core-lightning/lightningd/peer_control.h
Rusty Russell 006300ab96 lightningd: set "direction" correctly for connect which is already connected.
This means remembering the connection direction.  We also use the address to try
to reconnect, which we shouldn't bother with if they connect to us.

For peers from the database, we currently always save the addr: we shouldn't really
do this if they connected to us, since it's not useful for reconnecting (we don't
show the addr in JSON reply to listpeers unless we're connected, so it's only an
internal issue).  This is left for future work.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2021-03-26 13:22:33 +10:30

112 lines
3.2 KiB
C

#ifndef LIGHTNING_LIGHTNINGD_PEER_CONTROL_H
#define LIGHTNING_LIGHTNINGD_PEER_CONTROL_H
#include "config.h"
#include <ccan/compiler/compiler.h>
#include <ccan/crypto/shachain/shachain.h>
#include <ccan/list/list.h>
#include <common/channel_config.h>
#include <common/htlc.h>
#include <common/json.h>
#include <common/node_id.h>
#include <common/wireaddr.h>
#include <lightningd/channel.h>
#include <lightningd/channel_state.h>
#include <stdbool.h>
#include <wallet/wallet.h>
#include <wire/peer_wire.h>
struct per_peer_state;
struct wally_psbt;
struct peer {
/* Inside ld->peers. */
struct list_node list;
/* Master context */
struct lightningd *ld;
/* Database ID of the peer */
u64 dbid;
/* ID of peer */
struct node_id id;
/* Our channels */
struct list_head channels;
/* Our (only) uncommitted channel, still opening. */
struct uncommitted_channel *uncommitted_channel;
/* Where we connected to, or it connected from. */
struct wireaddr_internal addr;
bool connected_incoming;
/* We keep a copy of their feature bits */
const u8 *their_features;
/* If we open a channel our direction will be this */
u8 direction;
#if DEVELOPER
/* Swallow incoming HTLCs (for testing) */
bool ignore_htlcs;
#endif
};
struct peer *find_peer_by_dbid(struct lightningd *ld, u64 dbid);
struct peer *new_peer(struct lightningd *ld, u64 dbid,
const struct node_id *id,
const struct wireaddr_internal *addr,
bool connected_incoming);
/* Last one out deletes peer. Also removes from db. */
void maybe_delete_peer(struct peer *peer);
struct peer *peer_by_id(struct lightningd *ld, const struct node_id *id);
struct peer *peer_from_json(struct lightningd *ld,
const char *buffer,
const jsmntok_t *peeridtok);
void peer_connected(struct lightningd *ld, const u8 *msg,
int peer_fd, int gossip_fd, int gossip_store_fd);
/* Could be configurable. */
#define OUR_CHANNEL_FLAGS CHANNEL_FLAGS_ANNOUNCE_CHANNEL
void channel_errmsg(struct channel *channel,
struct per_peer_state *pps,
const struct channel_id *channel_id,
const char *desc,
bool warning,
const u8 *err_for_them);
u8 *p2wpkh_for_keyidx(const tal_t *ctx, struct lightningd *ld, u64 keyidx);
/* We've loaded peers from database, set them going. */
void activate_peers(struct lightningd *ld);
void drop_to_chain(struct lightningd *ld, struct channel *channel, bool cooperative);
void channel_watch_funding(struct lightningd *ld, struct channel *channel);
/* If this channel has a "wrong funding" shutdown, watch that too. */
void channel_watch_wrong_funding(struct lightningd *ld, struct channel *channel);
struct amount_msat channel_amount_receivable(const struct channel *channel);
/* Pull peers, channels and HTLCs from db, and wire them up.
* Returns any HTLCs we have to resubmit via htlcs_resubmit. */
struct htlc_in_map *load_channels_from_wallet(struct lightningd *ld);
#if DEVELOPER
void peer_dev_memleak(struct command *cmd);
void handle_custommsg_in(struct lightningd *ld, const struct node_id *peer_id,
const u8 *msg);
#endif /* DEVELOPER */
/* Triggered at each new block. */
void waitblockheight_notify_new_block(struct lightningd *ld,
u32 block_height);
#endif /* LIGHTNING_LIGHTNINGD_PEER_CONTROL_H */