#include "qemu/osdep.h" #include #include "qemu/config-file.h" #include "qemu/module.h" #include "qemu/option.h" #include "qemu/sockets.h" #include "chardev/char-fe.h" #include "chardev/char-mux.h" #include "sysemu/sysemu.h" #include "qapi/error.h" #include "qapi/qapi-commands-char.h" #include "qapi/qmp/qdict.h" #include "qom/qom-qobject.h" #include "io/channel-socket.h" #include "qapi/qobject-input-visitor.h" #include "qapi/qapi-visit-sockets.h" #include "socket-helpers.h" static bool quit; typedef struct FeHandler { int read_count; bool is_open; int openclose_count; bool openclose_mismatch; int last_event; char read_buf[128]; } FeHandler; static void main_loop(void) { quit = false; do { main_loop_wait(false); } while (!quit); } static int fe_can_read(void *opaque) { FeHandler *h = opaque; return sizeof(h->read_buf) - h->read_count; } static void fe_read(void *opaque, const uint8_t *buf, int size) { FeHandler *h = opaque; g_assert_cmpint(size, <=, fe_can_read(opaque)); memcpy(h->read_buf + h->read_count, buf, size); h->read_count += size; quit = true; } static void fe_event(void *opaque, int event) { FeHandler *h = opaque; bool new_open_state; h->last_event = event; switch (event) { case CHR_EVENT_BREAK: break; case CHR_EVENT_OPENED: case CHR_EVENT_CLOSED: h->openclose_count++; new_open_state = (event == CHR_EVENT_OPENED); if (h->is_open == new_open_state) { h->openclose_mismatch = true; } h->is_open = new_open_state; /* no break */ default: quit = true; break; } } #ifdef _WIN32 static void char_console_test_subprocess(void) { QemuOpts *opts; Chardev *chr; opts = qemu_opts_create(qemu_find_opts("chardev"), "console-label", 1, &error_abort); qemu_opt_set(opts, "backend", "console", &error_abort); chr = qemu_chr_new_from_opts(opts, NULL, NULL); g_assert_nonnull(chr); qemu_chr_write_all(chr, (const uint8_t *)"CONSOLE", 7); qemu_opts_del(opts); object_unparent(OBJECT(chr)); } static void char_console_test(void) { g_test_trap_subprocess("/char/console/subprocess", 0, 0); g_test_trap_assert_passed(); g_test_trap_assert_stdout("CONSOLE"); } #endif static void char_stdio_test_subprocess(void) { Chardev *chr; CharBackend be; int ret; chr = qemu_chr_new("label", "stdio", NULL); g_assert_nonnull(chr); qemu_chr_fe_init(&be, chr, &error_abort); qemu_chr_fe_set_open(&be, true); ret = qemu_chr_fe_write(&be, (void *)"buf", 4); g_assert_cmpint(ret, ==, 4); qemu_chr_fe_deinit(&be, true); } static void char_stdio_test(void) { g_test_trap_subprocess("/char/stdio/subprocess", 0, 0); g_test_trap_assert_passed(); g_test_trap_assert_stdout("buf"); } static void char_ringbuf_test(void) { QemuOpts *opts; Chardev *chr; CharBackend be; char *data; int ret; opts = qemu_opts_create(qemu_find_opts("chardev"), "ringbuf-label", 1, &error_abort); qemu_opt_set(opts, "backend", "ringbuf", &error_abort); qemu_opt_set(opts, "size", "5", &error_abort); chr = qemu_chr_new_from_opts(opts, NULL, NULL); g_assert_null(chr); qemu_opts_del(opts); opts = qemu_opts_create(qemu_find_opts("chardev"), "ringbuf-label", 1, &error_abort); qemu_opt_set(opts, "backend", "ringbuf", &error_abort); qemu_opt_set(opts, "size", "2", &error_abort); chr = qemu_chr_new_from_opts(opts, NULL, &error_abort); g_assert_nonnull(chr); qemu_opts_del(opts); qemu_chr_fe_init(&be, chr, &error_abort); ret = qemu_chr_fe_write(&be, (void *)"buff", 4); g_assert_cmpint(ret, ==, 4); data = qmp_ringbuf_read("ringbuf-label", 4, false, 0, &error_abort); g_assert_cmpstr(data, ==, "ff"); g_free(data); data = qmp_ringbuf_read("ringbuf-label", 4, false, 0, &error_abort); g_assert_cmpstr(data, ==, ""); g_free(data); qemu_chr_fe_deinit(&be, true); /* check alias */ opts = qemu_opts_create(qemu_find_opts("chardev"), "memory-label", 1, &error_abort); qemu_opt_set(opts, "backend", "memory", &error_abort); qemu_opt_set(opts, "size", "2", &error_abort); chr = qemu_chr_new_from_opts(opts, NULL, NULL); g_assert_nonnull(chr); object_unparent(OBJECT(chr)); qemu_opts_del(opts); } static void char_mux_test(void) { QemuOpts *opts; Chardev *chr, *base; char *data; FeHandler h1 = { 0, false, 0, false, }, h2 = { 0, false, 0, false, }; CharBackend chr_be1, chr_be2; opts = qemu_opts_create(qemu_find_opts("chardev"), "mux-label", 1, &error_abort); qemu_opt_set(opts, "backend", "ringbuf", &error_abort); qemu_opt_set(opts, "size", "128", &error_abort); qemu_opt_set(opts, "mux", "on", &error_abort); chr = qemu_chr_new_from_opts(opts, NULL, &error_abort); g_assert_nonnull(chr); qemu_opts_del(opts); qemu_chr_fe_init(&chr_be1, chr, &error_abort); qemu_chr_fe_set_handlers(&chr_be1, fe_can_read, fe_read, fe_event, NULL, &h1, NULL, true); qemu_chr_fe_init(&chr_be2, chr, &error_abort); qemu_chr_fe_set_handlers(&chr_be2, fe_can_read, fe_read, fe_event, NULL, &h2, NULL, true); qemu_chr_fe_take_focus(&chr_be2); base = qemu_chr_find("mux-label-base"); g_assert_cmpint(qemu_chr_be_can_write(base), !