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hostapd/wpa_supplicant/dbus/dbus_new_handlers_p2p.c
Dan Williams e9ae405907 dbus: Do not segfault if P2P is disabled 
Various pieces of the P2P code assume that P2P is enabled, so make
the D-Bus code not call the P2P stuff if P2P is disabled. Also
ensures that if P2P is disabled a suitable error is returned to
the D-Bus caller.

Signed-off-by: Dan Williams <dcbw@redhat.com>
2011-08-07 11:21:52 +03:00

2149 lines
57 KiB
C
Raw Blame History

/*
* WPA Supplicant / dbus-based control interface (P2P)
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* Alternatively, this software may be distributed under the terms of BSD
* license.
*
* See README and COPYING for more details.
*/
#include "includes.h"
#include "utils/includes.h"
#include "common.h"
#include "../config.h"
#include "../wpa_supplicant_i.h"
#include "../wps_supplicant.h"
#include "../notify.h"
#include "dbus_new_helpers.h"
#include "dbus_new.h"
#include "dbus_new_handlers.h"
#include "dbus_new_handlers_p2p.h"
#include "dbus_dict_helpers.h"
#include "p2p/p2p.h"
#include "common/ieee802_11_defs.h"
#include "ap/hostapd.h"
#include "ap/ap_config.h"
#include "ap/wps_hostapd.h"
#include "../p2p_supplicant.h"
/**
* Parses out the mac address from the peer object path.
* @peer_path - object path of the form
* /fi/w1/wpa_supplicant1/Interfaces/n/Peers/00112233445566 (no colons)
* @addr - out param must be of ETH_ALEN size
* Returns 0 if valid (including MAC), -1 otherwise
*/
static int parse_peer_object_path(char *peer_path, u8 addr[ETH_ALEN])
{
char *p;
if (!peer_path)
return -1;
p = strrchr(peer_path, '/');
if (!p)
return -1;
p++;
return hwaddr_compact_aton(p, addr);
}
/**
* wpas_dbus_error_persistent_group_unknown - Return a new PersistentGroupUnknown
* 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 persistent group error.
*/
static DBusMessage * wpas_dbus_error_persistent_group_unknown(
DBusMessage *message)
{
return dbus_message_new_error(message, WPAS_DBUS_ERROR_NETWORK_UNKNOWN,
"There is no such persistent group in "
"this P2P device.");
}
DBusMessage * wpas_dbus_handler_p2p_find(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
struct wpa_dbus_dict_entry entry;
DBusMessage *reply = NULL;
DBusMessageIter iter;
DBusMessageIter iter_dict;
unsigned int timeout = 0;
enum p2p_discovery_type type = P2P_FIND_ONLY_SOCIAL;
int num_req_dev_types = 0;
unsigned int i;
u8 *req_dev_types = NULL;
dbus_message_iter_init(message, &iter);
entry.key = NULL;
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 (!os_strcmp(entry.key, "Timeout") &&
(entry.type == DBUS_TYPE_INT32)) {
timeout = entry.uint32_value;
} else if (os_strcmp(entry.key, "RequestedDeviceTypes") == 0) {
if ((entry.type != DBUS_TYPE_ARRAY) ||
(entry.array_type != WPAS_DBUS_TYPE_BINARRAY))
goto error_clear;
req_dev_types =
os_malloc(WPS_DEV_TYPE_LEN * entry.array_len);
if (!req_dev_types)
goto error_clear;
for (i = 0; i < entry.array_len; i++) {
if (wpabuf_len(entry.binarray_value[i]) !=
WPS_DEV_TYPE_LEN)
goto error_clear;
os_memcpy(req_dev_types + i * WPS_DEV_TYPE_LEN,
wpabuf_head(entry.binarray_value[i]),
WPS_DEV_TYPE_LEN);
}
num_req_dev_types = entry.array_len;
} else
goto error_clear;
wpa_dbus_dict_entry_clear(&entry);
}
wpas_p2p_find(wpa_s, timeout, type, num_req_dev_types, req_dev_types);
os_free(req_dev_types);
return reply;
error_clear:
wpa_dbus_dict_entry_clear(&entry);
error:
os_free(req_dev_types);
reply = wpas_dbus_error_invalid_args(message, entry.key);
return reply;
}
DBusMessage * wpas_dbus_handler_p2p_stop_find(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
wpas_p2p_stop_find(wpa_s);
return NULL;
}
DBusMessage * wpas_dbus_handler_p2p_rejectpeer(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
DBusMessageIter iter;
char *peer_object_path = NULL;
u8 peer_addr[ETH_ALEN];
dbus_message_iter_init(message, &iter);
dbus_message_iter_get_basic(&iter, &peer_object_path);
if (parse_peer_object_path(peer_object_path, peer_addr) < 0)
return wpas_dbus_error_invalid_args(message, NULL);
if (wpas_p2p_reject(wpa_s, peer_addr) < 0)
return wpas_dbus_error_unknown_error(message,
"Failed to call wpas_p2p_reject method.");
return NULL;
}
DBusMessage * wpas_dbus_handler_p2p_listen(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
dbus_int32_t timeout = 0;
if (!dbus_message_get_args(message, NULL, DBUS_TYPE_INT32, &timeout,
DBUS_TYPE_INVALID))
return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
if (wpas_p2p_listen(wpa_s, (unsigned int)timeout))
return dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
return NULL;
}
DBusMessage * wpas_dbus_handler_p2p_extendedlisten(
DBusMessage *message, struct wpa_supplicant *wpa_s)
{
unsigned int period = 0, interval = 0;
struct wpa_dbus_dict_entry entry;
DBusMessageIter iter;
DBusMessageIter iter_dict;
dbus_message_iter_init(message, &iter);
entry.key = NULL;
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 (!os_strcmp(entry.key, "period") &&
(entry.type == DBUS_TYPE_INT32))
period = entry.uint32_value;
else if (!os_strcmp(entry.key, "interval") &&
(entry.type == DBUS_TYPE_INT32))
interval = entry.uint32_value;
else
goto error_clear;
wpa_dbus_dict_entry_clear(&entry);
}
if (wpas_p2p_ext_listen(wpa_s, period, interval))
return wpas_dbus_error_unknown_error(
message, "failed to initiate a p2p_ext_listen.");
return NULL;
error_clear:
wpa_dbus_dict_entry_clear(&entry);
error:
return wpas_dbus_error_invalid_args(message, entry.key);
}
DBusMessage * wpas_dbus_handler_p2p_presence_request(
DBusMessage *message, struct wpa_supplicant *wpa_s)
{
unsigned int dur1 = 0, int1 = 0, dur2 = 0, int2 = 0;
struct wpa_dbus_dict_entry entry;
DBusMessageIter iter;
DBusMessageIter iter_dict;
dbus_message_iter_init(message, &iter);
entry.key = NULL;
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 (!os_strcmp(entry.key, "duration1") &&
(entry.type == DBUS_TYPE_INT32))
dur1 = entry.uint32_value;
else if (!os_strcmp(entry.key, "interval1") &&
entry.type == DBUS_TYPE_INT32)
int1 = entry.uint32_value;
else if (!os_strcmp(entry.key, "duration2") &&
entry.type == DBUS_TYPE_INT32)
dur2 = entry.uint32_value;
else if (!os_strcmp(entry.key, "interval2") &&
entry.type == DBUS_TYPE_INT32)
int2 = entry.uint32_value;
else
goto error_clear;
wpa_dbus_dict_entry_clear(&entry);
}
if (wpas_p2p_presence_req(wpa_s, dur1, int1, dur2, int2) < 0)
return wpas_dbus_error_unknown_error(message,
"Failed to invoke presence request.");
return NULL;
error_clear:
wpa_dbus_dict_entry_clear(&entry);
error:
return wpas_dbus_error_invalid_args(message, entry.key);
}
DBusMessage * wpas_dbus_handler_p2p_group_add(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
DBusMessageIter iter_dict;
DBusMessage *reply = NULL;
DBusMessageIter iter;
struct wpa_dbus_dict_entry entry;
char *pg_object_path = NULL;
int persistent_group = 0;
int freq = 0;
char *iface = NULL;
char *net_id_str = NULL;
unsigned int group_id = 0;
struct wpa_ssid *ssid;
dbus_message_iter_init(message, &iter);
if (!wpa_dbus_dict_open_read(&iter, &iter_dict, NULL))
goto inv_args;
while (wpa_dbus_dict_has_dict_entry(&iter_dict)) {
if (!wpa_dbus_dict_get_entry(&iter_dict, &entry))
goto inv_args;
if (!os_strcmp(entry.key, "persistent") &&
(entry.type == DBUS_TYPE_BOOLEAN)) {
persistent_group = (entry.bool_value == TRUE) ? 1 : 0;
} else if (!os_strcmp(entry.key, "frequency") &&
(entry.type == DBUS_TYPE_INT32)) {
freq = entry.int32_value;
if (freq <= 0)
goto inv_args_clear;
} else if (!os_strcmp(entry.key, "persistent_group_object") &&
entry.type == DBUS_TYPE_OBJECT_PATH)
pg_object_path = os_strdup(entry.str_value);
else
goto inv_args_clear;
wpa_dbus_dict_entry_clear(&entry);
}
if (pg_object_path != NULL) {
/*
* A persistent group Object Path is defined meaning we want
* to re-invoke a persistent group.
