// SPDX-License-Identifier: GPL-2.0+
/*
 * Image manipulator for Marvell SoCs
 *  supports Kirkwood, Dove, Armada 370, Armada XP, Armada 375, Armada 38x and
 *  Armada 39x
 *
 * (C) Copyright 2013 Thomas Petazzoni
 * <thomas.petazzoni@free-electrons.com>
 *
 * (C) Copyright 2022 Pali Rohár <pali@kernel.org>
 */

#define OPENSSL_API_COMPAT 0x10101000L

#include "imagetool.h"
#include <limits.h>
#include <image.h>
#include <stdarg.h>
#include <stdint.h>
#include "kwbimage.h"

#include <openssl/bn.h>
#include <openssl/rsa.h>
#include <openssl/pem.h>
#include <openssl/err.h>
#include <openssl/evp.h>

#if OPENSSL_VERSION_NUMBER < 0x10100000L || \
    (defined(LIBRESSL_VERSION_NUMBER) && LIBRESSL_VERSION_NUMBER < 0x2070000fL)
static void RSA_get0_key(const RSA *r,
                 const BIGNUM **n, const BIGNUM **e, const BIGNUM **d)
{
   if (n != NULL)
       *n = r->n;
   if (e != NULL)
       *e = r->e;
   if (d != NULL)
       *d = r->d;
}

#elif !defined(LIBRESSL_VERSION_NUMBER)
void EVP_MD_CTX_cleanup(EVP_MD_CTX *ctx)
{
        EVP_MD_CTX_reset(ctx);
}
#endif

/* fls - find last (most-significant) bit set in 4-bit integer */
static inline int fls4(int num)
{
        if (num & 0x8)
                return 4;
        else if (num & 0x4)
                return 3;
        else if (num & 0x2)
                return 2;
        else if (num & 0x1)
                return 1;
        else
                return 0;
}

static struct image_cfg_element *image_cfg;
static int cfgn;
static int verbose_mode;

struct boot_mode {
        unsigned int id;
        const char *name;
};

/*
 * SHA2-256 hash
 */
struct hash_v1 {
        uint8_t hash[32];
};

struct boot_mode boot_modes[] = {
        { IBR_HDR_I2C_ID, "i2c"  },
        { IBR_HDR_SPI_ID, "spi"  },
        { IBR_HDR_NAND_ID, "nand" },
        { IBR_HDR_SATA_ID, "sata" },
        { IBR_HDR_PEX_ID, "pex"  },
        { IBR_HDR_UART_ID, "uart" },
        { IBR_HDR_SDIO_ID, "sdio" },
        {},
};

struct nand_ecc_mode {
        unsigned int id;
        const char *name;
};

struct nand_ecc_mode nand_ecc_modes[] = {
        { IBR_HDR_ECC_DEFAULT, "default" },
        { IBR_HDR_ECC_FORCED_HAMMING, "hamming" },
        { IBR_HDR_ECC_FORCED_RS, "rs" },
        { IBR_HDR_ECC_DISABLED, "disabled" },
        {},
};

/* Used to identify an undefined execution or destination address */
#define ADDR_INVALID ((uint32_t)-1)

#define BINARY_MAX_ARGS 255

/* In-memory representation of a line of the configuration file */

enum image_cfg_type {
        IMAGE_CFG_VERSION = 0x1,
        IMAGE_CFG_BOOT_FROM,
        IMAGE_CFG_DEST_ADDR,
        IMAGE_CFG_EXEC_ADDR,
        IMAGE_CFG_NAND_BLKSZ,
        IMAGE_CFG_NAND_BADBLK_LOCATION,
        IMAGE_CFG_NAND_ECC_MODE,
        IMAGE_CFG_NAND_PAGESZ,
        IMAGE_CFG_CPU,
        IMAGE_CFG_BINARY,
        IMAGE_CFG_DATA,
        IMAGE_CFG_DATA_DELAY,
        IMAGE_CFG_BAUDRATE,
        IMAGE_CFG_UART_PORT,
        IMAGE_CFG_UART_MPP,
        IMAGE_CFG_DEBUG,
        IMAGE_CFG_KAK,
        IMAGE_CFG_CSK,
        IMAGE_CFG_CSK_INDEX,
        IMAGE_CFG_JTAG_DELAY,
        IMAGE_CFG_BOX_ID,
        IMAGE_CFG_FLASH_ID,
        IMAGE_CFG_SEC_COMMON_IMG,
        IMAGE_CFG_SEC_SPECIALIZED_IMG,
        IMAGE_CFG_SEC_BOOT_DEV,
        IMAGE_CFG_SEC_FUSE_DUMP,

        IMAGE_CFG_COUNT
} type;

static const char * const id_strs[] = {
        [IMAGE_CFG_VERSION] = "VERSION",
        [IMAGE_CFG_BOOT_FROM] = "BOOT_FROM",
        [IMAGE_CFG_DEST_ADDR] = "DEST_ADDR",
        [IMAGE_CFG_EXEC_ADDR] = "EXEC_ADDR",
        [IMAGE_CFG_NAND_BLKSZ] = "NAND_BLKSZ",
        [IMAGE_CFG_NAND_BADBLK_LOCATION] = "NAND_BADBLK_LOCATION",
        [IMAGE_CFG_NAND_ECC_MODE] = "NAND_ECC_MODE",
        [IMAGE_CFG_NAND_PAGESZ] = "NAND_PAGE_SIZE",
        [IMAGE_CFG_CPU] = "CPU",
        [IMAGE_CFG_BINARY] = "BINARY",
        [IMAGE_CFG_DATA] = "DATA",
        [IMAGE_CFG_DATA_DELAY] = "DATA_DELAY",
        [IMAGE_CFG_BAUDRATE] = "BAUDRATE",
        [IMAGE_CFG_UART_PORT] = "UART_PORT",
        [IMAGE_CFG_UART_MPP] = "UART_MPP",
        [IMAGE_CFG_DEBUG] = "DEBUG",
        [IMAGE_CFG_KAK] = "KAK",
        [IMAGE_CFG_CSK] = "CSK",
        [IMAGE_CFG_CSK_INDEX] = "CSK_INDEX",
        [IMAGE_CFG_JTAG_DELAY] = "JTAG_DELAY",
        [IMAGE_CFG_BOX_ID] = "BOX_ID",
        [IMAGE_CFG_FLASH_ID] = "FLASH_ID",
        [IMAGE_CFG_SEC_COMMON_IMG] = "SEC_COMMON_IMG",
        [IMAGE_CFG_SEC_SPECIALIZED_IMG] = "SEC_SPECIALIZED_IMG",
        [IMAGE_CFG_SEC_BOOT_DEV] = "SEC_BOOT_DEV",
        [IMAGE_CFG_SEC_FUSE_DUMP] = "SEC_FUSE_DUMP"
};

struct image_cfg_element {
        enum image_cfg_type type;
        union {
                unsigned int version;
                unsigned int cpu_sheeva;
                unsigned int bootfrom;
                struct {
                        const char *file;
                        unsigned int loadaddr;
                        unsigned int args[BINARY_MAX_ARGS];
                        unsigned int nargs;
                } binary;
                unsigned int dstaddr;
                unsigned int execaddr;
                unsigned int nandblksz;
                unsigned int nandbadblklocation;
                unsigned int nandeccmode;
                unsigned int nandpagesz;
                struct ext_hdr_v0_reg regdata;
                unsigned int regdata_delay;
                unsigned int baudrate;
                unsigned int uart_port;
                unsigned int uart_mpp;
                unsigned int debug;
                const char *key_name;
                int csk_idx;
                uint8_t jtag_delay;
                uint32_t boxid;
                uint32_t flashid;
                bool sec_specialized_img;
                unsigned int sec_boot_dev;
                const char *name;
        };
};

#define IMAGE_CFG_ELEMENT_MAX 256

/*
 * Utility functions to manipulate boot mode and ecc modes (convert
 * them back and forth between description strings and the
 * corresponding numerical identifiers).
 */

static const char *image_boot_mode_name(unsigned int id)
{
        int i;

        for (i = 0; boot_modes[i].name; i++)
                if (boot_modes[i].id == id)
                        return boot_modes[i].name;
        return NULL;
}

static int image_boot_mode_id(const char *boot_mode_name)
{
        int i;

        for (i = 0; boot_modes[i].name; i++)
                if (!strcmp(boot_modes[i].name, boot_mode_name))
                        return boot_modes[i].id;

        return -1;
}

static const char *image_nand_ecc_mode_name(unsigned int id)
{
        int i;

        for (i = 0; nand_ecc_modes[i].name; i++)
                if (nand_ecc_modes[i].id == id)
                        return nand_ecc_modes[i].name;

        return NULL;
}

static int image_nand_ecc_mode_id(const char *nand_ecc_mode_name)
{
        int i;

        for (i = 0; nand_ecc_modes[i].name; i++)
                if (!strcmp(nand_ecc_modes[i].name, nand_ecc_mode_name))
                        return nand_ecc_modes[i].id;
        return -1;
}

static struct image_cfg_element *
image_find_option(unsigned int optiontype)
{
        int i;

        for (i = 0; i < cfgn; i++) {
                if (image_cfg[i].type == optiontype)
                        return &image_cfg[i];
        }

        return NULL;
}

static unsigned int
image_count_options(unsigned int optiontype)
{
        int i;
        unsigned int count = 0;

        for (i = 0; i < cfgn; i++)
                if (image_cfg[i].type == optiontype)
                        count++;

        return count;
}

static int image_get_csk_index(void)
{
        struct image_cfg_element *e;

        e = image_find_option(IMAGE_CFG_CSK_INDEX);
        if (!e)
                return -1;

        return e->csk_idx;
}

static bool image_get_spezialized_img(void)
{
        struct image_cfg_element *e;

        e = image_find_option(IMAGE_CFG_SEC_SPECIALIZED_IMG);
        if (!e)
                return false;

        return e->sec_specialized_img;
}

static int image_get_bootfrom(void)
{
        struct image_cfg_element *e;

        e = image_find_option(IMAGE_CFG_BOOT_FROM);
        if (!e)
                /* fallback to SPI if no BOOT_FROM is not provided */
                return IBR_HDR_SPI_ID;

        return e->bootfrom;
}

static int image_is_cpu_sheeva(void)
{
        struct image_cfg_element *e;

        e = image_find_option(IMAGE_CFG_CPU);
        if (!e)
                return 0;

        return e->cpu_sheeva;
}

/*
 * Compute a 8-bit checksum of a memory area. This algorithm follows
 * the requirements of the Marvell SoC BootROM specifications.
 */
static uint8_t image_checksum8(void *start, uint32_t len)
{
        uint8_t csum = 0;
        uint8_t *p = start;

