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devtools/mkquery: tool to generate gossip query messages.

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These helpers would be better autogenerated in python, perhaps as part
of cdecker's pyln package?

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell
2019-09-30 11:05:17 +09:30
parent 15612d269a
commit 72aa83026a
2 changed files with 92 additions and 1 deletions
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devtools/mkquery.c Normal file
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/* Generate various query messages. */
#include "config.h"
#include <assert.h>
#include <bitcoin/address.h>
#include <bitcoin/script.h>
#include <bitcoin/short_channel_id.h>
#include <bitcoin/tx.h>
#include <ccan/crc32c/crc32c.h>
#include <ccan/err/err.h>
#include <ccan/str/hex/hex.h>
#include <common/gossip_constants.h>
#include <common/utils.h>
#include <inttypes.h>
#include <wire/gen_peer_wire.h>
#include <stdio.h>
static void usage(void)
{
errx(1, "Usage: mkquery gossip_timestamp_filter <chain_hash> <first_timestamp> <timestamp_range> OR\n"
" mkquery query_channel_range <chain_hash> <first_blocknum> <number_of_blocks> [<query_option_flags>] OR\n"
" mkquery query_short_channel_ids <chain_hash> <encoded-scids> [query-flags-encoding query-flags]");
}
int main(int argc, char *argv[])
{
struct bitcoin_blkid chainhash;
const tal_t *ctx = tal(NULL, char);
const u8 *msg;
setup_locale();
secp256k1_ctx = secp256k1_context_create(SECP256K1_CONTEXT_VERIFY |
SECP256K1_CONTEXT_SIGN);
if (argc < 3)
usage();
if (!hex_decode(argv[2], strlen(argv[2]), &chainhash, sizeof(chainhash)))
errx(1, "Parsing chainhash");
if (streq(argv[1], "gossip_timestamp_filter")) {
if (argc != 5)
usage();
msg = towire_gossip_timestamp_filter(ctx, &chainhash,
strtol(argv[3], NULL, 0),
strtol(argv[4], NULL, 0));
} else if (streq(argv[1], "query_channel_range")) {
struct tlv_query_channel_range_tlvs *tlvs;
if (argc == 5)
tlvs = NULL;
else if (argc == 6) {
tlvs = tlv_query_channel_range_tlvs_new(ctx);
tlvs->query_option = tal(tlvs, struct tlv_query_channel_range_tlvs_query_option);
tlvs->query_option->query_option_flags
= strtol(argv[5], NULL, 0);
} else
usage();
msg = towire_query_channel_range(ctx, &chainhash,
strtol(argv[3], NULL, 0),
strtol(argv[4], NULL, 0),
tlvs);
} else if (streq(argv[1], "query_short_channel_ids")) {
struct tlv_query_short_channel_ids_tlvs *tlvs;
u8 *encoded;
if (argc == 4)
tlvs = NULL;
else if (argc == 6) {
tlvs = tlv_query_short_channel_ids_tlvs_new(ctx);
tlvs->query_flags = tal(tlvs, struct tlv_query_short_channel_ids_tlvs_query_flags);
tlvs->query_flags->encoding_type = strtol(argv[4], NULL, 0);
tlvs->query_flags->encoded_query_flags = tal_hexdata(tlvs->query_flags,
argv[5], strlen(argv[5]));
if (!tlvs->query_flags->encoded_query_flags)
usage();
} else
usage();
encoded = tal_hexdata(ctx, argv[3], strlen(argv[3]));
if (!encoded)
usage();
msg = towire_query_short_channel_ids(ctx, &chainhash, encoded, tlvs);
} else
usage();
printf("%s\n", tal_hex(ctx, msg));
tal_free(msg);
return 0;
}