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-rw-r--r--contrib/package/freifunk-watchdog/src/watchdog.h107
1 files changed, 107 insertions, 0 deletions
diff --git a/contrib/package/freifunk-watchdog/src/watchdog.h b/contrib/package/freifunk-watchdog/src/watchdog.h
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+++ b/contrib/package/freifunk-watchdog/src/watchdog.h
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+/*
+ * This program 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 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Copyright (C) 2009 Jo-Philipp Wich <xm@subsignal.org>
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdint.h>
+#include <stdlib.h>
+#include <syslog.h>
+#include <ctype.h>
+#include <errno.h>
+#include <dirent.h>
+#include <fcntl.h>
+#include <math.h>
+#include <time.h>
+#include <sys/stat.h>
+#include <sys/ioctl.h>
+#include <sys/socket.h>
+
+#include "ucix.h"
+#include "wireless.22.h"
+
+
+/* Check interval */
+#define INTERVAL 30
+
+/* How to call myself in the logs */
+#define SYSLOG_IDENT "Freifunk Watchdog"
+
+/* Wifi error action */
+#define WIFI_ACTION "/sbin/wifi", "/sbin/wifi"
+
+/* Crond error action */
+#define CRON_ACTION "/etc/init.d/cron", "/etc/init.d/cron", "restart"
+
+/* Fallback binary name (passed by makefile) */
+#ifndef BINARY
+#define BINARY "ffwatchd"
+#endif
+
+
+/* ifname/bssid/channel tuples */
+struct wifi_tuple {
+ char ifname[16];
+ char bssid[18];
+ int channel;
+ struct wifi_tuple *next;
+};
+
+/* structure to hold tuple-list and uci context during iteration */
+struct uci_itr_ctx {
+ struct wifi_tuple *list;
+ struct uci_context *ctx;
+};
+
+typedef struct wifi_tuple wifi_tuple_t;
+
+
+/* ioctl() helper (stolen from iwlib) */
+static inline int
+iw_ioctl(int skfd, /* Socket to the kernel */
+ const char * ifname, /* Device name */
+ int request, /* WE ID */
+ struct iwreq * pwrq) /* Fixed part of the request */
+{
+ /* Set device name */
+ strncpy(pwrq->ifr_ifrn.ifrn_name, ifname, 16);
+
+ /* Do the request */
+ return(ioctl(skfd, request, pwrq));
+}
+
+/* fork() & execl() helper */
+#define EXEC(x) \
+ do { \
+ switch(fork()) \
+ { \
+ case -1: \
+ syslog(LOG_CRIT, "Unable to fork child: %s", \
+ strerror(errno)); \
+ \
+ break; \
+ \
+ case 0: \
+ execl(x, NULL); \
+ syslog(LOG_CRIT, "Unable to execute action: %s", \
+ strerror(errno)); \
+ \
+ return 1; \
+ } \
+ } while(0)
+