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_string 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         elif [ -z "$ipv6" -o "$ipv6" = auto ]; then
  32                 ipv6=1
  33                 proto_export "AUTOIPV6=1"
  34         fi
  35
  36         if [ "${demand:-0}" -gt 0 ]; then
  37                 demand="precompiled-active-filter /etc/ppp/filter demand idle $demand"
  38         else
  39                 demand="persist"
  40         fi
  41         [ "${keepalive:-0}" -lt 1 ] && keepalive=""
  42         [ -n "$mtu" ] || json_get_var mtu mtu
  43         [ -n "$pppname" ] || pppname="${proto:-ppp}-$config"
  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 "$config" \
  52                 ifname "$pppname" \
  53                 ${keepalive:+lcp-echo-interval $interval lcp-echo-failure ${keepalive%%[, ]*}} \
  54                 ${ipv6:++ipv6} \
  55                 nodefaultroute \
  56                 usepeerdns \
  57                 $demand maxfail 1 \
  58                 ${username:+user "$username" password "$password"} \
  59                 ${connect:+connect "$connect"} \
  60                 ${disconnect:+disconnect "$disconnect"} \
  61                 ip-up-script /lib/netifd/ppp-up \
  62                 ipv6-up-script /lib/netifd/ppp-up \
  63                 ip-down-script /lib/netifd/ppp-down \
  64                 ipv6-down-script /lib/netifd/ppp-down \
  65                 ${mtu:+mtu $mtu mru $mtu} \
  66                 "$@" $pppd_options
  67 }
  68
  69 ppp_generic_teardown() {
  70         local interface="$1"
  71
  72         case "$ERROR" in
  73                 11|19)
  74                         proto_notify_error "$interface" AUTH_FAILED
  75                         json_get_var authfail authfail
  76                         if [ "${authfail:-0}" -gt 0 ]; then
  77                                 proto_block_restart "$interface"
  78                         fi
  79                 ;;
  80                 2)
  81                         proto_notify_error "$interface" INVALID_OPTIONS
  82                         proto_block_restart "$interface"
  83                 ;;
  84         esac
  85         proto_kill_command "$interface"
  86 }
  87
  88 # PPP on serial device
  89
  90 proto_ppp_init_config() {
  91         proto_config_add_string "device"
  92         ppp_generic_init_config
  93         no_device=1
  94         available=1
  95 }
  96
  97 proto_ppp_setup() {
  98         local config="$1"
  99
 100         json_get_var device device
 101         ppp_generic_setup "$config" "$device"
 102 }
 103
 104 proto_ppp_teardown() {
 105         ppp_generic_teardown "$@"
 106 }
 107
 108 proto_pppoe_init_config() {
 109         ppp_generic_init_config
 110         proto_config_add_string "ac"
 111         proto_config_add_string "service"
 112 }
 113
 114 proto_pppoe_setup() {
 115         local config="$1"
 116         local iface="$2"
 117
 118         for module in slhc ppp_generic pppox pppoe; do
 119                 /sbin/insmod $module 2>&- >&-
 120         done
 121
 122         json_get_var mtu mtu
 123         mtu="${mtu:-1492}"
 124
 125         json_get_var ac ac
 126         json_get_var service service
 127
 128         ppp_generic_setup "$config" \
 129                 plugin rp-pppoe.so \
 130                 ${ac:+rp_pppoe_ac "$ac"} \
 131                 ${service:+rp_pppoe_service "$service"} \
 132                 "nic-$iface"
 133 }
 134
 135 proto_pppoe_teardown() {
 136         ppp_generic_teardown "$@"
 137 }
 138
 139 proto_pppoa_init_config() {
 140         ppp_generic_init_config
 141         proto_config_add_int "atmdev"
 142         proto_config_add_int "vci"
 143         proto_config_add_int "vpi"
 144         proto_config_add_string "encaps"
 145         no_device=1
 146         available=1
 147 }
 148
 149 proto_pppoa_setup() {
 150         local config="$1"
 151         local iface="$2"
 152
 153         for module in slhc ppp_generic pppox pppoatm; do
 154                 /sbin/insmod $module 2>&- >&-
 155         done
 156
 157         json_get_vars atmdev vci vpi encaps
 158
 159         case "$encaps" in
 160                 1|vc) encaps="vc-encaps" ;;
 161                 *) encaps="llc-encaps" ;;
 162         esac
 163
 164         ppp_generic_setup "$config" \
 165                 plugin pppoatm.so \
 166                 ${atmdev:+$atmdev.}${vpi:-8}.${vci:-35} \
 167                 ${encaps}
 168 }
 169
 170 proto_pppoa_teardown() {
 171         ppp_generic_teardown "$@"
 172 }
 173
 174 proto_pptp_init_config() {
 175         ppp_generic_init_config
 176         proto_config_add_string "server"
 177         available=1
 178         no_device=1
 179 }
 180
 181 proto_pptp_setup() {
 182         local config="$1"
 183         local iface="$2"
 184
 185         local ip serv_addr server
 186         json_get_var server server && {
 187                 for ip in $(resolveip -t 5 "$server"); do
 188                         ( proto_add_host_dependency "$config" "$ip" )
 189                         serv_addr=1
 190                 done
 191         }
 192         [ -n "$serv_addr" ] || {
 193                 echo "Could not resolve server address"
 194                 sleep 5
 195                 proto_setup_failed "$config"
 196                 exit 1
 197         }
 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