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538 Commits

Author SHA1 Message Date
Rusty Russell
c11c81a920 daemon: first unit test, infrastructure. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-08-25 11:39:46 +09:30
Rusty Russell
8d2776376a 0.4: Wright's Cryptographic Proof 
Christian Decker moved us to libbase58 and off openssl; he got to name
this release.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-08-19 11:13:10 +09:30
Rusty Russell
190b30e958 daemon: test restarting. 
We add a "dev-restart" command which causes the daemon to close fds
and exec itself.  Then we do it after every command, with the caveat
that we always send a commit before newhtlc, because if not committed,
that is forgotten.  Fulfillhtlc and failhtlc get resent, since they're
idempotent.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-08-18 14:25:14 +09:30
Rusty Russell
71b8a07c56 db.c: database API. 
These tables could use a rework, as they largely reflect our internal
state.  But it's a start.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-08-18 14:25:13 +09:30
Rusty Russell
3866d7605c daemon: reconnect support. 
To do this we keep an order counter so we know how to retransmit.  We
could simply keep old packets, but this is a little clearer for now.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-08-18 14:25:08 +09:30
Rusty Russell
23f9c7c209 permute_tx: don't save permutation map. 
We no longer need it anywhere.  This simplifies things to the point where
we might as well just not include dust outputs as we go, rather than
explicitly removing them, which gets rid of remove_dust.c as well.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-08-18 14:23:46 +09:30
Rusty Russell
809caa8588 bitcoin/pullpush.[ch]: expose bitcoin-style marshal/unmarshal. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-08-18 14:23:45 +09:30
Rusty Russell
ca142a0b47 Signed-off-by: Rusty Russell <rusty@rustcorp.com.au> 2016-08-18 14:23:45 +09:30
Rusty Russell
748f477508 maintclean: fix depends and typo 
Make CORE_OBJS depends on headers, also make them depend on CCAN headers.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-08-09 13:11:13 +09:30
Christian Decker
7546fad324 Removing OpenSSL as a dependency. 2016-08-09 13:10:19 +09:30
Christian Decker
1f4a056009 Switched base58 to use libbase58. 2016-08-09 13:10:19 +09:30
Rusty Russell
c649f62e43 libsecp256k1: update. 
Add Makefile target update-secp256k1, and run it.

The only API change is that len is now an IN-OUT parameter to serialization
functions.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-07-01 12:00:17 +09:30
Rusty Russell
de90b44bf6 Makefile: erase libsecp results on distclean. 
If upgrade changes configure flags, 'make distclean' can fail as it
tries to reconfigure.  Deleting secp256k1/libsecp256k1.la forces a
full autogen/configure/make cycle.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-07-01 12:00:17 +09:30
Rusty Russell
42bed80145 pubkey: don't carry around DER encoding. 
We just wrap the libsecp256k1 structure, and convert to DER on demand.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-07-01 12:00:17 +09:30
Rusty Russell
fecd91ab2a Move funding.[ch] to daemon/channel.[ch]. 
It's a more logical name, and a more logical place.  We change
"funding" to "channel" in the remaining exposed symbols, too.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-07-01 12:00:17 +09:30
Rusty Russell
04b3e8f91d daemon: use siphash for hashes. 
Remove ccan/hash (aka Jenkins lookup3) altogether.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-07-01 12:00:17 +09:30
Rusty Russell
d1416ea5b5 TAGS: don't go into git dirs. 
Things get quite confusing when this happens.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-07-01 11:59:15 +09:30
ocinq
bcdab60694 Makefile : ccan/asort is referenced 
Added explicit compilation and linking of ccan/asort as needed by daemon/chaintopology
 2016-06-14 17:25:07 +02:00
Rusty Russell
49ebed737d daemon/test: test differential fees. 
This would have revealed the previous breakage (and I tested that!),
plus now we test negotiate on closing.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-05-30 11:18:46 +09:30
Rusty Russell
9bb070f5b6 0.3 release: Braydon Fuller: Nakamoto's Genesis Coins 
Braydon wrote the INSTALL.md file; he gets to name this release,
in line with the theme.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-05-26 15:25:25 +09:30
Rusty Russell
97bc4ed0cb daemon/test: test mutual close with outstanding HTLCS. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-05-26 15:25:24 +09:30
Rusty Russell
f43cc72d6a Makefile: add generated packet names. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-05-26 15:25:24 +09:30
Rusty Russell
e46a2ed49a test/test_protocol: rename internally to match updated 02-wire-protocol.md 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-05-17 15:06:12 +09:30
Rusty Russell
06d2c19c41 test/test_protocol: make pretty(-ish) SVG diagrams. 
Could make them much prettier, but they're functional.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-05-17 15:02:08 +09:30
Rusty Russell
c710a64ccf Makefile: support for suppressing valgrind. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-05-17 13:49:54 +09:30
Rusty Russell
7f90d183da test/test_protocol: simulator for the updated wire-protocol BOLT. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-05-17 13:47:44 +09:30
Rusty Russell
35d1b13cde daemon: commit outstanding changes via timer. 
While useful for testing, it doesn't make sense to have an explicit commit
command; we should commit whenever there are outstanding changes.

