core-lightning/lightningd/peer_state.h
Rusty Russell 474887512d gossipd: rewrite to do the handshake internally.
Now the flow is much simpler from a lightningd POV:

1. If we want to connect to a peer, just send gossipd `gossipctl_reach_peer`.
2. Every new peer, gossipd hands up to lightningd, with global/local features
   and the peer fd and a gossip fd using `gossip_peer_connected`
3. If lightningd doesn't want it, it just hands the peerfd and global/local
   features back to gossipd using `gossipctl_handle_peer`
4. If a peer sends a non-gossip msg (eg `open_channel`) the gossipd sends
   it up using `gossip_peer_nongossip`.
5. If lightningd wants to fund a channel, it simply calls `release_channel`.

Notes:
* There's no more "unique_id": we use the peer id.
* For the moment, we don't ask gossipd when we're told to list peers, so
  connected peers without a channel don't appear in the JSON getpeers API.
* We add a `gossipctl_peer_addrhint` for the moment, so you can connect to
  a specific ip/port, but using other sources is a TODO.
* We now (correctly) only give up on reaching a peer after we exchange init
  messages, which changes the test_disconnect case.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2017-10-20 18:31:32 +02:00

37 lines
786 B
C

#ifndef LIGHTNING_LIGHTNINGD_PEER_STATE_H
#define LIGHTNING_LIGHTNINGD_PEER_STATE_H
#include "config.h"
enum peer_state {
UNINITIALIZED,
/* Negotiating channel opening: in opening daemon */
OPENINGD,
/* In channeld, still waiting for lockin. */
CHANNELD_AWAITING_LOCKIN,
/* Normal operating state. */
CHANNELD_NORMAL,
/* We are closing, pending HTLC resolution. */
CHANNELD_SHUTTING_DOWN,
/* Exchanging signatures on closing tx. */
CLOSINGD_SIGEXCHANGE,
/* Waiting for onchain event. */
CLOSINGD_COMPLETE,
/* We've seen the funding spent, we're waiting for onchaind. */
FUNDING_SPEND_SEEN,
/* Various onchain states. */
ONCHAIND_CHEATED,
ONCHAIND_THEIR_UNILATERAL,
ONCHAIND_OUR_UNILATERAL,
ONCHAIND_MUTUAL
};
#endif /* LIGHTNING_LIGHTNINGD_PEER_STATE_H */