| /* |
| * Copyright (C) 2009 coresystems GmbH |
| * written by Patrick Georgi <patrick.georgi@coresystems.de> |
| * Copyright (C) 2012 Google, Inc. |
| * |
| * This program 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; version 2 of the License. |
| * |
| * This program 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. |
| */ |
| |
| #ifndef __CBFSTOOL_COMMON_H |
| #define __CBFSTOOL_COMMON_H |
| |
| #include <stdbool.h> |
| #include <stddef.h> |
| #include <stdint.h> |
| #include <string.h> |
| #include <assert.h> |
| |
| #include <console/console.h> |
| |
| /* Endianess */ |
| #include "swab.h" |
| |
| /* Helpers */ |
| #define ARRAY_SIZE(a) (int)(sizeof(a) / sizeof((a)[0])) |
| #define ALIGN(val, by) (((val) + (by)-1)&~((by)-1)) |
| #define MAX(x, y) ((x) > (y) ? (x) : (y)) |
| #define MIN(x, y) ((x) < (y) ? (x) : (y)) |
| |
| #define IS_TOP_ALIGNED_ADDRESS(x) ((uint32_t)(x) > 0x80000000) |
| |
| #define unused __attribute__((unused)) |
| |
| static inline uint32_t align_up(uint32_t value, uint32_t align) |
| { |
| if (value % align) |
| value += align - (value % align); |
| return value; |
| } |
| |
| /* Buffer and file I/O */ |
| struct buffer { |
| char *name; |
| char *data; |
| size_t offset; |
| size_t size; |
| }; |
| |
| static inline void *buffer_get(const struct buffer *b) |
| { |
| return b->data; |
| } |
| |
| static inline size_t buffer_size(const struct buffer *b) |
| { |
| return b->size; |
| } |
| |
| /* |
| * Shrink a buffer toward the beginning of its previous space. |
| * Afterward, buffer_delete() remains the means of cleaning it up. */ |
| static inline void buffer_set_size(struct buffer *b, size_t size) |
| { |
| b->size = size; |
| } |
| |
| /* Initialize a buffer with the given constraints. */ |
| static inline void buffer_init(struct buffer *b, char *name, void *data, |
| size_t size) |
| { |
| b->name = name; |
| b->data = data; |
| b->size = size; |
| b->offset = 0; |
| } |
| |
| /* Splice a buffer into another buffer. Note that it's up to the caller to |
| * bounds check the offset and size. The resulting buffer is backed by the same |
| * storage as the original, so although it is valid to buffer_delete() either |
| * one of them, doing so releases both simultaneously. */ |
| static inline void buffer_splice(struct buffer *dest, const struct buffer *src, |
| size_t offset, size_t size) |
| { |
| dest->name = src->name; |
| dest->data = src->data + offset; |
| dest->offset = src->offset + offset; |
| dest->size = size; |
| } |
| |
| /* |
| * Shallow copy a buffer. To clean up the resources, buffer_delete() |
| * either one, but not both. */ |
| static inline void buffer_clone(struct buffer *dest, const struct buffer *src) |
| { |
| buffer_splice(dest, src, 0, src->size); |
| } |
| |
| /* |
| * Shrink a buffer toward the end of its previous space. |
| * Afterward, buffer_delete() remains the means of cleaning it up. */ |
| static inline void buffer_seek(struct buffer *b, size_t size) |
| { |
| b->offset += size; |
| b->size -= size; |
| b->data += size; |
| } |
| |
| /* Returns whether the buffer begins with the specified magic bytes. */ |
| static inline bool buffer_check_magic(const struct buffer *b, const char *magic, |
| size_t magic_len) |
| { |
| assert(magic); |
| return b && b->size >= magic_len && |
| memcmp(b->data, magic, magic_len) == 0; |
| } |
| |
| /* Creates an empty memory buffer with given size. |
| * Returns 0 on success, otherwise non-zero. */ |
