make number of throttle buckets configurable

diff --git a/l2tpns.c b/l2tpns.c
index 3366139..1bcdf1d 100644 (file)
--- a/l2tpns.c
+++ b/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 1.33 2004-10-28 03:58:38 bodea Exp $";
+char const *cvs_id_l2tpns = "$Id: l2tpns.c,v 1.34 2004-10-29 04:01:11 bodea Exp $";
 
 #include <arpa/inet.h>
 #include <assert.h>
@@ -101,13 +101,14 @@ struct config_descriptt config_values[] = {
        CONFIG("save_state", save_state, BOOL),
        CONFIG("primary_radius", radiusserver[0], IP),
        CONFIG("secondary_radius", radiusserver[1], IP),
-       CONFIG("primary_radius_port",radiusport[0], SHORT),
-       CONFIG("secondary_radius_port",radiusport[1], SHORT),
+       CONFIG("primary_radius_port", radiusport[0], SHORT),
+       CONFIG("secondary_radius_port", radiusport[1], SHORT),
        CONFIG("radius_accounting", radius_accounting, BOOL),
        CONFIG("radius_secret", radiussecret, STRING),
        CONFIG("bind_address", bind_address, IP),
        CONFIG("send_garp", send_garp, BOOL),
        CONFIG("throttle_speed", rl_rate, UNSIGNED_LONG),
+       CONFIG("throttle_buckets", num_tbfs, INT),
        CONFIG("accounting_dir", accounting_dir, STRING),
        CONFIG("setuid", target_uid, INT),
        CONFIG("dump_speed", dump_speed, BOOL),
@@ -2477,8 +2478,11 @@ void initdata(int optdebug, char *optconfig)
        }
        memset(config, 0, sizeof(struct configt));
        time(&config->start_time);
-       config->debug = optdebug;
        strncpy(config->config_file, optconfig, strlen(optconfig));
+       config->debug = optdebug;
+       config->num_tbfs = MAXTBFS;
+       config->rl_rate = 28; // 28kbps
+
        if (!(tunnel = shared_malloc(sizeof(tunnelt) * MAXTUNNEL)))
        {
                log(0, 0, 0, 0, "Error doing malloc for tunnels: %s\n", strerror(errno));
@@ -2960,9 +2964,9 @@ int main(int argc, char *argv[])
        initplugins();
        initdata(optdebug, optconfig);
 
-       init_tbf();
-       init_cli(hostname);
        read_config_file();
+       init_tbf(config->num_tbfs);
+       init_cli(hostname);
 
        log(0, 0, 0, 0, "L2TPNS version " VERSION "\n");
        log(0, 0, 0, 0, "Copyright (c) 2003, 2004 Optus Internet Engineering\n");

diff --git a/l2tpns.h b/l2tpns.h
index 8727bf4..d362e21 100644 (file)
--- a/l2tpns.h
+++ b/l2tpns.h
@@ -1,5 +1,5 @@
 // L2TPNS Global Stuff
-// $Id: l2tpns.h,v 1.23 2004-10-28 03:58:51 bodea Exp $
+// $Id: l2tpns.h,v 1.24 2004-10-29 04:01:11 bodea Exp $
 
 #ifndef __L2TPNS_H__
 #define __L2TPNS_H__
@@ -43,23 +43,34 @@
 #define BUSY_WAIT_TIMEOUT      3000    // 5 minutes in 1/10th seconds to wait for radius to cleanup on shutdown
 
 // Constants
-#include "config.h"
-#ifndef PLUGINDIR
-#define PLUGINDIR      LIBDIR                  // Plugins
+#ifndef ETCDIR
+#define ETCDIR         "/etc/l2tpns"
 #endif
 
-#ifndef PLUGINCONF
-#define PLUGINCONF     ETCDIR                  // Plugin config dir
+#ifndef LIBDIR
+#define LIBDIR         "/usr/lib/l2tpns"
 #endif
 
-#ifndef DATADIR
-#define DATADIR                "/tmp"
+#ifndef STATEDIR
+#define STATEDIR       "/var/lib/l2tpns"
+#endif
+
+#ifndef PLUGINDIR
+#define PLUGINDIR      LIBDIR          // Plugins
+#endif
+
+#ifndef PLUGINCONF
+#define PLUGINCONF     ETCDIR          // Plugin config dir
 #endif
 
