Fix MRP SessionIdleInterval per spec to 500ms (#32124)

* Fix MRP SessionIdleInterval per spec to 500ms Spec has the default SESSION_IDLE_INTERVAL defined as 500ms https://github.com/CHIP-Specifications/connectedhomeip-spec/blob/1.2/src/secure_channel/Message_Reliability_MRP.adoc#8-parameters-and-constants Originally defined as 300ms, this change was introduced as part of spec PR CHIP-Specifications/connectedhomeip-spec#7186 * Update Sleepy -> Session in context of active/idle intervals Reflecting the spec update CHIP-Specifications/connectedhomeip-spec#7186
project-chip · Feb 14, 2024 · 42a1c72 · 42a1c72
1 parent d465691
commit 42a1c72
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Showing 9 changed files with 16 additions and 16 deletions.
diff --git a/src/app/tests/suites/TestDiscovery.yaml b/src/app/tests/suites/TestDiscovery.yaml
@@ -203,7 +203,7 @@ tests:
               - name: "productId"
                 value: productId
 
-    - label: "Optional TXT key for MRP Sleepy Idle Interval (SII)"
+    - label: "Optional TXT key for MRP Session Idle Interval (SII)"
       PICS: MCORE.SC.SII_COMM_DISCOVERY_KEY
       cluster: "DiscoveryCommands"
       command: "FindCommissionable"
@@ -214,7 +214,7 @@ tests:
                     minValue: 0
                     maxValue: 3600000
 
-    - label: "Optional TXT key for MRP Sleepy Active Interval (SAI)"
+    - label: "Optional TXT key for MRP Session Active Interval (SAI)"
       PICS: MCORE.SC.SAI_COMM_DISCOVERY_KEY
       cluster: "DiscoveryCommands"
       command: "FindCommissionable"

diff --git a/src/app/tests/suites/certification/Test_TC_SC_3_3.yaml b/src/app/tests/suites/certification/Test_TC_SC_3_3.yaml
@@ -99,8 +99,8 @@ tests:
           responderSessionID is of uint16
            sigma2ResumeMIC is of Octet String maximum of length 16 bytes
           responderSEDParams is from any one of the following:
-                SLEEPY_IDLE_INTERVAL - Verify that it is of uint32
-                SLEEPY_ACTIVE_INTERVAL - Verify that it is of uint32
+                SESSION_IDLE_INTERVAL - Verify that it is of uint32
+                SESSION_ACTIVE_INTERVAL - Verify that it is of uint32
 
 
           [1683973658.044236][21637:21637] CHIP:EM: Rxd Ack; Removing MessageCounter:113416101 from Retrans Table on exchange 32995r

diff --git a/src/app/tests/suites/certification/Test_TC_SC_4_10.yaml b/src/app/tests/suites/certification/Test_TC_SC_4_10.yaml
@@ -42,7 +42,7 @@ tests:
       verification: |
           avahi-browse -rt _matter._tcp
           On the TH(Chip-tool) Log: Verify the DUT is advertising for:
-          -SII key is higher than the SLEEPY_IDLE_INTERVAL default value (> 300 milliseconds)
+          - SII key is higher than the SESSION_IDLE_INTERVAL default value (> 500 milliseconds)
           - SII key and SAI key is less than 3600000 (1hour in milliseconds)
 
           +   eth0 IPv6 3A235FF3FA2DAC10-0000000000000055             _matter._tcp         local

diff --git a/src/lib/dnssd/Types.h b/src/lib/dnssd/Types.h
@@ -112,7 +112,7 @@ struct CommonResolutionData
 
     bool IsDeviceTreatedAsSleepy(const ReliableMessageProtocolConfig * defaultMRPConfig) const
     {
-        // If either sleepy interval (Idle - SII, Active - SAI) has a value and that value is greater
+        // If either session interval (Idle - SII, Active - SAI) has a value and that value is greater
         // than the value passed to this function, then the peer device will be treated as if it is
         // a Sleepy End Device (SED)
         return (mrpRetryIntervalIdle.HasValue() && (mrpRetryIntervalIdle.Value() > defaultMRPConfig->mIdleRetransTimeout)) ||

diff --git a/src/lib/dnssd/tests/TestIncrementalResolve.cpp b/src/lib/dnssd/tests/TestIncrementalResolve.cpp
@@ -294,7 +294,7 @@ void TestParseOperational(nlTestSuite * inSuite, void * inContext)
     {
         const char * entries[] = {
             "foo=bar", // unused data
-            "SII=23"   // sleepy idle interval
+            "SII=23"   // session idle interval
         };
 
