[dpdk-dev] [PATCH 1/8] examples/fips_validation: enhance getopt_long usage

Ibtisam Tariq ibtisam.tariq at emumba.com
Thu Oct 29 13:53:32 CET 2020


Instead of using getopt_long return value, strcmp was used to
compare the input parameters with the struct option array. This
patch get rid of all those strcmp by directly binding each longopt
with an int enum.

Bugzilla ID: 238
Fixes: 3d0fad56b74 ("examples/fips_validation: add crypto FIPS application"}
Cc: marko.kovacevic at intel.com

Reported-by: David Marchand <david.marchand at redhat.com>
Signed-off-by: Ibtisam Tariq <ibtisam.tariq at emumba.com>
---
 examples/fips_validation/main.c | 241 +++++++++++++++++++-------------
 1 file changed, 143 insertions(+), 98 deletions(-)

diff --git a/examples/fips_validation/main.c b/examples/fips_validation/main.c
index 07532c956..5fb76b421 100644
--- a/examples/fips_validation/main.c
+++ b/examples/fips_validation/main.c
@@ -15,17 +15,31 @@
 #include "fips_validation.h"
 #include "fips_dev_self_test.h"
 
+enum{
 #define REQ_FILE_PATH_KEYWORD	"req-file"
+	/* first long only option value must be >= 256, so that we won't
+	 * conflict with short options
+	 */
+	REQ_FILE_PATH_KEYWORD_NUM = 256,
 #define RSP_FILE_PATH_KEYWORD	"rsp-file"
+	RSP_FILE_PATH_KEYWORD_NUM,
 #define MBUF_DATAROOM_KEYWORD	"mbuf-dataroom"
+	MBUF_DATAROOM_KEYWORD_NUM,
 #define FOLDER_KEYWORD		"path-is-folder"
+	FOLDER_KEYWORD_NUM,
 #define CRYPTODEV_KEYWORD	"cryptodev"
+	CRYPTODEV_KEYWORD_NUM,
 #define CRYPTODEV_ID_KEYWORD	"cryptodev-id"
+	CRYPTODEV_ID_KEYWORD_NUM,
 #define CRYPTODEV_ST_KEYWORD	"self-test"
+	CRYPTODEV_ST_KEYWORD_NUM,
 #define CRYPTODEV_BK_ID_KEYWORD	"broken-test-id"
+	CRYPTODEV_BK_ID_KEYWORD_NUM,
 #define CRYPTODEV_BK_DIR_KEY	"broken-test-dir"
+	CRYPTODEV_BK_DIR_KEY_NUM,
 #define CRYPTODEV_ENC_KEYWORD	"enc"
 #define CRYPTODEV_DEC_KEYWORD	"dec"
+};
 
 struct fips_test_vector vec;
 struct fips_test_interim_info info;
@@ -226,15 +240,24 @@ cryptodev_fips_validate_parse_args(int argc, char **argv)
 	char **argvopt;
 	int option_index;
 	struct option lgopts[] = {
-			{REQ_FILE_PATH_KEYWORD, required_argument, 0, 0},
-			{RSP_FILE_PATH_KEYWORD, required_argument, 0, 0},
-			{FOLDER_KEYWORD, no_argument, 0, 0},
-			{MBUF_DATAROOM_KEYWORD, required_argument, 0, 0},
-			{CRYPTODEV_KEYWORD, required_argument, 0, 0},
-			{CRYPTODEV_ID_KEYWORD, required_argument, 0, 0},
-			{CRYPTODEV_ST_KEYWORD, no_argument, 0, 0},
-			{CRYPTODEV_BK_ID_KEYWORD, required_argument, 0, 0},
-			{CRYPTODEV_BK_DIR_KEY, required_argument, 0, 0},
+			{REQ_FILE_PATH_KEYWORD, required_argument,
+					NULL, REQ_FILE_PATH_KEYWORD_NUM},
+			{RSP_FILE_PATH_KEYWORD, required_argument,
+					NULL, RSP_FILE_PATH_KEYWORD_NUM},
+			{FOLDER_KEYWORD, no_argument,
+					NULL, FOLDER_KEYWORD_NUM},
+			{MBUF_DATAROOM_KEYWORD, required_argument,
+					NULL, MBUF_DATAROOM_KEYWORD_NUM},
+			{CRYPTODEV_KEYWORD, required_argument,
+					NULL, CRYPTODEV_KEYWORD_NUM},
+			{CRYPTODEV_ID_KEYWORD, required_argument,
+					NULL, CRYPTODEV_ID_KEYWORD_NUM},
+			{CRYPTODEV_ST_KEYWORD, no_argument,
+					NULL, CRYPTODEV_ST_KEYWORD_NUM},
+			{CRYPTODEV_BK_ID_KEYWORD, required_argument,
+					NULL, CRYPTODEV_BK_ID_KEYWORD_NUM},
+			{CRYPTODEV_BK_DIR_KEY, required_argument,
+					NULL, CRYPTODEV_BK_DIR_KEY_NUM},
 			{NULL, 0, 0, 0}
 	};
 
