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#include "bitcoin/locktime.h"
#include "bitcoin/preimage.h"
#include "bitcoin/pubkey.h"
#include "bitcoin/signature.h"
#include "protobuf_convert.h"
#include "type_to_string.h"
#include "utils.h"
#include <ccan/crypto/sha256/sha256.h>
Signature *signature_to_proto(const tal_t *ctx, const secp256k1_ecdsa_signature *sig)
{
u8 compact[64];
Signature *pb = tal(ctx, Signature);
signature__init(pb);
assert(sig_valid(sig));
secp256k1_ecdsa_signature_serialize_compact(secp256k1_ctx,
compact, sig);
/* Kill me now... */
memcpy(&pb->r1, compact, 8);
memcpy(&pb->r2, compact + 8, 8);
memcpy(&pb->r3, compact + 16, 8);
memcpy(&pb->r4, compact + 24, 8);
memcpy(&pb->s1, compact + 32, 8);
memcpy(&pb->s2, compact + 40, 8);
memcpy(&pb->s3, compact + 48, 8);
memcpy(&pb->s4, compact + 56, 8);
return pb;
}
bool proto_to_signature(const Signature *pb, secp256k1_ecdsa_signature *sig)
{
u8 compact[64];
/* Kill me again. */
memcpy(compact, &pb->r1, 8);
memcpy(compact + 8, &pb->r2, 8);
memcpy(compact + 16, &pb->r3, 8);
memcpy(compact + 24, &pb->r4, 8);
memcpy(compact + 32, &pb->s1, 8);
memcpy(compact + 40, &pb->s2, 8);
memcpy(compact + 48, &pb->s3, 8);
memcpy(compact + 56, &pb->s4, 8);
if (secp256k1_ecdsa_signature_parse_compact(secp256k1_ctx,
sig, compact)
!= 1)
return false;
return sig_valid(sig);
}
BitcoinPubkey *pubkey_to_proto(const tal_t *ctx, const struct pubkey *key)
{
BitcoinPubkey *p = tal(ctx, BitcoinPubkey);
bitcoin_pubkey__init(p);
p->key.len = PUBKEY_DER_LEN;
p->key.data = tal_arr(p, u8, p->key.len);
pubkey_to_der(p->key.data, key);
return p;
}
bool proto_to_pubkey(const BitcoinPubkey *pb, struct pubkey *key)
{
return pubkey_from_der(pb->key.data, pb->key.len, key);
}
Sha256Hash *sha256_to_proto(const tal_t *ctx, const struct sha256 *hash)
{
Sha256Hash *h = tal(ctx, Sha256Hash);
sha256_hash__init(h);
/* Kill me now... */
memcpy(&h->a, hash->u.u8, 8);
memcpy(&h->b, hash->u.u8 + 8, 8);
memcpy(&h->c, hash->u.u8 + 16, 8);
memcpy(&h->d, hash->u.u8 + 24, 8);
return h;
}
void proto_to_sha256(const Sha256Hash *pb, struct sha256 *hash)
{
/* Kill me again. */
memcpy(hash->u.u8, &pb->a, 8);
memcpy(hash->u.u8 + 8, &pb->b, 8);
memcpy(hash->u.u8 + 16, &pb->c, 8);
memcpy(hash->u.u8 + 24, &pb->d, 8);
}
Preimage *preimage_to_proto(const tal_t *ctx, const struct preimage *r)
{
Preimage *pb = tal(ctx, Preimage);
preimage__init(pb);
/* Kill me now... */
memcpy(&pb->a, r->r, 8);
memcpy(&pb->b, r->r + 8, 8);
memcpy(&pb->c, r->r + 16, 8);
memcpy(&pb->d, r->r + 24, 8);
return pb;
}
void proto_to_preimage(const Preimage *pb, struct preimage *r)
{
/* Kill me again. */
memcpy(r->r, &pb->a, 8);
memcpy(r->r + 8, &pb->b, 8);
memcpy(r->r + 16, &pb->c, 8);
memcpy(r->r + 24, &pb->d, 8);
}
bool proto_to_rel_locktime(const Locktime *l, struct rel_locktime *locktime)
{
switch (l->locktime_case) {
case LOCKTIME__LOCKTIME_SECONDS:
return seconds_to_rel_locktime(l->seconds, locktime);
case LOCKTIME__LOCKTIME_BLOCKS:
return blocks_to_rel_locktime(l->blocks, locktime);
default:
return false;
}
}
bool proto_to_abs_locktime(const Locktime *l, struct abs_locktime *locktime)
{
switch (l->locktime_case) {
case LOCKTIME__LOCKTIME_SECONDS:
return seconds_to_abs_locktime(l->seconds, locktime);
case LOCKTIME__LOCKTIME_BLOCKS:
return blocks_to_abs_locktime(l->blocks, locktime);
default:
return false;
}
}
Locktime *rel_locktime_to_proto(const tal_t *ctx,
const struct rel_locktime *locktime)
{
Locktime *l = tal(ctx, Locktime);
locktime__init(l);
if (rel_locktime_is_seconds(locktime)) {
l->locktime_case = LOCKTIME__LOCKTIME_SECONDS;
l->seconds = rel_locktime_to_seconds(locktime);
} else {
l->locktime_case = LOCKTIME__LOCKTIME_BLOCKS;
l->blocks = rel_locktime_to_blocks(locktime);
}
return l;
}
Locktime *abs_locktime_to_proto(const tal_t *ctx,
const struct abs_locktime *locktime)
{
Locktime *l = tal(ctx, Locktime);
locktime__init(l);
if (abs_locktime_is_seconds(locktime)) {
l->locktime_case = LOCKTIME__LOCKTIME_SECONDS;
l->seconds = abs_locktime_to_seconds(locktime);
} else {
l->locktime_case = LOCKTIME__LOCKTIME_BLOCKS;
l->blocks = abs_locktime_to_blocks(locktime);
}
return l;
}
static void *proto_tal_alloc(void *allocator_data, size_t size)
{
return tal_arr(allocator_data, char, size);
}
static void proto_tal_free(void *allocator_data, void *pointer)
{
tal_free(pointer);
}
/* Get allocator so decoded protobuf will be tal off it. */
struct ProtobufCAllocator *make_prototal(const tal_t *ctx)
{
struct ProtobufCAllocator *prototal;
prototal = tal(ctx, struct ProtobufCAllocator);
prototal->alloc = proto_tal_alloc;
prototal->free = proto_tal_free;
prototal->allocator_data = tal(prototal, char);
return prototal;
}
/* Now steal object off of allocator (and free prototal) */
void steal_from_prototal(const tal_t *ctx, struct ProtobufCAllocator *prototal,
const void *pb)
{
tal_steal(ctx, pb);
tal_steal(pb, prototal->allocator_data);
tal_free(prototal);
}
REGISTER_TYPE_TO_HEXSTR(preimage);