C++ (Cpp) wcnss_wlan_crypto_alloc_ahash Exemples

Exemple #1

Fichier : vos_utils.c Projet : JYMroid/mi2_wlan_module

int hmac_md5(v_U8_t *key, v_U8_t ksize, char *plaintext, v_U8_t psize,
                v_U8_t *output, v_U8_t outlen)
{
    int ret = 0;
    struct crypto_ahash *tfm;
    struct scatterlist sg;
    struct ahash_request *req;
    struct hmac_md5_result tresult;
    void *hash_buff = NULL;

    unsigned char hash_result[64];
    int i;

    memset(output, 0, outlen);

    init_completion(&tresult.completion);

    tfm = wcnss_wlan_crypto_alloc_ahash("hmac(md5)", CRYPTO_ALG_TYPE_AHASH,
                                        CRYPTO_ALG_TYPE_AHASH_MASK);
    if (IS_ERR(tfm)) {
        VOS_TRACE(VOS_MODULE_ID_VOSS,VOS_TRACE_LEVEL_ERROR, "crypto_alloc_ahash failed");
                ret = PTR_ERR(tfm);
                goto err_tfm;
    }

    req = ahash_request_alloc(tfm, GFP_KERNEL);
    if (!req) {
        VOS_TRACE(VOS_MODULE_ID_VOSS,VOS_TRACE_LEVEL_ERROR, "failed to allocate request for hmac(md5)");
        ret = -ENOMEM;
        goto err_req;
    }

    ahash_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
                                        hmac_md5_complete, &tresult);

    hash_buff = kzalloc(psize, GFP_KERNEL);
    if (!hash_buff) {
        VOS_TRACE(VOS_MODULE_ID_VOSS,VOS_TRACE_LEVEL_ERROR, "failed to kzalloc hash_buff");
        ret = -ENOMEM;
        goto err_hash_buf;
    }

    memset(hash_result, 0, 64);
    memcpy(hash_buff, plaintext, psize);
    sg_init_one(&sg, hash_buff, psize);

    if (ksize) {
        crypto_ahash_clear_flags(tfm, ~0);
        ret = wcnss_wlan_crypto_ahash_setkey(tfm, key, ksize);

        if (ret) {
            VOS_TRACE(VOS_MODULE_ID_VOSS,VOS_TRACE_LEVEL_ERROR, "crypto_ahash_setkey failed");
            goto err_setkey;
        }
    }

    ahash_request_set_crypt(req, &sg, hash_result, psize);
    ret = wcnss_wlan_crypto_ahash_digest(req);

    VOS_TRACE(VOS_MODULE_ID_VOSS,VOS_TRACE_LEVEL_ERROR, "ret 0x%x");

    switch (ret) {
        case 0:
            for (i=0; i< outlen; i++)
                    output[i] = hash_result[i];
            break;
        case -EINPROGRESS:
        case -EBUSY:
             ret = wait_for_completion_interruptible(&tresult.completion);
             if (!ret && !tresult.err) {
                  INIT_COMPLETION(tresult.completion);
                  break;
             } else {
                 VOS_TRACE(VOS_MODULE_ID_VOSS,VOS_TRACE_LEVEL_ERROR, "wait_for_completion_interruptible failed");
                 if (!ret)
                     ret = tresult.err;
                 goto out;
             }
        default:
              goto out;
        }

out:
err_setkey:
        kfree(hash_buff);
err_hash_buf:
        ahash_request_free(req);
err_req:
        wcnss_wlan_crypto_free_ahash(tfm);
err_tfm:
        return ret;
}

Exemple #2

Fichier : vos_utils.c Projet : dianlujitao/platform_vendor_qcom-opensource_wlan_qcacld-2.0

int hmac_md5(v_U8_t *key, v_U8_t ksize, char *plaintext, v_U8_t psize,
                v_U8_t *output, v_U8_t outlen)
{
    int ret = 0;
    struct crypto_ahash *tfm;
    struct scatterlist sg;
    struct ahash_request *req;
    struct hmac_md5_result tresult = {.err = 0};
    void *hash_buff = NULL;

    unsigned char hash_result[64];
    int i;

    memset(output, 0, outlen);

    init_completion(&tresult.completion);