*/
iface = wpas_dbus_new_decompose_object_path(pg_object_path, 1,
&net_id_str, NULL);
if (iface == NULL ||
os_strcmp(iface, wpa_s->dbus_new_path) != 0) {
reply =
wpas_dbus_error_invalid_args(message,
pg_object_path);
goto out;
}
group_id = strtoul(net_id_str, NULL, 10);
if (errno == EINVAL) {
reply = wpas_dbus_error_invalid_args(
message, pg_object_path);
goto out;
}
/* Get the SSID structure form the persistant group id */
ssid = wpa_config_get_network(wpa_s->conf, group_id);
if (ssid == NULL || ssid->disabled != 2)
goto inv_args;
if (wpas_p2p_group_add_persistent(wpa_s, ssid, 0, freq)) {
reply = wpas_dbus_error_unknown_error(
message,
"Failed to reinvoke a persistent group");
goto out;
}
} else if (wpas_p2p_group_add(wpa_s, persistent_group, freq))
goto inv_args;
out:
os_free(pg_object_path);
os_free(net_id_str);
os_free(iface);
return reply;
inv_args_clear:
wpa_dbus_dict_entry_clear(&entry);
inv_args:
reply = wpas_dbus_error_invalid_args(message, NULL);
goto out;
}
DBusMessage * wpas_dbus_handler_p2p_disconnect(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
if (wpas_p2p_disconnect(wpa_s))
return wpas_dbus_error_unknown_error(message,
"failed to disconnect");
return NULL;
}
static dbus_bool_t wpa_dbus_p2p_check_enabled(struct wpa_supplicant *wpa_s,
DBusMessage *message,
DBusMessage **out_reply,
DBusError *error)
{
/* Return an error message or an error if P2P isn't available */
if (wpa_s->global->p2p_disabled || wpa_s->global->p2p == NULL) {
if (out_reply) {
*out_reply = dbus_message_new_error(
message, DBUS_ERROR_FAILED,
"P2P is not available for this interface");
}
dbus_set_error_const(error, DBUS_ERROR_FAILED,
"P2P is not available for this "
"interface");
return FALSE;
}
return TRUE;
}
DBusMessage * wpas_dbus_handler_p2p_flush(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
DBusMessage *reply = NULL;
if (!wpa_dbus_p2p_check_enabled(wpa_s, message, &reply, NULL))
return reply;
os_memset(wpa_s->p2p_auth_invite, 0, ETH_ALEN);
wpa_s->force_long_sd = 0;
p2p_flush(wpa_s->global->p2p);
return NULL;
}
DBusMessage * wpas_dbus_handler_p2p_connect(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
DBusMessageIter iter_dict;
DBusMessage *reply = NULL;
DBusMessageIter iter;
struct wpa_dbus_dict_entry entry;
char *peer_object_path = NULL;
int persistent_group = 0;
int join = 0;
int authorize_only = 0;
int go_intent = -1;
int freq = 0;
u8 addr[ETH_ALEN];
char *pin = NULL;
enum p2p_wps_method wps_method = WPS_NOT_READY;
int new_pin;
char *err_msg = NULL;
char *iface = NULL;
if (!wpa_dbus_p2p_check_enabled(wpa_s, message, &reply, NULL))
return reply;
dbus_message_iter_init(message, &iter);
if (!wpa_dbus_dict_open_read(&iter, &iter_dict, NULL))
goto inv_args;
while (wpa_dbus_dict_has_dict_entry(&iter_dict)) {
if (!wpa_dbus_dict_get_entry(&iter_dict, &entry))
goto inv_args;
if (!os_strcmp(entry.key, "peer") &&
(entry.type == DBUS_TYPE_OBJECT_PATH)) {
peer_object_path = os_strdup(entry.str_value);
} else if (!os_strcmp(entry.key, "persistent") &&
(entry.type == DBUS_TYPE_BOOLEAN)) {
persistent_group = (entry.bool_value == TRUE) ? 1 : 0;
} else if (!os_strcmp(entry.key, "join") &&
(entry.type == DBUS_TYPE_BOOLEAN)) {
join = (entry.bool_value == TRUE) ? 1 : 0;
} else if (!os_strcmp(entry.key, "authorize_only") &&
(entry.type == DBUS_TYPE_BOOLEAN)) {
authorize_only = (entry.bool_value == TRUE) ? 1 : 0;
} else if (!os_strcmp(entry.key, "frequency") &&
(entry.type == DBUS_TYPE_INT32)) {
freq = entry.int32_value;
if (freq <= 0)
goto inv_args_clear;
} else if (!os_strcmp(entry.key, "go_intent") &&
(entry.type == DBUS_TYPE_INT32)) {
go_intent = entry.int32_value;
if ((go_intent < 0) || (go_intent > 15))
goto inv_args_clear;
} else if (!os_strcmp(entry.key, "wps_method") &&
(entry.type == DBUS_TYPE_STRING)) {
if (!os_strcmp(entry.str_value, "pbc"))
wps_method = WPS_PBC;
else if (!os_strcmp(entry.str_value, "pin"))
wps_method = WPS_PIN_DISPLAY;
else if (!os_strcmp(entry.str_value, "label"))
wps_method = WPS_PIN_LABEL;
else if (!os_strcmp(entry.str_value, "display"))
wps_method = WPS_PIN_DISPLAY;
else if (!os_strcmp(entry.str_value, "keypad"))
wps_method = WPS_PIN_KEYPAD;
else
goto inv_args_clear;
} else if (!os_strcmp(entry.key, "pin") &&
(entry.type == DBUS_TYPE_STRING)) {
pin = os_strdup(entry.str_value);
} else
goto inv_args_clear;
wpa_dbus_dict_entry_clear(&entry);
}
if (!peer_object_path || (wps_method == WPS_NOT_READY) ||
(parse_peer_object_path(peer_object_path, addr) < 0) ||
(p2p_get_peer_info(wpa_s->global->p2p, addr, 0, NULL, 0) < 0))
goto inv_args;
/*
* Validate the wps_method specified and the pin value.
*/
if ((!pin || !pin[0]) &&
((wps_method == WPS_PIN_LABEL) || (wps_method == WPS_PIN_KEYPAD)))
goto inv_args;
new_pin = wpas_p2p_connect(wpa_s, addr, pin, wps_method,
persistent_group, join, authorize_only,
go_intent, freq);
if (new_pin >= 0) {
reply = dbus_message_new_method_return(message);
dbus_message_append_args(reply, DBUS_TYPE_INT32,
&new_pin, DBUS_TYPE_INVALID);
} else {
switch (new_pin) {
case -2:
err_msg = "connect failed due to channel "
"unavailability.";
iface = WPAS_DBUS_ERROR_CONNECT_CHANNEL_UNAVAILABLE;
break;
case -3:
err_msg = "connect failed due to unsupported channel.";
iface = WPAS_DBUS_ERROR_CONNECT_CHANNEL_UNSUPPORTED;
break;
default:
err_msg = "connect failed due to unspecified error.";
iface = WPAS_DBUS_ERROR_CONNECT_UNSPECIFIED_ERROR;
break;
}
/*
* TODO:
* Do we need specialized errors corresponding to above
* error conditions as against just returning a different
* error message?
