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gossipd: set no_forward bit on channel_update for private channels. 

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Added: Protocol: We now set the `dont_forward` bit on private channel_update's message_flags (as per latest BOLTs).
This commit is contained in:
Rusty Russell 2022-09-14 13:20:32 +09:30
parent bb49e1bea5
commit bfc21cbb55
7 changed files with 30 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
channeld/channeld.c
View File

@ -369,14 +369,16 @@ static void send_channel_update(struct peer *peer, int disable_flag)
assert(peer->short_channel_ids[LOCAL].u64);
msg = towire_channeld_local_channel_update(NULL,
&peer->short_channel_ids[LOCAL],
disable_flag
== ROUTING_FLAGS_DISABLED,
peer->cltv_delta,
peer->htlc_minimum_msat,
peer->fee_base,
peer->fee_per_satoshi,
peer->htlc_maximum_msat);
&peer->short_channel_ids[LOCAL],
disable_flag
== ROUTING_FLAGS_DISABLED,
peer->cltv_delta,
peer->htlc_minimum_msat,
peer->fee_base,
peer->fee_per_satoshi,
peer->htlc_maximum_msat,
peer->channel_flags
& CHANNEL_FLAGS_ANNOUNCE_CHANNEL);
wire_sync_write(MASTER_FD, take(msg));
}

1
channeld/channeld_wire.csv
View File

@ -256,6 +256,7 @@ msgdata,channeld_local_channel_update,htlc_minimum_msat,amount_msat,
msgdata,channeld_local_channel_update,fee_base_msat,u32,
msgdata,channeld_local_channel_update,fee_proportional_millionths,u32,
msgdata,channeld_local_channel_update,htlc_maximum_msat,amount_msat,
msgdata,channeld_local_channel_update,public,bool,
# Channeld: tell gossipd about our channel_announcement
msgtype,channeld_local_channel_announcement,1014

Can't render this file because it has a wrong number of fields in line 14.

15
gossipd/gossip_generation.c
View File

@ -513,7 +513,8 @@ static u8 *create_unsigned_update(const tal_t *ctx,
struct amount_msat htlc_minimum,
struct amount_msat htlc_maximum,
u32 fee_base_msat,
u32 fee_proportional_millionths)
u32 fee_proportional_millionths,
bool public)
{
secp256k1_ecdsa_signature dummy_sig;
u8 message_flags, channel_flags;
@ -548,6 +549,8 @@ static u8 *create_unsigned_update(const tal_t *ctx,
* | 1 | `dont_forward` |
*/
message_flags = ROUTING_OPT_HTLC_MAX_MSAT;
if (!public)
message_flags |= ROUTING_OPT_DONT_FORWARD;
/* We create an update with a dummy signature and timestamp. */
return towire_channel_update(ctx,
@ -771,7 +774,8 @@ void refresh_local_channel(struct daemon *daemon,
false, cltv_expiry_delta,
htlc_minimum, htlc_maximum,
fee_base_msat,
fee_proportional_millionths);
fee_proportional_millionths,
!(message_flags & ROUTING_OPT_DONT_FORWARD));
sign_timestamp_and_apply_update(daemon, chan, direction, take(update));
}
@ -788,6 +792,7 @@ void handle_local_channel_update(struct daemon *daemon, const u8 *msg)
int direction;
u8 *unsigned_update;
const struct half_chan *hc;
bool public;
if (!fromwire_gossipd_local_channel_update(msg,
&id,
@ -797,7 +802,8 @@ void handle_local_channel_update(struct daemon *daemon, const u8 *msg)
&htlc_minimum,
&fee_base_msat,
&fee_proportional_millionths,
&htlc_maximum)) {
&htlc_maximum,
&public)) {
master_badmsg(WIRE_GOSSIPD_LOCAL_CHANNEL_UPDATE, msg);
}
@ -822,7 +828,8 @@ void handle_local_channel_update(struct daemon *daemon, const u8 *msg)
disable, cltv_expiry_delta,
htlc_minimum, htlc_maximum,
fee_base_msat,
fee_proportional_millionths);
fee_proportional_millionths,
public);
hc = &chan->half[direction];

1
gossipd/gossipd_wire.csv
View File

@ -103,6 +103,7 @@ 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,
msgdata,gossipd_local_channel_update,public,bool,
# Send this channel_announcement
msgtype,gossipd_local_channel_announcement,3006

1 #include <common/cryptomsg.h>
103 msgdata,gossipd_discovered_ip,discovered_ip,wireaddr, msgtype,gossipd_discovered_ip,3009
104 msgdata,gossipd_discovered_ip,discovered_ip,wireaddr,
105
106
107
108
109

