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![Jiri Pirko](/assets/img/avatar_default.png)
Force dev_alloc_name() to be called from register_netdevice() by
dev_get_valid_name(). That allows to remove multiple explicit
dev_alloc_name() calls.
The possibility to call dev_alloc_name in advance remains.
This also fixes veth creation regresion caused by
84c49d8c3e
Signed-off-by: Jiri Pirko <jpirko@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
1550 lines
41 KiB
C
1550 lines
41 KiB
C
/*
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* mac80211_hwsim - software simulator of 802.11 radio(s) for mac80211
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* Copyright (c) 2008, Jouni Malinen <j@w1.fi>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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/*
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* TODO:
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* - Add TSF sync and fix IBSS beacon transmission by adding
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* competition for "air time" at TBTT
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* - RX filtering based on filter configuration (data->rx_filter)
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*/
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#include <linux/list.h>
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#include <linux/slab.h>
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#include <linux/spinlock.h>
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#include <net/dst.h>
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#include <net/xfrm.h>
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#include <net/mac80211.h>
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#include <net/ieee80211_radiotap.h>
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#include <linux/if_arp.h>
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#include <linux/rtnetlink.h>
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#include <linux/etherdevice.h>
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#include <linux/debugfs.h>
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MODULE_AUTHOR("Jouni Malinen");
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MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211");
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MODULE_LICENSE("GPL");
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static int radios = 2;
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module_param(radios, int, 0444);
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MODULE_PARM_DESC(radios, "Number of simulated radios");
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static bool fake_hw_scan;
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module_param(fake_hw_scan, bool, 0444);
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MODULE_PARM_DESC(fake_hw_scan, "Install fake (no-op) hw-scan handler");
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/**
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* enum hwsim_regtest - the type of regulatory tests we offer
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*
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* These are the different values you can use for the regtest
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* module parameter. This is useful to help test world roaming
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* and the driver regulatory_hint() call and combinations of these.
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* If you want to do specific alpha2 regulatory domain tests simply
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* use the userspace regulatory request as that will be respected as
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* well without the need of this module parameter. This is designed
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* only for testing the driver regulatory request, world roaming
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* and all possible combinations.
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*
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* @HWSIM_REGTEST_DISABLED: No regulatory tests are performed,
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* this is the default value.
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* @HWSIM_REGTEST_DRIVER_REG_FOLLOW: Used for testing the driver regulatory
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* hint, only one driver regulatory hint will be sent as such the
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* secondary radios are expected to follow.
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* @HWSIM_REGTEST_DRIVER_REG_ALL: Used for testing the driver regulatory
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* request with all radios reporting the same regulatory domain.
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* @HWSIM_REGTEST_DIFF_COUNTRY: Used for testing the drivers calling
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* different regulatory domains requests. Expected behaviour is for
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* an intersection to occur but each device will still use their
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* respective regulatory requested domains. Subsequent radios will
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* use the resulting intersection.
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* @HWSIM_REGTEST_WORLD_ROAM: Used for testing the world roaming. We accomplish
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* this by using a custom beacon-capable regulatory domain for the first
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* radio. All other device world roam.
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* @HWSIM_REGTEST_CUSTOM_WORLD: Used for testing the custom world regulatory
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* domain requests. All radios will adhere to this custom world regulatory
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* domain.
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* @HWSIM_REGTEST_CUSTOM_WORLD_2: Used for testing 2 custom world regulatory
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* domain requests. The first radio will adhere to the first custom world
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* regulatory domain, the second one to the second custom world regulatory
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* domain. All other devices will world roam.
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* @HWSIM_REGTEST_STRICT_FOLLOW_: Used for testing strict regulatory domain
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* settings, only the first radio will send a regulatory domain request
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* and use strict settings. The rest of the radios are expected to follow.
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* @HWSIM_REGTEST_STRICT_ALL: Used for testing strict regulatory domain
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* settings. All radios will adhere to this.
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* @HWSIM_REGTEST_STRICT_AND_DRIVER_REG: Used for testing strict regulatory
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* domain settings, combined with secondary driver regulatory domain
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* settings. The first radio will get a strict regulatory domain setting
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* using the first driver regulatory request and the second radio will use
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* non-strict settings using the second driver regulatory request. All
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* other devices should follow the intersection created between the
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* first two.
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* @HWSIM_REGTEST_ALL: Used for testing every possible mix. You will need
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* at least 6 radios for a complete test. We will test in this order:
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* 1 - driver custom world regulatory domain
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* 2 - second custom world regulatory domain
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* 3 - first driver regulatory domain request
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* 4 - second driver regulatory domain request
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* 5 - strict regulatory domain settings using the third driver regulatory
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* domain request
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* 6 and on - should follow the intersection of the 3rd, 4rth and 5th radio
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* regulatory requests.
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*/
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enum hwsim_regtest {
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HWSIM_REGTEST_DISABLED = 0,
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HWSIM_REGTEST_DRIVER_REG_FOLLOW = 1,
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HWSIM_REGTEST_DRIVER_REG_ALL = 2,
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HWSIM_REGTEST_DIFF_COUNTRY = 3,
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HWSIM_REGTEST_WORLD_ROAM = 4,
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HWSIM_REGTEST_CUSTOM_WORLD = 5,
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HWSIM_REGTEST_CUSTOM_WORLD_2 = 6,
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HWSIM_REGTEST_STRICT_FOLLOW = 7,
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HWSIM_REGTEST_STRICT_ALL = 8,
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HWSIM_REGTEST_STRICT_AND_DRIVER_REG = 9,
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HWSIM_REGTEST_ALL = 10,
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};
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/* Set to one of the HWSIM_REGTEST_* values above */
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static int regtest = HWSIM_REGTEST_DISABLED;
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module_param(regtest, int, 0444);
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MODULE_PARM_DESC(regtest, "The type of regulatory test we want to run");
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static const char *hwsim_alpha2s[] = {
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"FI",
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"AL",
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"US",
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"DE",
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"JP",
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"AL",
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};
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static const struct ieee80211_regdomain hwsim_world_regdom_custom_01 = {
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.n_reg_rules = 4,
