75 lines
1.9 KiB
C
75 lines
1.9 KiB
C
#include "libhsmd_python.h"
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#include <ccan/str/hex/hex.h>
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#include <common/setup.h>
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char *init(char *hex_hsm_secret, char *network_name) {
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const struct bip32_key_version *key_version;
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struct secret sec;
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u8 *response;
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common_setup(NULL);
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if (sodium_init() == -1) {
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fprintf(
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stderr,
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"Could not initialize libsodium. Maybe not enough entropy"
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" available ?");
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return NULL;
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}
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wally_init(0);
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secp256k1_ctx = wally_get_secp_context();
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sodium_mlock(&sec, sizeof(sec));
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if (!hex_decode(hex_hsm_secret, strlen(hex_hsm_secret), sec.data,
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sizeof(sec.data))) {
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fprintf(stderr,
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"Expected hex_hsm_secret of length 64, got %zu\n",
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strlen(hex_hsm_secret));
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return NULL;
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}
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/* Look up chainparams by their name */
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chainparams = chainparams_for_network(network_name);
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if (chainparams == NULL) {
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fprintf(stderr, "Could not find chainparams for network %s\n",
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network_name);
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return NULL;
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}
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key_version = &chainparams->bip32_key_version;
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response = hsmd_init(sec, *key_version);
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sodium_munlock(&sec, sizeof(sec));
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char *res = tal_hex(NULL, response);
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tal_free(response);
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return res;
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}
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char *handle(long long cap, long long dbid, char *peer_id, char *hexmsg) {
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size_t res_len;
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u8 *response, *request;
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char *res;
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struct hsmd_client *client;
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struct node_id *peer = NULL;
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request = tal_hexdata(tmpctx, hexmsg, strlen(hexmsg));
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if (peer_id != NULL) {
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peer = tal(tmpctx, struct node_id);
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node_id_from_hexstr(peer_id, strlen(peer_id), peer);
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client = hsmd_client_new_peer(tmpctx, cap, dbid, peer, NULL);
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} else {
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client = hsmd_client_new_main(tmpctx, cap, NULL);
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}
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response = hsmd_handle_client_message(tmpctx, client, request);
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if (response == NULL) {
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clean_tmpctx();
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return NULL;
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}
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res_len = hex_str_size(tal_bytelen(response));
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res = malloc(res_len);
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hex_encode(response, tal_bytelen(response), res, res_len);
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clean_tmpctx();
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return res;
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}
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