        /* check len and return zero checksum if invalid */
        if (!len)
                return 0;

        do {
                csum += *p;
                p++;
        } while (--len);

        return csum;
}

/*
 * Verify checksum over a complete header that includes the checksum field.
 * Return 1 when OK, otherwise 0.
 */
static int main_hdr_checksum_ok(void *hdr)
{
        /* Offsets of checksum in v0 and v1 headers are the same */
        struct main_hdr_v0 *main_hdr = (struct main_hdr_v0 *)hdr;
        uint8_t checksum;

        checksum = image_checksum8(hdr, kwbheader_size_for_csum(hdr));
        /* Calculated checksum includes the header checksum field. Compensate
         * for that.
         */
        checksum -= main_hdr->checksum;

        return checksum == main_hdr->checksum;
}

static uint32_t image_checksum32(void *start, uint32_t len)
{
        uint32_t csum = 0;
        uint32_t *p = start;

        /* check len and return zero checksum if invalid */
        if (!len)
                return 0;

        if (len % sizeof(uint32_t)) {
                fprintf(stderr, "Length %d is not in multiple of %zu\n",
                        len, sizeof(uint32_t));
                return 0;
        }

        do {
                csum += *p;
                p++;
                len -= sizeof(uint32_t);
        } while (len > 0);

        return csum;
}

static unsigned int options_to_baudrate(uint8_t options)
{
        switch (options & 0x7) {
        case MAIN_HDR_V1_OPT_BAUD_2400:
                return 2400;
        case MAIN_HDR_V1_OPT_BAUD_4800:
                return 4800;
        case MAIN_HDR_V1_OPT_BAUD_9600:
                return 9600;
        case MAIN_HDR_V1_OPT_BAUD_19200:
                return 19200;
        case MAIN_HDR_V1_OPT_BAUD_38400:
                return 38400;
        case MAIN_HDR_V1_OPT_BAUD_57600:
                return 57600;
        case MAIN_HDR_V1_OPT_BAUD_115200:
                return 115200;
        case MAIN_HDR_V1_OPT_BAUD_DEFAULT:
        default:
                return 0;
        }
}

static uint8_t baudrate_to_option(unsigned int baudrate)
{
        switch (baudrate) {
        case 2400:
                return MAIN_HDR_V1_OPT_BAUD_2400;
        case 4800:
                return MAIN_HDR_V1_OPT_BAUD_4800;
        case 9600:
                return MAIN_HDR_V1_OPT_BAUD_9600;
        case 19200:
                return MAIN_HDR_V1_OPT_BAUD_19200;
        case 38400:
                return MAIN_HDR_V1_OPT_BAUD_38400;
        case 57600:
                return MAIN_HDR_V1_OPT_BAUD_57600;
        case 115200:
                return MAIN_HDR_V1_OPT_BAUD_115200;
        default:
                return MAIN_HDR_V1_OPT_BAUD_DEFAULT;
        }
}

static void kwb_msg(const char *fmt, ...)
{
        if (verbose_mode) {
                va_list ap;

                va_start(ap, fmt);
                vfprintf(stdout, fmt, ap);
                va_end(ap);
        }
}

static int openssl_err(const char *msg)
{
        unsigned long ssl_err = ERR_get_error();

        fprintf(stderr, "%s", msg);
        fprintf(stderr, ": %s\n",
                ERR_error_string(ssl_err, 0));

        return -1;
}

static int kwb_load_rsa_key(const char *keydir, const char *name, RSA **p_rsa)
{
        char path[PATH_MAX];
        RSA *rsa;
        FILE *f;

        if (!keydir)
                keydir = ".";

        snprintf(path, sizeof(path), "%s/%s.key", keydir, name);
        f = fopen(path, "r");
        if (!f) {
                fprintf(stderr, "Couldn't open RSA private key: '%s': %s\n",
                        path, strerror(errno));
                return -ENOENT;
        }

        rsa = PEM_read_RSAPrivateKey(f, 0, NULL, "");
        if (!rsa) {
                openssl_err("Failure reading private key");
                fclose(f);
                return -EPROTO;
        }
        fclose(f);
        *p_rsa = rsa;

        return 0;
}

static int kwb_load_cfg_key(struct image_tool_params *params,
                            unsigned int cfg_option, const char *key_name,
                            RSA **p_key)
{
        struct image_cfg_element *e_key;
        RSA *key;
        int res;

        *p_key = NULL;

        e_key = image_find_option(cfg_option);
        if (!e_key) {
                fprintf(stderr, "%s not configured\n", key_name);
                return -ENOENT;
        }

        res = kwb_load_rsa_key(params->keydir, e_key->key_name, &key);
        if (res < 0) {
                fprintf(stderr, "Failed to load %s\n", key_name);
                return -ENOENT;
        }

        *p_key = key;

        return 0;
}

static int kwb_load_kak(struct image_tool_params *params, RSA **p_kak)
{
        return kwb_load_cfg_key(params, IMAGE_CFG_KAK, "KAK", p_kak);
}

static int kwb_load_csk(struct image_tool_params *params, RSA **p_csk)
{
        return kwb_load_cfg_key(params, IMAGE_CFG_CSK, "CSK", p_csk);
}

static int kwb_compute_pubkey_hash(struct pubkey_der_v1 *pk,
                                   struct hash_v1 *hash)
{
        EVP_MD_CTX *ctx;
        unsigned int key_size;
        unsigned int hash_size;
        int ret = 0;

        if (!pk || !hash || pk->key[0] != 0x30 || pk->key[1] != 0x82)
                return -EINVAL;

        key_size = (pk->key[2] << 8) + pk->key[3] + 4;

        ctx = EVP_MD_CTX_create();
        if (!ctx)
                return openssl_err("EVP context creation failed");

        EVP_MD_CTX_init(ctx);
        if (!EVP_DigestInit(ctx, EVP_sha256())) {
                ret = openssl_err("Digest setup failed");
                goto hash_err_ctx;
        }

        if (!EVP_DigestUpdate(ctx, pk->key, key_size)) {
                ret = openssl_err("Hashing data failed");
                goto hash_err_ctx;
        }

        if (!EVP_DigestFinal(ctx, hash->hash, &hash_size)) {
                ret = openssl_err("Could not obtain hash");
                goto hash_err_ctx;
        }

        EVP_MD_CTX_cleanup(ctx);

hash_err_ctx:
        EVP_MD_CTX_destroy(ctx);
        return ret;
}

static int kwb_import_pubkey(RSA **key, struct pubkey_der_v1 *src, char *keyname)
{
        RSA *rsa;
        const unsigned char *ptr;

        if (!key || !src)
                goto fail;

        ptr = src->key;
        rsa = d2i_RSAPublicKey(key, &ptr, sizeof(src->key));
        if (!rsa) {
                openssl_err("error decoding public key");
                goto fail;
        }

        return 0;
fail:
        fprintf(stderr, "Failed to decode %s pubkey\n", keyname);
        return -EINVAL;
}

static int kwb_export_pubkey(RSA *key, struct pubkey_der_v1 *dst, FILE *hashf,
                             char *keyname)
{
        int size_exp, size_mod, size_seq;
        const BIGNUM *key_e, *key_n;
        uint8_t *cur;
        char *errmsg = "Failed to encode %s\n";

        RSA_get0_key(key, NULL, &key_e, NULL);
        RSA_get0_key(key, &key_n, NULL, NULL);

        if (!key || !key_e || !key_n || !dst) {
                fprintf(stderr, "export pk failed: (%p, %p, %p, %p)",
                        key, key_e, key_n, dst);
                fprintf(stderr, errmsg, keyname);
                return -EINVAL;
        }

        /*
         * According to the specs, the key should be PKCS#1 DER encoded.
         * But unfortunately the really required encoding seems to be different;
         * it violates DER...! (But it still conformes to BER.)
         * (Length always in long form w/ 2 byte length code; no leading zero
         * when MSB of first byte is set...)
         * So we cannot use the encoding func provided by OpenSSL and have to
         * do the encoding manually.
         */

        size_exp = BN_num_bytes(key_e);
        size_mod = BN_num_bytes(key_n);
        size_seq = 4 + size_mod + 4 + size_exp;

        if (size_mod > 256) {
                fprintf(stderr, "export pk failed: wrong mod size: %d\n",
                        size_mod);
                fprintf(stderr, errmsg, keyname);
                return -EINVAL;
        }

        if (4 + size_seq > sizeof(dst->key)) {
                fprintf(stderr, "export pk failed: seq too large (%d, %zu)\n",
                        4 + size_seq, sizeof(dst->key));
                fprintf(stderr, errmsg, keyname);
                return -ENOBUFS;
        }

        cur = dst->key;

        /* PKCS#1 (RFC3447) RSAPublicKey structure */
        *cur++ = 0x30;          /* SEQUENCE */
        *cur++ = 0x82;
        *cur++ = (size_seq >> 8) & 0xFF;
        *cur++ = size_seq & 0xFF;
        /* Modulus */
        *cur++ = 0x02;          /* INTEGER */
        *cur++ = 0x82;
        *cur++ = (size_mod >> 8) & 0xFF;
        *cur++ = size_mod & 0xFF;
        BN_bn2bin(key_n, cur);
        cur += size_mod;
        /* Exponent */
        *cur++ = 0x02;          /* INTEGER */
        *cur++ = 0x82;
        *cur++ = (size_exp >> 8) & 0xFF;
        *cur++ = size_exp & 0xFF;
        BN_bn2bin(key_e, cur);

        if (hashf) {
                struct hash_v1 pk_hash;
                int i;
                int ret = 0;

                ret = kwb_compute_pubkey_hash(dst, &pk_hash);
                if (ret < 0) {
                        fprintf(stderr, errmsg, keyname);
                        return ret;
                }

                fprintf(hashf, "SHA256 = ");
                for (i = 0 ; i < sizeof(pk_hash.hash); ++i)
                        fprintf(hashf, "%02X", pk_hash.hash[i]);
                fprintf(hashf, "\n");
        }

        return 0;
}

static int kwb_sign(RSA *key, void *data, int datasz, struct sig_v1 *sig,
                    char *signame)
{
        EVP_PKEY *evp_key;
        EVP_MD_CTX *ctx;
        unsigned int sig_size;
        int size;
        int ret = 0;

        evp_key = EVP_PKEY_new();
        if (!evp_key)
                return openssl_err("EVP_PKEY object creation failed");

        if (!EVP_PKEY_set1_RSA(evp_key, key)) {
                ret = openssl_err("EVP key setup failed");
                goto err_key;
        }

        size = EVP_PKEY_size(evp_key);
        if (size > sizeof(sig->sig)) {
                fprintf(stderr, "Buffer to small for signature (%d bytes)\n",
                        size);
                ret = -ENOBUFS;
                goto err_key;
        }

        ctx = EVP_MD_CTX_create();
        if (!ctx) {
                ret = openssl_err("EVP context creation failed");
                goto err_key;
        }
        EVP_MD_CTX_init(ctx);
        if (!EVP_SignInit(ctx, EVP_sha256())) {
                ret = openssl_err("Signer setup failed");
                goto err_ctx;
        }

        if (!EVP_SignUpdate(ctx, data, datasz)) {
                ret = openssl_err("Signing data failed");
                goto err_ctx;
        }

        if (!EVP_SignFinal(ctx, sig->sig, &sig_size, evp_key)) {
                ret = openssl_err("Could not obtain signature");
                goto err_ctx;
        }

