1 files changed, 131 insertions, 0 deletions
diff --git a/plugin_ppp.c b/plugin_ppp.c
new file mode 100644
index 0000000..1d6c56b
--- /dev/null
+++ b/plugin_ppp.c
@@ -0,0 +1,131 @@
+/* $Id: plugin_ppp.c 840 2007-09-09 12:17:42Z michael $
+ * $URL: https://ssl.bulix.org/svn/lcd4linux/trunk/plugin_ppp.c $
+ *
+ * plugin for ppp throughput
+ *
+ * Copyright (C) 2003 Michael Reinelt <michael@reinelt.co.at>
+ * Copyright (C) 2004 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net>
+ *
+ * This file is part of LCD4Linux.
+ *
+ * LCD4Linux is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * LCD4Linux is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+/* 
+ * exported functions:
+ *
+ * int plugin_init_ppp (void)
+ *  adds ppp() function
+ *
+ */
+
+#include "config.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+#include <sys/ioctl.h>
+
+#ifdef HAVE_NET_IF_PPP_H
+#include <net/if_ppp.h>
+#else
+#warning if_ppp.h not found. PPP support deactivated.
+#endif
+
+#include "debug.h"
+#include "plugin.h"
+#include "qprintf.h"
+#include "hash.h"
+
+#ifdef HAVE_NET_IF_PPP_H
+
+static HASH PPP;
+
+static int get_ppp_stats(void)
+{
+    int age;
+    int unit;
+    unsigned ibytes, obytes;
+    static int fd = -2;
+    struct ifpppstatsreq req;
+    char key[16], val[16];
+
+    /* reread every 10 msec only */
+    age = hash_age(&PPP, NULL);
+    if (age > 0 && age <= 10)
+	return 0;
+
+    /* open socket only once */
+    if (fd == -2) {
+	fd = socket(AF_INET, SOCK_DGRAM, 0);
+	if (fd == -1) {
+	    error("socket() failed: %s", strerror(errno));
+	    return -1;
+	}
+    }
+
+    for (unit = 0; unit < 8; unit++) {
+	memset(&req, 0, sizeof(req));
+	req.stats_ptr = (caddr_t) & req.stats;
+	qprintf(req.ifr__name, sizeof(req.ifr__name), "ppp%d", unit);
+
+	if (ioctl(fd, SIOCGPPPSTATS, &req) == 0) {
+	    ibytes = req.stats.p.ppp_ibytes;
+	    obytes = req.stats.p.ppp_obytes;
+	} else {
+	    ibytes = obytes = 0;
+	}
+	qprintf(key, sizeof(key), "Rx:%d", unit);
+	qprintf(val, sizeof(val), "%d", ibytes);
+	hash_put_delta(&PPP, key, val);
+	qprintf(key, sizeof(key), "Tx:%d", unit);
+	qprintf(val, sizeof(val), "%d", obytes);
+	hash_put_delta(&PPP, key, val);
+
+    }
+    return 0;
+}
+
+
+static void my_ppp(RESULT * result, RESULT * arg1, RESULT * arg2)
+{
+    double value;
+
+    if (get_ppp_stats() < 0) {
+	SetResult(&result, R_STRING, "");
+	return;
+    }
+    value = hash_get_delta(&PPP, R2S(arg1), NULL, R2N(arg2));
+    SetResult(&result, R_NUMBER, &value);
+}
+
+#endif
+
+
+int plugin_init_ppp(void)
+{
+    hash_create(&PPP);
+#ifdef HAVE_NET_IF_PPP_H
+    AddFunction("ppp", 2, my_ppp);
+#endif
+    return 0;
+}
+
+void plugin_exit_ppp(void)
+{
+    hash_destroy(&PPP);
+}