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Minor updates: 

* BSS coloring support
  * MEI commands for Intel platforms
  * various fixes/cleanups
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Merge tag 'mac80211-next-for-net-next-2021-08-20' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

Johannes Berg says:

====================
Minor updates:
 * BSS coloring support
 * MEI commands for Intel platforms
 * various fixes/cleanups

* tag 'mac80211-next-for-net-next-2021-08-20' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next:
  cfg80211: fix BSS color notify trace enum confusion
  mac80211: Fix insufficient headroom issue for AMSDU
  mac80211: add support for BSS color change
  nl80211: add support for BSS coloring
  mac80211: Use flex-array for radiotap header bitmap
  mac80211: radiotap: Use BIT() instead of shifts
  mac80211: Remove unnecessary variable and label
  mac80211: include <linux/rbtree.h>
  mac80211: Fix monitor MTU limit so that A-MSDUs get through
  mac80211: remove unnecessary NULL check in ieee80211_register_hw()
  mac80211: Reject zero MAC address in sta_info_insert_check()
  nl80211: vendor-cmd: add Intel vendor commands for iwlmei usage
====================

Link: https://lore.kernel.org/r/20210820105329.48674-1-johannes@sipsolutions.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jakub Kicinski 2021-08-20 10:09:22 -07:00
Родитель 0ba218e253 c448f0fd2c
Коммит 4af14dbaea
18 изменённых файлов: 764 добавлений и 63 удалений
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92
include/net/cfg80211.h
Просмотреть файл

@ -1252,6 +1252,27 @@ struct cfg80211_csa_settings {
u8 count;
};
/**
* struct cfg80211_color_change_settings - color change settings
*
* Used for bss color change
*
* @beacon_color_change: beacon data while performing the color countdown
* @counter_offsets_beacon: offsets of the counters within the beacon (tail)
* @counter_offsets_presp: offsets of the counters within the probe response
* @beacon_next: beacon data to be used after the color change
* @count: number of beacons until the color change
* @color: the color used after the change
*/
struct cfg80211_color_change_settings {
struct cfg80211_beacon_data beacon_color_change;
u16 counter_offset_beacon;
u16 counter_offset_presp;
struct cfg80211_beacon_data beacon_next;
u8 count;
u8 color;
};
/**
* struct iface_combination_params - input parameters for interface combinations
*
@ -3995,6 +4016,8 @@ struct mgmt_frame_regs {
* given TIDs. This callback may sleep.
*
* @set_sar_specs: Update the SAR (TX power) settings.
*
* @color_change: Initiate a color change.
*/
struct cfg80211_ops {
int (*suspend)(struct wiphy *wiphy, struct cfg80211_wowlan *wow);
@ -4322,6 +4345,9 @@ struct cfg80211_ops {
const u8 *peer, u8 tids);
int (*set_sar_specs)(struct wiphy *wiphy,
struct cfg80211_sar_specs *sar);
int (*color_change)(struct wiphy *wiphy,
struct net_device *dev,
struct cfg80211_color_change_settings *params);
};
/*
@ -8218,4 +8244,70 @@ void cfg80211_update_owe_info_event(struct net_device *netdev,
*/
void cfg80211_bss_flush(struct wiphy *wiphy);
/**
* cfg80211_bss_color_notify - notify about bss color event
* @dev: network device
* @gfp: allocation flags
* @cmd: the actual event we want to notify
* @count: the number of TBTTs until the color change happens
* @color_bitmap: representations of the colors that the local BSS is aware of
*/
int cfg80211_bss_color_notify(struct net_device *dev, gfp_t gfp,
enum nl80211_commands cmd, u8 count,
u64 color_bitmap);
/**
* cfg80211_obss_color_collision_notify - notify about bss color collision
* @dev: network device
* @color_bitmap: representations of the colors that the local BSS is aware of
*/
static inline int cfg80211_obss_color_collision_notify(struct net_device *dev,
u64 color_bitmap)
{
return cfg80211_bss_color_notify(dev, GFP_KERNEL,
NL80211_CMD_OBSS_COLOR_COLLISION,
0, color_bitmap);
}
/**
* cfg80211_color_change_started_notify - notify color change start
* @dev: the device on which the color is switched
* @count: the number of TBTTs until the color change happens
*
* Inform the userspace about the color change that has started.
*/
static inline int cfg80211_color_change_started_notify(struct net_device *dev,
u8 count)
{
return cfg80211_bss_color_notify(dev, GFP_KERNEL,
NL80211_CMD_COLOR_CHANGE_STARTED,
count, 0);
}
/**
* cfg80211_color_change_aborted_notify - notify color change abort
* @dev: the device on which the color is switched
*
* Inform the userspace about the color change that has aborted.
*/
static inline int cfg80211_color_change_aborted_notify(struct net_device *dev)
{
return cfg80211_bss_color_notify(dev, GFP_KERNEL,
NL80211_CMD_COLOR_CHANGE_ABORTED,
0, 0);
}
/**
* cfg80211_color_change_notify - notify color change completion
* @dev: the device on which the color was switched
*
* Inform the userspace about the color change that has completed.
*/
static inline int cfg80211_color_change_notify(struct net_device *dev)
{
return cfg80211_bss_color_notify(dev, GFP_KERNEL,
NL80211_CMD_COLOR_CHANGE_COMPLETED,
0, 0);
}
#endif /* __NET_CFG80211_H */

5
include/net/ieee80211_radiotap.h
Просмотреть файл

@ -43,6 +43,11 @@ struct ieee80211_radiotap_header {
* @it_present: (first) present word
*/
__le32 it_present;
/**
* @it_optional: all remaining presence bitmaps
*/
__le32 it_optional[];
} __packed;
/* version is always 0 */

29
include/net/mac80211.h
Просмотреть файл

@ -1711,6 +1711,10 @@ enum ieee80211_offload_flags {
* protected by fq->lock.
* @offload_flags: 802.3 -> 802.11 enapsulation offload flags, see
* &enum ieee80211_offload_flags.
* @color_change_active: marks whether a color change is ongoing. Internally it is
* write-protected by sdata_lock and local->mtx so holding either is fine
* for read access.
* @color_change_color: the bss color that will be used after the change.
*/
struct ieee80211_vif {
enum nl80211_iftype type;
@ -1739,6 +1743,9 @@ struct ieee80211_vif {
bool txqs_stopped[IEEE80211_NUM_ACS];
bool color_change_active;
u8 color_change_color;
/* must be last */
u8 drv_priv[] __aligned(sizeof(void *));
};
@ -5007,6 +5014,16 @@ void ieee80211_csa_finish(struct ieee80211_vif *vif);
*/
bool ieee80211_beacon_cntdwn_is_complete(struct ieee80211_vif *vif);
/**
* ieee80211_color_change_finish - notify mac80211 about color change
* @vif: &struct ieee80211_vif pointer from the add_interface callback.
*
* After a color change announcement was scheduled and the counter in this
* announcement hits 1, this function must be called by the driver to
* notify mac80211 that the color can be changed
*/
void ieee80211_color_change_finish(struct ieee80211_vif *vif);
/**
* ieee80211_proberesp_get - retrieve a Probe Response template
* @hw: pointer obtained from ieee80211_alloc_hw().
@ -6771,6 +6788,18 @@ struct sk_buff *
ieee80211_get_unsol_bcast_probe_resp_tmpl(struct ieee80211_hw *hw,
struct ieee80211_vif *vif);
/**
* ieeee80211_obss_color_collision_notify - notify userland about a BSS color
* collision.
*
* @vif: &struct ieee80211_vif pointer from the add_interface callback.
* @color_bitmap: a 64 bit bitmap representing the colors that the local BSS is
* aware of.
*/
void
ieeee80211_obss_color_collision_notify(struct ieee80211_vif *vif,
u64 color_bitmap);
/**
* ieee80211_is_tx_data - check if frame is a data frame
*

