wait_for_link

don't blindly execute the payload, wait for a link first at least

usr/bin/LED

@@ -88,6 +88,10 @@ function parse_state() {
     }
 
     case $1 in
+        "LINKSETUP")
+            parse_color "M"
+            parse_pattern "SLOW"
+            ;;
         "SETUP")
             parse_color "M"
             parse_pattern "SOLID"

usr/bin/shark_framework

@@ -98,6 +98,14 @@ function execute_upgrade() {
     }
 }
 
+function wait_for_link() {
+  LED LINKSETUP
+  while mii-tool eth0 | grep -q 'eth0: no link'; do
+    sleep 1
+  done
+  LED SETUP
+}
+
 function execute_payload() {
     $LOG "Executing PAYLOAD"
 
@@ -155,6 +163,7 @@ function enter_attack_mode() {
     stop_http
     stop_ssh
 
+    wait_for_link
     execute_payload
 
     enter_idle_mode