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Update OpenSSL 0.9.8 patch for EAP-FAST support

Browse source 
The 0.9.9 branch was for development purposes only, so no one should be
using that in production and there is not much point in maintaining the
obsolete patch here either. Similarly, the old 0.9.8 versions are
obsolete at this point in time and taken into account the recent OpenSSL
vulnerabilities, anything older than 0.9.8za should not really be used.

Prepare an updated version of the TLS session ticket patch based on the
current OpenSSL 0.9.8za release and remove all the older TLS extension
patches.

Signed-off-by: Jouni Malinen <j@w1.fi>
This commit is contained in:
Jouni Malinen 2014-06-05 20:43:00 +03:00
parent 2a57c33e25
commit f5fa824e9a
8 changed files with 37 additions and 2700 deletions
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429
patches/openssl-0.9.8-tls-extensions.patch
View file

@ -1,429 +0,0 @@
This patch is adding support for TLS hello extensions and externally
generated pre-shared key material to OpenSSL 0.9.8. 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).
diff -uprN openssl-0.9.8.orig/include/openssl/ssl.h openssl-0.9.8/include/openssl/ssl.h
--- openssl-0.9.8.orig/include/openssl/ssl.h 2005-06-10 12:51:16.000000000 -0700
+++ openssl-0.9.8/include/openssl/ssl.h 2005-07-19 20:02:15.000000000 -0700
@@ -340,6 +340,7 @@ 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
@@ -361,6 +362,8 @@ 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
{
@@ -968,6 +971,15 @@ struct ssl_st
int first_packet;
int client_version; /* what was passed, used for
* SSLv3/TLS rollback check */
+
+ /* TLS externsions */
+ TLS_EXTENSION *tls_extension;
+ int (*tls_extension_cb)(SSL *s, TLS_EXTENSION *tls_ext, void *arg);
+ void *tls_extension_cb_arg;
+
+ /* TLS pre-shared secret session resumption */
+ tls_session_secret_cb_fn tls_session_secret_cb;
+ void *tls_session_secret_cb_arg;
};
#ifdef __cplusplus
@@ -1533,6 +1545,13 @@ 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);
+int SSL_set_hello_extension_cb(SSL *s, int (*cb)(SSL *, TLS_EXTENSION *, void *), void *arg);
+
+/* 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.
@@ -1714,6 +1733,7 @@ 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 -uprN openssl-0.9.8.orig/include/openssl/tls1.h openssl-0.9.8/include/openssl/tls1.h
--- openssl-0.9.8.orig/include/openssl/tls1.h 2003-07-22 05:34:21.000000000 -0700
+++ openssl-0.9.8/include/openssl/tls1.h 2005-07-19 20:02:15.000000000 -0700
@@ -282,6 +282,14 @@ extern "C" {
#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 -uprN openssl-0.9.8.orig/ssl/Makefile openssl-0.9.8/ssl/Makefile
--- openssl-0.9.8.orig/ssl/Makefile 2005-05-30 16:20:30.000000000 -0700
+++ openssl-0.9.8/ssl/Makefile 2005-07-19 20:02:15.000000000 -0700
@@ -24,7 +24,7 @@ LIBSRC= \
s2_meth.c s2_srvr.c s2_clnt.c s2_lib.c s2_enc.c s2_pkt.c \
s3_meth.c s3_srvr.c s3_clnt.c s3_lib.c s3_enc.c s3_pkt.c s3_both.c \
s23_meth.c s23_srvr.c s23_clnt.c s23_lib.c s23_pkt.c \
- t1_meth.c t1_srvr.c t1_clnt.c t1_lib.c t1_enc.c \
+ t1_meth.c t1_srvr.c t1_clnt.c t1_lib.c t1_enc.c t1_ext.c \
d1_meth.c d1_srvr.c d1_clnt.c d1_lib.c d1_pkt.c \
d1_both.c d1_enc.c \
ssl_lib.c ssl_err2.c ssl_cert.c ssl_sess.c \
@@ -35,7 +35,7 @@ LIBOBJ= \
s2_meth.o s2_srvr.o s2_clnt.o s2_lib.o s2_enc.o s2_pkt.o \
s3_meth.o s3_srvr.o s3_clnt.o s3_lib.o s3_enc.o s3_pkt.o s3_both.o \
s23_meth.o s23_srvr.o s23_clnt.o s23_lib.o s23_pkt.o \
- t1_meth.o t1_srvr.o t1_clnt.o t1_lib.o t1_enc.o \
+ t1_meth.o t1_srvr.o t1_clnt.o t1_lib.o t1_enc.o t1_ext.o \
d1_meth.o d1_srvr.o d1_clnt.o d1_lib.o d1_pkt.o \
d1_both.o d1_enc.o \
ssl_lib.o ssl_err2.o ssl_cert.o ssl_sess.o \
@@ -968,3 +968,4 @@ t1_srvr.o: ../include/openssl/ssl23.h ..
t1_srvr.o: ../include/openssl/stack.h ../include/openssl/symhacks.h
t1_srvr.o: ../include/openssl/tls1.h ../include/openssl/x509.h
t1_srvr.o: ../include/openssl/x509_vfy.h ssl_locl.h t1_srvr.c
+t1_ext.o: t1_ext.c ssl_locl.h
diff -uprN openssl-0.9.8.orig/ssl/s3_clnt.c openssl-0.9.8/ssl/s3_clnt.c
--- openssl-0.9.8.orig/ssl/s3_clnt.c 2005-05-16 03:11:03.000000000 -0700
+++ openssl-0.9.8/ssl/s3_clnt.c 2005-07-19 20:02:15.000000000 -0700
@@ -606,6 +606,20 @@ int ssl3_client_hello(SSL *s)
}
*(p++)=0; /* Add the NULL method */
+ /* send client hello extensions if any */
+ if (s->version >= TLS1_VERSION && s->tls_extension)
+ {
+ // set the total extensions length
+ s2n(s->tls_extension->length + 4, p);
+
+ // put the extensions with type and length
+ s2n(s->tls_extension->type, p);
+ s2n(s->tls_extension->length, p);
+
+ memcpy(p, s->tls_extension->data, s->tls_extension->length);
+ p+=s->tls_extension->length;
+ }
+
l=(p-d);
d=buf;
*(d++)=SSL3_MT_CLIENT_HELLO;
@@ -628,7 +642,7 @@ int ssl3_get_server_hello(SSL *s)
STACK_OF(SSL_CIPHER) *sk;
SSL_CIPHER *c;
unsigned char *p,*d;
- int i,al,ok;
+ int i,al,ok,pre_shared;
unsigned int j;
long n;
SSL_COMP *comp;
@@ -693,7 +707,24 @@ int ssl3_get_server_hello(SSL *s)
goto f_err;
}
- if (j != 0 && j == s->session->session_id_length
+ /* check if we want to resume the session based on external pre-shared secret */
+ pre_shared = 0;
+ 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->hit=1;
+ s->session->cipher=pref_cipher ? pref_cipher : ssl_get_cipher_by_char(s,p+j);
