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/*
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* (C) Copyright 2018, Linaro Limited
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef _AVB_VERIFY_H
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#define _AVB_VERIFY_H
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#include <../lib/libavb/libavb.h>
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#include <mmc.h>
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#define AVB_MAX_ARGS 1024
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#define VERITY_TABLE_OPT_RESTART "restart_on_corruption"
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#define VERITY_TABLE_OPT_LOGGING "ignore_corruption"
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#define ALLOWED_BUF_ALIGN 8
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enum avb_boot_state {
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AVB_GREEN,
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AVB_YELLOW,
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AVB_ORANGE,
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AVB_RED,
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};
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struct AvbOpsData {
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struct AvbOps ops;
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int mmc_dev;
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enum avb_boot_state boot_state;
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};
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struct mmc_part {
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int dev_num;
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struct mmc *mmc;
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struct blk_desc *mmc_blk;
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disk_partition_t info;
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};
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enum mmc_io_type {
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IO_READ,
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IO_WRITE
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};
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AvbOps *avb_ops_alloc(int boot_device);
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void avb_ops_free(AvbOps *ops);
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char *avb_set_state(AvbOps *ops, enum avb_boot_state boot_state);
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char *avb_set_enforce_verity(const char *cmdline);
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char *avb_set_ignore_corruption(const char *cmdline);
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char *append_cmd_line(char *cmdline_orig, char *cmdline_new);
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/**
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* ============================================================================
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* I/O helper inline functions
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* ============================================================================
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*/
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static inline uint64_t calc_offset(struct mmc_part *part, int64_t offset)
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{
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u64 part_size = part->info.size * part->info.blksz;
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if (offset < 0)
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return part_size + offset;
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return offset;
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}
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static inline size_t get_sector_buf_size(void)
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{
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return (size_t)CONFIG_FASTBOOT_BUF_SIZE;
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}
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static inline void *get_sector_buf(void)
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{
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return (void *)CONFIG_FASTBOOT_BUF_ADDR;
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}
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static inline bool is_buf_unaligned(void *buffer)
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{
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return (bool)((uintptr_t)buffer % ALLOWED_BUF_ALIGN);
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}
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static inline int get_boot_device(AvbOps *ops)
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{
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struct AvbOpsData *data;
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if (ops) {
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data = ops->user_data;
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if (data)
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return data->mmc_dev;
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}
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return -1;
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}
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#endif /* _AVB_VERIFY_H */
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