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3719602c PC |
1 | /* Copyright (C) 2010-2022 The RetroArch team |
2 | * | |
3 | * --------------------------------------------------------------------------------------- | |
4 | * The following license statement only applies to this file (net_compat.c). | |
5 | * --------------------------------------------------------------------------------------- | |
6 | * | |
7 | * Permission is hereby granted, free of charge, | |
8 | * to any person obtaining a copy of this software and associated documentation files (the "Software"), | |
9 | * to deal in the Software without restriction, including without limitation the rights to | |
10 | * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, | |
11 | * and to permit persons to whom the Software is furnished to do so, subject to the following conditions: | |
12 | * | |
13 | * The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. | |
14 | * | |
15 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, | |
16 | * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
17 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. | |
18 | * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, | |
19 | * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
20 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | |
21 | */ | |
22 | ||
23 | #include <stdlib.h> | |
24 | #include <stdio.h> | |
25 | ||
26 | #include <compat/strl.h> | |
27 | #include <retro_miscellaneous.h> | |
28 | #include <retro_timers.h> | |
29 | ||
30 | #include <net/net_compat.h> | |
31 | ||
32 | #if defined(_WIN32) && !defined(_XBOX) | |
33 | #if !defined(_WIN32_WINNT) || _WIN32_WINNT < 0x0600 | |
34 | const char *inet_ntop(int af, const void *src, char *dst, socklen_t size) | |
35 | { | |
36 | struct sockaddr_storage addr; | |
37 | ||
38 | switch (af) | |
39 | { | |
40 | case AF_INET: | |
41 | memcpy(&((struct sockaddr_in*)&addr)->sin_addr, src, | |
42 | sizeof(struct in_addr)); | |
43 | break; | |
44 | #ifdef HAVE_INET6 | |
45 | case AF_INET6: | |
46 | memcpy(&((struct sockaddr_in6*)&addr)->sin6_addr, src, | |
47 | sizeof(struct in6_addr)); | |
48 | break; | |
49 | #endif | |
50 | default: | |
51 | return NULL; | |
52 | } | |
53 | ||
54 | addr.ss_family = af; | |
55 | if (getnameinfo((struct sockaddr*)&addr, sizeof(addr), dst, size, NULL, 0, | |
56 | NI_NUMERICHOST)) | |
57 | return NULL; | |
58 | ||
59 | return dst; | |
60 | } | |
61 | ||
62 | int inet_pton(int af, const char *src, void *dst) | |
63 | { | |
64 | struct addrinfo *addr = NULL; | |
65 | struct addrinfo hints = {0}; | |
66 | ||
67 | switch (af) | |
68 | { | |
69 | case AF_INET: | |
70 | #ifdef HAVE_INET6 | |
71 | case AF_INET6: | |
72 | #endif | |
73 | break; | |
74 | default: | |
75 | return -1; | |
76 | } | |
77 | ||
78 | hints.ai_family = af; | |
79 | hints.ai_flags = AI_NUMERICHOST; | |
80 | switch (getaddrinfo(src, NULL, &hints, &addr)) | |
81 | { | |
82 | case 0: | |
83 | break; | |
84 | case EAI_NONAME: | |
85 | return 0; | |
86 | default: | |
87 | return -1; | |
88 | } | |
89 | ||
90 | if (!addr) | |
91 | return -1; | |
92 | ||
93 | switch (af) | |
94 | { | |
95 | case AF_INET: | |
96 | memcpy(dst, &((struct sockaddr_in*)addr->ai_addr)->sin_addr, | |
97 | sizeof(struct in_addr)); | |
98 | break; | |
99 | #ifdef HAVE_INET6 | |
100 | case AF_INET6: | |
101 | memcpy(dst, &((struct sockaddr_in6*)addr->ai_addr)->sin6_addr, | |
102 | sizeof(struct in6_addr)); | |
103 | break; | |
104 | #endif | |
105 | default: | |
106 | break; | |
107 | } | |
108 | ||
109 | freeaddrinfo(addr); | |
