From 1058201ef0ba4ea34e71f07a3e3582c19ee93a1e Mon Sep 17 00:00:00 2001
From: Ronnie Sahlberg <ronniesahlberg@gmail.com>
Date: Tue, 31 May 2011 23:50:18 +1000
Subject: [PATCH] Add support for async version of NFS/FSINFO3 call

---
 include/libnfs-raw.h | 17 +++++++++++++++++
 nfs/nfs.c            | 28 ++++++++++++++++++++++++++++
 2 files changed, 45 insertions(+)

diff --git a/include/libnfs-raw.h b/include/libnfs-raw.h
index f3a413f..b141e61 100644
--- a/include/libnfs-raw.h
+++ b/include/libnfs-raw.h
@@ -462,6 +462,23 @@ int rpc_nfs_fsstat_async(struct rpc_context *rpc, rpc_cb cb, struct nfs_fh3 *fh,
 
 
 
+/*
+ * Call NFS/FSINFO
+ * Function returns
+ *  0 : The call was initiated. The callback will be invoked when the call completes.
+ * <0 : An error occured when trying to set up the call. 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 nfs daemon.
+ *                      data is FSINFO3res
+ * RPC_STATUS_ERROR   : An error occured when trying to contact the nfs daemon.
+ *                      data is the error string.
+ * RPC_STATUS_CANCEL : The connection attempt was aborted before it could complete.
+ *                     data is NULL.
+ */
+int rpc_nfs_fsinfo_async(struct rpc_context *rpc, rpc_cb cb, struct nfs_fh3 *fh, void *private_data);
+
+
 
 /*
  * Call NFS/READLINK
diff --git a/nfs/nfs.c b/nfs/nfs.c
index 34c0859..c21046a 100644
--- a/nfs/nfs.c
+++ b/nfs/nfs.c
@@ -537,6 +537,34 @@ int rpc_nfs_fsstat_async(struct rpc_context *rpc, rpc_cb cb, struct nfs_fh3 *fh,
 	return 0;
 }
 
+int rpc_nfs_fsinfo_async(struct rpc_context *rpc, rpc_cb cb, struct nfs_fh3 *fh, void *private_data)
+{
+	struct rpc_pdu *pdu;
+	FSINFO3args args;
+
+	pdu = rpc_allocate_pdu(rpc, NFS_PROGRAM, NFS_V3, NFS3_FSINFO, cb, private_data, (xdrproc_t)xdr_FSINFO3res, sizeof(FSINFO3res));
+	if (pdu == NULL) {
+		rpc_set_error(rpc, "Out of memory. Failed to allocate pdu for nfs/fsinfo call");
+		return -1;
+	}
+
+	args.fsroot.data.data_len = fh->data.data_len; 
+	args.fsroot.data.data_val = fh->data.data_val; 
+
+	if (xdr_FSINFO3args(&pdu->xdr, &args) == 0) {
+		rpc_set_error(rpc, "XDR error: Failed to encode FSINFO3args");
+		rpc_free_pdu(rpc, pdu);
+		return -2;
+	}
+
+	if (rpc_queue_pdu(rpc, pdu) != 0) {
+		rpc_set_error(rpc, "Out of memory. Failed to queue pdu for nfs/fsinfo call");
+		rpc_free_pdu(rpc, pdu);
+		return -3;
+	}
+
+	return 0;
+}
 
 int rpc_nfs_readlink_async(struct rpc_context *rpc, rpc_cb cb, struct nfs_fh3 *fh, void *private_data)
 {
-- 
2.34.1