diff options
| author | Chung-Hsien Hsu <stanley.hsu@cypress.com> | 2020-08-17 02:33:14 -0500 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2020-09-16 08:56:04 +0300 |
| commit | 787fb926f8ccb95f43f0870cebb1d9af21c7f194 (patch) | |
| tree | a36572662ee1852b63e2c64092dc91549f9a381e /drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c | |
| parent | 5a6bd84f815485800699f55c78f690b2ed35f0c5 (diff) | |
brcmfmac: support 4-way handshake offloading for WPA/WPA2-PSK in AP mode
Firmware may have authenticator code built-in. This is detected by the
driver and indicated in the wiphy features flags. User space can use
this flag to determine whether or not to provide the pre-shared key
material in the nl80211 start AP command to offload the 4-way handshake
in AP mode.
Signed-off-by: Chung-Hsien Hsu <stanley.hsu@cypress.com>
Signed-off-by: Chi-Hsien Lin <chi-hsien.lin@cypress.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200817073316.33402-3-stanley.hsu@cypress.com
Diffstat (limited to 'drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c')
| -rw-r--r-- | drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c index 8b5fda9bb853..4b06e4dbe867 100644 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c @@ -4679,6 +4679,8 @@ brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev, struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); struct brcmf_if *ifp = netdev_priv(ndev); struct brcmf_pub *drvr = cfg->pub; + struct brcmf_cfg80211_profile *profile = &ifp->vif->profile; + struct cfg80211_crypto_settings *crypto = &settings->crypto; const struct brcmf_tlv *ssid_ie; const struct brcmf_tlv *country_ie; struct brcmf_ssid_le ssid_le; @@ -4818,6 +4820,17 @@ brcmf_cfg80211_start_ap(struct wiphy *wiphy, struct net_device *ndev, goto exit; } + if (crypto->psk) { + brcmf_dbg(INFO, "using PSK offload\n"); + profile->use_fwauth |= BIT(BRCMF_PROFILE_FWAUTH_PSK); + err = brcmf_set_pmk(ifp, crypto->psk, + BRCMF_WSEC_MAX_PSK_LEN); + if (err < 0) + goto exit; + } + if (profile->use_fwauth == 0) + profile->use_fwauth = BIT(BRCMF_PROFILE_FWAUTH_NONE); + err = brcmf_parse_configure_security(ifp, settings, NL80211_IFTYPE_AP); if (err < 0) { @@ -4904,6 +4917,7 @@ static int brcmf_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *ndev) struct brcmf_cfg80211_info *cfg = wiphy_to_cfg(wiphy); struct brcmf_if *ifp = netdev_priv(ndev); struct brcmf_pub *drvr = cfg->pub; + struct brcmf_cfg80211_profile *profile = &ifp->vif->profile; s32 err; struct brcmf_fil_bss_enable_le bss_enable; struct brcmf_join_params join_params; @@ -4915,6 +4929,12 @@ static int brcmf_cfg80211_stop_ap(struct wiphy *wiphy, struct net_device *ndev) /* first to make sure they get processed by fw. */ msleep(400); + if (profile->use_fwauth != BIT(BRCMF_PROFILE_FWAUTH_NONE)) { + if (profile->use_fwauth & BIT(BRCMF_PROFILE_FWAUTH_PSK)) + brcmf_set_pmk(ifp, NULL, 0); + profile->use_fwauth = BIT(BRCMF_PROFILE_FWAUTH_NONE); + } + if (ifp->vif->mbss) { err = brcmf_fil_cmd_int_set(ifp, BRCMF_C_DOWN, 1); return err; @@ -7063,6 +7083,9 @@ static int brcmf_setup_wiphy(struct wiphy *wiphy, struct brcmf_if *ifp) wiphy_ext_feature_set(wiphy, NL80211_EXT_FEATURE_SAE_OFFLOAD); } + if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_FWAUTH)) + wiphy_ext_feature_set(wiphy, + NL80211_EXT_FEATURE_4WAY_HANDSHAKE_AP_PSK); wiphy->mgmt_stypes = brcmf_txrx_stypes; wiphy->max_remain_on_channel_duration = 5000; if (brcmf_feat_is_enabled(ifp, BRCMF_FEAT_PNO)) { |