Diff: source/daplink/validation.c

Revision:

0:01f31e923fe2

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/source/daplink/validation.c	Tue Apr 07 12:55:42 2020 +0200
@@ -0,0 +1,89 @@
+/**
+ * @file    validation.c
+ * @brief   Implementation of validation.h
+ *
+ * DAPLink Interface Firmware
+ * Copyright (c) 2009-2019, ARM Limited, All Rights Reserved
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"); you may
+ * not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <string.h>
+#include "validation.h"
+#include "target_config.h"
+#include "target_family.h"
+#include "target_board.h"
+
+static inline uint32_t test_range(const uint32_t test, const uint32_t min, const uint32_t max)
+{
+    return ((test < min) || (test > max)) ? 0 : 1;
+}
+
+uint8_t validate_bin_nvic(const uint8_t *buf)
+{
+    if (g_target_family && g_target_family->validate_bin_nvic) {
+        return g_target_family && g_target_family->validate_bin_nvic(buf);
+    } else if (g_board_info.target_cfg) {
+        uint32_t i = 4, nvic_val = 0;
+        uint8_t in_range = 0;
+        // test the initial SP value
+        memcpy(&nvic_val, buf + 0, sizeof(nvic_val));
+
+        region_info_t * region = g_board_info.target_cfg->ram_regions;
+        for (; region->start != 0 || region->end != 0; ++region) {
+            if (1 == test_range(nvic_val, region->start, region->end)) {
+                in_range = 1;
+                break;
+            }
+        }
+
+        if (in_range == 0) {
+            return 0;
+        }
+
+        // Reset_Handler
+        // NMI_Handler
+        // HardFault_Handler
+        for (; i <= 12; i += 4) {
+            in_range = 0;
+            memcpy(&nvic_val, buf + i, sizeof(nvic_val));
+            region_info_t * region = g_board_info.target_cfg->flash_regions;
+            for (; region->start != 0 || region->end != 0; ++region) {
+                if (1 == test_range(nvic_val, region->start, region->end)) {
+                    in_range = 1;
+                    break;
+                }
+            }
+            if (in_range == 0) {
+                return 0;
+            }
+        }
+
+        return 1;
+
+    } else {
+        return 0;
+    }
+}
+
+uint8_t validate_hexfile(const uint8_t *buf)
+{
+    if (g_target_family && g_target_family->validate_hexfile) {
+        return g_target_family->validate_hexfile(buf);
+    } else {
+        // look here for known hex records
+        // add hex identifier b[0] == ':' && b[8] == {'0', '2', '3', '4', '5'}
+        return ((buf[0] == ':') && ((buf[8] == '0') || (buf[8] == '2') || (buf[8] == '3') || (buf[8] == '4') || (buf[8] == '5'))) ? 1 : 0;
+    }
+}