include/image.h

   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
  27 /* new uImage format support enabled on host */
  28 #define CONFIG_FIT              1
  29 #define CONFIG_OF_LIBFDT        1
  30 #define CONFIG_FIT_VERBOSE      1 /* enable fit_format_{error,warning}() */
  31
  32 #define IMAGE_ENABLE_IGNORE     0
  33 #define IMAGE_INDENT_STRING     ""
  34
  35 #else
  36
  37 #include <lmb.h>
  38 #include <asm/u-boot.h>
  39 #include <command.h>
  40
  41 /* Take notice of the 'ignore' property for hashes */
  42 #define IMAGE_ENABLE_IGNORE     1
  43 #define IMAGE_INDENT_STRING     "   "
  44
  45 #endif /* USE_HOSTCC */
  46
  47 #if defined(CONFIG_FIT)
  48 #include <libfdt.h>
  49 #include <fdt_support.h>
  50 # ifdef CONFIG_SPL_BUILD
  51 #  ifdef CONFIG_SPL_CRC32_SUPPORT
  52 #   define IMAGE_ENABLE_CRC32   1
  53 #  endif
  54 #  ifdef CONFIG_SPL_MD5_SUPPORT
  55 #   define IMAGE_ENABLE_MD5     1
  56 #  endif
  57 #  ifdef CONFIG_SPL_SHA1_SUPPORT
  58 #   define IMAGE_ENABLE_SHA1    1
  59 #  endif
  60 # else
  61 #  define CONFIG_CRC32          /* FIT images need CRC32 support */
  62 #  define CONFIG_MD5            /* and MD5 */
  63 #  define CONFIG_SHA1           /* and SHA1 */
  64 #  define IMAGE_ENABLE_CRC32    1
  65 #  define IMAGE_ENABLE_MD5      1
  66 #  define IMAGE_ENABLE_SHA1     1
  67 # endif
  68
  69 #ifndef IMAGE_ENABLE_CRC32
  70 #define IMAGE_ENABLE_CRC32      0
  71 #endif
  72
  73 #ifndef IMAGE_ENABLE_MD5
  74 #define IMAGE_ENABLE_MD5        0
  75 #endif
  76
  77 #ifndef IMAGE_ENABLE_SHA1
  78 #define IMAGE_ENABLE_SHA1       0
  79 #endif
  80
  81 #endif /* CONFIG_FIT */
  82
  83 #ifdef CONFIG_SYS_BOOT_RAMDISK_HIGH
  84 # define IMAGE_ENABLE_RAMDISK_HIGH      1
  85 #else
  86 # define IMAGE_ENABLE_RAMDISK_HIGH      0
  87 #endif
  88
  89 #ifdef CONFIG_OF_LIBFDT
  90 # define IMAGE_ENABLE_OF_LIBFDT 1
  91 #else
  92 # define IMAGE_ENABLE_OF_LIBFDT 0
  93 #endif
  94
  95 #ifdef CONFIG_SYS_BOOT_GET_CMDLINE
  96 # define IMAGE_BOOT_GET_CMDLINE         1
  97 #else
  98 # define IMAGE_BOOT_GET_CMDLINE         0
  99 #endif
 100
 101 #ifdef CONFIG_OF_BOARD_SETUP
 102 # define IMAAGE_OF_BOARD_SETUP          1
 103 #else
 104 # define IMAAGE_OF_BOARD_SETUP          0
 105 #endif
 106
 107 /*
 108  * Operating System Codes
 109  */
 110 #define IH_OS_INVALID           0       /* Invalid OS   */
 111 #define IH_OS_OPENBSD           1       /* OpenBSD      */
 112 #define IH_OS_NETBSD            2       /* NetBSD       */
 113 #define IH_OS_FREEBSD           3       /* FreeBSD      */
 114 #define IH_OS_4_4BSD            4       /* 4.4BSD       */
 115 #define IH_OS_LINUX             5       /* Linux        */
 116 #define IH_OS_SVR4              6       /* SVR4         */
 117 #define IH_OS_ESIX              7       /* Esix         */
 118 #define IH_OS_SOLARIS           8       /* Solaris      */
 119 #define IH_OS_IRIX              9       /* Irix         */
 120 #define IH_OS_SCO               10      /* SCO          */
 121 #define IH_OS_DELL              11      /* Dell         */
 122 #define IH_OS_NCR               12      /* NCR          */
 123 #define IH_OS_LYNXOS            13      /* LynxOS       */
 124 #define IH_OS_VXWORKS           14      /* VxWorks      */
 125 #define IH_OS_PSOS              15      /* pSOS         */
 126 #define IH_OS_QNX               16      /* QNX          */
 127 #define IH_OS_U_BOOT            17      /* Firmware     */
 128 #define IH_OS_RTEMS             18      /* RTEMS        */
 129 #define IH_OS_ARTOS             19      /* ARTOS        */
 130 #define IH_OS_UNITY             20      /* Unity OS     */
 131 #define IH_OS_INTEGRITY         21      /* INTEGRITY    */
 132 #define IH_OS_OSE               22      /* OSE          */
 133 #define IH_OS_PLAN9             23      /* Plan 9       */
 134
 135 /*
 136  * CPU Architecture Codes (supported by Linux)
 137  */
 138 #define IH_ARCH_INVALID         0       /* Invalid CPU  */
 139 #define IH_ARCH_ALPHA           1       /* Alpha        */
 140 #define IH_ARCH_ARM             2       /* ARM          */
 141 #define IH_ARCH_I386            3       /* Intel x86    */
 142 #define IH_ARCH_IA64            4       /* IA64         */
 143 #define IH_ARCH_MIPS            5       /* MIPS         */
 144 #define IH_ARCH_MIPS64          6       /* MIPS  64 Bit */
 145 #define IH_ARCH_PPC             7       /* PowerPC      */
 146 #define IH_ARCH_S390            8       /* IBM S390     */
 147 #define IH_ARCH_SH              9       /* SuperH       */
 148 #define IH_ARCH_SPARC           10      /* Sparc        */
 149 #define IH_ARCH_SPARC64         11      /* Sparc 64 Bit */
 150 #define IH_ARCH_M68K            12      /* M68K         */
 151 #define IH_ARCH_MICROBLAZE      14      /* MicroBlaze   */
 152 #define IH_ARCH_NIOS2           15      /* Nios-II      */
 153 #define IH_ARCH_BLACKFIN        16      /* Blackfin     */
 154 #define IH_ARCH_AVR32           17      /* AVR32        */
 155 #define IH_ARCH_ST200           18      /* STMicroelectronics ST200  */
 156 #define IH_ARCH_SANDBOX         19      /* Sandbox architecture (test only) */
 157 #define IH_ARCH_NDS32           20      /* ANDES Technology - NDS32  */
 158 #define IH_ARCH_OPENRISC        21      /* OpenRISC 1000  */
 159
 160 /*
 161  * Image Types
 162  *
 163  * "Standalone Programs" are directly runnable in the environment
 164  *      provided by U-Boot; it is expected that (if they behave
 165  *      well) you can continue to work in U-Boot after return from
 166  *      the Standalone Program.
