Exemplo n.º 1
0
/**
 * gas_query_req - Request a GAS query
 * @gas: GAS query data from gas_query_init()
 * @dst: Destination MAC address for the query
 * @freq: Frequency (in MHz) for the channel on which to send the query
 * @req: GAS query payload (to be freed by gas_query module in case of success
 *	return)
 * @cb: Callback function for reporting GAS query result and response
 * @ctx: Context pointer to use with the @cb call
 * Returns: dialog token (>= 0) on success or -1 on failure
 */
int gas_query_req(struct gas_query *gas, const u8 *dst, int freq,
		  struct wpabuf *req,
		  void (*cb)(void *ctx, const u8 *dst, u8 dialog_token,
			     enum gas_query_result result,
			     const struct wpabuf *adv_proto,
			     const struct wpabuf *resp, u16 status_code),
		  void *ctx)
{
	struct gas_query_pending *query;
	int dialog_token;
	static int next_start = 0;

	if (wpabuf_len(req) < 3)
		return -1;

	for (dialog_token = 0; dialog_token < 256; dialog_token++) {
		if (gas_query_dialog_token_available(
			    gas, dst, (next_start + dialog_token) % 256))
			break;
	}
	if (dialog_token == 256)
		return -1; /* Too many pending queries */
	dialog_token = (next_start + dialog_token) % 256;
	next_start = (dialog_token + 1) % 256;

	query = os_zalloc(sizeof(*query));
	if (query == NULL)
		return -1;

	query->gas = gas;
	os_memcpy(query->addr, dst, ETH_ALEN);
	query->dialog_token = dialog_token;
	query->freq = freq;
	query->cb = cb;
	query->ctx = ctx;
	query->req = req;
	dl_list_add(&gas->pending, &query->list);

	*(wpabuf_mhead_u8(req) + 2) = dialog_token;

	wpa_msg(gas->wpa_s, MSG_INFO, GAS_QUERY_START "addr=" MACSTR
		" dialog_token=%u freq=%d",
		MAC2STR(query->addr), query->dialog_token, query->freq);

	if (radio_add_work(gas->wpa_s, freq, "gas-query", 0, gas_query_start_cb,
			   query) < 0) {
		gas_query_free(query, 1);
		return -1;
	}

	return dialog_token;
}
Exemplo n.º 2
0
/**
 * gas_query_req - Request a GAS query
 * @gas: GAS query data from gas_query_init()
 * @dst: Destination MAC address for the query
 * @freq: Frequency (in MHz) for the channel on which to send the query
 * @req: GAS query payload (to be freed by gas_query module in case of success
 *	return)
 * @cb: Callback function for reporting GAS query result and response
 * @ctx: Context pointer to use with the @cb call
 * Returns: dialog token (>= 0) on success or -1 on failure
 */
int gas_query_req(struct gas_query *gas, const u8 *dst, int freq,
		  struct wpabuf *req,
		  void (*cb)(void *ctx, const u8 *dst, u8 dialog_token,
			     enum gas_query_result result,
			     const struct wpabuf *adv_proto,
			     const struct wpabuf *resp, u16 status_code),
		  void *ctx)
{
	struct gas_query_pending *query;
	int dialog_token;

	if (wpabuf_len(req) < 3)
		return -1;

	dialog_token = gas_query_new_dialog_token(gas, dst);
	if (dialog_token < 0)
		return -1;

	query = os_zalloc(sizeof(*query));
	if (query == NULL)
		return -1;

	query->gas = gas;
	os_memcpy(query->addr, dst, ETH_ALEN);
	query->dialog_token = dialog_token;
	query->freq = freq;
	query->cb = cb;
	query->ctx = ctx;
	query->req = req;
	dl_list_add(&gas->pending, &query->list);

	*(wpabuf_mhead_u8(req) + 2) = dialog_token;

	wpa_msg(gas->wpa_s, MSG_INFO, GAS_QUERY_START "addr=" MACSTR
		" dialog_token=%u freq=%d",
		MAC2STR(query->addr), query->dialog_token, query->freq);

	if (radio_add_work(gas->wpa_s, freq, "gas-query", 0, gas_query_start_cb,
			   query) < 0) {
		query->req = NULL; /* caller will free this in error case */
		gas_query_free(query, 1);
		return -1;
	}

	return dialog_token;
}
void sme_authenticate(struct wpa_supplicant *wpa_s,
		      struct wpa_bss *bss, struct wpa_ssid *ssid)
{
	struct wpa_connect_work *cwork;

	if (bss == NULL || ssid == NULL)
		return;
	if (wpa_s->connect_work) {
		wpa_dbg(wpa_s, MSG_DEBUG, "SME: Reject sme_authenticate() call since connect_work exist");
		return;
	}

	if (radio_work_pending(wpa_s, "sme-connect")) {
		/*
		 * The previous sme-connect work might no longer be valid due to
		 * the fact that the BSS list was updated. In addition, it makes
		 * sense to adhere to the 'newer' decision.
		 */
		wpa_dbg(wpa_s, MSG_DEBUG,
			"SME: Remove previous pending sme-connect");
		radio_remove_works(wpa_s, "sme-connect", 0, 1);
	}

	cwork = os_zalloc(sizeof(*cwork));
	if (cwork == NULL)
		return;
	cwork->bss = bss;
	cwork->ssid = ssid;
	cwork->sme = 1;

#ifdef CONFIG_SAE
	wpa_s->sme.sae.state = SAE_NOTHING;
	wpa_s->sme.sae.send_confirm = 0;
	wpa_s->sme.sae_group_index = 0;
#endif /* CONFIG_SAE */

	if (radio_add_work(wpa_s, bss->freq, "sme-connect", 1,
			   sme_auth_start_cb, cwork) < 0)
		wpas_connect_work_free(cwork);
}
Exemplo n.º 4
0
/**
 * wpa_supplicant_trigger_scan - Request driver to start a scan
 * @wpa_s: Pointer to wpa_supplicant data
 * @params: Scan parameters
 * Returns: 0 on success, -1 on failure
 */
int wpa_supplicant_trigger_scan(struct wpa_supplicant *wpa_s,
				struct wpa_driver_scan_params *params)
{
	struct wpa_driver_scan_params *ctx;

	if (wpa_s->scan_work) {
		wpa_dbg(wpa_s, MSG_INFO, "Reject scan trigger since one is already pending");
		return -1;
	}

	ctx = wpa_scan_clone_params(params);
	if (ctx == NULL)
		return -1;

	if (radio_add_work(wpa_s, 0, "scan", 0, wpas_trigger_scan_cb, ctx) < 0)
	{
		wpa_scan_free_params(ctx);
		return -1;
	}

	return 0;
}