/* * mac80211 debugfs for wireless PHYs * * Copyright 2007 Johannes Berg <johannes@sipsolutions.net> * * GPLv2 * */ #include <linux/debugfs.h>#include <linux/rtnetlink.h>#include "ieee80211_i.h"#include "driver-ops.h"#include "rate.h"#include "debugfs.h" int mac80211_open_file_generic(struct inode *inode, struct file *file){ file->private_data = inode->i_private; return 0;} #define DEBUGFS_FORMAT_BUFFER_SIZE 100 int mac80211_format_buffer(char __user *userbuf, size_t count, loff_t *ppos, char *fmt, ...){ va_list args; char buf[DEBUGFS_FORMAT_BUFFER_SIZE]; int res; va_start(args, fmt); res = vscnprintf(buf, sizeof(buf), fmt, args); va_end(args); return simple_read_from_buffer(userbuf, count, ppos, buf, res);} #define DEBUGFS_READONLY_FILE_FN(name, fmt, value...) \static ssize_t name## _read(struct file *file, char __user *userbuf, \ size_t count, loff_t *ppos) \{ \ struct ieee80211_local *local = file->private_data; \ \ return mac80211_format_buffer(userbuf, count, ppos, \ fmt "\n", ##value); \} #define DEBUGFS_READONLY_FILE_OPS(name) \static const struct file_operations name## _ops = { \ .read = name## _read, \ .open = mac80211_open_file_generic, \ .llseek = generic_file_llseek, \}; #define DEBUGFS_READONLY_FILE(name, fmt, value...) \ DEBUGFS_READONLY_FILE_FN(name, fmt, value) \ DEBUGFS_READONLY_FILE_OPS(name) #define DEBUGFS_ADD(name) \ debugfs_create_file(#name, 0400, phyd, local, &name## _ops); #define DEBUGFS_ADD_MODE(name, mode) \ debugfs_create_file(#name, mode, phyd, local, &name## _ops); DEBUGFS_READONLY_FILE(user_power, "%d", local->user_power_level);DEBUGFS_READONLY_FILE(power, "%d", local->hw.conf.power_level);DEBUGFS_READONLY_FILE(frequency, "%d", local->hw.conf.channel->center_freq);DEBUGFS_READONLY_FILE(total_ps_buffered, "%d", local->total_ps_buffered);DEBUGFS_READONLY_FILE(wep_iv, "%#08x", local->wep_iv & 0xffffff);DEBUGFS_READONLY_FILE(rate_ctrl_alg, "%s", local->rate_ctrl ? local->rate_ctrl->ops->name : "hw/driver"); static ssize_t reset_write(struct file *file, const char __user *user_buf, size_t count, loff_t *ppos){ struct ieee80211_local *local = file->private_data; rtnl_lock(); __ieee80211_suspend(&local->hw, NULL); __ieee80211_resume(&local->hw); rtnl_unlock(); return count;} static const struct file_operations reset_ops = { .write = reset_write, .open = mac80211_open_file_generic, .llseek = noop_llseek,}; static ssize_t noack_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos){ struct ieee80211_local *local = file->private_data; return mac80211_format_buffer(user_buf, count, ppos, "%d\n", local->wifi_wme_noack_test);} static ssize_t noack_write(struct file *file, const char __user *user_buf, size_t count, loff_t *ppos){ struct ieee80211_local *local = file->private_data; char buf[10]; size_t len; len = min(count, sizeof(buf) - 1); if (copy_from_user(buf, user_buf, len)) return -EFAULT; buf[len] = '\0'; local->wifi_wme_noack_test = !!simple_strtoul(buf, NULL, 0); return count;} static const struct file_operations noack_ops = { .read = noack_read, .write = noack_write, .open = mac80211_open_file_generic, .llseek = default_llseek,}; static ssize_t uapsd_queues_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos){ struct ieee80211_local *local = file->private_data; return mac80211_format_buffer(user_buf, count, ppos, "0x%x\n", local->uapsd_queues);} static ssize_t uapsd_queues_write(struct file *file, const char __user *user_buf, size_t count, loff_t *ppos){ struct ieee80211_local *local = file->private_data; u8 val; int ret; ret = kstrtou8_from_user(user_buf, count, 0, &val); if (ret) return ret; if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK) return -ERANGE; local->uapsd_queues = val; return count;} static const struct file_operations uapsd_queues_ops = { .read = uapsd_queues_read, .write = uapsd_queues_write, .open = mac80211_open_file_generic, .llseek = default_llseek,}; static ssize_t uapsd_max_sp_len_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos){ struct ieee80211_local *local = file->private_data; return mac80211_format_buffer(user_buf, count, ppos, "0x%x\n", local->uapsd_max_sp_len);} static ssize_t uapsd_max_sp_len_write(struct file *file, const char __user *user_buf, size_t count, loff_t *ppos){ struct ieee80211_local *local = file->private_data; unsigned long val; char buf[10]; size_t len; int ret; len = min(count, sizeof(buf) - 1); if (copy_from_user(buf, user_buf, len)) return -EFAULT; buf[len] = '\0'; ret = strict_strtoul(buf, 0, &val); if (ret) return -EINVAL; if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK) return -ERANGE; local->uapsd_max_sp_len = val; return count;} static const struct file_operations uapsd_max_sp_len_ops = { .read = uapsd_max_sp_len_read, .write = uapsd_max_sp_len_write, .open = mac80211_open_file_generic, .llseek = default_llseek,}; static ssize_t channel_type_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos){ struct ieee80211_local *local = file->private_data; const char *buf; switch (local->hw.conf.channel_type) { case NL80211_CHAN_NO_HT: buf = "no ht\n"; break; case NL80211_CHAN_HT20: buf = "ht20\n"; break; case NL80211_CHAN_HT40MINUS: buf = "ht40-\n"; break; case NL80211_CHAN_HT40PLUS: buf = "ht40+\n"; break; default: buf = "???"; break; } return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));} static ssize_t hwflags_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos){ struct ieee80211_local *local = file->private_data; int mxln = 500; ssize_t rv; char *buf = kzalloc(mxln, GFP_KERNEL); int sf = 0; /* how many written so far */ if (!buf) return 0; sf += snprintf(buf, mxln - sf, "0x%x\n", local->hw.flags); if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) sf += snprintf(buf + sf, mxln - sf, "HAS_RATE_CONTROL\n"); if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS) sf += snprintf(buf + sf, mxln - sf, "RX_INCLUDES_FCS\n"); if (local->hw.flags & IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING) sf += snprintf(buf + sf, mxln - sf, "HOST_BCAST_PS_BUFFERING\n"); if (local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE) sf += snprintf(buf + sf, mxln - sf, "2GHZ_SHORT_SLOT_INCAPABLE\n"); if (local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE) sf += snprintf(buf + sf, mxln - sf, "2GHZ_SHORT_PREAMBLE_INCAPABLE\n"); if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC) sf += snprintf(buf + sf, mxln - sf, "SIGNAL_UNSPEC\n"); if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM) sf += snprintf(buf + sf, mxln - sf, "SIGNAL_DBM\n"); if (local->hw.flags & IEEE80211_HW_NEED_DTIM_PERIOD) sf += snprintf(buf + sf, mxln - sf, "NEED_DTIM_PERIOD\n"); if (local->hw.flags & IEEE80211_HW_SPECTRUM_MGMT) sf += snprintf(buf + sf, mxln - sf, "SPECTRUM_MGMT\n"); if (local->hw.flags & IEEE80211_HW_AMPDU_AGGREGATION) sf += snprintf(buf + sf, mxln - sf, "AMPDU_AGGREGATION\n"); if (local->hw.flags & IEEE80211_HW_SUPPORTS_PS) sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_PS\n"); if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK) sf += snprintf(buf + sf, mxln - sf, "PS_NULLFUNC_STACK\n"); if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS) sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_DYNAMIC_PS\n"); if (local->hw.flags & IEEE80211_HW_MFP_CAPABLE) sf += snprintf(buf + sf, mxln - sf, "MFP_CAPABLE\n"); if (local->hw.flags & IEEE80211_HW_BEACON_FILTER) sf += snprintf(buf + sf, mxln - sf, "BEACON_FILTER\n"); if (local->hw.flags & IEEE80211_HW_SUPPORTS_STATIC_SMPS) sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_STATIC_SMPS\n"); if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS) sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_DYNAMIC_SMPS\n"); if (local->hw.flags & IEEE80211_HW_SUPPORTS_UAPSD) sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_UAPSD\n"); if (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS) sf += snprintf(buf + sf, mxln - sf, "REPORTS_TX_ACK_STATUS\n"); if (local->hw.flags & IEEE80211_HW_CONNECTION_MONITOR) sf += snprintf(buf + sf, mxln - sf, "CONNECTION_MONITOR\n"); if (local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_RSSI) sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_CQM_RSSI\n"); if (local->hw.flags & IEEE80211_HW_SUPPORTS_PER_STA_GTK) sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_PER_STA_GTK\n"); if (local->hw.flags & IEEE80211_HW_AP_LINK_PS) sf += snprintf(buf + sf, mxln - sf, "AP_LINK_PS\n"); if (local->hw.flags & IEEE80211_HW_TX_AMPDU_SETUP_IN_HW) sf += snprintf(buf + sf, mxln - sf, "TX_AMPDU_SETUP_IN_HW\n"); rv = simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf)); kfree(buf); return rv;} static ssize_t queues_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos){ struct ieee80211_local *local = file->private_data; unsigned long flags; char buf[IEEE80211_MAX_QUEUES * 20]; int q, res = 0; spin_lock_irqsave(&local->queue_stop_reason_lock, flags); for (q = 0; q < local->hw.queues; q++) res += sprintf(buf + res, "%02d: %#.8lx/%d\n", q, local->queue_stop_reasons[q], skb_queue_len(&local->pending[q])); spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags); return simple_read_from_buffer(user_buf, count, ppos, buf, res);} DEBUGFS_READONLY_FILE_OPS(hwflags);DEBUGFS_READONLY_FILE_OPS(channel_type);DEBUGFS_READONLY_FILE_OPS(queues); /* statistics stuff */ static ssize_t format_devstat_counter(struct ieee80211_local *local, char __user *userbuf, size_t count, loff_t *ppos, int (*printvalue)(struct ieee80211_low_level_stats *stats, char *buf, int buflen)){ struct ieee80211_low_level_stats stats; char buf[20]; int res; rtnl_lock(); res = drv_get_stats(local, &stats); rtnl_unlock(); if (res) return res; res = printvalue(&stats, buf, sizeof(buf)); return simple_read_from_buffer(userbuf, count, ppos, buf, res);} #define DEBUGFS_DEVSTATS_FILE(name) \static int print_devstats_##name(struct ieee80211_low_level_stats *stats,\ char *buf, int buflen) \{ \ return scnprintf(buf, buflen, "%u\n", stats->name); \} \static ssize_t stats_ ##name## _read(struct file *file, \ char __user *userbuf, \ size_t count, loff_t *ppos) \{ \ return format_devstat_counter(file->private_data, \ userbuf, \ count, \ ppos, \ print_devstats_##name); \} \ \static const struct file_operations stats_ ##name## _ops = { \ .read = stats_ ##name## _read, \ .open = mac80211_open_file_generic, \ .llseek = generic_file_llseek, \}; #define DEBUGFS_STATS_ADD(name, field) \ debugfs_create_u32(#name, 0400, statsd, (u32 *) &field);#define DEBUGFS_DEVSTATS_ADD(name) \ debugfs_create_file(#name, 0400, statsd, local, &stats_ ##name## _ops); DEBUGFS_DEVSTATS_FILE(dot11ACKFailureCount);DEBUGFS_DEVSTATS_FILE(dot11RTSFailureCount);DEBUGFS_DEVSTATS_FILE(dot11FCSErrorCount);DEBUGFS_DEVSTATS_FILE(dot11RTSSuccessCount); void