* Moved lcr module from modules_k to modules and removed it from modules_s.

modules_s/lcr/Makefile

@@ -1,17 +0,0 @@
-#
-# Least Cost Routing Module
-#
-# 
-# WARNING: do not run this directly, it should be run by the master Makefile
-
-include ../../Makefile.defs
-auto_gen=
-NAME=lcr.so
-LIBS=
-
-DEFS+=-DSER_MOD_INTERFACE
-
-SERLIBPATH=../../lib
-SER_LIBS+=$(SERLIBPATH)/srdb2/srdb2
-include ../../Makefile.modules
-

modules_s/lcr/README

@@ -1,259 +0,0 @@
-
-Least Cost Routing Module
-
-Juha Heinanen
-
-Edited by
-
-Juha Heinanen
-
-   Copyright © 2005 Juha Heinanen
-     _________________________________________________________
-
-   Table of Contents
-
-   1. User's Guide
-
-        1.1. Overview
-        1.2. Dependencies
-        1.3. Exported Parameters
-        1.4. Exported Functions
-        1.5. FIFO Commands
-        1.6. Known Limitations
-
-   2. TODO
-     _________________________________________________________
-
-Chapter 1. User's Guide
-
-1.1. Overview
-
-   Least cost routing (LCR) module implements two related capabilities:
-
-   (1) sequential forwarding of a request to one or more gateways
-       (functions load_gws and next_gw),
-
-   (2) sequential forwarding to contacts if they don't share the
-       the same qvalue (functions load_contacts and next_contacts).
-
-   Gateway selection is based on caller's RPID URI (if available in
-   caller's RPID AVP after authentication) or From URI and user part of
-   Request-URI (telephone number).  Gateway patterns matching RPID or
-   From URI and telephone number are ordered for forwarding purpose (1)
-   according to longest user part match, (2) according to priority, and
-   (3) randomly.
-
-   Each gateway belongs to a gateway group either alone or among other
-   gateways.  All gateways in a group share the same priority.
-
-   Gateway and routing information is kept in two tables:  gw and lcr.
-
-   When a gateway is selected, Request-URI is rewritten with information
-   from gw table: URI scheme, prefix, IP address, port, and transport
-   protocol.  Valid URI scheme values are NULL = sip, 1 = sip and 2 =
-   sips.  Prefix is appended in front of Request-URI user part.
-   Currently valid transport protocol values are NULL = none, 1 = udp, 2
-   = tcp, and 3 = tls.
-
-   Table lcr contains prefix of user part of Request-URI, From URI,
-   gateway group id, and priority.  From URI can contain special
-   characters % and _ matching any number of any characters and any one
-   character, respectively.  
-
-   In addition to gw and lcr tables there is third table gw_grp that is
-   used for administrative purposes only to associate names with gateway
-   group ids.
-   _________________________________________________________
-
-1.2. Dependencies
-
-   The module depends on the following modules (in the other
-   words the listed modules must be loaded before this module):
-
-     * tm module
-     * mysql module
-     _________________________________________________________
-
-1.3. Exported Parameters
-
-   LCR module exports the following database related parameters that
-   have usual purpose:
-
-     * db_url (default system default)
-     * gw_table (default "gw")
-     * gw_name_column (default "gw_name")
-     * ip_addr_column (default "ip_addr")
-     * port_column (default "port")
-     * uri_scheme_column (default "uri_scheme")
-     * transport_column (default "transport")
-     * grp_id_column (default "grp_id")
-     * lcr_table (default "lcr")
-     * prefix_column (default "prefix")
-     * from_uri_column (default "from_uri")
-     * priority_column (default "priority")
-
-   In addition there are parameters that can be used to override names
-   of the AVPs used by LCR module:
-
-     * gw_uri_avp	  (default "1400")
-     * contact_avp	  (default "1401")
-     * fr_inv_timer_avp	  (default "fr_inv_timer_avp")
-     * rpid_avp		  (default "rpid")
-
-   If string value of an AVP parameter contains only digits, the name of
-   the AVP is int value of the string.
-
-   Finally, the parameters used by sequential forwarding:
-
-     * fr_inv_timer		(default 90)
-     * fr_inv_timer_next	(default 30)
-     * fr_inv_timer_param	(default "")
-     * fr_inv_timer_next_param	(default "")
-
-   Function next_contacts() sets tm fr_inv_timer to fr_inv_timer_next
-   value if, after next contacts, there are still lower qvalue
-   contacts available, and to fr_inv_timer value if next contacts are
-   the last ones left. fr_inv_timer_param can define an AVP
-   overwriting fr_inv_timer value, and similarly, AVP defined by
-   fr_inv_timer_next_param can overwrite fr_inv_timer_next value.
-    _________________________________________________________
-
-1.4. Exported Functions
-
-1.4.1. load_gws()
-
-   Loads URIs of gateways matching RPID AVP (if available) or From URI
-   and user part of Request-URI to gw_uri_avp AVPs.  Returns 1 or -1
-   depending on success.
-
-   Example:
-
-   if (!load_gws()) {
-      sl_send_reply("500", "Server Internal Error - Cannot load gateways");
-      break;
-   };
-
-1.4.2. next_gw()
-
-   If called from a route block, replaces Request-URI by the first
-   gw_uri_avp AVP value and destroys that AVP.
-
-   If called from a failure route block, appends a new branch to request,
-   whose Request-URI is the first gw_uri_avp AVP value, and destroys that
-   AVP.
-
-   Returns 1 on success and -1 if there were no gateways left or if an
-   error occurred (see syslog).
-
-   Must be preceded by successful load_gws() call.
-
-   Example from route block:
-   
-   if (!next_gw()) {
-      sl_send_reply("503", "Service not available - No gateways");
-      break;
-    };
-
-   Example from failure route block:
-
-   if (!next_gw()) {
-      t_reply("503", "Service not available - No more gateways");
-      break;	     
-    };
-
-1.4.3. from_gw()
-
-   Checks if request came from IP address of a gateway.
-
-   Example:
-   
-   if (from_gw()) {
-      ...
-      break;
-   };
-
-1.4.4. to_gw()
-
-   Checks if in-dialog request goes to a gateway.
-
-   Example:
-   
-   if (to_gw()) {
-      ...
-      break;
-   };
-
-1.4.5. load_contacts()
-
-   Loads contacts in destination set in increasing qvalue order as
-   values of lcr_contact AVP.  If all contacts in the destination set
-   have the same qvalue, load_contacts() does not do anything thus
-   minimizing performance impact of sequential forking capability when
-   it is not needed.  Returns 1 if loading of contacts succeeded or
-   there was nothing to do.  Returns -1 on error (see syslog).
-
-   Example:
-
-   if (!load_contacts()) {
-      sl_send_reply("500", "Server Internal Error - Cannot load contacts");
-      break;
-   };
-
-1.4.6. next_contacts()
-
-   If called from a route block, replaces Request-URI with the first
-   lcr_contact AVP value, adds the remaining lcr_contact AVP values with
-   the same qvalue as branches, and destroys those AVPs.  It does
-   nothing if there are no lcr_contact AVPs.  Returns 1 if there were no
-   errors and -1 if an error occurred (see syslog).
-
-   If called from a failure route block, adds the first lcr_contact AVP
-   value and all following lcr_contact AVP values with the same qvalue
-   as new branches to request and destroys those AVPs.  Returns 1 if new
-   branches were successfully added and -1 on error (see syslog) or if
-   there were no more lcr_contact AVPs.
-
-   Must be preceded by successful load_contacts() call.
-
-   Example from route block:
-   
-   if (!next_contacts()) {
-       sl_send_reply("500", "Server Internal Error");
-        break;
-   } else {
-      t_relay();
-   };
-
-   Example from failure route block:
-   
-   if (next_contacts()) {
-       t_relay();
-   };
-
-
-1.5. FIFO Commands
-
-1.5.1. lcr_reload
-
-   Causes lcr module to re-read the contents of gateway table
-   into memory.
-
-1.5.2. lcr_dump
-
-   Causes lcr module to dump the contents of its in-memory gateway
-   table. 
-
-1.6. Known Limitations
-
-   There is an unlikely race condition on lcr reload. If a process uses
-   in memory gw table, which is reloaded at the same time twice through
-   FIFO, the second reload will delete the original table still in use
-   by the process.
-   _________________________________________________________
-
-2.0. TODO
-
-   Function load_gws() currently makes an SQL query for the matching
-   gateways.  In order to avoid the query, also lcr table should be
-   read into memory and the corresponding query should be rewritten in
-   C.

