linux_dsm_epyc7002/drivers/net/wireless/quantenna/qtnfmac/qlink_util.c
Vasily Ulyanov f1398fd2dd qtnfmac: support MAC address based access control
This allows a running AP to blacklist STAs by their MAC addresses
respecting the configured policy (either accept or deny unless listed).
It can be setup on .start_ap or with .set_mac_acl commands.

Signed-off-by: Vasily Ulyanov <vulyanov@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
2018-01-09 14:11:23 +02:00

197 lines
5.1 KiB
C

/*
* Copyright (c) 2015-2016 Quantenna Communications, Inc.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
*/
#include <linux/nl80211.h>
#include "qlink_util.h"
u16 qlink_iface_type_to_nl_mask(u16 qlink_type)
{
u16 result = 0;
switch (qlink_type) {
case QLINK_IFTYPE_AP:
result |= BIT(NL80211_IFTYPE_AP);
break;
case QLINK_IFTYPE_STATION:
result |= BIT(NL80211_IFTYPE_STATION);
break;
case QLINK_IFTYPE_ADHOC:
result |= BIT(NL80211_IFTYPE_ADHOC);
break;
case QLINK_IFTYPE_MONITOR:
result |= BIT(NL80211_IFTYPE_MONITOR);
break;
case QLINK_IFTYPE_WDS:
result |= BIT(NL80211_IFTYPE_WDS);
break;
case QLINK_IFTYPE_AP_VLAN:
result |= BIT(NL80211_IFTYPE_AP_VLAN);
break;
}
return result;
}
u8 qlink_chan_width_mask_to_nl(u16 qlink_mask)
{
u8 result = 0;
if (qlink_mask & BIT(QLINK_CHAN_WIDTH_5))
result |= BIT(NL80211_CHAN_WIDTH_5);
if (qlink_mask & BIT(QLINK_CHAN_WIDTH_10))
result |= BIT(NL80211_CHAN_WIDTH_10);
if (qlink_mask & BIT(QLINK_CHAN_WIDTH_20_NOHT))
result |= BIT(NL80211_CHAN_WIDTH_20_NOHT);
if (qlink_mask & BIT(QLINK_CHAN_WIDTH_20))
result |= BIT(NL80211_CHAN_WIDTH_20);
if (qlink_mask & BIT(QLINK_CHAN_WIDTH_40))
result |= BIT(NL80211_CHAN_WIDTH_40);
if (qlink_mask & BIT(QLINK_CHAN_WIDTH_80))
result |= BIT(NL80211_CHAN_WIDTH_80);
if (qlink_mask & BIT(QLINK_CHAN_WIDTH_80P80))
result |= BIT(NL80211_CHAN_WIDTH_80P80);
if (qlink_mask & BIT(QLINK_CHAN_WIDTH_160))
result |= BIT(NL80211_CHAN_WIDTH_160);
return result;
}
static enum nl80211_chan_width qlink_chanwidth_to_nl(u8 qlw)
{
switch (qlw) {
case QLINK_CHAN_WIDTH_20_NOHT:
return NL80211_CHAN_WIDTH_20_NOHT;
case QLINK_CHAN_WIDTH_20:
return NL80211_CHAN_WIDTH_20;
case QLINK_CHAN_WIDTH_40:
return NL80211_CHAN_WIDTH_40;
case QLINK_CHAN_WIDTH_80:
return NL80211_CHAN_WIDTH_80;
case QLINK_CHAN_WIDTH_80P80:
return NL80211_CHAN_WIDTH_80P80;
case QLINK_CHAN_WIDTH_160:
return NL80211_CHAN_WIDTH_160;
case QLINK_CHAN_WIDTH_5:
return NL80211_CHAN_WIDTH_5;
case QLINK_CHAN_WIDTH_10:
return NL80211_CHAN_WIDTH_10;
default:
return -1;
}
}