 167  * "OS Kernel Images" are usually images of some Embedded OS which
 168  *      will take over control completely. Usually these programs
 169  *      will install their own set of exception handlers, device
 170  *      drivers, set up the MMU, etc. - this means, that you cannot
 171  *      expect to re-enter U-Boot except by resetting the CPU.
 172  * "RAMDisk Images" are more or less just data blocks, and their
 173  *      parameters (address, size) are passed to an OS kernel that is
 174  *      being started.
 175  * "Multi-File Images" contain several images, typically an OS
 176  *      (Linux) kernel image and one or more data images like
 177  *      RAMDisks. This construct is useful for instance when you want
 178  *      to boot over the network using BOOTP etc., where the boot
 179  *      server provides just a single image file, but you want to get
 180  *      for instance an OS kernel and a RAMDisk image.
 181  *
 182  *      "Multi-File Images" start with a list of image sizes, each
 183  *      image size (in bytes) specified by an "uint32_t" in network
 184  *      byte order. This list is terminated by an "(uint32_t)0".
 185  *      Immediately after the terminating 0 follow the images, one by
 186  *      one, all aligned on "uint32_t" boundaries (size rounded up to
 187  *      a multiple of 4 bytes - except for the last file).
 188  *
 189  * "Firmware Images" are binary images containing firmware (like
 190  *      U-Boot or FPGA images) which usually will be programmed to
 191  *      flash memory.
 192  *
 193  * "Script files" are command sequences that will be executed by
 194  *      U-Boot's command interpreter; this feature is especially
 195  *      useful when you configure U-Boot to use a real shell (hush)
 196  *      as command interpreter (=> Shell Scripts).
 197  */
 198
 199 #define IH_TYPE_INVALID         0       /* Invalid Image                */
 200 #define IH_TYPE_STANDALONE      1       /* Standalone Program           */
 201 #define IH_TYPE_KERNEL          2       /* OS Kernel Image              */
 202 #define IH_TYPE_RAMDISK         3       /* RAMDisk Image                */
 203 #define IH_TYPE_MULTI           4       /* Multi-File Image             */
 204 #define IH_TYPE_FIRMWARE        5       /* Firmware Image               */
 205 #define IH_TYPE_SCRIPT          6       /* Script file                  */
 206 #define IH_TYPE_FILESYSTEM      7       /* Filesystem Image (any type)  */
 207 #define IH_TYPE_FLATDT          8       /* Binary Flat Device Tree Blob */
 208 #define IH_TYPE_KWBIMAGE        9       /* Kirkwood Boot Image          */
 209 #define IH_TYPE_IMXIMAGE        10      /* Freescale IMXBoot Image      */
 210 #define IH_TYPE_UBLIMAGE        11      /* Davinci UBL Image            */
 211 #define IH_TYPE_OMAPIMAGE       12      /* TI OMAP Config Header Image  */
 212 #define IH_TYPE_AISIMAGE        13      /* TI Davinci AIS Image         */
 213 #define IH_TYPE_KERNEL_NOLOAD   14      /* OS Kernel Image, can run from any load address */
 214 #define IH_TYPE_PBLIMAGE        15      /* Freescale PBL Boot Image     */
 215
 216 /*
 217  * Compression Types
 218  */
 219 #define IH_COMP_NONE            0       /*  No   Compression Used       */
 220 #define IH_COMP_GZIP            1       /* gzip  Compression Used       */
 221 #define IH_COMP_BZIP2           2       /* bzip2 Compression Used       */
 222 #define IH_COMP_LZMA            3       /* lzma  Compression Used       */
 223 #define IH_COMP_LZO             4       /* lzo   Compression Used       */
 224
 225 #define IH_MAGIC        0x27051956      /* Image Magic Number           */
 226 #define IH_NMLEN                32      /* Image Name Length            */
 227
 228 /* Reused from common.h */
 229 #define ROUND(a, b)             (((a) + (b) - 1) & ~((b) - 1))
 230
 231 /*
 232  * Legacy format image header,
 233  * all data in network byte order (aka natural aka bigendian).
