drivers/staging/batman-adv/bat_sysfs.c - kernel/msm-4.9 - Gitiles

 /*
  * Copyright (C) 2010 B.A.T.M.A.N. contributors:
  *
  * Marek Lindner
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of version 2 of the GNU General Public
  * License as published by the Free Software Foundation.
  *
  * This program is distributed in the hope that it will be useful, but
  * WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  * General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License
  * along with this program; if not, write to the Free Software
  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  * 02110-1301, USA
  *
  */

 #include "main.h"
 #include "bat_sysfs.h"
 #include "translation-table.h"
 #include "originator.h"
 #include "hard-interface.h"
 #include "vis.h"

 #define to_dev(obj)     container_of(obj, struct device, kobj)

 struct bat_attribute {
 	struct attribute attr;
 	ssize_t (*show)(struct kobject *kobj, struct attribute *attr,
 			char *buf);
 	ssize_t (*store)(struct kobject *kobj, struct attribute *attr,
 			 char *buf, size_t count);
 };

 #define BAT_ATTR(_name, _mode, _show, _store)	\
 struct bat_attribute bat_attr_##_name = {	\
 	.attr = {.name = __stringify(_name),	\
 		 .mode = _mode },		\
 	.show   = _show,			\
 	.store  = _store,			\
 };

 #define BAT_BIN_ATTR(_name, _mode, _read, _write)	\
 struct bin_attribute bat_attr_##_name = {		\
 	.attr = { .name = __stringify(_name),		\
 		  .mode = _mode, },			\
 	.read = _read,					\
 	.write = _write,				\
 };

 static ssize_t show_aggr_ogm(struct kobject *kobj, struct attribute *attr,
 			     char *buff)
 {
 	struct device *dev = to_dev(kobj->parent);
 	struct bat_priv *bat_priv = netdev_priv(to_net_dev(dev));
 	int aggr_status = atomic_read(&bat_priv->aggregation_enabled);

 	return sprintf(buff, "status: %s\ncommands: enable, disable, 0, 1 \n",
 		       aggr_status == 0 ? "disabled" : "enabled");
 }

 static ssize_t store_aggr_ogm(struct kobject *kobj, struct attribute *attr,
 			      char *buff, size_t count)
 {
 	struct device *dev = to_dev(kobj->parent);
 	struct net_device *net_dev = to_net_dev(dev);
 	struct bat_priv *bat_priv = netdev_priv(net_dev);
 	int aggr_tmp = -1;

 	if (((count == 2) && (buff[0] == '1')) ||
 	    (strncmp(buff, "enable", 6) == 0))
 		aggr_tmp = 1;

 	if (((count == 2) && (buff[0] == '0')) ||
 	    (strncmp(buff, "disable", 7) == 0))
 		aggr_tmp = 0;

 	if (aggr_tmp < 0) {
 		if (buff[count - 1] == '\n')
 			buff[count - 1] = '\0';

 		printk(KERN_INFO "batman-adv:Invalid parameter for 'aggregate OGM' setting on mesh %s received: %s\n",
 		       net_dev->name, buff);
 		return -EINVAL;
 	}

 	if (atomic_read(&bat_priv->aggregation_enabled) == aggr_tmp)
 		return count;

 	printk(KERN_INFO "batman-adv:Changing aggregation from: %s to: %s on mesh: %s\n",
 	       atomic_read(&bat_priv->aggregation_enabled) == 1 ?
 	       "enabled" : "disabled", aggr_tmp == 1 ? "enabled" : "disabled",
 	       net_dev->name);

 	atomic_set(&bat_priv->aggregation_enabled, (unsigned)aggr_tmp);
 	return count;
 }

 static ssize_t show_vis_mode(struct kobject *kobj, struct attribute *attr,
 			     char *buff)
 {
 	struct device *dev = to_dev(kobj->parent);
 	struct bat_priv *bat_priv = netdev_priv(to_net_dev(dev));
 	int vis_mode = atomic_read(&bat_priv->vis_mode);

