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#!/bin/sh
#!/bin/sh


[ -x /usr/sbin/pppd ] || exit 0
[ -x /usr/sbin/pppd ] || exit 0


[ -n "$INCLUDE_ONLY" ] || {
[ -n "$INCLUDE_ONLY" ] || {
. /lib/functions.sh
. /lib/functions.sh
. /lib/functions/network.sh
. /lib/functions/network.sh
. ../netifd-proto.sh
. ../netifd-proto.sh
init_proto "$@"
init_proto "$@"
}
}


ppp_select_ipaddr()
ppp_select_ipaddr()
{
{
local subnets=$1
local subnets=$1
local res
local res
local res_mask
local res_mask


for subnet in $subnets; do
for subnet in $subnets; do
local addr="${subnet%%/*}"
local addr="${subnet%%/*}"
local mask="${subnet#*/}"
local mask="${subnet#*/}"


if [ -n "$res_mask" -a "$mask" != 32 ]; then
if [ -n "$res_mask" -a "$mask" != 32 ]; then
[ "$mask" -gt "$res_mask" ] || [ "$res_mask" = 32 ] && {
[ "$mask" -gt "$res_mask" ] || [ "$res_mask" = 32 ] && {
res="$addr"
res="$addr"
res_mask="$mask"
res_mask="$mask"
}
}
elif [ -z "$res_mask" ]; then
elif [ -z "$res_mask" ]; then
res="$addr"
res="$addr"
res_mask="$mask"
res_mask="$mask"
fi
fi
done
done


echo "$res"
echo "$res"
}
}


ppp_exitcode_tostring()
ppp_exitcode_tostring()
{
{
local errorcode=$1
local errorcode=$1
[ -n "$errorcode" ] || errorcode=5
[ -n "$errorcode" ] || errorcode=5


case "$errorcode" in
case "$errorcode" in
0) echo "OK" ;;
0) echo "OK" ;;
1) echo "FATAL_ERROR" ;;
1) echo "FATAL_ERROR" ;;
2) echo "OPTION_ERROR" ;;
2) echo "OPTION_ERROR" ;;
3) echo "NOT_ROOT" ;;
3) echo "NOT_ROOT" ;;
4) echo "NO_KERNEL_SUPPORT" ;;
4) echo "NO_KERNEL_SUPPORT" ;;
5) echo "USER_REQUEST" ;;
5) echo "USER_REQUEST" ;;
6) echo "LOCK_FAILED" ;;
6) echo "LOCK_FAILED" ;;
7) echo "OPEN_FAILED" ;;
7) echo "OPEN_FAILED" ;;
8) echo "CONNECT_FAILED" ;;
8) echo "CONNECT_FAILED" ;;
9) echo "PTYCMD_FAILED" ;;
9) echo "PTYCMD_FAILED" ;;
10) echo "NEGOTIATION_FAILED" ;;
10) echo "NEGOTIATION_FAILED" ;;
11) echo "PEER_AUTH_FAILED" ;;
11) echo "PEER_AUTH_FAILED" ;;
12) echo "IDLE_TIMEOUT" ;;
12) echo "IDLE_TIMEOUT" ;;
13) echo "CONNECT_TIME" ;;
13) echo "CONNECT_TIME" ;;
14) echo "CALLBACK" ;;
14) echo "CALLBACK" ;;
15) echo "PEER_DEAD" ;;
15) echo "PEER_DEAD" ;;
16) echo "HANGUP" ;;
16) echo "HANGUP" ;;
17) echo "LOOPBACK" ;;
17) echo "LOOPBACK" ;;
18) echo "INIT_FAILED" ;;
18) echo "INIT_FAILED" ;;
19) echo "AUTH_TOPEER_FAILED" ;;
19) echo "AUTH_TOPEER_FAILED" ;;
20) echo "TRAFFIC_LIMIT" ;;
20) echo "TRAFFIC_LIMIT" ;;
21) echo "CNID_AUTH_FAILED";;
21) echo "CNID_AUTH_FAILED";;
*) echo "UNKNOWN_ERROR" ;;
*) echo "UNKNOWN_ERROR" ;;
esac
esac
}
}


ppp_generic_init_config() {
ppp_generic_init_config() {
proto_config_add_string username
proto_config_add_string username
proto_config_add_string password
proto_config_add_string password
proto_config_add_string keepalive
proto_config_add_string keepalive
proto_config_add_boolean keepalive_adaptive
proto_config_add_boolean keepalive_adaptive
proto_config_add_int demand
proto_config_add_int demand
proto_config_add_string pppd_options
proto_config_add_string pppd_options
proto_config_add_string 'connect:file'
proto_config_add_string 'connect:file'
proto_config_add_string 'disconnect:file'
proto_config_add_string 'disconnect:file'
proto_config_add_string ipv6
proto_config_add_string ipv6
proto_config_add_boolean authfail
proto_config_add_boolean authfail
proto_config_add_int mtu
proto_config_add_int mtu
proto_config_add_string pppname
proto_config_add_string pppname
proto_config_add_string unnumbered
proto_config_add_string unnumbered
proto_config_add_boolean persist
proto_config_add_boolean persist
proto_config_add_int maxfail
proto_config_add_int maxfail
proto_config_add_int holdoff
proto_config_add_int holdoff
}
}


ppp_generic_setup() {
ppp_generic_setup() {
local config="$1"; shift
local config="$1"; shift
local localip
local localip


json_get_vars ipv6 ip6table demand keepalive keepalive_adaptive username password pppd_options pppname unnumbered persist maxfail holdoff peerdns
json_get_vars ipv6 ip6table demand keepalive keepalive_adaptive username password pppd_options pppname unnumbered persist maxfail holdoff peerdns
if [ "$ipv6" = 0 ]; then
if [ "$ipv6" = 0 ]; then
ipv6=""
ipv6=""
elif [ -z "$ipv6" -o "$ipv6" = auto ]; then
elif [ -z "$ipv6" -o "$ipv6" = auto ]; then
ipv6=1
ipv6=1
autoipv6=1
autoipv6=1
fi
fi


if [ "${demand:-0}" -gt 0 ]; then
if [ "${demand:-0}" -gt 0 ]; then
demand="precompiled-active-filter /etc/ppp/filter demand idle $demand"
demand="precompiled-active-filter /etc/ppp/filter demand idle $demand"