1 // SPDX-License-Identifier: GPL-2.0+
2 /*
3  * (C) Copyright 2008 Semihalf
4  *
5  * (C) Copyright 2000-2006
6  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
7  */
8 
9 #ifndef USE_HOSTCC
10 #include <common.h>
11 #include <env.h>
12 #include <display_options.h>
13 #include <init.h>
14 #include <lmb.h>
15 #include <log.h>
16 #include <malloc.h>
17 #include <u-boot/crc.h>
18 
19 #ifdef CONFIG_SHOW_BOOT_PROGRESS
20 #include <status_led.h>
21 #endif
22 
23 #if CONFIG_IS_ENABLED(FIT) || CONFIG_IS_ENABLED(OF_LIBFDT)
24 #include <linux/libfdt.h>
25 #include <fdt_support.h>
26 #endif
27 
28 #include <asm/global_data.h>
29 #include <u-boot/md5.h>
30 #include <u-boot/sha1.h>
31 #include <linux/errno.h>
32 #include <asm/io.h>
33 
34 DECLARE_GLOBAL_DATA_PTR;
35 
36 /* Set this if we have less than 4 MB of malloc() space */
37 #if CONFIG_SYS_MALLOC_LEN < (4096 * 1024)
38 #define CONSERVE_MEMORY		true
39 #else
40 #define CONSERVE_MEMORY		false
41 #endif
42 
43 #else /* USE_HOSTCC */
44 #include "mkimage.h"
45 #include <u-boot/md5.h>
46 #include <time.h>
47 
48 #ifndef __maybe_unused
49 # define __maybe_unused		/* unimplemented */
50 #endif
51 
52 #define CONSERVE_MEMORY		false
53 
54 #endif /* !USE_HOSTCC*/
55 
56 #include <abuf.h>
57 #include <bzlib.h>
58 #include <display_options.h>
59 #include <gzip.h>
60 #include <image.h>
61 #include <imximage.h>
62 #include <relocate.h>
63 #include <linux/lzo.h>
64 #include <linux/zstd.h>
65 #include <linux/kconfig.h>
66 #include <lzma/LzmaTypes.h>
67 #include <lzma/LzmaDec.h>
68 #include <lzma/LzmaTools.h>
69 #include <u-boot/crc.h>
70 #include <u-boot/lz4.h>
71 
72 static const table_entry_t uimage_arch[] = {
73 	{	IH_ARCH_INVALID,	"invalid",	"Invalid ARCH",	},
74 	{	IH_ARCH_ALPHA,		"alpha",	"Alpha",	},
75 	{	IH_ARCH_ARM,		"arm",		"ARM",		},
76 	{	IH_ARCH_I386,		"x86",		"Intel x86",	},
77 	{	IH_ARCH_IA64,		"ia64",		"IA64",		},
78 	{	IH_ARCH_M68K,		"m68k",		"M68K",		},
79 	{	IH_ARCH_MICROBLAZE,	"microblaze",	"MicroBlaze",	},
80 	{	IH_ARCH_MIPS,		"mips",		"MIPS",		},
81 	{	IH_ARCH_MIPS64,		"mips64",	"MIPS 64 Bit",	},
82 	{	IH_ARCH_NIOS2,		"nios2",	"NIOS II",	},
83 	{	IH_ARCH_PPC,		"powerpc",	"PowerPC",	},
84 	{	IH_ARCH_PPC,		"ppc",		"PowerPC",	},
85 	{	IH_ARCH_S390,		"s390",		"IBM S390",	},
86 	{	IH_ARCH_SH,		"sh",		"SuperH",	},
87 	{	IH_ARCH_SPARC,		"sparc",	"SPARC",	},
88 	{	IH_ARCH_SPARC64,	"sparc64",	"SPARC 64 Bit",	},
89 	{	IH_ARCH_BLACKFIN,	"blackfin",	"Blackfin",	},
90 	{	IH_ARCH_AVR32,		"avr32",	"AVR32",	},
91 	{	IH_ARCH_NDS32,		"nds32",	"NDS32",	},
92 	{	IH_ARCH_OPENRISC,	"or1k",		"OpenRISC 1000",},
93 	{	IH_ARCH_SANDBOX,	"sandbox",	"Sandbox",	},
94 	{	IH_ARCH_ARM64,		"arm64",	"AArch64",	},
95 	{	IH_ARCH_ARC,		"arc",		"ARC",		},
96 	{	IH_ARCH_X86_64,		"x86_64",	"AMD x86_64",	},
97 	{	IH_ARCH_XTENSA,		"xtensa",	"Xtensa",	},
98 	{	IH_ARCH_RISCV,		"riscv",	"RISC-V",	},
99 	{	-1,			"",		"",		},