debugfs_hw_add(struct ieee80211_local *local){ struct dentry *phyd = local->hw.wiphy->debugfsdir; struct dentry *statsd; if (!phyd) return; local->debugfs.keys = debugfs_create_dir("keys", phyd); DEBUGFS_ADD(frequency); DEBUGFS_ADD(total_ps_buffered); DEBUGFS_ADD(wep_iv); DEBUGFS_ADD(queues); DEBUGFS_ADD_MODE(reset, 0200); DEBUGFS_ADD(noack); DEBUGFS_ADD(uapsd_queues); DEBUGFS_ADD(uapsd_max_sp_len); DEBUGFS_ADD(channel_type); DEBUGFS_ADD(hwflags); DEBUGFS_ADD(user_power); DEBUGFS_ADD(power); statsd = debugfs_create_dir("statistics", phyd); /* if the dir failed, don't put all the other things into the root! */ if (!statsd) return; DEBUGFS_STATS_ADD(transmitted_fragment_count, local->dot11TransmittedFragmentCount); DEBUGFS_STATS_ADD(multicast_transmitted_frame_count, local->dot11MulticastTransmittedFrameCount); DEBUGFS_STATS_ADD(failed_count, local->dot11FailedCount); DEBUGFS_STATS_ADD(retry_count, local->dot11RetryCount); DEBUGFS_STATS_ADD(multiple_retry_count, local->dot11MultipleRetryCount); DEBUGFS_STATS_ADD(frame_duplicate_count, local->dot11FrameDuplicateCount); DEBUGFS_STATS_ADD(received_fragment_count, local->dot11ReceivedFragmentCount); DEBUGFS_STATS_ADD(multicast_received_frame_count, local->dot11MulticastReceivedFrameCount); DEBUGFS_STATS_ADD(transmitted_frame_count, local->dot11TransmittedFrameCount);#ifdef CONFIG_MAC80211_DEBUG_COUNTERS DEBUGFS_STATS_ADD(tx_handlers_drop, local->tx_handlers_drop); DEBUGFS_STATS_ADD(tx_handlers_queued, local->tx_handlers_queued); DEBUGFS_STATS_ADD(tx_handlers_drop_unencrypted, local->tx_handlers_drop_unencrypted); DEBUGFS_STATS_ADD(tx_handlers_drop_fragment, local->tx_handlers_drop_fragment); DEBUGFS_STATS_ADD(tx_handlers_drop_wep, local->tx_handlers_drop_wep); DEBUGFS_STATS_ADD(tx_handlers_drop_not_assoc, local->tx_handlers_drop_not_assoc); DEBUGFS_STATS_ADD(tx_handlers_drop_unauth_port, local->tx_handlers_drop_unauth_port); DEBUGFS_STATS_ADD(rx_handlers_drop, local->rx_handlers_drop); DEBUGFS_STATS_ADD(rx_handlers_queued, local->rx_handlers_queued); DEBUGFS_STATS_ADD(rx_handlers_drop_nullfunc, local->rx_handlers_drop_nullfunc); DEBUGFS_STATS_ADD(rx_handlers_drop_defrag, local->rx_handlers_drop_defrag); DEBUGFS_STATS_ADD(rx_handlers_drop_short, local->rx_handlers_drop_short); DEBUGFS_STATS_ADD(rx_handlers_drop_passive_scan, local->rx_handlers_drop_passive_scan); DEBUGFS_STATS_ADD(tx_expand_skb_head, local->tx_expand_skb_head); DEBUGFS_STATS_ADD(tx_expand_skb_head_cloned, local->tx_expand_skb_head_cloned); DEBUGFS_STATS_ADD(rx_expand_skb_head, local->rx_expand_skb_head); DEBUGFS_STATS_ADD(rx_expand_skb_head2, local->rx_expand_skb_head2); DEBUGFS_STATS_ADD(rx_handlers_fragments, local->rx_handlers_fragments); DEBUGFS_STATS_ADD(tx_status_drop, local->tx_status_drop);#endif DEBUGFS_DEVSTATS_ADD(dot11ACKFailureCount); DEBUGFS_DEVSTATS_ADD(dot11RTSFailureCount); DEBUGFS_DEVSTATS_ADD(dot11FCSErrorCount); DEBUGFS_DEVSTATS_ADD(dot11RTSSuccessCount);}
/*
* mac80211 debugfs for wireless PHYs
*
* Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
*
* GPLv2
*
*/
#include <linux/debugfs.h>
#include <linux/rtnetlink.h>
#include "ieee80211_i.h"
#include "driver-ops.h"
#include "rate.h"
#include "debugfs.h"
int mac80211_open_file_generic(struct inode *inode, struct file *file)
{
file->private_data = inode->i_private;
return 0;
}
#define DEBUGFS_FORMAT_BUFFER_SIZE 100
int mac80211_format_buffer(char __user *userbuf, size_t count,
loff_t *ppos, char *fmt, ...)
