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isisd: Add SRv6 Locator TLV data structure

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Add a data structure to represent an SRv6 Locator TLV as per RFC 9352
section #7.1.

Signed-off-by: Carmine Scarpitta <carmine.scarpitta@uniroma2.it>
This commit is contained in:
Carmine Scarpitta 2023-02-22 00:03:49 +01:00
parent 150d3d3a02
commit 911ec6b474
1 changed files with 18 additions and 0 deletions
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18
isisd/isis_tlvs.h
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@ -193,6 +193,23 @@ struct isis_router_cap_fad {
}; };
#endif /* ifndef FABRICD */ #endif /* ifndef FABRICD */
/* RFC 9352 section 7.1 */
struct isis_srv6_locator_tlv {
struct isis_srv6_locator_tlv *next;
uint32_t metric;
uint8_t flags;
#define ISIS_TLV_SRV6_LOCATOR_FLAG_D 1 << 7
uint8_t algorithm;
struct prefix_ipv6 prefix;
struct isis_subtlvs *subtlvs;
};
#define ISIS_SRV6_LOCATOR_HDR_SIZE 22
/* Maximum SRv6 SID Depths (MSD) as per RFC 9352 section #4 */ /* Maximum SRv6 SID Depths (MSD) as per RFC 9352 section #4 */
struct isis_srv6_msd { struct isis_srv6_msd {
/* RFC 9352 section #4.1 */ /* RFC 9352 section #4.1 */
@ -338,6 +355,7 @@ struct isis_tlvs {
struct isis_threeway_adj *threeway_adj; struct isis_threeway_adj *threeway_adj;
struct isis_router_cap *router_cap; struct isis_router_cap *router_cap;
struct isis_spine_leaf *spine_leaf; struct isis_spine_leaf *spine_leaf;
struct isis_mt_item_list srv6_locator;
}; };
enum isis_tlv_context { enum isis_tlv_context {