lukechilds
/
lightning
mirror of https://github.com/lukechilds/lightning.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity
Browse Source

gossipd: be more rigorous in handling peer messages vs. daemon requests. 

Messages from a peer may be invalid in many ways: we send an error
packet in that case.  Rather than internally calling peer_error,
however, we make it explicit by having the handle_ functions return
NULL or an error packet.

Messages from the daemon itself should not be invalid: we log an error
and close the fd to them if it is.  Previously we logged an error but
didn't kill them.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
trytravis
Rusty Russell 6 years ago
parent
1bd76861fd
commit
363564301f
3 changed files with 224 additions and 174 deletions
Whitespace
Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL
Unified View
Diff Options
Show Stats Download Patch File Download Diff File
  1. 389
      gossipd/gossipd.c
  2. 7
      gossipd/routing.c
  3. 2
      gossipd/routing.h

389
gossipd/gossipd.c
View File

@ -186,22 +186,6 @@ static void wake_gossip_out(struct peer *peer)
daemon_conn_wake(peer->dc); daemon_conn_wake(peer->dc);
} }
static void peer_error(struct peer *peer, const char *fmt, ...)
{
va_list ap;
va_start(ap, fmt);
status_trace("peer %s: %s",
type_to_string(tmpctx, struct pubkey, &peer->id),
tal_vfmt(tmpctx, fmt, ap));
va_end(ap);
/* Send error: we'll close after writing this. */
va_start(ap, fmt);
queue_peer_msg(peer, take(towire_errorfmtv(peer, NULL, fmt, ap)));
va_end(ap);
}
static u8 *encode_short_channel_ids_start(const tal_t *ctx) static u8 *encode_short_channel_ids_start(const tal_t *ctx)
{ {
u8 *encoded = tal_arr(ctx, u8, 0); u8 *encoded = tal_arr(ctx, u8, 0);
@ -390,54 +374,34 @@ static void maybe_send_own_node_announce(struct daemon *daemon)
daemon->rstate->local_channel_announced = false; daemon->rstate->local_channel_announced = false;
} }
/** static const u8 *handle_channel_announcement_msg(struct peer *peer,
* Handle an incoming gossip message const u8 *msg)
*
* Returns wire formatted error if handling failed. The error contains the
* details of the failures. The caller is expected to return the error to the
* peer, or drop the error if the message did not come from a peer.
*/
static u8 *handle_gossip_msg(struct daemon *daemon, const u8 *msg,
const char *source)
{ {
struct routing_state *rstate = daemon->rstate; const struct short_channel_id *scid;
int t = fromwire_peektype(msg); const u8 *err;
u8 *err;
switch(t) {
case WIRE_CHANNEL_ANNOUNCEMENT: {
const struct short_channel_id *scid;
/* If it's OK, tells us the short_channel_id to lookup */
err = handle_channel_announcement(rstate, msg, &scid);
if (err)
return err;
else if (scid)
daemon_conn_send(daemon->master,
take(towire_gossip_get_txout(NULL,
scid)));
break;
}
case WIRE_NODE_ANNOUNCEMENT: /* If it's OK, tells us the short_channel_id to lookup */
err = handle_node_announcement(rstate, msg); err = handle_channel_announcement(peer->daemon->rstate, msg, &scid);
if (err) if (err)
return err; return err;
break; else if (scid)
daemon_conn_send(peer->daemon->master,
take(towire_gossip_get_txout(NULL, scid)));
return NULL;
}
case WIRE_CHANNEL_UPDATE: static u8 *handle_channel_update_msg(struct peer *peer, const u8 *msg)
err = handle_channel_update(rstate, msg, source); {
if (err) u8 *err = handle_channel_update(peer->daemon->rstate, msg, "subdaemon");
return err; if (err)
