nimble/host: implement robust gatt caching (server side) #2098
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This was referenced Aug 27, 2025
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szymon-czapracki
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nimble/host/include/host/ble_gatt.h
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| /** | ||
| * Calculates database hash value | ||
| * @return |
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Describe return values for this function.
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| hash = ble_gatts_get_db_hash(); | ||
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| for (int i = 0; i < BLE_GATT_DB_HASH_SZ; i++) { |
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Declare the loop control variable at the beginning of the function with the rest of the variables.
Suggested change
| for (int i = 0; i < BLE_GATT_DB_HASH_SZ; i++) { | |
| for (i = 0; i < BLE_GATT_DB_HASH_SZ; i++) { |
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| if (rc == 0) { | ||
| /* Peer will become change aware after first att request after | ||
| * reading hash*/ |
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| * reading hash*/ | |
| * reading hash */ |
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| int rc; | ||
| ble_svc_gatt_start_handle = start_handle; | ||
| ble_svc_gatt_end_handle = end_handle; |
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| int rc; | |
| ble_svc_gatt_start_handle = start_handle; | |
| ble_svc_gatt_end_handle = end_handle; | |
| int rc; | |
| ble_svc_gatt_start_handle = start_handle; | |
| ble_svc_gatt_end_handle = end_handle; |
| ble_svc_gatt_end_handle = end_handle; | ||
| ble_hs_lock(); | ||
| rc = ble_gatts_calculate_db_hash(); | ||
| if (rc != 0) { |
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| if (rc != 0) { | |
| if (rc) { |
| for (entry = STAILQ_FIRST(&ble_att_svr_list); entry != NULL; | ||
| entry = STAILQ_NEXT(entry, ha_next)) { | ||
| rc = cb(entry, arg); | ||
| if (rc != 0) { |
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| if (rc != 0) { | |
| if (rc) { |
| * to such a client until it becomes change-aware */ | ||
| if (!is_change_aware(conn_handle)) { | ||
| rc = ble_att_svr_read_local(chr_val_handle - 1, &om); | ||
| if (rc != 0) { |
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| if (rc != 0) { | |
| if (rc) { |
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| #if MYNEWT_VAL(BLE_ATT_SVR_ROBUST_CACHE) | ||
| rc = ble_gatts_calculate_db_hash(); | ||
| if (rc != 0) { |
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| if (rc != 0) { | |
| if (rc) { |
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This applies in multiple places further in the code.
| } | ||
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| diff = 0; | ||
| for (size_t i = 0; i < BLE_GATT_DB_HASH_SZ; ++i) { |
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Declare control variable outside loop definition.
Suggested change
| for (size_t i = 0; i < BLE_GATT_DB_HASH_SZ; ++i) { | |
| for (i = 0; i < BLE_GATT_DB_HASH_SZ; ++i) { |
| value: 1 | ||
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| BLE_ATT_SVR_ROBUST_CACHE: | ||
| description: dupa |
Add support for Robust GATT Caching.
Add support for BLE_STORE_OBJ_TYPE_PEER_CL_SUP_FEAT. This is used for storing values of Client Supported Features for clients with a trusted relationship.
This adds support for storing client supported features for clients with a trusted relationship. Fixes Host qualification test case GATT/SR/GAS/BV-04-C
Move BLE_GATT_CHR_CLI_SUP_FEAT_SZ to public header.
Extend storage unit tests to cover new object type PEER_CL_SUP_FEAT
Extend storage unit tests to test new object type DB_HASH.
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Add support for Robust GATT Caching.
Depends on #2114 #2088