VSOCK: extract utility functions from vsock_diag_test.c (df7e0e0d) · Commits · jan.koester / Linux

tools/testing/vsock/Makefile

+1 −1

Original line number	Diff line number	Diff line
		# SPDX-License-Identifier: GPL-2.0-only
		all: test
		test: vsock_diag_test
		vsock_diag_test: vsock_diag_test.o timeout.o control.o
		vsock_diag_test: vsock_diag_test.o timeout.o control.o util.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

tools/testing/vsock/util.c

0 → 100644

+66 −0

Original line number	Diff line number	Diff line
		// SPDX-License-Identifier: GPL-2.0-only
		/*
		* vsock test utilities
		*
		* Copyright (C) 2017 Red Hat, Inc.
		*
		* Author: Stefan Hajnoczi <stefanha@redhat.com>
		*/

		#include <errno.h>
		#include <stdio.h>
		#include <stdlib.h>
		#include <signal.h>

		#include "timeout.h"
		#include "util.h"

		/* Install signal handlers */
		void init_signals(void)
		{
		struct sigaction act = {
		.sa_handler = sigalrm,
		};

		sigaction(SIGALRM, &act, NULL);
		signal(SIGPIPE, SIG_IGN);
		}

		/* Parse a CID in string representation */
		unsigned int parse_cid(const char *str)
		{
		char *endptr = NULL;
		unsigned long n;

		errno = 0;
		n = strtoul(str, &endptr, 10);
		if (errno \|\| *endptr != '\0') {
		fprintf(stderr, "malformed CID \"%s\"\n", str);
		exit(EXIT_FAILURE);
		}
		return n;
		}

		/* Run test cases. The program terminates if a failure occurs. */
		void run_tests(const struct test_case *test_cases,
		const struct test_opts *opts)
		{
		int i;

		for (i = 0; test_cases[i].name; i++) {
		void (run)(const struct test_opts opts);

		printf("%s...", test_cases[i].name);
		fflush(stdout);

		if (opts->mode == TEST_MODE_CLIENT)
		run = test_cases[i].run_client;
		else
		run = test_cases[i].run_server;

		if (run)
		run(opts);

		printf("ok\n");
		}
		}

tools/testing/vsock/util.h

0 → 100644

+36 −0

Original line number	Diff line number	Diff line
		/* SPDX-License-Identifier: GPL-2.0-only */
		#ifndef UTIL_H
		#define UTIL_H

		/* Tests can either run as the client or the server */
		enum test_mode {
		TEST_MODE_UNSET,
		TEST_MODE_CLIENT,
		TEST_MODE_SERVER
		};

		/* Test runner options */
		struct test_opts {
		enum test_mode mode;
		unsigned int peer_cid;
		};

		/* A test case definition. Test functions must print failures to stderr and
		* terminate with exit(EXIT_FAILURE).
		*/
		struct test_case {
		const char name; / human-readable name */

		/* Called when test mode is TEST_MODE_CLIENT */
		void (run_client)(const struct test_opts opts);

		/* Called when test mode is TEST_MODE_SERVER */
		void (run_server)(const struct test_opts opts);
		};

		void init_signals(void);
		unsigned int parse_cid(const char *str);
		void run_tests(const struct test_case *test_cases,
		const struct test_opts *opts);

		#endif /* UTIL_H */

tools/testing/vsock/vsock_diag_test.c

+22 −70

Original line number	Diff line number	Diff line
		@@ -9,12 +9,10 @@

		#include <getopt.h>
		#include <stdio.h>
		#include <stdbool.h>
		#include <stdlib.h>
		#include <string.h>
		#include <errno.h>
		#include <unistd.h>
		#include <signal.h>
		#include <sys/socket.h>
		#include <sys/stat.h>
		#include <sys/types.h>
		@@ -28,12 +26,7 @@

