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 <sys/types.h> 32 #include <sys/ipc.h> 33 #include <sys/msg.h> 34 #include <sys/wait.h> 35 #include <sys/time.h> 36 #include <sys/stat.h> 37 #include <sys/mount.h> 38 #include <sys/prctl.h> 39 #include <sys/resource.h> 40 #include <sys/mman.h> 41 #include <sys/swap.h> 42 #include <signal.h> 43 #include <sched.h> 44 #ifdef __ia64__ 45 int __clone2(int (*fn)(void *), void *child_stack_base, 46 size_t stack_size, int flags, void *arg, ...); 47 #endif 48 #include <sys/socket.h> 49 #include <sys/un.h> 50 #include <sys/uio.h> 51 #include <sys/poll.h> 52 #include <sys/times.h> 53 #include <sys/shm.h> 54 #include <sys/sem.h> 55 #include <sys/statfs.h> 56 #include <utime.h> 57 #include <sys/sysinfo.h> 58 #include <sys/utsname.h> 59 //#include <sys/user.h> 60 #include <netinet/ip.h> 61 #include <netinet/tcp.h> 62 #include <qemu-common.h> 63 #ifdef TARGET_GPROF 64 #include <sys/gmon.h> 65 #endif 66 #ifdef CONFIG_EVENTFD 67 #include <sys/eventfd.h> 68 #endif 69 70 #define termios host_termios 71 #define winsize host_winsize 72 #define termio host_termio 73 #define sgttyb host_sgttyb /* same as target */ 74 #define tchars host_tchars /* same as target */ 75 #define ltchars host_ltchars /* same as target */ 76 77 #include <linux/termios.h> 78 #include <linux/unistd.h> 79 #include <linux/utsname.h> 80 #include <linux/cdrom.h> 81 #include <linux/hdreg.h> 82 #include <linux/soundcard.h> 83 #include <linux/kd.h> 84 #include <linux/mtio.h> 85 #include <linux/fs.h> 86 #include <linux/fb.h> 87 #include <linux/vt.h> 88 #include "linux_loop.h" 89 #include "cpu-uname.h" 90 91 #include "qemu.h" 92 #include "qemu-common.h" 93 94 #if defined(CONFIG_USE_NPTL) 95 #define CLONE_NPTL_FLAGS2 (CLONE_SETTLS | \ 96 CLONE_PARENT_SETTID | CLONE_CHILD_SETTID | CLONE_CHILD_CLEARTID) 97 #else 98 /* XXX: Hardcode the above values. */ 99 #define CLONE_NPTL_FLAGS2 0 100 #endif 101 102 //#define DEBUG 103 104 //#include <linux/msdos_fs.h> 105 #define VFAT_IOCTL_READDIR_BOTH _IOR('r', 1, struct linux_dirent [2]) 106 #define VFAT_IOCTL_READDIR_SHORT _IOR('r', 2, struct linux_dirent [2]) 107 108 109 #undef _syscall0 110 #undef _syscall1 111 #undef _syscall2 112 #undef _syscall3 113 #undef _syscall4 114 #undef _syscall5 115 #undef _syscall6 116 117 #define _syscall0(type,name) \ 118 static type name (void) \ 119 { \ 120 return syscall(__NR_##name); \ 121 } 122 123 #define _syscall1(type,name,type1,arg1) \ 124 static type name (type1 arg1) \ 125 { \ 126 return syscall(__NR_##name, arg1); \ 127 } 128 129 #define _syscall2(type,name,type1,arg1,type2,arg2) \ 130 static type name (type1 arg1,type2 arg2) \ 131 { \ 132 return syscall(__NR_##name, arg1, arg2); \ 133 } 134 135 #define _syscall3(type,name,type1,arg1,type2,arg2,type3,arg3) \ 136 static type name (type1 arg1,type2 arg2,type3 arg3) \ 137 { \ 138 return syscall(__NR_##name, arg1, arg2, arg3); \ 139 } 140 141 #define _syscall4(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4) \ 142 static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4) \ 143 { \ 144 return syscall(__NR_##name, arg1, arg2, arg3, arg4); \ 145 } 146 147 #define _syscall5(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \ 148 type5,arg5) \ 149 static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5) \ 150 { \ 151 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5); \ 152 } 153 154 155 #define _syscall6(type,name,type1,arg1,type2,arg2,type3,arg3,type4,arg4, \ 156 type5,arg5,type6,arg6) \ 157 static type name (type1 arg1,type2 arg2,type3 arg3,type4 arg4,type5 arg5, \ 158 type6 arg6) \ 159 { \ 160 return syscall(__NR_##name, arg1, arg2, arg3, arg4, arg5, arg6); \ 161 } 162 163 164 #define __NR_sys_uname __NR_uname 165 #define __NR_sys_faccessat __NR_faccessat 166 #define __NR_sys_fchmodat __NR_fchmodat 167 #define __NR_sys_fchownat __NR_fchownat 168 #define __NR_sys_fstatat64 __NR_fstatat64 169 #define __NR_sys_futimesat __NR_futimesat 170 #define __NR_sys_getcwd1 __NR_getcwd 171 #define __NR_sys_getdents __NR_getdents 172 #define __NR_sys_getdents64 __NR_getdents64 173 #define __NR_sys_getpriority __NR_getpriority 174 #define __NR_sys_linkat __NR_linkat 175 #define __NR_sys_mkdirat __NR_mkdirat 176 #define __NR_sys_mknodat __NR_mknodat 177 #define __NR_sys_newfstatat __NR_newfstatat 178 #define __NR_sys_openat __NR_openat 179 #define __NR_sys_readlinkat __NR_readlinkat 180 #define __NR_sys_renameat __NR_renameat 181 #define __NR_sys_rt_sigqueueinfo __NR_rt_sigqueueinfo 182 #define __NR_sys_symlinkat __NR_symlinkat 183 #define __NR_sys_syslog __NR_syslog 184 #define __NR_sys_tgkill __NR_tgkill 185 #define __NR_sys_tkill __NR_tkill 186 #define __NR_sys_unlinkat __NR_unlinkat 187 #define __NR_sys_utimensat __NR_utimensat 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 #define __NR__llseek __NR_lseek 195 #endif 196 197 #ifdef __NR_gettid 198 _syscall0(int, gettid) 199 #else 200 /* This is a replacement for the host gettid() and must return a host 201 errno. */ 202 static int gettid(void) { 203 return -ENOSYS; 204 } 205 #endif 206 _syscall3(int, sys_getdents, uint, fd, struct linux_dirent *, dirp, uint, count); 207 #if defined(TARGET_NR_getdents64) && defined(__NR_getdents64) 208 _syscall3(int, sys_getdents64, uint, fd, struct linux_dirent64 *, dirp, uint, count); 209 #endif 210 _syscall2(int, sys_getpriority, int, which, int, who); 211 #if defined(TARGET_NR__llseek) && !defined (__x86_64__) 212 _syscall5(int, _llseek, uint, fd, ulong, hi, ulong, lo, 213 loff_t *, res, uint, wh); 214 #endif 215 _syscall3(int,sys_rt_sigqueueinfo,int,pid,int,sig,siginfo_t *,uinfo) 216 _syscall3(int,sys_syslog,int,type,char*,bufp,int,len) 217 #if defined(TARGET_NR_tgkill) && defined(__NR_tgkill) 218 _syscall3(int,sys_tgkill,int,tgid,int,pid,int,sig) 219 #endif 220 #if defined(TARGET_NR_tkill) && defined(__NR_tkill) 221 _syscall2(int,sys_tkill,int,tid,int,sig) 222 #endif 223 #ifdef __NR_exit_group 224 _syscall1(int,exit_group,int,error_code) 225 #endif 226 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address) 227 _syscall1(int,set_tid_address,int *,tidptr) 228 #endif 229 #if defined(CONFIG_USE_NPTL) 230 #if defined(TARGET_NR_futex) && defined(__NR_futex) 231 _syscall6(int,sys_futex,int *,uaddr,int,op,int,val, 232 const struct timespec *,timeout,int *,uaddr2,int,val3) 233 #endif 234 #endif 235 236 static bitmask_transtbl fcntl_flags_tbl[] = { 237 { TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, }, 238 { TARGET_O_ACCMODE, TARGET_O_RDWR, O_ACCMODE, O_RDWR, }, 239 { TARGET_O_CREAT, TARGET_O_CREAT, O_CREAT, O_CREAT, }, 240 { TARGET_O_EXCL, TARGET_O_EXCL, O_EXCL, O_EXCL, }, 241 { TARGET_O_NOCTTY, TARGET_O_NOCTTY, O_NOCTTY, O_NOCTTY, }, 242 { TARGET_O_TRUNC, TARGET_O_TRUNC, O_TRUNC, O_TRUNC, }, 243 { TARGET_O_APPEND, TARGET_O_APPEND, O_APPEND, O_APPEND, }, 244 { TARGET_O_NONBLOCK, TARGET_O_NONBLOCK, O_NONBLOCK, O_NONBLOCK, }, 245 { TARGET_O_SYNC, TARGET_O_SYNC, O_SYNC, O_SYNC, }, 246 { TARGET_FASYNC, TARGET_FASYNC, FASYNC, FASYNC, }, 247 { TARGET_O_DIRECTORY, TARGET_O_DIRECTORY, O_DIRECTORY, O_DIRECTORY, }, 248 { TARGET_O_NOFOLLOW, TARGET_O_NOFOLLOW, O_NOFOLLOW, O_NOFOLLOW, }, 249 { TARGET_O_LARGEFILE, TARGET_O_LARGEFILE, O_LARGEFILE, O_LARGEFILE, }, 250 #if defined(O_DIRECT) 251 { TARGET_O_DIRECT, TARGET_O_DIRECT, O_DIRECT, O_DIRECT, }, 252 #endif 253 { 0, 0, 0, 0 } 254 }; 255 256 #define COPY_UTSNAME_FIELD(dest, src) \ 257 do { \ 258 /* __NEW_UTS_LEN doesn't include terminating null */ \ 259 (void) strncpy((dest), (src), __NEW_UTS_LEN); \ 260 (dest)[__NEW_UTS_LEN] = '\0'; \ 261 } while (0) 262 263 static int sys_uname(struct new_utsname *buf) 264 { 265 struct utsname uts_buf; 266 267 if (uname(&uts_buf) < 0) 268 return (-1); 269 270 /* 271 * Just in case these have some differences, we 272 * translate utsname to new_utsname (which is the 273 * struct linux kernel uses). 274 */ 275 276 bzero(buf, sizeof (*buf)); 277 COPY_UTSNAME_FIELD(buf->sysname, uts_buf.sysname); 278 COPY_UTSNAME_FIELD(buf->nodename, uts_buf.nodename); 279 COPY_UTSNAME_FIELD(buf->release, uts_buf.release); 280 COPY_UTSNAME_FIELD(buf->version, uts_buf.version); 281 COPY_UTSNAME_FIELD(buf->machine, uts_buf.machine); 282 #ifdef _GNU_SOURCE 283 COPY_UTSNAME_FIELD(buf->domainname, uts_buf.domainname); 284 #endif 285 return (0); 286 287 #undef COPY_UTSNAME_FIELD 288 } 289 290 static int sys_getcwd1(char *buf, size_t size) 291 { 292 if (getcwd(buf, size) == NULL) { 293 /* getcwd() sets errno */ 294 return (-1); 295 } 296 return strlen(buf)+1; 297 } 298 299 #ifdef CONFIG_ATFILE 300 /* 301 * Host system seems to have atfile syscall stubs available. We 302 * now enable them one by one as specified by target syscall_nr.h. 303 */ 304 305 #ifdef TARGET_NR_faccessat 306 static int sys_faccessat(int dirfd, const char *pathname, int mode) 307 { 308 return (faccessat(dirfd, pathname, mode, 0)); 309 } 310 #endif 311 #ifdef TARGET_NR_fchmodat 312 static int sys_fchmodat(int dirfd, const char *pathname, mode_t mode) 313 { 314 return (fchmodat(dirfd, pathname, mode, 0)); 315 } 316 #endif 317 #if defined(TARGET_NR_fchownat) && defined(USE_UID16) 318 static int sys_fchownat(int dirfd, const char *pathname, uid_t owner, 319 gid_t group, int flags) 320 { 321 return (fchownat(dirfd, pathname, owner, group, flags)); 322 } 323 #endif 324 #ifdef __NR_fstatat64 325 static int sys_fstatat64(int dirfd, const char *pathname, struct stat *buf, 326 int flags) 327 { 328 return (fstatat(dirfd, pathname, buf, flags)); 329 } 330 #endif 331 #ifdef __NR_newfstatat 332 static int sys_newfstatat(int dirfd, const char *pathname, struct stat *buf, 333 int flags) 334 { 335 return (fstatat(dirfd, pathname, buf, flags)); 336 } 337 #endif 338 #ifdef TARGET_NR_futimesat 339 static int sys_futimesat(int dirfd, const char *pathname, 340 const struct timeval times[2]) 341 { 342 return (futimesat(dirfd, pathname, times)); 343 } 344 #endif 345 #ifdef TARGET_NR_linkat 346 static int sys_linkat(int olddirfd, const char *oldpath, 347 int newdirfd, const char *newpath, int flags) 348 { 349 return (linkat(olddirfd, oldpath, newdirfd, newpath, flags)); 350 } 351 #endif 352 #ifdef TARGET_NR_mkdirat 353 static int sys_mkdirat(int dirfd, const char *pathname, mode_t mode) 354 { 355 return (mkdirat(dirfd, pathname, mode)); 356 } 357 #endif 358 #ifdef TARGET_NR_mknodat 359 static int sys_mknodat(int dirfd, const char *pathname, mode_t mode, 360 dev_t dev) 361 { 362 return (mknodat(dirfd, pathname, mode, dev)); 363 } 364 #endif 365 #ifdef TARGET_NR_openat 366 static int sys_openat(int dirfd, const char *pathname, int flags, ...) 367 { 368 /* 369 * open(2) has extra parameter 'mode' when called with 370 * flag O_CREAT. 371 */ 372 if ((flags & O_CREAT) != 0) { 373 va_list ap; 374 mode_t mode; 375 376 /* 377 * Get the 'mode' parameter and translate it to 378 * host bits. 379 */ 380 va_start(ap, flags); 381 mode = va_arg(ap, mode_t); 382 mode = target_to_host_bitmask(mode, fcntl_flags_tbl); 383 va_end(ap); 384 385 return (openat(dirfd, pathname, flags, mode)); 386 } 387 return (openat(dirfd, pathname, flags)); 388 } 389 #endif 390 #ifdef TARGET_NR_readlinkat 391 static int sys_readlinkat(int dirfd, const char *pathname, char *buf, size_t bufsiz) 392 { 393 return (readlinkat(dirfd, pathname, buf, bufsiz)); 394 } 395 #endif 396 #ifdef TARGET_NR_renameat 397 static int sys_renameat(int olddirfd, const char *oldpath, 398 int newdirfd, const char *newpath) 399 { 400 return (renameat(olddirfd, oldpath, newdirfd, newpath)); 401 } 402 #endif 403 #ifdef TARGET_NR_symlinkat 404 static int sys_symlinkat(const char *oldpath, int newdirfd, const char *newpath) 405 { 406 return (symlinkat(oldpath, newdirfd, newpath)); 407 } 408 #endif 409 #ifdef TARGET_NR_unlinkat 410 static int sys_unlinkat(int dirfd, const char *pathname, int flags) 411 { 412 return (unlinkat(dirfd, pathname, flags)); 413 } 414 #endif 415 #else /* !CONFIG_ATFILE */ 416 417 /* 418 * Try direct syscalls instead 419 */ 420 #if defined(TARGET_NR_faccessat) && defined(__NR_faccessat) 421 _syscall3(int,sys_faccessat,int,dirfd,const char *,pathname,int,mode) 422 #endif 423 #if defined(TARGET_NR_fchmodat) && defined(__NR_fchmodat) 424 _syscall3(int,sys_fchmodat,int,dirfd,const char *,pathname, mode_t,mode) 425 #endif 426 #if defined(TARGET_NR_fchownat) && defined(__NR_fchownat) && defined(USE_UID16) 427 _syscall5(int,sys_fchownat,int,dirfd,const char *,pathname, 428 uid_t,owner,gid_t,group,int,flags) 429 #endif 430 #if (defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat)) && \ 431 defined(__NR_fstatat64) 432 _syscall4(int,sys_fstatat64,int,dirfd,const char *,pathname, 433 struct stat *,buf,int,flags) 434 #endif 435 #if defined(TARGET_NR_futimesat) && defined(__NR_futimesat) 436 _syscall3(int,sys_futimesat,int,dirfd,const char *,pathname, 437 const struct timeval *,times) 438 #endif 439 #if (defined(TARGET_NR_newfstatat) || defined(TARGET_NR_fstatat64) ) && \ 440 defined(__NR_newfstatat) 441 _syscall4(int,sys_newfstatat,int,dirfd,const char *,pathname, 442 struct stat *,buf,int,flags) 443 #endif 444 #if defined(TARGET_NR_linkat) && defined(__NR_linkat) 445 _syscall5(int,sys_linkat,int,olddirfd,const char *,oldpath, 446 int,newdirfd,const char *,newpath,int,flags) 447 #endif 448 #if defined(TARGET_NR_mkdirat) && defined(__NR_mkdirat) 449 _syscall3(int,sys_mkdirat,int,dirfd,const char *,pathname,mode_t,mode) 450 #endif 451 #if defined(TARGET_NR_mknodat) && defined(__NR_mknodat) 452 _syscall4(int,sys_mknodat,int,dirfd,const char *,pathname, 453 mode_t,mode,dev_t,dev) 454 #endif 455 #if defined(TARGET_NR_openat) && defined(__NR_openat) 456 _syscall4(int,sys_openat,int,dirfd,const char *,pathname,int,flags,mode_t,mode) 457 #endif 458 #if defined(TARGET_NR_readlinkat) && defined(__NR_readlinkat) 459 _syscall4(int,sys_readlinkat,int,dirfd,const char *,pathname, 460 char *,buf,size_t,bufsize) 461 #endif 462 #if defined(TARGET_NR_renameat) && defined(__NR_renameat) 463 _syscall4(int,sys_renameat,int,olddirfd,const char *,oldpath, 464 int,newdirfd,const char *,newpath) 465 #endif 466 #if defined(TARGET_NR_symlinkat) && defined(__NR_symlinkat) 467 _syscall3(int,sys_symlinkat,const char *,oldpath, 468 int,newdirfd,const char *,newpath) 469 #endif 470 #if defined(TARGET_NR_unlinkat) && defined(__NR_unlinkat) 471 _syscall3(int,sys_unlinkat,int,dirfd,const char *,pathname,int,flags) 472 #endif 473 474 #endif /* CONFIG_ATFILE */ 475 476 #ifdef CONFIG_UTIMENSAT 477 static int sys_utimensat(int dirfd, const char *pathname, 478 const struct timespec times[2], int flags) 479 { 480 if (pathname == NULL) 481 return futimens(dirfd, times); 482 else 483 return utimensat(dirfd, pathname, times, flags); 484 } 485 #else 486 #if defined(TARGET_NR_utimensat) && defined(__NR_utimensat) 487 _syscall4(int,sys_utimensat,int,dirfd,const char *,pathname, 488 const struct timespec *,tsp,int,flags) 489 #endif 490 #endif /* CONFIG_UTIMENSAT */ 491 492 #ifdef CONFIG_INOTIFY 493 #include <sys/inotify.h> 494 495 #if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init) 496 static int sys_inotify_init(void) 497 { 498 return (inotify_init()); 499 } 500 #endif 501 #if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch) 502 static int sys_inotify_add_watch(int fd,const char *pathname, int32_t mask) 503 { 504 return (inotify_add_watch(fd, pathname, mask)); 505 } 506 #endif 507 #if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch) 508 static int sys_inotify_rm_watch(int fd, int32_t wd) 509 { 510 return (inotify_rm_watch(fd, wd)); 511 } 512 #endif 513 #ifdef CONFIG_INOTIFY1 514 #if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1) 515 static int sys_inotify_init1(int flags) 516 { 517 return (inotify_init1(flags)); 518 } 519 #endif 520 #endif 521 #else 522 /* Userspace can usually survive runtime without inotify */ 523 #undef TARGET_NR_inotify_init 524 #undef TARGET_NR_inotify_init1 525 #undef TARGET_NR_inotify_add_watch 526 #undef TARGET_NR_inotify_rm_watch 527 #endif /* CONFIG_INOTIFY */ 528 529 530 extern int personality(int); 531 extern int flock(int, int); 532 extern int setfsuid(int); 533 extern int setfsgid(int); 534 extern int setgroups(int, gid_t *); 535 536 #define ERRNO_TABLE_SIZE 1200 537 538 /* target_to_host_errno_table[] is initialized from 539 * host_to_target_errno_table[] in syscall_init(). */ 540 static uint16_t target_to_host_errno_table[ERRNO_TABLE_SIZE] = { 541 }; 542 543 /* 544 * This list is the union of errno values overridden in asm-<arch>/errno.h 545 * minus the errnos that are not actually generic to all archs. 546 */ 547 static uint16_t host_to_target_errno_table[ERRNO_TABLE_SIZE] = { 548 [EIDRM] = TARGET_EIDRM, 549 [ECHRNG] = TARGET_ECHRNG, 550 [EL2NSYNC] = TARGET_EL2NSYNC, 551 [EL3HLT] = TARGET_EL3HLT, 552 [EL3RST] = TARGET_EL3RST, 553 [ELNRNG] = TARGET_ELNRNG, 554 [EUNATCH] = TARGET_EUNATCH, 555 [ENOCSI] = TARGET_ENOCSI, 556 [EL2HLT] = TARGET_EL2HLT, 557 [EDEADLK] = TARGET_EDEADLK, 558 [ENOLCK] = TARGET_ENOLCK, 559 [EBADE] = TARGET_EBADE, 560 [EBADR] = TARGET_EBADR, 561 [EXFULL] = TARGET_EXFULL, 562 [ENOANO] = TARGET_ENOANO, 563 [EBADRQC] = TARGET_EBADRQC, 564 [EBADSLT] = TARGET_EBADSLT, 565 [EBFONT] = TARGET_EBFONT, 566 [ENOSTR] = TARGET_ENOSTR, 567 [ENODATA] = TARGET_ENODATA, 568 [ETIME] = TARGET_ETIME, 569 [ENOSR] = TARGET_ENOSR, 570 [ENONET] = TARGET_ENONET, 571 [ENOPKG] = TARGET_ENOPKG, 572 [EREMOTE] = TARGET_EREMOTE, 573 [ENOLINK] = TARGET_ENOLINK, 574 [EADV] = TARGET_EADV, 575 [ESRMNT] = TARGET_ESRMNT, 576 [ECOMM] = TARGET_ECOMM, 577 [EPROTO] = TARGET_EPROTO, 578 [EDOTDOT] = TARGET_EDOTDOT, 579 [EMULTIHOP] = TARGET_EMULTIHOP, 580 [EBADMSG] = TARGET_EBADMSG, 581 [ENAMETOOLONG] = TARGET_ENAMETOOLONG, 582 [EOVERFLOW] = TARGET_EOVERFLOW, 583 [ENOTUNIQ] = TARGET_ENOTUNIQ, 584 [EBADFD] = TARGET_EBADFD, 585 [EREMCHG] = TARGET_EREMCHG, 586 [ELIBACC] = TARGET_ELIBACC, 587 [ELIBBAD] = TARGET_ELIBBAD, 588 [ELIBSCN] = TARGET_ELIBSCN, 589 [ELIBMAX] = TARGET_ELIBMAX, 590 [ELIBEXEC] = TARGET_ELIBEXEC, 591 [EILSEQ] = TARGET_EILSEQ, 592 [ENOSYS] = TARGET_ENOSYS, 593 [ELOOP] = TARGET_ELOOP, 594 [ERESTART] = TARGET_ERESTART, 595 [ESTRPIPE] = TARGET_ESTRPIPE, 596 [ENOTEMPTY] = TARGET_ENOTEMPTY, 597 [EUSERS] = TARGET_EUSERS, 598 [ENOTSOCK] = TARGET_ENOTSOCK, 599 [EDESTADDRREQ] = TARGET_EDESTADDRREQ, 600 [EMSGSIZE] = TARGET_EMSGSIZE, 601 [EPROTOTYPE] = TARGET_EPROTOTYPE, 602 [ENOPROTOOPT] = TARGET_ENOPROTOOPT, 603 [EPROTONOSUPPORT] = TARGET_EPROTONOSUPPORT, 604 [ESOCKTNOSUPPORT] = TARGET_ESOCKTNOSUPPORT, 605 [EOPNOTSUPP] = TARGET_EOPNOTSUPP, 606 [EPFNOSUPPORT] = TARGET_EPFNOSUPPORT, 607 [EAFNOSUPPORT] = TARGET_EAFNOSUPPORT, 608 [EADDRINUSE] = TARGET_EADDRINUSE, 609 [EADDRNOTAVAIL] = TARGET_EADDRNOTAVAIL, 610 [ENETDOWN] = TARGET_ENETDOWN, 611 [ENETUNREACH] = TARGET_ENETUNREACH, 612 [ENETRESET] = TARGET_ENETRESET, 613 [ECONNABORTED] = TARGET_ECONNABORTED, 614 [ECONNRESET] = TARGET_ECONNRESET, 615 [ENOBUFS] = TARGET_ENOBUFS, 616 [EISCONN] = TARGET_EISCONN, 617 [ENOTCONN] = TARGET_ENOTCONN, 618 [EUCLEAN] = TARGET_EUCLEAN, 619 [ENOTNAM] = TARGET_ENOTNAM, 620 [ENAVAIL] = TARGET_ENAVAIL, 621 [EISNAM] = TARGET_EISNAM, 622 [EREMOTEIO] = TARGET_EREMOTEIO, 623 [ESHUTDOWN] = TARGET_ESHUTDOWN, 624 [ETOOMANYREFS] = TARGET_ETOOMANYREFS, 625 [ETIMEDOUT] = TARGET_ETIMEDOUT, 626 [ECONNREFUSED] = TARGET_ECONNREFUSED, 627 [EHOSTDOWN] = TARGET_EHOSTDOWN, 628 [EHOSTUNREACH] = TARGET_EHOSTUNREACH, 629 [EALREADY] = TARGET_EALREADY, 630 [EINPROGRESS] = TARGET_EINPROGRESS, 631 [ESTALE] = TARGET_ESTALE, 632 [ECANCELED] = TARGET_ECANCELED, 633 [ENOMEDIUM] = TARGET_ENOMEDIUM, 634 [EMEDIUMTYPE] = TARGET_EMEDIUMTYPE, 635 #ifdef ENOKEY 636 [ENOKEY] = TARGET_ENOKEY, 637 #endif 638 #ifdef EKEYEXPIRED 639 [EKEYEXPIRED] = TARGET_EKEYEXPIRED, 640 #endif 641 #ifdef EKEYREVOKED 642 [EKEYREVOKED] = TARGET_EKEYREVOKED, 643 #endif 644 #ifdef EKEYREJECTED 645 [EKEYREJECTED] = TARGET_EKEYREJECTED, 646 #endif 647 #ifdef EOWNERDEAD 648 [EOWNERDEAD] = TARGET_EOWNERDEAD, 649 #endif 650 #ifdef ENOTRECOVERABLE 651 [ENOTRECOVERABLE] = TARGET_ENOTRECOVERABLE, 652 #endif 653 }; 654 655 static inline int host_to_target_errno(int err) 656 { 657 if(host_to_target_errno_table[err]) 658 return host_to_target_errno_table[err]; 659 return err; 660 } 661 662 static inline int target_to_host_errno(int err) 663 { 664 if (target_to_host_errno_table[err]) 665 return target_to_host_errno_table[err]; 666 return err; 667 } 668 669 static inline abi_long get_errno(abi_long ret) 670 { 671 if (ret == -1) 672 return -host_to_target_errno(errno); 673 else 674 return ret; 675 } 676 677 static inline int is_error(abi_long ret) 678 { 679 return (abi_ulong)ret >= (abi_ulong)(-4096); 680 } 681 682 char *target_strerror(int err) 683 { 684 return strerror(target_to_host_errno(err)); 685 } 686 687 static abi_ulong target_brk; 688 static abi_ulong target_original_brk; 689 690 void target_set_brk(abi_ulong new_brk) 691 { 692 target_original_brk = target_brk = HOST_PAGE_ALIGN(new_brk); 693 } 694 695 /* do_brk() must return target values and target errnos. */ 696 abi_long do_brk(abi_ulong new_brk) 697 { 698 abi_ulong brk_page; 699 abi_long mapped_addr; 700 int new_alloc_size; 701 702 if (!new_brk) 703 return target_brk; 704 if (new_brk < target_original_brk) 705 return target_brk; 706 707 brk_page = HOST_PAGE_ALIGN(target_brk); 708 709 /* If the new brk is less than this, set it and we're done... */ 710 if (new_brk < brk_page) { 711 target_brk = new_brk; 712 return target_brk; 713 } 714 715 /* We need to allocate more memory after the brk... */ 716 new_alloc_size = HOST_PAGE_ALIGN(new_brk - brk_page + 1); 717 mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size, 718 PROT_READ|PROT_WRITE, 719 MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0)); 720 721 if (!is_error(mapped_addr)) 722 target_brk = new_brk; 723 724 return target_brk; 725 } 726 727 static inline abi_long copy_from_user_fdset(fd_set *fds, 728 abi_ulong target_fds_addr, 729 int n) 730 { 731 int i, nw, j, k; 732 abi_ulong b, *target_fds; 733 734 nw = (n + TARGET_ABI_BITS - 1) / TARGET_ABI_BITS; 735 if (!(target_fds = lock_user(VERIFY_READ, 736 target_fds_addr, 737 sizeof(abi_ulong) * nw, 738 1))) 739 return -TARGET_EFAULT; 740 741 FD_ZERO(fds); 742 k = 0; 743 for (i = 0; i < nw; i++) { 744 /* grab the abi_ulong */ 745 __get_user(b, &target_fds[i]); 746 for (j = 0; j < TARGET_ABI_BITS; j++) { 747 /* check the bit inside the abi_ulong */ 748 if ((b >> j) & 1) 749 FD_SET(k, fds); 750 k++; 751 } 752 } 753 754 unlock_user(target_fds, target_fds_addr, 0); 755 756 return 0; 757 } 758 759 static inline abi_long copy_to_user_fdset(abi_ulong target_fds_addr, 760 const fd_set *fds, 761 int n) 762 { 763 int i, nw, j, k; 764 abi_long v; 765 abi_ulong *target_fds; 766 767 nw = (n + TARGET_ABI_BITS - 1) / TARGET_ABI_BITS; 768 if (!