xref: /openbmc/u-boot/include/image.h (revision beb4d65e)
1 /*
2  * (C) Copyright 2008 Semihalf
3  *
4  * (C) Copyright 2000-2005
5  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
6  *
7  * SPDX-License-Identifier:	GPL-2.0+
8  ********************************************************************
9  * NOTE: This header file defines an interface to U-Boot. Including
10  * this (unmodified) header file in another file is considered normal
11  * use of U-Boot, and does *not* fall under the heading of "derived
12  * work".
13  ********************************************************************
14  */
15 
16 #ifndef __IMAGE_H__
17 #define __IMAGE_H__
18 
19 #include "compiler.h"
20 #include <asm/byteorder.h>
21 
22 /* Define this to avoid #ifdefs later on */
23 struct lmb;
24 
25 #ifdef USE_HOSTCC
26 #include <sys/types.h>
27 
28 /* new uImage format support enabled on host */
29 #define IMAGE_ENABLE_FIT	1
30 #define IMAGE_ENABLE_OF_LIBFDT	1
31 #define CONFIG_FIT_VERBOSE	1 /* enable fit_format_{error,warning}() */
32 
33 #define IMAGE_ENABLE_IGNORE	0
34 #define IMAGE_INDENT_STRING	""
35 
36 #else
37 
38 #include <lmb.h>
39 #include <asm/u-boot.h>
40 #include <command.h>
41 
42 /* Take notice of the 'ignore' property for hashes */
43 #define IMAGE_ENABLE_IGNORE	1
44 #define IMAGE_INDENT_STRING	"   "
45 
46 #define IMAGE_ENABLE_FIT	CONFIG_IS_ENABLED(FIT)
47 #define IMAGE_ENABLE_OF_LIBFDT	CONFIG_IS_ENABLED(OF_LIBFDT)
48 
49 #endif /* USE_HOSTCC */
50 
51 #if IMAGE_ENABLE_FIT
52 #include <hash.h>
53 #include <libfdt.h>
54 #include <fdt_support.h>
55 # ifdef CONFIG_SPL_BUILD
56 #  ifdef CONFIG_SPL_CRC32_SUPPORT
57 #   define IMAGE_ENABLE_CRC32	1
58 #  endif
59 #  ifdef CONFIG_SPL_MD5_SUPPORT
60 #   define IMAGE_ENABLE_MD5	1
61 #  endif
62 #  ifdef CONFIG_SPL_SHA1_SUPPORT
63 #   define IMAGE_ENABLE_SHA1	1
64 #  endif
65 #  ifdef CONFIG_SPL_SHA256_SUPPORT
66 #   define IMAGE_ENABLE_SHA256	1
67 #  endif
68 # else
69 #  define CONFIG_CRC32		/* FIT images need CRC32 support */
70 #  define CONFIG_MD5		/* and MD5 */
71 #  define CONFIG_SHA1		/* and SHA1 */
72 #  define CONFIG_SHA256		/* and SHA256 */
73 #  define IMAGE_ENABLE_CRC32	1
74 #  define IMAGE_ENABLE_MD5	1
75 #  define IMAGE_ENABLE_SHA1	1
76 #  define IMAGE_ENABLE_SHA256	1
77 # endif
78 
79 #ifdef CONFIG_FIT_DISABLE_SHA256
80 #undef CONFIG_SHA256
81 #undef IMAGE_ENABLE_SHA256
82 #endif
83 
84 #ifndef IMAGE_ENABLE_CRC32
85 #define IMAGE_ENABLE_CRC32	0
86 #endif
87 
88 #ifndef IMAGE_ENABLE_MD5
89 #define IMAGE_ENABLE_MD5	0
90 #endif
91 
92 #ifndef IMAGE_ENABLE_SHA1
93 #define IMAGE_ENABLE_SHA1	0
94 #endif
95 
96 #ifndef IMAGE_ENABLE_SHA256
97 #define IMAGE_ENABLE_SHA256	0
98 #endif
99 
100 #endif /* IMAGE_ENABLE_FIT */
101 
102 #ifdef CONFIG_SYS_BOOT_GET_CMDLINE
103 # define IMAGE_BOOT_GET_CMDLINE		1
104 #else
105 # define IMAGE_BOOT_GET_CMDLINE		0
106 #endif
107 
108 #ifdef CONFIG_OF_BOARD_SETUP
109 # define IMAGE_OF_BOARD_SETUP		1
110 #else
111 # define IMAGE_OF_BOARD_SETUP		0
112 #endif
113 
114 #ifdef CONFIG_OF_SYSTEM_SETUP
115 # define IMAGE_OF_SYSTEM_SETUP	1
116 #else
117 # define IMAGE_OF_SYSTEM_SETUP	0
118 #endif
119 
120 enum ih_category {
121 	IH_ARCH,
122 	IH_COMP,
123 	IH_OS,
124 	IH_TYPE,
125 
126 	IH_COUNT,
127 };
128 
129 /*
130  * Operating System Codes
131  *
132  * The following are exposed to uImage header.
133  * Do not change values for backward compatibility.
134  */
135 enum {
136 	IH_OS_INVALID		= 0,	/* Invalid OS	*/
137 	IH_OS_OPENBSD,			/* OpenBSD	*/
138 	IH_OS_NETBSD,			/* NetBSD	*/
139 	IH_OS_FREEBSD,			/* FreeBSD	*/
140 	IH_OS_4_4BSD,			/* 4.4BSD	*/
141 	IH_OS_LINUX,			/* Linux	*/
142 	IH_OS_SVR4,			/* SVR4		*/
143 	IH_OS_ESIX,			/* Esix		*/
144 	IH_OS_SOLARIS,			/* Solaris	*/
145 	IH_OS_IRIX,			/* Irix		*/
146 	IH_OS_SCO,			/* SCO		*/
147 	IH_OS_DELL,			/* Dell		*/
148 	IH_OS_NCR,			/* NCR		*/
149 	IH_OS_LYNXOS,			/* LynxOS	*/
150 	IH_OS_VXWORKS,			/* VxWorks	*/
151 	IH_OS_PSOS,			/* pSOS		*/
152 	IH_OS_QNX,			/* QNX		*/
153 	IH_OS_U_BOOT,			/* Firmware	*/
154 	IH_OS_RTEMS,			/* RTEMS	*/
155 	IH_OS_ARTOS,			/* ARTOS	*/
156 	IH_OS_UNITY,			/* Unity OS	*/
157 	IH_OS_INTEGRITY,		/* INTEGRITY	*/
158 	IH_OS_OSE,			/* OSE		*/
159 	IH_OS_PLAN9,			/* Plan 9	*/
160 	IH_OS_OPENRTOS,		/* OpenRTOS	*/
161 
162 	IH_OS_COUNT,
163 };
164 
165 /*
166  * CPU Architecture Codes (supported by Linux)
167  *
168  * The following are exposed to uImage header.
169  * Do not change values for backward compatibility.
