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

Browse source
This commit is contained in:
John W. Linville 2013-08-16 14:24:51 -04:00
commit d074666366
28 changed files with 707 additions and 372 deletions
Download patch file Download diff file Expand all files Collapse all files

15
net/mac80211/cfg.c
View file

@ -2302,14 +2302,25 @@ static void ieee80211_rfkill_poll(struct wiphy *wiphy)
}
#ifdef CONFIG_NL80211_TESTMODE
static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
static int ieee80211_testmode_cmd(struct wiphy *wiphy,
struct wireless_dev *wdev,
void *data, int len)
{
struct ieee80211_local *local = wiphy_priv(wiphy);
struct ieee80211_vif *vif = NULL;
if (!local->ops->testmode_cmd)
return -EOPNOTSUPP;
return local->ops->testmode_cmd(&local->hw, data, len);
if (wdev) {
struct ieee80211_sub_if_data *sdata;
sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
vif = &sdata->vif;
}
return local->ops->testmode_cmd(&local->hw, vif, data, len);
}
static int ieee80211_testmode_dump(struct wiphy *wiphy,

322
net/mac80211/ibss.c
View file

@ -34,6 +34,170 @@
#define IEEE80211_IBSS_MAX_STA_ENTRIES 128
static struct beacon_data *
ieee80211_ibss_build_presp(struct ieee80211_sub_if_data *sdata,
const int beacon_int, const u32 basic_rates,
const u16 capability, u64 tsf,
struct cfg80211_chan_def *chandef,
bool *have_higher_than_11mbit)
{
struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
struct ieee80211_local *local = sdata->local;
int rates_n = 0, i, ri;
struct ieee80211_mgmt *mgmt;
u8 *pos;
struct ieee80211_supported_band *sband;
u32 rate_flags, rates = 0, rates_added = 0;
struct beacon_data *presp;
int frame_len;
int shift;
/* Build IBSS probe response */
frame_len = sizeof(struct ieee80211_hdr_3addr) +
12 /* struct ieee80211_mgmt.u.beacon */ +
2 + IEEE80211_MAX_SSID_LEN /* max SSID */ +
2 + 8 /* max Supported Rates */ +
3 /* max DS params */ +
4 /* IBSS params */ +
2 + (IEEE80211_MAX_SUPP_RATES - 8) +
2 + sizeof(struct ieee80211_ht_cap) +
2 + sizeof(struct ieee80211_ht_operation) +
ifibss->ie_len;
presp = kzalloc(sizeof(*presp) + frame_len, GFP_KERNEL);
if (!presp)
return NULL;
presp->head = (void *)(presp + 1);
mgmt = (void *) presp->head;
mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
IEEE80211_STYPE_PROBE_RESP);
eth_broadcast_addr(mgmt->da);
memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
memcpy(mgmt->bssid, ifibss->bssid, ETH_ALEN);
mgmt->u.beacon.beacon_int = cpu_to_le16(beacon_int);
mgmt->u.beacon.timestamp = cpu_to_le64(tsf);
mgmt->u.beacon.capab_info = cpu_to_le16(capability);
pos = (u8 *)mgmt + offsetof(struct ieee80211_mgmt, u.beacon.variable);
*pos++ = WLAN_EID_SSID;
*pos++ = ifibss->ssid_len;
memcpy(pos, ifibss->ssid, ifibss->ssid_len);
pos += ifibss->ssid_len;
sband = local->hw.wiphy->bands[chandef->chan->band];
rate_flags = ieee80211_chandef_rate_flags(chandef);
shift = ieee80211_chandef_get_shift(chandef);
rates_n = 0;
if (have_higher_than_11mbit)
*have_higher_than_11mbit = false;
for (i = 0; i < sband->n_bitrates; i++) {
if ((rate_flags & sband->bitrates[i].flags) != rate_flags)
continue;
if (sband->bitrates[i].bitrate > 110 &&
have_higher_than_11mbit)
*have_higher_than_11mbit = true;
rates |= BIT(i);
rates_n++;
}
*pos++ = WLAN_EID_SUPP_RATES;
*pos++ = min_t(int, 8, rates_n);
for (ri = 0; ri < sband->n_bitrates; ri++) {
int rate = DIV_ROUND_UP(sband->bitrates[ri].bitrate,
5 * (1 << shift));
u8 basic = 0;
if (!(rates & BIT(ri)))
continue;
if (basic_rates & BIT(ri))
basic = 0x80;
*pos++ = basic | (u8) rate;