{
va_list args;
char buf[DEBUGFS_FORMAT_BUFFER_SIZE];
int res;
va_start(args, fmt);
res = vscnprintf(buf, sizeof(buf), fmt, args);
va_end(args);
return simple_read_from_buffer(userbuf, count, ppos, buf, res);
}
#define DEBUGFS_READONLY_FILE_FN(name, fmt, value...) \
static ssize_t name## _read(struct file *file, char __user *userbuf, \
size_t count, loff_t *ppos) \
{ \
struct ieee80211_local *local = file->private_data; \
\
return mac80211_format_buffer(userbuf, count, ppos, \
fmt "\n", ##value); \
}
#define DEBUGFS_READONLY_FILE_OPS(name) \
static const struct file_operations name## _ops = { \
.read = name## _read, \
.open = mac80211_open_file_generic, \
.llseek = generic_file_llseek, \
};
#define DEBUGFS_READONLY_FILE(name, fmt, value...) \
DEBUGFS_READONLY_FILE_FN(name, fmt, value) \
DEBUGFS_READONLY_FILE_OPS(name)
#define DEBUGFS_ADD(name) \
debugfs_create_file(#name, 0400, phyd, local, &name## _ops);
#define DEBUGFS_ADD_MODE(name, mode) \
debugfs_create_file(#name, mode, phyd, local, &name## _ops);
DEBUGFS_READONLY_FILE(user_power, "%d",
local->user_power_level);
DEBUGFS_READONLY_FILE(power, "%d",
local->hw.conf.power_level);
DEBUGFS_READONLY_FILE(frequency, "%d",
local->hw.conf.channel->center_freq);
DEBUGFS_READONLY_FILE(total_ps_buffered, "%d",
local->total_ps_buffered);
DEBUGFS_READONLY_FILE(wep_iv, "%#08x",
local->wep_iv & 0xffffff);
DEBUGFS_READONLY_FILE(rate_ctrl_alg, "%s",
local->rate_ctrl ? local->rate_ctrl->ops->name : "hw/driver");
static ssize_t reset_write(struct file *file, const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ieee80211_local *local = file->private_data;
rtnl_lock();
__ieee80211_suspend(&local->hw, NULL);
__ieee80211_resume(&local->hw);
rtnl_unlock();
return count;
}
static const struct file_operations reset_ops = {
.write = reset_write,
.open = mac80211_open_file_generic,
.llseek = noop_llseek,
};
static ssize_t noack_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ieee80211_local *local = file->private_data;
return mac80211_format_buffer(user_buf, count, ppos, "%d\n",
local->wifi_wme_noack_test);
}
static ssize_t noack_write(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ieee80211_local *local = file->private_data;
char buf[10];
size_t len;
len = min(count, sizeof(buf) - 1);
if (copy_from_user(buf, user_buf, len))
return -EFAULT;
buf[len] = '\0';
local->wifi_wme_noack_test = !!simple_strtoul(buf, NULL, 0);
return count;
}
static const struct file_operations noack_ops = {
.read = noack_read,
.write = noack_write,
.open = mac80211_open_file_generic,
.llseek = default_llseek,
};
static ssize_t uapsd_queues_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ieee80211_local *local = file->private_data;
return mac80211_format_buffer(user_buf, count, ppos, "0x%x\n",
local->uapsd_queues);
}
static ssize_t uapsd_queues_write(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ieee80211_local *local = file->private_data;
u8 val;
int ret;
ret = kstrtou8_from_user(user_buf, count, 0, &val);
if (ret)
return ret;
if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_AC_MASK)
return -ERANGE;
local->uapsd_queues = val;
return count;
}
static const struct file_operations uapsd_queues_ops = {
.read = uapsd_queues_read,
.write = uapsd_queues_write,
