1 files changed, 133 insertions, 0 deletions
diff --git a/heartbeat/send_ua.c b/heartbeat/send_ua.c
new file mode 100644
index 0000000..bd65e2c
--- /dev/null
+++ b/heartbeat/send_ua.c
@@ -0,0 +1,133 @@
+
+/*
+ * This program manages IPv6 address with OCF Resource Agent standard.
+ *
+ * Author: Huang Zhen <zhenh@cn.ibm.com>
+ * Copyright (c) 2004 International Business Machines
+ *
+ * This library 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 library 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.
+ */
+
+#include <IPv6addr.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <malloc.h>
+#include <unistd.h>
+#include <sys/socket.h>
+#include <arpa/inet.h> /* for inet_pton */
+#include <net/if.h> /* for if_nametoindex */
+#include <sys/ioctl.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <errno.h>
+
+static void usage_send_ua(const char* self);
+static void byebye(int nsig);
+
+int
+main(int argc, char* argv[])
+{
+	char*		ipv6addr;
+	int		count = UA_REPEAT_COUNT;
+	int		interval = 1000;	/* default 1000 msec */
+	int		ch;
+	int		i;
+	char*		cp;
+	char*		prov_ifname = NULL;
+	struct in6_addr	addr6;
+	struct sigaction act;
+
+	/* Check binary name */
+	if (argc < 4) {
+		usage_send_ua(argv[0]);
+		return OCF_ERR_ARGS;
+	}
+	while ((ch = getopt(argc, argv, "h?c:i:")) != EOF) {
+		switch(ch) {
+		case 'c': /* count option */
+			count = atoi(optarg);
+		    break;
+		case 'i': /* interval option */
+			interval = atoi(optarg);
+		    break;
+		case 'h':
+		case '?':
+		default:
+			usage_send_ua(argv[0]);
+			return OCF_ERR_ARGS;
+		}
+	}
+
+	/* set termination signal */
+	memset(&act, 0, sizeof(struct sigaction));
+	act.sa_flags &= ~SA_RESTART; /* redundant - to stress syscalls should fail */
+	act.sa_handler = byebye;
+	if ((sigemptyset(&act.sa_mask) < 0) || (sigaction(SIGTERM, &act, NULL) < 0)) {
+		printf("ERROR: Could not set handler for signal: %s", strerror(errno));
+		return OCF_ERR_GENERIC;
+	}
+
+	ipv6addr = argv[optind];
+
+	if (ipv6addr == NULL) {
+		printf("ERROR: Please set OCF_RESKEY_ipv6addr to the IPv6 address you want to manage.");
+		usage_send_ua(argv[0]);
+		return OCF_ERR_ARGS;
+	}
+
+	/* legacy option */
+	if ((cp = strchr(ipv6addr, '/'))) {
+		*cp=0;
+	}
+
+	prov_ifname = argv[optind+2];
+
+	if (inet_pton(AF_INET6, ipv6addr, &addr6) <= 0) {
+		printf("ERROR: Invalid IPv6 address [%s]", ipv6addr);
+		usage_send_ua(argv[0]);
+		return OCF_ERR_ARGS;
+	}
+
+	/* Check whether this system supports IPv6 */
+	if (access(IF_INET6, R_OK)) {
+		printf("ERROR: No support for INET6 on this system.");
+		return OCF_ERR_GENERIC;
+	}
+
+	/* Send unsolicited advertisement packet to neighbor */
+	for (i = 0; i < count; i++) {
+		send_ua(&addr6, prov_ifname);
+		usleep(interval * 1000);
+	}
+
+	return OCF_SUCCESS;
+}
+
+static void usage_send_ua(const char* self)
+{
+	printf("usage: %s [-i[=Interval]] [-c[=Count]] [-h] IPv6-Address Prefix Interface\n",self);
+	return;
+}
+
+/* Following code is copied from send_arp.c, linux-HA project. */
+void
+byebye(int nsig)
+{
+	(void)nsig;
+	/* Avoid an "error exit" log message if we're killed */
+	exit(0);
+}
+