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p54: enable proper frame injection 

This patch enables frame injection in monitor mode for all p54 devices.
As a result, any user can finally use the aircrack-ng suite out of the box.

e.g:
aireplay-ng --test wlan0
Trying broadcast probe requests...
Injection is working!
Found 1 AP

Trying directed probe requests...
XX:XX:XX:XX:XX:XX - channel: i - 'SSID'
Ping (min/avg/max): 1.536ms/3.193ms/4.377ms Power: 193.00
30/30: 100%

Signed-off-by: Christian Lamparter <chunkeey@web.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Christian Lamparter 2008-12-21 22:52:10 +01:00 committed by John W. Linville
parent a15bd00543
commit 29701e5abf
1 changed files with 69 additions and 26 deletions
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95
drivers/net/wireless/p54/p54common.c
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@ -775,9 +775,16 @@ static void p54_rx_frame_sent(struct ieee80211_hw *dev, struct sk_buff *skb)
priv->tx_stats[entry_data->hw_queue].len--;
priv->stats.dot11ACKFailureCount += payload->tries - 1;
if (unlikely(entry == priv->cached_beacon)) {
/*
* Frames in P54_QUEUE_FWSCAN and P54_QUEUE_BEACON are
* generated by the driver. Therefore tx_status is bogus
* and we don't want to confuse the mac80211 stack.
*/
if (unlikely(entry_data->hw_queue < P54_QUEUE_FWSCAN)) {
if (entry_data->hw_queue == P54_QUEUE_BEACON)
priv->cached_beacon = NULL;
kfree_skb(entry);
priv->cached_beacon = NULL;
goto out;
}
@ -1240,33 +1247,26 @@ static int p54_tx_fill(struct ieee80211_hw *dev, struct sk_buff *skb,
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
struct p54_common *priv = dev->priv;
int ret = 0;
if (unlikely(ieee80211_is_mgmt(hdr->frame_control))) {
if (ieee80211_is_beacon(hdr->frame_control)) {
*aid = 0;
*queue = P54_QUEUE_BEACON;
*extra_len = IEEE80211_MAX_TIM_LEN;
*flags = P54_HDR_FLAG_DATA_OUT_TIMESTAMP;
return 0;
} else if (ieee80211_is_probe_resp(hdr->frame_control)) {
*aid = 0;
*queue = P54_QUEUE_MGMT;
*flags = P54_HDR_FLAG_DATA_OUT_TIMESTAMP |
P54_HDR_FLAG_DATA_OUT_NOCANCEL;
return 0;
} else {
*queue = P54_QUEUE_MGMT;
ret = 0;
}
} else {
*queue += P54_QUEUE_DATA;
ret = 1;
}
int ret = 1;
switch (priv->mode) {
case NL80211_IFTYPE_MONITOR:
/*
* We have to set P54_HDR_FLAG_DATA_OUT_PROMISC for
* every frame in promiscuous/monitor mode.
* see STSW45x0C LMAC API - page 12.
*/
*aid = 0;
*flags = P54_HDR_FLAG_DATA_OUT_PROMISC;
*queue += P54_QUEUE_DATA;
break;
case NL80211_IFTYPE_STATION:
*aid = 1;
if (unlikely(ieee80211_is_mgmt(hdr->frame_control))) {
*queue = P54_QUEUE_MGMT;
ret = 0;
} else
*queue += P54_QUEUE_DATA;
break;
case NL80211_IFTYPE_AP:
case NL80211_IFTYPE_ADHOC:
@ -1276,10 +1276,44 @@ static int p54_tx_fill(struct ieee80211_hw *dev, struct sk_buff *skb,
*queue = P54_QUEUE_CAB;
return 0;
}
if (unlikely(ieee80211_is_mgmt(hdr->frame_control))) {
if (ieee80211_is_probe_resp(hdr->frame_control)) {
*aid = 0;
*queue = P54_QUEUE_MGMT;
*flags = P54_HDR_FLAG_DATA_OUT_TIMESTAMP |
P54_HDR_FLAG_DATA_OUT_NOCANCEL;
return 0;
} else if (ieee80211_is_beacon(hdr->frame_control)) {
*aid = 0;
if (info->flags & IEEE80211_TX_CTL_INJECTED) {
/*
* Injecting beacons on top of a AP is
* not a good idea... nevertheless,
* it should be doable.
*/
*queue += P54_QUEUE_DATA;
return 1;
}
*flags = P54_HDR_FLAG_DATA_OUT_TIMESTAMP;
*queue = P54_QUEUE_BEACON;
*extra_len = IEEE80211_MAX_TIM_LEN;
return 0;
} else {
*queue = P54_QUEUE_MGMT;
ret = 0;
}
} else
*queue += P54_QUEUE_DATA;
if (info->control.sta)
*aid = info->control.sta->aid;
else
*flags |= P54_HDR_FLAG_DATA_OUT_NOCANCEL;
break;
}
return ret;
}
@ -1497,11 +1531,20 @@ static int p54_setup_mac(struct ieee80211_hw *dev)
case NL80211_IFTYPE_MESH_POINT:
mode = P54_FILTER_TYPE_IBSS;
break;
case NL80211_IFTYPE_MONITOR:
mode = P54_FILTER_TYPE_PROMISCUOUS;
break;
default:
mode = P54_FILTER_TYPE_NONE;
break;
}
if (priv->filter_flags & FIF_PROMISC_IN_BSS)
/*
* "TRANSPARENT and PROMISCUOUS are mutually exclusive"
* STSW45X0C LMAC API - page 12
*/
if ((priv->filter_flags & FIF_PROMISC_IN_BSS) &&
(mode != P54_FILTER_TYPE_PROMISCUOUS))
mode |= P54_FILTER_TYPE_TRANSPARENT;
} else
mode = P54_FILTER_TYPE_RX_DISABLED;