log syslog all;
router id 82.165.162.239;

# interne BIRD Routing-Tabelle
table ffrl;

# freifunk ip ranges in general
function is_freifunk() {
    return net ~ [
        fc00::/7{48,64}, # unique local addresses
        2001:bf7::/32+,
        2a03:2260:3009::/48+
    ];
}

function is_ffrl_export() {
    return net ~ [
        2a03:2260:3009:100::/56,
        2a03:2260:3009::/56,
        2a03:2260:3009:f00::/56
    ];
}

function is_default() {
    return net ~ [
        ::/0
    ];
}

# BGP Import Filter für Rheinland
filter ebgp_ffrl_import_filter {
    if is_default() then accept;
    reject;
}

# BGP Export Filter für Rheinland
filter ebgp_ffrl_export_filter {
    if is_ffrl_export() then accept;
    reject;
}

# Dies lädt die Devices in die Tabelle. Die meisten anderen Protokolle brauchen das.
protocol device {
    table ffrl;
    vrf "vrf_freifunk";
    scan time 30;
    primary 2a03:2260::/48;
}

# Statische Routen für unsere Netze
protocol static local_routes {
    table ffrl;
    vrf "vrf_freifunk";
    # FFRL-assigned space: Gateway subspaces
    # we are all in the same layer 2 segment, so we can take all this
    route 2a03:2260:3009:100::/56 via "saarBR";
    route 2a03:2260:3009:200::/56 via "saarBR";
    route 2a03:2260:3009:300::/56 via "saarBR";
    route 2a03:2260:3009:400::/56 via "saarBR";
    # FFRL-assigned space: subet for admin & user services
    route 2a03:2260:3009::/56 via "saarBR";
    route 2a03:2260:3009:f00::/56 via "saarBR";
    # FFRL-assigned space: blackhole the rest
    route 2a03:2260:3009::/48 unreachable;
    # Intranet space
    route fd4e:f2d7:88d2:ffff::/64 via "saarBR";
}

# Wir exportieren über Rheinland gelernte Routen in die Kernel Table 1042 (freifunk)
protocol kernel kernel_ffrl {
    scan time 30;
    import none;
    export filter {
        # Advise the kernel about which address to use as the source
        krt_prefsrc = 2a03:2260:3009::2;
        accept;
    };
    device routes;
    table ffrl;
    vrf "vrf_freifunk";
    kernel table 1042;
};



# BGP Template für Rheinland Peerings
template bgp ffrl_uplink {
    table ffrl;
    vrf "vrf_freifunk";
    local as 64899;
    import keep filtered;
    import filter ebgp_ffrl_import_filter;
    export filter ebgp_ffrl_export_filter;
    next hop self;
    direct;
};

# P E E R I N G S

protocol bgp ffrl_a_ak from ffrl_uplink {
    source address 2a03:2260:0:194::2;
    neighbor 2a03:2260:0:194::1 as 201701;

};

protocol bgp ffrl_b_ak from ffrl_uplink {
    source address 2a03:2260:0:195::2;
    neighbor 2a03:2260:0:195::1 as 201701;

};

protocol bgp ffrl_a_ix from ffrl_uplink {
    source address 2a03:2260:0:196::2;
    neighbor 2a03:2260:0:196::1 as 201701;

};

protocol bgp ffrl_b_ix from ffrl_uplink {
    source address 2a03:2260:0:197::2;
    neighbor 2a03:2260:0:197::1 as 201701;

};

protocol bgp ffrl_a_fra from ffrl_uplink {
    source address 2a03:2260:0:1e9::2;
    neighbor 2a03:2260:0:1e9::1 as 201701;

};

protocol bgp ffrl_b_fra from ffrl_uplink {
    source address 2a03:2260:0:1ea::2;
    neighbor 2a03:2260:0:1ea::1 as 201701;

};