commit 08e5168bddf019391b323aa5728acb76afbddeff
author Abtin Keshavarzian <abtink@google.com> Mon May 09 20:26:57 2022 -0700
committer GitHub <noreply@github.com> Mon May 09 20:26:57 2022 -0700
tree 637a48de60a192a184d823743c8147f9acffca05
parent 5b1a3189ce6db6620c89cc1c4466f32cf1ba5f7f

[routing-manager] add new config for `MAX_DISCOVERED_PREFIXES` (#7656)

src/core/border_router/routing_manager.hpp

diff --git a/src/core/border_router/routing_manager.hpp b/src/core/border_router/routing_manager.hpp
index 1ababf2..84d6bc3 100644
--- a/src/core/border_router/routing_manager.hpp
+++ b/src/core/border_router/routing_manager.hpp
@@ -194,7 +194,7 @@
     static constexpr uint8_t kMaxOmrPrefixNum = OPENTHREAD_CONFIG_IP6_SLAAC_NUM_ADDRESSES;
 
     // The maximum number of prefixes to discover on the infra link.
-    static constexpr uint8_t kMaxDiscoveredPrefixNum = 8;
+    static constexpr uint8_t kMaxDiscoveredPrefixNum = OPENTHREAD_CONFIG_BORDER_ROUTING_MAX_DISCOVERED_PREFIXES;
 
     static constexpr uint8_t kOmrPrefixLength    = OT_IP6_PREFIX_BITSIZE; // The length of an OMR prefix. In bits.
     static constexpr uint8_t kOnLinkPrefixLength = OT_IP6_PREFIX_BITSIZE; // The length of an On-link prefix. In bits.

src/core/config/border_router.h

diff --git a/src/core/config/border_router.h b/src/core/config/border_router.h
index 18b4d33..5e45b38 100644
--- a/src/core/config/border_router.h
+++ b/src/core/config/border_router.h
@@ -66,6 +66,16 @@
 #endif
 
 /**
+ * @def OPENTHREAD_CONFIG_BORDER_ROUTING_MAX_DISCOVERED_PREFIXES
+ *
+ * Specifies maximum number of discovered prefixes (on-link prefixes on the infra link) maintained by routing manager.
+ *
+ */
+#ifndef OPENTHREAD_CONFIG_BORDER_ROUTING_MAX_DISCOVERED_PREFIXES
+#define OPENTHREAD_CONFIG_BORDER_ROUTING_MAX_DISCOVERED_PREFIXES 8
+#endif
+
+/**
  * @def OPENTHREAD_CONFIG_BORDER_ROUTING_VICARIOUS_RS_ENABLE
  *
  * Define to 1 to enable Border Routing Vicarious Router Solicitation.