We have a 10ms timer to allow limited batching, however.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-05-10 06:30:11 +09:30
Rusty Russell
4beaedfa49 daemon/test: clean up Makefile. 
This means mkae tells us directly what failed.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-05-06 16:22:47 +09:30
Rusty Russell
d6603adc2f daemon/test: test stealing. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-05-06 12:00:30 +09:30
Rusty Russell
623eec4068 daemon/test: test unilateral close. 
We use dev-disconnect to convince one node the other has disconnected
(but not vice versa), to get deterministic behaviour.  We do this with
one HTLC outstanding, to test the HTLC timeout path.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-05-04 16:14:22 +09:30
Rusty Russell
f29a6043d2 daemon: open-code handling of on-chain states. 
Once we see an on-chain tx, we ignore the state machine and handle it
as per the onchain.md draft.  This specifies a *resolution* for each
output, and we're done when they're irrevocable.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-05-04 16:14:22 +09:30
Rusty Russell
3f374d8d8b check-bolt: handle references to early-drafts too. 
Particularly for the onchain.md draft.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-05-04 16:03:04 +09:30
Rusty Russell
9eabab78ab utils: tal_hexstr() helper. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-05-03 11:28:49 +09:30
Rusty Russell
a150bd191a remove_dust: don't ever create dust outputs. 
This behavior will be specified in BOLT #3.

Closes: #14

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-05-03 11:28:49 +09:30
Rusty Russell
4bbb86ae30 daemon: clean up test dirs. 
Move final helpers out of test-cli/

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-05-03 11:27:56 +09:30
Rusty Russell
03a538ca02 check-bolt: check that comments in code match the specs. 
And fix the mistakes!

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-05-03 11:27:56 +09:30
Rusty Russell
5ba7692254 Makefile: fix config.h rebuilds in parallel. 
Occasionally make seems to rebuild this in parallel, so make sure to
never have a partially complete one.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-05-03 11:27:56 +09:30
Rusty Russell
e7b9a913a6 bitcoind: getrawblock helper. 
It turns out using the verbose=false parameter, you can get the raw block
from getblock.  Do that.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-04-24 19:40:29 +09:30
Rusty Russell
410fc3b272 misc: remove some unused functions. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-04-24 19:33:13 +09:30
Rusty Russell
6b956ea22a varint: new file. 
Move varint handling from tx.c and generalize it.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-04-12 13:07:03 +09:30
Rusty Russell
ed70b13041 bitcoin: add first unit test. 
Should grow from here.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-04-11 16:42:53 +09:30
Rusty Russell
f8796c261b Make BIP68 and CSV support the default. 
This has gone upstream into bitcoind, so enable it.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-04-11 16:35:29 +09:30
Rusty Russell
8104886503 Remove Alpha support. 
I had already disabled it, and this clears the decks for Segregated Witness
which gives us everything we want.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-04-11 16:32:43 +09:30
Rusty Russell
18a9e5bda2 daemon: Implement encryption as per BOLT #1. 
This uses libsodium (we could use openssl, but the required primitives
are only in 1.1.0 which is still in alpha).

