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c1b0b93b JS |
1 | /* |
2 | * os-win32.c | |
3 | * | |
4 | * Copyright (c) 2003-2008 Fabrice Bellard | |
c6196440 | 5 | * Copyright (c) 2010-2016 Red Hat, Inc. |
c1b0b93b JS |
6 | * |
7 | * QEMU library functions for win32 which are shared between QEMU and | |
8 | * the QEMU tools. | |
9 | * | |
10 | * Permission is hereby granted, free of charge, to any person obtaining a copy | |
11 | * of this software and associated documentation files (the "Software"), to deal | |
12 | * in the Software without restriction, including without limitation the rights | |
13 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
14 | * copies of the Software, and to permit persons to whom the Software is | |
15 | * furnished to do so, subject to the following conditions: | |
16 | * | |
17 | * The above copyright notice and this permission notice shall be included in | |
18 | * all copies or substantial portions of the Software. | |
19 | * | |
20 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
21 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
22 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
23 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
24 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
25 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
26 | * THE SOFTWARE. | |
27 | */ | |
a8d25326 | 28 | |
aafd7584 | 29 | #include "qemu/osdep.h" |
c1b0b93b | 30 | #include <windows.h> |
da34e65c | 31 | #include "qapi/error.h" |
1de7afc9 | 32 | #include "qemu/main-loop.h" |
c1b0b93b | 33 | #include "trace.h" |
1de7afc9 | 34 | #include "qemu/sockets.h" |
f348b6d1 | 35 | #include "qemu/cutils.h" |
8dbe22c6 | 36 | #include "qemu/error-report.h" |
dfbd0b87 | 37 | #include <malloc.h> |
c1b0b93b | 38 | |
714efd54 DH |
39 | static int get_allocation_granularity(void) |
40 | { | |
41 | SYSTEM_INFO system_info; | |
42 | ||
43 | GetSystemInfo(&system_info); | |
44 | return system_info.dwAllocationGranularity; | |
45 | } | |
46 | ||
8dbe22c6 DH |
47 | void *qemu_anon_ram_alloc(size_t size, uint64_t *align, bool shared, |
48 | bool noreserve) | |
c1b0b93b JS |
49 | { |
50 | void *ptr; | |
51 | ||
8dbe22c6 DH |
52 | if (noreserve) { |
53 | /* | |
54 | * We need a MEM_COMMIT before accessing any memory in a MEM_RESERVE | |
55 | * area; we cannot easily mimic POSIX MAP_NORESERVE semantics. | |
56 | */ | |
57 | error_report("Skipping reservation of swap space is not supported."); | |
58 | return NULL; | |
59 | } | |
60 | ||
39228250 | 61 | ptr = VirtualAlloc(NULL, size, MEM_COMMIT, PAGE_READWRITE); |
6eebf958 | 62 | trace_qemu_anon_ram_alloc(size, ptr); |
714efd54 DH |
63 | |
64 | if (ptr && align) { | |
65 | *align = MAX(get_allocation_granularity(), getpagesize()); | |
66 | } | |
c1b0b93b JS |
67 | return ptr; |
68 | } | |
69 | ||
e7a09b92 PB |
70 | void qemu_anon_ram_free(void *ptr, size_t size) |
71 | { | |
72 | trace_qemu_anon_ram_free(ptr, size); | |
73 | if (ptr) { | |
74 | VirtualFree(ptr, 0, MEM_RELEASE); | |
75 | } | |
76 | } | |
77 | ||
7c3afc85 | 78 | #ifndef _POSIX_THREAD_SAFE_FUNCTIONS |
d3e8f957 SW |
79 | /* FIXME: add proper locking */ |
80 | struct tm *gmtime_r(const time_t *timep, struct tm *result) | |
81 | { | |
82 | struct tm *p = gmtime(timep); | |
83 | memset(result, 0, sizeof(*result)); | |