        EVP_MD_CTX_cleanup(ctx);
        EVP_MD_CTX_destroy(ctx);
        EVP_PKEY_free(evp_key);

        return 0;

err_ctx:
        EVP_MD_CTX_destroy(ctx);
err_key:
        EVP_PKEY_free(evp_key);
        fprintf(stderr, "Failed to create %s signature\n", signame);
        return ret;
}

static int kwb_verify(RSA *key, void *data, int datasz, struct sig_v1 *sig,
                      char *signame)
{
        EVP_PKEY *evp_key;
        EVP_MD_CTX *ctx;
        int size;
        int ret = 0;

        evp_key = EVP_PKEY_new();
        if (!evp_key)
                return openssl_err("EVP_PKEY object creation failed");

        if (!EVP_PKEY_set1_RSA(evp_key, key)) {
                ret = openssl_err("EVP key setup failed");
                goto err_key;
        }

        size = EVP_PKEY_size(evp_key);
        if (size > sizeof(sig->sig)) {
                fprintf(stderr, "Invalid signature size (%d bytes)\n",
                        size);
                ret = -EINVAL;
                goto err_key;
        }

        ctx = EVP_MD_CTX_create();
        if (!ctx) {
                ret = openssl_err("EVP context creation failed");
                goto err_key;
        }
        EVP_MD_CTX_init(ctx);
        if (!EVP_VerifyInit(ctx, EVP_sha256())) {
                ret = openssl_err("Verifier setup failed");
                goto err_ctx;
        }

        if (!EVP_VerifyUpdate(ctx, data, datasz)) {
                ret = openssl_err("Hashing data failed");
                goto err_ctx;
        }

        if (EVP_VerifyFinal(ctx, sig->sig, sizeof(sig->sig), evp_key) != 1) {
                ret = openssl_err("Could not verify signature");
                goto err_ctx;
        }

        EVP_MD_CTX_cleanup(ctx);
        EVP_MD_CTX_destroy(ctx);
        EVP_PKEY_free(evp_key);

        return 0;

err_ctx:
        EVP_MD_CTX_destroy(ctx);
err_key:
        EVP_PKEY_free(evp_key);
        fprintf(stderr, "Failed to verify %s signature\n", signame);
        return ret;
}

static int kwb_sign_and_verify(RSA *key, void *data, int datasz,
                               struct sig_v1 *sig, char *signame)
{
        if (kwb_sign(key, data, datasz, sig, signame) < 0)
                return -1;

        if (kwb_verify(key, data, datasz, sig, signame) < 0)
                return -1;

        return 0;
}


static int kwb_dump_fuse_cmds_38x(FILE *out, struct secure_hdr_v1 *sec_hdr)
{
        struct hash_v1 kak_pub_hash;
        struct image_cfg_element *e;
        unsigned int fuse_line;
        int i, idx;
        uint8_t *ptr;
        uint32_t val;
        int ret = 0;

        if (!out || !sec_hdr)
                return -EINVAL;

        ret = kwb_compute_pubkey_hash(&sec_hdr->kak, &kak_pub_hash);
        if (ret < 0)
                goto done;

        fprintf(out, "# burn KAK pub key hash\n");
        ptr = kak_pub_hash.hash;
        for (fuse_line = 26; fuse_line <= 30; ++fuse_line) {
                fprintf(out, "fuse prog -y %u 0 ", fuse_line);

                for (i = 4; i-- > 0;)
                        fprintf(out, "%02hx", (ushort)ptr[i]);
                ptr += 4;
                fprintf(out, " 00");

                if (fuse_line < 30) {
                        for (i = 3; i-- > 0;)
                                fprintf(out, "%02hx", (ushort)ptr[i]);
                        ptr += 3;
                } else {
                        fprintf(out, "000000");
                }

                fprintf(out, " 1\n");
        }

        fprintf(out, "# burn CSK selection\n");

        idx = image_get_csk_index();
        if (idx < 0 || idx > 15) {
                ret = -EINVAL;
                goto done;
        }
        if (idx > 0) {
                for (fuse_line = 31; fuse_line < 31 + idx; ++fuse_line)
                        fprintf(out, "fuse prog -y %u 0 00000001 00000000 1\n",
                                fuse_line);
        } else {
                fprintf(out, "# CSK index is 0; no mods needed\n");
        }

        e = image_find_option(IMAGE_CFG_BOX_ID);
        if (e) {
                fprintf(out, "# set box ID\n");
                fprintf(out, "fuse prog -y 48 0 %08x 00000000 1\n", e->boxid);
        }

        e = image_find_option(IMAGE_CFG_FLASH_ID);
        if (e) {
                fprintf(out, "# set flash ID\n");
                fprintf(out, "fuse prog -y 47 0 %08x 00000000 1\n", e->flashid);
        }

        fprintf(out, "# enable secure mode ");
        fprintf(out, "(must be the last fuse line written)\n");

        val = 1;
        e = image_find_option(IMAGE_CFG_SEC_BOOT_DEV);
        if (!e) {
                fprintf(stderr, "ERROR: secured mode boot device not given\n");
                ret = -EINVAL;
                goto done;
        }

        if (e->sec_boot_dev > 0xff) {
                fprintf(stderr, "ERROR: secured mode boot device invalid\n");
                ret = -EINVAL;
                goto done;
        }

        val |= (e->sec_boot_dev << 8);

        fprintf(out, "fuse prog -y 24 0 %08x 0103e0a9 1\n", val);

        fprintf(out, "# lock (unused) fuse lines (0-23)s\n");
        for (fuse_line = 0; fuse_line < 24; ++fuse_line)
                fprintf(out, "fuse prog -y %u 2 1\n", fuse_line);

        fprintf(out, "# OK, that's all :-)\n");

done:
        return ret;
}

static int kwb_dump_fuse_cmds(struct secure_hdr_v1 *sec_hdr)
{
        int ret = 0;
        struct image_cfg_element *e;

        e = image_find_option(IMAGE_CFG_SEC_FUSE_DUMP);
        if (!e)
                return 0;

        if (!strcmp(e->name, "a38x")) {
                FILE *out = fopen("kwb_fuses_a38x.txt", "w+");

                if (!out) {
                        fprintf(stderr, "Couldn't open eFuse settings: '%s': %s\n",
                                "kwb_fuses_a38x.txt", strerror(errno));
                        return -ENOENT;
                }

                kwb_dump_fuse_cmds_38x(out, sec_hdr);
                fclose(out);
                goto done;
        }

        ret = -ENOSYS;

done:
        return ret;
}

static size_t image_headersz_align(size_t headersz, uint8_t blockid)
{
        /*
         * Header needs to be 4-byte aligned, which is already ensured by code
         * above. Moreover UART images must have header aligned to 128 bytes
         * (xmodem block size), NAND images to 256 bytes (ECC calculation),
         * and SATA and SDIO images to 512 bytes (storage block size).
         * Note that SPI images do not have to have header size aligned
         * to 256 bytes because it is possible to read from SPI storage from
         * any offset (read offset does not have to be aligned to block size).
         */
        if (blockid == IBR_HDR_UART_ID)
                return ALIGN(headersz, 128);
        else if (blockid == IBR_HDR_NAND_ID)
                return ALIGN(headersz, 256);
        else if (blockid == IBR_HDR_SATA_ID || blockid == IBR_HDR_SDIO_ID)
                return ALIGN(headersz, 512);
        else
                return headersz;
}

static size_t image_headersz_v0(int *hasext)
{
        size_t headersz;

        headersz = sizeof(struct main_hdr_v0);
        if (image_count_options(IMAGE_CFG_DATA) > 0) {
                headersz += sizeof(struct ext_hdr_v0);
                if (hasext)
                        *hasext = 1;
        }

        return image_headersz_align(headersz, image_get_bootfrom());
}

static void *image_create_v0(size_t *imagesz, struct image_tool_params *params,
                             int payloadsz)
{
        struct image_cfg_element *e;
        size_t headersz;
        struct main_hdr_v0 *main_hdr;
        uint8_t *image;
        int has_ext = 0;

        /*
         * Calculate the size of the header and the size of the
         * payload
         */
        headersz = image_headersz_v0(&has_ext);

        image = malloc(headersz);
        if (!image) {
                fprintf(stderr, "Cannot allocate memory for image\n");
                return NULL;
        }

        memset(image, 0, headersz);

        main_hdr = (struct main_hdr_v0 *)image;

        /* Fill in the main header */
        main_hdr->blocksize =
                cpu_to_le32(payloadsz);
        main_hdr->srcaddr   = cpu_to_le32(headersz);
        main_hdr->ext       = has_ext;
        main_hdr->version   = 0;
        main_hdr->destaddr  = cpu_to_le32(params->addr);
        main_hdr->execaddr  = cpu_to_le32(params->ep);
        main_hdr->blockid   = image_get_bootfrom();

        e = image_find_option(IMAGE_CFG_NAND_ECC_MODE);

        if (e)
                main_hdr->nandeccmode = e->nandeccmode;
        e = image_find_option(IMAGE_CFG_NAND_BLKSZ);
        if (e)
                main_hdr->nandblocksize = e->nandblksz / (64 * 1024);
        e = image_find_option(IMAGE_CFG_NAND_PAGESZ);
        if (e)
                main_hdr->nandpagesize = cpu_to_le16(e->nandpagesz);
        e = image_find_option(IMAGE_CFG_NAND_BADBLK_LOCATION);
        if (e)
                main_hdr->nandbadblklocation = e->nandbadblklocation;
        main_hdr->checksum = image_checksum8(image,
                                             sizeof(struct main_hdr_v0));

        /*
         * For SATA srcaddr is specified in number of sectors starting from
         * sector 0. The main header is stored at sector number 1.
         * This expects the sector size to be 512 bytes.
         * Header size is already aligned.
         */
        if (main_hdr->blockid == IBR_HDR_SATA_ID)
                main_hdr->srcaddr = cpu_to_le32(headersz / 512 + 1);

        /*
         * For SDIO srcaddr is specified in number of sectors starting from
         * sector 0. The main header is stored at sector number 0.
         * This expects sector size to be 512 bytes.
         * Header size is already aligned.
         */
        if (main_hdr->blockid == IBR_HDR_SDIO_ID)
                main_hdr->srcaddr = cpu_to_le32(headersz / 512);

        /* For PCIe srcaddr is not used and must be set to 0xFFFFFFFF. */
        if (main_hdr->blockid == IBR_HDR_PEX_ID)
                main_hdr->srcaddr = cpu_to_le32(0xFFFFFFFF);

        /* Generate the ext header */
        if (has_ext) {
                struct ext_hdr_v0 *ext_hdr;
                int cfgi, datai;

                ext_hdr = (struct ext_hdr_v0 *)
                                (image + sizeof(struct main_hdr_v0));
                ext_hdr->offset = cpu_to_le32(0x40);

                for (cfgi = 0, datai = 0; cfgi < cfgn; cfgi++) {
                        e = &image_cfg[cfgi];
                        if (e->type != IMAGE_CFG_DATA)
                                continue;

