Commit Graph

129 Commits

Author SHA1 Message Date
Rusty Russell d881a4bd66 BOLT: update to latest version.
This is all typo/clarity fixes, no substantive changes.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-03-31 13:36:02 +02:00
Rusty Russell a430abf899 connectd: permit multiple descriptors of the same type.
This restriction was removed from the spec as of
86c2ebcc5973a4133d3ce4d80ae1c203061a1646.

We also fix up some strange formatting in that part of the documentation.

Changelog-changed: We now announce multiple addresses of the same type, if given.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-03-31 13:36:02 +02:00
Rusty Russell 2aad3ffcf8 common: tal_dup_talarr() helper.
This is a common thing to do, so create a macro.

Unfortunately, it still needs the type arg, because the paramter may
be const, and the return cannot be, and C doesn't have a general
"(-const)" cast.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-02-27 14:16:16 +10:30
Christian Decker 8d6c8c3cd1 connectd: Pass the init_featurebits down to connectd and use in init
The `init_featurebits` are computed at startup, and then cached
indefinitely. They are then used whenever a new `init` handshake is performed.

We could add a new message to push updates to `connectd` whenever a plugin is
added or removed, but that's up for discussion.
2020-02-11 13:53:31 +10:30
Christian Decker 9b976da3bc features: Add featurebits_or helper to combine two featurebitstrings
We will be doing this when collecting featurebits from the plugins, so make
this a reusable function.
2020-02-11 13:53:31 +10:30
Vasil Dimov 125d63e1cc connectd: use PRIu8 for printing u8 instead of %d
Changelog-None
2020-02-03 15:38:11 +00:00
Wladimir J. van der Laan e4c6fd89b7 Add missing `extern` qualifiers for gcc 10
GCC 10 defaults to `-fno-common`. no longer automatically sharing
global variable definitions, which makes it important to define
them in only one place (otherwise there will be duplicate definition
errors). Add `extern` qualifiers where (I think) is the best place for
them.
2020-02-02 12:59:17 +10:30
Vasil Dimov 55173a56b7 Use dedicated type for error codes
Before this patch we used `int` for error codes. The problem with
`int` is that we try to pass it to/from wire and the size of `int` is
not defined by the standard. So a sender with 4-byte `int` would write
4 bytes to the wire and a receiver with 2-byte `int` (for example) would
read just 2 bytes from the wire.

To resolve this:

* Introduce an error code type with a known size:
  `typedef s32 errcode_t`.

* Change all error code macros to constants of type `errcode_t`.
  Constants also play better with gdb - it would visualize the name of
  the constant instead of the numeric value.

* Change all functions that take error codes to take the new type
  `errcode_t` instead of `int`.

* Introduce towire / fromwire functions to send / receive the newly added
  type `errcode_t` and use it instead of `towire_int()`.

In addition:

* Remove the now unneeded `towire_int()`.

* Replace a hardcoded error code `-2` with a new constant
  `INVOICE_EXPIRED_DURING_WAIT` (903).

Changelog-Changed: The waitinvoice command would now return error code 903 to designate that the invoice expired during wait, instead of the previous -2
2020-01-31 06:02:47 +00:00
Rusty Russell 1099f6a5e1 common: use struct onionreply.
This makes it clear we're dealing with a message which is a wrapped error
reply (needing unwrap_onionreply), not an already-wrapped one.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-01-23 16:17:42 +10:30
Vasil Dimov fb7c006187 wire: add towire_int() and use it in connectd
Add towire_int() and fromwire_int() functions to "(de)serialize"
"int". This will only work as long as both the caller of towire_int()
and the caller of fromwire_int() use the same in-memory representation
of signed integers and have the same sizeof(int).

Changelog-None
2020-01-21 16:59:18 +01:00
Vasil Dimov fc75d8a9e6 connectd: add own err codes instead of generic -1
Make it possible for connectd to send an error code to lightningd in
addition to the error message. Introduce two new error codes, replacing
the catch-all -1.

This change, together with
https://github.com/ElementsProject/lightning/pull/3395
will implement https://github.com/ElementsProject/lightning/issues/3366

Changelog-Changed: The `connect` command now returns its own error codes instead of a generic -1.
2020-01-21 16:59:18 +01:00
Saibato 9824c14c9b Minor source code style change of comments.
Signed-off-by: Saibato <saibato.naga@pm.me>
2020-01-10 17:53:31 +01:00
Saibato 291fc48cd3 Fix an edge case where the connect answer is not zero and not error.
The tor proxy might want auth 0x2 or answer what ever not defined
in https://tools.ietf.org/html/rfc1928.

