PolarSSL v1.2.9
ssl.h
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1 
27 #ifndef POLARSSL_SSL_H
28 #define POLARSSL_SSL_H
29 
30 #include <time.h>
31 
32 #include "net.h"
33 #include "rsa.h"
34 #include "md5.h"
35 #include "sha1.h"
36 #include "sha2.h"
37 #include "sha4.h"
38 #include "x509.h"
39 #include "config.h"
40 
41 #if defined(POLARSSL_DHM_C)
42 #include "dhm.h"
43 #endif
44 
45 #if defined(POLARSSL_ZLIB_SUPPORT)
46 #include "zlib.h"
47 #endif
48 
49 #if defined(_MSC_VER) && !defined(inline)
50 #define inline _inline
51 #else
52 #if defined(__ARMCC_VERSION) && !defined(inline)
53 #define inline __inline
54 #endif /* __ARMCC_VERSION */
55 #endif /*_MSC_VER */
56 
57 /*
58  * SSL Error codes
59  */
60 #define POLARSSL_ERR_SSL_FEATURE_UNAVAILABLE -0x7080
61 #define POLARSSL_ERR_SSL_BAD_INPUT_DATA -0x7100
62 #define POLARSSL_ERR_SSL_INVALID_MAC -0x7180
63 #define POLARSSL_ERR_SSL_INVALID_RECORD -0x7200
64 #define POLARSSL_ERR_SSL_CONN_EOF -0x7280
65 #define POLARSSL_ERR_SSL_UNKNOWN_CIPHER -0x7300
66 #define POLARSSL_ERR_SSL_NO_CIPHER_CHOSEN -0x7380
67 #define POLARSSL_ERR_SSL_NO_SESSION_FOUND -0x7400
68 #define POLARSSL_ERR_SSL_NO_CLIENT_CERTIFICATE -0x7480
69 #define POLARSSL_ERR_SSL_CERTIFICATE_TOO_LARGE -0x7500
70 #define POLARSSL_ERR_SSL_CERTIFICATE_REQUIRED -0x7580
71 #define POLARSSL_ERR_SSL_PRIVATE_KEY_REQUIRED -0x7600
72 #define POLARSSL_ERR_SSL_CA_CHAIN_REQUIRED -0x7680
73 #define POLARSSL_ERR_SSL_UNEXPECTED_MESSAGE -0x7700
74 #define POLARSSL_ERR_SSL_FATAL_ALERT_MESSAGE -0x7780
75 #define POLARSSL_ERR_SSL_PEER_VERIFY_FAILED -0x7800
76 #define POLARSSL_ERR_SSL_PEER_CLOSE_NOTIFY -0x7880
77 #define POLARSSL_ERR_SSL_BAD_HS_CLIENT_HELLO -0x7900
78 #define POLARSSL_ERR_SSL_BAD_HS_SERVER_HELLO -0x7980
79 #define POLARSSL_ERR_SSL_BAD_HS_CERTIFICATE -0x7A00
80 #define POLARSSL_ERR_SSL_BAD_HS_CERTIFICATE_REQUEST -0x7A80
81 #define POLARSSL_ERR_SSL_BAD_HS_SERVER_KEY_EXCHANGE -0x7B00
82 #define POLARSSL_ERR_SSL_BAD_HS_SERVER_HELLO_DONE -0x7B80
83 #define POLARSSL_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE -0x7C00
84 #define POLARSSL_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_DHM_RP -0x7C80
85 #define POLARSSL_ERR_SSL_BAD_HS_CLIENT_KEY_EXCHANGE_DHM_CS -0x7D00
86 #define POLARSSL_ERR_SSL_BAD_HS_CERTIFICATE_VERIFY -0x7D80
87 #define POLARSSL_ERR_SSL_BAD_HS_CHANGE_CIPHER_SPEC -0x7E00
88 #define POLARSSL_ERR_SSL_BAD_HS_FINISHED -0x7E80
89 #define POLARSSL_ERR_SSL_MALLOC_FAILED -0x7F00
90 #define POLARSSL_ERR_SSL_HW_ACCEL_FAILED -0x7F80
91 #define POLARSSL_ERR_SSL_HW_ACCEL_FALLTHROUGH -0x6F80
92 #define POLARSSL_ERR_SSL_COMPRESSION_FAILED -0x6F00
93 #define POLARSSL_ERR_SSL_BAD_HS_PROTOCOL_VERSION -0x6E80
95 /*
96  * Various constants
97  */
98 #define SSL_MAJOR_VERSION_3 3
99 #define SSL_MINOR_VERSION_0 0
100 #define SSL_MINOR_VERSION_1 1
101 #define SSL_MINOR_VERSION_2 2
102 #define SSL_MINOR_VERSION_3 3
104 #define SSL_IS_CLIENT 0
105 #define SSL_IS_SERVER 1
106 #define SSL_COMPRESS_NULL 0
107 #define SSL_COMPRESS_DEFLATE 1
108 
109 #define SSL_VERIFY_NONE 0
110 #define SSL_VERIFY_OPTIONAL 1
111 #define SSL_VERIFY_REQUIRED 2
112 
113 #define SSL_INITIAL_HANDSHAKE 0
114 #define SSL_RENEGOTIATION 1
115 
116 #define SSL_LEGACY_RENEGOTIATION 0
117 #define SSL_SECURE_RENEGOTIATION 1
118 
119 #define SSL_RENEGOTIATION_DISABLED 0
120 #define SSL_RENEGOTIATION_ENABLED 1
121 
122 #define SSL_LEGACY_NO_RENEGOTIATION 0
123 #define SSL_LEGACY_ALLOW_RENEGOTIATION 1
124 #define SSL_LEGACY_BREAK_HANDSHAKE 2
125 
126 /*
127  * Size of the input / output buffer.
