1 files changed, 92 insertions, 0 deletions
diff --git a/tnet/templates/bird-tnet.conf.j2 b/tnet/templates/bird-tnet.conf.j2
new file mode 100644
index 0000000..1185014
--- /dev/null
+++ b/tnet/templates/bird-tnet.conf.j2
@@ -0,0 +1,92 @@
+# Set to true if this peer is directly connected to a dn42 peer
+define is_dn42_peer = true;
+# If we are connected directly to dn42, we don't want the dn42 routes from others
+define import_dn42 = !is_dn42_peer;
+define export_dn42 = is_dn42_peer;
+
+template bgp tnet_tpl {
+  local    as 4242423538;
+  neighbor internal;
+
+  direct;
+
+  ipv6 {
+    next hop self;
+    import filter {
+      if is_tnet() then {
+        accept proto, ": (tnet) import accept, net=", net, ", from=", from, ", gw=", gw;
+      } else if import_dn42 && dn42_is_valid_network() then {
+        accept proto, ": (dn42) import accept, net=", net, ", from=", from, ", gw=", gw;
+      } else {
+        reject proto, ": import reject, reason=not tnet";
+      }
+    };
+    # newer bird's only
+    # import keep filtered;
+    export filter {
+      if is_tnet() then {
+        accept proto, ": (tnet) export accept, net=", net, ", from=", from, ", gw=", gw;
+      } else if export_dn42 && dn42_is_valid_network() then {
+        accept proto, ": (dn42) import accept, net=", net, ", from=", from, ", gw=", gw;
+      } else {
+        reject proto, ": export reject, reason=not tnet";
+      }
+    };
+  };
+}
+{% for p in tnet_bird_peers|default([])|sort %}
+{% set peer = tnet_bird_peers[p] %}
+{% set policy = peer.policy | default("tnet") %}
+
+{% if policy == "tnet" %}
+protocol bgp tnet_{{ p }} from tnet_tpl {
+  neighbor {{ hostvars[p].tnet_wg[inventory_hostname].address }};
+{% if peer.interface is defined %}
+  interface "{{ peer.interface }}";
+{% else %}
+  interface "tnet-{{ p }}";
+{% endif %}
+{% if inventory_hostname < p %}
+{% set password_var = inventory_hostname + "-" + p %}
+{% else %}
+{% set password_var = p + "-" + inventory_hostname %}
+{% endif %}
+  password "{{ "{{ bgp_password['" + password_var + "'] }}" }}";
+{% if peer.rr_client|default(False) %}
+
+  rr client;
+{% endif %}
+}
+{% elif policy == "dn42" %}
+protocol bgp {{ p }} {
+  local    as 4242423538;
+  neighbor {{ peer.address }};
+  neighbor as {{ peer.as }};
+{% if peer.interface is defined %}
+  interface "{{ peer.interface }}";
+{% endif %}
+
+  ipv6 {
+    import filter {
+      if dn42_is_valid_network() && (net !~ tnet) then {
+        # Check when unknown or invalid according to ROA
+        if (roa_check(dn42_roa, net, bgp_path.last) = ROA_VALID) then {
+          accept;
+        } else {
+          reject proto, "[dn42] ROA check failed for ", net, " ASN ", bgp_path.last;
+        }
+      } else {
+        reject proto, "[dn42] invalid dn42 network ", net, " ASN ", bgp_path.last;
+      }
+    };
+    export filter {
+      if net ~ tnet then {
+        accept proto, "[dn42] accepting export tnet: ", net;
+      } else {
+        reject proto, "[dn42] rejecting export: ", net;
+      }
+    };
+  };
+}
+{% endif %}
+{% endfor %}