1600ba99e4
- support reading inactive gateways and DNS information in network_get_gateway(), network_get_dnsserver() and network_get_dnssearch() by passing "true" as optional last argument - internally cache fetched values to speed up subsequent accesses to the same data, introduce network_flush_cache() to clear them - add some inline function documentation SVN-Revision: 34722
294 lines
6.3 KiB
Bash
294 lines
6.3 KiB
Bash
. /usr/share/libubox/jshn.sh
|
|
|
|
__network_switch_inactive()
|
|
{
|
|
local __tmp
|
|
|
|
if [ "$1" = 0 ] || [ "$1" = false ]; then
|
|
return 1
|
|
fi
|
|
|
|
json_get_type __tmp "inactive"
|
|
|
|
if [ "$__tmp" = object ]; then
|
|
json_select "inactive"
|
|
fi
|
|
}
|
|
|
|
__network_set_cache()
|
|
{
|
|
__NETWORK_CACHE="${__NETWORK_CACHE:+$__NETWORK_CACHE }__NETWORK_CV_$1"
|
|
eval "__NETWORK_CV_$1='\$$2'"
|
|
}
|
|
|
|
__network_get_cache()
|
|
{
|
|
eval "[ -n \"\${__NETWORK_CV_$1+x}\" ] && export -- \"$2=\$__NETWORK_CV_$1\""
|
|
}
|
|
|
|
__network_ipaddr()
|
|
{
|
|
local __var="$1"
|
|
local __iface="$2"
|
|
local __family="$3"
|
|
local __prefix="$4"
|
|
local __key="ipaddr_${2}_${3}_${4}"
|
|
|
|
__network_get_cache "$__key" "$__var" && return 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\""
|
|
}
|
|
|
|
__network_set_cache "$__key" "$__var"
|
|
return 0
|
|
fi
|
|
fi
|
|
|
|
return 1
|
|
}
|
|
|
|
# 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; }
|
|
|
|
|
|
__network_gateway()
|
|
{
|
|
local __var="$1"
|
|
local __iface="$2"
|
|
local __family="$3"
|
|
local __key="gateway_${2}_${3}"
|
|
|
|
__network_get_cache "$__key" "$__var" && return 0
|
|
|
|
local __tmp="$(ubus call network.interface."$__iface" status 2>/dev/null)"
|
|
|
|
json_load "${__tmp:-{}}"
|
|
|
|
for __tmp in 0 1; do
|
|
|
|
if json_get_type __tmp route && [ "$__tmp" = array ]; then
|
|
|
|
json_select route
|
|
|
|
local __idx=1
|
|
while json_get_type __tmp "$__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 "$__var" nexthop
|
|
__network_set_cache "$__key" "$__var"
|
|
return $?
|
|
;;
|
|
esac
|
|
|
|
json_select ".."
|
|
|
|
done
|
|
|
|
json_select ".."
|
|
|
|
fi
|
|
|
|
__network_switch_inactive "$4" || break
|
|
|
|
done
|
|
|
|
return 1
|
|
}
|
|
|
|
# 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="$3"
|
|
local __key="dns_${2}_${3}"
|
|
|
|
__network_get_cache "$__key" "$__var" && return 0
|
|
|
|
local __tmp="$(ubus call network.interface."$__iface" status 2>/dev/null)"
|
|
local __dns=""
|
|
|
|
json_load "${__tmp:-{}}"
|
|
|
|
for __tmp in 0 1; do
|
|
|
|
if json_get_type __tmp "$__field" && [ "$__tmp" = array ]; then
|
|
|
|
json_select "$__field"
|
|
|
|
local __idx=1
|
|
while json_get_type __tmp "$__idx" && [ "$__tmp" = string ]; do
|
|
|
|
json_get_var __tmp "$((__idx++))"
|
|
__dns="${__dns:+$__dns }$__tmp"
|
|
|
|
done
|
|
|
|
json_select ".."
|
|
fi
|
|
|
|
__network_switch_inactive "$4" || break
|
|
|
|
done
|
|
|
|
if [ -n "$__dns" ]; then
|
|
eval "export -- \"$__var=$__dns\""
|
|
__network_set_cache "$__key" "$__var"
|
|
fi
|
|
}
|
|
|
|
# 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 servers if "true" (optional)
|
|
network_get_dnssearch() { __network_dns "$1" "$2" dns_search "${3:-0}"; }
|
|
|
|
|
|
__network_wan() {
|
|
local __var="$1"
|
|
local __family="$2"
|
|
local __key="wan_${2}"
|
|
local __iface
|
|
|
|
__network_get_cache "$__key" "$__var" && return 0
|
|
|
|
for __iface in $(ubus list | sed -ne 's/^network\.interface\.//p'); do
|
|
if __network_gateway "$__var" "$__iface" "$__family"; then
|
|
eval "export -- \"$__var=$__iface\""
|
|
__network_set_cache "$__key" "$__var"
|
|
return 0
|
|
fi
|
|
done
|
|
|
|
eval "export -- \"$__var=\""
|
|
return 1
|
|
}
|
|
|
|
# find the logical interface which holds the current IPv4 default route
|
|
# 1: destination variable
|
|
network_find_wan() { __network_wan "$1" 4; }
|
|
|
|
# find the logical interface which holds the current IPv6 default route
|
|
# 1: destination variable
|
|
network_find_wan6() { __network_wan "$1" 6; }
|
|
|
|
|
|
__network_device()
|
|
{
|
|
local __var="$1"
|
|
local __iface="$2"
|
|
local __field="$3"
|
|
local __key="device_${2}_${3}"
|
|
|
|
__network_get_cache "$__key" "$__var" && return 0
|
|
|
|
local __tmp="$(ubus call network.interface."$__iface" status 2>/dev/null)"
|
|
[ -n "$__tmp" ] || return 1
|
|
|
|
json_load "$__tmp"
|
|
json_get_var "$__var" "$__field" && __network_set_cache "$__key" "$__var"
|
|
}
|
|
|
|
# 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; }
|
|
|
|
|
|
__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
|
|
}
|
|
|
|
# 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
|
|
}
|