Commit Graph

72 Commits

Author SHA1 Message Date
Rusty Russell
587cda0ab8 tx: segregated witness encoding/decoding support.
As described in BIP144.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-04-11 16:39:53 +09:30
Rusty Russell
a084bb2160 bitcoin/tx: make sure we don't try to do a huge allocation on bad input tx.
This could only happen via our RPC interface (bitcoind should not give
us bad txs!) but it's better to be robust.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-04-11 16:36:29 +09:30
Rusty Russell
e44a7dc2d5 bitcoin/tx: remove style arg.
Without Alpha, it's superfluous.  We're about to add segwit support,
but linearization requires a more powerful approach, and segwit
signature checking is completely different and really deserves its
own function.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-04-11 16:33:29 +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
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
3374ddd2a6 bitcoin: use a length arg to bitcoin_tx_from_hex
Our json parser doesn't use nul-terminated strings.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:41:47 +10:30
Rusty Russell
7cf786f1f4 pull_bitcoin_tx: allocate outputs off tx itself.
All the members of the transaction should be allocated off the
transaction, as they have the same lifetime.

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
9ebbe16b1e source cleanup: sort include lines into alpha order
This makes merging easier in future.

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
4c42930940 bitcoin/tx, protobuf_convert: support BIP68 as implemented.
The format for both the nSequence field and the stack arg for
OP_CHECKSEQUENCEVERIFY is either:

  Time-relative:	[Bit 22 = 1] 00000 <time-shifted-by-9>
  Block-relative:	[Bit 22 = 0] 00000 <number of blocks>

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2016-01-22 06:38:08 +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
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
c4d5a85b4e protocol: remove tx_version field.
It's trivial to add later as an optional field.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-07-29 12:00:49 +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
6a5ba591ee signature: match alpha hashing bug for multiple inputs.
https://github.com/ElementsProject/elements/issues/37

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-07-24 16:00:10 +09:30
Rusty Russell
66b1df4036 tx: locktime should be 0.
It doesn't matter until we start setting sequence numbers properly,
so hasn't been noticed until now.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-07-03 10:44:44 +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
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
ef9463f6b1 Sort include lines (ignoring hacky cli test utils).
Put ccan first, openssl next, then standard headers, then locals.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2015-06-12 12:41:28 +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