summaryrefslogtreecommitdiff
path: root/net/mac80211
diff options
context:
space:
mode:
Diffstat (limited to 'net/mac80211')
-rw-r--r--net/mac80211/ieee80211_i.h2
-rw-r--r--net/mac80211/rx.c80
-rw-r--r--net/mac80211/wep.c8
-rw-r--r--net/mac80211/wpa.c25
4 files changed, 61 insertions, 54 deletions
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index b7598db5ade2..c612981fc23e 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -167,12 +167,10 @@ typedef unsigned __bitwise__ ieee80211_rx_result;
struct ieee80211_rx_data {
struct sk_buff *skb;
- struct net_device *dev;
struct ieee80211_local *local;
struct ieee80211_sub_if_data *sdata;
struct sta_info *sta;
struct ieee80211_key *key;
- struct ieee80211_rx_status *status;
struct ieee80211_rate *rate;
unsigned int flags;
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 37e9891605b4..904aaea081c8 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -477,7 +477,7 @@ ieee80211_rx_mesh_check(struct ieee80211_rx_data *rx)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data;
unsigned int hdrlen = ieee80211_hdrlen(hdr->frame_control);
- char *dev_addr = rx->dev->dev_addr;
+ char *dev_addr = rx->sdata->dev->dev_addr;
if (ieee80211_is_data(hdr->frame_control)) {
if (is_multicast_ether_addr(hdr->addr1)) {
@@ -591,7 +591,9 @@ ieee80211_rx_h_check(struct ieee80211_rx_data *rx)
static ieee80211_rx_result debug_noinline
ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx)
{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data;
+ struct sk_buff *skb = rx->skb;
+ struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
int keyidx;
int hdrlen;
ieee80211_rx_result result = RX_DROP_UNUSABLE;
@@ -645,8 +647,8 @@ ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx)
return RX_CONTINUE;
} else if (mmie_keyidx >= 0) {
/* Broadcast/multicast robust management frame / BIP */
- if ((rx->status->flag & RX_FLAG_DECRYPTED) &&
- (rx->status->flag & RX_FLAG_IV_STRIPPED))
+ if ((status->flag & RX_FLAG_DECRYPTED) &&
+ (status->flag & RX_FLAG_IV_STRIPPED))
return RX_CONTINUE;
if (mmie_keyidx < NUM_DEFAULT_KEYS ||
@@ -678,8 +680,8 @@ ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx)
* we somehow allow the driver to tell us which key
* the hardware used if this flag is set?
*/
- if ((rx->status->flag & RX_FLAG_DECRYPTED) &&
- (rx->status->flag & RX_FLAG_IV_STRIPPED))
+ if ((status->flag & RX_FLAG_DECRYPTED) &&
+ (status->flag & RX_FLAG_IV_STRIPPED))
return RX_CONTINUE;
hdrlen = ieee80211_hdrlen(hdr->frame_control);
@@ -715,8 +717,8 @@ ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx)
/* Check for weak IVs if possible */
if (rx->sta && rx->key->conf.alg == ALG_WEP &&
ieee80211_is_data(hdr->frame_control) &&
- (!(rx->status->flag & RX_FLAG_IV_STRIPPED) ||
- !(rx->status->flag & RX_FLAG_DECRYPTED)) &&
+ (!(status->flag & RX_FLAG_IV_STRIPPED) ||
+ !(status->flag & RX_FLAG_DECRYPTED)) &&
ieee80211_wep_is_weak_iv(rx->skb, rx->key))
rx->sta->wep_weak_iv_count++;
@@ -736,7 +738,7 @@ ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx)
}
/* either the frame has been decrypted or will be dropped */
- rx->status->flag |= RX_FLAG_DECRYPTED;
+ status->flag |= RX_FLAG_DECRYPTED;
return result;
}
@@ -816,7 +818,9 @@ static ieee80211_rx_result debug_noinline
ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx)
{
struct sta_info *sta = rx->sta;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data;
+ struct sk_buff *skb = rx->skb;
+ struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
if (!sta)
return RX_CONTINUE;
@@ -847,8 +851,8 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx)
sta->rx_fragments++;
sta->rx_bytes += rx->skb->len;
- sta->last_signal = rx->status->signal;
- sta->last_noise = rx->status->noise;
+ sta->last_signal = status->signal;
+ sta->last_noise = status->noise;
/*
* Change STA power saving mode only at the end of a frame
@@ -1140,11 +1144,14 @@ ieee80211_802_1x_port_control(struct ieee80211_rx_data *rx)
static int
ieee80211_drop_unencrypted(struct ieee80211_rx_data *rx, __le16 fc)
{
+ struct sk_buff *skb = rx->skb;
+ struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
+
/*
* Pass through unencrypted frames if the hardware has
* decrypted them already.
