. /usr/share/libubox/jshn.sh
+__network_set_cache()
+{
+ if [ -n "$3" ]; then
+ eval "export -- __NETWORK_CV_$1='$3'"
+ __NETWORK_CACHE="${__NETWORK_CACHE:+$__NETWORK_CACHE }__NETWORK_CV_$1"
+ elif json_get_var "__NETWORK_CV_$1" "$2"; then
+ __NETWORK_CACHE="${__NETWORK_CACHE:+$__NETWORK_CACHE }__NETWORK_CV_$1"
+ fi
+}
+
+__network_export()
+{
+ local __v="__NETWORK_CV_$2"
+ eval "export -- \"$1=\${$__v:+\$$__v$3}\"; [ -n \"\${$__v+x}\" ]"
+}
+
+__network_parse_ifstatus()
+{
+ local __iface="$1"
+ local __key="${__iface}"
+ local __tmp
+ local __old_ns
+
+ __network_export __tmp "${__key}__parsed" && return 0
+ __tmp="$(ubus call network.interface."$__iface" status 2>/dev/null)"
+ [ -n "$__tmp" ] || return 1
+
+ json_set_namespace "network" __old_ns
+ json_load "$__tmp"
+
+ __network_set_cache "${__key}__parsed" "" "1"
+
+ for __tmp in "" "_inactive"; do
+
+ __key="${__key}${__tmp}"
+
+ # parse addresses
+ local __family
+ for __family in 4 6; do
+ if json_is_a "ipv${__family}_address" array; then
+
+ json_select "ipv${__family}_address"
+
+ if json_is_a 1 object; then
+
+ json_select 1
+ __network_set_cache "${__key}_address${__family}" address
+ __network_set_cache "${__key}_mask${__family}" mask
+ json_select ".."
+
+ fi
+
+ json_select ".."
+
+ fi
+ done
+
+ # parse prefixes
+ if json_is_a "ipv6_prefix" array; then
+ json_select "ipv6_prefix"
+
+ if json_is_a 1 object; then
+ json_select 1
+ __network_set_cache "${__key}_prefix6_address" address
+ __network_set_cache "${__key}_prefix6_mask" mask
+ json_select ".."
+ fi
+
+ json_select ".."
+ fi
+
+ # parse routes
+ if json_is_a route array; then
+
+ json_select "route"
+
+ local __idx=1
+ while json_is_a "$__idx" object; do
+
+ json_select "$((__idx++))"
+ json_get_var __tmp target
+
+ case "${__tmp}" in
+ 0.0.0.0)
+ __network_set_cache "${__key}_gateway4" nexthop
+ ;;
+ ::)
+ __network_set_cache "${__key}_gateway6" nexthop
+ ;;
+ esac
+
+ json_select ".."
+
+ done
+
+ json_select ".."
+
+ fi
+
+ # parse dns info
+ local __field
+ for __field in "dns_server" "dns_search"; do
+ if json_is_a "$__field" array; then
+
+ json_select "$__field"
+
+ local __idx=1
+ local __dns=""
+
+ while json_is_a "$__idx" string; do
+
+ json_get_var __tmp "$((__idx++))"
+ __dns="${__dns:+$__dns }$__tmp"
+
+ done
+
+ json_select ".."
+
+ if [ -n "$__dns" ]; then
+ __network_set_cache "${__key}_${__field}" "" "$__dns"
+ fi
+ fi
+ done
+
+ # parse up state, device and physdev
+ for __field in "up" "l3_device" "device"; do
+ if json_get_type __tmp "$__field"; then
+ __network_set_cache "${__key}_${__field}" "$__field"
+ fi
+ done
+
+ # descend into inactive table
+ json_is_a "inactive" object && json_select "inactive"
+
+ done
+
+ json_cleanup
+ json_set_namespace "$__old_ns"
+
+ return 0
+}
+
+
__network_ipaddr()
{
local __var="$1"
local __iface="$2"
local __family="$3"
- local __prefix="${4:-0}"
+ local __prefix="$4"
+ local __tmp
- local __tmp="$(ubus call network.interface."$__iface" status 2>/dev/null)"
+ __network_parse_ifstatus "$__iface" || return 1
- json_load "${__tmp:-{}}"
- json_get_type __tmp "ipv${__family}_address"
+ if [ $__prefix -eq 1 ]; then
+ __network_export __tmp "${__iface}_mask${__family}" && \
+ __network_export "$__var" "${__iface}_address${__family}" "/$__tmp"
+ return $?
+ fi
- if [ "$__tmp" = array ]; then
+ __network_export "$__var" "${__iface}_address${__family}"
+ return $?
- json_select "ipv${__family}_address"
- json_get_type __tmp 1
+}
- if [ "$__tmp" = object ]; then
+# determine IPv4 address of given logical interface
+# 1: destination variable
+# 2: interface
+network_get_ipaddr() { __network_ipaddr "$1" "$2" 4 0; }
+
+# determine IPv6 address of given logical interface
+# 1: destination variable
+# 2: interface
+network_get_ipaddr6() { __network_ipaddr "$1" "$2" 6 0; }
+
+# determine IPv4 subnet of given logical interface
+# 1: destination variable
+# 2: interface
+network_get_subnet() { __network_ipaddr "$1" "$2" 4 1; }
+
+# determine IPv6 subnet of given logical interface
+# 1: destination variable
+# 2: interface
+network_get_subnet6() { __network_ipaddr "$1" "$2" 6 1; }
- json_select 1
- json_get_var $__var address
+# determine IPv6 prefix
+network_get_prefix6() {
+ local __var="$1"
+ local __iface="$2"
+ local __address
+ local __mask
+
+ __network_parse_ifstatus "$__iface" || return 1
+ __network_export __mask "${__iface}_prefix6_mask" || return 1
+ __network_export __var "${__iface}_prefix6_address" "$__mask"
+ return $?