128  * Note: the RFC defines the default size of SSL / TLS messages. If you
129  * change the value here, other clients / servers may not be able to
130  * communicate with you anymore. Only change this value if you control
131  * both sides of the connection and have it reduced at both sides!
132  */
133 #if !defined(POLARSSL_CONFIG_OPTIONS)
134 #define SSL_MAX_CONTENT_LEN 16384
135 #endif /* !POLARSSL_CONFIG_OPTIONS */
136 
137 /*
138  * Allow an extra 512 bytes for the record header
139  * and encryption overhead (counter + MAC + padding)
140  * and allow for a maximum of 1024 of compression expansion if
141  * enabled.
142  */
143 #if defined(POLARSSL_ZLIB_SUPPORT)
144 #define SSL_COMPRESSION_ADD 1024
145 #else
146 #define SSL_COMPRESSION_ADD 0
147 #endif
148 
149 #define SSL_BUFFER_LEN (SSL_MAX_CONTENT_LEN + SSL_COMPRESSION_ADD + 512)
150 
151 /*
152  * Supported ciphersuites (Official IANA names)
153  */
154 #define TLS_RSA_WITH_NULL_MD5 0x01
155 #define TLS_RSA_WITH_NULL_SHA 0x02
156 #define TLS_RSA_WITH_NULL_SHA256 0x3B
157 #define TLS_RSA_WITH_DES_CBC_SHA 0x09
158 #define TLS_DHE_RSA_WITH_DES_CBC_SHA 0x15
160 #define TLS_RSA_WITH_RC4_128_MD5 0x04
161 #define TLS_RSA_WITH_RC4_128_SHA 0x05
162 
163 #define TLS_RSA_WITH_3DES_EDE_CBC_SHA 0x0A
164 #define TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA 0x16
165 
166 #define TLS_RSA_WITH_AES_128_CBC_SHA 0x2F
167 #define TLS_DHE_RSA_WITH_AES_128_CBC_SHA 0x33
168 #define TLS_RSA_WITH_AES_256_CBC_SHA 0x35
169 #define TLS_DHE_RSA_WITH_AES_256_CBC_SHA 0x39
170 #define TLS_RSA_WITH_AES_128_CBC_SHA256 0x3C
171 #define TLS_RSA_WITH_AES_256_CBC_SHA256 0x3D
172 #define TLS_DHE_RSA_WITH_AES_128_CBC_SHA256 0x67
173 #define TLS_DHE_RSA_WITH_AES_256_CBC_SHA256 0x6B
175 #define TLS_RSA_WITH_CAMELLIA_128_CBC_SHA 0x41
176 #define TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA 0x45
177 #define TLS_RSA_WITH_CAMELLIA_256_CBC_SHA 0x84
178 #define TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA 0x88
179 #define TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256 0xBA
180 #define TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256 0xBE
181 #define TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256 0xC0
182 #define TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256 0xC4
184 #define TLS_RSA_WITH_AES_128_GCM_SHA256 0x9C
185 #define TLS_RSA_WITH_AES_256_GCM_SHA384 0x9D
186 #define TLS_DHE_RSA_WITH_AES_128_GCM_SHA256 0x9E
187 #define TLS_DHE_RSA_WITH_AES_256_GCM_SHA384 0x9F
188 
189 #define SSL_EMPTY_RENEGOTIATION_INFO 0xFF
191 /*
192  * Supported Signature and Hash algorithms (For TLS 1.2)
193  */
194 #define SSL_HASH_NONE 0
195 #define SSL_HASH_MD5 1
196 #define SSL_HASH_SHA1 2
197 #define SSL_HASH_SHA224 3
198 #define SSL_HASH_SHA256 4
199 #define SSL_HASH_SHA384 5
200 #define SSL_HASH_SHA512 6
201 
202 #define SSL_SIG_RSA 1
203 
204 /*
205  * Client Certificate Types
206  */
207 #define SSL_CERT_TYPE_RSA_SIGN 1
208 
209 /*
210  * Message, alert and handshake types
211  */
212 #define SSL_MSG_CHANGE_CIPHER_SPEC 20
213 #define SSL_MSG_ALERT 21
