1 | /* wolfio.c
|
---|
2 | *
|
---|
3 | * Copyright (C) 2006-2020 wolfSSL Inc.
|
---|
4 | *
|
---|
5 | * This file is part of wolfSSL.
|
---|
6 | *
|
---|
7 | * wolfSSL is free software; you can redistribute it and/or modify
|
---|
8 | * it under the terms of the GNU General Public License as published by
|
---|
9 | * the Free Software Foundation; either version 2 of the License, or
|
---|
10 | * (at your option) any later version.
|
---|
11 | *
|
---|
12 | * wolfSSL is distributed in the hope that it will be useful,
|
---|
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
|
---|
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
---|
15 | * GNU General Public License for more details.
|
---|
16 | *
|
---|
17 | * You should have received a copy of the GNU General Public License
|
---|
18 | * along with this program; if not, write to the Free Software
|
---|
19 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
|
---|
20 | */
|
---|
21 |
|
---|
22 |
|
---|
23 |
|
---|
24 | #ifdef HAVE_CONFIG_H
|
---|
25 | #include <config.h>
|
---|
26 | #endif
|
---|
27 |
|
---|
28 | #include <wolfssl/wolfcrypt/settings.h>
|
---|
29 |
|
---|
30 | #ifndef WOLFCRYPT_ONLY
|
---|
31 |
|
---|
32 | #ifdef _WIN32_WCE
|
---|
33 | /* On WinCE winsock2.h must be included before windows.h for socket stuff */
|
---|
34 | #include <winsock2.h>
|
---|
35 | #endif
|
---|
36 |
|
---|
37 | #include <wolfssl/internal.h>
|
---|
38 | #include <wolfssl/error-ssl.h>
|
---|
39 | #include <wolfssl/wolfio.h>
|
---|
40 |
|
---|
41 | #if defined(HAVE_HTTP_CLIENT)
|
---|
42 | #include <stdlib.h> /* strtol() */
|
---|
43 | #endif
|
---|
44 |
|
---|
45 | /*
|
---|
46 | Possible IO enable options:
|
---|
47 | * WOLFSSL_USER_IO: Disables default Embed* callbacks and default: off
|
---|
48 | allows user to define their own using
|
---|
49 | wolfSSL_CTX_SetIORecv and wolfSSL_CTX_SetIOSend
|
---|
50 | * USE_WOLFSSL_IO: Enables the wolfSSL IO functions default: off
|
---|
51 | * HAVE_HTTP_CLIENT: Enables HTTP client API's default: off
|
---|
52 | (unless HAVE_OCSP or HAVE_CRL_IO defined)
|
---|
53 | * HAVE_IO_TIMEOUT: Enables support for connect timeout default: off
|
---|
54 | */
|
---|
55 |
|
---|
56 |
|
---|
57 | /* if user writes own I/O callbacks they can define WOLFSSL_USER_IO to remove
|
---|
58 | automatic setting of default I/O functions EmbedSend() and EmbedReceive()
|
---|
59 | but they'll still need SetCallback xxx() at end of file
|
---|
60 | */
|
---|
61 |
|
---|
62 | #if defined(USE_WOLFSSL_IO) || defined(HAVE_HTTP_CLIENT)
|
---|
63 |
|
---|
64 | /* Translates return codes returned from
|
---|
65 | * send() and recv() if need be.
|
---|
66 | */
|
---|
67 | static WC_INLINE int TranslateReturnCode(int old, int sd)
|
---|
68 | {
|
---|
69 | (void)sd;
|
---|
70 |
|
---|
71 | #if defined(FREESCALE_MQX) || defined(FREESCALE_KSDK_MQX)
|
---|
72 | if (old == 0) {
|
---|
73 | errno = SOCKET_EWOULDBLOCK;
|
---|
74 | return -1; /* convert to BSD style wouldblock as error */
|
---|
75 | }
|
---|
76 |
|
---|
77 | if (old < 0) {
|
---|
78 | errno = RTCS_geterror(sd);
|
---|
79 | if (errno == RTCSERR_TCP_CONN_CLOSING)
|
---|
80 | return 0; /* convert to BSD style closing */
|
---|
81 | if (errno == RTCSERR_TCP_CONN_RLSD)
|
---|
82 | errno = SOCKET_ECONNRESET;
|
---|
83 | if (errno == RTCSERR_TCP_TIMED_OUT)
|
---|
84 | errno = SOCKET_EAGAIN;
|
---|
85 | }
|
---|
86 | #endif
|
---|
87 |
|
---|
88 | return old;
|
---|
89 | }
|
---|
90 |
|
---|
91 | static WC_INLINE int wolfSSL_LastError(void)
|
---|
92 | {
|
---|
93 | #ifdef USE_WINDOWS_API
|
---|
94 | return WSAGetLastError();
|
---|
95 | #elif defined(EBSNET)
|
---|
96 | return xn_getlasterror();
|
---|
97 | #else
|
---|
98 | return errno;
|
---|
99 | #endif
|
---|
100 | }
|
---|
101 |
|
---|
102 | #endif /* USE_WOLFSSL_IO || HAVE_HTTP_CLIENT */
|
---|
103 |
|
---|
104 |
|
---|
105 | #ifdef OPENSSL_EXTRA
|
---|
106 | /* Use the WOLFSSL read BIO for receiving data. This is set by the function
|
---|
107 | * wolfSSL_set_bio and can also be set by wolfSSL_CTX_SetIORecv.
|
---|
108 | *
|
---|
109 | * ssl WOLFSSL struct passed in that has this function set as the receive
|
---|
110 | * callback.
|
---|
111 | * buf buffer to fill with data read
|
---|
112 | * sz size of buf buffer
|
---|
113 | * ctx a user set context
|
---|
114 | *
|
---|
115 | * returns the amount of data read or want read. See WOLFSSL_CBIO_ERR_* values.
|
---|
116 | */
|
---|
117 | int BioReceive(WOLFSSL* ssl, char* buf, int sz, void* ctx)
|
---|
118 | {
|
---|
119 | int recvd = WOLFSSL_CBIO_ERR_GENERAL;
|
---|
120 |
|
---|
121 | WOLFSSL_ENTER("BioReceive");
|
---|
122 |
|
---|
123 | if (ssl->biord == NULL) {
|
---|
124 | WOLFSSL_MSG("WOLFSSL biord not set");
|
---|
125 | return WOLFSSL_CBIO_ERR_GENERAL;
|
---|
126 | }
|
---|
127 |
|
---|
128 | if (ssl->biord->method && ssl->biord->method->readCb) {
|
---|
129 | WOLFSSL_MSG("Calling custom biord");
|
---|
130 | recvd = ssl->biord->method->readCb(ssl->biord, buf, sz);
|
---|
131 | if (recvd < 0 && recvd != WOLFSSL_CBIO_ERR_WANT_READ)
|
---|
132 | return WOLFSSL_CBIO_ERR_GENERAL;
|
---|
133 | return recvd;
|
---|
134 | }
|
---|
135 |
|
---|
136 | switch (ssl->biord->type) {
|
---|
137 | case WOLFSSL_BIO_MEMORY:
|
---|
138 | case WOLFSSL_BIO_BIO:
|
---|
139 | if (wolfSSL_BIO_ctrl_pending(ssl->biord) == 0) {
|
---|
140 | WOLFSSL_MSG("BIO want read");
|
---|
141 | return WOLFSSL_CBIO_ERR_WANT_READ;
|
---|
142 | }
|
---|
143 | recvd = wolfSSL_BIO_read(ssl->biord, buf, sz);
|
---|
144 | if (recvd <= 0) {
|
---|
145 | WOLFSSL_MSG("BIO general error");
|
---|
146 | return WOLFSSL_CBIO_ERR_GENERAL;
|
---|
147 | }
|
---|
148 | break;
|
---|
149 |
|
---|
150 | default:
|
---|
151 | WOLFSSL_MSG("This BIO type is unknown / unsupported");
|
---|
152 | return WOLFSSL_CBIO_ERR_GENERAL;
|
---|
153 | }
|
---|
154 |
|
---|
155 | (void)ctx;
|
---|
156 | return recvd;
|
---|
157 | }
|
---|
158 |
|
---|
159 |
|
---|
160 | /* Use the WOLFSSL write BIO for sending data. This is set by the function
|
---|
161 | * wolfSSL_set_bio and can also be set by wolfSSL_CTX_SetIOSend.
|
---|
162 | *
|
---|
163 | * ssl WOLFSSL struct passed in that has this function set as the send callback.
|
---|
164 | * buf buffer with data to write out
|
---|
165 | * sz size of buf buffer
|
---|
166 | * ctx a user set context
|
---|
167 | *
|
---|
168 | * returns the amount of data sent or want send. See WOLFSSL_CBIO_ERR_* values.
|
---|
169 | */
|
---|
170 | int BioSend(WOLFSSL* ssl, char *buf, int sz, void *ctx)
|
---|
171 | {
|
---|
172 | int sent = WOLFSSL_CBIO_ERR_GENERAL;
|
---|
173 |
|
---|
174 | WOLFSSL_ENTER("BioSend");
|
---|
175 |
|
---|
176 | if (ssl->biowr == NULL) {
|
---|
177 | WOLFSSL_MSG("WOLFSSL biowr not set");
|
---|
178 | return WOLFSSL_CBIO_ERR_GENERAL;
|
---|
179 | }
|
---|
180 |
|
---|
181 | if (ssl->biowr->method && ssl->biowr->method->writeCb) {
|
---|
182 | WOLFSSL_MSG("Calling custom biowr");
|
---|
183 | sent = ssl->biowr->method->writeCb(ssl->biowr, buf, sz);
|
---|
184 | if (sent < 0) {
|
---|
185 | return WOLFSSL_CBIO_ERR_GENERAL;
|
---|
186 | }
|
---|
187 | return sent;
|
---|
188 | }
|
---|
189 |
|
---|
190 | switch (ssl->biowr->type) {
|
---|
191 | case WOLFSSL_BIO_MEMORY:
|
---|
192 | case WOLFSSL_BIO_BIO:
|
---|
193 | sent = wolfSSL_BIO_write(ssl->biowr, buf, sz);
|
---|
194 | if (sent < 0) {
|
---|
195 | return WOLFSSL_CBIO_ERR_GENERAL;
|
---|
196 | }
|
---|
197 | break;
|
---|
198 |
|
---|
199 | default:
|
---|
200 | WOLFSSL_MSG("This BIO type is unknown / unsupported");
|
---|
201 | return WOLFSSL_CBIO_ERR_GENERAL;
|
---|
202 | }
|
---|
203 | (void)ctx;
|
---|
204 |
|
---|
205 | return sent;
|
---|
206 | }
|
---|
207 | #endif
|
---|
208 |
|
---|
209 |
|
---|
210 | #ifdef USE_WOLFSSL_IO
|
---|
211 |
|
---|
212 | /* The receive embedded callback
|
---|
213 | * return : nb bytes read, or error
|
---|
214 | */
|
---|
215 | int EmbedReceive(WOLFSSL *ssl, char *buf, int sz, void *ctx)
|
---|
216 | {
|
---|
217 | int sd = *(int*)ctx;
|
---|
218 | int recvd;
|
---|
219 |
|
---|
220 | recvd = wolfIO_Recv(sd, buf, sz, ssl->rflags);
|
---|
221 | if (recvd < 0) {
|
---|
222 | int err = wolfSSL_LastError();
|
---|
223 | WOLFSSL_MSG("Embed Receive error");
|
---|
224 |
|
---|
225 | if (err == SOCKET_EWOULDBLOCK || err == SOCKET_EAGAIN) {
|
---|
226 | WOLFSSL_MSG("\tWould block");
|
---|
227 | return WOLFSSL_CBIO_ERR_WANT_READ;
|
---|
228 | }
|
---|
229 | else if (err == SOCKET_ECONNRESET) {
|
---|
230 | WOLFSSL_MSG("\tConnection reset");
|
---|
231 | return WOLFSSL_CBIO_ERR_CONN_RST;
|
---|
232 | }
|
---|
233 | else if (err == SOCKET_EINTR) {
|
---|
234 | WOLFSSL_MSG("\tSocket interrupted");
|
---|
235 | return WOLFSSL_CBIO_ERR_ISR;
|
---|
236 | }
|
---|
237 | else if (err == SOCKET_ECONNABORTED) {
|
---|
238 | WOLFSSL_MSG("\tConnection aborted");
|
---|
239 | return WOLFSSL_CBIO_ERR_CONN_CLOSE;
|
---|
240 | }
|
---|
241 | else {
|
---|
242 | WOLFSSL_MSG("\tGeneral error");
|
---|
243 | return WOLFSSL_CBIO_ERR_GENERAL;
|
---|
244 | }
|
---|
245 | }
|
---|
246 | else if (recvd == 0) {
|
---|
247 | WOLFSSL_MSG("Embed receive connection closed");
|
---|
248 | return WOLFSSL_CBIO_ERR_CONN_CLOSE;
|
---|
249 | }
|
---|
250 |
|
---|
251 | return recvd;
|
---|
252 | }
|
---|
253 |
|
---|
254 | /* The send embedded callback
|
---|
255 | * return : nb bytes sent, or error
|
---|
256 | */
|
---|
257 | int EmbedSend(WOLFSSL* ssl, char *buf, int sz, void *ctx)
|
---|
258 | {
|
---|
259 | int sd = *(int*)ctx;
|
---|
260 | int sent;
|
---|
261 |
|
---|
262 | #ifdef WOLFSSL_MAX_SEND_SZ
|
---|
263 | if (sz > WOLFSSL_MAX_SEND_SZ)
|
---|
264 | sz = WOLFSSL_MAX_SEND_SZ;
|
---|
265 | #endif
|
---|
266 |
|
---|
267 | sent = wolfIO_Send(sd, buf, sz, ssl->wflags);
|
---|
268 | if (sent < 0) {
|
---|
269 | int err = wolfSSL_LastError();
|
---|
270 | WOLFSSL_MSG("Embed Send error");
|
---|
271 |
|
---|
272 | if (err == SOCKET_EWOULDBLOCK || err == SOCKET_EAGAIN) {
|
---|
273 | WOLFSSL_MSG("\tWould Block");
|
---|
274 | return WOLFSSL_CBIO_ERR_WANT_WRITE;
|
---|
275 | }
|
---|
276 | else if (err == SOCKET_ECONNRESET) {
|
---|
277 | WOLFSSL_MSG("\tConnection reset");
|
---|
278 | return WOLFSSL_CBIO_ERR_CONN_RST;
|
---|
279 | }
|
---|
280 | else if (err == SOCKET_EINTR) {
|
---|
281 | WOLFSSL_MSG("\tSocket interrupted");
|
---|
282 | return WOLFSSL_CBIO_ERR_ISR;
|
---|
283 | }
|
---|
284 | else if (err == SOCKET_EPIPE) {
|
---|
285 | WOLFSSL_MSG("\tSocket EPIPE");
|
---|
286 | return WOLFSSL_CBIO_ERR_CONN_CLOSE;
|
---|
287 | }
|
---|
288 | else {
