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Commit 76e9f276 authored by Sven Eckelmann's avatar Sven Eckelmann Committed by Simon Wunderlich
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batman-adv: Drop deprecated sysfs support 

The sysfs in batman-adv support was marked as deprecated by the commit
42cdd521 ("batman-adv: ABI: Mark sysfs files as deprecated") and
scheduled for removal in 2021.
Signed-off-by: default avatarSven Eckelmann <sven@narfation.org>
Signed-off-by: default avatarSimon Wunderlich <sw@simonwunderlich.de>
parent a5ad457e
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Showing with 1 addition and 1634 deletions
Documentation/ABI/obsolete/sysfs-class-net-batman-adv deleted 100644 → 0
View file @ a5ad457e
This ABI is deprecated and will be removed after 2021. It is
replaced with the batadv generic netlink family.
What: /sys/class/net/<iface>/batman-adv/elp_interval
Date: Feb 2014
Contact: Linus Lüssing <linus.luessing@web.de>
Description:
Defines the interval in milliseconds in which batman
emits probing packets for neighbor sensing (ELP).
What: /sys/class/net/<iface>/batman-adv/iface_status
Date: May 2010
Contact: Marek Lindner <mareklindner@neomailbox.ch>
Description:
Indicates the status of <iface> as it is seen by batman.
What: /sys/class/net/<iface>/batman-adv/mesh_iface
Date: May 2010
Contact: Marek Lindner <mareklindner@neomailbox.ch>
Description:
The /sys/class/net/<iface>/batman-adv/mesh_iface file
displays the batman mesh interface this <iface>
currently is associated with.
What: /sys/class/net/<iface>/batman-adv/throughput_override
Date: Feb 2014
Contact: Antonio Quartulli <a@unstable.cc>
description:
Defines the throughput value to be used by B.A.T.M.A.N. V
when estimating the link throughput using this interface.
If the value is set to 0 then batman-adv will try to
estimate the throughput by itself.
Documentation/ABI/obsolete/sysfs-class-net-mesh deleted 100644 → 0
View file @ a5ad457e
This ABI is deprecated and will be removed after 2021. It is
replaced with the batadv generic netlink family.
What: /sys/class/net/<mesh_iface>/mesh/aggregated_ogms
Date: May 2010
Contact: Marek Lindner <mareklindner@neomailbox.ch>
Description:
Indicates whether the batman protocol messages of the
mesh <mesh_iface> shall be aggregated or not.
What: /sys/class/net/<mesh_iface>/mesh/<vlan_subdir>/ap_isolation
Date: May 2011
Contact: Antonio Quartulli <a@unstable.cc>
Description:
Indicates whether the data traffic going from a
wireless client to another wireless client will be
silently dropped. <vlan_subdir> is empty when referring
to the untagged lan.
What: /sys/class/net/<mesh_iface>/mesh/bonding
Date: June 2010
Contact: Simon Wunderlich <sw@simonwunderlich.de>
Description:
Indicates whether the data traffic going through the
mesh will be sent using multiple interfaces at the
same time (if available).
What: /sys/class/net/<mesh_iface>/mesh/bridge_loop_avoidance
Date: November 2011
Contact: Simon Wunderlich <sw@simonwunderlich.de>
Description:
Indicates whether the bridge loop avoidance feature
is enabled. This feature detects and avoids loops
between the mesh and devices bridged with the soft
interface <mesh_iface>.
What: /sys/class/net/<mesh_iface>/mesh/fragmentation
Date: October 2010
Contact: Andreas Langer <an.langer@gmx.de>
Description:
Indicates whether the data traffic going through the
mesh will be fragmented or silently discarded if the
packet size exceeds the outgoing interface MTU.
What: /sys/class/net/<mesh_iface>/mesh/gw_bandwidth
Date: October 2010
Contact: Marek Lindner <mareklindner@neomailbox.ch>
Description:
Defines the bandwidth which is propagated by this
node if gw_mode was set to 'server'.
What: /sys/class/net/<mesh_iface>/mesh/gw_mode
Date: October 2010
Contact: Marek Lindner <mareklindner@neomailbox.ch>
Description:
Defines the state of the gateway features. Can be
either 'off', 'client' or 'server'.
What: /sys/class/net/<mesh_iface>/mesh/gw_sel_class
Date: October 2010
Contact: Marek Lindner <mareklindner@neomailbox.ch>
Description:
Defines the selection criteria this node will use
to choose a gateway if gw_mode was set to 'client'.
What: /sys/class/net/<mesh_iface>/mesh/hop_penalty
Date: Oct 2010
Contact: Linus Lüssing <linus.luessing@web.de>
Description:
Defines the penalty which will be applied to an
originator message's tq-field on every hop.
What: /sys/class/net/<mesh_iface>/mesh/isolation_mark
Date: Nov 2013
Contact: Antonio Quartulli <a@unstable.cc>
Description:
Defines the isolation mark (and its bitmask) which
is used to classify clients as "isolated" by the
Extended Isolation feature.
What: /sys/class/net/<mesh_iface>/mesh/multicast_mode
Date: Feb 2014
Contact: Linus Lüssing <linus.luessing@web.de>
Description:
Indicates whether multicast optimizations are enabled
or disabled. If set to zero then all nodes in the
mesh are going to use classic flooding for any
multicast packet with no optimizations.
What: /sys/class/net/<mesh_iface>/mesh/network_coding
Date: Nov 2012
Contact: Martin Hundeboll <martin@hundeboll.net>
Description:
Controls whether Network Coding (using some magic
to send fewer wifi packets but still the same
content) is enabled or not.
What: /sys/class/net/<mesh_iface>/mesh/orig_interval
Date: May 2010
Contact: Marek Lindner <mareklindner@neomailbox.ch>
Description:
Defines the interval in milliseconds in which batman
sends its protocol messages.
What: /sys/class/net/<mesh_iface>/mesh/routing_algo
Date: Dec 2011
Contact: Marek Lindner <mareklindner@neomailbox.ch>
Description:
Defines the routing procotol this mesh instance
uses to find the optimal paths through the mesh.
MAINTAINERS
View file @ 76e9f276
......@@ -3120,8 +3120,6 @@ Q: https://patchwork.open-mesh.org/project/batman/list/
B: https://www.open-mesh.org/projects/batman-adv/issues
C: irc://chat.freenode.net/batman
T: git https://git.open-mesh.org/linux-merge.git
F: Documentation/ABI/obsolete/sysfs-class-net-batman-adv
F: Documentation/ABI/obsolete/sysfs-class-net-mesh
F: Documentation/networking/batman-adv.rst
F: include/uapi/linux/batadv_packet.h
F: include/uapi/linux/batman_adv.h
......
net/batman-adv/Kconfig
View file @ 76e9f276
......@@ -97,17 +97,6 @@ config BATMAN_ADV_DEBUG
buffer. The output is controlled via the batadv netdev specific
log_level setting.
config BATMAN_ADV_SYSFS
bool "batman-adv sysfs entries"
depends on BATMAN_ADV
help
Say Y here if you want to enable batman-adv device configuration and
status interface through sysfs attributes. It is replaced by the
batadv generic netlink family but still used by various userspace
tools and scripts.
