lightning/gossipd/gossip_peerd_wire.csv

# These must be distinct from WIRE_CHANNEL_ANNOUNCEMENT etc. gossip msgs!
# Channel daemon can ask for updates for a specific channel, for sending
# errors.  
msgtype,gossipd_get_update,3501
msgdata,gossipd_get_update,short_channel_id,short_channel_id,

# If channel isn't known, update will be empty.
msgtype,gossipd_get_update_reply,3601
msgdata,gossipd_get_update_reply,len,u16,
msgdata,gossipd_get_update_reply,update,u8,len

# Both sides have seen the funding tx being locked, but we have not
# yet reached the announcement depth. So we add the channel locally so
# we (and peer) can update it already.
msgtype,gossipd_local_add_channel,3503
msgdata,gossipd_local_add_channel,short_channel_id,short_channel_id,
msgdata,gossipd_local_add_channel,remote_node_id,node_id,
msgdata,gossipd_local_add_channel,satoshis,amount_sat,

# Send this channel_update.
msgtype,gossipd_local_channel_update,3504
msgdata,gossipd_local_channel_update,short_channel_id,short_channel_id,
msgdata,gossipd_local_channel_update,disable,bool,
msgdata,gossipd_local_channel_update,cltv_expiry_delta,u16,
msgdata,gossipd_local_channel_update,htlc_minimum_msat,amount_msat,
msgdata,gossipd_local_channel_update,fee_base_msat,u32,
msgdata,gossipd_local_channel_update,fee_proportional_millionths,u32,
msgdata,gossipd_local_channel_update,htlc_maximum_msat,amount_msat,

# Update your gossip_store fd: + gossip_store_fd
msgtype,gossipd_new_store_fd,3505
# How much shorter the new store is, so you can offset streaming.
msgdata,gossipd_new_store_fd,offset_shorter,u64,

# Send this channel_announcement
msgtype,gossipd_local_channel_announcement,3506
msgdata,gossipd_local_channel_announcement,len,u16,
msgdata,gossipd_local_channel_announcement,cannount,u8,len