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hostapd/wpa_supplicant/dbus/dbus_old_handlers.c
Jouni Malinen 74df9c1c43 D-Bus(old): Remove duplicated blob->data check 
This was already verified to be non-NULL above and there is no point in
having an extra check after the pointer has already been dereferenced.

Signed-off-by: Jouni Malinen <j@w1.fi>
2014-12-29 15:49:05 +02:00

1478 lines
41 KiB
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/*
* WPA Supplicant / dbus-based control interface
* Copyright (c) 2006, Dan Williams <dcbw@redhat.com> and Red Hat, Inc.
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
*/
#include "includes.h"
#include <dbus/dbus.h>
#include "common.h"
#include "eap_peer/eap_methods.h"
#include "common/ieee802_11_defs.h"
#include "eapol_supp/eapol_supp_sm.h"
#include "rsn_supp/wpa.h"
#include "../config.h"
#include "../wpa_supplicant_i.h"
#include "../driver_i.h"
#include "../notify.h"
#include "../wpas_glue.h"
#include "../bss.h"
#include "../scan.h"
#include "dbus_old.h"
#include "dbus_old_handlers.h"
#include "dbus_dict_helpers.h"
/**
* wpas_dbus_new_invalid_opts_error - Return a new invalid options error message
* @message: Pointer to incoming dbus message this error refers to
* Returns: a dbus error message
*
* Convenience function to create and return an invalid options error
*/
DBusMessage * wpas_dbus_new_invalid_opts_error(DBusMessage *message,
const char *arg)
{
DBusMessage *reply;
reply = dbus_message_new_error(message, WPAS_ERROR_INVALID_OPTS,
"Did not receive correct message "
"arguments.");
if (arg != NULL)
dbus_message_append_args(reply, DBUS_TYPE_STRING, &arg,
DBUS_TYPE_INVALID);
return reply;
}
/**
* wpas_dbus_new_success_reply - Return a new success reply message
* @message: Pointer to incoming dbus message this reply refers to
* Returns: a dbus message containing a single UINT32 that indicates
* success (ie, a value of 1)
*
* Convenience function to create and return a success reply message
*/
DBusMessage * wpas_dbus_new_success_reply(DBusMessage *message)
{
DBusMessage *reply;
unsigned int success = 1;
reply = dbus_message_new_method_return(message);
dbus_message_append_args(reply, DBUS_TYPE_UINT32, &success,
DBUS_TYPE_INVALID);
return reply;
}
/**
* wpas_dbus_global_add_interface - Request registration of a network interface
* @message: Pointer to incoming dbus message
* @global: %wpa_supplicant global data structure
* Returns: The object path of the new interface object,
* or a dbus error message with more information
*
* Handler function for "addInterface" method call. Handles requests
* by dbus clients to register a network interface that wpa_supplicant
* will manage.
*/
DBusMessage * wpas_dbus_global_add_interface(DBusMessage *message,
struct wpa_global *global)
{
char *ifname = NULL;
char *driver = NULL;
char *driver_param = NULL;
char *confname = NULL;
char *bridge_ifname = NULL;
DBusMessage *reply = NULL;
DBusMessageIter iter;
dbus_message_iter_init(message, &iter);
/* First argument: interface name (DBUS_TYPE_STRING)
* Required; must be non-zero length
*/
if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
goto error;
dbus_message_iter_get_basic(&iter, &ifname);
if (!os_strlen(ifname))
goto error;
/* Second argument: dict of options */
if (dbus_message_iter_next(&iter)) {
DBusMessageIter iter_dict;
struct wpa_dbus_dict_entry entry;
if (!wpa_dbus_dict_open_read(&iter, &iter_dict, NULL))
goto error;
while (wpa_dbus_dict_has_dict_entry(&iter_dict)) {
if (!wpa_dbus_dict_get_entry(&iter_dict, &entry))
goto error;
if (!strcmp(entry.key, "driver") &&
(entry.type == DBUS_TYPE_STRING)) {
os_free(driver);
driver = os_strdup(entry.str_value);
wpa_dbus_dict_entry_clear(&entry);
if (driver == NULL)
goto error;
} else if (!strcmp(entry.key, "driver-params") &&
(entry.type == DBUS_TYPE_STRING)) {
os_free(driver_param);
driver_param = os_strdup(entry.str_value);
wpa_dbus_dict_entry_clear(&entry);
if (driver_param == NULL)
goto error;
} else if (!strcmp(entry.key, "config-file") &&
(entry.type == DBUS_TYPE_STRING)) {
os_free(confname);
confname = os_strdup(entry.str_value);
wpa_dbus_dict_entry_clear(&entry);
if (confname == NULL)
goto error;
} else if (!strcmp(entry.key, "bridge-ifname") &&
(entry.type == DBUS_TYPE_STRING)) {
os_free(bridge_ifname);
bridge_ifname = os_strdup(entry.str_value);
wpa_dbus_dict_entry_clear(&entry);
if (bridge_ifname == NULL)
goto error;
} else {
wpa_dbus_dict_entry_clear(&entry);
goto error;
}
}
}
/*
* Try to get the wpa_supplicant record for this iface, return
* an error if we already control it.