if (++rates_added == 8) {
ri++; /* continue at next rate for EXT_SUPP_RATES */
break;
}
}
if (sband->band == IEEE80211_BAND_2GHZ) {
*pos++ = WLAN_EID_DS_PARAMS;
*pos++ = 1;
*pos++ = ieee80211_frequency_to_channel(
chandef->chan->center_freq);
}
*pos++ = WLAN_EID_IBSS_PARAMS;
*pos++ = 2;
/* FIX: set ATIM window based on scan results */
*pos++ = 0;
*pos++ = 0;
/* put the remaining rates in WLAN_EID_EXT_SUPP_RATES */
if (rates_n > 8) {
*pos++ = WLAN_EID_EXT_SUPP_RATES;
*pos++ = rates_n - 8;
for (; ri < sband->n_bitrates; ri++) {
int rate = DIV_ROUND_UP(sband->bitrates[ri].bitrate,
5 * (1 << shift));
u8 basic = 0;
if (!(rates & BIT(ri)))
continue;
if (basic_rates & BIT(ri))
basic = 0x80;
*pos++ = basic | (u8) rate;
}
}
if (ifibss->ie_len) {
memcpy(pos, ifibss->ie, ifibss->ie_len);
pos += ifibss->ie_len;
}
/* add HT capability and information IEs */
if (chandef->width != NL80211_CHAN_WIDTH_20_NOHT &&
chandef->width != NL80211_CHAN_WIDTH_5 &&
chandef->width != NL80211_CHAN_WIDTH_10 &&
sband->ht_cap.ht_supported) {
struct ieee80211_sta_ht_cap ht_cap;
memcpy(&ht_cap, &sband->ht_cap, sizeof(ht_cap));
ieee80211_apply_htcap_overrides(sdata, &ht_cap);
pos = ieee80211_ie_build_ht_cap(pos, &ht_cap, ht_cap.cap);
/*
* Note: According to 802.11n-2009 9.13.3.1, HT Protection
* field and RIFS Mode are reserved in IBSS mode, therefore
* keep them at 0
*/
pos = ieee80211_ie_build_ht_oper(pos, &sband->ht_cap,
chandef, 0);
}
if (local->hw.queues >= IEEE80211_NUM_ACS) {
*pos++ = WLAN_EID_VENDOR_SPECIFIC;
*pos++ = 7; /* len */
*pos++ = 0x00; /* Microsoft OUI 00:50:F2 */
*pos++ = 0x50;
*pos++ = 0xf2;
*pos++ = 2; /* WME */
*pos++ = 0; /* WME info */
*pos++ = 1; /* WME ver */
*pos++ = 0; /* U-APSD no in use */
}
presp->head_len = pos - presp->head;
if (WARN_ON(presp->head_len > frame_len))
goto error;
return presp;
error:
kfree(presp);
return NULL;
}
static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
const u8 *bssid, const int beacon_int,
@ -44,18 +208,14 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
{
struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
struct ieee80211_local *local = sdata->local;
int rates_n = 0, i, ri;
struct ieee80211_mgmt *mgmt;
u8 *pos;
struct ieee80211_supported_band *sband;
struct ieee80211_mgmt *mgmt;
struct cfg80211_bss *bss;
u32 bss_change, rate_flags, rates = 0, rates_added = 0;
u32 bss_change;
struct cfg80211_chan_def chandef;
enum nl80211_bss_scan_width scan_width;
bool have_higher_than_11mbit = false;
struct beacon_data *presp;
int frame_len;
int shift;
enum nl80211_bss_scan_width scan_width;
bool have_higher_than_11mbit;
sdata_assert_lock(sdata);
@ -110,142 +270,15 @@ static void __ieee80211_sta_join_ibss(struct ieee80211_sub_if_data *sdata,
memcpy(ifibss->bssid, bssid, ETH_ALEN);
sband = local->hw.wiphy->bands[chan->band];
shift = ieee80211_vif_get_shift(&sdata->vif);
/* Build IBSS probe response */
frame_len = sizeof(struct ieee80211_hdr_3addr) +
12 /* struct ieee80211_mgmt.u.beacon */ +
2 + IEEE80211_MAX_SSID_LEN /* max SSID */ +
2 + 8 /* max Supported Rates */ +
3 /* max DS params */ +
4 /* IBSS params */ +
2 + (IEEE80211_MAX_SUPP_RATES - 8) +
2 + sizeof(struct ieee80211_ht_cap) +
2 + sizeof(struct ieee80211_ht_operation) +
ifibss->ie_len;
presp = kzalloc(sizeof(*presp) + frame_len, GFP_KERNEL);
presp = ieee80211_ibss_build_presp(sdata, beacon_int, basic_rates,
capability, tsf, &chandef,
&have_higher_than_11mbit);
if (!presp)
return;
presp->head = (void *)(presp + 1);
mgmt = (void *) presp->head;
mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