|
---|
289 | WOLFSSL_MSG("\tGeneral error");
|
---|
290 | return WOLFSSL_CBIO_ERR_GENERAL;
|
---|
291 | }
|
---|
292 | }
|
---|
293 |
|
---|
294 | return sent;
|
---|
295 | }
|
---|
296 |
|
---|
297 |
|
---|
298 | #ifdef WOLFSSL_DTLS
|
---|
299 |
|
---|
300 | #include <wolfssl/wolfcrypt/sha.h>
|
---|
301 |
|
---|
302 | #define SENDTO_FUNCTION sendto
|
---|
303 | #define RECVFROM_FUNCTION recvfrom
|
---|
304 |
|
---|
305 |
|
---|
306 | /* The receive embedded callback
|
---|
307 | * return : nb bytes read, or error
|
---|
308 | */
|
---|
309 | int EmbedReceiveFrom(WOLFSSL *ssl, char *buf, int sz, void *ctx)
|
---|
310 | {
|
---|
311 | WOLFSSL_DTLS_CTX* dtlsCtx = (WOLFSSL_DTLS_CTX*)ctx;
|
---|
312 | int recvd;
|
---|
313 | int err;
|
---|
314 | int sd = dtlsCtx->rfd;
|
---|
315 | int dtls_timeout = wolfSSL_dtls_get_current_timeout(ssl);
|
---|
316 | SOCKADDR_S peer;
|
---|
317 | XSOCKLENT peerSz = sizeof(peer);
|
---|
318 |
|
---|
319 | WOLFSSL_ENTER("EmbedReceiveFrom()");
|
---|
320 |
|
---|
321 | if (ssl->options.handShakeDone)
|
---|
322 | dtls_timeout = 0;
|
---|
323 |
|
---|
324 | if (!wolfSSL_get_using_nonblock(ssl)) {
|
---|
325 | #ifdef USE_WINDOWS_API
|
---|
326 | DWORD timeout = dtls_timeout * 1000;
|
---|
327 | #else
|
---|
328 | struct timeval timeout;
|
---|
329 | XMEMSET(&timeout, 0, sizeof(timeout));
|
---|
330 | timeout.tv_sec = dtls_timeout;
|
---|
331 | #endif
|
---|
332 | if (setsockopt(sd, SOL_SOCKET, SO_RCVTIMEO, (char*)&timeout,
|
---|
333 | sizeof(timeout)) != 0) {
|
---|
334 | WOLFSSL_MSG("setsockopt rcvtimeo failed");
|
---|
335 | }
|
---|
336 | }
|
---|
337 |
|
---|
338 | recvd = (int)RECVFROM_FUNCTION(sd, buf, sz, ssl->rflags,
|
---|
339 | (SOCKADDR*)&peer, &peerSz);
|
---|
340 |
|
---|
341 | recvd = TranslateReturnCode(recvd, sd);
|
---|
342 |
|
---|
343 | if (recvd < 0) {
|
---|
344 | err = wolfSSL_LastError();
|
---|
345 | WOLFSSL_MSG("Embed Receive From error");
|
---|
346 |
|
---|
347 | if (err == SOCKET_EWOULDBLOCK || err == SOCKET_EAGAIN) {
|
---|
348 | if (wolfSSL_dtls_get_using_nonblock(ssl)) {
|
---|
349 | WOLFSSL_MSG("\tWould block");
|
---|
350 | return WOLFSSL_CBIO_ERR_WANT_READ;
|
---|
351 | }
|
---|
352 | else {
|
---|
353 | WOLFSSL_MSG("\tSocket timeout");
|
---|
354 | return WOLFSSL_CBIO_ERR_TIMEOUT;
|
---|
355 | }
|
---|
356 | }
|
---|
357 | else if (err == SOCKET_ECONNRESET) {
|
---|
358 | WOLFSSL_MSG("\tConnection reset");
|
---|
359 | return WOLFSSL_CBIO_ERR_CONN_RST;
|
---|
360 | }
|
---|
361 | else if (err == SOCKET_EINTR) {
|
---|
362 | WOLFSSL_MSG("\tSocket interrupted");
|
---|
363 | return WOLFSSL_CBIO_ERR_ISR;
|
---|
364 | }
|
---|
365 | else if (err == SOCKET_ECONNREFUSED) {
|
---|
366 | WOLFSSL_MSG("\tConnection refused");
|
---|
367 | return WOLFSSL_CBIO_ERR_WANT_READ;
|
---|
368 | }
|
---|
369 | else {
|
---|
370 | WOLFSSL_MSG("\tGeneral error");
|
---|
371 | return WOLFSSL_CBIO_ERR_GENERAL;
|
---|
372 | }
|
---|
373 | }
|
---|
374 | else {
|
---|
375 | if (dtlsCtx->peer.sz > 0
|
---|
376 | && peerSz != (XSOCKLENT)dtlsCtx->peer.sz
|
---|
377 | && XMEMCMP(&peer, dtlsCtx->peer.sa, peerSz) != 0) {
|
---|
378 | WOLFSSL_MSG(" Ignored packet from invalid peer");
|
---|
379 | return WOLFSSL_CBIO_ERR_WANT_READ;
|
---|
380 | }
|
---|
381 | }
|
---|
382 |
|
---|
383 | return recvd;
|
---|
384 | }
|
---|
385 |
|
---|
386 |
|
---|
387 | /* The send embedded callback
|
---|
388 | * return : nb bytes sent, or error
|
---|
389 | */
|
---|
390 | int EmbedSendTo(WOLFSSL* ssl, char *buf, int sz, void *ctx)
|
---|
391 | {
|
---|
392 | WOLFSSL_DTLS_CTX* dtlsCtx = (WOLFSSL_DTLS_CTX*)ctx;
|
---|
393 | int sd = dtlsCtx->wfd;
|
---|
394 | int sent;
|
---|
395 | int err;
|
---|
396 |
|
---|
397 | WOLFSSL_ENTER("EmbedSendTo()");
|
---|
398 |
|
---|
399 | sent = (int)SENDTO_FUNCTION(sd, buf, sz, ssl->wflags,
|
---|
400 | (const SOCKADDR*)dtlsCtx->peer.sa,
|
---|
401 | dtlsCtx->peer.sz);
|
---|
402 |
|
---|
403 | sent = TranslateReturnCode(sent, sd);
|
---|
404 |
|
---|
405 | if (sent < 0) {
|
---|
406 | err = wolfSSL_LastError();
|
---|
407 | WOLFSSL_MSG("Embed Send To error");
|
---|
408 |
|
---|
409 | if (err == SOCKET_EWOULDBLOCK || err == SOCKET_EAGAIN) {
|
---|
410 | WOLFSSL_MSG("\tWould Block");
|
---|
411 | return WOLFSSL_CBIO_ERR_WANT_WRITE;
|
---|
412 | }
|
---|
413 | else if (err == SOCKET_ECONNRESET) {
|
---|
414 | WOLFSSL_MSG("\tConnection reset");
|
---|
415 | return WOLFSSL_CBIO_ERR_CONN_RST;
|
---|
416 | }
|
---|
417 | else if (err == SOCKET_EINTR) {
|
---|
418 | WOLFSSL_MSG("\tSocket interrupted");
|
---|
419 | return WOLFSSL_CBIO_ERR_ISR;
|
---|
420 | }
|
---|
421 | else if (err == SOCKET_EPIPE) {
|
---|
422 | WOLFSSL_MSG("\tSocket EPIPE");
|
---|
423 | return WOLFSSL_CBIO_ERR_CONN_CLOSE;
|
---|
424 | }
|
---|
425 | else {
|
---|
426 | WOLFSSL_MSG("\tGeneral error");
|
---|
427 | return WOLFSSL_CBIO_ERR_GENERAL;
|
---|
428 | }
|
---|
429 | }
|
---|
430 |
|
---|
431 | return sent;
|
---|
432 | }
|
---|
433 |
|
---|
434 |
|
---|
435 | #ifdef WOLFSSL_MULTICAST
|
---|
436 |
|
---|
437 | /* The alternate receive embedded callback for Multicast
|
---|
438 | * return : nb bytes read, or error
|
---|
439 | */
|
---|
440 | int EmbedReceiveFromMcast(WOLFSSL *ssl, char *buf, int sz, void *ctx)
|
---|
441 | {
|
---|
442 | WOLFSSL_DTLS_CTX* dtlsCtx = (WOLFSSL_DTLS_CTX*)ctx;
|
---|
443 | int recvd;
|
---|
444 | int err;
|
---|
445 | int sd = dtlsCtx->rfd;
|
---|
446 |
|
---|
447 | WOLFSSL_ENTER("EmbedReceiveFromMcast()");
|
---|
448 |
|
---|
449 | recvd = (int)RECVFROM_FUNCTION(sd, buf, sz, ssl->rflags, NULL, NULL);
|
---|
450 |
|
---|
451 | recvd = TranslateReturnCode(recvd, sd);
|
---|
452 |
|
---|
453 | if (recvd < 0) {
|
---|
454 | err = wolfSSL_LastError();
|
---|
455 | WOLFSSL_MSG("Embed Receive From error");
|
---|
456 |
|
---|
457 | if (err == SOCKET_EWOULDBLOCK || err == SOCKET_EAGAIN) {
|
---|
458 | if (wolfSSL_dtls_get_using_nonblock(ssl)) {
|
---|
459 | WOLFSSL_MSG("\tWould block");
|
---|
460 | return WOLFSSL_CBIO_ERR_WANT_READ;
|
---|
461 | }
|
---|
462 | else {
|
---|
463 | WOLFSSL_MSG("\tSocket timeout");
|
---|
464 | return WOLFSSL_CBIO_ERR_TIMEOUT;
|
---|
465 | }
|
---|
466 | }
|
---|
467 | else if (err == SOCKET_ECONNRESET) {
|
---|
468 | WOLFSSL_MSG("\tConnection reset");
|
---|
469 | return WOLFSSL_CBIO_ERR_CONN_RST;
|
---|
470 | }
|
---|
471 | else if (err == SOCKET_EINTR) {
|
---|
472 | WOLFSSL_MSG("\tSocket interrupted");
|
---|
473 | return WOLFSSL_CBIO_ERR_ISR;
|
---|
474 | }
|
---|
475 | else if (err == SOCKET_ECONNREFUSED) {
|
---|
476 | WOLFSSL_MSG("\tConnection refused");
|
---|
477 | return WOLFSSL_CBIO_ERR_WANT_READ;
|
---|
478 | }
|
---|
479 | else {
|
---|
480 | WOLFSSL_MSG("\tGeneral error");
|
---|
481 | return WOLFSSL_CBIO_ERR_GENERAL;
|
---|
482 | }
|
---|
483 | }
|
---|
484 |
|
---|
485 | return recvd;
|
---|
486 | }
|
---|
487 | #endif /* WOLFSSL_MULTICAST */
|
---|
488 |
|
---|
489 |
|
---|
490 | /* The DTLS Generate Cookie callback
|
---|
491 | * return : number of bytes copied into buf, or error
|
---|
492 | */
|
---|
493 | int EmbedGenerateCookie(WOLFSSL* ssl, byte *buf, int sz, void *ctx)
|
---|
494 | {
|
---|
495 | int sd = ssl->wfd;
|
---|
496 | SOCKADDR_S peer;
|
---|
497 | XSOCKLENT peerSz = sizeof(peer);
|
---|
498 | byte digest[WC_SHA256_DIGEST_SIZE];
|
---|
499 | int ret = 0;
|
---|
500 |
|
---|
501 | (void)ctx;
|
---|
502 |
|
---|
503 | XMEMSET(&peer, 0, sizeof(peer));
|
---|
504 | if (getpeername(sd, (SOCKADDR*)&peer, &peerSz) != 0) {
|
---|
505 | WOLFSSL_MSG("getpeername failed in EmbedGenerateCookie");
|
---|
506 | return GEN_COOKIE_E;
|
---|
507 | }
|
---|
508 |
|
---|
509 | ret = wc_Sha256Hash((byte*)&peer, peerSz, digest);
|
---|
510 | if (ret != 0)
|
---|
511 | return ret;
|
---|
512 |
|
---|
513 | if (sz > WC_SHA256_DIGEST_SIZE)
|
---|
514 | sz = WC_SHA256_DIGEST_SIZE;
|
---|
515 | XMEMCPY(buf, digest, sz);
|
---|
516 |
|
---|
517 | return sz;
|
---|
518 | }
|
---|
519 |
|
---|
520 | #ifdef WOLFSSL_SESSION_EXPORT
|
---|
521 |
|
---|
522 | /* get the peer information in human readable form (ip, port, family)
|
---|
523 | * default function assumes BSD sockets
|
---|
524 | * can be overridden with wolfSSL_CTX_SetIOGetPeer
|
---|
525 | */
|
---|
526 | int EmbedGetPeer(WOLFSSL* ssl, char* ip, int* ipSz,
|
---|
527 | unsigned short* port, int* fam)
|
---|
528 | {
|
---|
529 | SOCKADDR_S peer;
|
---|
530 | word32 peerSz;
|
---|
531 | int ret;
|
---|
532 |
|
---|
533 | if (ssl == NULL || ip == NULL || ipSz == NULL ||
|
---|
534 | port == NULL || fam == NULL) {
|
---|
535 | return BAD_FUNC_ARG;
|
---|
536 | }
|
---|
537 |
|
---|
538 | /* get peer information stored in ssl struct */
|
---|
539 | peerSz = sizeof(SOCKADDR_S);
|
---|
540 | if ((ret = wolfSSL_dtls_get_peer(ssl, (void*)&peer, &peerSz))
|
---|
541 | != WOLFSSL_SUCCESS) {
|
---|
542 | return ret;
|
---|
543 | }
|
---|
544 |
|
---|
545 | /* extract family, ip, and port */
|
---|
546 | *fam = ((SOCKADDR_S*)&peer)->ss_family;
|
---|
547 | switch (*fam) {
|
---|
548 | case WOLFSSL_IP4:
|
---|
549 | if (XINET_NTOP(*fam, &(((SOCKADDR_IN*)&peer)->sin_addr),
|
---|
550 | ip, *ipSz) == NULL) {
|
---|
551 | WOLFSSL_MSG("XINET_NTOP error");
|
---|
552 | return SOCKET_ERROR_E;
|
---|
553 | }
|
---|
554 | *port = XNTOHS(((SOCKADDR_IN*)&peer)->sin_port);
|
---|
555 | break;
|
---|
556 |
|
---|
557 | case WOLFSSL_IP6:
|
---|
558 | #ifdef WOLFSSL_IPV6
|
---|
559 | if (XINET_NTOP(*fam, &(((SOCKADDR_IN6*)&peer)->sin6_addr),
|
---|
560 | ip, *ipSz) == NULL) {
|
---|
561 | WOLFSSL_MSG("XINET_NTOP error");
|
---|
562 | return SOCKET_ERROR_E;
|
---|
563 | }
|
---|
564 | *port = XNTOHS(((SOCKADDR_IN6*)&peer)->sin6_port);
|
---|
565 | #endif /* WOLFSSL_IPV6 */
|
---|
566 | break;
|
---|
567 |
|
---|
568 | default:
|
---|
569 | WOLFSSL_MSG("Unknown family type");
|
---|
570 | return SOCKET_ERROR_E;
|
---|
571 | }
|
---|
572 | ip[*ipSz - 1] = '\0'; /* make sure has terminator */
|
---|
573 | *ipSz = (word16)XSTRLEN(ip);
|
---|
574 |
|
---|
575 | return WOLFSSL_SUCCESS;
|
---|
576 | }
|
---|
577 |
|
---|
578 | /* set the peer information in human readable form (ip, port, family)
|
---|
579 | * default function assumes BSD sockets
|
---|
580 | * can be overridden with wolfSSL_CTX_SetIOSetPeer
|
---|
581 | */
|
---|
582 | int EmbedSetPeer(WOLFSSL* ssl, char* ip, int ipSz,
|
---|
583 | unsigned short port, int fam)
|
---|
584 | {
|
---|
585 | int ret;
|
---|
586 | SOCKADDR_S addr;
|
---|
587 |
|
---|
588 | /* sanity checks on arguments */
|
---|
589 | if (ssl == NULL || ip == NULL || ipSz < 0 || ipSz > DTLS_EXPORT_IP) {
