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qtnfmac: enable source MAC address randomization support

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Enable support for source MAC address randomization of probe request
frames. Pass addr/mask randomization parameters to firmware.

Signed-off-by: Andrey Shevchenko <ashevchenko@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Andrey Shevchenko 2018-05-31 12:10:58 +03:00 committed by Kalle Valo
parent ed9f34bb9d
commit 6fbef9540a
3 changed files with 48 additions and 0 deletions
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3
drivers/net/wireless/quantenna/qtnfmac/cfg80211.c
View File

@ -1014,6 +1014,9 @@ int qtnf_wiphy_register(struct qtnf_hw_info *hw_info, struct qtnf_wmac *mac)
if (hw_info->hw_capab & QLINK_HW_CAPAB_STA_INACT_TIMEOUT)
wiphy->features |= NL80211_FEATURE_INACTIVITY_TIMER;
if (hw_info->hw_capab & QLINK_HW_CAPAB_SCAN_RANDOM_MAC_ADDR)
wiphy->features |= NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
if (hw_info->hw_capab & QLINK_HW_CAPAB_REG_UPDATE) {
wiphy->regulatory_flags |= REGULATORY_STRICT_REG |
REGULATORY_CUSTOM_REG;

25
drivers/net/wireless/quantenna/qtnfmac/commands.c
View File

@ -2234,6 +2234,22 @@ static void qtnf_cmd_channel_tlv_add(struct sk_buff *cmd_skb,
qchan->chan.flags = cpu_to_le32(flags);
}
static void qtnf_cmd_randmac_tlv_add(struct sk_buff *cmd_skb,
const u8 *mac_addr,
const u8 *mac_addr_mask)
{
struct qlink_random_mac_addr *randmac;
struct qlink_tlv_hdr *hdr =
skb_put(cmd_skb, sizeof(*hdr) + sizeof(*randmac));
hdr->type = cpu_to_le16(QTN_TLV_ID_RANDOM_MAC_ADDR);
hdr->len = cpu_to_le16(sizeof(*randmac));
randmac = (struct qlink_random_mac_addr *)hdr->val;
memcpy(randmac->mac_addr, mac_addr, ETH_ALEN);
memcpy(randmac->mac_addr_mask, mac_addr_mask, ETH_ALEN);
}
int qtnf_cmd_send_scan(struct qtnf_wmac *mac)
{
struct sk_buff *cmd_skb;
@ -2291,6 +2307,15 @@ int qtnf_cmd_send_scan(struct qtnf_wmac *mac)
}
}
if (scan_req->flags & NL80211_SCAN_FLAG_RANDOM_ADDR) {
pr_debug("MAC%u: scan with random addr=%pM, mask=%pM\n",
mac->macid,
scan_req->mac_addr, scan_req->mac_addr_mask);
qtnf_cmd_randmac_tlv_add(cmd_skb, scan_req->mac_addr,
scan_req->mac_addr_mask);
}
ret = qtnf_cmd_send(mac->bus, cmd_skb, &res_code);
if (unlikely(ret))

20
drivers/net/wireless/quantenna/qtnfmac/qlink.h
View File

@ -69,11 +69,14 @@ struct qlink_msg_header {
* associated STAs due to inactivity. Inactivity timeout period is taken
* from QLINK_CMD_START_AP parameters.
* @QLINK_HW_CAPAB_DFS_OFFLOAD: device implements DFS offload functionality
* @QLINK_HW_CAPAB_SCAN_RANDOM_MAC_ADDR: device supports MAC Address
* Randomization in probe requests.
*/
enum qlink_hw_capab {
QLINK_HW_CAPAB_REG_UPDATE = BIT(0),
QLINK_HW_CAPAB_STA_INACT_TIMEOUT = BIT(1),
QLINK_HW_CAPAB_DFS_OFFLOAD = BIT(2),
QLINK_HW_CAPAB_SCAN_RANDOM_MAC_ADDR = BIT(3),
};
enum qlink_iface_type {
@ -1089,6 +1092,7 @@ enum qlink_tlv_id {
QTN_TLV_ID_HW_ID = 0x0405,
QTN_TLV_ID_CALIBRATION_VER = 0x0406,
QTN_TLV_ID_UBOOT_VER = 0x0407,
QTN_TLV_ID_RANDOM_MAC_ADDR = 0x0408,
};
struct qlink_tlv_hdr {
@ -1360,4 +1364,20 @@ struct qlink_sta_stats {
u8 rsvd[1];
};
/**
* struct qlink_random_mac_addr - data for QTN_TLV_ID_RANDOM_MAC_ADDR TLV
*
* Specifies MAC address mask/value for generation random MAC address
* during scan.
*
* @mac_addr: MAC address used with randomisation
* @mac_addr_mask: MAC address mask used with randomisation, bits that
* are 0 in the mask should be randomised, bits that are 1 should
* be taken from the @mac_addr
*/
struct qlink_random_mac_addr {
u8 mac_addr[ETH_ALEN];
u8 mac_addr_mask[ETH_ALEN];
} __packed;
#endif /* _QTN_QLINK_H_ */