Declare ECDSA key exchange and ciphersuites

Also fix bug in ssl_list_ciphersuites().

For now, disable it on server.
Client will offer it but fail if server selects it.
diff --git a/include/polarssl/config.h b/include/polarssl/config.h
index 5aee165..0db1cd0 100644
--- a/include/polarssl/config.h
+++ b/include/polarssl/config.h
@@ -364,6 +364,28 @@
 #define POLARSSL_KEY_EXCHANGE_ECDHE_RSA_ENABLED
 
 /**
+ * \def POLARSSL_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED
+ *
+ * Enable the ECDHE-ECDSA based ciphersuite modes in SSL / TLS
+ *
+ * Requires: POLARSSL_ECDH_C, POLARSSL_ECDSA_C, POLARSSL_X509_PARSE_C
+ *
+ * This enables the following ciphersuites (if other requisites are
+ * enabled as well):
+ *      TLS_ECDHE_ECDSA_WITH_RC4_128_SHA,
+ *      TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA,
+ *      TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA,
+ *      TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA,
+ *      TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256,
+ *      TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384,
+ *      TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,
+ *      TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,
+ *      TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256,
+ *      TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384,
+ */
+#define POLARSSL_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED
+
+/**
  * \def POLARSSL_ERROR_STRERROR_BC
  *
  * Make available the backward compatible error_strerror() next to the
@@ -1419,6 +1441,12 @@
 #error "POLARSSL_KEY_EXCHANGE_ECDHE_RSA_ENABLED defined, but not all prerequisites"
 #endif
 
+#if defined(POLARSSL_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED) &&                 \
+    ( !defined(POLARSSL_ECDH_C) || !defined(POLARSSL_ECDSA_C) ||          \
+      !defined(POLARSSL_X509_PARSE_C) )
+#error "POLARSSL_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED defined, but not all prerequisites"
+#endif
+
 #if defined(POLARSSL_KEY_EXCHANGE_RSA_PSK_ENABLED) &&                   \
     ( !defined(POLARSSL_RSA_C) || !defined(POLARSSL_X509_PARSE_C) )
 #error "POLARSSL_KEY_EXCHANGE_RSA_PSK_ENABLED defined, but not all prerequisites"
diff --git a/include/polarssl/ssl_ciphersuites.h b/include/polarssl/ssl_ciphersuites.h
index 8a489b4..714cdcd 100644
--- a/include/polarssl/ssl_ciphersuites.h
+++ b/include/polarssl/ssl_ciphersuites.h
@@ -119,18 +119,33 @@
 #define TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256     0xC0   /**< TLS 1.2 */
 #define TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256 0xC4   /**< TLS 1.2 */
 
+#define TLS_ECDHE_ECDSA_WITH_NULL_SHA            0xC006 /**< Weak! */
+#define TLS_ECDHE_ECDSA_WITH_RC4_128_SHA         0xC007 /**< Not in SSL3! */
+#define TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA    0xC008 /**< Not in SSL3! */
+#define TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA     0xC009 /**< Not in SSL3! */
+#define TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA     0xC00A /**< Not in SSL3! */
+
 #define TLS_ECDHE_RSA_WITH_NULL_SHA              0xC010 /**< Weak! */
 #define TLS_ECDHE_RSA_WITH_RC4_128_SHA           0xC011 /**< Not in SSL3! */
 #define TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA      0xC012 /**< Not in SSL3! */
 #define TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA       0xC013 /**< Not in SSL3! */
 #define TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA       0xC014 /**< Not in SSL3! */
 
+#define TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256  0xC023 /**< TLS 1.2 */
+#define TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384  0xC024 /**< TLS 1.2 */
+
 #define TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256    0xC027 /**< TLS 1.2 */
 #define TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384    0xC028 /**< TLS 1.2 */
 
+#define TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256  0xC02B /**< TLS 1.2 */
+#define TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384  0xC02C /**< TLS 1.2 */
+
 #define TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256    0xC02F /**< TLS 1.2 */
 #define TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384    0xC030 /**< TLS 1.2 */
 
+#define TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256 0xC072 /**< TLS 1.2 */
+#define TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384 0xC073 /**< TLS 1.2 */
+
 #define TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256  0xC076 /**< TLS 1.2 */
 #define TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384  0xC077 /**< TLS 1.2 */
 
@@ -146,6 +161,7 @@
     POLARSSL_KEY_EXCHANGE_RSA,
     POLARSSL_KEY_EXCHANGE_DHE_RSA,
     POLARSSL_KEY_EXCHANGE_ECDHE_RSA,
+    POLARSSL_KEY_EXCHANGE_ECDHE_ECDSA,
     POLARSSL_KEY_EXCHANGE_PSK,
     POLARSSL_KEY_EXCHANGE_DHE_PSK,
     POLARSSL_KEY_EXCHANGE_RSA_PSK,