Experemental per session traffic limiting.

[ppp.git] / pppd / auth.c

diff --git a/pppd/auth.c b/pppd/auth.c
index 727c69d4af8d92bf55924d95eef3edf1c3070b17..a1e9fd26a8ff8e2293a065b329d46482338b44a3 100644 (file)
--- a/pppd/auth.c
+++ b/pppd/auth.c
@@ -32,7 +32,7 @@
  * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
  */
 
-#define RCSID  "$Id: auth.c,v 1.77 2002/05/21 17:26:49 dfs Exp $"
+#define RCSID  "$Id: auth.c,v 1.78 2002/07/13 06:24:36 kad Exp $"
 
 #include <stdio.h>
 #include <stddef.h>
@@ -217,6 +217,10 @@ static int  set_noauth_addr __P((char **));
 static void check_access __P((FILE *, char *));
 static int  wordlist_count __P((struct wordlist *));
 
+#ifdef MAXOCTETS
+static void check_maxoctets __P((void *));
+#endif
+
 /*
  * Authentication-related options.
  */
@@ -827,6 +831,11 @@ np_up(unit, proto)
        if (maxconnect > 0)
            TIMEOUT(connect_time_expired, 0, maxconnect);
 
+#ifdef MAXOCTETS
+       if (maxoctets > 0)
+           TIMEOUT(check_maxoctets, NULL, maxoctets_timeout);
+#endif
+
        /*
         * Detach now, if the updetach option was given.
         */
@@ -846,6 +855,9 @@ np_down(unit, proto)
     if (--num_np_up == 0) {
        UNTIMEOUT(check_idle, NULL);
        UNTIMEOUT(connect_time_expired, NULL);
+#ifdef MAXOCTETS
+       UNTIMEOUT(check_maxoctets, NULL);
+#endif 
        new_phase(PHASE_NETWORK);
     }
 }
@@ -863,6 +875,43 @@ np_finished(unit, proto)
     }
 }
 
+#ifdef MAXOCTETS
+static void
+check_maxoctets(arg)
+    void *arg;
+{
+    int diff;
+    unsigned int used;
+
+    update_link_stats(ifunit);
+    link_stats_valid=0;
+    
+    switch(maxoctets_dir) {
+       case PPP_OCTETS_DIRECTION_IN:
+           used = link_stats.bytes_in;
+           break;
+       case PPP_OCTETS_DIRECTION_OUT:
+           used = link_stats.bytes_out;
+           break;
+       case PPP_OCTETS_DIRECTION_MAX:
+           used = (link_stats.bytes_in > link_stats.bytes_out) ? link_stats.bytes_in : link_stats.bytes_out;
+           break;
+       default:
+           used = link_stats.bytes_in+link_stats.bytes_out;
+           break;
+    }
+    diff = maxoctets - used;
+    if(diff < 0) {
+       notice("Traffic limit reached. Limit: %u Used: %u", maxoctets, used);
+       lcp_close(0, "Traffic limit");
+       need_holdoff = 0;
+       status = EXIT_TRAFFIC_LIMIT;
+    } else {
+        TIMEOUT(check_maxoctets, NULL, maxoctets_timeout);
+    }
+}
+#endif
+
 /*
  * check_idle - check whether the link has been idle for long
  * enough that we can shut it down.