package/network/services/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_boolean "authfail"
  23         proto_config_add_int "mtu"
  24 }
  25
  26 ppp_generic_setup() {
  27         local config="$1"; shift
  28
  29         json_get_vars ipv6 peerdns defaultroute demand keepalive username password pppd_options
  30         [ "$ipv6" = 1 ] || ipv6=""
  31         [ "$peerdns" = 0 ] && peerdns="" || peerdns="1"
  32         if [ "$defaultroute" = 1 ]; then
  33                 defaultroute="defaultroute replacedefaultroute";
  34         else
  35                 defaultroute="nodefaultroute"
  36         fi
  37         if [ "${demand:-0}" -gt 0 ]; then
  38                 demand="precompiled-active-filter /etc/ppp/filter demand idle $demand"
  39         else
  40                 demand="persist"
  41         fi
  42
  43         [ -n "$mtu" ] || json_get_var mtu mtu
  44
  45         local interval="${keepalive##*[, ]}"
  46         [ "$interval" != "$keepalive" ] || interval=5
  47         [ -n "$connect" ] || json_get_var connect connect
  48         [ -n "$disconnect" ] || json_get_var disconnect disconnect
  49
  50         proto_run_command "$config" /usr/sbin/pppd \
  51                 nodetach ipparam "$config" \
  52                 ifname "${proto:-ppp}-$config" \
  53                 ${keepalive:+lcp-echo-interval $interval lcp-echo-failure ${keepalive%%[, ]*}} \
  54                 ${ipv6:++ipv6} $defaultroute \
  55                 ${peerdns:+usepeerdns} \
  56                 $demand maxfail 1 \
  57                 ${username:+user "$username" password "$password"} \
  58                 ${connect:+connect "$connect"} \
  59                 ${disconnect:+disconnect "$disconnect"} \
  60                 ip-up-script /lib/netifd/ppp-up \
  61                 ipv6-up-script /lib/netifd/ppp-up \
  62                 ip-down-script /lib/netifd/ppp-down \
  63                 ipv6-down-script /lib/netifd/ppp-down \
  64                 ${mtu:+mtu $mtu mru $mtu} \
  65                 $pppd_options "$@"
  66 }
  67
  68 ppp_generic_teardown() {
  69         local interface="$1"
  70
  71         case "$ERROR" in
  72                 11|19)
  73                         proto_notify_error "$interface" AUTH_FAILED
  74                         json_get_var authfail authfail
  75                         if [ "${authfail:-0}" -gt 0 ]; then
  76                                 proto_block_restart "$interface"
  77                         fi
  78                 ;;
  79                 2)
  80                         proto_notify_error "$interface" INVALID_OPTIONS
  81                         proto_block_restart "$interface"
  82                 ;;
  83         esac
  84         proto_kill_command "$interface"
  85 }
  86
  87 # PPP on serial device
  88
  89 proto_ppp_init_config() {
  90         proto_config_add_string "device"
  91         ppp_generic_init_config
  92         no_device=1
  93         available=1
  94 }
  95
  96 proto_ppp_setup() {
  97         local config="$1"
  98
  99         json_get_var device device
 100         ppp_generic_setup "$config" "$device"
 101 }
 102
 103 proto_ppp_teardown() {
 104         ppp_generic_teardown "$@"
 105 }
 106
 107 proto_pppoe_init_config() {
 108         ppp_generic_init_config
 109         proto_config_add_string "ac"
 110         proto_config_add_string "service"
 111 }
 112
 113 proto_pppoe_setup() {
 114         local config="$1"
 115         local iface="$2"
 116
 117         for module in slhc ppp_generic pppox pppoe; do
 118                 /sbin/insmod $module 2>&- >&-
 119         done
 120
 121         json_get_var mtu mtu
 122         mtu="${mtu:-1492}"
 123
 124         json_get_var ac ac
 125         json_get_var service service
 126
 127         ppp_generic_setup "$config" \
 128                 plugin rp-pppoe.so \
 129                 ${ac:+rp_pppoe_ac "$ac"} \
 130                 ${service:+rp_pppoe_service "$service"} \
 131                 "nic-$iface"
 132 }
 133
 134 proto_pppoe_teardown() {
 135         ppp_generic_teardown "$@"
 136 }
 137
 138 proto_pppoa_init_config() {
 139         ppp_generic_init_config
 140         proto_config_add_int "atmdev"
 141         proto_config_add_int "vci"
 142         proto_config_add_int "vpi"
 143         proto_config_add_string "encaps"
 144         no_device=1
 145         available=1
 146 }
 147
 148 proto_pppoa_setup() {
 149         local config="$1"
 150         local iface="$2"
 151
 152         for module in slhc ppp_generic pppox pppoatm; do
 153                 /sbin/insmod $module 2>&- >&-
 154         done
 155
 156         json_get_vars atmdev vci vpi encaps
 157
 158         case "$encaps" in
 159                 1|vc) encaps="vc-encaps" ;;
 160                 *) encaps="llc-encaps" ;;
 161         esac
 162
 163         ppp_generic_setup "$config" \
 164                 plugin pppoatm.so \
 165                 ${atmdev:+$atmdev.}${vpi:-8}.${vci:-35} \
 166                 ${encaps}
 167 }
 168
 169 proto_pppoa_teardown() {
 170         ppp_generic_teardown "$@"
 171 }
 172
 173 proto_pptp_init_config() {
 174         ppp_generic_init_config
 175         proto_config_add_string "server"
 176         available=1
 177         no_device=1
 178 }
 179
 180 proto_pptp_setup() {
 181         local config="$1"
 182         local iface="$2"
 183
 184         local ip serv_addr server
 185         json_get_var server server && {
 186                 for ip in $(resolveip -t 5 "$server"); do
 187                         ( proto_add_host_dependency "$config" "$ip" )
 188                         serv_addr=1
 189                 done
 190         }
 191         [ -n "$serv_addr" ] || {
 192                 echo "Could not resolve server address"
 193                 sleep 5
 194                 proto_setup_failed "$config"
 195                 exit 1
 196         }
 197
 198         local load
 199         for module in slhc ppp_generic ppp_async ppp_mppe ip_gre gre pptp; do
 200                 grep -q "$module" /proc/modules && continue
 201                 /sbin/insmod $module 2>&- >&-
 202                 load=1
 203         done
 204         [ "$load" = "1" ] && sleep 1
 205
 206         ppp_generic_setup "$config" \
 207                 plugin pptp.so \
 208                 pptp_server $server \
 209                 file /etc/ppp/options.pptp
 210 }
 211
 212 proto_pptp_teardown() {
 213         ppp_generic_teardown "$@"
 214 }
 215
 216 [ -n "$INCLUDE_ONLY" ] || {
 217         add_protocol ppp
 218         [ -f /usr/lib/pppd/*/rp-pppoe.so ] && add_protocol pppoe
 219         [ -f /usr/lib/pppd/*/pppoatm.so ] && add_protocol pppoa
 220         [ -f /usr/lib/pppd/*/pptp.so ] && add_protocol pptp
 221 }
 222