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gossipd: turn off lease offers if the rates are empty

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If received lease rates are empty (all zeroes), turn them off
This commit is contained in:
niftynei 2021-06-10 15:30:19 -05:00 committed by neil saitug
parent c934fe095b
commit 9e839b177c
5 changed files with 34 additions and 2 deletions
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1
common/Makefile
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@ -53,6 +53,7 @@ COMMON_SRC_NOGEN := \
common/key_derive.c \
common/keyset.c \
common/gossmap.c \
common/lease_rates.c \
common/memleak.c \
common/msg_queue.c \
common/node_id.c \

17
common/lease_rates.c Normal file
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@ -0,0 +1,17 @@
#include "config.h"
#include <ccan/ccan/mem/mem.h>
#include <common/lease_rates.h>
#include <wire/peer_wire.h>
bool lease_rates_empty(struct lease_rates *rates)
{
if (!rates)
return true;
/* FIXME: why can't i do memeqzero? */
return rates->funding_weight == 0
&& rates->channel_fee_max_base_msat == 0
&& rates->channel_fee_max_proportional_thousandths == 0
&& rates->lease_fee_base_sat == 0
&& rates->lease_fee_basis == 0;
}

9
common/lease_rates.h Normal file
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@ -0,0 +1,9 @@
#ifndef LIGHTNING_COMMON_LEASE_RATES_H
#define LIGHTNING_COMMON_LEASE_RATES_H
#include "config.h"
#include <stdbool.h>
struct lease_rates;
bool lease_rates_empty(struct lease_rates *rates);
#endif /* LIGHTNING_COMMON_LEASE_RATES_H */

1
gossipd/Makefile
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@ -48,6 +48,7 @@ GOSSIPD_COMMON_OBJS := \
common/status_wiregen.o \
common/gossip_rcvd_filter.o \
common/key_derive.o \
common/lease_rates.o \
common/memleak.o \
common/msg_queue.o \
common/node_id.o \

8
gossipd/gossipd.c
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@ -32,6 +32,7 @@
#include <common/daemon_conn.h>
#include <common/ecdh_hsmd.h>
#include <common/features.h>
#include <common/lease_rates.h>
#include <common/memleak.h>
#include <common/ping.h>
#include <common/pseudorand.h>
@ -1418,8 +1419,11 @@ static struct io_plan *handle_new_lease_rates(struct io_conn *conn,
if (!fromwire_gossipd_new_lease_rates(msg, rates))
master_badmsg(WIRE_GOSSIPD_NEW_LEASE_RATES, msg);
tal_free(daemon->rates);
daemon->rates = rates;
daemon->rates = tal_free(daemon->rates);
if (!lease_rates_empty(rates))
daemon->rates = rates;
else
tal_free(rates);
/* Send the update over to the peer */
maybe_send_own_node_announce(daemon, false);