100 };
101 
102 static const table_entry_t uimage_os[] = {
103 	{	IH_OS_INVALID,	"invalid",	"Invalid OS",		},
104 	{       IH_OS_ARM_TRUSTED_FIRMWARE, "arm-trusted-firmware", "ARM Trusted Firmware"  },
105 	{	IH_OS_LINUX,	"linux",	"Linux",		},
106 	{	IH_OS_NETBSD,	"netbsd",	"NetBSD",		},
107 	{	IH_OS_OSE,	"ose",		"Enea OSE",		},
108 	{	IH_OS_PLAN9,	"plan9",	"Plan 9",		},
109 	{	IH_OS_RTEMS,	"rtems",	"RTEMS",		},
110 	{	IH_OS_TEE,	"tee",		"Trusted Execution Environment" },
111 	{	IH_OS_U_BOOT,	"u-boot",	"U-Boot",		},
112 	{	IH_OS_VXWORKS,	"vxworks",	"VxWorks",		},
113 #if defined(CONFIG_CMD_ELF) || defined(USE_HOSTCC)
114 	{	IH_OS_QNX,	"qnx",		"QNX",			},
115 #endif
116 #if defined(CONFIG_INTEGRITY) || defined(USE_HOSTCC)
117 	{	IH_OS_INTEGRITY,"integrity",	"INTEGRITY",		},
118 #endif
119 #ifdef USE_HOSTCC
120 	{	IH_OS_4_4BSD,	"4_4bsd",	"4_4BSD",		},
121 	{	IH_OS_DELL,	"dell",		"Dell",			},
122 	{	IH_OS_ESIX,	"esix",		"Esix",			},
123 	{	IH_OS_FREEBSD,	"freebsd",	"FreeBSD",		},
124 	{	IH_OS_IRIX,	"irix",		"Irix",			},
125 	{	IH_OS_NCR,	"ncr",		"NCR",			},
126 	{	IH_OS_OPENBSD,	"openbsd",	"OpenBSD",		},
127 	{	IH_OS_PSOS,	"psos",		"pSOS",			},
128 	{	IH_OS_SCO,	"sco",		"SCO",			},
129 	{	IH_OS_SOLARIS,	"solaris",	"Solaris",		},
130 	{	IH_OS_SVR4,	"svr4",		"SVR4",			},
131 #endif
132 #if defined(CONFIG_BOOTM_OPENRTOS) || defined(USE_HOSTCC)
133 	{	IH_OS_OPENRTOS,	"openrtos",	"OpenRTOS",		},
134 #endif
135 	{	IH_OS_OPENSBI,	"opensbi",	"RISC-V OpenSBI",	},
136 	{	IH_OS_EFI,	"efi",		"EFI Firmware" },
137 
138 	{	-1,		"",		"",			},
139 };
140 
141 static const table_entry_t uimage_type[] = {
142 	{	IH_TYPE_AISIMAGE,   "aisimage",   "Davinci AIS image",},
143 	{	IH_TYPE_FILESYSTEM, "filesystem", "Filesystem Image",	},
144 	{	IH_TYPE_FIRMWARE,   "firmware",	  "Firmware",		},
145 	{	IH_TYPE_FLATDT,     "flat_dt",    "Flat Device Tree",	},
146 	{	IH_TYPE_GPIMAGE,    "gpimage",    "TI Keystone SPL Image",},
147 	{	IH_TYPE_KERNEL,	    "kernel",	  "Kernel Image",	},
148 	{	IH_TYPE_KERNEL_NOLOAD, "kernel_noload",  "Kernel Image (no loading done)", },
149 	{	IH_TYPE_KWBIMAGE,   "kwbimage",   "Kirkwood Boot Image",},
150 	{	IH_TYPE_IMXIMAGE,   "imximage",   "Freescale i.MX Boot Image",},
151 	{	IH_TYPE_IMX8IMAGE,  "imx8image",  "NXP i.MX8 Boot Image",},
152 	{	IH_TYPE_IMX8MIMAGE, "imx8mimage", "NXP i.MX8M Boot Image",},
153 	{	IH_TYPE_INVALID,    "invalid",	  "Invalid Image",	},
154 	{	IH_TYPE_MULTI,	    "multi",	  "Multi-File Image",	},
155 	{	IH_TYPE_OMAPIMAGE,  "omapimage",  "TI OMAP SPL With GP CH",},
156 	{	IH_TYPE_PBLIMAGE,   "pblimage",   "Freescale PBL Boot Image",},
157 	{	IH_TYPE_RAMDISK,    "ramdisk",	  "RAMDisk Image",	},
158 	{	IH_TYPE_SCRIPT,     "script",	  "Script",		},
159 	{	IH_TYPE_SOCFPGAIMAGE, "socfpgaimage", "Altera SoCFPGA CV/AV preloader",},
160 	{	IH_TYPE_SOCFPGAIMAGE_V1, "socfpgaimage_v1", "Altera SoCFPGA A10 preloader",},
