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isisd: Add function to fill in an SRv6 Locator TLV

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Add a function to fill in an SRv6 Locator TLV with information from an
SRv6 locator (RFC 9352 section #7.1).

Signed-off-by: Carmine Scarpitta <carmine.scarpitta@uniroma2.it>
This commit is contained in:
Carmine Scarpitta 2023-02-15 11:35:46 +01:00
parent 791ca51ecf
commit 6cd23c6d95
2 changed files with 27 additions and 0 deletions
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22
isisd/isis_srv6.c
View File

@ -20,6 +20,28 @@
/* Local variables and functions */
DEFINE_MTYPE_STATIC(ISISD, ISIS_SRV6_SID, "ISIS SRv6 Segment ID");
/**
* Fill in SRv6 Locator TLV with information from an SRv6 locator.
*
* @param loc SRv6 Locator configuration
* @param loc_tlv SRv6 Locator TLV to be updated
*/
void isis_srv6_locator2tlv(const struct isis_srv6_locator *loc,
struct isis_srv6_locator_tlv *loc_tlv)
{
/* Set SRv6 Locator metric */
loc_tlv->metric = loc->metric;
/* Set SRv6 Locator flags */
loc_tlv->flags = loc->flags;
/* Set SRv6 Locator algorithm */
loc_tlv->algorithm = loc->algorithm;
/* Set SRv6 Locator prefix */
loc_tlv->prefix = loc->prefix;
}
/**
* Unset the SRv6 locator for a given IS-IS area.
*

5
isisd/isis_srv6.h
View File

@ -12,6 +12,8 @@
#include "lib/srv6.h"
#include "isisd/isis_tlvs.h"
/* Maximum SRv6 SID Depths supported by the router */
#define SRV6_MAX_SEG_LEFT 3
#define SRV6_MAX_END_POP 3
@ -112,4 +114,7 @@ extern void isis_srv6_area_term(struct isis_area *area);
void isis_srv6_init(void);
void isis_srv6_term(void);
void isis_srv6_locator2tlv(const struct isis_srv6_locator *loc,
struct isis_srv6_locator_tlv *loc_tlv);
#endif /* _FRR_ISIS_SRV6_H */