From: Eric leblond <eric@inl.fr>

This patch adds new SQL schema for MySQL and PGsql. The goal is to improve the one line per entry format. There is no more a big table with all fields because this sort of storage is causing bad performance (databases don't like to have a lot of NULL fields to store).

Main changes are :
* Add new schema for MySQL and PGsql
* Use call to configurable procedure in SQL OUTPUT modules
* Arguments of a procedure are given by the list of fields of a selected table

1 files changed, 745 insertions, 0 deletions

diff --git a/doc/mysql-ulogd2.sql b/doc/mysql-ulogd2.sql
new file mode 100644
index 0000000..cbec234
--- /dev/null
+++ b/doc/mysql-ulogd2.sql
@@ -0,0 +1,745 @@
+-- general notes:
+--  - tables are split using the protocol
+--  - keys are created outside the table, when possible
+--  - foreign keys (constraints) are added using ULOG2_ADD_FOREIGN_KEYS()
+--  - some procedures for maintainance are provided (suppressing entries, compressing tables, running ~VACUUM)
+--  - security is set to INVOKER, which means the permissions of the connected client are used. To create an abstraction layer, DEFINER could be used (with precautions on DELETE ..)
+
+
+-- (most constraint) ulog2_ct >> tcp,udp,icmp >> ulog2 (least constraint)
+
+
+DROP TABLE IF EXISTS `_format`;
+CREATE TABLE `_format` (
+  `version` int(4) NOT NULL
+) ENGINE=INNODB;
+
+INSERT INTO _format (version) VALUES (3);
+
+-- this table could be used to know which user-defined tables are linked
+-- to ulog
+DROP TABLE IF EXISTS `_extensions`;
+CREATE TABLE `_extensions` (
+  `ext_id` int(8) unsigned NOT NULL auto_increment,
+  `ext_name` varchar(64) NOT NULL,
+  `table_name` varchar(64) NOT NULL,
+  `join_name` varchar(64) NOT NULL,
+  UNIQUE KEY `ext_id` (`ext_id`)
+) ENGINE=INNODB;
+
+DROP TABLE IF EXISTS `mac`;
+DROP TABLE IF EXISTS `tcp`;
+DROP TABLE IF EXISTS `udp`;
+DROP TABLE IF EXISTS `icmp`;
+DROP TABLE IF EXISTS `nufw`;
+DROP TABLE IF EXISTS `ulog2_ct`;
+DROP TABLE IF EXISTS `ct_tuple`;
+DROP TABLE IF EXISTS `ct_l4`;
+DROP TABLE IF EXISTS `ct_icmp`;
+DROP TABLE IF EXISTS `ulog2`;
+
+CREATE TABLE `ulog2` (
+  `_id` bigint unsigned NOT NULL auto_increment,
+  `oob_time_sec` int(10) unsigned default NULL,
+  `oob_time_usec` int(10) unsigned default NULL,
+  `oob_prefix` varchar(32) default NULL,
+  `oob_mark` int(10) unsigned default NULL,
+  `oob_in` varchar(32) default NULL,
+  `oob_out` varchar(32) default NULL,
+  `ip_saddr` binary(16) default NULL,
+  `ip_daddr` binary(16) default NULL,
+  `ip_protocol` tinyint(3) unsigned default NULL,
+  `ip_tos` tinyint(3) unsigned default NULL,
+  `ip_ttl` tinyint(3) unsigned default NULL,
+  `ip_totlen` smallint(5) unsigned default NULL,
+  `ip_ihl` tinyint(3) unsigned default NULL,
+  `ip_csum` smallint(5) unsigned default NULL,
+  `ip_id` smallint(5) unsigned default NULL,
+  `ip_fragoff` smallint(5) unsigned default NULL,
+  `timestamp` timestamp NOT NULL default CURRENT_TIMESTAMP on update CURRENT_TIMESTAMP,
+  UNIQUE KEY `key_id` (`_id`)
+) ENGINE=INNODB COMMENT='Table for IP packets';
+
+ALTER TABLE ulog2 ADD KEY `index_id` (`_id`);
