small refactor*

server/pkg/go-nfs/nfsinterface.go

@@ -0,0 +1,190 @@
+package nfs
+
+// NFSProcedure is the valid RPC calls for the nfs service.
+type NFSProcedure uint32
+
+// NfsProcedure Codes
+const (
+	NFSProcedureNull NFSProcedure = iota
+	NFSProcedureGetAttr
+	NFSProcedureSetAttr
+	NFSProcedureLookup
+	NFSProcedureAccess
+	NFSProcedureReadlink
+	NFSProcedureRead
+	NFSProcedureWrite
+	NFSProcedureCreate
+	NFSProcedureMkDir
+	NFSProcedureSymlink
+	NFSProcedureMkNod
+	NFSProcedureRemove
+	NFSProcedureRmDir
+	NFSProcedureRename
+	NFSProcedureLink
+	NFSProcedureReadDir
+	NFSProcedureReadDirPlus
+	NFSProcedureFSStat
+	NFSProcedureFSInfo
+	NFSProcedurePathConf
+	NFSProcedureCommit
+)
+
+func (n NFSProcedure) String() string {
+	switch n {
+	case NFSProcedureNull:
+		return "Null"
+	case NFSProcedureGetAttr:
+		return "GetAttr"
+	case NFSProcedureSetAttr:
+		return "SetAttr"
+	case NFSProcedureLookup:
+		return "Lookup"
+	case NFSProcedureAccess:
+		return "Access"
+	case NFSProcedureReadlink:
+		return "ReadLink"
+	case NFSProcedureRead:
+		return "Read"
+	case NFSProcedureWrite:
+		return "Write"
+	case NFSProcedureCreate:
+		return "Create"
+	case NFSProcedureMkDir:
+		return "Mkdir"
+	case NFSProcedureSymlink:
+		return "Symlink"
+	case NFSProcedureMkNod:
+		return "Mknod"
+	case NFSProcedureRemove:
+		return "Remove"
+	case NFSProcedureRmDir:
+		return "Rmdir"
+	case NFSProcedureRename:
+		return "Rename"
+	case NFSProcedureLink:
+		return "Link"
+	case NFSProcedureReadDir:
+		return "ReadDir"
+	case NFSProcedureReadDirPlus:
+		return "ReadDirPlus"
+	case NFSProcedureFSStat:
+		return "FSStat"
+	case NFSProcedureFSInfo:
+		return "FSInfo"
+	case NFSProcedurePathConf:
+		return "PathConf"
+	case NFSProcedureCommit:
+		return "Commit"
+	default:
+		return "Unknown"
+	}
+}
+
+const timeoutStatus = NFSStatusIO
+
+// NFSStatus (nfsstat3) is a result code for nfs rpc calls
+type NFSStatus uint32
+
+// NFSStatus codes
+const (
+	NFSStatusOk          NFSStatus = 0
+	NFSStatusPerm        NFSStatus = 1
+	NFSStatusNoEnt       NFSStatus = 2
+	NFSStatusIO          NFSStatus = 5
+	NFSStatusNXIO        NFSStatus = 6
+	NFSStatusAccess      NFSStatus = 13
+	NFSStatusExist       NFSStatus = 17
+	NFSStatusXDev        NFSStatus = 18
+	NFSStatusNoDev       NFSStatus = 19
+	NFSStatusNotDir      NFSStatus = 20
+	NFSStatusIsDir       NFSStatus = 21
+	NFSStatusInval       NFSStatus = 22
+	NFSStatusFBig        NFSStatus = 27
+	NFSStatusNoSPC       NFSStatus = 28
+	NFSStatusROFS        NFSStatus = 30
+	NFSStatusMlink       NFSStatus = 31
+	NFSStatusNameTooLong NFSStatus = 63
+	NFSStatusNotEmpty    NFSStatus = 66
+	NFSStatusDQuot       NFSStatus = 69
+	NFSStatusStale       NFSStatus = 70
+	NFSStatusRemote      NFSStatus = 71
+	NFSStatusBadHandle   NFSStatus = 10001
+	NFSStatusNotSync     NFSStatus = 10002
+	NFSStatusBadCookie   NFSStatus = 10003
+	NFSStatusNotSupp     NFSStatus = 10004
+	NFSStatusTooSmall    NFSStatus = 10005
+	NFSStatusServerFault NFSStatus = 10006
+	NFSStatusBadType     NFSStatus = 10007
+	NFSStatusJukebox     NFSStatus = 10008
+)
+
+func (s NFSStatus) String() string {
+	switch s {
+	case NFSStatusOk:
+		return "Call Completed Successfull"
+	case NFSStatusPerm:
+		return "Not Owner"
+	case NFSStatusNoEnt:
+		return "No such file or directory"
+	case NFSStatusIO:
+		return "I/O error"
+	case NFSStatusNXIO:
+		return "I/O error: No such device"
+	case NFSStatusAccess:
+		return "Permission denied"
+	case NFSStatusExist:
+		return "File exists"
+	case NFSStatusXDev:
+		return "Attempt to do a cross device hard link"
+	case NFSStatusNoDev:
+		return "No such device"
+	case NFSStatusNotDir:
+		return "Not a directory"
+	case NFSStatusIsDir:
+		return "Is a directory"
+	case NFSStatusInval:
+		return "Invalid argument"
+	case NFSStatusFBig:
+		return "File too large"
+	case NFSStatusNoSPC:
+		return "No space left on device"
+	case NFSStatusROFS:
+		return "Read only file system"
+	case NFSStatusMlink:
+		return "Too many hard links"
+	case NFSStatusNameTooLong:
+		return "Name too long"
+	case NFSStatusNotEmpty:
+		return "Not empty"
+	case NFSStatusDQuot:
+		return "Resource quota exceeded"
+	case NFSStatusStale:
+		return "Invalid file handle"
+	case NFSStatusRemote:
+		return "Too many levels of remote in path"
+	case NFSStatusBadHandle:
+		return "Illegal NFS file handle"
+	case NFSStatusNotSync:
+		return "Synchronization mismatch"
+	case NFSStatusBadCookie:
+		return "Cookie is Stale"
+	case NFSStatusNotSupp:
+		return "Operation not supported"
+	case NFSStatusTooSmall:
+		return "Buffer or request too small"
+	case NFSStatusServerFault:
+		return "Unmapped error (EIO)"
+	case NFSStatusBadType:
+		return "Type not supported"
+	case NFSStatusJukebox:
+		return "Initiated, but too slow. Try again with new txn"
+	default:
+		return "unknown"
+	}
+}
+
+// DirOpArg is a common serialization used for referencing an object in a directory
+type DirOpArg struct {
+	Handle   []byte
+	Filename []byte
+}