110 | ||
111 | return 1; | |
112 | } | |
113 | #endif | |
114 | ||
115 | #elif defined(_XBOX) | |
116 | struct hostent *gethostbyname(const char *name) | |
117 | { | |
118 | static struct in_addr addr = {0}; | |
119 | static struct hostent he = {0}; | |
120 | WSAEVENT event; | |
121 | XNDNS *dns = NULL; | |
122 | struct hostent *ret = NULL; | |
123 | ||
124 | if (!name) | |
125 | return NULL; | |
126 | ||
127 | event = WSACreateEvent(); | |
128 | ||
129 | XNetDnsLookup(name, event, &dns); | |
130 | if (!dns) | |
131 | goto done; | |
132 | ||
133 | WaitForSingleObject((HANDLE)event, INFINITE); | |
134 | ||
135 | if (dns->iStatus) | |
136 | goto done; | |
137 | ||
138 | memcpy(&addr, dns->aina, sizeof(addr)); | |
139 | ||
140 | he.h_name = NULL; | |
141 | he.h_aliases = NULL; | |
142 | he.h_addrtype = AF_INET; | |
143 | he.h_length = sizeof(addr); | |
144 | he.h_addr_list = &he.h_addr; | |
145 | he.h_addr = (char*)&addr; | |
146 | ||
147 | ret = &he; | |
148 | ||
149 | done: | |
150 | WSACloseEvent(event); | |
151 | if (dns) | |
152 | XNetDnsRelease(dns); | |
153 | ||
154 | return ret; | |
155 | } | |
156 | ||
157 | #elif defined(VITA) | |
158 | #define COMPAT_NET_INIT_SIZE 0x80000 | |
159 | ||
160 | char *inet_ntoa(struct in_addr in) | |
161 | { | |
162 | static char ip_addr[16]; | |
163 | ||
164 | sceNetInetNtop(AF_INET, &in, ip_addr, sizeof(ip_addr)); | |
165 | ||
166 | return ip_addr; | |
167 | } | |
168 | ||
169 | int inet_aton(const char *cp, struct in_addr *inp) | |
170 | { | |
171 | return sceNetInetPton(AF_INET, cp, inp); | |
172 | } | |
173 | ||
174 | uint32_t inet_addr(const char *cp) | |
175 | { | |
176 | struct in_addr in; | |
177 | ||
178 | return (sceNetInetPton(AF_INET, cp, &in) == 1) ? in.s_addr : INADDR_NONE; | |
179 | } | |
180 | ||
181 | struct hostent *gethostbyname(const char *name) | |
182 | { | |
183 | static struct SceNetInAddr addr = {0}; | |
184 | static struct hostent he = {0}; | |
185 | int rid; | |
186 | struct hostent *ret = NULL; | |
187 | ||
188 | if (!name) | |
189 | return NULL; | |
190 | ||
191 | rid = sceNetResolverCreate("resolver", NULL, 0); | |
192 | if (rid < 0) | |
193 | return NULL; | |
194 | ||
195 | if (sceNetResolverStartNtoa(rid, name, &addr, 0, 0, 0) < 0) | |
196 | goto done; | |
197 | ||
198 | he.h_name = NULL; | |
199 | he.h_aliases = NULL; | |
200 | he.h_addrtype = AF_INET; | |
201 | he.h_length = sizeof(addr); | |
202 | he.h_addr_list = &he.h_addr; | |
203 | he.h_addr = (char*)&addr; | |
204 | ||
205 | ret = &he; | |
206 | ||
207 | done: | |
208 | sceNetResolverDestroy(rid); | |
209 | ||
210 | return ret; | |
211 | } | |
212 | ||
213 | #elif defined(GEKKO) | |
214 | const char *inet_ntop(int af, const void *src, char *dst, socklen_t size) | |
215 | { | |
216 | const char *addr_str = inet_ntoa(*(struct in_addr*)src); | |
217 | ||
218 | if (addr_str) | |
219 | { | |
220 | strlcpy(dst, addr_str, size); | |
221 | ||
222 | return dst; | |
223 | } | |
224 | ||
225 | return NULL; | |
226 | } | |
227 | ||
228 | int inet_pton(int af, const char *src, void *dst) | |
229 | { | |
230 | if (inet_aton(src, (struct in_addr*)dst)) | |
231 | return 1; | |
232 | ||
233 | return 0; | |
234 | } | |
235 | ||
236 | #elif defined(WIIU) | |
237 | #include <malloc.h> | |
238 | ||
239 | static int _net_compat_thread_entry(int argc, const char **argv) | |
240 | { | |
241 | void *buf = memalign(128, WIIU_RCVBUF + WIIU_SNDBUF); | |
242 | ||
243 | if (!buf) | |
244 | return -1; | |
245 | ||
246 | somemopt(1, buf, WIIU_RCVBUF + WIIU_SNDBUF, 0); | |
247 | ||
