[thirdparty/hostap.git] / patches / openssl-0.9.8g-tls-extensions.patch

This patch adds support for TLS SessionTicket extension (RFC 5077) for
the parts used by EAP-FAST (RFC 4851).

This is based on the patch from Alexey Kobozev <akobozev@cisco.com>
(sent to openssl-dev mailing list on Tue, 07 Jun 2005 15:40:58 +0300).

OpenSSL 0.9.8g does not enable TLS extension support by default, so it
will need to be enabled by adding enable-tlsext to config script
command line.


diff -upr openssl-0.9.8g.orig/ssl/s3_clnt.c openssl-0.9.8g/ssl/s3_clnt.c
--- openssl-0.9.8g.orig/ssl/s3_clnt.c	2007-08-31 03:28:51.000000000 +0300
+++ openssl-0.9.8g/ssl/s3_clnt.c	2008-04-15 17:11:46.000000000 +0300
@@ -727,6 +727,20 @@ int ssl3_get_server_hello(SSL *s)
 		goto f_err;
 		}
 
+#ifndef OPENSSL_NO_TLSEXT
+	/* check if we want to resume the session based on external pre-shared secret */
+	if (s->version >= TLS1_VERSION && s->tls_session_secret_cb)
+	{
+		SSL_CIPHER *pref_cipher=NULL;
+		s->session->master_key_length=sizeof(s->session->master_key);
+		if (s->tls_session_secret_cb(s, s->session->master_key, &s->session->master_key_length,
+			NULL, &pref_cipher, s->tls_session_secret_cb_arg))
+		{
+			s->session->cipher=pref_cipher ? pref_cipher : ssl_get_cipher_by_char(s,p+j);
+		}
+	}
+#endif /* OPENSSL_NO_TLSEXT */
+
 	if (j != 0 && j == s->session->session_id_length
 	    && memcmp(p,s->session->session_id,j) == 0)
 	    {
diff -upr openssl-0.9.8g.orig/ssl/s3_srvr.c openssl-0.9.8g/ssl/s3_srvr.c
--- openssl-0.9.8g.orig/ssl/s3_srvr.c	2007-09-30 21:55:59.000000000 +0300
+++ openssl-0.9.8g/ssl/s3_srvr.c	2008-04-15 17:10:37.000000000 +0300
@@ -928,6 +928,59 @@ int ssl3_get_client_hello(SSL *s)
 			SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,SSL_R_CLIENTHELLO_TLSEXT);
 			goto err;
 		}
+
+	/* Check if we want to use external pre-shared secret for this
+	 * handshake for not reused session only. We need to generate
+	 * server_random before calling tls_session_secret_cb in order to allow
+	 * SessionTicket processing to use it in key derivation. */
+	{
+		unsigned long Time;
+		unsigned char *pos;
+		Time=(unsigned long)time(NULL);			/* Time */
+		pos=s->s3->server_random;
+		l2n(Time,pos);
+		if (RAND_pseudo_bytes(pos,SSL3_RANDOM_SIZE-4) <= 0)
+		{
+			al=SSL_AD_INTERNAL_ERROR;
+			goto f_err;
+		}
+	}
+
+	if (!s->hit && s->version >= TLS1_VERSION && s->tls_session_secret_cb)
+	{
+		SSL_CIPHER *pref_cipher=NULL;
+
+		s->session->master_key_length=sizeof(s->session->master_key);
+		if(s->tls_session_secret_cb(s, s->session->master_key, &s->session->master_key_length, 
+			ciphers, &pref_cipher, s->tls_session_secret_cb_arg))
+		{
+			s->hit=1;
+			s->session->ciphers=ciphers;
+			s->session->verify_result=X509_V_OK;
+			
+			ciphers=NULL;
+			
+			/* check if some cipher was preferred by call back */
+			pref_cipher=pref_cipher ? pref_cipher : ssl3_choose_cipher(s, s->session->ciphers, SSL_get_ciphers(s));
+			if (pref_cipher == NULL)
+				{
+				al=SSL_AD_HANDSHAKE_FAILURE;
+				SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,SSL_R_NO_SHARED_CIPHER);
+				goto f_err;
+				}
+
+			s->session->cipher=pref_cipher;
+
+			if (s->cipher_list)
+				sk_SSL_CIPHER_free(s->cipher_list);
+
+			if (s->cipher_list_by_id)
+				sk_SSL_CIPHER_free(s->cipher_list_by_id);
+
+			s->cipher_list = sk_SSL_CIPHER_dup(s->session->ciphers);
+			s->cipher_list_by_id = sk_SSL_CIPHER_dup(s->session->ciphers);
+		}
+	}
 #endif
 	/* Worst case, we will use the NULL compression, but if we have other
 	 * options, we will now look for them.  We have i-1 compression
@@ -1066,16 +1119,22 @@ int ssl3_send_server_hello(SSL *s)
 	unsigned char *buf;
 	unsigned char *p,*d;
 	int i,sl;
-	unsigned long l,Time;
+	unsigned long l;
+#ifdef OPENSSL_NO_TLSEXT
+	unsigned long Time;
+#endif
 