84 | if (p) { | |
85 | *result = *p; | |
86 | p = result; | |
87 | } | |
88 | return p; | |
89 | } | |
90 | ||
91 | /* FIXME: add proper locking */ | |
92 | struct tm *localtime_r(const time_t *timep, struct tm *result) | |
93 | { | |
94 | struct tm *p = localtime(timep); | |
95 | memset(result, 0, sizeof(*result)); | |
96 | if (p) { | |
97 | *result = *p; | |
98 | p = result; | |
99 | } | |
100 | return p; | |
101 | } | |
7c3afc85 | 102 | #endif /* _POSIX_THREAD_SAFE_FUNCTIONS */ |
d3e8f957 | 103 | |
b16a44e1 | 104 | static int socket_error(void) |
c6196440 DB |
105 | { |
106 | switch (WSAGetLastError()) { | |
107 | case 0: | |
108 | return 0; | |
109 | case WSAEINTR: | |
110 | return EINTR; | |
111 | case WSAEINVAL: | |
112 | return EINVAL; | |
113 | case WSA_INVALID_HANDLE: | |
114 | return EBADF; | |
115 | case WSA_NOT_ENOUGH_MEMORY: | |
116 | return ENOMEM; | |
117 | case WSA_INVALID_PARAMETER: | |
118 | return EINVAL; | |
119 | case WSAENAMETOOLONG: | |
120 | return ENAMETOOLONG; | |
121 | case WSAENOTEMPTY: | |
122 | return ENOTEMPTY; | |
123 | case WSAEWOULDBLOCK: | |
124 | /* not using EWOULDBLOCK as we don't want code to have | |
125 | * to check both EWOULDBLOCK and EAGAIN */ | |
126 | return EAGAIN; | |
127 | case WSAEINPROGRESS: | |
128 | return EINPROGRESS; | |
129 | case WSAEALREADY: | |
130 | return EALREADY; | |
131 | case WSAENOTSOCK: | |
132 | return ENOTSOCK; | |
133 | case WSAEDESTADDRREQ: | |
134 | return EDESTADDRREQ; | |
135 | case WSAEMSGSIZE: | |
136 | return EMSGSIZE; | |
137 | case WSAEPROTOTYPE: | |
138 | return EPROTOTYPE; | |
139 | case WSAENOPROTOOPT: | |
140 | return ENOPROTOOPT; | |
141 | case WSAEPROTONOSUPPORT: | |
142 | return EPROTONOSUPPORT; | |
143 | case WSAEOPNOTSUPP: | |
144 | return EOPNOTSUPP; | |
145 | case WSAEAFNOSUPPORT: | |
146 | return EAFNOSUPPORT; | |
147 | case WSAEADDRINUSE: | |
148 | return EADDRINUSE; | |
149 | case WSAEADDRNOTAVAIL: | |
150 | return EADDRNOTAVAIL; | |
151 | case WSAENETDOWN: | |
152 | return ENETDOWN; | |
153 | case WSAENETUNREACH: | |
154 | return ENETUNREACH; | |
155 | case WSAENETRESET: | |
156 | return ENETRESET; | |
157 | case WSAECONNABORTED: | |
158 | return ECONNABORTED; | |
159 | case WSAECONNRESET: | |
160 | return ECONNRESET; | |
161 | case WSAENOBUFS: | |
162 | return ENOBUFS; | |
163 | case WSAEISCONN: | |
164 | return EISCONN; | |
165 | case WSAENOTCONN: | |
166 | return ENOTCONN; | |
167 | case WSAETIMEDOUT: | |
168 | return ETIMEDOUT; | |
169 | case WSAECONNREFUSED: | |
170 | return ECONNREFUSED; | |
171 | case WSAELOOP: | |
172 | return ELOOP; | |
173 | case WSAEHOSTUNREACH: | |
174 | return EHOSTUNREACH; | |
175 | default: | |
176 | return EIO; | |
177 | } | |
178 | } | |
179 | ||
ff5927ba | 180 | void qemu_socket_set_block(int fd) |
894022e6 LV |
181 | { |
182 | unsigned long opt = 0; | |
183 | WSAEventSelect(fd, NULL, 0); | |
184 | ioctlsocket(fd, FIONBIO, &opt); | |
185 | } | |
186 | ||
ff5927ba | 187 | int qemu_socket_try_set_nonblock(int fd) |
894022e6 LV |
188 | { |
189 | unsigned long opt = 1; | |
190 | if (ioctlsocket(fd, FIONBIO, &opt) != NO_ERROR) { | |
191 | return -socket_error(); | |
192 | } | |
894022e6 LV |
193 | return 0; |
194 | } | |
195 | ||
ff5927ba | 196 | void qemu_socket_set_nonblock(int fd) |
894022e6 | 197 | { |
