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mac80211: add support for "active" monitor interfaces which allow userspace tools to connect to APs via injection 

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@36743 3c298f89-4303-0410-b956-a3cf2f4a3e73
master
Felix Fietkau 2013-05-28 11:10:41 +00:00
parent cf58fd647b
commit fbe37f1e87
8 changed files with 263 additions and 27 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

246
package/mac80211/patches/300-pending_work.patch
View File

@ -740,7 +740,15 @@
struct rate_info txrate;
struct rate_info rxrate;
u32 rx_packets;
@@ -4027,6 +4041,17 @@ bool cfg80211_reg_can_beacon(struct wiph
@@ -954,6 +968,7 @@ enum monitor_flags {
MONITOR_FLAG_CONTROL = 1<<NL80211_MNTR_FLAG_CONTROL,
MONITOR_FLAG_OTHER_BSS = 1<<NL80211_MNTR_FLAG_OTHER_BSS,
MONITOR_FLAG_COOK_FRAMES = 1<<NL80211_MNTR_FLAG_COOK_FRAMES,
+ MONITOR_FLAG_ACTIVE = 1<<NL80211_MNTR_FLAG_ACTIVE,
};
/**
@@ -4027,6 +4042,17 @@ bool cfg80211_reg_can_beacon(struct wiph
void cfg80211_ch_switch_notify(struct net_device *dev,
struct cfg80211_chan_def *chandef);
@ -1024,7 +1032,31 @@
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -444,7 +444,7 @@ static void sta_set_sinfo(struct sta_inf
@@ -73,16 +73,19 @@ static int ieee80211_change_iface(struct
struct ieee80211_local *local = sdata->local;
if (ieee80211_sdata_running(sdata)) {
+ u32 mask = MONITOR_FLAG_COOK_FRAMES |
+ MONITOR_FLAG_ACTIVE;
+
/*
- * Prohibit MONITOR_FLAG_COOK_FRAMES to be
- * changed while the interface is up.
+ * Prohibit MONITOR_FLAG_COOK_FRAMES and
+ * MONITOR_FLAG_ACTIVE to be changed while the
+ * interface is up.
* Else we would need to add a lot of cruft
* to update everything:
* cooked_mntrs, monitor and all fif_* counters
* reconfigure hardware
*/
- if ((*flags & MONITOR_FLAG_COOK_FRAMES) !=
- (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES))
+ if ((*flags & mask) != (sdata->u.mntr_flags & mask))
return -EBUSY;
ieee80211_adjust_monitor_flags(sdata, -1);
@@ -444,7 +447,7 @@ static void sta_set_sinfo(struct sta_inf
struct ieee80211_local *local = sdata->local;
struct timespec uptime;
u64 packets = 0;
@ -1033,7 +1065,7 @@
sinfo->generation = sdata->local->sta_generation;
@@ -488,6 +488,17 @@ static void sta_set_sinfo(struct sta_inf
@@ -488,6 +491,17 @@ static void sta_set_sinfo(struct sta_inf
sinfo->signal = (s8)sta->last_signal;
sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal);
}
@ -1051,7 +1083,7 @@
sta_set_rate_info_tx(sta, &sta->last_tx_rate, &sinfo->txrate);
sta_set_rate_info_rx(sta, &sinfo->rxrate);
@@ -1052,6 +1063,7 @@ static int ieee80211_stop_ap(struct wiph
@@ -1052,6 +1066,7 @@ static int ieee80211_stop_ap(struct wiph
ieee80211_free_keys(sdata);
sdata->vif.bss_conf.enable_beacon = false;
@ -1059,7 +1091,7 @@
clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
@@ -2416,9 +2428,22 @@ static int ieee80211_set_bitrate_mask(st
@@ -2416,9 +2431,22 @@ static int ieee80211_set_bitrate_mask(st
}
for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
@ -1296,7 +1328,51 @@
u32 ieee80211_mandatory_rates(struct ieee80211_local *local,
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -450,7 +450,6 @@ int ieee80211_do_open(struct wireless_de
@@ -159,7 +159,8 @@ static int ieee80211_change_mtu(struct n
