mac80211-hwsim: add frequency attribute to netlink pkts

Add frequency attribute when sending to user-space over
netlink socket.  The frequency is currently ignored when
receiving from user-space.

Signed-off-by: Ben Greear <greearb@candelatech.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>

diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index d109e505085787cf9dba5cc163a6462941544e79..f808706d9ee3bd296e17933cfa91c494350edfe3 100644 (file)
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -910,6 +910,9 @@ static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw,
        if (nla_put_u32(skb, HWSIM_ATTR_FLAGS, hwsim_flags))
                goto nla_put_failure;
 
+       if (nla_put_u32(skb, HWSIM_ATTR_FREQ, data->channel->center_freq))
+               goto nla_put_failure;
+
        /* We get the tx control (rate and retries) info*/
 
        for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) {
@@ -2463,6 +2466,9 @@ static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2,
 
        /* A frame is received from user space */
        memset(&rx_status, 0, sizeof(rx_status));
+       /* TODO: Check ATTR_FREQ if it exists, and maybe throw away off-channel
+        * packets?
+        */
        rx_status.freq = data2->channel->center_freq;
        rx_status.band = data2->channel->band;
        rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]);

diff --git a/drivers/net/wireless/mac80211_hwsim.h b/drivers/net/wireless/mac80211_hwsim.h
index 448e64b619cbd5faccc4054606f014757ab34cdc..f08debdd639b5aeeb35a819fe99fd5811301f13c 100644 (file)
--- a/drivers/net/wireless/mac80211_hwsim.h
+++ b/drivers/net/wireless/mac80211_hwsim.h
@@ -60,7 +60,7 @@ enum hwsim_tx_control_flags {
  * space, uses:
  *     %HWSIM_ATTR_ADDR_TRANSMITTER, %HWSIM_ATTR_ADDR_RECEIVER,
  *     %HWSIM_ATTR_FRAME, %HWSIM_ATTR_FLAGS, %HWSIM_ATTR_RX_RATE,
- *     %HWSIM_ATTR_SIGNAL, %HWSIM_ATTR_COOKIE
+ *     %HWSIM_ATTR_SIGNAL, %HWSIM_ATTR_COOKIE, %HWSIM_ATTR_FREQ (optional)
  * @HWSIM_CMD_TX_INFO_FRAME: Transmission info report from user space to
  * kernel, uses:
  *     %HWSIM_ATTR_ADDR_TRANSMITTER, %HWSIM_ATTR_FLAGS,
@@ -119,6 +119,7 @@ enum {
  *     command to force radio removal when process that created the radio dies
  * @HWSIM_ATTR_RADIO_NAME: Name of radio, e.g. phy666
  * @HWSIM_ATTR_NO_VIF:  Do not create vif (wlanX) when creating radio.
+ * @HWSIM_ATTR_FREQ: Frequency at which packet is transmitted or received.
  * @__HWSIM_ATTR_MAX: enum limit
  */
 
@@ -143,6 +144,7 @@ enum {
        HWSIM_ATTR_DESTROY_RADIO_ON_CLOSE,
        HWSIM_ATTR_RADIO_NAME,
        HWSIM_ATTR_NO_VIF,
+       HWSIM_ATTR_FREQ,
        __HWSIM_ATTR_MAX,
 };
 #define HWSIM_ATTR_MAX (__HWSIM_ATTR_MAX - 1)