170  */
171 enum {
172 	IH_ARCH_INVALID		= 0,	/* Invalid CPU	*/
173 	IH_ARCH_ALPHA,			/* Alpha	*/
174 	IH_ARCH_ARM,			/* ARM		*/
175 	IH_ARCH_I386,			/* Intel x86	*/
176 	IH_ARCH_IA64,			/* IA64		*/
177 	IH_ARCH_MIPS,			/* MIPS		*/
178 	IH_ARCH_MIPS64,			/* MIPS	 64 Bit */
179 	IH_ARCH_PPC,			/* PowerPC	*/
180 	IH_ARCH_S390,			/* IBM S390	*/
181 	IH_ARCH_SH,			/* SuperH	*/
182 	IH_ARCH_SPARC,			/* Sparc	*/
183 	IH_ARCH_SPARC64,		/* Sparc 64 Bit */
184 	IH_ARCH_M68K,			/* M68K		*/
185 	IH_ARCH_NIOS,			/* Nios-32	*/
186 	IH_ARCH_MICROBLAZE,		/* MicroBlaze   */
187 	IH_ARCH_NIOS2,			/* Nios-II	*/
188 	IH_ARCH_BLACKFIN,		/* Blackfin	*/
189 	IH_ARCH_AVR32,			/* AVR32	*/
190 	IH_ARCH_ST200,			/* STMicroelectronics ST200  */
191 	IH_ARCH_SANDBOX,		/* Sandbox architecture (test only) */
192 	IH_ARCH_NDS32,			/* ANDES Technology - NDS32  */
193 	IH_ARCH_OPENRISC,		/* OpenRISC 1000  */
194 	IH_ARCH_ARM64,			/* ARM64	*/
195 	IH_ARCH_ARC,			/* Synopsys DesignWare ARC */
196 	IH_ARCH_X86_64,			/* AMD x86_64, Intel and Via */
197 	IH_ARCH_XTENSA,			/* Xtensa	*/
198 
199 	IH_ARCH_COUNT,
200 };
201 
202 /*
203  * Image Types
204  *
205  * "Standalone Programs" are directly runnable in the environment
206  *	provided by U-Boot; it is expected that (if they behave
207  *	well) you can continue to work in U-Boot after return from
208  *	the Standalone Program.
209  * "OS Kernel Images" are usually images of some Embedded OS which
210  *	will take over control completely. Usually these programs
211  *	will install their own set of exception handlers, device
212  *	drivers, set up the MMU, etc. - this means, that you cannot
213  *	expect to re-enter U-Boot except by resetting the CPU.
214  * "RAMDisk Images" are more or less just data blocks, and their
215  *	parameters (address, size) are passed to an OS kernel that is
216  *	being started.
217  * "Multi-File Images" contain several images, typically an OS
218  *	(Linux) kernel image and one or more data images like
219  *	RAMDisks. This construct is useful for instance when you want
220  *	to boot over the network using BOOTP etc., where the boot
221  *	server provides just a single image file, but you want to get
222  *	for instance an OS kernel and a RAMDisk image.
223  *
224  *	"Multi-File Images" start with a list of image sizes, each
225  *	image size (in bytes) specified by an "uint32_t" in network
226  *	byte order. This list is terminated by an "(uint32_t)0".
227  *	Immediately after the terminating 0 follow the images, one by
228  *	one, all aligned on "uint32_t" boundaries (size rounded up to
229  *	a multiple of 4 bytes - except for the last file).
230  *
231  * "Firmware Images" are binary images containing firmware (like
232  *	U-Boot or FPGA images) which usually will be programmed to
233  *	flash memory.
234  *
235  * "Script files" are command sequences that will be executed by
236  *	U-Boot's command interpreter; this feature is especially
237  *	useful when you configure U-Boot to use a real shell (hush)
238  *	as command interpreter (=> Shell Scripts).
239  *
240  * The following are exposed to uImage header.
241  * Do not change values for backward compatibility.
242  */
243 
244 enum {
245 	IH_TYPE_INVALID		= 0,	/* Invalid Image		*/
246 	IH_TYPE_STANDALONE,		/* Standalone Program		*/
247 	IH_TYPE_KERNEL,			/* OS Kernel Image		*/
248 	IH_TYPE_RAMDISK,		/* RAMDisk Image		*/
249 	IH_TYPE_MULTI,			/* Multi-File Image		*/
250 	IH_TYPE_FIRMWARE,		/* Firmware Image		*/
251 	IH_TYPE_SCRIPT,			/* Script file			*/
252 	IH_TYPE_FILESYSTEM,		/* Filesystem Image (any type)	*/
253 	IH_TYPE_FLATDT,			/* Binary Flat Device Tree Blob	*/
254 	IH_TYPE_KWBIMAGE,		/* Kirkwood Boot Image		*/
255 	IH_TYPE_IMXIMAGE,		/* Freescale IMXBoot Image	*/
256 	IH_TYPE_UBLIMAGE,		/* Davinci UBL Image		*/
257 	IH_TYPE_OMAPIMAGE,		/* TI OMAP Config Header Image	*/
258 	IH_TYPE_AISIMAGE,		/* TI Davinci AIS Image		*/
259 	/* OS Kernel Image, can run from any load address */
260 	IH_TYPE_KERNEL_NOLOAD,
261 	IH_TYPE_PBLIMAGE,		/* Freescale PBL Boot Image	*/
262 	IH_TYPE_MXSIMAGE,		/* Freescale MXSBoot Image	*/
263 	IH_TYPE_GPIMAGE,		/* TI Keystone GPHeader Image	*/
264 	IH_TYPE_ATMELIMAGE,		/* ATMEL ROM bootable Image	*/
265 	IH_TYPE_SOCFPGAIMAGE,		/* Altera SOCFPGA Preloader	*/
266 	IH_TYPE_X86_SETUP,		/* x86 setup.bin Image		*/
267 	IH_TYPE_LPC32XXIMAGE,		/* x86 setup.bin Image		*/
268 	IH_TYPE_LOADABLE,		/* A list of typeless images	*/
269 	IH_TYPE_RKIMAGE,		/* Rockchip Boot Image		*/
270 	IH_TYPE_RKSD,			/* Rockchip SD card		*/
271 	IH_TYPE_RKSPI,			/* Rockchip SPI image		*/
272 	IH_TYPE_ZYNQIMAGE,		/* Xilinx Zynq Boot Image */
273 	IH_TYPE_ZYNQMPIMAGE,		/* Xilinx ZynqMP Boot Image */
274 	IH_TYPE_FPGA,			/* FPGA Image */
275 	IH_TYPE_VYBRIDIMAGE,	/* VYBRID .vyb Image */
276 	IH_TYPE_TEE,            /* Trusted Execution Environment OS Image */
277 	IH_TYPE_FIRMWARE_IVT,		/* Firmware Image with HABv4 IVT */
278 
279 	IH_TYPE_COUNT,			/* Number of image types */
280 };
281 
282 /*
283  * Compression Types
284  *
285  * The following are exposed to uImage header.
286  * Do not change values for backward compatibility.
