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Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next

Browse Source 
Conflicts:
	net/wireless/reg.c
This commit is contained in:
John W. Linville
2013-11-05 15:49:02 -05:00
parent 01925efdf7 d0a361a5b3
commit 353c78152c
38 changed files with 1302 additions and 453 deletions
Download Patch File Download Diff File Expand all files Collapse all files
Documentation/DocBook/80211.tmpl
+2 -2
View File
@@ -152,8 +152,8 @@
!Finclude/net/cfg80211.h cfg80211_scan_request
!Finclude/net/cfg80211.h cfg80211_scan_done
!Finclude/net/cfg80211.h cfg80211_bss
!Finclude/net/cfg80211.h cfg80211_inform_bss_frame
!Finclude/net/cfg80211.h cfg80211_inform_bss
!Finclude/net/cfg80211.h cfg80211_inform_bss_width_frame
!Finclude/net/cfg80211.h cfg80211_inform_bss_width
!Finclude/net/cfg80211.h cfg80211_unlink_bss
!Finclude/net/cfg80211.h cfg80211_find_ie
!Finclude/net/cfg80211.h ieee80211_bss_get_ie
drivers/net/wireless/mac80211_hwsim.c
+24 -3
View File
@@ -167,6 +167,7 @@ struct hwsim_vif_priv {
u32 magic;
u8 bssid[ETH_ALEN];
bool assoc;
bool bcn_en;
u16 aid;
};
@@ -1170,6 +1171,16 @@ static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
*total_flags = data->rx_filter;
}
static void mac80211_hwsim_bcn_en_iter(void *data, u8 *mac,
struct ieee80211_vif *vif)
{
unsigned int *count = data;
struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
if (vp->bcn_en)
(*count)++;
}
static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct ieee80211_bss_conf *info,
@@ -1180,7 +1191,8 @@ static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
hwsim_check_magic(vif);
wiphy_debug(hw->wiphy, "%s(changed=0x%x)\n", __func__, changed);
wiphy_debug(hw->wiphy, "%s(changed=0x%x vif->addr=%pM)\n",
__func__, changed, vif->addr);
if (changed & BSS_CHANGED_BSSID) {
wiphy_debug(hw->wiphy, "%s: BSSID changed: %pM\n",
@@ -1202,6 +1214,7 @@ static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
if (changed & BSS_CHANGED_BEACON_ENABLED) {
wiphy_debug(hw->wiphy, " BCN EN: %d\n", info->enable_beacon);
vp->bcn_en = info->enable_beacon;
if (data->started &&
!hrtimer_is_queued(&data->beacon_timer.timer) &&
info->enable_beacon) {
@@ -1215,8 +1228,16 @@ static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
tasklet_hrtimer_start(&data->beacon_timer,
ns_to_ktime(until_tbtt * 1000),
HRTIMER_MODE_REL);
} else if (!info->enable_beacon)
tasklet_hrtimer_cancel(&data->beacon_timer);
} else if (!info->enable_beacon) {
unsigned int count = 0;
ieee80211_iterate_active_interfaces(
data->hw, IEEE80211_IFACE_ITER_NORMAL,
mac80211_hwsim_bcn_en_iter, &count);
wiphy_debug(hw->wiphy, " beaconing vifs remaining: %u",
count);
if (count == 0)
tasklet_hrtimer_cancel(&data->beacon_timer);
}
}
if (changed & BSS_CHANGED_ERP_CTS_PROT) {
include/linux/ieee80211.h
+20
View File
@@ -696,6 +696,18 @@ struct ieee80211_sec_chan_offs_ie {
u8 sec_chan_offs;
} __packed;
/**
* struct ieee80211_mesh_chansw_params_ie - mesh channel switch parameters IE
*
* This structure represents the "Mesh Channel Switch Paramters element"
*/
struct ieee80211_mesh_chansw_params_ie {
u8 mesh_ttl;
u8 mesh_flags;
__le16 mesh_reason;
__le16 mesh_pre_value;
} __packed;
/**
* struct ieee80211_wide_bw_chansw_ie - wide bandwidth channel switch IE
*/
@@ -750,6 +762,14 @@ enum mesh_config_capab_flags {
IEEE80211_MESHCONF_CAPAB_POWER_SAVE_LEVEL = 0x40,
};
/**
* mesh channel switch parameters element's flag indicator
*
*/
#define WLAN_EID_CHAN_SWITCH_PARAM_TX_RESTRICT BIT(0)
#define WLAN_EID_CHAN_SWITCH_PARAM_INITIATOR BIT(1)
#define WLAN_EID_CHAN_SWITCH_PARAM_REASON BIT(2)
/**
* struct ieee80211_rann_ie
*
include/net/cfg80211.h
+14
View File
@@ -744,6 +744,10 @@ enum station_parameters_apply_mask {
* @capability: station capability
* @ext_capab: extended capabilities of the station
* @ext_capab_len: number of extended capabilities
* @supported_channels: supported channels in IEEE 802.11 format
* @supported_channels_len: number of supported channels
* @supported_oper_classes: supported oper classes in IEEE 802.11 format
* @supported_oper_classes_len: number of supported operating classes
*/
struct station_parameters {
const u8 *supported_rates;
@@ -763,6 +767,10 @@ struct station_parameters {
u16 capability;
const u8 *ext_capab;
u8 ext_capab_len;
const u8 *supported_channels;
u8 supported_channels_len;
const u8 *supported_oper_classes;
u8 supported_oper_classes_len;
};
/**
@@ -1656,6 +1664,9 @@ struct cfg80211_disassoc_request {
* sets/clears %NL80211_STA_FLAG_AUTHORIZED. If true, the driver is
* required to assume that the port is unauthorized until authorized by
* user space. Otherwise, port is marked authorized by default.
* @userspace_handles_dfs: whether user space controls DFS operation, i.e.
* changes the channel when a radar is detected. This is required
* to operate on DFS channels.
* @basic_rates: bitmap of basic rates to use when creating the IBSS
* @mcast_rate: per-band multicast rate index + 1 (0: disabled)
* @ht_capa: HT Capabilities over-rides. Values set in ht_capa_mask
@@ -1673,6 +1684,7 @@ struct cfg80211_ibss_params {
bool channel_fixed;
bool privacy;
bool control_port;
bool userspace_handles_dfs;
int mcast_rate[IEEE80211_NUM_BANDS];
struct ieee80211_ht_cap ht_capa;
struct ieee80211_ht_cap ht_capa_mask;
@@ -3053,6 +3065,7 @@ struct cfg80211_cached_keys;
* @conn: (private) cfg80211 software SME connection state machine data
* @connect_keys: (private) keys to set after connection is established
* @ibss_fixed: (private) IBSS is using fixed BSSID
* @ibss_dfs_possible: (private) IBSS may change to a DFS channel
* @event_list: (private) list for internal event processing
* @event_lock: (private) lock for event list
*/
@@ -3091,6 +3104,7 @@ struct wireless_dev {
struct ieee80211_channel *channel;
bool ibss_fixed;
bool ibss_dfs_possible;
bool ps;
int ps_timeout;
include/net/mac80211.h
+18
View File
@@ -1503,6 +1503,10 @@ struct ieee80211_tx_control {
* @IEEE80211_HW_TIMING_BEACON_ONLY: Use sync timing from beacon frames
* only, to allow getting TBTT of a DTIM beacon.
*
* @IEEE80211_HW_SUPPORTS_HT_CCK_RATES: Hardware supports mixing HT/CCK rates
* and can cope with CCK rates in an aggregation session (e.g. by not
* using aggregation for such frames.)
