korg/linux
0
0
Fork 0
mirror of https://mirrors.bfsu.edu.cn/git/linux.git synced 2024-11-14 15:54:15 +08:00
Code Issues Packages Projects Releases Wiki Activity

nl80211: advertise GTK rekey support, new triggers

Browse Source 
Since we now have the necessary API in place to support
GTK rekeying, applications will need to know whether it
is supported by a device. Add a pseudo-trigger that is
used only to advertise that capability. Also, add some
new triggers that match what iwlagn devices can do.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Johannes Berg 2011-07-13 10:48:55 +02:00 committed by John W. Linville
parent 95acac61ba
commit 77dbbb1389
4 changed files with 90 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

19
include/linux/nl80211.h
View File

@ -989,8 +989,8 @@ enum nl80211_commands {
* driving the peer link management state machine.
* @NL80211_MESH_SETUP_USERSPACE_AMPE must be enabled.
*
* @NL80211_ATTR_WOWLAN_SUPPORTED: indicates, as part of the wiphy capabilities,
* the supported WoWLAN triggers
* @NL80211_ATTR_WOWLAN_TRIGGERS_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
@ -2255,6 +2255,16 @@ struct nl80211_wowlan_pattern_support {
*
* In %NL80211_ATTR_WOWLAN_TRIGGERS_SUPPORTED, it is a binary attribute
* carrying a &struct nl80211_wowlan_pattern_support.
* @NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED: Not a real trigger, and cannot be
* used when setting, used only to indicate that GTK rekeying is supported
* by the device (flag)
* @NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE: wake up on GTK rekey failure (if
* done by the device) (flag)
* @NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST: wake up on EAP Identity Request
* packet (flag)
* @NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE: wake up on 4-way handshake (flag)
* @NL80211_WOWLAN_TRIG_RFKILL_RELEASE: wake up when rfkill is released
* (on devices that have rfkill in the device) (flag)
* @NUM_NL80211_WOWLAN_TRIG: number of wake on wireless triggers
* @MAX_NL80211_WOWLAN_TRIG: highest wowlan trigger attribute number
*/
@ -2264,6 +2274,11 @@ enum nl80211_wowlan_triggers {
NL80211_WOWLAN_TRIG_DISCONNECT,
NL80211_WOWLAN_TRIG_MAGIC_PKT,
NL80211_WOWLAN_TRIG_PKT_PATTERN,
NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED,
NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE,
NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST,
NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE,
NL80211_WOWLAN_TRIG_RFKILL_RELEASE,
/* keep last */
NUM_NL80211_WOWLAN_TRIG,

24
include/net/cfg80211.h
View File

@ -1146,9 +1146,15 @@ struct cfg80211_wowlan_trig_pkt_pattern {
* @magic_pkt: wake up on receiving magic packet
* @patterns: wake up on receiving packet matching a pattern
* @n_patterns: number of patterns
* @gtk_rekey_failure: wake up on GTK rekey failure
* @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
*/
struct cfg80211_wowlan {
bool any, disconnect, magic_pkt;
bool any, disconnect, magic_pkt, gtk_rekey_failure,
eap_identity_req, four_way_handshake,
rfkill_release;
struct cfg80211_wowlan_trig_pkt_pattern *patterns;
int n_patterns;
};
@ -1673,11 +1679,21 @@ struct ieee80211_txrx_stypes {
* @WIPHY_WOWLAN_MAGIC_PKT: supports wakeup on magic packet
* (see nl80211.h)
* @WIPHY_WOWLAN_DISCONNECT: supports wakeup on disconnect
* @WIPHY_WOWLAN_SUPPORTS_GTK_REKEY: supports GTK rekeying while asleep
* @WIPHY_WOWLAN_GTK_REKEY_FAILURE: supports wakeup on GTK rekey failure
* @WIPHY_WOWLAN_EAP_IDENTITY_REQ: supports wakeup on EAP identity request
* @WIPHY_WOWLAN_4WAY_HANDSHAKE: supports wakeup on 4-way handshake failure
* @WIPHY_WOWLAN_RFKILL_RELEASE: supports wakeup on RF-kill release
*/
enum wiphy_wowlan_support_flags {
WIPHY_WOWLAN_ANY = BIT(0),
WIPHY_WOWLAN_MAGIC_PKT = BIT(1),
WIPHY_WOWLAN_DISCONNECT = BIT(2),
WIPHY_WOWLAN_ANY = BIT(0),
WIPHY_WOWLAN_MAGIC_PKT = BIT(1),
WIPHY_WOWLAN_DISCONNECT = BIT(2),
WIPHY_WOWLAN_SUPPORTS_GTK_REKEY = BIT(3),
WIPHY_WOWLAN_GTK_REKEY_FAILURE = BIT(4),
WIPHY_WOWLAN_EAP_IDENTITY_REQ = BIT(5),
WIPHY_WOWLAN_4WAY_HANDSHAKE = BIT(6),
WIPHY_WOWLAN_RFKILL_RELEASE = BIT(7),
};
/**

