[dpdk-dev] [PATCH v2 5/5] examples/l2fwd-crypto: remove duplicated capability check

Pablo de Lara pablo.de.lara.guarch at intel.com
Thu Jul 19 10:39:59 CEST 2018


Now that device capabilities are checked separately,
before setting the xform parameters, it is not required
to do the check again, leaving only the xform setting
with the device configuration.

Signed-off-by: Pablo de Lara <pablo.de.lara.guarch at intel.com>
---
 examples/l2fwd-crypto/main.c | 233 +++++++++----------------------------------
 1 file changed, 45 insertions(+), 188 deletions(-)

diff --git a/examples/l2fwd-crypto/main.c b/examples/l2fwd-crypto/main.c
index 273c852f1..ef3302545 100644
--- a/examples/l2fwd-crypto/main.c
+++ b/examples/l2fwd-crypto/main.c
@@ -2304,22 +2304,11 @@ initialize_cryptodevs(struct l2fwd_crypto_options *options, unsigned nb_ports,
 
 		/* Set AEAD parameters */
 		if (options->xform_chain == L2FWD_CRYPTO_AEAD) {
-			/* Check if device supports AEAD algo */
 			cap = check_device_support_aead_algo(options, &dev_info,
 							cdev_id);
-			if (cap == NULL)
-				continue;
 
 			options->block_size = cap->sym.aead.block_size;
 
-			if (check_iv_param(&cap->sym.aead.iv_size,
-					options->aead_iv_param,
-					options->aead_iv_random_size,
-					options->aead_iv.length) < 0) {
-				printf("Unsupported IV length\n");
-				continue;
-			}
-
 			/* Set IV if not provided from command line */
 			if (options->aead_iv_param == 0) {
 				if (options->aead_iv_random_size != -1)
@@ -2331,93 +2320,41 @@ initialize_cryptodevs(struct l2fwd_crypto_options *options, unsigned nb_ports,
 						cap->sym.aead.iv_size.min;
 			}
 
-			/*
-			 * Check if length of provided AEAD key is supported
-			 * by the algorithm chosen.
-			 */
-			if (options->aead_key_param) {
-				if (check_supported_size(
-						options->aead_xform.aead.key.length,
-						cap->sym.aead.key_size.min,
-						cap->sym.aead.key_size.max,
-						cap->sym.aead.key_size.increment)
-							!= 0) {
-					printf("Unsupported aead key length\n");
-					continue;
-				}
-			/*
-			 * Check if length of the aead key to be randomly generated
-			 * is supported by the algorithm chosen.
-			 */
-			} else if (options->aead_key_random_size != -1) {
-				if (check_supported_size(options->aead_key_random_size,
-						cap->sym.aead.key_size.min,
-						cap->sym.aead.key_size.max,
-						cap->sym.aead.key_size.increment)
-							!= 0) {
-					printf("Unsupported aead key length\n");
-					continue;
-				}
-				options->aead_xform.aead.key.length =
-							options->aead_key_random_size;
-			/* No size provided, use minimum size. */
-			} else
-				options->aead_xform.aead.key.length =
+			/* Set key if not provided from command line */
+			if (options->aead_key_param == 0) {
+				if (options->aead_key_random_size != -1)
+					options->aead_xform.aead.key.length =
+						options->aead_key_random_size;
+				/* No size provided, use minimum size. */
+				else
+					options->aead_xform.aead.key.length =
 						cap->sym.aead.key_size.min;
 
-			if (!options->aead_key_param)
 				generate_random_key(
 					options->aead_xform.aead.key.data,
 					options->aead_xform.aead.key.length);
+			}
 