 	if (s->state == SSL3_ST_SW_SRVR_HELLO_A)
 		{
 		buf=(unsigned char *)s->init_buf->data;
+#ifdef OPENSSL_NO_TLSEXT
 		p=s->s3->server_random;
+		/* Generate server_random if it was not needed previously */
 		Time=(unsigned long)time(NULL);			/* Time */
 		l2n(Time,p);
 		if (RAND_pseudo_bytes(p,SSL3_RANDOM_SIZE-4) <= 0)
 			return -1;
+#endif
 		/* Do the message type and length last */
 		d=p= &(buf[4]);
 
diff -upr openssl-0.9.8g.orig/ssl/ssl.h openssl-0.9.8g/ssl/ssl.h
--- openssl-0.9.8g.orig/ssl/ssl.h	2007-10-19 10:42:38.000000000 +0300
+++ openssl-0.9.8g/ssl/ssl.h	2008-04-15 17:10:37.000000000 +0300
@@ -342,6 +342,7 @@ extern "C" {
  * 'struct ssl_st *' function parameters used to prototype callbacks
  * in SSL_CTX. */
 typedef struct ssl_st *ssl_crock_st;
+typedef struct tls_extension_st TLS_EXTENSION;
 
 /* used to hold info on the particular ciphers used */
 typedef struct ssl_cipher_st
@@ -363,6 +364,8 @@ DECLARE_STACK_OF(SSL_CIPHER)
 typedef struct ssl_st SSL;
 typedef struct ssl_ctx_st SSL_CTX;
 
+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);
+
 /* Used to hold functions for SSLv2 or SSLv3/TLSv1 functions */
 typedef struct ssl_method_st
 	{
@@ -1004,6 +1007,14 @@ struct ssl_st
 	                       */
 	/* RFC4507 session ticket expected to be received or sent */
 	int tlsext_ticket_expected;
+
+	/* TLS extensions */
+	TLS_EXTENSION *tls_extension;
+
+	/* TLS pre-shared secret session resumption */
+	tls_session_secret_cb_fn tls_session_secret_cb;
+	void *tls_session_secret_cb_arg;
+
 	SSL_CTX * initial_ctx; /* initial ctx, used to store sessions */
 #define session_ctx initial_ctx
 #else
@@ -1589,6 +1600,12 @@ void *SSL_COMP_get_compression_methods(v
 int SSL_COMP_add_compression_method(int id,void *cm);
 #endif
 
+/* TLS extensions functions */
+int SSL_set_hello_extension(SSL *s, int ext_type, void *ext_data, int ext_len);
+
+/* Pre-shared secret session resumption functions */
+int SSL_set_session_secret_cb(SSL *s, tls_session_secret_cb_fn tls_session_secret_cb, void *arg);
+
 /* BEGIN ERROR CODES */
 /* The following lines are auto generated by the script mkerr.pl. Any changes
  * made after this point may be overwritten when the script is next run.
@@ -1778,6 +1795,7 @@ void ERR_load_SSL_strings(void);
 #define SSL_F_TLS1_ENC					 210
 #define SSL_F_TLS1_SETUP_KEY_BLOCK			 211
 #define SSL_F_WRITE_PENDING				 212
+#define SSL_F_SSL_SET_HELLO_EXTENSION			 213
 
