예제 #1
0
static void wpa_cli_recv_pending(struct wpa_ctrl *ctrl, int in_read,
				 int action_monitor)
{
	int first = 1;
	if (ctrl == NULL) {
		wpa_cli_reconnect();
		return;
	}
	while (wpa_ctrl_pending(ctrl) > 0) {
		char buf[256];
		size_t len = sizeof(buf) - 1;
		if (wpa_ctrl_recv(ctrl, buf, &len) == 0) {
			buf[len] = '\0';
			if (action_monitor)
				wpa_cli_action_process(buf);
			else {
				if (in_read && first)
					printf("\n");
				first = 0;
				printf("%s\n", buf);
			}
		} else {
			printf("Could not read pending message.\n");
			break;
		}
	}

	if (wpa_ctrl_pending(ctrl) < 0) {
		printf("Connection to wpa_supplicant lost - trying to "
		       "reconnect\n");
		wpa_cli_reconnect();
	}
}
static void wpa_cli_alarm(int sig)
{
	if (ctrl_conn && _wpa_ctrl_command(ctrl_conn, "PING", 0)) {
		printf("Connection to wpa_supplicant lost - trying to "
		       "reconnect\n");
		wpa_cli_close_connection();
	}
#ifdef ANDROID
	if (!monitor_conn)
		wpa_cli_reconnect();
	if (monitor_conn)
		wpa_cli_recv_pending(monitor_conn, 1, 0);
#else
	if (!ctrl_conn)
		wpa_cli_reconnect();
	if (ctrl_conn)
		wpa_cli_recv_pending(ctrl_conn, 1, 0);
#endif
	alarm(ping_interval);
}
예제 #3
0
static void wpa_cli_alarm(int sig)
{
	if (ctrl_conn && _wpa_ctrl_command(ctrl_conn, "PING", 0)) {
		printf("Connection to wpa_supplicant lost - trying to "
		       "reconnect\n");
		wpa_cli_close_connection();
	}
	if (!monitor_conn)
		wpa_cli_reconnect();
	if (monitor_conn)
		wpa_cli_recv_pending(monitor_conn, 1, 0);
	alarm(1);
}
static void wpa_cli_reconnect(void)
{
	wpa_cli_close_connection();
	ctrl_conn = wpa_cli_open_connection(ctrl_ifname);
	if (ctrl_conn) {
		printf("Connection to wpa_supplicant re-established\n");
#ifdef ANDROID
		if (wpa_ctrl_attach(monitor_conn) == 0) {
#else
		if (wpa_ctrl_attach(ctrl_conn) == 0) {
#endif
			wpa_cli_attached = 1;
		} else {
			printf("Warning: Failed to attach to "
			       "wpa_supplicant.\n");
		}
	}
}


static void wpa_cli_recv_pending(struct wpa_ctrl *ctrl, int in_read,
				 int action_monitor)
{
	int first = 1;
#ifdef ANDROID
	if (ctrl == NULL) {
#else
	if (ctrl_conn == NULL) {
#endif 
		wpa_cli_reconnect();
		return;
	}
	while (wpa_ctrl_pending(ctrl) > 0) {
		char buf[256];
		size_t len = sizeof(buf) - 1;
		if (wpa_ctrl_recv(ctrl, buf, &len) == 0) {
			buf[len] = '\0';
			if (action_monitor)
				wpa_cli_action_process(buf);
			else {
				if (in_read && first)
					printf("\n");
				first = 0;
				printf("%s\n", buf);
			}
		} else {
			printf("Could not read pending message.\n");
			break;
		}
	}

	if (wpa_ctrl_pending(ctrl) < 0) {
		printf("Connection to wpa_supplicant lost - trying to "
		       "reconnect\n");
		wpa_cli_reconnect();
	}
}