+ALTER TABLE ulog2 ADD KEY `timestamp` (`timestamp`);
+ALTER TABLE ulog2 ADD KEY `ip_saddr` (`ip_saddr`);
+ALTER TABLE ulog2 ADD KEY `ip_daddr` (`ip_daddr`);
+-- This index does not seem very useful:
+-- ALTER TABLE ulog2 ADD KEY `oob_time_sec` (`oob_time_sec`);
+
+CREATE TABLE `mac` (
+  `_mac_id` bigint unsigned NOT NULL,
+  `mac_saddr` binary(12) default NULL,
+  `mac_daddr` binary(12) default NULL,
+  `mac_protocol` smallint(5) default NULL
+) ENGINE=INNODB;
+
+ALTER TABLE mac ADD UNIQUE KEY `_mac_id` (`_mac_id`);
+ALTER TABLE mac ADD KEY `mac_saddr` (`mac_saddr`);
+ALTER TABLE mac ADD KEY `mac_daddr` (`mac_daddr`);
+ALTER TABLE mac ADD KEY `index_mac_id` (`_mac_id`);
+
+CREATE TABLE `tcp` (
+  `_tcp_id` bigint unsigned NOT NULL,
+  `tcp_sport` int(5) unsigned default NULL,
+  `tcp_dport` int(5) unsigned default NULL,
+  `tcp_seq` int(10) unsigned default NULL,
+  `tcp_ackseq` int(10) unsigned default NULL,
+  `tcp_window` int(5) unsigned default NULL,
+  `tcp_urg` tinyint(4) default NULL,
+  `tcp_urgp` int(5) unsigned default NULL,
+  `tcp_ack` tinyint(4) default NULL,
+  `tcp_psh` tinyint(4) default NULL,
+  `tcp_rst` tinyint(4) default NULL,
+  `tcp_syn` tinyint(4) default NULL,
+  `tcp_fin` tinyint(4) default NULL
+) ENGINE=INNODB;
+
+ALTER TABLE tcp ADD UNIQUE KEY `_tcp_id` (`_tcp_id`);
+ALTER TABLE tcp ADD KEY `index_tcp_id` (`_tcp_id`);
+ALTER TABLE tcp ADD KEY `tcp_sport` (`tcp_sport`);
+ALTER TABLE tcp ADD KEY `tcp_dport` (`tcp_dport`);
+
+
+CREATE TABLE `udp` (
+  `_udp_id` bigint unsigned NOT NULL,
+  `udp_sport` int(5) unsigned default NULL,
+  `udp_dport` int(5) unsigned default NULL,
+  `udp_len` int(5) unsigned default NULL
+) ENGINE=INNODB;
+
+ALTER TABLE udp ADD UNIQUE KEY `_udp_id` (`_udp_id`);
+ALTER TABLE udp ADD KEY `index_udp_id` (`_udp_id`);
+ALTER TABLE udp ADD KEY `udp_sport` (`udp_sport`);
+ALTER TABLE udp ADD KEY `udp_dport` (`udp_dport`);
+
+CREATE TABLE `icmp` (
+  `_icmp_id` bigint unsigned NOT NULL,
+  `icmp_type` tinyint(3) unsigned default NULL,
+  `icmp_code` tinyint(3) unsigned default NULL,
+  `icmp_echoid` smallint(5) unsigned default NULL,
+  `icmp_echoseq` smallint(5) unsigned default NULL,
+  `icmp_gateway` int(10) unsigned default NULL,
+  `icmp_fragmtu` smallint(5) unsigned default NULL
+) ENGINE=INNODB;
+
+ALTER TABLE icmp ADD UNIQUE KEY `key_icmp_id` (`_icmp_id`);
+ALTER TABLE icmp ADD KEY `index_icmp_id` (`_icmp_id`);
+
+
+-- views
+
+DROP VIEW IF EXISTS `view_tcp`;
+CREATE SQL SECURITY INVOKER VIEW `view_tcp` AS
+        SELECT * FROM ulog2 INNER JOIN tcp ON ulog2._id = tcp._tcp_id;
+
+-- alternate form:
+--  select * from ulog2 where ulog2._id in (select tcp._tcp_id from tcp where tcp._tcp_id is not null);
+
+DROP VIEW IF EXISTS `view_udp`;
+CREATE SQL SECURITY INVOKER VIEW `view_udp` AS
+        SELECT * FROM ulog2 INNER JOIN udp ON ulog2._id = udp._udp_id;
+
+DROP VIEW IF EXISTS `view_icmp`;
+CREATE SQL SECURITY INVOKER VIEW `view_icmp` AS
+        SELECT * FROM ulog2 INNER JOIN icmp ON ulog2._id = icmp._icmp_id;
+
+-- ulog view
+DROP VIEW IF EXISTS `ulog`;
+CREATE SQL SECURITY INVOKER VIEW `ulog` AS
