From e9f207f0ff90bf60b825800d7450e6f2ff2eab88 Mon Sep 17 00:00:00 2001 From: Jiri Benc Date: Sat, 5 May 2007 11:46:38 -0700 Subject: [MAC80211]: Add debugfs attributes. Export various mac80211 internal variables through debugfs. Signed-off-by: Jiri Benc Signed-off-by: John W. Linville Signed-off-by: David S. Miller --- net/mac80211/debugfs_sta.c | 246 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 246 insertions(+) create mode 100644 net/mac80211/debugfs_sta.c (limited to 'net/mac80211/debugfs_sta.c') diff --git a/net/mac80211/debugfs_sta.c b/net/mac80211/debugfs_sta.c new file mode 100644 index 00000000000..d41e696f398 --- /dev/null +++ b/net/mac80211/debugfs_sta.c @@ -0,0 +1,246 @@ +/* + * Copyright 2003-2005 Devicescape Software, Inc. + * Copyright (c) 2006 Jiri Benc + * Copyright 2007 Johannes Berg + * + * 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 +#include +#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_READ_RATE(name, field) \ +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; \ + struct ieee80211_local *local = wdev_priv(sta->dev->ieee80211_ptr);\ + struct ieee80211_hw_mode *mode = local->oper_hw_mode; \ + char buf[20]; \ + int res = scnprintf(buf, sizeof(buf), "%d\n", \ + (sta->field >= 0 && \ + sta->field < mode->num_rates) ? \ + mode->rates[sta->field].rate : -1); \ + return simple_read_from_buffer(userbuf, count, ppos, buf, res); \ +} + +#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, aid, D); +STA_FILE(key_idx_compression, key_idx_compression, D); +STA_FILE(dev, dev->name, S); +STA_FILE(vlan_id, vlan_id, D); +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(txrate, txrate, RATE); +STA_FILE(last_txrate, last_txrate, RATE); +STA_FILE(tx_retry_failed, tx_retry_failed, LU); +STA_FILE(tx_retry_count, tx_retry_count, LU); +STA_FILE(last_rssi, last_rssi, D); +STA_FILE(last_signal, last_signal, D); +STA_FILE(last_noise, last_noise, D); +STA_FILE(channel_use, channel_use, D); +STA_FILE(wep_weak_iv_count, wep_weak_iv_count, D); + +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; + int res = scnprintf(buf, sizeof(buf), "%s%s%s%s%s%s%s%s%s", + sta->flags & WLAN_STA_AUTH ? "AUTH\n" : "", + sta->flags & WLAN_STA_ASSOC ? "ASSOC\n" : "", + sta->flags & WLAN_STA_PS ? "PS\n" : "", + sta->flags & WLAN_STA_TIM ? "TIM\n" : "", + sta->flags & WLAN_STA_PERM ? "PERM\n" : "", + sta->flags & WLAN_STA_AUTHORIZED ? "AUTHORIZED\n" : "", + sta->flags & WLAN_STA_SHORT_PREAMBLE ? "SHORT PREAMBLE\n" : "", + sta->flags & WLAN_STA_WME ? "WME\n" : "", + sta->flags & WLAN_STA_WDS ? "WDS\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_last_ack_rssi_read(struct file *file, char __user *userbuf, + size_t count, loff_t *ppos) +{ + char buf[100]; + struct sta_info *sta = file->private_data; + int res = scnprintf(buf, sizeof(buf), "%d %d %d\n", + sta->last_ack_rssi[0], + sta->last_ack_rssi[1], + sta->last_ack_rssi[2]); + return simple_read_from_buffer(userbuf, count, ppos, buf, res); +} +STA_OPS(last_ack_rssi); + +static ssize_t sta_last_ack_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", + sta->last_ack ? + jiffies_to_msecs(jiffies - sta->last_ack) : -1); + return simple_read_from_buffer(userbuf, count, ppos, buf, res); +} +STA_OPS(last_ack_ms); + +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 ", + 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); + +#ifdef CONFIG_MAC80211_DEBUG_COUNTERS +static ssize_t sta_wme_rx_queue_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, "%u ", + sta->wme_rx_queue[i]); + p += scnprintf(p, sizeof(buf)+buf-p, "\n"); + return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); +} +STA_OPS(wme_rx_queue); + +static ssize_t sta_wme_tx_queue_read(struct file *file, char __user *userbuf, + size_t count, loff_t *ppos) +{ + char buf[15*NUM_TX_DATA_QUEUES], *p = buf; + int i; + struct sta_info *sta = file->private_data; + for (i = 0; i < NUM_TX_DATA_QUEUES; i++) + p += scnprintf(p, sizeof(buf)+buf-p, "%u ", + sta->wme_tx_queue[i]); + p += scnprintf(p, sizeof(buf)+buf-p, "\n"); + return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf); +} +STA_OPS(wme_tx_queue); +#endif + +#define DEBUGFS_ADD(name) \ + sta->debugfs.name = debugfs_create_file(#name, 0444, \ + sta->debugfs.dir, sta, &sta_ ##name## _ops); + +#define DEBUGFS_DEL(name) \ + debugfs_remove(sta->debugfs.name);\ + sta->debugfs.name = NULL; + + +void ieee80211_sta_debugfs_add(struct sta_info *sta) +{ + char buf[3*6]; + struct dentry *stations_dir = sta->local->debugfs.stations; + + if (!stations_dir) + return; + + sprintf(buf, MAC_FMT, MAC_ARG(sta->addr)); + + sta->debugfs.dir = debugfs_create_dir(buf, stations_dir); + if (!sta->debugfs.dir) + return; + + DEBUGFS_ADD(flags); + DEBUGFS_ADD(num_ps_buf_frames); + DEBUGFS_ADD(last_ack_rssi); + DEBUGFS_ADD(last_ack_ms); + DEBUGFS_ADD(inactive_ms); + DEBUGFS_ADD(last_seq_ctrl); +#ifdef CONFIG_MAC80211_DEBUG_COUNTERS + DEBUGFS_ADD(wme_rx_queue); + DEBUGFS_ADD(wme_tx_queue); +#endif +} + +void ieee80211_sta_debugfs_remove(struct sta_info *sta) +{ + DEBUGFS_DEL(flags); + DEBUGFS_DEL(num_ps_buf_frames); + DEBUGFS_DEL(last_ack_rssi); + DEBUGFS_DEL(last_ack_ms); + DEBUGFS_DEL(inactive_ms); + DEBUGFS_DEL(last_seq_ctrl); +#ifdef CONFIG_MAC80211_DEBUG_COUNTERS + DEBUGFS_DEL(wme_rx_queue); + DEBUGFS_DEL(wme_tx_queue); +#endif + + debugfs_remove(sta->debugfs.dir); + sta->debugfs.dir = NULL; +} -- cgit v1.2.3