 	return sprintf(buff, "status: %s\ncommands: client, server, %d, %d \n",
 		       vis_mode == VIS_TYPE_CLIENT_UPDATE ?
 							"client" : "server",
 		       VIS_TYPE_SERVER_SYNC, VIS_TYPE_CLIENT_UPDATE);
 }

 static ssize_t store_vis_mode(struct kobject *kobj, struct attribute *attr,
 			      char *buff, size_t count)
 {
 	struct device *dev = to_dev(kobj->parent);
 	struct net_device *net_dev = to_net_dev(dev);
 	struct bat_priv *bat_priv = netdev_priv(net_dev);
 	unsigned long val;
 	int ret, vis_mode_tmp = -1;

 	ret = strict_strtoul(buff, 10, &val);

 	if (((count == 2) && (!ret) && (val == VIS_TYPE_CLIENT_UPDATE)) ||
 	    (strncmp(buff, "client", 6) == 0))
 		vis_mode_tmp = VIS_TYPE_CLIENT_UPDATE;

 	if (((count == 2) && (!ret) && (val == VIS_TYPE_SERVER_SYNC)) ||
 	    (strncmp(buff, "server", 6) == 0))
 		vis_mode_tmp = VIS_TYPE_SERVER_SYNC;

 	if (vis_mode_tmp < 0) {
 		if (buff[count - 1] == '\n')
 			buff[count - 1] = '\0';

 		printk(KERN_INFO "batman-adv:Invalid parameter for 'vis mode' setting on mesh %s received: %s\n",
 		       net_dev->name, buff);
 		return -EINVAL;
 	}

 	if (atomic_read(&bat_priv->vis_mode) == vis_mode_tmp)
 		return count;

 	printk(KERN_INFO "batman-adv:Changing vis mode from: %s to: %s on mesh: %s\n",
 	       atomic_read(&bat_priv->vis_mode) == VIS_TYPE_CLIENT_UPDATE ?
 	       "client" : "server", vis_mode_tmp == VIS_TYPE_CLIENT_UPDATE ?
 	       "client" : "server", net_dev->name);

 	atomic_set(&bat_priv->vis_mode, (unsigned)vis_mode_tmp);
 	return count;
 }

 static BAT_ATTR(aggregate_ogm, S_IRUGO | S_IWUSR,
 		show_aggr_ogm, store_aggr_ogm);
 static BAT_ATTR(vis_mode, S_IRUGO | S_IWUSR, show_vis_mode, store_vis_mode);

 static struct bat_attribute *mesh_attrs[] = {
 	&bat_attr_aggregate_ogm,
 	&bat_attr_vis_mode,
 	NULL,
 };

 static ssize_t transtable_local_read(struct kobject *kobj,
 			       struct bin_attribute *bin_attr,
 			       char *buff, loff_t off, size_t count)
 {
 	struct device *dev = to_dev(kobj->parent);
 	struct net_device *net_dev = to_net_dev(dev);

 	return hna_local_fill_buffer_text(net_dev, buff, count, off);
 }

 static ssize_t transtable_global_read(struct kobject *kobj,
 			       struct bin_attribute *bin_attr,
 			       char *buff, loff_t off, size_t count)
 {
 	struct device *dev = to_dev(kobj->parent);
 	struct net_device *net_dev = to_net_dev(dev);

 	return hna_global_fill_buffer_text(net_dev, buff, count, off);
 }

 static ssize_t originators_read(struct kobject *kobj,
 			       struct bin_attribute *bin_attr,
 			       char *buff, loff_t off, size_t count)
 {
 	struct device *dev = to_dev(kobj->parent);
 	struct net_device *net_dev = to_net_dev(dev);

