tree d63c55b6d4a6433b5318211450242f3661fd0b9c
parent 77c0646ef2523bfab89d65e705be5a9e8defe20c
author Manuel Pégourié-Gonnard <mpg2@elzevir.fr> 1442492190 +0200
committer Manuel Pégourié-Gonnard <mpg2@elzevir.fr> 1442492190 +0200

Cache ClientHello extension

This extension is quite costly to generate, and we don't want to re-do it
again when the server performs a DTLS HelloVerify. So, cache the result the
first time and re-use if/when we build a new ClientHello.

Note: re-send due to timeouts are different, as the whole message is cached
already, so they don't need any special support.