diff --git a/Makefile b/Makefile index f5a1b58..4b9e3be 100644 --- a/Makefile +++ b/Makefile @@ -1,6 +1,6 @@ SHELL=/bin/sh MAKE = make -SUBDIRS ?= mac80211_hwsim rawsocket wmediumd +SUBDIRS ?= rawsocket wmediumd all: diff --git a/README b/README index c592d4a..93ec6ed 100644 --- a/README +++ b/README @@ -1,6 +1,5 @@ This folder contains: -mac80211_hwsim/ -> Modified mac80211_hwsim module to support userspace frame tx. rawsocket/ -> Raw socket based ping-pong application to test stability and loss probability behaviour. wmediumd/ -> User space application to apply loss probability per link. wconfig/ -> Java based tool to create advanced config files for wmediumd. @@ -16,34 +15,21 @@ Once all dependencies are satisfied, just execute make on the main folder, binar ***Execution of applications*** -[mac80211_hwsim] - -Modified mac80211_hwsim module starts in no wmediumd mode, so there is not loss probability applied to the tx frames, it just registers the custom generic netlink family, and waits until an user application is registered. When an application registers, all transmited frames will be handled by this user space application. When the registered application stops listening to the kernel module, the module will return to NO wmediumd mode automatically, and will not apply any loss probability. - -- To load the module and setup a simple mesh containing two nodes: - - $ cd mac80211_hwsim - $ ./script.sh (It will ask for superuser permission ) - -- To unload the module just execute sudo rmmod mac80211_hwsim - [wmediumd] The user application is responsible for handling the frames sent from the kernel space, this sample application creates a simple probability matrix with the same probability values per link. -- To launch the application in configuration mode: +- To launch the application in simulation mode and with probability matrix config (superuser is required) : $ cd wmediumd - $ ./wmediumd -o [FILE] - -It will create a new FILE with the a sample configuration schema. + $ sudo ./wmediumd -c [FILE] -- To launch the application in simulation mode (superuser is required): +- To launch the application in simulation medium mobility mode (superuser is required and check for cfg-examples/mobility.cfg config file example): $ cd wmediumd - $ sudo ./wmediumd -c [FILE] + $ sudo ./wmediumd -m [FILE] -Once launch it will show all the probability matrix and the transmission counters. +Once launch it will show all the scenario configured parameters. NOTE: It is necessary to provide a configuration file to start the simulation. Inside wmediumd/cfg-examples you can find multiple config file samples. @@ -82,5 +68,3 @@ To launch the application: $ java - jar wconfig.jar Enjoy! - - diff --git a/mac80211_hwsim/Makefile b/mac80211_hwsim/Makefile deleted file mode 100644 index c3725d4..0000000 --- a/mac80211_hwsim/Makefile +++ /dev/null @@ -1,8 +0,0 @@ -obj-m += mac80211_hwsim.o - -all: - make -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules - -clean: - make -C /lib/modules/$(shell uname -r)/build M=$(PWD) clean - diff --git a/mac80211_hwsim/mac80211_hwsim.c b/mac80211_hwsim/mac80211_hwsim.c deleted file mode 100644 index 7e1fa96..0000000 --- a/mac80211_hwsim/mac80211_hwsim.c +++ /dev/null @@ -1,1982 +0,0 @@ -/* - * mac80211_hwsim - software simulator of 802.11 radio(s) for mac80211 - * Copyright (c) 2008, Jouni Malinen - * Copyright (c) 2011, Javier Lopez - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -/* - * TODO: - * - Add TSF sync and fix IBSS beacon transmission by adding - * competition for "air time" at TBTT - * - RX filtering based on filter configuration (data->rx_filter) - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include "mac80211_hwsim.h" - -#define WARN_QUEUE 100 -#define MAX_QUEUE 200 - -MODULE_AUTHOR("Jouni Malinen"); -MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211"); -MODULE_LICENSE("GPL"); - -int wmediumd_pid; -static int radios = 2; -module_param(radios, int, 0444); -MODULE_PARM_DESC(radios, "Number of simulated radios"); - -static bool fake_hw_scan; -module_param(fake_hw_scan, bool, 0444); -MODULE_PARM_DESC(fake_hw_scan, "Install fake (no-op) hw-scan handler"); - -/** - * enum hwsim_regtest - the type of regulatory tests we offer - * - * These are the different values you can use for the regtest - * module parameter. This is useful to help test world roaming - * and the driver regulatory_hint() call and combinations of these. - * If you want to do specific alpha2 regulatory domain tests simply - * use the userspace regulatory request as that will be respected as - * well without the need of this module parameter. This is designed - * only for testing the driver regulatory request, world roaming - * and all possible combinations. - * - * @HWSIM_REGTEST_DISABLED: No regulatory tests are performed, - * this is the default value. - * @HWSIM_REGTEST_DRIVER_REG_FOLLOW: Used for testing the driver regulatory - * hint, only one driver regulatory hint will be sent as such the - * secondary radios are expected to follow. - * @HWSIM_REGTEST_DRIVER_REG_ALL: Used for testing the driver regulatory - * request with all radios reporting the same regulatory domain. - * @HWSIM_REGTEST_DIFF_COUNTRY: Used for testing the drivers calling - * different regulatory domains requests. Expected behaviour is for - * an intersection to occur but each device will still use their - * respective regulatory requested domains. Subsequent radios will - * use the resulting intersection. - * @HWSIM_REGTEST_WORLD_ROAM: Used for testing the world roaming. We accomplish - * this by using a custom beacon-capable regulatory domain for the first - * radio. All other device world roam. - * @HWSIM_REGTEST_CUSTOM_WORLD: Used for testing the custom world regulatory - * domain requests. All radios will adhere to this custom world regulatory - * domain. - * @HWSIM_REGTEST_CUSTOM_WORLD_2: Used for testing 2 custom world regulatory - * domain requests. The first radio will adhere to the first custom world - * regulatory domain, the second one to the second custom world regulatory - * domain. All other devices will world roam. - * @HWSIM_REGTEST_STRICT_FOLLOW_: Used for testing strict regulatory domain - * settings, only the first radio will send a regulatory domain request - * and use strict settings. The rest of the radios are expected to follow. - * @HWSIM_REGTEST_STRICT_ALL: Used for testing strict regulatory domain - * settings. All radios will adhere to this. - * @HWSIM_REGTEST_STRICT_AND_DRIVER_REG: Used for testing strict regulatory - * domain settings, combined with secondary driver regulatory domain - * settings. The first radio will get a strict regulatory domain setting - * using the first driver regulatory request and the second radio will use - * non-strict settings using the second driver regulatory request. All - * other devices should follow the intersection created between the - * first two. - * @HWSIM_REGTEST_ALL: Used for testing every possible mix. You will need - * at least 6 radios for a complete test. We will test in this order: - * 1 - driver custom world regulatory domain - * 2 - second custom world regulatory domain - * 3 - first driver regulatory domain request - * 4 - second driver regulatory domain request - * 5 - strict regulatory domain settings using the third driver regulatory - * domain request - * 6 and on - should follow the intersection of the 3rd, 4rth and 5th radio - * regulatory requests. - */ -enum hwsim_regtest { - HWSIM_REGTEST_DISABLED = 0, - HWSIM_REGTEST_DRIVER_REG_FOLLOW = 1, - HWSIM_REGTEST_DRIVER_REG_ALL = 2, - HWSIM_REGTEST_DIFF_COUNTRY = 3, - HWSIM_REGTEST_WORLD_ROAM = 4, - HWSIM_REGTEST_CUSTOM_WORLD = 5, - HWSIM_REGTEST_CUSTOM_WORLD_2 = 6, - HWSIM_REGTEST_STRICT_FOLLOW = 7, - HWSIM_REGTEST_STRICT_ALL = 8, - HWSIM_REGTEST_STRICT_AND_DRIVER_REG = 9, - HWSIM_REGTEST_ALL = 10, -}; - -/* Set to one of the HWSIM_REGTEST_* values above */ -static int regtest = HWSIM_REGTEST_DISABLED; -module_param(regtest, int, 0444); -MODULE_PARM_DESC(regtest, "The type of regulatory test we want to run"); - -static const char *hwsim_alpha2s[] = { - "FI", - "AL", - "US", - "DE", - "JP", - "AL", -}; - -static const struct ieee80211_regdomain hwsim_world_regdom_custom_01 = { - .n_reg_rules = 4, - .alpha2 = "99", - .reg_rules = { - REG_RULE(2412-10, 2462+10, 40, 0, 20, 0), - REG_RULE(2484-10, 2484+10, 40, 0, 20, 0), - REG_RULE(5150-10, 5240+10, 40, 0, 30, 0), - REG_RULE(5745-10, 5825+10, 40, 0, 30, 0), - } -}; - -static const struct ieee80211_regdomain hwsim_world_regdom_custom_02 = { - .n_reg_rules = 2, - .alpha2 = "99", - .reg_rules = { - REG_RULE(2412-10, 2462+10, 40, 0, 20, 0), - REG_RULE(5725-10, 5850+10, 40, 0, 30, - NL80211_RRF_PASSIVE_SCAN | NL80211_RRF_NO_IBSS), - } -}; - -struct hwsim_vif_priv { - u32 magic; - u8 bssid[ETH_ALEN]; - bool assoc; - u16 aid; -}; - -#define HWSIM_VIF_MAGIC 0x69537748 - -static inline void hwsim_check_magic(struct ieee80211_vif *vif) -{ - struct hwsim_vif_priv *vp = (void *)vif->drv_priv; - WARN_ON(vp->magic != HWSIM_VIF_MAGIC); -} - -static inline void hwsim_set_magic(struct ieee80211_vif *vif) -{ - struct hwsim_vif_priv *vp = (void *)vif->drv_priv; - vp->magic = HWSIM_VIF_MAGIC; -} - -static inline void hwsim_clear_magic(struct ieee80211_vif *vif) -{ - struct hwsim_vif_priv *vp = (void *)vif->drv_priv; - vp->magic = 0; -} - -struct hwsim_sta_priv { - u32 magic; -}; - -#define HWSIM_STA_MAGIC 0x6d537748 - -static inline void hwsim_check_sta_magic(struct ieee80211_sta *sta) -{ - struct hwsim_sta_priv *sp = (void *)sta->drv_priv; - WARN_ON(sp->magic != HWSIM_STA_MAGIC); -} - -static inline void hwsim_set_sta_magic(struct ieee80211_sta *sta) -{ - struct hwsim_sta_priv *sp = (void *)sta->drv_priv; - sp->magic = HWSIM_STA_MAGIC; -} - -static inline void hwsim_clear_sta_magic(struct ieee80211_sta *sta) -{ - struct hwsim_sta_priv *sp = (void *)sta->drv_priv; - sp->magic = 0; -} - -static struct class *hwsim_class; - -static struct net_device *hwsim_mon; /* global monitor netdev */ - -#define CHAN2G(_freq) { \ - .band = IEEE80211_BAND_2GHZ, \ - .center_freq = (_freq), \ - .hw_value = (_freq), \ - .max_power = 20, \ -} - -#define CHAN5G(_freq) { \ - .band = IEEE80211_BAND_5GHZ, \ - .center_freq = (_freq), \ - .hw_value = (_freq), \ - .max_power = 20, \ -} - -static const struct ieee80211_channel hwsim_channels_2ghz[] = { - CHAN2G(2412), /* Channel 1 */ - CHAN2G(2417), /* Channel 2 */ - CHAN2G(2422), /* Channel 3 */ - CHAN2G(2427), /* Channel 4 */ - CHAN2G(2432), /* Channel 5 */ - CHAN2G(2437), /* Channel 6 */ - CHAN2G(2442), /* Channel 7 */ - CHAN2G(2447), /* Channel 8 */ - CHAN2G(2452), /* Channel 9 */ - CHAN2G(2457), /* Channel 10 */ - CHAN2G(2462), /* Channel 11 */ - CHAN2G(2467), /* Channel 12 */ - CHAN2G(2472), /* Channel 13 */ - CHAN2G(2484), /* Channel 14 */ -}; - -static const struct ieee80211_channel hwsim_channels_5ghz[] = { - CHAN5G(5180), /* Channel 36 */ - CHAN5G(5200), /* Channel 40 */ - CHAN5G(5220), /* Channel 44 */ - CHAN5G(5240), /* Channel 48 */ - - CHAN5G(5260), /* Channel 52 */ - CHAN5G(5280), /* Channel 56 */ - CHAN5G(5300), /* Channel 60 */ - CHAN5G(5320), /* Channel 64 */ - - CHAN5G(5500), /* Channel 100 */ - CHAN5G(5520), /* Channel 104 */ - CHAN5G(5540), /* Channel 108 */ - CHAN5G(5560), /* Channel 112 */ - CHAN5G(5580), /* Channel 116 */ - CHAN5G(5600), /* Channel 120 */ - CHAN5G(5620), /* Channel 124 */ - CHAN5G(5640), /* Channel 128 */ - CHAN5G(5660), /* Channel 132 */ - CHAN5G(5680), /* Channel 136 */ - CHAN5G(5700), /* Channel 140 */ - - CHAN5G(5745), /* Channel 149 */ - CHAN5G(5765), /* Channel 153 */ - CHAN5G(5785), /* Channel 157 */ - CHAN5G(5805), /* Channel 161 */ - CHAN5G(5825), /* Channel 165 */ -}; - -static const struct ieee80211_rate hwsim_rates[] = { - { .bitrate = 10 }, - { .bitrate = 20, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, - { .bitrate = 55, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, - { .bitrate = 110, .flags = IEEE80211_RATE_SHORT_PREAMBLE }, - { .bitrate = 60 }, - { .bitrate = 90 }, - { .bitrate = 120 }, - { .bitrate = 180 }, - { .bitrate = 240 }, - { .bitrate = 360 }, - { .bitrate = 480 }, - { .bitrate = 540 } -}; - -static spinlock_t hwsim_radio_lock; -static struct list_head hwsim_radios; - -struct mac80211_hwsim_data { - struct list_head list; - struct ieee80211_hw *hw; - struct device *dev; - struct ieee80211_supported_band bands[2]; - struct ieee80211_channel channels_2ghz[ARRAY_SIZE(hwsim_channels_2ghz)]; - struct ieee80211_channel channels_5ghz[ARRAY_SIZE(hwsim_channels_5ghz)]; - struct ieee80211_rate rates[ARRAY_SIZE(hwsim_rates)]; - - struct mac_address addresses[2]; - - struct ieee80211_channel *channel; - unsigned long beacon_int; /* in jiffies unit */ - unsigned int rx_filter; - bool started, idle, scanning; - struct mutex mutex; - struct timer_list beacon_timer; - enum ps_mode { - PS_DISABLED, PS_ENABLED, PS_AUTO_POLL, PS_MANUAL_POLL - } ps; - bool ps_poll_pending; - struct dentry *debugfs; - struct dentry *debugfs_ps; - - struct sk_buff_head pending; /* packets pending */ - /* - * Only radios in the same group can communicate together (the - * channel has to match too). Each bit represents a group. A - * radio can be in more then one group. - */ - u64 group; - struct dentry *debugfs_group; - - int power_level; -}; - - -struct hwsim_radiotap_hdr { - struct ieee80211_radiotap_header hdr; - u8 rt_flags; - u8 rt_rate; - __le16 rt_channel; - __le16 rt_chbitmask; -} __packed; - -/* MAC80211_HWSIM netlinf family */ -static struct genl_family hwsim_genl_family = { - .id = GENL_ID_GENERATE, - .hdrsize = 0, - .name = "MAC80211_HWSIM", - .version = 1, - .maxattr = HWSIM_ATTR_MAX, -}; - -/* MAC80211_HWSIM netlink policy */ - -static struct nla_policy hwsim_genl_policy[HWSIM_ATTR_MAX + 1] = { - [HWSIM_ATTR_ADDR_RECEIVER] = { .type = NLA_UNSPEC, - .len = 6*sizeof(u8) }, - [HWSIM_ATTR_ADDR_TRANSMITTER] = { .type = NLA_UNSPEC, - .len = 6*sizeof(u8) }, - [HWSIM_ATTR_FRAME] = { .type = NLA_BINARY, - .len = IEEE80211_MAX_DATA_LEN }, - [HWSIM_ATTR_FLAGS] = { .type = NLA_U32 }, - [HWSIM_ATTR_RX_RATE] = { .type = NLA_U32 }, - [HWSIM_ATTR_SIGNAL] = { .type = NLA_U32 }, - [HWSIM_ATTR_TX_INFO] = { .type = NLA_UNSPEC, - .len = IEEE80211_TX_MAX_RATES*sizeof( - struct hwsim_tx_rate)}, - [HWSIM_ATTR_COOKIE] = { .type = NLA_U64 }, -}; - -static netdev_tx_t hwsim_mon_xmit(struct sk_buff *skb, - struct net_device *dev) -{ - /* TODO: allow packet injection */ - dev_kfree_skb(skb); - return NETDEV_TX_OK; -} - - -static void mac80211_hwsim_monitor_rx(struct ieee80211_hw *hw, - struct sk_buff *tx_skb) -{ - struct mac80211_hwsim_data *data = hw->priv; - struct sk_buff *skb; - struct hwsim_radiotap_hdr *hdr; - u16 flags; - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(tx_skb); - struct ieee80211_rate *txrate = ieee80211_get_tx_rate(hw, info); - - if (!netif_running(hwsim_mon)) - return; - - skb = skb_copy_expand(tx_skb, sizeof(*hdr), 0, GFP_ATOMIC); - if (skb == NULL) - return; - - hdr = (struct hwsim_radiotap_hdr *) skb_push(skb, sizeof(*hdr)); - hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION; - hdr->hdr.it_pad = 0; - hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr)); - hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) | - (1 << IEEE80211_RADIOTAP_RATE) | - (1 << IEEE80211_RADIOTAP_CHANNEL)); - hdr->rt_flags = 0; - hdr->rt_rate = txrate->bitrate / 5; - hdr->rt_channel = cpu_to_le16(data->channel->center_freq); - flags = IEEE80211_CHAN_2GHZ; - if (txrate->flags & IEEE80211_RATE_ERP_G) - flags |= IEEE80211_CHAN_OFDM; - else - flags |= IEEE80211_CHAN_CCK; - hdr->rt_chbitmask = cpu_to_le16(flags); - - skb->dev = hwsim_mon; - skb_set_mac_header(skb, 0); - skb->ip_summed = CHECKSUM_UNNECESSARY; - skb->pkt_type = PACKET_OTHERHOST; - skb->protocol = htons(ETH_P_802_2); - memset(skb->cb, 0, sizeof(skb->cb)); - netif_rx(skb); -} - - -static void mac80211_hwsim_monitor_ack(struct ieee80211_hw *hw, const u8 *addr) -{ - struct mac80211_hwsim_data *data = hw->priv; - struct sk_buff *skb; - struct hwsim_radiotap_hdr *hdr; - u16 flags; - struct ieee80211_hdr *hdr11; - - if (!netif_running(hwsim_mon)) - return; - - skb = dev_alloc_skb(100); - if (skb == NULL) - return; - - hdr = (struct hwsim_radiotap_hdr *) skb_put(skb, sizeof(*hdr)); - hdr->hdr.it_version = PKTHDR_RADIOTAP_VERSION; - hdr->hdr.it_pad = 0; - hdr->hdr.it_len = cpu_to_le16(sizeof(*hdr)); - hdr->hdr.it_present = cpu_to_le32((1 << IEEE80211_RADIOTAP_FLAGS) | - (1 << IEEE80211_RADIOTAP_CHANNEL)); - hdr->rt_flags = 0; - hdr->rt_rate = 0; - hdr->rt_channel = cpu_to_le16(data->channel->center_freq); - flags = IEEE80211_CHAN_2GHZ; - hdr->rt_chbitmask = cpu_to_le16(flags); - - hdr11 = (struct ieee80211_hdr *) skb_put(skb, 10); - hdr11->frame_control = cpu_to_le16(IEEE80211_FTYPE_CTL | - IEEE80211_STYPE_ACK); - hdr11->duration_id = cpu_to_le16(0); - memcpy(hdr11->addr1, addr, ETH_ALEN); - - skb->dev = hwsim_mon; - skb_set_mac_header(skb, 0); - skb->ip_summed = CHECKSUM_UNNECESSARY; - skb->pkt_type = PACKET_OTHERHOST; - skb->protocol = htons(ETH_P_802_2); - memset(skb->cb, 0, sizeof(skb->cb)); - netif_rx(skb); -} - - -static bool hwsim_ps_rx_ok(struct mac80211_hwsim_data *data, - struct sk_buff *skb) -{ - switch (data->ps) { - case PS_DISABLED: - return true; - case PS_ENABLED: - return false; - case PS_AUTO_POLL: - /* TODO: accept (some) Beacons by default and other frames only - * if pending PS-Poll has been sent */ - return true; - case PS_MANUAL_POLL: - /* Allow unicast frames to own address if there is a pending - * PS-Poll */ - if (data->ps_poll_pending && - memcmp(data->hw->wiphy->perm_addr, skb->data + 4, - ETH_ALEN) == 0) { - data->ps_poll_pending = false; - return true; - } - return false; - } - - return true; -} - - -struct mac80211_hwsim_addr_match_data { - bool ret; - const u8 *addr; -}; - -static void mac80211_hwsim_addr_iter(void *data, u8 *mac, - struct ieee80211_vif *vif) -{ - struct mac80211_hwsim_addr_match_data *md = data; - 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 void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw, - struct sk_buff *my_skb, - int dst_pid) -{ - struct sk_buff *skb; - struct mac80211_hwsim_data *data = hw->priv; - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) my_skb->data; - struct ieee80211_tx_info *info = IEEE80211_SKB_CB(my_skb); - void *msg_head; - unsigned int hwsim_flags = 0; - int i; - struct hwsim_tx_rate tx_attempts[IEEE80211_TX_MAX_RATES]; - - if (data->idle) { - wiphy_debug(hw->wiphy, "Trying to TX when idle - reject\n"); - dev_kfree_skb(my_skb); - return; - } - - if (data->ps != PS_DISABLED) - hdr->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM); - /* If the queue contains MAX_QUEUE skb's drop some */ - if (skb_queue_len(&data->pending) >= MAX_QUEUE) { - /* Droping until WARN_QUEUE level */ - while (skb_queue_len(&data->pending) >= WARN_QUEUE) - skb_dequeue(&data->pending); - } - - skb = genlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC); - if (skb == NULL) - goto nla_put_failure; - - msg_head = genlmsg_put(skb, 0, 0, &hwsim_genl_family, 0, - HWSIM_CMD_FRAME); - if (msg_head == NULL) { - printk(KERN_DEBUG "mac80211_hwsim: problem with msg_head\n"); - goto nla_put_failure; - } - - NLA_PUT(skb, HWSIM_ATTR_ADDR_TRANSMITTER, - sizeof(struct mac_address), data->addresses[1].addr); - - /* We get the skb->data */ - NLA_PUT(skb, HWSIM_ATTR_FRAME, my_skb->len, my_skb->data); - - /* We get the flags for this transmission, and we translate them to - wmediumd flags */ - - if (info->flags & IEEE80211_TX_CTL_REQ_TX_STATUS) - hwsim_flags |= HWSIM_TX_CTL_REQ_TX_STATUS; - - if (info->flags & IEEE80211_TX_CTL_NO_ACK) - hwsim_flags |= HWSIM_TX_CTL_NO_ACK; - - NLA_PUT_U32(skb, HWSIM_ATTR_FLAGS, hwsim_flags); - - /* We get the tx control (rate and retries) info*/ - - for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) { - tx_attempts[i].idx = info->status.rates[i].idx; - tx_attempts[i].count = info->status.rates[i].count; - } - - NLA_PUT(skb, HWSIM_ATTR_TX_INFO, - sizeof(struct hwsim_tx_rate)*IEEE80211_TX_MAX_RATES, - tx_attempts); - - /* We create a cookie to identify this skb */ - NLA_PUT_U64(skb, HWSIM_ATTR_COOKIE, (unsigned long) my_skb); - - genlmsg_end(skb, msg_head); - genlmsg_unicast(&init_net, skb, dst_pid); - - /* Enqueue the packet */ - skb_queue_tail(&data->pending, my_skb); - return; - -nla_put_failure: - printk(KERN_DEBUG "mac80211_hwsim: error occured in %s\n", __func__); -} - -static bool mac80211_hwsim_tx_frame_no_nl(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; - int _pid; - - 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; - } - - /* wmediumd mode check */ - _pid = wmediumd_pid; - - if (_pid) - return mac80211_hwsim_tx_frame_nl(hw, skb, _pid); - - /* NO wmediumd detected, perfect medium simulation */ - ack = mac80211_hwsim_tx_frame_no_nl(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; - int _pid; - - 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); - - /* wmediumd mode check */ - _pid = wmediumd_pid; - - if (_pid) - return mac80211_hwsim_tx_frame_nl(hw, skb, _pid); - - mac80211_hwsim_tx_frame_no_nl(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) -{ - /* Not implemented, queues only on kernel side */ -} - -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; - int _pid; - - 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); - - /* wmediumd mode check */ - _pid = wmediumd_pid; - - if (_pid) - return mac80211_hwsim_tx_frame_nl(data->hw, skb, _pid); - - if (!mac80211_hwsim_tx_frame_no_nl(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; - int _pid; - - 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); - - /* wmediumd mode check */ - _pid = wmediumd_pid; - - if (_pid) - return mac80211_hwsim_tx_frame_nl(data->hw, skb, _pid); - - if (!mac80211_hwsim_tx_frame_no_nl(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"); - -struct mac80211_hwsim_data *get_hwsim_data_ref_from_addr( - struct mac_address *addr) -{ - struct mac80211_hwsim_data *data; - bool _found = false; - - spin_lock_bh(&hwsim_radio_lock); - list_for_each_entry(data, &hwsim_radios, list) { - if (memcmp(data->addresses[1].addr, addr, - sizeof(struct mac_address)) == 0) { - _found = true; - break; - } - } - spin_unlock_bh(&hwsim_radio_lock); - - if (!_found) - return NULL; - - return data; -} - -static int hwsim_tx_info_frame_received_nl(struct sk_buff *skb_2, - struct genl_info *info) -{ - - struct ieee80211_hdr *hdr; - struct mac80211_hwsim_data *data2; - struct ieee80211_tx_info *txi; - struct hwsim_tx_rate *tx_attempts; - struct sk_buff __user *ret_skb; - struct sk_buff *skb, *tmp; - struct mac_address *src; - unsigned int hwsim_flags; - - int i; - bool found = false; - - if (!info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER] || - !info->attrs[HWSIM_ATTR_FLAGS] || - !info->attrs[HWSIM_ATTR_COOKIE] || - !info->attrs[HWSIM_ATTR_TX_INFO]) - goto out; - - src = (struct mac_address *)nla_data( - info->attrs[HWSIM_ATTR_ADDR_TRANSMITTER]); - hwsim_flags = nla_get_u32(info->attrs[HWSIM_ATTR_FLAGS]); - - ret_skb = (struct sk_buff __user *) - (unsigned long) nla_get_u64(info->attrs[HWSIM_ATTR_COOKIE]); - - data2 = get_hwsim_data_ref_from_addr(src); - - if (data2 == NULL) - goto out; - - /* look for the skb matching the cookie passed back from user */ - skb_queue_walk_safe(&data2->pending, skb, tmp) { - if (skb == ret_skb) { - skb_unlink(skb, &data2->pending); - found = true; - break; - } - } - - /* not found */ - if (!found) - goto out; - - /* Tx info received because the frame was broadcasted on user space, - so we get all the necessary info: tx attempts and skb control buff */ - - tx_attempts = (struct hwsim_tx_rate *)nla_data( - info->attrs[HWSIM_ATTR_TX_INFO]); - - /* now send back TX status */ - 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); - - for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) { - txi->status.rates[i].idx = tx_attempts[i].idx; - txi->status.rates[i].count = tx_attempts[i].count; - /*txi->status.rates[i].flags = 0;*/ - } - - txi->status.ack_signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]); - - if (!(hwsim_flags & HWSIM_TX_CTL_NO_ACK) && - (hwsim_flags & HWSIM_TX_STAT_ACK)) { - if (skb->len >= 16) { - hdr = (struct ieee80211_hdr *) skb->data; - mac80211_hwsim_monitor_ack(data2->hw, hdr->addr2); - } - } - ieee80211_tx_status_irqsafe(data2->hw, skb); - return 0; -out: - return -EINVAL; - -} - -static int hwsim_cloned_frame_received_nl(struct sk_buff *skb_2, - struct genl_info *info) -{ - - struct mac80211_hwsim_data *data2; - struct ieee80211_rx_status rx_status; - struct mac_address *dst; - int frame_data_len; - char *frame_data; - struct sk_buff *skb = NULL; - - if (!info->attrs[HWSIM_ATTR_ADDR_RECEIVER] || - !info->attrs[HWSIM_ATTR_FRAME] || - !info->attrs[HWSIM_ATTR_RX_RATE] || - !info->attrs[HWSIM_ATTR_SIGNAL]) - goto out; - - dst = (struct mac_address *)nla_data( - info->attrs[HWSIM_ATTR_ADDR_RECEIVER]); - - frame_data_len = nla_len(info->attrs[HWSIM_ATTR_FRAME]); - frame_data = (char *)nla_data(info->attrs[HWSIM_ATTR_FRAME]); - - /* Allocate new skb here */ - skb = alloc_skb(frame_data_len, GFP_KERNEL); - if (skb == NULL) - goto err; - - if (frame_data_len <= IEEE80211_MAX_DATA_LEN) { - /* Copy the data */ - memcpy(skb_put(skb, frame_data_len), frame_data, - frame_data_len); - } else - goto err; - - data2 = get_hwsim_data_ref_from_addr(dst); - - if (data2 == NULL) - goto out; - - /* check if radio is configured properly */ - - if (data2->idle || !data2->started || !data2->channel) - goto out; - - /*A frame is received from user space*/ - memset(&rx_status, 0, sizeof(rx_status)); - rx_status.freq = data2->channel->center_freq; - rx_status.band = data2->channel->band; - rx_status.rate_idx = nla_get_u32(info->attrs[HWSIM_ATTR_RX_RATE]); - rx_status.signal = nla_get_u32(info->attrs[HWSIM_ATTR_SIGNAL]); - - memcpy(IEEE80211_SKB_RXCB(skb), &rx_status, sizeof(rx_status)); - ieee80211_rx_irqsafe(data2->hw, skb); - - return 0; -err: - printk(KERN_DEBUG "mac80211_hwsim: error occured in %s\n", __func__); - goto out; -out: - dev_kfree_skb(skb); - return -EINVAL; -} - -static int hwsim_register_received_nl(struct sk_buff *skb_2, - struct genl_info *info) -{ - if (info == NULL) - goto out; - - wmediumd_pid = info->snd_pid; - - printk(KERN_DEBUG "mac80211_hwsim: received a REGISTER, " - "switching to wmediumd mode with pid %d\n", info->snd_pid); - - return 0; -out: - printk(KERN_DEBUG "mac80211_hwsim: error occured in %s\n", __func__); - return -EINVAL; -} - -/* Generic Netlink operations array */ -static struct genl_ops hwsim_ops[] = { - { - .cmd = HWSIM_CMD_REGISTER, - .policy = hwsim_genl_policy, - .doit = hwsim_register_received_nl, - .flags = GENL_ADMIN_PERM, - }, - { - .cmd = HWSIM_CMD_FRAME, - .policy = hwsim_genl_policy, - .doit = hwsim_cloned_frame_received_nl, - }, - { - .cmd = HWSIM_CMD_TX_INFO_FRAME, - .policy = hwsim_genl_policy, - .doit = hwsim_tx_info_frame_received_nl, - }, -}; - -static int mac80211_hwsim_netlink_notify(struct notifier_block *nb, - unsigned long state, - void *_notify) -{ - struct netlink_notify *notify = _notify; - - if (state != NETLINK_URELEASE) - return NOTIFY_DONE; - - if (notify->pid == wmediumd_pid) { - printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink" - " socket, switching to perfect channel medium\n"); - wmediumd_pid = 0; - } - return NOTIFY_DONE; - -} - -static struct notifier_block hwsim_netlink_notifier = { - .notifier_call = mac80211_hwsim_netlink_notify, -}; - -static int hwsim_init_netlink(void) -{ - int rc; - printk(KERN_INFO "mac80211_hwsim: initializing netlink\n"); - - wmediumd_pid = 0; - - rc = genl_register_family_with_ops(&hwsim_genl_family, - hwsim_ops, ARRAY_SIZE(hwsim_ops)); - if (rc) - goto failure; - - rc = netlink_register_notifier(&hwsim_netlink_notifier); - if (rc) - goto failure; - - return 0; - -failure: - printk(KERN_DEBUG "mac80211_hwsim: error occured in %s\n", __func__); - return -EINVAL; -} - -static void hwsim_exit_netlink(void) -{ - int ret; - - printk(KERN_INFO "mac80211_hwsim: closing netlink\n"); - /* unregister the notifier */ - netlink_unregister_notifier(&hwsim_netlink_notifier); - /* unregister the family */ - ret = genl_unregister_family(&hwsim_genl_family); - if (ret) - printk(KERN_DEBUG "mac80211_hwsim: " - "unregister family %i\n", ret); -} - -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; - skb_queue_head_init(&data->pending); - - 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); - - /* Enable frame retransmissions for lossy channels */ - hw->max_rates = 4; - hw->max_rate_tries = 11; - - /* 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; - - 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(); - - err = hwsim_init_netlink(); - if (err < 0) - goto failed_nl; - - return 0; - -failed_nl: - printk(KERN_DEBUG "mac_80211_hwsim: failed initializing netlink\n"); - return err; - -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"); - - hwsim_exit_netlink(); - - mac80211_hwsim_free(); - unregister_netdev(hwsim_mon); -} - - -module_init(init_mac80211_hwsim); -module_exit(exit_mac80211_hwsim); diff --git a/mac80211_hwsim/mac80211_hwsim.h b/mac80211_hwsim/mac80211_hwsim.h deleted file mode 100644 index afaad5a..0000000 --- a/mac80211_hwsim/mac80211_hwsim.h +++ /dev/null @@ -1,133 +0,0 @@ -/* - * mac80211_hwsim - software simulator of 802.11 radio(s) for mac80211 - * Copyright (c) 2008, Jouni Malinen - * Copyright (c) 2011, Javier Lopez - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ - -#ifndef __MAC80211_HWSIM_H -#define __MAC80211_HWSIM_H - -/** - * enum hwsim_tx_control_flags - flags to describe transmission info/status - * - * These flags are used to give the wmediumd extra information in order to - * modify its behavior for each frame - * - * @HWSIM_TX_CTL_REQ_TX_STATUS: require TX status callback for this frame. - * @HWSIM_TX_CTL_NO_ACK: tell the wmediumd not to wait for an ack - * @HWSIM_TX_STAT_ACK: Frame was acknowledged - * - */ -enum hwsim_tx_control_flags { - HWSIM_TX_CTL_REQ_TX_STATUS = BIT(0), - HWSIM_TX_CTL_NO_ACK = BIT(1), - HWSIM_TX_STAT_ACK = BIT(2), -}; - -/** - * DOC: Frame transmission/registration support - * - * Frame transmission and registration support exists to allow userspace - * entities such as wmediumd to receive and process all broadcasted - * frames from a mac80211_hwsim radio device. - * - * This allow user space applications to decide if the frame should be - * dropped or not and implement a wireless medium simulator at user space. - * - * Registration is done by sending a register message to the driver and - * will be automatically unregistered if the user application doesn't - * responds to sent frames. - * Once registered the user application has to take responsibility of - * broadcasting the frames to all listening mac80211_hwsim radio - * interfaces. - * - * For more technical details, see the corresponding command descriptions - * below. - */ - -/** - * enum hwsim_commands - supported hwsim commands - * - * @HWSIM_CMD_UNSPEC: unspecified command to catch errors - * - * @HWSIM_CMD_REGISTER: request to register and received all broadcasted - * frames by any mac80211_hwsim radio device. - * @HWSIM_CMD_FRAME: send/receive a broadcasted frame from/to kernel/user - * space, uses: - * %HWSIM_ATTR_ADDR_TRANSMITTER, %HWSIM_ATTR_ADDR_RECEIVER, - * %HWSIM_ATTR_FRAME, %HWSIM_ATTR_FLAGS, %HWSIM_ATTR_RX_RATE, - * %HWSIM_ATTR_SIGNAL, %HWSIM_ATTR_COOKIE - * @HWSIM_CMD_TX_INFO_FRAME: Transmission info report from user space to - * kernel, uses: - * %HWSIM_ATTR_ADDR_TRANSMITTER, %HWSIM_ATTR_FLAGS, - * %HWSIM_ATTR_TX_INFO, %HWSIM_ATTR_SIGNAL, %HWSIM_ATTR_COOKIE - * @__HWSIM_CMD_MAX: enum limit - */ -enum { - HWSIM_CMD_UNSPEC, - HWSIM_CMD_REGISTER, - HWSIM_CMD_FRAME, - HWSIM_CMD_TX_INFO_FRAME, - __HWSIM_CMD_MAX, -}; -#define HWSIM_CMD_MAX (_HWSIM_CMD_MAX - 1) - -/** - * enum hwsim_attrs - hwsim netlink attributes - * - * @HWSIM_ATTR_UNSPEC: unspecified attribute to catch errors - * - * @HWSIM_ATTR_ADDR_RECEIVER: MAC address of the radio device that - * the frame is broadcasted to - * @HWSIM_ATTR_ADDR_TRANSMITTER: MAC address of the radio device that - * the frame was broadcasted from - * @HWSIM_ATTR_FRAME: Data array - * @HWSIM_ATTR_FLAGS: mac80211 transmission flags, used to process - properly the frame at user space - * @HWSIM_ATTR_RX_RATE: estimated rx rate index for this frame at user - space - * @HWSIM_ATTR_SIGNAL: estimated RX signal for this frame at user - space - * @HWSIM_ATTR_TX_INFO: ieee80211_tx_rate array - * @HWSIM_ATTR_COOKIE: sk_buff cookie to identify the frame - * @__HWSIM_ATTR_MAX: enum limit - */ - - -enum { - HWSIM_ATTR_UNSPEC, - HWSIM_ATTR_ADDR_RECEIVER, - HWSIM_ATTR_ADDR_TRANSMITTER, - HWSIM_ATTR_FRAME, - HWSIM_ATTR_FLAGS, - HWSIM_ATTR_RX_RATE, - HWSIM_ATTR_SIGNAL, - HWSIM_ATTR_TX_INFO, - HWSIM_ATTR_COOKIE, - __HWSIM_ATTR_MAX, -}; -#define HWSIM_ATTR_MAX (__HWSIM_ATTR_MAX - 1) - -/** - * struct hwsim_tx_rate - rate selection/status - * - * @idx: rate index to attempt to send with - * @count: number of tries in this rate before going to the next rate - * - * A value of -1 for @idx indicates an invalid rate and, if used - * in an array of retry rates, that no more rates should be tried. - * - * When used for transmit status reporting, the driver should - * always report the rate and number of retries used. - * - */ -struct hwsim_tx_rate { - s8 idx; - u8 count; -} __packed; - -#endif /* __MAC80211_HWSIM_H */ diff --git a/mac80211_hwsim/script.sh b/mac80211_hwsim/script.sh deleted file mode 100755 index f18060d..0000000 --- a/mac80211_hwsim/script.sh +++ /dev/null @@ -1,22 +0,0 @@ -sudo modprobe mac80211 -sudo insmod mac80211_hwsim.ko radios=4 - -sudo iw dev wlan0 interface add mesh0 type mp mesh_id prueba -sudo iw dev wlan1 interface add mesh1 type mp mesh_id prueba -sudo iw dev wlan2 interface add mesh2 type mp mesh_id prueba -#sudo iw dev wlan3 interface add mesh3 type mp mesh_id prueba -sudo ip link set dev mesh0 up -sudo ip link set dev mesh1 up -sudo ip link set dev mesh2 up -#sudo ip link set dev mesh3 up - -sudo iw dev mesh0 set channel 1 -sudo iw dev mesh1 set channel 1 -sudo iw dev mesh2 set channel 1 -#sudo iw dev mesh3 set channel 1 - -sudo ifconfig mesh0 192.168.40.10 -sudo ifconfig mesh1 192.168.40.20 -sudo ifconfig mesh2 192.168.40.30 -#sudo ifconfig mesh3 192.168.40.40 - diff --git a/wmediumd/Makefile b/wmediumd/Makefile index 9220b17..531612c 100644 --- a/wmediumd/Makefile +++ b/wmediumd/Makefile @@ -44,7 +44,7 @@ CFLAGS += $(shell $(PKG_CONFIG) --cflags $(NLLIBNAME)) NLVERSION :=$(shell $(PKG_CONFIG) --print-provides $(NLLIBNAME)) CFLAGS+=-DVERSION_STR=$(VERSION_STR) -g -LDFLAGS+=-lconfig +LDFLAGS+=-lconfig -lm OBJECTS=wmediumd.o probability.o mac_address.o config.o all: wmediumd diff --git a/wmediumd/cfg-examples/mobility.cfg b/wmediumd/cfg-examples/mobility.cfg new file mode 100644 index 0000000..c423df0 --- /dev/null +++ b/wmediumd/cfg-examples/mobility.cfg @@ -0,0 +1,45 @@ +# +#wmediumd mobility extension settings +# +/* + * 0: no debug + * 1: debug active + */ +debug = 1; + +/* + * Constant coefficient applied depending on the level of interference to convert our + * medium model in a more or less interfering one. Addition of loss probability with + * a constant parameter can model that. + */ + +interference_tunner = 100; //10% of interference power, is modeled as a loss probability + +/* + * Factor to introduce probabilistic Fadings with a defined intensity modelled with two + * constants, the fading probability and the Fading Intensity Constant that would + * bee also model with a loss probability constant. + */ +fading_probability = 200; //20% of fading appearance probability +fading_intensity = 900; //90% of fading power, is modeled as a loss probability + +carrier_frequency = 2.4E+9; //2,4GHz +transmit_power = 50.0E-3; //50mW Tx used power +transmit_gain = 2.0; //3dB Tx antenna gain +receiver_gain = 2.0; //3dB Rx antenna gain +receiver_min_power = 1E-12; //-90dBm reciver sensitivity + +ifaces_with_mobility: { + count_ids = 2; + ids = ["42:00:00:00:00:00", "42:00:00:00:01:00"]; + /* + *Radio positions (time|x|y) [seconds|meters|meters] + *One row per radio on same order than radios on ids array + *Time instants must be the same per each radio row + */ + count_positions_time = 5; + positions_time_container = ( + ["1|0|0", "5|500|500", "10|2500|2500", "15|3500|3500", "20|4500|4500"], + ["1|0|0", "5|0|0", "10|0|0", "15|0|0", "20|0|0"] + ); +}; diff --git a/wmediumd/config.c b/wmediumd/config.c index 0925479..e3522e7 100644 --- a/wmediumd/config.c +++ b/wmediumd/config.c @@ -24,9 +24,11 @@ #include #include #include +#include #include "probability.h" #include "wmediumd.h" +#include "globals_mobility_medium.h" extern struct jammer_cfg jam_cfg; extern double *prob_matrix; @@ -282,3 +284,300 @@ int load_config(const char *file) config_destroy(cf); return (EXIT_SUCCESS); } + +/* + * Theoretical maximum distance in meters calculated with a link budged including free space equation + */ +void calcule_max_distance(double carr_freq, double trans_pow, double trans_gain, + double rec_gain, double rec_min_pow, double *dmax) { + + double lambda, pi = 3.14159265358979323846, c = 299792458.0, first, second, + third; + + lambda = c / carr_freq; + + first = (trans_pow * trans_gain * rec_gain) / rec_min_pow; + second = abs(pow(first,1.0/2.0)); + third = (4.0 * pi) / lambda; + + *dmax = second / third; +} + +/* + * This function prints mobility and medium configurations + */ +void print_mobility_medium_configuration() { + int i, j; + printf("===============================================\n"); + printf(" PRINT MOBILITI MEDIUM CONFIGURATION \n"); + printf("===============================================\n\n"); + printf("dmax = %f [meters](theoretical max distance)\n", + mob_med_cfg.dmax); + printf( + "interference_tunner= %d (modeled with additional loss probability of %d %)\n", + mob_med_cfg.interference_tunner, + (mob_med_cfg.interference_tunner * 100 / 1000)); + printf("fading_probability = %d (probability that fading appears %d %)\n", + mob_med_cfg.fading_probability, + (mob_med_cfg.fading_probability * 100 / 1000)); + printf( + "fading_intensity = %d (fading intensity modeled with additional loss probability %d %)\n", + mob_med_cfg.fading_intensity, + (mob_med_cfg.fading_intensity * 100 / 1000)); + printf("count_ids = %d\n\n", mob_med_cfg.count_ids); + printf("MAC ADRESSES"); + for (i = 0; i < mob_med_cfg.count_ids; i++) { + printf("\n\nA[%d]:%02X:%02X:%02X:%02X:%02X:%02X\n", i, + mob_med_cfg.radios[i].mac.addr[0], + mob_med_cfg.radios[i].mac.addr[1], + mob_med_cfg.radios[i].mac.addr[2], + mob_med_cfg.radios[i].mac.addr[3], + mob_med_cfg.radios[i].mac.addr[4], + mob_med_cfg.radios[i].mac.addr[5]); + printf("Radio positions (time|x|y) [seconds|meters|meters] :\n"); + for (j = 0; j < mob_med_cfg.radios[i].count_positions; j++) { + printf("%.1f|%d|%d", mob_med_cfg.radios[i].positions[j].time, + mob_med_cfg.radios[i].positions[j].x, + mob_med_cfg.radios[i].positions[j].y); + if (j < mob_med_cfg.radios[i].count_positions - 1) + printf(" -> "); + + } + + } + printf("\n===============================================\n"); + printf(" END \n"); + printf("===============================================\n"); +} + +/* + * Load required mobility and medium params from config file + */ +int load_mobility_medium_config(const char *file) { + + config_t cfg, *cf; + const config_setting_t *retries, *pos_time_list, *mat_array; + const char *base = NULL; + int count, n; + double carrier_frequency, transmit_power, transmit_gain, receiver_gain, + receiver_min_power; + + cf = &cfg; + config_init(cf); + + //Check if config file is readable + if (!config_read_file(cf, file)) { + printf("Error loading file %s at line:%d, reason: %s\n", file, + config_error_line(cf), config_error_text(cf)); + config_destroy(cf); + exit(EXIT_FAILURE); + } + + //Variable reading and writting to settings struct mob_med_cfg + //Read of permanent data + if (config_lookup_int(cf, "debug", (int *) &mob_med_cfg.debug) != CONFIG_TRUE) { + printf("\n\nError reading config file parameter: debug.\n\n"); + exit(EXIT_FAILURE); + } + if (config_lookup_int(cf, "interference_tunner", + (int *) &mob_med_cfg.interference_tunner) != CONFIG_TRUE) { + printf( + "\n\nError reading config file parameter: interference_tunner.\n\n"); + exit(EXIT_FAILURE); + } + if (config_lookup_int(cf, "fading_probability", + (int *) &mob_med_cfg.fading_probability) != CONFIG_TRUE) { + printf( + "\n\nError reading config file parameter: fading_probability.\n\n"); + exit(EXIT_FAILURE); + } + if (config_lookup_int(cf, "fading_intensity", + (int *) &mob_med_cfg.fading_intensity) != CONFIG_TRUE) { + printf( + "\n\nError reading config file parameter: fading_intensity.\n\n"); + exit(EXIT_FAILURE); + } + + //Read of temporal data to calculate dmax + if (config_lookup_float(cf, "carrier_frequency", + (double *) &carrier_frequency) != CONFIG_TRUE) { + printf( + "\n\nError reading config file parameter: carrier_frequency.\n\n"); + exit(EXIT_FAILURE); + } + if (config_lookup_float(cf, "transmit_power", + (double *) &transmit_power)!= CONFIG_TRUE) { + printf("\n\nError reading config file parameter: transmit_power.\n\n"); + exit(EXIT_FAILURE); + } + if (config_lookup_float(cf, "transmit_gain", + (double *) &transmit_gain) != CONFIG_TRUE) { + printf("\n\nError reading config file parameter: transmit_gain.\n\n"); + exit(EXIT_FAILURE); + } + if (config_lookup_float(cf, "receiver_gain", + (double *) &receiver_gain) != CONFIG_TRUE) { + printf("\n\nError reading config file parameter: receiver_gain.\n\n"); + exit(EXIT_FAILURE); + } + if (config_lookup_float(cf, "receiver_min_power", + (double *) &receiver_min_power) != CONFIG_TRUE) { + printf( + "\n\nError reading config file parameter: receiver_min_power.\n\n"); + exit(EXIT_FAILURE); + } + + if (mob_med_cfg.debug == 1) { + printf("=================DEBUG INFO====================\n"); + printf("carrier_frequency: %f [Hz]\n", carrier_frequency); + printf("transmit_power: %f [Watts]\n", transmit_power); + printf("transmit_gain: %f [Linear]\n", transmit_gain); + printf("receiver_gain: %f [Linear] \n", receiver_gain); + printf("receiver_min_power: %.15f [Watts]\n", receiver_min_power); + } + + //Calculate dmax + calcule_max_distance(carrier_frequency, transmit_power, transmit_gain, + receiver_gain, receiver_min_power, &mob_med_cfg.dmax); + + int i, j, count_radios, count_ids, pos_time_list_lenght; + config_setting_t *ids; + config_lookup_int(cf, "ifaces_with_mobility.count_ids", + (int *) &count_radios); + + mob_med_cfg.radios= malloc(count_radios * sizeof(struct radio_mobility)); + + ids = config_lookup(cf, "ifaces_with_mobility.ids"); + mob_med_cfg.count_ids = config_setting_length(ids); + + //Cross check + if (count_radios != mob_med_cfg.count_ids) { + printf("\n\nError reading config file parameter: count_ids.\n\n"); + exit(EXIT_FAILURE); + } + + //Fill the mac_addr + for (i = 0; i < mob_med_cfg.count_ids; i++) { + config_lookup_int(cf, "ifaces_with_mobility.count_positions_time", + (int *) &mob_med_cfg.radios[i].count_positions); + const char *str = config_setting_get_string_elem(ids, i); + mob_med_cfg.radios[i].positions = malloc(mob_med_cfg.radios[i].count_positions * sizeof(struct position_time)); + mob_med_cfg.radios[i].mac = string_to_mac_address(str); + } + + pos_time_list = config_lookup(cf, + "ifaces_with_mobility.positions_time_container"); + + //Get lenght + pos_time_list_lenght = config_setting_length(pos_time_list); + + //Some checks + if (count_radios != pos_time_list_lenght) { + printf( + "\n\nError reading config file parameter: ifaces_with_mobility.positions_time_container.\n\n"); + exit(EXIT_FAILURE); + } + + const char *temp; + //Iterate all matrix arrays + for (i = 0; i < pos_time_list_lenght; i++) { + mat_array = config_setting_get_elem(pos_time_list, i); + //Iterate all values on matrix array + for (j = 0; j < config_setting_length(mat_array);) { + temp = config_setting_get_string_elem(mat_array, j); + //printf("%s \n ", temp); + sscanf(temp, "%f|%d|%d", &mob_med_cfg.radios[i].positions[j].time, + &mob_med_cfg.radios[i].positions[j].x, + &mob_med_cfg.radios[i].positions[j].y); + //printf("on ram memory: %f|%d|%d| \n ", + // mob_med_cfg.radios[i].positions[j].time, + // mob_med_cfg.radios[i].positions[j].x, + // mob_med_cfg.radios[i].positions[j].y); + j++; + } + } + + //Print the mobility settings + print_mobility_medium_configuration(); + + config_destroy(cf); + return 0; + +} + + +/* + * Alternative function to load_config() to load app required data without probability matrix. + */ +int load_basic_config(const char *file) { + + config_t cfg, *cf; + const config_setting_t *ids, *prob_list, *mat_array, *jammer_s; + int count_ids, rates_prob, i, j; + int count_value, rates_value; + + /*initialize the config file*/ + cf = &cfg; + config_init(cf); + + /*read the file*/ + if (!config_read_file(cf, file)) { + printf("Error loading file %s at line:%d, reason: %s\n", file, + config_error_line(cf), config_error_text(cf)); + config_destroy(cf); + exit(EXIT_FAILURE); + } + + /* get jammer settings */ + if ((jammer_s = config_lookup(cf, "jam"))) { + switch (config_setting_type(jammer_s)) { + case CONFIG_TYPE_STRING: + if (!strcmp(config_setting_get_string(jammer_s), "all")) { + jam_cfg.jam_all = 1; + } + break; + case CONFIG_TYPE_ARRAY: + jam_cfg.nmacs = config_setting_length(jammer_s); + jam_cfg.macs = malloc(sizeof(struct mac_address) * jam_cfg.nmacs); + if (!jam_cfg.macs) { + printf("couldn't allocate jamming mac table!\n"); + exit(EXIT_FAILURE); + } + for (i = 0; i < jam_cfg.nmacs; i++) { + jam_cfg.macs[i] = string_to_mac_address( + config_setting_get_string_elem(jammer_s, i)); + } + break; + } + } + + /*let's parse the values*/ + config_lookup_int(cf, "ifaces_with_mobility.count_ids", + (int *) &count_value); + ids = config_lookup(cf, "ifaces_with_mobility.ids"); + count_ids = config_setting_length(ids); + size = count_ids; + /*cross check*/ + if (count_value != count_ids) { + printf("Error on ifaces_with_mobility.count_ids"); + exit(EXIT_FAILURE); + } + + printf("#_if = %d\n", count_ids); + /*Initialize the probability*/ + prob_matrix = init_probability(count_ids); + /*Fill the mac_addr*/ + for (i = 0; i < count_ids; i++) { + const char *str = config_setting_get_string_elem(ids, i); + put_mac_address(string_to_mac_address(str), i); + } + + /*Print the mac_addr array*/ + print_mac_address_array(); + + config_destroy(cf); + return (EXIT_SUCCESS); +} + + + diff --git a/wmediumd/globals_mobility_medium.h b/wmediumd/globals_mobility_medium.h new file mode 100644 index 0000000..55a46a6 --- /dev/null +++ b/wmediumd/globals_mobility_medium.h @@ -0,0 +1,13 @@ + +#ifndef SHAREFILE_INCLUDED +#define SHAREFILE_INCLUDED +#ifdef MAIN_FILE + +struct mobility_medium_cfg mob_med_cfg; + +#else + +extern struct mobility_medium_cfg mob_med_cfg; + +#endif +#endif diff --git a/wmediumd/probability.c b/wmediumd/probability.c index d6e4f0e..22ec724 100644 --- a/wmediumd/probability.c +++ b/wmediumd/probability.c @@ -26,6 +26,11 @@ #include #include +#include "globals_mobility_medium.h" +#include +#include +#include "wmediumd.h" + #include "probability.h" #include "ieee80211.h" @@ -157,8 +162,99 @@ double find_prob_by_addrs_and_rate (double *aMatrix, struct mac_address *src, } +/* + * Returns the loss probability for a given radio link, mobility and medium + * If an error occurs returns -1; + */ + +int find_prob_by_addrs_mobility_and_medium(struct mac_address *src, + struct mac_address *dst) { + + //Probabilities are defined per 1000 units to perform them using integers + int random_value = rand() % 1000 + 1, distance_prob = 0, loss_probability = + 0, fading = 0, src_radio_pos, dst_radio_pos, time_pos; + unsigned long int execution_time; + + struct timeval current_time; + gettimeofday(¤t_time, NULL ); + + execution_time = current_time.tv_sec - mob_med_cfg.start_execution_timestamp; + + src_radio_pos = find_radio_pos_by_mac_address(src); + dst_radio_pos = find_radio_pos_by_mac_address(dst); + //Both stations need to have same time line definition, for that we can use or src or dst to take the time. + if (execution_time + > (int) mob_med_cfg.radios[src_radio_pos].positions[(mob_med_cfg.last_def_position + + 1)].time + && mob_med_cfg.last_def_position + < (mob_med_cfg.radios[src_radio_pos].count_positions - 1)) { + mob_med_cfg.last_def_position++; + mob_med_cfg.dcurrent = + find_distance_two_points( + mob_med_cfg.radios[src_radio_pos].positions[mob_med_cfg.last_def_position].x, + mob_med_cfg.radios[src_radio_pos].positions[mob_med_cfg.last_def_position].y, + mob_med_cfg.radios[dst_radio_pos].positions[mob_med_cfg.last_def_position].x, + mob_med_cfg.radios[dst_radio_pos].positions[mob_med_cfg.last_def_position].y); /*meters*/ + } + + if (mob_med_cfg.dcurrent <= mob_med_cfg.dmax / 4) { + distance_prob = 0; + } else { + distance_prob = (((float) mob_med_cfg.dcurrent - (float) mob_med_cfg.dmax / 4.0) + / ((float) mob_med_cfg.dmax - ((float) mob_med_cfg.dmax / 4.0))) + * 1000; //1000 is a scale factor + } + + if (random_value < mob_med_cfg.fading_probability) { + fading = mob_med_cfg.fading_intensity; + } else { + fading = 0; + } + loss_probability = distance_prob + mob_med_cfg.interference_tunner + fading; + + if (mob_med_cfg.debug == 1) { + printf( + "DEBUG INFO. POSITIONS: p1=(%d,%d) p2=(%d,%d) EXEC_TIME: %dsec. LAST_ARR_INDEX: %d DISTANCE_BETWEEN_TX_RX: %d\n", + mob_med_cfg.radios[src_radio_pos].positions[mob_med_cfg.last_def_position].x, + mob_med_cfg.radios[src_radio_pos].positions[mob_med_cfg.last_def_position].y, + mob_med_cfg.radios[dst_radio_pos].positions[mob_med_cfg.last_def_position].x, + mob_med_cfg.radios[dst_radio_pos].positions[mob_med_cfg.last_def_position].y, + (int)execution_time, mob_med_cfg.last_def_position, mob_med_cfg.dcurrent); + + printf( + "PROBABILITIES. random_value %d | distance_prob %d (%d%) | loss_probability %d (%d%) | fading %d| dcurrent %d | dmax %d \n", + random_value, distance_prob, (distance_prob / 10), + loss_probability, (loss_probability / 10), fading, mob_med_cfg.dcurrent, + (int) mob_med_cfg.dmax); + } + return loss_probability; +} + +/* + * Returns the position inside the radios array given a mac_address + */ +int find_radio_pos_by_mac_address(struct mac_address *addr) { + + int i = 0; + + while (memcmp(&mob_med_cfg.radios[i].mac, addr, sizeof(struct mac_address)) + != 0 && i < mob_med_cfg.count_ids) { + i++; + } + + return i; +} + +/* + * Calculates the distance between two points on a 2D plane + */ +int find_distance_two_points(int x1, int y1, int x2, int y2) { + + return sqrt(pow(x2 - x1, 2) + pow(y2 - y1, 2)); + +} /* * Init all the probability data diff --git a/wmediumd/tests/test-001.cfg b/wmediumd/tests/test-001-probabilities-no-mobility/test-001.cfg similarity index 100% rename from wmediumd/tests/test-001.cfg rename to wmediumd/tests/test-001-probabilities-no-mobility/test-001.cfg diff --git a/wmediumd/tests/test-001.sh b/wmediumd/tests/test-001-probabilities-no-mobility/test-001.sh similarity index 100% rename from wmediumd/tests/test-001.sh rename to wmediumd/tests/test-001-probabilities-no-mobility/test-001.sh diff --git a/wmediumd/tests/test-002-probabilities-with-mobility/first_terminal.sh b/wmediumd/tests/test-002-probabilities-with-mobility/first_terminal.sh new file mode 100755 index 0000000..82f6468 --- /dev/null +++ b/wmediumd/tests/test-002-probabilities-with-mobility/first_terminal.sh @@ -0,0 +1,74 @@ +#! /bin/bash +showmenu () +{ + typeset ii + for ii in "${options[@]}" + do + echo " $ii" + done + read -e -p 'Select an action : ---------- ' -a answer +} + +typeset -r c1=#2--Create_new_network_namespace +typeset -r c2=#3--After_Kill_echo_PID +typeset -r c3=#7--Configure_already_asigned_interface +typeset -r c4=#11-Do_PINGs_to_the_other_station_192.168.4.2 +typeset -r c5=#13-TEST_capture_traffic_on_the_interface +typeset -r c6=#-1--Quit +typeset -ra options=($c1 $c2 $c3 $c4 $c5 $c6) +typeset -a answer +typeset -i kk + +while true +do + showmenu + for kk in "${answer[@]}" + do + case $kk in + 2) + echo 'Create new network namespace. Script will day call it again using next step. ./first_terminal.sh' + echo './first_terminal.sh' + sudo unshare -n bash + ;; + 3) + echo '##########' + echo $$ + echo '##########' + echo 'DONE' + ;; + 7) + echo 'Configure already asigned interface' + read -e -p 'Number of first phy interface: ' -a phy1 + sudo iwconfig + sudo iw phy phy$phy1 interface add mesh1 type mesh + sudo ifconfig + sudo ip address add dev mesh1 192.168.4.1/24 + sudo ip link set mesh1 up + sudo iw dev mesh1 mesh join bazooka + sudo ifconfig lo up + sudo ifconfig + sudo ping -c 20 192.168.4.2 + sudo ifconfig + echo 'DONE' + ;; + 11) + echo 'Doing pings to 192.168.4.2' + ping 192.168.4.2 + ;; + 13) + echo 'TEST capture traffic on interface' + read -e -p 'Number of first phy interface: ' -a phy1 + sudo iw phy phy$phy1 interface add mon1 type monitor + sudo iw dev mon1 set channel 1 HT40+ + sudo ip link set mon1 up + sudo tcpdump -i mon1 -p -w /tmp/mon1_phy1.cap & + #ping -c 50 192.168.4.2 + mgen input send_mgen.mgn + ;; + -1) + echo 'Program Exit' + exit 0 + ;; + esac + done +done diff --git a/wmediumd/tests/test-002-probabilities-with-mobility/main_terminal.sh b/wmediumd/tests/test-002-probabilities-with-mobility/main_terminal.sh new file mode 100755 index 0000000..18e8712 --- /dev/null +++ b/wmediumd/tests/test-002-probabilities-with-mobility/main_terminal.sh @@ -0,0 +1,99 @@ +#! /bin/bash + +WIFI_SSID="WLAN_JV" +WIFI_KEY="A5BF7B01D44B13DB4670A8CA36" +#See http://askubuntu.com/questions/138472/how-do-i-connect-to-a-wpa-wifi-network-using-the-command-linen for WPA wiFi + +PATH_WMEDIUMD=$(cd ../.. && pwd) + +showmenu () +{ + typeset ii + for ii in "${options[@]}" + do + echo " $ii" + done + read -e -p 'Select an action : ---------- ' -a answer +} + +typeset -r c1=#0--Stop_network_manager_and_configuring_network +typeset -r c2=#1--Load_emuled_radios_with_mac80211_hwsim +typeset -r c3=#6--Asign_radios_to_network_namespaces +typeset -r c4=#9--Clean_and_COMPILE_wmediumd +typeset -r c5=#10-LAUNCH_wmediumd_probabilities +typeset -r c6=#12-LAUNCH_wmediumd_mobility +typeset -r c7=#-1--Quit +typeset -ra options=($c1 $c2 $c3 $c4 $c5 $c6 $c7) +typeset -a answer +typeset -i kk + +while true +do + showmenu + for kk in "${answer[@]}" + do + case $kk in + 0) + echo 'Stop network manager and configuring network' + sudo /etc/init.d/network-manager stop + echo 2 + sudo ifconfig wlan0 up + echo 3 + #sudo iwconfig wlan0 essid $WIFI_SSID + echo 4 + sleep 3 + #sudo iwconfig wlan0 essid $WIFI_SSID key $WIFI_KEY + #sleep 3 + #sudo iwconfig wlan0 essid $WIFI_SSID key $WIFI_KEY + sudo wpa_supplicant -B -iwlan0 -c/etc/wpa_supplicant.conf -Dwext && dhclient wlan0 + echo 5 + sudo dhclient wlan0 + sleep 3 + ping -c 5 8.8.8.8 + echo 'DONE' + ;; + 1) + echo 'Load emuled radios with mac80211_hwsim' + sudo rmmod mac80211_hwsim + sudo modprobe mac80211_hwsim radios=2 + echo '##########' + sudo find /sys/kernel/debug/ieee80211 -name hwsim | cut -d/ -f 6 | sort + echo '##########' + echo 'DONE' + ;; + 6) + echo 'Asign radios to network namespaces' + read -e -p 'Number of first phy interface: ' -a phy1 + read -e -p 'PID of first network namespace: ' -a pid1 + phy2=$(($phy1 + 1)) + read -e -p 'PID of second network namespace: ' -a pid2 + sudo iw phy phy$phy1 set netns $pid1 + sudo iw phy phy$phy2 set netns $pid2 + echo 'DONE' + ;; + 9) + echo 'Compile wmediumd' + echo 'START CLEAN' + make clean -C $PATH_WMEDIUMD + echo 'END CLEAN' + echo '==============================================================' + echo 'START COMPILE' + make -C $PATH_WMEDIUMD + echo 'END COMPILE' + echo '==============================================================' + ;; + 10) + echo 'Launch wmediumd with probabilities' + sudo $PATH_WMEDIUMD/wmediumd -c $PATH_WMEDIUMD/cfg-examples/probabilities.cfg + ;; + 12) + echo 'Launch wmediumd with mobility' + sudo $PATH_WMEDIUMD/wmediumd -m $PATH_WMEDIUMD/tests/test-002-probabilities-with-mobility/mobility.cfg + ;; + -1) + echo 'Program Exit' + exit 0 + ;; + esac + done +done diff --git a/wmediumd/tests/test-002-probabilities-with-mobility/mobility.cfg b/wmediumd/tests/test-002-probabilities-with-mobility/mobility.cfg new file mode 100644 index 0000000..c423df0 --- /dev/null +++ b/wmediumd/tests/test-002-probabilities-with-mobility/mobility.cfg @@ -0,0 +1,45 @@ +# +#wmediumd mobility extension settings +# +/* + * 0: no debug + * 1: debug active + */ +debug = 1; + +/* + * Constant coefficient applied depending on the level of interference to convert our + * medium