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68 Commits

Author SHA1 Message Date
Maria Matejka
0f68515263 Unsetting route attributes without messing with type system 2022-04-06 18:14:08 +02:00
Maria Matejka
63cf5d5d8c Eattr flags (originated and fresh) get their own struct fields 2022-04-06 18:14:08 +02:00
Maria Matejka
83d9920f90 Merge commit '5cff1d5f' into haugesund 
Conflicts:
      proto/bgp/attrs.c
      proto/pipe/pipe.c
 2022-03-09 10:56:06 +01:00
Maria Matejka
d071aca7aa Merge commit '2c13759136951ef0e70a3e3c2b2d3c9a387f7ed9' into haugesund 2022-03-02 10:01:44 +01:00
Alexander Zubkov
0e1fd7ea6a Filter: Add operators to find minimum and maximum element of sets 
Add operators .min and .max to find minumum or maximum element in sets
of types: clist, eclist, lclist. Example usage:

bgp_community.min
bgp_ext_community.max
filter(bgp_large_community, [(as1, as2, *)]).min

Signed-off-by: Alexander Zubkov <green@qrator.net>
 2021-12-28 04:07:09 +01:00
Alexander Zubkov
a2a268da4f Filter: Add operators to pick community components 
Add operators that can be used to pick components from
pair (standard community) or lc (large community) types.
For example:

(10, 20).asn --> 10
(10, 20).data --> 20

(10, 20, 30).asn --> 10
(10, 20, 30).data1 --> 20
(10, 20, 30).data2 --> 30

Signed-off-by: Alexander Zubkov <green@qrator.net>
 2021-12-28 04:07:00 +01:00
Maria Matejka
5cff1d5f02 Route: moved rte_src pointer from rta to rte 
It is an auxiliary key in the routing table, not a route attribute.
 2021-10-13 19:09:04 +02:00
Maria Matejka
eb937358c0 Preference moved to RTA and set explicitly in protocols 2021-10-13 19:09:04 +02:00
Maria Matejka
2c13759136 Reducing filter stack size to allow for lesser thread stack size 2021-09-10 18:11:28 +02:00
Trisha Biswas
e5468d1685 Filter: Add MPLS label route attribute 
Add support to set or read outgoing MPLS labels using filters. Currently
this supports the addition of one label per route for the first next hop.

Minor changes by committer.
 2021-05-17 17:50:04 +02:00
Ondrej Zajicek (work)
94abefc00b Filter: Update 'gw' to handle IPv6 link-local addresses 
When a link-local address is set, use the existing iface for scope.

Thanks to Marcel Krüger for the bugreport.
 2021-03-15 18:37:18 +01:00
Ondrej Zajicek (work)
d06a875b04 Filter: Recursive filter iteration code 
Add macros for recursive filter iteration that allows to examine
all instructions reachable from a filter.
 2021-02-07 19:21:42 +01:00
Ondrej Zajicek (work)
9e2635505a Filter: Fix return on top-level 
Broken detection of top-level case caused crash when return was called
from top-of-stack position. It should behave as reject/accept.

Thanks to Damian Zaremba for the bugreport.
 2020-12-28 15:23:28 +01:00
Ondrej Zajicek (work)
8cc5bb09e3 Filter: Add 'weight' route attribute 
Add 'weight' route attribute that allows to get and set ECMP weight of
nexthops. Similar to 'gw' attribute, it is limited to the first nexthop,
but it is useful for handling BGP multipath, where an ECMP route is
merged from multiple regular routes.
 2020-12-02 05:02:26 +01:00
Ondrej Zajicek (work)
ec430a7fee Nest: Implement BGP path mask loop operator 
Implement regex-like '+' operator in BGP path masks to match previous
path mask item multiple times. This is useful as ASNs may appear
multiple times in paths due to path prepending for traffic engineering
purposes.
 2020-05-18 16:25:08 +02:00
Ondrej Zajicek (work)
82bfee76f0 Filter: Remove quitbird command 
No need for this debug filter command and it can be abused from CLI.
 2020-05-02 02:47:18 +02:00
Maria Matejka
124d860f64 Filter: fixed omitted overflow check in EC constructor 2020-04-28 16:21:06 +02:00
Ondrej Zajicek (work)
ef8c45749c Filter: Fix typecheck for AND/OR. 
Do not apply dynamic type check for second argument of AND/OR, as it is
not evaluated immediately like regular argument would be.