ff5927ba | 198 | (void)qemu_socket_try_set_nonblock(fd); |
894022e6 LV |
199 | } |
200 | ||
201 | int socket_set_fast_reuse(int fd) | |
202 | { | |
203 | /* Enabling the reuse of an endpoint that was used by a socket still in | |
204 | * TIME_WAIT state is usually performed by setting SO_REUSEADDR. On Windows | |
205 | * fast reuse is the default and SO_REUSEADDR does strange things. So we | |
206 | * don't have to do anything here. More info can be found at: | |
207 | * http://msdn.microsoft.com/en-us/library/windows/desktop/ms740621.aspx */ | |
208 | return 0; | |
209 | } | |
210 | ||
9549e764 JS |
211 | int inet_aton(const char *cp, struct in_addr *ia) |
212 | { | |
213 | uint32_t addr = inet_addr(cp); | |
214 | if (addr == 0xffffffff) { | |
e637aa66 | 215 | return 0; |
9549e764 JS |
216 | } |
217 | ia->s_addr = addr; | |
218 | return 1; | |
219 | } | |
220 | ||
221 | void qemu_set_cloexec(int fd) | |
222 | { | |
223 | } | |
dc786bc9 | 224 | |
cbcfa041 PB |
225 | int qemu_get_thread_id(void) |
226 | { | |
227 | return GetCurrentThreadId(); | |
228 | } | |
e2ea3515 LE |
229 | |
230 | char * | |
1fbf2665 | 231 | qemu_get_local_state_dir(void) |
e2ea3515 | 232 | { |
49e0128c | 233 | const char * const *data_dirs = g_get_system_data_dirs(); |
e2ea3515 | 234 | |
49e0128c MAL |
235 | g_assert(data_dirs && data_dirs[0]); |
236 | ||
237 | return g_strdup(data_dirs[0]); | |
e2ea3515 | 238 | } |
13401ba0 SH |
239 | |
240 | void qemu_set_tty_echo(int fd, bool echo) | |
241 | { | |
242 | HANDLE handle = (HANDLE)_get_osfhandle(fd); | |
243 | DWORD dwMode = 0; | |
244 | ||
245 | if (handle == INVALID_HANDLE_VALUE) { | |
246 | return; | |
247 | } | |
248 | ||
249 | GetConsoleMode(handle, &dwMode); | |
250 | ||
251 | if (echo) { | |
252 | SetConsoleMode(handle, dwMode | ENABLE_ECHO_INPUT | ENABLE_LINE_INPUT); | |
253 | } else { | |
254 | SetConsoleMode(handle, | |
255 | dwMode & ~(ENABLE_ECHO_INPUT | ENABLE_LINE_INPUT)); | |
256 | } | |
257 | } | |
10f5bff6 | 258 | |
a28c2f2d | 259 | int getpagesize(void) |
38183310 PB |
260 | { |
261 | SYSTEM_INFO system_info; | |
262 | ||
263 | GetSystemInfo(&system_info); | |
264 | return system_info.dwPageSize; | |
265 | } | |
266 | ||
6556aadc | 267 | void qemu_prealloc_mem(int fd, char *area, size_t sz, int max_threads, |
e04a34e5 | 268 | ThreadContext *tc, Error **errp) |
38183310 PB |
269 | { |
270 | int i; | |
8e3b0cbb | 271 | size_t pagesize = qemu_real_host_page_size(); |
38183310 | 272 | |
6556aadc DH |
273 | sz = (sz + pagesize - 1) & -pagesize; |
274 | for (i = 0; i < sz / pagesize; i++) { | |
38183310 PB |
275 | memset(area + pagesize * i, 0, 1); |
276 | } | |
277 | } | |
d57e4e48 | 278 | |
7dc9ae43 MP |
279 | char *qemu_get_pid_name(pid_t pid) |
280 | { | |
281 | /* XXX Implement me */ | |
282 | abort(); | |
283 | } | |
284 | ||
285 | ||
57cb38b3 DB |
286 | pid_t qemu_fork(Error **errp) |
287 | { | |
288 | errno = ENOSYS; | |
289 | error_setg_errno(errp, errno, | |
290 | "cannot fork child process"); | |
291 | return -1; | |
292 | } | |
a2d96af4 DB |
293 | |
294 | ||
295 | #undef connect | |
296 | int qemu_connect_wrap(int sockfd, const struct sockaddr *addr, | |
297 | socklen_t addrlen) | |
298 | { | |
299 | int ret; | |
300 | ret = connect(sockfd, addr, addrlen); | |
301 | if (ret < 0) { | |
f1cd5d41 MAL |
