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wireless: move crypto constants to ieee80211.h

Browse Source 
mac80211 and the Intel drivers all define crypto
constants, move them to ieee80211.h instead.

Reviewed-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg 2013-05-08 13:09:08 +02:00
parent 04a161f460
commit 4325f6caad
10 changed files with 96 additions and 108 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/net/wireless/iwlegacy/commands.h
View File

@ -1347,14 +1347,6 @@ struct il_rx_mpdu_res_start {
#define TX_CMD_SEC_SHIFT 6 #define TX_CMD_SEC_SHIFT 6
#define TX_CMD_SEC_KEY128 0x08 #define TX_CMD_SEC_KEY128 0x08
/*
* security overhead sizes
*/
#define WEP_IV_LEN 4
#define WEP_ICV_LEN 4
#define CCMP_MIC_LEN 8
#define TKIP_ICV_LEN 4
/* /*
* C_TX = 0x1c (command) * C_TX = 0x1c (command)
*/ */

8
drivers/net/wireless/iwlwifi/dvm/commands.h
View File

@ -1224,14 +1224,6 @@ struct iwl_rx_mpdu_res_start {
#define TX_CMD_SEC_SHIFT 6 #define TX_CMD_SEC_SHIFT 6
#define TX_CMD_SEC_KEY128 0x08 #define TX_CMD_SEC_KEY128 0x08
/*
* security overhead sizes
*/
#define WEP_IV_LEN 4
#define WEP_ICV_LEN 4
#define CCMP_MIC_LEN 8
#define TKIP_ICV_LEN 4
/* /*
* REPLY_TX = 0x1c (command) * REPLY_TX = 0x1c (command)
*/ */

6
drivers/net/wireless/iwlwifi/pcie/tx.c
View File

@ -224,13 +224,13 @@ static void iwl_pcie_txq_update_byte_cnt_tbl(struct iwl_trans *trans,
switch (sec_ctl & TX_CMD_SEC_MSK) { switch (sec_ctl & TX_CMD_SEC_MSK) {
case TX_CMD_SEC_CCM: case TX_CMD_SEC_CCM:
len += CCMP_MIC_LEN; len += IEEE80211_CCMP_MIC_LEN;
break; break;
case TX_CMD_SEC_TKIP: case TX_CMD_SEC_TKIP:
len += TKIP_ICV_LEN; len += IEEE80211_TKIP_ICV_LEN;
break; break;
case TX_CMD_SEC_WEP: case TX_CMD_SEC_WEP:
len += WEP_IV_LEN + WEP_ICV_LEN; len += IEEE80211_WEP_IV_LEN + IEEE80211_WEP_ICV_LEN;
break; break;
} }

9
include/linux/ieee80211.h
View File

@ -1829,6 +1829,15 @@ enum ieee80211_key_len {
WLAN_KEY_LEN_AES_CMAC = 16, WLAN_KEY_LEN_AES_CMAC = 16,
}; };
#define IEEE80211_WEP_IV_LEN 4
#define IEEE80211_WEP_ICV_LEN 4
#define IEEE80211_CCMP_HDR_LEN 8
#define IEEE80211_CCMP_MIC_LEN 8
#define IEEE80211_CCMP_PN_LEN 6
#define IEEE80211_TKIP_IV_LEN 8
#define IEEE80211_TKIP_ICV_LEN 4
#define IEEE80211_CMAC_PN_LEN 6
/* Public action codes */ /* Public action codes */
enum ieee80211_pub_actioncode { enum ieee80211_pub_actioncode {
WLAN_PUB_ACTION_EXT_CHANSW_ANN = 4, WLAN_PUB_ACTION_EXT_CHANSW_ANN = 4,