@@ -251,105 +274,127 @@ cryptodev_fips_validate_parse_args(int argc, char **argv)
 	while ((opt = getopt_long(argc, argvopt, "s:",
 				  lgopts, &option_index)) != EOF) {
 
+		if (opt == '?') {
+			cryptodev_fips_validate_usage(prgname);
+			return -1;
+		}
+
 		switch (opt) {
-		case 0:
-			if (strcmp(lgopts[option_index].name,
-					REQ_FILE_PATH_KEYWORD) == 0)
-				env.req_path = optarg;
-			else if (strcmp(lgopts[option_index].name,
-					RSP_FILE_PATH_KEYWORD) == 0)
-				env.rsp_path = optarg;
-			else if (strcmp(lgopts[option_index].name,
-					FOLDER_KEYWORD) == 0)
-				env.is_path_folder = 1;
-			else if (strcmp(lgopts[option_index].name,
-					CRYPTODEV_KEYWORD) == 0) {
-				ret = parse_cryptodev_arg(optarg);
-				if (ret < 0) {
-					cryptodev_fips_validate_usage(prgname);
-					return -EINVAL;
-				}
-			} else if (strcmp(lgopts[option_index].name,
-					CRYPTODEV_ID_KEYWORD) == 0) {
-				ret = parse_cryptodev_id_arg(optarg);
-				if (ret < 0) {
-					cryptodev_fips_validate_usage(prgname);
-					return -EINVAL;
-				}
-			} else if (strcmp(lgopts[option_index].name,
-					CRYPTODEV_ST_KEYWORD) == 0) {
-				env.self_test = 1;
-			} else if (strcmp(lgopts[option_index].name,
-					CRYPTODEV_BK_ID_KEYWORD) == 0) {
-				if (!env.broken_test_config) {
-					env.broken_test_config = rte_malloc(
-						NULL,
-						sizeof(*env.broken_test_config),
-						0);
-					if (!env.broken_test_config)
-						return -ENOMEM;
-
-					env.broken_test_config->expect_fail_dir =
-						self_test_dir_enc_auth_gen;
-				}
+		case REQ_FILE_PATH_KEYWORD_NUM:
+		{
+			env.req_path = optarg;
+			break;
+		}
+		case RSP_FILE_PATH_KEYWORD_NUM:
+		{
+			env.rsp_path = optarg;
+			break;
+		}
+		case FOLDER_KEYWORD_NUM:
+		{
+			env.is_path_folder = 1;
+			break;
+		}
+		case CRYPTODEV_KEYWORD_NUM:
+		{
+			ret = parse_cryptodev_arg(optarg);
+			if (ret < 0) {
+				cryptodev_fips_validate_usage(prgname);
+				return -EINVAL;
+			}
 