 	return orig_fill_buffer_text(net_dev, buff, count, off);
 }

 static ssize_t vis_data_read(struct kobject *kobj,
 			     struct bin_attribute *bin_attr,
 			     char *buff, loff_t off, size_t count)
 {
 	struct device *dev = to_dev(kobj->parent);
 	struct net_device *net_dev = to_net_dev(dev);

 	return vis_fill_buffer_text(net_dev, buff, count, off);
 }

 static BAT_BIN_ATTR(transtable_local, S_IRUGO, transtable_local_read, NULL);
 static BAT_BIN_ATTR(transtable_global, S_IRUGO, transtable_global_read, NULL);
 static BAT_BIN_ATTR(originators, S_IRUGO, originators_read, NULL);
 static BAT_BIN_ATTR(vis_data, S_IRUGO, vis_data_read, NULL);

 static struct bin_attribute *mesh_bin_attrs[] = {
 	&bat_attr_transtable_local,
 	&bat_attr_transtable_global,
 	&bat_attr_originators,
 	&bat_attr_vis_data,
 	NULL,
 };

 int sysfs_add_meshif(struct net_device *dev)
 {
 	struct kobject *batif_kobject = &dev->dev.kobj;
 	struct bat_priv *bat_priv = netdev_priv(dev);
 	struct bat_attribute **bat_attr;
 	struct bin_attribute **bin_attr;
 	int err;

 	/* FIXME: should be done in the general mesh setup
 		  routine as soon as we have it */
 	atomic_set(&bat_priv->aggregation_enabled, 1);
 	atomic_set(&bat_priv->vis_mode, VIS_TYPE_CLIENT_UPDATE);

 	bat_priv->mesh_obj = kobject_create_and_add(SYSFS_IF_MESH_SUBDIR,
 						    batif_kobject);
 	if (!bat_priv->mesh_obj) {
 		printk(KERN_ERR "batman-adv:Can't add sysfs directory: %s/%s\n",
 		       dev->name, SYSFS_IF_MESH_SUBDIR);
 		goto out;
 	}

 	for (bat_attr = mesh_attrs; *bat_attr; ++bat_attr) {
 		err = sysfs_create_file(bat_priv->mesh_obj,
 					&((*bat_attr)->attr));
 		if (err) {
 			printk(KERN_ERR "batman-adv:Can't add sysfs file: %s/%s/%s\n",
 			       dev->name, SYSFS_IF_MESH_SUBDIR,
 			       ((*bat_attr)->attr).name);
 			goto rem_attr;
 		}
 	}

 	for (bin_attr = mesh_bin_attrs; *bin_attr; ++bin_attr) {
 		err = sysfs_create_bin_file(bat_priv->mesh_obj, (*bin_attr));
 		if (err) {
 			printk(KERN_ERR "batman-adv:Can't add sysfs file: %s/%s/%s\n",
 			       dev->name, SYSFS_IF_MESH_SUBDIR,
 			       ((*bin_attr)->attr).name);
 			goto rem_bin_attr;
 		}
 	}

 	return 0;

 rem_bin_attr:
 	for (bin_attr = mesh_bin_attrs; *bin_attr; ++bin_attr)
 		sysfs_remove_bin_file(bat_priv->mesh_obj, (*bin_attr));
 rem_attr:
 	for (bat_attr = mesh_attrs; *bat_attr; ++bat_attr)
 		sysfs_remove_file(bat_priv->mesh_obj, &((*bat_attr)->attr));

 	kobject_put(bat_priv->mesh_obj);
 	bat_priv->mesh_obj = NULL;
 out:
 	return -ENOMEM;
 }

 void sysfs_del_meshif(struct net_device *dev)
 {
 	struct bat_priv *bat_priv = netdev_priv(dev);
 	struct bat_attribute **bat_attr;
 	struct bin_attribute **bin_attr;

 	for (bin_attr = mesh_bin_attrs; *bin_attr; ++bin_attr)
 		sysfs_remove_bin_file(bat_priv->mesh_obj, (*bin_attr));