modules_s/lcr/doc/Makefile

@@ -1,4 +0,0 @@
-docs = lcr.xml
-
-docbook_dir=../../../docbook
-include $(docbook_dir)/Makefile.module

modules_s/lcr/doc/functions.xml

@@ -1,17 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" 
-   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
-
-<section id="flatstore.functions" xmlns:xi="http://www.w3.org/2001/XInclude">
-    <sectioninfo>
-	<revhistory>
-	    <revision>
-		<revnumber>$Revision$</revnumber>
-		<date>$Date$</date>
-	    </revision>
-	</revhistory>
-    </sectioninfo>
-
-    <title>Functions</title>
-
-</section>

modules_s/lcr/doc/lcr.xml

@@ -1,121 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" 
-   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
-
-<section id="lcr" xmlns:xi="http://www.w3.org/2001/XInclude">
-    <sectioninfo>
-	<authorgroup>
-	    <author>
-		<firstname>Juha</firstname>
-		<surname>Heinanen</surname>
-		<affiliation><orgname>FhG FOKUS</orgname></affiliation>
-		<address>
-		    <email></email>
-		</address>
-	    </author>
-	</authorgroup>
-	<copyright>
-	    <year>2003</year>
-	    <holder>FhG FOKUS</holder>
-	</copyright>
-	<revhistory>
-	    <revision>
-		<revnumber>$Revision$</revnumber>
-		<date>$Date$</date>
-	    </revision>
-	</revhistory>
-    </sectioninfo>
-
-    <title>LCR Module</title>
-
-    <section id="lcr.overview">
-	<title>Overview</title>
-	<para>
-         Least cost routing (LCR) module implements two related capabilities:
-       <itemizedlist>
-            <listitem> LCR may sequentially forward requests to one or more gateways using the load_gws 
-            and next_gw functions.
-            </listitem>
-
-            <listitem> LCR may sequentially forward contacts if they don't share the same qvalues.
-            Use the functions load_contacts and next_contacts to access and select a contact.
-            </listitem>
-        </itemizedlist>
-
-       <para>Gateway selection is based on caller's RPID URI (if available in caller's RPID AVP after 
-        authentication) or From URI and user part of Request-URI (telephone number).  Gateway patterns
-        matching RPID or From URI and telephone number are ordered for forwarding purposes as follows:
-        <itemizedlist>
-            <listitem>According to longest user part match
-            </listitem>
-
-            <listitem>According to priority
-            </listitem>
-
-            <listitem>Randomly
-            </listitem>
-        </itemizedlist>
-
-        Each gateway belongs to a gateway group either alone or among other gateways.  All gateways in a 
-        group share the same priority.  Gateway and routing information is kept in two tables:  
-        gw and lcr.
-        </para>
-
-        <para> When a gateway is selected, Request-URI is rewritten with information from gw table: 
-         URI scheme, prefix, IP address, port, and transport protocol.  Valid URI scheme values are:
-         <itemizedlist>
-            <listitem>NULL = sip
-            </listitem>
-            <listitem>1 = sip 
-            </listitem>
-            <listitem>2 = sips.  
-            </listitem>
-        </itemizedlist>
-        </para>
-
-        <para> If a prefix is specified it will be prepended to the Request-URI user part.
-        </para>
-
-        <para>Currently valid transport protocol values are: 
-         <itemizedlist>
-            <listitem>NULL = none
-            </listitem>
-            <listitem>1 = udp 
-            </listitem>
-            <listitem>2 = tcp  
-            </listitem>
-            <listitem>3 = tls  
-            </listitem>
-        </itemizedlist>
-        </para>
-
-        <para> Table lcr contains any prefix to be applied to the user part of Request-URI, the From URI,
-         the gateway group id, and the priority.  The From URI can contain special characters % and _ 
-         matching any number of any characters and any one character, respectively. 
-        </para>
-
-        <para> In addition to gw and lcr tables there is third table gw_grp that is used for 
-         administrative purposes only. In this table you may map names to the gateway group ids.
-        </para>
-
-	</para>
-    </section>
-
-    <section id="lcr.dependencies">
-	<title>Dependencies</title>
-	<para>The module depends on the following modules. These modules must be loaded before the LCR module
-         <itemizedlist>
-            <listitem>tm module
-            </listitem>
-            <listitem>mysql module
-            </listitem>
-        </itemizedlist>
-	</para>
-    </section>
-
-    
-    <xi:include href="params.xml"/>
-    <xi:include href="functions.xml"/>
-
-</section>
-

