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_exitcode_tostring()
  12 {
  13         local errorcode=$1
  14         [ -n "$errorcode" ] || errorcode=5
  15
  16         case "$errorcode" in
  17                 0) echo "OK" ;;
  18                 1) echo "FATAL_ERROR" ;;
  19                 2) echo "OPTION_ERROR" ;;
  20                 3) echo "NOT_ROOT" ;;
  21                 4) echo "NO_KERNEL_SUPPORT" ;;
  22                 5) echo "USER_REQUEST" ;;
  23                 6) echo "LOCK_FAILED" ;;
  24                 7) echo "OPEN_FAILED" ;;
  25                 8) echo "CONNECT_FAILED" ;;
  26                 9) echo "PTYCMD_FAILED" ;;
  27                 10) echo "NEGOTIATION_FAILED" ;;
  28                 11) echo "PEER_AUTH_FAILED" ;;
  29                 12) echo "IDLE_TIMEOUT" ;;
  30                 13) echo "CONNECT_TIME" ;;
  31                 14) echo "CALLBACK" ;;
  32                 15) echo "PEER_DEAD" ;;
  33                 16) echo "HANGUP" ;;
  34                 17) echo "LOOPBACK" ;;
  35                 18) echo "INIT_FAILED" ;;
  36                 19) echo "AUTH_TOPEER_FAILED" ;;
  37                 20) echo "TRAFFIC_LIMIT" ;;
  38                 21) echo "CNID_AUTH_FAILED";;
  39                 *) echo "UNKNOWN_ERROR" ;;
  40         esac
  41 }
  42
  43 ppp_generic_init_config() {
  44         proto_config_add_string username
  45         proto_config_add_string password
  46         proto_config_add_string keepalive
  47         proto_config_add_boolean keepalive_adaptive
  48         proto_config_add_int demand
  49         proto_config_add_string pppd_options
  50         proto_config_add_string 'connect:file'
  51         proto_config_add_string 'disconnect:file'
  52         proto_config_add_string ipv6
  53         proto_config_add_boolean authfail
  54         proto_config_add_int mtu
  55         proto_config_add_string pppname
  56 }
  57
  58 ppp_generic_setup() {
  59         local config="$1"; shift
  60
  61         json_get_vars ipv6 demand keepalive keepalive_adaptive username password pppd_options pppname
  62         if [ "$ipv6" = 0 ]; then
  63                 ipv6=""
  64         elif [ -z "$ipv6" -o "$ipv6" = auto ]; then
  65                 ipv6=1
  66                 proto_export "AUTOIPV6=1"
  67         fi
  68
  69         if [ "${demand:-0}" -gt 0 ]; then
  70                 demand="precompiled-active-filter /etc/ppp/filter demand idle $demand"
  71         else
  72                 demand=""
  73         fi
  74         [ -n "$mtu" ] || json_get_var mtu mtu
  75         [ -n "$pppname" ] || pppname="${proto:-ppp}-$config"
  76
  77         local lcp_failure="${keepalive%%[, ]*}"
  78         local lcp_interval="${keepalive##*[, ]}"
  79         local lcp_adaptive="lcp-echo-adaptive"
  80         [ "${lcp_failure:-0}" -lt 1 ] && lcp_failure=""
  81         [ "$lcp_interval" != "$keepalive" ] || lcp_interval=5
  82         [ "${keepalive_adaptive:-1}" -lt 1 ] && lcp_adaptive=""
  83         [ -n "$connect" ] || json_get_var connect connect
  84         [ -n "$disconnect" ] || json_get_var disconnect disconnect
  85
  86         proto_run_command "$config" /usr/sbin/pppd \
  87                 nodetach ipparam "$config" \
  88                 ifname "$pppname" \
  89                 ${lcp_failure:+lcp-echo-interval $lcp_interval lcp-echo-failure $lcp_failure $lcp_adaptive} \
  90                 ${ipv6:++ipv6} \
  91                 nodefaultroute \
  92                 usepeerdns \
  93                 $demand maxfail 1 \
  94                 ${username:+user "$username" password "$password"} \
  95                 ${connect:+connect "$connect"} \
  96                 ${disconnect:+disconnect "$disconnect"} \
  97                 ip-up-script /lib/netifd/ppp-up \
  98                 ipv6-up-script /lib/netifd/ppp-up \
  99                 ip-down-script /lib/netifd/ppp-down \
 100                 ipv6-down-script /lib/netifd/ppp-down \
 101                 ${mtu:+mtu $mtu mru $mtu} \
 102                 "$@" $pppd_options
 103 }
 104
 105 ppp_generic_teardown() {
 106         local interface="$1"
 107         local errorstring=$(ppp_exitcode_tostring $ERROR)
 108
 109         case "$ERROR" in
 110                 0)
 111                 ;;
 112                 2)
 113                         proto_notify_error "$interface" "$errorstring"
 114                         proto_block_restart "$interface"
 115                 ;;
 116                 11|19)
 117                         json_get_var authfail authfail
 118                         proto_notify_error "$interface" "$errorstring"
 119                         if [ "${authfail:-0}" -gt 0 ]; then
