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845d09ce68
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62 Commits

Author SHA1 Message Date
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
31459d6cd2 protocol: rename update_complete_htlc to update_fulfill_htlc. 
Complete was an overloaded word.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-09-25 11:51:18 +09:30
Rusty Russell
f0cab4e74b gather_updates: fix rebase error. 
Didn't update amount field in d00eeded9f.
Didn't compile test either :(

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-09-25 11:50:24 +09:30
Rusty Russell
d00eeded9f protocol: split message update_remove_htlc into update_timedout_htlc and update_routefail_htlc, remove update_remove_htlc_delay. 
For the moment, there's no way to remove an in-progress HTLC before
it's timed out.  The other side can remove it with a routefail, but
you can't push for it to be removed.

We may add that later, but by definition it's only a polited request, and
normally we should rely on timeouts.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-09-24 15:02:49 +09:30
Rusty Russell
5bc22f0368 protocol: increase HTLC precision to 1/1000 satoshi. 
This gets truncated for on-chain transactions (thus, rounding may
contribute to fees).

This also means we currently have an upper bound of 0.04 BTC per HTLC;
this can be increased later if required.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-09-24 15:00:47 +09:30
Rusty Russell
58a62e782d bitcoin/script: don't pass value for HTLC script. 
We don't need it.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-09-24 14:56:01 +09:30
Rusty Russell
186736050f test-cli: fix alpha case. 
The output of grep confuses the scripts.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-09-24 14:41:55 +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
3311580c62 scripts/test.sh: fix bitcoin case. 
Now we use locktime, bitcoin needs delay too.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-08-08 15:02:50 +09:30
Rusty Russell
0b33da08c1 scripts: auto-detect alpha vs bitcoin 
A bit hacky, but saves editing two places.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-08-08 15:02:43 +09:30
Rusty Russell
6cea21750d HOWTO-USE.md: Just refer to test scripts. 
This has fallen behind.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-08-08 15:01:34 +09:30
Rusty Russell
3b214479ae test-cli/scripts/test.sh: basic HTLC spending test. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-08-07 16:20:52 +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
bafc93886f test-cli/scripts/test.sh: basic HTLC creation test. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-08-07 14:15:05 +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
106c447d17 gather_updates: handle HTLC updates. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-08-07 14:13:35 +09:30
Rusty Russell
769f9f1cc5 gather_updates: extract some update logic into update_rhash. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-08-07 14:13:29 +09:30
Rusty Russell
a09c0a9fa7 funding: take into account HTLC add/remove. 
Enhance funding_delta() to have an HTLC delta as well as an A->B delta.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-08-07 12:45:30 +09:30
Rusty Russell
9a0163ec85 proto_to_locktime: abs and relative locktime handlers. 
Our current proto_to_locktime actually handles relative locktimes,
and HTLCs use absolute.  Fix that.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-08-07 12:45:30 +09:30
Rusty Russell
7f21695a63 protocol: rename locktime fields to "delay" and "expiry" 
For open transactions, locktime is a delay we require on the other
side's to-self commit transaction outputs to ensure we can cut them
off if necessary.

For HTLCs, it's an absolute expiry time.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-08-07 12:45:30 +09:30
Rusty Russell
a4dfe3ad72 channel_state: encapsulate funding of channel in one place. 
This shows where funds are going at any time (fees vs to each side).
funding.c is mainly rewritten, and should be clearer now.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-08-07 12:45:30 +09:30
Rusty Russell
81bced330a protocol: move locktime into its own message type. 
We're going to want this for HTLC times, too.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-08-07 12:45:30 +09:30
Rusty Russell
142e822342 test-cli/update-channel-signature: remove debugging message. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-08-05 16:54:53 +09:30
Rusty Russell
a0fc4f8a79 Update .gitignore. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-08-03 16:29:35 +09:30
Rusty Russell
b72ab56312 test-cli/open-anchor.c: add missing file. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-08-03 16:24:23 +09:30
Rusty Russell
de051f0df9 protocol: add close fee logic. 
The closer proposes the fee.  This is simple, at least.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-29 16:17:08 +09:30
Rusty Russell
3260fb2ed1 protocol: add commitment fee logic. 
Both sides elect a commitment fee, and the lowest is chosen.  That means
you can't game the other side (but if you offer too low, then can error
out of course).

Fees are split 50-50 if possible: originally the whole fee has to be
paid by the (single) funder.  Neither side can withdraw funds which
would make them unable to pay fees.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-29 16:16:24 +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
2255cb749d protocol: move commitment key to open_channel message. 
And rename final to final_key to be clearer.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-29 12:00:50 +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
114161a6a5 test-cli/scripts/test.sh: send_after_delay() 
Extract and generalize: we're about to get more.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-24 16:00:10 +09:30
Rusty Russell
aa79887d79 script: use the normalized delay script form for commit output. 
As documented in the paper; it's also two bytes shorter, and allows
us to use the exact same script for three cases.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-24 16:00:10 +09:30
Rusty Russell
d053181b0b script: add standard routines for secret-or-timedelay outputs. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-24 16:00:10 +09:30
Rusty Russell
8a4246cb36 permute: use BIP69 order. 
It's a canonical ordering, rather than a random shuffle.  Far simpler.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-20 14:07:44 +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
69b2690ecb HOWTO-USE.md: use alpha instead of bitcoind for examples. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-03 13:39:27 +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
c660629760 test.sh: (alpha) make sure that spending tx fails too soon, succeeds after delay. 
This only makes sense when we have CSV support.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-03 10:47:29 +09:30
Rusty Russell
4011f7ae7c create-commit-spend-tx: set alpha fields, and input locktime. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-03 10:45:43 +09:30
Rusty Russell
20bb6c65aa protocol fix: use locktime from *other* side. 
Which emerged clearly when setting one side's locktime differently than
the other.

Each side specifies the (minimum) time they need to notice a fraud attempt:
this constrains the *other* side.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-03 10:44:49 +09:30
Rusty Russell
1075264c66 close_tx: initialize fee and input amount fields. 
Required for alpha.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-01 16:55:11 +09:30
Rusty Russell
90e4160862 test.sh: handle appended amounts in transactions. 
cut -d: -f1 gets just the transactions, or passed through if no ":".

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-01 16:55:11 +09:30
Rusty Russell
ae31431168 tx: centralize transaction writing, append amounts for alpha. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-01 16:55:11 +09:30
Rusty Russell
5dc9cd16f9 create-steal-tx: actually output the steal tx, not the commit tx! 
... Which reveals it wasn't paying a fee.  So update fix that, and
initialize the alpha tx fields while we're there.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-07-01 16:55:03 +09:30
Rusty Russell
9851436d4d test.sh: restore --steal and --unilateral options 
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
27e7c7b986 scripts/setup.sh: setup helper script. 
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-30 12:58:49 +09:30
Rusty Russell
783aa35aa6 Make test.sh inputs script arguments. 
Hardcoding my defaults isn't useful.  Even for me.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
 2015-06-30 12:54:48 +09:30