*/
reply = dbus_message_new_error(message, iface, err_msg);
}
out:
os_free(peer_object_path);
os_free(pin);
return reply;
inv_args_clear:
wpa_dbus_dict_entry_clear(&entry);
inv_args:
reply = wpas_dbus_error_invalid_args(message, NULL);
goto out;
}
DBusMessage * wpas_dbus_handler_p2p_invite(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
DBusMessageIter iter_dict;
DBusMessage *reply = NULL;
DBusMessageIter iter;
struct wpa_dbus_dict_entry entry;
char *peer_object_path = NULL;
char *pg_object_path = NULL;
char *iface = NULL;
char *net_id_str = NULL;
u8 peer_addr[ETH_ALEN];
unsigned int group_id = 0;
int persistent = 0;
struct wpa_ssid *ssid;
if (!wpa_dbus_p2p_check_enabled(wpa_s, message, &reply, NULL))
return reply;
dbus_message_iter_init(message, &iter);
if (!wpa_dbus_dict_open_read(&iter, &iter_dict, NULL))
goto err;
while (wpa_dbus_dict_has_dict_entry(&iter_dict)) {
if (!wpa_dbus_dict_get_entry(&iter_dict, &entry))
goto err;
if (!os_strcmp(entry.key, "peer") &&
(entry.type == DBUS_TYPE_OBJECT_PATH)) {
peer_object_path = os_strdup(entry.str_value);
wpa_dbus_dict_entry_clear(&entry);
} else if (!os_strcmp(entry.key, "persistent_group_object") &&
(entry.type == DBUS_TYPE_OBJECT_PATH)) {
pg_object_path = os_strdup(entry.str_value);
persistent = 1;
wpa_dbus_dict_entry_clear(&entry);
} else {
wpa_dbus_dict_entry_clear(&entry);
goto err;
}
}
if (!peer_object_path ||
(parse_peer_object_path(peer_object_path, peer_addr) < 0) ||
(p2p_get_peer_info(wpa_s->global->p2p,
peer_addr, 0, NULL, 0) < 0)) {
goto err;
}
if (persistent) {
/*
* A group ID is defined meaning we want to re-invoke a
* persistant group
*/
iface = wpas_dbus_new_decompose_object_path(pg_object_path, 1,
&net_id_str, NULL);
if (iface == NULL ||
os_strcmp(iface, wpa_s->dbus_new_path) != 0) {
reply = wpas_dbus_error_invalid_args(message,
pg_object_path);
goto out;
}
group_id = strtoul(net_id_str, NULL, 10);
if (errno == EINVAL) {
reply = wpas_dbus_error_invalid_args(
message, pg_object_path);
goto out;
}
/* Get the SSID structure form the persistant group id */
ssid = wpa_config_get_network(wpa_s->conf, group_id);
if (ssid == NULL || ssid->disabled != 2)
goto err;
if (wpas_p2p_invite(wpa_s, peer_addr, ssid, NULL) < 0) {
reply = wpas_dbus_error_unknown_error(
message,
"Failed to reinvoke a persistent group");
goto out;
}
} else {
/*
* No group ID means propose to a peer to join my active group
*/
if (wpas_p2p_invite_group(wpa_s, wpa_s->ifname,
peer_addr, NULL)) {
reply = wpas_dbus_error_unknown_error(
message, "Failed to join to an active group");
goto out;
}
}
out:
os_free(pg_object_path);
os_free(peer_object_path);
return reply;
err:
reply = wpas_dbus_error_invalid_args(message, NULL);
goto out;
}
DBusMessage * wpas_dbus_handler_p2p_prov_disc_req(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
DBusMessageIter iter;
char *peer_object_path = NULL;
char *config_method = NULL;
u8 peer_addr[ETH_ALEN];
dbus_message_iter_init(message, &iter);
dbus_message_iter_get_basic(&iter, &peer_object_path);
if (parse_peer_object_path(peer_object_path, peer_addr) < 0)
return wpas_dbus_error_invalid_args(message, NULL);
dbus_message_iter_next(&iter);
dbus_message_iter_get_basic(&iter, &config_method);
/*
* Validation checks on config_method are being duplicated here
* to be able to return invalid args reply since the error code
* from p2p module are not granular enough (yet).
*/
if (os_strcmp(config_method, "display") &&
os_strcmp(config_method, "keypad") &&
os_strcmp(config_method, "pbc") &&
os_strcmp(config_method, "pushbutton"))
return wpas_dbus_error_invalid_args(message, NULL);
if (wpas_p2p_prov_disc(wpa_s, peer_addr, config_method) < 0)
return wpas_dbus_error_unknown_error(message,
"Failed to send provision discovery request");
return NULL;
}
/*
* P2P Device property accessor methods.
*/
dbus_bool_t wpas_dbus_getter_p2p_device_properties(DBusMessageIter *iter,
DBusError *error,
void *user_data)
{
struct wpa_supplicant *wpa_s = user_data;
DBusMessageIter variant_iter, dict_iter;
DBusMessageIter iter_secdev_dict_entry, iter_secdev_dict_val,
iter_secdev_dict_array;
const char *dev_name;
int num_vendor_extensions = 0;
int i;
const struct wpabuf *vendor_ext[P2P_MAX_WPS_VENDOR_EXT];
if (!wpa_dbus_p2p_check_enabled(wpa_s, NULL, NULL, error))
return FALSE;
if (!dbus_message_iter_open_container(iter, DBUS_TYPE_VARIANT,
"a{sv}", &variant_iter) ||
!wpa_dbus_dict_open_write(&variant_iter, &dict_iter))
goto err_no_mem;
/* DeviceName */
dev_name = wpa_s->conf->device_name;
if (dev_name &&
!wpa_dbus_dict_append_string(&dict_iter, "DeviceName", dev_name))
goto err_no_mem;
/* Primary device type */
if (!wpa_dbus_dict_append_byte_array(&dict_iter, "PrimaryDeviceType",
(char *)wpa_s->conf->device_type,
WPS_DEV_TYPE_LEN))
goto err_no_mem;
/* Secondary device types */
if (wpa_s->conf->num_sec_device_types) {
if (!wpa_dbus_dict_begin_array(&dict_iter,
"SecondaryDeviceTypes",
DBUS_TYPE_ARRAY_AS_STRING
DBUS_TYPE_BYTE_AS_STRING,
&iter_secdev_dict_entry,
&iter_secdev_dict_val,
&iter_secdev_dict_array))
goto err_no_mem;
for (i = 0; i < wpa_s->conf->num_sec_device_types; i++)
wpa_dbus_dict_bin_array_add_element(
&iter_secdev_dict_array,
wpa_s->conf->sec_device_type[i],
WPS_DEV_TYPE_LEN);
if (!wpa_dbus_dict_end_array(&dict_iter,
&iter_secdev_dict_entry,
&iter_secdev_dict_val,
&iter_secdev_dict_array))
goto err_no_mem;
}
/* Vendor Extensions */
for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
if (wpa_s->conf->wps_vendor_ext[i] == NULL)
continue;
vendor_ext[num_vendor_extensions++] =
wpa_s->conf->wps_vendor_ext[i];
}
if (num_vendor_extensions &&
!wpa_dbus_dict_append_wpabuf_array(&dict_iter,
"VendorExtension",
vendor_ext,
num_vendor_extensions))
goto err_no_mem;
/* GO Intent */
if (!wpa_dbus_dict_append_uint32(&dict_iter, "GOIntent",
wpa_s->conf->p2p_go_intent))
goto err_no_mem;
/* Persistant Reconnect */
if (!wpa_dbus_dict_append_bool(&dict_iter, "PersistantReconnect",
wpa_s->conf->persistent_reconnect))
goto err_no_mem;
/* Listen Reg Class */
if (!wpa_dbus_dict_append_uint32(&dict_iter, "ListenRegClass",
wpa_s->conf->p2p_listen_reg_class))
goto err_no_mem;
/* Listen Channel */
if (!wpa_dbus_dict_append_uint32(&dict_iter, "ListenChannel",
wpa_s->conf->p2p_listen_channel))
goto err_no_mem;
/* Oper Reg Class */
if (!wpa_dbus_dict_append_uint32(&dict_iter, "OperRegClass",
wpa_s->conf->p2p_oper_reg_class))
goto err_no_mem;
/* Oper Channel */
if (!wpa_dbus_dict_append_uint32(&dict_iter, "OperChannel",
wpa_s->conf->p2p_oper_channel))
goto err_no_mem;
/* SSID Postfix */
if (wpa_s->conf->p2p_ssid_postfix &&
!wpa_dbus_dict_append_string(&dict_iter, "SsidPostfix",
wpa_s->conf->p2p_ssid_postfix))
goto err_no_mem;
/* Intra Bss */
if (!wpa_dbus_dict_append_bool(&dict_iter, "IntraBss",
