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- o Infrastructure features:
- - Introduce new channel_t abstraction between circuits and or_connection_t
- to allow for implementing alternate OR-to-OR transports. A channel_t is
- an abstract object which can either be a cell-bearing channel, which is
- responsible for authenticating and handshaking with the remote OR and
- transmitting cells to and from it, or a listening channel, which spawns
- new cell-bearing channels at the request of remote ORs.
- - Also new is the channel_tls_t subclass of channel_t, adapting it to the
- existing or_connection_t code. The V2/V3 protocol handshaking code
- which formerly resided in command.c has been moved below the channel_t
- abstraction layer and may be found in channeltls.c now.
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