Implement X509 certificate log caching

By default, each certificate is now output only once per hour. This also
should work in cluster mode, where we use the net broker-table-syncing
feature to distribute the information about already seen certificates
across the entire cluster.

Log caching is also pretty configureable and can be changed using a
range of confiuration options and hooks.

Note that this is currently completely separate from X509 events
caching, which prevents duplicate parsing of X509 certificates.
This commit is contained in:
Johanna Amann 2021-06-28 15:41:57 +01:00
parent 311e113ff6
commit dde1e2e77e
17 changed files with 400 additions and 152 deletions

View file

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# Test that certificate log deduplication works in clustered mode.
#
# @TEST-PORT: BROKER_PORT1
# @TEST-PORT: BROKER_PORT2
# @TEST-PORT: BROKER_PORT3
#
# @TEST-EXEC: btest-bg-run manager-1 "cp ../cluster-layout.zeek . && CLUSTER_NODE=manager-1 zeek -b %INPUT"
# @TEST-EXEC: btest-bg-run worker-1 "cp ../cluster-layout.zeek . && CLUSTER_NODE=worker-1 zeek -b --pseudo-realtime -C -r $TRACES/tls/ecdhe.pcap %INPUT"
# @TEST-EXEC: $SCRIPTS/wait-for-file manager-1/lost 15 || (btest-bg-wait -k 1 && false)
# @TEST-EXEC: btest-bg-run worker-2 "cp ../cluster-layout.zeek . && CLUSTER_NODE=worker-2 zeek -b --pseudo-realtime -C -r $TRACES/tls/ecdhe.pcap %INPUT"
# @TEST-EXEC: btest-bg-wait 30
# @TEST-EXEC: btest-diff manager-1/x509.log
@TEST-START-FILE cluster-layout.zeek
redef Cluster::nodes = {
["manager-1"] = [$node_type=Cluster::MANAGER, $ip=127.0.0.1, $p=to_port(getenv("BROKER_PORT1"))],
["worker-1"] = [$node_type=Cluster::WORKER, $ip=127.0.0.1, $p=to_port(getenv("BROKER_PORT2")), $manager="manager-1", $interface="eth0"],
["worker-2"] = [$node_type=Cluster::WORKER, $ip=127.0.0.1, $p=to_port(getenv("BROKER_PORT3")), $manager="manager-1", $interface="eth0"],
};
@TEST-END-FILE
@load base/protocols/ssl
@load base/frameworks/cluster
@load base/frameworks/logging
redef Log::default_rotation_interval = 0secs;
redef Log::default_rotation_postprocessor_cmd = "echo";
redef exit_only_after_terminate = T;
event terminate_me() {
terminate();
}
@if ( Cluster::local_node_type() == Cluster::WORKER )
event zeek_init()
{
suspend_processing();
}
event Broker::peer_added(endpoint: Broker::EndpointInfo, msg: string)
{
continue_processing();
}
@endif
event SSL::log_ssl(i: SSL::Info)
{
print "log_line";
schedule 2secs { terminate_me() };
}
global peers_lost = 0;
event Broker::peer_lost(endpoint: Broker::EndpointInfo, msg: string)
{
++peers_lost;
system("touch lost");
if ( peers_lost == 2 )
schedule 2sec { terminate_me() };
}