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Author SHA1 Message Date
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
Pavel Machek dcab789047 Renamed f_path to f_path_mask -- which is what it really is. Use 
linklist instead of array of signed integers for path mask.
 2000-04-12 13:07:53 +00:00
Pavel Machek 77de68825c BGP_PATH masks now actually work as data type. 2000-04-12 12:10:37 +00:00
Pavel Machek 7f77e25002 Functions for matching paths added, tested lightly. 
Functions for working with community lists added, they compile.

This should not be definitive place for this stuff.
 2000-04-10 15:07:43 +00:00
Martin Mares b157361533 SOURCE should really refer to rta->source, not rta->gw. 
Please check that all rta attributes are available, I guess that at
least rta->dest is missing.
 2000-04-01 09:15:10 +00:00
Martin Mares 221135d6bf Include "lib/string.h" instead of <string.h>. It should give us bzero() 
and other non-portable functions on all systems.
 2000-03-31 23:30:21 +00:00
Pavel Machek 0a06a9b8b3 f_run gets one more parameter to distinguish between in and out modes. 2000-03-29 09:02:00 +00:00
Pavel Machek 995e5894cd 1 less shift/reduce conflict 
print now takes arguments separated by ,

[ 1.2.3.0/24 .. 3.4.5.0/8 ] is now forbidden

[ 1.2.3.0/8 ] now actually works
 2000-03-09 14:47:43 +00:00
Pavel Machek e4a73dbfcb CONST() is now gone 2000-03-09 13:21:40 +00:00
Martin Mares 9f4929e749 Renamed EAF_INLINE to EAF_TEMP to make the name reflect the real meaning. 2000-03-04 22:30:44 +00:00
Martin Mares a58dad6238 Please *think* when defining operator priorities. 
(-: num_of_parser_conflicts -= 42 :-)
 2000-03-04 21:19:10 +00:00
Pavel Machek d4d7562806 Avoid being exponential, do not allow ! = 2000-03-02 22:23:18 +00:00
Pavel Machek 31e79264a2 tmp_attrs fixed. 
I do not know if it is right since mj ingores talk once started :-(.
 2000-03-01 14:31:31 +00:00
Martin Mares db1326aa5e Dynamic attributes are now declared in per-protocol grammar files instead 
of filter/config.Y. Bird now compiles even if you disable RIP.

Removed RTA and IMPOSSIBLE tokens (unused).

Removed superfluous comment in filter.h.

I've tried to do my best, but Pavel, please check these changes.
 2000-03-01 11:32:23 +00:00
Pavel Machek 2d496d2028 Get rid of 'ab'-s, added return to functions. 2000-02-25 11:15:26 +00:00
Pavel Machek 70844a6a46 Updated docs about filters, and added fixme. 2000-01-26 21:28:53 +00:00
Pavel Machek 60d7d10e6f Added fixme. 1999-12-18 20:39:53 +00:00
Pavel Machek 2e18b87dcf Disallow rta.net syntax. 1999-12-08 12:51:26 +00:00
Pavel Machek 6c14255dd6 Make rta. syntax optional. 1999-12-08 10:15:51 +00:00
Martin Mares 430da60fa2 Implemented `show route where <condition>' command. 
Pavel, please check my addition to filter/config.Y.
 1999-12-02 14:04:44 +00:00
Pavel Machek 6781e5213b FIXME's cleaned up: I have actually fixed things without killing 
comments.

There are no urgent FIXME's in filters. Perhaps we should start with
documentation?
 1999-12-01 11:39:58 +00:00
Pavel Machek 4aa885a53c Filters: fix rta access to use ->aux field. 1999-11-25 13:42:49 +00:00
Pavel Machek 455ca441d9 Check that prefixes are really prefixes + fix config file to 
comply. (:-( 1.2.3.4/8 looks nicer than 1.0.0.0/8).
 1999-11-24 12:16:31 +00:00
Pavel Machek 8f013d9ca4 Sorry, previous commit did not even compile. 1999-11-24 12:09:58 +00:00
Pavel Machek 48f9e01954 Filters: write access to dynamic attributes should actually work. It 
would be nice to find method of testing such beasts.
 1999-11-24 12:04:32 +00:00
Pavel Machek f31156ca21 Filters: first parts of extended attributes being read-write. It can 
not actually work since I do not do rta/rte cow, yet.
 1999-11-18 14:29:10 +00:00
Pavel Machek c7b43f33ae Split inst->code into inst->code and inst->aux. Both are only 16 bit, 
so aux is suitable for storing type but not much more.
 1999-11-18 14:01:36 +00:00
Pavel Machek 346a12c210 You can now print enum. 1999-11-18 13:21:52 +00:00
Martin Mares fd54b60266 ENUM's are now recognized as constants. 1999-11-15 11:36:09 +00:00
Pavel Machek 4515bdba4f Fixed order of arguments for function call. 
Enumeration types should work once CF_ENUM() is ready.

Created test.conf for testing of filters. (I'm currently thinking
about ./tests in root directory which will just fire all available
tests...)
 1999-11-11 13:55:39 +00:00
Pavel Machek 4ed8718a19 Shift/reduce conflict goes away _and_ if/then/else works. 1999-11-11 13:27:59 +00:00
Pavel Machek 1183b6b229 Enums do not work, this is testcase. 1999-11-10 13:59:13 +00:00
Pavel Machek cb8034f42c First try on enumerational types. 
Mj's noassoc removed: this brings back shift/reduce conflict but
it makes parser actually work. Mj please check it. IF/THEN/ELSE still
will not work.
 1999-11-10 13:44:29 +00:00