From patchwork Tue Nov 14 10:59:50 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jie Hai X-Patchwork-Id: 134260 X-Patchwork-Delegate: david.marchand@redhat.com Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 6FE7E43329; Tue, 14 Nov 2023 12:10:15 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 916884067D; Tue, 14 Nov 2023 12:10:01 +0100 (CET) Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by mails.dpdk.org (Postfix) with ESMTP id 471CF4027B for ; Tue, 14 Nov 2023 12:09:56 +0100 (CET) Received: from kwepemd100004.china.huawei.com (unknown [172.30.72.53]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4SV3Tn2sYKzWhLp for ; Tue, 14 Nov 2023 19:09:33 +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: , Vladimir Medvedkin CC: , , Subject: [PATCH v3 06/22] app/test-fib: replace strtok with reentrant version Date: Tue, 14 Nov 2023 18:59:50 +0800 Message-ID: <20231114110006.91148-7-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 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: 103809d032cd ("app/test-fib: add test application for FIB") Cc: stable@dpdk.org Signed-off-by: Jie Hai Acked-by: Chengwen Feng --- app/test-fib/main.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/app/test-fib/main.c b/app/test-fib/main.c index 75a56135f212..8e5d17b13028 100644 --- a/app/test-fib/main.c +++ b/app/test-fib/main.c @@ -223,9 +223,9 @@ 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) { @@ -265,7 +265,7 @@ 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) { @@ -542,10 +542,10 @@ 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]);