![Jouni Malinen](/assets/img/avatar_default.png)
mac80211_hwsim has no problems with MFP, so report it as MFP capable. Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
877 lines
22 KiB
C
877 lines
22 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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* - IBSS mode simulation (Beacon transmission with competition for "air time")
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* - IEEE 802.11a and 802.11n modes
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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/spinlock.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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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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static const struct ieee80211_channel hwsim_channels[] = {
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{ .center_freq = 2412 },
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{ .center_freq = 2417 },
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{ .center_freq = 2422 },
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{ .center_freq = 2427 },
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{ .center_freq = 2432 },
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{ .center_freq = 2437 },
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{ .center_freq = 2442 },
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{ .center_freq = 2447 },
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{ .center_freq = 2452 },
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{ .center_freq = 2457 },
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{ .center_freq = 2462 },
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{ .center_freq = 2467 },
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{ .center_freq = 2472 },
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{ .center_freq = 2484 },
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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 band;
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struct ieee80211_channel channels[ARRAY_SIZE(hwsim_channels)];
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struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)];
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struct ieee80211_channel *channel;
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int radio_enabled;
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unsigned long beacon_int; /* in jiffies unit */
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unsigned int rx_filter;
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int started;
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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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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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} __attribute__ ((packed));
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static int hwsim_mon_xmit(struct sk_buff *skb, 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 0;
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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 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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static bool mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
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struct sk_buff *skb)
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{
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struct mac80211_hwsim_data *data = hw->priv, *data2;
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bool ack = false;
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struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
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struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
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struct ieee80211_rx_status rx_status;
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memset(&rx_status, 0, sizeof(rx_status));
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/* TODO: set mactime */
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rx_status.freq = data->channel->center_freq;
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rx_status.band = data->channel->band;
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rx_status.rate_idx = info->control.rates[0].idx;
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/* TODO: simulate signal strength (and optional packet drop) */
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if (data->ps != PS_DISABLED)
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hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
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/* Copy skb to all enabled radios that are on the current frequency */
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spin_lock(&hwsim_radio_lock);
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list_for_each_entry(data2, &hwsim_radios, list) {
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struct sk_buff *nskb;
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if (data == data2)
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continue;
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if (!data2->started || !data2->radio_enabled ||
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!hwsim_ps_rx_ok(data2, skb) ||
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data->channel->center_freq != data2->channel->center_freq)
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continue;
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nskb = skb_copy(skb, GFP_ATOMIC);
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if (nskb == NULL)
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continue;
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if (memcmp(hdr->addr1, data2->hw->wiphy->perm_addr,
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ETH_ALEN) == 0)
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ack = true;
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ieee80211_rx_irqsafe(data2->hw, nskb, &rx_status);
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}
