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- #include "includes.h"
- #include "common.h"
- #include "eloop.h"
- #include "dbus_common.h"
- #include "dbus_common_i.h"
- #include "dbus_new_helpers.h"
- struct wpa_dbus_method_desc {
-
- struct wpa_dbus_method_desc *next;
-
- char *dbus_interface;
-
- char *dbus_method;
-
- WPADBusMethodHandler method_handler;
-
- int args_num;
-
- struct wpa_dbus_argument args[];
- };
- struct wpa_dbus_signal_desc {
-
- struct wpa_dbus_signal_desc *next;
-
- char *dbus_interface;
-
- char *dbus_signal;
-
- int args_num;
-
- struct wpa_dbus_argument args[0];
- };
- struct wpa_dbus_property_desc {
-
- struct wpa_dbus_property_desc *next;
-
- char *dbus_interface;
-
- char *dbus_property;
-
- char *type;
-
- enum dbus_prop_access access;
-
- WPADBusPropertyAccessor getter;
-
- WPADBusPropertyAccessor setter;
- };
- #ifdef CONFIG_CTRL_IFACE_DBUS_INTRO
- #include <libxml/tree.h>
- struct interfaces {
- struct interfaces *next;
- char *dbus_interface;
- xmlNodePtr interface_node;
- };
- #endif
- #ifdef CONFIG_CTRL_IFACE_DBUS_INTRO
- static struct interfaces * extract_interfaces(
- struct wpa_dbus_object_desc *obj_dsc, xmlNodePtr root_node)
- {
- struct wpa_dbus_method_desc *method_dsc = obj_dsc->methods;
- struct wpa_dbus_signal_desc *signal_dsc = obj_dsc->signals;
- struct wpa_dbus_property_desc *property_dsc = obj_dsc->properties;
- struct interfaces *head = NULL;
- struct interfaces *iface, *last;
- int len;
-
- while (method_dsc) {
- iface = head;
- last = NULL;
-
- while (iface) {
- if (!os_strcmp(iface->dbus_interface,
- method_dsc->dbus_interface))
- break;
- last = iface;
- iface = iface->next;
- }
- if (iface) {
- method_dsc = method_dsc->next;
- continue;
- }
- iface = os_zalloc(sizeof(struct interfaces));
- if (!iface) {
- wpa_printf(MSG_ERROR, "Not enough memory to create "
- "interface introspection data");
- method_dsc = method_dsc->next;
- continue;
- }
- if (last)
- last->next = iface;
- else
- head = iface;
- len = os_strlen(method_dsc->dbus_interface) + 1;
- iface->dbus_interface = os_malloc(len);
- if (!iface->dbus_interface) {
- wpa_printf(MSG_ERROR, "Not enough memory to create "
- "interface introspection data (interface "
- "name)");
- method_dsc = method_dsc->next;
- continue;
- }
- os_strncpy(iface->dbus_interface, method_dsc->dbus_interface,
- len);
- iface->interface_node = xmlNewChild(root_node, NULL,
- BAD_CAST "interface",
- NULL);
- xmlNewProp(iface->interface_node, BAD_CAST "name",
- BAD_CAST method_dsc->dbus_interface);
- method_dsc = method_dsc->next;
- }
-
- while (signal_dsc) {
- iface = head;
- last = NULL;
-
- while (iface) {
- if (!os_strcmp(iface->dbus_interface,
- signal_dsc->dbus_interface))
- break;
- last = iface;
- iface = iface->next;
- }
- if (iface) {
- signal_dsc = signal_dsc->next;
- continue;
- }
- iface = os_zalloc(sizeof(struct interfaces));
- if (!iface) {
- wpa_printf(MSG_ERROR, "Not enough memory to create "
- "interface introspection data");
- signal_dsc = signal_dsc->next;
- continue;
- }
- if (last)
- last->next = iface;
- else
- head = iface;
- len = os_strlen(signal_dsc->dbus_interface) + 1;
- iface->dbus_interface = os_malloc(len);
- if (!iface->dbus_interface) {
- wpa_printf(MSG_ERROR, "Not enough memory to create "
- "interface introspection data (interface "
- "name)");
- signal_dsc = signal_dsc->next;
- continue;
- }
- os_strncpy(iface->dbus_interface, signal_dsc->dbus_interface,
- len);
- iface->interface_node = xmlNewChild(root_node, NULL,
- BAD_CAST "interface",
- NULL);
- xmlNewProp(iface->interface_node, BAD_CAST "name",
- BAD_CAST signal_dsc->dbus_interface);
- signal_dsc = signal_dsc->next;
- }
-
- while (property_dsc) {
- iface = head;
- last = NULL;
-
- while (iface) {
- if (!os_strcmp(iface->dbus_interface,
- property_dsc->dbus_interface))
- break;
- last = iface;
- iface = iface->next;
- }
- if (iface) {
- property_dsc = property_dsc->next;
- continue;
- }
- iface = os_zalloc(sizeof(struct interfaces));
- if (!iface) {
- wpa_printf(MSG_ERROR, "Not enough memory to create "
- "interface introspection data");
- property_dsc = property_dsc->next;
- continue;
- }
- if (last)
- last->next = iface;
- else
- head = iface;
- len = os_strlen(property_dsc->dbus_interface) + 1;
- iface->dbus_interface = os_malloc(len);
- if (!iface->dbus_interface) {
- wpa_printf(MSG_ERROR, "Not enough memory to create "
- "interface introspection data (interface "
- "name)");
- property_dsc = property_dsc->next;
- continue;
- }
- os_strncpy(iface->dbus_interface, property_dsc->dbus_interface,
- len);
- iface->interface_node = xmlNewChild(root_node, NULL,
- BAD_CAST "interface",
- NULL);
- xmlNewProp(iface->interface_node, BAD_CAST "name",
- BAD_CAST property_dsc->dbus_interface);
- property_dsc = property_dsc->next;
- }
- return head;
- }
- static DBusMessage * introspect(DBusMessage *message,
