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 E2D9D45D7C; Fri, 22 Nov 2024 12:12:36 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 39471433B2; Fri, 22 Nov 2024 12:11:49 +0100 (CET) Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by mails.dpdk.org (Postfix) with ESMTP id 917484338B for ; Fri, 22 Nov 2024 12:11:40 +0100 (CET) Received: from mail.maildlp.com (unknown [172.19.163.48]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4XvsnC0zk1z10WSt; Fri, 22 Nov 2024 19:09:35 +0800 (CST) Received: from kwepemf500004.china.huawei.com (unknown [7.202.181.242]) by mail.maildlp.com (Postfix) with ESMTPS id 386AD18007C; Fri, 22 Nov 2024 19:11:39 +0800 (CST) Received: from localhost.localdomain (10.90.30.45) 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, 22 Nov 2024 19:11:38 +0800 From: Jie Hai To: , , , Chengwen Feng , Kevin Laatz , Bruce Richardson , Conor Walsh , Sean Morrissey CC: , , Subject: [PATCH v6 08/25] dmadev: replace strtok with reentrant version Date: Fri, 22 Nov 2024 19:04:40 +0800 Message-ID: <20241122110458.2156907-9-haijie1@huawei.com> X-Mailer: git-send-email 2.30.0 In-Reply-To: <20241122110458.2156907-1-haijie1@huawei.com> References: <20231113104550.2138654-1-haijie1@huawei.com> <20241122110458.2156907-1-haijie1@huawei.com> MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit X-Originating-IP: [10.90.30.45] 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: 39b5ab60df30 ("dmadev: add telemetry") Signed-off-by: Jie Hai Acked-by: Chengwen Feng Acked-by: Morten Brørup --- lib/dmadev/rte_dmadev.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/lib/dmadev/rte_dmadev.c b/lib/dmadev/rte_dmadev.c index 8bb7824aa129..eaf649e7d982 100644 --- a/lib/dmadev/rte_dmadev.c +++ b/lib/dmadev/rte_dmadev.c @@ -14,6 +14,7 @@ #include #include #include +#include #include "rte_dmadev.h" #include "rte_dmadev_pmd.h" @@ -1016,7 +1017,7 @@ dmadev_handle_dev_stats(const char *cmd __rte_unused, struct rte_dma_info dma_info; struct rte_dma_stats dma_stats; int dev_id, ret, vchan_id; - char *end_param; + char *end_param, *sp = NULL; const char *vchan_param; if (params == NULL || strlen(params) == 0 || !isdigit(*params)) @@ -1035,7 +1036,7 @@ dmadev_handle_dev_stats(const char *cmd __rte_unused, if (dma_info.nb_vchans == 1 && *end_param == '\0') vchan_id = 0; else { - vchan_param = strtok(end_param, ","); + vchan_param = strtok_r(end_param, ",", &sp); if (!vchan_param || strlen(vchan_param) == 0 || !isdigit(*vchan_param)) return -EINVAL; -- 2.33.0