zeek/scripts/base/protocols/syslog/main.bro
Seth Hall 11c437faa3 Logging framework update and mass Log::ID renaming.
- Log path's are generated in the scripting land
  now.  The default Log stream ID to path string
  mapping works like this:
    - Notice::LOG -> "notice"
    - Notice::POLICY_LOG -> "notice_policy"
    - TestModule::LOG -> "test_module"

- Logging streams updated across all of the shipped
  scripts to be more user friendly.  Instead of
  the logging stream ID HTTP::HTTP, we now have
  HTTP::LOG, etc.

- The priorities on some bro_init handlers have
  been adjusted to make the process of applying
  filters or disabling streams easier for users.
2011-09-03 01:10:17 -04:00

52 lines
1.2 KiB
Text

##! Core script support for logging syslog messages.
@load ./consts
module Syslog;
export {
redef enum Log::ID += { LOG };
type Info: record {
ts: time &log;
uid: string &log;
id: conn_id &log;
proto: transport_proto &log;
facility: string &log;
severity: string &log;
message: string &log;
};
const ports = { 514/udp } &redef;
}
redef capture_filters += { ["syslog"] = "port 514" };
redef dpd_config += { [ANALYZER_SYSLOG_BINPAC] = [$ports = ports] };
redef record connection += {
syslog: Info &optional;
};
event bro_init() &priority=5
{
Log::create_stream(Syslog::LOG, [$columns=Info]);
}
event syslog_message(c: connection, facility: count, severity: count, msg: string) &priority=5
{
local info: Info;
info$ts=network_time();
info$uid=c$uid;
info$id=c$id;
info$proto=get_port_transport_proto(c$id$resp_p);
info$facility=facility_codes[facility];
info$severity=severity_codes[severity];
info$message=msg;
c$syslog = info;
}
event syslog_message(c: connection, facility: count, severity: count, msg: string) &priority=-5
{
Log::write(Syslog::LOG, c$syslog);
}