77
include/uapi/linux/nl80211-vnd-intel.h Normal file
Просмотреть файл

@ -0,0 +1,77 @@
/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
/*
* Copyright (C) 2012-2014, 2018-2021 Intel Corporation
* Copyright (C) 2013-2015 Intel Mobile Communications GmbH
* Copyright (C) 2016-2017 Intel Deutschland GmbH
*/
#ifndef __VENDOR_CMD_INTEL_H__
#define __VENDOR_CMD_INTEL_H__
#define INTEL_OUI 0x001735
/**
* enum iwl_mvm_vendor_cmd - supported vendor commands
* @IWL_MVM_VENDOR_CMD_GET_CSME_CONN_INFO: reports CSME connection info.
* @IWL_MVM_VENDOR_CMD_HOST_GET_OWNERSHIP: asks for ownership on the device.
* @IWL_MVM_VENDOR_CMD_ROAMING_FORBIDDEN_EVENT: notifies if roaming is allowed.
* It contains a &IWL_MVM_VENDOR_ATTR_ROAMING_FORBIDDEN and a
* &IWL_MVM_VENDOR_ATTR_VIF_ADDR attributes.
*/
enum iwl_mvm_vendor_cmd {
IWL_MVM_VENDOR_CMD_GET_CSME_CONN_INFO = 0x2d,
IWL_MVM_VENDOR_CMD_HOST_GET_OWNERSHIP = 0x30,
IWL_MVM_VENDOR_CMD_ROAMING_FORBIDDEN_EVENT = 0x32,
};
enum iwl_vendor_auth_akm_mode {
IWL_VENDOR_AUTH_OPEN,
IWL_VENDOR_AUTH_RSNA = 0x6,
IWL_VENDOR_AUTH_RSNA_PSK,
IWL_VENDOR_AUTH_SAE = 0x9,
IWL_VENDOR_AUTH_MAX,
};
/**
* enum iwl_mvm_vendor_attr - attributes used in vendor commands
* @__IWL_MVM_VENDOR_ATTR_INVALID: attribute 0 is invalid
* @IWL_MVM_VENDOR_ATTR_VIF_ADDR: interface MAC address
* @IWL_MVM_VENDOR_ATTR_ADDR: MAC address
* @IWL_MVM_VENDOR_ATTR_SSID: SSID (binary attribute, 0..32 octets)
* @IWL_MVM_VENDOR_ATTR_STA_CIPHER: the cipher to use for the station with the
* mac address specified in &IWL_MVM_VENDOR_ATTR_ADDR.
* @IWL_MVM_VENDOR_ATTR_ROAMING_FORBIDDEN: u8 attribute. Indicates whether
* roaming is forbidden or not. Value 1 means roaming is forbidden,
* 0 mean roaming is allowed.
* @IWL_MVM_VENDOR_ATTR_AUTH_MODE: u32 attribute. Authentication mode type
* as specified in &enum iwl_vendor_auth_akm_mode.
* @IWL_MVM_VENDOR_ATTR_CHANNEL_NUM: u8 attribute. Contains channel number.
* @IWL_MVM_VENDOR_ATTR_BAND: u8 attribute.
* 0 for 2.4 GHz band, 1 for 5.2GHz band and 2 for 6GHz band.
* @IWL_MVM_VENDOR_ATTR_COLLOC_CHANNEL: u32 attribute. Channel number of
* collocated AP. Relevant for 6GHz AP info.
* @IWL_MVM_VENDOR_ATTR_COLLOC_ADDR: MAC address of a collocated AP.
* Relevant for 6GHz AP info.
*
* @NUM_IWL_MVM_VENDOR_ATTR: number of vendor attributes
* @MAX_IWL_MVM_VENDOR_ATTR: highest vendor attribute number
*/
enum iwl_mvm_vendor_attr {
__IWL_MVM_VENDOR_ATTR_INVALID = 0x00,
IWL_MVM_VENDOR_ATTR_VIF_ADDR = 0x02,
IWL_MVM_VENDOR_ATTR_ADDR = 0x0a,
IWL_MVM_VENDOR_ATTR_SSID = 0x3d,
IWL_MVM_VENDOR_ATTR_STA_CIPHER = 0x51,
IWL_MVM_VENDOR_ATTR_ROAMING_FORBIDDEN = 0x64,
IWL_MVM_VENDOR_ATTR_AUTH_MODE = 0x65,
IWL_MVM_VENDOR_ATTR_CHANNEL_NUM = 0x66,
IWL_MVM_VENDOR_ATTR_BAND = 0x69,
IWL_MVM_VENDOR_ATTR_COLLOC_CHANNEL = 0x70,
IWL_MVM_VENDOR_ATTR_COLLOC_ADDR = 0x71,
NUM_IWL_MVM_VENDOR_ATTR,
MAX_IWL_MVM_VENDOR_ATTR = NUM_IWL_MVM_VENDOR_ATTR - 1,
};
#endif /* __VENDOR_CMD_INTEL_H__ */

