diff --git a/include/linux/nl80211.h b/include/linux/nl80211.h
index be8df57b789d84571d1f1aa60d0f39fa7d310cce..a75dea9c416e40a4919994698b2e5a5383645982 100644
--- a/include/linux/nl80211.h
+++ b/include/linux/nl80211.h
@@ -420,6 +420,14 @@
* new station with the AUTHENTICATED flag unset and maybe change it later
* depending on the authentication result.
*
+ * @NL80211_CMD_GET_WOWLAN: get Wake-on-Wireless-LAN (WoWLAN) settings.
+ * @NL80211_CMD_SET_WOWLAN: set Wake-on-Wireless-LAN (WoWLAN) settings.
+ * Since wireless is more complex than wired ethernet, it supports
+ * various triggers. These triggers can be configured through this
+ * command with the %NL80211_ATTR_WOWLAN_TRIGGERS attribute. For
+ * more background information, see
+ * http://wireless.kernel.org/en/users/Documentation/WoWLAN.
+ *
* @NL80211_CMD_MAX: highest used command number
* @__NL80211_CMD_AFTER_LAST: internal use
*/
@@ -534,6 +542,9 @@ enum nl80211_commands {
NL80211_CMD_NEW_PEER_CANDIDATE,
+ NL80211_CMD_GET_WOWLAN,
+ NL80211_CMD_SET_WOWLAN,
+
/* add new commands above here */
/* used to define NL80211_CMD_MAX below */
@@ -903,6 +914,13 @@ enum nl80211_commands {
* allows auth frames in a mesh to be passed to userspace for processing via
* the @NL80211_MESH_SETUP_USERSPACE_AUTH flag.
*
+ * @NL80211_ATTR_WOWLAN_SUPPORTED: indicates, as part of the wiphy capabilities,
+ * the supported WoWLAN triggers
+ * @NL80211_ATTR_WOWLAN_TRIGGERS: used by %NL80211_CMD_SET_WOWLAN to
+ * indicate which WoW triggers should be enabled. This is also
+ * used by %NL80211_CMD_GET_WOWLAN to get the currently enabled WoWLAN
+ * triggers.
+ *
* @NL80211_ATTR_MAX: highest attribute number currently defined
* @__NL80211_ATTR_AFTER_LAST: internal use
*/
@@ -1092,6 +1110,9 @@ enum nl80211_attrs {
NL80211_ATTR_SUPPORT_MESH_AUTH,
+ NL80211_ATTR_WOWLAN_TRIGGERS,
+ NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED,
+
/* add attributes here, update the policy in nl80211.c */
__NL80211_ATTR_AFTER_LAST,
@@ -2061,4 +2082,82 @@ enum nl80211_tx_power_setting {
NL80211_TX_POWER_FIXED,
};
+/**
+ * enum nl80211_wowlan_packet_pattern_attr - WoWLAN packet pattern attribute
+ * @__NL80211_WOWLAN_PKTPAT_INVALID: invalid number for nested attribute
+ * @NL80211_WOWLAN_PKTPAT_PATTERN: the pattern, values where the mask has
+ * a zero bit are ignored
+ * @NL80211_WOWLAN_PKTPAT_MASK: pattern mask, must be long enough to have
+ * a bit for each byte in the pattern. The lowest-order bit corresponds
+ * to the first byte of the pattern, but the bytes of the pattern are
+ * in a little-endian-like format, i.e. the 9th byte of the pattern
+ * corresponds to the lowest-order bit in the second byte of the mask.
+ * For example: The match 00:xx:00:00:xx:00:00:00:00:xx:xx:xx (where
+ * xx indicates "don't care") would be represented by a pattern of
+ * twelve zero bytes, and a mask of "0xed,0x07".
+ * Note that the pattern matching is done as though frames were not
+ * 802.11 frames but 802.3 frames, i.e. the frame is fully unpacked
+ * first (including SNAP header unpacking) and then matched.