248 | free(buf); | |
249 | ||
250 | return 0; | |
251 | } | |
252 | ||
253 | static void _net_compat_thread_cleanup(OSThread *thread, void *stack) | |
254 | { | |
255 | free(stack); | |
256 | } | |
257 | ||
258 | #elif defined(_3DS) | |
259 | #include <malloc.h> | |
260 | #include <3ds/types.h> | |
261 | #include <3ds/services/soc.h> | |
262 | ||
263 | #define SOC_ALIGN 0x1000 | |
264 | #define SOC_BUFFERSIZE 0x100000 | |
265 | #endif | |
266 | ||
267 | int getaddrinfo_retro(const char *node, const char *service, | |
268 | struct addrinfo *hints, struct addrinfo **res) | |
269 | { | |
270 | #if defined(HAVE_SOCKET_LEGACY) || defined(WIIU) | |
271 | struct addrinfo default_hints = {0}; | |
272 | ||
273 | if (!hints) | |
274 | hints = &default_hints; | |
275 | if (!hints->ai_family) | |
276 | hints->ai_family = AF_INET; | |
277 | ||
278 | if (!node) | |
279 | node = (hints->ai_flags & AI_PASSIVE) ? "0.0.0.0" : "127.0.0.1"; | |
280 | #endif | |
281 | ||
282 | #ifdef HAVE_SOCKET_LEGACY | |
283 | { | |
284 | struct addrinfo *info = (struct addrinfo*)calloc(1, sizeof(*info)); | |
285 | struct sockaddr_in *addr = (struct sockaddr_in*)malloc(sizeof(*addr)); | |
286 | ||
287 | if (!info || !addr) | |
288 | goto failure; | |
289 | ||
290 | info->ai_family = AF_INET; | |
291 | info->ai_socktype = hints->ai_socktype; | |
292 | info->ai_protocol = hints->ai_protocol; | |
293 | info->ai_addrlen = sizeof(*addr); | |
294 | info->ai_addr = (struct sockaddr*)addr; | |
295 | /* We ignore AI_CANONNAME; ai_canonname is always NULL. */ | |
296 | ||
297 | addr->sin_family = AF_INET; | |
298 | ||
299 | if (service) | |
300 | { | |
301 | /* We can only handle numeric ports; ignore AI_NUMERICSERV. */ | |
302 | char *service_end = NULL; | |
303 | uint16_t port = (uint16_t)strtoul(service, &service_end, 10); | |
304 | ||
305 | if (service_end == service || *service_end) | |
306 | goto failure; | |
307 | ||
308 | addr->sin_port = htons(port); | |
309 | } | |
310 | ||
311 | if (hints->ai_flags & AI_NUMERICHOST) | |
312 | { | |
313 | if (!inet_aton(node, &addr->sin_addr)) | |
314 | goto failure; | |
315 | } | |
316 | else | |
317 | { | |
318 | struct hostent *host = gethostbyname(node); | |
319 | ||
320 | if (!host || !host->h_addr) | |
321 | goto failure; | |
322 | ||
323 | memcpy(&addr->sin_addr, host->h_addr, sizeof(addr->sin_addr)); | |
324 | } | |
325 | ||
326 | *res = info; | |
327 | ||
328 | return 0; | |
329 | ||
330 | failure: | |
331 | free(addr); | |
332 | free(info); | |
333 | ||
334 | return -1; | |
335 | } | |
336 | #else | |
337 | return getaddrinfo(node, service, hints, res); | |
338 | #endif | |
339 | } | |
340 | ||
341 | void freeaddrinfo_retro(struct addrinfo *res) | |
342 | { | |
343 | #ifdef HAVE_SOCKET_LEGACY | |
344 | if (res) | |
345 | { | |
346 | free(res->ai_addr); | |
347 | free(res); | |
348 | } | |
349 | #else | |
350 | freeaddrinfo(res); | |
351 | #endif | |
352 | } | |
353 | ||
354 | int getnameinfo_retro(const struct sockaddr *addr, socklen_t addrlen, | |
355 | char *host, socklen_t hostlen, char *serv, socklen_t servlen, int flags) | |
356 | { | |
357 | #ifdef HAVE_SOCKET_LEGACY | |
358 | const struct sockaddr_in *addr4 = (const struct sockaddr_in*)addr; | |
359 | ||
360 | /* We cannot perform reverse DNS lookups here; ignore the following flags: | |
361 | NI_NAMEREQD | |
362 | NI_NOFQDN | |
363 | NI_NUMERICHOST (always enforced) | |
364 | */ | |
365 | if (host && hostlen) | |
366 | { | |
367 | const char *_host = inet_ntoa(addr4->sin_addr); | |
368 | ||
369 | if (!_host) | |
370 | return -1; | |