*/
if (wpa_supplicant_get_iface(global, ifname) != NULL) {
reply = dbus_message_new_error(message,
WPAS_ERROR_EXISTS_ERROR,
"wpa_supplicant already "
"controls this interface.");
} else {
struct wpa_supplicant *wpa_s;
struct wpa_interface iface;
os_memset(&iface, 0, sizeof(iface));
iface.ifname = ifname;
iface.driver = driver;
iface.driver_param = driver_param;
iface.confname = confname;
iface.bridge_ifname = bridge_ifname;
/* Otherwise, have wpa_supplicant attach to it. */
if ((wpa_s = wpa_supplicant_add_iface(global, &iface))) {
const char *path = wpa_s->dbus_path;
reply = dbus_message_new_method_return(message);
dbus_message_append_args(reply, DBUS_TYPE_OBJECT_PATH,
&path, DBUS_TYPE_INVALID);
} else {
reply = dbus_message_new_error(message,
WPAS_ERROR_ADD_ERROR,
"wpa_supplicant "
"couldn't grab this "
"interface.");
}
}
out:
os_free(driver);
os_free(driver_param);
os_free(confname);
os_free(bridge_ifname);
return reply;
error:
reply = wpas_dbus_new_invalid_opts_error(message, NULL);
goto out;
}
/**
* wpas_dbus_global_remove_interface - Request deregistration of an interface
* @message: Pointer to incoming dbus message
* @global: wpa_supplicant global data structure
* Returns: a dbus message containing a UINT32 indicating success (1) or
* failure (0), or returns a dbus error message with more information
*
* Handler function for "removeInterface" method call. Handles requests
* by dbus clients to deregister a network interface that wpa_supplicant
* currently manages.
*/
DBusMessage * wpas_dbus_global_remove_interface(DBusMessage *message,
struct wpa_global *global)
{
struct wpa_supplicant *wpa_s;
char *path;
DBusMessage *reply = NULL;
if (!dbus_message_get_args(message, NULL,
DBUS_TYPE_OBJECT_PATH, &path,
DBUS_TYPE_INVALID)) {
reply = wpas_dbus_new_invalid_opts_error(message, NULL);
goto out;
}
wpa_s = wpa_supplicant_get_iface_by_dbus_path(global, path);
if (wpa_s == NULL) {
reply = wpas_dbus_new_invalid_iface_error(message);
goto out;
}
if (!wpa_supplicant_remove_iface(global, wpa_s, 0)) {
reply = wpas_dbus_new_success_reply(message);
} else {
reply = dbus_message_new_error(message,
WPAS_ERROR_REMOVE_ERROR,
"wpa_supplicant couldn't "
"remove this interface.");
}
out:
return reply;
}
/**
* wpas_dbus_global_get_interface - Get the object path for an interface name
* @message: Pointer to incoming dbus message
* @global: %wpa_supplicant global data structure
* Returns: The object path of the interface object,
* or a dbus error message with more information
*
* Handler function for "getInterface" method call. Handles requests
* by dbus clients for the object path of an specific network interface.
*/
DBusMessage * wpas_dbus_global_get_interface(DBusMessage *message,
struct wpa_global *global)
{
DBusMessage *reply = NULL;
const char *ifname;
const char *path;
struct wpa_supplicant *wpa_s;
if (!dbus_message_get_args(message, NULL,
DBUS_TYPE_STRING, &ifname,
DBUS_TYPE_INVALID)) {
reply = wpas_dbus_new_invalid_opts_error(message, NULL);
goto out;
}
wpa_s = wpa_supplicant_get_iface(global, ifname);
if (wpa_s == NULL) {
reply = wpas_dbus_new_invalid_iface_error(message);
goto out;
}
path = wpa_s->dbus_path;
reply = dbus_message_new_method_return(message);
dbus_message_append_args(reply,
DBUS_TYPE_OBJECT_PATH, &path,
DBUS_TYPE_INVALID);
out:
return reply;
}
/**
* wpas_dbus_global_set_debugparams- Set the debug params
* @message: Pointer to incoming dbus message
* @global: %wpa_supplicant global data structure
* Returns: a dbus message containing a UINT32 indicating success (1) or
* failure (0), or returns a dbus error message with more information
*
* Handler function for "setDebugParams" method call. Handles requests
* by dbus clients for the object path of an specific network interface.
*/
DBusMessage * wpas_dbus_global_set_debugparams(DBusMessage *message,
struct wpa_global *global)
{
DBusMessage *reply = NULL;
int debug_level;
dbus_bool_t debug_timestamp;
dbus_bool_t debug_show_keys;
if (!dbus_message_get_args(message, NULL,
DBUS_TYPE_INT32, &debug_level,
DBUS_TYPE_BOOLEAN, &debug_timestamp,
DBUS_TYPE_BOOLEAN, &debug_show_keys,
DBUS_TYPE_INVALID)) {
return wpas_dbus_new_invalid_opts_error(message, NULL);
}
if (wpa_supplicant_set_debug_params(global, debug_level,
debug_timestamp ? 1 : 0,
debug_show_keys ? 1 : 0)) {
return wpas_dbus_new_invalid_opts_error(message, NULL);
}
reply = wpas_dbus_new_success_reply(message);
return reply;
}
/**
* wpas_dbus_iface_scan - Request a wireless scan on an interface
* @message: Pointer to incoming dbus message
* @wpa_s: wpa_supplicant structure for a network interface
* Returns: a dbus message containing a UINT32 indicating success (1) or
* failure (0)
*
* Handler function for "scan" method call of a network device. Requests
* that wpa_supplicant perform a wireless scan as soon as possible
* on a particular wireless interface.
*/
DBusMessage * wpas_dbus_iface_scan(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
wpa_s->scan_req = MANUAL_SCAN_REQ;
wpa_supplicant_req_scan(wpa_s, 0, 0);
return wpas_dbus_new_success_reply(message);
}
/**
* wpas_dbus_iface_scan_results - Get the results of a recent scan request
* @message: Pointer to incoming dbus message
* @wpa_s: wpa_supplicant structure for a network interface
* Returns: a dbus message containing a dbus array of objects paths, or returns
* a dbus error message if not scan results could be found
*
* Handler function for "scanResults" method call of a network device. Returns
* a dbus message containing the object paths of wireless networks found.