=, 0); qemu_chr_be_write(base, (void *)"hello", 6); g_assert_cmpint(h1.read_count, ==, 0); g_assert_cmpint(h2.read_count, ==, 6); g_assert_cmpstr(h2.read_buf, ==, "hello"); h2.read_count = 0; g_assert_cmpint(h1.last_event, !=, 42); /* should be MUX_OUT or OPENED */ g_assert_cmpint(h2.last_event, !=, 42); /* should be MUX_IN or OPENED */ /* sending event on the base broadcast to all fe, historical reasons? */ qemu_chr_be_event(base, 42); g_assert_cmpint(h1.last_event, ==, 42); g_assert_cmpint(h2.last_event, ==, 42); qemu_chr_be_event(chr, -1); g_assert_cmpint(h1.last_event, ==, 42); g_assert_cmpint(h2.last_event, ==, -1); /* switch focus */ qemu_chr_be_write(base, (void *)"\1b", 2); g_assert_cmpint(h1.last_event, ==, 42); g_assert_cmpint(h2.last_event, ==, CHR_EVENT_BREAK); qemu_chr_be_write(base, (void *)"\1c", 2); g_assert_cmpint(h1.last_event, ==, CHR_EVENT_MUX_IN); g_assert_cmpint(h2.last_event, ==, CHR_EVENT_MUX_OUT); qemu_chr_be_event(chr, -1); g_assert_cmpint(h1.last_event, ==, -1); g_assert_cmpint(h2.last_event, ==, CHR_EVENT_MUX_OUT); qemu_chr_be_write(base, (void *)"hello", 6); g_assert_cmpint(h2.read_count, ==, 0); g_assert_cmpint(h1.read_count, ==, 6); g_assert_cmpstr(h1.read_buf, ==, "hello"); h1.read_count = 0; qemu_chr_be_write(base, (void *)"\1b", 2); g_assert_cmpint(h1.last_event, ==, CHR_EVENT_BREAK); g_assert_cmpint(h2.last_event, ==, CHR_EVENT_MUX_OUT); /* open/close state and corresponding events */ g_assert_true(qemu_chr_fe_backend_open(&chr_be1)); g_assert_true(qemu_chr_fe_backend_open(&chr_be2)); g_assert_true(h1.is_open); g_assert_false(h1.openclose_mismatch); g_assert_true(h2.is_open); g_assert_false(h2.openclose_mismatch); h1.openclose_count = h2.openclose_count = 0; qemu_chr_fe_set_handlers(&chr_be1, NULL, NULL, NULL, NULL, NULL, NULL, false); qemu_chr_fe_set_handlers(&chr_be2, NULL, NULL, NULL, NULL, NULL, NULL, false); g_assert_cmpint(h1.openclose_count, ==, 0); g_assert_cmpint(h2.openclose_count, ==, 0); h1.is_open = h2.is_open = false; qemu_chr_fe_set_handlers(&chr_be1, NULL, NULL, fe_event, NULL, &h1, NULL, false); qemu_chr_fe_set_handlers(&chr_be2, NULL, NULL, fe_event, NULL, &h2, NULL, false); g_assert_cmpint(h1.openclose_count, ==, 1); g_assert_false(h1.openclose_mismatch); g_assert_cmpint(h2.openclose_count, ==, 1); g_assert_false(h2.openclose_mismatch); qemu_chr_be_event(base, CHR_EVENT_CLOSED); qemu_chr_be_event(base, CHR_EVENT_OPENED); g_assert_cmpint(h1.openclose_count, ==, 3); g_assert_false(h1.openclose_mismatch); g_assert_cmpint(h2.openclose_count, ==, 3); g_assert_false(h2.openclose_mismatch); qemu_chr_fe_set_handlers(&chr_be2, fe_can_read, fe_read, fe_event, NULL, &h2, NULL, false); qemu_chr_fe_set_handlers(&chr_be1, fe_can_read, fe_read, fe_event, NULL, &h1, NULL, false); /* remove first handler */ qemu_chr_fe_set_handlers(&chr_be1, NULL, NULL, NULL, NULL, NULL, NULL, true); qemu_chr_be_write(base, (void *)"hello", 6); g_assert_cmpint(h1.read_count, ==, 0); g_assert_cmpint(h2.read_count, ==, 0); qemu_chr_be_write(base, (void *)"\1c", 2); qemu_chr_be_write(base, (void *)"hello", 6); g_assert_cmpint(h1.read_count, ==, 0); g_assert_cmpint(h2.read_count, ==, 6); g_assert_cmpstr(h2.read_buf, ==, "hello"); h2.read_count = 0; /* print help */ qemu_chr_be_write(base, (void *)"\1?", 2); data = qmp_ringbuf_read("mux-label-base", 128, false, 0, &error_abort); g_assert_cmpint(strlen(data), !