2012-05-12 08:09:43 +08:00
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/* Copyright (C) 2010-2012 B.A.T.M.A.N. contributors:
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2010-12-13 19:19:28 +08:00
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*
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* Marek Lindner
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of version 2 of the GNU General Public
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* License as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA
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*/
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#include "main.h"
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#include <linux/debugfs.h>
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#include "bat_debugfs.h"
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#include "translation-table.h"
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#include "originator.h"
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#include "hard-interface.h"
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#include "gateway_common.h"
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#include "gateway_client.h"
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#include "soft-interface.h"
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#include "vis.h"
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#include "icmp_socket.h"
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2012-01-23 03:00:21 +08:00
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#include "bridge_loop_avoidance.h"
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2010-12-13 19:19:28 +08:00
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2012-05-13 00:33:50 +08:00
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static struct dentry *batadv_debugfs;
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2010-12-13 19:19:28 +08:00
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#ifdef CONFIG_BATMAN_ADV_DEBUG
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2012-06-04 04:19:07 +08:00
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#define BATADV_LOG_BUFF_MASK (batadv_log_buff_len - 1)
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#define BATADV_LOG_BUFF(idx) (debug_log->log_buff[(idx) & BATADV_LOG_BUFF_MASK])
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2010-12-13 19:19:28 +08:00
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2012-06-04 04:19:17 +08:00
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static int batadv_log_buff_len = BATADV_LOG_BUF_LEN;
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2010-12-13 19:19:28 +08:00
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2012-05-13 00:33:50 +08:00
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static void batadv_emit_log_char(struct debug_log *debug_log, char c)
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2010-12-13 19:19:28 +08:00
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{
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2012-06-04 04:19:07 +08:00
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BATADV_LOG_BUFF(debug_log->log_end) = c;
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2010-12-13 19:19:28 +08:00
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debug_log->log_end++;
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2012-05-13 00:33:50 +08:00
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if (debug_log->log_end - debug_log->log_start > batadv_log_buff_len)
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debug_log->log_start = debug_log->log_end - batadv_log_buff_len;
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2010-12-13 19:19:28 +08:00
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}
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2011-05-15 05:14:46 +08:00
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__printf(2, 3)
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2012-05-13 00:33:50 +08:00
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static int batadv_fdebug_log(struct debug_log *debug_log, const char *fmt, ...)
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2010-12-13 19:19:28 +08:00
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{
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va_list args;
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static char debug_log_buf[256];
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char *p;
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if (!debug_log)
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return 0;
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spin_lock_bh(&debug_log->lock);
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va_start(args, fmt);
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2011-01-27 20:48:54 +08:00
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vscnprintf(debug_log_buf, sizeof(debug_log_buf), fmt, args);
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2010-12-13 19:19:28 +08:00
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va_end(args);
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for (p = debug_log_buf; *p != 0; p++)
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2012-05-13 00:33:50 +08:00
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batadv_emit_log_char(debug_log, *p);
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2010-12-13 19:19:28 +08:00
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spin_unlock_bh(&debug_log->lock);
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wake_up(&debug_log->queue_wait);
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return 0;
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}
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2012-05-12 08:09:23 +08:00
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int batadv_debug_log(struct bat_priv *bat_priv, const char *fmt, ...)
