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Miller" , "Jakub Kicinski" , Paolo Abeni CC: Bobby Eshleman , Krasnov Arseniy , Arseniy Krasnov , "linux-kernel@vger.kernel.org" , "virtualization@lists.linux-foundation.org" , "netdev@vger.kernel.org" , kernel Subject: [RFC PATCH v3 1/4] vsock: return errors other than -ENOMEM to socket Thread-Topic: [RFC PATCH v3 1/4] vsock: return errors other than -ENOMEM to socket Thread-Index: AQHZCBVPUxodrmNfCUeS2ScEDlgfUQ== Date: Sun, 4 Dec 2022 19:19:20 +0000 Message-ID: In-Reply-To: <6bd77692-8388-8693-f15f-833df1fa6afd@sberdevices.ru> Accept-Language: en-US, ru-RU Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [172.16.1.12] Content-ID: <4A8C54714356D4498F9AC846A04E186C@sberdevices.ru> MIME-Version: 1.0 X-KSMG-Rule-ID: 4 X-KSMG-Message-Action: clean X-KSMG-AntiSpam-Status: not scanned, disabled by settings X-KSMG-AntiSpam-Interceptor-Info: not scanned X-KSMG-AntiPhishing: not scanned, disabled by settings X-KSMG-AntiVirus: Kaspersky Secure Mail Gateway, version 1.1.2.30, bases: 2022/12/04 13:44:00 #20647742 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,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1751312991898922449?= X-GMAIL-MSGID: =?utf-8?q?1751312991898922449?= From: Bobby Eshleman This removes behaviour, where error code returned from any transport was always switched to ENOMEM. Signed-off-by: Bobby Eshleman Signed-off-by: Arseniy Krasnov --- net/vmw_vsock/af_vsock.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) -- 2.25.1 diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c index 884eca7f6743..61ddab664c33 100644 --- a/net/vmw_vsock/af_vsock.c +++ b/net/vmw_vsock/af_vsock.c @@ -1862,8 +1862,9 @@ static int vsock_connectible_sendmsg(struct socket *sock, struct msghdr *msg, written = transport->stream_enqueue(vsk, msg, len - total_written); } + if (written < 0) { - err = -ENOMEM; + err = written; goto out_err; } From patchwork Sun Dec 4 19:20:52 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arseniy Krasnov X-Patchwork-Id: 29458 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:adf:f944:0:0:0:0:0 with SMTP id q4csp1919387wrr; Sun, 4 Dec 2022 11:55:05 -0800 (PST) X-Google-Smtp-Source: AA0mqf5lweneP+RdqY4j7HGEuCi7Kfya5+sY2hkpFTen4vGTDahfRoB8WWg+sx1ZCKpW/EmlRq3Z X-Received: by 2002:a05:6402:68f:b0:46c:53ea:4a64 with SMTP id f15-20020a056402068f00b0046c53ea4a64mr7051884edy.413.1670183705671; Sun, 04 Dec 2022 11:55:05 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1670183705; cv=none; d=google.com; s=arc-20160816; b=HaTPJ4CcMVQho2NnS/03wf3xDWBUuW9V8kW+9Sup5K9HPaUaDKILHd3bXYSAy6nLz9 1ZCd7ev+mH5Rj5LZP4o4mqZdS36kIRA0yX3SDM64NobCmrhg43XKsnRRqgBTncsMsvSZ I2/b1MBHQnh0zL7ofWWwZr7HWktaaiKr87/NwHzsWXbHsWunNglpawl4qi8U+/36c1gW Bxc67sZ4JRtdBwn+d1w19+pDa8AxZgqn3KGtFLoYJWSQjFBvR1eCTj9WEugNe7chHuZz W01VbCUZ666GP9Fc4/QjfNGy2hC8+oGGItiANvcip/JtVRS4+8t/WSZC0pm6hR3fWVau nHkQ== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:mime-version:content-transfer-encoding :content-id:content-language:accept-language:in-reply-to:message-id :date:thread-index:thread-topic:subject:cc:to:from:dkim-signature; bh=KTbR7+8FTcO0h1+Gu1G5cT/iK6lyJg6Y5HyJO3yJY8A=; b=TR++dKtGcG3q7tKRPSIRiUlvhAtb0sEUVFA2C7gYZmNuF175Gi49jS3eIRUXnvy6qe 70RpubHpZUr4dxYLQ4FowQlbzbtSB4eEMeS5aBad9bpyGqNWONEWqPnW7ef/ptFQ2lPT YlmsLyF4MH4qaFM/YO40SqLE3y2KfcTNRbArALaSbJTajZOgxf37QAbVNcJ44m6vVxSo vRRlVHy7iWy1rfi02+e/zYYAXsZa1JqAVYh2e3nwZ2J2KS5GTe+/j81soll/ssrpvy9h MPSCqjLYWw3TwEIsR6QhIT7Fsgy76Cg01F0LN7CNcyRaYoBGc7K0DUUYdWkMi+p4koxb Upmw== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@sberdevices.ru header.s=mail header.b=pMt0U0xt; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=sberdevices.ru Received: from out1.vger.email (out1.vger.email. 