add a callback to allow plugins to fetch values from the running config

Changes

@@ -1,7 +1,8 @@
-? Brendan O'Dea <bod@optusnet.com.au> 2.0.5
+* Tue Nov 9 2004 Brendan O'Dea <bod@optusnet.com.au> 2.0.5
 - Handle routing properly in lone-master case 
 - Fix intercepts:  don't double-snoop throttled customers, ensure
   byte/packet counts are only updated once
+- Add a callback to allow plugins to fetch values from the running config
 
 * Mon Nov 8 2004 Brendan O'Dea <bod@optusnet.com.au> 2.0.4
 - Added setrxspeed plugin

autosnoop.c

@@ -4,9 +4,9 @@
 
 /* set up intercept based on RADIUS reply */
 
-char const *cvs_id = "$Id: autosnoop.c,v 1.6 2004-11-09 06:02:37 bodea Exp $";
+char const *cvs_id = "$Id: autosnoop.c,v 1.7 2004-11-09 08:05:02 bodea Exp $";
 
-int __plugin_api_version = 1;
+int __plugin_api_version = PLUGIN_API_VERSION;
 struct pluginfuncs *p;
 
 int plugin_radius_response(struct param_radius_response *data)

autothrottle.c

@@ -4,9 +4,9 @@
 
 /* set up throttling based on RADIUS reply */
 
-char const *cvs_id = "$Id: autothrottle.c,v 1.7 2004-11-05 04:55:26 bodea Exp $";
+char const *cvs_id = "$Id: autothrottle.c,v 1.8 2004-11-09 08:05:02 bodea Exp $";
 
-int __plugin_api_version = 1;
+int __plugin_api_version = PLUGIN_API_VERSION;
 struct pluginfuncs *p;
 
 #define THROTTLE_KEY "lcp:interface-config"
@@ -64,8 +64,18 @@ int plugin_radius_response(struct param_radius_response *data)
 	{
 		if (strcmp(data->value, "yes") == 0)
 		{
-			p->log(3, 0, p->get_id_by_session(data->s), data->s->tunnel, "         Throttling user\n");
+		    	unsigned long *rate = p->getconfig("throttle_speed", UNSIGNED_LONG);
-			data->s->throttle_in = data->s->throttle_out = config->rl_rate;
+			if (rate)
+			{
+				if (*rate)
+					p->log(3, 0, p->get_id_by_session(data->s), data->s->tunnel, "         Throttling user to %dkb/s\n", *rate);
+				else
+					p->log(3, 0, p->get_id_by_session(data->s), data->s->tunnel, "         Not throttling user (throttle_speed=0)\n");
+
+				data->s->throttle_in = data->s->throttle_out = *rate;
+			}
+			else
+				p->log(1, 0, p->get_id_by_session(data->s), data->s->tunnel, "Not throttling user (can't get throttle_speed)\n");
 		}
 		else if (strcmp(data->value, "no") == 0)
 		{

garden.c

@@ -9,9 +9,9 @@
 
 /* walled garden */
 
-char const *cvs_id = "$Id: garden.c,v 1.11 2004-11-05 04:55:27 bodea Exp $";
+char const *cvs_id = "$Id: garden.c,v 1.12 2004-11-09 08:05:02 bodea Exp $";
 
-int __plugin_api_version = 1;
+int __plugin_api_version = PLUGIN_API_VERSION;
 static struct pluginfuncs *p = 0;
 
 static int iam_master = 0;	// We're all slaves! Slaves I tell you!

l2tpns.c

@@ -4,7 +4,7 @@
 // Copyright (c) 2002 FireBrick (Andrews & Arnold Ltd / Watchfront Ltd) - GPL licenced
 // vim: sw=8 ts=8
 
-char const *cvs_id_l2tpns = "$Id: l2tpns.c,v 1.46 2004-11-09 05:42:53 bodea Exp $";
+char const *cvs_id_l2tpns = "$Id: l2tpns.c,v 1.47 2004-11-09 08:05:02 bodea Exp $";
 
 #include <arpa/inet.h>
 #include <assert.h>
@@ -3469,6 +3469,7 @@ void update_config()
 	{
 		if (strcmp(config->plugins[i], config->old_plugins[i]) == 0)
 			continue;
+
 		if (*config->plugins[i])
 		{
 			// Plugin added
@@ -3761,6 +3762,29 @@ static void *open_plugin(char *plugin_name, int load)
 	return dlopen(path, RTLD_NOW);
 }
 
