On 7/10/2022 6:08 PM, Kieran Frewen wrote:
With the kernel able to send both short and long S1G beacons, include
the ability for setting the short beacon period.
Signed-off-by: Kieran Frewen <kieran.frewen@xxxxxxxxxxxxxx>
Signed-off-by: Bassem Dawood <bassem@xxxxxxxxxxxxxx>
---
include/uapi/linux/nl80211.h | 6 ++++++
net/wireless/nl80211.c | 4 ++++
2 files changed, 10 insertions(+)
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 89f64f46b98d..bd6e2cae1dd3 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -2694,6 +2694,8 @@ enum nl80211_commands {
* connection. Used with %NL80211_CMD_CONNECT. If this attribute is not
* included in NL80211_CMD_CONNECT drivers must not perform MLO connection.
*
+ * @NL80211_ATTR_SHORT_BEACON_PERIOD: S1G short beacon period in TUs.
+ *
* @NUM_NL80211_ATTR: total number of nl80211_attrs available
* @NL80211_ATTR_MAX: highest attribute number currently defined
* @__NL80211_ATTR_AFTER_LAST: internal use
@@ -3214,6 +3216,8 @@ enum nl80211_attrs {
NL80211_ATTR_MLO_SUPPORT,
+ NL80211_ATTR_SHORT_BEACON_PERIOD,
+
/* add attributes here, update the policy in nl80211.c */
__NL80211_ATTR_AFTER_LAST,
@@ -4890,6 +4894,7 @@ enum nl80211_bss_scan_width {
* Contains a nested array of signal strength attributes (u8, dBm),
* using the nesting index as the antenna number.
* @NL80211_BSS_FREQUENCY_OFFSET: frequency offset in KHz
+ * @NL80211_BSS_SHORT_BEACON_PERIOD: S1G short beacon period in TUs
* @__NL80211_BSS_AFTER_LAST: internal
* @NL80211_BSS_MAX: highest BSS attribute
*/
@@ -4915,6 +4920,7 @@ enum nl80211_bss {
NL80211_BSS_PARENT_BSSID,
NL80211_BSS_CHAIN_SIGNAL,
NL80211_BSS_FREQUENCY_OFFSET,
+ NL80211_BSS_SHORT_BEACON_PERIOD,
please rebase against latest wireless-next since a new attribute
NL80211_BSS_MLO_LINK_ID was very recently added
/* keep last */
__NL80211_BSS_AFTER_LAST,
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 6a45801c783c..ab47e4130141 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -798,6 +798,7 @@ static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
NLA_POLICY_RANGE(NLA_U8, 0, IEEE80211_MLD_MAX_NUM_LINKS),
[NL80211_ATTR_MLD_ADDR] = NLA_POLICY_EXACT_LEN(ETH_ALEN),
[NL80211_ATTR_MLO_SUPPORT] = { .type = NLA_FLAG },
+ [NL80211_ATTR_SHORT_BEACON_PERIOD] = { .type = NLA_U32 },
entire range of u32 values are valid?
IEEE Std 802.11-2020 Figure 9-684—Short Beacon Interval element format
indicates a 2 octet field, so consider either changing the type to U16
or use NLA_POLICY_RANGE() to align with the MIB definition:
dot11ShortBeaconPeriod OBJECT-TYPE
SYNTAX Unsigned32 (1..65535)
};
/* policy for the key attributes */
@@ -5654,6 +5655,9 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
params->dtim_period =
nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
+ if (info->attrs[NL80211_ATTR_SHORT_BEACON_PERIOD])
+ params->short_beacon_period =
+ nla_get_u32(info->attrs[NL80211_ATTR_SHORT_BEACON_PERIOD]);
err = cfg80211_validate_beacon_int(rdev, dev->ieee80211_ptr->iftype,
params->beacon_interval);