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2010-12-13 19:19:28 +08:00
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{
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va_list args;
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char tmp_log_buf[256];
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va_start(args, fmt);
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vscnprintf(tmp_log_buf, sizeof(tmp_log_buf), fmt, args);
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2012-05-13 00:33:50 +08:00
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batadv_fdebug_log(bat_priv->debug_log, "[%10u] %s",
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jiffies_to_msecs(jiffies), tmp_log_buf);
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2010-12-13 19:19:28 +08:00
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va_end(args);
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return 0;
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}
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2012-05-13 00:33:50 +08:00
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static int batadv_log_open(struct inode *inode, struct file *file)
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2010-12-13 19:19:28 +08:00
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{
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nonseekable_open(inode, file);
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file->private_data = inode->i_private;
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2012-05-12 08:09:42 +08:00
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batadv_inc_module_count();
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2010-12-13 19:19:28 +08:00
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return 0;
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}
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2012-05-13 00:33:50 +08:00
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static int batadv_log_release(struct inode *inode, struct file *file)
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2010-12-13 19:19:28 +08:00
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{
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2012-05-12 08:09:42 +08:00
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batadv_dec_module_count();
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2010-12-13 19:19:28 +08:00
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return 0;
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}
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2012-05-13 00:33:50 +08:00
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static ssize_t batadv_log_read(struct file *file, char __user *buf,
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size_t count, loff_t *ppos)
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2010-12-13 19:19:28 +08:00
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{
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struct bat_priv *bat_priv = file->private_data;
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struct debug_log *debug_log = bat_priv->debug_log;
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int error, i = 0;
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char c;
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if ((file->f_flags & O_NONBLOCK) &&
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!(debug_log->log_end - debug_log->log_start))
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return -EAGAIN;
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2011-05-15 05:14:48 +08:00
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if (!buf)
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2010-12-13 19:19:28 +08:00
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return -EINVAL;
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if (count == 0)
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return 0;
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if (!access_ok(VERIFY_WRITE, buf, count))
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return -EFAULT;
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error = wait_event_interruptible(debug_log->queue_wait,
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(debug_log->log_start - debug_log->log_end));
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if (error)
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return error;
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spin_lock_bh(&debug_log->lock);
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while ((!error) && (i < count) &&
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(debug_log->log_start != debug_log->log_end)) {
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2012-06-04 04:19:07 +08:00
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c = BATADV_LOG_BUFF(debug_log->log_start);
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2010-12-13 19:19:28 +08:00
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debug_log->log_start++;
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spin_unlock_bh(&debug_log->lock);
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error = __put_user(c, buf);
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spin_lock_bh(&debug_log->lock);
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buf++;
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i++;
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}
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spin_unlock_bh(&debug_log->lock);
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if (!error)
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return i;
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return error;
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}
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2012-05-13 00:33:50 +08:00
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static unsigned int batadv_log_poll(struct file *file, poll_table *wait)
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2010-12-13 19:19:28 +08:00