 /* Reason codes. */
 #define SSL_R_APP_DATA_IN_HANDSHAKE			 100
diff -upr openssl-0.9.8g.orig/ssl/ssl_err.c openssl-0.9.8g/ssl/ssl_err.c
--- openssl-0.9.8g.orig/ssl/ssl_err.c	2007-10-11 17:36:59.000000000 +0300
+++ openssl-0.9.8g/ssl/ssl_err.c	2008-04-15 17:10:37.000000000 +0300
@@ -250,6 +250,7 @@ static ERR_STRING_DATA SSL_str_functs[]=
 {ERR_FUNC(SSL_F_TLS1_ENC),	"TLS1_ENC"},
 {ERR_FUNC(SSL_F_TLS1_SETUP_KEY_BLOCK),	"TLS1_SETUP_KEY_BLOCK"},
 {ERR_FUNC(SSL_F_WRITE_PENDING),	"WRITE_PENDING"},
+{ERR_FUNC(SSL_F_SSL_SET_HELLO_EXTENSION), "SSL_set_hello_extension"},
 {0,NULL}
 	};
 
diff -upr openssl-0.9.8g.orig/ssl/ssl_sess.c openssl-0.9.8g/ssl/ssl_sess.c
--- openssl-0.9.8g.orig/ssl/ssl_sess.c	2007-10-19 10:36:34.000000000 +0300
+++ openssl-0.9.8g/ssl/ssl_sess.c	2008-04-15 17:10:37.000000000 +0300
@@ -704,6 +704,52 @@ long SSL_CTX_get_timeout(const SSL_CTX *
 	return(s->session_timeout);
 	}
 
+#ifndef OPENSSL_NO_TLSEXT
+int SSL_set_session_secret_cb(SSL *s, int (*tls_session_secret_cb)(SSL *s, void *secret, int *secret_len, 
+	STACK_OF(SSL_CIPHER) *peer_ciphers, SSL_CIPHER **cipher, void *arg), void *arg)
+{
+	if (s == NULL) return(0);
+	s->tls_session_secret_cb = tls_session_secret_cb;
+	s->tls_session_secret_cb_arg = arg;
+	return(1);
+}
+
+int SSL_set_hello_extension(SSL *s, int ext_type, void *ext_data, int ext_len)
+{
+	if(s->version >= TLS1_VERSION)
+	{
+		if(s->tls_extension)
+		{
+			OPENSSL_free(s->tls_extension);
+			s->tls_extension = NULL;
+		}
+
+		s->tls_extension = OPENSSL_malloc(sizeof(TLS_EXTENSION) + ext_len);
+		if(!s->tls_extension)
+		{
+			SSLerr(SSL_F_SSL_SET_HELLO_EXTENSION, ERR_R_MALLOC_FAILURE);
+			return 0;
+		}
+
+		s->tls_extension->type = ext_type;
+
+		if(ext_data)
+		{
+			s->tls_extension->length = ext_len;
+			s->tls_extension->data = s->tls_extension + 1;
+			memcpy(s->tls_extension->data, ext_data, ext_len);
+		} else {
+			s->tls_extension->length = 0;
+			s->tls_extension->data = NULL;
+		}
+
+		return 1;
+	}
+
+	return 0;
+}
+#endif /* OPENSSL_NO_TLSEXT */
+
 typedef struct timeout_param_st
 	{
 	SSL_CTX *ctx;
diff -upr openssl-0.9.8g.orig/ssl/t1_lib.c openssl-0.9.8g/ssl/t1_lib.c
--- openssl-0.9.8g.orig/ssl/t1_lib.c	2007-10-19 10:44:10.000000000 +0300
+++ openssl-0.9.8g/ssl/t1_lib.c	2008-04-15 17:10:37.000000000 +0300
@@ -105,6 +105,12 @@ int tls1_new(SSL *s)
 
 void tls1_free(SSL *s)
 	{
+#ifndef OPENSSL_NO_TLSEXT
+	if(s->tls_extension)
+	{
+		OPENSSL_free(s->tls_extension);
+	}
+#endif
 	ssl3_free(s);
 	}
 
