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GAS server: Remove incomplete remote ANQP processing

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Some of the remote ANQP server concepts were introduces into gas_serv.c,
but these were not completed. Remote the unused implementation for now.
It can be added back if support for remote ANQP server is added at some
point.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
This commit is contained in:
Jouni Malinen 2014-03-13 21:12:39 +02:00 committed by Jouni Malinen
parent d61ed3ac3c
commit d0bf06f2d9
2 changed files with 21 additions and 180 deletions
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189
src/ap/gas_serv.c
View file

@ -71,7 +71,6 @@ gas_dialog_create(struct hostapd_data *hapd, const u8 *addr, u8 dialog_token)
continue;
dia = &sta->gas_dialog[i];
dia->valid = 1;
dia->index = i;
dia->dialog_token = dialog_token;
sta->gas_dialog_next = (++i == GAS_DIALOG_MAX) ? 0 : i;
return dia;
@ -744,40 +743,21 @@ gas_serv_build_gas_resp_payload(struct hostapd_data *hapd,
}
static void gas_serv_clear_cached_ies(void *eloop_data, void *user_ctx)
{
struct gas_dialog_info *dia = eloop_data;
wpa_printf(MSG_DEBUG, "GAS: Timeout triggered, clearing dialog for "
"dialog token %d", dia->dialog_token);
gas_serv_dialog_clear(dia);
}
struct anqp_query_info {
unsigned int request;
unsigned int remote_request;
const u8 *home_realm_query;
size_t home_realm_query_len;
const u8 *icon_name;
size_t icon_name_len;
u16 remote_delay;
};
static void set_anqp_req(unsigned int bit, const char *name, int local,
unsigned int remote, u16 remote_delay,
struct anqp_query_info *qi)
{
qi->request |= bit;
if (local) {
wpa_printf(MSG_DEBUG, "ANQP: %s (local)", name);
} else if (bit & remote) {
wpa_printf(MSG_DEBUG, "ANQP: %s (remote)", name);
qi->remote_request |= bit;
if (remote_delay > qi->remote_delay)
qi->remote_delay = remote_delay;
} else {
wpa_printf(MSG_DEBUG, "ANQP: %s not available", name);
}
@ -789,43 +769,38 @@ static void rx_anqp_query_list_id(struct hostapd_data *hapd, u16 info_id,
{
switch (info_id) {
case ANQP_CAPABILITY_LIST:
set_anqp_req(ANQP_REQ_CAPABILITY_LIST, "Capability List", 1, 0,
0, qi);
set_anqp_req(ANQP_REQ_CAPABILITY_LIST, "Capability List", 1,
qi);
break;
case ANQP_VENUE_NAME:
set_anqp_req(ANQP_REQ_VENUE_NAME, "Venue Name",
hapd->conf->venue_name != NULL, 0, 0, qi);
hapd->conf->venue_name != NULL, qi);
break;
case ANQP_NETWORK_AUTH_TYPE:
set_anqp_req(ANQP_REQ_NETWORK_AUTH_TYPE, "Network Auth Type",
hapd->conf->network_auth_type != NULL,
0, 0, qi);
hapd->conf->network_auth_type != NULL, qi);
break;
case ANQP_ROAMING_CONSORTIUM:
set_anqp_req(ANQP_REQ_ROAMING_CONSORTIUM, "Roaming Consortium",
hapd->conf->roaming_consortium != NULL, 0, 0, qi);
hapd->conf->roaming_consortium != NULL, qi);
break;
case ANQP_IP_ADDR_TYPE_AVAILABILITY:
set_anqp_req(ANQP_REQ_IP_ADDR_TYPE_AVAILABILITY,
"IP Addr Type Availability",
hapd->conf->ipaddr_type_configured,
0, 0, qi);
hapd->conf->ipaddr_type_configured, qi);
break;
case ANQP_NAI_REALM:
set_anqp_req(ANQP_REQ_NAI_REALM, "NAI Realm",
hapd->conf->nai_realm_data != NULL,
0, 0, qi);
hapd->conf->nai_realm_data != NULL, qi);
break;
case ANQP_3GPP_CELLULAR_NETWORK:
set_anqp_req(ANQP_REQ_3GPP_CELLULAR_NETWORK,
"3GPP Cellular Network",
hapd->conf->anqp_3gpp_cell_net != NULL,
0, 0, qi);
hapd->conf->anqp_3gpp_cell_net != NULL, qi);
break;
case ANQP_DOMAIN_NAME:
set_anqp_req(ANQP_REQ_DOMAIN_NAME, "Domain Name",
hapd->conf->domain_name != NULL,
