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69 lines
1.6 KiB
Bash
69 lines
1.6 KiB
Bash
#!/bin/sh
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if [ "$ACTION" = ifup ]; then
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. /etc/functions.sh
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include /lib/network
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scan_interfaces
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update_tunnel() {
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local cfg="$1"
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local proto
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config_get proto "$cfg" proto
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[ "$proto" = 6in4 ] || return 0
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local wandev
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config_get wandev "$cfg" wan_device "$(find_6in4_wanif)"
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[ "$wandev" = "$DEVICE" ] || return 0
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local wanip=$(find_6in4_wanip "$wandev")
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[ -n "$wanip" ] && {
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lsmod | grep -q ^sit || {
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logger -t 6in4-update "Tunneling driver not loaded yet, deferring action"
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exit 0
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}
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local tunnelid
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config_get tunnelid "$cfg" tunnelid
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local username
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config_get username "$cfg" username
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local password
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config_get password "$cfg" password
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uci_set_state network "$cfg" ipaddr "$wanip"
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[ -n "$tunnelid" ] && [ -n "$username" ] && [ -n "$password" ] && {
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[ "${#password}" == 32 -a -z "${password//[a-fA-F0-9]/}" ] || {
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password="$(echo -n "$password" | md5sum)"; password="${password%% *}"
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}
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(
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local url="http://ipv4.tunnelbroker.net/ipv4_end.php?ip=AUTO&apikey=$username&pass=$password&tid=$tunnelid"
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local try=0
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local max=3
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while [ $((++try)) -le $max ]; do
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wget -qO/dev/null "$url" 2>/dev/null && {
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logger -t 6in4-update "Updated tunnel #$tunnelid endpoint to $wanip"
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ifup "$cfg"
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break
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} || {
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logger -t 6in4-update "Try $try/$max failed, retrying"
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sleep 1
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}
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done
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)&
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} || {
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logger -t 6in4-update "Re-establishing tunnel due to change on $INTERFACE ($DEVICE)"
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ifup "$cfg" &
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}
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}
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}
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config_foreach update_tunnel interface
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fi
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