+ s->session->session_id_length = j;
+ memcpy(s->session->session_id, p, j);
+ pre_shared = 1;
+ }
+ }
+
+ if ((pre_shared || j != 0) && j == s->session->session_id_length
&& memcmp(p,s->session->session_id,j) == 0)
{
if(s->sid_ctx_length != s->session->sid_ctx_length
diff -uprN openssl-0.9.8.orig/ssl/s3_srvr.c openssl-0.9.8/ssl/s3_srvr.c
--- openssl-0.9.8.orig/ssl/s3_srvr.c 2005-05-22 17:32:55.000000000 -0700
+++ openssl-0.9.8/ssl/s3_srvr.c 2005-07-19 20:02:15.000000000 -0700
@@ -955,6 +955,75 @@ int ssl3_get_client_hello(SSL *s)
}
#endif
+ /* Check for TLS client hello extension here */
+ if (p < (d+n) && s->version >= TLS1_VERSION)
+ {
+ if (s->tls_extension_cb)
+ {
+ TLS_EXTENSION tls_ext;
+ unsigned short ext_total_len;
+
+ n2s(p, ext_total_len);
+ n2s(p, tls_ext.type);
+ n2s(p, tls_ext.length);
+
+ // sanity check in TLS extension len
+ if (tls_ext.length > (d+n) - p)
+ {
+ // just cut the lenth to packet border
+ tls_ext.length = (d+n) - p;
+ }
+
+ tls_ext.data = p;
+
+ // returns an alert code or 0
+ al = s->tls_extension_cb(s, &tls_ext, s->tls_extension_cb_arg);
+ if (al != 0)
+ {
+ SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,SSL_R_PEER_ERROR);
+ goto f_err;
+ }
+ }
+ }
+
+ /* Check if we want to use external pre-shared secret for this handshake */
+ /* for not reused session only */
+ 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);
+ }
+ }
+
/* Given s->session->ciphers and SSL_get_ciphers, we must
* pick a cipher */
diff -uprN openssl-0.9.8.orig/ssl/ssl_err.c openssl-0.9.8/ssl/ssl_err.c
--- openssl-0.9.8.orig/ssl/ssl_err.c 2005-06-10 12:51:16.000000000 -0700
+++ openssl-0.9.8/ssl/ssl_err.c 2005-07-19 20:02:15.000000000 -0700
@@ -242,6 +242,7 @@ 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 -uprN openssl-0.9.8.orig/ssl/ssl.h openssl-0.9.8/ssl/ssl.h
--- openssl-0.9.8.orig/ssl/ssl.h 2005-06-10 12:51:16.000000000 -0700
+++ openssl-0.9.8/ssl/ssl.h 2005-07-19 20:02:15.000000000 -0700
@@ -340,6 +340,7 @@ 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
@@ -361,6 +362,8 @@ 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
{
@@ -968,6 +971,15 @@ struct ssl_st
int first_packet;
int client_version; /* what was passed, used for
* SSLv3/TLS rollback check */
+
+ /* TLS externsions */
+ TLS_EXTENSION *tls_extension;
+ int (*tls_extension_cb)(SSL *s, TLS_EXTENSION *tls_ext, void *arg);
+ void *tls_extension_cb_arg;
+
+ /* TLS pre-shared secret session resumption */
+ tls_session_secret_cb_fn tls_session_secret_cb;
+ void *tls_session_secret_cb_arg;
};
#ifdef __cplusplus
@@ -1533,6 +1545,13 @@ 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);
+int SSL_set_hello_extension_cb(SSL *s, int (*cb)(SSL *, TLS_EXTENSION *, void *), void *arg);
+
+/* 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.
@@ -1714,6 +1733,7 @@ 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 -uprN openssl-0.9.8.orig/ssl/ssl_sess.c openssl-0.9.8/ssl/ssl_sess.c
--- openssl-0.9.8.orig/ssl/ssl_sess.c 2005-04-29 13:10:06.000000000 -0700
+++ openssl-0.9.8/ssl/ssl_sess.c 2005-07-19 20:02:15.000000000 -0700
@@ -656,6 +656,15 @@ long SSL_CTX_get_timeout(const SSL_CTX *
return(s->session_timeout);
}
+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);
+}
+
typedef struct timeout_param_st
{
SSL_CTX *ctx;
diff -uprN openssl-0.9.8.orig/ssl/t1_ext.c openssl-0.9.8/ssl/t1_ext.c
--- openssl-0.9.8.orig/ssl/t1_ext.c 1969-12-31 16:00:00.000000000 -0800
+++ openssl-0.9.8/ssl/t1_ext.c 2005-07-19 20:03:29.000000000 -0700
@@ -0,0 +1,48 @@
+
+#include <stdio.h>
+#include "ssl_locl.h"
+
+
+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;
+ }
+
+ if(ext_data)
+ {
+ 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;
+ s->tls_extension->length = ext_len;
+ s->tls_extension->data = s->tls_extension + 1;
+ memcpy(s->tls_extension->data, ext_data, ext_len);
+ }
+
+ return 1;
+ }
+
+ return 0;
+}
+
+int SSL_set_hello_extension_cb(SSL *s, int (*cb)(SSL *, TLS_EXTENSION *, void *), void *arg)
+{
+ if(s->version >= TLS1_VERSION)
+ {
+ s->tls_extension_cb = cb;
+ s->tls_extension_cb_arg = arg;
+
+ return 1;
+ }
+
+ return 0;
+}
diff -uprN openssl-0.9.8.orig/ssl/t1_lib.c openssl-0.9.8/ssl/t1_lib.c
--- openssl-0.9.8.orig/ssl/t1_lib.c 2005-04-26 09:02:40.000000000 -0700
+++ openssl-0.9.8/ssl/t1_lib.c 2005-07-19 20:02:15.000000000 -0700
@@ -131,6 +131,10 @@ int tls1_new(SSL *s)
void tls1_free(SSL *s)
{
+ if(s->tls_extension)
+ {
+ OPENSSL_free(s->tls_extension);
+ }
ssl3_free(s);
}
diff -uprN openssl-0.9.8.orig/ssl/tls1.h openssl-0.9.8/ssl/tls1.h
--- openssl-0.9.8.orig/ssl/tls1.h 2003-07-22 05:34:21.000000000 -0700
+++ openssl-0.9.8/ssl/tls1.h 2005-07-19 20:02:15.000000000 -0700
@@ -282,6 +282,14 @@ extern "C" {
#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 -uprN openssl-0.9.8.orig/util/ssleay.num openssl-0.9.8/util/ssleay.num
--- openssl-0.9.8.orig/util/ssleay.num 2005-05-08 17:22:02.000000000 -0700
+++ openssl-0.9.8/util/ssleay.num 2005-07-19 20:02:15.000000000 -0700
@@ -226,3 +226,6 @@ DTLSv1_server_method
SSL_COMP_get_compression_methods 276 EXIST:!VMS:FUNCTION:COMP
SSL_COMP_get_compress_methods 276 EXIST:VMS:FUNCTION:COMP
SSL_SESSION_get_id 277 EXIST::FUNCTION:
+SSL_set_hello_extension 278 EXIST::FUNCTION:
+SSL_set_hello_extension_cb 279 EXIST::FUNCTION:
+SSL_set_session_secret_cb 280 EXIST::FUNCTION:

429
patches/openssl-0.9.8d-tls-extensions.patch
View file

@ -1,429 +0,0 @@
This patch is adding support for TLS hello extensions and externally
generated pre-shared key material to OpenSSL 0.9.8d. 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).
diff -uprN openssl-0.9.8d.orig/include/openssl/ssl.h openssl-0.9.8d/include/openssl/ssl.h
--- openssl-0.9.8d.orig/include/openssl/ssl.h 2006-06-14 06:52:49.000000000 -0700
+++ openssl-0.9.8d/include/openssl/ssl.h 2006-12-10 08:20:02.000000000 -0800
@@ -345,6 +345,7 @@ 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
@@ -366,6 +367,8 @@ 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
{
@@ -973,6 +976,15 @@ struct ssl_st
int first_packet;
int client_version; /* what was passed, used for
* SSLv3/TLS rollback check */
+
+ /* TLS externsions */
+ TLS_EXTENSION *tls_extension;
+ int (*tls_extension_cb)(SSL *s, TLS_EXTENSION *tls_ext, void *arg);
+ void *tls_extension_cb_arg;
+
+ /* TLS pre-shared secret session resumption */
+ tls_session_secret_cb_fn tls_session_secret_cb;
+ void *tls_session_secret_cb_arg;
};
#ifdef __cplusplus
@@ -1538,6 +1550,13 @@ 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);
+int SSL_set_hello_extension_cb(SSL *s, int (*cb)(SSL *, TLS_EXTENSION *, void *), void *arg);
+
+/* 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.
@@ -1719,6 +1738,7 @@ 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 -uprN openssl-0.9.8d.orig/include/openssl/tls1.h openssl-0.9.8d/include/openssl/tls1.h
--- openssl-0.9.8d.orig/include/openssl/tls1.h 2006-06-14 10:52:01.000000000 -0700
+++ openssl-0.9.8d/include/openssl/tls1.h 2006-12-10 08:20:02.000000000 -0800
@@ -296,6 +296,14 @@ extern "C" {
#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 -uprN openssl-0.9.8d.orig/ssl/Makefile openssl-0.9.8d/ssl/Makefile
--- openssl-0.9.8d.orig/ssl/Makefile 2006-02-03 17:49:35.000000000 -0800
+++ openssl-0.9.8d/ssl/Makefile 2006-12-10 08:20:02.000000000 -0800
@@ -24,7 +24,7 @@ LIBSRC= \
s2_meth.c s2_srvr.c s2_clnt.c s2_lib.c s2_enc.c s2_pkt.c \
s3_meth.c s3_srvr.c s3_clnt.c s3_lib.c s3_enc.c s3_pkt.c s3_both.c \
s23_meth.c s23_srvr.c s23_clnt.c s23_lib.c s23_pkt.c \
- t1_meth.c t1_srvr.c t1_clnt.c t1_lib.c t1_enc.c \
+ t1_meth.c t1_srvr.c t1_clnt.c t1_lib.c t1_enc.c t1_ext.c \
d1_meth.c d1_srvr.c d1_clnt.c d1_lib.c d1_pkt.c \
d1_both.c d1_enc.c \
ssl_lib.c ssl_err2.c ssl_cert.c ssl_sess.c \
@@ -35,7 +35,7 @@ LIBOBJ= \
s2_meth.o s2_srvr.o s2_clnt.o s2_lib.o s2_enc.o s2_pkt.o \
s3_meth.o s3_srvr.o s3_clnt.o s3_lib.o s3_enc.o s3_pkt.o s3_both.o \
s23_meth.o s23_srvr.o s23_clnt.o s23_lib.o s23_pkt.o \
- t1_meth.o t1_srvr.o t1_clnt.o t1_lib.o t1_enc.o \
+ t1_meth.o t1_srvr.o t1_clnt.o t1_lib.o t1_enc.o t1_ext.o \
d1_meth.o d1_srvr.o d1_clnt.o d1_lib.o d1_pkt.o \
d1_both.o d1_enc.o \
ssl_lib.o ssl_err2.o ssl_cert.o ssl_sess.o \
@@ -968,3 +968,4 @@ t1_srvr.o: ../include/openssl/ssl23.h ..
t1_srvr.o: ../include/openssl/stack.h ../include/openssl/symhacks.h
t1_srvr.o: ../include/openssl/tls1.h ../include/openssl/x509.h
t1_srvr.o: ../include/openssl/x509_vfy.h ssl_locl.h t1_srvr.c
+t1_ext.o: t1_ext.c ssl_locl.h
diff -uprN openssl-0.9.8d.orig/ssl/s3_clnt.c openssl-0.9.8d/ssl/s3_clnt.c
--- openssl-0.9.8d.orig/ssl/s3_clnt.c 2005-12-12 23:41:46.000000000 -0800
+++ openssl-0.9.8d/ssl/s3_clnt.c 2006-12-10 08:20:02.000000000 -0800
@@ -601,6 +601,20 @@ int ssl3_client_hello(SSL *s)
#endif
*(p++)=0; /* Add the NULL method */
+ /* send client hello extensions if any */
+ if (s->version >= TLS1_VERSION && s->tls_extension)
+ {
+ // set the total extensions length
+ s2n(s->tls_extension->length + 4, p);
+
+ // put the extensions with type and length
+ s2n(s->tls_extension->type, p);
+ s2n(s->tls_extension->length, p);
+
+ memcpy(p, s->tls_extension->data, s->tls_extension->length);
+ p+=s->tls_extension->length;
+ }
+
l=(p-d);
d=buf;
*(d++)=SSL3_MT_CLIENT_HELLO;
@@ -623,7 +637,7 @@ int ssl3_get_server_hello(SSL *s)
STACK_OF(SSL_CIPHER) *sk;
SSL_CIPHER *c;
unsigned char *p,*d;
- int i,al,ok;
+ int i,al,ok,pre_shared;
unsigned int j;
long n;
#ifndef OPENSSL_NO_COMP
@@ -690,7 +704,24 @@ int ssl3_get_server_hello(SSL *s)
goto f_err;
}
- if (j != 0 && j == s->session->session_id_length
+ /* check if we want to resume the session based on external pre-shared secret */
+ pre_shared = 0;
+ 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->hit=1;
+ s->session->cipher=pref_cipher ? pref_cipher : ssl_get_cipher_by_char(s,p+j);
+ s->session->session_id_length = j;
+ memcpy(s->session->session_id, p, j);
+ pre_shared = 1;
+ }
+ }
+
+ if ((pre_shared || j != 0) && j == s->session->session_id_length
&& memcmp(p,s->session->session_id,j) == 0)
{
if(s->sid_ctx_length != s->session->sid_ctx_length
diff -uprN openssl-0.9.8d.orig/ssl/s3_srvr.c openssl-0.9.8d/ssl/s3_srvr.c
--- openssl-0.9.8d.orig/ssl/s3_srvr.c 2006-09-28 04:29:03.000000000 -0700
+++ openssl-0.9.8d/ssl/s3_srvr.c 2006-12-10 08:20:02.000000000 -0800
@@ -943,6 +943,75 @@ int ssl3_get_client_hello(SSL *s)
}
#endif
+ /* Check for TLS client hello extension here */
+ if (p < (d+n) && s->version >= TLS1_VERSION)
+ {
+ if (s->tls_extension_cb)
+ {
+ TLS_EXTENSION tls_ext;
+ unsigned short ext_total_len;
+
+ n2s(p, ext_total_len);
+ n2s(p, tls_ext.type);
+ n2s(p, tls_ext.length);
+
+ // sanity check in TLS extension len
+ if (tls_ext.length > (d+n) - p)
+ {
+ // just cut the lenth to packet border
+ tls_ext.length = (d+n) - p;
+ }
+
+ tls_ext.data = p;
+
+ // returns an alert code or 0
+ al = s->tls_extension_cb(s, &tls_ext, s->tls_extension_cb_arg);
+ if (al != 0)
+ {
+ SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,SSL_R_PEER_ERROR);
+ goto f_err;
+ }
+ }
+ }
+
+ /* Check if we want to use external pre-shared secret for this handshake */
+ /* for not reused session only */
+ 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);
+ }
+ }
+
/* Given s->session->ciphers and SSL_get_ciphers, we must
* pick a cipher */
diff -uprN openssl-0.9.8d.orig/ssl/ssl.h openssl-0.9.8d/ssl/ssl.h
--- openssl-0.9.8d.orig/ssl/ssl.h 2006-06-14 06:52:49.000000000 -0700
+++ openssl-0.9.8d/ssl/ssl.h 2006-12-10 08:20:02.000000000 -0800
@@ -345,6 +345,7 @@ 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
@@ -366,6 +367,8 @@ 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
{
@@ -973,6 +976,15 @@ struct ssl_st
int first_packet;
int client_version; /* what was passed, used for
* SSLv3/TLS rollback check */
+
+ /* TLS externsions */
+ TLS_EXTENSION *tls_extension;
+ int (*tls_extension_cb)(SSL *s, TLS_EXTENSION *tls_ext, void *arg);
+ void *tls_extension_cb_arg;
+
+ /* TLS pre-shared secret session resumption */
+ tls_session_secret_cb_fn tls_session_secret_cb;
+ void *tls_session_secret_cb_arg;
};
#ifdef __cplusplus
@@ -1538,6 +1550,13 @@ 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);
+int SSL_set_hello_extension_cb(SSL *s, int (*cb)(SSL *, TLS_EXTENSION *, void *), void *arg);
+
+/* 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.
@@ -1719,6 +1738,7 @@ 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 -uprN openssl-0.9.8d.orig/ssl/ssl_err.c openssl-0.9.8d/ssl/ssl_err.c
--- openssl-0.9.8d.orig/ssl/ssl_err.c 2006-01-08 13:52:46.000000000 -0800
+++ openssl-0.9.8d/ssl/ssl_err.c 2006-12-10 08:20:02.000000000 -0800
@@ -242,6 +242,7 @@ 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 -uprN openssl-0.9.8d.orig/ssl/ssl_sess.c openssl-0.9.8d/ssl/ssl_sess.c
--- openssl-0.9.8d.orig/ssl/ssl_sess.c 2005-12-30 15:51:57.000000000 -0800
+++ openssl-0.9.8d/ssl/ssl_sess.c 2006-12-10 08:20:02.000000000 -0800
@@ -656,6 +656,15 @@ long SSL_CTX_get_timeout(const SSL_CTX *
return(s->session_timeout);
}
+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);
+}
+
typedef struct timeout_param_st
{
SSL_CTX *ctx;
diff -uprN openssl-0.9.8d.orig/ssl/t1_ext.c openssl-0.9.8d/ssl/t1_ext.c
--- openssl-0.9.8d.orig/ssl/t1_ext.c 1969-12-31 16:00:00.000000000 -0800
+++ openssl-0.9.8d/ssl/t1_ext.c 2006-12-10 08:20:02.000000000 -0800
@@ -0,0 +1,48 @@
+
+#include <stdio.h>
+#include "ssl_locl.h"
+
+
+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;
+ }
+
+ if(ext_data)
+ {
+ 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;
+ s->tls_extension->length = ext_len;
+ s->tls_extension->data = s->tls_extension + 1;
+ memcpy(s->tls_extension->data, ext_data, ext_len);
+ }
+
+ return 1;
+ }
+
+ return 0;
+}
+
+int SSL_set_hello_extension_cb(SSL *s, int (*cb)(SSL *, TLS_EXTENSION *, void *), void *arg)
+{
+ if(s->version >= TLS1_VERSION)
+ {
+ s->tls_extension_cb = cb;
+ s->tls_extension_cb_arg = arg;
+
+ return 1;
+ }
+
+ return 0;
+}
diff -uprN openssl-0.9.8d.orig/ssl/t1_lib.c openssl-0.9.8d/ssl/t1_lib.c
--- openssl-0.9.8d.orig/ssl/t1_lib.c 2005-08-05 16:52:07.000000000 -0700
+++ openssl-0.9.8d/ssl/t1_lib.c 2006-12-10 08:20:02.000000000 -0800
@@ -97,6 +97,10 @@ int tls1_new(SSL *s)
void tls1_free(SSL *s)
{
+ if(s->tls_extension)
+ {
+ OPENSSL_free(s->tls_extension);
+ }
ssl3_free(s);
}
diff -uprN openssl-0.9.8d.orig/ssl/tls1.h openssl-0.9.8d/ssl/tls1.h
--- openssl-0.9.8d.orig/ssl/tls1.h 2006-06-14 10:52:01.000000000 -0700
+++ openssl-0.9.8d/ssl/tls1.h 2006-12-10 08:20:02.000000000 -0800
@@ -296,6 +296,14 @@ extern "C" {
#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 -uprN openssl-0.9.8d.orig/util/ssleay.num openssl-0.9.8d/util/ssleay.num
--- openssl-0.9.8d.orig/util/ssleay.num 2005-05-08 17:22:02.000000000 -0700
+++ openssl-0.9.8d/util/ssleay.num 2006-12-10 08:20:02.000000000 -0800
@@ -226,3 +226,6 @@ DTLSv1_server_method
SSL_COMP_get_compression_methods 276 EXIST:!VMS:FUNCTION:COMP
SSL_COMP_get_compress_methods 276 EXIST:VMS:FUNCTION:COMP
SSL_SESSION_get_id 277 EXIST::FUNCTION:
+SSL_set_hello_extension 278 EXIST::FUNCTION:
+SSL_set_hello_extension_cb 279 EXIST::FUNCTION:
+SSL_set_session_secret_cb 280 EXIST::FUNCTION:

