start to lay the structure of the forwarded code

src/net/forwarded/entry.rs

@@ -0,0 +1,9 @@
+use super::Node;
+use crate::net::{address::Authority, Protocol};
+
+pub struct ForwardedEntry {
+    by_node: Option<Node>,
+    for_node: Option<Node>,
+    host: Option<Authority>,
+    proto: Option<Protocol>,
+}

src/net/forwarded/mod.rs

@@ -0,0 +1,22 @@
+//! rama support for the "Forwarded HTTP Extension"
+//!
+//! RFC: <https://datatracker.ietf.org/doc/html/rfc7239>
+
+use super::{address::Authority, Protocol};
+use std::net::IpAddr;
+
+mod obfuscated;
+#[doc(inline)]
+pub use obfuscated::ObfuscatedString;
+
+mod node;
+#[doc(inline)]
+pub use node::{Node, NodeName, NodePort};
+
+mod entry;
+#[doc(inline)]
+pub use entry::ForwardedEntry;
+
+pub struct Forwarded {
+    entries: Vec<ForwardedEntry>,
+}

src/net/forwarded/node/mod.rs

@@ -0,0 +1,12 @@
+mod name;
+#[doc(inline)]
+pub use name::NodeName;
+
+mod port;
+#[doc(inline)]
+pub use port::NodePort;
+
+pub struct Node {
+    name: NodeName,
+    port: Option<NodePort>,
+}

src/net/forwarded/node/name.rs

@@ -0,0 +1,8 @@
+use crate::net::forwarded::ObfuscatedString;
+use std::net::IpAddr;
+
+pub enum NodeName {
+    Unknown,
+    Ip(IpAddr),
+    ObfNode(ObfuscatedString),
+}

src/net/forwarded/node/port.rs

@@ -0,0 +1,6 @@
+use crate::net::forwarded::ObfuscatedString;
+
+pub enum NodePort {
+    Port(u16),
+    ObfPort(ObfuscatedString),
+}

src/net/forwarded/obfuscated.rs

@@ -0,0 +1 @@
+pub struct ObfuscatedString(String);

src/net/mod.rs

@@ -1,6 +1,7 @@
 //! protocol agnostic network modules
 
 pub mod address;
+pub mod forwarded;
 pub mod stream;
 pub mod user;