add a control to send gratious arps from the ctdb daemon

(This used to be ctdb commit 563819dd1acb344f95aabb4bad990b36f7ea4520)

1 files changed, 41 insertions, 0 deletions

diff --git a/ctdb/client/ctdb_client.c b/ctdb/client/ctdb_client.c
index b816d2d720..8957ad3145 100644
--- a/ctdb/client/ctdb_client.c
+++ b/ctdb/client/ctdb_client.c
@@ -2340,6 +2340,47 @@ int ctdb_ctrl_killtcp(struct ctdb_context *ctdb,
 }
 
 /*
+  send a gratious arp
+ */
+int ctdb_ctrl_gratious_arp(struct ctdb_context *ctdb, 
+		      struct timeval timeout, 
+		      uint32_t destnode,
+		      struct sockaddr_in *sin,
+		      const char *ifname)
+{
+	TDB_DATA data;
+	int32_t res;
+	int ret, len;
+	struct ctdb_control_gratious_arp *gratious_arp;
+	TALLOC_CTX *tmp_ctx = talloc_new(ctdb);
+
+
+	len = strlen(ifname)+1;
+	gratious_arp = talloc_size(tmp_ctx, 
+		offsetof(struct ctdb_control_gratious_arp, iface) + len);
+	CTDB_NO_MEMORY(ctdb, gratious_arp);
+
+	gratious_arp->sin = *sin;
+	gratious_arp->len = len;
+	memcpy(&gratious_arp->iface[0], ifname, len);
+
+
+	data.dsize = offsetof(struct ctdb_control_gratious_arp, iface) + len;
+	data.dptr  = (unsigned char *)gratious_arp;
+
+	ret = ctdb_control(ctdb, destnode, 0, CTDB_CONTROL_SEND_GRATIOUS_ARP, 0, data, NULL,
+			   NULL, &res, &timeout, NULL);
+	if (ret != 0 || res != 0) {
+		DEBUG(0,(__location__ " ctdb_control for gratious_arp failed\n"));
+		talloc_free(tmp_ctx);
+		return -1;
+	}
+
+	talloc_free(tmp_ctx);
+	return 0;
+}
+
+/*
   get a list of all tcp tickles that a node knows about for a particular vnn
  */
 int ctdb_ctrl_get_tcp_tickles(struct ctdb_context *ctdb,