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540 Commits

Author SHA1 Message Date
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