353
patches/openssl-0.9.8e-tls-extensions.patch
View file

@ -1,353 +0,0 @@
This patch is adding support for TLS hello extensions and externally
generated pre-shared key material to OpenSSL 0.9.8e. 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).
diff -uprN openssl-0.9.8e.orig/ssl/Makefile openssl-0.9.8e/ssl/Makefile
--- openssl-0.9.8e.orig/ssl/Makefile 2006-02-03 17:49:35.000000000 -0800
+++ openssl-0.9.8e/ssl/Makefile 2007-03-22 20:23:19.000000000 -0700
@@ -24,7 +24,7 @@ LIBSRC= \
s2_meth.c s2_srvr.c s2_clnt.c s2_lib.c s2_enc.c s2_pkt.c \
s3_meth.c s3_srvr.c s3_clnt.c s3_lib.c s3_enc.c s3_pkt.c s3_both.c \
s23_meth.c s23_srvr.c s23_clnt.c s23_lib.c s23_pkt.c \
- t1_meth.c t1_srvr.c t1_clnt.c t1_lib.c t1_enc.c \
+ t1_meth.c t1_srvr.c t1_clnt.c t1_lib.c t1_enc.c t1_ext.c \
d1_meth.c d1_srvr.c d1_clnt.c d1_lib.c d1_pkt.c \
d1_both.c d1_enc.c \
ssl_lib.c ssl_err2.c ssl_cert.c ssl_sess.c \
@@ -35,7 +35,7 @@ LIBOBJ= \
s2_meth.o s2_srvr.o s2_clnt.o s2_lib.o s2_enc.o s2_pkt.o \
s3_meth.o s3_srvr.o s3_clnt.o s3_lib.o s3_enc.o s3_pkt.o s3_both.o \
s23_meth.o s23_srvr.o s23_clnt.o s23_lib.o s23_pkt.o \
- t1_meth.o t1_srvr.o t1_clnt.o t1_lib.o t1_enc.o \
+ t1_meth.o t1_srvr.o t1_clnt.o t1_lib.o t1_enc.o t1_ext.o \
d1_meth.o d1_srvr.o d1_clnt.o d1_lib.o d1_pkt.o \
d1_both.o d1_enc.o \
ssl_lib.o ssl_err2.o ssl_cert.o ssl_sess.o \
@@ -968,3 +968,4 @@ t1_srvr.o: ../include/openssl/ssl23.h ..
t1_srvr.o: ../include/openssl/stack.h ../include/openssl/symhacks.h
t1_srvr.o: ../include/openssl/tls1.h ../include/openssl/x509.h
t1_srvr.o: ../include/openssl/x509_vfy.h ssl_locl.h t1_srvr.c
+t1_ext.o: t1_ext.c ssl_locl.h
diff -uprN openssl-0.9.8e.orig/ssl/s3_clnt.c openssl-0.9.8e/ssl/s3_clnt.c
--- openssl-0.9.8e.orig/ssl/s3_clnt.c 2006-09-28 05:23:15.000000000 -0700
+++ openssl-0.9.8e/ssl/s3_clnt.c 2007-03-22 20:23:19.000000000 -0700
@@ -601,6 +601,20 @@ int ssl3_client_hello(SSL *s)
#endif
*(p++)=0; /* Add the NULL method */
+ /* send client hello extensions if any */
+ if (s->version >= TLS1_VERSION && s->tls_extension)
+ {
+ // set the total extensions length
+ s2n(s->tls_extension->length + 4, p);
+
+ // put the extensions with type and length
+ s2n(s->tls_extension->type, p);
+ s2n(s->tls_extension->length, p);
+
+ memcpy(p, s->tls_extension->data, s->tls_extension->length);
+ p+=s->tls_extension->length;
+ }
+
l=(p-d);
d=buf;
*(d++)=SSL3_MT_CLIENT_HELLO;
@@ -623,7 +637,7 @@ int ssl3_get_server_hello(SSL *s)
STACK_OF(SSL_CIPHER) *sk;
SSL_CIPHER *c;
unsigned char *p,*d;
- int i,al,ok;
+ int i,al,ok,pre_shared;
unsigned int j;
long n;
#ifndef OPENSSL_NO_COMP
@@ -690,7 +704,24 @@ int ssl3_get_server_hello(SSL *s)
goto f_err;
}
- if (j != 0 && j == s->session->session_id_length
+ /* check if we want to resume the session based on external pre-shared secret */
+ pre_shared = 0;
+ 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->hit=1;
+ s->session->cipher=pref_cipher ? pref_cipher : ssl_get_cipher_by_char(s,p+j);
+ s->session->session_id_length = j;
+ memcpy(s->session->session_id, p, j);
+ pre_shared = 1;
+ }
+ }
+
+ if ((pre_shared || j != 0) && j == s->session->session_id_length
&& memcmp(p,s->session->session_id,j) == 0)
{
if(s->sid_ctx_length != s->session->sid_ctx_length
diff -uprN openssl-0.9.8e.orig/ssl/s3_srvr.c openssl-0.9.8e/ssl/s3_srvr.c
--- openssl-0.9.8e.orig/ssl/s3_srvr.c 2007-02-07 12:36:40.000000000 -0800
+++ openssl-0.9.8e/ssl/s3_srvr.c 2007-03-22 20:23:19.000000000 -0700
@@ -945,6 +945,75 @@ int ssl3_get_client_hello(SSL *s)
}
#endif
+ /* Check for TLS client hello extension here */
+ if (p < (d+n) && s->version >= TLS1_VERSION)
+ {
+ if (s->tls_extension_cb)
+ {
+ TLS_EXTENSION tls_ext;
+ unsigned short ext_total_len;
+
+ n2s(p, ext_total_len);
+ n2s(p, tls_ext.type);
+ n2s(p, tls_ext.length);
+
+ // sanity check in TLS extension len
+ if (tls_ext.length > (d+n) - p)
+ {
+ // just cut the lenth to packet border
+ tls_ext.length = (d+n) - p;
+ }
+
+ tls_ext.data = p;
+
+ // returns an alert code or 0
+ al = s->tls_extension_cb(s, &tls_ext, s->tls_extension_cb_arg);
+ if (al != 0)
+ {
+ SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,SSL_R_PEER_ERROR);
+ goto f_err;
+ }
+ }
+ }
+
+ /* Check if we want to use external pre-shared secret for this handshake */
+ /* for not reused session only */
+ 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);
+ }
+ }
+
/* Given s->session->ciphers and SSL_get_ciphers, we must
* pick a cipher */
diff -uprN openssl-0.9.8e.orig/ssl/ssl.h openssl-0.9.8e/ssl/ssl.h
--- openssl-0.9.8e.orig/ssl/ssl.h 2007-02-19 09:55:07.000000000 -0800
+++ openssl-0.9.8e/ssl/ssl.h 2007-03-22 20:23:19.000000000 -0700
@@ -345,6 +345,7 @@ 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
@@ -366,6 +367,8 @@ 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
{
@@ -973,6 +976,15 @@ struct ssl_st
int first_packet;
int client_version; /* what was passed, used for
* SSLv3/TLS rollback check */
+
+ /* TLS externsions */
+ TLS_EXTENSION *tls_extension;
+ int (*tls_extension_cb)(SSL *s, TLS_EXTENSION *tls_ext, void *arg);
+ void *tls_extension_cb_arg;
+
+ /* TLS pre-shared secret session resumption */
+ tls_session_secret_cb_fn tls_session_secret_cb;
+ void *tls_session_secret_cb_arg;
};
#ifdef __cplusplus
@@ -1538,6 +1550,13 @@ 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);
+int SSL_set_hello_extension_cb(SSL *s, int (*cb)(SSL *, TLS_EXTENSION *, void *), void *arg);
+
+/* 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.
@@ -1719,6 +1738,7 @@ 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 -uprN openssl-0.9.8e.orig/ssl/ssl_err.c openssl-0.9.8e/ssl/ssl_err.c
--- openssl-0.9.8e.orig/ssl/ssl_err.c 2006-11-21 12:14:46.000000000 -0800
+++ openssl-0.9.8e/ssl/ssl_err.c 2007-03-22 20:23:19.000000000 -0700
@@ -242,6 +242,7 @@ 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 -uprN openssl-0.9.8e.orig/ssl/ssl_sess.c openssl-0.9.8e/ssl/ssl_sess.c
--- openssl-0.9.8e.orig/ssl/ssl_sess.c 2007-02-10 02:40:24.000000000 -0800
+++ openssl-0.9.8e/ssl/ssl_sess.c 2007-03-22 20:23:19.000000000 -0700
@@ -656,6 +656,15 @@ long SSL_CTX_get_timeout(const SSL_CTX *
return(s->session_timeout);
}
+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);
+}
+
typedef struct timeout_param_st
{
SSL_CTX *ctx;
diff -uprN openssl-0.9.8e.orig/ssl/t1_ext.c openssl-0.9.8e/ssl/t1_ext.c
--- openssl-0.9.8e.orig/ssl/t1_ext.c 1969-12-31 16:00:00.000000000 -0800
+++ openssl-0.9.8e/ssl/t1_ext.c 2007-03-22 20:23:19.000000000 -0700
@@ -0,0 +1,48 @@
+
+#include <stdio.h>
+#include "ssl_locl.h"
+
+
+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;
+ }
+
+ if(ext_data)
+ {
+ 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;
+ s->tls_extension->length = ext_len;
+ s->tls_extension->data = s->tls_extension + 1;
+ memcpy(s->tls_extension->data, ext_data, ext_len);
+ }
+
+ return 1;
+ }
+
+ return 0;
+}
+
+int SSL_set_hello_extension_cb(SSL *s, int (*cb)(SSL *, TLS_EXTENSION *, void *), void *arg)
+{
+ if(s->version >= TLS1_VERSION)
+ {
+ s->tls_extension_cb = cb;
+ s->tls_extension_cb_arg = arg;
+
+ return 1;
+ }
+
+ return 0;
+}
diff -uprN openssl-0.9.8e.orig/ssl/t1_lib.c openssl-0.9.8e/ssl/t1_lib.c
--- openssl-0.9.8e.orig/ssl/t1_lib.c 2007-01-21 08:07:25.000000000 -0800
+++ openssl-0.9.8e/ssl/t1_lib.c 2007-03-22 20:23:19.000000000 -0700
@@ -97,6 +97,10 @@ int tls1_new(SSL *s)
void tls1_free(SSL *s)
{
+ if(s->tls_extension)
+ {
+ OPENSSL_free(s->tls_extension);
+ }
ssl3_free(s);
}
diff -uprN openssl-0.9.8e.orig/ssl/tls1.h openssl-0.9.8e/ssl/tls1.h
--- openssl-0.9.8e.orig/ssl/tls1.h 2006-06-14 10:52:01.000000000 -0700
+++ openssl-0.9.8e/ssl/tls1.h 2007-03-22 20:23:19.000000000 -0700
@@ -296,6 +296,14 @@ extern "C" {
#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 -uprN openssl-0.9.8e.orig/util/ssleay.num openssl-0.9.8e/util/ssleay.num
--- openssl-0.9.8e.orig/util/ssleay.num 2006-11-30 05:04:43.000000000 -0800
+++ openssl-0.9.8e/util/ssleay.num 2007-03-22 20:24:07.000000000 -0700
@@ -238,3 +238,6 @@ SSL_CTX_set_info_callback
SSL_CTX_sess_get_new_cb 287 EXIST::FUNCTION:
SSL_CTX_get_client_cert_cb 288 EXIST::FUNCTION:
SSL_CTX_sess_get_remove_cb 289 EXIST::FUNCTION:
+SSL_set_hello_extension 290 EXIST::FUNCTION:
+SSL_set_hello_extension_cb 291 EXIST::FUNCTION:
+SSL_set_session_secret_cb 292 EXIST::FUNCTION:

