on-configure-network

gehe zur Dokumentation dieser Datei

#!/bin/sh
#
# Konfiguriere uebliche Opennet-Interfaces sowie ein lokales Interface.
#
# Dieses Skript wird nur ein einziges Mal nach einem Upgrade oder der Erstinstallation ausgefuehrt:
#   http://wiki.openwrt.org/doc/uci#defaults
#
 
 
# shellcheck source=opennet/packages/on-core/files/usr/lib/opennet/on-helper.sh
. "${IPKG_INSTROOT:-}/usr/lib/opennet/on-helper.sh"
 
 
OPENWRT_DEFAULT_LOCAL_IP=192.168.1.1
 
 
configure_local_network() {
    local uci_prefix="network.$NETWORK_LOCAL"
    # wurde die Standard-IP bereits veraendert?
    [ "$(uci_get "${uci_prefix}.ipaddr")" !=  "$OPENWRT_DEFAULT_LOCAL_IP" ] && return 0
    uci set "${uci_prefix}.ipaddr=$(get_on_core_default lan_ipaddr)"
    uci set "${uci_prefix}.netmask=$(get_on_core_default lan_netmask)"
}
 
 
configure_opennet_zone() {
    local uci_prefix
    # Forwarding (die letzte Aktion dieses Ablaufs) existiert? Keine Aenderungen ...
    [ -n "$(find_first_uci_section "firewall" "forwarding" "src=$ZONE_MESH" "dest=$ZONE_MESH")" ] && return 0
    uci_prefix=$(find_first_uci_section "firewall" "zone" "name=$ZONE_MESH")
    # Zone anlegen, falls leer
    [ -z "$uci_prefix" ] && uci_prefix=firewall.$(uci add firewall zone)
    uci set "$uci_prefix=zone"
    uci set "$uci_prefix.name=$ZONE_MESH"
    # Opennet-APs bieten ueblicherweise keine privaten Dienste an
    uci set "$uci_prefix.input=ACCEPT"
    # ausgehende Pakete sind OK
    uci set "$uci_prefix.output=ACCEPT"
    # Verkehr aus dem opennet-Netz darf nicht in lokale oder tunnel-Netze
    uci set "$uci_prefix.forward=REJECT"
    # via "masq_src" ersetzen wir die ehemalige "/etc/firewall.opennet" fuer Quell-basiertes Masquerading
    add_zone_forward "$ZONE_LOCAL" "$ZONE_MESH"
    # intra-Zone-Verkehr muss explizit erlaubt werden
    add_zone_forward "$ZONE_MESH" "$ZONE_MESH"
}
 
 
configure_olsr_radio() {
    trap 'error_trap configure_olsr_radio "$*"' EXIT
    local iface_index="$1"
    local iface_logical="$2"
    local iface_device="$3"
 
    local uci_wifi="wireless.@wifi-iface[$iface_index]"
    local uci_radio
    local radio_band
    local bssid
    uci_radio="wireless.$(uci_get "${uci_wifi}.device")"
    radio_band=$(uci_get "${uci_radio}.band")
    htmode=$(uci_get "${uci_radio}.htmode")
    bssid=$(get_on_core_default wifi_bssid)
 
    uci set "${uci_wifi}.network=$iface_logical"
    uci set "${uci_wifi}.device=$iface_device"
 
    uci set "wireless.radio${iface_index}.country=$(get_on_core_default wifi_country)"
    uci_delete "wireless.radio${iface_index}.disabled"
 
