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63 Commits

Author SHA1 Message Date
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
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