330
patches/openssl-0.9.8g-tls-extensions.patch
View file

@ -1,330 +0,0 @@
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

344
patches/openssl-0.9.8h-tls-extensions.patch
View file

@ -1,344 +0,0 @@
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 0.9.8h 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-0.9.8h.orig/ssl/s3_clnt.c openssl-0.9.8h/ssl/s3_clnt.c
--- openssl-0.9.8h.orig/ssl/s3_clnt.c 2008-05-28 10:29:27.000000000 +0300
+++ openssl-0.9.8h/ssl/s3_clnt.c 2008-05-29 10:44:25.000000000 +0300
@@ -752,6 +752,20 @@ 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)
{
@@ -2693,11 +2707,8 @@ static int ssl3_check_finished(SSL *s)
{
int ok;
long n;
- /* If we have no ticket or session ID is non-zero length (a match of
- * a non-zero session length would never reach here) it cannot be a
- * resumed session.
- */
- if (!s->session->tlsext_tick || s->session->session_id_length)
+ /* If we have no ticket it cannot be a resumed session. */
+ if (!s->session->tlsext_tick)
return 1;
/* this function is called when we really expect a Certificate
* message, so permit appropriate message length */
diff -upr openssl-0.9.8h.orig/ssl/s3_srvr.c openssl-0.9.8h/ssl/s3_srvr.c
--- openssl-0.9.8h.orig/ssl/s3_srvr.c 2008-04-30 19:11:32.000000000 +0300
+++ openssl-0.9.8h/ssl/s3_srvr.c 2008-05-28 18:49:34.000000000 +0300
@@ -959,6 +959,59 @@ 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
@@ -1097,16 +1150,22 @@ 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-0.9.8h.orig/ssl/ssl.h openssl-0.9.8h/ssl/ssl.h
--- openssl-0.9.8h.orig/ssl/ssl.h 2008-04-30 19:11:32.000000000 +0300
+++ openssl-0.9.8h/ssl/ssl.h 2008-05-28 18:49:34.000000000 +0300
@@ -343,6 +343,7 @@ 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
@@ -364,6 +365,8 @@ 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
{
@@ -1027,6 +1030,14 @@ 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
@@ -1625,6 +1636,12 @@ 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.
@@ -1815,6 +1832,7 @@ 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-0.9.8h.orig/ssl/ssl_err.c openssl-0.9.8h/ssl/ssl_err.c
--- openssl-0.9.8h.orig/ssl/ssl_err.c 2007-10-12 03:00:30.000000000 +0300
+++ openssl-0.9.8h/ssl/ssl_err.c 2008-05-28 18:49:34.000000000 +0300
@@ -251,6 +251,7 @@ 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-0.9.8h.orig/ssl/ssl_sess.c openssl-0.9.8h/ssl/ssl_sess.c
--- openssl-0.9.8h.orig/ssl/ssl_sess.c 2007-10-17 20:30:15.000000000 +0300
+++ openssl-0.9.8h/ssl/ssl_sess.c 2008-05-28 18:49:34.000000000 +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-0.9.8h.orig/ssl/t1_lib.c openssl-0.9.8h/ssl/t1_lib.c
--- openssl-0.9.8h.orig/ssl/t1_lib.c 2008-05-28 10:26:33.000000000 +0300
+++ openssl-0.9.8h/ssl/t1_lib.c 2008-05-28 18:49:34.000000000 +0300
@@ -106,6 +106,12 @@ 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);
}
@@ -175,8 +181,24 @@ 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
*/
@@ -190,6 +212,7 @@ unsigned char *ssl_add_clienthello_tlsex
ret += ticklen;
}
}
+ skip_ext:
if (s->tlsext_status_type == TLSEXT_STATUSTYPE_ocsp)
{
@@ -774,6 +797,8 @@ 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-0.9.8h.orig/ssl/tls1.h openssl-0.9.8h/ssl/tls1.h
--- openssl-0.9.8h.orig/ssl/tls1.h 2008-04-30 19:11:33.000000000 +0300
+++ openssl-0.9.8h/ssl/tls1.h 2008-05-28 18:49:34.000000000 +0300
@@ -398,6 +398,14 @@ SSL_CTX_callback_ctrl(ssl,SSL_CTRL_SET_T
#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-0.9.8h.orig/util/ssleay.num openssl-0.9.8h/util/ssleay.num
--- openssl-0.9.8h.orig/util/ssleay.num 2007-08-13 01:31:16.000000000 +0300
+++ openssl-0.9.8h/util/ssleay.num 2008-05-28 18:49:34.000000000 +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

