Add new ITS reset SID

Only accessible from SPE

components/TARGET_PSA/services/psa_prot_internal_storage/COMPONENT_PSA_SRV_EMUL/psa_prot_internal_storage.cpp

@@ -92,3 +92,16 @@ psa_its_status_t psa_its_remove(psa_its_uid_t uid)
 
     return psa_its_remove_impl(PSA_ITS_EMUL_PID, uid);
 }
+
+extern "C" psa_its_status_t psa_its_reset()
+{
+    // KVStore initiation:
+    // - In EMUL (non-secure single core) we do it here since we don't have another context to do it inside.
+    // - Repeating calls has no effect
+    int kv_status = kv_init_storage_config();
+    if (kv_status != MBED_SUCCESS) {
+        return PSA_ITS_ERROR_STORAGE_FAILURE;
+    }
+
+    return psa_its_reset_impl();
+}

components/TARGET_PSA/services/psa_prot_internal_storage/COMPONENT_PSA_SRV_IMPL/pits_impl.cpp

@@ -307,6 +307,16 @@ psa_its_status_t psa_its_remove_impl(int32_t pid, psa_its_uid_t uid)
     return convert_status(status);
 }
 
+psa_its_status_t psa_its_reset_impl()
+{
+    if (!kvstore) {
+        its_init();
+    }
+
+    int status = kvstore->reset();
+    return convert_status(status);
+}
+
 #ifdef   __cplusplus
 }
 #endif

components/TARGET_PSA/services/psa_prot_internal_storage/COMPONENT_PSA_SRV_IMPL/pits_impl.h

@@ -33,6 +33,7 @@ psa_its_status_t psa_its_set_impl(int32_t pid, psa_its_uid_t uid, uint32_t data_
 psa_its_status_t psa_its_get_impl(int32_t pid, psa_its_uid_t uid, uint32_t data_offset, uint32_t data_length, void *p_data);
 psa_its_status_t psa_its_get_info_impl(int32_t pid, psa_its_uid_t uid, struct psa_its_info_t *p_info);
 psa_its_status_t psa_its_remove_impl(int32_t pid, psa_its_uid_t uid);
+psa_its_status_t psa_its_reset_impl();
 
 #ifdef   __cplusplus
 }

components/TARGET_PSA/services/psa_prot_internal_storage/COMPONENT_PSA_SRV_IPC/psa_prot_internal_storage.c

@@ -114,3 +114,19 @@ psa_its_status_t psa_its_remove(psa_its_uid_t uid)
     psa_close(conn);
     return status;
 }
+
+psa_its_status_t psa_its_reset()
+{
+    psa_handle_t conn = psa_connect(PSA_ITS_RESET, 1);
+    if (conn <= PSA_NULL_HANDLE) {
+        return PSA_ITS_ERROR_STORAGE_FAILURE;
+    }
+
+    psa_status_t status = psa_call(conn, NULL, 0, NULL, 0);
+    if (status == PSA_DROP_CONNECTION) {
+        status = PSA_ITS_ERROR_STORAGE_FAILURE;
+    }
+
+    psa_close(conn);
+    return status;
+}

components/TARGET_PSA/services/psa_prot_internal_storage/COMPONENT_SPE/its_partition.c

@@ -135,6 +135,12 @@ static psa_status_t storage_remove(psa_msg_t *msg)
     return psa_its_remove_impl(psa_identity(msg->handle), key);
 }
 
+static psa_status_t storage_reset(psa_msg_t *msg)
+{
+    (void)msg;
+    return psa_its_reset_impl();
+}
+
 static void message_handler(psa_msg_t *msg, SignalHandler handler)
 {
     psa_status_t status = PSA_SUCCESS;
@@ -187,6 +193,10 @@ void pits_entry(void *ptr)
             psa_get(PSA_ITS_REMOVE_MSK, &msg);
             message_handler(&msg, storage_remove);
         }
+        if ((signals & PSA_ITS_RESET_MSK) != 0) {
+            psa_get(PSA_ITS_RESET_MSK, &msg);
+            message_handler(&msg, storage_reset);
+        }
     }
 }
 

components/TARGET_PSA/services/psa_prot_internal_storage/pits_psa.json

@@ -37,6 +37,14 @@
         "non_secure_clients": true,
         "minor_version": 1,
         "minor_policy": "RELAXED"
+      },
+      {
+        "name": "PSA_ITS_RESET",
+        "identifier": "0x00011A04",
+        "signal": "PSA_ITS_RESET_MSK",
+        "non_secure_clients": false,
+        "minor_version": 1,
+        "minor_policy": "RELAXED"
       }
     ],
     "source_files": [