From patchwork Fri Jun 18 20:25:03 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jakub Kicinski X-Patchwork-Id: 463357 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-19.2 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 83D2CC48BE8 for ; Fri, 18 Jun 2021 20:25:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5AF6561284 for ; Fri, 18 Jun 2021 20:25:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231128AbhFRU1R (ORCPT ); Fri, 18 Jun 2021 16:27:17 -0400 Received: from mail.kernel.org ([198.145.29.99]:47724 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230136AbhFRU1R (ORCPT ); Fri, 18 Jun 2021 16:27:17 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 160036120A; Fri, 18 Jun 2021 20:25:07 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1624047907; bh=XiTs7KUeIa+gqd8IQz39teUm63HsJV+VbkBe6WB373g=; h=From:To:Cc:Subject:Date:From; b=d2MUmgosmvlOWjOON8N41jn935HiNyc7STn4c/OrFBNPO7/2D/E2TYrYPOGP/eZG9 mBguzf7WBNC9mcqvCebR+vnLlD9BcHlfXZHSqObY6R91dszQshSY8N11nNg2GZc0yp yi3WJFYcE6VYUMGCMZ92FPyVQLkSh4cnNaXG92m0THYRVaoqrn+44LRHBowxfbRrW4 MgkqtemHM6+PaX4uVsKsLVF58FoOU5xCVk2b6+VRnQ/PlAe7+z+DM78qC8Nosg0t05 XXH8rxdUYq76oYGSbArMR0LFNAeHLHWOBhjDHoCP4hFE7o5xAqsGMeyh8cdL4xO0bW 5MZHC0QAm6pPg== From: Jakub Kicinski To: davem@davemloft.net Cc: netdev@vger.kernel.org, linux-kselftest@vger.kernel.org, shuah@kernel.org, vfedorenko@novek.ru, Jakub Kicinski Subject: [PATCH net 1/2] selftests: tls: clean up uninitialized warnings Date: Fri, 18 Jun 2021 13:25:03 -0700 Message-Id: <20210618202504.1435179-1-kuba@kernel.org> X-Mailer: git-send-email 2.31.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kselftest@vger.kernel.org A bunch of tests uses uninitialized stack memory as random data to send. This is harmless but generates compiler warnings. Explicitly init the buffers with random data. Signed-off-by: Jakub Kicinski Acked-by: Vadim Fedorenko --- tools/testing/selftests/net/tls.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/tools/testing/selftests/net/tls.c b/tools/testing/selftests/net/tls.c index 426d07875a48..58fea6eb588d 100644 --- a/tools/testing/selftests/net/tls.c +++ b/tools/testing/selftests/net/tls.c @@ -25,6 +25,18 @@ #define TLS_PAYLOAD_MAX_LEN 16384 #define SOL_TLS 282 +static void memrnd(void *s, size_t n) +{ + int *dword = s; + char *byte; + + for (; n >= 4; n -= 4) + *dword++ = rand(); + byte = (void *)dword; + while (n--) + *byte++ = rand(); +} + FIXTURE(tls_basic) { int fd, cfd; @@ -308,6 +320,8 @@ TEST_F(tls, recv_max) char recv_mem[TLS_PAYLOAD_MAX_LEN]; char buf[TLS_PAYLOAD_MAX_LEN]; + memrnd(buf, sizeof(buf)); + EXPECT_GE(send(self->fd, buf, send_len, 0), 0); EXPECT_NE(recv(self->cfd, recv_mem, send_len, 0), -1); EXPECT_EQ(memcmp(buf, recv_mem, send_len), 0); @@ -588,6 +602,8 @@ TEST_F(tls, recvmsg_single_max) struct iovec vec; struct msghdr hdr; + memrnd(send_mem, sizeof(send_mem)); + EXPECT_EQ(send(self->fd, send_mem, send_len, 0), send_len); vec.iov_base = (char *)recv_mem; vec.iov_len = TLS_PAYLOAD_MAX_LEN; @@ -610,6 +626,8 @@ TEST_F(tls, recvmsg_multiple) struct msghdr hdr; int i; + memrnd(buf, sizeof(buf)); + EXPECT_EQ(send(self->fd, buf, send_len, 0), send_len); for (i = 0; i < msg_iovlen; i++) { iov_base[i] = (char *)malloc(iov_len); @@ -634,6 +652,8 @@ TEST_F(tls, single_send_multiple_recv) char send_mem[TLS_PAYLOAD_MAX_LEN * 2]; char recv_mem[TLS_PAYLOAD_MAX_LEN * 2]; + memrnd(send_mem, sizeof(send_mem)); + EXPECT_GE(send(self->fd, send_mem, total_len, 0), 0); memset(recv_mem, 0, total_len);