mirror of
https://github.com/ElementsProject/lightning.git
synced 2025-01-01 03:24:41 +01:00
7401b26824
Before: Ten builds, laptop -j5, no ccache: ``` real 0m36.686000-38.956000(38.608+/-0.65)s user 2m32.864000-42.253000(40.7545+/-2.7)s sys 0m16.618000-18.316000(17.8531+/-0.48)s ``` Ten builds, laptop -j5, ccache (warm): ``` real 0m8.212000-8.577000(8.39989+/-0.13)s user 0m12.731000-13.212000(12.9751+/-0.17)s sys 0m3.697000-3.902000(3.83722+/-0.064)s ``` After: Ten builds, laptop -j5, no ccache: 8% faster ``` real 0m33.802000-35.773000(35.468+/-0.54)s user 2m19.073000-27.754000(26.2542+/-2.3)s sys 0m15.784000-17.173000(16.7165+/-0.37)s ``` Ten builds, laptop -j5, ccache (warm): 1% faster ``` real 0m8.200000-8.485000(8.30138+/-0.097)s user 0m12.485000-13.100000(12.7344+/-0.19)s sys 0m3.702000-3.889000(3.78787+/-0.056)s ``` Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
89 lines
2.6 KiB
C
89 lines
2.6 KiB
C
#include "config.h"
|
|
#include <assert.h>
|
|
#include <tests/fuzz/libfuzz.h>
|
|
|
|
#include <bitcoin/pubkey.h>
|
|
#include <bitcoin/chainparams.h>
|
|
#include <bitcoin/script.h>
|
|
#include <common/close_tx.h>
|
|
#include <common/setup.h>
|
|
#include <common/utils.h>
|
|
#include <wire/wire.h>
|
|
|
|
void init(int *argc, char ***argv)
|
|
{
|
|
common_setup("fuzzer");
|
|
chainparams = chainparams_for_network("bitcoin");
|
|
}
|
|
|
|
void run(const uint8_t *data, size_t size)
|
|
{
|
|
const uint8_t *wire_ptr;
|
|
size_t wire_max, min_size, script_size;
|
|
struct bitcoin_txid txid;
|
|
uint32_t vout;
|
|
struct amount_sat funding, to_us, to_them, dust_limit, max;
|
|
const uint8_t *our_script, *their_script, *funding_script;
|
|
struct pubkey *pk1, *pk2;
|
|
|
|
/* create_close_tx wants:
|
|
* - 3 scripts: 3 * N bytes
|
|
* - 1 txid: 32 bytes
|
|
* - 1 u32: 4 bytes
|
|
* - 4 amount_sat: 4 * 8 bytes
|
|
*
|
|
* Since both output scripts size are not restricted, we also try
|
|
* to vary their length.
|
|
* Therefore, we allocate the entire remaining bytes to scripts.
|
|
*/
|
|
min_size = 8 * 3 + 4 + 32;
|
|
if (size < min_size + 2)
|
|
return;
|
|
|
|
script_size = (size - min_size) / 2;
|
|
wire_ptr = data;
|
|
|
|
wire_max = 8;
|
|
to_us = fromwire_amount_sat(&wire_ptr, &wire_max);
|
|
assert(wire_ptr);
|
|
wire_max = 8;
|
|
to_them = fromwire_amount_sat(&wire_ptr, &wire_max);
|
|
assert(wire_ptr);
|
|
wire_max = 8;
|
|
dust_limit = fromwire_amount_sat(&wire_ptr, &wire_max);
|
|
/* The funding must be > to_us + to_them (TODO: we could simulate some fees) .. */
|
|
if (!(amount_sat_add(&funding, to_us, to_them)))
|
|
return;
|
|
/* .. And < max_btc as we assert it's not nonsensical! */
|
|
max = AMOUNT_SAT((u32)WALLY_SATOSHI_PER_BTC * WALLY_BTC_MAX);
|
|
if (amount_sat_greater(funding, max)) {
|
|
funding = max;
|
|
to_us = amount_sat_div(max, 2);
|
|
to_them = amount_sat_div(max, 2);
|
|
}
|
|
|
|
wire_max = 4;
|
|
vout = fromwire_u32(&wire_ptr, &wire_max);
|
|
wire_max = 32;
|
|
fromwire_bitcoin_txid(&wire_ptr, &wire_max, &txid);
|
|
|
|
our_script = tal_dup_arr(tmpctx, const uint8_t, wire_ptr, script_size, 0);
|
|
their_script = tal_dup_arr(tmpctx, const uint8_t, wire_ptr + script_size,
|
|
script_size, 0);
|
|
|
|
/* We assert it's valid, so we can't throw garbage at the funding script.. */
|
|
pk1 = tal(tmpctx, struct pubkey);
|
|
pk2 = tal(tmpctx, struct pubkey);
|
|
pubkey_from_hexstr("034fede2c619f647fe7c01d40ae22e4c285291ca2ffb47937bbfb7d6e8285a081f",
|
|
PUBKEY_CMPR_LEN, pk1);
|
|
pubkey_from_hexstr("028dfe31019dd61fa04c76ad065410e5d063ac2949c04c14b214c1b363e517452f",
|
|
PUBKEY_CMPR_LEN, pk2);
|
|
funding_script = bitcoin_redeem_2of2(tmpctx, pk1, pk2);
|
|
|
|
create_close_tx(tmpctx, chainparams, our_script,
|
|
their_script, funding_script, &txid,
|
|
vout, funding, to_us, to_them, dust_limit);
|
|
|
|
clean_tmpctx();
|
|
}
|