*
* @IEEE80211_HW_CHANCTX_STA_CSA: Support 802.11h based channel-switch (CSA)
* for a single active channel while using channel contexts. When support
* is not enabled the default action is to disconnect when getting the
@@ -4567,4 +4571,18 @@ void ieee80211_report_wowlan_wakeup(struct ieee80211_vif *vif,
struct cfg80211_wowlan_wakeup *wakeup,
gfp_t gfp);
/**
* ieee80211_tx_prepare_skb - prepare an 802.11 skb for transmission
* @hw: pointer as obtained from ieee80211_alloc_hw()
* @vif: virtual interface
* @skb: frame to be sent from within the driver
* @band: the band to transmit on
* @sta: optional pointer to get the station to send the frame to
*
* Note: must be called under RCU lock
*/
bool ieee80211_tx_prepare_skb(struct ieee80211_hw *hw,
struct ieee80211_vif *vif, struct sk_buff *skb,
int band, struct ieee80211_sta **sta);
#endif /* MAC80211_H */
include/uapi/linux/nl80211.h
+22 -5
View File
@@ -988,7 +988,7 @@ enum nl80211_commands {
* to query the CRDA to retrieve one regulatory domain. This attribute can
* also be used by userspace to query the kernel for the currently set
* regulatory domain. We chose an alpha2 as that is also used by the
* IEEE-802.11d country information element to identify a country.
* IEEE-802.11 country information element to identify a country.
* Users can also simply ask the wireless core to set regulatory domain
* to a specific alpha2.
* @NL80211_ATTR_REG_RULES: a nested array of regulatory domain regulatory
@@ -1496,6 +1496,18 @@ enum nl80211_commands {
* @NL80211_ATTR_RXMGMT_FLAGS: flags for nl80211_send_mgmt(), u32.
* As specified in the &enum nl80211_rxmgmt_flags.
*
* @NL80211_ATTR_STA_SUPPORTED_CHANNELS: array of supported channels.
*
* @NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES: array of supported
* supported operating classes.
*
* @NL80211_ATTR_HANDLE_DFS: A flag indicating whether user space
* controls DFS operation in IBSS mode. If the flag is included in
* %NL80211_CMD_JOIN_IBSS request, the driver will allow use of DFS
* channels and reports radar events to userspace. Userspace is required
* to react to radar events, e.g. initiate a channel switch or leave the
* IBSS network.
*
* @NL80211_ATTR_MAX: highest attribute number currently defined
* @__NL80211_ATTR_AFTER_LAST: internal use
*/
@@ -1806,6 +1818,12 @@ enum nl80211_attrs {
NL80211_ATTR_RXMGMT_FLAGS,
NL80211_ATTR_STA_SUPPORTED_CHANNELS,
NL80211_ATTR_STA_SUPPORTED_OPER_CLASSES,
NL80211_ATTR_HANDLE_DFS,
/* add attributes here, update the policy in nl80211.c */
__NL80211_ATTR_AFTER_LAST,
@@ -3860,13 +3878,12 @@ enum nl80211_radar_event {
*
* Channel states used by the DFS code.
*
* @IEEE80211_DFS_USABLE: The channel can be used, but channel availability
* @NL80211_DFS_USABLE: The channel can be used, but channel availability
* check (CAC) must be performed before using it for AP or IBSS.
* @IEEE80211_DFS_UNAVAILABLE: A radar has been detected on this channel, it
* @NL80211_DFS_UNAVAILABLE: A radar has been detected on this channel, it
* is therefore marked as not available.
* @IEEE80211_DFS_AVAILABLE: The channel has been CAC checked and is available.
* @NL80211_DFS_AVAILABLE: The channel has been CAC checked and is available.
*/
enum nl80211_dfs_state {
NL80211_DFS_USABLE,
NL80211_DFS_UNAVAILABLE,
net/mac80211/Kconfig
+12
View File
@@ -4,6 +4,7 @@ config MAC80211
select CRYPTO
select CRYPTO_ARC4
select CRYPTO_AES
select CRYPTO_CCM
select CRC32
select AVERAGE
---help---
@@ -258,6 +259,17 @@ config MAC80211_MESH_SYNC_DEBUG
Do not select this option.
config MAC80211_MESH_CSA_DEBUG
bool "Verbose mesh channel switch debugging"
depends on MAC80211_DEBUG_MENU
depends on MAC80211_MESH
---help---
Selecting this option causes mac80211 to print out very verbose mesh
channel switch debugging messages (when mac80211 is taking part in a
mesh network).
Do not select this option.
config MAC80211_MESH_PS_DEBUG
bool "Verbose mesh powersave debugging"
depends on MAC80211_DEBUG_MENU
net/mac80211/aes_ccm.c
+52 -109
View File
@@ -2,6 +2,8 @@
* Copyright 2003-2004, Instant802 Networks, Inc.
* Copyright 2005-2006, Devicescape Software, Inc.
*
* Rewrite: Copyright (C) 2013 Linaro Ltd <ard.biesheuvel@linaro.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
@@ -17,134 +19,75 @@
#include "key.h"
#include "aes_ccm.h"
static void aes_ccm_prepare(struct crypto_cipher *tfm, u8 *scratch, u8 *a)
void ieee80211_aes_ccm_encrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad,
u8 *data, size_t data_len, u8 *mic)
{
int i;
u8 *b_0, *aad, *b, *s_0;
struct scatterlist assoc, pt, ct[2];
struct {
struct aead_request req;
u8 priv[crypto_aead_reqsize(tfm)];
} aead_req;
b_0 = scratch + 3 * AES_BLOCK_SIZE;
aad = scratch + 4 * AES_BLOCK_SIZE;
b = scratch;
s_0 = scratch + AES_BLOCK_SIZE;
memset(&aead_req, 0, sizeof(aead_req));
crypto_cipher_encrypt_one(tfm, b, b_0);
sg_init_one(&pt, data, data_len);
sg_init_one(&assoc, &aad[2], be16_to_cpup((__be16 *)aad));
sg_init_table(ct, 2);
sg_set_buf(&ct[0], data, data_len);
sg_set_buf(&ct[1], mic, IEEE80211_CCMP_MIC_LEN);
/* Extra Authenticate-only data (always two AES blocks) */
for (i = 0; i < AES_BLOCK_SIZE; i++)
aad[i] ^= b[i];
crypto_cipher_encrypt_one(tfm, b, aad);
aead_request_set_tfm(&aead_req.req, tfm);
aead_request_set_assoc(&aead_req.req, &assoc, assoc.length);
aead_request_set_crypt(&aead_req.req, &pt, ct, data_len, b_0);
aad += AES_BLOCK_SIZE;
for (i = 0; i < AES_BLOCK_SIZE; i++)
aad[i] ^= b[i];
crypto_cipher_encrypt_one(tfm, a, aad);
/* Mask out bits from auth-only-b_0 */
b_0[0] &= 0x07;
/* S_0 is used to encrypt T (= MIC) */
b_0[14] = 0;
b_0[15] = 0;
crypto_cipher_encrypt_one(tfm, s_0, b_0);
crypto_aead_encrypt(&aead_req.req);
}
void ieee80211_aes_ccm_encrypt(struct crypto_cipher *tfm, u8 *scratch,
u8 *data, size_t data_len,
u8 *cdata, u8 *mic)
int ieee80211_aes_ccm_decrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad,
u8 *data, size_t data_len, u8 *mic)
{
int i, j, last_len, num_blocks;
u8 *pos, *cpos, *b, *s_0, *e, *b_0;
struct scatterlist assoc, pt, ct[2];
struct {
struct aead_request req;
u8 priv[crypto_aead_reqsize(tfm)];
} aead_req;
b = scratch;
s_0 = scratch + AES_BLOCK_SIZE;
e = scratch + 2 * AES_BLOCK_SIZE;
b_0 = scratch + 3 * AES_BLOCK_SIZE;
memset(&aead_req, 0, sizeof(aead_req));
num_blocks = DIV_ROUND_UP(data_len, AES_BLOCK_SIZE);
last_len = data_len % AES_BLOCK_SIZE;
aes_ccm_prepare(tfm, scratch, b);
sg_init_one(&pt, data, data_len);
sg_init_one(&assoc, &aad[2], be16_to_cpup((__be16 *)aad));
sg_init_table(ct, 2);
sg_set_buf(&ct[0], data, data_len);
sg_set_buf(&ct[1], mic, IEEE80211_CCMP_MIC_LEN);
/* Process payload blocks */
pos = data;
cpos = cdata;
for (j = 1; j <= num_blocks; j++) {
int blen = (j == num_blocks && last_len) ?