404
patches/openssl-0.9.8i-tls-extensions.patch
View file

@ -1,404 +0,0 @@
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 0.9.8i does not enable TLS extension support by default, so it
will need to be enabled by adding enable-tlsext to config script
command line.
Index: openssl-0.9.8i/ssl/s3_clnt.c
===================================================================
--- openssl-0.9.8i.orig/ssl/s3_clnt.c 2008-06-16 19:56:41.000000000 +0300
+++ openssl-0.9.8i/ssl/s3_clnt.c 2008-11-23 20:39:40.000000000 +0200
@@ -759,6 +759,21 @@
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)
{
@@ -2701,11 +2716,8 @@
{
int ok;
long n;
- /* If we have no ticket or session ID is non-zero length (a match of
- * a non-zero session length would never reach here) it cannot be a
- * resumed session.
- */
- if (!s->session->tlsext_tick || s->session->session_id_length)
+ /* If we have no ticket it cannot be a resumed session. */
+ if (!s->session->tlsext_tick)
return 1;
/* this function is called when we really expect a Certificate
* message, so permit appropriate message length */
Index: openssl-0.9.8i/ssl/s3_srvr.c
===================================================================
--- openssl-0.9.8i.orig/ssl/s3_srvr.c 2008-09-14 21:16:09.000000000 +0300
+++ openssl-0.9.8i/ssl/s3_srvr.c 2008-11-23 20:37:40.000000000 +0200
@@ -959,6 +959,59 @@
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
@@ -1097,16 +1150,22 @@
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]);
Index: openssl-0.9.8i/ssl/ssl_err.c
===================================================================
--- openssl-0.9.8i.orig/ssl/ssl_err.c 2008-08-13 22:44:44.000000000 +0300
+++ openssl-0.9.8i/ssl/ssl_err.c 2008-11-23 20:33:43.000000000 +0200
@@ -253,6 +253,7 @@
{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_SESSION_TICKET_EXT), "SSL_set_session_ticket_ext"},
{0,NULL}
};
Index: openssl-0.9.8i/ssl/ssl.h
===================================================================
--- openssl-0.9.8i.orig/ssl/ssl.h 2008-08-13 22:44:44.000000000 +0300
+++ openssl-0.9.8i/ssl/ssl.h 2008-11-23 20:35:41.000000000 +0200
@@ -344,6 +344,7 @@
* 'struct ssl_st *' function parameters used to prototype callbacks
* in SSL_CTX. */
typedef struct ssl_st *ssl_crock_st;
+typedef struct tls_session_ticket_ext_st TLS_SESSION_TICKET_EXT;
/* used to hold info on the particular ciphers used */
typedef struct ssl_cipher_st
@@ -362,6 +363,9 @@
DECLARE_STACK_OF(SSL_CIPHER)
+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);
+
/* Used to hold functions for SSLv2 or SSLv3/TLSv1 functions */
typedef struct ssl_method_st
{
@@ -1034,6 +1038,18 @@
/* RFC4507 session ticket expected to be received or sent */
int tlsext_ticket_expected;
+
+ /* TLS Session Ticket extension override */
+ TLS_SESSION_TICKET_EXT *tlsext_session_ticket;
+
+ /* TLS Session Ticket extension callback */
+ tls_session_ticket_ext_cb_fn tls_session_ticket_ext_cb;
+ void *tls_session_ticket_ext_cb_arg;
+
+ /* 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
@@ -1632,6 +1648,15 @@
int SSL_COMP_add_compression_method(int id,void *cm);
#endif
+/* TLS extensions functions */
+int SSL_set_session_ticket_ext(SSL *s, void *ext_data, int ext_len);
+
+int SSL_set_session_ticket_ext_cb(SSL *s, tls_session_ticket_ext_cb_fn cb,
+ void *arg);
+
+/* 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.
@@ -1824,6 +1849,7 @@
#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_SESSION_TICKET_EXT 213
/* Reason codes. */
#define SSL_R_APP_DATA_IN_HANDSHAKE 100
Index: openssl-0.9.8i/ssl/ssl_sess.c
===================================================================
--- openssl-0.9.8i.orig/ssl/ssl_sess.c 2008-06-04 21:35:27.000000000 +0300
+++ openssl-0.9.8i/ssl/ssl_sess.c 2008-11-23 20:32:24.000000000 +0200
@@ -707,6 +707,61 @@
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_session_ticket_ext_cb(SSL *s, tls_session_ticket_ext_cb_fn cb,
+ void *arg)
+ {
+ if (s == NULL) return(0);
+ s->tls_session_ticket_ext_cb = cb;
+ s->tls_session_ticket_ext_cb_arg = arg;
+ return(1);
+ }
+
+int SSL_set_session_ticket_ext(SSL *s, void *ext_data, int ext_len)
+ {
+ if (s->version >= TLS1_VERSION)
+ {
+ if (s->tlsext_session_ticket)
+ {
+ OPENSSL_free(s->tlsext_session_ticket);
+ s->tlsext_session_ticket = NULL;
+ }
+
+ s->tlsext_session_ticket = OPENSSL_malloc(sizeof(TLS_SESSION_TICKET_EXT) + ext_len);
+ if (!s->tlsext_session_ticket)
+ {
+ SSLerr(SSL_F_SSL_SET_SESSION_TICKET_EXT, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+
+ if (ext_data)
+ {
+ s->tlsext_session_ticket->length = ext_len;
+ s->tlsext_session_ticket->data = s->tlsext_session_ticket + 1;
+ memcpy(s->tlsext_session_ticket->data, ext_data, ext_len);
+ }
+ else
+ {
+ s->tlsext_session_ticket->length = 0;
+ s->tlsext_session_ticket->data = NULL;
+ }
+
+ return 1;
+ }
+
+ return 0;
+ }
+#endif /* OPENSSL_NO_TLSEXT */
+
typedef struct timeout_param_st
{
SSL_CTX *ctx;
Index: openssl-0.9.8i/ssl/t1_lib.c
===================================================================
--- openssl-0.9.8i.orig/ssl/t1_lib.c 2008-09-04 01:13:04.000000000 +0300
+++ openssl-0.9.8i/ssl/t1_lib.c 2008-11-23 20:31:20.000000000 +0200
@@ -106,6 +106,12 @@
void tls1_free(SSL *s)
{
+#ifndef OPENSSL_NO_TLSEXT
+ if (s->tlsext_session_ticket)
+ {
+ OPENSSL_free(s->tlsext_session_ticket);
+ }
+#endif
ssl3_free(s);
}
@@ -175,8 +181,23 @@
int ticklen;
if (s->session && s->session->tlsext_tick)
ticklen = s->session->tlsext_ticklen;
+ else if (s->session && s->tlsext_session_ticket &&
+ s->tlsext_session_ticket->data)
+ {
+ ticklen = s->tlsext_session_ticket->length;
+ s->session->tlsext_tick = OPENSSL_malloc(ticklen);
+ if (!s->session->tlsext_tick)
+ return NULL;
+ memcpy(s->session->tlsext_tick,
+ s->tlsext_session_ticket->data,
+ ticklen);
+ s->session->tlsext_ticklen = ticklen;
+ }
else
ticklen = 0;
+ if (ticklen == 0 && s->tlsext_session_ticket &&
+ s->tlsext_session_ticket->data == NULL)
+ goto skip_ext;
/* Check for enough room 2 for extension type, 2 for len
* rest for ticket
*/
@@ -190,6 +211,7 @@
ret += ticklen;
}
}
+ skip_ext:
if (s->tlsext_status_type == TLSEXT_STATUSTYPE_ocsp)
{
@@ -407,6 +429,15 @@
}
}
+ else if (type == TLSEXT_TYPE_session_ticket)
+ {
+ if (s->tls_session_ticket_ext_cb &&
+ !s->tls_session_ticket_ext_cb(s, data, size, s->tls_session_ticket_ext_cb_arg))
+ {
+ *al = TLS1_AD_INTERNAL_ERROR;
+ return 0;
+ }
+ }
else if (type == TLSEXT_TYPE_status_request
&& s->ctx->tlsext_status_cb)
{
@@ -553,6 +584,12 @@
}
else if (type == TLSEXT_TYPE_session_ticket)
{
+ if (s->tls_session_ticket_ext_cb &&
+ !s->tls_session_ticket_ext_cb(s, data, size, s->tls_session_ticket_ext_cb_arg))
+ {
+ *al = TLS1_AD_INTERNAL_ERROR;
+ return 0;
+ }
if ((SSL_get_options(s) & SSL_OP_NO_TICKET)
|| (size > 0))
{
@@ -776,6 +813,15 @@
s->tlsext_ticket_expected = 1;
return 0; /* Cache miss */
}
+ if (s->tls_session_secret_cb)
+ {
+ /* Indicate cache miss here and instead of
+ * generating the session from ticket now,
+ * trigger abbreviated handshake based on
+ * external mechanism to calculate the master
+ * secret later. */
+ return 0;
+ }
return tls_decrypt_ticket(s, p, size, session_id, len,
ret);
}
Index: openssl-0.9.8i/ssl/tls1.h
===================================================================
--- openssl-0.9.8i.orig/ssl/tls1.h 2008-04-30 19:11:33.000000000 +0300
+++ openssl-0.9.8i/ssl/tls1.h 2008-11-23 20:22:38.000000000 +0200
@@ -398,6 +398,13 @@
#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_session_ticket_ext_st
+ {
+ unsigned short length;
+ void *data;
+ };
+
#ifdef __cplusplus
}
#endif
Index: openssl-0.9.8i/util/ssleay.num
===================================================================
--- openssl-0.9.8i.orig/util/ssleay.num 2008-06-05 13:57:21.000000000 +0300
+++ openssl-0.9.8i/util/ssleay.num 2008-11-23 20:22:05.000000000 +0200
@@ -242,3 +242,5 @@
SSL_get_servername 291 EXIST::FUNCTION:TLSEXT
SSL_get_servername_type 292 EXIST::FUNCTION:TLSEXT
SSL_CTX_set_client_cert_engine 293 EXIST::FUNCTION:ENGINE
+SSL_set_session_ticket_ext 306 EXIST::FUNCTION:TLSEXT
+SSL_set_session_secret_cb 307 EXIST::FUNCTION:TLSEXT

74
patches/openssl-0.9.8x-tls-extensions.patch → patches/openssl-0.9.8za-tls-extensions.patch
View file

