[PATCH] A basic NFSv4 client for 2.5.x

Define the new NFSv4 data structure for passing user information
from the 'mount' program in nfs4_mount.h.

If CONFIG_NFS_V4 is defined
        Add code to parse the mount structure into the superblock.
        Declare the NFSv4 filesystem to the VFS.

1 files changed, 70 insertions, 0 deletions

diff --git a/include/linux/nfs4_mount.h b/include/linux/nfs4_mount.h
new file mode 100644
index 000000000000..9a782c2bbdd3
--- /dev/null
+++ b/include/linux/nfs4_mount.h
@@ -0,0 +1,70 @@
+#ifndef _LINUX_NFS4_MOUNT_H
+#define _LINUX_NFS4_MOUNT_H
+
+/*
+ *  linux/include/linux/nfs4_mount.h
+ *
+ *  Copyright (C) 2002  Trond Myklebust
+ *
+ *  structure passed from user-space to kernel-space during an nfsv4 mount
+ */
+
+/*
+ * WARNING!  Do not delete or change the order of these fields.  If
+ * a new field is required then add it to the end.  The version field
+ * tracks which fields are present.  This will ensure some measure of
+ * mount-to-kernel version compatibility.  Some of these aren't used yet
+ * but here they are anyway.
+ */
+#define NFS4_MOUNT_VERSION	1
+
+struct nfs_string {
+	unsigned int len;
+	const char* data;
+};
+
+struct nfs4_mount_data {
+	int version;				/* 1 */
+	int flags;				/* 1 */
+	int rsize;				/* 1 */
+	int wsize;				/* 1 */
+	int timeo;				/* 1 */
+	int retrans;				/* 1 */
+	int acregmin;				/* 1 */
+	int acregmax;				/* 1 */
+	int acdirmin;				/* 1 */
+	int acdirmax;				/* 1 */
+
+	/* see the definition of 'struct clientaddr4' in RFC3010 */
+	struct nfs_string client_addr;		/* 1 */
+
+	/* Mount path */
+	struct nfs_string mnt_path;		/* 1 */
+
+	/* Server details */
+	struct nfs_string hostname;		/* 1 */
+	/* Server IP address */
+	unsigned int host_addrlen;		/* 1 */
+	struct sockaddr* host_addr;		/* 1 */
+
+	/* Transport protocol to use */
+	int proto;				/* 1 */
+
+	/* Pseudo-flavours to use for authentication. See RFC2623 */
+	int auth_flavourlen;			/* 1 */
+	int *auth_flavours;			/* 1 */
+};
+
+/* bits in the flags field */
+/* Note: the fields that correspond to existing NFSv2/v3 mount options
+ * 	 should mirror the values from include/linux/nfs_mount.h
+ */
+
+#define NFS4_MOUNT_SOFT		0x0001	/* 1 */
+#define NFS4_MOUNT_INTR		0x0002	/* 1 */
+#define NFS4_MOUNT_NOCTO	0x0010	/* 1 */
+#define NFS4_MOUNT_NOAC		0x0020	/* 1 */
+#define NFS4_MOUNT_STRICTLOCK	0x1000	/* 1 */
+#define NFS4_MOUNT_FLAGMASK	0xFFFF
+
+#endif