302 | if (WSAGetLastError() == WSAEWOULDBLOCK) { |
303 | errno = EINPROGRESS; | |
304 | } else { | |
305 | errno = socket_error(); | |
306 | } | |
a2d96af4 DB |
307 | } |
308 | return ret; | |
309 | } | |
310 | ||
311 | ||
312 | #undef listen | |
313 | int qemu_listen_wrap(int sockfd, int backlog) | |
314 | { | |
315 | int ret; | |
316 | ret = listen(sockfd, backlog); | |
317 | if (ret < 0) { | |
318 | errno = socket_error(); | |
319 | } | |
320 | return ret; | |
321 | } | |
322 | ||
323 | ||
324 | #undef bind | |
325 | int qemu_bind_wrap(int sockfd, const struct sockaddr *addr, | |
326 | socklen_t addrlen) | |
327 | { | |
328 | int ret; | |
329 | ret = bind(sockfd, addr, addrlen); | |
330 | if (ret < 0) { | |
331 | errno = socket_error(); | |
332 | } | |
333 | return ret; | |
334 | } | |
335 | ||
336 | ||
337 | #undef socket | |
338 | int qemu_socket_wrap(int domain, int type, int protocol) | |
339 | { | |
340 | int ret; | |
341 | ret = socket(domain, type, protocol); | |
342 | if (ret < 0) { | |
343 | errno = socket_error(); | |
344 | } | |
345 | return ret; | |
346 | } | |
347 | ||
348 | ||
349 | #undef accept | |
350 | int qemu_accept_wrap(int sockfd, struct sockaddr *addr, | |
351 | socklen_t *addrlen) | |
352 | { | |
353 | int ret; | |
354 | ret = accept(sockfd, addr, addrlen); | |
355 | if (ret < 0) { | |
356 | errno = socket_error(); | |
357 | } | |
358 | return ret; | |
359 | } | |
360 | ||
361 | ||
362 | #undef shutdown | |
363 | int qemu_shutdown_wrap(int sockfd, int how) | |
364 | { | |
365 | int ret; | |
366 | ret = shutdown(sockfd, how); | |
367 | if (ret < 0) { | |
368 | errno = socket_error(); | |
369 | } | |
370 | return ret; | |
371 | } | |
372 | ||
373 | ||
374 | #undef ioctlsocket | |
375 | int qemu_ioctlsocket_wrap(int fd, int req, void *val) | |
376 | { | |
377 | int ret; | |
378 | ret = ioctlsocket(fd, req, val); | |
379 | if (ret < 0) { | |
380 | errno = socket_error(); | |
381 | } | |
382 | return ret; | |
383 | } | |
384 | ||
385 | ||
386 | #undef closesocket | |
387 | int qemu_closesocket_wrap(int fd) | |
388 | { | |
389 | int ret; | |
390 | ret = closesocket(fd); | |
391 | if (ret < 0) { | |
392 | errno = socket_error(); | |
393 | } | |
394 | return ret; | |
395 | } | |
396 | ||
397 | ||
398 | #undef getsockopt | |
399 | int qemu_getsockopt_wrap(int sockfd, int level, int optname, | |
400 | void *optval, socklen_t *optlen) | |
401 | { | |
402 | int ret; | |
403 | ret = getsockopt(sockfd, level, optname, optval, optlen); | |
404 | if (ret < 0) { | |
405 | errno = socket_error(); | |
406 | } | |
407 | return ret; | |
408 | } | |
409 | ||
410 | ||
411 | #undef setsockopt | |
412 | int qemu_setsockopt_wrap(int sockfd, int level, int optname, | |
413 | const void *optval, socklen_t optlen) | |
414 | { | |
415 | int ret; | |
416 | ret = setsockopt(sockfd, level, optname, optval, optlen); | |
417 | if (ret < 0) { | |
418 | errno = socket_error(); | |
419 | } | |
420 | return ret; | |
421 | } | |
422 | ||
423 | ||
424 | #undef getpeername | |
425 | int qemu_getpeername_wrap(int sockfd, struct sockaddr *addr, | |
426 | socklen_t *addrlen) | |
427 | { | |
428 | int ret; | |
429 | ret = getpeername(sockfd, addr, addrlen); | |
430 | if (ret < 0) { | |
431 | errno = socket_error(); | |
432 | } | |
433 | return ret; | |
434 | } | |
435 | ||
436 | ||