(target_fds = lock_user(VERIFY_WRITE, 769 target_fds_addr, 770 sizeof(abi_ulong) * nw, 771 0))) 772 return -TARGET_EFAULT; 773 774 k = 0; 775 for (i = 0; i < nw; i++) { 776 v = 0; 777 for (j = 0; j < TARGET_ABI_BITS; j++) { 778 v |= ((FD_ISSET(k, fds) != 0) << j); 779 k++; 780 } 781 __put_user(v, &target_fds[i]); 782 } 783 784 unlock_user(target_fds, target_fds_addr, sizeof(abi_ulong) * nw); 785 786 return 0; 787 } 788 789 #if defined(__alpha__) 790 #define HOST_HZ 1024 791 #else 792 #define HOST_HZ 100 793 #endif 794 795 static inline abi_long host_to_target_clock_t(long ticks) 796 { 797 #if HOST_HZ == TARGET_HZ 798 return ticks; 799 #else 800 return ((int64_t)ticks * TARGET_HZ) / HOST_HZ; 801 #endif 802 } 803 804 static inline abi_long host_to_target_rusage(abi_ulong target_addr, 805 const struct rusage *rusage) 806 { 807 struct target_rusage *target_rusage; 808 809 if (!lock_user_struct(VERIFY_WRITE, target_rusage, target_addr, 0)) 810 return -TARGET_EFAULT; 811 target_rusage->ru_utime.tv_sec = tswapl(rusage->ru_utime.tv_sec); 812 target_rusage->ru_utime.tv_usec = tswapl(rusage->ru_utime.tv_usec); 813 target_rusage->ru_stime.tv_sec = tswapl(rusage->ru_stime.tv_sec); 814 target_rusage->ru_stime.tv_usec = tswapl(rusage->ru_stime.tv_usec); 815 target_rusage->ru_maxrss = tswapl(rusage->ru_maxrss); 816 target_rusage->ru_ixrss = tswapl(rusage->ru_ixrss); 817 target_rusage->ru_idrss = tswapl(rusage->ru_idrss); 818 target_rusage->ru_isrss = tswapl(rusage->ru_isrss); 819 target_rusage->ru_minflt = tswapl(rusage->ru_minflt); 820 target_rusage->ru_majflt = tswapl(rusage->ru_majflt); 821 target_rusage->ru_nswap = tswapl(rusage->ru_nswap); 822 target_rusage->ru_inblock = tswapl(rusage->ru_inblock); 823 target_rusage->ru_oublock = tswapl(rusage->ru_oublock); 824 target_rusage->ru_msgsnd = tswapl(rusage->ru_msgsnd); 825 target_rusage->ru_msgrcv = tswapl(rusage->ru_msgrcv); 826 target_rusage->ru_nsignals = tswapl(rusage->ru_nsignals); 827 target_rusage->ru_nvcsw = tswapl(rusage->ru_nvcsw); 828 target_rusage->ru_nivcsw = tswapl(rusage->ru_nivcsw); 829 unlock_user_struct(target_rusage, target_addr, 1); 830 831 return 0; 832 } 833 834 static inline abi_long copy_from_user_timeval(struct timeval *tv, 835 abi_ulong target_tv_addr) 836 { 837 struct target_timeval *target_tv; 838 839 if (!lock_user_struct(VERIFY_READ, target_tv, target_tv_addr, 1)) 840 return -TARGET_EFAULT; 841 842 __get_user(tv->tv_sec, &target_tv->tv_sec); 843 __get_user(tv->tv_usec, &target_tv->tv_usec); 844 845 unlock_user_struct(target_tv, target_tv_addr, 0); 846 847 return 0; 848 } 849 850 static inline abi_long copy_to_user_timeval(abi_ulong target_tv_addr, 851 const struct timeval *tv) 852 { 853 struct target_timeval *target_tv; 854 855 if (!lock_user_struct(VERIFY_WRITE, target_tv, target_tv_addr, 0)) 856 return -TARGET_EFAULT; 857 858 __put_user(tv->tv_sec, &target_tv->tv_sec); 859 __put_user(tv->tv_usec, &target_tv->tv_usec); 860 861 unlock_user_struct(target_tv, target_tv_addr, 1); 862 863 return 0; 864 } 865 866 #if defined(TARGET_NR_mq_open) && defined(__NR_mq_open) 867 #include <mqueue.h> 868 869 static inline abi_long copy_from_user_mq_attr(struct mq_attr *attr, 870 abi_ulong target_mq_attr_addr) 871 { 872 struct target_mq_attr *target_mq_attr; 873 874 if (!lock_user_struct(VERIFY_READ, target_mq_attr, 875 target_mq_attr_addr, 1)) 876 return -TARGET_EFAULT; 877 878 __get_user(attr->mq_flags, &target_mq_attr->mq_flags); 879 __get_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg); 880 __get_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize); 881 __get_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs); 882 883 unlock_user_struct(target_mq_attr, target_mq_attr_addr, 0); 884 885 return 0; 886 } 887 888 static inline abi_long copy_to_user_mq_attr(abi_ulong target_mq_attr_addr, 889 const struct mq_attr *attr) 890 { 891 struct target_mq_attr *target_mq_attr; 892 893 if (!lock_user_struct(VERIFY_WRITE, target_mq_attr, 894 target_mq_attr_addr, 0)) 895 return -TARGET_EFAULT; 896 897 __put_user(attr->mq_flags, &target_mq_attr->mq_flags); 898 __put_user(attr->mq_maxmsg, &target_mq_attr->mq_maxmsg); 899 __put_user(attr->mq_msgsize, &target_mq_attr->mq_msgsize); 900 __put_user(attr->mq_curmsgs, &target_mq_attr->mq_curmsgs); 901 902 unlock_user_struct(target_mq_attr, target_mq_attr_addr, 1); 903 904 return 0; 905 } 906 #endif 907 908 /* do_select() must return target values and target errnos. */ 909 static abi_long do_select(int n, 910 abi_ulong rfd_addr, abi_ulong wfd_addr, 911 abi_ulong efd_addr, abi_ulong target_tv_addr) 912 { 913 fd_set rfds, wfds, efds; 914 fd_set *rfds_ptr, *wfds_ptr, *efds_ptr; 915 struct timeval tv, *tv_ptr; 916 abi_long ret; 917 918 if (rfd_addr) { 919 if (copy_from_user_fdset(&rfds, rfd_addr, n)) 920 return -TARGET_EFAULT; 921 rfds_ptr = &rfds; 922 } else { 923 rfds_ptr = NULL; 924 } 925 if (wfd_addr) { 926 if (copy_from_user_fdset(&wfds, wfd_addr, n)) 927 return -TARGET_EFAULT; 928 wfds_ptr = &wfds; 929 } else { 930 wfds_ptr = NULL; 931 } 932 if (efd_addr) { 933 if (copy_from_user_fdset(&efds, efd_addr, n)) 934 return -TARGET_EFAULT; 935 efds_ptr = &efds; 936 } else { 937 efds_ptr = NULL; 938 } 939 940 if (target_tv_addr) { 941 if (copy_from_user_timeval(&tv, target_tv_addr)) 942 return -TARGET_EFAULT; 943 tv_ptr = &tv; 944 } else { 945 tv_ptr = NULL; 946 } 947 948 ret = get_errno(select(n, rfds_ptr, wfds_ptr, efds_ptr, tv_ptr)); 949 950 if (!is_error(ret)) { 951 if (rfd_addr && copy_to_user_fdset(rfd_addr, &rfds, n)) 952 return -TARGET_EFAULT; 953 if (wfd_addr && copy_to_user_fdset(wfd_addr, &wfds, n)) 954 return -TARGET_EFAULT; 955 if (efd_addr && copy_to_user_fdset(efd_addr, &efds, n)) 956 return -TARGET_EFAULT; 957 958 if (target_tv_addr && copy_to_user_timeval(target_tv_addr, &tv)) 959 return -TARGET_EFAULT; 960 } 961 962 return ret; 963 } 964 965 static abi_long do_pipe2(int host_pipe[], int flags) 966 { 967 #ifdef CONFIG_PIPE2 968 return pipe2(host_pipe, flags); 969 #else 970 return -ENOSYS; 971 #endif 972 } 973 974 static abi_long do_pipe(void *cpu_env, abi_ulong pipedes, int flags) 975 { 976 int host_pipe[2]; 977 abi_long ret; 978 ret = flags ? do_pipe2(host_pipe, flags) : pipe(host_pipe); 979 980 if (is_error(ret)) 981 return get_errno(ret); 982 #if defined(TARGET_MIPS) 983 ((CPUMIPSState*)cpu_env)->active_tc.gpr[3] = host_pipe[1]; 984 ret = host_pipe[0]; 985 #else 986 #if defined(TARGET_SH4) 987 if (!flags) { 988 ((CPUSH4State*)cpu_env)->gregs[1] = host_pipe[1]; 989 ret = host_pipe[0]; 990 } else 991 #endif 992 if (put_user_s32(host_pipe[0], pipedes) 993 || put_user_s32(host_pipe[1], pipedes + sizeof(host_pipe[0]))) 994 return -TARGET_EFAULT; 995 #endif 996 return get_errno(ret); 997 } 998 999 static inline abi_long target_to_host_ip_mreq(struct ip_mreqn *mreqn, 1000 abi_ulong target_addr, 1001 socklen_t len) 1002 { 1003 struct target_ip_mreqn *target_smreqn; 1004 1005 target_smreqn = lock_user(VERIFY_READ, target_addr, len, 1); 1006 if (!target_smreqn) 1007 return -TARGET_EFAULT; 1008 mreqn->imr_multiaddr.s_addr = target_smreqn->imr_multiaddr.s_addr; 1009 mreqn->imr_address.s_addr = target_smreqn->imr_address.s_addr; 1010 if (len == sizeof(struct target_ip_mreqn)) 1011 mreqn->imr_ifindex = tswapl(target_smreqn->imr_ifindex); 1012 unlock_user(target_smreqn, target_addr, 0); 1013 1014 return 0; 1015 } 1016 1017 static inline abi_long target_to_host_sockaddr(struct sockaddr *addr, 1018 abi_ulong target_addr, 1019 socklen_t len) 1020 { 1021 const socklen_t unix_maxlen = sizeof (struct sockaddr_un); 1022 sa_family_t sa_family; 1023 struct target_sockaddr *target_saddr; 1024 1025 target_saddr = lock_user(VERIFY_READ, target_addr, len, 1); 1026 if (!target_saddr) 1027 return -TARGET_EFAULT; 1028 1029 sa_family = tswap16(target_saddr->sa_family); 1030 1031 /* Oops. The caller might send a incomplete sun_path; sun_path 1032 * must be terminated by \0 (see the manual page), but 1033 * unfortunately it is quite common to specify sockaddr_un 1034 * length as "strlen(x->sun_path)" while it should be 1035 * "strlen(...) + 1". We'll fix that here if needed. 1036 * Linux kernel has a similar feature. 1037 */ 1038 1039 if (sa_family == AF_UNIX) { 1040 if (len < unix_maxlen && len > 0) { 1041 char *cp = (char*)target_saddr; 1042 1043 if ( cp[len-1] && !cp[len] ) 1044 len++; 1045 } 1046 if (len > unix_maxlen) 1047 len = unix_maxlen; 1048 } 1049 1050 memcpy(addr, target_saddr, len); 1051 addr->sa_family = sa_family; 1052 unlock_user(target_saddr, target_addr, 0); 1053 1054 return 0; 1055 } 1056 1057 static inline abi_long host_to_target_sockaddr(abi_ulong target_addr, 1058 struct sockaddr *addr, 1059 socklen_t len) 1060 { 1061 struct target_sockaddr *target_saddr; 1062 1063 target_saddr = lock_user(VERIFY_WRITE, target_addr, len, 0); 1064 if (!target_saddr) 1065 return -TARGET_EFAULT; 1066 memcpy(target_saddr, addr, len); 1067 target_saddr->sa_family = tswap16(addr->sa_family); 1068 unlock_user(target_saddr, target_addr, len); 1069 1070 return 0; 1071 } 1072 1073 /* ??? Should this also swap msgh->name? */ 1074 static inline abi_long target_to_host_cmsg(struct msghdr *msgh, 1075 struct target_msghdr *target_msgh) 1076 { 1077 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh); 1078 abi_long msg_controllen; 1079 abi_ulong target_cmsg_addr; 1080 struct target_cmsghdr *target_cmsg; 1081 socklen_t space = 0; 1082 1083 msg_controllen = tswapl(target_msgh->msg_controllen); 1084 if (msg_controllen < sizeof (struct target_cmsghdr)) 1085 goto the_end; 1086 target_cmsg_addr = tswapl(target_msgh->msg_control); 1087 target_cmsg = lock_user(VERIFY_READ, target_cmsg_addr, msg_controllen, 1); 1088 if (!target_cmsg) 1089 return -TARGET_EFAULT; 1090 1091 while (cmsg && target_cmsg) { 1092 void *data = CMSG_DATA(cmsg); 1093 void *target_data = TARGET_CMSG_DATA(target_cmsg); 1094 1095 int len = tswapl(target_cmsg->cmsg_len) 1096 - TARGET_CMSG_ALIGN(sizeof (struct target_cmsghdr)); 1097 1098 space += CMSG_SPACE(len); 1099 if (space > msgh->msg_controllen) { 1100 space -= CMSG_SPACE(len); 1101 gemu_log("Host cmsg overflow\n"); 1102 break; 1103 } 1104 1105 cmsg->cmsg_level = tswap32(target_cmsg->cmsg_level); 1106 cmsg->cmsg_type = tswap32(target_cmsg->cmsg_type); 1107 cmsg->cmsg_len = CMSG_LEN(len); 1108 1109 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) { 1110 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type); 1111 memcpy(data, target_data, len); 1112 } else { 1113 int *fd = (int *)data; 1114 int *target_fd = (int *)target_data; 1115 int i, numfds = len / sizeof(int); 1116 1117 for (i = 0; i < numfds; i++) 1118 fd[i] = tswap32(target_fd[i]); 1119 } 1120 1121 cmsg = CMSG_NXTHDR(msgh, cmsg); 1122 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg); 1123 } 1124 unlock_user(target_cmsg, target_cmsg_addr, 0); 1125 the_end: 1126 msgh->msg_controllen = space; 1127 return 0; 1128 } 1129 1130 /* ??? Should this also swap msgh->name? */ 1131 static inline abi_long host_to_target_cmsg(struct target_msghdr *target_msgh, 1132 struct msghdr *msgh) 1133 { 1134 struct cmsghdr *cmsg = CMSG_FIRSTHDR(msgh); 1135 abi_long msg_controllen; 1136 abi_ulong target_cmsg_addr; 1137 struct target_cmsghdr *target_cmsg; 1138 socklen_t space = 0; 1139 1140 msg_controllen = tswapl(target_msgh->msg_controllen); 1141 if (msg_controllen < sizeof (struct target_cmsghdr)) 1142 goto the_end; 1143 target_cmsg_addr = tswapl(target_msgh->msg_control); 1144 target_cmsg = lock_user(VERIFY_WRITE, target_cmsg_addr, msg_controllen, 0); 1145 if (!target_cmsg) 1146 return -TARGET_EFAULT; 1147 1148 while (cmsg && target_cmsg) { 1149 void *data = CMSG_DATA(cmsg); 1150 void *target_data = TARGET_CMSG_DATA(target_cmsg); 1151 1152 int len = cmsg->cmsg_len - CMSG_ALIGN(sizeof (struct cmsghdr)); 1153 1154 space += TARGET_CMSG_SPACE(len); 1155 if (space > msg_controllen) { 1156 space -= TARGET_CMSG_SPACE(len); 1157 gemu_log("Target cmsg overflow\n"); 1158 break; 1159 } 1160 1161 target_cmsg->cmsg_level = tswap32(cmsg->cmsg_level); 1162 target_cmsg->cmsg_type = tswap32(cmsg->cmsg_type); 1163 target_cmsg->cmsg_len = tswapl(TARGET_CMSG_LEN(len)); 1164 1165 if (cmsg->cmsg_level != TARGET_SOL_SOCKET || cmsg->cmsg_type != SCM_RIGHTS) { 1166 gemu_log("Unsupported ancillary data: %d/%d\n", cmsg->cmsg_level, cmsg->cmsg_type); 1167 memcpy(target_data, data, len); 1168 } else { 1169 int *fd = (int *)data; 1170 int *target_fd = (int *)target_data; 1171 int i, numfds = len / sizeof(int); 1172 1173 for (i = 0; i < numfds; i++) 1174 target_fd[i] = tswap32(fd[i]); 1175 } 1176 1177 cmsg = CMSG_NXTHDR(msgh, cmsg); 1178 target_cmsg = TARGET_CMSG_NXTHDR(target_msgh, target_cmsg); 1179 } 1180 unlock_user(target_cmsg, target_cmsg_addr, space); 1181 the_end: 1182 target_msgh->msg_controllen = tswapl(space); 1183 return 0; 1184 } 1185 1186 /* do_setsockopt() Must return target values and target errnos. */ 1187 static abi_long do_setsockopt(int sockfd, int level, int optname, 1188 abi_ulong optval_addr, socklen_t optlen) 1189 { 1190 abi_long ret; 1191 int val; 1192 struct ip_mreqn *ip_mreq; 1193 struct ip_mreq_source *ip_mreq_source; 1194 1195 switch(level) { 1196 case SOL_TCP: 1197 /* TCP options all take an 'int' value. */ 1198 if (optlen < sizeof(uint32_t)) 1199 return -TARGET_EINVAL; 1200 1201 if (get_user_u32(val, optval_addr)) 1202 return -TARGET_EFAULT; 1203 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val))); 1204 break; 1205 case SOL_IP: 1206 switch(optname) { 1207 case IP_TOS: 1208 case IP_TTL: 1209 case IP_HDRINCL: 1210 case IP_ROUTER_ALERT: 1211 case IP_RECVOPTS: 1212 case IP_RETOPTS: 1213 case IP_PKTINFO: 1214 case IP_MTU_DISCOVER: 1215 case IP_RECVERR: 1216 case IP_RECVTOS: 1217 #ifdef IP_FREEBIND 1218 case IP_FREEBIND: 1219 #endif 1220 case IP_MULTICAST_TTL: 1221 case IP_MULTICAST_LOOP: 1222 val = 0; 1223 if (optlen >= sizeof(uint32_t)) { 1224 if (get_user_u32(val, optval_addr)) 1225 return -TARGET_EFAULT; 1226 } else if (optlen >= 1) { 1227 if (get_user_u8(val, optval_addr)) 1228 return -TARGET_EFAULT; 1229 } 1230 ret = get_errno(setsockopt(sockfd, level, optname, &val, sizeof(val))); 1231 break; 1232 case IP_ADD_MEMBERSHIP: 1233 case IP_DROP_MEMBERSHIP: 1234 if (optlen < sizeof (struct target_ip_mreq) || 1235 optlen > sizeof (struct target_ip_mreqn)) 1236 return -TARGET_EINVAL; 1237 1238 ip_mreq = (struct ip_mreqn *) alloca(optlen); 1239 target_to_host_ip_mreq(ip_mreq, optval_addr, optlen); 1240 ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq, optlen)); 1241 break; 1242 1243 case IP_BLOCK_SOURCE: 1244 case IP_UNBLOCK_SOURCE: 1245 case IP_ADD_SOURCE_MEMBERSHIP: 1246 case IP_DROP_SOURCE_MEMBERSHIP: 1247 if (optlen != sizeof (struct target_ip_mreq_source)) 1248 return -TARGET_EINVAL; 1249 1250 ip_mreq_source = lock_user(VERIFY_READ, optval_addr, optlen, 1); 1251 ret = get_errno(setsockopt(sockfd, level, optname, ip_mreq_source, optlen)); 1252 unlock_user (ip_mreq_source, optval_addr, 0); 1253 break; 1254 1255 default: 1256 goto unimplemented; 1257 } 1258 break; 1259 case TARGET_SOL_SOCKET: 1260 switch (optname) { 1261 /* Options with 'int' argument. */ 1262 case TARGET_SO_DEBUG: 1263 optname = SO_DEBUG; 1264 break; 1265 case TARGET_SO_REUSEADDR: 1266 optname = SO_REUSEADDR; 1267 break; 1268 case TARGET_SO_TYPE: 1269 optname = SO_TYPE; 1270 break; 1271 case TARGET_SO_ERROR: 1272 optname = SO_ERROR; 1273 break; 1274 case TARGET_SO_DONTROUTE: 1275 optname = SO_DONTROUTE; 1276 break; 1277 case TARGET_SO_BROADCAST: 1278 optname = SO_BROADCAST; 1279 break; 1280 case TARGET_SO_SNDBUF: 1281 optname = SO_SNDBUF; 1282 break; 1283 case TARGET_SO_RCVBUF: 1284 optname = SO_RCVBUF; 1285 break; 1286 case TARGET_SO_KEEPALIVE: 1287 optname = SO_KEEPALIVE; 1288 break; 1289 case TARGET_SO_OOBINLINE: 1290 optname = SO_OOBINLINE; 1291 break; 1292 case TARGET_SO_NO_CHECK: 1293 optname = SO_NO_CHECK; 1294 break; 1295 case TARGET_SO_PRIORITY: 1296 optname = SO_PRIORITY; 1297 break; 1298 #ifdef SO_BSDCOMPAT 1299 case TARGET_SO_BSDCOMPAT: 1300 optname = SO_BSDCOMPAT; 1301 break; 1302 #endif 1303 case TARGET_SO_PASSCRED: 1304 optname = SO_PASSCRED; 1305 break; 1306 case TARGET_SO_TIMESTAMP: 1307 optname = SO_TIMESTAMP; 1308 break; 1309 case TARGET_SO_RCVLOWAT: 1310 optname = SO_RCVLOWAT; 1311 break; 1312 case TARGET_SO_RCVTIMEO: 1313 optname = SO_RCVTIMEO; 1314 break; 1315 case TARGET_SO_SNDTIMEO: 1316 optname = SO_SNDTIMEO; 1317 break; 1318 break; 1319 default: 1320 goto unimplemented; 1321 } 1322 if (optlen < sizeof(uint32_t)) 1323 return -TARGET_EINVAL; 1324 1325 if (get_user_u32(val, optval_addr)) 1326 return -TARGET_EFAULT; 1327 ret = get_errno(setsockopt(sockfd, SOL_SOCKET, optname, &val, sizeof(val))); 1328 break; 1329 default: 1330 unimplemented: 1331 gemu_log("Unsupported setsockopt level=%d optname=%d \n", level, optname); 1332 ret = -TARGET_ENOPROTOOPT; 1333 } 1334 return ret; 1335 } 1336 1337 /* do_getsockopt() Must return target values and target errnos. */ 1338 static abi_long do_getsockopt(int sockfd, int level, int optname, 1339 abi_ulong optval_addr, abi_ulong optlen) 1340 { 1341 abi_long ret; 1342 int len, val; 1343 socklen_t lv; 1344 1345 switch(level) { 1346 case TARGET_SOL_SOCKET: 1347 level = SOL_SOCKET; 1348 switch (optname) { 1349 case TARGET_SO_LINGER: 1350 case TARGET_SO_RCVTIMEO: 1351 case TARGET_SO_SNDTIMEO: 1352 case TARGET_SO_PEERCRED: 1353 case TARGET_SO_PEERNAME: 1354 /* These don't just return a single integer */ 1355 goto unimplemented; 1356 default: 1357 goto int_case; 1358 } 1359 break; 1360 case SOL_TCP: 1361 /* TCP options all take an 'int' value. */ 1362 int_case: 1363 if (get_user_u32(len, optlen)) 1364 return -TARGET_EFAULT; 1365 if (len < 0) 1366 return -TARGET_EINVAL; 1367 lv = sizeof(int); 1368 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv)); 1369 if (ret < 0) 1370 return ret; 1371 if (len > lv) 1372 len = lv; 1373 if (len == 4) { 1374 if (put_user_u32(val, optval_addr)) 1375 return -TARGET_EFAULT; 1376 } else { 1377 if (put_user_u8(val, optval_addr)) 1378 return -TARGET_EFAULT; 1379 } 1380 if (put_user_u32(len, optlen)) 1381 return -TARGET_EFAULT; 1382 break; 1383 case SOL_IP: 1384 switch(optname) { 1385 case IP_TOS: 1386 case IP_TTL: 1387 case IP_HDRINCL: 1388 case IP_ROUTER_ALERT: 1389 case IP_RECVOPTS: 1390 case IP_RETOPTS: 1391 case IP_PKTINFO: 1392 case IP_MTU_DISCOVER: 1393 case IP_RECVERR: 1394 case IP_RECVTOS: 1395 #ifdef IP_FREEBIND 1396 case IP_FREEBIND: 1397 #endif 1398 case IP_MULTICAST_TTL: 1399 case IP_MULTICAST_LOOP: 1400 if (get_user_u32(len, optlen)) 1401 return -TARGET_EFAULT; 1402 if (len < 0) 1403 return -TARGET_EINVAL; 1404 lv = sizeof(int); 1405 ret = get_errno(getsockopt(sockfd, level, optname, &val, &lv)); 1406 if (ret < 0) 1407 return ret; 1408 if (len < sizeof(int) && len > 0 && val >= 0 && val < 255) { 1409 len = 1; 1410 if (put_user_u32(len, optlen) 1411 || put_user_u8(val, optval_addr)) 1412 return -TARGET_EFAULT; 1413 } else { 1414 if (len > sizeof(int)) 1415 len = sizeof(int); 1416 if (put_user_u32(len, optlen) 1417 || put_user_u32(val, optval_addr)) 1418 return -TARGET_EFAULT; 1419 } 1420 break; 1421 default: 1422 ret = -TARGET_ENOPROTOOPT; 1423 break; 1424 } 1425 break; 1426 default: 1427 unimplemented: 1428 gemu_log("getsockopt level=%d optname=%d not yet supported\n", 1429 level, optname); 1430 ret = -TARGET_EOPNOTSUPP; 1431 break; 1432 } 1433 return ret; 1434 } 1435 1436 /* FIXME 1437 * lock_iovec()/unlock_iovec() have a return code of 0 for success where 1438 * other lock functions have a return code of 0 for failure. 1439 */ 1440 static abi_long lock_iovec(int type, struct iovec *vec, abi_ulong target_addr, 1441 int count, int copy) 1442 { 1443 struct target_iovec *target_vec; 1444 abi_ulong base; 1445 int i; 1446 1447 target_vec = lock_user(VERIFY_READ, target_addr, count * sizeof(struct target_iovec), 1); 1448 if (!target_vec) 1449 return -TARGET_EFAULT; 1450 for(i = 0;i < count; i++) { 1451 base = tswapl(target_vec[i].iov_base); 1452 vec[i].iov_len = tswapl(target_vec[i].iov_len); 1453 if (vec[i].iov_len != 0) { 1454 vec[i].iov_base = lock_user(type, base, vec[i].iov_len, copy); 1455 /* Don't check lock_user return value. We must call writev even 1456 if a element has invalid base address. */ 1457 } else { 1458 /* zero length pointer is ignored */ 1459 vec[i].iov_base = NULL; 1460 } 1461 } 1462 unlock_user (target_vec, target_addr, 0); 1463 return 0; 1464 } 1465 1466 static abi_long unlock_iovec(struct iovec *vec, abi_ulong target_addr, 1467 int count, int copy) 1468 { 1469 struct target_iovec *target_vec; 1470 abi_ulong base; 1471 int i; 1472 1473 target_vec = lock_user(VERIFY_READ, target_addr, count * sizeof(struct target_iovec), 1); 1474 if (!target_vec) 1475 return -TARGET_EFAULT; 1476 for(i = 0;i < count; i++) { 1477 if (target_vec[i].iov_base) { 1478 base = tswapl(target_vec[i].iov_base); 1479 unlock_user(vec[i].iov_base, base, copy ? vec[i].iov_len : 0); 1480 } 1481 } 1482 unlock_user (target_vec, target_addr, 0); 1483 1484 return 0; 1485 } 1486 1487 /* do_socket() Must return target values and target errnos. */ 1488 static abi_long do_socket(int domain, int type, int protocol) 1489 { 1490 #if defined(TARGET_MIPS) 1491 switch(type) { 1492 case TARGET_SOCK_DGRAM: 1493 type = SOCK_DGRAM; 1494 break; 1495 case TARGET_SOCK_STREAM: 1496 type = SOCK_STREAM; 1497 break; 1498 case TARGET_SOCK_RAW: 1499 type = SOCK_RAW; 1500 break; 1501 case TARGET_SOCK_RDM: 1502 type = SOCK_RDM; 1503 break; 1504 case TARGET_SOCK_SEQPACKET: 1505 type = SOCK_SEQPACKET; 1506 break; 1507 case TARGET_SOCK_PACKET: 1508 type = SOCK_PACKET; 1509 break; 1510 } 1511 #endif 1512 if (domain == PF_NETLINK) 1513 return -EAFNOSUPPORT; /* do not NETLINK socket connections possible */ 1514 return get_errno(socket(domain, type, protocol)); 1515 } 1516 1517 /* do_bind() Must return target values and target errnos. */ 1518 static abi_long do_bind(int sockfd, abi_ulong target_addr, 1519 socklen_t addrlen) 1520 { 1521 void *addr; 1522 abi_long ret; 1523 1524 if (addrlen < 0) 1525 return -TARGET_EINVAL; 1526 1527 addr = alloca(addrlen+1); 1528 1529 ret = target_to_host_sockaddr(addr, target_addr, addrlen); 1530 if (ret) 1531 return ret; 1532 1533 return get_errno(bind(sockfd, addr, addrlen)); 1534 } 1535 1536 /* do_connect() Must return target values and target errnos. */ 1537 static abi_long do_connect(int sockfd, abi_ulong target_addr, 1538 socklen_t addrlen) 1539 { 1540 void *addr; 1541 abi_long ret; 1542 1543 if (addrlen < 0) 1544 return -TARGET_EINVAL; 1545 1546 addr = alloca(addrlen); 1547 1548 ret = target_to_host_sockaddr(addr, target_addr, addrlen); 1549 if (ret) 1550 return ret; 1551 1552 return get_errno(connect(sockfd, addr, addrlen)); 1553 } 1554 1555 /* do_sendrecvmsg() Must return target values and target errnos. */ 1556 static abi_long do_sendrecvmsg(int fd, abi_ulong target_msg, 1557 int flags, int send) 1558 { 1559 abi_long ret, len; 1560 struct target_msghdr *msgp; 1561 struct msghdr msg; 1562 int count; 1563 struct iovec *vec; 1564 abi_ulong target_vec; 1565 1566 /* FIXME */ 1567 if (!lock_user_struct(send ? VERIFY_READ : VERIFY_WRITE, 1568 msgp, 1569 target_msg, 1570 send ? 1 : 0)) 1571 return -TARGET_EFAULT; 1572 if (msgp->msg_name) { 1573 msg.msg_namelen = tswap32(msgp->msg_namelen); 1574 msg.msg_name = alloca(msg.msg_namelen); 1575 ret = target_to_host_sockaddr(msg.msg_name, tswapl(msgp->msg_name), 1576 msg.msg_namelen); 1577 if (ret) { 1578 unlock_user_struct(msgp, target_msg, send ? 0 : 1); 1579 return ret; 1580 } 1581 } else { 1582 msg.msg_name = NULL; 1583 msg.msg_namelen = 0; 1584 } 1585 msg.msg_controllen = 2 * tswapl(msgp->msg_controllen); 1586 msg.msg_control = alloca(msg.msg_controllen); 1587 msg.msg_flags = tswap32(msgp->msg_flags); 1588 1589 count = tswapl(msgp->msg_iovlen); 1590 vec = alloca(count * sizeof(struct iovec)); 1591 target_vec = tswapl(msgp->msg_iov); 1592 lock_iovec(send ? VERIFY_READ : VERIFY_WRITE, vec, target_vec, count, send); 1593 msg.msg_iovlen = count; 1594 msg.msg_iov = vec; 1595 1596 if (send) { 1597 ret = target_to_host_cmsg(&msg, msgp); 1598 if (ret == 0) 1599 ret = get_errno(sendmsg(fd, &msg, flags)); 1600 } else { 1601 ret = get_errno(recvmsg(fd, &msg, flags)); 1602 if (!is_error(ret)) { 1603 len = ret; 1604 ret = host_to_target_cmsg(msgp, &msg); 1605 if (!is_error(ret)) 1606 ret = len; 1607 } 1608 } 1609 unlock_iovec(vec, target_vec, count, !send); 1610 unlock_user_struct(msgp, target_msg, send ? 0 : 1); 1611 return ret; 1612 } 1613 1614 /* do_accept() Must return target values and target errnos. */ 1615 static abi_long do_accept(int fd, abi_ulong target_addr, 1616 abi_ulong target_addrlen_addr) 1617 { 1618 socklen_t addrlen; 1619 void *addr; 1620 abi_long ret; 1621 1622 if (target_addr == 0) 1623 return get_errno(accept(fd, NULL, NULL)); 1624 1625 /* linux returns EINVAL if addrlen pointer is invalid */ 1626 if (get_user_u32(addrlen, target_addrlen_addr)) 1627 return -TARGET_EINVAL; 1628 1629 if (addrlen < 0) 1630 return -TARGET_EINVAL; 1631 1632 if (!access_ok(VERIFY_WRITE, target_addr, addrlen)) 1633 return -TARGET_EINVAL; 1634 1635 addr = alloca(addrlen); 1636 1637 ret = get_errno(accept(fd, addr, &addrlen)); 1638 if (!is_error(ret)) { 1639 host_to_target_sockaddr(target_addr, addr, addrlen); 1640 if (put_user_u32(addrlen, target_addrlen_addr)) 1641 ret = -TARGET_EFAULT; 1642 } 1643 return ret; 1644 } 1645 1646 /* do_getpeername() Must return target values and target errnos. */ 1647 static abi_long do_getpeername(int fd, abi_ulong target_addr, 1648 abi_ulong target_addrlen_addr) 1649 { 1650 socklen_t addrlen; 1651 void *addr; 1652 abi_long ret; 1653 1654 if (get_user_u32(addrlen, target_addrlen_addr)) 1655 return -TARGET_EFAULT; 1656 1657 if (addrlen < 0) 1658 return -TARGET_EINVAL; 1659 1660 if (!access_ok(VERIFY_WRITE, target_addr, addrlen)) 1661 return -TARGET_EFAULT; 1662 1663 addr = alloca(addrlen); 1664 1665 ret = get_errno(getpeername(fd, addr, &addrlen)); 1666 if (!is_error(ret)) { 1667 host_to_target_sockaddr(target_addr, addr, addrlen); 1668 if (put_user_u32(addrlen, target_addrlen_addr)) 1669 ret = -TARGET_EFAULT; 1670 } 1671 return ret; 1672 } 1673 1674 /* do_getsockname() Must return target values and target errnos. */ 1675 static abi_long do_getsockname(int fd, abi_ulong target_addr, 1676 abi_ulong target_addrlen_addr) 1677 { 1678 socklen_t addrlen; 1679 void *addr; 1680 abi_long ret; 1681 1682 if (get_user_u32(addrlen, target_addrlen_addr)) 1683 return -TARGET_EFAULT; 1684 1685 if (addrlen < 0) 1686 return -TARGET_EINVAL; 1687 1688 if (!access_ok(VERIFY_WRITE, target_addr, addrlen)) 1689 return -TARGET_EFAULT; 1690 1691 addr = alloca(addrlen); 1692 1693 ret = get_errno(getsockname(fd, addr, &addrlen)); 1694 if (!is_error(ret)) { 1695 host_to_target_sockaddr(target_addr, addr, addrlen); 1696 if (put_user_u32(addrlen, target_addrlen_addr)) 1697 ret = -TARGET_EFAULT; 1698 } 1699 return ret; 1700 } 1701 1702 /* do_socketpair() Must return target values and target errnos. */ 1703 static abi_long do_socketpair(int domain, int type, int protocol, 1704 abi_ulong target_tab_addr) 1705 { 1706 int tab[2]; 1707 abi_long ret; 1708 1709 ret = get_errno(socketpair(domain, type, protocol, tab)); 1710 if (!is_error(ret)) { 1711 if (put_user_s32(tab[0], target_tab_addr) 1712 || put_user_s32(tab[1], target_tab_addr + sizeof(tab[0]))) 1713 ret = -TARGET_EFAULT; 1714 } 1715 return ret; 1716 } 1717 1718 /* do_sendto() Must return target values and target errnos. */ 1719 static abi_long do_sendto(int fd, abi_ulong msg, size_t len, int flags, 1720 abi_ulong target_addr, socklen_t addrlen) 1721 { 1722 void *addr; 1723 void *host_msg; 1724 abi_long ret; 1725 1726 if (addrlen < 0) 1727 return -TARGET_EINVAL; 1728 1729 host_msg = lock_user(VERIFY_READ, msg, len, 1); 1730 if (!host_msg) 1731 return -TARGET_EFAULT; 1732 if (target_addr) { 1733 addr = alloca(addrlen); 1734 ret = target_to_host_sockaddr(addr, target_addr, addrlen); 1735 if (ret) { 1736 unlock_user(host_msg, msg, 0); 1737 return ret; 1738 } 1739 ret = get_errno(sendto(fd, host_msg, len, flags, addr, addrlen)); 1740 } else { 1741 ret = get_errno(send(fd, host_msg, len, flags)); 1742 } 1743 unlock_user(host_msg, msg, 0); 1744 return ret; 1745 } 1746 1747 /* do_recvfrom() Must return target values and target errnos. */ 1748 static abi_long do_recvfrom(int fd, abi_ulong msg, size_t len, int flags, 1749 abi_ulong target_addr, 1750 abi_ulong target_addrlen) 1751 { 1752 socklen_t addrlen; 1753 void *addr; 1754 void *host_msg; 1755 abi_long ret; 1756 1757 host_msg = lock_user(VERIFY_WRITE, msg, len, 0); 1758 if (!host_msg) 1759 return -TARGET_EFAULT; 1760 if (target_addr) { 1761 if (get_user_u32(addrlen, target_addrlen)) { 1762 ret = -TARGET_EFAULT; 1763 goto fail; 1764 } 1765 if (addrlen < 0) { 1766 ret = -TARGET_EINVAL; 1767 goto fail; 1768 } 1769 addr = alloca(addrlen); 1770 ret = get_errno(recvfrom(fd, host_msg, len, flags, addr, &addrlen)); 1771 } else { 1772 addr = NULL; /* To keep compiler quiet. */ 1773 ret = get_errno(recv(fd, host_msg, len, flags)); 1774 } 1775 if (!is_error(ret)) { 1776 if (target_addr) { 1777 host_to_target_sockaddr(target_addr, addr, addrlen); 1778 if (put_user_u32(addrlen, target_addrlen)) { 1779 ret = -TARGET_EFAULT; 1780 goto fail; 1781 } 1782 } 1783 unlock_user(host_msg, msg, len); 1784 } else { 1785 fail: 1786 unlock_user(host_msg, msg, 0); 1787 } 1788 return ret; 1789 } 1790 1791 #ifdef TARGET_NR_socketcall 1792 /* do_socketcall() Must return target values and target errnos. */ 1793 static abi_long do_socketcall(int num, abi_ulong vptr) 1794 { 1795 abi_long ret; 1796 const int n = sizeof(abi_ulong); 1797 1798 switch(num) { 1799 case SOCKOP_socket: 1800 { 1801 abi_ulong domain, type, protocol; 1802 1803 if (get_user_ual(domain, vptr) 1804 || get_user_ual(type, vptr + n) 1805 || get_user_ual(protocol, vptr + 2 * n)) 1806 return -TARGET_EFAULT; 1807 1808 ret = do_socket(domain, type, protocol); 1809 } 1810 break; 1811 case SOCKOP_bind: 1812 { 1813 abi_ulong sockfd; 1814 abi_ulong target_addr; 1815 socklen_t addrlen; 1816 1817 if (get_user_ual(sockfd, vptr) 1818 || get_user_ual(target_addr, vptr + n) 1819 || get_user_ual(addrlen, vptr + 2 * n)) 1820 return -TARGET_EFAULT; 1821 1822 ret = do_bind(sockfd, target_addr, addrlen); 1823 } 1824 break; 1825 case SOCKOP_connect: 1826 { 1827 abi_ulong sockfd; 1828 abi_ulong target_addr; 1829 socklen_t addrlen; 1830 1831 if (get_user_ual(sockfd, vptr) 1832 || get_user_ual(target_addr, vptr + n) 1833 || get_user_ual(addrlen, vptr + 2 * n)) 1834 return -TARGET_EFAULT; 1835 1836 ret = do_connect(sockfd, target_addr, addrlen); 1837 } 1838 break; 1839 case SOCKOP_listen: 1840 { 1841 abi_ulong sockfd, backlog; 1842 1843 if (get_user_ual(sockfd, vptr) 1844 || get_user_ual(backlog, vptr + n)) 1845 return -TARGET_EFAULT; 1846 1847 ret = get_errno(listen(sockfd, backlog)); 1848 } 1849 break; 1850 case SOCKOP_accept: 1851 { 1852 abi_ulong sockfd; 1853 abi_ulong target_addr, target_addrlen; 1854 1855 if (get_user_ual(sockfd, vptr) 1856 || get_user_ual(target_addr, vptr + n) 1857 || get_user_ual(target_addrlen, vptr + 2 * n)) 1858 return -TARGET_EFAULT; 1859 1860 ret = do_accept(sockfd, target_addr, target_addrlen); 1861 } 1862 break; 1863 case SOCKOP_getsockname: 1864 { 1865 abi_ulong sockfd; 1866 abi_ulong target_addr, target_addrlen; 1867 1868 if (get_user_ual(sockfd, vptr) 1869 || get_user_ual(target_addr, vptr + n) 1870 || get_user_ual(target_addrlen, vptr + 2 * n)) 1871 return -TARGET_EFAULT; 1872 1873 ret = do_getsockname(sockfd, target_addr, target_addrlen); 1874 } 1875 break; 1876 case SOCKOP_getpeername: 1877 { 1878 abi_ulong sockfd; 1879 abi_ulong target_addr, target_addrlen; 1880 1881 if (get_user_ual(sockfd, vptr) 1882 || get_user_ual(target_addr, vptr + n) 1883 || get_user_ual(target_addrlen, vptr + 2 * n)) 1884 return -TARGET_EFAULT; 1885 1886 ret = do_getpeername(sockfd, target_addr, target_addrlen); 1887 } 1888 break; 1889 case SOCKOP_socketpair: 1890 { 1891 abi_ulong domain, type, protocol; 1892 abi_ulong tab; 1893 1894 if (get_user_ual(domain, vptr) 1895 || get_user_ual(type, vptr + n) 1896 || get_user_ual(protocol, vptr + 2 * n) 1897 || get_user_ual(tab, vptr + 3 * n)) 1898 return -TARGET_EFAULT; 1899 1900 ret = do_socketpair(domain, type, protocol, tab); 1901 } 1902 break; 1903 case SOCKOP_send: 1904 { 1905 abi_ulong sockfd; 1906 abi_ulong msg; 1907 size_t len; 1908 abi_ulong flags; 1909 1910 if (get_user_ual(sockfd, vptr) 1911 || get_user_ual(msg, vptr + n) 1912 || get_user_ual(len, vptr + 2 * n) 1913 || get_user_ual(flags, vptr + 3 * n)) 1914 return -TARGET_EFAULT; 1915 1916 ret = do_sendto(sockfd, msg, len, flags, 0, 0); 1917 } 1918 break; 1919 case SOCKOP_recv: 1920 { 1921 abi_ulong sockfd; 1922 abi_ulong msg; 1923 size_t len; 1924 abi_ulong flags; 1925 1926 if (get_user_ual(sockfd, vptr) 1927 || get_user_ual(msg, vptr + n) 1928 || get_user_ual(len, vptr + 2 * n) 1929 || get_user_ual(flags, vptr + 3 * n)) 1930 return -TARGET_EFAULT; 1931 1932 ret = do_recvfrom(sockfd, msg, len, flags, 0, 0); 1933 } 1934 break; 1935 case SOCKOP_sendto: 1936 { 1937 abi_ulong sockfd; 1938 abi_ulong msg; 1939 size_t len; 1940 abi_ulong flags; 1941 abi_ulong addr; 1942 socklen_t addrlen; 1943 1944 if (get_user_ual(sockfd, vptr) 1945 || get_user_ual(msg, vptr + n) 1946 || get_user_ual(len, vptr + 2 * n) 1947 || get_user_ual(flags, vptr + 3 * n) 1948 || get_user_ual(addr, vptr + 4 * n) 1949 || get_user_ual(addrlen, vptr + 5 * n)) 1950 return -TARGET_EFAULT; 1951 1952 ret = do_sendto(sockfd, msg, len, flags, addr, addrlen); 1953 } 1954 break; 1955 case SOCKOP_recvfrom: 1956 { 1957 abi_ulong sockfd; 1958 abi_ulong msg; 1959 size_t len; 1960 abi_ulong flags; 1961 abi_ulong addr; 1962 socklen_t addrlen; 1963 1964 if (get_user_ual(sockfd, vptr) 1965 || get_user_ual(msg, vptr + n) 1966 || get_user_ual(len, vptr + 2 * n) 1967 || get_user_ual(flags, vptr + 3 * n) 1968 || get_user_ual(addr, vptr + 4 * n) 1969 || get_user_ual(addrlen, vptr + 5 * n)) 1970 return -TARGET_EFAULT; 1971 1972 ret = do_recvfrom(sockfd, msg, len, flags, addr, addrlen); 1973 } 1974 break; 1975 case SOCKOP_shutdown: 1976 { 1977 abi_ulong sockfd, how; 1978 1979 if (get_user_ual(sockfd, vptr) 1980 || get_user_ual(how, vptr + n)) 1981 return -TARGET_EFAULT; 1982 1983 ret = get_errno(shutdown(sockfd, how)); 1984 } 1985 break; 1986 case SOCKOP_sendmsg: 1987 case SOCKOP_recvmsg: 1988 { 1989 abi_ulong fd; 1990 abi_ulong target_msg; 1991 abi_ulong flags; 1992 1993 if (get_user_ual(fd, vptr) 1994 || get_user_ual(target_msg, vptr + n) 1995 || get_user_ual(flags, vptr + 2 * n)) 1996 return -TARGET_EFAULT; 1997 1998 ret = do_sendrecvmsg(fd, target_msg, flags, 1999 (num == SOCKOP_sendmsg)); 2000 } 2001 break; 2002 case SOCKOP_setsockopt: 2003 { 2004 abi_ulong sockfd; 2005 abi_ulong level; 2006 abi_ulong optname; 2007 abi_ulong optval; 2008 socklen_t optlen; 2009 2010 if (get_user_ual(sockfd, vptr) 2011 || get_user_ual(level, vptr + n) 2012 || get_user_ual(optname, vptr + 2 * n) 2013 || get_user_ual(optval, vptr + 3 * n) 2014 || get_user_ual(optlen, vptr + 4 * n)) 2015 return -TARGET_EFAULT; 2016 2017 ret = do_setsockopt(sockfd, level, optname, optval, optlen); 2018 } 2019 break; 2020 case SOCKOP_getsockopt: 2021 { 2022 abi_ulong sockfd; 2023 abi_ulong level; 2024 abi_ulong optname; 2025 abi_ulong optval; 2026 socklen_t optlen; 2027 2028 if (get_user_ual(sockfd, vptr) 2029 || get_user_ual(level, vptr + n) 2030 || get_user_ual(optname, vptr + 2 * n) 2031 || get_user_ual(optval, vptr + 3 * n) 2032 || get_user_ual(optlen, vptr + 4 * n)) 2033 return -TARGET_EFAULT; 2034 2035 ret = do_getsockopt(sockfd, level, optname, optval, optlen); 2036 } 2037 break; 2038 default: 2039 gemu_log("Unsupported socketcall: %d\n", num); 2040 ret = -TARGET_ENOSYS; 2041 break; 2042 } 2043 return ret; 2044 } 2045 #endif 2046 2047 #define N_SHM_REGIONS 32 2048 2049 static struct shm_region { 2050 abi_ulong start; 2051 abi_ulong size; 2052 } shm_regions[N_SHM_REGIONS]; 2053 2054 struct target_ipc_perm 2055 { 2056 abi_long __key; 2057 abi_ulong uid; 2058 abi_ulong gid; 2059 abi_ulong cuid; 2060 abi_ulong cgid; 2061 unsigned short int mode; 2062 unsigned short int __pad1; 2063 unsigned short int __seq; 2064 unsigned short int __pad2; 2065 abi_ulong __unused1; 2066 abi_ulong __unused2; 2067 }; 2068 2069 struct target_semid_ds 2070 { 2071 struct target_ipc_perm sem_perm; 2072 abi_ulong sem_otime; 2073 abi_ulong __unused1; 2074 abi_ulong sem_ctime; 2075 abi_ulong __unused2; 2076 abi_ulong sem_nsems; 2077 abi_ulong __unused3; 2078 abi_ulong __unused4; 2079 }; 2080 2081 static inline abi_long target_to_host_ipc_perm(struct ipc_perm *host_ip, 2082 abi_ulong target_addr) 2083 { 2084 struct target_ipc_perm *target_ip; 2085 struct target_semid_ds *target_sd; 2086 2087 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1)) 2088 return -TARGET_EFAULT; 2089 target_ip = &(target_sd->sem_perm); 2090 host_ip->__key = tswapl(target_ip->__key); 2091 host_ip->uid = tswapl(target_ip->uid); 2092 host_ip->gid = tswapl(target_ip->gid); 2093 host_ip->cuid = tswapl(target_ip->cuid); 2094 host_ip->cgid = tswapl(target_ip->cgid); 2095 host_ip->mode = tswapl(target_ip->mode); 2096 unlock_user_struct(target_sd, target_addr, 0); 2097 return 0; 2098 } 2099 2100 static inline abi_long host_to_target_ipc_perm(abi_ulong target_addr, 2101 struct ipc_perm *host_ip) 2102 { 2103 struct target_ipc_perm *target_ip; 2104 struct target_semid_ds *target_sd; 2105 2106 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0)) 2107 return -TARGET_EFAULT; 2108 target_ip = &(target_sd->sem_perm); 2109 target_ip->__key = tswapl(host_ip->__key); 2110 target_ip->uid = tswapl(host_ip->uid); 2111 target_ip->gid = tswapl(host_ip->gid); 2112 target_ip->cuid = tswapl(host_ip->cuid); 2113 target_ip->cgid = tswapl(host_ip->cgid); 2114 target_ip->mode = tswapl(host_ip->mode); 2115 unlock_user_struct(target_sd, target_addr, 1); 2116 return 0; 2117 } 2118 2119 static inline abi_long target_to_host_semid_ds(struct semid_ds *host_sd, 2120 abi_ulong target_addr) 2121 { 2122 struct target_semid_ds *target_sd; 2123 2124 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1)) 2125 return -TARGET_EFAULT; 2126 if (target_to_host_ipc_perm(&(host_sd->sem_perm),target_addr)) 2127 return -TARGET_EFAULT; 2128 host_sd->sem_nsems = tswapl(target_sd->sem_nsems); 2129 host_sd->sem_otime = tswapl(target_sd->sem_otime); 2130 host_sd->sem_ctime = tswapl(target_sd->sem_ctime); 2131 unlock_user_struct(target_sd, target_addr, 0); 2132 return 0; 2133 } 2134 2135 static inline abi_long host_to_target_semid_ds(abi_ulong target_addr, 2136 struct semid_ds *host_sd) 2137 { 2138 struct target_semid_ds *target_sd; 2139 2140 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0)) 2141 return -TARGET_EFAULT; 2142 if (host_to_target_ipc_perm(target_addr,&(host_sd->sem_perm))) 2143 return -TARGET_EFAULT;; 2144 target_sd->sem_nsems = tswapl(host_sd->sem_nsems); 2145 target_sd->sem_otime = tswapl(host_sd->sem_otime); 2146 target_sd->sem_ctime = tswapl(host_sd->sem_ctime); 2147 unlock_user_struct(target_sd, target_addr, 1); 2148 return 0; 2149 } 2150 2151 struct target_seminfo { 2152 int semmap; 2153 int semmni; 2154 int semmns; 2155 int semmnu; 2156 int semmsl; 2157 int semopm; 2158 int semume; 2159 int semusz; 2160 int semvmx; 2161 int semaem; 2162 }; 2163 2164 static inline abi_long host_to_target_seminfo(abi_ulong target_addr, 2165 struct seminfo *host_seminfo) 2166 { 2167 struct target_seminfo *target_seminfo; 2168 if (!lock_user_struct(VERIFY_WRITE, target_seminfo, target_addr, 0)) 2169 return -TARGET_EFAULT; 2170 __put_user(host_seminfo->semmap, &target_seminfo->semmap); 2171 __put_user(host_seminfo->semmni, &target_seminfo->semmni); 2172 __put_user(host_seminfo->semmns, &target_seminfo->semmns); 2173 __put_user(host_seminfo->semmnu, &target_seminfo->semmnu); 2174 __put_user(host_seminfo->semmsl, &target_seminfo->semmsl); 2175 __put_user(host_seminfo->semopm, &target_seminfo->semopm); 2176 __put_user(host_seminfo->semume, &target_seminfo->semume); 2177 __put_user(host_seminfo->semusz, &target_seminfo->semusz); 2178 __put_user(host_seminfo->semvmx, &target_seminfo->semvmx); 2179 __put_user(host_seminfo->semaem, &target_seminfo->semaem); 2180 unlock_user_struct(target_seminfo, target_addr, 1); 2181 return 0; 2182 } 2183 2184 union semun { 2185 int val; 2186 struct semid_ds *buf; 2187 unsigned short *array; 2188 struct seminfo *__buf; 2189 }; 2190 2191 union target_semun { 2192 int val; 2193 abi_ulong buf; 2194 abi_ulong array; 2195 abi_ulong __buf; 2196 }; 2197 2198 static inline abi_long target_to_host_semarray(int semid, unsigned short **host_array, 2199 abi_ulong target_addr) 2200 { 2201 int nsems; 2202 unsigned short *array; 2203 union semun semun; 2204 struct semid_ds semid_ds; 2205 int i, ret; 2206 2207 semun.buf = &semid_ds; 2208 2209 ret = semctl(semid, 0, IPC_STAT, semun); 2210 if (ret == -1) 2211 return get_errno(ret); 2212 2213 nsems = semid_ds.sem_nsems; 2214 2215 *host_array = malloc(nsems*sizeof(unsigned short)); 2216 array = lock_user(VERIFY_READ, target_addr, 2217 nsems*sizeof(unsigned short), 1); 2218 if (!array) 2219 return -TARGET_EFAULT; 2220 2221 for(i=0; i<nsems; i++) { 2222 __get_user((*host_array)[i], &array[i]); 2223 } 2224 unlock_user(array, target_addr, 0); 2225 2226 return 0; 2227 } 2228 2229 static inline abi_long host_to_target_semarray(int semid, abi_ulong target_addr, 2230 unsigned short **host_array) 2231 { 2232 int nsems; 2233 unsigned short *array; 2234 union semun semun; 2235 struct semid_ds semid_ds; 2236 int i, ret; 2237 2238 semun.buf = &semid_ds; 2239 2240 ret = semctl(semid, 0, IPC_STAT, semun); 2241 if (ret == -1) 2242 return get_errno(ret); 2243 2244 nsems = semid_ds.sem_nsems; 2245 2246 array = lock_user(VERIFY_WRITE, target_addr, 2247 nsems*sizeof(unsigned short), 0); 2248 if (!array) 2249 return -TARGET_EFAULT; 2250 2251 for(i=0; i<nsems; i++) { 2252 __put_user((*host_array)[i], &array[i]); 2253 } 2254 free(*host_array); 2255 unlock_user(array, target_addr, 1); 2256 2257 return 0; 2258 } 2259 2260 static inline abi_long do_semctl(int semid, int semnum, int cmd, 2261 union target_semun target_su) 2262 { 2263 union semun arg; 2264 struct semid_ds dsarg; 2265 unsigned short *array = NULL; 2266 struct seminfo seminfo; 2267 abi_long ret = -TARGET_EINVAL; 2268 abi_long err; 2269 cmd &= 0xff; 2270 2271 switch( cmd ) { 2272 case GETVAL: 2273 case SETVAL: 2274 arg.val = tswapl(target_su.val); 2275 ret = get_errno(semctl(semid, semnum, cmd, arg)); 2276 target_su.val = tswapl(arg.val); 2277 break; 2278 case GETALL: 2279 case SETALL: 2280 err = target_to_host_semarray(semid, &array, target_su.array); 2281 if (err) 2282 return err; 2283 arg.array = array; 2284 ret = get_errno(semctl(semid, semnum, cmd, arg)); 2285 err = host_to_target_semarray(semid, target_su.array, &array); 2286 if (err) 2287 return err; 2288 break; 2289 case IPC_STAT: 2290 case IPC_SET: 2291 case SEM_STAT: 2292 err = target_to_host_semid_ds(&dsarg, target_su.buf); 2293 if (err) 2294 return err; 2295 arg.buf = &dsarg; 2296 ret = get_errno(semctl(semid, semnum, cmd, arg)); 2297 err = host_to_target_semid_ds(target_su.buf, &dsarg); 2298 if (err) 2299 return err; 2300 break; 2301 case IPC_INFO: 2302 case SEM_INFO: 2303 arg.__buf = &seminfo; 2304 ret = get_errno(semctl(semid, semnum, cmd, arg)); 2305 err = host_to_target_seminfo(target_su.__buf, &seminfo); 2306 if (err) 2307 return err; 2308 break; 2309 case IPC_RMID: 2310 case GETPID: 2311 case GETNCNT: 2312 case GETZCNT: 2313 ret = get_errno(semctl(semid, semnum, cmd, NULL)); 2314 break; 2315 } 2316 2317 return ret; 2318 } 2319 2320 struct target_sembuf { 2321 unsigned short sem_num; 2322 short sem_op; 2323 short sem_flg; 2324 }; 2325 2326 static inline abi_long target_to_host_sembuf(struct sembuf *host_sembuf, 2327 abi_ulong target_addr, 2328 unsigned nsops) 2329 { 2330 struct target_sembuf *target_sembuf; 2331 int i; 2332 2333 target_sembuf = lock_user(VERIFY_READ, target_addr, 2334 nsops*sizeof(struct target_sembuf), 1); 2335 if (!target_sembuf) 2336 return -TARGET_EFAULT; 2337 2338 for(i=0; i<nsops; i++) { 2339 __get_user(host_sembuf[i].sem_num, &target_sembuf[i].sem_num); 2340 __get_user(host_sembuf[i].sem_op, &target_sembuf[i].sem_op); 2341 __get_user(host_sembuf[i].sem_flg, &target_sembuf[i].sem_flg); 2342 } 2343 2344 unlock_user(target_sembuf, target_addr, 0); 2345 2346 return 0; 2347 } 2348 2349 static inline abi_long do_semop(int semid, abi_long ptr, unsigned nsops) 2350 { 2351 struct sembuf sops[nsops]; 2352 2353 if (target_to_host_sembuf(sops, ptr, nsops)) 2354 return -TARGET_EFAULT; 2355 2356 return semop(semid, sops, nsops); 2357 } 2358 2359 struct target_msqid_ds 2360 { 2361 struct target_ipc_perm msg_perm; 2362 abi_ulong msg_stime; 2363 #if TARGET_ABI_BITS == 32 2364 abi_ulong __unused1; 2365 #endif 2366 abi_ulong msg_rtime; 2367 #if TARGET_ABI_BITS == 32 2368 abi_ulong __unused2; 2369 #endif 2370 abi_ulong msg_ctime; 2371 #if TARGET_ABI_BITS == 32 2372 abi_ulong __unused3; 2373 #endif 2374 abi_ulong __msg_cbytes; 2375 abi_ulong msg_qnum; 2376 abi_ulong msg_qbytes; 2377 abi_ulong msg_lspid; 2378 abi_ulong msg_lrpid; 2379 abi_ulong __unused4; 2380 abi_ulong __unused5; 2381 }; 2382 2383 static inline abi_long target_to_host_msqid_ds(struct msqid_ds *host_md, 2384 abi_ulong target_addr) 2385 { 2386 struct target_msqid_ds *target_md; 2387 2388 if (!lock_user_struct(VERIFY_READ, target_md, target_addr, 1)) 2389 return -TARGET_EFAULT; 2390 if (target_to_host_ipc_perm(&(host_md->msg_perm),target_addr)) 2391 return -TARGET_EFAULT; 2392 host_md->msg_stime = tswapl(target_md->msg_stime); 2393 host_md->msg_rtime = tswapl(target_md->msg_rtime); 2394 host_md->msg_ctime = tswapl(target_md->msg_ctime); 2395 host_md->__msg_cbytes = tswapl(target_md->__msg_cbytes); 2396 host_md->msg_qnum = tswapl(target_md->msg_qnum); 2397 host_md->msg_qbytes = tswapl(target_md->msg_qbytes); 2398 host_md->msg_lspid = tswapl(target_md->msg_lspid); 2399 host_md->msg_lrpid = tswapl(target_md->msg_lrpid); 2400 unlock_user_struct(target_md, target_addr, 0); 2401 return 0; 2402 } 2403 2404 static inline abi_long host_to_target_msqid_ds(abi_ulong target_addr, 2405 struct msqid_ds *host_md) 2406 { 2407 struct target_msqid_ds *target_md; 2408 2409 if (!lock_user_struct(VERIFY_WRITE, target_md, target_addr, 0)) 2410 return -TARGET_EFAULT; 2411 if (host_to_target_ipc_perm(target_addr,&(host_md->msg_perm))) 2412 return -TARGET_EFAULT; 2413 target_md->msg_stime = tswapl(host_md->msg_stime); 2414 target_md->msg_rtime = tswapl(host_md->msg_rtime); 2415 target_md->msg_ctime = tswapl(host_md->msg_ctime); 2416 target_md->__msg_cbytes = tswapl(host_md->__msg_cbytes); 2417 target_md->msg_qnum = tswapl(host_md->msg_qnum); 2418 target_md->msg_qbytes = tswapl(host_md->msg_qbytes); 2419 target_md->msg_lspid = tswapl(host_md->msg_lspid); 2420 target_md->msg_lrpid = tswapl(host_md->msg_lrpid); 2421 unlock_user_struct(target_md, target_addr, 1); 2422 return 0; 2423 } 2424 2425 struct target_msginfo { 2426 int msgpool; 2427 int msgmap; 2428 int msgmax; 2429 int msgmnb; 2430 int msgmni; 2431 int msgssz; 2432 int msgtql; 2433 unsigned short int msgseg; 2434 }; 2435 2436 static inline abi_long host_to_target_msginfo(abi_ulong target_addr, 2437 struct msginfo *host_msginfo) 2438 { 2439 struct target_msginfo *target_msginfo; 2440 if (!lock_user_struct(VERIFY_WRITE, target_msginfo, target_addr, 0)) 2441 return -TARGET_EFAULT; 2442 __put_user(host_msginfo->msgpool, &target_msginfo->msgpool); 2443 __put_user(host_msginfo->msgmap, &target_msginfo->msgmap); 2444 __put_user(host_msginfo->msgmax, &target_msginfo->msgmax); 2445 __put_user(host_msginfo->msgmnb, &target_msginfo->msgmnb); 2446 __put_user(host_msginfo->msgmni, &target_msginfo->msgmni); 2447 __put_user(host_msginfo->msgssz, &target_msginfo->msgssz); 2448 __put_user(host_msginfo->msgtql, &target_msginfo->msgtql); 2449 __put_user(host_msginfo->msgseg, &target_msginfo->msgseg); 2450 unlock_user_struct(target_msginfo, target_addr, 1); 2451 return 0; 2452 } 2453 2454 static inline abi_long do_msgctl(int msgid, int cmd, abi_long ptr) 2455 { 2456 struct msqid_ds dsarg; 2457 struct msginfo msginfo; 2458 abi_long ret = -TARGET_EINVAL; 2459 2460 cmd &= 0xff; 2461 2462 switch (cmd) { 2463 case IPC_STAT: 2464 case IPC_SET: 2465 case MSG_STAT: 2466 if (target_to_host_msqid_ds(&dsarg,ptr)) 2467 return -TARGET_EFAULT; 2468 ret = get_errno(msgctl(msgid, cmd, &dsarg)); 2469 if (host_to_target_msqid_ds(ptr,&dsarg)) 2470 return -TARGET_EFAULT; 2471 break; 2472 case IPC_RMID: 2473 ret = get_errno(msgctl(msgid, cmd, NULL)); 2474 break; 2475 case IPC_INFO: 2476 case MSG_INFO: 2477 ret = get_errno(msgctl(msgid, cmd, (struct msqid_ds *)&msginfo)); 2478 if (host_to_target_msginfo(ptr, &msginfo)) 2479 return -TARGET_EFAULT; 2480 break; 2481 } 2482 2483 return ret; 2484 } 2485 2486 struct target_msgbuf { 2487 abi_long mtype; 2488 char mtext[1]; 2489 }; 2490 2491 static inline abi_long do_msgsnd(int msqid, abi_long msgp, 2492 unsigned int msgsz, int msgflg) 2493 { 2494 struct target_msgbuf *target_mb; 2495 struct msgbuf *host_mb; 2496 abi_long ret = 0; 2497 2498 if (!lock_user_struct(VERIFY_READ, target_mb, msgp, 0)) 2499 return -TARGET_EFAULT; 2500 host_mb = malloc(msgsz+sizeof(long)); 2501 host_mb->mtype = (abi_long) tswapl(target_mb->mtype); 2502 memcpy(host_mb->mtext, target_mb->mtext, msgsz); 2503 ret = get_errno(msgsnd(msqid, host_mb, msgsz, msgflg)); 2504 free(host_mb); 2505 unlock_user_struct(target_mb, msgp, 0); 2506 2507 return ret; 2508 } 2509 2510 static inline abi_long do_msgrcv(int msqid, abi_long msgp, 2511 unsigned int msgsz, abi_long msgtyp, 2512 int msgflg) 2513 { 2514 struct target_msgbuf *target_mb; 2515 char *target_mtext; 2516 struct msgbuf *host_mb; 2517 abi_long ret = 0; 2518 2519 if (!lock_user_struct(VERIFY_WRITE, target_mb, msgp, 0)) 2520 return -TARGET_EFAULT; 2521 2522 host_mb = malloc(msgsz+sizeof(long)); 2523 ret = get_errno(msgrcv(msqid, host_mb, msgsz, tswapl(msgtyp), msgflg)); 2524 2525 if (ret > 0) { 2526 abi_ulong target_mtext_addr = msgp + sizeof(abi_ulong); 2527 target_mtext = lock_user(VERIFY_WRITE, target_mtext_addr, ret, 0); 2528 if (!target_mtext) { 2529 ret = -TARGET_EFAULT; 2530 goto end; 2531 } 2532 memcpy(target_mb->mtext, host_mb->mtext, ret); 2533 unlock_user(target_mtext, target_mtext_addr, ret); 2534 } 2535 2536 target_mb->mtype = tswapl(host_mb->mtype); 2537 free(host_mb); 2538 2539 end: 2540 if (target_mb) 2541 unlock_user_struct(target_mb, msgp, 1); 2542 return ret; 2543 } 2544 2545 struct target_shmid_ds 2546 { 2547 struct target_ipc_perm shm_perm; 2548 abi_ulong shm_segsz; 2549 abi_ulong shm_atime; 2550 #if TARGET_ABI_BITS == 32 2551 abi_ulong __unused1; 2552 #endif 2553 abi_ulong shm_dtime; 2554 #if TARGET_ABI_BITS == 32 2555 abi_ulong __unused2; 2556 #endif 2557 abi_ulong shm_ctime; 2558 #if TARGET_ABI_BITS == 32 2559 abi_ulong __unused3; 2560 #endif 2561 int shm_cpid; 2562 int shm_lpid; 2563 abi_ulong shm_nattch; 2564 unsigned long int __unused4; 2565 unsigned long int __unused5; 2566 }; 2567 2568 static inline abi_long target_to_host_shmid_ds(struct shmid_ds *host_sd, 2569 abi_ulong target_addr) 2570 { 2571 struct target_shmid_ds *target_sd; 2572 2573 if (!lock_user_struct(VERIFY_READ, target_sd, target_addr, 1)) 2574 return -TARGET_EFAULT; 2575 if (target_to_host_ipc_perm(&(host_sd->shm_perm), target_addr)) 2576 return -TARGET_EFAULT; 2577 __get_user(host_sd->shm_segsz, &target_sd->shm_segsz); 2578 __get_user(host_sd->shm_atime, &target_sd->shm_atime); 2579 __get_user(host_sd->shm_dtime, &target_sd->shm_dtime); 2580 __get_user(host_sd->shm_ctime, &target_sd->shm_ctime); 2581 __get_user(host_sd->shm_cpid, &target_sd->shm_cpid); 2582 __get_user(host_sd->shm_lpid, &target_sd->shm_lpid); 2583 __get_user(host_sd->shm_nattch, &target_sd->shm_nattch); 2584 unlock_user_struct(target_sd, target_addr, 0); 2585 return 0; 2586 } 2587 2588 static inline abi_long host_to_target_shmid_ds(abi_ulong target_addr, 2589 struct shmid_ds *host_sd) 2590 { 2591 struct target_shmid_ds *target_sd; 2592 2593 if (!lock_user_struct(VERIFY_WRITE, target_sd, target_addr, 0)) 2594 return -TARGET_EFAULT; 2595 if (host_to_target_ipc_perm(target_addr, &(host_sd->shm_perm))) 2596 return -TARGET_EFAULT; 2597 __put_user(host_sd->shm_segsz, &target_sd->shm_segsz); 2598 __put_user(host_sd->shm_atime, &target_sd->shm_atime); 2599 __put_user(host_sd->shm_dtime, &target_sd->shm_dtime); 2600 __put_user(host_sd->shm_ctime, &target_sd->shm_ctime); 2601 __put_user(host_sd->shm_cpid, &target_sd->shm_cpid); 2602 __put_user(host_sd->shm_lpid, &target_sd->shm_lpid); 2603 __put_user(host_sd->shm_nattch, &target_sd->shm_nattch); 2604 unlock_user_struct(target_sd, target_addr, 1); 2605 return 0; 2606 } 2607 2608 struct target_shminfo { 2609 abi_ulong shmmax; 2610 abi_ulong shmmin; 2611 abi_ulong shmmni; 2612 abi_ulong shmseg; 2613 abi_ulong shmall; 2614 }; 2615 2616 static inline abi_long host_to_target_shminfo(abi_ulong target_addr, 2617 struct shminfo *host_shminfo) 2618 { 2619 struct target_shminfo *target_shminfo; 2620 if (!lock_user_struct(VERIFY_WRITE, target_shminfo, target_addr, 0)) 2621 return -TARGET_EFAULT; 2622 __put_user(host_shminfo->shmmax, &target_shminfo->shmmax); 2623 __put_user(host_shminfo->shmmin, &target_shminfo->shmmin); 2624 __put_user(host_shminfo->shmmni, &target_shminfo->shmmni); 2625 __put_user(host_shminfo->shmseg, &target_shminfo->shmseg); 2626 __put_user(host_shminfo->shmall, &target_shminfo->shmall); 2627 unlock_user_struct(target_shminfo, target_addr, 1); 2628 return 0; 2629 } 2630 2631 struct target_shm_info { 2632 int used_ids; 2633 abi_ulong shm_tot; 2634 abi_ulong shm_rss; 2635 abi_ulong shm_swp; 2636 abi_ulong swap_attempts; 2637 abi_ulong swap_successes; 2638 }; 2639 2640 static inline abi_long host_to_target_shm_info(abi_ulong target_addr, 2641 struct shm_info *host_shm_info) 2642 { 2643 struct target_shm_info *target_shm_info; 2644 if (!lock_user_struct(VERIFY_WRITE, target_shm_info, target_addr, 0)) 2645 return -TARGET_EFAULT; 2646 __put_user(host_shm_info->used_ids, &target_shm_info->used_ids); 2647 __put_user(host_shm_info->shm_tot, &target_shm_info->shm_tot); 2648 __put_user(host_shm_info->shm_rss, &target_shm_info->shm_rss); 2649 __put_user(host_shm_info->shm_swp, &target_shm_info->shm_swp); 2650 __put_user(host_shm_info->swap_attempts, &target_shm_info->swap_attempts); 2651 __put_user(host_shm_info->swap_successes, &target_shm_info->swap_successes); 2652 unlock_user_struct(target_shm_info, target_addr, 1); 2653 return 0; 2654 } 2655 2656 static inline abi_long do_shmctl(int shmid, int cmd, abi_long buf) 2657 { 2658 struct shmid_ds dsarg; 2659 struct shminfo shminfo; 2660 struct shm_info shm_info; 2661 abi_long ret = -TARGET_EINVAL; 2662 2663 cmd &= 0xff; 2664 2665 switch(cmd) { 2666 case IPC_STAT: 2667 case IPC_SET: 2668 case SHM_STAT: 2669 if (target_to_host_shmid_ds(&dsarg, buf)) 2670 return -TARGET_EFAULT; 2671 ret = get_errno(shmctl(shmid, cmd, &dsarg)); 2672 if (host_to_target_shmid_ds(buf, &dsarg)) 2673 return -TARGET_EFAULT; 2674 break; 2675 case IPC_INFO: 2676 ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shminfo)); 2677 if (host_to_target_shminfo(buf, &shminfo)) 2678 return -TARGET_EFAULT; 2679 break; 2680 case SHM_INFO: 2681 ret = get_errno(shmctl(shmid, cmd, (struct shmid_ds *)&shm_info)); 2682 if (host_to_target_shm_info(buf, &shm_info)) 2683 return -TARGET_EFAULT; 2684 break; 2685 case IPC_RMID: 2686 case SHM_LOCK: 2687 case SHM_UNLOCK: 2688 ret = get_errno(shmctl(shmid, cmd, NULL)); 2689 break; 2690 } 2691 2692 return ret; 2693 } 2694 2695 static inline abi_ulong do_shmat(int shmid, abi_ulong shmaddr, int shmflg) 2696 { 2697 abi_long raddr; 2698 void *host_raddr; 2699 struct shmid_ds shm_info; 2700 int i,ret; 2701 2702 /* find out the length of the shared memory segment */ 2703 ret = get_errno(shmctl(shmid, IPC_STAT, &shm_info)); 2704 if (is_error(ret)) { 2705 /* can't get length, bail out */ 2706 return ret; 2707 } 2708 2709 mmap_lock(); 2710 2711 if (shmaddr) 2712 host_raddr = shmat(shmid, (void *)g2h(shmaddr), shmflg); 2713 else { 2714 abi_ulong mmap_start; 2715 2716 mmap_start = mmap_find_vma(0, shm_info.shm_segsz); 2717 2718 if (mmap_start == -1) { 2719 errno = ENOMEM; 2720 host_raddr = (void *)-1; 2721 } else 2722 host_raddr = shmat(shmid, g2h(mmap_start), shmflg | SHM_REMAP); 2723 } 2724 2725 if (host_raddr == (void *)-1) { 2726 mmap_unlock(); 2727 return get_errno((long)host_raddr); 2728 } 2729 raddr=h2g((unsigned long)host_raddr); 2730 2731 page_set_flags(raddr, raddr + shm_info.shm_segsz, 2732 PAGE_VALID | PAGE_READ | 2733 ((shmflg & SHM_RDONLY)? 