Build Tailscale Linux client and example Apache2 configuration

README.md

@@ -91,12 +91,14 @@ dist/
 │   ├── tailscaled.exe                # Standalone tailscaled for attack VM
 │   ├── tailscale.exe                 # Standalone tailscale CLI for attack VM
 │   ├── tailscaled                    # Linux tailscaled binary
+│   ├── tailscale                    # Linux tailscale client binary
 │   └── wintun.dll                    # WinTun driver (bundled)
 ├── x86/
 │   ├── beacon.dll
 │   ├── tailscaled.exe
 │   ├── tailscale.exe
 │   ├── tailscaled
+│   ├── tailscale
 │   └── wintun.dll
 └── ost/
     ├── tailscale_ost_bof.s1.py       # Outflank Stage1 integration

apache_example.conf

@@ -0,0 +1,53 @@
+<IfModule mod_ssl.c>
+<VirtualHost *:443>
+        # The ServerName directive sets the request scheme, hostname and port that
+        # the server uses to identify itself. This is used when creating
+        # redirection URLs. In the context of virtual hosts, the ServerName
+        # specifies what hostname must appear in the request's Host: header to
+        # match this virtual host. For the default virtual host (this file) this
+        # value is not decisive as it is used as a last resort host regardless.
+        # However, you must set it for any further virtual host explicitly.
+        ServerName cdn.example.org
+
+
+        SSLCertificateFile /etc/letsencrypt/live/cdn.example.org/fullchain.pem
+        SSLCertificateKeyFile /etc/letsencrypt/live/cdn.example.org/privkey.pem
+
+        ServerAdmin webmaster@localhost
+        DocumentRoot /var/www/html
+
+        # Available loglevels: trace8, ..., trace1, debug, info, notice, warn,
+        # error, crit, alert, emerg.
+        # It is also possible to configure the loglevel for particular
+        # modules, e.g.
+        #LogLevel info ssl:warn
+
+        ErrorLog ${APACHE_LOG_DIR}/error.log
+        CustomLog ${APACHE_LOG_DIR}/access.log combined
+
+        # For most configuration files from conf-available/, which are
+        # enabled or disabled at a global level, it is possible to
+        # include a line for only one particular virtual host. For example the
+        # following line enables the CGI configuration for this host only
+        # after it has been globally disabled with "a2disconf".
+        #Include conf-available/serve-cgi-bin.conf
+
+        SSLEngine On
+
+        ProxyRequests Off
+        ProxyPreserveHost On
+
+        # ProxyTimeout of 0 is not allowed on standard Apache2 configurations. This is in seconds so about 70 days before it times out
+        ProxyTimeout 100000000000 
+        ProxyPass        /ts2021 ws://localhost:5566/ts2021
+        ProxyPassReverse /ts2021 ws://localhost:5566/ts2021
+
+        ProxyPass        /derp ws://localhost:5566/derp
+        ProxyPassReverse /derp ws://localhost:5566/derp
+
+        ProxyPass        /key http://localhost:5566/key
+        ProxyPassReverse /key http://localhost:5566/key
+
+Include /etc/letsencrypt/options-ssl-apache.conf
+</VirtualHost>
+</IfModule>

tailscale/tailscaled/CMakeLists.txt

@@ -10,6 +10,7 @@ set(GO_OUTPUT_EXE ${CMAKE_BINARY_DIR}/tailscaled.${ARCH}/tailscaled.exe)
 set(GO_OUTPUT_CLI_EXE ${CMAKE_BINARY_DIR}/tailscaled.${ARCH}/tailscale.exe)
 
 set(GO_OUTPUT_LINUX ${CMAKE_BINARY_DIR}/tailscaled.${ARCH}/tailscaled)
+set(GO_OUTPUT_CLI_LINUX ${CMAKE_BINARY_DIR}/tailscaled.${ARCH}/tailscale)
 
 if(${ARCH} MATCHES "x64")
     set(GO_COMPILER "x86_64-w64-mingw32-gcc")
@@ -58,15 +59,26 @@ add_custom_command(
     DEPENDS ${GO_SRC_DIR}
 )
 
+add_custom_command(
+    OUTPUT ${GO_OUTPUT_CLI_LINUX}
+    COMMAND ${CMAKE_COMMAND} -E env
+        GOOS=linux GOARCH=${GO_ARCH} CGO_ENABLED=0
+        go build -trimpath -ldflags="-s -w" -o ${GO_OUTPUT_CLI_LINUX}
+    WORKING_DIRECTORY ${GO_SRC_CLI_DIR}
+    DEPENDS ${GO_SRC_CLI_DIR}
+)
+
 add_custom_target(tailscaled.${ARCH} ALL DEPENDS ${GO_OUTPUT})
 add_custom_target(tailscaled_cmd.${ARCH} ALL DEPENDS ${GO_OUTPUT_EXE})
 add_custom_target(tailscale_cmd.${ARCH} ALL DEPENDS ${GO_OUTPUT_CLI_EXE})
 add_custom_target(tailscaled_linux.${ARCH} ALL DEPENDS ${GO_OUTPUT_LINUX})
+add_custom_target(tailscale_linux.${ARCH} ALL DEPENDS ${GO_OUTPUT_CLI_LINUX})
 add_dependencies(tailscaled.${ARCH} beacon)
 
 install(FILES ${GO_OUTPUT} DESTINATION "pe/")
 install(FILES ${GO_OUTPUT_EXE} DESTINATION "${ARCH}/")
 install(FILES ${GO_OUTPUT_CLI_EXE} DESTINATION "${ARCH}/")
 install(FILES ${GO_OUTPUT_LINUX} DESTINATION "${ARCH}/")
+install(FILES ${GO_OUTPUT_CLI_LINUX} DESTINATION "${ARCH}/")
 install(FILES ${CMAKE_CURRENT_SOURCE_DIR}/${ARCH}/wintun.dll DESTINATION "${ARCH}/")
 install(FILES ${CMAKE_CURRENT_SOURCE_DIR}/tailscaled_ost_bof.s1.py DESTINATION "ost/")