 234  */
 235 typedef struct image_header {
 236         __be32          ih_magic;       /* Image Header Magic Number    */
 237         __be32          ih_hcrc;        /* Image Header CRC Checksum    */
 238         __be32          ih_time;        /* Image Creation Timestamp     */
 239         __be32          ih_size;        /* Image Data Size              */
 240         __be32          ih_load;        /* Data  Load  Address          */
 241         __be32          ih_ep;          /* Entry Point Address          */
 242         __be32          ih_dcrc;        /* Image Data CRC Checksum      */
 243         uint8_t         ih_os;          /* Operating System             */
 244         uint8_t         ih_arch;        /* CPU architecture             */
 245         uint8_t         ih_type;        /* Image Type                   */
 246         uint8_t         ih_comp;        /* Compression Type             */
 247         uint8_t         ih_name[IH_NMLEN];      /* Image Name           */
 248 } image_header_t;
 249
 250 typedef struct image_info {
 251         ulong           start, end;             /* start/end of blob */
 252         ulong           image_start, image_len; /* start of image within blob, len of image */
 253         ulong           load;                   /* load addr for the image */
 254         uint8_t         comp, type, os;         /* compression, type of image, os type */
 255 } image_info_t;
 256
 257 /*
 258  * Legacy and FIT format headers used by do_bootm() and do_bootm_<os>()
 259  * routines.
 260  */
 261 typedef struct bootm_headers {
 262         /*
 263          * Legacy os image header, if it is a multi component image
 264          * then boot_get_ramdisk() and get_fdt() will attempt to get
 265          * data from second and third component accordingly.
 266          */
 267         image_header_t  *legacy_hdr_os;         /* image header pointer */
 268         image_header_t  legacy_hdr_os_copy;     /* header copy */
 269         ulong           legacy_hdr_valid;
 270
 271 #if defined(CONFIG_FIT)
 272         const char      *fit_uname_cfg; /* configuration node unit name */
 273
 274         void            *fit_hdr_os;    /* os FIT image header */
 275         const char      *fit_uname_os;  /* os subimage node unit name */
 276         int             fit_noffset_os; /* os subimage node offset */
 277
 278         void            *fit_hdr_rd;    /* init ramdisk FIT image header */
 279         const char      *fit_uname_rd;  /* init ramdisk subimage node unit name */
 280         int             fit_noffset_rd; /* init ramdisk subimage node offset */
 281
 282         void            *fit_hdr_fdt;   /* FDT blob FIT image header */
 283         const char      *fit_uname_fdt; /* FDT blob subimage node unit name */
 284         int             fit_noffset_fdt;/* FDT blob subimage node offset */
 285 #endif
 286
 287 #ifndef USE_HOSTCC
 288         image_info_t    os;             /* os image info */
 289         ulong           ep;             /* entry point of OS */
 290
 291         ulong           rd_start, rd_end;/* ramdisk start/end */
 292
 293         char            *ft_addr;       /* flat dev tree address */
 294         ulong           ft_len;         /* length of flat device tree */
 295
 296         ulong           initrd_start;
 297         ulong           initrd_end;
 298         ulong           cmdline_start;
 299         ulong           cmdline_end;
 300         bd_t            *kbd;
 301 #endif
 302
 303         int             verify;         /* getenv("verify")[0] != 'n' */
 304
 305 #define BOOTM_STATE_START       (0x00000001)
 306 #define BOOTM_STATE_FINDOS      (0x00000002)
 307 #define BOOTM_STATE_FINDOTHER   (0x00000004)
 308 #define BOOTM_STATE_LOADOS      (0x00000008)
 309 #define BOOTM_STATE_RAMDISK     (0x00000010)
 310 #define BOOTM_STATE_FDT         (0x00000020)
 311 #define BOOTM_STATE_OS_CMDLINE  (0x00000040)
 312 #define BOOTM_STATE_OS_BD_T     (0x00000080)
 313 #define BOOTM_STATE_OS_PREP     (0x00000100)
 314 #define BOOTM_STATE_OS_FAKE_GO  (0x00000200)    /* 'Almost' run the OS */
 315 #define BOOTM_STATE_OS_GO       (0x00000400)
 316         int             state;
 317
 318 #ifdef CONFIG_LMB
 319         struct lmb      lmb;            /* for memory mgmt */
 320 #endif
 321 } bootm_headers_t;
 322
 323 extern bootm_headers_t images;
 324
 325 /*
 326  * Some systems (for example LWMON) have very short watchdog periods;
 327  * we must make sure to split long operations like memmove() or
 328  * checksum calculations into reasonable chunks.
 329  */
 330 #ifndef CHUNKSZ
 331 #define CHUNKSZ (64 * 1024)
 332 #endif
 333
 334 #ifndef CHUNKSZ_CRC32
 335 #define CHUNKSZ_CRC32 (64 * 1024)
 336 #endif
 337
 338 #ifndef CHUNKSZ_MD5
 339 #define CHUNKSZ_MD5 (64 * 1024)
 340 #endif
 341
 342 #ifndef CHUNKSZ_SHA1
 343 #define CHUNKSZ_SHA1 (64 * 1024)
 344 #endif
 345
 346 #define uimage_to_cpu(x)                be32_to_cpu(x)
 347 #define cpu_to_uimage(x)                cpu_to_be32(x)
 348
 349 /*
 350  * Translation table for entries of a specific type; used by
 351  * get_table_entry_id() and get_table_entry_name().