161 	{	IH_TYPE_STANDALONE, "standalone", "Standalone Program", },
162 	{	IH_TYPE_UBLIMAGE,   "ublimage",   "Davinci UBL image",},
163 	{	IH_TYPE_MXSIMAGE,   "mxsimage",   "Freescale MXS Boot Image",},
164 	{	IH_TYPE_ATMELIMAGE, "atmelimage", "ATMEL ROM-Boot Image",},
165 	{	IH_TYPE_X86_SETUP,  "x86_setup",  "x86 setup.bin",    },
166 	{	IH_TYPE_LPC32XXIMAGE, "lpc32xximage",  "LPC32XX Boot Image", },
167 	{	IH_TYPE_RKIMAGE,    "rkimage",    "Rockchip Boot Image" },
168 	{	IH_TYPE_RKSD,       "rksd",       "Rockchip SD Boot Image" },
169 	{	IH_TYPE_RKSPI,      "rkspi",      "Rockchip SPI Boot Image" },
170 	{	IH_TYPE_VYBRIDIMAGE, "vybridimage",  "Vybrid Boot Image", },
171 	{	IH_TYPE_ZYNQIMAGE,  "zynqimage",  "Xilinx Zynq Boot Image" },
172 	{	IH_TYPE_ZYNQMPIMAGE, "zynqmpimage", "Xilinx ZynqMP Boot Image" },
173 	{	IH_TYPE_ZYNQMPBIF,  "zynqmpbif",  "Xilinx ZynqMP Boot Image (bif)" },
174 	{	IH_TYPE_FPGA,       "fpga",       "FPGA Image" },
175 	{       IH_TYPE_TEE,        "tee",        "Trusted Execution Environment Image",},
176 	{	IH_TYPE_FIRMWARE_IVT, "firmware_ivt", "Firmware with HABv4 IVT" },
177 	{       IH_TYPE_PMMC,        "pmmc",        "TI Power Management Micro-Controller Firmware",},
178 	{	IH_TYPE_STM32IMAGE, "stm32image", "STMicroelectronics STM32 Image" },
179 	{	IH_TYPE_MTKIMAGE,   "mtk_image",   "MediaTek BootROM loadable Image" },
180 	{	IH_TYPE_COPRO, "copro", "Coprocessor Image"},
181 	{	IH_TYPE_SUNXI_EGON, "sunxi_egon",  "Allwinner eGON Boot Image" },
182 	{	IH_TYPE_SUNXI_TOC0, "sunxi_toc0",  "Allwinner TOC0 Boot Image" },
183 	{	IH_TYPE_FDT_LEGACY, "fdt_legacy", "legacy Image with Flat Device Tree ", },
184 	{	IH_TYPE_RENESAS_SPKG, "spkgimage", "Renesas SPKG Image" },
185 	{	-1,		    "",		  "",			},
186 };
187 
188 static const table_entry_t uimage_comp[] = {
189 	{	IH_COMP_NONE,	"none",		"uncompressed",		},
190 	{	IH_COMP_BZIP2,	"bzip2",	"bzip2 compressed",	},
191 	{	IH_COMP_GZIP,	"gzip",		"gzip compressed",	},
192 	{	IH_COMP_LZMA,	"lzma",		"lzma compressed",	},
193 	{	IH_COMP_LZO,	"lzo",		"lzo compressed",	},
194 	{	IH_COMP_LZ4,	"lz4",		"lz4 compressed",	},
195 	{	IH_COMP_ZSTD,	"zstd",		"zstd compressed",	},
196 	{	-1,		"",		"",			},
197 };
198 
199 static const table_entry_t uimage_phase[] = {
200 	{	IH_PHASE_NONE,	"none",		"any",		},
201 	{	IH_PHASE_U_BOOT, "u-boot",	"U-Boot phase",	},
202 	{	IH_PHASE_SPL,	"spl",		"SPL Phase",	},
203 	{	-1,		"",		"",		},
204 };
205 
206 struct table_info {
207 	const char *desc;
208 	int count;
209 	const table_entry_t *table;
210 };
211 
212 static const struct comp_magic_map image_comp[] = {
213 	{	IH_COMP_BZIP2,	"bzip2",	{0x42, 0x5a},},
214 	{	IH_COMP_GZIP,	"gzip",		{0x1f, 0x8b},},
215 	{	IH_COMP_LZMA,	"lzma",		{0x5d, 0x00},},
216 	{	IH_COMP_LZO,	"lzo",		{0x89, 0x4c},},
217 	{	IH_COMP_LZ4,    "lz4",          {0x04, 0x22},},
