tools: Add a new nv_data-imei tool based on rfs-imei

Signed-off-by: Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org>

1 files changed, 82 insertions, 0 deletions

diff --git a/tools/nv_data-imei.h b/tools/nv_data-imei.h
new file mode 100644
index 0000000..cb35808
--- /dev/null
+++ b/tools/nv_data-imei.h
@@ -0,0 +1,82 @@
+/*
+ * This file is part of libsamsung-ipc.
+ *
+ * Copyright (C) 2014 Paul Kocialkowsk <contact@paulk.fr>
+ * Copyright (C) 2020 Denis 'GNUtoo' Carikli <GNUtoo@cyberdimension.org>
+ *
+ * libsamsung-ipc is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * libsamsung-ipc is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with libsamsung-ipc.  If not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef NV_DATA_IMEI_H
+#define NV_DATA_IMEI_H
+
+#include <stdbool.h>
+#include <stdint.h>
+#include <string.h>
+
+#define BIT(n) (1<<n)
+
+#define IMEI_LENGTH 15
+
+extern int opterr;
+
+/* This enables to enforce the size limit */
+struct imei {
+	char imei[IMEI_LENGTH + 1];
+	bool option_set;
+	char *optarg;
+};
+
+#define OFFSET_NEGATIVE BIT(0)
+#define OFFSET_OVERFLOW BIT(1)
+
+struct offset {
+	size_t offset;
+	bool option_set;
+	int error;
+	char *optarg;
+};
+
+/* So far we support only one device and IMEI offset, but more offsets do exist
+ * as the original code from Paul Kocialkowski used the 0xE880 offset instead.
+ * We don't know yet if multiple offsets can work for one device.
+ */
+#define DEFAULT_IMEI_OFFSET 0xEC80
+
+struct command {
+	const char *name;
+	const char *help;
+	uint8_t options;
+	uint8_t required_options;
+	int (*func)(); /* TODO: enfroce argument types */
+};
+
+struct command_option {
+	uint8_t option;
+	const char *option_string;
+	const char *help;
+	const char *example;
+	int (*get_data)(struct command *command, void *arg);
+};
+
+#define NO_OPTIONS	0
+#define OPTION_FILE	BIT(0)
+#define OPTION_HELP	BIT(1)
+#define OPTION_IMEI	BIT(2)
+#define OPTION_OFFSET	BIT(3)
+
+int bruteforce_imei_offset(char *nv_data_path, struct imei *given_imei);
+int read_imei(char *nv_data_path, struct offset *offset);
+int write_imei(char *nv_data_path, struct offset *offset, struct imei *imei);
+
+#endif /* NV_DATA_IMEI_H */