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