last_len : AES_BLOCK_SIZE;
aead_request_set_tfm(&aead_req.req, tfm);
aead_request_set_assoc(&aead_req.req, &assoc, assoc.length);
aead_request_set_crypt(&aead_req.req, ct, &pt,
data_len + IEEE80211_CCMP_MIC_LEN, b_0);
/* Authentication followed by encryption */
for (i = 0; i < blen; i++)
b[i] ^= pos[i];
crypto_cipher_encrypt_one(tfm, b, b);
b_0[14] = (j >> 8) & 0xff;
b_0[15] = j & 0xff;
crypto_cipher_encrypt_one(tfm, e, b_0);
for (i = 0; i < blen; i++)
*cpos++ = *pos++ ^ e[i];
}
for (i = 0; i < IEEE80211_CCMP_MIC_LEN; i++)
mic[i] = b[i] ^ s_0[i];
return crypto_aead_decrypt(&aead_req.req);
}
int ieee80211_aes_ccm_decrypt(struct crypto_cipher *tfm, u8 *scratch,
u8 *cdata, size_t data_len, u8 *mic, u8 *data)
struct crypto_aead *ieee80211_aes_key_setup_encrypt(const u8 key[])
{
int i, j, last_len, num_blocks;
u8 *pos, *cpos, *b, *s_0, *a, *b_0;
struct crypto_aead *tfm;
int err;
b = scratch;
s_0 = scratch + AES_BLOCK_SIZE;
a = scratch + 2 * AES_BLOCK_SIZE;
b_0 = scratch + 3 * AES_BLOCK_SIZE;
tfm = crypto_alloc_aead("ccm(aes)", 0, CRYPTO_ALG_ASYNC);
if (IS_ERR(tfm))
return tfm;
num_blocks = DIV_ROUND_UP(data_len, AES_BLOCK_SIZE);
last_len = data_len % AES_BLOCK_SIZE;
aes_ccm_prepare(tfm, scratch, a);
err = crypto_aead_setkey(tfm, key, WLAN_KEY_LEN_CCMP);
if (!err)
err = crypto_aead_setauthsize(tfm, IEEE80211_CCMP_MIC_LEN);
if (!err)
return tfm;
/* Process payload blocks */
cpos = cdata;
pos = data;
for (j = 1; j <= num_blocks; j++) {
int blen = (j == num_blocks && last_len) ?
last_len : AES_BLOCK_SIZE;
/* Decryption followed by authentication */
b_0[14] = (j >> 8) & 0xff;
b_0[15] = j & 0xff;
crypto_cipher_encrypt_one(tfm, b, b_0);
for (i = 0; i < blen; i++) {
*pos = *cpos++ ^ b[i];
a[i] ^= *pos++;
}
crypto_cipher_encrypt_one(tfm, a, a);
}
for (i = 0; i < IEEE80211_CCMP_MIC_LEN; i++) {
if ((mic[i] ^ s_0[i]) != a[i])
return -1;
}
return 0;
crypto_free_aead(tfm);
return ERR_PTR(err);
}
struct crypto_cipher *ieee80211_aes_key_setup_encrypt(const u8 key[])
void ieee80211_aes_key_free(struct crypto_aead *tfm)
{
struct crypto_cipher *tfm;
tfm = crypto_alloc_cipher("aes", 0, CRYPTO_ALG_ASYNC);
if (!IS_ERR(tfm))
crypto_cipher_setkey(tfm, key, WLAN_KEY_LEN_CCMP);
return tfm;
}
void ieee80211_aes_key_free(struct crypto_cipher *tfm)
{
crypto_free_cipher(tfm);
crypto_free_aead(tfm);
}
net/mac80211/aes_ccm.h
+6 -8
View File
@@ -12,13 +12,11 @@
#include <linux/crypto.h>
struct crypto_cipher *ieee80211_aes_key_setup_encrypt(const u8 key[]);
void ieee80211_aes_ccm_encrypt(struct crypto_cipher *tfm, u8 *scratch,
u8 *data, size_t data_len,
u8 *cdata, u8 *mic);
int ieee80211_aes_ccm_decrypt(struct crypto_cipher *tfm, u8 *scratch,
u8 *cdata, size_t data_len,
u8 *mic, u8 *data);
void ieee80211_aes_key_free(struct crypto_cipher *tfm);
struct crypto_aead *ieee80211_aes_key_setup_encrypt(const u8 key[]);
void ieee80211_aes_ccm_encrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad,
u8 *data, size_t data_len, u8 *mic);
int ieee80211_aes_ccm_decrypt(struct crypto_aead *tfm, u8 *b_0, u8 *aad,
u8 *data, size_t data_len, u8 *mic);
void ieee80211_aes_key_free(struct crypto_aead *tfm);
#endif /* AES_CCM_H */
net/mac80211/cfg.c
+136 -6
View File
@@ -1059,6 +1059,7 @@ static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
/* abort any running channel switch */
sdata->vif.csa_active = false;
cancel_work_sync(&sdata->csa_finalize_work);
cancel_work_sync(&sdata->u.ap.request_smps_work);
/* turn off carrier for this interface and dependent VLANs */
list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
@@ -1342,8 +1343,8 @@ static int sta_apply_parameters(struct ieee80211_local *local,
sta->plink_state = params->plink_state;
ieee80211_mps_sta_status_update(sta);
changed |=
ieee80211_mps_local_status_update(sdata);
changed |= ieee80211_mps_set_sta_local_pm(sta,
NL80211_MESH_POWER_UNKNOWN);
break;
default:
/* nothing */
@@ -1553,6 +1554,20 @@ static int ieee80211_change_station(struct wiphy *wiphy,
mutex_unlock(&local->sta_mtx);
if ((sdata->vif.type == NL80211_IFTYPE_AP ||
sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
sta->known_smps_mode != sta->sdata->bss->req_smps &&
test_sta_flag(sta, WLAN_STA_AUTHORIZED) &&
sta_info_tx_streams(sta) != 1) {
ht_dbg(sta->sdata,
"%pM just authorized and MIMO capable - update SMPS\n",
sta->sta.addr);
ieee80211_send_smps_action(sta->sdata,
sta->sdata->bss->req_smps,
sta->sta.addr,
sta->sdata->vif.bss_conf.bssid);
}
if (sdata->vif.type == NL80211_IFTYPE_STATION &&
params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
ieee80211_recalc_ps(local, -1);
@@ -2337,8 +2352,92 @@ static int ieee80211_testmode_dump(struct wiphy *wiphy,
}
#endif
int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
enum ieee80211_smps_mode smps_mode)
int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
enum ieee80211_smps_mode smps_mode)
{
struct sta_info *sta;
enum ieee80211_smps_mode old_req;
int i;
if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP))
return -EINVAL;
if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
return 0;
old_req = sdata->u.ap.req_smps;
sdata->u.ap.req_smps = smps_mode;
/* AUTOMATIC doesn't mean much for AP - don't allow it */
if (old_req == smps_mode ||
smps_mode == IEEE80211_SMPS_AUTOMATIC)
return 0;
/* If no associated stations, there's no need to do anything */
if (!atomic_read(&sdata->u.ap.num_mcast_sta)) {
sdata->smps_mode = smps_mode;
ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
return 0;
}
ht_dbg(sdata,
"SMSP %d requested in AP mode, sending Action frame to %d stations\n",
smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta));
mutex_lock(&sdata->local->sta_mtx);
for (i = 0; i < STA_HASH_SIZE; i++) {
for (sta = rcu_dereference_protected(sdata->local->sta_hash[i],
lockdep_is_held(&sdata->local->sta_mtx));
sta;
sta = rcu_dereference_protected(sta->hnext,
lockdep_is_held(&sdata->local->sta_mtx))) {
/*
* Only stations associated to our AP and
* associated VLANs
*/
if (sta->sdata->bss != &sdata->u.ap)
continue;
/* This station doesn't support MIMO - skip it */
if (sta_info_tx_streams(sta) == 1)
continue;
/*
* Don't wake up a STA just to send the action frame
* unless we are getting more restrictive.
*/
if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
!ieee80211_smps_is_restrictive(sta->known_smps_mode,
smps_mode)) {
ht_dbg(sdata,
"Won't send SMPS to sleeping STA %pM\n",
sta->sta.addr);
continue;
}
/*
* If the STA is not authorized, wait until it gets
* authorized and the action frame will be sent then.
