1 files changed, 170 insertions, 0 deletions
diff --git a/package/base-files/files/lib/functions/network.sh b/package/base-files/files/lib/functions/network.sh
new file mode 100644
index 000000000..a4652569b
--- /dev/null
+++ b/package/base-files/files/lib/functions/network.sh
@@ -0,0 +1,170 @@
+. /usr/share/libubox/jshn.sh
+
+__network_ipaddr()
+{
+	local __var="$1"
+	local __iface="$2"
+	local __family="$3"
+	local __prefix="${4:-0}"
+
+	local __tmp="$(ubus call network.interface."$__iface" status 2>/dev/null)"
+
+	json_load "${__tmp:-{}}"
+	json_get_type __tmp "ipv${__family}_address"
+
+	if [ "$__tmp" = array ]; then
+
+		json_select "ipv${__family}_address"
+		json_get_type __tmp 1
+
+		if [ "$__tmp" = object ]; then
+
+			json_select 1
+			json_get_var $__var address
+
+			[ $__prefix -gt 0 ] && {
+				json_get_var __tmp mask
+				eval "export -- \"$__var=\${$__var}/$__tmp\""
+			}
+
+			return 0
+		fi
+	fi
+
+	return 1
+}
+
+network_get_ipaddr()  { __network_ipaddr "$1" "$2" 4 0; }
+network_get_ipaddr6() { __network_ipaddr "$1" "$2" 6 0; }
+
+network_get_subnet()  { __network_ipaddr "$1" "$2" 4 1; }
+network_get_subnet6() { __network_ipaddr "$1" "$2" 6 1; }
+
+
+__network_gateway()
+{
+	local __var="$1"
+	local __iface="$2"
+	local __family="$3"
+
+	local __tmp="$(ubus call network.interface."$__iface" status 2>/dev/null)"
+	local __idx=1
+
+	json_load "${__tmp:-{}}"
+
+	if json_get_type __tmp route && [ "$__tmp" = array ]; then
+
+		json_select route
+
+		while json_get_type __tmp "$__idx" && [ "$__tmp" = object ]; do
+
+			json_select "$((__idx++))"
+			json_get_var __tmp target
+
+			case "${__family}/${__tmp}" in
+				4/0.0.0.0|6/::)
+					json_get_var "$__var" nexthop
+					return $?
+				;;
+			esac
+
+			json_select ".."
+
+		done
+	fi
+
+	return 1
+}
+
+network_get_gateway()  { __network_gateway "$1" "$2" 4; }
+network_get_gateway6() { __network_gateway "$1" "$2" 6; }
+
+
+__network_dns() {
+	local __var="$1"
+	local __iface="$2"
+	local __field="$3"
+
+	local __tmp="$(ubus call network.interface."$__iface" status 2>/dev/null)"
+	local __dns=""
+	local __idx=1
+
+	json_load "${__tmp:-{}}"
+
+	if json_get_type __tmp "$__field" && [ "$__tmp" = array ]; then
+
+		json_select "$__field"
+
+		while json_get_type __tmp "$__idx" && [ "$__tmp" = string ]; do
+
+			json_get_var __tmp "$((__idx++))"
+			__dns="${__dns:+$__dns }$__tmp"
+
+		done
+	fi
+
+	eval "export -- \"$__var=$__dns\""
+	[ -n "$__dns" ]
+}
+
+network_get_dnsserver() { __network_dns "$1" "$2" dns_server; }
+network_get_dnssearch() { __network_dns "$1" "$2" dns_search; }
+
+
+__network_wan() {
+	local __var="$1"
+	local __family="$2"
+	local __iface
+
+	for __iface in $(ubus list | sed -ne 's/^network\.interface\.//p'); do
+		if __network_gateway "$__var" "$__iface" "$__family"; then
+			eval "export -- \"$__var=$__iface\""
+			return 0
+		fi
+	done
+
+	eval "export -- \"$__var=\""
+	return 1
+}
+
+network_find_wan()  { __network_wan "$1" 4; }
+network_find_wan6() { __network_wan "$1" 6; }
+
+
+__network_device()
+{
+	local __var="$1"
+	local __iface="$2"
+	local __field="$3"
+
+	local __tmp="$(ubus call network.interface."$__iface" status 2>/dev/null)"
+	[ -n "$__tmp" ] || return 1
+
+	json_load "$__tmp"
+	json_get_var "$__var" "$__field"
+}
+
+network_is_up()
+{
+	local __up
+	__network_device __up "$1" up && [ $__up -eq 1 ]
+}
+
+network_get_device()  { __network_device "$1" "$2" l3_device; }
+network_get_physdev() { __network_device "$1" "$2" device;    }
+
+
+__network_defer()
+{
+	local __device="$1"
+	local __defer="$2"
+
+	json_init
+	json_add_string name "$__device"
+	json_add_boolean defer "$__defer"
+
+	ubus call network.device set_state "$(json_dump)" 2>/dev/null
+}
+
+network_defer_device() { __network_defer "$1" 1; }
+network_ready_device() { __network_defer "$1" 0; }