0 : PAGE_WRITE)); 2734 2735 for (i = 0; i < N_SHM_REGIONS; i++) { 2736 if (shm_regions[i].start == 0) { 2737 shm_regions[i].start = raddr; 2738 shm_regions[i].size = shm_info.shm_segsz; 2739 break; 2740 } 2741 } 2742 2743 mmap_unlock(); 2744 return raddr; 2745 2746 } 2747 2748 static inline abi_long do_shmdt(abi_ulong shmaddr) 2749 { 2750 int i; 2751 2752 for (i = 0; i < N_SHM_REGIONS; ++i) { 2753 if (shm_regions[i].start == shmaddr) { 2754 shm_regions[i].start = 0; 2755 page_set_flags(shmaddr, shm_regions[i].size, 0); 2756 break; 2757 } 2758 } 2759 2760 return get_errno(shmdt(g2h(shmaddr))); 2761 } 2762 2763 #ifdef TARGET_NR_ipc 2764 /* ??? This only works with linear mappings. */ 2765 /* do_ipc() must return target values and target errnos. */ 2766 static abi_long do_ipc(unsigned int call, int first, 2767 int second, int third, 2768 abi_long ptr, abi_long fifth) 2769 { 2770 int version; 2771 abi_long ret = 0; 2772 2773 version = call >> 16; 2774 call &= 0xffff; 2775 2776 switch (call) { 2777 case IPCOP_semop: 2778 ret = do_semop(first, ptr, second); 2779 break; 2780 2781 case IPCOP_semget: 2782 ret = get_errno(semget(first, second, third)); 2783 break; 2784 2785 case IPCOP_semctl: 2786 ret = do_semctl(first, second, third, (union target_semun)(abi_ulong) ptr); 2787 break; 2788 2789 case IPCOP_msgget: 2790 ret = get_errno(msgget(first, second)); 2791 break; 2792 2793 case IPCOP_msgsnd: 2794 ret = do_msgsnd(first, ptr, second, third); 2795 break; 2796 2797 case IPCOP_msgctl: 2798 ret = do_msgctl(first, second, ptr); 2799 break; 2800 2801 case IPCOP_msgrcv: 2802 switch (version) { 2803 case 0: 2804 { 2805 struct target_ipc_kludge { 2806 abi_long msgp; 2807 abi_long msgtyp; 2808 } *tmp; 2809 2810 if (!lock_user_struct(VERIFY_READ, tmp, ptr, 1)) { 2811 ret = -TARGET_EFAULT; 2812 break; 2813 } 2814 2815 ret = do_msgrcv(first, tmp->msgp, second, tmp->msgtyp, third); 2816 2817 unlock_user_struct(tmp, ptr, 0); 2818 break; 2819 } 2820 default: 2821 ret = do_msgrcv(first, ptr, second, fifth, third); 2822 } 2823 break; 2824 2825 case IPCOP_shmat: 2826 switch (version) { 2827 default: 2828 { 2829 abi_ulong raddr; 2830 raddr = do_shmat(first, ptr, second); 2831 if (is_error(raddr)) 2832 return get_errno(raddr); 2833 if (put_user_ual(raddr, third)) 2834 return -TARGET_EFAULT; 2835 break; 2836 } 2837 case 1: 2838 ret = -TARGET_EINVAL; 2839 break; 2840 } 2841 break; 2842 case IPCOP_shmdt: 2843 ret = do_shmdt(ptr); 2844 break; 2845 2846 case IPCOP_shmget: 2847 /* IPC_* flag values are the same on all linux platforms */ 2848 ret = get_errno(shmget(first, second, third)); 2849 break; 2850 2851 /* IPC_* and SHM_* command values are the same on all linux platforms */ 2852 case IPCOP_shmctl: 2853 ret = do_shmctl(first, second, third); 2854 break; 2855 default: 2856 gemu_log("Unsupported ipc call: %d (version %d)\n", call, version); 2857 ret = -TARGET_ENOSYS; 2858 break; 2859 } 2860 return ret; 2861 } 2862 #endif 2863 2864 /* kernel structure types definitions */ 2865 #define IFNAMSIZ 16 2866 2867 #define STRUCT(name, ...) STRUCT_ ## name, 2868 #define STRUCT_SPECIAL(name) STRUCT_ ## name, 2869 enum { 2870 #include "syscall_types.h" 2871 }; 2872 #undef STRUCT 2873 #undef STRUCT_SPECIAL 2874 2875 #define STRUCT(name, ...) static const argtype struct_ ## name ## _def[] = { __VA_ARGS__, TYPE_NULL }; 2876 #define STRUCT_SPECIAL(name) 2877 #include "syscall_types.h" 2878 #undef STRUCT 2879 #undef STRUCT_SPECIAL 2880 2881 typedef struct IOCTLEntry { 2882 unsigned int target_cmd; 2883 unsigned int host_cmd; 2884 const char *name; 2885 int access; 2886 const argtype arg_type[5]; 2887 } IOCTLEntry; 2888 2889 #define IOC_R 0x0001 2890 #define IOC_W 0x0002 2891 #define IOC_RW (IOC_R | IOC_W) 2892 2893 #define MAX_STRUCT_SIZE 4096 2894 2895 static IOCTLEntry ioctl_entries[] = { 2896 #define IOCTL(cmd, access, ...) \ 2897 { TARGET_ ## cmd, cmd, #cmd, access, { __VA_ARGS__ } }, 2898 #include "ioctls.h" 2899 { 0, 0, }, 2900 }; 2901 2902 /* ??? Implement proper locking for ioctls. */ 2903 /* do_ioctl() Must return target values and target errnos. */ 2904 static abi_long do_ioctl(int fd, abi_long cmd, abi_long arg) 2905 { 2906 const IOCTLEntry *ie; 2907 const argtype *arg_type; 2908 abi_long ret; 2909 uint8_t buf_temp[MAX_STRUCT_SIZE]; 2910 int target_size; 2911 void *argptr; 2912 2913 ie = ioctl_entries; 2914 for(;;) { 2915 if (ie->target_cmd == 0) { 2916 gemu_log("Unsupported ioctl: cmd=0x%04lx\n", (long)cmd); 2917 return -TARGET_ENOSYS; 2918 } 2919 if (ie->target_cmd == cmd) 2920 break; 2921 ie++; 2922 } 2923 arg_type = ie->arg_type; 2924 #if defined(DEBUG) 2925 gemu_log("ioctl: cmd=0x%04lx (%s)\n", (long)cmd, ie->name); 2926 #endif 2927 switch(arg_type[0]) { 2928 case TYPE_NULL: 2929 /* no argument */ 2930 ret = get_errno(ioctl(fd, ie->host_cmd)); 2931 break; 2932 case TYPE_PTRVOID: 2933 case TYPE_INT: 2934 /* int argment */ 2935 ret = get_errno(ioctl(fd, ie->host_cmd, arg)); 2936 break; 2937 case TYPE_PTR: 2938 arg_type++; 2939 target_size = thunk_type_size(arg_type, 0); 2940 switch(ie->access) { 2941 case IOC_R: 2942 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 2943 if (!is_error(ret)) { 2944 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0); 2945 if (!argptr) 2946 return -TARGET_EFAULT; 2947 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET); 2948 unlock_user(argptr, arg, target_size); 2949 } 2950 break; 2951 case IOC_W: 2952 argptr = lock_user(VERIFY_READ, arg, target_size, 1); 2953 if (!argptr) 2954 return -TARGET_EFAULT; 2955 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST); 2956 unlock_user(argptr, arg, 0); 2957 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 2958 break; 2959 default: 2960 case IOC_RW: 2961 argptr = lock_user(VERIFY_READ, arg, target_size, 1); 2962 if (!argptr) 2963 return -TARGET_EFAULT; 2964 thunk_convert(buf_temp, argptr, arg_type, THUNK_HOST); 2965 unlock_user(argptr, arg, 0); 2966 ret = get_errno(ioctl(fd, ie->host_cmd, buf_temp)); 2967 if (!is_error(ret)) { 2968 argptr = lock_user(VERIFY_WRITE, arg, target_size, 0); 2969 if (!argptr) 2970 return -TARGET_EFAULT; 2971 thunk_convert(argptr, buf_temp, arg_type, THUNK_TARGET); 2972 unlock_user(argptr, arg, target_size); 2973 } 2974 break; 2975 } 2976 break; 2977 default: 2978 gemu_log("Unsupported ioctl type: cmd=0x%04lx type=%d\n", 2979 (long)cmd, arg_type[0]); 2980 ret = -TARGET_ENOSYS; 2981 break; 2982 } 2983 return ret; 2984 } 2985 2986 static const bitmask_transtbl iflag_tbl[] = { 2987 { TARGET_IGNBRK, TARGET_IGNBRK, IGNBRK, IGNBRK }, 2988 { TARGET_BRKINT, TARGET_BRKINT, BRKINT, BRKINT }, 2989 { TARGET_IGNPAR, TARGET_IGNPAR, IGNPAR, IGNPAR }, 2990 { TARGET_PARMRK, TARGET_PARMRK, PARMRK, PARMRK }, 2991 { TARGET_INPCK, TARGET_INPCK, INPCK, INPCK }, 2992 { TARGET_ISTRIP, TARGET_ISTRIP, ISTRIP, ISTRIP }, 2993 { TARGET_INLCR, TARGET_INLCR, INLCR, INLCR }, 2994 { TARGET_IGNCR, TARGET_IGNCR, IGNCR, IGNCR }, 2995 { TARGET_ICRNL, TARGET_ICRNL, ICRNL, ICRNL }, 2996 { TARGET_IUCLC, TARGET_IUCLC, IUCLC, IUCLC }, 2997 { TARGET_IXON, TARGET_IXON, IXON, IXON }, 2998 { TARGET_IXANY, TARGET_IXANY, IXANY, IXANY }, 2999 { TARGET_IXOFF, TARGET_IXOFF, IXOFF, IXOFF }, 3000 { TARGET_IMAXBEL, TARGET_IMAXBEL, IMAXBEL, IMAXBEL }, 3001 { 0, 0, 0, 0 } 3002 }; 3003 3004 static const bitmask_transtbl oflag_tbl[] = { 3005 { TARGET_OPOST, TARGET_OPOST, OPOST, OPOST }, 3006 { TARGET_OLCUC, TARGET_OLCUC, OLCUC, OLCUC }, 3007 { TARGET_ONLCR, TARGET_ONLCR, ONLCR, ONLCR }, 3008 { TARGET_OCRNL, TARGET_OCRNL, OCRNL, OCRNL }, 3009 { TARGET_ONOCR, TARGET_ONOCR, ONOCR, ONOCR }, 3010 { TARGET_ONLRET, TARGET_ONLRET, ONLRET, ONLRET }, 3011 { TARGET_OFILL, TARGET_OFILL, OFILL, OFILL }, 3012 { TARGET_OFDEL, TARGET_OFDEL, OFDEL, OFDEL }, 3013 { TARGET_NLDLY, TARGET_NL0, NLDLY, NL0 }, 3014 { TARGET_NLDLY, TARGET_NL1, NLDLY, NL1 }, 3015 { TARGET_CRDLY, TARGET_CR0, CRDLY, CR0 }, 3016 { TARGET_CRDLY, TARGET_CR1, CRDLY, CR1 }, 3017 { TARGET_CRDLY, TARGET_CR2, CRDLY, CR2 }, 3018 { TARGET_CRDLY, TARGET_CR3, CRDLY, CR3 }, 3019 { TARGET_TABDLY, TARGET_TAB0, TABDLY, TAB0 }, 3020 { TARGET_TABDLY, TARGET_TAB1, TABDLY, TAB1 }, 3021 { TARGET_TABDLY, TARGET_TAB2, TABDLY, TAB2 }, 3022 { TARGET_TABDLY, TARGET_TAB3, TABDLY, TAB3 }, 3023 { TARGET_BSDLY, TARGET_BS0, BSDLY, BS0 }, 3024 { TARGET_BSDLY, TARGET_BS1, BSDLY, BS1 }, 3025 { TARGET_VTDLY, TARGET_VT0, VTDLY, VT0 }, 3026 { TARGET_VTDLY, TARGET_VT1, VTDLY, VT1 }, 3027 { TARGET_FFDLY, TARGET_FF0, FFDLY, FF0 }, 3028 { TARGET_FFDLY, TARGET_FF1, FFDLY, FF1 }, 3029 { 0, 0, 0, 0 } 3030 }; 3031 3032 static const bitmask_transtbl cflag_tbl[] = { 3033 { TARGET_CBAUD, TARGET_B0, CBAUD, B0 }, 3034 { TARGET_CBAUD, TARGET_B50, CBAUD, B50 }, 3035 { TARGET_CBAUD, TARGET_B75, CBAUD, B75 }, 3036 { TARGET_CBAUD, TARGET_B110, CBAUD, B110 }, 3037 { TARGET_CBAUD, TARGET_B134, CBAUD, B134 }, 3038 { TARGET_CBAUD, TARGET_B150, CBAUD, B150 }, 3039 { TARGET_CBAUD, TARGET_B200, CBAUD, B200 }, 3040 { TARGET_CBAUD, TARGET_B300, CBAUD, B300 }, 3041 { TARGET_CBAUD, TARGET_B600, CBAUD, B600 }, 3042 { TARGET_CBAUD, TARGET_B1200, CBAUD, B1200 }, 3043 { TARGET_CBAUD, TARGET_B1800, CBAUD, B1800 }, 3044 { TARGET_CBAUD, TARGET_B2400, CBAUD, B2400 }, 3045 { TARGET_CBAUD, TARGET_B4800, CBAUD, B4800 }, 3046 { TARGET_CBAUD, TARGET_B9600, CBAUD, B9600 }, 3047 { TARGET_CBAUD, TARGET_B19200, CBAUD, B19200 }, 3048 { TARGET_CBAUD, TARGET_B38400, CBAUD, B38400 }, 3049 { TARGET_CBAUD, TARGET_B57600, CBAUD, B57600 }, 3050 { TARGET_CBAUD, TARGET_B115200, CBAUD, B115200 }, 3051 { TARGET_CBAUD, TARGET_B230400, CBAUD, B230400 }, 3052 { TARGET_CBAUD, TARGET_B460800, CBAUD, B460800 }, 3053 { TARGET_CSIZE, TARGET_CS5, CSIZE, CS5 }, 3054 { TARGET_CSIZE, TARGET_CS6, CSIZE, CS6 }, 3055 { TARGET_CSIZE, TARGET_CS7, CSIZE, CS7 }, 3056 { TARGET_CSIZE, TARGET_CS8, CSIZE, CS8 }, 3057 { TARGET_CSTOPB, TARGET_CSTOPB, CSTOPB, CSTOPB }, 3058 { TARGET_CREAD, TARGET_CREAD, CREAD, CREAD }, 3059 { TARGET_PARENB, TARGET_PARENB, PARENB, PARENB }, 3060 { TARGET_PARODD, TARGET_PARODD, PARODD, PARODD }, 3061 { TARGET_HUPCL, TARGET_HUPCL, HUPCL, HUPCL }, 3062 { TARGET_CLOCAL, TARGET_CLOCAL, CLOCAL, CLOCAL }, 3063 { TARGET_CRTSCTS, TARGET_CRTSCTS, CRTSCTS, CRTSCTS }, 3064 { 0, 0, 0, 0 } 3065 }; 3066 3067 static const bitmask_transtbl lflag_tbl[] = { 3068 { TARGET_ISIG, TARGET_ISIG, ISIG, ISIG }, 3069 { TARGET_ICANON, TARGET_ICANON, ICANON, ICANON }, 3070 { TARGET_XCASE, TARGET_XCASE, XCASE, XCASE }, 3071 { TARGET_ECHO, TARGET_ECHO, ECHO, ECHO }, 3072 { TARGET_ECHOE, TARGET_ECHOE, ECHOE, ECHOE }, 3073 { TARGET_ECHOK, TARGET_ECHOK, ECHOK, ECHOK }, 3074 { TARGET_ECHONL, TARGET_ECHONL, ECHONL, ECHONL }, 3075 { TARGET_NOFLSH, TARGET_NOFLSH, NOFLSH, NOFLSH }, 3076 { TARGET_TOSTOP, TARGET_TOSTOP, TOSTOP, TOSTOP }, 3077 { TARGET_ECHOCTL, TARGET_ECHOCTL, ECHOCTL, ECHOCTL }, 3078 { TARGET_ECHOPRT, TARGET_ECHOPRT, ECHOPRT, ECHOPRT }, 3079 { TARGET_ECHOKE, TARGET_ECHOKE, ECHOKE, ECHOKE }, 3080 { TARGET_FLUSHO, TARGET_FLUSHO, FLUSHO, FLUSHO }, 3081 { TARGET_PENDIN, TARGET_PENDIN, PENDIN, PENDIN }, 3082 { TARGET_IEXTEN, TARGET_IEXTEN, IEXTEN, IEXTEN }, 3083 { 0, 0, 0, 0 } 3084 }; 3085 3086 static void target_to_host_termios (void *dst, const void *src) 3087 { 3088 struct host_termios *host = dst; 3089 const struct target_termios *target = src; 3090 3091 host->c_iflag = 3092 target_to_host_bitmask(tswap32(target->c_iflag), iflag_tbl); 3093 host->c_oflag = 3094 target_to_host_bitmask(tswap32(target->c_oflag), oflag_tbl); 3095 host->c_cflag = 3096 target_to_host_bitmask(tswap32(target->c_cflag), cflag_tbl); 3097 host->c_lflag = 3098 target_to_host_bitmask(tswap32(target->c_lflag), lflag_tbl); 3099 host->c_line = target->c_line; 3100 3101 memset(host->c_cc, 0, sizeof(host->c_cc)); 3102 host->c_cc[VINTR] = target->c_cc[TARGET_VINTR]; 3103 host->c_cc[VQUIT] = target->c_cc[TARGET_VQUIT]; 3104 host->c_cc[VERASE] = target->c_cc[TARGET_VERASE]; 3105 host->c_cc[VKILL] = target->c_cc[TARGET_VKILL]; 3106 host->c_cc[VEOF] = target->c_cc[TARGET_VEOF]; 3107 host->c_cc[VTIME] = target->c_cc[TARGET_VTIME]; 3108 host->c_cc[VMIN] = target->c_cc[TARGET_VMIN]; 3109 host->c_cc[VSWTC] = target->c_cc[TARGET_VSWTC]; 3110 host->c_cc[VSTART] = target->c_cc[TARGET_VSTART]; 3111 host->c_cc[VSTOP] = target->c_cc[TARGET_VSTOP]; 3112 host->c_cc[VSUSP] = target->c_cc[TARGET_VSUSP]; 3113 host->c_cc[VEOL] = target->c_cc[TARGET_VEOL]; 3114 host->c_cc[VREPRINT] = target->c_cc[TARGET_VREPRINT]; 3115 host->c_cc[VDISCARD] = target->c_cc[TARGET_VDISCARD]; 3116 host->c_cc[VWERASE] = target->c_cc[TARGET_VWERASE]; 3117 host->c_cc[VLNEXT] = target->c_cc[TARGET_VLNEXT]; 3118 host->c_cc[VEOL2] = target->c_cc[TARGET_VEOL2]; 3119 } 3120 3121 static void host_to_target_termios (void *dst, const void *src) 3122 { 3123 struct target_termios *target = dst; 3124 const struct host_termios *host = src; 3125 3126 target->c_iflag = 3127 tswap32(host_to_target_bitmask(host->c_iflag, iflag_tbl)); 3128 target->c_oflag = 3129 tswap32(host_to_target_bitmask(host->c_oflag, oflag_tbl)); 3130 target->c_cflag = 3131 tswap32(host_to_target_bitmask(host->c_cflag, cflag_tbl)); 3132 target->c_lflag = 3133 tswap32(host_to_target_bitmask(host->c_lflag, lflag_tbl)); 3134 target->c_line = host->c_line; 3135 3136 memset(target->c_cc, 0, sizeof(target->c_cc)); 3137 target->c_cc[TARGET_VINTR] = host->c_cc[VINTR]; 3138 target->c_cc[TARGET_VQUIT] = host->c_cc[VQUIT]; 3139 target->c_cc[TARGET_VERASE] = host->c_cc[VERASE]; 3140 target->c_cc[TARGET_VKILL] = host->c_cc[VKILL]; 3141 target->c_cc[TARGET_VEOF] = host->c_cc[VEOF]; 3142 target->c_cc[TARGET_VTIME] = host->c_cc[VTIME]; 3143 target->c_cc[TARGET_VMIN] = host->c_cc[VMIN]; 3144 target->c_cc[TARGET_VSWTC] = host->c_cc[VSWTC]; 3145 target->c_cc[TARGET_VSTART] = host->c_cc[VSTART]; 3146 target->c_cc[TARGET_VSTOP] = host->c_cc[VSTOP]; 3147 target->c_cc[TARGET_VSUSP] = host->c_cc[VSUSP]; 3148 target->c_cc[TARGET_VEOL] = host->c_cc[VEOL]; 3149 target->c_cc[TARGET_VREPRINT] = host->c_cc[VREPRINT]; 3150 target->c_cc[TARGET_VDISCARD] = host->c_cc[VDISCARD]; 3151 target->c_cc[TARGET_VWERASE] = host->c_cc[VWERASE]; 3152 target->c_cc[TARGET_VLNEXT] = host->c_cc[VLNEXT]; 3153 target->c_cc[TARGET_VEOL2] = host->c_cc[VEOL2]; 3154 } 3155 3156 static const StructEntry struct_termios_def = { 3157 .convert = { host_to_target_termios, target_to_host_termios }, 3158 .size = { sizeof(struct target_termios), sizeof(struct host_termios) }, 3159 .align = { __alignof__(struct target_termios), __alignof__(struct host_termios) }, 3160 }; 3161 3162 static bitmask_transtbl mmap_flags_tbl[] = { 3163 { TARGET_MAP_SHARED, TARGET_MAP_SHARED, MAP_SHARED, MAP_SHARED }, 3164 { TARGET_MAP_PRIVATE, TARGET_MAP_PRIVATE, MAP_PRIVATE, MAP_PRIVATE }, 3165 { TARGET_MAP_FIXED, TARGET_MAP_FIXED, MAP_FIXED, MAP_FIXED }, 3166 { TARGET_MAP_ANONYMOUS, TARGET_MAP_ANONYMOUS, MAP_ANONYMOUS, MAP_ANONYMOUS }, 3167 { TARGET_MAP_GROWSDOWN, TARGET_MAP_GROWSDOWN, MAP_GROWSDOWN, MAP_GROWSDOWN }, 3168 { TARGET_MAP_DENYWRITE, TARGET_MAP_DENYWRITE, MAP_DENYWRITE, MAP_DENYWRITE }, 3169 { TARGET_MAP_EXECUTABLE, TARGET_MAP_EXECUTABLE, MAP_EXECUTABLE, MAP_EXECUTABLE }, 3170 { TARGET_MAP_LOCKED, TARGET_MAP_LOCKED, MAP_LOCKED, MAP_LOCKED }, 3171 { 0, 0, 0, 0 } 3172 }; 3173 3174 #if defined(TARGET_I386) 3175 3176 /* NOTE: there is really one LDT for all the threads */ 3177 static uint8_t *ldt_table; 3178 3179 static abi_long read_ldt(abi_ulong ptr, unsigned long bytecount) 3180 { 3181 int size; 3182 void *p; 3183 3184 if (!ldt_table) 3185 return 0; 3186 size = TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE; 3187 if (size > bytecount) 3188 size = bytecount; 3189 p = lock_user(VERIFY_WRITE, ptr, size, 0); 3190 if (!p) 3191 return -TARGET_EFAULT; 3192 /* ??? Should this by byteswapped? */ 3193 memcpy(p, ldt_table, size); 3194 unlock_user(p, ptr, size); 3195 return size; 3196 } 3197 3198 /* XXX: add locking support */ 3199 static abi_long write_ldt(CPUX86State *env, 3200 abi_ulong ptr, unsigned long bytecount, int oldmode) 3201 { 3202 struct target_modify_ldt_ldt_s ldt_info; 3203 struct target_modify_ldt_ldt_s *target_ldt_info; 3204 int seg_32bit, contents, read_exec_only, limit_in_pages; 3205 int seg_not_present, useable, lm; 3206 uint32_t *lp, entry_1, entry_2; 3207 3208 if (bytecount != sizeof(ldt_info)) 3209 return -TARGET_EINVAL; 3210 if (!lock_user_struct(VERIFY_READ, target_ldt_info, ptr, 1)) 3211 return -TARGET_EFAULT; 3212 ldt_info.entry_number = tswap32(target_ldt_info->entry_number); 3213 ldt_info.base_addr = tswapl(target_ldt_info->base_addr); 3214 ldt_info.limit = tswap32(target_ldt_info->limit); 3215 ldt_info.flags = tswap32(target_ldt_info->flags); 3216 unlock_user_struct(target_ldt_info, ptr, 0); 3217 3218 if (ldt_info.entry_number >= TARGET_LDT_ENTRIES) 3219 return -TARGET_EINVAL; 3220 seg_32bit = ldt_info.flags & 1; 3221 contents = (ldt_info.flags >> 1) & 3; 3222 read_exec_only = (ldt_info.flags >> 3) & 1; 3223 limit_in_pages = (ldt_info.flags >> 4) & 1; 3224 seg_not_present = (ldt_info.flags >> 5) & 1; 3225 useable = (ldt_info.flags >> 6) & 1; 3226 #ifdef TARGET_ABI32 3227 lm = 0; 3228 #else 3229 lm = (ldt_info.flags >> 7) & 1; 3230 #endif 3231 if (contents == 3) { 3232 if (oldmode) 3233 return -TARGET_EINVAL; 3234 if (seg_not_present == 0) 3235 return -TARGET_EINVAL; 3236 } 3237 /* allocate the LDT */ 3238 if (!ldt_table) { 3239 env->ldt.base = target_mmap(0, 3240 TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE, 3241 PROT_READ|PROT_WRITE, 3242 MAP_ANONYMOUS|MAP_PRIVATE, -1, 0); 3243 if (env->ldt.base == -1) 3244 return -TARGET_ENOMEM; 3245 memset(g2h(env->ldt.base), 0, 3246 TARGET_LDT_ENTRIES * TARGET_LDT_ENTRY_SIZE); 3247 env->ldt.limit = 0xffff; 3248 ldt_table = g2h(env->ldt.base); 3249 } 3250 3251 /* NOTE: same code as Linux kernel */ 3252 /* Allow LDTs to be cleared by the user. */ 3253 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) { 3254 if (oldmode || 3255 (contents == 0 && 3256 read_exec_only == 1 && 3257 seg_32bit == 0 && 3258 limit_in_pages == 0 && 3259 seg_not_present == 1 && 3260 useable == 0 )) { 3261 entry_1 = 0; 3262 entry_2 = 0; 3263 goto install; 3264 } 3265 } 3266 3267 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) | 3268 (ldt_info.limit & 0x0ffff); 3269 entry_2 = (ldt_info.base_addr & 0xff000000) | 3270 ((ldt_info.base_addr & 0x00ff0000) >> 16) | 3271 (ldt_info.limit & 0xf0000) | 3272 ((read_exec_only ^ 1) << 9) | 3273 (contents << 10) | 3274 ((seg_not_present ^ 1) << 15) | 3275 (seg_32bit << 22) | 3276 (limit_in_pages << 23) | 3277 (lm << 21) | 3278 0x7000; 3279 if (!oldmode) 3280 entry_2 |= (useable << 20); 3281 3282 /* Install the new entry ... */ 3283 install: 3284 lp = (uint32_t *)(ldt_table + (ldt_info.entry_number << 3)); 3285 lp[0] = tswap32(entry_1); 3286 lp[1] = tswap32(entry_2); 3287 return 0; 3288 } 3289 3290 /* specific and weird i386 syscalls */ 3291 static abi_long do_modify_ldt(CPUX86State *env, int func, abi_ulong ptr, 3292 unsigned long bytecount) 3293 { 3294 abi_long ret; 3295 3296 switch (func) { 3297 case 0: 3298 ret = read_ldt(ptr, bytecount); 3299 break; 3300 case 1: 3301 ret = write_ldt(env, ptr, bytecount, 1); 3302 break; 3303 case 0x11: 3304 ret = write_ldt(env, ptr, bytecount, 0); 3305 break; 3306 default: 3307 ret = -TARGET_ENOSYS; 3308 break; 3309 } 3310 return ret; 3311 } 3312 3313 #if defined(TARGET_I386) && defined(TARGET_ABI32) 3314 static abi_long do_set_thread_area(CPUX86State *env, abi_ulong ptr) 3315 { 3316 uint64_t *gdt_table = g2h(env->gdt.base); 3317 struct target_modify_ldt_ldt_s ldt_info; 3318 struct target_modify_ldt_ldt_s *target_ldt_info; 3319 int seg_32bit, contents, read_exec_only, limit_in_pages; 3320 int seg_not_present, useable, lm; 3321 uint32_t *lp, entry_1, entry_2; 3322 int i; 3323 3324 lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1); 3325 if (!target_ldt_info) 3326 return -TARGET_EFAULT; 3327 ldt_info.entry_number = tswap32(target_ldt_info->entry_number); 3328 ldt_info.base_addr = tswapl(target_ldt_info->base_addr); 3329 ldt_info.limit = tswap32(target_ldt_info->limit); 3330 ldt_info.flags = tswap32(target_ldt_info->flags); 3331 if (ldt_info.entry_number == -1) { 3332 for (i=TARGET_GDT_ENTRY_TLS_MIN; i<=TARGET_GDT_ENTRY_TLS_MAX; i++) { 3333 if (gdt_table[i] == 0) { 3334 ldt_info.entry_number = i; 3335 target_ldt_info->entry_number = tswap32(i); 3336 break; 3337 } 3338 } 3339 } 3340 unlock_user_struct(target_ldt_info, ptr, 1); 3341 3342 if (ldt_info.entry_number < TARGET_GDT_ENTRY_TLS_MIN || 3343 ldt_info.entry_number > TARGET_GDT_ENTRY_TLS_MAX) 3344 return -TARGET_EINVAL; 3345 seg_32bit = ldt_info.flags & 1; 3346 contents = (ldt_info.flags >> 1) & 3; 3347 read_exec_only = (ldt_info.flags >> 3) & 1; 3348 limit_in_pages = (ldt_info.flags >> 4) & 1; 3349 seg_not_present = (ldt_info.flags >> 5) & 1; 3350 useable = (ldt_info.flags >> 6) & 1; 3351 #ifdef TARGET_ABI32 3352 lm = 0; 3353 #else 3354 lm = (ldt_info.flags >> 7) & 1; 3355 #endif 3356 3357 if (contents == 3) { 3358 if (seg_not_present == 0) 3359 return -TARGET_EINVAL; 3360 } 3361 3362 /* NOTE: same code as Linux kernel */ 3363 /* Allow LDTs to be cleared by the user. */ 3364 if (ldt_info.base_addr == 0 && ldt_info.limit == 0) { 3365 if ((contents == 0 && 3366 read_exec_only == 1 && 3367 seg_32bit == 0 && 3368 limit_in_pages == 0 && 3369 seg_not_present == 1 && 3370 useable == 0 )) { 3371 entry_1 = 0; 3372 entry_2 = 0; 3373 goto install; 3374 } 3375 } 3376 3377 entry_1 = ((ldt_info.base_addr & 0x0000ffff) << 16) | 3378 (ldt_info.limit & 0x0ffff); 3379 entry_2 = (ldt_info.base_addr & 0xff000000) | 3380 ((ldt_info.base_addr & 0x00ff0000) >> 16) | 3381 (ldt_info.limit & 0xf0000) | 3382 ((read_exec_only ^ 1) << 9) | 3383 (contents << 10) | 3384 ((seg_not_present ^ 1) << 15) | 3385 (seg_32bit << 22) | 3386 (limit_in_pages << 23) | 3387 (useable << 20) | 3388 (lm << 21) | 3389 0x7000; 3390 3391 /* Install the new entry ... */ 3392 install: 3393 lp = (uint32_t *)(gdt_table + ldt_info.entry_number); 3394 lp[0] = tswap32(entry_1); 3395 lp[1] = tswap32(entry_2); 3396 return 0; 3397 } 3398 3399 static abi_long do_get_thread_area(CPUX86State *env, abi_ulong ptr) 3400 { 3401 struct target_modify_ldt_ldt_s *target_ldt_info; 3402 uint64_t *gdt_table = g2h(env->gdt.base); 3403 uint32_t base_addr, limit, flags; 3404 int seg_32bit, contents, read_exec_only, limit_in_pages, idx; 3405 int seg_not_present, useable, lm; 3406 uint32_t *lp, entry_1, entry_2; 3407 3408 lock_user_struct(VERIFY_WRITE, target_ldt_info, ptr, 1); 3409 if (!target_ldt_info) 3410 return -TARGET_EFAULT; 3411 idx = tswap32(target_ldt_info->entry_number); 3412 if (idx < TARGET_GDT_ENTRY_TLS_MIN || 3413 idx > TARGET_GDT_ENTRY_TLS_MAX) { 3414 unlock_user_struct(target_ldt_info, ptr, 1); 3415 return -TARGET_EINVAL; 3416 } 3417 lp = (uint32_t *)(gdt_table + idx); 3418 entry_1 = tswap32(lp[0]); 3419 entry_2 = tswap32(lp[1]); 3420 3421 read_exec_only = ((entry_2 >> 9) & 1) ^ 1; 3422 contents = (entry_2 >> 10) & 3; 3423 seg_not_present = ((entry_2 >> 15) & 1) ^ 1; 3424 seg_32bit = (entry_2 >> 22) & 1; 3425 limit_in_pages = (entry_2 >> 23) & 1; 3426 useable = (entry_2 >> 20) & 1; 3427 #ifdef TARGET_ABI32 3428 lm = 0; 3429 #else 3430 lm = (entry_2 >> 21) & 1; 3431 #endif 3432 flags = (seg_32bit << 0) | (contents << 1) | 3433 (read_exec_only << 3) | (limit_in_pages << 4) | 3434 (seg_not_present << 5) | (useable << 6) | (lm << 7); 3435 limit = (entry_1 & 0xffff) | (entry_2 & 0xf0000); 3436 base_addr = (entry_1 >> 16) | 3437 (entry_2 & 0xff000000) | 3438 ((entry_2 & 0xff) << 16); 3439 target_ldt_info->base_addr = tswapl(base_addr); 3440 target_ldt_info->limit = tswap32(limit); 3441 target_ldt_info->flags = tswap32(flags); 3442 unlock_user_struct(target_ldt_info, ptr, 1); 3443 return 0; 3444 } 3445 #endif /* TARGET_I386 && TARGET_ABI32 */ 3446 3447 #ifndef TARGET_ABI32 3448 static abi_long do_arch_prctl(CPUX86State *env, int code, abi_ulong addr) 3449 { 3450 abi_long ret; 3451 abi_ulong val; 3452 int idx; 3453 3454 switch(code) { 3455 case TARGET_ARCH_SET_GS: 3456 case TARGET_ARCH_SET_FS: 3457 if (code == TARGET_ARCH_SET_GS) 3458 idx = R_GS; 3459 else 3460 idx = R_FS; 3461 cpu_x86_load_seg(env, idx, 0); 3462 env->segs[idx].base = addr; 3463 break; 3464 case TARGET_ARCH_GET_GS: 3465 case TARGET_ARCH_GET_FS: 3466 if (code == TARGET_ARCH_GET_GS) 3467 idx = R_GS; 3468 else 3469 idx = R_FS; 3470 val = env->segs[idx].base; 3471 if (put_user(val, addr, abi_ulong)) 3472 return -TARGET_EFAULT; 3473 break; 3474 default: 3475 ret = -TARGET_EINVAL; 3476 break; 3477 } 3478 return 0; 3479 } 3480 #endif 3481 3482 #endif /* defined(TARGET_I386) */ 3483 3484 #if defined(CONFIG_USE_NPTL) 3485 3486 #define NEW_STACK_SIZE PTHREAD_STACK_MIN 3487 3488 static pthread_mutex_t clone_lock = PTHREAD_MUTEX_INITIALIZER; 3489 typedef struct { 3490 CPUState *env; 3491 pthread_mutex_t mutex; 3492 pthread_cond_t cond; 3493 pthread_t thread; 3494 uint32_t tid; 3495 abi_ulong child_tidptr; 3496 abi_ulong parent_tidptr; 3497 sigset_t sigmask; 3498 } new_thread_info; 3499 3500 static void *clone_func(void *arg) 3501 { 3502 new_thread_info *info = arg; 3503 CPUState *env; 3504 TaskState *ts; 3505 3506 env = info->env; 3507 thread_env = env; 3508 ts = (TaskState *)thread_env->opaque; 3509 info->tid = gettid(); 3510 env->host_tid = info->tid; 3511 task_settid(ts); 3512 if (info->child_tidptr) 3513 put_user_u32(info->tid, info->child_tidptr); 3514 if (info->parent_tidptr) 3515 put_user_u32(info->tid, info->parent_tidptr); 3516 /* Enable signals. */ 3517 sigprocmask(SIG_SETMASK, &info->sigmask, NULL); 3518 /* Signal to the parent that we're ready. */ 3519 pthread_mutex_lock(&info->mutex); 3520 pthread_cond_broadcast(&info->cond); 3521 pthread_mutex_unlock(&info->mutex); 3522 /* Wait until the parent has finshed initializing the tls state. */ 3523 pthread_mutex_lock(&clone_lock); 3524 pthread_mutex_unlock(&clone_lock); 3525 cpu_loop(env); 3526 /* never exits */ 3527 return NULL; 3528 } 3529 #else 3530 /* this stack is the equivalent of the kernel stack associated with a 3531 thread/process */ 3532 #define NEW_STACK_SIZE 8192 3533 3534 static int clone_func(void *arg) 3535 { 3536 CPUState *env = arg; 3537 cpu_loop(env); 3538 /* never exits */ 3539 return 0; 3540 } 3541 #endif 3542 3543 /* do_fork() Must return host values and target errnos (unlike most 3544 do_*() functions). */ 3545 static int do_fork(CPUState *env, unsigned int flags, abi_ulong newsp, 3546 abi_ulong parent_tidptr, target_ulong newtls, 3547 abi_ulong child_tidptr) 3548 { 3549 int ret; 3550 TaskState *ts; 3551 uint8_t *new_stack; 