174 lines
5.2 KiB
C
174 lines
5.2 KiB
C
/*
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* (C) Copyright 2013
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*
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* Written by Guilherme Maciel Ferreira <guilherme.maciel.ferreira@gmail.com>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef _IMAGETOOL_H_
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#define _IMAGETOOL_H_
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#include "os_support.h"
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#include <errno.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/stat.h>
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#include <time.h>
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#include <unistd.h>
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#include <sha1.h>
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#include "fdt_host.h"
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#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
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#define IH_ARCH_DEFAULT IH_ARCH_INVALID
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/*
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* This structure defines all such variables those are initialized by
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* mkimage and dumpimage main core and need to be referred by image
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* type specific functions
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*/
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struct image_tool_params {
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int dflag;
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int eflag;
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int fflag;
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int iflag;
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int lflag;
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int pflag;
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int vflag;
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int xflag;
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int skipcpy;
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int os;
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int arch;
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int type;
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int comp;
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char *dtc;
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unsigned int addr;
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unsigned int ep;
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char *imagename;
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char *imagename2;
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char *datafile;
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char *imagefile;
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char *cmdname;
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const char *outfile; /* Output filename */
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const char *keydir; /* Directory holding private keys */
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const char *keydest; /* Destination .dtb for public key */
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const char *comment; /* Comment to add to signature node */
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int require_keys; /* 1 to mark signing keys as 'required' */
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};
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/*
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* image type specific variables and callback functions
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*/
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struct image_type_params {
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/* name is an identification tag string for added support */
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char *name;
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/*
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* header size is local to the specific image type to be supported,
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* mkimage core treats this as number of bytes
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*/
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uint32_t header_size;
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/* Image type header pointer */
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void *hdr;
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/*
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* There are several arguments that are passed on the command line
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* and are registered as flags in image_tool_params structure.
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* This callback function can be used to check the passed arguments
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* are in-lined with the image type to be supported
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*
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* Returns 1 if parameter check is successful
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*/
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int (*check_params) (struct image_tool_params *);
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/*
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* This function is used by list command (i.e. mkimage -l <filename>)
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* image type verification code must be put here
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*
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* Returns 0 if image header verification is successful
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* otherwise, returns respective negative error codes
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*/
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int (*verify_header) (unsigned char *, int, struct image_tool_params *);
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/* Prints image information abstracting from image header */
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void (*print_header) (const void *);
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/*
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* The header or image contents need to be set as per image type to
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* be generated using this callback function.
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* further output file post processing (for ex. checksum calculation,
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* padding bytes etc..) can also be done in this callback function.
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*/
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void (*set_header) (void *, struct stat *, int,
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struct image_tool_params *);
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/*
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* This function is used by the command to retrieve a data file from
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* the image (i.e. dumpimage -i <image> -p <position> <data_file>).
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* Thus the code to extract a file from an image must be put here.
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*
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* Returns 0 if the file was successfully retrieved from the image,
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* or a negative value on error.
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*/
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int (*extract_datafile) (void *, struct image_tool_params *);
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/*
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* Some image generation support for ex (default image type) supports
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* more than one type_ids, this callback function is used to check
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* whether input (-T <image_type>) is supported by registered image
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* generation/list low level code
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*/
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int (*check_image_type) (uint8_t);
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/* This callback function will be executed if fflag is defined */
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int (*fflag_handle) (struct image_tool_params *);
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/*
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* This callback function will be executed for variable size record
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* It is expected to build this header in memory and return its length
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* and a pointer to it by using image_type_params.header_size and
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* image_type_params.hdr. The return value shall indicate if an
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* additional padding should be used when copying the data image
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* by returning the padding length.
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*/
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int (*vrec_header) (struct image_tool_params *,
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struct image_type_params *);
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/* pointer to the next registered entry in linked list */
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struct image_type_params *next;
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};
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/*
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* Tool registration function.
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*/
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typedef void (*imagetool_register_t)(struct image_type_params *);
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/*
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* Initializes all image types with the given registration callback
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* function.
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* An image tool uses this function to initialize all image types.
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*/
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void register_image_tool(imagetool_register_t image_register);
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/*
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* Register a image type within a tool.
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* An image type uses this function to register itself within
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* all tools.
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*/
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void register_image_type(struct image_type_params *tparams);
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/*
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* There is a c file associated with supported image type low level code
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* for ex. default_image.c, fit_image.c
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* init_xxx_type() is the only function referred by image tool core to avoid
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* a single lined header file, you can define them here
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*
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* Supported image types init functions
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*/
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void init_default_image_type(void);
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void init_pbl_image_type(void);
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void init_ais_image_type(void);
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void init_kwb_image_type(void);
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void init_imx_image_type(void);
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void init_mxs_image_type(void);
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void init_fit_image_type(void);
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void init_ubl_image_type(void);
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void init_omap_image_type(void);
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void pbl_load_uboot(int fd, struct image_tool_params *mparams);
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#endif /* _IMAGETOOL_H_ */
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