VSOCK: add tools/testing/vsock/vsock_diag_test
This patch adds tests for the vsock_diag.ko module. These tests are not self-tests because they require manual set up of a KVM or VMware guest. Please see tools/testing/vsock/README for instructions. The control.h and timeout.h infrastructure can be used for additional AF_VSOCK tests in the future. Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Stefan Hajnoczi
David S. Miller
Родитель
413a4317ac
Коммит
0b02503384
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@ -14294,6 +14294,7 @@ F: net/vmw_vsock/virtio_transport.c
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F: drivers/net/vsockmon.c
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F: drivers/vhost/vsock.c
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F: drivers/vhost/vsock.h
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F: tools/testing/vsock/
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VIRTIO CONSOLE DRIVER
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M: Amit Shah <amit@kernel.org>
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@ -0,0 +1,2 @@
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*.d
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vsock_diag_test
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@ -0,0 +1,9 @@
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all: test
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test: vsock_diag_test
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vsock_diag_test: vsock_diag_test.o timeout.o control.o
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CFLAGS += -g -O2 -Werror -Wall -I. -I../../include/uapi -I../../include -Wno-pointer-sign -fno-strict-overflow -fno-strict-aliasing -fno-common -MMD -U_FORTIFY_SOURCE -D_GNU_SOURCE
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.PHONY: all test clean
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clean:
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${RM} *.o *.d vsock_diag_test
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-include *.d
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@ -0,0 +1,36 @@
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AF_VSOCK test suite
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-------------------
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These tests exercise net/vmw_vsock/ host<->guest sockets for VMware, KVM, and
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Hyper-V.
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The following tests are available:
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* vsock_diag_test - vsock_diag.ko module for listing open sockets
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The following prerequisite steps are not automated and must be performed prior
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to running tests:
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1. Build the kernel and these tests.
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2. Install the kernel and tests on the host.
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3. Install the kernel and tests inside the guest.
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4. Boot the guest and ensure that the AF_VSOCK transport is enabled.
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Invoke test binaries in both directions as follows:
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# host=server, guest=client
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(host)# $TEST_BINARY --mode=server \
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--control-port=1234 \
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--peer-cid=3
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(guest)# $TEST_BINARY --mode=client \
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--control-host=$HOST_IP \
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--control-port=1234 \
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--peer-cid=2
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# host=client, guest=server
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(guest)# $TEST_BINARY --mode=server \
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--control-port=1234 \
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--peer-cid=2
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(host)# $TEST_BINARY --mode=client \
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--control-port=$GUEST_IP \
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--control-port=1234 \
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--peer-cid=3
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@ -0,0 +1,219 @@
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/* Control socket for client/server test execution
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*
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* Copyright (C) 2017 Red Hat, Inc.
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*
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* Author: Stefan Hajnoczi <stefanha@redhat.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; version 2
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* of the License.
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*/
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/* The client and server may need to coordinate to avoid race conditions like
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* the client attempting to connect to a socket that the server is not
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* listening on yet. The control socket offers a communications channel for
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* such coordination tasks.
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*
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* If the client calls control_expectln("LISTENING"), then it will block until
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* the server calls control_writeln("LISTENING"). This provides a simple
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* mechanism for coordinating between the client and the server.
