force implant building tests to run offline, document the need to kee…

…p the implant vendor dir updated

go-tests.sh

@@ -149,6 +149,7 @@ else
 fi
 
 # server / generate
+export GOPROXY=off
 if go test -tags=server,$TAGS ./server/generate -timeout 6h ; then
     :
 else

implant/README.md

@@ -1,5 +1,5 @@
 Implant
-========
+=======
 
 This directory contains the code for Sliver's implant, implant source code is dynamically
 rendered at runtime via the `generate` command. The code generation inserts the per-binary
@@ -11,3 +11,9 @@ that will be supported on different platforms.
 Platform agnostic code is implemented in `_generic.go` files, and can be compiled for any
 valid Go compiler target but only contains very generic commands/features.
 
+Development
+===========
+
+Before committing any changes to any implant files, run `go generate` in this directory. This
+will ensure the vendor directory is kept up to date so offline implant builds will function
+correctly.