 	for (bat_attr = mesh_attrs; *bat_attr; ++bat_attr)
 		sysfs_remove_file(bat_priv->mesh_obj, &((*bat_attr)->attr));

 	kobject_put(bat_priv->mesh_obj);
 	bat_priv->mesh_obj = NULL;
 }
	/*
	* Copyright (C) 2010 B.A.T.M.A.N. contributors:
	*
	* Marek Lindner
	*
	* This program is free software; you can redistribute it and/or
	* modify it under the terms of version 2 of the GNU General Public
	* License as published by the Free Software Foundation.
	*
	* This program is distributed in the hope that it will be useful, but
	* WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	* General Public License for more details.
	*
	* You should have received a copy of the GNU General Public License
	* along with this program; if not, write to the Free Software
	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
	* 02110-1301, USA
	*
	*/

	#include "main.h"
	#include "bat_sysfs.h"
	#include "translation-table.h"
	#include "originator.h"
	#include "hard-interface.h"
	#include "vis.h"

	#define to_dev(obj) container_of(obj, struct device, kobj)

	struct bat_attribute {
	struct attribute attr;
	ssize_t (show)(struct kobject kobj, struct attribute *attr,
	char *buf);
	ssize_t (store)(struct kobject kobj, struct attribute *attr,
	char *buf, size_t count);
	};

	#define BAT_ATTR(_name, _mode, _show, _store) \
	struct bat_attribute bat_attr_##_name = { \
	.attr = {.name = __stringify(_name), \
	.mode = _mode }, \
	.show = _show, \
	.store = _store, \
	};

	#define BAT_BIN_ATTR(_name, _mode, _read, _write) \
	struct bin_attribute bat_attr_##_name = { \
	.attr = { .name = __stringify(_name), \
	.mode = _mode, }, \
	.read = _read, \
	.write = _write, \
	};

	static ssize_t show_aggr_ogm(struct kobject kobj, struct attribute attr,
	char *buff)
	{
	struct device *dev = to_dev(kobj->parent);
	struct bat_priv *bat_priv = netdev_priv(to_net_dev(dev));
	int aggr_status = atomic_read(&bat_priv->aggregation_enabled);

	return sprintf(buff, "status: %s\ncommands: enable, disable, 0, 1 \n",
	aggr_status == 0 ? "disabled" : "enabled");
	}

	static ssize_t store_aggr_ogm(struct kobject kobj, struct attribute attr,
	char *buff, size_t count)
	{
	struct device *dev = to_dev(kobj->parent);
	struct net_device *net_dev = to_net_dev(dev);
	struct bat_priv *bat_priv = netdev_priv(net_dev);
	int aggr_tmp = -1;

	if (((count == 2) && (buff[0] == '1')) \|\|
	(strncmp(buff, "enable", 6) == 0))
	aggr_tmp = 1;

	if (((count == 2) && (buff[0] == '0')) \|\|
	(strncmp(buff, "disable", 7) == 0))
	aggr_tmp = 0;

	if (aggr_tmp < 0) {
	if (buff[count - 1] == '\n')
	buff[count - 1] = '\0';

	printk(KERN_INFO "batman-adv:Invalid parameter for 'aggregate OGM' setting on mesh %s received: %s\n",
	net_dev->name, buff);
	return -EINVAL;
	}

	if (atomic_read(&bat_priv->aggregation_enabled) == aggr_tmp)
	return count;

	printk(KERN_INFO "batman-adv:Changing aggregation from: %s to: %s on mesh: %s\n",
	atomic_read(&bat_priv->aggregation_enabled) == 1 ?
	"enabled" : "disabled", aggr_tmp == 1 ? "enabled" : "disabled",
	net_dev->name);

	atomic_set(&bat_priv->aggregation_enabled, (unsigned)aggr_tmp);
	return count;
	}

