summaryrefslogtreecommitdiff
path: root/FreeRTOS-Plus/Source/WolfSSL/wolfssl/wolfio.h
blob: 7e97accce0fd4df20cb3fe725010f1a8aba8ab01 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
/* io.h
 *
 * Copyright (C) 2006-2020 wolfSSL Inc.
 *
 * This file is part of wolfSSL.
 *
 * wolfSSL is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * wolfSSL is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
 */

/*!
    \file wolfssl/wolfio.h
*/

#ifndef WOLFSSL_IO_H
#define WOLFSSL_IO_H

#ifdef __cplusplus
    extern "C" {
#endif

/* Micrium uses NetSock I/O callbacks in wolfio.c */
#if !defined(WOLFSSL_USER_IO)
    /* OCSP and CRL_IO require HTTP client */
    #if defined(HAVE_OCSP) || defined(HAVE_CRL_IO)
        #ifndef HAVE_HTTP_CLIENT
            #define HAVE_HTTP_CLIENT
        #endif
    #endif
#endif

#if !defined(WOLFSSL_USER_IO)
    /* Micrium uses NetSock I/O callbacks in wolfio.c */
    #if !defined(USE_WOLFSSL_IO) && !defined(MICRIUM) && \
        !defined(WOLFSSL_CONTIKI) && !defined(WOLFSSL_NO_SOCK)
        #define USE_WOLFSSL_IO
    #endif
#endif


#if defined(USE_WOLFSSL_IO) || defined(HAVE_HTTP_CLIENT)

#ifdef HAVE_LIBZ
    #include "zlib.h"
#endif

#ifndef USE_WINDOWS_API
    #if defined(WOLFSSL_LWIP) && !defined(WOLFSSL_APACHE_MYNEWT)
        /* lwIP needs to be configured to use sockets API in this mode */
        /* LWIP_SOCKET 1 in lwip/opt.h or in build */
        #include "lwip/sockets.h"
        #ifndef LWIP_PROVIDE_ERRNO
            #include <errno.h>
            #define LWIP_PROVIDE_ERRNO 1
        #endif
    #elif defined(FREESCALE_MQX)
        #include <posix.h>
        #include <rtcs.h>
    #elif defined(FREESCALE_KSDK_MQX)
        #include <rtcs.h>
    #elif (defined(WOLFSSL_MDK_ARM) || defined(WOLFSSL_KEIL_TCP_NET))
        #include "rl_net.h"
        #include "errno.h"
    #elif defined(WOLFSSL_CMSIS_RTOS)
        #include "cmsis_os.h"
    #elif defined(WOLFSSL_CMSIS_RTOSv2)
        #include "cmsis_os2.h"
    #elif defined(WOLFSSL_TIRTOS)
        #include <sys/socket.h>
    #elif defined(FREERTOS_TCP)
        #include "FreeRTOS_Sockets.h"
    #elif defined(WOLFSSL_IAR_ARM)
        /* nothing */
    #elif defined(HAVE_NETX_BSD)
        #ifdef NETX_DUO
            #include "nxd_bsd.h"
        #else
            #include "nx_bsd.h"
        #endif
    #elif defined(WOLFSSL_VXWORKS)
        #include <sockLib.h>
        #include <errno.h>
    #elif defined(WOLFSSL_NUCLEUS_1_2)
        #include <externs.h>
        #include <errno.h>
    #elif defined(WOLFSSL_ATMEL)
        #include "socket/include/socket.h"
    #elif defined(INTIME_RTOS)
        #undef MIN
        #undef MAX
        #include <rt.h>
        #include <sys/types.h>
        #include <sys/socket.h>
        #include <netdb.h>
        #include <netinet/in.h>
        #include <io.h>
        /* <sys/socket.h> defines these, to avoid conflict, do undef */
        #undef SOCKADDR
        #undef SOCKADDR_IN
    #elif defined(WOLFSSL_PRCONNECT_PRO)
        #include <prconnect_pro/prconnect_pro.h>
        #include <sys/types.h>
        #include <errno.h>
        #include <unistd.h>
        #include <fcntl.h>
        #include <netdb.h>
        #include <sys/ioctl.h>
    #elif defined(WOLFSSL_SGX)
        #include <errno.h>
    #elif defined(WOLFSSL_APACHE_MYNEWT) && !defined(WOLFSSL_LWIP)
        #include <mn_socket/mn_socket.h>
    #elif defined(WOLFSSL_DEOS)
        #include <socketapi.h>
        #include <lwip-socket.h>
        #include <errno.h>
    #elif defined(WOLFSSL_ZEPHYR)
        #include <net/socket.h>
    #elif defined(HAVE_NETX)
        #include "nx_api.h"
        #include "errno.h"
    #elif !defined(WOLFSSL_NO_SOCK)
        #include <sys/types.h>
        #include <errno.h>
        #ifndef EBSNET
            #include <unistd.h>
        #endif
        #include <fcntl.h>
        #define XFCNTL(fd, flag, block) fcntl((fd), (flag), (block))

