Return-path: Received: from mx0a-0016f401.pphosted.com ([67.231.148.174]:50718 "EHLO mx0a-0016f401.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755497AbcDEH2w (ORCPT ); Tue, 5 Apr 2016 03:28:52 -0400 Received: from pps.filterd (m0045849.ppops.net [127.0.0.1]) by mx0a-0016f401.pphosted.com (8.16.0.11/8.16.0.11) with SMTP id u357SLHV028609 for ; Tue, 5 Apr 2016 00:28:51 -0700 Received: from sc-exch01.marvell.com ([199.233.58.181]) by mx0a-0016f401.pphosted.com with ESMTP id 222bekhtp4-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-SHA384 bits=256 verify=NOT) for ; Tue, 05 Apr 2016 00:28:51 -0700 From: Amitkumar Karwar To: CC: Cathy Luo , Nishant Sarmukadam , Ganapathi Bhat , Amitkumar Karwar Subject: [PATCH 1/7] mwifiex: add support for GTK rekey offload Date: Tue, 5 Apr 2016 00:22:26 -0700 Message-ID: <1459840952-25338-1-git-send-email-akarwar@marvell.com> (sfid-20160405_092857_727408_1762F525) MIME-Version: 1.0 Content-Type: text/plain Sender: linux-wireless-owner@vger.kernel.org List-ID: From: Ganapathi Bhat Added driver functionality to offload GTK rekey to firmware. When AP sends new GTK, firmware will update it. Signed-off-by: Ganapathi Bhat Signed-off-by: Amitkumar Karwar --- drivers/net/wireless/marvell/mwifiex/cfg80211.c | 13 +++++++++- drivers/net/wireless/marvell/mwifiex/fw.h | 10 ++++++++ drivers/net/wireless/marvell/mwifiex/sta_cmd.c | 28 ++++++++++++++++++++++ drivers/net/wireless/marvell/mwifiex/sta_cmdresp.c | 2 ++ drivers/net/wireless/marvell/mwifiex/sta_event.c | 3 +++ 5 files changed, 55 insertions(+), 1 deletion(-) diff --git a/drivers/net/wireless/marvell/mwifiex/cfg80211.c b/drivers/net/wireless/marvell/mwifiex/cfg80211.c index 108e641..ca8cdd2 100644 --- a/drivers/net/wireless/marvell/mwifiex/cfg80211.c +++ b/drivers/net/wireless/marvell/mwifiex/cfg80211.c @@ -3416,6 +3416,16 @@ static void mwifiex_cfg80211_set_wakeup(struct wiphy *wiphy, device_set_wakeup_enable(adapter->dev, enabled); } + +static int mwifiex_set_rekey_data(struct wiphy *wiphy, struct net_device *dev, + struct cfg80211_gtk_rekey_data *data) +{ + struct mwifiex_private *priv = mwifiex_netdev_get_priv(dev); + + return mwifiex_send_cmd(priv, HostCmd_CMD_GTK_REKEY_OFFLOAD_CFG, + HostCmd_ACT_GEN_SET, 0, data, true); +} + #endif static int mwifiex_get_coalesce_pkt_type(u8 *byte_seq) @@ -3938,6 +3948,7 @@ static struct cfg80211_ops mwifiex_cfg80211_ops = { .suspend = mwifiex_cfg80211_suspend, .resume = mwifiex_cfg80211_resume, .set_wakeup = mwifiex_cfg80211_set_wakeup, + .set_rekey_data = mwifiex_set_rekey_data, #endif .set_coalesce = mwifiex_cfg80211_set_coalesce, .tdls_mgmt = mwifiex_cfg80211_tdls_mgmt, @@ -3954,7 +3965,7 @@ static struct cfg80211_ops mwifiex_cfg80211_ops = { #ifdef CONFIG_PM static const struct wiphy_wowlan_support mwifiex_wowlan_support = { .flags = WIPHY_WOWLAN_MAGIC_PKT | WIPHY_WOWLAN_DISCONNECT | - WIPHY_WOWLAN_NET_DETECT, + WIPHY_WOWLAN_NET_DETECT | WIPHY_WOWLAN_SUPPORTS_GTK_REKEY, .n_patterns = MWIFIEX_MEF_MAX_FILTERS, .pattern_min_len = 1, .pattern_max_len = MWIFIEX_MAX_PATTERN_LEN, diff --git a/drivers/net/wireless/marvell/mwifiex/fw.h b/drivers/net/wireless/marvell/mwifiex/fw.h index c134cf8..8703d24 100644 --- a/drivers/net/wireless/marvell/mwifiex/fw.h +++ b/drivers/net/wireless/marvell/mwifiex/fw.h @@ -372,6 +372,7 @@ enum MWIFIEX_802_11_PRIVACY_FILTER { #define HostCmd_CMD_COALESCE_CFG 0x010a #define HostCmd_CMD_MGMT_FRAME_REG 0x010c #define HostCmd_CMD_REMAIN_ON_CHAN 0x010d +#define HostCmd_CMD_GTK_REKEY_OFFLOAD_CFG 0x010f #define HostCmd_CMD_11AC_CFG 0x0112 #define HostCmd_CMD_HS_WAKEUP_REASON 0x0116 #define HostCmd_CMD_TDLS_CONFIG 0x0100 @@ -2183,6 +2184,14 @@ struct host_cmd_ds_wakeup_reason { u16 wakeup_reason; } __packed; +struct host_cmd_ds_gtk_rekey_params { + __le16 action; + u8 kck[NL80211_KCK_LEN]; + u8 kek[NL80211_KEK_LEN]; + __le32 replay_ctr_low; + __le32 replay_ctr_high; +} __packed; + struct host_cmd_ds_command { __le16 command; __le16 size; @@ -2256,6 +2265,7 @@ struct host_cmd_ds_command { struct host_cmd_ds_multi_chan_policy mc_policy; struct host_cmd_ds_robust_coex coex; struct host_cmd_ds_wakeup_reason hs_wakeup_reason; + struct host_cmd_ds_gtk_rekey_params rekey; } params; } __packed; diff --git a/drivers/net/wireless/marvell/mwifiex/sta_cmd.c b/drivers/net/wireless/marvell/mwifiex/sta_cmd.c index 30f1526..8cb895b 100644 --- a/drivers/net/wireless/marvell/mwifiex/sta_cmd.c +++ b/drivers/net/wireless/marvell/mwifiex/sta_cmd.c @@ -1558,6 +1558,30 @@ static int mwifiex_cmd_robust_coex(struct mwifiex_private *priv, return 0; } +static int mwifiex_cmd_gtk_rekey_offload(struct mwifiex_private *priv, + struct host_cmd_ds_command *cmd, + u16 cmd_action, + struct cfg80211_gtk_rekey_data *data) +{ + struct host_cmd_ds_gtk_rekey_params *rekey = &cmd->params.rekey; + u64 rekey_ctr; + + cmd->command = cpu_to_le16(HostCmd_CMD_GTK_REKEY_OFFLOAD_CFG); + cmd->size = cpu_to_le16(sizeof(*rekey) + S_DS_GEN); + + rekey->action = cpu_to_le16(cmd_action); + if (cmd_action == HostCmd_ACT_GEN_SET) { + memcpy(rekey->kek, data->kek, NL80211_KEK_LEN); + memcpy(rekey->kck, data->kck, NL80211_KCK_LEN); + rekey_ctr = be64_to_cpup((__be64 *)data->replay_ctr); + rekey->replay_ctr_low = cpu_to_le32((u32)rekey_ctr); + rekey->replay_ctr_high = + cpu_to_le32((u32)((u64)rekey_ctr >> 32)); + } + + return 0; +} + static int mwifiex_cmd_coalesce_cfg(struct mwifiex_private *priv, struct host_cmd_ds_command *cmd, @@ -2094,6 +2118,10 @@ int mwifiex_sta_prepare_cmd(struct mwifiex_private *priv, uint16_t cmd_no, ret = mwifiex_cmd_robust_coex(priv, cmd_ptr, cmd_action, data_buf); break; + case HostCmd_CMD_GTK_REKEY_OFFLOAD_CFG: + ret = mwifiex_cmd_gtk_rekey_offload(priv, cmd_ptr, cmd_action, + data_buf); + break; default: mwifiex_dbg(priv->adapter, ERROR, "PREP_CMD: unknown cmd- %#x\n", cmd_no); diff --git a/drivers/net/wireless/marvell/mwifiex/sta_cmdresp.c b/drivers/net/wireless/marvell/mwifiex/sta_cmdresp.c index 96732cb..d18c797 100644 --- a/drivers/net/wireless/marvell/mwifiex/sta_cmdresp.c +++ b/drivers/net/wireless/marvell/mwifiex/sta_cmdresp.c @@ -1233,6 +1233,8 @@ int mwifiex_process_sta_cmdresp(struct mwifiex_private *priv, u16 cmdresp_no, case HostCmd_CMD_ROBUST_COEX: ret = mwifiex_ret_robust_coex(priv, resp, data_buf); break; + case HostCmd_CMD_GTK_REKEY_OFFLOAD_CFG: + break; default: mwifiex_dbg(adapter, ERROR, "CMD_RESP: unknown cmd response %#x\n", diff --git a/drivers/net/wireless/marvell/mwifiex/sta_event.c b/drivers/net/wireless/marvell/mwifiex/sta_event.c index 070bce4..0104108 100644 --- a/drivers/net/wireless/marvell/mwifiex/sta_event.c +++ b/drivers/net/wireless/marvell/mwifiex/sta_event.c @@ -147,6 +147,9 @@ mwifiex_reset_connect_state(struct mwifiex_private *priv, u16 reason_code) mwifiex_stop_net_dev_queue(priv->netdev, adapter); if (netif_carrier_ok(priv->netdev)) netif_carrier_off(priv->netdev); + + mwifiex_send_cmd(priv, HostCmd_CMD_GTK_REKEY_OFFLOAD_CFG, + HostCmd_ACT_GEN_REMOVE, 0, NULL, false); } static int mwifiex_parse_tdls_event(struct mwifiex_private *priv, -- 1.8.1.4