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="$1"; shift
  27
  28         json_get_vars ipv6 peerdns defaultroute demand keepalive username password pppd_options
  29         [ "$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         esac
  76         proto_kill_command "$interface"
  77 }
  78
  79 # PPP on serial device
  80
  81 proto_ppp_init_config() {
  82         proto_config_add_string "device"
  83         ppp_generic_init_config
  84         no_device=1
  85         available=1
  86 }
  87
  88 proto_ppp_setup() {
  89         local config="$1"
  90
  91         json_get_var device device
  92         ppp_generic_setup "$config" "$device"
  93 }
  94
  95 proto_ppp_teardown() {
  96         ppp_generic_teardown "$@"
  97 }
  98
  99 proto_pppoe_init_config() {
 100         ppp_generic_init_config
 101         proto_config_add_string "ac"
 102         proto_config_add_string "service"
 103 }
 104
 105 proto_pppoe_setup() {
 106         local config="$1"
 107         local iface="$2"
 108
 109         for module in slhc ppp_generic pppox pppoe; do
 110                 /sbin/insmod $module 2>&- >&-
 111         done
 112
 113         json_get_var mtu mtu
 114         mtu="${mtu:-1492}"
 115
 116         json_get_var ac ac
 117         json_get_var service service
 118
 119         ppp_generic_setup "$config" \
 120                 plugin rp-pppoe.so \
 121                 ${ac:+rp_pppoe_ac "$ac"} \
 122                 ${service:+rp_pppoe_service "$service"} \
 123                 "nic-$iface"
 124 }
 125
 126 proto_pppoe_teardown() {
 127         ppp_generic_teardown "$@"
 128 }
 129
 130 proto_pppoa_init_config() {
 131         ppp_generic_init_config
 132         proto_config_add_int "atmdev"
 133         proto_config_add_int "vci"
 134         proto_config_add_int "vpi"
 135         proto_config_add_string "encaps"
 136 }
 137
 138 proto_pppoa_setup() {
 139         local config="$1"
 140         local iface="$2"
 141
 142         for module in slhc ppp_generic pppox pppoatm; do
 143                 /sbin/insmod $module 2>&- >&-
 144         done
 145
 146         json_get_vars atmdev vci vpi encaps
 147
 148         case "$encaps" in
 149                 1|vc) encaps="vc-encaps" ;;
 150                 *) encaps="llc-encaps" ;;
 151         esac
 152
 153         ppp_generic_setup "$config" \
 154                 plugin pppoatm.so \
 155                 ${atmdev:+$atmdev.}${vpi:-8}.${vci:-35} \
 156                 ${encaps}
 157 }
 158
 159 proto_pppoa_teardown() {
 160         ppp_generic_teardown "$@"
 161 }
 162
 163 [ -n "$INCLUDE_ONLY" ] || {
 164         add_protocol ppp
 165         [ -f /usr/lib/pppd/*/rp-pppoe.so ] && add_protocol pppoe
 166         [ -f /usr/lib/pppd/*/pppoatm.so ] && add_protocol pppoa
 167 }
 168