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*/
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#include <errno.h>
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#include <netdb.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include "timeout.h"
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#include "control.h"
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static int control_fd = -1;
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/* Open the control socket, either in server or client mode */
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void control_init(const char *control_host,
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const char *control_port,
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bool server)
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{
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struct addrinfo hints = {
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.ai_socktype = SOCK_STREAM,
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};
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struct addrinfo *result = NULL;
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struct addrinfo *ai;
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int ret;
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ret = getaddrinfo(control_host, control_port, &hints, &result);
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if (ret != 0) {
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fprintf(stderr, "%s\n", gai_strerror(ret));
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exit(EXIT_FAILURE);
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}
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for (ai = result; ai; ai = ai->ai_next) {
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int fd;
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int val = 1;
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fd = socket(ai->ai_family, ai->ai_socktype, ai->ai_protocol);
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if (fd < 0)
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continue;
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if (!server) {
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if (connect(fd, ai->ai_addr, ai->ai_addrlen) < 0)
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goto next;
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control_fd = fd;
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printf("Control socket connected to %s:%s.\n",
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control_host, control_port);
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break;
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}
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if (setsockopt(fd, SOL_SOCKET, SO_REUSEADDR,
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&val, sizeof(val)) < 0) {
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perror("setsockopt");
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exit(EXIT_FAILURE);
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}
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if (bind(fd, ai->ai_addr, ai->ai_addrlen) < 0)
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goto next;
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if (listen(fd, 1) < 0)
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goto next;
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printf("Control socket listening on %s:%s\n",
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control_host, control_port);
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fflush(stdout);
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control_fd = accept(fd, NULL, 0);
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close(fd);
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if (control_fd < 0) {
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perror("accept");
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exit(EXIT_FAILURE);
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}
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printf("Control socket connection accepted...\n");
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break;
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next:
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close(fd);
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}
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if (control_fd < 0) {
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fprintf(stderr, "Control socket initialization failed. Invalid address %s:%s?\n",
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control_host, control_port);
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exit(EXIT_FAILURE);
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}
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freeaddrinfo(result);
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}
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/* Free resources */
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void control_cleanup(void)
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{
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close(control_fd);
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control_fd = -1;
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}
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/* Write a line to the control socket */
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void control_writeln(const char *str)
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{
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ssize_t len = strlen(str);
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ssize_t ret;
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timeout_begin(TIMEOUT);
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do {
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ret = send(control_fd, str, len, MSG_MORE);
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timeout_check("send");
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} while (ret < 0 && errno == EINTR);
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if (ret != len) {
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perror("send");
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exit(EXIT_FAILURE);
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}
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do {
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ret = send(control_fd, "\n", 1, 0);
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timeout_check("send");
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} while (ret < 0 && errno == EINTR);
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if (ret != 1) {
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perror("send");
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exit(EXIT_FAILURE);
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}
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timeout_end();
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}
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/* Return the next line from the control socket (without the trailing newline).
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*
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* The program terminates if a timeout occurs.
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*
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* The caller must free() the returned string.
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*/
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char *control_readln(void)
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{
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char *buf = NULL;
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size_t idx = 0;
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size_t buflen = 0;
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timeout_begin(TIMEOUT);
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for (;;) {
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ssize_t ret;
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if (idx >= buflen) {
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char *new_buf;
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new_buf = realloc(buf, buflen + 80);
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if (!new_buf) {
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perror("realloc");
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exit(EXIT_FAILURE);
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}
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buf = new_buf;
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buflen += 80;
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}
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do {
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ret = recv(control_fd, &buf[idx], 1, 0);
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timeout_check("recv");
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} while (ret < 0 && errno == EINTR);
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if (ret == 0) {
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fprintf(stderr, "unexpected EOF on control socket\n");
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exit(EXIT_FAILURE);
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}
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if (ret != 1) {
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perror("recv");
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exit(EXIT_FAILURE);
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}
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if (buf[idx] == '\n') {
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buf[idx] = '\0';
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break;
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}
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idx++;
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}
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timeout_end();
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return buf;
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}
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/* Wait until a given line is received or a timeout occurs */
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void control_expectln(const char *str)
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{
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char *line;
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line = control_readln();
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if (strcmp(str, line) != 0) {
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fprintf(stderr, "expected \"%s\" on control socket, got \"%s\"\n",
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str, line);
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exit(EXIT_FAILURE);
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}
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free(line);
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}
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@ -0,0 +1,13 @@
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#ifndef CONTROL_H
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#define CONTROL_H
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#include <stdbool.h>
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void control_init(const char *control_host, const char *control_port,
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bool server);
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void control_cleanup(void);
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void control_writeln(const char *str);
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char *control_readln(void);
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void control_expectln(const char *str);
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#endif /* CONTROL_H */
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@ -0,0 +1,64 @@
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/* Timeout API for single-threaded programs that use blocking
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* syscalls (read/write/send/recv/connect/accept).