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Miller" , "Jakub Kicinski" , Paolo Abeni CC: Bobby Eshleman , Krasnov Arseniy , Arseniy Krasnov , "linux-kernel@vger.kernel.org" , "virtualization@lists.linux-foundation.org" , "netdev@vger.kernel.org" , kernel Subject: [RFC PATCH v3 2/4] test/vsock: rework message bounds test Thread-Topic: [RFC PATCH v3 2/4] test/vsock: rework message bounds test Thread-Index: AQHZCBWGmoJyQQiJI0yKOWVN02rekw== Date: Sun, 4 Dec 2022 19:20:52 +0000 Message-ID: In-Reply-To: <6bd77692-8388-8693-f15f-833df1fa6afd@sberdevices.ru> Accept-Language: en-US, ru-RU Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [172.16.1.12] Content-ID: <89565FE1CC573441ABE33866C34349E1@sberdevices.ru> MIME-Version: 1.0 X-KSMG-Rule-ID: 4 X-KSMG-Message-Action: clean X-KSMG-AntiSpam-Status: not scanned, disabled by settings X-KSMG-AntiSpam-Interceptor-Info: not scanned X-KSMG-AntiPhishing: not scanned, disabled by settings X-KSMG-AntiVirus: Kaspersky Secure Mail Gateway, version 1.1.2.30, bases: 2022/12/04 13:44:00 #20647742 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,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1751314549664886764?= X-GMAIL-MSGID: =?utf-8?q?1751314549664886764?= This updates message bound test making it more complex. Instead of sending 1 bytes messages with one MSG_EOR bit, it sends messages of random length(one half of messages are smaller than page size, second half are bigger) with random number of MSG_EOR bits set. Receiver also don't know total number of messages. Signed-off-by: Arseniy Krasnov --- tools/testing/vsock/control.c | 28 +++++++ tools/testing/vsock/control.h | 2 + tools/testing/vsock/util.c | 13 ++++ tools/testing/vsock/util.h | 1 + tools/testing/vsock/vsock_test.c | 124 +++++++++++++++++++++++++++---- 5 files changed, 155 insertions(+), 13 deletions(-) -- 2.25.1 diff --git a/tools/testing/vsock/control.c b/tools/testing/vsock/control.c index 4874872fc5a3..d2deb4b15b94 100644 --- a/tools/testing/vsock/control.c +++ b/tools/testing/vsock/control.c @@ -141,6 +141,34 @@ void control_writeln(const char *str) timeout_end(); } +void control_writeulong(unsigned long value) +{ + char str[32]; + + if (snprintf(str, sizeof(str), "%lu", value) >= sizeof(str)) { + perror("snprintf"); + exit(EXIT_FAILURE); + } + + control_writeln(str); +} + +unsigned long control_readulong(void) +{ + unsigned long value; + char *str; + + str = control_readln(); + + if (!str) + exit(EXIT_FAILURE); + + value = strtoul(str, NULL, 10); + free(str); + + return value; +} + /* Return the next line from the control socket (without the trailing newline). * * The program terminates if a timeout occurs. diff --git a/tools/testing/vsock/control.h b/tools/testing/vsock/control.h index 51814b4f9ac1..c1f77fdb2c7a 100644 --- a/tools/testing/vsock/control.h +++ b/tools/testing/vsock/control.h @@ -9,7 +9,9 @@ void control_init(const char *control_host, const char *control_port, void control_cleanup(void); void control_writeln(const char *str); char *control_readln(void); +unsigned long control_readulong(void); void control_expectln(const char *str); bool control_cmpln(char *line, const char *str, bool fail); +void control_writeulong(unsigned long value); #endif /* CONTROL_H */ diff --git a/tools/testing/vsock/util.c b/tools/testing/vsock/util.c index 2acbb7703c6a..01b636d3039a 100644 --- a/tools/testing/vsock/util.c +++ b/tools/testing/vsock/util.c @@ -395,3 +395,16 @@ void skip_test(struct test_case *test_cases, size_t test_cases_len, test_cases[test_id].skip = true; } + +unsigned long hash_djb2(const void *data, size_t len) +{ + unsigned long hash = 5381; + int i = 0; + + while (i < len) { + hash = ((hash << 5) + hash) + ((unsigned char *)data)[i]; + i++; + } + + return hash; +} diff --git a/tools/testing/vsock/util.h b/tools/testing/vsock/util.h index a3375ad2fb7f..fb99208a95ea 100644 --- a/tools/testing/vsock/util.h +++ b/tools/testing/vsock/util.h @@ -49,4 +49,5 @@ void run_tests(const struct test_case *test_cases, 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); #endif /* UTIL_H */ diff --git a/tools/testing/vsock/vsock_test.c b/tools/testing/vsock/vsock_test.c index bb6d691cb30d..a5904ee39e91 100644 --- a/tools/testing/vsock/vsock_test.c +++ b/tools/testing/vsock/vsock_test.c @@ -284,10 +284,14 @@ static void test_stream_msg_peek_server(const struct test_opts *opts) close(fd); } -#define MESSAGES_CNT 7 -#define MSG_EOR_IDX (MESSAGES_CNT / 2) +#define SOCK_BUF_SIZE (2 * 1024 * 1024) +#define MAX_MSG_SIZE (32 * 1024) + static void test_seqpacket_msg_bounds_client(const struct test_opts *opts) { + unsigned long curr_hash; + int page_size; + int msg_count; int fd; fd = vsock_seqpacket_connect(opts->peer_cid, 1234); @@ -296,18 +300,79 @@ static void test_seqpacket_msg_bounds_client(const struct test_opts *opts) exit(EXIT_FAILURE); } - /* Send several messages, one with MSG_EOR flag */ - for (int i = 0; i < MESSAGES_CNT; i++) - send_byte(fd, 1, (i == MSG_EOR_IDX) ? MSG_EOR : 0); + /* Wait, until receiver sets buffer size. */ + control_expectln("SRVREADY"); + + curr_hash = 0; + page_size = getpagesize(); + msg_count = SOCK_BUF_SIZE / MAX_MSG_SIZE; + + for (int i = 0; i < msg_count; i++) { + ssize_t send_size; + size_t buf_size; + int flags; + void *buf; + + /* Use "small" buffers and "big" buffers. */ + if (i & 1) + buf_size = page_size + + (rand() % (MAX_MSG_SIZE - page_size)); + else + buf_size = 1 + (rand() % page_size); + + buf = malloc(buf_size); + + if (!buf) { + perror("malloc"); + exit(EXIT_FAILURE); + } + + memset(buf, rand() & 0xff, buf_size); + /* Set at least one MSG_EOR + some random. */ + if (i == (msg_count / 2) || (rand() & 1)) { + flags = MSG_EOR; + curr_hash++; + } else { + flags = 0; + } + + send_size = send(fd, buf, buf_size, flags); + + if (send_size < 0) { + perror("send"); + exit(EXIT_FAILURE); + } + + if (send_size != buf_size) { + fprintf(stderr, "Invalid send size\n"); + exit(EXIT_FAILURE); + } + + /* + * Hash sum is computed at both client and server in + * the same way: + * H += hash('message data') + * Such hash "contols" both data integrity and message + * bounds. After data exchange, both sums are compared + * using control socket, and if message bounds wasn't + * broken - two values must be equal. + */ + curr_hash += hash_djb2(buf, buf_size); + free(buf); + } control_writeln("SENDDONE"); + control_writeulong(curr_hash); close(fd); } static void test_seqpacket_msg_bounds_server(const struct test_opts *opts) { + unsigned long sock_buf_size; + unsigned long remote_hash; + unsigned long curr_hash; int fd; - char buf[16]; + char buf[MAX_MSG_SIZE]; struct msghdr msg = {0}; struct iovec iov = {0}; @@ -317,25 +382,57 @@ static void test_seqpacket_msg_bounds_server(const struct test_opts *opts) exit(EXIT_FAILURE); } + sock_buf_size = SOCK_BUF_SIZE; + + if (setsockopt(fd, AF_VSOCK, SO_VM_SOCKETS_BUFFER_MAX_SIZE, + &sock_buf_size, sizeof(sock_buf_size))) { + perror("getsockopt"); + exit(EXIT_FAILURE); + } + + if (setsockopt(fd, AF_VSOCK, SO_VM_SOCKETS_BUFFER_SIZE, + &sock_buf_size, sizeof(sock_buf_size))) { + perror("getsockopt"); + exit(EXIT_FAILURE); + } + + /* Ready to receive data. */ + control_writeln("SRVREADY"); + /* Wait, until peer sends whole data. */ control_expectln("SENDDONE"); iov.iov_base = buf; iov.iov_len = sizeof(buf); msg.msg_iov = &iov; msg.msg_iovlen = 1; - for (int i = 0; i < MESSAGES_CNT; i++) { - if (recvmsg(fd, &msg, 0) != 1) { - perror("message bound violated"); - exit(EXIT_FAILURE); - } + curr_hash = 0; - if ((i == MSG_EOR_IDX) ^ !!(msg.msg_flags & MSG_EOR)) { - perror("MSG_EOR"); + while (1) { + ssize_t recv_size; + + recv_size = recvmsg(fd, &msg, 0); + + if (!recv_size) + break; + + if (recv_size < 0) { + perror("recvmsg"); exit(EXIT_FAILURE); } + + if (msg.msg_flags & MSG_EOR) + curr_hash++; + + curr_hash += hash_djb2(msg.msg_iov[0].iov_base, recv_size); } close(fd); + remote_hash = control_readulong(); + + if (curr_hash != remote_hash) { + fprintf(stderr, "Message bounds broken\n"); + exit(EXIT_FAILURE); + } } #define MESSAGE_TRUNC_SZ 32 @@ -837,6 +934,7 @@ int main(int argc, char **argv) .peer_cid = VMADDR_CID_ANY, }; + srand(time(NULL)); init_signals(); for (;;) { From patchwork Sun Dec 4 19:22:30 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arseniy Krasnov X-Patchwork-Id: 29459 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:adf:f944:0:0:0:0:0 with SMTP id q4csp1919694wrr; Sun, 4 Dec 2022 11:56:26 -0800 (PST) X-Google-Smtp-Source: AA0mqf7KPvX1dP+lLx36KeUSQ8sx6SreHrU6aRl/6aRo3odb3JJrbw2lweh4rm1Tjk2+FgNJMSyu X-Received: by 2002:a05:6402:606:b0:46b:2f7f:6fe4 with SMTP id n6-20020a056402060600b0046b2f7f6fe4mr29128831edv.189.1670183786756; Sun, 04 Dec 2022 11:56:26 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1670183786; cv=none; d=google.com; s=arc-20160816; b=Iy5Ajh+Z1KS/LSXoJRXjQQu1XNwEzFhSyA58dmZ0NJZUCU8qU+3wim/3VYM9jARx2J kRQxybLNImET9I8TsaYdfencs+L4sZkNI7LhVU/r0bRQeJ22cdiNbozrv6rPM7g17iZz BPFRChp9wagCtQd6XqGVmZ6W37qb/XloLVx1L8ZBLIY0cbJaq+r+MGBnFMZiR3pPH1gG nmZK3bdUnxqohpRzzVSgrgLvD9lb4v/u8rmtda9w4Tm9lhnlFcfm/uiDBbW13aDcgFjc eLFCAU+HsF8/OyOXGXiZ1k9BUThEYlFJiC3Z/OaY8Tf+PUUK6pGuOKJIMDdnyJiEakaV bFDg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:mime-version:content-transfer-encoding :content-id:content-language:accept-language:in-reply-to:message-id :date:thread-index:thread-topic:subject:cc:to:from:dkim-signature; bh=i+BopE1O8xRzs7H1Kym9nHEpuyNx7DWw32eD69gFqlA=; b=P7bnNXL3q3DjpvCiekidAOlvAa9nIotfM4Sa0bKkNDYHSsRJ2PSmd+rcTtfCu+sKxN 1EEHEnZ9nVKNZPd2kX2+XzK3/KzKY1ftFqMFGIO1KzmbNFI8K3gZ6xdwrTXyyNlFz3ea blBT0Izur1msXMNJuEs3CyjgB1mR0qu/GQupi3/TLTmOC3Q5LV8Xjf1ayzVUfQ+mydJ4 6cU/9JCedRWuUg0hGUi5dpWDUB8QCV31L0AIAtNN3bNBDPywzwyy7YUeOSFHxtNN4FYN evnYiOhgWqxlSokj5d4eVv3KIxhGwahOXAN1llCbKZOLAWZ2kXGJcVcrXKmT23bjxP/I BSuA== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@sberdevices.ru header.s=mail header.b=cN0oYtWb; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=sberdevices.ru Received: from out1.vger.email (out1.vger.email. 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Miller" , "Jakub Kicinski" , Paolo Abeni CC: Bobby Eshleman , Krasnov Arseniy , Arseniy Krasnov , "linux-kernel@vger.kernel.org" , "virtualization@lists.linux-foundation.org" , "netdev@vger.kernel.org" , kernel Subject: [RFC PATCH v3 3/4] test/vsock: add big message test Thread-Topic: [RFC PATCH v3 3/4] test/vsock: add big message test Thread-Index: AQHZCBXAvX2azG4SP0WsjlxzIGJ3Aw== Date: Sun, 4 Dec 2022 19:22:30 +0000 Message-ID: <08643a80-d8fd-7f7f-78ec-1962f1dcdd25@sberdevices.ru> In-Reply-To: <6bd77692-8388-8693-f15f-833df1fa6afd@sberdevices.ru> Accept-Language: en-US, ru-RU Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [172.16.1.12] Content-ID: <6719128948C4E048BDE9C4699E447610@sberdevices.ru> MIME-Version: 1.0 X-KSMG-Rule-ID: 4 X-KSMG-Message-Action: clean X-KSMG-AntiSpam-Status: not scanned, disabled by settings X-KSMG-AntiSpam-Interceptor-Info: not scanned X-KSMG-AntiPhishing: not scanned, disabled by settings X-KSMG-AntiVirus: Kaspersky Secure Mail Gateway, version 1.1.2.30, bases: 2022/12/04 13:44:00 #20647742 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,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1751314634491347500?= X-GMAIL-MSGID: =?utf-8?q?1751314634491347500?= This adds test for sending message, bigger than peer's buffer size. For SOCK_SEQPACKET socket it must fail, as this type of socket has message size limit. Signed-off-by: Arseniy Krasnov Reviewed-by: Stefano Garzarella --- tools/testing/vsock/vsock_test.c | 69 ++++++++++++++++++++++++++++++++ 1 file changed, 69 insertions(+) -- 2.25.1 diff --git a/tools/testing/vsock/vsock_test.c b/tools/testing/vsock/vsock_test.c index a5904ee39e91..c4db6c9d2273 100644 --- a/tools/testing/vsock/vsock_test.c +++ b/tools/testing/vsock/vsock_test.c @@ -569,6 +569,70 @@ static void test_seqpacket_timeout_server(const struct test_opts *opts) close(fd); } +static void test_seqpacket_bigmsg_client(const struct test_opts *opts) +{ + unsigned long sock_buf_size; + ssize_t send_size; + socklen_t len; + void *data; + int fd; + + len = sizeof(sock_buf_size); + + fd = vsock_seqpacket_connect(opts->peer_cid, 