 352  */
 353 typedef struct table_entry {
 354         int     id;
 355         char    *sname;         /* short (input) name to find table entry */
 356         char    *lname;         /* long (output) name to print for messages */
 357 } table_entry_t;
 358
 359 /*
 360  * get_table_entry_id() scans the translation table trying to find an
 361  * entry that matches the given short name. If a matching entry is
 362  * found, it's id is returned to the caller.
 363  */
 364 int get_table_entry_id(const table_entry_t *table,
 365                 const char *table_name, const char *name);
 366 /*
 367  * get_table_entry_name() scans the translation table trying to find
 368  * an entry that matches the given id. If a matching entry is found,
 369  * its long name is returned to the caller.
 370  */
 371 char *get_table_entry_name(const table_entry_t *table, char *msg, int id);
 372
 373 const char *genimg_get_os_name(uint8_t os);
 374 const char *genimg_get_arch_name(uint8_t arch);
 375 const char *genimg_get_type_name(uint8_t type);
 376 const char *genimg_get_comp_name(uint8_t comp);
 377 int genimg_get_os_id(const char *name);
 378 int genimg_get_arch_id(const char *name);
 379 int genimg_get_type_id(const char *name);
 380 int genimg_get_comp_id(const char *name);
 381 void genimg_print_size(uint32_t size);
 382
 383 #if defined(CONFIG_TIMESTAMP) || defined(CONFIG_CMD_DATE) || \
 384         defined(USE_HOSTCC)
 385 #define IMAGE_ENABLE_TIMESTAMP 1
 386 #else
 387 #define IMAGE_ENABLE_TIMESTAMP 0
 388 #endif
 389 void genimg_print_time(time_t timestamp);
 390
 391 /* What to do with a image load address ('load = <> 'in the FIT) */
 392 enum fit_load_op {
 393         FIT_LOAD_IGNORED,       /* Ignore load address */
 394         FIT_LOAD_OPTIONAL,      /* Can be provided, but optional */
 395         FIT_LOAD_REQUIRED,      /* Must be provided */
 396 };
 397
 398 #ifndef USE_HOSTCC
 399 /* Image format types, returned by _get_format() routine */
 400 #define IMAGE_FORMAT_INVALID    0x00
 401 #define IMAGE_FORMAT_LEGACY     0x01    /* legacy image_header based format */
 402 #define IMAGE_FORMAT_FIT        0x02    /* new, libfdt based format */
 403
 404 int genimg_get_format(const void *img_addr);
 405 int genimg_has_config(bootm_headers_t *images);
 406 ulong genimg_get_image(ulong img_addr);
 407
 408 int boot_get_ramdisk(int argc, char * const argv[], bootm_headers_t *images,
 409                 uint8_t arch, ulong *rd_start, ulong *rd_end);
 410
 411 /**
 412  * fit_image_load() - load an image from a FIT
 413  *
 414  * This deals with all aspects of loading an image from a FIT, including
 415  * selecting the right image based on configuration, verifying it, printing
 416  * out progress messages, checking the type/arch/os and optionally copying it
 417  * to the right load address.
 418  *
 419  * @param images        Boot images structure
 420  * @param prop_name     Property name to look up (FIT_..._PROP)
 421  * @param addr          Address of FIT in memory
 422  * @param fit_unamep    On entry this is the requested image name
 423  *                      (e.g. "kernel@1") or NULL to use the default. On exit
 424  *                      points to the selected image name
 425  * @param fit_uname_configp     On entry this is the requested configuration
 426  *                      name (e.g. "conf@1") or NULL to use the default. On
 427  *                      exit points to the selected configuration name.
 428  * @param arch          Expected architecture (IH_ARCH_...)
 429  * @param image_type    Required image type (IH_TYPE_...). If this is
 430  *                      IH_TYPE_KERNEL then we allow IH_TYPE_KERNEL_NOLOAD
 431  *                      also.
 432  * @param bootstage_id  ID of starting bootstage to use for progress updates.
 433  *                      This will be added to the BOOTSTAGE_SUB values when
 434  *                      calling bootstage_mark()
 435  * @param load_op       Decribes what to do with the load address
 436  * @param datap         Returns address of loaded image
 437  * @param lenp          Returns length of loaded image
 438  */
 439 int fit_image_load(bootm_headers_t *images, const char *prop_name, ulong addr,
 440                    const char **fit_unamep, const char **fit_uname_configp,
 441                    int arch, int image_type, int bootstage_id,
 442                    enum fit_load_op load_op, ulong *datap, ulong *lenp);
 443
 444 /**
 445  * fit_get_node_from_config() - Look up an image a FIT by type
 446  *
 447  * This looks in the selected conf@ node (images->fit_uname_cfg) for a
 448  * particular image type (e.g. "kernel") and then finds the image that is
 449  * referred to.
 450  *
 451  * For example, for something like:
 452  *
 453  * images {
 454  *      kernel@1 {
 455  *              ...
 456  *      };
 457  * };
 458  * configurations {
 459  *      conf@1 {
 460  *              kernel = "kernel@1";
 461  *      };
 462  * };
 463  *
 464  * the function will return the node offset of the kernel@1 node, assuming
 465  * that conf@1 is the chosen configuration.
