Don't send NPN during renegotiation.
[oweals/openssl.git] / ssl / ssl.h
index 6af291ba8338cd4d1d18f4c7a2cd36b7bf9dacee..a2803e23abf5b42fcc1d2537608d7fae14c9e103 100644 (file)
--- a/ssl/ssl.h
+++ b/ssl/ssl.h
@@ -287,6 +287,7 @@ extern "C" {
 #define SSL_TXT_AES128         "AES128"
 #define SSL_TXT_AES256         "AES256"
 #define SSL_TXT_AES            "AES"
+#define SSL_TXT_AES_GCM                "AESGCM"
 #define SSL_TXT_CAMELLIA128    "CAMELLIA128"
 #define SSL_TXT_CAMELLIA256    "CAMELLIA256"
 #define SSL_TXT_CAMELLIA       "CAMELLIA"
@@ -368,6 +369,15 @@ typedef struct ssl_session_st SSL_SESSION;
 
 DECLARE_STACK_OF(SSL_CIPHER)
 
+/* SRTP protection profiles for use with the use_srtp extension (RFC 5764)*/
+typedef struct srtp_protection_profile_st
+       {
+       const char *name;
+       unsigned long id;
+       } SRTP_PROTECTION_PROFILE;
+
+DECLARE_STACK_OF(SRTP_PROTECTION_PROFILE)
+
 typedef int (*tls_session_ticket_ext_cb_fn)(SSL *s, const unsigned char *data, int len, void *arg);
 typedef int (*tls_session_secret_cb_fn)(SSL *s, void *secret, int *secret_len, STACK_OF(SSL_CIPHER) *peer_ciphers, SSL_CIPHER **cipher, void *arg);
 
@@ -446,10 +456,12 @@ struct ssl_method_st
  *     Session_ID_context [ 4 ] EXPLICIT OCTET STRING,   -- the Session ID context
  *     Verify_result [ 5 ] EXPLICIT INTEGER,   -- X509_V_... code for `Peer'
  *     HostName [ 6 ] EXPLICIT OCTET STRING,   -- optional HostName from servername TLS extension 
- *     ECPointFormatList [ 7 ] OCTET STRING,     -- optional EC point format list from TLS extension
- *     PSK_identity_hint [ 8 ] EXPLICIT OCTET STRING, -- optional PSK identity hint
- *     PSK_identity [ 9 ] EXPLICIT OCTET STRING -- optional PSK identity
- *     SRP_username [ 11 ] EXPLICIT OCTET STRING -- optional SRP username
+ *     PSK_identity_hint [ 7 ] EXPLICIT OCTET STRING, -- optional PSK identity hint
+ *     PSK_identity [ 8 ] EXPLICIT OCTET STRING,  -- optional PSK identity
+ *     Ticket_lifetime_hint [9] EXPLICIT INTEGER, -- server's lifetime hint for session ticket
+ *     Ticket [10]             EXPLICIT OCTET STRING, -- session ticket (clients only)
+ *     Compression_meth [11]   EXPLICIT OCTET STRING, -- optional compression method
+ *     SRP_username [ 12 ] EXPLICIT OCTET STRING -- optional SRP username
  *     }
  * Look in ssl/ssl_asn1.c for more details
  * I'm using EXPLICIT tags so I can read the damn things using asn1parse :-).
@@ -914,9 +926,28 @@ struct ssl_ctx_st
        int (*tlsext_status_cb)(SSL *ssl, void *arg);
        void *tlsext_status_arg;
 
+# ifndef OPENSSL_NO_NEXTPROTONEG
+       /* Next protocol negotiation information */
+       /* (for experimental NPN extension). */
+
+       /* For a server, this contains a callback function by which the set of
+        * advertised protocols can be provided. */
+       int (*next_protos_advertised_cb)(SSL *s, const unsigned char **buf,
+                                        unsigned int *len, void *arg);
+       void *next_protos_advertised_cb_arg;
+       /* For a client, this contains a callback function that selects the
+        * next protocol from the list provided by the server. */
+       int (*next_proto_select_cb)(SSL *s, unsigned char **out,
+                                   unsigned char *outlen,
+                                   const unsigned char *in,
+                                   unsigned int inlen,
+                                   void *arg);
+       void *next_proto_select_cb_arg;
+
        /* draft-rescorla-tls-opaque-prf-input-00.txt information */
        int (*tlsext_opaque_prf_input_callback)(SSL *, void *peerinput, size_t len, void *arg);
        void *tlsext_opaque_prf_input_callback_arg;
+# endif
 #endif
 