return 0;
}
-static int ieee80211_verify_mac(struct ieee80211_local *local, u8 *addr)
+static int ieee80211_verify_mac(struct ieee80211_local *local, u8 *addr,
+ bool check_dup)
{
struct ieee80211_sub_if_data *sdata;
u64 new, mask, tmp;
@@ -179,10 +180,13 @@ static int ieee80211_verify_mac(struct i
((u64)m[2] << 3*8) | ((u64)m[3] << 2*8) |
((u64)m[4] << 1*8) | ((u64)m[5] << 0*8);
+ if (!check_dup)
+ return ret;
mutex_lock(&local->iflist_mtx);
list_for_each_entry(sdata, &local->interfaces, list) {
- if (sdata->vif.type == NL80211_IFTYPE_MONITOR)
+ if (sdata->vif.type == NL80211_IFTYPE_MONITOR &&
+ !(sdata->u.mntr_flags & MONITOR_FLAG_ACTIVE))
continue;
m = sdata->vif.addr;
@@ -204,12 +208,17 @@ static int ieee80211_change_mac(struct n
{
struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct sockaddr *sa = addr;
+ bool check_dup = true;
int ret;
if (ieee80211_sdata_running(sdata))
return -EBUSY;
- ret = ieee80211_verify_mac(sdata->local, sa->sa_data);
+ if (sdata->vif.type == NL80211_IFTYPE_MONITOR &&
+ !(sdata->u.mntr_flags & MONITOR_FLAG_ACTIVE))
+ check_dup = false;
+
+ ret = ieee80211_verify_mac(sdata->local, sa->sa_data, check_dup);
if (ret)
return ret;
@@ -450,7 +459,6 @@ int ieee80211_do_open(struct wireless_de
struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
struct net_device *dev = wdev->netdev;
struct ieee80211_local *local = sdata->local;
@ -1304,7 +1380,7 @@
u32 changed = 0;
int res;
u32 hw_reconf_flags = 0;
@@ -474,6 +473,9 @@ int ieee80211_do_open(struct wireless_de
@@ -474,6 +482,9 @@ int ieee80211_do_open(struct wireless_de
master->control_port_protocol;
sdata->control_port_no_encrypt =
master->control_port_no_encrypt;
@ -1314,7 +1390,20 @@
break;
}
case NL80211_IFTYPE_AP:
@@ -609,30 +611,8 @@ int ieee80211_do_open(struct wireless_de
@@ -538,7 +549,11 @@ int ieee80211_do_open(struct wireless_de
break;
}
- if (local->monitors == 0 && local->open_count == 0) {
+ if (sdata->u.mntr_flags & MONITOR_FLAG_ACTIVE) {
+ res = drv_add_interface(local, sdata);
+ if (res)
+ goto err_stop;
+ } else if (local->monitors == 0 && local->open_count == 0) {
res = ieee80211_add_virtual_monitor(local);
if (res)
goto err_stop;
@@ -609,30 +624,8 @@ int ieee80211_do_open(struct wireless_de
set_bit(SDATA_STATE_RUNNING, &sdata->state);
@ -1346,7 +1435,7 @@
/*
* set_multicast_list will be invoked by the networking core
@@ -653,7 +633,11 @@ int ieee80211_do_open(struct wireless_de
@@ -653,7 +646,11 @@ int ieee80211_do_open(struct wireless_de
ieee80211_recalc_ps(local, -1);
@ -1359,7 +1448,29 @@
unsigned long flags;
int n_acs = IEEE80211_NUM_ACS;
int ac;
@@ -1092,6 +1076,74 @@ static void ieee80211_if_setup(struct ne
@@ -916,7 +913,11 @@ static void ieee80211_do_stop(struct iee
mutex_lock(&local->mtx);
ieee80211_recalc_idle(local);
mutex_unlock(&local->mtx);
- break;
+
+ if (!(sdata->u.mntr_flags & MONITOR_FLAG_ACTIVE))
+ break;
+
+ /* fall through */
default:
if (going_down)
drv_remove_interface(local, sdata);
@@ -1075,7 +1076,7 @@ static const struct net_device_ops ieee8
.ndo_start_xmit = ieee80211_monitor_start_xmit,
.ndo_set_rx_mode = ieee80211_set_multicast_list,
.ndo_change_mtu = ieee80211_change_mtu,
- .ndo_set_mac_address = eth_mac_addr,
