Commit 6abb9cb9 authored by Johannes Berg's avatar Johannes Berg

cfg80211: make WoWLAN configuration available to drivers

Make the current WoWLAN configuration available to drivers
at runtime. This isn't really useful for the normal WoWLAN
behaviour and accessing it can also be racy, but drivers
may use it for testing the WoWLAN device behaviour while
the host stays up & running to observe the device.
Signed-off-by: default avatarJohannes Berg <johannes.berg@intel.com>
parent 83739b03
...@@ -2583,6 +2583,9 @@ struct wiphy_wowlan_support { ...@@ -2583,6 +2583,9 @@ struct wiphy_wowlan_support {
* may request, if implemented. * may request, if implemented.
* *
* @wowlan: WoWLAN support information * @wowlan: WoWLAN support information
* @wowlan_config: current WoWLAN configuration; this should usually not be
* used since access to it is necessarily racy, use the parameter passed
* to the suspend() operation instead.
* *
* @ap_sme_capa: AP SME capabilities, flags from &enum nl80211_ap_sme_features. * @ap_sme_capa: AP SME capabilities, flags from &enum nl80211_ap_sme_features.
* @ht_capa_mod_mask: Specify what ht_cap values can be over-ridden. * @ht_capa_mod_mask: Specify what ht_cap values can be over-ridden.
...@@ -2650,6 +2653,7 @@ struct wiphy { ...@@ -2650,6 +2653,7 @@ struct wiphy {
#ifdef CONFIG_PM #ifdef CONFIG_PM
struct wiphy_wowlan_support wowlan; struct wiphy_wowlan_support wowlan;
struct cfg80211_wowlan *wowlan_config;
#endif #endif
u16 max_remain_on_channel_duration; u16 max_remain_on_channel_duration;
......
...@@ -663,8 +663,10 @@ void wiphy_unregister(struct wiphy *wiphy) ...@@ -663,8 +663,10 @@ void wiphy_unregister(struct wiphy *wiphy)
flush_work(&rdev->event_work); flush_work(&rdev->event_work);
cancel_delayed_work_sync(&rdev->dfs_update_channels_wk); cancel_delayed_work_sync(&rdev->dfs_update_channels_wk);
if (rdev->wowlan && rdev->ops->set_wakeup) #ifdef CONFIG_PM
if (rdev->wiphy.wowlan_config && rdev->ops->set_wakeup)
rdev_set_wakeup(rdev, false); rdev_set_wakeup(rdev, false);
#endif
cfg80211_rdev_free_wowlan(rdev); cfg80211_rdev_free_wowlan(rdev);
} }
EXPORT_SYMBOL(wiphy_unregister); EXPORT_SYMBOL(wiphy_unregister);
......
...@@ -74,8 +74,6 @@ struct cfg80211_registered_device { ...@@ -74,8 +74,6 @@ struct cfg80211_registered_device {
struct work_struct conn_work; struct work_struct conn_work;
struct work_struct event_work; struct work_struct event_work;
struct cfg80211_wowlan *wowlan;
struct delayed_work dfs_update_channels_wk; struct delayed_work dfs_update_channels_wk;
/* netlink port which started critical protocol (0 means not started) */ /* netlink port which started critical protocol (0 means not started) */
...@@ -96,17 +94,20 @@ struct cfg80211_registered_device *wiphy_to_dev(struct wiphy *wiphy) ...@@ -96,17 +94,20 @@ struct cfg80211_registered_device *wiphy_to_dev(struct wiphy *wiphy)
static inline void static inline void
cfg80211_rdev_free_wowlan(struct cfg80211_registered_device *rdev) cfg80211_rdev_free_wowlan(struct cfg80211_registered_device *rdev)
{ {
#ifdef CONFIG_PM
int i; int i;
if (!rdev->wowlan) if (!rdev->wiphy.wowlan_config)
return; return;
for (i = 0; i < rdev->wowlan->n_patterns; i++) for (i = 0; i < rdev->wiphy.wowlan_config->n_patterns; i++)
kfree(rdev->wowlan->patterns[i].mask); kfree(rdev->wiphy.wowlan_config->patterns[i].mask);
kfree(rdev->wowlan->patterns); kfree(rdev->wiphy.wowlan_config->patterns);
if (rdev->wowlan->tcp && rdev->wowlan->tcp->sock) if (rdev->wiphy.wowlan_config->tcp &&
sock_release(rdev->wowlan->tcp->sock); rdev->wiphy.wowlan_config->tcp->sock)
kfree(rdev->wowlan->tcp); sock_release(rdev->wiphy.wowlan_config->tcp->sock);
kfree(rdev->wowlan); kfree(rdev->wiphy.wowlan_config->tcp);
kfree(rdev->wiphy.wowlan_config);
#endif
} }
extern struct workqueue_struct *cfg80211_wq; extern struct workqueue_struct *cfg80211_wq;
......