287  */
288 enum {
289 	IH_COMP_NONE		= 0,	/*  No	 Compression Used	*/
290 	IH_COMP_GZIP,			/* gzip	 Compression Used	*/
291 	IH_COMP_BZIP2,			/* bzip2 Compression Used	*/
292 	IH_COMP_LZMA,			/* lzma  Compression Used	*/
293 	IH_COMP_LZO,			/* lzo   Compression Used	*/
294 	IH_COMP_LZ4,			/* lz4   Compression Used	*/
295 
296 	IH_COMP_COUNT,
297 };
298 
299 #define IH_MAGIC	0x27051956	/* Image Magic Number		*/
300 #define IH_NMLEN		32	/* Image Name Length		*/
301 
302 /* Reused from common.h */
303 #define ROUND(a, b)		(((a) + (b) - 1) & ~((b) - 1))
304 
305 /*
306  * Legacy format image header,
307  * all data in network byte order (aka natural aka bigendian).
308  */
309 typedef struct image_header {
310 	__be32		ih_magic;	/* Image Header Magic Number	*/
311 	__be32		ih_hcrc;	/* Image Header CRC Checksum	*/
312 	__be32		ih_time;	/* Image Creation Timestamp	*/
313 	__be32		ih_size;	/* Image Data Size		*/
314 	__be32		ih_load;	/* Data	 Load  Address		*/
315 	__be32		ih_ep;		/* Entry Point Address		*/
316 	__be32		ih_dcrc;	/* Image Data CRC Checksum	*/
317 	uint8_t		ih_os;		/* Operating System		*/
318 	uint8_t		ih_arch;	/* CPU architecture		*/
319 	uint8_t		ih_type;	/* Image Type			*/
320 	uint8_t		ih_comp;	/* Compression Type		*/
321 	uint8_t		ih_name[IH_NMLEN];	/* Image Name		*/
322 } image_header_t;
323 
324 typedef struct image_info {
325 	ulong		start, end;		/* start/end of blob */
326 	ulong		image_start, image_len; /* start of image within blob, len of image */
327 	ulong		load;			/* load addr for the image */
328 	uint8_t		comp, type, os;		/* compression, type of image, os type */
329 	uint8_t		arch;			/* CPU architecture */
330 } image_info_t;
331 
332 /*
333  * Legacy and FIT format headers used by do_bootm() and do_bootm_<os>()
334  * routines.
335  */
336 typedef struct bootm_headers {
337 	/*
338 	 * Legacy os image header, if it is a multi component image
339 	 * then boot_get_ramdisk() and get_fdt() will attempt to get
340 	 * data from second and third component accordingly.
341 	 */
342 	image_header_t	*legacy_hdr_os;		/* image header pointer */
343 	image_header_t	legacy_hdr_os_copy;	/* header copy */
344 	ulong		legacy_hdr_valid;
345 
346 #if IMAGE_ENABLE_FIT
347 	const char	*fit_uname_cfg;	/* configuration node unit name */
348 
349 	void		*fit_hdr_os;	/* os FIT image header */
350 	const char	*fit_uname_os;	/* os subimage node unit name */
351 	int		fit_noffset_os;	/* os subimage node offset */
352 
353 	void		*fit_hdr_rd;	/* init ramdisk FIT image header */
354 	const char	*fit_uname_rd;	/* init ramdisk subimage node unit name */
355 	int		fit_noffset_rd;	/* init ramdisk subimage node offset */
356 
357 	void		*fit_hdr_fdt;	/* FDT blob FIT image header */
358 	const char	*fit_uname_fdt;	/* FDT blob subimage node unit name */
359 	int		fit_noffset_fdt;/* FDT blob subimage node offset */
360 
361 	void		*fit_hdr_setup;	/* x86 setup FIT image header */
362 	const char	*fit_uname_setup; /* x86 setup subimage node name */
363 	int		fit_noffset_setup;/* x86 setup subimage node offset */
364 #endif
365 
366 #ifndef USE_HOSTCC
367 	image_info_t	os;		/* os image info */
368 	ulong		ep;		/* entry point of OS */
369 
370 	ulong		rd_start, rd_end;/* ramdisk start/end */
371 
372 	char		*ft_addr;	/* flat dev tree address */
373 	ulong		ft_len;		/* length of flat device tree */
374 
375 	ulong		initrd_start;
376 	ulong		initrd_end;
377 	ulong		cmdline_start;
378 	ulong		cmdline_end;
379 	bd_t		*kbd;
380 #endif
381 
382 	int		verify;		/* getenv("verify")[0] != 'n' */
383 
384 #define	BOOTM_STATE_START	(0x00000001)
385 #define	BOOTM_STATE_FINDOS	(0x00000002)
386 #define	BOOTM_STATE_FINDOTHER	(0x00000004)
387 #define	BOOTM_STATE_LOADOS	(0x00000008)
388 #define	BOOTM_STATE_RAMDISK	(0x00000010)
389 #define	BOOTM_STATE_FDT		(0x00000020)
390 #define	BOOTM_STATE_OS_CMDLINE	(0x00000040)
391 #define	BOOTM_STATE_OS_BD_T	(0x00000080)
392 #define	BOOTM_STATE_OS_PREP	(0x00000100)
393 #define	BOOTM_STATE_OS_FAKE_GO	(0x00000200)	/* 'Almost' run the OS */
394 #define	BOOTM_STATE_OS_GO	(0x00000400)
395 	int		state;
396 
397 #ifdef CONFIG_LMB
398 	struct lmb	lmb;		/* for memory mgmt */
399 #endif
400 } bootm_headers_t;
401 
402 extern bootm_headers_t images;
403 
404 /*
405  * Some systems (for example LWMON) have very short watchdog periods;
406  * we must make sure to split long operations like memmove() or
407  * checksum calculations into reasonable chunks.
408  */
409 #ifndef CHUNKSZ
410 #define CHUNKSZ (64 * 1024)
411 #endif
412 
413 #ifndef CHUNKSZ_CRC32
414 #define CHUNKSZ_CRC32 (64 * 1024)
415 #endif
416 
417 #ifndef CHUNKSZ_MD5
418 #define CHUNKSZ_MD5 (64 * 1024)
419 #endif
420 
421 #ifndef CHUNKSZ_SHA1
422 #define CHUNKSZ_SHA1 (64 * 1024)
423 #endif
424 
425 #define uimage_to_cpu(x)		be32_to_cpu(x)
426 #define cpu_to_uimage(x)		cpu_to_be32(x)
427 
428 /*
429  * Translation table for entries of a specific type; used by
430  * get_table_entry_id() and get_table_entry_name().
431  */
432 typedef struct table_entry {
433 	int	id;
434 	char	*sname;		/* short (input) name to find table entry */
435 	char	*lname;		/* long (output) name to print for messages */
436 } table_entry_t;
437 
438 /*
439  * get_table_entry_id() scans the translation table trying to find an
440  * entry that matches the given short name. If a matching entry is
441  * found, it's id is returned to the caller.
442  */
443 int get_table_entry_id(const table_entry_t *table,
444 		const char *table_name, const char *name);
445 /*
446  * get_table_entry_name() scans the translation table trying to find
447  * an entry that matches the given id. If a matching entry is found,
448  * its long name is returned to the caller.
