| // SPDX-License-Identifier: GPL-2.0-only |
| /* |
| * vsock_test - vsock.ko test suite |
| * |
| * Copyright (C) 2017 Red Hat, Inc. |
| * |
| * Author: Stefan Hajnoczi <stefanha@redhat.com> |
| */ |
| |
| #include <getopt.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <errno.h> |
| #include <unistd.h> |
| #include <linux/kernel.h> |
| #include <sys/types.h> |
| #include <sys/socket.h> |
| |
| #include "timeout.h" |
| #include "control.h" |
| #include "util.h" |
| |
| static void test_stream_connection_reset(const struct test_opts *opts) |
| { |
| union { |
| struct sockaddr sa; |
| struct sockaddr_vm svm; |
| } addr = { |
| .svm = { |
| .svm_family = AF_VSOCK, |
| .svm_port = 1234, |
| .svm_cid = opts->peer_cid, |
| }, |
| }; |
| int ret; |
| int fd; |
| |
| 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 != -1) { |
| fprintf(stderr, "expected connect(2) failure, got %d\n", ret); |
| exit(EXIT_FAILURE); |
| } |
| if (errno != ECONNRESET) { |
| fprintf(stderr, "unexpected connect(2) errno %d\n", errno); |
| exit(EXIT_FAILURE); |
| } |
| |
| close(fd); |
| } |
| |
| static void test_stream_bind_only_client(const struct test_opts *opts) |
| { |
| union { |
| struct sockaddr sa; |
| struct sockaddr_vm svm; |
| } addr = { |
| .svm = { |
| .svm_family = AF_VSOCK, |
| .svm_port = 1234, |
| .svm_cid = opts->peer_cid, |
| }, |
| }; |
| int ret; |
| int fd; |
| |
| /* Wait for the server to be ready */ |
| control_expectln("BIND"); |
| |
| 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 != -1) { |
| fprintf(stderr, "expected connect(2) failure, got %d\n", ret); |
| exit(EXIT_FAILURE); |
| } |
| if (errno != ECONNRESET) { |
| fprintf(stderr, "unexpected connect(2) errno %d\n", errno); |
| exit(EXIT_FAILURE); |
| } |
| |
| /* Notify the server that the client has finished */ |
| control_writeln("DONE"); |
| |
| close(fd); |
| } |
| |
| static void test_stream_bind_only_server(const struct test_opts *opts) |
| { |
| union { |
| struct sockaddr sa; |
| struct sockaddr_vm svm; |
| } addr = { |
| .svm = { |
| .svm_family = AF_VSOCK, |
| .svm_port = 1234, |
| .svm_cid = VMADDR_CID_ANY, |
| }, |
| }; |
| int fd; |
| |
| fd = socket(AF_VSOCK, SOCK_STREAM, 0); |
| |
| if (bind(fd, &addr.sa, sizeof(addr.svm)) < 0) { |
| perror("bind"); |
| exit(EXIT_FAILURE); |
| } |
| |
| /* Notify the client that the server is ready */ |
| control_writeln("BIND"); |
| |
| /* Wait for the client to finish */ |
| control_expectln("DONE"); |
| |
| close(fd); |
| } |
| |
| static void test_stream_client_close_client(const struct test_opts *opts) |
| { |
| int fd; |
| |
| fd = vsock_stream_connect(opts->peer_cid, 1234); |
| if (fd < 0) { |
| perror("connect"); |
| exit(EXIT_FAILURE); |
| } |
| |
| send_byte(fd, 1, 0); |
| close(fd); |
| } |
| |
| static void test_stream_client_close_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); |
| } |
| |
| /* Wait for the remote to close the connection, before check |
| * -EPIPE error on send. |
| */ |
| vsock_wait_remote_close(fd); |
| |
| send_byte(fd, -EPIPE, 0); |
| recv_byte(fd, 1, 0); |
| recv_byte(fd, 0, 0); |
| close(fd); |
| } |
| |
| static void test_stream_server_close_client(const struct test_opts *opts) |
| { |
| int fd; |
| |
| fd = vsock_stream_connect(opts->peer_cid, 1234); |
| if (fd < 0) { |
| perror("connect"); |
| exit(EXIT_FAILURE); |
| } |
| |
| /* Wait for the remote to close the connection, before check |
| * -EPIPE error on send. |
| */ |
| vsock_wait_remote_close(fd); |
| |
| send_byte(fd, -EPIPE, 0); |
| recv_byte(fd, 1, 0); |
| recv_byte(fd, 0, 0); |
| close(fd); |
| } |
| |
| static void test_stream_server_close_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); |
| } |
| |
| send_byte(fd, 1, 0); |
| close(fd); |
| } |
| |
