216 lines
6.9 KiB
C
216 lines
6.9 KiB
C
/*
|
|
* Copyright 2003-2005 Devicescape Software, Inc.
|
|
* Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
|
|
* Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
#include <linux/debugfs.h>
|
|
#include <linux/ieee80211.h>
|
|
#include "ieee80211_i.h"
|
|
#include "debugfs.h"
|
|
#include "debugfs_sta.h"
|
|
#include "sta_info.h"
|
|
|
|
/* sta attributtes */
|
|
|
|
#define STA_READ(name, buflen, field, format_string) \
|
|
static ssize_t sta_ ##name## _read(struct file *file, \
|
|
char __user *userbuf, \
|
|
size_t count, loff_t *ppos) \
|
|
{ \
|
|
int res; \
|
|
struct sta_info *sta = file->private_data; \
|
|
char buf[buflen]; \
|
|
res = scnprintf(buf, buflen, format_string, sta->field); \
|
|
return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
|
|
}
|
|
#define STA_READ_D(name, field) STA_READ(name, 20, field, "%d\n")
|
|
#define STA_READ_U(name, field) STA_READ(name, 20, field, "%u\n")
|
|
#define STA_READ_LU(name, field) STA_READ(name, 20, field, "%lu\n")
|
|
#define STA_READ_S(name, field) STA_READ(name, 20, field, "%s\n")
|
|
|
|
#define STA_OPS(name) \
|
|
static const struct file_operations sta_ ##name## _ops = { \
|
|
.read = sta_##name##_read, \
|
|
.open = mac80211_open_file_generic, \
|
|
}
|
|
|
|
#define STA_FILE(name, field, format) \
|
|
STA_READ_##format(name, field) \
|
|
STA_OPS(name)
|
|
|
|
STA_FILE(aid, sta.aid, D);
|
|
STA_FILE(dev, sdata->dev->name, S);
|
|
STA_FILE(rx_packets, rx_packets, LU);
|
|
STA_FILE(tx_packets, tx_packets, LU);
|
|
STA_FILE(rx_bytes, rx_bytes, LU);
|
|
STA_FILE(tx_bytes, tx_bytes, LU);
|
|
STA_FILE(rx_duplicates, num_duplicates, LU);
|
|
STA_FILE(rx_fragments, rx_fragments, LU);
|
|
STA_FILE(rx_dropped, rx_dropped, LU);
|
|
STA_FILE(tx_fragments, tx_fragments, LU);
|
|
STA_FILE(tx_filtered, tx_filtered_count, LU);
|
|
STA_FILE(tx_retry_failed, tx_retry_failed, LU);
|
|
STA_FILE(tx_retry_count, tx_retry_count, LU);
|
|
STA_FILE(last_signal, last_signal, D);
|
|
STA_FILE(last_noise, last_noise, D);
|
|
STA_FILE(wep_weak_iv_count, wep_weak_iv_count, LU);
|
|
|
|
static ssize_t sta_flags_read(struct file *file, char __user *userbuf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
char buf[100];
|
|
struct sta_info *sta = file->private_data;
|
|
u32 staflags = get_sta_flags(sta);
|
|
int res = scnprintf(buf, sizeof(buf), "%s%s%s%s%s%s%s%s",
|
|
staflags & WLAN_STA_AUTH ? "AUTH\n" : "",
|
|
staflags & WLAN_STA_ASSOC ? "ASSOC\n" : "",
|
|
staflags & WLAN_STA_PS ? "PS\n" : "",
|
|
staflags & WLAN_STA_AUTHORIZED ? "AUTHORIZED\n" : "",
|
|
staflags & WLAN_STA_SHORT_PREAMBLE ? "SHORT PREAMBLE\n" : "",
|
|
staflags & WLAN_STA_WME ? "WME\n" : "",
|
|
staflags & WLAN_STA_WDS ? "WDS\n" : "",
|
|
staflags & WLAN_STA_MFP ? "MFP\n" : "");
|
|
return simple_read_from_buffer(userbuf, count, ppos, buf, res);
|
|
}
|
|
STA_OPS(flags);
|
|
|
|
static ssize_t sta_num_ps_buf_frames_read(struct file *file,
|
|
char __user *userbuf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
char buf[20];
|
|
struct sta_info *sta = file->private_data;
|
|
int res = scnprintf(buf, sizeof(buf), "%u\n",
|
|
skb_queue_len(&sta->ps_tx_buf));
|
|
return simple_read_from_buffer(userbuf, count, ppos, buf, res);
|
|
}
|
|
STA_OPS(num_ps_buf_frames);
|
|
|
|
static ssize_t sta_inactive_ms_read(struct file *file, char __user *userbuf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
char buf[20];
|
|
struct sta_info *sta = file->private_data;
|
|
int res = scnprintf(buf, sizeof(buf), "%d\n",
|
|
jiffies_to_msecs(jiffies - sta->last_rx));
|
|
return simple_read_from_buffer(userbuf, count, ppos, buf, res);
|
|
}
|
|
STA_OPS(inactive_ms);
|
|
|
|
static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
char buf[15*NUM_RX_DATA_QUEUES], *p = buf;
|
|
int i;
|
|
struct sta_info *sta = file->private_data;
|
|
for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
|
|
p += scnprintf(p, sizeof(buf)+buf-p, "%x ",
|
|
le16_to_cpu(sta->last_seq_ctrl[i]));
|
|
p += scnprintf(p, sizeof(buf)+buf-p, "\n");
|
|
return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
|
|
}
|
|
STA_OPS(last_seq_ctrl);
|
|
|
|
static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
char buf[30 + STA_TID_NUM * 70], *p = buf;
|
|
int i;
|
|
struct sta_info *sta = file->private_data;
|
|
|
|
spin_lock_bh(&sta->lock);
|
|
p += scnprintf(p, sizeof(buf)+buf-p, "next dialog_token is %#02x\n",
|
|
sta->ampdu_mlme.dialog_token_allocator + 1);
|
|
for (i = 0; i < STA_TID_NUM; i++) {
|
|
p += scnprintf(p, sizeof(buf)+buf-p, "TID %02d:", i);
|
|
p += scnprintf(p, sizeof(buf)+buf-p, " RX=%x",
|
|
sta->ampdu_mlme.tid_state_rx[i]);
|
|
p += scnprintf(p, sizeof(buf)+buf-p, "/DTKN=%#.2x",
|
|
sta->ampdu_mlme.tid_state_rx[i] ?
