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-rw-r--r--src/crypto/tls_openssl.c75
1 files changed, 28 insertions, 47 deletions
diff --git a/src/crypto/tls_openssl.c b/src/crypto/tls_openssl.c
index 8c9ecc5..994c0d5 100644
--- a/src/crypto/tls_openssl.c
+++ b/src/crypto/tls_openssl.c
@@ -3146,9 +3146,19 @@ static int openssl_get_keyblock_size(SSL *ssl)
#endif /* CONFIG_FIPS */
-static int openssl_tls_prf(struct tls_connection *conn,
- const char *label, int server_random_first,
- int skip_keyblock, u8 *out, size_t out_len)
+int tls_connection_export_key(void *tls_ctx, struct tls_connection *conn,
+ const char *label, u8 *out, size_t out_len)
+{
+ if (!conn ||
+ SSL_export_keying_material(conn->ssl, out, out_len, label,
+ os_strlen(label), NULL, 0, 0) != 1)
+ return -1;
+ return 0;
+}
+
+
+int tls_connection_get_eap_fast_key(void *tls_ctx, struct tls_connection *conn,
+ u8 *out, size_t out_len)
{
#ifdef CONFIG_FIPS
wpa_printf(MSG_ERROR, "OpenSSL: TLS keys cannot be exported in FIPS "
@@ -3169,9 +3179,9 @@ static int openssl_tls_prf(struct tls_connection *conn,
const char *ver;
/*
- * TLS library did not support key generation, so get the needed TLS
- * session parameters and use an internal implementation of TLS PRF to
- * derive the key.
+ * TLS library did not support EAP-FAST key generation, so get the
+ * needed TLS session parameters and use an internal implementation of
+ * TLS PRF to derive the key.
*/
if (conn == NULL)
@@ -3184,15 +3194,13 @@ static int openssl_tls_prf(struct tls_connection *conn,
if (!ver || !sess)
return -1;
- if (skip_keyblock) {
- skip = openssl_get_keyblock_size(ssl);
- if (skip < 0)
- return -1;
- tmp_out = os_malloc(skip + out_len);
- if (!tmp_out)
- return -1;
- _out = tmp_out;
- }
+ skip = openssl_get_keyblock_size(ssl);
+ if (skip < 0)
+ return -1;
+ tmp_out = os_malloc(skip + out_len);
+ if (!tmp_out)
+ return -1;
+ _out = tmp_out;
rnd = os_malloc(2 * SSL3_RANDOM_SIZE);
if (!rnd) {
@@ -3205,29 +3213,22 @@ static int openssl_tls_prf(struct tls_connection *conn,
master_key_len = SSL_SESSION_get_master_key(sess, master_key,
sizeof(master_key));
- if (server_random_first) {
- os_memcpy(rnd, server_random, SSL3_RANDOM_SIZE);
- os_memcpy(rnd + SSL3_RANDOM_SIZE, client_random,
- SSL3_RANDOM_SIZE);
- } else {
- os_memcpy(rnd, client_random, SSL3_RANDOM_SIZE);
- os_memcpy(rnd + SSL3_RANDOM_SIZE, server_random,
- SSL3_RANDOM_SIZE);
- }
+ os_memcpy(rnd, server_random, SSL3_RANDOM_SIZE);
+ os_memcpy(rnd + SSL3_RANDOM_SIZE, client_random, SSL3_RANDOM_SIZE);
if (os_strcmp(ver, "TLSv1.2") == 0) {
tls_prf_sha256(master_key, master_key_len,
- label, rnd, 2 * SSL3_RANDOM_SIZE,
+ "key expansion", rnd, 2 * SSL3_RANDOM_SIZE,
_out, skip + out_len);
ret = 0;
} else if (tls_prf_sha1_md5(master_key, master_key_len,
- label, rnd, 2 * SSL3_RANDOM_SIZE,
+ "key expansion", rnd, 2 * SSL3_RANDOM_SIZE,
_out, skip + out_len) == 0) {
ret = 0;
}
os_memset(master_key, 0, sizeof(master_key));
os_free(rnd);
- if (ret == 0 && skip_keyblock)
+ if (ret == 0)
os_memcpy(out, _out + skip, out_len);
bin_clear_free(tmp_out, skip);
@@ -3236,26 +3237,6 @@ static int openssl_tls_prf(struct tls_connection *conn,
}
-int tls_connection_prf(void *tls_ctx, struct tls_connection *conn,
- const char *label, int server_random_first,
- int skip_keyblock, u8 *out, size_t out_len)
-{
- if (conn == NULL)
- return -1;
- if (server_random_first || skip_keyblock)
- return openssl_tls_prf(conn, label,
- server_random_first, skip_keyblock,
- out, out_len);
- if (SSL_export_keying_material(conn->ssl, out, out_len, label,
- os_strlen(label), NULL, 0, 0) == 1) {
- wpa_printf(MSG_DEBUG, "OpenSSL: Using internal PRF");
- return 0;
- }
- return openssl_tls_prf(conn, label, server_random_first,
- skip_keyblock, out, out_len);
-}
-
-
static struct wpabuf *
openssl_handshake(struct tls_connection *conn, const struct wpabuf *in_data,
int server)