@@ -174,8 +180,24 @@ unsigned char *ssl_add_clienthello_tlsex
 		int ticklen;
 		if (s->session && s->session->tlsext_tick)
 			ticklen = s->session->tlsext_ticklen;
+		else if (s->session && s->tls_extension &&
+			s->tls_extension->type == TLSEXT_TYPE_session_ticket &&
+			s->tls_extension->data)
+		{
+			ticklen = s->tls_extension->length;
+			s->session->tlsext_tick = OPENSSL_malloc(ticklen);
+			if (!s->session->tlsext_tick)
+				return NULL;
+			memcpy(s->session->tlsext_tick, s->tls_extension->data,
+			       ticklen);
+			s->session->tlsext_ticklen = ticklen;
+		}
 		else
 			ticklen = 0;
+		if (ticklen == 0 && s->tls_extension &&
+		    s->tls_extension->type == TLSEXT_TYPE_session_ticket &&
+		    s->tls_extension->data == NULL)
+			goto skip_ext;
 		/* Check for enough room 2 for extension type, 2 for len
  		 * rest for ticket
   		 */
@@ -189,6 +211,7 @@ unsigned char *ssl_add_clienthello_tlsex
 			ret += ticklen;
 			}
 		}
+		skip_ext:
 
 	if ((extdatalen = ret-p-2)== 0) 
 		return p;
@@ -543,6 +566,8 @@ int tls1_process_ticket(SSL *s, unsigned
 				s->tlsext_ticket_expected = 1;
 				return 0;	/* Cache miss */
 				}
+			if (s->tls_session_secret_cb)
+				return 0;
 			return tls_decrypt_ticket(s, p, size, session_id, len,
 									ret);
 			}
diff -upr openssl-0.9.8g.orig/ssl/tls1.h openssl-0.9.8g/ssl/tls1.h
--- openssl-0.9.8g.orig/ssl/tls1.h	2007-08-28 04:12:44.000000000 +0300
+++ openssl-0.9.8g/ssl/tls1.h	2008-04-15 17:10:37.000000000 +0300
@@ -365,6 +365,14 @@ SSL_CTX_ctrl(ctx,SSL_CTRL_SET_TLSEXT_SER
 #define TLS_MD_MASTER_SECRET_CONST    "\x6d\x61\x73\x74\x65\x72\x20\x73\x65\x63\x72\x65\x74"  /*master secret*/
 #endif
 