        #if defined(HAVE_RTP_SYS)
            #include <socket.h>
        #elif defined(EBSNET)
            #include "rtipapi.h"  /* errno */
            #include "socket.h"
        #elif !defined(DEVKITPRO) && !defined(WOLFSSL_PICOTCP) \
                && !defined(WOLFSSL_CONTIKI) && !defined(WOLFSSL_WICED) \
                && !defined(WOLFSSL_GNRC) && !defined(WOLFSSL_RIOT_OS)
            #include <sys/socket.h>
            #include <arpa/inet.h>
            #include <netinet/in.h>
            #include <netdb.h>
            #ifdef __PPU
                #include <netex/errno.h>
            #else
                #include <sys/ioctl.h>
            #endif
        #endif
    #endif

    #if defined(WOLFSSL_RENESAS_RA6M3G) /* Uses FREERTOS_TCP */
        #include <errno.h>
    #endif

#endif /* USE_WINDOWS_API */

#ifdef __sun
    #include <sys/filio.h>
#endif

#ifdef USE_WINDOWS_API
    /* no epipe yet */
    #ifndef WSAEPIPE
        #define WSAEPIPE       -12345
    #endif
    #define SOCKET_EWOULDBLOCK WSAEWOULDBLOCK
    #define SOCKET_EAGAIN      WSAETIMEDOUT
    #define SOCKET_ECONNRESET  WSAECONNRESET
    #define SOCKET_EINTR       WSAEINTR
    #define SOCKET_EPIPE       WSAEPIPE
    #define SOCKET_ECONNREFUSED WSAENOTCONN
    #define SOCKET_ECONNABORTED WSAECONNABORTED
#elif defined(__PPU)
    #define SOCKET_EWOULDBLOCK SYS_NET_EWOULDBLOCK
    #define SOCKET_EAGAIN      SYS_NET_EAGAIN
    #define SOCKET_ECONNRESET  SYS_NET_ECONNRESET
    #define SOCKET_EINTR       SYS_NET_EINTR
    #define SOCKET_EPIPE       SYS_NET_EPIPE
    #define SOCKET_ECONNREFUSED SYS_NET_ECONNREFUSED
    #define SOCKET_ECONNABORTED SYS_NET_ECONNABORTED
#elif defined(FREESCALE_MQX) || defined(FREESCALE_KSDK_MQX)
    #if MQX_USE_IO_OLD
        /* RTCS old I/O doesn't have an EWOULDBLOCK */
        #define SOCKET_EWOULDBLOCK  EAGAIN
        #define SOCKET_EAGAIN       EAGAIN
        #define SOCKET_ECONNRESET   RTCSERR_TCP_CONN_RESET
        #define SOCKET_EINTR        EINTR
        #define SOCKET_EPIPE        EPIPE
        #define SOCKET_ECONNREFUSED RTCSERR_TCP_CONN_REFUSED
        #define SOCKET_ECONNABORTED RTCSERR_TCP_CONN_ABORTED
    #else
        #define SOCKET_EWOULDBLOCK  NIO_EWOULDBLOCK
        #define SOCKET_EAGAIN       NIO_EAGAIN
        #define SOCKET_ECONNRESET   NIO_ECONNRESET
        #define SOCKET_EINTR        NIO_EINTR
        #define SOCKET_EPIPE        NIO_EPIPE
        #define SOCKET_ECONNREFUSED NIO_ECONNREFUSED
        #define SOCKET_ECONNABORTED NIO_ECONNABORTED
    #endif
