Files
Wez Furlong d920ffb5c4 fix: DANE downgrade resistance
We weren't checking the DNSSEC status for A/AAAA when considering
DANE, and were overly permissive in a couple of related cases.

This diff ended up fairly large because the bulk of it is to
facilitate testing.

refs: https://github.com/KumoCorp/kumomta/issues/543
refs: https://github.com/KumoCorp/kumomta/pull/517
2026-07-06 11:46:49 +01:00

59 lines
1.4 KiB
Lua

-- A minimal maildir sink that presents a specific TLS certificate on its
-- ESMTP listener, for use by the DANE integration tests. The certificate and
-- key are supplied via env so the test can compute the matching TLSA record.
local kumo = require 'kumo'
local TEST_DIR = os.getenv 'KUMOD_TEST_DIR'
kumo.on('init', function()
-- Keep accounting state isolated to this test; the defaults live in a shared,
-- possibly non-writable location.
kumo.configure_accounting_db_path ':memory:'
kumo.aaa.configure_acct_log {
log_dir = TEST_DIR .. '/acct',
max_segment_duration = '1s',
}
kumo.start_esmtp_listener {
listen = '127.0.0.1:0',
relay_hosts = { '0.0.0.0/0' },
tls_certificate = {
key_data = os.getenv 'KUMOD_SINK_TLS_CERT',
},
tls_private_key = {
key_data = os.getenv 'KUMOD_SINK_TLS_KEY',
},
}
kumo.start_http_listener {
listen = '127.0.0.1:0',
}
kumo.configure_local_logs {
log_dir = TEST_DIR .. '/logs',
max_segment_duration = '1s',
}
kumo.define_spool {
name = 'data',
path = TEST_DIR .. '/data-spool',
}
kumo.define_spool {
name = 'meta',
path = TEST_DIR .. '/meta-spool',
}
end)
kumo.on('smtp_server_message_received', function(msg)
msg:set_meta('queue', 'maildir')
end)
kumo.on('get_queue_config', function(_domain, _tenant, _campaign)
return kumo.make_queue_config {
protocol = {
maildir_path = TEST_DIR .. '/maildir',
},
}
end)