3552 CPUState *new_env; 3553 #if defined(CONFIG_USE_NPTL) 3554 unsigned int nptl_flags; 3555 sigset_t sigmask; 3556 #endif 3557 3558 /* Emulate vfork() with fork() */ 3559 if (flags & CLONE_VFORK) 3560 flags &= ~(CLONE_VFORK | CLONE_VM); 3561 3562 if (flags & CLONE_VM) { 3563 TaskState *parent_ts = (TaskState *)env->opaque; 3564 #if defined(CONFIG_USE_NPTL) 3565 new_thread_info info; 3566 pthread_attr_t attr; 3567 #endif 3568 ts = qemu_mallocz(sizeof(TaskState) + NEW_STACK_SIZE); 3569 init_task_state(ts); 3570 new_stack = ts->stack; 3571 /* we create a new CPU instance. */ 3572 new_env = cpu_copy(env); 3573 #if defined(TARGET_I386) || defined(TARGET_SPARC) || defined(TARGET_PPC) 3574 cpu_reset(new_env); 3575 #endif 3576 /* Init regs that differ from the parent. */ 3577 cpu_clone_regs(new_env, newsp); 3578 new_env->opaque = ts; 3579 ts->bprm = parent_ts->bprm; 3580 ts->info = parent_ts->info; 3581 #if defined(CONFIG_USE_NPTL) 3582 nptl_flags = flags; 3583 flags &= ~CLONE_NPTL_FLAGS2; 3584 3585 if (nptl_flags & CLONE_CHILD_CLEARTID) { 3586 ts->child_tidptr = child_tidptr; 3587 } 3588 3589 if (nptl_flags & CLONE_SETTLS) 3590 cpu_set_tls (new_env, newtls); 3591 3592 /* Grab a mutex so that thread setup appears atomic. */ 3593 pthread_mutex_lock(&clone_lock); 3594 3595 memset(&info, 0, sizeof(info)); 3596 pthread_mutex_init(&info.mutex, NULL); 3597 pthread_mutex_lock(&info.mutex); 3598 pthread_cond_init(&info.cond, NULL); 3599 info.env = new_env; 3600 if (nptl_flags & CLONE_CHILD_SETTID) 3601 info.child_tidptr = child_tidptr; 3602 if (nptl_flags & CLONE_PARENT_SETTID) 3603 info.parent_tidptr = parent_tidptr; 3604 3605 ret = pthread_attr_init(&attr); 3606 ret = pthread_attr_setstack(&attr, new_stack, NEW_STACK_SIZE); 3607 /* It is not safe to deliver signals until the child has finished 3608 initializing, so temporarily block all signals. */ 3609 sigfillset(&sigmask); 3610 sigprocmask(SIG_BLOCK, &sigmask, &info.sigmask); 3611 3612 ret = pthread_create(&info.thread, &attr, clone_func, &info); 3613 /* TODO: Free new CPU state if thread creation failed. */ 3614 3615 sigprocmask(SIG_SETMASK, &info.sigmask, NULL); 3616 pthread_attr_destroy(&attr); 3617 if (ret == 0) { 3618 /* Wait for the child to initialize. */ 3619 pthread_cond_wait(&info.cond, &info.mutex); 3620 ret = info.tid; 3621 if (flags & CLONE_PARENT_SETTID) 3622 put_user_u32(ret, parent_tidptr); 3623 } else { 3624 ret = -1; 3625 } 3626 pthread_mutex_unlock(&info.mutex); 3627 pthread_cond_destroy(&info.cond); 3628 pthread_mutex_destroy(&info.mutex); 3629 pthread_mutex_unlock(&clone_lock); 3630 #else 3631 if (flags & CLONE_NPTL_FLAGS2) 3632 return -EINVAL; 3633 /* This is probably going to die very quickly, but do it anyway. */ 3634 #ifdef __ia64__ 3635 ret = __clone2(clone_func, new_stack, NEW_STACK_SIZE, flags, new_env); 3636 #else 3637 ret = clone(clone_func, new_stack + NEW_STACK_SIZE, flags, new_env); 3638 #endif 3639 #endif 3640 } else { 3641 /* if no CLONE_VM, we consider it is a fork */ 3642 if ((flags & ~(CSIGNAL | CLONE_NPTL_FLAGS2)) != 0) 3643 return -EINVAL; 3644 fork_start(); 3645 ret = fork(); 3646 if (ret == 0) { 3647 /* Child Process. */ 3648 cpu_clone_regs(env, newsp); 3649 fork_end(1); 3650 #if defined(CONFIG_USE_NPTL) 3651 /* There is a race condition here. The parent process could 3652 theoretically read the TID in the child process before the child 3653 tid is set. This would require using either ptrace 3654 (not implemented) or having *_tidptr to point at a shared memory 3655 mapping. We can't repeat the spinlock hack used above because 3656 the child process gets its own copy of the lock. */ 3657 if (flags & CLONE_CHILD_SETTID) 3658 put_user_u32(gettid(), child_tidptr); 3659 if (flags & CLONE_PARENT_SETTID) 3660 put_user_u32(gettid(), parent_tidptr); 3661 ts = (TaskState *)env->opaque; 3662 if (flags & CLONE_SETTLS) 3663 cpu_set_tls (env, newtls); 3664 if (flags & CLONE_CHILD_CLEARTID) 3665 ts->child_tidptr = child_tidptr; 3666 #endif 3667 } else { 3668 fork_end(0); 3669 } 3670 } 3671 return ret; 3672 } 3673 3674 /* warning : doesn't handle linux specific flags... */ 3675 static int target_to_host_fcntl_cmd(int cmd) 3676 { 3677 switch(cmd) { 3678 case TARGET_F_DUPFD: 3679 case TARGET_F_GETFD: 3680 case TARGET_F_SETFD: 3681 case TARGET_F_GETFL: 3682 case TARGET_F_SETFL: 3683 return cmd; 3684 case TARGET_F_GETLK: 3685 return F_GETLK; 3686 case TARGET_F_SETLK: 3687 return F_SETLK; 3688 case TARGET_F_SETLKW: 3689 return F_SETLKW; 3690 case TARGET_F_GETOWN: 3691 return F_GETOWN; 3692 case TARGET_F_SETOWN: 3693 return F_SETOWN; 3694 case TARGET_F_GETSIG: 3695 return F_GETSIG; 3696 case TARGET_F_SETSIG: 3697 return F_SETSIG; 3698 #if TARGET_ABI_BITS == 32 3699 case TARGET_F_GETLK64: 3700 return F_GETLK64; 3701 case TARGET_F_SETLK64: 3702 return F_SETLK64; 3703 case TARGET_F_SETLKW64: 3704 return F_SETLKW64; 3705 #endif 3706 case TARGET_F_SETLEASE: 3707 return F_SETLEASE; 3708 case TARGET_F_GETLEASE: 3709 return F_GETLEASE; 3710 #ifdef F_DUPFD_CLOEXEC 3711 case TARGET_F_DUPFD_CLOEXEC: 3712 return F_DUPFD_CLOEXEC; 3713 #endif 3714 case TARGET_F_NOTIFY: 3715 return F_NOTIFY; 3716 default: 3717 return -TARGET_EINVAL; 3718 } 3719 return -TARGET_EINVAL; 3720 } 3721 3722 static abi_long do_fcntl(int fd, int cmd, abi_ulong arg) 3723 { 3724 struct flock fl; 3725 struct target_flock *target_fl; 3726 struct flock64 fl64; 3727 struct target_flock64 *target_fl64; 3728 abi_long ret; 3729 int host_cmd = target_to_host_fcntl_cmd(cmd); 3730 3731 if (host_cmd == -TARGET_EINVAL) 3732 return host_cmd; 3733 3734 switch(cmd) { 3735 case TARGET_F_GETLK: 3736 if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1)) 3737 return -TARGET_EFAULT; 3738 fl.l_type = tswap16(target_fl->l_type); 3739 fl.l_whence = tswap16(target_fl->l_whence); 3740 fl.l_start = tswapl(target_fl->l_start); 3741 fl.l_len = tswapl(target_fl->l_len); 3742 fl.l_pid = tswap32(target_fl->l_pid); 3743 unlock_user_struct(target_fl, arg, 0); 3744 ret = get_errno(fcntl(fd, host_cmd, &fl)); 3745 if (ret == 0) { 3746 if (!lock_user_struct(VERIFY_WRITE, target_fl, arg, 0)) 3747 return -TARGET_EFAULT; 3748 target_fl->l_type = tswap16(fl.l_type); 3749 target_fl->l_whence = tswap16(fl.l_whence); 3750 target_fl->l_start = tswapl(fl.l_start); 3751 target_fl->l_len = tswapl(fl.l_len); 3752 target_fl->l_pid = tswap32(fl.l_pid); 3753 unlock_user_struct(target_fl, arg, 1); 3754 } 3755 break; 3756 3757 case TARGET_F_SETLK: 3758 case TARGET_F_SETLKW: 3759 if (!lock_user_struct(VERIFY_READ, target_fl, arg, 1)) 3760 return -TARGET_EFAULT; 3761 fl.l_type = tswap16(target_fl->l_type); 3762 fl.l_whence = tswap16(target_fl->l_whence); 3763 fl.l_start = tswapl(target_fl->l_start); 3764 fl.l_len = tswapl(target_fl->l_len); 3765 fl.l_pid = tswap32(target_fl->l_pid); 3766 unlock_user_struct(target_fl, arg, 0); 3767 ret = get_errno(fcntl(fd, host_cmd, &fl)); 3768 break; 3769 3770 case TARGET_F_GETLK64: 3771 if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1)) 3772 return -TARGET_EFAULT; 3773 fl64.l_type = tswap16(target_fl64->l_type) >> 1; 3774 fl64.l_whence = tswap16(target_fl64->l_whence); 3775 fl64.l_start = tswapl(target_fl64->l_start); 3776 fl64.l_len = tswapl(target_fl64->l_len); 3777 fl64.l_pid = tswap32(target_fl64->l_pid); 3778 unlock_user_struct(target_fl64, arg, 0); 3779 ret = get_errno(fcntl(fd, host_cmd, &fl64)); 3780 if (ret == 0) { 3781 if (!lock_user_struct(VERIFY_WRITE, target_fl64, arg, 0)) 3782 return -TARGET_EFAULT; 3783 target_fl64->l_type = tswap16(fl64.l_type) >> 1; 3784 target_fl64->l_whence = tswap16(fl64.l_whence); 3785 target_fl64->l_start = tswapl(fl64.l_start); 3786 target_fl64->l_len = tswapl(fl64.l_len); 3787 target_fl64->l_pid = tswap32(fl64.l_pid); 3788 unlock_user_struct(target_fl64, arg, 1); 3789 } 3790 break; 3791 case TARGET_F_SETLK64: 3792 case TARGET_F_SETLKW64: 3793 if (!lock_user_struct(VERIFY_READ, target_fl64, arg, 1)) 3794 return -TARGET_EFAULT; 3795 fl64.l_type = tswap16(target_fl64->l_type) >> 1; 3796 fl64.l_whence = tswap16(target_fl64->l_whence); 3797 fl64.l_start = tswapl(target_fl64->l_start); 3798 fl64.l_len = tswapl(target_fl64->l_len); 3799 fl64.l_pid = tswap32(target_fl64->l_pid); 3800 unlock_user_struct(target_fl64, arg, 0); 3801 ret = get_errno(fcntl(fd, host_cmd, &fl64)); 3802 break; 3803 3804 case TARGET_F_GETFL: 3805 ret = get_errno(fcntl(fd, host_cmd, arg)); 3806 if (ret >= 0) { 3807 ret = host_to_target_bitmask(ret, fcntl_flags_tbl); 3808 } 3809 break; 3810 3811 case TARGET_F_SETFL: 3812 ret = get_errno(fcntl(fd, host_cmd, target_to_host_bitmask(arg, fcntl_flags_tbl))); 3813 break; 3814 3815 case TARGET_F_SETOWN: 3816 case TARGET_F_GETOWN: 3817 case TARGET_F_SETSIG: 3818 case TARGET_F_GETSIG: 3819 case TARGET_F_SETLEASE: 3820 case TARGET_F_GETLEASE: 3821 ret = get_errno(fcntl(fd, host_cmd, arg)); 3822 break; 3823 3824 default: 3825 ret = get_errno(fcntl(fd, cmd, arg)); 3826 break; 3827 } 3828 return ret; 3829 } 3830 3831 #ifdef USE_UID16 3832 3833 static inline int high2lowuid(int uid) 3834 { 3835 if (uid > 65535) 3836 return 65534; 3837 else 3838 return uid; 3839 } 3840 3841 static inline int high2lowgid(int gid) 3842 { 3843 if (gid > 65535) 3844 return 65534; 3845 else 3846 return gid; 3847 } 3848 3849 static inline int low2highuid(int uid) 3850 { 3851 if ((int16_t)uid == -1) 3852 return -1; 3853 else 3854 return uid; 3855 } 3856 3857 static inline int low2highgid(int gid) 3858 { 3859 if ((int16_t)gid == -1) 3860 return -1; 3861 else 3862 return gid; 3863 } 3864 3865 #endif /* USE_UID16 */ 3866 3867 void syscall_init(void) 3868 { 3869 IOCTLEntry *ie; 3870 const argtype *arg_type; 3871 int size; 3872 int i; 3873 3874 #define STRUCT(name, ...) thunk_register_struct(STRUCT_ ## name, #name, struct_ ## name ## _def); 3875 #define STRUCT_SPECIAL(name) thunk_register_struct_direct(STRUCT_ ## name, #name, &struct_ ## name ## _def); 3876 #include "syscall_types.h" 3877 #undef STRUCT 3878 #undef STRUCT_SPECIAL 3879 3880 /* we patch the ioctl size if necessary. We rely on the fact that 3881 no ioctl has all the bits at '1' in the size field */ 3882 ie = ioctl_entries; 3883 while (ie->target_cmd != 0) { 3884 if (((ie->target_cmd >> TARGET_IOC_SIZESHIFT) & TARGET_IOC_SIZEMASK) == 3885 TARGET_IOC_SIZEMASK) { 3886 arg_type = ie->arg_type; 3887 if (arg_type[0] != TYPE_PTR) { 3888 fprintf(stderr, "cannot patch size for ioctl 0x%x\n", 3889 ie->target_cmd); 3890 exit(1); 3891 } 3892 arg_type++; 3893 size = thunk_type_size(arg_type, 0); 3894 ie->target_cmd = (ie->target_cmd & 3895 ~(TARGET_IOC_SIZEMASK << TARGET_IOC_SIZESHIFT)) | 3896 (size << TARGET_IOC_SIZESHIFT); 3897 } 3898 3899 /* Build target_to_host_errno_table[] table from 3900 * host_to_target_errno_table[]. */ 3901 for (i=0; i < ERRNO_TABLE_SIZE; i++) 3902 target_to_host_errno_table[host_to_target_errno_table[i]] = i; 3903 3904 /* automatic consistency check if same arch */ 3905 #if (defined(__i386__) && defined(TARGET_I386) && defined(TARGET_ABI32)) || \ 3906 (defined(__x86_64__) && defined(TARGET_X86_64)) 3907 if (unlikely(ie->target_cmd != ie->host_cmd)) { 3908 fprintf(stderr, "ERROR: ioctl(%s): target=0x%x host=0x%x\n", 3909 ie->name, ie->target_cmd, ie->host_cmd); 3910 } 3911 #endif 3912 ie++; 3913 } 3914 } 3915 3916 #if TARGET_ABI_BITS == 32 3917 static inline uint64_t target_offset64(uint32_t word0, uint32_t word1) 3918 { 3919 #ifdef TARGET_WORDS_BIGENDIAN 3920 return ((uint64_t)word0 << 32) | word1; 3921 #else 3922 return ((uint64_t)word1 << 32) | word0; 3923 #endif 3924 } 3925 #else /* TARGET_ABI_BITS == 32 */ 3926 static inline uint64_t target_offset64(uint64_t word0, uint64_t word1) 3927 { 3928 return word0; 3929 } 3930 #endif /* TARGET_ABI_BITS != 32 */ 3931 3932 #ifdef TARGET_NR_truncate64 3933 static inline abi_long target_truncate64(void *cpu_env, const char *arg1, 3934 abi_long arg2, 3935 abi_long arg3, 3936 abi_long arg4) 3937 { 3938 #ifdef TARGET_ARM 3939 if (((CPUARMState *)cpu_env)->eabi) 3940 { 3941 arg2 = arg3; 3942 arg3 = arg4; 3943 } 3944 #endif 3945 return get_errno(truncate64(arg1, target_offset64(arg2, arg3))); 3946 } 3947 #endif 3948 3949 #ifdef TARGET_NR_ftruncate64 3950 static inline abi_long target_ftruncate64(void *cpu_env, abi_long arg1, 3951 abi_long arg2, 3952 abi_long arg3, 3953 abi_long arg4) 3954 { 3955 #ifdef TARGET_ARM 3956 if (((CPUARMState *)cpu_env)->eabi) 3957 { 3958 arg2 = arg3; 3959 arg3 = arg4; 3960 } 3961 #endif 3962 return get_errno(ftruncate64(arg1, target_offset64(arg2, arg3))); 3963 } 3964 #endif 3965 3966 static inline abi_long target_to_host_timespec(struct timespec *host_ts, 3967 abi_ulong target_addr) 3968 { 3969 struct target_timespec *target_ts; 3970 3971 if (!lock_user_struct(VERIFY_READ, target_ts, target_addr, 1)) 3972 return -TARGET_EFAULT; 3973 host_ts->tv_sec = tswapl(target_ts->tv_sec); 3974 host_ts->tv_nsec = tswapl(target_ts->tv_nsec); 3975 unlock_user_struct(target_ts, target_addr, 0); 3976 return 0; 3977 } 3978 3979 static inline abi_long host_to_target_timespec(abi_ulong target_addr, 3980 struct timespec *host_ts) 3981 { 3982 struct target_timespec *target_ts; 3983 3984 if (!lock_user_struct(VERIFY_WRITE, target_ts, target_addr, 0)) 3985 return -TARGET_EFAULT; 3986 target_ts->tv_sec = tswapl(host_ts->tv_sec); 3987 target_ts->tv_nsec = tswapl(host_ts->tv_nsec); 3988 unlock_user_struct(target_ts, target_addr, 1); 3989 return 0; 3990 } 3991 3992 #if defined(TARGET_NR_stat64) || defined(TARGET_NR_newfstatat) 3993 static inline abi_long host_to_target_stat64(void *cpu_env, 3994 abi_ulong target_addr, 3995 struct stat *host_st) 3996 { 3997 #ifdef TARGET_ARM 3998 if (((CPUARMState *)cpu_env)->eabi) { 3999 struct target_eabi_stat64 *target_st; 4000 4001 if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0)) 4002 return -TARGET_EFAULT; 4003 memset(target_st, 0, sizeof(struct target_eabi_stat64)); 4004 __put_user(host_st->st_dev, &target_st->st_dev); 4005 __put_user(host_st->st_ino, &target_st->st_ino); 4006 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO 4007 __put_user(host_st->st_ino, &target_st->__st_ino); 4008 #endif 4009 __put_user(host_st->st_mode, &target_st->st_mode); 4010 __put_user(host_st->st_nlink, &target_st->st_nlink); 4011 __put_user(host_st->st_uid, &target_st->st_uid); 4012 __put_user(host_st->st_gid, &target_st->st_gid); 4013 __put_user(host_st->st_rdev, &target_st->st_rdev); 4014 __put_user(host_st->st_size, &target_st->st_size); 4015 __put_user(host_st->st_blksize, &target_st->st_blksize); 4016 __put_user(host_st->st_blocks, &target_st->st_blocks); 4017 __put_user(host_st->st_atime, &target_st->target_st_atime); 4018 __put_user(host_st->st_mtime, &target_st->target_st_mtime); 4019 __put_user(host_st->st_ctime, &target_st->target_st_ctime); 4020 unlock_user_struct(target_st, target_addr, 1); 4021 } else 4022 #endif 4023 { 4024 #if (TARGET_LONG_BITS == 64) && (!defined(TARGET_ALPHA)) 4025 struct target_stat *target_st; 4026 #else 4027 struct target_stat64 *target_st; 4028 #endif 4029 4030 if (!lock_user_struct(VERIFY_WRITE, target_st, target_addr, 0)) 4031 return -TARGET_EFAULT; 4032 memset(target_st, 0, sizeof(*target_st)); 4033 __put_user(host_st->st_dev, &target_st->st_dev); 4034 __put_user(host_st->st_ino, &target_st->st_ino); 4035 #ifdef TARGET_STAT64_HAS_BROKEN_ST_INO 4036 __put_user(host_st->st_ino, &target_st->__st_ino); 4037 #endif 4038 __put_user(host_st->st_mode, &target_st->st_mode); 4039 __put_user(host_st->st_nlink, &target_st->st_nlink); 4040 __put_user(host_st->st_uid, &target_st->st_uid); 4041 __put_user(host_st->st_gid, &target_st->st_gid); 4042 __put_user(host_st->st_rdev, &target_st->st_rdev); 4043 /* XXX: better use of kernel struct */ 4044 __put_user(host_st->st_size, &target_st->st_size); 4045 __put_user(host_st->st_blksize, &target_st->st_blksize); 4046 __put_user(host_st->st_blocks, &target_st->st_blocks); 4047 __put_user(host_st->st_atime, &target_st->target_st_atime); 4048 __put_user(host_st->st_mtime, &target_st->target_st_mtime); 4049 __put_user(host_st->st_ctime, &target_st->target_st_ctime); 4050 unlock_user_struct(target_st, target_addr, 1); 4051 } 4052 4053 return 0; 4054 } 4055 #endif 4056 4057 #if defined(CONFIG_USE_NPTL) 4058 /* ??? Using host futex calls even when target atomic operations 4059 are not really atomic probably breaks things. However implementing 4060 futexes locally would make futexes shared between multiple processes 4061 tricky. However they're probably useless because guest atomic 4062 operations won't work either. */ 4063 static int do_futex(target_ulong uaddr, int op, int val, target_ulong timeout, 4064 target_ulong uaddr2, int val3) 4065 { 4066 struct timespec ts, *pts; 4067 int base_op; 4068 4069 /* ??? We assume FUTEX_* constants are the same on both host 4070 and target. */ 4071 #ifdef FUTEX_CMD_MASK 4072 base_op = op & FUTEX_CMD_MASK; 4073 #else 4074 base_op = op; 4075 #endif 4076 switch (base_op) { 4077 case FUTEX_WAIT: 4078 if (timeout) { 4079 pts = &ts; 4080 target_to_host_timespec(pts, timeout); 4081 } else { 4082 pts = NULL; 4083 } 4084 return get_errno(sys_futex(g2h(uaddr), op, tswap32(val), 4085 pts, NULL, 0)); 4086 case FUTEX_WAKE: 4087 return get_errno(sys_futex(g2h(uaddr), op, val, NULL, NULL, 0)); 4088 case FUTEX_FD: 4089 return get_errno(sys_futex(g2h(uaddr), op, val, NULL, NULL, 0)); 4090 case FUTEX_REQUEUE: 4091 case FUTEX_CMP_REQUEUE: 4092 case FUTEX_WAKE_OP: 4093 /* For FUTEX_REQUEUE, FUTEX_CMP_REQUEUE, and FUTEX_WAKE_OP, the 4094 TIMEOUT parameter is interpreted as a uint32_t by the kernel. 4095 But the prototype takes a `struct timespec *'; insert casts 4096 to satisfy the compiler. We do not need to tswap TIMEOUT 4097 since it's not compared to guest memory. */ 4098 pts = (struct timespec *)(uintptr_t) timeout; 4099 return get_errno(sys_futex(g2h(uaddr), op, val, pts, 4100 g2h(uaddr2), 4101 (base_op == FUTEX_CMP_REQUEUE 4102 ? tswap32(val3) 4103 : val3))); 4104 default: 4105 return -TARGET_ENOSYS; 4106 } 4107 } 4108 #endif 4109 4110 /* Map host to target signal numbers for the wait family of syscalls. 4111 Assume all other status bits are the same. */ 4112 static int host_to_target_waitstatus(int status) 4113 { 4114 if (WIFSIGNALED(status)) { 4115 return host_to_target_signal(WTERMSIG(status)) | (status & ~0x7f); 4116 } 4117 if (WIFSTOPPED(status)) { 4118 return (host_to_target_signal(WSTOPSIG(status)) << 8) 4119 | (status & 0xff); 4120 } 4121 return status; 4122 } 4123 4124 int get_osversion(void) 4125 { 4126 static int osversion; 4127 struct new_utsname buf; 4128 const char *s; 4129 int i, n, tmp; 4130 if (osversion) 4131 return osversion; 4132 if (qemu_uname_release && *qemu_uname_release) { 4133 s = qemu_uname_release; 4134 } else { 4135 if (sys_uname(&buf)) 4136 return 0; 4137 s = buf.release; 4138 } 4139 tmp = 0; 4140 for (i = 0; i < 3; i++) { 4141 n = 0; 4142 while (*s >= '0' && *s <= '9') { 4143 n *= 10; 4144 n += *s - '0'; 4145 s++; 4146 } 4147 tmp = (tmp << 8) + n; 4148 if (*s == '.') 4149 s++; 4150 } 4151 osversion = tmp; 4152 return osversion; 4153 } 4154 4155 /* do_syscall() should always have a single exit point at the end so 4156 that actions, such as logging of syscall results, can be performed. 4157 All errnos that do_syscall() returns must be -TARGET_<errcode>. */ 4158 abi_long do_syscall(void *cpu_env, int num, abi_long arg1, 4159 abi_long arg2, abi_long arg3, abi_long arg4, 4160 abi_long arg5, abi_long arg6) 4161 { 4162 abi_long ret; 4163 struct stat st; 4164 struct statfs stfs; 4165 void *p; 4166 4167 #ifdef DEBUG 4168 gemu_log("syscall %d", num); 4169 #endif 4170 if(do_strace) 4171 print_syscall(num, arg1, arg2, arg3, arg4, arg5, arg6); 4172 4173 switch(num) { 4174 case TARGET_NR_exit: 4175 #ifdef CONFIG_USE_NPTL 4176 /* In old applications this may be used to implement _exit(2). 4177 However in threaded applictions it is used for thread termination, 4178 and _exit_group is used for application termination. 4179 Do thread termination if we have more then one thread. */ 4180 /* FIXME: This probably breaks if a signal arrives. We should probably 4181 be disabling signals. */ 4182 if (first_cpu->next_cpu) { 4183 TaskState *ts; 4184 CPUState **lastp; 4185 CPUState *p; 4186 4187 cpu_list_lock(); 4188 lastp = &first_cpu; 4189 p = first_cpu; 4190 while (p && p != (CPUState *)cpu_env) { 4191 lastp = &p->next_cpu; 4192 p = p->next_cpu; 4193 } 4194 /* If we didn't find the CPU for this thread then something is 4195 horribly wrong. */ 4196 if (!p) 4197 abort(); 4198 /* Remove the CPU from the list. */ 4199 *lastp = p->next_cpu; 4200 cpu_list_unlock(); 4201 ts = ((CPUState *)cpu_env)->opaque; 4202 if (ts->child_tidptr) { 4203 put_user_u32(0, ts->child_tidptr); 4204 sys_futex(g2h(ts->child_tidptr), FUTEX_WAKE, INT_MAX, 4205 NULL, NULL, 0); 4206 } 4207 /* TODO: Free CPU state. */ 4208 pthread_exit(NULL); 4209 } 4210 #endif 4211 #ifdef TARGET_GPROF 4212 _mcleanup(); 4213 #endif 4214 gdb_exit(cpu_env, arg1); 4215 _exit(arg1); 4216 ret = 0; /* avoid warning */ 4217 break; 4218 case TARGET_NR_read: 4219 if (arg3 == 0) 4220 ret = 0; 4221 else { 4222 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0))) 4223 goto efault; 4224 ret = get_errno(read(arg1, p, arg3)); 4225 unlock_user(p, arg2, ret); 4226 } 4227 break; 4228 case TARGET_NR_write: 4229 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1))) 4230 goto efault; 4231 ret = get_errno(write(arg1, p, arg3)); 4232 unlock_user(p, arg2, 0); 4233 break; 4234 case TARGET_NR_open: 4235 if (!(p = lock_user_string(arg1))) 4236 goto efault; 4237 ret = get_errno(open(path(p), 4238 target_to_host_bitmask(arg2, fcntl_flags_tbl), 4239 arg3)); 4240 unlock_user(p, arg1, 0); 4241 break; 4242 #if defined(TARGET_NR_openat) && defined(__NR_openat) 4243 case TARGET_NR_openat: 4244 if (!(p = lock_user_string(arg2))) 4245 goto efault; 4246 ret = get_errno(sys_openat(arg1, 4247 path(p), 4248 target_to_host_bitmask(arg3, fcntl_flags_tbl), 4249 arg4)); 4250 unlock_user(p, arg2, 0); 4251 break; 4252 #endif 4253 case TARGET_NR_close: 4254 ret = get_errno(close(arg1)); 4255 break; 4256 case TARGET_NR_brk: 4257 ret = do_brk(arg1); 4258 break; 4259 case TARGET_NR_fork: 4260 ret = get_errno(do_fork(cpu_env, SIGCHLD, 0, 0, 0, 0)); 4261 break; 4262 #ifdef TARGET_NR_waitpid 4263 case TARGET_NR_waitpid: 4264 { 4265 int status; 4266 ret = get_errno(waitpid(arg1, &status, arg3)); 4267 if (!is_error(ret) && arg2 4268 && put_user_s32(host_to_target_waitstatus(status), arg2)) 4269 goto efault; 4270 } 4271 break; 4272 #endif 4273 #ifdef TARGET_NR_waitid 4274 case TARGET_NR_waitid: 4275 { 4276 siginfo_t info; 4277 info.si_pid = 0; 4278 ret = get_errno(waitid(arg1, arg2, &info, arg4)); 4279 if (!is_error(ret) && arg3 && info.si_pid != 0) { 4280 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_siginfo_t), 0))) 4281 goto efault; 4282 host_to_target_siginfo(p, &info); 4283 unlock_user(p, arg3, sizeof(target_siginfo_t)); 4284 } 4285 } 4286 break; 4287 #endif 4288 #ifdef TARGET_NR_creat /* not on alpha */ 4289 case TARGET_NR_creat: 4290 if (!(p = lock_user_string(arg1))) 4291 goto efault; 4292 ret = get_errno(creat(p, arg2)); 4293 unlock_user(p, arg1, 0); 4294 break; 4295 #endif 4296 case TARGET_NR_link: 4297 { 4298 void * p2; 4299 p = lock_user_string(arg1); 4300 p2 = lock_user_string(arg2); 4301 if (!p || !p2) 4302 ret = -TARGET_EFAULT; 4303 else 4304 ret = get_errno(link(p, p2)); 4305 unlock_user(p2, arg2, 0); 4306 unlock_user(p, arg1, 0); 4307 } 4308 break; 4309 #if defined(TARGET_NR_linkat) && defined(__NR_linkat) 4310 case TARGET_NR_linkat: 4311 { 4312 void * p2 = NULL; 4313 if (!arg2 || !arg4) 4314 goto efault; 4315 p = lock_user_string(arg2); 4316 p2 = lock_user_string(arg4); 4317 if (!p || !p2) 4318 ret = -TARGET_EFAULT; 4319 else 4320 ret = get_errno(sys_linkat(arg1, p, arg3, p2, arg5)); 4321 unlock_user(p, arg2, 0); 4322 unlock_user(p2, arg4, 0); 4323 } 4324 break; 4325 #endif 4326 case TARGET_NR_unlink: 4327 if (!(p = lock_user_string(arg1))) 4328 goto efault; 4329 ret = get_errno(unlink(p)); 4330 unlock_user(p, arg1, 0); 4331 break; 4332 #if defined(TARGET_NR_unlinkat) && defined(__NR_unlinkat) 4333 case TARGET_NR_unlinkat: 4334 if (!(p = lock_user_string(arg2))) 4335 goto efault; 4336 ret = get_errno(sys_unlinkat(arg1, p, arg3)); 4337 unlock_user(p, arg2, 0); 4338 break; 4339 #endif 4340 case TARGET_NR_execve: 4341 { 4342 char **argp, **envp; 4343 int argc, envc; 4344 abi_ulong gp; 4345 abi_ulong guest_argp; 4346 abi_ulong guest_envp; 4347 abi_ulong addr; 4348 char **q; 4349 4350 argc = 0; 4351 guest_argp = arg2; 4352 for (gp = guest_argp; gp; gp += sizeof(abi_ulong)) { 4353 if (get_user_ual(addr, gp)) 4354 goto efault; 4355 if (!addr) 4356 break; 4357 argc++; 4358 } 4359 envc = 0; 4360 guest_envp = arg3; 4361 for (gp = guest_envp; gp; gp += sizeof(abi_ulong)) { 4362 if (get_user_ual(addr, gp)) 4363 goto efault; 4364 if (!addr) 4365 break; 4366 envc++; 4367 } 4368 4369 argp = alloca((argc + 1) * sizeof(void *)); 4370 envp = alloca((envc + 1) * sizeof(void *)); 4371 4372 for (gp = guest_argp, q = argp; gp; 4373 gp += sizeof(abi_ulong), q++) { 4374 if (get_user_ual(addr, gp)) 4375 goto execve_efault; 4376 if (!addr) 4377 break; 4378 if (!(*q = lock_user_string(addr))) 4379 goto execve_efault; 4380 } 4381 *q = NULL; 4382 4383 for (gp = guest_envp, q = envp; gp; 4384 gp += sizeof(abi_ulong), q++) { 4385 if (get_user_ual(addr, gp)) 4386 goto execve_efault; 4387 if (!addr) 4388 break; 4389 if (!(*q = lock_user_string(addr))) 4390 goto execve_efault; 4391 } 4392 *q = NULL; 4393 4394 if (!(p = lock_user_string(arg1))) 4395 goto execve_efault; 4396 ret = get_errno(execve(p, argp, envp)); 4397 unlock_user(p, arg1, 0); 4398 4399 goto execve_end; 4400 4401 execve_efault: 4402 ret = -TARGET_EFAULT; 4403 4404 execve_end: 4405 for (gp = guest_argp, q = argp; *q; 4406 gp += sizeof(abi_ulong), q++) { 4407 if (get_user_ual(addr, gp) 4408 || !addr) 4409 break; 4410 unlock_user(*q, addr, 0); 4411 } 4412 for (gp = guest_envp, q = envp; *q; 4413 gp += sizeof(abi_ulong), q++) { 4414 if (get_user_ual(addr, gp) 4415 || !addr) 4416 break; 4417 unlock_user(*q, addr, 0); 4418 } 4419 } 4420 break; 4421 case TARGET_NR_chdir: 4422 if (!(p = lock_user_string(arg1))) 4423 goto efault; 4424 ret = get_errno(chdir(p)); 4425 unlock_user(p, arg1, 0); 4426 break; 4427 #ifdef TARGET_NR_time 4428 case TARGET_NR_time: 4429 { 4430 time_t host_time; 4431 ret = get_errno(time(&host_time)); 4432 if (!is_error(ret) 4433 && arg1 4434 && put_user_sal(host_time, arg1)) 4435 goto efault; 4436 } 4437 break; 4438 #endif 4439 case TARGET_NR_mknod: 4440 if (!