#elif defined(WOLFSSL_MDK_ARM)|| defined(WOLFSSL_KEIL_TCP_NET)
        #define SOCKET_EWOULDBLOCK BSD_ERROR_WOULDBLOCK
        #define SOCKET_EAGAIN      BSD_ERROR_LOCKED
        #define SOCKET_ECONNRESET  BSD_ERROR_CLOSED
        #define SOCKET_EINTR       BSD_ERROR
        #define SOCKET_EPIPE       BSD_ERROR
        #define SOCKET_ECONNREFUSED BSD_ERROR
        #define SOCKET_ECONNABORTED BSD_ERROR
#elif defined(WOLFSSL_PICOTCP)
    #define SOCKET_EWOULDBLOCK  PICO_ERR_EAGAIN
    #define SOCKET_EAGAIN       PICO_ERR_EAGAIN
    #define SOCKET_ECONNRESET   PICO_ERR_ECONNRESET
    #define SOCKET_EINTR        PICO_ERR_EINTR
    #define SOCKET_EPIPE        PICO_ERR_EIO
    #define SOCKET_ECONNREFUSED PICO_ERR_ECONNREFUSED
    #define SOCKET_ECONNABORTED PICO_ERR_ESHUTDOWN
#elif defined(FREERTOS_TCP)
    #define SOCKET_EWOULDBLOCK FREERTOS_EWOULDBLOCK
    #define SOCKET_EAGAIN       FREERTOS_EWOULDBLOCK
    #define SOCKET_ECONNRESET   FREERTOS_SOCKET_ERROR
    #define SOCKET_EINTR        FREERTOS_SOCKET_ERROR
    #define SOCKET_EPIPE        FREERTOS_SOCKET_ERROR
    #define SOCKET_ECONNREFUSED FREERTOS_SOCKET_ERROR
    #define SOCKET_ECONNABORTED FREERTOS_SOCKET_ERROR
#elif defined(WOLFSSL_NUCLEUS_1_2)
    #define SOCKET_EWOULDBLOCK  NU_WOULD_BLOCK
    #define SOCKET_EAGAIN       NU_WOULD_BLOCK
    #define SOCKET_ECONNRESET   NU_NOT_CONNECTED
    #define SOCKET_EINTR        NU_NOT_CONNECTED
    #define SOCKET_EPIPE        NU_NOT_CONNECTED
    #define SOCKET_ECONNREFUSED NU_CONNECTION_REFUSED
    #define SOCKET_ECONNABORTED NU_NOT_CONNECTED
#elif defined(WOLFSSL_DEOS)
     #define SOCKET_EWOULDBLOCK EAGAIN
     #define SOCKET_EAGAIN      EAGAIN
     #define SOCKET_ECONNRESET  EINTR
     #define SOCKET_EINTR       EINTR
     #define SOCKET_EPIPE       EPIPE
     #define SOCKET_ECONNREFUSED SOCKET_ERROR
     #define SOCKET_ECONNABORTED SOCKET_ERROR
#elif defined(HAVE_NETX)
    #define SOCKET_EWOULDBLOCK NX_NOT_CONNECTED
    #define SOCKET_EAGAIN      NX_NOT_CONNECTED
    #define SOCKET_ECONNRESET  NX_NOT_CONNECTED
    #define SOCKET_EINTR       NX_NOT_CONNECTED
    #define SOCKET_EPIPE       NX_NOT_CONNECTED
    #define SOCKET_ECONNREFUSED NX_NOT_CONNECTED
    #define SOCKET_ECONNABORTED NX_NOT_CONNECTED
#else
    #define SOCKET_EWOULDBLOCK EWOULDBLOCK
    #define SOCKET_EAGAIN      EAGAIN
    #define SOCKET_ECONNRESET  ECONNRESET
    #define SOCKET_EINTR       EINTR
    #define SOCKET_EPIPE       EPIPE
    #define SOCKET_ECONNREFUSED ECONNREFUSED
    #define SOCKET_ECONNABORTED ECONNABORTED
#endif /* USE_WINDOWS_API */