*/
if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
continue;
ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr);
ieee80211_send_smps_action(sdata, smps_mode,
sta->sta.addr,
sdata->vif.bss_conf.bssid);
}
}
mutex_unlock(&sdata->local->sta_mtx);
sdata->smps_mode = smps_mode;
ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
return 0;
}
int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
enum ieee80211_smps_mode smps_mode)
{
const u8 *ap;
enum ieee80211_smps_mode old_req;
@@ -2346,6 +2445,9 @@ int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
lockdep_assert_held(&sdata->wdev.mtx);
if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
return -EINVAL;
old_req = sdata->u.mgd.req_smps;
sdata->u.mgd.req_smps = smps_mode;
@@ -2402,7 +2504,7 @@ static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
/* no change, but if automatic follow powersave */
sdata_lock(sdata);
__ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
__ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
sdata_unlock(sdata);
if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
@@ -2860,7 +2962,7 @@ void ieee80211_csa_finalize_work(struct work_struct *work)
container_of(work, struct ieee80211_sub_if_data,
csa_finalize_work);
struct ieee80211_local *local = sdata->local;
int err, changed;
int err, changed = 0;
if (!ieee80211_sdata_running(sdata))
return;
@@ -2892,6 +2994,13 @@ void ieee80211_csa_finalize_work(struct work_struct *work)
case NL80211_IFTYPE_ADHOC:
ieee80211_ibss_finish_csa(sdata);
break;
#ifdef CONFIG_MAC80211_MESH
case NL80211_IFTYPE_MESH_POINT:
err = ieee80211_mesh_finish_csa(sdata);
if (err < 0)
return;
break;
#endif
default:
WARN_ON(1);
return;
@@ -2912,6 +3021,7 @@ static int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
struct ieee80211_local *local = sdata->local;
struct ieee80211_chanctx_conf *chanctx_conf;
struct ieee80211_chanctx *chanctx;
struct ieee80211_if_mesh __maybe_unused *ifmsh;
int err, num_chanctx;
if (!list_empty(&local->roc_list) || local->scanning)
@@ -2995,6 +3105,26 @@ static int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
if (err < 0)
return err;
break;
#ifdef CONFIG_MAC80211_MESH
case NL80211_IFTYPE_MESH_POINT:
ifmsh = &sdata->u.mesh;
if (!ifmsh->mesh_id)
return -EINVAL;
if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
return -EINVAL;
/* changes into another band are not supported */
if (sdata->vif.bss_conf.chandef.chan->band !=
params->chandef.chan->band)
return -EINVAL;
err = ieee80211_mesh_csa_beacon(sdata, params, true);
if (err < 0)
return err;
break;
#endif
default:
return -EOPNOTSUPP;
}
net/mac80211/debug.h
+10
View File
@@ -44,6 +44,12 @@
#define MAC80211_MESH_SYNC_DEBUG 0
#endif
#ifdef CONFIG_MAC80211_MESH_CSA_DEBUG
#define MAC80211_MESH_CSA_DEBUG 1
#else
#define MAC80211_MESH_CSA_DEBUG 0
#endif
#ifdef CONFIG_MAC80211_MESH_PS_DEBUG
#define MAC80211_MESH_PS_DEBUG 1
#else
@@ -157,6 +163,10 @@ do { \
_sdata_dbg(MAC80211_MESH_SYNC_DEBUG, \
sdata, fmt, ##__VA_ARGS__)
#define mcsa_dbg(sdata, fmt, ...) \
_sdata_dbg(MAC80211_MESH_CSA_DEBUG, \
sdata, fmt, ##__VA_ARGS__)
#define mps_dbg(sdata, fmt, ...) \
_sdata_dbg(MAC80211_MESH_PS_DEBUG, \
sdata, fmt, ##__VA_ARGS__)
net/mac80211/debugfs_netdev.c
+16 -9
View File
@@ -224,12 +224,15 @@ static int ieee80211_set_smps(struct ieee80211_sub_if_data *sdata,
smps_mode == IEEE80211_SMPS_AUTOMATIC))
return -EINVAL;
/* supported only on managed interfaces for now */
if (sdata->vif.type != NL80211_IFTYPE_STATION)
if (sdata->vif.type != NL80211_IFTYPE_STATION &&
sdata->vif.type != NL80211_IFTYPE_AP)
return -EOPNOTSUPP;
sdata_lock(sdata);
err = __ieee80211_request_smps(sdata, smps_mode);
if (sdata->vif.type == NL80211_IFTYPE_STATION)
err = __ieee80211_request_smps_mgd(sdata, smps_mode);
else
err = __ieee80211_request_smps_ap(sdata, smps_mode);
sdata_unlock(sdata);
return err;
@@ -245,12 +248,15 @@ static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
static ssize_t ieee80211_if_fmt_smps(const struct ieee80211_sub_if_data *sdata,
char *buf, int buflen)
{
if (sdata->vif.type != NL80211_IFTYPE_STATION)
return -EOPNOTSUPP;
return snprintf(buf, buflen, "request: %s\nused: %s\n",
smps_modes[sdata->u.mgd.req_smps],
smps_modes[sdata->smps_mode]);
if (sdata->vif.type == NL80211_IFTYPE_STATION)
return snprintf(buf, buflen, "request: %s\nused: %s\n",
smps_modes[sdata->u.mgd.req_smps],
smps_modes[sdata->smps_mode]);
if (sdata->vif.type == NL80211_IFTYPE_AP)
return snprintf(buf, buflen, "request: %s\nused: %s\n",
smps_modes[sdata->u.ap.req_smps],
smps_modes[sdata->smps_mode]);
return -EINVAL;
}
static ssize_t ieee80211_if_parse_smps(struct ieee80211_sub_if_data *sdata,
@@ -563,6 +569,7 @@ static void add_sta_files(struct ieee80211_sub_if_data *sdata)
static void add_ap_files(struct ieee80211_sub_if_data *sdata)
{
DEBUGFS_ADD(num_mcast_sta);
DEBUGFS_ADD_MODE(smps, 0600);
DEBUGFS_ADD(num_sta_ps);
DEBUGFS_ADD(dtim_count);
DEBUGFS_ADD(num_buffered_multicast);
net/mac80211/ht.c
+31 -10
View File
@@ -448,14 +448,25 @@ int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
return 0;
}
void ieee80211_request_smps_work(struct work_struct *work)
void ieee80211_request_smps_mgd_work(struct work_struct *work)
{
struct ieee80211_sub_if_data *sdata =
container_of(work, struct ieee80211_sub_if_data,
u.mgd.request_smps_work);
sdata_lock(sdata);
__ieee80211_request_smps(sdata, sdata->u.mgd.driver_smps_mode);
__ieee80211_request_smps_mgd(sdata, sdata->u.mgd.driver_smps_mode);
sdata_unlock(sdata);
}
void ieee80211_request_smps_ap_work(struct work_struct *work)
{
struct ieee80211_sub_if_data *sdata =
container_of(work, struct ieee80211_sub_if_data,
u.ap.request_smps_work);
sdata_lock(sdata);
__ieee80211_request_smps_ap(sdata, sdata->u.ap.driver_smps_mode);
sdata_unlock(sdata);
}
@@ -464,19 +475,29 @@ void ieee80211_request_smps(struct ieee80211_vif *vif,
{
struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
if (WARN_ON(vif->type != NL80211_IFTYPE_STATION))
if (WARN_ON_ONCE(vif->type != NL80211_IFTYPE_STATION &&
vif->type != NL80211_IFTYPE_AP))
return;
if (WARN_ON(smps_mode == IEEE80211_SMPS_OFF))
smps_mode = IEEE80211_SMPS_AUTOMATIC;
if (sdata->u.mgd.driver_smps_mode == smps_mode)
return;
sdata->u.mgd.driver_smps_mode = smps_mode;
ieee80211_queue_work(&sdata->local->hw,
&sdata->u.mgd.request_smps_work);
if (vif->type == NL80211_IFTYPE_STATION) {
if (sdata->u.mgd.driver_smps_mode == smps_mode)
return;