It doesn't handle reconnections yet, either.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-03-16 16:06:17 +10:30
Rusty Russell
64e5ce1530 test: remove test_state_coverage 
We're going to change the protocol to send multiple changes at once, so
disable this compilation and testing for now.

We can revisit it afterwards once the protocol is stable again.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-03-15 17:07:31 +10:30
Rusty Russell
09358498cd Remove test-cli 
We're about to change the protocol again, and I don't want to do the
grunt work to update these.  They were useful for pre-build protocol
testing, though.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-03-08 10:37:15 +10:30
Rusty Russell
b280cab6b0 Makefile: clean daemon files with make clean. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-03-08 10:32:15 +10:30
Braydon Fuller
e0c4d40899 doc: add install notes 2016-02-24 23:59:33 -05:00
Rusty Russell
6750794667 Use #if instead of #ifdef (we already use -Wundef). 
This avoids embarassing typos in future.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-01-27 15:00:50 +10:30
Rusty Russell
1e93da5513 Really enable checklocktimeverify support. 
Next patch will make sure this never happens again.

Fixes: #18
Reported-by: Fabrice
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-01-27 14:52:30 +10:30
Rusty Russell
d3455e7c22 Add brief HACKING.md, and update name. 
Each release gets names by a new contributor: this one thanks to
Anthony Towns!

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-01-22 06:49:47 +10:30
Rusty Russell
b70c18a40e daemon: implement anchor watch timeout. 
We abort when this happens, but still worth testing.

This involves a refactor so we can allocate watches off a specific context,
for easy freeing when they're no longer wanted.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-01-22 06:45:28 +10:30
Rusty Russell
f5538bd1d2 daemon: test scripts. 
We comment out the peer_create_close_tx() abort for now, so we
can test.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-01-22 06:45:27 +10:30
Rusty Russell
378dadc371 daemon: configuration directory (default ~/.lightning). 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-01-22 06:41:48 +10:30
Rusty Russell
117cf6b02d daemon: add logging options. 
Particularly logging to file.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-01-22 06:41:47 +10:30
Rusty Russell
3e77c55a3b Makefile: add daemon source sanity checks. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-01-22 06:41:47 +10:30
Rusty Russell
dd35260ce8 daemon: first code. 
Logging code based heavily on pettycoin's.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-01-22 06:41:47 +10:30
Rusty Russell
caa27f1d93 names.h/names.c: wrappers to get name for states/inputs. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-01-22 06:41:46 +10:30
Rusty Russell
e6dfff3ba8 licensing: Make license explicit. 
Note that we're BSD-MIT but some of the ccan modules are different
licenses.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-01-22 06:41:46 +10:30
Rusty Russell
3a803eefbb bitcoin/tx: move bitcoin_tx_from_file() to test-cli, expose bitcoin_tx_from_hex() 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-01-22 06:41:46 +10:30
Rusty Russell
888389e625 ccan: update and add more. 
We need the following additional modules for the daemon:
	io, time, timer, pipecmd