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.alpha2 = "99",
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.reg_rules = {
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REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
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REG_RULE(2484-10, 2484+10, 40, 0, 20, 0),
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REG_RULE(5150-10, 5240+10, 40, 0, 30, 0),
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REG_RULE(5745-10, 5825+10, 40, 0, 30, 0),
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}
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};
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static const struct ieee80211_regdomain hwsim_world_regdom_custom_02 = {
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.n_reg_rules = 2,
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.alpha2 = "99",
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.reg_rules = {
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REG_RULE(2412-10, 2462+10, 40, 0, 20, 0),
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REG_RULE(5725-10, 5850+10, 40, 0, 30,
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NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS),
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}
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};
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struct hwsim_vif_priv {
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u32 magic;
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u8 bssid[ETH_ALEN];
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bool assoc;
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u16 aid;
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};
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#define HWSIM_VIF_MAGIC 0x69537748
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static inline void hwsim_check_magic(struct ieee80211_vif *vif)
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{
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struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
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WARN_ON(vp->magic != HWSIM_VIF_MAGIC);
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}
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static inline void hwsim_set_magic(struct ieee80211_vif *vif)
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{
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struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
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vp->magic = HWSIM_VIF_MAGIC;
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}
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static inline void hwsim_clear_magic(struct ieee80211_vif *vif)
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{
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struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
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vp->magic = 0;
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}
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struct hwsim_sta_priv {
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u32 magic;
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};
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#define HWSIM_STA_MAGIC 0x6d537748
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static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta)
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{
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struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
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WARN_ON(sp->magic != HWSIM_STA_MAGIC);
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}
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static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta)
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{
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struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
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sp->magic = HWSIM_STA_MAGIC;
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}
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static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta)
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{
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struct hwsim_sta_priv *sp = (void *)sta->drv_priv;
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sp->magic = 0;
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}
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static struct class *hwsim_class;
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static struct net_device *hwsim_mon; /* global monitor netdev */
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#define CHAN2G(_freq) { \
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.band = IEEE80211_BAND_2GHZ, \
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.center_freq = (_freq), \
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.hw_value = (_freq), \
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.max_power = 20, \
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}
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#define CHAN5G(_freq) { \
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.band = IEEE80211_BAND_5GHZ, \
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.center_freq = (_freq), \
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.hw_value = (_freq), \
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.max_power = 20, \
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}
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static const struct ieee80211_channel hwsim_channels_2ghz[] = {
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CHAN2G(2412), /* Channel 1 */
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CHAN2G(2417), /* Channel 2 */
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CHAN2G(2422), /* Channel 3 */
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CHAN2G(2427), /* Channel 4 */
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CHAN2G(2432), /* Channel 5 */
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CHAN2G(2437), /* Channel 6 */
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CHAN2G(2442), /* Channel 7 */
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CHAN2G(2447), /* Channel 8 */
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CHAN2G(2452), /* Channel 9 */
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CHAN2G(2457), /* Channel 10 */
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CHAN2G(2462), /* Channel 11 */
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CHAN2G(2467), /* Channel 12 */
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CHAN2G(2472), /* Channel 13 */
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CHAN2G(2484), /* Channel 14 */
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};
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static const struct ieee80211_channel hwsim_channels_5ghz[] = {
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CHAN5G(5180), /* Channel 36 */
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CHAN5G(5200), /* Channel 40 */
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CHAN5G(5220), /* Channel 44 */
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CHAN5G(5240), /* Channel 48 */
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CHAN5G(5260), /* Channel 52 */
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CHAN5G(5280), /* Channel 56 */
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CHAN5G(5300), /* Channel 60 */
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CHAN5G(5320), /* Channel 64 */
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CHAN5G(5500), /* Channel 100 */
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CHAN5G(5520), /* Channel 104 */
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CHAN5G(5540), /* Channel 108 */
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CHAN5G(5560), /* Channel 112 */
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CHAN5G(5580), /* Channel 116 */
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CHAN5G(5600), /* Channel 120 */
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CHAN5G(5620), /* Channel 124 */
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CHAN5G(5640), /* Channel 128 */
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CHAN5G(5660), /* Channel 132 */
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CHAN5G(5680), /* Channel 136 */
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CHAN5G(5700), /* Channel 140 */
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CHAN5G(5745), /* Channel 149 */
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CHAN5G(5765), /* Channel 153 */
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CHAN5G(5785), /* Channel 157 */
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CHAN5G(5805), /* Channel 161 */
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CHAN5G(5825), /* Channel 165 */
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};
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static const struct ieee80211_rate hwsim_rates[] = {
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{ .bitrate = 10 },
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{ .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
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{ .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
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{ .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE },
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{ .bitrate = 60 },
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{ .bitrate = 90 },
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{ .bitrate = 120 },
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{ .bitrate = 180 },
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{ .bitrate = 240 },
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{ .bitrate = 360 },
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{ .bitrate = 480 },
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{ .bitrate = 540 }
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};
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static spinlock_t hwsim_radio_lock;
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static struct list_head hwsim_radios;
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struct mac80211_hwsim_data {
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struct list_head list;
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struct ieee80211_hw *hw;
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struct device *dev;
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struct ieee80211_supported_band bands[2];
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struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)];
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struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)];
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struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