 466  *
 467  * @param images        Boot images structure
 468  * @param prop_name     Property name to look up (FIT_..._PROP)
 469  * @param addr          Address of FIT in memory
 470  */
 471 int fit_get_node_from_config(bootm_headers_t *images, const char *prop_name,
 472                         ulong addr);
 473
 474 int boot_get_fdt(int flag, int argc, char * const argv[], uint8_t arch,
 475                  bootm_headers_t *images,
 476                  char **of_flat_tree, ulong *of_size);
 477 void boot_fdt_add_mem_rsv_regions(struct lmb *lmb, void *fdt_blob);
 478 int boot_relocate_fdt(struct lmb *lmb, char **of_flat_tree, ulong *of_size);
 479
 480 int boot_ramdisk_high(struct lmb *lmb, ulong rd_data, ulong rd_len,
 481                   ulong *initrd_start, ulong *initrd_end);
 482 int boot_get_cmdline(struct lmb *lmb, ulong *cmd_start, ulong *cmd_end);
 483 #ifdef CONFIG_SYS_BOOT_GET_KBD
 484 int boot_get_kbd(struct lmb *lmb, bd_t **kbd);
 485 #endif /* CONFIG_SYS_BOOT_GET_KBD */
 486 #endif /* !USE_HOSTCC */
 487
 488 /*******************************************************************/
 489 /* Legacy format specific code (prefixed with image_) */
 490 /*******************************************************************/
 491 static inline uint32_t image_get_header_size(void)
 492 {
 493         return (sizeof(image_header_t));
 494 }
 495
 496 #define image_get_hdr_l(f) \
 497         static inline uint32_t image_get_##f(const image_header_t *hdr) \
 498         { \
 499                 return uimage_to_cpu(hdr->ih_##f); \
 500         }
 501 image_get_hdr_l(magic)          /* image_get_magic */
 502 image_get_hdr_l(hcrc)           /* image_get_hcrc */
 503 image_get_hdr_l(time)           /* image_get_time */
 504 image_get_hdr_l(size)           /* image_get_size */
 505 image_get_hdr_l(load)           /* image_get_load */
 506 image_get_hdr_l(ep)             /* image_get_ep */
 507 image_get_hdr_l(dcrc)           /* image_get_dcrc */
 508
 509 #define image_get_hdr_b(f) \
 510         static inline uint8_t image_get_##f(const image_header_t *hdr) \
 511         { \
 512                 return hdr->ih_##f; \
 513         }
 514 image_get_hdr_b(os)             /* image_get_os */
 515 image_get_hdr_b(arch)           /* image_get_arch */
 516 image_get_hdr_b(type)           /* image_get_type */
 517 image_get_hdr_b(comp)           /* image_get_comp */
 518
 519 static inline char *image_get_name(const image_header_t *hdr)
 520 {
 521         return (char *)hdr->ih_name;
 522 }
 523
 524 static inline uint32_t image_get_data_size(const image_header_t *hdr)
 525 {
 526         return image_get_size(hdr);
 527 }
 528
 529 /**
 530  * image_get_data - get image payload start address
 531  * @hdr: image header
 532  *
 533  * image_get_data() returns address of the image payload. For single
 534  * component images it is image data start. For multi component
 535  * images it points to the null terminated table of sub-images sizes.
 536  *
 537  * returns:
 538  *     image payload data start address
 539  */
 540 static inline ulong image_get_data(const image_header_t *hdr)
 541 {
 542         return ((ulong)hdr + image_get_header_size());
 543 }
 544
 545 static inline uint32_t image_get_image_size(const image_header_t *hdr)
 546 {
 547         return (image_get_size(hdr) + image_get_header_size());
 548 }
 549 static inline ulong image_get_image_end(const image_header_t *hdr)
 550 {
 551         return ((ulong)hdr + image_get_image_size(hdr));
 552 }
 553
 554 #define image_set_hdr_l(f) \
 555         static inline void image_set_##f(image_header_t *hdr, uint32_t val) \
 556         { \
 557                 hdr->ih_##f = cpu_to_uimage(val); \
 558         }
 559 image_set_hdr_l(magic)          /* image_set_magic */
 560 image_set_hdr_l(hcrc)           /* image_set_hcrc */
 561 image_set_hdr_l(time)           /* image_set_time */
 562 image_set_hdr_l(size)           /* image_set_size */
 563 image_set_hdr_l(load)           /* image_set_load */
 564 image_set_hdr_l(ep)             /* image_set_ep */
 565 image_set_hdr_l(dcrc)           /* image_set_dcrc */
 566
 567 #define image_set_hdr_b(f) \
 568         static inline void image_set_##f(image_header_t *hdr, uint8_t val) \
 569         { \
 570                 hdr->ih_##f = val; \
 571         }
 572 image_set_hdr_b(os)             /* image_set_os */
 573 image_set_hdr_b(arch)           /* image_set_arch */
 574 image_set_hdr_b(type)           /* image_set_type */
 575 image_set_hdr_b(comp)           /* image_set_comp */
 576
 577 static inline void image_set_name(image_header_t *hdr, const char *name)
 578 {
 579         strncpy(image_get_name(hdr), name, IH_NMLEN);
 580 }
 581
 582 int image_check_hcrc(const image_header_t *hdr);
 583 int image_check_dcrc(const image_header_t *hdr);
 584 #ifndef USE_HOSTCC
 585 ulong getenv_bootm_low(void);
 586 phys_size_t getenv_bootm_size(void);
 587 phys_size_t getenv_bootm_mapsize(void);
 588 void memmove_wd(void *to, void *from, size_t len, ulong chunksz);
 589 #endif
 590
 591 static inline int image_check_magic(const image_header_t *hdr)
 592 {
 593         return (image_get_magic(hdr) == IH_MAGIC);
 594 }
 595 static inline int image_check_type(const image_header_t *hdr, uint8_t type)
 596 {
 597         return (image_get_type(hdr) == type);
 598 }
 599 static inline int image_check_arch(const image_header_t *hdr, uint8_t arch)
 600 {
 601         return (image_get_arch(hdr) == arch);
 602 }
 603 static inline int image_check_os(const image_header_t *hdr, uint8_t os)
 604 {
 605         return (image_get_os(hdr) == os);
 606 }
 607
 608 ulong image_multi_count(const image_header_t *hdr);
 609 void image_multi_getimg(const image_header_t *hdr, ulong idx,
 610                         ulong *data, ulong *len);
 611
 612 void image_print_contents(const void *hdr);
 613
 614 #ifndef USE_HOSTCC
 615 static inline int image_check_target_arch(const image_header_t *hdr)
 616 {
 617 #ifndef IH_ARCH_DEFAULT
 618 # error "please define IH_ARCH_DEFAULT in your arch asm/u-boot.h"
 619 #endif
 620         return image_check_arch(hdr, IH_ARCH_DEFAULT);
 621 }
 622 #endif /* USE_HOSTCC */
 623
 624 /**
 625  * Set up properties in the FDT
 626  *
 627  * This sets up properties in the FDT that is to be passed to linux.
