From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 868B243329; Tue, 14 Nov 2023 12:10:09 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 752E540648; Tue, 14 Nov 2023 12:10:00 +0100 (CET) Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by mails.dpdk.org (Postfix) with ESMTP id 02362402E4 for ; Tue, 14 Nov 2023 12:09:55 +0100 (CET) Received: from kwepemd100004.china.huawei.com (unknown [172.30.72.57]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4SV3Tm6pfFzWhJ8; Tue, 14 Nov 2023 19:09:32 +0800 (CST) Received: from localhost.localdomain (10.67.165.2) by kwepemd100004.china.huawei.com (7.221.188.31) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.2.1258.23; Tue, 14 Nov 2023 19:09:54 +0800 From: Jie Hai To: , Cheng Jiang , Chenbo Xia , Chengwen Feng , =?UTF-8?q?Morten=20Br=C3=B8rup?= , Jiayu Hu CC: , Subject: [PATCH v3 05/22] app/dma-perf: replace strtok with reentrant version Date: Tue, 14 Nov 2023 18:59:49 +0800 Message-ID: <20231114110006.91148-6-haijie1@huawei.com> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20231114110006.91148-1-haijie1@huawei.com> References: <20231113104550.2138654-1-haijie1@huawei.com> <20231114110006.91148-1-haijie1@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [10.67.165.2] X-ClientProxiedBy: dggems705-chm.china.huawei.com (10.3.19.182) To kwepemd100004.china.huawei.com (7.221.188.31) X-CFilter-Loop: Reflected X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org 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: 623dc9364dc6 ("app/dma-perf: introduce DMA performance test") Cc: stable@dpdk.org Signed-off-by: Jie Hai Acked-by: Chengwen Feng --- app/test-dma-perf/main.c | 13 ++++++++----- 1 file changed, 8 insertions(+), 5 deletions(-) diff --git a/app/test-dma-perf/main.c b/app/test-dma-perf/main.c index e5bccc27da5e..38780939578e 100644 --- a/app/test-dma-perf/main.c +++ b/app/test-dma-perf/main.c @@ -164,6 +164,7 @@ parse_lcore(struct test_configure *test_case, const char *value) uint16_t len; char *input; struct lcore_dma_map_t *lcore_dma_map; + char *sp = NULL; if (test_case == NULL || value == NULL) return -1; @@ -175,7 +176,7 @@ parse_lcore(struct test_configure *test_case, const char *value) memset(lcore_dma_map, 0, sizeof(struct lcore_dma_map_t)); - char *token = strtok(input, ", "); + char *token = strtok_r(input, ", ", &sp); while (token != NULL) { if (lcore_dma_map->cnt >= MAX_LCORE_NB) { free(input); @@ -185,7 +186,7 @@ parse_lcore(struct test_configure *test_case, const char *value) uint16_t lcore_id = atoi(token); lcore_dma_map->lcores[lcore_dma_map->cnt++] = lcore_id; - token = strtok(NULL, ", "); + token = strtok_r(NULL, ", ", &sp); } free(input); @@ -201,6 +202,7 @@ parse_lcore_dma(struct test_configure *test_case, const char *value) char *start, *end, *substr; uint16_t lcore_id; int ret = 0; + char *sp = NULL; if (test_case == NULL || value == NULL) return -1; @@ -216,7 +218,7 @@ parse_lcore_dma(struct test_configure *test_case, const char *value) goto out; } - substr = strtok(addrs, ","); + substr = strtok_r(addrs, ",", &sp); if (substr == NULL) { fprintf(stderr, "No input DMA address\n"); ret = -1; @@ -258,7 +260,7 @@ parse_lcore_dma(struct test_configure *test_case, const char *value) strlcpy(lcore_dma_map->dma_names[lcore_dma_map->cnt], ptrs[1], RTE_DEV_NAME_MAX_LEN); lcore_dma_map->cnt++; - substr = strtok(NULL, ","); + substr = strtok_r(NULL, ",", &sp); } while (substr != NULL); out: @@ -486,6 +488,7 @@ main(int argc, char *argv[]) char *rst_path_ptr = NULL; char rst_path[PATH_MAX]; int new_argc; + char *sp = NULL; memset(args, 0, sizeof(args)); @@ -504,7 +507,7 @@ main(int argc, char *argv[]) } if (rst_path_ptr == NULL) { strlcpy(rst_path, cfg_path_ptr, PATH_MAX); - char *token = strtok(basename(rst_path), "."); + char *token = strtok_r(basename(rst_path), ".", &sp); if (token == NULL) { printf("Config file error.\n"); return -1; -- 2.30.0