+// plugin callback to get a config value
+static void *getconfig(char *key, enum config_typet type)
+{
+	int i;
+
+	for (i = 0; config_values[i].key; i++)
+	{
+		if (!strcmp(config_values[i].key, key))
+		{
+			if (config_values[i].type == type)
+				return ((void *) config) + config_values[i].offset;
+
+			LOG(1, 0, 0, 0, "plugin requested config item \"%s\" expecting type %d, have type %d\n",
+				key, type, config_values[i].type);
+
+			return 0;
+		}
+	}
+
+	LOG(1, 0, 0, 0, "plugin requested unknown config item \"%s\"\n", key);
+	return 0;
+}
+
 void add_plugin(char *plugin_name)
 {
 	static struct pluginfuncs funcs = {
@@ -3773,6 +3797,7 @@ void add_plugin(char *plugin_name)
 		sessionkill,
 		radiusnew,
 		radiussend,
+		getconfig,
 	};
 
 	void *p = open_plugin(plugin_name, 1);

l2tpns.h

@@ -1,5 +1,5 @@
 // L2TPNS Global Stuff
-// $Id: l2tpns.h,v 1.30 2004-11-05 04:55:27 bodea Exp $
+// $Id: l2tpns.h,v 1.31 2004-11-09 08:05:02 bodea Exp $
 
 #ifndef __L2TPNS_H__
 #define __L2TPNS_H__
@@ -466,12 +466,13 @@ struct configt
 #endif
 };
 
+enum config_typet { INT, STRING, UNSIGNED_LONG, SHORT, BOOL, IP, MAC };
 struct config_descriptt
 {
 	char *key;
 	int offset;
 	int size;
-	enum { INT, STRING, UNSIGNED_LONG, SHORT, BOOL, IP, MAC } type;
+	enum config_typet type;
 };
 
 // arp.c

l2tpns.spec

@@ -1,6 +1,6 @@
 Summary: A high-speed clustered L2TP LNS
 Name: l2tpns
-Version: 2.0.4
+Version: 2.0.5
 Release: 1
 Copyright: GPL
 Group: System Environment/Daemons
@@ -41,8 +41,11 @@ rm -rf %{buildroot}
 %attr(755,root,root) /usr/lib/l2tpns
 
 %changelog
+* Tue Nov 9 2004 Brendan O'Dea <bod@optusnet.com.au> 2.0.5
+- 2.0.5 release, see /usr/share/doc/l2tpns-2.0.5/Changes
+
 * Mon Nov 8 2004 Brendan O'Dea <bod@optusnet.com.au> 2.0.4
-- 2.0.4 release, see /usr/share/doc/l2tpns-2.0.4/Changes
+- 2.0.4 release
 
 * Wed Nov 3 2004 Brendan O'Dea <bod@optusnet.com.au> 2.0.3
 - 2.0.3 release

plugin.h

@@ -1,7 +1,7 @@
 #ifndef __PLUGIN_H__
 #define __PLUGIN_H__
 
-#define PLUGIN_API_VERSION	1
+#define PLUGIN_API_VERSION	2
 #define MAX_PLUGIN_TYPES	30
 
 enum
@@ -34,6 +34,7 @@ struct pluginfuncs
 	void (*sessionkill)(sessionidt s, char *reason);
 	u16 (*radiusnew)(sessionidt s);
 	void (*radiussend)(u16 r, u8 state);
+	void *(*getconfig)(char *key, enum config_typet type);
 };
 
 struct param_pre_auth
@@ -76,12 +77,6 @@ struct param_timer
 	time_t time_now;
 };
 
-struct param_config
-{
-	char *key;
-	char *value;
-};
-
 struct param_control
 {
 	char *buf;

setrxspeed.c

@@ -4,9 +4,9 @@
 
 /* fudge up session rx speed if not set */
 
-char const *cvs_id = "$Id: setrxspeed.c,v 1.1 2004-11-05 02:38:59 bodea Exp $";
+char const *cvs_id = "$Id: setrxspeed.c,v 1.2 2004-11-09 08:05:03 bodea Exp $";
 
-int __plugin_api_version = 1;
+int __plugin_api_version = PLUGIN_API_VERSION;
 static struct pluginfuncs *p = 0;
 
 int plugin_post_auth(struct param_post_auth *data)

stripdomain.c

@@ -4,9 +4,9 @@
 
 /* strip domain part of username before sending RADIUS requests */
 
-char const *cvs_id = "$Id: stripdomain.c,v 1.4 2004-11-05 04:55:27 bodea Exp $";
+char const *cvs_id = "$Id: stripdomain.c,v 1.5 2004-11-09 08:05:03 bodea Exp $";
 
-int __plugin_api_version = 1;
+int __plugin_api_version = PLUGIN_API_VERSION;
 static struct pluginfuncs *p = 0;
 
 int plugin_pre_auth(struct param_pre_auth *data)