[Telink] Read certificate declaration from storage (#25072)

When CONFIG_CHIP_CERTIFICATION_DECLARATION_STORAGE is enabled read certificate declaration (CD) from storage instead of using default. Signed-off-by: Maciej Bojczuk <maciej.bojczuk@telink-semi.com>
project-chip · Feb 21, 2024 · 831a4f3 · 831a4f3
1 parent 4be1147
commit 831a4f3
Show file tree

Hide file tree

Showing 4 changed files with 13 additions and 8 deletions.
diff --git a/examples/lighting-app/telink/prj.conf b/examples/lighting-app/telink/prj.conf
@@ -62,6 +62,7 @@ CONFIG_CHIP_LIB_SHELL=n
 CONFIG_CHIP_FACTORY_DATA=n
 CONFIG_CHIP_FACTORY_DATA_BUILD=n
 CONFIG_CHIP_FACTORY_DATA_MERGE_WITH_FIRMWARE=n
+CONFIG_CHIP_CERTIFICATION_DECLARATION_STORAGE=n
 
 # Enable Button IRQ mode. The poling mode is used by default.
 CONFIG_CHIP_BUTTON_MANAGER_IRQ_MODE=n

diff --git a/src/platform/telink/FactoryDataParser.c b/src/platform/telink/FactoryDataParser.c
@@ -169,6 +169,10 @@ bool ParseFactoryData(uint8_t * buffer, uint16_t bufferSize, struct FactoryData
         {
             res = res && zcbor_bstr_decode(states, (struct zcbor_string *) &factoryData->user);
         }
+        else if (strncmp("cert_dclrn", (const char *) currentString.value, currentString.len) == 0)
+        {
+            res = res && zcbor_bstr_decode(states, (struct zcbor_string *) &factoryData->certificate_declaration);
+        }
         else
         {
             res = res && zcbor_any_skip(states, NULL);

diff --git a/src/platform/telink/FactoryDataParser.h b/src/platform/telink/FactoryDataParser.h
@@ -58,6 +58,7 @@ struct FactoryData
     uint32_t passcode;
     struct FactoryDataString enable_key;
     struct FactoryDataString user;
+    struct FactoryDataString certificate_declaration;
 
     bool vendorIdPresent;
     bool productIdPresent;

diff --git a/src/platform/telink/FactoryDataProvider.cpp b/src/platform/telink/FactoryDataProvider.cpp
@@ -102,15 +102,14 @@ template <class FlashFactoryData>
 CHIP_ERROR FactoryDataProvider<FlashFactoryData>::GetCertificationDeclaration(MutableByteSpan & outBuffer)
 {
 #if CONFIG_CHIP_CERTIFICATION_DECLARATION_STORAGE
-    size_t cdLen = 0;
+    ReturnErrorCodeIf(outBuffer.size() < mFactoryData.certificate_declaration.len, CHIP_ERROR_BUFFER_TOO_SMALL);
+    ReturnErrorCodeIf(!mFactoryData.certificate_declaration.data, CHIP_ERROR_PERSISTED_STORAGE_VALUE_NOT_FOUND);
 
-    if (Internal::ZephyrConfig::ReadConfigValueBin(Internal::ZephyrConfig::kConfigKey_CertificationDeclaration,
-                                                   reinterpret_cast<uint8_t *>(outBuffer.data()), outBuffer.size(),
-                                                   cdLen) == CHIP_NO_ERROR)
-    {
-        outBuffer.reduce_size(cdLen);
-        return CHIP_NO_ERROR;
-    }
+    memcpy(outBuffer.data(), mFactoryData.certificate_declaration.data, mFactoryData.certificate_declaration.len);
+
+    outBuffer.reduce_size(mFactoryData.certificate_declaration.len);
+
+    return CHIP_NO_ERROR;
 #endif
     constexpr uint8_t kCdForAllExamples[] = CHIP_DEVICE_CONFIG_CERTIFICATION_DECLARATION;