+ .ndo_set_mac_address = ieee80211_change_mac,
.ndo_select_queue = ieee80211_monitor_select_queue,
};
@@ -1092,6 +1093,74 @@ static void ieee80211_if_setup(struct ne
dev->destructor = free_netdev;
}
@ -1434,7 +1545,7 @@
static void ieee80211_iface_work(struct work_struct *work)
{
struct ieee80211_sub_if_data *sdata =
@@ -1196,6 +1248,9 @@ static void ieee80211_iface_work(struct
@@ -1196,6 +1265,9 @@ static void ieee80211_iface_work(struct
break;
ieee80211_mesh_rx_queued_mgmt(sdata, skb);
break;
@ -1444,7 +1555,7 @@
default:
WARN(1, "frame for unexpected interface type");
break;
@@ -1718,6 +1773,15 @@ void ieee80211_remove_interfaces(struct
@@ -1718,6 +1790,15 @@ void ieee80211_remove_interfaces(struct
ASSERT_RTNL();
@ -3608,7 +3719,27 @@
spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
return ret;
}
@@ -660,7 +661,7 @@ void ieee80211_queue_delayed_work(struct
@@ -559,6 +560,9 @@ void ieee80211_iterate_active_interfaces
list_for_each_entry(sdata, &local->interfaces, list) {
switch (sdata->vif.type) {
case NL80211_IFTYPE_MONITOR:
+ if (!(sdata->u.mntr_flags & MONITOR_FLAG_ACTIVE))
+ continue;
+ break;
case NL80211_IFTYPE_AP_VLAN:
continue;
default:
@@ -597,6 +601,9 @@ void ieee80211_iterate_active_interfaces
list_for_each_entry_rcu(sdata, &local->interfaces, list) {
switch (sdata->vif.type) {
case NL80211_IFTYPE_MONITOR:
+ if (!(sdata->u.mntr_flags & MONITOR_FLAG_ACTIVE))
+ continue;
+ break;
case NL80211_IFTYPE_AP_VLAN:
continue;
default:
@@ -660,7 +667,7 @@ void ieee80211_queue_delayed_work(struct
}
EXPORT_SYMBOL(ieee80211_queue_delayed_work);
@ -3617,7 +3748,7 @@
struct ieee802_11_elems *elems,
u64 filter, u32 crc)
{
@@ -668,6 +669,7 @@ u32 ieee802_11_parse_elems_crc(u8 *start
@@ -668,6 +675,7 @@ u32 ieee802_11_parse_elems_crc(u8 *start
u8 *pos = start;
bool calc_crc = filter != 0;
DECLARE_BITMAP(seen_elems, 256);
@ -3625,7 +3756,7 @@
bitmap_zero(seen_elems, 256);
memset(elems, 0, sizeof(*elems));
@@ -715,6 +717,12 @@ u32 ieee802_11_parse_elems_crc(u8 *start
@@ -715,6 +723,12 @@ u32 ieee802_11_parse_elems_crc(u8 *start
case WLAN_EID_COUNTRY:
case WLAN_EID_PWR_CONSTRAINT:
case WLAN_EID_TIMEOUT_INTERVAL:
@ -3638,7 +3769,7 @@
if (test_bit(id, seen_elems)) {
elems->parse_error = true;
left -= elen;
@@ -862,6 +870,48 @@ u32 ieee802_11_parse_elems_crc(u8 *start
@@ -862,6 +876,48 @@ u32 ieee802_11_parse_elems_crc(u8 *start
}
elems->ch_switch_ie = (void *)pos;
break;
@ -3749,6 +3880,31 @@
/* keep last */
__NL80211_STA_INFO_AFTER_LAST,
@@ -2395,6 +2401,8 @@ enum nl80211_survey_info {
* @NL80211_MNTR_FLAG_OTHER_BSS: disable BSSID filtering
* @NL80211_MNTR_FLAG_COOK_FRAMES: report frames after processing.
* overrides all other flags.
+ * @NL80211_MNTR_FLAG_ACTIVE: use the configured MAC address
+ * and ACK incoming unicast packets.
*
* @__NL80211_MNTR_FLAG_AFTER_LAST: internal use
* @NL80211_MNTR_FLAG_MAX: highest possible monitor flag
@@ -2406,6 +2414,7 @@ enum nl80211_mntr_flags {
NL80211_MNTR_FLAG_CONTROL,
NL80211_MNTR_FLAG_OTHER_BSS,
NL80211_MNTR_FLAG_COOK_FRAMES,
+ NL80211_MNTR_FLAG_ACTIVE,
/* keep last */
__NL80211_MNTR_FLAG_AFTER_LAST,
@@ -3557,6 +3566,7 @@ enum nl80211_feature_flags {
NL80211_FEATURE_ADVERTISE_CHAN_LIMITS = 1 << 14,
NL80211_FEATURE_FULL_AP_CLIENT_STATE = 1 << 15,