.open = mac80211_open_file_generic,
.llseek = default_llseek,
};
static ssize_t uapsd_max_sp_len_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ieee80211_local *local = file->private_data;
return mac80211_format_buffer(user_buf, count, ppos, "0x%x\n",
local->uapsd_max_sp_len);
}
static ssize_t uapsd_max_sp_len_write(struct file *file,
const char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ieee80211_local *local = file->private_data;
unsigned long val;
char buf[10];
size_t len;
int ret;
len = min(count, sizeof(buf) - 1);
if (copy_from_user(buf, user_buf, len))
return -EFAULT;
buf[len] = '\0';
ret = strict_strtoul(buf, 0, &val);
if (ret)
return -EINVAL;
if (val & ~IEEE80211_WMM_IE_STA_QOSINFO_SP_MASK)
return -ERANGE;
local->uapsd_max_sp_len = val;
return count;
}
static const struct file_operations uapsd_max_sp_len_ops = {
.read = uapsd_max_sp_len_read,
.write = uapsd_max_sp_len_write,
.open = mac80211_open_file_generic,
.llseek = default_llseek,
};
static ssize_t channel_type_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ieee80211_local *local = file->private_data;
const char *buf;
switch (local->hw.conf.channel_type) {
case NL80211_CHAN_NO_HT:
buf = "no ht\n";
break;
case NL80211_CHAN_HT20:
buf = "ht20\n";
break;
case NL80211_CHAN_HT40MINUS:
buf = "ht40-\n";
break;
case NL80211_CHAN_HT40PLUS:
buf = "ht40+\n";
break;
default:
buf = "???";
break;
}
return simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
}
static ssize_t hwflags_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ieee80211_local *local = file->private_data;
int mxln = 500;
ssize_t rv;
char *buf = kzalloc(mxln, GFP_KERNEL);
int sf = 0; /* how many written so far */
if (!buf)
return 0;
sf += snprintf(buf, mxln - sf, "0x%x\n", local->hw.flags);
if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL)
sf += snprintf(buf + sf, mxln - sf, "HAS_RATE_CONTROL\n");
if (local->hw.flags & IEEE80211_HW_RX_INCLUDES_FCS)
sf += snprintf(buf + sf, mxln - sf, "RX_INCLUDES_FCS\n");
if (local->hw.flags & IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING)
sf += snprintf(buf + sf, mxln - sf,
"HOST_BCAST_PS_BUFFERING\n");
if (local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE)
sf += snprintf(buf + sf, mxln - sf,
"2GHZ_SHORT_SLOT_INCAPABLE\n");
if (local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE)
sf += snprintf(buf + sf, mxln - sf,
"2GHZ_SHORT_PREAMBLE_INCAPABLE\n");
if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)
sf += snprintf(buf + sf, mxln - sf, "SIGNAL_UNSPEC\n");
if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM)
sf += snprintf(buf + sf, mxln - sf, "SIGNAL_DBM\n");
if (local->hw.flags & IEEE80211_HW_NEED_DTIM_PERIOD)
sf += snprintf(buf + sf, mxln - sf, "NEED_DTIM_PERIOD\n");
if (local->hw.flags & IEEE80211_HW_SPECTRUM_MGMT)
sf += snprintf(buf + sf, mxln - sf, "SPECTRUM_MGMT\n");
if (local->hw.flags & IEEE80211_HW_AMPDU_AGGREGATION)
sf += snprintf(buf + sf, mxln - sf, "AMPDU_AGGREGATION\n");
if (local->hw.flags & IEEE80211_HW_SUPPORTS_PS)
sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_PS\n");
if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)
sf += snprintf(buf + sf, mxln - sf, "PS_NULLFUNC_STACK\n");
if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_DYNAMIC_PS\n");
