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209 commits

Author SHA1 Message Date
Ondrej Zajicek (work) 6aaaa63519 Change parser to handle numbers as unsigned 
Lexer always parsed numbers as unsigned, but parser handled them as
signed and grammar contained many unnecessary checks for negativity.
 2017-05-23 17:40:19 +02:00
Jan Moskyto Matejka 61e501da89 Filter: Check whether IP is 4 or 6 2017-03-22 14:53:37 +01:00
Jan Moskyto Matejka 8c9986d310 Filters: VPN Route Distinguishers, Prefix Type, Docs Update 2017-03-13 13:51:20 +01:00
Jan Moskyto Matejka 5b208e296f Removing (struct rta)->cast. Never used. 2016-12-22 13:09:59 +01:00
Jan Moskyto Matejka ad88b94bca Merge branch 'int-new-rpki-squashed' (early part) into int-new 2016-12-07 15:30:46 +01:00
Pavel Tvrdik e58f8c28d2 Add `.maxlen' operator to all ROA prefixes in filters 
Example:
  bird> eval (1.2.0.0/16 max 20 as 1234).maxlen
  20

Todo: Should be described in user docs
 2016-12-07 09:35:24 +01:00
Pavel Tvrdik 69ae578450 Add `.asn' operator to all ROA prefixes in filters 
Example:
  bird> eval (1.2.0.0/16 max 20 as 1234).asn
  1234

Todo: Should be described in user docs
 2016-12-07 09:35:24 +01:00
Pavel Tvrdik 4b135d0958 Birdtest: Add function format in grammar for stringify expression 2016-11-16 12:22:01 +01:00
Pavel Tvrdik 3ec0bedc60 Birdtest: Remove bt_assert command from term 
The bt_assert function does not return any value, so it was useless to
have a option in term definition.
 2016-11-16 12:22:01 +01:00
Ondrej Zajicek (work) 9b0a0ba9e6 Unit Testing for BIRD 
- Unit Testing Framework (BirdTest)
 - Integration of BirdTest into the BIRD build system
 - Tests for several BIRD modules

 Based on squashed Pavel Tvrdik's int-test branch, updated for
 current int-new branch.
 2016-11-09 16:36:34 +01:00
Ondrej Zajicek (work) 8860e991f6 Merge branch 'master' into int-new 2016-11-08 19:27:58 +01:00
Ondrej Zajicek (work) c8cafc8ebb Minor code cleanups 2016-11-08 17:46:29 +01:00
Ondrej Zajicek (work) cc5b93f72d Merge tag 'v1.6.2' into int-new 2016-11-08 17:04:29 +01:00
Ondrej Zajicek (work) 60566c5c80 Filter: large community sets 
Add support for lc sets to filter code. Grammar of (small) community sets
has to be updated to avoid parser collisions.
 2016-10-03 13:47:37 +02:00
Ondrej Zajicek (work) 66dbdbd993 BGP: Support for large communities 
Add support for large communities (draft-ietf-idr-large-community),
96bit alternative to RFC 1997 communities.

Thanks to Matt Griswold for the original patch.
 2016-10-03 12:48:56 +02:00
Pavel Tvrdik 768d5e1058 Add !~ operator to filter grammar 2016-09-21 13:35:52 +02:00
Ondrej Zajicek (work) 122deb6d5b Filters: Fixes pm_same() w.r.t. ASN ranges and ASN expressions 
This is necessary for proper detection of filter changes during
reconfigurations.
 2016-06-09 00:30:41 +02:00
Ondrej Filip a0fe1944d1 Add AS# ranges to bgpmask. 2016-06-08 16:22:44 +02:00
Jan Moskyto Matejka 7a7ac65682 Merge branch 'master' into int-new-channels 2016-04-08 12:28:33 +02:00
Ondrej Zajicek (work) 9c9cc35c02 Filter: Implement last_nonaggregated operator on bgp_path 2016-02-16 17:33:58 +01:00
Pavel Tvrdík 0264ccf6f4 Rewrite roa_check() for integrated BIRD 
Thanks to Ondrej Zajicek for his support with writing this code.
 2016-01-20 16:46:58 +01:00
Ondrej Zajicek (work) 04632fd77f Follow-up work on integration 2015-12-24 15:56:04 +01:00
Ondrej Zajicek (work) 23c212e7f1 Follow-up work on integration 2015-12-21 03:33:18 +01:00
Jan Moskyto Matejka 9656dce72e ROA code switchoff 2015-12-20 13:04:07 +01:00
Jan Moskyto Matejka 5e173e9f63 Stop perusing f_prefix for non-prefix-set uses 
Multiple changes by Ondrej Santiago Zajicek
 2015-12-19 23:49:47 +01:00
Jan Moskyto Matejka d7661fbe9d Removed BITS_PER_IP_ADDRESS, MAX_PREFIX_LENGTH, BIRD_AF 
Explicit setting of AF_INET(6|) in IP socket creation. BFD set to listen
on v6, without setting the V6ONLY flag to catch both v4 and v6 traffic.

