From 35a42a26dab6431386b12fdd54fefaa9ea6a96d0 Mon Sep 17 00:00:00 2001
From: daniel <xxltju324@gmail.com>
Date: Sun, 7 Apr 2024 10:21:28 +0800
Subject: [PATCH] add wait for ipv6 logic

---
 root/etc/init.d/dynv6        | 10 ++++++++--
 root/usr/bin/dynv6-update.sh | 17 +++++++++++++++++
 2 files changed, 25 insertions(+), 2 deletions(-)

diff --git a/root/etc/init.d/dynv6 b/root/etc/init.d/dynv6
index af278ff..202a274 100755
--- a/root/etc/init.d/dynv6
+++ b/root/etc/init.d/dynv6
@@ -1,6 +1,11 @@
 #!/bin/sh /etc/rc.common
 
-START=31
+## specify the log path for debugging
+exec > /root/dynv6.log 2>&1
+
+START=299
+
+
 
 
 stop(){
@@ -11,6 +16,7 @@ stop(){
 }
 
 start(){
-	/usr/bin/dynv6-update.sh
+	# avoid other service being blocked by the waiting ipv6 casuing deadlock
+	/usr/bin/dynv6-update.sh &
 	return 0
 }
\ No newline at end of file
diff --git a/root/usr/bin/dynv6-update.sh b/root/usr/bin/dynv6-update.sh
index 9b5c2a1..57ca917 100755
--- a/root/usr/bin/dynv6-update.sh
+++ b/root/usr/bin/dynv6-update.sh
@@ -78,6 +78,18 @@ dynv6_update_loop()
   done
 }
 
+wait_for_ipv6()                                                 
+{                                                               
+        ifstatus $1                                             
+        time=0                                                  
+        while [ -z "$(ifstatus $1 | grep l3_device)"  ]                                     
+        do                                                                                  
+                echo "wait ${time}s"                                                        
+                sleep 10s                                                                   
+                time=$((time+10))                                                           
+        done                                                                                
+}
+
 site_foreach()
 {
     load_site_cb(){
@@ -89,6 +101,11 @@ site_foreach()
         config_get token "$site" "token"
         config_get interface "$site" "interface" "any"
         config_get interval "$site" "interval" "60"
+        ##### wait ipv6 #######################
+        echo "start to wait for getting ipv6" #
+        wait_for_ipv6 $interface              #
+        echo "got ipv6"                       #
+        ##### wait ipv6 #######################
         device="$(ifstatus $interface 2>/dev/null| jsonfilter -e '@.l3_device' 2>/dev/null)"
         [ -z $device ] && device="any"
         [ -n "$zone" ] && [ -n "$device" ] && [ -n "$token" ] && {