X-Git-Url: http://git.ipfire.org/?a=blobdiff_plain;f=common%2Fhash.c;h=cf4d70f852c6aa9fcfe03be45cda3090864f1ada;hb=24acb83d8f04e9a49f161c07d38da50c70e9f16d;hp=d154d029e9c32466979bdc93116b70778402bb78;hpb=7f641d53bbb3a426a3bfb132d8346153e86a9d08;p=people%2Fms%2Fu-boot.git diff --git a/common/hash.c b/common/hash.c index d154d029e9..cf4d70f852 100644 --- a/common/hash.c +++ b/common/hash.c @@ -14,9 +14,10 @@ #include #include #include +#include #include #include -#include +#include #else #include "mkimage.h" #include @@ -29,7 +30,7 @@ #include #include -#ifdef CONFIG_SHA1 +#if defined(CONFIG_SHA1) && !defined(CONFIG_SHA_PROG_HW_ACCEL) static int hash_init_sha1(struct hash_algo *algo, void **ctxp) { sha1_context *ctx = malloc(sizeof(sha1_context)); @@ -57,7 +58,7 @@ static int hash_finish_sha1(struct hash_algo *algo, void *ctx, void *dest_buf, } #endif -#ifdef CONFIG_SHA256 +#if defined(CONFIG_SHA256) && !defined(CONFIG_SHA_PROG_HW_ACCEL) static int hash_init_sha256(struct hash_algo *algo, void **ctxp) { sha256_context *ctx = malloc(sizeof(sha256_context)); @@ -112,71 +113,67 @@ static int hash_finish_crc32(struct hash_algo *algo, void *ctx, void *dest_buf, } /* - * These are the hash algorithms we support. Chips which support accelerated - * crypto could perhaps add named version of these algorithms here. Note that - * algorithm names must be in lower case. + * These are the hash algorithms we support. If we have hardware acceleration + * is enable we will use that, otherwise a software version of the algorithm. + * Note that algorithm names must be in lower case. */ static struct hash_algo hash_algo[] = { - /* - * CONFIG_SHA_HW_ACCEL is defined if hardware acceleration is - * available. - */ -#ifdef CONFIG_SHA_HW_ACCEL - { - "sha1", - SHA1_SUM_LEN, - hw_sha1, - CHUNKSZ_SHA1, - }, { - "sha256", - SHA256_SUM_LEN, - hw_sha256, - CHUNKSZ_SHA256, - }, -#endif #ifdef CONFIG_SHA1 { - "sha1", - SHA1_SUM_LEN, - sha1_csum_wd, - CHUNKSZ_SHA1, - hash_init_sha1, - hash_update_sha1, - hash_finish_sha1, + .name = "sha1", + .digest_size = SHA1_SUM_LEN, + .chunk_size = CHUNKSZ_SHA1, +#ifdef CONFIG_SHA_HW_ACCEL + .hash_func_ws = hw_sha1, +#else + .hash_func_ws = sha1_csum_wd, +#endif +#ifdef CONFIG_SHA_PROG_HW_ACCEL + .hash_init = hw_sha_init, + .hash_update = hw_sha_update, + .hash_finish = hw_sha_finish, +#else + .hash_init = hash_init_sha1, + .hash_update = hash_update_sha1, + .hash_finish = hash_finish_sha1, +#endif }, #endif #ifdef CONFIG_SHA256 { - "sha256", - SHA256_SUM_LEN, - sha256_csum_wd, - CHUNKSZ_SHA256, - hash_init_sha256, - hash_update_sha256, - hash_finish_sha256, + .name = "sha256", + .digest_size = SHA256_SUM_LEN, + .chunk_size = CHUNKSZ_SHA256, +#ifdef CONFIG_SHA_HW_ACCEL + .hash_func_ws = hw_sha256, +#else + .hash_func_ws = sha256_csum_wd, +#endif +#ifdef CONFIG_SHA_PROG_HW_ACCEL + .hash_init = hw_sha_init, + .hash_update = hw_sha_update, + .hash_finish = hw_sha_finish, +#else + .hash_init = hash_init_sha256, + .hash_update = hash_update_sha256, + .hash_finish = hash_finish_sha256, +#endif }, #endif { - "crc32", - 4, - crc32_wd_buf, - CHUNKSZ_CRC32, - hash_init_crc32, - hash_update_crc32, - hash_finish_crc32, + .name = "crc32", + .digest_size = 4, + .chunk_size = CHUNKSZ_CRC32, + .hash_func_ws = crc32_wd_buf, + .hash_init = hash_init_crc32, + .hash_update = hash_update_crc32, + .hash_finish = hash_finish_crc32, }, }; -#if defined(CONFIG_SHA256) || defined(CONFIG_CMD_SHA1SUM) -#define MULTI_HASH -#endif - -#if defined(CONFIG_HASH_VERIFY) || defined(CONFIG_CMD_HASH) -#define MULTI_HASH -#endif - /* Try to minimize code size for boards that don't want much hashing */ -#ifdef MULTI_HASH +#if defined(CONFIG_SHA256) || defined(CONFIG_CMD_SHA1SUM) || \ + defined(CONFIG_CRC32_VERIFY) || defined(CONFIG_CMD_HASH) #define multi_hash() 1 #else #define multi_hash() 