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-01-22 06:41:45 +10:30
Rusty Russell
906a5e4a32 Move pkt.c into test-cli. 
We use cryptopkt for normal cases.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-01-22 06:41:45 +10:30
Rusty Russell
a38d0c985e Makefile: more fascist warnings. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-01-22 06:41:37 +10:30
Rusty Russell
4163935bbb ccan: import time module. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-01-22 06:38:09 +10:30
Rusty Russell
e97e8988f8 ccan: import isaac and dependencies. 
We could probably just use Openssl's RAND_pseudo_bytes, but this gives
a nice interface to get a number between 1 and N.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-01-22 06:38:09 +10:30
Rusty Russell
4795a4d46f Makefile: sanity check source and makefile 
This enforces the include order implemented by the previous patch, and
also make sure we haven't missed any headers.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-01-22 06:38:09 +10:30
Rusty Russell
4dafeba857 Makefile: depend on headers. 
A halfway house between the horror of dynamic generation and the fail of
making everything depend on every header.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-01-22 06:38:08 +10:30
Rusty Russell
ffe20fb2ae bitcoin: add OP_CHECKLOCKTIMEVERIFY support (BIP65) 
No need to use noops now that BIP65 is active.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-01-22 06:38:08 +10:30
Rusty Russell
aeedafc20f Switch to bitcoind by default. 
I haven't implemented getting transactions from alphad (it needs the values
for the inputs, too), so switch to bitcoind.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-01-22 06:38:08 +10:30
Rusty Russell
4b02c6f558 locktime: nice abstractions for absolute and relative locktimes. 
I got confused navigating these, especially since Alpha and Bitcoin
have diverged (BIP68 was proposed after Elements Alpha).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2016-01-22 06:38:08 +10:30
Rusty Russell
45e0ab11ff Merge branch 'onion' 2016-01-22 06:35:11 +10:30
Rusty Russell
6b2d844f2a bitcoin: use ccan/mem instead of rolling own check_mem function. 
Reported-by: John Newbery
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-10-26 21:06:23 +10:30
Anthony Towns
b66852f1ab Makefile: add python onion tests 2015-10-06 23:49:52 +10:00
Anthony Towns
2042e1cdb7 onion_key: generate multiple keys at once 2015-10-06 23:49:52 +10:00
Rusty Russell
ed46dd355d test_onion: split encode and decode, drive from cmdline. 
This lets us test interaction with python code, for example.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-10-06 12:03:53 +10:30
Rusty Russell
32a08ce6c5 test/onion_key: helper to generate deterministic key pairs. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-10-06 12:03:09 +10:30
Rusty Russell
f36ba8f8e1 Makefile: only erase protobuf and PDF files with maintainer-clean. 
Reported-by: Anthony Towns
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-09-30 16:39:02 +09:30
Rusty Russell
81d35294f4 test/test_onion: demo program to show onion routing crypto. 
We can make this more efficient, but this works for now.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-09-30 16:39:02 +09:30
Rusty Russell
e7856e6e69 Update libsecp to git@github.com:bitcoin/secp256k1.git 52fd03f 
We want the ecdh stuff for onion routing.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-09-30 16:37:21 +09:30
Rusty Russell
17f457568a Makefile: generate libsecpk1 properly. 
And clean it.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-09-30 10:54:54 +09:30
Rusty Russell
454a3867e5 BIP68 support (nSequence enforcement) 
The latest version of the BIP doesn't use inversion, but does use
bitshifts.

It also uncovered a bug in the test scripts: the block timestamps
creep forward when we generate large numbers of blocks (UpdateTime
insists it be > GetMedianTimePast() so it's valid).  We need to take
this into account when waiting for the median to move (reduced it from
60 to 30 seconds, since that adds about 14 seconds).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-09-30 10:54:11 +09:30
Rusty Russell
845d09ce68 check: simple Makefile target. 
This makes it much easier to run all the test scripts.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-09-29 17:02:02 +09:30
Rusty Russell
786bef9002 test/test_state_coverage: output dot format. 
Good for documentation, plus impressive with all the error states...