218 	{	IH_COMP_ZSTD,   "zstd",         {0x28, 0xb5},},
219 	{	IH_COMP_NONE,	"none",		{},	},
220 };
221 
222 static const struct table_info table_info[IH_COUNT] = {
223 	{ "architecture", IH_ARCH_COUNT, uimage_arch },
224 	{ "compression", IH_COMP_COUNT, uimage_comp },
225 	{ "operating system", IH_OS_COUNT, uimage_os },
226 	{ "image type", IH_TYPE_COUNT, uimage_type },
227 	{ "phase", IH_PHASE_COUNT, uimage_phase },
228 };
229 
230 /*****************************************************************************/
231 /* Legacy format routines */
232 /*****************************************************************************/
image_check_hcrc(const struct legacy_img_hdr * hdr)233 int image_check_hcrc(const struct legacy_img_hdr *hdr)
234 {
235 	ulong hcrc;
236 	ulong len = image_get_header_size();
237 	struct legacy_img_hdr header;
238 
239 	/* Copy header so we can blank CRC field for re-calculation */
240 	memmove(&header, (char *)hdr, image_get_header_size());
241 	image_set_hcrc(&header, 0);
242 
243 	hcrc = crc32(0, (unsigned char *)&header, len);
244 
245 	return (hcrc == image_get_hcrc(hdr));
246 }
247 
image_check_dcrc(const struct legacy_img_hdr * hdr)248 int image_check_dcrc(const struct legacy_img_hdr *hdr)
249 {
250 	ulong data = image_get_data(hdr);
251 	ulong len = image_get_data_size(hdr);
252 	ulong dcrc = crc32_wd(0, (unsigned char *)data, len, CHUNKSZ_CRC32);
253 
254 	return (dcrc == image_get_dcrc(hdr));
255 }
256 
257 /**
258  * image_multi_count - get component (sub-image) count
259  * @hdr: pointer to the header of the multi component image
260  *
261  * image_multi_count() returns number of components in a multi
262  * component image.
263  *
264  * Note: no checking of the image type is done, caller must pass
265  * a valid multi component image.
266  *
267  * returns:
268  *     number of components
269  */
image_multi_count(const struct legacy_img_hdr * hdr)270 ulong image_multi_count(const struct legacy_img_hdr *hdr)
271 {
272 	ulong i, count = 0;
273 	uint32_t *size;
274 
275 	/* get start of the image payload, which in case of multi
276 	 * component images that points to a table of component sizes */
277 	size = (uint32_t *)image_get_data(hdr);
278 
279 	/* count non empty slots */
280 	for (i = 0; size[i]; ++i)
281 		count++;
282 
283 	return count;
284 }
285 
286 /**
287  * image_multi_getimg - get component data address and size
288  * @hdr: pointer to the header of the multi component image
289  * @idx: index of the requested component
290  * @data: pointer to a ulong variable, will hold component data address
291  * @len: pointer to a ulong variable, will hold component size
292  *
293  * image_multi_getimg() returns size and data address for the requested
294  * component in a multi component image.
295  *
296  * Note: no checking of the image type is done, caller must pass
297  * a valid multi component image.
