118 lines
2.9 KiB
C
118 lines
2.9 KiB
C
#include <string.h>
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#include "l2tpns.h"
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#include "plugin.h"
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/* set up throttling based on RADIUS reply */
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char const *cvs_id = "$Id: autothrottle.c,v 1.11 2004-11-30 00:46:36 bodea Exp $";
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int plugin_api_version = PLUGIN_API_VERSION;
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struct pluginfuncs *p;
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#define THROTTLE_KEY "lcp:interface-config"
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int plugin_radius_response(struct param_radius_response *data)
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{
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char *t;
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int i = 0;
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int rate;
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if (strncmp(data->key, THROTTLE_KEY, sizeof(THROTTLE_KEY) - 1) == 0)
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{
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char *pt;
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if (strncmp(data->value, "serv", 4))
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return PLUGIN_RET_OK;
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pt = strdup(data->value);
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while ((t = strsep(&pt, " ")) != NULL)
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{
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if (strcmp(t, "serv") == 0)
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i = 1;
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else if (strcmp(t, "o") == 0 && i == 1)
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i = 3;
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else if (strcmp(t, "i") == 0 && i == 1)
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i = 2;
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else if (i > 1 )
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{
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if ((rate = strtol(t, (char **)NULL, 10)) < 0 )
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{
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p->log(3, p->get_id_by_session(data->s), data->s->tunnel,
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"Syntax Error: rate is not a number %s\n", t);
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free(pt);
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return PLUGIN_RET_OK;
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}
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switch (i)
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{
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case 2: // output
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data->s->throttle_out = rate;
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free(pt);
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p->log(3, p->get_id_by_session(data->s), data->s->tunnel,
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" Set output throttle rate %dkb/s\n", rate);
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return PLUGIN_RET_OK;
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case 3: //input
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data->s->throttle_in = rate;
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free(pt);
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p->log(3, p->get_id_by_session(data->s), data->s->tunnel,
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" Set input throttle rate %dkb/s\n", rate);
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return PLUGIN_RET_OK;
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default:
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p->log(1, p->get_id_by_session(data->s), data->s->tunnel,
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"Syntax error in rate limit AV pair: %s=%s\n", data->key, data->value);
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free(pt);
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return PLUGIN_RET_OK;
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}
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}
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}
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p->log(3, p->get_id_by_session(data->s), data->s->tunnel,
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"Unknown lcp:interface-config AV pair %s=%s\n",data->key, data->value);
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free(pt);
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return PLUGIN_RET_OK;
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}
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else if (strcmp(data->key, "throttle") == 0)
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{
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if (strcmp(data->value, "yes") == 0)
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{
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unsigned long *rate = p->getconfig("throttle_speed", UNSIGNED_LONG);
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if (rate)
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{
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if (*rate)
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p->log(3, p->get_id_by_session(data->s), data->s->tunnel,
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" Throttling user to %dkb/s\n", *rate);
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else
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p->log(3, p->get_id_by_session(data->s), data->s->tunnel,
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" Not throttling user (throttle_speed=0)\n");
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data->s->throttle_in = data->s->throttle_out = *rate;
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}
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else
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p->log(1, p->get_id_by_session(data->s), data->s->tunnel,
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"Not throttling user (can't get throttle_speed)\n");
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}
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else if (strcmp(data->value, "no") == 0)
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{
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p->log(3, p->get_id_by_session(data->s), data->s->tunnel,
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" Not throttling user\n");
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data->s->throttle_in = data->s->throttle_out = 0;
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}
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}
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p->log(4, p->get_id_by_session(data->s), data->s->tunnel,
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"autothrottle module ignoring AV pair %s=%s\n",
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data->key, data->value);
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return PLUGIN_RET_OK;
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}
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int plugin_init(struct pluginfuncs *funcs)
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{
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return ((p = funcs)) ? 1 : 0;
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}
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