Hi all! I am currently debugging a drivers for our crypto HW which offload IPSec (ESP for now) to HW. With SHA driver I am facing a strange problem. For reasons unknown to me 'authenc_verify_ahash_done' is failing (http://lxr.linux.no/linux+v2.6.37/crypto/authenc.c). This api got called from my SHA driver. File:http://lxr.linux.no/linux+v2.6.37/crypto/authenc.c 224 authsize = crypto_aead_authsize(authenc); 225 cryptlen -= authsize; 226 ihash = ahreq->result + authsize; 227 scatterwalk_map_and_copy(ihash, areq_ctx->sg, areq_ctx->cryptlen, 228 authsize, 0); 229 230 err = memcmp(ihash, ahreq->result, authsize) ? -EBADMSG : 0; ------>> this is giving bad message. I am trying to understand authenc_verify_ahash_done to debug this issue. I do not know if authsize is wrong or scatterwalk_map_and_copy was a failure or struct crypto_async_request *areq received is corrupted. Since this API is not involved when I use s/w crypto I do not have any working example to follow. Just wondering if anyone come across any such problem or issue while developing H/W crypto driver. I am using Linux 2.6.37 for my development. Appreciate any suggestion/pointer regarding my problem. SP -- To unsubscribe from this list: send the line "unsubscribe linux-crypto" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