371 | ||
372 | strlcpy(host, _host, hostlen); | |
373 | } | |
374 | ||
375 | /* We cannot get service names here; ignore the following flags: | |
376 | NI_DGRAM | |
377 | NI_NUMERICSERV (always enforced) | |
378 | */ | |
379 | if (serv && servlen) | |
380 | snprintf(serv, servlen, "%hu", (unsigned short)ntohs(addr4->sin_port)); | |
381 | ||
382 | return 0; | |
383 | #else | |
384 | return getnameinfo(addr, addrlen, host, hostlen, serv, servlen, flags); | |
385 | #endif | |
386 | } | |
387 | ||
388 | bool addr_6to4(struct sockaddr_storage *addr) | |
389 | { | |
390 | #ifdef HAVE_INET6 | |
391 | /* ::ffff:a.b.c.d */ | |
392 | static const uint16_t preffix[] = {0,0,0,0,0,0xffff}; | |
393 | uint32_t address; | |
394 | uint16_t port; | |
395 | struct sockaddr_in6 *addr6 = (struct sockaddr_in6*)addr; | |
396 | struct sockaddr_in *addr4 = (struct sockaddr_in*)addr; | |
397 | ||
398 | switch (addr->ss_family) | |
399 | { | |
400 | case AF_INET: | |
401 | /* No need to convert. */ | |
402 | return true; | |
403 | case AF_INET6: | |
404 | /* Is the address provided an IPv4? */ | |
405 | if (!memcmp(&addr6->sin6_addr, preffix, sizeof(preffix))) | |
406 | break; | |
407 | default: | |
408 | /* We don't know how to handle this. */ | |
409 | return false; | |
410 | } | |
411 | ||
412 | memcpy(&address, ((uint8_t*)&addr6->sin6_addr) + sizeof(preffix), | |
413 | sizeof(address)); | |
414 | port = addr6->sin6_port; | |
415 | ||
416 | memset(addr, 0, sizeof(*addr)); | |
417 | ||
418 | addr4->sin_family = AF_INET; | |
419 | addr4->sin_port = port; | |
420 | memcpy(&addr4->sin_addr, &address, sizeof(addr4->sin_addr)); | |
421 | #endif | |
422 | ||
423 | return true; | |
424 | } | |
425 | ||
426 | bool ipv4_is_lan_address(const struct sockaddr_in *addr) | |
427 | { | |
428 | static const uint32_t subnets[] = {0x0A000000, 0xAC100000, 0xC0A80000}; | |
429 | static const uint32_t masks[] = {0xFF000000, 0xFFF00000, 0xFFFF0000}; | |
430 | size_t i; | |
431 | uint32_t uaddr; | |
432 | ||
433 | memcpy(&uaddr, &addr->sin_addr, sizeof(uaddr)); | |
434 | uaddr = ntohl(uaddr); | |
435 | ||
436 | for (i = 0; i < ARRAY_SIZE(subnets); i++) | |
437 | if ((uaddr & masks[i]) == subnets[i]) | |
438 | return true; | |
439 | ||
440 | return false; | |
441 | } | |
442 | ||
443 | bool ipv4_is_cgnat_address(const struct sockaddr_in *addr) | |
444 | { | |
445 | static const uint32_t subnet = 0x64400000; | |
446 | static const uint32_t mask = 0xFFC00000; | |
447 | uint32_t uaddr; | |
448 | ||
449 | memcpy(&uaddr, &addr->sin_addr, sizeof(uaddr)); | |
450 | uaddr = ntohl(uaddr); | |
451 | ||
452 | return (uaddr & mask) == subnet; | |
453 | } | |
454 | ||
455 | /** | |
456 | * network_init: | |
457 | * | |
458 | * Platform specific socket library initialization. | |
459 | * | |
460 | * @return true if successful, otherwise false. | |
461 | **/ | |
462 | bool network_init(void) | |
463 | { | |
464 | #if defined(_WIN32) | |
465 | static bool initialized = false; | |
466 | ||
467 | if (!initialized) | |
468 | { | |
469 | WSADATA wsaData; | |
470 | ||
471 | if (WSAStartup(MAKEWORD(2, 2), &wsaData)) | |
472 | { | |
473 | WSACleanup(); | |
474 | ||
475 | return false; | |
476 | } | |
477 | ||
478 | initialized = true; | |
479 | } | |
480 | ||
481 | return true; | |
482 | #elif defined(__PSL1GHT__) || defined(__PS3__) | |
483 | static bool initialized = false; | |
484 | ||
485 | if (!initialized) | |
486 | { | |
487 | int tries; | |
488 | ||
489 | sysModuleLoad(SYSMODULE_NET); | |
490 | ||
491 | netInitialize(); | |
492 | if (netCtlInit() < 0) | |