214 #define SSL_MSG_HANDSHAKE 22
215 #define SSL_MSG_APPLICATION_DATA 23
216 
217 #define SSL_ALERT_LEVEL_WARNING 1
218 #define SSL_ALERT_LEVEL_FATAL 2
219 
220 #define SSL_ALERT_MSG_CLOSE_NOTIFY 0 /* 0x00 */
221 #define SSL_ALERT_MSG_UNEXPECTED_MESSAGE 10 /* 0x0A */
222 #define SSL_ALERT_MSG_BAD_RECORD_MAC 20 /* 0x14 */
223 #define SSL_ALERT_MSG_DECRYPTION_FAILED 21 /* 0x15 */
224 #define SSL_ALERT_MSG_RECORD_OVERFLOW 22 /* 0x16 */
225 #define SSL_ALERT_MSG_DECOMPRESSION_FAILURE 30 /* 0x1E */
226 #define SSL_ALERT_MSG_HANDSHAKE_FAILURE 40 /* 0x28 */
227 #define SSL_ALERT_MSG_NO_CERT 41 /* 0x29 */
228 #define SSL_ALERT_MSG_BAD_CERT 42 /* 0x2A */
229 #define SSL_ALERT_MSG_UNSUPPORTED_CERT 43 /* 0x2B */
230 #define SSL_ALERT_MSG_CERT_REVOKED 44 /* 0x2C */
231 #define SSL_ALERT_MSG_CERT_EXPIRED 45 /* 0x2D */
232 #define SSL_ALERT_MSG_CERT_UNKNOWN 46 /* 0x2E */
233 #define SSL_ALERT_MSG_ILLEGAL_PARAMETER 47 /* 0x2F */
234 #define SSL_ALERT_MSG_UNKNOWN_CA 48 /* 0x30 */
235 #define SSL_ALERT_MSG_ACCESS_DENIED 49 /* 0x31 */
236 #define SSL_ALERT_MSG_DECODE_ERROR 50 /* 0x32 */
237 #define SSL_ALERT_MSG_DECRYPT_ERROR 51 /* 0x33 */
238 #define SSL_ALERT_MSG_EXPORT_RESTRICTION 60 /* 0x3C */
239 #define SSL_ALERT_MSG_PROTOCOL_VERSION 70 /* 0x46 */
240 #define SSL_ALERT_MSG_INSUFFICIENT_SECURITY 71 /* 0x47 */
241 #define SSL_ALERT_MSG_INTERNAL_ERROR 80 /* 0x50 */
242 #define SSL_ALERT_MSG_USER_CANCELED 90 /* 0x5A */
243 #define SSL_ALERT_MSG_NO_RENEGOTIATION 100 /* 0x64 */
244 #define SSL_ALERT_MSG_UNSUPPORTED_EXT 110 /* 0x6E */
245 #define SSL_ALERT_MSG_UNRECOGNIZED_NAME 112 /* 0x70 */
246 
247 #define SSL_HS_HELLO_REQUEST 0
248 #define SSL_HS_CLIENT_HELLO 1
249 #define SSL_HS_SERVER_HELLO 2
250 #define SSL_HS_CERTIFICATE 11
251 #define SSL_HS_SERVER_KEY_EXCHANGE 12
252 #define SSL_HS_CERTIFICATE_REQUEST 13
253 #define SSL_HS_SERVER_HELLO_DONE 14
254 #define SSL_HS_CERTIFICATE_VERIFY 15
255 #define SSL_HS_CLIENT_KEY_EXCHANGE 16
256 #define SSL_HS_FINISHED 20
257 
258 /*
259  * TLS extensions
260  */
261 #define TLS_EXT_SERVERNAME 0
262 #define TLS_EXT_SERVERNAME_HOSTNAME 0
263 
264 #define TLS_EXT_SIG_ALG 13
265 
266 #define TLS_EXT_RENEGOTIATION_INFO 0xFF01
267 
268 
269 /*
270  * Generic function pointers for allowing external RSA private key
271  * implementations.
272  */
273 typedef int (*rsa_decrypt_func)( void *ctx,
274  int (*f_rng)(void *, unsigned char *, size_t),
275  void *p_rng, int mode, size_t *olen,
276  const unsigned char *input, unsigned char *output,
277  size_t output_max_len );
278 typedef int (*rsa_sign_func)( void *ctx,
279  int (*f_rng)(void *, unsigned char *, size_t), void *p_rng,
280  int mode, int hash_id, unsigned int hashlen,
281  const unsigned char *hash, unsigned char *sig );
282 typedef size_t (*rsa_key_len_func)( void *ctx );
283 
284 /*
285  * SSL state machine
286  */
287 typedef enum
288 {
306 }
307 ssl_states;
308 
309 typedef struct _ssl_session ssl_session;
310 typedef struct _ssl_context ssl_context;
313 
314 /*
315  * This structure is used for storing current session data.