43
include/uapi/linux/nl80211.h
Просмотреть файл

@ -1185,6 +1185,21 @@
* passed using %NL80211_ATTR_SAR_SPEC. %NL80211_ATTR_WIPHY is used to
* specify the wiphy index to be applied to.
*
* @NL80211_CMD_OBSS_COLOR_COLLISION: This notification is sent out whenever
* mac80211/drv detects a bss color collision.
*
* @NL80211_CMD_COLOR_CHANGE_REQUEST: This command is used to indicate that
* userspace wants to change the BSS color.
*
* @NL80211_CMD_COLOR_CHANGE_STARTED: Notify userland, that a color change has
* started
*
* @NL80211_CMD_COLOR_CHANGE_ABORTED: Notify userland, that the color change has
* been aborted
*
* @NL80211_CMD_COLOR_CHANGE_COMPLETED: Notify userland that the color change
* has completed
*
* @NL80211_CMD_MAX: highest used command number
* @__NL80211_CMD_AFTER_LAST: internal use
*/
@ -1417,6 +1432,14 @@ enum nl80211_commands {
NL80211_CMD_SET_SAR_SPECS,
NL80211_CMD_OBSS_COLOR_COLLISION,
NL80211_CMD_COLOR_CHANGE_REQUEST,
NL80211_CMD_COLOR_CHANGE_STARTED,
NL80211_CMD_COLOR_CHANGE_ABORTED,
NL80211_CMD_COLOR_CHANGE_COMPLETED,
/* add new commands above here */
/* used to define NL80211_CMD_MAX below */
@ -2560,6 +2583,16 @@ enum nl80211_commands {
* disassoc events to indicate that an immediate reconnect to the AP
* is desired.
*
* @NL80211_ATTR_OBSS_COLOR_BITMAP: bitmap of the u64 BSS colors for the
* %NL80211_CMD_OBSS_COLOR_COLLISION event.
*
* @NL80211_ATTR_COLOR_CHANGE_COUNT: u8 attribute specifying the number of TBTT's
* until the color switch event.
* @NL80211_ATTR_COLOR_CHANGE_COLOR: u8 attribute specifying the color that we are
* switching to
* @NL80211_ATTR_COLOR_CHANGE_ELEMS: Nested set of attributes containing the IE
* information for the time while performing a color switch.
*
* @NUM_NL80211_ATTR: total number of nl80211_attrs available
* @NL80211_ATTR_MAX: highest attribute number currently defined
* @__NL80211_ATTR_AFTER_LAST: internal use
@ -3057,6 +3090,12 @@ enum nl80211_attrs {
NL80211_ATTR_DISABLE_HE,
NL80211_ATTR_OBSS_COLOR_BITMAP,
NL80211_ATTR_COLOR_CHANGE_COUNT,
NL80211_ATTR_COLOR_CHANGE_COLOR,
NL80211_ATTR_COLOR_CHANGE_ELEMS,
/* add attributes here, update the policy in nl80211.c */
__NL80211_ATTR_AFTER_LAST,
@ -5953,6 +5992,9 @@ enum nl80211_feature_flags {
* frame protection for all management frames exchanged during the
* negotiation and range measurement procedure.
*
* @NL80211_EXT_FEATURE_BSS_COLOR: The driver supports BSS color collision
* detection and change announcemnts.
*
* @NUM_NL80211_EXT_FEATURES: number of extended features.
* @MAX_NL80211_EXT_FEATURES: highest extended feature index.
*/
@ -6017,6 +6059,7 @@ enum nl80211_ext_feature_index {
NL80211_EXT_FEATURE_SECURE_LTF,
NL80211_EXT_FEATURE_SECURE_RTT,
NL80211_EXT_FEATURE_PROT_RANGE_NEGO_AND_MEASURE,
NL80211_EXT_FEATURE_BSS_COLOR,
/* add new features before the definition below */
NUM_NL80211_EXT_FEATURES,