4
net/wireless/core.c
View File

@ -488,6 +488,10 @@ int wiphy_register(struct wiphy *wiphy)
int i;
u16 ifmodes = wiphy->interface_modes;
if (WARN_ON((wiphy->wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE) &&
!(wiphy->wowlan.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY)))
return -EINVAL;
if (WARN_ON(wiphy->addresses && !wiphy->n_addresses))
return -EINVAL;

49
net/wireless/nl80211.c
View File

@ -205,6 +205,10 @@ nl80211_wowlan_policy[NUM_NL80211_WOWLAN_TRIG] = {
[NL80211_WOWLAN_TRIG_DISCONNECT] = { .type = NLA_FLAG },
[NL80211_WOWLAN_TRIG_MAGIC_PKT] = { .type = NLA_FLAG },
[NL80211_WOWLAN_TRIG_PKT_PATTERN] = { .type = NLA_NESTED },
[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE] = { .type = NLA_FLAG },
[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST] = { .type = NLA_FLAG },
[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE] = { .type = NLA_FLAG },
[NL80211_WOWLAN_TRIG_RFKILL_RELEASE] = { .type = NLA_FLAG },
};
/* policy for GTK rekey offload attributes */
@ -929,6 +933,16 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
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.flags & WIPHY_WOWLAN_SUPPORTS_GTK_REKEY)
NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED);
if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE)
NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE);
if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ)
NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST);
if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_4WAY_HANDSHAKE)
NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE);
if (dev->wiphy.wowlan.flags & WIPHY_WOWLAN_RFKILL_RELEASE)
NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE);
if (dev->wiphy.wowlan.n_patterns) {
struct nl80211_wowlan_pattern_support pat = {
.max_patterns = dev->wiphy.wowlan.n_patterns,
@ -5272,6 +5286,14 @@ static int nl80211_get_wowlan(struct sk_buff *skb, struct genl_info *info)
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->gtk_rekey_failure)
NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE);
if (rdev->wowlan->eap_identity_req)
NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST);
if (rdev->wowlan->four_way_handshake)
NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE);
if (rdev->wowlan->rfkill_release)
NLA_PUT_FLAG(msg, NL80211_WOWLAN_TRIG_RFKILL_RELEASE);
if (rdev->wowlan->n_patterns) {
struct nlattr *nl_pats, *nl_pat;
int i, pat_len;
@ -5348,6 +5370,33 @@ static int nl80211_set_wowlan(struct sk_buff *skb, struct genl_info *info)
new_triggers.magic_pkt = true;
}
if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_SUPPORTED])
return -EINVAL;
if (tb[NL80211_WOWLAN_TRIG_GTK_REKEY_FAILURE]) {
if (!(wowlan->flags & WIPHY_WOWLAN_GTK_REKEY_FAILURE))
return -EINVAL;
new_triggers.gtk_rekey_failure = true;
}
if (tb[NL80211_WOWLAN_TRIG_EAP_IDENT_REQUEST]) {
if (!(wowlan->flags & WIPHY_WOWLAN_EAP_IDENTITY_REQ))
return -EINVAL;
new_triggers.eap_identity_req = true;
}
if (tb[NL80211_WOWLAN_TRIG_4WAY_HANDSHAKE]) {
if (!(wowlan->flags & WIPHY_WOWLAN_4WAY_HANDSHAKE))
return -EINVAL;
new_triggers.four_way_handshake = true;
}
if (tb[NL80211_WOWLAN_TRIG_RFKILL_RELEASE]) {
if (!(wowlan->flags & WIPHY_WOWLAN_RFKILL_RELEASE))
return -EINVAL;
new_triggers.rfkill_release = true;
}
if (tb[NL80211_WOWLAN_TRIG_PKT_PATTERN]) {
struct nlattr *pat;
int n_patterns = 0;