* CONFIG_EVENTFD */ 8811 #if defined(CONFIG_FALLOCATE) && defined(TARGET_NR_fallocate) 8812 case TARGET_NR_fallocate: 8813 #if TARGET_ABI_BITS == 32 8814 ret = get_errno(fallocate(arg1, arg2, target_offset64(arg3, arg4), 8815 target_offset64(arg5, arg6))); 8816 #else 8817 ret = get_errno(fallocate(arg1, arg2, arg3, arg4)); 8818 #endif 8819 break; 8820 #endif 8821 #if defined(CONFIG_SYNC_FILE_RANGE) 8822 #if defined(TARGET_NR_sync_file_range) 8823 case TARGET_NR_sync_file_range: 8824 #if TARGET_ABI_BITS == 32 8825 #if defined(TARGET_MIPS) 8826 ret = get_errno(sync_file_range(arg1, target_offset64(arg3, arg4), 8827 target_offset64(arg5, arg6), arg7)); 8828 #else 8829 ret = get_errno(sync_file_range(arg1, target_offset64(arg2, arg3), 8830 target_offset64(arg4, arg5), arg6)); 8831 #endif /* !TARGET_MIPS */ 8832 #else 8833 ret = get_errno(sync_file_range(arg1, arg2, arg3, arg4)); 8834 #endif 8835 break; 8836 #endif 8837 #if defined(TARGET_NR_sync_file_range2) 8838 case TARGET_NR_sync_file_range2: 8839 /* This is like sync_file_range but the arguments are reordered */ 8840 #if TARGET_ABI_BITS == 32 8841 ret = get_errno(sync_file_range(arg1, target_offset64(arg3, arg4), 8842 target_offset64(arg5, arg6), arg2)); 8843 #else 8844 ret = get_errno(sync_file_range(arg1, arg3, arg4, arg2)); 8845 #endif 8846 break; 8847 #endif 8848 #endif 8849 #if defined(CONFIG_EPOLL) 8850 #if defined(TARGET_NR_epoll_create) 8851 case TARGET_NR_epoll_create: 8852 ret = get_errno(epoll_create(arg1)); 8853 break; 8854 #endif 8855 #if defined(TARGET_NR_epoll_create1) && defined(CONFIG_EPOLL_CREATE1) 8856 case TARGET_NR_epoll_create1: 8857 ret = get_errno(epoll_create1(arg1)); 8858 break; 8859 #endif 8860 #if defined(TARGET_NR_epoll_ctl) 8861 case TARGET_NR_epoll_ctl: 8862 { 8863 struct epoll_event ep; 8864 struct epoll_event *epp = 0; 8865 if (arg4) { 8866 struct target_epoll_event *target_ep; 8867 if (!lock_user_struct(VERIFY_READ, target_ep, arg4, 1)) { 8868 goto efault; 8869 } 8870 ep.events = tswap32(target_ep->events); 8871 /* The epoll_data_t union is just opaque data to the kernel, 8872 * so we transfer all 64 bits across and need not worry what 8873 * actual data type it is. 8874 */ 8875 ep.data.u64 = tswap64(target_ep->data.u64); 8876 unlock_user_struct(target_ep, arg4, 0); 8877 epp = &ep; 8878 } 8879 ret = get_errno(epoll_ctl(arg1, arg2, arg3, epp)); 8880 break; 8881 } 8882 #endif 8883 8884 #if defined(TARGET_NR_epoll_pwait) && defined(CONFIG_EPOLL_PWAIT) 8885 #define IMPLEMENT_EPOLL_PWAIT 8886 #endif 8887 #if defined(TARGET_NR_epoll_wait) || defined(IMPLEMENT_EPOLL_PWAIT) 8888 #if defined(TARGET_NR_epoll_wait) 8889 case TARGET_NR_epoll_wait: 8890 #endif 8891 #if defined(IMPLEMENT_EPOLL_PWAIT) 8892 case TARGET_NR_epoll_pwait: 8893 #endif 8894 { 8895 struct target_epoll_event *target_ep; 8896 struct epoll_event *ep; 8897 int epfd = arg1; 8898 int maxevents = arg3; 8899 int timeout = arg4; 8900 8901 target_ep = lock_user(VERIFY_WRITE, arg2, 8902 maxevents * sizeof(struct target_epoll_event), 