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78ff0cf2 MT |
1 | #!/usr/bin/python3 |
2 | ############################################################################### | |
3 | # # | |
4 | # libloc - A library to determine the location of someone on the Internet # | |
5 | # # | |
6 | # Copyright (C) 2020 IPFire Development Team <info@ipfire.org> # | |
7 | # # | |
8 | # This library is free software; you can redistribute it and/or # | |
9 | # modify it under the terms of the GNU Lesser General Public # | |
10 | # License as published by the Free Software Foundation; either # | |
11 | # version 2.1 of the License, or (at your option) any later version. # | |
12 | # # | |
13 | # This library is distributed in the hope that it will be useful, # | |
14 | # but WITHOUT ANY WARRANTY; without even the implied warranty of # | |
15 | # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU # | |
16 | # Lesser General Public License for more details. # | |
17 | # # | |
18 | ############################################################################### | |
19 | ||
20 | import argparse | |
6ffd06b5 | 21 | import ipaddress |
78ff0cf2 | 22 | import logging |
6ffd06b5 MT |
23 | import math |
24 | import re | |
22d8d199 | 25 | import socket |
78ff0cf2 | 26 | import sys |
83d61c46 | 27 | import telnetlib |
78ff0cf2 MT |
28 | |
29 | # Load our location module | |
30 | import location | |
29c6fa22 | 31 | import location.database |
3192b66c | 32 | import location.importer |
78ff0cf2 MT |
33 | from location.i18n import _ |
34 | ||
35 | # Initialise logging | |
36 | log = logging.getLogger("location.importer") | |
37 | log.propagate = 1 | |
38 | ||
39 | class CLI(object): | |
40 | def parse_cli(self): | |
41 | parser = argparse.ArgumentParser( | |
42 | description=_("Location Importer Command Line Interface"), | |
43 | ) | |
6ffd06b5 | 44 | subparsers = parser.add_subparsers() |
78ff0cf2 MT |
45 | |
46 | # Global configuration flags | |
47 | parser.add_argument("--debug", action="store_true", | |
48 | help=_("Enable debug output")) | |
bc1f5f53 MT |
49 | parser.add_argument("--quiet", action="store_true", |
50 | help=_("Enable quiet mode")) | |
78ff0cf2 MT |
51 | |
52 | # version | |
53 | parser.add_argument("--version", action="version", | |
54 | version="%(prog)s @VERSION@") | |
55 | ||
29c6fa22 MT |
56 | # Database |
57 | parser.add_argument("--database-host", required=True, | |
58 | help=_("Database Hostname"), metavar=_("HOST")) | |
59 | parser.add_argument("--database-name", required=True, | |
60 | help=_("Database Name"), metavar=_("NAME")) | |
61 | parser.add_argument("--database-username", required=True, | |
62 | help=_("Database Username"), metavar=_("USERNAME")) | |
63 | parser.add_argument("--database-password", required=True, | |
64 | help=_("Database Password"), metavar=_("PASSWORD")) | |
65 | ||
0983f3dd MT |
66 | # Write Database |
67 | write = subparsers.add_parser("write", help=_("Write database to file")) | |
68 | write.set_defaults(func=self.handle_write) | |
69 | write.add_argument("file", nargs=1, help=_("Database File")) | |
70 | write.add_argument("--signing-key", nargs="?", type=open, help=_("Signing Key")) | |
1164d876 | 71 | write.add_argument("--backup-signing-key", nargs="?", type=open, help=_("Backup Signing Key")) |
0983f3dd MT |
72 | write.add_argument("--vendor", nargs="?", help=_("Sets the vendor")) |
73 | write.add_argument("--description", nargs="?", help=_("Sets a description")) | |
74 | write.add_argument("--license", nargs="?", help=_("Sets the license")) | |
b904896a | 75 | write.add_argument("--version", type=int, help=_("Database Format Version")) |
0983f3dd | 76 | |
6ffd06b5 MT |
77 | # Update WHOIS |
78 | update_whois = subparsers.add_parser("update-whois", help=_("Update WHOIS Information")) | |
79 | update_whois.set_defaults(func=self.handle_update_whois) | |
80 | ||
83d61c46 MT |
81 | # Update announcements |
82 | update_announcements = subparsers.add_parser("update-announcements", | |
83 | help=_("Update BGP Annoucements")) | |
84 | update_announcements.set_defaults(func=self.handle_update_announcements) | |
85 | update_announcements.add_argument("server", nargs=1, | |
86 | help=_("Route Server to connect to"), metavar=_("SERVER")) | |
87 | ||
d7fc3057 MT |
88 | # Update overrides |
89 | update_overrides = subparsers.add_parser("update-overrides", | |
90 | help=_("Update overrides"), | |
91 | ) | |
92 | update_overrides.add_argument( | |
93 | "files", nargs="+", help=_("Files to import"), | |
94 | ) | |
95 | update_overrides.set_defaults(func=self.handle_update_overrides) | |
96 | ||
8084b33a MT |
97 | # Import countries |
98 | import_countries = subparsers.add_parser("import-countries", | |
99 | help=_("Import countries"), | |
100 | ) | |
101 | import_countries.add_argument("file", nargs=1, type=argparse.FileType("r"), | |
102 | help=_("File to import")) | |
103 | import_countries.set_defaults(func=self.handle_import_countries) | |
104 | ||
78ff0cf2 MT |
105 | args = parser.parse_args() |
106 | ||
bc1f5f53 | 107 | # Configure logging |
78ff0cf2 | 108 | if args.debug: |
f9de5e61 | 109 | location.logger.set_level(logging.DEBUG) |
bc1f5f53 MT |
110 | elif args.quiet: |
111 | location.logger.set_level(logging.WARNING) | |
78ff0cf2 | 112 | |
6ffd06b5 MT |
113 | # Print usage if no action was given |
114 | if not "func" in args: | |
115 | parser.print_usage() | |
116 | sys.exit(2) | |
117 | ||
78ff0cf2 MT |
118 | return args |
119 | ||
120 | def run(self): | |
121 | # Parse command line arguments | |
122 | args = self.parse_cli() | |
123 | ||
29c6fa22 | 124 | # Initialise database |
6ffd06b5 | 125 | self.db = self._setup_database(args) |
29c6fa22 | 126 | |
78ff0cf2 | 127 | # Call function |
6ffd06b5 | 128 | ret = args.func(args) |
78ff0cf2 MT |
129 | |
130 | # Return with exit code | |
131 | if ret: | |
132 | sys.exit(ret) | |
133 | ||
134 | # Otherwise just exit | |
135 | sys.exit(0) | |
136 | ||
29c6fa22 MT |
137 | def _setup_database(self, ns): |
138 | """ | |
139 | Initialise the database | |
140 | """ | |
141 | # Connect to database | |
142 | db = location.database.Connection( | |
143 | host=ns.database_host, database=ns.database_name, | |
144 | user=ns.database_username, password=ns.database_password, | |
145 | ) | |
146 | ||
147 | with db.transaction(): | |
148 | db.execute(""" | |
83d61c46 MT |
149 | -- announcements |
150 | CREATE TABLE IF NOT EXISTS announcements(network inet, autnum bigint, | |
151 | first_seen_at timestamp without time zone DEFAULT CURRENT_TIMESTAMP, | |
152 | last_seen_at timestamp without time zone DEFAULT CURRENT_TIMESTAMP); | |
153 | CREATE UNIQUE INDEX IF NOT EXISTS announcements_networks ON announcements(network); | |
154 | CREATE INDEX IF NOT EXISTS announcements_family ON announcements(family(network)); | |
155 | ||
6ffd06b5 | 156 | -- autnums |
0983f3dd | 157 | CREATE TABLE IF NOT EXISTS autnums(number bigint, name text NOT NULL); |
6ffd06b5 MT |
158 | CREATE UNIQUE INDEX IF NOT EXISTS autnums_number ON autnums(number); |
159 | ||
8084b33a MT |
160 | -- countries |
161 | CREATE TABLE IF NOT EXISTS countries( | |
162 | country_code text NOT NULL, name text NOT NULL, continent_code text NOT NULL); | |
163 | CREATE UNIQUE INDEX IF NOT EXISTS countries_country_code ON countries(country_code); | |
164 | ||
429a43d1 | 165 | -- networks |
83d61c46 | 166 | CREATE TABLE IF NOT EXISTS networks(network inet, country text); |
429a43d1 | 167 | CREATE UNIQUE INDEX IF NOT EXISTS networks_network ON networks(network); |
83d61c46 | 168 | CREATE INDEX IF NOT EXISTS networks_search ON networks USING GIST(network inet_ops); |
d7fc3057 MT |
169 | |
170 | -- overrides | |
171 | CREATE TABLE IF NOT EXISTS autnum_overrides( | |
172 | number bigint NOT NULL, | |
173 | name text, | |
bd1aa6a1 | 174 | country text, |
b8e25b71 MT |
175 | is_anonymous_proxy boolean, |
176 | is_satellite_provider boolean, | |
177 | is_anycast boolean | |
d7fc3057 MT |
178 | ); |
179 | CREATE UNIQUE INDEX IF NOT EXISTS autnum_overrides_number | |
