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 90DC045CA6; Fri, 8 Nov 2024 12:16:33 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 9BC7343374; Fri, 8 Nov 2024 12:15:51 +0100 (CET) Received: from szxga03-in.huawei.com (szxga03-in.huawei.com [45.249.212.189]) by mails.dpdk.org (Postfix) with ESMTP id B06D043348 for ; Fri, 8 Nov 2024 12:15:44 +0100 (CET) Received: from mail.maildlp.com (unknown [172.19.88.105]) by szxga03-in.huawei.com (SkyGuard) with ESMTP id 4XlGYP6V6vzQsYj; Fri, 8 Nov 2024 19:14:33 +0800 (CST) Received: from kwepemf500004.china.huawei.com (unknown [7.202.181.242]) by mail.maildlp.com (Postfix) with ESMTPS id 3E5C2140391; Fri, 8 Nov 2024 19:15:43 +0800 (CST) Received: from localhost.localdomain (10.28.79.22) by kwepemf500004.china.huawei.com (7.202.181.242) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1544.11; Fri, 8 Nov 2024 19:15:42 +0800 From: Jie Hai To: , , , Vladimir Medvedkin CC: , , , Subject: [PATCH v5 08/25] app/test-fib: replace strtok with reentrant version Date: Fri, 8 Nov 2024 19:03:47 +0800 Message-ID: <20241108110404.18317-9-haijie1@huawei.com> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20241108110404.18317-1-haijie1@huawei.com> References: <20231113104550.2138654-1-haijie1@huawei.com> <20241108110404.18317-1-haijie1@huawei.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-Originating-IP: [10.28.79.22] X-ClientProxiedBy: dggems703-chm.china.huawei.com (10.3.19.180) To kwepemf500004.china.huawei.com (7.202.181.242) 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: 103809d032cd ("app/test-fib: add test application for FIB") Signed-off-by: Jie Hai Acked-by: Chengwen Feng --- app/test-fib/main.c | 11 ++++++----- 1 file changed, 6 insertions(+), 5 deletions(-) diff --git a/app/test-fib/main.c b/app/test-fib/main.c index 6479f48cdf6c..11810a1a80a8 100644 --- a/app/test-fib/main.c +++ b/app/test-fib/main.c @@ -17,6 +17,7 @@ #include #include #include +#include #define PRINT_USAGE_START "%s [EAL options] --\n" @@ -204,9 +205,9 @@ parse_distrib(uint8_t depth_lim, const uint32_t n) uint32_t nrpd[128 + 1] = {0}; /* number of routes per depth */ uint32_t n_routes; uint8_t depth, ratio, ratio_acc = 0; - char *in; + char *in, *sp = NULL; - in = strtok(distrib_string, ","); + in = strtok_r(distrib_string, ",", &sp); /*parse configures routes percentage ratios*/ while (in != NULL) { @@ -246,7 +247,7 @@ parse_distrib(uint8_t depth_lim, const uint32_t n) } /*number of configured depths in*/ - in = strtok(NULL, ","); + in = strtok_r(NULL, ",", &sp); } if (ratio_acc > 100) { @@ -522,10 +523,10 @@ parse_lookup(FILE *f, int af) int ret, i = 0; uint8_t *tbl = (uint8_t *)config.lookup_tbl; int step = (af == AF_INET) ? 4 : 16; - char *s; + char *s, *sp = NULL; while (fgets(line, sizeof(line), f) != NULL) { - s = strtok(line, " \t\n"); + s = strtok_r(line, " \t\n", &sp); if (s == NULL) return -EINVAL; ret = inet_pton(af, s, &tbl[i]); -- 2.22.0