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-rw-r--r--include/linux/nl80211.h10
-rw-r--r--include/net/cfg80211.h7
-rw-r--r--net/wireless/core.c16
-rw-r--r--net/wireless/nl80211.c131
-rw-r--r--net/wireless/wext-compat.c10
5 files changed, 159 insertions, 15 deletions
diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h
index 8e6384f..28ba20f 100644
--- a/include/linux/nl80211.h
+++ b/include/linux/nl80211.h
@@ -416,6 +416,9 @@ enum nl80211_commands {
NL80211_CMD_ACTION,
NL80211_CMD_ACTION_TX_STATUS,
+ NL80211_CMD_SET_POWER_SAVE,
+ NL80211_CMD_GET_POWER_SAVE,
+
/* add new commands above here */
/* used to define NL80211_CMD_MAX below */
@@ -837,6 +840,8 @@ enum nl80211_attrs {
NL80211_ATTR_ACK,
+ NL80211_ATTR_PS_STATE,
+
/* add attributes here, update the policy in nl80211.c */
__NL80211_ATTR_AFTER_LAST,
@@ -1573,4 +1578,9 @@ enum nl80211_band {
NL80211_BAND_5GHZ,
};
+enum nl80211_ps_state {
+ NL80211_PS_DISABLED,
+ NL80211_PS_ENABLED,
+};
+
#endif /* __LINUX_NL80211_H */
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 7188934..3d134a1 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -1150,7 +1150,6 @@ struct cfg80211_ops {
enum nl80211_channel_type channel_type,
const u8 *buf, size_t len, u64 *cookie);
- /* some temporary stuff to finish wext */
int (*set_power_mgmt)(struct wiphy *wiphy, struct net_device *dev,
bool enabled, int timeout);
};
@@ -1489,6 +1488,9 @@ struct wireless_dev {
struct cfg80211_internal_bss *auth_bsses[MAX_AUTH_BSSES];
struct cfg80211_internal_bss *current_bss; /* associated / joined */
+ bool ps;
+ int ps_timeout;
+
#ifdef CONFIG_CFG80211_WEXT
/* wext data */
struct {
@@ -1500,8 +1502,7 @@ struct wireless_dev {
u8 bssid[ETH_ALEN], prev_bssid[ETH_ALEN];
u8 ssid[IEEE80211_MAX_SSID_LEN];
s8 default_key, default_mgmt_key;
- bool ps, prev_bssid_valid;
- int ps_timeout;
+ bool prev_bssid_valid;
} wext;
#endif
};
diff --git a/net/wireless/core.c b/net/wireless/core.c
index 51908dc..7fdb940 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -698,19 +698,21 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb,
wdev->wext.default_key = -1;
wdev->wext.default_mgmt_key = -1;
wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
+#endif
+
if (wdev->wiphy->flags & WIPHY_FLAG_PS_ON_BY_DEFAULT)
- wdev->wext.ps = true;
+ wdev->ps = true;
else
- wdev->wext.ps = false;
- wdev->wext.ps_timeout = 100;
+ wdev->ps = false;
+ wdev->ps_timeout = 100;
if (rdev->ops->set_power_mgmt)
if (rdev->ops->set_power_mgmt(wdev->wiphy, dev,
- wdev->wext.ps,
- wdev->wext.ps_timeout)) {
+ wdev->ps,
+ wdev->ps_timeout)) {
/* assume this means it's off */
- wdev->wext.ps = false;
+ wdev->ps = false;
}
-#endif
+
if (!dev->ethtool_ops)
dev->ethtool_ops = &cfg80211_ethtool_ops;
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 3281120..b0495a1 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -148,6 +148,7 @@ static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = {
[NL80211_ATTR_FRAME] = { .type = NLA_BINARY,
.len = IEEE80211_MAX_DATA_LEN },
[NL80211_ATTR_FRAME_MATCH] = { .type = NLA_BINARY, },
+ [NL80211_ATTR_PS_STATE] = { .type = NLA_U32 },
};
/* policy for the attributes */
@@ -4663,6 +4664,124 @@ unlock_rtnl:
return err;
}
+static int nl80211_set_power_save(struct sk_buff *skb, struct genl_info *info)
+{
+ struct cfg80211_registered_device *rdev;
+ struct wireless_dev *wdev;
+ struct net_device *dev;
+ u8 ps_state;
+ bool state;
+ int err;
+