model in a more or less interfering one. Addition of loss probability with + * a constant parameter can model that. + */ + +interference_tunner = 100; //10% of interference power, is modeled as a loss probability + +/* + * Factor to introduce probabilistic Fadings with a defined intensity modelled with two + * constants, the fading probability and the Fading Intensity Constant that would + * bee also model with a loss probability constant. + */ +fading_probability = 200; //20% of fading appearance probability +fading_intensity = 900; //90% of fading power, is modeled as a loss probability + +carrier_frequency = 2.4E+9; //2,4GHz +transmit_power = 50.0E-3; //50mW Tx used power +transmit_gain = 2.0; //3dB Tx antenna gain +receiver_gain = 2.0; //3dB Rx antenna gain +receiver_min_power = 1E-12; //-90dBm reciver sensitivity + +ifaces_with_mobility: { + count_ids = 2; + ids = ["42:00:00:00:00:00", "42:00:00:00:01:00"]; + /* + *Radio positions (time|x|y) [seconds|meters|meters] + *One row per radio on same order than radios on ids array + *Time instants must be the same per each radio row + */ + count_positions_time = 5; + positions_time_container = ( + ["1|0|0", "5|500|500", "10|2500|2500", "15|3500|3500", "20|4500|4500"], + ["1|0|0", "5|0|0", "10|0|0", "15|0|0", "20|0|0"] + ); +}; diff --git a/wmediumd/tests/test-002-probabilities-with-mobility/scenario.png b/wmediumd/tests/test-002-probabilities-with-mobility/scenario.png new file mode 100644 index 0000000..f6a27b9 Binary files /dev/null and b/wmediumd/tests/test-002-probabilities-with-mobility/scenario.png differ diff --git a/wmediumd/tests/test-002-probabilities-with-mobility/second_terminal.sh b/wmediumd/tests/test-002-probabilities-with-mobility/second_terminal.sh new file mode 100755 index 0000000..9bc2269 --- /dev/null +++ b/wmediumd/tests/test-002-probabilities-with-mobility/second_terminal.sh @@ -0,0 +1,71 @@ +#! /bin/bash +showmenu () +{ + typeset ii + for ii in "${options[@]}" + do + echo " $ii" + done + read -e -p 'Select an action : ---------- ' -a answer +} + +typeset -r c1=#4--Create_new_network_namespace +typeset -r c2=#5--After_Kill_echo_PID +typeset -r c3=#8--Configure_already_asigned_interface +typeset -r c4=#11-Do_PINGs_to_the_other_station_192.168.4.1 +typeset -r c5=#13-TEST_capture_traffic_on_the_interface +typeset -r c6=#-1--Quit +typeset -ra options=($c1 $c2 $c3 $c4 $c5 $c6) +typeset -a answer +typeset -i kk + +while true +do + showmenu + for kk in "${answer[@]}" + do + case $kk in + 4) + echo 'Create new network namespace. Script will day call it again using next step. ./second_terminal.sh' + echo './second_terminal.sh' + sudo unshare -n bash + ;; + 5) + echo '##########' + echo $$ + echo '##########' + echo 'DONE' + ;; + 8) + echo 'Configure already asigned interface' + read -e -p 'Number of second phy interface: ' -a phy2 + iwconfig + sudo iw phy phy$phy2 interface add mesh2 type mesh + sudo ip address add dev mesh2 192.168.4.2/24 + sudo ip link set mesh2 up + sudo iw dev mesh2 mesh join bazooka + sudo ifconfig lo up + sudo ping -c 10 192.168.4.1 + sudo ifconfig + echo 'DONE' + ;; + 11) + echo 'Doing pings to 192.168.4.1' + ping 192.168.4.1 + ;; + 13) + echo 'TEST capture traffic on interface' + read -e -p 'Number of second phy interface: ' -a phy2 + sudo iw phy phy$phy2 interface add mon2 type monitor + sudo iw dev mon2 set channel 1 HT40+ + sudo ip link set mon2 up + mgen input listen_mgen.mgn & + sudo tcpdump -i mon2 -p -w /tmp/mon2_phy2.cap + ;; + -1) + echo 'Program Exit' + exit 0 + ;; + esac + done +done diff --git a/wmediumd/tests/test-002-probabilities-with-mobility/uml_activity_diagram.png b/wmediumd/tests/test-002-probabilities-with-mobility/uml_activity_diagram.png new file mode 100644 index 0000000..8044f9f Binary files /dev/null and b/wmediumd/tests/test-002-probabilities-with-mobility/uml_activity_diagram.png differ diff --git a/wmediumd/wmediumd.c b/wmediumd/wmediumd.c index c2e650b..ab86d82 100644 --- a/wmediumd/wmediumd.c +++ b/wmediumd/wmediumd.c @@ -40,6 +40,9 @@ struct nl_cb *cb; struct nl_cache *cache; struct genl_family *family; +#define MAIN_FILE +#include "globals_mobility_medium.h" + int running = 0; struct jammer_cfg jam_cfg; double *prob_matrix; @@ -50,56 +53,50 @@ static int sent = 0; static int dropped = 0; static int acked = 0; - /* * Generates a random double value */ -double generate_random_double() -{ +double generate_random_double() { - return rand()/((double)RAND_MAX+1); + return rand() / ((double) RAND_MAX + 1); } /* * Send a tx_info frame to the kernel space. */ -int send_tx_info_frame_nl(struct mac_address *src, - unsigned int flags, int signal, - struct hwsim_tx_rate *tx_attempts, - unsigned long cookie) -{ +int send_tx_info_frame_nl(struct mac_address *src, unsigned int flags, + int signal, struct hwsim_tx_rate *tx_attempts, unsigned long cookie) { struct nl_msg *msg = nlmsg_alloc(); if (!msg) { printf("Error allocating new message MSG!\n"); goto out; } - genlmsg_put(msg, NL_AUTO_PID, NL_AUTO_SEQ, genl_family_get_id(family), - 0, NLM_F_REQUEST, HWSIM_CMD_TX_INFO_FRAME, VERSION_NR); + genlmsg_put(msg, NL_AUTO_PID, NL_AUTO_SEQ, genl_family_get_id(family), 0, + NLM_F_REQUEST, HWSIM_CMD_TX_INFO_FRAME, VERSION_NR); int rc; - rc = nla_put(msg, HWSIM_ATTR_ADDR_TRANSMITTER, - sizeof(struct mac_address), src); + rc = nla_put(msg, HWSIM_ATTR_ADDR_TRANSMITTER, sizeof(struct mac_address), + src); rc = nla_put_u32(msg, HWSIM_ATTR_FLAGS, flags); rc = nla_put_u32(msg, HWSIM_ATTR_SIGNAL, signal); rc = nla_put(msg, HWSIM_ATTR_TX_INFO, - IEEE80211_MAX_RATES_PER_TX * - sizeof(struct hwsim_tx_rate), tx_attempts); + IEEE80211_MAX_RATES_PER_TX * sizeof(struct hwsim_tx_rate), + tx_attempts); rc = nla_put_u64(msg, HWSIM_ATTR_COOKIE, cookie); - if(rc!=0) { + if (rc != 0) { printf("Error filling payload\n"); goto out; } - nl_send_auto_complete(sock,msg); + nl_send_auto_complete(sock, msg); nlmsg_free(msg); return 0; -out: - nlmsg_free(msg); + out: nlmsg_free(msg); return -1; } @@ -107,35 +104,33 @@ int send_tx_info_frame_nl(struct mac_address *src, * Send a cloned frame to the kernel space. */ -int send_cloned_frame_msg(struct mac_address *dst, - char *data, int data_len, int rate_idx, int signal) -{ +int send_cloned_frame_msg(struct mac_address *dst, char *data, int data_len, + int rate_idx, int signal) { struct nl_msg *msg = nlmsg_alloc(); if (!msg) { printf("Error allocating new message MSG!\n"); goto out; } - genlmsg_put(msg, NL_AUTO_PID, NL_AUTO_SEQ, genl_family_get_id(family), - 0, NLM_F_REQUEST, HWSIM_CMD_FRAME, VERSION_NR); + genlmsg_put(msg, NL_AUTO_PID, NL_AUTO_SEQ, genl_family_get_id(family), 0, + NLM_F_REQUEST, HWSIM_CMD_FRAME, VERSION_NR); int rc; - rc = nla_put(msg, HWSIM_ATTR_ADDR_RECEIVER, - sizeof(struct mac_address), dst); + rc = nla_put(msg, HWSIM_ATTR_ADDR_RECEIVER, sizeof(struct mac_address), + dst); rc = nla_put(msg, HWSIM_ATTR_FRAME, data_len, data); rc = nla_put_u32(msg, HWSIM_ATTR_RX_RATE, rate_idx); rc = nla_put_u32(msg, HWSIM_ATTR_SIGNAL, signal); - if(rc!=0) { + if (rc != 0) { printf("Error filling payload\n"); goto out; } - nl_send_auto_complete(sock,msg); + nl_send_auto_complete(sock, msg); nlmsg_free(msg); return 0; -out: - nlmsg_free(msg); + out: nlmsg_free(msg); return -1; } @@ -143,10 +138,9 @@ int send_cloned_frame_msg(struct mac_address *dst, * Get a signal value by rate index */ -int get_signal_by_rate(int rate_idx) -{ - const int rate2signal [] = - { -80,-77,-74,-71,-69,-66,-64,-62,-59,-56,-53,-50 }; +int get_signal_by_rate(int rate_idx) { + const int rate2signal[] = { -80, -77, -74, -71, -69, -66, -64, -62, -59, + -56, -53, -50 }; if (rate_idx >= 0 || rate_idx < IEEE80211_AVAILABLE_RATES) return rate2signal[rate_idx]; return 0; @@ -157,13 +151,11 @@ int get_signal_by_rate(int rate_idx) */ int send_frame_msg_apply_prob_and_rate(struct mac_address *src, - struct mac_address *dst, - char *data, int data_len, int rate_idx) -{ + struct mac_address *dst, char *data, int data_len, int rate_idx) { /* At higher rates higher loss probability*/ - double prob_per_link = find_prob_by_addrs_and_rate(prob_matrix, - src,dst, rate_idx); + double prob_per_link = find_prob_by_addrs_and_rate(prob_matrix, src, dst, + rate_idx); double random_double = generate_random_double(); if (random_double < prob_per_link) { @@ -176,7 +168,36 @@ int send_frame_msg_apply_prob_and_rate(struct mac_address *src, /*received signal level*/ int signal = get_signal_by_rate(rate_idx); - send_cloned_frame_msg(dst,data,data_len,rate_idx,signal); + send_cloned_frame_msg(dst, data, data_len, rate_idx, signal); + sent++; + return 1; + } +} + +/* + * Send a frame applying the loss probability of the link + */ + +int send_frame_msg_apply_prob_mobility_and_medium(struct mac_address *src, + struct mac_address *dst, char *data, int data_len, int rate_idx) { + /*Probabilities are defined per 1000 units to perform them using integers*/ + int random_value = rand() % 1000 + 1; + + int loss_probability = find_prob_by_addrs_mobility_and_medium(src, dst); + + //printf("random_value < loss_probability: %d < %d\n", random_value, loss_probability); + + if (random_value < loss_probability) { + printf("Dropped\n"); + dropped++; + return 0; + } else { + + printf("Sent\n"); + /*received signal level*/ + int signal = get_signal_by_rate(rate_idx); + + send_cloned_frame_msg(dst, data, data_len, rate_idx, signal); sent++; return 1; } @@ -186,12 +207,11 @@ int send_frame_msg_apply_prob_and_rate(struct