234
net/mac80211/cfg.c
Просмотреть файл

@ -828,9 +828,11 @@ static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
return ret;
}
static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
const u8 *resp, size_t resp_len,
const struct ieee80211_csa_settings *csa)
static int
ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
const u8 *resp, size_t resp_len,
const struct ieee80211_csa_settings *csa,
const struct ieee80211_color_change_settings *cca)
{
struct probe_resp *new, *old;
@ -850,6 +852,8 @@ static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_presp,
csa->n_counter_offsets_presp *
sizeof(new->cntdwn_counter_offsets[0]));
else if (cca)
new->cntdwn_counter_offsets[0] = cca->counter_offset_presp;
rcu_assign_pointer(sdata->u.ap.probe_resp, new);
if (old)
@ -955,7 +959,8 @@ static int ieee80211_set_ftm_responder_params(
static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
struct cfg80211_beacon_data *params,
const struct ieee80211_csa_settings *csa)
const struct ieee80211_csa_settings *csa,
const struct ieee80211_color_change_settings *cca)
{
struct beacon_data *new, *old;
int new_head_len, new_tail_len;
@ -1004,6 +1009,9 @@ static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
memcpy(new->cntdwn_counter_offsets, csa->counter_offsets_beacon,
csa->n_counter_offsets_beacon *
sizeof(new->cntdwn_counter_offsets[0]));
} else if (cca) {
new->cntdwn_current_counter = cca->count;
new->cntdwn_counter_offsets[0] = cca->counter_offset_beacon;
}
/* copy in head */
@ -1020,7 +1028,7 @@ static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
memcpy(new->tail, old->tail, new_tail_len);
err = ieee80211_set_probe_resp(sdata, params->probe_resp,
params->probe_resp_len, csa);
params->probe_resp_len, csa, cca);
if (err < 0) {
kfree(new);
return err;
@ -1175,7 +1183,7 @@ static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL))
sdata->vif.bss_conf.beacon_tx_rate = params->beacon_rate;
err = ieee80211_assign_beacon(sdata, &params->beacon, NULL);
err = ieee80211_assign_beacon(sdata, &params->beacon, NULL, NULL);
if (err < 0)
goto error;
changed |= err;
@ -1230,17 +1238,17 @@ static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
sdata_assert_lock(sdata);
/* don't allow changing the beacon while CSA is in place - offset
/* don't allow changing the beacon while a countdown is in place - offset
* of channel switch counter may change
*/
if (sdata->vif.csa_active)
if (sdata->vif.csa_active || sdata->vif.color_change_active)
return -EBUSY;
old = sdata_dereference(sdata->u.ap.beacon, sdata);
if (!old)
return -ENOENT;
err = ieee80211_assign_beacon(sdata, params, NULL);
err = ieee80211_assign_beacon(sdata, params, NULL, NULL);
if (err < 0)
return err;
ieee80211_bss_info_change_notify(sdata, err);
@ -3156,7 +3164,7 @@ static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
switch (sdata->vif.type) {
case NL80211_IFTYPE_AP:
err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
NULL);
NULL, NULL);
kfree(sdata->u.ap.next_beacon);
sdata->u.ap.next_beacon = NULL;
@ -3322,7 +3330,7 @@ static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
csa.count = params->count;
err = ieee80211_assign_beacon(sdata, &params->beacon_csa, &csa);
err = ieee80211_assign_beacon(sdata, &params->beacon_csa, &csa, NULL);
if (err < 0) {
kfree(sdata->u.ap.next_beacon);
return err;
@ -3411,6 +3419,15 @@ static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
return 0;
}
static void ieee80211_color_change_abort(struct ieee80211_sub_if_data *sdata)
{
sdata->vif.color_change_active = false;
kfree(sdata->u.ap.next_beacon);
sdata->u.ap.next_beacon = NULL;
cfg80211_color_change_aborted_notify(sdata->dev);
}
static int
__ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
struct cfg80211_csa_settings *params)
@ -3479,6 +3496,10 @@ __ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
goto out;
}
/* if there is a color change in progress, abort it */
if (sdata->vif.color_change_active)
ieee80211_color_change_abort(sdata);
err = ieee80211_set_csa_beacon(sdata, params, &changed);
if (err) {
ieee80211_vif_unreserve_chanctx(sdata);
@ -4130,6 +4151,196 @@ static int ieee80211_set_sar_specs(struct wiphy *wiphy,
return local->ops->set_sar_specs(&local->hw, sar);
}
static int
ieee80211_set_after_color_change_beacon(struct ieee80211_sub_if_data *sdata,
u32 *changed)
{
switch (sdata->vif.type) {
case NL80211_IFTYPE_AP: {
int ret;
ret = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
NULL, NULL);
kfree(sdata->u.ap.next_beacon);
sdata->u.ap.next_beacon = NULL;
if (ret < 0)
return ret;
*changed |= ret;
break;
}
default:
WARN_ON_ONCE(1);
return -EINVAL;
}
return 0;
}
static int
ieee80211_set_color_change_beacon(struct ieee80211_sub_if_data *sdata,
struct cfg80211_color_change_settings *params,
u32 *changed)
{
struct ieee80211_color_change_settings color_change = {};
int err;
switch (sdata->vif.type) {
case NL80211_IFTYPE_AP:
sdata->u.ap.next_beacon =
cfg80211_beacon_dup(&params->beacon_next);
if (!sdata->u.ap.next_beacon)
return -ENOMEM;
if (params->count <= 1)
break;
color_change.counter_offset_beacon =
params->counter_offset_beacon;
color_change.counter_offset_presp =
params->counter_offset_presp;
color_change.count = params->count;
err = ieee80211_assign_beacon(sdata, &params->beacon_color_change,
NULL, &color_change);
if (err < 0) {
kfree(sdata->u.ap.next_beacon);
return err;
}
*changed |= err;
break;
default:
return -EOPNOTSUPP;
}
return 0;
}
static void
ieee80211_color_change_bss_config_notify(struct ieee80211_sub_if_data *sdata,
u8 color, int enable, u32 changed)
{
sdata->vif.bss_conf.he_bss_color.color = color;
sdata->vif.bss_conf.he_bss_color.enabled = enable;
changed |= BSS_CHANGED_HE_BSS_COLOR;
ieee80211_bss_info_change_notify(sdata, changed);
}
static int ieee80211_color_change_finalize(struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_local *local = sdata->local;
u32 changed = 0;
int err;
sdata_assert_lock(sdata);
lockdep_assert_held(&local->mtx);
sdata->vif.color_change_active = false;
err = ieee80211_set_after_color_change_beacon(sdata, &changed);
if (err) {
cfg80211_color_change_aborted_notify(sdata->dev);
return err;
}
ieee80211_color_change_bss_config_notify(sdata,
sdata->vif.color_change_color,
1, changed);
cfg80211_color_change_notify(sdata->dev);
return 0;
}
void ieee80211_color_change_finalize_work(struct work_struct *work)
{
struct ieee80211_sub_if_data *sdata =
container_of(work, struct ieee80211_sub_if_data,
color_change_finalize_work);
struct ieee80211_local *local = sdata->local;
sdata_lock(sdata);
mutex_lock(&local->mtx);
/* AP might have been stopped while waiting for the lock. */
if (!sdata->vif.color_change_active)
goto unlock;
if (!ieee80211_sdata_running(sdata))
goto unlock;
ieee80211_color_change_finalize(sdata);
unlock:
mutex_unlock(&local->mtx);
sdata_unlock(sdata);
}
void ieee80211_color_change_finish(struct ieee80211_vif *vif)
{
struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
ieee80211_queue_work(&sdata->local->hw,
&sdata->color_change_finalize_work);
}
EXPORT_SYMBOL_GPL(ieee80211_color_change_finish);
void
ieeee80211_obss_color_collision_notify(struct ieee80211_vif *vif,
u64 color_bitmap)
{
struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
if (sdata->vif.color_change_active || sdata->vif.csa_active)
return;
cfg80211_obss_color_collision_notify(sdata->dev, color_bitmap);
}
EXPORT_SYMBOL_GPL(ieeee80211_obss_color_collision_notify);
static int
ieee80211_color_change(struct wiphy *wiphy, struct net_device *dev,
struct cfg80211_color_change_settings *params)
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_local *local = sdata->local;
u32 changed = 0;
int err;
sdata_assert_lock(sdata);
mutex_lock(&local->mtx);
/* don't allow another color change if one is already active or if csa
* is active
*/
if (sdata->vif.color_change_active || sdata->vif.csa_active) {
err = -EBUSY;
goto out;
}
err = ieee80211_set_color_change_beacon(sdata, params, &changed);
if (err)
goto out;
sdata->vif.color_change_active = true;
sdata->vif.color_change_color = params->color;
cfg80211_color_change_started_notify(sdata->dev, params->count);
if (changed)
ieee80211_color_change_bss_config_notify(sdata, 0, 0, changed);
else
/* if the beacon didn't change, we can finalize immediately */
ieee80211_color_change_finalize(sdata);
out:
mutex_unlock(&local->mtx);
return err;
}
const struct cfg80211_ops mac80211_config_ops = {
.add_virtual_intf = ieee80211_add_iface,
.del_virtual_intf = ieee80211_del_iface,
@ -4233,4 +4444,5 @@ const struct cfg80211_ops mac80211_config_ops = {
.set_tid_config = ieee80211_set_tid_config,
.reset_tid_config = ieee80211_reset_tid_config,
.set_sar_specs = ieee80211_set_sar_specs,
.color_change = ieee80211_color_change,
};

15
net/mac80211/ibss.c
Просмотреть файл

@ -489,7 +489,6 @@ int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata,
const struct cfg80211_bss_ies *ies;
u16 capability = WLAN_CAPABILITY_IBSS;
u64 tsf;
int ret = 0;
sdata_assert_lock(sdata);
@ -501,10 +500,8 @@ int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata,
ifibss->ssid_len, IEEE80211_BSS_TYPE_IBSS,
IEEE80211_PRIVACY(ifibss->privacy));
if (WARN_ON(!cbss)) {
ret = -EINVAL;
goto out;
}
if (WARN_ON(!cbss))
return -EINVAL;
rcu_read_lock();
ies = rcu_dereference(cbss->ies);
@ -520,18 +517,14 @@ int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata,
sdata->vif.bss_conf.basic_rates,
capability, tsf, &ifibss->chandef,
NULL, csa_settings);
if (!presp) {
ret = -ENOMEM;
goto out;
}
if (!presp)
return -ENOMEM;
rcu_assign_pointer(ifibss->presp, presp);
if (old_presp)
kfree_rcu(old_presp, rcu_head);
return BSS_CHANGED_BEACON;
out:
return ret;
}
int ieee80211_ibss_finish_csa(struct ieee80211_sub_if_data *sdata)