 628  *
 629  * @images:     Images information
 630  * @blob:       FDT to update
 631  * @of_size:    Size of the FDT
 632  * @lmb:        Points to logical memory block structure
 633  * @return 0 if ok, <0 on failure
 634  */
 635 int image_setup_libfdt(bootm_headers_t *images, void *blob,
 636                        int of_size, struct lmb *lmb);
 637
 638 /**
 639  * Set up the FDT to use for booting a kernel
 640  *
 641  * This performs ramdisk setup, sets up the FDT if required, and adds
 642  * paramters to the FDT if libfdt is available.
 643  *
 644  * @param images        Images information
 645  * @return 0 if ok, <0 on failure
 646  */
 647 int image_setup_linux(bootm_headers_t *images);
 648
 649 /**
 650  * bootz_setup() - Extract stat and size of a Linux xImage
 651  *
 652  * @image: Address of image
 653  * @start: Returns start address of image
 654  * @end : Returns end address of image
 655  * @return 0 if OK, 1 if the image was not recognised
 656  */
 657 int bootz_setup(ulong image, ulong *start, ulong *end);
 658
 659
 660 /*******************************************************************/
 661 /* New uImage format specific code (prefixed with fit_) */
 662 /*******************************************************************/
 663 #if defined(CONFIG_FIT)
 664
 665 #define FIT_IMAGES_PATH         "/images"
 666 #define FIT_CONFS_PATH          "/configurations"
 667
 668 /* hash/signature node */
 669 #define FIT_HASH_NODENAME       "hash"
 670 #define FIT_ALGO_PROP           "algo"
 671 #define FIT_VALUE_PROP          "value"
 672 #define FIT_IGNORE_PROP         "uboot-ignore"
 673 #define FIT_SIG_NODENAME        "signature"
 674
 675 /* image node */
 676 #define FIT_DATA_PROP           "data"
 677 #define FIT_TIMESTAMP_PROP      "timestamp"
 678 #define FIT_DESC_PROP           "description"
 679 #define FIT_ARCH_PROP           "arch"
 680 #define FIT_TYPE_PROP           "type"
 681 #define FIT_OS_PROP             "os"
 682 #define FIT_COMP_PROP           "compression"
 683 #define FIT_ENTRY_PROP          "entry"
 684 #define FIT_LOAD_PROP           "load"
 685
 686 /* configuration node */
 687 #define FIT_KERNEL_PROP         "kernel"
 688 #define FIT_RAMDISK_PROP        "ramdisk"
 689 #define FIT_FDT_PROP            "fdt"
 690 #define FIT_DEFAULT_PROP        "default"
 691
 692 #define FIT_MAX_HASH_LEN        20      /* max(crc32_len(4), sha1_len(20)) */
 693
 694 /* cmdline argument format parsing */
 695 int fit_parse_conf(const char *spec, ulong addr_curr,
 696                 ulong *addr, const char **conf_name);
 697 int fit_parse_subimage(const char *spec, ulong addr_curr,
 698                 ulong *addr, const char **image_name);
 699
 700 void fit_print_contents(const void *fit);
 701 void fit_image_print(const void *fit, int noffset, const char *p);
 702
 703 /**
 704  * fit_get_end - get FIT image size
 705  * @fit: pointer to the FIT format image header
 706  *
 707  * returns:
 708  *     size of the FIT image (blob) in memory
 709  */
 710 static inline ulong fit_get_size(const void *fit)
 711 {
 712         return fdt_totalsize(fit);
 713 }
 714
 715 /**
 716  * fit_get_end - get FIT image end
 717  * @fit: pointer to the FIT format image header
 718  *
 719  * returns:
 720  *     end address of the FIT image (blob) in memory
 721  */
 722 static inline ulong fit_get_end(const void *fit)
 723 {
 724         return (ulong)fit + fdt_totalsize(fit);
 725 }
 726
 727 /**
 728  * fit_get_name - get FIT node name
 729  * @fit: pointer to the FIT format image header
 730  *
 731  * returns:
 732  *     NULL, on error
 733  *     pointer to node name, on success
 734  */
 735 static inline const char *fit_get_name(const void *fit_hdr,
 736                 int noffset, int *len)
 737 {
 738         return fdt_get_name(fit_hdr, noffset, len);
 739 }
 740
 741 int fit_get_desc(const void *fit, int noffset, char **desc);
 742 int fit_get_timestamp(const void *fit, int noffset, time_t *timestamp);
 743
 744 int fit_image_get_node(const void *fit, const char *image_uname);
 745 int fit_image_get_os(const void *fit, int noffset, uint8_t *os);
 746 int fit_image_get_arch(const void *fit, int noffset, uint8_t *arch);
 747 int fit_image_get_type(const void *fit, int noffset, uint8_t *type);
 748 int fit_image_get_comp(const void *fit, int noffset, uint8_t *comp);
 749 int fit_image_get_load(const void *fit, int noffset, ulong *load);
 750 int fit_image_get_entry(const void *fit, int noffset, ulong *entry);
 751 int fit_image_get_data(const void *fit, int noffset,
 752                                 const void **data, size_t *size);
 753
 754 int fit_image_hash_get_algo(const void *fit, int noffset, char **algo);
 755 int fit_image_hash_get_value(const void *fit, int noffset, uint8_t **value,
 756                                 int *value_len);
 757
 758 int fit_set_timestamp(void *fit, int noffset, time_t timestamp);
 759
 760 /**
 761  * fit_add_verification_data() - add verification data to FIT image nodes
 762  *
 763  * @keydir:     Directory containing keys
 764  * @kwydest:    FDT blob to write public key information to
 765  * @fit:        Pointer to the FIT format image header
 766  * @comment:    Comment to add to signature nodes
 767  * @require_keys: Mark all keys as 'required'
 768  *
 769  * Adds hash values for all component images in the FIT blob.