298  *
299  * returns:
300  *     data address and size of the component, if idx is valid
301  *     0 in data and len, if idx is out of range
302  */
image_multi_getimg(const struct legacy_img_hdr * hdr,ulong idx,ulong * data,ulong * len)303 void image_multi_getimg(const struct legacy_img_hdr *hdr, ulong idx,
304 			ulong *data, ulong *len)
305 {
306 	int i;
307 	uint32_t *size;
308 	ulong offset, count, img_data;
309 
310 	/* get number of component */
311 	count = image_multi_count(hdr);
312 
313 	/* get start of the image payload, which in case of multi
314 	 * component images that points to a table of component sizes */
315 	size = (uint32_t *)image_get_data(hdr);
316 
317 	/* get address of the proper component data start, which means
318 	 * skipping sizes table (add 1 for last, null entry) */
319 	img_data = image_get_data(hdr) + (count + 1) * sizeof(uint32_t);
320 
321 	if (idx < count) {
322 		*len = uimage_to_cpu(size[idx]);
323 		offset = 0;
324 
325 		/* go over all indices preceding requested component idx */
326 		for (i = 0; i < idx; i++) {
327 			/* add up i-th component size, rounding up to 4 bytes */
328 			offset += (uimage_to_cpu(size[i]) + 3) & ~3 ;
329 		}
330 
331 		/* calculate idx-th component data address */
332 		*data = img_data + offset;
333 	} else {
334 		*len = 0;
335 		*data = 0;
336 	}
337 }
338 
image_print_type(const struct legacy_img_hdr * hdr)339 static void image_print_type(const struct legacy_img_hdr *hdr)
340 {
341 	const char __maybe_unused *os, *arch, *type, *comp;
342 
343 	os = genimg_get_os_name(image_get_os(hdr));
344 	arch = genimg_get_arch_name(image_get_arch(hdr));
345 	type = genimg_get_type_name(image_get_type(hdr));
346 	comp = genimg_get_comp_name(image_get_comp(hdr));
347 
348 	printf("%s %s %s (%s)\n", arch, os, type, comp);
349 }
350 
351 /**
352  * image_print_contents - prints out the contents of the legacy format image
353  * @ptr: pointer to the legacy format image header
354  * @p: pointer to prefix string
355  *
356  * image_print_contents() formats a multi line legacy image contents description.
357  * The routine prints out all header fields followed by the size/offset data
358  * for MULTI/SCRIPT images.
359  *
360  * returns:
361  *     no returned results
362  */
image_print_contents(const void * ptr)363 void image_print_contents(const void *ptr)
364 {
365 	const struct legacy_img_hdr *hdr = (const struct legacy_img_hdr *)ptr;
366 	const char __maybe_unused *p;
367 
368 	p = IMAGE_INDENT_STRING;
369 	printf("%sImage Name:   %.*s\n", p, IH_NMLEN, image_get_name(hdr));
370 	if (IMAGE_ENABLE_TIMESTAMP) {
371 		printf("%sCreated:      ", p);
372 		genimg_print_time((time_t)image_get_time(hdr));
373 	}
374 	printf("%sImage Type:   ", p);
375 	image_print_type(hdr);
376 	printf("%sData Size:    ", p);
377 	genimg_print_size(image_get_data_size(hdr));
378 	printf("%sLoad Address: %08x\n", p, image_get_load(hdr));
379 	printf("%sEntry Point:  %08x\n", p, image_get_ep(hdr));
380 
381 	if (image_check_type(hdr, IH_TYPE_MULTI) ||
382 			image_check_type(hdr, IH_TYPE_SCRIPT)) {
383 		int i;
384 		ulong data, len;
385 		ulong count = image_multi_count(hdr);
386 
387 		printf("%sContents:\n", p);
388 		for (i = 0; i < count; i++) {
389 			image_multi_getimg(hdr, i, &data, &len);
390 
391 			printf("%s   Image %d: ", p, i);
392 			genimg_print_size(len);
393 
394 			if (image_check_type(hdr, IH_TYPE_SCRIPT) && i > 0) {
395 				/*
396 				 * the user may need to know offsets
397 				 * if planning to do something with
398 				 * multiple files
399 				 */
400 				printf("%s    Offset = 0x%08lx\n", p, data);
401 			}
402 		}
403 	} else if (image_check_type(hdr, IH_TYPE_FIRMWARE_IVT)) {
404 		printf("HAB Blocks:   0x%08x   0x0000   0x%08x\n",
405 			image_get_load(hdr) - image_get_header_size(),
406 			(int)(image_get_size(hdr) + image_get_header_size()
407 			+ sizeof(flash_header_v2_t) - 0x2060));
408 	}
409 }
410 
411 /**
412  * print_decomp_msg() - Print a suitable decompression/loading message
413  *
414  * @type:	OS type (IH_OS_...)