/* In case we just announced a new local channel. */ return err;
maybe_send_own_node_announce(daemon);
break;
}
/* All good, no error to report */ /* In case we just announced a new local channel. */
maybe_send_own_node_announce(peer->daemon);
return NULL; return NULL;
} }
static void handle_query_short_channel_ids(struct peer *peer, const u8 *msg) static const u8 *handle_query_short_channel_ids(struct peer *peer, const u8 *msg)
{ {
struct routing_state *rstate = peer->daemon->rstate; struct routing_state *rstate = peer->daemon->rstate;
struct bitcoin_blkid chain; struct bitcoin_blkid chain;
@ -445,16 +409,16 @@ static void handle_query_short_channel_ids(struct peer *peer, const u8 *msg)
struct short_channel_id *scids; struct short_channel_id *scids;
if (!fromwire_query_short_channel_ids(tmpctx, msg, &chain, &encoded)) { if (!fromwire_query_short_channel_ids(tmpctx, msg, &chain, &encoded)) {
peer_error(peer, "Bad query_short_channel_ids %s", return towire_errorfmt(peer, NULL,
tal_hex(tmpctx, msg)); "Bad query_short_channel_ids %s",
return; tal_hex(tmpctx, msg));
} }
if (!bitcoin_blkid_eq(&rstate->chain_hash, &chain)) { if (!bitcoin_blkid_eq(&rstate->chain_hash, &chain)) {
status_trace("%s sent query_short_channel_ids chainhash %s", status_trace("%s sent query_short_channel_ids chainhash %s",
type_to_string(tmpctx, struct pubkey, &peer->id), type_to_string(tmpctx, struct pubkey, &peer->id),
type_to_string(tmpctx, struct bitcoin_blkid, &chain)); type_to_string(tmpctx, struct bitcoin_blkid, &chain));
return; return NULL;
} }
/* BOLT #7: /* BOLT #7:
@ -465,15 +429,15 @@ static void handle_query_short_channel_ids(struct peer *peer, const u8 *msg)
* - MAY fail the connection. * - MAY fail the connection.
*/ */
if (peer->scid_queries || peer->scid_query_nodes) { if (peer->scid_queries || peer->scid_query_nodes) {
peer_error(peer, "Bad concurrent query_short_channel_ids"); return towire_errorfmt(peer, NULL,
return; "Bad concurrent query_short_channel_ids");
} }
scids = decode_short_ids(tmpctx, encoded); scids = decode_short_ids(tmpctx, encoded);
if (!scids) { if (!scids) {
peer_error(peer, "Bad query_short_channel_ids encoding %s", return towire_errorfmt(peer, NULL,
tal_hex(tmpctx, encoded)); "Bad query_short_channel_ids encoding %s",
return; tal_hex(tmpctx, encoded));
} }
/* BOLT #7: /* BOLT #7:
@ -489,9 +453,10 @@ static void handle_query_short_channel_ids(struct peer *peer, const u8 *msg)
/* Notify the daemon_conn-write loop */ /* Notify the daemon_conn-write loop */
daemon_conn_wake(peer->dc); daemon_conn_wake(peer->dc);
return NULL;
} }
static void handle_gossip_timestamp_filter(struct peer *peer, const u8 *msg) static u8 *handle_gossip_timestamp_filter(struct peer *peer, const u8 *msg)
{ {
struct bitcoin_blkid chain_hash; struct bitcoin_blkid chain_hash;
u32 first_timestamp, timestamp_range; u32 first_timestamp, timestamp_range;
@ -499,9 +464,9 @@ static void handle_gossip_timestamp_filter(struct peer *peer, const u8 *msg)
if (!fromwire_gossip_timestamp_filter(msg, &chain_hash, if (!fromwire_gossip_timestamp_filter(msg, &chain_hash,
&first_timestamp, &first_timestamp,
&timestamp_range)) { &timestamp_range)) {
peer_error(peer, "Bad gossip_timestamp_filter %s", return towire_errorfmt(peer, NULL,
tal_hex(tmpctx, msg)); "Bad gossip_timestamp_filter %s",
return; tal_hex(tmpctx, msg));
} }
if (!bitcoin_blkid_eq(&peer->daemon->rstate->chain_hash, &chain_hash)) { if (!bitcoin_blkid_eq(&peer->daemon->rstate->chain_hash, &chain_hash)) {
