core-lightning/common/ecdh_hsmd.c
Rusty Russell 1702c7a69a hsmd: convert to new wire generation style.
Note that other directories were explicitly depending on the generated
file, instead of relying on their (already existing) dependency on 
$(LIGHTNINGD_HSM_CLIENT_OBJS), so we remove that.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2020-08-25 12:53:13 +09:30

31 lines
855 B
C

#include <common/ecdh_hsmd.h>
#include <common/utils.h>
#include <hsmd/hsmd_wiregen.h>
#include <wire/wire_sync.h>
static int stashed_hsm_fd = -1;
static void (*stashed_failed)(enum status_failreason, const char *fmt, ...);
void ecdh(const struct pubkey *point, struct secret *ss)
{
const u8 *msg = towire_hsmd_ecdh_req(NULL, point);
if (!wire_sync_write(stashed_hsm_fd, take(msg)))
stashed_failed(STATUS_FAIL_HSM_IO, "Write ECDH to hsmd failed");
msg = wire_sync_read(tmpctx, stashed_hsm_fd);
if (!msg)
stashed_failed(STATUS_FAIL_HSM_IO, "No hsmd ECDH response");
if (!fromwire_hsmd_ecdh_resp(msg, ss))
stashed_failed(STATUS_FAIL_HSM_IO, "Invalid hsmd ECDH response");
}
void ecdh_hsmd_setup(int hsm_fd,
void (*failed)(enum status_failreason,
const char *fmt, ...))
{
stashed_hsm_fd = hsm_fd;
stashed_failed = failed;
}