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186e67ec1d
This allows the path for the default filter to be specified explicitly when creating a stream and reduces the need to rely on the default path function to magically supply the path. The default path function is now only used if, when a filter is added to a stream, it has neither a path nor a path function already. Adapted the existing Log::create_stream calls to explicitly specify a path value. Addresses BIT-1324
59 lines
1.5 KiB
Text
59 lines
1.5 KiB
Text
##! Core script support for logging syslog messages. This script represents
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##! one syslog message as one logged record.
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@load ./consts
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module Syslog;
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export {
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redef enum Log::ID += { LOG };
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type Info: record {
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## Timestamp when the syslog message was seen.
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ts: time &log;
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## Unique ID for the connection.
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uid: string &log;
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## The connection's 4-tuple of endpoint addresses/ports.
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id: conn_id &log;
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## Protocol over which the message was seen.
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proto: transport_proto &log;
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## Syslog facility for the message.
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facility: string &log;
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## Syslog severity for the message.
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severity: string &log;
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## The plain text message.
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message: string &log;
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};
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}
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redef record connection += {
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syslog: Info &optional;
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};
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const ports = { 514/udp };
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redef likely_server_ports += { ports };
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event bro_init() &priority=5
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{
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Log::create_stream(Syslog::LOG, [$columns=Info, $path="syslog"]);
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Analyzer::register_for_ports(Analyzer::ANALYZER_SYSLOG, ports);
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}
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event syslog_message(c: connection, facility: count, severity: count, msg: string) &priority=5
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{
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local info: Info;
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info$ts=network_time();
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info$uid=c$uid;
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info$id=c$id;
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info$proto=get_port_transport_proto(c$id$resp_p);
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info$facility=facility_codes[facility];
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info$severity=severity_codes[severity];
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info$message=msg;
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c$syslog = info;
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}
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event syslog_message(c: connection, facility: count, severity: count, msg: string) &priority=-5
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{
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Log::write(Syslog::LOG, c$syslog);
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}
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