470 lines
14 KiB
C
470 lines
14 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"
|
|
#include "driver-ops.h"
|
|
|
|
/* sta attributtes */
|
|
|
|
#define STA_READ(name, field, format_string) \
|
|
static ssize_t sta_ ##name## _read(struct file *file, \
|
|
char __user *userbuf, \
|
|
size_t count, loff_t *ppos) \
|
|
{ \
|
|
struct sta_info *sta = file->private_data; \
|
|
return mac80211_format_buffer(userbuf, count, ppos, \
|
|
format_string, sta->field); \
|
|
}
|
|
#define STA_READ_D(name, field) STA_READ(name, field, "%d\n")
|
|
#define STA_READ_U(name, field) STA_READ(name, field, "%u\n")
|
|
#define STA_READ_S(name, field) STA_READ(name, field, "%s\n")
|
|
|
|
#define STA_OPS(name) \
|
|
static const struct file_operations sta_ ##name## _ops = { \
|
|
.read = sta_##name##_read, \
|
|
.open = simple_open, \
|
|
.llseek = generic_file_llseek, \
|
|
}
|
|
|
|
#define STA_OPS_RW(name) \
|
|
static const struct file_operations sta_ ##name## _ops = { \
|
|
.read = sta_##name##_read, \
|
|
.write = sta_##name##_write, \
|
|
.open = simple_open, \
|
|
.llseek = generic_file_llseek, \
|
|
}
|
|
|
|
#define STA_FILE(name, field, format) \
|
|
STA_READ_##format(name, field) \
|
|
STA_OPS(name)
|
|
|
|
STA_FILE(aid, sta.aid, D);
|
|
STA_FILE(dev, sdata->name, S);
|
|
STA_FILE(last_signal, last_signal, D);
|
|
STA_FILE(last_ack_signal, last_ack_signal, D);
|
|
STA_FILE(beacon_loss_count, beacon_loss_count, D);
|
|
|
|
static ssize_t sta_flags_read(struct file *file, char __user *userbuf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
char buf[121];
|
|
struct sta_info *sta = file->private_data;
|
|
|
|
#define TEST(flg) \
|
|
test_sta_flag(sta, WLAN_STA_##flg) ? #flg "\n" : ""
|
|
|
|
int res = scnprintf(buf, sizeof(buf),
|
|
"%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
|
|
TEST(AUTH), TEST(ASSOC), TEST(PS_STA),
|
|
TEST(PS_DRIVER), TEST(AUTHORIZED),
|
|
TEST(SHORT_PREAMBLE),
|
|
TEST(WME), TEST(WDS), TEST(CLEAR_PS_FILT),
|
|
TEST(MFP), TEST(BLOCK_BA), TEST(PSPOLL),
|
|
TEST(UAPSD), TEST(SP), TEST(TDLS_PEER),
|
|
TEST(TDLS_PEER_AUTH), TEST(4ADDR_EVENT),
|
|
TEST(INSERTED), TEST(RATE_CONTROL),
|
|
TEST(TOFFSET_KNOWN), TEST(MPSP_OWNER),
|
|
TEST(MPSP_RECIPIENT));
|
|
#undef TEST
|
|
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)
|
|
{
|
|
struct sta_info *sta = file->private_data;
|
|
char buf[17*IEEE80211_NUM_ACS], *p = buf;
|
|
int ac;
|
|
|
|
for (ac = 0; ac < IEEE80211_NUM_ACS; ac++)
|
|
p += scnprintf(p, sizeof(buf)+buf-p, "AC%d: %d\n", ac,
|
|
skb_queue_len(&sta->ps_tx_buf[ac]) +
|
|
skb_queue_len(&sta->tx_filtered[ac]));
|
|
return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
|
|
}
|
|
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)
|
|
{
|
|
struct sta_info *sta = file->private_data;
|
|
return mac80211_format_buffer(userbuf, count, ppos, "%d\n",
|
|
jiffies_to_msecs(jiffies - sta->last_rx));
