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authorDaniel Wagner <wagi@monom.org>2009-05-18 19:49:25 +0200
committerJohn W. Linville <linville@tuxdriver.com>2009-05-20 14:46:29 -0400
commit73606d00360cb93963aeb7bfbf8bfdbc51cfab9f (patch)
treef64c63650fa78641c9438e859778c45d915cc8d8
parent1071db863b129847cedb65339d1e87ecf5952a8b (diff)
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mac80211_hwsim: Group radios
Currently all radios receive all traffic on the simulated air if they are tuned to the same channel. This patch introduces the concept of grouping, which allows to assign a radio to certain group. Only radios in the same group can 'see' each other. Each bit in /debug/ieee80211/phy*/hwsim/group represents one group. By default all radios belong to the same group "1", e.g. bit 1 is set. Additionally a radio can belong to several groups. Signed-off-by: Daniel Wagner <wagi@monom.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r--drivers/net/wireless/mac80211_hwsim.c35
1 files changed, 34 insertions, 1 deletions
diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c
index 61a4ad7cc1c..574b8bb121e 100644
--- a/drivers/net/wireless/mac80211_hwsim.c
+++ b/drivers/net/wireless/mac80211_hwsim.c
@@ -291,6 +291,14 @@ struct mac80211_hwsim_data {
bool ps_poll_pending;
struct dentry *debugfs;
struct dentry *debugfs_ps;
+
+ /*
+ * 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;
};
@@ -412,7 +420,8 @@ static bool mac80211_hwsim_tx_frame(struct ieee80211_hw *hw,
if (!data2->started || !data2->radio_enabled ||
!hwsim_ps_rx_ok(data2, skb) ||
- data->channel->center_freq != data2->channel->center_freq)
+ data->channel->center_freq != data2->channel->center_freq ||
+ !(data->group & data2->group))
continue;
nskb = skb_copy(skb, GFP_ATOMIC);
@@ -720,6 +729,7 @@ static void mac80211_hwsim_free(void)
spin_unlock_bh(&hwsim_radio_lock);
list_for_each_entry(data, &tmplist, list) {
+ debugfs_remove(data->debugfs_group);
debugfs_remove(data->debugfs_ps);
debugfs_remove(data->debugfs);
ieee80211_unregister_hw(data->hw);
@@ -872,6 +882,24 @@ DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_ps, hwsim_fops_ps_read, hwsim_fops_ps_write,
"%llu\n");
+static int hwsim_fops_group_read(void *dat, u64 *val)
+{
+ struct mac80211_hwsim_data *data = dat;
+ *val = data->group;
+ return 0;
+}
+
+static int hwsim_fops_group_write(void *dat, u64 val)
+{
+ struct mac80211_hwsim_data *data = dat;
+ data->group = val;
+ return 0;
+}
+
+DEFINE_SIMPLE_ATTRIBUTE(hwsim_fops_group,
+ hwsim_fops_group_read, hwsim_fops_group_write,
+ "%llx\n");
+
static int __init init_mac80211_hwsim(void)
{
int i, err = 0;
@@ -976,6 +1004,8 @@ static int __init init_mac80211_hwsim(void)
hw->wiphy->bands[band] = sband;
}
+ /* By default all radios are belonging to the first group */
+ data->group = 1;
/* Work to be done prior to ieee80211_register_hw() */
switch (regtest) {
@@ -1100,6 +1130,9 @@ static int __init init_mac80211_hwsim(void)
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);