wpa_s->conf->p2p_intra_bss))
goto err_no_mem;
/* Group Idle */
if (!wpa_dbus_dict_append_uint32(&dict_iter, "GroupIdle",
wpa_s->conf->p2p_group_idle))
goto err_no_mem;
/* Dissasociation low ack */
if (!wpa_dbus_dict_append_uint32(&dict_iter, "disassoc_low_ack",
wpa_s->conf->disassoc_low_ack))
goto err_no_mem;
if (!wpa_dbus_dict_close_write(&variant_iter, &dict_iter) ||
!dbus_message_iter_close_container(iter, &variant_iter))
goto err_no_mem;
return TRUE;
err_no_mem:
dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, "no memory");
return FALSE;
}
dbus_bool_t wpas_dbus_setter_p2p_device_properties(DBusMessageIter *iter,
DBusError *error,
void *user_data)
{
struct wpa_supplicant *wpa_s = user_data;
DBusMessageIter variant_iter, iter_dict;
struct wpa_dbus_dict_entry entry = {.type = DBUS_TYPE_STRING };
unsigned int i;
if (!wpa_dbus_p2p_check_enabled(wpa_s, NULL, NULL, error))
return FALSE;
dbus_message_iter_recurse(iter, &variant_iter);
if (!wpa_dbus_dict_open_read(&variant_iter, &iter_dict, error))
return FALSE;
while (wpa_dbus_dict_has_dict_entry(&iter_dict)) {
if (!wpa_dbus_dict_get_entry(&iter_dict, &entry)) {
dbus_set_error_const(error, DBUS_ERROR_INVALID_ARGS,
"invalid message format");
return FALSE;
}
if (os_strcmp(entry.key, "DeviceName") == 0) {
char *devname;
if (entry.type != DBUS_TYPE_STRING)
goto error;
devname = os_strdup(entry.str_value);
if (devname == NULL)
goto err_no_mem_clear;
os_free(wpa_s->conf->device_name);
wpa_s->conf->device_name = devname;
wpa_s->conf->changed_parameters |=
CFG_CHANGED_DEVICE_NAME;
} else if (os_strcmp(entry.key, "PrimaryDeviceType") == 0) {
if (entry.type != DBUS_TYPE_ARRAY ||
entry.array_type != DBUS_TYPE_BYTE ||
entry.array_len != WPS_DEV_TYPE_LEN)
goto error;
os_memcpy(wpa_s->conf->device_type,
entry.bytearray_value,
WPS_DEV_TYPE_LEN);
wpa_s->conf->changed_parameters |=
CFG_CHANGED_DEVICE_TYPE;
} else if (os_strcmp(entry.key, "SecondaryDeviceTypes") == 0) {
if (entry.type != DBUS_TYPE_ARRAY ||
entry.array_type != WPAS_DBUS_TYPE_BINARRAY ||
entry.array_len > MAX_SEC_DEVICE_TYPES)
goto error;
for (i = 0; i < entry.array_len; i++)
if (wpabuf_len(entry.binarray_value[i]) !=
WPS_DEV_TYPE_LEN)
goto err_no_mem_clear;
for (i = 0; i < entry.array_len; i++)
os_memcpy(wpa_s->conf->sec_device_type[i],
wpabuf_head(entry.binarray_value[i]),
WPS_DEV_TYPE_LEN);
wpa_s->conf->num_sec_device_types = entry.array_len;
wpa_s->conf->changed_parameters |=
CFG_CHANGED_SEC_DEVICE_TYPE;
} else if (os_strcmp(entry.key, "VendorExtension") == 0) {
if ((entry.type != DBUS_TYPE_ARRAY) ||
(entry.array_type != WPAS_DBUS_TYPE_BINARRAY) ||
(entry.array_len > P2P_MAX_WPS_VENDOR_EXT))
goto error;
wpa_s->conf->changed_parameters |=
CFG_CHANGED_VENDOR_EXTENSION;
for (i = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
wpabuf_free(wpa_s->conf->wps_vendor_ext[i]);
if (i < entry.array_len) {
wpa_s->conf->wps_vendor_ext[i] =
entry.binarray_value[i];
entry.binarray_value[i] = NULL;
} else
wpa_s->conf->wps_vendor_ext[i] = NULL;
}
} else if ((os_strcmp(entry.key, "GOIntent") == 0) &&
(entry.type == DBUS_TYPE_UINT32) &&
(entry.uint32_value <= 15))
wpa_s->conf->p2p_go_intent = entry.uint32_value;
else if ((os_strcmp(entry.key, "PersistantReconnect") == 0) &&
(entry.type == DBUS_TYPE_BOOLEAN))
wpa_s->conf->persistent_reconnect = entry.bool_value;
else if ((os_strcmp(entry.key, "ListenRegClass") == 0) &&
(entry.type == DBUS_TYPE_UINT32)) {
wpa_s->conf->p2p_listen_reg_class = entry.uint32_value;
wpa_s->conf->changed_parameters |=
CFG_CHANGED_P2P_LISTEN_CHANNEL;
} else if ((os_strcmp(entry.key, "ListenChannel") == 0) &&
(entry.type == DBUS_TYPE_UINT32)) {
wpa_s->conf->p2p_listen_channel = entry.uint32_value;
wpa_s->conf->changed_parameters |=
CFG_CHANGED_P2P_LISTEN_CHANNEL;
} else if ((os_strcmp(entry.key, "OperRegClass") == 0) &&
(entry.type == DBUS_TYPE_UINT32)) {
wpa_s->conf->p2p_oper_reg_class = entry.uint32_value;
wpa_s->conf->changed_parameters |=
CFG_CHANGED_P2P_OPER_CHANNEL;
} else if ((os_strcmp(entry.key, "OperChannel") == 0) &&
(entry.type == DBUS_TYPE_UINT32)) {
wpa_s->conf->p2p_oper_channel = entry.uint32_value;
wpa_s->conf->changed_parameters |=
CFG_CHANGED_P2P_OPER_CHANNEL;
} else if (os_strcmp(entry.key, "SsidPostfix") == 0) {
char *postfix;
if (entry.type != DBUS_TYPE_STRING)
goto error;
postfix = os_strdup(entry.str_value);
if (!postfix)
goto err_no_mem_clear;
os_free(wpa_s->conf->p2p_ssid_postfix);
wpa_s->conf->p2p_ssid_postfix = postfix;
wpa_s->conf->changed_parameters |=
CFG_CHANGED_P2P_SSID_POSTFIX;
} else if ((os_strcmp(entry.key, "IntraBss") == 0) &&
(entry.type == DBUS_TYPE_BOOLEAN)) {
wpa_s->conf->p2p_intra_bss = entry.bool_value;
wpa_s->conf->changed_parameters |=
CFG_CHANGED_P2P_INTRA_BSS;
} else if ((os_strcmp(entry.key, "GroupIdle") == 0) &&
(entry.type == DBUS_TYPE_UINT32))
wpa_s->conf->p2p_group_idle = entry.uint32_value;
else if (os_strcmp(entry.key, "disassoc_low_ack") == 0 &&
entry.type == DBUS_TYPE_UINT32)
wpa_s->conf->disassoc_low_ack = entry.uint32_value;
else
goto error;
wpa_dbus_dict_entry_clear(&entry);
}
if (wpa_s->conf->changed_parameters) {
/* Some changed parameters requires to update config*/
wpa_supplicant_update_config(wpa_s);
}
return TRUE;
error:
dbus_set_error_const(error, DBUS_ERROR_INVALID_ARGS,
"invalid message format");
wpa_dbus_dict_entry_clear(&entry);
return FALSE;
err_no_mem_clear:
dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, "no memory");
wpa_dbus_dict_entry_clear(&entry);
return FALSE;
}
dbus_bool_t wpas_dbus_getter_p2p_peers(DBusMessageIter *iter, DBusError *error,
void *user_data)
{
struct wpa_supplicant *wpa_s = user_data;
struct p2p_data *p2p = wpa_s->global->p2p;
int next = 0, i = 0;
int num = 0, out_of_mem = 0;
const u8 *addr;
const struct p2p_peer_info *peer_info = NULL;
dbus_bool_t success = FALSE;
struct dl_list peer_objpath_list;
struct peer_objpath_node {
struct dl_list list;
char path[WPAS_DBUS_OBJECT_PATH_MAX];
} *node, *tmp;
char **peer_obj_paths = NULL;
if (!wpa_dbus_p2p_check_enabled(wpa_s, NULL, NULL, error))
return FALSE;
dl_list_init(&peer_objpath_list);
/* Get the first peer info */
peer_info = p2p_get_peer_found(p2p, NULL, next);
/* Get next and accumulate them */
next = 1;
while (peer_info != NULL) {
node = os_zalloc(sizeof(struct peer_objpath_node));
if (!node) {
out_of_mem = 1;
goto error;
}
addr = peer_info->p2p_device_addr;
os_snprintf(node->path, WPAS_DBUS_OBJECT_PATH_MAX,
"%s/" WPAS_DBUS_NEW_P2P_PEERS_PART
"/" COMPACT_MACSTR,
wpa_s->dbus_new_path, MAC2STR(addr));
dl_list_add_tail(&peer_objpath_list, &node->list);
num++;
peer_info = p2p_get_peer_found(p2p, addr, next);
}
/*
* Now construct the peer object paths in a form suitable for
* array_property_getter helper below.
