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cfg80211: configuration for WoWLAN over TCP

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Intel Wireless devices are able to make a TCP connection
after suspending, sending some data and waking up when
the connection receives wakeup data (or breaks). Add the
WoWLAN configuration and feature advertising API for it.

Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg
2013-01-23 22:57:40 +01:00
parent a0497f9f57
commit 2a0e047ed6
4 changed files with 474 additions and 4 deletions
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55
include/net/cfg80211.h
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@@ -19,6 +19,7 @@
#include <linux/nl80211.h>
#include <linux/if_ether.h>
#include <linux/ieee80211.h>
#include <linux/net.h>
#include <net/regulatory.h>
/**
@@ -1587,6 +1588,41 @@ struct cfg80211_wowlan_trig_pkt_pattern {
int pkt_offset;
};
/**
* struct cfg80211_wowlan_tcp - TCP connection parameters
*
* @sock: (internal) socket for source port allocation
* @src: source IP address
* @dst: destination IP address
* @dst_mac: destination MAC address
* @src_port: source port
* @dst_port: destination port
* @payload_len: data payload length
* @payload: data payload buffer
* @payload_seq: payload sequence stamping configuration
* @data_interval: interval at which to send data packets
* @wake_len: wakeup payload match length
* @wake_data: wakeup payload match data
* @wake_mask: wakeup payload match mask
* @tokens_size: length of the tokens buffer
* @payload_tok: payload token usage configuration
*/
struct cfg80211_wowlan_tcp {
struct socket *sock;
__be32 src, dst;
u16 src_port, dst_port;
u8 dst_mac[ETH_ALEN];
int payload_len;
const u8 *payload;
struct nl80211_wowlan_tcp_data_seq payload_seq;
u32 data_interval;
u32 wake_len;
const u8 *wake_data, *wake_mask;
u32 tokens_size;
/* must be last, variable member */
struct nl80211_wowlan_tcp_data_token payload_tok;
};
/**
* struct cfg80211_wowlan - Wake on Wireless-LAN support info
*
@@ -1601,12 +1637,15 @@ struct cfg80211_wowlan_trig_pkt_pattern {
* @eap_identity_req: wake up on EAP identity request packet
* @four_way_handshake: wake up on 4-way handshake
* @rfkill_release: wake up when rfkill is released
* @tcp: TCP connection establishment/wakeup parameters, see nl80211.h.
* NULL if not configured.
*/
struct cfg80211_wowlan {
bool any, disconnect, magic_pkt, gtk_rekey_failure,
eap_identity_req, four_way_handshake,
rfkill_release;
struct cfg80211_wowlan_trig_pkt_pattern *patterns;
struct cfg80211_wowlan_tcp *tcp;
int n_patterns;
};
@@ -1626,11 +1665,15 @@ struct cfg80211_wowlan {
* frame triggers an 802.3 frame should be reported, for
* disconnect due to deauth 802.11 frame. This indicates which
* it is.
* @tcp_match: TCP wakeup packet received
* @tcp_connlost: TCP connection lost or failed to establish
* @tcp_nomoretokens: TCP data ran out of tokens
*/
struct cfg80211_wowlan_wakeup {
bool disconnect, magic_pkt, gtk_rekey_failure,
eap_identity_req, four_way_handshake,
rfkill_release, packet_80211;
rfkill_release, packet_80211,
tcp_match, tcp_connlost, tcp_nomoretokens;
s32 pattern_idx;
u32 packet_present_len, packet_len;
const void *packet;
@@ -2285,6 +2328,14 @@ enum wiphy_wowlan_support_flags {
WIPHY_WOWLAN_RFKILL_RELEASE = BIT(7),
};
struct wiphy_wowlan_tcp_support {
const struct nl80211_wowlan_tcp_data_token_feature *tok;
u32 data_payload_max;
u32 data_interval_max;
u32 wake_payload_max;
bool seq;
};
/**
* struct wiphy_wowlan_support - WoWLAN support data
* @flags: see &enum wiphy_wowlan_support_flags
@@ -2293,6 +2344,7 @@ enum wiphy_wowlan_support_flags {
* @pattern_max_len: maximum length of each pattern
* @pattern_min_len: minimum length of each pattern
* @max_pkt_offset: maximum Rx packet offset
* @tcp: TCP wakeup support information
*/
struct wiphy_wowlan_support {
u32 flags;
@@ -2300,6 +2352,7 @@ struct wiphy_wowlan_support {
int pattern_max_len;
int pattern_min_len;
int max_pkt_offset;
const struct wiphy_wowlan_tcp_support *tcp;
};
/**