--- /dev/null
+/*
+ * Copyright (C) 2015 The Android Open Source Project
+ *
+ * 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 <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <sysexits.h>
+
+#include <errno.h>
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <hardware/hardware.h>
+#include <hardware/boot_control.h>
+
+static void usage(FILE* where, int argc, char* argv[])
+{
+ fprintf(where,
+ "%s - command-line wrapper for the boot_control HAL.\n"
+ "\n"
+ "Usage:\n"
+ " %s COMMAND\n"
+ "\n"
+ "Commands:\n"
+ " %s hal-info - Show info about boot_control HAL used.\n"
+ " %s get-number-slots - Prints number of slots.\n"
+ " %s get-current-slot - Prints currently running SLOT.\n"
+ " %s mark-boot-successful - Mark current slot as GOOD.\n"
+ " %s set-active-boot-slot SLOT - On next boot, load and execute SLOT.\n"
+ " %s set-slot-as-unbootable SLOT - Mark SLOT as invalid.\n"
+ " %s is-slot-bootable SLOT - Returns 0 only if SLOT is bootable.\n"
+ " %s get-suffix SLOT - Prints suffix for SLOT.\n"
+ "\n"
+ "SLOT parameter is the zero-based slot-number.\n",
+ argv[0], argv[0], argv[0], argv[0], argv[0],
+ argv[0], argv[0], argv[0], argv[0], argv[0]);
+}
+
+static int do_hal_info(const hw_module_t *hw_module)
+{
+ fprintf(stdout,
+ "HAL name: %s\n"
+ "HAL author: %s\n"
+ "HAL module version: %d.%d\n",
+ hw_module->name,
+ hw_module->author,
+ hw_module->module_api_version>>8,
+ hw_module->module_api_version&0xff);
+ return EX_OK;
+}
+
+static int do_get_number_slots(boot_control_module_t *module)
+{
+ int num_slots = module->getNumberSlots(module);
+ fprintf(stdout, "%d\n", num_slots);
+ return EX_OK;
+}
+
+static int do_get_current_slot(boot_control_module_t *module)
+{
+ int cur_slot = module->getCurrentSlot(module);
+ fprintf(stdout, "%d\n", cur_slot);
+ return EX_OK;
+}
+
+static int do_mark_boot_successful(boot_control_module_t *module)
+{
+ int ret = module->markBootSuccessful(module);
+ if (ret == 0)
+ return EX_OK;
+ fprintf(stderr, "Error marking as having booted successfully: %s\n",
+ strerror(-ret));
+ return EX_SOFTWARE;
+}
+
+static int do_set_active_boot_slot(boot_control_module_t *module,
+ int slot_number)
+{
+ int ret = module->setActiveBootSlot(module, slot_number);
+ if (ret == 0)
+ return EX_OK;
+ fprintf(stderr, "Error setting active boot slot: %s\n", strerror(-ret));
+ return EX_SOFTWARE;
+}
+
+static int do_set_slot_as_unbootable(boot_control_module_t *module,
+ int slot_number)
+{
+ int ret = module->setSlotAsUnbootable(module, slot_number);
+ if (ret == 0)
+ return EX_OK;
+ fprintf(stderr, "Error setting slot as unbootable: %s\n", strerror(-ret));
+ return EX_SOFTWARE;
+}
+
+
+static int do_is_slot_bootable(boot_control_module_t *module, int slot_number)
+{
+ int ret = module->isSlotBootable(module, slot_number);
+ if (ret == 0)
+ return EX_SOFTWARE;
+ return EX_OK;
+}
+
+
+static int do_get_suffix(boot_control_module_t *module, int slot_number)
+{
+ const char* suffix = module->getSuffix(module, slot_number);
+ fprintf(stdout, "%s\n", suffix);
+ return EX_OK;
+}
+
+static int parse_slot(int pos, int argc, char *argv[])
+{
+ if (pos > argc - 1) {
+ usage(stderr, argc, argv);
+ exit(EX_USAGE);
+ return -1;
+ }
+ int ret = strtol(argv[pos], NULL, 10);
+ if (ret == LONG_MIN || ret == LONG_MAX) {
+ usage(stderr, argc, argv);
+ exit(EX_USAGE);
+ return -1;
+ }
+ return ret;
+}
+
+int main(int argc, char *argv[])
+{
+ const hw_module_t *hw_module;
+ boot_control_module_t *module;
+ int ret;
+
+ ret = hw_get_module("bootctrl", &hw_module);
+ if (ret != 0) {
+ fprintf(stderr, "Error getting bootctrl module.\n");
+ return EX_SOFTWARE;
+ }
+ module = (boot_control_module_t*) hw_module;
+ module->init(module);
+
+ if (argc < 2) {
+ usage(stderr, argc, argv);
+ return EX_USAGE;
+ }
+
+ if (strcmp(argv[1], "hal-info") == 0) {
+ return do_hal_info(hw_module);
+ } else if (strcmp(argv[1], "get-number-slots") == 0) {
+ return do_get_number_slots(module);
+ } else if (strcmp(argv[1], "get-current-slot") == 0) {
+ return do_get_current_slot(module);
+ } else if (strcmp(argv[1], "mark-boot-successful") == 0) {
+ return do_mark_boot_successful(module);
+ } else if (strcmp(argv[1], "set-active-boot-slot") == 0) {
+ return do_set_active_boot_slot(module, parse_slot(2, argc, argv));
+ } else if (strcmp(argv[1], "set-slot-as-unbootable") == 0) {
+ return do_set_slot_as_unbootable(module, parse_slot(2, argc, argv));
+ } else if (strcmp(argv[1], "is-slot-bootable") == 0) {
+ return do_is_slot_bootable(module, parse_slot(2, argc, argv));
+ } else if (strcmp(argv[1], "get-suffix") == 0) {
+ return do_get_suffix(module, parse_slot(2, argc, argv));
+ } else {
+ usage(stderr, argc, argv);
+ return EX_USAGE;
+ }
+
+ return 0;
+}
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