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struct mac_address addresses[2];
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struct ieee80211_channel *channel;
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unsigned long beacon_int; /* in jiffies unit */
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unsigned int rx_filter;
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bool started, idle, scanning;
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struct mutex mutex;
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struct timer_list beacon_timer;
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enum ps_mode {
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PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL
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} ps;
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bool ps_poll_pending;
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struct dentry *debugfs;
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struct dentry *debugfs_ps;
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/*
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* Only radios in the same group can communicate together (the
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* channel has to match too). Each bit represents a group. A
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* radio can be in more then one group.
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*/
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u64 group;
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struct dentry *debugfs_group;
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int power_level;
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};
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struct hwsim_radiotap_hdr {
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struct ieee80211_radiotap_header hdr;
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u8 rt_flags;
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u8 rt_rate;
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__le16 rt_channel;
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__le16 rt_chbitmask;
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} __packed;
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static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb,
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struct net_device *dev)
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{
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/* TODO: allow packet injection */
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dev_kfree_skb(skb);
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return NETDEV_TX_OK;
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}
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static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw,
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struct sk_buff *tx_skb)
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{
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struct mac80211_hwsim_data *data = hw->priv;
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struct sk_buff *skb;
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struct hwsim_radiotap_hdr *hdr;
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u16 flags;
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struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb);
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struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info);
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if (!netif_running(hwsim_mon))
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return;
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skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC);
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if (skb == NULL)
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return;
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hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr));
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hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
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hdr->hdr.it_pad = 0;
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hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
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hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
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(1 << IEEE80211_RADIOTAP_RATE) |
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(1 << IEEE80211_RADIOTAP_CHANNEL));
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hdr->rt_flags = 0;
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hdr->rt_rate = txrate->bitrate / 5;
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hdr->rt_channel = cpu_to_le16(data->channel->center_freq);
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flags = IEEE80211_CHAN_2GHZ;
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if (txrate->flags & IEEE80211_RATE_ERP_G)
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flags |= IEEE80211_CHAN_OFDM;
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else
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flags |= IEEE80211_CHAN_CCK;
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hdr->rt_chbitmask = cpu_to_le16(flags);
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skb->dev = hwsim_mon;
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skb_set_mac_header(skb, 0);
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skb->ip_summed = CHECKSUM_UNNECESSARY;
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skb->pkt_type = PACKET_OTHERHOST;
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skb->protocol = htons(ETH_P_802_2);
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memset(skb->cb, 0, sizeof(skb->cb));
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netif_rx(skb);
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}
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static void mac80211_hwsim_monitor_ack(struct ieee80211_hw *hw, const u8 *addr)
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{
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struct mac80211_hwsim_data *data = hw->priv;
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struct sk_buff *skb;
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struct hwsim_radiotap_hdr *hdr;
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u16 flags;
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struct ieee80211_hdr *hdr11;
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if (!netif_running(hwsim_mon))
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return;
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skb = dev_alloc_skb(100);
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if (skb == NULL)
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return;
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hdr = (struct hwsim_radiotap_hdr *) skb_put(skb, sizeof(*hdr));
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hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION;
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hdr->hdr.it_pad = 0;
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hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr));
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hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) |
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(1 << IEEE80211_RADIOTAP_CHANNEL));
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hdr->rt_flags = 0;
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hdr->rt_rate = 0;
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hdr->rt_channel = cpu_to_le16(data->channel->center_freq);
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flags = IEEE80211_CHAN_2GHZ;
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hdr->rt_chbitmask = cpu_to_le16(flags);
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hdr11 = (struct ieee80211_hdr *) skb_put(skb, 10);
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hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
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IEEE80211_STYPE_ACK);
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hdr11->duration_id = cpu_to_le16(0);
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memcpy(hdr11->addr1, addr, ETH_ALEN);
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skb->dev = hwsim_mon;
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skb_set_mac_header(skb, 0);
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skb->ip_summed = CHECKSUM_UNNECESSARY;
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skb->pkt_type = PACKET_OTHERHOST;
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skb->protocol = htons(ETH_P_802_2);
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memset(skb->cb, 0, sizeof(skb->cb));
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netif_rx(skb);
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}
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static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data,
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struct sk_buff *skb)
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{
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switch (data->ps) {
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case PS_DISABLED:
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return true;
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case PS_ENABLED:
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return false;
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case PS_AUTO_POLL:
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/* TODO: accept (some) Beacons by default and other frames only
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* if pending PS-Poll has been sent */
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return true;
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case PS_MANUAL_POLL:
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/* Allow unicast frames to own address if there is a pending
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* PS-Poll */
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if (data->ps_poll_pending &&
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memcmp(data->hw->wiphy->perm_addr, skb->data + 4,
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ETH_ALEN) == 0) {
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data->ps_poll_pending = false;
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return true;
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}
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return false;
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}
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return true;
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}
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struct mac80211_hwsim_addr_match_data {
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bool ret;
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const u8 *addr;
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};
