fs/ubifs/auth.c

380  * @ofs_hmac: the offset in the node where the HMAC is inserted
388 				int len, int ofs_hmac, void *hmac)
394 	ubifs_assert(c, ofs_hmac > 8);
395 	ubifs_assert(c, ofs_hmac + hmac_len < len);
404 	err = crypto_shash_update(shash, node + 8, ofs_hmac - 8);
409 	if (len - ofs_hmac - hmac_len > 0) {
410 		err = crypto_shash_update(shash, node + ofs_hmac + hmac_len,
411 			    len - ofs_hmac - hmac_len);
424  * @ofs_hmac: the offset in the node where the HMAC is inserted
426  * This function inserts a HMAC at offset @ofs_hmac into the node given in
432 			    int ofs_hmac)
434 	return ubifs_node_calc_hmac(c, node, len, ofs_hmac, node + ofs_hmac);
442  * @ofs_hmac: the offset in the node where the HMAC is inserted
444  * This function verifies the HMAC at offset @ofs_hmac of the node given in
448 			     int len, int ofs_hmac)
458 	err = ubifs_node_calc_hmac(c, node, len, ofs_hmac, hmac);
464 	err = crypto_memneq(hmac, node + ofs_hmac, hmac_len);