-			/*
-			 * Check if length of provided AAD is supported
-			 * by the algorithm chosen.
-			 */
-			if (options->aad_param) {
-				if (check_supported_size(options->aad.length,
-						cap->sym.aead.aad_size.min,
-						cap->sym.aead.aad_size.max,
-						cap->sym.aead.aad_size.increment)
-							!= 0) {
-					printf("Unsupported AAD length\n");
-					continue;
-				}
-			/*
-			 * Check if length of AAD to be randomly generated
-			 * is supported by the algorithm chosen.
-			 */
-			} else if (options->aad_random_size != -1) {
-				if (check_supported_size(options->aad_random_size,
-						cap->sym.aead.aad_size.min,
-						cap->sym.aead.aad_size.max,
-						cap->sym.aead.aad_size.increment)
-							!= 0) {
-					printf("Unsupported AAD length\n");
-					continue;
-				}
-				options->aad.length = options->aad_random_size;
-			/* No size provided, use minimum size. */
-			} else
-				options->aad.length = cap->sym.auth.aad_size.min;
+			/* Set AAD if not provided from command line */
+			if (options->aad_param == 0) {
+				if (options->aad_random_size != -1)
+					options->aad.length =
+						options->aad_random_size;
+				/* No size provided, use minimum size. */
+				else
+					options->aad.length =
+						cap->sym.auth.aad_size.min;
+			}
 
 			options->aead_xform.aead.aad_length =
 						options->aad.length;
 
-			/* Check if digest size is supported by the algorithm. */
-			if (options->digest_size != -1) {
-				if (check_supported_size(options->digest_size,
-						cap->sym.aead.digest_size.min,
-						cap->sym.aead.digest_size.max,
-						cap->sym.aead.digest_size.increment)
-							!= 0) {
-					printf("Unsupported digest length\n");
-					continue;
-				}
+			/* Set digest size if not provided from command line */
+			if (options->digest_size != -1)
 				options->aead_xform.aead.digest_length =
 							options->digest_size;
-			/* No size provided, use minimum size. */
-			} else
+				/* No size provided, use minimum size. */
+			else
 				options->aead_xform.aead.digest_length =
 						cap->sym.aead.digest_size.min;
 		}
@@ -2426,22 +2363,10 @@ initialize_cryptodevs(struct l2fwd_crypto_options *options, unsigned nb_ports,
 		if (options->xform_chain == L2FWD_CRYPTO_CIPHER_HASH ||
 				options->xform_chain == L2FWD_CRYPTO_HASH_CIPHER ||
 				options->xform_chain == L2FWD_CRYPTO_CIPHER_ONLY) {
-			/* Check if device supports cipher algo */
 			cap = check_device_support_cipher_algo(options, &dev_info,
 							cdev_id);
-			if (cap == NULL)
-				continue;
-
 			options->block_size = cap->sym.cipher.block_size;
 
-			if (check_iv_param(&cap->sym.cipher.iv_size,
-					options->cipher_iv_param,
-					options->cipher_iv_random_size,
-					options->cipher_iv.length) < 0) {
-				printf("Unsupported IV length\n");
-				continue;
-			}
-
 			/* Set IV if not provided from command line */
 			if (options->cipher_iv_param == 0) {
 				if (options->cipher_iv_random_size != -1)
@@ -2453,64 +2378,28 @@ initialize_cryptodevs(struct l2fwd_crypto_options *options, unsigned nb_ports,
 						cap->sym.cipher.iv_size.min;
 			}
 
-			/*
-			 * Check if length of provided cipher key is supported
-			 * by the algorithm chosen.
-			 */
-			if (options->ckey_param) {
-				if (check_supported_size(
-						options->cipher_xform.cipher.key.length,
-						cap->sym.cipher.key_size.min,
-						cap->sym.cipher.key_size.max,
-						cap->sym.cipher.key_size.increment)
-							!= 0) {
-					printf("Unsupported cipher key length\n");
-					continue;
-				}
-			/*
-			 * Check if length of the cipher key to be randomly generated
-			 * is supported by the algorithm chosen.
-			 */
-			} else if (options->ckey_random_size != -1) {
-				if (check_supported_size(options->ckey_random_size,
-						cap->sym.cipher.key_size.min,
-						cap->sym.cipher.key_size.max,
-						cap->sym.cipher.key_size.increment)
-							!= 0) {
-					printf("Unsupported cipher key length\n");
-					continue;
-				}
-				options->cipher_xform.cipher.key.length =
-							options->ckey_random_size;
-			/* No size provided, use minimum size. */
-			} else
-				options->cipher_xform.cipher.key.length =
+			/* Set key if not provided from command line */
+			if (options->ckey_param == 0) {
+				if (options->ckey_random_size != -1)
+					options->cipher_xform.cipher.key.length =
+						options->ckey_random_size;
+				/* No size provided, use minimum size. */
+				else
+					options->cipher_xform.cipher.key.length =
 						cap->sym.cipher.key_size.min;
 