6
net/mac80211/aes_ccm.c
View File

@ -85,7 +85,7 @@ void ieee80211_aes_ccm_encrypt(struct crypto_cipher *tfm, u8 *scratch,
*cpos++ = *pos++ ^ e[i]; *cpos++ = *pos++ ^ e[i];
} }
for (i = 0; i < CCMP_MIC_LEN; i++) for (i = 0; i < IEEE80211_CCMP_MIC_LEN; i++)
mic[i] = b[i] ^ s_0[i]; mic[i] = b[i] ^ s_0[i];
} }
@ -123,7 +123,7 @@ int ieee80211_aes_ccm_decrypt(struct crypto_cipher *tfm, u8 *scratch,
crypto_cipher_encrypt_one(tfm, a, a); crypto_cipher_encrypt_one(tfm, a, a);
} }
for (i = 0; i < CCMP_MIC_LEN; i++) { for (i = 0; i < IEEE80211_CCMP_MIC_LEN; i++) {
if ((mic[i] ^ s_0[i]) != a[i]) if ((mic[i] ^ s_0[i]) != a[i])
return -1; return -1;
} }
@ -138,7 +138,7 @@ struct crypto_cipher *ieee80211_aes_key_setup_encrypt(const u8 key[])
tfm = crypto_alloc_cipher("aes", 0, CRYPTO_ALG_ASYNC); tfm = crypto_alloc_cipher("aes", 0, CRYPTO_ALG_ASYNC);
if (!IS_ERR(tfm)) if (!IS_ERR(tfm))
crypto_cipher_setkey(tfm, key, ALG_CCMP_KEY_LEN); crypto_cipher_setkey(tfm, key, WLAN_KEY_LEN_CCMP);
return tfm; return tfm;
} }

24
net/mac80211/key.c
View File

@ -335,12 +335,12 @@ struct ieee80211_key *ieee80211_key_alloc(u32 cipher, int idx, size_t key_len,
switch (cipher) { switch (cipher) {
case WLAN_CIPHER_SUITE_WEP40: case WLAN_CIPHER_SUITE_WEP40:
case WLAN_CIPHER_SUITE_WEP104: case WLAN_CIPHER_SUITE_WEP104:
key->conf.iv_len = WEP_IV_LEN; key->conf.iv_len = IEEE80211_WEP_IV_LEN;
key->conf.icv_len = WEP_ICV_LEN; key->conf.icv_len = IEEE80211_WEP_ICV_LEN;
break; break;
case WLAN_CIPHER_SUITE_TKIP: case WLAN_CIPHER_SUITE_TKIP:
key->conf.iv_len = TKIP_IV_LEN; key->conf.iv_len = IEEE80211_TKIP_IV_LEN;
key->conf.icv_len = TKIP_ICV_LEN; key->conf.icv_len = IEEE80211_TKIP_ICV_LEN;
if (seq) { if (seq) {
for (i = 0; i < IEEE80211_NUM_TIDS; i++) { for (i = 0; i < IEEE80211_NUM_TIDS; i++) {
key->u.tkip.rx[i].iv32 = key->u.tkip.rx[i].iv32 =
@ -352,13 +352,13 @@ struct ieee80211_key *ieee80211_key_alloc(u32 cipher, int idx, size_t key_len,
spin_lock_init(&key->u.tkip.txlock); spin_lock_init(&key->u.tkip.txlock);
break; break;
case WLAN_CIPHER_SUITE_CCMP: case WLAN_CIPHER_SUITE_CCMP:
key->conf.iv_len = CCMP_HDR_LEN; key->conf.iv_len = IEEE80211_CCMP_HDR_LEN;
key->conf.icv_len = CCMP_MIC_LEN; key->conf.icv_len = IEEE80211_CCMP_MIC_LEN;
if (seq) { if (seq) {
for (i = 0; i < IEEE80211_NUM_TIDS + 1; i++) for (i = 0; i < IEEE80211_NUM_TIDS + 1; i++)
for (j = 0; j < CCMP_PN_LEN; j++) for (j = 0; j < IEEE80211_CCMP_PN_LEN; j++)
key->u.ccmp.rx_pn[i][j] = key->u.ccmp.rx_pn[i][j] =
seq[CCMP_PN_LEN - j - 1]; seq[IEEE80211_CCMP_PN_LEN - j - 1];
} }
/* /*
* Initialize AES key state here as an optimization so that * Initialize AES key state here as an optimization so that
@ -375,9 +375,9 @@ struct ieee80211_key *ieee80211_key_alloc(u32 cipher, int idx, size_t key_len,
key->conf.iv_len = 0; key->conf.iv_len = 0;
key->conf.icv_len = sizeof(struct ieee80211_mmie); key->conf.icv_len = sizeof(struct ieee80211_mmie);
if (seq) if (seq)
for (j = 0; j < CMAC_PN_LEN; j++) for (j = 0; j < IEEE80211_CMAC_PN_LEN; j++)
key->u.aes_cmac.rx_pn[j] = key->u.aes_cmac.rx_pn[j] =
seq[CMAC_PN_LEN - j - 1]; seq[IEEE80211_CMAC_PN_LEN - j - 1];
/* /*
* Initialize AES key state here as an optimization so that * Initialize AES key state here as an optimization so that
* it does not need to be initialized for every packet. * it does not need to be initialized for every packet.
@ -740,13 +740,13 @@ void ieee80211_get_key_rx_seq(struct ieee80211_key_conf *keyconf,
pn = key->u.ccmp.rx_pn[IEEE80211_NUM_TIDS]; pn = key->u.ccmp.rx_pn[IEEE80211_NUM_TIDS];
else else
pn = key->u.ccmp.rx_pn[tid]; pn = key->u.ccmp.rx_pn[tid];
memcpy(seq->ccmp.pn, pn, CCMP_PN_LEN); memcpy(seq->ccmp.pn, pn, IEEE80211_CCMP_PN_LEN);
break; break;
case WLAN_CIPHER_SUITE_AES_CMAC: case WLAN_CIPHER_SUITE_AES_CMAC:
if (WARN_ON(tid != 0)) if (WARN_ON(tid != 0))
return; return;
pn = key->u.aes_cmac.rx_pn; pn = key->u.aes_cmac.rx_pn;
memcpy(seq->aes_cmac.pn, pn, CMAC_PN_LEN); memcpy(seq->aes_cmac.pn, pn, IEEE80211_CMAC_PN_LEN);
break; break;
} }
} }