		#include "timeout.h"
		#include "control.h"

		enum test_mode {
		TEST_MODE_UNSET,
		TEST_MODE_CLIENT,
		TEST_MODE_SERVER
		};
		#include "util.h"

		/* Per-socket status */
		struct vsock_stat {
		@@ -334,7 +327,7 @@ static void free_sock_stat(struct list_head *sockets)
		free(st);
		}

		static void test_no_sockets(unsigned int peer_cid)
		static void test_no_sockets(const struct test_opts *opts)
		{
		LIST_HEAD(sockets);

		@@ -345,7 +338,7 @@ static void test_no_sockets(unsigned int peer_cid)
		free_sock_stat(&sockets);
		}

		static void test_listen_socket_server(unsigned int peer_cid)
		static void test_listen_socket_server(const struct test_opts *opts)
		{
		union {
		struct sockaddr sa;
		@@ -383,7 +376,7 @@ static void test_listen_socket_server(unsigned int peer_cid)
		free_sock_stat(&sockets);
		}

		static void test_connect_client(unsigned int peer_cid)
		static void test_connect_client(const struct test_opts *opts)
		{
		union {
		struct sockaddr sa;
		@@ -392,7 +385,7 @@ static void test_connect_client(unsigned int peer_cid)
		.svm = {
		.svm_family = AF_VSOCK,
		.svm_port = 1234,
		.svm_cid = peer_cid,
		.svm_cid = opts->peer_cid,
		},
		};
		int fd;
		@@ -429,7 +422,7 @@ static void test_connect_client(unsigned int peer_cid)
		free_sock_stat(&sockets);
		}

		static void test_connect_server(unsigned int peer_cid)
		static void test_connect_server(const struct test_opts *opts)
		{
		union {
		struct sockaddr sa;
		@@ -481,9 +474,9 @@ static void test_connect_server(unsigned int peer_cid)
		clientaddr.sa.sa_family);
		exit(EXIT_FAILURE);
		}
		if (clientaddr.svm.svm_cid != peer_cid) {
		if (clientaddr.svm.svm_cid != opts->peer_cid) {
		fprintf(stderr, "expected peer CID %u from accept(2), got %u\n",
		peer_cid, clientaddr.svm.svm_cid);
		opts->peer_cid, clientaddr.svm.svm_cid);
		exit(EXIT_FAILURE);
		}

		@@ -502,11 +495,7 @@ static void test_connect_server(unsigned int peer_cid)
		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[] = {
		static struct test_case test_cases[] = {
		{
		.name = "No sockets",
		.run_server = test_no_sockets,
		@@ -523,30 +512,6 @@ static struct {
		{},
		};

		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[] = {
		{
		@@ -601,9 +566,10 @@ 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;
		struct test_opts opts = {
		.mode = TEST_MODE_UNSET,
		.peer_cid = VMADDR_CID_ANY,
		};

		init_signals();

		@@ -619,16 +585,16 @@ int main(int argc, char **argv)
		break;
		case 'm':
		if (strcmp(optarg, "client") == 0)
		mode = TEST_MODE_CLIENT;
		opts.mode = TEST_MODE_CLIENT;
		else if (strcmp(optarg, "server") == 0)
		mode = TEST_MODE_SERVER;
		opts.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);
		opts.peer_cid = parse_cid(optarg);
		break;
		case 'P':
		control_port = optarg;
		@@ -641,35 +607,21 @@ int main(int argc, char **argv)

		if (!control_port)
		usage();
		if (mode == TEST_MODE_UNSET)
		if (opts.mode == TEST_MODE_UNSET)
		usage();
		if (peer_cid == VMADDR_CID_ANY)
		if (opts.peer_cid == VMADDR_CID_ANY)
		usage();

		if (!control_host) {
		if (mode != TEST_MODE_SERVER)
		if (opts.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);
		control_init(control_host, control_port,
		opts.mode == TEST_MODE_SERVER);

		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");
		}
		run_tests(test_cases, &opts);

		control_cleanup();
		return EXIT_SUCCESS;