mac_address *src, * Set a tx_rate struct to not valid values */ -void set_all_rates_invalid(struct hwsim_tx_rate* tx_rate) -{ +void set_all_rates_invalid(struct hwsim_tx_rate* tx_rate) { int i; /* set up all unused rates to be -1 */ - for (i=0; i < IEEE80211_MAX_RATES_PER_TX; i++) { - tx_rate[i].idx = -1; + for (i = 0; i < IEEE80211_MAX_RATES_PER_TX; i++) { + tx_rate[i].idx = -1; tx_rate[i].count = 0; } } @@ -199,8 +219,7 @@ void set_all_rates_invalid(struct hwsim_tx_rate* tx_rate) /* * Determine whether we should be jamming this transmitting mac. */ -int jam_mac(struct jammer_cfg *jcfg, struct mac_address *src) -{ +int jam_mac(struct jammer_cfg *jcfg, struct mac_address *src) { int jam = 0, i; for (i = 0; i < jcfg->nmacs; i++) { @@ -217,13 +236,11 @@ int jam_mac(struct jammer_cfg *jcfg, struct mac_address *src) */ void send_frames_to_radios_with_retries(struct mac_address *src, char*data, - int data_len, unsigned int flags, - struct hwsim_tx_rate *tx_rates, - unsigned long cookie) -{ + int data_len, unsigned int flags, struct hwsim_tx_rate *tx_rates, + unsigned long cookie) { struct mac_address *dst; - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)data; + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) data; struct hwsim_tx_rate tx_attempts[IEEE80211_MAX_RATES_PER_TX]; int round = 0, tx_ok = 0, counter, i; @@ -235,39 +252,39 @@ void send_frames_to_radios_with_retries(struct mac_address *src, char*data, /* We prepare the tx_attempts struct */ set_all_rates_invalid(tx_attempts); - while (round < IEEE80211_MAX_RATES_PER_TX && - tx_rates[round].idx != -1 && tx_ok!=1) { + while (round < IEEE80211_MAX_RATES_PER_TX && tx_rates[round].idx != -1 + && tx_ok != 1) { counter = 1; /* Set rate index and flags used for this round */ tx_attempts[round].idx = tx_rates[round].idx; - while(counter <= tx_rates[round].count && tx_ok !=1 ) { + while (counter <= tx_rates[round].count && tx_ok != 1) { /* Broadcast the frame to all the radio ifaces*/ - for (i=0;iaddr1, - sizeof(struct mac_address))==0) { + if (send_frame_msg_apply_prob_and_rate(src, dst, data, data_len, tx_attempts[round].idx) + && memcmp(dst, hdr->addr1, sizeof(struct mac_address)) == 0) { tx_ok = 1; + } + } else if (mob_med_cfg.mobility == 1) { + if (send_frame_msg_apply_prob_mobility_and_medium(src, dst, data, data_len, tx_attempts[round].idx) + && memcmp(dst, hdr->addr1, sizeof(struct mac_address)) == 0) { + tx_ok = 1; + } } } tx_attempts[round].count = counter; @@ -279,9 +296,9 @@ void send_frames_to_radios_with_retries(struct mac_address *src, char*data, if (tx_ok) { /* if tx is done and acked a frame with the tx_info is * sent to original radio iface - */ + */ acked++; - int signal = get_signal_by_rate(tx_attempts[round-1].idx); + int signal = get_signal_by_rate(tx_attempts[round - 1].idx); /* Let's flag this frame as ACK'ed */ flags |= HWSIM_TX_STAT_ACK; send_tx_info_frame_nl(src, flags, signal, tx_attempts, cookie); @@ -294,37 +311,33 @@ void send_frames_to_radios_with_retries(struct mac_address *src, char*data, * Callback function to process messages received from kernel */ -static int process_messages_cb(struct nl_msg *msg, void *arg) -{ +static int process_messages_cb(struct nl_msg *msg, void *arg) { - struct nlattr *attrs[HWSIM_ATTR_MAX+1]; + struct nlattr *attrs[HWSIM_ATTR_MAX + 1]; /* netlink header */ struct nlmsghdr *nlh = nlmsg_hdr(msg); /* generic netlink header*/ struct genlmsghdr *gnlh = nlmsg_data(nlh); - if(gnlh->cmd == HWSIM_CMD_FRAME) { + if (gnlh->cmd == HWSIM_CMD_FRAME) { /* we get the attributes*/ genlmsg_parse(nlh, 0, attrs, HWSIM_ATTR_MAX, NULL); if (attrs[HWSIM_ATTR_ADDR_TRANSMITTER]) { - struct mac_address *src = (struct mac_address*) - nla_data(attrs[HWSIM_ATTR_ADDR_TRANSMITTER]); - - unsigned int data_len = - nla_len(attrs[HWSIM_ATTR_FRAME]); - char* data = (char*)nla_data(attrs[HWSIM_ATTR_FRAME]); - unsigned int flags = - nla_get_u32(attrs[HWSIM_ATTR_FLAGS]); - // printf("flags: %d\n", flags); - struct hwsim_tx_rate *tx_rates = - (struct hwsim_tx_rate*) - nla_data(attrs[HWSIM_ATTR_TX_INFO]); + struct mac_address *src = (struct mac_address*) nla_data( + attrs[HWSIM_ATTR_ADDR_TRANSMITTER]); + + unsigned int data_len = nla_len(attrs[HWSIM_ATTR_FRAME]); + char* data = (char*) nla_data(attrs[HWSIM_ATTR_FRAME]); + unsigned int flags = nla_get_u32(attrs[HWSIM_ATTR_FLAGS]); + // printf("flags: %d\n", flags); + struct hwsim_tx_rate *tx_rates = (struct hwsim_tx_rate*) nla_data( + attrs[HWSIM_ATTR_TX_INFO]); unsigned long cookie = nla_get_u64(attrs[HWSIM_ATTR_COOKIE]); received++; //printf("frame [%d] length:%d\n",received,data_len); - send_frames_to_radios_with_retries(src, data, - data_len, flags, tx_rates, cookie); + send_frames_to_radios_with_retries(src, data, data_len, flags, + tx_rates, cookie); //printf("\rreceived: %d tried: %d sent: %d acked: %d", // received, dropped+sent, sent, acked); } @@ -336,17 +349,16 @@ static int process_messages_cb(struct nl_msg *msg, void *arg) * Send a register message to kernel */ -int send_register_msg() -{ +int send_register_msg() { struct nl_msg *msg = nlmsg_alloc(); if (!msg) { printf("Error allocating new message MSG!\n"); return -1; } - genlmsg_put(msg, NL_AUTO_PID, NL_AUTO_SEQ, genl_family_get_id(family), - 0, NLM_F_REQUEST, HWSIM_CMD_REGISTER, VERSION_NR); - nl_send_auto_complete(sock,msg); + genlmsg_put(msg, NL_AUTO_PID, NL_AUTO_SEQ, genl_family_get_id(family), 0, + NLM_F_REQUEST, HWSIM_CMD_REGISTER, VERSION_NR); + nl_send_auto_complete(sock, msg); nlmsg_free(msg); return 0; @@ -360,14 +372,11 @@ void kill_handler() { running = 0; } - - /* * Init netlink */ -void init_netlink() -{ +void init_netlink() { cb = nl_cb_alloc(NL_CB_CUSTOM); if (!cb) { @@ -395,12 +404,23 @@ void init_netlink() } +/* + * Initialized the mobility and medium extension need variables + */ + +void init_mobility_medium_globals() { + struct timeval current_time; + gettimeofday(¤t_time, NULL ); + mob_med_cfg.start_execution_timestamp = current_time.tv_sec; + mob_med_cfg.last_def_position = 0; + mob_med_cfg.dcurrent = 0; +} + /* * Print the CLI help */ -void print_help(int exval) -{ +void print_help(int exval) { printf("wmediumd v%s - a wireless medium simulator\n", VERSION_STR); printf("wmediumd [-h] [-V] [-c FILE] [-o FILE]\n\n"); @@ -413,52 +433,61 @@ void print_help(int exval) exit(exval); } - int main(int argc, char* argv[]) { int opt, ifaces; /* Set stdout buffering to line mode */ - setvbuf (stdout, NULL, _IOLBF, BUFSIZ); + setvbuf(stdout, NULL, _IOLBF, BUFSIZ); /* no arguments given */ - if(argc == 1) { + if (argc == 1) { fprintf(stderr, "This program needs arguments....\n\n"); print_help(EXIT_FAILURE); } - while((opt = getopt(argc, argv, "hVc:o:")) != -1) { - switch(opt) { + while ((opt = getopt(argc, argv, "hVc:m:o:")) != -1) { + switch (opt) { case 'h': print_help(EXIT_SUCCESS); - break; + break; case 'V': printf("wmediumd v%s - a wireless medium simulator " - "for mac80211_hwsim\n", VERSION_STR); + "for mac80211_hwsim\n", VERSION_STR); exit(EXIT_SUCCESS); break; case 'c': + mob_med_cfg.mobility = 0; printf("Input configuration file: %s\n", optarg); load_config(optarg); + print_prob_matrix(prob_matrix); + break; + case 'm': + mob_med_cfg.mobility = 1; + printf("Input mobility and medium configuration file: %s\n", + optarg); + load_basic_config(optarg); + load_mobility_medium_config(optarg); + init_mobility_medium_globals(); break; case 'o': printf("Output configuration file: %s\n", optarg); printf("How many interfaces are active?\n"); - scanf("%d",&ifaces); + scanf("%d", &ifaces); if (ifaces < 2) { printf("active interfaces must be at least 2\n"); exit(EXIT_FAILURE); } - write_config(optarg, ifaces, 0.0); + write_config(optarg, ifaces, 0.0); break; case ':': printf("wmediumd: Error - Option `%c' " - "needs a value\n\n", optopt); + "needs a value\n\n", optopt); print_help(EXIT_FAILURE); break; case '?': printf("wmediumd: Error - No such option:" - " `%c'\n\n", optopt); + " `%c'\n\n", optopt); print_help(EXIT_FAILURE); break; } @@ -468,8 +497,6 @@ int main(int argc, char* argv[]) { if (optind < argc) print_help(EXIT_FAILURE); - print_prob_matrix(prob_matrix); - /*Handle kill signals*/ running = 1; signal(SIGUSR1, kill_handler); @@ -478,15 +505,16 @@ int main(int argc, char* argv[]) { init_netlink(); /*Send a register msg to the kernel*/ - if (send_register_msg()==0) + if (send_register_msg() == 0) printf("REGISTER SENT!\n"); /*We wait for incoming msg*/ - while(running) { + while (running) { nl_recvmsgs_default(sock); } /*Free all memory*/ + free(mob_med_cfg.radios); free(sock); free(cb); free(cache); diff --git a/wmediumd/wmediumd.h b/wmediumd/wmediumd.h index 1e080d6..2cfdd1d 100644 --- a/wmediumd/wmediumd.h +++ b/wmediumd/wmediumd.h @@ -43,6 +43,8 @@ #define HWSIM_ATTR_MAX 8 #define VERSION_NR 1 +#include "mac_address.h" + struct hwsim_tx_rate { signed char idx; unsigned char count; @@ -53,4 +55,31 @@ struct jammer_cfg { struct mac_address *macs; int nmacs; }; + +struct position_time { + float time; + int x; + int y; +}; + +struct radio_mobility { + struct mac_address mac; + int count_positions; + struct position_time *positions; +}; + +struct mobility_medium_cfg { + int debug; + int mobility; + unsigned long int start_execution_timestamp; + int last_def_position; + int dcurrent; + double dmax; + int interference_tunner; + int fading_probability; + int fading_intensity; + int count_ids; + struct radio_mobility *radios; +}; + #endif /* WMEDIUMD_H_ */