    # typ-spezifische Attribute
    if echo "$radio_band" | grep -q "5g"; then
        # 5 GHz: kein Mesh-Modus verfuegbar
        uci set "${uci_wifi}.ssid=$(get_on_core_default wifi_ssid_5ghz)"
        uci set "${uci_wifi}.mode=$(get_on_core_default wifi_mode_5ghz)"
        # Use one (random) indoor channel and multiple outdoor channels. 
        # Indoor channel: as fallback otherwise wireless scans fail (ap + DFS channel -> no scan)
        # Outdoor channels: remove TDWR channels + bandwidth
        indoor_channel=$(( 36 + 4 * $(get_random 4) ))
        uci set "${uci_radio}.channel=$indoor_channel"
        uci set "${uci_radio}.chanlist=$indoor_channel $(get_on_core_default wifi_outdoor_chanlist_5ghz)"
        # Fix 11ac default bandwidth
        if [ "$htmode" = "VHT80" ]; then
            uci set "${uci_radio}.htmode=VHT20"
        fi
        uci set "${uci_wifi}.isolate=1"
        # wir wollen einfache Interface Namen haben (wlan0,wlan1) und keine kryptischen Namen (phy-ap0,phy-sta0,...)
        uci set "${uci_wifi}.ifname=wlan${iface_index}"
    else
        # 2,4 GHz: Ad-hoc-Modus
        uci set "${uci_wifi}.ssid=$(get_on_core_default wifi_ssid)"
        uci set "${uci_wifi}.mode=$(get_on_core_default wifi_mode)"
        [ -n "$bssid" ] && uci set "${uci_wifi}.bssid=$bssid"
        uci set "${uci_radio}.channel=$(get_on_core_default wifi_channel)"
        # wir wollen einfache Interface Namen haben (wlan0,wlan1) und keine kryptischen Namen (phy-ap0,phy-sta0,...)
        uci set "${uci_wifi}.ifname=wlan${iface_index}"
    fi
    return
}
 
 
configure_olsr_single_interface() {
    trap 'error_trap configure_olsr_single_interface "$*"' EXIT
    local iface_logical="$1"
    local iface_addr="$2"
    local iface_netmask="$3"
    local iface_device="$4"
 
    # configure on_wifi
    uci set "network.${iface_logical}=interface"
    uci set "network.${iface_logical}.proto=static"
    uci set "network.${iface_logical}.netmask=$iface_netmask"
    uci set "network.${iface_logical}.defaultroute=0"
    uci set "network.${iface_logical}.peerdns=0"
    uci set "network.${iface_logical}.ipaddr=$iface_addr"
 
    # disable dhcp on on_wifi
    uci set "dhcp.${iface_logical}=dhcp"
    uci set "dhcp.${iface_logical}.interface=${iface_logical}"
    uci set "dhcp.${iface_logical}.dynamicdhcp=0"
    uci set "dhcp.${iface_logical}.ignore=1"
}
 
 
configure_olsr_interfaces() {
    trap 'error_trap configure_olsr_interfaces "$*"' EXIT
 
    # diese Aktion ist bereits abgeschlossen
    uci -q show "network" | grep -q '^network\.on_eth_0\.' && return 0
 
    local on_id
    local on_ipschema
    local on_netmask
    on_id=$(uci_get on-core.settings.on_id "$(get_on_core_default on_id_preset)")
    on_ipschema=$(get_on_core_default on_ipschema)
    on_netmask=$(get_on_core_default on_netmask)
    local on_ipaddr
    local iface_phys
    local iface_logical
 
    # Erstelle wifi config in uci, falls noch keine vorhanden ist
    /sbin/wifi config
 
    local iface_index=0
    while [ -n "$(uci_get "wireless.@wifi-iface[${iface_index}]")" ]; do
        on_ipaddr=$(get_on_ip "$on_id" "$on_ipschema" "$iface_index")
        iface_wifi_device=$(uci_get "wireless.@wifi-iface[${iface_index}].device")
        iface_logical=on_wifi_$iface_index
 
        configure_olsr_single_interface "$iface_logical" "$on_ipaddr" "$on_netmask" "$iface_wifi_device"
        configure_olsr_radio "$iface_index" "$iface_logical" "$iface_wifi_device"
 
        add_interface_to_zone "$ZONE_MESH" "$iface_logical"
 
        iface_index=$((iface_index + 1))
    done
 
    for iface_logical in "on_eth_0" "on_eth_1"; do
        on_ipaddr=$(get_on_ip "$on_id" "$on_ipschema" "$iface_index")
        iface_phys=none
        configure_olsr_single_interface "$iface_logical" "$on_ipaddr" "$on_netmask" "$iface_phys"
        add_interface_to_zone "$ZONE_MESH" "$iface_logical"
        iface_index=$((iface_index + 1))
    done
}
 
 
# jede Funktion sollte selbst pruefen, ob ihre Aktion bereits abgeschlossen ist
configure_local_network
configure_opennet_zone
configure_olsr_interfaces
 
apply_changes network wireless dhcp firewall