Add BIRD2 language

.gitmodules

@@ -19,6 +19,9 @@
 [submodule "vendor/grammars/AutoHotkey"]
 	path = vendor/grammars/AutoHotkey
 	url = https://github.com/ahkscript/SublimeAutoHotkey
+[submodule "vendor/grammars/BIRD-tm-language-grammar"]
+	path = vendor/grammars/BIRD-tm-language-grammar
+	url = https://github.com/bird-chinese-community/BIRD-tm-language-grammar.git
 [submodule "vendor/grammars/CUE-Sheet_sublime"]
 	path = vendor/grammars/CUE-Sheet_sublime
 	url = https://github.com/relikd/CUE-Sheet_sublime

grammars.yml

@@ -13,6 +13,8 @@ vendor/grammars/AtomLanguageVelocity:
 - source.velocity.html
 vendor/grammars/AutoHotkey:
 - source.ahk
+vendor/grammars/BIRD-tm-language-grammar:
+- source.bird2
 vendor/grammars/CUE-Sheet_sublime:
 - source.cuesheet
 vendor/grammars/Clue-for-VSCode:

lib/linguist/languages.yml

@@ -634,6 +634,26 @@ Bikeshed:
   codemirror_mode: htmlmixed
   codemirror_mime_type: text/html
   language_id: 1055528081
+BIRD2:
+  type: data
+  color: "#b6d7e4"
+  extensions:
+  - ".bird"
+  - ".bird2"
+  - ".bird3"
+  - ".bird.conf"
+  filenames:
+  - BIRD.conf
+  - BIRD2.conf
+  - BIRD3.conf
+  - bird.conf
+  - bird2.conf
+  - bird3.conf
+  aliases:
+  - bird
+  - bird3
+  tm_scope: source.bird2
+  language_id: 584191811
 Bison:
   type: programming
   color: "#6A463F"

samples/BIRD2/basic.conf

@@ -0,0 +1,107 @@
+# Basic BIRD2 configuration file
+router id 192.168.1.1;
+log    syslog all;
+debug  protocols all;
+
+# Community list definition
+define LOCAL_PREF_HIGH = [(65001,100), (65001,200)];
+define AS_PATH_FILTER = [= 65001 65002 * =];
+define MY_ASN = 65001;
+define TEST_STR = "test";
+define PREFIX_LIST = [
+  10.0.0.0/8+,
+  172.16.0.0/12+,
+  192.168.0.0/16+,
+  2001::/32{33,128}
+];
+
+# Define a protocol
+protocol static static_routes {
+  ipv4 {
+    table  master4;
+    export all;
+    import none;
+  }
+
+  route 10.0.0.0/8 via 192.168.1.254;
+  route 172.16.0.0/12 blackhole;
+}
+
+# BGP protocol with AS path filtering
+protocol bgp peer1 {
+  local    as 65001;
+  neighbor 192.168.1.2 as 65002;
+
+  ipv4 {
+    export filter {
+      if     bgp_path ~ [= * 65003 * =] then reject;
+      accept;
+    }
+
+    import all;
+  }
+}
+
+# OSPF protocol
+protocol ospf v2 ospf1 {
+  ipv4 {
+    export all;
+  }
+
+  area 0 {
+    interface "eth0" {
+      hello 10;
+    }
+  }
+}
+
+protocol bgp Upstream {
+  local    as 65001;
+  neighbor 203.0.113.1 as 174;
+
+  ipv4 {
+    import filter {
+      if     bgp_path ~ AS_PATH_FILTER then reject;
+      accept;
+    }
+
+    export filter export_filter;
+  }
+}
+
+protocol kernel Kernel {
+  ipv4;
+  scan time 10;
+}
+
+# Filter and function definitions
+function is_private_network() -> bool {
+  if     net ~ [ 10.0.0.0/8+, 172.16.0.0/12+, 192.168.0.0/16+ ] then return true;
+  return false;
+}
+
+filter export_filter {
+  if is_private_network() then reject;
+  if bgp_path.len > 10 then reject;
+
+  if bgp_community ~ [(65001,100)] then {
+    bgp_local_pref = 200;
+    accept;
+  }
+
+  accept;
+}
+
+protocol bgp uplink {
+  local    as 65001;
+  neighbor 203.0.113.1 as 174;
+
+  ipv4 {
+    import filter {
+      if     bgp_path ~ AS_PATH_FILTER then reject;
+      accept;
+    }
+
+    export filter export_filter;
+  }
+}