449  */
450 char *get_table_entry_name(const table_entry_t *table, char *msg, int id);
451 
452 const char *genimg_get_os_name(uint8_t os);
453 
454 /**
455  * genimg_get_os_short_name() - get the short name for an OS
456  *
457  * @param os	OS (IH_OS_...)
458  * @return OS short name, or "unknown" if unknown
459  */
460 const char *genimg_get_os_short_name(uint8_t comp);
461 
462 const char *genimg_get_arch_name(uint8_t arch);
463 
464 /**
465  * genimg_get_arch_short_name() - get the short name for an architecture
466  *
467  * @param arch	Architecture type (IH_ARCH_...)
468  * @return architecture short name, or "unknown" if unknown
469  */
470 const char *genimg_get_arch_short_name(uint8_t arch);
471 
472 const char *genimg_get_type_name(uint8_t type);
473 
474 /**
475  * genimg_get_type_short_name() - get the short name for an image type
476  *
477  * @param type	Image type (IH_TYPE_...)
478  * @return image short name, or "unknown" if unknown
479  */
480 const char *genimg_get_type_short_name(uint8_t type);
481 
482 const char *genimg_get_comp_name(uint8_t comp);
483 
484 /**
485  * genimg_get_comp_short_name() - get the short name for a compression method
486  *
487  * @param comp	compression method (IH_COMP_...)
488  * @return compression method short name, or "unknown" if unknown
489  */
490 const char *genimg_get_comp_short_name(uint8_t comp);
491 
492 /**
493  * genimg_get_cat_name() - Get the name of an item in a category
494  *
495  * @category:	Category of item
496  * @id:		Item ID
497  * @return name of item, or "Unknown ..." if unknown
498  */
499 const char *genimg_get_cat_name(enum ih_category category, uint id);
500 
501 /**
502  * genimg_get_cat_short_name() - Get the short name of an item in a category
503  *
504  * @category:	Category of item
505  * @id:		Item ID
506  * @return short name of item, or "Unknown ..." if unknown
507  */
508 const char *genimg_get_cat_short_name(enum ih_category category, uint id);
509 
510 /**
511  * genimg_get_cat_count() - Get the number of items in a category
512  *
513  * @category:	Category to check
514  * @return the number of items in the category (IH_xxx_COUNT)
515  */
516 int genimg_get_cat_count(enum ih_category category);
517 
518 /**
519  * genimg_get_cat_desc() - Get the description of a category
520  *
521  * @return the description of a category, e.g. "architecture". This
522  * effectively converts the enum to a string.
523  */
524 const char *genimg_get_cat_desc(enum ih_category category);
525 
526 int genimg_get_os_id(const char *name);
527 int genimg_get_arch_id(const char *name);
528 int genimg_get_type_id(const char *name);
529 int genimg_get_comp_id(const char *name);
530 void genimg_print_size(uint32_t size);
531 
532 #if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE) || \
533 	defined(USE_HOSTCC)
534 #define IMAGE_ENABLE_TIMESTAMP 1
535 #else
536 #define IMAGE_ENABLE_TIMESTAMP 0
537 #endif
538 void genimg_print_time(time_t timestamp);
539 
540 /* What to do with a image load address ('load = <> 'in the FIT) */
541 enum fit_load_op {
542 	FIT_LOAD_IGNORED,	/* Ignore load address */
543 	FIT_LOAD_OPTIONAL,	/* Can be provided, but optional */
544 	FIT_LOAD_OPTIONAL_NON_ZERO,	/* Optional, a value of 0 is ignored */
545 	FIT_LOAD_REQUIRED,	/* Must be provided */
546 };
547 
548 int boot_get_setup(bootm_headers_t *images, uint8_t arch, ulong *setup_start,
549 		   ulong *setup_len);
550 
551 #ifndef USE_HOSTCC
552 /* Image format types, returned by _get_format() routine */
553 #define IMAGE_FORMAT_INVALID	0x00
554 #if defined(CONFIG_IMAGE_FORMAT_LEGACY)
555 #define IMAGE_FORMAT_LEGACY	0x01	/* legacy image_header based format */
556 #endif
557 #define IMAGE_FORMAT_FIT	0x02	/* new, libfdt based format */
558 #define IMAGE_FORMAT_ANDROID	0x03	/* Android boot image */
559 
560 ulong genimg_get_kernel_addr_fit(char * const img_addr,
561 			         const char **fit_uname_config,
562 			         const char **fit_uname_kernel);
563 ulong genimg_get_kernel_addr(char * const img_addr);
564 int genimg_get_format(const void *img_addr);
565 int genimg_has_config(bootm_headers_t *images);
566 ulong genimg_get_image(ulong img_addr);
567 
568 int boot_get_fpga(int argc, char * const argv[], bootm_headers_t *images,
569 		uint8_t arch, const ulong *ld_start, ulong * const ld_len);
570 int boot_get_ramdisk(int argc, char * const argv[], bootm_headers_t *images,
571 		uint8_t arch, ulong *rd_start, ulong *rd_end);
572 
573 /**
574  * boot_get_loadable - routine to load a list of binaries to memory
575  * @argc: Ignored Argument
576  * @argv: Ignored Argument
577  * @images: pointer to the bootm images structure
578  * @arch: expected architecture for the image
579  * @ld_start: Ignored Argument
580  * @ld_len: Ignored Argument
581  *
582  * boot_get_loadable() will take the given FIT configuration, and look
583  * for a field named "loadables".  Loadables, is a list of elements in
584  * the FIT given as strings.  exe:
585  *   loadables = "linux_kernel@1", "fdt@2";
586  * this function will attempt to parse each string, and load the
587  * corresponding element from the FIT into memory.  Once placed,
588  * no aditional actions are taken.
589  *
590  * @return:
591  *     0, if only valid images or no images are found
592  *     error code, if an error occurs during fit_image_load
593  */
594 int boot_get_loadable(int argc, char * const argv[], bootm_headers_t *images,
595 		uint8_t arch, const ulong *ld_start, ulong * const ld_len);
596 #endif /* !USE_HOSTCC */
597 
598 int boot_get_setup_fit(bootm_headers_t *images, uint8_t arch,
599 		       ulong *setup_start, ulong *setup_len);
600 
601 /**
602  * fit_image_load() - load an image from a FIT
603  *
604  * This deals with all aspects of loading an image from a FIT, including
605  * selecting the right image based on configuration, verifying it, printing
606  * out progress messages, checking the type/arch/os and optionally copying it
607  * to the right load address.
608  *
609  * The property to look up is defined by image_type.
610  *
611  * @param images	Boot images structure
612  * @param addr		Address of FIT in memory
613  * @param fit_unamep	On entry this is the requested image name
614  *			(e.g. "kernel@1") or NULL to use the default. On exit
615  *			points to the selected image name
616  * @param fit_uname_configp	On entry this is the requested configuration
617  *			name (e.g. "conf@1") or NULL to use the default. On
618  *			exit points to the selected configuration name.
619  * @param arch		Expected architecture (IH_ARCH_...)
620  * @param image_type	Required image type (IH_TYPE_...). If this is
621  *			IH_TYPE_KERNEL then we allow IH_TYPE_KERNEL_NOLOAD
622  *			also.