@ -4,15 +4,15 @@ 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 0.9.8x does not enable TLS extension support by default, so it
OpenSSL 0.9.8za 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-0.9.8x.orig/ssl/s3_clnt.c openssl-0.9.8x/ssl/s3_clnt.c
--- openssl-0.9.8x.orig/ssl/s3_clnt.c 2011-12-26 21:38:28.000000000 +0200
+++ openssl-0.9.8x/ssl/s3_clnt.c 2012-07-07 10:46:31.501140621 +0300
@@ -757,6 +757,21 @@ int ssl3_get_server_hello(SSL *s)
diff -upr openssl-0.9.8za.orig/ssl/s3_clnt.c openssl-0.9.8za/ssl/s3_clnt.c
--- openssl-0.9.8za.orig/ssl/s3_clnt.c 2014-06-05 11:09:26.000000000 +0300
+++ openssl-0.9.8za/ssl/s3_clnt.c 2014-06-05 20:37:09.221387312 +0300
@@ -767,6 +767,21 @@ int ssl3_get_server_hello(SSL *s)
goto f_err;
}
@ -34,7 +34,7 @@ diff -upr openssl-0.9.8x.orig/ssl/s3_clnt.c openssl-0.9.8x/ssl/s3_clnt.c
if (j != 0 && j == s->session->session_id_length
&& memcmp(p,s->session->session_id,j) == 0)
{
@@ -2725,11 +2740,8 @@ int ssl3_check_finished(SSL *s)
@@ -2745,11 +2760,8 @@ int ssl3_check_finished(SSL *s)
{
int ok;
long n;
@ -48,10 +48,10 @@ diff -upr openssl-0.9.8x.orig/ssl/s3_clnt.c openssl-0.9.8x/ssl/s3_clnt.c
return 1;
/* this function is called when we really expect a Certificate
* message, so permit appropriate message length */
diff -upr openssl-0.9.8x.orig/ssl/s3_srvr.c openssl-0.9.8x/ssl/s3_srvr.c
--- openssl-0.9.8x.orig/ssl/s3_srvr.c 2012-02-16 17:21:17.000000000 +0200
+++ openssl-0.9.8x/ssl/s3_srvr.c 2012-07-07 10:46:31.501140621 +0300
@@ -1009,6 +1009,59 @@ int ssl3_get_client_hello(SSL *s)
diff -upr openssl-0.9.8za.orig/ssl/s3_srvr.c openssl-0.9.8za/ssl/s3_srvr.c
--- openssl-0.9.8za.orig/ssl/s3_srvr.c 2014-06-05 11:09:26.000000000 +0300
+++ openssl-0.9.8za/ssl/s3_srvr.c 2014-06-05 20:37:09.225387312 +0300
@@ -1011,6 +1011,59 @@ int ssl3_get_client_hello(SSL *s)
SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,SSL_R_CLIENTHELLO_TLSEXT);
goto err;
}
@ -111,7 +111,7 @@ diff -upr openssl-0.9.8x.orig/ssl/s3_srvr.c openssl-0.9.8x/ssl/s3_srvr.c
#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
@@ -1147,16 +1200,22 @@ int ssl3_send_server_hello(SSL *s)
@@ -1161,16 +1214,22 @@ int ssl3_send_server_hello(SSL *s)
unsigned char *buf;
unsigned char *p,*d;
int i,sl;
@ -135,10 +135,10 @@ diff -upr openssl-0.9.8x.orig/ssl/s3_srvr.c openssl-0.9.8x/ssl/s3_srvr.c
/* Do the message type and length last */
d=p= &(buf[4]);
diff -upr openssl-0.9.8x.orig/ssl/ssl_err.c openssl-0.9.8x/ssl/ssl_err.c
--- openssl-0.9.8x.orig/ssl/ssl_err.c 2012-03-12 16:50:55.000000000 +0200
+++ openssl-0.9.8x/ssl/ssl_err.c 2012-07-07 10:46:31.501140621 +0300
@@ -264,6 +264,7 @@ static ERR_STRING_DATA SSL_str_functs[]=
diff -upr openssl-0.9.8za.orig/ssl/ssl_err.c openssl-0.9.8za/ssl/ssl_err.c
--- openssl-0.9.8za.orig/ssl/ssl_err.c 2014-06-05 11:09:08.000000000 +0300
+++ openssl-0.9.8za/ssl/ssl_err.c 2014-06-05 20:37:09.225387312 +0300
@@ -265,6 +265,7 @@ 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"},
@ -146,9 +146,9 @@ diff -upr openssl-0.9.8x.orig/ssl/ssl_err.c openssl-0.9.8x/ssl/ssl_err.c
{0,NULL}
};
diff -upr openssl-0.9.8x.orig/ssl/ssl.h openssl-0.9.8x/ssl/ssl.h
--- openssl-0.9.8x.orig/ssl/ssl.h 2012-03-12 16:50:55.000000000 +0200
+++ openssl-0.9.8x/ssl/ssl.h 2012-07-07 10:46:31.501140621 +0300
diff -upr openssl-0.9.8za.orig/ssl/ssl.h openssl-0.9.8za/ssl/ssl.h
--- openssl-0.9.8za.orig/ssl/ssl.h 2014-06-05 11:09:08.000000000 +0300
+++ openssl-0.9.8za/ssl/ssl.h 2014-06-05 20:37:09.229387312 +0300
@@ -344,6 +344,7 @@ extern "C" {
* 'struct ssl_st *' function parameters used to prototype callbacks
* in SSL_CTX. */
@ -167,7 +167,7 @@ diff -upr openssl-0.9.8x.orig/ssl/ssl.h openssl-0.9.8x/ssl/ssl.h
/* Used to hold functions for SSLv2 or SSLv3/TLSv1 functions */
typedef struct ssl_method_st
{
@@ -1050,6 +1054,18 @@ struct ssl_st
@@ -1053,6 +1057,18 @@ struct ssl_st
/* RFC4507 session ticket expected to be received or sent */
int tlsext_ticket_expected;
@ -186,7 +186,7 @@ diff -upr openssl-0.9.8x.orig/ssl/ssl.h openssl-0.9.8x/ssl/ssl.h
SSL_CTX * initial_ctx; /* initial ctx, used to store sessions */
#define session_ctx initial_ctx
#else
@@ -1663,6 +1679,15 @@ void *SSL_COMP_get_compression_methods(v
@@ -1668,6 +1684,15 @@ void *SSL_COMP_get_compression_methods(v
int SSL_COMP_add_compression_method(int id,void *cm);
#endif
@ -202,7 +202,7 @@ diff -upr openssl-0.9.8x.orig/ssl/ssl.h openssl-0.9.8x/ssl/ssl.h
/* 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.
@@ -1866,6 +1891,7 @@ void ERR_load_SSL_strings(void);
@@ -1872,6 +1897,7 @@ 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
@ -210,9 +210,9 @@ diff -upr openssl-0.9.8x.orig/ssl/ssl.h openssl-0.9.8x/ssl/ssl.h
/* Reason codes. */
#define SSL_R_APP_DATA_IN_HANDSHAKE 100
diff -upr openssl-0.9.8x.orig/ssl/ssl_sess.c openssl-0.9.8x/ssl/ssl_sess.c
--- openssl-0.9.8x.orig/ssl/ssl_sess.c 2010-02-01 18:48:40.000000000 +0200
+++ openssl-0.9.8x/ssl/ssl_sess.c 2012-07-07 10:46:31.501140621 +0300
diff -upr openssl-0.9.8za.orig/ssl/ssl_sess.c openssl-0.9.8za/ssl/ssl_sess.c
--- openssl-0.9.8za.orig/ssl/ssl_sess.c 2014-06-05 11:09:08.000000000 +0300
+++ openssl-0.9.8za/ssl/ssl_sess.c 2014-06-05 20:37:09.229387312 +0300
@@ -712,6 +712,61 @@ long SSL_CTX_get_timeout(const SSL_CTX *
return(s->session_timeout);
}
@ -275,9 +275,9 @@ diff -upr openssl-0.9.8x.orig/ssl/ssl_sess.c openssl-0.9.8x/ssl/ssl_sess.c
typedef struct timeout_param_st
{
SSL_CTX *ctx;
diff -upr openssl-0.9.8x.orig/ssl/t1_lib.c openssl-0.9.8x/ssl/t1_lib.c
--- openssl-0.9.8x.orig/ssl/t1_lib.c 2012-01-04 16:25:10.000000000 +0200
+++ openssl-0.9.8x/ssl/t1_lib.c 2012-07-07 10:47:31.153140501 +0300
diff -upr openssl-0.9.8za.orig/ssl/t1_lib.c openssl-0.9.8za/ssl/t1_lib.c
--- openssl-0.9.8za.orig/ssl/t1_lib.c 2014-06-05 11:09:08.000000000 +0300
+++ openssl-0.9.8za/ssl/t1_lib.c 2014-06-05 20:37:09.229387312 +0300
@@ -106,6 +106,12 @@ int tls1_new(SSL *s)
void tls1_free(SSL *s)
@ -323,7 +323,7 @@ diff -upr openssl-0.9.8x.orig/ssl/t1_lib.c openssl-0.9.8x/ssl/t1_lib.c
if (s->tlsext_status_type == TLSEXT_STATUSTYPE_ocsp &&
s->version != DTLS1_VERSION)
@@ -486,6 +508,15 @@ int ssl_parse_clienthello_tlsext(SSL *s,
@@ -574,6 +596,15 @@ int ssl_parse_clienthello_tlsext(SSL *s,
return 0;
renegotiate_seen = 1;
}
@ -339,7 +339,7 @@ diff -upr openssl-0.9.8x.orig/ssl/t1_lib.c openssl-0.9.8x/ssl/t1_lib.c
else if (type == TLSEXT_TYPE_status_request &&
s->version != DTLS1_VERSION && s->ctx->tlsext_status_cb)
{
@@ -663,6 +694,12 @@ int ssl_parse_serverhello_tlsext(SSL *s,
@@ -751,6 +782,12 @@ int ssl_parse_serverhello_tlsext(SSL *s,
}
else if (type == TLSEXT_TYPE_session_ticket)
{
@ -352,7 +352,7 @@ diff -upr openssl-0.9.8x.orig/ssl/t1_lib.c openssl-0.9.8x/ssl/t1_lib.c
if ((SSL_get_options(s) & SSL_OP_NO_TICKET)
|| (size > 0))
{
@@ -920,6 +957,15 @@ int tls1_process_ticket(SSL *s, unsigned
@@ -1043,6 +1080,15 @@ int tls1_process_ticket(SSL *s, unsigned
s->tlsext_ticket_expected = 1;
return 0; /* Cache miss */
}
@ -368,10 +368,10 @@ diff -upr openssl-0.9.8x.orig/ssl/t1_lib.c openssl-0.9.8x/ssl/t1_lib.c
return tls_decrypt_ticket(s, p, size, session_id, len,
ret);
}
diff -upr openssl-0.9.8x.orig/ssl/tls1.h openssl-0.9.8x/ssl/tls1.h
--- openssl-0.9.8x.orig/ssl/tls1.h 2009-11-08 16:51:54.000000000 +0200
+++ openssl-0.9.8x/ssl/tls1.h 2012-07-07 10:46:31.501140621 +0300
@@ -401,6 +401,13 @@ SSL_CTX_callback_ctrl(ssl,SSL_CTRL_SET_T
diff -upr openssl-0.9.8za.orig/ssl/tls1.h openssl-0.9.8za/ssl/tls1.h
--- openssl-0.9.8za.orig/ssl/tls1.h 2014-06-05 11:09:08.000000000 +0300
+++ openssl-0.9.8za/ssl/tls1.h 2014-06-05 20:37:09.229387312 +0300
@@ -415,6 +415,13 @@ SSL_CTX_callback_ctrl(ssl,SSL_CTRL_SET_T
#define TLS_MD_MASTER_SECRET_CONST "\x6d\x61\x73\x74\x65\x72\x20\x73\x65\x63\x72\x65\x74" /*master secret*/
#endif
@ -385,9 +385,9 @@ diff -upr openssl-0.9.8x.orig/ssl/tls1.h openssl-0.9.8x/ssl/tls1.h
#ifdef __cplusplus
}
#endif
diff -upr openssl-0.9.8x.orig/util/ssleay.num openssl-0.9.8x/util/ssleay.num
--- openssl-0.9.8x.orig/util/ssleay.num 2008-06-05 13:57:21.000000000 +0300
+++ openssl-0.9.8x/util/ssleay.num 2012-07-07 10:46:31.505140623 +0300
diff -upr openssl-0.9.8za.orig/util/ssleay.num openssl-0.9.8za/util/ssleay.num
--- openssl-0.9.8za.orig/util/ssleay.num 2014-06-05 12:38:45.000000000 +0300
+++ openssl-0.9.8za/util/ssleay.num 2014-06-05 20:37:09.229387312 +0300
@@ -242,3 +242,5 @@ SSL_set_SSL_CTX
SSL_get_servername 291 EXIST::FUNCTION:TLSEXT
SSL_get_servername_type 292 EXIST::FUNCTION:TLSEXT

