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Diffstat (limited to 'net/ieee80211/ieee80211_tx.c')
-rw-r--r--net/ieee80211/ieee80211_tx.c66
1 files changed, 28 insertions, 38 deletions
diff --git a/net/ieee80211/ieee80211_tx.c b/net/ieee80211/ieee80211_tx.c
index b7ea3e25e25..c9aaff3fea1 100644
--- a/net/ieee80211/ieee80211_tx.c
+++ b/net/ieee80211/ieee80211_tx.c
@@ -45,10 +45,8 @@
#include <net/ieee80211.h>
-
/*
-
802.11 Data Frame
,-------------------------------------------------------------------.
@@ -82,7 +80,6 @@ Desc. | IV | Encrypted | ICV |
`-----------------------'
Total: 8 non-data bytes
-
802.3 Ethernet Data Frame
,-----------------------------------------.
@@ -131,7 +128,7 @@ payload of each frame is reduced to 492 bytes.
static u8 P802_1H_OUI[P80211_OUI_LEN] = { 0x00, 0x00, 0xf8 };
static u8 RFC1042_OUI[P80211_OUI_LEN] = { 0x00, 0x00, 0x00 };
-static inline int ieee80211_put_snap(u8 *data, u16 h_proto)
+static inline int ieee80211_put_snap(u8 * data, u16 h_proto)
{
struct ieee80211_snap_hdr *snap;
u8 *oui;
@@ -149,17 +146,15 @@ static inline int ieee80211_put_snap(u8 *data, u16 h_proto)
snap->oui[1] = oui[1];
snap->oui[2] = oui[2];
- *(u16 *)(data + SNAP_SIZE) = htons(h_proto);
+ *(u16 *) (data + SNAP_SIZE) = htons(h_proto);
return SNAP_SIZE + sizeof(u16);
}
-static inline int ieee80211_encrypt_fragment(
- struct ieee80211_device *ieee,
- struct sk_buff *frag,
- int hdr_len)
+static inline int ieee80211_encrypt_fragment(struct ieee80211_device *ieee,
+ struct sk_buff *frag, int hdr_len)
{
- struct ieee80211_crypt_data* crypt = ieee->crypt[ieee->tx_keyidx];
+ struct ieee80211_crypt_data *crypt = ieee->crypt[ieee->tx_keyidx];
int res;
#ifdef CONFIG_IEEE80211_CRYPT_TKIP
@@ -167,7 +162,7 @@ static inline int ieee80211_encrypt_fragment(
if (ieee->tkip_countermeasures &&
crypt && crypt->ops && strcmp(crypt->ops->name, "TKIP") == 0) {
- header = (struct ieee80211_hdr *) frag->data;
+ header = (struct ieee80211_hdr *)frag->data;
if (net_ratelimit()) {
printk(KERN_DEBUG "%s: TKIP countermeasures: dropped "
"TX packet to " MAC_FMT "\n",
@@ -200,8 +195,8 @@ static inline int ieee80211_encrypt_fragment(
return 0;
}
-
-void ieee80211_txb_free(struct ieee80211_txb *txb) {
+void ieee80211_txb_free(struct ieee80211_txb *txb)
+{
int i;
if (unlikely(!txb))
return;
@@ -216,9 +211,8 @@ static struct ieee80211_txb *ieee80211_alloc_txb(int nr_frags, int txb_size,
{
struct ieee80211_txb *txb;
int i;
- txb = kmalloc(
- sizeof(struct ieee80211_txb) + (sizeof(u8*) * nr_frags),
- gfp_mask);
+ txb = kmalloc(sizeof(struct ieee80211_txb) + (sizeof(u8 *) * nr_frags),
+ gfp_mask);
if (!txb)
return NULL;
@@ -243,8 +237,7 @@ static struct ieee80211_txb *ieee80211_alloc_txb(int nr_frags, int txb_size,
}
/* SKBs are added to the ieee->tx_queue. */
-int ieee80211_xmit(struct sk_buff *skb,
- struct net_device *dev)
+int ieee80211_xmit(struct sk_buff *skb, struct net_device *dev)
{
struct ieee80211_device *ieee = netdev_priv(dev);
struct ieee80211_txb *txb = NULL;
@@ -255,21 +248,20 @@ int ieee80211_xmit(struct sk_buff *skb,
int ether_type, encrypt;
int bytes, fc, hdr_len;
struct sk_buff *skb_frag;
- struct ieee80211_hdr header = { /* Ensure zero initialized */
+ struct ieee80211_hdr header = { /* Ensure zero initialized */
.duration_id = 0,
.seq_ctl = 0
};
u8 dest[ETH_ALEN], src[ETH_ALEN];
