X-Git-Url: https://git.kernelconcepts.de/?a=blobdiff_plain;f=common%2Fhash.c;h=12d67594abe0c6f912f5dcd80f5b0f4d1c3cd867;hb=2a43201a13bc690b5f15a1a998514d932db2f1b0;hp=722c40b3f33044bb1680643c47b236308cf1dd2b;hpb=c2120fbfbc4d1f6953228f86be8bdbf38bacfdab;p=karo-tx-uboot.git diff --git a/common/hash.c b/common/hash.c index 722c40b3f3..12d67594ab 100644 --- a/common/hash.c +++ b/common/hash.c @@ -12,13 +12,96 @@ #include #include +#include #include #include -#include -#include +#include +#include #include #include +#ifdef CONFIG_CMD_SHA1SUM +static int hash_init_sha1(struct hash_algo *algo, void **ctxp) +{ + sha1_context *ctx = malloc(sizeof(sha1_context)); + sha1_starts(ctx); + *ctxp = ctx; + return 0; +} + +static int hash_update_sha1(struct hash_algo *algo, void *ctx, const void *buf, + unsigned int size, int is_last) +{ + sha1_update((sha1_context *)ctx, buf, size); + return 0; +} + +static int hash_finish_sha1(struct hash_algo *algo, void *ctx, void *dest_buf, + int size) +{ + if (size < algo->digest_size) + return -1; + + sha1_finish((sha1_context *)ctx, dest_buf); + free(ctx); + return 0; +} +#endif + +#ifdef CONFIG_SHA256 +static int hash_init_sha256(struct hash_algo *algo, void **ctxp) +{ + sha256_context *ctx = malloc(sizeof(sha256_context)); + sha256_starts(ctx); + *ctxp = ctx; + return 0; +} + +static int hash_update_sha256(struct hash_algo *algo, void *ctx, + const void *buf, unsigned int size, int is_last) +{ + sha256_update((sha256_context *)ctx, buf, size); + return 0; +} + +static int hash_finish_sha256(struct hash_algo *algo, void *ctx, void + *dest_buf, int size) +{ + if (size < algo->digest_size) + return -1; + + sha256_finish((sha256_context *)ctx, dest_buf); + free(ctx); + return 0; +} +#endif + +static int hash_init_crc32(struct hash_algo *algo, void **ctxp) +{ + uint32_t *ctx = malloc(sizeof(uint32_t)); + *ctx = 0; + *ctxp = ctx; + return 0; +} + +static int hash_update_crc32(struct hash_algo *algo, void *ctx, + const void *buf, unsigned int size, int is_last) +{ + *((uint32_t *)ctx) = crc32(*((uint32_t *)ctx), buf, size); + return 0; +} + +static int hash_finish_crc32(struct hash_algo *algo, void *ctx, void *dest_buf, + int size) +{ + if (size < algo->digest_size) + return -1; + + *((uint32_t *)dest_buf) = *((uint32_t *)ctx); + free(ctx); + return 0; +} + /* * These are the hash algorithms we support. Chips which support accelerated * crypto could perhaps add named version of these algorithms here. Note that @@ -53,6 +136,9 @@ static struct hash_algo hash_algo[] = { SHA1_SUM_LEN, sha1_csum_wd, CHUNKSZ_SHA1, + hash_init_sha1, + hash_update_sha1, + hash_finish_sha1, }, #define MULTI_HASH #endif @@ -62,6 +148,9 @@ static struct hash_algo hash_algo[] = { SHA256_SUM_LEN, sha256_csum_wd, CHUNKSZ_SHA256, + hash_init_sha256, + hash_update_sha256, + hash_finish_sha256, }, #define MULTI_HASH #endif @@ -70,6 +159,9 @@ static struct hash_algo hash_algo[] = { 4, crc32_wd_buf, CHUNKSZ_CRC32, + hash_init_crc32, + hash_update_crc32, + hash_finish_crc32, }, }; @@ -95,7 +187,7 @@ static struct hash_algo hash_algo[] = { * @allow_env_vars: non-zero to permit storing the result to an * variable environment */ -static void store_result(struct