If unsure, say Y.
config BATMAN_ADV_TRACING
bool "B.A.T.M.A.N. tracing support"
depends on BATMAN_ADV
......
net/batman-adv/Makefile
View file @ 76e9f276
......@@ -28,7 +28,6 @@ batman-adv-y += originator.o
batman-adv-y += routing.o
batman-adv-y += send.o
batman-adv-y += soft-interface.o
batman-adv-$(CONFIG_BATMAN_ADV_SYSFS) += sysfs.o
batman-adv-$(CONFIG_BATMAN_ADV_TRACING) += trace.o
batman-adv-y += tp_meter.o
batman-adv-y += translation-table.o
......
net/batman-adv/bat_v.c
View file @ 76e9f276
......@@ -13,7 +13,6 @@
#include <linux/if_ether.h>
#include <linux/init.h>
#include <linux/jiffies.h>
#include <linux/kernel.h>
#include <linux/kref.h>
#include <linux/list.h>
#include <linux/minmax.h>
......@@ -686,13 +685,6 @@ static ssize_t batadv_v_store_sel_class(struct batadv_priv *bat_priv,
return count;
}
static ssize_t batadv_v_show_sel_class(struct batadv_priv *bat_priv, char *buff)
{
u32 class = atomic_read(&bat_priv->gw.sel_class);
return sprintf(buff, "%u.%u MBit\n", class / 10, class % 10);
}
/**
* batadv_v_gw_throughput_get() - retrieve the GW-bandwidth for a given GW
* @gw_node: the GW to retrieve the metric for
......@@ -1061,7 +1053,6 @@ static struct batadv_algo_ops batadv_batman_v __read_mostly = {
.gw = {
.init_sel_class = batadv_v_init_sel_class,
.store_sel_class = batadv_v_store_sel_class,
.show_sel_class = batadv_v_show_sel_class,
.get_best_gw_node = batadv_v_gw_get_best_gw_node,
.is_eligible = batadv_v_gw_is_eligible,
#ifdef CONFIG_BATMAN_ADV_DEBUGFS
......
net/batman-adv/hard-interface.c
View file @ 76e9f276
......@@ -39,7 +39,6 @@
#include "originator.h"
#include "send.h"
#include "soft-interface.h"
#include "sysfs.h"
#include "translation-table.h"
/**
......@@ -889,13 +888,9 @@ void batadv_hardif_disable_interface(struct batadv_hard_iface *hard_iface,
batadv_hardif_recalc_extra_skbroom(hard_iface->soft_iface);
/* nobody uses this interface anymore */
if (batadv_hardif_cnt(hard_iface->soft_iface) <= 1) {
if (batadv_hardif_cnt(hard_iface->soft_iface) <= 1)
batadv_gw_check_client_stop(bat_priv);
if (autodel == BATADV_IF_CLEANUP_AUTO)
batadv_softif_destroy_sysfs(hard_iface->soft_iface);
}
hard_iface->soft_iface = NULL;
batadv_hardif_put(hard_iface);
......@@ -908,7 +903,6 @@ static struct batadv_hard_iface *
batadv_hardif_add_interface(struct net_device *net_dev)
{
struct batadv_hard_iface *hard_iface;
int ret;
ASSERT_RTNL();
......@@ -921,10 +915,6 @@ batadv_hardif_add_interface(struct net_device *net_dev)
if (!hard_iface)
goto release_dev;
ret = batadv_sysfs_add_hardif(&hard_iface->hardif_obj, net_dev);
if (ret)
goto free_if;
hard_iface->net_dev = net_dev;
hard_iface->soft_iface = NULL;
hard_iface->if_status = BATADV_IF_NOT_IN_USE;
......@@ -954,8 +944,6 @@ batadv_hardif_add_interface(struct net_device *net_dev)
return hard_iface;
free_if:
kfree(hard_iface);
release_dev:
dev_put(net_dev);
out:
......@@ -976,7 +964,6 @@ static void batadv_hardif_remove_interface(struct batadv_hard_iface *hard_iface)
hard_iface->if_status = BATADV_IF_TO_BE_REMOVED;
batadv_debugfs_del_hardif(hard_iface);
batadv_sysfs_del_hardif(&hard_iface->hardif_obj);
batadv_hardif_put(hard_iface);
}
......@@ -994,7 +981,6 @@ static int batadv_hard_if_event_softif(unsigned long event,
switch (event) {
case NETDEV_REGISTER:
batadv_sysfs_add_meshif(net_dev);
bat_priv = netdev_priv(net_dev);
batadv_softif_create_vlan(bat_priv, BATADV_NO_FLAGS);
break;
......
net/batman-adv/hard-interface.h
View file @ 76e9f276
......@@ -42,12 +42,6 @@ enum batadv_hard_if_state {
/** @BATADV_IF_TO_BE_ACTIVATED: interface is getting activated */
BATADV_IF_TO_BE_ACTIVATED,
/**
* @BATADV_IF_I_WANT_YOU: interface is queued up (using sysfs) for being
* added as slave interface of a batman-adv soft interface
*/
BATADV_IF_I_WANT_YOU,
};
/**
......
net/batman-adv/soft-interface.c
View file @ 76e9f276
......@@ -30,7 +30,6 @@
#include <linux/random.h>
#include <linux/rculist.h>
#include <linux/rcupdate.h>
#include <linux/rtnetlink.h>
#include <linux/skbuff.h>
#include <linux/slab.h>
#include <linux/socket.h>
......@@ -52,7 +51,6 @@
#include "network-coding.h"
#include "originator.h"
#include "send.h"
#include "sysfs.h"
#include "translation-table.h"
/**
......@@ -575,7 +573,6 @@ struct batadv_softif_vlan *batadv_softif_vlan_get(struct batadv_priv *bat_priv,
int batadv_softif_create_vlan(struct batadv_priv *bat_priv, unsigned short vid)
{
struct batadv_softif_vlan *vlan;
int err;
spin_lock_bh(&bat_priv->softif_vlan_list_lock);
......@@ -602,19 +599,6 @@ int batadv_softif_create_vlan(struct batadv_priv *bat_priv, unsigned short vid)
hlist_add_head_rcu(&vlan->list, &bat_priv->softif_vlan_list);
spin_unlock_bh(&bat_priv->softif_vlan_list_lock);
/* batadv_sysfs_add_vlan cannot be in the spinlock section due to the
* sleeping behavior of the sysfs functions and the fs_reclaim lock
*/
err = batadv_sysfs_add_vlan(bat_priv->soft_iface, vlan);
if (err) {
/* ref for the function */
batadv_softif_vlan_put(vlan);
/* ref for the list */
batadv_softif_vlan_put(vlan);
return err;
}
/* add a new TT local entry. This one will be marked with the NOPURGE
* flag
*/
......@@ -642,7 +626,6 @@ static void batadv_softif_destroy_vlan(struct batadv_priv *bat_priv,
batadv_tt_local_remove(bat_priv, bat_priv->soft_iface->dev_addr,
vlan->vid, "vlan interface destroyed", false);
batadv_sysfs_del_vlan(bat_priv, vlan);
batadv_softif_vlan_put(vlan);
}
......@@ -662,7 +645,6 @@ static int batadv_interface_add_vid(struct net_device *dev, __be16 proto,
{
struct batadv_priv *bat_priv = netdev_priv(dev);
struct batadv_softif_vlan *vlan;
int ret;
/* only 802.1Q vlans are supported.
* batman-adv does not know how to handle other types
......@@ -682,17 +664,6 @@ static int batadv_interface_add_vid(struct net_device *dev, __be16 proto,
if (!vlan)
return batadv_softif_create_vlan(bat_priv, vid);
/* recreate the sysfs object if it was already destroyed (and it should
* be since we received a kill_vid() for this vlan
*/
if (!vlan->kobj) {
ret = batadv_sysfs_add_vlan(bat_priv->soft_iface, vlan);
if (ret) {
batadv_softif_vlan_put(vlan);
return ret;
}
}
/* add a new TT local entry. This one will be marked with the NOPURGE
* flag. This must be added again, even if the vlan object already
* exists, because the entry was deleted by kill_vid()
......@@ -1161,28 +1132,6 @@ struct net_device *batadv_softif_create(struct net *net, const char *name)
return soft_iface;
}
/**
* batadv_softif_destroy_sysfs() - deletion of batadv_soft_interface via sysfs
* @soft_iface: the to-be-removed batman-adv interface
*/
void batadv_softif_destroy_sysfs(struct net_device *soft_iface)
{
struct batadv_priv *bat_priv = netdev_priv(soft_iface);
struct batadv_softif_vlan *vlan;
ASSERT_RTNL();
/* destroy the "untagged" VLAN */
vlan = batadv_softif_vlan_get(bat_priv, BATADV_NO_FLAGS);
if (vlan) {
batadv_softif_destroy_vlan(bat_priv, vlan);
batadv_softif_vlan_put(vlan);
}
batadv_sysfs_del_meshif(soft_iface);
unregister_netdevice(soft_iface);
}
/**
* batadv_softif_destroy_netlink() - deletion of batadv_soft_interface via
* netlink
......@@ -1209,7 +1158,6 @@ static void batadv_softif_destroy_netlink(struct net_device *soft_iface,
batadv_softif_vlan_put(vlan);
}
batadv_sysfs_del_meshif(soft_iface);
unregister_netdevice_queue(soft_iface, head);
}
......
