diff options
| author |   Dan Geist <dan@polter.net> | 2024-03-13 11:24:05 -0400 |
|---|---|---|
| committer |   Ole Tr�an <otroan@employees.org> | 2024-04-02 06:56:04 +0000 |
| commit | e53e29684151330811777135be2d62a564e3664d (patch) | |
| tree | b6ffcb4079b98c674a25b3041328f8810938fce5 /src/plugins/map/ip6_map_t.c | |
| parent | 3a0d7d2c95e8b8087c20b99fed5bcf62fac027d9 (diff) | |
map: BR rule lookup update
Update to the MAP rule lookup (in IPv6) based on the rule's source
prefix instead of DMR
Type: improvement
Per RFC, the DMR is allowed to serve multiple MAP Basic Mapping Rules, but this
capability was prevented by the above logic.
Updates to the code include populating a new hash table based on the MAP rule
ip6 prefix and length, changing several functions to reference this new table,
and slight alterations to a few functions regarding pre-lookup bitmasking.
All changes are commented with [dgeist] and are in need of peer review,
especially the bitmask alterations.
An attempt was made at generating an additonal MAP rule in the test_map_br test
harness, but the coding appears very much oriented towards testing just one
rule. I would appreciate suggestions on how to test multi-rule cases.
Issue: VPP-2111
Change-Id: Id1fea280eba625e23cd893575d9b63aac7f48405
Signed-off-by: Dan Geist <dan@polter.net>
Diffstat (limited to 'src/plugins/map/ip6_map_t.c')
| -rw-r--r-- | src/plugins/map/ip6_map_t.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/src/plugins/map/ip6_map_t.c b/src/plugins/map/ip6_map_t.c index 6bfc8e0f952..51853d619e6 100644 --- a/src/plugins/map/ip6_map_t.c +++ b/src/plugins/map/ip6_map_t.c @@ -529,7 +529,10 @@ ip6_map_t (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) ip60 = vlib_buffer_get_current (p0); d0 = - ip6_map_get_domain (&ip60->dst_address, + /* Originally using the IPv6 dest for rule lookup, now source + * [dgeist] ip6_map_get_domain (&ip60->dst_address, + */ + ip6_map_get_domain (&ip60->src_address, &vnet_buffer (p0)->map_t.map_domain_index, &error0); if (!d0) |