180 | ON autnum_overrides(number); | |
181 | ||
182 | CREATE TABLE IF NOT EXISTS network_overrides( | |
183 | network inet NOT NULL, | |
184 | country text, | |
b8e25b71 MT |
185 | is_anonymous_proxy boolean, |
186 | is_satellite_provider boolean, | |
187 | is_anycast boolean | |
d7fc3057 MT |
188 | ); |
189 | CREATE UNIQUE INDEX IF NOT EXISTS network_overrides_network | |
190 | ON network_overrides(network); | |
29c6fa22 MT |
191 | """) |
192 | ||
193 | return db | |
194 | ||
0983f3dd MT |
195 | def handle_write(self, ns): |
196 | """ | |
197 | Compiles a database in libloc format out of what is in the database | |
198 | """ | |
0983f3dd | 199 | # Allocate a writer |
1164d876 | 200 | writer = location.Writer(ns.signing_key, ns.backup_signing_key) |
0983f3dd MT |
201 | |
202 | # Set all metadata | |
203 | if ns.vendor: | |
204 | writer.vendor = ns.vendor | |
205 | ||
206 | if ns.description: | |
207 | writer.description = ns.description | |
208 | ||
209 | if ns.license: | |
210 | writer.license = ns.license | |
211 | ||
212 | # Add all Autonomous Systems | |
213 | log.info("Writing Autonomous Systems...") | |
214 | ||
215 | # Select all ASes with a name | |
6e97c44b MT |
216 | rows = self.db.query(""" |
217 | SELECT | |
218 | autnums.number AS number, | |
219 | COALESCE( | |
220 | (SELECT overrides.name FROM autnum_overrides overrides | |
221 | WHERE overrides.number = autnums.number), | |
222 | autnums.name | |
223 | ) AS name | |
224 | FROM autnums | |
225 | WHERE name <> %s ORDER BY number | |
226 | """, "") | |
0983f3dd MT |
227 | |
228 | for row in rows: | |
229 | a = writer.add_as(row.number) | |
230 | a.name = row.name | |
231 | ||
232 | # Add all networks | |
233 | log.info("Writing networks...") | |
234 | ||
235 | # Select all known networks | |
236 | rows = self.db.query(""" | |
5372d9c7 MT |
237 | -- Get a (sorted) list of all known networks |
238 | WITH known_networks AS ( | |
239 | SELECT network FROM announcements | |
240 | UNION | |
241 | SELECT network FROM networks | |
2373de38 MT |
242 | UNION |
243 | SELECT network FROM network_overrides | |
5372d9c7 MT |
244 | ORDER BY network |
245 | ) | |
246 | ||
247 | -- Return a list of those networks enriched with all | |
248 | -- other information that we store in the database | |
0983f3dd | 249 | SELECT |
5372d9c7 MT |
250 | DISTINCT ON (known_networks.network) |
251 | known_networks.network AS network, | |
0983f3dd | 252 | announcements.autnum AS autnum, |
bd1aa6a1 MT |
253 | |
254 | -- Country | |
255 | COALESCE( | |
256 | ( | |
257 | SELECT country FROM network_overrides overrides | |
258 | WHERE announcements.network <<= overrides.network | |
259 | ORDER BY masklen(overrides.network) DESC | |
260 | LIMIT 1 | |
261 | ), | |
262 | ( | |
263 | SELECT country FROM autnum_overrides overrides | |
264 | WHERE announcements.autnum = overrides.number | |
265 | ), | |
266 | networks.country | |
267 | ) AS country, | |
8e8555bb | 268 | |
0983f3dd | 269 | -- Flags |
1422b5d4 MT |
270 | COALESCE( |
271 | ( | |
272 | SELECT is_anonymous_proxy FROM network_overrides overrides | |
273 | WHERE announcements.network <<= overrides.network | |
274 | ORDER BY masklen(overrides.network) DESC | |
275 | LIMIT 1 | |
276 | ), | |
277 | ( | |
278 | SELECT is_anonymous_proxy FROM autnum_overrides overrides | |
279 | WHERE announcements.autnum = overrides.number | |
b8e25b71 MT |
280 | ), |
281 | FALSE | |
1422b5d4 MT |
282 | ) AS is_anonymous_proxy, |
283 | COALESCE( | |
284 | ( | |
285 | SELECT is_satellite_provider FROM network_overrides overrides | |
286 | WHERE announcements.network <<= overrides.network | |
287 | ORDER BY masklen(overrides.network) DESC | |
288 | LIMIT 1 | |
289 | ), | |
290 | ( | |
291 | SELECT is_satellite_provider FROM autnum_overrides overrides | |
292 | WHERE announcements.autnum = overrides.number | |
b8e25b71 MT |
293 | ), |
294 | FALSE | |
1422b5d4 MT |
295 | ) AS is_satellite_provider, |
296 | COALESCE( | |
297 | ( | |
298 | SELECT is_anycast FROM network_overrides overrides | |