374
patches/openssl-0.9.9-session-ticket.patch
View file

@ -1,374 +0,0 @@
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).
NOTE: This patch (without SSL_set_hello_extension() wrapper) was
merged into the upstream OpenSSL 0.9.9 tree and as such, an external
patch for EAP-FAST support is not needed anymore.
Index: openssl-SNAP-20081111/ssl/s3_clnt.c
===================================================================
--- openssl-SNAP-20081111.orig/ssl/s3_clnt.c
+++ openssl-SNAP-20081111/ssl/s3_clnt.c
@@ -788,6 +788,23 @@ 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)
{
@@ -2927,11 +2944,8 @@ static int ssl3_check_finished(SSL *s)
{
int ok;
long n;
- /* If we have no ticket or session ID is non-zero length (a match of
- * a non-zero session length would never reach here) it cannot be a
- * resumed session.
- */
- if (!s->session->tlsext_tick || s->session->session_id_length)
+ /* If we have no ticket it cannot be a resumed session. */
+ if (!s->session->tlsext_tick)
return 1;
/* this function is called when we really expect a Certificate
* message, so permit appropriate message length */
Index: openssl-SNAP-20081111/ssl/s3_srvr.c
===================================================================
--- openssl-SNAP-20081111.orig/ssl/s3_srvr.c
+++ openssl-SNAP-20081111/ssl/s3_srvr.c
@@ -1010,6 +1010,59 @@ 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
@@ -1134,16 +1187,22 @@ 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]);
Index: openssl-SNAP-20081111/ssl/ssl_err.c
===================================================================
--- openssl-SNAP-20081111.orig/ssl/ssl_err.c
+++ openssl-SNAP-20081111/ssl/ssl_err.c
@@ -263,6 +263,7 @@ static ERR_STRING_DATA SSL_str_functs[]=
{ERR_FUNC(SSL_F_TLS1_PRF), "tls1_prf"},
{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_SESSION_TICKET_EXT), "SSL_set_session_ticket_ext"},
{0,NULL}
};
Index: openssl-SNAP-20081111/ssl/ssl.h
===================================================================
--- openssl-SNAP-20081111.orig/ssl/ssl.h
+++ openssl-SNAP-20081111/ssl/ssl.h
@@ -355,6 +355,7 @@ extern "C" {
* 'struct ssl_st *' function parameters used to prototype callbacks
* in SSL_CTX. */
typedef struct ssl_st *ssl_crock_st;
+typedef struct tls_session_ticket_ext_st TLS_SESSION_TICKET_EXT;
/* used to hold info on the particular ciphers used */
typedef struct ssl_cipher_st
@@ -378,6 +379,8 @@ typedef struct ssl_cipher_st
DECLARE_STACK_OF(SSL_CIPHER)
+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
{
@@ -1145,6 +1148,13 @@ struct ssl_st
void *tlsext_opaque_prf_input;
size_t tlsext_opaque_prf_input_len;
+ /* TLS Session Ticket extension override */
+ TLS_SESSION_TICKET_EXT *tlsext_session_ticket;
+
+ /* 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
@@ -1746,6 +1756,16 @@ void *SSL_COMP_get_compression_methods(v
int SSL_COMP_add_compression_method(int id,void *cm);
#endif
+/* NOTE: This function will be removed; it is only here for backwards
+ * compatibility for the API during testing. */
+int SSL_set_hello_extension(SSL *s, int ext_type, void *ext_data, int ext_len);
+
+/* TLS extensions functions */
+int SSL_set_session_ticket_ext(SSL *s, 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.
@@ -1948,6 +1968,7 @@ void ERR_load_SSL_strings(void);
#define SSL_F_TLS1_PRF 284
#define SSL_F_TLS1_SETUP_KEY_BLOCK 211
#define SSL_F_WRITE_PENDING 212
+#define SSL_F_SSL_SET_SESSION_TICKET_EXT 213
/* Reason codes. */
#define SSL_R_APP_DATA_IN_HANDSHAKE 100
Index: openssl-SNAP-20081111/ssl/ssl_sess.c
===================================================================
--- openssl-SNAP-20081111.orig/ssl/ssl_sess.c
+++ openssl-SNAP-20081111/ssl/ssl_sess.c
@@ -834,6 +834,62 @@ 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_session_ticket_ext(SSL *s, void *ext_data, int ext_len)
+ {
+ if (s->version >= TLS1_VERSION)
+ {
+ if (s->tlsext_session_ticket)
+ {
+ OPENSSL_free(s->tlsext_session_ticket);
+ s->tlsext_session_ticket = NULL;
+ }
+
+ s->tlsext_session_ticket = OPENSSL_malloc(sizeof(TLS_SESSION_TICKET_EXT) + ext_len);
+ if (!s->tlsext_session_ticket)
+ {
+ SSLerr(SSL_F_SSL_SET_SESSION_TICKET_EXT, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+
+ if (ext_data)
+ {
+ s->tlsext_session_ticket->length = ext_len;
+ s->tlsext_session_ticket->data = s->tlsext_session_ticket + 1;
+ memcpy(s->tlsext_session_ticket->data, ext_data, ext_len);
+ }
+ else
+ {
+ s->tlsext_session_ticket->length = 0;
+ s->tlsext_session_ticket->data = NULL;
+ }
+
+ return 1;
+ }
+
+ return 0;
+ }
+
+/* NOTE: This function will be removed; it is only here for backwards
+ * compatibility for the API during testing. */
+int SSL_set_hello_extension(SSL *s, int ext_type, void *ext_data, int ext_len)
+ {
+ if (ext_type != TLSEXT_TYPE_session_ticket)
+ return 0;
+
+ return SSL_set_session_ticket_ext(s, ext_data, ext_len);
+ }
+#endif /* OPENSSL_NO_TLSEXT */
+
typedef struct timeout_param_st
{
SSL_CTX *ctx;
Index: openssl-SNAP-20081111/ssl/t1_lib.c
===================================================================
--- openssl-SNAP-20081111.orig/ssl/t1_lib.c
+++ openssl-SNAP-20081111/ssl/t1_lib.c
@@ -154,6 +154,12 @@ int tls1_new(SSL *s)
void tls1_free(SSL *s)
{
+#ifndef OPENSSL_NO_TLSEXT
+ if (s->tlsext_session_ticket)
+ {
+ OPENSSL_free(s->tlsext_session_ticket);
+ }
+#endif /* OPENSSL_NO_TLSEXT */
ssl3_free(s);
}
@@ -357,8 +363,23 @@ 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->tlsext_session_ticket &&
+ s->tlsext_session_ticket->data)
+ {
+ ticklen = s->tlsext_session_ticket->length;
+ s->session->tlsext_tick = OPENSSL_malloc(ticklen);
+ if (!s->session->tlsext_tick)
+ return NULL;
+ memcpy(s->session->tlsext_tick,
+ s->tlsext_session_ticket->data,
+ ticklen);
+ s->session->tlsext_ticklen = ticklen;
+ }
else
ticklen = 0;
+ if (ticklen == 0 && s->tlsext_session_ticket &&
+ s->tlsext_session_ticket->data == NULL)
+ goto skip_ext;
/* Check for enough room 2 for extension type, 2 for len
* rest for ticket
*/
@@ -371,6 +392,7 @@ unsigned char *ssl_add_clienthello_tlsex
ret += ticklen;
}
}
+ skip_ext:
#ifdef TLSEXT_TYPE_opaque_prf_input
if (s->s3->client_opaque_prf_input != NULL)
@@ -1435,6 +1457,15 @@ int tls1_process_ticket(SSL *s, unsigned
s->tlsext_ticket_expected = 1;
return 0; /* Cache miss */
}
+ if (s->tls_session_secret_cb)
+ {
+ /* Indicate cache miss here and instead of
+ * generating the session from ticket now,
+ * trigger abbreviated handshake based on
+ * external mechanism to calculate the master
+ * secret later. */
+ return 0;
+ }
return tls_decrypt_ticket(s, p, size, session_id, len,
ret);
}
Index: openssl-SNAP-20081111/ssl/tls1.h
===================================================================
--- openssl-SNAP-20081111.orig/ssl/tls1.h
+++ openssl-SNAP-20081111/ssl/tls1.h
@@ -512,6 +512,13 @@ SSL_CTX_callback_ctrl(ssl,SSL_CTRL_SET_T
#define TLS_MD_MASTER_SECRET_CONST "\x6d\x61\x73\x74\x65\x72\x20\x73\x65\x63\x72\x65\x74" /*master secret*/
#endif
+/* TLS Session Ticket extension struct */
+struct tls_session_ticket_ext_st
+ {
+ unsigned short length;
+ void *data;
+ };
+
#ifdef __cplusplus
}
#endif
Index: openssl-SNAP-20081111/util/ssleay.num
===================================================================
--- openssl-SNAP-20081111.orig/util/ssleay.num
+++ openssl-SNAP-20081111/util/ssleay.num
@@ -254,3 +254,5 @@ PEM_read_bio_SSL_SESSION
SSL_CTX_set_psk_server_callback 303 EXIST::FUNCTION:PSK
SSL_get_psk_identity 304 EXIST::FUNCTION:PSK
PEM_write_SSL_SESSION 305 EXIST:!WIN16:FUNCTION:
+SSL_set_session_ticket_ext 306 EXIST::FUNCTION:TLSEXT
+SSL_set_session_secret_cb 307 EXIST::FUNCTION:TLSEXT