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isisd: Add support for SRv6 MSDs

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Add Maximum SRv6 SID Depths (MSDs) parameters as per RFC 9352 section #4
to the per-area IS-IS SRv6 Data Base. Currently the MSD values are
hardcoded.

Signed-off-by: Carmine Scarpitta <carmine.scarpitta@uniroma2.it>
This commit is contained in:
Carmine Scarpitta 2023-01-18 12:21:16 +01:00
parent 5e21aaf1e7
commit 340fdf6a80
2 changed files with 23 additions and 0 deletions
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5
isisd/isis_srv6.c
View File

@ -34,6 +34,11 @@ void isis_srv6_area_init(struct isis_area *area)
/* Pull defaults from the YANG module */
srv6db->config.enabled = yang_get_default_bool("%s/enabled", ISIS_SRV6);
srv6db->config.max_seg_left_msd = SRV6_MAX_SEG_LEFT;
srv6db->config.max_end_pop_msd = SRV6_MAX_END_POP;
srv6db->config.max_h_encaps_msd = SRV6_MAX_H_ENCAPS;
srv6db->config.max_end_d_msd = SRV6_MAX_END_D;
}
/**

18
isisd/isis_srv6.h
View File

@ -10,6 +10,12 @@
#ifndef _FRR_ISIS_SRV6_H
#define _FRR_ISIS_SRV6_H
/* Maximum SRv6 SID Depths supported by the router */
#define SRV6_MAX_SEG_LEFT 3
#define SRV6_MAX_END_POP 3
#define SRV6_MAX_H_ENCAPS 2
#define SRV6_MAX_END_D 5
/* Per-area IS-IS SRv6 Data Base (SRv6 DB) */
struct isis_srv6_db {
@ -17,6 +23,18 @@ struct isis_srv6_db {
struct {
/* Administrative status of SRv6 */
bool enabled;
/* Maximum Segments Left Depth supported by the router */
uint8_t max_seg_left_msd;
/* Maximum Maximum End Pop Depth supported by the router */
uint8_t max_end_pop_msd;
/* Maximum H.Encaps supported by the router */
uint8_t max_h_encaps_msd;
/* Maximum End D MSD supported by the router */
uint8_t max_end_d_msd;
} config;
};