sdata->u.mgd.driver_smps_mode = smps_mode;
ieee80211_queue_work(&sdata->local->hw,
&sdata->u.mgd.request_smps_work);
} else {
/* AUTOMATIC is meaningless in AP mode */
if (WARN_ON_ONCE(smps_mode == IEEE80211_SMPS_AUTOMATIC))
return;
if (sdata->u.ap.driver_smps_mode == smps_mode)
return;
sdata->u.ap.driver_smps_mode = smps_mode;
ieee80211_queue_work(&sdata->local->hw,
&sdata->u.ap.request_smps_work);
}
}
/* this might change ... don't want non-open drivers using it */
EXPORT_SYMBOL_GPL(ieee80211_request_smps);
net/mac80211/ibss.c
+51 -65
View File
@@ -229,6 +229,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
struct beacon_data *presp;
enum nl80211_bss_scan_width scan_width;
bool have_higher_than_11mbit;
bool radar_required = false;
int err;
sdata_assert_lock(sdata);
@@ -273,6 +274,23 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
}
chandef.width = NL80211_CHAN_WIDTH_20;
chandef.center_freq1 = chan->center_freq;
/* check again for downgraded chandef */
if (!cfg80211_reg_can_beacon(local->hw.wiphy, &chandef)) {
sdata_info(sdata,
"Failed to join IBSS, beacons forbidden\n");
return;
}
}
err = cfg80211_chandef_dfs_required(sdata->local->hw.wiphy,
&chandef);
if (err > 0) {
if (!ifibss->userspace_handles_dfs) {
sdata_info(sdata,
"Failed to join IBSS, DFS channel without control program\n");
return;
}
radar_required = true;
}
ieee80211_vif_release_channel(sdata);
@@ -297,6 +315,7 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
rcu_assign_pointer(ifibss->presp, presp);
mgmt = (void *)presp->head;
sdata->radar_required = radar_required;
sdata->vif.bss_conf.enable_beacon = true;
sdata->vif.bss_conf.beacon_int = beacon_int;
sdata->vif.bss_conf.basic_rates = basic_rates;
@@ -445,60 +464,6 @@ static void ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
tsf, false);
}
static int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata,
struct cfg80211_csa_settings *csa_settings)
{
struct sk_buff *skb;
struct ieee80211_mgmt *mgmt;
struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
struct ieee80211_local *local = sdata->local;
int freq;
int hdr_len = offsetof(struct ieee80211_mgmt, u.action.u.chan_switch) +
sizeof(mgmt->u.action.u.chan_switch);
u8 *pos;
skb = dev_alloc_skb(local->tx_headroom + hdr_len +
5 + /* channel switch announcement element */
3); /* secondary channel offset element */
if (!skb)
return -1;
skb_reserve(skb, local->tx_headroom);
mgmt = (struct ieee80211_mgmt *)skb_put(skb, hdr_len);
memset(mgmt, 0, hdr_len);
mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
IEEE80211_STYPE_ACTION);
eth_broadcast_addr(mgmt->da);
memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
memcpy(mgmt->bssid, ifibss->bssid, ETH_ALEN);
mgmt->u.action.category = WLAN_CATEGORY_SPECTRUM_MGMT;
mgmt->u.action.u.chan_switch.action_code = WLAN_ACTION_SPCT_CHL_SWITCH;
pos = skb_put(skb, 5);
*pos++ = WLAN_EID_CHANNEL_SWITCH; /* EID */
*pos++ = 3; /* IE length */
*pos++ = csa_settings->block_tx ? 1 : 0; /* CSA mode */
freq = csa_settings->chandef.chan->center_freq;
*pos++ = ieee80211_frequency_to_channel(freq); /* channel */
*pos++ = csa_settings->count; /* count */
if (csa_settings->chandef.width == NL80211_CHAN_WIDTH_40) {
enum nl80211_channel_type ch_type;
skb_put(skb, 3);
*pos++ = WLAN_EID_SECONDARY_CHANNEL_OFFSET; /* EID */
*pos++ = 1; /* IE length */
ch_type = cfg80211_get_chandef_type(&csa_settings->chandef);
if (ch_type == NL80211_CHAN_HT40PLUS)
*pos++ = IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
else
*pos++ = IEEE80211_HT_PARAM_CHA_SEC_BELOW;
}
ieee80211_tx_skb(sdata, skb);
return 0;
}
int ieee80211_ibss_csa_beacon(struct ieee80211_sub_if_data *sdata,
struct cfg80211_csa_settings *csa_settings)
{
@@ -796,19 +761,34 @@ static void ieee80211_csa_connection_drop_work(struct work_struct *work)
ieee80211_queue_work(&sdata->local->hw, &sdata->work);
}
static void ieee80211_ibss_csa_mark_radar(struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
int err;
/* if the current channel is a DFS channel, mark the channel as
* unavailable.
*/
err = cfg80211_chandef_dfs_required(sdata->local->hw.wiphy,
&ifibss->chandef);
if (err > 0)
cfg80211_radar_event(sdata->local->hw.wiphy, &ifibss->chandef,
GFP_ATOMIC);
}
static bool
ieee80211_ibss_process_chanswitch(struct ieee80211_sub_if_data *sdata,
struct ieee802_11_elems *elems,
bool beacon)
{
struct cfg80211_csa_settings params;
struct ieee80211_csa_ie csa_ie;
struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
struct ieee80211_chanctx_conf *chanctx_conf;
struct ieee80211_chanctx *chanctx;
enum nl80211_channel_type ch_type;
int err, num_chanctx;
u32 sta_flags;
u8 mode;
if (sdata->vif.csa_active)
return true;
@@ -831,12 +811,10 @@ ieee80211_ibss_process_chanswitch(struct ieee80211_sub_if_data *sdata,
}
memset(&params, 0, sizeof(params));
memset(&csa_ie, 0, sizeof(csa_ie));
err = ieee80211_parse_ch_switch_ie(sdata, elems, beacon,
ifibss->chandef.chan->band,
sta_flags, ifibss->bssid,
&params.count, &mode,
&params.chandef);
sta_flags, ifibss->bssid, &csa_ie);
/* can't switch to destination channel, fail */
if (err < 0)
goto disconnect;
@@ -845,6 +823,9 @@ ieee80211_ibss_process_chanswitch(struct ieee80211_sub_if_data *sdata,
if (err)
return false;
params.count = csa_ie.count;
params.chandef = csa_ie.chandef;
if (ifibss->chandef.chan->band != params.chandef.chan->band)
goto disconnect;
@@ -880,8 +861,7 @@ ieee80211_ibss_process_chanswitch(struct ieee80211_sub_if_data *sdata,
goto disconnect;
}
if (!cfg80211_chandef_usable(sdata->local->hw.wiphy, &params.chandef,
IEEE80211_CHAN_DISABLED)) {
if (!cfg80211_reg_can_beacon(sdata->local->hw.wiphy, &params.chandef)) {
sdata_info(sdata,
"IBSS %pM switches to unsupported channel (%d MHz, width:%d, CF1/2: %d/%d MHz), disconnecting\n",
ifibss->bssid,
@@ -897,10 +877,11 @@ ieee80211_ibss_process_chanswitch(struct ieee80211_sub_if_data *sdata,
if (err < 0)
goto disconnect;
if (err) {
params.radar_required = true;
/* IBSS-DFS only allowed with a control program */
if (!ifibss->userspace_handles_dfs)
goto disconnect;
/* TODO: IBSS-DFS not (yet) supported, disconnect. */
goto disconnect;
params.radar_required = true;
}
rcu_read_lock();
@@ -931,7 +912,7 @@ ieee80211_ibss_process_chanswitch(struct ieee80211_sub_if_data *sdata,
"received channel switch announcement to go to channel %d MHz\n",
params.chandef.chan->center_freq);
params.block_tx = !!mode;
params.block_tx = !!csa_ie.mode;
ieee80211_ibss_csa_beacon(sdata, &params);
