290 строки
8.9 KiB
C
290 строки
8.9 KiB
C
/*
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* Copyright 2003-2005 Devicescape Software, Inc.
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* Copyright (c) 2006 Jiri Benc <jbenc@suse.cz>
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* Copyright 2007 Johannes Berg <johannes@sipsolutions.net>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/debugfs.h>
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#include <linux/ieee80211.h>
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#include "ieee80211_i.h"
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#include "debugfs.h"
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#include "debugfs_sta.h"
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#include "sta_info.h"
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/* sta attributtes */
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#define STA_READ(name, buflen, field, format_string) \
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static ssize_t sta_ ##name## _read(struct file *file, \
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char __user *userbuf, \
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size_t count, loff_t *ppos) \
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{ \
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int res; \
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struct sta_info *sta = file->private_data; \
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char buf[buflen]; \
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res = scnprintf(buf, buflen, format_string, sta->field); \
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return simple_read_from_buffer(userbuf, count, ppos, buf, res); \
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}
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#define STA_READ_D(name, field) STA_READ(name, 20, field, "%d\n")
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#define STA_READ_U(name, field) STA_READ(name, 20, field, "%u\n")
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#define STA_READ_LU(name, field) STA_READ(name, 20, field, "%lu\n")
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#define STA_READ_S(name, field) STA_READ(name, 20, field, "%s\n")
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#define STA_OPS(name) \
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static const struct file_operations sta_ ##name## _ops = { \
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.read = sta_##name##_read, \
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.open = mac80211_open_file_generic, \
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}
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#define STA_OPS_WR(name) \
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static const struct file_operations sta_ ##name## _ops = { \
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.read = sta_##name##_read, \
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.write = sta_##name##_write, \
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.open = mac80211_open_file_generic, \
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}
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#define STA_FILE(name, field, format) \
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STA_READ_##format(name, field) \
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STA_OPS(name)
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STA_FILE(aid, sta.aid, D);
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STA_FILE(dev, sdata->dev->name, S);
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STA_FILE(rx_packets, rx_packets, LU);
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STA_FILE(tx_packets, tx_packets, LU);
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STA_FILE(rx_bytes, rx_bytes, LU);
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STA_FILE(tx_bytes, tx_bytes, LU);
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STA_FILE(rx_duplicates, num_duplicates, LU);
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STA_FILE(rx_fragments, rx_fragments, LU);
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STA_FILE(rx_dropped, rx_dropped, LU);
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STA_FILE(tx_fragments, tx_fragments, LU);
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STA_FILE(tx_filtered, tx_filtered_count, LU);
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STA_FILE(tx_retry_failed, tx_retry_failed, LU);
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STA_FILE(tx_retry_count, tx_retry_count, LU);
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STA_FILE(last_signal, last_signal, D);
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STA_FILE(last_qual, last_qual, D);
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STA_FILE(last_noise, last_noise, D);
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STA_FILE(wep_weak_iv_count, wep_weak_iv_count, LU);
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static ssize_t sta_flags_read(struct file *file, char __user *userbuf,
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size_t count, loff_t *ppos)
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{
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char buf[100];
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struct sta_info *sta = file->private_data;
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u32 staflags = get_sta_flags(sta);
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int res = scnprintf(buf, sizeof(buf), "%s%s%s%s%s%s%s",
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staflags & WLAN_STA_AUTH ? "AUTH\n" : "",
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staflags & WLAN_STA_ASSOC ? "ASSOC\n" : "",
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staflags & WLAN_STA_PS ? "PS\n" : "",
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staflags & WLAN_STA_AUTHORIZED ? "AUTHORIZED\n" : "",
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staflags & WLAN_STA_SHORT_PREAMBLE ? "SHORT PREAMBLE\n" : "",
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staflags & WLAN_STA_WME ? "WME\n" : "",
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staflags & WLAN_STA_WDS ? "WDS\n" : "");
