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