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*
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* Copyright (C) 2017 Red Hat, Inc.
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*
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* Author: Stefan Hajnoczi <stefanha@redhat.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; version 2
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* of the License.
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*/
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/* Use the following pattern:
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*
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* timeout_begin(TIMEOUT);
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* do {
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* ret = accept(...);
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* timeout_check("accept");
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* } while (ret < 0 && ret == EINTR);
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* timeout_end();
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*/
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#include <stdlib.h>
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#include <stdbool.h>
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#include <unistd.h>
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#include <stdio.h>
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#include "timeout.h"
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static volatile bool timeout;
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/* SIGALRM handler function. Do not use sleep(2), alarm(2), or
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* setitimer(2) while using this API - they may interfere with each
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* other.
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*/
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void sigalrm(int signo)
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{
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timeout = true;
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}
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/* Start a timeout. Call timeout_check() to verify that the timeout hasn't
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* expired. timeout_end() must be called to stop the timeout. Timeouts cannot
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* be nested.
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*/
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void timeout_begin(unsigned int seconds)
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{
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alarm(seconds);
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}
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/* Exit with an error message if the timeout has expired */
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void timeout_check(const char *operation)
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{
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if (timeout) {
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fprintf(stderr, "%s timed out\n", operation);
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exit(EXIT_FAILURE);
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}
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}
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/* Stop a timeout */
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void timeout_end(void)
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{
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alarm(0);
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timeout = false;
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}
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@ -0,0 +1,14 @@
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#ifndef TIMEOUT_H
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#define TIMEOUT_H
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enum {
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/* Default timeout */
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TIMEOUT = 10 /* seconds */
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};
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void sigalrm(int signo);
