[openwrt/openwrt] 6in4: support multiple additional user prefixes

[LEDE Commits]

dedeckeh pushed a commit to openwrt/openwrt.git, branch master:
https://git.lede-project.org/e83bc5e3c7531fe1a4ac090d49235274ba04b417

commit e83bc5e3c7531fe1a4ac090d49235274ba04b417
Author: Jo-Philipp Wich <jo at mein.io>
AuthorDate: Wed Feb 14 14:58:08 2018 +0100

    6in4: support multiple additional user prefixes
    
    Support configuration in the form...
    
        list ip6prefix 2001:db8:1234::/64
        list ip6prefix 2001:db8:5678::/64
    
    ... to allow specifying multiple routed IPv6 prefixes.
    
    Implements feature request FS#1361.
    
    Signed-off-by: Jo-Philipp Wich <jo at mein.io>
    Acked-by: Hans Dedecker <dedeckeh at gmail.com>
---
 package/network/ipv6/6in4/Makefile      |  2 +-
 package/network/ipv6/6in4/files/6in4.sh | 15 ++++++++++-----
 2 files changed, 11 insertions(+), 6 deletions(-)

diff --git a/package/network/ipv6/6in4/Makefile b/package/network/ipv6/6in4/Makefile
index 34227ce..8ff4730 100644
--- a/package/network/ipv6/6in4/Makefile
+++ b/package/network/ipv6/6in4/Makefile
@@ -8,7 +8,7 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=6in4
-PKG_VERSION:=24
+PKG_VERSION:=25
 PKG_RELEASE:=1
 PKG_LICENSE:=GPL-2.0
 
diff --git a/package/network/ipv6/6in4/files/6in4.sh b/package/network/ipv6/6in4/files/6in4.sh
index 786f37f..941dc43 100755
--- a/package/network/ipv6/6in4/files/6in4.sh
+++ b/package/network/ipv6/6in4/files/6in4.sh
@@ -22,13 +22,18 @@ proto_6in4_update() {
 	' "$1" "$@"
 }
 
+proto_6in4_add_prefix() {
+	append "$3" "$1"
+}
+
 proto_6in4_setup() {
 	local cfg="$1"
 	local iface="$2"
 	local link="6in4-$cfg"
 
-	local mtu ttl tos ipaddr peeraddr ip6addr ip6prefix tunlink tunnelid username password updatekey
-	json_get_vars mtu ttl tos ipaddr peeraddr ip6addr ip6prefix tunlink tunnelid username password updatekey
+	local mtu ttl tos ipaddr peeraddr ip6addr ip6prefix ip6prefixes tunlink tunnelid username password updatekey
+	json_get_vars mtu ttl tos ipaddr peeraddr ip6addr tunlink tunnelid username password updatekey
+	json_for_each_item proto_6in4_add_prefix ip6prefix ip6prefixes
 
 	[ -z "$peeraddr" ] && {
 		proto_notify_error "$cfg" "MISSING_ADDRESS"
@@ -61,10 +66,10 @@ proto_6in4_setup() {
 		proto_add_ipv6_route "::" 0 "" "" "" "$local6/$mask6"
 	}
 
-	[ -n "$ip6prefix" ] && {
+	for ip6prefix in $ip6prefixes; do
 		proto_add_ipv6_prefix "$ip6prefix"
 		proto_add_ipv6_route "::" 0 "" "" "" "$ip6prefix"
-	}
+	done
 
 	proto_add_tunnel
 	json_add_string mode sit
@@ -122,7 +127,7 @@ proto_6in4_init_config() {
 
 	proto_config_add_string "ipaddr"
 	proto_config_add_string "ip6addr"
-	proto_config_add_string "ip6prefix"
+	proto_config_add_array "ip6prefix"
 	proto_config_add_string "peeraddr"
 	proto_config_add_string "tunlink"
 	proto_config_add_string "tunnelid"