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listpeers: correctly display features on reconnect.

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peer features are only kept for connected peers (as they can change),
but we didn't update them on reconnect.  The main effect was that
after a restart we displayed the features as empty, even after
reconnect.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell
2018-08-17 13:44:39 +09:30
committed by Christian Decker
parent f5143d9549
commit 162adfdf12
2 changed files with 27 additions and 5 deletions
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20
lightningd/peer_control.c
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@@ -78,6 +78,18 @@ static void copy_to_parent_log(const char *prefix,
log_(parent_log, level, "%s %s", prefix, str);
}
static void peer_update_features(struct peer *peer,
const u8 *gfeatures TAKES,
const u8 *lfeatures TAKES)
{
tal_free(peer->global_features);
tal_free(peer->local_features);
peer->global_features = tal_dup_arr(peer, u8,
gfeatures, tal_count(gfeatures), 0);
peer->local_features = tal_dup_arr(peer, u8,
lfeatures, tal_count(lfeatures), 0);
}
struct peer *new_peer(struct lightningd *ld, u64 dbid,
const struct pubkey *id,
const struct wireaddr_internal *addr,
@@ -97,10 +109,8 @@ struct peer *new_peer(struct lightningd *ld, u64 dbid,
peer->addr.itype = ADDR_INTERNAL_WIREADDR;
peer->addr.u.wireaddr.type = ADDR_TYPE_PADDING;
}
peer->global_features = tal_dup_arr(peer, u8,
gfeatures, tal_count(gfeatures), 0);
peer->local_features = tal_dup_arr(peer, u8,
lfeatures, tal_count(lfeatures), 0);
peer->global_features = peer->local_features = NULL;
peer_update_features(peer, gfeatures, lfeatures);
list_head_init(&peer->channels);
peer->direction = get_channel_direction(&peer->ld->id, &peer->id);
@@ -447,6 +457,8 @@ void peer_connected(struct lightningd *ld, const u8 *msg,
peer = peer_by_id(ld, &id);
if (!peer)
peer = new_peer(ld, 0, &id, &addr, gfeatures, lfeatures);
else
peer_update_features(peer, gfeatures, lfeatures);
/* Can't be opening, since we wouldn't have sent peer_disconnected. */
assert(!peer->uncommitted_channel);