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mac80111: Add BIP-CMAC-256 cipher

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This allows mac80211 to configure BIP-CMAC-256 to the driver and also
use software-implementation within mac80211 when the driver does not
support this with hardware accelaration.

Signed-off-by: Jouni Malinen <jouni@qca.qualcomm.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Jouni Malinen
2015-01-24 19:52:08 +02:00
committed by Johannes Berg
parent 2b2ba0db1c
commit 56c52da2d5
11 changed files with 179 additions and 20 deletions
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13
net/mac80211/main.c
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@@ -671,7 +671,8 @@ static int ieee80211_init_cipher_suites(struct ieee80211_local *local)
WLAN_CIPHER_SUITE_GCMP_256,
/* keep last -- depends on hw flags! */
WLAN_CIPHER_SUITE_AES_CMAC
WLAN_CIPHER_SUITE_AES_CMAC,
WLAN_CIPHER_SUITE_BIP_CMAC_256,
};
if (local->hw.flags & IEEE80211_HW_SW_CRYPTO_CONTROL ||
@@ -710,7 +711,7 @@ static int ieee80211_init_cipher_suites(struct ieee80211_local *local)
local->hw.wiphy->n_cipher_suites = ARRAY_SIZE(cipher_suites);
if (!have_mfp)
local->hw.wiphy->n_cipher_suites--;
local->hw.wiphy->n_cipher_suites -= 2;
if (!have_wep) {
local->hw.wiphy->cipher_suites += 2;
@@ -736,9 +737,9 @@ static int ieee80211_init_cipher_suites(struct ieee80211_local *local)
if (have_wep)
n_suites += 2;
/* check if we have AES_CMAC */
/* check if we have AES_CMAC, BIP-CMAC-256 */
if (have_mfp)
n_suites++;
n_suites += 2;
suites = kmalloc(sizeof(u32) * n_suites, GFP_KERNEL);
if (!suites)
@@ -755,8 +756,10 @@ static int ieee80211_init_cipher_suites(struct ieee80211_local *local)
suites[w++] = WLAN_CIPHER_SUITE_WEP104;
}
if (have_mfp)
if (have_mfp) {
suites[w++] = WLAN_CIPHER_SUITE_AES_CMAC;
suites[w++] = WLAN_CIPHER_SUITE_BIP_CMAC_256;
}
for (r = 0; r < local->hw.n_cipher_schemes; r++)
suites[w++] = cs[r].cipher;