IEEE80211_STYPE_PROBE_RESP);
eth_broadcast_addr(mgmt->da);
memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
memcpy(mgmt->bssid, ifibss->bssid, ETH_ALEN);
mgmt->u.beacon.beacon_int = cpu_to_le16(beacon_int);
mgmt->u.beacon.timestamp = cpu_to_le64(tsf);
mgmt->u.beacon.capab_info = cpu_to_le16(capability);
pos = (u8 *)mgmt + offsetof(struct ieee80211_mgmt, u.beacon.variable);
*pos++ = WLAN_EID_SSID;
*pos++ = ifibss->ssid_len;
memcpy(pos, ifibss->ssid, ifibss->ssid_len);
pos += ifibss->ssid_len;
rate_flags = ieee80211_chandef_rate_flags(&chandef);
for (i = 0; i < sband->n_bitrates; i++) {
if ((rate_flags & sband->bitrates[i].flags) != rate_flags)
continue;
if (sband->bitrates[i].bitrate > 110)
have_higher_than_11mbit = true;
rates |= BIT(i);
rates_n++;
}
*pos++ = WLAN_EID_SUPP_RATES;
*pos++ = min_t(int, 8, rates_n);
for (ri = 0; ri < sband->n_bitrates; ri++) {
int rate = DIV_ROUND_UP(sband->bitrates[ri].bitrate,
5 * (1 << shift));
u8 basic = 0;
if (!(rates & BIT(ri)))
continue;
if (basic_rates & BIT(ri))
basic = 0x80;
*pos++ = basic | (u8) rate;
if (++rates_added == 8) {
ri++; /* continue at next rate for EXT_SUPP_RATES */
break;
}
}
if (sband->band == IEEE80211_BAND_2GHZ) {
*pos++ = WLAN_EID_DS_PARAMS;
*pos++ = 1;
*pos++ = ieee80211_frequency_to_channel(chan->center_freq);
}
*pos++ = WLAN_EID_IBSS_PARAMS;
*pos++ = 2;
/* FIX: set ATIM window based on scan results */
*pos++ = 0;
*pos++ = 0;
/* put the remaining rates in WLAN_EID_EXT_SUPP_RATES */
if (rates_n > 8) {
*pos++ = WLAN_EID_EXT_SUPP_RATES;
*pos++ = rates_n - 8;
for (; ri < sband->n_bitrates; ri++) {
int rate = DIV_ROUND_UP(sband->bitrates[ri].bitrate,
5 * (1 << shift));
u8 basic = 0;
if (!(rates & BIT(ri)))
continue;
if (basic_rates & BIT(ri))
basic = 0x80;
*pos++ = basic | (u8) rate;
}
}
if (ifibss->ie_len) {
memcpy(pos, ifibss->ie, ifibss->ie_len);
pos += ifibss->ie_len;
}
/* add HT capability and information IEs */
if (chandef.width != NL80211_CHAN_WIDTH_20_NOHT &&
chandef.width != NL80211_CHAN_WIDTH_5 &&
chandef.width != NL80211_CHAN_WIDTH_10 &&
sband->ht_cap.ht_supported) {
struct ieee80211_sta_ht_cap ht_cap;
memcpy(&ht_cap, &sband->ht_cap, sizeof(ht_cap));
ieee80211_apply_htcap_overrides(sdata, &ht_cap);
pos = ieee80211_ie_build_ht_cap(pos, &ht_cap, ht_cap.cap);
/*
* Note: According to 802.11n-2009 9.13.3.1, HT Protection
* field and RIFS Mode are reserved in IBSS mode, therefore
* keep them at 0
*/
pos = ieee80211_ie_build_ht_oper(pos, &sband->ht_cap,
&chandef, 0);
}
if (local->hw.queues >= IEEE80211_NUM_ACS) {
*pos++ = WLAN_EID_VENDOR_SPECIFIC;
*pos++ = 7; /* len */
*pos++ = 0x00; /* Microsoft OUI 00:50:F2 */
*pos++ = 0x50;
*pos++ = 0xf2;
*pos++ = 2; /* WME */
*pos++ = 0; /* WME info */
*pos++ = 1; /* WME ver */
*pos++ = 0; /* U-APSD no in use */
}
presp->head_len = pos - presp->head;
if (WARN_ON(presp->head_len > frame_len))
return;
rcu_assign_pointer(ifibss->presp, presp);
mgmt = (void *)presp->head;
sdata->vif.bss_conf.enable_beacon = true;
sdata->vif.bss_conf.beacon_int = beacon_int;
@ -891,6 +924,17 @@ static void ieee80211_sta_find_ibss(struct ieee80211_sub_if_data *sdata)
return;
}
/* if a fixed bssid and a fixed freq have been provided create the IBSS
* directly and do not waste time scanning
*/
if (ifibss->fixed_bssid && ifibss->fixed_channel) {
sdata_info(sdata, "Created IBSS using preconfigured BSSID %pM\n",
bssid);
ieee80211_sta_create_ibss(sdata);
return;
}
ibss_dbg(sdata, "sta_find_ibss: did not try to join ibss\n");
/* Selected IBSS not found in current scan results - try to scan */

