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From:   James Prestwood <prestwoj@gmail.com>
To:     linux-wireless@vger.kernel.org
Cc:     James Prestwood <prestwoj@gmail.com>
Subject: [PATCH v2 2/2] mac80211_hwsim: set rx_status mactime/flag for wmediumd path
Date:   Fri, 22 Nov 2019 09:06:12 -0800
Message-Id: <20191122170612.8123-2-prestwoj@gmail.com>
In-Reply-To: <20191122170612.8123-1-prestwoj@gmail.com>
References: <20191122170612.8123-1-prestwoj@gmail.com>
Sender: linux-wireless-owner@vger.kernel.org
Precedence: bulk

This patch sets the required rx_status mactime and flags in order for
the parent TSF value to be calculated and sent to userspace. This is
already done elsewhere, but this patch allows this to work for the
wmediumd code path.
---
 drivers/net/wireless/mac80211_hwsim.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index e9bc599481d4..01b2ac9707cc 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -3238,6 +3238,8 @@ static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
 	int frame_data_len;
 	void *frame_data;
 	struct sk_buff *skb = NULL;
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb_2->data;
+	u64 now;
 
 	if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] ||
 	    !info->attrs[HWSIM_ATTR_FRAME] ||
@@ -3300,6 +3302,18 @@ static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
 	rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);
 	rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]);
 
+	if (ieee80211_is_beacon(hdr->frame_control) ||
+	    ieee80211_is_probe_resp(hdr->frame_control)) {
+		rx_status.boottime_ns = ktime_get_boottime_ns();
+		now = data2->abs_bcn_ts;
+	} else {
+		now = mac80211_hwsim_get_tsf_raw();
+	}
+
+	rx_status.mactime = now + data2->tsf_offset;
+
+	rx_status.flag |= RX_FLAG_MACTIME_START;
+
 	memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status));
 	data2->rx_pkts++;
 	data2->rx_bytes += skb->len;
-- 
2.17.1