mirror of
https://github.com/ElementsProject/lightning.git
synced 2024-11-19 09:54:16 +01:00
06a54606a3
We should actually be including this (as it may define _GNU_SOURCE etc) before any system headers. But where we include <assert.h> we often didn't, because check-includes would complain that the headers included it too. Weaken that check, and include config.h in C files before assert.h. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
76 lines
2.0 KiB
C
76 lines
2.0 KiB
C
#include "config.h"
|
|
#include <assert.h>
|
|
#include <ccan/array_size/array_size.h>
|
|
#include <ccan/mem/mem.h>
|
|
#include <ccan/str/hex/hex.h>
|
|
#include <common/node_id.h>
|
|
#include <common/type_to_string.h>
|
|
#include <common/utils.h>
|
|
#include <wire/wire.h>
|
|
|
|
/* Convert from pubkey to compressed pubkey. */
|
|
void node_id_from_pubkey(struct node_id *id, const struct pubkey *key)
|
|
{
|
|
size_t outlen = ARRAY_SIZE(id->k);
|
|
if (!secp256k1_ec_pubkey_serialize(secp256k1_ctx, id->k, &outlen,
|
|
&key->pubkey,
|
|
SECP256K1_EC_COMPRESSED))
|
|
abort();
|
|
}
|
|
|
|
WARN_UNUSED_RESULT
|
|
bool pubkey_from_node_id(struct pubkey *key, const struct node_id *id)
|
|
{
|
|
return secp256k1_ec_pubkey_parse(secp256k1_ctx, &key->pubkey,
|
|
memcheck(id->k, sizeof(id->k)),
|
|
sizeof(id->k));
|
|
}
|
|
|
|
WARN_UNUSED_RESULT
|
|
bool pubkey32_from_node_id(struct pubkey32 *key, const struct node_id *id)
|
|
{
|
|
struct pubkey k;
|
|
if (!pubkey_from_node_id(&k, id))
|
|
return false;
|
|
return secp256k1_xonly_pubkey_from_pubkey(secp256k1_ctx, &key->pubkey,
|
|
NULL, &k.pubkey) == 1;
|
|
}
|
|
|
|
/* It's valid if we can convert to a real pubkey. */
|
|
bool node_id_valid(const struct node_id *id)
|
|
{
|
|
struct pubkey key;
|
|
return pubkey_from_node_id(&key, id);
|
|
}
|
|
|
|
/* Convert to hex string of SEC1 encoding */
|
|
char *node_id_to_hexstr(const tal_t *ctx, const struct node_id *id)
|
|
{
|
|
return tal_hexstr(ctx, id->k, sizeof(id->k));
|
|
}
|
|
REGISTER_TYPE_TO_STRING(node_id, node_id_to_hexstr);
|
|
|
|
/* Convert from hex string of SEC1 encoding */
|
|
bool node_id_from_hexstr(const char *str, size_t slen, struct node_id *id)
|
|
{
|
|
return hex_decode(str, slen, id->k, sizeof(id->k))
|
|
&& node_id_valid(id);
|
|
}
|
|
|
|
int node_id_cmp(const struct node_id *a, const struct node_id *b)
|
|
{
|
|
return memcmp(a->k, b->k, sizeof(a->k));
|
|
}
|
|
|
|
void fromwire_node_id(const u8 **cursor, size_t *max, struct node_id *id)
|
|
{
|
|
fromwire(cursor, max, &id->k, sizeof(id->k));
|
|
}
|
|
|
|
void towire_node_id(u8 **pptr, const struct node_id *id)
|
|
{
|
|
/* Cheap sanity check */
|
|
assert(id->k[0] == 0x2 || id->k[0] == 0x3);
|
|
towire(pptr, id->k, sizeof(id->k));
|
|
}
|