12
net/mac80211/ieee80211_i.h
Просмотреть файл

@ -25,6 +25,7 @@
#include <linux/leds.h>
#include <linux/idr.h>
#include <linux/rhashtable.h>
#include <linux/rbtree.h>
#include <net/ieee80211_radiotap.h>
#include <net/cfg80211.h>
#include <net/mac80211.h>
@ -244,6 +245,12 @@ struct ieee80211_csa_settings {
u8 count;
};
struct ieee80211_color_change_settings {
u16 counter_offset_beacon;
u16 counter_offset_presp;
u8 count;
};
struct beacon_data {
u8 *head, *tail;
int head_len, tail_len;
@ -923,6 +930,8 @@ struct ieee80211_sub_if_data {
bool csa_block_tx; /* write-protected by sdata_lock and local->mtx */
struct cfg80211_chan_def csa_chandef;
struct work_struct color_change_finalize_work;
struct list_head assigned_chanctx_list; /* protected by chanctx_mtx */
struct list_head reserved_chanctx_list; /* protected by chanctx_mtx */
@ -1887,6 +1896,9 @@ void ieee80211_csa_finalize_work(struct work_struct *work);
int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
struct cfg80211_csa_settings *params);
/* color change handling */
void ieee80211_color_change_finalize_work(struct work_struct *work);
/* interface handling */
#define MAC80211_SUPPORTED_FEATURES_TX (NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | \
NETIF_F_HW_CSUM | NETIF_F_SG | \

13
net/mac80211/iface.c
Просмотреть файл

@ -462,6 +462,7 @@ static void ieee80211_do_stop(struct ieee80211_sub_if_data *sdata, bool going_do
sdata_unlock(sdata);
cancel_work_sync(&sdata->csa_finalize_work);
cancel_work_sync(&sdata->color_change_finalize_work);
cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
@ -1531,6 +1532,7 @@ static void ieee80211_setup_sdata(struct ieee80211_sub_if_data *sdata,
INIT_WORK(&sdata->work, ieee80211_iface_work);
INIT_WORK(&sdata->recalc_smps, ieee80211_recalc_smps_work);
INIT_WORK(&sdata->csa_finalize_work, ieee80211_csa_finalize_work);
INIT_WORK(&sdata->color_change_finalize_work, ieee80211_color_change_finalize_work);
INIT_LIST_HEAD(&sdata->assigned_chanctx_list);
INIT_LIST_HEAD(&sdata->reserved_chanctx_list);
@ -2001,9 +2003,16 @@ int ieee80211_if_add(struct ieee80211_local *local, const char *name,
netdev_set_default_ethtool_ops(ndev, &ieee80211_ethtool_ops);
/* MTU range: 256 - 2304 */
/* MTU range is normally 256 - 2304, where the upper limit is
* the maximum MSDU size. Monitor interfaces send and receive
* MPDU and A-MSDU frames which may be much larger so we do
* not impose an upper limit in that case.
*/
ndev->min_mtu = 256;
ndev->max_mtu = local->hw.max_mtu;
if (type == NL80211_IFTYPE_MONITOR)
ndev->max_mtu = 0;
else
ndev->max_mtu = local->hw.max_mtu;
ret = cfg80211_register_netdevice(ndev);
if (ret) {

2
net/mac80211/main.c
Просмотреть файл

@ -1020,7 +1020,7 @@ int ieee80211_register_hw(struct ieee80211_hw *hw)
iftd = &sband->iftype_data[i];
supp_he = supp_he || (iftd && iftd->he_cap.has_he);
supp_he = supp_he || iftd->he_cap.has_he;
}
/* HT, VHT, HE require QoS, thus >= 4 queues */

29
net/mac80211/rx.c
Просмотреть файл

@ -359,7 +359,12 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
put_unaligned_le32(it_present_val, it_present);
pos = (void *)(it_present + 1);
/* This references through an offset into it_optional[] rather
* than via it_present otherwise later uses of pos will cause
* the compiler to think we have walked past the end of the
* struct member.
*/
pos = (void *)&rthdr->it_optional[it_present - rthdr->it_optional];
/* the order of the following fields is important */
@ -372,7 +377,7 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
ieee80211_calculate_rx_timestamp(local, status,
mpdulen, 0),
pos);
rthdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_TSFT);
rthdr->it_present |= cpu_to_le32(BIT(IEEE80211_RADIOTAP_TSFT));
pos += 8;
}
@ -396,7 +401,7 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
*pos = 0;
} else {
int shift = 0;
rthdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_RATE);
rthdr->it_present |= cpu_to_le32(BIT(IEEE80211_RADIOTAP_RATE));
if (status->bw == RATE_INFO_BW_10)
shift = 1;
else if (status->bw == RATE_INFO_BW_5)
@ -433,7 +438,7 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
!(status->flag & RX_FLAG_NO_SIGNAL_VAL)) {
*pos = status->signal;
rthdr->it_present |=
cpu_to_le32(1 << IEEE80211_RADIOTAP_DBM_ANTSIGNAL);
cpu_to_le32(BIT(IEEE80211_RADIOTAP_DBM_ANTSIGNAL));
pos++;
}
@ -459,7 +464,7 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
if (status->encoding == RX_ENC_HT) {
unsigned int stbc;
rthdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_MCS);
rthdr->it_present |= cpu_to_le32(BIT(IEEE80211_RADIOTAP_MCS));
*pos++ = local->hw.radiotap_mcs_details;
*pos = 0;
if (status->enc_flags & RX_ENC_FLAG_SHORT_GI)
@ -483,7 +488,7 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
while ((pos - (u8 *)rthdr) & 3)
pos++;
rthdr->it_present |=
cpu_to_le32(1 << IEEE80211_RADIOTAP_AMPDU_STATUS);
cpu_to_le32(BIT(IEEE80211_RADIOTAP_AMPDU_STATUS));
put_unaligned_le32(status->ampdu_reference, pos);
pos += 4;
if (status->flag & RX_FLAG_AMPDU_LAST_KNOWN)
@ -510,7 +515,7 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
if (status->encoding == RX_ENC_VHT) {
u16 known = local->hw.radiotap_vht_details;
rthdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_VHT);
rthdr->it_present |= cpu_to_le32(BIT(IEEE80211_RADIOTAP_VHT));
put_unaligned_le16(known, pos);
pos += 2;
/* flags */
@ -554,7 +559,7 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
u8 flags = IEEE80211_RADIOTAP_TIMESTAMP_FLAG_32BIT;
rthdr->it_present |=
cpu_to_le32(1 << IEEE80211_RADIOTAP_TIMESTAMP);
cpu_to_le32(BIT(IEEE80211_RADIOTAP_TIMESTAMP));
/* ensure 8 byte alignment */
while ((pos - (u8 *)rthdr) & 7)
@ -642,7 +647,7 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
/* ensure 2 byte alignment */
while ((pos - (u8 *)rthdr) & 1)
pos++;
rthdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_HE);
rthdr->it_present |= cpu_to_le32(BIT(IEEE80211_RADIOTAP_HE));
memcpy(pos, &he, sizeof(he));
pos += sizeof(he);
}
@ -652,14 +657,14 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
/* ensure 2 byte alignment */
while ((pos - (u8 *)rthdr) & 1)
pos++;
rthdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_HE_MU);
rthdr->it_present |= cpu_to_le32(BIT(IEEE80211_RADIOTAP_HE_MU));
memcpy(pos, &he_mu, sizeof(he_mu));
pos += sizeof(he_mu);
}
if (status->flag & RX_FLAG_NO_PSDU) {
rthdr->it_present |=
cpu_to_le32(1 << IEEE80211_RADIOTAP_ZERO_LEN_PSDU);
cpu_to_le32(BIT(IEEE80211_RADIOTAP_ZERO_LEN_PSDU));
*pos++ = status->zero_length_psdu_type;
}
@ -667,7 +672,7 @@ ieee80211_add_rx_radiotap_header(struct ieee80211_local *local,
/* ensure 2 byte alignment */
while ((pos - (u8 *)rthdr) & 1)
pos++;
rthdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_LSIG);
rthdr->it_present |= cpu_to_le32(BIT(IEEE80211_RADIOTAP_LSIG));
memcpy(pos, &lsig, sizeof(lsig));
pos += sizeof(lsig);
}

2
net/mac80211/sta_info.c
Просмотреть файл

@ -543,7 +543,7 @@ static int sta_info_insert_check(struct sta_info *sta)
return -ENETDOWN;
if (WARN_ON(ether_addr_equal(sta->sta.addr, sdata->vif.addr) ||
is_multicast_ether_addr(sta->sta.addr)))
!is_valid_ether_addr(sta->sta.addr)))
return -EINVAL;
/* The RCU read lock is required by rhashtable due to

16
net/mac80211/status.c
Просмотреть файл

@ -305,8 +305,8 @@ ieee80211_add_tx_radiotap_header(struct ieee80211_local *local,
memset(rthdr, 0, rtap_len);
rthdr->it_len = cpu_to_le16(rtap_len);
rthdr->it_present =
cpu_to_le32((1 << IEEE80211_RADIOTAP_TX_FLAGS) |
(1 << IEEE80211_RADIOTAP_DATA_RETRIES));
cpu_to_le32(BIT(IEEE80211_RADIOTAP_TX_FLAGS) |
BIT(IEEE80211_RADIOTAP_DATA_RETRIES));
pos = (unsigned char *)(rthdr + 1);
/*
@ -331,7 +331,7 @@ ieee80211_add_tx_radiotap_header(struct ieee80211_local *local,
sband->bitrates[info->status.rates[0].idx].bitrate;
if (legacy_rate) {
rthdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_RATE);
rthdr->it_present |= cpu_to_le32(BIT(IEEE80211_RADIOTAP_RATE));
*pos = DIV_ROUND_UP(legacy_rate, 5 * (1 << shift));
/* padding for tx flags */
pos += 2;
@ -358,7 +358,7 @@ ieee80211_add_tx_radiotap_header(struct ieee80211_local *local,
if (status && status->rate &&
(status->rate->flags & RATE_INFO_FLAGS_MCS)) {
rthdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_MCS);
rthdr->it_present |= cpu_to_le32(BIT(IEEE80211_RADIOTAP_MCS));
pos[0] = IEEE80211_RADIOTAP_MCS_HAVE_MCS |
IEEE80211_RADIOTAP_MCS_HAVE_GI |
IEEE80211_RADIOTAP_MCS_HAVE_BW;
@ -374,7 +374,7 @@ ieee80211_add_tx_radiotap_header(struct ieee80211_local *local,
(IEEE80211_RADIOTAP_VHT_KNOWN_GI |
IEEE80211_RADIOTAP_VHT_KNOWN_BANDWIDTH);
rthdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_VHT);
rthdr->it_present |= cpu_to_le32(BIT(IEEE80211_RADIOTAP_VHT));
/* required alignment from rthdr */
pos = (u8 *)rthdr + ALIGN(pos - (u8 *)rthdr, 2);
@ -419,7 +419,7 @@ ieee80211_add_tx_radiotap_header(struct ieee80211_local *local,
(status->rate->flags & RATE_INFO_FLAGS_HE_MCS)) {
struct ieee80211_radiotap_he *he;
rthdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_HE);
rthdr->it_present |= cpu_to_le32(BIT(IEEE80211_RADIOTAP_HE));
/* required alignment from rthdr */
pos = (u8 *)rthdr + ALIGN(pos - (u8 *)rthdr, 2);
@ -495,7 +495,7 @@ ieee80211_add_tx_radiotap_header(struct ieee80211_local *local,
/* IEEE80211_RADIOTAP_MCS
* IEEE80211_RADIOTAP_VHT */
if (info->status.rates[0].flags & IEEE80211_TX_RC_MCS) {
rthdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_MCS);
rthdr->it_present |= cpu_to_le32(BIT(IEEE80211_RADIOTAP_MCS));
pos[0] = IEEE80211_RADIOTAP_MCS_HAVE_MCS |
IEEE80211_RADIOTAP_MCS_HAVE_GI |
IEEE80211_RADIOTAP_MCS_HAVE_BW;
@ -512,7 +512,7 @@ ieee80211_add_tx_radiotap_header(struct ieee80211_local *local,
(IEEE80211_RADIOTAP_VHT_KNOWN_GI |
IEEE80211_RADIOTAP_VHT_KNOWN_BANDWIDTH);
rthdr->it_present |= cpu_to_le32(1 << IEEE80211_RADIOTAP_VHT);
rthdr->it_present |= cpu_to_le32(BIT(IEEE80211_RADIOTAP_VHT));
/* required alignment from rthdr */
pos = (u8 *)rthdr + ALIGN(pos - (u8 *)rthdr, 2);

