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_boolean keepalive_adaptive
  16         proto_config_add_int demand
  17         proto_config_add_string pppd_options
  18         proto_config_add_string 'connect:file'
  19         proto_config_add_string 'disconnect:file'
  20         proto_config_add_string ipv6
  21         proto_config_add_boolean authfail
  22         proto_config_add_int mtu
  23         proto_config_add_string pppname
  24 }
  25
  26 ppp_generic_setup() {
  27         local config="$1"; shift
  28
  29         json_get_vars ipv6 demand keepalive keepalive_adaptive username password pppd_options pppname
  30         if [ "$ipv6" = 0 ]; then
  31                 ipv6=""
  32         elif [ -z "$ipv6" -o "$ipv6" = auto ]; then
  33                 ipv6=1
  34                 proto_export "AUTOIPV6=1"
  35         fi
  36
  37         if [ "${demand:-0}" -gt 0 ]; then
  38                 demand="precompiled-active-filter /etc/ppp/filter demand idle $demand"
  39         else
  40                 demand="persist"
  41         fi
  42         [ -n "$mtu" ] || json_get_var mtu mtu
  43         [ -n "$pppname" ] || pppname="${proto:-ppp}-$config"
  44
  45         local lcp_failure="${keepalive%%[, ]*}"
  46         local lcp_interval="${keepalive##*[, ]}"
  47         local lcp_adaptive="lcp-echo-adaptive"
  48         [ "${lcp_failure:-0}" -lt 1 ] && lcp_failure=""
  49         [ "$lcp_interval" != "$keepalive" ] || lcp_interval=5
  50         [ "${keepalive_adaptive:-1}" -lt 1 ] && lcp_adaptive=""
  51         [ -n "$connect" ] || json_get_var connect connect
  52         [ -n "$disconnect" ] || json_get_var disconnect disconnect
  53
  54         proto_run_command "$config" /usr/sbin/pppd \
  55                 nodetach ipparam "$config" \
  56                 ifname "$pppname" \
  57                 ${lcp_failure:+lcp-echo-interval $lcp_interval lcp-echo-failure $lcp_failure $lcp_adaptive} \
  58                 ${ipv6:++ipv6} \
  59                 nodefaultroute \
  60                 usepeerdns \
  61                 $demand maxfail 1 \
  62                 ${username:+user "$username" password "$password"} \
  63                 ${connect:+connect "$connect"} \
  64                 ${disconnect:+disconnect "$disconnect"} \
  65                 ip-up-script /lib/netifd/ppp-up \
  66                 ipv6-up-script /lib/netifd/ppp-up \
  67                 ip-down-script /lib/netifd/ppp-down \
  68                 ipv6-down-script /lib/netifd/ppp-down \
  69                 ${mtu:+mtu $mtu mru $mtu} \
  70                 "$@" $pppd_options
  71 }
  72
  73 ppp_generic_teardown() {
  74         local interface="$1"
  75
  76         case "$ERROR" in
  77                 11|19)
  78                         proto_notify_error "$interface" AUTH_FAILED
  79                         json_get_var authfail authfail
  80                         if [ "${authfail:-0}" -gt 0 ]; then
  81                                 proto_block_restart "$interface"
  82                         fi
  83                 ;;
  84                 2)
  85                         proto_notify_error "$interface" INVALID_OPTIONS
  86                         proto_block_restart "$interface"
  87                 ;;
  88         esac
  89         proto_kill_command "$interface"
  90 }
  91
  92 # PPP on serial device
  93
  94 proto_ppp_init_config() {
  95         proto_config_add_string "device"
  96         ppp_generic_init_config
  97         no_device=1
  98         available=1
  99 }
 100
 101 proto_ppp_setup() {
 102         local config="$1"
 103
 104         json_get_var device device
 105         ppp_generic_setup "$config" "$device"
 106 }
 107
 108 proto_ppp_teardown() {
 109         ppp_generic_teardown "$@"
 110 }
 111
