From patchwork Mon Oct 19 23:13:24 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christian Schoenebeck X-Patchwork-Id: 270951 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=-9.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH, MAILING_LIST_MULTI, SIGNED_OFF_BY, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED 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 56700C433E7 for ; Mon, 19 Oct 2020 23:47:26 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id ACEF12225F for ; Mon, 19 Oct 2020 23:47:25 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=crudebyte.com header.i=@crudebyte.com header.b="YvfBnelb" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org ACEF12225F Authentication-Results: mail.kernel.org; dmarc=fail (p=quarantine dis=none) header.from=crudebyte.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:54678 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1kUes8-0006oS-Mw for qemu-devel@archiver.kernel.org; Mon, 19 Oct 2020 19:47:24 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:47950) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kUekA-00075h-FY for qemu-devel@nongnu.org; Mon, 19 Oct 2020 19:39:10 -0400 Received: from lizzy.crudebyte.com ([91.194.90.13]:56165) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1kUek8-0002T8-P4 for qemu-devel@nongnu.org; Mon, 19 Oct 2020 19:39:10 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=crudebyte.com; s=lizzy; h=Cc:To:Subject:Date:From:References:In-Reply-To: Message-Id:Content-Type:Content-Transfer-Encoding:MIME-Version:Content-ID: Content-Description; bh=vA3i8SPVfAVvIXbvf5MMFPnqoVqWzTlxfDM9uLSyPg4=; b=YvfBn elb92ps34Lj7d7G4bK6adeNhWk1MIWmt1UoIwlpjsiUXErdmxPgpCj4h79xyKDqtpG5kfAQszBGfZ zXmfiV62VK4KLTEqWk3bTGpNt3mLnalWlhgwbdipD9r8ds15sI1rtB4fOfdkXD3AVIpcPEkVUTH2u J/YO7Avv6A9ZzDRHfV7B6KgzDTGsoL7KRQgWQlqysEAUzUm3z1kNvIcZ+9WvbDfet/eT5ykl7dx7H EmXygE1T1zKFTu6wOxeFVutAOf6ihNeQ5u+oxiFmbcYPMY8e3RqEBi1G+c0I+ffPYsC+vNdQw1DVE h55LRIUmkak3wxcU84XVKgDAbMCnA==; Message-Id: In-Reply-To: References: From: Christian Schoenebeck Date: Tue, 20 Oct 2020 01:13:24 +0200 Subject: [PATCH 7/8] tests/9pfs: add local Tlink test To: qemu-devel@nongnu.org Cc: Greg Kurz Received-SPF: none client-ip=91.194.90.13; envelope-from=ee6d9e1147d05bcf0b51b02ef6757f4b4691ba2d@lizzy.crudebyte.com; helo=lizzy.crudebyte.com X-detected-operating-system: by eggs.gnu.org: First seen = 2020/10/19 19:37:26 X-ACL-Warn: Detected OS = Linux 2.2.x-3.x [generic] [fuzzy] X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" This test case uses a Tlink request to create a hard link to a regular file using the 9pfs 'local' fs driver. Signed-off-by: Christian Schoenebeck --- tests/qtest/virtio-9p-test.c | 61 ++++++++++++++++++++++++++++++++++++ 1 file changed, 61 insertions(+) diff --git a/tests/qtest/virtio-9p-test.c b/tests/qtest/virtio-9p-test.c index f7d18f6274..447d8e3344 100644 --- a/tests/qtest/virtio-9p-test.c +++ b/tests/qtest/virtio-9p-test.c @@ -260,6 +260,7 @@ static const char *rmessage_name(uint8_t id) id == P9_RMKDIR ? "RMKDIR" : id == P9_RLCREATE ? "RLCREATE" : id == P9_RSYMLINK ? "RSYMLINK" : + id == P9_RLINK ? "RLINK" : id == P9_RUNLINKAT ? "RUNLINKAT" : id == P9_RFLUSH ? "RFLUSH" : id == P9_RREADDIR ? "READDIR" : @@ -742,6 +743,33 @@ static void v9fs_rsymlink(P9Req *req, v9fs_qid *qid) v9fs_req_free(req); } +/* size[4] Tlink tag[2] dfid[4] fid[4] name[s] */ +static P9Req *v9fs_tlink(QVirtio9P *v9p, uint32_t dfid, uint32_t fid, + const char *name, uint16_t tag) +{ + P9Req *req; + + uint32_t body_size = 4 + 4; + uint16_t string_size = v9fs_string_size(name); + + g_assert_cmpint(body_size, <=, UINT32_MAX - string_size); + body_size += string_size; + + req = v9fs_req_init(v9p, body_size, P9_TLINK, tag); + v9fs_uint32_write(req, dfid); + v9fs_uint32_write(req, fid); + v9fs_string_write(req, name); + v9fs_req_send(req); + return req; +} + +/* size[4] Rlink tag[2] */ +static void v9fs_rlink(P9Req *req) +{ + v9fs_req_recv(req, P9_RLINK); + v9fs_req_free(req); +} + /* size[4] Tunlinkat tag[2] dirfd[4] name[s] flags[4] */ static P9Req *v9fs_tunlinkat(QVirtio9P *v9p, uint32_t dirfd, const char *name, uint32_t flags, uint16_t tag) @@ -1318,6 +1346,38 @@ static void fs_unlinkat_symlink(void *obj, void *data, g_free(real_file); } +static void fs_hardlink_file(void *obj, void *data, QGuestAllocator *t_alloc) +{ + QVirtio9P *v9p = obj; + P9Req *req; + uint32_t dfid, fid; + struct stat st_real, st_link; + char *real_file = virtio_9p_test_path("07/real_file"); + char *hardlink_file = virtio_9p_test_path("07/hardlink_file"); + + fs_attach(v9p, NULL, t_alloc); + fs_mkdir(v9p, data, t_alloc, "/", "07"); + fid = fs_lcreate(v9p, data, t_alloc, "07", "real_file"); + g_assert(stat(real_file, &st_real) == 0); + g_assert((st_real.st_mode & S_IFMT) == S_IFREG); + + dfid = fs_walk_fid(v9p, data, t_alloc, "07"); + + req = v9fs_tlink(v9p, dfid, fid, "hardlink_file", 0); + v9fs_req_wait_for_reply(req, NULL); + v9fs_rlink(req); + + /* check if link exists now ... */ + g_assert(stat(hardlink_file, &st_link) == 0); + /* ... and it's a hard link, right? */ + g_assert((st_link.st_mode & S_IFMT) == S_IFREG); + g_assert(st_link.st_dev == st_real.st_dev); + g_assert(st_link.st_ino == st_real.st_ino); + + g_free(hardlink_file); + g_free(real_file); +} + static void *assign_9p_local_driver(GString *cmd_line, void *arg) { virtio_9p_assign_local_driver(cmd_line, "security_model=mapped-xattr"); @@ -1363,6 +1423,7 @@ static void register_virtio_9p_test(void) qos_add_test("local/unlinkat_file", "virtio-9p", fs_unlinkat_file, &opts); qos_add_test("local/symlink_file", "virtio-9p", fs_symlink_file, &opts); qos_add_test("local/unlinkat_symlink", "virtio-9p", fs_unlinkat_symlink, &opts); + qos_add_test("local/hardlink_file", "virtio-9p", fs_hardlink_file, &opts); } libqos_init(register_virtio_9p_test);