(p = lock_user_string(arg1))) 4441 goto efault; 4442 ret = get_errno(mknod(p, arg2, arg3)); 4443 unlock_user(p, arg1, 0); 4444 break; 4445 #if defined(TARGET_NR_mknodat) && defined(__NR_mknodat) 4446 case TARGET_NR_mknodat: 4447 if (!(p = lock_user_string(arg2))) 4448 goto efault; 4449 ret = get_errno(sys_mknodat(arg1, p, arg3, arg4)); 4450 unlock_user(p, arg2, 0); 4451 break; 4452 #endif 4453 case TARGET_NR_chmod: 4454 if (!(p = lock_user_string(arg1))) 4455 goto efault; 4456 ret = get_errno(chmod(p, arg2)); 4457 unlock_user(p, arg1, 0); 4458 break; 4459 #ifdef TARGET_NR_break 4460 case TARGET_NR_break: 4461 goto unimplemented; 4462 #endif 4463 #ifdef TARGET_NR_oldstat 4464 case TARGET_NR_oldstat: 4465 goto unimplemented; 4466 #endif 4467 case TARGET_NR_lseek: 4468 ret = get_errno(lseek(arg1, arg2, arg3)); 4469 break; 4470 #ifdef TARGET_NR_getxpid 4471 case TARGET_NR_getxpid: 4472 #else 4473 case TARGET_NR_getpid: 4474 #endif 4475 ret = get_errno(getpid()); 4476 break; 4477 case TARGET_NR_mount: 4478 { 4479 /* need to look at the data field */ 4480 void *p2, *p3; 4481 p = lock_user_string(arg1); 4482 p2 = lock_user_string(arg2); 4483 p3 = lock_user_string(arg3); 4484 if (!p || !p2 || !p3) 4485 ret = -TARGET_EFAULT; 4486 else { 4487 /* FIXME - arg5 should be locked, but it isn't clear how to 4488 * do that since it's not guaranteed to be a NULL-terminated 4489 * string. 4490 */ 4491 if ( ! arg5 ) 4492 ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, NULL)); 4493 else 4494 ret = get_errno(mount(p, p2, p3, (unsigned long)arg4, g2h(arg5))); 4495 } 4496 unlock_user(p, arg1, 0); 4497 unlock_user(p2, arg2, 0); 4498 unlock_user(p3, arg3, 0); 4499 break; 4500 } 4501 #ifdef TARGET_NR_umount 4502 case TARGET_NR_umount: 4503 if (!(p = lock_user_string(arg1))) 4504 goto efault; 4505 ret = get_errno(umount(p)); 4506 unlock_user(p, arg1, 0); 4507 break; 4508 #endif 4509 #ifdef TARGET_NR_stime /* not on alpha */ 4510 case TARGET_NR_stime: 4511 { 4512 time_t host_time; 4513 if (get_user_sal(host_time, arg1)) 4514 goto efault; 4515 ret = get_errno(stime(&host_time)); 4516 } 4517 break; 4518 #endif 4519 case TARGET_NR_ptrace: 4520 goto unimplemented; 4521 #ifdef TARGET_NR_alarm /* not on alpha */ 4522 case TARGET_NR_alarm: 4523 ret = alarm(arg1); 4524 break; 4525 #endif 4526 #ifdef TARGET_NR_oldfstat 4527 case TARGET_NR_oldfstat: 4528 goto unimplemented; 4529 #endif 4530 #ifdef TARGET_NR_pause /* not on alpha */ 4531 case TARGET_NR_pause: 4532 ret = get_errno(pause()); 4533 break; 4534 #endif 4535 #ifdef TARGET_NR_utime 4536 case TARGET_NR_utime: 4537 { 4538 struct utimbuf tbuf, *host_tbuf; 4539 struct target_utimbuf *target_tbuf; 4540 if (arg2) { 4541 if (!lock_user_struct(VERIFY_READ, target_tbuf, arg2, 1)) 4542 goto efault; 4543 tbuf.actime = tswapl(target_tbuf->actime); 4544 tbuf.modtime = tswapl(target_tbuf->modtime); 4545 unlock_user_struct(target_tbuf, arg2, 0); 4546 host_tbuf = &tbuf; 4547 } else { 4548 host_tbuf = NULL; 4549 } 4550 if (!(p = lock_user_string(arg1))) 4551 goto efault; 4552 ret = get_errno(utime(p, host_tbuf)); 4553 unlock_user(p, arg1, 0); 4554 } 4555 break; 4556 #endif 4557 case TARGET_NR_utimes: 4558 { 4559 struct timeval *tvp, tv[2]; 4560 if (arg2) { 4561 if (copy_from_user_timeval(&tv[0], arg2) 4562 || copy_from_user_timeval(&tv[1], 4563 arg2 + sizeof(struct target_timeval))) 4564 goto efault; 4565 tvp = tv; 4566 } else { 4567 tvp = NULL; 4568 } 4569 if (!(p = lock_user_string(arg1))) 4570 goto efault; 4571 ret = get_errno(utimes(p, tvp)); 4572 unlock_user(p, arg1, 0); 4573 } 4574 break; 4575 #if defined(TARGET_NR_futimesat) && defined(__NR_futimesat) 4576 case TARGET_NR_futimesat: 4577 { 4578 struct timeval *tvp, tv[2]; 4579 if (arg3) { 4580 if (copy_from_user_timeval(&tv[0], arg3) 4581 || copy_from_user_timeval(&tv[1], 4582 arg3 + sizeof(struct target_timeval))) 4583 goto efault; 4584 tvp = tv; 4585 } else { 4586 tvp = NULL; 4587 } 4588 if (!(p = lock_user_string(arg2))) 4589 goto efault; 4590 ret = get_errno(sys_futimesat(arg1, path(p), tvp)); 4591 unlock_user(p, arg2, 0); 4592 } 4593 break; 4594 #endif 4595 #ifdef TARGET_NR_stty 4596 case TARGET_NR_stty: 4597 goto unimplemented; 4598 #endif 4599 #ifdef TARGET_NR_gtty 4600 case TARGET_NR_gtty: 4601 goto unimplemented; 4602 #endif 4603 case TARGET_NR_access: 4604 if (!(p = lock_user_string(arg1))) 4605 goto efault; 4606 ret = get_errno(access(path(p), arg2)); 4607 unlock_user(p, arg1, 0); 4608 break; 4609 #if defined(TARGET_NR_faccessat) && defined(__NR_faccessat) 4610 case TARGET_NR_faccessat: 4611 if (!(p = lock_user_string(arg2))) 4612 goto efault; 4613 ret = get_errno(sys_faccessat(arg1, p, arg3)); 4614 unlock_user(p, arg2, 0); 4615 break; 4616 #endif 4617 #ifdef TARGET_NR_nice /* not on alpha */ 4618 case TARGET_NR_nice: 4619 ret = get_errno(nice(arg1)); 4620 break; 4621 #endif 4622 #ifdef TARGET_NR_ftime 4623 case TARGET_NR_ftime: 4624 goto unimplemented; 4625 #endif 4626 case TARGET_NR_sync: 4627 sync(); 4628 ret = 0; 4629 break; 4630 case TARGET_NR_kill: 4631 ret = get_errno(kill(arg1, target_to_host_signal(arg2))); 4632 break; 4633 case TARGET_NR_rename: 4634 { 4635 void *p2; 4636 p = lock_user_string(arg1); 4637 p2 = lock_user_string(arg2); 4638 if (!p || !p2) 4639 ret = -TARGET_EFAULT; 4640 else 4641 ret = get_errno(rename(p, p2)); 4642 unlock_user(p2, arg2, 0); 4643 unlock_user(p, arg1, 0); 4644 } 4645 break; 4646 #if defined(TARGET_NR_renameat) && defined(__NR_renameat) 4647 case TARGET_NR_renameat: 4648 { 4649 void *p2; 4650 p = lock_user_string(arg2); 4651 p2 = lock_user_string(arg4); 4652 if (!p || !p2) 4653 ret = -TARGET_EFAULT; 4654 else 4655 ret = get_errno(sys_renameat(arg1, p, arg3, p2)); 4656 unlock_user(p2, arg4, 0); 4657 unlock_user(p, arg2, 0); 4658 } 4659 break; 4660 #endif 4661 case TARGET_NR_mkdir: 4662 if (!(p = lock_user_string(arg1))) 4663 goto efault; 4664 ret = get_errno(mkdir(p, arg2)); 4665 unlock_user(p, arg1, 0); 4666 break; 4667 #if defined(TARGET_NR_mkdirat) && defined(__NR_mkdirat) 4668 case TARGET_NR_mkdirat: 4669 if (!(p = lock_user_string(arg2))) 4670 goto efault; 4671 ret = get_errno(sys_mkdirat(arg1, p, arg3)); 4672 unlock_user(p, arg2, 0); 4673 break; 4674 #endif 4675 case TARGET_NR_rmdir: 4676 if (!(p = lock_user_string(arg1))) 4677 goto efault; 4678 ret = get_errno(rmdir(p)); 4679 unlock_user(p, arg1, 0); 4680 break; 4681 case TARGET_NR_dup: 4682 ret = get_errno(dup(arg1)); 4683 break; 4684 case TARGET_NR_pipe: 4685 ret = do_pipe(cpu_env, arg1, 0); 4686 break; 4687 #ifdef TARGET_NR_pipe2 4688 case TARGET_NR_pipe2: 4689 ret = do_pipe(cpu_env, arg1, arg2); 4690 break; 4691 #endif 4692 case TARGET_NR_times: 4693 { 4694 struct target_tms *tmsp; 4695 struct tms tms; 4696 ret = get_errno(times(&tms)); 4697 if (arg1) { 4698 tmsp = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_tms), 0); 4699 if (!tmsp) 4700 goto efault; 4701 tmsp->tms_utime = tswapl(host_to_target_clock_t(tms.tms_utime)); 4702 tmsp->tms_stime = tswapl(host_to_target_clock_t(tms.tms_stime)); 4703 tmsp->tms_cutime = tswapl(host_to_target_clock_t(tms.tms_cutime)); 4704 tmsp->tms_cstime = tswapl(host_to_target_clock_t(tms.tms_cstime)); 4705 } 4706 if (!is_error(ret)) 4707 ret = host_to_target_clock_t(ret); 4708 } 4709 break; 4710 #ifdef TARGET_NR_prof 4711 case TARGET_NR_prof: 4712 goto unimplemented; 4713 #endif 4714 #ifdef TARGET_NR_signal 4715 case TARGET_NR_signal: 4716 goto unimplemented; 4717 #endif 4718 case TARGET_NR_acct: 4719 if (arg1 == 0) { 4720 ret = get_errno(acct(NULL)); 4721 } else { 4722 if (!(p = lock_user_string(arg1))) 4723 goto efault; 4724 ret = get_errno(acct(path(p))); 4725 unlock_user(p, arg1, 0); 4726 } 4727 break; 4728 #ifdef TARGET_NR_umount2 /* not on alpha */ 4729 case TARGET_NR_umount2: 4730 if (!(p = lock_user_string(arg1))) 4731 goto efault; 4732 ret = get_errno(umount2(p, arg2)); 4733 unlock_user(p, arg1, 0); 4734 break; 4735 #endif 4736 #ifdef TARGET_NR_lock 4737 case TARGET_NR_lock: 4738 goto unimplemented; 4739 #endif 4740 case TARGET_NR_ioctl: 4741 ret = do_ioctl(arg1, arg2, arg3); 4742 break; 4743 case TARGET_NR_fcntl: 4744 ret = do_fcntl(arg1, arg2, arg3); 4745 break; 4746 #ifdef TARGET_NR_mpx 4747 case TARGET_NR_mpx: 4748 goto unimplemented; 4749 #endif 4750 case TARGET_NR_setpgid: 4751 ret = get_errno(setpgid(arg1, arg2)); 4752 break; 4753 #ifdef TARGET_NR_ulimit 4754 case TARGET_NR_ulimit: 4755 goto unimplemented; 4756 #endif 4757 #ifdef TARGET_NR_oldolduname 4758 case TARGET_NR_oldolduname: 4759 goto unimplemented; 4760 #endif 4761 case TARGET_NR_umask: 4762 ret = get_errno(umask(arg1)); 4763 break; 4764 case TARGET_NR_chroot: 4765 if (!(p = lock_user_string(arg1))) 4766 goto efault; 4767 ret = get_errno(chroot(p)); 4768 unlock_user(p, arg1, 0); 4769 break; 4770 case TARGET_NR_ustat: 4771 goto unimplemented; 4772 case TARGET_NR_dup2: 4773 ret = get_errno(dup2(arg1, arg2)); 4774 break; 4775 #if defined(CONFIG_DUP3) && defined(TARGET_NR_dup3) 4776 case TARGET_NR_dup3: 4777 ret = get_errno(dup3(arg1, arg2, arg3)); 4778 break; 4779 #endif 4780 #ifdef TARGET_NR_getppid /* not on alpha */ 4781 case TARGET_NR_getppid: 4782 ret = get_errno(getppid()); 4783 break; 4784 #endif 4785 case TARGET_NR_getpgrp: 4786 ret = get_errno(getpgrp()); 4787 break; 4788 case TARGET_NR_setsid: 4789 ret = get_errno(setsid()); 4790 break; 4791 #ifdef TARGET_NR_sigaction 4792 case TARGET_NR_sigaction: 4793 { 4794 #if defined(TARGET_ALPHA) 4795 struct target_sigaction act, oact, *pact = 0; 4796 struct target_old_sigaction *old_act; 4797 if (arg2) { 4798 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1)) 4799 goto efault; 4800 act._sa_handler = old_act->_sa_handler; 4801 target_siginitset(&act.sa_mask, old_act->sa_mask); 4802 act.sa_flags = old_act->sa_flags; 4803 act.sa_restorer = 0; 4804 unlock_user_struct(old_act, arg2, 0); 4805 pact = &act; 4806 } 4807 ret = get_errno(do_sigaction(arg1, pact, &oact)); 4808 if (!is_error(ret) && arg3) { 4809 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0)) 4810 goto efault; 4811 old_act->_sa_handler = oact._sa_handler; 4812 old_act->sa_mask = oact.sa_mask.sig[0]; 4813 old_act->sa_flags = oact.sa_flags; 4814 unlock_user_struct(old_act, arg3, 1); 4815 } 4816 #elif defined(TARGET_MIPS) 4817 struct target_sigaction act, oact, *pact, *old_act; 4818 4819 if (arg2) { 4820 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1)) 4821 goto efault; 4822 act._sa_handler = old_act->_sa_handler; 4823 target_siginitset(&act.sa_mask, old_act->sa_mask.sig[0]); 4824 act.sa_flags = old_act->sa_flags; 4825 unlock_user_struct(old_act, arg2, 0); 4826 pact = &act; 4827 } else { 4828 pact = NULL; 4829 } 4830 4831 ret = get_errno(do_sigaction(arg1, pact, &oact)); 4832 4833 if (!is_error(ret) && arg3) { 4834 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0)) 4835 goto efault; 4836 old_act->_sa_handler = oact._sa_handler; 4837 old_act->sa_flags = oact.sa_flags; 4838 old_act->sa_mask.sig[0] = oact.sa_mask.sig[0]; 4839 old_act->sa_mask.sig[1] = 0; 4840 old_act->sa_mask.sig[2] = 0; 4841 old_act->sa_mask.sig[3] = 0; 4842 unlock_user_struct(old_act, arg3, 1); 4843 } 4844 #else 4845 struct target_old_sigaction *old_act; 4846 struct target_sigaction act, oact, *pact; 4847 if (arg2) { 4848 if (!lock_user_struct(VERIFY_READ, old_act, arg2, 1)) 4849 goto efault; 4850 act._sa_handler = old_act->_sa_handler; 4851 target_siginitset(&act.sa_mask, old_act->sa_mask); 4852 act.sa_flags = old_act->sa_flags; 4853 act.sa_restorer = old_act->sa_restorer; 4854 unlock_user_struct(old_act, arg2, 0); 4855 pact = &act; 4856 } else { 4857 pact = NULL; 4858 } 4859 ret = get_errno(do_sigaction(arg1, pact, &oact)); 4860 if (!is_error(ret) && arg3) { 4861 if (!lock_user_struct(VERIFY_WRITE, old_act, arg3, 0)) 4862 goto efault; 4863 old_act->_sa_handler = oact._sa_handler; 4864 old_act->sa_mask = oact.sa_mask.sig[0]; 4865 old_act->sa_flags = oact.sa_flags; 4866 old_act->sa_restorer = oact.sa_restorer; 4867 unlock_user_struct(old_act, arg3, 1); 4868 } 4869 #endif 4870 } 4871 break; 4872 #endif 4873 case TARGET_NR_rt_sigaction: 4874 { 4875 #if defined(TARGET_ALPHA) 4876 struct target_sigaction act, oact, *pact = 0; 4877 struct target_rt_sigaction *rt_act; 4878 /* ??? arg4 == sizeof(sigset_t). */ 4879 if (arg2) { 4880 if (!lock_user_struct(VERIFY_READ, rt_act, arg2, 1)) 4881 goto efault; 4882 act._sa_handler = rt_act->_sa_handler; 4883 act.sa_mask = rt_act->sa_mask; 4884 act.sa_flags = rt_act->sa_flags; 4885 act.sa_restorer = arg5; 4886 unlock_user_struct(rt_act, arg2, 0); 4887 pact = &act; 4888 } 4889 ret = get_errno(do_sigaction(arg1, pact, &oact)); 4890 if (!is_error(ret) && arg3) { 4891 if (!lock_user_struct(VERIFY_WRITE, rt_act, arg3, 0)) 4892 goto efault; 4893 rt_act->_sa_handler = oact._sa_handler; 4894 rt_act->sa_mask = oact.sa_mask; 4895 rt_act->sa_flags = oact.sa_flags; 4896 unlock_user_struct(rt_act, arg3, 1); 4897 } 4898 #else 4899 struct target_sigaction *act; 4900 struct target_sigaction *oact; 4901 4902 if (arg2) { 4903 if (!lock_user_struct(VERIFY_READ, act, arg2, 1)) 4904 goto efault; 4905 } else 4906 act = NULL; 4907 if (arg3) { 4908 if (!lock_user_struct(VERIFY_WRITE, oact, arg3, 0)) { 4909 ret = -TARGET_EFAULT; 4910 goto rt_sigaction_fail; 4911 } 4912 } else 4913 oact = NULL; 4914 ret = get_errno(do_sigaction(arg1, act, oact)); 4915 rt_sigaction_fail: 4916 if (act) 4917 unlock_user_struct(act, arg2, 0); 4918 if (oact) 4919 unlock_user_struct(oact, arg3, 1); 4920 #endif 4921 } 4922 break; 4923 #ifdef TARGET_NR_sgetmask /* not on alpha */ 4924 case TARGET_NR_sgetmask: 4925 { 4926 sigset_t cur_set; 4927 abi_ulong target_set; 4928 sigprocmask(0, NULL, &cur_set); 4929 host_to_target_old_sigset(&target_set, &cur_set); 4930 ret = target_set; 4931 } 4932 break; 4933 #endif 4934 #ifdef TARGET_NR_ssetmask /* not on alpha */ 4935 case TARGET_NR_ssetmask: 4936 { 4937 sigset_t set, oset, cur_set; 4938 abi_ulong target_set = arg1; 4939 sigprocmask(0, NULL, &cur_set); 4940 target_to_host_old_sigset(&set, &target_set); 4941 sigorset(&set, &set, &cur_set); 4942 sigprocmask(SIG_SETMASK, &set, &oset); 4943 host_to_target_old_sigset(&target_set, &oset); 4944 ret = target_set; 4945 } 4946 break; 4947 #endif 4948 #ifdef TARGET_NR_sigprocmask 4949 case TARGET_NR_sigprocmask: 4950 { 4951 int how = arg1; 4952 sigset_t set, oldset, *set_ptr; 4953 4954 if (arg2) { 4955 switch(how) { 4956 case TARGET_SIG_BLOCK: 4957 how = SIG_BLOCK; 4958 break; 4959 case TARGET_SIG_UNBLOCK: 4960 how = SIG_UNBLOCK; 4961 break; 4962 case TARGET_SIG_SETMASK: 4963 how = SIG_SETMASK; 4964 break; 4965 default: 4966 ret = -TARGET_EINVAL; 4967 goto fail; 4968 } 4969 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1))) 4970 goto efault; 4971 target_to_host_old_sigset(&set, p); 4972 unlock_user(p, arg2, 0); 4973 set_ptr = &set; 4974 } else { 4975 how = 0; 4976 set_ptr = NULL; 4977 } 4978 ret = get_errno(sigprocmask(arg1, set_ptr, &oldset)); 4979 if (!is_error(ret) && arg3) { 4980 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0))) 4981 goto efault; 4982 host_to_target_old_sigset(p, &oldset); 4983 unlock_user(p, arg3, sizeof(target_sigset_t)); 4984 } 4985 } 4986 break; 4987 #endif 4988 case TARGET_NR_rt_sigprocmask: 4989 { 4990 int how = arg1; 4991 sigset_t set, oldset, *set_ptr; 4992 4993 if (arg2) { 4994 switch(how) { 4995 case TARGET_SIG_BLOCK: 4996 how = SIG_BLOCK; 4997 break; 4998 case TARGET_SIG_UNBLOCK: 4999 how = SIG_UNBLOCK; 5000 break; 5001 case TARGET_SIG_SETMASK: 5002 how = SIG_SETMASK; 5003 break; 5004 default: 5005 ret = -TARGET_EINVAL; 5006 goto fail; 5007 } 5008 if (!(p = lock_user(VERIFY_READ, arg2, sizeof(target_sigset_t), 1))) 5009 goto efault; 5010 target_to_host_sigset(&set, p); 5011 unlock_user(p, arg2, 0); 5012 set_ptr = &set; 5013 } else { 5014 how = 0; 5015 set_ptr = NULL; 5016 } 5017 ret = get_errno(sigprocmask(how, set_ptr, &oldset)); 5018 if (!is_error(ret) && arg3) { 5019 if (!(p = lock_user(VERIFY_WRITE, arg3, sizeof(target_sigset_t), 0))) 5020 goto efault; 5021 host_to_target_sigset(p, &oldset); 5022 unlock_user(p, arg3, sizeof(target_sigset_t)); 5023 } 5024 } 5025 break; 5026 #ifdef TARGET_NR_sigpending 5027 case TARGET_NR_sigpending: 5028 { 5029 sigset_t set; 5030 ret = get_errno(sigpending(&set)); 5031 if (!is_error(ret)) { 5032 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0))) 5033 goto efault; 5034 host_to_target_old_sigset(p, &set); 5035 unlock_user(p, arg1, sizeof(target_sigset_t)); 5036 } 5037 } 5038 break; 5039 #endif 5040 case TARGET_NR_rt_sigpending: 5041 { 5042 sigset_t set; 5043 ret = get_errno(sigpending(&set)); 5044 if (!is_error(ret)) { 5045 if (!(p = lock_user(VERIFY_WRITE, arg1, sizeof(target_sigset_t), 0))) 5046 goto efault; 5047 host_to_target_sigset(p, &set); 5048 unlock_user(p, arg1, sizeof(target_sigset_t)); 5049 } 5050 } 5051 break; 5052 #ifdef TARGET_NR_sigsuspend 5053 case TARGET_NR_sigsuspend: 5054 { 5055 sigset_t set; 5056 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1))) 5057 goto efault; 5058 target_to_host_old_sigset(&set, p); 5059 unlock_user(p, arg1, 0); 5060 ret = get_errno(sigsuspend(&set)); 5061 } 5062 break; 5063 #endif 5064 case TARGET_NR_rt_sigsuspend: 5065 { 5066 sigset_t set; 5067 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1))) 5068 goto efault; 5069 target_to_host_sigset(&set, p); 5070 unlock_user(p, arg1, 0); 5071 ret = get_errno(sigsuspend(&set)); 5072 } 5073 break; 5074 case TARGET_NR_rt_sigtimedwait: 5075 { 5076 sigset_t set; 5077 struct timespec uts, *puts; 5078 siginfo_t uinfo; 5079 5080 if (!(p = lock_user(VERIFY_READ, arg1, sizeof(target_sigset_t), 1))) 5081 goto efault; 5082 target_to_host_sigset(&set, p); 5083 unlock_user(p, arg1, 0); 5084 if (arg3) { 5085 puts = &uts; 5086 target_to_host_timespec(puts, arg3); 5087 } else { 5088 puts = NULL; 5089 } 5090 ret = get_errno(sigtimedwait(&set, &uinfo, puts)); 5091 if (!is_error(ret) && arg2) { 5092 if (!(p = lock_user(VERIFY_WRITE, arg2, sizeof(target_siginfo_t), 0))) 5093 goto efault; 5094 host_to_target_siginfo(p, &uinfo); 5095 unlock_user(p, arg2, sizeof(target_siginfo_t)); 5096 } 5097 } 5098 break; 5099 case TARGET_NR_rt_sigqueueinfo: 5100 { 5101 siginfo_t uinfo; 5102 if (!(p = lock_user(VERIFY_READ, arg3, sizeof(target_sigset_t), 1))) 5103 goto efault; 5104 target_to_host_siginfo(&uinfo, p); 5105 unlock_user(p, arg1, 0); 5106 ret = get_errno(sys_rt_sigqueueinfo(arg1, arg2, &uinfo)); 5107 } 5108 break; 5109 #ifdef TARGET_NR_sigreturn 5110 case TARGET_NR_sigreturn: 5111 /* NOTE: ret is eax, so not transcoding must be done */ 5112 ret = do_sigreturn(cpu_env); 5113 break; 5114 #endif 5115 case TARGET_NR_rt_sigreturn: 5116 /* NOTE: ret is eax, so not transcoding must be done */ 5117 ret = do_rt_sigreturn(cpu_env); 5118 break; 5119 case TARGET_NR_sethostname: 5120 if (!(p = lock_user_string(arg1))) 5121 goto efault; 5122 ret = get_errno(sethostname(p, arg2)); 5123 unlock_user(p, arg1, 0); 5124 break; 5125 case TARGET_NR_setrlimit: 5126 { 5127 /* XXX: convert resource ? */ 5128 int resource = arg1; 5129 struct target_rlimit *target_rlim; 5130 struct rlimit rlim; 5131 if (!lock_user_struct(VERIFY_READ, target_rlim, arg2, 1)) 5132 goto efault; 5133 rlim.rlim_cur = tswapl(target_rlim->rlim_cur); 5134 rlim.rlim_max = tswapl(target_rlim->rlim_max); 5135 unlock_user_struct(target_rlim, arg2, 0); 5136 ret = get_errno(setrlimit(resource, &rlim)); 5137 } 5138 break; 5139 case TARGET_NR_getrlimit: 5140 { 5141 /* XXX: convert resource ? */ 5142 int resource = arg1; 5143 struct target_rlimit *target_rlim; 5144 struct rlimit rlim; 5145 5146 ret = get_errno(getrlimit(resource, &rlim)); 5147 if (!is_error(ret)) { 5148 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0)) 5149 goto efault; 5150 target_rlim->rlim_cur = tswapl(rlim.rlim_cur); 5151 target_rlim->rlim_max = tswapl(rlim.rlim_max); 5152 unlock_user_struct(target_rlim, arg2, 1); 5153 } 5154 } 5155 break; 5156 case TARGET_NR_getrusage: 5157 { 5158 struct rusage rusage; 5159 ret = get_errno(getrusage(arg1, &rusage)); 5160 if (!is_error(ret)) { 5161 host_to_target_rusage(arg2, &rusage); 5162 } 5163 } 5164 break; 5165 case TARGET_NR_gettimeofday: 5166 { 5167 struct timeval tv; 5168 ret = get_errno(gettimeofday(&tv, NULL)); 5169 if (!is_error(ret)) { 5170 if (copy_to_user_timeval(arg1, &tv)) 5171 goto efault; 5172 } 5173 } 5174 break; 5175 case TARGET_NR_settimeofday: 5176 { 5177 struct timeval tv; 5178 if (copy_from_user_timeval(&tv, arg1)) 5179 goto efault; 5180 ret = get_errno(settimeofday(&tv, NULL)); 5181 } 5182 break; 5183 #ifdef TARGET_NR_select 5184 case TARGET_NR_select: 5185 { 5186 struct target_sel_arg_struct *sel; 5187 abi_ulong inp, outp, exp, tvp; 5188 long nsel; 5189 5190 if (!lock_user_struct(VERIFY_READ, sel, arg1, 1)) 5191 goto efault; 5192 nsel = tswapl(sel->n); 5193 inp = tswapl(sel->inp); 5194 outp = tswapl(sel->outp); 5195 exp = tswapl(sel->exp); 5196 tvp = tswapl(sel->tvp); 5197 unlock_user_struct(sel, arg1, 0); 5198 ret = do_select(nsel, inp, outp, exp, tvp); 5199 } 5200 break; 5201 #endif 5202 case TARGET_NR_symlink: 5203 { 5204 void *p2; 5205 p = lock_user_string(arg1); 5206 p2 = lock_user_string(arg2); 5207 if (!p || !p2) 5208 ret = -TARGET_EFAULT; 5209 else 5210 ret = get_errno(symlink(p, p2)); 5211 unlock_user(p2, arg2, 0); 5212 unlock_user(p, arg1, 0); 5213 } 5214 break; 5215 #if defined(TARGET_NR_symlinkat) && defined(__NR_symlinkat) 5216 case TARGET_NR_symlinkat: 5217 { 5218 void *p2; 5219 p = lock_user_string(arg1); 5220 p2 = lock_user_string(arg3); 5221 if (!p || !p2) 5222 ret = -TARGET_EFAULT; 5223 else 5224 ret = get_errno(sys_symlinkat(p, arg2, p2)); 5225 unlock_user(p2, arg3, 0); 5226 unlock_user(p, arg1, 0); 5227 } 5228 break; 5229 #endif 5230 #ifdef TARGET_NR_oldlstat 5231 case TARGET_NR_oldlstat: 5232 goto unimplemented; 5233 #endif 5234 case TARGET_NR_readlink: 5235 { 5236 void *p2, *temp; 5237 p = lock_user_string(arg1); 5238 p2 = lock_user(VERIFY_WRITE, arg2, arg3, 0); 5239 if (!p || !p2) 5240 ret = -TARGET_EFAULT; 5241 else { 5242 if (strncmp((const char *)p, "/proc/self/exe", 14) == 0) { 5243 char real[PATH_MAX]; 5244 temp = realpath(exec_path,real); 5245 ret = (temp==NULL) ? get_errno(-1) : strlen(real) ; 5246 snprintf((char *)p2, arg3, "%s", real); 5247 } 5248 else 5249 ret = get_errno(readlink(path(p), p2, arg3)); 5250 } 5251 unlock_user(p2, arg2, ret); 5252 unlock_user(p, arg1, 0); 5253 } 5254 break; 5255 #if defined(TARGET_NR_readlinkat) && defined(__NR_readlinkat) 5256 case TARGET_NR_readlinkat: 5257 { 5258 void *p2; 5259 p = lock_user_string(arg2); 5260 p2 = lock_user(VERIFY_WRITE, arg3, arg4, 0); 5261 if (!p || !p2) 5262 ret = -TARGET_EFAULT; 5263 else 5264 ret = get_errno(sys_readlinkat(arg1, path(p), p2, arg4)); 5265 unlock_user(p2, arg3, ret); 5266 unlock_user(p, arg2, 0); 5267 } 5268 break; 5269 #endif 5270 #ifdef TARGET_NR_uselib 5271 case TARGET_NR_uselib: 5272 goto unimplemented; 5273 #endif 5274 #ifdef TARGET_NR_swapon 5275 case TARGET_NR_swapon: 5276 if (!(p = lock_user_string(arg1))) 5277 goto efault; 5278 ret = get_errno(swapon(p, arg2)); 5279 unlock_user(p, arg1, 0); 5280 break; 5281 #endif 5282 case TARGET_NR_reboot: 5283 goto unimplemented; 5284 #ifdef TARGET_NR_readdir 5285 case TARGET_NR_readdir: 5286 goto unimplemented; 5287 #endif 5288 #ifdef TARGET_NR_mmap 5289 case TARGET_NR_mmap: 5290 #if (defined(TARGET_I386) && defined(TARGET_ABI32)) || defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_CRIS) || defined(TARGET_MICROBLAZE) 5291 { 5292 abi_ulong *v; 5293 abi_ulong v1, v2, v3, v4, v5, v6; 5294 if (!(v = lock_user(VERIFY_READ, arg1, 6 * sizeof(abi_ulong), 1))) 5295 goto efault; 5296 v1 = tswapl(v[0]); 5297 v2 = tswapl(v[1]); 5298 v3 = tswapl(v[2]); 5299 v4 = tswapl(v[3]); 5300 v5 = tswapl(v[4]); 5301 v6 = tswapl(v[5]); 5302 unlock_user(v, arg1, 0); 5303 ret = get_errno(target_mmap(v1, v2, v3, 5304 target_to_host_bitmask(v4, mmap_flags_tbl), 5305 v5, v6)); 5306 } 5307 #else 5308 ret = get_errno(target_mmap(arg1, arg2, arg3, 5309 target_to_host_bitmask(arg4, mmap_flags_tbl), 5310 arg5, 5311 arg6)); 5312 #endif 5313 break; 5314 #endif 5315 #ifdef TARGET_NR_mmap2 5316 case TARGET_NR_mmap2: 5317 #ifndef MMAP_SHIFT 5318 #define MMAP_SHIFT 12 5319 #endif 5320 ret = get_errno(target_mmap(arg1, arg2, arg3, 5321 target_to_host_bitmask(arg4, mmap_flags_tbl), 5322 arg5, 5323 arg6 << MMAP_SHIFT)); 5324 break; 5325 #endif 5326 case TARGET_NR_munmap: 5327 ret = get_errno(target_munmap(arg1, arg2)); 5328 break; 5329 case TARGET_NR_mprotect: 5330 ret = get_errno(target_mprotect(arg1, arg2, arg3)); 5331 break; 5332 #ifdef TARGET_NR_mremap 5333 case TARGET_NR_mremap: 5334 ret = get_errno(target_mremap(arg1, arg2, arg3, arg4, arg5)); 5335 break; 5336 #endif 5337 /* ??? msync/mlock/munlock are broken for softmmu. */ 5338 #ifdef TARGET_NR_msync 5339 case TARGET_NR_msync: 5340 ret = get_errno(msync(g2h(arg1), arg2, arg3)); 5341 break; 5342 #endif 5343 #ifdef TARGET_NR_mlock 5344 case TARGET_NR_mlock: 5345 ret = get_errno(mlock(g2h(arg1), arg2)); 5346 break; 5347 #endif 5348 #ifdef TARGET_NR_munlock 5349 case TARGET_NR_munlock: 5350 ret = get_errno(munlock(g2h(arg1), arg2)); 5351 break; 5352 #endif 5353 #ifdef TARGET_NR_mlockall 5354 case TARGET_NR_mlockall: 5355 ret = get_errno(mlockall(arg1)); 5356 break; 5357 #endif 5358 #ifdef TARGET_NR_munlockall 5359 case TARGET_NR_munlockall: 5360 ret = get_errno(munlockall()); 5361 break; 5362 #endif 5363 case TARGET_NR_truncate: 5364 if (!(p = lock_user_string(arg1))) 5365 goto efault; 5366 ret = get_errno(truncate(p, arg2)); 5367 unlock_user(p, arg1, 0); 5368 break; 5369 case TARGET_NR_ftruncate: 5370 ret = get_errno(ftruncate(arg1, arg2)); 5371 break; 5372 case TARGET_NR_fchmod: 5373 ret = get_errno(fchmod(arg1, arg2)); 5374 break; 5375 #if defined(TARGET_NR_fchmodat) && defined(__NR_fchmodat) 5376 case TARGET_NR_fchmodat: 5377 if (!(p = lock_user_string(arg2))) 5378 goto efault; 5379 ret = get_errno(sys_fchmodat(arg1, p, arg3)); 5380 unlock_user(p, arg2, 0); 5381 break; 5382 #endif 5383 case TARGET_NR_getpriority: 5384 /* libc does special remapping of the return value of 5385 * sys_getpriority() so it's just easiest to call 5386 * sys_getpriority() directly rather than through libc. */ 5387 ret = get_errno(sys_getpriority(arg1, arg2)); 5388 break; 5389 case TARGET_NR_setpriority: 5390 ret = get_errno(setpriority(arg1, arg2, arg3)); 5391 break; 5392 #ifdef TARGET_NR_profil 5393 case TARGET_NR_profil: 5394 goto unimplemented; 5395 #endif 5396 case TARGET_NR_statfs: 5397 if (!