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spin_unlock(&hwsim_radio_lock);
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return ack;
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}
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static int mac80211_hwsim_tx(struct ieee80211_hw *hw, struct sk_buff *skb)
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{
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struct mac80211_hwsim_data *data = hw->priv;
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bool ack;
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struct ieee80211_tx_info *txi;
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mac80211_hwsim_monitor_rx(hw, skb);
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if (skb->len < 10) {
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/* Should not happen; just a sanity check for addr1 use */
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dev_kfree_skb(skb);
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return NETDEV_TX_OK;
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}
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if (!data->radio_enabled) {
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printk(KERN_DEBUG "%s: dropped TX frame since radio "
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"disabled\n", wiphy_name(hw->wiphy));
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dev_kfree_skb(skb);
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return NETDEV_TX_OK;
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}
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ack = mac80211_hwsim_tx_frame(hw, skb);
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txi = IEEE80211_SKB_CB(skb);
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if (txi->control.vif)
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hwsim_check_magic(txi->control.vif);
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if (txi->control.sta)
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hwsim_check_sta_magic(txi->control.sta);
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ieee80211_tx_info_clear_status(txi);
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if (!(txi->flags & IEEE80211_TX_CTL_NO_ACK) && ack)
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txi->flags |= IEEE80211_TX_STAT_ACK;
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ieee80211_tx_status_irqsafe(hw, skb);
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return NETDEV_TX_OK;
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}
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static int mac80211_hwsim_start(struct ieee80211_hw *hw)
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{
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struct mac80211_hwsim_data *data = hw->priv;
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printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
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data->started = 1;
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return 0;
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}
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static void mac80211_hwsim_stop(struct ieee80211_hw *hw)
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{
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struct mac80211_hwsim_data *data = hw->priv;
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data->started = 0;
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del_timer(&data->beacon_timer);
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printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
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}
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static int mac80211_hwsim_add_interface(struct ieee80211_hw *hw,
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struct ieee80211_if_init_conf *conf)
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{
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printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%pM)\n",
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wiphy_name(hw->wiphy), __func__, conf->type,
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conf->mac_addr);
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hwsim_set_magic(conf->vif);
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return 0;
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}
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static void mac80211_hwsim_remove_interface(
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struct ieee80211_hw *hw, struct ieee80211_if_init_conf *conf)
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{
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printk(KERN_DEBUG "%s:%s (type=%d mac_addr=%pM)\n",
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wiphy_name(hw->wiphy), __func__, conf->type,
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conf->mac_addr);
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hwsim_check_magic(conf->vif);
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hwsim_clear_magic(conf->vif);
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}
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static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac,
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struct ieee80211_vif *vif)
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{
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struct ieee80211_hw *hw = arg;
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struct sk_buff *skb;
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struct ieee80211_tx_info *info;
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hwsim_check_magic(vif);
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if (vif->type != NL80211_IFTYPE_AP &&
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vif->type != NL80211_IFTYPE_MESH_POINT)
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return;
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skb = ieee80211_beacon_get(hw, vif);
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if (skb == NULL)
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return;