	static ssize_t show_vis_mode(struct kobject kobj, struct attribute attr,
	char *buff)
	{
	struct device *dev = to_dev(kobj->parent);
	struct bat_priv *bat_priv = netdev_priv(to_net_dev(dev));
	int vis_mode = atomic_read(&bat_priv->vis_mode);

	return sprintf(buff, "status: %s\ncommands: client, server, %d, %d \n",
	vis_mode == VIS_TYPE_CLIENT_UPDATE ?
	"client" : "server",
	VIS_TYPE_SERVER_SYNC, VIS_TYPE_CLIENT_UPDATE);
	}

	static ssize_t store_vis_mode(struct kobject kobj, struct attribute attr,
	char *buff, size_t count)
	{
	struct device *dev = to_dev(kobj->parent);
	struct net_device *net_dev = to_net_dev(dev);
	struct bat_priv *bat_priv = netdev_priv(net_dev);
	unsigned long val;
	int ret, vis_mode_tmp = -1;

	ret = strict_strtoul(buff, 10, &val);

	if (((count == 2) && (!ret) && (val == VIS_TYPE_CLIENT_UPDATE)) \|\|
	(strncmp(buff, "client", 6) == 0))
	vis_mode_tmp = VIS_TYPE_CLIENT_UPDATE;

	if (((count == 2) && (!ret) && (val == VIS_TYPE_SERVER_SYNC)) \|\|
	(strncmp(buff, "server", 6) == 0))
	vis_mode_tmp = VIS_TYPE_SERVER_SYNC;

	if (vis_mode_tmp < 0) {
	if (buff[count - 1] == '\n')
	buff[count - 1] = '\0';

	printk(KERN_INFO "batman-adv:Invalid parameter for 'vis mode' setting on mesh %s received: %s\n",
	net_dev->name, buff);
	return -EINVAL;
	}

	if (atomic_read(&bat_priv->vis_mode) == vis_mode_tmp)
	return count;

	printk(KERN_INFO "batman-adv:Changing vis mode from: %s to: %s on mesh: %s\n",
	atomic_read(&bat_priv->vis_mode) == VIS_TYPE_CLIENT_UPDATE ?
	"client" : "server", vis_mode_tmp == VIS_TYPE_CLIENT_UPDATE ?
	"client" : "server", net_dev->name);

	atomic_set(&bat_priv->vis_mode, (unsigned)vis_mode_tmp);
	return count;
	}

	static BAT_ATTR(aggregate_ogm, S_IRUGO \| S_IWUSR,
	show_aggr_ogm, store_aggr_ogm);
	static BAT_ATTR(vis_mode, S_IRUGO \| S_IWUSR, show_vis_mode, store_vis_mode);

	static struct bat_attribute *mesh_attrs[] = {
	&bat_attr_aggregate_ogm,
	&bat_attr_vis_mode,
	NULL,
	};

	static ssize_t transtable_local_read(struct kobject *kobj,
	struct bin_attribute *bin_attr,
	char *buff, loff_t off, size_t count)
	{
	struct device *dev = to_dev(kobj->parent);
	struct net_device *net_dev = to_net_dev(dev);

	return hna_local_fill_buffer_text(net_dev, buff, count, off);
	}

	static ssize_t transtable_global_read(struct kobject *kobj,
	struct bin_attribute *bin_attr,
	char *buff, loff_t off, size_t count)
	{
	struct device *dev = to_dev(kobj->parent);
	struct net_device *net_dev = to_net_dev(dev);

	return hna_global_fill_buffer_text(net_dev, buff, count, off);
	}

	static ssize_t originators_read(struct kobject *kobj,
	struct bin_attribute *bin_attr,
	char *buff, loff_t off, size_t count)
	{
	struct device *dev = to_dev(kobj->parent);
	struct net_device *net_dev = to_net_dev(dev);

	return orig_fill_buffer_text(net_dev, buff, count, off);
	}

	static ssize_t vis_data_read(struct kobject *kobj,
	struct bin_attribute *bin_attr,
	char *buff, loff_t off, size_t count)
	{
	struct device *dev = to_dev(kobj->parent);
	struct net_device *net_dev = to_net_dev(dev);

