tnet: Using templates instead of files

2 files changed, 136 insertions, 0 deletions

diff --git a/tnet/templates/knot/bird-tnet-pre.conf b/tnet/templates/knot/bird-tnet-pre.conf
new file mode 100644
index 0000000..d60e8df
--- /dev/null
+++ b/tnet/templates/knot/bird-tnet-pre.conf
@@ -0,0 +1,20 @@
+define tnet = fdb1:4242:3538:2000::/52;
+
+function is_tnet() -> bool
+{
+  return net ~ tnet;
+}
+
+roa6 table dn42_roa;
+
+protocol static {
+    roa6 { table dn42_roa; };
+    include "/etc/bird/dn42_roa_bird2_6.conf";
+};
+
+function dn42_is_valid_network() -> bool
+{
+  return net ~ [
+    fd00::/8{44,64} # ULA address space as per RFC 4193
+  ];
+}
diff --git a/tnet/templates/knot/bird-tnet.conf b/tnet/templates/knot/bird-tnet.conf
new file mode 100644
index 0000000..f21be09
--- /dev/null
+++ b/tnet/templates/knot/bird-tnet.conf
@@ -0,0 +1,116 @@
+# 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;
+
+  password "trygvis";
+
+  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";
+      }
+    };
+  };
+}
+
+protocol bgp tnet_conflatorio from tnet_tpl {
+  neighbor fe80:47fc:660:b91f:1063:a6ae:46bb:7588;
+  interface "tnet-confltrio";
+
+  rr client;
+}
+
+protocol bgp tnet_coregonus from tnet_tpl {
+  neighbor fe80:ba82:77f0:f96d:7a85:a7fa:ef6f:37d3;
+  interface "tnet-coregonus";
+
+  rr client;
+}
+
+protocol bgp tnet_hash from tnet_tpl {
+  neighbor fe80:3b20:4cb0:5315:22a:c7de:a45b:8a7d;
+  interface "tnet-hash";
+
+  rr client;
+}
+
+protocol bgp tnet_kv24ix from tnet_tpl {
+  neighbor fe80:fef1:078a:5b64:efd3:ae7b:d286:d7cf;
+  interface "tnet-kv24ix";
+
+  rr client;
+}
+
+protocol bgp tnet_lhn2pi from tnet_tpl {
+  neighbor fe80:d83a:350b:2162:6eda:1cc1:9cd7:80e9;
+  interface "tnet-lhn2pi";
+
+  rr client;
+}
+
+protocol bgp tnet_node1 from tnet_tpl {
+  neighbor fe80:58eb:3930:1815:2a6d:8918:70c9:96f3;
+  interface "tnet-node1";
+
+  rr client;
+}
+
+protocol bgp tnet_node2 from tnet_tpl {
+  neighbor fe80:9dd8:abac:cf05:aea3:dc03:4c74:32db;
+  interface "tnet-node2";
+
+  rr client;
+}
+
+protocol bgp routedbits_lon1 {
+  local    as 4242423538;
+  neighbor fe80::207;
+  neighbor as 4242420207;
+  interface "tnet-rtdbts_l1";
+
+  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;
+      }
+    };
+  };
+}