sdata->csa_radar_required = params.radar_required;
@@ -947,12 +928,16 @@ ieee80211_ibss_process_chanswitch(struct ieee80211_sub_if_data *sdata,
ieee80211_bss_info_change_notify(sdata, err);
drv_channel_switch_beacon(sdata, &params.chandef);
ieee80211_ibss_csa_mark_radar(sdata);
return true;
disconnect:
ibss_dbg(sdata, "Can't handle channel switch, disconnect\n");
ieee80211_queue_work(&sdata->local->hw,
&ifibss->csa_connection_drop_work);
ieee80211_ibss_csa_mark_radar(sdata);
return true;
}
@@ -1688,6 +1673,7 @@ int ieee80211_ibss_join(struct ieee80211_sub_if_data *sdata,
sdata->u.ibss.privacy = params->privacy;
sdata->u.ibss.control_port = params->control_port;
sdata->u.ibss.userspace_handles_dfs = params->userspace_handles_dfs;
sdata->u.ibss.basic_rates = params->basic_rates;
/* fix basic_rates if channel does not support these rates */
net/mac80211/ieee80211_i.h
+42 -8
View File
@@ -262,6 +262,10 @@ struct ieee80211_if_ap {
struct ps_data ps;
atomic_t num_mcast_sta; /* number of stations receiving multicast */
enum ieee80211_smps_mode req_smps, /* requested smps mode */
driver_smps_mode; /* smps mode request */
struct work_struct request_smps_work;
};
struct ieee80211_if_wds {
@@ -498,6 +502,7 @@ struct ieee80211_if_ibss {
bool privacy;
bool control_port;
bool userspace_handles_dfs;
u8 bssid[ETH_ALEN] __aligned(2);
u8 ssid[IEEE80211_MAX_SSID_LEN];
@@ -539,6 +544,11 @@ struct ieee80211_mesh_sync_ops {
/* add other framework functions here */
};
struct mesh_csa_settings {
struct rcu_head rcu_head;
struct cfg80211_csa_settings settings;
};
struct ieee80211_if_mesh {
struct timer_list housekeeping_timer;
struct timer_list mesh_path_timer;
@@ -599,6 +609,11 @@ struct ieee80211_if_mesh {
int ps_peers_light_sleep;
int ps_peers_deep_sleep;
struct ps_data ps;
/* Channel Switching Support */
struct mesh_csa_settings __rcu *csa;
bool chsw_init;
u8 chsw_ttl;
u16 pre_value;
};
#ifdef CONFIG_MAC80211_MESH
@@ -1207,6 +1222,14 @@ struct ieee80211_ra_tid {
u16 tid;
};
/* this struct holds the value parsing from channel switch IE */
struct ieee80211_csa_ie {
struct cfg80211_chan_def chandef;
u8 mode;
u8 count;
u8 ttl;
};
/* Parsed Information Elements */
struct ieee802_11_elems {
const u8 *ie_start;
@@ -1243,6 +1266,7 @@ struct ieee802_11_elems {
const struct ieee80211_timeout_interval_ie *timeout_int;
const u8 *opmode_notif;
const struct ieee80211_sec_chan_offs_ie *sec_chan_offs;
const struct ieee80211_mesh_chansw_params_ie *mesh_chansw_params_ie;
/* length of them, respectively */
u8 ssid_len;
@@ -1343,6 +1367,10 @@ void ieee80211_ibss_stop(struct ieee80211_sub_if_data *sdata);
void ieee80211_mesh_work(struct ieee80211_sub_if_data *sdata);
void ieee80211_mesh_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
struct sk_buff *skb);
int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata,
struct cfg80211_csa_settings *csa_settings,
bool csa_action);
int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata);
/* scan/BSS handling */
void ieee80211_scan_work(struct work_struct *work);
@@ -1439,7 +1467,10 @@ void ieee80211_send_delba(struct ieee80211_sub_if_data *sdata,
int ieee80211_send_smps_action(struct ieee80211_sub_if_data *sdata,
enum ieee80211_smps_mode smps, const u8 *da,
const u8 *bssid);
void ieee80211_request_smps_work(struct work_struct *work);
void ieee80211_request_smps_ap_work(struct work_struct *work);
void ieee80211_request_smps_mgd_work(struct work_struct *work);
bool ieee80211_smps_is_restrictive(enum ieee80211_smps_mode smps_mode_old,
enum ieee80211_smps_mode smps_mode_new);
void ___ieee80211_stop_rx_ba_session(struct sta_info *sta, u16 tid,
u16 initiator, u16 reason, bool stop);
@@ -1501,17 +1532,16 @@ void ieee80211_process_measurement_req(struct ieee80211_sub_if_data *sdata,
* %IEEE80211_STA_DISABLE_HT, %IEEE80211_STA_DISABLE_VHT,
* %IEEE80211_STA_DISABLE_40MHZ, %IEEE80211_STA_DISABLE_80P80MHZ,
* %IEEE80211_STA_DISABLE_160MHZ.
* @count: to be filled with the counter until the switch (on success only)
* @bssid: the currently connected bssid (for reporting)
* @mode: to be filled with CSA mode (on success only)
* @new_chandef: to be filled with destination chandef (on success only)
* @csa_ie: parsed 802.11 csa elements on count, mode, chandef and mesh ttl.
All of them will be filled with if success only.
* Return: 0 on success, <0 on error and >0 if there is nothing to parse.
*/
int ieee80211_parse_ch_switch_ie(struct ieee80211_sub_if_data *sdata,
struct ieee802_11_elems *elems, bool beacon,
enum ieee80211_band current_band,
u32 sta_flags, u8 *bssid, u8 *count, u8 *mode,
struct cfg80211_chan_def *new_chandef);
u32 sta_flags, u8 *bssid,
struct ieee80211_csa_ie *csa_ie);
/* Suspend/resume and hw reconfiguration */
int ieee80211_reconfig(struct ieee80211_local *local);
@@ -1657,8 +1687,10 @@ void ieee80211_send_probe_req(struct ieee80211_sub_if_data *sdata, u8 *dst,
u32 ieee80211_sta_get_rates(struct ieee80211_sub_if_data *sdata,
struct ieee802_11_elems *elems,
enum ieee80211_band band, u32 *basic_rates);
int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
enum ieee80211_smps_mode smps_mode);
int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
enum ieee80211_smps_mode smps_mode);
int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
enum ieee80211_smps_mode smps_mode);
void ieee80211_recalc_smps(struct ieee80211_sub_if_data *sdata);
size_t ieee80211_ie_split(const u8 *ies, size_t ielen,
@@ -1714,6 +1746,8 @@ void ieee80211_dfs_cac_timer(unsigned long data);
void ieee80211_dfs_cac_timer_work(struct work_struct *work);
void ieee80211_dfs_cac_cancel(struct ieee80211_local *local);
void ieee80211_dfs_radar_detected_work(struct work_struct *work);
int ieee80211_send_action_csa(struct ieee80211_sub_if_data *sdata,
struct cfg80211_csa_settings *csa_settings);
#ifdef CONFIG_MAC80211_NOINLINE
#define debug_noinline noinline
net/mac80211/iface.c
+3
View File
@@ -1293,7 +1293,10 @@ static void ieee80211_setup_sdata(struct ieee80211_sub_if_data *sdata,
case NL80211_IFTYPE_AP:
skb_queue_head_init(&sdata->u.ap.ps.bc_buf);
INIT_LIST_HEAD(&sdata->u.ap.vlans);
INIT_WORK(&sdata->u.ap.request_smps_work,
ieee80211_request_smps_ap_work);
sdata->vif.bss_conf.bssid = sdata->vif.addr;
sdata->u.ap.req_smps = IEEE80211_SMPS_OFF;
break;
case NL80211_IFTYPE_P2P_CLIENT:
type = NL80211_IFTYPE_STATION;
net/mac80211/key.h
+1 -1
View File
@@ -83,7 +83,7 @@ struct ieee80211_key {
* Management frames.