-				if (parser_read_uint32(
-					&env.broken_test_config->expect_fail_test_idx,
-						optarg) < 0) {
-					rte_free(env.broken_test_config);
-					cryptodev_fips_validate_usage(prgname);
-					return -EINVAL;
-				}
-			} else if (strcmp(lgopts[option_index].name,
-					CRYPTODEV_BK_DIR_KEY) == 0) {
-				if (!env.broken_test_config) {
-					env.broken_test_config = rte_malloc(
-						NULL,
-						sizeof(*env.broken_test_config),
-						0);
-					if (!env.broken_test_config)
-						return -ENOMEM;
-
-					env.broken_test_config->
-						expect_fail_test_idx = 0;
-				}
+			break;
+		}
+		case CRYPTODEV_ID_KEYWORD_NUM:
+		{
+			ret = parse_cryptodev_id_arg(optarg);
+			if (ret < 0) {
+				cryptodev_fips_validate_usage(prgname);
+				return -EINVAL;
+			}
+			break;
+		}
+		case CRYPTODEV_ST_KEYWORD_NUM:
+		{
+			env.self_test = 1;
+			break;
+		}
+		case CRYPTODEV_BK_ID_KEYWORD_NUM:
+		{
+			if (!env.broken_test_config) {
+				env.broken_test_config = rte_malloc(
+					NULL,
+					sizeof(*env.broken_test_config),
+					0);
+				if (!env.broken_test_config)
+					return -ENOMEM;
+
+				env.broken_test_config->expect_fail_dir =
+					self_test_dir_enc_auth_gen;
+			}
 
-				if (strcmp(optarg, CRYPTODEV_ENC_KEYWORD) == 0)
-					env.broken_test_config->expect_fail_dir =
-						self_test_dir_enc_auth_gen;
-				else if (strcmp(optarg, CRYPTODEV_DEC_KEYWORD)
-						== 0)
-					env.broken_test_config->expect_fail_dir =
-						self_test_dir_dec_auth_verify;
-				else {
-					rte_free(env.broken_test_config);
-					cryptodev_fips_validate_usage(prgname);
-					return -EINVAL;
-				}
-			} else if (strcmp(lgopts[option_index].name,
-					MBUF_DATAROOM_KEYWORD) == 0) {
-				uint32_t data_room_size;
-
-				if (parser_read_uint32(&data_room_size,
-						optarg) < 0) {
-					cryptodev_fips_validate_usage(prgname);
-					return -EINVAL;
-				}
+			if (parser_read_uint32(
+				&env.broken_test_config->expect_fail_test_idx,
+					optarg) < 0) {
+				rte_free(env.broken_test_config);
+				cryptodev_fips_validate_usage(prgname);
+				return -EINVAL;
+			}
+			break;
+		}
+		case CRYPTODEV_BK_DIR_KEY_NUM:
+		{
+			if (!env.broken_test_config) {
+				env.broken_test_config = rte_malloc(
+					NULL,
+					sizeof(*env.broken_test_config),
+					0);
+				if (!env.broken_test_config)
+					return -ENOMEM;
+
+				env.broken_test_config->
+					expect_fail_test_idx = 0;
+			}
 
-				if (data_room_size == 0 ||
-						data_room_size > UINT16_MAX) {
-					cryptodev_fips_validate_usage(prgname);
-					return -EINVAL;
-				}
+			if (strcmp(optarg, CRYPTODEV_ENC_KEYWORD) == 0)
+				env.broken_test_config->expect_fail_dir =
+					self_test_dir_enc_auth_gen;
+			else if (strcmp(optarg, CRYPTODEV_DEC_KEYWORD)
+					== 0)
+				env.broken_test_config->expect_fail_dir =
+					self_test_dir_dec_auth_verify;
+			else {
+				rte_free(env.broken_test_config);
+				cryptodev_fips_validate_usage(prgname);
+				return -EINVAL;
+			}
+			break;
+		}
+		case MBUF_DATAROOM_KEYWORD_NUM:
+		{
+			uint32_t data_room_size;
 
-				env.mbuf_data_room = data_room_size;
-			} else {
+			if (parser_read_uint32(&data_room_size,
+					optarg) < 0) {
 				cryptodev_fips_validate_usage(prgname);
 				return -EINVAL;
 			}
+
+			if (data_room_size == 0 ||
+					data_room_size > UINT16_MAX) {
+				cryptodev_fips_validate_usage(prgname);
+				return -EINVAL;
+			}
+
+			env.mbuf_data_room = data_room_size;
+
 			break;
+		}
 		default:
-			return -1;
+		{
+			cryptodev_fips_validate_usage(prgname);
+			return -EINVAL;
+		}
 		}
 	}
 
-- 
2.17.1



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