299 | WHERE announcements.network <<= overrides.network | |
300 | ORDER BY masklen(overrides.network) DESC | |
301 | LIMIT 1 | |
302 | ), | |
303 | ( | |
304 | SELECT is_anycast FROM autnum_overrides overrides | |
305 | WHERE announcements.autnum = overrides.number | |
b8e25b71 MT |
306 | ), |
307 | FALSE | |
5372d9c7 MT |
308 | ) AS is_anycast, |
309 | ||
310 | -- Must be part of returned values for ORDER BY clause | |
17d49c4f MT |
311 | masklen(announcements.network) AS sort_a, |
312 | masklen(networks.network) AS sort_b | |
5372d9c7 MT |
313 | FROM known_networks |
314 | LEFT JOIN announcements ON known_networks.network <<= announcements.network | |
315 | LEFT JOIN networks ON known_networks.network <<= networks.network | |
17d49c4f | 316 | ORDER BY known_networks.network, sort_a DESC, sort_b DESC |
0983f3dd MT |
317 | """) |
318 | ||
319 | for row in rows: | |
320 | network = writer.add_network(row.network) | |
321 | ||
5372d9c7 MT |
322 | # Save country |
323 | if row.country: | |
324 | network.country_code = row.country | |
325 | ||
326 | # Save ASN | |
327 | if row.autnum: | |
328 | network.asn = row.autnum | |
0983f3dd MT |
329 | |
330 | # Set flags | |
331 | if row.is_anonymous_proxy: | |
332 | network.set_flag(location.NETWORK_FLAG_ANONYMOUS_PROXY) | |
333 | ||
334 | if row.is_satellite_provider: | |
335 | network.set_flag(location.NETWORK_FLAG_SATELLITE_PROVIDER) | |
336 | ||
337 | if row.is_anycast: | |
338 | network.set_flag(location.NETWORK_FLAG_ANYCAST) | |
339 | ||
8084b33a MT |
340 | # Add all countries |
341 | log.info("Writing countries...") | |
342 | rows = self.db.query("SELECT * FROM countries ORDER BY country_code") | |
343 | ||
344 | for row in rows: | |
345 | c = writer.add_country(row.country_code) | |
346 | c.continent_code = row.continent_code | |
347 | c.name = row.name | |
348 | ||
0983f3dd MT |
349 | # Write everything to file |
350 | log.info("Writing database to file...") | |
351 | for file in ns.file: | |
352 | writer.write(file) | |
353 | ||
6ffd06b5 MT |
354 | def handle_update_whois(self, ns): |
355 | downloader = location.importer.Downloader() | |
356 | ||
357 | # Download all sources | |
0365119d MT |
358 | with self.db.transaction(): |
359 | # Create some temporary tables to store parsed data | |
360 | self.db.execute(""" | |
361 | CREATE TEMPORARY TABLE _autnums(number integer, organization text) | |
362 | ON COMMIT DROP; | |
363 | CREATE UNIQUE INDEX _autnums_number ON _autnums(number); | |
364 | ||
2cd2e342 | 365 | CREATE TEMPORARY TABLE _organizations(handle text, name text NOT NULL) |
0365119d MT |
366 | ON COMMIT DROP; |
367 | CREATE UNIQUE INDEX _organizations_handle ON _organizations(handle); | |
368 | """) | |
369 | ||
370 | for source in location.importer.WHOIS_SOURCES: | |
6ffd06b5 MT |
371 | with downloader.request(source, return_blocks=True) as f: |
372 | for block in f: | |
373 | self._parse_block(block) | |
374 | ||
0365119d MT |
375 | self.db.execute(""" |
376 | INSERT INTO autnums(number, name) | |
377 | SELECT _autnums.number, _organizations.name FROM _autnums | |
2cd2e342 | 378 | JOIN _organizations ON _autnums.organization = _organizations.handle |
ee6ea398 | 379 | ON CONFLICT (number) DO UPDATE SET name = excluded.name; |
0365119d MT |
380 | """) |
381 | ||
429a43d1 MT |
382 | # Download all extended sources |
383 | for source in location.importer.EXTENDED_SOURCES: | |
384 | with self.db.transaction(): | |
429a43d1 MT |
385 | # Download data |
386 | with downloader.request(source) as f: | |
387 | for line in f: | |
388 | self._parse_line(line) | |
389 | ||
6ffd06b5 MT |
390 | def _parse_block(self, block): |
391 | # Get first line to find out what type of block this is | |
392 | line = block[0] | |
393 | ||
6ffd06b5 | 394 | # aut-num |
429a43d1 | 395 | if line.startswith("aut-num:"): |
6ffd06b5 MT |
396 | return self._parse_autnum_block(block) |
397 | ||
398 | # organisation | |
399 | elif line.startswith("organisation:"): | |
400 | return self._parse_org_block(block) | |
401 | ||