                        ext_hdr->rcfg[datai].raddr =
                                cpu_to_le32(e->regdata.raddr);
                        ext_hdr->rcfg[datai].rdata =
                                cpu_to_le32(e->regdata.rdata);
                        datai++;
                }

                ext_hdr->checksum = image_checksum8(ext_hdr,
                                                    sizeof(struct ext_hdr_v0));
        }

        *imagesz = headersz;
        return image;
}

static size_t image_headersz_v1(int *hasext)
{
        struct image_cfg_element *e;
        unsigned int count;
        size_t headersz;
        int cpu_sheeva;
        struct stat s;
        int cfgi;
        int ret;

        /*
         * Calculate the size of the header and the size of the
         * payload
         */
        headersz = sizeof(struct main_hdr_v1);

        if (image_get_csk_index() >= 0) {
                headersz += sizeof(struct secure_hdr_v1);
                if (hasext)
                        *hasext = 1;
        }

        cpu_sheeva = image_is_cpu_sheeva();

        count = 0;
        for (cfgi = 0; cfgi < cfgn; cfgi++) {
                e = &image_cfg[cfgi];

                if (e->type == IMAGE_CFG_DATA)
                        count++;

                if (e->type == IMAGE_CFG_DATA_DELAY ||
                    (e->type == IMAGE_CFG_BINARY && count > 0)) {
                        headersz += sizeof(struct register_set_hdr_v1) + 8 * count + 4;
                        count = 0;
                }

                if (e->type != IMAGE_CFG_BINARY)
                        continue;

                ret = stat(e->binary.file, &s);
                if (ret < 0) {
                        char cwd[PATH_MAX];
                        char *dir = cwd;

                        memset(cwd, 0, sizeof(cwd));
                        if (!getcwd(cwd, sizeof(cwd))) {
                                dir = "current working directory";
                                perror("getcwd() failed");
                        }

                        fprintf(stderr,
                                "Didn't find the file '%s' in '%s' which is mandatory to generate the image\n"
                                "This file generally contains the DDR3 training code, and should be extracted from an existing bootable\n"
                                "image for your board. Use 'dumpimage -T kwbimage -p 1' to extract it from an existing image.\n",
                                e->binary.file, dir);
                        return 0;
                }

                headersz += sizeof(struct opt_hdr_v1) + sizeof(uint32_t) +
                        (e->binary.nargs) * sizeof(uint32_t);

                if (e->binary.loadaddr) {
                        /*
                         * BootROM loads kwbimage header (in which the
                         * executable code is also stored) to address
                         * 0x40004000 or 0x40000000. Thus there is
                         * restriction for the load address of the N-th
                         * BINARY image.
                         */
                        unsigned int base_addr, low_addr, high_addr;

                        base_addr = cpu_sheeva ? 0x40004000 : 0x40000000;
                        low_addr = base_addr + headersz;
                        high_addr = low_addr +
                                    (BINARY_MAX_ARGS - e->binary.nargs) * sizeof(uint32_t);

                        if (cpu_sheeva && e->binary.loadaddr % 16) {
                                fprintf(stderr,
                                        "Invalid LOAD_ADDRESS 0x%08x for BINARY %s with %d args.\n"
                                        "Address for CPU SHEEVA must be 16-byte aligned.\n",
                                        e->binary.loadaddr, e->binary.file, e->binary.nargs);
                                return 0;
                        }

                        if (e->binary.loadaddr % 4 || e->binary.loadaddr < low_addr ||
                            e->binary.loadaddr > high_addr) {
                                fprintf(stderr,
                                        "Invalid LOAD_ADDRESS 0x%08x for BINARY %s with %d args.\n"
                                        "Address must be 4-byte aligned and in range 0x%08x-0x%08x.\n",
                                        e->binary.loadaddr, e->binary.file,
                                        e->binary.nargs, low_addr, high_addr);
                                return 0;
                        }
                        headersz = e->binary.loadaddr - base_addr;
                } else if (cpu_sheeva) {
                        headersz = ALIGN(headersz, 16);
                } else {
                        headersz = ALIGN(headersz, 4);
                }

                headersz += ALIGN(s.st_size, 4) + sizeof(uint32_t);
                if (hasext)
                        *hasext = 1;
        }

        if (count > 0)
                headersz += sizeof(struct register_set_hdr_v1) + 8 * count + 4;

        return image_headersz_align(headersz, image_get_bootfrom());
}

static int add_binary_header_v1(uint8_t **cur, uint8_t **next_ext,
                                struct image_cfg_element *binarye,
                                struct main_hdr_v1 *main_hdr)
{
        struct opt_hdr_v1 *hdr = (struct opt_hdr_v1 *)*cur;
        uint32_t base_addr;
        uint32_t add_args;
        uint32_t offset;
        uint32_t *args;
        size_t binhdrsz;
        int cpu_sheeva;
        struct stat s;
        int argi;
        FILE *bin;
        int ret;

        hdr->headertype = OPT_HDR_V1_BINARY_TYPE;

        bin = fopen(binarye->binary.file, "r");
        if (!bin) {
                fprintf(stderr, "Cannot open binary file %s\n",
                        binarye->binary.file);
                return -1;
        }

        if (fstat(fileno(bin), &s)) {
                fprintf(stderr, "Cannot stat binary file %s\n",
                        binarye->binary.file);
                goto err_close;
        }

        *cur += sizeof(struct opt_hdr_v1);

        args = (uint32_t *)*cur;
        *args = cpu_to_le32(binarye->binary.nargs);
        args++;
        for (argi = 0; argi < binarye->binary.nargs; argi++)
                args[argi] = cpu_to_le32(binarye->binary.args[argi]);

        *cur += (binarye->binary.nargs + 1) * sizeof(uint32_t);

        /*
         * ARM executable code inside the BIN header on platforms with Sheeva
         * CPU (A370 and AXP) must always be aligned with the 128-bit boundary.
         * In the case when this code is not position independent (e.g. ARM
         * SPL), it must be placed at fixed load and execute address.
         * This requirement can be met by inserting dummy arguments into
         * BIN header, if needed.
         */
        cpu_sheeva = image_is_cpu_sheeva();
        base_addr = cpu_sheeva ? 0x40004000 : 0x40000000;
        offset = *cur - (uint8_t *)main_hdr;
        if (binarye->binary.loadaddr)
                add_args = (binarye->binary.loadaddr - base_addr - offset) / sizeof(uint32_t);
        else if (cpu_sheeva)
                add_args = ((16 - offset % 16) % 16) / sizeof(uint32_t);
        else
                add_args = 0;
        if (add_args) {
                *(args - 1) = cpu_to_le32(binarye->binary.nargs + add_args);
                *cur += add_args * sizeof(uint32_t);
        }

        ret = fread(*cur, s.st_size, 1, bin);
        if (ret != 1) {
                fprintf(stderr,
                        "Could not read binary image %s\n",
                        binarye->binary.file);
                goto err_close;
        }

        fclose(bin);

        *cur += ALIGN(s.st_size, 4);

        *((uint32_t *)*cur) = 0x00000000;
        **next_ext = 1;
        *next_ext = *cur;

        *cur += sizeof(uint32_t);

        binhdrsz = sizeof(struct opt_hdr_v1) +
                (binarye->binary.nargs + add_args + 2) * sizeof(uint32_t) +
                ALIGN(s.st_size, 4);
        hdr->headersz_lsb = cpu_to_le16(binhdrsz & 0xFFFF);
        hdr->headersz_msb = (binhdrsz & 0xFFFF0000) >> 16;

        return 0;

err_close:
        fclose(bin);

        return -1;
}

static int export_pub_kak_hash(RSA *kak, struct secure_hdr_v1 *secure_hdr)
{
        FILE *hashf;
        int res;

        hashf = fopen("pub_kak_hash.txt", "w");
        if (!hashf) {
                fprintf(stderr, "Couldn't open hash file: '%s': %s\n",
                        "pub_kak_hash.txt", strerror(errno));
                return 1;
        }

        res = kwb_export_pubkey(kak, &secure_hdr->kak, hashf, "KAK");

        fclose(hashf);

        return res < 0 ? 1 : 0;
}

static int kwb_sign_csk_with_kak(struct image_tool_params *params,
                                 struct secure_hdr_v1 *secure_hdr, RSA *csk)
{
        RSA *kak = NULL;
        RSA *kak_pub = NULL;
        int csk_idx = image_get_csk_index();
        struct sig_v1 tmp_sig;

        if (csk_idx < 0 || csk_idx > 15) {
                fprintf(stderr, "Invalid CSK index %d\n", csk_idx);
                return 1;
        }

        if (kwb_load_kak(params, &kak) < 0)
                return 1;

        if (export_pub_kak_hash(kak, secure_hdr))
                return 1;

        if (kwb_import_pubkey(&kak_pub, &secure_hdr->kak, "KAK") < 0)
                return 1;

        if (kwb_export_pubkey(csk, &secure_hdr->csk[csk_idx], NULL, "CSK") < 0)
                return 1;

        if (kwb_sign_and_verify(kak, &secure_hdr->csk,
                                sizeof(secure_hdr->csk) +
                                sizeof(secure_hdr->csksig),
                                &tmp_sig, "CSK") < 0)
                return 1;

        if (kwb_verify(kak_pub, &secure_hdr->csk,
                       sizeof(secure_hdr->csk) +
                       sizeof(secure_hdr->csksig),
                       &tmp_sig, "CSK (2)") < 0)
                return 1;

        secure_hdr->csksig = tmp_sig;

        return 0;
}

static int add_secure_header_v1(struct image_tool_params *params, uint8_t *ptr,
                                int payloadsz, size_t headersz, uint8_t *image,
                                struct secure_hdr_v1 *secure_hdr)
{
        struct image_cfg_element *e_jtagdelay;
        struct image_cfg_element *e_boxid;
        struct image_cfg_element *e_flashid;
        RSA *csk = NULL;
        unsigned char *image_ptr;
        size_t image_size;
        struct sig_v1 tmp_sig;
        bool specialized_img = image_get_spezialized_img();

        kwb_msg("Create secure header content\n");

        e_jtagdelay = image_find_option(IMAGE_CFG_JTAG_DELAY);
        e_boxid = image_find_option(IMAGE_CFG_BOX_ID);
        e_flashid = image_find_option(IMAGE_CFG_FLASH_ID);

        if (kwb_load_csk(params, &csk) < 0)
                return 1;

        secure_hdr->headertype = OPT_HDR_V1_SECURE_TYPE;
        secure_hdr->headersz_msb = 0;
        secure_hdr->headersz_lsb = cpu_to_le16(sizeof(struct secure_hdr_v1));
        if (e_jtagdelay)
                secure_hdr->jtag_delay = e_jtagdelay->jtag_delay;
        if (e_boxid && specialized_img)
                secure_hdr->boxid = cpu_to_le32(e_boxid->boxid);
        if (e_flashid && specialized_img)
                secure_hdr->flashid = cpu_to_le32(e_flashid->flashid);