*/
- if (rx->status->flag & RX_FLAG_DECRYPTED)
+ if (status->flag & RX_FLAG_DECRYPTED)
return 0;
/* Drop unencrypted frames if key is set. */
@@ -1178,8 +1185,8 @@ ieee80211_drop_unencrypted(struct ieee80211_rx_data *rx, __le16 fc)
static int
__ieee80211_data_to_8023(struct ieee80211_rx_data *rx)
{
- struct net_device *dev = rx->dev;
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ struct ieee80211_sub_if_data *sdata = rx->sdata;
+ struct net_device *dev = sdata->dev;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data;
if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN && !sdata->use_4addr &&
@@ -1205,7 +1212,7 @@ static bool ieee80211_frame_allowed(struct ieee80211_rx_data *rx, __le16 fc)
* of whether the frame was encrypted or not.
*/
if (ehdr->h_proto == htons(ETH_P_PAE) &&
- (compare_ether_addr(ehdr->h_dest, rx->dev->dev_addr) == 0 ||
+ (compare_ether_addr(ehdr->h_dest, rx->sdata->dev->dev_addr) == 0 ||
compare_ether_addr(ehdr->h_dest, pae_group_addr) == 0))
return true;
@@ -1222,10 +1229,10 @@ static bool ieee80211_frame_allowed(struct ieee80211_rx_data *rx, __le16 fc)
static void
ieee80211_deliver_skb(struct ieee80211_rx_data *rx)
{
- struct net_device *dev = rx->dev;
+ struct ieee80211_sub_if_data *sdata = rx->sdata;
+ struct net_device *dev = sdata->dev;
struct ieee80211_local *local = rx->local;
struct sk_buff *skb, *xmit_skb;
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ethhdr *ehdr = (struct ethhdr *) rx->skb->data;
struct sta_info *dsta;
@@ -1306,7 +1313,7 @@ ieee80211_deliver_skb(struct ieee80211_rx_data *rx)
static ieee80211_rx_result debug_noinline
ieee80211_rx_h_amsdu(struct ieee80211_rx_data *rx)
{
- struct net_device *dev = rx->dev;
+ struct net_device *dev = rx->sdata->dev;
struct ieee80211_local *local = rx->local;
u16 ethertype;
u8 *payload;
@@ -1431,12 +1438,11 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
unsigned int hdrlen;
struct sk_buff *skb = rx->skb, *fwd_skb;
struct ieee80211_local *local = rx->local;
- struct ieee80211_sub_if_data *sdata;
+ struct ieee80211_sub_if_data *sdata = rx->sdata;
hdr = (struct ieee80211_hdr *) skb->data;
hdrlen = ieee80211_hdrlen(hdr->frame_control);
mesh_hdr = (struct ieee80211s_hdr *) (skb->data + hdrlen);
- sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev);
if (!ieee80211_is_data(hdr->frame_control))
return RX_CONTINUE;
@@ -1474,7 +1480,7 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
/* Frame has reached destination. Don't forward */
if (!is_multicast_ether_addr(hdr->addr1) &&
- compare_ether_addr(rx->dev->dev_addr, hdr->addr3) == 0)
+ compare_ether_addr(sdata->dev->dev_addr, hdr->addr3) == 0)
return RX_CONTINUE;
mesh_hdr->ttl--;
@@ -1491,10 +1497,10 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
if (!fwd_skb && net_ratelimit())
printk(KERN_DEBUG "%s: failed to clone mesh frame\n",
- rx->dev->name);
+ sdata->dev->name);
fwd_hdr = (struct ieee80211_hdr *) fwd_skb->data;
- memcpy(fwd_hdr->addr2, rx->dev->dev_addr, ETH_ALEN);
+ memcpy(fwd_hdr->addr2, sdata->dev->dev_addr, ETH_ALEN);
info = IEEE80211_SKB_CB(fwd_skb);
memset(info, 0, sizeof(*info));
info->flags |= IEEE80211_TX_INTFL_NEED_TXPROCESSING;
@@ -1528,7 +1534,7 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
}
if (is_multicast_ether_addr(hdr->addr1) ||
- rx->dev->flags & IFF_PROMISC)
+ sdata->dev->flags & IFF_PROMISC)
return RX_CONTINUE;
else
return RX_DROP_MONITOR;
@@ -1538,9 +1544,9 @@ ieee80211_rx_h_mesh_fwding(struct ieee80211_rx_data *rx)
static ieee80211_rx_result debug_noinline
ieee80211_rx_h_data(struct ieee80211_rx_data *rx)
{
- struct net_device *dev = rx->dev;
+ struct ieee80211_sub_if_data *sdata = rx->sdata;
+ struct net_device *dev = sdata->dev;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data;
