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[dhcp6-pd-client] allow custom values for kMinPreferredLifetime and kMaxPreferredLifetime (#12054)

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This commit is contained in:
tanyanquan
2025-10-22 16:18:20 +08:00
committed by GitHub
parent 6469b1e816
commit 36b14d3ef7
2 changed files with 25 additions and 2 deletions
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src/core/border_router/dhcp6_pd_client.hpp
+4 -2
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@@ -141,13 +141,15 @@ private:
static constexpr uint32_t kJitterDivisor = 10;
// The constants below are in seconds
static constexpr uint32_t kMinPreferredLifetime = 30 * Time::kOneMinuteInSec;
static constexpr uint32_t kMaxPreferredLifetime = 4 * Time::kOneHourInSec;
static constexpr uint32_t kMinPreferredLifetime = OPENTHREAD_CONFIG_BORDER_ROUTING_DHCP6_PD_CLIENT_MIN_LIFETIME;
static constexpr uint32_t kMaxPreferredLifetime = OPENTHREAD_CONFIG_BORDER_ROUTING_DHCP6_PD_CLIENT_MAX_LIFETIME;
static constexpr uint32_t kMaxValidMarginAfterPreferredLifetime = 2 * Time::kOneMinuteInSec;
static constexpr uint32_t kMinT1 = 5 * Time::kOneMinuteInSec;
static constexpr uint32_t kMinT1MarginBeforePreferredLifetime = 15 * Time::kOneMinuteInSec;
static constexpr uint32_t kMinT2MarginBeforePreferredLifetime = 6 * Time::kOneMinuteInSec;
static_assert(kMaxPreferredLifetime > kMinPreferredLifetime, "invalid min/max values for preferred lifetime");
// Default T1 and T2 as 0.5 and 0.8 times the preferred lifetime
// if they are zero (represented as 5/10 and 8/10).
static constexpr uint32_t kDefaultT1FactorNumerator = 5;
src/core/config/border_routing.h
+21
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@@ -218,6 +218,27 @@
#define OPENTHREAD_CONFIG_BORDER_ROUTING_DHCP6_PD_CLIENT_ENABLE 0
#endif
/**
* @def OPENTHREAD_CONFIG_BORDER_ROUTING_DHCP6_PD_CLIENT_MIN_LIFETIME
*
* This parameter sets the minimum preferred lifetime (in seconds) for the Border Router's built-in OpenThread
* DHCPv6 Prefix Delegation (PD) client feature. The default value is suggested based on:
* https://datatracker.ietf.org/doc/draft-ietf-snac-simple/.
*/
#ifndef OPENTHREAD_CONFIG_BORDER_ROUTING_DHCP6_PD_CLIENT_MIN_LIFETIME
#define OPENTHREAD_CONFIG_BORDER_ROUTING_DHCP6_PD_CLIENT_MIN_LIFETIME (30 * 60)
#endif
/**
* @def OPENTHREAD_CONFIG_BORDER_ROUTING_DHCP6_PD_CLIENT_MAX_LIFETIME
*
* This parameter sets the maximum preferred lifetime (in seconds) for the Border Router's built-in OpenThread
* DHCPv6 Prefix Delegation (PD) client feature.
*/
#ifndef OPENTHREAD_CONFIG_BORDER_ROUTING_DHCP6_PD_CLIENT_MAX_LIFETIME
#define OPENTHREAD_CONFIG_BORDER_ROUTING_DHCP6_PD_CLIENT_MAX_LIFETIME (4 * 60 * 60)
#endif
/**
* @def OPENTHREAD_CONFIG_BORDER_ROUTING_TESTING_API_ENABLE
*