From 4af5f4a9136a64af51e3eabfd60e5c4cf94cf77d Mon Sep 17 00:00:00 2001
From: Samin Guo <samin.guo@starfivetech.com>
Date: Tue, 6 Dec 2022 16:09:08 +0800
Subject: [PATCH] package/ifupdown-scripts: add hotplug support

When you plug the network cable, you can call ifplugd to automatically
release and obtain the IP

Signed-off-by: Samin Guo <samin.guo@starfivetech.com>
---
 package/ifupdown-scripts/ifupdown-scripts.mk | 28 ++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/package/ifupdown-scripts/ifupdown-scripts.mk b/package/ifupdown-scripts/ifupdown-scripts.mk
index 97f88959..0c8f6635 100644
--- a/package/ifupdown-scripts/ifupdown-scripts.mk
+++ b/package/ifupdown-scripts/ifupdown-scripts.mk
@@ -18,8 +18,21 @@ define IFUPDOWN_SCRIPTS_LOCALHOST
 endef
 
 IFUPDOWN_SCRIPTS_DHCP_IFACE = $(call qstrip,$(BR2_SYSTEM_DHCP))
+IFUPDOWN_SCRIPTS_DHCP_HOTPLUG = $(call qstrip,$(BR2_PACKAGE_IFPLUGD))
 
 ifneq ($(IFUPDOWN_SCRIPTS_DHCP_IFACE),)
+ifneq ($(IFUPDOWN_SCRIPTS_DHCP_HOTPLUG),)
+define IFUPDOWN_SCRIPTS_DHCP
+	( \
+		echo ; \
+		echo "allow-hotplug $(IFUPDOWN_SCRIPTS_DHCP_IFACE)"; \
+		echo "iface $(IFUPDOWN_SCRIPTS_DHCP_IFACE) inet dhcp"; \
+		echo "  pre-up /etc/network/nfs_check"; \
+		echo "  wait-delay 15"; \
+		echo "  hostname \$$(hostname)"; \
+	) >> $(TARGET_DIR)/etc/network/interfaces
+endef
+else
 define IFUPDOWN_SCRIPTS_DHCP
 	( \
 		echo ; \
@@ -30,6 +43,7 @@ define IFUPDOWN_SCRIPTS_DHCP
 		echo "  hostname \$$(hostname)"; \
 	) >> $(TARGET_DIR)/etc/network/interfaces
 endef
+endif
 define IFUPDOWN_SCRIPTS_DHCP_OPENRC
 	echo "ifup $(IFUPDOWN_SCRIPTS_DHCP_IFACE)" \
 		> $(TARGET_DIR)/etc/ifup.$(IFUPDOWN_SCRIPTS_DHCP_IFACE)
@@ -39,8 +53,21 @@ endef
 endif
 
 IFUPDOWN_SCRIPTS_DHCP_DUAL_IFACE = $(call qstrip,$(BR2_SYSTEM_DHCP_DUAL))
+IFUPDOWN_SCRIPTS_DHCP_DUAL_IFACE_HOTPLUG = $(call qstrip,$BR2_PACKAGE_IFPLUGD))
 
 ifneq ($(IFUPDOWN_SCRIPTS_DHCP_DUAL_IFACE),)
+ifneq ($(IFUPDOWN_SCRIPTS_DHCP_DUAL_IFACE_HOTPLUG),)
+define IFUPDOWN_SCRIPTS_DHCP_DUAL
+	( \
+		echo ; \
+		echo "allow-hotplug $(IFUPDOWN_SCRIPTS_DHCP_DUAL_IFACE)"; \
+		echo "iface $(IFUPDOWN_SCRIPTS_DHCP_DUAL_IFACE) inet dhcp"; \
+		echo "  pre-up /etc/network/nfs_check"; \
+		echo "  wait-delay 15"; \
+		echo "  hostname \$$(hostname)"; \
+	) >> $(TARGET_DIR)/etc/network/interfaces
+endef
+else
 define IFUPDOWN_SCRIPTS_DHCP_DUAL
 	( \
 		echo ; \
@@ -51,6 +78,7 @@ define IFUPDOWN_SCRIPTS_DHCP_DUAL
 		echo "  hostname \$$(hostname)"; \
 	) >> $(TARGET_DIR)/etc/network/interfaces
 endef
+endif
 define IFUPDOWN_SCRIPTS_DHCP_DUAL_OPENRC
 	echo "ifup $(IFUPDOWN_SCRIPTS_DHCP_DUAL_IFACE)" \
 		> $(TARGET_DIR)/etc/ifup.$(IFUPDOWN_SCRIPTS_DHCP_DUAL_IFACE)