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static void mac80211_hwsim_addr_iter(void *data, u8 *mac,
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struct ieee80211_vif *vif)
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{
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struct mac80211_hwsim_addr_match_data *md = data;
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|
if (memcmp(mac, md->addr, ETH_ALEN) == 0)
|
|
md->ret = true;
|
|
}
|
|
|
|
|
|
static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data,
|
|
const u8 *addr)
|
|
{
|
|
struct mac80211_hwsim_addr_match_data md;
|
|
|
|
if (memcmp(addr, data->hw->wiphy->perm_addr, ETH_ALEN) == 0)
|
|
return true;
|
|
|
|
md.ret = false;
|
|
md.addr = addr;
|
|
ieee80211_iterate_active_interfaces_atomic(data->hw,
|
|
mac80211_hwsim_addr_iter,
|
|
&md);
|
|
|
|
return md.ret;
|
|
}
|
|
|
|
|
|
static bool mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
|
|
struct sk_buff *skb)
|
|
{
|
|
struct mac80211_hwsim_data *data = hw->priv, *data2;
|
|
bool ack = false;
|
|
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
|
|
struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
|
|
struct ieee80211_rx_status rx_status;
|
|
|
|
if (data->idle) {
|
|
wiphy_debug(hw->wiphy, "Trying to TX when idle - reject\n");
|
|
return false;
|
|
}
|
|
|
|
memset(&rx_status, 0, sizeof(rx_status));
|
|
/* TODO: set mactime */
|
|
rx_status.freq = data->channel->center_freq;
|
|
rx_status.band = data->channel->band;
|
|
rx_status.rate_idx = info->control.rates[0].idx;
|
|
/* TODO: simulate real signal strength (and optional packet loss) */
|
|
rx_status.signal = data->power_level - 50;
|
|
|
|
if (data->ps != PS_DISABLED)
|
|
hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
|
|
|
|
/* release the skb's source info */
|
|
skb_orphan(skb);
|
|
skb_dst_drop(skb);
|
|
skb->mark = 0;
|
|
secpath_reset(skb);
|
|
nf_reset(skb);
|
|
|
|
/* Copy skb to all enabled radios that are on the current frequency */
|
|
spin_lock(&hwsim_radio_lock);
|
|
list_for_each_entry(data2, &hwsim_radios, list) {
|
|
struct sk_buff *nskb;
|
|
|
|
if (data == data2)
|
|
continue;
|
|
|
|
if (data2->idle || !data2->started ||
|
|
!hwsim_ps_rx_ok(data2, skb) ||
|
|
!data->channel || !data2->channel ||
|
|
data->channel->center_freq != data2->channel->center_freq ||
|
|
!(data->group & data2->group))
|
|
continue;
|
|
|
|
nskb = skb_copy(skb, GFP_ATOMIC);
|
|
if (nskb == NULL)
|
|
continue;
|
|
|
|
if (mac80211_hwsim_addr_match(data2, hdr->addr1))
|
|
ack = true;
|
|
memcpy(IEEE80211_SKB_RXCB(nskb), &rx_status, sizeof(rx_status));
|
|
ieee80211_rx_irqsafe(data2->hw, nskb);
|
|
}
|
|
spin_unlock(&hwsim_radio_lock);
|
|
|
|
return ack;
|
|
}
|
|
|
|
|
|
static void mac80211_hwsim_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
|
|
{
|
|
bool ack;
|
|
struct ieee80211_tx_info *txi;
|
|
|
|
mac80211_hwsim_monitor_rx(hw, skb);
|
|
|
|
if (skb->len < 10) {
|
|
/* Should not happen; just a sanity check for addr1 use */
|
|
dev_kfree_skb(skb);
|
|
return;
|
|
}
|
|
|
|
ack = mac80211_hwsim_tx_frame(hw, skb);
|
|
if (ack && skb->len >= 16) {
|
|
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
|
|
mac80211_hwsim_monitor_ack(hw, hdr->addr2);
|
|
}
|
|
|
|
txi = IEEE80211_SKB_CB(skb);
|
|
|
|
if (txi->control.vif)
|
|
hwsim_check_magic(txi->control.vif);
|
|
if (txi->control.sta)
|
|
hwsim_check_sta_magic(txi->control.sta);
|
|
|
|
ieee80211_tx_info_clear_status(txi);
|
|
if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
|
|
txi->flags |= IEEE80211_TX_STAT_ACK;
|
|
ieee80211_tx_status_irqsafe(hw, skb);
|
|
}
|
|
|
|
|
|
static int mac80211_hwsim_start(struct ieee80211_hw *hw)
|
|
{
|
|
struct mac80211_hwsim_data *data = hw->priv;
|
|
wiphy_debug(hw->wiphy, "%s\n", __func__);
|
|
data->started = 1;
|
|
return 0;
|
|
}
|
|
|
|
|
|
static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
|
|
{
|
|
struct mac80211_hwsim_data *data = hw->priv;
|
|
data->started = 0;
|
|
del_timer(&data->beacon_timer);
|
|
wiphy_debug(hw->wiphy, "%s\n", __func__);
|
|
}
|
|
|
|
|
|
static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif)
|
|
{
|
|
wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
|
|
__func__, ieee80211_vif_type_p2p(vif),
|
|
vif->addr);
|
|
hwsim_set_magic(vif);
|
|
return 0;
|
|
}
|
|
|
|
|
|
static int mac80211_hwsim_change_interface(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif,
|
|
enum nl80211_iftype newtype,
|
|
bool newp2p)
|
|
{
|
|
newtype = ieee80211_iftype_p2p(newtype, newp2p);
|
|
wiphy_debug(hw->wiphy,
|
|
"%s (old type=%d, new type=%d, mac_addr=%pM)\n",
|
|
__func__, ieee80211_vif_type_p2p(vif),
|
|
newtype, vif->addr);
|
|
hwsim_check_magic(vif);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void mac80211_hwsim_remove_interface(
|
|
struct ieee80211_hw *hw, struct ieee80211_vif *vif)
|
|
{
|
|
wiphy_debug(hw->wiphy, "%s (type=%d mac_addr=%pM)\n",
|
|
__func__, ieee80211_vif_type_p2p(vif),
|
|
vif->addr);
|
|
hwsim_check_magic(vif);
|
|
hwsim_clear_magic(vif);
|
|
}
|
|
|
|
|
|
static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
|
|
struct ieee80211_vif *vif)
|
|
{
|
|
struct ieee80211_hw *hw = arg;
|
|
struct sk_buff *skb;
|
|
struct ieee80211_tx_info *info;
|
|
|
|
hwsim_check_magic(vif);
|
|
|
|
if (vif->type != NL80211_IFTYPE_AP &&
|
|
vif->type != NL80211_IFTYPE_MESH_POINT &&
|
|
vif->type != NL80211_IFTYPE_ADHOC)
|
|
return;
|
|
|
|
skb = ieee80211_beacon_get(hw, vif);
|
|
if (skb == NULL)
|
|
return;
|
|
info = IEEE80211_SKB_CB(skb);
|
|
|
|
mac80211_hwsim_monitor_rx(hw, skb);
|
|
mac80211_hwsim_tx_frame(hw, skb);
|
|
dev_kfree_skb(skb);
|
|
}
|
|
|
|
|
|
static void mac80211_hwsim_beacon(unsigned long arg)
|
|
{
|
|
struct ieee80211_hw *hw = (struct ieee80211_hw *) arg;
|
|
struct mac80211_hwsim_data *data = hw->priv;
|
|
|
|
if (!data->started)
|
|
return;
|
|
|
|
ieee80211_iterate_active_interfaces_atomic(
|
|
hw, mac80211_hwsim_beacon_tx, hw);
|
|
|
|
data->beacon_timer.expires = jiffies + data->beacon_int;
|
|
add_timer(&data->beacon_timer);
|
|
}
|
|
|
|
static const char *hwsim_chantypes[] = {
|
|
[NL80211_CHAN_NO_HT] = "noht",
|
|
[NL80211_CHAN_HT20] = "ht20",
|
|
[NL80211_CHAN_HT40MINUS] = "ht40-",
|
|
[NL80211_CHAN_HT40PLUS] = "ht40+",
|
|
};
|
|
|
|
static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
|
|
{
|
|
struct mac80211_hwsim_data *data = hw->priv;
|
|
struct ieee80211_conf *conf = &hw->conf;
|
|
static const char *smps_modes[IEEE80211_SMPS_NUM_MODES] = {
|
|
[IEEE80211_SMPS_AUTOMATIC] = "auto",
|
|
[IEEE80211_SMPS_OFF] = "off",
|
|
[IEEE80211_SMPS_STATIC] = "static",
|
|
[IEEE80211_SMPS_DYNAMIC] = "dynamic",
|
|
};
|
|
|
|
wiphy_debug(hw->wiphy,
|
|
"%s (freq=%d/%s idle=%d ps=%d smps=%s)\n",
|
|
__func__,
|
|
conf->channel->center_freq,
|
|
hwsim_chantypes[conf->channel_type],
|
|
!!(conf->flags & IEEE80211_CONF_IDLE),
|
|
!!(conf->flags & IEEE80211_CONF_PS),
|
|
smps_modes[conf->smps_mode]);
|
|
|
|
data->idle = !!(conf->flags & IEEE80211_CONF_IDLE);
|
|
|
|
data->channel = conf->channel;
|
|
data->power_level = conf->power_level;
|
|
if (!data->started || !data->beacon_int)
|
|
del_timer(&data->beacon_timer);
|
|
else
|
|
mod_timer(&data->beacon_timer, jiffies + data->beacon_int);
|
|
|
|
return 0;
|
|
}
|
|
|
|
|
|
static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
|
|
unsigned int changed_flags,
|
|
unsigned int *total_flags,u64 multicast)
|
|
{
|
|
struct mac80211_hwsim_data *data = hw->priv;
|
|
|
|
wiphy_debug(hw->wiphy, "%s\n", __func__);
|
|
|
|
data->rx_filter = 0;
|
|
if (*total_flags & FIF_PROMISC_IN_BSS)
|
|
data->rx_filter |= FIF_PROMISC_IN_BSS;
|
|
if (*total_flags & FIF_ALLMULTI)
|
|
data->rx_filter |= FIF_ALLMULTI;
|
|
|
|
*total_flags = data->rx_filter;
|
|
}
|
|
|
|
static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif,
|
|
struct ieee80211_bss_conf *info,
|
|
u32 changed)
|
|
{
|
|
struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
|
|
struct mac80211_hwsim_data *data = hw->priv;
|
|
|
|
hwsim_check_magic(vif);
|
|
|
|
wiphy_debug(hw->wiphy, "%s(changed=0x%x)\n", __func__, changed);
|
|
|
|
if (changed & BSS_CHANGED_BSSID) {
|
|
wiphy_debug(hw->wiphy, "%s: BSSID changed: %pM\n",
|
|
__func__, info->bssid);
|
|
memcpy(vp->bssid, info->bssid, ETH_ALEN);
|
|
}
|
|
|
|
if (changed & BSS_CHANGED_ASSOC) {
|
|
wiphy_debug(hw->wiphy, " ASSOC: assoc=%d aid=%d\n",
|
|
info->assoc, info->aid);
|
|
vp->assoc = info->assoc;
|
|
vp->aid = info->aid;
|
|
}
|
|
|
|
if (changed & BSS_CHANGED_BEACON_INT) {
|
|
wiphy_debug(hw->wiphy, " BCNINT: %d\n", info->beacon_int);
|
|
data->beacon_int = 1024 * info->beacon_int / 1000 * HZ / 1000;
|
|
if (WARN_ON(!data->beacon_int))
|
|
data->beacon_int = 1;
|
|
if (data->started)
|
|
mod_timer(&data->beacon_timer,
|
|
jiffies + data->beacon_int);
|
|
}
|
|
|
|
if (changed & BSS_CHANGED_ERP_CTS_PROT) {
|
|
wiphy_debug(hw->wiphy, " ERP_CTS_PROT: %d\n",
|
|
info->use_cts_prot);
|
|
}
|
|
|
|
if (changed & BSS_CHANGED_ERP_PREAMBLE) {
|
|
wiphy_debug(hw->wiphy, " ERP_PREAMBLE: %d\n",
|
|
info->use_short_preamble);
|
|
}
|
|
|
|
if (changed & BSS_CHANGED_ERP_SLOT) {
|
|
wiphy_debug(hw->wiphy, " ERP_SLOT: %d\n", info->use_short_slot);
|
|
}
|
|
|
|
if (changed & BSS_CHANGED_HT) {
|
|
wiphy_debug(hw->wiphy, " HT: op_mode=0x%x, chantype=%s\n",
|
|
info->ht_operation_mode,
|
|
hwsim_chantypes[info->channel_type]);
|
|
}
|
|
|
|
if (changed & BSS_CHANGED_BASIC_RATES) {
|
|
wiphy_debug(hw->wiphy, " BASIC_RATES: 0x%llx\n",
|
|
(unsigned long long) info->basic_rates);
|
|
}
|
|
}
|
|
|
|
static int mac80211_hwsim_sta_add(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif,
|
|
struct ieee80211_sta *sta)
|
|
{
|
|
hwsim_check_magic(vif);
|
|
hwsim_set_sta_magic(sta);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int mac80211_hwsim_sta_remove(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif,
|
|
struct ieee80211_sta *sta)
|
|
{
|
|
hwsim_check_magic(vif);
|
|
hwsim_clear_sta_magic(sta);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void mac80211_hwsim_sta_notify(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif,
|
|
enum sta_notify_cmd cmd,
|
|
struct ieee80211_sta *sta)
|
|
{
|
|
hwsim_check_magic(vif);
|
|
|
|
switch (cmd) {
|
|
case STA_NOTIFY_SLEEP:
|
|
case STA_NOTIFY_AWAKE:
|
|
/* TODO: make good use of these flags */
|
|
break;
|
|
default:
|
|
WARN(1, "Invalid sta notify: %d\n", cmd);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static int mac80211_hwsim_set_tim(struct ieee80211_hw *hw,
|
|
struct ieee80211_sta *sta,
|
|
bool set)
|
|
{
|
|
hwsim_check_sta_magic(sta);
|
|
return 0;
|
|
}
|
|
|
|
static int mac80211_hwsim_conf_tx(
|
|
struct ieee80211_hw *hw, u16 queue,
|
|
const struct ieee80211_tx_queue_params *params)
|
|
{
|
|
wiphy_debug(hw->wiphy,
|
|
"%s (queue=%d txop=%d cw_min=%d cw_max=%d aifs=%d)\n",
|
|
__func__, queue,
|
|
params->txop, params->cw_min,
|
|
params->cw_max, params->aifs);
|
|
return 0;
|
|
}
|
|
|
|
static int mac80211_hwsim_get_survey(
|
|
struct ieee80211_hw *hw, int idx,
|
|
struct survey_info *survey)
|
|
{
|
|
struct ieee80211_conf *conf = &hw->conf;
|
|
|
|
wiphy_debug(hw->wiphy, "%s (idx=%d)\n", __func__, idx);
|
|
|
|
if (idx != 0)
|
|
return -ENOENT;
|
|
|
|
/* Current channel */
|
|
survey->channel = conf->channel;
|
|
|
|
/*
|
|
* Magically conjured noise level --- this is only ok for simulated hardware.