+/* TLS extension struct */
+struct tls_extension_st
+{
+	unsigned short type;
+	unsigned short length;
+	void *data;
+};
+
 #ifdef  __cplusplus
 }
 #endif
diff -upr openssl-0.9.8g.orig/util/ssleay.num openssl-0.9.8g/util/ssleay.num
--- openssl-0.9.8g.orig/util/ssleay.num	2007-08-13 01:31:16.000000000 +0300
+++ openssl-0.9.8g/util/ssleay.num	2008-04-15 17:10:37.000000000 +0300
@@ -241,3 +241,5 @@ SSL_CTX_sess_get_remove_cb              
 SSL_set_SSL_CTX                         290	EXIST::FUNCTION:
 SSL_get_servername                      291	EXIST::FUNCTION:TLSEXT
 SSL_get_servername_type                 292	EXIST::FUNCTION:TLSEXT
+SSL_set_hello_extension			305	EXIST::FUNCTION:TLSEXT
+SSL_set_session_secret_cb		306	EXIST::FUNCTION:TLSEXT
Commit	Line	Data
fe2b7dda	1	This patch adds support for TLS SessionTicket extension (RFC 5077) for
6fc6879b JM	2	the parts used by EAP-FAST (RFC 4851).
	3
	4	This is based on the patch from Alexey Kobozev <akobozev@cisco.com>
	5	(sent to openssl-dev mailing list on Tue, 07 Jun 2005 15:40:58 +0300).
	6
	7	OpenSSL 0.9.8g does not enable TLS extension support by default, so it
	8	will need to be enabled by adding enable-tlsext to config script
	9	command line.
	10
	11
	12	diff -upr openssl-0.9.8g.orig/ssl/s3_clnt.c openssl-0.9.8g/ssl/s3_clnt.c
fe2b7dda JM	13	--- openssl-0.9.8g.orig/ssl/s3_clnt.c 2007-08-31 03:28:51.000000000 +0300
	14	+++ openssl-0.9.8g/ssl/s3_clnt.c 2008-04-15 17:11:46.000000000 +0300
	15	@@ -727,6 +727,20 @@ int ssl3_get_server_hello(SSL *s)
6fc6879b JM	16	goto f_err;
	17	}
	18
6fc6879b	19	+#ifndef OPENSSL_NO_TLSEXT
fe2b7dda	20	+ /* check if we want to resume the session based on external pre-shared secret */
6fc6879b JM	21	+ if (s->version >= TLS1_VERSION && s->tls_session_secret_cb)
	22	+ {
	23	+ SSL_CIPHER *pref_cipher=NULL;
	24	+ s->session->master_key_length=sizeof(s->session->master_key);
	25	+ if (s->tls_session_secret_cb(s, s->session->master_key, &s->session->master_key_length,
	26	+ NULL, &pref_cipher, s->tls_session_secret_cb_arg))
	27	+ {
6fc6879b	28	+ s->session->cipher=pref_cipher ? pref_cipher : ssl_get_cipher_by_char(s,p+j);
6fc6879b JM	29	+ }
	30	+ }
	31	+#endif /* OPENSSL_NO_TLSEXT */
	32	+
fe2b7dda	33	if (j != 0 && j == s->session->session_id_length
6fc6879b JM	34	&& memcmp(p,s->session->session_id,j) == 0)
6fc6879b JM	35	{
6fc6879b	36	diff -upr openssl-0.9.8g.orig/ssl/s3_srvr.c openssl-0.9.8g/ssl/s3_srvr.c
fe2b7dda JM	37	--- openssl-0.9.8g.orig/ssl/s3_srvr.c 2007-09-30 21:55:59.000000000 +0300
fe2b7dda JM	38	+++ openssl-0.9.8g/ssl/s3_srvr.c 2008-04-15 17:10:37.000000000 +0300
6fc6879b JM	39	@@ -928,6 +928,59 @@ int ssl3_get_client_hello(SSL *s)
	40	SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,SSL_R_CLIENTHELLO_TLSEXT);
	41	goto err;
	42	}
	43	+
	44	+ /* Check if we want to use external pre-shared secret for this
	45	+ * handshake for not reused session only. We need to generate
	46	+ * server_random before calling tls_session_secret_cb in order to allow
	47	+ * SessionTicket processing to use it in key derivation. */
	48	+ {
	49	+ unsigned long Time;
	50	+ unsigned char *pos;
	51	+ Time=(unsigned long)time(NULL); /* Time */
	52	+ pos=s->s3->server_random;
	53	+ l2n(Time,pos);
	54	+ if (RAND_pseudo_bytes(pos,SSL3_RANDOM_SIZE-4) <= 0)
	55	+ {