623  * @param bootstage_id	ID of starting bootstage to use for progress updates.
624  *			This will be added to the BOOTSTAGE_SUB values when
625  *			calling bootstage_mark()
626  * @param load_op	Decribes what to do with the load address
627  * @param datap		Returns address of loaded image
628  * @param lenp		Returns length of loaded image
629  * @return node offset of image, or -ve error code on error
630  */
631 int fit_image_load(bootm_headers_t *images, ulong addr,
632 		   const char **fit_unamep, const char **fit_uname_configp,
633 		   int arch, int image_type, int bootstage_id,
634 		   enum fit_load_op load_op, ulong *datap, ulong *lenp);
635 
636 #ifndef USE_HOSTCC
637 /**
638  * fit_get_node_from_config() - Look up an image a FIT by type
639  *
640  * This looks in the selected conf@ node (images->fit_uname_cfg) for a
641  * particular image type (e.g. "kernel") and then finds the image that is
642  * referred to.
643  *
644  * For example, for something like:
645  *
646  * images {
647  *	kernel@1 {
648  *		...
649  *	};
650  * };
651  * configurations {
652  *	conf@1 {
653  *		kernel = "kernel@1";
654  *	};
655  * };
656  *
657  * the function will return the node offset of the kernel@1 node, assuming
658  * that conf@1 is the chosen configuration.
659  *
660  * @param images	Boot images structure
661  * @param prop_name	Property name to look up (FIT_..._PROP)
662  * @param addr		Address of FIT in memory
663  */
664 int fit_get_node_from_config(bootm_headers_t *images, const char *prop_name,
665 			ulong addr);
666 
667 int boot_get_fdt(int flag, int argc, char * const argv[], uint8_t arch,
668 		 bootm_headers_t *images,
669 		 char **of_flat_tree, ulong *of_size);
670 void boot_fdt_add_mem_rsv_regions(struct lmb *lmb, void *fdt_blob);
671 int boot_relocate_fdt(struct lmb *lmb, char **of_flat_tree, ulong *of_size);
672 
673 int boot_ramdisk_high(struct lmb *lmb, ulong rd_data, ulong rd_len,
674 		  ulong *initrd_start, ulong *initrd_end);
675 int boot_get_cmdline(struct lmb *lmb, ulong *cmd_start, ulong *cmd_end);
676 #ifdef CONFIG_SYS_BOOT_GET_KBD
677 int boot_get_kbd(struct lmb *lmb, bd_t **kbd);
678 #endif /* CONFIG_SYS_BOOT_GET_KBD */
679 #endif /* !USE_HOSTCC */
680 
681 /*******************************************************************/
682 /* Legacy format specific code (prefixed with image_) */
683 /*******************************************************************/
684 static inline uint32_t image_get_header_size(void)
685 {
686 	return (sizeof(image_header_t));
687 }
688 
689 #define image_get_hdr_l(f) \
690 	static inline uint32_t image_get_##f(const image_header_t *hdr) \
691 	{ \
692 		return uimage_to_cpu(hdr->ih_##f); \
693 	}
694 image_get_hdr_l(magic)		/* image_get_magic */
695 image_get_hdr_l(hcrc)		/* image_get_hcrc */
696 image_get_hdr_l(time)		/* image_get_time */
697 image_get_hdr_l(size)		/* image_get_size */
698 image_get_hdr_l(load)		/* image_get_load */
699 image_get_hdr_l(ep)		/* image_get_ep */
700 image_get_hdr_l(dcrc)		/* image_get_dcrc */
701 
702 #define image_get_hdr_b(f) \
703 	static inline uint8_t image_get_##f(const image_header_t *hdr) \
704 	{ \
705 		return hdr->ih_##f; \
706 	}
707 image_get_hdr_b(os)		/* image_get_os */
708 image_get_hdr_b(arch)		/* image_get_arch */
709 image_get_hdr_b(type)		/* image_get_type */
710 image_get_hdr_b(comp)		/* image_get_comp */
711 
712 static inline char *image_get_name(const image_header_t *hdr)
713 {
714 	return (char *)hdr->ih_name;
715 }
716 
717 static inline uint32_t image_get_data_size(const image_header_t *hdr)
718 {
719 	return image_get_size(hdr);
720 }
721 
722 /**
723  * image_get_data - get image payload start address
724  * @hdr: image header
725  *
726  * image_get_data() returns address of the image payload. For single
727  * component images it is image data start. For multi component
728  * images it points to the null terminated table of sub-images sizes.
729  *
730  * returns:
731  *     image payload data start address
732  */
733 static inline ulong image_get_data(const image_header_t *hdr)
734 {
735 	return ((ulong)hdr + image_get_header_size());
736 }
737 
738 static inline uint32_t image_get_image_size(const image_header_t *hdr)
739 {
740 	return (image_get_size(hdr) + image_get_header_size());
741 }
742 static inline ulong image_get_image_end(const image_header_t *hdr)
743 {
744 	return ((ulong)hdr + image_get_image_size(hdr));
745 }
746 
747 #define image_set_hdr_l(f) \
748 	static inline void image_set_##f(image_header_t *hdr, uint32_t val) \
749 	{ \
750 		hdr->ih_##f = cpu_to_uimage(val); \
751 	}
752 image_set_hdr_l(magic)		/* image_set_magic */
753 image_set_hdr_l(hcrc)		/* image_set_hcrc */
754 image_set_hdr_l(time)		/* image_set_time */
755 image_set_hdr_l(size)		/* image_set_size */
756 image_set_hdr_l(load)		/* image_set_load */
757 image_set_hdr_l(ep)		/* image_set_ep */
758 image_set_hdr_l(dcrc)		/* image_set_dcrc */
759 
760 #define image_set_hdr_b(f) \
761 	static inline void image_set_##f(image_header_t *hdr, uint8_t val) \
762 	{ \
763 		hdr->ih_##f = val; \
764 	}
765 image_set_hdr_b(os)		/* image_set_os */
766 image_set_hdr_b(arch)		/* image_set_arch */
767 image_set_hdr_b(type)		/* image_set_type */
768 image_set_hdr_b(comp)		/* image_set_comp */
769 
770 static inline void image_set_name(image_header_t *hdr, const char *name)
771 {
772 	strncpy(image_get_name(hdr), name, IH_NMLEN);
773 }
774 
775 int image_check_hcrc(const image_header_t *hdr);
776 int image_check_dcrc(const image_header_t *hdr);
777 #ifndef USE_HOSTCC
778 ulong getenv_bootm_low(void);
779 phys_size_t getenv_bootm_size(void);
780 phys_size_t getenv_bootm_mapsize(void);
781 #endif
782 void memmove_wd(void *to, void *from, size_t len, ulong chunksz);
783 
784 static inline int image_check_magic(const image_header_t *hdr)
785 {
786 	return (image_get_magic(hdr) == IH_MAGIC);
787 }
788 static inline int image_check_type(const image_header_t *hdr, uint8_t type)
789 {
790 	return (image_get_type(hdr) == type);
791 }
792 static inline int image_check_arch(const image_header_t *hdr, uint8_t arch)
793 {
794 	return (image_get_arch(hdr) == arch);
795 }
796 static inline int image_check_os(const image_header_t *hdr, uint8_t os)
797 {
798 	return (image_get_os(hdr) == os);
799 }
800 
801 ulong image_multi_count(const image_header_t *hdr);
802 void image_multi_getimg(const image_header_t *hdr, ulong idx,
803 			ulong *data, ulong *len);
804 
805 void image_print_contents(const void *hdr);
806 
807 #ifndef USE_HOSTCC
808 static inline int image_check_target_arch(const image_header_t *hdr)
809 {
810 #ifndef IH_ARCH_DEFAULT
811 # error "please define IH_ARCH_DEFAULT in your arch asm/u-boot.h"
812 #endif
813 	return image_check_arch(hdr, IH_ARCH_DEFAULT);
814 }
815 #endif /* USE_HOSTCC */
816 
817 /**
818  * Set up properties in the FDT
819  *
820  * This sets up properties in the FDT that is to be passed to linux.