(p = lock_user_string(arg1))) 5398 goto efault; 5399 ret = get_errno(statfs(path(p), &stfs)); 5400 unlock_user(p, arg1, 0); 5401 convert_statfs: 5402 if (!is_error(ret)) { 5403 struct target_statfs *target_stfs; 5404 5405 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg2, 0)) 5406 goto efault; 5407 __put_user(stfs.f_type, &target_stfs->f_type); 5408 __put_user(stfs.f_bsize, &target_stfs->f_bsize); 5409 __put_user(stfs.f_blocks, &target_stfs->f_blocks); 5410 __put_user(stfs.f_bfree, &target_stfs->f_bfree); 5411 __put_user(stfs.f_bavail, &target_stfs->f_bavail); 5412 __put_user(stfs.f_files, &target_stfs->f_files); 5413 __put_user(stfs.f_ffree, &target_stfs->f_ffree); 5414 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]); 5415 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]); 5416 __put_user(stfs.f_namelen, &target_stfs->f_namelen); 5417 unlock_user_struct(target_stfs, arg2, 1); 5418 } 5419 break; 5420 case TARGET_NR_fstatfs: 5421 ret = get_errno(fstatfs(arg1, &stfs)); 5422 goto convert_statfs; 5423 #ifdef TARGET_NR_statfs64 5424 case TARGET_NR_statfs64: 5425 if (!(p = lock_user_string(arg1))) 5426 goto efault; 5427 ret = get_errno(statfs(path(p), &stfs)); 5428 unlock_user(p, arg1, 0); 5429 convert_statfs64: 5430 if (!is_error(ret)) { 5431 struct target_statfs64 *target_stfs; 5432 5433 if (!lock_user_struct(VERIFY_WRITE, target_stfs, arg3, 0)) 5434 goto efault; 5435 __put_user(stfs.f_type, &target_stfs->f_type); 5436 __put_user(stfs.f_bsize, &target_stfs->f_bsize); 5437 __put_user(stfs.f_blocks, &target_stfs->f_blocks); 5438 __put_user(stfs.f_bfree, &target_stfs->f_bfree); 5439 __put_user(stfs.f_bavail, &target_stfs->f_bavail); 5440 __put_user(stfs.f_files, &target_stfs->f_files); 5441 __put_user(stfs.f_ffree, &target_stfs->f_ffree); 5442 __put_user(stfs.f_fsid.__val[0], &target_stfs->f_fsid.val[0]); 5443 __put_user(stfs.f_fsid.__val[1], &target_stfs->f_fsid.val[1]); 5444 __put_user(stfs.f_namelen, &target_stfs->f_namelen); 5445 unlock_user_struct(target_stfs, arg3, 1); 5446 } 5447 break; 5448 case TARGET_NR_fstatfs64: 5449 ret = get_errno(fstatfs(arg1, &stfs)); 5450 goto convert_statfs64; 5451 #endif 5452 #ifdef TARGET_NR_ioperm 5453 case TARGET_NR_ioperm: 5454 goto unimplemented; 5455 #endif 5456 #ifdef TARGET_NR_socketcall 5457 case TARGET_NR_socketcall: 5458 ret = do_socketcall(arg1, arg2); 5459 break; 5460 #endif 5461 #ifdef TARGET_NR_accept 5462 case TARGET_NR_accept: 5463 ret = do_accept(arg1, arg2, arg3); 5464 break; 5465 #endif 5466 #ifdef TARGET_NR_bind 5467 case TARGET_NR_bind: 5468 ret = do_bind(arg1, arg2, arg3); 5469 break; 5470 #endif 5471 #ifdef TARGET_NR_connect 5472 case TARGET_NR_connect: 5473 ret = do_connect(arg1, arg2, arg3); 5474 break; 5475 #endif 5476 #ifdef TARGET_NR_getpeername 5477 case TARGET_NR_getpeername: 5478 ret = do_getpeername(arg1, arg2, arg3); 5479 break; 5480 #endif 5481 #ifdef TARGET_NR_getsockname 5482 case TARGET_NR_getsockname: 5483 ret = do_getsockname(arg1, arg2, arg3); 5484 break; 5485 #endif 5486 #ifdef TARGET_NR_getsockopt 5487 case TARGET_NR_getsockopt: 5488 ret = do_getsockopt(arg1, arg2, arg3, arg4, arg5); 5489 break; 5490 #endif 5491 #ifdef TARGET_NR_listen 5492 case TARGET_NR_listen: 5493 ret = get_errno(listen(arg1, arg2)); 5494 break; 5495 #endif 5496 #ifdef TARGET_NR_recv 5497 case TARGET_NR_recv: 5498 ret = do_recvfrom(arg1, arg2, arg3, arg4, 0, 0); 5499 break; 5500 #endif 5501 #ifdef TARGET_NR_recvfrom 5502 case TARGET_NR_recvfrom: 5503 ret = do_recvfrom(arg1, arg2, arg3, arg4, arg5, arg6); 5504 break; 5505 #endif 5506 #ifdef TARGET_NR_recvmsg 5507 case TARGET_NR_recvmsg: 5508 ret = do_sendrecvmsg(arg1, arg2, arg3, 0); 5509 break; 5510 #endif 5511 #ifdef TARGET_NR_send 5512 case TARGET_NR_send: 5513 ret = do_sendto(arg1, arg2, arg3, arg4, 0, 0); 5514 break; 5515 #endif 5516 #ifdef TARGET_NR_sendmsg 5517 case TARGET_NR_sendmsg: 5518 ret = do_sendrecvmsg(arg1, arg2, arg3, 1); 5519 break; 5520 #endif 5521 #ifdef TARGET_NR_sendto 5522 case TARGET_NR_sendto: 5523 ret = do_sendto(arg1, arg2, arg3, arg4, arg5, arg6); 5524 break; 5525 #endif 5526 #ifdef TARGET_NR_shutdown 5527 case TARGET_NR_shutdown: 5528 ret = get_errno(shutdown(arg1, arg2)); 5529 break; 5530 #endif 5531 #ifdef TARGET_NR_socket 5532 case TARGET_NR_socket: 5533 ret = do_socket(arg1, arg2, arg3); 5534 break; 5535 #endif 5536 #ifdef TARGET_NR_socketpair 5537 case TARGET_NR_socketpair: 5538 ret = do_socketpair(arg1, arg2, arg3, arg4); 5539 break; 5540 #endif 5541 #ifdef TARGET_NR_setsockopt 5542 case TARGET_NR_setsockopt: 5543 ret = do_setsockopt(arg1, arg2, arg3, arg4, (socklen_t) arg5); 5544 break; 5545 #endif 5546 5547 case TARGET_NR_syslog: 5548 if (!(p = lock_user_string(arg2))) 5549 goto efault; 5550 ret = get_errno(sys_syslog((int)arg1, p, (int)arg3)); 5551 unlock_user(p, arg2, 0); 5552 break; 5553 5554 case TARGET_NR_setitimer: 5555 { 5556 struct itimerval value, ovalue, *pvalue; 5557 5558 if (arg2) { 5559 pvalue = &value; 5560 if (copy_from_user_timeval(&pvalue->it_interval, arg2) 5561 || copy_from_user_timeval(&pvalue->it_value, 5562 arg2 + sizeof(struct target_timeval))) 5563 goto efault; 5564 } else { 5565 pvalue = NULL; 5566 } 5567 ret = get_errno(setitimer(arg1, pvalue, &ovalue)); 5568 if (!is_error(ret) && arg3) { 5569 if (copy_to_user_timeval(arg3, 5570 &ovalue.it_interval) 5571 || copy_to_user_timeval(arg3 + sizeof(struct target_timeval), 5572 &ovalue.it_value)) 5573 goto efault; 5574 } 5575 } 5576 break; 5577 case TARGET_NR_getitimer: 5578 { 5579 struct itimerval value; 5580 5581 ret = get_errno(getitimer(arg1, &value)); 5582 if (!is_error(ret) && arg2) { 5583 if (copy_to_user_timeval(arg2, 5584 &value.it_interval) 5585 || copy_to_user_timeval(arg2 + sizeof(struct target_timeval), 5586 &value.it_value)) 5587 goto efault; 5588 } 5589 } 5590 break; 5591 case TARGET_NR_stat: 5592 if (!(p = lock_user_string(arg1))) 5593 goto efault; 5594 ret = get_errno(stat(path(p), &st)); 5595 unlock_user(p, arg1, 0); 5596 goto do_stat; 5597 case TARGET_NR_lstat: 5598 if (!(p = lock_user_string(arg1))) 5599 goto efault; 5600 ret = get_errno(lstat(path(p), &st)); 5601 unlock_user(p, arg1, 0); 5602 goto do_stat; 5603 case TARGET_NR_fstat: 5604 { 5605 ret = get_errno(fstat(arg1, &st)); 5606 do_stat: 5607 if (!is_error(ret)) { 5608 struct target_stat *target_st; 5609 5610 if (!lock_user_struct(VERIFY_WRITE, target_st, arg2, 0)) 5611 goto efault; 5612 memset(target_st, 0, sizeof(*target_st)); 5613 __put_user(st.st_dev, &target_st->st_dev); 5614 __put_user(st.st_ino, &target_st->st_ino); 5615 __put_user(st.st_mode, &target_st->st_mode); 5616 __put_user(st.st_uid, &target_st->st_uid); 5617 __put_user(st.st_gid, &target_st->st_gid); 5618 __put_user(st.st_nlink, &target_st->st_nlink); 5619 __put_user(st.st_rdev, &target_st->st_rdev); 5620 __put_user(st.st_size, &target_st->st_size); 5621 __put_user(st.st_blksize, &target_st->st_blksize); 5622 __put_user(st.st_blocks, &target_st->st_blocks); 5623 __put_user(st.st_atime, &target_st->target_st_atime); 5624 __put_user(st.st_mtime, &target_st->target_st_mtime); 5625 __put_user(st.st_ctime, &target_st->target_st_ctime); 5626 unlock_user_struct(target_st, arg2, 1); 5627 } 5628 } 5629 break; 5630 #ifdef TARGET_NR_olduname 5631 case TARGET_NR_olduname: 5632 goto unimplemented; 5633 #endif 5634 #ifdef TARGET_NR_iopl 5635 case TARGET_NR_iopl: 5636 goto unimplemented; 5637 #endif 5638 case TARGET_NR_vhangup: 5639 ret = get_errno(vhangup()); 5640 break; 5641 #ifdef TARGET_NR_idle 5642 case TARGET_NR_idle: 5643 goto unimplemented; 5644 #endif 5645 #ifdef TARGET_NR_syscall 5646 case TARGET_NR_syscall: 5647 ret = do_syscall(cpu_env,arg1 & 0xffff,arg2,arg3,arg4,arg5,arg6,0); 5648 break; 5649 #endif 5650 case TARGET_NR_wait4: 5651 { 5652 int status; 5653 abi_long status_ptr = arg2; 5654 struct rusage rusage, *rusage_ptr; 5655 abi_ulong target_rusage = arg4; 5656 if (target_rusage) 5657 rusage_ptr = &rusage; 5658 else 5659 rusage_ptr = NULL; 5660 ret = get_errno(wait4(arg1, &status, arg3, rusage_ptr)); 5661 if (!is_error(ret)) { 5662 if (status_ptr) { 5663 status = host_to_target_waitstatus(status); 5664 if (put_user_s32(status, status_ptr)) 5665 goto efault; 5666 } 5667 if (target_rusage) 5668 host_to_target_rusage(target_rusage, &rusage); 5669 } 5670 } 5671 break; 5672 #ifdef TARGET_NR_swapoff 5673 case TARGET_NR_swapoff: 5674 if (!(p = lock_user_string(arg1))) 5675 goto efault; 5676 ret = get_errno(swapoff(p)); 5677 unlock_user(p, arg1, 0); 5678 break; 5679 #endif 5680 case TARGET_NR_sysinfo: 5681 { 5682 struct target_sysinfo *target_value; 5683 struct sysinfo value; 5684 ret = get_errno(sysinfo(&value)); 5685 if (!is_error(ret) && arg1) 5686 { 5687 if (!lock_user_struct(VERIFY_WRITE, target_value, arg1, 0)) 5688 goto efault; 5689 __put_user(value.uptime, &target_value->uptime); 5690 __put_user(value.loads[0], &target_value->loads[0]); 5691 __put_user(value.loads[1], &target_value->loads[1]); 5692 __put_user(value.loads[2], &target_value->loads[2]); 5693 __put_user(value.totalram, &target_value->totalram); 5694 __put_user(value.freeram, &target_value->freeram); 5695 __put_user(value.sharedram, &target_value->sharedram); 5696 __put_user(value.bufferram, &target_value->bufferram); 5697 __put_user(value.totalswap, &target_value->totalswap); 5698 __put_user(value.freeswap, &target_value->freeswap); 5699 __put_user(value.procs, &target_value->procs); 5700 __put_user(value.totalhigh, &target_value->totalhigh); 5701 __put_user(value.freehigh, &target_value->freehigh); 5702 __put_user(value.mem_unit, &target_value->mem_unit); 5703 unlock_user_struct(target_value, arg1, 1); 5704 } 5705 } 5706 break; 5707 #ifdef TARGET_NR_ipc 5708 case TARGET_NR_ipc: 5709 ret = do_ipc(arg1, arg2, arg3, arg4, arg5, arg6); 5710 break; 5711 #endif 5712 #ifdef TARGET_NR_semget 5713 case TARGET_NR_semget: 5714 ret = get_errno(semget(arg1, arg2, arg3)); 5715 break; 5716 #endif 5717 #ifdef TARGET_NR_semop 5718 case TARGET_NR_semop: 5719 ret = get_errno(do_semop(arg1, arg2, arg3)); 5720 break; 5721 #endif 5722 #ifdef TARGET_NR_semctl 5723 case TARGET_NR_semctl: 5724 ret = do_semctl(arg1, arg2, arg3, (union target_semun)(abi_ulong)arg4); 5725 break; 5726 #endif 5727 #ifdef TARGET_NR_msgctl 5728 case TARGET_NR_msgctl: 5729 ret = do_msgctl(arg1, arg2, arg3); 5730 break; 5731 #endif 5732 #ifdef TARGET_NR_msgget 5733 case TARGET_NR_msgget: 5734 ret = get_errno(msgget(arg1, arg2)); 5735 break; 5736 #endif 5737 #ifdef TARGET_NR_msgrcv 5738 case TARGET_NR_msgrcv: 5739 ret = do_msgrcv(arg1, arg2, arg3, arg4, arg5); 5740 break; 5741 #endif 5742 #ifdef TARGET_NR_msgsnd 5743 case TARGET_NR_msgsnd: 5744 ret = do_msgsnd(arg1, arg2, arg3, arg4); 5745 break; 5746 #endif 5747 #ifdef TARGET_NR_shmget 5748 case TARGET_NR_shmget: 5749 ret = get_errno(shmget(arg1, arg2, arg3)); 5750 break; 5751 #endif 5752 #ifdef TARGET_NR_shmctl 5753 case TARGET_NR_shmctl: 5754 ret = do_shmctl(arg1, arg2, arg3); 5755 break; 5756 #endif 5757 #ifdef TARGET_NR_shmat 5758 case TARGET_NR_shmat: 5759 ret = do_shmat(arg1, arg2, arg3); 5760 break; 5761 #endif 5762 #ifdef TARGET_NR_shmdt 5763 case TARGET_NR_shmdt: 5764 ret = do_shmdt(arg1); 5765 break; 5766 #endif 5767 case TARGET_NR_fsync: 5768 ret = get_errno(fsync(arg1)); 5769 break; 5770 case TARGET_NR_clone: 5771 #if defined(TARGET_SH4) 5772 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg5, arg4)); 5773 #elif defined(TARGET_CRIS) 5774 ret = get_errno(do_fork(cpu_env, arg2, arg1, arg3, arg4, arg5)); 5775 #else 5776 ret = get_errno(do_fork(cpu_env, arg1, arg2, arg3, arg4, arg5)); 5777 #endif 5778 break; 5779 #ifdef __NR_exit_group 5780 /* new thread calls */ 5781 case TARGET_NR_exit_group: 5782 #ifdef TARGET_GPROF 5783 _mcleanup(); 5784 #endif 5785 gdb_exit(cpu_env, arg1); 5786 ret = get_errno(exit_group(arg1)); 5787 break; 5788 #endif 5789 case TARGET_NR_setdomainname: 5790 if (!(p = lock_user_string(arg1))) 5791 goto efault; 5792 ret = get_errno(setdomainname(p, arg2)); 5793 unlock_user(p, arg1, 0); 5794 break; 5795 case TARGET_NR_uname: 5796 /* no need to transcode because we use the linux syscall */ 5797 { 5798 struct new_utsname * buf; 5799 5800 if (!lock_user_struct(VERIFY_WRITE, buf, arg1, 0)) 5801 goto efault; 5802 ret = get_errno(sys_uname(buf)); 5803 if (!is_error(ret)) { 5804 /* Overrite the native machine name with whatever is being 5805 emulated. */ 5806 strcpy (buf->machine, cpu_to_uname_machine(cpu_env)); 5807 /* Allow the user to override the reported release. */ 5808 if (qemu_uname_release && *qemu_uname_release) 5809 strcpy (buf->release, qemu_uname_release); 5810 } 5811 unlock_user_struct(buf, arg1, 1); 5812 } 5813 break; 5814 #ifdef TARGET_I386 5815 case TARGET_NR_modify_ldt: 5816 ret = do_modify_ldt(cpu_env, arg1, arg2, arg3); 5817 break; 5818 #if !defined(TARGET_X86_64) 5819 case TARGET_NR_vm86old: 5820 goto unimplemented; 5821 case TARGET_NR_vm86: 5822 ret = do_vm86(cpu_env, arg1, arg2); 5823 break; 5824 #endif 5825 #endif 5826 case TARGET_NR_adjtimex: 5827 goto unimplemented; 5828 #ifdef TARGET_NR_create_module 5829 case TARGET_NR_create_module: 5830 #endif 5831 case TARGET_NR_init_module: 5832 case TARGET_NR_delete_module: 5833 #ifdef TARGET_NR_get_kernel_syms 5834 case TARGET_NR_get_kernel_syms: 5835 #endif 5836 goto unimplemented; 5837 case TARGET_NR_quotactl: 5838 goto unimplemented; 5839 case TARGET_NR_getpgid: 5840 ret = get_errno(getpgid(arg1)); 5841 break; 5842 case TARGET_NR_fchdir: 5843 ret = get_errno(fchdir(arg1)); 5844 break; 5845 #ifdef TARGET_NR_bdflush /* not on x86_64 */ 5846 case TARGET_NR_bdflush: 5847 goto unimplemented; 5848 #endif 5849 #ifdef TARGET_NR_sysfs 5850 case TARGET_NR_sysfs: 5851 goto unimplemented; 5852 #endif 5853 case TARGET_NR_personality: 5854 ret = get_errno(personality(arg1)); 5855 break; 5856 #ifdef TARGET_NR_afs_syscall 5857 case TARGET_NR_afs_syscall: 5858 goto unimplemented; 5859 #endif 5860 #ifdef TARGET_NR__llseek /* Not on alpha */ 5861 case TARGET_NR__llseek: 5862 { 5863 #if defined (__x86_64__) 5864 ret = get_errno(lseek(arg1, ((uint64_t )arg2 << 32) | arg3, arg5)); 5865 if (put_user_s64(ret, arg4)) 5866 goto efault; 5867 #else 5868 int64_t res; 5869 ret = get_errno(_llseek(arg1, arg2, arg3, &res, arg5)); 5870 if (put_user_s64(res, arg4)) 5871 goto efault; 5872 #endif 5873 } 5874 break; 5875 #endif 5876 case TARGET_NR_getdents: 5877 #if TARGET_ABI_BITS == 32 && HOST_LONG_BITS == 64 5878 { 5879 struct target_dirent *target_dirp; 5880 struct linux_dirent *dirp; 5881 abi_long count = arg3; 5882 5883 dirp = malloc(count); 5884 if (!dirp) { 5885 ret = -TARGET_ENOMEM; 5886 goto fail; 5887 } 5888 5889 ret = get_errno(sys_getdents(arg1, dirp, count)); 5890 if (!is_error(ret)) { 5891 struct linux_dirent *de; 5892 struct target_dirent *tde; 5893 int len = ret; 5894 int reclen, treclen; 5895 int count1, tnamelen; 5896 5897 count1 = 0; 5898 de = dirp; 5899 if (!(target_dirp = lock_user(VERIFY_WRITE, arg2, count, 0))) 5900 goto efault; 5901 tde = target_dirp; 5902 while (len > 0) { 5903 reclen = de->d_reclen; 5904 treclen = reclen - (2 * (sizeof(long) - sizeof(abi_long))); 5905 tde->d_reclen = tswap16(treclen); 5906 tde->d_ino = tswapl(de->d_ino); 5907 tde->d_off = tswapl(de->d_off); 5908 tnamelen = treclen - (2 * sizeof(abi_long) + 2); 5909 if (tnamelen > 256) 5910 tnamelen = 256; 5911 /* XXX: may not be correct */ 5912 pstrcpy(tde->d_name, tnamelen, de->d_name); 5913 de = (struct linux_dirent *)((char *)de + reclen); 5914 len -= reclen; 5915 tde = (struct target_dirent *)((char *)tde + treclen); 5916 count1 += treclen; 5917 } 5918 ret = count1; 5919 unlock_user(target_dirp, arg2, ret); 5920 } 5921 free(dirp); 5922 } 5923 #else 5924 { 5925 struct linux_dirent *dirp; 5926 abi_long count = arg3; 5927 5928 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0))) 5929 goto efault; 5930 ret = get_errno(sys_getdents(arg1, dirp, count)); 5931 if (!is_error(ret)) { 5932 struct linux_dirent *de; 5933 int len = ret; 5934 int reclen; 5935 de = dirp; 5936 while (len > 0) { 5937 reclen = de->d_reclen; 5938 if (reclen > len) 5939 break; 5940 de->d_reclen = tswap16(reclen); 5941 tswapls(&de->d_ino); 5942 tswapls(&de->d_off); 5943 de = (struct linux_dirent *)((char *)de + reclen); 5944 len -= reclen; 5945 } 5946 } 5947 unlock_user(dirp, arg2, ret); 5948 } 5949 #endif 5950 break; 5951 #if defined(TARGET_NR_getdents64) && defined(__NR_getdents64) 5952 case TARGET_NR_getdents64: 5953 { 5954 struct linux_dirent64 *dirp; 5955 abi_long count = arg3; 5956 if (!(dirp = lock_user(VERIFY_WRITE, arg2, count, 0))) 5957 goto efault; 5958 ret = get_errno(sys_getdents64(arg1, dirp, count)); 5959 if (!is_error(ret)) { 5960 struct linux_dirent64 *de; 5961 int len = ret; 5962 int reclen; 5963 de = dirp; 5964 while (len > 0) { 5965 reclen = de->d_reclen; 5966 if (reclen > len) 5967 break; 5968 de->d_reclen = tswap16(reclen); 5969 tswap64s((uint64_t *)&de->d_ino); 5970 tswap64s((uint64_t *)&de->d_off); 5971 de = (struct linux_dirent64 *)((char *)de + reclen); 5972 len -= reclen; 5973 } 5974 } 5975 unlock_user(dirp, arg2, ret); 5976 } 5977 break; 5978 #endif /* TARGET_NR_getdents64 */ 5979 #ifdef TARGET_NR__newselect 5980 case TARGET_NR__newselect: 5981 ret = do_select(arg1, arg2, arg3, arg4, arg5); 5982 break; 5983 #endif 5984 #ifdef TARGET_NR_poll 5985 case TARGET_NR_poll: 5986 { 5987 struct target_pollfd *target_pfd; 5988 unsigned int nfds = arg2; 5989 int timeout = arg3; 5990 struct pollfd *pfd; 5991 unsigned int i; 5992 5993 target_pfd = lock_user(VERIFY_WRITE, arg1, sizeof(struct target_pollfd) * nfds, 1); 5994 if (!target_pfd) 5995 goto efault; 5996 pfd = alloca(sizeof(struct pollfd) * nfds); 5997 for(i = 0; i < nfds; i++) { 5998 pfd[i].fd = tswap32(target_pfd[i].fd); 5999 pfd[i].events = tswap16(target_pfd[i].events); 6000 } 6001 ret = get_errno(poll(pfd, nfds, timeout)); 6002 if (!is_error(ret)) { 6003 for(i = 0; i < nfds; i++) { 6004 target_pfd[i].revents = tswap16(pfd[i].revents); 6005 } 6006 ret += nfds * (sizeof(struct target_pollfd) 6007 - sizeof(struct pollfd)); 6008 } 6009 unlock_user(target_pfd, arg1, ret); 6010 } 6011 break; 6012 #endif 6013 case TARGET_NR_flock: 6014 /* NOTE: the flock constant seems to be the same for every 6015 Linux platform */ 6016 ret = get_errno(flock(arg1, arg2)); 6017 break; 6018 case TARGET_NR_readv: 6019 { 6020 int count = arg3; 6021 struct iovec *vec; 6022 6023 vec = alloca(count * sizeof(struct iovec)); 6024 if (lock_iovec(VERIFY_WRITE, vec, arg2, count, 0) < 0) 6025 goto efault; 6026 ret = get_errno(readv(arg1, vec, count)); 6027 unlock_iovec(vec, arg2, count, 1); 6028 } 6029 break; 6030 case TARGET_NR_writev: 6031 { 6032 int count = arg3; 6033 struct iovec *vec; 6034 6035 vec = alloca(count * sizeof(struct iovec)); 6036 if (lock_iovec(VERIFY_READ, vec, arg2, count, 1) < 0) 6037 goto efault; 6038 ret = get_errno(writev(arg1, vec, count)); 6039 unlock_iovec(vec, arg2, count, 0); 6040 } 6041 break; 6042 case TARGET_NR_getsid: 6043 ret = get_errno(getsid(arg1)); 6044 break; 6045 #if defined(TARGET_NR_fdatasync) /* Not on alpha (osf_datasync ?) */ 6046 case TARGET_NR_fdatasync: 6047 ret = get_errno(fdatasync(arg1)); 6048 break; 6049 #endif 6050 case TARGET_NR__sysctl: 6051 /* We don't implement this, but ENOTDIR is always a safe 6052 return value. */ 6053 ret = -TARGET_ENOTDIR; 6054 break; 6055 case TARGET_NR_sched_setparam: 6056 { 6057 struct sched_param *target_schp; 6058 struct sched_param schp; 6059 6060 if (!lock_user_struct(VERIFY_READ, target_schp, arg2, 1)) 6061 goto efault; 6062 schp.sched_priority = tswap32(target_schp->sched_priority); 6063 unlock_user_struct(target_schp, arg2, 0); 6064 ret = get_errno(sched_setparam(arg1, &schp)); 6065 } 6066 break; 6067 case TARGET_NR_sched_getparam: 6068 { 6069 struct sched_param *target_schp; 6070 struct sched_param schp; 6071 ret = get_errno(sched_getparam(arg1, &schp)); 6072 if (!is_error(ret)) { 6073 if (!lock_user_struct(VERIFY_WRITE, target_schp, arg2, 0)) 6074 goto efault; 6075 target_schp->sched_priority = tswap32(schp.sched_priority); 6076 unlock_user_struct(target_schp, arg2, 1); 6077 } 6078 } 6079 break; 6080 case TARGET_NR_sched_setscheduler: 6081 { 6082 struct sched_param *target_schp; 6083 struct sched_param schp; 6084 if (!lock_user_struct(VERIFY_READ, target_schp, arg3, 1)) 6085 goto efault; 6086 schp.sched_priority = tswap32(target_schp->sched_priority); 6087 unlock_user_struct(target_schp, arg3, 0); 6088 ret = get_errno(sched_setscheduler(arg1, arg2, &schp)); 6089 } 6090 break; 6091 case TARGET_NR_sched_getscheduler: 6092 ret = get_errno(sched_getscheduler(arg1)); 6093 break; 6094 case TARGET_NR_sched_yield: 6095 ret = get_errno(sched_yield()); 6096 break; 6097 case TARGET_NR_sched_get_priority_max: 6098 ret = get_errno(sched_get_priority_max(arg1)); 6099 break; 6100 case TARGET_NR_sched_get_priority_min: 6101 ret = get_errno(sched_get_priority_min(arg1)); 6102 break; 6103 case TARGET_NR_sched_rr_get_interval: 6104 { 6105 struct timespec ts; 6106 ret = get_errno(sched_rr_get_interval(arg1, &ts)); 6107 if (!is_error(ret)) { 6108 host_to_target_timespec(arg2, &ts); 6109 } 6110 } 6111 break; 6112 case TARGET_NR_nanosleep: 6113 { 6114 struct timespec req, rem; 6115 target_to_host_timespec(&req, arg1); 6116 ret = get_errno(nanosleep(&req, &rem)); 6117 if (is_error(ret) && arg2) { 6118 host_to_target_timespec(arg2, &rem); 6119 } 6120 } 6121 break; 6122 #ifdef TARGET_NR_query_module 6123 case TARGET_NR_query_module: 6124 goto unimplemented; 6125 #endif 6126 #ifdef TARGET_NR_nfsservctl 6127 case TARGET_NR_nfsservctl: 6128 goto unimplemented; 6129 #endif 6130 case TARGET_NR_prctl: 6131 switch (arg1) 6132 { 6133 case PR_GET_PDEATHSIG: 6134 { 6135 int deathsig; 6136 ret = get_errno(prctl(arg1, &deathsig, arg3, arg4, arg5)); 6137 if (!is_error(ret) && arg2 6138 && put_user_ual(deathsig, arg2)) 6139 goto efault; 6140 } 6141 break; 6142 default: 6143 ret = get_errno(prctl(arg1, arg2, arg3, arg4, arg5)); 6144 break; 6145 } 6146 break; 6147 #ifdef TARGET_NR_arch_prctl 6148 case TARGET_NR_arch_prctl: 6149 #if defined(TARGET_I386) && !defined(TARGET_ABI32) 6150 ret = do_arch_prctl(cpu_env, arg1, arg2); 6151 break; 6152 #else 6153 goto unimplemented; 6154 #endif 6155 #endif 6156 #ifdef TARGET_NR_pread 6157 case TARGET_NR_pread: 6158 #ifdef TARGET_ARM 6159 if (((CPUARMState *)cpu_env)->eabi) 6160 arg4 = arg5; 6161 #endif 6162 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0))) 6163 goto efault; 6164 ret = get_errno(pread(arg1, p, arg3, arg4)); 6165 unlock_user(p, arg2, ret); 6166 break; 6167 case TARGET_NR_pwrite: 6168 #ifdef TARGET_ARM 6169 if (((CPUARMState *)cpu_env)->eabi) 6170 arg4 = arg5; 6171 #endif 6172 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1))) 6173 goto efault; 6174 ret = get_errno(pwrite(arg1, p, arg3, arg4)); 6175 unlock_user(p, arg2, 0); 6176 break; 6177 #endif 6178 #ifdef TARGET_NR_pread64 6179 case TARGET_NR_pread64: 6180 if (!(p = lock_user(VERIFY_WRITE, arg2, arg3, 0))) 6181 goto efault; 6182 ret = get_errno(pread64(arg1, p, arg3, target_offset64(arg4, arg5))); 6183 unlock_user(p, arg2, ret); 6184 break; 6185 case TARGET_NR_pwrite64: 6186 if (!(p = lock_user(VERIFY_READ, arg2, arg3, 1))) 6187 goto efault; 6188 ret = get_errno(pwrite64(arg1, p, arg3, target_offset64(arg4, arg5))); 6189 unlock_user(p, arg2, 0); 6190 break; 6191 #endif 6192 case TARGET_NR_getcwd: 6193 if (!(p = lock_user(VERIFY_WRITE, arg1, arg2, 0))) 6194 goto efault; 6195 ret = get_errno(sys_getcwd1(p, arg2)); 6196 unlock_user(p, arg1, ret); 6197 break; 6198 case TARGET_NR_capget: 6199 goto unimplemented; 6200 case TARGET_NR_capset: 6201 goto unimplemented; 6202 case TARGET_NR_sigaltstack: 6203 #if defined(TARGET_I386) || defined(TARGET_ARM) || defined(TARGET_MIPS) || \ 6204 defined(TARGET_SPARC) || defined(TARGET_PPC) || defined(TARGET_ALPHA) || \ 6205 defined(TARGET_M68K) 6206 ret = do_sigaltstack(arg1, arg2, get_sp_from_cpustate((CPUState *)cpu_env)); 6207 break; 6208 #else 6209 goto unimplemented; 6210 #endif 6211 case TARGET_NR_sendfile: 6212 goto unimplemented; 6213 #ifdef TARGET_NR_getpmsg 6214 case TARGET_NR_getpmsg: 6215 goto unimplemented; 6216 #endif 6217 #ifdef TARGET_NR_putpmsg 6218 case TARGET_NR_putpmsg: 6219 goto unimplemented; 6220 #endif 6221 #ifdef TARGET_NR_vfork 6222 case TARGET_NR_vfork: 6223 ret = get_errno(do_fork(cpu_env, CLONE_VFORK | CLONE_VM | SIGCHLD, 6224 0, 0, 0, 0)); 6225 break; 6226 #endif 6227 #ifdef TARGET_NR_ugetrlimit 6228 case TARGET_NR_ugetrlimit: 6229 { 6230 struct rlimit rlim; 6231 ret = get_errno(getrlimit(arg1, &rlim)); 6232 if (!is_error(ret)) { 6233 struct target_rlimit *target_rlim; 6234 if (!lock_user_struct(VERIFY_WRITE, target_rlim, arg2, 0)) 6235 goto efault; 6236 target_rlim->rlim_cur = tswapl(rlim.rlim_cur); 6237 target_rlim->rlim_max = tswapl(rlim.rlim_max); 6238 unlock_user_struct(target_rlim, arg2, 1); 6239 } 6240 break; 6241 } 6242 #endif 6243 #ifdef TARGET_NR_truncate64 6244 case TARGET_NR_truncate64: 6245 if (!(p = lock_user_string(arg1))) 6246 goto efault; 6247 ret = target_truncate64(cpu_env, p, arg2, arg3, arg4); 6248 unlock_user(p, arg1, 0); 6249 break; 6250 #endif 6251 #ifdef TARGET_NR_ftruncate64 6252 case TARGET_NR_ftruncate64: 6253 ret = target_ftruncate64(cpu_env, arg1, arg2, arg3, arg4); 6254 break; 6255 #endif 6256 #ifdef TARGET_NR_stat64 6257 case TARGET_NR_stat64: 6258 if (!(p = lock_user_string(arg1))) 6259 goto efault; 6260 ret = get_errno(stat(path(p), &st)); 6261 unlock_user(p, arg1, 0); 6262 if (!is_error(ret)) 6263 ret = host_to_target_stat64(cpu_env, arg2, &st); 6264 break; 6265 #endif 6266 #ifdef TARGET_NR_lstat64 6267 case TARGET_NR_lstat64: 6268 if (!(p = lock_user_string(arg1))) 6269 goto efault; 6270 ret = get_errno(lstat(path(p), &st)); 6271 unlock_user(p, arg1, 0); 6272 if (!is_error(ret)) 6273 ret = host_to_target_stat64(cpu_env, arg2, &st); 6274 break; 6275 #endif 6276 #ifdef TARGET_NR_fstat64 6277 case TARGET_NR_fstat64: 6278 ret = get_errno(fstat(arg1, &st)); 6279 if (!is_error(ret)) 6280 ret = host_to_target_stat64(cpu_env, arg2, &st); 6281 break; 6282 #endif 6283 #if (defined(TARGET_NR_fstatat64) || defined(TARGET_NR_newfstatat)) && \ 6284 (defined(__NR_fstatat64) || defined(__NR_newfstatat)) 6285 #ifdef TARGET_NR_fstatat64 6286 case TARGET_NR_fstatat64: 6287 #endif 6288 #ifdef TARGET_NR_newfstatat 6289 case TARGET_NR_newfstatat: 6290 #endif 6291 if (!