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288 commits

Author SHA1 Message Date
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
0888a737b0 Extends set operations in filters. 
Allows add/filter/delete clist on clist (set algebra on clists).

Allows number ~ bgppath match.
 2012-03-15 21:07:58 +01:00
Ondrej Zajicek
8796a8a56e Fixes name for unnamed filters. 
Thanks to Alexander V. Chernikov for the suggestion.
 2012-03-15 12:50:49 +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
a03ede6493 Fixes a tricky bug in route filtering. 
Route attributes was used after rta was freed during copy-on-write in
filter code. This causes some random crashes, esp. with multipath
routes.
 2012-01-03 00:42:25 +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 Filip
4271f2b77e Fixed problem during 'configure' with EC 2011-09-18 13:52:50 +02:00
Ondrej Filip
48ec367aab Configuration can include other files. 2011-09-11 21:21:47 +02:00
Ondrej Zajicek
42a0c05408 BGP Extended communities. 2011-08-14 13:55:02 +02:00
Ondrej Zajicek
fdf16eb658 Prints full community lists during 'show route all'. 2011-07-03 19:43:30 +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
0aa88530ad Convert && and || to shortcut boolean operators. 2011-03-23 13:40:46 +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
938b191b92 Fixes error handling in ASN expressions. 2010-10-09 01:00:53 +02:00
Ondrej Zajicek
b2b7bbfc69 Fixes scope of filter symbols. 2010-10-04 19:55:11 +02:00
Ondrej Zajicek
0d1b3c4c0e Changes print-like filter commands to use a log instead of a stderr. 
And extends the log subsystem to better handle that.
 2010-09-20 13:01:01 +02:00
Ondrej Zajicek
2dec1e3471 Fixes a bug in pair sets. 2010-09-15 02:01:23 +02:00
Ondrej Zajicek
a58022a64e Fixes a bug in community set delete. 2010-09-11 20:14:53 +02:00
Ondrej Filip
946dc15c92 Documentation update and improvement of tests related to expressions in sets. 2010-08-03 17:35:34 +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
c477f48916 Hostcache should use trie to filter relevant route changes. 2010-07-27 18:20:12 +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
d759c1a6f8 NEWS and version update. 2010-04-09 17:42:39 +02:00
Ondrej Zajicek
0277cc0baf Revert "Fixes behavior of defined() on bgp_community attribute." 
This reverts commit 74e9331fe0.
 2010-04-08 17:47:14 +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
74e9331fe0 Fixes behavior of defined() on bgp_community attribute. 2010-03-18 00:10:35 +01:00
Ondrej Zajicek
e8da1bd0b5 Fixes missing cases in filters. 2010-03-15 00:34:44 +01:00
Ondrej Zajicek
dfd48621d1 Replaces the algorithm for building balanced trees. 
Changes the time complexity of the algorithm from O(n^2) to O(n*log(n)).
This speeds up loading of huge DEC-IX config from 128 s to 15 s. It also
makes the code significantly simpler.
 2010-02-17 22:11:42 +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 Filip
0efd646278 Define symbols as text between ''. 2010-02-10 12:30:14 +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 Filip
1960d20350 Priority for '||' and '&&' fixed. 2010-01-27 23:45:36 +01:00
Ondrej Filip
7515dafc00 Allow multiple || and && statements. 2010-01-27 22:26:45 +01:00
Ondrej Zajicek
63542845df Merge branch 'dev' into ospf3 
Conflicts:

	proto/ospf/lsreq.c
	proto/ospf/lsupd.c
	proto/ospf/rt.c
 2009-12-14 20:37:32 +01:00
Ondrej Zajicek
2eece54a04 Fixes bug related to reconfiguration with bgp_path first/last operators. 2009-11-15 14:24:20 +01:00
Ondrej Zajicek
3f22fa9e74 Merge branch 'dev' into ospf3 2009-11-09 22:54:39 +01:00
Ondrej Zajicek
4cdd078453 Implements protocol-specific router id and updates documentation. 2009-10-12 23:31:42 +02:00
Ondrej Zajicek
52b9b2a178 Rename as_path_get_last/as_path_get_first to be consistent. 2009-10-12 20:44:58 +02:00
Ondrej Zajicek
7ea5b00f42 First and last accessors to as_paths. 2009-10-08 15:23:24 +01:00
Ondrej Zajicek
54fe0d9230 Fixes setting of IP addresses to route attributes (NEXT_HOP). 2009-09-18 13:59:04 +02:00
Ondrej Zajicek
db96fccb31 Fixes bug in filter rta copy-on-write. 
Filters should try to copy-on-write just cached rtas.
 2009-09-18 01:11:09 +02:00
Ondrej Zajicek
f4c6ca8c9c Fixes preference bounds. 2009-09-17 13:35:37 +02:00
Ondrej Zajicek
05198c12f4 Some cleanups. 2009-08-27 19:01:04 +02:00
Ondrej Zajicek
b49e6f5a65 Temporary OSPFv3 development commit 2009-08-25 16:42:14 +02:00
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 Zajicek
23e563d86b Fixes buggy prefix ~ prefix matching. 2009-05-30 00:35:35 +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 Filip
43de796b8a Function pm_path_compare() checked just length of the bgpmasks 2009-05-29 23:04:54 +02:00
Ondrej Filip
d59405ec66 Typo in warning fixed. 2009-05-29 23:02:36 +02:00
Ondrej Filip
a6c9f0648d Missing boolean comparison added. 2009-05-28 13:37:04 +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
c60cdd8c39 Cleanup changes 2009-03-31 21:17:00 +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
cb53039271 Rate limit for most abundant log messages 2009-02-26 14:23:54 +01:00
Ondrej Zajicek
82ba9032be Fixes crash during some expressions 
Bird crashed when 'bgp_path.len' was used for routes that does
not came from BGP.
 2009-02-21 22:46:50 +01:00
Ondrej Zajicek
cd17c651a6 Add format for BGP_AGGREGATOR attribute 2009-02-21 17:47:56 +01:00
Ondrej Zajicek
f949163039 New syntax for bgp_path 2009-01-27 17:35:00 +01:00
Ondrej Zajicek
330aecead8 Bugfix in interpret 
Missing cases in filter code interpret leads to crash
when  bgp_next_hop attr was queried.
 2008-12-25 17:49:57 +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
44711e0ca2 Fix some bugs in filter interpret. 2008-11-16 22:16:04 +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
aebe06b40c Proper format functions for ORIGINATOR_ID, CLUSTER_LIST 2008-11-08 23:33:22 +01:00
Ondrej Zajicek
4847a894bf Implementation of route reflection for BGP 2008-10-26 22:45:09 +01:00
Ondrej Zajicek
11cb620266 Implementation of 4B ASN support for BGP 2008-10-26 22:36:08 +01:00
Martin Mares
9831e5916f Staticized lots of local functions. 2004-06-05 09:58:23 +00:00
Martin Mares
6ecd20605c ... and in the filter. 2004-06-05 09:26:55 +00:00
Martin Mares
6a57bb3110 Killed a couple of unused variables. 
We really should compile with warnings enabled.
 2004-05-31 20:57:38 +00:00
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
d85e1f0e2f Prefix comparison bug (hopefully) fixed. 2003-02-27 10:48:30 +00:00
Martin Mares
de10a974f2 Added missing semicolons. 2002-11-13 08:46:12 +00:00
Pavel Machek
4bb18dd2da Fix i_same for 'c' instruction. 2000-06-08 16:57:41 +00:00
Martin Mares
725270cb1d Fixes for the programmer's manual. 2000-06-08 12:37:21 +00:00
Pavel Machek
a5a947d4d8 Fixing error messages. 2000-06-08 10:26:19 +00:00
Pavel Machek
b178d92a0b Better messages 2000-06-08 08:24:32 +00:00
Pavel Machek
3e82b32d36 Progdocs updates 2000-06-07 14:45:55 +00:00
Pavel Machek
8dcf254499 Even better documentation of filters. 2000-06-07 14:16:11 +00:00
Pavel Machek
907503adb6 Comment fix. 2000-06-07 14:00:17 +00:00
Pavel Machek
771ae456a5 Better progdocs for filters 2000-06-07 13:54:06 +00:00
Martin Mares
2e9b24211a Spelling fixes to progdoc. 2000-06-07 12:29:08 +00:00
Pavel Machek
4c5f93d76b Better documentation. There are functions whose description is good when 
reading source but whose documentation does not belong to progdocs.
 2000-06-05 17:13:36 +00:00
Pavel Machek
8798c81176 Docs updates: 
make prog.dvi

do not overflow in .dvi

include filter documentation in the system
 2000-06-05 16:36:16 +00:00
Pavel Machek
98da26a0a0 Better error messages 2000-06-05 15:41:29 +00:00
Ondrej Filip
49222defff Bug in comment. It didn't compile. 2000-06-05 15:06:26 +00:00
Pavel Machek
b093c328f5 Updates to both programmers and users doc 2000-06-05 12:52:57 +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
Martin Mares
f7667ba1c4 When cloning a rte and replacing its rta, remember to free the old one 
so that we don't leak memory. Thanks go to the resource tracking system
for quickly discovering the source of leakages.
 2000-06-04 18:46:30 +00:00
Pavel Machek
64ba9f7bcc Do not try to divide by zero. 2000-06-02 08:01:12 +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