|
---|
590 | return BAD_FUNC_ARG;
|
---|
591 | }
|
---|
592 |
|
---|
593 | addr.ss_family = fam;
|
---|
594 | switch (addr.ss_family) {
|
---|
595 | case WOLFSSL_IP4:
|
---|
596 | if (XINET_PTON(addr.ss_family, ip,
|
---|
597 | &(((SOCKADDR_IN*)&addr)->sin_addr)) <= 0) {
|
---|
598 | WOLFSSL_MSG("XINET_PTON error");
|
---|
599 | return SOCKET_ERROR_E;
|
---|
600 | }
|
---|
601 | ((SOCKADDR_IN*)&addr)->sin_port = XHTONS(port);
|
---|
602 |
|
---|
603 | /* peer sa is free'd in SSL_ResourceFree */
|
---|
604 | if ((ret = wolfSSL_dtls_set_peer(ssl, (SOCKADDR_IN*)&addr,
|
---|
605 | sizeof(SOCKADDR_IN)))!= WOLFSSL_SUCCESS) {
|
---|
606 | WOLFSSL_MSG("Import DTLS peer info error");
|
---|
607 | return ret;
|
---|
608 | }
|
---|
609 | break;
|
---|
610 |
|
---|
611 | case WOLFSSL_IP6:
|
---|
612 | #ifdef WOLFSSL_IPV6
|
---|
613 | if (XINET_PTON(addr.ss_family, ip,
|
---|
614 | &(((SOCKADDR_IN6*)&addr)->sin6_addr)) <= 0) {
|
---|
615 | WOLFSSL_MSG("XINET_PTON error");
|
---|
616 | return SOCKET_ERROR_E;
|
---|
617 | }
|
---|
618 | ((SOCKADDR_IN6*)&addr)->sin6_port = XHTONS(port);
|
---|
619 |
|
---|
620 | /* peer sa is free'd in SSL_ResourceFree */
|
---|
621 | if ((ret = wolfSSL_dtls_set_peer(ssl, (SOCKADDR_IN6*)&addr,
|
---|
622 | sizeof(SOCKADDR_IN6)))!= WOLFSSL_SUCCESS) {
|
---|
623 | WOLFSSL_MSG("Import DTLS peer info error");
|
---|
624 | return ret;
|
---|
625 | }
|
---|
626 | #endif /* WOLFSSL_IPV6 */
|
---|
627 | break;
|
---|
628 |
|
---|
629 | default:
|
---|
630 | WOLFSSL_MSG("Unknown address family");
|
---|
631 | return BUFFER_E;
|
---|
632 | }
|
---|
633 |
|
---|
634 | return WOLFSSL_SUCCESS;
|
---|
635 | }
|
---|
636 | #endif /* WOLFSSL_SESSION_EXPORT */
|
---|
637 | #endif /* WOLFSSL_DTLS */
|
---|
638 |
|
---|
639 |
|
---|
640 | int wolfIO_Recv(SOCKET_T sd, char *buf, int sz, int rdFlags)
|
---|
641 | {
|
---|
642 | int recvd;
|
---|
643 |
|
---|
644 | recvd = (int)RECV_FUNCTION(sd, buf, sz, rdFlags);
|
---|
645 | recvd = TranslateReturnCode(recvd, sd);
|
---|
646 |
|
---|
647 | return recvd;
|
---|
648 | }
|
---|
649 |
|
---|
650 | int wolfIO_Send(SOCKET_T sd, char *buf, int sz, int wrFlags)
|
---|
651 | {
|
---|
652 | int sent;
|
---|
653 |
|
---|
654 | sent = (int)SEND_FUNCTION(sd, buf, sz, wrFlags);
|
---|
655 | sent = TranslateReturnCode(sent, sd);
|
---|
656 |
|
---|
657 | return sent;
|
---|
658 | }
|
---|
659 |
|
---|
660 | #endif /* USE_WOLFSSL_IO */
|
---|
661 |
|
---|
662 |
|
---|
663 | #ifdef HAVE_HTTP_CLIENT
|
---|
664 |
|
---|
665 | #ifndef HAVE_IO_TIMEOUT
|
---|
666 | #define io_timeout_sec 0
|
---|
667 | #else
|
---|
668 |
|
---|
669 | #ifndef DEFAULT_TIMEOUT_SEC
|
---|
670 | #define DEFAULT_TIMEOUT_SEC 0 /* no timeout */
|
---|
671 | #endif
|
---|
672 |
|
---|
673 | static int io_timeout_sec = DEFAULT_TIMEOUT_SEC;
|
---|
674 |
|
---|
675 | void wolfIO_SetTimeout(int to_sec)
|
---|
676 | {
|
---|
677 | io_timeout_sec = to_sec;
|
---|
678 | }
|
---|
679 |
|
---|
680 | int wolfIO_SetBlockingMode(SOCKET_T sockfd, int non_blocking)
|
---|
681 | {
|
---|
682 | int ret = 0;
|
---|
683 |
|
---|
684 | #ifdef USE_WINDOWS_API
|
---|
685 | unsigned long blocking = non_blocking;
|
---|
686 | ret = ioctlsocket(sockfd, FIONBIO, &blocking);
|
---|
687 | if (ret == SOCKET_ERROR)
|
---|
688 | ret = -1;
|
---|
689 | #else
|
---|
690 | ret = fcntl(sockfd, F_GETFL, 0);
|
---|
691 | if (ret >= 0) {
|
---|
692 | if (non_blocking)
|
---|
693 | ret |= O_NONBLOCK;
|
---|
694 | else
|
---|
695 | ret &= ~O_NONBLOCK;
|
---|
696 | ret = fcntl(sockfd, F_SETFL, ret);
|
---|
697 | }
|
---|
698 | #endif
|
---|
699 | if (ret < 0) {
|
---|
700 | WOLFSSL_MSG("wolfIO_SetBlockingMode failed");
|
---|
701 | }
|
---|
702 |
|
---|
703 | return ret;
|
---|
704 | }
|
---|
705 |
|
---|
706 | int wolfIO_Select(SOCKET_T sockfd, int to_sec)
|
---|
707 | {
|
---|
708 | fd_set rfds, wfds;
|
---|
709 | int nfds = 0;
|
---|
710 | struct timeval timeout = { (to_sec > 0) ? to_sec : 0, 0};
|
---|
711 | int ret;
|
---|
712 |
|
---|
713 | #ifndef USE_WINDOWS_API
|
---|
714 | nfds = (int)sockfd + 1;
|
---|
715 | #endif
|
---|
716 |
|
---|
717 | FD_ZERO(&rfds);
|
---|
718 | FD_SET(sockfd, &rfds);
|
---|
719 | wfds = rfds;
|
---|
720 |
|
---|
721 | ret = select(nfds, &rfds, &wfds, NULL, &timeout);
|
---|
722 | if (ret == 0) {
|
---|
723 | #ifdef DEBUG_HTTP
|
---|
724 | printf("Timeout: %d\n", ret);
|
---|
725 | #endif
|
---|
726 | return HTTP_TIMEOUT;
|
---|
727 | }
|
---|
728 | else if (ret > 0) {
|
---|
729 | if (FD_ISSET(sockfd, &wfds)) {
|
---|
730 | if (!FD_ISSET(sockfd, &rfds)) {
|
---|
731 | return 0;
|
---|
732 | }
|
---|
733 | }
|
---|
734 | }
|
---|
735 | return SOCKET_ERROR_E;
|
---|
736 | }
|
---|
737 | #endif /* HAVE_IO_TIMEOUT */
|
---|
738 |
|
---|
739 | static int wolfIO_Word16ToString(char* d, word16 number)
|
---|
740 | {
|
---|
741 | int i = 0;
|
---|
742 | word16 order = 10000;
|
---|
743 | word16 digit;
|
---|
744 |
|
---|
745 | if (d == NULL)
|
---|
746 | return i;
|
---|
747 |
|
---|
748 | if (number == 0)
|
---|
749 | d[i++] = '0';
|
---|
750 | else {
|
---|
751 | while (order) {
|
---|
752 | digit = number / order;
|
---|
753 | if (i > 0 || digit != 0)
|
---|
754 | d[i++] = (char)digit + '0';
|
---|
755 | if (digit != 0)
|
---|
756 | number %= digit * order;
|
---|
757 |
|
---|
758 | order = (order > 1) ? order / 10 : 0;
|
---|
759 | }
|
---|
760 | }
|
---|
761 | d[i] = 0; /* null terminate */
|
---|
762 |
|
---|
763 | return i;
|
---|
764 | }
|
---|
765 |
|
---|
766 | int wolfIO_TcpConnect(SOCKET_T* sockfd, const char* ip, word16 port, int to_sec)
|
---|
767 | {
|
---|
768 | #ifdef HAVE_SOCKADDR
|
---|
769 | int ret = 0;
|
---|
770 | SOCKADDR_S addr;
|
---|
771 | int sockaddr_len = sizeof(SOCKADDR_IN);
|
---|
772 | /* use gethostbyname for c99 */
|
---|
773 | #if defined(HAVE_GETADDRINFO) && !defined(WOLF_C99)
|
---|
774 | ADDRINFO hints;
|
---|
775 | ADDRINFO* answer = NULL;
|
---|
776 | char strPort[6];
|
---|
777 | #else
|
---|
778 | HOSTENT* entry;
|
---|
779 | SOCKADDR_IN *sin;
|
---|
780 | #endif
|
---|
781 |
|
---|
782 | XMEMSET(&addr, 0, sizeof(addr));
|
---|
783 |
|
---|
784 | #ifdef WOLFIO_DEBUG
|
---|
785 | printf("TCP Connect: %s:%d\n", ip, port);
|
---|
786 | #endif
|
---|
787 |
|
---|
788 | /* use gethostbyname for c99 */
|
---|
789 | #if defined(HAVE_GETADDRINFO) && !defined(WOLF_C99)
|
---|
790 | XMEMSET(&hints, 0, sizeof(hints));
|
---|
791 | hints.ai_family = AF_UNSPEC;
|
---|
792 | hints.ai_socktype = SOCK_STREAM;
|
---|
793 | hints.ai_protocol = IPPROTO_TCP;
|
---|
794 |
|
---|
795 | if (wolfIO_Word16ToString(strPort, port) == 0) {
|
---|
796 | WOLFSSL_MSG("invalid port number for responder");
|
---|
797 | return -1;
|
---|
798 | }
|
---|
799 |
|
---|
800 | if (getaddrinfo(ip, strPort, &hints, &answer) < 0 || answer == NULL) {
|
---|
801 | WOLFSSL_MSG("no addr info for responder");
|
---|
802 | return -1;
|
---|
803 | }
|
---|
804 |
|
---|
805 | sockaddr_len = answer->ai_addrlen;
|
---|
806 | XMEMCPY(&addr, answer->ai_addr, sockaddr_len);
|
---|
807 | freeaddrinfo(answer);
|
---|
808 | #else
|
---|
809 | entry = gethostbyname(ip);
|
---|
810 | sin = (SOCKADDR_IN *)&addr;
|
---|
811 |
|
---|
812 | if (entry) {
|
---|
813 | sin->sin_family = AF_INET;
|
---|
814 | sin->sin_port = XHTONS(port);
|
---|
815 | XMEMCPY(&sin->sin_addr.s_addr, entry->h_addr_list[0], entry->h_length);
|
---|
816 | }
|
---|
817 | else {
|
---|
818 | WOLFSSL_MSG("no addr info for responder");
|
---|
819 | return -1;
|
---|
820 | }
|
---|
821 | #endif
|
---|
822 |
|
---|
823 | *sockfd = (SOCKET_T)socket(addr.ss_family, SOCK_STREAM, 0);
|
---|
824 |
|
---|
825 | #ifdef USE_WINDOWS_API
|
---|
826 | if (*sockfd == INVALID_SOCKET) {
|
---|
827 | WOLFSSL_MSG("bad socket fd, out of fds?");
|
---|
828 | return -1;
|
---|
829 | }
|
---|
830 | #else
|
---|
831 | if (*sockfd < 0) {
|
---|
832 | WOLFSSL_MSG("bad socket fd, out of fds?");
|
---|
833 | return -1;
|
---|
834 | }
|
---|
835 | #endif
|
---|
836 |
|
---|
837 | #ifdef HAVE_IO_TIMEOUT
|
---|
838 | /* if timeout value provided then set socket non-blocking */
|
---|
839 | if (to_sec > 0) {
|
---|
840 | wolfIO_SetBlockingMode(*sockfd, 1);
|
---|
841 | }
|
---|
842 | #else
|
---|
843 | (void)to_sec;
|
---|
844 | #endif
|
---|
845 |
|
---|
846 | ret = connect(*sockfd, (SOCKADDR *)&addr, sockaddr_len);
|
---|
847 | #ifdef HAVE_IO_TIMEOUT
|
---|
848 | if (ret != 0) {
|
---|
849 | if ((errno == EINPROGRESS) && (to_sec > 0)) {
|
---|
850 | /* wait for connect to complete */
|
---|
851 | ret = wolfIO_Select(*sockfd, to_sec);
|
---|
852 |
|
---|
853 | /* restore blocking mode */
|
---|
854 | wolfIO_SetBlockingMode(*sockfd, 0);
|
---|
855 | }
|
---|
856 | }
|
---|
857 | #endif
|
---|
858 | if (ret != 0) {
|
---|
859 | WOLFSSL_MSG("Responder tcp connect failed");
|
---|
860 | return -1;
|
---|
861 | }
|
---|
862 | return ret;
|
---|
863 | #else
|
---|
864 | (void)sockfd;
|
---|
865 | (void)ip;
|
---|
866 | (void)port;
|
---|
867 | (void)to_sec;
|
---|
868 | return -1;
|
---|
869 | #endif /* HAVE_SOCKADDR */
|
---|
870 | }
|
---|
871 |
|
---|
872 | #ifndef HTTP_SCRATCH_BUFFER_SIZE
|
---|
873 | #define HTTP_SCRATCH_BUFFER_SIZE 512
|
---|
874 | #endif
|
---|
875 | #ifndef MAX_URL_ITEM_SIZE
|
---|
876 | #define MAX_URL_ITEM_SIZE 80
|
---|
877 | #endif
|
---|
878 |
|
---|
879 | int wolfIO_DecodeUrl(const char* url, int urlSz, char* outName, char* outPath,
|
---|
880 | word16* outPort)
|
---|
881 | {
|
---|
882 | int result = -1;
|
---|
883 |
|
---|
884 | if (url == NULL || urlSz == 0) {
|
---|
885 | if (outName)
|
---|
886 | *outName = 0;
|
---|
887 | if (outPath)
|
---|
888 | *outPath = 0;
|
---|
889 | if (outPort)
|
---|
890 | *outPort = 0;
|
---|
891 | }
|
---|
892 | else {
|
---|
893 | int i, cur;
|
---|
894 |
|
---|
895 | /* need to break the url down into scheme, address, and port */
|
---|
896 | /* "http://example.com:8080/" */
|
---|
897 | /* "http://[::1]:443/" */
|
---|
898 | if (XSTRNCMP(url, "http://", 7) == 0) {
|
---|
899 | cur = 7;
|
---|
900 | } else cur = 0;
|
---|
901 |
|
---|
902 | i = 0;
|
---|
903 | if (url[cur] == '[') {
|
---|
904 | cur++;
|
---|
905 | /* copy until ']' */
|
---|
906 | while (i < MAX_URL_ITEM_SIZE-1 && cur < urlSz && url[cur] != 0 &&
|
---|
907 | url[cur] != ']') {
|
---|
908 | if (outName)
|
---|
909 | outName[i] = url[cur];
|
---|
910 | i++; cur++;
|
---|
911 | }
|
---|
912 | cur++; /* skip ']' */
|
---|
913 | }
|
---|
914 | else {
|
---|
915 | while (i < MAX_URL_ITEM_SIZE-1 && cur < urlSz && url[cur] != 0 &&
|
---|