2
gossipd/test/run-check_node_announcement.c
View File

@ -34,7 +34,7 @@ void ecdh(const struct pubkey *point UNNEEDED, struct secret *ss UNNEEDED)
struct peer *find_peer(struct daemon *daemon UNNEEDED, const struct node_id *id UNNEEDED)
{ fprintf(stderr, "find_peer called!\n"); abort(); }
/* Generated stub for fromwire_gossipd_local_channel_update */
bool fromwire_gossipd_local_channel_update(const void *p UNNEEDED, struct node_id *id UNNEEDED, struct short_channel_id *short_channel_id UNNEEDED, bool *disable UNNEEDED, u16 *cltv_expiry_delta UNNEEDED, struct amount_msat *htlc_minimum_msat UNNEEDED, u32 *fee_base_msat UNNEEDED, u32 *fee_proportional_millionths UNNEEDED, struct amount_msat *htlc_maximum_msat UNNEEDED)
bool fromwire_gossipd_local_channel_update(const void *p UNNEEDED, struct node_id *id UNNEEDED, struct short_channel_id *short_channel_id UNNEEDED, bool *disable UNNEEDED, u16 *cltv_expiry_delta UNNEEDED, struct amount_msat *htlc_minimum_msat UNNEEDED, u32 *fee_base_msat UNNEEDED, u32 *fee_proportional_millionths UNNEEDED, struct amount_msat *htlc_maximum_msat UNNEEDED, bool *public UNNEEDED)
{ fprintf(stderr, "fromwire_gossipd_local_channel_update called!\n"); abort(); }
/* Generated stub for fromwire_gossipd_used_local_channel_update */
bool fromwire_gossipd_used_local_channel_update(const void *p UNNEEDED, struct short_channel_id *scid UNNEEDED)

2
gossipd/test/run-crc32_of_update.c
View File

@ -55,7 +55,7 @@ struct peer *find_peer(struct daemon *daemon UNNEEDED, const struct node_id *id
bool fromwire_gossipd_dev_set_max_scids_encode_size(const void *p UNNEEDED, u32 *max UNNEEDED)
{ fprintf(stderr, "fromwire_gossipd_dev_set_max_scids_encode_size called!\n"); abort(); }
/* Generated stub for fromwire_gossipd_local_channel_update */
bool fromwire_gossipd_local_channel_update(const void *p UNNEEDED, struct node_id *id UNNEEDED, struct short_channel_id *short_channel_id UNNEEDED, bool *disable UNNEEDED, u16 *cltv_expiry_delta UNNEEDED, struct amount_msat *htlc_minimum_msat UNNEEDED, u32 *fee_base_msat UNNEEDED, u32 *fee_proportional_millionths UNNEEDED, struct amount_msat *htlc_maximum_msat UNNEEDED)
bool fromwire_gossipd_local_channel_update(const void *p UNNEEDED, struct node_id *id UNNEEDED, struct short_channel_id *short_channel_id UNNEEDED, bool *disable UNNEEDED, u16 *cltv_expiry_delta UNNEEDED, struct amount_msat *htlc_minimum_msat UNNEEDED, u32 *fee_base_msat UNNEEDED, u32 *fee_proportional_millionths UNNEEDED, struct amount_msat *htlc_maximum_msat UNNEEDED, bool *public UNNEEDED)
{ fprintf(stderr, "fromwire_gossipd_local_channel_update called!\n"); abort(); }
/* Generated stub for fromwire_gossipd_used_local_channel_update */
bool fromwire_gossipd_used_local_channel_update(const void *p UNNEEDED, struct short_channel_id *scid UNNEEDED)

8
lightningd/gossip_control.c
View File

@ -286,7 +286,7 @@ void tell_gossipd_local_channel_update(struct lightningd *ld,
const u8 *msg)
{
struct short_channel_id scid;
bool disable;
bool disable, public;
u16 cltv_expiry_delta;
struct amount_msat htlc_minimum_msat;
u32 fee_base_msat, fee_proportional_millionths;
@ -297,7 +297,7 @@ void tell_gossipd_local_channel_update(struct lightningd *ld,
&htlc_minimum_msat,
&fee_base_msat,
&fee_proportional_millionths,
&htlc_maximum_msat)) {
&htlc_maximum_msat, &public)) {
channel_internal_error(channel,
"bad channeld_local_channel_update %s",
tal_hex(channel, msg));
@ -317,7 +317,9 @@ void tell_gossipd_local_channel_update(struct lightningd *ld,
cltv_expiry_delta,
htlc_minimum_msat,
fee_base_msat,
fee_proportional_millionths, htlc_maximum_msat)));
fee_proportional_millionths,
htlc_maximum_msat,
public)));
}
void tell_gossipd_local_channel_announce(struct lightningd *ld,