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
__le16 fc = hdr->frame_control;
int err;
@@ -1664,7 +1670,7 @@ static ieee80211_rx_result debug_noinline
ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
{
struct ieee80211_local *local = rx->local;
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev);
+ struct ieee80211_sub_if_data *sdata = rx->sdata;
struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *) rx->skb->data;
int len = rx->skb->len;
@@ -1776,7 +1782,7 @@ ieee80211_rx_h_action(struct ieee80211_rx_data *rx)
static ieee80211_rx_result debug_noinline
ieee80211_rx_h_mgmt(struct ieee80211_rx_data *rx)
{
- struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(rx->dev);
+ struct ieee80211_sub_if_data *sdata = rx->sdata;
struct ieee80211_mgmt *mgmt = (struct ieee80211_mgmt *) rx->skb->data;
if (!(rx->flags & IEEE80211_RX_RA_MATCH))
@@ -1852,7 +1858,7 @@ static void ieee80211_rx_cooked_monitor(struct ieee80211_rx_data *rx)
} __attribute__ ((packed)) *rthdr;
struct sk_buff *skb = rx->skb, *skb2;
struct net_device *prev_dev = NULL;
- struct ieee80211_rx_status *status = rx->status;
+ struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
if (rx->flags & IEEE80211_RX_CMNTR_REPORTED)
goto out_free_skb;
@@ -1928,7 +1934,6 @@ static void ieee80211_invoke_rx_handlers(struct ieee80211_sub_if_data *sdata,
rx->skb = skb;
rx->sdata = sdata;
- rx->dev = sdata->dev;
#define CALL_RXH(rxh) \
do { \
@@ -1987,7 +1992,9 @@ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
struct ieee80211_rx_data *rx,
struct ieee80211_hdr *hdr)
{
- u8 *bssid = ieee80211_get_bssid(hdr, rx->skb->len, sdata->vif.type);
+ struct sk_buff *skb = rx->skb;
+ struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
+ u8 *bssid = ieee80211_get_bssid(hdr, skb->len, sdata->vif.type);
int multicast = is_multicast_ether_addr(hdr->addr1);
switch (sdata->vif.type) {
@@ -2019,10 +2026,10 @@ static int prepare_for_handlers(struct ieee80211_sub_if_data *sdata,
rx->flags &= ~IEEE80211_RX_RA_MATCH;
} else if (!rx->sta) {
int rate_idx;
- if (rx->status->flag & RX_FLAG_HT)
+ if (status->flag & RX_FLAG_HT)
rate_idx = 0; /* TODO: HT rates */
else
- rate_idx = rx->status->rate_idx;
+ rate_idx = status->rate_idx;
rx->sta = ieee80211_ibss_add_sta(sdata, bssid, hdr->addr2,
BIT(rate_idx));
}
@@ -2088,7 +2095,6 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw,
memset(&rx, 0, sizeof(rx));
rx.skb = skb;
rx.local = local;
- rx.status = status;
rx.rate = rate;
if (ieee80211_is_data(hdr->frame_control) || ieee80211_is_mgmt(hdr->frame_control))
@@ -2102,10 +2108,8 @@ static void __ieee80211_rx_handle_packet(struct ieee80211_hw *hw,
ieee80211_verify_alignment(&rx);
rx.sta = sta_info_get(local, hdr->addr2);
- if (rx.sta) {
+ if (rx.sta)
rx.sdata = rx.sta->sdata;
- rx.dev = rx.sta->sdata->dev;
- }
if (rx.sdata && ieee80211_is_data(hdr->frame_control)) {
rx.flags |= IEEE80211_RX_RA_MATCH;
diff --git a/net/mac80211/wep.c b/net/mac80211/wep.c
index 8a980f136941..247123fe1a7a 100644
--- a/net/mac80211/wep.c
+++ b/net/mac80211/wep.c
@@ -281,16 +281,18 @@ bool ieee80211_wep_is_weak_iv(struct sk_buff *skb, struct ieee80211_key *key)
ieee80211_rx_result
ieee80211_crypto_wep_decrypt(struct ieee80211_rx_data *rx)
{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data;
+ struct sk_buff *skb = rx->skb;
+ struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
if (!ieee80211_is_data(hdr->frame_control) &&
!ieee80211_is_auth(hdr->frame_control))
return RX_CONTINUE;
- if (!(rx->status->flag & RX_FLAG_DECRYPTED)) {
+ if (!(status->flag & RX_FLAG_DECRYPTED)) {
if (ieee80211_wep_decrypt(rx->local, rx->skb, rx->key))
return RX_DROP_UNUSABLE;
- } else if (!(rx->status->flag & RX_FLAG_IV_STRIPPED)) {