Squashing and minor changes by Ondrej Santiago Zajicek
 2015-12-19 15:57:09 +01:00
Ondrej Zajicek (work) fe9f1a6ded Initial commit on integrated BIRD 
New data types net_addr and variants (in lib/net.h) describing
network addresses (prefix/pxlen). Modifications of FIB structures
to handle these data types and changing everything to use these
data types instead of prefix/pxlen pairs where possible.

The commit is WiP, some protocols are not yet updated (BGP, Kernel),
and the code contains some temporary scaffolding.

Comments are welcome.
 2015-11-05 12:48:52 +01:00
Ondrej Zajicek 51762a45b3 Allows user data attached to f_trie_node structure. 
Thanks to Alexander Chernikov for the patch.
 2015-02-21 14:05:20 +01:00
Ondrej Zajicek b2f008378a Allows more constants in set literals. 
Thanks to Michael Fincham for the bugreport.
 2014-10-02 12:52:50 +02:00
Ondrej Zajicek a5fc59587f Rewrites static attribute filter code and adds ifname/ifindex attributes. 
Thanks to Sergey Popovich for the original ifname/ifindex patch.
 2013-09-26 22:08:21 +02:00
Ondrej Zajicek 00192d5ab8 Implements proper setting of 'gw' route attribute. 
Thanks to Sergey Popovich for the bugreport.
 2013-08-13 20:32:02 +02:00
Ondrej Zajicek 4ee39ff2ff Fixes initial random values for function arguments. 
Thanks to Javor Kliachev for the bugreport.
 2013-07-26 11:08:59 +02:00
Ondrej Zajicek 1103b32e83 Allows to define constants of all filter types. 2013-07-25 22:33:57 +02:00
Ondrej Zajicek 182a78957d Allows some modifications of dest attribute in filters. 2012-04-29 01:35:52 +02:00
Ondrej Zajicek af582c4811 Route Origin Authorization basics. 
- ROA tables, which are used as a basic part for RPKI.
 - Commands for examining and modifying ROA tables.
 - Filter operators based on ROA tables consistent with RFC 6483.
 2012-03-18 17:32:30 +01:00
Ondrej Zajicek 117e3c4bbf Fixes a bug in pair set intervals. 
Pair intervals in form (a,b)..(c,d) were mishanded.

Thanks to Alexander Shikoff for the bugreport.
 2012-03-15 12:18:26 +01:00
Ondrej Zajicek 78e33c29bb Some minor fixes in parser. 2011-10-26 20:06:36 +02:00
Ondrej Zajicek 736fd7303c Fixes a bug with multiple function arguments. 2011-09-27 13:49:32 +02:00
Ondrej Zajicek 42a0c05408 BGP Extended communities. 2011-08-14 13:55:02 +02:00
Ondrej Zajicek e08d2ff08e Adds filter clist operation. 2011-06-26 17:09:24 +02:00
Ondrej Zajicek b8cc390e7e Fixes several problems in filter syntax. 
- Fixes several conflicts in the grammar.
 - Fixes a bug in (a..b, c) pair patterns.
 - Makes pair patterns orthogonal.
 - Allows term expressions in pair patterns without additional ( ).
 - Allows several comma separated values in switch cases.
 2011-05-06 22:00:54 +02:00
Ondrej Filip c454872f4e Avoid using stack. 2011-03-27 23:27:37 +02:00
Ondrej Filip 4fc36f394e This adds (*,x) functionality. 2011-03-26 14:18:56 +01:00
Ondrej Zajicek 26d92bb892 A hack to distinguish if..else from else: in case. 
The old BIRD grammar needs two lookaheads to distinguish if..else from
else: in case, which caused the parser to fail on some combinations of
both expressions.