821  *
822  * @images:	Images information
823  * @blob:	FDT to update
824  * @of_size:	Size of the FDT
825  * @lmb:	Points to logical memory block structure
826  * @return 0 if ok, <0 on failure
827  */
828 int image_setup_libfdt(bootm_headers_t *images, void *blob,
829 		       int of_size, struct lmb *lmb);
830 
831 /**
832  * Set up the FDT to use for booting a kernel
833  *
834  * This performs ramdisk setup, sets up the FDT if required, and adds
835  * paramters to the FDT if libfdt is available.
836  *
837  * @param images	Images information
838  * @return 0 if ok, <0 on failure
839  */
840 int image_setup_linux(bootm_headers_t *images);
841 
842 /**
843  * bootz_setup() - Extract stat and size of a Linux xImage
844  *
845  * @image: Address of image
846  * @start: Returns start address of image
847  * @end : Returns end address of image
848  * @return 0 if OK, 1 if the image was not recognised
849  */
850 int bootz_setup(ulong image, ulong *start, ulong *end);
851 
852 
853 /*******************************************************************/
854 /* New uImage format specific code (prefixed with fit_) */
855 /*******************************************************************/
856 
857 #define FIT_IMAGES_PATH		"/images"
858 #define FIT_CONFS_PATH		"/configurations"
859 
860 /* hash/signature node */
861 #define FIT_HASH_NODENAME	"hash"
862 #define FIT_ALGO_PROP		"algo"
863 #define FIT_VALUE_PROP		"value"
864 #define FIT_IGNORE_PROP		"uboot-ignore"
865 #define FIT_SIG_NODENAME	"signature"
866 
867 /* image node */
868 #define FIT_DATA_PROP		"data"
869 #define FIT_DATA_OFFSET_PROP	"data-offset"
870 #define FIT_DATA_SIZE_PROP	"data-size"
871 #define FIT_TIMESTAMP_PROP	"timestamp"
872 #define FIT_DESC_PROP		"description"
873 #define FIT_ARCH_PROP		"arch"
874 #define FIT_TYPE_PROP		"type"
875 #define FIT_OS_PROP		"os"
876 #define FIT_COMP_PROP		"compression"
877 #define FIT_ENTRY_PROP		"entry"
878 #define FIT_LOAD_PROP		"load"
879 
880 /* configuration node */
881 #define FIT_KERNEL_PROP		"kernel"
882 #define FIT_RAMDISK_PROP	"ramdisk"
883 #define FIT_FDT_PROP		"fdt"
884 #define FIT_LOADABLE_PROP	"loadables"
885 #define FIT_DEFAULT_PROP	"default"
886 #define FIT_SETUP_PROP		"setup"
887 #define FIT_FPGA_PROP		"fpga"
888 
889 #define FIT_MAX_HASH_LEN	HASH_MAX_DIGEST_SIZE
890 
891 #if IMAGE_ENABLE_FIT
892 /* cmdline argument format parsing */
893 int fit_parse_conf(const char *spec, ulong addr_curr,
894 		ulong *addr, const char **conf_name);
895 int fit_parse_subimage(const char *spec, ulong addr_curr,
896 		ulong *addr, const char **image_name);
897 
898 int fit_get_subimage_count(const void *fit, int images_noffset);
899 void fit_print_contents(const void *fit);
900 void fit_image_print(const void *fit, int noffset, const char *p);
901 
902 /**
903  * fit_get_end - get FIT image size
904  * @fit: pointer to the FIT format image header
905  *
906  * returns:
907  *     size of the FIT image (blob) in memory
908  */
909 static inline ulong fit_get_size(const void *fit)
910 {
911 	return fdt_totalsize(fit);
912 }
913 
914 /**
915  * fit_get_end - get FIT image end
916  * @fit: pointer to the FIT format image header
917  *
918  * returns:
919  *     end address of the FIT image (blob) in memory
920  */
921 ulong fit_get_end(const void *fit);
922 
923 /**
924  * fit_get_name - get FIT node name
925  * @fit: pointer to the FIT format image header
926  *
927  * returns:
928  *     NULL, on error
929  *     pointer to node name, on success
930  */
931 static inline const char *fit_get_name(const void *fit_hdr,
932 		int noffset, int *len)
933 {
934 	return fdt_get_name(fit_hdr, noffset, len);
935 }
936 
937 int fit_get_desc(const void *fit, int noffset, char **desc);
938 int fit_get_timestamp(const void *fit, int noffset, time_t *timestamp);
939 
940 int fit_image_get_node(const void *fit, const char *image_uname);
941 int fit_image_get_os(const void *fit, int noffset, uint8_t *os);
942 int fit_image_get_arch(const void *fit, int noffset, uint8_t *arch);
943 int fit_image_get_type(const void *fit, int noffset, uint8_t *type);
944 int fit_image_get_comp(const void *fit, int noffset, uint8_t *comp);
945 int fit_image_get_load(const void *fit, int noffset, ulong *load);
946 int fit_image_get_entry(const void *fit, int noffset, ulong *entry);
947 int fit_image_get_data(const void *fit, int noffset,
948 				const void **data, size_t *size);
949 int fit_image_get_data_offset(const void *fit, int noffset, int *data_offset);
950 int fit_image_get_data_size(const void *fit, int noffset, int *data_size);
951 
952 int fit_image_hash_get_algo(const void *fit, int noffset, char **algo);
953 int fit_image_hash_get_value(const void *fit, int noffset, uint8_t **value,
954 				int *value_len);
955 
956 int fit_set_timestamp(void *fit, int noffset, time_t timestamp);
957 
958 /**
959  * fit_add_verification_data() - add verification data to FIT image nodes
960  *
961  * @keydir:	Directory containing keys
962  * @kwydest:	FDT blob to write public key information to
963  * @fit:	Pointer to the FIT format image header
964  * @comment:	Comment to add to signature nodes
965  * @require_keys: Mark all keys as 'required'
966  * @engine_id:	Engine to use for signing
967  *
968  * Adds hash values for all component images in the FIT blob.
969  * Hashes are calculated for all component images which have hash subnodes
970  * with algorithm property set to one of the supported hash algorithms.