*/
DBusMessage * wpas_dbus_iface_scan_results(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
DBusMessage *reply;
DBusMessageIter iter;
DBusMessageIter sub_iter;
struct wpa_bss *bss;
/* Create and initialize the return message */
reply = dbus_message_new_method_return(message);
dbus_message_iter_init_append(reply, &iter);
if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY,
DBUS_TYPE_OBJECT_PATH_AS_STRING,
&sub_iter))
goto error;
/* Loop through scan results and append each result's object path */
dl_list_for_each(bss, &wpa_s->bss_id, struct wpa_bss, list_id) {
char path_buf[WPAS_DBUS_OBJECT_PATH_MAX];
char *path = path_buf;
/* Construct the object path for this network. Note that ':'
* is not a valid character in dbus object paths.
*/
os_snprintf(path, WPAS_DBUS_OBJECT_PATH_MAX,
"%s/" WPAS_DBUS_BSSIDS_PART "/"
WPAS_DBUS_BSSID_FORMAT,
wpa_s->dbus_path, MAC2STR(bss->bssid));
if (!dbus_message_iter_append_basic(&sub_iter,
DBUS_TYPE_OBJECT_PATH,
&path))
goto error;
}
if (!dbus_message_iter_close_container(&iter, &sub_iter))
goto error;
return reply;
error:
dbus_message_unref(reply);
return dbus_message_new_error(message, WPAS_ERROR_INTERNAL_ERROR,
"an internal error occurred returning scan results");
}
/**
* wpas_dbus_bssid_properties - Return the properties of a scanned network
* @message: Pointer to incoming dbus message
* @wpa_s: wpa_supplicant structure for a network interface
* @res: wpa_supplicant scan result for which to get properties
* Returns: a dbus message containing the properties for the requested network
*
* Handler function for "properties" method call of a scanned network.
* Returns a dbus message containing the the properties.
*/
DBusMessage * wpas_dbus_bssid_properties(DBusMessage *message,
struct wpa_supplicant *wpa_s,
struct wpa_bss *bss)
{
DBusMessage *reply;
DBusMessageIter iter, iter_dict;
const u8 *ie;
/* Dump the properties into a dbus message */
reply = dbus_message_new_method_return(message);
dbus_message_iter_init_append(reply, &iter);
if (!wpa_dbus_dict_open_write(&iter, &iter_dict))
goto error;
if (!wpa_dbus_dict_append_byte_array(&iter_dict, "bssid",
(const char *) bss->bssid,
ETH_ALEN))
goto error;
ie = wpa_bss_get_ie(bss, WLAN_EID_SSID);
if (ie) {
if (!wpa_dbus_dict_append_byte_array(&iter_dict, "ssid",
(const char *) (ie + 2),
ie[1]))
goto error;
}
ie = wpa_bss_get_vendor_ie(bss, WPA_IE_VENDOR_TYPE);
if (ie) {
if (!wpa_dbus_dict_append_byte_array(&iter_dict, "wpaie",
(const char *) ie,
ie[1] + 2))
goto error;
}
ie = wpa_bss_get_ie(bss, WLAN_EID_RSN);
if (ie) {
if (!wpa_dbus_dict_append_byte_array(&iter_dict, "rsnie",
(const char *) ie,
ie[1] + 2))
goto error;
}
ie = wpa_bss_get_vendor_ie(bss, WPS_IE_VENDOR_TYPE);
if (ie) {
if (!wpa_dbus_dict_append_byte_array(&iter_dict, "wpsie",
(const char *) ie,
ie[1] + 2))
goto error;
}
if (bss->freq) {
if (!wpa_dbus_dict_append_int32(&iter_dict, "frequency",
bss->freq))
goto error;
}
if (!wpa_dbus_dict_append_uint16(&iter_dict, "capabilities",
bss->caps))
goto error;
if (!(bss->flags & WPA_BSS_QUAL_INVALID) &&
!wpa_dbus_dict_append_int32(&iter_dict, "quality", bss->qual))
goto error;
if (!(bss->flags & WPA_BSS_NOISE_INVALID) &&
!wpa_dbus_dict_append_int32(&iter_dict, "noise", bss->noise))
goto error;
if (!(bss->flags & WPA_BSS_LEVEL_INVALID) &&
!wpa_dbus_dict_append_int32(&iter_dict, "level", bss->level))
goto error;
if (!wpa_dbus_dict_append_int32(&iter_dict, "maxrate",
wpa_bss_get_max_rate(bss) * 500000))
goto error;
if (!wpa_dbus_dict_close_write(&iter, &iter_dict))
goto error;
return reply;
error:
if (reply)
dbus_message_unref(reply);
return dbus_message_new_error(message, WPAS_ERROR_INTERNAL_ERROR,
"an internal error occurred returning "
"BSSID properties.");
}
/**
* wpas_dbus_iface_capabilities - Return interface capabilities
* @message: Pointer to incoming dbus message
* @wpa_s: wpa_supplicant structure for a network interface
* Returns: A dbus message containing a dict of strings
*
* Handler function for "capabilities" method call of an interface.
