new version of nfs mount

1 files changed, 71 insertions, 0 deletions

diff --git a/isys/nfs_mount4.h b/isys/nfs_mount4.h
new file mode 100644
index 000000000..f3111d784
--- /dev/null
+++ b/isys/nfs_mount4.h
@@ -0,0 +1,71 @@
+/*
+ * We want to be able to compile mount on old kernels in such a way
+ * that the binary will work well on more recent kernels.
+ * Thus, if necessary we teach nfsmount.c the structure of new fields
+ * that will come later.
+ */
+#include "nfs_mountversion.h"
+
+#if KERNEL_NFS_MOUNT_VERSION >= 4
+
+/*
+ * The kernel includes are at least as good as this file.
+ * Use them.
+ */
+#include <linux/nfs_mount.h>
+
+#define NFS_FHSIZE 32
+#define NFS_PORT 2049
+#define NFS_VERSION 2
+
+
+#else /* KERNEL_NFS_MOUNT_VERSION < 4 */
+
+/*
+ * We know more than the kernel. Override the kernel defines.
+ * Check at runtime whether the running kernel can handle the new stuff.
+ */
+#define NFS_MOUNT_VERSION	4
+
+struct nfs2_fh {
+        char                    data[32];
+};
+struct nfs3_fh {
+        unsigned short          size;
+        unsigned char           data[64];
+};
+
+struct nfs_mount_data {
+	int		version;		/* 1 */
+	int		fd;			/* 1 */
+	struct nfs2_fh	old_root;		/* 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 */
+	struct sockaddr_in addr;		/* 1 */
+	char		hostname[256];		/* 1 */
+	int		namlen;			/* 2 */
+	unsigned int	bsize;			/* 3 */
+	struct nfs3_fh	root;			/* 4 */
+};
+
+/* bits in the flags field */
+
+#define NFS_MOUNT_SOFT		0x0001	/* 1 */
+#define NFS_MOUNT_INTR		0x0002	/* 1 */
+#define NFS_MOUNT_SECURE	0x0004	/* 1 */
+#define NFS_MOUNT_POSIX		0x0008	/* 1 */
+#define NFS_MOUNT_NOCTO		0x0010	/* 1 */
+#define NFS_MOUNT_NOAC		0x0020	/* 1 */
+#define NFS_MOUNT_TCP		0x0040	/* 2 */
+#define NFS_MOUNT_VER3		0x0080	/* 3 */
+#define NFS_MOUNT_KERBEROS	0x0100	/* 3 */
+#define NFS_MOUNT_NONLM		0x0200	/* 3 */
+
+#endif