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chore: use EXPERIMENTAL for BOLT7 DNS #911

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Changelog-EXPERIMENTAL: Ability to announce DNS addresses
This commit is contained in:
Michael Schmoock 2021-10-19 11:32:52 +02:00 • committed by Rusty Russell
parent 2b8896a0b5
commit a3ea9fdc87
3 changed files with 26 additions and 1 deletions
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6
connectd/connectd.c
View file

@ -928,12 +928,14 @@ static void try_connect_one_addr(struct connecting *connect)
bool use_proxy = connect->daemon->always_use_proxy;
const struct wireaddr_internal *addr = &connect->addrs[connect->addrnum];
struct io_conn *conn;
#if EXPERIMENTAL_FEATURES /* BOLT7 DNS RFC #911 */
bool use_dns = connect->daemon->use_dns;
struct addrinfo hints, *ais, *aii;
struct wireaddr_internal addrhint;
int gai_err;
struct sockaddr_in *sa4;
struct sockaddr_in6 *sa6;
#endif
/* In case we fail without a connection, make destroy_io_conn happy */
connect->conn = NULL;
@ -984,6 +986,7 @@ static void try_connect_one_addr(struct connecting *connect)
af = AF_INET6;
break;
case ADDR_TYPE_DNS:
#if EXPERIMENTAL_FEATURES /* BOLT7 DNS RFC #911 */
if (use_proxy) /* hand it to the proxy */
break;
if (!use_dns) /* ignore DNS when we can't use it */
@ -1025,6 +1028,7 @@ static void try_connect_one_addr(struct connecting *connect)
addr = &connect->addrs[connect->addrnum];
}
freeaddrinfo(ais);
#endif
goto next;
case ADDR_TYPE_WEBSOCKET:
af = -1;
@ -1666,8 +1670,10 @@ static void add_seed_addrs(struct wireaddr_internal **addrs,
NULL, broken_reply, NULL);
if (new_addrs) {
for (size_t j = 0; j < tal_count(new_addrs); j++) {
#if EXPERIMENTAL_FEATURES /* BOLT7 DNS RFC #911 */
if (new_addrs[j].type == ADDR_TYPE_DNS)
continue;
#endif
struct wireaddr_internal a;
a.itype = ADDR_INTERNAL_WIREADDR;
a.u.wireaddr = new_addrs[j];

2
lightningd/options.c
View file

@ -221,6 +221,7 @@ static char *opt_add_addr_withtype(const char *arg,
tal_arr_expand(&ld->proposed_wireaddr, wi);
}
#if EXPERIMENTAL_FEATURES /* BOLT7 DNS RFC #911 */
/* Add ADDR_TYPE_DNS to announce DNS hostnames */
if (is_dnsaddr(address) && ala & ADDR_ANNOUNCE) {
memset(&wi, 0, sizeof(wi));
@ -234,6 +235,7 @@ static char *opt_add_addr_withtype(const char *arg,
tal_arr_expand(&ld->proposed_listen_announce, ADDR_ANNOUNCE);
tal_arr_expand(&ld->proposed_wireaddr, wi);
}
#endif
return NULL;

19
tests/test_gossip.py
View file

@ -4,7 +4,8 @@ from fixtures import * # noqa: F401,F403
from fixtures import TEST_NETWORK
from pyln.client import RpcError, Millisatoshi
from utils import (
DEVELOPER, wait_for, TIMEOUT, only_one, sync_blockheight, expected_node_features, COMPAT
DEVELOPER, wait_for, TIMEOUT, only_one, sync_blockheight,
expected_node_features, COMPAT, EXPERIMENTAL_FEATURES
)
import json
@ -118,6 +119,13 @@ def test_announce_address(node_factory, bitcoind):
'::'],
'log-level': 'io',
'dev-allow-localhost': None}
if not EXPERIMENTAL_FEATURES: # BOLT7 DNS RFC #911
opts = {'disable-dns': None, 'announce-addr':
['4acth47i6kxnvkewtm6q7ib2s3ufpo5sqbsnzjpbi7utijcltosqemad.onion',
'1.2.3.4:1234',
'::'],
'log-level': 'io',
'dev-allow-localhost': None}
l1, l2 = node_factory.get_nodes(2, opts=[opts, {}])
l1.rpc.connect(l2.info['id'], 'localhost', l2.port)
@ -127,6 +135,14 @@ def test_announce_address(node_factory, bitcoind):
l1.wait_channel_active(scid)
l2.wait_channel_active(scid)
if not EXPERIMENTAL_FEATURES: # BOLT7 DNS RFC #911
l1.daemon.wait_for_log(r"\[OUT\] 0101.*47"
"010102030404d2"
"017f000001...."
"02000000000000000000000000000000002607"
"04e00533f3e8f2aedaa8969b3d0fa03a96e857bbb28064dca5e147e934244b9ba50230032607")
return
# We should see it send node announce with all addresses (257 = 0x0101)
# Note: local ephemeral port is masked out.
# Note: Since we `disable-dns` it should not announce a resolved IPv4
@ -154,6 +170,7 @@ def test_announce_address(node_factory, bitcoind):
assert addresses_dns[1]['port'] == 1236
@unittest.skipIf(not EXPERIMENTAL_FEATURES, "BOLT7 DNS RFC #911")
@pytest.mark.developer("gossip without DEVELOPER=1 is slow")
def test_announce_and_connect_via_dns(node_factory, bitcoind):
""" Test that DNS annoucements propagate and can be used when connecting.