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yaml
---
r: 66783
b: refs/heads/master
c: 6a22a59
h: refs/heads/master
i:
  66781: 09d00f6
  66779: 6b40757
  66775: c40e7e0
  66767: 397ac6b
  66751: f4e184b
v: v3
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Johannes Berg authored and David S. Miller committed Oct 10, 2007
1 parent 7fff6b9 commit 757c446
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Showing 6 changed files with 78 additions and 62 deletions.
2 changes: 1 addition & 1 deletion [refs]
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Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: 4f0d18e26f8bc4c6507b69aa0080d0fae807c990
refs/heads/master: 6a22a59d487e7fe509b457b72497593e402911c0
62 changes: 15 additions & 47 deletions trunk/net/mac80211/tx.c
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Original file line number Diff line number Diff line change
Expand Up @@ -541,56 +541,26 @@ ieee80211_tx_h_fragment(struct ieee80211_txrx_data *tx)
return TXRX_DROP;
}

static int wep_encrypt_skb(struct ieee80211_txrx_data *tx, struct sk_buff *skb)
{
if (!(tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) {
if (ieee80211_wep_encrypt(tx->local, skb, tx->key))
return -1;
} else {
tx->u.tx.control->key_idx = tx->key->conf.hw_key_idx;
if (tx->key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV) {
if (!ieee80211_wep_add_iv(tx->local, skb, tx->key))
return -1;
}
}
return 0;
}

static ieee80211_txrx_result
ieee80211_tx_h_wep_encrypt(struct ieee80211_txrx_data *tx)
ieee80211_tx_h_encrypt(struct ieee80211_txrx_data *tx)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
u16 fc;

fc = le16_to_cpu(hdr->frame_control);

if (!tx->key || tx->key->conf.alg != ALG_WEP ||
((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA &&
((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT ||
(fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_AUTH)))
if (!tx->key)
return TXRX_CONTINUE;

tx->u.tx.control->iv_len = WEP_IV_LEN;
tx->u.tx.control->icv_len = WEP_ICV_LEN;
ieee80211_tx_set_iswep(tx);

if (wep_encrypt_skb(tx, tx->skb) < 0) {
I802_DEBUG_INC(tx->local->tx_handlers_drop_wep);
return TXRX_DROP;
}

if (tx->u.tx.extra_frag) {
int i;
for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
if (wep_encrypt_skb(tx, tx->u.tx.extra_frag[i]) < 0) {
I802_DEBUG_INC(tx->local->
tx_handlers_drop_wep);
return TXRX_DROP;
}
}
switch (tx->key->conf.alg) {
case ALG_WEP:
return ieee80211_crypto_wep_encrypt(tx);
case ALG_TKIP:
return ieee80211_crypto_tkip_encrypt(tx);
case ALG_CCMP:
return ieee80211_crypto_ccmp_encrypt(tx);
case ALG_NONE:
return TXRX_CONTINUE;
}

return TXRX_CONTINUE;
/* not reached */
WARN_ON(1);
return TXRX_DROP;
}

static ieee80211_txrx_result
Expand Down Expand Up @@ -805,9 +775,7 @@ ieee80211_tx_handler ieee80211_tx_handlers[] =
ieee80211_tx_h_select_key,
ieee80211_tx_h_michael_mic_add,
ieee80211_tx_h_fragment,
ieee80211_tx_h_tkip_encrypt,
ieee80211_tx_h_ccmp_encrypt,
ieee80211_tx_h_wep_encrypt,
ieee80211_tx_h_encrypt,
ieee80211_tx_h_rate_ctrl,
ieee80211_tx_h_misc,
ieee80211_tx_h_load_stats,
Expand Down
57 changes: 54 additions & 3 deletions trunk/net/mac80211/wep.c
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Original file line number Diff line number Diff line change
Expand Up @@ -80,9 +80,9 @@ static void ieee80211_wep_get_iv(struct ieee80211_local *local,
}


u8 * ieee80211_wep_add_iv(struct ieee80211_local *local,
struct sk_buff *skb,
struct ieee80211_key *key)
static u8 *ieee80211_wep_add_iv(struct ieee80211_local *local,
struct sk_buff *skb,
struct ieee80211_key *key)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
u16 fc;
Expand Down Expand Up @@ -350,3 +350,54 @@ ieee80211_crypto_wep_decrypt(struct ieee80211_txrx_data *rx)

return TXRX_CONTINUE;
}

static int wep_encrypt_skb(struct ieee80211_txrx_data *tx, struct sk_buff *skb)
{
if (!(tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) {
if (ieee80211_wep_encrypt(tx->local, skb, tx->key))
return -1;
} else {
tx->u.tx.control->key_idx = tx->key->conf.hw_key_idx;
if (tx->key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV) {
if (!ieee80211_wep_add_iv(tx->local, skb, tx->key))
return -1;
}
}
return 0;
}

ieee80211_txrx_result
ieee80211_crypto_wep_encrypt(struct ieee80211_txrx_data *tx)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
u16 fc;

