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author | Linus Torvalds <torvalds@linux-foundation.org> | 2019-07-09 05:57:08 +0200 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2019-07-09 05:57:08 +0200 |
commit | 4d2fa8b44b891f0da5ceda3e5a1402ccf0ab6f26 (patch) | |
tree | cbb763ec5e74cfbaac6ce53df277883cb78a8a1a /net | |
parent | Merge branch 'next-integrity' of git://git.kernel.org/pub/scm/linux/kernel/gi... (diff) | |
parent | crypto: stm32/hash - remove interruptible condition for dma (diff) | |
download | linux-4d2fa8b44b891f0da5ceda3e5a1402ccf0ab6f26.tar.xz linux-4d2fa8b44b891f0da5ceda3e5a1402ccf0ab6f26.zip |
Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto updates from Herbert Xu:
"Here is the crypto update for 5.3:
API:
- Test shash interface directly in testmgr
- cra_driver_name is now mandatory
Algorithms:
- Replace arc4 crypto_cipher with library helper
- Implement 5 way interleave for ECB, CBC and CTR on arm64
- Add xxhash
- Add continuous self-test on noise source to drbg
- Update jitter RNG
Drivers:
- Add support for SHA204A random number generator
- Add support for 7211 in iproc-rng200
- Fix fuzz test failures in inside-secure
- Fix fuzz test failures in talitos
- Fix fuzz test failures in qat"
* 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (143 commits)
crypto: stm32/hash - remove interruptible condition for dma
crypto: stm32/hash - Fix hmac issue more than 256 bytes
crypto: stm32/crc32 - rename driver file
crypto: amcc - remove memset after dma_alloc_coherent
crypto: ccp - Switch to SPDX license identifiers
crypto: ccp - Validate the the error value used to index error messages
crypto: doc - Fix formatting of new crypto engine content
crypto: doc - Add parameter documentation
crypto: arm64/aes-ce - implement 5 way interleave for ECB, CBC and CTR
crypto: arm64/aes-ce - add 5 way interleave routines
crypto: talitos - drop icv_ool
crypto: talitos - fix hash on SEC1.
crypto: talitos - move struct talitos_edesc into talitos.h
lib/scatterlist: Fix mapping iterator when sg->offset is greater than PAGE_SIZE
crypto/NX: Set receive window credits to max number of CRBs in RxFIFO
crypto: asymmetric_keys - select CRYPTO_HASH where needed
crypto: serpent - mark __serpent_setkey_sbox noinline
crypto: testmgr - dynamically allocate crypto_shash
crypto: testmgr - dynamically allocate testvec_config
crypto: talitos - eliminate unneeded 'done' functions at build time
...
Diffstat (limited to 'net')
-rw-r--r-- | net/mac80211/Kconfig | 2 | ||||
-rw-r--r-- | net/mac80211/cfg.c | 4 | ||||
-rw-r--r-- | net/mac80211/ieee80211_i.h | 4 | ||||
-rw-r--r-- | net/mac80211/key.h | 1 | ||||
-rw-r--r-- | net/mac80211/main.c | 6 | ||||
-rw-r--r-- | net/mac80211/mlme.c | 3 | ||||
-rw-r--r-- | net/mac80211/tkip.c | 8 | ||||
-rw-r--r-- | net/mac80211/tkip.h | 4 | ||||
-rw-r--r-- | net/mac80211/wep.c | 49 | ||||
-rw-r--r-- | net/mac80211/wep.h | 5 | ||||
-rw-r--r-- | net/mac80211/wpa.c | 4 | ||||
-rw-r--r-- | net/wireless/Kconfig | 2 | ||||
-rw-r--r-- | net/wireless/lib80211_crypt_tkip.c | 48 | ||||
