From patchwork Tue Nov 26 13:54:34 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Jorik Cronenberg X-Patchwork-Id: 1201064 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@bilbo.ozlabs.org Authentication-Results: ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=lists.linux.it (client-ip=213.254.12.146; helo=picard.linux.it; envelope-from=ltp-bounces+incoming=patchwork.ozlabs.org@lists.linux.it; receiver=) Authentication-Results: ozlabs.org; dmarc=none (p=none dis=none) header.from=suse.de Received: from picard.linux.it (picard.linux.it [213.254.12.146]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits)) (No client certificate requested) by ozlabs.org (Postfix) with ESMTPS id 47Mllm115zz9sRC for ; Wed, 27 Nov 2019 00:55:15 +1100 (AEDT) Received: from picard.linux.it (localhost [IPv6:::1]) by picard.linux.it (Postfix) with ESMTP id EEE963C22D8 for ; Tue, 26 Nov 2019 14:55:11 +0100 (CET) X-Original-To: ltp@lists.linux.it Delivered-To: ltp@picard.linux.it Received: from in-2.smtp.seeweb.it (in-2.smtp.seeweb.it [217.194.8.2]) by picard.linux.it (Postfix) with ESMTP id DC6D23C1D56 for ; Tue, 26 Nov 2019 14:55:09 +0100 (CET) Received: from mx1.suse.de (mx2.suse.de [195.135.220.15]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by in-2.smtp.seeweb.it (Postfix) with ESMTPS id D80DC6018AB for ; Tue, 26 Nov 2019 14:55:08 +0100 (CET) Received: from relay2.suse.de (unknown [195.135.220.254]) by mx1.suse.de (Postfix) with ESMTP id EFEC5B258 for ; Tue, 26 Nov 2019 13:55:07 +0000 (UTC) From: Jorik Cronenberg To: ltp@lists.linux.it Date: Tue, 26 Nov 2019 14:54:34 +0100 Message-Id: <20191126135434.3196-1-jcronenberg@suse.de> X-Mailer: git-send-email 2.24.0 MIME-Version: 1.0 X-Virus-Scanned: clamav-milter 0.99.2 at in-2.smtp.seeweb.it X-Virus-Status: Clean X-Spam-Status: No, score=0.0 required=7.0 tests=SPF_HELO_NONE,SPF_PASS autolearn=disabled version=3.4.0 X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on in-2.smtp.seeweb.it Subject: [LTP] [PATCH] Add vmsplice03 test X-BeenThere: ltp@lists.linux.it X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux Test Project List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: ltp-bounces+incoming=patchwork.ozlabs.org@lists.linux.it Sender: "ltp" From: jcronenberg Add a test for splicing from a pipe to user memory. Signed-off-by: Jorik Cronenberg --- testcases/kernel/syscalls/vmsplice/.gitignore | 1 + .../kernel/syscalls/vmsplice/vmsplice03.c | 70 +++++++++++++++++++ 2 files changed, 71 insertions(+) create mode 100644 testcases/kernel/syscalls/vmsplice/vmsplice03.c diff --git a/testcases/kernel/syscalls/vmsplice/.gitignore b/testcases/kernel/syscalls/vmsplice/.gitignore index 2cc74a956..03922073c 100644 --- a/testcases/kernel/syscalls/vmsplice/.gitignore +++ b/testcases/kernel/syscalls/vmsplice/.gitignore @@ -1,2 +1,3 @@ /vmsplice01 /vmsplice02 +/vmsplice03 diff --git a/testcases/kernel/syscalls/vmsplice/vmsplice03.c b/testcases/kernel/syscalls/vmsplice/vmsplice03.c new file mode 100644 index 000000000..54dace1b6 --- /dev/null +++ b/testcases/kernel/syscalls/vmsplice/vmsplice03.c @@ -0,0 +1,70 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Copyright (c) 2019 SUSE LLC + * Author: Jorik Cronenberg + * + * Test vmsplice() from a pipe into user memory + */ + +#define _GNU_SOURCE + +#include "tst_test.h" +#include "lapi/fcntl.h" +#include "lapi/vmsplice.h" + + +#define TEST_BLOCK_SIZE (64*1024) /* 64K */ + +static char buffer[TEST_BLOCK_SIZE]; +static off64_t offset; + +static void vmsplice_test(void) +{ + int written, i; + int pipes[2]; + struct iovec iov; + char arr_write[TEST_BLOCK_SIZE]; + char *arr_read; + + iov.iov_base = arr_write; + iov.iov_len = TEST_BLOCK_SIZE; + offset = sizeof(struct iovec); + + SAFE_PIPE(pipes); + SAFE_WRITE(1, pipes[1], buffer, TEST_BLOCK_SIZE); + written = vmsplice(pipes[0], &iov, 1, 0); + arr_read = (char *)&iov; + + if (written < 0) + tst_brk(TBROK | TERRNO, "vmsplice() failed"); + else if (written == 0) + tst_res(TFAIL, "vmsplice() didn't write anything"); + else { + for (i = 0; i < written; i++) { + if (arr_read[i+offset] != buffer[i]) { + tst_res(TFAIL, + "Wrong data in user memory at %i", i); + break; + } + } + if (i == written) + tst_res(TPASS, "Spliced correctly into user memory"); + } + + SAFE_CLOSE(pipes[1]); + SAFE_CLOSE(pipes[0]); +} + +static void setup(void) +{ + int i; + + for (i = 0; i < TEST_BLOCK_SIZE; i++) + buffer[i] = i & 0xff; +} + +static struct tst_test test = { + .setup = setup, + .test_all = vmsplice_test, + .min_kver = "2.6.23", +};