316  */
318 {
319  time_t start;
322  size_t length;
323  unsigned char id[32];
324  unsigned char master[48];
326 };
327 
328 /*
329  * This structure contains a full set of runtime transform parameters
330  * either in negotiation or active.
331  */
333 {
334  /*
335  * Session specific crypto layer
336  */
337  unsigned int keylen;
338  size_t minlen;
339  size_t ivlen;
340  size_t fixed_ivlen;
341  size_t maclen;
343  unsigned char iv_enc[16];
344  unsigned char iv_dec[16];
346  unsigned char mac_enc[32];
347  unsigned char mac_dec[32];
349  uint32_t ctx_enc[136];
350  uint32_t ctx_dec[136];
352  /*
353  * Session specific compression layer
354  */
355 #if defined(POLARSSL_ZLIB_SUPPORT)
356  z_stream ctx_deflate;
357  z_stream ctx_inflate;
358 #endif
359 };
360 
361 /*
362  * This structure contains the parameters only needed during handshake.
363  */
365 {
366  /*
367  * Handshake specific crypto variables
368  */
369  int sig_alg;
370  int cert_type;
372 #if defined(POLARSSL_DHM_C)
374 #endif
375 
376  /*
377  * Checksum contexts
378  */
383 
384  void (*update_checksum)(ssl_context *, unsigned char *, size_t);
385  void (*calc_verify)(ssl_context *, unsigned char *);
386  void (*calc_finished)(ssl_context *, unsigned char *, int);
387  int (*tls_prf)(unsigned char *, size_t, char *,
388  unsigned char *, size_t,
389  unsigned char *, size_t);
390 
391  size_t pmslen;
393  unsigned char randbytes[64];
397  int resume;
398 };
399 
401 {
402  /*
403  * Miscellaneous
404  */
405  int state;
408  int major_ver;
409  int minor_ver;
416  /*
417  * Callbacks (RNG, debug, I/O, verification)
418  */
419  int (*f_rng)(void *, unsigned char *, size_t);
420  void (*f_dbg)(void *, int, const char *);
421  int (*f_recv)(void *, unsigned char *, size_t);
422  int (*f_send)(void *, const unsigned char *, size_t);
423  int (*f_vrfy)(void *, x509_cert *, int, int *);
424  int (*f_get_cache)(void *, ssl_session *);
425  int (*f_set_cache)(void *, const ssl_session *);
426  int (*f_sni)(void *, ssl_context *, const unsigned char *, size_t);
427 
428  void *p_rng;
429  void *p_dbg;
430  void *p_recv;
431  void *p_send;
432  void *p_vrfy;
433  void *p_get_cache;
434  void *p_set_cache;
435  void *p_sni;
436  void *p_hw_data;
438  /*
439  * Session layer
440  */
449  /*
450  * Record layer transformations
451  */
457  /*
458  * Record layer (incoming data)
459  */
460  unsigned char *in_ctr;
461  unsigned char *in_hdr;
462  unsigned char *in_msg;
463  unsigned char *in_offt;
466  size_t in_msglen;
467  size_t in_left;
469  size_t in_hslen;
470  int nb_zero;
472  /*
473  * Record layer (outgoing data)
474  */
475  unsigned char *out_ctr;
476  unsigned char *out_hdr;
477  unsigned char *out_msg;
480  size_t out_msglen;
481  size_t out_left;
483  /*
484  * PKI layer
485  */
486  void *rsa_key;
494  const char *peer_cn;
496  /*
497  * User settings
498  */
499  int endpoint;
500  int authmode;
505  const int **ciphersuites;
507 #if defined(POLARSSL_DHM_C)
510 #endif
511 
512  /*
513  * TLS extensions
514  */
515  unsigned char *hostname;
516  size_t hostname_len;
517 
518  /*
519  * Secure renegotiation
520  */
524  char own_verify_data[36];
525  char peer_verify_data[36];
526 };
527 
528 #ifdef __cplusplus
529 extern "C" {
530 #endif
531 
532 extern const int ssl_default_ciphersuites[];
533 
534 #if defined(POLARSSL_SSL_HW_RECORD_ACCEL)
535 extern int (*ssl_hw_record_init)(ssl_context *ssl,
536  const unsigned char *key_enc, const unsigned char *key_dec,
537  const unsigned char *iv_enc, const unsigned char *iv_dec,
538  const unsigned char *mac_enc, const unsigned char *mac_dec);
539 extern int (*ssl_hw_record_reset)(ssl_context *ssl);
540 extern int (*ssl_hw_record_write)(ssl_context *ssl);
541 extern int (*ssl_hw_record_read)(ssl_context *ssl);
542 extern int (*ssl_hw_record_finish)(ssl_context *ssl);
543 #endif
544 
551 static inline const int *ssl_list_ciphersuites( void )
552 {
554 }
555 
564 const char *ssl_get_ciphersuite_name( const int ciphersuite_id );
565 
574 int ssl_get_ciphersuite_id( const char *ciphersuite_name );
575 
584 int ssl_init( ssl_context *ssl );
585 
596 int ssl_session_reset( ssl_context *ssl );
597 
604 void ssl_set_endpoint( ssl_context *ssl, int endpoint );
605 
623 void ssl_set_authmode( ssl_context *ssl, int authmode );