1234); + if (fd < 0) { + perror("connect"); + exit(EXIT_FAILURE); + } + + if (getsockopt(fd, AF_VSOCK, SO_VM_SOCKETS_BUFFER_SIZE, + &sock_buf_size, &len)) { + perror("getsockopt"); + exit(EXIT_FAILURE); + } + + sock_buf_size++; + + data = malloc(sock_buf_size); + if (!data) { + perror("malloc"); + exit(EXIT_FAILURE); + } + + send_size = send(fd, data, sock_buf_size, 0); + if (send_size != -1) { + fprintf(stderr, "expected 'send(2)' failure, got %zi\n", + send_size); + exit(EXIT_FAILURE); + } + + if (errno != EMSGSIZE) { + fprintf(stderr, "expected EMSGSIZE in 'errno', got %i\n", + errno); + exit(EXIT_FAILURE); + } + + control_writeln("CLISENT"); + + free(data); + close(fd); +} + +static void test_seqpacket_bigmsg_server(const struct test_opts *opts) +{ + int fd; + + fd = vsock_seqpacket_accept(VMADDR_CID_ANY, 1234, NULL); + if (fd < 0) { + perror("accept"); + exit(EXIT_FAILURE); + } + + control_expectln("CLISENT"); + + close(fd); +} + #define BUF_PATTERN_1 'a' #define BUF_PATTERN_2 'b' @@ -851,6 +915,11 @@ static struct test_case test_cases[] = { .run_client = test_stream_poll_rcvlowat_client, .run_server = test_stream_poll_rcvlowat_server, }, + { + .name = "SOCK_SEQPACKET big message", + .run_client = test_seqpacket_bigmsg_client, + .run_server = test_seqpacket_bigmsg_server, + }, {}, }; From patchwork Sun Dec 4 19:24:33 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Arseniy Krasnov X-Patchwork-Id: 29457 Return-Path: Delivered-To: ouuuleilei@gmail.com Received: by 2002:adf:f944:0:0:0:0:0 with SMTP id q4csp1919331wrr; Sun, 4 Dec 2022 11:54:49 -0800 (PST) X-Google-Smtp-Source: AA0mqf5tHsiWcs52HZlZZ1yplAo6wT+uhJhdkYBX1lGO1Ab9+1VwoPjz5Mrwp+bOyBIrIaPKlobR X-Received: by 2002:a50:ff04:0:b0:46b:19aa:cfc4 with SMTP id a4-20020a50ff04000000b0046b19aacfc4mr29753808edu.384.1670183689817; Sun, 04 Dec 2022 11:54:49 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1670183689; cv=none; d=google.com; s=arc-20160816; b=pU9MzVm2jKF08g+uUMR1TeuYIG0sVNbdHVg4Jqa3wrQvqQZXdHskWAPwx+uR5CHOGA Q8H7YYn/wmmhC6iCLjALXKa5PlNPwRr1vvq6R/yAxZSxpkwMvHR3Bou1FuKE5zSebORf t7lpEOkKwr5JbI/lxIGsvm5/l9TIAF1V8JtfaL68wEA9HgzDD51WNgFmcqn1WtxtMhpp hl2SROaSCqCruHZLZkmKwdihZJ+zFoDuDN9t6DlWA94GKU4f/v7ThYqfMSpVoVrrFDfn A7HbX9JMeJFEFw6RSPrAx9xtL0G8TVMcCaopZs1Cu9DstBTgy1zYrpEhDwK69umaQHBb kW5Q== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:mime-version:content-transfer-encoding :content-id:content-language:accept-language:in-reply-to:message-id :date:thread-index:thread-topic:subject:cc:to:from:dkim-signature; bh=CoowoPIuXbSDgd8CXW+eOK6R1DPBai/bTdt2wwkOrpE=; b=C7doidsdKzB6h3iSHiGADJdEy8igJhVjDH1HJBku9osYsHVA8zOqwB/4yBjCaXCm7G soDg6IK9yqhqF5ReHxzbiI15dAmYL7bothfZ2ZMJD8TU4KL0yAG8uqCmXiGXG/n6bH5Z 4b9WtOW7QctLVdt+AjXDAVpARr7q56tm+iMuRjF+kXsO4jyds/0TlBGiXYwQ7FdRFnxX 3KFc3/qrytNO2XR4fPTYZ6fjfbH1eLqBL3JPW5wH0sqSRISX4bxJb/1jATOEL0vEH7jp yZ3xhdfF0qP3yf/KadJkVDvz2nkhtoH8dDfc3osC2Ow8DJ4duguVvYYdAIA/G0uzBOXE ajDQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@sberdevices.ru header.s=mail header.b=d2AQbL44; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=QUARANTINE sp=QUARANTINE dis=NONE) header.from=sberdevices.ru Received: from out1.vger.email (out1.vger.email. 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Miller" CC: Bobby Eshleman , Krasnov Arseniy , Arseniy Krasnov , "linux-kernel@vger.kernel.org" , "virtualization@lists.linux-foundation.org" , "netdev@vger.kernel.org" , kernel Subject: [RFC PATCH v3 4/4] test/vsock: vsock_perf utility Thread-Topic: [RFC PATCH v3 4/4] test/vsock: vsock_perf utility Thread-Index: AQHZCBYK/cvwOp5740W2DR5unQsb0A== Date: Sun, 4 Dec 2022 19:24:33 +0000 Message-ID: <9cc7610f-bcf5-6f77-96fe-4239efb67ca7@sberdevices.ru> In-Reply-To: <6bd77692-8388-8693-f15f-833df1fa6afd@sberdevices.ru> Accept-Language: en-US, ru-RU Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [172.16.1.12] Content-ID: <4AC60EEB2284A14EBE3C65D2F0456A84@sberdevices.ru> MIME-Version: 1.0 X-KSMG-Rule-ID: 4 X-KSMG-Message-Action: clean X-KSMG-AntiSpam-Status: not scanned, disabled by settings X-KSMG-AntiSpam-Interceptor-Info: not scanned X-KSMG-AntiPhishing: not scanned, disabled by settings X-KSMG-AntiVirus: Kaspersky Secure Mail Gateway, version 1.1.2.30, bases: 2022/12/04 13:44:00 #20647742 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,SPF_HELO_NONE,SPF_PASS autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-getmail-retrieved-from-mailbox: =?utf-8?q?INBOX?