        if (kwb_sign_csk_with_kak(params, secure_hdr, csk))
                return 1;

        image_ptr = ptr + headersz;
        image_size = payloadsz - headersz;

        if (kwb_sign_and_verify(csk, image_ptr, image_size,
                                &secure_hdr->imgsig, "image") < 0)
                return 1;

        if (kwb_sign_and_verify(csk, image, headersz, &tmp_sig, "header") < 0)
                return 1;

        secure_hdr->hdrsig = tmp_sig;

        kwb_dump_fuse_cmds(secure_hdr);

        return 0;
}

static void finish_register_set_header_v1(uint8_t **cur, uint8_t **next_ext,
                                          struct register_set_hdr_v1 *register_set_hdr,
                                          int *datai, uint8_t delay)
{
        int size = sizeof(struct register_set_hdr_v1) + 8 * (*datai) + 4;

        register_set_hdr->headertype = OPT_HDR_V1_REGISTER_TYPE;
        register_set_hdr->headersz_lsb = cpu_to_le16(size & 0xFFFF);
        register_set_hdr->headersz_msb = size >> 16;
        register_set_hdr->data[*datai].last_entry.delay = delay;
        *cur += size;
        **next_ext = 1;
        *next_ext = &register_set_hdr->data[*datai].last_entry.next;
        *datai = 0;
}

static void *image_create_v1(size_t *imagesz, struct image_tool_params *params,
                             uint8_t *ptr, int payloadsz)
{
        struct image_cfg_element *e;
        struct main_hdr_v1 *main_hdr;
        struct opt_hdr_v1 *ohdr;
        struct register_set_hdr_v1 *register_set_hdr;
        struct secure_hdr_v1 *secure_hdr = NULL;
        size_t headersz;
        uint8_t *image, *cur;
        int hasext = 0;
        uint8_t *next_ext = NULL;
        int cfgi, datai;
        uint8_t delay;

        /*
         * Calculate the size of the header and the size of the
         * payload
         */
        headersz = image_headersz_v1(&hasext);
        if (headersz == 0)
                return NULL;

        image = malloc(headersz);
        if (!image) {
                fprintf(stderr, "Cannot allocate memory for image\n");
                return NULL;
        }

        memset(image, 0, headersz);

        main_hdr = (struct main_hdr_v1 *)image;
        cur = image;
        cur += sizeof(struct main_hdr_v1);
        next_ext = &main_hdr->ext;

        /* Fill the main header */
        main_hdr->blocksize    =
                cpu_to_le32(payloadsz);
        main_hdr->headersz_lsb = cpu_to_le16(headersz & 0xFFFF);
        main_hdr->headersz_msb = (headersz & 0xFFFF0000) >> 16;
        main_hdr->destaddr     = cpu_to_le32(params->addr);
        main_hdr->execaddr     = cpu_to_le32(params->ep);
        main_hdr->srcaddr      = cpu_to_le32(headersz);
        main_hdr->ext          = hasext;
        main_hdr->version      = 1;
        main_hdr->blockid      = image_get_bootfrom();

        e = image_find_option(IMAGE_CFG_NAND_BLKSZ);
        if (e)
                main_hdr->nandblocksize = e->nandblksz / (64 * 1024);
        e = image_find_option(IMAGE_CFG_NAND_PAGESZ);
        if (e)
                main_hdr->nandpagesize = cpu_to_le16(e->nandpagesz);
        e = image_find_option(IMAGE_CFG_NAND_BADBLK_LOCATION);
        if (e)
                main_hdr->nandbadblklocation = e->nandbadblklocation;
        e = image_find_option(IMAGE_CFG_BAUDRATE);
        if (e)
                main_hdr->options |= baudrate_to_option(e->baudrate);
        e = image_find_option(IMAGE_CFG_UART_PORT);
        if (e)
                main_hdr->options |= (e->uart_port & 3) << 3;
        e = image_find_option(IMAGE_CFG_UART_MPP);
        if (e)
                main_hdr->options |= (e->uart_mpp & 7) << 5;
        e = image_find_option(IMAGE_CFG_DEBUG);
        if (e)
                main_hdr->flags = e->debug ? 0x1 : 0;

        /*
         * For SATA srcaddr is specified in number of sectors starting from
         * sector 0. The main header is stored at sector number 1.
         * This expects the sector size to be 512 bytes.
         * Header size is already aligned.
         */
        if (main_hdr->blockid == IBR_HDR_SATA_ID)
                main_hdr->srcaddr = cpu_to_le32(headersz / 512 + 1);

        /*
         * For SDIO srcaddr is specified in number of sectors starting from
         * sector 0. The main header is stored at sector number 0.
         * This expects sector size to be 512 bytes.
         * Header size is already aligned.
         */
        if (main_hdr->blockid == IBR_HDR_SDIO_ID)
                main_hdr->srcaddr = cpu_to_le32(headersz / 512);

        /* For PCIe srcaddr is not used and must be set to 0xFFFFFFFF. */
        if (main_hdr->blockid == IBR_HDR_PEX_ID)
                main_hdr->srcaddr = cpu_to_le32(0xFFFFFFFF);

        if (image_get_csk_index() >= 0) {
                /*
                 * only reserve the space here; we fill the header later since
                 * we need the header to be complete to compute the signatures
                 */
                secure_hdr = (struct secure_hdr_v1 *)cur;
                cur += sizeof(struct secure_hdr_v1);
                *next_ext = 1;
                next_ext = &secure_hdr->next;
        }

        datai = 0;
        for (cfgi = 0; cfgi < cfgn; cfgi++) {
                e = &image_cfg[cfgi];
                if (e->type != IMAGE_CFG_DATA &&
                    e->type != IMAGE_CFG_DATA_DELAY &&
                    e->type != IMAGE_CFG_BINARY)
                        continue;

                if (datai == 0)
                        register_set_hdr = (struct register_set_hdr_v1 *)cur;

                /* If delay is not specified, use the smallest possible value. */
                if (e->type == IMAGE_CFG_DATA_DELAY)
                        delay = e->regdata_delay;
                else
                        delay = REGISTER_SET_HDR_OPT_DELAY_MS(0);

                /*
                 * DATA_DELAY command is the last entry in the register set
                 * header and BINARY command inserts new binary header.
                 * Therefore BINARY command requires to finish register set
                 * header if some DATA command was specified. And DATA_DELAY
                 * command automatically finish register set header even when
                 * there was no DATA command.
                 */
                if (e->type == IMAGE_CFG_DATA_DELAY ||
                    (e->type == IMAGE_CFG_BINARY && datai != 0))
                        finish_register_set_header_v1(&cur, &next_ext, register_set_hdr,
                                                      &datai, delay);

                if (e->type == IMAGE_CFG_DATA) {
                        register_set_hdr->data[datai].entry.address =
                                cpu_to_le32(e->regdata.raddr);
                        register_set_hdr->data[datai].entry.value =
                                cpu_to_le32(e->regdata.rdata);
                        datai++;
                }

                if (e->type == IMAGE_CFG_BINARY) {
                        if (add_binary_header_v1(&cur, &next_ext, e, main_hdr))
                                return NULL;
                }
        }
        if (datai != 0) {
                /* Set delay to the smallest possible value. */
                delay = REGISTER_SET_HDR_OPT_DELAY_MS(0);
                finish_register_set_header_v1(&cur, &next_ext, register_set_hdr,
                                              &datai, delay);
        }

        if (secure_hdr && add_secure_header_v1(params, ptr, payloadsz + headersz,
                                               headersz, image, secure_hdr))
                return NULL;

        *imagesz = headersz;

        /* Fill the real header size without padding into the main header */
        headersz = sizeof(*main_hdr);
        for_each_opt_hdr_v1 (ohdr, main_hdr)
                headersz += opt_hdr_v1_size(ohdr);
        main_hdr->headersz_lsb = cpu_to_le16(headersz & 0xFFFF);
        main_hdr->headersz_msb = (headersz & 0xFFFF0000) >> 16;

        /* Calculate and set the header checksum */
        main_hdr->checksum = image_checksum8(main_hdr, headersz);

        return image;
}

static int recognize_keyword(char *keyword)
{
        int kw_id;

        for (kw_id = 1; kw_id < IMAGE_CFG_COUNT; ++kw_id)
                if (!strcmp(keyword, id_strs[kw_id]))
                        return kw_id;

        return 0;
}

static int image_create_config_parse_oneline(char *line,
                                             struct image_cfg_element *el)
{
        char *keyword, *saveptr, *value1, *value2;
        char delimiters[] = " \t";
        int keyword_id, ret, argi;
        char *unknown_msg = "Ignoring unknown line '%s'\n";

        keyword = strtok_r(line, delimiters, &saveptr);
        keyword_id = recognize_keyword(keyword);

        if (!keyword_id) {
                fprintf(stderr, unknown_msg, line);
                return 0;
        }

        el->type = keyword_id;

        value1 = strtok_r(NULL, delimiters, &saveptr);

        if (!value1) {
                fprintf(stderr, "Parameter missing in line '%s'\n", line);
                return -1;
        }

        switch (keyword_id) {
        case IMAGE_CFG_VERSION:
                el->version = atoi(value1);
                break;
        case IMAGE_CFG_CPU:
                if (strcmp(value1, "FEROCEON") == 0)
                        el->cpu_sheeva = 0;
                else if (strcmp(value1, "SHEEVA") == 0)
                        el->cpu_sheeva = 1;
                else if (strcmp(value1, "A9") == 0)
                        el->cpu_sheeva = 0;
                else {
                        fprintf(stderr, "Invalid CPU %s\n", value1);
                        return -1;
                }
                break;
        case IMAGE_CFG_BOOT_FROM:
                ret = image_boot_mode_id(value1);

                if (ret < 0) {
                        fprintf(stderr, "Invalid boot media '%s'\n", value1);
                        return -1;
                }
                el->bootfrom = ret;
                break;
        case IMAGE_CFG_NAND_BLKSZ:
                el->nandblksz = strtoul(value1, NULL, 16);
                break;
        case IMAGE_CFG_NAND_BADBLK_LOCATION:
                el->nandbadblklocation = strtoul(value1, NULL, 16);
                break;
        case IMAGE_CFG_NAND_ECC_MODE:
                ret = image_nand_ecc_mode_id(value1);

                if (ret < 0) {
                        fprintf(stderr, "Invalid NAND ECC mode '%s'\n", value1);
                        return -1;
                }
                el->nandeccmode = ret;
                break;
        case IMAGE_CFG_NAND_PAGESZ:
                el->nandpagesz = strtoul(value1, NULL, 16);
                break;
        case IMAGE_CFG_BINARY:
                argi = 0;

                el->binary.file = strdup(value1);
                while (1) {
                        char *value = strtok_r(NULL, delimiters, &saveptr);
                        char *endptr;