- struct wpa_dbus_object_desc *obj_dsc)
- {
- DBusMessage *reply;
- struct interfaces *ifaces, *tmp;
- struct wpa_dbus_signal_desc *signal_dsc;
- struct wpa_dbus_method_desc *method_dsc;
- struct wpa_dbus_property_desc *property_dsc;
- xmlChar *intro_str;
- char **children;
- int i, s;
- xmlDocPtr doc = NULL;
- xmlNodePtr root_node = NULL, node = NULL, iface_node = NULL;
- xmlNodePtr method_node = NULL, signal_node = NULL;
- xmlNodePtr property_node = NULL, arg_node = NULL;
-
- doc = xmlNewDoc(BAD_CAST "1.0");
- root_node = xmlNewNode(NULL, BAD_CAST "node");
- xmlDocSetRootElement(doc, root_node);
- xmlCreateIntSubset(doc, BAD_CAST "node",
- BAD_CAST DBUS_INTROSPECT_1_0_XML_PUBLIC_IDENTIFIER,
- BAD_CAST DBUS_INTROSPECT_1_0_XML_SYSTEM_IDENTIFIER);
-
- iface_node = xmlNewChild(root_node, NULL, BAD_CAST "interface", NULL);
- xmlNewProp(iface_node, BAD_CAST "name",
- BAD_CAST WPA_DBUS_INTROSPECTION_INTERFACE);
-
- method_node = xmlNewChild(iface_node, NULL, BAD_CAST "method", NULL);
- xmlNewProp(method_node, BAD_CAST "name",
- BAD_CAST WPA_DBUS_INTROSPECTION_METHOD);
- arg_node = xmlNewChild(method_node, NULL, BAD_CAST "arg", NULL);
- xmlNewProp(arg_node, BAD_CAST "name", BAD_CAST "data");
- xmlNewProp(arg_node, BAD_CAST "type", BAD_CAST "s");
- xmlNewProp(arg_node, BAD_CAST "direction", BAD_CAST "out");
-
- iface_node = xmlNewChild(root_node, NULL,
- BAD_CAST "interface", NULL);
- xmlNewProp(iface_node, BAD_CAST "name",
- BAD_CAST WPA_DBUS_PROPERTIES_INTERFACE);
-
- method_node = xmlNewChild(iface_node, NULL, BAD_CAST "method", NULL);
- xmlNewProp(method_node, BAD_CAST "name",
- BAD_CAST WPA_DBUS_PROPERTIES_GET);
- arg_node = xmlNewChild(method_node, NULL, BAD_CAST "arg", NULL);
- xmlNewProp(arg_node, BAD_CAST "name", BAD_CAST "interface");
- xmlNewProp(arg_node, BAD_CAST "type", BAD_CAST "s");
- xmlNewProp(arg_node, BAD_CAST "direction", BAD_CAST "in");
- arg_node = xmlNewChild(method_node, NULL, BAD_CAST "arg", NULL);
- xmlNewProp(arg_node, BAD_CAST "name", BAD_CAST "propname");
- xmlNewProp(arg_node, BAD_CAST "type", BAD_CAST "s");
- xmlNewProp(arg_node, BAD_CAST "direction", BAD_CAST "in");
- arg_node = xmlNewChild(method_node, NULL, BAD_CAST "arg", NULL);
- xmlNewProp(arg_node, BAD_CAST "name", BAD_CAST "value");
- xmlNewProp(arg_node, BAD_CAST "type", BAD_CAST "v");
- xmlNewProp(arg_node, BAD_CAST "direction", BAD_CAST "out");
- method_node = xmlNewChild(iface_node, NULL, BAD_CAST "method", NULL);
-
- xmlNewProp(method_node, BAD_CAST "name",
- BAD_CAST WPA_DBUS_PROPERTIES_GETALL);
- arg_node = xmlNewChild(method_node, NULL, BAD_CAST "arg", NULL);
- xmlNewProp(arg_node, BAD_CAST "name", BAD_CAST "interface");
- xmlNewProp(arg_node, BAD_CAST "type", BAD_CAST "s");
- xmlNewProp(arg_node, BAD_CAST "direction", BAD_CAST "in");
- arg_node = xmlNewChild(method_node, NULL, BAD_CAST "arg", NULL);
- xmlNewProp(arg_node, BAD_CAST "name", BAD_CAST "props");
- xmlNewProp(arg_node, BAD_CAST "type", BAD_CAST "a{sv}");
- xmlNewProp(arg_node, BAD_CAST "direction", BAD_CAST "out");
- method_node = xmlNewChild(iface_node, NULL, BAD_CAST "method", NULL);
-
- xmlNewProp(method_node, BAD_CAST "name",
- BAD_CAST WPA_DBUS_PROPERTIES_SET);
- arg_node = xmlNewChild(method_node, NULL, BAD_CAST "arg", NULL);
- xmlNewProp(arg_node, BAD_CAST "name", BAD_CAST "interface");
- xmlNewProp(arg_node, BAD_CAST "type", BAD_CAST "s");
- xmlNewProp(arg_node, BAD_CAST "direction", BAD_CAST "in");
- arg_node = xmlNewChild(method_node, NULL, BAD_CAST "arg", NULL);
- xmlNewProp(arg_node, BAD_CAST "name", BAD_CAST "propname");
- xmlNewProp(arg_node, BAD_CAST "type", BAD_CAST "s");
- xmlNewProp(arg_node, BAD_CAST "direction", BAD_CAST "in");
- arg_node = xmlNewChild(method_node, NULL, BAD_CAST "arg", NULL);
- xmlNewProp(arg_node, BAD_CAST "name", BAD_CAST "value");
- xmlNewProp(arg_node, BAD_CAST "type", BAD_CAST "v");
- xmlNewProp(arg_node, BAD_CAST "direction", BAD_CAST "in");
-
- ifaces = extract_interfaces(obj_dsc, root_node);
-
- method_dsc = obj_dsc->methods;
- while (method_dsc) {
- struct interfaces *iface = ifaces;
- while (iface) {
- if (!os_strcmp(iface->dbus_interface,
- method_dsc->dbus_interface))
- break;
- iface = iface->next;
- }
- if (!iface)
- continue;
- iface_node = iface->interface_node;
- method_node = xmlNewChild(iface_node, NULL, BAD_CAST "method",
- NULL);
- xmlNewProp(method_node, BAD_CAST "name",
- BAD_CAST method_dsc->dbus_method);
-
- for (i = 0; i < method_dsc->args_num; i++) {
- struct wpa_dbus_argument arg = method_dsc->args[i];
- arg_node = xmlNewChild(method_node, NULL,
- BAD_CAST "arg", NULL);
- if (arg.name && strlen(arg.name)) {
- xmlNewProp(arg_node, BAD_CAST "name",
- BAD_CAST arg.name);
- }
- xmlNewProp(arg_node, BAD_CAST "type",
- BAD_CAST arg.type);
- xmlNewProp(arg_node, BAD_CAST "direction",
- BAD_CAST (arg.dir == ARG_IN ?
- "in" : "out"));
- }
- method_dsc = method_dsc->next;
- }
-
- signal_dsc = obj_dsc->signals;
- while (signal_dsc) {
- struct interfaces *iface = ifaces;
- while (iface) {
- if (!os_strcmp(iface->dbus_interface,
- signal_dsc->dbus_interface))
- break;
- iface = iface->next;
- }
- if (!iface)
- continue;
- iface_node = iface->interface_node;
- signal_node = xmlNewChild(iface_node, NULL, BAD_CAST "signal",
- NULL);
- xmlNewProp(signal_node, BAD_CAST "name",
- BAD_CAST signal_dsc->dbus_signal);
-
- for (i = 0; i < signal_dsc->args_num; i++) {
- struct wpa_dbus_argument arg = signal_dsc->args[i];
- arg_node = xmlNewChild(signal_node, NULL,
- BAD_CAST "arg", NULL);
- if (arg.name && strlen(arg.name)) {
- xmlNewProp(arg_node, BAD_CAST "name",
- BAD_CAST arg.name);
- }
- xmlNewProp(arg_node, BAD_CAST "type",
- BAD_CAST arg.type);
- }
- signal_dsc = signal_dsc->next;
- }
-
- property_dsc = obj_dsc->properties;
- while (property_dsc) {
- struct interfaces *iface = ifaces;
- while (iface) {
- if (!os_strcmp(iface->dbus_interface,
- property_dsc->dbus_interface))
- break;
- iface = iface->next;
- }
- if (!iface)
- continue;
- iface_node = iface->interface_node;
- property_node = xmlNewChild(iface_node, NULL,
- BAD_CAST "property", NULL);
- xmlNewProp(property_node, BAD_CAST "name",
- BAD_CAST property_dsc->dbus_property);
- xmlNewProp(property_node, BAD_CAST "type",
- BAD_CAST property_dsc->type);
- xmlNewProp(property_node, BAD_CAST "access", BAD_CAST
- (property_dsc->access == R ? "read" :
- (property_dsc->access == W ?
- "write" : "readwrite")));
- property_dsc = property_dsc->next;
- }
-
- dbus_connection_list_registered(obj_dsc->connection,
- dbus_message_get_path(message),
- &children);
- for (i = 0; children[i]; i++) {
- node = xmlNewChild(root_node, NULL, BAD_CAST "node", NULL);
- xmlNewProp(node, BAD_CAST "name", BAD_CAST children[i]);
- }
- dbus_free_string_array(children);
- xmlDocDumpFormatMemory(doc, &intro_str, &s, 1);
- xmlFreeDoc(doc);
- while (ifaces) {
- tmp = ifaces;
- ifaces = ifaces->next;
- os_free(tmp->dbus_interface);
- os_free(tmp);
- }
- reply = dbus_message_new_method_return(message);
- if (reply == NULL) {
- xmlFree(intro_str);
- return NULL;
- }
- dbus_message_append_args(reply, DBUS_TYPE_STRING, &intro_str,
- DBUS_TYPE_INVALID);
- xmlFree(intro_str);
- return reply;
- }
- #else
- static DBusMessage * introspect(DBusMessage *message,
- struct wpa_dbus_object_desc *obj_dsc)
- {
- return dbus_message_new_error(message, DBUS_ERROR_UNKNOWN_METHOD,
- "wpa_supplicant was compiled without "
- "introspection support.");
- }
- #endif
- static void recursive_iter_copy(DBusMessageIter *from, DBusMessageIter *to)
- {
- char *subtype = NULL;
- int type;
-
- while ((type = dbus_message_iter_get_arg_type (from)) !=
- DBUS_TYPE_INVALID) {
-
- if (dbus_type_is_basic(type)) {
- if (dbus_type_is_fixed(type)) {
-
- dbus_uint64_t v;
- dbus_message_iter_get_basic (from, &v);
- dbus_message_iter_append_basic (to, type, &v);
- } else {
- char *v;
- dbus_message_iter_get_basic (from, &v);
- dbus_message_iter_append_basic (to, type, &v);
- }
- } else {
-
- DBusMessageIter write_subiter, read_subiter;
- dbus_message_iter_recurse(from, &read_subiter);
- if (type == DBUS_TYPE_VARIANT ||
- type == DBUS_TYPE_ARRAY) {
- subtype = dbus_message_iter_get_signature(
- &read_subiter);
- }
- dbus_message_iter_open_container(to, type, subtype,
- &write_subiter);
- recursive_iter_copy(&read_subiter, &write_subiter);
- dbus_message_iter_close_container(to, &write_subiter);
- if (subtype)
- dbus_free(subtype);
- }
- dbus_message_iter_next(from);
- }
- }
- static unsigned int fill_dict_with_properties(
- DBusMessageIter *dict_iter, struct wpa_dbus_property_desc *props,
- const char *interface, const void *user_data)
- {
- DBusMessage *reply;
- DBusMessageIter entry_iter, ret_iter;
- unsigned int counter = 0;
- struct wpa_dbus_property_desc *property_dsc;
- for (property_dsc = props; property_dsc;
- property_dsc = property_dsc->next) {
- if (!os_strncmp(property_dsc->dbus_interface, interface,
- WPAS_DBUS_INTERFACE_MAX) &&
- property_dsc->access != W && property_dsc->getter) {
- reply = property_dsc->getter(NULL, user_data);
- if (!reply)
- continue;
- if (dbus_message_get_type(reply) ==
- DBUS_MESSAGE_TYPE_ERROR) {
- dbus_message_unref(reply);
- continue;
- }
- dbus_message_iter_init(reply, &ret_iter);
- dbus_message_iter_open_container(dict_iter,
- DBUS_TYPE_DICT_ENTRY,
- NULL, &entry_iter);
- dbus_message_iter_append_basic(
- &entry_iter, DBUS_TYPE_STRING,
- &(property_dsc->dbus_property));
- recursive_iter_copy(&ret_iter, &entry_iter);
- dbus_message_iter_close_container(dict_iter,
- &entry_iter);
- dbus_message_unref(reply);
- counter++;
- }
- }
- return counter;
- }
- static DBusMessage * get_all_properties(
- DBusMessage *message, char *interface,
- struct wpa_dbus_object_desc *obj_dsc)
- {
-
- DBusMessage *reply = dbus_message_new_method_return(message);
- DBusMessageIter iter, dict_iter;
- int props_num;
- dbus_message_iter_init_append(reply, &iter);
- dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY,
- DBUS_DICT_ENTRY_BEGIN_CHAR_AS_STRING
- DBUS_TYPE_STRING_AS_STRING
- DBUS_TYPE_VARIANT_AS_STRING
- DBUS_DICT_ENTRY_END_CHAR_AS_STRING,
- &dict_iter);
- props_num = fill_dict_with_properties(&dict_iter,obj_dsc->properties,
- interface, obj_dsc->user_data);
- dbus_message_iter_close_container(&iter, &dict_iter);
- if (props_num == 0) {
- dbus_message_unref(reply);
- reply = dbus_message_new_error(message,
- DBUS_ERROR_INVALID_ARGS,
- "No readable properties in "
- "this interface");
- }
- return reply;
- }
- static int is_signature_correct(DBusMessage *message,
- struct wpa_dbus_method_desc *method_dsc)
- {
-
- #define MAX_SIG_LEN 256
- char registered_sig[MAX_SIG_LEN], *pos;
- const char *sig = dbus_message_get_signature(message);
- int i, ret;
- pos = registered_sig;
- *pos = '\0';
- for (i = 0; i < method_dsc->args_num; i++) {
- struct wpa_dbus_argument arg = method_dsc->args[i];
- if (arg.dir == ARG_IN) {
- size_t blen = registered_sig + MAX_SIG_LEN - pos;
- ret = os_snprintf(pos, blen, "%s", arg.type);
- if (ret < 0 || (size_t) ret >= blen)
- return 0;
- pos += ret;
- }
- }
- return !os_strncmp(registered_sig, sig, MAX_SIG_LEN);
- }
- static DBusMessage * properties_get_all(DBusMessage *message, char *interface,
- struct wpa_dbus_object_desc *obj_dsc)
- {
- if (os_strcmp(dbus_message_get_signature(message), "s") != 0)
- return dbus_message_new_error(message, DBUS_ERROR_INVALID_ARGS,
- NULL);
- return get_all_properties(message, interface, obj_dsc);
- }
- static DBusMessage * properties_get(DBusMessage *message,
- struct wpa_dbus_property_desc *dsc,
- void *user_data)
- {
- if (os_strcmp(dbus_message_get_signature(message), "ss"))
- return dbus_message_new_error(message, DBUS_ERROR_INVALID_ARGS,
- NULL);
- if (dsc->access != W && dsc->getter)
- return dsc->getter(message, user_data);
- return dbus_message_new_error(message, DBUS_ERROR_INVALID_ARGS,
- "Property is write-only");
- }
- static DBusMessage * properties_set(DBusMessage *message,
- struct wpa_dbus_property_desc *dsc,
- void *user_data)
- {
- if (os_strcmp(dbus_message_get_signature(message), "ssv"))
- return dbus_message_new_error(message, DBUS_ERROR_INVALID_ARGS,
- NULL);
- if (dsc->access != R && dsc->setter)
- return dsc->setter(message, user_data);
- return dbus_message_new_error(message, DBUS_ERROR_INVALID_ARGS,
- "Property is read-only");
- }
- static DBusMessage *
- properties_get_or_set(DBusMessage *message, DBusMessageIter *iter,
- char *interface,
- struct wpa_dbus_object_desc *obj_dsc)
- {
- struct wpa_dbus_property_desc *property_dsc;
- char *property;
- const char *method;
- method = dbus_message_get_member(message);
- property_dsc = obj_dsc->properties;
-
- if (!dbus_message_iter_next(iter) ||
- dbus_message_iter_get_arg_type(iter) != DBUS_TYPE_STRING) {
- return dbus_message_new_error(message, DBUS_ERROR_INVALID_ARGS,
- NULL);
- }
- dbus_message_iter_get_basic(iter, &property);
- while (property_dsc) {
-
- if (!os_strncmp(property_dsc->dbus_property, property,
- WPAS_DBUS_METHOD_SIGNAL_PROP_MAX) &&
- !os_strncmp(property_dsc->dbus_interface, interface,
- WPAS_DBUS_INTERFACE_MAX))
- break;
- property_dsc = property_dsc->next;
- }
- if (property_dsc == NULL) {
- wpa_printf(MSG_DEBUG, "no property handler for %s.%s on %s",
- interface, property,
- dbus_message_get_path(message));
- return dbus_message_new_error(message, DBUS_ERROR_INVALID_ARGS,
- "No such property");
- }
- if (os_strncmp(WPA_DBUS_PROPERTIES_GET, method,
- WPAS_DBUS_METHOD_SIGNAL_PROP_MAX) == 0)
- return properties_get(message, property_dsc,
- obj_dsc->user_data);
- return properties_set(message, property_dsc, obj_dsc->user_data);
- }
- static DBusMessage * properties_handler(DBusMessage *message,
- struct wpa_dbus_object_desc *obj_dsc)
- {
- DBusMessageIter iter;
- char *interface;
- const char *method;
- method = dbus_message_get_member(message);
- dbus_message_iter_init(message, &iter);
- if (!os_strncmp(WPA_DBUS_PROPERTIES_GET, method,
- WPAS_DBUS_METHOD_SIGNAL_PROP_MAX) ||
- !os_strncmp(WPA_DBUS_PROPERTIES_SET, method,
- WPAS_DBUS_METHOD_SIGNAL_PROP_MAX) ||
- !os_strncmp(WPA_DBUS_PROPERTIES_GETALL, method,
- WPAS_DBUS_METHOD_SIGNAL_PROP_MAX)) {
-
- if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
- {
- return dbus_message_new_error(message,
- DBUS_ERROR_INVALID_ARGS,
- NULL);
- }
- dbus_message_iter_get_basic(&iter, &interface);
- if (!os_strncmp(WPA_DBUS_PROPERTIES_GETALL, method,
- WPAS_DBUS_METHOD_SIGNAL_PROP_MAX)) {
-
- return properties_get_all(message, interface, obj_dsc);
- }
-
- return properties_get_or_set(message, &iter, interface,
- obj_dsc);
- }
- return dbus_message_new_error(message, DBUS_ERROR_UNKNOWN_METHOD,
- NULL);
- }
- static DBusMessage * msg_method_handler(DBusMessage *message,
- struct wpa_dbus_object_desc *obj_dsc)
- {
- struct wpa_dbus_method_desc *method_dsc = obj_dsc->methods;
- const char *method;
- const char *msg_interface;
- method = dbus_message_get_member(message);
- msg_interface = dbus_message_get_interface(message);
-
- while (method_dsc) {
-
- if (!os_strncmp(method_dsc->dbus_method, method,
- WPAS_DBUS_METHOD_SIGNAL_PROP_MAX) &&
- !os_strncmp(method_dsc->dbus_interface, msg_interface,
- WPAS_DBUS_INTERFACE_MAX))
- break;
- method_dsc = method_dsc->next;
- }
- if (method_dsc == NULL) {
- wpa_printf(MSG_DEBUG, "no method handler for %s.%s on %s",
- msg_interface, method,
- dbus_message_get_path(message));
- return dbus_message_new_error(message,
- DBUS_ERROR_UNKNOWN_METHOD, NULL);
- }
- if (!is_signature_correct(message, method_dsc)) {
- return dbus_message_new_error(message, DBUS_ERROR_INVALID_ARGS,
- NULL);
- }
- return method_dsc->method_handler(message,
- obj_dsc->user_data);
- }
- static DBusHandlerResult message_handler(DBusConnection *connection,
- DBusMessage *message, void *user_data)
- {
- struct wpa_dbus_object_desc *obj_dsc = user_data;
- const char *method;
- const char *path;
- const char *msg_interface;
- DBusMessage *reply;
-
- method = dbus_message_get_member(message);
- path = dbus_message_get_path(message);
- msg_interface = dbus_message_get_interface(message);
- if (!method || !path || !msg_interface)
- return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
- wpa_printf(MSG_MSGDUMP, "dbus: %s.%s (%s)",
- msg_interface, method, path);
-
- if (!os_strncmp(WPA_DBUS_INTROSPECTION_METHOD, method,
- WPAS_DBUS_METHOD_SIGNAL_PROP_MAX) &&
- !os_strncmp(WPA_DBUS_INTROSPECTION_INTERFACE, msg_interface,
- WPAS_DBUS_INTERFACE_MAX))
- reply = introspect(message, obj_dsc);
- else if (!os_strncmp(WPA_DBUS_PROPERTIES_INTERFACE, msg_interface,
- WPAS_DBUS_INTERFACE_MAX)) {
-
- reply = properties_handler(message, obj_dsc);
- } else {
- reply = msg_method_handler(message, obj_dsc);
- }
-
- if (!reply)
- reply = dbus_message_new_method_return(message);
- if (reply) {
- if (!dbus_message_get_no_reply(message))
- dbus_connection_send(connection, reply, NULL);
- dbus_message_unref(reply);
- }
- return DBUS_HANDLER_RESULT_HANDLED;
- }
- void free_dbus_object_desc(struct wpa_dbus_object_desc *obj_dsc)
- {
- struct wpa_dbus_method_desc *method_dsc, *tmp_met_dsc;
- struct wpa_dbus_signal_desc *signal_dsc, *tmp_sig_dsc;
- struct wpa_dbus_property_desc *property_dsc, *tmp_prop_dsc;
- int i;
- if (!obj_dsc)
- return;
-
- method_dsc = obj_dsc->methods;
- while (method_dsc) {
- tmp_met_dsc = method_dsc;
- method_dsc = method_dsc->next;
- os_free(tmp_met_dsc->dbus_interface);
- os_free(tmp_met_dsc->dbus_method);
- for (i = 0; i < tmp_met_dsc->args_num; i++) {
- os_free(tmp_met_dsc->args[i].name);
- os_free(tmp_met_dsc->args[i].type);
- }
- os_free(tmp_met_dsc);
- }
-
- signal_dsc = obj_dsc->signals;
- while (signal_dsc) {
- tmp_sig_dsc = signal_dsc;
- signal_dsc = signal_dsc->next;
- os_free(tmp_sig_dsc->dbus_interface);
- os_free(tmp_sig_dsc->dbus_signal);
- for (i = 0; i < tmp_sig_dsc->args_num; i++) {
- os_free(tmp_sig_dsc->args[i].name);
- os_free(tmp_sig_dsc->args[i].type);
- }
- os_free(tmp_sig_dsc);
- }
-
- property_dsc = obj_dsc->properties;
- while (property_dsc) {
- tmp_prop_dsc = property_dsc;
- property_dsc = property_dsc->next;
- os_free(tmp_prop_dsc->dbus_interface);
- os_free(tmp_prop_dsc->dbus_property);
- os_free(tmp_prop_dsc->type);
- os_free(tmp_prop_dsc);
- }
-
- if (obj_dsc->user_data_free_func)
- obj_dsc->user_data_free_func(obj_dsc->user_data);
- os_free(obj_dsc);
- }
- static void free_dbus_object_desc_cb(DBusConnection *connection, void *obj_dsc)
- {
- free_dbus_object_desc(obj_dsc);
- }
- int wpa_dbus_ctrl_iface_init(struct wpas_dbus_priv *iface,
- char *dbus_path, char *dbus_service,
- struct wpa_dbus_object_desc *obj_desc)
- {
- DBusError error;
- int ret = -1;
- DBusObjectPathVTable wpa_vtable = {
- &free_dbus_object_desc_cb, &message_handler,
- NULL, NULL, NULL, NULL
- };
- obj_desc->connection = iface->con;
-
- if (!dbus_connection_register_object_path(iface->con,
- dbus_path, &wpa_vtable,
- obj_desc)) {
- perror("dbus_connection_register_object_path[dbus]");
- wpa_printf(MSG_ERROR, "Could not set up DBus message "
- "handler.");
- return -1;
- }
-
- dbus_error_init(&error);
- switch (dbus_bus_request_name(iface->con, dbus_service,
- 0, &error)) {
- case DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER:
- ret = 0;
- break;
- case DBUS_REQUEST_NAME_REPLY_EXISTS:
- case DBUS_REQUEST_NAME_REPLY_IN_QUEUE:
- case DBUS_REQUEST_NAME_REPLY_ALREADY_OWNER:
- perror("dbus_bus_request_name[dbus]");
- wpa_printf(MSG_ERROR, "Could not request DBus service name: "
- "already registered.");
- break;
- default:
- perror("dbus_bus_request_name[dbus]");
- wpa_printf(MSG_ERROR, "Could not request DBus service name: "
- "%s %s.", error.name, error.message);
- break;
- }
- dbus_error_free(&error);
- if (ret != 0)
- return -1;
- wpa_printf(MSG_DEBUG, "Providing DBus service '%s'.", dbus_service);
- return 0;
- }
- int wpa_dbus_register_object_per_iface(
- struct wpas_dbus_priv *ctrl_iface,
- const char *path, const char *ifname,
- struct wpa_dbus_object_desc *obj_desc)
- {
- DBusConnection *con;
- DBusObjectPathVTable vtable = {
- &free_dbus_object_desc_cb, &message_handler,
- NULL, NULL, NULL, NULL
- };
-
- if (ctrl_iface == NULL)
- return 0;
- con = ctrl_iface->con;
- obj_desc->connection = con;
-
- if (!dbus_connection_register_object_path(con, path, &vtable,
- obj_desc)) {
- perror("wpa_dbus_register_iface [dbus]");
- wpa_printf(MSG_ERROR, "Could not set up DBus message "
- "handler for interface %s\n"
- "and object %s.", ifname, path);
- return -1;
- }
- return 0;
- }
- int wpa_dbus_unregister_object_per_iface(
- struct wpas_dbus_priv *ctrl_iface, const char *path)
- {
- DBusConnection *con = ctrl_iface->con;
- if (!dbus_connection_unregister_object_path(con, path))
- return -1;
- return 0;
- }
- int wpa_dbus_method_register(struct wpa_dbus_object_desc *obj_dsc,
- const char *dbus_interface,
- const char *dbus_method,
- WPADBusMethodHandler method_handler,
- const struct wpa_dbus_argument args[])
- {
- struct wpa_dbus_method_desc *method_dsc = obj_dsc->methods;
- struct wpa_dbus_method_desc *prev_desc;
- int args_num = 0;
- int interface_len, method_len, i, len, error;
- prev_desc = NULL;
- while (method_dsc) {
- prev_desc = method_dsc;
- method_dsc = method_dsc->next;
- }
-
- if (args) {
- while (args[args_num].name && args[args_num].type)
- args_num++;
- }
- method_dsc = os_zalloc(sizeof(struct wpa_dbus_method_desc) +
- args_num * sizeof(struct wpa_dbus_argument));
- if (!method_dsc)
- goto err;
- if (prev_desc == NULL)
- obj_dsc->methods = method_dsc;
- else
- prev_desc->next = method_dsc;
-
- interface_len = os_strlen(dbus_interface) + 1;
- method_dsc->dbus_interface = os_malloc(interface_len);
- if (!method_dsc->dbus_interface)
- goto err;
- os_strncpy(method_dsc->dbus_interface, dbus_interface, interface_len);
-
- method_len = os_strlen(dbus_method) + 1;
- method_dsc->dbus_method = os_malloc(method_len);
- if (!method_dsc->dbus_method)
- goto err;
- os_strncpy(method_dsc->dbus_method, dbus_method, method_len);
-
- error = 0;
- method_dsc->args_num = args_num;
- for (i = 0; i < args_num; i++) {
- len = os_strlen(args[i].name) + 1;
- method_dsc->args[i].name = os_malloc(len);
- if (!method_dsc->args[i].name) {
- error = 1;
- continue;
- }
- os_strncpy(method_dsc->args[i].name, args[i].name, len);
- len = os_strlen(args[i].type) + 1;
- method_dsc->args[i].type = os_malloc(len);
- if (!method_dsc->args[i].type) {
- error = 1;
- continue;
- }
- os_strncpy(method_dsc->args[i].type, args[i].type, len);
- method_dsc->args[i].dir = args[i].dir;
- }
- if (error)
- goto err;
- method_dsc->method_handler = method_handler;
- method_dsc->next = NULL;
- return 0;
- err:
- wpa_printf(MSG_WARNING, "Failed to register dbus method %s in "
- "interface %s", dbus_method, dbus_interface);
- if (method_dsc) {
- os_free(method_dsc->dbus_interface);
- os_free(method_dsc->dbus_method);
- for (i = 0; i < method_dsc->args_num; i++) {
- os_free(method_dsc->args[i].name);
- os_free(method_dsc->args[i].type);
- }
- if (prev_desc == NULL)
- obj_dsc->methods = NULL;
- else
- prev_desc->next = NULL;
- os_free(method_dsc);
- }
- return -1;
- }
- int wpa_dbus_signal_register(struct wpa_dbus_object_desc *obj_dsc,
- const char *dbus_interface,
- const char *dbus_signal,
- const struct wpa_dbus_argument args[])
- {
- struct wpa_dbus_signal_desc *signal_dsc = obj_dsc->signals;
- struct wpa_dbus_signal_desc *prev_desc;
- int args_num = 0;
- int interface_len, signal_len, i, len, error = 0;
- prev_desc = NULL;
- while (signal_dsc) {
- prev_desc = signal_dsc;
- signal_dsc = signal_dsc->next;
- }
-
- if (args) {
- while (args[args_num].name && args[args_num].type)
- args_num++;
- }
- signal_dsc = os_zalloc(sizeof(struct wpa_dbus_signal_desc) +
- args_num * sizeof(struct wpa_dbus_argument));
- if (!signal_dsc)
- goto err;
- if (prev_desc == NULL)
- obj_dsc->signals = signal_dsc;
- else
- prev_desc->next = signal_dsc;
-
- interface_len = strlen(dbus_interface) + 1;
- signal_dsc->dbus_interface = os_malloc(interface_len);
- if (!signal_dsc->dbus_interface)
- goto err;
- os_strncpy(signal_dsc->dbus_interface, dbus_interface, interface_len);
-
- signal_len = strlen(dbus_signal) + 1;
- signal_dsc->dbus_signal = os_malloc(signal_len);
- if (!signal_dsc->dbus_signal)
- goto err;
- os_strncpy(signal_dsc->dbus_signal, dbus_signal, signal_len);
-
- signal_dsc->args_num = args_num;
- for (i = 0; i < args_num; i++) {
- len = os_strlen(args[i].name) + 1;
- signal_dsc->args[i].name = os_malloc(len);
- if (!signal_dsc->args[i].name) {
- error = 1;
- continue;
- }
- os_strncpy(signal_dsc->args[i].name, args[i].name, len);
- len = strlen(args[i].type) + 1;
- signal_dsc->args[i].type = os_malloc(len);
- if (!signal_dsc->args[i].type) {
- error = 1;
- continue;
- }
- os_strncpy(signal_dsc->args[i].type, args[i].type, len);
- }
- if (error)
- goto err;
- signal_dsc->next = NULL;
- return 0;
- err:
- wpa_printf(MSG_WARNING, "Failed to register dbus signal %s in "
- "interface %s", dbus_signal, dbus_interface);
- if (signal_dsc) {
- os_free(signal_dsc->dbus_interface);
- os_free(signal_dsc->dbus_signal);
- for (i = 0; i < signal_dsc->args_num; i++) {
- os_free(signal_dsc->args[i].name);
- os_free(signal_dsc->args[i].type);
- }
- if (prev_desc == NULL)
- obj_dsc->signals = NULL;
- else
- prev_desc->next = NULL;
- os_free(signal_dsc);
- }
- return -1;
- }
- int wpa_dbus_property_register(struct wpa_dbus_object_desc *obj_dsc,
- const char *dbus_interface,
- const char *dbus_property,
- const char *type,
- WPADBusPropertyAccessor getter,
- WPADBusPropertyAccessor setter,
- enum dbus_prop_access _access)
- {
- struct wpa_dbus_property_desc *property_dsc = obj_dsc->properties;
- struct wpa_dbus_property_desc *prev_desc;
- int interface_len, property_len, type_len;
- prev_desc = NULL;
- while (property_dsc) {
- prev_desc = property_dsc;
- property_dsc = property_dsc->next;
- }
- property_dsc = os_zalloc(sizeof(struct wpa_dbus_property_desc));
- if (!property_dsc)
- goto err;
- if (prev_desc == NULL)
- obj_dsc->properties = property_dsc;
- else
- prev_desc->next = property_dsc;
-
- interface_len = os_strlen(dbus_interface) + 1;
- property_dsc->dbus_interface = os_malloc(interface_len);
- if (!property_dsc->dbus_interface)
- goto err;
- os_strncpy(property_dsc->dbus_interface, dbus_interface,
- interface_len);
-
- property_len = os_strlen(dbus_property) + 1;
- property_dsc->dbus_property = os_malloc(property_len);
- if (!property_dsc->dbus_property)
- goto err;
- os_strncpy(property_dsc->dbus_property, dbus_property, property_len);
-
- type_len = os_strlen(type) + 1;
- property_dsc->type = os_malloc(type_len);
- if (!property_dsc->type)
- goto err;
- os_strncpy(property_dsc->type, type, type_len);
- property_dsc->getter = getter;
- property_dsc->setter = setter;
- property_dsc->access = _access;
- property_dsc->next = NULL;
- return 0;
- err:
- wpa_printf(MSG_WARNING, "Failed to register dbus property %s in "
- "interface %s", dbus_property, dbus_interface);
- if (property_dsc) {
- os_free(property_dsc->dbus_interface);
- os_free(property_dsc->dbus_property);
- os_free(property_dsc->type);
- if (prev_desc == NULL)
- obj_dsc->properties = NULL;
- else
- prev_desc->next = NULL;
- os_free(property_dsc);
- }
- return -1;
- }
- void wpa_dbus_signal_property_changed(struct wpas_dbus_priv *iface,
- WPADBusPropertyAccessor property_getter,
- void *getter_arg,
- const char *path,
- const char *interface_name,
- const char *property_name)
- {
- DBusConnection *connection;
- DBusMessage *_signal, *getter_reply;
- DBusMessageIter prop_iter, signal_iter, dict_iter, entry_iter;
- if (!iface)
- return;
- connection = iface->con;
- if (!property_getter) {
- wpa_printf(MSG_ERROR, "wpa_dbus_signal_property_changed"
- "[dbus]: property getter not specified");
- return;
- }
- if (!path || !interface_name || !property_name) {
- wpa_printf(MSG_ERROR, "wpa_dbus_signal_property_changed"
- "[dbus]: path interface of property not specified");
- return;
- }
- getter_reply = property_getter(NULL, getter_arg);
- if (!getter_reply ||
- dbus_message_get_type(getter_reply) == DBUS_MESSAGE_TYPE_ERROR) {
- wpa_printf(MSG_ERROR, "wpa_dbus_signal_property_changed"
- "[dbus]: cannot get new value of property %s",
- property_name);
- return;
- }
- _signal = dbus_message_new_signal(path, interface_name,
- "PropertiesChanged");
- if (!_signal) {
- wpa_printf(MSG_ERROR, "wpa_dbus_signal_property_changed"
- "[dbus]: cannot allocate signal");
- dbus_message_unref(getter_reply);
- return;
- }
- dbus_message_iter_init(getter_reply, &prop_iter);
- dbus_message_iter_init_append(_signal, &signal_iter);
- if (!dbus_message_iter_open_container(&signal_iter, DBUS_TYPE_ARRAY,
- "{sv}", &dict_iter)) {
- wpa_printf(MSG_ERROR, "wpa_dbus_signal_property_changed"
- "[dbus]: out of memory. cannot open dictionary");
- goto err;
- }
- if (!dbus_message_iter_open_container(&dict_iter, DBUS_TYPE_DICT_ENTRY,
- NULL, &entry_iter)) {
- wpa_printf(MSG_ERROR, "iwpa_dbus_signal_property_changed"
- "[dbus]: out of memory. cannot open dictionary "
- "element");
- goto err;
- }
- if (!dbus_message_iter_append_basic(&entry_iter, DBUS_TYPE_STRING,
- &property_name)) {
- wpa_printf(MSG_ERROR, "wpa_dbus_signal_property_changed"
- "[dbus]: out of memory. cannot open add property "
- "name");
- goto err;
- }
- recursive_iter_copy(&prop_iter, &entry_iter);
- if (!dbus_message_iter_close_container(&dict_iter, &entry_iter)) {
- wpa_printf(MSG_ERROR, "wpa_dbus_signal_property_changed"
- "[dbus]: out of memory. cannot close dictionary "
- "element");
- goto err;
- }
- if (!dbus_message_iter_close_container(&signal_iter, &dict_iter)) {
- wpa_printf(MSG_ERROR, "wpa_dbus_signal_property_changed"
- "[dbus]: out of memory. cannot close dictionary");
- goto err;
- }
- dbus_connection_send(connection, _signal, NULL);
- err:
- dbus_message_unref(getter_reply);
- dbus_message_unref(_signal);
- }
- void wpa_dbus_get_object_properties(struct wpas_dbus_priv *iface,
- const char *path, const char *interface,
- DBusMessageIter *dict_iter)
- {
- struct wpa_dbus_object_desc *obj_desc = NULL;
- dbus_connection_get_object_path_data(iface->con, path,
- (void **) &obj_desc);
- if (!obj_desc) {
- wpa_printf(MSG_ERROR, "dbus: wpa_dbus_get_object_properties: "
- "could not obtain object's private data: %s", path);
- return;
- }
- fill_dict_with_properties(dict_iter, obj_desc->properties,
- interface, obj_desc->user_data);
- }
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