415  * @comp_type:	Compression type being used (IH_COMP_...)
416  * @is_xip:	true if the load address matches the image start
417  */
print_decomp_msg(int comp_type,int type,bool is_xip)418 static void print_decomp_msg(int comp_type, int type, bool is_xip)
419 {
420 	const char *name = genimg_get_type_name(type);
421 
422 	if (comp_type == IH_COMP_NONE)
423 		printf("   %s %s\n", is_xip ? "XIP" : "Loading", name);
424 	else
425 		printf("   Uncompressing %s\n", name);
426 }
427 
image_decomp_type(const unsigned char * buf,ulong len)428 int image_decomp_type(const unsigned char *buf, ulong len)
429 {
430 	const struct comp_magic_map *cmagic = image_comp;
431 
432 	if (len < 2)
433 		return -EINVAL;
434 
435 	for (; cmagic->comp_id > 0; cmagic++) {
436 		if (!memcmp(buf, cmagic->magic, 2))
437 			break;
438 	}
439 
440 	return cmagic->comp_id;
441 }
442 
image_decomp(int comp,ulong load,ulong image_start,int type,void * load_buf,void * image_buf,ulong image_len,uint unc_len,ulong * load_end)443 int image_decomp(int comp, ulong load, ulong image_start, int type,
444 		 void *load_buf, void *image_buf, ulong image_len,
445 		 uint unc_len, ulong *load_end)
446 {
447 	int ret = -ENOSYS;
448 
449 	*load_end = load;
450 	print_decomp_msg(comp, type, load == image_start);
451 
452 	/*
453 	 * Load the image to the right place, decompressing if needed. After
454 	 * this, image_len will be set to the number of uncompressed bytes
455 	 * loaded, ret will be non-zero on error.
456 	 */
457 	switch (comp) {
458 	case IH_COMP_NONE:
459 		ret = 0;
460 		if (load == image_start)
461 			break;
462 		if (image_len <= unc_len)
463 			memmove_wd(load_buf, image_buf, image_len, CHUNKSZ);
464 		else
465 			ret = -ENOSPC;
466 		break;
467 	case IH_COMP_GZIP:
468 		if (!tools_build() && CONFIG_IS_ENABLED(GZIP))
469 			ret = gunzip(load_buf, unc_len, image_buf, &image_len);
470 		break;
471 	case IH_COMP_BZIP2:
472 		if (!tools_build() && CONFIG_IS_ENABLED(BZIP2)) {
473 			uint size = unc_len;
474 
475 			/*
476 			 * If we've got less than 4 MB of malloc() space,
477 			 * use slower decompression algorithm which requires
478 			 * at most 2300 KB of memory.