fc = le16_to_cpu(hdr->frame_control);

if (((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA &&
((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT ||
(fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_AUTH)))
return TXRX_CONTINUE;

tx->u.tx.control->iv_len = WEP_IV_LEN;
tx->u.tx.control->icv_len = WEP_ICV_LEN;
ieee80211_tx_set_iswep(tx);

if (wep_encrypt_skb(tx, tx->skb) < 0) {
I802_DEBUG_INC(tx->local->tx_handlers_drop_wep);
return TXRX_DROP;
}

if (tx->u.tx.extra_frag) {
int i;
for (i = 0; i < tx->u.tx.num_extra_frag; i++) {
if (wep_encrypt_skb(tx, tx->u.tx.extra_frag[i]) < 0) {
I802_DEBUG_INC(tx->local->
tx_handlers_drop_wep);
return TXRX_DROP;
}
}
}

return TXRX_CONTINUE;
}
5 changes: 2 additions & 3 deletions trunk/net/mac80211/wep.h
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Original file line number Diff line number Diff line change
Expand Up @@ -18,9 +18,6 @@

int ieee80211_wep_init(struct ieee80211_local *local);
void ieee80211_wep_free(struct ieee80211_local *local);
u8 * ieee80211_wep_add_iv(struct ieee80211_local *local,
struct sk_buff *skb,
struct ieee80211_key *key);
void ieee80211_wep_encrypt_data(struct crypto_blkcipher *tfm, u8 *rc4key,
size_t klen, u8 *data, size_t data_len);
int ieee80211_wep_decrypt_data(struct crypto_blkcipher *tfm, u8 *rc4key,
Expand All @@ -34,5 +31,7 @@ u8 * ieee80211_wep_is_weak_iv(struct sk_buff *skb, struct ieee80211_key *key);

ieee80211_txrx_result
ieee80211_crypto_wep_decrypt(struct ieee80211_txrx_data *rx);
ieee80211_txrx_result
ieee80211_crypto_wep_encrypt(struct ieee80211_txrx_data *tx);

#endif /* WEP_H */
10 changes: 4 additions & 6 deletions trunk/net/mac80211/wpa.c
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Original file line number Diff line number Diff line change
Expand Up @@ -239,17 +239,16 @@ static int tkip_encrypt_skb(struct ieee80211_txrx_data *tx,


ieee80211_txrx_result
ieee80211_tx_h_tkip_encrypt(struct ieee80211_txrx_data *tx)
ieee80211_crypto_tkip_encrypt(struct ieee80211_txrx_data *tx)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
u16 fc;
struct ieee80211_key *key = tx->key;
struct sk_buff *skb = tx->skb;
int wpa_test = 0, test = 0;

fc = le16_to_cpu(hdr->frame_control);

if (!key || key->conf.alg != ALG_TKIP || !WLAN_FC_DATA_PRESENT(fc))
if (!WLAN_FC_DATA_PRESENT(fc))
return TXRX_CONTINUE;

tx->u.tx.control->icv_len = TKIP_ICV_LEN;
Expand Down Expand Up @@ -491,17 +490,16 @@ static int ccmp_encrypt_skb(struct ieee80211_txrx_data *tx,


ieee80211_txrx_result
ieee80211_tx_h_ccmp_encrypt(struct ieee80211_txrx_data *tx)
ieee80211_crypto_ccmp_encrypt(struct ieee80211_txrx_data *tx)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
struct ieee80211_key *key = tx->key;
u16 fc;
struct sk_buff *skb = tx->skb;
int test = 0;

fc = le16_to_cpu(hdr->frame_control);

if (!key || key->conf.alg != ALG_CCMP || !WLAN_FC_DATA_PRESENT(fc))
if (!WLAN_FC_DATA_PRESENT(fc))
return TXRX_CONTINUE;

tx->u.tx.control->icv_len = CCMP_MIC_LEN;
Expand Down
4 changes: 2 additions & 2 deletions trunk/net/mac80211/wpa.h
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Original file line number Diff line number Diff line change
Expand Up @@ -19,12 +19,12 @@ ieee80211_txrx_result
ieee80211_rx_h_michael_mic_verify(struct ieee80211_txrx_data *rx);

ieee80211_txrx_result
ieee80211_tx_h_tkip_encrypt(struct ieee80211_txrx_data *tx);
ieee80211_crypto_tkip_encrypt(struct ieee80211_txrx_data *tx);
ieee80211_txrx_result
ieee80211_crypto_tkip_decrypt(struct ieee80211_txrx_data *rx);

ieee80211_txrx_result
ieee80211_tx_h_ccmp_encrypt(struct ieee80211_txrx_data *tx);
ieee80211_crypto_ccmp_encrypt(struct ieee80211_txrx_data *tx);
ieee80211_txrx_result
ieee80211_crypto_ccmp_decrypt(struct ieee80211_txrx_data *rx);

Expand Down

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