971  *
972  * Also add signatures if signature nodes are present.
973  *
974  * returns
975  *     0, on success
976  *     libfdt error code, on failure
977  */
978 int fit_add_verification_data(const char *keydir, void *keydest, void *fit,
979 			      const char *comment, int require_keys,
980 			      const char *engine_id);
981 
982 int fit_image_verify(const void *fit, int noffset);
983 int fit_config_verify(const void *fit, int conf_noffset);
984 int fit_all_image_verify(const void *fit);
985 int fit_image_check_os(const void *fit, int noffset, uint8_t os);
986 int fit_image_check_arch(const void *fit, int noffset, uint8_t arch);
987 int fit_image_check_type(const void *fit, int noffset, uint8_t type);
988 int fit_image_check_comp(const void *fit, int noffset, uint8_t comp);
989 int fit_check_format(const void *fit);
990 
991 int fit_conf_find_compat(const void *fit, const void *fdt);
992 int fit_conf_get_node(const void *fit, const char *conf_uname);
993 
994 /**
995  * fit_conf_get_prop_node() - Get node refered to by a configuration
996  * @fit:	FIT to check
997  * @noffset:	Offset of conf@xxx node to check
998  * @prop_name:	Property to read from the conf node
999  *
1000  * The conf@ nodes contain references to other nodes, using properties
1001  * like 'kernel = "kernel@1"'. Given such a property name (e.g. "kernel"),
1002  * return the offset of the node referred to (e.g. offset of node
1003  * "/images/kernel@1".
1004  */
1005 int fit_conf_get_prop_node(const void *fit, int noffset,
1006 		const char *prop_name);
1007 
1008 void fit_conf_print(const void *fit, int noffset, const char *p);
1009 
1010 int fit_check_ramdisk(const void *fit, int os_noffset,
1011 		uint8_t arch, int verify);
1012 
1013 int calculate_hash(const void *data, int data_len, const char *algo,
1014 			uint8_t *value, int *value_len);
1015 
1016 /*
1017  * At present we only support signing on the host, and verification on the
1018  * device
1019  */
1020 #if defined(CONFIG_FIT_SIGNATURE)
1021 # ifdef USE_HOSTCC
1022 #  define IMAGE_ENABLE_SIGN	1
1023 #  define IMAGE_ENABLE_VERIFY	1
1024 # include  <openssl/evp.h>
1025 #else
1026 #  define IMAGE_ENABLE_SIGN	0
1027 #  define IMAGE_ENABLE_VERIFY	1
1028 # endif
1029 #else
1030 # define IMAGE_ENABLE_SIGN	0
1031 # define IMAGE_ENABLE_VERIFY	0
1032 #endif
1033 
1034 #ifdef USE_HOSTCC
1035 void *image_get_host_blob(void);
1036 void image_set_host_blob(void *host_blob);
1037 # define gd_fdt_blob()		image_get_host_blob()
1038 #else
1039 # define gd_fdt_blob()		(gd->fdt_blob)
1040 #endif
1041 
1042 #ifdef CONFIG_FIT_BEST_MATCH
1043 #define IMAGE_ENABLE_BEST_MATCH	1
1044 #else
1045 #define IMAGE_ENABLE_BEST_MATCH	0
1046 #endif
1047 
1048 /* Information passed to the signing routines */
1049 struct image_sign_info {
1050 	const char *keydir;		/* Directory conaining keys */
1051 	const char *keyname;		/* Name of key to use */
1052 	void *fit;			/* Pointer to FIT blob */
1053 	int node_offset;		/* Offset of signature node */
1054 	const char *name;		/* Algorithm name */
1055 	struct checksum_algo *checksum;	/* Checksum algorithm information */
1056 	struct crypto_algo *crypto;	/* Crypto algorithm information */
1057 	const void *fdt_blob;		/* FDT containing public keys */
1058 	int required_keynode;		/* Node offset of key to use: -1=any */
1059 	const char *require_keys;	/* Value for 'required' property */
1060 	const char *engine_id;		/* Engine to use for signing */
1061 };
1062 #endif /* Allow struct image_region to always be defined for rsa.h */
1063 
1064 /* A part of an image, used for hashing */
1065 struct image_region {
1066 	const void *data;
1067 	int size;
1068 };
1069 
1070 #if IMAGE_ENABLE_FIT
1071 
1072 #if IMAGE_ENABLE_VERIFY
1073 # include <u-boot/rsa-checksum.h>
1074 #endif
1075 struct checksum_algo {
1076 	const char *name;
1077 	const int checksum_len;
1078 	const int der_len;
1079 	const uint8_t *der_prefix;
1080 #if IMAGE_ENABLE_SIGN
1081 	const EVP_MD *(*calculate_sign)(void);
1082 #endif
1083 	int (*calculate)(const char *name,
1084 			 const struct image_region region[],
1085 			 int region_count, uint8_t *checksum);
1086 };
1087 
1088 struct crypto_algo {
1089 	const char *name;		/* Name of algorithm */
1090 	const int key_len;
1091 
1092 	/**
1093 	 * sign() - calculate and return signature for given input data
1094 	 *
1095 	 * @info:	Specifies key and FIT information
1096 	 * @data:	Pointer to the input data
1097 	 * @data_len:	Data length
1098 	 * @sigp:	Set to an allocated buffer holding the signature
1099 	 * @sig_len:	Set to length of the calculated hash
1100 	 *
1101 	 * This computes input data signature according to selected algorithm.
1102 	 * Resulting signature value is placed in an allocated buffer, the
1103 	 * pointer is returned as *sigp. The length of the calculated
1104 	 * signature is returned via the sig_len pointer argument. The caller
1105 	 * should free *sigp.
1106 	 *
1107 	 * @return: 0, on success, -ve on error
1108 	 */
1109 	int (*sign)(struct image_sign_info *info,
1110 		    const struct image_region region[],
1111 		    int region_count, uint8_t **sigp, uint *sig_len);
1112 
1113 	/**
1114 	 * add_verify_data() - Add verification information to FDT
1115 	 *
1116 	 * Add public key information to the FDT node, suitable for
1117 	 * verification at run-time. The information added depends on the
1118 	 * algorithm being used.