net/batman-adv/soft-interface.h
View file @ 76e9f276
......@@ -20,7 +20,6 @@ void batadv_interface_rx(struct net_device *soft_iface,
struct sk_buff *skb, int hdr_size,
struct batadv_orig_node *orig_node);
struct net_device *batadv_softif_create(struct net *net, const char *name);
void batadv_softif_destroy_sysfs(struct net_device *soft_iface);
bool batadv_softif_is_valid(const struct net_device *net_dev);
extern struct rtnl_link_ops batadv_link_ops;
int batadv_softif_create_vlan(struct batadv_priv *bat_priv, unsigned short vid);
......
net/batman-adv/sysfs.c deleted 100644 → 0
View file @ a5ad457e
// SPDX-License-Identifier: GPL-2.0
/* Copyright (C) 2010-2020 B.A.T.M.A.N. contributors:
*
* Marek Lindner
*/
#include "sysfs.h"
#include "main.h"
#include <asm/current.h>
#include <linux/atomic.h>
#include <linux/compiler.h>
#include <linux/device.h>
#include <linux/errno.h>
#include <linux/gfp.h>
#include <linux/if.h>
#include <linux/if_vlan.h>
#include <linux/kernel.h>
#include <linux/kobject.h>
#include <linux/kref.h>
#include <linux/limits.h>
#include <linux/netdevice.h>
#include <linux/printk.h>
#include <linux/rculist.h>
#include <linux/rcupdate.h>
#include <linux/rtnetlink.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/stddef.h>
#include <linux/string.h>
#include <linux/stringify.h>
#include <linux/workqueue.h>
#include <uapi/linux/batadv_packet.h>
#include <uapi/linux/batman_adv.h>
#include "bridge_loop_avoidance.h"
#include "distributed-arp-table.h"
#include "gateway_client.h"
#include "gateway_common.h"
#include "hard-interface.h"
#include "log.h"
#include "netlink.h"
#include "network-coding.h"
#include "soft-interface.h"
/**
* batadv_sysfs_deprecated() - Log use of deprecated batadv sysfs access
* @attr: attribute which was accessed
*/
static void batadv_sysfs_deprecated(struct attribute *attr)
{
pr_warn_ratelimited(DEPRECATED "%s (pid %d) Use of sysfs file \"%s\".\nUse batadv genl family instead",
current->comm, task_pid_nr(current), attr->name);
}
static struct net_device *batadv_kobj_to_netdev(struct kobject *obj)
{
struct device *dev = container_of(obj->parent, struct device, kobj);
return to_net_dev(dev);
}
static struct batadv_priv *batadv_kobj_to_batpriv(struct kobject *obj)
{
struct net_device *net_dev = batadv_kobj_to_netdev(obj);
return netdev_priv(net_dev);
}
/**
* batadv_vlan_kobj_to_batpriv() - convert a vlan kobj in the associated batpriv
* @obj: kobject to covert
*
* Return: the associated batadv_priv struct.
*/
static struct batadv_priv *batadv_vlan_kobj_to_batpriv(struct kobject *obj)
{
/* VLAN specific attributes are located in the root sysfs folder if they
* refer to the untagged VLAN..
*/
if (!strcmp(BATADV_SYSFS_IF_MESH_SUBDIR, obj->name))
return batadv_kobj_to_batpriv(obj);
/* ..while the attributes for the tagged vlans are located in
* the in the corresponding "vlan%VID" subfolder
*/
return batadv_kobj_to_batpriv(obj->parent);
}
/**
* batadv_kobj_to_vlan() - convert a kobj in the associated softif_vlan struct
* @bat_priv: the bat priv with all the soft interface information
* @obj: kobject to covert
*
* Return: the associated softif_vlan struct if found, NULL otherwise.
*/
static struct batadv_softif_vlan *
batadv_kobj_to_vlan(struct batadv_priv *bat_priv, struct kobject *obj)
{
struct batadv_softif_vlan *vlan_tmp, *vlan = NULL;
rcu_read_lock();
hlist_for_each_entry_rcu(vlan_tmp, &bat_priv->softif_vlan_list, list) {
if (vlan_tmp->kobj != obj)
continue;
if (!kref_get_unless_zero(&vlan_tmp->refcount))
continue;
vlan = vlan_tmp;
break;
}
rcu_read_unlock();
return vlan;
}
/* Use this, if you have customized show and store functions for vlan attrs */
#define BATADV_ATTR_VLAN(_name, _mode, _show, _store) \
struct batadv_attribute batadv_attr_vlan_##_name = { \
.attr = {.name = __stringify(_name), \
.mode = _mode }, \
.show = _show, \
.store = _store, \
}
/* Use this, if you have customized show and store functions */
#define BATADV_ATTR(_name, _mode, _show, _store) \
struct batadv_attribute batadv_attr_##_name = { \
.attr = {.name = __stringify(_name), \
.mode = _mode }, \
.show = _show, \
.store = _store, \
}
#define BATADV_ATTR_SIF_STORE_BOOL(_name, _post_func) \
ssize_t batadv_store_##_name(struct kobject *kobj, \
struct attribute *attr, char *buff, \
size_t count) \
{ \
struct net_device *net_dev = batadv_kobj_to_netdev(kobj); \
struct batadv_priv *bat_priv = netdev_priv(net_dev); \
ssize_t length; \
\
batadv_sysfs_deprecated(attr); \
length = __batadv_store_bool_attr(buff, count, _post_func, attr,\
&bat_priv->_name, net_dev); \
\
batadv_netlink_notify_mesh(bat_priv); \
\
return length; \
}
#define BATADV_ATTR_SIF_SHOW_BOOL(_name) \
ssize_t batadv_show_##_name(struct kobject *kobj, \
struct attribute *attr, char *buff) \
{ \
struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); \
\
batadv_sysfs_deprecated(attr); \
return sprintf(buff, "%s\n", \
atomic_read(&bat_priv->_name) == 0 ? \
"disabled" : "enabled"); \
} \
/* Use this, if you are going to turn a [name] in the soft-interface
* (bat_priv) on or off
*/
#define BATADV_ATTR_SIF_BOOL(_name, _mode, _post_func) \
static BATADV_ATTR_SIF_STORE_BOOL(_name, _post_func) \
static BATADV_ATTR_SIF_SHOW_BOOL(_name) \
static BATADV_ATTR(_name, _mode, batadv_show_##_name, \
batadv_store_##_name)
#define BATADV_ATTR_SIF_STORE_UINT(_name, _var, _min, _max, _post_func) \
ssize_t batadv_store_##_name(struct kobject *kobj, \
struct attribute *attr, char *buff, \
size_t count) \
{ \
struct net_device *net_dev = batadv_kobj_to_netdev(kobj); \
struct batadv_priv *bat_priv = netdev_priv(net_dev); \
ssize_t length; \
\
batadv_sysfs_deprecated(attr); \
length = __batadv_store_uint_attr(buff, count, _min, _max, \
_post_func, attr, \
&bat_priv->_var, net_dev, \
NULL); \
\
batadv_netlink_notify_mesh(bat_priv); \
\
return length; \
}
#define BATADV_ATTR_SIF_SHOW_UINT(_name, _var) \
ssize_t batadv_show_##_name(struct kobject *kobj, \
struct attribute *attr, char *buff) \
{ \
struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj); \
\
batadv_sysfs_deprecated(attr); \
return sprintf(buff, "%i\n", atomic_read(&bat_priv->_var)); \
} \
/* Use this, if you are going to set [name] in the soft-interface
* (bat_priv) to an unsigned integer value
*/
#define BATADV_ATTR_SIF_UINT(_name, _var, _mode, _min, _max, _post_func)\
static BATADV_ATTR_SIF_STORE_UINT(_name, _var, _min, _max, _post_func)\
static BATADV_ATTR_SIF_SHOW_UINT(_name, _var) \
static BATADV_ATTR(_name, _mode, batadv_show_##_name, \
batadv_store_##_name)
#define BATADV_ATTR_VLAN_STORE_BOOL(_name, _post_func) \
ssize_t batadv_store_vlan_##_name(struct kobject *kobj, \
struct attribute *attr, char *buff, \
size_t count) \
{ \