@ -509,7 +474,7 @@ static void handle_gossip_timestamp_filter(struct peer *peer, const u8 *msg)
type_to_string(tmpctx, struct pubkey, &peer->id), type_to_string(tmpctx, struct pubkey, &peer->id),
type_to_string(tmpctx, struct bitcoin_blkid, type_to_string(tmpctx, struct bitcoin_blkid,
&chain_hash)); &chain_hash));
return; return NULL;
} }
/* First time, start gossip sync immediately. */ /* First time, start gossip sync immediately. */
@ -523,6 +488,7 @@ static void handle_gossip_timestamp_filter(struct peer *peer, const u8 *msg)
if (peer->gossip_timestamp_max < peer->gossip_timestamp_min) if (peer->gossip_timestamp_max < peer->gossip_timestamp_min)
peer->gossip_timestamp_max = UINT32_MAX; peer->gossip_timestamp_max = UINT32_MAX;
peer->broadcast_index = 0; peer->broadcast_index = 0;
return NULL;
} }
static void reply_channel_range(struct peer *peer, static void reply_channel_range(struct peer *peer,
@ -612,16 +578,16 @@ static void queue_channel_ranges(struct peer *peer,
number_of_blocks - number_of_blocks / 2); number_of_blocks - number_of_blocks / 2);
} }
static void handle_query_channel_range(struct peer *peer, const u8 *msg) static u8 *handle_query_channel_range(struct peer *peer, const u8 *msg)
{ {
struct bitcoin_blkid chain_hash; struct bitcoin_blkid chain_hash;
u32 first_blocknum, number_of_blocks; u32 first_blocknum, number_of_blocks;
if (!fromwire_query_channel_range(msg, &chain_hash, if (!fromwire_query_channel_range(msg, &chain_hash,
&first_blocknum, &number_of_blocks)) { &first_blocknum, &number_of_blocks)) {
peer_error(peer, "Bad query_channel_range %s", return towire_errorfmt(peer, NULL,
tal_hex(tmpctx, msg)); "Bad query_channel_range %s",
return; tal_hex(tmpctx, msg));
} }
if (!bitcoin_blkid_eq(&peer->daemon->rstate->chain_hash, &chain_hash)) { if (!bitcoin_blkid_eq(&peer->daemon->rstate->chain_hash, &chain_hash)) {
@ -629,18 +595,20 @@ static void handle_query_channel_range(struct peer *peer, const u8 *msg)
type_to_string(tmpctx, struct pubkey, &peer->id), type_to_string(tmpctx, struct pubkey, &peer->id),
type_to_string(tmpctx, struct bitcoin_blkid, type_to_string(tmpctx, struct bitcoin_blkid,
&chain_hash)); &chain_hash));
return; return NULL;
} }
if (first_blocknum + number_of_blocks < first_blocknum) { if (first_blocknum + number_of_blocks < first_blocknum) {
peer_error(peer, "query_channel_range overflow %u+%u", return towire_errorfmt(peer, NULL,
first_blocknum, number_of_blocks); "query_channel_range overflow %u+%u",
return; first_blocknum, number_of_blocks);
} }
queue_channel_ranges(peer, first_blocknum, number_of_blocks); queue_channel_ranges(peer, first_blocknum, number_of_blocks);
return NULL;
} }
static void handle_reply_channel_range(struct peer *peer, const u8 *msg) static const u8 *handle_reply_channel_range(struct peer *peer, const u8 *msg)
{ {
struct bitcoin_blkid chain; struct bitcoin_blkid chain;
u8 complete; u8 complete;
@ -652,52 +620,52 @@ static void handle_reply_channel_range(struct peer *peer, const u8 *msg)
if (!fromwire_reply_channel_range(tmpctx, msg, &chain, &first_blocknum, if (!fromwire_reply_channel_range(tmpctx, msg, &chain, &first_blocknum,
&number_of_blocks, &complete, &number_of_blocks, &complete,
&encoded)) { &encoded)) {
peer_error(peer, "Bad reply_channel_range %s", return towire_errorfmt(peer, NULL,
tal_hex(tmpctx, msg)); "Bad reply_channel_range %s",
return; tal_hex(tmpctx, msg));
} }