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void timeout_begin(unsigned int seconds);
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void timeout_check(const char *operation);
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void timeout_end(void);
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#endif /* TIMEOUT_H */
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@ -0,0 +1,681 @@
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/*
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* vsock_diag_test - vsock_diag.ko test suite
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*
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* Copyright (C) 2017 Red Hat, Inc.
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*
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* Author: Stefan Hajnoczi <stefanha@redhat.com>
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*
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* This program is free software; you can redistribute it and/or
|
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* modify it under the terms of the GNU General Public License
|
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* as published by the Free Software Foundation; version 2
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* of the License.
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*/
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#include <getopt.h>
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#include <stdio.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include <unistd.h>
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#include <signal.h>
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#include <sys/socket.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <linux/list.h>
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#include <linux/net.h>
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#include <linux/netlink.h>
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#include <linux/sock_diag.h>
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#include <netinet/tcp.h>
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#include "../../../include/uapi/linux/vm_sockets.h"
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#include "../../../include/uapi/linux/vm_sockets_diag.h"
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#include "timeout.h"
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#include "control.h"
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enum test_mode {
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TEST_MODE_UNSET,
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TEST_MODE_CLIENT,
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TEST_MODE_SERVER
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};
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/* Per-socket status */
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struct vsock_stat {
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struct list_head list;
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struct vsock_diag_msg msg;
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};
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static const char *sock_type_str(int type)
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{
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switch (type) {
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case SOCK_DGRAM:
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return "DGRAM";
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case SOCK_STREAM:
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return "STREAM";
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default:
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return "INVALID TYPE";
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}
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}
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static const char *sock_state_str(int state)
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{
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switch (state) {
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case TCP_CLOSE:
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return "UNCONNECTED";
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case TCP_SYN_SENT:
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return "CONNECTING";