static u8 qlink_chanwidth_nl_to_qlink(enum nl80211_chan_width nlwidth)
{
switch (nlwidth) {
case NL80211_CHAN_WIDTH_20_NOHT:
return QLINK_CHAN_WIDTH_20_NOHT;
case NL80211_CHAN_WIDTH_20:
return QLINK_CHAN_WIDTH_20;
case NL80211_CHAN_WIDTH_40:
return QLINK_CHAN_WIDTH_40;
case NL80211_CHAN_WIDTH_80:
return QLINK_CHAN_WIDTH_80;
case NL80211_CHAN_WIDTH_80P80:
return QLINK_CHAN_WIDTH_80P80;
case NL80211_CHAN_WIDTH_160:
return QLINK_CHAN_WIDTH_160;
case NL80211_CHAN_WIDTH_5:
return QLINK_CHAN_WIDTH_5;
case NL80211_CHAN_WIDTH_10:
return QLINK_CHAN_WIDTH_10;
default:
return -1;
}
}
void qlink_chandef_q2cfg(struct wiphy *wiphy,
const struct qlink_chandef *qch,
struct cfg80211_chan_def *chdef)
{
struct ieee80211_channel *chan;
chan = ieee80211_get_channel(wiphy, le16_to_cpu(qch->chan.center_freq));
chdef->chan = chan;
chdef->center_freq1 = le16_to_cpu(qch->center_freq1);
chdef->center_freq2 = le16_to_cpu(qch->center_freq2);
chdef->width = qlink_chanwidth_to_nl(qch->width);
}
void qlink_chandef_cfg2q(const struct cfg80211_chan_def *chdef,
struct qlink_chandef *qch)
{
struct ieee80211_channel *chan = chdef->chan;
qch->chan.hw_value = cpu_to_le16(chan->hw_value);
qch->chan.center_freq = cpu_to_le16(chan->center_freq);
qch->chan.flags = cpu_to_le32(chan->flags);
qch->center_freq1 = cpu_to_le16(chdef->center_freq1);
qch->center_freq2 = cpu_to_le16(chdef->center_freq2);
qch->width = qlink_chanwidth_nl_to_qlink(chdef->width);
}
enum qlink_hidden_ssid qlink_hidden_ssid_nl2q(enum nl80211_hidden_ssid nl_val)
{
switch (nl_val) {
case NL80211_HIDDEN_SSID_ZERO_LEN:
return QLINK_HIDDEN_SSID_ZERO_LEN;
case NL80211_HIDDEN_SSID_ZERO_CONTENTS:
return QLINK_HIDDEN_SSID_ZERO_CONTENTS;
case NL80211_HIDDEN_SSID_NOT_IN_USE:
default:
return QLINK_HIDDEN_SSID_NOT_IN_USE;
}
}
bool qtnf_utils_is_bit_set(const u8 *arr, unsigned int bit,
unsigned int arr_max_len)
{
unsigned int idx = bit / BITS_PER_BYTE;
u8 mask = 1 << (bit - (idx * BITS_PER_BYTE));
if (idx >= arr_max_len)
return false;
return arr[idx] & mask;
}
void qlink_acl_data_cfg2q(const struct cfg80211_acl_data *acl,
struct qlink_acl_data *qacl)
{
switch (acl->acl_policy) {
case NL80211_ACL_POLICY_ACCEPT_UNLESS_LISTED:
qacl->policy =
cpu_to_le32(QLINK_ACL_POLICY_ACCEPT_UNLESS_LISTED);
break;
case NL80211_ACL_POLICY_DENY_UNLESS_LISTED:
qacl->policy = cpu_to_le32(QLINK_ACL_POLICY_DENY_UNLESS_LISTED);
break;
}
qacl->num_entries = cpu_to_le32(acl->n_acl_entries);
memcpy(qacl->mac_addrs, acl->mac_addrs,
acl->n_acl_entries * sizeof(*qacl->mac_addrs));
}