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author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-04 11:47:58 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-04 11:47:58 -0700 |
commit | 6ba74014c1ab0e37af7de6f64b4eccbbae3cb9e7 (patch) | |
tree | 8f3892fc44f1e403675a6d7e88fda5c70e56ee4c /net/mac80211/wep.c | |
parent | 5abd9ccced7a726c817dd6b5b96bc933859138d1 (diff) | |
parent | 3ff1c25927e3af61c6bf0e4ed959504058ae4565 (diff) | |
download | linux-rt-6ba74014c1ab0e37af7de6f64b4eccbbae3cb9e7.tar.gz |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1443 commits)
phy/marvell: add 88ec048 support
igb: Program MDICNFG register prior to PHY init
e1000e: correct MAC-PHY interconnect register offset for 82579
hso: Add new product ID
can: Add driver for esd CAN-USB/2 device
l2tp: fix export of header file for userspace
can-raw: Fix skb_orphan_try handling
Revert "net: remove zap_completion_queue"
net: cleanup inclusion
phy/marvell: add 88e1121 interface mode support
u32: negative offset fix
net: Fix a typo from "dev" to "ndev"
igb: Use irq_synchronize per vector when using MSI-X
ixgbevf: fix null pointer dereference due to filter being set for VLAN 0
e1000e: Fix irq_synchronize in MSI-X case
e1000e: register pm_qos request on hardware activation
ip_fragment: fix subtracting PPPOE_SES_HLEN from mtu twice
net: Add getsockopt support for TCP thin-streams
cxgb4: update driver version
cxgb4: add new PCI IDs
...
Manually fix up conflicts in:
- drivers/net/e1000e/netdev.c: due to pm_qos registration
infrastructure changes
- drivers/net/phy/marvell.c: conflict between adding 88ec048 support
and cleaning up the IDs
- drivers/net/wireless/ipw2x00/ipw2100.c: trivial ipw2100_pm_qos_req
conflict (registration change vs marking it static)
Diffstat (limited to 'net/mac80211/wep.c')
-rw-r--r-- | net/mac80211/wep.c | 29 |
1 files changed, 20 insertions, 9 deletions
diff --git a/net/mac80211/wep.c b/net/mac80211/wep.c index 5f3a4113bda1..9ebc8d8a1f5b 100644 --- a/net/mac80211/wep.c +++ b/net/mac80211/wep.c @@ -32,13 +32,16 @@ int ieee80211_wep_init(struct ieee80211_local *local) local->wep_tx_tfm = crypto_alloc_blkcipher("ecb(arc4)", 0, CRYPTO_ALG_ASYNC); - if (IS_ERR(local->wep_tx_tfm)) + if (IS_ERR(local->wep_tx_tfm)) { + local->wep_rx_tfm = ERR_PTR(-EINVAL); return PTR_ERR(local->wep_tx_tfm); + } local->wep_rx_tfm = crypto_alloc_blkcipher("ecb(arc4)", 0, CRYPTO_ALG_ASYNC); if (IS_ERR(local->wep_rx_tfm)) { crypto_free_blkcipher(local->wep_tx_tfm); + local->wep_tx_tfm = ERR_PTR(-EINVAL); return PTR_ERR(local->wep_rx_tfm); } @@ -47,8 +50,10 @@ int ieee80211_wep_init(struct ieee80211_local *local) void ieee80211_wep_free(struct ieee80211_local *local) { - crypto_free_blkcipher(local->wep_tx_tfm); - crypto_free_blkcipher(local->wep_rx_tfm); + if (!IS_ERR(local->wep_tx_tfm)) + crypto_free_blkcipher(local->wep_tx_tfm); + if (!IS_ERR(local->wep_rx_tfm)) + crypto_free_blkcipher(local->wep_rx_tfm); } static inline bool ieee80211_wep_weak_iv(u32 iv, int keylen) @@ -122,19 +127,24 @@ static void ieee80211_wep_remove_iv(struct ieee80211_local *local, /* Perform WEP encryption using given key. data buffer must have tailroom * for 4-byte ICV. data_len must not include this ICV. Note: this function * does _not_ add IV. data = RC4(data | CRC32(data)) */ -void ieee80211_wep_encrypt_data(struct crypto_blkcipher *tfm, u8 *rc4key, - size_t klen, u8 *data, size_t data_len) +int ieee80211_wep_encrypt_data(struct crypto_blkcipher *tfm, u8 *rc4key, + size_t klen, u8 *data, size_t data_len) { struct blkcipher_desc desc = { .tfm = tfm }; struct scatterlist sg; __le32 icv; + if (IS_ERR(tfm)) + return -1; + icv = cpu_to_le32(~crc32_le(~0, data, data_len)); put_unaligned(icv, (__le32 *)(data + data_len)); crypto_blkcipher_setkey(tfm, rc4key, klen); sg_init_one(&sg, data, data_len + WEP_ICV_LEN); crypto_blkcipher_encrypt(&desc, &sg, &sg, sg.length); + + return 0; } @@ -168,10 +178,8 @@ int ieee80211_wep_encrypt(struct ieee80211_local *local, /* Add room for ICV */ skb_put(skb, WEP_ICV_LEN); - ieee80211_wep_encrypt_data(local->wep_tx_tfm, rc4key, keylen + 3, - iv + WEP_IV_LEN, len); - - return 0; + return ieee80211_wep_encrypt_data(local->wep_tx_tfm, rc4key, keylen + 3, + iv + WEP_IV_LEN, len); } @@ -185,6 +193,9 @@ int ieee80211_wep_decrypt_data(struct crypto_blkcipher *tfm, u8 *rc4key, struct scatterlist sg; __le32 crc; + if (IS_ERR(tfm)) + return -1; + crypto_blkcipher_setkey(tfm, rc4key, klen); sg_init_one(&sg, data, data_len + WEP_ICV_LEN); crypto_blkcipher_decrypt(&desc, &sg, &sg, sg.length); |