3
net/mac80211/ieee80211_i.h
View file

@ -53,9 +53,6 @@ struct ieee80211_local;
* increased memory use (about 2 kB of RAM per entry). */
#define IEEE80211_FRAGMENT_MAX 4
#define TU_TO_JIFFIES(x) (usecs_to_jiffies((x) * 1024))
#define TU_TO_EXP_TIME(x) (jiffies + TU_TO_JIFFIES(x))
/* power level hasn't been configured (or set to automatic) */
#define IEEE80211_UNSET_POWER_LEVEL INT_MIN

154
net/mac80211/key.c
View file

@ -93,6 +93,9 @@ static int ieee80211_key_enable_hw_accel(struct ieee80211_key *key)
might_sleep();
if (key->flags & KEY_FLAG_TAINTED)
return -EINVAL;
if (!key->local->ops->set_key)
goto out_unsupported;
@ -455,6 +458,7 @@ int ieee80211_key_link(struct ieee80211_key *key,
struct ieee80211_sub_if_data *sdata,
struct sta_info *sta)
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_key *old_key;
int idx, ret;
bool pairwise;
@ -484,10 +488,13 @@ int ieee80211_key_link(struct ieee80211_key *key,
ieee80211_debugfs_key_add(key);
ret = ieee80211_key_enable_hw_accel(key);
if (ret)
ieee80211_key_free(key, true);
if (!local->wowlan) {
ret = ieee80211_key_enable_hw_accel(key);
if (ret)
ieee80211_key_free(key, true);
} else {
ret = 0;
}
mutex_unlock(&sdata->local->key_mtx);
@ -540,7 +547,7 @@ void ieee80211_iter_keys(struct ieee80211_hw *hw,
void *iter_data)
{
struct ieee80211_local *local = hw_to_local(hw);
struct ieee80211_key *key;
struct ieee80211_key *key, *tmp;
struct ieee80211_sub_if_data *sdata;
ASSERT_RTNL();
@ -548,13 +555,14 @@ void ieee80211_iter_keys(struct ieee80211_hw *hw,
mutex_lock(&local->key_mtx);
if (vif) {
sdata = vif_to_sdata(vif);
list_for_each_entry(key, &sdata->key_list, list)
list_for_each_entry_safe(key, tmp, &sdata->key_list, list)
iter(hw, &sdata->vif,
key->sta ? &key->sta->sta : NULL,
&key->conf, iter_data);
} else {
list_for_each_entry(sdata, &local->interfaces, list)
list_for_each_entry(key, &sdata->key_list, list)
list_for_each_entry_safe(key, tmp,
&sdata->key_list, list)
iter(hw, &sdata->vif,
key->sta ? &key->sta->sta : NULL,
&key->conf, iter_data);
@ -751,3 +759,135 @@ void ieee80211_get_key_rx_seq(struct ieee80211_key_conf *keyconf,
}
}
EXPORT_SYMBOL(ieee80211_get_key_rx_seq);
void ieee80211_set_key_tx_seq(struct ieee80211_key_conf *keyconf,
struct ieee80211_key_seq *seq)
{
struct ieee80211_key *key;
u64 pn64;
key = container_of(keyconf, struct ieee80211_key, conf);
switch (key->conf.cipher) {
case WLAN_CIPHER_SUITE_TKIP:
key->u.tkip.tx.iv32 = seq->tkip.iv32;
key->u.tkip.tx.iv16 = seq->tkip.iv16;
break;
case WLAN_CIPHER_SUITE_CCMP:
pn64 = (u64)seq->ccmp.pn[5] |
((u64)seq->ccmp.pn[4] << 8) |
((u64)seq->ccmp.pn[3] << 16) |
((u64)seq->ccmp.pn[2] << 24) |
((u64)seq->ccmp.pn[1] << 32) |
((u64)seq->ccmp.pn[0] << 40);
atomic64_set(&key->u.ccmp.tx_pn, pn64);
break;
case WLAN_CIPHER_SUITE_AES_CMAC:
pn64 = (u64)seq->aes_cmac.pn[5] |
((u64)seq->aes_cmac.pn[4] << 8) |
((u64)seq->aes_cmac.pn[3] << 16) |
((u64)seq->aes_cmac.pn[2] << 24) |
((u64)seq->aes_cmac.pn[1] << 32) |
((u64)seq->aes_cmac.pn[0] << 40);
atomic64_set(&key->u.aes_cmac.tx_pn, pn64);
break;
default:
WARN_ON(1);
break;
}
}
EXPORT_SYMBOL_GPL(ieee80211_set_key_tx_seq);
void ieee80211_set_key_rx_seq(struct ieee80211_key_conf *keyconf,
int tid, struct ieee80211_key_seq *seq)
{
struct ieee80211_key *key;
u8 *pn;
key = container_of(keyconf, struct ieee80211_key, conf);
switch (key->conf.cipher) {
case WLAN_CIPHER_SUITE_TKIP:
if (WARN_ON(tid < 0 || tid >= IEEE80211_NUM_TIDS))
return;
key->u.tkip.rx[tid].iv32 = seq->tkip.iv32;
key->u.tkip.rx[tid].iv16 = seq->tkip.iv16;
break;
case WLAN_CIPHER_SUITE_CCMP:
if (WARN_ON(tid < -1 || tid >= IEEE80211_NUM_TIDS))
return;
if (tid < 0)
pn = key->u.ccmp.rx_pn[IEEE80211_NUM_TIDS];
else
pn = key->u.ccmp.rx_pn[tid];
memcpy(pn, seq->ccmp.pn, IEEE80211_CCMP_PN_LEN);
break;
case WLAN_CIPHER_SUITE_AES_CMAC:
if (WARN_ON(tid != 0))
return;
pn = key->u.aes_cmac.rx_pn;
memcpy(pn, seq->aes_cmac.pn, IEEE80211_CMAC_PN_LEN);
break;
default:
WARN_ON(1);
break;
}
}
EXPORT_SYMBOL_GPL(ieee80211_set_key_rx_seq);
void ieee80211_remove_key(struct ieee80211_key_conf *keyconf)
{
struct ieee80211_key *key;
key = container_of(keyconf, struct ieee80211_key, conf);
assert_key_lock(key->local);
/*
* if key was uploaded, we assume the driver will/has remove(d)
* it, so adjust bookkeeping accordingly
*/
if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) {
key->flags &= ~KEY_FLAG_UPLOADED_TO_HARDWARE;
if (!((key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC) ||
(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV) ||
(key->conf.flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE)))
increment_tailroom_need_count(key->sdata);
}
ieee80211_key_free(key, false);
}
EXPORT_SYMBOL_GPL(ieee80211_remove_key);
struct ieee80211_key_conf *
ieee80211_gtk_rekey_add(struct ieee80211_vif *vif,
struct ieee80211_key_conf *keyconf)
{
struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
struct ieee80211_local *local = sdata->local;
struct ieee80211_key *key;
int err;
if (WARN_ON(!local->wowlan))
return ERR_PTR(-EINVAL);
if (WARN_ON(vif->type != NL80211_IFTYPE_STATION))
return ERR_PTR(-EINVAL);
key = ieee80211_key_alloc(keyconf->cipher, keyconf->keyidx,
keyconf->keylen, keyconf->key,
0, NULL);
if (IS_ERR(key))
return ERR_PTR(PTR_ERR(key));
if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
err = ieee80211_key_link(key, sdata, NULL);
if (err)
return ERR_PTR(err);
return &key->conf;
}
EXPORT_SYMBOL_GPL(ieee80211_gtk_rekey_add);