916 | url[cur] != ':' && url[cur] != '/') {
|
---|
917 | if (outName)
|
---|
918 | outName[i] = url[cur];
|
---|
919 | i++; cur++;
|
---|
920 | }
|
---|
921 | }
|
---|
922 | if (outName)
|
---|
923 | outName[i] = 0;
|
---|
924 | /* Need to pick out the path after the domain name */
|
---|
925 |
|
---|
926 | if (cur < urlSz && url[cur] == ':') {
|
---|
927 | char port[6];
|
---|
928 | int j;
|
---|
929 | word32 bigPort = 0;
|
---|
930 | i = 0;
|
---|
931 | cur++;
|
---|
932 | while (i < 6 && cur < urlSz && url[cur] != 0 && url[cur] != '/') {
|
---|
933 | port[i] = url[cur];
|
---|
934 | i++; cur++;
|
---|
935 | }
|
---|
936 |
|
---|
937 | for (j = 0; j < i; j++) {
|
---|
938 | if (port[j] < '0' || port[j] > '9') return -1;
|
---|
939 | bigPort = (bigPort * 10) + (port[j] - '0');
|
---|
940 | }
|
---|
941 | if (outPort)
|
---|
942 | *outPort = (word16)bigPort;
|
---|
943 | }
|
---|
944 | else if (outPort)
|
---|
945 | *outPort = 80;
|
---|
946 |
|
---|
947 |
|
---|
948 | if (cur < urlSz && url[cur] == '/') {
|
---|
949 | i = 0;
|
---|
950 | while (i < MAX_URL_ITEM_SIZE-1 && cur < urlSz && url[cur] != 0) {
|
---|
951 | if (outPath)
|
---|
952 | outPath[i] = url[cur];
|
---|
953 | i++; cur++;
|
---|
954 | }
|
---|
955 | if (outPath)
|
---|
956 | outPath[i] = 0;
|
---|
957 | }
|
---|
958 | else if (outPath) {
|
---|
959 | outPath[0] = '/';
|
---|
960 | outPath[1] = 0;
|
---|
961 | }
|
---|
962 |
|
---|
963 | result = 0;
|
---|
964 | }
|
---|
965 |
|
---|
966 | return result;
|
---|
967 | }
|
---|
968 |
|
---|
969 | static int wolfIO_HttpProcessResponseBuf(int sfd, byte **recvBuf,
|
---|
970 | int* recvBufSz, int chunkSz, char* start, int len, int dynType, void* heap)
|
---|
971 | {
|
---|
972 | byte* newRecvBuf = NULL;
|
---|
973 | int newRecvSz = *recvBufSz + chunkSz;
|
---|
974 | int pos = 0;
|
---|
975 |
|
---|
976 | WOLFSSL_MSG("Processing HTTP response");
|
---|
977 | #ifdef WOLFIO_DEBUG
|
---|
978 | printf("HTTP Chunk %d->%d\n", *recvBufSz, chunkSz);
|
---|
979 | #endif
|
---|
980 |
|
---|
981 | (void)heap;
|
---|
982 | (void)dynType;
|
---|
983 |
|
---|
984 | if (chunkSz < 0 || len < 0) {
|
---|
985 | WOLFSSL_MSG("wolfIO_HttpProcessResponseBuf invalid chunk or length size");
|
---|
986 | return MEMORY_E;
|
---|
987 | }
|
---|
988 |
|
---|
989 | if (newRecvSz <= 0) {
|
---|
990 | WOLFSSL_MSG("wolfIO_HttpProcessResponseBuf new receive size overflow");
|
---|
991 | return MEMORY_E;
|
---|
992 | }
|
---|
993 |
|
---|
994 | newRecvBuf = (byte*)XMALLOC(newRecvSz, heap, dynType);
|
---|
995 | if (newRecvBuf == NULL) {
|
---|
996 | WOLFSSL_MSG("wolfIO_HttpProcessResponseBuf malloc failed");
|
---|
997 | return MEMORY_E;
|
---|
998 | }
|
---|
999 |
|
---|
1000 | /* if buffer already exists, then we are growing it */
|
---|
1001 | if (*recvBuf) {
|
---|
1002 | XMEMCPY(&newRecvBuf[pos], *recvBuf, *recvBufSz);
|
---|
1003 | XFREE(*recvBuf, heap, dynType);
|
---|
1004 | pos += *recvBufSz;
|
---|
1005 | *recvBuf = NULL;
|
---|
1006 | }
|
---|
1007 |
|
---|
1008 | /* copy the remainder of the httpBuf into the respBuf */
|
---|
1009 | if (len != 0) {
|
---|
1010 | if (pos + len <= newRecvSz) {
|
---|
1011 | XMEMCPY(&newRecvBuf[pos], start, len);
|
---|
1012 | pos += len;
|
---|
1013 | }
|
---|
1014 | else {
|
---|
1015 | WOLFSSL_MSG("wolfIO_HttpProcessResponseBuf bad size");
|
---|
1016 | XFREE(newRecvBuf, heap, dynType);
|
---|
1017 | return -1;
|
---|
1018 | }
|
---|
1019 | }
|
---|
1020 |
|
---|
1021 | /* receive the remainder of chunk */
|
---|
1022 | while (len < chunkSz) {
|
---|
1023 | int rxSz = wolfIO_Recv(sfd, (char*)&newRecvBuf[pos], chunkSz-len, 0);
|
---|
1024 | if (rxSz > 0) {
|
---|
1025 | len += rxSz;
|
---|
1026 | pos += rxSz;
|
---|
1027 | }
|
---|
1028 | else {
|
---|
1029 | WOLFSSL_MSG("wolfIO_HttpProcessResponseBuf recv failed");
|
---|
1030 | XFREE(newRecvBuf, heap, dynType);
|
---|
1031 | return -1;
|
---|
1032 | }
|
---|
1033 | }
|
---|
1034 |
|
---|
1035 | *recvBuf = newRecvBuf;
|
---|
1036 | *recvBufSz = newRecvSz;
|
---|
1037 |
|
---|
1038 | return 0;
|
---|
1039 | }
|
---|
1040 |
|
---|
1041 | int wolfIO_HttpProcessResponse(int sfd, const char** appStrList,
|
---|
1042 | byte** respBuf, byte* httpBuf, int httpBufSz, int dynType, void* heap)
|
---|
1043 | {
|
---|
1044 | int result = 0;
|
---|
1045 | int len = 0;
|
---|
1046 | char *start, *end;
|
---|
1047 | int respBufSz = 0;
|
---|
1048 | int isChunked = 0, chunkSz = 0;
|
---|
1049 | enum phr_state { phr_init, phr_http_start, phr_have_length, phr_have_type,
|
---|
1050 | phr_wait_end, phr_get_chunk_len, phr_get_chunk_data,
|
---|
1051 | phr_http_end
|
---|
1052 | } state = phr_init;
|
---|
1053 |
|
---|
1054 | *respBuf = NULL;
|
---|
1055 | start = end = NULL;
|
---|
1056 | do {
|
---|
1057 | if (state == phr_get_chunk_data) {
|
---|
1058 | /* get chunk of data */
|
---|
1059 | result = wolfIO_HttpProcessResponseBuf(sfd, respBuf, &respBufSz,
|
---|
1060 | chunkSz, start, len, dynType, heap);
|
---|
1061 |
|
---|
1062 | state = (result != 0) ? phr_http_end : phr_get_chunk_len;
|
---|
1063 | end = NULL;
|
---|
1064 | len = 0;
|
---|
1065 | }
|
---|
1066 |
|
---|
1067 | /* read data if no \r\n or first time */
|
---|
1068 | if (end == NULL) {
|
---|
1069 | result = wolfIO_Recv(sfd, (char*)httpBuf+len, httpBufSz-len-1, 0);
|
---|
1070 | if (result > 0) {
|
---|
1071 | len += result;
|
---|
1072 | start = (char*)httpBuf;
|
---|
1073 | start[len] = 0;
|
---|
1074 | }
|
---|
1075 | else {
|
---|
1076 | WOLFSSL_MSG("wolfIO_HttpProcessResponse recv http from peer failed");
|
---|
1077 | return -1;
|
---|
1078 | }
|
---|
1079 | }
|
---|
1080 | end = XSTRSTR(start, "\r\n"); /* locate end */
|
---|
1081 |
|
---|
1082 | /* handle incomplete rx */
|
---|
1083 | if (end == NULL) {
|
---|
1084 | if (len != 0)
|
---|
1085 | XMEMMOVE(httpBuf, start, len);
|
---|
1086 | start = end = NULL;
|
---|
1087 | }
|
---|
1088 | /* when start is "\r\n" */
|
---|
1089 | else if (end == start) {
|
---|
1090 | /* if waiting for end or need chunk len */
|
---|
1091 | if (state == phr_wait_end || state == phr_get_chunk_len) {
|
---|
1092 | state = (isChunked) ? phr_get_chunk_len : phr_http_end;
|
---|
1093 | len -= 2; start += 2; /* skip \r\n */
|
---|
1094 | }
|
---|
1095 | else {
|
---|
1096 | WOLFSSL_MSG("wolfIO_HttpProcessResponse header ended early");
|
---|
1097 | return -1;
|
---|
1098 | }
|
---|
1099 | }
|
---|
1100 | else {
|
---|
1101 | *end = 0; /* null terminate */
|
---|
1102 | len -= (int)(end - start) + 2;
|
---|
1103 | /* adjust len to remove the first line including the /r/n */
|
---|
1104 |
|
---|
1105 | #ifdef WOLFIO_DEBUG
|
---|
1106 | printf("HTTP Resp: %s\n", start);
|
---|
1107 | #endif
|
---|
1108 |
|
---|
1109 | switch (state) {
|
---|
1110 | case phr_init:
|
---|
1111 | if (XSTRLEN(start) < 15) { /* 15 is the length of the two
|
---|
1112 | constant strings we're about to
|
---|
1113 | compare against. */
|
---|
1114 | WOLFSSL_MSG("wolfIO_HttpProcessResponse HTTP header too short.");
|
---|
1115 | return -1;
|
---|
1116 | }
|
---|
1117 | if (XSTRNCASECMP(start, "HTTP/1", 6) == 0) {
|
---|
1118 | start += 9;
|
---|
1119 | if (XSTRNCASECMP(start, "200 OK", 6) != 0) {
|
---|
1120 | WOLFSSL_MSG("wolfIO_HttpProcessResponse not OK");
|
---|
1121 | return -1;
|
---|
1122 | }
|
---|
1123 | state = phr_http_start;
|
---|
1124 | }
|
---|
1125 | break;
|
---|
1126 | case phr_http_start:
|
---|
1127 | case phr_have_length:
|
---|
1128 | case phr_have_type:
|
---|
1129 | if (XSTRLEN(start) < 13) { /* 13 is the shortest of the following
|
---|
1130 | next lines we're checking for. */
|
---|
1131 | WOLFSSL_MSG("wolfIO_HttpProcessResponse content type is too short.");
|
---|
1132 | return -1;
|
---|
1133 | }
|
---|
1134 |
|
---|
1135 | if (XSTRNCASECMP(start, "Content-Type:", 13) == 0) {
|
---|
1136 | int i;
|
---|
1137 |
|
---|
1138 | start += 13;
|
---|
1139 | while (*start == ' ') start++;
|
---|
1140 |
|
---|
1141 | /* try and match against appStrList */
|
---|
1142 | i = 0;
|
---|
1143 | while (appStrList[i] != NULL) {
|
---|
1144 | if (XSTRNCASECMP(start, appStrList[i],
|
---|
1145 | XSTRLEN(appStrList[i])) == 0) {
|
---|
1146 | break;
|
---|
1147 | }
|
---|
1148 | i++;
|
---|
1149 | }
|
---|
1150 | if (appStrList[i] == NULL) {
|
---|
1151 | WOLFSSL_MSG("wolfIO_HttpProcessResponse appstr mismatch");
|
---|
1152 | return -1;
|
---|
1153 | }
|
---|
1154 | state = (state == phr_http_start) ? phr_have_type : phr_wait_end;
|
---|
1155 | }
|
---|
1156 | else if (XSTRNCASECMP(start, "Content-Length:", 15) == 0) {
|
---|
1157 | start += 15;
|
---|
1158 | while (*start == ' ') start++;
|
---|
1159 | chunkSz = XATOI(start);
|
---|
1160 | state = (state == phr_http_start) ? phr_have_length : phr_wait_end;
|
---|
1161 | }
|
---|
1162 | else if (XSTRNCASECMP(start, "Transfer-Encoding:", 18) == 0) {
|
---|
1163 | start += 18;
|
---|
1164 | while (*start == ' ') start++;
|
---|
1165 | if (XSTRNCASECMP(start, "chunked", 7) == 0) {
|
---|
1166 | isChunked = 1;
|
---|
1167 | state = (state == phr_http_start) ? phr_have_length : phr_wait_end;
|
---|
1168 | }
|
---|
1169 | }
|
---|
1170 | break;
|
---|
1171 | case phr_get_chunk_len:
|
---|
1172 | chunkSz = (int)strtol(start, NULL, 16); /* hex format */
|
---|
1173 | state = (chunkSz == 0) ? phr_http_end : phr_get_chunk_data;
|
---|
1174 | break;
|
---|
1175 | case phr_get_chunk_data:
|
---|
1176 | /* processing for chunk data done above, since \r\n isn't required */
|
---|
1177 | case phr_wait_end:
|
---|
1178 | case phr_http_end:
|
---|
1179 | /* do nothing */
|
---|
1180 | break;
|
---|
1181 | } /* switch (state) */
|
---|
1182 |
|
---|
1183 | /* skip to end plus \r\n */
|
---|
1184 | start = end + 2;
|
---|
1185 | }
|
---|
1186 | } while (state != phr_http_end);
|
---|
1187 |
|
---|
1188 | if (!isChunked) {
|
---|
1189 | result = wolfIO_HttpProcessResponseBuf(sfd, respBuf, &respBufSz, chunkSz,
|
---|
1190 | start, len, dynType, heap);
|
---|
1191 | }
|
---|
1192 |
|
---|
1193 | if (result >= 0) {
|
---|
1194 | result = respBufSz;
|
---|
1195 | }
|
---|
1196 | else {
|
---|
1197 | WOLFSSL_ERROR(result);
|
---|
1198 | }
|
---|
1199 |
|
---|
1200 | return result;
|
---|
1201 | }
|
---|
1202 | int wolfIO_HttpBuildRequest(const char *reqType, const char *domainName,
|
---|
1203 | const char *path, int pathLen, int reqSz, const char *contentType,
|
---|
1204 | byte *buf, int bufSize)
|
---|
1205 | {
|
---|
1206 | return wolfIO_HttpBuildRequest_ex(reqType, domainName, path, pathLen, reqSz, contentType, "", buf, bufSize);
|
---|
1207 | }
|
---|
1208 |
|
---|
