/**
* wpa_supplicant_dbus_notify_state_change - Send a state change signal
* @wpa_s: %wpa_supplicant network interface data
* @new_state: new state wpa_supplicant is entering
* @old_state: old state wpa_supplicant is leaving
* Returns: 0 on success, -1 on failure
*
* Notify listeners that wpa_supplicant has changed state
*/
void wpa_supplicant_dbus_notify_state_change(struct wpa_supplicant *wpa_s,
enum wpa_states new_state,
enum wpa_states old_state)
{
struct wpas_dbus_priv *iface;
DBusMessage *_signal = NULL;
const char *new_state_str, *old_state_str;
if (wpa_s->dbus_path == NULL)
return; /* Skip signal since D-Bus setup is not yet ready */
/* Do nothing if the control interface is not turned on */
if (wpa_s->global == NULL)
return;
iface = wpa_s->global->dbus;
if (iface == NULL)
return;
/* Only send signal if state really changed */
if (new_state == old_state)
return;
_signal = dbus_message_new_signal(wpa_s->dbus_path,
WPAS_DBUS_IFACE_INTERFACE,
"StateChange");
if (_signal == NULL) {
wpa_printf(MSG_ERROR,
"dbus: wpa_supplicant_dbus_notify_state_change: "
"could not create dbus signal; likely out of "
"memory");
return;
}
new_state_str = wpa_supplicant_state_txt(new_state);
old_state_str = wpa_supplicant_state_txt(old_state);
if (new_state_str == NULL || old_state_str == NULL) {
wpa_printf(MSG_ERROR,
"dbus: wpa_supplicant_dbus_notify_state_change: "
"Could not convert state strings");
goto out;
}
if (!dbus_message_append_args(_signal,
DBUS_TYPE_STRING, &new_state_str,
DBUS_TYPE_STRING, &old_state_str,
DBUS_TYPE_INVALID)) {
wpa_printf(MSG_ERROR,
"dbus: wpa_supplicant_dbus_notify_state_change: "
"Not enough memory to construct state change "
"signal");
goto out;
}
dbus_connection_send(iface->con, _signal, NULL);
out:
dbus_message_unref(_signal);
}
/**
* 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;
}
void wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
struct wpa_bss *selected,
struct wpa_ssid *ssid)
{
if (wpas_wps_scan_pbc_overlap(wpa_s, selected, ssid)) {
wpa_msg(wpa_s, MSG_INFO, WPS_EVENT_OVERLAP
"PBC session overlap");
wpa_supplicant_req_new_scan(wpa_s, 10, 0);
return;
}
/*
* Do not trigger new association unless the BSSID has changed or if
* reassociation is requested. If we are in process of associating with
* the selected BSSID, do not trigger new attempt.
*/
if (wpa_s->reassociate ||
(os_memcmp(selected->bssid, wpa_s->bssid, ETH_ALEN) != 0 &&
((wpa_s->wpa_state != WPA_ASSOCIATING &&
wpa_s->wpa_state != WPA_AUTHENTICATING) ||
os_memcmp(selected->bssid, wpa_s->pending_bssid, ETH_ALEN) !=
0))) {
if (wpa_supplicant_scard_init(wpa_s, ssid)) {
wpa_supplicant_req_new_scan(wpa_s, 10, 0);
return;
}
wpa_msg(wpa_s, MSG_DEBUG, "Request association: "
"reassociate: %d selected: "MACSTR " bssid: " MACSTR
" pending: " MACSTR " wpa_state: %s",
wpa_s->reassociate, MAC2STR(selected->bssid),
MAC2STR(wpa_s->bssid), MAC2STR(wpa_s->pending_bssid),
wpa_supplicant_state_txt(wpa_s->wpa_state));
wpa_supplicant_associate(wpa_s, selected, ssid);
} else {
wpa_printf(MSG_DEBUG, "Already associated with the selected "
"AP");
}
}
static int wpa_supplicant_ctrl_iface_status(struct wpa_supplicant *wpa_s,
const char *params,
char *buf, size_t buflen)
{
char *pos, *end, tmp[30];
int res, verbose, ret;
verbose = os_strcmp(params, "-VERBOSE") == 0;
pos = buf;
end = buf + buflen;
if (wpa_s->wpa_state >= WPA_ASSOCIATED) {
struct wpa_ssid *ssid = wpa_s->current_ssid;
ret = os_snprintf(pos, end - pos, "bssid=" MACSTR "\n",
MAC2STR(wpa_s->bssid));
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
if (ssid) {