 #ifndef FLASHDIR
 #define FLASHDIR       ETCDIR
 #endif
 
+#ifndef DATADIR
+#define DATADIR                STATEDIR
+#endif
+
 #define TUNDEVICE      "/dev/net/tun"
 #define STATEFILE      DATADIR "/state.dump"           // State dump file
 #define CONFIGFILE     FLASHDIR "/startup-config"      // Configuration file
@@ -408,7 +419,9 @@ struct configt
 
        ipt             default_dns1, default_dns2;
 
-       unsigned long   rl_rate;
+       unsigned long   rl_rate;                        // throttle rate
+       int             num_tbfs;                       // number of throttle buckets
+
        int             save_state;
        char            accounting_dir[128];
        ipt             bind_address;
@@ -448,7 +461,6 @@ struct configt
        char            bgp_peer[2][64];
        u16             bgp_peer_as[2];
 #endif
-       char            hostname[256];                  // our hostname - set to gethostname() by default
 };
 
 struct config_descriptt

diff --git a/tbf.c b/tbf.c
index 459c049..b95b7d7 100644 (file)
--- a/tbf.c
+++ b/tbf.c
@@ -1,13 +1,8 @@
 // L2TPNS: token bucket filters
 
-char const *cvs_id_tbf = "$Id: tbf.c,v 1.7 2004-10-28 03:26:41 bodea Exp $";
-
-#define _GNU_SOURCE
+char const *cvs_id_tbf = "$Id: tbf.c,v 1.8 2004-10-29 04:01:11 bodea Exp $";
 
 #include <string.h>
-#include <unistd.h>
-#include <sys/mman.h>
-
 #include "l2tpns.h"
 #include "util.h"
 #include "tbf.h"
@@ -19,12 +14,12 @@ static int timer_chain = -1;        // Head of timer chain.
 
 static void tbf_run_queue(int tbf_id);
 
-void init_tbf(void)
+void init_tbf(int num_tbfs)
 {
-       if (!(filter_list = shared_malloc(sizeof(*filter_list) * MAXTBFS)))
+       if (!(filter_list = shared_malloc(sizeof(*filter_list) * num_tbfs)))
                return;
 
-       filter_list_size = MAXTBFS;
+       filter_list_size = num_tbfs;
        filter_list[0].sid = -1;        // Reserved.
 }
 //
@@ -101,13 +96,11 @@ int new_tbf(int sid, int max_credit, int rate, void (*f)(sessionidt, u8 *, int))
        int i;
        static int p = 0;
 
-       log(3,0,0,0, "Allocating new TBF (sess %d, rate %d, helper %p)\n", sid, rate, f);
+       log(4,0,0,0, "Allocating new TBF (sess %d, rate %d, helper %p)\n", sid, rate, f);
 
        if (!filter_list)
                return 0;       // Couldn't alloc memory!
 
-//    again:
-
        for (i = 0 ; i < filter_list_size ; ++i, p = (p+1)%filter_list_size ) {
                if (filter_list[p].sid)
                        continue;
@@ -123,33 +116,8 @@ int new_tbf(int sid, int max_credit, int rate, void (*f)(sessionidt, u8 *, int))
                return p;
        }
 
-#if 0
-       // All allocated filters are used! Increase the size of the allocated
-       // filters.
-
-       {
-               int new_size = filter_list_size * 2;
-               tbft *new = mremap(filter_list, filter_list_size * sizeof(*new), new_size * sizeof(*new), MREMAP_MAYMOVE);
-
-               if (new == MAP_FAILED)
-               {
-                       log(0,0,0,0, "Ran out of token bucket filters and mremap failed!  Sess %d will be un-throttled\n", sid);
-                       return 0;
-               }
-
-               i = filter_list_size;
-               filter_list_size = new_size;
-               filter_list = new;
-       }
-
-       for (; i < filter_list_size; ++i)
-               filter_list[i].sid = 0;
-
-       goto again;
-#else
        log(0,0,0,0, "Ran out of token bucket filters!  Sess %d will be un-throttled\n", sid);
        return 0;
-#endif
 }
 
 //

diff --git a/tbf.h b/tbf.h
index 7a6df12..bad2c37 100644 (file)
--- a/tbf.h
+++ b/tbf.h
@@ -33,7 +33,7 @@ typedef struct {
         char            packets[TBF_MAX_QUEUE][TBF_MAX_SIZE];
 } tbft;
 
-void init_tbf(void);
+void init_tbf(int num_tbfs);
 int tbf_run_timer(void);
 int tbf_queue_packet(int tbf_id, char * data, int size);
 int new_tbf(int sid, int max_credit, int rate, void (*f)(sessionidt, u8 *, int));