33
net/mac80211/tx.c
Просмотреть файл

@ -3242,7 +3242,9 @@ static bool ieee80211_amsdu_prepare_head(struct ieee80211_sub_if_data *sdata,
if (info->control.flags & IEEE80211_TX_CTRL_AMSDU)
return true;
if (!ieee80211_amsdu_realloc_pad(local, skb, sizeof(*amsdu_hdr)))
if (!ieee80211_amsdu_realloc_pad(local, skb,
sizeof(*amsdu_hdr) +
local->hw.extra_tx_headroom))
return false;
data = skb_push(skb, sizeof(*amsdu_hdr));
@ -4782,11 +4784,11 @@ static int ieee80211_beacon_add_tim(struct ieee80211_sub_if_data *sdata,
static void ieee80211_set_beacon_cntdwn(struct ieee80211_sub_if_data *sdata,
struct beacon_data *beacon)
{
u8 *beacon_data, count, max_count = 1;
struct probe_resp *resp;
u8 *beacon_data;
size_t beacon_data_len;
u16 *bcn_offsets;
int i;
u8 count = beacon->cntdwn_current_counter;
switch (sdata->vif.type) {
case NL80211_IFTYPE_AP:
@ -4806,21 +4808,27 @@ static void ieee80211_set_beacon_cntdwn(struct ieee80211_sub_if_data *sdata,
}
rcu_read_lock();
for (i = 0; i < IEEE80211_MAX_CNTDWN_COUNTERS_NUM; ++i) {
resp = rcu_dereference(sdata->u.ap.probe_resp);
resp = rcu_dereference(sdata->u.ap.probe_resp);
if (beacon->cntdwn_counter_offsets[i]) {
if (WARN_ON_ONCE(beacon->cntdwn_counter_offsets[i] >=
beacon_data_len)) {
bcn_offsets = beacon->cntdwn_counter_offsets;
count = beacon->cntdwn_current_counter;
if (sdata->vif.csa_active)
max_count = IEEE80211_MAX_CNTDWN_COUNTERS_NUM;
for (i = 0; i < max_count; ++i) {
if (bcn_offsets[i]) {
if (WARN_ON_ONCE(bcn_offsets[i] >= beacon_data_len)) {
rcu_read_unlock();
return;
}
beacon_data[beacon->cntdwn_counter_offsets[i]] = count;
beacon_data[bcn_offsets[i]] = count;
}
if (sdata->vif.type == NL80211_IFTYPE_AP && resp)
resp->data[resp->cntdwn_counter_offsets[i]] = count;
if (sdata->vif.type == NL80211_IFTYPE_AP && resp) {
u16 *resp_offsets = resp->cntdwn_counter_offsets;
resp->data[resp_offsets[i]] = count;
}
}
rcu_read_unlock();
}
@ -5030,6 +5038,7 @@ __ieee80211_beacon_get(struct ieee80211_hw *hw,
if (offs) {
offs->tim_offset = beacon->head_len;
offs->tim_length = skb->len - beacon->head_len;
offs->cntdwn_counter_offs[0] = beacon->cntdwn_counter_offsets[0];
/* for AP the csa offsets are from tail */
csa_off_base = skb->len;

157
net/wireless/nl80211.c
Просмотреть файл

@ -759,6 +759,10 @@ static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
[NL80211_ATTR_RECONNECT_REQUESTED] = { .type = NLA_REJECT },
[NL80211_ATTR_SAR_SPEC] = NLA_POLICY_NESTED(sar_policy),
[NL80211_ATTR_DISABLE_HE] = { .type = NLA_FLAG },
[NL80211_ATTR_OBSS_COLOR_BITMAP] = { .type = NLA_U64 },
[NL80211_ATTR_COLOR_CHANGE_COUNT] = { .type = NLA_U8 },
[NL80211_ATTR_COLOR_CHANGE_COLOR] = { .type = NLA_U8 },
[NL80211_ATTR_COLOR_CHANGE_ELEMS] = NLA_POLICY_NESTED(nl80211_policy),
};
/* policy for the key attributes */
@ -14800,6 +14804,106 @@ bad_tid_conf:
return ret;
}
static int nl80211_color_change(struct sk_buff *skb, struct genl_info *info)
{
struct cfg80211_registered_device *rdev = info->user_ptr[0];
struct cfg80211_color_change_settings params = {};
struct net_device *dev = info->user_ptr[1];
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct nlattr **tb;
u16 offset;
int err;
if (!rdev->ops->color_change)
return -EOPNOTSUPP;
if (!wiphy_ext_feature_isset(&rdev->wiphy,
NL80211_EXT_FEATURE_BSS_COLOR))
return -EOPNOTSUPP;
if (wdev->iftype != NL80211_IFTYPE_AP)
return -EOPNOTSUPP;
if (!info->attrs[NL80211_ATTR_COLOR_CHANGE_COUNT] ||
!info->attrs[NL80211_ATTR_COLOR_CHANGE_COLOR] ||
!info->attrs[NL80211_ATTR_COLOR_CHANGE_ELEMS])
return -EINVAL;
params.count = nla_get_u8(info->attrs[NL80211_ATTR_COLOR_CHANGE_COUNT]);
params.color = nla_get_u8(info->attrs[NL80211_ATTR_COLOR_CHANGE_COLOR]);
err = nl80211_parse_beacon(rdev, info->attrs, &params.beacon_next);
if (err)
return err;
tb = kcalloc(NL80211_ATTR_MAX + 1, sizeof(*tb), GFP_KERNEL);
if (!tb)
return -ENOMEM;
err = nla_parse_nested(tb, NL80211_ATTR_MAX,
info->attrs[NL80211_ATTR_COLOR_CHANGE_ELEMS],
nl80211_policy, info->extack);
if (err)
goto out;
err = nl80211_parse_beacon(rdev, tb, &params.beacon_color_change);
if (err)
goto out;
if (!tb[NL80211_ATTR_CNTDWN_OFFS_BEACON]) {
err = -EINVAL;
goto out;
}
if (nla_len(tb[NL80211_ATTR_CNTDWN_OFFS_BEACON]) != sizeof(u16)) {
err = -EINVAL;
goto out;
}
offset = nla_get_u16(tb[NL80211_ATTR_CNTDWN_OFFS_BEACON]);
if (offset >= params.beacon_color_change.tail_len) {
err = -EINVAL;
goto out;
}
if (params.beacon_color_change.tail[offset] != params.count) {
err = -EINVAL;
goto out;
}
params.counter_offset_beacon = offset;
if (tb[NL80211_ATTR_CNTDWN_OFFS_PRESP]) {
if (nla_len(tb[NL80211_ATTR_CNTDWN_OFFS_PRESP]) !=
sizeof(u16)) {
err = -EINVAL;
goto out;
}
offset = nla_get_u16(tb[NL80211_ATTR_CNTDWN_OFFS_PRESP]);
if (offset >= params.beacon_color_change.probe_resp_len) {
err = -EINVAL;
goto out;
}
if (params.beacon_color_change.probe_resp[offset] !=
params.count) {
err = -EINVAL;
goto out;
}
params.counter_offset_presp = offset;
}
wdev_lock(wdev);
err = rdev_color_change(rdev, dev, &params);
wdev_unlock(wdev);
out:
kfree(tb);
return err;
}
#define NL80211_FLAG_NEED_WIPHY 0x01
#define NL80211_FLAG_NEED_NETDEV 0x02
#define NL80211_FLAG_NEED_RTNL 0x04
@ -15795,6 +15899,14 @@ static const struct genl_small_ops nl80211_small_ops[] = {
.internal_flags = NL80211_FLAG_NEED_WIPHY |
NL80211_FLAG_NEED_RTNL,
},
{
.cmd = NL80211_CMD_COLOR_CHANGE_REQUEST,
.validate = GENL_DONT_VALIDATE_STRICT | GENL_DONT_VALIDATE_DUMP,
.doit = nl80211_color_change,
.flags = GENL_UNS_ADMIN_PERM,
.internal_flags = NL80211_FLAG_NEED_NETDEV_UP |
NL80211_FLAG_NEED_RTNL,
},
};
static struct genl_family nl80211_fam __ro_after_init = {
@ -17424,6 +17536,51 @@ void cfg80211_ch_switch_started_notify(struct net_device *dev,
}
EXPORT_SYMBOL(cfg80211_ch_switch_started_notify);
int cfg80211_bss_color_notify(struct net_device *dev, gfp_t gfp,
enum nl80211_commands cmd, u8 count,
u64 color_bitmap)
{
struct wireless_dev *wdev = dev->ieee80211_ptr;
struct wiphy *wiphy = wdev->wiphy;
struct cfg80211_registered_device *rdev = wiphy_to_rdev(wiphy);
struct sk_buff *msg;
void *hdr;
ASSERT_WDEV_LOCK(wdev);
trace_cfg80211_bss_color_notify(dev, cmd, count, color_bitmap);
msg = nlmsg_new(NLMSG_DEFAULT_SIZE, gfp);
if (!msg)
return -ENOMEM;
hdr = nl80211hdr_put(msg, 0, 0, 0, cmd);
if (!hdr)
goto nla_put_failure;
if (nla_put_u32(msg, NL80211_ATTR_IFINDEX, dev->ifindex))
goto nla_put_failure;
if (cmd == NL80211_CMD_COLOR_CHANGE_STARTED &&
nla_put_u32(msg, NL80211_ATTR_COLOR_CHANGE_COUNT, count))
goto nla_put_failure;
if (cmd == NL80211_CMD_OBSS_COLOR_COLLISION &&
nla_put_u64_64bit(msg, NL80211_ATTR_OBSS_COLOR_BITMAP,
color_bitmap, NL80211_ATTR_PAD))
goto nla_put_failure;
genlmsg_end(msg, hdr);
return genlmsg_multicast_netns(&nl80211_fam, wiphy_net(&rdev->wiphy),
msg, 0, NL80211_MCGRP_MLME, gfp);
nla_put_failure:
nlmsg_free(msg);
return -EINVAL;
}
EXPORT_SYMBOL(cfg80211_bss_color_notify);
void
nl80211_radar_notify(struct cfg80211_registered_device *rdev,
const struct cfg80211_chan_def *chandef,

