zeek/scripts/base/protocols/syslog/main.bro
Seth Hall 597a4d6704 Hopefully the last major script reorganization.
- policy/ renamed to scripts/

- By default BROPATH now contains:
	- scripts/
	- scripts/policy
	- scripts/site

- *Nearly* all tests pass.

- All of scripts/base/ is loaded by main.cc
	- Can be disabled by setting $BRO_NO_BASE_SCRIPTS
	- Scripts in scripts/base/ don't use relative path loading to ease use of BRO_NO_BASE_SCRIPTS (to copy and paste that script).

- The scripts in scripts/base/protocols/ only (or soon will only) do logging and state building.

- The scripts in scripts/base/frameworks/ add functionality without causing any additional overhead.

- All "detection" activity happens through scripts in scripts/policy/.

- Communications framework modified temporarily to need an environment variable to actually enable (ENABLE_COMMUNICATION=1)
	- This is so the communications framework can be loaded as part
	  of the base without causing trouble when it's not needed.
	- This will be removed once a resolution to ticket #540 is reached.
2011-08-05 23:09:53 -04:00

52 lines
1.2 KiB
Text

##! Core script support for logging syslog messages.
@load ./consts
module Syslog;
export {
redef enum Log::ID += { SYSLOG };
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] = [$ports = ports] };
redef record connection += {
syslog: Info &optional;
};
event bro_init() &priority=5
{
Log::create_stream(SYSLOG, [$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, c$syslog);
}