 120                                 proto_block_restart "$interface"
 121                         fi
 122                 ;;
 123                 *)
 124                         proto_notify_error "$interface" "$errorstring"
 125                 ;;
 126         esac
 127
 128         proto_kill_command "$interface"
 129 }
 130
 131 # PPP on serial device
 132
 133 proto_ppp_init_config() {
 134         proto_config_add_string "device"
 135         ppp_generic_init_config
 136         no_device=1
 137         available=1
 138         lasterror=1
 139 }
 140
 141 proto_ppp_setup() {
 142         local config="$1"
 143
 144         json_get_var device device
 145         ppp_generic_setup "$config" "$device"
 146 }
 147
 148 proto_ppp_teardown() {
 149         ppp_generic_teardown "$@"
 150 }
 151
 152 proto_pppoe_init_config() {
 153         ppp_generic_init_config
 154         proto_config_add_string "ac"
 155         proto_config_add_string "service"
 156         proto_config_add_string "host_uniq"
 157         lasterror=1
 158 }
 159
 160 proto_pppoe_setup() {
 161         local config="$1"
 162         local iface="$2"
 163
 164         for module in slhc ppp_generic pppox pppoe; do
 165                 /sbin/insmod $module 2>&- >&-
 166         done
 167
 168         json_get_var mtu mtu
 169         mtu="${mtu:-1492}"
 170
 171         json_get_var ac ac
 172         json_get_var service service
 173         json_get_var host_uniq host_uniq
 174
 175         ppp_generic_setup "$config" \
 176                 plugin rp-pppoe.so \
 177                 ${ac:+rp_pppoe_ac "$ac"} \
 178                 ${service:+rp_pppoe_service "$service"} \
 179                 ${host_uniq:+host-uniq "$host_uniq"} \
 180                 "nic-$iface"
 181 }
 182
 183 proto_pppoe_teardown() {
 184         ppp_generic_teardown "$@"
 185 }
 186
 187 proto_pppoa_init_config() {
 188         ppp_generic_init_config
 189         proto_config_add_int "atmdev"
 190         proto_config_add_int "vci"
 191         proto_config_add_int "vpi"
 192         proto_config_add_string "encaps"
 193         no_device=1
 194         available=1
 195         lasterror=1
 196 }
 197
 198 proto_pppoa_setup() {
 199         local config="$1"
 200         local iface="$2"
 201
 202         for module in slhc ppp_generic pppox pppoatm; do
 203                 /sbin/insmod $module 2>&- >&-
 204         done
 205
 206         json_get_vars atmdev vci vpi encaps
 207
 208         case "$encaps" in
 209                 1|vc) encaps="vc-encaps" ;;
 210                 *) encaps="llc-encaps" ;;
 211         esac
 212
 213         ppp_generic_setup "$config" \
 214                 plugin pppoatm.so \
 215                 ${atmdev:+$atmdev.}${vpi:-8}.${vci:-35} \
 216                 ${encaps}
 217 }
 218
 219 proto_pppoa_teardown() {
 220         ppp_generic_teardown "$@"
 221 }
 222
 223 proto_pptp_init_config() {
 224         ppp_generic_init_config
 225         proto_config_add_string "server"
 226         proto_config_add_string "interface"
 227         available=1
 228         no_device=1
 229         lasterror=1
 230 }
 231
 232 proto_pptp_setup() {
 233         local config="$1"
 234         local iface="$2"
 235
 236         local ip serv_addr server interface
 237         json_get_vars interface server
 238         [ -n "$server" ] && {
 239                 for ip in $(resolveip -t 5 "$server"); do
 240                         ( proto_add_host_dependency "$config" "$ip" $interface )
 241                         serv_addr=1
 242                 done
 243         }
 244         [ -n "$serv_addr" ] || {
 245                 echo "Could not resolve server address"
 246                 sleep 5
 247                 proto_setup_failed "$config"
 248                 exit 1
 249         }
 250
 251         local load
 252         for module in slhc ppp_generic ppp_async ppp_mppe ip_gre gre pptp; do
 253                 grep -q "^$module " /proc/modules && continue
 254                 /sbin/insmod $module 2>&- >&-
 255                 load=1
 256         done
 257         [ "$load" = "1" ] && sleep 1
 258
 259         ppp_generic_setup "$config" \
 260                 plugin pptp.so \
 261                 pptp_server $server \
 262                 file /etc/ppp/options.pptp
 263 }
 264
 265 proto_pptp_teardown() {
 266         ppp_generic_teardown "$@"
 267 }
 268
 269 [ -n "$INCLUDE_ONLY" ] || {
 270         add_protocol ppp
 271         [ -f /usr/lib/pppd/*/rp-pppoe.so ] && add_protocol pppoe
 272         [ -f /usr/lib/pppd/*/pppoatm.so ] && add_protocol pppoa
 273         [ -f /usr/lib/pppd/*/pptp.so ] && add_protocol pptp
 274 }
 275