+        SELECT * FROM ulog2 INNER JOIN tcp ON ulog2._id = tcp._tcp_id INNER JOIN udp ON ulog2._id = udp._udp_id
+		 INNER JOIN icmp ON ulog2._id = icmp._icmp_id INNER JOIN mac ON ulog2._id = mac._mac_id;
+
+-- shortcuts
+DROP VIEW IF EXISTS `view_tcp_quad`;
+CREATE SQL SECURITY INVOKER VIEW `view_tcp_quad` AS
+        SELECT ulog2._id,ulog2.ip_saddr,tcp.tcp_sport,ulog2.ip_daddr,tcp.tcp_dport FROM ulog2 INNER JOIN tcp ON ulog2._id = tcp._tcp_id;
+
+DROP VIEW IF EXISTS `view_udp_quad`;
+CREATE SQL SECURITY INVOKER VIEW `view_udp_quad` AS
+        SELECT ulog2._id,ulog2.ip_saddr,udp.udp_sport,ulog2.ip_daddr,udp.udp_dport FROM ulog2 INNER JOIN udp ON ulog2._id = udp._udp_id;
+
+
+
+-- conntrack
+
+CREATE TABLE `ulog2_ct` (
+  `_ct_id` bigint unsigned NOT NULL auto_increment,
+  `orig_ip_saddr` binary(16) default NULL,
+  `orig_ip_daddr` binary(16) default NULL,
+  `orig_ip_protocol` tinyint(3) unsigned default NULL,
+  `orig_l4_sport` int(5) default NULL,
+  `orig_l4_dport` int(5) default NULL,
+  `orig_bytes` bigint default 0,
+  `orig_packets` bigint default 0,
+  `reply_ip_saddr` binary(16) default NULL,
+  `reply_ip_daddr` binary(16) default NULL,
+  `reply_ip_protocol` tinyint(3) unsigned default NULL,
+  `reply_l4_sport` int(5) default NULL,
+  `reply_l4_dport` int(5) default NULL,
+  `reply_bytes` bigint default 0,
+  `reply_packets` bigint default 0,
+  `icmp_code` tinyint(3) default NULL,
+  `icmp_type` tinyint(3) default NULL,
+  `ct_mark` bigint default 0,
+  `flow_start_sec` int(10) default 0,
+  `flow_start_usec` int(10) default 0,
+  `flow_end_sec` int(10) default 0,
+  `flow_end_usec` int(10) default 0,
+  `state` tinyint(3) unsigned default 0,
+  
+  UNIQUE KEY `_ct_id` (`_ct_id`)
+) ENGINE=INNODB;
+
+ALTER TABLE ulog2_ct ADD KEY `index_ct_id` (`_ct_id`);
+ALTER TABLE ulog2_ct ADD KEY `orig_ip_saddr` (`orig_ip_saddr`);
+ALTER TABLE ulog2_ct ADD KEY `orig_ip_daddr` (`orig_ip_daddr`);
+ALTER TABLE ulog2_ct ADD KEY `orig_ip_protocol` (`orig_ip_protocol`);
+ALTER TABLE ulog2_ct ADD KEY `orig_l4_dport` (`orig_l4_dport`);
+ALTER TABLE ulog2_ct ADD KEY `orig_l4_sport` (`orig_l4_sport`);
+ALTER TABLE ulog2_ct ADD KEY `reply_ip_saddr` (`reply_ip_saddr`);
+ALTER TABLE ulog2_ct ADD KEY `reply_ip_daddr` (`reply_ip_daddr`);
+ALTER TABLE ulog2_ct ADD KEY `reply_ip_protocol` (`reply_ip_protocol`);
+ALTER TABLE ulog2_ct ADD KEY `reply_l4_dport` (`reply_l4_dport`);
+ALTER TABLE ulog2_ct ADD KEY `reply_l4_sport` (`reply_l4_sport`);
+ALTER TABLE ulog2_ct ADD KEY `state` (`state`);
+ALTER TABLE ulog2_ct ADD KEY `orig_tuple` (`orig_ip_saddr`, `orig_ip_daddr`, `orig_ip_protocol`,
+					   `orig_l4_sport`, `orig_l4_dport`);
+ALTER TABLE ulog2_ct ADD KEY `reply_tuple` (`reply_ip_saddr`, `reply_ip_daddr`, `reply_ip_protocol`,
+					   `reply_l4_sport`, `reply_l4_dport`);
+
+DROP VIEW IF EXISTS `conntrack`;
+CREATE SQL SECURITY INVOKER VIEW `conntrack` AS
+	SELECT _ct_id,
+	       orig_ip_saddr,
+	       orig_ip_daddr,
+	       orig_ip_protocol,
+	       orig_l4_sport,
+	       orig_l4_dport,
+	       orig_bytes AS orig_raw_pktlen,
+	       orig_packets AS orig_raw_pktcount,
+	       reply_ip_saddr,
+	       reply_ip_daddr,