 #ifndef OPENSSL_NO_PSK
@@ -937,6 +968,11 @@ struct ssl_ctx_st
 #ifndef OPENSSL_NO_SRP
        SRP_CTX srp_ctx; /* ctx for SRP authentication */
 #endif
+
+#ifndef OPENSSL_NO_TLSEXT
+        /* SRTP profiles we are willing to do from RFC 5764 */
+        STACK_OF(SRTP_PROTECTION_PROFILE) *srtp_profiles;  
+#endif
        };
 
 #endif
@@ -993,6 +1029,32 @@ int SSL_CTX_set_client_cert_engine(SSL_CTX *ctx, ENGINE *e);
 #endif
 void SSL_CTX_set_cookie_generate_cb(SSL_CTX *ctx, int (*app_gen_cookie_cb)(SSL *ssl, unsigned char *cookie, unsigned int *cookie_len));
 void SSL_CTX_set_cookie_verify_cb(SSL_CTX *ctx, int (*app_verify_cookie_cb)(SSL *ssl, unsigned char *cookie, unsigned int cookie_len));
+#ifndef OPENSSL_NO_NEXTPROTONEG
+void SSL_CTX_set_next_protos_advertised_cb(SSL_CTX *s,
+                                          int (*cb) (SSL *ssl,
+                                                     const unsigned char **out,
+                                                     unsigned int *outlen,
+                                                     void *arg),
+                                          void *arg);
+void SSL_CTX_set_next_proto_select_cb(SSL_CTX *s,
+                                     int (*cb) (SSL *ssl,
+                                                unsigned char **out,
+                                                unsigned char *outlen,
+                                                const unsigned char *in,
+                                                unsigned int inlen,
+                                                void *arg),
+                                     void *arg);
+
+int SSL_select_next_proto(unsigned char **out, unsigned char *outlen,
+                         const unsigned char *in, unsigned int inlen,
+                         const unsigned char *client, unsigned int client_len);
+void SSL_get0_next_proto_negotiated(const SSL *s,
+                                   const unsigned char **data, unsigned *len);
+
+#define OPENSSL_NPN_UNSUPPORTED        0
+#define OPENSSL_NPN_NEGOTIATED 1
+#define OPENSSL_NPN_NO_OVERLAP 2
+#endif
 
 #ifndef OPENSSL_NO_PSK
 /* the maximum length of the buffer given to callbacks containing the
@@ -1080,12 +1142,12 @@ struct ssl_st
        int server;     /* are we the server side? - mostly used by SSL_clear*/
 
        int new_session;/* Generate a new session or reuse an old one.
-                                        * NB: For servers, the 'new' session may actually be a previously
-                                        * cached session or even the previous session unless
-                                        * SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION is set */
+                        * NB: For servers, the 'new' session may actually be a previously
+                        * cached session or even the previous session unless
+                        * SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION is set */
        int renegotiate;/* 1 if we are renegotiating.
-                                        * 2 if we are a server and are inside a handshake
-                                        *   (i.e. not just sending a HelloRequest) */
+                        * 2 if we are a server and are inside a handshake
+                        * (i.e. not just sending a HelloRequest) */
 
        int quiet_shutdown;/* don't send shutdown packets */
        int shutdown;   /* we have shut things down, 0x01 sent, 0x02
@@ -1257,7 +1319,23 @@ struct ssl_st
        void *tls_session_secret_cb_arg;
 
        SSL_CTX * initial_ctx; /* initial ctx, used to store sessions */
+
+#ifndef OPENSSL_NO_NEXTPROTONEG
+       /* Next protocol negotiation. For the client, this is the protocol that
+        * we sent in NextProtocol and is set when handling ServerHello
+        * extensions.
+        *
+        * For a server, this is the client's selected_protocol from
+        * NextProtocol and is set when handling the NextProtocol message,
+        * before the Finished message. */
+       unsigned char *next_proto_negotiated;
+       unsigned char next_proto_negotiated_len;
+#endif
+
 #define session_ctx initial_ctx
+
+        STACK_OF(SRTP_PROTECTION_PROFILE) *srtp_profiles;  /* What we'll do */
+        SRTP_PROTECTION_PROFILE *srtp_profile;            /* What's been chosen */
 #else
 #define session_ctx ctx
 #endif /* OPENSSL_NO_TLSEXT */
@@ -1274,6 +1352,7 @@ struct ssl_st
 #include <openssl/tls1.h> /* This is mostly sslv3 with a few tweaks */
 #include <openssl/dtls1.h> /* Datagram TLS */
 #include <openssl/ssl23.h>
+#include <openssl/srtp.h>  /* Support for the use_srtp extension */
 
