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path: root/drivers/staging/batman-adv/bat_sysfs.c
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Diffstat (limited to 'drivers/staging/batman-adv/bat_sysfs.c')
-rw-r--r--drivers/staging/batman-adv/bat_sysfs.c484
1 files changed, 484 insertions, 0 deletions
diff --git a/drivers/staging/batman-adv/bat_sysfs.c b/drivers/staging/batman-adv/bat_sysfs.c
new file mode 100644
index 000000000000..e2c000b80ca0
--- /dev/null
+++ b/drivers/staging/batman-adv/bat_sysfs.c
@@ -0,0 +1,484 @@
+/*
+ * 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);
+};
+
+struct hardif_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, \
+};
+
+#define HARDIF_ATTR(_name, _mode, _show, _store) \
+struct hardif_attribute hardif_attr_##_name = { \
+ .attr = {.name = __stringify(_name), \
+ .mode = _mode }, \
+ .show = _show, \
+ .store = _store, \
+};
+
+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 ssize_t show_orig_interval(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));
+
+ return sprintf(buff, "status: %i\n",
+ atomic_read(&bat_priv->orig_interval));
+}
+
+static ssize_t store_orig_interval(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 orig_interval_tmp;
+ int ret;
+
+ ret = strict_strtoul(buff, 10, &orig_interval_tmp);
+ if (ret) {
+ printk(KERN_INFO "batman-adv:Invalid parameter for 'orig_interval' setting on mesh %s received: %s\n",
+ net_dev->name, buff);
+ return -EINVAL;
+ }
+
+ if (orig_interval_tmp <= JITTER * 2) {
+ printk(KERN_INFO "batman-adv:New originator interval too small: %li (min: %i)\n",
+ orig_interval_tmp, JITTER * 2);
+ return -EINVAL;
+ }
+
+ if (atomic_read(&bat_priv->orig_interval) == orig_interval_tmp)
+ return count;
+
+ printk(KERN_INFO "batman-adv:Changing originator interval from: %i to: %li on mesh: %s\n",
+ atomic_read(&bat_priv->orig_interval),
+ orig_interval_tmp, net_dev->name);
+
+ atomic_set(&bat_priv->orig_interval, orig_interval_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 BAT_ATTR(orig_interval, S_IRUGO | S_IWUSR,
+ show_orig_interval, store_orig_interval);
+
+static struct bat_attribute *mesh_attrs[] = {
+ &bat_attr_aggregate_ogm,
+ &bat_attr_vis_mode,
+ &bat_attr_orig_interval,
+ 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);
+ atomic_set(&bat_priv->orig_interval, 1000);
+ bat_priv->primary_if = NULL;
+ bat_priv->num_ifaces = 0;
+
+ 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;
+}
+
+static ssize_t show_mesh_iface(struct kobject *kobj, struct attribute *attr,
+ char *buff)
+{
+ struct device *dev = to_dev(kobj->parent);
+ struct net_device *net_dev = to_net_dev(dev);
+ struct batman_if *batman_if = get_batman_if_by_netdev(net_dev);
+
+ if (!batman_if)
+ return 0;
+
+ return sprintf(buff, "status: %s\ncommands: none, bat0\n",
+ batman_if->if_status == IF_NOT_IN_USE ?
+ "none" : "bat0");
+}
+
+static ssize_t store_mesh_iface(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 batman_if *batman_if = get_batman_if_by_netdev(net_dev);
+ int status_tmp = -1;
+
+ if (!batman_if)
+ return count;
+
+ if (strncmp(buff, "none", 4) == 0)
+ status_tmp = IF_NOT_IN_USE;
+
+ if (strncmp(buff, "bat0", 4) == 0)
+ status_tmp = IF_I_WANT_YOU;
+
+ if (status_tmp < 0) {
+ if (buff[count - 1] == '\n')
+ buff[count - 1] = '\0';
+
+ printk(KERN_ERR "batman-adv:Invalid parameter for 'mesh_iface' setting received: %s\n",
+ buff);
+ return -EINVAL;
+ }
+
+ if ((batman_if->if_status == status_tmp) ||
+ ((status_tmp == IF_I_WANT_YOU) &&
+ (batman_if->if_status != IF_NOT_IN_USE)))
+ return count;
+
+ if (status_tmp == IF_I_WANT_YOU)
+ status_tmp = hardif_enable_interface(batman_if);
+ else
+ hardif_disable_interface(batman_if);
+
+ return (status_tmp < 0 ? status_tmp : count);
+}
+
+static ssize_t show_iface_status(struct kobject *kobj, struct attribute *attr,
+ char *buff)
+{
+ struct device *dev = to_dev(kobj->parent);
+ struct net_device *net_dev = to_net_dev(dev);
+ struct batman_if *batman_if = get_batman_if_by_netdev(net_dev);
+
+ if (!batman_if)
+ return 0;
+
+ switch (batman_if->if_status) {
+ case IF_TO_BE_REMOVED:
+ return sprintf(buff, "disabling\n");
+ case IF_INACTIVE:
+ return sprintf(buff, "inactive\n");
+ case IF_ACTIVE:
+ return sprintf(buff, "active\n");
+ case IF_TO_BE_ACTIVATED:
+ return sprintf(buff, "enabling\n");
+ case IF_NOT_IN_USE:
+ default:
+ return sprintf(buff, "not in use\n");
+ }
+}
+
+static HARDIF_ATTR(mesh_iface, S_IRUGO | S_IWUSR,
+ show_mesh_iface, store_mesh_iface);
+static HARDIF_ATTR(iface_status, S_IRUGO, show_iface_status, NULL);
+
+static struct hardif_attribute *batman_attrs[] = {
+ &hardif_attr_mesh_iface,
+ &hardif_attr_iface_status,
+ NULL,
+};
+
+int sysfs_add_hardif(struct kobject **hardif_obj, struct net_device *dev)
+{
+ struct kobject *hardif_kobject = &dev->dev.kobj;
+ struct hardif_attribute **hardif_attr;
+ int err;
+
+ *hardif_obj = kobject_create_and_add(SYSFS_IF_BAT_SUBDIR,
+ hardif_kobject);
+
+ if (!*hardif_obj) {
+ printk(KERN_ERR "batman-adv:Can't add sysfs directory: %s/%s\n",
+ dev->name, SYSFS_IF_BAT_SUBDIR);
+ goto out;
+ }
+
+ for (hardif_attr = batman_attrs; *hardif_attr; ++hardif_attr) {
+ err = sysfs_create_file(*hardif_obj, &((*hardif_attr)->attr));
+ if (err) {
+ printk(KERN_ERR "batman-adv:Can't add sysfs file: %s/%s/%s\n",
+ dev->name, SYSFS_IF_BAT_SUBDIR,
+ ((*hardif_attr)->attr).name);
+ goto rem_attr;
+ }
+ }
+
+ return 0;
+
+rem_attr:
+ for (hardif_attr = batman_attrs; *hardif_attr; ++hardif_attr)
+ sysfs_remove_file(*hardif_obj, &((*hardif_attr)->attr));
+out:
+ return -ENOMEM;
+}
+
+void sysfs_del_hardif(struct kobject **hardif_obj)
+{
+ kobject_put(*hardif_obj);
+ *hardif_obj = NULL;
+}
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.