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 "ipv6"
  20         proto_config_add_boolean "authfail"
  21         proto_config_add_int "mtu"
  22 }
  23
  24 ppp_generic_setup() {
  25         local config="$1"; shift
  26
  27         json_get_vars ipv6 demand keepalive username password pppd_options
  28         [ "$ipv6" = 1 ] || ipv6=""
  29         if [ "${demand:-0}" -gt 0 ]; then
  30                 demand="precompiled-active-filter /etc/ppp/filter demand idle $demand"
  31         else
  32                 demand="persist"
  33         fi
  34
  35         [ -n "$mtu" ] || json_get_var mtu mtu
  36
  37         local interval="${keepalive##*[, ]}"
  38         [ "$interval" != "$keepalive" ] || interval=5
  39         [ -n "$connect" ] || json_get_var connect connect
  40         [ -n "$disconnect" ] || json_get_var disconnect disconnect
  41
  42         proto_run_command "$config" /usr/sbin/pppd \
  43                 nodetach ipparam "$config" \
  44                 ifname "${proto:-ppp}-$config" \
  45                 ${keepalive:+lcp-echo-interval $interval lcp-echo-failure ${keepalive%%[, ]*}} \
  46                 ${ipv6:++ipv6} \
  47                 nodefaultroute \
  48                 usepeerdns \
  49                 $demand maxfail 1 \
  50                 ${username:+user "$username" password "$password"} \
  51                 ${connect:+connect "$connect"} \
  52                 ${disconnect:+disconnect "$disconnect"} \
  53                 ip-up-script /lib/netifd/ppp-up \
  54                 ipv6-up-script /lib/netifd/ppp-up \
  55                 ip-down-script /lib/netifd/ppp-down \
  56                 ipv6-down-script /lib/netifd/ppp-down \
  57                 ${mtu:+mtu $mtu mru $mtu} \
  58                 $pppd_options "$@"
  59 }
  60
  61 ppp_generic_teardown() {
  62         local interface="$1"
  63
  64         case "$ERROR" in
  65                 11|19)
  66                         proto_notify_error "$interface" AUTH_FAILED
  67                         json_get_var authfail authfail
  68                         if [ "${authfail:-0}" -gt 0 ]; then
  69                                 proto_block_restart "$interface"
  70                         fi
  71                 ;;
  72                 2)
  73                         proto_notify_error "$interface" INVALID_OPTIONS
  74                         proto_block_restart "$interface"
  75                 ;;
  76         esac
  77         proto_kill_command "$interface"
  78 }
  79
  80 # PPP on serial device
  81
  82 proto_ppp_init_config() {
  83         proto_config_add_string "device"
  84         ppp_generic_init_config
  85         no_device=1
  86         available=1
  87 }
  88
  89 proto_ppp_setup() {
  90         local config="$1"
  91
  92         json_get_var device device
  93         ppp_generic_setup "$config" "$device"
  94 }
  95
  96 proto_ppp_teardown() {
  97         ppp_generic_teardown "$@"
  98 }
  99
 100 proto_pppoe_init_config() {
 101         ppp_generic_init_config
 102         proto_config_add_string "ac"
 103         proto_config_add_string "service"
 104 }
 105
 106 proto_pppoe_setup() {
 107         local config="$1"
 108         local iface="$2"
 109
 110         for module in slhc ppp_generic pppox pppoe; do
 111                 /sbin/insmod $module 2>&- >&-
 112         done
 113
 114         json_get_var mtu mtu
 115         mtu="${mtu:-1492}"
 116
 117         json_get_var ac ac
 118         json_get_var service service
 119
 120         ppp_generic_setup "$config" \
 121                 plugin rp-pppoe.so \
 122                 ${ac:+rp_pppoe_ac "$ac"} \
 123                 ${service:+rp_pppoe_service "$service"} \
 124                 "nic-$iface"
 125 }
 126
 127 proto_pppoe_teardown() {
 128         ppp_generic_teardown "$@"
 129 }
 130
 131 proto_pppoa_init_config() {
 132         ppp_generic_init_config
 133         proto_config_add_int "atmdev"
 134         proto_config_add_int "vci"
 135         proto_config_add_int "vpi"
 136         proto_config_add_string "encaps"
 137         no_device=1
 138         available=1
 139 }
 140
 141 proto_pppoa_setup() {
 142         local config="$1"
 143         local iface="$2"
 144
 145         for module in slhc ppp_generic pppox pppoatm; do
 146                 /sbin/insmod $module 2>&- >&-
 147         done
 148
 149         json_get_vars atmdev vci vpi encaps
 150
 151         case "$encaps" in
 152                 1|vc) encaps="vc-encaps" ;;
 153                 *) encaps="llc-encaps" ;;
 154         esac
 155
 156         ppp_generic_setup "$config" \
 157                 plugin pppoatm.so \
 158                 ${atmdev:+$atmdev.}${vpi:-8}.${vci:-35} \
 159                 ${encaps}
 160 }
 161
 162 proto_pppoa_teardown() {
 163         ppp_generic_teardown "$@"
 164 }
 165
 166 proto_pptp_init_config() {
 167         ppp_generic_init_config
 168         proto_config_add_string "server"
 169         available=1
 170         no_device=1
 171 }
 172
 173 proto_pptp_setup() {
 174         local config="$1"
 175         local iface="$2"
 176
 177         local ip serv_addr server
 178         json_get_var server server && {
 179                 for ip in $(resolveip -t 5 "$server"); do
 180                         ( proto_add_host_dependency "$config" "$ip" )
 181                         serv_addr=1
 182                 done
 183         }
 184         [ -n "$serv_addr" ] || {
 185                 echo "Could not resolve server address"
 186                 sleep 5
 187                 proto_setup_failed "$config"
 188                 exit 1
 189         }
 190
 191         local load
 192         for module in slhc ppp_generic ppp_async ppp_mppe ip_gre gre pptp; do
 193                 grep -q "$module" /proc/modules && continue
 194                 /sbin/insmod $module 2>&- >&-
 195                 load=1
 196         done
 197         [ "$load" = "1" ] && sleep 1
 198
 199         ppp_generic_setup "$config" \
 200                 plugin pptp.so \
 201                 pptp_server $server \
 202                 file /etc/ppp/options.pptp
 203 }
 204
 205 proto_pptp_teardown() {
 206         ppp_generic_teardown "$@"
 207 }
 208
 209 [ -n "$INCLUDE_ONLY" ] || {
 210         add_protocol ppp
 211         [ -f /usr/lib/pppd/*/rp-pppoe.so ] && add_protocol pppoe
 212         [ -f /usr/lib/pppd/*/pppoatm.so ] && add_protocol pppoa
 213         [ -f /usr/lib/pppd/*/pptp.so ] && add_protocol pptp
 214 }
 215