struct batadv_priv *bat_priv = batadv_vlan_kobj_to_batpriv(kobj);\
struct batadv_softif_vlan *vlan = batadv_kobj_to_vlan(bat_priv, \
kobj); \
size_t res = __batadv_store_bool_attr(buff, count, _post_func, \
attr, &vlan->_name, \
bat_priv->soft_iface); \
\
batadv_sysfs_deprecated(attr); \
if (vlan->vid) \
batadv_netlink_notify_vlan(bat_priv, vlan); \
else \
batadv_netlink_notify_mesh(bat_priv); \
\
batadv_softif_vlan_put(vlan); \
return res; \
}
#define BATADV_ATTR_VLAN_SHOW_BOOL(_name) \
ssize_t batadv_show_vlan_##_name(struct kobject *kobj, \
struct attribute *attr, char *buff) \
{ \
struct batadv_priv *bat_priv = batadv_vlan_kobj_to_batpriv(kobj);\
struct batadv_softif_vlan *vlan = batadv_kobj_to_vlan(bat_priv, \
kobj); \
size_t res = sprintf(buff, "%s\n", \
atomic_read(&vlan->_name) == 0 ? \
"disabled" : "enabled"); \
\
batadv_sysfs_deprecated(attr); \
batadv_softif_vlan_put(vlan); \
return res; \
}
/* Use this, if you are going to turn a [name] in the vlan struct on or off */
#define BATADV_ATTR_VLAN_BOOL(_name, _mode, _post_func) \
static BATADV_ATTR_VLAN_STORE_BOOL(_name, _post_func) \
static BATADV_ATTR_VLAN_SHOW_BOOL(_name) \
static BATADV_ATTR_VLAN(_name, _mode, batadv_show_vlan_##_name, \
batadv_store_vlan_##_name)
#define BATADV_ATTR_HIF_STORE_UINT(_name, _var, _min, _max, _post_func) \
ssize_t batadv_store_##_name(struct kobject *kobj, \
struct attribute *attr, char *buff, \
size_t count) \
{ \
struct net_device *net_dev = batadv_kobj_to_netdev(kobj); \
struct batadv_hard_iface *hard_iface; \
struct batadv_priv *bat_priv; \
ssize_t length; \
\
batadv_sysfs_deprecated(attr); \
hard_iface = batadv_hardif_get_by_netdev(net_dev); \
if (!hard_iface) \
return 0; \
\
length = __batadv_store_uint_attr(buff, count, _min, _max, \
_post_func, attr, \
&hard_iface->_var, \
hard_iface->soft_iface, \
net_dev); \
\
if (hard_iface->soft_iface) { \
bat_priv = netdev_priv(hard_iface->soft_iface); \
batadv_netlink_notify_hardif(bat_priv, hard_iface); \
} \
\
batadv_hardif_put(hard_iface); \
return length; \
}
#define BATADV_ATTR_HIF_SHOW_UINT(_name, _var) \
ssize_t batadv_show_##_name(struct kobject *kobj, \
struct attribute *attr, char *buff) \
{ \
struct net_device *net_dev = batadv_kobj_to_netdev(kobj); \
struct batadv_hard_iface *hard_iface; \
ssize_t length; \
\
batadv_sysfs_deprecated(attr); \
hard_iface = batadv_hardif_get_by_netdev(net_dev); \
if (!hard_iface) \
return 0; \
\
length = sprintf(buff, "%i\n", atomic_read(&hard_iface->_var)); \
\
batadv_hardif_put(hard_iface); \
return length; \
}
/* Use this, if you are going to set [name] in hard_iface to an
* unsigned integer value
*/
#define BATADV_ATTR_HIF_UINT(_name, _var, _mode, _min, _max, _post_func)\
static BATADV_ATTR_HIF_STORE_UINT(_name, _var, _min, \
_max, _post_func) \
static BATADV_ATTR_HIF_SHOW_UINT(_name, _var) \
static BATADV_ATTR(_name, _mode, batadv_show_##_name, \
batadv_store_##_name)
static int batadv_store_bool_attr(char *buff, size_t count,
struct net_device *net_dev,
const char *attr_name, atomic_t *attr,
bool *changed)
{
int enabled = -1;
*changed = false;
if (buff[count - 1] == '\n')
buff[count - 1] = '\0';
if ((strncmp(buff, "1", 2) == 0) ||
(strncmp(buff, "enable", 7) == 0) ||
(strncmp(buff, "enabled", 8) == 0))
enabled = 1;
if ((strncmp(buff, "0", 2) == 0) ||
(strncmp(buff, "disable", 8) == 0) ||
(strncmp(buff, "disabled", 9) == 0))
enabled = 0;
if (enabled < 0) {
batadv_info(net_dev, "%s: Invalid parameter received: %s\n",
attr_name, buff);
return -EINVAL;
}
if (atomic_read(attr) == enabled)
return count;
batadv_info(net_dev, "%s: Changing from: %s to: %s\n", attr_name,
atomic_read(attr) == 1 ? "enabled" : "disabled",
enabled == 1 ? "enabled" : "disabled");
*changed = true;
atomic_set(attr, (unsigned int)enabled);
return count;
}
static inline ssize_t
__batadv_store_bool_attr(char *buff, size_t count,
void (*post_func)(struct net_device *),
struct attribute *attr,
atomic_t *attr_store, struct net_device *net_dev)
{
bool changed;
int ret;
ret = batadv_store_bool_attr(buff, count, net_dev, attr->name,
attr_store, &changed);
if (post_func && changed)
post_func(net_dev);
return ret;
}
static int batadv_store_uint_attr(const char *buff, size_t count,
struct net_device *net_dev,
struct net_device *slave_dev,
const char *attr_name,
unsigned int min, unsigned int max,
atomic_t *attr)
{
char ifname[IFNAMSIZ + 3] = "";
unsigned long uint_val;
int ret;
ret = kstrtoul(buff, 10, &uint_val);
if (ret) {
batadv_info(net_dev, "%s: Invalid parameter received: %s\n",
attr_name, buff);
return -EINVAL;
}
if (uint_val < min) {
batadv_info(net_dev, "%s: Value is too small: %lu min: %u\n",
attr_name, uint_val, min);
return -EINVAL;
}
if (uint_val > max) {
batadv_info(net_dev, "%s: Value is too big: %lu max: %u\n",
attr_name, uint_val, max);
return -EINVAL;
}
if (atomic_read(attr) == uint_val)
return count;
if (slave_dev)
snprintf(ifname, sizeof(ifname), "%s: ", slave_dev->name);
batadv_info(net_dev, "%s: %sChanging from: %i to: %lu\n",
attr_name, ifname, atomic_read(attr), uint_val);
atomic_set(attr, uint_val);
return count;
}
static ssize_t __batadv_store_uint_attr(const char *buff, size_t count,
int min, int max,
void (*post_func)(struct net_device *),
const struct attribute *attr,
atomic_t *attr_store,
struct net_device *net_dev,
struct net_device *slave_dev)
{
int ret;
ret = batadv_store_uint_attr(buff, count, net_dev, slave_dev,
attr->name, min, max, attr_store);
if (post_func && ret)
post_func(net_dev);
return ret;
}
static ssize_t batadv_show_bat_algo(struct kobject *kobj,
struct attribute *attr, char *buff)
{
struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj);
batadv_sysfs_deprecated(attr);
return sprintf(buff, "%s\n", bat_priv->algo_ops->name);
}
static void batadv_post_gw_reselect(struct net_device *net_dev)
{
struct batadv_priv *bat_priv = netdev_priv(net_dev);
batadv_gw_reselect(bat_priv);
}
static ssize_t batadv_show_gw_mode(struct kobject *kobj, struct attribute *attr,
char *buff)
{
struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj);
int bytes_written;
batadv_sysfs_deprecated(attr);
/* GW mode is not available if the routing algorithm in use does not
* implement the GW API
*/
if (!bat_priv->algo_ops->gw.get_best_gw_node ||
!bat_priv->algo_ops->gw.is_eligible)
return -ENOENT;
switch (atomic_read(&bat_priv->gw.mode)) {
case BATADV_GW_MODE_CLIENT:
bytes_written = sprintf(buff, "%s\n",
BATADV_GW_MODE_CLIENT_NAME);
break;
case BATADV_GW_MODE_SERVER:
bytes_written = sprintf(buff, "%s\n",
BATADV_GW_MODE_SERVER_NAME);
break;
default:
bytes_written = sprintf(buff, "%s\n",
BATADV_GW_MODE_OFF_NAME);
break;
}
return bytes_written;
}
static ssize_t batadv_store_gw_mode(struct kobject *kobj,