modules_s/lcr/doc/params.xml

@@ -1,235 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE section PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" 
-   "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd">
-
-<section id="lcr.parameters" xmlns:xi="http://www.w3.org/2001/XInclude">
-    <sectioninfo>
-	<revhistory>
-	    <revision>
-		<revnumber>$Revision$</revnumber>
-		<date>$Date$</date>
-	    </revision>
-	</revhistory>
-    </sectioninfo>
-
-    <title>Parameters</title>
-
-    <section id="db_url">
-	<title><varname>db_url</varname> (string)</title>
-	<para>
-	    The URL for accessing the database where the LCR tables reside
-	</para>
-	<para>
-	    Default value is NULL.
-	</para>
-	<example>
-	    <title>Set <varname>db_url</varname> parameter</title>
-	    <programlisting>
-		...
-		modparam("lcr", "db_url", "mysql://ser:pwd@localhost/ser") 
-		...
-	    </programlisting>
-	</example>
-    </section>
-
-    <section id="gw_table">
-	<title><varname>gw_table</varname> (string)</title>
-	<para>
-	    The name of the table containing the list of gateways
-	</para>
-	<para>
-	    Default value is gw.
-	</para>
-	<example>
-	    <title>Set <varname>gw_table</varname> parameter</title>
-	    <programlisting>
-		...
-		modparam("lcr", "gw_table", "mygateways") 
-		...
-	    </programlisting>
-	</example>
-    </section>
-
-    <section id="gw_name_column">
-	<title><varname>gw_name_column</varname> (string)</title>
-	<para>
-	    The name of the column that contains the actual name of the gateway
-	</para>
-	<para>
-	    Default value is gw_name.
-	</para>
-	<example>
-	    <title>Set <varname>gw_name_column</varname> parameter</title>
-	    <programlisting>
-		...
-		modparam("lcr", "gw_name_column", "Agateway") 
-		...
-	    </programlisting>
-	</example>
-    </section>
-
-    <section id="ip_addr_column">
-	<title><varname>ip_addr_column</varname> (string)</title>
-	<para>
-	    The name of the column that contains the IP address for a specific gateway
-	</para>
-	<para>
-	    Default value is ip_addr.
-	</para>
-	<example>
-	    <title>Set <varname>ip_addr_column</varname> parameter</title>
-	    <programlisting>
-		...
-		modparam("lcr", "ip_addr_column", "gatewayIPs") 
-		...
-	    </programlisting>
-	</example>
-    </section>
-
-    <section id="port_column">
-	<title><varname>port_column</varname> (string)</title>
-	<para>
-	    The name of the column that contains the port number through which this gateway communicates
-	</para>
-	<para>
-	    Default value is port.
-	</para>
-	<example>
-	    <title>Set <varname>port_column</varname> parameter</title>
-	    <programlisting>
-		...
-		modparam("lcr", "port_column", "gatewayPort") 
-		...
-	    </programlisting>
-	</example>
-    </section>
-
-    <section id="uri_scheme_column ">
-	<title><varname>uri_scheme_column </varname> (string)</title>
-	<para>
-	    The name of the column that contains the scheme to be used when rewriting the R-URI
-	</para>
-	<para>
-	    Default value is uri_scheme.
-	</para>
-	<example>
-	    <title>Set <varname>uri_scheme_column</varname> parameter</title>
-	    <programlisting>
-		...
-		modparam("lcr", "uri_scheme", "myURIScheme") 
-		...
-	    </programlisting>
-	</example>
-    </section>
-
-    <section id="transport_column ">
-	<title><varname>transport_column</varname> (string)</title>
-	<para>
-	    The name of the column that contains the transport to be used when contacting a gateway
-	</para>
-	<para>
-	    Default value is transport.
-	</para>
-	<example>
-	    <title>Set <varname>transport_column</varname> parameter</title>
-	    <programlisting>
-		...
-		modparam("lcr", "transport", "mySIPXport") 
-		...
-	    </programlisting>
-	</example>
-    </section>
-
-    <section id="grp_id_column ">
-	<title><varname>grp_id_column</varname> (string)</title>
-	<para>
-	    The name of the column that contains the gateway group ID number
-	</para>
-	<para>
-	    Default value is grp_id.
-	</para>
-	<example>
-	    <title>Set <varname>grp_id_column</varname> parameter</title>
-	    <programlisting>
-		...
-		modparam("lcr", "grp_id_column", "GwyGroups") 
-		...
-	    </programlisting>
-	</example>
-    </section>
-
-    <section id="lcr_table ">
-	<title><varname>lcr_table</varname> (string)</title>
-	<para>
-	    The name of the column that contains the LCR table
-	</para>
-	<para>
-	    Default value is lcr.
-	</para>
-	<example>
-	    <title>Set <varname>lcr_table</varname> parameter</title>
-	    <programlisting>
-		...
-		modparam("lcr", "lcr_table", "lcr") 
-		...
-	    </programlisting>
-	</example>
-    </section>
-
-    <section id="prefix_column ">
-	<title><varname>prefix_column</varname> (string)</title>
-	<para>
-	    The name of the column that contains the prefix to be prepended to the R-URI user part.
-	</para>
-	<para>
-	    Default value is prefix.
-	</para>
-	<example>
-	    <title>Set <varname>prefix_column</varname> parameter</title>
-	    <programlisting>
-		...
-		modparam("lcr", "prefix_column", "prefix") 
-		...
-	    </programlisting>
-	</example>
-    </section>
-
-    <section id="from_uri_column ">
-	<title><varname>from_uri_column</varname> (string)</title>
-	<para>
-	    The name of the column that contains the From URI which must match in order to select this gateway.
-            Note that the values in this column may contain wildcard characters as mentioned earlier in this 
-            document.
-	</para>
-	<para>
-	    Default value is from_uri.
-	</para>
-	<example>
-	    <title>Set <varname>from_uri_column</varname> parameter</title>
-	    <programlisting>
-		...
-		modparam("lcr", "from_uri_column", "FromURI") 
-		...
-	    </programlisting>
-	</example>
-    </section>
-
-    <section id="priority_column ">
-	<title><varname>priority_column</varname> (string)</title>
-	<para>
-	    The name of the column that contains a number indicating the priority of this gateway
-	</para>
-	<para>
-	    Default value is priority.
-	</para>
-	<example>
-	    <title>Set <varname>priority_column</varname> parameter</title>
-	    <programlisting>
-		...
-		modparam("lcr", "priority_column", "priority") 
-		...
-	    </programlisting>
-	</example>
-    </section>
-
-</section>