if (!bitcoin_blkid_eq(&peer->daemon->rstate->chain_hash, &chain)) { if (!bitcoin_blkid_eq(&peer->daemon->rstate->chain_hash, &chain)) {
peer_error(peer, "reply_channel_range for bad chain: %s", return towire_errorfmt(peer, NULL,
tal_hex(tmpctx, msg)); "reply_channel_range for bad chain: %s",
return; tal_hex(tmpctx, msg));
} }
if (!peer->query_channel_blocks) { if (!peer->query_channel_blocks) {
peer_error(peer, "reply_channel_range without query: %s", return towire_errorfmt(peer, NULL,
tal_hex(tmpctx, msg)); "reply_channel_range without query: %s",
return; tal_hex(tmpctx, msg));
} }
if (first_blocknum + number_of_blocks < first_blocknum) { if (first_blocknum + number_of_blocks < first_blocknum) {
peer_error(peer, "reply_channel_range invalid %u+%u", return towire_errorfmt(peer, NULL,
first_blocknum, number_of_blocks); "reply_channel_range invalid %u+%u",
return; first_blocknum, number_of_blocks);
} }
scids = decode_short_ids(tmpctx, encoded); scids = decode_short_ids(tmpctx, encoded);
if (!scids) { if (!scids) {
peer_error(peer, "Bad reply_channel_range encoding %s", return towire_errorfmt(peer, NULL,
tal_hex(tmpctx, encoded)); "Bad reply_channel_range encoding %s",
return; tal_hex(tmpctx, encoded));
} }
n = first_blocknum - peer->first_channel_range; n = first_blocknum - peer->first_channel_range;
if (first_blocknum < peer->first_channel_range if (first_blocknum < peer->first_channel_range
|| n + number_of_blocks > tal_count(peer->query_channel_blocks)) { || n + number_of_blocks > tal_count(peer->query_channel_blocks)) {
peer_error(peer, "reply_channel_range invalid %u+%u for query %u+%u", return towire_errorfmt(peer, NULL,
first_blocknum, number_of_blocks, "reply_channel_range invalid %u+%u for query %u+%zu",
peer->first_channel_range, first_blocknum, number_of_blocks,
tal_count(peer->query_channel_blocks)); peer->first_channel_range,
return; tal_count(peer->query_channel_blocks));
} }
p = memchr(peer->query_channel_blocks + n, 1, number_of_blocks); p = memchr(peer->query_channel_blocks + n, 1, number_of_blocks);
if (p) { if (p) {
peer_error(peer, "reply_channel_range %u+%u already have block %zu", return towire_errorfmt(peer, NULL,
first_blocknum, number_of_blocks, "reply_channel_range %u+%u already have block %zu",
peer->first_channel_range + (p - peer->query_channel_blocks)); first_blocknum, number_of_blocks,
return; peer->first_channel_range + (p - peer->query_channel_blocks));
} }
/* Mark these blocks received */ /* Mark these blocks received */
@ -718,7 +686,7 @@ static void handle_reply_channel_range(struct peer *peer, const u8 *msg)
/* Still more to go? */ /* Still more to go? */
if (memchr(peer->query_channel_blocks, 0, if (memchr(peer->query_channel_blocks, 0,
tal_count(peer->query_channel_blocks))) tal_count(peer->query_channel_blocks)))
return; return NULL;
/* All done, send reply */ /* All done, send reply */
msg = towire_gossip_query_channel_range_reply(NULL, msg = towire_gossip_query_channel_range_reply(NULL,
@ -729,61 +697,61 @@ static void handle_reply_channel_range(struct peer *peer, const u8 *msg)
daemon_conn_send(peer->daemon->master, take(msg)); daemon_conn_send(peer->daemon->master, take(msg));
peer->query_channel_scids = tal_free(peer->query_channel_scids); peer->query_channel_scids = tal_free(peer->query_channel_scids);
peer->query_channel_blocks = tal_free(peer->query_channel_blocks); peer->query_channel_blocks = tal_free(peer->query_channel_blocks);
return NULL;
} }