| /* With the standard socket sizes, VMCI is able to support about 100 |
| * concurrent stream connections. |
| */ |
| #define MULTICONN_NFDS 100 |
| |
| static void test_stream_multiconn_client(const struct test_opts *opts) |
| { |
| int fds[MULTICONN_NFDS]; |
| int i; |
| |
| for (i = 0; i < MULTICONN_NFDS; i++) { |
| fds[i] = vsock_stream_connect(opts->peer_cid, 1234); |
| if (fds[i] < 0) { |
| perror("connect"); |
| exit(EXIT_FAILURE); |
| } |
| } |
| |
| for (i = 0; i < MULTICONN_NFDS; i++) { |
| if (i % 2) |
| recv_byte(fds[i], 1, 0); |
| else |
| send_byte(fds[i], 1, 0); |
| } |
| |
| for (i = 0; i < MULTICONN_NFDS; i++) |
| close(fds[i]); |
| } |
| |
| static void test_stream_multiconn_server(const struct test_opts *opts) |
| { |
| int fds[MULTICONN_NFDS]; |
| int i; |
| |
| for (i = 0; i < MULTICONN_NFDS; i++) { |
| fds[i] = vsock_stream_accept(VMADDR_CID_ANY, 1234, NULL); |
| if (fds[i] < 0) { |
| perror("accept"); |
| exit(EXIT_FAILURE); |
| } |
| } |
| |
| for (i = 0; i < MULTICONN_NFDS; i++) { |
| if (i % 2) |
| send_byte(fds[i], 1, 0); |
| else |
| recv_byte(fds[i], 1, 0); |
| } |
| |
| for (i = 0; i < MULTICONN_NFDS; i++) |
| close(fds[i]); |
| } |
| |
| static void test_stream_msg_peek_client(const struct test_opts *opts) |
| { |
| int fd; |
| |
| fd = vsock_stream_connect(opts->peer_cid, 1234); |
| if (fd < 0) { |
| perror("connect"); |
| exit(EXIT_FAILURE); |
| } |
| |
| send_byte(fd, 1, 0); |
| close(fd); |
| } |
| |
| static void test_stream_msg_peek_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); |
| } |
| |
| recv_byte(fd, 1, MSG_PEEK); |
| recv_byte(fd, 1, 0); |
| close(fd); |
| } |
| |
| #define MESSAGES_CNT 7 |
| static void test_seqpacket_msg_bounds_client(const struct test_opts *opts) |
| { |
| int fd; |
| |
| fd = vsock_seqpacket_connect(opts->peer_cid, 1234); |
| if (fd < 0) { |
| perror("connect"); |
| exit(EXIT_FAILURE); |
| } |
| |
| /* Send several messages, one with MSG_EOR flag */ |
| for (int i = 0; i < MESSAGES_CNT; i++) |
| send_byte(fd, 1, 0); |
| |
| control_writeln("SENDDONE"); |
| close(fd); |
| } |
| |
| static void test_seqpacket_msg_bounds_server(const struct test_opts *opts) |
| { |
| int fd; |
| char buf[16]; |
| struct msghdr msg = {0}; |
| struct iovec iov = {0}; |
| |
| fd = vsock_seqpacket_accept(VMADDR_CID_ANY, 1234, NULL); |
| if (fd < 0) { |
| perror("accept"); |
| exit(EXIT_FAILURE); |
| } |
| |
| 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); |
| } |
| } |
| |
| close(fd); |
| } |
| |
| #define MESSAGE_TRUNC_SZ 32 |
| static void test_seqpacket_msg_trunc_client(const struct test_opts *opts) |
| { |
| int fd; |
| char buf[MESSAGE_TRUNC_SZ]; |
| |
| fd = vsock_seqpacket_connect(opts->peer_cid, 1234); |
| if (fd < 0) { |
| perror("connect"); |
| exit(EXIT_FAILURE); |
| } |
| |
| if (send(fd, buf, sizeof(buf), 0) != sizeof(buf)) { |
| perror("send failed"); |
| exit(EXIT_FAILURE); |
| } |
| |
| control_writeln("SENDDONE"); |
| close(fd); |
| } |
| |
| static void test_seqpacket_msg_trunc_server(const struct test_opts *opts) |
| { |
| int fd; |
| char buf[MESSAGE_TRUNC_SZ / 2]; |
| struct msghdr msg = {0}; |
| struct iovec iov = {0}; |
| |
| fd = vsock_seqpacket_accept(VMADDR_CID_ANY, 1234, NULL); |
| if (fd < 0) { |
| perror("accept"); |
| exit(EXIT_FAILURE); |
| } |
| |
| control_expectln("SENDDONE"); |
| iov.iov_base = buf; |
| iov.iov_len = sizeof(buf); |
| msg.msg_iov = &iov; |
| msg.msg_iovlen = 1; |
| |
| ssize_t ret = recvmsg(fd, &msg, MSG_TRUNC); |
| |
| if (ret != MESSAGE_TRUNC_SZ) { |
| printf("%zi\n", ret); |
| perror("MSG_TRUNC doesn't work"); |
| exit(EXIT_FAILURE); |
| } |
| |
| if (!(msg.msg_flags & MSG_TRUNC)) { |
| fprintf(stderr, "MSG_TRUNC expected\n"); |
| exit(EXIT_FAILURE); |
| } |
| |
| close(fd); |
| } |
| |
| static struct test_case test_cases[] = { |