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info = IEEE80211_SKB_CB(skb);
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mac80211_hwsim_monitor_rx(hw, skb);
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mac80211_hwsim_tx_frame(hw, skb);
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dev_kfree_skb(skb);
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}
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static void mac80211_hwsim_beacon(unsigned long arg)
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{
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struct ieee80211_hw *hw = (struct ieee80211_hw *) arg;
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struct mac80211_hwsim_data *data = hw->priv;
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if (!data->started || !data->radio_enabled)
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return;
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ieee80211_iterate_active_interfaces_atomic(
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hw, mac80211_hwsim_beacon_tx, hw);
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data->beacon_timer.expires = jiffies + data->beacon_int;
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add_timer(&data->beacon_timer);
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}
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static int mac80211_hwsim_config(struct ieee80211_hw *hw, u32 changed)
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{
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struct mac80211_hwsim_data *data = hw->priv;
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struct ieee80211_conf *conf = &hw->conf;
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printk(KERN_DEBUG "%s:%s (freq=%d radio_enabled=%d beacon_int=%d)\n",
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wiphy_name(hw->wiphy), __func__,
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conf->channel->center_freq, conf->radio_enabled,
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conf->beacon_int);
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data->channel = conf->channel;
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data->radio_enabled = conf->radio_enabled;
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data->beacon_int = 1024 * conf->beacon_int / 1000 * HZ / 1000;
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if (data->beacon_int < 1)
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data->beacon_int = 1;
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if (!data->started || !data->radio_enabled)
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del_timer(&data->beacon_timer);
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else
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mod_timer(&data->beacon_timer, jiffies + data->beacon_int);
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return 0;
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}
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static void mac80211_hwsim_configure_filter(struct ieee80211_hw *hw,
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unsigned int changed_flags,
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unsigned int *total_flags,
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int mc_count,
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struct dev_addr_list *mc_list)
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{
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struct mac80211_hwsim_data *data = hw->priv;
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printk(KERN_DEBUG "%s:%s\n", wiphy_name(hw->wiphy), __func__);
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data->rx_filter = 0;
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if (*total_flags & FIF_PROMISC_IN_BSS)
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data->rx_filter |= FIF_PROMISC_IN_BSS;
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if (*total_flags & FIF_ALLMULTI)
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data->rx_filter |= FIF_ALLMULTI;
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*total_flags = data->rx_filter;
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}
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static int mac80211_hwsim_config_interface(struct ieee80211_hw *hw,
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struct ieee80211_vif *vif,
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struct ieee80211_if_conf *conf)
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{
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struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
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hwsim_check_magic(vif);
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if (conf->changed & IEEE80211_IFCC_BSSID) {
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DECLARE_MAC_BUF(mac);
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printk(KERN_DEBUG "%s:%s: BSSID changed: %pM\n",
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wiphy_name(hw->wiphy), __func__,
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conf->bssid);
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memcpy(vp->bssid, conf->bssid, ETH_ALEN);
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}
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return 0;
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}
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static void mac80211_hwsim_bss_info_changed(struct ieee80211_hw *hw,
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struct ieee80211_vif *vif,
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struct ieee80211_bss_conf *info,
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u32 changed)
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{
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struct hwsim_vif_priv *vp = (void *)vif->drv_priv;
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hwsim_check_magic(vif);
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printk(KERN_DEBUG "%s:%s(changed=0x%x)\n",
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wiphy_name(hw->wiphy), __func__, changed);
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if (changed & BSS_CHANGED_ASSOC) {