6ffd06b5 | 402 | def _parse_autnum_block(self, block): |
6ffd06b5 MT |
403 | autnum = {} |
404 | for line in block: | |
405 | # Split line | |
406 | key, val = split_line(line) | |
407 | ||
408 | if key == "aut-num": | |
409 | m = re.match(r"^(AS|as)(\d+)", val) | |
410 | if m: | |
411 | autnum["asn"] = m.group(2) | |
412 | ||
0365119d | 413 | elif key == "org": |
6ffd06b5 MT |
414 | autnum[key] = val |
415 | ||
416 | # Skip empty objects | |
417 | if not autnum: | |
418 | return | |
419 | ||
420 | # Insert into database | |
0365119d MT |
421 | self.db.execute("INSERT INTO _autnums(number, organization) \ |
422 | VALUES(%s, %s) ON CONFLICT (number) DO UPDATE SET \ | |
423 | organization = excluded.organization", | |
424 | autnum.get("asn"), autnum.get("org"), | |
6ffd06b5 MT |
425 | ) |
426 | ||
6ffd06b5 MT |
427 | def _parse_org_block(self, block): |
428 | org = {} | |
429 | for line in block: | |
430 | # Split line | |
431 | key, val = split_line(line) | |
432 | ||
0365119d | 433 | if key in ("organisation", "org-name"): |
6ffd06b5 MT |
434 | org[key] = val |
435 | ||
436 | # Skip empty objects | |
437 | if not org: | |
438 | return | |
439 | ||
0365119d MT |
440 | self.db.execute("INSERT INTO _organizations(handle, name) \ |
441 | VALUES(%s, %s) ON CONFLICT (handle) DO \ | |
442 | UPDATE SET name = excluded.name", | |
443 | org.get("organisation"), org.get("org-name"), | |
6ffd06b5 MT |
444 | ) |
445 | ||
429a43d1 MT |
446 | def _parse_line(self, line): |
447 | # Skip version line | |
448 | if line.startswith("2"): | |
449 | return | |
6ffd06b5 | 450 | |
429a43d1 MT |
451 | # Skip comments |
452 | if line.startswith("#"): | |
453 | return | |
6ffd06b5 | 454 | |
429a43d1 MT |
455 | try: |
456 | registry, country_code, type, line = line.split("|", 3) | |
457 | except: | |
458 | log.warning("Could not parse line: %s" % line) | |
459 | return | |
6ffd06b5 | 460 | |
429a43d1 MT |
461 | # Skip any lines that are for stats only |
462 | if country_code == "*": | |
6ffd06b5 MT |
463 | return |
464 | ||
429a43d1 MT |
465 | if type in ("ipv6", "ipv4"): |
466 | return self._parse_ip_line(country_code, type, line) | |
467 | ||
429a43d1 MT |
468 | def _parse_ip_line(self, country, type, line): |
469 | try: | |
470 | address, prefix, date, status, organization = line.split("|") | |
471 | except ValueError: | |
472 | organization = None | |
473 | ||
474 | # Try parsing the line without organization | |
475 | try: | |
476 | address, prefix, date, status = line.split("|") | |
477 | except ValueError: | |
478 | log.warning("Unhandled line format: %s" % line) | |
479 | return | |
480 | ||
481 | # Skip anything that isn't properly assigned | |
482 | if not status in ("assigned", "allocated"): | |
483 | return | |
484 | ||
485 | # Cast prefix into an integer | |
486 | try: | |
487 | prefix = int(prefix) | |
488 | except: | |
489 | log.warning("Invalid prefix: %s" % prefix) | |
7177031f | 490 | return |
429a43d1 MT |
491 | |
492 | # Fix prefix length for IPv4 | |
493 | if type == "ipv4": | |
494 | prefix = 32 - int(math.log(prefix, 2)) | |
495 | ||
496 | # Try to parse the address | |
497 | try: | |
498 | network = ipaddress.ip_network("%s/%s" % (address, prefix), strict=False) | |
499 | except ValueError: | |
500 | log.warning("Invalid IP address: %s" % address) | |
501 | return | |
502 | ||
87b3e102 MT |
503 | self.db.execute("INSERT INTO networks(network, country) \ |
504 | VALUES(%s, %s) ON CONFLICT (network) DO \ | |
505 | UPDATE SET country = excluded.country", | |
506 | "%s" % network, country, | |
6ffd06b5 MT |
507 | ) |
508 | ||
83d61c46 MT |
509 | def handle_update_announcements(self, ns): |
510 | server = ns.server[0] | |
511 | ||
22d8d199 MT |
512 | with self.db.transaction(): |
513 | if server.startswith("/"): | |
514 | self._handle_update_announcements_from_bird(server) | |
515 | else: | |
516 | self._handle_update_announcements_from_telnet(server) | |
517 | ||
518 | # Purge anything we never want here | |
519 | self.db.execute(""" | |
520 | -- Delete default routes | |