| int buffer_create(struct buffer *buffer, size_t size, const char *name); |
| |
| /* Loads a file into memory buffer. Returns 0 on success, otherwise non-zero. */ |
| int buffer_from_file(struct buffer *buffer, const char *filename); |
| |
| /* Writes memory buffer content into file. |
| * Returns 0 on success, otherwise non-zero. */ |
| int buffer_write_file(struct buffer *buffer, const char *filename); |
| |
| /* Destroys a memory buffer. */ |
| void buffer_delete(struct buffer *buffer); |
| |
| const char *arch_to_string(uint32_t a); |
| uint32_t string_to_arch(const char *arch_string); |
| |
| /* Compress in_len bytes from in, storing the result at out, returning the |
| * resulting length in out_len. |
| * Returns 0 on error, |
| * != 0 otherwise, depending on the compressing function. |
| */ |
| typedef int (*comp_func_ptr) (char *in, int in_len, char *out, int *out_len); |
| |
| /* Decompress in_len bytes from in, storing the result at out, up to out_len |
| * bytes. |
| * Returns 0 on error, |
| * != 0 otherwise, depending on the decompressing function. |
| */ |
| typedef int (*decomp_func_ptr) (char *in, int in_len, char *out, int out_len, |
| size_t *actual_size); |
| |
| enum comp_algo { CBFS_COMPRESS_NONE = 0, CBFS_COMPRESS_LZMA = 1 }; |
| |
| comp_func_ptr compression_function(enum comp_algo algo); |
| decomp_func_ptr decompression_function(enum comp_algo algo); |
| |
| uint64_t intfiletype(const char *name); |
| |
| /* cbfs-mkpayload.c */ |
| int parse_elf_to_payload(const struct buffer *input, struct buffer *output, |
| enum comp_algo algo); |
| int parse_fv_to_payload(const struct buffer *input, struct buffer *output, |
| enum comp_algo algo); |
| int parse_bzImage_to_payload(const struct buffer *input, |
| struct buffer *output, const char *initrd, |
| char *cmdline, enum comp_algo algo); |
| int parse_flat_binary_to_payload(const struct buffer *input, |
| struct buffer *output, |
| uint32_t loadaddress, |
| uint32_t entrypoint, |
| enum comp_algo algo); |
| /* cbfs-mkstage.c */ |
| int parse_elf_to_stage(const struct buffer *input, struct buffer *output, |
| enum comp_algo algo, uint32_t *location, |
| const char *ignore_section); |
| /* location is TOP aligned. */ |
| int parse_elf_to_xip_stage(const struct buffer *input, struct buffer *output, |
| uint32_t *location, const char *ignore_section); |
| |
| void print_supported_filetypes(void); |
| |
| /* lzma/lzma.c */ |
| int do_lzma_compress(char *in, int in_len, char *out, int *out_len); |
| int do_lzma_uncompress(char *dst, int dst_len, char *src, int src_len, |
| size_t *actual_size); |
| |
| /* xdr.c */ |
| struct xdr { |
| uint8_t (*get8)(struct buffer *input); |
| uint16_t (*get16)(struct buffer *input); |
| uint32_t (*get32)(struct buffer *input); |
| uint64_t (*get64)(struct buffer *input); |
| void (*put8)(struct buffer *input, uint8_t val); |
| void (*put16)(struct buffer *input, uint16_t val); |
| void (*put32)(struct buffer *input, uint32_t val); |
| void (*put64)(struct buffer *input, uint64_t val); |
| }; |
| |
| extern struct xdr xdr_le, xdr_be; |
| size_t bgets(struct buffer *input, void *output, size_t len); |
| size_t bputs(struct buffer *b, const void *data, size_t len); |
| |
| /* Returns a 0-terminated string containing a hex representation of |
| * len bytes starting at data. |
| * The string is malloc'd and it's the caller's responsibility to free |
| * the memory. |
| * On error, bintohex returns NULL. |
| */ |
| char *bintohex(uint8_t *data, size_t len); |
| #endif |