...@@ -7489,28 +7489,29 @@ static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info) ...@@ -7489,28 +7489,29 @@ static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
static int nl80211_send_wowlan_patterns(struct sk_buff *msg, static int nl80211_send_wowlan_patterns(struct sk_buff *msg,
struct cfg80211_registered_device *rdev) struct cfg80211_registered_device *rdev)
{ {
struct cfg80211_wowlan *wowlan = rdev->wiphy.wowlan_config;
struct nlattr *nl_pats, *nl_pat; struct nlattr *nl_pats, *nl_pat;
int i, pat_len; int i, pat_len;
if (!rdev->wowlan->n_patterns) if (!wowlan->n_patterns)
return 0; return 0;
nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN); nl_pats = nla_nest_start(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN);
if (!nl_pats) if (!nl_pats)
return -ENOBUFS; return -ENOBUFS;
for (i = 0; i < rdev->wowlan->n_patterns; i++) { for (i = 0; i < wowlan->n_patterns; i++) {
nl_pat = nla_nest_start(msg, i + 1); nl_pat = nla_nest_start(msg, i + 1);
if (!nl_pat) if (!nl_pat)
return -ENOBUFS; return -ENOBUFS;
pat_len = rdev->wowlan->patterns[i].pattern_len; pat_len = wowlan->patterns[i].pattern_len;
if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK, if (nla_put(msg, NL80211_WOWLAN_PKTPAT_MASK,
DIV_ROUND_UP(pat_len, 8), DIV_ROUND_UP(pat_len, 8),
rdev->wowlan->patterns[i].mask) || wowlan->patterns[i].mask) ||
nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN, nla_put(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
pat_len, rdev->wowlan->patterns[i].pattern) || pat_len, wowlan->patterns[i].pattern) ||
nla_put_u32(msg, NL80211_WOWLAN_PKTPAT_OFFSET, nla_put_u32(msg, NL80211_WOWLAN_PKTPAT_OFFSET,
rdev->wowlan->patterns[i].pkt_offset)) wowlan->patterns[i].pkt_offset))
return -ENOBUFS; return -ENOBUFS;
nla_nest_end(msg, nl_pat); nla_nest_end(msg, nl_pat);
} }
...@@ -7573,12 +7574,12 @@ static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info) ...@@ -7573,12 +7574,12 @@ static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
!rdev->wiphy.wowlan.tcp) !rdev->wiphy.wowlan.tcp)
return -EOPNOTSUPP; return -EOPNOTSUPP;
if (rdev->wowlan && rdev->wowlan->tcp) { if (rdev->wiphy.wowlan_config && rdev->wiphy.wowlan_config->tcp) {
/* adjust size to have room for all the data */ /* adjust size to have room for all the data */
size += rdev->wowlan->tcp->tokens_size + size += rdev->wiphy.wowlan_config->tcp->tokens_size +
rdev->wowlan->tcp->payload_len + rdev->wiphy.wowlan_config->tcp->payload_len +
rdev->wowlan->tcp->wake_len + rdev->wiphy.wowlan_config->tcp->wake_len +
rdev->wowlan->tcp->wake_len / 8; rdev->wiphy.wowlan_config->tcp->wake_len / 8;
} }
msg = nlmsg_new(size, GFP_KERNEL); msg = nlmsg_new(size, GFP_KERNEL);
...@@ -7590,33 +7591,34 @@ static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info) ...@@ -7590,33 +7591,34 @@ static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
if (!hdr) if (!hdr)
goto nla_put_failure; goto nla_put_failure;
if (rdev->wowlan) { if (rdev->wiphy.wowlan_config) {
struct nlattr *nl_wowlan; struct nlattr *nl_wowlan;
nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS); nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
if (!nl_wowlan) if (!nl_wowlan)
goto nla_put_failure; goto nla_put_failure;
if ((rdev->wowlan->any && if ((rdev->wiphy.wowlan_config->any &&
nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) || nla_put_flag(msg, NL80211_WOWLAN_TRIG_ANY)) ||
(rdev->wowlan->disconnect && (rdev->wiphy.wowlan_config->disconnect &&
nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) || nla_put_flag(msg, NL80211_WOWLAN_TRIG_DISCONNECT)) ||
(rdev->wowlan->magic_pkt && (rdev->wiphy.wowlan_config->magic_pkt &&
nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) || nla_put_flag(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT)) ||
(rdev->wowlan->gtk_rekey_failure && (rdev->wiphy.wowlan_config->gtk_rekey_failure &&
nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) || nla_put_flag(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE)) ||
(rdev->wowlan->eap_identity_req && (rdev->wiphy.wowlan_config->eap_identity_req &&
nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) || nla_put_flag(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST)) ||
(rdev->wowlan->four_way_handshake && (rdev->wiphy.wowlan_config->four_way_handshake &&
nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) || nla_put_flag(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE)) ||
