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| author | Johannes Berg <johannes.berg@intel.com> | 2013-02-20 01:02:38 +0100 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2013-03-06 16:35:43 +0100 |
| commit | b56cf720833c4a9d7e6ed96cc9f5c1a1091ff3bc (patch) | |
| tree | b6b07a2f8945aad1f69019853fba44440fce8b41 /net/wireless | |
| parent | cdc89b97bf23ae3a7869804b6dc13be011ec8f4c (diff) | |
| download | linux-stable-b56cf720833c4a9d7e6ed96cc9f5c1a1091ff3bc.tar.gz linux-stable-b56cf720833c4a9d7e6ed96cc9f5c1a1091ff3bc.tar.bz2 linux-stable-b56cf720833c4a9d7e6ed96cc9f5c1a1091ff3bc.zip | |
nl80211: conditionally add back TCP WoWLAN information
Add back the previously removed TCP WoWLAN information,
but only if userspace is prepared to deal with large
wiphy capability data dumps.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless')
| -rw-r--r-- | net/wireless/nl80211.c | 48 |
1 files changed, 46 insertions, 2 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 7701538a0882..c73a4dd4e19f 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -913,8 +913,49 @@ nla_put_failure: } #ifdef CONFIG_PM +static int nl80211_send_wowlan_tcp_caps(struct cfg80211_registered_device *rdev, + struct sk_buff *msg) +{ + const struct wiphy_wowlan_tcp_support *tcp = rdev->wiphy.wowlan.tcp; + struct nlattr *nl_tcp; + + if (!tcp) + return 0; + + nl_tcp = nla_nest_start(msg, NL80211_WOWLAN_TRIG_TCP_CONNECTION); + if (!nl_tcp) + return -ENOBUFS; + + if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD, + tcp->data_payload_max)) + return -ENOBUFS; + + if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD, + tcp->data_payload_max)) + return -ENOBUFS; + + if (tcp->seq && nla_put_flag(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_SEQ)) + return -ENOBUFS; + + if (tcp->tok && nla_put(msg, NL80211_WOWLAN_TCP_DATA_PAYLOAD_TOKEN, + sizeof(*tcp->tok), tcp->tok)) + return -ENOBUFS; + + if (nla_put_u32(msg, NL80211_WOWLAN_TCP_DATA_INTERVAL, + tcp->data_interval_max)) + return -ENOBUFS; + + if (nla_put_u32(msg, NL80211_WOWLAN_TCP_WAKE_PAYLOAD, + tcp->wake_payload_max)) + return -ENOBUFS; + + nla_nest_end(msg, nl_tcp); + return 0; +} + static int nl80211_send_wowlan(struct sk_buff *msg, - struct cfg80211_registered_device *dev) + struct cfg80211_registered_device *dev, + bool large) { struct nlattr *nl_wowlan; @@ -956,6 +997,9 @@ static int nl80211_send_wowlan(struct sk_buff *msg, return -ENOBUFS; } + if (large && nl80211_send_wowlan_tcp_caps(dev, msg)) + return -ENOBUFS; + nla_nest_end(msg, nl_wowlan); return 0; @@ -1392,7 +1436,7 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *dev, break; case 6: #ifdef CONFIG_PM - if (nl80211_send_wowlan(msg, dev)) + if (nl80211_send_wowlan(msg, dev, split)) goto nla_put_failure; (*split_start)++; if (split) |