15
net/mac80211/key.h
View File

@ -19,17 +19,6 @@
#define NUM_DEFAULT_KEYS 4 #define NUM_DEFAULT_KEYS 4
#define NUM_DEFAULT_MGMT_KEYS 2 #define NUM_DEFAULT_MGMT_KEYS 2
#define WEP_IV_LEN 4
#define WEP_ICV_LEN 4
#define ALG_CCMP_KEY_LEN 16
#define CCMP_HDR_LEN 8
#define CCMP_MIC_LEN 8
#define CCMP_TK_LEN 16
#define CCMP_PN_LEN 6
#define TKIP_IV_LEN 8
#define TKIP_ICV_LEN 4
#define CMAC_PN_LEN 6
struct ieee80211_local; struct ieee80211_local;
struct ieee80211_sub_if_data; struct ieee80211_sub_if_data;
struct sta_info; struct sta_info;
@ -93,13 +82,13 @@ struct ieee80211_key {
* frames and the last counter is used with Robust * frames and the last counter is used with Robust
* Management frames. * Management frames.
*/ */
u8 rx_pn[IEEE80211_NUM_TIDS + 1][CCMP_PN_LEN]; u8 rx_pn[IEEE80211_NUM_TIDS + 1][IEEE80211_CCMP_PN_LEN];
struct crypto_cipher *tfm; struct crypto_cipher *tfm;
u32 replays; /* dot11RSNAStatsCCMPReplays */ u32 replays; /* dot11RSNAStatsCCMPReplays */
} ccmp; } ccmp;
struct { struct {
atomic64_t tx_pn; atomic64_t tx_pn;
u8 rx_pn[CMAC_PN_LEN]; u8 rx_pn[IEEE80211_CMAC_PN_LEN];
struct crypto_cipher *tfm; struct crypto_cipher *tfm;
u32 replays; /* dot11RSNAStatsCMACReplays */ u32 replays; /* dot11RSNAStatsCMACReplays */
u32 icverrors; /* dot11RSNAStatsCMACICVErrors */ u32 icverrors; /* dot11RSNAStatsCMACICVErrors */