struct attribute *attr, char *buff,
size_t count)
{
struct net_device *net_dev = batadv_kobj_to_netdev(kobj);
struct batadv_priv *bat_priv = netdev_priv(net_dev);
char *curr_gw_mode_str;
int gw_mode_tmp = -1;
batadv_sysfs_deprecated(attr);
/* toggling GW mode is allowed only if the routing algorithm in use
* provides the GW API
*/
if (!bat_priv->algo_ops->gw.get_best_gw_node ||
!bat_priv->algo_ops->gw.is_eligible)
return -EINVAL;
if (buff[count - 1] == '\n')
buff[count - 1] = '\0';
if (strncmp(buff, BATADV_GW_MODE_OFF_NAME,
strlen(BATADV_GW_MODE_OFF_NAME)) == 0)
gw_mode_tmp = BATADV_GW_MODE_OFF;
if (strncmp(buff, BATADV_GW_MODE_CLIENT_NAME,
strlen(BATADV_GW_MODE_CLIENT_NAME)) == 0)
gw_mode_tmp = BATADV_GW_MODE_CLIENT;
if (strncmp(buff, BATADV_GW_MODE_SERVER_NAME,
strlen(BATADV_GW_MODE_SERVER_NAME)) == 0)
gw_mode_tmp = BATADV_GW_MODE_SERVER;
if (gw_mode_tmp < 0) {
batadv_info(net_dev,
"Invalid parameter for 'gw mode' setting received: %s\n",
buff);
return -EINVAL;
}
if (atomic_read(&bat_priv->gw.mode) == gw_mode_tmp)
return count;
switch (atomic_read(&bat_priv->gw.mode)) {
case BATADV_GW_MODE_CLIENT:
curr_gw_mode_str = BATADV_GW_MODE_CLIENT_NAME;
break;
case BATADV_GW_MODE_SERVER:
curr_gw_mode_str = BATADV_GW_MODE_SERVER_NAME;
break;
default:
curr_gw_mode_str = BATADV_GW_MODE_OFF_NAME;
break;
}
batadv_info(net_dev, "Changing gw mode from: %s to: %s\n",
curr_gw_mode_str, buff);
/* Invoking batadv_gw_reselect() is not enough to really de-select the
* current GW. It will only instruct the gateway client code to perform
* a re-election the next time that this is needed.
*
* When gw client mode is being switched off the current GW must be
* de-selected explicitly otherwise no GW_ADD uevent is thrown on
* client mode re-activation. This is operation is performed in
* batadv_gw_check_client_stop().
*/
batadv_gw_reselect(bat_priv);
/* always call batadv_gw_check_client_stop() before changing the gateway
* state
*/
batadv_gw_check_client_stop(bat_priv);
atomic_set(&bat_priv->gw.mode, (unsigned int)gw_mode_tmp);
batadv_gw_tvlv_container_update(bat_priv);
batadv_netlink_notify_mesh(bat_priv);
return count;
}
static ssize_t batadv_show_gw_sel_class(struct kobject *kobj,
struct attribute *attr, char *buff)
{
struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj);
batadv_sysfs_deprecated(attr);
/* GW selection class is not available if the routing algorithm in use
* does not implement the GW API
*/
if (!bat_priv->algo_ops->gw.get_best_gw_node ||
!bat_priv->algo_ops->gw.is_eligible)
return -ENOENT;
if (bat_priv->algo_ops->gw.show_sel_class)
return bat_priv->algo_ops->gw.show_sel_class(bat_priv, buff);
return sprintf(buff, "%i\n", atomic_read(&bat_priv->gw.sel_class));
}
static ssize_t batadv_store_gw_sel_class(struct kobject *kobj,
struct attribute *attr, char *buff,
size_t count)
{
struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj);
ssize_t length;
batadv_sysfs_deprecated(attr);
/* setting the GW selection class is allowed only if the routing
* algorithm in use implements the GW API
*/
if (!bat_priv->algo_ops->gw.get_best_gw_node ||
!bat_priv->algo_ops->gw.is_eligible)
return -EINVAL;
if (buff[count - 1] == '\n')
buff[count - 1] = '\0';
if (bat_priv->algo_ops->gw.store_sel_class)
return bat_priv->algo_ops->gw.store_sel_class(bat_priv, buff,
count);
length = __batadv_store_uint_attr(buff, count, 1, BATADV_TQ_MAX_VALUE,
batadv_post_gw_reselect, attr,
&bat_priv->gw.sel_class,
bat_priv->soft_iface, NULL);
batadv_netlink_notify_mesh(bat_priv);
return length;
}
static ssize_t batadv_show_gw_bwidth(struct kobject *kobj,
struct attribute *attr, char *buff)
{
struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj);
u32 down, up;
batadv_sysfs_deprecated(attr);
down = atomic_read(&bat_priv->gw.bandwidth_down);
up = atomic_read(&bat_priv->gw.bandwidth_up);
return sprintf(buff, "%u.%u/%u.%u MBit\n", down / 10,
down % 10, up / 10, up % 10);
}
static ssize_t batadv_store_gw_bwidth(struct kobject *kobj,
struct attribute *attr, char *buff,
size_t count)
{
struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj);
struct net_device *net_dev = batadv_kobj_to_netdev(kobj);
ssize_t length;
batadv_sysfs_deprecated(attr);
if (buff[count - 1] == '\n')
buff[count - 1] = '\0';
length = batadv_gw_bandwidth_set(net_dev, buff, count);
batadv_netlink_notify_mesh(bat_priv);
return length;
}
/**
* batadv_show_isolation_mark() - print the current isolation mark/mask
* @kobj: kobject representing the private mesh sysfs directory
* @attr: the batman-adv attribute the user is interacting with
* @buff: the buffer that will contain the data to send back to the user
*
* Return: the number of bytes written into 'buff' on success or a negative
* error code in case of failure
*/
static ssize_t batadv_show_isolation_mark(struct kobject *kobj,
struct attribute *attr, char *buff)
{
struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj);
batadv_sysfs_deprecated(attr);
return sprintf(buff, "%#.8x/%#.8x\n", bat_priv->isolation_mark,
bat_priv->isolation_mark_mask);
}
/**
* batadv_store_isolation_mark() - parse and store the isolation mark/mask
* entered by the user
* @kobj: kobject representing the private mesh sysfs directory
* @attr: the batman-adv attribute the user is interacting with
* @buff: the buffer containing the user data
* @count: number of bytes in the buffer
*
* Return: 'count' on success or a negative error code in case of failure
*/
static ssize_t batadv_store_isolation_mark(struct kobject *kobj,
struct attribute *attr, char *buff,
size_t count)
{
struct net_device *net_dev = batadv_kobj_to_netdev(kobj);
struct batadv_priv *bat_priv = netdev_priv(net_dev);
u32 mark, mask;
char *mask_ptr;
batadv_sysfs_deprecated(attr);
/* parse the mask if it has been specified, otherwise assume the mask is
* the biggest possible
*/
mask = 0xFFFFFFFF;
mask_ptr = strchr(buff, '/');
if (mask_ptr) {
*mask_ptr = '\0';
mask_ptr++;
/* the mask must be entered in hex base as it is going to be a
* bitmask and not a prefix length
*/
if (kstrtou32(mask_ptr, 16, &mask) < 0)
return -EINVAL;
}
/* the mark can be entered in any base */
if (kstrtou32(buff, 0, &mark) < 0)
return -EINVAL;
bat_priv->isolation_mark_mask = mask;
/* erase bits not covered by the mask */
bat_priv->isolation_mark = mark & bat_priv->isolation_mark_mask;
batadv_info(net_dev,
"New skb mark for extended isolation: %#.8x/%#.8x\n",
bat_priv->isolation_mark, bat_priv->isolation_mark_mask);
batadv_netlink_notify_mesh(bat_priv);
return count;
}
BATADV_ATTR_SIF_BOOL(aggregated_ogms, 0644, NULL);
BATADV_ATTR_SIF_BOOL(bonding, 0644, NULL);
#ifdef CONFIG_BATMAN_ADV_BLA
BATADV_ATTR_SIF_BOOL(bridge_loop_avoidance, 0644, batadv_bla_status_update);