= X-GMAIL-THRID: =?utf-8?q?1751314533008021845?= X-GMAIL-MSGID: =?utf-8?q?1751314533008021845?= This adds utility to check vsock rx/tx performance. Usage as sender: ./vsock_perf --port --mb --port --so_rcvlowat Signed-off-by: Arseniy Krasnov --- tools/testing/vsock/Makefile | 1 + tools/testing/vsock/README | 34 +++ tools/testing/vsock/vsock_perf.c | 449 +++++++++++++++++++++++++++++++ 3 files changed, 484 insertions(+) create mode 100644 tools/testing/vsock/vsock_perf.c -- 2.25.1 diff --git a/tools/testing/vsock/Makefile b/tools/testing/vsock/Makefile index f8293c6910c9..d36fdd59fe2e 100644 --- a/tools/testing/vsock/Makefile +++ b/tools/testing/vsock/Makefile @@ -3,6 +3,7 @@ all: test test: vsock_test vsock_diag_test vsock_test: vsock_test.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 CFLAGS += -g -O2 -Werror -Wall -I. -I../../include -I../../../usr/include -Wno-pointer-sign -fno-strict-overflow -fno-strict-aliasing -fno-common -MMD -U_FORTIFY_SOURCE -D_GNU_SOURCE .PHONY: all test clean diff --git a/tools/testing/vsock/README b/tools/testing/vsock/README index 4d5045e7d2c3..64c5757b7ecc 100644 --- a/tools/testing/vsock/README +++ b/tools/testing/vsock/README @@ -35,3 +35,37 @@ Invoke test binaries in both directions as follows: --control-port=$GUEST_IP \ --control-port=1234 \ --peer-cid=3 + +vsock_perf utility +------------------- +'vsock_perf' is a simple tool to measure vsock performance. It works in +sender/receiver modes: sender waits for connection at specified port, +and after accepting it, starts data transmission to the receiver. After data +processing is done, it prints several metrics(see below). + +Usage: +# run as sender +# listen port 1234, tx buffer size is 1MB, send of 1G data +./vsock_perf --sender --port 1234 --buf-size 1MB --mb 1G + +Output: +tx performance: A Gb/s + +Output explanation: +A is calculated as "number of bytes to send" / "time in tx loop" + +# run as receiver +# connect to CID 2, port 1234, rx buffer size is 1MB, peer buf is 1G, SO_RCVLOWAT is 65536 +./vsock_perf --cid 2 --port 1234 --buf-size 1MB --vsk-size 1G -so_rcvlowat 65536 + +Output: +rx performance: A Gb/s +total in 'read()': B sec +POLLIN wakeups: C +average in 'read()': D ns + +Output explanation: +A is calculated as "number of received bytes" / "time in rx loop". +B is time, spent in 'read()' system call(excluding 'poll()') +C is number of 'poll()' wake ups with POLLIN bit set. +D is B / C, e.g. average amount of time, spent in single 'read()'. diff --git a/tools/testing/vsock/vsock_perf.c b/tools/testing/vsock/vsock_perf.c new file mode 100644 index 000000000000..69e3b24868d7 --- /dev/null +++ b/tools/testing/vsock/vsock_perf.c @@ -0,0 +1,449 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * vsock_perf - benchmark utility for vsock. + * + * Copyright (C) 2022 SberDevices. + * + * Author: Arseniy Krasnov + */ +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define DEFAULT_BUF_SIZE_BYTES (128 * 1024) +#define DEFAULT_TO_SEND_BYTES (64 * 1024) +#define DEFAULT_VSOCK_BUF_BYTES (256 * 1024) +#define DEFAULT_RCVLOWAT_BYTES 1 +#define DEFAULT_PORT 1234 +#define DEFAULT_CID 2 + +#define BYTES_PER_GB (1024 * 1024 * 1024ULL) +#define NSEC_PER_SEC (1000000000ULL) + +static unsigned int port = DEFAULT_PORT; +static unsigned long buf_size_bytes = DEFAULT_BUF_SIZE_BYTES; +static unsigned long vsock_buf_bytes = DEFAULT_VSOCK_BUF_BYTES; + +static inline time_t current_nsec(void) +{ + struct timespec ts; + + if (clock_gettime(CLOCK_REALTIME, &ts)) { + perror("clock_gettime"); + exit(EXIT_FAILURE); + } + + return (ts.tv_sec * NSEC_PER_SEC) + ts.tv_nsec; +} + +/* From lib/cmdline.c. */ +static unsigned long memparse(const char *ptr) +{ + char *endptr; + + unsigned long long ret = strtoull(ptr, &endptr, 0); + + switch (*endptr) { + case 'E': + case 'e': + ret <<= 10; + case 'P': + case 'p': + ret <<= 10; + case 'T': + case 't': + ret <<= 10; + case 'G': + case 'g': + ret <<= 10; + case 'M': + case 'm': + ret <<= 10; + case 'K': + case 'k': + ret <<= 10; + endptr++; + default: + break; + } + + return ret; +} + +static void vsock_increase_buf_size(int fd) +{ + if (setsockopt(fd, AF_VSOCK, SO_VM_SOCKETS_BUFFER_MAX_SIZE, + &vsock_buf_bytes, sizeof(vsock_buf_bytes))) { + perror("setsockopt"); + exit(EXIT_FAILURE); + } + + if (setsockopt(fd, AF_VSOCK, SO_VM_SOCKETS_BUFFER_SIZE, + &vsock_buf_bytes, sizeof(vsock_buf_bytes))) { + perror("setsockopt"); + exit(EXIT_FAILURE); + } +} + +static int vsock_connect(unsigned int cid, unsigned int port) +{ + union { + struct sockaddr sa; + struct sockaddr_vm svm; + } addr = { + .svm = { + .svm_family = AF_VSOCK, + .svm_port = port, + .svm_cid = cid, + }, + }; + int fd; + + fd = socket(AF_VSOCK, SOCK_STREAM, 0); + + if (fd < 0) + return -1; + + vsock_increase_buf_size(fd); + + if (connect(fd, &addr.sa, sizeof(addr.svm)) < 0) { + close(fd); + return -1; + } + + return fd; +} + +static float get_gbps(unsigned long bytes, time_t ns_delta) +{ + return ((float)bytes / BYTES_PER_GB) / + ((float)ns_delta / NSEC_PER_SEC); +} + +static void run_sender(unsigned long to_send_bytes) +{ + time_t tx_begin_ns; + size_t total_send; + int client_fd; + char *data; + int fd; + union { + struct sockaddr sa; + struct sockaddr_vm svm; + } addr = { + .svm = { + .svm_family = AF_VSOCK, + .svm_port = port, + .svm_cid = VMADDR_CID_ANY, + }, + }; + union { + struct sockaddr sa; + struct sockaddr_vm svm; + } clientaddr; + + socklen_t clientaddr_len = sizeof(clientaddr.svm); + + printf("Run as sender\n"); + printf("Listen port %u\n", port); + printf("Send %lu bytes\n", to_send_bytes); + printf("TX buffer %lu bytes\n", buf_size_bytes); + printf("Peer buffer %lu bytes\n", vsock_buf_bytes); + + fd = socket(AF_VSOCK, SOCK_STREAM, 0); + + if (fd < 0) { + perror("socket"); + exit(EXIT_FAILURE); + } + + if (bind(fd, &addr.sa, sizeof(addr.svm)) < 0) { + perror("bind"); + exit(EXIT_FAILURE); + } + + if (listen(fd, 1) < 0) { + perror("listen"); + exit(EXIT_FAILURE); + } + + client_fd = accept(fd, &clientaddr.sa, &clientaddr_len); + + if (client_fd < 0) { + perror("accept"); + exit(EXIT_FAILURE); + } + + vsock_increase_buf_size(client_fd); + + data = malloc(buf_size_bytes); + + if (!data) { + printf("malloc failed\n"); + exit(EXIT_FAILURE); + } + + memset(data, 0, buf_size_bytes); + total_send = 0; + tx_begin_ns = current_nsec(); + + while (total_send < to_send_bytes) { + ssize_t sent; + + sent = write(client_fd, data, buf_size_bytes); + + if (sent <= 0) { + perror("write"); + exit(EXIT_FAILURE); + } + + total_send += sent; + } + + printf("tx performance: %f Gb/s\n", + get_gbps(total_send, current_nsec() - tx_begin_ns)); + + close(client_fd); + close(fd); + + free(data); +} + +static void run_receiver(int peer_cid, unsigned long rcvlowat_bytes) +{ + unsigned int read_cnt; + time_t rx_begin_ns; + time_t in_read_ns; + size_t total_recv; + void *data; + int fd; + + printf("Run as receiver\n"); + printf("Connect to %i:%u\n", peer_cid, port); + printf("RX buffer %lu bytes\n", buf_size_bytes); + printf("Peer buffer %lu bytes\n", vsock_buf_bytes); + printf("SO_RCVLOWAT %lu bytes\n", rcvlowat_bytes); + + fd = vsock_connect(peer_cid, port); + + if (fd < 0) { + perror("socket"); + exit(EXIT_FAILURE); + } + + if (setsockopt(fd, SOL_SOCKET, SO_RCVLOWAT, + &rcvlowat_bytes, + sizeof(rcvlowat_bytes))) { + perror("setsockopt"); + exit(EXIT_FAILURE); + } + + data = mmap(NULL, buf_size_bytes, PROT_READ | PROT_WRITE, + MAP_ANONYMOUS | MAP_PRIVATE | MAP_POPULATE, -1, 0); + + if (data == MAP_FAILED) { + perror("mmap"); + exit(EXIT_FAILURE); + } + + read_cnt = 0; + in_read_ns = 0; + total_recv = 0; + rx_begin_ns = current_nsec(); + + while (1) { + struct pollfd fds = { 0 }; + + fds.fd = fd; + fds.events = POLLIN | POLLERR | POLLHUP | + POLLRDHUP | POLLNVAL; + + if (poll(&fds, 1, -1) < 0) { + perror("poll"); + exit(EXIT_FAILURE); + } + + if (fds.revents & POLLERR) { + printf("'poll()' error\n"); + exit(EXIT_FAILURE); + } + + if (fds.revents & POLLIN) { + ssize_t bytes_read; + time_t t; + + t = current_nsec(); + bytes_read = read(fd, data, buf_size_bytes); + in_read_ns += (current_nsec() - t); + read_cnt++; + + if (!bytes_read) + break; + + if (bytes_read < 0) { + perror("recv"); + exit(EXIT_FAILURE); + } + + total_recv += bytes_read; + } + + if (fds.revents & (POLLHUP | POLLRDHUP)) + break; + } + + printf("rx performance: %f Gb/s\n", + get_gbps(total_recv, current_nsec() - rx_begin_ns)); + printf("total time in 'read()': %f sec\n", (float)in_read_ns / NSEC_PER_SEC); + printf("POLLIN wakeups: %i\n", read_cnt); + printf("average time in 'read()': %f ns\n", (float)in_read_ns / read_cnt); + + munmap(data, buf_size_bytes); + close(fd); +} + +static const char optstring[] = ""; +static const struct option longopts[] = { + { + .name = "help", + .has_arg = no_argument, + .val = 'H', + }, + { + .name = "sender", + .has_arg = no_argument, + .val = 'S', + }, + { + .name = "port", + .has_arg = required_argument, + .val = 'P', + }, + { + .name = "cid", + .has_arg = required_argument, + .val = 'C', + }, + { + .name = "mb", + .has_arg = required_argument, + .val = 'M', + }, + { + .name = "buf-size", + .has_arg = required_argument, + .val = 'B', + }, + { + .name = "vsk-size", + .has_arg = required_argument, + .val = 'V', + }, + { + .name = "so_rcvlowat", + .has_arg = required_argument, + .val = 'R', + }, + {}, +}; + +static void usage(void) +{ + printf("Help:\n" + "\n" + "This is benchmarking utility, to test vsock performance.\n" + "It runs in two modes: sender or receiver. In sender mode, it waits\n" + "connection from receiver, and when established, sender starts data\n" + "transmission.\n" + "\n" + "Options:\n" + " --help This help message\n" + " --sender Sender mode(receiver default)\n" + " --port Port (%d)\n" + " --cid CID of the peer (%d)\n" + " --mb Bytes to send (%d)\n" + " --buf-size Rx/Tx buffer size (%d). In sender mode\n" + " it is size of buffer passed to 'write()'.\n" + " In receiver mode it is size of buffer passed\n" + " to 'read()'.\n" + " --vsk-size Socket buffer size (%d)\n" + " --so_rcvlowat SO_RCVLOWAT (%d)\n" + "\n", DEFAULT_PORT, DEFAULT_CID, DEFAULT_TO_SEND_BYTES, + DEFAULT_BUF_SIZE_BYTES, DEFAULT_VSOCK_BUF_BYTES, + DEFAULT_RCVLOWAT_BYTES); + exit(EXIT_FAILURE); +} + +static long strtolx(const char *arg) +{ + long value; + char *end; + + value = strtol(arg, &end, 10); + + if (end != arg + strlen(arg)) + usage(); + + return value; +} + +int main(int argc, char **argv) +{ + unsigned long to_send_bytes = DEFAULT_TO_SEND_BYTES; + unsigned long rcvlowat_bytes = DEFAULT_RCVLOWAT_BYTES; + bool receiver_mode = true; + int peer_cid = DEFAULT_CID; + + while (1) { + int opt = getopt_long(argc, argv, optstring, longopts, NULL); + + if (opt == -1) + break; + + switch (opt) { + case 'V': /* Peer buffer size. */ + vsock_buf_bytes = memparse(optarg); + break; + case 'R': /* SO_RCVLOWAT value. */ + rcvlowat_bytes = memparse(optarg); + break; + case 'C': /* CID to connect to. */ + peer_cid = strtolx(optarg); + break; + case 'P': /* Port to connect to. */ + port = strtolx(optarg); + break; + case 'M': /* Bytes to send. */ + to_send_bytes = memparse(optarg); + break; + case 'B': /* Size of rx/tx buffer. */ + buf_size_bytes = memparse(optarg); + break; + case 'S': /* Sender mode. */ + receiver_mode = false; + break; + case 'H': /* Help. */ + usage(); + break; + default: + usage(); + } + } + + if (receiver_mode) + run_receiver(peer_cid, rcvlowat_bytes); + else + run_sender(to_send_bytes); + + return 0; +}