*/
DBusMessage * wpas_dbus_iface_capabilities(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
DBusMessage *reply = NULL;
struct wpa_driver_capa capa;
int res;
DBusMessageIter iter, iter_dict;
char **eap_methods;
size_t num_items;
dbus_bool_t strict = FALSE;
DBusMessageIter iter_dict_entry, iter_dict_val, iter_array;
if (!dbus_message_get_args(message, NULL,
DBUS_TYPE_BOOLEAN, &strict,
DBUS_TYPE_INVALID))
strict = FALSE;
reply = dbus_message_new_method_return(message);
dbus_message_iter_init_append(reply, &iter);
if (!wpa_dbus_dict_open_write(&iter, &iter_dict))
goto error;
/* EAP methods */
eap_methods = eap_get_names_as_string_array(&num_items);
if (eap_methods) {
dbus_bool_t success = FALSE;
size_t i = 0;
success = wpa_dbus_dict_append_string_array(
&iter_dict, "eap", (const char **) eap_methods,
num_items);
/* free returned method array */
while (eap_methods[i])
os_free(eap_methods[i++]);
os_free(eap_methods);
if (!success)
goto error;
}
res = wpa_drv_get_capa(wpa_s, &capa);
/***** pairwise cipher */
if (res < 0) {
if (!strict) {
const char *args[] = {"CCMP", "TKIP", "NONE"};
if (!wpa_dbus_dict_append_string_array(
&iter_dict, "pairwise", args,
ARRAY_SIZE(args)))
goto error;
}
} else {
if (!wpa_dbus_dict_begin_string_array(&iter_dict, "pairwise",
&iter_dict_entry,
&iter_dict_val,
&iter_array))
goto error;
if (capa.enc & WPA_DRIVER_CAPA_ENC_CCMP) {
if (!wpa_dbus_dict_string_array_add_element(
&iter_array, "CCMP"))
goto error;
}
if (capa.enc & WPA_DRIVER_CAPA_ENC_TKIP) {
if (!wpa_dbus_dict_string_array_add_element(
&iter_array, "TKIP"))
goto error;
}
if (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA_NONE) {
if (!wpa_dbus_dict_string_array_add_element(
&iter_array, "NONE"))
goto error;
}
if (!wpa_dbus_dict_end_string_array(&iter_dict,
&iter_dict_entry,
&iter_dict_val,
&iter_array))
goto error;
}
/***** group cipher */
if (res < 0) {
if (!strict) {
const char *args[] = {
"CCMP", "TKIP", "WEP104", "WEP40"
};
if (!wpa_dbus_dict_append_string_array(
&iter_dict, "group", args,
ARRAY_SIZE(args)))
goto error;
}
} else {
if (!wpa_dbus_dict_begin_string_array(&iter_dict, "group",
&iter_dict_entry,
&iter_dict_val,
&iter_array))
goto error;
if (capa.enc & WPA_DRIVER_CAPA_ENC_CCMP) {
if (!wpa_dbus_dict_string_array_add_element(
&iter_array, "CCMP"))
goto error;
}
if (capa.enc & WPA_DRIVER_CAPA_ENC_TKIP) {
if (!wpa_dbus_dict_string_array_add_element(
&iter_array, "TKIP"))
goto error;
}
if (capa.enc & WPA_DRIVER_CAPA_ENC_WEP104) {
if (!wpa_dbus_dict_string_array_add_element(
&iter_array, "WEP104"))
goto error;
}
if (capa.enc & WPA_DRIVER_CAPA_ENC_WEP40) {
if (!wpa_dbus_dict_string_array_add_element(
&iter_array, "WEP40"))
goto error;
}
if (!wpa_dbus_dict_end_string_array(&iter_dict,
&iter_dict_entry,
&iter_dict_val,
&iter_array))
goto error;
}
/***** key management */
if (res < 0) {
if (!strict) {
const char *args[] = {
"WPA-PSK", "WPA-EAP", "IEEE8021X", "WPA-NONE",
"NONE"
};
if (!wpa_dbus_dict_append_string_array(
&iter_dict, "key_mgmt", args,
ARRAY_SIZE(args)))
goto error;
}
} else {
if (!wpa_dbus_dict_begin_string_array(&iter_dict, "key_mgmt",
&iter_dict_entry,
&iter_dict_val,
&iter_array))
goto error;
if (!wpa_dbus_dict_string_array_add_element(&iter_array,
"NONE"))
goto error;
if (!wpa_dbus_dict_string_array_add_element(&iter_array,
"IEEE8021X"))
goto error;
if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA |
WPA_DRIVER_CAPA_KEY_MGMT_WPA2)) {
if (!wpa_dbus_dict_string_array_add_element(
&iter_array, "WPA-EAP"))
goto error;
}
if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) {
if (!wpa_dbus_dict_string_array_add_element(
&iter_array, "WPA-PSK"))
goto error;
}
if (capa.key_mgmt & WPA_DRIVER_CAPA_KEY_MGMT_WPA_NONE) {
if (!wpa_dbus_dict_string_array_add_element(
&iter_array, "WPA-NONE"))
goto error;
}
if (!wpa_dbus_dict_end_string_array(&iter_dict,
&iter_dict_entry,
&iter_dict_val,
&iter_array))
goto error;
}
/***** WPA protocol */
if (res < 0) {
if (!strict) {
const char *args[] = { "RSN", "WPA" };
if (!wpa_dbus_dict_append_string_array(
&iter_dict, "proto", args,
ARRAY_SIZE(args)))
goto error;
}
} else {
if (!wpa_dbus_dict_begin_string_array(&iter_dict, "proto",
&iter_dict_entry,
&iter_dict_val,
&iter_array))
goto error;
if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK)) {
if (!wpa_dbus_dict_string_array_add_element(
&iter_array, "RSN"))
goto error;
}
if (capa.key_mgmt & (WPA_DRIVER_CAPA_KEY_MGMT_WPA |
WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK)) {
if (!wpa_dbus_dict_string_array_add_element(
&iter_array, "WPA"))
goto error;
}
if (!wpa_dbus_dict_end_string_array(&iter_dict,
&iter_dict_entry,
&iter_dict_val,
&iter_array))
goto error;
}
/***** auth alg */
if (res < 0) {
if (!strict) {
const char *args[] = { "OPEN", "SHARED", "LEAP" };
if (!wpa_dbus_dict_append_string_array(
&iter_dict, "auth_alg", args,
ARRAY_SIZE(args)))
goto error;
}
} else {
if (!wpa_dbus_dict_begin_string_array(&iter_dict, "auth_alg",
&iter_dict_entry,
&iter_dict_val,
&iter_array))
goto error;
if (capa.auth & (WPA_DRIVER_AUTH_OPEN)) {
if (!wpa_dbus_dict_string_array_add_element(
&iter_array, "OPEN"))
goto error;
}
if (capa.auth & (WPA_DRIVER_AUTH_SHARED)) {
if (!wpa_dbus_dict_string_array_add_element(
&iter_array, "SHARED"))
goto error;
}
if (capa.auth & (WPA_DRIVER_AUTH_LEAP)) {
if (!wpa_dbus_dict_string_array_add_element(
&iter_array, "LEAP"))
goto error;
}
if (!wpa_dbus_dict_end_string_array(&iter_dict,
&iter_dict_entry,
&iter_dict_val,
&iter_array))
goto error;
}
if (!wpa_dbus_dict_close_write(&iter, &iter_dict))
goto error;
return reply;
error:
if (reply)
dbus_message_unref(reply);
return dbus_message_new_error(message, WPAS_ERROR_INTERNAL_ERROR,
"an internal error occurred returning "
"interface capabilities.");
}
/**
* wpas_dbus_iface_add_network - Add a new configured network
* @message: Pointer to incoming dbus message
* @wpa_s: wpa_supplicant structure for a network interface
* Returns: A dbus message containing the object path of the new network
*
* Handler function for "addNetwork" method call of a network interface.