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printk(KERN_DEBUG " %s: ASSOC: assoc=%d aid=%d\n",
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wiphy_name(hw->wiphy), info->assoc, info->aid);
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vp->assoc = info->assoc;
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vp->aid = info->aid;
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}
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if (changed & BSS_CHANGED_ERP_CTS_PROT) {
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printk(KERN_DEBUG " %s: ERP_CTS_PROT: %d\n",
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wiphy_name(hw->wiphy), info->use_cts_prot);
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}
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if (changed & BSS_CHANGED_ERP_PREAMBLE) {
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printk(KERN_DEBUG " %s: ERP_PREAMBLE: %d\n",
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wiphy_name(hw->wiphy), info->use_short_preamble);
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}
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if (changed & BSS_CHANGED_ERP_SLOT) {
|
|
printk(KERN_DEBUG " %s: ERP_SLOT: %d\n",
|
|
wiphy_name(hw->wiphy), info->use_short_slot);
|
|
}
|
|
|
|
if (changed & BSS_CHANGED_HT) {
|
|
printk(KERN_DEBUG " %s: HT: op_mode=0x%x\n",
|
|
wiphy_name(hw->wiphy),
|
|
info->ht.operation_mode);
|
|
}
|
|
|
|
if (changed & BSS_CHANGED_BASIC_RATES) {
|
|
printk(KERN_DEBUG " %s: BASIC_RATES: 0x%llx\n",
|
|
wiphy_name(hw->wiphy),
|
|
(unsigned long long) info->basic_rates);
|
|
}
|
|
}
|
|
|
|
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_ADD:
|
|
hwsim_set_sta_magic(sta);
|
|
break;
|
|
case STA_NOTIFY_REMOVE:
|
|
hwsim_clear_sta_magic(sta);
|
|
break;
|
|
case STA_NOTIFY_SLEEP:
|
|
case STA_NOTIFY_AWAKE:
|
|
/* TODO: make good use of these flags */
|
|
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)
|
|
{
|
|
printk(KERN_DEBUG "%s:%s (queue=%d txop=%d cw_min=%d cw_max=%d "
|
|
"aifs=%d)\n",
|
|
wiphy_name(hw->wiphy), __func__, queue,
|
|
params->txop, params->cw_min, params->cw_max, params->aifs);
|
|
return 0;
|
|
}
|
|
|
|
static const struct ieee80211_ops mac80211_hwsim_ops =
|
|
{
|
|
.tx = mac80211_hwsim_tx,
|
|
.start = mac80211_hwsim_start,
|
|
.stop = mac80211_hwsim_stop,
|
|
.add_interface = mac80211_hwsim_add_interface,
|
|
.remove_interface = mac80211_hwsim_remove_interface,
|
|
.config = mac80211_hwsim_config,
|
|
.configure_filter = mac80211_hwsim_configure_filter,
|
|
.config_interface = mac80211_hwsim_config_interface,
|
|
.bss_info_changed = mac80211_hwsim_bss_info_changed,
|
|
.sta_notify = mac80211_hwsim_sta_notify,
|
|
.set_tim = mac80211_hwsim_set_tim,
|
|
.conf_tx = mac80211_hwsim_conf_tx,
|
|
};
|
|
|
|
|
|
static void mac80211_hwsim_free(void)
|
|
{
|
|
struct list_head tmplist, *i, *tmp;
|
|
struct mac80211_hwsim_data *data;
|
|
|
|
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(data, &tmplist, list) {
|
|
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 void hwsim_mon_setup(struct net_device *dev)
|
|
{
|
|
dev->hard_start_xmit = hwsim_mon_xmit;
|
|
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;
|
|
DECLARE_MAC_BUF(buf);
|
|
struct sk_buff *skb;
|
|
struct ieee80211_pspoll *pspoll;
|
|
|
|
if (!vp->assoc)
|
|
return;
|
|
|
|
printk(KERN_DEBUG "%s:%s: send PS-Poll to %pM for aid %d\n",
|
|
wiphy_name(data->hw->wiphy), __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 (data->radio_enabled &&
|
|
!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;
|
|
DECLARE_MAC_BUF(buf);
|
|
struct sk_buff *skb;
|
|
struct ieee80211_hdr *hdr;
|
|
|
|
if (!vp->assoc)
|
|
return;
|
|
|
|
printk(KERN_DEBUG "%s:%s: send data::nullfunc to %pM ps=%d\n",
|
|
wiphy_name(data->hw->wiphy), __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 (data->radio_enabled &&
|
|
!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 __init init_mac80211_hwsim(void)
|
|
{
|
|
int i, err = 0;
|
|
u8 addr[ETH_ALEN];
|
|
struct mac80211_hwsim_data *data;
|
|
struct ieee80211_hw *hw;
|
|
|
|
if (radios < 1 || radios > 100)
|
|
return -EINVAL;
|
|
|
|
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;
|
|
SET_IEEE80211_PERM_ADDR(hw, addr);
|
|
|
|
hw->channel_change_time = 1;
|
|
hw->queues = 4;
|
|
hw->wiphy->interface_modes =
|
|
BIT(NL80211_IFTYPE_STATION) |
|
|
BIT(NL80211_IFTYPE_AP) |
|
|
BIT(NL80211_IFTYPE_MESH_POINT);
|
|
hw->ampdu_queues = 1;
|
|
|
|
hw->flags = IEEE80211_HW_MFP_CAPABLE;
|
|
|
|
/* 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, hwsim_channels, sizeof(hwsim_channels));
|
|
memcpy(data->rates, hwsim_rates, sizeof(hwsim_rates));
|
|
data->band.channels = data->channels;
|
|
data->band.n_channels = ARRAY_SIZE(hwsim_channels);
|
|
data->band.bitrates = data->rates;
|
|
data->band.n_bitrates = ARRAY_SIZE(hwsim_rates);
|
|
data->band.ht_cap.ht_supported = true;
|
|
data->band.ht_cap.cap = IEEE80211_HT_CAP_SUP_WIDTH_20_40 |
|
|
IEEE80211_HT_CAP_GRN_FLD |
|
|
IEEE80211_HT_CAP_SGI_40 |
|
|
IEEE80211_HT_CAP_DSSSCCK40;
|
|
data->band.ht_cap.ampdu_factor = 0x3;
|
|
data->band.ht_cap.ampdu_density = 0x6;
|
|
memset(&data->band.ht_cap.mcs, 0,
|
|
sizeof(data->band.ht_cap.mcs));
|
|
data->band.ht_cap.mcs.rx_mask[0] = 0xff;
|
|
data->band.ht_cap.mcs.rx_mask[1] = 0xff;
|
|
data->band.ht_cap.mcs.tx_params = IEEE80211_HT_MCS_TX_DEFINED;
|
|
hw->wiphy->bands[IEEE80211_BAND_2GHZ] = &data->band;
|
|
|
|
err = ieee80211_register_hw(hw);
|
|
if (err < 0) {
|
|
printk(KERN_DEBUG "mac80211_hwsim: "
|
|
"ieee80211_register_hw failed (%d)\n", err);
|
|
goto failed_hw;
|
|
}
|
|
|
|
printk(KERN_DEBUG "%s: hwaddr %pM registered\n",
|
|
wiphy_name(hw->wiphy),
|
|
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);
|
|
|
|
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;
|
|
|
|
rtnl_lock();
|
|
|
|
err = dev_alloc_name(hwsim_mon, hwsim_mon->name);
|
|
if (err < 0)
|
|
goto failed_mon;
|
|
|
|
|
|
err = register_netdevice(hwsim_mon);
|
|
if (err < 0)
|
|
goto failed_mon;
|
|
|
|
rtnl_unlock();
|
|
|
|
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");
|
|
|
|
unregister_netdev(hwsim_mon);
|
|
mac80211_hwsim_free();
|
|
}
|
|
|
|
|
|
module_init(init_mac80211_hwsim);
|
|
module_exit(exit_mac80211_hwsim);
|