437 | #undef getsockname | |
438 | int qemu_getsockname_wrap(int sockfd, struct sockaddr *addr, | |
439 | socklen_t *addrlen) | |
440 | { | |
441 | int ret; | |
442 | ret = getsockname(sockfd, addr, addrlen); | |
443 | if (ret < 0) { | |
444 | errno = socket_error(); | |
445 | } | |
446 | return ret; | |
447 | } | |
448 | ||
449 | ||
450 | #undef send | |
451 | ssize_t qemu_send_wrap(int sockfd, const void *buf, size_t len, int flags) | |
452 | { | |
453 | int ret; | |
454 | ret = send(sockfd, buf, len, flags); | |
455 | if (ret < 0) { | |
456 | errno = socket_error(); | |
457 | } | |
458 | return ret; | |
459 | } | |
460 | ||
461 | ||
462 | #undef sendto | |
463 | ssize_t qemu_sendto_wrap(int sockfd, const void *buf, size_t len, int flags, | |
464 | const struct sockaddr *addr, socklen_t addrlen) | |
465 | { | |
466 | int ret; | |
467 | ret = sendto(sockfd, buf, len, flags, addr, addrlen); | |
468 | if (ret < 0) { | |
469 | errno = socket_error(); | |
470 | } | |
471 | return ret; | |
472 | } | |
473 | ||
474 | ||
475 | #undef recv | |
476 | ssize_t qemu_recv_wrap(int sockfd, void *buf, size_t len, int flags) | |
477 | { | |
478 | int ret; | |
479 | ret = recv(sockfd, buf, len, flags); | |
480 | if (ret < 0) { | |
481 | errno = socket_error(); | |
482 | } | |
483 | return ret; | |
484 | } | |
485 | ||
486 | ||
487 | #undef recvfrom | |
488 | ssize_t qemu_recvfrom_wrap(int sockfd, void *buf, size_t len, int flags, | |
489 | struct sockaddr *addr, socklen_t *addrlen) | |
490 | { | |
491 | int ret; | |
492 | ret = recvfrom(sockfd, buf, len, flags, addr, addrlen); | |
493 | if (ret < 0) { | |
494 | errno = socket_error(); | |
495 | } | |
496 | return ret; | |
497 | } | |
9e6bdef2 MAL |
498 | |
499 | bool qemu_write_pidfile(const char *filename, Error **errp) | |
500 | { | |
501 | char buffer[128]; | |
502 | int len; | |
503 | HANDLE file; | |
504 | OVERLAPPED overlap; | |
505 | BOOL ret; | |
506 | memset(&overlap, 0, sizeof(overlap)); | |
507 | ||
508 | file = CreateFile(filename, GENERIC_WRITE, FILE_SHARE_READ, NULL, | |
509 | OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, NULL); | |
510 | ||
511 | if (file == INVALID_HANDLE_VALUE) { | |
512 | error_setg(errp, "Failed to create PID file"); | |
513 | return false; | |
514 | } | |
515 | len = snprintf(buffer, sizeof(buffer), FMT_pid "\n", (pid_t)getpid()); | |
516 | ret = WriteFile(file, (LPCVOID)buffer, (DWORD)len, | |
517 | NULL, &overlap); | |
518 | CloseHandle(file); | |
519 | if (ret == 0) { | |
520 | error_setg(errp, "Failed to write PID file"); | |
521 | return false; | |
522 | } | |
523 | return true; | |
524 | } | |
e47f4765 | 525 | |
ad06ef0e AB |
526 | size_t qemu_get_host_physmem(void) |
527 | { | |
986babaa AB |
528 | MEMORYSTATUSEX statex; |
529 | statex.dwLength = sizeof(statex); | |
530 | ||
531 | if (GlobalMemoryStatusEx(&statex)) { | |
532 | return statex.ullTotalPhys; | |
533 | } | |
ad06ef0e AB |
534 | return 0; |
535 | } | |
73991a92 MAL |
536 | |
537 | int qemu_msync(void *addr, size_t length, int fd) | |
538 | { | |
539 | /** | |
540 | * Perform the sync based on the file descriptor | |
541 | * The sync range will most probably be wider than the one | |
542 | * requested - but it will still get the job done | |
543 | */ | |
544 | return qemu_fdatasync(fd); | |
545 | } |