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authorJosh Dorsey <jdorsey@netgate.com>2023-01-04 21:28:07 +0000
committerNeale Ranns <neale@graphiant.com>2023-01-12 02:17:37 +0000
commit6903da232304bc47fc82178bb6956e3613a9921c (patch)
tree8766d7ba8f0b5556742d935eaaa6e8367c19346e /src
parent058237e5811ab0b2d2ffb119228349737dea4a54 (diff)
abf: exclude networks with deny rules
Type: improvement Signed-off-by: Josh Dorsey <jdorsey@netgate.com> Change-Id: Iee43ca9278922fc7396764b88cff1a87bcb28349
Diffstat (limited to 'src')
-rw-r--r--src/plugins/abf/FEATURE.yaml7
-rw-r--r--src/plugins/abf/abf_itf_attach.c9
2 files changed, 10 insertions, 6 deletions
diff --git a/src/plugins/abf/FEATURE.yaml b/src/plugins/abf/FEATURE.yaml
index b9f3285daa3..7902dbe7800 100644
--- a/src/plugins/abf/FEATURE.yaml
+++ b/src/plugins/abf/FEATURE.yaml
@@ -1,9 +1,12 @@
---
name: ACL Based Forwarding
-maintainer: Neale Ranns <nranns@cisco.com>
+maintainer: Neale Ranns <neale@graphiant.com>
features:
- 'Policy Based Routing'
- - ACLs match traffic to be forwarded
+ - ACLs identify how traffic should be forwarded. Packets matching a permit
+ rule are forwarded using ABF policy. Packets matching a deny rule are
+ excluded from ABF handling and continue traversing the input feature arc on
+ the L3 path.
- Each rule in the ACL has an associated 'path' which determines how the
traffic will be forwarded. This path is described as a FIB path, so anything
possible with basic L3 forwarding is possible with ABF (with the exception
diff --git a/src/plugins/abf/abf_itf_attach.c b/src/plugins/abf/abf_itf_attach.c
index 6f85ff69ae6..a14717e1999 100644
--- a/src/plugins/abf/abf_itf_attach.c
+++ b/src/plugins/abf/abf_itf_attach.c
@@ -567,10 +567,11 @@ abf_input_inline (vlib_main_t * vm,
(FIB_PROTOCOL_IP6 == fproto), 1, 0,
&fa_5tuple0);
- if (acl_plugin_match_5tuple_inline
- (acl_plugin.p_acl_main, lc_index, &fa_5tuple0,
- (FIB_PROTOCOL_IP6 == fproto), &action, &match_acl_pos,
- &match_acl_index, &match_rule_index, &trace_bitmap))
+ if (acl_plugin_match_5tuple_inline (
+ acl_plugin.p_acl_main, lc_index, &fa_5tuple0,
+ (FIB_PROTOCOL_IP6 == fproto), &action, &match_acl_pos,
+ &match_acl_index, &match_rule_index, &trace_bitmap) &&
+ action > 0)
{
/*
* match: