+++ /dev/null
-/*
- * wpa_supplicant - D-Bus introspection
- * Copyright (c) 2006, Dan Williams <dcbw@redhat.com> and Red Hat, Inc.
- * Copyright (c) 2009, Witold Sowa <witold.sowa@gmail.com>
- * Copyright (c) 2010, Jouni Malinen <j@w1.fi>
- *
- * This software may be distributed under the terms of the BSD license.
- * See README for more details.
- */
-
-#include "utils/includes.h"
-
-#include "utils/common.h"
-#include "utils/list.h"
-#include "utils/wpabuf.h"
-#include "dbus_common_i.h"
-#include "dbus_new_helpers.h"
-
-
-struct interfaces {
- struct dl_list list;
- char *dbus_interface;
- struct wpabuf *xml;
-};
-
-
-static struct interfaces * add_interface(struct dl_list *list,
- const char *dbus_interface)
-{
- struct interfaces *iface;
-
- dl_list_for_each(iface, list, struct interfaces, list) {
- if (os_strcmp(iface->dbus_interface, dbus_interface) == 0)
- return iface; /* already in the list */
- }
-
- iface = os_zalloc(sizeof(struct interfaces));
- if (!iface)
- return NULL;
- iface->dbus_interface = os_strdup(dbus_interface);
- iface->xml = wpabuf_alloc(15000);
- if (iface->dbus_interface == NULL || iface->xml == NULL) {
- os_free(iface->dbus_interface);
- wpabuf_free(iface->xml);
- os_free(iface);
- return NULL;
- }
- wpabuf_printf(iface->xml, "<interface name=\"%s\">", dbus_interface);
- dl_list_add_tail(list, &iface->list);
- return iface;
-}
-
-
-static void add_arg(struct wpabuf *xml, const char *name, const char *type,
- const char *direction)
-{
- wpabuf_printf(xml, "<arg name=\"%s\"", name);
- if (type)
- wpabuf_printf(xml, " type=\"%s\"", type);
- if (direction)
- wpabuf_printf(xml, " direction=\"%s\"", direction);
- wpabuf_put_str(xml, "/>");
-}
-
-
-static void add_entry(struct wpabuf *xml, const char *type, const char *name,
- const struct wpa_dbus_argument *args, int include_dir)
-{
- const struct wpa_dbus_argument *arg;
-
- if (args == NULL || args->name == NULL) {
- wpabuf_printf(xml, "<%s name=\"%s\"/>", type, name);
- return;
- }
- wpabuf_printf(xml, "<%s name=\"%s\">", type, name);
- for (arg = args; arg && arg->name; arg++) {
- add_arg(xml, arg->name, arg->type,
- include_dir ? (arg->dir == ARG_IN ? "in" : "out") :
- NULL);
- }
- wpabuf_printf(xml, "</%s>", type);
-}
-
-
-static void add_property(struct wpabuf *xml,
- const struct wpa_dbus_property_desc *dsc)
-{
- wpabuf_printf(xml, "<property name=\"%s\" type=\"%s\" "
- "access=\"%s%s\"/>",
- dsc->dbus_property, dsc->type,
- dsc->getter ? "read" : "",
- dsc->setter ? "write" : "");
-}
-
-
-static void extract_interfaces_methods(
- struct dl_list *list, const struct wpa_dbus_method_desc *methods)
-{
- const struct wpa_dbus_method_desc *dsc;
- struct interfaces *iface;
-
- for (dsc = methods; dsc && dsc->dbus_method; dsc++) {
- iface = add_interface(list, dsc->dbus_interface);
- if (iface)
- add_entry(iface->xml, "method", dsc->dbus_method,
- dsc->args, 1);
- }
-}
-
-
-static void extract_interfaces_signals(
- struct dl_list *list, const struct wpa_dbus_signal_desc *signals)
-{
- const struct wpa_dbus_signal_desc *dsc;
- struct interfaces *iface;
-
- for (dsc = signals; dsc && dsc->dbus_signal; dsc++) {
- iface = add_interface(list, dsc->dbus_interface);
- if (iface)
- add_entry(iface->xml, "signal", dsc->dbus_signal,
- dsc->args, 0);
- }
-}
-
-
-static void extract_interfaces_properties(
- struct dl_list *list, const struct wpa_dbus_property_desc *properties)
-{
- const struct wpa_dbus_property_desc *dsc;
- struct interfaces *iface;
-
- for (dsc = properties; dsc && dsc->dbus_property; dsc++) {
- iface = add_interface(list, dsc->dbus_interface);
- if (iface)
- add_property(iface->xml, dsc);
- }
-}
-
-
-/**
- * extract_interfaces - Extract interfaces from methods, signals and props
- * @list: Interface list to be filled
- * @obj_dsc: Description of object from which interfaces will be extracted
- *
- * Iterates over all methods, signals, and properties registered with an
- * object and collects all declared DBus interfaces and create interfaces'
- * node in XML root node for each. Returned list elements contain interface
- * name and XML node of corresponding interface.
- */
-static void extract_interfaces(struct dl_list *list,
- struct wpa_dbus_object_desc *obj_dsc)
-{
- extract_interfaces_methods(list, obj_dsc->methods);
- extract_interfaces_signals(list, obj_dsc->signals);
- extract_interfaces_properties(list, obj_dsc->properties);
-}
-
-
-static void add_interfaces(struct dl_list *list, struct wpabuf *xml)
-{
- struct interfaces *iface, *n;
-
- dl_list_for_each_safe(iface, n, list, struct interfaces, list) {
- if (wpabuf_len(iface->xml) + 20 < wpabuf_tailroom(xml)) {
- wpabuf_put_buf(xml, iface->xml);
- wpabuf_put_str(xml, "</interface>");
- } else {
- wpa_printf(MSG_DEBUG,
- "dbus: Not enough room for add_interfaces inspect data: tailroom %u, add %u",
- (unsigned int) wpabuf_tailroom(xml),
- (unsigned int) wpabuf_len(iface->xml));
- }
- dl_list_del(&iface->list);
- wpabuf_free(iface->xml);
- os_free(iface->dbus_interface);
- os_free(iface);
- }
-}
-
-
-static void add_child_nodes(struct wpabuf *xml, DBusConnection *con,
- const char *path)
-{
- char **children;
- int i;
-
- /* add child nodes to introspection tree */
- dbus_connection_list_registered(con, path, &children);
- for (i = 0; children[i]; i++)
- wpabuf_printf(xml, "<node name=\"%s\"/>", children[i]);
- dbus_free_string_array(children);
-}
-
-
-static void add_introspectable_interface(struct wpabuf *xml)
-{
- wpabuf_printf(xml, "<interface name=\"%s\">"
- "<method name=\"%s\">"
- "<arg name=\"data\" type=\"s\" direction=\"out\"/>"
- "</method>"
- "</interface>",
- WPA_DBUS_INTROSPECTION_INTERFACE,
- WPA_DBUS_INTROSPECTION_METHOD);
-}
-
-
-static void add_properties_interface(struct wpabuf *xml)
-{
- wpabuf_printf(xml, "<interface name=\"%s\">",
- WPA_DBUS_PROPERTIES_INTERFACE);
-
- wpabuf_printf(xml, "<method name=\"%s\">", WPA_DBUS_PROPERTIES_GET);
- add_arg(xml, "interface", "s", "in");
- add_arg(xml, "propname", "s", "in");
- add_arg(xml, "value", "v", "out");
- wpabuf_put_str(xml, "</method>");
-
- wpabuf_printf(xml, "<method name=\"%s\">", WPA_DBUS_PROPERTIES_GETALL);
- add_arg(xml, "interface", "s", "in");
- add_arg(xml, "props", "a{sv}", "out");
- wpabuf_put_str(xml, "</method>");
-
- wpabuf_printf(xml, "<method name=\"%s\">", WPA_DBUS_PROPERTIES_SET);
- add_arg(xml, "interface", "s", "in");
- add_arg(xml, "propname", "s", "in");
- add_arg(xml, "value", "v", "in");
- wpabuf_put_str(xml, "</method>");
-
- wpabuf_put_str(xml, "</interface>");
-}
-
-
-static void add_wpas_interfaces(struct wpabuf *xml,
- struct wpa_dbus_object_desc *obj_dsc)
-{
- struct dl_list ifaces;
-
- dl_list_init(&ifaces);
- extract_interfaces(&ifaces, obj_dsc);
- add_interfaces(&ifaces, xml);
-}
-
-
-/**
- * wpa_dbus_introspect - Responds for Introspect calls on object
- * @message: Message with Introspect call
- * @obj_dsc: Object description on which Introspect was called
- * Returns: Message with introspection result XML string as only argument
- *
- * Iterates over all methods, signals and properties registered with
- * object and generates introspection data for the object as XML string.
- */
-DBusMessage * wpa_dbus_introspect(DBusMessage *message,
- struct wpa_dbus_object_desc *obj_dsc)
-{
-
- DBusMessage *reply;
- struct wpabuf *xml;
-
- xml = wpabuf_alloc(20000);
- if (xml == NULL)
- return NULL;
-
- wpabuf_put_str(xml, "<?xml version=\"1.0\"?>\n");
- wpabuf_put_str(xml, DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE);
- wpabuf_put_str(xml, "<node>");
-
- add_introspectable_interface(xml);
- add_properties_interface(xml);
- add_wpas_interfaces(xml, obj_dsc);
- add_child_nodes(xml, obj_dsc->connection,
- dbus_message_get_path(message));
-
- wpabuf_put_str(xml, "</node>\n");
-
- reply = dbus_message_new_method_return(message);
- if (reply) {
- const char *intro_str = wpabuf_head(xml);
-
- dbus_message_append_args(reply, DBUS_TYPE_STRING, &intro_str,
- DBUS_TYPE_INVALID);
- }
- wpabuf_free(xml);
-
- return reply;
-}
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