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case TCP_ESTABLISHED:
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return "CONNECTED";
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case TCP_CLOSING:
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return "DISCONNECTING";
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case TCP_LISTEN:
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return "LISTEN";
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default:
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return "INVALID STATE";
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}
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}
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static const char *sock_shutdown_str(int shutdown)
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{
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switch (shutdown) {
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case 1:
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return "RCV_SHUTDOWN";
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case 2:
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return "SEND_SHUTDOWN";
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case 3:
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return "RCV_SHUTDOWN | SEND_SHUTDOWN";
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default:
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return "0";
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}
|
||||
}
|
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|
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static void print_vsock_addr(FILE *fp, unsigned int cid, unsigned int port)
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{
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if (cid == VMADDR_CID_ANY)
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fprintf(fp, "*:");
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else
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fprintf(fp, "%u:", cid);
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|
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if (port == VMADDR_PORT_ANY)
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fprintf(fp, "*");
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else
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fprintf(fp, "%u", port);
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}
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|
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static void print_vsock_stat(FILE *fp, struct vsock_stat *st)
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{
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print_vsock_addr(fp, st->msg.vdiag_src_cid, st->msg.vdiag_src_port);
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fprintf(fp, " ");
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print_vsock_addr(fp, st->msg.vdiag_dst_cid, st->msg.vdiag_dst_port);
|
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fprintf(fp, " %s %s %s %u\n",
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sock_type_str(st->msg.vdiag_type),
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||||
sock_state_str(st->msg.vdiag_state),
|
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sock_shutdown_str(st->msg.vdiag_shutdown),
|
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st->msg.vdiag_ino);
|
||||
}
|
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|
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static void print_vsock_stats(FILE *fp, struct list_head *head)
|
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{
|
||||
struct vsock_stat *st;
|
||||
|
||||
list_for_each_entry(st, head, list)
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print_vsock_stat(fp, st);
|
||||
}
|
||||
|
||||
static struct vsock_stat *find_vsock_stat(struct list_head *head, int fd)
|
||||
{
|
||||
struct vsock_stat *st;
|
||||
struct stat stat;
|
||||
|
||||
if (fstat(fd, &stat) < 0) {
|
||||
perror("fstat");
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
list_for_each_entry(st, head, list)
|
||||
if (st->msg.vdiag_ino == stat.st_ino)
|
||||
return st;
|
||||
|
||||
fprintf(stderr, "cannot find fd %d\n", fd);
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
static void check_no_sockets(struct list_head *head)
|
||||
{
|
||||
if (!list_empty(head)) {
|
