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path: root/drivers/net/wireless/mac80211_hwsim.c
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Diffstat (limited to 'drivers/net/wireless/mac80211_hwsim.c')
-rw-r--r--drivers/net/wireless/mac80211_hwsim.c56
1 files changed, 50 insertions, 6 deletions
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index 4b9e730d2c8a..b7ce6a6e355f 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -27,6 +27,7 @@
#include <linux/etherdevice.h>
#include <linux/debugfs.h>
#include <linux/module.h>
+#include <linux/ktime.h>
#include <net/genetlink.h>
#include "mac80211_hwsim.h"
@@ -321,11 +322,15 @@ struct mac80211_hwsim_data {
struct dentry *debugfs_group;
int power_level;
+
+ /* difference between this hw's clock and the real clock, in usecs */
+ u64 tsf_offset;
};
struct hwsim_radiotap_hdr {
struct ieee80211_radiotap_header hdr;
+ __le64 rt_tsft;
u8 rt_flags;
u8 rt_rate;
__le16 rt_channel;
@@ -367,6 +372,28 @@ static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
return NETDEV_TX_OK;
}
+static __le64 __mac80211_hwsim_get_tsf(struct mac80211_hwsim_data *data)
+{
+ struct timeval tv = ktime_to_timeval(ktime_get_real());
+ u64 now = tv.tv_sec * USEC_PER_SEC + tv.tv_usec;
+ return cpu_to_le64(now + data->tsf_offset);
+}
+
+static u64 mac80211_hwsim_get_tsf(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif)
+{
+ struct mac80211_hwsim_data *data = hw->priv;
+ return le64_to_cpu(__mac80211_hwsim_get_tsf(data));
+}
+
+static void mac80211_hwsim_set_tsf(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif, u64 tsf)
+{
+ struct mac80211_hwsim_data *data = hw->priv;
+ struct timeval tv = ktime_to_timeval(ktime_get_real());
+ u64 now = tv.tv_sec * USEC_PER_SEC + tv.tv_usec;
+ data->tsf_offset = tsf - now;
+}
static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
struct sk_buff *tx_skb)
@@ -391,7 +418,9 @@ static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
(1 << IEEE80211_RADIOTAP_RATE) |
+ (1 << IEEE80211_RADIOTAP_TSFT) |
(1 << IEEE80211_RADIOTAP_CHANNEL));
+ hdr->rt_tsft = __mac80211_hwsim_get_tsf(data);
hdr->rt_flags = 0;
hdr->rt_rate = txrate->bitrate / 5;
hdr->rt_channel = cpu_to_le16(data->channel->center_freq);
@@ -592,7 +621,7 @@ static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
return;
nla_put_failure:
- printk(KERN_DEBUG "mac80211_hwsim: error occured in %s\n", __func__);
+ printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
}
static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
@@ -610,7 +639,7 @@ static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
}
memset(&rx_status, 0, sizeof(rx_status));
- /* TODO: set mactime */
+ rx_status.flag |= RX_FLAG_MACTIME_MPDU;
rx_status.freq = data->channel->center_freq;
rx_status.band = data->channel->band;
rx_status.rate_idx = info->control.rates[0].idx;
@@ -654,6 +683,8 @@ static bool mac80211_hwsim_tx_frame_no_nl(struct ieee80211_hw *hw,
if (mac80211_hwsim_addr_match(data2, hdr->addr1))
ack = true;
+ rx_status.mactime =
+ le64_to_cpu(__mac80211_hwsim_get_tsf(data2));
memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
ieee80211_rx_irqsafe(data2->hw, nskb);
}
@@ -667,6 +698,12 @@ static void mac80211_hwsim_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
bool ack;
struct ieee80211_tx_info *txi;
u32 _pid;
+ struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *) skb->data;
+ struct mac80211_hwsim_data *data = hw->priv;
+
+ if (ieee80211_is_beacon(mgmt->frame_control) ||
+ ieee80211_is_probe_resp(mgmt->frame_control))
+ mgmt->u.beacon.timestamp = __mac80211_hwsim_get_tsf(data);
mac80211_hwsim_monitor_rx(hw, skb);
@@ -763,9 +800,11 @@ static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
struct ieee80211_vif *vif)
{
struct ieee80211_hw *hw = arg;
+ struct mac80211_hwsim_data *data = hw->priv;
struct sk_buff *skb;
struct ieee80211_tx_info *info;
u32 _pid;
+ struct ieee80211_mgmt *mgmt;
hwsim_check_magic(vif);
@@ -779,6 +818,9 @@ static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
return;
info = IEEE80211_SKB_CB(skb);
+ mgmt = (struct ieee80211_mgmt *) skb->data;
+ mgmt->u.beacon.timestamp = __mac80211_hwsim_get_tsf(data);
+
mac80211_hwsim_monitor_rx(hw, skb);
/* wmediumd mode check */
@@ -1199,6 +1241,8 @@ static struct ieee80211_ops mac80211_hwsim_ops =
.sw_scan_start = mac80211_hwsim_sw_scan,
.sw_scan_complete = mac80211_hwsim_sw_scan_complete,
.flush = mac80211_hwsim_flush,
+ .get_tsf = mac80211_hwsim_get_tsf,
+ .set_tsf = mac80211_hwsim_set_tsf,
};
@@ -1564,7 +1608,7 @@ static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
return 0;
err:
- printk(KERN_DEBUG "mac80211_hwsim: error occured in %s\n", __func__);
+ printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
goto out;
out:
dev_kfree_skb(skb);
@@ -1580,11 +1624,11 @@ static int hwsim_register_received_nl(struct sk_buff *skb_2,
wmediumd_pid = info->snd_pid;
printk(KERN_DEBUG "mac80211_hwsim: received a REGISTER, "
- "switching to wmediumd mode with pid %d\n", info->snd_pid);
+ "switching to wmediumd mode with pid %d\n", info->snd_pid);
return 0;
out:
- printk(KERN_DEBUG "mac80211_hwsim: error occured in %s\n", __func__);
+ printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
return -EINVAL;
}
@@ -1647,7 +1691,7 @@ static int hwsim_init_netlink(void)
return 0;
failure:
- printk(KERN_DEBUG "mac80211_hwsim: error occured in %s\n", __func__);
+ printk(KERN_DEBUG "mac80211_hwsim: error occurred in %s\n", __func__);
return -EINVAL;
}