*/
DBusMessage * wpas_dbus_iface_add_network(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
DBusMessage *reply = NULL;
struct wpa_ssid *ssid;
char path_buf[WPAS_DBUS_OBJECT_PATH_MAX], *path = path_buf;
ssid = wpa_config_add_network(wpa_s->conf);
if (ssid == NULL) {
reply = dbus_message_new_error(message,
WPAS_ERROR_ADD_NETWORK_ERROR,
"wpa_supplicant could not add "
"a network on this interface.");
goto out;
}
wpas_notify_network_added(wpa_s, ssid);
ssid->disabled = 1;
wpa_config_set_network_defaults(ssid);
/* Construct the object path for this network. */
os_snprintf(path, WPAS_DBUS_OBJECT_PATH_MAX,
"%s/" WPAS_DBUS_NETWORKS_PART "/%d",
wpa_s->dbus_path, ssid->id);
reply = dbus_message_new_method_return(message);
dbus_message_append_args(reply, DBUS_TYPE_OBJECT_PATH,
&path, DBUS_TYPE_INVALID);
out:
return reply;
}
/**
* wpas_dbus_iface_remove_network - Remove a configured network
* @message: Pointer to incoming dbus message
* @wpa_s: wpa_supplicant structure for a network interface
* Returns: A dbus message containing a UINT32 indicating success (1) or
* failure (0)
*
* Handler function for "removeNetwork" method call of a network interface.
*/
DBusMessage * wpas_dbus_iface_remove_network(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
DBusMessage *reply = NULL;
const char *op;
char *iface = NULL, *net_id = NULL;
int id;
struct wpa_ssid *ssid;
if (!dbus_message_get_args(message, NULL,
DBUS_TYPE_OBJECT_PATH, &op,
DBUS_TYPE_INVALID)) {
reply = wpas_dbus_new_invalid_opts_error(message, NULL);
goto out;
}
/* Extract the network ID */
iface = wpas_dbus_decompose_object_path(op, &net_id, NULL);
if (iface == NULL || net_id == NULL) {
reply = wpas_dbus_new_invalid_network_error(message);
goto out;
}
/* Ensure the network is actually a child of this interface */
if (os_strcmp(iface, wpa_s->dbus_path) != 0) {
reply = wpas_dbus_new_invalid_network_error(message);
goto out;
}
id = strtoul(net_id, NULL, 10);
ssid = wpa_config_get_network(wpa_s->conf, id);
if (ssid == NULL) {
reply = wpas_dbus_new_invalid_network_error(message);
goto out;
}
wpas_notify_network_removed(wpa_s, ssid);
if (wpa_config_remove_network(wpa_s->conf, id) < 0) {
reply = dbus_message_new_error(message,
WPAS_ERROR_REMOVE_NETWORK_ERROR,
"error removing the specified "
"on this interface.");
goto out;
}
if (ssid == wpa_s->current_ssid)
wpa_supplicant_deauthenticate(wpa_s,
WLAN_REASON_DEAUTH_LEAVING);
reply = wpas_dbus_new_success_reply(message);
out:
os_free(iface);
os_free(net_id);
return reply;
}
static const char *dont_quote[] = {
"key_mgmt", "proto", "pairwise", "auth_alg", "group", "eap",
"opensc_engine_path", "pkcs11_engine_path", "pkcs11_module_path",
"bssid", NULL
};
static dbus_bool_t should_quote_opt(const char *key)
{
int i = 0;
while (dont_quote[i] != NULL) {
if (strcmp(key, dont_quote[i]) == 0)
return FALSE;
i++;
}
return TRUE;
}
/**
* wpas_dbus_iface_set_network - Set options for a configured network
* @message: Pointer to incoming dbus message
* @wpa_s: wpa_supplicant structure for a network interface
* @ssid: wpa_ssid structure for a configured network
* Returns: a dbus message containing a UINT32 indicating success (1) or
* failure (0)
*
* Handler function for "set" method call of a configured network.
