Hello folks,
In old router plugin it was done with the following snippet:
```
#include <vnet/osi/osi.h>
...
osi_register_input_protocol (OSI_PROTOCOL_isis, im->tx_node_index);
```
So, I'd give it a try to register this protocol for `lip_punt_node`
(`lcp_router_init` seems quite suitable). Something like this:
diff --git a/src/plugins/linux-cp/lcp.h b/src/plugins/linux-cp/lcp.h
index 4ddaa3898..51f6b1b3e 100644
--- a/src/plugins/linux-cp/lcp.h
+++ b/src/plugins/linux-cp/lcp.h
@@ -52,6 +52,8 @@ u8 lcp_get_del_static_on_link_down (void);
void lcp_set_del_dynamic_on_link_down (u8 is_del);
u8 lcp_get_del_dynamic_on_link_down (void);
+extern vlib_node_registration_t lip_punt_node;
+
#endif
/*
diff --git a/src/plugins/linux-cp/lcp_router.c
b/src/plugins/linux-cp/lcp_router.c
index 3534b597e..1f2c126d9 100644
--- a/src/plugins/linux-cp/lcp_router.c
+++ b/src/plugins/linux-cp/lcp_router.c
@@ -37,6 +37,7 @@
#include <vnet/ip/ip6_link.h>
#include "lcp_nl_evpn.h"
+#include "vnet/osi/osi.h"
typedef struct lcp_router_table_t_
{
@@ -1416,6 +1417,8 @@ lcp_router_init (vlib_main_t *vm)
lcp_rt_fib_src_dynamic = fib_source_allocate (
"lcp-rt-dynamic", FIB_SOURCE_PRIORITY_HI + 1, FIB_SOURCE_BH_API);
+ osi_register_input_protocol( OSI_PROTOCOL_isis, lip_punt_node.index);
+
return (NULL);
}
It compiles, but I haven't checked anything since I'm too lazy to configure
ISIS.
On Mon, 23 Jan 2023 at 18:14, Pim van Pelt via lists.fd.io <pim=
ipng...@lists.fd.io> wrote:
> Hoi,
>
> I would suggest not matching (only) MAC but (foremost) the ethertype, and
> then punting those packets into the TAP, take a look at VLIB_REGISTER_NODE
> (lip_punt_node) in src/plugins/linux-cp/lcp_node.c, contributions are
> welcome.
>
> groet,
> Pim
>
> On Mon, Jan 23, 2023 at 6:06 PM <agv...@gmail.com> wrote:
>
>> Hoi Pim,
>>
>> As for distinguishing IS-IS packets, I think that should not be really
>> difficult, it's just all the packets with specific DST MACs:
>> 09:00:2b:00:00:05, 09:00:2b:00:00:14,09:00:2b:00:00:15.
>> It's hard to imagine situation when they are needed to be processed by
>> DataPlane.
>>
>>
>>
>
> --
> Pim van Pelt <p...@ipng.nl>
> PBVP1-RIPE - http://www.ipng.nl/
>
>
>
>
--
Best regards
Stanislav Zaikin
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