From: Carmine Scarpitta <carmine.scarpitta@uniroma2.it>
Date: Tue, 13 Jun 2023 11:09:57 +0000 (+0200)
Subject: isisd: Remove SRv6 End SIDs after locator unset
X-Git-Tag: base_9.1~88^2~97
X-Git-Url: https://git.puffer.fish/?a=commitdiff_plain;h=95af6c11c8e97281f8939843027f348af15c6664;p=mirror%2Ffrr.git

isisd: Remove SRv6 End SIDs after locator unset

When an SRv6 locator is unset, remove all the SRv6 End SIDs allocated
from that locator.

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

diff --git a/isisd/isis_srv6.c b/isisd/isis_srv6.c
index 294056416d..588a8fdd40 100644
--- a/isisd/isis_srv6.c
+++ b/isisd/isis_srv6.c
@@ -32,6 +32,7 @@ bool isis_srv6_locator_unset(struct isis_area *area)
 	int ret;
 	struct listnode *node, *nnode;
 	struct srv6_locator_chunk *chunk;
+	struct isis_srv6_sid *sid;
 
 	if (strncmp(area->srv6db.config.srv6_locator_name, "",
 		    sizeof(area->srv6db.config.srv6_locator_name)) == 0) {
@@ -39,6 +40,21 @@ bool isis_srv6_locator_unset(struct isis_area *area)
 		return true;
 	}
 
+	/* Delete SRv6 SIDs */
+	for (ALL_LIST_ELEMENTS(area->srv6db.srv6_sids, node, nnode, sid)) {
+		sr_debug(
+			"Deleting SRv6 SID (locator %s, sid %pI6) from IS-IS area %s",
+			area->srv6db.config.srv6_locator_name, &sid->sid,
+			area->area_tag);
+
+		/* Uninstall the SRv6 SID from the forwarding plane through
+		 * Zebra */
+		isis_zebra_srv6_sid_uninstall(area, sid);
+
+		listnode_delete(area->srv6db.srv6_sids, sid);
+		isis_srv6_sid_free(sid);
+	}
+
 	/* Inform Zebra that we are releasing the SRv6 locator */
 	ret = isis_zebra_srv6_manager_release_locator_chunk(
 		area->srv6db.config.srv6_locator_name);