 770  * Hashes are calculated for all component images which have hash subnodes
 771  * with algorithm property set to one of the supported hash algorithms.
 772  *
 773  * Also add signatures if signature nodes are present.
 774  *
 775  * returns
 776  *     0, on success
 777  *     libfdt error code, on failure
 778  */
 779 int fit_add_verification_data(const char *keydir, void *keydest, void *fit,
 780                               const char *comment, int require_keys);
 781
 782 int fit_image_verify(const void *fit, int noffset);
 783 int fit_config_verify(const void *fit, int conf_noffset);
 784 int fit_all_image_verify(const void *fit);
 785 int fit_image_check_os(const void *fit, int noffset, uint8_t os);
 786 int fit_image_check_arch(const void *fit, int noffset, uint8_t arch);
 787 int fit_image_check_type(const void *fit, int noffset, uint8_t type);
 788 int fit_image_check_comp(const void *fit, int noffset, uint8_t comp);
 789 int fit_check_format(const void *fit);
 790
 791 int fit_conf_find_compat(const void *fit, const void *fdt);
 792 int fit_conf_get_node(const void *fit, const char *conf_uname);
 793
 794 /**
 795  * fit_conf_get_prop_node() - Get node refered to by a configuration
 796  * @fit:        FIT to check
 797  * @noffset:    Offset of conf@xxx node to check
 798  * @prop_name:  Property to read from the conf node
 799  *
 800  * The conf@ nodes contain references to other nodes, using properties
 801  * like 'kernel = "kernel@1"'. Given such a property name (e.g. "kernel"),
 802  * return the offset of the node referred to (e.g. offset of node
 803  * "/images/kernel@1".
 804  */
 805 int fit_conf_get_prop_node(const void *fit, int noffset,
 806                 const char *prop_name);
 807
 808 void fit_conf_print(const void *fit, int noffset, const char *p);
 809
 810 int fit_check_ramdisk(const void *fit, int os_noffset,
 811                 uint8_t arch, int verify);
 812
 813 int calculate_hash(const void *data, int data_len, const char *algo,
 814                         uint8_t *value, int *value_len);
 815
 816 /*
 817  * At present we only support signing on the host, and verification on the
 818  * device
 819  */
 820 #if defined(CONFIG_FIT_SIGNATURE)
 821 # ifdef USE_HOSTCC
 822 #  define IMAGE_ENABLE_SIGN     1
 823 #  define IMAGE_ENABLE_VERIFY   0
 824 #else
 825 #  define IMAGE_ENABLE_SIGN     0
 826 #  define IMAGE_ENABLE_VERIFY   1
 827 # endif
 828 #else
 829 # define IMAGE_ENABLE_SIGN      0
 830 # define IMAGE_ENABLE_VERIFY    0
 831 #endif
 832
 833 #ifdef USE_HOSTCC
 834 # define gd_fdt_blob()          NULL
 835 #else
 836 # define gd_fdt_blob()          (gd->fdt_blob)
 837 #endif
 838
 839 #ifdef CONFIG_FIT_BEST_MATCH
 840 #define IMAGE_ENABLE_BEST_MATCH 1
 841 #else
 842 #define IMAGE_ENABLE_BEST_MATCH 0
 843 #endif
 844
 845 /* Information passed to the signing routines */
 846 struct image_sign_info {
 847         const char *keydir;             /* Directory conaining keys */
 848         const char *keyname;            /* Name of key to use */
 849         void *fit;                      /* Pointer to FIT blob */
 850         int node_offset;                /* Offset of signature node */
 851         struct image_sig_algo *algo;    /* Algorithm information */
 852         const void *fdt_blob;           /* FDT containing public keys */
 853         int required_keynode;           /* Node offset of key to use: -1=any */
 854         const char *require_keys;       /* Value for 'required' property */
 855 };
 856
 857 /* A part of an image, used for hashing */
 858 struct image_region {
 859         const void *data;
 860         int size;
 861 };
 862
 863 struct image_sig_algo {
 864         const char *name;               /* Name of algorithm */
 865
 866         /**
 867          * sign() - calculate and return signature for given input data
 868          *
 869          * @info:       Specifies key and FIT information
 870          * @data:       Pointer to the input data
 871          * @data_len:   Data length
 872          * @sigp:       Set to an allocated buffer holding the signature
 873          * @sig_len:    Set to length of the calculated hash
 874          *
 875          * This computes input data signature according to selected algorithm.
