--- /dev/null
+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:
projects / mech_eap.orig / blobdiff