[PATCH v3 04/22] app/crypto-perf: replace strtok with reentrant version

[Jie Hai <haijie1@huawei.com>]

Multiple threads calling the same function may cause condition
race issues, which often leads to abnormal behavior and can cause
more serious vulnerabilities such as abnormal termination, denial
of service, and compromised data integrity.

The strtok() is non-reentrant, it is better to replace it with a
reentrant version.

Fixes: f6cefe253cc8 ("app/crypto-perf: add range/list of sizes")
Fixes: f8be1786b1b8 ("app/crypto-perf: introduce performance test application")
Cc: stable@dpdk.org

Signed-off-by: Jie Hai <haijie1@huawei.com>
Acked-by: Chengwen Feng <fengchengwen@huawei.com>
---
 app/test-crypto-perf/cperf_options_parsing.c     | 16 +++++++++-------
 app/test-crypto-perf/cperf_test_vector_parsing.c | 10 ++++++----
 2 files changed, 15 insertions(+), 11 deletions(-)

diff --git a/app/test-crypto-perf/cperf_options_parsing.c b/app/test-crypto-perf/cperf_options_parsing.c
index 75afedc7fd6e..77cda0eb8e6f 100644
--- a/app/test-crypto-perf/cperf_options_parsing.c
+++ b/app/test-crypto-perf/cperf_options_parsing.c
@@ -161,6 +161,7 @@ parse_range(const char *arg, uint32_t *min, uint32_t *max, uint32_t *inc)
 {
 	char *token;
 	uint32_t number;
+	char *sp = NULL;
 
 	char *copy_arg = strdup(arg);
 
@@ -168,7 +169,7 @@ parse_range(const char *arg, uint32_t *min, uint32_t *max, uint32_t *inc)
 		return -1;
 
 	errno = 0;
-	token = strtok(copy_arg, ":");
+	token = strtok_r(copy_arg, ":", &sp);
 
 	/* Parse minimum value */
 	if (token != NULL) {
@@ -182,7 +183,7 @@ parse_range(const char *arg, uint32_t *min, uint32_t *max, uint32_t *inc)
 	} else
 		goto err_range;
 
-	token = strtok(NULL, ":");
+	token = strtok_r(NULL, ":", &sp);
 
 	/* Parse increment value */
 	if (token != NULL) {
@@ -196,7 +197,7 @@ parse_range(const char *arg, uint32_t *min, uint32_t *max, uint32_t *inc)
 	} else
 		goto err_range;
 
-	token = strtok(NULL, ":");
+	token = strtok_r(NULL, ":", &sp);
 
 	/* Parse maximum value */
 	if (token != NULL) {
@@ -211,7 +212,7 @@ parse_range(const char *arg, uint32_t *min, uint32_t *max, uint32_t *inc)
 	} else
 		goto err_range;
 
-	if (strtok(NULL, ":") != NULL)
+	if (strtok_r(NULL, ":", &sp) != NULL)
 		goto err_range;
 
 	free(copy_arg);
@@ -230,6 +231,7 @@ parse_list(const char *arg, uint32_t *list, uint32_t *min, uint32_t *max)
 	uint8_t count = 0;
 	uint32_t temp_min;
 	uint32_t temp_max;
+	char *sp = NULL;
 
 	char *copy_arg = strdup(arg);
 
@@ -237,7 +239,7 @@ parse_list(const char *arg, uint32_t *list, uint32_t *min, uint32_t *max)
 		return -1;
 
 	errno = 0;
-	token = strtok(copy_arg, ",");
+	token = strtok_r(copy_arg, ",", &sp);
 
 	/* Parse first value */
 	if (token != NULL) {
@@ -253,7 +255,7 @@ parse_list(const char *arg, uint32_t *list, uint32_t *min, uint32_t *max)
 	} else
 		goto err_list;
 
-	token = strtok(NULL, ",");
+	token = strtok_r(NULL, ",", &sp);
 
 	while (token != NULL) {
 		if (count == MAX_LIST) {
@@ -275,7 +277,7 @@ parse_list(const char *arg, uint32_t *list, uint32_t *min, uint32_t *max)
 		if (number > temp_max)
 			temp_max = number;
 
-		token = strtok(NULL, ",");
+		token = strtok_r(NULL, ",", &sp);
 	}
 
 	if (min)
diff --git a/app/test-crypto-perf/cperf_test_vector_parsing.c b/app/test-crypto-perf/cperf_test_vector_parsing.c
index 737d61d4af6b..4d2e6053e745 100644
--- a/app/test-crypto-perf/cperf_test_vector_parsing.c
+++ b/app/test-crypto-perf/cperf_test_vector_parsing.c
@@ -220,8 +220,9 @@ parse_values(char *tokens, uint8_t **data, uint32_t *data_length)
 
 	uint8_t *values, *values_resized;
 	char *tok, *error = NULL;
+	char *sp = NULL;
 
-	tok = strtok(tokens, CPERF_VALUE_DELIMITER);
+	tok = strtok_r(tokens, CPERF_VALUE_DELIMITER, &sp);
 	if (tok == NULL)
 		return -1;
 
@@ -252,7 +253,7 @@ parse_values(char *tokens, uint8_t **data, uint32_t *data_length)
 			return -1;
 		}
 
-		tok = strtok(NULL, CPERF_VALUE_DELIMITER);
+		tok = strtok_r(NULL, CPERF_VALUE_DELIMITER, &sp);
 		if (tok == NULL)
 			break;
 
@@ -283,6 +284,7 @@ parse_entry(char *entry, struct cperf_test_vector *vector,
 
 	uint8_t *data = NULL;
 	char *token, *key_token;
+	char *sp = NULL;
 
 	if (entry == NULL) {
 		printf("Expected entry value\n");
@@ -290,10 +292,10 @@ parse_entry(char *entry, struct cperf_test_vector *vector,
 	}
 
 	/* get key */
-	token = strtok(entry, CPERF_ENTRY_DELIMITER);
+	token = strtok_r(entry, CPERF_ENTRY_DELIMITER, &sp);
 	key_token = token;
 	/* get values for key */
-	token = strtok(NULL, CPERF_ENTRY_DELIMITER);
+	token = strtok_r(NULL, CPERF_ENTRY_DELIMITER, &sp);
 
 	if (key_token == NULL || token == NULL) {
 		printf("Expected 'key = values' but was '%.40s'..\n", entry);
-- 
2.30.0