- struct ieee80211_crypt_data* crypt;
+ struct ieee80211_crypt_data *crypt;
spin_lock_irqsave(&ieee->lock, flags);
/* If there is no driver handler to take the TXB, dont' bother
* creating it... */
if (!ieee->hard_start_xmit) {
- printk(KERN_WARNING "%s: No xmit handler.\n",
- ieee->dev->name);
+ printk(KERN_WARNING "%s: No xmit handler.\n", ieee->dev->name);
goto success;
}
@@ -284,7 +276,7 @@ int ieee80211_xmit(struct sk_buff *skb,
crypt = ieee->crypt[ieee->tx_keyidx];
encrypt = !(ether_type == ETH_P_PAE && ieee->ieee802_1x) &&
- ieee->host_encrypt && crypt && crypt->ops;
+ ieee->host_encrypt && crypt && crypt->ops;
if (!encrypt && ieee->ieee802_1x &&
ieee->drop_unencrypted && ether_type != ETH_P_PAE) {
@@ -294,7 +286,7 @@ int ieee80211_xmit(struct sk_buff *skb,
/* Save source and destination addresses */
memcpy(&dest, skb->data, ETH_ALEN);
- memcpy(&src, skb->data+ETH_ALEN, ETH_ALEN);
+ memcpy(&src, skb->data + ETH_ALEN, ETH_ALEN);
/* Advance the SKB to the start of the payload */
skb_pull(skb, sizeof(struct ethhdr));
@@ -304,7 +296,7 @@ int ieee80211_xmit(struct sk_buff *skb,
if (encrypt)
fc = IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA |
- IEEE80211_FCTL_PROTECTED;
+ IEEE80211_FCTL_PROTECTED;
else
fc = IEEE80211_FTYPE_DATA | IEEE80211_STYPE_DATA;
@@ -327,8 +319,7 @@ int ieee80211_xmit(struct sk_buff *skb,
/* Determine fragmentation size based on destination (multicast
* and broadcast are not fragmented) */
- if (is_multicast_ether_addr(dest) ||
- is_broadcast_ether_addr(dest))
+ if (is_multicast_ether_addr(dest) || is_broadcast_ether_addr(dest))
frag_size = MAX_FRAG_THRESHOLD;
else
frag_size = ieee->fts;
@@ -345,7 +336,7 @@ int ieee80211_xmit(struct sk_buff *skb,
/* Each fragment may need to have room for encryptiong pre/postfix */
if (encrypt)
bytes_per_frag -= crypt->ops->extra_prefix_len +
- crypt->ops->extra_postfix_len;
+ crypt->ops->extra_postfix_len;
/* Number of fragments is the total bytes_per_frag /
* payload_per_fragment */
@@ -380,19 +371,19 @@ int ieee80211_xmit(struct sk_buff *skb,
/* If this is not the last fragment, then add the MOREFRAGS
* bit to the frame control */
if (i != nr_frags - 1) {
- frag_hdr->frame_ctl = cpu_to_le16(
- fc | IEEE80211_FCTL_MOREFRAGS);
+ frag_hdr->frame_ctl =
+ cpu_to_le16(fc | IEEE80211_FCTL_MOREFRAGS);
bytes = bytes_per_frag;
} else {
/* The last fragment takes the remaining length */
bytes = bytes_last_frag;
}
- /* Put a SNAP header on the first fragment */
+ /* Put a SNAP header on the first fragment */
if (i == 0) {
- ieee80211_put_snap(
- skb_put(skb_frag, SNAP_SIZE + sizeof(u16)),
- ether_type);
+ ieee80211_put_snap(skb_put
+ (skb_frag, SNAP_SIZE + sizeof(u16)),
+ ether_type);
bytes -= SNAP_SIZE + sizeof(u16);
}
@@ -410,14 +401,13 @@ int ieee80211_xmit(struct sk_buff *skb,
skb_put(skb_frag, 4);
}
-
- success:
+ success:
spin_unlock_irqrestore(&ieee->lock, flags);
dev_kfree_skb_any(skb);
if (txb) {
- if ((*ieee->hard_start_xmit)(txb, dev) == 0) {
+ if ((*ieee->hard_start_xmit) (txb, dev) == 0) {
stats->tx_packets++;
stats->tx_bytes += txb->payload_size;
return 0;
@@ -427,7 +417,7 @@ int ieee80211_xmit(struct sk_buff *skb,
return 0;
- failed:
+ failed:
spin_unlock_irqrestore(&ieee->lock, flags);
netif_stop_queue(dev);
stats->tx_errors++;
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-14 03:00:35 +0000