From patchwork Sat Oct 7 17:21:37 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arseniy Krasnov X-Patchwork-Id: 13412460 X-Patchwork-Delegate: kuba@kernel.org Received: from lindbergh.monkeyblade.net (lindbergh.monkeyblade.net [23.128.96.19]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1C1BB31A9A for ; Sat, 7 Oct 2023 17:28:55 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=salutedevices.com header.i=@salutedevices.com header.b="tqrjglHr" Received: from mx1.sberdevices.ru (mx1.sberdevices.ru [37.18.73.165]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 2A614AC; Sat, 7 Oct 2023 10:28:50 -0700 (PDT) Received: from p-infra-ksmg-sc-msk01 (localhost [127.0.0.1]) by mx1.sberdevices.ru (Postfix) with ESMTP id B8436100009; Sat, 7 Oct 2023 20:28:48 +0300 (MSK) DKIM-Filter: OpenDKIM Filter v2.11.0 mx1.sberdevices.ru B8436100009 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=salutedevices.com; s=mail; t=1696699728; bh=BVnyD6Lt1FrFXSSQeHs6eVOE9pbjlICI2PT9aGf8hlo=; h=From:To:Subject:Date:Message-ID:MIME-Version:Content-Type:From; b=tqrjglHr42IoAWXjQI/Q0REFdqh91C+cqcfu38I4xxZYzVLr1bri+f4Sv5hcpBkO+ e8W9jXa0OsSPV8JJFXqFU1gxalY+KTTHTE47T9ES9T1phBPIfSYs/ypCYuJdn3WxnL u7zy+VhYtkXgoEaEIeCwQmA6RFZMaDI6Qyfutu6gI9s7XFAHHqjH6/Y5iWsLP7E0rE 544xOfoJ2a+ROlCCkd42DPEUQ5goNyWN8Rk4td2CP/6SVKwIItQ9UTIPxVAf5GEXJ0 DfVJXMdBpP6cxX8834qQxOvMxW8Cq3Wk2C44TWeSQIFNOCtR5mVMQ8CQoFNJJoCJZq nxZPmqlJL+6nw== Received: from p-i-exch-sc-m01.sberdevices.ru (p-i-exch-sc-m01.sberdevices.ru [172.16.192.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.sberdevices.ru (Postfix) with ESMTPS; Sat, 7 Oct 2023 20:28:48 +0300 (MSK) Received: from localhost.localdomain (100.64.160.123) by p-i-exch-sc-m01.sberdevices.ru (172.16.192.107) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1118.30; Sat, 7 Oct 2023 20:28:48 +0300 From: Arseniy Krasnov To: Stefan Hajnoczi , Stefano Garzarella , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , "Michael S. Tsirkin" , Jason Wang , Bobby Eshleman CC: , , , , , , Subject: [PATCH net-next v3 10/12] test/vsock: MSG_ZEROCOPY flag tests Date: Sat, 7 Oct 2023 20:21:37 +0300 Message-ID: <20231007172139.1338644-11-avkrasnov@salutedevices.com> X-Mailer: git-send-email 2.35.0 In-Reply-To: <20231007172139.1338644-1-avkrasnov@salutedevices.com> References: <20231007172139.1338644-1-avkrasnov@salutedevices.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Originating-IP: [100.64.160.123] X-ClientProxiedBy: p-i-exch-sc-m01.sberdevices.ru (172.16.192.107) To p-i-exch-sc-m01.sberdevices.ru (172.16.192.107) X-KSMG-Rule-ID: 10 X-KSMG-Message-Action: clean X-KSMG-AntiSpam-Lua-Profiles: 180453 [Oct 07 2023] X-KSMG-AntiSpam-Version: 6.0.0.2 X-KSMG-AntiSpam-Envelope-From: avkrasnov@salutedevices.com X-KSMG-AntiSpam-Rate: 0 X-KSMG-AntiSpam-Status: not_detected X-KSMG-AntiSpam-Method: none X-KSMG-AntiSpam-Auth: dkim=none X-KSMG-AntiSpam-Info: LuaCore: 535 535 da804c0ea8918f802fc60e7a20ba49783d957ba2, {Tracking_from_domain_doesnt_match_to}, salutedevices.com:7.1.1;100.64.160.123:7.1.2;p-i-exch-sc-m01.sberdevices.ru:7.1.1,5.0.1;d41d8cd98f00b204e9800998ecf8427e.com:7.1.1;127.0.0.199:7.1.2, FromAlignment: s, ApMailHostAddress: 100.64.160.123 X-MS-Exchange-Organization-SCL: -1 X-KSMG-AntiSpam-Interceptor-Info: scan successful X-KSMG-AntiPhishing: Clean X-KSMG-LinksScanning: Clean X-KSMG-AntiVirus: Kaspersky Secure Mail Gateway, version 2.0.1.6960, bases: 2023/10/07 16:48:00 #22085983 X-KSMG-AntiVirus-Status: Clean, skipped X-Spam-Status: No, score=-2.1 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,RCVD_IN_DNSWL_BLOCKED, SPF_HELO_NONE,SPF_NONE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net X-Patchwork-Delegate: kuba@kernel.org This adds three tests for MSG_ZEROCOPY feature: 1) SOCK_STREAM tx with different buffers. 2) SOCK_SEQPACKET tx with different buffers. 3) SOCK_STREAM test to read empty error queue of the socket. Patch also works as preparation for the next patches for tools in this patchset: vsock_perf and vsock_uring_test: 1) Adds several new functions to util.c - they will be also used by vsock_uring_test. 2) Adds two new functions for MSG_ZEROCOPY handling to a new header file - such header will be shared between vsock_test, vsock_perf and vsock_uring_test, thus avoiding code copy-pasting. Signed-off-by: Arseniy Krasnov --- Changelog: v1 -> v2: * Move 'SOL_VSOCK' and 'VSOCK_RECVERR' from 'util.c' to 'util.h'. v2 -> v3: * Patch was reworked. Now it is also preparation patch (see commit message). Shared stuff for 'vsock_perf' and tests is placed to a new header file, while shared code between current test tool and future uring test is placed to the 'util.c'. I think, that making this patch as preparation allows to reduce number of changes in the next patches in this patchset. * Make 'struct vsock_test_data' private by placing it to the .c file. Also add comments to this struct to clarify sense of its fields. tools/testing/vsock/Makefile | 2 +- tools/testing/vsock/msg_zerocopy_common.h | 92 ++++++ tools/testing/vsock/util.c | 110 +++++++ tools/testing/vsock/util.h | 5 + tools/testing/vsock/vsock_test.c | 16 + tools/testing/vsock/vsock_test_zerocopy.c | 367 ++++++++++++++++++++++ tools/testing/vsock/vsock_test_zerocopy.h | 15 + 7 files changed, 606 insertions(+), 1 deletion(-) create mode 100644 tools/testing/vsock/msg_zerocopy_common.h create mode 100644 tools/testing/vsock/vsock_test_zerocopy.c create mode 100644 tools/testing/vsock/vsock_test_zerocopy.h diff --git a/tools/testing/vsock/Makefile b/tools/testing/vsock/Makefile index 21a98ba565ab..1a26f60a596c 100644 --- a/tools/testing/vsock/Makefile +++ b/tools/testing/vsock/Makefile @@ -1,7 +1,7 @@ # SPDX-License-Identifier: GPL-2.0-only all: test vsock_perf test: vsock_test vsock_diag_test -vsock_test: vsock_test.o timeout.o control.o util.o +vsock_test: vsock_test.o vsock_test_zerocopy.o timeout.o control.o util.o vsock_diag_test: vsock_diag_test.o timeout.o control.o util.o vsock_perf: vsock_perf.o diff --git a/tools/testing/vsock/msg_zerocopy_common.h b/tools/testing/vsock/msg_zerocopy_common.h new file mode 100644 index 000000000000..ce89f1281584 --- /dev/null +++ b/tools/testing/vsock/msg_zerocopy_common.h @@ -0,0 +1,92 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +#ifndef MSG_ZEROCOPY_COMMON_H +#define MSG_ZEROCOPY_COMMON_H + +#include +#include +#include +#include +#include + +#ifndef SOL_VSOCK +#define SOL_VSOCK 287 +#endif + +#ifndef VSOCK_RECVERR +#define VSOCK_RECVERR 1 +#endif + +static void enable_so_zerocopy(int fd) +{ + int val = 1; + + if (setsockopt(fd, SOL_SOCKET, SO_ZEROCOPY, &val, sizeof(val))) { + perror("setsockopt"); + exit(EXIT_FAILURE); + } +} + +static void vsock_recv_completion(int fd, const bool *zerocopied) __maybe_unused; +static void vsock_recv_completion(int fd, const bool *zerocopied) +{ + struct sock_extended_err *serr; + struct msghdr msg = { 0 }; + char cmsg_data[128]; + struct cmsghdr *cm; + ssize_t res; + + msg.msg_control = cmsg_data; + msg.msg_controllen = sizeof(cmsg_data); + + res = recvmsg(fd, &msg, MSG_ERRQUEUE); + if (res) { + fprintf(stderr, "failed to read error queue: %zi\n", res); + exit(EXIT_FAILURE); + } + + cm = CMSG_FIRSTHDR(&msg); + if (!cm) { + fprintf(stderr, "cmsg: no cmsg\n"); + exit(EXIT_FAILURE); + } + + if (cm->cmsg_level != SOL_VSOCK) { + fprintf(stderr, "cmsg: unexpected 'cmsg_level'\n"); + exit(EXIT_FAILURE); + } + + if (cm->cmsg_type != VSOCK_RECVERR) { + fprintf(stderr, "cmsg: unexpected 'cmsg_type'\n"); + exit(EXIT_FAILURE); + } + + serr = (void *)CMSG_DATA(cm); + if (serr->ee_origin != SO_EE_ORIGIN_ZEROCOPY) { + fprintf(stderr, "serr: wrong origin: %u\n", serr->ee_origin); + exit(EXIT_FAILURE); + } + + if (serr->ee_errno) { + fprintf(stderr, "serr: wrong error code: %u\n", serr->ee_errno); + exit(EXIT_FAILURE); + } + + /* This flag is used for tests, to check that transmission was + * performed as expected: zerocopy or fallback to copy. If NULL + * - don't care. + */ + if (!zerocopied) + return; + + if (*zerocopied && (serr->ee_code & SO_EE_CODE_ZEROCOPY_COPIED)) { + fprintf(stderr, "serr: was copy instead of zerocopy\n"); + exit(EXIT_FAILURE); + } + + if (!*zerocopied && !(serr->ee_code & SO_EE_CODE_ZEROCOPY_COPIED)) { + fprintf(stderr, "serr: was zerocopy instead of copy\n"); + exit(EXIT_FAILURE); + } +} + +#endif /* MSG_ZEROCOPY_COMMON_H */ diff --git a/tools/testing/vsock/util.c b/tools/testing/vsock/util.c index 6779d5008b27..b1770edd8cc1 100644 --- a/tools/testing/vsock/util.c +++ b/tools/testing/vsock/util.c @@ -11,10 +11,12 @@ #include #include #include +#include #include #include #include #include +#include #include "timeout.h" #include "control.h" @@ -444,3 +446,111 @@ unsigned long hash_djb2(const void *data, size_t len) return hash; } + +size_t iovec_bytes(const struct iovec *iov, size_t iovnum) +{ + size_t bytes; + int i; + + for (bytes = 0, i = 0; i < iovnum; i++) + bytes += iov[i].iov_len; + + return bytes; +} + +unsigned long iovec_hash_djb2(const struct iovec *iov, size_t iovnum) +{ + unsigned long hash; + size_t iov_bytes; + size_t offs; + void *tmp; + int i; + + iov_bytes = iovec_bytes(iov, iovnum); + + tmp = malloc(iov_bytes); + if (!tmp) { + perror("malloc"); + exit(EXIT_FAILURE); + } + + for (offs = 0, i = 0; i < iovnum; i++) { + memcpy(tmp + offs, iov[i].iov_base, iov[i].iov_len); + offs += iov[i].iov_len; + } + + hash = hash_djb2(tmp, iov_bytes); + free(tmp); + + return hash; +} + +struct iovec *iovec_from_test_data(const struct iovec *test_iovec, int iovnum) +{ + struct iovec *iovec; + int i; + + iovec = malloc(sizeof(*iovec) * iovnum); + if (!iovec) { + perror("malloc"); + exit(EXIT_FAILURE); + } + + for (i = 0; i < iovnum; i++) { + iovec[i].iov_len = test_iovec[i].iov_len; + + iovec[i].iov_base = mmap(NULL, iovec[i].iov_len, + PROT_READ | PROT_WRITE, + MAP_PRIVATE | MAP_ANONYMOUS | MAP_POPULATE, + -1, 0); + if (iovec[i].iov_base == MAP_FAILED) { + perror("mmap"); + exit(EXIT_FAILURE); + } + + if (test_iovec[i].iov_base != MAP_FAILED) + iovec[i].iov_base += (uintptr_t)test_iovec[i].iov_base; + } + + /* Unmap "invalid" elements. */ + for (i = 0; i < iovnum; i++) { + if (test_iovec[i].iov_base == MAP_FAILED) { + if (munmap(iovec[i].iov_base, iovec[i].iov_len)) { + perror("munmap"); + exit(EXIT_FAILURE); + } + } + } + + for (i = 0; i < iovnum; i++) { + int j; + + if (test_iovec[i].iov_base == MAP_FAILED) + continue; + + for (j = 0; j < iovec[i].iov_len; j++) + ((uint8_t *)iovec[i].iov_base)[j] = rand() & 0xff; + } + + return iovec; +} + +void free_iovec_test_data(const struct iovec *test_iovec, + struct iovec *iovec, int iovnum) +{ + int i; + + for (i = 0; i < iovnum; i++) { + if (test_iovec[i].iov_base != MAP_FAILED) { + if (test_iovec[i].iov_base) + iovec[i].iov_base -= (uintptr_t)test_iovec[i].iov_base; + + if (munmap(iovec[i].iov_base, iovec[i].iov_len)) { + perror("munmap"); + exit(EXIT_FAILURE); + } + } + } + + free(iovec); +} diff --git a/tools/testing/vsock/util.h b/tools/testing/vsock/util.h index e5407677ce05..4cacb8d804c1 100644 --- a/tools/testing/vsock/util.h +++ b/tools/testing/vsock/util.h @@ -53,4 +53,9 @@ void list_tests(const struct test_case *test_cases); void skip_test(struct test_case *test_cases, size_t test_cases_len, const char *test_id_str); unsigned long hash_djb2(const void *data, size_t len); +size_t iovec_bytes(const struct iovec *iov, size_t iovnum); +unsigned long iovec_hash_djb2(const struct iovec *iov, size_t iovnum); +struct iovec *iovec_from_test_data(const struct iovec *test_iovec, int iovnum); +void free_iovec_test_data(const struct iovec *test_iovec, + struct iovec *iovec, int iovnum); #endif /* UTIL_H */ diff --git a/tools/testing/vsock/vsock_test.c b/tools/testing/vsock/vsock_test.c index da4cb819a183..c1f7bc9abd22 100644 --- a/tools/testing/vsock/vsock_test.c +++ b/tools/testing/vsock/vsock_test.c @@ -21,6 +21,7 @@ #include #include +#include "vsock_test_zerocopy.h" #include "timeout.h" #include "control.h" #include "util.h" @@ -1269,6 +1270,21 @@ static struct test_case test_cases[] = { .run_client = test_stream_shutrd_client, .run_server = test_stream_shutrd_server, }, + { + .name = "SOCK_STREAM MSG_ZEROCOPY", + .run_client = test_stream_msgzcopy_client, + .run_server = test_stream_msgzcopy_server, + }, + { + .name = "SOCK_SEQPACKET MSG_ZEROCOPY", + .run_client = test_seqpacket_msgzcopy_client, + .run_server = test_seqpacket_msgzcopy_server, + }, + { + .name = "SOCK_STREAM MSG_ZEROCOPY empty MSG_ERRQUEUE", + .run_client = test_stream_msgzcopy_empty_errq_client, + .run_server = test_stream_msgzcopy_empty_errq_server, + }, {}, }; diff --git a/tools/testing/vsock/vsock_test_zerocopy.c b/tools/testing/vsock/vsock_test_zerocopy.c new file mode 100644 index 000000000000..af14efdf334b --- /dev/null +++ b/tools/testing/vsock/vsock_test_zerocopy.c @@ -0,0 +1,367 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* MSG_ZEROCOPY feature tests for vsock + * + * Copyright (C) 2023 SberDevices. + * + * Author: Arseniy Krasnov + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "control.h" +#include "vsock_test_zerocopy.h" +#include "msg_zerocopy_common.h" + +#define PAGE_SIZE 4096 + +#define VSOCK_TEST_DATA_MAX_IOV 3 + +struct vsock_test_data { + /* This test case if for SOCK_STREAM only. */ + bool stream_only; + /* Data must be zerocopied. This field is checked against + * field 'ee_code' of the 'struct sock_extended_err', which + * contains bit to detect that zerocopy transmission was + * fallbacked to copy mode. + */ + bool zerocopied; + /* Enable SO_ZEROCOPY option on the socket. Without enabled + * SO_ZEROCOPY, every MSG_ZEROCOPY transmission will behave + * like without MSG_ZEROCOPY flag. + */ + bool so_zerocopy; + /* 'errno' after 'sendmsg()' call. */ + int sendmsg_errno; + /* Number of valid elements in 'vecs'. */ + int vecs_cnt; + /* Array how to allocate buffers for test. + * 'iov_base' == NULL -> valid buf: mmap('iov_len'). + * + * 'iov_base' == MAP_FAILED -> invalid buf: + * mmap('iov_len'), then munmap('iov_len'). + * 'iov_base' still contains result of + * mmap(). + * + * 'iov_base' == number -> unaligned valid buf: + * mmap('iov_len') + number. + */ + struct iovec vecs[VSOCK_TEST_DATA_MAX_IOV]; +}; + +static struct vsock_test_data test_data_array[] = { + /* Last element has non-page aligned size. */ + { + .zerocopied = true, + .so_zerocopy = true, + .sendmsg_errno = 0, + .vecs_cnt = 3, + { + { NULL, PAGE_SIZE }, + { NULL, PAGE_SIZE }, + { NULL, 200 } + } + }, + /* All elements have page aligned base and size. */ + { + .zerocopied = true, + .so_zerocopy = true, + .sendmsg_errno = 0, + .vecs_cnt = 3, + { + { NULL, PAGE_SIZE }, + { NULL, PAGE_SIZE * 2 }, + { NULL, PAGE_SIZE * 3 } + } + }, + /* All elements have page aligned base and size. But + * data length is bigger than 64Kb. + */ + { + .zerocopied = true, + .so_zerocopy = true, + .sendmsg_errno = 0, + .vecs_cnt = 3, + { + { NULL, PAGE_SIZE * 16 }, + { NULL, PAGE_SIZE * 16 }, + { NULL, PAGE_SIZE * 16 } + } + }, + /* Middle element has both non-page aligned base and size. */ + { + .zerocopied = true, + .so_zerocopy = true, + .sendmsg_errno = 0, + .vecs_cnt = 3, + { + { NULL, PAGE_SIZE }, + { (void *)1, 100 }, + { NULL, PAGE_SIZE } + } + }, + /* Middle element is unmapped. */ + { + .zerocopied = false, + .so_zerocopy = true, + .sendmsg_errno = ENOMEM, + .vecs_cnt = 3, + { + { NULL, PAGE_SIZE }, + { MAP_FAILED, PAGE_SIZE }, + { NULL, PAGE_SIZE } + } + }, + /* Valid data, but SO_ZEROCOPY is off. This + * will trigger fallback to copy. + */ + { + .zerocopied = false, + .so_zerocopy = false, + .sendmsg_errno = 0, + .vecs_cnt = 1, + { + { NULL, PAGE_SIZE } + } + }, + /* Valid data, but message is bigger than peer's + * buffer, so this will trigger fallback to copy. + * This test is for SOCK_STREAM only, because + * for SOCK_SEQPACKET, 'sendmsg()' returns EMSGSIZE. + */ + { + .stream_only = true, + .zerocopied = false, + .so_zerocopy = true, + .sendmsg_errno = 0, + .vecs_cnt = 1, + { + { NULL, 100 * PAGE_SIZE } + } + }, +}; + +#define POLL_TIMEOUT_MS 100 + +static void test_client(const struct test_opts *opts, + const struct vsock_test_data *test_data, + bool sock_seqpacket) +{ + struct pollfd fds = { 0 }; + struct msghdr msg = { 0 }; + ssize_t sendmsg_res; + struct iovec *iovec; + int fd; + + if (sock_seqpacket) + fd = vsock_seqpacket_connect(opts->peer_cid, 1234); + else + fd = vsock_stream_connect(opts->peer_cid, 1234); + + if (fd < 0) { + perror("connect"); + exit(EXIT_FAILURE); + } + + if (test_data->so_zerocopy) + enable_so_zerocopy(fd); + + iovec = iovec_from_test_data(test_data->vecs, test_data->vecs_cnt); + + msg.msg_iov = iovec; + msg.msg_iovlen = test_data->vecs_cnt; + + errno = 0; + + sendmsg_res = sendmsg(fd, &msg, MSG_ZEROCOPY); + if (errno != test_data->sendmsg_errno) { + fprintf(stderr, "expected 'errno' == %i, got %i\n", + test_data->sendmsg_errno, errno); + exit(EXIT_FAILURE); + } + + if (!errno) { + if (sendmsg_res != iovec_bytes(iovec, test_data->vecs_cnt)) { + fprintf(stderr, "expected 'sendmsg()' == %li, got %li\n", + iovec_bytes(iovec, test_data->vecs_cnt), + sendmsg_res); + exit(EXIT_FAILURE); + } + } + + fds.fd = fd; + fds.events = 0; + + if (poll(&fds, 1, POLL_TIMEOUT_MS) < 0) { + perror("poll"); + exit(EXIT_FAILURE); + } + + if (fds.revents & POLLERR) { + vsock_recv_completion(fd, &test_data->zerocopied); + } else if (test_data->so_zerocopy && !test_data->sendmsg_errno) { + /* If we don't have data in the error queue, but + * SO_ZEROCOPY was enabled and 'sendmsg()' was + * successful - this is an error. + */ + fprintf(stderr, "POLLERR expected\n"); + exit(EXIT_FAILURE); + } + + if (!test_data->sendmsg_errno) + control_writeulong(iovec_hash_djb2(iovec, test_data->vecs_cnt)); + else + control_writeulong(0); + + control_writeln("DONE"); + free_iovec_test_data(test_data->vecs, iovec, test_data->vecs_cnt); + close(fd); +} + +void test_stream_msgzcopy_client(const struct test_opts *opts) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(test_data_array); i++) + test_client(opts, &test_data_array[i], false); +} + +void test_seqpacket_msgzcopy_client(const struct test_opts *opts) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(test_data_array); i++) { + if (test_data_array[i].stream_only) + continue; + + test_client(opts, &test_data_array[i], true); + } +} + +static void test_server(const struct test_opts *opts, + const struct vsock_test_data *test_data, + bool sock_seqpacket) +{ + unsigned long remote_hash; + unsigned long local_hash; + ssize_t