                        if (!value)
                                break;

                        if (!strcmp(value, "LOAD_ADDRESS")) {
                                value = strtok_r(NULL, delimiters, &saveptr);
                                if (!value) {
                                        fprintf(stderr,
                                                "Missing address argument for BINARY LOAD_ADDRESS\n");
                                        return -1;
                                }
                                el->binary.loadaddr = strtoul(value, &endptr, 16);
                                if (*endptr) {
                                        fprintf(stderr,
                                                "Invalid argument '%s' for BINARY LOAD_ADDRESS\n",
                                                value);
                                        return -1;
                                }
                                value = strtok_r(NULL, delimiters, &saveptr);
                                if (value) {
                                        fprintf(stderr,
                                                "Unexpected argument '%s' after BINARY LOAD_ADDRESS\n",
                                                value);
                                        return -1;
                                }
                                break;
                        }

                        el->binary.args[argi] = strtoul(value, &endptr, 16);
                        if (*endptr) {
                                fprintf(stderr, "Invalid argument '%s' for BINARY\n", value);
                                return -1;
                        }
                        argi++;
                        if (argi >= BINARY_MAX_ARGS) {
                                fprintf(stderr,
                                        "Too many arguments for BINARY\n");
                                return -1;
                        }
                }
                el->binary.nargs = argi;
                break;
        case IMAGE_CFG_DATA:
                value2 = strtok_r(NULL, delimiters, &saveptr);

                if (!value1 || !value2) {
                        fprintf(stderr,
                                "Invalid number of arguments for DATA\n");
                        return -1;
                }

                el->regdata.raddr = strtoul(value1, NULL, 16);
                el->regdata.rdata = strtoul(value2, NULL, 16);
                break;
        case IMAGE_CFG_DATA_DELAY:
                if (!strcmp(value1, "SDRAM_SETUP"))
                        el->regdata_delay = REGISTER_SET_HDR_OPT_DELAY_SDRAM_SETUP;
                else
                        el->regdata_delay = REGISTER_SET_HDR_OPT_DELAY_MS(strtoul(value1, NULL, 10));
                if (el->regdata_delay > 255) {
                        fprintf(stderr, "Maximal DATA_DELAY is 255\n");
                        return -1;
                }
                break;
        case IMAGE_CFG_BAUDRATE:
                el->baudrate = strtoul(value1, NULL, 10);
                break;
        case IMAGE_CFG_UART_PORT:
                el->uart_port = strtoul(value1, NULL, 16);
                break;
        case IMAGE_CFG_UART_MPP:
                el->uart_mpp = strtoul(value1, NULL, 16);
                break;
        case IMAGE_CFG_DEBUG:
                el->debug = strtoul(value1, NULL, 10);
                break;
        case IMAGE_CFG_KAK:
                el->key_name = strdup(value1);
                break;
        case IMAGE_CFG_CSK:
                el->key_name = strdup(value1);
                break;
        case IMAGE_CFG_CSK_INDEX:
                el->csk_idx = strtol(value1, NULL, 0);
                break;
        case IMAGE_CFG_JTAG_DELAY:
                el->jtag_delay = strtoul(value1, NULL, 0);
                break;
        case IMAGE_CFG_BOX_ID:
                el->boxid = strtoul(value1, NULL, 0);
                break;
        case IMAGE_CFG_FLASH_ID:
                el->flashid = strtoul(value1, NULL, 0);
                break;
        case IMAGE_CFG_SEC_SPECIALIZED_IMG:
                el->sec_specialized_img = true;
                break;
        case IMAGE_CFG_SEC_COMMON_IMG:
                el->sec_specialized_img = false;
                break;
        case IMAGE_CFG_SEC_BOOT_DEV:
                el->sec_boot_dev = strtoul(value1, NULL, 0);
                break;
        case IMAGE_CFG_SEC_FUSE_DUMP:
                el->name = strdup(value1);
                break;
        default:
                fprintf(stderr, unknown_msg, line);
        }

        return 0;
}

/*
 * Parse the configuration file 'fcfg' into the array of configuration
 * elements 'image_cfg', and return the number of configuration
 * elements in 'cfgn'.
 */
static int image_create_config_parse(FILE *fcfg)
{
        int ret;
        int cfgi = 0;

        /* Parse the configuration file */
        while (!feof(fcfg)) {
                char *line;
                char buf[256];

                /* Read the current line */
                memset(buf, 0, sizeof(buf));
                line = fgets(buf, sizeof(buf), fcfg);
                if (!line)
                        break;

                /* Ignore useless lines */
                if (line[0] == '\n' || line[0] == '#')
                        continue;

                /* Strip final newline */
                if (line[strlen(line) - 1] == '\n')
                        line[strlen(line) - 1] = 0;

                /* Parse the current line */
                ret = image_create_config_parse_oneline(line,
                                                        &image_cfg[cfgi]);
                if (ret)
                        return ret;

                cfgi++;

                if (cfgi >= IMAGE_CFG_ELEMENT_MAX) {
                        fprintf(stderr,
                                "Too many configuration elements in .cfg file\n");
                        return -1;
                }
        }

        cfgn = cfgi;
        return 0;
}

static int image_get_version(void)
{
        struct image_cfg_element *e;

        e = image_find_option(IMAGE_CFG_VERSION);
        if (!e)
                return -1;

        return e->version;
}

static void kwbimage_set_header(void *ptr, struct stat *sbuf, int ifd,
                                struct image_tool_params *params)
{
        FILE *fcfg;
        void *image = NULL;
        int version;
        size_t headersz = 0;
        size_t datasz;
        uint32_t checksum;
        struct stat s;
        int ret;

        /*
         * Do not use sbuf->st_size as it contains size with padding.
         * We need original image data size, so stat original file.
         */
        if (stat(params->datafile, &s)) {
                fprintf(stderr, "Could not stat data file %s: %s\n",
                        params->datafile, strerror(errno));
                exit(EXIT_FAILURE);
        }
        datasz = ALIGN(s.st_size, 4);

        fcfg = fopen(params->imagename, "r");
        if (!fcfg) {
                fprintf(stderr, "Could not open input file %s\n",
                        params->imagename);
                exit(EXIT_FAILURE);
        }

        image_cfg = malloc(IMAGE_CFG_ELEMENT_MAX *
                           sizeof(struct image_cfg_element));
        if (!image_cfg) {
                fprintf(stderr, "Cannot allocate memory\n");
                fclose(fcfg);
                exit(EXIT_FAILURE);
        }

        memset(image_cfg, 0,
               IMAGE_CFG_ELEMENT_MAX * sizeof(struct image_cfg_element));
        rewind(fcfg);

        ret = image_create_config_parse(fcfg);
        fclose(fcfg);
        if (ret) {
                free(image_cfg);
                exit(EXIT_FAILURE);
        }

        version = image_get_version();
        switch (version) {
                /*
                 * Fallback to version 0 if no version is provided in the
                 * cfg file
                 */
        case -1:
        case 0:
                image = image_create_v0(&headersz, params, datasz + 4);
                break;

        case 1:
                image = image_create_v1(&headersz, params, ptr, datasz + 4);
                break;

        default:
                fprintf(stderr, "Unsupported version %d\n", version);
                free(image_cfg);
                exit(EXIT_FAILURE);
        }

        if (!image) {
                fprintf(stderr, "Could not create image\n");
                free(image_cfg);
                exit(EXIT_FAILURE);
        }

        free(image_cfg);

        /* Build and add image data checksum */
        checksum = cpu_to_le32(image_checksum32((uint8_t *)ptr + headersz,
                                                datasz));
        memcpy((uint8_t *)ptr + headersz + datasz, &checksum, sizeof(uint32_t));

        /* Finally copy the header into the image area */
        memcpy(ptr, image, headersz);

        free(image);
}

static void kwbimage_print_header(const void *ptr)
{
        struct main_hdr_v0 *mhdr = (struct main_hdr_v0 *)ptr;
        struct bin_hdr_v0 *bhdr;
        struct opt_hdr_v1 *ohdr;

        printf("Image Type:   MVEBU Boot from %s Image\n",
               image_boot_mode_name(mhdr->blockid));
        printf("Image version:%d\n", kwbimage_version(ptr));

        for_each_opt_hdr_v1 (ohdr, mhdr) {
                if (ohdr->headertype == OPT_HDR_V1_BINARY_TYPE) {
                        printf("BIN Img Size: ");
                        genimg_print_size(opt_hdr_v1_size(ohdr) - 12 -
                                          4 * ohdr->data[0]);
                        printf("BIN Img Offs: %08x\n",
                                (unsigned)((uint8_t *)ohdr - (uint8_t *)mhdr) +
                                8 + 4 * ohdr->data[0]);
                }
        }

        for_each_bin_hdr_v0(bhdr, mhdr) {
                printf("BIN Img Size: ");
                genimg_print_size(le32_to_cpu(bhdr->size));
                printf("BIN Img Addr: %08x\n", le32_to_cpu(bhdr->destaddr));
                printf("BIN Img Entr: %08x\n", le32_to_cpu(bhdr->execaddr));
        }

        printf("Data Size:    ");
        genimg_print_size(mhdr->blocksize - sizeof(uint32_t));
        printf("Load Address: %08x\n", mhdr->destaddr);
        printf("Entry Point:  %08x\n", mhdr->execaddr);
}

static int kwbimage_check_image_types(uint8_t type)
{
        if (type == IH_TYPE_KWBIMAGE)
                return EXIT_SUCCESS;

        return EXIT_FAILURE;
}

static int kwbimage_verify_header(unsigned char *ptr, int image_size,
                                  struct image_tool_params *params)
{
        size_t header_size = kwbheader_size(ptr);
        uint8_t blockid;
        uint32_t offset;
        uint32_t size;
        uint8_t csum;

        if (header_size > 192*1024)
                return -FDT_ERR_BADSTRUCTURE;

        if (header_size > image_size)
                return -FDT_ERR_BADSTRUCTURE;

        if (!main_hdr_checksum_ok(ptr))
                return -FDT_ERR_BADSTRUCTURE;

        /* Only version 0 extended header has checksum */
        if (kwbimage_version(ptr) == 0) {
                struct main_hdr_v0 *mhdr = (struct main_hdr_v0 *)ptr;
                struct ext_hdr_v0 *ext_hdr;
                struct bin_hdr_v0 *bhdr;

                for_each_ext_hdr_v0(ext_hdr, ptr) {
                        csum = image_checksum8(ext_hdr, sizeof(*ext_hdr) - 1);
                        if (csum != ext_hdr->checksum)
                                return -FDT_ERR_BADSTRUCTURE;
                }

                for_each_bin_hdr_v0(bhdr, ptr) {
                        csum = image_checksum8(bhdr, (uint8_t *)&bhdr->checksum - (uint8_t *)bhdr - 1);
                        if (csum != bhdr->checksum)
                                return -FDT_ERR_BADSTRUCTURE;