#ifdef DEVKITPRO
    /* from network.h */
    int net_send(int, const void*, int, unsigned int);
    int net_recv(int, void*, int, unsigned int);
    #define SEND_FUNCTION net_send
    #define RECV_FUNCTION net_recv
#elif defined(WOLFSSL_LWIP) && !defined(WOLFSSL_APACHE_MYNEWT)
    #define SEND_FUNCTION lwip_send
    #define RECV_FUNCTION lwip_recv
#elif defined(WOLFSSL_PICOTCP)
    #define SEND_FUNCTION pico_send
    #define RECV_FUNCTION pico_recv
#elif defined(FREERTOS_TCP)
    #define RECV_FUNCTION(a,b,c,d)  FreeRTOS_recv((Socket_t)(a),(void*)(b), (size_t)(c), (BaseType_t)(d))
    #define SEND_FUNCTION(a,b,c,d)  FreeRTOS_send((Socket_t)(a),(void*)(b), (size_t)(c), (BaseType_t)(d))
#elif defined(WOLFSSL_VXWORKS)
    #define SEND_FUNCTION send
    #define RECV_FUNCTION recv
#elif defined(WOLFSSL_NUCLEUS_1_2)
    #define SEND_FUNCTION NU_Send
    #define RECV_FUNCTION NU_Recv
#elif defined(WOLFSSL_ZEPHYR)
    #ifndef WOLFSSL_MAX_SEND_SZ
        #define WOLFSSL_MAX_SEND_SZ       256
    #endif

    #define SEND_FUNCTION send
    #define RECV_FUNCTION recv
#else
    #define SEND_FUNCTION send
    #define RECV_FUNCTION recv
    #if !defined(HAVE_SOCKADDR) && !defined(WOLFSSL_NO_SOCK)
        #define HAVE_SOCKADDR
    #endif
#endif

#ifdef USE_WINDOWS_API
    typedef unsigned int SOCKET_T;
#else
    typedef int SOCKET_T;
#endif

#ifndef WOLFSSL_NO_SOCK
    #ifndef XSOCKLENT
        #ifdef USE_WINDOWS_API
            #define XSOCKLENT int
        #else
            #define XSOCKLENT socklen_t
        #endif
    #endif

    /* Socket Addr Support */
    #ifdef HAVE_SOCKADDR
        typedef struct sockaddr         SOCKADDR;
        typedef struct sockaddr_storage SOCKADDR_S;
        typedef struct sockaddr_in      SOCKADDR_IN;
        #ifdef WOLFSSL_IPV6
            typedef struct sockaddr_in6 SOCKADDR_IN6;
        #endif
        typedef struct hostent          HOSTENT;
    #endif /* HAVE_SOCKADDR */

    /* use gethostbyname for c99 */
    #if defined(HAVE_GETADDRINFO) && !defined(WOLF_C99)
        typedef struct addrinfo         ADDRINFO;
    #endif
#endif /* WOLFSSL_NO_SOCK */


/* IO API's */
#ifdef HAVE_IO_TIMEOUT
    WOLFSSL_API  int wolfIO_SetBlockingMode(SOCKET_T sockfd, int non_blocking);
    WOLFSSL_API void wolfIO_SetTimeout(int to_sec);
    WOLFSSL_API  int wolfIO_Select(SOCKET_T sockfd, int to_sec);
#endif
WOLFSSL_API  int wolfIO_TcpConnect(SOCKET_T* sockfd, const char* ip,
    unsigned short port, int to_sec);
WOLFSSL_API  int wolfIO_Send(SOCKET_T sd, char *buf, int sz, int wrFlags);
WOLFSSL_API  int wolfIO_Recv(SOCKET_T sd, char *buf, int sz, int rdFlags);