12
net/mac80211/rx.c
View File

@ -1622,7 +1622,7 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx)
entry->ccmp = 1; entry->ccmp = 1;
memcpy(entry->last_pn, memcpy(entry->last_pn,
rx->key->u.ccmp.rx_pn[queue], rx->key->u.ccmp.rx_pn[queue],
CCMP_PN_LEN); IEEE80211_CCMP_PN_LEN);
} }
return RX_QUEUED; return RX_QUEUED;
} }
@ -1641,21 +1641,21 @@ ieee80211_rx_h_defragment(struct ieee80211_rx_data *rx)
* (IEEE 802.11i, 8.3.3.4.5) */ * (IEEE 802.11i, 8.3.3.4.5) */
if (entry->ccmp) { if (entry->ccmp) {
int i; int i;
u8 pn[CCMP_PN_LEN], *rpn; u8 pn[IEEE80211_CCMP_PN_LEN], *rpn;
int queue; int queue;
if (!rx->key || rx->key->conf.cipher != WLAN_CIPHER_SUITE_CCMP) if (!rx->key || rx->key->conf.cipher != WLAN_CIPHER_SUITE_CCMP)
return RX_DROP_UNUSABLE; return RX_DROP_UNUSABLE;
memcpy(pn, entry->last_pn, CCMP_PN_LEN); memcpy(pn, entry->last_pn, IEEE80211_CCMP_PN_LEN);
for (i = CCMP_PN_LEN - 1; i >= 0; i--) { for (i = IEEE80211_CCMP_PN_LEN - 1; i >= 0; i--) {
pn[i]++; pn[i]++;
if (pn[i]) if (pn[i])
break; break;
} }
queue = rx->security_idx; queue = rx->security_idx;
rpn = rx->key->u.ccmp.rx_pn[queue]; rpn = rx->key->u.ccmp.rx_pn[queue];
if (memcmp(pn, rpn, CCMP_PN_LEN)) if (memcmp(pn, rpn, IEEE80211_CCMP_PN_LEN))
return RX_DROP_UNUSABLE; return RX_DROP_UNUSABLE;
memcpy(entry->last_pn, pn, CCMP_PN_LEN); memcpy(entry->last_pn, pn, IEEE80211_CCMP_PN_LEN);
} }
skb_pull(rx->skb, ieee80211_hdrlen(fc)); skb_pull(rx->skb, ieee80211_hdrlen(fc));

