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nl80211: Propagate Probe Response offload capabilities from kernel

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Translate nl80211 flags to wpa_supplicant flags for Probe Response
offload support. The existence of the nl80211 PROBE_RESP_OFFLOAD_SUPPORT
attribute means Probe Response offload is supported. The value of the
attribute is a bitmap of supported protocols.

Signed-hostap: Arik Nemtsov <arik@wizery.com>
Signed-off-by: Arik Nemtsov <arik@wizery.com>
This commit is contained in:
Arik Nemtsov 2011-12-10 16:50:00 +02:00 committed by Jouni Malinen
parent afcc9ea1a6
commit 562c9d976e
2 changed files with 43 additions and 0 deletions
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16
src/drivers/driver.h
View file

@ -759,6 +759,8 @@ struct wpa_driver_capa {
#define WPA_DRIVER_FLAGS_TDLS_SUPPORT 0x00080000
/* Driver requires external TDLS setup/teardown/discovery */
#define WPA_DRIVER_FLAGS_TDLS_EXTERNAL_SETUP 0x00100000
/* Driver indicates support for Probe Response offloading in AP mode */
#define WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD 0x00200000
unsigned int flags;
int max_scan_ssids;
@ -776,6 +778,20 @@ struct wpa_driver_capa {
* supports in AP mode
*/
unsigned int max_stations;
/**
* probe_resp_offloads - Bitmap of supported protocols by the driver
* for Probe Response offloading.
*/
/* Driver Probe Response offloading support for WPS ver. 1 */
#define WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS 0x00000001
/* Driver Probe Response offloading support for WPS ver. 2 */
#define WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2 0x00000002
/* Driver Probe Response offloading support for P2P */
#define WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P 0x00000004
/* Driver Probe Response offloading support for IEEE 802.11u (Interworking) */
#define WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING 0x00000008
unsigned int probe_resp_offloads;
};

27
src/drivers/driver_nl80211.c
View file

@ -2268,6 +2268,23 @@ struct wiphy_info_data {
};
static unsigned int probe_resp_offload_support(int supp_protocols)
{
unsigned int prot = 0;
if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS)
prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS;
if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_WPS2)
prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_WPS2;
if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_P2P)
prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_P2P;
if (supp_protocols & NL80211_PROBE_RESP_OFFLOAD_SUPPORT_80211U)
prot |= WPA_DRIVER_PROBE_RESP_OFFLOAD_INTERWORKING;
return prot;
}
static int wiphy_info_handler(struct nl_msg *msg, void *arg)
{
struct nlattr *tb[NL80211_ATTR_MAX + 1];
@ -2459,6 +2476,16 @@ broken_combination:
info->data_tx_status = 1;
}
if (tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]) {
int protocols =
nla_get_u32(tb[NL80211_ATTR_PROBE_RESP_OFFLOAD]);
wpa_printf(MSG_DEBUG, "nl80211: Supports Probe Response "
"offload in AP mode");
capa->flags |= WPA_DRIVER_FLAGS_PROBE_RESP_OFFLOAD;
capa->probe_resp_offloads =
probe_resp_offload_support(protocols);
}
return NL_SKIP;
}