gluster-blockd: daemonize the utility

this patch,
deprecate ssh way of communicating between server nodes/pods
Reason: ssh way is hard to be accepted in container world (Kube).
        An another option kubeExec way seems to be a bit weird,
        to have uniform way of communication in container and
        non container worlds, we prefer RPC.

From now we communicate via RPC, using a static port 24009

Hence, we have two components,
server component -> gluster-blockd (daemon)
client component -> gluster-block  (cli)

Signed-off-by: Prasanna Kumar Kalever <prasanna.kalever@redhat.com>

1 files changed, 25 insertions, 0 deletions

diff --git a/rpc/block_clnt.c b/rpc/block_clnt.c
new file mode 100644
index 0000000..9e5b585
--- /dev/null
+++ b/rpc/block_clnt.c
@@ -0,0 +1,25 @@
+/*
+ * Please do not edit this file.
+ * It was generated using rpcgen.
+ */
+
+#include <memory.h> /* for memset */
+#include "block.h"
+
+/* Default timeout can be changed using clnt_control() */
+static struct timeval TIMEOUT = { 25, 0 };
+
+blockTrans *
+block_exec_1(char **argp, CLIENT *clnt)
+{
+	static blockTrans clnt_res;
+
+	memset((char *)&clnt_res, 0, sizeof(clnt_res));
+	if (clnt_call (clnt, BLOCK_EXEC,
+		(xdrproc_t) xdr_wrapstring, (caddr_t) argp,
+		(xdrproc_t) xdr_blockTrans, (caddr_t) &clnt_res,
+		TIMEOUT) != RPC_SUCCESS) {
+		return (NULL);
+	}
+	return (&clnt_res);
+}