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315 lines
6.8 KiB
Bash
315 lines
6.8 KiB
Bash
#!/bin/sh
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[ -x /usr/sbin/pppd ] || exit 0
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[ -n "$INCLUDE_ONLY" ] || {
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. /lib/functions.sh
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. /lib/functions/network.sh
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. ../netifd-proto.sh
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init_proto "$@"
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}
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ppp_select_ipaddr()
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{
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local subnets=$1
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local res
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local res_mask
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for subnet in $subnets; do
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local addr="${subnet%%/*}"
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local mask="${subnet#*/}"
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if [ -n "$res_mask" -a "$mask" != 32 ]; then
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[ "$mask" -gt "$res_mask" ] || [ "$res_mask" = 32 ] && {
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res="$addr"
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res_mask="$mask"
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}
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elif [ -z "$res_mask" ]; then
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res="$addr"
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res_mask="$mask"
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fi
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done
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echo "$res"
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}
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ppp_exitcode_tostring()
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{
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local errorcode=$1
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[ -n "$errorcode" ] || errorcode=5
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case "$errorcode" in
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0) echo "OK" ;;
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1) echo "FATAL_ERROR" ;;
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2) echo "OPTION_ERROR" ;;
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3) echo "NOT_ROOT" ;;
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4) echo "NO_KERNEL_SUPPORT" ;;
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5) echo "USER_REQUEST" ;;
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6) echo "LOCK_FAILED" ;;
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7) echo "OPEN_FAILED" ;;
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8) echo "CONNECT_FAILED" ;;
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9) echo "PTYCMD_FAILED" ;;
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10) echo "NEGOTIATION_FAILED" ;;
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11) echo "PEER_AUTH_FAILED" ;;
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12) echo "IDLE_TIMEOUT" ;;
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13) echo "CONNECT_TIME" ;;
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14) echo "CALLBACK" ;;
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15) echo "PEER_DEAD" ;;
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16) echo "HANGUP" ;;
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17) echo "LOOPBACK" ;;
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18) echo "INIT_FAILED" ;;
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19) echo "AUTH_TOPEER_FAILED" ;;
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20) echo "TRAFFIC_LIMIT" ;;
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21) echo "CNID_AUTH_FAILED";;
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*) echo "UNKNOWN_ERROR" ;;
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esac
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}
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ppp_generic_init_config() {
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proto_config_add_string username
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proto_config_add_string password
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proto_config_add_string keepalive
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proto_config_add_boolean keepalive_adaptive
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proto_config_add_int demand
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proto_config_add_string pppd_options
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proto_config_add_string 'connect:file'
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proto_config_add_string 'disconnect:file'
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proto_config_add_string ipv6
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proto_config_add_boolean authfail
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proto_config_add_int mtu
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proto_config_add_string pppname
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proto_config_add_string unnumbered
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}
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ppp_generic_setup() {
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local config="$1"; shift
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local localip
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json_get_vars ipv6 demand keepalive keepalive_adaptive username password pppd_options pppname unnumbered
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if [ "$ipv6" = 0 ]; then
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ipv6=""
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elif [ -z "$ipv6" -o "$ipv6" = auto ]; then
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ipv6=1
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autoipv6=1
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fi
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if [ "${demand:-0}" -gt 0 ]; then
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demand="precompiled-active-filter /etc/ppp/filter demand idle $demand"
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else
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demand=""
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fi
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[ -n "$mtu" ] || json_get_var mtu mtu
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[ -n "$pppname" ] || pppname="${proto:-ppp}-$config"
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[ -n "$unnumbered" ] && {
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local subnets
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( proto_add_host_dependency "$config" "" "$unnumbered" )
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network_get_subnets subnets "$unnumbered"
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localip=$(ppp_select_ipaddr "$subnets")
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[ -n "$localip" ] || {
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proto_block_restart "$config"
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return
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}
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}
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local lcp_failure="${keepalive%%[, ]*}"
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local lcp_interval="${keepalive##*[, ]}"
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local lcp_adaptive="lcp-echo-adaptive"
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[ "${lcp_failure:-0}" -lt 1 ] && lcp_failure=""
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[ "$lcp_interval" != "$keepalive" ] || lcp_interval=5
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[ "${keepalive_adaptive:-1}" -lt 1 ] && lcp_adaptive=""
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[ -n "$connect" ] || json_get_var connect connect
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[ -n "$disconnect" ] || json_get_var disconnect disconnect
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proto_run_command "$config" /usr/sbin/pppd \
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nodetach ipparam "$config" \
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ifname "$pppname" \
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${localip:+$localip:} \
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${lcp_failure:+lcp-echo-interval $lcp_interval lcp-echo-failure $lcp_failure $lcp_adaptive} \
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${ipv6:++ipv6} \
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${autoipv6:+set AUTOIPV6=1} \
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nodefaultroute \
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usepeerdns \
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$demand maxfail 1 \
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${username:+user "$username" password "$password"} \
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${connect:+connect "$connect"} \
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${disconnect:+disconnect "$disconnect"} \
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ip-up-script /lib/netifd/ppp-up \
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ipv6-up-script /lib/netifd/ppp-up \
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ip-down-script /lib/netifd/ppp-down \
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ipv6-down-script /lib/netifd/ppp-down \
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${mtu:+mtu $mtu mru $mtu} \
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"$@" $pppd_options
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}
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ppp_generic_teardown() {
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local interface="$1"
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local errorstring=$(ppp_exitcode_tostring $ERROR)
