mirrors/core-lightning
1
0
Fork 0
mirror of https://github.com/ElementsProject/lightning.git synced 2025-02-23 06:55:13 +01:00
Code Issues Projects Releases Wiki Activity

lightningd: obey first hop channel id.

Browse source 
Reported-by: Warren Togami
Changelog-Changed: `sendpay` and `sendonion` now obey the first hop "channel" short_channel_id, if specified.
Changelog-Deprecated: `sendpay` and `sendonion` could take a bogus first hop "channel" short_channel_id
This commit is contained in:
Rusty Russell 2022-08-09 07:21:36 +09:30 • committed by neil saitug
parent 9543204b79
commit 054339e0cb
1 changed files with 15 additions and 6 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

21
lightningd/pay.c
View file

@ -1,4 +1,5 @@
#include "config.h"
#include <ccan/mem/mem.h>
#include <ccan/tal/str/str.h>
#include <common/bolt12_merkle.h>
#include <common/configdir.h>
@ -827,19 +828,26 @@ static struct command_result *check_offer_usage(struct command *cmd,
}
static struct channel *find_channel_for_htlc_add(struct lightningd *ld,
const struct node_id *node)
const struct node_id *node,
const struct short_channel_id *scid)
{
struct channel *channel;
struct peer *peer = peer_by_id(ld, node);
if (!peer)
return NULL;
list_for_each(&peer->channels, channel, list) {
if (channel_can_add_htlc(channel)) {
return channel;
channel = find_channel_by_scid(peer, scid);
if (channel && channel_can_add_htlc(channel))
return channel;
/* We used to ignore scid: now all-zero means "any" */
if (!channel && (deprecated_apis || memeqzero(scid, sizeof(*scid)))) {
list_for_each(&peer->channels, channel, list) {
if (channel_can_add_htlc(channel)) {
return channel;
}
}
}
return NULL;
}
@ -1032,7 +1040,8 @@ send_payment_core(struct lightningd *ld,
if (offer_err)
return offer_err;
channel = find_channel_for_htlc_add(ld, &first_hop->node_id);
channel = find_channel_for_htlc_add(ld, &first_hop->node_id,
&first_hop->scid);
if (!channel) {
struct json_stream *data
= json_stream_fail(cmd, PAY_TRY_OTHER_ROUTE,