From d10c4ec8b4bc02f3874c7ef3c3539e4e7e123969 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Stefanik=20G=C3=A1bor?= <netrolller.3d@gmail.com>
Date: Wed, 3 Sep 2008 11:26:59 +0800
Subject: [PATCH] iwlwifi: enable packet injection for iwlagn
MIME-Version: 1.0
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Handle station IDs of transmitted packets when in monitor mode, and
remove the various anti-injection checks from the iwl4965 driver.
This makes injection work on iwl4965 and iwl5000. Tested on both cards.
Note: To inject management frames with encryption, HW crypto support
must be disabled using the "swcrypto=1" modparam (or "swcrypto50=1"
for iwl5000). Otherwise most management frames won't be transmitted.
Signed-off-by: Gábor Stefanik <netrolller.3d@gmail.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
drivers/net/wireless/iwlwifi/iwl-agn.c | 6 ------
drivers/net/wireless/iwlwifi/iwl-sta.c | 5 +++++
drivers/net/wireless/iwlwifi/iwl-tx.c | 13 +++++--------
3 files changed, 10 insertions(+), 14 deletions(-)
diff --git a/drivers/net/wireless/iwlwifi/iwl-agn.c b/drivers/net/wireless/iwlwifi/iwl-agn.c
index ab92e19f0b6c..5cce894dc1f9 100644
--- a/drivers/net/wireless/iwlwifi/iwl-agn.c
+++ b/drivers/net/wireless/iwlwifi/iwl-agn.c
@@ -2722,12 +2722,6 @@ static int iwl4965_mac_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
IWL_DEBUG_MACDUMP("enter\n");
- if (priv->iw_mode == IEEE80211_IF_TYPE_MNTR) {
- IWL_DEBUG_MAC80211("leave - monitor\n");
- dev_kfree_skb_any(skb);
- return 0;
- }
-
IWL_DEBUG_TX("dev->xmit(%d bytes) at rate 0x%02x\n", skb->len,
ieee80211_get_tx_rate(hw, IEEE80211_SKB_CB(skb))->bitrate);
diff --git a/drivers/net/wireless/iwlwifi/iwl-sta.c b/drivers/net/wireless/iwlwifi/iwl-sta.c
index 6283a3a707f5..5b7b05c8773f 100644
--- a/drivers/net/wireless/iwlwifi/iwl-sta.c
+++ b/drivers/net/wireless/iwlwifi/iwl-sta.c
@@ -968,6 +968,11 @@ int iwl_get_sta_id(struct iwl_priv *priv, struct ieee80211_hdr *hdr)
iwl_print_hex_dump(priv, IWL_DL_DROP, (u8 *) hdr, sizeof(*hdr));
return priv->hw_params.bcast_sta_id;
+ /* If we are in monitor mode, use BCAST. This is required for
+ * packet injection. */
+ case IEEE80211_IF_TYPE_MNTR:
+ return priv->hw_params.bcast_sta_id;
+
default:
IWL_WARNING("Unknown mode of operation: %d\n", priv->iw_mode);
return priv->hw_params.bcast_sta_id;
diff --git a/drivers/net/wireless/iwlwifi/iwl-tx.c b/drivers/net/wireless/iwlwifi/iwl-tx.c
index a004cc8ab8f5..452938c299af 100644
--- a/drivers/net/wireless/iwlwifi/iwl-tx.c
+++ b/drivers/net/wireless/iwlwifi/iwl-tx.c
@@ -789,11 +789,6 @@ int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
goto drop_unlock;
}
- if (!priv->vif) {
- IWL_DEBUG_DROP("Dropping - !priv->vif\n");
- goto drop_unlock;
- }
-
if ((ieee80211_get_tx_rate(priv->hw, info)->hw_value & 0xFF) ==
IWL_INVALID_RATE) {
IWL_ERROR("ERROR: No TX rate available.\n");
@@ -815,9 +810,11 @@ int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
/* drop all data frame if we are not associated */
if (ieee80211_is_data(fc) &&
- (!iwl_is_associated(priv) ||
- ((priv->iw_mode == IEEE80211_IF_TYPE_STA) && !priv->assoc_id) ||
- !priv->assoc_station_added)) {
+ (priv->iw_mode != IEEE80211_IF_TYPE_MNTR ||
+ !(info->flags & IEEE80211_TX_CTL_INJECTED)) && /* packet injection */
+ (!iwl_is_associated(priv) ||
+ ((priv->iw_mode == IEEE80211_IF_TYPE_STA) && !priv->assoc_id) ||
+ !priv->assoc_station_added)) {
IWL_DEBUG_DROP("Dropping - !iwl_is_associated\n");
goto drop_unlock;
}