#endif
#ifdef CONFIG_BATMAN_ADV_DAT
BATADV_ATTR_SIF_BOOL(distributed_arp_table, 0644, batadv_dat_status_update);
#endif
BATADV_ATTR_SIF_BOOL(fragmentation, 0644, batadv_update_min_mtu);
static BATADV_ATTR(routing_algo, 0444, batadv_show_bat_algo, NULL);
static BATADV_ATTR(gw_mode, 0644, batadv_show_gw_mode, batadv_store_gw_mode);
BATADV_ATTR_SIF_UINT(orig_interval, orig_interval, 0644, 2 * BATADV_JITTER,
INT_MAX, NULL);
BATADV_ATTR_SIF_UINT(hop_penalty, hop_penalty, 0644, 0, BATADV_TQ_MAX_VALUE,
NULL);
static BATADV_ATTR(gw_sel_class, 0644, batadv_show_gw_sel_class,
batadv_store_gw_sel_class);
static BATADV_ATTR(gw_bandwidth, 0644, batadv_show_gw_bwidth,
batadv_store_gw_bwidth);
#ifdef CONFIG_BATMAN_ADV_MCAST
BATADV_ATTR_SIF_BOOL(multicast_mode, 0644, NULL);
#endif
#ifdef CONFIG_BATMAN_ADV_DEBUG
BATADV_ATTR_SIF_UINT(log_level, log_level, 0644, 0, BATADV_DBG_ALL, NULL);
#endif
#ifdef CONFIG_BATMAN_ADV_NC
BATADV_ATTR_SIF_BOOL(network_coding, 0644, batadv_nc_status_update);
#endif
static BATADV_ATTR(isolation_mark, 0644, batadv_show_isolation_mark,
batadv_store_isolation_mark);
static struct batadv_attribute *batadv_mesh_attrs[] = {
&batadv_attr_aggregated_ogms,
&batadv_attr_bonding,
#ifdef CONFIG_BATMAN_ADV_BLA
&batadv_attr_bridge_loop_avoidance,
#endif
#ifdef CONFIG_BATMAN_ADV_DAT
&batadv_attr_distributed_arp_table,
#endif
#ifdef CONFIG_BATMAN_ADV_MCAST
&batadv_attr_multicast_mode,
#endif
&batadv_attr_fragmentation,
&batadv_attr_routing_algo,
&batadv_attr_gw_mode,
&batadv_attr_orig_interval,
&batadv_attr_hop_penalty,
&batadv_attr_gw_sel_class,
&batadv_attr_gw_bandwidth,
#ifdef CONFIG_BATMAN_ADV_DEBUG
&batadv_attr_log_level,
#endif
#ifdef CONFIG_BATMAN_ADV_NC
&batadv_attr_network_coding,
#endif
&batadv_attr_isolation_mark,
NULL,
};
BATADV_ATTR_VLAN_BOOL(ap_isolation, 0644, NULL);
/* array of vlan specific sysfs attributes */
static struct batadv_attribute *batadv_vlan_attrs[] = {
&batadv_attr_vlan_ap_isolation,
NULL,
};
/**
* batadv_sysfs_add_meshif() - Add soft interface specific sysfs entries
* @dev: netdev struct of the soft interface
*
* Return: 0 on success or negative error number in case of failure
*/
int batadv_sysfs_add_meshif(struct net_device *dev)
{
struct kobject *batif_kobject = &dev->dev.kobj;
struct batadv_priv *bat_priv = netdev_priv(dev);
struct batadv_attribute **bat_attr;
int err;
bat_priv->mesh_obj = kobject_create_and_add(BATADV_SYSFS_IF_MESH_SUBDIR,
batif_kobject);
if (!bat_priv->mesh_obj) {
batadv_err(dev, "Can't add sysfs directory: %s/%s\n", dev->name,
BATADV_SYSFS_IF_MESH_SUBDIR);
goto out;
}
for (bat_attr = batadv_mesh_attrs; *bat_attr; ++bat_attr) {
err = sysfs_create_file(bat_priv->mesh_obj,
&((*bat_attr)->attr));
if (err) {
batadv_err(dev, "Can't add sysfs file: %s/%s/%s\n",
dev->name, BATADV_SYSFS_IF_MESH_SUBDIR,
((*bat_attr)->attr).name);
goto rem_attr;
}
}
return 0;
rem_attr:
for (bat_attr = batadv_mesh_attrs; *bat_attr; ++bat_attr)
sysfs_remove_file(bat_priv->mesh_obj, &((*bat_attr)->attr));
kobject_uevent(bat_priv->mesh_obj, KOBJ_REMOVE);
kobject_del(bat_priv->mesh_obj);
kobject_put(bat_priv->mesh_obj);
bat_priv->mesh_obj = NULL;
out:
return -ENOMEM;
}
/**
* batadv_sysfs_del_meshif() - Remove soft interface specific sysfs entries
* @dev: netdev struct of the soft interface
*/
void batadv_sysfs_del_meshif(struct net_device *dev)
{
struct batadv_priv *bat_priv = netdev_priv(dev);
struct batadv_attribute **bat_attr;
for (bat_attr = batadv_mesh_attrs; *bat_attr; ++bat_attr)
sysfs_remove_file(bat_priv->mesh_obj, &((*bat_attr)->attr));
kobject_uevent(bat_priv->mesh_obj, KOBJ_REMOVE);
kobject_del(bat_priv->mesh_obj);
kobject_put(bat_priv->mesh_obj);
bat_priv->mesh_obj = NULL;
}
/**
* batadv_sysfs_add_vlan() - add all the needed sysfs objects for the new vlan
* @dev: netdev of the mesh interface
* @vlan: private data of the newly added VLAN interface
*
* Return: 0 on success and -ENOMEM if any of the structure allocations fails.
*/
int batadv_sysfs_add_vlan(struct net_device *dev,
struct batadv_softif_vlan *vlan)
{
char vlan_subdir[sizeof(BATADV_SYSFS_VLAN_SUBDIR_PREFIX) + 5];
struct batadv_priv *bat_priv = netdev_priv(dev);
struct batadv_attribute **bat_attr;
int err;
if (vlan->vid & BATADV_VLAN_HAS_TAG) {
sprintf(vlan_subdir, BATADV_SYSFS_VLAN_SUBDIR_PREFIX "%hu",
vlan->vid & VLAN_VID_MASK);
vlan->kobj = kobject_create_and_add(vlan_subdir,
bat_priv->mesh_obj);
if (!vlan->kobj) {
batadv_err(dev, "Can't add sysfs directory: %s/%s\n",
dev->name, vlan_subdir);
goto out;
}
} else {
/* the untagged LAN uses the root folder to store its "VLAN
* specific attributes"
*/
vlan->kobj = bat_priv->mesh_obj;
kobject_get(bat_priv->mesh_obj);
}
for (bat_attr = batadv_vlan_attrs; *bat_attr; ++bat_attr) {
err = sysfs_create_file(vlan->kobj,
&((*bat_attr)->attr));
if (err) {
batadv_err(dev, "Can't add sysfs file: %s/%s/%s\n",
dev->name, vlan_subdir,
((*bat_attr)->attr).name);
goto rem_attr;
}
}
return 0;
rem_attr:
for (bat_attr = batadv_vlan_attrs; *bat_attr; ++bat_attr)
sysfs_remove_file(vlan->kobj, &((*bat_attr)->attr));
if (vlan->kobj != bat_priv->mesh_obj) {
kobject_uevent(vlan->kobj, KOBJ_REMOVE);
kobject_del(vlan->kobj);
}
kobject_put(vlan->kobj);
vlan->kobj = NULL;
out:
return -ENOMEM;
}
/**
* batadv_sysfs_del_vlan() - remove all the sysfs objects for a given VLAN
* @bat_priv: the bat priv with all the soft interface information
* @vlan: the private data of the VLAN to destroy
*/
void batadv_sysfs_del_vlan(struct batadv_priv *bat_priv,
struct batadv_softif_vlan *vlan)
{
struct batadv_attribute **bat_attr;
for (bat_attr = batadv_vlan_attrs; *bat_attr; ++bat_attr)
sysfs_remove_file(vlan->kobj, &((*bat_attr)->attr));
if (vlan->kobj != bat_priv->mesh_obj) {
kobject_uevent(vlan->kobj, KOBJ_REMOVE);
kobject_del(vlan->kobj);
}
kobject_put(vlan->kobj);
vlan->kobj = NULL;
}
static ssize_t batadv_show_mesh_iface(struct kobject *kobj,
struct attribute *attr, char *buff)
{
struct net_device *net_dev = batadv_kobj_to_netdev(kobj);
struct batadv_hard_iface *hard_iface;
ssize_t length;
const char *ifname;
batadv_sysfs_deprecated(attr);
hard_iface = batadv_hardif_get_by_netdev(net_dev);
if (!hard_iface)
return 0;
if (hard_iface->if_status == BATADV_IF_NOT_IN_USE)
ifname = "none";
else
ifname = hard_iface->soft_iface->name;
length = sprintf(buff, "%s\n", ifname);
batadv_hardif_put(hard_iface);
return length;
}
/**
* batadv_store_mesh_iface_finish() - store new hardif mesh_iface state
* @net_dev: netdevice to add/remove to/from batman-adv soft-interface
* @ifname: name of soft-interface to modify
*
* Changes the parts of the hard+soft interface which can not be modified under
* sysfs lock (to prevent deadlock situations).