static void handle_ping(struct peer *peer, const u8 *ping) static u8 *handle_ping(struct peer *peer, const u8 *ping)
{ {
u8 *pong; u8 *pong;
if (!check_ping_make_pong(NULL, ping, &pong)) { if (!check_ping_make_pong(NULL, ping, &pong))
peer_error(peer, "Bad ping"); return towire_errorfmt(peer, NULL, "Bad ping");
return;
}
if (pong) if (pong)
queue_peer_msg(peer, take(pong)); queue_peer_msg(peer, take(pong));
return NULL;
} }
static void handle_pong(struct peer *peer, const u8 *pong) static const u8 *handle_pong(struct peer *peer, const u8 *pong)
{ {
const char *err = got_pong(pong, &peer->num_pings_outstanding); const char *err = got_pong(pong, &peer->num_pings_outstanding);
if (err) { if (err)
peer_error(peer, "%s", err); return towire_errorfmt(peer, NULL, "%s", err);
return;
}
daemon_conn_send(peer->daemon->master, daemon_conn_send(peer->daemon->master,
take(towire_gossip_ping_reply(NULL, &peer->id, true, take(towire_gossip_ping_reply(NULL, &peer->id, true,
tal_count(pong)))); tal_count(pong))));
return NULL;
} }
static void handle_reply_short_channel_ids_end(struct peer *peer, const u8 *msg) static u8 *handle_reply_short_channel_ids_end(struct peer *peer, const u8 *msg)
{ {
struct bitcoin_blkid chain; struct bitcoin_blkid chain;
u8 complete; u8 complete;
if (!fromwire_reply_short_channel_ids_end(msg, &chain, &complete)) { if (!fromwire_reply_short_channel_ids_end(msg, &chain, &complete)) {
peer_error(peer, "Bad reply_short_channel_ids_end %s", return towire_errorfmt(peer, NULL,
tal_hex(tmpctx, msg)); "Bad reply_short_channel_ids_end %s",
return; tal_hex(tmpctx, msg));
} }
if (!bitcoin_blkid_eq(&peer->daemon->rstate->chain_hash, &chain)) { if (!bitcoin_blkid_eq(&peer->daemon->rstate->chain_hash, &chain)) {
peer_error(peer, "reply_short_channel_ids_end for bad chain: %s", return towire_errorfmt(peer, NULL,
tal_hex(tmpctx, msg)); "reply_short_channel_ids_end for bad chain: %s",
return; tal_hex(tmpctx, msg));
} }
if (peer->num_scid_queries_outstanding == 0) { if (peer->num_scid_queries_outstanding == 0) {
peer_error(peer, "unexpected reply_short_channel_ids_end: %s", return towire_errorfmt(peer, NULL,
tal_hex(tmpctx, msg)); "unexpected reply_short_channel_ids_end: %s",
return; tal_hex(tmpctx, msg));
} }
peer->num_scid_queries_outstanding--; peer->num_scid_queries_outstanding--;
msg = towire_gossip_scids_reply(msg, true, complete); msg = towire_gossip_scids_reply(msg, true, complete);
daemon_conn_send(peer->daemon->master, take(msg)); daemon_conn_send(peer->daemon->master, take(msg));
return NULL;
} }
/* Arbitrary ordering function of pubkeys. /* Arbitrary ordering function of pubkeys.
@ -1059,7 +1027,7 @@ static bool local_direction(struct daemon *daemon,
return false; return false;
} }
static void handle_get_update(struct peer *peer, const u8 *msg) static bool handle_get_update(struct peer *peer, const u8 *msg)
{ {
struct short_channel_id scid; struct short_channel_id scid;
struct chan *chan; struct chan *chan;
@ -1068,10 +1036,10 @@ static void handle_get_update(struct peer *peer, const u8 *msg)
int direction; int direction;
if (!fromwire_gossip_get_update(msg, &scid)) { if (!fromwire_gossip_get_update(msg, &scid)) {
status_trace("peer %s sent bad gossip_get_update %s", status_broken("peer %s sent bad gossip_get_update %s",
type_to_string(tmpctx, struct pubkey, &peer->id), type_to_string(tmpctx, struct pubkey, &peer->id),
tal_hex(tmpctx, msg)); tal_hex(tmpctx, msg));
return; return false;
