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base-files: rework cache handling in network.sh to keep the entire parsed ifstatus, use jshn namespaces to support using it concurrently with other jshn users
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@34725 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
jow
parent
66a5862143
commit
a06be29d4e
@ -1,67 +1,153 @@
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. /usr/share/libubox/jshn.sh
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__network_switch_inactive()
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{
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local __tmp
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if [ "$1" = 0 ] || [ "$1" = false ]; then
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return 1
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fi
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json_get_type __tmp "inactive"
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if [ "$__tmp" = object ]; then
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json_select "inactive"
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fi
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}
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__network_set_cache()
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{
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__NETWORK_CACHE="${__NETWORK_CACHE:+$__NETWORK_CACHE }__NETWORK_CV_$1"
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eval "__NETWORK_CV_$1='\$$2'"
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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_get_cache()
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__network_export()
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{
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eval "[ -n \"\${__NETWORK_CV_$1+x}\" ] && export -- \"$2=\$__NETWORK_CV_$1\""
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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_get_type __tmp "ipv${__family}_address" && [ "$__tmp" = array ]; then
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json_select "ipv${__family}_address"
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if json_get_type __tmp 1 && [ "$__tmp" = 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 routes
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if json_get_type __tmp route && [ "$__tmp" = array ]; then
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json_select "route"
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local __idx=1
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while json_get_type __tmp "$__idx" && [ "$__tmp" = object ]; do
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json_select "$((__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 "${__key}_gateway6" nexthop
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;;
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esac
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json_select ".."
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done
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json_select ".."
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fi
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# parse dns info
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local __field
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for __field in "dns_server" "dns_search"; do
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if json_get_type __tmp "$__field" && [ "$__tmp" = array ]; then
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json_select "$__field"
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local __idx=1
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local __dns=""
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while json_get_type __tmp "$__idx" && [ "$__tmp" = 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_get_type __tmp "inactive" && [ "$__tmp" = object ] && json_select "inactive"
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done
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json_cleanup
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json_set_namespace "$__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="$4"
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local __key="ipaddr_${2}_${3}_${4}"
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local __tmp
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__network_get_cache "$__key" "$__var" && return 0
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__network_parse_ifstatus "$__iface" || return 1
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local __tmp="$(ubus call network.interface."$__iface" status 2>/dev/null)"
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json_load "${__tmp:-{}}"
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json_get_type __tmp "ipv${__family}_address"
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if [ "$__tmp" = array ]; then
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json_select "ipv${__family}_address"
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json_get_type __tmp 1
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if [ "$__tmp" = object ]; then
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json_select 1
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json_get_var $__var address
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[ $__prefix -gt 0 ] && {
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json_get_var __tmp mask
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eval "export -- \"$__var=\${$__var}/$__tmp\""
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}
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__network_set_cache "$__key" "$__var"
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return 0
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fi
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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 $?
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fi
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return 1
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__network_export "$__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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@ -90,47 +176,17 @@ __network_gateway()
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local __var="$1"
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local __iface="$2"
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local __family="$3"
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local __key="gateway_${2}_${3}"
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local __inactive="$4"
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__network_get_cache "$__key" "$__var" && return 0
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__network_parse_ifstatus "$__iface" || return 1
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local __tmp="$(ubus call network.interface."$__iface" status 2>/dev/null)"
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if [ "$__inactive" = 1 -o "$__inactive" = "true" ]; then
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__network_export "$__var" "${__iface}_inactive_gateway${__family}" && \
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return 0
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fi
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json_load "${__tmp:-{}}"
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for __tmp in 0 1; do
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if json_get_type __tmp route && [ "$__tmp" = array ]; then
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json_select route
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local __idx=1
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while json_get_type __tmp "$__idx" && [ "$__tmp" = object ]; do
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json_select "$((__idx++))"
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json_get_var __tmp target
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case "${__family}/${__tmp}" in
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4/0.0.0.0|6/::)
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json_get_var "$__var" nexthop
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__network_set_cache "$__key" "$__var"
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return $?
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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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__network_switch_inactive "$4" || break
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done
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return 1
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__network_export "$__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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@ -150,40 +206,17 @@ __network_dns() {
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local __var="$1"
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local __iface="$2"
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local __field="$3"
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local __key="dns_${2}_${3}"
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local __inactive="$4"
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__network_get_cache "$__key" "$__var" && return 0
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__network_parse_ifstatus "$__iface" || return 1
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local __tmp="$(ubus call network.interface."$__iface" status 2>/dev/null)"
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local __dns=""
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json_load "${__tmp:-{}}"
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for __tmp in 0 1; do
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if json_get_type __tmp "$__field" && [ "$__tmp" = array ]; then
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json_select "$__field"
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local __idx=1
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while json_get_type __tmp "$__idx" && [ "$__tmp" = 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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fi
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__network_switch_inactive "$4" || break
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done
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if [ -n "$__dns" ]; then
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eval "export -- \"$__var=$__dns\""
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__network_set_cache "$__key" "$__var"
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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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@ -195,23 +228,23 @@ 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 servers if "true" (optional)
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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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__network_wan()
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{
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local __var="$1"
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local __family="$2"
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local __key="wan_${2}"
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local __inactive="$3"
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local __iface
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__network_get_cache "$__key" "$__var" && return 0
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for __iface in $(ubus list | sed -ne 's/^network\.interface\.//p'); do
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if __network_gateway "$__var" "$__iface" "$__family"; then
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eval "export -- \"$__var=$__iface\""
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__network_set_cache "$__key" "$__var"
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return 0
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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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@ -221,11 +254,13 @@ __network_wan() {
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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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network_find_wan() { __network_wan "$1" 4; }
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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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network_find_wan6() { __network_wan "$1" 6; }
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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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@ -233,15 +268,10 @@ __network_device()
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local __var="$1"
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local __iface="$2"
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local __field="$3"
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local __key="device_${2}_${3}"
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__network_get_cache "$__key" "$__var" && return 0
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local __tmp="$(ubus call network.interface."$__iface" status 2>/dev/null)"
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[ -n "$__tmp" ] || return 1
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json_load "$__tmp"
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json_get_var "$__var" "$__field" && __network_set_cache "$__key" "$__var"
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__network_parse_ifstatus "$__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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