modules_s/lcr/lcr_mod.c

@@ -1,1113 +0,0 @@
-/*
- * Least Cost Routing module (also implements sequential forking)
- *
- * Copyright (C) 2005 Juha Heinanen
- *
- * This file is part of ser, a free SIP server.
- *
- * ser is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version
- *
- * For a license to use the ser software under conditions
- * other than those described here, or to purchase support for this
- * software, please contact iptel.org by e-mail at the following addresses:
- *    [email protected]
- *
- * ser is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- *
- * History:
- * -------
- *  2005-02-14: Introduced lcr module (jh)
- *  2005-02-20: Added sequential forking functions (jh)
- *  2005-02-25: Added support for int AVP names, combined addr and port
- *              AVPs (jh)
- *  2005-07-23: Added support for gw URI scheme and transport (jh)
- *  2005-08-20: Added support for gw prefixes (jh)
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <arpa/inet.h>
-#include "../../sr_module.h"
-#include "../../dprint.h"
-#include "../../ut.h"
-#include "../../error.h"
-#include "../../mem/mem.h"
-#include "../../mem/shm_mem.h"
-#include "../../lib/srdb2/db.h"
-#include "../../usr_avp.h"
-#include "../../parser/parse_uri.h"
-#include "../../parser/parse_from.h"
-#include "../../parser/msg_parser.h"
-#include "../../action.h"
-#include "../../modules/tm/tm_load.h"
-#include "../../qvalue.h"
-#include "../../dset.h"
-#include "../../ip_addr.h"
-#include "../../config.h"
-#include "../../route.h"
-#include "lcr_rpc.h"
-#include "lcr_mod.h"
-
-MODULE_VERSION
-
-/* usr_avp flag for sequential forking */
-#define DEF_Q_FLAG	"q_flag"
-avp_flags_t	Q_FLAG = 0;
-
-static void destroy(void);       /* Module destroy function */
-static int child_init(int rank); /* Per-child initialization function */
-static int mod_init(void);       /* Module initialization function */
-
-int reload_gws ( void );
-
-#define LCR_MAX_QUERY_SIZE 512
-#define MAX_PREFIX_LEN 16
-
-/* Default avp names */
-#define DEF_GW_URI_AVP "1400"
-#define DEF_CONTACT_AVP "1401"
-#define DEF_FR_INV_TIMER_AVP "$t.callee_fr_inv_timer"
-#define DEF_FR_INV_TIMER 90
-#define DEF_FR_INV_TIMER_NEXT 30
-#define DEF_RPID_AVP "rpid"
-
-/*
- * Database variables
- */
-db_ctx_t* ctx = NULL;
-db_cmd_t *lcr_load = NULL;
-db_cmd_t *lcr_reload = NULL;
-
-/* This is the stack of all used IP addresses, this stack is
- * used to make sure that no IP address (gateway) gets the same
- * request more than once.
- */
-static unsigned int addrs[MAX_BRANCHES];
-unsigned int addrs_top = 0;
-
-/*
- * Module parameter variables
- */
-static str db_url    = STR_STATIC_INIT(DEFAULT_RODB_URL);
-
-char* gw_table         = "gw";
-char* gw_name_col      = "gw_name";
-char* ip_addr_col      = "ip_addr";
-char* port_col         = "port";
-char* uri_scheme_col   = "uri_scheme";
-char* transport_col    = "transport";
-char* grp_id_col       = "grp_id";
-char* lcr_table        = "lcr";
-char* prefix_col       = "prefix";
-char* from_uri_col     = "from_uri";
-char* priority_col     = "priority";
-
-str gw_uri_avp       = STR_STATIC_INIT(DEF_GW_URI_AVP);
-str contact_avp      = STR_STATIC_INIT(DEF_CONTACT_AVP);
-str inv_timer_avp    = STR_STATIC_INIT(DEF_FR_INV_TIMER_AVP);
-int inv_timer        = DEF_FR_INV_TIMER;
-int inv_timer_next   = DEF_FR_INV_TIMER_NEXT;
-str inv_timer_ps     = STR_STATIC_INIT("");
-str inv_timer_next_ps = STR_STATIC_INIT("");
-str rpid_avp         = STR_STATIC_INIT(DEF_RPID_AVP);
-
-/*
- * Other module types and variables
- */
-
-struct contact {
-    str uri;
-    qvalue_t q;
-    unsigned short q_flag;
-    struct contact *next;
-};
-
-int_str gw_uri_name, contact_name, rpid_name;
-unsigned short gw_uri_avp_name_str;
-unsigned short contact_avp_name_str;
-unsigned short rpid_avp_name_str;
-
-static avp_ident_t tm_timer_param;	/* TM module's invite timer avp */
-
-struct gw_info **gws;	/* Pointer to current gw table pointer */
-struct gw_info *gws_1;	/* Pointer to gw table 1 */
-struct gw_info *gws_2;	/* Pointer to gw table 2 */
-struct tm_binds tmb;
-
-/* AVPs overwriting the module parameters */
-static avp_ident_t *inv_timer_param = NULL;
-static avp_ident_t *inv_timer_next_param = NULL;
-
-/*
- * Module functions that are defined later
- */
-int load_gws(struct sip_msg* _m, char* _s1, char* _s2);
-int next_gw(struct sip_msg* _m, char* _s1, char* _s2);
-int from_gw(struct sip_msg* _m, char* _s1, char* _s2);
-int to_gw(struct sip_msg* _m, char* _s1, char* _s2);
-int load_contacts (struct sip_msg*, char*, char*);
-int next_contacts (struct sip_msg*, char*, char*);
-
-
-/*
- * Exported functions
- */
-static cmd_export_t cmds[] = {
-	{"load_gws",      load_gws,      0, 0, REQUEST_ROUTE},
-	{"next_gw",       next_gw,       0, 0, REQUEST_ROUTE | FAILURE_ROUTE},
-	{"from_gw",       from_gw,       0, 0, REQUEST_ROUTE | FAILURE_ROUTE},
-	{"to_gw",         to_gw,         0, 0, REQUEST_ROUTE | FAILURE_ROUTE},
-	{"load_contacts", load_contacts, 0, 0, REQUEST_ROUTE},
-	{"next_contacts", next_contacts, 0, 0, REQUEST_ROUTE | FAILURE_ROUTE},
-	{0, 0, 0, 0, 0}
-};
-
-
-/*
- * Exported parameters
- */
-static param_export_t params[] = {
-	{"db_url",                   PARAM_STR,  &db_url              },
-	{"gw_table",                 PARAM_STRING, &gw_table          },
-	{"gw_name_column",           PARAM_STRING, &gw_name_col       },
-	{"ip_addr_column",           PARAM_STRING, &ip_addr_col       },
-	{"port_column",              PARAM_STRING, &port_col          },
-	{"uri_scheme_column",        PARAM_STRING, &uri_scheme_col    },
-	{"transport_column",         PARAM_STRING, &transport_col     },
-	{"grp_id_column",            PARAM_STRING, &grp_id_col        },
-	{"lcr_table",                PARAM_STRING, &lcr_table         },
-	{"prefix_column",            PARAM_STRING, &prefix_col        },
-	{"from_uri_column",          PARAM_STRING, &from_uri_col      },
-	{"priority_column",          PARAM_STRING, &priority_col      },
-	{"gw_uri_avp",               PARAM_STR,    &gw_uri_avp        },
-	{"contact_avp",              PARAM_STR,    &contact_avp       },
-	{"fr_inv_timer_avp",         PARAM_STR,    &inv_timer_avp     },
-	{"fr_inv_timer",             PARAM_INT,    &inv_timer         },
-	{"fr_inv_timer_next",        PARAM_INT,    &inv_timer_next    },
-	{"fr_inv_timer_param",       PARAM_STR,    &inv_timer_ps      },
-	{"fr_inv_timer_next_param",  PARAM_STR,    &inv_timer_next_ps },
-	{"rpid_avp",                 PARAM_STR,    &rpid_avp          },
-	{0, 0, 0}
-};
-
-
-/*
- * Module interface
- */
-struct module_exports exports = {
-	"lcr",
-	cmds,      /* Exported functions */
-	lcr_rpc,   /* RPC methods */
-	params,    /* Exported parameters */
-	mod_init,  /* module initialization function */
-	0,         /* response function */
-	destroy,   /* destroy function */
-	0,         /* oncancel function */
-	child_init /* child initialization function */
-};
-
-
-void lcr_db_close()
-{
-	if (lcr_load) db_cmd_free(lcr_load);
-	lcr_load = NULL;
-
-	if (lcr_reload) db_cmd_free(lcr_reload);
-	lcr_reload = NULL;
-
-	if (ctx) {
-		db_disconnect(ctx);
-		db_ctx_free(ctx);
-		ctx = NULL;
-	}
-}
-
-
-int lcr_db_init(char* db_url)
-{
-	int q_len;
-    static char query[LCR_MAX_QUERY_SIZE];
-	db_fld_t reload_cols[] = {
-		{.name = ip_addr_col,    .type = DB_INT},
-		{.name = port_col,       .type = DB_INT},
-		{.name = uri_scheme_col, .type = DB_INT},