48
net/mac80211/wep.c
View File

@ -28,7 +28,7 @@
int ieee80211_wep_init(struct ieee80211_local *local) int ieee80211_wep_init(struct ieee80211_local *local)
{ {
/* start WEP IV from a random value */ /* start WEP IV from a random value */
get_random_bytes(&local->wep_iv, WEP_IV_LEN); get_random_bytes(&local->wep_iv, IEEE80211_WEP_IV_LEN);
local->wep_tx_tfm = crypto_alloc_cipher("arc4", 0, CRYPTO_ALG_ASYNC); local->wep_tx_tfm = crypto_alloc_cipher("arc4", 0, CRYPTO_ALG_ASYNC);
if (IS_ERR(local->wep_tx_tfm)) { if (IS_ERR(local->wep_tx_tfm)) {
@ -98,20 +98,21 @@ static u8 *ieee80211_wep_add_iv(struct ieee80211_local *local,
hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED); hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PROTECTED);
if (WARN_ON(skb_tailroom(skb) < WEP_ICV_LEN || if (WARN_ON(skb_tailroom(skb) < IEEE80211_WEP_ICV_LEN ||
skb_headroom(skb) < WEP_IV_LEN)) skb_headroom(skb) < IEEE80211_WEP_IV_LEN))
return NULL; return NULL;
hdrlen = ieee80211_hdrlen(hdr->frame_control); hdrlen = ieee80211_hdrlen(hdr->frame_control);
newhdr = skb_push(skb, WEP_IV_LEN); newhdr = skb_push(skb, IEEE80211_WEP_IV_LEN);
memmove(newhdr, newhdr + WEP_IV_LEN, hdrlen); memmove(newhdr, newhdr + IEEE80211_WEP_IV_LEN, hdrlen);
/* the HW only needs room for the IV, but not the actual IV */ /* the HW only needs room for the IV, but not the actual IV */
if (info->control.hw_key && if (info->control.hw_key &&
(info->control.hw_key->flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE)) (info->control.hw_key->flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE))
return newhdr + hdrlen; return newhdr + hdrlen;
skb_set_network_header(skb, skb_network_offset(skb) + WEP_IV_LEN); skb_set_network_header(skb, skb_network_offset(skb) +
IEEE80211_WEP_IV_LEN);
ieee80211_wep_get_iv(local, keylen, keyidx, newhdr + hdrlen); ieee80211_wep_get_iv(local, keylen, keyidx, newhdr + hdrlen);
return newhdr + hdrlen; return newhdr + hdrlen;
} }
@ -125,8 +126,8 @@ static void ieee80211_wep_remove_iv(struct ieee80211_local *local,
unsigned int hdrlen; unsigned int hdrlen;
hdrlen = ieee80211_hdrlen(hdr->frame_control); hdrlen = ieee80211_hdrlen(hdr->frame_control);
memmove(skb->data + WEP_IV_LEN, skb->data, hdrlen); memmove(skb->data + IEEE80211_WEP_IV_LEN, skb->data, hdrlen);
skb_pull(skb, WEP_IV_LEN); skb_pull(skb, IEEE80211_WEP_IV_LEN);
} }
@ -146,7 +147,7 @@ int ieee80211_wep_encrypt_data(struct crypto_cipher *tfm, u8 *rc4key,
put_unaligned(icv, (__le32 *)(data + data_len)); put_unaligned(icv, (__le32 *)(data + data_len));
crypto_cipher_setkey(tfm, rc4key, klen); crypto_cipher_setkey(tfm, rc4key, klen);
for (i = 0; i < data_len + WEP_ICV_LEN; i++) for (i = 0; i < data_len + IEEE80211_WEP_ICV_LEN; i++)
crypto_cipher_encrypt_one(tfm, data + i, data + i); crypto_cipher_encrypt_one(tfm, data + i, data + i);
return 0; return 0;
@ -172,7 +173,7 @@ int ieee80211_wep_encrypt(struct ieee80211_local *local,
if (!iv) if (!iv)
return -1; return -1;
len = skb->len - (iv + WEP_IV_LEN - skb->data); len = skb->len - (iv + IEEE80211_WEP_IV_LEN - skb->data);
/* Prepend 24-bit IV to RC4 key */ /* Prepend 24-bit IV to RC4 key */
memcpy(rc4key, iv, 3); memcpy(rc4key, iv, 3);
@ -181,10 +182,10 @@ int ieee80211_wep_encrypt(struct ieee80211_local *local,
memcpy(rc4key + 3, key, keylen); memcpy(rc4key + 3, key, keylen);
