static void gas_serv_req_local_processing(struct hostapd_data *hapd,
const u8 *sa, u8 dialog_token,
struct anqp_query_info *qi)
{
struct wpabuf *buf, *tx_buf;
buf = gas_serv_build_gas_resp_payload(hapd, qi->request, NULL,
qi->home_realm_query,
qi->home_realm_query_len);
wpa_hexdump_buf(MSG_MSGDUMP, "ANQP: Locally generated ANQP responses",
buf);
if (!buf)
return;
if (wpabuf_len(buf) > hapd->gas_frag_limit ||
hapd->conf->gas_comeback_delay) {
struct gas_dialog_info *di;
u16 comeback_delay = 1;
if (hapd->conf->gas_comeback_delay) {
/* Testing - allow overriding of the delay value */
comeback_delay = hapd->conf->gas_comeback_delay;
}
wpa_printf(MSG_DEBUG, "ANQP: Too long response to fit in "
"initial response - use GAS comeback");
di = gas_dialog_create(hapd, sa, dialog_token);
if (!di) {
wpa_printf(MSG_INFO, "ANQP: Could not create dialog "
"for " MACSTR " (dialog token %u)",
MAC2STR(sa), dialog_token);
wpabuf_free(buf);
return;
}
di->sd_resp = buf;
di->sd_resp_pos = 0;
tx_buf = gas_anqp_build_initial_resp_buf(
dialog_token, WLAN_STATUS_SUCCESS, comeback_delay,
NULL);
} else {
wpa_printf(MSG_DEBUG, "ANQP: Initial response (no comeback)");
tx_buf = gas_anqp_build_initial_resp_buf(
dialog_token, WLAN_STATUS_SUCCESS, 0, buf);
wpabuf_free(buf);
}
if (!tx_buf)
return;
hostapd_drv_send_action(hapd, hapd->iface->freq, 0, sa,
wpabuf_head(tx_buf), wpabuf_len(tx_buf));
wpabuf_free(tx_buf);
}
static void gas_serv_req_remote_processing(struct hostapd_data *hapd,
const u8 *sa, u8 dialog_token,
struct anqp_query_info *qi)
{
struct gas_dialog_info *di;
struct wpabuf *tx_buf = NULL;
di = gas_dialog_create(hapd, sa, dialog_token);
if (!di) {
wpa_msg(hapd->msg_ctx, MSG_ERROR,
"GAS: Could not create dialog for " MACSTR
" (dialog token %u) ", MAC2STR(sa), dialog_token);
return;
}
di->requested = qi->remote_request;
di->received = 0;
di->all_requested = qi->request;
/* send the request to external agent */
if (gas_serv_get_info(hapd, qi->remote_request, qi->param,
qi->param_arg, sa, dialog_token) < 0) {
gas_serv_dialog_clear(di);
tx_buf = gas_anqp_build_initial_resp_buf(
dialog_token, WLAN_STATUS_ADV_SRV_UNREACHABLE, 0,
NULL);
} else if (qi->remote_delay >= GAS_SERV_MIN_COMEBACK_DELAY) {
di->comeback_delay = qi->remote_delay;
wpa_printf(MSG_DEBUG, "GAS: Tx GAS Initial Resp (comeback = "
"%d TU)",
qi->remote_delay + GAS_SERV_COMEBACK_DELAY_FUDGE);
tx_buf = gas_anqp_build_initial_resp_buf(
dialog_token, WLAN_STATUS_SUCCESS,
qi->remote_delay + GAS_SERV_COMEBACK_DELAY_FUDGE,
NULL);
}
if (!tx_buf)
return;
hostapd_drv_send_action(hapd, hapd->iface->freq, 0, sa,
wpabuf_head(tx_buf), wpabuf_len(tx_buf));
wpabuf_free(tx_buf);
}
static void gas_serv_req_local_processing(struct hostapd_data *hapd,
const u8 *sa, u8 dialog_token,
struct anqp_query_info *qi, int prot,
int std_addr3)
{
struct wpabuf *buf, *tx_buf;
buf = gas_serv_build_gas_resp_payload(hapd, qi->request,
qi->home_realm_query,
qi->home_realm_query_len,
qi->icon_name, qi->icon_name_len,
qi->extra_req, qi->num_extra_req);
wpa_hexdump_buf(MSG_MSGDUMP, "ANQP: Locally generated ANQP responses",
buf);
if (!buf)
return;
#ifdef CONFIG_P2P
if (wpabuf_len(buf) == 0 && qi->p2p_sd) {
wpa_printf(MSG_DEBUG,
"ANQP: Do not send response to P2P SD from generic GAS service (P2P SD implementation will process this)");
wpabuf_free(buf);
return;
}
#endif /* CONFIG_P2P */
if (wpabuf_len(buf) > hapd->gas_frag_limit ||
hapd->conf->gas_comeback_delay) {
struct gas_dialog_info *di;
u16 comeback_delay = 1;
if (hapd->conf->gas_comeback_delay) {
/* Testing - allow overriding of the delay value */
comeback_delay = hapd->conf->gas_comeback_delay;
}
wpa_printf(MSG_DEBUG, "ANQP: Too long response to fit in "
"initial response - use GAS comeback");
di = gas_dialog_create(hapd, sa, dialog_token);
if (!di) {
wpa_printf(MSG_INFO, "ANQP: Could not create dialog "
"for " MACSTR " (dialog token %u)",
MAC2STR(sa), dialog_token);
wpabuf_free(buf);
tx_buf = gas_anqp_build_initial_resp_buf(
dialog_token, WLAN_STATUS_UNSPECIFIED_FAILURE,
0, NULL);
} else {
di->prot = prot;
di->sd_resp = buf;
di->sd_resp_pos = 0;
tx_buf = gas_anqp_build_initial_resp_buf(
dialog_token, WLAN_STATUS_SUCCESS,
comeback_delay, NULL);
}
} else {
wpa_printf(MSG_DEBUG, "ANQP: Initial response (no comeback)");
tx_buf = gas_anqp_build_initial_resp_buf(
dialog_token, WLAN_STATUS_SUCCESS, 0, buf);
wpabuf_free(buf);
}
if (!tx_buf)
return;
if (prot)
convert_to_protected_dual(tx_buf);
if (std_addr3)
hostapd_drv_send_action(hapd, hapd->iface->freq, 0, sa,
wpabuf_head(tx_buf),
wpabuf_len(tx_buf));
else
hostapd_drv_send_action_addr3_ap(hapd, hapd->iface->freq, 0, sa,
wpabuf_head(tx_buf),
wpabuf_len(tx_buf));
wpabuf_free(tx_buf);
}