1209 | int wolfIO_HttpBuildRequest_ex(const char *reqType, const char *domainName,
|
---|
1210 | const char *path, int pathLen, int reqSz, const char *contentType,
|
---|
1211 | const char *exHdrs, byte *buf, int bufSize)
|
---|
1212 | {
|
---|
1213 | word32 reqTypeLen, domainNameLen, reqSzStrLen, contentTypeLen, exHdrsLen, maxLen;
|
---|
1214 | char reqSzStr[6];
|
---|
1215 | char* req = (char*)buf;
|
---|
1216 | const char* blankStr = " ";
|
---|
1217 | const char* http11Str = " HTTP/1.1";
|
---|
1218 | const char* hostStr = "\r\nHost: ";
|
---|
1219 | const char* contentLenStr = "\r\nContent-Length: ";
|
---|
1220 | const char* contentTypeStr = "\r\nContent-Type: ";
|
---|
1221 | const char* singleCrLfStr = "\r\n";
|
---|
1222 | const char* doubleCrLfStr = "\r\n\r\n";
|
---|
1223 | word32 blankStrLen, http11StrLen, hostStrLen, contentLenStrLen,
|
---|
1224 | contentTypeStrLen, singleCrLfStrLen, doubleCrLfStrLen;
|
---|
1225 |
|
---|
1226 | reqTypeLen = (word32)XSTRLEN(reqType);
|
---|
1227 | domainNameLen = (word32)XSTRLEN(domainName);
|
---|
1228 | reqSzStrLen = wolfIO_Word16ToString(reqSzStr, (word16)reqSz);
|
---|
1229 | contentTypeLen = (word32)XSTRLEN(contentType);
|
---|
1230 |
|
---|
1231 | blankStrLen = (word32)XSTRLEN(blankStr);
|
---|
1232 | http11StrLen = (word32)XSTRLEN(http11Str);
|
---|
1233 | hostStrLen = (word32)XSTRLEN(hostStr);
|
---|
1234 | contentLenStrLen = (word32)XSTRLEN(contentLenStr);
|
---|
1235 | contentTypeStrLen = (word32)XSTRLEN(contentTypeStr);
|
---|
1236 |
|
---|
1237 | if(exHdrs){
|
---|
1238 | singleCrLfStrLen = (word32)XSTRLEN(singleCrLfStr);
|
---|
1239 | exHdrsLen = (word32)XSTRLEN(exHdrs);
|
---|
1240 | } else {
|
---|
1241 | singleCrLfStrLen = 0;
|
---|
1242 | exHdrsLen = 0;
|
---|
1243 | }
|
---|
1244 |
|
---|
1245 | doubleCrLfStrLen = (word32)XSTRLEN(doubleCrLfStr);
|
---|
1246 |
|
---|
1247 | /* determine max length and check it */
|
---|
1248 | maxLen =
|
---|
1249 | reqTypeLen +
|
---|
1250 | blankStrLen +
|
---|
1251 | pathLen +
|
---|
1252 | http11StrLen +
|
---|
1253 | hostStrLen +
|
---|
1254 | domainNameLen +
|
---|
1255 | contentLenStrLen +
|
---|
1256 | reqSzStrLen +
|
---|
1257 | contentTypeStrLen +
|
---|
1258 | contentTypeLen +
|
---|
1259 | singleCrLfStrLen +
|
---|
1260 | exHdrsLen +
|
---|
1261 | doubleCrLfStrLen +
|
---|
1262 | 1 /* null term */;
|
---|
1263 | if (maxLen > (word32)bufSize)
|
---|
1264 | return 0;
|
---|
1265 |
|
---|
1266 | XSTRNCPY((char*)buf, reqType, bufSize);
|
---|
1267 | buf += reqTypeLen; bufSize -= reqTypeLen;
|
---|
1268 | XSTRNCPY((char*)buf, blankStr, bufSize);
|
---|
1269 | buf += blankStrLen; bufSize -= blankStrLen;
|
---|
1270 | XSTRNCPY((char*)buf, path, bufSize);
|
---|
1271 | buf += pathLen; bufSize -= pathLen;
|
---|
1272 | XSTRNCPY((char*)buf, http11Str, bufSize);
|
---|
1273 | buf += http11StrLen; bufSize -= http11StrLen;
|
---|
1274 | if (domainNameLen > 0) {
|
---|
1275 | XSTRNCPY((char*)buf, hostStr, bufSize);
|
---|
1276 | buf += hostStrLen; bufSize -= hostStrLen;
|
---|
1277 | XSTRNCPY((char*)buf, domainName, bufSize);
|
---|
1278 | buf += domainNameLen; bufSize -= domainNameLen;
|
---|
1279 | }
|
---|
1280 | if (reqSz > 0 && reqSzStrLen > 0) {
|
---|
1281 | XSTRNCPY((char*)buf, contentLenStr, bufSize);
|
---|
1282 | buf += contentLenStrLen; bufSize -= contentLenStrLen;
|
---|
1283 | XSTRNCPY((char*)buf, reqSzStr, bufSize);
|
---|
1284 | buf += reqSzStrLen; bufSize -= reqSzStrLen;
|
---|
1285 | }
|
---|
1286 | if (contentTypeLen > 0) {
|
---|
1287 | XSTRNCPY((char*)buf, contentTypeStr, bufSize);
|
---|
1288 | buf += contentTypeStrLen; bufSize -= contentTypeStrLen;
|
---|
1289 | XSTRNCPY((char*)buf, contentType, bufSize);
|
---|
1290 | buf += contentTypeLen; bufSize -= contentTypeLen;
|
---|
1291 | }
|
---|
1292 | if (exHdrsLen > 0)
|
---|
1293 | {
|
---|
1294 | XSTRNCPY((char *)buf, singleCrLfStr, bufSize);
|
---|
1295 | buf += singleCrLfStrLen;
|
---|
1296 | bufSize -= singleCrLfStrLen;
|
---|
1297 | XSTRNCPY((char *)buf, exHdrs, bufSize);
|
---|
1298 | buf += exHdrsLen;
|
---|
1299 | bufSize -= exHdrsLen;
|
---|
1300 | }
|
---|
1301 | XSTRNCPY((char*)buf, doubleCrLfStr, bufSize);
|
---|
1302 | buf += doubleCrLfStrLen;
|
---|
1303 |
|
---|
1304 | #ifdef WOLFIO_DEBUG
|
---|
1305 | printf("HTTP %s: %s", reqType, req);
|
---|
1306 | #endif
|
---|
1307 |
|
---|
1308 | /* calculate actual length based on original and new pointer */
|
---|
1309 | return (int)((char*)buf - req);
|
---|
1310 | }
|
---|
1311 |
|
---|
1312 |
|
---|
1313 | #ifdef HAVE_OCSP
|
---|
1314 |
|
---|
1315 | int wolfIO_HttpBuildRequestOcsp(const char* domainName, const char* path,
|
---|
1316 | int ocspReqSz, byte* buf, int bufSize)
|
---|
1317 | {
|
---|
1318 | const char *cacheCtl = "Cache-Control: no-cache";
|
---|
1319 | return wolfIO_HttpBuildRequest_ex("POST", domainName, path, (int)XSTRLEN(path),
|
---|
1320 | ocspReqSz, "application/ocsp-request", cacheCtl, buf, bufSize);
|
---|
1321 | }
|
---|
1322 |
|
---|
1323 | /* return: >0 OCSP Response Size
|
---|
1324 | * -1 error */
|
---|
1325 | int wolfIO_HttpProcessResponseOcsp(int sfd, byte** respBuf,
|
---|
1326 | byte* httpBuf, int httpBufSz, void* heap)
|
---|
1327 | {
|
---|
1328 | const char* appStrList[] = {
|
---|
1329 | "application/ocsp-response",
|
---|
1330 | NULL
|
---|
1331 | };
|
---|
1332 |
|
---|
1333 | return wolfIO_HttpProcessResponse(sfd, appStrList,
|
---|
1334 | respBuf, httpBuf, httpBufSz, DYNAMIC_TYPE_OCSP, heap);
|
---|
1335 | }
|
---|
1336 |
|
---|
1337 | /* in default wolfSSL callback ctx is the heap pointer */
|
---|
1338 | int EmbedOcspLookup(void* ctx, const char* url, int urlSz,
|
---|
1339 | byte* ocspReqBuf, int ocspReqSz, byte** ocspRespBuf)
|
---|
1340 | {
|
---|
1341 | SOCKET_T sfd = 0;
|
---|
1342 | word16 port;
|
---|
1343 | int ret = -1;
|
---|
1344 | #ifdef WOLFSSL_SMALL_STACK
|
---|
1345 | char* path;
|
---|
1346 | char* domainName;
|
---|
1347 | #else
|
---|
1348 | char path[MAX_URL_ITEM_SIZE];
|
---|
1349 | char domainName[MAX_URL_ITEM_SIZE];
|
---|
1350 | #endif
|
---|
1351 |
|
---|
1352 | #ifdef WOLFSSL_SMALL_STACK
|
---|
1353 | path = (char*)XMALLOC(MAX_URL_ITEM_SIZE, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
1354 | if (path == NULL)
|
---|
1355 | return MEMORY_E;
|
---|
1356 |
|
---|
1357 | domainName = (char*)XMALLOC(MAX_URL_ITEM_SIZE, NULL,
|
---|
1358 | DYNAMIC_TYPE_TMP_BUFFER);
|
---|
1359 | if (domainName == NULL) {
|
---|
1360 | XFREE(path, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
1361 | return MEMORY_E;
|
---|
1362 | }
|
---|
1363 | #endif
|
---|
1364 |
|
---|
1365 | if (ocspReqBuf == NULL || ocspReqSz == 0) {
|
---|
1366 | WOLFSSL_MSG("OCSP request is required for lookup");
|
---|
1367 | }
|
---|
1368 | else if (ocspRespBuf == NULL) {
|
---|
1369 | WOLFSSL_MSG("Cannot save OCSP response");
|
---|
1370 | }
|
---|
1371 | else if (wolfIO_DecodeUrl(url, urlSz, domainName, path, &port) < 0) {
|
---|
1372 | WOLFSSL_MSG("Unable to decode OCSP URL");
|
---|
1373 | }
|
---|
1374 | else {
|
---|
1375 | /* Note, the library uses the EmbedOcspRespFree() callback to
|
---|
1376 | * free this buffer. */
|
---|
1377 | int httpBufSz = HTTP_SCRATCH_BUFFER_SIZE;
|
---|
1378 | byte* httpBuf = (byte*)XMALLOC(httpBufSz, ctx, DYNAMIC_TYPE_OCSP);
|
---|
1379 |
|
---|
1380 | if (httpBuf == NULL) {
|
---|
1381 | WOLFSSL_MSG("Unable to create OCSP response buffer");
|
---|
1382 | }
|
---|
1383 | else {
|
---|
1384 | httpBufSz = wolfIO_HttpBuildRequestOcsp(domainName, path, ocspReqSz,
|
---|
1385 | httpBuf, httpBufSz);
|
---|
1386 |
|
---|
1387 | ret = wolfIO_TcpConnect(&sfd, domainName, port, io_timeout_sec);
|
---|
1388 | if ((ret != 0) || ((int)sfd < 0)) {
|
---|
1389 | WOLFSSL_MSG("OCSP Responder connection failed");
|
---|
1390 | }
|
---|
1391 | else if (wolfIO_Send(sfd, (char*)httpBuf, httpBufSz, 0) !=
|
---|
1392 | httpBufSz) {
|
---|
1393 | WOLFSSL_MSG("OCSP http request failed");
|
---|
1394 | }
|
---|
1395 | else if (wolfIO_Send(sfd, (char*)ocspReqBuf, ocspReqSz, 0) !=
|
---|
1396 | ocspReqSz) {
|
---|
1397 | WOLFSSL_MSG("OCSP ocsp request failed");
|
---|
1398 | }
|
---|
1399 | else {
|
---|
1400 | ret = wolfIO_HttpProcessResponseOcsp(sfd, ocspRespBuf, httpBuf,
|
---|
1401 | HTTP_SCRATCH_BUFFER_SIZE, ctx);
|
---|
1402 | }
|
---|
1403 |
|
---|
1404 | CloseSocket(sfd);
|
---|
1405 | XFREE(httpBuf, ctx, DYNAMIC_TYPE_OCSP);
|
---|
1406 | }
|
---|
1407 | }
|
---|
1408 |
|
---|
1409 | #ifdef WOLFSSL_SMALL_STACK
|
---|
1410 | XFREE(path, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
1411 | XFREE(domainName, NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
1412 | #endif
|
---|
1413 |
|
---|
1414 | return ret;
|
---|
1415 | }
|
---|
1416 |
|
---|
1417 | /* in default callback ctx is heap hint */
|
---|
1418 | void EmbedOcspRespFree(void* ctx, byte *resp)
|
---|
1419 | {
|
---|
1420 | if (resp)
|
---|
1421 | XFREE(resp, ctx, DYNAMIC_TYPE_OCSP);
|
---|
1422 |
|
---|
1423 | (void)ctx;
|
---|
1424 | }
|
---|
1425 | #endif /* HAVE_OCSP */
|
---|
1426 |
|
---|
1427 |
|
---|
1428 | #if defined(HAVE_CRL) && defined(HAVE_CRL_IO)
|
---|
1429 |
|
---|
1430 | int wolfIO_HttpBuildRequestCrl(const char* url, int urlSz,
|
---|
1431 | const char* domainName, byte* buf, int bufSize)
|
---|
1432 | {
|
---|
1433 | const char *cacheCtl = "Cache-Control: no-cache";
|
---|
1434 | return wolfIO_HttpBuildRequest_ex("GET", domainName, url, urlSz, 0, "",
|
---|
1435 | cacheCtl, buf, bufSize);
|
---|
1436 | }
|
---|
1437 |
|
---|
1438 | int wolfIO_HttpProcessResponseCrl(WOLFSSL_CRL* crl, int sfd, byte* httpBuf,
|
---|
1439 | int httpBufSz)
|
---|
1440 | {
|
---|
1441 | int result;
|
---|
1442 | byte *respBuf = NULL;
|
---|
1443 |
|
---|
1444 | const char* appStrList[] = {
|
---|
1445 | "application/pkix-crl",
|
---|
1446 | "application/x-pkcs7-crl",
|
---|
1447 | NULL
|
---|
1448 | };
|
---|
1449 |
|
---|
1450 | result = wolfIO_HttpProcessResponse(sfd, appStrList,
|
---|
1451 | &respBuf, httpBuf, httpBufSz, DYNAMIC_TYPE_CRL, crl->heap);
|
---|
1452 | if (result >= 0) {
|
---|
1453 | result = BufferLoadCRL(crl, respBuf, result, WOLFSSL_FILETYPE_ASN1, 0);
|
---|
1454 | }
|
---|
1455 | XFREE(respBuf, crl->heap, DYNAMIC_TYPE_CRL);
|
---|
1456 |
|
---|
1457 | return result;
|
---|
1458 | }
|
---|
1459 |
|
---|
1460 | int EmbedCrlLookup(WOLFSSL_CRL* crl, const char* url, int urlSz)
|
---|
1461 | {
|
---|
1462 | SOCKET_T sfd = 0;
|
---|
1463 | word16 port;
|
---|
1464 | int ret = -1;
|
---|
1465 | #ifdef WOLFSSL_SMALL_STACK
|
---|
1466 | char* domainName;
|
---|
