13 #include <crypto/hash.h>
21  * __ubifs_node_calc_hash - calculate the hash of a UBIFS node
23  * @node: the node to calculate a hash for
24  * @hash: the returned hash
29 			    u8 *hash)  in __ubifs_node_calc_hash()  argument
34 				       hash);  in __ubifs_node_calc_hash()
38  * ubifs_hash_calc_hmac - calculate a HMAC from a hash
40  * @hash: the node to calculate a HMAC for
45 static int ubifs_hash_calc_hmac(const struct ubifs_info *c, const u8 *hash,  in ubifs_hash_calc_hmac()  argument
48 	return crypto_shash_tfm_digest(c->hmac_tfm, hash, c->hash_len, hmac);  in ubifs_hash_calc_hmac()
54  * @node: the node to calculate a hash for
55  * @inhash: input hash of previous nodes
58  * It creates a HMAC from the given input hash and writes it to the node.
66 	u8 hash[UBIFS_HASH_ARR_SZ];  in ubifs_prepare_auth_node()  local
75 		err = crypto_shash_final(hash_desc, hash);  in ubifs_prepare_auth_node()
80 	err = ubifs_hash_calc_hmac(c, hash, auth->hmac);  in ubifs_prepare_auth_node()
126  * ubifs_bad_hash - Report hash mismatches
129  * @hash: the expected hash
133  * This function reports a hash mismatch when a node has a different hash than
136 void ubifs_bad_hash(const struct ubifs_info *c, const void *node, const u8 *hash,  in ubifs_bad_hash()  argument
147 	ubifs_err(c, "hash mismatch on node at LEB %d:%d", lnum, offs);  in ubifs_bad_hash()
148 	ubifs_err(c, "hash expected:   %*ph%s", len, hash, cont);  in ubifs_bad_hash()
149 	ubifs_err(c, "hash calculated: %*ph%s", len, calc, cont);  in ubifs_bad_hash()
153  * __ubifs_node_check_hash - check the hash of a node against given hash
156  * @expected: the expected hash
158  * This function calculates a hash over a node and compares it to the given hash.
263 		ubifs_err(c, "authentication hash name needed with authentication");  in ubifs_init_authentication()
270 		ubifs_err(c, "Unknown hash algo %s specified",  in ubifs_init_authentication()
311 		ubifs_err(c, "hash %s is bigger than maximum allowed hash size (%d > %d)",  in ubifs_init_authentication()