-		{.name = transport_col,  .type = DB_INT},
-		{.name = prefix_col,     .type = DB_STR},
-		{.name = 0}
-	};
-
-	db_fld_t load_cols[] = {
-		{.name = "gw.ip_addr",    .type = DB_INT},
-		{.name = "gw.port",       .type = DB_INT},
-		{.name = "gw.uri_scheme", .type = DB_INT},
-		{.name = "gw.transport",  .type = DB_INT},
-		{.name = "gw.prefix",     .type = DB_STR},
-		{.name = 0}
-	};
-
-	db_fld_t load_match[] = {
-		{.name = "lcr.from_uri",      .type = DB_STR},
-		{.name = "lcr.ruri_username", .type = DB_STR},
-		{.name = 0}
-	};
-	  
-	ctx = db_ctx("lcr");
-	if (!ctx) goto err;
-	if (db_add_db(ctx, db_url) < 0) goto err;
-	if (db_connect(ctx) < 0) goto err;
-
-    q_len = snprintf(query, LCR_MAX_QUERY_SIZE, 
-					 "SELECT %s.%s, %s.%s, %s.%s, %s.%s, %s.%s from %s, %s "
-					 "WHERE ? LIKE %s.%s AND ? LIKE CONCAT(%s.%s, '%%') "
-					 "AND %s.%s = %s.%s ORDER BY CHAR_LENGTH(%s.%s) DESC, "
-					 "%s.%s, RAND()",
-					 gw_table, ip_addr_col, gw_table, port_col, 
-					 gw_table, uri_scheme_col, gw_table, transport_col, 
-					 gw_table, prefix_col, gw_table, lcr_table,
-					 lcr_table, from_uri_col, lcr_table, prefix_col,
-					 lcr_table, grp_id_col, gw_table, grp_id_col,
-					 lcr_table, prefix_col, lcr_table, priority_col);
-    if (q_len < 0 || q_len >= LCR_MAX_QUERY_SIZE) {
-		ERR("lcr: Database query too long\n");
-		return -1;
-    }
-	
-	lcr_load = db_cmd(DB_SQL, ctx, query, load_cols, load_match, NULL);
-	if (!lcr_load) goto err;
-
-	lcr_reload = db_cmd(DB_GET, ctx, gw_table, reload_cols, NULL, NULL);
-	if (!lcr_reload) goto err;
-    return 0;
-
-err:
-	lcr_db_close();
-	ERR("lcr: Error while initializing database layer\n");
-	return -1;
-}
-
-
-/*
- * Module initialization function callee in each child separately
- */
-static int child_init(int rank)
-{
-	if (rank==PROC_INIT || rank==PROC_MAIN || rank==PROC_TCP_MAIN)
-		return 0; /* do nothing for the main or tcp_main processes */
-	if (lcr_db_init(db_url.s) < 0) {
-		ERR("lcr: Unable to initialize database layer\n");
-		return -1;
-	}
-
-	return 0;
-}
-
-/* get AVP module parameter */
-static int get_avp_modparam(str *s, avp_ident_t *avp)
-{
-	if (!s->s || (s->len < 2)) return -1;
-
-	if (s->s[0] != '$') {
-		ERR("lcr: get_avp_modparam(): "
-			"unknown AVP identifier: %.*s\n", s->len, s->s);
-		return -1;
-	}
-	s->s++;
-	s->len--;
-	if (parse_avp_ident(s, avp)) {
-		ERR("lcr: get_avp_modparam(): "
-			"cannot parse AVP identifier: %.*s\n", s->len, s->s);
-		return -1;
-	}
-	return 0;
-}
-
-/*
- * Module initialization function that is called before the main process forks
- */
-static int mod_init(void)
-{
-	load_tm_f  load_tm;
-	int i;
-	unsigned int par;
-
-	DBG("lcr - initializing\n");
-
-	Q_FLAG = register_avpflag(DEF_Q_FLAG);
-	if (Q_FLAG == 0) {
-		ERR("lcr: Cannot regirser AVP flag: %s\n", DEF_Q_FLAG);
-		return -1;
-	}
-
-	/* import the TM auto-loading function */
-	if (!(load_tm = (load_tm_f)find_export("load_tm", NO_SCRIPT, 0))) {
-	    ERR("lcr: cannot import load_tm\n");
-		goto err;
-	}
-	/* let the auto-loading function load all TM stuff */
-	if (load_tm(&tmb) == -1) goto err;
-
-	/* Initializing gw tables and gw table pointer variable */
-	gws_1 = (struct gw_info *)shm_malloc(sizeof(struct gw_info) * (MAX_NO_OF_GWS + 1));
-	if (gws_1 == 0) {
-	    ERR("lcr: mod_init(): No memory for gw table\n");
-	    goto err;
-	}
-	gws_2 = (struct gw_info *)shm_malloc(sizeof(struct gw_info) * (MAX_NO_OF_GWS + 1));
-	if (gws_2 == 0) {
-	    ERR("lcr: mod_init(): No memory for gw table\n");
-	    goto err;
-	}
-	for (i = 0; i < MAX_NO_OF_GWS + 1; i++) {
-		gws_1[i].ip_addr = gws_2[i].ip_addr = 0;
-	}
-	gws = (struct gw_info **)shm_malloc(sizeof(struct gw_info *));
-	*gws = gws_1;
-
-	if (lcr_db_init(db_url.s) < 0) {
-		ERR("lcr: Unable to initialize database layer\n");
-		return -1;
-	}
-
-	/* First reload */
-	if (reload_gws() == -1) {
-		LOG(L_CRIT, "lcr: failed to reload gateways\n");
-		goto err;
-	}
-
-	lcr_db_close();
-
-	/* Assign parameter names */
-	if (str2int(&gw_uri_avp, &par) == 0) {
-	    gw_uri_name.n = par;
-	    gw_uri_avp_name_str = 0;
-	} else {
-	    gw_uri_name.s = gw_uri_avp;
-	    gw_uri_avp_name_str = AVP_NAME_STR;
-	}
-	if (str2int(&contact_avp, &par) == 0) {
-	    contact_name.n = par;
-	    contact_avp_name_str = 0;
-	} else {
-	    contact_name.s = contact_avp;
-	    contact_avp_name_str = AVP_NAME_STR;
-	}
-	if (str2int(&rpid_avp, &par) == 0) {
-	    rpid_name.n = par;
-	    rpid_avp_name_str = 0;
-	} else {
-	    rpid_name.s = rpid_avp;
-	    rpid_avp_name_str = AVP_NAME_STR;
-	}
-
-	if (get_avp_modparam(&inv_timer_avp, &tm_timer_param))
-		goto err;
-
-	if (inv_timer_ps.len) {
-		inv_timer_param = (avp_ident_t*)pkg_malloc(sizeof(avp_ident_t));
-		if (!inv_timer_param) {
-			ERR("lcr: Not enough memory\n");
-			return -1;
-		}
-		if (get_avp_modparam(&inv_timer_ps, inv_timer_param)) 
-			goto err;
-	}
-	
-	if (inv_timer_next_ps.len) {
-		inv_timer_next_param = (avp_ident_t*)pkg_malloc(sizeof(avp_ident_t));
-		if (!inv_timer_next_param) {
-			ERR("lcr: Not enough memory\n");
-			return -1;
-		}
-		if (get_avp_modparam(&inv_timer_next_ps, inv_timer_next_param)) 
-			goto err;
-	}
-	
-	return 0;
-	
- err:
-	return -1;
-}
-
-
-static void destroy(void)
-{
-	lcr_db_close();
-	
-	if (inv_timer_param) pkg_free(inv_timer_param);
-	if (inv_timer_next_param) pkg_free(inv_timer_next_param);
-}
-
-
-/*
- * Reload gws to unused gw table and when done, make the unused gw table
- * the one in use.
- */
-int reload_gws ( void )
-{
-    int i;
-    unsigned int ip_addr, port, prefix_len;
-    uri_type scheme;
-    uri_transport transport;
-    char* prefix;
-    db_res_t* res;
-    db_rec_t* rec;
-	
-	res = NULL;
-	if (db_exec(&res, lcr_reload) < 0) {
-		ERR("lcr: Failed to query gw data\n");
-		goto error;
-	}
-	if (res == NULL) {
-		ERR("lcr: Gw table query returned no data\n");
-		goto error;
-	}
-
-	for(rec = db_first(res), i = 0; rec; rec = db_next(res), i++) {
-		if (i >= MAX_NO_OF_GWS) {
-			ERR("lcr: Too many gw entries\n");
-			goto error;
-		}
-
-		if (rec->fld[0].flags & DB_NULL) {
-			ERR("lcr: IP address of GW is NULL\n");
-			goto error;
-		}
-		ip_addr = (unsigned int)rec->fld[0].v.int4;
-
-		if (rec->fld[1].flags & DB_NULL) port = 0;
-		else port = (unsigned int)rec->fld[1].v.int4;
-
-		if (port > 65535) {
-			ERR("lcr: Port of GW is too large: %u\n", port);
-			goto error;
-		}
-
-		if (rec->fld[2].flags & DB_NULL) scheme = SIP_URI_T;
-		else {
-			scheme = (uri_type)rec->fld[2].v.int4;
-			if ((scheme != SIP_URI_T) && (scheme != SIPS_URI_T)) {
-				ERR("lcr: Unknown or unsupported URI scheme: %u\n", (unsigned int)scheme);
-				goto error;
-			}
-		}
-
-		if (rec->fld[3].flags & DB_NULL) transport = PROTO_NONE;
-		else {
-			transport = (uri_transport)rec->fld[3].v.int4;
-			if ((transport != PROTO_UDP) && (transport != PROTO_TCP) &&
-				(transport != PROTO_TLS) && (transport != PROTO_SCTP)) {
-				ERR("lcr: Unknown or unsupported transport: %u\n", (unsigned int)transport);
-				goto error;
-			}
-		}
-
-		if (rec->fld[4].flags & DB_NULL) {
-			prefix_len = 0;
-			prefix = NULL;
-		} else {
-			prefix = rec->fld[4].v.lstr.s;
-			prefix_len = rec->fld[4].v.lstr.len;
-			if (prefix_len > MAX_PREFIX_LEN) {
-				ERR("lcr: Too long prefix\n");
-				goto error;
-			}
-		}
-
-		if (*gws == gws_1) {
-			gws_2[i].ip_addr = ip_addr;
-			gws_2[i].port = port;
-			gws_2[i].scheme = scheme;
-			gws_2[i].transport = transport;