	56	+ al=SSL_AD_INTERNAL_ERROR;
	57	+ goto f_err;
	58	+ }
	59	+ }
	60	+
	61	+ if (!s->hit && s->version >= TLS1_VERSION && s->tls_session_secret_cb)
	62	+ {
	63	+ SSL_CIPHER *pref_cipher=NULL;
	64	+
	65	+ s->session->master_key_length=sizeof(s->session->master_key);
	66	+ if(s->tls_session_secret_cb(s, s->session->master_key, &s->session->master_key_length,
	67	+ ciphers, &pref_cipher, s->tls_session_secret_cb_arg))
	68	+ {
	69	+ s->hit=1;
	70	+ s->session->ciphers=ciphers;
	71	+ s->session->verify_result=X509_V_OK;
	72	+
	73	+ ciphers=NULL;
	74	+
	75	+ /* check if some cipher was preferred by call back */
	76	+ pref_cipher=pref_cipher ? pref_cipher : ssl3_choose_cipher(s, s->session->ciphers, SSL_get_ciphers(s));
	77	+ if (pref_cipher == NULL)
	78	+ {
	79	+ al=SSL_AD_HANDSHAKE_FAILURE;
	80	+ SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,SSL_R_NO_SHARED_CIPHER);
	81	+ goto f_err;
	82	+ }
	83	+
	84	+ s->session->cipher=pref_cipher;
	85	+
	86	+ if (s->cipher_list)
	87	+ sk_SSL_CIPHER_free(s->cipher_list);
	88	+
	89	+ if (s->cipher_list_by_id)
	90	+ sk_SSL_CIPHER_free(s->cipher_list_by_id);
	91	+
	92	+ s->cipher_list = sk_SSL_CIPHER_dup(s->session->ciphers);
	93	+ s->cipher_list_by_id = sk_SSL_CIPHER_dup(s->session->ciphers);
	94	+ }
	95	+ }
	96	#endif
	97	/* Worst case, we will use the NULL compression, but if we have other
	98	* options, we will now look for them. We have i-1 compression
	99	@@ -1066,16 +1119,22 @@ int ssl3_send_server_hello(SSL *s)
	100	unsigned char *buf;
	101	unsigned char p,d;
	102	int i,sl;
103	- unsigned long l,Time;
104	+ unsigned long l;
105	+#ifdef OPENSSL_NO_TLSEXT
106	+ unsigned long Time;
107	+#endif
108
109	if (s->state == SSL3_ST_SW_SRVR_HELLO_A)
110	{
111	buf=(unsigned char *)s->init_buf->data;
112	+#ifdef OPENSSL_NO_TLSEXT
113	p=s->s3->server_random;
114	+ /* Generate server_random if it was not needed previously */
115	Time=(unsigned long)time(NULL); /* Time */
116	l2n(Time,p);
117	if (RAND_pseudo_bytes(p,SSL3_RANDOM_SIZE-4) <= 0)
118	return -1;
119	+#endif
120	/* Do the message type and length last */
121	d=p= &(buf[4]);
122
123	diff -upr openssl-0.9.8g.orig/ssl/ssl.h openssl-0.9.8g/ssl/ssl.h
fe2b7dda JM	124	--- openssl-0.9.8g.orig/ssl/ssl.h 2007-10-19 10:42:38.000000000 +0300
fe2b7dda JM	125	+++ openssl-0.9.8g/ssl/ssl.h 2008-04-15 17:10:37.000000000 +0300
6fc6879b JM	126	@@ -342,6 +342,7 @@ extern "C" {
	127	* 'struct ssl_st *' function parameters used to prototype callbacks
	128	* in SSL_CTX. */
	129	typedef struct ssl_st *ssl_crock_st;
	130	+typedef struct tls_extension_st TLS_EXTENSION;
	131
	132	/* used to hold info on the particular ciphers used */
	133	typedef struct ssl_cipher_st
	134	@@ -363,6 +364,8 @@ DECLARE_STACK_OF(SSL_CIPHER)
	135	typedef struct ssl_st SSL;
	136	typedef struct ssl_ctx_st SSL_CTX;
	137
	138	+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);
	139	+
	140	/* Used to hold functions for SSLv2 or SSLv3/TLSv1 functions */
	141	typedef struct ssl_method_st
	142	{
	143	@@ -1004,6 +1007,14 @@ struct ssl_st
	144	*/
	145	/* RFC4507 session ticket expected to be received or sent */
	146	int tlsext_ticket_expected;
	147	+
	148	+ /* TLS extensions */
	149	+ TLS_EXTENSION *tls_extension;
	150	+
	151	+ /* TLS pre-shared secret session resumption */
	152	+ tls_session_secret_cb_fn tls_session_secret_cb;
