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author | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2014-05-09 10:47:05 +0200 |
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committer | Albert ARIBAUD <albert.u.boot@aribaud.net> | 2014-05-09 11:50:14 +0200 |
commit | d2a3e911390f9fc4d8c0ee4b3c7fc75f4fd3fd19 (patch) | |
tree | d71aae6d706d1f3b01da5f944e247abe308feea0 /include/hash.h | |
parent | 7904b70885f3c589c239f6ac978f299a6744557f (diff) | |
parent | 173d294b94cfec10063a5be40934d6d8fb7981ce (diff) | |
download | u-boot-imx-d2a3e911390f9fc4d8c0ee4b3c7fc75f4fd3fd19.zip u-boot-imx-d2a3e911390f9fc4d8c0ee4b3c7fc75f4fd3fd19.tar.gz u-boot-imx-d2a3e911390f9fc4d8c0ee4b3c7fc75f4fd3fd19.tar.bz2 |
Merge branch 'u-boot/master'
Conflicts:
drivers/net/Makefile
(trivial merge)
Diffstat (limited to 'include/hash.h')
-rw-r--r-- | include/hash.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/include/hash.h b/include/hash.h index e92d272..dc21678 100644 --- a/include/hash.h +++ b/include/hash.h @@ -27,6 +27,42 @@ struct hash_algo { void (*hash_func_ws)(const unsigned char *input, unsigned int ilen, unsigned char *output, unsigned int chunk_sz); int chunk_size; /* Watchdog chunk size */ + /* + * hash_init: Create the context for progressive hashing + * + * @algo: Pointer to the hash_algo struct + * @ctxp: Pointer to the pointer of the context for hashing + * @return 0 if ok, -1 on error + */ + int (*hash_init)(struct hash_algo *algo, void **ctxp); + /* + * hash_update: Perform hashing on the given buffer + * + * The context is freed by this function if an error occurs. + * + * @algo: Pointer to the hash_algo struct + * @ctx: Pointer to the context for hashing + * @buf: Pointer to the buffer being hashed + * @size: Size of the buffer being hashed + * @is_last: 1 if this is the last update; 0 otherwise + * @return 0 if ok, -1 on error + */ + int (*hash_update)(struct hash_algo *algo, void *ctx, const void *buf, + unsigned int size, int is_last); + /* + * hash_finish: Write the hash result to the given buffer + * + * The context is freed by this function. + * + * @algo: Pointer to the hash_algo struct + * @ctx: Pointer to the context for hashing + * @dest_buf: Pointer to the buffer for the result + * @size: Size of the buffer for the result + * @return 0 if ok, -ENOSPC if size of the result buffer is too small + * or -1 on other errors + */ + int (*hash_finish)(struct hash_algo *algo, void *ctx, void *dest_buf, + int size); }; /* @@ -77,4 +113,16 @@ int hash_command(const char *algo_name, int flags, cmd_tbl_t *cmdtp, int flag, int hash_block(const char *algo_name, const void *data, unsigned int len, uint8_t *output, int *output_size); +/** + * hash_lookup_algo() - Look up the hash_algo struct for an algorithm + * + * The function returns the pointer to the struct or -EPROTONOSUPPORT if the + * algorithm is not available. + * + * @algo_name: Hash algorithm to look up + * @algop: Pointer to the hash_algo struct if found + * + * @return 0 if ok, -EPROTONOSUPPORT for an unknown algorithm. + */ +int hash_lookup_algo(const char *algo_name, struct hash_algo **algop); #endif |