#if  !defined(CONFIG_CNSS) && (defined(HIF_USB) || defined(HIF_SDIO))
    tfm = crypto_alloc_ahash("hmac(md5)", CRYPTO_ALG_TYPE_AHASH,
                                        CRYPTO_ALG_TYPE_AHASH_MASK);
#else
    tfm = wcnss_wlan_crypto_alloc_ahash("hmac(md5)", CRYPTO_ALG_TYPE_AHASH,
                                        CRYPTO_ALG_TYPE_AHASH_MASK);
#endif
    if (IS_ERR(tfm)) {
        VOS_TRACE(VOS_MODULE_ID_VOSS,VOS_TRACE_LEVEL_ERROR, "crypto_alloc_ahash failed");
                ret = PTR_ERR(tfm);
                goto err_tfm;
    }

    req = ahash_request_alloc(tfm, GFP_KERNEL);
    if (!req) {
        VOS_TRACE(VOS_MODULE_ID_VOSS,VOS_TRACE_LEVEL_ERROR, "failed to allocate request for hmac(md5)");
        ret = -ENOMEM;
        goto err_req;
    }

    ahash_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
                                        hmac_md5_complete, &tresult);

    hash_buff = kzalloc(psize, GFP_KERNEL);
    if (!hash_buff) {
        VOS_TRACE(VOS_MODULE_ID_VOSS,VOS_TRACE_LEVEL_ERROR, "failed to kzalloc hash_buff");
        ret = -ENOMEM;
        goto err_hash_buf;
    }

    memset(hash_result, 0, 64);
    vos_mem_copy(hash_buff, plaintext, psize);
    sg_init_one(&sg, hash_buff, psize);

    if (ksize) {
        crypto_ahash_clear_flags(tfm, ~0);
#if  !defined(CONFIG_CNSS) && (defined(HIF_USB) || defined(HIF_SDIO))
        ret = crypto_ahash_setkey(tfm, key, ksize);
#else
        ret = wcnss_wlan_crypto_ahash_setkey(tfm, key, ksize);
#endif
        if (ret) {
            VOS_TRACE(VOS_MODULE_ID_VOSS,VOS_TRACE_LEVEL_ERROR, "crypto_ahash_setkey failed");
            goto err_setkey;
        }
    }

    ahash_request_set_crypt(req, &sg, hash_result, psize);
#if  !defined(CONFIG_CNSS) && (defined(HIF_USB) || defined(HIF_SDIO))
    ret = crypto_ahash_digest(req);
#else
    ret = wcnss_wlan_crypto_ahash_digest(req);
#endif

    VOS_TRACE(VOS_MODULE_ID_VOSS,VOS_TRACE_LEVEL_ERROR, "ret 0x%x", ret);

    switch (ret) {
        case 0:
            for (i=0; i< outlen; i++)
                    output[i] = hash_result[i];
            break;
        case -EINPROGRESS:
        case -EBUSY:
             ret = wait_for_completion_interruptible(&tresult.completion);
             if (!ret && !tresult.err) {
                 for (i = 0; i < outlen; i++)
                    output[i] = hash_result[i];
                  INIT_COMPLETION(tresult.completion);
                  break;
             } else {
                 VOS_TRACE(VOS_MODULE_ID_VOSS,VOS_TRACE_LEVEL_ERROR, "wait_for_completion_interruptible failed");
                 if (!ret)
                     ret = tresult.err;
                 goto out;
             }
        default:
              goto out;
        }

out:
err_setkey:
        kfree(hash_buff);
err_hash_buf:
        ahash_request_free(req);
err_req:
#if  !defined(CONFIG_CNSS) && (defined(HIF_USB) || defined(HIF_SDIO))
        crypto_free_ahash(tfm);
#else
        wcnss_wlan_crypto_free_ahash(tfm);
#endif
err_tfm:
        return ret;
}

VOS_STATUS vos_md5_hmac_str(v_U32_t cryptHandle, /* Handle */
           v_U8_t *pText, /* pointer to data stream */
           v_U32_t textLen, /* length of data stream */
           v_U8_t *pKey, /* pointer to authentication key */
           v_U32_t keyLen, /* length of authentication key */
           v_U8_t digest[VOS_DIGEST_MD5_SIZE])/* caller digest to be filled in */
{
    int ret = 0;

    ret = hmac_md5(
            pKey,                   //v_U8_t *key,
            (v_U8_t) keyLen,        //v_U8_t ksize,
            (char *)pText,          //char *plaintext,
            (v_U8_t) textLen,       //v_U8_t psize,
            digest,                 //v_U8_t *output,
            VOS_DIGEST_MD5_SIZE     //v_U8_t outlen
            );

    if (ret != 0) {
        VOS_TRACE(VOS_MODULE_ID_VOSS,VOS_TRACE_LEVEL_ERROR,"hmac_md5() call failed");
        return VOS_STATUS_E_FAULT;
    }

    return VOS_STATUS_SUCCESS;
}