-			gws_2[i].prefix_len = prefix_len;
-			if (prefix_len)
-				memcpy(&(gws_2[i].prefix[0]), prefix, prefix_len);
-		} else {
-			gws_1[i].ip_addr = ip_addr;
-			gws_1[i].port = port;
-			gws_1[i].scheme = scheme;
-			gws_1[i].transport = transport;
-			gws_1[i].prefix_len = prefix_len;
-			if (prefix_len)
-				memcpy(&(gws_1[i].prefix[0]), prefix, prefix_len);
-		}
-	}
-
-	db_res_free(res);
-
-    if (*gws == gws_1) {
-	    gws_2[i].ip_addr = 0;
-	    *gws = gws_2;
-    } else {
-	    gws_1[i].ip_addr = 0;
-	    *gws = gws_1;
-    }
-    return 1;
-
-	error:
-	if (res) db_res_free(res);
-	return -1;
-}
-
-/*
- * Load GW info from database to lcr_gw_addr_port AVPs
- */
-int load_gws(struct sip_msg* _m, char* _s1, char* _s2)
-{
-    db_res_t* res = NULL;
-    db_rec_t *rec;
-    str ruri_user, from_uri, value, addr_str, port_str;
-    static char ruri[MAX_URI_SIZE];
-    unsigned int i, j, prefix_len, addr, port;
-    uri_type scheme;
-    uri_transport transport;
-    struct ip_addr address;
-    char *at, *prefix;
-    int_str val;
-
-    /* Find Request-URI user */
-    if (parse_sip_msg_uri(_m) < 0) {
-	    ERR("lcr: Error while parsing R-URI\n");
-	    return -1;
-    }
-    ruri_user = _m->parsed_uri.user;
-	
-	/* Look for Caller RPID or From URI */
-    if (search_first_avp(rpid_avp_name_str, rpid_name, &val, 0) &&
-		val.s.s && val.s.len) {
-		/* Get URI user from RPID */
-		from_uri.len = val.s.len;
-		from_uri.s = val.s.s;
-    } else {
-		/* Get URI from From URI */
-		if ((!_m->from) && (parse_headers(_m, HDR_FROM_F, 0) == -1)) {
-			ERR("lcr: Error while parsing message\n");
-			return -1;
-		}
-		if (!_m->from) {
-			ERR("lcr: FROM header field not found\n");
-			return -1;
-		}
-		if ((!(_m->from)->parsed) && (parse_from_header(_m) < 0)) {
-			ERR("lcr: Error while parsing From body\n");
-			return -1;
-		}
-		from_uri = get_from(_m)->uri;
-    }
-	
-	lcr_load->match[0].v.lstr = from_uri;
-	lcr_load->match[1].v.lstr = ruri_user;
-
-    if (db_exec(&res, lcr_load) < 0) {
-		ERR("lcr: Failed to query accept data\n");
-		return -1;
-    }
-	if (res == NULL) {
-		ERR("lcr: Database query did not return any result\n");
-		return -1;
-	}
-
-	addrs_top = 0;
-	for(i = 0, rec = db_first(res); rec; rec = db_next(res), i++) {
-		if (rec->fld[0].flags & DB_NULL) {
-			ERR("lcr: Gateway IP address is NULL\n");
-			continue;
-		}
-      	addr = (unsigned int)rec->fld[0].v.int4;
-
-		if (addrs_top >= MAX_BRANCHES) {
-			INFO("lcr: Too many destinations\n");
-			goto end;
-		}
-		for(j = 0; j < addrs_top; j++) {
-			if (addrs[j] == addr) goto skip;
-		}
-		addrs[addrs_top++] = addr;
-
-		if (rec->fld[1].flags & DB_NULL) port = 0;
-		else port = (unsigned int)rec->fld[1].v.int4;
-
-		if (rec->fld[2].flags & DB_NULL) scheme = SIP_URI_T;
-		else scheme = (uri_type)rec->fld[2].v.int4;
-
-		if (rec->fld[3].flags & DB_NULL) transport = PROTO_NONE;
-		else transport = (uri_transport)rec->fld[3].v.int4;
-
-		if (rec->fld[4].flags & DB_NULL) {
-			prefix = NULL;
-			prefix_len = 0;
-		} else {
-			prefix = rec->fld[4].v.lstr.s;
-			prefix_len = rec->fld[4].v.lstr.len;
-		}
-
-		if (5 + prefix_len + ruri_user.len + 1 + 15 + 1 + 5 + 1 + 14 > MAX_URI_SIZE) {
-			ERR("lcr: Request URI would be too long\n");
-			continue;
-		}
-
-		at = (char *)&(ruri[0]);
-		if (scheme == SIP_URI_T) {
-			memcpy(at, "sip:", 4); at = at + 4;
-		} else if (scheme == SIPS_URI_T) {
-			memcpy(at, "sips:", 5); at = at + 5;
-		} else {
-			ERR("lcr: Unknown or unsupported URI scheme: %u\n", (unsigned int)scheme);
-			continue;
-		}
-
-		if (prefix_len) {
-			memcpy(at, prefix, prefix_len); at = at + prefix_len;
-		}
-		memcpy(at, ruri_user.s, ruri_user.len); at = at + ruri_user.len;
-		*at = '@'; at = at + 1;
-		address.af = AF_INET;
-		address.len = 4;
-		address.u.addr32[0] = addr;
-		addr_str.s = ip_addr2a(&address);
-		addr_str.len = strlen(addr_str.s);
-		memcpy(at, addr_str.s, addr_str.len); at = at + addr_str.len;
-		if (port != 0) {
-			if (port > 65535) {
-				ERR("lcr: Port of GW is too large: %u\n", port);
-				continue;
-			}
-			*at = ':'; at = at + 1;
-			port_str.s = int2str(port, &port_str.len);
-			memcpy(at, port_str.s, port_str.len); at = at + port_str.len;
-		}
-		if (transport != PROTO_NONE) {
-			memcpy(at, ";transport=", 11); at = at + 11;
-			if (transport == PROTO_UDP) {
-				memcpy(at, "udp", 3); at = at + 3;
-			} else if (transport == PROTO_TCP) {
-				memcpy(at, "tcp", 3); at = at + 3;
-			} else if (transport == PROTO_TLS) {
-				memcpy(at, "tls", 3); at = at + 3;
-			} else if (transport == PROTO_SCTP) {
-				memcpy(at, "sctp", 4); at = at + 4;
-			} else {
-				ERR("lcr: Unknown or unsupported transport: %u\n", (unsigned int)transport);
-				continue;
-			}
-		}
-		value.s = (char *)&(ruri[0]);
-		value.len = at - value.s;
-		val.s = value;
-		add_avp(gw_uri_avp_name_str | AVP_VAL_STR, gw_uri_name, val);
-		DBG("lcr: Added gw_uri_avp <%.*s>\n", STR_FMT(&value));
-
-	skip:
-		continue;
-    }
-		
-	end:
-	if (res) db_res_free(res);
-    return 1;
-}
-
-
-/*
- * If called from route block, rewrites host:port part of R-URI with the
- * first lcr_gw_addr:lcr_gw_port AVP values, which are then destroyed.
- * If called from failure route block, appends a new branch to request,
- * where host:port part of its R-URI is replaced by the first
- * lcr_gw_addr:lcr_gw_port AVP value, which is then destroyed.
- * Returns 1 upon success and -1 upon failure.
- */
-int next_gw(struct sip_msg* _m, char* _s1, char* _s2)
-{
-    int_str val;
-    struct action act;
-    int rval;
-    struct usr_avp *avp;
-	struct run_act_ctx ra_ctx;
-	
-    avp = search_first_avp(gw_uri_avp_name_str, gw_uri_name, &val, 0);
-    if (!avp) return -1;
-	
-    memset(&act, 0, sizeof(act));
-	init_run_actions_ctx(&ra_ctx);
-    if (is_route_type(REQUEST_ROUTE)) {
-		
-		act.type = SET_URI_T;
-		act.val[0].type = STRING_ST;
-		act.val[0].u.string = val.s.s;
-		rval = do_action(&ra_ctx, &act, _m);
-		destroy_avp(avp);
-		if (rval != 1) {
-			ERR("lcr: do_action failed with return value <%d>\n", rval);
-			return -1;
-		}
-		
-		return 1;
-		
-    } else { /* MODE_ONFAILURE */
-		
-		act.type = APPEND_BRANCH_T;
-		act.val[0].type = STRING_ST;
-		act.val[0].u.string = val.s.s;
-		act.val[1].type = NUMBER_ST;
-		act.val[1].u.number = 0;
-		rval = do_action(&ra_ctx, &act, _m);
-		destroy_avp(avp);
-		if (rval != 1) {
-			ERR("lcr: ERROR: do_action failed with return value <%d>\n", rval);
-			return -1;
-		}
-		
-		return 1;
-    }
-}
-
-
-/*
- * Checks if request comes from a gateway
- */
-int from_gw(struct sip_msg* _m, char* _s1, char* _s2)
-{
-    int i;
-    unsigned int src_addr;
-
-    src_addr = _m->rcv.src_ip.u.addr32[0];
-
-    for (i = 0; i < MAX_NO_OF_GWS; i++) {
-	    if ((*gws)[i].ip_addr == 0) {
-		    return -1;
-	    }
-	    if ((*gws)[i].ip_addr == src_addr) {
-		    return 1;
-	    }
-    }
-	
-    return -1;
-}
-
-
-/*
- * Checks if in-dialog request goes to gateway
- */
-int to_gw(struct sip_msg* _m, char* _s1, char* _s2)
-{
-    char host[16];
-    struct in_addr addr;
-    unsigned int i;
-	
-    if((_m->parsed_uri_ok == 0) && (parse_sip_msg_uri(_m) < 0)) {
-		ERR("lcr: Error while parsing the R-URI\n");
-		return -1;
-	}
-	
-    if (_m->parsed_uri.host.len > 15) {
-		return -1;
-    }
-    memcpy(host, _m->parsed_uri.host.s, _m->parsed_uri.host.len);
-    host[_m->parsed_uri.host.len] = 0;
-	
-    if (!inet_aton(host, &addr)) {
-		return -1;
-    }
