From cc4d8102cd52f66036ed448e8b21e32f8d3fa7d8 Mon Sep 17 00:00:00 2001
From: Andrew Tridgell <tridge@samba.org>
Date: Sat, 26 May 2007 14:01:08 +1000
Subject: [PATCH] moved system specific ip code to system.c (This used to be
 ctdb commit 9de9e4ccda9665108baac12a8716b189d26340b1)

---
 ctdb/common/ctdb_recoverd.c   |  5 +++--
 ctdb/include/ctdb_private.h   |  2 ++
 ctdb/takeover/ctdb_takeover.c | 33 +++++++++++++++++----------------
 ctdb/takeover/system.c        | 32 ++++++++++++++++++++++++++++++++
 4 files changed, 54 insertions(+), 18 deletions(-)

diff --git a/ctdb/common/ctdb_recoverd.c b/ctdb/common/ctdb_recoverd.c
index 05dc649a33a..cd68a9ce00c 100644
--- a/ctdb/common/ctdb_recoverd.c
+++ b/ctdb/common/ctdb_recoverd.c
@@ -666,9 +666,10 @@ static void force_election(struct ctdb_context *ctdb, TALLOC_CTX *mem_ctx, uint3
 		return;
 	}
 
-	/* wait for one second to collect all responses */
+	/* wait for a few seconds to collect all responses */
 	timed_out = 0;
-	event_add_timed(ctdb->ev, mem_ctx, CONTROL_TIMEOUT(), timeout_func, ctdb);
+	event_add_timed(ctdb->ev, mem_ctx, timeval_current_ofs(3, 0), 
+			timeout_func, ctdb);
 	while (!timed_out) {
 		event_loop_once(ctdb->ev);
 	}
diff --git a/ctdb/include/ctdb_private.h b/ctdb/include/ctdb_private.h
index 291ac5fac10..418e4751ee0 100644
--- a/ctdb/include/ctdb_private.h
+++ b/ctdb/include/ctdb_private.h
@@ -894,6 +894,8 @@ int ctdb_ctrl_release_ip(struct ctdb_context *ctdb, struct timeval timeout,
 
 /* from takeover/system.c */
 int ctdb_sys_send_arp(const struct sockaddr_in *saddr, const char *iface);
+int ctdb_sys_take_ip(const char *ip, const char *interface);
+int ctdb_sys_release_ip(const char *ip, const char *interface);
 
 int ctdb_set_public_addresses(struct ctdb_context *ctdb, const char *alist);
 
diff --git a/ctdb/takeover/ctdb_takeover.c b/ctdb/takeover/ctdb_takeover.c
index e288cd9c617..63b5ed7dab6 100644
--- a/ctdb/takeover/ctdb_takeover.c
+++ b/ctdb/takeover/ctdb_takeover.c
@@ -73,16 +73,16 @@ int32_t ctdb_control_takeover_ip(struct ctdb_context *ctdb, TDB_DATA indata)
 {
 	int ret;
 	struct sockaddr_in *sin = (struct sockaddr_in *)indata.dptr;
-	char *cmdstr;
 	struct ctdb_takeover_arp *arp;
+	char *ip = inet_ntoa(sin->sin_addr);
 
-	cmdstr = talloc_asprintf(ctdb, "ip addr add %s/32 dev %s 2> /dev/null",
-				 inet_ntoa(sin->sin_addr), ctdb->takeover.interface);
-	CTDB_NO_MEMORY(ctdb, cmdstr);
-
-	DEBUG(0,("Taking over IP : %s\n", cmdstr));
-	system(cmdstr);
-	talloc_free(cmdstr);
+	DEBUG(0,("Takover of IP %s on interface %s\n", ip, ctdb->takeover.interface));
+	ret = ctdb_sys_take_ip(ip, ctdb->takeover.interface);
+	if (ret != 0) {
+		DEBUG(0,(__location__ " Failed to takeover IP %s on interface %s\n",
+			 ip, ctdb->takeover.interface));
+		return -1;
+	}
 
 	if (!ctdb->takeover.last_ctx) {
 		ctdb->takeover.last_ctx = talloc_new(ctdb);
@@ -107,21 +107,22 @@ int32_t ctdb_control_takeover_ip(struct ctdb_context *ctdb, TDB_DATA indata)
 int32_t ctdb_control_release_ip(struct ctdb_context *ctdb, TDB_DATA indata)
 {
 	struct sockaddr_in *sin = (struct sockaddr_in *)indata.dptr;
-	char *cmdstr;
 	TDB_DATA data;
 	char *ip = inet_ntoa(sin->sin_addr);
+	int ret;
+
+	DEBUG(0,("Release of IP %s on interface %s\n", ip, ctdb->takeover.interface));
 
 	/* stop any previous arps */
 	talloc_free(ctdb->takeover.last_ctx);
 	ctdb->takeover.last_ctx = NULL;
 
-	cmdstr = talloc_asprintf(ctdb, "ip addr del %s/32 dev %s 2> /dev/null",
-				 ip, ctdb->takeover.interface);
-		
-	DEBUG(0,("Releasing IP : %s\n", cmdstr));
-	system(cmdstr);
-
-	talloc_free(cmdstr);
+	ret = ctdb_sys_release_ip(ip, ctdb->takeover.interface);
+	if (ret != 0) {
+		DEBUG(0,(__location__ " Failed to release IP %s on interface %s\n",
+			 ip, ctdb->takeover.interface));
+		return -1;
+	}
 
 	/* send a message to all clients of this node telling them
 	   that the cluster has been reconfigured and they should
diff --git a/ctdb/takeover/system.c b/ctdb/takeover/system.c
index 1d808b4c028..8dcb4740c7e 100644
--- a/ctdb/takeover/system.c
+++ b/ctdb/takeover/system.c
@@ -126,3 +126,35 @@ int ctdb_sys_send_arp(const struct sockaddr_in *saddr, const char *iface)
 	close(s);
 	return 0;
 }
+
+/*
+  takeover an IP on an interface
+ */
+int ctdb_sys_take_ip(const char *ip, const char *interface)
+{
+	char *cmdstr;
+	cmdstr = talloc_asprintf(NULL, "/sbin/ip addr add %s/32 dev %s 2> /dev/null",
+				 ip, interface);
+	if (cmdstr == NULL) {
+		return -1;
+	}
+	system(cmdstr);
+	talloc_free(cmdstr);
+	return 0;
+}
+
+/*
+  release an IP on an interface
+ */
+int ctdb_sys_release_ip(const char *ip, const char *interface)
+{
+	char *cmdstr;
+	cmdstr = talloc_asprintf(NULL, "/sbin/ip addr del %s/32 dev %s 2> /dev/null",
+				 ip, interface);
+	if (cmdstr == NULL) {
+		return -1;
+	}
+	system(cmdstr);
+	talloc_free(cmdstr);
+	return 0;
+}
-- 
2.47.3