diff options
| author | Jérôme Pouiller <jerome.pouiller@silabs.com> | 2020-08-25 11:58:21 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2020-08-28 13:19:50 +0300 |
| commit | 0a3279d39c92a231a6b73003eaa2032a521683c5 (patch) | |
| tree | de34641677379990387394e752814c59bf24490a /drivers/staging/wfx/key.c | |
| parent | 152df50609a694a559a25a34ae035c31106459f8 (diff) | |
| download | linux-0a3279d39c92a231a6b73003eaa2032a521683c5.tar.xz | |
staging: wfx: fix support for cipher AES_CMAC (multicast PMF)
When MFP is enabled, the multicast management frames are not protected,
in fact. Instead, but they should include an IE containing the MMIC of
the frames (i.e. a cryptographic signature).
Until now, the driver didn't correctly detect this kind of frames (they
are not marked protected but they are associated to a key) and didn't
ask to the device to encrypt them.
In add, the device is not able to generate the IE itself. Mac80211 has
to generate the IE and let the device compute the MMIC.
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20200825085828.399505-5-Jerome.Pouiller@silabs.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/staging/wfx/key.c')
| -rw-r--r-- | drivers/staging/wfx/key.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/staging/wfx/key.c b/drivers/staging/wfx/key.c index 6165df59ecf9..728e5f8d3b7c 100644 --- a/drivers/staging/wfx/key.c +++ b/drivers/staging/wfx/key.c @@ -198,8 +198,8 @@ static int wfx_add_key(struct wfx_vif *wvif, struct ieee80211_sta *sta, else k.type = fill_sms4_group(&k.key.wapi_group_key, key); } else if (key->cipher == WLAN_CIPHER_SUITE_AES_CMAC) { - k.type = fill_aes_cmac_group(&k.key.igtk_group_key, key, - &seq); + k.type = fill_aes_cmac_group(&k.key.igtk_group_key, key, &seq); + key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIE; } else { dev_warn(wdev->dev, "unsupported key type %d\n", key->cipher); wfx_free_key(wdev, idx); |