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-09-25 11:51:18 +09:30
Rusty Russell
1556315f2e test_state_coverage: simple exhaustive coverage test for state machine. 
Makes sure that we visit every state.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-09-25 11:51:18 +09:30
Rusty Russell
5730b118f1 Some more ccan objs. 
These are LGPL, but only used for tests.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-09-25 11:51:18 +09:30
Rusty Russell
669479b671 gen_state_names.h: printable names for state_types enums. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-09-25 11:51:18 +09:30
Rusty Russell
8af4619406 Makefile: neaten 
Reduces gratuitous patch conflicts in future.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-09-24 15:03:20 +09:30
Rusty Russell
1cb147c5b8 Version number, name, and build details. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-08-08 20:45:49 +09:30
Rusty Russell
fcbba0280d test-cli/create-htlc-spend-tx: new util. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-08-07 16:20:45 +09:30
Rusty Russell
b5ff69e236 test-cli/update-channel-htlc-remove: new util. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-08-07 14:15:01 +09:30
Rusty Russell
9b0ed51f2b test-cli/update-channel-htlc-complete: new util. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-08-07 14:14:46 +09:30
Rusty Russell
5778b004dd test-cli/update-channel-htlc: new util. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-08-07 14:13:35 +09:30
Rusty Russell
cf3433a0ad script: add OP_CHECKLOCKTIMEVERIFY. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-08-07 12:45:30 +09:30
Rusty Russell
eac3af06f1 protocol: switch to single-funder anchor model. 
Most complex change was gather_updates(), which handles all the "what
is the current state of the channel" logic for our dumb test utils.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-29 16:14:28 +09:30
Rusty Russell
ee3af28980 test-cli/txid-of: simple helper to get txid. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-24 16:00:10 +09:30
Rusty Russell
bde07aa6a7 Makefile: fix make clean, depend on bitcoin/ headers. 
Didn't remove program object files, nor depend on all headers.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-24 16:00:10 +09:30
Rusty Russell
e4921b9bc6 Add documentation. 
First up, a draft of a paper showing the differences between the LN draft
and this.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-18 10:46:53 +09:30
Rusty Russell
8f64eb90af Switch over to CCAN's ripemd160. 
Avoids handing naked u8 arrays around, too.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-09 15:43:36 +09:30
Rusty Russell
ec399e13a4 Makefile: update-ccan: new target. 
Hacky, but syncs up ccan repository.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-09 15:25:09 +09:30
Rusty Russell
a663dc322c Remove signature leaking. 
Alpha has segregated witnesses, so txid doesn't include the inputs.
That means we can create the first commit transaction before we sign
the anchor tx.

Bitcoin will need to do this differently: presumbly via new sipops
(a OP_CHECKSIG2VERIFY I imagine).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-03 14:00:54 +09:30
Rusty Russell
f510e29e22 alpha: switch over to Elements Alpha by default. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-03 13:36:25 +09:30
Rusty Russell
62a002c860 script: make DER for signature encoding optional. 
Alpha does the sane thing, places signatures raw.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-01 16:27:52 +09:30
Rusty Russell
faae91f3fc Schnorr signature support. 
This variation is used by alpha.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-01 16:27:52 +09:30
Rusty Russell
d20ddb5a90 Use libsecp256k1 instead of openssl for crypto. 
We still use openssl for bignums (base58) and for ripemd.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-01 16:27:52 +09:30
Rusty Russell
5a79ef9502 Import secp256k1 (schnorr version) 
Imported from: git@github.com:sipa/secp256k1.git schnorr3 (0ab0b47)

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-01 16:27:52 +09:30
Rusty Russell
20624c049f tx: prepare for Elements Alpha. 
They sign, hash, and serialize differently.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-01 16:27:45 +09:30
Rusty Russell
602117e8bb Add valgrind memcheck helpers. 
Otherwise valgrind tells you when you test a hash; you want to
know if you hash uninitialized memory long before that.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-24 16:15:34 +09:30
Rusty Russell
c91d2b5206 ccan: add local copy. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-12 13:29:06 +09:30
Rusty Russell
a0b621689e TAGS: Improve support. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-12 12:44:45 +09:30
Rusty Russell
4e8eda47a1 Move hacky command line utils out to test-cli subdir. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-12 12:35:42 +09:30
Rusty Russell
442f321585 Move protobuf<->bitcoin converters out of bitcoin/ 
They're lightning-specific.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-12 12:35:42 +09:30
Rusty Russell
612d713470 Move bitcoin stuff into bitcoin subdir. 
It's not very interesting if you're looking for LN code.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-12 12:35:42 +09:30
Rusty Russell
2d714f5ad4 create-commit-tx: create a commit tx. 
Required for unilateral close.  Also lets us test stealing funds
from a revoked transaction.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-12 12:35:26 +09:30
Rusty Russell
ed3f0115d6 protocol: fix horribly thinko, keep own secrets. 
I had each side using the other side's hash secret.  That's a very
dumb idea, since it means you can steal from a unilateral close!

