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qtnfmac: support MAC address based access control

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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>
This commit is contained in:
Vasily Ulyanov
2017-12-19 14:28:56 +03:00
committed by Kalle Valo
parent 7a4d3a3bc8
commit f1398fd2dd
7 changed files with 137 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

62
drivers/net/wireless/quantenna/qtnfmac/commands.c
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@@ -162,6 +162,14 @@ static void qtnf_cmd_tlv_ie_set_add(struct sk_buff *cmd_skb, u8 frame_type,
memcpy(tlv->ie_data, buf, len);
}
static inline size_t qtnf_cmd_acl_data_size(const struct cfg80211_acl_data *acl)
{
size_t size = sizeof(struct qlink_acl_data) +
acl->n_acl_entries * sizeof(struct qlink_mac_address);
return size;
}
static bool qtnf_cmd_start_ap_can_fit(const struct qtnf_vif *vif,
const struct cfg80211_ap_settings *s)
{
@@ -178,6 +186,9 @@ static bool qtnf_cmd_start_ap_can_fit(const struct qtnf_vif *vif,
if (cfg80211_chandef_valid(&s->chandef))
len += sizeof(struct qlink_tlv_chandef);
if (s->acl)
len += qtnf_cmd_acl_data_size(s->acl);
if (len > (sizeof(struct qlink_cmd) + QTNF_MAX_CMD_BUF_SIZE)) {
pr_err("VIF%u.%u: can not fit AP settings: %u\n",
vif->mac->macid, vif->vifid, len);
@@ -283,6 +294,16 @@ int qtnf_cmd_send_start_ap(struct qtnf_vif *vif,
memcpy(tlv->val, s->vht_cap, sizeof(*s->vht_cap));
}
if (s->acl) {
size_t acl_size = qtnf_cmd_acl_data_size(s->acl);
struct qlink_tlv_hdr *tlv =
skb_put(cmd_skb, sizeof(*tlv) + acl_size);
tlv->type = cpu_to_le16(QTN_TLV_ID_ACL_DATA);
tlv->len = cpu_to_le16(acl_size);
qlink_acl_data_cfg2q(s->acl, (struct qlink_acl_data *)tlv->val);
}
qtnf_bus_lock(vif->mac->bus);
ret = qtnf_cmd_send(vif->mac->bus, cmd_skb, &res_code);
@@ -1206,6 +1227,7 @@ qtnf_cmd_resp_proc_mac_info(struct qtnf_wmac *mac,
mac_info->radar_detect_widths =
qlink_chan_width_mask_to_nl(le16_to_cpu(
resp_info->radar_detect_widths));
mac_info->max_acl_mac_addrs = le32_to_cpu(resp_info->max_acl_mac_addrs);
memcpy(&mac_info->ht_cap_mod_mask, &resp_info->ht_cap_mod_mask,
sizeof(mac_info->ht_cap_mod_mask));
@@ -2609,3 +2631,43 @@ int qtnf_cmd_start_cac(const struct qtnf_vif *vif,
return ret;
}
int qtnf_cmd_set_mac_acl(const struct qtnf_vif *vif,
const struct cfg80211_acl_data *params)
{
struct qtnf_bus *bus = vif->mac->bus;
struct sk_buff *cmd_skb;
struct qlink_cmd_set_mac_acl *cmd;
u16 res_code;
int ret;
cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
QLINK_CMD_SET_MAC_ACL,
sizeof(*cmd) +
qtnf_cmd_acl_data_size(params));
if (unlikely(!cmd_skb))
return -ENOMEM;
cmd = (struct qlink_cmd_set_mac_acl *)cmd_skb->data;
qlink_acl_data_cfg2q(params, &cmd->acl);
qtnf_bus_lock(bus);
ret = qtnf_cmd_send(bus, cmd_skb, &res_code);
qtnf_bus_unlock(bus);
if (unlikely(ret))
return ret;
switch (res_code) {
case QLINK_CMD_RESULT_OK:
break;
case QLINK_CMD_RESULT_INVALID:
ret = -EINVAL;
break;
default:
ret = -EOPNOTSUPP;
break;
}
return ret;
}