624 
636 void ssl_set_verify( ssl_context *ssl,
637  int (*f_vrfy)(void *, x509_cert *, int, int *),
638  void *p_vrfy );
639 
647 void ssl_set_rng( ssl_context *ssl,
648  int (*f_rng)(void *, unsigned char *, size_t),
649  void *p_rng );
650 
658 void ssl_set_dbg( ssl_context *ssl,
659  void (*f_dbg)(void *, int, const char *),
660  void *p_dbg );
661 
671 void ssl_set_bio( ssl_context *ssl,
672  int (*f_recv)(void *, unsigned char *, size_t), void *p_recv,
673  int (*f_send)(void *, const unsigned char *, size_t), void *p_send );
674 
713  int (*f_get_cache)(void *, ssl_session *), void *p_get_cache,
714  int (*f_set_cache)(void *, const ssl_session *), void *p_set_cache );
715 
728 void ssl_set_session( ssl_context *ssl, const ssl_session *session );
729 
738 void ssl_set_ciphersuites( ssl_context *ssl, const int *ciphersuites );
739 
755  const int *ciphersuites,
756  int major, int minor );
757 
766 void ssl_set_ca_chain( ssl_context *ssl, x509_cert *ca_chain,
767  x509_crl *ca_crl, const char *peer_cn );
768 
780 void ssl_set_own_cert( ssl_context *ssl, x509_cert *own_cert,
781  rsa_context *rsa_key );
782 
802 void ssl_set_own_cert_alt( ssl_context *ssl, x509_cert *own_cert,
803  void *rsa_key,
804  rsa_decrypt_func rsa_decrypt,
805  rsa_sign_func rsa_sign,
806  rsa_key_len_func rsa_key_len );
807 
808 #if defined(POLARSSL_DHM_C)
809 
820 int ssl_set_dh_param( ssl_context *ssl, const char *dhm_P, const char *dhm_G );
821 
831 int ssl_set_dh_param_ctx( ssl_context *ssl, dhm_context *dhm_ctx );
832 #endif
833 
844 int ssl_set_hostname( ssl_context *ssl, const char *hostname );
845 
865 void ssl_set_sni( ssl_context *ssl,
866  int (*f_sni)(void *, ssl_context *, const unsigned char *,
867  size_t),
868  void *p_sni );
869 
879 void ssl_set_max_version( ssl_context *ssl, int major, int minor );
880 
881 
892 void ssl_set_min_version( ssl_context *ssl, int major, int minor );
893 
907 void ssl_set_renegotiation( ssl_context *ssl, int renegotiation );
908 
936 void ssl_legacy_renegotiation( ssl_context *ssl, int allow_legacy );
937 
945 size_t ssl_get_bytes_avail( const ssl_context *ssl );
946 
958 int ssl_get_verify_result( const ssl_context *ssl );
959 
967 const char *ssl_get_ciphersuite( const ssl_context *ssl );
968 
976 const char *ssl_get_version( const ssl_context *ssl );
977 
992 const x509_cert *ssl_get_peer_cert( const ssl_context *ssl );
993 
1002 int ssl_handshake( ssl_context *ssl );
1003 
1016 int ssl_handshake_step( ssl_context *ssl );
1017 
1025 int ssl_renegotiate( ssl_context *ssl );
1026 
1037 int ssl_read( ssl_context *ssl, unsigned char *buf, size_t len );
1038 
1053 int ssl_write( ssl_context *ssl, const unsigned char *buf, size_t len );
1054 
1066  unsigned char level,
1067  unsigned char message );
1073 int ssl_close_notify( ssl_context *ssl );
1074 
1080 void ssl_free( ssl_context *ssl );
1081 
1088 void ssl_session_free( ssl_session *session );
1089 
1096 void ssl_transform_free( ssl_transform *transform );
1097 
1104 void ssl_handshake_free( ssl_handshake_params *handshake );
1105 
1106 /*
1107  * Internal functions (do not call directly)
1108  */
1111 void ssl_handshake_wrapup( ssl_context *ssl );
1112 
1114 
1115 int ssl_derive_keys( ssl_context *ssl );
1116 
1117 int ssl_read_record( ssl_context *ssl );
1122 int ssl_fetch_input( ssl_context *ssl, size_t nb_want );
1123 
1124 int ssl_write_record( ssl_context *ssl );
1125 int ssl_flush_output( ssl_context *ssl );
1126 
1129 
1132 
1133 int ssl_parse_finished( ssl_context *ssl );
1134 int ssl_write_finished( ssl_context *ssl );
1135 
1136 void ssl_optimize_checksum( ssl_context *ssl, int ciphersuite );
1137 int ssl_get_ciphersuite_min_version( const int ciphersuite_id );
1138 
1139 #ifdef __cplusplus
1140 }
1141 #endif
1142 
1143 #endif /* ssl.h */
unsigned char * hostname
Definition: ssl.h:515
ssl_session * session_in
Definition: ssl.h:441
size_t length
Definition: ssl.h:322
void * p_set_cache
Definition: ssl.h:434
int ciphersuite
Definition: ssl.h:320
size_t in_hslen
Definition: ssl.h:469
int ssl_send_alert_message(ssl_context *ssl, unsigned char level, unsigned char message)
Send an alert message.
void(* f_dbg)(void *, int, const char *)
Definition: ssl.h:420
int(* f_rng)(void *, unsigned char *, size_t)
Definition: ssl.h:419
SHA-256 context structure.