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return simple_read_from_buffer(userbuf, count, ppos, buf, res);
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}
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STA_OPS(flags);
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static ssize_t sta_num_ps_buf_frames_read(struct file *file,
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char __user *userbuf,
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size_t count, loff_t *ppos)
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{
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char buf[20];
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struct sta_info *sta = file->private_data;
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int res = scnprintf(buf, sizeof(buf), "%u\n",
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skb_queue_len(&sta->ps_tx_buf));
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return simple_read_from_buffer(userbuf, count, ppos, buf, res);
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}
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STA_OPS(num_ps_buf_frames);
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static ssize_t sta_inactive_ms_read(struct file *file, char __user *userbuf,
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size_t count, loff_t *ppos)
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{
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char buf[20];
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struct sta_info *sta = file->private_data;
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int res = scnprintf(buf, sizeof(buf), "%d\n",
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jiffies_to_msecs(jiffies - sta->last_rx));
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return simple_read_from_buffer(userbuf, count, ppos, buf, res);
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}
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STA_OPS(inactive_ms);
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static ssize_t sta_last_seq_ctrl_read(struct file *file, char __user *userbuf,
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size_t count, loff_t *ppos)
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{
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char buf[15*NUM_RX_DATA_QUEUES], *p = buf;
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int i;
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struct sta_info *sta = file->private_data;
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for (i = 0; i < NUM_RX_DATA_QUEUES; i++)
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p += scnprintf(p, sizeof(buf)+buf-p, "%x ",
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le16_to_cpu(sta->last_seq_ctrl[i]));
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p += scnprintf(p, sizeof(buf)+buf-p, "\n");
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return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
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}
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STA_OPS(last_seq_ctrl);
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static ssize_t sta_agg_status_read(struct file *file, char __user *userbuf,
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size_t count, loff_t *ppos)
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{
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char buf[768], *p = buf;
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int i;
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struct sta_info *sta = file->private_data;
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p += scnprintf(p, sizeof(buf)+buf-p, "Agg state for STA is:\n");
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p += scnprintf(p, sizeof(buf)+buf-p, " STA next dialog_token is %d \n "
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"TIDs info is: \n TID :",
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(sta->ampdu_mlme.dialog_token_allocator + 1));
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for (i = 0; i < STA_TID_NUM; i++)
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p += scnprintf(p, sizeof(buf)+buf-p, "%5d", i);
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p += scnprintf(p, sizeof(buf)+buf-p, "\n RX :");
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for (i = 0; i < STA_TID_NUM; i++)
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p += scnprintf(p, sizeof(buf)+buf-p, "%5d",
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sta->ampdu_mlme.tid_state_rx[i]);
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p += scnprintf(p, sizeof(buf)+buf-p, "\n DTKN:");
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for (i = 0; i < STA_TID_NUM; i++)
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p += scnprintf(p, sizeof(buf)+buf-p, "%5d",
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sta->ampdu_mlme.tid_state_rx[i]?
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sta->ampdu_mlme.tid_rx[i]->dialog_token : 0);
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p += scnprintf(p, sizeof(buf)+buf-p, "\n TX :");
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for (i = 0; i < STA_TID_NUM; i++)
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p += scnprintf(p, sizeof(buf)+buf-p, "%5d",
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sta->ampdu_mlme.tid_state_tx[i]);
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p += scnprintf(p, sizeof(buf)+buf-p, "\n DTKN:");
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for (i = 0; i < STA_TID_NUM; i++)
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p += scnprintf(p, sizeof(buf)+buf-p, "%5d",
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sta->ampdu_mlme.tid_state_tx[i]?
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sta->ampdu_mlme.tid_tx[i]->dialog_token : 0);
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p += scnprintf(p, sizeof(buf)+buf-p, "\n SSN :");
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for (i = 0; i < STA_TID_NUM; i++)
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p += scnprintf(p, sizeof(buf)+buf-p, "%5d",
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sta->ampdu_mlme.tid_state_tx[i]?
