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#include <assert.h>
#include <fcntl.h>
#include <stdint.h>
#include <string.h>
#include <tests/fuzz/libfuzz.h>
#include <bitcoin/pubkey.h>
#include <bitcoin/chainparams.h>
#include <bitcoin/script.h>
#include <bitcoin/tx.h>
#include <ccan/tal/tal.h>
#include <common/amount.h>
#include <common/fee_states.h>
#include <common/initial_channel.h>
#include <common/setup.h>
#include <common/status.h>
#include <common/utils.h>
#include <stdio.h>
#include <wire/wire.h>
void init(int *argc, char ***argv)
{
common_setup("fuzzer");
int devnull = open("/dev/null", O_WRONLY);
status_setup_sync(devnull);
chainparams = chainparams_for_network("bitcoin");
}
void run(const uint8_t *data, size_t size)
{
struct channel_id cid;
struct bitcoin_txid funding_txid;
u32 funding_txout, minimum_depth;
struct amount_sat funding, max;
struct amount_msat local_msatoshi;
u32 feerate_per_kw;
struct channel_config local, remote;
struct basepoints local_basepoints, remote_basepoints;
struct pubkey local_funding_pubkey, remote_funding_pubkey;
bool option_static_remotekey, option_anchor_outputs;
struct channel *channel;
fromwire_channel_id(&data, &size, &cid);
fromwire_bitcoin_txid(&data, &size, &funding_txid);
funding_txout = fromwire_u32(&data, &size);
minimum_depth = fromwire_u32(&data, &size);
funding = fromwire_amount_sat(&data, &size);
local_msatoshi = fromwire_amount_msat(&data, &size);
max = AMOUNT_SAT((u32)WALLY_SATOSHI_PER_BTC * WALLY_BTC_MAX);
if (amount_sat_greater(funding, max))
funding = max;
feerate_per_kw = fromwire_u32(&data, &size);
fromwire_channel_config(&data, &size, &local);
fromwire_channel_config(&data, &size, &remote);
fromwire_basepoints(&data, &size, &local_basepoints);
fromwire_basepoints(&data, &size, &remote_basepoints);
fromwire_pubkey(&data, &size, &local_funding_pubkey);
fromwire_pubkey(&data, &size, &remote_funding_pubkey);
option_anchor_outputs = fromwire_bool(&data, &size);
option_static_remotekey = option_anchor_outputs || fromwire_bool(&data, &size);
/* TODO: determine if it makes sense to check at each step for libfuzzer
* to deduce pertinent inputs */
if (!data || !size)
return;
for (enum side opener = 0; opener < NUM_SIDES; opener++) {
channel = new_initial_channel(tmpctx, &cid, &funding_txid, funding_txout,
minimum_depth, funding, local_msatoshi,
take(new_fee_states(NULL, opener, &feerate_per_kw)),
&local, &remote, &local_basepoints,
&remote_basepoints, &local_funding_pubkey,
&remote_funding_pubkey, option_static_remotekey,
option_anchor_outputs, opener);
/* TODO: make initial_channel_tx() work with ASAN.. */
}
clean_tmpctx();
}