 #ifdef  __cplusplus
 extern "C" {
@@ -2043,6 +2122,7 @@ void ERR_load_SSL_strings(void);
 #define SSL_F_SSL3_GET_KEY_EXCHANGE                     141
 #define SSL_F_SSL3_GET_MESSAGE                          142
 #define SSL_F_SSL3_GET_NEW_SESSION_TICKET               283
+#define SSL_F_SSL3_GET_NEXT_PROTO                       305
 #define SSL_F_SSL3_GET_RECORD                           143
 #define SSL_F_SSL3_GET_SERVER_CERTIFICATE               144
 #define SSL_F_SSL3_GET_SERVER_DONE                      145
@@ -2067,10 +2147,12 @@ void ERR_load_SSL_strings(void);
 #define SSL_F_SSL3_WRITE_PENDING                        159
 #define SSL_F_SSL_ADD_CLIENTHELLO_RENEGOTIATE_EXT       298
 #define SSL_F_SSL_ADD_CLIENTHELLO_TLSEXT                277
+#define SSL_F_SSL_ADD_CLIENTHELLO_USE_SRTP_EXT          307
 #define SSL_F_SSL_ADD_DIR_CERT_SUBJECTS_TO_STACK        215
 #define SSL_F_SSL_ADD_FILE_CERT_SUBJECTS_TO_STACK       216
 #define SSL_F_SSL_ADD_SERVERHELLO_RENEGOTIATE_EXT       299
 #define SSL_F_SSL_ADD_SERVERHELLO_TLSEXT                278
+#define SSL_F_SSL_ADD_SERVERHELLO_USE_SRTP_EXT          308
 #define SSL_F_SSL_BAD_METHOD                            160
 #define SSL_F_SSL_BYTES_TO_CIPHER_LIST                  161
 #define SSL_F_SSL_CERT_DUP                              221
@@ -2087,6 +2169,7 @@ void ERR_load_SSL_strings(void);
 #define SSL_F_SSL_CREATE_CIPHER_LIST                    166
 #define SSL_F_SSL_CTRL                                  232
 #define SSL_F_SSL_CTX_CHECK_PRIVATE_KEY                         168
+#define SSL_F_SSL_CTX_MAKE_PROFILES                     309
 #define SSL_F_SSL_CTX_NEW                               169
 #define SSL_F_SSL_CTX_SET_CIPHER_LIST                   269
 #define SSL_F_SSL_CTX_SET_CLIENT_CERT_ENGINE            290
@@ -2115,8 +2198,10 @@ void ERR_load_SSL_strings(void);
 #define SSL_F_SSL_NEW                                   186
 #define SSL_F_SSL_PARSE_CLIENTHELLO_RENEGOTIATE_EXT     300
 #define SSL_F_SSL_PARSE_CLIENTHELLO_TLSEXT              302
+#define SSL_F_SSL_PARSE_CLIENTHELLO_USE_SRTP_EXT        310
 #define SSL_F_SSL_PARSE_SERVERHELLO_RENEGOTIATE_EXT     301
 #define SSL_F_SSL_PARSE_SERVERHELLO_TLSEXT              303
+#define SSL_F_SSL_PARSE_SERVERHELLO_USE_SRTP_EXT        311
 #define SSL_F_SSL_PEEK                                  270
 #define SSL_F_SSL_PREPARE_CLIENTHELLO_TLSEXT            281
 #define SSL_F_SSL_PREPARE_SERVERHELLO_TLSEXT            282
@@ -2159,6 +2244,7 @@ void ERR_load_SSL_strings(void);
 #define SSL_F_TLS1_CHANGE_CIPHER_STATE                  209
 #define SSL_F_TLS1_CHECK_SERVERHELLO_TLSEXT             274
 #define SSL_F_TLS1_ENC                                  210
+#define SSL_F_TLS1_EXPORT_KEYING_MATERIAL               312
 #define SSL_F_TLS1_PREPARE_CLIENTHELLO_TLSEXT           275
 #define SSL_F_TLS1_PREPARE_SERVERHELLO_TLSEXT           276
 #define SSL_F_TLS1_PRF                                  284
@@ -2203,6 +2289,7 @@ void ERR_load_SSL_strings(void);
 #define SSL_R_BAD_SRP_G_LENGTH                          348
 #define SSL_R_BAD_SRP_N_LENGTH                          349
 #define SSL_R_BAD_SRP_S_LENGTH                          350
+#define SSL_R_BAD_SRTP_PROTECTION_PROFILE_LIST          360
