diff options
Diffstat (limited to 'contrib/wpa/patches/openssl-0.9.8h-tls-extensions.patch')
| -rw-r--r-- | contrib/wpa/patches/openssl-0.9.8h-tls-extensions.patch | 344 |
1 files changed, 344 insertions, 0 deletions
diff --git a/contrib/wpa/patches/openssl-0.9.8h-tls-extensions.patch b/contrib/wpa/patches/openssl-0.9.8h-tls-extensions.patch new file mode 100644 index 0000000..c68f227 --- /dev/null +++ b/contrib/wpa/patches/openssl-0.9.8h-tls-extensions.patch @@ -0,0 +1,344 @@ +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 |