         CallOnRecord(inSuite, resolver, TxtResourceRecord(kTestOperationalName.Full(), entries));
@@ -369,7 +369,7 @@ void TestParseCommissionable(nlTestSuite * inSuite, void * inContext)
     {
         const char * entries[] = {
             "some", "foo=bar", "x=y=z", "a=", // unused data
-            "SII=123"                         // Sleepy idle interval
+            "SII=123"                         // session idle interval
         };
 
         CallOnRecord(inSuite, resolver, TxtResourceRecord(kTestHostName.Full(), entries));
@@ -381,7 +381,7 @@ void TestParseCommissionable(nlTestSuite * inSuite, void * inContext)
     {
         const char * entries[] = {
             "foo=bar",    // unused data
-            "SAI=321",    // sleepy active interval
+            "SAI=321",    // session active interval
             "D=22345",    // Long discriminator
             "VP=321+654", // VendorProduct
             "DN=mytest"   // Device name

diff --git a/src/messaging/ReliableMessageProtocolConfig.cpp b/src/messaging/ReliableMessageProtocolConfig.cpp
@@ -60,8 +60,8 @@ void ClearLocalMRPConfigOverride()
 
 ReliableMessageProtocolConfig GetDefaultMRPConfig()
 {
-    // Default MRP intervals are defined in spec <2.11.3. Parameters and Constants>
-    static constexpr const System::Clock::Milliseconds32 idleRetransTimeout   = 300_ms32;
+    // Default MRP intervals are defined in spec <4.12.8. Parameters and Constants>
+    static constexpr const System::Clock::Milliseconds32 idleRetransTimeout   = 500_ms32;
     static constexpr const System::Clock::Milliseconds32 activeRetransTimeout = 300_ms32;
     static constexpr const System::Clock::Milliseconds16 activeThresholdTime  = 4000_ms16;
     return ReliableMessageProtocolConfig(idleRetransTimeout, activeRetransTimeout, activeThresholdTime);

diff --git a/src/messaging/ReliableMessageProtocolConfig.h b/src/messaging/ReliableMessageProtocolConfig.h
@@ -45,7 +45,7 @@ namespace chip {
  *  timeout when it sends a message to the present node and the present node is
  *  perceived by the peer as active.
  *
- *  This value is announced to the peer using SAI (Sleepy Active Interval) key
+ *  This value is announced to the peer using SAI (Session Active Interval) key
  *  in the advertised DNS Service Discovery TXT records. Additionally, it is
  *  exchanged in the initial phase of the PASE/CASE session establishment.
  *
@@ -84,7 +84,7 @@ namespace chip {
 #if CHIP_ENABLE_OPENTHREAD && !CHIP_DEVICE_LAYER_TARGET_LINUX
 #define CHIP_CONFIG_MRP_LOCAL_IDLE_RETRY_INTERVAL (800_ms32)
 #else
-#define CHIP_CONFIG_MRP_LOCAL_IDLE_RETRY_INTERVAL (300_ms32)
+#define CHIP_CONFIG_MRP_LOCAL_IDLE_RETRY_INTERVAL (500_ms32)
 #endif
 #endif // CHIP_CONFIG_MRP_LOCAL_IDLE_RETRY_INTERVAL && !CHIP_DEVICE_LAYER_TARGET_LINUX
 

diff --git a/src/messaging/tests/MessagingContext.h b/src/messaging/tests/MessagingContext.h
@@ -78,7 +78,7 @@ class MessagingContext : public PlatformMemoryUser
     enum MRPMode
     {
         kDefault = 1, // This adopts the default MRP values for idle/active as per the spec.
-                      //      i.e IDLE = 4s, ACTIVE = 300ms
+                      //      i.e IDLE = 500ms, ACTIVE = 300ms
 
         kResponsive = 2, // This adopts values that are better suited for loopback tests that
                          // don't actually go over a network interface, and are tuned much lower

diff --git a/src/protocols/secure_channel/RendezvousParameters.h b/src/protocols/secure_channel/RendezvousParameters.h
@@ -32,8 +32,8 @@ namespace chip {
 // The largest supported value for Rendezvous discriminators
 const uint16_t kMaxRendezvousDiscriminatorValue = 0xFFF;
 
-// The largest supported value for sleepy idle interval and sleepy active interval
-inline constexpr uint32_t kMaxSleepyInterval = 3600000;
+// The largest supported value for session idle interval and session active interval
+inline constexpr uint32_t kMaxSessionIdleInterval = 3600000;
 
 class RendezvousParameters
 {