*/
peer_obj_paths = os_zalloc(num * sizeof(char *));
if (!peer_obj_paths) {
out_of_mem = 1;
goto error;
}
dl_list_for_each_safe(node, tmp, &peer_objpath_list,
struct peer_objpath_node, list)
peer_obj_paths[i++] = node->path;
success = wpas_dbus_simple_array_property_getter(iter,
DBUS_TYPE_OBJECT_PATH,
peer_obj_paths, num,
error);
error:
if (peer_obj_paths)
os_free(peer_obj_paths);
dl_list_for_each_safe(node, tmp, &peer_objpath_list,
struct peer_objpath_node, list) {
dl_list_del(&node->list);
os_free(node);
}
if (out_of_mem)
dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, "no memory");
return success;
}
enum wpas_p2p_role {
WPAS_P2P_ROLE_DEVICE,
WPAS_P2P_ROLE_GO,
WPAS_P2P_ROLE_CLIENT,
};
static enum wpas_p2p_role wpas_get_p2p_role(struct wpa_supplicant *wpa_s)
{
struct wpa_ssid *ssid = wpa_s->current_ssid;
if (!ssid)
return WPAS_P2P_ROLE_DEVICE;
if (wpa_s->wpa_state != WPA_COMPLETED)
return WPAS_P2P_ROLE_DEVICE;
switch (ssid->mode) {
case WPAS_MODE_P2P_GO:
case WPAS_MODE_P2P_GROUP_FORMATION:
return WPAS_P2P_ROLE_GO;
case WPAS_MODE_INFRA:
if (ssid->p2p_group)
return WPAS_P2P_ROLE_CLIENT;
return WPAS_P2P_ROLE_DEVICE;
default:
return WPAS_P2P_ROLE_DEVICE;
}
}
dbus_bool_t wpas_dbus_getter_p2p_role(DBusMessageIter *iter, DBusError *error,
void *user_data)
{
struct wpa_supplicant *wpa_s = user_data;
char *str;
switch (wpas_get_p2p_role(wpa_s)) {
case WPAS_P2P_ROLE_GO:
str = "GO";
break;
case WPAS_P2P_ROLE_CLIENT:
str = "client";
break;
default:
str = "device";
}
return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_STRING, &str,
error);
}
dbus_bool_t wpas_dbus_getter_p2p_group(DBusMessageIter *iter, DBusError *error,
void *user_data)
{
struct wpa_supplicant *wpa_s = user_data;
if (wpa_s->dbus_groupobj_path == NULL)
return FALSE;
return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_OBJECT_PATH,
&wpa_s->dbus_groupobj_path,
error);
}
dbus_bool_t wpas_dbus_getter_p2p_peergo(DBusMessageIter *iter,
DBusError *error, void *user_data)
{
struct wpa_supplicant *wpa_s = user_data;
char go_peer_obj_path[WPAS_DBUS_OBJECT_PATH_MAX], *path;
if (wpas_get_p2p_role(wpa_s) != WPAS_P2P_ROLE_CLIENT)
return FALSE;
os_snprintf(go_peer_obj_path, WPAS_DBUS_OBJECT_PATH_MAX,
"%s/" WPAS_DBUS_NEW_P2P_PEERS_PART "/" COMPACT_MACSTR,
wpa_s->dbus_new_path, MAC2STR(wpa_s->go_dev_addr));
path = go_peer_obj_path;
return wpas_dbus_simple_property_getter(iter, DBUS_TYPE_OBJECT_PATH,
&path, error);
}
/*
* Peer object properties accessor methods
*/
dbus_bool_t wpas_dbus_getter_p2p_peer_properties(DBusMessageIter *iter,
DBusError *error, void *user_data)
{
struct peer_handler_args *peer_args = user_data;
DBusMessageIter variant_iter, dict_iter;
const struct p2p_peer_info *info = NULL;
const struct wpabuf *vendor_extension[P2P_MAX_WPS_VENDOR_EXT];
int i, num;
if (!wpa_dbus_p2p_check_enabled(peer_args->wpa_s, NULL, NULL, error))
return FALSE;
/* get the peer info */
info = p2p_get_peer_found(peer_args->wpa_s->global->p2p,
peer_args->p2p_device_addr, 0);
if (info == NULL) {
dbus_set_error(error, DBUS_ERROR_FAILED, "failed to find peer");
return FALSE;
}
if (!dbus_message_iter_open_container(iter, DBUS_TYPE_VARIANT,
"a{sv}", &variant_iter) ||
!wpa_dbus_dict_open_write(&variant_iter, &dict_iter))
goto err_no_mem;
/* Fill out the dictionary */
if (!wpa_dbus_dict_append_string(&dict_iter, "DeviceName",
info->device_name))
goto err_no_mem;
if (!wpa_dbus_dict_append_byte_array(&dict_iter, "PrimaryDeviceType",
(char *)info->pri_dev_type,
WPS_DEV_TYPE_LEN))
goto err_no_mem;
if (!wpa_dbus_dict_append_uint16(&dict_iter, "config_method",
info->config_methods))
goto err_no_mem;
if (!wpa_dbus_dict_append_int32(&dict_iter, "level",
info->level))
goto err_no_mem;
if (!wpa_dbus_dict_append_byte(&dict_iter, "devicecapability",
info->dev_capab))
goto err_no_mem;
if (!wpa_dbus_dict_append_byte(&dict_iter, "groupcapability",
info->group_capab))
goto err_no_mem;
if (info->wps_sec_dev_type_list_len) {
const u8 *sec_dev_type_list = info->wps_sec_dev_type_list;
int num_sec_dev_types =
info->wps_sec_dev_type_list_len / WPS_DEV_TYPE_LEN;
DBusMessageIter iter_secdev_dict_entry, iter_secdev_dict_val,
iter_secdev_dict_array;
if (num_sec_dev_types) {
if (!wpa_dbus_dict_begin_array(&dict_iter,
"SecondaryDeviceTypes",
DBUS_TYPE_ARRAY_AS_STRING
DBUS_TYPE_BYTE_AS_STRING,
&iter_secdev_dict_entry,
&iter_secdev_dict_val,
&iter_secdev_dict_array))
goto err_no_mem;
for (i = 0; i < num_sec_dev_types; i++) {
wpa_dbus_dict_bin_array_add_element(
&iter_secdev_dict_array,
sec_dev_type_list,
WPS_DEV_TYPE_LEN);
sec_dev_type_list += WPS_DEV_TYPE_LEN;
}
if (!wpa_dbus_dict_end_array(&dict_iter,
&iter_secdev_dict_entry,
&iter_secdev_dict_val,
&iter_secdev_dict_array))
goto err_no_mem;
}
}
/* Add WPS vendor extensions attribute */
for (i = 0, num = 0; i < P2P_MAX_WPS_VENDOR_EXT; i++) {
if (info->wps_vendor_ext[i] == NULL)
continue;
vendor_extension[num] = info->wps_vendor_ext[i];
num++;
}
if (!wpa_dbus_dict_append_wpabuf_array(&dict_iter, "VendorExtension",
vendor_extension, num))
goto err_no_mem;
if (!wpa_dbus_dict_close_write(&variant_iter, &dict_iter) ||
!dbus_message_iter_close_container(iter, &variant_iter))
goto err_no_mem;
return TRUE;
err_no_mem:
dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, "no memory");
return FALSE;
}
dbus_bool_t wpas_dbus_getter_p2p_peer_ies(DBusMessageIter *iter,
DBusError *error, void *user_data)
{
/* struct peer_handler_args *peer_args = user_data; */
dbus_set_error_const(error, DBUS_ERROR_FAILED, "not implemented");
return FALSE;
}
/**
* wpas_dbus_getter_persistent_groups - Get array of peristent group objects
* @iter: Pointer to incoming dbus message iter
* @error: Location to store error on failure
* @user_data: Function specific data
* Returns: TRUE on success, FALSE on failure
*
* Getter for "PersistentGroups" property.