	153	+ void *tls_session_secret_cb_arg;
	154	+
	155	SSL_CTX * initial_ctx; /* initial ctx, used to store sessions */
	156	#define session_ctx initial_ctx
	157	#else
	158	@@ -1589,6 +1600,12 @@ void *SSL_COMP_get_compression_methods(v
	159	int SSL_COMP_add_compression_method(int id,void *cm);
	160	#endif
	161
	162	+/* TLS extensions functions */
	163	+int SSL_set_hello_extension(SSL s, int ext_type, void ext_data, int ext_len);
	164	+
	165	+/* Pre-shared secret session resumption functions */
	166	+int SSL_set_session_secret_cb(SSL s, tls_session_secret_cb_fn tls_session_secret_cb, void arg);
	167	+
	168	/* BEGIN ERROR CODES */
	169	/* The following lines are auto generated by the script mkerr.pl. Any changes
	170	* made after this point may be overwritten when the script is next run.
	171	@@ -1778,6 +1795,7 @@ void ERR_load_SSL_strings(void);
	172	#define SSL_F_TLS1_ENC 210
	173	#define SSL_F_TLS1_SETUP_KEY_BLOCK 211
	174	#define SSL_F_WRITE_PENDING 212
	175	+#define SSL_F_SSL_SET_HELLO_EXTENSION 213
	176
	177	/* Reason codes. */
	178	#define SSL_R_APP_DATA_IN_HANDSHAKE 100
	179	diff -upr openssl-0.9.8g.orig/ssl/ssl_err.c openssl-0.9.8g/ssl/ssl_err.c
fe2b7dda JM	180	--- openssl-0.9.8g.orig/ssl/ssl_err.c 2007-10-11 17:36:59.000000000 +0300
fe2b7dda JM	181	+++ openssl-0.9.8g/ssl/ssl_err.c 2008-04-15 17:10:37.000000000 +0300
6fc6879b JM	182	@@ -250,6 +250,7 @@ static ERR_STRING_DATA SSL_str_functs[]=
	183	{ERR_FUNC(SSL_F_TLS1_ENC), "TLS1_ENC"},
	184	{ERR_FUNC(SSL_F_TLS1_SETUP_KEY_BLOCK), "TLS1_SETUP_KEY_BLOCK"},
	185	{ERR_FUNC(SSL_F_WRITE_PENDING), "WRITE_PENDING"},
	186	+{ERR_FUNC(SSL_F_SSL_SET_HELLO_EXTENSION), "SSL_set_hello_extension"},
	187	{0,NULL}
	188	};
	189
	190	diff -upr openssl-0.9.8g.orig/ssl/ssl_sess.c openssl-0.9.8g/ssl/ssl_sess.c
fe2b7dda JM	191	--- openssl-0.9.8g.orig/ssl/ssl_sess.c 2007-10-19 10:36:34.000000000 +0300
fe2b7dda JM	192	+++ openssl-0.9.8g/ssl/ssl_sess.c 2008-04-15 17:10:37.000000000 +0300
6fc6879b JM	193	@@ -704,6 +704,52 @@ long SSL_CTX_get_timeout(const SSL_CTX *
	194	return(s->session_timeout);
	195	}
	196
	197	+#ifndef OPENSSL_NO_TLSEXT
	198	+int SSL_set_session_secret_cb(SSL s, int (tls_session_secret_cb)(SSL s, void secret, int *secret_len,
	199	+ STACK_OF(SSL_CIPHER) peer_ciphers, SSL_CIPHER cipher, void arg), void *arg)
	200	+{
	201	+ if (s == NULL) return(0);
	202	+ s->tls_session_secret_cb = tls_session_secret_cb;
	203	+ s->tls_session_secret_cb_arg = arg;
	204	+ return(1);
	205	+}
	206	+
	207	+int SSL_set_hello_extension(SSL s, int ext_type, void ext_data, int ext_len)
	208	+{
	209	+ if(s->version >= TLS1_VERSION)
	210	+ {
	211	+ if(s->tls_extension)
	212	+ {
	213	+ OPENSSL_free(s->tls_extension);
	214	+ s->tls_extension = NULL;
	215	+ }
	216	+
	217	+ s->tls_extension = OPENSSL_malloc(sizeof(TLS_EXTENSION) + ext_len);
	218	+ if(!s->tls_extension)
	219	+ {
	220	+ SSLerr(SSL_F_SSL_SET_HELLO_EXTENSION, ERR_R_MALLOC_FAILURE);
	221	+ return 0;
	222	+ }
	223	+
	224	+ s->tls_extension->type = ext_type;
	225	+
	226	+ if(ext_data)
	227	+ {
	228	+ s->tls_extension->length = ext_len;
	229	+ s->tls_extension->data = s->tls_extension + 1;
	230	+ memcpy(s->tls_extension->data, ext_data, ext_len);
	231	+ } else {
	232	+ s->tls_extension->length = 0;
	233	+ s->tls_extension->data = NULL;