-	
-    for (i = 0; i < MAX_NO_OF_GWS; i++) {
-		if ((*gws)[i].ip_addr == 0) {
-			return -1;
-		}
-		if ((*gws)[i].ip_addr == addr.s_addr) {
-			return 1;
-		}
-    }
-	
-    return -1;
-}
-
-
-/*
- * Frees contact list used by load_contacts function
- */
-static inline void free_contact_list(struct contact *curr) 
-{
-    struct contact *prev;
-    while (curr) {
-		prev = curr;
-		curr = curr->next;
-		pkg_free(prev);
-    }
-}
-
-
-/*
- * Loads contacts in destination set into "lcr_contact" AVP in reverse
- * priority order and associated each contact with Q_FLAG telling if
- * contact is the last one in its priority class.  Finally, removes
- * all branches from destination set.
- */
-int load_contacts(struct sip_msg* msg, char* key, char* value)
-{
-	str branch, *ruri;
-	qvalue_t q, ruri_q;
-	struct contact *contacts, *next, *prev, *curr;
-	int_str val;
-
-	/* Check if anything needs to be done */
-	if (nr_branches == 0) {
-	    DBG("lcr: Nothing to do - no branches!\n");
-	    return 1;
-	}
-	
-	ruri = GET_RURI(msg);
-	if (!ruri) {
-	    ERR("lcr: No Request-URI found\n");
-	    return -1;
-	}
-	ruri_q = get_ruri_q();
-	
-	init_branch_iterator();
-	while((branch.s = next_branch(&branch.len, &q, 0, 0, 0))) {
-	    if (q != ruri_q) {
-			goto rest;
-	    }
-	}
-	DBG("lcr: Nothing to do - all same q!\n");
-	return 1;
-	
- rest:
-	/* Insert Request-URI to contact list */
-	contacts = (struct contact *)pkg_malloc(sizeof(struct contact));
-	if (!contacts) {
-	    ERR("lcr: No memory for Request-URI\n");
-	    return -1;
-	}
-	contacts->uri.s = ruri->s;
-	contacts->uri.len = ruri->len;
-	contacts->q = ruri_q;
-	contacts->next = (struct contact *)0;
-	
-	/* Insert branch URIs to contact list in increasing q order */
-	init_branch_iterator();
-	while((branch.s = next_branch(&branch.len, &q, 0, 0, 0))) {
-	    next = (struct contact *)pkg_malloc(sizeof(struct contact));
-	    if (!next) {
-			ERR("lcr: No memory for branch URI\n");
-			free_contact_list(contacts);
-			return -1;
-	    }
-	    next->uri = branch;
-	    next->q = q;
-	    prev = (struct contact *)0;
-	    curr = contacts;
-	    while (curr && (curr->q < q)) {
-			prev = curr;
-			curr = curr->next;
-	    }
-	    if (!curr) {
-			next->next = (struct contact *)0;
-			prev->next = next;
-	    } else {
-			next->next = curr;
-			if (prev) {
-				prev->next = next;
-			} else {
-				contacts = next;
-			}
-	    }
-	}
-	
-	/* Assign values for q_flags */
-	curr = contacts;
-	curr->q_flag = 0;
-	while (curr->next) {
-	    if (curr->q < curr->next->q) {
-			curr->next->q_flag = Q_FLAG;
-	    } else {
-			curr->next->q_flag = 0;
-	    }
-	    curr = curr->next;
-	}
-	
-	/* Add contacts to "contacts" AVP */
-	curr = contacts;
-	while (curr) {
-	    val.s = curr->uri;
-	    add_avp(contact_avp_name_str|AVP_VAL_STR|(curr->q_flag),
-				contact_name, val);
-	    DBG("lcr: DEBUG: Loaded <%s>, q_flag <%d>\n",
-			val.s.s, curr->q_flag);
-	    curr = curr->next;
-	}
-	
-	/* Clear all branches */
-	clear_branches();
-
-	/* Free contacts list */
-	free_contact_list(contacts);
-	
-	return 1;
-}
-
-/*
- * Returns the value of the given AVP.
- * The default value is returned in case of missing AVP
- */
-static int get_timer_value(avp_ident_t *avp, int def_value)
-{
-	struct usr_avp	*ret_avp;
-	avp_value_t	avp_val;
-	unsigned int	i;
-	
-	/* avp is not defined, use the default value */
-	if (!avp) return def_value;
-	
-	ret_avp = search_avp_by_index(avp->flags,
-								  avp->name,
-								  &avp_val,
-								  avp->index);
-	/* avp is missing, use the default value */
-	if (!ret_avp) return def_value;
-
-	if (ret_avp->flags & AVP_VAL_STR) {
-		if (str2int(&avp_val.s, &i)) {
-			WARN("lcr: cannot convert AVP string value to int: %.*s\n", 
-				 STR_FMT(&avp_val.s));
-			return def_value;
-		}
-		return (int)i;
-	} else {
-		return avp_val.n;
-	}
-}
-
-/*
- * Adds to request a destination set that includes all highest priority
- * class contacts in "lcr_contact" AVP.   If called from a route block,
- * rewrites the request uri with first contact and adds the remaining
- * contacts as branches.  If called from failure route block, adds all
- * contacts as brances.  Removes added contacts from "lcr_contact" AVP.
- */
-int next_contacts(struct sip_msg* msg, char* key, char* value)
-{
-    struct search_state st;
-    struct usr_avp *avp, *prev;
-    int_str val;
-    struct action act;
-    int rval;
-	struct run_act_ctx ra_ctx;
-
-    if (is_route_type(REQUEST_ROUTE)) {
-		
-		/* Find first lcr_contact_avp value */
-		avp = search_first_avp(contact_avp_name_str, contact_name, &val, &st);
-		if (!avp) {
-			DBG("lcr: No AVPs -- we are done!\n");
-			return 1;
-		}
-		
-		/* Set Request-URI */
-		memset(&act, 0, sizeof(act));
-		act.type = SET_URI_T;
-		act.val[0].type = STRING_ST;
-		act.val[0].u.string = val.s.s;
-		init_run_actions_ctx(&ra_ctx);
-		rval = do_action(&ra_ctx, &act, msg);
-		if (rval != 1) {
-			destroy_avp(avp);
-			return rval;
-		}
-		DBG("lcr: R-URI is <%s>\n", val.s.s);
-		if (avp->flags & Q_FLAG) {
-			destroy_avp(avp);
-			/* Set fr_inv_timer */
-			val.n = get_timer_value(inv_timer_next_param, inv_timer_next);
-			if (add_avp(tm_timer_param.flags, tm_timer_param.name, val) != 0) {
-				ERR("lcr: setting of fr_inv_timer_avp failed\n");
-				return -1;
-			}
-			return 1;
-		}
-		
-		/* Append branches until out of branches or Q_FLAG is set */
-		prev = avp;
-		while ((avp = search_next_avp(&st, &val))) {
-			destroy_avp(prev);
-			memset(&act, 0, sizeof(act));
-			act.type = APPEND_BRANCH_T;
-			act.val[0].type = STRING_ST;
-			act.val[0].u.string = val.s.s;
-			act.val[1].type = NUMBER_ST;
-			act.val[1].u.number = 0;
-			init_run_actions_ctx(&ra_ctx);
-			rval = do_action(&ra_ctx, &act, msg);
-			if (rval != 1) {
-				destroy_avp(avp);
-				ERR("lcr: do_action failed with return value <%d>\n", rval);
-				return -1;
-			}
-			DBG("lcr: Branch is <%s>\n", val.s.s);
-			if (avp->flags & Q_FLAG) {
-				destroy_avp(avp);
-				val.n = get_timer_value(inv_timer_next_param, inv_timer_next);
-				if (add_avp(tm_timer_param.flags, tm_timer_param.name, val) != 0) {
-					ERR("lcr: setting of fr_inv_timer_avp failed\n");
-					return -1;
-				}
-				return 1;
-			}
-			prev = avp;
-		}
-		
-    } else { /* MODE_ONFAILURE */
-		
-		avp = search_first_avp(contact_avp_name_str, contact_name, &val, &st);
-		if (!avp) return -1;
-		
-		prev = avp;
-		do {
-			memset(&act, 0, sizeof(act));
-			act.type = APPEND_BRANCH_T;
-			act.val[0].type = STRING_ST;
-			act.val[0].u.string = val.s.s;
-			act.val[1].type = NUMBER_ST;
-			act.val[1].u.number = 0;
-			init_run_actions_ctx(&ra_ctx);
-			rval = do_action(&ra_ctx, &act, msg);
-			if (rval != 1) {
-				destroy_avp(avp);
-				return rval;
-			}
-			DBG("lcr: New branch is <%s>\n", val.s.s);
-			if (avp->flags & Q_FLAG) {
-				destroy_avp(avp);
-				return 1;
-			}
-			prev = avp;
-			avp = search_next_avp(&st, &val);
-			destroy_avp(prev);
-		} while (avp);
-		
-		/* Restore fr_inv_timer */
-		/* delete previous value */
-		if ((avp = search_first_avp(tm_timer_param.flags, tm_timer_param.name, 0, 0))) {
-			destroy_avp(avp);
-		}
-		
-		/* add new value */
-		val.n = get_timer_value(inv_timer_param, inv_timer);
-		DBG("lcr: val.n=%d!\n", val.n);
-		
-		if (add_avp(tm_timer_param.flags, tm_timer_param.name, val) != 0) {
-			ERR("lcr: Setting of fr_inv_timer_avp failed\n");
-			return -1;
-		}
-	}
-	
-	return 1;
-}