0 @@ -216,6 +213,49 @@ int hash_progressive_lookup_algo(const char *algo_name, } #ifndef USE_HOSTCC +int hash_parse_string(const char *algo_name, const char *str, uint8_t *result) +{ + struct hash_algo *algo; + int ret; + int i; + + ret = hash_lookup_algo(algo_name, &algo); + if (ret) + return ret; + + for (i = 0; i < algo->digest_size; i++) { + char chr[3]; + + strncpy(chr, &str[i * 2], 2); + result[i] = simple_strtoul(chr, NULL, 16); + } + + return 0; +} + +int hash_block(const char *algo_name, const void *data, unsigned int len, + uint8_t *output, int *output_size) +{ + struct hash_algo *algo; + int ret; + + ret = hash_lookup_algo(algo_name, &algo); + if (ret) + return ret; + + if (output_size && *output_size < algo->digest_size) { + debug("Output buffer size %d too small (need %d bytes)", + *output_size, algo->digest_size); + return -ENOSPC; + } + if (output_size) + *output_size = algo->digest_size; + algo->hash_func_ws(data, len, output, algo->chunk_size); + + return 0; +} + +#if defined(CONFIG_CMD_HASH) || defined(CONFIG_CMD_SHA1SUM) || defined(CONFIG_CMD_CRC32) /** * store_result: Store the resulting sum to an address or variable * @@ -255,7 +295,7 @@ static void store_result(struct hash_algo *algo, const uint8_t *sum, str_ptr += 2; } *str_ptr = '\0'; - setenv(dest, str_output); + env_set(dest, str_output); } else { ulong addr; void *buf; @@ -304,7 +344,6 @@ static int parse_verify_sum(struct hash_algo *algo, char *verify_str, buf = map_sysmem(addr, algo->digest_size); memcpy(vsum, buf, algo->digest_size); } else { - unsigned int i; char *vsum_str; int digits = algo->digest_size * 2; @@ -316,7 +355,7 @@ static int parse_verify_sum(struct hash_algo *algo, char *verify_str, if (strlen(verify_str) == digits) vsum_str = verify_str; else { - vsum_str = getenv(verify_str); + vsum_str = env_get(verify_str); if (vsum_str == NULL || strlen(vsum_str) != digits) { printf("Expected %d hex digits in env var\n", digits); @@ -324,19 +363,12 @@ static int parse_verify_sum(struct hash_algo *algo, char *verify_str, } } - for (i = 0; i < algo->digest_size; i++) { - char *nullp = vsum_str + (i + 1) * 2; - char end = *nullp; - - *nullp = '\0'; - vsum[i] = simple_strtoul(vsum_str + (i * 2), NULL, 16); - *nullp = end; - } + hash_parse_string(algo->name, vsum_str, vsum); } return 0; } -void hash_show(struct hash_algo *algo, ulong addr, ulong len, uint8_t *output) +static void hash_show(struct hash_algo *algo, ulong addr, ulong len, uint8_t *output) { int i; @@ -345,28 +377,6 @@ void hash_show(struct hash_algo *algo, ulong addr, ulong len, uint8_t *output) printf("%02x", output[i]); } -int hash_block(const char *algo_name, const void *data, unsigned int len, - uint8_t *output, int *output_size) -{ - struct hash_algo *algo; - int ret; - - ret = hash_lookup_algo(algo_name, &algo); - if (ret) - return ret; - - if (output_size && *output_size < algo->digest_size) { - debug("Output buffer size %d too small (need %d bytes)", - *output_size, algo->digest_size); - return -ENOSPC; - } - if (output_size) - *output_size = algo->digest_size; - algo->hash_func_ws(data, len, output, algo->chunk_size); - - return 0; -} - int hash_command(const char *algo_name, int flags, cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]) { @@ -400,7 +410,8 @@ int hash_command(const char *algo_name, int flags, cmd_tbl_t *cmdtp, int flag, unmap_sysmem(buf); /* Try to avoid code bloat when verify is not needed */ -#ifdef CONFIG_HASH_VERIFY +#if defined(CONFIG_CRC32_VERIFY) || defined(CONFIG_SHA1SUM_VERIFY) || \ + defined(CONFIG_HASH_VERIFY) if (flags & HASH_FLAG_VERIFY) { #else if (0) { @@ -449,4 +460,5 @@ int hash_command(const char *algo_name, int flags, cmd_tbl_t *cmdtp, int flag, return 0; } -#endif +#endif /* CONFIG_CMD_HASH || CONFIG_CMD_SHA1SUM || CONFIG_CMD_CRC32) */ +#endif /* !USE_HOSTCC */