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{
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struct bat_priv *bat_priv = file->private_data;
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struct debug_log *debug_log = bat_priv->debug_log;
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poll_wait(file, &debug_log->queue_wait, wait);
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if (debug_log->log_end - debug_log->log_start)
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return POLLIN | POLLRDNORM;
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return 0;
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}
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2012-05-13 00:33:50 +08:00
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static const struct file_operations batadv_log_fops = {
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.open = batadv_log_open,
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.release = batadv_log_release,
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.read = batadv_log_read,
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.poll = batadv_log_poll,
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2010-12-13 19:19:28 +08:00
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.llseek = no_llseek,
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};
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2012-05-13 00:33:50 +08:00
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static int batadv_debug_log_setup(struct bat_priv *bat_priv)
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2010-12-13 19:19:28 +08:00
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{
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struct dentry *d;
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if (!bat_priv->debug_dir)
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goto err;
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2011-05-15 05:14:54 +08:00
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bat_priv->debug_log = kzalloc(sizeof(*bat_priv->debug_log), GFP_ATOMIC);
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2010-12-13 19:19:28 +08:00
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if (!bat_priv->debug_log)
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goto err;
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spin_lock_init(&bat_priv->debug_log->lock);
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init_waitqueue_head(&bat_priv->debug_log->queue_wait);
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d = debugfs_create_file("log", S_IFREG | S_IRUSR,
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2012-05-13 00:33:50 +08:00
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bat_priv->debug_dir, bat_priv,
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&batadv_log_fops);
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2012-05-05 19:27:28 +08:00
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if (!d)
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2010-12-13 19:19:28 +08:00
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goto err;
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return 0;
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err:
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2012-05-05 19:27:28 +08:00
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return -ENOMEM;
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2010-12-13 19:19:28 +08:00
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}
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2012-05-13 00:33:50 +08:00
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static void batadv_debug_log_cleanup(struct bat_priv *bat_priv)
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2010-12-13 19:19:28 +08:00
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{
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kfree(bat_priv->debug_log);
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bat_priv->debug_log = NULL;
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}
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#else /* CONFIG_BATMAN_ADV_DEBUG */
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2012-05-13 00:33:50 +08:00
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static int batadv_debug_log_setup(struct bat_priv *bat_priv)
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2010-12-13 19:19:28 +08:00
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{
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bat_priv->debug_log = NULL;
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return 0;
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}
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2012-05-13 00:33:50 +08:00
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static void batadv_debug_log_cleanup(struct bat_priv *bat_priv)
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2010-12-13 19:19:28 +08:00
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{
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return;
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}
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#endif
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2012-05-13 00:33:50 +08:00
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static int batadv_algorithms_open(struct inode *inode, struct file *file)
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2011-11-28 17:40:17 +08:00
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{
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2012-05-12 08:09:42 +08:00
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return single_open(file, batadv_algo_seq_print_text, NULL);
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2011-11-28 17:40:17 +08:00
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}
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2012-05-13 00:33:50 +08:00
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static int batadv_originators_open(struct inode *inode, struct file *file)
