[openwrt/openwrt] odhcp6c: add a odhcp6c.user placeholder script

[LEDE Commits]

dedeckeh pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/b4f3d93b5f3d82142e6af51486f4f99a57f33e29

commit b4f3d93b5f3d82142e6af51486f4f99a57f33e29
Author: Rui Salvaterra <rsalvaterra at gmail.com>
AuthorDate: Tue Mar 9 22:16:05 2021 +0000

    odhcp6c: add a odhcp6c.user placeholder script
    
    Document the existence of this feature. This allows the user to execute a script
    at each DHCPv6 event. This is useful, for example, as an ad-hoc way to update a
    DDNS entry when (and only when) required.
    
    Signed-off-by: Rui Salvaterra <rsalvaterra at gmail.com>
---
 package/network/ipv6/odhcp6c/Makefile           | 8 +++++++-
 package/network/ipv6/odhcp6c/files/odhcp6c.user | 1 +
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/package/network/ipv6/odhcp6c/Makefile b/package/network/ipv6/odhcp6c/Makefile
index c9eaaedb19..b3b2ea11fb 100644
--- a/package/network/ipv6/odhcp6c/Makefile
+++ b/package/network/ipv6/odhcp6c/Makefile
@@ -8,7 +8,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=odhcp6c
-PKG_RELEASE:=16
+PKG_RELEASE:=17
 
 PKG_SOURCE_PROTO:=git
 PKG_SOURCE_URL=$(PROJECT_GIT)/project/odhcp6c.git
@@ -42,12 +42,18 @@ define Package/odhcp6c/config
     default 0
 endef
 
+define Package/odhcp6c/conffiles
+/etc/odhcp6c.user
+endef
+
 define Package/odhcp6c/install
 	$(INSTALL_DIR) $(1)/usr/sbin/
 	$(INSTALL_BIN) $(PKG_BUILD_DIR)/odhcp6c $(1)/usr/sbin/
 	$(INSTALL_DIR) $(1)/lib/netifd/proto
 	$(INSTALL_BIN) ./files/dhcpv6.sh $(1)/lib/netifd/proto/dhcpv6.sh
 	$(INSTALL_BIN) ./files/dhcpv6.script $(1)/lib/netifd/
+	$(INSTALL_DIR) $(1)/etc/
+	$(INSTALL_CONF) ./files/odhcp6c.user $(1)/etc/
 endef
 
 $(eval $(call BuildPackage,odhcp6c))
diff --git a/package/network/ipv6/odhcp6c/files/odhcp6c.user b/package/network/ipv6/odhcp6c/files/odhcp6c.user
new file mode 100644
index 0000000000..f15a1b1761
--- /dev/null
+++ b/package/network/ipv6/odhcp6c/files/odhcp6c.user
@@ -0,0 +1 @@
+# This script is sourced by odhcp6c's dhcpv6.script at every DHCPv6 event.