 112 proto_pppoe_init_config() {
 113         ppp_generic_init_config
 114         proto_config_add_string "ac"
 115         proto_config_add_string "service"
 116         proto_config_add_string "host_uniq"
 117 }
 118
 119 proto_pppoe_setup() {
 120         local config="$1"
 121         local iface="$2"
 122
 123         for module in slhc ppp_generic pppox pppoe; do
 124                 /sbin/insmod $module 2>&- >&-
 125         done
 126
 127         json_get_var mtu mtu
 128         mtu="${mtu:-1492}"
 129
 130         json_get_var ac ac
 131         json_get_var service service
 132         json_get_var host_uniq host_uniq
 133
 134         ppp_generic_setup "$config" \
 135                 plugin rp-pppoe.so \
 136                 ${ac:+rp_pppoe_ac "$ac"} \
 137                 ${service:+rp_pppoe_service "$service"} \
 138                 ${host_uniq:+host-uniq "$host_uniq"} \
 139                 "nic-$iface"
 140 }
 141
 142 proto_pppoe_teardown() {
 143         ppp_generic_teardown "$@"
 144 }
 145
 146 proto_pppoa_init_config() {
 147         ppp_generic_init_config
 148         proto_config_add_int "atmdev"
 149         proto_config_add_int "vci"
 150         proto_config_add_int "vpi"
 151         proto_config_add_string "encaps"
 152         no_device=1
 153         available=1
 154 }
 155
 156 proto_pppoa_setup() {
 157         local config="$1"
 158         local iface="$2"
 159
 160         for module in slhc ppp_generic pppox pppoatm; do
 161                 /sbin/insmod $module 2>&- >&-
 162         done
 163
 164         json_get_vars atmdev vci vpi encaps
 165
 166         case "$encaps" in
 167                 1|vc) encaps="vc-encaps" ;;
 168                 *) encaps="llc-encaps" ;;
 169         esac
 170
 171         ppp_generic_setup "$config" \
 172                 plugin pppoatm.so \
 173                 ${atmdev:+$atmdev.}${vpi:-8}.${vci:-35} \
 174                 ${encaps}
 175 }
 176
 177 proto_pppoa_teardown() {
 178         ppp_generic_teardown "$@"
 179 }
 180
 181 proto_pptp_init_config() {
 182         ppp_generic_init_config
 183         proto_config_add_string "server"
 184         proto_config_add_string "interface"
 185         available=1
 186         no_device=1
 187 }
 188
 189 proto_pptp_setup() {
 190         local config="$1"
 191         local iface="$2"
 192
 193         local ip serv_addr server interface
 194         json_get_vars interface server
 195         [ -n "$server" ] && {
 196                 for ip in $(resolveip -t 5 "$server"); do
 197                         ( proto_add_host_dependency "$config" "$ip" $interface )
 198                         serv_addr=1
 199                 done
 200         }
 201         [ -n "$serv_addr" ] || {
 202                 echo "Could not resolve server address"
 203                 sleep 5
 204                 proto_setup_failed "$config"
 205                 exit 1
 206         }
 207
 208         local load
 209         for module in slhc ppp_generic ppp_async ppp_mppe ip_gre gre pptp; do
 210                 grep -q "^$module " /proc/modules && continue
 211                 /sbin/insmod $module 2>&- >&-
 212                 load=1
 213         done
 214         [ "$load" = "1" ] && sleep 1
 215
 216         ppp_generic_setup "$config" \
 217                 plugin pptp.so \
 218                 pptp_server $server \
 219                 file /etc/ppp/options.pptp
 220 }
 221
 222 proto_pptp_teardown() {
 223         ppp_generic_teardown "$@"
 224 }
 225
 226 [ -n "$INCLUDE_ONLY" ] || {
 227         add_protocol ppp
 228         [ -f /usr/lib/pppd/*/rp-pppoe.so ] && add_protocol pppoe
 229         [ -f /usr/lib/pppd/*/pppoatm.so ] && add_protocol pppoa
 230         [ -f /usr/lib/pppd/*/pptp.so ] && add_protocol pptp
 231 }
 232