hash_algo *algo, const u8 *sum, +static void store_result(struct hash_algo *algo, const uint8_t *sum, const char *dest, int allow_env_vars) { unsigned int i; @@ -122,7 +214,7 @@ static void store_result(struct hash_algo *algo, const u8 *sum, sprintf(str_ptr, "%02x", sum[i]); str_ptr += 2; } - str_ptr = '\0'; + *str_ptr = '\0'; setenv(dest, str_output); } else { ulong addr; @@ -151,8 +243,8 @@ static void store_result(struct hash_algo *algo, const u8 *sum, * address, and the * prefix is not expected. * @return 0 if ok, non-zero on error */ -static int parse_verify_sum(struct hash_algo *algo, char *verify_str, u8 *vsum, - int allow_env_vars) +static int parse_verify_sum(struct hash_algo *algo, char *verify_str, + uint8_t *vsum, int allow_env_vars) { int env_var = 0; @@ -204,20 +296,22 @@ static int parse_verify_sum(struct hash_algo *algo, char *verify_str, u8 *vsum, return 0; } -static struct hash_algo *find_hash_algo(const char *name) +int hash_lookup_algo(const char *algo_name, struct hash_algo **algop) { int i; for (i = 0; i < ARRAY_SIZE(hash_algo); i++) { - if (!strcmp(name, hash_algo[i].name)) - return &hash_algo[i]; + if (!strcmp(algo_name, hash_algo[i].name)) { + *algop = &hash_algo[i]; + return 0; + } } - return NULL; + debug("Unknown hash algorithm '%s'\n", algo_name); + return -EPROTONOSUPPORT; } -static void show_hash(struct hash_algo *algo, ulong addr, ulong len, - u8 *output) +void hash_show(struct hash_algo *algo, ulong addr, ulong len, uint8_t *output) { int i; @@ -230,12 +324,12 @@ 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; - algo = find_hash_algo(algo_name); - if (!algo) { - debug("Unknown hash algorithm '%s'\n", algo_name); - return -EPROTONOSUPPORT; - } if (output_size && *output_size < algo->digest_size) { debug("Output buffer size %d too small (need %d bytes)", *output_size, algo->digest_size); @@ -261,12 +355,11 @@ int hash_command(const char *algo_name, int flags, cmd_tbl_t *cmdtp, int flag, if (multi_hash()) { struct hash_algo *algo; - u8 output[HASH_MAX_DIGEST_SIZE]; - u8 vsum[HASH_MAX_DIGEST_SIZE]; + uint8_t output[HASH_MAX_DIGEST_SIZE]; + uint8_t vsum[HASH_MAX_DIGEST_SIZE]; void *buf; - algo = find_hash_algo(algo_name); - if (!algo) { + if (hash_lookup_algo(algo_name, &algo)) { printf("Unknown hash algorithm '%s'\n", algo_name); return CMD_RET_USAGE; } @@ -298,7 +391,7 @@ int hash_command(const char *algo_name, int flags, cmd_tbl_t *cmdtp, int flag, if (memcmp(output, vsum, algo->digest_size) != 0) { int i; - show_hash(algo, addr, len, output); + hash_show(algo, addr, len, output); printf(" != "); for (i = 0; i < algo->digest_size; i++) printf("%02x", vsum[i]); @@ -306,7 +399,7 @@ int hash_command(const char *algo_name, int flags, cmd_tbl_t *cmdtp, int flag, return 1; } } else { - show_hash(algo, addr, len, output); + hash_show(algo, addr, len, output); printf("\n"); if (argc) { @@ -325,8 +418,8 @@ int hash_command(const char *algo_name, int flags, cmd_tbl_t *cmdtp, int flag, printf("CRC32 for %08lx ... %08lx ==> %08lx\n", addr, addr + len - 1, crc); - if (argc > 3) { - ptr = (ulong *)simple_strtoul(argv[3], NULL, 16); + if (argc >= 3) { + ptr = (ulong *)simple_strtoul(argv[0], NULL, 16); *ptr = crc; } }