*/
dbus_bool_t wpas_dbus_getter_persistent_groups(DBusMessageIter *iter,
DBusError *error,
void *user_data)
{
struct wpa_supplicant *wpa_s = user_data;
struct wpa_ssid *ssid;
char **paths;
unsigned int i = 0, num = 0;
dbus_bool_t success = FALSE;
if (wpa_s->conf == NULL) {
wpa_printf(MSG_ERROR, "dbus: %s: "
"An error occurred getting persistent groups list",
__func__);
dbus_set_error_const(error, DBUS_ERROR_FAILED, "an error "
"occurred getting persistent groups list");
return FALSE;
}
for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next)
if (network_is_persistent_group(ssid))
num++;
paths = os_zalloc(num * sizeof(char *));
if (!paths) {
dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, "no memory");
return FALSE;
}
/* Loop through configured networks and append object path of each */
for (ssid = wpa_s->conf->ssid; ssid; ssid = ssid->next) {
if (!network_is_persistent_group(ssid))
continue;
paths[i] = os_zalloc(WPAS_DBUS_OBJECT_PATH_MAX);
if (paths[i] == NULL) {
dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY,
"no memory");
goto out;
}
/* Construct the object path for this network. */
os_snprintf(paths[i++], WPAS_DBUS_OBJECT_PATH_MAX,
"%s/" WPAS_DBUS_NEW_PERSISTENT_GROUPS_PART "/%d",
wpa_s->dbus_new_path, ssid->id);
}
success = wpas_dbus_simple_array_property_getter(iter,
DBUS_TYPE_OBJECT_PATH,
paths, num, error);
out:
while (i)
os_free(paths[--i]);
os_free(paths);
return success;
}
/**
* wpas_dbus_getter_persistent_group_properties - Get options for a persistent
* group
* @iter: Pointer to incoming dbus message iter
* @error: Location to store error on failure
* @user_data: Function specific data
* Returns: TRUE on success, FALSE on failure
*
* Getter for "Properties" property of a persistent group.
*/
dbus_bool_t wpas_dbus_getter_persistent_group_properties(DBusMessageIter *iter,
DBusError *error,
void *user_data)
{
struct network_handler_args *net = user_data;
/* Leveraging the fact that persistent group object is still
* represented in same manner as network within.
*/
return wpas_dbus_getter_network_properties(iter, error, net);
}
/**
* wpas_dbus_setter_persistent_group_properties - Get options for a persistent
* group
* @iter: Pointer to incoming dbus message iter
* @error: Location to store error on failure
* @user_data: Function specific data
* Returns: TRUE on success, FALSE on failure
*
* Setter for "Properties" property of a persistent group.
*/
dbus_bool_t wpas_dbus_setter_persistent_group_properties(DBusMessageIter *iter,
DBusError *error,
void *user_data)
{
struct network_handler_args *net = user_data;
struct wpa_ssid *ssid = net->ssid;
DBusMessageIter variant_iter;
/*
* Leveraging the fact that persistent group object is still
* represented in same manner as network within.
*/
dbus_message_iter_recurse(iter, &variant_iter);
return set_network_properties(net->wpa_s, ssid, &variant_iter, error);
}
/**
* wpas_dbus_new_iface_add_persistent_group - Add a new configured
* persistent_group
* @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
* persistent group
*
* Handler function for "AddPersistentGroup" method call of a P2P Device
* interface.
*/
DBusMessage * wpas_dbus_handler_add_persistent_group(
DBusMessage *message, struct wpa_supplicant *wpa_s)
{
DBusMessage *reply = NULL;
DBusMessageIter iter;
struct wpa_ssid *ssid = NULL;
char path_buf[WPAS_DBUS_OBJECT_PATH_MAX], *path = path_buf;
DBusError error;
dbus_message_iter_init(message, &iter);
ssid = wpa_config_add_network(wpa_s->conf);
if (ssid == NULL) {
wpa_printf(MSG_ERROR, "dbus: %s: "
"Cannot add new persistent group", __func__);
reply = wpas_dbus_error_unknown_error(
message,
"wpa_supplicant could not add "
"a persistent group on this interface.");
goto err;
}
/* Mark the ssid as being a persistent group before the notification */
ssid->disabled = 2;
ssid->p2p_persistent_group = 1;
wpas_notify_persistent_group_added(wpa_s, ssid);
wpa_config_set_network_defaults(ssid);
dbus_error_init(&error);
if (!set_network_properties(wpa_s, ssid, &iter, &error)) {
wpa_printf(MSG_DEBUG, "dbus: %s: "
"Control interface could not set persistent group "
"properties", __func__);
reply = wpas_dbus_reply_new_from_error(message, &error,
DBUS_ERROR_INVALID_ARGS,
"Failed to set network "
"properties");
dbus_error_free(&error);
goto err;
}
/* Construct the object path for this network. */
os_snprintf(path, WPAS_DBUS_OBJECT_PATH_MAX,
"%s/" WPAS_DBUS_NEW_PERSISTENT_GROUPS_PART "/%d",
wpa_s->dbus_new_path, ssid->id);
reply = dbus_message_new_method_return(message);
if (reply == NULL) {
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto err;
}
if (!dbus_message_append_args(reply, DBUS_TYPE_OBJECT_PATH, &path,
DBUS_TYPE_INVALID)) {
dbus_message_unref(reply);
reply = dbus_message_new_error(message, DBUS_ERROR_NO_MEMORY,
NULL);
goto err;
}
return reply;
err:
if (ssid) {
wpas_notify_persistent_group_removed(wpa_s, ssid);
wpa_config_remove_network(wpa_s->conf, ssid->id);
}
return reply;
}
/**
* wpas_dbus_handler_remove_persistent_group - Remove a configured persistent
* group
* @message: Pointer to incoming dbus message
* @wpa_s: wpa_supplicant structure for a network interface
* Returns: NULL on success or dbus error on failure
*
* Handler function for "RemovePersistentGroup" method call of a P2P Device
* interface.
*/
DBusMessage * wpas_dbus_handler_remove_persistent_group(
DBusMessage *message, struct wpa_supplicant *wpa_s)
{
DBusMessage *reply = NULL;
const char *op;
char *iface = NULL, *persistent_group_id = NULL;
int id;
struct wpa_ssid *ssid;
dbus_message_get_args(message, NULL, DBUS_TYPE_OBJECT_PATH, &op,
DBUS_TYPE_INVALID);
/*
* Extract the network ID and ensure the network is actually a child of
* this interface.
*/
iface = wpas_dbus_new_decompose_object_path(op, 1,
&persistent_group_id,
NULL);
if (iface == NULL || os_strcmp(iface, wpa_s->dbus_new_path) != 0) {
reply = wpas_dbus_error_invalid_args(message, op);
goto out;
}
id = strtoul(persistent_group_id, NULL, 10);
if (errno == EINVAL) {
reply = wpas_dbus_error_invalid_args(message, op);
goto out;
}
ssid = wpa_config_get_network(wpa_s->conf, id);
if (ssid == NULL) {
reply = wpas_dbus_error_persistent_group_unknown(message);
goto out;
}
wpas_notify_persistent_group_removed(wpa_s, ssid);
if (wpa_config_remove_network(wpa_s->conf, id) < 0) {
wpa_printf(MSG_ERROR, "dbus: %s: "
"error occurred when removing persistent group %d",
__func__, id);
reply = wpas_dbus_error_unknown_error(
message,
"error removing the specified persistent group on "
"this interface.");
goto out;
}
out:
os_free(iface);
os_free(persistent_group_id);
return reply;
}
static void remove_persistent_group(struct wpa_supplicant *wpa_s,
struct wpa_ssid *ssid)
{
wpas_notify_persistent_group_removed(wpa_s, ssid);
if (wpa_config_remove_network(wpa_s->conf, ssid->id) < 0) {
wpa_printf(MSG_ERROR, "dbus: %s: "
"error occurred when removing persistent group %d",
__func__, ssid->id);
return;
}
}
/**
* wpas_dbus_handler_remove_all_persistent_groups - Remove all configured
* persistent groups
* @message: Pointer to incoming dbus message
* @wpa_s: wpa_supplicant structure for a network interface
* Returns: NULL on success or dbus error on failure
*
* Handler function for "RemoveAllPersistentGroups" method call of a
* P2P Device interface.