+	       reply_ip_protocol,
+	       reply_l4_sport,
+	       reply_l4_dport,
+	       reply_bytes AS reply_raw_pktlen,
+	       reply_packets AS reply_raw_pktcount,
+	       icmp_code,
+	       icmp_type,
+	       ct_mark,
+	       flow_start_sec,
+	       flow_start_usec,
+	       flow_end_sec,
+	       flow_end_usec FROM ulog2_ct WHERE state != 0;
+
+-- Helper table
+DROP TABLE IF EXISTS `ip_proto`;
+CREATE TABLE `ip_proto` (
+  `_proto_id` int(10) unsigned NOT NULL,
+  `proto_name` varchar(16) default NULL,
+  `proto_desc` varchar(255) default NULL
+) ENGINE=INNODB;
+
+ALTER TABLE ip_proto ADD UNIQUE KEY `_proto_id` (`_proto_id`);
+
+-- see files /etc/protocols
+-- or /usr/share/nmap/nmap-protocols
+INSERT INTO ip_proto (_proto_id,proto_name,proto_desc) VALUES
+        (0,'ip','internet protocol, pseudo protocol number'),
+        (1,'icmp','internet control message protocol'),
+        (2,'igmp','Internet Group Management'),
+        (3,'ggp','gateway-gateway protocol'),
+        (4,'ipencap','IP encapsulated in IP (officially \'IP\')'),
+        (5,'st','ST datagram mode'),
+        (6,'tcp','transmission control protocol'),
+        (17,'udp','user datagram protocol'),
+        (41,'ipv6','Internet Protocol, version 6'),
+        (58,'ipv6-icmp','ICMP for IPv6');
+
+-- NuFW specific
+
+DROP TABLE IF EXISTS `nufw`;
+CREATE TABLE `nufw` (
+  `_nufw_id` bigint unsigned NOT NULL,
+  `username` varchar(30) default NULL,
+  `user_id` smallint(5) unsigned default NULL,
+  `client_os` varchar(100) default NULL,
+  `client_app` varchar(256) default NULL
+) ENGINE=INNODB;
+
+ALTER TABLE nufw ADD UNIQUE KEY `_nufw_id` (`_nufw_id`);
+ALTER TABLE nufw ADD KEY `index_nufw_id` (`_nufw_id`);
+ALTER TABLE nufw ADD KEY `user_id` (`user_id`);
+ALTER TABLE nufw ADD FOREIGN KEY (_nufw_id) REFERENCES ulog2 (_id);
+
+DROP VIEW IF EXISTS `view_nufw`;
+CREATE SQL SECURITY INVOKER VIEW `view_nufw` AS
+        SELECT * FROM ulog2 INNER JOIN nufw ON ulog2._id = nufw._nufw_id;
+
+INSERT INTO _extensions (ext_name,table_name,join_name) VALUES
+        ('nufw','nufw','_nufw_id');
+
+-- Procedures
+
+DROP PROCEDURE IF EXISTS ULOG2_DROP_FOREIGN_KEYS;
+delimiter $$
+CREATE PROCEDURE ULOG2_DROP_FOREIGN_KEYS(
+                )
+SQL SECURITY INVOKER
+COMMENT 'Drop constraints for ulog2 tables'
+BEGIN
+        -- remember : table with most constraints first
+        ALTER TABLE icmp DROP FOREIGN KEY _icmp_id; 
+        ALTER TABLE udp DROP FOREIGN KEY _udp_id; 
+        ALTER TABLE tcp DROP FOREIGN KEY _tcp_id; 
+END
+$$
+delimiter ;
+
+DROP PROCEDURE IF EXISTS ULOG2_ADD_FOREIGN_KEYS;
+delimiter $$
+CREATE PROCEDURE ULOG2_ADD_FOREIGN_KEYS(
+                )
+SQL SECURITY INVOKER
+COMMENT 'Add constraints for ulog2 tables'
+BEGIN
+        -- remember : table with least constraints first
+        ALTER TABLE tcp ADD CONSTRAINT _tcp_id FOREIGN KEY (_tcp_id) REFERENCES ulog2 (_id);
+        ALTER TABLE udp ADD CONSTRAINT _udp_id FOREIGN KEY (_udp_id) REFERENCES ulog2 (_id);
+        ALTER TABLE icmp ADD CONSTRAINT _icmp_id FOREIGN KEY (_icmp_id) REFERENCES ulog2 (_id);
+END
+$$
+delimiter ;
+