479 			 */
480 			ret = BZ2_bzBuffToBuffDecompress(load_buf, &size,
481 				image_buf, image_len, CONSERVE_MEMORY, 0);
482 			image_len = size;
483 		}
484 		break;
485 	case IH_COMP_LZMA:
486 		if (!tools_build() && CONFIG_IS_ENABLED(LZMA)) {
487 			SizeT lzma_len = unc_len;
488 
489 			ret = lzmaBuffToBuffDecompress(load_buf, &lzma_len,
490 						       image_buf, image_len);
491 			image_len = lzma_len;
492 		}
493 		break;
494 	case IH_COMP_LZO:
495 		if (!tools_build() && CONFIG_IS_ENABLED(LZO)) {
496 			size_t size = unc_len;
497 
498 			ret = lzop_decompress(image_buf, image_len, load_buf, &size);
499 			image_len = size;
500 		}
501 		break;
502 	case IH_COMP_LZ4:
503 		if (!tools_build() && CONFIG_IS_ENABLED(LZ4)) {
504 			size_t size = unc_len;
505 
506 			ret = ulz4fn(image_buf, image_len, load_buf, &size);
507 			image_len = size;
508 		}
509 		break;
510 	case IH_COMP_ZSTD:
511 		if (!tools_build() && CONFIG_IS_ENABLED(ZSTD)) {
512 			struct abuf in, out;
513 
514 			abuf_init_set(&in, image_buf, image_len);
515 			abuf_init_set(&out, load_buf, unc_len);
516 			ret = zstd_decompress(&in, &out);
517 			if (ret >= 0) {
518 				image_len = ret;
519 				ret = 0;
520 			}
521 		}
522 		break;
523 	}
524 	if (ret == -ENOSYS) {
525 		printf("Unimplemented compression type %d\n", comp);
526 		return ret;
527 	}
528 	if (ret)
529 		return ret;
530 
531 	*load_end = load + image_len;
532 
533 	return 0;
534 }
535 
get_table_entry(const table_entry_t * table,int id)536 const table_entry_t *get_table_entry(const table_entry_t *table, int id)
537 {
538 	for (; table->id >= 0; ++table) {
539 		if (table->id == id)
540 			return table;
541 	}
542 	return NULL;
543 }
544 
unknown_msg(enum ih_category category)545 static const char *unknown_msg(enum ih_category category)
546 {
547 	static const char unknown_str[] = "Unknown ";
548 	static char msg[30];
549 
550 	strcpy(msg, unknown_str);
551 	strncat(msg, table_info[category].desc,
552 		sizeof(msg) - sizeof(unknown_str));
553 
554 	return msg;
555 }
556 
557 /**
558  * genimg_get_cat_name - translate entry id to long name
559  * @category: category to look up (enum ih_category)
560  * @id: entry id to be translated
561  *
562  * This will scan the translation table trying to find the entry that matches
563  * the given id.
564  *
565  * Return: long entry name if translation succeeds; error string on failure
566  */
genimg_get_cat_name(enum ih_category category,uint id)567 const char *genimg_get_cat_name(enum ih_category category, uint id)
568 {
569 	const table_entry_t *entry;
570 
571 	entry = get_table_entry(table_info[category].table, id);
572 	if (!entry)
573 		return unknown_msg(category);
574 	return manual_reloc(entry->lname);
575 }
576 
577 /**
578  * genimg_get_cat_short_name - translate entry id to short name
579  * @category: category to look up (enum ih_category)
580  * @id: entry id to be translated
581  *
582  * This will scan the translation table trying to find the entry that matches
583  * the given id.
584  *
585  * Return: short entry name if translation succeeds; error string on failure
586  */
genimg_get_cat_short_name(enum ih_category category,uint id)587 const char *genimg_get_cat_short_name(enum ih_category category, uint id)
588 {
589 	const table_entry_t *entry;
590 
591 	entry = get_table_entry(table_info[category].table, id);
592 	if (!entry)
593 		return unknown_msg(category);
594 	return manual_reloc(entry->sname);
595 }
596 
genimg_get_cat_count(enum ih_category category)597 int genimg_get_cat_count(enum ih_category category)
598 {
599 	return table_info[category].count;
600 }
601 
genimg_get_cat_desc(enum ih_category category)602 const char *genimg_get_cat_desc(enum ih_category category)
603 {
604 	return table_info[category].desc;
605 }
606 
607 /**
608  * genimg_cat_has_id - check whether category has entry id
609  * @category: category to look up (enum ih_category)
610  * @id: entry id to be checked
611  *
612  * This will scan the translation table trying to find the entry that matches
613  * the given id.
614  *
615  * Return: true if category has entry id; false if not
616  */
genimg_cat_has_id(enum ih_category category,uint id)617 bool genimg_cat_has_id(enum ih_category category, uint id)
618 {
619 	if (get_table_entry(table_info[category].table, id))
620 		return true;
621 
622 	return false;
623 }
624 
625 /**
626  * get_table_entry_name - translate entry id to long name
627  * @table: pointer to a translation table for entries of a specific type
628  * @msg: message to be returned when translation fails
629  * @id: entry id to be translated
630  *
631  * get_table_entry_name() will go over translation table trying to find
632  * entry that matches given id. If matching entry is found, its long
633  * name is returned to the caller.
