5. OpenSSL Crypto Poll Mode Driver
This code provides the initial implementation of the openssl poll mode driver. All cryptography operations are using Openssl library crypto API. Each algorithm uses EVP interface from openssl API - which is recommended by Openssl maintainers.
For more details about openssl library please visit openssl webpage: https://www.openssl.org/
5.1. Features
OpenSSL PMD has support for:
Supported cipher algorithms:
* RTE_CRYPTO_CIPHER_3DES_CBC
* RTE_CRYPTO_CIPHER_AES_CBC
* RTE_CRYPTO_CIPHER_AES_CTR
* RTE_CRYPTO_CIPHER_3DES_CTR
* RTE_CRYPTO_CIPHER_AES_GCM
Supported authentication algorithms:
* RTE_CRYPTO_AUTH_AES_GMAC
* RTE_CRYPTO_AUTH_MD5
* RTE_CRYPTO_AUTH_SHA1
* RTE_CRYPTO_AUTH_SHA224
* RTE_CRYPTO_AUTH_SHA256
* RTE_CRYPTO_AUTH_SHA384
* RTE_CRYPTO_AUTH_SHA512
* RTE_CRYPTO_AUTH_MD5_HMAC
* RTE_CRYPTO_AUTH_SHA1_HMAC
* RTE_CRYPTO_AUTH_SHA224_HMAC
* RTE_CRYPTO_AUTH_SHA256_HMAC
* RTE_CRYPTO_AUTH_SHA384_HMAC
* RTE_CRYPTO_AUTH_SHA512_HMAC
5.2. Installation
To compile openssl PMD, it has to be enabled in the config/common_base file and appropriate openssl packages have to be installed in the build environment.
The newest openssl library version is supported: * 1.0.2h-fips 3 May 2016. Older versions that were also verified: * 1.0.1f 6 Jan 2014 * 1.0.1 14 Mar 2012
For Ubuntu 14.04 LTS these packages have to be installed in the build system: sudo apt-get install openssl sudo apt-get install libc6-dev-i386 (for i686-native-linuxapp-gcc target)
This code was also verified on Fedora 24. This code was NOT yet verified on FreeBSD.
5.3. Initialization
User can use app/test application to check how to use this pmd and to verify crypto processing.
Test name is cryptodev_openssl_autotest. For performance test cryptodev_openssl_perftest can be used.
To verify real traffic l2fwd-crypto example can be used with this command:
sudo ./build/l2fwd-crypto -c 0x3 -n 4 --vdev "crypto_openssl"
--vdev "crypto_openssl"-- -p 0x3 --chain CIPHER_HASH
--cipher_op ENCRYPT --cipher_algo AES_CBC
--cipher_key 00:01:02:03:04:05:06:07:08:09:0a:0b:0c:0d:0e:0f
--iv 00:01:02:03:04:05:06:07:08:09:0a:0b:0c:0d:0e:ff
--auth_op GENERATE --auth_algo SHA1_HMAC
--auth_key 11:11:11:11:11:11:11:11:11:11:11:11:11:11:11:11:11:11:11:11:11:11
:11:11:11:11:11:11:11:11:11:11:11:11:11:11:11:11:11:11:11:11:11:11:11:11:11
:11:11:11:11:11:11:11:11:11:11:11:11:11:11:11:11:11
5.4. Limitations
- Maximum number of sessions is 2048.
- Chained mbufs are not supported.
- Hash only is not supported for GCM and GMAC.
- Cipher only is not supported for GCM and GMAC.