NL80211_FEATURE_USERSPACE_MPM = 1 << 16,
+ NL80211_FEATURE_ACTIVE_MONITOR = 1 << 17,
};
/**
--- a/net/mac80211/sta_info.c
+++ b/net/mac80211/sta_info.c
@@ -358,6 +358,8 @@ struct sta_info *sta_info_alloc(struct i
@ -3762,7 +3918,38 @@
kfree(sta);
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -3367,6 +3367,32 @@ static bool nl80211_put_sta_rate(struct
@@ -2270,6 +2270,7 @@ static const struct nla_policy mntr_flag
[NL80211_MNTR_FLAG_CONTROL] = { .type = NLA_FLAG },
[NL80211_MNTR_FLAG_OTHER_BSS] = { .type = NLA_FLAG },
[NL80211_MNTR_FLAG_COOK_FRAMES] = { .type = NLA_FLAG },
+ [NL80211_MNTR_FLAG_ACTIVE] = { .type = NLA_FLAG },
};
static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags)
@@ -2381,6 +2382,10 @@ static int nl80211_set_interface(struct
change = true;
}
+ if ((*flags & NL80211_MNTR_FLAG_ACTIVE) &&
+ !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
+ return -EOPNOTSUPP;
+
if (change)
err = cfg80211_change_iface(rdev, dev, ntype, flags, &params);
else
@@ -2438,6 +2443,11 @@ static int nl80211_new_interface(struct
err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ?
info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL,
&flags);
+
+ if (!err && (flags & NL80211_MNTR_FLAG_ACTIVE) &&
+ !(rdev->wiphy.features & NL80211_FEATURE_ACTIVE_MONITOR))
+ return -EOPNOTSUPP;
+
wdev = rdev_add_virtual_intf(rdev,
nla_data(info->attrs[NL80211_ATTR_IFNAME]),
type, err ? NULL : &flags, &params);
@@ -3367,6 +3377,32 @@ static bool nl80211_put_sta_rate(struct
return true;
}
@ -3795,7 +3982,7 @@
static int nl80211_send_station(struct sk_buff *msg, u32 portid, u32 seq,
int flags,
struct cfg80211_registered_device *rdev,
@@ -3402,7 +3428,7 @@ static int nl80211_send_station(struct s
@@ -3402,7 +3438,7 @@ static int nl80211_send_station(struct s
(u32)sinfo->rx_bytes))
goto nla_put_failure;
if ((sinfo->filled & (STATION_INFO_TX_BYTES |
@ -3804,7 +3991,7 @@
nla_put_u32(msg, NL80211_STA_INFO_TX_BYTES,
(u32)sinfo->tx_bytes))
goto nla_put_failure;
@@ -3438,6 +3464,18 @@ static int nl80211_send_station(struct s
@@ -3438,6 +3474,18 @@ static int nl80211_send_station(struct s
default:
break;
}
@ -3835,6 +4022,15 @@
if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_HT)
hw->flags |= IEEE80211_HW_AMPDU_AGGREGATION;
@@ -776,6 +777,8 @@ void ath9k_set_hw_capab(struct ath_softc
if (AR_SREV_9160_10_OR_LATER(sc->sc_ah) || ath9k_modparam_nohwcrypt)
hw->flags |= IEEE80211_HW_MFP_CAPABLE;
+ hw->wiphy->features |= NL80211_FEATURE_ACTIVE_MONITOR;
+
hw->wiphy->interface_modes =
BIT(NL80211_IFTYPE_P2P_GO) |
BIT(NL80211_IFTYPE_P2P_CLIENT) |
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -125,24 +125,6 @@ static void ath_tx_queue_tid(struct ath_
@ -4362,3 +4558,15 @@
REG_WRITE(ah, AR_DMISC(q),
AR_D_MISC_CW_BKOFF_EN | AR_D_MISC_FRAG_WAIT_EN | 0x1);
else
--- a/net/mac80211/driver-ops.h
+++ b/net/mac80211/driver-ops.h
@@ -146,7 +146,8 @@ static inline int drv_add_interface(stru
if (WARN_ON(sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
(sdata->vif.type == NL80211_IFTYPE_MONITOR &&
- !(local->hw.flags & IEEE80211_HW_WANT_MONITOR_VIF))))
+ !(local->hw.flags & IEEE80211_HW_WANT_MONITOR_VIF) &&
+ !(sdata->u.mntr_flags & MONITOR_FLAG_ACTIVE))))
return -EINVAL;
trace_drv_add_interface(local, sdata);