|
|
*
|
|
* A real driver which cannot determine the real channel noise MUST NOT
|
|
* report any noise, especially not a magically conjured one :-)
|
|
*/
|
|
survey->filled = SURVEY_INFO_NOISE_DBM;
|
|
survey->noise = -92;
|
|
|
|
return 0;
|
|
}
|
|
|
|
#ifdef CONFIG_NL80211_TESTMODE
|
|
/*
|
|
* This section contains example code for using netlink
|
|
* attributes with the testmode command in nl80211.
|
|
*/
|
|
|
|
/* These enums need to be kept in sync with userspace */
|
|
enum hwsim_testmode_attr {
|
|
__HWSIM_TM_ATTR_INVALID = 0,
|
|
HWSIM_TM_ATTR_CMD = 1,
|
|
HWSIM_TM_ATTR_PS = 2,
|
|
|
|
/* keep last */
|
|
__HWSIM_TM_ATTR_AFTER_LAST,
|
|
HWSIM_TM_ATTR_MAX = __HWSIM_TM_ATTR_AFTER_LAST - 1
|
|
};
|
|
|
|
enum hwsim_testmode_cmd {
|
|
HWSIM_TM_CMD_SET_PS = 0,
|
|
HWSIM_TM_CMD_GET_PS = 1,
|
|
};
|
|
|
|
static const struct nla_policy hwsim_testmode_policy[HWSIM_TM_ATTR_MAX + 1] = {
|
|
[HWSIM_TM_ATTR_CMD] = { .type = NLA_U32 },
|
|
[HWSIM_TM_ATTR_PS] = { .type = NLA_U32 },
|
|
};
|
|
|
|
static int hwsim_fops_ps_write(void *dat, u64 val);
|
|
|
|
static int mac80211_hwsim_testmode_cmd(struct ieee80211_hw *hw,
|
|
void *data, int len)
|
|
{
|
|
struct mac80211_hwsim_data *hwsim = hw->priv;
|
|
struct nlattr *tb[HWSIM_TM_ATTR_MAX + 1];
|
|
struct sk_buff *skb;
|
|
int err, ps;
|
|
|
|
err = nla_parse(tb, HWSIM_TM_ATTR_MAX, data, len,
|
|
hwsim_testmode_policy);
|
|
if (err)
|
|
return err;
|
|
|
|
if (!tb[HWSIM_TM_ATTR_CMD])
|
|
return -EINVAL;
|
|
|
|
switch (nla_get_u32(tb[HWSIM_TM_ATTR_CMD])) {
|
|
case HWSIM_TM_CMD_SET_PS:
|
|
if (!tb[HWSIM_TM_ATTR_PS])
|
|
return -EINVAL;
|
|
ps = nla_get_u32(tb[HWSIM_TM_ATTR_PS]);
|
|
return hwsim_fops_ps_write(hwsim, ps);
|
|
case HWSIM_TM_CMD_GET_PS:
|
|
skb = cfg80211_testmode_alloc_reply_skb(hw->wiphy,
|
|
nla_total_size(sizeof(u32)));
|
|
if (!skb)
|
|
return -ENOMEM;
|
|
NLA_PUT_U32(skb, HWSIM_TM_ATTR_PS, hwsim->ps);
|
|
return cfg80211_testmode_reply(skb);
|
|
default:
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
nla_put_failure:
|
|
kfree_skb(skb);
|
|
return -ENOBUFS;
|
|
}
|
|
#endif
|
|
|
|
static int mac80211_hwsim_ampdu_action(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif,
|
|
enum ieee80211_ampdu_mlme_action action,
|
|
struct ieee80211_sta *sta, u16 tid, u16 *ssn,
|
|
u8 buf_size)
|
|
{
|
|
switch (action) {
|
|
case IEEE80211_AMPDU_TX_START:
|
|
ieee80211_start_tx_ba_cb_irqsafe(vif, sta->addr, tid);
|
|
break;
|
|
case IEEE80211_AMPDU_TX_STOP:
|
|
ieee80211_stop_tx_ba_cb_irqsafe(vif, sta->addr, tid);
|
|
break;
|
|
case IEEE80211_AMPDU_TX_OPERATIONAL:
|
|
break;
|
|
case IEEE80211_AMPDU_RX_START:
|
|
case IEEE80211_AMPDU_RX_STOP:
|
|
break;
|
|
default:
|
|
return -EOPNOTSUPP;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void mac80211_hwsim_flush(struct ieee80211_hw *hw, bool drop)
|
|
{
|
|
/*
|
|
* In this special case, there's nothing we need to
|
|
* do because hwsim does transmission synchronously.
|
|
* In the future, when it does transmissions via
|
|
* userspace, we may need to do something.