-rw-r--r-- | net/wireless/lib80211_crypt_wep.c | 51 |
14 files changed, 62 insertions, 129 deletions
diff --git a/net/mac80211/Kconfig b/net/mac80211/Kconfig index 0227cce9685e..0c93b1b7a826 100644 --- a/net/mac80211/Kconfig +++ b/net/mac80211/Kconfig @@ -3,7 +3,7 @@ config MAC80211 tristate "Generic IEEE 802.11 Networking Stack (mac80211)" depends on CFG80211 select CRYPTO - select CRYPTO_ARC4 + select CRYPTO_LIB_ARC4 select CRYPTO_AES select CRYPTO_CCM select CRYPTO_GCM diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index a1973a26c7fc..3fae902937fd 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -14,6 +14,7 @@ #include <linux/slab.h> #include <net/net_namespace.h> #include <linux/rcupdate.h> +#include <linux/fips.h> #include <linux/if_ether.h> #include <net/cfg80211.h> #include "ieee80211_i.h" @@ -402,9 +403,8 @@ static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, case WLAN_CIPHER_SUITE_WEP40: case WLAN_CIPHER_SUITE_TKIP: case WLAN_CIPHER_SUITE_WEP104: - if (IS_ERR(local->wep_tx_tfm)) + if (WARN_ON_ONCE(fips_enabled)) return -EINVAL; - break; case WLAN_CIPHER_SUITE_CCMP: case WLAN_CIPHER_SUITE_CCMP_256: case WLAN_CIPHER_SUITE_AES_CMAC: diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h index 6396d46a9a71..004e2e3adb88 100644 --- a/net/mac80211/ieee80211_i.h +++ b/net/mac80211/ieee80211_i.h @@ -1255,8 +1255,8 @@ struct ieee80211_local { struct rate_control_ref *rate_ctrl; - struct crypto_cipher *wep_tx_tfm; - struct crypto_cipher *wep_rx_tfm; + struct arc4_ctx wep_tx_ctx; + struct arc4_ctx wep_rx_ctx; u32 wep_iv; /* see iface.c */ diff --git a/net/mac80211/key.h b/net/mac80211/key.h index be118c39433f..b8b9cd743bf4 100644 --- a/net/mac80211/key.h +++ b/net/mac80211/key.h @@ -11,6 +11,7 @@ #include <linux/list.h> #include <linux/crypto.h> #include <linux/rcupdate.h> +#include <crypto/arc4.h> #include <net/mac80211.h> #define NUM_DEFAULT_KEYS 4 diff --git a/net/mac80211/main.c b/net/mac80211/main.c index 55583b71ffaf..087c90e461b5 100644 --- a/net/mac80211/main.c +++ b/net/mac80211/main.c @@ -10,6 +10,7 @@ #include <net/mac80211.h> #include <linux/module.h> +#include <linux/fips.h> #include <linux/init.h> #include <linux/netdevice.h> #include <linux/types.h> @@ -730,8 +731,7 @@ EXPORT_SYMBOL(ieee80211_alloc_hw_nm); static int ieee80211_init_cipher_suites(struct ieee80211_local *local) { - bool have_wep = !(IS_ERR(local->wep_tx_tfm) || - IS_ERR(local->wep_rx_tfm)); + bool have_wep = !fips_enabled; /* FIPS does not permit the use of RC4 */ bool have_mfp = ieee80211_hw_check(&local->hw, MFP_CAPABLE); int n_suites = 0, r = 0, w = 0; u32 *suites; @@ -1298,7 +1298,6 @@ int ieee80211_register_hw(struct ieee80211_hw *hw) fail_rate: rtnl_unlock(); ieee80211_led_exit(local); - ieee80211_wep_free(local); fail_flows: destroy_workqueue(local->workqueue); fail_workqueue: @@ -1355,7 +1354,6 @@ void ieee80211_unregister_hw(struct ieee80211_hw *hw) destroy_workqueue(local->workqueue); wiphy_unregister(local->hw.wiphy); - ieee80211_wep_free(local); ieee80211_led_exit(local); kfree(local->int_scan_req); } diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c index 379d2ab6d327..a00b703bfdfd 100644 --- a/net/mac80211/mlme.c +++ b/net/mac80211/mlme.c @@ -12,6 +12,7 @@ */ #include <linux/delay.h> +#include <linux/fips.h> #include <linux/if_ether.h> #include <linux/skbuff.h> #include <linux/if_arp.h> @@ -5045,7 +5046,7 @@ int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata, auth_alg = WLAN_AUTH_OPEN; break; case NL80211_AUTHTYPE_SHARED_KEY: - if (IS_ERR(local->wep_tx_tfm)) + if (fips_enabled) return -EOPNOTSUPP; auth_alg = WLAN_AUTH_SHARED_KEY; break; diff --git a/net/mac80211/tkip.c b/net/mac80211/tkip.c index 7914b8e3ce8c..727dc9f3f3b3 100644 --- a/net/mac80211/tkip.c +++ b/net/mac80211/tkip.c @@ -219,7 +219,7 @@ EXPORT_SYMBOL(ieee80211_get_tkip_p2k); * @payload_len is the length of payload (_not_ including IV/ICV length). * @ta is the transmitter addresses. */ -int ieee80211_tkip_encrypt_data(struct crypto_cipher *tfm, +int ieee80211_tkip_encrypt_data(struct arc4_ctx *ctx, struct ieee80211_key *key, struct sk_buff *skb, u8 *payload, size_t payload_len) @@ -228,7 +228,7 @@ int ieee80211_tkip_encrypt_data(struct crypto_cipher *tfm, ieee80211_get_tkip_p2k(&key->conf, skb, rc4key); - return ieee80211_wep_encrypt_data(tfm, rc4key, 16, + return ieee80211_wep_encrypt_data(ctx, rc4key, 16, payload, payload_len); } @@ -236,7 +236,7 @@ int ieee80211_tkip_encrypt_data(struct crypto_cipher *tfm, * beginning of the buffer containing IEEE 802.11 header payload, i.e., * including IV, Ext. IV, real data, Michael MIC, ICV. @payload_len is the * length of payload, including IV, Ext. IV, MIC, ICV. */ -int ieee80211_tkip_decrypt_data(struct crypto_cipher *tfm, +int ieee80211_tkip_decrypt_data(struct arc4_ctx *ctx, struct ieee80211_key *key, u8 *payload, size_t payload_len, u8 *ta, u8 *ra, int only_iv, int queue, @@ -294,7 +294,7 @@ int ieee80211_tkip_decrypt_data(struct crypto_cipher *tfm, tkip_mixing_phase2(tk, &rx_ctx->ctx, iv16, rc4key); - res = ieee80211_wep_decrypt_data(tfm, rc4key, 16, pos, payload_len - 12); + res = ieee80211_wep_decrypt_data(ctx, rc4key, 16, pos, payload_len - 12); done: if (res == TKIP_DECRYPT_OK) { /* diff --git a/net/mac80211/tkip.h b/net/mac80211/tkip.h index 676a7babdf5d..9d2f8bd36cc7 100644 --- a/net/mac80211/tkip.h +++ b/net/mac80211/tkip.h @@ -10,7 +10,7 @@ #include <linux/crypto.h> #include "key.h" -int ieee80211_tkip_encrypt_data(struct crypto_cipher *tfm, +int ieee80211_tkip_encrypt_data(struct arc4_ctx *ctx, struct ieee80211_key *key, struct sk_buff *skb, u8 *payload, size_t payload_len); @@ -21,7 +21,7 @@ enum { TKIP_DECRYPT_INVALID_KEYIDX = -2, TKIP_DECRYPT_REPLAY = -3, }; -int ieee80211_tkip_decrypt_data(struct crypto_cipher *tfm, +int ieee80211_tkip_decrypt_data(struct arc4_ctx *ctx, struct ieee80211_key *key, u8 *payload, size_t payload_len, u8 *ta, u8 *ra, int only_iv, int queue, diff --git a/net/mac80211/wep.c b/net/mac80211/wep.c index 3d9e92867ef0..b75c2c54e665 100644 --- a/net/mac80211/wep.c +++ b/net/mac80211/wep.c @@ -27,30 +27,9 @@ int ieee80211_wep_init(struct ieee80211_local *local) /* start WEP IV from a random value */ get_random_bytes(&local->wep_iv, IEEE80211_WEP_IV_LEN); - local->wep_tx_tfm = crypto_alloc_cipher("arc4", 0, 0); - 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_cipher("arc4", 0, 0); - if (IS_ERR(local->wep_rx_tfm)) { - crypto_free_cipher(local->wep_tx_tfm); - local->wep_tx_tfm = ERR_PTR(-EINVAL); - return PTR_ERR(local->wep_rx_tfm); - } - return 0; } -void ieee80211_wep_free(struct ieee80211_local *local) -{ - if (!IS_ERR(local->wep_tx_tfm)) - crypto_free_cipher(local->wep_tx_tfm); - if (!IS_ERR(local->wep_rx_tfm)) - crypto_free_cipher(local->wep_rx_tfm); -} - static inline bool ieee80211_wep_weak_iv(u32 iv, int keylen) { /* @@ -128,21 +107,17 @@ 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)) */ -int ieee80211_wep_encrypt_data(struct crypto_cipher *tfm, u8 *rc4key, +int ieee80211_wep_encrypt_data(struct arc4_ctx *ctx, u8 *rc4key, size_t klen, u8 *data, size_t data_len) { __le32 icv; - int i; - - if (IS_ERR(tfm)) - return -1; icv = cpu_to_le32(~crc32_le(~0, data, data_len)); put_unaligned(icv, (__le32 *)(data + data_len)); - crypto_cipher_setkey(tfm, rc4key, klen); - for (i = 0; i < data_len + IEEE80211_WEP_ICV_LEN; i++) - crypto_cipher_encrypt_one(tfm, data + i, data + i); + arc4_setkey(ctx, rc4key, klen); + arc4_crypt(ctx, data, data, data_len + IEEE80211_WEP_ICV_LEN); + memzero_explicit(ctx, sizeof(*ctx)); return 0; } @@ -181,7 +156,7 @@ int ieee80211_wep_encrypt(struct ieee80211_local *local, /* Add room for ICV */ 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_ctx, rc4key, keylen + 3, iv + IEEE80211_WEP_IV_LEN, len); } @@ -189,18 +164,14 @@ int ieee80211_wep_encrypt(struct ieee80211_local *local, /* Perform WEP decryption using given key. data buffer includes encrypted * payload, including 4-byte ICV, but _not_ IV. data_len must not include ICV. * Return 0 on success and -1 on ICV mismatch. */ -int ieee80211_wep_decrypt_data(struct crypto_cipher *tfm, u8 *rc4key, +int ieee80211_wep_decrypt_data(struct arc4_ctx *ctx, u8 *rc4key, size_t klen, u8 *data, size_t data_len) { __le32 crc; - int i; - - if (IS_ERR(tfm)) - return -1; - crypto_cipher_setkey(tfm, rc4key, klen); - for (i = 0; i < data_len + IEEE80211_WEP_ICV_LEN; i++) - crypto_cipher_decrypt_one(tfm, data + i, data + i); + arc4_setkey(ctx, rc4key, klen); + arc4_crypt(ctx, data, data, data_len + IEEE80211_WEP_ICV_LEN); + memzero_explicit(ctx, sizeof(*ctx)); crc = cpu_to_le32(~crc32_le(~0, data, data_len)); if (memcmp(&crc, data + data_len, IEEE80211_WEP_ICV_LEN) != 0) @@ -253,7 +224,7 @@ static int ieee80211_wep_decrypt(struct ieee80211_local *local, /* Copy rest of the WEP key (the secret part) */ 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_ctx, rc4key, klen, skb->data + hdrlen + IEEE80211_WEP_IV_LEN, len)) ret = -1; diff --git a/net/mac80211/wep.h b/net/mac80211/wep.h index 866a6798c9ef..997a034233c2 100644 --- a/net/mac80211/wep.h +++ b/net/mac80211/wep.h @@ -14,13 +14,12 @@ #include "key.h" int ieee80211_wep_init(struct ieee80211_local *local); -void ieee80211_wep_free(struct ieee80211_local *local); -int ieee80211_wep_encrypt_data(struct crypto_cipher *tfm, u8 *rc4key, +int ieee80211_wep_encrypt_data(struct arc4_ctx *ctx, u8 *rc4key, size_t klen, u8 *data, size_t data_len); int ieee80211_wep_encrypt(struct ieee80211_local *local, struct sk_buff *skb, const u8 *key, int keylen, int keyidx); -int ieee80211_wep_decrypt_data(struct crypto_cipher *tfm, u8 *rc4key, +int ieee80211_wep_decrypt_data(struct arc4_ctx *ctx, u8 *rc4key, size_t klen, u8 *data, size_t data_len); ieee80211_rx_result diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c index a51c7909366e..ee72779729e5 100644 --- a/net/mac80211/wpa.c +++ b/net/mac80211/wpa.c @@ -239,7 +239,7 @@ static int tkip_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb) /* Add room for ICV */ 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_ctx, key, skb, pos, len); } @@ -290,7 +290,7 @@ ieee80211_crypto_tkip_decrypt(struct ieee80211_rx_data *rx) if (status->flag & RX_FLAG_DECRYPTED) hwaccel = 1; - res = ieee80211_tkip_decrypt_data(rx->local->wep_rx_tfm, + res = ieee80211_tkip_decrypt_data(&rx->local->wep_rx_ctx, key, skb->data + hdrlen, skb->len - hdrlen, rx->sta->sta.addr, hdr->addr1, hwaccel, rx->security_idx, diff --git a/net/wireless/Kconfig b/net/wireless/Kconfig index 6310ddede220..578cce4fbe6c 100644 --- a/net/wireless/Kconfig +++ b/net/wireless/Kconfig @@ -213,12 +213,14 @@ config LIB80211 config LIB80211_CRYPT_WEP tristate + select CRYPTO_LIB_ARC4 config LIB80211_CRYPT_CCMP tristate config LIB80211_CRYPT_TKIP tristate + select CRYPTO_LIB_ARC4 config LIB80211_DEBUG bool "lib80211 debugging messages" diff --git a/net/wireless/lib80211_crypt_tkip.c b/net/wireless/lib80211_crypt_tkip.c index 62edf5b01953..f5e842ba7673 100644 --- a/net/wireless/lib80211_crypt_tkip.c +++ b/net/wireless/lib80211_crypt_tkip.c @@ -9,6 +9,7 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include <linux/err.h> +#include <linux/fips.h> #include <linux/module.h> #include <linux/init.h> #include <linux/slab.h> @@ -25,6 +26,7 @@ #include <linux/ieee80211.h> #include <net/iw_handler.h> +#include <crypto/arc4.h> #include <crypto/hash.h> #include <linux/crypto.h> #include <linux/crc32.h> @@ -60,9 +62,9 @@ struct lib80211_tkip_data { int key_idx; - struct crypto_cipher *rx_tfm_arc4; + struct arc4_ctx rx_ctx_arc4; + struct arc4_ctx tx_ctx_arc4; struct crypto_shash *rx_tfm_michael; - struct crypto_cipher *tx_tfm_arc4; struct crypto_shash *tx_tfm_michael; /* scratch buffers for virt_to_page() (crypto API) */ @@ -89,30 +91,21 @@ static void *lib80211_tkip_init(int key_idx) { struct lib80211_tkip_data *priv; + if (fips_enabled) + return NULL; + priv = kzalloc(sizeof(*priv), GFP_ATOMIC); if (priv == NULL) goto fail; priv->key_idx = key_idx; - priv->tx_tfm_arc4 = crypto_alloc_cipher("arc4", 0, 0); - if (IS_ERR(priv->tx_tfm_arc4)) { - priv->tx_tfm_arc4 = NULL; - goto fail; - } - priv->tx_tfm_michael = crypto_alloc_shash("michael_mic", 0, 0); if (IS_ERR(priv->tx_tfm_michael)) { priv->tx_tfm_michael = NULL; goto fail; } - priv->rx_tfm_arc4 = crypto_alloc_cipher("arc4", 0, 0); - if (IS_ERR(priv->rx_tfm_arc4)) { - priv->rx_tfm_arc4 = NULL; - goto fail; - } - priv->rx_tfm_michael = crypto_alloc_shash("michael_mic", 0, 0); if (IS_ERR(priv->rx_tfm_michael)) { priv->rx_tfm_michael = NULL; @@ -124,9 +117,7 @@ static void *lib80211_tkip_init(int key_idx) fail: if (priv) { crypto_free_shash(priv->tx_tfm_michael); - crypto_free_cipher(priv->tx_tfm_arc4); crypto_free_shash(priv->rx_tfm_michael); - crypto_free_cipher(priv->rx_tfm_arc4); kfree(priv); } @@ -138,11 +129,9 @@ static void lib80211_tkip_deinit(void *priv) struct lib80211_tkip_data *_priv = priv; if (_priv) { crypto_free_shash(_priv->tx_tfm_michael); - crypto_free_cipher(_priv->tx_tfm_arc4); crypto_free_shash(_priv->rx_tfm_michael); - crypto_free_cipher(_priv->rx_tfm_arc4); } - kfree(priv); + kzfree(priv); } static inline u16 RotR1(u16 val) @@ -341,7 +330,6 @@ static int lib80211_tkip_encrypt(struct sk_buff *skb, int hdr_len, void *priv) int len; u8 rc4key[16], *pos, *icv; u32 crc; - int i; if (tkey->flags & IEEE80211_CRYPTO_TKIP_COUNTERMEASURES) { struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; @@ -366,9 +354,9 @@ static int lib80211_tkip_encrypt(struct sk_buff *skb, int hdr_len, void *priv) icv[2] = crc >> 16; icv[3] = crc >> 24; - crypto_cipher_setkey(tkey->tx_tfm_arc4, rc4key, 16); - for (i = 0; i < len + 4; i++) - crypto_cipher_encrypt_one(tkey->tx_tfm_arc4, pos + i, pos + i); + arc4_setkey(&tkey->tx_ctx_arc4, rc4key, 16); + arc4_crypt(&tkey->tx_ctx_arc4, pos, pos, len + 4); + return 0; } @@ -396,7 +384,6 @@ static int lib80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv) u8 icv[4]; u32 crc; int plen; - int i; hdr = (struct ieee80211_hdr *)skb->data; @@ -449,9 +436,8 @@ static int lib80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv) plen = skb->len - hdr_len - 12; - crypto_cipher_setkey(tkey->rx_tfm_arc4, rc4key, 16); - for (i = 0; i < plen + 4; i++) - crypto_cipher_decrypt_one(tkey->rx_tfm_arc4, pos + i, pos + i); + arc4_setkey(&tkey->rx_ctx_arc4, rc4key, 16); + arc4_crypt(&tkey->rx_ctx_arc4, pos, pos, plen + 4); crc = ~crc32_le(~0, pos, plen); icv[0] = crc; @@ -636,17 +622,17 @@ static int lib80211_tkip_set_key(void *key, int len, u8 * seq, void *priv) struct lib80211_tkip_data *tkey = priv; int keyidx; struct crypto_shash *tfm = tkey->tx_tfm_michael; - struct crypto_cipher *tfm2 = tkey->tx_tfm_arc4; + struct arc4_ctx *tfm2 = &tkey->tx_ctx_arc4; struct crypto_shash *tfm3 = tkey->rx_tfm_michael; - struct crypto_cipher *tfm4 = tkey->rx_tfm_arc4; + struct arc4_ctx *tfm4 = &tkey->rx_ctx_arc4; keyidx = tkey->key_idx; memset(tkey, 0, sizeof(*tkey)); tkey->key_idx = keyidx; tkey->tx_tfm_michael = tfm; - tkey->tx_tfm_arc4 = tfm2; + tkey->tx_ctx_arc4 = *tfm2; tkey->rx_tfm_michael = tfm3; - tkey->rx_tfm_arc4 = tfm4; + tkey->rx_ctx_arc4 = *tfm4; if (len == TKIP_KEY_LEN) { memcpy(tkey->key, key, TKIP_KEY_LEN); tkey->key_set = 1; diff --git a/net/wireless/lib80211_crypt_wep.c b/net/wireless/lib80211_crypt_wep.c index e127b6f7fc9f..dafc6f3571db 100644 --- a/net/wireless/lib80211_crypt_wep.c +++ b/net/wireless/lib80211_crypt_wep.c @@ -7,6 +7,7 @@ */ #include <linux/err.h> +#include <linux/fips.h> #include <linux/module.h> #include <linux/init.h> #include <linux/slab.h> @@ -18,7 +19,7 @@ #include <net/lib80211.h> -#include <linux/crypto.h> +#include <crypto/arc4.h> #include <linux/crc32.h> MODULE_AUTHOR("Jouni Malinen"); @@ -31,52 +32,31 @@ struct lib80211_wep_data { u8 key[WEP_KEY_LEN + 1]; u8 key_len; u8 key_idx; - struct crypto_cipher *tx_tfm; - struct crypto_cipher *rx_tfm; + struct arc4_ctx tx_ctx; + struct arc4_ctx rx_ctx; }; static void *lib80211_wep_init(int keyidx) { struct lib80211_wep_data *priv; + if (fips_enabled) + return NULL; + priv = kzalloc(sizeof(*priv), GFP_ATOMIC); if (priv == NULL) - goto fail; + return NULL; priv->key_idx = keyidx; - priv->tx_tfm = crypto_alloc_cipher("arc4", 0, 0); - if (IS_ERR(priv->tx_tfm)) { - priv->tx_tfm = NULL; - goto fail; - } - - priv->rx_tfm = crypto_alloc_cipher("arc4", 0, 0); - if (IS_ERR(priv->rx_tfm)) { - priv->rx_tfm = NULL; - goto fail; - } /* start WEP IV from a random value */ get_random_bytes(&priv->iv, 4); return priv; - - fail: - if (priv) { - crypto_free_cipher(priv->tx_tfm); - crypto_free_cipher(priv->rx_tfm); - kfree(priv); - } - return NULL; } static void lib80211_wep_deinit(void *priv) { - struct lib80211_wep_data *_priv = priv; - if (_priv) { - crypto_free_cipher(_priv->tx_tfm); - crypto_free_cipher(_priv->rx_tfm); - } - kfree(priv); + kzfree(priv); } /* Add WEP IV/key info to a frame that has at least 4 bytes of headroom */ @@ -128,7 +108,6 @@ static int lib80211_wep_encrypt(struct sk_buff *skb, int hdr_len, void *priv) u32 crc, klen, len; u8 *pos, *icv; u8 key[WEP_KEY_LEN + 3]; - int i; /* other checks are in lib80211_wep_build_iv */ if (skb_tailroom(skb) < 4) @@ -156,10 +135,8 @@ static int lib80211_wep_encrypt(struct sk_buff *skb, int hdr_len, void *priv) icv[2] = crc >> 16; icv[3] = crc >> 24; - crypto_cipher_setkey(wep->tx_tfm, key, klen); - - for (i = 0; i < len + 4; i++) - crypto_cipher_encrypt_one(wep->tx_tfm, pos + i, pos + i); + arc4_setkey(&wep->tx_ctx, key, klen); + arc4_crypt(&wep->tx_ctx, pos, pos, len + 4); return 0; } @@ -177,7 +154,6 @@ static int lib80211_wep_decrypt(struct sk_buff *skb, int hdr_len, void *priv) u32 crc, klen, plen; u8 key[WEP_KEY_LEN + 3]; u8 keyidx, *pos, icv[4]; - int i; if (skb->len < hdr_len + 8) return -1; @@ -198,9 +174,8 @@ static int lib80211_wep_decrypt(struct sk_buff *skb, int hdr_len, void *priv) /* Apply RC4 to data and compute CRC32 over decrypted data */ plen = skb->len - hdr_len - 8; - crypto_cipher_setkey(wep->rx_tfm, key, klen); - for (i = 0; i < plen + 4; i++) - crypto_cipher_decrypt_one(wep->rx_tfm, pos + i, pos + i); + arc4_setkey(&wep->rx_ctx, key, klen); + arc4_crypt(&wep->rx_ctx, pos, pos, plen + 4); crc = ~crc32_le(~0, pos, plen); icv[0] = crc; |