sessionctl.c

   1 #include <string.h>
   2 #include "l2tpns.h"
   3 #include "plugin.h"
   4 #include "control.h"
   5
   6 /* session control */
   7
   8 char const *cvs_id = "$Id: sessionctl.c,v 1.2 2005/05/10 06:48:16 bodea Exp $";
   9
  10 int plugin_api_version = PLUGIN_API_VERSION;
  11 static struct pluginfuncs *p = 0;
  12
  13 char *plugin_control_help[] = {
  14     "  drop USER|SID [REASON]                      Shutdown user session",
  15     "  kill USER|SID [REASON]                      Kill user session",
  16     0
  17 };
  18
  19 int plugin_init(struct pluginfuncs *funcs)
  20 {
  21     if (!funcs)
  22         return 0;
  23
  24     p = funcs;
  25     return 1;
  26 }
  27
  28 int plugin_control(struct param_control *data)
  29 {
  30     sessionidt session;
  31     sessiont *s = 0;
  32     char *end;
  33     char *reason;
  34
  35     if (data->argc < 1)
  36         return PLUGIN_RET_OK;
  37
  38     if (strcmp(data->argv[0], "drop") && strcmp(data->argv[0], "kill"))
  39         return PLUGIN_RET_OK; // not for us
  40
  41     if (!data->iam_master)
  42         return PLUGIN_RET_NOTMASTER;
  43
  44     if (data->argc < 2 || data->argc > 3)
  45     {
  46         data->response = NSCTL_RES_ERR;
  47         data->additional = "requires username or session id and optional reason";
  48         return PLUGIN_RET_STOP;
  49     }
  50
  51     if (!(session = strtol(data->argv[1], &end, 10)) || *end)
  52         session = p->get_session_by_username(data->argv[1]);
  53
  54     if (session)
  55         s = p->get_session_by_id(session);
  56
  57     if (!s || !s->ip)
  58     {
  59         data->response = NSCTL_RES_ERR;
  60         data->additional = "session not found";
  61         return PLUGIN_RET_STOP;
  62     }
  63
  64     if (data->argc > 2)
  65         reason = data->argv[2];
  66     else
  67         reason = "Requested by administrator.";
  68
  69     if (data->argv[0][0] == 'd')
  70         p->sessionshutdown(session, reason, 3, 0);
  71     else
  72         p->sessionkill(session, reason);
  73
  74     data->response = NSCTL_RES_OK;
  75     data->additional = 0;
  76
  77     return PLUGIN_RET_STOP;
  78 }