*
* Return: 0 on success, 0 < on failure
*/
static int batadv_store_mesh_iface_finish(struct net_device *net_dev,
char ifname[IFNAMSIZ])
{
struct net *net = dev_net(net_dev);
struct batadv_hard_iface *hard_iface;
int status_tmp;
int ret = 0;
ASSERT_RTNL();
hard_iface = batadv_hardif_get_by_netdev(net_dev);
if (!hard_iface)
return 0;
if (strncmp(ifname, "none", 4) == 0)
status_tmp = BATADV_IF_NOT_IN_USE;
else
status_tmp = BATADV_IF_I_WANT_YOU;
if (hard_iface->if_status == status_tmp)
goto out;
if (hard_iface->soft_iface &&
strncmp(hard_iface->soft_iface->name, ifname, IFNAMSIZ) == 0)
goto out;
if (status_tmp == BATADV_IF_NOT_IN_USE) {
batadv_hardif_disable_interface(hard_iface,
BATADV_IF_CLEANUP_AUTO);
goto out;
}
/* if the interface already is in use */
if (hard_iface->if_status != BATADV_IF_NOT_IN_USE)
batadv_hardif_disable_interface(hard_iface,
BATADV_IF_CLEANUP_AUTO);
ret = batadv_hardif_enable_interface(hard_iface, net, ifname);
out:
batadv_hardif_put(hard_iface);
return ret;
}
/**
* batadv_store_mesh_iface_work() - store new hardif mesh_iface state
* @work: work queue item
*
* Changes the parts of the hard+soft interface which can not be modified under
* sysfs lock (to prevent deadlock situations).
*/
static void batadv_store_mesh_iface_work(struct work_struct *work)
{
struct batadv_store_mesh_work *store_work;
int ret;
store_work = container_of(work, struct batadv_store_mesh_work, work);
rtnl_lock();
ret = batadv_store_mesh_iface_finish(store_work->net_dev,
store_work->soft_iface_name);
rtnl_unlock();
if (ret < 0)
pr_err("Failed to store new mesh_iface state %s for %s: %d\n",
store_work->soft_iface_name, store_work->net_dev->name,
ret);
dev_put(store_work->net_dev);
kfree(store_work);
}
static ssize_t batadv_store_mesh_iface(struct kobject *kobj,
struct attribute *attr, char *buff,
size_t count)
{
struct net_device *net_dev = batadv_kobj_to_netdev(kobj);
struct batadv_store_mesh_work *store_work;
batadv_sysfs_deprecated(attr);
if (buff[count - 1] == '\n')
buff[count - 1] = '\0';
if (strlen(buff) >= IFNAMSIZ) {
pr_err("Invalid parameter for 'mesh_iface' setting received: interface name too long '%s'\n",
buff);
return -EINVAL;
}
store_work = kmalloc(sizeof(*store_work), GFP_KERNEL);
if (!store_work)
return -ENOMEM;
dev_hold(net_dev);
INIT_WORK(&store_work->work, batadv_store_mesh_iface_work);
store_work->net_dev = net_dev;
strscpy(store_work->soft_iface_name, buff,
sizeof(store_work->soft_iface_name));
queue_work(batadv_event_workqueue, &store_work->work);
return count;
}
static ssize_t batadv_show_iface_status(struct kobject *kobj,
struct attribute *attr, char *buff)
{
struct net_device *net_dev = batadv_kobj_to_netdev(kobj);
struct batadv_hard_iface *hard_iface;
ssize_t length;
batadv_sysfs_deprecated(attr);
hard_iface = batadv_hardif_get_by_netdev(net_dev);
if (!hard_iface)
return 0;
switch (hard_iface->if_status) {
case BATADV_IF_TO_BE_REMOVED:
length = sprintf(buff, "disabling\n");
break;
case BATADV_IF_INACTIVE:
length = sprintf(buff, "inactive\n");
break;
case BATADV_IF_ACTIVE:
length = sprintf(buff, "active\n");
break;
case BATADV_IF_TO_BE_ACTIVATED:
length = sprintf(buff, "enabling\n");
break;
case BATADV_IF_NOT_IN_USE:
default:
length = sprintf(buff, "not in use\n");
break;
}
batadv_hardif_put(hard_iface);
return length;
}
#ifdef CONFIG_BATMAN_ADV_BATMAN_V
/**
* batadv_store_throughput_override() - parse and store throughput override
* entered by the user
* @kobj: kobject representing the private mesh sysfs directory
* @attr: the batman-adv attribute the user is interacting with
* @buff: the buffer containing the user data
* @count: number of bytes in the buffer
*
* Return: 'count' on success or a negative error code in case of failure
*/
static ssize_t batadv_store_throughput_override(struct kobject *kobj,
struct attribute *attr,
char *buff, size_t count)
{
struct net_device *net_dev = batadv_kobj_to_netdev(kobj);
struct batadv_hard_iface *hard_iface;
struct batadv_priv *bat_priv;
u32 tp_override;
u32 old_tp_override;
bool ret;
batadv_sysfs_deprecated(attr);
hard_iface = batadv_hardif_get_by_netdev(net_dev);
if (!hard_iface)
return -EINVAL;
if (buff[count - 1] == '\n')
buff[count - 1] = '\0';
ret = batadv_parse_throughput(net_dev, buff, "throughput_override",
&tp_override);
if (!ret)
goto out;
old_tp_override = atomic_read(&hard_iface->bat_v.throughput_override);
if (old_tp_override == tp_override)
goto out;
batadv_info(hard_iface->soft_iface,
"%s: %s: Changing from: %u.%u MBit to: %u.%u MBit\n",
"throughput_override", net_dev->name,
old_tp_override / 10, old_tp_override % 10,
tp_override / 10, tp_override % 10);
atomic_set(&hard_iface->bat_v.throughput_override, tp_override);
if (hard_iface->soft_iface) {
bat_priv = netdev_priv(hard_iface->soft_iface);
batadv_netlink_notify_hardif(bat_priv, hard_iface);
}
out:
batadv_hardif_put(hard_iface);
return count;
}
static ssize_t batadv_show_throughput_override(struct kobject *kobj,
struct attribute *attr,
char *buff)
{
struct net_device *net_dev = batadv_kobj_to_netdev(kobj);
struct batadv_hard_iface *hard_iface;
u32 tp_override;
batadv_sysfs_deprecated(attr);
hard_iface = batadv_hardif_get_by_netdev(net_dev);
if (!hard_iface)
return -EINVAL;
tp_override = atomic_read(&hard_iface->bat_v.throughput_override);
batadv_hardif_put(hard_iface);
return sprintf(buff, "%u.%u MBit\n", tp_override / 10,
tp_override % 10);
}
#endif
static BATADV_ATTR(mesh_iface, 0644, batadv_show_mesh_iface,
batadv_store_mesh_iface);
static BATADV_ATTR(iface_status, 0444, batadv_show_iface_status, NULL);
#ifdef CONFIG_BATMAN_ADV_BATMAN_V
BATADV_ATTR_HIF_UINT(elp_interval, bat_v.elp_interval, 0644,
2 * BATADV_JITTER, INT_MAX, NULL);
static BATADV_ATTR(throughput_override, 0644, batadv_show_throughput_override,
batadv_store_throughput_override);
#endif
static struct batadv_attribute *batadv_batman_attrs[] = {