	return vis_fill_buffer_text(net_dev, buff, count, off);
	}

	static BAT_BIN_ATTR(transtable_local, S_IRUGO, transtable_local_read, NULL);
	static BAT_BIN_ATTR(transtable_global, S_IRUGO, transtable_global_read, NULL);
	static BAT_BIN_ATTR(originators, S_IRUGO, originators_read, NULL);
	static BAT_BIN_ATTR(vis_data, S_IRUGO, vis_data_read, NULL);

	static struct bin_attribute *mesh_bin_attrs[] = {
	&bat_attr_transtable_local,
	&bat_attr_transtable_global,
	&bat_attr_originators,
	&bat_attr_vis_data,
	NULL,
	};

	int sysfs_add_meshif(struct net_device *dev)
	{
	struct kobject *batif_kobject = &dev->dev.kobj;
	struct bat_priv *bat_priv = netdev_priv(dev);
	struct bat_attribute **bat_attr;
	struct bin_attribute **bin_attr;
	int err;

	/* FIXME: should be done in the general mesh setup
	routine as soon as we have it */
	atomic_set(&bat_priv->aggregation_enabled, 1);
	atomic_set(&bat_priv->vis_mode, VIS_TYPE_CLIENT_UPDATE);

	bat_priv->mesh_obj = kobject_create_and_add(SYSFS_IF_MESH_SUBDIR,
	batif_kobject);
	if (!bat_priv->mesh_obj) {
	printk(KERN_ERR "batman-adv:Can't add sysfs directory: %s/%s\n",
	dev->name, SYSFS_IF_MESH_SUBDIR);
	goto out;
	}

	for (bat_attr = mesh_attrs; *bat_attr; ++bat_attr) {
	err = sysfs_create_file(bat_priv->mesh_obj,
	&((*bat_attr)->attr));
	if (err) {
	printk(KERN_ERR "batman-adv:Can't add sysfs file: %s/%s/%s\n",
	dev->name, SYSFS_IF_MESH_SUBDIR,
	((*bat_attr)->attr).name);
	goto rem_attr;
	}
	}

	for (bin_attr = mesh_bin_attrs; *bin_attr; ++bin_attr) {
	err = sysfs_create_bin_file(bat_priv->mesh_obj, (*bin_attr));
	if (err) {
	printk(KERN_ERR "batman-adv:Can't add sysfs file: %s/%s/%s\n",
	dev->name, SYSFS_IF_MESH_SUBDIR,
	((*bin_attr)->attr).name);
	goto rem_bin_attr;
	}
	}

	return 0;

	rem_bin_attr:
	for (bin_attr = mesh_bin_attrs; *bin_attr; ++bin_attr)
	sysfs_remove_bin_file(bat_priv->mesh_obj, (*bin_attr));
	rem_attr:
	for (bat_attr = mesh_attrs; *bat_attr; ++bat_attr)
	sysfs_remove_file(bat_priv->mesh_obj, &((*bat_attr)->attr));

	kobject_put(bat_priv->mesh_obj);
	bat_priv->mesh_obj = NULL;
	out:
	return -ENOMEM;
	}

	void sysfs_del_meshif(struct net_device *dev)
	{
	struct bat_priv *bat_priv = netdev_priv(dev);
	struct bat_attribute **bat_attr;
	struct bin_attribute **bin_attr;

	for (bin_attr = mesh_bin_attrs; *bin_attr; ++bin_attr)
	sysfs_remove_bin_file(bat_priv->mesh_obj, (*bin_attr));

	for (bat_attr = mesh_attrs; *bat_attr; ++bat_attr)
	sysfs_remove_file(bat_priv->mesh_obj, &((*bat_attr)->attr));

	kobject_put(bat_priv->mesh_obj);
	bat_priv->mesh_obj = NULL;
	}