+delimiter $$
+DROP FUNCTION IF EXISTS INSERT_IP_PACKET;
+CREATE FUNCTION INSERT_IP_PACKET(
+		_oob_time_sec int(10) unsigned,
+		_oob_time_usec int(10) unsigned,
+		_oob_prefix varchar(32),
+		_oob_mark int(10) unsigned,
+		_oob_in varchar(32),
+		_oob_out varchar(32),
+		_ip_saddr int(16),
+		_ip_daddr int(16),
+		_ip_protocol tinyint(3) unsigned
+		) RETURNS bigint unsigned
+SQL SECURITY INVOKER
+NOT DETERMINISTIC
+READS SQL DATA
+BEGIN
+	INSERT INTO ulog2 (oob_time_sec, oob_time_usec, oob_prefix, oob_mark, oob_in, oob_out,
+			   ip_saddr, ip_daddr, ip_protocol) VALUES 
+		(_oob_time_sec, _oob_time_usec, _oob_prefix, _oob_mark, _oob_in, _oob_out,
+		 _ip_saddr, _ip_daddr, _ip_protocol);
+	RETURN LAST_INSERT_ID();
+END
+$$
+
+delimiter $$
+DROP FUNCTION IF EXISTS INSERT_IP_PACKET_FULL;
+CREATE FUNCTION INSERT_IP_PACKET_FULL(
+		_oob_time_sec int(10) unsigned,
+		_oob_time_usec int(10) unsigned,
+		_oob_prefix varchar(32),
+		_oob_mark int(10) unsigned,
+		_oob_in varchar(32),
+		_oob_out varchar(32),
+		_ip_saddr int(16),
+		_ip_daddr int(16),
+		_ip_protocol tinyint(3) unsigned,
+	  	_ip_tos tinyint(3) unsigned,
+	  	_ip_ttl tinyint(3) unsigned,
+	  	_ip_totlen smallint(5) unsigned,
+	  	_ip_ihl tinyint(3) unsigned,
+	  	_ip_csum smallint(5) unsigned,
+	  	_ip_id smallint(5) unsigned,
+	  	_ip_fragoff smallint(5) unsigned
+		) RETURNS int(10) unsigned
+SQL SECURITY INVOKER
+NOT DETERMINISTIC
+READS SQL DATA
+BEGIN
+	INSERT INTO ulog2 (oob_time_sec, oob_time_usec, oob_prefix, oob_mark, oob_in, oob_out,
+			   ip_saddr, ip_daddr, ip_protocol, ip_tos, ip_ttl, ip_totlen, ip_ihl,
+		 	   ip_csum, ip_id, ip_fragoff ) VALUES 
+		(_oob_time_sec, _oob_time_usec, _oob_prefix, _oob_mark, _oob_in, _oob_out,
+		 _ip_saddr, _ip_daddr, _ip_protocol, _ip_tos, _ip_ttl, _ip_totlen, _ip_ihl,
+		 _ip_csum, _ip_id, _ip_fragoff);
+	RETURN LAST_INSERT_ID();
+END
+$$
+
+
+delimiter $$
+DROP PROCEDURE IF EXISTS PACKET_ADD_TCP_FULL;
+CREATE PROCEDURE PACKET_ADD_TCP_FULL(
+		IN `id` int(10) unsigned,
+		IN `_sport` smallint(5) unsigned,
+		IN `_dport` smallint(5) unsigned,
+		IN `_seq` int(10) unsigned,
+		IN `_ackseq` int(10) unsigned,
+		IN `_window` smallint(5) unsigned,
+		IN `_urg` tinyint(4),
+		IN `_urgp` smallint(5) unsigned,
+		IN `_ack` tinyint(4),
+		IN `_psh` tinyint(4),
+		IN `_rst` tinyint(4),
+		IN `_syn` tinyint(4),
+		IN `_fin` tinyint(4)
+		)
+BEGIN
+	INSERT INTO tcp (_tcp_id, tcp_sport, tcp_dport, tcp_seq, tcp_ackseq, tcp_window, tcp_urg, tcp_urgp, tcp_ack, tcp_psh, tcp_rst, tcp_syn, tcp_fin) VALUES
+	(id, _sport, _dport, _seq, _ackseq, _window, _urg, _urgp, _ack, _psh, _rst, _syn, _fin);
+END
+$$
+
+delimiter $$
+DROP PROCEDURE IF EXISTS PACKET_ADD_TCP;
+CREATE PROCEDURE PACKET_ADD_TCP(
+		IN `id` int(10) unsigned,
+		IN `_sport` smallint(5) unsigned,
+		IN `_dport` smallint(5) unsigned
+		)
+BEGIN
+	INSERT INTO tcp (_tcp_id, tcp_sport, tcp_dport) VALUES (id, _sport, _dport);
+END
+$$
+
+delimiter $$
+DROP PROCEDURE IF EXISTS PACKET_ADD_UDP;
+CREATE PROCEDURE PACKET_ADD_UDP(
+		IN `id` int(10) unsigned,
+		IN `_sport` smallint(5) unsigned,
+		IN `_dport` smallint(5) unsigned,