0, 0, qi);
hapd->conf->domain_name != NULL, qi);
break;
default:
wpa_printf(MSG_DEBUG, "ANQP: Unsupported Info Id %u",
@ -857,33 +832,30 @@ static void rx_anqp_hs_query_list(struct hostapd_data *hapd, u8 subtype,
switch (subtype) {
case HS20_STYPE_CAPABILITY_LIST:
set_anqp_req(ANQP_REQ_HS_CAPABILITY_LIST, "HS Capability List",
1, 0, 0, qi);
1, qi);
break;
case HS20_STYPE_OPERATOR_FRIENDLY_NAME:
set_anqp_req(ANQP_REQ_OPERATOR_FRIENDLY_NAME,
"Operator Friendly Name",
hapd->conf->hs20_oper_friendly_name != NULL,
0, 0, qi);
hapd->conf->hs20_oper_friendly_name != NULL, qi);
break;
case HS20_STYPE_WAN_METRICS:
set_anqp_req(ANQP_REQ_WAN_METRICS, "WAN Metrics",
hapd->conf->hs20_wan_metrics != NULL,
0, 0, qi);
hapd->conf->hs20_wan_metrics != NULL, qi);
break;
case HS20_STYPE_CONNECTION_CAPABILITY:
set_anqp_req(ANQP_REQ_CONNECTION_CAPABILITY,
"Connection Capability",
hapd->conf->hs20_connection_capability != NULL,
0, 0, qi);
qi);
break;
case HS20_STYPE_OPERATING_CLASS:
set_anqp_req(ANQP_REQ_OPERATING_CLASS, "Operating Class",
hapd->conf->hs20_operating_class != NULL,
0, 0, qi);
hapd->conf->hs20_operating_class != NULL, qi);
break;
case HS20_STYPE_OSU_PROVIDERS_LIST:
set_anqp_req(ANQP_REQ_OSU_PROVIDERS_LIST, "OSU Providers list",
hapd->conf->hs20_osu_providers_count, 0, 0, qi);
hapd->conf->hs20_osu_providers_count, qi);
break;
default:
wpa_printf(MSG_DEBUG, "ANQP: Unsupported HS 2.0 subtype %u",
@ -1150,97 +1122,6 @@ static void gas_serv_rx_gas_initial_req(struct hostapd_data *hapd,
}
void gas_serv_tx_gas_response(struct hostapd_data *hapd, const u8 *dst,
struct gas_dialog_info *dialog)
{
struct wpabuf *buf, *tx_buf;
u8 dialog_token = dialog->dialog_token;
size_t frag_len;
if (dialog->sd_resp == NULL) {
buf = gas_serv_build_gas_resp_payload(hapd,
dialog->all_requested,
dialog, NULL, 0, NULL, 0);
wpa_hexdump_buf(MSG_MSGDUMP, "ANQP: Generated ANQP responses",
buf);
if (!buf)
goto tx_gas_response_done;
dialog->sd_resp = buf;
dialog->sd_resp_pos = 0;
}
frag_len = wpabuf_len(dialog->sd_resp) - dialog->sd_resp_pos;
if (frag_len > hapd->gas_frag_limit || dialog->comeback_delay ||
hapd->conf->gas_comeback_delay) {
u16 comeback_delay_tus = dialog->comeback_delay +
GAS_SERV_COMEBACK_DELAY_FUDGE;
u32 comeback_delay_secs, comeback_delay_usecs;
if (hapd->conf->gas_comeback_delay) {
/* Testing - allow overriding of the delay value */
comeback_delay_tus = hapd->conf->gas_comeback_delay;
}
wpa_printf(MSG_DEBUG, "GAS: Response frag_len %u (frag limit "
"%u) and comeback delay %u, "
"requesting comebacks", (unsigned int) frag_len,
(unsigned int) hapd->gas_frag_limit,
dialog->comeback_delay);
tx_buf = gas_anqp_build_initial_resp_buf(dialog_token,
WLAN_STATUS_SUCCESS,
comeback_delay_tus,
NULL);
if (tx_buf) {
wpa_msg(hapd->msg_ctx, MSG_DEBUG,
"GAS: Tx GAS Initial Resp (comeback = 10TU)");
if (dialog->prot)
convert_to_protected_dual(tx_buf);
hostapd_drv_send_action(hapd, hapd->iface->freq, 0,
dst,
wpabuf_head(tx_buf),
wpabuf_len(tx_buf));
}
wpabuf_free(tx_buf);
/* start a timer of 1.5 * comeback-delay */
comeback_delay_tus = comeback_delay_tus +
(comeback_delay_tus / 2);
comeback_delay_secs = (comeback_delay_tus * 1024) / 1000000;
comeback_delay_usecs = (comeback_delay_tus * 1024) -
(comeback_delay_secs * 1000000);
eloop_register_timeout(comeback_delay_secs,
comeback_delay_usecs,
gas_serv_clear_cached_ies, dialog,
NULL);
goto tx_gas_response_done;
}
buf = wpabuf_alloc_copy(wpabuf_head_u8(dialog->sd_resp) +
dialog->sd_resp_pos, frag_len);