9
net/wireless/radiotap.c
Просмотреть файл

@ -115,23 +115,22 @@ int ieee80211_radiotap_iterator_init(
iterator->_max_length = get_unaligned_le16(&radiotap_header->it_len);
iterator->_arg_index = 0;
iterator->_bitmap_shifter = get_unaligned_le32(&radiotap_header->it_present);
iterator->_arg = (uint8_t *)radiotap_header + sizeof(*radiotap_header);
iterator->_arg = (uint8_t *)radiotap_header->it_optional;
iterator->_reset_on_ext = 0;
iterator->_next_bitmap = &radiotap_header->it_present;
iterator->_next_bitmap++;
iterator->_next_bitmap = radiotap_header->it_optional;
iterator->_vns = vns;
iterator->current_namespace = &radiotap_ns;
iterator->is_radiotap_ns = 1;
/* find payload start allowing for extended bitmap(s) */
if (iterator->_bitmap_shifter & (1<<IEEE80211_RADIOTAP_EXT)) {
if (iterator->_bitmap_shifter & (BIT(IEEE80211_RADIOTAP_EXT))) {
if ((unsigned long)iterator->_arg -
(unsigned long)iterator->_rtheader + sizeof(uint32_t) >
(unsigned long)iterator->_max_length)
return -EINVAL;
while (get_unaligned_le32(iterator->_arg) &
(1 << IEEE80211_RADIOTAP_EXT)) {
(BIT(IEEE80211_RADIOTAP_EXT))) {
iterator->_arg += sizeof(uint32_t);
/*

13
net/wireless/rdev-ops.h
Просмотреть файл

@ -1368,4 +1368,17 @@ static inline int rdev_set_sar_specs(struct cfg80211_registered_device *rdev,
return ret;
}
static inline int rdev_color_change(struct cfg80211_registered_device *rdev,
struct net_device *dev,
struct cfg80211_color_change_settings *params)
{
int ret;
trace_rdev_color_change(&rdev->wiphy, dev, params);
ret = rdev->ops->color_change(&rdev->wiphy, dev, params);
trace_rdev_return_int(&rdev->wiphy, ret);
return ret;
}
#endif /* __CFG80211_RDEV_OPS */

46
net/wireless/trace.h
Просмотреть файл

@ -3597,6 +3597,52 @@ TRACE_EVENT(rdev_set_sar_specs,
WIPHY_PR_ARG, __entry->type, __entry->num)
);
TRACE_EVENT(rdev_color_change,
TP_PROTO(struct wiphy *wiphy, struct net_device *netdev,
struct cfg80211_color_change_settings *params),
TP_ARGS(wiphy, netdev, params),
TP_STRUCT__entry(
WIPHY_ENTRY
NETDEV_ENTRY
__field(u8, count)
__field(u16, bcn_ofs)
__field(u16, pres_ofs)
),
TP_fast_assign(
WIPHY_ASSIGN;
NETDEV_ASSIGN;
__entry->count = params->count;
__entry->bcn_ofs = params->counter_offset_beacon;
__entry->pres_ofs = params->counter_offset_presp;
),
TP_printk(WIPHY_PR_FMT ", " NETDEV_PR_FMT
", count: %u",
WIPHY_PR_ARG, NETDEV_PR_ARG,
__entry->count)
);
TRACE_EVENT(cfg80211_bss_color_notify,
TP_PROTO(struct net_device *netdev,
enum nl80211_commands cmd,
u8 count, u64 color_bitmap),
TP_ARGS(netdev, cmd, count, color_bitmap),
TP_STRUCT__entry(
NETDEV_ENTRY
__field(u32, cmd)
__field(u8, count)
__field(u64, color_bitmap)
),
TP_fast_assign(
NETDEV_ASSIGN;
__entry->cmd = cmd;
__entry->count = count;
__entry->color_bitmap = color_bitmap;
),
TP_printk(NETDEV_PR_FMT ", cmd: %x, count: %u, bitmap: %llx",
NETDEV_PR_ARG, __entry->cmd, __entry->count,
__entry->color_bitmap)
);
#endif /* !__RDEV_OPS_TRACE || TRACE_HEADER_MULTI_READ */
#undef TRACE_INCLUDE_PATH