Changelog-Fixed: TOR: We don't send any further request if the return code of connect is not zero or error.

Signed-off-by: Saibato <saibato.naga@pm.me>
2020-01-10 17:53:31 +01:00
Vasil Dimov 26d081d500 connectd: translate socks5 errors to human strings
For example:
"Tor connect out for host example.com error: 4 "
becomes:
"Error connecting to example.com: Tor server reply: host unreachable"

Also clarify the error:
"Connected out for example.com error"
to:
"Connected out for example.com error: authentication required"
because the only reason it could have failed is that the Tor socks5
server did not like any of our proposed auth methods and we only
proposed "no auth".

Changelog-None
2020-01-09 14:51:49 +01:00
Vasil Dimov 2ea91f834c Add the missing space between "if" and "("
Changelog-None
2020-01-06 12:57:59 +01:00
darosior 77eb9e45b2 connectd: return error when no common chain at init
This is useful for testing.
2019-12-28 14:22:05 +01:00
darosior 1e15e13de0 connectd: clean up a redundant check 2019-12-28 14:22:05 +01:00
darosior 9dcbf20a7a connectd: check all chain hashs of the TLV array 2019-12-28 14:22:05 +01:00
lisa neigut f6ff5e5b19 connectd: make failure message more descriptive 2019-12-04 15:32:31 -06:00
Saibato f6006f43a9 Init commit to be able to create a tor static service on the fly.
We  want to have a static Tor service created from a blob bound to
our node on cmdline

Changelog-added: persistent Tor address support
Changelog-added: allow the Tor inbound service port differ from 9735

Signed-off-by: Saibato <saibato.naga@pm.me>

Add base64 encode/decode to common

We need this to encode the blob for the tor service

Signed-off-by: Saibato <saibato.naga@pm.me>
2019-12-03 23:35:18 +01:00
darosior 3322048774 connectd: add network to init message
Changelog-Added: protocol: We now signal the network we are running on at init.
2019-11-29 21:17:08 +01:00
darosior e6b8a02446 connectd: setup chainparams
We are going to signal the genesis block hash in the init message.
2019-11-29 21:17:08 +01:00
Rusty Russell 3b37c9d426 common/features: clean up feature handling for different cases.
The spec is (RSN!) going to explicitly denote where each feature should
be presented, so create that infrastructure.

Incorporate the new proposed bolt11 features, which need this.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-11-24 23:33:17 +00:00
Rusty Russell 09cdbb70eb common: make BOLT11 use the normal feature array.
This was decided at a recent spec meeting: in particular, mpp and
var_onion_optin options will be used here.

We enhanced "features_supported" into "features_unsupported" so it
can return the first un-handlable bit number.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-11-24 23:33:17 +00:00
Rusty Russell eed654f684 connectd, gossipd: use per-peer logging.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-11-18 04:50:22 +00:00
Rusty Russell 00cb5adfe6 common: allow subdaemons to specify the node_id in status messages.
This is ignored in subdaemons which are per-peer, but very useful for
multi-peer daemons like connectd and gossipd.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-11-18 04:50:22 +00:00
Saibato 187d2e0f26 We state not to do 'any local DNS' if --always-use-proxy flag is set, so we should this
Even if it is on startup only once ...
Like @bitcoin-software indicated the expected UX should be in
line with what a user expects the software will do
so we should not dns if we say so with a flag that suggest that.

Changelog-Fixed: We disable all dns even on startup the scan for bogus dns servers, if --always-use-proxy is set true

Signed-off-by: Saibato <saibato.naga@pm.me>
2019-11-11 00:04:07 +00:00
Rusty Russell fe17acf07b TAGS: reformat to fix when PRINTF_FMT() used.
I was wondering why TAGS was missing some functions, and finally
tracked it down: PRINTF_FMT() confuses etags if it's at the start
of a function, and it ignores the rest of the file.

So we put PRINTF_FMT at the end, but that doesn't work for
*definitions*, only *declarations*.  So we remove it from definitions
and add gratuitous declarations in the few static places.1

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-11-01 17:27:20 -05:00
Christian Decker 3c3d7e2df4 connectd: Do not clobber the for-variable when resolving over DNS
We were using `i` as index variable in two nested loops. This works as long as
the DNS seed resolves to a single address, but will crash if the node has both
an A as well as an AAAA entry, at which point we'll try to index the hostname
without a matching entry.

Signed-off-by: Christian Decker <@cdecker>
2019-10-18 14:34:49 +02:00
Rusty Russell bd55f6d940
common/features: only support a single feature bitset.
This is mainly an internal-only change, especially since we don't
offer any globalfeatures.