Definition: sha2.h:50
size_t ivlen
Definition: ssl.h:339
int major_ver
Definition: ssl.h:408
void(* update_checksum)(ssl_context *, unsigned char *, size_t)
Definition: ssl.h:384
int(* tls_prf)(unsigned char *, size_t, char *, unsigned char *, size_t, unsigned char *, size_t)
Definition: ssl.h:387
SHA-1 context structure.
Definition: sha1.h:50
sha1_context fin_sha1
Definition: ssl.h:380
int compression
Definition: ssl.h:321
Network communication functions.
const int ** ciphersuites
Definition: ssl.h:505
int state
Definition: ssl.h:405
const char * peer_cn
Definition: ssl.h:494
#define POLARSSL_MPI_MAX_SIZE
Maximum number of bytes for usable MPIs.
Definition: bignum.h:87
unsigned char master[48]
Definition: ssl.h:324
char peer_verify_data[36]
Definition: ssl.h:525
void ssl_set_own_cert(ssl_context *ssl, x509_cert *own_cert, rsa_context *rsa_key)
Set own certificate chain and private key.
ssl_transform * transform_out
Definition: ssl.h:453
int ssl_get_ciphersuite_min_version(const int ciphersuite_id)
int(* f_sni)(void *, ssl_context *, const unsigned char *, size_t)
Definition: ssl.h:426
int nb_zero
Definition: ssl.h:470
void(* calc_verify)(ssl_context *, unsigned char *)
Definition: ssl.h:385
DHM context structure.
Definition: dhm.h:136
x509_cert * peer_cert
Definition: ssl.h:325
void ssl_set_verify(ssl_context *ssl, int(*f_vrfy)(void *, x509_cert *, int, int *), void *p_vrfy)
Set the verification callback (Optional).
ssl_session * session_negotiate
Definition: ssl.h:444
x509_cert * ca_chain
Definition: ssl.h:492
ssl_session * session
Definition: ssl.h:443
void ssl_legacy_renegotiation(ssl_context *ssl, int allow_legacy)
Prevent or allow legacy renegotiation.
int ssl_parse_certificate(ssl_context *ssl)
void ssl_set_dbg(ssl_context *ssl, void(*f_dbg)(void *, int, const char *), void *p_dbg)
Set the debug callback.
void ssl_set_own_cert_alt(ssl_context *ssl, x509_cert *own_cert, void *rsa_key, rsa_decrypt_func rsa_decrypt, rsa_sign_func rsa_sign, rsa_key_len_func rsa_key_len)
Set own certificate and alternate non-PolarSSL private key and handling callbacks, such as the PKCS#11 wrappers or any other external private key handler.
unsigned char iv_enc[16]
Definition: ssl.h:343
size_t out_msglen
Definition: ssl.h:480
ssl_transform * transform_in
Definition: ssl.h:452
int ssl_parse_finished(ssl_context *ssl)
void * p_rng
Definition: ssl.h:428
rsa_sign_func rsa_sign
Definition: ssl.h:488
mpi dhm_P
Definition: ssl.h:508
ssl_states
Definition: ssl.h:287
void ssl_session_free(ssl_session *session)
Free referenced items in an SSL session including the peer certificate and clear memory.
int ssl_write_finished(ssl_context *ssl)
Configuration options (set of defines)
ssl_transform * transform
Definition: ssl.h:454
unsigned char * out_ctr
Definition: ssl.h:475
void ssl_handshake_wrapup(ssl_context *ssl)
char own_verify_data[36]
Definition: ssl.h:524
int(* f_send)(void *, const unsigned char *, size_t)
Definition: ssl.h:422
size_t in_msglen
Definition: ssl.h:466
int ssl_set_dh_param_ctx(ssl_context *ssl, dhm_context *dhm_ctx)
Set the Diffie-Hellman public P and G values, read from existing context (server-side only) ...
unsigned char * in_hdr
Definition: ssl.h:461
int secure_renegotiation
Definition: ssl.h:521
time_t start
Definition: ssl.h:319
MPI structure.
Definition: bignum.h:164
int(* rsa_decrypt_func)(void *ctx, int(*f_rng)(void *, unsigned char *, size_t), void *p_rng, int mode, size_t *olen, const unsigned char *input, unsigned char *output, size_t output_max_len)
Definition: ssl.h:273
Container for an X.509 certificate.
