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nl80211: send netdetect configuration info in NL80211_CMD_GET_WOWLAN

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Send the netdetect configuration information in the response to
NL8021_CMD_GET_WOWLAN commands.  This includes the scan interval,
SSIDs to match and frequencies to scan.

Additionally, add the NL80211_WOWLAN_TRIG_NET_DETECT with
NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED.

Signed-off-by: Luciano Coelho <luciano.coelho@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Luciano Coelho 2015-01-09 14:06:37 +02:00 committed by Johannes Berg
parent ef51fb1d1c
commit 75453ccb61
2 changed files with 55 additions and 1 deletions
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4
include/uapi/linux/nl80211.h
View file

@ -3734,7 +3734,9 @@ struct nl80211_pattern_support {
* same attributes used with @NL80211_CMD_START_SCHED_SCAN. It
* specifies how the scan is performed (e.g. the interval and the
* channels to scan) as well as the scan results that will
* trigger a wake (i.e. the matchsets).
* trigger a wake (i.e. the matchsets). This attribute is also
* sent in a response to @NL80211_CMD_GET_WIPHY, indicating the
* number of match sets supported by the driver (u32).
* @NL80211_WOWLAN_TRIG_NET_DETECT_RESULTS: nested attribute
* containing an array with information about what triggered the
* wake up. If no elements are present in the array, it means

52
net/wireless/nl80211.c
View file

@ -1088,6 +1088,11 @@ static int nl80211_send_wowlan(struct sk_buff *msg,
return -ENOBUFS;
}
if ((rdev->wiphy.wowlan->flags & WIPHY_WOWLAN_NET_DETECT) &&
nla_put_u32(msg, NL80211_WOWLAN_TRIG_NET_DETECT,
rdev->wiphy.wowlan->max_nd_match_sets))
return -ENOBUFS;
if (large && nl80211_send_wowlan_tcp_caps(rdev, msg))
return -ENOBUFS;
@ -8747,6 +8752,48 @@ static int nl80211_send_wowlan_tcp(struct sk_buff *msg,
return 0;
}
static int nl80211_send_wowlan_nd(struct sk_buff *msg,
struct cfg80211_sched_scan_request *req)
{
struct nlattr *nd, *freqs, *matches, *match;
int i;
if (!req)
return 0;
nd = nla_nest_start(msg, NL80211_WOWLAN_TRIG_NET_DETECT);
if (!nd)
return -ENOBUFS;
if (nla_put_u32(msg, NL80211_ATTR_SCHED_SCAN_INTERVAL, req->interval))
return -ENOBUFS;
freqs = nla_nest_start(msg, NL80211_ATTR_SCAN_FREQUENCIES);
if (!freqs)
return -ENOBUFS;
for (i = 0; i < req->n_channels; i++)
nla_put_u32(msg, i, req->channels[i]->center_freq);
nla_nest_end(msg, freqs);
if (req->n_match_sets) {
matches = nla_nest_start(msg, NL80211_ATTR_SCHED_SCAN_MATCH);
for (i = 0; i < req->n_match_sets; i++) {
match = nla_nest_start(msg, i);
nla_put(msg, NL80211_SCHED_SCAN_MATCH_ATTR_SSID,
req->match_sets[i].ssid.ssid_len,
req->match_sets[i].ssid.ssid);
nla_nest_end(msg, match);
}
nla_nest_end(msg, matches);
}
nla_nest_end(msg, nd);
return 0;
}
static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
{
struct cfg80211_registered_device *rdev = info->user_ptr[0];
@ -8804,6 +8851,11 @@ static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
rdev->wiphy.wowlan_config->tcp))
goto nla_put_failure;
if (nl80211_send_wowlan_nd(
msg,
rdev->wiphy.wowlan_config->nd_config))
goto nla_put_failure;
nla_nest_end(msg, nl_wowlan);
}