isisd: Add struct to store Sub-Sub-TLVs info

Add a data structure to store IS-IS Sub-Sub-TLVs information. At this
time, does not contain any Sub-Sub-TLV information because no
Sub-Sub-TLVs have been defined yet. This data structure will be extended
in future commits to store specific Sub-Sub-TLVs, as they become
supported.

Signed-off-by: Carmine Scarpitta <carmine.scarpitta@uniroma2.it>

diff --git a/isisd/isis_tlvs.h b/isisd/isis_tlvs.h
index 11f4f3fad7b8a1be64c845f4b30bc061341e97cd..501d2c4511269ff867c8f2d0b6d83ed10130b55f 100644 (file)
--- a/isisd/isis_tlvs.h
+++ b/isisd/isis_tlvs.h
@@ -393,6 +393,10 @@ struct isis_subtlvs {
        struct isis_item_list srv6_end_sids;
 };
 
+struct isis_subsubtlvs {
+       enum isis_tlv_context context;
+};
+
 enum isis_tlv_type {
        /* TLVs code point */
        ISIS_TLV_AREA_ADDRESSES = 1,