521 | DELETE FROM announcements WHERE network = '::/0' OR network = '0.0.0.0/0'; | |
522 | ||
523 | -- Delete anything that is not global unicast address space | |
524 | DELETE FROM announcements WHERE family(network) = 6 AND NOT network <<= '2000::/3'; | |
525 | ||
526 | -- DELETE "current network" address space | |
527 | DELETE FROM announcements WHERE family(network) = 4 AND network <<= '0.0.0.0/8'; | |
528 | ||
529 | -- DELETE local loopback address space | |
530 | DELETE FROM announcements WHERE family(network) = 4 AND network <<= '127.0.0.0/8'; | |
531 | ||
532 | -- DELETE RFC 1918 address space | |
533 | DELETE FROM announcements WHERE family(network) = 4 AND network <<= '10.0.0.0/8'; | |
534 | DELETE FROM announcements WHERE family(network) = 4 AND network <<= '172.16.0.0/12'; | |
535 | DELETE FROM announcements WHERE family(network) = 4 AND network <<= '192.168.0.0/16'; | |
536 | ||
537 | -- DELETE test, benchmark and documentation address space | |
538 | DELETE FROM announcements WHERE family(network) = 4 AND network <<= '192.0.0.0/24'; | |
539 | DELETE FROM announcements WHERE family(network) = 4 AND network <<= '192.0.2.0/24'; | |
540 | DELETE FROM announcements WHERE family(network) = 4 AND network <<= '198.18.0.0/15'; | |
541 | DELETE FROM announcements WHERE family(network) = 4 AND network <<= '198.51.100.0/24'; | |
542 | DELETE FROM announcements WHERE family(network) = 4 AND network <<= '203.0.113.0/24'; | |
543 | ||
544 | -- DELETE CGNAT address space (RFC 6598) | |
545 | DELETE FROM announcements WHERE family(network) = 4 AND network <<= '100.64.0.0/10'; | |
546 | ||
547 | -- DELETE link local address space | |
548 | DELETE FROM announcements WHERE family(network) = 4 AND network <<= '169.254.0.0/16'; | |
549 | ||
550 | -- DELETE IPv6 to IPv4 (6to4) address space | |
551 | DELETE FROM announcements WHERE family(network) = 4 AND network <<= '192.88.99.0/24'; | |
552 | ||
553 | -- DELETE multicast and reserved address space | |
554 | DELETE FROM announcements WHERE family(network) = 4 AND network <<= '224.0.0.0/4'; | |
555 | DELETE FROM announcements WHERE family(network) = 4 AND network <<= '240.0.0.0/4'; | |
556 | ||
557 | -- Delete networks that are too small to be in the global routing table | |
558 | DELETE FROM announcements WHERE family(network) = 6 AND masklen(network) > 48; | |
559 | DELETE FROM announcements WHERE family(network) = 4 AND masklen(network) > 24; | |
560 | ||
561 | -- Delete any non-public or reserved ASNs | |
562 | DELETE FROM announcements WHERE NOT ( | |
563 | (autnum >= 1 AND autnum <= 23455) | |
564 | OR | |
565 | (autnum >= 23457 AND autnum <= 64495) | |
566 | OR | |
567 | (autnum >= 131072 AND autnum <= 4199999999) | |
568 | ); | |
569 | ||
570 | -- Delete everything that we have not seen for 14 days | |
571 | DELETE FROM announcements WHERE last_seen_at <= CURRENT_TIMESTAMP - INTERVAL '14 days'; | |
572 | """) | |
573 | ||
574 | def _handle_update_announcements_from_bird(self, server): | |
575 | # Pre-compile the regular expression for faster searching | |
dc0be5c5 | 576 | route = re.compile(b"^\s(.+?)\s+.+?\[AS(.*?).\]$") |
22d8d199 MT |
577 | |
578 | log.info("Requesting routing table from Bird (%s)" % server) | |
579 | ||
580 | # Send command to list all routes | |
581 | for line in self._bird_cmd(server, "show route"): | |
582 | m = route.match(line) | |
583 | if not m: | |
584 | log.debug("Could not parse line: %s" % line.decode()) | |
585 | continue | |
586 | ||
587 | # Fetch the extracted network and ASN | |
588 | network, autnum = m.groups() | |
589 | ||
590 | # Insert it into the database | |
591 | self.db.execute("INSERT INTO announcements(network, autnum) \ | |
592 | VALUES(%s, %s) ON CONFLICT (network) DO \ | |
593 | UPDATE SET autnum = excluded.autnum, last_seen_at = CURRENT_TIMESTAMP", | |
594 | network.decode(), autnum.decode(), | |
595 | ) | |
596 | ||
597 | def _handle_update_announcements_from_telnet(self, server): | |
83d61c46 | 598 | # Pre-compile regular expression for routes |