&batadv_attr_mesh_iface,
&batadv_attr_iface_status,
#ifdef CONFIG_BATMAN_ADV_BATMAN_V
&batadv_attr_elp_interval,
&batadv_attr_throughput_override,
#endif
NULL,
};
/**
* batadv_sysfs_add_hardif() - Add hard interface specific sysfs entries
* @hardif_obj: address where to store the pointer to new sysfs folder
* @dev: netdev struct of the hard interface
*
* Return: 0 on success or negative error number in case of failure
*/
int batadv_sysfs_add_hardif(struct kobject **hardif_obj, struct net_device *dev)
{
struct kobject *hardif_kobject = &dev->dev.kobj;
struct batadv_attribute **bat_attr;
int err;
*hardif_obj = kobject_create_and_add(BATADV_SYSFS_IF_BAT_SUBDIR,
hardif_kobject);
if (!*hardif_obj) {
batadv_err(dev, "Can't add sysfs directory: %s/%s\n", dev->name,
BATADV_SYSFS_IF_BAT_SUBDIR);
goto out;
}
for (bat_attr = batadv_batman_attrs; *bat_attr; ++bat_attr) {
err = sysfs_create_file(*hardif_obj, &((*bat_attr)->attr));
if (err) {
batadv_err(dev, "Can't add sysfs file: %s/%s/%s\n",
dev->name, BATADV_SYSFS_IF_BAT_SUBDIR,
((*bat_attr)->attr).name);
goto rem_attr;
}
}
return 0;
rem_attr:
for (bat_attr = batadv_batman_attrs; *bat_attr; ++bat_attr)
sysfs_remove_file(*hardif_obj, &((*bat_attr)->attr));
out:
return -ENOMEM;
}
/**
* batadv_sysfs_del_hardif() - Remove hard interface specific sysfs entries
* @hardif_obj: address to the pointer to which stores batman-adv sysfs folder
* of the hard interface
*/
void batadv_sysfs_del_hardif(struct kobject **hardif_obj)
{
kobject_uevent(*hardif_obj, KOBJ_REMOVE);
kobject_del(*hardif_obj);
kobject_put(*hardif_obj);
*hardif_obj = NULL;
}
net/batman-adv/sysfs.h deleted 100644 → 0
View file @ a5ad457e
/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright (C) 2010-2020 B.A.T.M.A.N. contributors:
*
* Marek Lindner
*/
#ifndef _NET_BATMAN_ADV_SYSFS_H_
#define _NET_BATMAN_ADV_SYSFS_H_
#include "main.h"
#include <linux/kobject.h>
#include <linux/netdevice.h>
#include <linux/sysfs.h>
#include <linux/types.h>
#define BATADV_SYSFS_IF_MESH_SUBDIR "mesh"
#define BATADV_SYSFS_IF_BAT_SUBDIR "batman_adv"
/**
* BATADV_SYSFS_VLAN_SUBDIR_PREFIX - prefix of the subfolder that will be
* created in the sysfs hierarchy for each VLAN interface. The subfolder will
* be named "BATADV_SYSFS_VLAN_SUBDIR_PREFIX%vid".
*/
#define BATADV_SYSFS_VLAN_SUBDIR_PREFIX "vlan"
/**
* struct batadv_attribute - sysfs export helper for batman-adv attributes
*/
struct batadv_attribute {
/** @attr: sysfs attribute file */
struct attribute attr;
/**
* @show: function to export the current attribute's content to sysfs
*/
ssize_t (*show)(struct kobject *kobj, struct attribute *attr,
char *buf);
/**
* @store: function to load new value from character buffer and save it
* in batman-adv attribute
*/
ssize_t (*store)(struct kobject *kobj, struct attribute *attr,
char *buf, size_t count);
};
#ifdef CONFIG_BATMAN_ADV_SYSFS
int batadv_sysfs_add_meshif(struct net_device *dev);
void batadv_sysfs_del_meshif(struct net_device *dev);
int batadv_sysfs_add_hardif(struct kobject **hardif_obj,
struct net_device *dev);
void batadv_sysfs_del_hardif(struct kobject **hardif_obj);
int batadv_sysfs_add_vlan(struct net_device *dev,
struct batadv_softif_vlan *vlan);
void batadv_sysfs_del_vlan(struct batadv_priv *bat_priv,
struct batadv_softif_vlan *vlan);
#else
static inline int batadv_sysfs_add_meshif(struct net_device *dev)
{
return 0;
}
static inline void batadv_sysfs_del_meshif(struct net_device *dev)
{
}
static inline int batadv_sysfs_add_hardif(struct kobject **hardif_obj,
struct net_device *dev)
{
return 0;
}
static inline void batadv_sysfs_del_hardif(struct kobject **hardif_obj)
{
}
static inline int batadv_sysfs_add_vlan(struct net_device *dev,
struct batadv_softif_vlan *vlan)
{
return 0;
}
static inline void batadv_sysfs_del_vlan(struct batadv_priv *bat_priv,
struct batadv_softif_vlan *vlan)
{
}
#endif
#endif /* _NET_BATMAN_ADV_SYSFS_H_ */
net/batman-adv/types.h
View file @ 76e9f276
......@@ -187,9 +187,6 @@ struct batadv_hard_iface {
/** @net_dev: pointer to the net_device */
struct net_device *net_dev;
/** @hardif_obj: kobject of the per interface sysfs "mesh" directory */
struct kobject *hardif_obj;
/** @refcount: number of contexts the object is used */
struct kref refcount;
......@@ -1512,9 +1509,6 @@ struct batadv_softif_vlan {
/** @vid: VLAN identifier */
unsigned short vid;
/** @kobj: kobject for sysfs vlan subdirectory */
struct kobject *kobj;
/** @ap_isolation: AP isolation state */
atomic_t ap_isolation; /* boolean */
......@@ -1667,9 +1661,6 @@ struct batadv_priv {
/** @batman_queue_left: number of remaining OGM packet slots */
atomic_t batman_queue_left;
/** @mesh_obj: kobject for sysfs mesh subdirectory */
struct kobject *mesh_obj;
#ifdef CONFIG_BATMAN_ADV_DEBUGFS
/** @debug_dir: dentry for debugfs batman-adv subdirectory */
struct dentry *debug_dir;
......@@ -2274,10 +2265,6 @@ struct batadv_algo_gw_ops {
*/
ssize_t (*store_sel_class)(struct batadv_priv *bat_priv, char *buff,
size_t count);
/** @show_sel_class: prints the current GW selection class (optional) */
ssize_t (*show_sel_class)(struct batadv_priv *bat_priv, char *buff);
/**
* @get_best_gw_node: select the best GW from the list of available
* nodes (optional)
......@@ -2456,21 +2443,4 @@ enum batadv_tvlv_handler_flags {
BATADV_TVLV_HANDLER_OGM_CALLED = BIT(2),
};
/**
* struct batadv_store_mesh_work - Work queue item to detach add/del interface
* from sysfs locks
*/
struct batadv_store_mesh_work {
/**
* @net_dev: netdevice to add/remove to/from batman-adv soft-interface
*/
struct net_device *net_dev;
/** @soft_iface_name: name of soft-interface to modify */
char soft_iface_name[IFNAMSIZ];
/** @work: work queue item */
struct work_struct work;
};
#endif /* _NET_BATMAN_ADV_TYPES_H_ */
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