+}
- [ $__prefix -gt 0 ] && {
- json_get_var __tmp mask
- eval "export -- \"$__var=\${$__var}/$__tmp\""
- }
+__network_gateway()
+{
+ local __var="$1"
+ local __iface="$2"
+ local __family="$3"
+ local __inactive="$4"
+
+ __network_parse_ifstatus "$__iface" || return 1
+
+ if [ "$__inactive" = 1 -o "$__inactive" = "true" ]; then
+ __network_export "$__var" "${__iface}_inactive_gateway${__family}" && \
return 0
- fi
fi
+ __network_export "$__var" "${__iface}_gateway${__family}"
+ return $?
+}
+
+# determine IPv4 gateway of given logical interface
+# 1: destination variable
+# 2: interface
+# 3: consider inactive gateway if "true" (optional)
+network_get_gateway() { __network_gateway "$1" "$2" 4 "${3:-0}"; }
+
+# determine IPv6 gateway of given logical interface
+# 1: destination variable
+# 2: interface
+# 3: consider inactive gateway if "true" (optional)
+network_get_gateway6() { __network_gateway "$1" "$2" 6 "${3:-0}"; }
+
+
+__network_dns() {
+ local __var="$1"
+ local __iface="$2"
+ local __field="$3"
+ local __inactive="$4"
+
+ __network_parse_ifstatus "$__iface" || return 1
+
+ if [ "$__inactive" = 1 -o "$__inactive" = "true" ]; then
+ __network_export "$__var" "${__iface}_inactive_${__field}" && \
+ return 0
+ fi
+
+ __network_export "$__var" "${__iface}_${__field}"
+ return $?
+}
+
+# determine the DNS servers of the given logical interface
+# 1: destination variable
+# 2: interface
+# 3: consider inactive servers if "true" (optional)
+network_get_dnsserver() { __network_dns "$1" "$2" dns_server "${3:-0}"; }
+
+# determine the domains of the given logical interface
+# 1: destination variable
+# 2: interface
+# 3: consider inactive domains if "true" (optional)
+network_get_dnssearch() { __network_dns "$1" "$2" dns_search "${3:-0}"; }
+
+
+__network_wan()
+{
+ local __var="$1"
+ local __family="$2"
+ local __inactive="$3"
+ local __iface
+
+ for __iface in $(ubus list | sed -ne 's/^network\.interface\.//p'); do
+ if [ "$__iface" != loopback ]; then
+ if __network_gateway "$__var" "$__iface" "$__family" "$__inactive"; then
+ eval "export -- \"$__var=$__iface\""
+ return 0
+ fi
+ fi
+ done
+
+ eval "export -- \"$__var=\""
return 1
}
-network_get_ipaddr() { __network_ipaddr "$1" "$2" 4 0; }
-network_get_ipaddr6() { __network_ipaddr "$1" "$2" 6 0; }
+# find the logical interface which holds the current IPv4 default route
+# 1: destination variable
+# 2: consider inactive default routes if "true" (optional)
+network_find_wan() { __network_wan "$1" 4 "${2:-0}"; }
-network_get_subnet() { __network_ipaddr "$1" "$2" 4 1; }
-network_get_subnet6() { __network_ipaddr "$1" "$2" 6 1; }
+# find the logical interface which holds the current IPv6 default route
+# 1: destination variable
+# 2: consider inactive dafault routes if "true" (optional)
+network_find_wan6() { __network_wan "$1" 6 "${2:-0}"; }
__network_device()
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" "$__field"
+ __network_parse_ifstatus "$__iface" || return 1
+ __network_export "$__var" "${__iface}_${__field}"
+ return $?
}
+# test whether the given logical interface is running
+# 1: interface
network_is_up()
{
local __up
__network_device __up "$1" up && [ $__up -eq 1 ]
}
+# determine the layer 3 linux network device of the given logical interface
+# 1: destination variable
+# 2: interface
network_get_device() { __network_device "$1" "$2" l3_device; }
+
+# determine the layer 2 linux network device of the given logical interface
+# 1: destination variable
+# 2: interface
network_get_physdev() { __network_device "$1" "$2" device; }
ubus call network.device set_state "$(json_dump)" 2>/dev/null
}
+# defer netifd actions on the given linux network device
+# 1: device name
network_defer_device() { __network_defer "$1" 1; }
+
+# continue netifd actions on the given linux network device
+# 1: device name
network_ready_device() { __network_defer "$1" 0; }
+
+# flush the internal value cache to force re-reading values from ubus
+network_flush_cache()
+{
+ local __tmp
+ for __tmp in $__NETWORK_CACHE __NETWORK_CACHE; do
+ unset "$__tmp"
+ done
+}