1119 	 *
1120 	 * @info:	Specifies key and FIT information
1121 	 * @keydest:	Destination FDT blob for public key data
1122 	 * @return: 0, on success, -ve on error
1123 	 */
1124 	int (*add_verify_data)(struct image_sign_info *info, void *keydest);
1125 
1126 	/**
1127 	 * verify() - Verify a signature against some data
1128 	 *
1129 	 * @info:	Specifies key and FIT information
1130 	 * @data:	Pointer to the input data
1131 	 * @data_len:	Data length
1132 	 * @sig:	Signature
1133 	 * @sig_len:	Number of bytes in signature
1134 	 * @return 0 if verified, -ve on error
1135 	 */
1136 	int (*verify)(struct image_sign_info *info,
1137 		      const struct image_region region[], int region_count,
1138 		      uint8_t *sig, uint sig_len);
1139 };
1140 
1141 /**
1142  * image_get_checksum_algo() - Look up a checksum algorithm
1143  *
1144  * @param full_name	Name of algorithm in the form "checksum,crypto"
1145  * @return pointer to algorithm information, or NULL if not found
1146  */
1147 struct checksum_algo *image_get_checksum_algo(const char *full_name);
1148 
1149 /**
1150  * image_get_crypto_algo() - Look up a cryptosystem algorithm
1151  *
1152  * @param full_name	Name of algorithm in the form "checksum,crypto"
1153  * @return pointer to algorithm information, or NULL if not found
1154  */
1155 struct crypto_algo *image_get_crypto_algo(const char *full_name);
1156 
1157 /**
1158  * fit_image_verify_required_sigs() - Verify signatures marked as 'required'
1159  *
1160  * @fit:		FIT to check
1161  * @image_noffset:	Offset of image node to check
1162  * @data:		Image data to check
1163  * @size:		Size of image data
1164  * @sig_blob:		FDT containing public keys
1165  * @no_sigsp:		Returns 1 if no signatures were required, and
1166  *			therefore nothing was checked. The caller may wish
1167  *			to fall back to other mechanisms, or refuse to
1168  *			boot.
1169  * @return 0 if all verified ok, <0 on error
1170  */
1171 int fit_image_verify_required_sigs(const void *fit, int image_noffset,
1172 		const char *data, size_t size, const void *sig_blob,
1173 		int *no_sigsp);
1174 
1175 /**
1176  * fit_image_check_sig() - Check a single image signature node
1177  *
1178  * @fit:		FIT to check
1179  * @noffset:		Offset of signature node to check
1180  * @data:		Image data to check
1181  * @size:		Size of image data
1182  * @required_keynode:	Offset in the control FDT of the required key node,
1183  *			if any. If this is given, then the image wil not
1184  *			pass verification unless that key is used. If this is
1185  *			-1 then any signature will do.
1186  * @err_msgp:		In the event of an error, this will be pointed to a
1187  *			help error string to display to the user.
1188  * @return 0 if all verified ok, <0 on error
1189  */
1190 int fit_image_check_sig(const void *fit, int noffset, const void *data,
1191 		size_t size, int required_keynode, char **err_msgp);
1192 
1193 /**
1194  * fit_region_make_list() - Make a list of regions to hash
1195  *
1196  * Given a list of FIT regions (offset, size) provided by libfdt, create
1197  * a list of regions (void *, size) for use by the signature creationg
1198  * and verification code.
1199  *
1200  * @fit:		FIT image to process
1201  * @fdt_regions:	Regions as returned by libfdt
1202  * @count:		Number of regions returned by libfdt
1203  * @region:		Place to put list of regions (NULL to allocate it)
1204  * @return pointer to list of regions, or NULL if out of memory
1205  */
1206 struct image_region *fit_region_make_list(const void *fit,
1207 		struct fdt_region *fdt_regions, int count,
1208 		struct image_region *region);
1209 
1210 static inline int fit_image_check_target_arch(const void *fdt, int node)
1211 {
1212 #ifndef USE_HOSTCC
1213 	return fit_image_check_arch(fdt, node, IH_ARCH_DEFAULT);
1214 #else
1215 	return 0;
1216 #endif
1217 }
1218 
1219 #ifdef CONFIG_FIT_VERBOSE
1220 #define fit_unsupported(msg)	printf("! %s:%d " \
1221 				"FIT images not supported for '%s'\n", \
1222 				__FILE__, __LINE__, (msg))
1223 
1224 #define fit_unsupported_reset(msg)	printf("! %s:%d " \
1225 				"FIT images not supported for '%s' " \
1226 				"- must reset board to recover!\n", \
1227 				__FILE__, __LINE__, (msg))
1228 #else
1229 #define fit_unsupported(msg)
1230 #define fit_unsupported_reset(msg)
1231 #endif /* CONFIG_FIT_VERBOSE */
1232 #endif /* CONFIG_FIT */
1233 
1234 #if defined(CONFIG_ANDROID_BOOT_IMAGE)
1235 struct andr_img_hdr;
1236 int android_image_check_header(const struct andr_img_hdr *hdr);
1237 int android_image_get_kernel(const struct andr_img_hdr *hdr, int verify,
1238 			     ulong *os_data, ulong *os_len);
1239 int android_image_get_ramdisk(const struct andr_img_hdr *hdr,
1240 			      ulong *rd_data, ulong *rd_len);
1241 ulong android_image_get_end(const struct andr_img_hdr *hdr);
1242 ulong android_image_get_kload(const struct andr_img_hdr *hdr);
1243 void android_print_contents(const struct andr_img_hdr *hdr);
1244 
1245 #endif /* CONFIG_ANDROID_BOOT_IMAGE */
1246 
1247 /**
1248  * board_fit_config_name_match() - Check for a matching board name
1249  *
1250  * This is used when SPL loads a FIT containing multiple device tree files
1251  * and wants to work out which one to use. The description of each one is
1252  * passed to this function. The description comes from the 'description' field
1253  * in each (FDT) image node.
1254  *
1255  * @name: Device tree description
1256  * @return 0 if this device tree should be used, non-zero to try the next
1257  */
1258 int board_fit_config_name_match(const char *name);
1259 
1260 #ifdef CONFIG_SPL_FIT_IMAGE_POST_PROCESS
1261 /**
1262  * board_fit_image_post_process() - Do any post-process on FIT binary data
1263  *
1264  * This is used to do any sort of image manipulation, verification, decryption
1265  * etc. in a platform or board specific way. Obviously, anything done here would
1266  * need to be comprehended in how the images were prepared before being injected
1267  * into the FIT creation (i.e. the binary blobs would have been pre-processed
1268  * before being added to the FIT image).
1269  *
1270  * @image: pointer to the image start pointer
1271  * @size: pointer to the image size
1272  * @return no return value (failure should be handled internally)
1273  */
1274 void board_fit_image_post_process(void **p_image, size_t *p_size);
1275 #endif /* CONFIG_SPL_FIT_IMAGE_POST_PROCESS */
1276 
1277 /**
1278  * Mapping of image types to function handlers to be invoked on the associated
1279  * loaded images
1280  *
1281  * @type: Type of image, I.E. IH_TYPE_*
1282  * @handler: Function to call on loaded image
1283  */
1284 struct fit_loadable_tbl {
1285 	int type;
1286 	/**
1287 	 * handler() - Process a loaded image
1288 	 *
1289 	 * @data: Pointer to start of loaded image data
1290 	 * @size: Size of loaded image data
1291 	 */
1292 	void (*handler)(ulong data, size_t size);
1293 };
1294 
1295 /*
1296  * Define a FIT loadable image type handler
1297  *
1298  * _type is a valid uimage_type ID as defined in the "Image Type" enum above
1299  * _handler is the handler function to call after this image type is loaded
1300  */
1301 #define U_BOOT_FIT_LOADABLE_HANDLER(_type, _handler) \
1302 	ll_entry_declare(struct fit_loadable_tbl, _function, fit_loadable) = { \
1303 		.type = _type, \
1304 		.handler = _handler, \
1305 	}
1306 
1307 #endif	/* __IMAGE_H__ */
1308