if (local->hw.flags & IEEE80211_HW_MFP_CAPABLE)
sf += snprintf(buf + sf, mxln - sf, "MFP_CAPABLE\n");
if (local->hw.flags & IEEE80211_HW_BEACON_FILTER)
sf += snprintf(buf + sf, mxln - sf, "BEACON_FILTER\n");
if (local->hw.flags & IEEE80211_HW_SUPPORTS_STATIC_SMPS)
sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_STATIC_SMPS\n");
if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS)
sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_DYNAMIC_SMPS\n");
if (local->hw.flags & IEEE80211_HW_SUPPORTS_UAPSD)
sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_UAPSD\n");
if (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS)
sf += snprintf(buf + sf, mxln - sf, "REPORTS_TX_ACK_STATUS\n");
if (local->hw.flags & IEEE80211_HW_CONNECTION_MONITOR)
sf += snprintf(buf + sf, mxln - sf, "CONNECTION_MONITOR\n");
if (local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_RSSI)
sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_CQM_RSSI\n");
if (local->hw.flags & IEEE80211_HW_SUPPORTS_PER_STA_GTK)
sf += snprintf(buf + sf, mxln - sf, "SUPPORTS_PER_STA_GTK\n");
if (local->hw.flags & IEEE80211_HW_AP_LINK_PS)
sf += snprintf(buf + sf, mxln - sf, "AP_LINK_PS\n");
if (local->hw.flags & IEEE80211_HW_TX_AMPDU_SETUP_IN_HW)
sf += snprintf(buf + sf, mxln - sf, "TX_AMPDU_SETUP_IN_HW\n");
rv = simple_read_from_buffer(user_buf, count, ppos, buf, strlen(buf));
kfree(buf);
return rv;
}
static ssize_t queues_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
struct ieee80211_local *local = file->private_data;
unsigned long flags;
char buf[IEEE80211_MAX_QUEUES * 20];
int q, res = 0;
spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
for (q = 0; q < local->hw.queues; q++)
res += sprintf(buf + res, "%02d: %#.8lx/%d\n", q,
local->queue_stop_reasons[q],
skb_queue_len(&local->pending[q]));
spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
return simple_read_from_buffer(user_buf, count, ppos, buf, res);
}
DEBUGFS_READONLY_FILE_OPS(hwflags);
DEBUGFS_READONLY_FILE_OPS(channel_type);
DEBUGFS_READONLY_FILE_OPS(queues);
/* statistics stuff */
static ssize_t format_devstat_counter(struct ieee80211_local *local,
char __user *userbuf,
size_t count, loff_t *ppos,
int (*printvalue)(struct ieee80211_low_level_stats *stats, char *buf,
int buflen))
{
struct ieee80211_low_level_stats stats;
char buf[20];
int res;
rtnl_lock();
res = drv_get_stats(local, &stats);
rtnl_unlock();
if (res)
return res;
res = printvalue(&stats, buf, sizeof(buf));
return simple_read_from_buffer(userbuf, count, ppos, buf, res);
}
#define DEBUGFS_DEVSTATS_FILE(name) \
static int print_devstats_##name(struct ieee80211_low_level_stats *stats,\
char *buf, int buflen) \
{ \
return scnprintf(buf, buflen, "%u\n", stats->name); \
} \
static ssize_t stats_ ##name## _read(struct file *file, \
char __user *userbuf, \
size_t count, loff_t *ppos) \
{ \
return format_devstat_counter(file->private_data, \
userbuf, \
count, \
ppos, \
print_devstats_##name); \
} \
\
static const struct file_operations stats_ ##name## _ops = { \
.read = stats_ ##name## _read, \
.open = mac80211_open_file_generic, \
.llseek = generic_file_llseek, \
};
#define DEBUGFS_STATS_ADD(name, field) \
debugfs_create_u32(#name, 0400, statsd, (u32 *) &field);