Thanks to Mikael for the bugreport.
 2020-01-07 01:24:30 +01:00
Ondrej Zajicek (work)
dfb3eb7716 Filter: Fix function comparison 
Check the SYM_FLAG_SAME in new symbols. The old code checked that
in old symbols (f2).
 2019-12-10 18:53:16 +01:00
Ondrej Zajicek (work)
ff2ca10cba Filter: Add support for src/dst accessors for Flowspec and SADR 2019-12-09 04:23:01 +01:00
Ondrej Zajicek (work)
10c4cd9677 Filter: Add type info for more instructions 2019-11-05 15:30:20 +01:00
Ondrej Zajicek (work)
26194bd684 Filter: Improved parse-time typechecks 2019-11-05 15:28:47 +01:00
Ondrej Zajicek
6fbcd8914a Filter: Parse-time typechecks 
Most expressions can be type-validated in parse time. It is not
strong enough to eliminate runtime checks, but at least one gets
errors immediately during reconfigure.
 2019-11-05 15:28:47 +01:00
Maria Matejka
3f477ccb03 Filters: Function body comparison result now used. 
Function bodies were compared in post-parse time, yet the result was not
used and the functions were incorrectly considered the same as before.

Now the result is used to reload affected protocols.
 2019-09-23 14:03:26 +02:00
Ondrej Zajicek (work)
9f3e098320 Filter: Allow to use set constants / expressions in path masks 
Allow to not only use set literals in path masks, but also existing
set constants or set expressions.
 2019-08-06 18:54:19 +02:00
Maria Matejka
efd7c87b5b Filter: further split of print & die to FI_PRINT, FI_FLUSH and FI_DIE 2019-07-15 15:46:36 +02:00
Maria Matejka
f634adc7dc Filter: FID_MEMBER debug string is a C constant string 2019-07-15 15:17:04 +02:00
Maria Matejka
c0999a149c Filter: Converted FI_PRINT and FI_PATHMASK_CONSTRUCT to VARARG 2019-07-15 15:12:18 +02:00
Maria Matejka
0da06b7103 Filter: lots of documentation 2019-07-15 13:19:01 +02:00
Maria Matejka
1b9db6d4a7 Filter: Don't write out when re-evaluating filter for internal purposes. 2019-07-15 12:03:47 +02:00
Ondrej Zajicek (work)
bfa15a642f Filter: Minor cleanups 2019-07-10 16:47:17 +02:00
Maria Matejka
0206c070ac Filter: Split printing and dying 2019-07-03 08:27:56 +02:00
Maria Matejka
550a6488c9 Filter: documentation of the M4 preprocessor 2019-07-02 17:39:56 +02:00
Maria Matejka
b40c0f028f Filter: Pre-evaluation of constant expressions 2019-07-02 10:45:53 +02:00
Maria Matejka
30667d5041 Filter: Resolving of defined constants in config time 2019-07-01 14:12:05 +02:00
Maria Matejka
26bfe59f45 Filter: Moved singleton member definitions to f-inst.c 2019-07-01 13:13:06 +02:00
Maria Matejka
f74d19765e Filter: Getting rid of RESULT_OK. Adding RESULT_VOID. 
This is a preparation for filter pre-evaluation.
 2019-07-01 12:07:06 +02:00
Maria Matejka
63f49457dc Filter: renaming pointers for consistency 
The struct f_inst * is now always "what"
and the union member pointer is always "whati".
 2019-06-28 11:26:36 +02:00
Maria Matejka
2e0777317f Filter instructions don't confuse now v1 and res. 2019-06-21 11:33:28 +02:00
Maria Matejka
a84b8b6ebb Revert "Filter: Dropped the setter instructions in favor of direct result storage." 
This reverts commit bd91338246.
 2019-06-19 14:09:57 +02:00
Maria Matejka
bd91338246 Filter: Dropped the setter instructions in favor of direct result storage. 
This should help filter performance a bit.
 2019-06-03 10:41:35 +02:00
Maria Matejka
1757a6fce5 Filter: Stacks moved to thread-local storage if available. 2019-05-29 21:03:52 +02:00
Jan Maria Matejka
23e3b1e665 Filter: Some people can't pronounce "postfixify" correctly. Let's try "linearize" instead. 
This is just a naming change.
 2019-05-22 15:20:02 +00:00
Jan Maria Matejka
96d757c13f Filter: Store variables and function arguments on stack 2019-05-21 16:33:37 +00:00
Maria Matejka
fe503c7c06 Filter: fixed error-checking bug in !~ operator 2019-03-23 13:32:14 +01:00
Maria Matejka
8d65add626 Merge branch 'master' into HEAD 2019-03-18 12:54:40 +01:00
Maria Matejka
e1ac6f1e30 Faster filters: documentation on what is happening there 2019-03-06 15:01:39 +01:00
Maria Matejka
d1039926f5 Filter: Interpreter merged into the common m4 generator. 
The config-time partial evaluation of constant expressions in filters is nearby.
 2019-02-20 22:30:55 +01:00
Maria Matejka
32793ab685 Filter: Fixed bugs in FI_CALL and FI_SWITCH 2019-02-20 22:30:55 +01:00
Maria Matejka
ea4f55e3dc Filter: More cleanup -- customized structures also in struct f_line_item 2019-02-20 22:30:55 +01:00