105 lines
2.6 KiB
C
105 lines
2.6 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 1.13 2004/11/30 07:14:45 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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if (!strncmp(data->key, THROTTLE_KEY, sizeof(THROTTLE_KEY) - 1))
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{
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char *sp = strchr(data->value, ' ');
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char type;
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int rate;
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if (!sp || sp - data->value < 4 ||
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strncmp("service-policy", data->value, sp - data->value))
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return PLUGIN_RET_OK;
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while (*sp == ' ') sp++;
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data->value = sp;
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if (!(sp = strchr(data->value, ' ')) ||
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(strncmp("input", data->value, sp - data->value) &&
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strncmp("output", data->value, sp - data->value)))
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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 (invalid type %.*s)\n",
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sp - data->value, data->value);
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return PLUGIN_RET_OK;
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}
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type = *data->value;
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while (*sp == ' ') sp++;
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data->value = sp;
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if ((rate = strtol(data->value, &sp, 10)) < 0 || *sp)
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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 (invalid rate %s)\n",
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data->value);
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return PLUGIN_RET_OK;
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}
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if (type == 'i')
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{
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data->s->throttle_in = rate;
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p->log(3, p->get_id_by_session(data->s), data->s->tunnel,
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" Throttling user input to %dkb/s\n",
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rate);
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}
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else
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{
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data->s->throttle_out = rate;
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p->log(3, p->get_id_by_session(data->s), data->s->tunnel,
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" Throttling user output to %dkb/s\n",
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rate);
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}
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}
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if (!strcmp(data->key, "throttle"))
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{
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if (!strcmp(data->value, "yes"))
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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"))
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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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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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