Commit graph

16 commits

Author SHA1 Message Date
Ondrej Zajicek (work)
14fc24f3a5 Trie: Implement longest-prefix-match queries and walks
The prefix trie now supports longest-prefix-match query by function
trie_match_longest_ipX() and it can be extended to iteration over all
covering prefixes for a given prefix (from longest to shortest) using
TRIE_WALK_TO_ROOT_IPx() macro.
2021-11-26 03:26:36 +01:00
Ondrej Zajicek (work)
062e69bf52 Trie: Implement trie walking code
Trie walking allows enumeration of prefixes in a trie in the usual
lexicographic order. Optionally, trie enumeration can be restricted
to a chosen subnet (and its descendants).
2021-11-19 18:04:32 +01:00
Ondrej Zajicek (work)
13225f1dbf Filter: Faster prefix sets
Use 16-way (4bit) branching in prefix trie instead of basic binary
branching. The change makes IPv4 prefix sets almost 3x faster, but
with more memory consumption and much more complicated algorithm.

Together with a previous filter change, it makes IPv4 prefix sets
about ~4.3x faster and slightly smaller (on my test data).
2021-09-25 16:06:43 +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)
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)
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
Maria Matejka
fd9f0c0640 Configuration strings are constant.
This is merely a const propagation. There was no problem in there.
2020-04-09 15:37:14 +02:00
Ondrej Zajicek (work)
2755002890 Filter: Optimize IPv4 prefix sets
Use separate IPv4 and IPv6 implementation of prefix sets. Just this
change makes IPv4 prefix sets 60% smaller and 50% faster.
2020-03-26 03:57:48 +01:00
Ondrej Zajicek (work)
87512e9751 Filter: Improve typecheck error messages 2019-11-05 15:30:16 +01:00
Ondrej Zajicek (work)
0edf0c8cd9 Support for address family constants
We already had them defined on BGP level, but they are more general.
2019-11-03 22:25:44 +01:00
Maria Matejka
b40c0f028f Filter: Pre-evaluation of constant expressions 2019-07-02 10:45:53 +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
Jan Maria Matejka
96d757c13f Filter: Store variables and function arguments on stack 2019-05-21 16:33:37 +00:00
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
Renamed from filter/f-util.h (Browse further)