On 11-11-14 07:27, Gautam (Gautam Kumar) Shukla wrote:
>
> For offloading 4 way handshake to driver , currently we don't have WIPHY capability flag to communicate same to supplicant.
> I have added the flag NL80211_ATTR_4WAY_KEY_HANDSHAKE and rest of the code for the same.
>
> Tested on x86 linux machine
>
> Signed-off-by: Gautam kumar shukla <gautams@xxxxxxxxxxxx>
> ---
> include/net/cfg80211.h | 4 ++++
> include/uapi/linux/nl80211.h | 5 ++++-
> net/wireless/nl80211.c | 4 ++++
> 3 files changed, 12 insertions(+), 1 deletion(-)
>
> diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
> index 6f744e0..b37de0a 100644
> --- a/include/net/cfg80211.h
> +++ b/include/net/cfg80211.h
> @@ -2629,7 +2629,10 @@ struct cfg80211_ops {
> * TSPEC sessions (TID aka TSID 0-7) with the NL80211_CMD_ADD_TX_TS
> * command. Standard IEEE 802.11 TSPEC setup is not yet supported, it
> * needs to be able to handle Block-Ack agreements and other things.
> + * @WIPHY_FLAG_SUPPORTS_4WAY_HANDHSHAKE:the device supports 4way handshake
Indentation seems wrong here. Also add space after the colon sign.
> + * in the driver/firmware.
> */
> +
> enum wiphy_flags {
> WIPHY_FLAG_SUPPORTS_WMM_ADMISSION = BIT(0),
> /* use hole at 1 */
> @@ -2654,6 +2657,7 @@ enum wiphy_flags {
> WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL = BIT(21),
> WIPHY_FLAG_SUPPORTS_5_10_MHZ = BIT(22),
> WIPHY_FLAG_HAS_CHANNEL_SWITCH = BIT(23),
> + WIPHY_FLAG_SUPPORTS_4WAY_HANDSHAKE = BIT(24),
> };
>
> /**
> diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
> index b01d5dd..2c474a3 100644
> --- a/include/uapi/linux/nl80211.h
> +++ b/include/uapi/linux/nl80211.h
> @@ -1640,9 +1640,11 @@ enum nl80211_commands {
> *
> * @NL80211_ATTR_PSK: a PSK value (u8 attribute).This is 32-octet (256-bit)
> * PSK.
> + * @NL80211_ATTR_4WAY_KEY_HANDSHAKE: Indicates whether the driver is capable
> + * of 4way key handshake
convention is to have a tab in the continuing line.
> *
> *
> - * @NL80211_ATTR_MAX: highest attribute number currently defined
> + * * @NL80211_ATTR_MAX: highest attribute number currently defined
huh?
> * @__NL80211_ATTR_AFTER_LAST: internal use
> */
> enum nl80211_attrs {
> @@ -1995,6 +1997,7 @@ enum nl80211_attrs {
> NL80211_ATTR_SMPS_MODE,
>
> NL80211_ATTR_PSK,
> + NL80211_ATTR_4WAY_KEY_HANDSHAKE,
>
> /* add attributes here, update the policy in nl80211.c */
>
> diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
> index 91c24b1..5f85c41 100644
> --- a/net/wireless/nl80211.c
> +++ b/net/wireless/nl80211.c
> @@ -396,6 +396,7 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
> [NL80211_ATTR_ADMITTED_TIME] = { .type = NLA_U16 },
> [NL80211_ATTR_SMPS_MODE] = { .type = NLA_U8 },
> [NL80211_ATTR_PSK] = { .type = NLA_BINARY, .len = 32 },
> + [NL80211_ATTR_4WAY_KEY_HANDSHAKE] = { .type = NLA_FLAG },
> };
>
> /* policy for the key attributes */
> @@ -1303,6 +1304,9 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
> if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_FW_ROAM) &&
> nla_put_flag(msg, NL80211_ATTR_ROAM_SUPPORT))
> goto nla_put_failure;
> + if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_4WAY_HANDSHAKE) &&
> + nla_put_flag(msg,NL80211_ATTR_4WAY_KEY_HANDSHAKE))
> + goto nla_put_failure;
> if ((rdev->wiphy.flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
> nla_put_flag(msg, NL80211_ATTR_TDLS_SUPPORT))
> goto nla_put_failure;
>
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