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Rusty Russell 2d53707611 openingd: work harder to intuit OPT_SCID_ALIAS. 
option_scid_alias inside a channel_type allows for more private
channels: in particular, it tells the peer that it MUST NOT allow
routing via the real short channel id, and MUST use the alias.

It only makes sense (and is only permitted!) on unannounced channels.

Unfortunately, we didn't set this bit in the channel_type in v12.0
when it was introduced, instead relying on the presence of the feature
bit with the peer.  This was fixed in 23.05, but:

1. Prior to 23.05 we didn't allow it to be set at all, and
2. LND has a limited set of features they allow, and this isn't allowed without
   option_anchors_zero_fee_htlc_tx.

We could simply drop this channel_type until we merge anchors, *but*
that has nasty privacy implications (you can probe the real channel id).

So, if we don't negotiate anchors (we don't!), we don't set this
channel_type bit even if we want it, and *intuit* it, based on:

1. Is this a non-anchor channel_type?
2. Did we both send channel_type?
3. Is this an unannounced channel?
4. Did both peers announce support for scid aliases?

In addition, while looking at the previous backwards-compat code, I
realized that v23.05 violated the spec and send accept_channel with
OPT_SCID_ALIAS if it intuited it, even if it wasn't offered.  Stop
doing this, but allow our peers to.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Changelog-Fixed: Fix incompatibility with LND which prevented us opening private channels
Fixes: #6208
2023-06-09 10:35:06 +09:30
..
test lightningd: switch parsing to common/configvar 2023-06-03 10:50:29 +09:30
.gitignore Ignore all the deamon inside the git history 2021-10-28 15:51:38 +02:00
bitcoind.c plugins/bcli: use the new feerate levels, and the floor. 2023-04-10 07:31:12 +09:30
bitcoind.h lightningd: handle fees as blockcount + range. 2023-04-10 07:31:12 +09:30
chaintopology.c lightningd: expose default_locktime for wider usage. 2023-04-10 17:26:47 +09:30
chaintopology.h lightningd: expose default_locktime for wider usage. 2023-04-10 17:26:47 +09:30
channel.c common: add new internal type for websockets. 2023-06-01 09:28:39 +09:30
channel.h lightningd: remember depth of closing transaction. 2023-04-07 11:49:09 +09:30
channel_control.c channeld: use explicit --experimental-upgrade flag, not #ifdef EXPERIMENTAL_FEATURES 2023-05-23 09:34:08 +09:30
channel_control.h doc: update BOLTs to bc86304b4b0af5fd5ce9d24f74e2ebbceb7e2730 2022-09-12 09:34:52 +09:30
channel_state.h wallet: make it clear that enum state_change is in db. 2023-03-25 15:28:02 +10:30
closed_channel.c lightningd: add listclosedchannels command. 2023-03-25 15:28:02 +10:30
closed_channel.h lightningd: add listclosedchannels command. 2023-03-25 15:28:02 +10:30
closing_control.c lightningd: clarify uses of dynamic (mempool) feerate floor, and static. 2023-04-10 07:31:12 +09:30
closing_control.h lightningd: trace JSON id prefixes through sendrawtx. 2022-09-16 12:31:45 +09:30
coin_mvts.c lightningd: use hash map for peers instead of linked list. 2023-01-21 08:05:31 -06:00
coin_mvts.h coin_mvt: tiny, dont import lightningd header 2022-02-07 13:02:09 +10:30
connect_control.c lightningd: listconfigs update, using configvars code. 2023-06-03 10:50:29 +09:30
connect_control.h lightningd: tell connectd we're shutting down. 2023-02-05 20:40:47 +01:00
datastore.c lightningd: unescape JSON strings for db. 2023-02-11 12:22:40 -06:00
dual_open_control.c common: add new internal type for websockets. 2023-06-01 09:28:39 +09:30
dual_open_control.h lightningd: prepare internal json routines for listpeerchannels. 2023-01-13 10:42:42 +10:30
feerate.c lightningd: allow "NNblocks" and "minimum" as feerates. 2023-04-10 07:31:12 +09:30
feerate.h lightningd: clean up feerate handling, deprecate old terms. 2023-04-10 07:31:12 +09:30
gossip_control.c cleanup: rename json_add_amount_msat_only to json_add_amount_msat 2023-03-18 15:55:49 +10:30
gossip_control.h gossipd: batch outpoints spent, add block height. 2022-09-24 15:22:27 +09:30
hsm_control.c lightningd: create small hsm_sync_req() helper for hsm queries. 2023-04-10 17:26:47 +09:30
hsm_control.h lightningd: create small hsm_sync_req() helper for hsm queries. 2023-04-10 17:26:47 +09:30
htlc_end.c channeld: don't calculate blinding shared secret, let lightningd do it. 2022-10-26 11:29:06 +10:30
htlc_end.h channeld: don't calculate blinding shared secret, let lightningd do it. 2022-10-26 11:29:06 +10:30
htlc_set.c Makefile: update bolts a0bbe47b0278b4f152dbaa4f5fab2562413a217c 2023-04-07 21:22:56 +09:30
htlc_set.h Makefile: use completely separate spec-derived files for EXPERIMENTAL_FEATURES 2020-09-08 09:42:00 +09:30