*/
DBusMessage * wpas_dbus_handler_remove_all_persistent_groups(
DBusMessage *message, struct wpa_supplicant *wpa_s)
{
struct wpa_ssid *ssid, *next;
struct wpa_config *config;
config = wpa_s->conf;
ssid = config->ssid;
while (ssid) {
next = ssid->next;
if (network_is_persistent_group(ssid))
remove_persistent_group(wpa_s, ssid);
ssid = next;
}
return NULL;
}
/*
* Group object properties accessor methods
*/
dbus_bool_t wpas_dbus_getter_p2p_group_members(DBusMessageIter *iter,
DBusError *error,
void *user_data)
{
struct wpa_supplicant *wpa_s = user_data;
struct wpa_ssid *ssid;
unsigned int num_members;
char **paths;
unsigned int i;
void *next = NULL;
const u8 *addr;
dbus_bool_t success = FALSE;
/* Ensure we are a GO */
if (wpa_s->wpa_state != WPA_COMPLETED)
return FALSE;
ssid = wpa_s->conf->ssid;
/* At present WPAS P2P_GO mode only applicable for p2p_go */
if (ssid->mode != WPAS_MODE_P2P_GO &&
ssid->mode != WPAS_MODE_AP &&
ssid->mode != WPAS_MODE_P2P_GROUP_FORMATION)
return FALSE;
num_members = p2p_get_group_num_members(wpa_s->p2p_group);
paths = os_zalloc(num_members * sizeof(char *));
if (!paths)
goto out_of_memory;
i = 0;
while ((addr = p2p_iterate_group_members(wpa_s->p2p_group, &next))) {
paths[i] = os_zalloc(WPAS_DBUS_OBJECT_PATH_MAX);
if (!paths[i])
goto out_of_memory;
os_snprintf(paths[i], WPAS_DBUS_OBJECT_PATH_MAX,
"%s/" WPAS_DBUS_NEW_P2P_GROUPMEMBERS_PART
"/" COMPACT_MACSTR,
wpa_s->dbus_groupobj_path, MAC2STR(addr));
i++;
}
success = wpas_dbus_simple_array_property_getter(iter,
DBUS_TYPE_OBJECT_PATH,
paths, num_members,
error);
for (i = 0; i < num_members; i++)
os_free(paths[i]);
os_free(paths);
return success;
out_of_memory:
dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, "no memory");
if (paths) {
for (i = 0; i < num_members; i++)
os_free(paths[i]);
os_free(paths);
}
return FALSE;
}
dbus_bool_t wpas_dbus_getter_p2p_group_properties(DBusMessageIter *iter,
DBusError *error,
void *user_data)
{
struct wpa_supplicant *wpa_s = user_data;
DBusMessageIter variant_iter, dict_iter;
struct hostapd_data *hapd = wpa_s->ap_iface->bss[0];
const struct wpabuf *vendor_ext[MAX_WPS_VENDOR_EXTENSIONS];
int num_vendor_ext = 0;
int i;
if (!hapd) {
dbus_set_error_const(error, DBUS_ERROR_FAILED,
"internal error");
return FALSE;
}
if (!dbus_message_iter_open_container(iter, DBUS_TYPE_VARIANT,
"a{sv}", &variant_iter) ||
!wpa_dbus_dict_open_write(&variant_iter, &dict_iter))
goto err_no_mem;
/* Parse WPS Vendor Extensions sent in Beacon/Probe Response */
for (i = 0; i < MAX_WPS_VENDOR_EXTENSIONS; i++) {
if (hapd->conf->wps_vendor_ext[i] == NULL)
continue;
vendor_ext[num_vendor_ext++] = hapd->conf->wps_vendor_ext[i];
}
if (!wpa_dbus_dict_append_wpabuf_array(&dict_iter,
"WPSVendorExtensions",
vendor_ext, num_vendor_ext))
goto err_no_mem;
if (!wpa_dbus_dict_close_write(&variant_iter, &dict_iter) ||
!dbus_message_iter_close_container(iter, &variant_iter))
goto err_no_mem;
return TRUE;
err_no_mem:
dbus_set_error_const(error, DBUS_ERROR_NO_MEMORY, "no memory");
return FALSE;
}
dbus_bool_t wpas_dbus_setter_p2p_group_properties(DBusMessageIter *iter,
DBusError *error,
void *user_data)
{
struct wpa_supplicant *wpa_s = user_data;
DBusMessageIter variant_iter, iter_dict;
struct wpa_dbus_dict_entry entry = { .type = DBUS_TYPE_STRING };
unsigned int i;
struct hostapd_data *hapd = wpa_s->ap_iface->bss[0];
if (!hapd) {
dbus_set_error_const(error, DBUS_ERROR_FAILED,
"internal error");
return FALSE;
}
dbus_message_iter_recurse(iter, &variant_iter);
if (!wpa_dbus_dict_open_read(&variant_iter, &iter_dict, error))
return FALSE;
while (wpa_dbus_dict_has_dict_entry(&iter_dict)) {
if (!wpa_dbus_dict_get_entry(&iter_dict, &entry)) {
dbus_set_error_const(error, DBUS_ERROR_INVALID_ARGS,
"invalid message format");
return FALSE;
}
if (os_strcmp(entry.key, "WPSVendorExtensions") == 0) {
if (entry.type != DBUS_TYPE_ARRAY ||
entry.array_type != WPAS_DBUS_TYPE_BINARRAY ||
entry.array_len > MAX_WPS_VENDOR_EXTENSIONS)
goto error;
for (i = 0; i < MAX_WPS_VENDOR_EXTENSIONS; i++) {
if (i < entry.array_len) {
hapd->conf->wps_vendor_ext[i] =
entry.binarray_value[i];
entry.binarray_value[i] = NULL;
} else
hapd->conf->wps_vendor_ext[i] = NULL;
}
hostapd_update_wps(hapd);
} else
goto error;
wpa_dbus_dict_entry_clear(&entry);
}
return TRUE;
error:
wpa_dbus_dict_entry_clear(&entry);
dbus_set_error_const(error, DBUS_ERROR_INVALID_ARGS,
"invalid message format");
return FALSE;
}
DBusMessage * wpas_dbus_handler_p2p_add_service(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
DBusMessageIter iter_dict;
DBusMessage *reply = NULL;
DBusMessageIter iter;
struct wpa_dbus_dict_entry entry;
int upnp = 0;
int bonjour = 0;
char *service = NULL;
struct wpabuf *query = NULL;
struct wpabuf *resp = NULL;
u8 version = 0;
dbus_message_iter_init(message, &iter);
if (!wpa_dbus_dict_open_read(&iter, &iter_dict, NULL))
goto error;
if (wpa_dbus_dict_has_dict_entry(&iter_dict)) {
if (!wpa_dbus_dict_get_entry(&iter_dict, &entry))
goto error;
if (!os_strcmp(entry.key, "service_type") &&
(entry.type == DBUS_TYPE_STRING)) {
if (!os_strcmp(entry.str_value, "upnp"))
upnp = 1;
else if (!os_strcmp(entry.str_value, "bonjour"))
bonjour = 1;
else
goto error_clear;
wpa_dbus_dict_entry_clear(&entry);
}
}
if (upnp == 1) {
while (wpa_dbus_dict_has_dict_entry(&iter_dict)) {
if (!wpa_dbus_dict_get_entry(&iter_dict, &entry))
goto error;
if (!os_strcmp(entry.key, "version") &&
entry.type == DBUS_TYPE_INT32)
version = entry.uint32_value;
else if (!os_strcmp(entry.key, "service") &&
entry.type == DBUS_TYPE_STRING)
service = os_strdup(entry.str_value);
wpa_dbus_dict_entry_clear(&entry);
}
if (version <= 0 || service == NULL)
goto error;
if (wpas_p2p_service_add_upnp(wpa_s, version, service) != 0)
goto error;
os_free(service);
} else if (bonjour == 1) {
while (wpa_dbus_dict_has_dict_entry(&iter_dict)) {
if (!wpa_dbus_dict_get_entry(&iter_dict, &entry))
goto error;
if (!os_strcmp(entry.key, "query")) {
if ((entry.type != DBUS_TYPE_ARRAY) ||
(entry.array_type != DBUS_TYPE_BYTE))
goto error_clear;
query = wpabuf_alloc_copy(
entry.bytearray_value,
entry.array_len);
} else if (!os_strcmp(entry.key, "response")) {
if ((entry.type != DBUS_TYPE_ARRAY) ||
(entry.array_type != DBUS_TYPE_BYTE))
goto error_clear;
resp = wpabuf_alloc_copy(entry.bytearray_value,
entry.array_len);
}
wpa_dbus_dict_entry_clear(&entry);
}
if (query == NULL || resp == NULL)
goto error;
if (wpas_p2p_service_add_bonjour(wpa_s, query, resp) < 0) {
wpabuf_free(query);
wpabuf_free(resp);
goto error;
}
} else
goto error;
return reply;
error_clear:
wpa_dbus_dict_entry_clear(&entry);
error:
return wpas_dbus_error_invalid_args(message, NULL);
