Change default policy to prohibit DTLS to minimize surprise.

Allow applications to send arbirary alert messages.

Add a new optional parameter to Channel which specifies how large to
make the IO buffers by default.

Add Channel::reset_state, and reset the IO buffers and cipher specs
after a fatal alert.

1 files changed, 2 insertions, 0 deletions

diff --git a/src/tls/tls_policy.h b/src/tls/tls_policy.h
index f80bffb71..6cc41fc50 100644
--- a/src/tls/tls_policy.h
+++ b/src/tls/tls_policy.h
@@ -122,6 +122,8 @@ class BOTAN_DLL Policy
 
       /**
       * @return true if and only if we are willing to accept this version
+      * Default accepts only TLS, so override if you want to enable DTLS
+      * in your application.
       */
       virtual bool acceptable_protocol_version(Protocol_Version version) const;