*/
u8 rx_pn[IEEE80211_NUM_TIDS + 1][IEEE80211_CCMP_PN_LEN];
struct crypto_cipher *tfm;
struct crypto_aead *tfm;
u32 replays; /* dot11RSNAStatsCCMPReplays */
} ccmp;
struct {
net/mac80211/mesh.c
+299 -3
View File
@@ -12,6 +12,7 @@
#include <asm/unaligned.h>
#include "ieee80211_i.h"
#include "mesh.h"
#include "driver-ops.h"
static int mesh_allocated;
static struct kmem_cache *rm_cache;
@@ -610,6 +611,7 @@ ieee80211_mesh_build_beacon(struct ieee80211_if_mesh *ifmsh)
struct sk_buff *skb;
struct ieee80211_mgmt *mgmt;
struct ieee80211_chanctx_conf *chanctx_conf;
struct mesh_csa_settings *csa;
enum ieee80211_band band;
u8 *pos;
struct ieee80211_sub_if_data *sdata;
@@ -624,6 +626,10 @@ ieee80211_mesh_build_beacon(struct ieee80211_if_mesh *ifmsh)
head_len = hdr_len +
2 + /* NULL SSID */
/* Channel Switch Announcement */
2 + sizeof(struct ieee80211_channel_sw_ie) +
/* Mesh Channel Swith Parameters */
2 + sizeof(struct ieee80211_mesh_chansw_params_ie) +
2 + 8 + /* supported rates */
2 + 3; /* DS params */
tail_len = 2 + (IEEE80211_MAX_SUPP_RATES - 8) +
@@ -665,6 +671,38 @@ ieee80211_mesh_build_beacon(struct ieee80211_if_mesh *ifmsh)
*pos++ = WLAN_EID_SSID;
*pos++ = 0x0;
rcu_read_lock();
csa = rcu_dereference(ifmsh->csa);
if (csa) {
__le16 pre_value;
pos = skb_put(skb, 13);
memset(pos, 0, 13);
*pos++ = WLAN_EID_CHANNEL_SWITCH;
*pos++ = 3;
*pos++ = 0x0;
*pos++ = ieee80211_frequency_to_channel(
csa->settings.chandef.chan->center_freq);
sdata->csa_counter_offset_beacon = hdr_len + 6;
*pos++ = csa->settings.count;
*pos++ = WLAN_EID_CHAN_SWITCH_PARAM;
*pos++ = 6;
if (ifmsh->chsw_init) {
*pos++ = ifmsh->mshcfg.dot11MeshTTL;
*pos |= WLAN_EID_CHAN_SWITCH_PARAM_INITIATOR;
} else {
*pos++ = ifmsh->chsw_ttl;
}
*pos++ |= csa->settings.block_tx ?
WLAN_EID_CHAN_SWITCH_PARAM_TX_RESTRICT : 0x00;
put_unaligned_le16(WLAN_REASON_MESH_CHAN, pos);
pos += 2;
pre_value = cpu_to_le16(ifmsh->pre_value);
memcpy(pos, &pre_value, 2);
pos += 2;
}
rcu_read_unlock();
if (ieee80211_add_srates_ie(sdata, skb, true, band) ||
mesh_add_ds_params_ie(sdata, skb))
goto out_free;
@@ -812,6 +850,127 @@ void ieee80211_stop_mesh(struct ieee80211_sub_if_data *sdata)
ieee80211_configure_filter(local);
}
static bool
ieee80211_mesh_process_chnswitch(struct ieee80211_sub_if_data *sdata,
struct ieee802_11_elems *elems, bool beacon)
{
struct cfg80211_csa_settings params;
struct ieee80211_csa_ie csa_ie;
struct ieee80211_chanctx_conf *chanctx_conf;
struct ieee80211_chanctx *chanctx;
struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
int err, num_chanctx;
u32 sta_flags;
if (sdata->vif.csa_active)
return true;
if (!ifmsh->mesh_id)
return false;
sta_flags = IEEE80211_STA_DISABLE_VHT;
switch (sdata->vif.bss_conf.chandef.width) {
case NL80211_CHAN_WIDTH_20_NOHT:
sta_flags |= IEEE80211_STA_DISABLE_HT;
case NL80211_CHAN_WIDTH_20:
sta_flags |= IEEE80211_STA_DISABLE_40MHZ;
break;
default:
break;
}
memset(&params, 0, sizeof(params));
memset(&csa_ie, 0, sizeof(csa_ie));
err = ieee80211_parse_ch_switch_ie(sdata, elems, beacon, band,
sta_flags, sdata->vif.addr,
&csa_ie);
if (err < 0)
return false;
if (err)
return false;
params.chandef = csa_ie.chandef;
params.count = csa_ie.count;
if (sdata->vif.bss_conf.chandef.chan->band !=
params.chandef.chan->band)
return false;
if (!cfg80211_chandef_usable(sdata->local->hw.wiphy, &params.chandef,
IEEE80211_CHAN_DISABLED)) {
sdata_info(sdata,
"mesh STA %pM switches to unsupported channel (%d MHz, width:%d, CF1/2: %d/%d MHz), aborting\n",
sdata->vif.addr,
params.chandef.chan->center_freq,
params.chandef.width,
params.chandef.center_freq1,
params.chandef.center_freq2);
return false;
}
err = cfg80211_chandef_dfs_required(sdata->local->hw.wiphy,
&params.chandef);
if (err < 0)
return false;
if (err) {
params.radar_required = true;
/* TODO: DFS not (yet) supported */
return false;
}
rcu_read_lock();
chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
if (!chanctx_conf)
goto failed_chswitch;
/* don't handle for multi-VIF cases */
chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf);
if (chanctx->refcount > 1)
goto failed_chswitch;
num_chanctx = 0;
list_for_each_entry_rcu(chanctx, &sdata->local->chanctx_list, list)
num_chanctx++;
if (num_chanctx > 1)
goto failed_chswitch;
rcu_read_unlock();
mcsa_dbg(sdata,
"received channel switch announcement to go to channel %d MHz\n",
params.chandef.chan->center_freq);
params.block_tx = csa_ie.mode & WLAN_EID_CHAN_SWITCH_PARAM_TX_RESTRICT;
if (beacon)
ifmsh->chsw_ttl = csa_ie.ttl - 1;
else
ifmsh->chsw_ttl = 0;
if (ifmsh->chsw_ttl > 0)
if (ieee80211_mesh_csa_beacon(sdata, &params, false) < 0)
return false;
sdata->csa_radar_required = params.radar_required;
if (params.block_tx)
ieee80211_stop_queues_by_reason(&sdata->local->hw,
IEEE80211_MAX_QUEUE_MAP,
IEEE80211_QUEUE_STOP_REASON_CSA);
sdata->local->csa_chandef = params.chandef;
sdata->vif.csa_active = true;
ieee80211_bss_info_change_notify(sdata, err);
drv_channel_switch_beacon(sdata, &params.chandef);
return true;
failed_chswitch:
rcu_read_unlock();
return false;
}
static void
ieee80211_mesh_rx_probe_req(struct ieee80211_sub_if_data *sdata,
struct ieee80211_mgmt *mgmt, size_t len)
@@ -918,6 +1077,142 @@ static void ieee80211_mesh_rx_bcn_presp(struct ieee80211_sub_if_data *sdata,
if (ifmsh->sync_ops)
ifmsh->sync_ops->rx_bcn_presp(sdata,
stype, mgmt, &elems, rx_status);
if (!ifmsh->chsw_init)
ieee80211_mesh_process_chnswitch(sdata, &elems, true);
}
int ieee80211_mesh_finish_csa(struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
struct mesh_csa_settings *tmp_csa_settings;
int ret = 0;
/* Reset the TTL value and Initiator flag */
ifmsh->chsw_init = false;
ifmsh->chsw_ttl = 0;
/* Remove the CSA and MCSP elements from the beacon */
tmp_csa_settings = rcu_dereference(ifmsh->csa);
rcu_assign_pointer(ifmsh->csa, NULL);
kfree_rcu(tmp_csa_settings, rcu_head);
ret = ieee80211_mesh_rebuild_beacon(sdata);
if (ret)
return -EINVAL;
ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON);
mcsa_dbg(sdata, "complete switching to center freq %d MHz",
sdata->vif.bss_conf.chandef.chan->center_freq);
return 0;
}
int ieee80211_mesh_csa_beacon(struct ieee80211_sub_if_data *sdata,
struct cfg80211_csa_settings *csa_settings,
bool csa_action)
{
struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
struct mesh_csa_settings *tmp_csa_settings;
int ret = 0;
tmp_csa_settings = kmalloc(sizeof(*tmp_csa_settings),
GFP_ATOMIC);
if (!tmp_csa_settings)
return -ENOMEM;
memcpy(&tmp_csa_settings->settings, csa_settings,
sizeof(struct cfg80211_csa_settings));
rcu_assign_pointer(ifmsh->csa, tmp_csa_settings);
ret = ieee80211_mesh_rebuild_beacon(sdata);
if (ret) {
tmp_csa_settings = rcu_dereference(ifmsh->csa);
rcu_assign_pointer(ifmsh->csa, NULL);
kfree_rcu(tmp_csa_settings, rcu_head);
return ret;
}
ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON);
if (csa_action)
ieee80211_send_action_csa(sdata, csa_settings);
return 0;
}
static int mesh_fwd_csa_frame(struct ieee80211_sub_if_data *sdata,
struct ieee80211_mgmt *mgmt, size_t len)
{
struct ieee80211_mgmt *mgmt_fwd;
struct sk_buff *skb;
struct ieee80211_local *local = sdata->local;
u8 *pos = mgmt->u.action.u.chan_switch.variable;
size_t offset_ttl;
skb = dev_alloc_skb(local->tx_headroom + len);
if (!skb)
return -ENOMEM;
skb_reserve(skb, local->tx_headroom);
mgmt_fwd = (struct ieee80211_mgmt *) skb_put(skb, len);
/* offset_ttl is based on whether the secondary channel
* offset is available or not. Substract 1 from the mesh TTL
* and disable the initiator flag before forwarding.