invoice.c lightningd: create small hsm_sync_req() helper for hsm queries. 2023-04-10 17:26:47 +09:30
invoice.h Makefile: use completely separate spec-derived files for EXPERIMENTAL_FEATURES 2020-09-08 09:42:00 +09:30
io_loop_with_timers.c database: pull out database code into a new module 2022-03-05 15:03:34 +10:30
io_loop_with_timers.h lightningd/io_loop_with_timers.c: Move mainloop to its own source file, have chaintopology use it. 2019-05-31 17:57:10 +02:00
jsonrpc.c common: remove json_stream_log_suppress 2023-06-05 16:16:21 +02:00
jsonrpc.h lightningd: only use non-numeric JSON ids if plugin says we can. 2022-11-21 11:23:54 +01:00
lightningd.c lightningd: switch parsing to common/configvar 2023-06-03 10:50:29 +09:30
lightningd.h lightningd: switch parsing to common/configvar 2023-06-03 10:50:29 +09:30
log.c lightningd: listconfigs update, using configvars code. 2023-06-03 10:50:29 +09:30
log.h options: let log-level subsystem filter also cover nodeid. 2022-07-09 09:59:52 +09:30
log_status.c check: make sure all files outside contrib/ include "config.h" first. 2021-12-06 10:05:39 +10:30
log_status.h cleanup: remove unneeded includes in header files. 2021-09-17 09:43:22 +09:30
Makefile lightningd: switch parsing to common/configvar 2023-06-03 10:50:29 +09:30
memdump.c lightningd: fix parent reporting for memleaks. 2023-04-10 17:26:47 +09:30
memdump.h lightningd: simplify memleak code. 2022-03-10 09:40:09 +10:30
notification.c cleanup: rename json_add_amount_msat_only to json_add_amount_msat 2023-03-18 15:55:49 +10:30
notification.h jsonrpc: make error codes an enum. 2022-09-19 10:18:55 +09:30
offer.c lightningd: create small hsm_sync_req() helper for hsm queries. 2023-04-10 17:26:47 +09:30
onchain_control.c lightningd: create small hsm_sync_req() helper for hsm queries. 2023-04-10 17:26:47 +09:30
onchain_control.h onchaind: remove 'is_replay' logic 2021-12-28 04:42:42 +10:30
onion_message.c common: update to latest onion-message spec. 2023-01-30 13:24:29 +10:30
onion_message.h common: remove support for pre v0.10.2 onionmessages. 2021-12-01 05:44:28 +10:30
opening_common.c lightningd: create small hsm_sync_req() helper for hsm queries. 2023-04-10 17:26:47 +09:30
opening_common.h openingd: Add reserve to fundchannel and multifundchannel 2022-09-21 11:25:47 +02:00
opening_control.c openingd: work harder to intuit OPT_SCID_ALIAS. 2023-06-09 10:35:06 +09:30
opening_control.h lightningd: prepare internal json routines for listpeerchannels. 2023-01-13 10:42:42 +10:30
options.c listconfigs: add plugin field if config is for a plugin. 2023-06-03 10:50:29 +09:30
options.h listconfigs: show plugin options in 'configs' with normal options. 2023-06-03 10:50:29 +09:30
pay.c Makefile: update bolts a0bbe47b0278b4f152dbaa4f5fab2562413a217c 2023-04-07 21:22:56 +09:30
pay.h jsonrpc: make error codes an enum. 2022-09-19 10:18:55 +09:30
peer_control.c common: remove websocket type from wireaddr. 2023-06-01 09:28:39 +09:30
peer_control.h listpeerchannels: add channel_type, both in hex and as array of names. 2023-03-25 15:28:02 +10:30
peer_fd.c subdaemons: remove gossipd fd from per-peer daemons. 2022-02-08 11:15:52 +10:30
peer_fd.h subdaemons: remove gossipd fd from per-peer daemons. 2022-02-08 11:15:52 +10:30
peer_htlcs.c ld: Add a couple of logging statements when forwarding 2023-04-11 11:22:30 +09:30
peer_htlcs.h lightningd: fix valgrind reported leak when we exit early. 2023-01-17 14:13:45 +10:30
ping.c common: clean up json routine locations. 2022-07-15 12:24:00 -05:00
plugin.c lightningd: allow false as a default for flags. 2023-06-07 13:16:08 +09:30
plugin.h listconfigs: add plugin field if config is for a plugin. 2023-06-03 10:50:29 +09:30
plugin_control.c lightningd: wire plugin command JSON id through to plugin commands. 2022-09-16 12:31:45 +09:30
plugin_control.h plugins: add command field to subcommand output. 2021-06-25 09:49:33 +09:30
plugin_hook.c lightningd: don't call memcpy with NULL. 2023-01-12 11:44:10 +10:30
plugin_hook.h plugin: wire JSON id for commands which caused hooks to fire. 2022-09-16 12:31:45 +09:30
routehint.c lightnind: use aliases in routehints for private channels. 2022-08-09 16:31:36 -05:00
routehint.h invoice: overhaul routehints to use topology.listincoming, cleanup. 2021-06-16 10:29:17 +09:30
signmessage.c lightningd: create small hsm_sync_req() helper for hsm queries. 2023-04-10 17:26:47 +09:30
subd.c lightningd: more graceful shutdown. 2022-09-12 14:00:41 +02:00
subd.h lightningd: more graceful shutdown. 2022-09-12 14:00:41 +02:00
watch.c lightningd/chaintopology: ensure htables are always tal objects. 2023-01-12 11:44:10 +10:30
watch.h Remove names of parameters of callbacks which confuse gcc. 2022-08-31 12:18:28 +03:00