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iwlwifi: Make injection of non-broadcast frames work again

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Commit 1ccb84d87d04df3c76cd4352fe69786d8c7cf016 by Wey-Yi Guy
("iwlwifi: clean up unused NL80211_IFTYPE_MONITOR for Monitor mode")
broke injection of non-broadcast frames to unassociated stations
(causing a SYSASSERT for all such injected frames), due to injected
frames no longer automatically getting a broadcast station ID assigned.
This patch restores the old behavior, fixing the aforementioned
regression.

Also, consistently check for IEEE80211_TX_CTL_INJECTED instead of
iwl_is_monitor_mode in the TX path, as TX_CTL_INJECTED specifically
means that a given packet is coming from a monitor interface, while
iwl_is_monitor_mode only shows whether a monitor interface exists
on the device.

Signed-off-by: Gábor Stefanik <netrolller.3d@gmail.com>
Acked-by: Reinette Chatre <reinette.chatre@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Gábor Stefanik 2009-08-21 20:44:09 +02:00 committed by John W. Linville
parent 9d45368a38
commit aa065263ec
2 changed files with 12 additions and 7 deletions
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10
drivers/net/wireless/iwlwifi/iwl-tx.c
View file

@ -718,10 +718,9 @@ int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
IWL_DEBUG_TX(priv, "Sending REASSOC frame\n");
#endif
/* drop all data frame if we are not associated */
/* drop all non-injected data frame if we are not associated */
if (ieee80211_is_data(fc) &&
(!iwl_is_monitor_mode(priv) ||
!(info->flags & IEEE80211_TX_CTL_INJECTED)) && /* packet injection */
!(info->flags & IEEE80211_TX_CTL_INJECTED) &&
(!iwl_is_associated(priv) ||
((priv->iw_mode == NL80211_IFTYPE_STATION) && !priv->assoc_id) ||
!priv->assoc_station_added)) {
@ -732,7 +731,10 @@ int iwl_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
hdr_len = ieee80211_hdrlen(fc);
/* Find (or create) index into station table for destination station */
sta_id = iwl_get_sta_id(priv, hdr);
if (info->flags & IEEE80211_TX_CTL_INJECTED)
sta_id = priv->hw_params.bcast_sta_id;
else
sta_id = iwl_get_sta_id(priv, hdr);
if (sta_id == IWL_INVALID_STATION) {
IWL_DEBUG_DROP(priv, "Dropping - INVALID STATION: %pM\n",
hdr->addr1);

9
drivers/net/wireless/iwlwifi/iwl3945-base.c
View file

@ -518,9 +518,9 @@ static int iwl3945_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
IWL_DEBUG_TX(priv, "Sending REASSOC frame\n");
#endif
/* drop all data frame if we are not associated */
/* drop all non-injected data frame if we are not associated */
if (ieee80211_is_data(fc) &&
(!iwl_is_monitor_mode(priv)) && /* packet injection */
!(info->flags & IEEE80211_TX_CTL_INJECTED) &&
(!iwl_is_associated(priv) ||
((priv->iw_mode == NL80211_IFTYPE_STATION) && !priv->assoc_id))) {
IWL_DEBUG_DROP(priv, "Dropping - !iwl_is_associated\n");
@ -532,7 +532,10 @@ static int iwl3945_tx_skb(struct iwl_priv *priv, struct sk_buff *skb)
hdr_len = ieee80211_hdrlen(fc);
/* Find (or create) index into station table for destination station */
sta_id = iwl_get_sta_id(priv, hdr);
if (info->flags & IEEE80211_TX_CTL_INJECTED)
sta_id = priv->hw_params.bcast_sta_id;
else
sta_id = iwl_get_sta_id(priv, hdr);
if (sta_id == IWL_INVALID_STATION) {
IWL_DEBUG_DROP(priv, "Dropping - INVALID STATION: %pM\n",
hdr->addr1);