total_bytes_rec; + unsigned char *data; + size_t data_len; + int fd; + + if (sock_seqpacket) + fd = vsock_seqpacket_accept(VMADDR_CID_ANY, 1234, NULL); + else + fd = vsock_stream_accept(VMADDR_CID_ANY, 1234, NULL); + + if (fd < 0) { + perror("accept"); + exit(EXIT_FAILURE); + } + + data_len = iovec_bytes(test_data->vecs, test_data->vecs_cnt); + + data = malloc(data_len); + if (!data) { + perror("malloc"); + exit(EXIT_FAILURE); + } + + total_bytes_rec = 0; + + while (total_bytes_rec != data_len) { + ssize_t bytes_rec; + + bytes_rec = read(fd, data + total_bytes_rec, + data_len - total_bytes_rec); + if (bytes_rec <= 0) + break; + + total_bytes_rec += bytes_rec; + } + + if (test_data->sendmsg_errno == 0) + local_hash = hash_djb2(data, data_len); + else + local_hash = 0; + + free(data); + + /* Waiting for some result. */ + remote_hash = control_readulong(); + if (remote_hash != local_hash) { + fprintf(stderr, "hash mismatch\n"); + exit(EXIT_FAILURE); + } + + control_expectln("DONE"); + close(fd); +} + +void test_stream_msgzcopy_server(const struct test_opts *opts) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(test_data_array); i++) + test_server(opts, &test_data_array[i], false); +} + +void test_seqpacket_msgzcopy_server(const struct test_opts *opts) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(test_data_array); i++) { + if (test_data_array[i].stream_only) + continue; + + test_server(opts, &test_data_array[i], true); + } +} + +void test_stream_msgzcopy_empty_errq_client(const struct test_opts *opts) +{ + struct msghdr msg = { 0 }; + char cmsg_data[128]; + ssize_t res; + int fd; + + fd = vsock_stream_connect(opts->peer_cid, 1234); + if (fd < 0) { + perror("connect"); + exit(EXIT_FAILURE); + } + + msg.msg_control = cmsg_data; + msg.msg_controllen = sizeof(cmsg_data); + + res = recvmsg(fd, &msg, MSG_ERRQUEUE); + if (res != -1) { + fprintf(stderr, "expected 'recvmsg(2)' failure, got %zi\n", + res); + exit(EXIT_FAILURE); + } + + control_writeln("DONE"); + close(fd); +} + +void test_stream_msgzcopy_empty_errq_server(const struct test_opts *opts) +{ + int fd; + + fd = vsock_stream_accept(VMADDR_CID_ANY, 1234, NULL); + if (fd < 0) { + perror("accept"); + exit(EXIT_FAILURE); + } + + control_expectln("DONE"); + close(fd); +} diff --git a/tools/testing/vsock/vsock_test_zerocopy.h b/tools/testing/vsock/vsock_test_zerocopy.h new file mode 100644 index 000000000000..3ef2579e024d --- /dev/null +++ b/tools/testing/vsock/vsock_test_zerocopy.h @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +#ifndef VSOCK_TEST_ZEROCOPY_H +#define VSOCK_TEST_ZEROCOPY_H +#include "util.h" + +void test_stream_msgzcopy_client(const struct test_opts *opts); +void test_stream_msgzcopy_server(const struct test_opts *opts); + +void test_seqpacket_msgzcopy_client(const struct test_opts *opts); +void test_seqpacket_msgzcopy_server(const struct test_opts *opts); + +void test_stream_msgzcopy_empty_errq_client(const struct test_opts *opts); +void test_stream_msgzcopy_empty_errq_server(const struct test_opts *opts); + +#endif /* VSOCK_TEST_ZEROCOPY_H */