=, 0); g_free(data); qemu_chr_fe_deinit(&chr_be1, false); qemu_chr_fe_deinit(&chr_be2, true); } static void websock_server_read(void *opaque, const uint8_t *buf, int size) { g_assert_cmpint(size, ==, 5); g_assert(memcmp(buf, "world", size) == 0); quit = true; } static int websock_server_can_read(void *opaque) { return 10; } static bool websock_check_http_headers(char *buf, int size) { int i; const char *ans[] = { "HTTP/1.1 101 Switching Protocols\r\n", "Server: QEMU VNC\r\n", "Upgrade: websocket\r\n", "Connection: Upgrade\r\n", "Sec-WebSocket-Accept:", "Sec-WebSocket-Protocol: binary\r\n" }; for (i = 0; i < 6; i++) { if (g_strstr_len(buf, size, ans[i]) == NULL) { return false; } } return true; } static void websock_client_read(void *opaque, const uint8_t *buf, int size) { const uint8_t ping[] = { 0x89, 0x85, /* Ping header */ 0x07, 0x77, 0x9e, 0xf9, /* Masking key */ 0x6f, 0x12, 0xf2, 0x95, 0x68 /* "hello" */ }; const uint8_t binary[] = { 0x82, 0x85, /* Binary header */ 0x74, 0x90, 0xb9, 0xdf, /* Masking key */ 0x03, 0xff, 0xcb, 0xb3, 0x10 /* "world" */ }; Chardev *chr_client = opaque; if (websock_check_http_headers((char *) buf, size)) { qemu_chr_fe_write(chr_client->be, ping, sizeof(ping)); } else if (buf[0] == 0x8a && buf[1] == 0x05) { g_assert(strncmp((char *) buf + 2, "hello", 5) == 0); qemu_chr_fe_write(chr_client->be, binary, sizeof(binary)); } else { g_assert(buf[0] == 0x88 && buf[1] == 0x16); g_assert(strncmp((char *) buf + 4, "peer requested close", 10) == 0); quit = true; } } static int websock_client_can_read(void *opaque) { return 4096; } static void char_websock_test(void) { QObject *addr; QDict *qdict; const char *port; char *tmp; char *handshake_port; CharBackend be; CharBackend client_be; Chardev *chr_client; Chardev *chr = qemu_chr_new("server", "websocket:127.0.0.1:0,server,nowait", NULL); const char handshake[] = "GET / HTTP/1.1\r\n" "Upgrade: websocket\r\n" "Connection: Upgrade\r\n" "Host: localhost:%s\r\n" "Origin: http://localhost:%s\r\n" "Sec-WebSocket-Key: o9JHNiS3/0/0zYE1wa3yIw==\r\n" "Sec-WebSocket-Version: 13\r\n" "Sec-WebSocket-Protocol: binary\r\n\r\n"; const uint8_t close[] = { 0x88, 0x82, /* Close header */ 0xef, 0xaa, 0xc5, 0x97, /* Masking key */ 0xec, 0x42 /* Status code */ }; addr = object_property_get_qobject(OBJECT(chr), "addr", &error_abort); qdict = qobject_to(QDict, addr); port = qdict_get_str(qdict, "port"); tmp = g_strdup_printf("tcp:127.0.0.1:%s", port); handshake_port = g_strdup_printf(handshake, port, port); qobject_unref(qdict); qemu_chr_fe_init(&be, chr, &error_abort); qemu_chr_fe_set_handlers(&be, websock_server_can_read, websock_server_read, NULL, NULL, chr, NULL, true); chr_client = qemu_chr_new("client", tmp, NULL); qemu_chr_fe_init(&client_be, chr_client, &error_abort); qemu_chr_fe_set_handlers(&client_be, websock_client_can_read, websock_client_read, NULL, NULL, chr_client, NULL, true); g_free(tmp); qemu_chr_write_all(chr_client, (uint8_t *) handshake_port, strlen(handshake_port)); g_free(handshake_port); main_loop(); g_assert(object_property_get_bool(OBJECT(chr), "connected", &error_abort)); g_assert(object_property_get_bool(OBJECT(chr_client), "connected", &error_abort)); qemu_chr_write_all(chr_client, close, sizeof(close)); main_loop(); object_unparent(OBJECT(chr_client)); object_unparent(OBJECT(chr)); } #ifndef _WIN32 static void char_pipe_test(void) { gchar *tmp_path = g_dir_make_tmp("qemu-test-char.XXXXXX", NULL); gchar *tmp, *in, *out, *pipe = g_build_filename(tmp_path, "pipe", NULL); Chardev *chr; CharBackend be; int ret, fd; char buf[10]; FeHandler fe = { 0, }; in = g_strdup_printf("%s.in", pipe); if (mkfifo(in, 0600) < 0) { abort(); } out = g_strdup_printf("%s.out", pipe); if (mkfifo(out, 0600) < 0) { abort(); } tmp = g_strdup_printf("pipe:%s", pipe); chr = qemu_chr_new("pipe", tmp, NULL); g_assert_nonnull(chr); g_free(tmp); qemu_chr_fe_init(&be, chr, &error_abort); ret = qemu_chr_fe_write(&be, (void *)"pipe-out", 9); g_assert_cmpint(ret, ==, 9); fd = open(out, O_RDWR); ret = read(fd, buf, sizeof(buf)); g_assert_cmpint(ret, ==, 9); g_assert_cmpstr(buf, ==, "pipe-out"); close(fd); fd = open(in, O_WRONLY); ret = write(fd, "pipe-in", 8); g_assert_cmpint(ret, ==, 8); close(fd); qemu_chr_fe_set_handlers(&be, fe_can_read, fe_read, fe_event, NULL, &fe, NULL, true); main_loop(); g_assert_cmpint(fe.read_count, ==, 8); g_assert_cmpstr(fe.read_buf, ==, "pipe-in"); qemu_chr_fe_deinit(&be, true); g_assert(g_unlink(in) == 0); g_assert(g_unlink(out) == 0); g_assert(g_rmdir(tmp_path) == 0); g_free(in); g_free(out); g_free(tmp_path); g_free(pipe); } #endif typedef struct SocketIdleData { GMainLoop *loop; Chardev *chr; bool conn_expected; CharBackend *be; CharBackend *client_be; } SocketIdleData; static void socket_read_hello(void *opaque, const uint8_t *buf, int size) { g_assert_cmpint(size, ==, 5); g_assert(strncmp((char *)buf, "hello", 5) == 0); quit = true; } static int socket_can_read_hello(void *opaque) { return 10; } static int make_udp_socket(int *port) { struct sockaddr_in addr = { 0, }; socklen_t alen = sizeof(addr); int ret, sock = qemu_socket(PF_INET, SOCK_DGRAM, 0); g_assert_cmpint(sock, >, 0); addr.sin_family = AF_INET ; addr.sin_addr.s_addr = htonl(INADDR_ANY); addr.sin_port = 0; ret = bind(sock, (struct sockaddr *)&addr, sizeof(addr)); g_assert_cmpint(ret, ==, 0); ret = getsockname(sock, (struct sockaddr *)&addr, &alen); g_assert_cmpint(ret, ==, 0); *port = ntohs(addr.sin_port); return sock; } static void char_udp_test_internal(Chardev *reuse_chr, int sock) { struct sockaddr_in other; SocketIdleData d = { 0, }; Chardev *chr; CharBackend *be; socklen_t alen = sizeof(other); int ret; char buf[10]; char *tmp = NULL; if (reuse_chr) { chr = reuse_chr; be = chr->be; } else { int port; sock = make_udp_socket(&port); tmp = g_strdup_printf("udp:127.0.0.1:%d", port); chr = qemu_chr_new("client", tmp, NULL); g_assert_nonnull(chr); be = g_alloca(sizeof(CharBackend)); qemu_chr_fe_init(be, chr, &error_abort); } d.chr = chr; qemu_chr_fe_set_handlers(be, socket_can_read_hello, socket_read_hello, NULL, NULL, &d, NULL, true); ret = qemu_chr_write_all(chr, (uint8_t *)"hello", 5); g_assert_cmpint(ret, ==, 5); ret = recvfrom(sock, buf, sizeof(buf), 0, (struct sockaddr *)&other, &alen); g_assert_cmpint(ret, ==, 5); ret = sendto(sock, buf, 5, 0, (struct sockaddr *)&other, alen); g_assert_cmpint(ret, ==, 5); main_loop(); if (!reuse_chr) { close(sock); qemu_chr_fe_deinit(be, true); } g_free(tmp); } static void char_udp_test(void) { char_udp_test_internal(NULL, 0); } typedef struct { int event; bool got_pong; } CharSocketTestData; #define SOCKET_PING "Hello" #define SOCKET_PONG "World" static void char_socket_event(void *opaque, int event) { CharSocketTestData *data = opaque; data->event = event; } static void char_socket_read(void *opaque, const uint8_t *buf, int size) { CharSocketTestData *data = opaque; g_assert_cmpint(size, ==, sizeof(SOCKET_PONG)); g_assert(memcmp(buf, SOCKET_PONG, size) == 0); data->got_pong = true; } static int char_socket_can_read(void *opaque) { return sizeof(SOCKET_PONG); } static char * char_socket_addr_to_opt_str(SocketAddress *addr, bool fd_pass, const char *reconnect, bool is_listen) { if (fd_pass) { QIOChannelSocket *ioc = qio_channel_socket_new(); int fd; char *optstr; g_assert(!reconnect); if (is_listen) { qio_channel_socket_listen_sync(ioc, addr, 1, &error_abort); } else { qio_channel_socket_connect_sync(ioc, addr, &error_abort); } fd = ioc->fd; ioc->fd = -1; optstr = g_strdup_printf("socket,id=cdev0,fd=%d%s", fd, is_listen ? ",server,nowait" : ""); object_unref(OBJECT(ioc)); return optstr; } else { switch (addr->type) { case SOCKET_ADDRESS_TYPE_INET: return g_strdup_printf("socket,id=cdev0,host=%s,port=%s%s%s", addr->u.inet.host, addr->u.inet.port, reconnect ? reconnect : "", is_listen ? ",server,nowait" : ""); case SOCKET_ADDRESS_TYPE_UNIX: return g_strdup_printf("socket,id=cdev0,path=%s%s%s", addr->u.q_unix.path, reconnect ? reconnect : "", is_listen ? ",server,nowait" : ""); default: g_assert_not_reached(); } } } static void char_socket_ping_pong(QIOChannel *ioc) { char greeting[sizeof(SOCKET_PING)]; const char *response = SOCKET_PONG; qio_channel_read_all(ioc, greeting, sizeof(greeting), &error_abort); g_assert(memcmp(greeting, SOCKET_PING, sizeof(greeting)) == 0); qio_channel_write_all(ioc, response, sizeof(SOCKET_PONG), &error_abort); object_unref(OBJECT(ioc)); } static gpointer char_socket_server_client_thread(gpointer data) { SocketAddress *addr = data; QIOChannelSocket *ioc = qio_channel_socket_new(); qio_channel_socket_connect_sync(ioc, addr, &error_abort); char_socket_ping_pong(QIO_CHANNEL(ioc)); return NULL; } typedef struct { SocketAddress *addr; bool wait_connected; bool fd_pass; } CharSocketServerTestConfig; static void char_socket_server_test(gconstpointer opaque) { const CharSocketServerTestConfig *config = opaque; Chardev *chr; CharBackend be = {0}; CharSocketTestData data = {0}; QObject *qaddr; SocketAddress *addr; Visitor *v; QemuThread thread; int ret; bool reconnected = false; char *optstr; QemuOpts *opts; g_setenv("QTEST_SILENT_ERRORS", "1", 1); /* * We rely on config->addr containing "nowait", otherwise * qemu_chr_new() will block until a client connects. We * can't spawn our client thread though, because until * qemu_chr_new() returns we don't know what TCP port was * allocated by the OS */ optstr = char_socket_addr_to_opt_str(config->addr, config->fd_pass, NULL, true); opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"), optstr, true); g_assert_nonnull(opts); chr = qemu_chr_new_from_opts(opts, NULL, &error_abort); qemu_opts_del(opts); g_assert_nonnull(chr); g_assert(!object_property_get_bool(OBJECT(chr), "connected", &error_abort)); qaddr = object_property_get_qobject(OBJECT(chr), "addr", &error_abort); g_assert_nonnull(qaddr); v = qobject_input_visitor_new(qaddr); visit_type_SocketAddress(v, "addr", &addr, &error_abort); visit_free(v); qobject_unref(qaddr); qemu_chr_fe_init(&be, chr, &error_abort); reconnect: data.event = -1; qemu_chr_fe_set_handlers(&be, NULL, NULL, char_socket_event, NULL, &data, NULL, true); g_assert(data.event == -1); /* * Kick off a thread to act as the "remote" client * which just plays ping-pong with us */ qemu_thread_create(&thread, "client", char_socket_server_client_thread, addr, QEMU_THREAD_JOINABLE); g_assert(data.event == -1); if (config->wait_connected) { /* Synchronously accept a connection */ qemu_chr_wait_connected(chr, &error_abort); } else { /* * Asynchronously accept a connection when the evnt * loop reports the listener socket as readable */ while (data.event == -1) { main_loop_wait(false); } } g_assert(object_property_get_bool(OBJECT(chr), "connected", &error_abort)); g_assert(data.event == CHR_EVENT_OPENED); data.event = -1; /* Send a greeting to the client */ ret = qemu_chr_fe_write_all(&be, (const uint8_t *)SOCKET_PING, sizeof(SOCKET_PING)); g_assert_cmpint(ret, ==, sizeof(SOCKET_PING)); g_assert(data.event == -1); /* Setup a callback to receive the reply to our greeting */ qemu_chr_fe_set_handlers(&be, char_socket_can_read, char_socket_read, char_socket_event, NULL, &data, NULL, true); g_assert(data.event == CHR_EVENT_OPENED); data.event = -1; /* Wait for the client to go away */ while (data.event == -1) { main_loop_wait(false); } g_assert(!object_property_get_bool(OBJECT(chr), "connected", &error_abort)); g_assert(data.event == CHR_EVENT_CLOSED); g_assert(data.got_pong); qemu_thread_join(&thread); if (!reconnected) { reconnected = true; goto reconnect; } qapi_free_SocketAddress(addr); object_unparent(OBJECT(chr)); g_free(optstr); g_unsetenv("QTEST_SILENT_ERRORS"); } static gpointer char_socket_client_server_thread(gpointer data) { QIOChannelSocket *ioc = data; QIOChannelSocket *cioc; cioc = qio_channel_socket_accept(ioc, &error_abort); g_assert_nonnull(cioc); char_socket_ping_pong(QIO_CHANNEL(cioc)); return NULL; } typedef struct { SocketAddress *addr; const char *reconnect; bool wait_connected; bool fd_pass; } CharSocketClientTestConfig; static void char_socket_client_test(gconstpointer opaque) { const CharSocketClientTestConfig *config = opaque; QIOChannelSocket *ioc; char *optstr; Chardev *chr; CharBackend be = {0}; CharSocketTestData data = {0}; SocketAddress *addr; QemuThread thread; int ret; bool reconnected = false; QemuOpts *opts; /* * Setup a listener socket and determine get its address * so we know the TCP port for the client later */ ioc = qio_channel_socket_new(); g_assert_nonnull(ioc); qio_channel_socket_listen_sync(ioc, config->addr, 1, &error_abort); addr = qio_channel_socket_get_local_address(ioc, &error_abort); g_assert_nonnull(addr); /* * Kick off a thread to act as the "remote" client * which just plays ping-pong with us */ qemu_thread_create(&thread, "client", char_socket_client_server_thread, ioc, QEMU_THREAD_JOINABLE); /* * Populate the chardev address based on what the server * is actually listening on */ optstr = char_socket_addr_to_opt_str(addr, config->fd_pass, config->reconnect, false); opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"), optstr, true); g_assert_nonnull(opts); chr = qemu_chr_new_from_opts(opts, NULL, &error_abort); qemu_opts_del(opts); g_assert_nonnull(chr); if (config->reconnect) { /* * If reconnect is set, the connection will be * established in a background thread and we won't * see the "connected" status updated until we * run the main event loop, or call qemu_chr_wait_connected */ g_assert(!object_property_get_bool(OBJECT(chr), "connected", &error_abort)); } else { g_assert(object_property_get_bool(OBJECT(chr), "connected", &error_abort)); } qemu_chr_fe_init(&be, chr, &error_abort); reconnect: data.event = -1; qemu_chr_fe_set_handlers(&be, NULL, NULL, char_socket_event, NULL, &data, NULL, true); if (config->reconnect) { g_assert(data.event == -1); } else { g_assert(data.event == CHR_EVENT_OPENED); } if (config->wait_connected) { /* * Synchronously wait for the connection to complete * This should be a no-op if