Update Channel ID API to use a callback.

openssl/ssl/ssl_sess.c

 /* ssl/ssl_sess.c */
 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
  * All rights reserved.
  *
  * This package is an SSL implementation written
  * by Eric Young (eay@cryptsoft.com).
  * The implementation was written so as to conform with Netscapes SSL.
  * 
  * This library is free for commercial and non-commercial use as long as
  * the following conditions are aheared to.  The following conditions
@@ skipping 1114 matching lines @@
         int (*cb)(SSL *ssl, X509 **x509, EVP_PKEY **pkey))
         {
         ctx->client_cert_cb=cb;
         }
 
 int (*SSL_CTX_get_client_cert_cb(SSL_CTX *ctx))(SSL * ssl, X509 ** x509 , EVP_PKEY **pkey)
         {
         return ctx->client_cert_cb;
         }
 
+void SSL_CTX_set_channel_id_cb(SSL_CTX *ctx,
+        void (*cb)(SSL *ssl, EVP_PKEY **pkey))
+        {
+        ctx->channel_id_cb=cb;
+        }
+
+void (*SSL_CTX_get_channel_id_cb(SSL_CTX *ctx))(SSL * ssl, EVP_PKEY **pkey)
+        {
+        return ctx->channel_id_cb;
+        }
+
 #ifndef OPENSSL_NO_ENGINE
 int SSL_CTX_set_client_cert_engine(SSL_CTX *ctx, ENGINE *e)
         {
         if (!ENGINE_init(e))
                 {
                 SSLerr(SSL_F_SSL_CTX_SET_CLIENT_CERT_ENGINE, ERR_R_ENGINE_LIB);
                 return 0;
                 }
         if(!ENGINE_get_ssl_client_cert_function(e))
                 {
@@ skipping 12 matching lines @@
         ctx->app_gen_cookie_cb=cb;
         }
 
 void SSL_CTX_set_cookie_verify_cb(SSL_CTX *ctx,
         int (*cb)(SSL *ssl, unsigned char *cookie, unsigned int cookie_len))
         {
         ctx->app_verify_cookie_cb=cb;
         }
 
 IMPLEMENT_PEM_rw(SSL_SESSION, SSL_SESSION, PEM_STRING_SSL_SESSION, SSL_SESSION)