From fd59fd0da36b43eaa0f6d038b8c711a15b3f795b Mon Sep 17 00:00:00 2001
From: Ronnie Sahlberg <ronniesahlberg@gmail.com>
Date: Sun, 26 Jun 2011 18:52:03 +1000
Subject: [PATCH] add a function for portmap/callit for the low level raw
 interface

---
 include/libnfs-raw.h | 15 +++++++++++++++
 portmap/portmap.c    | 31 +++++++++++++++++++++++++++++++
 2 files changed, 46 insertions(+)

diff --git a/include/libnfs-raw.h b/include/libnfs-raw.h
index bd23dc1..34e5f87 100644
--- a/include/libnfs-raw.h
+++ b/include/libnfs-raw.h
@@ -103,6 +103,21 @@ int rpc_pmap_null_async(struct rpc_context *rpc, rpc_cb cb, void *private_data);
 int rpc_pmap_getport_async(struct rpc_context *rpc, int program, int version, rpc_cb cb, void *private_data);
 
 
+/*
+ * Call PORTMAPPER/CALLIT.
+ * Function returns
+ *  0 : The connection was initiated. Once the connection establish finishes, the callback will be invoked.
+ * <0 : An error occured when trying to set up the connection. The callback will not be invoked.
+ *
+ * When the callback is invoked, status indicates the result:
+ * RPC_STATUS_SUCCESS : We got a successful response from the portmapper daemon
+ *                      data is a 'pmap_call_result' pointer.
+ * RPC_STATUS_ERROR   : An error occured when trying to contact the portmapper.
+ *                      data is the error string.
+ * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
+ *                     data is NULL.
+ */
+int rpc_pmap_callit_async(struct rpc_context *rpc, int program, int version, int procedure, const char *data, int datalen, rpc_cb cb, void *private_data);
 
 /* 
  * MOUNT FUNCTIONS
diff --git a/portmap/portmap.c b/portmap/portmap.c
index d8015d9..07aa912 100644
--- a/portmap/portmap.c
+++ b/portmap/portmap.c
@@ -72,3 +72,34 @@ int rpc_pmap_getport_async(struct rpc_context *rpc, int program, int version, rp
 
 	return 0;
 }
+
+int rpc_pmap_callit_async(struct rpc_context *rpc, int program, int version, int procedure, const char *data, int datalen, rpc_cb cb, void *private_data)
+{
+	struct rpc_pdu *pdu;
+	struct pmap_call_args ca;
+
+	pdu = rpc_allocate_pdu(rpc, PMAP_PROGRAM, PMAP_V2, PMAP_CALLIT, cb, private_data, (xdrproc_t)xdr_pmap_call_result, sizeof(pmap_call_result));
+	if (pdu == NULL) {
+		rpc_set_error(rpc, "Out of memory. Failed to allocate pdu for portmap/callit call");
+		return -1;
+	}
+
+	ca.prog = program;
+	ca.vers = version;
+	ca.proc = procedure;
+	ca.args.args_len = datalen;
+	ca.args.args_val = data;
+
+	if (xdr_pmap_call_args(&pdu->xdr, &ca) == 0) {
+		rpc_set_error(rpc, "XDR error: Failed to encode data for portmap/callit call");
+		rpc_free_pdu(rpc, pdu);
+		return -1;
+	}
+
+	if (rpc_queue_pdu(rpc, pdu) != 0) {
+		rpc_set_error(rpc, "Failed to queue portmap/callit pdu: %s", rpc_get_error(rpc));
+		return -1;
+	}
+
+	return 0;
+}
-- 
2.34.1