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MySQL analyzer

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This commit is contained in:
Vlad Grigorescu 2014-07-24 15:52:42 -04:00
parent 3cea6ab1eb
commit 101d340b18
11 changed files with 714 additions and 0 deletions
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scripts/base/protocols/mysql/__load__.bro Normal file
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@load ./main

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scripts/base/protocols/mysql/main.bro Normal file
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##! Implements base functionality for MySQL analysis. Generates the mysql.log file.
module MySQL;
export {
redef enum Log::ID += { mysql::LOG };
type Info: record {
## Timestamp for when the event happened.
ts: time &log;
## Unique ID for the connection.
uid: string &log;
## The connection's 4-tuple of endpoint addresses/ports.
id: conn_id &log;
## The command that was issued
cmd: string &log;
## The argument issued to the command
arg: string &log;
## The result (error, OK, etc.) from the server
result: string &log &optional;
## Server message, if any
response: string &log &optional;
};
## Event that can be handled to access the MySQL record as it is sent on
## to the logging framework.
global log_mysql: event(rec: Info);
}
redef record connection += {
mysql: Info &optional;
};
const ports = { 1434/tcp, 3306/tcp };
const commands: table[count] of string = {
[0] = "sleep",
[1] = "quit",
[2] = "init_db",
[3] = "query",
[4] = "field_list",
};
event bro_init() &priority=5
{
Log::create_stream(mysql::LOG, [$columns=Info, $ev=log_mysql]);
Analyzer::register_for_ports(Analyzer::ANALYZER_MYSQL, ports);
}
event mysql_handshake_response(c: connection, username: string)
{
if ( !c?$mysql )
{
local info: Info;
info$ts = network_time();
info$uid = c$uid;
info$id = c$id;
info$cmd = "login";
info$arg = username;
c$mysql = info;
}
}
event mysql_command_request(c: connection, command: count, arg: string)
{
if ( !c?$mysql )
{
local info: Info;
info$ts = network_time();
info$uid = c$uid;
info$id = c$id;
info$cmd = commands[command];
info$arg = sub(arg, /\0$/, "");
c$mysql = info;
}
}
event mysql_command_response(c: connection, response: count)
{
if ( c?$mysql )
{
c$mysql$result = "ok";
c$mysql$response = fmt("Affected rows: %d", response);
Log::write(mysql::LOG, c$mysql);
delete c$mysql;
}
}
event mysql_error(c: connection, code: count, msg: string)
{
if ( c?$mysql )
{
c$mysql$result = "error";
c$mysql$response = msg;
Log::write(mysql::LOG, c$mysql);
delete c$mysql;
}
}
event mysql_ok(c: connection, affected_rows: count)
{
if ( c?$mysql )
{
c$mysql$result = "ok";
c$mysql$response = fmt("Affected rows: %d", affected_rows);
Log::write(mysql::LOG, c$mysql);
delete c$mysql;
}
}