From patchwork Wed Jun 26 10:51:57 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Slavomir Kaslev X-Patchwork-Id: 11017439 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 7AA2E14C0 for ; Wed, 26 Jun 2019 10:52:23 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 66F6B28723 for ; Wed, 26 Jun 2019 10:52:23 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 5B93C2872E; Wed, 26 Jun 2019 10:52:23 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FROM,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id D5B2D28723 for ; Wed, 26 Jun 2019 10:52:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726946AbfFZKwV (ORCPT ); Wed, 26 Jun 2019 06:52:21 -0400 Received: from mail-wr1-f65.google.com ([209.85.221.65]:46418 "EHLO mail-wr1-f65.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726131AbfFZKwV (ORCPT ); Wed, 26 Jun 2019 06:52:21 -0400 Received: by mail-wr1-f65.google.com with SMTP id n4so2137310wrw.13 for ; Wed, 26 Jun 2019 03:52:19 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=xxLCk7/1n3pRcs/scqet11MZA1mX/44RCBDQLxSkr/g=; b=kNsxmaEB4p8JnWAAqU1lghnjJqntlgeGaQJTULt8wsnZCWuAZGbjPf+wlMBumwga/s YfOT7H/CuttAvbfSk9pq4GcS/bSy2NgI9O1Zrebk6ESFlgHjt39dcpuRvO6dzE0j2oxZ aOUmy2VtiENc2bLgUOuUKUnyqz9r7LEHNshzm78dHqreXmBcHjRaKty+R/Kpkq+4vCo/ c1uLdZ61vD+6vIC6uwAQ8XRRlTl0ys5wuxY2mKAmAjwIfiMtHvAwi6ydNrwu2jQqKdiF rlTtHG8q9kqF1+Mv7nksO1XQuNGRHjPIevCDCjdAYS/O4iKGsFvcT0+2LXTrvf0MDusc Iuaw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=xxLCk7/1n3pRcs/scqet11MZA1mX/44RCBDQLxSkr/g=; b=oBx3JcUfCbYx0HYKVs+Z6u+yFAy7w97TYjiNUhEm0I5CnsLcNCORMNWdRzYCwj2fB1 MTW5MBvgQLRSy+OmFtL6S3mXHi1EXU5yuA80btHBd72qTZsq0Y/Vn7S5KYGCUzPKyNHO OADF8IGi7Eo8zMemJ5Guh3dsUKkwjdksy7XiMoIzZn5s9omzCOldeE3ngDM0VT/0OO0l h5Keuh8BZBY3TRDYYpKOkYlR+VYMR7tw5yGp8fVUuRbF0t1ninb0OY9gf40t/nx+JZtf iYC6DFTOdMJ58wABsp7eUiV99ud8EVoyDz9t4a0b79LKT1MdAx5Gh5eYRt4aBmDaVOCp sMdQ== X-Gm-Message-State: APjAAAXtcFPVMKdkwwJUm0ny66tMSG+48Ws0HIxlbhAy/6mpdDdm+1ny uU721jfEb2msdu3ffhEmF8bAJnLWng== X-Google-Smtp-Source: APXvYqx5fSjqjUShYq1IjqPL7V8p7gGi+Ij/O6RfAS24CyN4NYQdlOgcg6E5iYRyDbtkGSELFeFkXg== X-Received: by 2002:adf:fec9:: with SMTP id q9mr3333459wrs.241.1561546338443; Wed, 26 Jun 2019 03:52:18 -0700 (PDT) Received: from box.eng.vmware.com ([146.247.46.5]) by smtp.gmail.com with ESMTPSA id s10sm15456929wrt.49.2019.06.26.03.52.17 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Wed, 26 Jun 2019 03:52:17 -0700 (PDT) From: "Slavomir Kaslev (VMware)" To: rostedt@goodmis.org Cc: linux-trace-devel@vger.kernel.org Subject: [PATCH v13 01/13] trace-cmd: Make ports unsigned int Date: Wed, 26 Jun 2019 13:51:57 +0300 Message-Id: <20190626105209.13200-2-slavomir.kaslev@gmail.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190626105209.13200-1-slavomir.kaslev@gmail.com> References: <20190626105209.13200-1-slavomir.kaslev@gmail.com> MIME-Version: 1.0 Sender: linux-trace-devel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-trace-devel@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Slavomir Kaslev Switch ports data type to unsigned int since vsocket ports are 32 bit unsigned integers and sometimes cause overflow when stored in int variables. Signed-off-by: Slavomir Kaslev --- include/trace-cmd/trace-cmd.h | 2 +- tracecmd/trace-listen.c | 10 +++++----- tracecmd/trace-msg.c | 32 ++++++++++++++++++++++---------- 3 files changed, 28 insertions(+), 16 deletions(-) diff --git a/include/trace-cmd/trace-cmd.h b/include/trace-cmd/trace-cmd.h index 6f62ab9..923015e 100644 --- a/include/trace-cmd/trace-cmd.h +++ b/include/trace-cmd/trace-cmd.h @@ -328,7 +328,7 @@ int tracecmd_msg_wait_close(struct tracecmd_msg_handle *msg_handle); /* for server */ int tracecmd_msg_initial_setting(struct tracecmd_msg_handle *msg_handle); int tracecmd_msg_send_port_array(struct tracecmd_msg_handle *msg_handle, - int *ports); + unsigned *ports); int tracecmd_msg_read_data(struct tracecmd_msg_handle *msg_handle, int ofd); int tracecmd_msg_collect_data(struct tracecmd_msg_handle *msg_handle, int ofd); bool tracecmd_msg_done(struct tracecmd_msg_handle *msg_handle); diff --git a/tracecmd/trace-listen.c b/tracecmd/trace-listen.c index 3106022..e34df08 100644 --- a/tracecmd/trace-listen.c +++ b/tracecmd/trace-listen.c @@ -517,10 +517,10 @@ static int *create_all_readers(const char *node, const char *port, { int use_tcp = msg_handle->flags & TRACECMD_MSG_FL_USE_TCP; char buf[BUFSIZ]; - int *port_array; + unsigned int *port_array; int *pid_array; - int start_port; - int udp_port; + unsigned int start_port; + unsigned int udp_port; int cpus = msg_handle->cpu_count; int cpu; int pid; @@ -528,11 +528,11 @@ static int *create_all_readers(const char *node, const char *port, if (!pagesize) return NULL; - port_array = malloc(sizeof(int) * cpus); + port_array = malloc(sizeof(*port_array) * cpus); if (!port_array) return NULL; - pid_array = malloc(sizeof(int) * cpus); + pid_array = malloc(sizeof(*pid_array) * cpus); if (!pid_array) { free(port_array); return NULL; diff --git a/tracecmd/trace-msg.c b/tracecmd/trace-msg.c index e2dd188..74c0bc1 100644 --- a/tracecmd/trace-msg.c +++ b/tracecmd/trace-msg.c @@ -161,12 +161,26 @@ static int make_tinit(struct tracecmd_msg_handle *msg_handle, return 0; } -static int write_ints(char *buf, size_t buf_len, int *arr, int arr_len) +/* test a to u */ +static int tatou(const char *s, unsigned int *res) +{ + long r; + + r = atol(s); + if (r >= 0 && r <= UINT_MAX) { + *res = (unsigned int)r; + return 0; + } + return -1; +} + +static int write_uints(char *buf, size_t buf_len, + unsigned int *arr, int arr_len) { int i, ret, tot = 0; for (i = 0; i < arr_len; i++) { - ret = snprintf(buf, buf_len, "%d", arr[i]); + ret = snprintf(buf, buf_len, "%u", arr[i]); if (ret < 0) return ret; @@ -184,15 +198,15 @@ static int write_ints(char *buf, size_t buf_len, int *arr, int arr_len) return tot; } -static int make_rinit(struct tracecmd_msg *msg, int cpus, int *ports) +static int make_rinit(struct tracecmd_msg *msg, int cpus, unsigned int *ports) { int data_size; - data_size = write_ints(NULL, 0, ports, cpus); + data_size = write_uints(NULL, 0, ports, cpus); msg->buf = malloc(data_size); if (!msg->buf) return -ENOMEM; - write_ints(msg->buf, data_size, ports, cpus); + write_uints(msg->buf, data_size, ports, cpus); msg->rinit.cpus = htonl(cpus); msg->hdr.size = htonl(ntohl(msg->hdr.size) + data_size); @@ -442,7 +456,7 @@ int tracecmd_msg_send_init_data(struct tracecmd_msg_handle *msg_handle, } cpus = ntohl(msg.rinit.cpus); - ports = malloc_or_die(sizeof(*ports) * cpus); + ports = malloc(sizeof(*ports) * cpus); if (!ports) { ret = -ENOMEM; goto out; @@ -450,13 +464,11 @@ int tracecmd_msg_send_init_data(struct tracecmd_msg_handle *msg_handle, buf_end = msg.buf + buf_len; for (i = 0, p = msg.buf; i < cpus; i++, p++) { - if (p >= buf_end) { + if (p >= buf_end || tatou(p, &ports[i])) { free(ports); ret = -EINVAL; goto error; } - - ports[i] = atoi(p); p = strchr(p, '\0'); } @@ -588,7 +600,7 @@ error: } int tracecmd_msg_send_port_array(struct tracecmd_msg_handle *msg_handle, - int *ports) + unsigned int *ports) { struct tracecmd_msg msg; int ret;