mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-12 05:48:40 +00:00
mac80211 hwsim: verify sta pointers
In analogy with the previous patch to make mac80211-hwsim verify that the virtual interface pointers are correct, this makes it very that it knows about all station structs. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
parent
17741cdc26
commit
81c0652386
1 changed files with 44 additions and 0 deletions
|
@ -52,6 +52,30 @@ static inline void hwsim_clear_magic(struct ieee80211_vif *vif)
|
|||
vp->magic = 0;
|
||||
}
|
||||
|
||||
struct hwsim_sta_priv {
|
||||
u32 magic;
|
||||
};
|
||||
|
||||
#define HWSIM_STA_MAGIC 0x6d537748
|
||||
|
||||
static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta)
|
||||
{
|
||||
struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
|
||||
WARN_ON(sp->magic != HWSIM_VIF_MAGIC);
|
||||
}
|
||||
|
||||
static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta)
|
||||
{
|
||||
struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
|
||||
sp->magic = HWSIM_VIF_MAGIC;
|
||||
}
|
||||
|
||||
static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta)
|
||||
{
|
||||
struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
|
||||
sp->magic = 0;
|
||||
}
|
||||
|
||||
static struct class *hwsim_class;
|
||||
|
||||
static struct ieee80211_hw **hwsim_radios;
|
||||
|
@ -235,6 +259,8 @@ static int mac80211_hwsim_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
|
|||
txi = IEEE80211_SKB_CB(skb);
|
||||
|
||||
hwsim_check_magic(txi->control.vif);
|
||||
if (txi->control.sta)
|
||||
hwsim_check_sta_magic(txi->control.sta);
|
||||
|
||||
memset(&txi->status, 0, sizeof(txi->status));
|
||||
if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK)) {
|
||||
|
@ -394,6 +420,22 @@ static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
|
|||
struct ieee80211_sta *sta)
|
||||
{
|
||||
hwsim_check_magic(vif);
|
||||
switch (cmd) {
|
||||
case STA_NOTIFY_ADD:
|
||||
hwsim_set_sta_magic(sta);
|
||||
break;
|
||||
case STA_NOTIFY_REMOVE:
|
||||
hwsim_clear_sta_magic(sta);
|
||||
break;
|
||||
}
|
||||
}
|
||||
|
||||
static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
|
||||
struct ieee80211_sta *sta,
|
||||
bool set)
|
||||
{
|
||||
hwsim_check_sta_magic(sta);
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct ieee80211_ops mac80211_hwsim_ops =
|
||||
|
@ -408,6 +450,7 @@ static const struct ieee80211_ops mac80211_hwsim_ops =
|
|||
.config_interface = mac80211_hwsim_config_interface,
|
||||
.bss_info_changed = mac80211_hwsim_bss_info_changed,
|
||||
.sta_notify = mac80211_hwsim_sta_notify,
|
||||
.set_tim = mac80211_hwsim_set_tim,
|
||||
};
|
||||
|
||||
|
||||
|
@ -510,6 +553,7 @@ static int __init init_mac80211_hwsim(void)
|
|||
|
||||
/* ask mac80211 to reserve space for magic */
|
||||
hw->vif_data_size = sizeof(struct hwsim_vif_priv);
|
||||
hw->sta_data_size = sizeof(struct hwsim_sta_priv);
|
||||
|
||||
memcpy(data->channels, hwsim_channels, sizeof(hwsim_channels));
|
||||
memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
|
||||
|
|
Loading…
Reference in a new issue