} }
chan = get_channel(rstate, &scid); chan = get_channel(rstate, &scid);
@ -1107,6 +1075,7 @@ out:
msg = towire_gossip_get_update_reply(NULL, update); msg = towire_gossip_get_update_reply(NULL, update);
daemon_conn_send(peer->dc, take(msg)); daemon_conn_send(peer->dc, take(msg));
return true;
} }
/* Return true if the information has changed. */ /* Return true if the information has changed. */
@ -1125,7 +1094,7 @@ static bool halfchan_new_info(const struct half_chan *hc,
|| hc->htlc_maximum_msat != htlc_maximum_msat; || hc->htlc_maximum_msat != htlc_maximum_msat;
} }
static void handle_local_channel_update(struct peer *peer, const u8 *msg) static bool handle_local_channel_update(struct peer *peer, const u8 *msg)
{ {
struct chan *chan; struct chan *chan;
struct short_channel_id scid; struct short_channel_id scid;
@ -1148,7 +1117,7 @@ static void handle_local_channel_update(struct peer *peer, const u8 *msg)
status_broken("peer %s bad local_channel_update %s", status_broken("peer %s bad local_channel_update %s",
type_to_string(tmpctx, struct pubkey, &peer->id), type_to_string(tmpctx, struct pubkey, &peer->id),
tal_hex(tmpctx, msg)); tal_hex(tmpctx, msg));
return; return false;
} }
/* Can theoretically happen if channel just closed. */ /* Can theoretically happen if channel just closed. */
@ -1158,7 +1127,7 @@ static void handle_local_channel_update(struct peer *peer, const u8 *msg)
type_to_string(tmpctx, struct pubkey, &peer->id), type_to_string(tmpctx, struct pubkey, &peer->id),
type_to_string(tmpctx, struct short_channel_id, type_to_string(tmpctx, struct short_channel_id,
&scid)); &scid));
return; return true;
} }
if (!local_direction(peer->daemon, chan, &direction)) { if (!local_direction(peer->daemon, chan, &direction)) {
@ -1166,7 +1135,7 @@ static void handle_local_channel_update(struct peer *peer, const u8 *msg)
type_to_string(tmpctx, struct pubkey, &peer->id), type_to_string(tmpctx, struct pubkey, &peer->id),
type_to_string(tmpctx, struct short_channel_id, type_to_string(tmpctx, struct short_channel_id,
&scid)); &scid));
return; return false;
} }
/* We could change configuration on restart; update immediately. /* We could change configuration on restart; update immediately.
@ -1192,52 +1161,132 @@ static void handle_local_channel_update(struct peer *peer, const u8 *msg)
/* Normal case: just toggle local_disabled, and generate broadcast in /* Normal case: just toggle local_disabled, and generate broadcast in
* maybe_update_local_channel when/if someone asks about it. */ * maybe_update_local_channel when/if someone asks about it. */
chan->local_disabled = disable; chan->local_disabled = disable;
return true;
} }
/** /**
* owner_msg_in - Called by the `peer->remote` upon receiving a * peer_msg_in - Called by the peer->dc upon receiving a message
* message
*/ */
static struct io_plan *owner_msg_in(struct io_conn *conn, static struct io_plan *peer_msg_in(struct io_conn *conn,
const u8 *msg, const u8 *msg,
struct peer *peer) struct peer *peer)
{ {
u8 *err; const u8 *err;
bool ok;
int type = fromwire_peektype(msg);
if (type == WIRE_CHANNEL_ANNOUNCEMENT || type == WIRE_CHANNEL_UPDATE || /* These are messages relayed from peer */
type == WIRE_NODE_ANNOUNCEMENT) { switch ((enum wire_type)fromwire_peektype(msg)) {
err = handle_gossip_msg(peer->daemon, msg, "subdaemon"); case WIRE_CHANNEL_ANNOUNCEMENT:
if (err) err = handle_channel_announcement_msg(peer, msg);
queue_peer_msg(peer, take(err)); goto handled_relay;