#define DEBUGFS_DEVSTATS_ADD(name) \
debugfs_create_file(#name, 0400, statsd, local, &stats_ ##name## _ops);
DEBUGFS_DEVSTATS_FILE(dot11ACKFailureCount);
DEBUGFS_DEVSTATS_FILE(dot11RTSFailureCount);
DEBUGFS_DEVSTATS_FILE(dot11FCSErrorCount);
DEBUGFS_DEVSTATS_FILE(dot11RTSSuccessCount);
void debugfs_hw_add(struct ieee80211_local *local)
{
struct dentry *phyd = local->hw.wiphy->debugfsdir;
struct dentry *statsd;
if (!phyd)
return;
local->debugfs.keys = debugfs_create_dir("keys", phyd);
DEBUGFS_ADD(frequency);
DEBUGFS_ADD(total_ps_buffered);
DEBUGFS_ADD(wep_iv);
DEBUGFS_ADD(queues);
DEBUGFS_ADD_MODE(reset, 0200);
DEBUGFS_ADD(noack);
DEBUGFS_ADD(uapsd_queues);
DEBUGFS_ADD(uapsd_max_sp_len);
DEBUGFS_ADD(channel_type);
DEBUGFS_ADD(hwflags);
DEBUGFS_ADD(user_power);
DEBUGFS_ADD(power);
statsd = debugfs_create_dir("statistics", phyd);
/* if the dir failed, don't put all the other things into the root! */
if (!statsd)
return;
DEBUGFS_STATS_ADD(transmitted_fragment_count,
local->dot11TransmittedFragmentCount);
DEBUGFS_STATS_ADD(multicast_transmitted_frame_count,
local->dot11MulticastTransmittedFrameCount);
DEBUGFS_STATS_ADD(failed_count, local->dot11FailedCount);
DEBUGFS_STATS_ADD(retry_count, local->dot11RetryCount);
DEBUGFS_STATS_ADD(multiple_retry_count,
local->dot11MultipleRetryCount);
DEBUGFS_STATS_ADD(frame_duplicate_count,
local->dot11FrameDuplicateCount);
DEBUGFS_STATS_ADD(received_fragment_count,
local->dot11ReceivedFragmentCount);
DEBUGFS_STATS_ADD(multicast_received_frame_count,
local->dot11MulticastReceivedFrameCount);
DEBUGFS_STATS_ADD(transmitted_frame_count,
local->dot11TransmittedFrameCount);
#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
DEBUGFS_STATS_ADD(tx_handlers_drop, local->tx_handlers_drop);
DEBUGFS_STATS_ADD(tx_handlers_queued, local->tx_handlers_queued);
DEBUGFS_STATS_ADD(tx_handlers_drop_unencrypted,
local->tx_handlers_drop_unencrypted);
DEBUGFS_STATS_ADD(tx_handlers_drop_fragment,
local->tx_handlers_drop_fragment);
DEBUGFS_STATS_ADD(tx_handlers_drop_wep,
local->tx_handlers_drop_wep);
DEBUGFS_STATS_ADD(tx_handlers_drop_not_assoc,
local->tx_handlers_drop_not_assoc);
DEBUGFS_STATS_ADD(tx_handlers_drop_unauth_port,
local->tx_handlers_drop_unauth_port);
DEBUGFS_STATS_ADD(rx_handlers_drop, local->rx_handlers_drop);
DEBUGFS_STATS_ADD(rx_handlers_queued, local->rx_handlers_queued);
DEBUGFS_STATS_ADD(rx_handlers_drop_nullfunc,
local->rx_handlers_drop_nullfunc);
DEBUGFS_STATS_ADD(rx_handlers_drop_defrag,
local->rx_handlers_drop_defrag);
DEBUGFS_STATS_ADD(rx_handlers_drop_short,
local->rx_handlers_drop_short);
DEBUGFS_STATS_ADD(rx_handlers_drop_passive_scan,
local->rx_handlers_drop_passive_scan);
DEBUGFS_STATS_ADD(tx_expand_skb_head,
local->tx_expand_skb_head);
DEBUGFS_STATS_ADD(tx_expand_skb_head_cloned,
local->tx_expand_skb_head_cloned);
DEBUGFS_STATS_ADD(rx_expand_skb_head,
local->rx_expand_skb_head);
DEBUGFS_STATS_ADD(rx_expand_skb_head2,
local->rx_expand_skb_head2);
DEBUGFS_STATS_ADD(rx_handlers_fragments,
local->rx_handlers_fragments);
DEBUGFS_STATS_ADD(tx_status_drop,
local->tx_status_drop);
#endif
DEBUGFS_DEVSTATS_ADD(dot11ACKFailureCount);
DEBUGFS_DEVSTATS_ADD(dot11RTSFailureCount);
DEBUGFS_DEVSTATS_ADD(dot11FCSErrorCount);
DEBUGFS_DEVSTATS_ADD(dot11RTSSuccessCount);
}