 876          * Resulting signature value is placed in an allocated buffer, the
 877          * pointer is returned as *sigp. The length of the calculated
 878          * signature is returned via the sig_len pointer argument. The caller
 879          * should free *sigp.
 880          *
 881          * @return: 0, on success, -ve on error
 882          */
 883         int (*sign)(struct image_sign_info *info,
 884                     const struct image_region region[],
 885                     int region_count, uint8_t **sigp, uint *sig_len);
 886
 887         /**
 888          * add_verify_data() - Add verification information to FDT
 889          *
 890          * Add public key information to the FDT node, suitable for
 891          * verification at run-time. The information added depends on the
 892          * algorithm being used.
 893          *
 894          * @info:       Specifies key and FIT information
 895          * @keydest:    Destination FDT blob for public key data
 896          * @return: 0, on success, -ve on error
 897          */
 898         int (*add_verify_data)(struct image_sign_info *info, void *keydest);
 899
 900         /**
 901          * verify() - Verify a signature against some data
 902          *
 903          * @info:       Specifies key and FIT information
 904          * @data:       Pointer to the input data
 905          * @data_len:   Data length
 906          * @sig:        Signature
 907          * @sig_len:    Number of bytes in signature
 908          * @return 0 if verified, -ve on error
 909          */
 910         int (*verify)(struct image_sign_info *info,
 911                       const struct image_region region[], int region_count,
 912                       uint8_t *sig, uint sig_len);
 913 };
 914
 915 /**
 916  * image_get_sig_algo() - Look up a signature algortihm
 917  *
 918  * @param name          Name of algorithm
 919  * @return pointer to algorithm information, or NULL if not found
 920  */
 921 struct image_sig_algo *image_get_sig_algo(const char *name);
 922
 923 /**
 924  * fit_image_verify_required_sigs() - Verify signatures marked as 'required'
 925  *
 926  * @fit:                FIT to check
 927  * @image_noffset:      Offset of image node to check
 928  * @data:               Image data to check
 929  * @size:               Size of image data
 930  * @sig_blob:           FDT containing public keys
 931  * @no_sigsp:           Returns 1 if no signatures were required, and
 932  *                      therefore nothing was checked. The caller may wish
 933  *                      to fall back to other mechanisms, or refuse to
 934  *                      boot.
 935  * @return 0 if all verified ok, <0 on error
 936  */
 937 int fit_image_verify_required_sigs(const void *fit, int image_noffset,
 938                 const char *data, size_t size, const void *sig_blob,
 939                 int *no_sigsp);
 940
 941 /**
 942  * fit_image_check_sig() - Check a single image signature node
 943  *
 944  * @fit:                FIT to check
 945  * @noffset:            Offset of signature node to check
 946  * @data:               Image data to check
 947  * @size:               Size of image data
 948  * @required_keynode:   Offset in the control FDT of the required key node,
 949  *                      if any. If this is given, then the image wil not
 950  *                      pass verification unless that key is used. If this is
 951  *                      -1 then any signature will do.
 952  * @err_msgp:           In the event of an error, this will be pointed to a
 953  *                      help error string to display to the user.
 954  * @return 0 if all verified ok, <0 on error
 955  */
 956 int fit_image_check_sig(const void *fit, int noffset, const void *data,
 957                 size_t size, int required_keynode, char **err_msgp);
 958
 959 /**
 960  * fit_region_make_list() - Make a list of regions to hash
 961  *
 962  * Given a list of FIT regions (offset, size) provided by libfdt, create
 963  * a list of regions (void *, size) for use by the signature creationg
 964  * and verification code.
 965  *
 966  * @fit:                FIT image to process
 967  * @fdt_regions:        Regions as returned by libfdt
 968  * @count:              Number of regions returned by libfdt
 969  * @region:             Place to put list of regions (NULL to allocate it)
 970  * @return pointer to list of regions, or NULL if out of memory
 971  */
 972 struct image_region *fit_region_make_list(const void *fit,
 973                 struct fdt_region *fdt_regions, int count,
 974                 struct image_region *region);
 975
 976 static inline int fit_image_check_target_arch(const void *fdt, int node)
 977 {
 978         return fit_image_check_arch(fdt, node, IH_ARCH_DEFAULT);
 979 }
 980
 981 #ifdef CONFIG_FIT_VERBOSE
 982 #define fit_unsupported(msg)    printf("! %s:%d " \
 983                                 "FIT images not supported for '%s'\n", \
 984                                 __FILE__, __LINE__, (msg))
 985
 986 #define fit_unsupported_reset(msg)      printf("! %s:%d " \
 987                                 "FIT images not supported for '%s' " \
 988                                 "- must reset board to recover!\n", \
 989                                 __FILE__, __LINE__, (msg))
 990 #else
 991 #define fit_unsupported(msg)
 992 #define fit_unsupported_reset(msg)
 993 #endif /* CONFIG_FIT_VERBOSE */
 994 #endif /* CONFIG_FIT */
 995
 996 #endif  /* __IMAGE_H__ */