}
DBusMessage * wpas_dbus_handler_p2p_delete_service(
DBusMessage *message, struct wpa_supplicant *wpa_s)
{
DBusMessageIter iter_dict;
DBusMessage *reply = NULL;
DBusMessageIter iter;
struct wpa_dbus_dict_entry entry;
int upnp = 0;
int bonjour = 0;
int ret = 0;
char *service = NULL;
struct wpabuf *query = NULL;
u8 version = 0;
dbus_message_iter_init(message, &iter);
if (!wpa_dbus_dict_open_read(&iter, &iter_dict, NULL))
goto error;
if (wpa_dbus_dict_has_dict_entry(&iter_dict)) {
if (!wpa_dbus_dict_get_entry(&iter_dict, &entry))
goto error;
if (!os_strcmp(entry.key, "service_type") &&
(entry.type == DBUS_TYPE_STRING)) {
if (!os_strcmp(entry.str_value, "upnp"))
upnp = 1;
else if (!os_strcmp(entry.str_value, "bonjour"))
bonjour = 1;
else
goto error_clear;
wpa_dbus_dict_entry_clear(&entry);
}
}
if (upnp == 1) {
while (wpa_dbus_dict_has_dict_entry(&iter_dict)) {
if (!wpa_dbus_dict_get_entry(&iter_dict, &entry))
goto error;
if (!os_strcmp(entry.key, "version") &&
entry.type == DBUS_TYPE_INT32)
version = entry.uint32_value;
else if (!os_strcmp(entry.key, "service") &&
entry.type == DBUS_TYPE_STRING)
service = os_strdup(entry.str_value);
else
goto error_clear;
wpa_dbus_dict_entry_clear(&entry);
}
if (version <= 0 || service == NULL)
goto error;
ret = wpas_p2p_service_del_upnp(wpa_s, version, service);
os_free(service);
if (ret != 0)
goto error;
} else if (bonjour == 1) {
while (wpa_dbus_dict_has_dict_entry(&iter_dict)) {
if (!wpa_dbus_dict_get_entry(&iter_dict, &entry))
goto error;
if (!os_strcmp(entry.key, "query")) {
if ((entry.type != DBUS_TYPE_ARRAY) ||
(entry.array_type != DBUS_TYPE_BYTE))
goto error_clear;
query = wpabuf_alloc_copy(
entry.bytearray_value,
entry.array_len);
} else
goto error_clear;
wpa_dbus_dict_entry_clear(&entry);
}
if (query == NULL)
goto error;
ret = wpas_p2p_service_del_bonjour(wpa_s, query);
if (ret != 0)
goto error;
wpabuf_free(query);
} else
goto error;
return reply;
error_clear:
wpa_dbus_dict_entry_clear(&entry);
error:
return wpas_dbus_error_invalid_args(message, NULL);
}
DBusMessage * wpas_dbus_handler_p2p_flush_service(DBusMessage *message,
struct wpa_supplicant *wpa_s)
{
wpas_p2p_service_flush(wpa_s);
return NULL;
}
DBusMessage * wpas_dbus_handler_p2p_service_sd_req(
DBusMessage *message, struct wpa_supplicant *wpa_s)
{
DBusMessageIter iter_dict;
DBusMessage *reply = NULL;
DBusMessageIter iter;
struct wpa_dbus_dict_entry entry;
int upnp = 0;
char *service = NULL;
char *peer_object_path = NULL;
struct wpabuf *tlv = NULL;
u8 version = 0;
u64 ref = 0;
u8 addr[ETH_ALEN];
dbus_message_iter_init(message, &iter);
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 (!os_strcmp(entry.key, "peer_object") &&
entry.type == DBUS_TYPE_OBJECT_PATH) {
peer_object_path = os_strdup(entry.str_value);
} else if (!os_strcmp(entry.key, "service_type") &&
entry.type == DBUS_TYPE_STRING) {
if (!os_strcmp(entry.str_value, "upnp"))
upnp = 1;
else
goto error_clear;
} else if (!os_strcmp(entry.key, "version") &&
entry.type == DBUS_TYPE_INT32) {
version = entry.uint32_value;
} else if (!os_strcmp(entry.key, "service") &&
entry.type == DBUS_TYPE_STRING) {
service = os_strdup(entry.str_value);
} else if (!os_strcmp(entry.key, "tlv")) {
if (entry.type != DBUS_TYPE_ARRAY ||
entry.array_type != DBUS_TYPE_BYTE)
goto error_clear;
tlv = wpabuf_alloc_copy(entry.bytearray_value,
entry.array_len);
} else
goto error_clear;
wpa_dbus_dict_entry_clear(&entry);
}
if (!peer_object_path ||
(parse_peer_object_path(peer_object_path, addr) < 0) ||
(p2p_get_peer_info(wpa_s->global->p2p, addr, 0, NULL, 0) < 0))
goto error;
if (upnp == 1) {
if (version <= 0 || service == NULL)
goto error;
ref = (unsigned long) wpas_p2p_sd_request_upnp(wpa_s, addr,
version,
service);
} else {
if (tlv == NULL)
goto error;
ref = (unsigned long)wpas_p2p_sd_request(wpa_s, addr, tlv);
wpabuf_free(tlv);
}
if (ref != 0) {
reply = dbus_message_new_method_return(message);
dbus_message_append_args(reply, DBUS_TYPE_UINT64,
&ref, DBUS_TYPE_INVALID);
} else {
reply = wpas_dbus_error_unknown_error(
message, "Unable to send SD request");
}
out:
os_free(service);
os_free(peer_object_path);
return reply;
error_clear:
wpa_dbus_dict_entry_clear(&entry);
error:
if (tlv)
wpabuf_free(tlv);
reply = wpas_dbus_error_invalid_args(message, NULL);
goto out;
}
DBusMessage * wpas_dbus_handler_p2p_service_sd_res(
DBusMessage *message, struct wpa_supplicant *wpa_s)
{
DBusMessageIter iter_dict;
DBusMessage *reply = NULL;
DBusMessageIter iter;
struct wpa_dbus_dict_entry entry;
char *peer_object_path = NULL;
struct wpabuf *tlv = NULL;
int freq = 0;
int dlg_tok = 0;
u8 addr[ETH_ALEN];
dbus_message_iter_init(message, &iter);
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 (!os_strcmp(entry.key, "peer_object") &&
entry.type == DBUS_TYPE_OBJECT_PATH) {
peer_object_path = os_strdup(entry.str_value);
} else if (!os_strcmp(entry.key, "frequency") &&
entry.type == DBUS_TYPE_INT32) {
freq = entry.uint32_value;
} else if (!os_strcmp(entry.key, "dialog_token") &&
entry.type == DBUS_TYPE_UINT32) {
dlg_tok = entry.uint32_value;
} else if (!os_strcmp(entry.key, "tlvs")) {
if (entry.type != DBUS_TYPE_ARRAY ||
entry.array_type != DBUS_TYPE_BYTE)
goto error_clear;
tlv = wpabuf_alloc_copy(entry.bytearray_value,
entry.array_len);
} else
goto error_clear;
wpa_dbus_dict_entry_clear(&entry);
}
if (!peer_object_path ||
(parse_peer_object_path(peer_object_path, addr) < 0) ||
(p2p_get_peer_info(wpa_s->global->p2p, addr, 0, NULL, 0) < 0))
goto error;
if (tlv == NULL)
goto error;
wpas_p2p_sd_response(wpa_s, freq, addr, (u8) dlg_tok, tlv);
wpabuf_free(tlv);
out:
os_free(peer_object_path);
return reply;
error_clear:
wpa_dbus_dict_entry_clear(&entry);
error:
reply = wpas_dbus_error_invalid_args(message, NULL);
goto out;
}
DBusMessage * wpas_dbus_handler_p2p_service_sd_cancel_req(
DBusMessage *message, struct wpa_supplicant *wpa_s)
{
DBusMessageIter iter;
u64 req = 0;
dbus_message_iter_init(message, &iter);
dbus_message_iter_get_basic(&iter, &req);
if (req == 0)
goto error;
if (!wpas_p2p_sd_cancel_request(wpa_s, (void *)(unsigned long) req))
goto error;
return NULL;
error:
return wpas_dbus_error_invalid_args(message, NULL);
}
DBusMessage * wpas_dbus_handler_p2p_service_update(
DBusMessage *message, struct wpa_supplicant *wpa_s)
{
wpas_p2p_sd_service_update(wpa_s);
return NULL;
}
DBusMessage * wpas_dbus_handler_p2p_serv_disc_external(
DBusMessage *message, struct wpa_supplicant *wpa_s)
{
DBusMessageIter iter;
int ext = 0;
dbus_message_iter_init(message, &iter);
dbus_message_iter_get_basic(&iter, &ext);
wpa_s->p2p_sd_over_ctrl_iface = ext;
return NULL;
}
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