Commit Graph

16 Commits

Author SHA1 Message Date
Rusty Russell 2b47922ea5 gossipd: move query functions into their own file.
The only real change is dump_gossip() used to call
maybe_create_next_scid_reply(), but now I've simply renamed
that to maybe_send_query_responses() and we call it directly.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-09-25 04:01:56 +00:00
Rusty Russell fd2d74aa9b gossipd: defer asking about txouts until we're synced or they're 6 deep.
The first one means we don't discard channels just because we're not
synced, and the second is implied by the spec: don't accept
channel_announcement if the channel isn't 6 deep.  Since LND defers in
such cases, we do too (unless it's newer than the current block, in
which case we simply discard).  Otherwise there's a risk that a slow
node might discard valid gossip.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-09-25 04:01:56 +00:00
Rusty Russell 6f9c5f2936 gossipd: get fed the blockheight from lightningd when we know it.
This will let gossipd be more intelligent about gossiping before we're
synced, and also it might know how far behind we are.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-09-25 04:01:56 +00:00
trueptolemy d8dce6e61f cleanup: Use `u32` as the type of `max_hops` in `gossipd` 2019-09-24 16:01:24 +02:00
Rusty Russell 27790832a5 gossipd: gossip_queries_ex is not longer experimental.
The master spec has some typos which make it not parse, so I created
a PR and generated the CSV from that:

https://github.com/lightningnetwork/lightning-rfc/pull/673

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-09-22 01:17:11 +00:00
Rusty Russell 6a8d18c7e3 gossipd: naming cleanups.
Suggested-by: @cdecker.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-09-20 06:55:00 +00:00
Rusty Russell 147eaced2e developer: consolidiate gossip timing options into one --dev-fast-gossip.
It's generally clearer to have simple hardcoded numbers with an
#if DEVELOPER around it, than apparent variables which aren't, really.

Interestingly, our pruning test was always kinda broken: we have to pass
two cycles, since l2 will refresh the channel once to avoid pruning.

Do the more obvious thing, and cut the network in half and check that
l1 and l3 time out.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-09-20 06:55:00 +00:00
Rusty Russell a92ead48bf gossipd: ignore redundant channel_update and node_announcement.
If you send a message which simply changes timestamp and signature, we
drop it.  You shouldn't be doing that, and the door to ignoring them
was opened by by option_gossip_query_ex, which would allow clients to
ignore updates with the same checksum.

This is more aggressive at reducing spam messages, but we allow refreshes
(to be conservative, we allow them even when 1/2 of the way through the
refresh period).

I dropped the now-unnecessary sleep from test_gossip_pruning, too.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-09-20 06:55:00 +00:00
Rusty Russell 21a6d502db gossipd: move gossip message generation into its own file.
gossipd.c is doing too many things: this is a start.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-09-20 06:55:00 +00:00
Rusty Russell 178baeba6c gossipd: get gossip_min_interval from lightningd.
Default is 5 x gossip interval == 5 minutes.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-09-20 06:55:00 +00:00
trueptolemy 5361a5d059 JSON-API: `getroute` now also support `exclude` nodes 2019-09-16 12:22:06 +08:00
Rusty Russell 91072f56b0 developer: add 'dev-gossip-set-time' call to manipulate gossipd's time.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-09-12 05:11:56 +00:00
Rusty Russell 2577ad87d5 gossipd: use gossip_time_now() everywhere.
We've been slack, but it's going to be important for testing
ratelimiting.  And it currently has a minor memory leak.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-09-12 05:11:56 +00:00
Rusty Russell aca2e4f722 common/memleak: add dynamic hooks for assisting memleak.
Rather than reaching into data structures, let them register their own
callbacks.  This avoids us having to expose "memleak_remove_xxx"
functions, and call them manually.

Under the hood, this is done by having a specially-named tal child of
the thing we want to assist, containing the callback.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-09-06 14:35:01 +02:00
Rusty Russell 837e6232c3 common: reduce header differences for DEVELOPER vs non-DEVELOPER.
`make update-mocks` is usually run in DEVELOPER mode, but then it includes
definitions for functions which aren't declared in non-DEVELOPER mode.

We hacked this in a few places, but it's fragile, and worst, now we
have EXPERIMENTAL_FEATURES as well, it's complex.

Instead, declare developer-only functions (but don't define them).
This is a bit more awkward if you accidentally use one in
non-DEVELOPER code (link error rather than compile error), but makes
autogenerating test mocks much easier.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-09-06 14:35:01 +02:00
Rusty Russell 855dff704c gossipd: test crc32 routines using test vectors from PR.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-08-27 12:35:25 +02:00