modules_s/lcr/lcr_mod.h

@@ -1,61 +0,0 @@
-/*
- * Various lcr related functions
- *
- * Copyright (C) 2005 Juha Heinanen
- *
- * This file is part of ser, a free SIP server.
- *
- * ser is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version
- *
- * For a license to use the ser software under conditions
- * other than those described here, or to purchase support for this
- * software, please contact iptel.org by e-mail at the following addresses:
- *    [email protected]
- *
- * ser is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License 
- * along with this program; if not, write to the Free Software 
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- *
- * History:
- * --------
- * 2005-02-06: created by jh
- */
-
-
-#ifndef LCR_MOD_H
-#define LCR_MOD_H
-
-#include <stdio.h>
-#include "../../parser/msg_parser.h"
-
-#define MAX_NO_OF_GWS 32
-
-/*
- * Type definitions
- */
-
-typedef enum sip_protos uri_transport;
-
-struct gw_info {
-    unsigned int ip_addr;
-    unsigned int port;
-    uri_type scheme;
-    uri_transport transport;
-    unsigned int prefix_len;
-    char prefix[16];
-};
-
-extern struct gw_info **gws;	/* Pointer to current gw table pointer */
-
-void print_gws (FILE *reply_file);
-int reload_gws (void);
-
-#endif /* LCR_MOD_H */

modules_s/lcr/lcr_rpc.c

@@ -1,104 +0,0 @@
-/*
- * Various lcr related functions
- *
- * Copyright (C) 2005 Juha Heinanen
- *
- * This file is part of ser, a free SIP server.
- *
- * ser is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version
- *
- * For a license to use the ser software under conditions
- * other than those described here, or to purchase support for this
- * software, please contact iptel.org by e-mail at the following addresses:
- *    [email protected]
- *
- * ser is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License 
- * along with this program; if not, write to the Free Software 
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-#include "lcr_mod.h"
-#include "lcr_rpc.h"
-
-static const char* reload_doc[2] = {
-	"Reload gateway table from database.",
-	0
-};
-
-
-static void reload(rpc_t* rpc, void* c)
-{
-	if (reload_gws () != 1) {
-		rpc->fault(c, 500, "LCR Gateway Reload Failed");
-	}
-}
-
-
-static const char* dump_doc[2] = {
-	"Dump the contents of the gateway table.",
-	0
-};
-
-
-static void dump (rpc_t* rpc, void* c)
-{
-	void* st;
-	unsigned int i;
-	uri_transport transport;
-	
-	for (i = 0; i < MAX_NO_OF_GWS; i++) {
-		if ((*gws)[i].ip_addr == 0) {
-			return;
-		}
-		
-		if (rpc->add(c, "{", &st) < 0) return;
-		
-		if ((*gws)[i].scheme == SIP_URI_T) {
-		    rpc->struct_add(st, "s", "scheme", "sip");
-		} else {
-		    rpc->struct_add(st, "s", "scheme", "sips");
-		}
-		if ((*gws)[i].port == 0) {
-			rpc->struct_printf(st, "host", "%d.%d.%d.%d",
-							   ((*gws)[i].ip_addr << 24) >> 24,
-							   (((*gws)[i].ip_addr >> 8) << 24) >> 24,
-							   (((*gws)[i].ip_addr >> 16) << 24) >> 24,
-							   (*gws)[i].ip_addr >> 24);
-		} else {
-			rpc->struct_printf(st, "host", "%d.%d.%d.%d:%d",
-							   ((*gws)[i].ip_addr << 24) >> 24,
-							   (((*gws)[i].ip_addr >> 8) << 24) >> 24,
-							   (((*gws)[i].ip_addr >> 16) << 24) >> 24,
-							   (*gws)[i].ip_addr >> 24,
-							   (*gws)[i].port);
-		}
-		transport = (*gws)[i].transport;
-		if (transport == PROTO_UDP) {
-			rpc->struct_add(st, "s", "transport", "UDP");
-		} else  if (transport == PROTO_TCP) {
-			rpc->struct_add(st, "s", "transport", "TCP");
-		} else  if (transport == PROTO_TLS) {
-			rpc->struct_add(st, "s", "transport", "TLS");
-		}else if (transport == PROTO_SCTP) {
-			rpc->struct_add(st, "s", "transport", "SCTP");
-		}
-		if ((*gws)[i].prefix_len) {
-			rpc->struct_add(st, "s", "prefix", (*gws)[i].prefix);
-		}
-	}
-}
-
-
-rpc_export_t lcr_rpc[] = {
-	{"lcr.reload", reload, reload_doc, 0},
-	{"lcr.dump",   dump,   dump_doc,   0},
-	{0, 0, 0, 0}
-};

modules_s/lcr/lcr_rpc.h

@@ -1,35 +0,0 @@
-/*
- * Various lcr related functions
- *
- * Copyright (C) 2005 Juha Heinanen
- *
- * This file is part of ser, a free SIP server.
- *
- * ser is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version
- *
- * For a license to use the ser software under conditions
- * other than those described here, or to purchase support for this
- * software, please contact iptel.org by e-mail at the following addresses:
- *    [email protected]
- *
- * ser is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License 
- * along with this program; if not, write to the Free Software 
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
- */
-
-#ifndef _LCR_RPC_H
-#define _LCR_RPC_H
-
-#include "../../rpc.h"
-
-extern rpc_export_t lcr_rpc[];
-
-#endif /* _LCR_RPC_H */

modules_s/lcr/ser-lcr.cfg

@@ -1,24 +0,0 @@
-#
-# Minimalistic SER configuration file that can be used to 
-# test the lcr module.
-#
-debug = 4
-fork = no
-children = 1
-log_stderror = yes
-listen=127.0.0.1
-
-loadpath "./modules"
-
-loadmodule "mysql"
-loadmodule "sl"
-loadmodule "tm"
-loadmodule "lcr"
-
-modparam("lcr", "db_url", "mysql://ser:heslo@localhost/ser")
-
-route {
-	load_gws();
-	t_relay();
-	break;
-}