	234	+ }
	235	+
	236	+ return 1;
	237	+ }
	238	+
	239	+ return 0;
	240	+}
	241	+#endif /* OPENSSL_NO_TLSEXT */
	242	+
	243	typedef struct timeout_param_st
	244	{
	245	SSL_CTX *ctx;
	246	diff -upr openssl-0.9.8g.orig/ssl/t1_lib.c openssl-0.9.8g/ssl/t1_lib.c
fe2b7dda JM	247	--- openssl-0.9.8g.orig/ssl/t1_lib.c 2007-10-19 10:44:10.000000000 +0300
fe2b7dda JM	248	+++ openssl-0.9.8g/ssl/t1_lib.c 2008-04-15 17:10:37.000000000 +0300
6fc6879b JM	249	@@ -105,6 +105,12 @@ int tls1_new(SSL *s)
	250
	251	void tls1_free(SSL *s)
	252	{
	253	+#ifndef OPENSSL_NO_TLSEXT
	254	+ if(s->tls_extension)
	255	+ {
	256	+ OPENSSL_free(s->tls_extension);
	257	+ }
	258	+#endif
	259	ssl3_free(s);
	260	}
	261
	262	@@ -174,8 +180,24 @@ unsigned char *ssl_add_clienthello_tlsex
	263	int ticklen;
	264	if (s->session && s->session->tlsext_tick)
	265	ticklen = s->session->tlsext_ticklen;
	266	+ else if (s->session && s->tls_extension &&
	267	+ s->tls_extension->type == TLSEXT_TYPE_session_ticket &&
	268	+ s->tls_extension->data)
	269	+ {
	270	+ ticklen = s->tls_extension->length;
	271	+ s->session->tlsext_tick = OPENSSL_malloc(ticklen);
	272	+ if (!s->session->tlsext_tick)
	273	+ return NULL;
	274	+ memcpy(s->session->tlsext_tick, s->tls_extension->data,
	275	+ ticklen);
	276	+ s->session->tlsext_ticklen = ticklen;
	277	+ }
	278	else
	279	ticklen = 0;
	280	+ if (ticklen == 0 && s->tls_extension &&
	281	+ s->tls_extension->type == TLSEXT_TYPE_session_ticket &&
	282	+ s->tls_extension->data == NULL)
	283	+ goto skip_ext;
	284	/* Check for enough room 2 for extension type, 2 for len
	285	* rest for ticket
	286	*/
	287	@@ -189,6 +211,7 @@ unsigned char *ssl_add_clienthello_tlsex
	288	ret += ticklen;
	289	}
	290	}
	291	+ skip_ext:
	292
	293	if ((extdatalen = ret-p-2)== 0)
	294	return p;
	295	@@ -543,6 +566,8 @@ int tls1_process_ticket(SSL *s, unsigned
	296	s->tlsext_ticket_expected = 1;
	297	return 0; /* Cache miss */
	298	}
	299	+ if (s->tls_session_secret_cb)
	300	+ return 0;
	301	return tls_decrypt_ticket(s, p, size, session_id, len,
	302	ret);
	303	}
	304	diff -upr openssl-0.9.8g.orig/ssl/tls1.h openssl-0.9.8g/ssl/tls1.h
fe2b7dda JM	305	--- openssl-0.9.8g.orig/ssl/tls1.h 2007-08-28 04:12:44.000000000 +0300
fe2b7dda JM	306	+++ openssl-0.9.8g/ssl/tls1.h 2008-04-15 17:10:37.000000000 +0300
6fc6879b JM	307	@@ -365,6 +365,14 @@ SSL_CTX_ctrl(ctx,SSL_CTRL_SET_TLSEXT_SER
	308	#define TLS_MD_MASTER_SECRET_CONST "\x6d\x61\x73\x74\x65\x72\x20\x73\x65\x63\x72\x65\x74" /master secret/
	309	#endif
	310
	311	+/* TLS extension struct */
	312	+struct tls_extension_st
	313	+{
	314	+ unsigned short type;
	315	+ unsigned short length;
	316	+ void *data;
	317	+};
	318	+
	319	#ifdef __cplusplus
	320	}
	321	#endif
	322	diff -upr openssl-0.9.8g.orig/util/ssleay.num openssl-0.9.8g/util/ssleay.num
fe2b7dda JM	323	--- openssl-0.9.8g.orig/util/ssleay.num 2007-08-13 01:31:16.000000000 +0300
fe2b7dda JM	324	+++ openssl-0.9.8g/util/ssleay.num 2008-04-15 17:10:37.000000000 +0300
6fc6879b JM	325	@@ -241,3 +241,5 @@ SSL_CTX_sess_get_remove_cb
	326	SSL_set_SSL_CTX 290 EXIST::FUNCTION:
	327	SSL_get_servername 291 EXIST::FUNCTION:TLSEXT
	328	SSL_get_servername_type 292 EXIST::FUNCTION:TLSEXT
	329	+SSL_set_hello_extension 305 EXIST::FUNCTION:TLSEXT
	330	+SSL_set_session_secret_cb 306 EXIST::FUNCTION:TLSEXT