                        if (bhdr->offset > sizeof(*bhdr) || bhdr->offset % 4 != 0)
                                return -FDT_ERR_BADSTRUCTURE;

                        if (bhdr->offset + bhdr->size + 4 > sizeof(*bhdr) || bhdr->size % 4 != 0)
                                return -FDT_ERR_BADSTRUCTURE;

                        if (image_checksum32((uint8_t *)bhdr + bhdr->offset, bhdr->size) !=
                            *(uint32_t *)((uint8_t *)bhdr + bhdr->offset + bhdr->size))
                                return -FDT_ERR_BADSTRUCTURE;
                }

                blockid = mhdr->blockid;
                offset = le32_to_cpu(mhdr->srcaddr);
                size = le32_to_cpu(mhdr->blocksize);
        } else if (kwbimage_version(ptr) == 1) {
                struct main_hdr_v1 *mhdr = (struct main_hdr_v1 *)ptr;
                const uint8_t *mhdr_end;
                struct opt_hdr_v1 *ohdr;

                mhdr_end = (uint8_t *)mhdr + header_size;
                for_each_opt_hdr_v1 (ohdr, ptr)
                        if (!opt_hdr_v1_valid_size(ohdr, mhdr_end))
                                return -FDT_ERR_BADSTRUCTURE;

                blockid = mhdr->blockid;
                offset = le32_to_cpu(mhdr->srcaddr);
                size = le32_to_cpu(mhdr->blocksize);
        } else {
                return -FDT_ERR_BADSTRUCTURE;
        }

        /*
         * For SATA srcaddr is specified in number of sectors.
         * The main header is must be stored at sector number 1.
         * This expects that sector size is 512 bytes and recalculates
         * data offset to bytes relative to the main header.
         */
        if (blockid == IBR_HDR_SATA_ID) {
                if (offset < 1)
                        return -FDT_ERR_BADSTRUCTURE;
                offset -= 1;
                offset *= 512;
        }

        /*
         * For SDIO srcaddr is specified in number of sectors.
         * This expects that sector size is 512 bytes and recalculates
         * data offset to bytes.
         */
        if (blockid == IBR_HDR_SDIO_ID)
                offset *= 512;

        /*
         * For PCIe srcaddr is always set to 0xFFFFFFFF.
         * This expects that data starts after all headers.
         */
        if (blockid == IBR_HDR_PEX_ID && offset == 0xFFFFFFFF)
                offset = header_size;

        if (offset > image_size || offset % 4 != 0)
                return -FDT_ERR_BADSTRUCTURE;

        if (size < 4 || offset + size > image_size || size % 4 != 0)
                return -FDT_ERR_BADSTRUCTURE;

        if (image_checksum32(ptr + offset, size - 4) !=
            *(uint32_t *)(ptr + offset + size - 4))
                return -FDT_ERR_BADSTRUCTURE;

        return 0;
}

static int kwbimage_generate(struct image_tool_params *params,
                             struct image_type_params *tparams)
{
        FILE *fcfg;
        struct stat s;
        int alloc_len;
        int bootfrom;
        int version;
        void *hdr;
        int ret;

        fcfg = fopen(params->imagename, "r");
        if (!fcfg) {
                fprintf(stderr, "Could not open input file %s\n",
                        params->imagename);
                exit(EXIT_FAILURE);
        }

        if (stat(params->datafile, &s)) {
                fprintf(stderr, "Could not stat data file %s: %s\n",
                        params->datafile, strerror(errno));
                exit(EXIT_FAILURE);
        }

        image_cfg = malloc(IMAGE_CFG_ELEMENT_MAX *
                           sizeof(struct image_cfg_element));
        if (!image_cfg) {
                fprintf(stderr, "Cannot allocate memory\n");
                fclose(fcfg);
                exit(EXIT_FAILURE);
        }

        memset(image_cfg, 0,
               IMAGE_CFG_ELEMENT_MAX * sizeof(struct image_cfg_element));
        rewind(fcfg);

        ret = image_create_config_parse(fcfg);
        fclose(fcfg);
        if (ret) {
                free(image_cfg);
                exit(EXIT_FAILURE);
        }

        bootfrom = image_get_bootfrom();
        version = image_get_version();
        switch (version) {
                /*
                 * Fallback to version 0 if no version is provided in the
                 * cfg file
                 */
        case -1:
        case 0:
                alloc_len = image_headersz_v0(NULL);
                break;

        case 1:
                alloc_len = image_headersz_v1(NULL);
                if (!alloc_len) {
                        free(image_cfg);
                        exit(EXIT_FAILURE);
                }
                if (alloc_len > 192*1024) {
                        fprintf(stderr, "Header is too big (%u bytes), maximal kwbimage header size is %u bytes\n", alloc_len, 192*1024);
                        free(image_cfg);
                        exit(EXIT_FAILURE);
                }
                break;

        default:
                fprintf(stderr, "Unsupported version %d\n", version);
                free(image_cfg);
                exit(EXIT_FAILURE);
        }

        free(image_cfg);

        hdr = malloc(alloc_len);
        if (!hdr) {
                fprintf(stderr, "%s: malloc return failure: %s\n",
                        params->cmdname, strerror(errno));
                exit(EXIT_FAILURE);
        }

        memset(hdr, 0, alloc_len);
        tparams->header_size = alloc_len;
        tparams->hdr = hdr;

        /*
         * The resulting image needs to be 4-byte aligned. At least
         * the Marvell hdrparser tool complains if its unaligned.
         * After the image data is stored 4-byte checksum.
         * Final UART image must be aligned to 128 bytes.
         * Final SPI and NAND images must be aligned to 256 bytes.
         * Final SATA and SDIO images must be aligned to 512 bytes.
         */
        if (bootfrom == IBR_HDR_SPI_ID || bootfrom == IBR_HDR_NAND_ID)
                return 4 + (256 - (alloc_len + s.st_size + 4) % 256) % 256;
        else if (bootfrom == IBR_HDR_SATA_ID || bootfrom == IBR_HDR_SDIO_ID)
                return 4 + (512 - (alloc_len + s.st_size + 4) % 512) % 512;
        else if (bootfrom == IBR_HDR_UART_ID)
                return 4 + (128 - (alloc_len + s.st_size + 4) % 128) % 128;
        else
                return 4 + (4 - s.st_size % 4) % 4;
}

static int kwbimage_generate_config(void *ptr, struct image_tool_params *params)
{
        struct main_hdr_v0 *mhdr0 = (struct main_hdr_v0 *)ptr;
        struct main_hdr_v1 *mhdr = (struct main_hdr_v1 *)ptr;
        size_t header_size = kwbheader_size(ptr);
        struct register_set_hdr_v1 *regset_hdr;
        struct ext_hdr_v0_reg *regdata;
        struct ext_hdr_v0 *ehdr0;
        struct bin_hdr_v0 *bhdr0;
        struct opt_hdr_v1 *ohdr;
        int params_count;
        unsigned offset;
        int is_v0_ext;
        int cur_idx;
        int version;
        FILE *f;
        int i;

        f = fopen(params->outfile, "w");
        if (!f) {
                fprintf(stderr, "Can't open \"%s\": %s\n", params->outfile, strerror(errno));
                return -1;
        }

        version = kwbimage_version(ptr);

        is_v0_ext = 0;
        if (version == 0) {
                if (mhdr0->ext > 1 || mhdr0->bin ||
                    ((ehdr0 = ext_hdr_v0_first(ptr)) &&
                     (ehdr0->match_addr || ehdr0->match_mask || ehdr0->match_value)))
                        is_v0_ext = 1;
        }

        if (version != 0)
                fprintf(f, "VERSION %d\n", version);

        fprintf(f, "BOOT_FROM %s\n", image_boot_mode_name(mhdr->blockid) ?: "<unknown>");

        if (version == 0 && mhdr->blockid == IBR_HDR_NAND_ID)
                fprintf(f, "NAND_ECC_MODE %s\n", image_nand_ecc_mode_name(mhdr0->nandeccmode));

        if (mhdr->blockid == IBR_HDR_NAND_ID)
                fprintf(f, "NAND_PAGE_SIZE 0x%x\n", (unsigned)mhdr->nandpagesize);

        if (version != 0 && mhdr->blockid == IBR_HDR_NAND_ID)
                fprintf(f, "NAND_BLKSZ 0x%x\n", (unsigned)mhdr->nandblocksize);

        if (mhdr->blockid == IBR_HDR_NAND_ID && (mhdr->nandbadblklocation != 0 || is_v0_ext))
                fprintf(f, "NAND_BADBLK_LOCATION 0x%x\n", (unsigned)mhdr->nandbadblklocation);

        if (version == 0 && mhdr->blockid == IBR_HDR_SATA_ID)
                fprintf(f, "SATA_PIO_MODE %u\n", (unsigned)mhdr0->satapiomode);

        /*
         * Addresses and sizes which are specified by mkimage command line
         * arguments and not in kwbimage config file
         */

        if (version != 0)
                fprintf(f, "#HEADER_SIZE 0x%x\n",
                        ((unsigned)mhdr->headersz_msb << 8) | le16_to_cpu(mhdr->headersz_lsb));

        fprintf(f, "#SRC_ADDRESS 0x%x\n", le32_to_cpu(mhdr->srcaddr));
        fprintf(f, "#BLOCK_SIZE 0x%x\n", le32_to_cpu(mhdr->blocksize));
        fprintf(f, "#DEST_ADDRESS 0x%08x\n", le32_to_cpu(mhdr->destaddr));
        fprintf(f, "#EXEC_ADDRESS 0x%08x\n", le32_to_cpu(mhdr->execaddr));

        if (version != 0) {
                if (options_to_baudrate(mhdr->options))
                        fprintf(f, "BAUDRATE %u\n", options_to_baudrate(mhdr->options));
                if (options_to_baudrate(mhdr->options) ||
                    ((mhdr->options >> 3) & 0x3) || ((mhdr->options >> 5) & 0x7)) {
                        fprintf(f, "UART_PORT %u\n", (unsigned)((mhdr->options >> 3) & 0x3));
                        fprintf(f, "UART_MPP 0x%x\n", (unsigned)((mhdr->options >> 5) & 0x7));
                }
                if (mhdr->flags & 0x1)
                        fprintf(f, "DEBUG 1\n");
        }