|
|
sta->ampdu_mlme.tid_rx[i]->dialog_token : 0);
|
|
p += scnprintf(p, sizeof(buf)+buf-p, "/SSN=%#.3x",
|
|
sta->ampdu_mlme.tid_state_rx[i] ?
|
|
sta->ampdu_mlme.tid_rx[i]->ssn : 0);
|
|
|
|
p += scnprintf(p, sizeof(buf)+buf-p, " TX=%x",
|
|
sta->ampdu_mlme.tid_state_tx[i]);
|
|
p += scnprintf(p, sizeof(buf)+buf-p, "/DTKN=%#.2x",
|
|
sta->ampdu_mlme.tid_state_tx[i] ?
|
|
sta->ampdu_mlme.tid_tx[i]->dialog_token : 0);
|
|
p += scnprintf(p, sizeof(buf)+buf-p, "/SSN=%#.3x",
|
|
sta->ampdu_mlme.tid_state_tx[i] ?
|
|
sta->ampdu_mlme.tid_tx[i]->ssn : 0);
|
|
p += scnprintf(p, sizeof(buf)+buf-p, "/pending=%03d",
|
|
sta->ampdu_mlme.tid_state_tx[i] ?
|
|
skb_queue_len(&sta->ampdu_mlme.tid_tx[i]->pending) : 0);
|
|
p += scnprintf(p, sizeof(buf)+buf-p, "\n");
|
|
}
|
|
spin_unlock_bh(&sta->lock);
|
|
|
|
return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
|
|
}
|
|
STA_OPS(agg_status);
|
|
|
|
#define DEBUGFS_ADD(name) \
|
|
debugfs_create_file(#name, 0400, \
|
|
sta->debugfs.dir, sta, &sta_ ##name## _ops);
|
|
|
|
|
|
void ieee80211_sta_debugfs_add(struct sta_info *sta)
|
|
{
|
|
struct dentry *stations_dir = sta->local->debugfs.stations;
|
|
u8 mac[3*ETH_ALEN];
|
|
|
|
sta->debugfs.add_has_run = true;
|
|
|
|
if (!stations_dir)
|
|
return;
|
|
|
|
snprintf(mac, sizeof(mac), "%pM", sta->sta.addr);
|
|
|
|
/*
|
|
* This might fail due to a race condition:
|
|
* When mac80211 unlinks a station, the debugfs entries
|
|
* remain, but it is already possible to link a new
|
|
* station with the same address which triggers adding
|
|
* it to debugfs; therefore, if the old station isn't
|
|
* destroyed quickly enough the old station's debugfs
|
|
* dir might still be around.
|
|
*/
|
|
sta->debugfs.dir = debugfs_create_dir(mac, stations_dir);
|
|
if (!sta->debugfs.dir)
|
|
return;
|
|
|
|
DEBUGFS_ADD(flags);
|
|
DEBUGFS_ADD(num_ps_buf_frames);
|
|
DEBUGFS_ADD(inactive_ms);
|
|
DEBUGFS_ADD(last_seq_ctrl);
|
|
DEBUGFS_ADD(agg_status);
|
|
DEBUGFS_ADD(dev);
|
|
DEBUGFS_ADD(rx_packets);
|
|
DEBUGFS_ADD(tx_packets);
|
|
DEBUGFS_ADD(rx_bytes);
|
|
DEBUGFS_ADD(tx_bytes);
|
|
DEBUGFS_ADD(rx_duplicates);
|
|
DEBUGFS_ADD(rx_fragments);
|
|
DEBUGFS_ADD(rx_dropped);
|
|
DEBUGFS_ADD(tx_fragments);
|
|
DEBUGFS_ADD(tx_filtered);
|
|
DEBUGFS_ADD(tx_retry_failed);
|
|
DEBUGFS_ADD(tx_retry_count);
|
|
DEBUGFS_ADD(last_signal);
|
|
DEBUGFS_ADD(last_noise);
|
|
DEBUGFS_ADD(wep_weak_iv_count);
|
|
}
|
|
|
|
void ieee80211_sta_debugfs_remove(struct sta_info *sta)
|
|
{
|
|
debugfs_remove_recursive(sta->debugfs.dir);
|
|
sta->debugfs.dir = NULL;
|
|
}
|