Initial revision

src/include/nfs.h

@@ -0,0 +1,63 @@
+#ifndef	_NFS_H
+#define	_NFS_H
+
+#define SUNRPC_PORT	111
+
+#define PROG_PORTMAP	100000
+#define PROG_NFS	100003
+#define PROG_MOUNT	100005
+
+#define MSG_CALL	0
+#define MSG_REPLY	1
+
+#define PORTMAP_GETPORT	3
+
+#define MOUNT_ADDENTRY	1
+#define MOUNT_UMOUNTALL	4
+
+#define NFS_LOOKUP	4
+#define	NFS_READLINK	5
+#define NFS_READ	6
+
+#define NFS_FHSIZE	32
+
+#define NFSERR_PERM	1
+#define NFSERR_NOENT	2
+#define NFSERR_ACCES	13
+#define	NFSERR_ISDIR	21
+#define	NFSERR_INVAL	22
+
+/* Block size used for NFS read accesses.  A RPC reply packet (including  all
+ * headers) must fit within a single Ethernet frame to avoid fragmentation.
+ * Chosen to be a power of two, as most NFS servers are optimized for this.  */
+#define NFS_READ_SIZE	1024
+
+#define NFS_MAXLINKDEPTH 16
+
+struct rpc_t {
+	struct iphdr ip;
+	struct udphdr udp;
+	union {
+		uint8_t  data[300];		/* longest RPC call must fit!!!! */
+		struct {
+			uint32_t id;
+			uint32_t type;
+			uint32_t rpcvers;
+			uint32_t prog;
+			uint32_t vers;
+			uint32_t proc;
+			uint32_t data[1];
+		} call;
+		struct {
+			uint32_t id;
+			uint32_t type;
+			uint32_t rstatus;
+			uint32_t verifier;
+			uint32_t v2;
+			uint32_t astatus;
+			uint32_t data[1];
+		} reply;
+	} u;
+} PACKED;
+
+#endif	/* _NFS_H */