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2010-12-13 19:19:28 +08:00
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{
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struct net_device *net_dev = (struct net_device *)inode->i_private;
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2012-05-12 08:09:34 +08:00
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return single_open(file, batadv_orig_seq_print_text, net_dev);
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2010-12-13 19:19:28 +08:00
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}
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2012-05-13 00:33:50 +08:00
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static int batadv_gateways_open(struct inode *inode, struct file *file)
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2010-12-13 19:19:28 +08:00
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{
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struct net_device *net_dev = (struct net_device *)inode->i_private;
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2012-05-12 08:09:29 +08:00
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return single_open(file, batadv_gw_client_seq_print_text, net_dev);
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2010-12-13 19:19:28 +08:00
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}
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2012-05-13 00:33:50 +08:00
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static int batadv_transtable_global_open(struct inode *inode, struct file *file)
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2010-12-13 19:19:28 +08:00
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{
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struct net_device *net_dev = (struct net_device *)inode->i_private;
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2012-05-12 08:09:39 +08:00
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return single_open(file, batadv_tt_global_seq_print_text, net_dev);
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2010-12-13 19:19:28 +08:00
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}
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2012-01-23 03:00:27 +08:00
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#ifdef CONFIG_BATMAN_ADV_BLA
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2012-05-13 00:33:50 +08:00
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static int batadv_bla_claim_table_open(struct inode *inode, struct file *file)
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2012-01-23 03:00:21 +08:00
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{
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struct net_device *net_dev = (struct net_device *)inode->i_private;
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2012-05-12 19:38:47 +08:00
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return single_open(file, batadv_bla_claim_table_seq_print_text,
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net_dev);
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2012-01-23 03:00:21 +08:00
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}
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2012-01-23 03:00:27 +08:00
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#endif
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2012-01-23 03:00:21 +08:00
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2012-05-13 00:33:50 +08:00
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static int batadv_transtable_local_open(struct inode *inode, struct file *file)
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2010-12-13 19:19:28 +08:00
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{
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struct net_device *net_dev = (struct net_device *)inode->i_private;
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2012-05-12 08:09:39 +08:00
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return single_open(file, batadv_tt_local_seq_print_text, net_dev);
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2010-12-13 19:19:28 +08:00
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}
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2012-05-13 00:33:50 +08:00
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static int batadv_vis_data_open(struct inode *inode, struct file *file)
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2010-12-13 19:19:28 +08:00
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{
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struct net_device *net_dev = (struct net_device *)inode->i_private;
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2012-05-12 08:09:41 +08:00
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return single_open(file, batadv_vis_seq_print_text, net_dev);
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2010-12-13 19:19:28 +08:00
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}
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struct bat_debuginfo {
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struct attribute attr;
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const struct file_operations fops;
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};
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2012-06-04 04:19:07 +08:00
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#define BATADV_DEBUGINFO(_name, _mode, _open) \
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2012-05-13 00:33:50 +08:00
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struct bat_debuginfo batadv_debuginfo_##_name = { \
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.attr = { .name = __stringify(_name), \
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.mode = _mode, }, \
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.fops = { .owner = THIS_MODULE, \
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.open = _open, \
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.read = seq_read, \
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.llseek = seq_lseek, \
