From: Carmine Scarpitta <cscarpit@cisco.com>
Date: Sat, 23 Mar 2024 14:49:43 +0000 (+0100)
Subject: lib: Add ZAPI operation get SRv6 locator
X-Git-Tag: base_10.2~338^2~14
X-Git-Url: https://git.puffer.fish/?a=commitdiff_plain;h=ded79d7013f00a61b19e029a5104b453f696253a;p=mirror%2Ffrr.git

lib: Add ZAPI operation get SRv6 locator

Add a new ZAPI operation, ZEBRA_SRV6_MANAGER_GET_LOCATOR, which allows a
daemon to request information about a specific locator from the SRv6 SID
Manager.

Signed-off-by: Carmine Scarpitta <cscarpit@cisco.com>
---

diff --git a/lib/log.c b/lib/log.c
index 969ca79256..427e72703c 100644
--- a/lib/log.c
+++ b/lib/log.c
@@ -436,6 +436,7 @@ static const struct zebra_desc_table command_types[] = {
 	DESC_ENTRY(ZEBRA_SRV6_LOCATOR_DELETE),
 	DESC_ENTRY(ZEBRA_SRV6_MANAGER_GET_LOCATOR_CHUNK),
 	DESC_ENTRY(ZEBRA_SRV6_MANAGER_RELEASE_LOCATOR_CHUNK),
+	DESC_ENTRY(ZEBRA_SRV6_MANAGER_GET_LOCATOR),
 	DESC_ENTRY(ZEBRA_ERROR),
 	DESC_ENTRY(ZEBRA_CLIENT_CAPABILITIES),
 	DESC_ENTRY(ZEBRA_OPAQUE_MESSAGE),
diff --git a/lib/zclient.c b/lib/zclient.c
index 1aab7b48ba..90ec024155 100644
--- a/lib/zclient.c
+++ b/lib/zclient.c
@@ -3268,6 +3268,47 @@ int srv6_manager_release_locator_chunk(struct zclient *zclient,
 	return zclient_send_message(zclient);
 }
 
+/**
+ * Function to request a SRv6 locator in an asynchronous way
+ *
+ * @param zclient The zclient used to connect to SRv6 Manager (zebra)
+ * @param locator_name Name of SRv6 locator
+ * @return 0 on success, -1 otherwise
+ */
+int srv6_manager_get_locator(struct zclient *zclient, const char *locator_name)
+{
+	struct stream *s;
+	size_t len;
+
+	if (!locator_name)
+		return -1;
+
+	if (zclient->sock < 0) {
+		flog_err(EC_LIB_ZAPI_SOCKET, "%s: invalid zclient socket",
+			 __func__);
+		return -1;
+	}
+
+	if (zclient_debug)
+		zlog_debug("Getting SRv6 Locator %s", locator_name);
+
+	len = strlen(locator_name);
+
+	/* Send request */
+	s = zclient->obuf;
+	stream_reset(s);
+	zclient_create_header(s, ZEBRA_SRV6_MANAGER_GET_LOCATOR, VRF_DEFAULT);
+
+	/* Locator name */
+	stream_putw(s, len);
+	stream_put(s, locator_name, len);
+
+	/* Put length at the first point of the stream. */
+	stream_putw_at(s, 0, stream_get_endp(s));
+
+	return zclient_send_message(zclient);
+}
+
 /*
  * Asynchronous label chunk request
  *
diff --git a/lib/zclient.h b/lib/zclient.h
index 3759f94542..87617003d8 100644
--- a/lib/zclient.h
+++ b/lib/zclient.h
@@ -209,6 +209,7 @@ typedef enum {
 	ZEBRA_SRV6_LOCATOR_DELETE,
 	ZEBRA_SRV6_MANAGER_GET_LOCATOR_CHUNK,
 	ZEBRA_SRV6_MANAGER_RELEASE_LOCATOR_CHUNK,
+	ZEBRA_SRV6_MANAGER_GET_LOCATOR,
 	ZEBRA_ERROR,
 	ZEBRA_CLIENT_CAPABILITIES,
 	ZEBRA_OPAQUE_MESSAGE,
@@ -1074,6 +1075,8 @@ extern int srv6_manager_get_locator_chunk(struct zclient *zclient,
 					  const char *locator_name);
 extern int srv6_manager_release_locator_chunk(struct zclient *zclient,
 					      const char *locator_name);
+extern int srv6_manager_get_locator(struct zclient *zclient,
+				    const char *locator_name);
 
 extern enum zclient_send_status zebra_send_sr_policy(struct zclient *zclient,
 						     int cmd,