+ * @NUM_NL80211_WOWLAN_PKTPAT: number of attributes
+ * @MAX_NL80211_WOWLAN_PKTPAT: max attribute number
+ */
+enum nl80211_wowlan_packet_pattern_attr {
+ __NL80211_WOWLAN_PKTPAT_INVALID,
+ NL80211_WOWLAN_PKTPAT_MASK,
+ NL80211_WOWLAN_PKTPAT_PATTERN,
+
+ NUM_NL80211_WOWLAN_PKTPAT,
+ MAX_NL80211_WOWLAN_PKTPAT = NUM_NL80211_WOWLAN_PKTPAT - 1,
+};
+
+/**
+ * struct nl80211_wowlan_pattern_support - pattern support information
+ * @max_patterns: maximum number of patterns supported
+ * @min_pattern_len: minimum length of each pattern
+ * @max_pattern_len: maximum length of each pattern
+ *
+ * This struct is carried in %NL80211_WOWLAN_TRIG_PKT_PATTERN when
+ * that is part of %NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED in the
+ * capability information given by the kernel to userspace.
+ */
+struct nl80211_wowlan_pattern_support {
+ __u32 max_patterns;
+ __u32 min_pattern_len;
+ __u32 max_pattern_len;
+} __attribute__((packed));
+
+/**
+ * enum nl80211_wowlan_triggers - WoWLAN trigger definitions
+ * @__NL80211_WOWLAN_TRIG_INVALID: invalid number for nested attributes
+ * @NL80211_WOWLAN_TRIG_ANY: wake up on any activity, do not really put
+ * the chip into a special state -- works best with chips that have
+ * support for low-power operation already (flag)
+ * @NL80211_WOWLAN_TRIG_DISCONNECT: wake up on disconnect, the way disconnect
+ * is detected is implementation-specific (flag)
+ * @NL80211_WOWLAN_TRIG_MAGIC_PKT: wake up on magic packet (6x 0xff, followed
+ * by 16 repetitions of MAC addr, anywhere in payload) (flag)
+ * @NL80211_WOWLAN_TRIG_PKT_PATTERN: wake up on the specified packet patterns
+ * which are passed in an array of nested attributes, each nested attribute
+ * defining a with attributes from &struct nl80211_wowlan_trig_pkt_pattern.
+ * Each pattern defines a wakeup packet. The matching is done on the MSDU,
+ * i.e. as though the packet was an 802.3 packet, so the pattern matching
+ * is done after the packet is converted to the MSDU.
+ *
+ * In %NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED, it is a binary attribute
+ * carrying a &struct nl80211_wowlan_pattern_support.
+ * @NUM_NL80211_WOWLAN_TRIG: number of wake on wireless triggers
+ * @MAX_NL80211_WOWLAN_TRIG: highest wowlan trigger attribute number
+ */
+enum nl80211_wowlan_triggers {
+ __NL80211_WOWLAN_TRIG_INVALID,
+ NL80211_WOWLAN_TRIG_ANY,
+ NL80211_WOWLAN_TRIG_DISCONNECT,
+ NL80211_WOWLAN_TRIG_MAGIC_PKT,
+ NL80211_WOWLAN_TRIG_PKT_PATTERN,
+
+ /* keep last */
+ NUM_NL80211_WOWLAN_TRIG,
+ MAX_NL80211_WOWLAN_TRIG = NUM_NL80211_WOWLAN_TRIG - 1
+};
+
#endif /* __LINUX_NL80211_H */
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 4932dfcb72b4ea8363d844a00032672e6d5288d9..0920daf3680723569951adc36c7d889538a5a0ce 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -1087,6 +1087,38 @@ struct cfg80211_pmksa {
u8 *pmkid;
};
+/**
+ * struct cfg80211_wowlan_trig_pkt_pattern - packet pattern
+ * @mask: bitmask where to match pattern and where to ignore bytes,
+ * one bit per byte, in same format as nl80211
+ * @pattern: bytes to match where bitmask is 1
+ * @pattern_len: length of pattern (in bytes)
+ *
+ * Internal note: @mask and @pattern are allocated in one chunk of
+ * memory, free @mask only!
+ */
+struct cfg80211_wowlan_trig_pkt_pattern {
+ u8 *mask, *pattern;
+ int pattern_len;
+};
+
+/**
+ * struct cfg80211_wowlan - Wake on Wireless-LAN support info
+ *
+ * This structure defines the enabled WoWLAN triggers for the device.
+ * @any: wake up on any activity -- special trigger if device continues
+ * operating as normal during suspend
+ * @disconnect: wake up if getting disconnected
+ * @magic_pkt: wake up on receiving magic packet
+ * @patterns: wake up on receiving packet matching a pattern
+ * @n_patterns: number of patterns
+ */
+struct cfg80211_wowlan {
+ bool any, disconnect, magic_pkt;
+ struct cfg80211_wowlan_trig_pkt_pattern *patterns;
+ int n_patterns;
+};
+
/**
* struct cfg80211_ops - backend description for wireless configuration
*
@@ -1100,7 +1132,9 @@ struct cfg80211_pmksa {
* wireless extensions but this is subject to reevaluation as soon as this
* code is used more widely and we have a first user without wext.