*/
DBusMessage * wpas_dbus_iface_set_network(DBusMessage *message,
struct wpa_supplicant *wpa_s,
struct wpa_ssid *ssid)
{
DBusMessage *reply = NULL;
struct wpa_dbus_dict_entry entry = { .type = DBUS_TYPE_STRING };
DBusMessageIter iter, iter_dict;
dbus_message_iter_init(message, &iter);
if (!wpa_dbus_dict_open_read(&iter, &iter_dict, NULL)) {
reply = wpas_dbus_new_invalid_opts_error(message, NULL);
goto out;
}
while (wpa_dbus_dict_has_dict_entry(&iter_dict)) {
char *value = NULL;
size_t size = 50;
int ret;
if (!wpa_dbus_dict_get_entry(&iter_dict, &entry)) {
reply = wpas_dbus_new_invalid_opts_error(message,
NULL);
goto out;
}
/* Type conversions, since wpa_supplicant wants strings */
if (entry.type == DBUS_TYPE_ARRAY &&
entry.array_type == DBUS_TYPE_BYTE) {
if (entry.array_len <= 0)
goto error;
size = entry.array_len * 2 + 1;
value = os_zalloc(size);
if (value == NULL)
goto error;
ret = wpa_snprintf_hex(value, size,
(u8 *) entry.bytearray_value,
entry.array_len);
if (ret <= 0)
goto error;
} else if (entry.type == DBUS_TYPE_STRING) {
if (should_quote_opt(entry.key)) {
size = os_strlen(entry.str_value);
/* Zero-length option check */
if (size <= 0)
goto error;
size += 3; /* For quotes and terminator */
value = os_zalloc(size);
if (value == NULL)
goto error;
ret = os_snprintf(value, size, "\"%s\"",
entry.str_value);
if (os_snprintf_error(size, ret))
goto error;
} else {
value = os_strdup(entry.str_value);
if (value == NULL)
goto error;
}
} else if (entry.type == DBUS_TYPE_UINT32) {
value = os_zalloc(size);
if (value == NULL)
goto error;
ret = os_snprintf(value, size, "%u",
entry.uint32_value);
if (os_snprintf_error(size, ret))
goto error;
} else if (entry.type == DBUS_TYPE_INT32) {
value = os_zalloc(size);
if (value == NULL)
goto error;
ret = os_snprintf(value, size, "%d",
entry.int32_value);
if (os_snprintf_error(size, ret))
goto error;
} else
goto error;
if (wpa_config_set(ssid, entry.key, value, 0) < 0)
goto error;
if ((os_strcmp(entry.key, "psk") == 0 &&
value[0] == '"' && ssid->ssid_len) ||
(os_strcmp(entry.key, "ssid") == 0 && ssid->passphrase))
wpa_config_update_psk(ssid);
else if (os_strcmp(entry.key, "priority") == 0)
wpa_config_update_prio_list(wpa_s->conf);
os_free(value);
wpa_dbus_dict_entry_clear(&entry);
continue;
error:
os_free(value);
reply = wpas_dbus_new_invalid_opts_error(message, entry.key);
wpa_dbus_dict_entry_clear(&entry);
break;
}
if (!reply)
reply = wpas_dbus_new_success_reply(message);
out:
return reply;
}
/**
* wpas_dbus_iface_enable_network - Mark a configured network as enabled
* @message: Pointer to incoming dbus message
* @wpa_s: wpa_supplicant structure for a network interface
* @ssid: wpa_ssid structure for a configured network
* Returns: A dbus message containing a UINT32 indicating success (1) or
* failure (0)
*
* Handler function for "enable" method call of a configured network.
*/
DBusMessage * wpas_dbus_iface_enable_network(DBusMessage *message,
struct wpa_supplicant *wpa_s,
struct wpa_ssid *ssid)
{
wpa_supplicant_enable_network(wpa_s, ssid);
return wpas_dbus_new_success_reply(message);
}
/**
* wpas_dbus_iface_disable_network - Mark a configured network as disabled
* @message: Pointer to incoming dbus message
* @wpa_s: wpa_supplicant structure for a network interface
* @ssid: wpa_ssid structure for a configured network
* Returns: A dbus message containing a UINT32 indicating success (1) or
* failure (0)
*
* Handler function for "disable" method call of a configured network.
*/
DBusMessage * wpas_dbus_iface_disable_network(DBusMessage *message,
struct wpa_supplicant *wpa_s,
struct wpa_ssid *ssid)
{
wpa_supplicant_disable_network(wpa_s, ssid);
return wpas_dbus_new_success_reply(message);
}
/**
* wpas_dbus_iface_select_network - Attempt association with a configured network
* @message: Pointer to incoming dbus message
* @wpa_s: wpa_supplicant structure for a network interface
* Returns: A dbus message containing a UINT32 indicating success (1) or
* failure (0)
*
* Handler function for "selectNetwork" method call of network interface.
*/
DBusMessage * wpas_dbus_iface_select_network(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
DBusMessage *reply = NULL;
const char *op;
struct wpa_ssid *ssid;
char *iface_obj_path = NULL;
char *network = NULL;
if (os_strlen(dbus_message_get_signature(message)) == 0) {
/* Any network */
ssid = NULL;
} else {
int nid;
if (!dbus_message_get_args(message, NULL,
DBUS_TYPE_OBJECT_PATH, &op,
DBUS_TYPE_INVALID)) {
reply = wpas_dbus_new_invalid_opts_error(message,
NULL);
goto out;
}
/* Extract the network number */
iface_obj_path = wpas_dbus_decompose_object_path(op,
&network,
NULL);
if (iface_obj_path == NULL) {
reply = wpas_dbus_new_invalid_iface_error(message);
goto out;
}
/* Ensure the object path really points to this interface */
if (network == NULL ||
os_strcmp(iface_obj_path, wpa_s->dbus_path) != 0) {
reply = wpas_dbus_new_invalid_network_error(message);
goto out;
}
nid = strtoul(network, NULL, 10);
if (errno == EINVAL) {
reply = wpas_dbus_new_invalid_network_error(message);
goto out;
}
ssid = wpa_config_get_network(wpa_s->conf, nid);
if (ssid == NULL) {
reply = wpas_dbus_new_invalid_network_error(message);
goto out;
}
}
/* Finally, associate with the network */
wpa_supplicant_select_network(wpa_s, ssid);
reply = wpas_dbus_new_success_reply(message);
out:
os_free(iface_obj_path);
os_free(network);
return reply;
}
/**
* wpas_dbus_iface_disconnect - Terminate the current connection
* @message: Pointer to incoming dbus message
* @wpa_s: wpa_supplicant structure for a network interface
* Returns: A dbus message containing a UINT32 indicating success (1) or
* failure (0)
*
* Handler function for "disconnect" method call of network interface.