samples/BIRD2/bogon.conf

@@ -0,0 +1,97 @@
+define BOGON_ASNS = [
+  0,                      # RFC 7607
+  23456,                  # RFC 4893 AS_TRANS
+  64496..64511,           # RFC 5398 and documentation/example ASNs
+  64512..65534,           # RFC 6996 Private ASNs
+  65535,                  # RFC 7300 Last 16 bit ASN
+  65536..65551,           # RFC 5398 and documentation/example ASNs
+  65552..131071,          # RFC IANA reserved ASNs
+  4200000000..4294967294, # Private ASNs
+  4294967295              # RFC 7300 Last 32 bit ASN
+];
+define TIER_1_ASNS = [
+  174, # Cogent
+  701, # Verizon
+  1299, # Telia
+  2914, # NTT
+  3257, # GTT
+  3356, # Level3 (CenturyLink), Lumen
+  3320, # DTAG
+  3491, # PCCW Global
+  5511, # Orange
+  6453, # Tata
+  6461, # Zayo
+  6762, # Sparkle
+  6830, # Liberty Global
+  6939, # Hurricane Electric (IPv6 only)
+  7018, # AT&T
+  7922, # Comcast
+  12956 # Telefonica
+];
+define BOGON_PREFIXES_V4 = [
+  0.0.0.0/8+,             # RFC 1122 'this' network
+  10.0.0.0/8+,            # RFC 1918 private space
+  100.64.0.0/10+,         # RFC 6598 Carrier grade nat space
+  127.0.0.0/8+,           # RFC 1122 localhost
+  169.254.0.0/16+,        # RFC 3927 link local
+  172.16.0.0/12+,         # RFC 1918 private space
+  192.0.2.0/24,           # RFC 5737 TEST-NET-1
+  192.88.99.0/24,         # RFC 7526 deprecated 6to4 relay anycast.
+  192.168.0.0/16+,        # RFC 1918 private space
+  198.18.0.0/15+,         # RFC 2544 benchmarking
+  198.51.100.0/24,        # RFC 5737 TEST-NET-2
+  203.0.113.0/24,         # RFC 5737 TEST-NET-3
+  224.0.0.0/4+,           # multicast
+  240.0.0.0/4+            # reserved
+];
+define BOGON_PREFIXES_V6 = [
+  ::/8+,                  # RFC 4291 IPv4-compatible, loopback, et al
+  0064:ff9b::/96+,        # RFC 6052 IPv4/IPv6 Translation
+  0064:ff9b:1::/48+,      # RFC 8215 Local-Use IPv4/IPv6 Translation
+  0100::/64+,             # RFC 6666 Discard-Only
+  2001::/32{33,12},
+  2001:2::/48+,           # RFC 5180 BMWG
+  2001:10::/28+,          # RFC 4843 ORCHID
+  2001:db8::/32+,         # RFC 3849 documentation
+  2002::/16+,             # RFC 7526 deprecated 6to4 relay anycast.
+  3ffe::/16+,
+  5f00::/8+,              # RFC 3701 old 6bone
+  fc00::/7+,              # RFC 4193 unique local unicast
+  fe80::/10+,             # RFC 4291 link local unicast
+  fec0::/10+,             # RFC 3879 old site local unicast
+  ff00::/8+               # RFC 4291 multicast
+];
+
+function is_bogon_prefix() -> bool {
+  case net.type {
+    NET_IP4: return net ~ BOGON_PREFIXES_V4;
+    NET_IP6: return net ~ BOGON_PREFIXES_V6;
+    else:    print "is_bogon_prefix: unexpected net.type ", net.type, " ", net;
+    return   false;
+  }
+}
+
+function net_len_too_long() -> bool {
+  case net.type {
+    NET_IP4: return net.len > 24;
+    NET_IP6: return net.len > 48;
+    else:    print "net_len_too_long: unexpected net.type ", net.type, " ", net;
+    return   false;
+  }
+}
+
+function is_bogon_asn() -> bool {
+  if     bgp_path ~ BOGON_ASNS then return true;
+  return false;
+}
+
+function is_no_tier1_asn() -> bool {
+  if     bgp_path ~ TIER_1_ASNS then return false;
+  return true;
+}
+
+function is_bogon() -> bool {
+  if net_len_too_long() then return true;
+  if is_bogon_prefix() then return true;
+  if source = RTS_BGP && is_bogon_asn() then return true;
+}

vendor/README.md

@@ -51,6 +51,7 @@ This is a list of grammars that Linguist selects to provide syntax highlighting
 - **Awk:** [github-linguist/awk-sublime](https://github.com/github-linguist/awk-sublime)
 - **B4X:** [serkonda7/vscode-vba](https://github.com/serkonda7/vscode-vba)
 - **BASIC:** [telnet23/language-basic](https://github.com/telnet23/language-basic)
+- **BIRD2:** [bird-chinese-community/BIRD-tm-language-grammar](https://github.com/bird-chinese-community/BIRD-tm-language-grammar)
 - **BQN:** [razetime/bqn-vscode](https://github.com/razetime/bqn-vscode)
 - **Ballerina:** [ballerina-platform/ballerina-grammar](https://github.com/ballerina-platform/ballerina-grammar)
 - **Batchfile:** [mmims/language-batchfile](https://github.com/mmims/language-batchfile)