*
- * @suspend: wiphy device needs to be suspended
+ * @suspend: wiphy device needs to be suspended. The variable @wow will
+ * be %NULL or contain the enabled Wake-on-Wireless triggers that are
+ * configured for the device.
* @resume: wiphy device needs to be resumed
*
* @add_virtual_intf: create a new virtual interface with the given name,
@@ -1244,7 +1278,7 @@ struct cfg80211_pmksa {
* @get_ringparam: Get tx and rx ring current and maximum sizes.
*/
struct cfg80211_ops {
- int (*suspend)(struct wiphy *wiphy);
+ int (*suspend)(struct wiphy *wiphy, struct cfg80211_wowlan *wow);
int (*resume)(struct wiphy *wiphy);
struct net_device * (*add_virtual_intf)(struct wiphy *wiphy,
@@ -1479,6 +1513,38 @@ struct ieee80211_txrx_stypes {
u16 tx, rx;
};
+/**
+ * enum wiphy_wowlan_support_flags - WoWLAN support flags
+ * @WIPHY_WOWLAN_ANY: supports wakeup for the special "any"
+ * trigger that keeps the device operating as-is and
+ * wakes up the host on any activity, for example a
+ * received packet that passed filtering; note that the
+ * packet should be preserved in that case
+ * @WIPHY_WOWLAN_MAGIC_PKT: supports wakeup on magic packet
+ * (see nl80211.h)
+ * @WIPHY_WOWLAN_DISCONNECT: supports wakeup on disconnect
+ */
+enum wiphy_wowlan_support_flags {
+ WIPHY_WOWLAN_ANY = BIT(0),
+ WIPHY_WOWLAN_MAGIC_PKT = BIT(1),
+ WIPHY_WOWLAN_DISCONNECT = BIT(2),
+};
+
+/**
+ * struct wiphy_wowlan_support - WoWLAN support data
+ * @flags: see &enum wiphy_wowlan_support_flags
+ * @n_patterns: number of supported wakeup patterns
+ * (see nl80211.h for the pattern definition)
+ * @pattern_max_len: maximum length of each pattern
+ * @pattern_min_len: minimum length of each pattern
+ */
+struct wiphy_wowlan_support {
+ u32 flags;
+ int n_patterns;
+ int pattern_max_len;
+ int pattern_min_len;
+};
+
/**
* struct wiphy - wireless hardware description
* @reg_notifier: the driver's regulatory notification callback,
@@ -1546,6 +1612,8 @@ struct ieee80211_txrx_stypes {
*
* @max_remain_on_channel_duration: Maximum time a remain-on-channel operation
* may request, if implemented.
+ *
+ * @wowlan: WoWLAN support information
*/
struct wiphy {
/* assign these fields before you register the wiphy */
@@ -1583,6 +1651,8 @@ struct wiphy {
char fw_version[ETHTOOL_BUSINFO_LEN];
u32 hw_version;
+ struct wiphy_wowlan_support wowlan;
+
u16 max_remain_on_channel_duration;
u8 max_num_pmkids;
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 12d52cec9515183bf020ffb8a42c3ca4e2e59bbc..321d598eb8cb03802482dda0e84dc784865d1047 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -1297,7 +1297,8 @@ static int ieee80211_set_channel(struct wiphy *wiphy,
}
#ifdef CONFIG_PM
-static int ieee80211_suspend(struct wiphy *wiphy)
+static int ieee80211_suspend(struct wiphy *wiphy,
+ struct cfg80211_wowlan *wowlan)
{
return __ieee80211_suspend(wiphy_priv(wiphy));
}
diff --git a/net/wireless/core.c b/net/wireless/core.c
index bbf1fa11107a91dd5ce05afd4157b141204c3690..bea0d80710c8cd0fcd6a7948a3d46fca8f9b741c 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -493,6 +493,13 @@ int wiphy_register(struct wiphy *wiphy)
return -EINVAL;
}
+ if (rdev->wiphy.wowlan.n_patterns) {
+ if (WARN_ON(!rdev->wiphy.wowlan.pattern_min_len ||
+ rdev->wiphy.wowlan.pattern_min_len >
+ rdev->wiphy.wowlan.pattern_max_len))
+ return -EINVAL;
