ChannelID support.

Implement ChannelID as both a client and server.
diff --git a/ssl/ssl_asn1.c b/ssl/ssl_asn1.c
index 45fad03..36e4579 100644
--- a/ssl/ssl_asn1.c
+++ b/ssl/ssl_asn1.c
@@ -122,12 +122,13 @@
 	ASN1_OCTET_STRING psk_identity;
 #endif /* OPENSSL_NO_PSK */
 	ASN1_OCTET_STRING peer_sha256;
+	ASN1_OCTET_STRING original_handshake_hash;
 	} SSL_SESSION_ASN1;
 
 int i2d_SSL_SESSION(SSL_SESSION *in, unsigned char **pp)
 	{
 #define LSIZE2 (sizeof(long)*2)
-	int v1=0,v2=0,v3=0,v4=0,v5=0,v7=0,v8=0,v13=0;
+	int v1=0,v2=0,v3=0,v4=0,v5=0,v7=0,v8=0,v13=0,v14=0;
 	unsigned char buf[4],ibuf1[LSIZE2],ibuf2[LSIZE2];
 	unsigned char ibuf3[LSIZE2],ibuf4[LSIZE2],ibuf5[LSIZE2];
 #ifndef OPENSSL_NO_TLSEXT
@@ -259,6 +260,13 @@
 		a.peer_sha256.type = V_ASN1_OCTET_STRING;
 		a.peer_sha256.data = in->peer_sha256;
 		}
+
+	if (in->original_handshake_hash_len > 0)
+		{
+		a.original_handshake_hash.length = in->original_handshake_hash_len;
+		a.original_handshake_hash.type = V_ASN1_OCTET_STRING;
+		a.original_handshake_hash.data = in->original_handshake_hash;
+		}
 #endif /* OPENSSL_NO_PSK */
 
 	M_ASN1_I2D_len(&(a.version),		i2d_ASN1_INTEGER);
@@ -294,6 +302,8 @@
 #endif /* OPENSSL_NO_PSK */
 	if (in->peer_sha256_valid)
 		M_ASN1_I2D_len_EXP_opt(&(a.peer_sha256),i2d_ASN1_OCTET_STRING,13,v13);
+	if (in->original_handshake_hash_len > 0)
+		M_ASN1_I2D_len_EXP_opt(&(a.original_handshake_hash),i2d_ASN1_OCTET_STRING,14,v14);
 
 	M_ASN1_I2D_seq_total();
 
@@ -332,6 +342,9 @@
 #endif /* OPENSSL_NO_TLSEXT */
 	if (in->peer_sha256_valid)
 		M_ASN1_I2D_put_EXP_opt(&(a.peer_sha256),i2d_ASN1_OCTET_STRING,13,v13);
+	if (in->original_handshake_hash_len > 0)
+		M_ASN1_I2D_put_EXP_opt(&(a.original_handshake_hash),i2d_ASN1_OCTET_STRING,14,v14);
+
 	M_ASN1_I2D_finish();
 	}
 
@@ -564,5 +577,16 @@
 		os.data = NULL;
 		}
 
+	os.length=0;
+	os.data=NULL;
+	M_ASN1_D2I_get_EXP_opt(osp,d2i_ASN1_OCTET_STRING,14);
+	if (os.data && os.length < (int)sizeof(ret->original_handshake_hash))
+		{
+		memcpy(ret->original_handshake_hash, os.data, os.length);
+		ret->original_handshake_hash_len = os.length;
+		OPENSSL_free(os.data);
+		os.data = NULL;
+		}
+
 	M_ASN1_D2I_Finish(a,SSL_SESSION_free,SSL_F_D2I_SSL_SESSION);
 	}