1467 | #else
|
---|
1468 | char domainName[MAX_URL_ITEM_SIZE];
|
---|
1469 | #endif
|
---|
1470 |
|
---|
1471 | #ifdef WOLFSSL_SMALL_STACK
|
---|
1472 | domainName = (char*)XMALLOC(MAX_URL_ITEM_SIZE, crl->heap,
|
---|
1473 | DYNAMIC_TYPE_TMP_BUFFER);
|
---|
1474 | if (domainName == NULL) {
|
---|
1475 | return MEMORY_E;
|
---|
1476 | }
|
---|
1477 | #endif
|
---|
1478 |
|
---|
1479 | if (wolfIO_DecodeUrl(url, urlSz, domainName, NULL, &port) < 0) {
|
---|
1480 | WOLFSSL_MSG("Unable to decode CRL URL");
|
---|
1481 | }
|
---|
1482 | else {
|
---|
1483 | int httpBufSz = HTTP_SCRATCH_BUFFER_SIZE;
|
---|
1484 | byte* httpBuf = (byte*)XMALLOC(httpBufSz, crl->heap,
|
---|
1485 | DYNAMIC_TYPE_CRL);
|
---|
1486 | if (httpBuf == NULL) {
|
---|
1487 | WOLFSSL_MSG("Unable to create CRL response buffer");
|
---|
1488 | }
|
---|
1489 | else {
|
---|
1490 | httpBufSz = wolfIO_HttpBuildRequestCrl(url, urlSz, domainName,
|
---|
1491 | httpBuf, httpBufSz);
|
---|
1492 |
|
---|
1493 | ret = wolfIO_TcpConnect(&sfd, domainName, port, io_timeout_sec);
|
---|
1494 | if ((ret != 0) || (sfd < 0)) {
|
---|
1495 | WOLFSSL_MSG("CRL connection failed");
|
---|
1496 | }
|
---|
1497 | else if (wolfIO_Send(sfd, (char*)httpBuf, httpBufSz, 0)
|
---|
1498 | != httpBufSz) {
|
---|
1499 | WOLFSSL_MSG("CRL http get failed");
|
---|
1500 | }
|
---|
1501 | else {
|
---|
1502 | ret = wolfIO_HttpProcessResponseCrl(crl, sfd, httpBuf,
|
---|
1503 | HTTP_SCRATCH_BUFFER_SIZE);
|
---|
1504 | }
|
---|
1505 |
|
---|
1506 | CloseSocket(sfd);
|
---|
1507 | XFREE(httpBuf, crl->heap, DYNAMIC_TYPE_CRL);
|
---|
1508 | }
|
---|
1509 | }
|
---|
1510 |
|
---|
1511 | #ifdef WOLFSSL_SMALL_STACK
|
---|
1512 | XFREE(domainName, crl->heap, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
1513 | #endif
|
---|
1514 |
|
---|
1515 | return ret;
|
---|
1516 | }
|
---|
1517 | #endif /* HAVE_CRL && HAVE_CRL_IO */
|
---|
1518 |
|
---|
1519 | #endif /* HAVE_HTTP_CLIENT */
|
---|
1520 |
|
---|
1521 |
|
---|
1522 |
|
---|
1523 | void wolfSSL_CTX_SetIORecv(WOLFSSL_CTX *ctx, CallbackIORecv CBIORecv)
|
---|
1524 | {
|
---|
1525 | if (ctx) {
|
---|
1526 | ctx->CBIORecv = CBIORecv;
|
---|
1527 | #ifdef OPENSSL_EXTRA
|
---|
1528 | ctx->cbioFlag |= WOLFSSL_CBIO_RECV;
|
---|
1529 | #endif
|
---|
1530 | }
|
---|
1531 | }
|
---|
1532 |
|
---|
1533 |
|
---|
1534 | void wolfSSL_CTX_SetIOSend(WOLFSSL_CTX *ctx, CallbackIOSend CBIOSend)
|
---|
1535 | {
|
---|
1536 | if (ctx) {
|
---|
1537 | ctx->CBIOSend = CBIOSend;
|
---|
1538 | #ifdef OPENSSL_EXTRA
|
---|
1539 | ctx->cbioFlag |= WOLFSSL_CBIO_SEND;
|
---|
1540 | #endif
|
---|
1541 | }
|
---|
1542 | }
|
---|
1543 |
|
---|
1544 |
|
---|
1545 | /* sets the IO callback to use for receives at WOLFSSL level */
|
---|
1546 | void wolfSSL_SSLSetIORecv(WOLFSSL *ssl, CallbackIORecv CBIORecv)
|
---|
1547 | {
|
---|
1548 | if (ssl) {
|
---|
1549 | ssl->CBIORecv = CBIORecv;
|
---|
1550 | #ifdef OPENSSL_EXTRA
|
---|
1551 | ssl->cbioFlag |= WOLFSSL_CBIO_RECV;
|
---|
1552 | #endif
|
---|
1553 | }
|
---|
1554 | }
|
---|
1555 |
|
---|
1556 |
|
---|
1557 | /* sets the IO callback to use for sends at WOLFSSL level */
|
---|
1558 | void wolfSSL_SSLSetIOSend(WOLFSSL *ssl, CallbackIOSend CBIOSend)
|
---|
1559 | {
|
---|
1560 | if (ssl) {
|
---|
1561 | ssl->CBIOSend = CBIOSend;
|
---|
1562 | #ifdef OPENSSL_EXTRA
|
---|
1563 | ssl->cbioFlag |= WOLFSSL_CBIO_SEND;
|
---|
1564 | #endif
|
---|
1565 | }
|
---|
1566 | }
|
---|
1567 |
|
---|
1568 |
|
---|
1569 | void wolfSSL_SetIOReadCtx(WOLFSSL* ssl, void *rctx)
|
---|
1570 | {
|
---|
1571 | if (ssl)
|
---|
1572 | ssl->IOCB_ReadCtx = rctx;
|
---|
1573 | }
|
---|
1574 |
|
---|
1575 |
|
---|
1576 | void wolfSSL_SetIOWriteCtx(WOLFSSL* ssl, void *wctx)
|
---|
1577 | {
|
---|
1578 | if (ssl)
|
---|
1579 | ssl->IOCB_WriteCtx = wctx;
|
---|
1580 | }
|
---|
1581 |
|
---|
1582 |
|
---|
1583 | void* wolfSSL_GetIOReadCtx(WOLFSSL* ssl)
|
---|
1584 | {
|
---|
1585 | if (ssl)
|
---|
1586 | return ssl->IOCB_ReadCtx;
|
---|
1587 |
|
---|
1588 | return NULL;
|
---|
1589 | }
|
---|
1590 |
|
---|
1591 |
|
---|
1592 | void* wolfSSL_GetIOWriteCtx(WOLFSSL* ssl)
|
---|
1593 | {
|
---|
1594 | if (ssl)
|
---|
1595 | return ssl->IOCB_WriteCtx;
|
---|
1596 |
|
---|
1597 | return NULL;
|
---|
1598 | }
|
---|
1599 |
|
---|
1600 |
|
---|
1601 | void wolfSSL_SetIOReadFlags(WOLFSSL* ssl, int flags)
|
---|
1602 | {
|
---|
1603 | if (ssl)
|
---|
1604 | ssl->rflags = flags;
|
---|
1605 | }
|
---|
1606 |
|
---|
1607 |
|
---|
1608 | void wolfSSL_SetIOWriteFlags(WOLFSSL* ssl, int flags)
|
---|
1609 | {
|
---|
1610 | if (ssl)
|
---|
1611 | ssl->wflags = flags;
|
---|
1612 | }
|
---|
1613 |
|
---|
1614 |
|
---|
1615 | #ifdef WOLFSSL_DTLS
|
---|
1616 |
|
---|
1617 | void wolfSSL_CTX_SetGenCookie(WOLFSSL_CTX* ctx, CallbackGenCookie cb)
|
---|
1618 | {
|
---|
1619 | if (ctx)
|
---|
1620 | ctx->CBIOCookie = cb;
|
---|
1621 | }
|
---|
1622 |
|
---|
1623 |
|
---|
1624 | void wolfSSL_SetCookieCtx(WOLFSSL* ssl, void *ctx)
|
---|
1625 | {
|
---|
1626 | if (ssl)
|
---|
1627 | ssl->IOCB_CookieCtx = ctx;
|
---|
1628 | }
|
---|
1629 |
|
---|
1630 |
|
---|
1631 | void* wolfSSL_GetCookieCtx(WOLFSSL* ssl)
|
---|
1632 | {
|
---|
1633 | if (ssl)
|
---|
1634 | return ssl->IOCB_CookieCtx;
|
---|
1635 |
|
---|
1636 | return NULL;
|
---|
1637 | }
|
---|
1638 |
|
---|
1639 | #ifdef WOLFSSL_SESSION_EXPORT
|
---|
1640 |
|
---|
1641 | void wolfSSL_CTX_SetIOGetPeer(WOLFSSL_CTX* ctx, CallbackGetPeer cb)
|
---|
1642 | {
|
---|
1643 | if (ctx)
|
---|
1644 | ctx->CBGetPeer = cb;
|
---|
1645 | }
|
---|
1646 |
|
---|
1647 |
|
---|
1648 | void wolfSSL_CTX_SetIOSetPeer(WOLFSSL_CTX* ctx, CallbackSetPeer cb)
|
---|
1649 | {
|
---|
1650 | if (ctx)
|
---|
1651 | ctx->CBSetPeer = cb;
|
---|
1652 | }
|
---|
1653 |
|
---|
1654 | #endif /* WOLFSSL_SESSION_EXPORT */
|
---|
1655 | #endif /* WOLFSSL_DTLS */
|
---|
1656 |
|
---|
1657 |
|
---|
1658 | #ifdef HAVE_NETX
|
---|
1659 |
|
---|
1660 | /* The NetX receive callback
|
---|
1661 | * return : bytes read, or error
|
---|
1662 | */
|
---|
1663 | int NetX_Receive(WOLFSSL *ssl, char *buf, int sz, void *ctx)
|
---|
1664 | {
|
---|
1665 | NetX_Ctx* nxCtx = (NetX_Ctx*)ctx;
|
---|
1666 | ULONG left;
|
---|
1667 | ULONG total;
|
---|
1668 | ULONG copied = 0;
|
---|
1669 | UINT status;
|
---|
1670 |
|
---|
1671 | (void)ssl;
|
---|
1672 |
|
---|
1673 | if (nxCtx == NULL || nxCtx->nxSocket == NULL) {
|
---|
1674 | WOLFSSL_MSG("NetX Recv NULL parameters");
|
---|
1675 | return WOLFSSL_CBIO_ERR_GENERAL;
|
---|
1676 | }
|
---|
1677 |
|
---|
1678 | if (nxCtx->nxPacket == NULL) {
|
---|
1679 | status = nx_tcp_socket_receive(nxCtx->nxSocket, &nxCtx->nxPacket,
|
---|
1680 | nxCtx->nxWait);
|
---|
1681 | if (status != NX_SUCCESS) {
|
---|
1682 | WOLFSSL_MSG("NetX Recv receive error");
|
---|
1683 | return WOLFSSL_CBIO_ERR_GENERAL;
|
---|
1684 | }
|
---|
1685 | }
|
---|
1686 |
|
---|
1687 | if (nxCtx->nxPacket) {
|
---|
1688 | status = nx_packet_length_get(nxCtx->nxPacket, &total);
|
---|
1689 | if (status != NX_SUCCESS) {
|
---|
1690 | WOLFSSL_MSG("NetX Recv length get error");
|
---|
1691 | return WOLFSSL_CBIO_ERR_GENERAL;
|
---|
1692 | }
|
---|
1693 |
|
---|
1694 | left = total - nxCtx->nxOffset;
|
---|
1695 | status = nx_packet_data_extract_offset(nxCtx->nxPacket, nxCtx->nxOffset,
|
---|
1696 | buf, sz, &copied);
|
---|
1697 | if (status != NX_SUCCESS) {
|
---|
1698 | WOLFSSL_MSG("NetX Recv data extract offset error");
|
---|
1699 | return WOLFSSL_CBIO_ERR_GENERAL;
|
---|
1700 | }
|
---|
1701 |
|
---|
1702 | nxCtx->nxOffset += copied;
|
---|
1703 |
|
---|
1704 | if (copied == left) {
|
---|
1705 | WOLFSSL_MSG("NetX Recv Drained packet");
|
---|
1706 | nx_packet_release(nxCtx->nxPacket);
|
---|
1707 | nxCtx->nxPacket = NULL;
|
---|
1708 | nxCtx->nxOffset = 0;
|
---|
1709 | }
|
---|
1710 | }
|
---|
1711 |
|
---|
1712 | return copied;
|
---|
1713 | }
|
---|
1714 |
|
---|
1715 |
|
---|
1716 | /* The NetX send callback
|
---|
1717 | * return : bytes sent, or error
|
---|
1718 | */
|
---|
1719 | int NetX_Send(WOLFSSL* ssl, char *buf, int sz, void *ctx)
|
---|
1720 | {
|
---|
1721 | NetX_Ctx* nxCtx = (NetX_Ctx*)ctx;
|
---|
1722 | NX_PACKET* packet;
|
---|
1723 | NX_PACKET_POOL* pool; /* shorthand */
|
---|
1724 | UINT status;
|
---|
1725 |
|
---|
1726 | (void)ssl;
|
---|
1727 |
|
---|
1728 | if (nxCtx == NULL || nxCtx->nxSocket == NULL) {
|
---|
1729 | WOLFSSL_MSG("NetX Send NULL parameters");
|
---|
1730 | return WOLFSSL_CBIO_ERR_GENERAL;
|
---|
1731 | }
|
---|
1732 |
|
---|
1733 | pool = nxCtx->nxSocket->nx_tcp_socket_ip_ptr->nx_ip_default_packet_pool;
|
---|
1734 | status = nx_packet_allocate(pool, &packet, NX_TCP_PACKET,
|
---|
1735 | nxCtx->nxWait);
|
---|
1736 | if (status != NX_SUCCESS) {
|
---|
1737 | WOLFSSL_MSG("NetX Send packet alloc error");
|
---|
1738 | return WOLFSSL_CBIO_ERR_GENERAL;
|
---|
1739 | }
|
---|
1740 |
|
---|
1741 | status = nx_packet_data_append(packet, buf, sz, pool, nxCtx->nxWait);
|
---|
1742 | if (status != NX_SUCCESS) {
|
---|
1743 | nx_packet_release(packet);
|
---|
1744 | WOLFSSL_MSG("NetX Send data append error");
|
---|
1745 | return WOLFSSL_CBIO_ERR_GENERAL;
|
---|
1746 | }
|
---|
1747 |
|
---|
1748 | status = nx_tcp_socket_send(nxCtx->nxSocket, packet, nxCtx->nxWait);
|
---|
1749 | if (status != NX_SUCCESS) {
|
---|
1750 | nx_packet_release(packet);
|
---|
1751 | WOLFSSL_MSG("NetX Send socket send error");
|
---|
1752 | return WOLFSSL_CBIO_ERR_GENERAL;
|
---|
1753 | }
|
---|
1754 |
|
---|
1755 | return sz;
|
---|
1756 | }
|
---|
1757 |
|
---|
1758 |
|
---|
1759 | /* like set_fd, but for default NetX context */
|
---|
1760 | void wolfSSL_SetIO_NetX(WOLFSSL* ssl, NX_TCP_SOCKET* nxSocket, ULONG waitOption)
|
---|
1761 | {
|
---|
1762 | if (ssl) {
|
---|
1763 | ssl->nxCtx.nxSocket = nxSocket;
|
---|
1764 | ssl->nxCtx.nxWait = waitOption;
|
---|
1765 | }
|
---|
1766 | }
|
---|
1767 |
|
---|
1768 | #endif /* HAVE_NETX */
|
---|
1769 |
|
---|
1770 |
|
---|
1771 | #ifdef MICRIUM
|
---|
1772 |
|
---|
1773 | /* Micrium uTCP/IP port, using the NetSock API
|
---|
1774 | * TCP and UDP are currently supported with the callbacks below.
|
---|
1775 | *
|
---|
1776 | * WOLFSSL_SESSION_EXPORT is not yet supported, would need EmbedGetPeer()
|
---|
1777 | * and EmbedSetPeer() callbacks implemented.
|
---|
1778 | *
|
---|
1779 | * HAVE_CRL is not yet supported, would need an EmbedCrlLookup()
|
---|
1780 | * callback implemented.
|
---|
1781 | *
|
---|
1782 | * HAVE_OCSP is not yet supported, would need an EmbedOCSPLookup()
|
---|
1783 | * callback implemented.
