hostap/wpa_supplicant/gas_query.h
Jouni Malinen 0c5edededa DPP: Fix config exchange with gas_rand_mac_addr
Do not use a random MAC address for the GAS exchange that is used as
part of the DPP protocol exchange since that would break DPP.
Configurator expects the same MAC address to be used for DPP
Authentication exchange and DPP Configuration exchange (GAS).

Since the DPP Authentication exchange has already used the MAC address
configured on the interface, use of a random address for the GAS
exchange would not provide any additional privacy protection. If a
random MAC address needs to be used for this type of an exchange, that
random address would need to be first configured on the interface before
starting DPP exchange.

This does not change GAS query behavior for any other use case, i.e.,
the gas_rand_mac_addr configuration continues to apply to all the
Interworking/Hotspot 2.0 uses.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
2020-04-22 17:09:01 +03:00

60 lines
1.5 KiB
C

/*
* Generic advertisement service (GAS) query
* Copyright (c) 2009, Atheros Communications
* Copyright (c) 2011, Qualcomm Atheros
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
*/
#ifndef GAS_QUERY_H
#define GAS_QUERY_H
struct gas_query;
#ifdef CONFIG_GAS
struct gas_query * gas_query_init(struct wpa_supplicant *wpa_s);
void gas_query_deinit(struct gas_query *gas);
int gas_query_rx(struct gas_query *gas, const u8 *da, const u8 *sa,
const u8 *bssid, u8 categ, const u8 *data, size_t len,
int freq);
int pmf_in_use(struct wpa_supplicant *wpa_s, const u8 *addr);
/**
* enum gas_query_result - GAS query result
*/
enum gas_query_result {
GAS_QUERY_SUCCESS,
GAS_QUERY_FAILURE,
GAS_QUERY_TIMEOUT,
GAS_QUERY_PEER_ERROR,
GAS_QUERY_INTERNAL_ERROR,
GAS_QUERY_STOPPED,
GAS_QUERY_DELETED_AT_DEINIT
};
int gas_query_req(struct gas_query *gas, const u8 *dst, int freq,
int wildcard_bssid, int maintain_addr, 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);
int gas_query_stop(struct gas_query *gas, u8 dialog_token);
#else /* CONFIG_GAS */
static inline struct gas_query * gas_query_init(struct wpa_supplicant *wpa_s)
{
return (void *) 1;
}
static inline void gas_query_deinit(struct gas_query *gas)
{
}
#endif /* CONFIG_GAS */
#endif /* GAS_QUERY_H */