+ if (!info->attrs[NL80211_ATTR_PS_STATE]) {
+ err = -EINVAL;
+ goto out;
+ }
+
+ ps_state = nla_get_u32(info->attrs[NL80211_ATTR_PS_STATE]);
+
+ if (ps_state != NL80211_PS_DISABLED && ps_state != NL80211_PS_ENABLED) {
+ err = -EINVAL;
+ goto out;
+ }
+
+ rtnl_lock();
+
+ err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
+ if (err)
+ goto unlock_rdev;
+
+ wdev = dev->ieee80211_ptr;
+
+ if (!rdev->ops->set_power_mgmt) {
+ err = -EOPNOTSUPP;
+ goto unlock_rdev;
+ }
+
+ state = (ps_state == NL80211_PS_ENABLED) ? true : false;
+
+ if (state == wdev->ps)
+ goto unlock_rdev;
+
+ wdev->ps = state;
+
+ if (rdev->ops->set_power_mgmt(wdev->wiphy, dev, wdev->ps,
+ wdev->ps_timeout))
+ /* assume this means it's off */
+ wdev->ps = false;
+
+unlock_rdev:
+ cfg80211_unlock_rdev(rdev);
+ dev_put(dev);
+ rtnl_unlock();
+
+out:
+ return err;
+}
+
+static int nl80211_get_power_save(struct sk_buff *skb, struct genl_info *info)
+{
+ struct cfg80211_registered_device *rdev;
+ enum nl80211_ps_state ps_state;
+ struct wireless_dev *wdev;
+ struct net_device *dev;
+ struct sk_buff *msg;
+ void *hdr;
+ int err;
+
+ rtnl_lock();
+
+ err = get_rdev_dev_by_info_ifindex(info, &rdev, &dev);
+ if (err)
+ goto unlock_rtnl;
+
+ wdev = dev->ieee80211_ptr;
+
+ if (!rdev->ops->set_power_mgmt) {
+ err = -EOPNOTSUPP;
+ goto out;
+ }
+
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+ if (!msg) {
+ err = -ENOMEM;
+ goto out;
+ }
+
+ hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
+ NL80211_CMD_GET_POWER_SAVE);
+ if (!hdr) {
+ err = -ENOMEM;
+ goto free_msg;
+ }
+
+ if (wdev->ps)
+ ps_state = NL80211_PS_ENABLED;
+ else
+ ps_state = NL80211_PS_DISABLED;
+
+ NLA_PUT_U32(msg, NL80211_ATTR_PS_STATE, ps_state);
+
+ genlmsg_end(msg, hdr);
+ err = genlmsg_reply(msg, info);
+ goto out;
+
+nla_put_failure:
+ err = -ENOBUFS;
+
+free_msg:
+ nlmsg_free(msg);
+
+out:
+ cfg80211_unlock_rdev(rdev);
+ dev_put(dev);
+
+unlock_rtnl:
+ rtnl_unlock();
+
+ return err;
+}
+
static struct genl_ops nl80211_ops[] = {
{
.cmd = NL80211_CMD_GET_WIPHY,
@@ -4955,6 +5074,18 @@ static struct genl_ops nl80211_ops[] = {
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
},
+ {
+ .cmd = NL80211_CMD_SET_POWER_SAVE,
+ .doit = nl80211_set_power_save,
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ },
+ {
+ .cmd = NL80211_CMD_GET_POWER_SAVE,
+ .doit = nl80211_get_power_save,
+ .policy = nl80211_policy,
+ /* can be retrieved by unprivileged users */
+ },
};
static struct genl_multicast_group nl80211_mlme_mcgrp = {
diff --git a/net/wireless/wext-compat.c b/net/wireless/wext-compat.c
index b17eeae..9ab5183 100644
--- a/net/wireless/wext-compat.c
+++ b/net/wireless/wext-compat.c
@@ -1099,8 +1099,8 @@ int cfg80211_wext_siwpower(struct net_device *dev,
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
- bool ps = wdev->wext.ps;
- int timeout = wdev->wext.ps_timeout;
+ bool ps = wdev->ps;
+ int timeout = wdev->ps_timeout;
int err;
if (wdev->iftype != NL80211_IFTYPE_STATION)
@@ -1133,8 +1133,8 @@ int cfg80211_wext_siwpower(struct net_device *dev,
if (err)
return err;
- wdev->wext.ps = ps;
- wdev->wext.ps_timeout = timeout;
+ wdev->ps = ps;
+ wdev->ps_timeout = timeout;
return 0;
@@ -1147,7 +1147,7 @@ int cfg80211_wext_giwpower(struct net_device *dev,
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
- wrq->disabled = !wdev->wext.ps;
+ wrq->disabled = !wdev->ps;
return 0;
}
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