+ }
+
/* check and set up bitrates */
ieee80211_set_bitrate_flags(wiphy);
@@ -631,6 +638,7 @@ void cfg80211_dev_free(struct cfg80211_registered_device *rdev)
mutex_destroy(&rdev->devlist_mtx);
list_for_each_entry_safe(scan, tmp, &rdev->bss_list, list)
cfg80211_put_bss(&scan->pub);
+ cfg80211_rdev_free_wowlan(rdev);
kfree(rdev);
}
diff --git a/net/wireless/core.h b/net/wireless/core.h
index 26a0a084e16b886910ea637168982baf8318c812..7a18c10a7fb6963eb0b44ce4140b3f9e5c8352e1 100644
--- a/net/wireless/core.h
+++ b/net/wireless/core.h
@@ -70,6 +70,8 @@ struct cfg80211_registered_device {
struct work_struct conn_work;
struct work_struct event_work;
+ struct cfg80211_wowlan *wowlan;
+
/* must be last because of the way we do wiphy_priv(),
* and it should at least be aligned to NETDEV_ALIGN */
struct wiphy wiphy __attribute__((__aligned__(NETDEV_ALIGN)));
@@ -89,6 +91,18 @@ bool wiphy_idx_valid(int wiphy_idx)
return wiphy_idx >= 0;
}
+static inline void
+cfg80211_rdev_free_wowlan(struct cfg80211_registered_device *rdev)
+{
+ int i;
+
+ if (!rdev->wowlan)
+ return;
+ for (i = 0; i < rdev->wowlan->n_patterns; i++)
+ kfree(rdev->wowlan->patterns[i].mask);
+ kfree(rdev->wowlan->patterns);
+ kfree(rdev->wowlan);
+}
extern struct workqueue_struct *cfg80211_wq;
extern struct mutex cfg80211_mutex;
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index ab77f943dc046bd2a0fc4561e0e34ba40a5edb07..0a199a1ca9b694e539e747db7275009256886c3a 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -173,6 +173,7 @@ static const struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] = {
[NL80211_ATTR_MCAST_RATE] = { .type = NLA_U32 },
[NL80211_ATTR_OFFCHANNEL_TX_OK] = { .type = NLA_FLAG },
[NL80211_ATTR_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED },
+ [NL80211_ATTR_WOWLAN_TRIGGERS] = { .type = NLA_NESTED },
};
/* policy for the key attributes */
@@ -194,6 +195,15 @@ nl80211_key_default_policy[NUM_NL80211_KEY_DEFAULT_TYPES] = {
[NL80211_KEY_DEFAULT_TYPE_MULTICAST] = { .type = NLA_FLAG },
};
+/* policy for WoWLAN attributes */
+static const struct nla_policy
+nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
+ [NL80211_WOWLAN_TRIG_ANY] = { .type = NLA_FLAG },
+ [NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
+ [NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
+ [NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
+};
+
/* ifidx get helper */
static int nl80211_get_ifidx(struct netlink_callback *cb)
{
@@ -821,6 +831,35 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
nla_nest_end(msg, nl_ifs);
}
+ if (dev->wiphy.wowlan.flags || dev->wiphy.wowlan.n_patterns) {
+ struct nlattr *nl_wowlan;
+
+ nl_wowlan = nla_nest_start(msg,
+ NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED);
+ if (!nl_wowlan)
+ goto nla_put_failure;
+
+ if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_ANY)
+ NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
+ if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_DISCONNECT)
+ NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
+ if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_MAGIC_PKT)
+ NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
+ if (dev->wiphy.wowlan.n_patterns) {
+ struct nl80211_wowlan_pattern_support pat = {
+ .max_patterns = dev->wiphy.wowlan.n_patterns,
+ .min_pattern_len =