#endif /* USE_WOLFSSL_IO || HAVE_HTTP_CLIENT */

#ifndef WOLFSSL_NO_SOCK
#ifdef USE_WINDOWS_API
    #ifndef CloseSocket
        #define CloseSocket(s) closesocket(s)
    #endif
    #define StartTCP() { WSADATA wsd; WSAStartup(0x0002, &wsd); }
#elif defined(WOLFSSL_MDK_ARM) || defined(WOLFSSL_KEIL_TCP_NET)
    #ifndef CloseSocket
        extern int closesocket(int);
        #define CloseSocket(s) closesocket(s)
    #endif
    #define StartTCP()
#else
    #ifndef CloseSocket
        #define CloseSocket(s) close(s)
    #endif
    #define StartTCP()
    #ifdef FREERTOS_TCP_WINSIM
        extern int close(int);
    #endif
#endif
#endif /* WOLFSSL_NO_SOCK */


WOLFSSL_API int BioSend(WOLFSSL* ssl, char *buf, int sz, void *ctx);
WOLFSSL_API int BioReceive(WOLFSSL* ssl, char* buf, int sz, void* ctx);
#if defined(USE_WOLFSSL_IO)
    /* default IO callbacks */
    WOLFSSL_API int EmbedReceive(WOLFSSL* ssl, char* buf, int sz, void* ctx);
    WOLFSSL_API int EmbedSend(WOLFSSL* ssl, char* buf, int sz, void* ctx);

    #ifdef WOLFSSL_DTLS
        WOLFSSL_API int EmbedReceiveFrom(WOLFSSL* ssl, char* buf, int sz, void*);
        WOLFSSL_API int EmbedSendTo(WOLFSSL* ssl, char* buf, int sz, void* ctx);
        WOLFSSL_API int EmbedGenerateCookie(WOLFSSL* ssl, unsigned char* buf,
                                           int sz, void*);
        #ifdef WOLFSSL_MULTICAST
            WOLFSSL_API int EmbedReceiveFromMcast(WOLFSSL* ssl,
                                                  char* buf, int sz, void*);
        #endif /* WOLFSSL_MULTICAST */
        #ifdef WOLFSSL_SESSION_EXPORT
            WOLFSSL_API int EmbedGetPeer(WOLFSSL* ssl, char* ip, int* ipSz,
                                                unsigned short* port, int* fam);
            WOLFSSL_API int EmbedSetPeer(WOLFSSL* ssl, char* ip, int ipSz,
                                                  unsigned short port, int fam);
        #endif /* WOLFSSL_SESSION_EXPORT */
    #endif /* WOLFSSL_DTLS */
#endif /* USE_WOLFSSL_IO */

#ifdef HAVE_OCSP
    WOLFSSL_API int wolfIO_HttpBuildRequestOcsp(const char* domainName,
        const char* path, int ocspReqSz, unsigned char* buf, int bufSize);
    WOLFSSL_API int wolfIO_HttpProcessResponseOcsp(int sfd,
        unsigned char** respBuf, unsigned char* httpBuf, int httpBufSz,
        void* heap);

    WOLFSSL_API int EmbedOcspLookup(void*, const char*, int, unsigned char*,
                                   int, unsigned char**);
    WOLFSSL_API void EmbedOcspRespFree(void*, unsigned char*);
#endif

#ifdef HAVE_CRL_IO
    WOLFSSL_API int wolfIO_HttpBuildRequestCrl(const char* url, int urlSz,
        const char* domainName, unsigned char* buf, int bufSize);
    WOLFSSL_API int wolfIO_HttpProcessResponseCrl(WOLFSSL_CRL* crl, int sfd,
        unsigned char* httpBuf, int httpBufSz);

    WOLFSSL_API int EmbedCrlLookup(WOLFSSL_CRL* crl, const char* url,
        int urlSz);
#endif


#if defined(HAVE_HTTP_CLIENT)
    WOLFSSL_API  int wolfIO_DecodeUrl(const char* url, int urlSz, char* outName,
        char* outPath, unsigned short* outPort);

    WOLFSSL_API  int wolfIO_HttpBuildRequest(const char* reqType,
        const char* domainName, const char* path, int pathLen, int reqSz,
        const char* contentType, unsigned char* buf, int bufSize);
    WOLFSSL_LOCAL int wolfIO_HttpBuildRequest_ex(const char* reqType,
        const char* domainName, const char* path, int pathLen, int reqSz,
        const char* contentType, const char *exHdrs, unsigned char* buf, int bufSize);
    WOLFSSL_API  int wolfIO_HttpProcessResponse(int sfd, const char** appStrList,
        unsigned char** respBuf, unsigned char* httpBuf, int httpBufSz,
        int dynType, void* heap);
#endif /* HAVE_HTTP_CLIENT */