634  *
635  * returns:
636  *     long entry name if translation succeeds
637  *     msg otherwise
638  */
get_table_entry_name(const table_entry_t * table,char * msg,int id)639 char *get_table_entry_name(const table_entry_t *table, char *msg, int id)
640 {
641 	table = get_table_entry(table, id);
642 	if (!table)
643 		return msg;
644 	return manual_reloc(table->lname);
645 }
646 
genimg_get_os_name(uint8_t os)647 const char *genimg_get_os_name(uint8_t os)
648 {
649 	return (get_table_entry_name(uimage_os, "Unknown OS", os));
650 }
651 
genimg_get_arch_name(uint8_t arch)652 const char *genimg_get_arch_name(uint8_t arch)
653 {
654 	return (get_table_entry_name(uimage_arch, "Unknown Architecture",
655 					arch));
656 }
657 
genimg_get_type_name(uint8_t type)658 const char *genimg_get_type_name(uint8_t type)
659 {
660 	return (get_table_entry_name(uimage_type, "Unknown Image", type));
661 }
662 
genimg_get_comp_name(uint8_t comp)663 const char *genimg_get_comp_name(uint8_t comp)
664 {
665 	return (get_table_entry_name(uimage_comp, "Unknown Compression",
666 					comp));
667 }
668 
genimg_get_phase_name(enum image_phase_t phase)669 const char *genimg_get_phase_name(enum image_phase_t phase)
670 {
671 	return get_table_entry_name(uimage_phase, "Unknown Phase", phase);
672 }
673 
genimg_get_short_name(const table_entry_t * table,int val)674 static const char *genimg_get_short_name(const table_entry_t *table, int val)
675 {
676 	table = get_table_entry(table, val);
677 	if (!table)
678 		return "unknown";
679 	return manual_reloc(table->sname);
680 }
681 
genimg_get_type_short_name(uint8_t type)682 const char *genimg_get_type_short_name(uint8_t type)
683 {
684 	return genimg_get_short_name(uimage_type, type);
685 }
686 
genimg_get_comp_short_name(uint8_t comp)687 const char *genimg_get_comp_short_name(uint8_t comp)
688 {
689 	return genimg_get_short_name(uimage_comp, comp);
690 }
691 
genimg_get_os_short_name(uint8_t os)692 const char *genimg_get_os_short_name(uint8_t os)
693 {
694 	return genimg_get_short_name(uimage_os, os);
695 }
696 
genimg_get_arch_short_name(uint8_t arch)697 const char *genimg_get_arch_short_name(uint8_t arch)
698 {
699 	return genimg_get_short_name(uimage_arch, arch);
700 }
701 
702 /**
703  * get_table_entry_id - translate short entry name to id
704  * @table: pointer to a translation table for entries of a specific type
705  * @table_name: to be used in case of error
706  * @name: entry short name to be translated
707  *
708  * get_table_entry_id() will go over translation table trying to find
709  * entry that matches given short name. If matching entry is found,
710  * its id returned to the caller.
711  *
712  * returns:
713  *     entry id if translation succeeds
714  *     -1 otherwise
715  */
get_table_entry_id(const table_entry_t * table,const char * table_name,const char * name)716 int get_table_entry_id(const table_entry_t *table,
717 		const char *table_name, const char *name)
718 {
719 	const table_entry_t *t;
720 
721 	for (t = table; t->id >= 0; ++t) {
722 		if (t->sname && !strcasecmp(manual_reloc(t->sname), name))
723 			return t->id;
724 	}
725 	debug("Invalid %s Type: %s\n", table_name, name);
726 
727 	return -1;
728 }
729 
genimg_get_os_id(const char * name)730 int genimg_get_os_id(const char *name)
731 {
732 	return (get_table_entry_id(uimage_os, "OS", name));
733 }
734 
genimg_get_arch_id(const char * name)735 int genimg_get_arch_id(const char *name)
736 {
737 	return (get_table_entry_id(uimage_arch, "CPU", name));
738 }
739 
genimg_get_type_id(const char * name)740 int genimg_get_type_id(const char *name)
741 {
742 	return (get_table_entry_id(uimage_type, "Image", name));
743 }
744 
genimg_get_comp_id(const char * name)745 int genimg_get_comp_id(const char *name)
746 {
747 	return (get_table_entry_id(uimage_comp, "Compression", name));
748 }
749 
genimg_get_phase_id(const char * name)750 int genimg_get_phase_id(const char *name)
751 {
752 	return get_table_entry_id(uimage_phase, "Phase", name);
753 }
754