*/
DBusMessage * wpas_dbus_iface_disconnect(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
wpa_s->disconnected = 1;
wpa_supplicant_deauthenticate(wpa_s, WLAN_REASON_DEAUTH_LEAVING);
return wpas_dbus_new_success_reply(message);
}
/**
* wpas_dbus_iface_set_ap_scan - Control roaming mode
* @message: Pointer to incoming dbus message
* @wpa_s: wpa_supplicant structure for a network interface
* Returns: A dbus message containing a UINT32 indicating success (1) or
* failure (0)
*
* Handler function for "setAPScan" method call.
*/
DBusMessage * wpas_dbus_iface_set_ap_scan(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
DBusMessage *reply = NULL;
dbus_uint32_t ap_scan = 1;
if (!dbus_message_get_args(message, NULL, DBUS_TYPE_UINT32, &ap_scan,
DBUS_TYPE_INVALID)) {
reply = wpas_dbus_new_invalid_opts_error(message, NULL);
goto out;
}
if (wpa_supplicant_set_ap_scan(wpa_s, ap_scan)) {
reply = wpas_dbus_new_invalid_opts_error(message, NULL);
goto out;
}
reply = wpas_dbus_new_success_reply(message);
out:
return reply;
}
/**
* wpas_dbus_iface_set_smartcard_modules - Set smartcard related module paths
* @message: Pointer to incoming dbus message
* @wpa_s: wpa_supplicant structure for a network interface
* Returns: A dbus message containing a UINT32 indicating success (1) or
* failure (0)
*
* Handler function for "setSmartcardModules" method call.
*/
DBusMessage * wpas_dbus_iface_set_smartcard_modules(
DBusMessage *message, struct wpa_supplicant *wpa_s)
{
DBusMessageIter iter, iter_dict;
char *opensc_engine_path = NULL;
char *pkcs11_engine_path = NULL;
char *pkcs11_module_path = NULL;
struct wpa_dbus_dict_entry entry;
if (!dbus_message_iter_init(message, &iter))
goto error;
if (!wpa_dbus_dict_open_read(&iter, &iter_dict, NULL))
goto error;
while (wpa_dbus_dict_has_dict_entry(&iter_dict)) {
if (!wpa_dbus_dict_get_entry(&iter_dict, &entry))
goto error;
if (!strcmp(entry.key, "opensc_engine_path") &&
(entry.type == DBUS_TYPE_STRING)) {
os_free(opensc_engine_path);
opensc_engine_path = os_strdup(entry.str_value);
if (opensc_engine_path == NULL)
goto error;
} else if (!strcmp(entry.key, "pkcs11_engine_path") &&
(entry.type == DBUS_TYPE_STRING)) {
os_free(pkcs11_engine_path);
pkcs11_engine_path = os_strdup(entry.str_value);
if (pkcs11_engine_path == NULL)
goto error;
} else if (!strcmp(entry.key, "pkcs11_module_path") &&
(entry.type == DBUS_TYPE_STRING)) {
os_free(pkcs11_module_path);
pkcs11_module_path = os_strdup(entry.str_value);
if (pkcs11_module_path == NULL)
goto error;
} else {
wpa_dbus_dict_entry_clear(&entry);
goto error;
}
wpa_dbus_dict_entry_clear(&entry);
}
os_free(wpa_s->conf->opensc_engine_path);
wpa_s->conf->opensc_engine_path = opensc_engine_path;
os_free(wpa_s->conf->pkcs11_engine_path);
wpa_s->conf->pkcs11_engine_path = pkcs11_engine_path;
os_free(wpa_s->conf->pkcs11_module_path);
wpa_s->conf->pkcs11_module_path = pkcs11_module_path;
wpa_sm_set_eapol(wpa_s->wpa, NULL);
eapol_sm_deinit(wpa_s->eapol);
wpa_s->eapol = NULL;
wpa_supplicant_init_eapol(wpa_s);
wpa_sm_set_eapol(wpa_s->wpa, wpa_s->eapol);
return wpas_dbus_new_success_reply(message);
error:
os_free(opensc_engine_path);
os_free(pkcs11_engine_path);
os_free(pkcs11_module_path);
return wpas_dbus_new_invalid_opts_error(message, NULL);
}
/**
* wpas_dbus_iface_get_state - Get interface state
* @message: Pointer to incoming dbus message
* @wpa_s: wpa_supplicant structure for a network interface
* Returns: A dbus message containing a STRING representing the current
* interface state
*
* Handler function for "state" method call.
*/
DBusMessage * wpas_dbus_iface_get_state(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
DBusMessage *reply = NULL;
const char *str_state;
reply = dbus_message_new_method_return(message);
if (reply != NULL) {
str_state = wpa_supplicant_state_txt(wpa_s->wpa_state);
dbus_message_append_args(reply, DBUS_TYPE_STRING, &str_state,
DBUS_TYPE_INVALID);
}
return reply;
}
/**
* wpas_dbus_iface_get_scanning - Get interface scanning state
* @message: Pointer to incoming dbus message
* @wpa_s: wpa_supplicant structure for a network interface
* Returns: A dbus message containing whether the interface is scanning
*
* Handler function for "scanning" method call.