|
|
*/
|
|
}
|
|
|
|
struct hw_scan_done {
|
|
struct delayed_work w;
|
|
struct ieee80211_hw *hw;
|
|
};
|
|
|
|
static void hw_scan_done(struct work_struct *work)
|
|
{
|
|
struct hw_scan_done *hsd =
|
|
container_of(work, struct hw_scan_done, w.work);
|
|
|
|
ieee80211_scan_completed(hsd->hw, false);
|
|
kfree(hsd);
|
|
}
|
|
|
|
static int mac80211_hwsim_hw_scan(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif,
|
|
struct cfg80211_scan_request *req)
|
|
{
|
|
struct hw_scan_done *hsd = kzalloc(sizeof(*hsd), GFP_KERNEL);
|
|
int i;
|
|
|
|
if (!hsd)
|
|
return -ENOMEM;
|
|
|
|
hsd->hw = hw;
|
|
INIT_DELAYED_WORK(&hsd->w, hw_scan_done);
|
|
|
|
printk(KERN_DEBUG "hwsim hw_scan request\n");
|
|
for (i = 0; i < req->n_channels; i++)
|
|
printk(KERN_DEBUG "hwsim hw_scan freq %d\n",
|
|
req->channels[i]->center_freq);
|
|
|
|
ieee80211_queue_delayed_work(hw, &hsd->w, 2 * HZ);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void mac80211_hwsim_sw_scan(struct ieee80211_hw *hw)
|
|
{
|
|
struct mac80211_hwsim_data *hwsim = hw->priv;
|
|
|
|
mutex_lock(&hwsim->mutex);
|
|
|
|
if (hwsim->scanning) {
|
|
printk(KERN_DEBUG "two hwsim sw_scans detected!\n");
|
|
goto out;
|
|
}
|
|
|
|
printk(KERN_DEBUG "hwsim sw_scan request, prepping stuff\n");
|
|
hwsim->scanning = true;
|
|
|
|
out:
|
|
mutex_unlock(&hwsim->mutex);
|
|
}
|
|
|
|
static void mac80211_hwsim_sw_scan_complete(struct ieee80211_hw *hw)
|
|
{
|
|
struct mac80211_hwsim_data *hwsim = hw->priv;
|
|
|
|
mutex_lock(&hwsim->mutex);
|
|
|
|
printk(KERN_DEBUG "hwsim sw_scan_complete\n");
|
|
hwsim->scanning = false;
|
|
|
|
mutex_unlock(&hwsim->mutex);
|
|
}
|
|
|
|
static struct ieee80211_ops mac80211_hwsim_ops =
|
|
{
|
|
.tx = mac80211_hwsim_tx,
|
|
.start = mac80211_hwsim_start,
|
|
.stop = mac80211_hwsim_stop,
|
|
.add_interface = mac80211_hwsim_add_interface,
|
|
.change_interface = mac80211_hwsim_change_interface,
|
|
.remove_interface = mac80211_hwsim_remove_interface,
|
|
.config = mac80211_hwsim_config,
|
|
.configure_filter = mac80211_hwsim_configure_filter,
|
|
.bss_info_changed = mac80211_hwsim_bss_info_changed,
|
|
.sta_add = mac80211_hwsim_sta_add,
|
|
.sta_remove = mac80211_hwsim_sta_remove,
|
|
.sta_notify = mac80211_hwsim_sta_notify,
|
|
.set_tim = mac80211_hwsim_set_tim,
|
|
.conf_tx = mac80211_hwsim_conf_tx,
|
|
.get_survey = mac80211_hwsim_get_survey,
|
|
CFG80211_TESTMODE_CMD(mac80211_hwsim_testmode_cmd)
|
|
.ampdu_action = mac80211_hwsim_ampdu_action,
|
|
.sw_scan_start = mac80211_hwsim_sw_scan,
|
|
.sw_scan_complete = mac80211_hwsim_sw_scan_complete,
|
|
.flush = mac80211_hwsim_flush,
|
|
};
|
|
|
|
|
|
static void mac80211_hwsim_free(void)
|
|
{
|
|
struct list_head tmplist, *i, *tmp;
|
|
struct mac80211_hwsim_data *data, *tmpdata;
|
|
|
|
INIT_LIST_HEAD(&tmplist);
|
|
|
|
spin_lock_bh(&hwsim_radio_lock);
|
|
list_for_each_safe(i, tmp, &hwsim_radios)
|
|
list_move(i, &tmplist);
|
|
spin_unlock_bh(&hwsim_radio_lock);
|
|
|
|
list_for_each_entry_safe(data, tmpdata, &tmplist, list) {
|
|
debugfs_remove(data->debugfs_group);
|
|
debugfs_remove(data->debugfs_ps);
|
|
debugfs_remove(data->debugfs);
|
|
ieee80211_unregister_hw(data->hw);
|
|
device_unregister(data->dev);
|
|
ieee80211_free_hw(data->hw);
|
|
}
|
|
class_destroy(hwsim_class);
|
|
}
|
|
|
|
|
|
static struct device_driver mac80211_hwsim_driver = {
|
|
.name = "mac80211_hwsim"
|
|
};
|
|
|
|
static const struct net_device_ops hwsim_netdev_ops = {
|
|
.ndo_start_xmit = hwsim_mon_xmit,
|
|
.ndo_change_mtu = eth_change_mtu,
|
|
.ndo_set_mac_address = eth_mac_addr,
|
|
.ndo_validate_addr = eth_validate_addr,
|
|
};
|
|
|
|
static void hwsim_mon_setup(struct net_device *dev)
|
|
{
|
|
dev->netdev_ops = &hwsim_netdev_ops;
|
|
dev->destructor = free_netdev;
|
|
ether_setup(dev);
|
|
dev->tx_queue_len = 0;
|
|
dev->type = ARPHRD_IEEE80211_RADIOTAP;
|
|
memset(dev->dev_addr, 0, ETH_ALEN);
|
|
dev->dev_addr[0] = 0x12;
|
|
}
|
|
|
|
|
|
static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif)
|
|
{
|
|
struct mac80211_hwsim_data *data = dat;
|
|
struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
|
|
struct sk_buff *skb;
|
|
struct ieee80211_pspoll *pspoll;
|
|
|
|
if (!vp->assoc)
|
|
return;
|
|
|
|
wiphy_debug(data->hw->wiphy,
|
|
"%s: send PS-Poll to %pM for aid %d\n",
|
|
__func__, vp->bssid, vp->aid);
|
|
|
|
skb = dev_alloc_skb(sizeof(*pspoll));
|
|
if (!skb)
|
|
return;
|
|
pspoll = (void *) skb_put(skb, sizeof(*pspoll));
|
|
pspoll->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL |
|
|
IEEE80211_STYPE_PSPOLL |
|
|
IEEE80211_FCTL_PM);
|
|
pspoll->aid = cpu_to_le16(0xc000 | vp->aid);
|
|
memcpy(pspoll->bssid, vp->bssid, ETH_ALEN);
|
|
memcpy(pspoll->ta, mac, ETH_ALEN);
|
|
if (!mac80211_hwsim_tx_frame(data->hw, skb))
|
|
printk(KERN_DEBUG "%s: PS-Poll frame not ack'ed\n", __func__);
|
|
dev_kfree_skb(skb);
|
|
}
|
|
|
|
|
|
static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac,
|
|
struct ieee80211_vif *vif, int ps)
|
|
{
|
|
struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
|
|
struct sk_buff *skb;
|
|
struct ieee80211_hdr *hdr;
|
|
|
|
if (!vp->assoc)
|
|
return;
|
|
|
|
wiphy_debug(data->hw->wiphy,
|
|
"%s: send data::nullfunc to %pM ps=%d\n",
|
|
__func__, vp->bssid, ps);
|
|
|
|
skb = dev_alloc_skb(sizeof(*hdr));
|
|
if (!skb)
|
|
return;
|
|
hdr = (void *) skb_put(skb, sizeof(*hdr) - ETH_ALEN);
|
|
hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
|
|
IEEE80211_STYPE_NULLFUNC |
|
|
(ps ? IEEE80211_FCTL_PM : 0));
|
|