2
package/mac80211/patches/310-ap_scan.patch
View File

@ -1,6 +1,6 @@
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -2078,7 +2078,7 @@ static int ieee80211_scan(struct wiphy *
@@ -2081,7 +2081,7 @@ static int ieee80211_scan(struct wiphy *
* the frames sent while scanning on other channel will be
* lost)
*/

2
package/mac80211/patches/502-ath9k_ahb_init.patch
View File

@ -1,6 +1,6 @@
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -986,23 +986,23 @@ static int __init ath9k_init(void)
@@ -988,23 +988,23 @@ static int __init ath9k_init(void)
goto err_out;
}

2
package/mac80211/patches/520-mac80211_cur_txpower.patch
View File

@ -10,7 +10,7 @@
u8 uapsd_queues;
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -2259,7 +2259,9 @@ static int ieee80211_get_tx_power(struct
@@ -2262,7 +2262,9 @@ static int ieee80211_get_tx_power(struct
struct ieee80211_local *local = wiphy_priv(wiphy);
struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);

8
package/mac80211/patches/523-mac80211_configure_antenna_gain.patch
View File

@ -72,7 +72,7 @@
u32 tx_ant, rx_ant;
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -2269,6 +2269,19 @@ static int ieee80211_get_tx_power(struct
@@ -2272,6 +2272,19 @@ static int ieee80211_get_tx_power(struct
return 0;
}
@ -92,7 +92,7 @@
static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
const u8 *addr)
{
@@ -3459,6 +3472,7 @@ struct cfg80211_ops mac80211_config_ops
@@ -3462,6 +3475,7 @@ struct cfg80211_ops mac80211_config_ops
.set_wiphy_params = ieee80211_set_wiphy_params,
.set_tx_power = ieee80211_set_tx_power,
.get_tx_power = ieee80211_get_tx_power,
@ -102,7 +102,7 @@
CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -1921,6 +1921,7 @@ struct cfg80211_update_ft_ies_params {
@@ -1922,6 +1922,7 @@ struct cfg80211_update_ft_ies_params {
* (as advertised by the nl80211 feature flag.)
* @get_tx_power: store the current TX power into the dbm variable;
* return 0 if successful
@ -110,7 +110,7 @@
*
* @set_wds_peer: set the WDS peer for a WDS interface
*
@@ -2134,6 +2135,7 @@ struct cfg80211_ops {
@@ -2135,6 +2136,7 @@ struct cfg80211_ops {
enum nl80211_tx_power_setting type, int mbm);
int (*get_tx_power)(struct wiphy *wiphy, struct wireless_dev *wdev,
int *dbm);

2
package/mac80211/patches/530-ath9k_extra_leds.patch
View File

@ -162,7 +162,7 @@
void ath_fill_led_pin(struct ath_softc *sc)
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -891,7 +891,7 @@ int ath9k_init_device(u16 devid, struct
@@ -893,7 +893,7 @@ int ath9k_init_device(u16 devid, struct
#ifdef CONFIG_MAC80211_LEDS
/* must be initialized before ieee80211_register_hw */

8
package/network/utils/iw/patches/001-nl80211_h_sync.patch
View File

@ -30,3 +30,11 @@
/* keep last */
__NL80211_STA_INFO_AFTER_LAST,
@@ -2424,6 +2429,7 @@ enum nl80211_mntr_flags {
NL80211_MNTR_FLAG_CONTROL,
NL80211_MNTR_FLAG_OTHER_BSS,
NL80211_MNTR_FLAG_COOK_FRAMES,
+ NL80211_MNTR_FLAG_ACTIVE,
/* keep last */
__NL80211_MNTR_FLAG_AFTER_LAST,

20
package/network/utils/iw/patches/130-monitor_active.patch Normal file
View File

@ -0,0 +1,20 @@
--- a/interface.c
+++ b/interface.c
@@ -16,7 +16,8 @@
"fcsfail: show frames with FCS errors\n"\
"control: show control frames\n"\
"otherbss: show frames from other BSSes\n"\
- "cook: use cooked mode"
+ "cook: use cooked mode\n"\
+ "active: use active mode (ACK incoming unicast packets)"
SECTION(interface);
@@ -27,6 +28,7 @@ static char *mntr_flags[NL80211_MNTR_FLA
"control",
"otherbss",
"cook",
+ "active",
};
static int parse_mntr_flags(int *_argc, char ***_argv,