+		IN `_len` smallint(5) unsigned
+		)
+BEGIN
+	INSERT INTO udp (_udp_id, udp_sport, udp_dport, udp_len) VALUES
+	(id, _sport, _dport, _len);
+END
+$$
+
+delimiter $$
+DROP PROCEDURE IF EXISTS PACKET_ADD_ICMP;
+CREATE PROCEDURE PACKET_ADD_ICMP(
+		IN `id` int(10) unsigned,
+		IN `_icmp_type` tinyint(3) unsigned,
+		IN `_icmp_code` tinyint(3) unsigned,
+		IN `_icmp_echoid` smallint(5) unsigned,
+		IN `_icmp_echoseq` smallint(5) unsigned,
+		IN `_icmp_gateway` int(10) unsigned,
+		IN `_icmp_fragmtu` smallint(5) unsigned
+		)
+BEGIN
+	INSERT INTO icmp (_icmp_id, icmp_type, icmp_code, icmp_echoid, icmp_echoseq, 
+			  icmp_gateway, icmp_fragmtu) VALUES
+			 (id, _icmp_type, _icmp_code, _icmp_echoid, _icmp_echoseq, 
+			  _icmp_gateway, _icmp_fragmtu);
+
+END
+$$
+
+
+delimiter $$
+DROP PROCEDURE IF EXISTS PACKET_ADD_MAC;
+CREATE PROCEDURE PACKET_ADD_MAC(
+		IN `id` int(10) unsigned,
+		IN `_saddr` binary(12),
+		IN `_daddr` binary(12),
+		IN `_protocol` smallint(5)
+		)
+BEGIN
+	INSERT INTO mac (_mac_id, mac_saddr, mac_daddr, mac_protocol) VALUES
+	(id, _saddr, _daddr, _protocol);
+END
+$$
+
+delimiter $$
+DROP PROCEDURE IF EXISTS INSERT_PACKET_FULL;
+CREATE PROCEDURE INSERT_PACKET_FULL(
+		IN `_oob_time_sec` int(10) unsigned,
+		IN `_oob_time_usec` int(10) unsigned,
+		IN `_oob_prefix` varchar(32),
+		IN `_oob_mark` int(10) unsigned,
+		IN `_oob_in` varchar(32),
+		IN `_oob_out` varchar(32),
+		IN `_ip_saddr` int(16),
+		IN `_ip_daddr` int(16),
+		IN `_ip_protocol` tinyint(3) unsigned,
+	  	IN `_ip_tos` tinyint(3) unsigned,
+	  	IN `_ip_ttl` tinyint(3) unsigned,
+	  	IN `_ip_totlen` smallint(5) unsigned,
+	  	IN `_ip_ihl` tinyint(3) unsigned,
+	  	IN `_ip_csum` smallint(5) unsigned,
+	  	IN `_ip_id` smallint(5) unsigned,
+	  	IN `_ip_fragoff` smallint(5) unsigned,
+		IN `tcp_sport` smallint(5) unsigned,
+		IN `tcp_dport` smallint(5) unsigned,
+		IN `tcp_seq` int(10) unsigned,
+		IN `tcp_ackseq` int(10) unsigned,
+		IN `tcp_window` smallint(5) unsigned,
+		IN `tcp_urg` tinyint(4),
+		IN `tcp_urgp` smallint(5) unsigned,
+		IN `tcp_ack` tinyint(4),
+		IN `tcp_psh` tinyint(4),
+		IN `tcp_rst` tinyint(4),
+		IN `tcp_syn` tinyint(4),
+		IN `tcp_fin` tinyint(4),
+		IN `udp_sport` smallint(5) unsigned,
+		IN `udp_dport` smallint(5) unsigned,
+		IN `udp_len` smallint(5) unsigned,
+		IN `icmp_type` tinyint(3) unsigned,
+		IN `icmp_code` tinyint(3) unsigned,
+		IN `icmp_echoid` smallint(5) unsigned,
+		IN `icmp_echoseq` smallint(5) unsigned,
+		IN `icmp_gateway` int(10) unsigned,
+		IN `icmp_fragmtu` smallint(5) unsigned
+--		IN `mac_saddr` binary(12),
+--		IN `mac_daddr` binary(12),
+--		IN `mac_protocol` smallint(5)
+		)
+BEGIN
+	SET @lastid = INSERT_IP_PACKET_FULL(_oob_time_sec, _oob_time_usec, _oob_prefix,
+					   _oob_mark, _oob_in, _oob_out, _ip_saddr, 
+					   _ip_daddr, _ip_protocol, _ip_tos, _ip_ttl,
+					   _ip_totlen, _ip_ihl, _ip_csum, _ip_id,
+					   _ip_fragoff);
+	IF _ip_protocol = 6 THEN
+		CALL PACKET_ADD_TCP_FULL(@lastid, tcp_sport, tcp_dport, tcp_seq, tcp_ackseq,
+					 tcp_window, tcp_urg, tcp_urgp, tcp_ack, tcp_psh,
+					 tcp_rst, tcp_syn, tcp_fin);
+	ELSEIF _ip_protocol = 17 THEN