|
|
}
|
|
STA_OPS(inactive_ms);
|
|
|
|
|
|
static ssize_t sta_connected_time_read(struct file *file, char __user *userbuf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct sta_info *sta = file->private_data;
|
|
struct timespec uptime;
|
|
struct tm result;
|
|
long connected_time_secs;
|
|
char buf[100];
|
|
int res;
|
|
do_posix_clock_monotonic_gettime(&uptime);
|
|
connected_time_secs = uptime.tv_sec - sta->last_connected;
|
|
time_to_tm(connected_time_secs, 0, &result);
|
|
result.tm_year -= 70;
|
|
result.tm_mday -= 1;
|
|
res = scnprintf(buf, sizeof(buf),
|
|
"years - %ld\nmonths - %d\ndays - %d\nclock - %d:%d:%d\n\n",
|
|
result.tm_year, result.tm_mon, result.tm_mday,
|
|
result.tm_hour, result.tm_min, result.tm_sec);
|
|
return simple_read_from_buffer(userbuf, count, ppos, buf, res);
|
|
}
|
|
STA_OPS(connected_time);
|
|
|
|
|
|
|
|
static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
char buf[15*IEEE80211_NUM_TIDS], *p = buf;
|
|
int i;
|
|
struct sta_info *sta = file->private_data;
|
|
for (i = 0; i < IEEE80211_NUM_TIDS; 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[71 + IEEE80211_NUM_TIDS * 40], *p = buf;
|
|
int i;
|
|
struct sta_info *sta = file->private_data;
|
|
struct tid_ampdu_rx *tid_rx;
|
|
struct tid_ampdu_tx *tid_tx;
|
|
|
|
rcu_read_lock();
|
|
|
|
p += scnprintf(p, sizeof(buf) + buf - p, "next dialog_token: %#02x\n",
|
|
sta->ampdu_mlme.dialog_token_allocator + 1);
|
|
p += scnprintf(p, sizeof(buf) + buf - p,
|
|
"TID\t\tRX active\tDTKN\tSSN\t\tTX\tDTKN\tpending\n");
|
|
|
|
for (i = 0; i < IEEE80211_NUM_TIDS; i++) {
|
|
tid_rx = rcu_dereference(sta->ampdu_mlme.tid_rx[i]);
|
|
tid_tx = rcu_dereference(sta->ampdu_mlme.tid_tx[i]);
|
|
|
|
p += scnprintf(p, sizeof(buf) + buf - p, "%02d", i);
|
|
p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x", !!tid_rx);
|
|
p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x",
|
|
tid_rx ? tid_rx->dialog_token : 0);
|
|
p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.3x",
|
|
tid_rx ? tid_rx->ssn : 0);
|
|
|
|
p += scnprintf(p, sizeof(buf) + buf - p, "\t\t%x", !!tid_tx);
|
|
p += scnprintf(p, sizeof(buf) + buf - p, "\t%#.2x",
|
|
tid_tx ? tid_tx->dialog_token : 0);
|
|
p += scnprintf(p, sizeof(buf) + buf - p, "\t%03d",
|
|
tid_tx ? skb_queue_len(&tid_tx->pending) : 0);
|
|
p += scnprintf(p, sizeof(buf) + buf - p, "\n");
|
|
}
|
|
rcu_read_unlock();
|
|
|
|
return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
|
|
}
|
|
|
|
static ssize_t sta_agg_status_write(struct file *file, const char __user *userbuf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
char _buf[12], *buf = _buf;
|
|
struct sta_info *sta = file->private_data;
|
|
bool start, tx;
|
|
unsigned long tid;
|
|
int ret;
|
|
|
|
if (count > sizeof(_buf))
|
|
return -EINVAL;
|
|
|
|
if (copy_from_user(buf, userbuf, count))
|
|
return -EFAULT;
|
|
|
|
