zeek/scripts/base/frameworks/broker/log.bro

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@load ./main
module Broker;
export {
## The Broker logging stream identifier.
redef enum Log::ID += { LOG };
## The type of a Broker activity being logged.
type Type: enum {
## An informational status update.
STATUS,
## An error situation.
ERROR
};
## A record type containing the column fields of the Broker log.
type Info: record {
## The network time at which a Broker event occurred.
ts: time &log;
## The type of the Broker event.
ty: Type &log;
## The event being logged.
ev: string &log;
## The peer (if any) with which a Broker event is
## concerned.
peer: NetworkInfo &log &optional;
## An optional message describing the Broker event in more detail
message: string &log &optional;
};
}
event bro_init() &priority=5
{
Log::create_stream(Broker::LOG, [$columns=Info, $path="broker"]);
}
function log_status(ev: string, endpoint: EndpointInfo, msg: string)
{
local r: Info;
r = [$ts = network_time(),
$ev = ev,
$ty = STATUS,
$message = msg];
if ( endpoint?$network )
r$peer = endpoint$network;
Log::write(Broker::LOG, r);
}
event Broker::peer_added(endpoint: EndpointInfo, msg: string)
{
log_status("peer-added", endpoint, msg);
}
event Broker::peer_removed(endpoint: EndpointInfo, msg: string)
{
log_status("peer-removed", endpoint, msg);
}
event Broker::peer_lost(endpoint: EndpointInfo, msg: string)
{
log_status("connection-terminated", endpoint, msg);
}
event Broker::error(code: ErrorCode, msg: string)
{
local ev = cat(code);
ev = subst_string(ev, "Broker::", "");
ev = subst_string(ev, "_", "-");
ev = to_lower(ev);
Log::write(Broker::LOG, [$ts = network_time(),
$ev = ev,
$ty = ERROR,
$message = msg]);
}