83d61c46 MT |
599 | route = re.compile(b"^\*[\s\>]i([^\s]+).+?(\d+)\si\r\n", re.MULTILINE|re.DOTALL) |
600 | ||
601 | with telnetlib.Telnet(server) as t: | |
602 | # Enable debug mode | |
603 | #if ns.debug: | |
604 | # t.set_debuglevel(10) | |
605 | ||
606 | # Wait for console greeting | |
fcd5b8b2 MT |
607 | greeting = t.read_until(b"> ", timeout=30) |
608 | if not greeting: | |
609 | log.error("Could not get a console prompt") | |
610 | return 1 | |
83d61c46 MT |
611 | |
612 | # Disable pagination | |
613 | t.write(b"terminal length 0\n") | |
614 | ||
615 | # Wait for the prompt to return | |
616 | t.read_until(b"> ") | |
617 | ||
618 | # Fetch the routing tables | |
22d8d199 MT |
619 | for protocol in ("ipv6", "ipv4"): |
620 | log.info("Requesting %s routing table" % protocol) | |
83d61c46 | 621 | |
22d8d199 MT |
622 | # Request the full unicast routing table |
623 | t.write(b"show bgp %s unicast\n" % protocol.encode()) | |
83d61c46 | 624 | |
22d8d199 MT |
625 | # Read entire header which ends with "Path" |
626 | t.read_until(b"Path\r\n") | |
83d61c46 | 627 | |
22d8d199 MT |
628 | while True: |
629 | # Try reading a full entry | |
630 | # Those might be broken across multiple lines but ends with i | |
631 | line = t.read_until(b"i\r\n", timeout=5) | |
632 | if not line: | |
633 | break | |
83d61c46 | 634 | |
22d8d199 MT |
635 | # Show line for debugging |
636 | #log.debug(repr(line)) | |
d773c1bc | 637 | |
22d8d199 MT |
638 | # Try finding a route in here |
639 | m = route.match(line) | |
640 | if m: | |
641 | network, autnum = m.groups() | |
83d61c46 | 642 | |
22d8d199 MT |
643 | # Convert network to string |
644 | network = network.decode() | |
83d61c46 | 645 | |
22d8d199 MT |
646 | # Append /24 for IPv4 addresses |
647 | if not "/" in network and not ":" in network: | |
648 | network = "%s/24" % network | |
83d61c46 | 649 | |
22d8d199 MT |
650 | # Convert AS number to integer |
651 | autnum = int(autnum) | |
83d61c46 | 652 | |
22d8d199 | 653 | log.info("Found announcement for %s by %s" % (network, autnum)) |
83d61c46 | 654 | |
22d8d199 MT |
655 | self.db.execute("INSERT INTO announcements(network, autnum) \ |
656 | VALUES(%s, %s) ON CONFLICT (network) DO \ | |
657 | UPDATE SET autnum = excluded.autnum, last_seen_at = CURRENT_TIMESTAMP", | |
658 | network, autnum, | |
659 | ) | |
83d61c46 | 660 | |
22d8d199 | 661 | log.info("Finished reading the %s routing table" % protocol) |
1d4e4e8f | 662 | |
22d8d199 MT |
663 | def _bird_cmd(self, socket_path, command): |
664 | # Connect to the socket | |
665 | s = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM) | |
666 | s.connect(socket_path) | |
cedee656 | 667 | |
22d8d199 MT |
668 | # Allocate some buffer |
669 | buffer = b"" | |
83d61c46 | 670 | |
22d8d199 MT |
671 | # Send the command |
672 | s.send(b"%s\n" % command.encode()) | |
209c04b6 | 673 | |
22d8d199 MT |
674 | while True: |
675 | # Fill up the buffer | |
676 | buffer += s.recv(4096) | |
209c04b6 | 677 | |
22d8d199 MT |
678 | while True: |
679 | # Search for the next newline | |
680 | pos = buffer.find(b"\n") | |
209c04b6 | 681 | |
22d8d199 MT |
682 | # If we cannot find one, we go back and read more data |
683 | if pos <= 0: | |
684 | break | |
209c04b6 | 685 | |
22d8d199 MT |
686 | # Cut after the newline character |
687 | pos += 1 | |
b89cee80 | 688 | |
22d8d199 MT |
689 | # Split the line we want and keep the rest in buffer |
690 | line, buffer = buffer[:pos], buffer[pos:] | |
83d61c46 | 691 | |
22d8d199 MT |
692 | # Look for the end-of-output indicator |
693 | if line == b"0000 \n": | |
694 | return | |
83d61c46 | 695 | |
22d8d199 MT |
696 | # Otherwise return the line |
697 | yield line | |
83d61c46 | 698 | |
d7fc3057 MT |
699 | def handle_update_overrides(self, ns): |
700 | with self.db.transaction(): | |
701 | # Drop all data that we have | |
702 | self.db.execute(""" | |
703 | TRUNCATE TABLE autnum_overrides; | |
704 | TRUNCATE TABLE network_overrides; | |
705 | """) | |
706 | ||
707 | for file in ns.files: | |