*/
offset_ttl = (len < 42) ? 7 : 10;
*(pos + offset_ttl) -= 1;
*(pos + offset_ttl + 1) &= ~WLAN_EID_CHAN_SWITCH_PARAM_INITIATOR;
sdata->u.mesh.chsw_ttl = *(pos + offset_ttl);
memcpy(mgmt_fwd, mgmt, len);
eth_broadcast_addr(mgmt_fwd->da);
memcpy(mgmt_fwd->sa, sdata->vif.addr, ETH_ALEN);
memcpy(mgmt_fwd->bssid, sdata->vif.addr, ETH_ALEN);
ieee80211_tx_skb(sdata, skb);
return 0;
}
static void mesh_rx_csa_frame(struct ieee80211_sub_if_data *sdata,
struct ieee80211_mgmt *mgmt, size_t len)
{
struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
struct ieee802_11_elems elems;
u16 pre_value;
bool fwd_csa = true;
size_t baselen;
u8 *pos, ttl;
if (mgmt->u.action.u.measurement.action_code !=
WLAN_ACTION_SPCT_CHL_SWITCH)
return;
pos = mgmt->u.action.u.chan_switch.variable;
baselen = offsetof(struct ieee80211_mgmt,
u.action.u.chan_switch.variable);
ieee802_11_parse_elems(pos, len - baselen, false, &elems);
ttl = elems.mesh_chansw_params_ie->mesh_ttl;
if (!--ttl)
fwd_csa = false;
pre_value = le16_to_cpu(elems.mesh_chansw_params_ie->mesh_pre_value);
if (ifmsh->pre_value >= pre_value)
return;
ifmsh->pre_value = pre_value;
if (!ieee80211_mesh_process_chnswitch(sdata, &elems, false)) {
mcsa_dbg(sdata, "Failed to process CSA action frame");
return;
}
/* forward or re-broadcast the CSA frame */
if (fwd_csa) {
if (mesh_fwd_csa_frame(sdata, mgmt, len) < 0)
mcsa_dbg(sdata, "Failed to forward the CSA frame");
}
}
static void ieee80211_mesh_rx_mgmt_action(struct ieee80211_sub_if_data *sdata,
@@ -939,6 +1234,9 @@ static void ieee80211_mesh_rx_mgmt_action(struct ieee80211_sub_if_data *sdata,
if (mesh_action_is_path_sel(mgmt))
mesh_rx_path_sel_frame(sdata, mgmt, len);
break;
case WLAN_CATEGORY_SPECTRUM_MGMT:
mesh_rx_csa_frame(sdata, mgmt, len);
break;
}
}
@@ -1056,13 +1354,11 @@ void ieee80211_mesh_init_sdata(struct ieee80211_sub_if_data *sdata)
(unsigned long) sdata);
ifmsh->accepting_plinks = true;
ifmsh->preq_id = 0;
ifmsh->sn = 0;
ifmsh->num_gates = 0;
atomic_set(&ifmsh->mpaths, 0);
mesh_rmc_init(sdata);
ifmsh->last_preq = jiffies;
ifmsh->next_perr = jiffies;
ifmsh->chsw_init = false;
/* Allocate all mesh structures when creating the first mesh interface. */
if (!mesh_allocated)
ieee80211s_init();
net/mac80211/mesh_plink.c
+2 -1
View File
@@ -222,7 +222,8 @@ static u32 __mesh_plink_deactivate(struct sta_info *sta)
mesh_path_flush_by_nexthop(sta);
ieee80211_mps_sta_status_update(sta);
changed |= ieee80211_mps_local_status_update(sdata);
changed |= ieee80211_mps_set_sta_local_pm(sta,
NL80211_MESH_POWER_UNKNOWN);
return changed;
}
net/mac80211/mesh_ps.c
+18 -15
View File
@@ -152,6 +152,9 @@ u32 ieee80211_mps_set_sta_local_pm(struct sta_info *sta,
{
struct ieee80211_sub_if_data *sdata = sta->sdata;
if (sta->local_pm == pm)
return 0;
mps_dbg(sdata, "local STA operates in mode %d with %pM\n",
pm, sta->sta.addr);
@@ -245,6 +248,14 @@ void ieee80211_mps_sta_status_update(struct sta_info *sta)
do_buffer = (pm != NL80211_MESH_POWER_ACTIVE);
/* clear the MPSP flags for non-peers or active STA */
if (sta->plink_state != NL80211_PLINK_ESTAB) {
clear_sta_flag(sta, WLAN_STA_MPSP_OWNER);
clear_sta_flag(sta, WLAN_STA_MPSP_RECIPIENT);
} else if (!do_buffer) {
clear_sta_flag(sta, WLAN_STA_MPSP_OWNER);
}
/* Don't let the same PS state be set twice */
if (test_sta_flag(sta, WLAN_STA_PS_STA) == do_buffer)
return;
@@ -257,14 +268,6 @@ void ieee80211_mps_sta_status_update(struct sta_info *sta)
} else {
ieee80211_sta_ps_deliver_wakeup(sta);
}
/* clear the MPSP flags for non-peers or active STA */
if (sta->plink_state != NL80211_PLINK_ESTAB) {
clear_sta_flag(sta, WLAN_STA_MPSP_OWNER);
clear_sta_flag(sta, WLAN_STA_MPSP_RECIPIENT);
} else if (!do_buffer) {
clear_sta_flag(sta, WLAN_STA_MPSP_OWNER);
}
}
static void mps_set_sta_peer_pm(struct sta_info *sta,
@@ -444,8 +447,7 @@ static void mpsp_qos_null_append(struct sta_info *sta,
*/
static void mps_frame_deliver(struct sta_info *sta, int n_frames)
{
struct ieee80211_sub_if_data *sdata = sta->sdata;
struct ieee80211_local *local = sdata->local;
struct ieee80211_local *local = sta->sdata->local;
int ac;
struct sk_buff_head frames;
struct sk_buff *skb;
@@ -558,10 +560,10 @@ void ieee80211_mpsp_trigger_process(u8 *qc, struct sta_info *sta,
}
/**
* ieee80211_mps_frame_release - release buffered frames in response to beacon
* ieee80211_mps_frame_release - release frames buffered due to mesh power save
*
* @sta: mesh STA
* @elems: beacon IEs
* @elems: IEs of beacon or probe response
*
* For peers if we have individually-addressed frames buffered or the peer
* indicates buffered frames, send a corresponding MPSP trigger frame. Since
@@ -588,9 +590,10 @@ void ieee80211_mps_frame_release(struct sta_info *sta,
(!elems->awake_window || !le16_to_cpu(*elems->awake_window)))
return;
for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
buffer_local += skb_queue_len(&sta->ps_tx_buf[ac]) +
skb_queue_len(&sta->tx_filtered[ac]);
if (!test_sta_flag(sta, WLAN_STA_MPSP_OWNER))
for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
buffer_local += skb_queue_len(&sta->ps_tx_buf[ac]) +
skb_queue_len(&sta->tx_filtered[ac]);
if (!has_buffered && !buffer_local)
return;

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