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mac80211: Helper function for marking STA authenticated

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Authentication exchange can be completed in both TX and RX paths for
SAE, so move this common functionality into a helper function to avoid
having to implement practically the same operations in two places when
extending SAE implementation in the following commits.

Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Jouni Malinen 2018-10-11 00:21:19 +03:00 committed by Johannes Berg
parent 506dbf90c1
commit fc107a9330
1 changed files with 22 additions and 12 deletions
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34
net/mac80211/mlme.c
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@ -2761,13 +2761,33 @@ static void ieee80211_auth_challenge(struct ieee80211_sub_if_data *sdata,
auth_data->key_idx, tx_flags);
}
static bool ieee80211_mark_sta_auth(struct ieee80211_sub_if_data *sdata,
const u8 *bssid)
{
struct sta_info *sta;
/* move station state to auth */
mutex_lock(&sdata->local->sta_mtx);
sta = sta_info_get(sdata, bssid);
if (!sta) {
WARN_ONCE(1, "%s: STA %pM not found", sdata->name, bssid);
return false;
}
if (sta_info_move_state(sta, IEEE80211_STA_AUTH)) {
sdata_info(sdata, "failed moving %pM to auth\n", bssid);
return false;
}
mutex_unlock(&sdata->local->sta_mtx);
return true;
}
static void ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata,
struct ieee80211_mgmt *mgmt, size_t len)
{
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
u8 bssid[ETH_ALEN];
u16 auth_alg, auth_transaction, status_code;
struct sta_info *sta;
struct ieee80211_event event = {
.type = MLME_EVENT,
.u.mlme.data = AUTH_EVENT,
@ -2850,18 +2870,8 @@ static void ieee80211_rx_mgmt_auth(struct ieee80211_sub_if_data *sdata,
return;
}
/* move station state to auth */
mutex_lock(&sdata->local->sta_mtx);
sta = sta_info_get(sdata, bssid);
if (!sta) {
WARN_ONCE(1, "%s: STA %pM not found", sdata->name, bssid);
if (!ieee80211_mark_sta_auth(sdata, bssid))
goto out_err;
}
if (sta_info_move_state(sta, IEEE80211_STA_AUTH)) {
sdata_info(sdata, "failed moving %pM to auth\n", bssid);
goto out_err;
}
mutex_unlock(&sdata->local->sta_mtx);
cfg80211_rx_mlme_mgmt(sdata->dev, (u8 *)mgmt, len);
return;