package/ppp/files/ppp.sh

   1 #!/bin/sh
   2
   3 [ -x /usr/sbin/pppd ] || exit 0
   4
   5 [ -n "$INCLUDE_ONLY" ] || {
   6         . /lib/functions.sh
   7         . ../netifd-proto.sh
   8         init_proto "$@"
   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="$1"; shift
  27
  28         json_get_vars ipv6 peerdns defaultroute demand keepalive username password pppd_options
  29         [ "$ipv6" = 1 ] || ipv6=""
  30         [ "$peerdns" = 0 ] && peerdns="" || peerdns="1"
  31         if [ "$defaultroute" = 1 ]; then
  32                 defaultroute="defaultroute replacedefaultroute";
  33         else
  34                 defaultroute="nodefaultroute"
  35         fi
  36         if [ "${demand:-0}" -gt 0 ]; then
  37                 demand="precompiled-active-filter /etc/ppp/filter demand idle $demand"
  38         else
  39                 demand="persist"
  40         fi
  41
  42         [ -n "$mtu" ] || json_get_var mtu mtu
  43
  44         local interval="${keepalive##*[, ]}"
  45         [ "$interval" != "$keepalive" ] || interval=5
  46         [ -n "$connect" ] || json_get_var connect connect
  47         [ -n "$disconnect" ] || json_get_var disconnect disconnect
  48
  49         proto_run_command "$config" /usr/sbin/pppd \
  50                 nodetach ipparam "$config" \
  51                 ifname "${proto:-ppp}-$config" \
  52                 ${keepalive:+lcp-echo-interval $interval lcp-echo-failure ${keepalive%%[, ]*}} \
  53                 ${ipv6:++ipv6} $defaultroute \
  54                 ${peerdns:+usepeerdns} \
  55                 $demand maxfail 1 \
  56                 ${username:+user "$username" password "$password"} \
  57                 ${connect:+connect "$connect"} \
  58                 ${disconnect:+disconnect "$disconnect"} \
  59                 ip-up-script /lib/netifd/ppp-up \
  60                 ipv6-up-script /lib/netifd/ppp-up \
  61                 ip-down-script /lib/netifd/ppp-down \
  62                 ipv6-down-script /lib/netifd/ppp-down \
  63                 ${mtu:+mtu $mtu mru $mtu} \
  64                 $pppd_options "$@"
  65 }
  66
  67 ppp_generic_teardown() {
  68         local interface="$1"
  69
  70         case "$ERROR" in
  71                 11|19)
  72                         proto_notify_error "$interface" AUTH_FAILED
  73                         proto_block_restart "$interface"
  74                 ;;
  75                 2)
  76                         proto_notify_error "$interface" INVALID_OPTIONS
  77                         proto_block_restart "$interface"
  78                 ;;
  79         esac
  80         proto_kill_command "$interface"
  81 }
  82
  83 # PPP on serial device
  84
  85 proto_ppp_init_config() {
  86         proto_config_add_string "device"
  87         ppp_generic_init_config
  88         no_device=1
  89         available=1
  90 }
  91
  92 proto_ppp_setup() {
  93         local config="$1"
  94
  95         json_get_var device device
  96         ppp_generic_setup "$config" "$device"
  97 }
  98
  99 proto_ppp_teardown() {
 100         ppp_generic_teardown "$@"
 101 }
 102
 103 proto_pppoe_init_config() {
 104         ppp_generic_init_config
 105         proto_config_add_string "ac"
 106         proto_config_add_string "service"
 107 }
 108
 109 proto_pppoe_setup() {
 110         local config="$1"
 111         local iface="$2"
 112
 113         for module in slhc ppp_generic pppox pppoe; do
 114                 /sbin/insmod $module 2>&- >&-
 115         done
 116
 117         json_get_var mtu mtu
 118         mtu="${mtu:-1492}"
 119
 120         json_get_var ac ac
 121         json_get_var service service
 122
 123         ppp_generic_setup "$config" \
 124                 plugin rp-pppoe.so \
 125                 ${ac:+rp_pppoe_ac "$ac"} \
 126                 ${service:+rp_pppoe_service "$service"} \
 127                 "nic-$iface"
 128 }
 129
 130 proto_pppoe_teardown() {
 131         ppp_generic_teardown "$@"
 132 }
 133
 134 proto_pppoa_init_config() {
 135         ppp_generic_init_config
 136         proto_config_add_int "atmdev"
 137         proto_config_add_int "vci"
 138         proto_config_add_int "vpi"
 139         proto_config_add_string "encaps"
 140         no_device=1
 141         available=1
 142 }
 143
 144 proto_pppoa_setup() {
 145         local config="$1"
 146         local iface="$2"
 147
 148         for module in slhc ppp_generic pppox pppoatm; do
 149                 /sbin/insmod $module 2>&- >&-
 150         done
 151
 152         json_get_vars atmdev vci vpi encaps
 153
 154         case "$encaps" in
 155                 1|vc) encaps="vc-encaps" ;;
 156                 *) encaps="llc-encaps" ;;
 157         esac
 158
 159         ppp_generic_setup "$config" \
 160                 plugin pppoatm.so \
 161                 ${atmdev:+$atmdev.}${vpi:-8}.${vci:-35} \
 162                 ${encaps}
 163 }
 164
 165 proto_pppoa_teardown() {
 166         ppp_generic_teardown "$@"
 167 }
 168
 169 proto_pptp_init_config() {
 170         ppp_generic_init_config
 171         proto_config_add_string "server"
 172         proto_config_add_boolean "buffering"
 173         available=1
 174         no_device=1
 175 }
 176
 177 proto_pptp_setup() {
 178         local config="$1"
 179         local iface="$2"
 180
 181         local ip serv_addr server
 182         json_get_var server server && {
 183                 for ip in $(resolveip -t 5 "$server"); do
 184                         ( proto_add_host_dependency "$config" "$ip" )
 185                         serv_addr=1
 186                 done
 187         }
 188         [ -n "$serv_addr" ] || {
 189                 echo "Could not resolve server address"
 190                 sleep 5
 191                 proto_setup_failed "$config"
 192                 exit 1
 193         }
 194
 195         local buffering
 196         json_get_var buffering buffering
 197         [ "${buffering:-1}" == 0 ] && buffering="--nobuffer" || buffering=
 198
 199         local load
 200         for module in slhc ppp_generic ppp_async ppp_mppe ip_gre gre pptp; do
 201                 grep -q "$module" /proc/modules && continue
 202                 /sbin/insmod $module 2>&- >&-
 203                 load=1
 204         done
 205         [ "$load" = "1" ] && sleep 1
 206
 207         ppp_generic_setup "$config" \
 208                 plugin pptp.so \
 209                 pptp_server $server \
 210                 file /etc/ppp/options.pptp
 211 }
 212
 213 proto_pptp_teardown() {
 214         ppp_generic_teardown "$@"
 215 }
 216
 217 [ -n "$INCLUDE_ONLY" ] || {
 218         add_protocol ppp
 219         [ -f /usr/lib/pppd/*/rp-pppoe.so ] && add_protocol pppoe
 220         [ -f /usr/lib/pppd/*/pppoatm.so ] && add_protocol pppoa
 221         [ -f /usr/lib/pppd/*/pptp.so ] && add_protocol pptp
 222 }
 223