/* I/O callbacks */
typedef int (*CallbackIORecv)(WOLFSSL *ssl, char *buf, int sz, void *ctx);
typedef int (*CallbackIOSend)(WOLFSSL *ssl, char *buf, int sz, void *ctx);
WOLFSSL_API void wolfSSL_CTX_SetIORecv(WOLFSSL_CTX*, CallbackIORecv);
WOLFSSL_API void wolfSSL_CTX_SetIOSend(WOLFSSL_CTX*, CallbackIOSend);
WOLFSSL_API void wolfSSL_SSLSetIORecv(WOLFSSL*, CallbackIORecv);
WOLFSSL_API void wolfSSL_SSLSetIOSend(WOLFSSL*, CallbackIOSend);
/* deprecated old name */
#define wolfSSL_SetIORecv wolfSSL_CTX_SetIORecv
#define wolfSSL_SetIOSend wolfSSL_CTX_SetIOSend

WOLFSSL_API void wolfSSL_SetIOReadCtx( WOLFSSL* ssl, void *ctx);
WOLFSSL_API void wolfSSL_SetIOWriteCtx(WOLFSSL* ssl, void *ctx);

WOLFSSL_API void* wolfSSL_GetIOReadCtx( WOLFSSL* ssl);
WOLFSSL_API void* wolfSSL_GetIOWriteCtx(WOLFSSL* ssl);

WOLFSSL_API void wolfSSL_SetIOReadFlags( WOLFSSL* ssl, int flags);
WOLFSSL_API void wolfSSL_SetIOWriteFlags(WOLFSSL* ssl, int flags);


#ifdef HAVE_NETX
    WOLFSSL_LOCAL int NetX_Receive(WOLFSSL *ssl, char *buf, int sz, void *ctx);
    WOLFSSL_LOCAL int NetX_Send(WOLFSSL *ssl, char *buf, int sz, void *ctx);

    WOLFSSL_API void wolfSSL_SetIO_NetX(WOLFSSL* ssl, NX_TCP_SOCKET* nxsocket,
                                      ULONG waitoption);
#endif /* HAVE_NETX */

#ifdef MICRIUM
    WOLFSSL_LOCAL int MicriumSend(WOLFSSL* ssl, char* buf, int sz, void* ctx);
    WOLFSSL_LOCAL int MicriumReceive(WOLFSSL* ssl, char* buf, int sz,
                                     void* ctx);
    WOLFSSL_LOCAL int MicriumReceiveFrom(WOLFSSL* ssl, char* buf, int sz,
                                         void* ctx);
    WOLFSSL_LOCAL int MicriumSendTo(WOLFSSL* ssl, char* buf, int sz, void* ctx);
#endif /* MICRIUM */

#if defined(WOLFSSL_APACHE_MYNEWT) && !defined(WOLFSSL_LWIP)
    WOLFSSL_LOCAL int Mynewt_Receive(WOLFSSL *ssl, char *buf, int sz, void *ctx);
    WOLFSSL_LOCAL int Mynewt_Send(WOLFSSL* ssl, char *buf, int sz, void *ctx);
    WOLFSSL_API void wolfSSL_SetIO_Mynewt(WOLFSSL* ssl, struct mn_socket* mnSocket,
                                          struct mn_sockaddr_in* mnSockAddrIn);
#endif /* defined(WOLFSSL_APACHE_MYNEWT) && !defined(WOLFSSL_LWIP) */

#ifdef WOLFSSL_UIP

    struct uip_wolfssl_ctx {
        union socket_connector {
            struct tcp_socket tcp;
            struct udp_socket udp;
        } conn;
        WOLFSSL_CTX *ctx;
        WOLFSSL *ssl;
        uint8_t *input_databuf;
        uint8_t *output_databuf;
        uint8_t *ssl_rx_databuf;
        int ssl_rb_len;
        int ssl_rb_off;
        struct process *process;
        tcp_socket_data_callback_t input_callback;
        tcp_socket_event_callback_t event_callback;
        int closing;
        uip_ipaddr_t peer_addr;
        uint16_t peer_port;
    };

    typedef struct uip_wolfssl_ctx uip_wolfssl_ctx;

