Add UDP proxy support

README.md

@@ -4,7 +4,7 @@
 
 - a web UI for viewing configured TCP proxies
 - a Bitcask-backed data store for persisted proxy definitions
-- a TCP proxy runner powered by `inet.af/tcpproxy`
+- a TCP proxy runner built with Go's standard `net` package
 
 This README is written for working in a GitHub Codespace.
 
@@ -29,7 +29,7 @@ The project is functional enough to:
 - start the web app
 - load stored proxy definitions from `./infinite.db`
 - create new noodles from the UI
-- run active TCP proxies
+- run active TCP and UDP proxies
 - restrict a proxy to a specific source IP
 - update expiration values in the database every second while a proxy is active
 - close and delete expired noodles automatically
@@ -39,7 +39,7 @@ The project is functional enough to:
 Current limitations:
 
 - there is no REST API; management is currently through the server-rendered UI
-- proxy routing is TCP only in the current code path
+- protocols are limited to TCP and UDP
 
 ## Running In A Codespace
 
@@ -78,6 +78,7 @@ The main table includes an add row for creating a proxy with:
 
 - `Name`
 - `Allow From`: accepts `All` or a specific IP address, with the current client IP suggested
+- `Proto`: choose `TCP` or `UDP`
 - `Listen Port`
 - `Destination Port`
 - `Destination Host`