+		CALL PACKET_ADD_UDP(@lastid, udp_sport, udp_dport, udp_len);
+	ELSEIF _ip_protocol = 1 THEN
+		CALL PACKET_ADD_ICMP(@lastid, icmp_type, icmp_code, icmp_echoid, icmp_echoseq, 
+				     icmp_gateway, icmp_fragmtu);
+	END IF;
+--	IF mac_protocol IS NOT NULL THEN
+--		CALL PACKET_ADD_MAC(@lastid, mac_saddr, mac_daddr, mac_protocol);
+--	END IF;
+END
+$$
+
+
+delimiter $$
+DROP PROCEDURE IF EXISTS PACKET_ADD_NUFW;
+CREATE PROCEDURE PACKET_ADD_NUFW(
+		IN `id` int(10) unsigned,
+		IN `username` varchar(30),
+		IN `user_id` int(10) unsigned,
+		IN `client_os` varchar(100),
+		IN `client_app` varchar(256),
+		IN `socket` smallint(5)
+		)
+BEGIN
+	INSERT INTO nufw (_nufw_id, username, user_id, client_os, client_app, socket) VALUES
+	(id, username, user_id, client_os, client_app, socket);
+END
+$$
+
+delimiter $$
+DROP PROCEDURE IF EXISTS INSERT_CT;
+CREATE PROCEDURE INSERT_CT(
+		IN `_orig_ip_saddr` binary(16),
+		IN `_orig_ip_daddr` binary(16),
+		IN `_orig_ip_protocol` tinyint(3) unsigned,
+		IN `_orig_l4_sport` int(5),
+		IN `_orig_l4_dport` int(5),
+		IN `_orig_bytes` bigint,
+		IN `_orig_packets` bigint,
+		IN `_reply_ip_saddr` binary(16),
+		IN `_reply_ip_daddr` binary(16),
+		IN `_reply_ip_protocol` tinyint(3) unsigned,
+		IN `_reply_l4_sport` int(5),
+		IN `_reply_l4_dport` int(5),
+		IN `_reply_bytes` bigint,
+		IN `_reply_packets` bigint,
+		IN `_icmp_code` tinyint(3),
+		IN `_icmp_type` tinyint(3),
+		IN `_ct_mark` bigint,
+		IN `_flow_start_sec` int(10),
+		IN `_flow_start_usec` int(10),
+		IN `_flow_end_sec` int(10),
+		IN `_flow_end_usec` int(10)
+		)
+BEGIN
+	INSERT INTO ulog2_ct (orig_ip_saddr, orig_ip_daddr, orig_ip_protocol,
+		orig_l4_sport, orig_l4_dport, orig_bytes, orig_packets,
+		reply_ip_saddr, reply_ip_daddr, reply_ip_protocol,
+		reply_l4_sport, reply_l4_dport, reply_bytes, reply_packets,
+		icmp_code, icmp_type, ct_mark, 
+		flow_start_sec, flow_start_usec,
+		flow_end_sec, flow_end_usec)
+ 	VALUES (_orig_ip_saddr, _orig_ip_daddr, _orig_ip_protocol,
+		_orig_l4_sport, _orig_l4_dport, _orig_bytes, _orig_packets,
+		_reply_ip_saddr, _reply_ip_daddr, _reply_ip_protocol,
+		_reply_l4_sport, _reply_l4_dport, _reply_bytes, _reply_packets,
+		_icmp_code, _icmp_type, _ct_mark,
+		_flow_start_sec, _flow_start_usec,
+		_flow_end_sec, _flow_end_usec);
+
+END
+$$
+
+delimiter ;
+
+-- suppressing packets
+-- better use trigger ?
+--   -> a trigger needs super-user access
+--   -> triggers on delete does not affect drop tables
+DROP PROCEDURE IF EXISTS DELETE_PACKET;
+delimiter $$
+CREATE PROCEDURE DELETE_PACKET(
+		IN _packet_id bigint unsigned
+                )
+SQL SECURITY INVOKER
+COMMENT 'Delete a packet (from ulog tables only)'
+BEGIN
+        -- remember : table with most constraints first
+        DELETE FROM icmp  WHERE icmp._icmp_id = _packet_id;
+        DELETE FROM tcp   WHERE tcp._tcp_id = _packet_id;
+        DELETE FROM udp   WHERE udp._udp_id = _packet_id;
+        DELETE FROM ulog2 WHERE ulog2._id = _packet_id;
+END
+$$
+delimiter ;
+
+DROP PROCEDURE IF EXISTS DELETE_CUSTOM_ONE;
+delimiter $$
+-- XXX be careful with SQL injections !!
