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gossipd: receive hsm fd from master.

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We'll need this soon.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
This commit is contained in:
Rusty Russell 2017-10-11 20:28:50 +10:30 committed by Christian Decker
parent f172be71dc
commit 4fa36c585d
3 changed files with 28 additions and 6 deletions
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2
gossipd/gossip.c
View File

@ -36,6 +36,8 @@
#include <wire/gen_peer_wire.h>
#include <wire/wire_io.h>
#define HSM_FD 3
struct daemon {
struct list_head peers;

28
lightningd/gossip_control.c
View File

@ -3,16 +3,21 @@
#include "peer_control.h"
#include "subd.h"
#include <ccan/err/err.h>
#include <ccan/fdpass/fdpass.h>
#include <ccan/take/take.h>
#include <ccan/tal/str/str.h>
#include <common/type_to_string.h>
#include <common/utils.h>
#include <errno.h>
#include <gossipd/gen_gossip_wire.h>
#include <hsmd/gen_hsm_wire.h>
#include <inttypes.h>
#include <lightningd/gossip_msg.h>
#include <lightningd/hsm_control.h>
#include <lightningd/jsonrpc.h>
#include <lightningd/log.h>
#include <wire/gen_peer_wire.h>
#include <wire/wire_sync.h>
static void gossip_finished(struct subd *gossip, int status)
{
@ -136,16 +141,31 @@ static int gossip_msg(struct subd *gossip, const u8 *msg, const int *fds)
void gossip_init(struct lightningd *ld)
{
tal_t *tmpctx = tal_tmpctx(ld);
u8 *init;
u8 *msg;
int hsmfd;
msg = towire_hsmctl_hsmfd_ecdh(tmpctx, 0);
if (!wire_sync_write(ld->hsm_fd, msg))
fatal("Could not write to HSM: %s", strerror(errno));
msg = hsm_sync_read(tmpctx, ld);
if (!fromwire_hsmctl_hsmfd_ecdh_fd_reply(msg, NULL))
fatal("Malformed hsmfd response: %s", tal_hex(msg, msg));
hsmfd = fdpass_recv(ld->hsm_fd);
if (hsmfd < 0)
fatal("Could not read fd from HSM: %s", strerror(errno));
ld->gossip = new_subd(ld, "lightning_gossipd", NULL,
gossip_wire_type_name,
gossip_msg, NULL, gossip_finished, NULL);
gossip_msg, NULL, gossip_finished,
take(&hsmfd), NULL);
if (!ld->gossip)
err(1, "Could not subdaemon gossip");
init = towire_gossipctl_init(tmpctx, ld->broadcast_interval,
msg = towire_gossipctl_init(tmpctx, ld->broadcast_interval,
&get_chainparams(ld)->genesis_blockhash);
subd_send_msg(ld->gossip, init);
subd_send_msg(ld->gossip, msg);
tal_free(tmpctx);
}

2
lightningd/new_connection.c
View File

@ -68,7 +68,7 @@ struct connection *new_connection(const tal_t *ctx,
struct command *cmd,
const struct pubkey *known_id)
{
static u64 id_counter;
static u64 id_counter = 1;
struct connection *c = tal(ctx, struct connection);
c->ld = ld;