+ } else if (!(status->flag & RX_FLAG_IV_STRIPPED)) {
ieee80211_wep_remove_iv(rx->local, rx->skb, rx->key);
/* remove ICV */
skb_trim(rx->skb, rx->skb->len - WEP_ICV_LEN);
diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c
index 70778694877b..5332014cb229 100644
--- a/net/mac80211/wpa.c
+++ b/net/mac80211/wpa.c
@@ -85,16 +85,16 @@ ieee80211_rx_h_michael_mic_verify(struct ieee80211_rx_data *rx)
u8 *data, *key = NULL, key_offset;
size_t data_len;
unsigned int hdrlen;
- struct ieee80211_hdr *hdr;
u8 mic[MICHAEL_MIC_LEN];
struct sk_buff *skb = rx->skb;
+ struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
int authenticator = 1, wpa_test = 0;
/* No way to verify the MIC if the hardware stripped it */
- if (rx->status->flag & RX_FLAG_MMIC_STRIPPED)
+ if (status->flag & RX_FLAG_MMIC_STRIPPED)
return RX_CONTINUE;
- hdr = (struct ieee80211_hdr *)skb->data;
if (!rx->key || rx->key->conf.alg != ALG_TKIP ||
!ieee80211_has_protected(hdr->frame_control) ||
!ieee80211_is_data_present(hdr->frame_control))
@@ -216,6 +216,7 @@ ieee80211_crypto_tkip_decrypt(struct ieee80211_rx_data *rx)
int hdrlen, res, hwaccel = 0, wpa_test = 0;
struct ieee80211_key *key = rx->key;
struct sk_buff *skb = rx->skb;
+ struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
hdrlen = ieee80211_hdrlen(hdr->frame_control);
@@ -225,8 +226,8 @@ ieee80211_crypto_tkip_decrypt(struct ieee80211_rx_data *rx)
if (!rx->sta || skb->len - hdrlen < 12)
return RX_DROP_UNUSABLE;
- if (rx->status->flag & RX_FLAG_DECRYPTED) {
- if (rx->status->flag & RX_FLAG_IV_STRIPPED) {
+ if (status->flag & RX_FLAG_DECRYPTED) {
+ if (status->flag & RX_FLAG_IV_STRIPPED) {
/*
* Hardware took care of all processing, including
* replay protection, and stripped the ICV/IV so
@@ -442,6 +443,7 @@ ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx)
int hdrlen;
struct ieee80211_key *key = rx->key;
struct sk_buff *skb = rx->skb;
+ struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
u8 pn[CCMP_PN_LEN];
int data_len;
@@ -455,8 +457,8 @@ ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx)
if (!rx->sta || data_len < 0)
return RX_DROP_UNUSABLE;
- if ((rx->status->flag & RX_FLAG_DECRYPTED) &&
- (rx->status->flag & RX_FLAG_IV_STRIPPED))
+ if ((status->flag & RX_FLAG_DECRYPTED) &&
+ (status->flag & RX_FLAG_IV_STRIPPED))
return RX_CONTINUE;
ccmp_hdr2pn(pn, skb->data + hdrlen);
@@ -466,7 +468,7 @@ ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx)
return RX_DROP_UNUSABLE;
}
- if (!(rx->status->flag & RX_FLAG_DECRYPTED)) {
+ if (!(status->flag & RX_FLAG_DECRYPTED)) {
/* hardware didn't decrypt/verify MIC */
ccmp_special_blocks(skb, pn, key->u.ccmp.rx_crypto_buf, 1);
@@ -563,6 +565,7 @@ ieee80211_rx_result
ieee80211_crypto_aes_cmac_decrypt(struct ieee80211_rx_data *rx)
{
struct sk_buff *skb = rx->skb;
+ struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
struct ieee80211_key *key = rx->key;
struct ieee80211_mmie *mmie;
u8 aad[20], mic[8], ipn[6];
@@ -571,8 +574,8 @@ ieee80211_crypto_aes_cmac_decrypt(struct ieee80211_rx_data *rx)
if (!ieee80211_is_mgmt(hdr->frame_control))
return RX_CONTINUE;
- if ((rx->status->flag & RX_FLAG_DECRYPTED) &&
- (rx->status->flag & RX_FLAG_IV_STRIPPED))
+ if ((status->flag & RX_FLAG_DECRYPTED) &&
+ (status->flag & RX_FLAG_IV_STRIPPED))
return RX_CONTINUE;
if (skb->len < 24 + sizeof(*mmie))
@@ -591,7 +594,7 @@ ieee80211_crypto_aes_cmac_decrypt(struct ieee80211_rx_data *rx)
return RX_DROP_UNUSABLE;
}
- if (!(rx->status->flag & RX_FLAG_DECRYPTED)) {
+ if (!(status->flag & RX_FLAG_DECRYPTED)) {
/* hardware didn't decrypt/verify MIC */
bip_aad(skb, aad);
ieee80211_aes_cmac(key->u.aes_cmac.tfm,
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 17:44:56 +0000