    WOLFSSL_LOCAL int uIPSend(WOLFSSL* ssl, char* buf, int sz, void* ctx);
    WOLFSSL_LOCAL int uIPReceive(WOLFSSL* ssl, char* buf, int sz,
                                     void* ctx);
    WOLFSSL_LOCAL int uIPReceiveFrom(WOLFSSL* ssl, char* buf, int sz,
                                         void* ctx);
    WOLFSSL_LOCAL int uIPSendTo(WOLFSSL* ssl, char* buf, int sz, void* ctx);

#endif

#ifdef WOLFSSL_GNRC
    #include <sock_types.h>
    #include <net/gnrc.h>
    #include <net/af.h>
    #include <net/sock.h>
    #include <net/gnrc/tcp.h>
    #include <net/gnrc/udp.h>

    struct gnrc_wolfssl_ctx {
        union socket_connector {
        #ifdef MODULE_SOCK_TCP
            sock_tcp_t tcp;
        #endif
            sock_udp_t udp;
        } conn;
        WOLFSSL_CTX *ctx;
        WOLFSSL *ssl;

        int closing;
        struct _sock_tl_ep peer_addr;
    };

    typedef struct gnrc_wolfssl_ctx sock_tls_t;

    WOLFSSL_LOCAL int GNRC_ReceiveFrom(WOLFSSL* ssl, char* buf, int sz,
                                     void* ctx);
    WOLFSSL_LOCAL int GNRC_SendTo(WOLFSSL* ssl, char* buf, int sz, void* ctx);

#endif


#ifdef WOLFSSL_DTLS
    typedef int (*CallbackGenCookie)(WOLFSSL* ssl, unsigned char* buf, int sz,
                                     void* ctx);
    WOLFSSL_API void  wolfSSL_CTX_SetGenCookie(WOLFSSL_CTX*, CallbackGenCookie);
    WOLFSSL_API void  wolfSSL_SetCookieCtx(WOLFSSL* ssl, void *ctx);
    WOLFSSL_API void* wolfSSL_GetCookieCtx(WOLFSSL* ssl);

    #ifdef WOLFSSL_SESSION_EXPORT
        typedef int (*CallbackGetPeer)(WOLFSSL* ssl, char* ip, int* ipSz,
                                            unsigned short* port, int* fam);
        typedef int (*CallbackSetPeer)(WOLFSSL* ssl, char* ip, int ipSz,
                                              unsigned short port, int fam);

        WOLFSSL_API void wolfSSL_CTX_SetIOGetPeer(WOLFSSL_CTX*, CallbackGetPeer);
        WOLFSSL_API void wolfSSL_CTX_SetIOSetPeer(WOLFSSL_CTX*, CallbackSetPeer);
    #endif /* WOLFSSL_SESSION_EXPORT */
#endif



#ifndef XINET_NTOP
    #define XINET_NTOP(a,b,c,d) inet_ntop((a),(b),(c),(d))
    #ifdef USE_WINDOWS_API /* Windows-friendly definition */
        #undef  XINET_NTOP
        #define XINET_NTOP(a,b,c,d) InetNtop((a),(b),(c),(d))
    #endif
#endif
#ifndef XINET_PTON
    #define XINET_PTON(a,b,c)   inet_pton((a),(b),(c))
    #ifdef USE_WINDOWS_API /* Windows-friendly definition */
        #undef  XINET_PTON
        #define XINET_PTON(a,b,c)   InetPton((a),(b),(c))
    #endif
#endif
#ifndef XHTONS
    #define XHTONS(a) htons((a))
#endif
#ifndef XNTOHS
    #define XNTOHS(a) ntohs((a))
#endif

#ifndef WOLFSSL_IP4
    #define WOLFSSL_IP4 AF_INET
#endif
#ifndef WOLFSSL_IP6
    #define WOLFSSL_IP6 AF_INET6
#endif


#ifdef __cplusplus
    }  /* extern "C" */
#endif

#endif /* WOLFSSL_IO_H */