1); 8903 if (!target_ep) { 8904 goto efault; 8905 } 8906 8907 ep = alloca(maxevents * sizeof(struct epoll_event)); 8908 8909 switch (num) { 8910 #if defined(IMPLEMENT_EPOLL_PWAIT) 8911 case TARGET_NR_epoll_pwait: 8912 { 8913 target_sigset_t *target_set; 8914 sigset_t _set, *set = &_set; 8915 8916 if (arg5) { 8917 target_set = lock_user(VERIFY_READ, arg5, 8918 sizeof(target_sigset_t), 1); 8919 if (!target_set) { 8920 unlock_user(target_ep, arg2, 0); 8921 goto efault; 8922 } 8923 target_to_host_sigset(set, target_set); 8924 unlock_user(target_set, arg5, 0); 8925 } else { 8926 set = NULL; 8927 } 8928 8929 ret = get_errno(epoll_pwait(epfd, ep, maxevents, timeout, set)); 8930 break; 8931 } 8932 #endif 8933 #if defined(TARGET_NR_epoll_wait) 8934 case TARGET_NR_epoll_wait: 8935 ret = get_errno(epoll_wait(epfd, ep, maxevents, timeout)); 8936 break; 8937 #endif 8938 default: 8939 ret = -TARGET_ENOSYS; 8940 } 8941 if (!is_error(ret)) { 8942 int i; 8943 for (i = 0; i < ret; i++) { 8944 target_ep[i].events = tswap32(ep[i].events); 8945 target_ep[i].data.u64 = tswap64(ep[i].data.u64); 8946 } 8947 } 8948 unlock_user(target_ep, arg2, ret * sizeof(struct target_epoll_event)); 8949 break; 8950 } 8951 #endif 8952 #endif 8953 #ifdef TARGET_NR_prlimit64 8954 case TARGET_NR_prlimit64: 8955 { 8956 /* args: pid, resource number, ptr to new rlimit, ptr to old rlimit */ 8957 struct target_rlimit64 *target_rnew, *target_rold; 8958 struct host_rlimit64 rnew, rold, *rnewp = 0; 8959 if (arg3) { 8960 if (!lock_user_struct(VERIFY_READ, target_rnew, arg3, 1)) { 8961 goto efault; 8962 } 8963 rnew.rlim_cur = tswap64(target_rnew->rlim_cur); 8964 rnew.rlim_max = tswap64(target_rnew->rlim_max); 8965 unlock_user_struct(target_rnew, arg3, 0); 8966 rnewp = &rnew; 8967 } 8968 8969 ret = get_errno(sys_prlimit64(arg1, arg2, rnewp, arg4 ? &rold : 0)); 8970 if (!is_error(ret) && arg4) { 8971 if (!lock_user_struct(VERIFY_WRITE, target_rold, arg4, 1)) { 8972 goto efault; 8973 } 8974 target_rold->rlim_cur = tswap64(rold.rlim_cur); 8975 target_rold->rlim_max = tswap64(rold.rlim_max); 8976 unlock_user_struct(target_rold, arg4, 1); 8977 } 8978 break; 8979 } 8980 #endif 8981 #ifdef TARGET_NR_gethostname 8982 case TARGET_NR_gethostname: 8983 { 8984 char *name = lock_user(VERIFY_WRITE, arg1, arg2, 0); 8985 if (name) { 8986 ret = get_errno(gethostname(name, arg2)); 8987 unlock_user(name, arg1, arg2); 8988 } else { 8989 ret = -TARGET_EFAULT; 8990 } 8991 break; 8992 } 8993 #endif 8994 default: 8995 unimplemented: 8996 gemu_log("qemu: Unsupported syscall: %d\n", num); 8997 #if defined(TARGET_NR_setxattr) || defined(TARGET_NR_get_thread_area) || defined(TARGET_NR_getdomainname) || defined(TARGET_NR_set_robust_list) 8998 unimplemented_nowarn: 8999 #endif 9000 ret = -TARGET_ENOSYS; 9001 break; 9002 } 9003 fail: 9004 #ifdef DEBUG 9005 gemu_log(" = " TARGET_ABI_FMT_ld "\n", ret); 9006 #endif 9007 if(do_strace) 9008 print_syscall_ret(num, ret); 9009 return ret; 9010 efault: 9011 ret = -TARGET_EFAULT; 9012 goto fail; 9013 } 9014