if (buf == NULL) {
wpa_msg(hapd->msg_ctx, MSG_DEBUG, "GAS: Buffer allocation "
"failed");
goto tx_gas_response_done;
}
tx_buf = gas_anqp_build_initial_resp_buf(dialog_token,
WLAN_STATUS_SUCCESS, 0, buf);
wpabuf_free(buf);
if (tx_buf == NULL)
goto tx_gas_response_done;
wpa_msg(hapd->msg_ctx, MSG_DEBUG, "GAS: Tx GAS Initial "
"Response (frag_id %d frag_len %d)",
dialog->sd_frag_id, (int) frag_len);
dialog->sd_frag_id++;
if (dialog->prot)
convert_to_protected_dual(tx_buf);
hostapd_drv_send_action(hapd, hapd->iface->freq, 0, dst,
wpabuf_head(tx_buf), wpabuf_len(tx_buf));
wpabuf_free(tx_buf);
tx_gas_response_done:
gas_serv_clear_cached_ies(dialog, NULL);
}
static void gas_serv_rx_gas_comeback_req(struct hostapd_data *hapd,
const u8 *sa,
const u8 *data, size_t len, int prot)
@ -1274,33 +1155,6 @@ static void gas_serv_rx_gas_comeback_req(struct hostapd_data *hapd,
goto send_resp;
}
if (dialog->sd_resp == NULL) {
wpa_printf(MSG_DEBUG, "GAS: Remote request 0x%x received 0x%x",
dialog->requested, dialog->received);
if ((dialog->requested & dialog->received) !=
dialog->requested) {
wpa_printf(MSG_DEBUG, "GAS: Did not receive response "
"from remote processing");
gas_serv_dialog_clear(dialog);
tx_buf = gas_anqp_build_comeback_resp_buf(
dialog_token,
WLAN_STATUS_GAS_RESP_NOT_RECEIVED, 0, 0, 0,
NULL);
if (tx_buf == NULL)
return;
goto send_resp;
}
buf = gas_serv_build_gas_resp_payload(hapd,
dialog->all_requested,
dialog, NULL, 0, NULL, 0);
wpa_hexdump_buf(MSG_MSGDUMP, "ANQP: Generated ANQP responses",
buf);
if (!buf)
goto rx_gas_comeback_req_done;
dialog->sd_resp = buf;
dialog->sd_resp_pos = 0;
}
frag_len = wpabuf_len(dialog->sd_resp) - dialog->sd_resp_pos;
if (frag_len > hapd->gas_frag_limit) {
frag_len = hapd->gas_frag_limit;
@ -1313,15 +1167,18 @@ static void gas_serv_rx_gas_comeback_req(struct hostapd_data *hapd,
if (buf == NULL) {
wpa_msg(hapd->msg_ctx, MSG_DEBUG, "GAS: Failed to allocate "
"buffer");
goto rx_gas_comeback_req_done;
gas_serv_dialog_clear(dialog);
return;
}
tx_buf = gas_anqp_build_comeback_resp_buf(dialog_token,
WLAN_STATUS_SUCCESS,
dialog->sd_frag_id,
more, 0, buf);
wpabuf_free(buf);
if (tx_buf == NULL)
goto rx_gas_comeback_req_done;
if (tx_buf == NULL) {
gas_serv_dialog_clear(dialog);
return;
}
wpa_msg(hapd->msg_ctx, MSG_DEBUG, "GAS: Tx GAS Comeback Response "
"(frag_id %d more=%d frag_len=%d)",
dialog->sd_frag_id, more, (int) frag_len);
@ -1346,10 +1203,6 @@ send_resp:
hostapd_drv_send_action(hapd, hapd->iface->freq, 0, sa,
wpabuf_head(tx_buf), wpabuf_len(tx_buf));
wpabuf_free(tx_buf);
return;
rx_gas_comeback_req_done:
gas_serv_clear_cached_ies(dialog, NULL);
}

12
src/ap/gas_serv.h
View file

@ -42,29 +42,17 @@
#define ANQP_REQ_ICON_REQUEST \
(0x10000 << HS20_STYPE_ICON_REQUEST)
/* To account for latencies between hostapd and external ANQP processor */
#define GAS_SERV_COMEBACK_DELAY_FUDGE 10
#define GAS_SERV_MIN_COMEBACK_DELAY 100 /* in TU */
struct gas_dialog_info {
u8 valid;
u8 index;
struct wpabuf *sd_resp; /* Fragmented response */
u8 dialog_token;
size_t sd_resp_pos; /* Offset in sd_resp */
u8 sd_frag_id;
u16 comeback_delay;
int prot; /* whether Protected Dual of Public Action frame is used */
unsigned int requested;
unsigned int received;
unsigned int all_requested;
};
struct hostapd_data;
void gas_serv_tx_gas_response(struct hostapd_data *hapd, const u8 *dst,
struct gas_dialog_info *dialog);
struct gas_dialog_info *
gas_serv_dialog_find(struct hostapd_data *hapd, const u8 *addr,
u8 dialog_token);