From patchwork Tue Nov 14 10:59:45 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jie Hai X-Patchwork-Id: 134258 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 BEA8043329; Tue, 14 Nov 2023 12:10:03 +0100 (CET) Received: from mails.dpdk.org (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 415E1402ED; Tue, 14 Nov 2023 12:09:59 +0100 (CET) Received: from szxga02-in.huawei.com (szxga02-in.huawei.com [45.249.212.188]) by mails.dpdk.org (Postfix) with ESMTP id BC9C34027D for ; Tue, 14 Nov 2023 12:09:55 +0100 (CET) Received: from kwepemd100004.china.huawei.com (unknown [172.30.72.53]) by szxga02-in.huawei.com (SkyGuard) with ESMTP id 4SV3Tk4hbBzWhH1; Tue, 14 Nov 2023 19:09:30 +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 19:09:51 +0800 From: Jie Hai To: , Sunil Kumar Kori , Rakesh Kudurumalla , Nithin Dabilpuram , Jerin Jacob CC: , , Subject: [PATCH v3 01/22] app/graph: replace strtok with reentrant version Date: Tue, 14 Nov 2023 18:59:45 +0800 Message-ID: <20231114110006.91148-2-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: 5c59002a34f3 ("app/graph: add graph commands") Fixes: 984a315a5804 ("app/graph: add parser utility") Cc: stable@dpdk.org Signed-off-by: Jie Hai Acked-by: Chengwen Feng --- app/graph/graph.c | 5 +++-- app/graph/utils.c | 15 +++++++++------ 2 files changed, 12 insertions(+), 8 deletions(-) diff --git a/app/graph/graph.c b/app/graph/graph.c index a65723a196da..316950948160 100644 --- a/app/graph/graph.c +++ b/app/graph/graph.c @@ -103,9 +103,10 @@ parser_usecases_read(char *usecases) { bool valid = false; uint32_t i, j = 0; + char *sp = NULL; char *token; - token = strtok(usecases, ","); + token = strtok_r(usecases, ",", &sp); while (token != NULL) { for (i = 0; i < RTE_DIM(supported_usecases); i++) { if (strcmp(supported_usecases[i], token) == 0) { @@ -116,7 +117,7 @@ parser_usecases_read(char *usecases) break; } } - token = strtok(NULL, ","); + token = strtok_r(NULL, ",", &sp); } return valid; diff --git a/app/graph/utils.c b/app/graph/utils.c index c7b6ae83cf1f..ae2ff225c394 100644 --- a/app/graph/utils.c +++ b/app/graph/utils.c @@ -101,13 +101,14 @@ int parser_ip4_read(uint32_t *value, char *p) { uint8_t shift = 24; + char *sp = NULL; uint32_t ip = 0; char *token; - token = strtok(p, "."); + token = strtok_r(p, ".", &sp); while (token != NULL) { ip |= (((uint32_t)strtoul(token, NULL, 10)) << shift); - token = strtok(NULL, "."); + token = strtok_r(NULL, ".", &sp); shift -= 8; } @@ -120,13 +121,14 @@ int parser_ip6_read(uint8_t *value, char *p) { uint64_t val = 0; + char *sp = NULL; char *token; - token = strtok(p, ":"); + token = strtok_r(p, ":", &sp); while (token != NULL) { hex_string_to_uint64(&val, token); *value = val; - token = strtok(NULL, ":"); + token = strtok_r(NULL, ":", &sp); value++; val = 0; } @@ -139,13 +141,14 @@ parser_mac_read(uint64_t *value, char *p) { uint64_t mac = 0, val = 0; uint8_t shift = 40; + char *sp = NULL; char *token; - token = strtok(p, ":"); + token = strtok_r(p, ":", &sp); while (token != NULL) { hex_string_to_uint64(&val, token); mac |= val << shift; - token = strtok(NULL, ":"); + token = strtok_r(NULL, ":", &sp); shift -= 8; val = 0; }