-			if (!options->ckey_param)
 				generate_random_key(
 					options->cipher_xform.cipher.key.data,
 					options->cipher_xform.cipher.key.length);
-
+			}
 		}
 
 		/* Set auth parameters */
 		if (options->xform_chain == L2FWD_CRYPTO_CIPHER_HASH ||
 				options->xform_chain == L2FWD_CRYPTO_HASH_CIPHER ||
 				options->xform_chain == L2FWD_CRYPTO_HASH_ONLY) {
-			/* Check if device supports auth algo */
 			cap = check_device_support_auth_algo(options, &dev_info,
 							cdev_id);
-			if (cap == NULL)
-				continue;
-
-			if (check_iv_param(&cap->sym.auth.iv_size,
-					options->auth_iv_param,
-					options->auth_iv_random_size,
-					options->auth_iv.length) < 0) {
-				printf("Unsupported IV length\n");
-				continue;
-			}
 
 			/* Set IV if not provided from command line */
 			if (options->auth_iv_param == 0) {
@@ -2523,59 +2412,27 @@ initialize_cryptodevs(struct l2fwd_crypto_options *options, unsigned nb_ports,
 						cap->sym.auth.iv_size.min;
 			}
 
-			/*
-			 * Check if length of provided auth key is supported
-			 * by the algorithm chosen.
-			 */
-			if (options->akey_param) {
-				if (check_supported_size(
-						options->auth_xform.auth.key.length,
-						cap->sym.auth.key_size.min,
-						cap->sym.auth.key_size.max,
-						cap->sym.auth.key_size.increment)
-							!= 0) {
-					printf("Unsupported auth key length\n");
-					continue;
-				}
-			/*
-			 * Check if length of the auth key to be randomly generated
-			 * is supported by the algorithm chosen.
-			 */
-			} else if (options->akey_random_size != -1) {
-				if (check_supported_size(options->akey_random_size,
-						cap->sym.auth.key_size.min,
-						cap->sym.auth.key_size.max,
-						cap->sym.auth.key_size.increment)
-							!= 0) {
-					printf("Unsupported auth key length\n");
-					continue;
-				}
-				options->auth_xform.auth.key.length =
-							options->akey_random_size;
-			/* No size provided, use minimum size. */
-			} else
-				options->auth_xform.auth.key.length =
+			/* Set key if not provided from command line */
+			if (options->akey_param == 0) {
+				if (options->akey_random_size != -1)
+					options->auth_xform.auth.key.length =
+						options->akey_random_size;
+				/* No size provided, use minimum size. */
+				else
+					options->auth_xform.auth.key.length =
 						cap->sym.auth.key_size.min;
 
-			if (!options->akey_param)
 				generate_random_key(
 					options->auth_xform.auth.key.data,
 					options->auth_xform.auth.key.length);
+			}
 
-			/* Check if digest size is supported by the algorithm. */
-			if (options->digest_size != -1) {
-				if (check_supported_size(options->digest_size,
-						cap->sym.auth.digest_size.min,
-						cap->sym.auth.digest_size.max,
-						cap->sym.auth.digest_size.increment)
-							!= 0) {
-					printf("Unsupported digest length\n");
-					continue;
-				}
+			/* Set digest size if not provided from command line */
+			if (options->digest_size != -1)
 				options->auth_xform.auth.digest_length =
 							options->digest_size;
-			/* No size provided, use minimum size. */
-			} else
+				/* No size provided, use minimum size. */
+			else
 				options->auth_xform.auth.digest_length =
 						cap->sym.auth.digest_size.min;
 		}
-- 
2.14.4



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