From patchwork Tue Nov 14 11:00:04 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jie Hai X-Patchwork-Id: 134277 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 83BD243329; Tue, 14 Nov 2023 12:12:04 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id DD4D440EE7; Tue, 14 Nov 2023 12:10:21 +0100 (CET) Received: from szxga01-in.huawei.com (szxga01-in.huawei.com [45.249.212.187]) by mails.dpdk.org (Postfix) with ESMTP id 68DA840698 for ; Tue, 14 Nov 2023 12:10:03 +0100 (CET) Received: from kwepemd100004.china.huawei.com (unknown [172.30.72.57]) by szxga01-in.huawei.com (SkyGuard) with ESMTP id 4SV3V25Mm5zvQWY; Tue, 14 Nov 2023 19:09:46 +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 19:10:01 +0800 From: Jie Hai To: , Akhil Goyal , Fan Zhang , Pablo de Lara CC: , , Subject: [PATCH v3 20/22] examples/l2fwd-crypto: replace strtok with reentrant version Date: Tue, 14 Nov 2023 19:00:04 +0800 Message-ID: <20231114110006.91148-21-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: ff5d5b01f8f2 ("examples/l2fwd-crypto: support AES-CCM") Cc: stable@dpdk.org Signed-off-by: Jie Hai Acked-by: Chengwen Feng --- examples/l2fwd-crypto/main.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/examples/l2fwd-crypto/main.c b/examples/l2fwd-crypto/main.c index efe7eea2a768..06e296776b95 100644 --- a/examples/l2fwd-crypto/main.c +++ b/examples/l2fwd-crypto/main.c @@ -1105,12 +1105,12 @@ static int parse_bytes(uint8_t *data, char *input_arg, uint16_t max_size) { unsigned byte_count; - char *token; + char *token, *sp = NULL; errno = 0; - for (byte_count = 0, token = strtok(input_arg, ":"); + for (byte_count = 0, token = strtok_r(input_arg, ":", &sp); (byte_count < max_size) && (token != NULL); - token = strtok(NULL, ":")) { + token = strtok_r(NULL, ":", &sp)) { int number = (int)strtol(token, NULL, 16);