/* * (C) Copyright 2018, Linaro Limited * * SPDX-License-Identifier: GPL-2.0+ */ #ifndef _AVB_VERIFY_H #define _AVB_VERIFY_H #include <../lib/libavb/libavb.h> #include <mapmem.h> #include <mmc.h> #define AVB_MAX_ARGS 1024 #define VERITY_TABLE_OPT_RESTART "restart_on_corruption" #define VERITY_TABLE_OPT_LOGGING "ignore_corruption" #define ALLOWED_BUF_ALIGN 8 enum avb_boot_state { AVB_GREEN, AVB_YELLOW, AVB_ORANGE, AVB_RED, }; struct AvbOpsData { struct AvbOps ops; int mmc_dev; enum avb_boot_state boot_state; #ifdef CONFIG_OPTEE_TA_AVB struct udevice *tee; u32 session; #endif }; struct mmc_part { int dev_num; struct mmc *mmc; struct blk_desc *mmc_blk; struct disk_partition info; }; enum mmc_io_type { IO_READ, IO_WRITE }; AvbOps *avb_ops_alloc(int boot_device); void avb_ops_free(AvbOps *ops); char *avb_set_state(AvbOps *ops, enum avb_boot_state boot_state); char *avb_set_enforce_verity(const char *cmdline); char *avb_set_ignore_corruption(const char *cmdline); char *append_cmd_line(char *cmdline_orig, char *cmdline_new); /** * ============================================================================ * I/O helper inline functions * ============================================================================ */ static inline uint64_t calc_offset(struct mmc_part *part, int64_t offset) { u64 part_size = part->info.size * part->info.blksz; if (offset < 0) return part_size + offset; return offset; } static inline size_t get_sector_buf_size(void) { return (size_t)CONFIG_AVB_BUF_SIZE; } static inline void *get_sector_buf(void) { return map_sysmem(CONFIG_AVB_BUF_ADDR, CONFIG_AVB_BUF_SIZE); } static inline bool is_buf_unaligned(void *buffer) { return (bool)((uintptr_t)buffer % ALLOWED_BUF_ALIGN); } static inline int get_boot_device(AvbOps *ops) { struct AvbOpsData *data; if (ops) { data = ops->user_data; if (data) return data->mmc_dev; } return -1; } #endif /* _AVB_VERIFY_H */