#ifdef CONFIG_READLINE
static char * wpa_cli_cmd_gen(const char *text, int state)
{
	static int i, len;
	const char *cmd;

	if (state == 0) {
		i = 0;
		len = os_strlen(text);
	}

	while ((cmd = wpa_cli_commands[i].cmd)) {
		i++;
		if (os_strncasecmp(cmd, text, len) == 0)
			return os_strdup(cmd);
	}

	return NULL;
}


static char * wpa_cli_dummy_gen(const char *text, int state)
{
	return NULL;
}


static char ** wpa_cli_completion(const char *text, int start, int end)
{
	return rl_completion_matches(text, start == 0 ?
				     wpa_cli_cmd_gen : wpa_cli_dummy_gen);
}
#endif /* CONFIG_READLINE */


static void wpa_cli_interactive(void)
{
#define max_args 10
	char cmdbuf[256], *cmd, *argv[max_args], *pos;
	int argc;
#ifdef CONFIG_READLINE
	char *home, *hfile = NULL;
#endif /* CONFIG_READLINE */

	printf("\nInteractive mode\n\n");

#ifdef CONFIG_READLINE
	rl_attempted_completion_function = wpa_cli_completion;
	home = getenv("HOME");
	if (home) {
		const char *fname = ".wpa_cli_history";
		int hfile_len = os_strlen(home) + 1 + os_strlen(fname) + 1;
		hfile = os_malloc(hfile_len);
		if (hfile) {
			int res;
			res = os_snprintf(hfile, hfile_len, "%s/%s", home,
					  fname);
			if (res >= 0 && res < hfile_len) {
				hfile[hfile_len - 1] = '\0';
				read_history(hfile);
				stifle_history(100);
			}
		}
	}
#endif /* CONFIG_READLINE */

	do {
#ifdef ANDROID
		wpa_cli_recv_pending(monitor_conn, 0, 0);
#else
		wpa_cli_recv_pending(ctrl_conn, 0, 0);
#endif
#ifndef CONFIG_NATIVE_WINDOWS
		alarm(ping_interval);
#endif /* CONFIG_NATIVE_WINDOWS */
#ifdef CONFIG_READLINE
		cmd = readline("> ");
		if (cmd && *cmd) {
			HIST_ENTRY *h;
			while (next_history())
				;
			h = previous_history();
			if (h == NULL || os_strcmp(cmd, h->line) != 0)
				add_history(cmd);
			next_history();
		}
#else /* CONFIG_READLINE */
		printf("> ");
		cmd = fgets(cmdbuf, sizeof(cmdbuf), stdin);
#endif /* CONFIG_READLINE */
#ifndef CONFIG_NATIVE_WINDOWS
		alarm(0);
#endif /* CONFIG_NATIVE_WINDOWS */
		if (cmd == NULL)
			break;
#ifdef ANDROID
		wpa_cli_recv_pending(monitor_conn, 0, 0);
#else
		wpa_cli_recv_pending(ctrl_conn, 0, 0);
#endif
		pos = cmd;
		while (*pos != '\0') {
			if (*pos == '\n') {
				*pos = '\0';
				break;
			}
			pos++;
		}
		argc = 0;
		pos = cmd;
		for (;;) {
			while (*pos == ' ')
				pos++;
			if (*pos == '\0')
				break;
			argv[argc] = pos;
			argc++;
			if (argc == max_args)
				break;
			if (*pos == '"') {
				char *pos2 = os_strrchr(pos, '"');
				if (pos2)
					pos = pos2 + 1;
			}
			while (*pos != '\0' && *pos != ' ')
				pos++;
			if (*pos == ' ')
				*pos++ = '\0';
		}
		if (argc)
			wpa_request(ctrl_conn, argc, argv);

		if (cmd != cmdbuf)
			os_free(cmd);
	} while (!wpa_cli_quit);

#ifdef CONFIG_READLINE
	if (hfile) {
		/* Save command history, excluding lines that may contain
		 * passwords. */
		HIST_ENTRY *h;
		history_set_pos(0);
		while ((h = current_history())) {
			char *p = h->line;
			while (*p == ' ' || *p == '\t')
				p++;
			if (cmd_has_sensitive_data(p)) {
				h = remove_history(where_history());
				if (h) {
					os_free(h->line);
					os_free(h->data);
					os_free(h);
				} else
					next_history();
			} else
				next_history();
		}
		write_history(hfile);
		os_free(hfile);
	}
#endif /* CONFIG_READLINE */
}