||||
fprintf(stderr, "expected no sockets\n");
|
||||
print_vsock_stats(stderr, head);
|
||||
exit(1);
|
||||
}
|
||||
}
|
||||
|
||||
static void check_num_sockets(struct list_head *head, int expected)
|
||||
{
|
||||
struct list_head *node;
|
||||
int n = 0;
|
||||
|
||||
list_for_each(node, head)
|
||||
n++;
|
||||
|
||||
if (n != expected) {
|
||||
fprintf(stderr, "expected %d sockets, found %d\n",
|
||||
expected, n);
|
||||
print_vsock_stats(stderr, head);
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
}
|
||||
|
||||
static void check_socket_state(struct vsock_stat *st, __u8 state)
|
||||
{
|
||||
if (st->msg.vdiag_state != state) {
|
||||
fprintf(stderr, "expected socket state %#x, got %#x\n",
|
||||
state, st->msg.vdiag_state);
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
}
|
||||
|
||||
static void send_req(int fd)
|
||||
{
|
||||
struct sockaddr_nl nladdr = {
|
||||
.nl_family = AF_NETLINK,
|
||||
};
|
||||
struct {
|
||||
struct nlmsghdr nlh;
|
||||
struct vsock_diag_req vreq;
|
||||
} req = {
|
||||
.nlh = {
|
||||
.nlmsg_len = sizeof(req),
|
||||
.nlmsg_type = SOCK_DIAG_BY_FAMILY,
|
||||
.nlmsg_flags = NLM_F_REQUEST | NLM_F_DUMP,
|
||||
},
|
||||
.vreq = {
|
||||
.sdiag_family = AF_VSOCK,
|
||||
.vdiag_states = ~(__u32)0,
|
||||
},
|
||||
};
|
||||
struct iovec iov = {
|
||||
.iov_base = &req,
|
||||
.iov_len = sizeof(req),
|
||||
};
|
||||
struct msghdr msg = {
|
||||
.msg_name = &nladdr,
|
||||
.msg_namelen = sizeof(nladdr),
|
||||
.msg_iov = &iov,
|
||||
.msg_iovlen = 1,
|
||||
};
|
||||
|
||||
for (;;) {
|
||||
if (sendmsg(fd, &msg, 0) < 0) {
|
||||
if (errno == EINTR)
|
||||
continue;
|
||||
|
||||
perror("sendmsg");
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
return;
|
||||
}
|
||||
}
|
||||
|
||||
static ssize_t recv_resp(int fd, void *buf, size_t len)
|
||||
{
|
||||
struct sockaddr_nl nladdr = {
|
||||
.nl_family = AF_NETLINK,
|
||||
};
|
||||
struct iovec iov = {
|
||||
.iov_base = buf,
|
||||
.iov_len = len,
|
||||
};
|
||||
struct msghdr msg = {
|
||||
.msg_name = &nladdr,
|
||||
.msg_namelen = sizeof(nladdr),
|
||||
.msg_iov = &iov,
|
||||
.msg_iovlen = 1,
|
||||
};
|
||||
ssize_t ret;
|
||||
|
||||
do {
|
||||
ret = recvmsg(fd, &msg, 0);
|
||||
} while (ret < 0 && errno == EINTR);
|
||||
|
||||
if (ret < 0) {
|
||||
perror("recvmsg");
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
static void add_vsock_stat(struct list_head *sockets,
|
||||
const struct vsock_diag_msg *resp)
|
||||
{
|
||||
struct vsock_stat *st;
|
||||
|
||||
st = malloc(sizeof(*st));
|
||||
if (!st) {
|
||||
perror("malloc");
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
st->msg = *resp;
|
||||
list_add_tail(&st->list, sockets);
|
||||
}
|
||||
|
||||
/*
|
||||
* Read vsock stats into a list.
|
||||
*/
|
||||
static void read_vsock_stat(struct list_head *sockets)
|
||||
{
|
||||
long buf[8192 / sizeof(long)];
|
||||
int fd;
|
||||
|
||||
fd = socket(AF_NETLINK, SOCK_RAW, NETLINK_SOCK_DIAG);
|
||||
if (fd < 0) {
|
||||
perror("socket");
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
send_req(fd);
|
||||
|
||||
for (;;) {
|
||||
const struct nlmsghdr *h;
|
||||
ssize_t ret;
|
||||
|
||||
ret = recv_resp(fd, buf, sizeof(buf));
|
||||
if (ret == 0)
|
||||
goto done;
|
||||
if (ret < sizeof(*h)) {
|
||||
fprintf(stderr, "short read of %zd bytes\n", ret);
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
h = (struct nlmsghdr *)buf;
|
||||
|
||||
while (NLMSG_OK(h, ret)) {
|
||||
if (h->nlmsg_type == NLMSG_DONE)
|
||||
goto done;
|
||||
|
||||
if (h->nlmsg_type == NLMSG_ERROR) {
|
||||
const struct nlmsgerr *err = NLMSG_DATA(h);
|
||||
|
||||
if (h->nlmsg_len < NLMSG_LENGTH(sizeof(*err)))
|
||||
fprintf(stderr, "NLMSG_ERROR\n");
|
||||
else {
|
||||
errno = -err->error;
|
||||
perror("NLMSG_ERROR");
|
||||
}
|
||||
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
if (h->nlmsg_type != SOCK_DIAG_BY_FAMILY) {
|
||||
fprintf(stderr, "unexpected nlmsg_type %#x\n",
|
||||
h->nlmsg_type);
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
if (h->nlmsg_len <
|
||||
NLMSG_LENGTH(sizeof(struct vsock_diag_msg))) {
|
||||
fprintf(stderr, "short vsock_diag_msg\n");
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
add_vsock_stat(sockets, NLMSG_DATA(h));
|
||||
|
||||
h = NLMSG_NEXT(h, ret);
|
||||
}
|
||||
}
|
||||
|
||||
done:
|
||||
close(fd);
|
||||
}
|
||||
|
||||
static void free_sock_stat(struct list_head *sockets)