Definition: x509.h:288
int ssl_handshake_server_step(ssl_context *ssl)
void * p_vrfy
Definition: ssl.h:432
void ssl_set_max_version(ssl_context *ssl, int major, int minor)
Set the maximum supported version sent from the client side.
void * p_recv
Definition: ssl.h:430
const int ssl_default_ciphersuites[]
void ssl_set_ciphersuites_for_version(ssl_context *ssl, const int *ciphersuites, int major, int minor)
Set the list of allowed ciphersuites for a specific version of the protocol.
int ssl_init(ssl_context *ssl)
Initialize an SSL context.
int max_major_ver
Definition: ssl.h:411
int ssl_get_ciphersuite_id(const char *ciphersuite_name)
Return the ID of the ciphersuite associated with the given name.
unsigned int keylen
Definition: ssl.h:337
int max_minor_ver
Definition: ssl.h:412
unsigned char premaster[POLARSSL_MPI_MAX_SIZE]
Definition: ssl.h:394
void * p_hw_data
Definition: ssl.h:436
unsigned char * in_ctr
Definition: ssl.h:460
ssl_handshake_params * handshake
Definition: ssl.h:446
size_t fixed_ivlen
Definition: ssl.h:340
int ssl_write_certificate(ssl_context *ssl)
size_t(* rsa_key_len_func)(void *ctx)
Definition: ssl.h:282
RSA context structure.
Definition: rsa.h:135
SHA-384 and SHA-512 cryptographic hash function.
rsa_key_len_func rsa_key_len
Definition: ssl.h:489
int in_msgtype
Definition: ssl.h:465
size_t verify_data_len
Definition: ssl.h:523
const char * ssl_get_ciphersuite(const ssl_context *ssl)
Return the name of the current ciphersuite.
mpi dhm_G
Definition: ssl.h:509
const char * ssl_get_version(const ssl_context *ssl)
Return the current SSL version (SSLv3/TLSv1/etc)
void ssl_set_renegotiation(ssl_context *ssl, int renegotiation)
Enable / Disable renegotiation support for connection when initiated by peer (Default: SSL_RENEGOTIAT...
int min_minor_ver
Definition: ssl.h:414
unsigned char * out_msg
Definition: ssl.h:477
sha2_context fin_sha2
Definition: ssl.h:381
SHA-224 and SHA-256 cryptographic hash function.
int client_auth
Definition: ssl.h:501
void * p_dbg
Definition: ssl.h:429
void * p_send
Definition: ssl.h:431
x509_crl * ca_crl
Definition: ssl.h:493
sha4_context fin_sha4
Definition: ssl.h:382
int ssl_handshake_client_step(ssl_context *ssl)
size_t maclen
Definition: ssl.h:341
unsigned char * out_hdr
Definition: ssl.h:476
int(* f_vrfy)(void *, x509_cert *, int, int *)
Definition: ssl.h:423
void ssl_set_endpoint(ssl_context *ssl, int endpoint)
Set the current endpoint type.
void ssl_set_ciphersuites(ssl_context *ssl, const int *ciphersuites)
Set the list of allowed ciphersuites (Default: ssl_default_ciphersuites) (Overrides all version speci...
void ssl_set_rng(ssl_context *ssl, int(*f_rng)(void *, unsigned char *, size_t), void *p_rng)
Set the random number generator callback.
void * p_get_cache
Definition: ssl.h:433
void ssl_set_bio(ssl_context *ssl, int(*f_recv)(void *, unsigned char *, size_t), void *p_recv, int(*f_send)(void *, const unsigned char *, size_t), void *p_send)
Set the underlying BIO read and write callbacks.
void ssl_free(ssl_context *ssl)
Free referenced items in an SSL context and clear memory.
int(* rsa_sign_func)(void *ctx, int(*f_rng)(void *, unsigned char *, size_t), void *p_rng, int mode, int hash_id, unsigned int hashlen, const unsigned char *hash, unsigned char *sig)
Definition: ssl.h:278
void ssl_handshake_free(ssl_handshake_params *handshake)
Free referenced items in an SSL handshake context and clear memory.
int authmode
Definition: ssl.h:500
int ssl_flush_output(ssl_context *ssl)
int ssl_handshake(ssl_context *ssl)
Perform the SSL handshake.
unsigned char * in_offt
Definition: ssl.h:463
rsa_decrypt_func rsa_decrypt
Definition: ssl.h:487
void ssl_set_min_version(ssl_context *ssl, int major, int minor)
Set the minimum accepted SSL/TLS protocol version (Default: SSL_MAJOR_VERSION_3, SSL_MINOR_VERSION_0)...
Diffie-Hellman-Merkle key exchange.
unsigned char * in_msg
Definition: ssl.h:462
void ssl_set_session(ssl_context *ssl, const ssl_session *session)
Request resumption of session (client-side only) Session data is copied from presented session struct...
int ssl_set_hostname(ssl_context *ssl, const char *hostname)
Set hostname for ServerName TLS extension (client-side only)
int ssl_handshake_step(ssl_context *ssl)
Perform a single step of the SSL handshake.
