core-lightning/lightningd/gossip_msg.c
Christian Decker d87ca4121d routing: Returning channel_id to getroute requests
The new onion uses the `channel_id` instead of the `node_id` of the
next hop to identify where to forward the payment. So we return the
exact channel chosen by the routing algo, to avoid having to look it
up again later.
2017-05-02 11:47:52 +02:00

69 lines
2.3 KiB
C

#include <lightningd/gossip_msg.h>
#include <wire/wire.h>
void fromwire_gossip_getnodes_entry(const tal_t *ctx, const u8 **pptr, size_t *max, struct gossip_getnodes_entry *entry)
{
u8 hostnamelen;
fromwire_pubkey(pptr, max, &entry->nodeid);
hostnamelen = fromwire_u8(pptr, max);
entry->hostname = tal_arr(ctx, char, hostnamelen);
fromwire_u8_array(pptr, max, (u8*)entry->hostname, hostnamelen);
entry->port = fromwire_u16(pptr, max);
}
void towire_gossip_getnodes_entry(u8 **pptr, const struct gossip_getnodes_entry *entry)
{
u8 hostnamelen;
towire_pubkey(pptr, &entry->nodeid);
if (entry->hostname) {
hostnamelen = strlen(entry->hostname);
towire_u8(pptr, hostnamelen);
towire_u8_array(pptr, (u8*)entry->hostname, hostnamelen);
}else {
/* If we don't have a hostname just write an empty string */
hostnamelen = 0;
towire_u8(pptr, hostnamelen);
}
towire_u16(pptr, entry->port);
}
void fromwire_route_hop(const u8 **pptr, size_t *max, struct route_hop *entry)
{
fromwire_pubkey(pptr, max, &entry->nodeid);
fromwire_short_channel_id(pptr, max, &entry->channel_id);
entry->amount = fromwire_u32(pptr, max);
entry->delay = fromwire_u32(pptr, max);
}
void towire_route_hop(u8 **pptr, const struct route_hop *entry)
{
towire_pubkey(pptr, &entry->nodeid);
towire_short_channel_id(pptr, &entry->channel_id);
towire_u32(pptr, entry->amount);
towire_u32(pptr, entry->delay);
}
void fromwire_gossip_getchannels_entry(const u8 **pptr, size_t *max,
struct gossip_getchannels_entry *entry)
{
fromwire_short_channel_id(pptr, max, &entry->short_channel_id);
fromwire_pubkey(pptr, max, &entry->source);
fromwire_pubkey(pptr, max, &entry->destination);
entry->active = fromwire_bool(pptr, max);
entry->fee_per_kw = fromwire_u32(pptr, max);
entry->delay = fromwire_u32(pptr, max);
entry->last_update_timestamp = fromwire_u32(pptr, max);
entry->flags = fromwire_u16(pptr, max);
}
void towire_gossip_getchannels_entry(
u8 **pptr, const struct gossip_getchannels_entry *entry)
{
towire_short_channel_id(pptr, &entry->short_channel_id);
towire_pubkey(pptr, &entry->source);
towire_pubkey(pptr, &entry->destination);
towire_bool(pptr, entry->active);
towire_u32(pptr, entry->fee_per_kw);
towire_u32(pptr, entry->delay);
towire_u32(pptr, entry->last_update_timestamp);
towire_u16(pptr, entry->flags);
}