|
||||
{
|
||||
struct vsock_stat *st;
|
||||
struct vsock_stat *next;
|
||||
|
||||
list_for_each_entry_safe(st, next, sockets, list)
|
||||
free(st);
|
||||
}
|
||||
|
||||
static void test_no_sockets(unsigned int peer_cid)
|
||||
{
|
||||
LIST_HEAD(sockets);
|
||||
|
||||
read_vsock_stat(&sockets);
|
||||
|
||||
check_no_sockets(&sockets);
|
||||
|
||||
free_sock_stat(&sockets);
|
||||
}
|
||||
|
||||
static void test_listen_socket_server(unsigned int peer_cid)
|
||||
{
|
||||
union {
|
||||
struct sockaddr sa;
|
||||
struct sockaddr_vm svm;
|
||||
} addr = {
|
||||
.svm = {
|
||||
.svm_family = AF_VSOCK,
|
||||
.svm_port = 1234,
|
||||
.svm_cid = VMADDR_CID_ANY,
|
||||
},
|
||||
};
|
||||
LIST_HEAD(sockets);
|
||||
struct vsock_stat *st;
|
||||
int fd;
|
||||
|
||||
fd = socket(AF_VSOCK, SOCK_STREAM, 0);
|
||||
|
||||
if (bind(fd, &addr.sa, sizeof(addr.svm)) < 0) {
|
||||
perror("bind");
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
if (listen(fd, 1) < 0) {
|
||||
perror("listen");
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
read_vsock_stat(&sockets);
|
||||
|
||||
check_num_sockets(&sockets, 1);
|
||||
st = find_vsock_stat(&sockets, fd);
|
||||
check_socket_state(st, TCP_LISTEN);
|
||||
|
||||
close(fd);
|
||||
free_sock_stat(&sockets);
|
||||
}
|
||||
|
||||
static void test_connect_client(unsigned int peer_cid)
|
||||
{
|
||||
union {
|
||||
struct sockaddr sa;
|
||||
struct sockaddr_vm svm;
|
||||
} addr = {
|
||||
.svm = {
|
||||
.svm_family = AF_VSOCK,
|
||||
.svm_port = 1234,
|
||||
.svm_cid = peer_cid,
|
||||
},
|
||||
};
|
||||
int fd;
|
||||
int ret;
|
||||
LIST_HEAD(sockets);
|
||||
struct vsock_stat *st;
|
||||
|
||||
control_expectln("LISTENING");
|
||||
|
||||
fd = socket(AF_VSOCK, SOCK_STREAM, 0);
|
||||
|
||||
timeout_begin(TIMEOUT);
|
||||
do {
|
||||
ret = connect(fd, &addr.sa, sizeof(addr.svm));
|
||||
timeout_check("connect");
|
||||
} while (ret < 0 && errno == EINTR);
|
||||
timeout_end();
|
||||
|
||||
if (ret < 0) {
|
||||
perror("connect");
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
read_vsock_stat(&sockets);
|
||||
|
||||
check_num_sockets(&sockets, 1);
|
||||
st = find_vsock_stat(&sockets, fd);
|
||||
check_socket_state(st, TCP_ESTABLISHED);
|
||||
|
||||
control_expectln("DONE");
|
||||
control_writeln("DONE");
|
||||
|
||||
close(fd);
|
||||
free_sock_stat(&sockets);
|
||||
}
|
||||
|
||||
static void test_connect_server(unsigned int peer_cid)
|
||||
{
|
||||
union {
|
||||
struct sockaddr sa;
|
||||
struct sockaddr_vm svm;
|
||||
} addr = {
|
||||
.svm = {
|
||||
.svm_family = AF_VSOCK,
|
||||
.svm_port = 1234,
|
||||
.svm_cid = VMADDR_CID_ANY,
|
||||
},
|
||||
};
|
||||
union {
|
||||
struct sockaddr sa;
|
||||
struct sockaddr_vm svm;
|
||||
} clientaddr;
|
||||
socklen_t clientaddr_len = sizeof(clientaddr.svm);
|
||||
LIST_HEAD(sockets);
|
||||
struct vsock_stat *st;
|
||||
int fd;
|
||||
int client_fd;
|
||||
|
||||
fd = socket(AF_VSOCK, SOCK_STREAM, 0);
|
||||
|
||||
if (bind(fd, &addr.sa, sizeof(addr.svm)) < 0) {
|
||||
perror("bind");
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
if (listen(fd, 1) < 0) {
|
||||
perror("listen");
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
control_writeln("LISTENING");
|
||||
|
||||
timeout_begin(TIMEOUT);
|
||||
do {
|
||||
client_fd = accept(fd, &clientaddr.sa, &clientaddr_len);
|
||||
timeout_check("accept");
|
||||
} while (client_fd < 0 && errno == EINTR);
|
||||
timeout_end();
|
||||
|
||||
if (client_fd < 0) {
|
||||
perror("accept");
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
if (clientaddr.sa.sa_family != AF_VSOCK) {
|
||||
fprintf(stderr, "expected AF_VSOCK from accept(2), got %d\n",
|
||||
clientaddr.sa.sa_family);
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
if (clientaddr.svm.svm_cid != peer_cid) {
|
||||
fprintf(stderr, "expected peer CID %u from accept(2), got %u\n",
|
||||
peer_cid, clientaddr.svm.svm_cid);
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
read_vsock_stat(&sockets);
|
||||
|
||||
check_num_sockets(&sockets, 2);
|
||||
find_vsock_stat(&sockets, fd);
|
||||
st = find_vsock_stat(&sockets, client_fd);
|
||||
check_socket_state(st, TCP_ESTABLISHED);
|
||||
|
||||
control_writeln("DONE");
|
||||
control_expectln("DONE");
|
||||
|
||||
close(client_fd);
|
||||
close(fd);
|
||||
free_sock_stat(&sockets);
|
||||
}
|
||||
|
||||
static struct {
|
||||
const char *name;
|
||||