MD5 context structure.
Definition: md5.h:50
unsigned char mac_dec[32]
Definition: ssl.h:347
unsigned char iv_dec[16]
Definition: ssl.h:344
X.509 certificate and private key decoding.
int ssl_parse_change_cipher_spec(ssl_context *ssl)
size_t hostname_len
Definition: ssl.h:516
int minor_ver
Definition: ssl.h:409
int ssl_close_notify(ssl_context *ssl)
Notify the peer that the connection is being closed.
void ssl_set_session_cache(ssl_context *ssl, int(*f_get_cache)(void *, ssl_session *), void *p_get_cache, int(*f_set_cache)(void *, const ssl_session *), void *p_set_cache)
Set the session cache callbacks (server-side only) If not set, no session resuming is done...
size_t ssl_get_bytes_avail(const ssl_context *ssl)
Return the number of data bytes available to read.
size_t in_left
Definition: ssl.h:467
int allow_legacy_renegotiation
Definition: ssl.h:504
ssl_session * session_out
Definition: ssl.h:442
The RSA public-key cryptosystem.
void(* calc_finished)(ssl_context *, unsigned char *, int)
Definition: ssl.h:386
int ssl_read_record(ssl_context *ssl)
int ssl_set_dh_param(ssl_context *ssl, const char *dhm_P, const char *dhm_G)
Set the Diffie-Hellman public P and G values, read as hexadecimal strings (server-side only) (Default...
int out_msgtype
Definition: ssl.h:479
uint32_t ctx_enc[136]
Definition: ssl.h:349
size_t out_left
Definition: ssl.h:481
SHA-1 cryptographic hash function.
unsigned char mac_enc[32]
Definition: ssl.h:346
int ssl_get_verify_result(const ssl_context *ssl)
Return the result of the certificate verification.
int ssl_session_reset(ssl_context *ssl)
Reset an already initialized SSL context for re-use while retaining application-set variables...
x509_cert * own_cert
Definition: ssl.h:491
int min_major_ver
Definition: ssl.h:413
Certificate revocation list structure.
Definition: x509.h:354
ssl_transform * transform_negotiate
Definition: ssl.h:455
SHA-512 context structure.
Definition: sha4.h:51
int disable_renegotiation
Definition: ssl.h:503
int verify_result
Definition: ssl.h:502
int ssl_write_change_cipher_spec(ssl_context *ssl)
int(* f_get_cache)(void *, ssl_session *)
Definition: ssl.h:424
int ssl_derive_keys(ssl_context *ssl)
void * rsa_key
Definition: ssl.h:486
void ssl_set_authmode(ssl_context *ssl, int authmode)
Set the certificate verification mode.
int(* f_set_cache)(void *, const ssl_session *)
Definition: ssl.h:425
void ssl_set_ca_chain(ssl_context *ssl, x509_cert *ca_chain, x509_crl *ca_crl, const char *peer_cn)
Set the data required to verify peer certificate.
int renegotiation
Definition: ssl.h:406
dhm_context dhm_ctx
Definition: ssl.h:373
void ssl_optimize_checksum(ssl_context *ssl, int ciphersuite)
int ssl_send_fatal_handshake_failure(ssl_context *ssl)
size_t minlen
Definition: ssl.h:338
int ssl_read(ssl_context *ssl, unsigned char *buf, size_t len)
Read at most &#39;len&#39; application data bytes.
void ssl_transform_free(ssl_transform *transform)
Free referenced items in an SSL transform context and clear memory.
static const int * ssl_list_ciphersuites(void)
Returns the list of ciphersuites supported by the SSL/TLS module.
Definition: ssl.h:551
const char * ssl_get_ciphersuite_name(const int ciphersuite_id)
Return the name of the ciphersuite associated with the given ID.
MD5 message digest algorithm (hash function)
uint32_t ctx_dec[136]
Definition: ssl.h:350
int ssl_renegotiate(ssl_context *ssl)
Perform an SSL renegotiation on the running connection.
int(* f_recv)(void *, unsigned char *, size_t)
Definition: ssl.h:421
int ssl_write(ssl_context *ssl, const unsigned char *buf, size_t len)
Write exactly &#39;len&#39; application data bytes.
md5_context fin_md5
Definition: ssl.h:379
int endpoint
Definition: ssl.h:499
void ssl_set_sni(ssl_context *ssl, int(*f_sni)(void *, ssl_context *, const unsigned char *, size_t), void *p_sni)
Set server side ServerName TLS extension callback (optional, server-side only).
int ssl_fetch_input(ssl_context *ssl, size_t nb_want)
int ssl_write_record(ssl_context *ssl)
const x509_cert * ssl_get_peer_cert(const ssl_context *ssl)
Return the peer certificate from the current connection.
unsigned char randbytes[64]
Definition: ssl.h:393
void * p_sni
Definition: ssl.h:435