(rdev->wowlan->rfkill_release && (rdev->wiphy.wowlan_config->rfkill_release &&
nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE))) nla_put_flag(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE)))
goto nla_put_failure; goto nla_put_failure;
if (nl80211_send_wowlan_patterns(msg, rdev)) if (nl80211_send_wowlan_patterns(msg, rdev))
goto nla_put_failure; goto nla_put_failure;
if (nl80211_send_wowlan_tcp(msg, rdev->wowlan->tcp)) if (nl80211_send_wowlan_tcp(msg,
rdev->wiphy.wowlan_config->tcp))
goto nla_put_failure; goto nla_put_failure;
nla_nest_end(msg, nl_wowlan); nla_nest_end(msg, nl_wowlan);
...@@ -7783,7 +7785,7 @@ static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info) ...@@ -7783,7 +7785,7 @@ static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
struct cfg80211_wowlan *ntrig; struct cfg80211_wowlan *ntrig;
struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan; struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
int err, i; int err, i;
bool prev_enabled = rdev->wowlan; bool prev_enabled = rdev->wiphy.wowlan_config;
if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns && if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns &&
!rdev->wiphy.wowlan.tcp) !rdev->wiphy.wowlan.tcp)
...@@ -7791,7 +7793,7 @@ static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info) ...@@ -7791,7 +7793,7 @@ static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) { if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]) {
cfg80211_rdev_free_wowlan(rdev); cfg80211_rdev_free_wowlan(rdev);
rdev->wowlan = NULL; rdev->wiphy.wowlan_config = NULL;
goto set_wakeup; goto set_wakeup;
} }
...@@ -7927,11 +7929,12 @@ static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info) ...@@ -7927,11 +7929,12 @@ static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
goto error; goto error;
} }
cfg80211_rdev_free_wowlan(rdev); cfg80211_rdev_free_wowlan(rdev);
rdev->wowlan = ntrig; rdev->wiphy.wowlan_config = ntrig;
set_wakeup: set_wakeup:
if (rdev->ops->set_wakeup && prev_enabled != !!rdev->wowlan) if (rdev->ops->set_wakeup &&
rdev_set_wakeup(rdev, rdev->wowlan); prev_enabled != !!rdev->wiphy.wowlan_config)
rdev_set_wakeup(rdev, rdev->wiphy.wowlan_config);
return 0; return 0;
error: error:
......
...@@ -91,6 +91,7 @@ static void cfg80211_leave_all(struct cfg80211_registered_device *rdev) ...@@ -91,6 +91,7 @@ static void cfg80211_leave_all(struct cfg80211_registered_device *rdev)
cfg80211_leave(rdev, wdev); cfg80211_leave(rdev, wdev);
} }
#ifdef CONFIG_PM
static int wiphy_suspend(struct device *dev, pm_message_t state) static int wiphy_suspend(struct device *dev, pm_message_t state)
{ {
struct cfg80211_registered_device *rdev = dev_to_rdev(dev); struct cfg80211_registered_device *rdev = dev_to_rdev(dev);
...@@ -100,10 +101,10 @@ static int wiphy_suspend(struct device *dev, pm_message_t state) ...@@ -100,10 +101,10 @@ static int wiphy_suspend(struct device *dev, pm_message_t state)
rtnl_lock(); rtnl_lock();
if (rdev->wiphy.registered) { if (rdev->wiphy.registered) {
if (!rdev->wowlan) if (!rdev->wiphy.wowlan_config)
cfg80211_leave_all(rdev); cfg80211_leave_all(rdev);
if (rdev->ops->suspend) if (rdev->ops->suspend)
ret = rdev_suspend(rdev, rdev->wowlan); ret = rdev_suspend(rdev, rdev->wiphy.wowlan_config);
if (ret == 1) { if (ret == 1) {
/* Driver refuse to configure wowlan */ /* Driver refuse to configure wowlan */
cfg80211_leave_all(rdev); cfg80211_leave_all(rdev);
...@@ -132,6 +133,7 @@ static int wiphy_resume(struct device *dev) ...@@ -132,6 +133,7 @@ static int wiphy_resume(struct device *dev)
return ret; return ret;
} }
#endif
static const void *wiphy_namespace(struct device *d) static const void *wiphy_namespace(struct device *d)
{ {
...@@ -146,8 +148,10 @@ struct class ieee80211_class = { ...@@ -146,8 +148,10 @@ struct class ieee80211_class = {
.dev_release = wiphy_dev_release, .dev_release = wiphy_dev_release,
.dev_attrs = ieee80211_dev_attrs, .dev_attrs = ieee80211_dev_attrs,
.dev_uevent = wiphy_uevent, .dev_uevent = wiphy_uevent,
#ifdef CONFIG_PM
.suspend = wiphy_suspend, .suspend = wiphy_suspend,
.resume = wiphy_resume, .resume = wiphy_resume,
#endif
.ns_type = &net_ns_type_operations, .ns_type = &net_ns_type_operations,
.namespace = wiphy_namespace, .namespace = wiphy_namespace,
}; };
......
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