hdr->duration_id = cpu_to_le16(0);
|
|
memcpy(hdr->addr1, vp->bssid, ETH_ALEN);
|
|
memcpy(hdr->addr2, mac, ETH_ALEN);
|
|
memcpy(hdr->addr3, vp->bssid, ETH_ALEN);
|
|
if (!mac80211_hwsim_tx_frame(data->hw, skb))
|
|
printk(KERN_DEBUG "%s: nullfunc frame not ack'ed\n", __func__);
|
|
dev_kfree_skb(skb);
|
|
}
|
|
|
|
|
|
static void hwsim_send_nullfunc_ps(void *dat, u8 *mac,
|
|
struct ieee80211_vif *vif)
|
|
{
|
|
struct mac80211_hwsim_data *data = dat;
|
|
hwsim_send_nullfunc(data, mac, vif, 1);
|
|
}
|
|
|
|
|
|
static void hwsim_send_nullfunc_no_ps(void *dat, u8 *mac,
|
|
struct ieee80211_vif *vif)
|
|
{
|
|
struct mac80211_hwsim_data *data = dat;
|
|
hwsim_send_nullfunc(data, mac, vif, 0);
|
|
}
|
|
|
|
|
|
static int hwsim_fops_ps_read(void *dat, u64 *val)
|
|
{
|
|
struct mac80211_hwsim_data *data = dat;
|
|
*val = data->ps;
|
|
return 0;
|
|
}
|
|
|
|
static int hwsim_fops_ps_write(void *dat, u64 val)
|
|
{
|
|
struct mac80211_hwsim_data *data = dat;
|
|
enum ps_mode old_ps;
|
|
|
|
if (val != PS_DISABLED && val != PS_ENABLED && val != PS_AUTO_POLL &&
|
|
val != PS_MANUAL_POLL)
|
|
return -EINVAL;
|
|
|
|
old_ps = data->ps;
|
|
data->ps = val;
|
|
|
|
if (val == PS_MANUAL_POLL) {
|
|
ieee80211_iterate_active_interfaces(data->hw,
|
|
hwsim_send_ps_poll, data);
|
|
data->ps_poll_pending = true;
|
|
} else if (old_ps == PS_DISABLED && val != PS_DISABLED) {
|
|
ieee80211_iterate_active_interfaces(data->hw,
|
|
hwsim_send_nullfunc_ps,
|
|
data);
|
|
} else if (old_ps != PS_DISABLED && val == PS_DISABLED) {
|
|
ieee80211_iterate_active_interfaces(data->hw,
|
|
hwsim_send_nullfunc_no_ps,
|
|
data);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
|
|
"%llu\n");
|
|
|
|
|
|
static int hwsim_fops_group_read(void *dat, u64 *val)
|
|
{
|
|
struct mac80211_hwsim_data *data = dat;
|
|
*val = data->group;
|
|
return 0;
|
|
}
|
|
|
|
static int hwsim_fops_group_write(void *dat, u64 val)
|
|
{
|
|
struct mac80211_hwsim_data *data = dat;
|
|
data->group = val;
|
|
return 0;
|
|
}
|
|
|
|
DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
|
|
hwsim_fops_group_read, hwsim_fops_group_write,
|
|
"%llx\n");
|
|
|
|
static int __init init_mac80211_hwsim(void)
|
|
{
|
|
int i, err = 0;
|
|
u8 addr[ETH_ALEN];
|
|
struct mac80211_hwsim_data *data;
|
|
struct ieee80211_hw *hw;
|
|
enum ieee80211_band band;
|
|
|
|
if (radios < 1 || radios > 100)
|
|
return -EINVAL;
|
|
|
|
if (fake_hw_scan) {
|
|
mac80211_hwsim_ops.hw_scan = mac80211_hwsim_hw_scan;
|
|
mac80211_hwsim_ops.sw_scan_start = NULL;
|
|
mac80211_hwsim_ops.sw_scan_complete = NULL;
|
|
}
|
|
|
|
spin_lock_init(&hwsim_radio_lock);
|
|
INIT_LIST_HEAD(&hwsim_radios);
|
|
|
|
hwsim_class = class_create(THIS_MODULE, "mac80211_hwsim");
|
|
if (IS_ERR(hwsim_class))
|
|
return PTR_ERR(hwsim_class);
|
|
|
|
memset(addr, 0, ETH_ALEN);
|
|
addr[0] = 0x02;
|
|
|
|
for (i = 0; i < radios; i++) {
|
|
printk(KERN_DEBUG "mac80211_hwsim: Initializing radio %d\n",
|
|
i);
|
|
hw = ieee80211_alloc_hw(sizeof(*data), &mac80211_hwsim_ops);
|
|
if (!hw) {
|
|
printk(KERN_DEBUG "mac80211_hwsim: ieee80211_alloc_hw "
|
|
"failed\n");
|
|
err = -ENOMEM;
|
|
goto failed;
|
|
}
|
|
data = hw->priv;
|
|
data->hw = hw;
|
|
|
|
data->dev = device_create(hwsim_class, NULL, 0, hw,
|
|
"hwsim%d", i);
|
|
if (IS_ERR(data->dev)) {
|
|
printk(KERN_DEBUG
|
|
"mac80211_hwsim: device_create "
|
|
"failed (%ld)\n", PTR_ERR(data->dev));
|
|
err = -ENOMEM;
|
|
goto failed_drvdata;
|
|
}
|
|
data->dev->driver = &mac80211_hwsim_driver;
|
|
|
|
SET_IEEE80211_DEV(hw, data->dev);
|
|
addr[3] = i >> 8;
|
|
addr[4] = i;
|
|
memcpy(data->addresses[0].addr, addr, ETH_ALEN);
|
|
memcpy(data->addresses[1].addr, addr, ETH_ALEN);
|
|
data->addresses[1].addr[0] |= 0x40;
|
|
hw->wiphy->n_addresses = 2;
|
|
hw->wiphy->addresses = data->addresses;
|
|
|
|
if (fake_hw_scan) {
|
|
hw->wiphy->max_scan_ssids = 255;
|
|
hw->wiphy->max_scan_ie_len = IEEE80211_MAX_DATA_LEN;
|
|
}
|
|
|
|
hw->channel_change_time = 1;
|
|
hw->queues = 4;
|
|
hw->wiphy->interface_modes =
|
|
BIT(NL80211_IFTYPE_STATION) |
|
|
BIT(NL80211_IFTYPE_AP) |
|
|
BIT(NL80211_IFTYPE_P2P_CLIENT) |
|
|
BIT(NL80211_IFTYPE_P2P_GO) |
|
|
BIT(NL80211_IFTYPE_ADHOC) |
|
|
BIT(NL80211_IFTYPE_MESH_POINT);
|
|
|
|
hw->flags = IEEE80211_HW_MFP_CAPABLE |
|
|
IEEE80211_HW_SIGNAL_DBM |
|
|
IEEE80211_HW_SUPPORTS_STATIC_SMPS |
|
|
IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS |
|
|
IEEE80211_HW_AMPDU_AGGREGATION;
|
|
|
|
/* ask mac80211 to reserve space for magic */
|
|
hw->vif_data_size = sizeof(struct hwsim_vif_priv);
|
|
hw->sta_data_size = sizeof(struct hwsim_sta_priv);
|
|
|
|
memcpy(data->channels_2ghz, hwsim_channels_2ghz,
|
|
sizeof(hwsim_channels_2ghz));
|
|
memcpy(data->channels_5ghz, hwsim_channels_5ghz,
|
|
sizeof(hwsim_channels_5ghz));
|
|
memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
|
|
|
|
for (band = IEEE80211_BAND_2GHZ; band < IEEE80211_NUM_BANDS; band++) {
|
|
struct ieee80211_supported_band *sband = &data->bands[band];
|
|
switch (band) {
|
|
case IEEE80211_BAND_2GHZ:
|
|
sband->channels = data->channels_2ghz;
|
|
sband->n_channels =
|
|
ARRAY_SIZE(hwsim_channels_2ghz);
|
|
sband->bitrates = data->rates;
|
|
sband->n_bitrates = ARRAY_SIZE(hwsim_rates);
|
|
break;
|
|
case IEEE80211_BAND_5GHZ:
|
|
sband->channels = data->channels_5ghz;
|
|
sband->n_channels =
|
|
ARRAY_SIZE(hwsim_channels_5ghz);
|
|
sband->bitrates = data->rates + 4;
|
|
sband->n_bitrates = ARRAY_SIZE(hwsim_rates) - 4;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