| { |
| .name = "SOCK_STREAM connection reset", |
| .run_client = test_stream_connection_reset, |
| }, |
| { |
| .name = "SOCK_STREAM bind only", |
| .run_client = test_stream_bind_only_client, |
| .run_server = test_stream_bind_only_server, |
| }, |
| { |
| .name = "SOCK_STREAM client close", |
| .run_client = test_stream_client_close_client, |
| .run_server = test_stream_client_close_server, |
| }, |
| { |
| .name = "SOCK_STREAM server close", |
| .run_client = test_stream_server_close_client, |
| .run_server = test_stream_server_close_server, |
| }, |
| { |
| .name = "SOCK_STREAM multiple connections", |
| .run_client = test_stream_multiconn_client, |
| .run_server = test_stream_multiconn_server, |
| }, |
| { |
| .name = "SOCK_STREAM MSG_PEEK", |
| .run_client = test_stream_msg_peek_client, |
| .run_server = test_stream_msg_peek_server, |
| }, |
| { |
| .name = "SOCK_SEQPACKET msg bounds", |
| .run_client = test_seqpacket_msg_bounds_client, |
| .run_server = test_seqpacket_msg_bounds_server, |
| }, |
| { |
| .name = "SOCK_SEQPACKET MSG_TRUNC flag", |
| .run_client = test_seqpacket_msg_trunc_client, |
| .run_server = test_seqpacket_msg_trunc_server, |
| }, |
| {}, |
| }; |
| |
| 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 = "list", |
| .has_arg = no_argument, |
| .val = 'l', |
| }, |
| { |
| .name = "skip", |
| .has_arg = required_argument, |
| .val = 's', |
| }, |
| { |
| .name = "help", |
| .has_arg = no_argument, |
| .val = '?', |
| }, |
| {}, |
| }; |
| |
| static void usage(void) |
| { |
| fprintf(stderr, "Usage: vsock_test [--help] [--control-host=<host>] --control-port=<port> --mode=client|server --peer-cid=<cid> [--list] [--skip=<test_id>]\n" |
| "\n" |
| " Server: vsock_test --control-port=1234 --mode=server --peer-cid=3\n" |
| " Client: vsock_test --control-host=192.168.0.1 --control-port=1234 --mode=client --peer-cid=2\n" |
| "\n" |
| "Run vsock.ko tests. Must be launched in both guest\n" |
| "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" |
| "\n" |
| "Options:\n" |
| " --help This help message\n" |
| " --control-host <host> Server IP address to connect to\n" |
| " --control-port <port> Server port to listen on/connect to\n" |
| " --mode client|server Server or client mode\n" |
| " --peer-cid <cid> CID of the other side\n" |
| " --list List of tests that will be executed\n" |
| " --skip <test_id> Test ID to skip;\n" |
| " use multiple --skip options to skip more tests\n" |
| ); |
| exit(EXIT_FAILURE); |
| } |
| |
| int main(int argc, char **argv) |
| { |
| const char *control_host = NULL; |
| const char *control_port = NULL; |
| struct test_opts opts = { |
| .mode = TEST_MODE_UNSET, |
| .peer_cid = VMADDR_CID_ANY, |
| }; |
| |
| 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) |
| opts.mode = TEST_MODE_CLIENT; |
| else if (strcmp(optarg, "server") == 0) |
| opts.mode = TEST_MODE_SERVER; |
| else { |
| fprintf(stderr, "--mode must be \"client\" or \"server\"\n"); |
| return EXIT_FAILURE; |
| } |
| break; |
| case 'p': |
| opts.peer_cid = parse_cid(optarg); |
| break; |
| case 'P': |
| control_port = optarg; |
| break; |
| case 'l': |
| list_tests(test_cases); |
| break; |
| case 's': |
| skip_test(test_cases, ARRAY_SIZE(test_cases) - 1, |
| optarg); |
| break; |
| case '?': |
| default: |
| usage(); |
| } |
| } |
| |
| if (!control_port) |
| usage(); |
| if (opts.mode == TEST_MODE_UNSET) |
| usage(); |
| if (opts.peer_cid == VMADDR_CID_ANY) |
| usage(); |
| |
| if (!control_host) { |
| if (opts.mode != TEST_MODE_SERVER) |
| usage(); |
| control_host = "0.0.0.0"; |
| } |
| |
| control_init(control_host, control_port, |
| opts.mode == TEST_MODE_SERVER); |
| |
| run_tests(test_cases, &opts); |
| |
| control_cleanup(); |
| return EXIT_SUCCESS; |
| } |