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