9
net/mac80211/mlme.c
View file

@ -1113,6 +1113,15 @@ ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
case -1:
cfg80211_chandef_create(&new_chandef, new_chan,
NL80211_CHAN_NO_HT);
/* keep width for 5/10 MHz channels */
switch (sdata->vif.bss_conf.chandef.width) {
case NL80211_CHAN_WIDTH_5:
case NL80211_CHAN_WIDTH_10:
new_chandef.width = sdata->vif.bss_conf.chandef.width;
break;
default:
break;
}
break;
}

23
net/mac80211/rate.c
View file

@ -210,7 +210,7 @@ static bool rc_no_data_or_no_ack_use_min(struct ieee80211_tx_rate_control *txrc)
!ieee80211_is_data(fc);
}
static void rc_send_low_broadcast(s8 *idx, u32 basic_rates,
static void rc_send_low_basicrate(s8 *idx, u32 basic_rates,
struct ieee80211_supported_band *sband)
{
u8 i;
@ -263,28 +263,37 @@ static void __rate_control_send_low(struct ieee80211_hw *hw,
}
bool rate_control_send_low(struct ieee80211_sta *sta,
bool rate_control_send_low(struct ieee80211_sta *pubsta,
void *priv_sta,
struct ieee80211_tx_rate_control *txrc)
{
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(txrc->skb);
struct ieee80211_supported_band *sband = txrc->sband;
struct sta_info *sta;
int mcast_rate;
bool use_basicrate = false;
if (!sta || !priv_sta || rc_no_data_or_no_ack_use_min(txrc)) {
__rate_control_send_low(txrc->hw, sband, sta, info);
if (!pubsta || !priv_sta || rc_no_data_or_no_ack_use_min(txrc)) {
__rate_control_send_low(txrc->hw, sband, pubsta, info);
if (!sta && txrc->bss) {
if (!pubsta && txrc->bss) {
mcast_rate = txrc->bss_conf->mcast_rate[sband->band];
if (mcast_rate > 0) {
info->control.rates[0].idx = mcast_rate - 1;
return true;
}
use_basicrate = true;
} else if (pubsta) {
sta = container_of(pubsta, struct sta_info, sta);
if (ieee80211_vif_is_mesh(&sta->sdata->vif))
use_basicrate = true;
}
rc_send_low_broadcast(&info->control.rates[0].idx,
if (use_basicrate)
rc_send_low_basicrate(&info->control.rates[0].idx,
txrc->bss_conf->basic_rates,
sband);
}
return true;
}
return false;

5
net/mac80211/rc80211_minstrel_ht.c
View file

@ -439,12 +439,13 @@ minstrel_aggr_check(struct ieee80211_sta *pubsta, struct sk_buff *skb)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
struct sta_info *sta = container_of(pubsta, struct sta_info, sta);
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
u16 tid;
if (unlikely(!ieee80211_is_data_qos(hdr->frame_control)))
return;
if (unlikely(skb->protocol == cpu_to_be16(ETH_P_PAE)))
if (unlikely(info->control.flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO))
return;
tid = *ieee80211_get_qos_ctl(hdr) & IEEE80211_QOS_CTL_TID_MASK;
@ -776,7 +777,7 @@ minstrel_ht_get_rate(void *priv, struct ieee80211_sta *sta, void *priv_sta,
/* Don't use EAPOL frames for sampling on non-mrr hw */
if (mp->hw->max_rates == 1 &&
txrc->skb->protocol == cpu_to_be16(ETH_P_PAE))
(info->control.flags & IEEE80211_TX_CTRL_PORT_CTRL_PROTO))
sample_idx = -1;
else
sample_idx = minstrel_get_sample_rate(mp, mi);