sband->ht_cap.ht_supported = true;
|
|
sband->ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
|
|
IEEE80211_HT_CAP_GRN_FLD |
|
|
IEEE80211_HT_CAP_SGI_40 |
|
|
IEEE80211_HT_CAP_DSSSCCK40;
|
|
sband->ht_cap.ampdu_factor = 0x3;
|
|
sband->ht_cap.ampdu_density = 0x6;
|
|
memset(&sband->ht_cap.mcs, 0,
|
|
sizeof(sband->ht_cap.mcs));
|
|
sband->ht_cap.mcs.rx_mask[0] = 0xff;
|
|
sband->ht_cap.mcs.rx_mask[1] = 0xff;
|
|
sband->ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
|
|
|
|
hw->wiphy->bands[band] = sband;
|
|
}
|
|
/* By default all radios are belonging to the first group */
|
|
data->group = 1;
|
|
mutex_init(&data->mutex);
|
|
|
|
/* Work to be done prior to ieee80211_register_hw() */
|
|
switch (regtest) {
|
|
case HWSIM_REGTEST_DISABLED:
|
|
case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
|
|
case HWSIM_REGTEST_DRIVER_REG_ALL:
|
|
case HWSIM_REGTEST_DIFF_COUNTRY:
|
|
/*
|
|
* Nothing to be done for driver regulatory domain
|
|
* hints prior to ieee80211_register_hw()
|
|
*/
|
|
break;
|
|
case HWSIM_REGTEST_WORLD_ROAM:
|
|
if (i == 0) {
|
|
hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
|
|
wiphy_apply_custom_regulatory(hw->wiphy,
|
|
&hwsim_world_regdom_custom_01);
|
|
}
|
|
break;
|
|
case HWSIM_REGTEST_CUSTOM_WORLD:
|
|
hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
|
|
wiphy_apply_custom_regulatory(hw->wiphy,
|
|
&hwsim_world_regdom_custom_01);
|
|
break;
|
|
case HWSIM_REGTEST_CUSTOM_WORLD_2:
|
|
if (i == 0) {
|
|
hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
|
|
wiphy_apply_custom_regulatory(hw->wiphy,
|
|
&hwsim_world_regdom_custom_01);
|
|
} else if (i == 1) {
|
|
hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
|
|
wiphy_apply_custom_regulatory(hw->wiphy,
|
|
&hwsim_world_regdom_custom_02);
|
|
}
|
|
break;
|
|
case HWSIM_REGTEST_STRICT_ALL:
|
|
hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
|
|
break;
|
|
case HWSIM_REGTEST_STRICT_FOLLOW:
|
|
case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
|
|
if (i == 0)
|
|
hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
|
|
break;
|
|
case HWSIM_REGTEST_ALL:
|
|
if (i == 0) {
|
|
hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
|
|
wiphy_apply_custom_regulatory(hw->wiphy,
|
|
&hwsim_world_regdom_custom_01);
|
|
} else if (i == 1) {
|
|
hw->wiphy->flags |= WIPHY_FLAG_CUSTOM_REGULATORY;
|
|
wiphy_apply_custom_regulatory(hw->wiphy,
|
|
&hwsim_world_regdom_custom_02);
|
|
} else if (i == 4)
|
|
hw->wiphy->flags |= WIPHY_FLAG_STRICT_REGULATORY;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
/* give the regulatory workqueue a chance to run */
|
|
if (regtest)
|
|
schedule_timeout_interruptible(1);
|
|
err = ieee80211_register_hw(hw);
|
|
if (err < 0) {
|
|
printk(KERN_DEBUG "mac80211_hwsim: "
|
|
"ieee80211_register_hw failed (%d)\n", err);
|
|
goto failed_hw;
|
|
}
|
|
|
|
/* Work to be done after to ieee80211_register_hw() */
|
|
switch (regtest) {
|
|
case HWSIM_REGTEST_WORLD_ROAM:
|
|
case HWSIM_REGTEST_DISABLED:
|
|
break;
|
|
case HWSIM_REGTEST_DRIVER_REG_FOLLOW:
|
|
if (!i)
|
|
regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
|
|
break;
|
|
case HWSIM_REGTEST_DRIVER_REG_ALL:
|
|
case HWSIM_REGTEST_STRICT_ALL:
|
|
regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
|
|
break;
|
|
case HWSIM_REGTEST_DIFF_COUNTRY:
|
|
if (i < ARRAY_SIZE(hwsim_alpha2s))
|
|
regulatory_hint(hw->wiphy, hwsim_alpha2s[i]);
|
|
break;
|
|
case HWSIM_REGTEST_CUSTOM_WORLD:
|
|
case HWSIM_REGTEST_CUSTOM_WORLD_2:
|
|
/*
|
|
* Nothing to be done for custom world regulatory
|
|
* domains after to ieee80211_register_hw
|
|
*/
|
|
break;
|
|
case HWSIM_REGTEST_STRICT_FOLLOW:
|
|
if (i == 0)
|
|
regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
|
|
break;
|
|
case HWSIM_REGTEST_STRICT_AND_DRIVER_REG:
|
|
if (i == 0)
|
|
regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
|
|
else if (i == 1)
|
|
regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
|
|
break;
|
|
case HWSIM_REGTEST_ALL:
|
|
if (i == 2)
|
|
regulatory_hint(hw->wiphy, hwsim_alpha2s[0]);
|
|
else if (i == 3)
|
|
regulatory_hint(hw->wiphy, hwsim_alpha2s[1]);
|
|
else if (i == 4)
|
|
regulatory_hint(hw->wiphy, hwsim_alpha2s[2]);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
wiphy_debug(hw->wiphy, "hwaddr %pm registered\n",
|
|
hw->wiphy->perm_addr);
|
|
|
|
data->debugfs = debugfs_create_dir("hwsim",
|
|
hw->wiphy->debugfsdir);
|
|
data->debugfs_ps = debugfs_create_file("ps", 0666,
|
|
data->debugfs, data,
|
|
&hwsim_fops_ps);
|
|
data->debugfs_group = debugfs_create_file("group", 0666,
|
|
data->debugfs, data,
|
|
&hwsim_fops_group);
|
|
|
|
setup_timer(&data->beacon_timer, mac80211_hwsim_beacon,
|
|
(unsigned long) hw);
|
|
|
|
list_add_tail(&data->list, &hwsim_radios);
|
|
}
|
|
|
|
hwsim_mon = alloc_netdev(0, "hwsim%d", hwsim_mon_setup);
|
|
if (hwsim_mon == NULL)
|
|
goto failed;
|
|
|
|
err = register_netdev(hwsim_mon);
|
|
if (err < 0)
|
|
goto failed_mon;
|
|
|
|
return 0;
|
|
|
|
failed_mon:
|
|
rtnl_unlock();
|
|
free_netdev(hwsim_mon);
|
|
mac80211_hwsim_free();
|
|
return err;
|
|
|
|
failed_hw:
|
|
device_unregister(data->dev);
|
|
failed_drvdata:
|
|
ieee80211_free_hw(hw);
|
|
failed:
|
|
mac80211_hwsim_free();
|
|
return err;
|
|
}
|
|
|
|
|
|
static void __exit exit_mac80211_hwsim(void)
|
|
{
|
|
printk(KERN_DEBUG "mac80211_hwsim: unregister radios\n");
|
|
|
|
mac80211_hwsim_free();
|
|
unregister_netdev(hwsim_mon);
|
|
}
|
|
|
|
|
|
module_init(init_mac80211_hwsim);
|
|
module_exit(exit_mac80211_hwsim);
|