|
---|
1784 | */
|
---|
1785 |
|
---|
1786 | /* The Micrium uTCP/IP send callback
|
---|
1787 | * return : bytes sent, or error
|
---|
1788 | */
|
---|
1789 | int MicriumSend(WOLFSSL* ssl, char* buf, int sz, void* ctx)
|
---|
1790 | {
|
---|
1791 | NET_SOCK_ID sd = *(int*)ctx;
|
---|
1792 | NET_SOCK_RTN_CODE ret;
|
---|
1793 | NET_ERR err;
|
---|
1794 |
|
---|
1795 | ret = NetSock_TxData(sd, buf, sz, ssl->wflags, &err);
|
---|
1796 | if (ret < 0) {
|
---|
1797 | WOLFSSL_MSG("Embed Send error");
|
---|
1798 |
|
---|
1799 | if (err == NET_ERR_TX) {
|
---|
1800 | WOLFSSL_MSG("\tWould block");
|
---|
1801 | return WOLFSSL_CBIO_ERR_WANT_WRITE;
|
---|
1802 |
|
---|
1803 | } else {
|
---|
1804 | WOLFSSL_MSG("\tGeneral error");
|
---|
1805 | return WOLFSSL_CBIO_ERR_GENERAL;
|
---|
1806 | }
|
---|
1807 | }
|
---|
1808 |
|
---|
1809 | return ret;
|
---|
1810 | }
|
---|
1811 |
|
---|
1812 | /* The Micrium uTCP/IP receive callback
|
---|
1813 | * return : nb bytes read, or error
|
---|
1814 | */
|
---|
1815 | int MicriumReceive(WOLFSSL *ssl, char *buf, int sz, void *ctx)
|
---|
1816 | {
|
---|
1817 | NET_SOCK_ID sd = *(int*)ctx;
|
---|
1818 | NET_SOCK_RTN_CODE ret;
|
---|
1819 | NET_ERR err;
|
---|
1820 |
|
---|
1821 | #ifdef WOLFSSL_DTLS
|
---|
1822 | {
|
---|
1823 | int dtls_timeout = wolfSSL_dtls_get_current_timeout(ssl);
|
---|
1824 | if (wolfSSL_dtls(ssl)
|
---|
1825 | && !wolfSSL_dtls_get_using_nonblock(ssl)
|
---|
1826 | && dtls_timeout != 0) {
|
---|
1827 | /* needs timeout in milliseconds */
|
---|
1828 | NetSock_CfgTimeoutRxQ_Set(sd, dtls_timeout * 1000, &err);
|
---|
1829 | if (err != NET_SOCK_ERR_NONE) {
|
---|
1830 | WOLFSSL_MSG("NetSock_CfgTimeoutRxQ_Set failed");
|
---|
1831 | }
|
---|
1832 | }
|
---|
1833 | }
|
---|
1834 | #endif
|
---|
1835 |
|
---|
1836 | ret = NetSock_RxData(sd, buf, sz, ssl->rflags, &err);
|
---|
1837 | if (ret < 0) {
|
---|
1838 | WOLFSSL_MSG("Embed Receive error");
|
---|
1839 |
|
---|
1840 | if (err == NET_ERR_RX || err == NET_SOCK_ERR_RX_Q_EMPTY ||
|
---|
1841 | err == NET_ERR_FAULT_LOCK_ACQUIRE) {
|
---|
1842 | if (!wolfSSL_dtls(ssl) || wolfSSL_dtls_get_using_nonblock(ssl)) {
|
---|
1843 | WOLFSSL_MSG("\tWould block");
|
---|
1844 | return WOLFSSL_CBIO_ERR_WANT_READ;
|
---|
1845 | }
|
---|
1846 | else {
|
---|
1847 | WOLFSSL_MSG("\tSocket timeout");
|
---|
1848 | return WOLFSSL_CBIO_ERR_TIMEOUT;
|
---|
1849 | }
|
---|
1850 |
|
---|
1851 | } else if (err == NET_SOCK_ERR_CLOSED) {
|
---|
1852 | WOLFSSL_MSG("Embed receive connection closed");
|
---|
1853 | return WOLFSSL_CBIO_ERR_CONN_CLOSE;
|
---|
1854 |
|
---|
1855 | } else {
|
---|
1856 | WOLFSSL_MSG("\tGeneral error");
|
---|
1857 | return WOLFSSL_CBIO_ERR_GENERAL;
|
---|
1858 | }
|
---|
1859 | }
|
---|
1860 |
|
---|
1861 | return ret;
|
---|
1862 | }
|
---|
1863 |
|
---|
1864 | /* The Micrium uTCP/IP receivefrom callback
|
---|
1865 | * return : nb bytes read, or error
|
---|
1866 | */
|
---|
1867 | int MicriumReceiveFrom(WOLFSSL *ssl, char *buf, int sz, void *ctx)
|
---|
1868 | {
|
---|
1869 | WOLFSSL_DTLS_CTX* dtlsCtx = (WOLFSSL_DTLS_CTX*)ctx;
|
---|
1870 | NET_SOCK_ID sd = dtlsCtx->rfd;
|
---|
1871 | NET_SOCK_ADDR peer;
|
---|
1872 | NET_SOCK_ADDR_LEN peerSz = sizeof(peer);
|
---|
1873 | NET_SOCK_RTN_CODE ret;
|
---|
1874 | NET_ERR err;
|
---|
1875 | int dtls_timeout = wolfSSL_dtls_get_current_timeout(ssl);
|
---|
1876 |
|
---|
1877 | WOLFSSL_ENTER("MicriumReceiveFrom()");
|
---|
1878 |
|
---|
1879 | if (ssl->options.handShakeDone)
|
---|
1880 | dtls_timeout = 0;
|
---|
1881 |
|
---|
1882 | if (!wolfSSL_dtls_get_using_nonblock(ssl)) {
|
---|
1883 | /* needs timeout in milliseconds */
|
---|
1884 | NetSock_CfgTimeoutRxQ_Set(sd, dtls_timeout * 1000, &err);
|
---|
1885 | if (err != NET_SOCK_ERR_NONE) {
|
---|
1886 | WOLFSSL_MSG("NetSock_CfgTimeoutRxQ_Set failed");
|
---|
1887 | }
|
---|
1888 | }
|
---|
1889 |
|
---|
1890 | ret = NetSock_RxDataFrom(sd, buf, sz, ssl->rflags, &peer, &peerSz,
|
---|
1891 | 0, 0, 0, &err);
|
---|
1892 | if (ret < 0) {
|
---|
1893 | WOLFSSL_MSG("Embed Receive From error");
|
---|
1894 |
|
---|
1895 | if (err == NET_ERR_RX || err == NET_SOCK_ERR_RX_Q_EMPTY ||
|
---|
1896 | err == NET_ERR_FAULT_LOCK_ACQUIRE) {
|
---|
1897 | if (wolfSSL_dtls_get_using_nonblock(ssl)) {
|
---|
1898 | WOLFSSL_MSG("\tWould block");
|
---|
1899 | return WOLFSSL_CBIO_ERR_WANT_READ;
|
---|
1900 | }
|
---|
1901 | else {
|
---|
1902 | WOLFSSL_MSG("\tSocket timeout");
|
---|
1903 | return WOLFSSL_CBIO_ERR_TIMEOUT;
|
---|
1904 | }
|
---|
1905 | } else {
|
---|
1906 | WOLFSSL_MSG("\tGeneral error");
|
---|
1907 | return WOLFSSL_CBIO_ERR_GENERAL;
|
---|
1908 | }
|
---|
1909 | }
|
---|
1910 | else {
|
---|
1911 | if (dtlsCtx->peer.sz > 0
|
---|
1912 | && peerSz != (NET_SOCK_ADDR_LEN)dtlsCtx->peer.sz
|
---|
1913 | && XMEMCMP(&peer, dtlsCtx->peer.sa, peerSz) != 0) {
|
---|
1914 | WOLFSSL_MSG("\tIgnored packet from invalid peer");
|
---|
1915 | return WOLFSSL_CBIO_ERR_WANT_READ;
|
---|
1916 | }
|
---|
1917 | }
|
---|
1918 |
|
---|
1919 | return ret;
|
---|
1920 | }
|
---|
1921 |
|
---|
1922 | /* The Micrium uTCP/IP sendto callback
|
---|
1923 | * return : nb bytes sent, or error
|
---|
1924 | */
|
---|
1925 | int MicriumSendTo(WOLFSSL* ssl, char *buf, int sz, void *ctx)
|
---|
1926 | {
|
---|
1927 | WOLFSSL_DTLS_CTX* dtlsCtx = (WOLFSSL_DTLS_CTX*)ctx;
|
---|
1928 | NET_SOCK_ID sd = dtlsCtx->wfd;
|
---|
1929 | NET_SOCK_RTN_CODE ret;
|
---|
1930 | NET_ERR err;
|
---|
1931 |
|
---|
1932 | WOLFSSL_ENTER("MicriumSendTo()");
|
---|
1933 |
|
---|
1934 | ret = NetSock_TxDataTo(sd, buf, sz, ssl->wflags,
|
---|
1935 | (NET_SOCK_ADDR*)dtlsCtx->peer.sa,
|
---|
1936 | (NET_SOCK_ADDR_LEN)dtlsCtx->peer.sz,
|
---|
1937 | &err);
|
---|
1938 | if (err < 0) {
|
---|
1939 | WOLFSSL_MSG("Embed Send To error");
|
---|
1940 |
|
---|
1941 | if (err == NET_ERR_TX) {
|
---|
1942 | WOLFSSL_MSG("\tWould block");
|
---|
1943 | return WOLFSSL_CBIO_ERR_WANT_WRITE;
|
---|
1944 |
|
---|
1945 | } else {
|
---|
1946 | WOLFSSL_MSG("\tGeneral error");
|
---|
1947 | return WOLFSSL_CBIO_ERR_GENERAL;
|
---|
1948 | }
|
---|
1949 | }
|
---|
1950 |
|
---|
1951 | return ret;
|
---|
1952 | }
|
---|
1953 |
|
---|
1954 | /* Micrium DTLS Generate Cookie callback
|
---|
1955 | * return : number of bytes copied into buf, or error
|
---|
1956 | */
|
---|
1957 | int MicriumGenerateCookie(WOLFSSL* ssl, byte *buf, int sz, void *ctx)
|
---|
1958 | {
|
---|
1959 | NET_SOCK_ADDR peer;
|
---|
1960 | NET_SOCK_ADDR_LEN peerSz = sizeof(peer);
|
---|
1961 | byte digest[WC_SHA_DIGEST_SIZE];
|
---|
1962 | int ret = 0;
|
---|
1963 |
|
---|
1964 | (void)ctx;
|
---|
1965 |
|
---|
1966 | XMEMSET(&peer, 0, sizeof(peer));
|
---|
1967 | if (wolfSSL_dtls_get_peer(ssl, (void*)&peer,
|
---|
1968 | (unsigned int*)&peerSz) != WOLFSSL_SUCCESS) {
|
---|
1969 | WOLFSSL_MSG("getpeername failed in MicriumGenerateCookie");
|
---|
1970 | return GEN_COOKIE_E;
|
---|
1971 | }
|
---|
1972 |
|
---|
1973 | ret = wc_ShaHash((byte*)&peer, peerSz, digest);
|
---|
1974 | if (ret != 0)
|
---|
1975 | return ret;
|
---|
1976 |
|
---|
1977 | if (sz > WC_SHA_DIGEST_SIZE)
|
---|
1978 | sz = WC_SHA_DIGEST_SIZE;
|
---|
1979 | XMEMCPY(buf, digest, sz);
|
---|
1980 |
|
---|
1981 | return sz;
|
---|
1982 | }
|
---|
1983 |
|
---|
1984 | #endif /* MICRIUM */
|
---|
1985 |
|
---|
1986 | #if defined(WOLFSSL_APACHE_MYNEWT) && !defined(WOLFSSL_LWIP)
|
---|
1987 |
|
---|
1988 | #include <os/os_error.h>
|
---|
1989 | #include <os/os_mbuf.h>
|
---|
1990 | #include <os/os_mempool.h>
|
---|
1991 |
|
---|
1992 | #define MB_NAME "wolfssl_mb"
|
---|
1993 |
|
---|
1994 | typedef struct Mynewt_Ctx {
|
---|
1995 | struct mn_socket *mnSocket; /* send/recv socket handler */
|
---|
1996 | struct mn_sockaddr_in mnSockAddrIn; /* socket address */
|
---|
1997 | struct os_mbuf *mnPacket; /* incoming packet handle
|
---|
1998 | for short reads */
|
---|
1999 | int reading; /* reading flag */
|
---|
2000 |
|
---|
2001 | /* private */
|
---|
2002 | void *mnMemBuffer; /* memory buffer for mempool */
|
---|
2003 | struct os_mempool mnMempool; /* mempool */
|
---|
2004 | struct os_mbuf_pool mnMbufpool; /* mbuf pool */
|
---|
2005 | } Mynewt_Ctx;
|
---|
2006 |
|
---|
2007 | void mynewt_ctx_clear(void *ctx) {
|
---|
2008 | Mynewt_Ctx *mynewt_ctx = (Mynewt_Ctx*)ctx;
|
---|
2009 | if(!mynewt_ctx) return;
|
---|
2010 |
|
---|
2011 | if(mynewt_ctx->mnPacket) {
|
---|
2012 | os_mbuf_free_chain(mynewt_ctx->mnPacket);
|
---|
2013 | mynewt_ctx->mnPacket = NULL;
|
---|
2014 | }
|
---|
2015 | os_mempool_clear(&mynewt_ctx->mnMempool);
|
---|
2016 | XFREE(mynewt_ctx->mnMemBuffer, 0, 0);
|
---|
2017 | XFREE(mynewt_ctx, 0, 0);
|
---|
2018 | }
|
---|
2019 |
|
---|
2020 | /* return Mynewt_Ctx instance */
|
---|
2021 | void* mynewt_ctx_new() {
|
---|
2022 | int rc = 0;
|
---|
2023 | Mynewt_Ctx *mynewt_ctx;
|
---|
2024 | int mem_buf_count = MYNEWT_VAL(WOLFSSL_MNSOCK_MEM_BUF_COUNT);
|
---|
2025 | int mem_buf_size = MYNEWT_VAL(WOLFSSL_MNSOCK_MEM_BUF_SIZE);
|
---|
2026 | int mempool_bytes = OS_MEMPOOL_BYTES(mem_buf_count, mem_buf_size);
|
---|
2027 |
|
---|
2028 | mynewt_ctx = (Mynewt_Ctx *)XMALLOC(sizeof(struct Mynewt_Ctx),
|
---|
2029 | NULL, DYNAMIC_TYPE_TMP_BUFFER);
|
---|
2030 | if(!mynewt_ctx) return NULL;
|
---|
2031 |
|
---|
2032 | XMEMSET(mynewt_ctx, 0, sizeof(Mynewt_Ctx));
|
---|
2033 | mynewt_ctx->mnMemBuffer = XMALLOC(mempool_bytes, 0, 0);
|
---|
2034 | if(!mynewt_ctx->mnMemBuffer) {
|
---|
2035 | mynewt_ctx_clear((void*)mynewt_ctx);
|
---|
2036 | return NULL;
|
---|
2037 | }
|
---|
2038 |
|
---|
2039 | rc = os_mempool_init(&mynewt_ctx->mnMempool,
|
---|
2040 | mem_buf_count, mem_buf_size,
|
---|
2041 | mynewt_ctx->mnMemBuffer, MB_NAME);
|
---|
2042 | if(rc != 0) {
|
---|
2043 | mynewt_ctx_clear((void*)mynewt_ctx);
|
---|
2044 | return NULL;
|
---|
2045 | }
|
---|
2046 | rc = os_mbuf_pool_init(&mynewt_ctx->mnMbufpool, &mynewt_ctx->mnMempool,
|
---|
2047 | mem_buf_count, mem_buf_size);
|
---|
2048 | if(rc != 0) {
|
---|
2049 | mynewt_ctx_clear((void*)mynewt_ctx);
|
---|
2050 | return NULL;
|
---|
2051 | }
|
---|
2052 |
|
---|
2053 | return mynewt_ctx;
|
---|
2054 | }
|
---|
2055 |
|
---|
2056 | static void mynewt_sock_writable(void *arg, int err);
|
---|
2057 | static void mynewt_sock_readable(void *arg, int err);
|
---|
2058 | static const union mn_socket_cb mynewt_sock_cbs = {
|
---|
2059 | .socket.writable = mynewt_sock_writable,
|
---|
2060 | .socket.readable = mynewt_sock_readable,
|
---|
2061 | };
|
---|
2062 | static void mynewt_sock_writable(void *arg, int err)
|
---|
2063 | {
|
---|
2064 | /* do nothing */
|
---|
2065 | }
|
---|
2066 | static void mynewt_sock_readable(void *arg, int err)
|
---|
2067 | {
|
---|
2068 | Mynewt_Ctx *mynewt_ctx = (Mynewt_Ctx *)arg;
|
---|
2069 | if (err && mynewt_ctx->reading) {
|
---|
2070 | mynewt_ctx->reading = 0;
|
---|
2071 | }
|
---|
2072 | }
|
---|
2073 |
|
---|
2074 | /* The Mynewt receive callback
|
---|
2075 | * return : bytes read, or error
|
---|
2076 | */
|
---|
2077 | int Mynewt_Receive(WOLFSSL *ssl, char *buf, int sz, void *ctx)
|
---|
2078 | {
|
---|
2079 | Mynewt_Ctx *mynewt_ctx = (Mynewt_Ctx*)ctx;
|
---|
2080 | int rc = 0;
|
---|
2081 | struct mn_sockaddr_in from;
|
---|
2082 | struct os_mbuf *m;
|
---|
2083 | int read_sz = 0;