708 | log.info("Reading %s..." % file) | |
709 | ||
710 | with open(file, "rb") as f: | |
711 | for type, block in location.importer.read_blocks(f): | |
712 | if type == "net": | |
713 | network = block.get("net") | |
714 | # Try to parse and normalise the network | |
715 | try: | |
716 | network = ipaddress.ip_network(network, strict=False) | |
717 | except ValueError as e: | |
718 | log.warning("Invalid IP network: %s: %s" % (network, e)) | |
719 | continue | |
720 | ||
94dfab8c MT |
721 | # Prevent that we overwrite all networks |
722 | if network.prefixlen == 0: | |
723 | log.warning("Skipping %s: You cannot overwrite default" % network) | |
724 | continue | |
725 | ||
d7fc3057 MT |
726 | self.db.execute(""" |
727 | INSERT INTO network_overrides( | |
728 | network, | |
729 | country, | |
730 | is_anonymous_proxy, | |
731 | is_satellite_provider, | |
732 | is_anycast | |
56f6587a | 733 | ) VALUES (%s, %s, %s, %s, %s) |
d7fc3057 MT |
734 | ON CONFLICT (network) DO NOTHING""", |
735 | "%s" % network, | |
736 | block.get("country"), | |
28d29b7c MT |
737 | self._parse_bool(block, "is-anonymous-proxy"), |
738 | self._parse_bool(block, "is-satellite-provider"), | |
739 | self._parse_bool(block, "is-anycast"), | |
d7fc3057 MT |
740 | ) |
741 | ||
f476cdfd MT |
742 | elif type == "aut-num": |
743 | autnum = block.get("aut-num") | |
d7fc3057 MT |
744 | |
745 | # Check if AS number begins with "AS" | |
746 | if not autnum.startswith("AS"): | |
747 | log.warning("Invalid AS number: %s" % autnum) | |
748 | continue | |
749 | ||
750 | # Strip "AS" | |
751 | autnum = autnum[2:] | |
752 | ||
753 | self.db.execute(""" | |
754 | INSERT INTO autnum_overrides( | |
755 | number, | |
756 | name, | |
bd1aa6a1 | 757 | country, |
d7fc3057 MT |
758 | is_anonymous_proxy, |
759 | is_satellite_provider, | |
760 | is_anycast | |
bd1aa6a1 | 761 | ) VALUES(%s, %s, %s, %s, %s, %s) |
d7fc3057 | 762 | ON CONFLICT DO NOTHING""", |
bd1aa6a1 MT |
763 | autnum, |
764 | block.get("name"), | |
765 | block.get("country"), | |
28d29b7c MT |
766 | self._parse_bool(block, "is-anonymous-proxy"), |
767 | self._parse_bool(block, "is-satellite-provider"), | |
768 | self._parse_bool(block, "is-anycast"), | |
d7fc3057 MT |
769 | ) |
770 | ||
771 | else: | |
772 | log.warning("Unsupport type: %s" % type) | |
773 | ||
28d29b7c MT |
774 | @staticmethod |
775 | def _parse_bool(block, key): | |
776 | val = block.get(key) | |
777 | ||
778 | # There is no point to proceed when we got None | |
779 | if val is None: | |
780 | return | |
781 | ||
782 | # Convert to lowercase | |
783 | val = val.lower() | |
784 | ||
785 | # True | |
786 | if val in ("yes", "1"): | |
787 | return True | |
788 | ||
789 | # False | |
790 | if val in ("no", "0"): | |
791 | return False | |
792 | ||
793 | # Default to None | |
794 | return None | |
795 | ||
8084b33a MT |
796 | def handle_import_countries(self, ns): |
797 | with self.db.transaction(): | |
798 | # Drop all data that we have | |
799 | self.db.execute("TRUNCATE TABLE countries") | |
800 | ||
801 | for file in ns.file: | |
802 | for line in file: | |
803 | line = line.rstrip() | |
804 | ||
805 | # Ignore any comments | |
806 | if line.startswith("#"): | |
807 | continue | |
808 | ||
809 | try: | |
810 | country_code, continent_code, name = line.split(maxsplit=2) | |
811 | except: | |
812 | log.warning("Could not parse line: %s" % line) | |
813 | continue | |
814 | ||
815 | self.db.execute("INSERT INTO countries(country_code, name, continent_code) \ | |
816 | VALUES(%s, %s, %s) ON CONFLICT DO NOTHING", country_code, name, continent_code) | |
817 | ||
6ffd06b5 MT |
818 | |
819 | def split_line(line): | |
820 | key, colon, val = line.partition(":") | |
821 | ||
822 | # Strip any excess space | |
823 | key = key.strip() | |
824 | val = val.strip() | |
78ff0cf2 | 825 | |
6ffd06b5 | 826 | return key, val |
78ff0cf2 MT |
827 | |
828 | def main(): | |
829 | # Run the command line interface | |
830 | c = CLI() | |
831 | c.run() | |
832 | ||
833 | main() |