buf[sizeof(_buf) - 1] = '\0';
|
|
|
|
if (strncmp(buf, "tx ", 3) == 0) {
|
|
buf += 3;
|
|
tx = true;
|
|
} else if (strncmp(buf, "rx ", 3) == 0) {
|
|
buf += 3;
|
|
tx = false;
|
|
} else
|
|
return -EINVAL;
|
|
|
|
if (strncmp(buf, "start ", 6) == 0) {
|
|
buf += 6;
|
|
start = true;
|
|
if (!tx)
|
|
return -EINVAL;
|
|
} else if (strncmp(buf, "stop ", 5) == 0) {
|
|
buf += 5;
|
|
start = false;
|
|
} else
|
|
return -EINVAL;
|
|
|
|
ret = kstrtoul(buf, 0, &tid);
|
|
if (ret)
|
|
return ret;
|
|
|
|
if (tid >= IEEE80211_NUM_TIDS)
|
|
return -EINVAL;
|
|
|
|
if (tx) {
|
|
if (start)
|
|
ret = ieee80211_start_tx_ba_session(&sta->sta, tid, 5000);
|
|
else
|
|
ret = ieee80211_stop_tx_ba_session(&sta->sta, tid);
|
|
} else {
|
|
__ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT,
|
|
3, true);
|
|
ret = 0;
|
|
}
|
|
|
|
return ret ?: count;
|
|
}
|
|
STA_OPS_RW(agg_status);
|
|
|
|
static ssize_t sta_ht_capa_read(struct file *file, char __user *userbuf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
#define PRINT_HT_CAP(_cond, _str) \
|
|
do { \
|
|
if (_cond) \
|
|
p += scnprintf(p, sizeof(buf)+buf-p, "\t" _str "\n"); \
|
|
} while (0)
|
|
char buf[512], *p = buf;
|
|
int i;
|
|
struct sta_info *sta = file->private_data;
|
|
struct ieee80211_sta_ht_cap *htc = &sta->sta.ht_cap;
|
|
|
|
p += scnprintf(p, sizeof(buf) + buf - p, "ht %ssupported\n",
|
|
htc->ht_supported ? "" : "not ");
|
|
if (htc->ht_supported) {
|
|
p += scnprintf(p, sizeof(buf)+buf-p, "cap: %#.4x\n", htc->cap);
|
|
|
|
PRINT_HT_CAP((htc->cap & BIT(0)), "RX LDPC");
|
|
PRINT_HT_CAP((htc->cap & BIT(1)), "HT20/HT40");
|
|
PRINT_HT_CAP(!(htc->cap & BIT(1)), "HT20");
|
|
|
|
PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 0, "Static SM Power Save");
|
|
PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 1, "Dynamic SM Power Save");
|
|
PRINT_HT_CAP(((htc->cap >> 2) & 0x3) == 3, "SM Power Save disabled");
|
|
|
|
PRINT_HT_CAP((htc->cap & BIT(4)), "RX Greenfield");
|
|
PRINT_HT_CAP((htc->cap & BIT(5)), "RX HT20 SGI");
|
|
PRINT_HT_CAP((htc->cap & BIT(6)), "RX HT40 SGI");
|
|
PRINT_HT_CAP((htc->cap & BIT(7)), "TX STBC");
|
|
|
|
PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 0, "No RX STBC");
|
|
PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 1, "RX STBC 1-stream");
|
|
PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 2, "RX STBC 2-streams");
|
|
PRINT_HT_CAP(((htc->cap >> 8) & 0x3) == 3, "RX STBC 3-streams");
|
|
|
|
PRINT_HT_CAP((htc->cap & BIT(10)), "HT Delayed Block Ack");
|
|
|
|
PRINT_HT_CAP(!(htc->cap & BIT(11)), "Max AMSDU length: "
|
|
"3839 bytes");
|
|
PRINT_HT_CAP((htc->cap & BIT(11)), "Max AMSDU length: "
|
|
"7935 bytes");
|
|
|
|
/*
|
|
* For beacons and probe response this would mean the BSS
|
|
* does or does not allow the usage of DSSS/CCK HT40.
|
|
* Otherwise it means the STA does or does not use
|
|
* DSSS/CCK HT40.
