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cfg80211: basic support for PBSS network type

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PBSS (Personal Basic Service Set) is a new BSS type for DMG
networks. It is similar to infrastructure BSS, having an AP-like
entity called PCP (PBSS Control Point), but it has few differences.
PBSS support is mandatory for 11ad devices.

Add support for PBSS by introducing a new PBSS flag attribute.
The PBSS flag is used in the START_AP command to request starting
a PCP instead of an AP, and in the CONNECT command to request
connecting to a PCP instead of an AP.

Signed-off-by: Lior David <[email protected]>
Signed-off-by: Johannes Berg <[email protected]>
This commit is contained in:
Lior David 2016-01-28 10:58:25 +02:00 • committed by Johannes Berg
commit 34d505193b
5 changed files with 41 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

11
net/wireless/nl80211.c
View file

@ -401,6 +401,7 @@ static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
[NL80211_ATTR_NETNS_FD] = { .type = NLA_U32 },
[NL80211_ATTR_SCHED_SCAN_DELAY] = { .type = NLA_U32 },
[NL80211_ATTR_REG_INDOOR] = { .type = NLA_FLAG },
[NL80211_ATTR_PBSS] = { .type = NLA_FLAG },
};
/* policy for the key attributes */
@ -3461,6 +3462,10 @@ static int nl80211_start_ap(struct sk_buff *skb, struct genl_info *info)
return PTR_ERR(params.acl);
}
params.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
if (params.pbss && !rdev->wiphy.bands[IEEE80211_BAND_60GHZ])
return -EOPNOTSUPP;
wdev_lock(wdev);
err = rdev_start_ap(rdev, dev, &params);
if (!err) {
@ -7980,6 +7985,12 @@ static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
connect.flags |= ASSOC_REQ_USE_RRM;
}
connect.pbss = nla_get_flag(info->attrs[NL80211_ATTR_PBSS]);
if (connect.pbss && !rdev->wiphy.bands[IEEE80211_BAND_60GHZ]) {
kzfree(connkeys);
return -EOPNOTSUPP;
}
wdev_lock(dev->ieee80211_ptr);
err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
wdev_unlock(dev->ieee80211_ptr);

9
net/wireless/sme.c
View file

@ -264,7 +264,7 @@ static struct cfg80211_bss *cfg80211_get_conn_bss(struct wireless_dev *wdev)
wdev->conn->params.bssid,
wdev->conn->params.ssid,
wdev->conn->params.ssid_len,
IEEE80211_BSS_TYPE_ESS,
wdev->conn_bss_type,
IEEE80211_PRIVACY(wdev->conn->params.privacy));
if (!bss)
return NULL;
@ -687,7 +687,7 @@ void __cfg80211_connect_result(struct net_device *dev, const u8 *bssid,
WARN_ON_ONCE(!wiphy_to_rdev(wdev->wiphy)->ops->connect);
bss = cfg80211_get_bss(wdev->wiphy, NULL, bssid,
wdev->ssid, wdev->ssid_len,
IEEE80211_BSS_TYPE_ESS,
wdev->conn_bss_type,
IEEE80211_PRIVACY_ANY);
if (bss)
cfg80211_hold_bss(bss_from_pub(bss));
@ -846,7 +846,7 @@ void cfg80211_roamed(struct net_device *dev,
bss = cfg80211_get_bss(wdev->wiphy, channel, bssid, wdev->ssid,
wdev->ssid_len,
IEEE80211_BSS_TYPE_ESS, IEEE80211_PRIVACY_ANY);
wdev->conn_bss_type, IEEE80211_PRIVACY_ANY);
if (WARN_ON(!bss))
return;
@ -1017,6 +1017,9 @@ int cfg80211_connect(struct cfg80211_registered_device *rdev,
memcpy(wdev->ssid, connect->ssid, connect->ssid_len);
wdev->ssid_len = connect->ssid_len;
wdev->conn_bss_type = connect->pbss ? IEEE80211_BSS_TYPE_PBSS :
IEEE80211_BSS_TYPE_ESS;
if (!rdev->ops->connect)
err = cfg80211_sme_connect(wdev, connect, prev_bssid);
else