void (*run_client)(unsigned int peer_cid);
|
||||
void (*run_server)(unsigned int peer_cid);
|
||||
} test_cases[] = {
|
||||
{
|
||||
.name = "No sockets",
|
||||
.run_server = test_no_sockets,
|
||||
},
|
||||
{
|
||||
.name = "Listen socket",
|
||||
.run_server = test_listen_socket_server,
|
||||
},
|
||||
{
|
||||
.name = "Connect",
|
||||
.run_client = test_connect_client,
|
||||
.run_server = test_connect_server,
|
||||
},
|
||||
{},
|
||||
};
|
||||
|
||||
static void init_signals(void)
|
||||
{
|
||||
struct sigaction act = {
|
||||
.sa_handler = sigalrm,
|
||||
};
|
||||
|
||||
sigaction(SIGALRM, &act, NULL);
|
||||
signal(SIGPIPE, SIG_IGN);
|
||||
}
|
||||
|
||||
static unsigned int parse_cid(const char *str)
|
||||
{
|
||||
char *endptr = NULL;
|
||||
unsigned long int n;
|
||||
|
||||
errno = 0;
|
||||
n = strtoul(str, &endptr, 10);
|
||||
if (errno || *endptr != '\0') {
|
||||
fprintf(stderr, "malformed CID \"%s\"\n", str);
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
return n;
|
||||
}
|
||||
|
||||
static const char optstring[] = "";
|
||||
static const struct option longopts[] = {
|
||||
{
|
||||
.name = "control-host",
|
||||
.has_arg = required_argument,
|
||||
.val = 'H',
|
||||
},
|
||||
{
|
||||
.name = "control-port",
|
||||
.has_arg = required_argument,
|
||||
.val = 'P',
|
||||
},
|
||||
{
|
||||
.name = "mode",
|
||||
.has_arg = required_argument,
|
||||
.val = 'm',
|
||||
},
|
||||
{
|
||||
.name = "peer-cid",
|
||||
.has_arg = required_argument,
|
||||
.val = 'p',
|
||||
},
|
||||
{
|
||||
.name = "help",
|
||||
.has_arg = no_argument,
|
||||
.val = '?',
|
||||
},
|
||||
{},
|
||||
};
|
||||
|
||||
static void usage(void)
|
||||
{
|
||||
fprintf(stderr, "Usage: vsock_diag_test [--help] [--control-host=<host>] --control-port=<port> --mode=client|server --peer-cid=<cid>\n"
|
||||
"\n"
|
||||
" Server: vsock_diag_test --control-port=1234 --mode=server --peer-cid=3\n"
|
||||
" Client: vsock_diag_test --control-host=192.168.0.1 --control-port=1234 --mode=client --peer-cid=2\n"
|
||||
"\n"
|
||||
"Run vsock_diag.ko tests. Must be launched in both\n"
|
||||
"guest and host. One side must use --mode=client and\n"
|
||||
"the other side must use --mode=server.\n"
|
||||
"\n"
|
||||
"A TCP control socket connection is used to coordinate tests\n"
|
||||
"between the client and the server. The server requires a\n"
|
||||
"listen address and the client requires an address to\n"
|
||||
"connect to.\n"
|
||||
"\n"
|
||||
"The CID of the other side must be given with --peer-cid=<cid>.\n");
|
||||
exit(EXIT_FAILURE);
|
||||
}
|
||||
|
||||
int main(int argc, char **argv)
|
||||
{
|
||||
const char *control_host = NULL;
|
||||
const char *control_port = NULL;
|
||||
int mode = TEST_MODE_UNSET;
|
||||
unsigned int peer_cid = VMADDR_CID_ANY;
|
||||
int i;
|
||||
|
||||
init_signals();
|
||||
|
||||
for (;;) {
|
||||
int opt = getopt_long(argc, argv, optstring, longopts, NULL);
|
||||
|
||||
if (opt == -1)
|
||||
break;
|
||||
|
||||
switch (opt) {
|
||||
case 'H':
|
||||
control_host = optarg;
|
||||
break;
|
||||
case 'm':
|
||||
if (strcmp(optarg, "client") == 0)
|
||||
mode = TEST_MODE_CLIENT;
|
||||
else if (strcmp(optarg, "server") == 0)
|
||||
mode = TEST_MODE_SERVER;
|
||||
else {
|
||||
fprintf(stderr, "--mode must be \"client\" or \"server\"\n");
|
||||
return EXIT_FAILURE;
|
||||
}
|
||||
break;
|
||||
case 'p':
|
||||
peer_cid = parse_cid(optarg);
|
||||
break;
|
||||
case 'P':
|
||||
control_port = optarg;
|
||||
break;
|
||||
case '?':
|
||||
default:
|
||||
usage();
|
||||
}
|
||||
}
|
||||
|
||||
if (!control_port)
|
||||
usage();
|
||||
if (mode == TEST_MODE_UNSET)
|
||||
usage();
|
||||
if (peer_cid == VMADDR_CID_ANY)
|
||||
usage();
|
||||
|
||||
if (!control_host) {
|
||||
if (mode != TEST_MODE_SERVER)
|
||||
usage();
|
||||
control_host = "0.0.0.0";
|
||||
}
|
||||
|
||||
control_init(control_host, control_port, mode == TEST_MODE_SERVER);
|
||||
|
||||
for (i = 0; test_cases[i].name; i++) {
|
||||
void (*run)(unsigned int peer_cid);
|
||||
|
||||
printf("%s...", test_cases[i].name);
|
||||
fflush(stdout);
|
||||
|
||||
if (mode == TEST_MODE_CLIENT)
|
||||
run = test_cases[i].run_client;
|
||||
else
|
||||
run = test_cases[i].run_server;
|
||||
|
||||
if (run)
|
||||
run(peer_cid);
|
||||
|
||||
printf("ok\n");
|
||||
}
|
||||
|
||||
control_cleanup();
|
||||
return EXIT_SUCCESS;
|
||||
}
|
||||
Загрузка…
Ссылка в новой задаче