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