/* Add room for ICV */ /* Add room for ICV */
skb_put(skb, WEP_ICV_LEN); skb_put(skb, IEEE80211_WEP_ICV_LEN);
return ieee80211_wep_encrypt_data(local->wep_tx_tfm, rc4key, keylen + 3, return ieee80211_wep_encrypt_data(local->wep_tx_tfm, rc4key, keylen + 3,
iv + WEP_IV_LEN, len); iv + IEEE80211_WEP_IV_LEN, len);
} }
@ -201,11 +202,11 @@ int ieee80211_wep_decrypt_data(struct crypto_cipher *tfm, u8 *rc4key,
return -1; return -1;
crypto_cipher_setkey(tfm, rc4key, klen); crypto_cipher_setkey(tfm, rc4key, klen);
for (i = 0; i < data_len + WEP_ICV_LEN; i++) for (i = 0; i < data_len + IEEE80211_WEP_ICV_LEN; i++)
crypto_cipher_decrypt_one(tfm, data + i, data + i); crypto_cipher_decrypt_one(tfm, data + i, data + i);
crc = cpu_to_le32(~crc32_le(~0, data, data_len)); crc = cpu_to_le32(~crc32_le(~0, data, data_len));
if (memcmp(&crc, data + data_len, WEP_ICV_LEN) != 0) if (memcmp(&crc, data + data_len, IEEE80211_WEP_ICV_LEN) != 0)
/* ICV mismatch */ /* ICV mismatch */
return -1; return -1;
@ -237,10 +238,10 @@ static int ieee80211_wep_decrypt(struct ieee80211_local *local,
return -1; return -1;
hdrlen = ieee80211_hdrlen(hdr->frame_control); hdrlen = ieee80211_hdrlen(hdr->frame_control);
if (skb->len < hdrlen + WEP_IV_LEN + WEP_ICV_LEN) if (skb->len < hdrlen + IEEE80211_WEP_IV_LEN + IEEE80211_WEP_ICV_LEN)
return -1; return -1;
len = skb->len - hdrlen - WEP_IV_LEN - WEP_ICV_LEN; len = skb->len - hdrlen - IEEE80211_WEP_IV_LEN - IEEE80211_WEP_ICV_LEN;
keyidx = skb->data[hdrlen + 3] >> 6; keyidx = skb->data[hdrlen + 3] >> 6;
@ -256,16 +257,16 @@ static int ieee80211_wep_decrypt(struct ieee80211_local *local,
memcpy(rc4key + 3, key->conf.key, key->conf.keylen); memcpy(rc4key + 3, key->conf.key, key->conf.keylen);
if (ieee80211_wep_decrypt_data(local->wep_rx_tfm, rc4key, klen, if (ieee80211_wep_decrypt_data(local->wep_rx_tfm, rc4key, klen,
skb->data + hdrlen + WEP_IV_LEN, skb->data + hdrlen +
len)) IEEE80211_WEP_IV_LEN, len))
ret = -1; ret = -1;
/* Trim ICV */ /* Trim ICV */
skb_trim(skb, skb->len - WEP_ICV_LEN); skb_trim(skb, skb->len - IEEE80211_WEP_ICV_LEN);
/* Remove IV */ /* Remove IV */
memmove(skb->data + WEP_IV_LEN, skb->data, hdrlen); memmove(skb->data + IEEE80211_WEP_IV_LEN, skb->data, hdrlen);
skb_pull(skb, WEP_IV_LEN); skb_pull(skb, IEEE80211_WEP_IV_LEN);
return ret; return ret;
} }
@ -305,13 +306,14 @@ ieee80211_crypto_wep_decrypt(struct ieee80211_rx_data *rx)
if (ieee80211_wep_decrypt(rx->local, rx->skb, rx->key)) if (ieee80211_wep_decrypt(rx->local, rx->skb, rx->key))
return RX_DROP_UNUSABLE; return RX_DROP_UNUSABLE;
} else if (!(status->flag & RX_FLAG_IV_STRIPPED)) { } else if (!(status->flag & RX_FLAG_IV_STRIPPED)) {
if (!pskb_may_pull(rx->skb, ieee80211_hdrlen(fc) + WEP_IV_LEN)) if (!pskb_may_pull(rx->skb, ieee80211_hdrlen(fc) +
IEEE80211_WEP_IV_LEN))
return RX_DROP_UNUSABLE; return RX_DROP_UNUSABLE;
if (rx->sta && ieee80211_wep_is_weak_iv(rx->skb, rx->key)) if (rx->sta && ieee80211_wep_is_weak_iv(rx->skb, rx->key))
rx->sta->wep_weak_iv_count++; rx->sta->wep_weak_iv_count++;
ieee80211_wep_remove_iv(rx->local, rx->skb, rx->key); ieee80211_wep_remove_iv(rx->local, rx->skb, rx->key);
/* remove ICV */ /* remove ICV */
if (pskb_trim(rx->skb, rx->skb->len - WEP_ICV_LEN)) if (pskb_trim(rx->skb, rx->skb->len - IEEE80211_WEP_ICV_LEN))
return RX_DROP_UNUSABLE; return RX_DROP_UNUSABLE;
} }