404
net/mac80211/rx.c
View file

@ -1054,207 +1054,6 @@ ieee80211_rx_h_check(struct ieee80211_rx_data *rx)
}
static ieee80211_rx_result debug_noinline
ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx)
{
struct sk_buff *skb = rx->skb;
struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
int keyidx;
int hdrlen;
ieee80211_rx_result result = RX_DROP_UNUSABLE;
struct ieee80211_key *sta_ptk = NULL;
int mmie_keyidx = -1;
__le16 fc;
/*
* Key selection 101
*
* There are four types of keys:
* - GTK (group keys)
* - IGTK (group keys for management frames)
* - PTK (pairwise keys)
* - STK (station-to-station pairwise keys)
*
* When selecting a key, we have to distinguish between multicast
* (including broadcast) and unicast frames, the latter can only
* use PTKs and STKs while the former always use GTKs and IGTKs.
* Unless, of course, actual WEP keys ("pre-RSNA") are used, then
* unicast frames can also use key indices like GTKs. Hence, if we
* don't have a PTK/STK we check the key index for a WEP key.
*
* Note that in a regular BSS, multicast frames are sent by the
* AP only, associated stations unicast the frame to the AP first
* which then multicasts it on their behalf.
*
* There is also a slight problem in IBSS mode: GTKs are negotiated
* with each station, that is something we don't currently handle.
* The spec seems to expect that one negotiates the same key with
* every station but there's no such requirement; VLANs could be
* possible.
*/
/*
* No point in finding a key and decrypting if the frame is neither
* addressed to us nor a multicast frame.
*/
if (!(status->rx_flags & IEEE80211_RX_RA_MATCH))
return RX_CONTINUE;
/* start without a key */
rx->key = NULL;
if (rx->sta)
sta_ptk = rcu_dereference(rx->sta->ptk);
fc = hdr->frame_control;
if (!ieee80211_has_protected(fc))
mmie_keyidx = ieee80211_get_mmie_keyidx(rx->skb);
if (!is_multicast_ether_addr(hdr->addr1) && sta_ptk) {
rx->key = sta_ptk;
if ((status->flag & RX_FLAG_DECRYPTED) &&
(status->flag & RX_FLAG_IV_STRIPPED))
return RX_CONTINUE;
/* Skip decryption if the frame is not protected. */
if (!ieee80211_has_protected(fc))
return RX_CONTINUE;
} else if (mmie_keyidx >= 0) {
/* Broadcast/multicast robust management frame / BIP */
if ((status->flag & RX_FLAG_DECRYPTED) &&
(status->flag & RX_FLAG_IV_STRIPPED))
return RX_CONTINUE;
if (mmie_keyidx < NUM_DEFAULT_KEYS ||
mmie_keyidx >= NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS)
return RX_DROP_MONITOR; /* unexpected BIP keyidx */
if (rx->sta)
rx->key = rcu_dereference(rx->sta->gtk[mmie_keyidx]);
if (!rx->key)
rx->key = rcu_dereference(rx->sdata->keys[mmie_keyidx]);
} else if (!ieee80211_has_protected(fc)) {
/*
* The frame was not protected, so skip decryption. However, we
* need to set rx->key if there is a key that could have been
* used so that the frame may be dropped if encryption would
* have been expected.
*/
struct ieee80211_key *key = NULL;
struct ieee80211_sub_if_data *sdata = rx->sdata;
int i;
if (ieee80211_is_mgmt(fc) &&
is_multicast_ether_addr(hdr->addr1) &&
(key = rcu_dereference(rx->sdata->default_mgmt_key)))
rx->key = key;
else {
if (rx->sta) {
for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
key = rcu_dereference(rx->sta->gtk[i]);
if (key)
break;
}
}
if (!key) {
for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
key = rcu_dereference(sdata->keys[i]);
if (key)
break;
}
}
if (key)
rx->key = key;
}
return RX_CONTINUE;
} else {
u8 keyid;
/*
* The device doesn't give us the IV so we won't be
* able to look up the key. That's ok though, we
* don't need to decrypt the frame, we just won't
* be able to keep statistics accurate.
* Except for key threshold notifications, should
* we somehow allow the driver to tell us which key
* the hardware used if this flag is set?
*/
if ((status->flag & RX_FLAG_DECRYPTED) &&
(status->flag & RX_FLAG_IV_STRIPPED))
return RX_CONTINUE;
hdrlen = ieee80211_hdrlen(fc);
if (rx->skb->len < 8 + hdrlen)
return RX_DROP_UNUSABLE; /* TODO: count this? */
/*
* no need to call ieee80211_wep_get_keyidx,
* it verifies a bunch of things we've done already
*/
skb_copy_bits(rx->skb, hdrlen + 3, &keyid, 1);
keyidx = keyid >> 6;
/* check per-station GTK first, if multicast packet */
if (is_multicast_ether_addr(hdr->addr1) && rx->sta)
rx->key = rcu_dereference(rx->sta->gtk[keyidx]);