|
|
*/
|
|
PRINT_HT_CAP((htc->cap & BIT(12)), "DSSS/CCK HT40");
|
|
PRINT_HT_CAP(!(htc->cap & BIT(12)), "No DSSS/CCK HT40");
|
|
|
|
/* BIT(13) is reserved */
|
|
|
|
PRINT_HT_CAP((htc->cap & BIT(14)), "40 MHz Intolerant");
|
|
|
|
PRINT_HT_CAP((htc->cap & BIT(15)), "L-SIG TXOP protection");
|
|
|
|
p += scnprintf(p, sizeof(buf)+buf-p, "ampdu factor/density: %d/%d\n",
|
|
htc->ampdu_factor, htc->ampdu_density);
|
|
p += scnprintf(p, sizeof(buf)+buf-p, "MCS mask:");
|
|
|
|
for (i = 0; i < IEEE80211_HT_MCS_MASK_LEN; i++)
|
|
p += scnprintf(p, sizeof(buf)+buf-p, " %.2x",
|
|
htc->mcs.rx_mask[i]);
|
|
p += scnprintf(p, sizeof(buf)+buf-p, "\n");
|
|
|
|
/* If not set this is meaningless */
|
|
if (le16_to_cpu(htc->mcs.rx_highest)) {
|
|
p += scnprintf(p, sizeof(buf)+buf-p,
|
|
"MCS rx highest: %d Mbps\n",
|
|
le16_to_cpu(htc->mcs.rx_highest));
|
|
}
|
|
|
|
p += scnprintf(p, sizeof(buf)+buf-p, "MCS tx params: %x\n",
|
|
htc->mcs.tx_params);
|
|
}
|
|
|
|
return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
|
|
}
|
|
STA_OPS(ht_capa);
|
|
|
|
static ssize_t sta_vht_capa_read(struct file *file, char __user *userbuf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
char buf[128], *p = buf;
|
|
struct sta_info *sta = file->private_data;
|
|
struct ieee80211_sta_vht_cap *vhtc = &sta->sta.vht_cap;
|
|
|
|
p += scnprintf(p, sizeof(buf) + buf - p, "VHT %ssupported\n",
|
|
vhtc->vht_supported ? "" : "not ");
|
|
if (vhtc->vht_supported) {
|
|
p += scnprintf(p, sizeof(buf)+buf-p, "cap: %#.8x\n", vhtc->cap);
|
|
|
|
p += scnprintf(p, sizeof(buf)+buf-p, "RX MCS: %.4x\n",
|
|
le16_to_cpu(vhtc->vht_mcs.rx_mcs_map));
|
|
if (vhtc->vht_mcs.rx_highest)
|
|
p += scnprintf(p, sizeof(buf)+buf-p,
|
|
"MCS RX highest: %d Mbps\n",
|
|
le16_to_cpu(vhtc->vht_mcs.rx_highest));
|
|
p += scnprintf(p, sizeof(buf)+buf-p, "TX MCS: %.4x\n",
|
|
le16_to_cpu(vhtc->vht_mcs.tx_mcs_map));
|
|
if (vhtc->vht_mcs.tx_highest)
|
|
p += scnprintf(p, sizeof(buf)+buf-p,
|
|
"MCS TX highest: %d Mbps\n",
|
|
le16_to_cpu(vhtc->vht_mcs.tx_highest));
|
|
}
|
|
|
|
return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
|
|
}
|
|
STA_OPS(vht_capa);
|
|
|
|
static ssize_t sta_current_tx_rate_read(struct file *file, char __user *userbuf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct sta_info *sta = file->private_data;
|
|
struct rate_info rinfo;
|
|
u16 rate;
|
|
sta_set_rate_info_tx(sta, &sta->last_tx_rate, &rinfo);
|
|
rate = cfg80211_calculate_bitrate(&rinfo);
|
|
|
|
return mac80211_format_buffer(userbuf, count, ppos,
|
|
"%d.%d MBit/s\n",