A's secret applies to A's commit transaction: it needs the
secret and B's final signature to steal funds, and that should
never happen (since A doesn't have the B's final signature, and
once A has given B the secret, they never broadcast the commit tx).

This makes the update a 4 step dance, since you need the new
revocation hash to make the other side's TX to sign.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-10 21:39:45 +09:30
Rusty Russell
3fef1584e5 update-channel-complete: final step in channel update. 
(note: I didn't bother writing the code to check the sig on this).

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-09 14:13:27 +09:30
Rusty Russell
3957f1e1c1 update-channel-accept: accept the channel update. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-09 14:13:27 +09:30
Rusty Russell
d51f6372aa update-channel: prepare a new tx with modified amounts. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-09 14:13:27 +09:30
Rusty Russell
ecb39efed1 find_p2sh_out: extract helper. 
Really only for our silly little utils.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-09 14:13:21 +09:30
Rusty Russell
7175d73573 create-close-tx: create a mutual close tx from the close sigs. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-08 15:08:10 +09:30
Rusty Russell
38f7a23064 close-channel: create message to mutually close channel. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-08 14:46:41 +09:30
Rusty Russell
16baa1dae9 create-commit-spend-tx: spend the commit tx (after timeout) 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-08 09:29:09 +09:30
Rusty Russell
fc8552318a opt_bits: parsing routines for 'bits' == 100 satoshi. 
Also fix open-channel usage message.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-07 13:52:04 +09:30
Rusty Russell
126192a842 create-steal-tx: get my money back! 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-05 17:22:54 +09:30
Rusty Russell
0742e5356f get-anchor-depth: simple helper to get min_confirms from OpenChannel packet 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-05 11:09:29 +09:30
Rusty Russell
33bbd38691 Makefile: cleanup and generalize 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-05 11:05:05 +09:30
Rusty Russell
623c6562af Makefile: add TAGS target. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-04 15:46:39 +09:30
Rusty Russell
617d21eb43 check-anchor-scriptsigs: dump out anchor tx if scriptsigs make expected tx. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-04 14:15:51 +09:30
Rusty Russell
67f98fe6b6 Rename "anchor sig" to "anchor scriptsigs" to be clearer. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-04 12:10:01 +09:30
Rusty Russell
c291d19af6 Add check-commit-sig. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-02 14:28:59 +09:30
Rusty Russell
07c7214edb Explicit pubkey structure. 
This checks that the protobuf is the right form, also handles uncompressed
keys (though you shouldn't be using those any more, should you?)

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-02 11:53:59 +09:30
Rusty Russell
c04d20e019 commit_tx: new file containing logic to create initial commitment transaction. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-05-30 20:44:00 +09:30
Rusty Russell
bf38ca052e open-commit-sig: create signature for commit tx. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-05-30 20:12:14 +09:30
Rusty Russell
63986e5b2d Rename perturb to permute. 
Perturb is a bit stretched for this, permute is better.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-05-30 20:12:14 +09:30
Rusty Russell
f43cdf085a Move anchor creation out into its own file. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-05-30 20:12:14 +09:30
Rusty Russell
10133575b9 leak-anchor-sigs: the horrible hack until we have normalized txs. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-05-30 20:12:14 +09:30
Rusty Russell
670670f138 open-anchor-sig, many fixes for open-channel. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-05-29 10:51:16 +09:30
Rusty Russell
81ac81e699 Rename openchannel to open-channel. 
Since I'm about to write create-anchor, which definitely needs a separator.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-05-26 14:14:19 +09:30
Rusty Russell
1c4fdce514 Initial silly cmdline util to create an openchannel packet. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-05-26 14:08:38 +09:30