} else if (type == WIRE_QUERY_SHORT_CHANNEL_IDS) { case WIRE_CHANNEL_UPDATE:
handle_query_short_channel_ids(peer, msg); err = handle_channel_update_msg(peer, msg);
} else if (type == WIRE_REPLY_SHORT_CHANNEL_IDS_END) { goto handled_relay;
handle_reply_short_channel_ids_end(peer, msg); case WIRE_NODE_ANNOUNCEMENT:
} else if (type == WIRE_GOSSIP_TIMESTAMP_FILTER) { err = handle_node_announcement(peer->daemon->rstate, msg);
handle_gossip_timestamp_filter(peer, msg); goto handled_relay;
} else if (type == WIRE_GOSSIP_GET_UPDATE) { case WIRE_QUERY_CHANNEL_RANGE:
handle_get_update(peer, msg); err = handle_query_channel_range(peer, msg);
} else if (type == WIRE_GOSSIP_LOCAL_ADD_CHANNEL) { goto handled_relay;
gossip_store_add(peer->daemon->rstate->store, msg); case WIRE_REPLY_CHANNEL_RANGE:
handle_local_add_channel(peer->daemon->rstate, msg); err = handle_reply_channel_range(peer, msg);
} else if (type == WIRE_GOSSIP_LOCAL_CHANNEL_UPDATE) { goto handled_relay;
handle_local_channel_update(peer, msg); case WIRE_QUERY_SHORT_CHANNEL_IDS:
} else if (type == WIRE_QUERY_CHANNEL_RANGE) { err = handle_query_short_channel_ids(peer, msg);
handle_query_channel_range(peer, msg); goto handled_relay;
} else if (type == WIRE_REPLY_CHANNEL_RANGE) { case WIRE_REPLY_SHORT_CHANNEL_IDS_END:
handle_reply_channel_range(peer, msg); err = handle_reply_short_channel_ids_end(peer, msg);
} else if (type == WIRE_PING) { goto handled_relay;
handle_ping(peer, msg); case WIRE_GOSSIP_TIMESTAMP_FILTER:
} else if (type == WIRE_PONG) { err = handle_gossip_timestamp_filter(peer, msg);
handle_pong(peer, msg); goto handled_relay;
} else { case WIRE_PING:
status_broken("peer %s: send us unknown msg of type %s", err = handle_ping(peer, msg);
goto handled_relay;
case WIRE_PONG:
err = handle_pong(peer, msg);
goto handled_relay;
case WIRE_INIT:
case WIRE_ERROR:
case WIRE_OPEN_CHANNEL:
case WIRE_ACCEPT_CHANNEL:
case WIRE_FUNDING_CREATED:
case WIRE_FUNDING_SIGNED:
case WIRE_FUNDING_LOCKED:
case WIRE_SHUTDOWN:
case WIRE_CLOSING_SIGNED:
case WIRE_UPDATE_ADD_HTLC:
case WIRE_UPDATE_FULFILL_HTLC:
case WIRE_UPDATE_FAIL_HTLC:
case WIRE_UPDATE_FAIL_MALFORMED_HTLC:
case WIRE_COMMITMENT_SIGNED:
case WIRE_REVOKE_AND_ACK:
case WIRE_UPDATE_FEE:
case WIRE_CHANNEL_REESTABLISH:
case WIRE_ANNOUNCEMENT_SIGNATURES:
status_broken("peer %s: relayed unexpected msg of type %s",
type_to_string(tmpctx, struct pubkey, &peer->id), type_to_string(tmpctx, struct pubkey, &peer->id),
gossip_wire_type_name(type)); wire_type_name(fromwire_peektype(msg)));
return io_close(conn); return io_close(conn);
} }
/* Must be a gossip_wire_type asking us to do something. */
switch ((enum gossip_wire_type)fromwire_peektype(msg)) {
case WIRE_GOSSIP_GET_UPDATE:
ok = handle_get_update(peer, msg);
goto handled_cmd;
case WIRE_GOSSIP_LOCAL_ADD_CHANNEL:
ok = handle_local_add_channel(peer->daemon->rstate, msg);
if (ok)
gossip_store_add(peer->daemon->rstate->store, msg);
goto handled_cmd;
case WIRE_GOSSIP_LOCAL_CHANNEL_UPDATE:
ok = handle_local_channel_update(peer, msg);
goto handled_cmd;
case WIRE_GOSSIPCTL_INIT:
case WIRE_GOSSIP_GETNODES_REQUEST:
case WIRE_GOSSIP_GETNODES_REPLY:
case WIRE_GOSSIP_GETROUTE_REQUEST:
case WIRE_GOSSIP_GETROUTE_REPLY:
case WIRE_GOSSIP_GETCHANNELS_REQUEST:
case WIRE_GOSSIP_GETCHANNELS_REPLY:
case WIRE_GOSSIP_PING:
case WIRE_GOSSIP_PING_REPLY:
case WIRE_GOSSIP_QUERY_SCIDS:
case WIRE_GOSSIP_SCIDS_REPLY:
case WIRE_GOSSIP_SEND_TIMESTAMP_FILTER:
case WIRE_GOSSIP_QUERY_CHANNEL_RANGE:
case WIRE_GOSSIP_QUERY_CHANNEL_RANGE_REPLY:
case WIRE_GOSSIP_DEV_SET_MAX_SCIDS_ENCODE_SIZE:
case WIRE_GOSSIP_GET_CHANNEL_PEER:
case WIRE_GOSSIP_GET_CHANNEL_PEER_REPLY:
case WIRE_GOSSIP_GET_INCOMING_CHANNELS:
case WIRE_GOSSIP_GET_INCOMING_CHANNELS_REPLY:
case WIRE_GOSSIP_GET_UPDATE_REPLY:
case WIRE_GOSSIP_SEND_GOSSIP:
case WIRE_GOSSIP_LOCAL_CHANNEL_CLOSE:
case WIRE_GOSSIP_GET_TXOUT:
case WIRE_GOSSIP_GET_TXOUT_REPLY:
case WIRE_GOSSIP_ROUTING_FAILURE:
case WIRE_GOSSIP_MARK_CHANNEL_UNROUTABLE:
case WIRE_GOSSIP_OUTPOINT_SPENT:
case WIRE_GOSSIP_DEV_SUPPRESS:
break;
}
status_broken("peer %s: unexpected cmd of type %s",
type_to_string(tmpctx, struct pubkey, &peer->id),
gossip_wire_type_name(fromwire_peektype(msg)));
return io_close(conn);
handled_cmd:
if (!ok)
return io_close(conn);
goto done;
handled_relay:
if (err)
queue_peer_msg(peer, take(err));
done:
return daemon_conn_read_next(conn, peer->dc); return daemon_conn_read_next(conn, peer->dc);
} }
@ -1312,7 +1361,7 @@ static struct io_plan *connectd_new_peer(struct io_conn *conn,
} }
peer->dc = daemon_conn_new(daemon, fds[0], peer->dc = daemon_conn_new(daemon, fds[0],
owner_msg_in, dump_gossip, peer); peer_msg_in, dump_gossip, peer);
/* Free peer if conn closed (destroy_peer closes conn if peer freed) */ /* Free peer if conn closed (destroy_peer closes conn if peer freed) */
tal_steal(peer->dc, peer); tal_steal(peer->dc, peer);

7
gossipd/routing.c
View File

@ -1706,7 +1706,7 @@ void route_prune(struct routing_state *rstate)
tal_free(pruned); tal_free(pruned);
} }
void handle_local_add_channel(struct routing_state *rstate, const u8 *msg) bool handle_local_add_channel(struct routing_state *rstate, const u8 *msg)
{ {
struct short_channel_id scid; struct short_channel_id scid;
struct pubkey remote_node_id; struct pubkey remote_node_id;
@ -1716,13 +1716,13 @@ void handle_local_add_channel(struct routing_state *rstate, const u8 *msg)
&satoshis)) { &satoshis)) {
status_broken("Unable to parse local_add_channel message: %s", status_broken("Unable to parse local_add_channel message: %s",
tal_hex(msg, msg)); tal_hex(msg, msg));
return; return false;
} }
/* Can happen on channeld restart. */ /* Can happen on channeld restart. */
if (get_channel(rstate, &scid)) { if (get_channel(rstate, &scid)) {
status_trace("Attempted to local_add_channel a known channel"); status_trace("Attempted to local_add_channel a known channel");
return; return true;
} }
status_trace("local_add_channel %s", status_trace("local_add_channel %s",
@ -1730,4 +1730,5 @@ void handle_local_add_channel(struct routing_state *rstate, const u8 *msg)
/* Create new (unannounced) channel */ /* Create new (unannounced) channel */
new_chan(rstate, &scid, &rstate->local_id, &remote_node_id, satoshis); new_chan(rstate, &scid, &rstate->local_id, &remote_node_id, satoshis);
return true;
} }

2
gossipd/routing.h
View File

@ -328,6 +328,6 @@ bool routing_add_node_announcement(struct routing_state *rstate,
* is the case for private channels or channels that have not yet reached * is the case for private channels or channels that have not yet reached
* `announce_depth`. * `announce_depth`.
*/ */
void handle_local_add_channel(struct routing_state *rstate, const u8 *msg); bool handle_local_add_channel(struct routing_state *rstate, const u8 *msg);
#endif /* LIGHTNING_GOSSIPD_ROUTING_H */ #endif /* LIGHTNING_GOSSIPD_ROUTING_H */

Write Preview
Loading…
Cancel
Save