|
---|
2084 | uint16_t total;
|
---|
2085 |
|
---|
2086 | if (mynewt_ctx == NULL || mynewt_ctx->mnSocket == NULL) {
|
---|
2087 | WOLFSSL_MSG("Mynewt Recv NULL parameters");
|
---|
2088 | return WOLFSSL_CBIO_ERR_GENERAL;
|
---|
2089 | }
|
---|
2090 |
|
---|
2091 | if(mynewt_ctx->mnPacket == NULL) {
|
---|
2092 | mynewt_ctx->mnPacket = os_mbuf_get_pkthdr(&mynewt_ctx->mnMbufpool, 0);
|
---|
2093 | if(mynewt_ctx->mnPacket == NULL) {
|
---|
2094 | return MEMORY_E;
|
---|
2095 | }
|
---|
2096 |
|
---|
2097 | mynewt_ctx->reading = 1;
|
---|
2098 | while(mynewt_ctx->reading && rc == 0) {
|
---|
2099 | rc = mn_recvfrom(mynewt_ctx->mnSocket, &m, (struct mn_sockaddr *) &from);
|
---|
2100 | if(rc == MN_ECONNABORTED) {
|
---|
2101 | rc = 0;
|
---|
2102 | mynewt_ctx->reading = 0;
|
---|
2103 | break;
|
---|
2104 | }
|
---|
2105 | if (!(rc == 0 || rc == MN_EAGAIN)) {
|
---|
2106 | WOLFSSL_MSG("Mynewt Recv receive error");
|
---|
2107 | mynewt_ctx->reading = 0;
|
---|
2108 | break;
|
---|
2109 | }
|
---|
2110 | if(rc == 0) {
|
---|
2111 | int len = OS_MBUF_PKTLEN(m);
|
---|
2112 | if(len == 0) {
|
---|
2113 | break;
|
---|
2114 | }
|
---|
2115 | rc = os_mbuf_appendfrom(mynewt_ctx->mnPacket, m, 0, len);
|
---|
2116 | if(rc != 0) {
|
---|
2117 | WOLFSSL_MSG("Mynewt Recv os_mbuf_appendfrom error");
|
---|
2118 | break;
|
---|
2119 | }
|
---|
2120 | os_mbuf_free_chain(m);
|
---|
2121 | m = NULL;
|
---|
2122 | } else if(rc == MN_EAGAIN) {
|
---|
2123 | /* continue to until reading all of packet data. */
|
---|
2124 | rc = 0;
|
---|
2125 | break;
|
---|
2126 | }
|
---|
2127 | }
|
---|
2128 | if(rc != 0) {
|
---|
2129 | mynewt_ctx->reading = 0;
|
---|
2130 | os_mbuf_free_chain(mynewt_ctx->mnPacket);
|
---|
2131 | mynewt_ctx->mnPacket = NULL;
|
---|
2132 | return rc;
|
---|
2133 | }
|
---|
2134 | }
|
---|
2135 |
|
---|
2136 | if(mynewt_ctx->mnPacket) {
|
---|
2137 | total = OS_MBUF_PKTLEN(mynewt_ctx->mnPacket);
|
---|
2138 | read_sz = (total >= sz)? sz : total;
|
---|
2139 |
|
---|
2140 | os_mbuf_copydata(mynewt_ctx->mnPacket, 0, read_sz, (void*)buf);
|
---|
2141 | os_mbuf_adj(mynewt_ctx->mnPacket, read_sz);
|
---|
2142 |
|
---|
2143 | if (read_sz == total) {
|
---|
2144 | WOLFSSL_MSG("Mynewt Recv Drained packet");
|
---|
2145 | os_mbuf_free_chain(mynewt_ctx->mnPacket);
|
---|
2146 | mynewt_ctx->mnPacket = NULL;
|
---|
2147 | }
|
---|
2148 | }
|
---|
2149 |
|
---|
2150 | return read_sz;
|
---|
2151 | }
|
---|
2152 |
|
---|
2153 | /* The Mynewt send callback
|
---|
2154 | * return : bytes sent, or error
|
---|
2155 | */
|
---|
2156 | int Mynewt_Send(WOLFSSL* ssl, char *buf, int sz, void *ctx)
|
---|
2157 | {
|
---|
2158 | Mynewt_Ctx *mynewt_ctx = (Mynewt_Ctx*)ctx;
|
---|
2159 | int rc = 0;
|
---|
2160 | struct os_mbuf *m;
|
---|
2161 | int write_sz = 0;
|
---|
2162 | m = os_msys_get_pkthdr(sz, 0);
|
---|
2163 | if (!m) {
|
---|
2164 | WOLFSSL_MSG("Mynewt Send os_msys_get_pkthdr error");
|
---|
2165 | return WOLFSSL_CBIO_ERR_GENERAL;
|
---|
2166 | }
|
---|
2167 | rc = os_mbuf_copyinto(m, 0, buf, sz);
|
---|
2168 | if (rc != 0) {
|
---|
2169 | WOLFSSL_MSG("Mynewt Send os_mbuf_copyinto error");
|
---|
2170 | os_mbuf_free_chain(m);
|
---|
2171 | return rc;
|
---|
2172 | }
|
---|
2173 | rc = mn_sendto(mynewt_ctx->mnSocket, m, (struct mn_sockaddr *)&mynewt_ctx->mnSockAddrIn);
|
---|
2174 | if(rc != 0) {
|
---|
2175 | WOLFSSL_MSG("Mynewt Send mn_sendto error");
|
---|
2176 | os_mbuf_free_chain(m);
|
---|
2177 | return rc;
|
---|
2178 | }
|
---|
2179 | write_sz = sz;
|
---|
2180 | return write_sz;
|
---|
2181 | }
|
---|
2182 |
|
---|
2183 | /* like set_fd, but for default NetX context */
|
---|
2184 | void wolfSSL_SetIO_Mynewt(WOLFSSL* ssl, struct mn_socket* mnSocket, struct mn_sockaddr_in* mnSockAddrIn)
|
---|
2185 | {
|
---|
2186 | if (ssl && ssl->mnCtx) {
|
---|
2187 | Mynewt_Ctx *mynewt_ctx = (Mynewt_Ctx *)ssl->mnCtx;
|
---|
2188 | mynewt_ctx->mnSocket = mnSocket;
|
---|
2189 | memcpy(&mynewt_ctx->mnSockAddrIn, mnSockAddrIn, sizeof(struct mn_sockaddr_in));
|
---|
2190 | mn_socket_set_cbs(mynewt_ctx->mnSocket, mnSocket, &mynewt_sock_cbs);
|
---|
2191 | }
|
---|
2192 | }
|
---|
2193 |
|
---|
2194 | #endif /* defined(WOLFSSL_APACHE_MYNEWT) && !defined(WOLFSSL_LWIP) */
|
---|
2195 |
|
---|
2196 | #ifdef WOLFSSL_UIP
|
---|
2197 | #include <uip.h>
|
---|
2198 | #include <stdio.h>
|
---|
2199 |
|
---|
2200 | /* uIP TCP/IP port, using the native tcp/udp socket api.
|
---|
2201 | * TCP and UDP are currently supported with the callbacks below.
|
---|
2202 | *
|
---|
2203 | */
|
---|
2204 | /* The uIP tcp send callback
|
---|
2205 | * return : bytes sent, or error
|
---|
2206 | */
|
---|
2207 | int uIPSend(WOLFSSL* ssl, char* buf, int sz, void* _ctx)
|
---|
2208 | {
|
---|
2209 | uip_wolfssl_ctx *ctx = (struct uip_wolfssl_ctx *)_ctx;
|
---|
2210 | int ret;
|
---|
2211 | unsigned int max_sendlen;
|
---|
2212 | int total_written = 0;
|
---|
2213 | (void)ssl;
|
---|
2214 | do {
|
---|
2215 | unsigned int bytes_left = sz - total_written;
|
---|
2216 | max_sendlen = tcp_socket_max_sendlen(&ctx->conn.tcp);
|
---|
2217 | if (bytes_left > max_sendlen) {
|
---|
2218 | printf("Send limited by buffer\r\n");
|
---|
2219 | bytes_left = max_sendlen;
|
---|
2220 | }
|
---|
2221 | if (bytes_left == 0) {
|
---|
2222 | printf("Buffer full!\r\n");
|
---|
2223 | break;
|
---|
2224 | }
|
---|
2225 | ret = tcp_socket_send(&ctx->conn.tcp, (unsigned char *)buf + total_written, bytes_left);
|
---|
2226 | if (ret <= 0)
|
---|
2227 | break;
|
---|
2228 | total_written += ret;
|
---|
2229 | } while(total_written < sz);
|
---|
2230 | if (total_written == 0)
|
---|
2231 | return WOLFSSL_CBIO_ERR_WANT_WRITE;
|
---|
2232 | return total_written;
|
---|
2233 | }
|
---|
2234 |
|
---|
2235 | int uIPSendTo(WOLFSSL* ssl, char* buf, int sz, void* _ctx)
|
---|
2236 | {
|
---|
2237 | uip_wolfssl_ctx *ctx = (struct uip_wolfssl_ctx *)_ctx;
|
---|
2238 | int ret = 0;
|
---|
2239 | (void)ssl;
|
---|
2240 | ret = udp_socket_sendto(&ctx->conn.udp, (unsigned char *)buf, sz, &ctx->peer_addr, ctx->peer_port );
|
---|
2241 | if (ret == 0)
|
---|
2242 | return WOLFSSL_CBIO_ERR_WANT_WRITE;
|
---|
2243 | return ret;
|
---|
2244 | }
|
---|
2245 |
|
---|
2246 | /* The uIP uTCP/IP receive callback
|
---|
2247 | * return : nb bytes read, or error
|
---|
2248 | */
|
---|
2249 | int uIPReceive(WOLFSSL *ssl, char *buf, int sz, void *_ctx)
|
---|
2250 | {
|
---|
2251 | uip_wolfssl_ctx *ctx = (uip_wolfssl_ctx *)_ctx;
|
---|
2252 | if (!ctx || !ctx->ssl_rx_databuf)
|
---|
2253 | return -1;
|
---|
2254 | (void)ssl;
|
---|
2255 | if (ctx->ssl_rb_len > 0) {
|
---|
2256 | if (sz > ctx->ssl_rb_len - ctx->ssl_rb_off)
|
---|
2257 | sz = ctx->ssl_rb_len - ctx->ssl_rb_off;
|
---|
2258 | XMEMCPY(buf, ctx->ssl_rx_databuf + ctx->ssl_rb_off, sz);
|
---|
2259 | ctx->ssl_rb_off += sz;
|
---|
2260 | if (ctx->ssl_rb_off >= ctx->ssl_rb_len) {
|
---|
2261 | ctx->ssl_rb_len = 0;
|
---|
2262 | ctx->ssl_rb_off = 0;
|
---|
2263 | }
|
---|
2264 | return sz;
|
---|
2265 | } else {
|
---|
2266 | return WOLFSSL_CBIO_ERR_WANT_READ;
|
---|
2267 | }
|
---|
2268 | }
|
---|
2269 |
|
---|
2270 | /* uIP DTLS Generate Cookie callback
|
---|
2271 | * return : number of bytes copied into buf, or error
|
---|
2272 | */
|
---|
2273 | int uIPGenerateCookie(WOLFSSL* ssl, byte *buf, int sz, void *_ctx)
|
---|
2274 | {
|
---|
2275 | uip_wolfssl_ctx *ctx = (uip_wolfssl_ctx *)_ctx;
|
---|
2276 | byte token[32];
|
---|
2277 | byte digest[WC_SHA_DIGEST_SIZE];
|
---|
2278 | int ret = 0;
|
---|
2279 | XMEMSET(token, 0, sizeof(token));
|
---|
2280 | XMEMCPY(token, &ctx->peer_addr, sizeof(uip_ipaddr_t));
|
---|
2281 | XMEMCPY(token + sizeof(uip_ipaddr_t), &ctx->peer_port, sizeof(word16));
|
---|
2282 | ret = wc_ShaHash(token, sizeof(uip_ipaddr_t) + sizeof(word16), digest);
|
---|
2283 | if (ret != 0)
|
---|
2284 | return ret;
|
---|
2285 | if (sz > WC_SHA_DIGEST_SIZE)
|
---|
2286 | sz = WC_SHA_DIGEST_SIZE;
|
---|
2287 | XMEMCPY(buf, digest, sz);
|
---|
2288 | return sz;
|
---|
2289 | }
|
---|
2290 |
|
---|
2291 | #endif /* WOLFSSL_UIP */
|
---|
2292 |
|
---|
2293 | #ifdef WOLFSSL_GNRC
|
---|
2294 |
|
---|
2295 | #include <net/sock.h>
|
---|
2296 | #include <net/sock/tcp.h>
|
---|
2297 | #include <stdio.h>
|
---|
2298 |
|
---|
2299 | /* GNRC TCP/IP port, using the native tcp/udp socket api.
|
---|
2300 | * TCP and UDP are currently supported with the callbacks below.
|
---|
2301 | *
|
---|
2302 | */
|
---|
2303 | /* The GNRC tcp send callback
|
---|
2304 | * return : bytes sent, or error
|
---|
2305 | */
|
---|
2306 |
|
---|
2307 | int GNRC_SendTo(WOLFSSL* ssl, char* buf, int sz, void* _ctx)
|
---|
2308 | {
|
---|
2309 | sock_tls_t *ctx = (sock_tls_t *)_ctx;
|
---|
2310 | int ret = 0;
|
---|
2311 | (void)ssl;
|
---|
2312 | if (!ctx)
|
---|
2313 | return WOLFSSL_CBIO_ERR_GENERAL;
|
---|
2314 | ret = sock_udp_send(&ctx->conn.udp, (unsigned char *)buf, sz, &ctx->peer_addr);
|
---|
2315 | if (ret == 0)
|
---|
2316 | return WOLFSSL_CBIO_ERR_WANT_WRITE;
|
---|
2317 | return ret;
|
---|
2318 | }
|
---|
2319 |
|
---|
2320 | /* The GNRC TCP/IP receive callback
|
---|
2321 | * return : nb bytes read, or error
|
---|
2322 | */
|
---|
2323 | int GNRC_ReceiveFrom(WOLFSSL *ssl, char *buf, int sz, void *_ctx)
|
---|
2324 | {
|
---|
2325 | sock_udp_ep_t ep;
|
---|
2326 | int ret;
|
---|
2327 | uint32_t timeout = wolfSSL_dtls_get_current_timeout(ssl) * 1000000;
|
---|
2328 | sock_tls_t *ctx = (sock_tls_t *)_ctx;
|
---|
2329 | if (!ctx)
|
---|
2330 | return WOLFSSL_CBIO_ERR_GENERAL;
|
---|
2331 | (void)ssl;
|
---|
2332 | if (wolfSSL_get_using_nonblock(ctx->ssl)) {
|
---|
2333 | timeout = 0;
|
---|
2334 | }
|
---|
2335 | ret = sock_udp_recv(&ctx->conn.udp, buf, sz, timeout, &ep);
|
---|
2336 | if (ret > 0) {
|
---|
2337 | if (ctx->peer_addr.port == 0)
|
---|
2338 | XMEMCPY(&ctx->peer_addr, &ep, sizeof(sock_udp_ep_t));
|
---|
2339 | }
|
---|
2340 | if (ret == -ETIMEDOUT) {
|
---|
2341 | return WOLFSSL_CBIO_ERR_WANT_READ;
|
---|
2342 | }
|
---|
2343 | return ret;
|
---|
2344 | }
|
---|
2345 |
|
---|
2346 | /* GNRC DTLS Generate Cookie callback
|
---|
2347 | * return : number of bytes copied into buf, or error
|
---|
2348 | */
|
---|
2349 | #define GNRC_MAX_TOKEN_SIZE (32)
|
---|
2350 | int GNRC_GenerateCookie(WOLFSSL* ssl, byte *buf, int sz, void *_ctx)
|
---|
2351 | {
|
---|
2352 | sock_tls_t *ctx = (sock_tls_t *)_ctx;
|
---|
2353 | if (!ctx)
|
---|
2354 | return WOLFSSL_CBIO_ERR_GENERAL;
|
---|
2355 | byte token[GNRC_MAX_TOKEN_SIZE];
|
---|
2356 | byte digest[WC_SHA_DIGEST_SIZE];
|
---|
2357 | int ret = 0;
|
---|
2358 | size_t token_size = sizeof(sock_udp_ep_t);
|
---|
2359 | (void)ssl;
|
---|
2360 | if (token_size > GNRC_MAX_TOKEN_SIZE)
|
---|
2361 | token_size = GNRC_MAX_TOKEN_SIZE;
|
---|
2362 | XMEMSET(token, 0, GNRC_MAX_TOKEN_SIZE);
|
---|
2363 | XMEMCPY(token, &ctx->peer_addr, token_size);
|
---|
2364 | ret = wc_ShaHash(token, token_size, digest);
|
---|
2365 | if (ret != 0)
|
---|
2366 | return ret;
|
---|
2367 | if (sz > WC_SHA_DIGEST_SIZE)
|
---|
2368 | sz = WC_SHA_DIGEST_SIZE;
|
---|
2369 | XMEMCPY(buf, digest, sz);
|
---|
2370 | return sz;
|
---|
2371 | }
|
---|
2372 |
|
---|
2373 | #endif /* WOLFSSL_GNRC */
|
---|
2374 |
|
---|
2375 | #endif /* WOLFCRYPT_ONLY */
|
---|