This patch replaces two tokens 'else' ':' by one token 'else:' to fix
that.
 2011-03-23 12:49:53 +01:00
Ondrej Zajicek b2b7bbfc69 Fixes scope of filter symbols. 2010-10-04 19:55:11 +02:00
Ondrej Filip edaec901e1 Even set of number can be made by expressions. 2010-08-03 15:22:29 +02:00
Ondrej Filip 4733b49ed6 Syntax of sets improved. 2010-08-03 15:16:25 +02:00
Ondrej Zajicek 7f0d245a5e Minor changes in prefix trie. 2010-07-27 17:17:11 +02:00
Ondrej Zajicek ba5c0057ed Extends pair set syntax, matching and deleting against clist. 
Expressions like (123,*) can be used in pair set literals, clists can be
matched against pair sets (community ~ pairset) and pair sets can be
used to specify items to delete from clists (community.delete(pairset)).
 2010-05-22 22:47:24 +02:00
Ondrej Zajicek 126683feed Filter language updates; new route attributes and datatype. 
- Adds bgp_originator_id and bgp_cluster_list route attributes.
 - Adds dotted quad filter datatype (for router IDs, used by
   bgp_originator_id and ospf_router_id route attributes).
 - Fixes pair ~ pair set matching.
 - Documentation updates.
 2010-03-29 19:29:03 +02:00
Ondrej Zajicek aa46124804 Clear local variables in filters and functions. 
Fixes crash when used uninitialized variables.
This problem was surprisingly tricky to fix.
 2010-03-19 09:41:18 +01:00
Ondrej Zajicek 14f6aca480 Changes right recursion to left in the grammar of the case expression. 2010-02-17 11:29:48 +01:00
Ondrej Zajicek 5f47c4c11e Changes right-recursion to left-recursion in a filter grammar. 
Because we don't want to have a limit on a function/filter length.
 2010-02-02 00:03:46 +01:00
Ondrej Zajicek 7ea5b00f42 First and last accessors to as_paths. 2009-10-08 15:23:24 +01:00
Ondrej Zajicek 5004d02cb9 Merge branch 'master' into dev 2009-06-26 01:06:12 +02:00
Ondrej Zajicek 92a72a4cbd Adds support for dynamic pair and bgp mask expressions. 2009-06-01 19:32:41 +02:00
Ondrej Zajicek f429d43482 Removes some remnant of '|' bgp path separator. 2009-06-01 16:20:48 +02:00
Ondrej Filip 9be1086d29 New type variable 'V' defined in filters. This type is checked 
only for name, never for value in function filter_same()
 2009-05-29 23:08:28 +02:00
Ondrej Zajicek c8a6b9a3d1 Rewrite of buggy AS path matching. 
Old AS path maching supposes thath AS number appears
only once in AS path, but that is not true. It also
contains some bugs related to AS path sets.

New code does not use any assumptions about semantic
structure of AS path. It is asymptotically slower than
the old code, but on real paths it is not significant.

It also allows '?' for matching one arbitrary AS number.
 2009-04-17 01:48:36 +02:00
Ondrej Zajicek b1a597e0c3 Reimplementation of prefix sets. 
Prefix sets were broken beyond any repair and have to be reimplemented.
They are reimplemented using a trie with bitmasks in nodes.
There is also change in the interpretation of minus prefix pattern,
but the old interpretation was already inconsistent with
the documentation and broken.

There is also some bugfixes in filter code related to set variables.
 2009-03-31 12:55:57 +02:00
Ondrej Zajicek cf18603491 New syntax for bgp_path 2009-03-14 12:43:10 +01:00
Ondrej Zajicek f949163039 New syntax for bgp_path 2009-01-27 17:35:00 +01:00
Ondrej Zajicek 083c43e22e fixes some 64-bit related bugs. 
Filter code used 'aux' integer field of 'symbol' struct to store ptr
to next symbol and both 'aux2' and 'def' fields for value.
Changed to just 'def' for value and 'aux2' for ptr to next symbol.
Also another minor bugfix.
 2008-12-25 11:55:27 +01:00
Ondrej Zajicek e29fa06ece New read-only route attribute 'proto' added. It returns a string 
representing a name of the protocol that originated the route.
Strings can be compared using = or matched using ~. Routes can
be filtered, for example:

show route where proto ~ "bgp1*"
 2008-11-14 14:50:37 +01:00
Ondrej Zajicek 11cb620266 Implementation of 4B ASN support for BGP 2008-10-26 22:36:08 +01:00
Martin Mares 03e3d184b2 Fix bison input for current build tools, otherwise bison or the compiler 
will abort the build.