 #define SSL_R_BAD_SSL_FILETYPE                          124
 #define SSL_R_BAD_SSL_SESSION_ID_LENGTH                         125
 #define SSL_R_BAD_STATE                                         126
@@ -2241,12 +2328,15 @@ void ERR_load_SSL_strings(void);
 #define SSL_R_ECC_CERT_SHOULD_HAVE_RSA_SIGNATURE        322
 #define SSL_R_ECC_CERT_SHOULD_HAVE_SHA1_SIGNATURE       323
 #define SSL_R_ECGROUP_TOO_LARGE_FOR_CIPHER              310
+#define SSL_R_EMPTY_SRTP_PROTECTION_PROFILE_LIST        361
 #define SSL_R_ENCRYPTED_LENGTH_TOO_LONG                         150
 #define SSL_R_ERROR_GENERATING_TMP_RSA_KEY              282
 #define SSL_R_ERROR_IN_RECEIVED_CIPHER_LIST             151
 #define SSL_R_EXCESSIVE_MESSAGE_SIZE                    152
 #define SSL_R_EXTRA_DATA_IN_MESSAGE                     153
 #define SSL_R_GOT_A_FIN_BEFORE_A_CCS                    154
+#define SSL_R_GOT_NEXT_PROTO_BEFORE_A_CCS               355
+#define SSL_R_GOT_NEXT_PROTO_WITHOUT_EXTENSION          356
 #define SSL_R_HTTPS_PROXY_REQUEST                       155
 #define SSL_R_HTTP_REQUEST                              156
 #define SSL_R_ILLEGAL_PADDING                           283
@@ -2315,6 +2405,7 @@ void ERR_load_SSL_strings(void);
 #define SSL_R_NO_RENEGOTIATION                          339
 #define SSL_R_NO_REQUIRED_DIGEST                        324
 #define SSL_R_NO_SHARED_CIPHER                          193
+#define SSL_R_NO_SRTP_PROFILES                          362
 #define SSL_R_NO_VERIFY_CALLBACK                        194
 #define SSL_R_NULL_SSL_CTX                              195
 #define SSL_R_NULL_SSL_METHOD_PASSED                    196
@@ -2361,6 +2452,9 @@ void ERR_load_SSL_strings(void);
 #define SSL_R_SIGNATURE_ALGORITHMS_ERROR                359
 #define SSL_R_SIGNATURE_FOR_NON_SIGNING_CERTIFICATE     220
 #define SSL_R_SRP_A_CALC                                354
+#define SSL_R_SRTP_COULD_NOT_ALLOCATE_PROFILES          363
+#define SSL_R_SRTP_PROTECTION_PROFILE_LIST_TOO_LONG     364
+#define SSL_R_SRTP_UNKNOWN_PROTECTION_PROFILE           365
 #define SSL_R_SSL23_DOING_SESSION_ID_REUSE              221
 #define SSL_R_SSL2_CONNECTION_ID_TOO_LONG               299
 #define SSL_R_SSL3_EXT_INVALID_ECPOINTFORMAT            321
@@ -2405,6 +2499,7 @@ void ERR_load_SSL_strings(void);
 #define SSL_R_TLSV1_UNRECOGNIZED_NAME                   1112
 #define SSL_R_TLSV1_UNSUPPORTED_EXTENSION               1110
 #define SSL_R_TLS_CLIENT_CERT_REQ_WITH_ANON_CIPHER      232
+#define SSL_R_TLS_ILLEGAL_EXPORTER_LABEL                367
 #define SSL_R_TLS_INVALID_ECPOINTFORMAT_LIST            157
 #define SSL_R_TLS_PEER_DID_NOT_RESPOND_WITH_CERTIFICATE_LIST 233
 #define SSL_R_TLS_RSA_ENCRYPTED_VALUE_LENGTH_IS_WRONG   234
@@ -2441,6 +2536,7 @@ void ERR_load_SSL_strings(void);
 #define SSL_R_UNSUPPORTED_PROTOCOL                      258
 #define SSL_R_UNSUPPORTED_SSL_VERSION                   259
 #define SSL_R_UNSUPPORTED_STATUS_TYPE                   329
+#define SSL_R_USE_SRTP_NOT_NEGOTIATED                   366
 #define SSL_R_WRITE_BIO_NOT_SET                                 260
 #define SSL_R_WRONG_CIPHER_RETURNED                     261
 #define SSL_R_WRONG_MESSAGE_TYPE                        262