package/ppp/files/ppp.sh

   1 #!/bin/sh
   2
   3 [ -x /usr/sbin/pppd ] || exit 0
   4
   5 [ -n "$INCLUDE_ONLY" ] || {
   6         . /etc/functions.sh
   7         . ../netifd-proto.sh
   8         init_proto "$@"
   9 }
  10
  11 ppp_generic_init_config() {
  12         proto_config_add_string "username"
  13         proto_config_add_string "password"
  14         proto_config_add_string "keepalive"
  15         proto_config_add_int "demand"
  16         proto_config_add_string "pppd_options"
  17         proto_config_add_string "connect"
  18         proto_config_add_string "disconnect"
  19         proto_config_add_boolean "defaultroute"
  20         proto_config_add_boolean "peerdns"
  21         proto_config_add_boolean "ipv6"
  22         proto_config_add_int "mtu"
  23 }
  24
  25 ppp_generic_setup() {
  26         local config="$1"; shift
  27
  28         json_get_var ipv6 ipv6
  29         [ "$ipv6" = 1 ] || ipv6=""
  30
  31         json_get_var peerdns peerdns
  32         [ "$peerdns" = 0 ] && peerdns="" || peerdns="1"
  33
  34         json_get_var defaultroute defaultroute
  35         if [ "$defaultroute" = 1 ]; then
  36                 defaultroute="defaultroute replacedefaultroute";
  37         else
  38                 defaultroute="nodefaultroute"
  39         fi
  40
  41         json_get_var demand demand
  42         if [ "${demand:-0}" -gt 0 ]; then
  43                 demand="precompiled-active-filter /etc/ppp/filter demand idle $demand"
  44         else
  45                 demand="persist"
  46         fi
  47
  48         [ -n "$mtu" ] || json_get_var mtu mtu
  49
  50         json_get_var keepalive keepalive
  51         local interval="${keepalive##*[, ]}"
  52         [ "$interval" != "$keepalive" ] || interval=5
  53
  54         json_get_var username username
  55         json_get_var password password
  56
  57         [ -n "$connect" ] || json_get_var connect connect
  58         [ -n "$disconnect" ] || json_get_var disconnect disconnect
  59         json_get_var pppd_options pppd_options
  60
  61         proto_run_command "$config" /usr/sbin/pppd \
  62                 nodetach ipparam "$config" \
  63                 ifname "${proto:-ppp}-$config" \
  64                 ${keepalive:+lcp-echo-interval $interval lcp-echo-failure ${keepalive%%[, ]*}} \
  65                 ${ipv6:++ipv6} $defaultroute \
  66                 ${peerdns:+usepeerdns} \
  67                 $demand maxfail 1 \
  68                 ${username:+user "$username" password "$password"} \
  69                 ${connect:+connect "$connect"} \
  70                 ${disconnect:+disconnect "$disconnect"} \
  71                 ip-up-script /lib/netifd/ppp-up \
  72                 ipv6-up-script /lib/netifd/ppp-up \
  73                 ip-down-script /lib/netifd/ppp-down \
  74                 ipv6-down-script /lib/netifd/ppp-down \
  75                 ${mtu:+mtu $mtu mru $mtu} \
  76                 $pppd_options "$@"
  77 }
  78
  79 ppp_generic_teardown() {
  80         local interface="$1"
  81
  82         case "$ERROR" in
  83                 11|19)
  84                         proto_notify_error "$interface" AUTH_FAILED
  85                         proto_block_restart "$interface"
  86                 ;;
  87         esac
  88         proto_kill_command "$interface"
  89 }
  90
  91 # PPP on serial device
  92
  93 proto_ppp_init_config() {
  94         proto_config_add_string "device"
  95         ppp_generic_init_config
  96         no_device=1
  97         available=1
  98 }
  99
 100 proto_ppp_setup() {
 101         local config="$1"
 102
 103         json_get_var device device
 104         ppp_generic_setup "$config" "$device"
 105 }
 106
 107 proto_ppp_teardown() {
 108         ppp_generic_teardown "$@"
 109 }
 110
 111 proto_pppoe_init_config() {
 112         ppp_generic_init_config
 113         proto_config_add_string "ac"
 114         proto_config_add_string "service"
 115 }
 116
 117 proto_pppoe_setup() {
 118         local config="$1"
 119         local iface="$2"
 120
 121         for module in slhc ppp_generic pppox pppoe; do
 122                 /sbin/insmod $module 2>&- >&-
 123         done
 124
 125         json_get_var mtu mtu
 126         mtu="${mtu:-1492}"
 127
 128         json_get_var ac ac
 129         json_get_var service service
 130
 131         ppp_generic_setup "$config" \
 132                 plugin rp-pppoe.so \
 133                 ${ac:+rp_pppoe_ac "$ac"} \
 134                 ${service:+rp_pppoe_service "$service"} \
 135                 "nic-$iface"
 136 }
 137
 138 proto_pppoe_teardown() {
 139         ppp_generic_teardown "$@"
 140 }
 141
 142 proto_pppoa_init_config() {
 143         ppp_generic_init_config
 144         proto_config_add_int "atmdev"
 145         proto_config_add_int "vci"
 146         proto_config_add_int "vpi"
 147         proto_config_add_string "encaps"
 148 }
 149
 150 proto_pppoa_setup() {
 151         local config="$1"
 152         local iface="$2"
 153
 154         for module in slhc ppp_generic pppox pppoatm; do
 155                 /sbin/insmod $module 2>&- >&-
 156         done
 157
 158         json_get_var atmdev atmdev
 159         json_get_var vci vci
 160         json_get_var vpi vpi
 161
 162         json_get_var encaps encaps
 163         case "$encaps" in
 164                 1|vc) encaps="vc-encaps" ;;
 165                 *) encaps="llc-encaps" ;;
 166         esac
 167
 168         ppp_generic_setup "$config" \
 169                 plugin pppoatm.so \
 170                 ${atmdev:+$atmdev.}${vpi:-8}.${vci:-35} \
 171                 ${encaps}
 172 }
 173
 174 proto_pppoa_teardown() {
 175         ppp_generic_teardown "$@"
 176 }
 177
 178 [ -n "$INCLUDE_ONLY" ] || {
 179         add_protocol ppp
 180         [ -f /usr/lib/pppd/*/rp-pppoe.so ] && add_protocol pppoe
 181         [ -f /usr/lib/pppd/*/pppoatm.so ] && add_protocol pppoa
 182 }
 183