/* if not found, try default key */
if (!rx->key) {
rx->key = rcu_dereference(rx->sdata->keys[keyidx]);
/*
* RSNA-protected unicast frames should always be
* sent with pairwise or station-to-station keys,
* but for WEP we allow using a key index as well.
*/
if (rx->key &&
rx->key->conf.cipher != WLAN_CIPHER_SUITE_WEP40 &&
rx->key->conf.cipher != WLAN_CIPHER_SUITE_WEP104 &&
!is_multicast_ether_addr(hdr->addr1))
rx->key = NULL;
}
}
if (rx->key) {
if (unlikely(rx->key->flags & KEY_FLAG_TAINTED))
return RX_DROP_MONITOR;
rx->key->tx_rx_count++;
/* TODO: add threshold stuff again */
} else {
return RX_DROP_MONITOR;
}
switch (rx->key->conf.cipher) {
case WLAN_CIPHER_SUITE_WEP40:
case WLAN_CIPHER_SUITE_WEP104:
result = ieee80211_crypto_wep_decrypt(rx);
break;
case WLAN_CIPHER_SUITE_TKIP:
result = ieee80211_crypto_tkip_decrypt(rx);
break;
case WLAN_CIPHER_SUITE_CCMP:
result = ieee80211_crypto_ccmp_decrypt(rx);
break;
case WLAN_CIPHER_SUITE_AES_CMAC:
result = ieee80211_crypto_aes_cmac_decrypt(rx);
break;
default:
/*
* We can reach here only with HW-only algorithms
* but why didn't it decrypt the frame?!
*/
return RX_DROP_UNUSABLE;
}
/* the hdr variable is invalid after the decrypt handlers */
/* either the frame has been decrypted or will be dropped */
status->flag |= RX_FLAG_DECRYPTED;
return result;
}
static ieee80211_rx_result debug_noinline
ieee80211_rx_h_check_more_data(struct ieee80211_rx_data *rx)
{
@ -1556,6 +1355,207 @@ ieee80211_rx_h_sta_process(struct ieee80211_rx_data *rx)
return RX_CONTINUE;
} /* ieee80211_rx_h_sta_process */
static ieee80211_rx_result debug_noinline
ieee80211_rx_h_decrypt(struct ieee80211_rx_data *rx)
{
struct sk_buff *skb = rx->skb;
struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
int keyidx;
int hdrlen;
ieee80211_rx_result result = RX_DROP_UNUSABLE;
struct ieee80211_key *sta_ptk = NULL;
int mmie_keyidx = -1;
__le16 fc;
/*
* Key selection 101
*
* There are four types of keys:
* - GTK (group keys)
* - IGTK (group keys for management frames)
* - PTK (pairwise keys)
* - STK (station-to-station pairwise keys)
*
* When selecting a key, we have to distinguish between multicast
* (including broadcast) and unicast frames, the latter can only
* use PTKs and STKs while the former always use GTKs and IGTKs.
* Unless, of course, actual WEP keys ("pre-RSNA") are used, then
* unicast frames can also use key indices like GTKs. Hence, if we
* don't have a PTK/STK we check the key index for a WEP key.
*
* Note that in a regular BSS, multicast frames are sent by the
* AP only, associated stations unicast the frame to the AP first
* which then multicasts it on their behalf.
*
* There is also a slight problem in IBSS mode: GTKs are negotiated
* with each station, that is something we don't currently handle.
* The spec seems to expect that one negotiates the same key with
* every station but there's no such requirement; VLANs could be
* possible.
*/
/*
* No point in finding a key and decrypting if the frame is neither
* addressed to us nor a multicast frame.
*/
if (!(status->rx_flags & IEEE80211_RX_RA_MATCH))
return RX_CONTINUE;
/* start without a key */
rx->key = NULL;
if (rx->sta)
sta_ptk = rcu_dereference(rx->sta->ptk);
fc = hdr->frame_control;
if (!ieee80211_has_protected(fc))
mmie_keyidx = ieee80211_get_mmie_keyidx(rx->skb);
if (!is_multicast_ether_addr(hdr->addr1) && sta_ptk) {
rx->key = sta_ptk;
if ((status->flag & RX_FLAG_DECRYPTED) &&
(status->flag & RX_FLAG_IV_STRIPPED))
return RX_CONTINUE;
/* Skip decryption if the frame is not protected. */
if (!ieee80211_has_protected(fc))
return RX_CONTINUE;
} else if (mmie_keyidx >= 0) {
/* Broadcast/multicast robust management frame / BIP */
if ((status->flag & RX_FLAG_DECRYPTED) &&
(status->flag & RX_FLAG_IV_STRIPPED))
return RX_CONTINUE;
if (mmie_keyidx < NUM_DEFAULT_KEYS ||
mmie_keyidx >= NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS)
return RX_DROP_MONITOR; /* unexpected BIP keyidx */
if (rx->sta)
rx->key = rcu_dereference(rx->sta->gtk[mmie_keyidx]);
if (!rx->key)
rx->key = rcu_dereference(rx->sdata->keys[mmie_keyidx]);
} else if (!ieee80211_has_protected(fc)) {
/*
* The frame was not protected, so skip decryption. However, we
* need to set rx->key if there is a key that could have been
