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#include "hsm_control.h"
#include "lightningd.h"
#include "subd.h"
#include <ccan/err/err.h>
#include <ccan/io/io.h>
#include <ccan/take/take.h>
#include <common/status.h>
#include <common/utils.h>
#include <errno.h>
#include <hsmd/gen_hsm_client_wire.h>
#include <inttypes.h>
#include <lightningd/hsm_control.h>
#include <lightningd/log.h>
#include <lightningd/log_status.h>
#include <string.h>
#include <wally_bip32.h>
#include <wire/wire_sync.h>
u8 *hsm_sync_read(const tal_t *ctx, struct lightningd *ld)
{
for (;;) {
u8 *msg = wire_sync_read(ctx, ld->hsm_fd);
if (!msg)
fatal("Could not read from HSM: %s", strerror(errno));
if (log_status_msg(ld->log, msg))
tal_free(msg);
else
return msg;
}
}
void hsm_init(struct lightningd *ld, bool newdir)
{
const tal_t *tmpctx = tal_tmpctx(ld);
u8 *msg;
bool create;
ld->hsm_fd = subd_raw(ld, "lightning_hsmd");
if (ld->hsm_fd < 0)
err(1, "Could not subd hsm");
ld->hsm_log = new_log(ld, ld->log_book, "hsmd:");
if (newdir)
create = true;
else
create = (access("hsm_secret", F_OK) != 0);
if (!wire_sync_write(ld->hsm_fd, towire_hsm_init(tmpctx, create)))
err(1, "Writing init msg to hsm");
ld->wallet->bip32_base = tal(ld->wallet, struct ext_key);
msg = hsm_sync_read(tmpctx, ld);
if (!fromwire_hsm_init_reply(msg,
&ld->id,
&ld->peer_seed,
ld->wallet->bip32_base))
errx(1, "HSM did not give init reply");
tal_free(tmpctx);
}