(by Andreas)
 2004-05-31 17:44:39 +00:00
Martin Mares de10a974f2 Added missing semicolons. 2002-11-13 08:46:12 +00:00
Pavel Machek a5a947d4d8 Fixing error messages. 2000-06-08 10:26:19 +00:00
Martin Mares bf3eb98eb8 Use nested scopes properly. Updated according to cf_define_symbol() changes. 
The rest of code doesn't need changing since it doesn't use nesting.
 2000-06-04 19:30:55 +00:00
Pavel Machek 5f4aee76a2 Added && and ||. 2000-06-01 08:43:29 +00:00
Pavel Machek 1877dab217 Allow 
case net {
                       62.0.0.0/8+:
                       10.0.0.0/8+:
                       else: reject;
               }
 2000-06-01 08:34:30 +00:00
Pavel Machek 1895e81e05 Allow matching on enums: 
if !(scope ~ [ SCOPE_HOST, SCOPE_SITE ]) then {
                print "Failed in test";
                quitbird;
        }
 2000-06-01 08:32:49 +00:00
Pavel Machek 0dc4431cde Access to all attributes we should be able to access seems to work. 2000-05-30 11:07:22 +00:00
Pavel Machek 26c09e1d25 Added read-only access to all required fields in rta. 2000-05-30 10:42:39 +00:00
Pavel Machek 2bdb5e0083 Cleaning static attributes 2000-05-30 10:23:04 +00:00
Pavel Machek fe613ecded Access to few more attributes is needed. 2000-05-30 10:13:32 +00:00
Pavel Machek ad9074e9ba Cleaned up warnings. 2000-05-25 15:20:40 +00:00
Pavel Machek 9a09a64bb4 Use ? in path matching to avoid /* trap. 2000-05-25 14:58:38 +00:00
Pavel Machek 72282e2a1b Fixed comment not to be misleading. 2000-05-25 12:33:15 +00:00
Pavel Machek 60de3356ab Resolved shift/reduce conflict 2000-05-16 14:24:33 +00:00
Pavel Machek c5a06f65ee Allow other operations than +. 2000-05-15 12:27:45 +00:00
Pavel Machek cbfd671f11 Allow accessing defined symbols. 2000-05-15 12:19:26 +00:00
Martin Mares e3f2d5fce3 Cleanup of configuration. 
o  Use `expr' instead of `NUM' and `ipa' instead of `IPA',
   so that defined symbols work everywhere.
o  `define' now accepts both numbers and IP addresses.
o  Renamed `ipa' in filters to `fipa'.

Pavel, please update filters to accept define'd symbols as well.
 2000-05-15 11:48:23 +00:00
Martin Mares 3b1c523d79 Got rid of startup functions and filters_postconfig(). 
By the way, how do you expect pointers to fit in an int?
 2000-05-15 10:53:56 +00:00
Martin Mares 1c20608e02 Added f_eval_int() and EVAL configuration command. 2000-05-15 10:49:38 +00:00
Martin Mares 758458be05 Unified parsing of prefixes. 
Had to rename `prefix' in filters to `fprefix'.
 2000-05-13 11:17:49 +00:00
Martin Mares 2edb31b097 Split CF_HDR section to CF_HDR (only includes) and CF_DEFINES (defines, 
C declarations etc.).
 2000-04-28 15:11:10 +00:00
Pavel Machek b0c9c21c29 Small cleanup. 2000-04-26 09:38:07 +00:00
Pavel Machek f71bded6e9 Bugfix in i_same (comparing of paths still does not work). 2000-04-26 09:30:12 +00:00
Pavel Machek 7a86a8b08d Added code for testing filters. 2000-04-26 08:03:50 +00:00
Pavel Machek 94d9dfa47a Startup renamed to __startup: it is internal function and mj already 
uses word startup in other context.
 2000-04-26 07:31:45 +00:00
Pavel Machek 7d6eebae3b Create syntax sugar for add/delete/prepend, so xyzzy.prepend(123) is 
possible. That means that milestone 3 was reached.
 2000-04-20 10:25:51 +00:00
Pavel Machek 4444ed2b26 It is good idea to separate entries in list _somehow_. Adding/deleting 
to community lists from filters now works.
 2000-04-17 11:42:08 +00:00
Pavel Machek 9c400ec9dd Int sets moved to core. It is now possible to have variable of type clist. 2000-04-17 11:34:38 +00:00
Pavel Machek 684c6f5a0e Path_getlen moved to nest and length was made callable from filters. 2000-04-17 11:06:39 +00:00
Pavel Machek 4b641bab52 Path matching now actually works, including / * 1 2 3 * /. 2000-04-17 10:50:03 +00:00
Pavel Machek e399b6f6ad Path and path matching seem to work, now. 2000-04-17 10:42:28 +00:00
Pavel Machek afc54517db Prepend and creation of empty path should work, but it has strange 
syntax for now.
 2000-04-17 10:16:47 +00:00
Pavel Machek a2d157463a One less shift/reduce conflict. 2000-04-12 14:05:37 +00:00
Pavel Machek 10a5360886 Filters now know type path. It is possible to declare variable of type 
path, but it is not possible to write constant of type path.

It should be possible to print paths and match them.
 2000-04-12 13:31:39 +00:00