+ dev->wiphy.wowlan.pattern_min_len,
+ .max_pattern_len =
+ dev->wiphy.wowlan.pattern_max_len,
+ };
+ NLA_PUT(msg, NL80211_WOWLAN_TRIG_PKT_PATTERN,
+ sizeof(pat), &pat);
+ }
+
+ nla_nest_end(msg, nl_wowlan);
+ }
+
return genlmsg_end(msg, hdr);
nla_put_failure:
@@ -4808,6 +4847,194 @@ static int nl80211_leave_mesh(struct sk_buff *skb, struct genl_info *info)
return cfg80211_leave_mesh(rdev, dev);
}
+static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
+{
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
+ struct sk_buff *msg;
+ void *hdr;
+
+ if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
+ return -EOPNOTSUPP;
+
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+ if (!msg)
+ return -ENOMEM;
+
+ hdr = nl80211hdr_put(msg, info->snd_pid, info->snd_seq, 0,
+ NL80211_CMD_GET_WOWLAN);
+ if (!hdr)
+ goto nla_put_failure;
+
+ if (rdev->wowlan) {
+ struct nlattr *nl_wowlan;
+
+ nl_wowlan = nla_nest_start(msg, NL80211_ATTR_WOWLAN_TRIGGERS);
+ if (!nl_wowlan)
+ goto nla_put_failure;
+
+ if (rdev->wowlan->any)
+ NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_ANY);
+ if (rdev->wowlan->disconnect)
+ NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_DISCONNECT);
+ if (rdev->wowlan->magic_pkt)
+ NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_MAGIC_PKT);
+ if (rdev->wowlan->n_patterns) {
+ struct nlattr *nl_pats, *nl_pat;
+ int i, pat_len;
+
+ nl_pats = nla_nest_start(msg,
+ NL80211_WOWLAN_TRIG_PKT_PATTERN);
+ if (!nl_pats)
+ goto nla_put_failure;
+
+ for (i = 0; i < rdev->wowlan->n_patterns; i++) {
+ nl_pat = nla_nest_start(msg, i + 1);
+ if (!nl_pat)
+ goto nla_put_failure;
+ pat_len = rdev->wowlan->patterns[i].pattern_len;
+ NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_MASK,
+ DIV_ROUND_UP(pat_len, 8),
+ rdev->wowlan->patterns[i].mask);
+ NLA_PUT(msg, NL80211_WOWLAN_PKTPAT_PATTERN,
+ pat_len,
+ rdev->wowlan->patterns[i].pattern);
+ nla_nest_end(msg, nl_pat);
+ }
+ nla_nest_end(msg, nl_pats);
+ }
+
+ nla_nest_end(msg, nl_wowlan);
+ }
+
+ genlmsg_end(msg, hdr);
+ return genlmsg_reply(msg, info);
+
+nla_put_failure:
+ nlmsg_free(msg);
+ return -ENOBUFS;
+}
+
+static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
+{
+ struct cfg80211_registered_device *rdev = info->user_ptr[0];
+ struct nlattr *tb[NUM_NL80211_WOWLAN_TRIG];
+ struct cfg80211_wowlan no_triggers = {};
+ struct cfg80211_wowlan new_triggers = {};
+ struct wiphy_wowlan_support *wowlan = &rdev->wiphy.wowlan;
+ int err, i;
+
+ if (!rdev->wiphy.wowlan.flags && !rdev->wiphy.wowlan.n_patterns)
+ return -EOPNOTSUPP;
+
+ if (!info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS])
+ goto no_triggers;
+
+ err = nla_parse(tb, MAX_NL80211_WOWLAN_TRIG,
+ nla_data(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
+ nla_len(info->attrs[NL80211_ATTR_WOWLAN_TRIGGERS]),
+ nl80211_wowlan_policy);
+ if (err)
+ return err;
+
+ if (tb[NL80211_WOWLAN_TRIG_ANY]) {
+ if (!(wowlan->flags & WIPHY_WOWLAN_ANY))
+ return -EINVAL;
+ new_triggers.any = true;
+ }
+
+ if (tb[NL80211_WOWLAN_TRIG_DISCONNECT]) {
+ if (!(wowlan->flags & WIPHY_WOWLAN_DISCONNECT))
+ return -EINVAL;
+ new_triggers.disconnect = true;
+ }
+
+ if (tb[NL80211_WOWLAN_TRIG_MAGIC_PKT]) {
+ if (!(wowlan->flags & WIPHY_WOWLAN_MAGIC_PKT))
+ return -EINVAL;
+ new_triggers.magic_pkt = true;
+ }
+