u8 *_ssid = ssid->ssid;
size_t ssid_len = ssid->ssid_len;
u8 ssid_buf[MAX_SSID_LEN];
if (ssid_len == 0) {
int _res = wpa_drv_get_ssid(wpa_s, ssid_buf);
if (_res < 0)
ssid_len = 0;
else
ssid_len = _res;
_ssid = ssid_buf;
}
ret = os_snprintf(pos, end - pos, "ssid=%s\nid=%d\n",
wpa_ssid_txt(_ssid, ssid_len),
ssid->id);
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
if (ssid->id_str) {
ret = os_snprintf(pos, end - pos,
"id_str=%s\n",
ssid->id_str);
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
}
}
pos += wpa_sm_get_status(wpa_s->wpa, pos, end - pos, verbose);
}
ret = os_snprintf(pos, end - pos, "wpa_state=%s\n",
wpa_supplicant_state_txt(wpa_s->wpa_state));
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
if (wpa_s->l2 &&
l2_packet_get_ip_addr(wpa_s->l2, tmp, sizeof(tmp)) >= 0) {
ret = os_snprintf(pos, end - pos, "ip_address=%s\n", tmp);
if (ret < 0 || ret >= end - pos)
return pos - buf;
pos += ret;
}
if (wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X ||
wpa_s->key_mgmt == WPA_KEY_MGMT_IEEE8021X_NO_WPA) {
res = eapol_sm_get_status(wpa_s->eapol, pos, end - pos,
verbose);
if (res >= 0)
pos += res;
}
res = rsn_preauth_get_status(wpa_s->wpa, pos, end - pos, verbose);
if (res >= 0)
pos += res;
return pos - buf;
}
/**
* wpa_supplicant_dbus_notify_state_change - Send a state change signal
* @wpa_s: %wpa_supplicant network interface data
* @new_state: new state wpa_supplicant is entering
* @old_state: old state wpa_supplicant is leaving
* Returns: 0 on success, -1 on failure
*
* Notify listeners that wpa_supplicant has changed state
*/
void wpa_supplicant_dbus_notify_state_change(struct wpa_supplicant *wpa_s,
wpa_states new_state,
wpa_states old_state)
{
struct ctrl_iface_dbus_priv *iface;
DBusMessage *_signal = NULL;
const char *path;
const char *new_state_str, *old_state_str;
/* Do nothing if the control interface is not turned on */
if (wpa_s->global == NULL)
return;
iface = wpa_s->global->dbus_ctrl_iface;
if (iface == NULL)
return;
/* Only send signal if state really changed */
if (new_state == old_state)
return;
path = wpa_supplicant_get_dbus_path(wpa_s);
if (path == NULL) {
perror("wpa_supplicant_dbus_notify_state_change[dbus]: "
"interface didn't have a dbus path");
wpa_printf(MSG_ERROR,
"wpa_supplicant_dbus_notify_state_change[dbus]: "
"interface didn't have a dbus path; can't send "
"signal.");
return;
}
_signal = dbus_message_new_signal(path, WPAS_DBUS_IFACE_INTERFACE,
"StateChange");
if (_signal == NULL) {
perror("wpa_supplicant_dbus_notify_state_change[dbus]: "
"couldn't create dbus signal; likely out of memory");
wpa_printf(MSG_ERROR,
"wpa_supplicant_dbus_notify_state_change[dbus]: "
"couldn't create dbus signal; likely out of "
"memory.");
return;
}
new_state_str = wpa_supplicant_state_txt(new_state);
old_state_str = wpa_supplicant_state_txt(old_state);
if (new_state_str == NULL || old_state_str == NULL) {
perror("wpa_supplicant_dbus_notify_state_change[dbus]: "
"couldn't convert state strings");
wpa_printf(MSG_ERROR,
"wpa_supplicant_dbus_notify_state_change[dbus]: "
"couldn't convert state strings.");
goto out;
}
if (!dbus_message_append_args(_signal,
DBUS_TYPE_STRING, &new_state_str,
DBUS_TYPE_STRING, &old_state_str,
DBUS_TYPE_INVALID)) {
perror("wpa_supplicant_dbus_notify_state_change[dbus]: "
"not enough memory to construct state change signal.");
wpa_printf(MSG_ERROR,
"wpa_supplicant_dbus_notify_state_change[dbus]: "
"not enough memory to construct state change "
"signal.");
goto out;
}
dbus_connection_send(iface->con, _signal, NULL);
out:
dbus_message_unref(_signal);
}
