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62 commits

Author SHA1 Message Date
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
Maria Matejka 0b39b1cbb7 Conf: Symbol implementation converted from void pointers to union 
... and consted some declarations.
 2019-02-20 22:30:55 +01:00
Maria Matejka 132529ce89 Filter: merged filter compare functions into common M4 file 2019-02-20 22:30:55 +01:00
Maria Matejka dd4d409551 Filter: Merged postfixify routine 2019-02-20 22:30:54 +01:00
Maria Matejka 5289304519 Filter data manipulation functions separated to their file 2019-02-20 22:30:54 +01:00
Maria Matejka 4f082dfa89 Filter: merged filter instruction constructors, counting line size on instruction construct 2019-02-20 22:30:54 +01:00
Maria Matejka c0e958e022 Filter + Config: Fix bugs, tests and split symbols by type 2019-02-20 22:30:54 +01:00