        cur_idx = 1;
        for_each_opt_hdr_v1(ohdr, ptr) {
                if (ohdr->headertype == OPT_HDR_V1_SECURE_TYPE) {
                        fprintf(f, "#SECURE_HEADER\n");
                } else if (ohdr->headertype == OPT_HDR_V1_BINARY_TYPE) {
                        fprintf(f, "BINARY binary%d.bin", cur_idx);
                        for (i = 0; i < ohdr->data[0]; i++)
                                fprintf(f, " 0x%x", le32_to_cpu(((uint32_t *)ohdr->data)[i + 1]));
                        offset = (unsigned)((uint8_t *)ohdr - (uint8_t *)mhdr) + 8 + 4 * ohdr->data[0];
                        fprintf(f, " LOAD_ADDRESS 0x%08x\n", 0x40000000 + offset);
                        fprintf(f, " # for CPU SHEEVA: LOAD_ADDRESS 0x%08x\n", 0x40004000 + offset);
                        cur_idx++;
                } else if (ohdr->headertype == OPT_HDR_V1_REGISTER_TYPE) {
                        regset_hdr = (struct register_set_hdr_v1 *)ohdr;
                        for (i = 0;
                             i < opt_hdr_v1_size(ohdr) - sizeof(struct opt_hdr_v1) -
                                 sizeof(regset_hdr->data[0].last_entry);
                             i++)
                                fprintf(f, "DATA 0x%08x 0x%08x\n",
                                        le32_to_cpu(regset_hdr->data[i].entry.address),
                                        le32_to_cpu(regset_hdr->data[i].entry.value));
                        if (opt_hdr_v1_size(ohdr) - sizeof(struct opt_hdr_v1) >=
                            sizeof(regset_hdr->data[0].last_entry)) {
                                if (regset_hdr->data[0].last_entry.delay)
                                        fprintf(f, "DATA_DELAY %u\n",
                                                (unsigned)regset_hdr->data[0].last_entry.delay);
                                else
                                        fprintf(f, "DATA_DELAY SDRAM_SETUP\n");
                        }
                }
        }

        if (version == 0 && !is_v0_ext && le16_to_cpu(mhdr0->ddrinitdelay))
                fprintf(f, "DDR_INIT_DELAY %u\n", (unsigned)le16_to_cpu(mhdr0->ddrinitdelay));

        for_each_ext_hdr_v0(ehdr0, ptr) {
                if (is_v0_ext) {
                        fprintf(f, "\nMATCH ADDRESS 0x%08x MASK 0x%08x VALUE 0x%08x\n",
                                le32_to_cpu(ehdr0->match_addr),
                                le32_to_cpu(ehdr0->match_mask),
                                le32_to_cpu(ehdr0->match_value));
                        if (ehdr0->rsvd1[0] || ehdr0->rsvd1[1] || ehdr0->rsvd1[2] ||
                            ehdr0->rsvd1[3] || ehdr0->rsvd1[4] || ehdr0->rsvd1[5] ||
                            ehdr0->rsvd1[6] || ehdr0->rsvd1[7])
                                fprintf(f, "#DDR_RSVD1 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n",
                                        ehdr0->rsvd1[0], ehdr0->rsvd1[1], ehdr0->rsvd1[2],
                                        ehdr0->rsvd1[3], ehdr0->rsvd1[4], ehdr0->rsvd1[5],
                                        ehdr0->rsvd1[6], ehdr0->rsvd1[7]);
                        if (ehdr0->rsvd2[0] || ehdr0->rsvd2[1] || ehdr0->rsvd2[2] ||
                            ehdr0->rsvd2[3] || ehdr0->rsvd2[4] || ehdr0->rsvd2[5] ||
                            ehdr0->rsvd2[6])
                                fprintf(f, "#DDR_RSVD2 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n",
                                        ehdr0->rsvd2[0], ehdr0->rsvd2[1], ehdr0->rsvd2[2],
                                        ehdr0->rsvd2[3], ehdr0->rsvd2[4], ehdr0->rsvd2[5],
                                        ehdr0->rsvd2[6]);
                        if (ehdr0->ddrwritetype)
                                fprintf(f, "DDR_WRITE_TYPE %u\n", (unsigned)ehdr0->ddrwritetype);
                        if (ehdr0->ddrresetmpp)
                                fprintf(f, "DDR_RESET_MPP 0x%x\n", (unsigned)ehdr0->ddrresetmpp);
                        if (ehdr0->ddrclkenmpp)
                                fprintf(f, "DDR_CLKEN_MPP 0x%x\n", (unsigned)ehdr0->ddrclkenmpp);
                        if (ehdr0->ddrinitdelay)
                                fprintf(f, "DDR_INIT_DELAY %u\n", (unsigned)ehdr0->ddrinitdelay);
                }

                if (ehdr0->offset) {
                        for (regdata = (struct ext_hdr_v0_reg *)((uint8_t *)ptr + ehdr0->offset);
                             (uint8_t *)regdata < (uint8_t *)ptr + header_size &&
                             (regdata->raddr || regdata->rdata);
                             regdata++)
                                fprintf(f, "DATA 0x%08x 0x%08x\n", le32_to_cpu(regdata->raddr),
                                        le32_to_cpu(regdata->rdata));
                        if ((uint8_t *)regdata != (uint8_t *)ptr + ehdr0->offset)
                                fprintf(f, "DATA 0x0 0x0\n");
                }

                if (le32_to_cpu(ehdr0->enddelay))
                        fprintf(f, "DATA_DELAY %u\n", le32_to_cpu(ehdr0->enddelay));
                else if (is_v0_ext)
                        fprintf(f, "DATA_DELAY SDRAM_SETUP\n");
        }

        cur_idx = 1;
        for_each_bin_hdr_v0(bhdr0, ptr) {
                fprintf(f, "\nMATCH ADDRESS 0x%08x MASK 0x%08x VALUE 0x%08x\n",
                        le32_to_cpu(bhdr0->match_addr),
                        le32_to_cpu(bhdr0->match_mask),
                        le32_to_cpu(bhdr0->match_value));

                fprintf(f, "BINARY binary%d.bin", cur_idx);
                params_count = fls4(bhdr0->params_flags & 0xF);
                for (i = 0; i < params_count; i++)
                        fprintf(f, " 0x%x", (bhdr0->params[i] & (1 << i)) ? bhdr0->params[i] : 0);
                fprintf(f, " LOAD_ADDRESS 0x%08x", le32_to_cpu(bhdr0->destaddr));
                fprintf(f, " EXEC_ADDRESS 0x%08x", le32_to_cpu(bhdr0->execaddr));
                fprintf(f, "\n");

                fprintf(f, "#BINARY_OFFSET 0x%x\n", le32_to_cpu(bhdr0->offset));
                fprintf(f, "#BINARY_SIZE 0x%x\n", le32_to_cpu(bhdr0->size));

                if (bhdr0->rsvd1)
                        fprintf(f, "#BINARY_RSVD1 0x%x\n", (unsigned)bhdr0->rsvd1);
                if (bhdr0->rsvd2)
                        fprintf(f, "#BINARY_RSVD2 0x%x\n", (unsigned)bhdr0->rsvd2);

                cur_idx++;
        }

        /* Undocumented reserved fields */

        if (version == 0 && (mhdr0->rsvd1[0] || mhdr0->rsvd1[1] || mhdr0->rsvd1[2]))
                fprintf(f, "#RSVD1 0x%x 0x%x 0x%x\n", (unsigned)mhdr0->rsvd1[0],
                        (unsigned)mhdr0->rsvd1[1], (unsigned)mhdr0->rsvd1[2]);

        if (version == 0 && le16_to_cpu(mhdr0->rsvd2))
                fprintf(f, "#RSVD2 0x%x\n", (unsigned)le16_to_cpu(mhdr0->rsvd2));

        if (version != 0 && mhdr->reserved4)
                fprintf(f, "#RESERVED4 0x%x\n", (unsigned)mhdr->reserved4);

        if (version != 0 && mhdr->reserved5)
                fprintf(f, "#RESERVED5 0x%x\n", (unsigned)le16_to_cpu(mhdr->reserved5));

        fclose(f);

        return 0;
}

static int kwbimage_extract_subimage(void *ptr, struct image_tool_params *params)
{
        struct main_hdr_v1 *mhdr = (struct main_hdr_v1 *)ptr;
        size_t header_size = kwbheader_size(ptr);
        struct bin_hdr_v0 *bhdr;
        struct opt_hdr_v1 *ohdr;
        int idx = params->pflag;
        int cur_idx;
        uint32_t offset;
        ulong image;
        ulong size;

        /* Generate kwbimage config file when '-p -1' is specified */
        if (idx == -1)
                return kwbimage_generate_config(ptr, params);

        image = 0;
        size = 0;

        if (idx == 0) {
                /* Extract data image when -p is not specified or when '-p 0' is specified */
                offset = le32_to_cpu(mhdr->srcaddr);

                if (mhdr->blockid == IBR_HDR_SATA_ID) {
                        offset -= 1;
                        offset *= 512;
                }

                if (mhdr->blockid == IBR_HDR_SDIO_ID)
                        offset *= 512;

                if (mhdr->blockid == IBR_HDR_PEX_ID && offset == 0xFFFFFFFF)
                        offset = header_size;

                image = (ulong)((uint8_t *)ptr + offset);
                size = le32_to_cpu(mhdr->blocksize) - 4;
        } else {
                /* Extract N-th binary header executabe image when other '-p N' is specified */
                cur_idx = 1;
                for_each_opt_hdr_v1(ohdr, ptr) {
                        if (ohdr->headertype != OPT_HDR_V1_BINARY_TYPE)
                                continue;

                        if (idx == cur_idx) {
                                image = (ulong)&ohdr->data[4 + 4 * ohdr->data[0]];
                                size = opt_hdr_v1_size(ohdr) - 12 - 4 * ohdr->data[0];
                                break;
                        }

                        ++cur_idx;
                }
                for_each_bin_hdr_v0(bhdr, ptr) {
                        if (idx == cur_idx) {
                                image = (ulong)bhdr + bhdr->offset;
                                size = bhdr->size;
                                break;
                        }
                        ++cur_idx;
                }

                if (!image) {
                        fprintf(stderr, "Argument -p %d is invalid\n", idx);
                        fprintf(stderr, "Available subimages:\n");
                        fprintf(stderr, " -p -1  - kwbimage config file\n");
                        fprintf(stderr, " -p 0   - data image\n");
                        if (cur_idx - 1 > 0)
                                fprintf(stderr, " -p N   - Nth binary header image (totally: %d)\n",
                                        cur_idx - 1);
                        return -1;
                }
        }

        return imagetool_save_subimage(params->outfile, image, size);
}

/*
 * Report Error if xflag is set in addition to default
 */
static int kwbimage_check_params(struct image_tool_params *params)
{
        if (!params->lflag && !params->iflag && !params->pflag &&
            (!params->imagename || !strlen(params->imagename))) {
                char *msg = "Configuration file for kwbimage creation omitted";

                fprintf(stderr, "Error:%s - %s\n", params->cmdname, msg);
                return 1;
        }

        return (params->dflag && (params->fflag || params->lflag)) ||
                (params->fflag && (params->dflag || params->lflag)) ||
                (params->lflag && (params->dflag || params->fflag)) ||
                (params->xflag);
}

/*
 * kwbimage type parameters definition
 */
U_BOOT_IMAGE_TYPE(
        kwbimage,
        "Marvell MVEBU Boot Image support",
        0,
        NULL,
        kwbimage_check_params,
        kwbimage_verify_header,
        kwbimage_print_header,
        kwbimage_set_header,
        kwbimage_extract_subimage,
        kwbimage_check_image_types,
        NULL,
        kwbimage_generate
);