68
net/mac80211/wpa.c
View File

@ -62,10 +62,10 @@ ieee80211_tx_h_michael_mic_add(struct ieee80211_tx_data *tx)
tail = MICHAEL_MIC_LEN; tail = MICHAEL_MIC_LEN;
if (!info->control.hw_key) if (!info->control.hw_key)
tail += TKIP_ICV_LEN; tail += IEEE80211_TKIP_ICV_LEN;
if (WARN_ON(skb_tailroom(skb) < tail || if (WARN_ON(skb_tailroom(skb) < tail ||
skb_headroom(skb) < TKIP_IV_LEN)) skb_headroom(skb) < IEEE80211_TKIP_IV_LEN))
return TX_DROP; return TX_DROP;
key = &tx->key->conf.key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY]; key = &tx->key->conf.key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY];
@ -198,15 +198,16 @@ static int tkip_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
if (info->control.hw_key) if (info->control.hw_key)
tail = 0; tail = 0;
else else
tail = TKIP_ICV_LEN; tail = IEEE80211_TKIP_ICV_LEN;
if (WARN_ON(skb_tailroom(skb) < tail || if (WARN_ON(skb_tailroom(skb) < tail ||
skb_headroom(skb) < TKIP_IV_LEN)) skb_headroom(skb) < IEEE80211_TKIP_IV_LEN))
return -1; return -1;
pos = skb_push(skb, TKIP_IV_LEN); pos = skb_push(skb, IEEE80211_TKIP_IV_LEN);
memmove(pos, pos + TKIP_IV_LEN, hdrlen); memmove(pos, pos + IEEE80211_TKIP_IV_LEN, hdrlen);
skb_set_network_header(skb, skb_network_offset(skb) + TKIP_IV_LEN); skb_set_network_header(skb, skb_network_offset(skb) +
IEEE80211_TKIP_IV_LEN);
pos += hdrlen; pos += hdrlen;
/* the HW only needs room for the IV, but not the actual IV */ /* the HW only needs room for the IV, but not the actual IV */
@ -227,7 +228,7 @@ static int tkip_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
return 0; return 0;
/* Add room for ICV */ /* Add room for ICV */
skb_put(skb, TKIP_ICV_LEN); skb_put(skb, IEEE80211_TKIP_ICV_LEN);
return ieee80211_tkip_encrypt_data(tx->local->wep_tx_tfm, return ieee80211_tkip_encrypt_data(tx->local->wep_tx_tfm,
key, skb, pos, len); key, skb, pos, len);
@ -290,11 +291,11 @@ ieee80211_crypto_tkip_decrypt(struct ieee80211_rx_data *rx)
return RX_DROP_UNUSABLE; return RX_DROP_UNUSABLE;
/* Trim ICV */ /* Trim ICV */
skb_trim(skb, skb->len - TKIP_ICV_LEN); skb_trim(skb, skb->len - IEEE80211_TKIP_ICV_LEN);
/* Remove IV */ /* Remove IV */
memmove(skb->data + TKIP_IV_LEN, skb->data, hdrlen); memmove(skb->data + IEEE80211_TKIP_IV_LEN, skb->data, hdrlen);
skb_pull(skb, TKIP_IV_LEN); skb_pull(skb, IEEE80211_TKIP_IV_LEN);
return RX_CONTINUE; return RX_CONTINUE;
} }
@ -337,9 +338,9 @@ static void ccmp_special_blocks(struct sk_buff *skb, u8 *pn, u8 *scratch,
else else
qos_tid = 0; qos_tid = 0;
data_len = skb->len - hdrlen - CCMP_HDR_LEN; data_len = skb->len - hdrlen - IEEE80211_CCMP_HDR_LEN;
if (encrypted) if (encrypted)
data_len -= CCMP_MIC_LEN; data_len -= IEEE80211_CCMP_MIC_LEN;
/* First block, b_0 */ /* First block, b_0 */
b_0[0] = 0x59; /* flags: Adata: 1, M: 011, L: 001 */ b_0[0] = 0x59; /* flags: Adata: 1, M: 011, L: 001 */
@ -348,7 +349,7 @@ static void ccmp_special_blocks(struct sk_buff *skb, u8 *pn, u8 *scratch,
*/ */
b_0[1] = qos_tid | (mgmt << 4); b_0[1] = qos_tid | (mgmt << 4);
memcpy(&b_0[2], hdr->addr2, ETH_ALEN); memcpy(&b_0[2], hdr->addr2, ETH_ALEN);
memcpy(&b_0[8], pn, CCMP_PN_LEN); memcpy(&b_0[8], pn, IEEE80211_CCMP_PN_LEN);
/* l(m) */ /* l(m) */
put_unaligned_be16(data_len, &b_0[14]); put_unaligned_be16(data_len, &b_0[14]);
@ -424,15 +425,16 @@ static int ccmp_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
if (info->control.hw_key) if (info->control.hw_key)
tail = 0; tail = 0;
else else
tail = CCMP_MIC_LEN; tail = IEEE80211_CCMP_MIC_LEN;
if (WARN_ON(skb_tailroom(skb) < tail || if (WARN_ON(skb_tailroom(skb) < tail ||
skb_headroom(skb) < CCMP_HDR_LEN)) skb_headroom(skb) < IEEE80211_CCMP_HDR_LEN))