(p = lock_user_string(arg2))) 6292 goto efault; 6293 #ifdef __NR_fstatat64 6294 ret = get_errno(sys_fstatat64(arg1, path(p), &st, arg4)); 6295 #else 6296 ret = get_errno(sys_newfstatat(arg1, path(p), &st, arg4)); 6297 #endif 6298 if (!is_error(ret)) 6299 ret = host_to_target_stat64(cpu_env, arg3, &st); 6300 break; 6301 #endif 6302 #ifdef USE_UID16 6303 case TARGET_NR_lchown: 6304 if (!(p = lock_user_string(arg1))) 6305 goto efault; 6306 ret = get_errno(lchown(p, low2highuid(arg2), low2highgid(arg3))); 6307 unlock_user(p, arg1, 0); 6308 break; 6309 case TARGET_NR_getuid: 6310 ret = get_errno(high2lowuid(getuid())); 6311 break; 6312 case TARGET_NR_getgid: 6313 ret = get_errno(high2lowgid(getgid())); 6314 break; 6315 case TARGET_NR_geteuid: 6316 ret = get_errno(high2lowuid(geteuid())); 6317 break; 6318 case TARGET_NR_getegid: 6319 ret = get_errno(high2lowgid(getegid())); 6320 break; 6321 case TARGET_NR_setreuid: 6322 ret = get_errno(setreuid(low2highuid(arg1), low2highuid(arg2))); 6323 break; 6324 case TARGET_NR_setregid: 6325 ret = get_errno(setregid(low2highgid(arg1), low2highgid(arg2))); 6326 break; 6327 case TARGET_NR_getgroups: 6328 { 6329 int gidsetsize = arg1; 6330 uint16_t *target_grouplist; 6331 gid_t *grouplist; 6332 int i; 6333 6334 grouplist = alloca(gidsetsize * sizeof(gid_t)); 6335 ret = get_errno(getgroups(gidsetsize, grouplist)); 6336 if (gidsetsize == 0) 6337 break; 6338 if (!is_error(ret)) { 6339 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 2, 0); 6340 if (!target_grouplist) 6341 goto efault; 6342 for(i = 0;i < ret; i++) 6343 target_grouplist[i] = tswap16(grouplist[i]); 6344 unlock_user(target_grouplist, arg2, gidsetsize * 2); 6345 } 6346 } 6347 break; 6348 case TARGET_NR_setgroups: 6349 { 6350 int gidsetsize = arg1; 6351 uint16_t *target_grouplist; 6352 gid_t *grouplist; 6353 int i; 6354 6355 grouplist = alloca(gidsetsize * sizeof(gid_t)); 6356 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 2, 1); 6357 if (!target_grouplist) { 6358 ret = -TARGET_EFAULT; 6359 goto fail; 6360 } 6361 for(i = 0;i < gidsetsize; i++) 6362 grouplist[i] = tswap16(target_grouplist[i]); 6363 unlock_user(target_grouplist, arg2, 0); 6364 ret = get_errno(setgroups(gidsetsize, grouplist)); 6365 } 6366 break; 6367 case TARGET_NR_fchown: 6368 ret = get_errno(fchown(arg1, low2highuid(arg2), low2highgid(arg3))); 6369 break; 6370 #if defined(TARGET_NR_fchownat) && defined(__NR_fchownat) 6371 case TARGET_NR_fchownat: 6372 if (!(p = lock_user_string(arg2))) 6373 goto efault; 6374 ret = get_errno(sys_fchownat(arg1, p, low2highuid(arg3), low2highgid(arg4), arg5)); 6375 unlock_user(p, arg2, 0); 6376 break; 6377 #endif 6378 #ifdef TARGET_NR_setresuid 6379 case TARGET_NR_setresuid: 6380 ret = get_errno(setresuid(low2highuid(arg1), 6381 low2highuid(arg2), 6382 low2highuid(arg3))); 6383 break; 6384 #endif 6385 #ifdef TARGET_NR_getresuid 6386 case TARGET_NR_getresuid: 6387 { 6388 uid_t ruid, euid, suid; 6389 ret = get_errno(getresuid(&ruid, &euid, &suid)); 6390 if (!is_error(ret)) { 6391 if (put_user_u16(high2lowuid(ruid), arg1) 6392 || put_user_u16(high2lowuid(euid), arg2) 6393 || put_user_u16(high2lowuid(suid), arg3)) 6394 goto efault; 6395 } 6396 } 6397 break; 6398 #endif 6399 #ifdef TARGET_NR_getresgid 6400 case TARGET_NR_setresgid: 6401 ret = get_errno(setresgid(low2highgid(arg1), 6402 low2highgid(arg2), 6403 low2highgid(arg3))); 6404 break; 6405 #endif 6406 #ifdef TARGET_NR_getresgid 6407 case TARGET_NR_getresgid: 6408 { 6409 gid_t rgid, egid, sgid; 6410 ret = get_errno(getresgid(&rgid, &egid, &sgid)); 6411 if (!is_error(ret)) { 6412 if (put_user_u16(high2lowgid(rgid), arg1) 6413 || put_user_u16(high2lowgid(egid), arg2) 6414 || put_user_u16(high2lowgid(sgid), arg3)) 6415 goto efault; 6416 } 6417 } 6418 break; 6419 #endif 6420 case TARGET_NR_chown: 6421 if (!(p = lock_user_string(arg1))) 6422 goto efault; 6423 ret = get_errno(chown(p, low2highuid(arg2), low2highgid(arg3))); 6424 unlock_user(p, arg1, 0); 6425 break; 6426 case TARGET_NR_setuid: 6427 ret = get_errno(setuid(low2highuid(arg1))); 6428 break; 6429 case TARGET_NR_setgid: 6430 ret = get_errno(setgid(low2highgid(arg1))); 6431 break; 6432 case TARGET_NR_setfsuid: 6433 ret = get_errno(setfsuid(arg1)); 6434 break; 6435 case TARGET_NR_setfsgid: 6436 ret = get_errno(setfsgid(arg1)); 6437 break; 6438 #endif /* USE_UID16 */ 6439 6440 #ifdef TARGET_NR_lchown32 6441 case TARGET_NR_lchown32: 6442 if (!(p = lock_user_string(arg1))) 6443 goto efault; 6444 ret = get_errno(lchown(p, arg2, arg3)); 6445 unlock_user(p, arg1, 0); 6446 break; 6447 #endif 6448 #ifdef TARGET_NR_getuid32 6449 case TARGET_NR_getuid32: 6450 ret = get_errno(getuid()); 6451 break; 6452 #endif 6453 6454 #if defined(TARGET_NR_getxuid) && defined(TARGET_ALPHA) 6455 /* Alpha specific */ 6456 case TARGET_NR_getxuid: 6457 { 6458 uid_t euid; 6459 euid=geteuid(); 6460 ((CPUAlphaState *)cpu_env)->ir[IR_A4]=euid; 6461 } 6462 ret = get_errno(getuid()); 6463 break; 6464 #endif 6465 #if defined(TARGET_NR_getxgid) && defined(TARGET_ALPHA) 6466 /* Alpha specific */ 6467 case TARGET_NR_getxgid: 6468 { 6469 uid_t egid; 6470 egid=getegid(); 6471 ((CPUAlphaState *)cpu_env)->ir[IR_A4]=egid; 6472 } 6473 ret = get_errno(getgid()); 6474 break; 6475 #endif 6476 #if defined(TARGET_NR_osf_getsysinfo) && defined(TARGET_ALPHA) 6477 /* Alpha specific */ 6478 case TARGET_NR_osf_getsysinfo: 6479 ret = -TARGET_EOPNOTSUPP; 6480 switch (arg1) { 6481 case TARGET_GSI_IEEE_FP_CONTROL: 6482 { 6483 uint64_t swcr, fpcr = cpu_alpha_load_fpcr (cpu_env); 6484 6485 /* Copied from linux ieee_fpcr_to_swcr. */ 6486 swcr = (fpcr >> 35) & SWCR_STATUS_MASK; 6487 swcr |= (fpcr >> 36) & SWCR_MAP_DMZ; 6488 swcr |= (~fpcr >> 48) & (SWCR_TRAP_ENABLE_INV 6489 | SWCR_TRAP_ENABLE_DZE 6490 | SWCR_TRAP_ENABLE_OVF); 6491 swcr |= (~fpcr >> 57) & (SWCR_TRAP_ENABLE_UNF 6492 | SWCR_TRAP_ENABLE_INE); 6493 swcr |= (fpcr >> 47) & SWCR_MAP_UMZ; 6494 swcr |= (~fpcr >> 41) & SWCR_TRAP_ENABLE_DNO; 6495 6496 if (put_user_u64 (swcr, arg2)) 6497 goto efault; 6498 ret = 0; 6499 } 6500 break; 6501 6502 /* case GSI_IEEE_STATE_AT_SIGNAL: 6503 -- Not implemented in linux kernel. 6504 case GSI_UACPROC: 6505 -- Retrieves current unaligned access state; not much used. 6506 case GSI_PROC_TYPE: 6507 -- Retrieves implver information; surely not used. 6508 case GSI_GET_HWRPB: 6509 -- Grabs a copy of the HWRPB; surely not used. 6510 */ 6511 } 6512 break; 6513 #endif 6514 #if defined(TARGET_NR_osf_setsysinfo) && defined(TARGET_ALPHA) 6515 /* Alpha specific */ 6516 case TARGET_NR_osf_setsysinfo: 6517 ret = -TARGET_EOPNOTSUPP; 6518 switch (arg1) { 6519 case TARGET_SSI_IEEE_FP_CONTROL: 6520 case TARGET_SSI_IEEE_RAISE_EXCEPTION: 6521 { 6522 uint64_t swcr, fpcr, orig_fpcr; 6523 6524 if (get_user_u64 (swcr, arg2)) 6525 goto efault; 6526 orig_fpcr = cpu_alpha_load_fpcr (cpu_env); 6527 fpcr = orig_fpcr & FPCR_DYN_MASK; 6528 6529 /* Copied from linux ieee_swcr_to_fpcr. */ 6530 fpcr |= (swcr & SWCR_STATUS_MASK) << 35; 6531 fpcr |= (swcr & SWCR_MAP_DMZ) << 36; 6532 fpcr |= (~swcr & (SWCR_TRAP_ENABLE_INV 6533 | SWCR_TRAP_ENABLE_DZE 6534 | SWCR_TRAP_ENABLE_OVF)) << 48; 6535 fpcr |= (~swcr & (SWCR_TRAP_ENABLE_UNF 6536 | SWCR_TRAP_ENABLE_INE)) << 57; 6537 fpcr |= (swcr & SWCR_MAP_UMZ ? FPCR_UNDZ | FPCR_UNFD : 0); 6538 fpcr |= (~swcr & SWCR_TRAP_ENABLE_DNO) << 41; 6539 6540 cpu_alpha_store_fpcr (cpu_env, fpcr); 6541 ret = 0; 6542 6543 if (arg1 == TARGET_SSI_IEEE_RAISE_EXCEPTION) { 6544 /* Old exceptions are not signaled. */ 6545 fpcr &= ~(orig_fpcr & FPCR_STATUS_MASK); 6546 6547 /* If any exceptions set by this call, and are unmasked, 6548 send a signal. */ 6549 /* ??? FIXME */ 6550 } 6551 } 6552 break; 6553 6554 /* case SSI_NVPAIRS: 6555 -- Used with SSIN_UACPROC to enable unaligned accesses. 6556 case SSI_IEEE_STATE_AT_SIGNAL: 6557 case SSI_IEEE_IGNORE_STATE_AT_SIGNAL: 6558 -- Not implemented in linux kernel 6559 */ 6560 } 6561 break; 6562 #endif 6563 #ifdef TARGET_NR_osf_sigprocmask 6564 /* Alpha specific. */ 6565 case TARGET_NR_osf_sigprocmask: 6566 { 6567 abi_ulong mask; 6568 int how = arg1; 6569 sigset_t set, oldset; 6570 6571 switch(arg1) { 6572 case TARGET_SIG_BLOCK: 6573 how = SIG_BLOCK; 6574 break; 6575 case TARGET_SIG_UNBLOCK: 6576 how = SIG_UNBLOCK; 6577 break; 6578 case TARGET_SIG_SETMASK: 6579 how = SIG_SETMASK; 6580 break; 6581 default: 6582 ret = -TARGET_EINVAL; 6583 goto fail; 6584 } 6585 mask = arg2; 6586 target_to_host_old_sigset(&set, &mask); 6587 sigprocmask(arg1, &set, &oldset); 6588 host_to_target_old_sigset(&mask, &oldset); 6589 ret = mask; 6590 } 6591 break; 6592 #endif 6593 6594 #ifdef TARGET_NR_getgid32 6595 case TARGET_NR_getgid32: 6596 ret = get_errno(getgid()); 6597 break; 6598 #endif 6599 #ifdef TARGET_NR_geteuid32 6600 case TARGET_NR_geteuid32: 6601 ret = get_errno(geteuid()); 6602 break; 6603 #endif 6604 #ifdef TARGET_NR_getegid32 6605 case TARGET_NR_getegid32: 6606 ret = get_errno(getegid()); 6607 break; 6608 #endif 6609 #ifdef TARGET_NR_setreuid32 6610 case TARGET_NR_setreuid32: 6611 ret = get_errno(setreuid(arg1, arg2)); 6612 break; 6613 #endif 6614 #ifdef TARGET_NR_setregid32 6615 case TARGET_NR_setregid32: 6616 ret = get_errno(setregid(arg1, arg2)); 6617 break; 6618 #endif 6619 #ifdef TARGET_NR_getgroups32 6620 case TARGET_NR_getgroups32: 6621 { 6622 int gidsetsize = arg1; 6623 uint32_t *target_grouplist; 6624 gid_t *grouplist; 6625 int i; 6626 6627 grouplist = alloca(gidsetsize * sizeof(gid_t)); 6628 ret = get_errno(getgroups(gidsetsize, grouplist)); 6629 if (gidsetsize == 0) 6630 break; 6631 if (!is_error(ret)) { 6632 target_grouplist = lock_user(VERIFY_WRITE, arg2, gidsetsize * 4, 0); 6633 if (!target_grouplist) { 6634 ret = -TARGET_EFAULT; 6635 goto fail; 6636 } 6637 for(i = 0;i < ret; i++) 6638 target_grouplist[i] = tswap32(grouplist[i]); 6639 unlock_user(target_grouplist, arg2, gidsetsize * 4); 6640 } 6641 } 6642 break; 6643 #endif 6644 #ifdef TARGET_NR_setgroups32 6645 case TARGET_NR_setgroups32: 6646 { 6647 int gidsetsize = arg1; 6648 uint32_t *target_grouplist; 6649 gid_t *grouplist; 6650 int i; 6651 6652 grouplist = alloca(gidsetsize * sizeof(gid_t)); 6653 target_grouplist = lock_user(VERIFY_READ, arg2, gidsetsize * 4, 1); 6654 if (!target_grouplist) { 6655 ret = -TARGET_EFAULT; 6656 goto fail; 6657 } 6658 for(i = 0;i < gidsetsize; i++) 6659 grouplist[i] = tswap32(target_grouplist[i]); 6660 unlock_user(target_grouplist, arg2, 0); 6661 ret = get_errno(setgroups(gidsetsize, grouplist)); 6662 } 6663 break; 6664 #endif 6665 #ifdef TARGET_NR_fchown32 6666 case TARGET_NR_fchown32: 6667 ret = get_errno(fchown(arg1, arg2, arg3)); 6668 break; 6669 #endif 6670 #ifdef TARGET_NR_setresuid32 6671 case TARGET_NR_setresuid32: 6672 ret = get_errno(setresuid(arg1, arg2, arg3)); 6673 break; 6674 #endif 6675 #ifdef TARGET_NR_getresuid32 6676 case TARGET_NR_getresuid32: 6677 { 6678 uid_t ruid, euid, suid; 6679 ret = get_errno(getresuid(&ruid, &euid, &suid)); 6680 if (!is_error(ret)) { 6681 if (put_user_u32(ruid, arg1) 6682 || put_user_u32(euid, arg2) 6683 || put_user_u32(suid, arg3)) 6684 goto efault; 6685 } 6686 } 6687 break; 6688 #endif 6689 #ifdef TARGET_NR_setresgid32 6690 case TARGET_NR_setresgid32: 6691 ret = get_errno(setresgid(arg1, arg2, arg3)); 6692 break; 6693 #endif 6694 #ifdef TARGET_NR_getresgid32 6695 case TARGET_NR_getresgid32: 6696 { 6697 gid_t rgid, egid, sgid; 6698 ret = get_errno(getresgid(&rgid, &egid, &sgid)); 6699 if (!is_error(ret)) { 6700 if (put_user_u32(rgid, arg1) 6701 || put_user_u32(egid, arg2) 6702 || put_user_u32(sgid, arg3)) 6703 goto efault; 6704 } 6705 } 6706 break; 6707 #endif 6708 #ifdef TARGET_NR_chown32 6709 case TARGET_NR_chown32: 6710 if (!(p = lock_user_string(arg1))) 6711 goto efault; 6712 ret = get_errno(chown(p, arg2, arg3)); 6713 unlock_user(p, arg1, 0); 6714 break; 6715 #endif 6716 #ifdef TARGET_NR_setuid32 6717 case TARGET_NR_setuid32: 6718 ret = get_errno(setuid(arg1)); 6719 break; 6720 #endif 6721 #ifdef TARGET_NR_setgid32 6722 case TARGET_NR_setgid32: 6723 ret = get_errno(setgid(arg1)); 6724 break; 6725 #endif 6726 #ifdef TARGET_NR_setfsuid32 6727 case TARGET_NR_setfsuid32: 6728 ret = get_errno(setfsuid(arg1)); 6729 break; 6730 #endif 6731 #ifdef TARGET_NR_setfsgid32 6732 case TARGET_NR_setfsgid32: 6733 ret = get_errno(setfsgid(arg1)); 6734 break; 6735 #endif 6736 6737 case TARGET_NR_pivot_root: 6738 goto unimplemented; 6739 #ifdef TARGET_NR_mincore 6740 case TARGET_NR_mincore: 6741 { 6742 void *a; 6743 ret = -TARGET_EFAULT; 6744 if (!(a = lock_user(VERIFY_READ, arg1,arg2, 0))) 6745 goto efault; 6746 if (!(p = lock_user_string(arg3))) 6747 goto mincore_fail; 6748 ret = get_errno(mincore(a, arg2, p)); 6749 unlock_user(p, arg3, ret); 6750 mincore_fail: 6751 unlock_user(a, arg1, 0); 6752 } 6753 break; 6754 #endif 6755 #ifdef TARGET_NR_arm_fadvise64_64 6756 case TARGET_NR_arm_fadvise64_64: 6757 { 6758 /* 6759 * arm_fadvise64_64 looks like fadvise64_64 but 6760 * with different argument order 6761 */ 6762 abi_long temp; 6763 temp = arg3; 6764 arg3 = arg4; 6765 arg4 = temp; 6766 } 6767 #endif 6768 #if defined(TARGET_NR_fadvise64_64) || defined(TARGET_NR_arm_fadvise64_64) || defined(TARGET_NR_fadvise64) 6769 #ifdef TARGET_NR_fadvise64_64 6770 case TARGET_NR_fadvise64_64: 6771 #endif 6772 #ifdef TARGET_NR_fadvise64 6773 case TARGET_NR_fadvise64: 6774 #endif 6775 #ifdef TARGET_S390X 6776 switch (arg4) { 6777 case 4: arg4 = POSIX_FADV_NOREUSE + 1; break; /* make sure it's an invalid value */ 6778 case 5: arg4 = POSIX_FADV_NOREUSE + 2; break; /* ditto */ 6779 case 6: arg4 = POSIX_FADV_DONTNEED; break; 6780 case 7: arg4 = POSIX_FADV_NOREUSE; break; 6781 default: break; 6782 } 6783 #endif 6784 ret = -posix_fadvise(arg1, arg2, arg3, arg4); 6785 break; 6786 #endif 6787 #ifdef TARGET_NR_madvise 6788 case TARGET_NR_madvise: 6789 /* A straight passthrough may not be safe because qemu sometimes 6790 turns private flie-backed mappings into anonymous mappings. 6791 This will break MADV_DONTNEED. 6792 This is a hint, so ignoring and returning success is ok. */ 6793 ret = get_errno(0); 6794 break; 6795 #endif 6796 #if TARGET_ABI_BITS == 32 6797 case TARGET_NR_fcntl64: 6798 { 6799 int cmd; 6800 struct flock64 fl; 6801 struct target_flock64 *target_fl; 6802 #ifdef TARGET_ARM 6803 struct target_eabi_flock64 *target_efl; 6804 #endif 6805 6806 cmd = target_to_host_fcntl_cmd(arg2); 6807 if (cmd == -TARGET_EINVAL) 6808 return cmd; 6809 6810 switch(arg2) { 6811 case TARGET_F_GETLK64: 6812 #ifdef TARGET_ARM 6813 if (((CPUARMState *)cpu_env)->eabi) { 6814 if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1)) 6815 goto efault; 6816 fl.l_type = tswap16(target_efl->l_type); 6817 fl.l_whence = tswap16(target_efl->l_whence); 6818 fl.l_start = tswap64(target_efl->l_start); 6819 fl.l_len = tswap64(target_efl->l_len); 6820 fl.l_pid = tswap32(target_efl->l_pid); 6821 unlock_user_struct(target_efl, arg3, 0); 6822 } else 6823 #endif 6824 { 6825 if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1)) 6826 goto efault; 6827 fl.l_type = tswap16(target_fl->l_type); 6828 fl.l_whence = tswap16(target_fl->l_whence); 6829 fl.l_start = tswap64(target_fl->l_start); 6830 fl.l_len = tswap64(target_fl->l_len); 6831 fl.l_pid = tswap32(target_fl->l_pid); 6832 unlock_user_struct(target_fl, arg3, 0); 6833 } 6834 ret = get_errno(fcntl(arg1, cmd, &fl)); 6835 if (ret == 0) { 6836 #ifdef TARGET_ARM 6837 if (((CPUARMState *)cpu_env)->eabi) { 6838 if (!lock_user_struct(VERIFY_WRITE, target_efl, arg3, 0)) 6839 goto efault; 6840 target_efl->l_type = tswap16(fl.l_type); 6841 target_efl->l_whence = tswap16(fl.l_whence); 6842 target_efl->l_start = tswap64(fl.l_start); 6843 target_efl->l_len = tswap64(fl.l_len); 6844 target_efl->l_pid = tswap32(fl.l_pid); 6845 unlock_user_struct(target_efl, arg3, 1); 6846 } else 6847 #endif 6848 { 6849 if (!lock_user_struct(VERIFY_WRITE, target_fl, arg3, 0)) 6850 goto efault; 6851 target_fl->l_type = tswap16(fl.l_type); 6852 target_fl->l_whence = tswap16(fl.l_whence); 6853 target_fl->l_start = tswap64(fl.l_start); 6854 target_fl->l_len = tswap64(fl.l_len); 6855 target_fl->l_pid = tswap32(fl.l_pid); 6856 unlock_user_struct(target_fl, arg3, 1); 6857 } 6858 } 6859 break; 6860 6861 case TARGET_F_SETLK64: 6862 case TARGET_F_SETLKW64: 6863 #ifdef TARGET_ARM 6864 if (((CPUARMState *)cpu_env)->eabi) { 6865 if (!lock_user_struct(VERIFY_READ, target_efl, arg3, 1)) 6866 goto efault; 6867 fl.l_type = tswap16(target_efl->l_type); 6868 fl.l_whence = tswap16(target_efl->l_whence); 6869 fl.l_start = tswap64(target_efl->l_start); 6870 fl.l_len = tswap64(target_efl->l_len); 6871 fl.l_pid = tswap32(target_efl->l_pid); 6872 unlock_user_struct(target_efl, arg3, 0); 6873 } else 6874 #endif 6875 { 6876 if (!lock_user_struct(VERIFY_READ, target_fl, arg3, 1)) 6877 goto efault; 6878 fl.l_type = tswap16(target_fl->l_type); 6879 fl.l_whence = tswap16(target_fl->l_whence); 6880 fl.l_start = tswap64(target_fl->l_start); 6881 fl.l_len = tswap64(target_fl->l_len); 6882 fl.l_pid = tswap32(target_fl->l_pid); 6883 unlock_user_struct(target_fl, arg3, 0); 6884 } 6885 ret = get_errno(fcntl(arg1, cmd, &fl)); 6886 break; 6887 default: 6888 ret = do_fcntl(arg1, arg2, arg3); 6889 break; 6890 } 6891 break; 6892 } 6893 #endif 6894 #ifdef TARGET_NR_cacheflush 6895 case TARGET_NR_cacheflush: 6896 /* self-modifying code is handled automatically, so nothing needed */ 6897 ret = 0; 6898 break; 6899 #endif 6900 #ifdef TARGET_NR_security 6901 case TARGET_NR_security: 6902 goto unimplemented; 6903 #endif 6904 #ifdef TARGET_NR_getpagesize 6905 case TARGET_NR_getpagesize: 6906 ret = TARGET_PAGE_SIZE; 6907 break; 6908 #endif 6909 case TARGET_NR_gettid: 6910 ret = get_errno(gettid()); 6911 break; 6912 #ifdef TARGET_NR_readahead 6913 case TARGET_NR_readahead: 6914 #if TARGET_ABI_BITS == 32 6915 #ifdef TARGET_ARM 6916 if (((CPUARMState *)cpu_env)->eabi) 6917 { 6918 arg2 = arg3; 6919 arg3 = arg4; 6920 arg4 = arg5; 6921 } 6922 #endif 6923 ret = get_errno(readahead(arg1, ((off64_t)arg3 << 32) | arg2, arg4)); 6924 #else 6925 ret = get_errno(readahead(arg1, arg2, arg3)); 6926 #endif 6927 break; 6928 #endif 6929 #ifdef TARGET_NR_setxattr 6930 case TARGET_NR_setxattr: 6931 case TARGET_NR_lsetxattr: 6932 case TARGET_NR_fsetxattr: 6933 case TARGET_NR_getxattr: 6934 case TARGET_NR_lgetxattr: 6935 case TARGET_NR_fgetxattr: 6936 case TARGET_NR_listxattr: 6937 case TARGET_NR_llistxattr: 6938 case TARGET_NR_flistxattr: 6939 case TARGET_NR_removexattr: 6940 case TARGET_NR_lremovexattr: 6941 case TARGET_NR_fremovexattr: 6942 ret = -TARGET_EOPNOTSUPP; 6943 break; 6944 #endif 6945 #ifdef TARGET_NR_set_thread_area 6946 case TARGET_NR_set_thread_area: 6947 #if defined(TARGET_MIPS) 6948 ((CPUMIPSState *) cpu_env)->tls_value = arg1; 6949 ret = 0; 6950 break; 6951 #elif defined(TARGET_CRIS) 6952 if (arg1 & 0xff) 6953 ret = -TARGET_EINVAL; 6954 else { 6955 ((CPUCRISState *) cpu_env)->pregs[PR_PID] = arg1; 6956 ret = 0; 6957 } 6958 break; 6959 #elif defined(TARGET_I386) && defined(TARGET_ABI32) 6960 ret = do_set_thread_area(cpu_env, arg1); 6961 break; 6962 #else 6963 goto unimplemented_nowarn; 6964 #endif 6965 #endif 6966 #ifdef TARGET_NR_get_thread_area 6967 case TARGET_NR_get_thread_area: 6968 #if defined(TARGET_I386) && defined(TARGET_ABI32) 6969 ret = do_get_thread_area(cpu_env, arg1); 6970 #else 6971 goto unimplemented_nowarn; 6972 #endif 6973 #endif 6974 #ifdef TARGET_NR_getdomainname 6975 case TARGET_NR_getdomainname: 6976 goto unimplemented_nowarn; 6977 #endif 6978 6979 #ifdef TARGET_NR_clock_gettime 6980 case TARGET_NR_clock_gettime: 6981 { 6982 struct timespec ts; 6983 ret = get_errno(clock_gettime(arg1, &ts)); 6984 if (!is_error(ret)) { 6985 host_to_target_timespec(arg2, &ts); 6986 } 6987 break; 6988 } 6989 #endif 6990 #ifdef TARGET_NR_clock_getres 6991 case TARGET_NR_clock_getres: 6992 { 6993 struct timespec ts; 6994 ret = get_errno(clock_getres(arg1, &ts)); 6995 if (!is_error(ret)) { 6996 host_to_target_timespec(arg2, &ts); 6997 } 6998 break; 6999 } 7000 #endif 7001 #ifdef TARGET_NR_clock_nanosleep 7002 case TARGET_NR_clock_nanosleep: 7003 { 7004 struct timespec ts; 7005 target_to_host_timespec(&ts, arg3); 7006 ret = get_errno(clock_nanosleep(arg1, arg2, &ts, arg4 ? &ts : NULL)); 7007 if (arg4) 7008 host_to_target_timespec(arg4, &ts); 7009 break; 7010 } 7011 #endif 7012 7013 #if defined(TARGET_NR_set_tid_address) && defined(__NR_set_tid_address) 7014 case TARGET_NR_set_tid_address: 7015 ret = get_errno(set_tid_address((int *)g2h(arg1))); 7016 break; 7017 #endif 7018 7019 #if defined(TARGET_NR_tkill) && defined(__NR_tkill) 7020 case TARGET_NR_tkill: 7021 ret = get_errno(sys_tkill((int)arg1, target_to_host_signal(arg2))); 7022 break; 7023 #endif 7024 7025 #if defined(TARGET_NR_tgkill) && defined(__NR_tgkill) 7026 case TARGET_NR_tgkill: 7027 ret = get_errno(sys_tgkill((int)arg1, (int)arg2, 7028 target_to_host_signal(arg3))); 7029 break; 7030 #endif 7031 7032 #ifdef TARGET_NR_set_robust_list 7033 case TARGET_NR_set_robust_list: 7034 goto unimplemented_nowarn; 7035 #endif 7036 7037 #if defined(TARGET_NR_utimensat) && defined(__NR_utimensat) 7038 case TARGET_NR_utimensat: 7039 { 7040 struct timespec *tsp, ts[2]; 7041 if (!arg3) { 7042 tsp = NULL; 7043 } else { 7044 target_to_host_timespec(ts, arg3); 7045 target_to_host_timespec(ts+1, arg3+sizeof(struct target_timespec)); 7046 tsp = ts; 7047 } 7048 if (!arg2) 7049 ret = get_errno(sys_utimensat(arg1, NULL, tsp, arg4)); 7050 else { 7051 if (!(p = lock_user_string(arg2))) { 7052 ret = -TARGET_EFAULT; 7053 goto fail; 7054 } 7055 ret = get_errno(sys_utimensat(arg1, path(p), tsp, arg4)); 7056 unlock_user(p, arg2, 0); 7057 } 7058 } 7059 break; 7060 #endif 7061 #if defined(CONFIG_USE_NPTL) 7062 case TARGET_NR_futex: 7063 ret = do_futex(arg1, arg2, arg3, arg4, arg5, arg6); 7064 break; 7065 #endif 7066 #if defined(TARGET_NR_inotify_init) && defined(__NR_inotify_init) 7067 case TARGET_NR_inotify_init: 7068 ret = get_errno(sys_inotify_init()); 7069 break; 7070 #endif 7071 #if defined(TARGET_NR_inotify_init1) && defined(__NR_inotify_init1) 7072 case TARGET_NR_inotify_init1: 7073 ret = get_errno(sys_inotify_init1(arg1)); 7074 break; 7075 #endif 7076 #if defined(TARGET_NR_inotify_add_watch) && defined(__NR_inotify_add_watch) 7077 case TARGET_NR_inotify_add_watch: 7078 p = lock_user_string(arg2); 7079 ret = get_errno(sys_inotify_add_watch(arg1, path(p), arg3)); 7080 unlock_user(p, arg2, 0); 7081 break; 7082 #endif 7083 #if defined(TARGET_NR_inotify_rm_watch) && defined(__NR_inotify_rm_watch) 7084 case TARGET_NR_inotify_rm_watch: 7085 ret = get_errno(sys_inotify_rm_watch(arg1, arg2)); 7086 break; 7087 #endif 7088 7089 #if defined(TARGET_NR_mq_open) && defined(__NR_mq_open) 7090 case TARGET_NR_mq_open: 7091 { 7092 struct mq_attr posix_mq_attr; 7093 7094 p = lock_user_string(arg1 - 1); 7095 if (arg4 != 0) 7096 copy_from_user_mq_attr (&posix_mq_attr, arg4); 7097 ret = get_errno(mq_open(p, arg2, arg3, &posix_mq_attr)); 7098 unlock_user (p, arg1, 0); 7099 } 7100 break; 7101 7102 case TARGET_NR_mq_unlink: 7103 p = lock_user_string(arg1 - 1); 7104 ret = get_errno(mq_unlink(p)); 7105 unlock_user (p, arg1, 0); 7106 break; 7107 7108 case TARGET_NR_mq_timedsend: 7109 { 7110 struct timespec ts; 7111 7112 p = lock_user (VERIFY_READ, arg2, arg3, 1); 7113 if (arg5 != 0) { 7114 target_to_host_timespec(&ts, arg5); 7115 ret = get_errno(mq_timedsend(arg1, p, arg3, arg4, &ts)); 7116 host_to_target_timespec(arg5, &ts); 7117 } 7118 else 7119 ret = get_errno(mq_send(arg1, p, arg3, arg4)); 7120 unlock_user (p, arg2, arg3); 7121 } 7122 break; 7123 7124 case TARGET_NR_mq_timedreceive: 7125 { 7126 struct timespec ts; 7127 unsigned int prio; 7128 7129 p = lock_user (VERIFY_READ, arg2, arg3, 1); 7130 if (arg5 != 0) { 7131 target_to_host_timespec(&ts, arg5); 7132 ret = get_errno(mq_timedreceive(arg1, p, arg3, &prio, &ts)); 7133 host_to_target_timespec(arg5, &ts); 7134 } 7135 else 7136 ret = get_errno(mq_receive(arg1, p, arg3, &prio)); 7137 unlock_user (p, arg2, arg3); 7138 if (arg4 != 0) 7139 put_user_u32(prio, arg4); 7140 } 7141 break; 7142 7143 /* Not implemented for now... */ 7144 /* case TARGET_NR_mq_notify: */ 7145 /* break; */ 7146 7147 case TARGET_NR_mq_getsetattr: 7148 { 7149 struct mq_attr posix_mq_attr_in, posix_mq_attr_out; 7150 ret = 0; 7151 if (arg3 != 0) { 7152 ret = mq_getattr(arg1, &posix_mq_attr_out); 7153 copy_to_user_mq_attr(arg3, &posix_mq_attr_out); 7154 } 7155 if (arg2 != 0) { 7156 copy_from_user_mq_attr(&posix_mq_attr_in, arg2); 7157 ret |= mq_setattr(arg1, &posix_mq_attr_in, &posix_mq_attr_out); 7158 } 7159 7160 } 7161 break; 7162 #endif 7163 7164 #ifdef CONFIG_SPLICE 7165 #ifdef TARGET_NR_tee 7166 case TARGET_NR_tee: 7167 { 7168 ret = get_errno(tee(arg1,arg2,arg3,arg4)); 7169 } 7170 break; 7171 #endif 7172 #ifdef TARGET_NR_splice 7173 case TARGET_NR_splice: 7174 { 7175 loff_t loff_in, loff_out; 7176 loff_t *ploff_in = NULL, *ploff_out = NULL; 7177 if(arg2) { 7178 get_user_u64(loff_in, arg2); 7179 ploff_in = &loff_in; 7180 } 7181 if(arg4) { 7182 get_user_u64(loff_out, arg2); 7183 ploff_out = &loff_out; 7184 } 7185 ret = get_errno(splice(arg1, ploff_in, arg3, ploff_out, arg5, arg6)); 7186 } 7187 break; 7188 #endif 7189 #ifdef TARGET_NR_vmsplice 7190 case TARGET_NR_vmsplice: 7191 { 7192 int count = arg3; 7193 struct iovec *vec; 7194 7195 vec = alloca(count * sizeof(struct iovec)); 7196 if (lock_iovec(VERIFY_READ, vec, arg2, count, 1) < 0) 7197 goto efault; 7198 ret = get_errno(vmsplice(arg1, vec, count, arg4)); 7199 unlock_iovec(vec, arg2, count, 0); 7200 } 7201 break; 7202 #endif 7203 #endif /* CONFIG_SPLICE */ 7204 #ifdef CONFIG_EVENTFD 7205 #if defined(TARGET_NR_eventfd) 7206 case TARGET_NR_eventfd: 7207 ret = get_errno(eventfd(arg1, 0)); 7208 break; 7209 #endif 7210 #if defined(TARGET_NR_eventfd2) 7211 case TARGET_NR_eventfd2: 7212 ret = get_errno(eventfd(arg1, arg2)); 7213 break; 7214 #endif 7215 #endif /* CONFIG_EVENTFD */ 7216 #if defined(CONFIG_FALLOCATE) && defined(TARGET_NR_fallocate) 7217 case TARGET_NR_fallocate: 7218 ret = get_errno(fallocate(arg1, arg2, arg3, arg4)); 7219 break; 7220 #endif 7221 default: 7222 unimplemented: 7223 gemu_log("qemu: Unsupported syscall: %d\n", num); 7224 #if defined(TARGET_NR_setxattr) || defined(TARGET_NR_get_thread_area) || defined(TARGET_NR_getdomainname) || defined(TARGET_NR_set_robust_list) 7225 unimplemented_nowarn: 7226 #endif 7227 ret = -TARGET_ENOSYS; 7228 break; 7229 } 7230 fail: 7231 #ifdef DEBUG 7232 gemu_log(" = " TARGET_ABI_FMT_ld "\n", ret); 7233 #endif 7234 if(do_strace) 7235 print_syscall_ret(num, ret); 7236 return ret; 7237 efault: 7238 ret = -TARGET_EFAULT; 7239 goto fail; 7240 } 7241