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[package] base-files: introduce /lib/functions/network.sh

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This file will contain common procedures to deal with network interfaces.
Initially provides network_get_ipaddr(), network_get_ipaddr6(),
network_get_subnet() and network_get_subnet6() to determine the
primary IP addresses or subnets of a given logical interface.

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@31935 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
jow
2012-05-28 03:15:02 +00:00
parent 0f299fab07
commit 41d413b29c
2 changed files with 42 additions and 1 deletions
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41
package/base-files/files/lib/functions/network.sh Normal file
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. /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; }