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9574c0d89c
Creates a copy of `our_features` for the uncommitted channel so we can customize it per peer.
144 lines
4 KiB
C
144 lines
4 KiB
C
#ifndef LIGHTNING_LIGHTNINGD_OPENING_COMMON_H
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#define LIGHTNING_LIGHTNINGD_OPENING_COMMON_H
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#include "config.h"
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#include <bitcoin/pubkey.h>
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#include <common/amount.h>
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#include <common/channel_config.h>
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#include <common/channel_id.h>
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#include <common/derive_basepoints.h>
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#include <common/status_levels.h>
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struct amount_msat;
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struct amount_sat;
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struct basepoints;
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struct channel_config;
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struct command;
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struct lightningd;
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struct log;
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struct peer;
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struct wally_tx;
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struct uncommitted_channel {
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/* peer->uncommitted_channel == this */
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struct peer *peer;
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/* opening daemon which is running now */
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struct subd *open_daemon;
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/* Reserved dbid for if we become a real struct channel */
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u64 dbid;
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/* Channel id, v2 opens only */
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struct channel_id cid;
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/* For logging */
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struct log *log;
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/* Openingd can tell us stuff. */
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const char *transient_billboard;
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/* If we offered channel, this contains information, otherwise NULL */
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struct funding_channel *fc;
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/* Our basepoints for the channel. */
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struct basepoints local_basepoints;
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/* Public key for funding tx. */
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struct pubkey local_funding_pubkey;
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/* If true, we are already in fundee-mode and any future
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* `fundchannel_start` on our end should fail.
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*/
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bool got_offer;
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/* These are *not* filled in by new_uncommitted_channel: */
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/* Minimum funding depth (if opener == REMOTE). */
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u32 minimum_depth;
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/* Our channel config. */
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struct channel_config our_config;
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/* Features we propose to this peer. This is a copy of
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* ld->our_features, but customized for this specific peer. */
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struct feature_set *our_features;
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};
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struct funding_channel {
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struct command *cmd; /* Which initially owns us until openingd request */
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struct wallet_tx *wtx;
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struct amount_msat push;
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struct amount_sat funding_sats;
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u8 channel_flags;
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const u8 *our_upfront_shutdown_script;
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/* Variables we need to compose fields in cmd's response */
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const char *hextx;
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/* Peer we're trying to reach. */
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struct pubkey peerid;
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/* Channel, subsequent owner of us */
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struct uncommitted_channel *uc;
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/* Channel type we ended up negotiating. */
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struct channel_type *channel_type;
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/* The scriptpubkey to pay (once started) */
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u8 *funding_scriptpubkey;
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/* Whether or not this is in the middle of getting funded */
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bool inflight;
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/* Initial openingd_funder_start msg */
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const u8 *open_msg;
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/* Any commands trying to cancel us. */
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struct command **cancels;
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/* Place to stash the per-peer-state while we wait
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* for them to get back to us with signatures */
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struct peer_fd *peer_fd;
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};
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struct uncommitted_channel *new_uncommitted_channel(struct peer *peer);
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void opend_channel_errmsg(struct uncommitted_channel *uc,
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struct peer_fd *peer_fd,
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const struct channel_id *channel_id UNUSED,
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const char *desc,
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bool warning UNUSED,
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const u8 *err_for_them UNUSED);
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void opend_channel_set_billboard(struct uncommitted_channel *uc,
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bool perm UNUSED,
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const char *happenings TAKES);
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void uncommitted_channel_disconnect(struct uncommitted_channel *uc,
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enum log_level level,
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const char *desc);
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void kill_uncommitted_channel(struct uncommitted_channel *uc,
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const char *why);
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void channel_config(struct lightningd *ld,
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struct channel_config *ours,
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u32 *max_to_self_delay,
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struct amount_msat *min_effective_htlc_capacity);
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/**
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* Are we ok with this peer opening a zeroconf channel?
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*
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* Determines whether we'd be happy to open or accept a zeroconf
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* channel with this peers. It is used to selectively apply the
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* `option_zeroconf` to the `init` message we'll send to the peer when
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* a connection is established. This is sticky, as in it applies to
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* all channels we'll open or accept on this connection. Notice that
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* this does not differentiate between opening of accepting a channel,
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* and that's because the accepter doesn't get a say in the channel
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* negotiation.
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*/
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bool opening_zeroconf_allow(struct lightningd *ld, struct node_id *peer);
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#endif /* LIGHTNING_LIGHTNINGD_OPENING_COMMON_H */
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