return -1; return -1;
pos = skb_push(skb, CCMP_HDR_LEN); pos = skb_push(skb, IEEE80211_CCMP_HDR_LEN);
memmove(pos, pos + CCMP_HDR_LEN, hdrlen); memmove(pos, pos + IEEE80211_CCMP_HDR_LEN, hdrlen);
skb_set_network_header(skb, skb_network_offset(skb) + CCMP_HDR_LEN); skb_set_network_header(skb, skb_network_offset(skb) +
IEEE80211_CCMP_HDR_LEN);
/* the HW only needs room for the IV, but not the actual IV */ /* the HW only needs room for the IV, but not the actual IV */
if (info->control.hw_key && if (info->control.hw_key &&
@ -457,10 +459,10 @@ static int ccmp_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb)
if (info->control.hw_key) if (info->control.hw_key)
return 0; return 0;
pos += CCMP_HDR_LEN; pos += IEEE80211_CCMP_HDR_LEN;
ccmp_special_blocks(skb, pn, scratch, 0); ccmp_special_blocks(skb, pn, scratch, 0);
ieee80211_aes_ccm_encrypt(key->u.ccmp.tfm, scratch, pos, len, ieee80211_aes_ccm_encrypt(key->u.ccmp.tfm, scratch, pos, len,
pos, skb_put(skb, CCMP_MIC_LEN)); pos, skb_put(skb, IEEE80211_CCMP_MIC_LEN));
return 0; return 0;
} }
@ -490,7 +492,7 @@ ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx)
struct ieee80211_key *key = rx->key; struct ieee80211_key *key = rx->key;
struct sk_buff *skb = rx->skb; struct sk_buff *skb = rx->skb;
struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb); struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
u8 pn[CCMP_PN_LEN]; u8 pn[IEEE80211_CCMP_PN_LEN];
int data_len; int data_len;
int queue; int queue;
@ -500,12 +502,13 @@ ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx)
!ieee80211_is_robust_mgmt_frame(hdr)) !ieee80211_is_robust_mgmt_frame(hdr))
return RX_CONTINUE; return RX_CONTINUE;
data_len = skb->len - hdrlen - CCMP_HDR_LEN - CCMP_MIC_LEN; data_len = skb->len - hdrlen - IEEE80211_CCMP_HDR_LEN -
IEEE80211_CCMP_MIC_LEN;
if (!rx->sta || data_len < 0) if (!rx->sta || data_len < 0)
return RX_DROP_UNUSABLE; return RX_DROP_UNUSABLE;
if (status->flag & RX_FLAG_DECRYPTED) { if (status->flag & RX_FLAG_DECRYPTED) {
if (!pskb_may_pull(rx->skb, hdrlen + CCMP_HDR_LEN)) if (!pskb_may_pull(rx->skb, hdrlen + IEEE80211_CCMP_HDR_LEN))
return RX_DROP_UNUSABLE; return RX_DROP_UNUSABLE;
} else { } else {
if (skb_linearize(rx->skb)) if (skb_linearize(rx->skb))
@ -516,7 +519,7 @@ ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx)
queue = rx->security_idx; queue = rx->security_idx;
if (memcmp(pn, key->u.ccmp.rx_pn[queue], CCMP_PN_LEN) <= 0) { if (memcmp(pn, key->u.ccmp.rx_pn[queue], IEEE80211_CCMP_PN_LEN) <= 0) {
key->u.ccmp.replays++; key->u.ccmp.replays++;
return RX_DROP_UNUSABLE; return RX_DROP_UNUSABLE;
} }
@ -528,19 +531,20 @@ ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx)
if (ieee80211_aes_ccm_decrypt( if (ieee80211_aes_ccm_decrypt(
key->u.ccmp.tfm, scratch, key->u.ccmp.tfm, scratch,
skb->data + hdrlen + CCMP_HDR_LEN, data_len, skb->data + hdrlen + IEEE80211_CCMP_HDR_LEN,
skb->data + skb->len - CCMP_MIC_LEN, data_len,
skb->data + hdrlen + CCMP_HDR_LEN)) skb->data + skb->len - IEEE80211_CCMP_MIC_LEN,
skb->data + hdrlen + IEEE80211_CCMP_HDR_LEN))
return RX_DROP_UNUSABLE; return RX_DROP_UNUSABLE;
} }
memcpy(key->u.ccmp.rx_pn[queue], pn, CCMP_PN_LEN); memcpy(key->u.ccmp.rx_pn[queue], pn, IEEE80211_CCMP_PN_LEN);
/* Remove CCMP header and MIC */ /* Remove CCMP header and MIC */
if (pskb_trim(skb, skb->len - CCMP_MIC_LEN)) if (pskb_trim(skb, skb->len - IEEE80211_CCMP_MIC_LEN))
return RX_DROP_UNUSABLE; return RX_DROP_UNUSABLE;
memmove(skb->data + CCMP_HDR_LEN, skb->data, hdrlen); memmove(skb->data + IEEE80211_CCMP_HDR_LEN, skb->data, hdrlen);
skb_pull(skb, CCMP_HDR_LEN); skb_pull(skb, IEEE80211_CCMP_HDR_LEN);
return RX_CONTINUE; return RX_CONTINUE;
} }