add first definitions

src/cfdp/mod.rs

@@ -0,0 +1,38 @@
+use num_enum::{IntoPrimitive, TryFromPrimitive};
+#[cfg(feature = "serde")]
+use serde::{Deserialize, Serialize};
+
+pub const CFDP_VERSION_2_NAME: &str = "CCSDS 727.0-B-5";
+pub const CFDP_VERSION_2: u8 = 0b001;
+
+#[derive(Debug, Copy, Clone, PartialEq, Eq, TryFromPrimitive, IntoPrimitive)]
+#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[repr(u8)]
+pub enum PduType {
+    FileDirective = 0,
+    FileData = 1,
+}
+
+#[derive(Debug, Copy, Clone, PartialEq, Eq, TryFromPrimitive, IntoPrimitive)]
+#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[repr(u8)]
+pub enum Direction {
+    TowardsReceiver = 0,
+    TowardsSender = 1,
+}
+
+#[derive(Debug, Copy, Clone, PartialEq, Eq, TryFromPrimitive, IntoPrimitive)]
+#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[repr(u8)]
+pub enum TransmissionMode {
+    Acknowledged = 0,
+    Unacknowledged = 1,
+}
+
+#[derive(Debug, Copy, Clone, PartialEq, Eq, TryFromPrimitive, IntoPrimitive)]
+#[cfg_attr(feature = "serde", derive(Serialize, Deserialize))]
+#[repr(u8)]
+pub enum CrcFlag {
+    NoCrc = 0,
+    WithCrc = 1,
+}

src/lib.rs

@@ -68,6 +68,7 @@ use std::error::Error;
 #[cfg(feature = "serde")]
 use serde::{Deserialize, Serialize};
 
+pub mod cfdp;
 pub mod ecss;
 pub mod tc;
 pub mod time;