From d5b76673a5dfe0b5250baea3c36cdfa7a9fd5230 Mon Sep 17 00:00:00 2001 From: Simon Glass Date: Sun, 24 Feb 2013 17:33:26 +0000 Subject: hash: Add a flag to support saving hashes in the environment Some hashing commands permit saving the hash in an environment variable, and verifying a hash from there. But the crc32 command does not support this. In order to permit crc32 to use the generic hashing infrastructure, add a flag to select which behaviour to use. Signed-off-by: Simon Glass --- include/hash.h | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'include/hash.h') diff --git a/include/hash.h b/include/hash.h index 34ba558bd0..88fa2b5a57 100644 --- a/include/hash.h +++ b/include/hash.h @@ -51,19 +51,24 @@ struct hash_algo { */ #define HASH_MAX_DIGEST_SIZE 32 +enum { + HASH_FLAG_VERIFY = 1 << 0, /* Enable verify mode */ + HASH_FLAG_ENV = 1 << 1, /* Allow env vars */ +}; + /** * hash_command: Process a hash command for a particular algorithm * * This common function is used to implement specific hash commands. * * @algo_name: Hash algorithm being used - * @verify: Non-zero to enable verify mode + * @flags: Flags value (HASH_FLAG_...) * @cmdtp: Pointer to command table entry * @flag: Some flags normally 0 (see CMD_FLAG_.. above) * @argc: Number of arguments (arg 0 must be the command text) * @argv: Arguments */ -int hash_command(const char *algo_name, int verify, cmd_tbl_t *cmdtp, int flag, +int hash_command(const char *algo_name, int flags, cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[]); #endif -- cgit v1.2.1