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.release = single_release, \
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} \
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2010-12-13 19:19:28 +08:00
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};
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2012-06-04 04:19:07 +08:00
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static BATADV_DEBUGINFO(routing_algos, S_IRUGO, batadv_algorithms_open);
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static BATADV_DEBUGINFO(originators, S_IRUGO, batadv_originators_open);
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static BATADV_DEBUGINFO(gateways, S_IRUGO, batadv_gateways_open);
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static BATADV_DEBUGINFO(transtable_global, S_IRUGO,
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batadv_transtable_global_open);
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2012-01-23 03:00:27 +08:00
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#ifdef CONFIG_BATMAN_ADV_BLA
|
2012-06-04 04:19:07 +08:00
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static BATADV_DEBUGINFO(bla_claim_table, S_IRUGO, batadv_bla_claim_table_open);
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2012-01-23 03:00:27 +08:00
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#endif
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2012-06-04 04:19:07 +08:00
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static BATADV_DEBUGINFO(transtable_local, S_IRUGO,
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batadv_transtable_local_open);
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static BATADV_DEBUGINFO(vis_data, S_IRUGO, batadv_vis_data_open);
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2010-12-13 19:19:28 +08:00
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2012-05-13 00:33:50 +08:00
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static struct bat_debuginfo *batadv_mesh_debuginfos[] = {
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&batadv_debuginfo_originators,
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&batadv_debuginfo_gateways,
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|
|
&batadv_debuginfo_transtable_global,
|
2012-01-23 03:00:27 +08:00
|
|
|
#ifdef CONFIG_BATMAN_ADV_BLA
|
2012-05-13 00:33:50 +08:00
|
|
|
&batadv_debuginfo_bla_claim_table,
|
2012-01-23 03:00:27 +08:00
|
|
|
#endif
|
2012-05-13 00:33:50 +08:00
|
|
|
&batadv_debuginfo_transtable_local,
|
|
|
|
&batadv_debuginfo_vis_data,
|
2010-12-13 19:19:28 +08:00
|
|
|
NULL,
|
|
|
|
};
|
|
|
|
|
2012-05-12 08:09:23 +08:00
|
|
|
void batadv_debugfs_init(void)
|
2010-12-13 19:19:28 +08:00
|
|
|
{
|
2011-11-28 17:40:17 +08:00
|
|
|
struct bat_debuginfo *bat_debug;
|
|
|
|
struct dentry *file;
|
|
|
|
|
2012-06-04 04:19:08 +08:00
|
|
|
batadv_debugfs = debugfs_create_dir(BATADV_DEBUGFS_SUBDIR, NULL);
|
2012-05-13 00:33:50 +08:00
|
|
|
if (batadv_debugfs == ERR_PTR(-ENODEV))
|
|
|
|
batadv_debugfs = NULL;
|
2011-11-28 17:40:17 +08:00
|
|
|
|
2012-05-13 00:33:50 +08:00
|
|
|
if (!batadv_debugfs)
|
2011-11-28 17:40:17 +08:00
|
|
|
goto out;
|
|
|
|
|
2012-05-13 00:33:50 +08:00
|
|
|
bat_debug = &batadv_debuginfo_routing_algos;
|
2011-11-28 17:40:17 +08:00
|
|
|
file = debugfs_create_file(bat_debug->attr.name,
|
|
|
|
S_IFREG | bat_debug->attr.mode,
|
2012-05-13 00:33:50 +08:00
|
|
|
batadv_debugfs, NULL, &bat_debug->fops);
|
2011-11-28 17:40:17 +08:00
|
|
|
if (!file)
|
|
|
|
pr_err("Can't add debugfs file: %s\n", bat_debug->attr.name);
|
|
|
|
|
|
|
|
out:
|
|
|
|
return;
|
2010-12-13 19:19:28 +08:00
|
|
|
}
|
|
|
|
|
2012-05-12 08:09:23 +08:00
|
|
|
void batadv_debugfs_destroy(void)
|
2010-12-13 19:19:28 +08:00
|
|
|
{
|
2012-05-13 00:33:50 +08:00
|
|
|
if (batadv_debugfs) {
|
|
|
|
debugfs_remove_recursive(batadv_debugfs);
|
|
|
|
batadv_debugfs = NULL;
|
2010-12-13 19:19:28 +08:00
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2012-05-12 08:09:23 +08:00
|
|
|
int batadv_debugfs_add_meshif(struct net_device *dev)
|
2010-12-13 19:19:28 +08:00
|
|
|
{
|
|
|
|
struct bat_priv *bat_priv = netdev_priv(dev);
|
|
|
|
struct bat_debuginfo **bat_debug;
|
|
|
|
struct dentry *file;
|
|
|
|
|
2012-05-13 00:33:50 +08:00
|
|
|
if (!batadv_debugfs)
|
2010-12-13 19:19:28 +08:00
|
|
|
goto out;
|
|
|
|
|
2012-05-13 00:33:50 +08:00
|
|
|
bat_priv->debug_dir = debugfs_create_dir(dev->name, batadv_debugfs);
|
2010-12-13 19:19:28 +08:00
|
|
|
if (!bat_priv->debug_dir)
|
|
|
|
goto out;
|
|
|
|
|
2012-05-12 08:09:33 +08:00
|
|
|
if (batadv_socket_setup(bat_priv) < 0)
|
2012-05-05 19:27:28 +08:00
|
|
|
goto rem_attr;
|
|
|
|
|
2012-05-13 00:33:50 +08:00
|
|
|
if (batadv_debug_log_setup(bat_priv) < 0)
|
2012-05-05 19:27:28 +08:00
|
|
|
goto rem_attr;
|
2010-12-13 19:19:28 +08:00
|
|
|
|
2012-05-13 00:33:50 +08:00
|
|
|
for (bat_debug = batadv_mesh_debuginfos; *bat_debug; ++bat_debug) {
|
2010-12-13 19:19:28 +08:00
|
|
|
file = debugfs_create_file(((*bat_debug)->attr).name,
|
|
|
|
S_IFREG | ((*bat_debug)->attr).mode,
|
|
|
|
bat_priv->debug_dir,
|
|
|
|
dev, &(*bat_debug)->fops);
|
|
|
|
if (!file) {
|
2012-05-17 02:23:22 +08:00
|
|
|
batadv_err(dev, "Can't add debugfs file: %s/%s\n",
|
|
|
|
dev->name, ((*bat_debug)->attr).name);
|
2010-12-13 19:19:28 +08:00
|
|
|
goto rem_attr;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
rem_attr:
|
|
|
|
debugfs_remove_recursive(bat_priv->debug_dir);
|
|
|
|
bat_priv->debug_dir = NULL;
|
|
|
|
out:
|
|
|
|
#ifdef CONFIG_DEBUG_FS
|
|
|
|
return -ENOMEM;
|
|
|
|
#else
|
|
|
|
return 0;
|
|
|
|
#endif /* CONFIG_DEBUG_FS */
|
|
|
|
}
|
|
|
|
|
2012-05-12 08:09:23 +08:00
|
|
|
void batadv_debugfs_del_meshif(struct net_device *dev)
|
2010-12-13 19:19:28 +08:00
|
|
|
{
|
|
|
|
struct bat_priv *bat_priv = netdev_priv(dev);
|
|
|
|
|
2012-05-13 00:33:50 +08:00
|
|
|
batadv_debug_log_cleanup(bat_priv);
|
2010-12-13 19:19:28 +08:00
|
|
|
|
2012-05-13 00:33:50 +08:00
|
|
|
if (batadv_debugfs) {
|
2010-12-13 19:19:28 +08:00
|
|
|
debugfs_remove_recursive(bat_priv->debug_dir);
|
|
|
|
bat_priv->debug_dir = NULL;
|
|
|
|
}
|
|
|
|
}
|