reconnect is not set. */ qemu_chr_wait_connected(chr, &error_abort); } else { /* * Asynchronously wait for the connection to be reported * as complete when the background thread reports its * status. * The loop will short-circuit if reconnect was set */ while (data.event == -1) { main_loop_wait(false); } } g_assert(data.event == CHR_EVENT_OPENED); data.event = -1; g_assert(object_property_get_bool(OBJECT(chr), "connected", &error_abort)); /* Send a greeting to the server */ ret = qemu_chr_fe_write_all(&be, (const uint8_t *)SOCKET_PING, sizeof(SOCKET_PING)); g_assert_cmpint(ret, ==, sizeof(SOCKET_PING)); g_assert(data.event == -1); /* Setup a callback to receive the reply to our greeting */ qemu_chr_fe_set_handlers(&be, char_socket_can_read, char_socket_read, char_socket_event, NULL, &data, NULL, true); g_assert(data.event == CHR_EVENT_OPENED); data.event = -1; /* Wait for the server to go away */ while (data.event == -1) { main_loop_wait(false); } g_assert(data.event == CHR_EVENT_CLOSED); g_assert(!object_property_get_bool(OBJECT(chr), "connected", &error_abort)); g_assert(data.got_pong); qemu_thread_join(&thread); if (config->reconnect && !reconnected) { reconnected = true; qemu_thread_create(&thread, "client", char_socket_client_server_thread, ioc, QEMU_THREAD_JOINABLE); goto reconnect; } object_unref(OBJECT(ioc)); object_unparent(OBJECT(chr)); qapi_free_SocketAddress(addr); g_free(optstr); } static void count_closed_event(void *opaque, int event) { int *count = opaque; if (event == CHR_EVENT_CLOSED) { (*count)++; } } static void char_socket_discard_read(void *opaque, const uint8_t *buf, int size) { } static void char_socket_server_two_clients_test(gconstpointer opaque) { SocketAddress *incoming_addr = (gpointer) opaque; Chardev *chr; CharBackend be = {0}; QObject *qaddr; SocketAddress *addr; Visitor *v; char *optstr; QemuOpts *opts; QIOChannelSocket *ioc1, *ioc2; int closed = 0; g_setenv("QTEST_SILENT_ERRORS", "1", 1); /* * We rely on addr containing "nowait", otherwise * qemu_chr_new() will block until a client connects. We * can't spawn our client thread though, because until * qemu_chr_new() returns we don't know what TCP port was * allocated by the OS */ optstr = char_socket_addr_to_opt_str(incoming_addr, false, NULL, true); opts = qemu_opts_parse_noisily(qemu_find_opts("chardev"), optstr, true); g_assert_nonnull(opts); chr = qemu_chr_new_from_opts(opts, NULL, &error_abort); qemu_opts_del(opts); g_assert_nonnull(chr); g_assert(!object_property_get_bool(OBJECT(chr), "connected", &error_abort)); qaddr = object_property_get_qobject(OBJECT(chr), "addr", &error_abort); g_assert_nonnull(qaddr); v = qobject_input_visitor_new(qaddr); visit_type_SocketAddress(v, "addr", &addr, &error_abort); visit_free(v); qobject_unref(qaddr); qemu_chr_fe_init(&be, chr, &error_abort); qemu_chr_fe_set_handlers(&be, char_socket_can_read, char_socket_discard_read, count_closed_event, NULL, &closed, NULL, true); ioc1 = qio_channel_socket_new(); qio_channel_socket_connect_sync(ioc1, addr, &error_abort); qemu_chr_wait_connected(chr, &error_abort); /* switch the chardev to another context */ GMainContext *ctx = g_main_context_new(); qemu_chr_fe_set_handlers(&be, char_socket_can_read, char_socket_discard_read, count_closed_event, NULL, &closed, ctx, true); /* Start a second connection while the first is still connected. * It will be placed in the listen() backlog, and connect() will * succeed immediately. */ ioc2 = qio_channel_socket_new(); qio_channel_socket_connect_sync(ioc2, addr, &error_abort); object_unref(OBJECT(ioc1)); /* The two connections should now be processed serially. */ while (g_main_context_iteration(ctx, TRUE)) { if (closed == 1 && ioc2) { object_unref(OBJECT(ioc2)); ioc2 = NULL; } if (closed == 2) { break; } } qapi_free_SocketAddress(addr); object_unparent(OBJECT(chr)); g_main_context_unref(ctx); g_free(optstr); g_unsetenv("QTEST_SILENT_ERRORS"); } #ifdef HAVE_CHARDEV_SERIAL static void char_serial_test(void) { QemuOpts *opts; Chardev *chr; opts = qemu_opts_create(qemu_find_opts("chardev"), "serial-id", 1, &error_abort); qemu_opt_set(opts, "backend", "serial", &error_abort); qemu_opt_set(opts, "path", "/dev/null", &error_abort); chr = qemu_chr_new_from_opts(opts, NULL, NULL); g_assert_nonnull(chr); /* TODO: add more tests with a pty */ object_unparent(OBJECT(chr)); /* test tty alias */ qemu_opt_set(opts, "backend", "tty", &error_abort); chr = qemu_chr_new_from_opts(opts, NULL, NULL); g_assert_nonnull(chr); object_unparent(OBJECT(chr)); qemu_opts_del(opts); } #endif #ifndef _WIN32 static void char_file_fifo_test(void) { Chardev *chr; CharBackend be; char *tmp_path = g_dir_make_tmp("qemu-test-char.XXXXXX", NULL); char *fifo = g_build_filename(tmp_path, "fifo", NULL); char *out = g_build_filename(tmp_path, "out", NULL); ChardevFile file = { .in = fifo, .has_in = true, .out = out }; ChardevBackend backend = { .type = CHARDEV_BACKEND_KIND_FILE, .u.file.data = &file }; FeHandler fe = { 0, }; int fd, ret; if (mkfifo(fifo, 0600) < 0) { abort(); } fd = open(fifo, O_RDWR); ret = write(fd, "fifo-in", 8); g_assert_cmpint(ret, ==, 8); chr = qemu_chardev_new("label-file", TYPE_CHARDEV_FILE, &backend, NULL, &error_abort); qemu_chr_fe_init(&be, chr, &error_abort); qemu_chr_fe_set_handlers(&be, fe_can_read, fe_read, fe_event, NULL, &fe, NULL, true); g_assert_cmpint(fe.last_event, !=, CHR_EVENT_BREAK); qmp_chardev_send_break("label-foo", NULL); g_assert_cmpint(fe.last_event, !=, CHR_EVENT_BREAK); qmp_chardev_send_break("label-file", NULL); g_assert_cmpint(fe.last_event, ==, CHR_EVENT_BREAK); main_loop(); close(fd); g_assert_cmpint(fe.read_count, ==, 8); g_assert_cmpstr(fe.read_buf, ==, "fifo-in"); qemu_chr_fe_deinit(&be, true); g_unlink(fifo); g_free(fifo); g_unlink(out); g_free(out); g_rmdir(tmp_path); g_free(tmp_path); } #endif static void char_file_test_internal(Chardev *ext_chr, const char *filepath) { char *tmp_path = g_dir_make_tmp("qemu-test-char.XXXXXX", NULL); char *out; Chardev *chr; char *contents = NULL; ChardevFile file = {}; ChardevBackend backend = { .type = CHARDEV_BACKEND_KIND_FILE, .u.file.data = &file }; gsize length; int ret; if (ext_chr) { chr = ext_chr; out = g_strdup(filepath); file.out = out; } else { out = g_build_filename(tmp_path, "out", NULL); file.out = out; chr = qemu_chardev_new(NULL, TYPE_CHARDEV_FILE, &backend, NULL, &error_abort); } ret = qemu_chr_write_all(chr, (uint8_t *)"hello!", 6); g_assert_cmpint(ret, ==, 6); ret = g_file_get_contents(out, &contents, &length, NULL); g_assert(ret == TRUE); g_assert_cmpint(length, ==, 6); g_assert(strncmp(contents, "hello!", 6) == 0); if (!ext_chr) { object_unref(OBJECT(chr)); g_unlink(out); } g_free(contents); g_rmdir(tmp_path); g_free(tmp_path); g_free(out); } static void char_file_test(void) { char_file_test_internal(NULL, NULL); } static void char_null_test(void) { Error *err = NULL; Chardev *chr; CharBackend be; int ret; chr = qemu_chr_find("label-null"); g_assert_null(chr); chr = qemu_chr_new("label-null", "null", NULL); chr = qemu_chr_find("label-null"); g_assert_nonnull(chr); g_assert(qemu_chr_has_feature(chr, QEMU_CHAR_FEATURE_FD_PASS) == false); g_assert(qemu_chr_has_feature(chr, QEMU_CHAR_FEATURE_RECONNECTABLE) == false); /* check max avail */ qemu_chr_fe_init(&be, chr, &error_abort); qemu_chr_fe_init(&be, chr, &err); error_free_or_abort(&err); /* deinit & reinit */ qemu_chr_fe_deinit(&be, false); qemu_chr_fe_init(&be, chr, &error_abort); qemu_chr_fe_set_open(&be, true); qemu_chr_fe_set_handlers(&be, fe_can_read, fe_read, fe_event, NULL, NULL, NULL, true); ret = qemu_chr_fe_write(&be, (void *)"buf", 4); g_assert_cmpint(ret, ==, 4); qemu_chr_fe_deinit(&be, true); } static void char_invalid_test(void) { Chardev *chr; g_setenv("QTEST_SILENT_ERRORS", "1", 1); chr = qemu_chr_new("label-invalid", "invalid", NULL); g_assert_null(chr); g_unsetenv("QTEST_SILENT_ERRORS"); } static int chardev_change(void *opaque) { return 0; } static int chardev_change_denied(void *opaque) { return -1; } static void char_hotswap_test(void) { char *chr_args; Chardev *chr; CharBackend be; gchar *tmp_path = g_dir_make_tmp("qemu-test-char.XXXXXX", NULL); char *filename = g_build_filename(tmp_path, "file", NULL); ChardevFile file = { .out = filename }; ChardevBackend backend = { .type = CHARDEV_BACKEND_KIND_FILE, .u.file.data = &file }; ChardevReturn *ret; int port; int sock = make_udp_socket(&port); g_assert_cmpint(sock, >, 0); chr_args = g_strdup_printf("udp:127.0.0.1:%d", port); chr = qemu_chr_new("chardev", chr_args, NULL); qemu_chr_fe_init(&be, chr, &error_abort); /* check that chardev operates correctly */ char_udp_test_internal(chr, sock); /* set the handler that denies the hotswap */ qemu_chr_fe_set_handlers(&be, NULL, NULL, NULL, chardev_change_denied, NULL, NULL, true); /* now, change is denied and has to keep the old backend operating */ ret = qmp_chardev_change("chardev", &backend, NULL); g_assert(!ret); g_assert(be.chr == chr); char_udp_test_internal(chr, sock); /* now allow the change */ qemu_chr_fe_set_handlers(&be, NULL, NULL, NULL, chardev_change, NULL, NULL, true); /* has to succeed now */ ret = qmp_chardev_change("chardev", &backend, &error_abort); g_assert(be.chr != chr); close(sock); chr = be.chr; /* run the file chardev test */ char_file_test_internal(chr, filename); object_unparent(OBJECT(chr)); qapi_free_ChardevReturn(ret); g_unlink(filename); g_free(filename); g_rmdir(tmp_path); g_free(tmp_path); g_free(chr_args); } int main(int argc, char **argv) { bool has_ipv4, has_ipv6; qemu_init_main_loop(&error_abort); socket_init(); g_test_init(&argc, &argv, NULL); if (socket_check_protocol_support(&has_ipv4, &has_ipv6) < 0) { g_printerr("socket_check_protocol_support() failed\n"); goto end; } module_call_init(MODULE_INIT_QOM); qemu_add_opts(&qemu_chardev_opts); g_test_add_func("/char/null", char_null_test); g_test_add_func("/char/invalid", char_invalid_test); g_test_add_func("/char/ringbuf", char_ringbuf_test); g_test_add_func("/char/mux", char_mux_test); #ifdef _WIN32 g_test_add_func("/char/console/subprocess", char_console_test_subprocess); g_test_add_func("/char/console", char_console_test); #endif g_test_add_func("/char/stdio/subprocess", char_stdio_test_subprocess); g_test_add_func("/char/stdio", char_stdio_test); #ifndef _WIN32 g_test_add_func("/char/pipe", char_pipe_test); #endif g_test_add_func("/char/file", char_file_test); #ifndef _WIN32 g_test_add_func("/char/file-fifo", char_file_fifo_test); #endif SocketAddress tcpaddr = { .type = SOCKET_ADDRESS_TYPE_INET, .u.inet.host = (char *)"127.0.0.1", .u.inet.port = (char *)"0", }; #ifndef WIN32 SocketAddress unixaddr = { .type = SOCKET_ADDRESS_TYPE_UNIX, .u.q_unix.path = (char *)"test-char.sock", }; #endif #define SOCKET_SERVER_TEST(name, addr) \ CharSocketServerTestConfig server1 ## name = \ { addr, false, false }; \ CharSocketServerTestConfig server2 ## name = \ { addr, true, false }; \ CharSocketServerTestConfig server3 ## name = \ { addr, false, true }; \ CharSocketServerTestConfig server4 ## name = \ { addr, true, true }; \ g_test_add_data_func("/char/socket/server/mainloop/" # name, \ &server1 ##name, char_socket_server_test); \ g_test_add_data_func("/char/socket/server/wait-conn/" # name, \ &server2 ##name, char_socket_server_test); \ g_test_add_data_func("/char/socket/server/mainloop-fdpass/" # name, \ &server3 ##name, char_socket_server_test); \ g_test_add_data_func("/char/socket/server/wait-conn-fdpass/" # name, \ &server4 ##name, char_socket_server_test) #define SOCKET_CLIENT_TEST(name, addr) \ CharSocketClientTestConfig client1 ## name = \ { addr, NULL, false, false }; \ CharSocketClientTestConfig client2 ## name = \ { addr, NULL, true, false }; \ CharSocketClientTestConfig client3 ## name = \ { addr, ",reconnect=1", false }; \ CharSocketClientTestConfig client4 ## name = \ { addr, ",reconnect=1", true }; \ CharSocketClientTestConfig client5 ## name = \ { addr, NULL, false, true }; \ CharSocketClientTestConfig client6 ## name = \ { addr, NULL, true, true }; \ g_test_add_data_func("/char/socket/client/mainloop/" # name, \ &client1 ##name, char_socket_client_test); \ g_test_add_data_func("/char/socket/client/wait-conn/" # name, \ &client2 ##name, char_socket_client_test); \ g_test_add_data_func("/char/socket/client/mainloop-reconnect/" # name, \ &client3 ##name, char_socket_client_test); \ g_test_add_data_func("/char/socket/client/wait-conn-reconnect/" # name, \ &client4 ##name, char_socket_client_test); \ g_test_add_data_func("/char/socket/client/mainloop-fdpass/" # name, \ &client5 ##name, char_socket_client_test); \ g_test_add_data_func("/char/socket/client/wait-conn-fdpass/" # name, \ &client6 ##name, char_socket_client_test) if (has_ipv4) { SOCKET_SERVER_TEST(tcp, &tcpaddr); SOCKET_CLIENT_TEST(tcp, &tcpaddr); g_test_add_data_func("/char/socket/server/two-clients/tcp", &tcpaddr, char_socket_server_two_clients_test); } #ifndef WIN32 SOCKET_SERVER_TEST(unix, &unixaddr); SOCKET_CLIENT_TEST(unix, &unixaddr); g_test_add_data_func("/char/socket/server/two-clients/unix", &unixaddr, char_socket_server_two_clients_test); #endif g_test_add_func("/char/udp", char_udp_test); #ifdef HAVE_CHARDEV_SERIAL g_test_add_func("/char/serial", char_serial_test); #endif g_test_add_func("/char/hotswap", char_hotswap_test); g_test_add_func("/char/websocket", char_websock_test); end: return g_test_run(); }