+ if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
+ struct nlattr *pat;
+ int n_patterns = 0;
+ int rem, pat_len, mask_len;
+ struct nlattr *pat_tb[NUM_NL80211_WOWLAN_PKTPAT];
+
+ nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
+ rem)
+ n_patterns++;
+ if (n_patterns > wowlan->n_patterns)
+ return -EINVAL;
+
+ new_triggers.patterns = kcalloc(n_patterns,
+ sizeof(new_triggers.patterns[0]),
+ GFP_KERNEL);
+ if (!new_triggers.patterns)
+ return -ENOMEM;
+
+ new_triggers.n_patterns = n_patterns;
+ i = 0;
+
+ nla_for_each_nested(pat, tb[NL80211_WOWLAN_TRIG_PKT_PATTERN],
+ rem) {
+ nla_parse(pat_tb, MAX_NL80211_WOWLAN_PKTPAT,
+ nla_data(pat), nla_len(pat), NULL);
+ err = -EINVAL;
+ if (!pat_tb[NL80211_WOWLAN_PKTPAT_MASK] ||
+ !pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN])
+ goto error;
+ pat_len = nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]);
+ mask_len = DIV_ROUND_UP(pat_len, 8);
+ if (nla_len(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]) !=
+ mask_len)
+ goto error;
+ if (pat_len > wowlan->pattern_max_len ||
+ pat_len < wowlan->pattern_min_len)
+ goto error;
+
+ new_triggers.patterns[i].mask =
+ kmalloc(mask_len + pat_len, GFP_KERNEL);
+ if (!new_triggers.patterns[i].mask) {
+ err = -ENOMEM;
+ goto error;
+ }
+ new_triggers.patterns[i].pattern =
+ new_triggers.patterns[i].mask + mask_len;
+ memcpy(new_triggers.patterns[i].mask,
+ nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_MASK]),
+ mask_len);
+ new_triggers.patterns[i].pattern_len = pat_len;
+ memcpy(new_triggers.patterns[i].pattern,
+ nla_data(pat_tb[NL80211_WOWLAN_PKTPAT_PATTERN]),
+ pat_len);
+ i++;
+ }
+ }
+
+ if (memcmp(&new_triggers, &no_triggers, sizeof(new_triggers))) {
+ struct cfg80211_wowlan *ntrig;
+ ntrig = kmemdup(&new_triggers, sizeof(new_triggers),
+ GFP_KERNEL);
+ if (!ntrig) {
+ err = -ENOMEM;
+ goto error;
+ }
+ cfg80211_rdev_free_wowlan(rdev);
+ rdev->wowlan = ntrig;
+ } else {
+ no_triggers:
+ cfg80211_rdev_free_wowlan(rdev);
+ rdev->wowlan = NULL;
+ }
+
+ return 0;
+ error:
+ for (i = 0; i < new_triggers.n_patterns; i++)
+ kfree(new_triggers.patterns[i].mask);
+ kfree(new_triggers.patterns);
+ return err;
+}
+
#define NL80211_FLAG_NEED_WIPHY 0x01
#define NL80211_FLAG_NEED_NETDEV 0x02
#define NL80211_FLAG_NEED_RTNL 0x04
@@ -5306,6 +5533,22 @@ static struct genl_ops nl80211_ops[] = {
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
NL80211_FLAG_NEED_RTNL,
},
+ {
+ .cmd = NL80211_CMD_GET_WOWLAN,
+ .doit = nl80211_get_wowlan,
+ .policy = nl80211_policy,
+ /* can be retrieved by unprivileged users */
+ .internal_flags = NL80211_FLAG_NEED_WIPHY |
+ NL80211_FLAG_NEED_RTNL,
+ },
+ {
+ .cmd = NL80211_CMD_SET_WOWLAN,
+ .doit = nl80211_set_wowlan,
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = NL80211_FLAG_NEED_WIPHY |
+ NL80211_FLAG_NEED_RTNL,
+ },
};
static struct genl_multicast_group nl80211_mlme_mcgrp = {
diff --git a/net/wireless/sysfs.c b/net/wireless/sysfs.c
index 4294fa22bb2dfc15cbd6d0d2e7c0303a42f7d278..c6e4ca6a7d2e0b1fcc6e450b1255a0140ae64cff 100644
--- a/net/wireless/sysfs.c
+++ b/net/wireless/sysfs.c
@@ -93,7 +93,7 @@ static int wiphy_suspend(struct device *dev, pm_message_t state)
if (rdev->ops->suspend) {
rtnl_lock();
- ret = rdev->ops->suspend(&rdev->wiphy);
+ ret = rdev->ops->suspend(&rdev->wiphy, rdev->wowlan);
rtnl_unlock();
}