From: Ganapathi Bhat <gb...@marvell.com>
Added driver functionality to offload GTK rekey to firmware. When
AP sends new GTK, firmware will update it.
Signed-off-by: Ganapathi Bhat <gb...@marvell.com>
Signed-off-by: Amitkumar Karwar <akar...@marvell.com>
---
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
--
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