+++ /dev/null
-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 0.9.8zf 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-0.9.8zf.orig/ssl/s3_clnt.c openssl-0.9.8zf/ssl/s3_clnt.c
---- openssl-0.9.8zf.orig/ssl/s3_clnt.c 2015-03-19 15:46:46.000000000 +0200
-+++ openssl-0.9.8zf/ssl/s3_clnt.c 2015-03-24 16:19:14.043911769 +0200
-@@ -760,6 +760,23 @@ 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);
-+ s->s3->flags |= SSL3_FLAGS_CCS_OK;
-+ }
-+ }
-+#endif /* OPENSSL_NO_TLSEXT */
-+
- if (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
-@@ -2684,12 +2701,8 @@ 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,
-diff -upr openssl-0.9.8zf.orig/ssl/s3_srvr.c openssl-0.9.8zf/ssl/s3_srvr.c
---- openssl-0.9.8zf.orig/ssl/s3_srvr.c 2015-03-19 15:46:46.000000000 +0200
-+++ openssl-0.9.8zf/ssl/s3_srvr.c 2015-03-24 16:23:34.567909681 +0200
-@@ -999,6 +999,59 @@ 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
-@@ -1143,15 +1196,21 @@ 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-0.9.8zf.orig/ssl/ssl_err.c openssl-0.9.8zf/ssl/ssl_err.c
---- openssl-0.9.8zf.orig/ssl/ssl_err.c 2015-03-19 15:46:46.000000000 +0200
-+++ openssl-0.9.8zf/ssl/ssl_err.c 2015-03-24 16:35:58.627903717 +0200
-@@ -316,6 +316,7 @@ 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_SESSION_TICKET_EXT), "SSL_set_session_ticket_ext"},
- {0, NULL}
- };
-
-diff -upr openssl-0.9.8zf.orig/ssl/ssl.h openssl-0.9.8zf/ssl/ssl.h
---- openssl-0.9.8zf.orig/ssl/ssl.h 2015-03-19 15:46:46.000000000 +0200
-+++ openssl-0.9.8zf/ssl/ssl.h 2015-03-24 16:25:44.339908641 +0200
-@@ -349,6 +349,7 @@ extern "C" {
- * 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 {
-@@ -366,6 +367,12 @@ typedef struct ssl_cipher_st {
-
- 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 {
- int version;
-@@ -1116,6 +1123,18 @@ struct ssl_st {
- int tlsext_ocsp_resplen;
- /* 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
-@@ -1772,6 +1791,17 @@ void *SSL_COMP_get_compression_methods(v
- 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
-@@ -1977,6 +2007,7 @@ 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_SESSION_TICKET_EXT 213
-
- /* Reason codes. */
- # define SSL_R_APP_DATA_IN_HANDSHAKE 100
-diff -upr openssl-0.9.8zf.orig/ssl/ssl_sess.c openssl-0.9.8zf/ssl/ssl_sess.c
---- openssl-0.9.8zf.orig/ssl/ssl_sess.c 2015-03-19 15:46:46.000000000 +0200
-+++ openssl-0.9.8zf/ssl/ssl_sess.c 2015-03-24 16:28:04.819907515 +0200
-@@ -716,6 +716,61 @@ 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_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;
- long time;
-diff -upr openssl-0.9.8zf.orig/ssl/t1_lib.c openssl-0.9.8zf/ssl/t1_lib.c
---- openssl-0.9.8zf.orig/ssl/t1_lib.c 2015-03-19 15:46:46.000000000 +0200
-+++ openssl-0.9.8zf/ssl/t1_lib.c 2015-03-24 16:32:46.923905254 +0200
-@@ -108,6 +108,11 @@ 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
- ssl3_free(s);
- }
-
-@@ -206,8 +211,20 @@ unsigned char *ssl_add_clienthello_tlsex
- int ticklen;
- if (!s->new_session && s->session && s->session->tlsext_tick)
- ticklen = s->session->tlsext_ticklen;
-- else
-+ 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
-@@ -221,6 +238,7 @@ unsigned char *ssl_add_clienthello_tlsex
- ret += ticklen;
- }
- }
-+skip_ext:
-
- if (s->tlsext_status_type == TLSEXT_STATUSTYPE_ocsp &&
- s->version != DTLS1_VERSION) {
-@@ -560,6 +578,14 @@ int ssl_parse_clienthello_tlsext(SSL *s,
- if (!ssl_parse_clienthello_renegotiate_ext(s, data, size, al))
- return 0;
- renegotiate_seen = 1;
-+ } 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->version != DTLS1_VERSION && s->ctx->tlsext_status_cb) {
-
-@@ -710,6 +736,13 @@ int ssl_parse_serverhello_tlsext(SSL *s,
- }
- tlsext_servername = 1;
- } 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)) {
- *al = TLS1_AD_UNSUPPORTED_EXTENSION;
-@@ -993,6 +1026,14 @@ 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);
- }
- p += size;
-diff -upr openssl-0.9.8zf.orig/ssl/tls1.h openssl-0.9.8zf/ssl/tls1.h
---- openssl-0.9.8zf.orig/ssl/tls1.h 2015-03-19 15:46:46.000000000 +0200
-+++ openssl-0.9.8zf/ssl/tls1.h 2015-03-24 16:33:31.855904894 +0200
-@@ -460,6 +460,12 @@ 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"
- # endif
-
-+/* TLS extension struct */
-+struct tls_session_ticket_ext_st {
-+ unsigned short length;
-+ void *data;
-+};
-+
- #ifdef __cplusplus
- }
- #endif
-diff -upr openssl-0.9.8zf.orig/util/ssleay.num openssl-0.9.8zf/util/ssleay.num
---- openssl-0.9.8zf.orig/util/ssleay.num 2015-03-19 15:47:15.000000000 +0200
-+++ openssl-0.9.8zf/util/ssleay.num 2015-03-24 16:33:51.127904739 +0200
-@@ -242,3 +242,5 @@ SSL_set_SSL_CTX
- 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
projects / mech_eap.git / blobdiff