|
|
rate/10, rate%10);
|
|
}
|
|
STA_OPS(current_tx_rate);
|
|
|
|
static ssize_t sta_last_rx_rate_read(struct file *file, char __user *userbuf,
|
|
size_t count, loff_t *ppos)
|
|
{
|
|
struct sta_info *sta = file->private_data;
|
|
struct rate_info rinfo;
|
|
u16 rate;
|
|
|
|
sta_set_rate_info_rx(sta, &rinfo);
|
|
|
|
rate = cfg80211_calculate_bitrate(&rinfo);
|
|
|
|
return mac80211_format_buffer(userbuf, count, ppos,
|
|
"%d.%d MBit/s\n",
|
|
rate/10, rate%10);
|
|
}
|
|
STA_OPS(last_rx_rate);
|
|
|
|
#define DEBUGFS_ADD(name) \
|
|
debugfs_create_file(#name, 0400, \
|
|
sta->debugfs.dir, sta, &sta_ ##name## _ops);
|
|
|
|
#define DEBUGFS_ADD_COUNTER(name, field) \
|
|
if (sizeof(sta->field) == sizeof(u32)) \
|
|
debugfs_create_u32(#name, 0400, sta->debugfs.dir, \
|
|
(u32 *) &sta->field); \
|
|
else \
|
|
debugfs_create_u64(#name, 0400, sta->debugfs.dir, \
|
|
(u64 *) &sta->field);
|
|
|
|
void ieee80211_sta_debugfs_add(struct sta_info *sta)
|
|
{
|
|
struct ieee80211_local *local = sta->local;
|
|
struct ieee80211_sub_if_data *sdata = sta->sdata;
|
|
struct dentry *stations_dir = sta->sdata->debugfs.subdir_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(connected_time);
|
|
DEBUGFS_ADD(last_seq_ctrl);
|
|
DEBUGFS_ADD(agg_status);
|
|
DEBUGFS_ADD(dev);
|
|
DEBUGFS_ADD(last_signal);
|
|
DEBUGFS_ADD(beacon_loss_count);
|
|
DEBUGFS_ADD(ht_capa);
|
|
DEBUGFS_ADD(vht_capa);
|
|
DEBUGFS_ADD(last_ack_signal);
|
|
DEBUGFS_ADD(current_tx_rate);
|
|
DEBUGFS_ADD(last_rx_rate);
|
|
|
|
DEBUGFS_ADD_COUNTER(rx_packets, rx_packets);
|
|
DEBUGFS_ADD_COUNTER(tx_packets, tx_packets);
|
|
DEBUGFS_ADD_COUNTER(rx_bytes, rx_bytes);
|
|
DEBUGFS_ADD_COUNTER(tx_bytes, tx_bytes);
|
|
DEBUGFS_ADD_COUNTER(rx_duplicates, num_duplicates);
|
|
DEBUGFS_ADD_COUNTER(rx_fragments, rx_fragments);
|
|
DEBUGFS_ADD_COUNTER(rx_dropped, rx_dropped);
|
|
DEBUGFS_ADD_COUNTER(tx_fragments, tx_fragments);
|
|
DEBUGFS_ADD_COUNTER(tx_filtered, tx_filtered_count);
|
|
DEBUGFS_ADD_COUNTER(tx_retry_failed, tx_retry_failed);
|
|
DEBUGFS_ADD_COUNTER(tx_retry_count, tx_retry_count);
|
|
DEBUGFS_ADD_COUNTER(wep_weak_iv_count, wep_weak_iv_count);
|
|
|
|
drv_sta_add_debugfs(local, sdata, &sta->sta, sta->debugfs.dir);
|
|
}
|
|
|
|
void ieee80211_sta_debugfs_remove(struct sta_info *sta)
|
|
{
|
|
struct ieee80211_local *local = sta->local;
|
|
struct ieee80211_sub_if_data *sdata = sta->sdata;
|
|
|
|
drv_sta_remove_debugfs(local, sdata, &sta->sta, sta->debugfs.dir);
|
|
debugfs_remove_recursive(sta->debugfs.dir);
|
|
sta->debugfs.dir = NULL;
|
|
}
|