+CREATE PROCEDURE DELETE_CUSTOM_ONE(
+		IN tname varchar(64),
+		IN tjoin varchar(64),
+                IN _id bigint
+                )
+SQL SECURITY INVOKER
+COMMENT 'Delete packet in a custom table (specified at runtime) using a prepared query'
+BEGIN
+        SET @l_sql = CONCAT('DELETE FROM ',@tname,' WHERE ',@tname,'.',@tfield,' = ',_id);
+        PREPARE delete_stmt FROM @l_sql;
+        EXECUTE delete_stmt;
+        DEALLOCATE PREPARE delete_stmt;
+END
+$$
+delimiter ;
+
+DROP PROCEDURE IF EXISTS DELETE_PACKET_FULL;
+delimiter $$
+CREATE PROCEDURE DELETE_PACKET_FULL(
+		IN _packet_id bigint unsigned
+                )
+SQL SECURITY INVOKER
+COMMENT 'Delete packet in all tables (including extensions)'
+BEGIN
+        DECLARE tname varchar(64);
+        DECLARE tjoin varchar(64);
+        DECLARE l_last INT DEFAULT 0;
+
+        DECLARE ext_csr CURSOR FOR
+                SELECT table_name,join_name FROM _extensions;
+
+        DECLARE CONTINUE HANDLER FOR NOT FOUND SET l_last=1;
+
+        OPEN ext_csr;
+        ext_loop:LOOP
+                FETCH ext_csr INTO tname,tjoin;
+                IF l_last THEN
+                        LEAVE ext_loop;
+                END IF;
+                CALL DELETE_CUSTOM_ONE(tname,tjoin,_packet_id);
+        END LOOP ext_loop;
+        CLOSE ext_csr;
+
+        CALL DELETE_PACKET(_packet_id);
+END
+$$
+delimiter ;
+
+-- suppressing tuples
+DROP PROCEDURE IF EXISTS DELETE_CT_TUPLE;
+delimiter $$
+CREATE PROCEDURE DELETE_CT_TUPLE(
+		IN _packet_id bigint unsigned
+                )
+SQL SECURITY INVOKER
+COMMENT 'Delete a tuple from conntrack'
+BEGIN
+        -- remember : table with most constraints first
+        DELETE FROM ct_icmp  WHERE ct_icmp._icmp_id = _packet_id;
+        DELETE FROM ct_l4   WHERE ct_l4._l4_id = _packet_id;
+        DELETE FROM ct_tuple WHERE ct_tuple._tuple_id = _packet_id;
+END
+$$
+
+delimiter ;
+
+
+DROP PROCEDURE IF EXISTS DELETE_CT_FLOW;
+delimiter $$
+CREATE PROCEDURE DELETE_CT_FLOW(
+		IN _ct_packet_id bigint unsigned
+                )
+SQL SECURITY INVOKER
+COMMENT 'Delete a packet from the conntrack tables'
+BEGIN
+        DELETE FROM ulog2_ct WHERE ulog2_ct._ct_id = _ct_packet_id;
+END
+$$
+delimiter ;
+
+-- DROP TRIGGER IF EXISTS _trigger_delete;
+-- delimiter $$
+-- CREATE TRIGGER _trigger_delete BEFORE DELETE ON ulog2
+-- FOR EACH ROW
+-- BEGIN
+-- 	DELETE FROM icmp  WHERE icmp._icmp_id = _packet_id;
+--      DELETE FROM tcp   WHERE tcp._tcp_id = _packet_id;
+--      DELETE FROM udp   WHERE udp._udp_id = _packet_id;
+-- END
+-- $$
+-- delimiter ;
+
+
+-- Tables compression
+
+DROP PROCEDURE IF EXISTS COMPRESS_TABLES;
+delimiter $$
+CREATE PROCEDURE COMPRESS_TABLES(
+                )
+SQL SECURITY INVOKER
+COMMENT 'Try to remove dead entries and call OPTIMIZE for each table'
+BEGIN
+        -- look for packets in table _tcp and not in table ulog2
+        DELETE FROM tcp WHERE _tcp_id NOT IN (SELECT _id FROM ulog2);
+        -- XXX note: could be rewritten (need to see what is more efficient) as:
+        -- DELETE FROM tcp WHERE _tcp_id IN (SELECT tcp._tcp_id FROM tcp LEFT OUTER JOIN ulog2  ON (tcp._tcp_id = ulog2._id) WHERE ulog2._id IS NULL);
+        DELETE FROM mac WHERE _mac_id NOT IN (SELECT _id FROM ulog2);
+        DELETE FROM udp WHERE _udp_id NOT IN (SELECT _id FROM ulog2);
+        DELETE FROM icmp WHERE _icmp_id NOT IN (SELECT _id FROM ulog2);
+        -- look for packets in table ulog2 with proto tcp (or ipv6 ?) and not in table tcp
+        DELETE FROM ulog2 WHERE ulog2.ip_protocol = '6' AND _id NOT IN (SELECT _tcp_id FROM tcp);
+        DELETE FROM ulog2 WHERE ulog2.ip_protocol = '17' AND _id NOT IN (SELECT _udp_id FROM udp);
+        DELETE FROM ulog2 WHERE ulog2.ip_protocol = '2' AND _id NOT IN (SELECT _icmp_id FROM icmp);
+        -- finally, call optimize to reclaim unused space and defragment the data file
+        OPTIMIZE TABLE ulog2, mac, tcp, udp, icmp, ulog2_ct;
+END
+$$
+delimiter ;
+
+DROP PROCEDURE IF EXISTS ANALYZE_TABLES;
+delimiter $$
+CREATE PROCEDURE ANALYZE_TABLES(
+                )
+SQL SECURITY INVOKER
+COMMENT 'ANALYZE all ulog2 tables'
+BEGIN
+        ANALYZE TABLE ulog2, mac, tcp, udp, icmp, ulog2_ct;
+END
+$$
+delimiter ;
+
+-- Add foreign keys to tables
+CALL ULOG2_ADD_FOREIGN_KEYS();
+