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isisd: Request SRv6 locator after zebra connection (backport #18178) #18179

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merged 2 commits into from
Feb 16, 2025
Merged

isisd: Request SRv6 locator after zebra connection (backport #18178) #18179

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5de0b8d
isisd: Add helper function to request SRv6 locator information
cscarpitta Feb 15, 2025
c4ef0e3
isisd: Request SRv6 locator after zebra connection
cscarpitta Feb 15, 2025
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21 changes: 21 additions & 0 deletions isisd/isis_srv6.c
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Original file line number Diff line number Diff line change
Expand Up @@ -657,6 +657,27 @@ int isis_srv6_ifp_up_notify(struct interface *ifp)
return 0;
}

/**
* Request SRv6 locator info from the SID Manager for all IS-IS areas where SRv6
* is enabled and a locator has been configured.
* This function is called as soon as the connection with Zebra is established
* to get information about all configured locators.
*/
void isis_srv6_locators_request(void)
{
struct isis *isis = isis_lookup_by_vrfid(VRF_DEFAULT);
struct listnode *node;
struct isis_area *area;

if (!isis)
return;

for (ALL_LIST_ELEMENTS_RO(isis->area_list, node, area))
if (area->srv6db.config.enabled &&
area->srv6db.config.srv6_locator_name[0] != '\0' && !area->srv6db.srv6_locator)
isis_zebra_srv6_manager_get_locator(area->srv6db.config.srv6_locator_name);
}

/**
* IS-IS SRv6 initialization for given area.
*
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2 changes: 2 additions & 0 deletions isisd/isis_srv6.h
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Expand Up @@ -155,6 +155,8 @@ isis_srv6_sid_alloc(struct isis_area *area, struct srv6_locator *locator,
struct in6_addr *sid_value);
extern void isis_srv6_sid_free(struct isis_srv6_sid *sid);

void isis_srv6_locators_request(void);

extern void isis_srv6_area_init(struct isis_area *area);
extern void isis_srv6_area_term(struct isis_area *area);

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1 change: 1 addition & 0 deletions isisd/isis_zebra.c
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Expand Up @@ -805,6 +805,7 @@ static void isis_zebra_connected(struct zclient *zclient)
zclient_register_opaque(zclient, LDP_IGP_SYNC_IF_STATE_UPDATE);
zclient_register_opaque(zclient, LDP_IGP_SYNC_ANNOUNCE_UPDATE);
bfd_client_sendmsg(zclient, ZEBRA_BFD_CLIENT_REGISTER, VRF_DEFAULT);
isis_srv6_locators_request();
}

/**
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