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case "$ERROR" in
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0)
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;;
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2)
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proto_notify_error "$interface" "$errorstring"
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proto_block_restart "$interface"
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;;
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11|19)
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json_get_var authfail authfail
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proto_notify_error "$interface" "$errorstring"
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if [ "${authfail:-0}" -gt 0 ]; then
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proto_block_restart "$interface"
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fi
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;;
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*)
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proto_notify_error "$interface" "$errorstring"
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;;
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esac
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proto_kill_command "$interface"
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}
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# PPP on serial device
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proto_ppp_init_config() {
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proto_config_add_string "device"
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ppp_generic_init_config
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no_device=1
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available=1
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lasterror=1
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}
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proto_ppp_setup() {
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local config="$1"
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json_get_var device device
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ppp_generic_setup "$config" "$device"
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}
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proto_ppp_teardown() {
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ppp_generic_teardown "$@"
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}
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proto_pppoe_init_config() {
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ppp_generic_init_config
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proto_config_add_string "ac"
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proto_config_add_string "service"
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proto_config_add_string "host_uniq"
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lasterror=1
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}
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proto_pppoe_setup() {
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local config="$1"
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local iface="$2"
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for module in slhc ppp_generic pppox pppoe; do
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/sbin/insmod $module 2>&- >&-
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done
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json_get_var mtu mtu
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mtu="${mtu:-1492}"
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json_get_var ac ac
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json_get_var service service
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json_get_var host_uniq host_uniq
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ppp_generic_setup "$config" \
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plugin rp-pppoe.so \
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${ac:+rp_pppoe_ac "$ac"} \
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${service:+rp_pppoe_service "$service"} \
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${host_uniq:+host-uniq "$host_uniq"} \
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"nic-$iface"
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}
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proto_pppoe_teardown() {
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ppp_generic_teardown "$@"
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}
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proto_pppoa_init_config() {
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ppp_generic_init_config
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proto_config_add_int "atmdev"
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proto_config_add_int "vci"
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proto_config_add_int "vpi"
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proto_config_add_string "encaps"
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no_device=1
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available=1
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lasterror=1
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}
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proto_pppoa_setup() {
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local config="$1"
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local iface="$2"
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for module in slhc ppp_generic pppox pppoatm; do
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/sbin/insmod $module 2>&- >&-
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done
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json_get_vars atmdev vci vpi encaps
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case "$encaps" in
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1|vc) encaps="vc-encaps" ;;
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*) encaps="llc-encaps" ;;
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esac
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ppp_generic_setup "$config" \
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plugin pppoatm.so \
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${atmdev:+$atmdev.}${vpi:-8}.${vci:-35} \
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${encaps}
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}
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proto_pppoa_teardown() {
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ppp_generic_teardown "$@"
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}
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proto_pptp_init_config() {
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ppp_generic_init_config
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proto_config_add_string "server"
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proto_config_add_string "interface"
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available=1
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no_device=1
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lasterror=1
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}
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proto_pptp_setup() {
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local config="$1"
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local iface="$2"
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local ip serv_addr server interface
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json_get_vars interface server
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[ -n "$server" ] && {
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for ip in $(resolveip -t 5 "$server"); do
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( proto_add_host_dependency "$config" "$ip" $interface )
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serv_addr=1
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done
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}
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[ -n "$serv_addr" ] || {
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echo "Could not resolve server address"
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sleep 5
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proto_setup_failed "$config"
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exit 1
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}
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local load
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for module in slhc ppp_generic ppp_async ppp_mppe ip_gre gre pptp; do
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grep -q "^$module " /proc/modules && continue
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/sbin/insmod $module 2>&- >&-
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load=1
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done
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[ "$load" = "1" ] && sleep 1
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ppp_generic_setup "$config" \
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plugin pptp.so \
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pptp_server $server \
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file /etc/ppp/options.pptp
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}
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proto_pptp_teardown() {
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ppp_generic_teardown "$@"
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}
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[ -n "$INCLUDE_ONLY" ] || {
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add_protocol ppp
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[ -f /usr/lib/pppd/*/rp-pppoe.so ] && add_protocol pppoe
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[ -f /usr/lib/pppd/*/pppoatm.so ] && add_protocol pppoa
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[ -f /usr/lib/pppd/*/pptp.so ] && add_protocol pptp
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}
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