*/
DBusMessage * wpas_dbus_iface_get_scanning(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
DBusMessage *reply = NULL;
dbus_bool_t scanning = wpa_s->scanning ? TRUE : FALSE;
reply = dbus_message_new_method_return(message);
if (reply != NULL) {
dbus_message_append_args(reply, DBUS_TYPE_BOOLEAN, &scanning,
DBUS_TYPE_INVALID);
} else {
wpa_printf(MSG_ERROR, "dbus: Not enough memory to return "
"scanning state");
}
return reply;
}
#ifndef CONFIG_NO_CONFIG_BLOBS
/**
* wpas_dbus_iface_set_blobs - Store named binary blobs (ie, for certificates)
* @message: Pointer to incoming dbus message
* @wpa_s: %wpa_supplicant data structure
* Returns: A dbus message containing a UINT32 indicating success (1) or
* failure (0)
*
* Asks wpa_supplicant to internally store a one or more binary blobs.
*/
DBusMessage * wpas_dbus_iface_set_blobs(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
DBusMessage *reply = NULL;
struct wpa_dbus_dict_entry entry = { .type = DBUS_TYPE_STRING };
DBusMessageIter iter, iter_dict;
dbus_message_iter_init(message, &iter);
if (!wpa_dbus_dict_open_read(&iter, &iter_dict, NULL))
return wpas_dbus_new_invalid_opts_error(message, NULL);
while (wpa_dbus_dict_has_dict_entry(&iter_dict)) {
struct wpa_config_blob *blob;
if (!wpa_dbus_dict_get_entry(&iter_dict, &entry)) {
reply = wpas_dbus_new_invalid_opts_error(message,
NULL);
break;
}
if (entry.type != DBUS_TYPE_ARRAY ||
entry.array_type != DBUS_TYPE_BYTE) {
reply = wpas_dbus_new_invalid_opts_error(
message, "Byte array expected.");
break;
}
if ((entry.array_len <= 0) || (entry.array_len > 65536) ||
!strlen(entry.key)) {
reply = wpas_dbus_new_invalid_opts_error(
message, "Invalid array size.");
break;
}
blob = os_zalloc(sizeof(*blob));
if (blob == NULL) {
reply = dbus_message_new_error(
message, WPAS_ERROR_ADD_ERROR,
"Not enough memory to add blob.");
break;
}
blob->data = os_zalloc(entry.array_len);
if (blob->data == NULL) {
reply = dbus_message_new_error(
message, WPAS_ERROR_ADD_ERROR,
"Not enough memory to add blob data.");
os_free(blob);
break;
}
blob->name = os_strdup(entry.key);
blob->len = entry.array_len;
os_memcpy(blob->data, (u8 *) entry.bytearray_value,
entry.array_len);
if (blob->name == NULL) {
wpa_config_free_blob(blob);
reply = dbus_message_new_error(
message, WPAS_ERROR_ADD_ERROR,
"Error adding blob.");
break;
}
/* Success */
if (!wpa_config_remove_blob(wpa_s->conf, blob->name))
wpas_notify_blob_removed(wpa_s, blob->name);
wpa_config_set_blob(wpa_s->conf, blob);
wpas_notify_blob_added(wpa_s, blob->name);
wpa_dbus_dict_entry_clear(&entry);
}
wpa_dbus_dict_entry_clear(&entry);
return reply ? reply : wpas_dbus_new_success_reply(message);
}
/**
* wpas_dbus_iface_remove_blob - Remove named binary blobs
* @message: Pointer to incoming dbus message
* @wpa_s: %wpa_supplicant data structure
* Returns: A dbus message containing a UINT32 indicating success (1) or
* failure (0)
*
* Asks wpa_supplicant to remove one or more previously stored binary blobs.
*/
DBusMessage * wpas_dbus_iface_remove_blobs(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
DBusMessageIter iter, array;
char *err_msg = NULL;
dbus_message_iter_init(message, &iter);
if ((dbus_message_iter_get_arg_type (&iter) != DBUS_TYPE_ARRAY) ||
(dbus_message_iter_get_element_type (&iter) != DBUS_TYPE_STRING))
return wpas_dbus_new_invalid_opts_error(message, NULL);
dbus_message_iter_recurse(&iter, &array);
while (dbus_message_iter_get_arg_type(&array) == DBUS_TYPE_STRING) {
const char *name;
dbus_message_iter_get_basic(&array, &name);
if (!os_strlen(name))
err_msg = "Invalid blob name.";
else if (wpa_config_remove_blob(wpa_s->conf, name) != 0)
err_msg = "Error removing blob.";
else
wpas_notify_blob_removed(wpa_s, name);
dbus_message_iter_next(&array);
}
if (err_msg)
return dbus_message_new_error(message, WPAS_ERROR_REMOVE_ERROR,
err_msg);
return wpas_dbus_new_success_reply(message);
}
#endif /* CONFIG_NO_CONFIG_BLOBS */
/**
* wpas_dbus_iface_flush - Clear BSS of old or all inactive entries
* @message: Pointer to incoming dbus message
* @wpa_s: %wpa_supplicant data structure
* Returns: a dbus message containing a UINT32 indicating success (1) or
* failure (0), or returns a dbus error message with more information
*
* Handler function for "flush" method call. Handles requests for an
* interface with an optional "age" parameter that specifies the minimum
* age of a BSS to be flushed.
*/
DBusMessage * wpas_dbus_iface_flush(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
int flush_age = 0;
if (os_strlen(dbus_message_get_signature(message)) != 0 &&
!dbus_message_get_args(message, NULL,
DBUS_TYPE_INT32, &flush_age,
DBUS_TYPE_INVALID)) {
return wpas_dbus_new_invalid_opts_error(message, NULL);
}
if (flush_age == 0)
wpa_bss_flush(wpa_s);
else
wpa_bss_flush_by_age(wpa_s, flush_age);
return wpas_dbus_new_success_reply(message);
}
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