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sta->ampdu_mlme.tid_tx[i]->ssn : 0);
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p += scnprintf(p, sizeof(buf)+buf-p, "\n");
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return simple_read_from_buffer(userbuf, count, ppos, buf, p - buf);
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}
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static ssize_t sta_agg_status_write(struct file *file,
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const char __user *user_buf, size_t count, loff_t *ppos)
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{
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struct sta_info *sta = file->private_data;
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struct ieee80211_local *local = sta->sdata->local;
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struct ieee80211_hw *hw = &local->hw;
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u8 *da = sta->sta.addr;
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static int tid_static_tx[16] = {0, 0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0, 0};
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static int tid_static_rx[16] = {1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 1, 1, 1, 1};
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char *endp;
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char buf[32];
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int buf_size, rs;
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unsigned int tid_num;
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char state[4];
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memset(buf, 0x00, sizeof(buf));
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buf_size = min(count, (sizeof(buf)-1));
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if (copy_from_user(buf, user_buf, buf_size))
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return -EFAULT;
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tid_num = simple_strtoul(buf, &endp, 0);
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if (endp == buf)
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return -EINVAL;
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if ((tid_num >= 100) && (tid_num <= 115)) {
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/* toggle Rx aggregation command */
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tid_num = tid_num - 100;
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if (tid_static_rx[tid_num] == 1) {
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strcpy(state, "off ");
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ieee80211_sta_stop_rx_ba_session(sta->sdata, da, tid_num, 0,
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WLAN_REASON_QSTA_REQUIRE_SETUP);
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sta->ampdu_mlme.tid_state_rx[tid_num] |=
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HT_AGG_STATE_DEBUGFS_CTL;
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tid_static_rx[tid_num] = 0;
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} else {
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strcpy(state, "on ");
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sta->ampdu_mlme.tid_state_rx[tid_num] &=
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~HT_AGG_STATE_DEBUGFS_CTL;
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tid_static_rx[tid_num] = 1;
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}
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printk(KERN_DEBUG "debugfs - try switching tid %u %s\n",
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tid_num, state);
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} else if ((tid_num >= 0) && (tid_num <= 15)) {
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/* toggle Tx aggregation command */
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if (tid_static_tx[tid_num] == 0) {
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strcpy(state, "on ");
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rs = ieee80211_start_tx_ba_session(hw, da, tid_num);
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if (rs == 0)
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tid_static_tx[tid_num] = 1;
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} else {
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strcpy(state, "off");
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rs = ieee80211_stop_tx_ba_session(hw, da, tid_num, 1);
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if (rs == 0)
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tid_static_tx[tid_num] = 0;
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}
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printk(KERN_DEBUG "debugfs - switching tid %u %s, return=%d\n",
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tid_num, state, rs);
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}
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return count;
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}
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STA_OPS_WR(agg_status);
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#define DEBUGFS_ADD(name) \
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sta->debugfs.name = debugfs_create_file(#name, 0400, \
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sta->debugfs.dir, sta, &sta_ ##name## _ops);
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#define DEBUGFS_DEL(name) \
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debugfs_remove(sta->debugfs.name);\
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sta->debugfs.name = NULL;
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void ieee80211_sta_debugfs_add(struct sta_info *sta)
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{
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struct dentry *stations_dir = sta->local->debugfs.stations;
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DECLARE_MAC_BUF(mbuf);
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u8 *mac;
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sta->debugfs.add_has_run = true;
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if (!stations_dir)
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return;
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mac = print_mac(mbuf, sta->sta.addr);
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/*
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* This might fail due to a race condition:
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* When mac80211 unlinks a station, the debugfs entries
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* remain, but it is already possible to link a new
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* station with the same address which triggers adding
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* it to debugfs; therefore, if the old station isn't
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* destroyed quickly enough the old station's debugfs
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* dir might still be around.
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*/
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sta->debugfs.dir = debugfs_create_dir(mac, stations_dir);
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if (!sta->debugfs.dir)
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return;
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DEBUGFS_ADD(flags);
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DEBUGFS_ADD(num_ps_buf_frames);
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DEBUGFS_ADD(inactive_ms);
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DEBUGFS_ADD(last_seq_ctrl);
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DEBUGFS_ADD(agg_status);
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}
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void ieee80211_sta_debugfs_remove(struct sta_info *sta)
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{
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DEBUGFS_DEL(flags);
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DEBUGFS_DEL(num_ps_buf_frames);
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DEBUGFS_DEL(inactive_ms);
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DEBUGFS_DEL(last_seq_ctrl);
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DEBUGFS_DEL(agg_status);
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debugfs_remove(sta->debugfs.dir);
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sta->debugfs.dir = NULL;
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}
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