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brcmfmac: Use seq/seq_len and set iv_initialize when plumbing of rxiv in (GTK) keys 

When plumbing rxiv for (GTK) keys, current code does not use seq/seq_len
when present nor set iv_initialized for iovar wsec_key. This could
result in missing broadcast traffic after GTK rekey. The fix is setting
iv_initialized and using seq/seq_len for iovar wsec_key.

Signed-off-by: Soontak Lee <soontak.lee@cypress.com>
Signed-off-by: Chi-Hsien Lin <chi-hsien.lin@cypress.com>
Signed-off-by: Wright Feng <wright.feng@cypress.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/1588770201-54361-4-git-send-email-wright.feng@cypress.com
This commit is contained in:
Soontak Lee 2020-05-06 08:03:21 -05:00 committed by Kalle Valo
parent 30fb1b2729
commit 78db077db6
1 changed files with 11 additions and 0 deletions
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11
drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
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@ -2469,6 +2469,17 @@ brcmf_cfg80211_add_key(struct wiphy *wiphy, struct net_device *ndev,
if (!ext_key)
key->flags = BRCMF_PRIMARY_KEY;
if (params->seq && params->seq_len == 6) {
/* rx iv */
u8 *ivptr;
ivptr = (u8 *)params->seq;
key->rxiv.hi = (ivptr[5] << 24) | (ivptr[4] << 16) |
(ivptr[3] << 8) | ivptr[2];
key->rxiv.lo = (ivptr[1] << 8) | ivptr[0];
key->iv_initialized = true;
}
switch (params->cipher) {
case WLAN_CIPHER_SUITE_WEP40:
key->algo = CRYPTO_ALGO_WEP1;