493 | goto failure; | |
494 | ||
495 | for (tries = 10;;) | |
496 | { | |
497 | int state; | |
498 | ||
499 | if (netCtlGetState(&state) < 0) | |
500 | goto failure; | |
501 | if (state == NET_CTL_STATE_IPObtained) | |
502 | break; | |
503 | ||
504 | if (!(--tries)) | |
505 | goto failure; | |
506 | ||
507 | retro_sleep(500); | |
508 | } | |
509 | ||
510 | initialized = true; | |
511 | } | |
512 | ||
513 | return true; | |
514 | ||
515 | failure: | |
516 | netCtlTerm(); | |
517 | netFinalizeNetwork(); | |
518 | ||
519 | sysModuleUnload(SYSMODULE_NET); | |
520 | ||
521 | return false; | |
522 | #elif defined(VITA) | |
523 | if (sceNetShowNetstat() == SCE_NET_ERROR_ENOTINIT) | |
524 | { | |
525 | SceNetInitParam param; | |
526 | void *net_compat_memory = malloc(COMPAT_NET_INIT_SIZE); | |
527 | ||
528 | if (!net_compat_memory) | |
529 | return false; | |
530 | ||
531 | param.memory = net_compat_memory; | |
532 | param.size = COMPAT_NET_INIT_SIZE; | |
533 | param.flags = 0; | |
534 | ||
535 | if (sceNetInit(¶m) < 0) | |
536 | goto failure; | |
537 | if (sceNetCtlInit() < 0) | |
538 | goto failure; | |
539 | ||
540 | return true; | |
541 | ||
542 | failure: | |
543 | sceNetCtlTerm(); | |
544 | sceNetTerm(); | |
545 | ||
546 | free(net_compat_memory); | |
547 | ||
548 | return false; | |
549 | } | |
550 | ||
551 | return true; | |
552 | #elif defined(GEKKO) | |
553 | static bool initialized = false; | |
554 | ||
555 | if (!initialized) | |
556 | { | |
557 | char localip[16] = {0}; | |
558 | char netmask[16] = {0}; | |
559 | char gateway[16] = {0}; | |
560 | ||
561 | if (if_config(localip, netmask, gateway, true, 10) < 0) | |
562 | { | |
563 | net_deinit(); | |
564 | ||
565 | return false; | |
566 | } | |
567 | ||
568 | initialized = true; | |
569 | } | |
570 | ||
571 | return true; | |
572 | #elif defined(WIIU) | |
573 | static OSThread net_compat_thread; | |
574 | static bool initialized = false; | |
575 | ||
576 | if (!initialized) | |
577 | { | |
578 | void *stack = malloc(0x1000); | |
579 | ||
580 | if (!stack) | |
581 | return false; | |
582 | ||
583 | socket_lib_init(); | |
584 | ||
585 | if (!OSCreateThread(&net_compat_thread, _net_compat_thread_entry, | |
586 | 0, NULL, (void*)((size_t)stack + 0x1000), 0x1000, 3, | |
587 | OS_THREAD_ATTRIB_AFFINITY_ANY)) | |
588 | { | |
589 | free(stack); | |
590 | ||
591 | return false; | |
592 | } | |
593 | ||
594 | OSSetThreadName(&net_compat_thread, "Network compat thread"); | |
595 | OSSetThreadDeallocator(&net_compat_thread, _net_compat_thread_cleanup); | |
596 | OSResumeThread(&net_compat_thread); | |
597 | ||
598 | initialized = true; | |
599 | } | |
600 | ||
601 | return true; | |
602 | #elif defined(_3DS) | |
603 | static bool initialized = false; | |
604 | ||
605 | if (!initialized) | |
606 | { | |
607 | u32 *net_compat_memory = (u32*)memalign(SOC_ALIGN, SOC_BUFFERSIZE); | |
608 | ||
609 | if (!net_compat_memory) | |
610 | return false; | |
611 | ||
612 | /* WIFI init */ | |
613 | if (socInit(net_compat_memory, SOC_BUFFERSIZE)) | |
614 | { | |
615 | socExit(); | |
616 | ||
617 | free(net_compat_memory); | |
618 | ||
619 | return false; | |
620 | } | |
621 | ||
622 | initialized = true; | |
623 | } | |
624 | ||
625 | return true; | |
626 | #else | |
627 | static bool initialized = false; | |
628 | ||
629 | if (!initialized) | |
630 | { | |
631 | /* Do not like SIGPIPE killing our app. */ | |
632 | signal(SIGPIPE, SIG_IGN); | |
633 | ||
634 | initialized = true; | |
635 | } | |
636 | ||
637 | return true; | |
638 | #endif | |
639 | } |