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batman-adv: Trigger genl notification on sysfs config change

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The generic netlink code is expected to trigger notification messages when
configuration might have been changed. But the configuration of batman-adv
is most of the time still done using sysfs. So the sysfs interface should
also trigger the corresponding netlink messages via the "config" multicast
group.

Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Simon Wunderlich <sw@simonwunderlich.de>
This commit is contained in:
Sven Eckelmann 2018-11-23 16:07:12 +01:00 committed by Simon Wunderlich
parent 9a182242f1
commit 7e6f461efe
3 changed files with 63 additions and 16 deletions
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6
net/batman-adv/netlink.c
View File

@ -385,7 +385,7 @@ nla_put_failure:
*
* Return: 0 on success, < 0 on error
*/
static int batadv_netlink_notify_mesh(struct batadv_priv *bat_priv)
int batadv_netlink_notify_mesh(struct batadv_priv *bat_priv)
{
struct sk_buff *msg;
int ret;
@ -852,7 +852,7 @@ nla_put_failure:
*
* Return: 0 on success, < 0 on error
*/
static int batadv_netlink_notify_hardif(struct batadv_priv *bat_priv,
int batadv_netlink_notify_hardif(struct batadv_priv *bat_priv,
struct batadv_hard_iface *hard_iface)
{
struct sk_buff *msg;
@ -1057,7 +1057,7 @@ nla_put_failure:
*
* Return: 0 on success, < 0 on error
*/
static int batadv_netlink_notify_vlan(struct batadv_priv *bat_priv,
int batadv_netlink_notify_vlan(struct batadv_priv *bat_priv,
struct batadv_softif_vlan *vlan)
{
struct sk_buff *msg;

6
net/batman-adv/netlink.h
View File

@ -34,6 +34,12 @@ int batadv_netlink_tpmeter_notify(struct batadv_priv *bat_priv, const u8 *dst,
u8 result, u32 test_time, u64 total_bytes,
u32 cookie);
int batadv_netlink_notify_mesh(struct batadv_priv *bat_priv);
int batadv_netlink_notify_hardif(struct batadv_priv *bat_priv,
struct batadv_hard_iface *hard_iface);
int batadv_netlink_notify_vlan(struct batadv_priv *bat_priv,
struct batadv_softif_vlan *vlan);
extern struct genl_family batadv_netlink_family;
#endif /* _NET_BATMAN_ADV_NETLINK_H_ */

49
net/batman-adv/sysfs.c
View File

@ -48,6 +48,7 @@
#include "gateway_common.h"
#include "hard-interface.h"
#include "log.h"
#include "netlink.h"
#include "network-coding.h"
#include "soft-interface.h"
@ -154,9 +155,14 @@ ssize_t batadv_store_##_name(struct kobject *kobj, \
{ \
struct net_device *net_dev = batadv_kobj_to_netdev(kobj); \
struct batadv_priv *bat_priv = netdev_priv(net_dev); \
ssize_t length; \
\
return __batadv_store_bool_attr(buff, count, _post_func, 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) \
@ -186,11 +192,16 @@ ssize_t batadv_store_##_name(struct kobject *kobj, \
{ \
struct net_device *net_dev = batadv_kobj_to_netdev(kobj); \
struct batadv_priv *bat_priv = netdev_priv(net_dev); \
ssize_t length; \
\
return __batadv_store_uint_attr(buff, count, _min, _max, \
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) \
@ -223,6 +234,11 @@ ssize_t batadv_store_vlan_##_name(struct kobject *kobj, \
attr, &vlan->_name, \
bat_priv->soft_iface); \
\
if (vlan->vid) \
batadv_netlink_notify_vlan(bat_priv, vlan); \
else \
batadv_netlink_notify_mesh(bat_priv); \
\
batadv_softif_vlan_put(vlan); \
return res; \
}
@ -256,6 +272,7 @@ ssize_t batadv_store_##_name(struct kobject *kobj, \
{ \
struct net_device *net_dev = batadv_kobj_to_netdev(kobj); \
struct batadv_hard_iface *hard_iface; \
struct batadv_priv *bat_priv; \
ssize_t length; \
\
hard_iface = batadv_hardif_get_by_netdev(net_dev); \
@ -268,6 +285,11 @@ ssize_t batadv_store_##_name(struct kobject *kobj, \
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; \
}
@ -537,6 +559,9 @@ static ssize_t batadv_store_gw_mode(struct kobject *kobj,
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;
}
@ -563,6 +588,7 @@ static ssize_t batadv_store_gw_sel_class(struct kobject *kobj,
size_t count)
{
struct batadv_priv *bat_priv = batadv_kobj_to_batpriv(kobj);
ssize_t length;
/* setting the GW selection class is allowed only if the routing
* algorithm in use implements the GW API
@ -578,10 +604,14 @@ static ssize_t batadv_store_gw_sel_class(struct kobject *kobj,
return bat_priv->algo_ops->gw.store_sel_class(bat_priv, buff,
count);
return __batadv_store_uint_attr(buff, count, 1, BATADV_TQ_MAX_VALUE,
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,
@ -601,12 +631,18 @@ 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;
if (buff[count - 1] == '\n')
buff[count - 1] = '\0';
return batadv_gw_bandwidth_set(net_dev, buff, count);
length = batadv_gw_bandwidth_set(net_dev, buff, count);
batadv_netlink_notify_mesh(bat_priv);
return length;
}
/**
@ -674,6 +710,8 @@ static ssize_t batadv_store_isolation_mark(struct kobject *kobj,
"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;
}
@ -1078,6 +1116,7 @@ static ssize_t batadv_store_throughput_override(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);
struct batadv_hard_iface *hard_iface;
u32 tp_override;
@ -1108,6 +1147,8 @@ static ssize_t batadv_store_throughput_override(struct kobject *kobj,
atomic_set(&hard_iface->bat_v.throughput_override, tp_override);
batadv_netlink_notify_hardif(bat_priv, hard_iface);
out:
batadv_hardif_put(hard_iface);
return count;