* used so that the frame may be dropped if encryption would
* have been expected.
*/
struct ieee80211_key *key = NULL;
struct ieee80211_sub_if_data *sdata = rx->sdata;
int i;
if (ieee80211_is_mgmt(fc) &&
is_multicast_ether_addr(hdr->addr1) &&
(key = rcu_dereference(rx->sdata->default_mgmt_key)))
rx->key = key;
else {
if (rx->sta) {
for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
key = rcu_dereference(rx->sta->gtk[i]);
if (key)
break;
}
}
if (!key) {
for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
key = rcu_dereference(sdata->keys[i]);
if (key)
break;
}
}
if (key)
rx->key = key;
}
return RX_CONTINUE;
} else {
u8 keyid;
/*
* The device doesn't give us the IV so we won't be
* able to look up the key. That's ok though, we
* don't need to decrypt the frame, we just won't
* be able to keep statistics accurate.
* Except for key threshold notifications, should
* we somehow allow the driver to tell us which key
* the hardware used if this flag is set?
*/
if ((status->flag & RX_FLAG_DECRYPTED) &&
(status->flag & RX_FLAG_IV_STRIPPED))
return RX_CONTINUE;
hdrlen = ieee80211_hdrlen(fc);
if (rx->skb->len < 8 + hdrlen)
return RX_DROP_UNUSABLE; /* TODO: count this? */
/*
* no need to call ieee80211_wep_get_keyidx,
* it verifies a bunch of things we've done already
*/
skb_copy_bits(rx->skb, hdrlen + 3, &keyid, 1);
keyidx = keyid >> 6;
/* check per-station GTK first, if multicast packet */
if (is_multicast_ether_addr(hdr->addr1) && rx->sta)
rx->key = rcu_dereference(rx->sta->gtk[keyidx]);
/* if not found, try default key */
if (!rx->key) {
rx->key = rcu_dereference(rx->sdata->keys[keyidx]);
/*
* RSNA-protected unicast frames should always be
* sent with pairwise or station-to-station keys,
* but for WEP we allow using a key index as well.
*/
if (rx->key &&
rx->key->conf.cipher != WLAN_CIPHER_SUITE_WEP40 &&
rx->key->conf.cipher != WLAN_CIPHER_SUITE_WEP104 &&
!is_multicast_ether_addr(hdr->addr1))
rx->key = NULL;
}
}
if (rx->key) {
if (unlikely(rx->key->flags & KEY_FLAG_TAINTED))
return RX_DROP_MONITOR;
rx->key->tx_rx_count++;
/* TODO: add threshold stuff again */
} else {
return RX_DROP_MONITOR;
}
switch (rx->key->conf.cipher) {
case WLAN_CIPHER_SUITE_WEP40:
case WLAN_CIPHER_SUITE_WEP104:
result = ieee80211_crypto_wep_decrypt(rx);
break;
case WLAN_CIPHER_SUITE_TKIP:
result = ieee80211_crypto_tkip_decrypt(rx);
break;
case WLAN_CIPHER_SUITE_CCMP:
result = ieee80211_crypto_ccmp_decrypt(rx);
break;
case WLAN_CIPHER_SUITE_AES_CMAC:
result = ieee80211_crypto_aes_cmac_decrypt(rx);
break;
default:
/*
* We can reach here only with HW-only algorithms
* but why didn't it decrypt the frame?!
*/
return RX_DROP_UNUSABLE;
}
/* the hdr variable is invalid after the decrypt handlers */
/* either the frame has been decrypted or will be dropped */
status->flag |= RX_FLAG_DECRYPTED;
return result;
}
static inline struct ieee80211_fragment_entry *
ieee80211_reassemble_add(struct ieee80211_sub_if_data *sdata,
unsigned int frag, unsigned int seq, int rx_queue,
@ -2939,10 +2939,10 @@ static void ieee80211_rx_handlers(struct ieee80211_rx_data *rx,
*/
rx->skb = skb;
CALL_RXH(ieee80211_rx_h_decrypt)
CALL_RXH(ieee80211_rx_h_check_more_data)
CALL_RXH(ieee80211_rx_h_uapsd_and_pspoll)
CALL_RXH(ieee80211_rx_h_sta_process)
CALL_RXH(ieee80211_rx_h_decrypt)
CALL_RXH(ieee80211_rx_h_defragment)
CALL_RXH(ieee80211_rx_h_michael_mic_verify)
/* must be after MMIC verify so header is counted in MPDU mic */

8
net/mac80211/tx.c
View file

@ -539,9 +539,11 @@ ieee80211_tx_h_check_control_port_protocol(struct ieee80211_tx_data *tx)
{
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx->skb);
if (unlikely(tx->sdata->control_port_protocol == tx->skb->protocol &&
tx->sdata->control_port_no_encrypt))
info->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
if (unlikely(tx->sdata->control_port_protocol == tx->skb->protocol)) {
if (tx->sdata->control_port_no_encrypt)
info->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
info->control.flags |= IEEE80211_TX_CTRL_PORT_CTRL_PROTO;
}
return TX_CONTINUE;
}

2
net/mac80211/util.c
View file

@ -1453,8 +1453,8 @@ int ieee80211_reconfig(struct ieee80211_local *local)
local->resuming = true;
if (local->wowlan) {
local->wowlan = false;
res = drv_resume(local);
local->wowlan = false;
if (res < 0) {
local->resuming = false;
return res;