However, LND (as of next release) will offer global features, and also
expect option_static_remotekey to be a *global* feature.  So we send
our (merged) feature bitset as both global and local in init, and fold
those bitsets together when we get an init msg.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-10-11 02:52:04 +00:00
Christian Decker 7283efa5b5 elements: Add amount_asset to support more than just plain satoshis
Currently the only source for amount_asset is the value getter on a tx output,
and we don't hand it too far around (mainly ignoring it if it isn't the
chain's main currency). Eventually we could bubble them up to the wallet, use
them to select outputs or actually support assets in the channels.

Since we don't hand them around too widely I thought it was ok for them to be
pass-by-value rather than having to allocate them and pass them around by
reference. They're just 41 bytes currently so the overhead should be ok.

Signed-off-by: Christian Decker <@cdecker>
2019-10-03 04:32:57 +00:00
Christian Decker c38afc5512 tx: Switch to amount_sat for fee computations
Suggested-by: Rusty Russell <@rustyrussell>
2019-10-03 04:32:57 +00:00
darosior 274e32925f connectd: add a BOLT10 reference when doing DNS lookup 2019-09-30 01:18:22 +00:00
darosior a4204226b4 Tidy up parse_wireaddr_from_hostname 2019-09-28 02:49:24 +00:00
Saibato 0f9ba53581 Add enable-autotor-v2 config variable
With enable-autotor-v2 defined in cmdline the default behavior to create
v3 onions with the tor service call, is set to v2 onions.

Signed-off-by: Saibato <saibato.naga@pm.me>
2019-09-28 00:31:02 +02:00
Saibato e638224092 Change default behavior of autotor onions to Version 3 onions. 2019-09-28 00:31:02 +02:00
Rusty Russell 722b4942ed common: rename decode_short_channel_ids.{c,h} to decode_array.{c.h}
This encoding scheme is no longer just used for short_channel_ids, so make
the names more generic.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-09-27 02:32:53 +00:00
Saibato e74dfa7fa1 Show in info log the name of the hidden onion service
Signed-off-by: Saibato <saibato.naga@pm.me>
2019-09-25 04:26:15 +08:00
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
darosior 5cded7863f connectd: correct a segfault in add_seed_addrs
lightning_connectd: FATAL SIGNAL 6 (version v0.6.1-1964-g226e2ae-modded)
0x5610a4a41b5d send_backtrace
	common/daemon.c:40
0x5610a4a41c03 crashdump
	common/daemon.c:53
0x7ff6bf71e83f ???
	???:0
0x7ff6bf71e7bb ???
	???:0
0x7ff6bf709534 ???
	???:0
0x5610a4a7a169 call_error
	ccan/ccan/tal/tal.c:93
0x5610a4a7a331 check_bounds
	ccan/ccan/tal/tal.c:165
0x5610a4a7a38f to_tal_hdr
	ccan/ccan/tal/tal.c:176
0x5610a4a7a3f1 to_tal_hdr_or_null
	ccan/ccan/tal/tal.c:186
0x5610a4a7b2d9 tal_bytelen
	ccan/ccan/tal/tal.c:632
0x5610a4a3a238 add_seed_addrs
	connectd/connectd.c:1282
0x5610a4a3a85c try_connect_peer
	connectd/connectd.c:1374
0x5610a4a3aaa2 connect_to_peer
	connectd/connectd.c:1419
2019-09-12 01:30:47 +00:00
darosior 0b0ad4c22d transition from status_trace() to status_debug 2019-09-10 02:02:51 +00:00
darosior 870d75613f connectd: expand 'seedname()' to allow multiple DNS seeds 2019-09-10 02:02:51 +00:00
darosior b2bb97adde connectd: get multiple addresses from hostname 2019-09-10 02:02:51 +00:00
darosior 9be28fe40f daemons tour: minor typos correction 2019-09-10 02:02:51 +00:00
Rusty Russell c99906a9a9 per-peer-daemons: tie in gossip filter.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-09-06 14:35:01 +02:00
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 cc70b9c4ec wire: use common/bigsize routines
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2019-07-31 23:25:59 +00:00
lisa neigut 46cbca97ea bolt-gen: use 'enum' instead of 'e:' prefix for enums
use 'enum ' in wirespec instead of 'e:' as an indicator
that a field is an enum.
2019-07-24 06:31:46 +00:00
lisa neigut 32eaae0cb9 wire-gen: move in-house wire delcarations to new format
tidying things up!
2019-07-24 06:31:46 +00:00
lisa neigut 7046d0220c makefiles: move all unit tests under `make check-units`
Isolate unit tests under their own make directive.
2019-06-30 16:41:30 +09:30