Merge tag 'batadv-next-for-davem-20190213' of git://git.open-mesh.org/linux-merge

Simon Wunderlich says:

====================
This feature/cleanup patchset includes the following patches:

 - fix memory leak in in batadv_dat_put_dhcp, by Martin Weinelt

 - fix typo, by Sven Eckelmann

 - netlink restructuring patch series (part 2), by Sven Eckelmann
   (19 patches)
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

include/uapi/linux/batadv_packet.h

@@ -229,7 +229,7 @@ struct batadv_ogm_packet {
  * @packet_type: batman-adv packet type, part of the general header
  * @version: batman-adv protocol version, part of the general header
  * @ttl: time to live for this packet, part of the general header
- * @flags: reseved for routing relevant flags - currently always 0
+ * @flags: reserved for routing relevant flags - currently always 0
  * @seqno: sequence number
  * @orig: originator mac address
  * @tvlv_len: length of the appended tvlv buffer (in bytes)

include/uapi/linux/batman_adv.h

@@ -27,6 +27,7 @@
 
 #define BATADV_NL_NAME "batadv"
 
+#define BATADV_NL_MCAST_GROUP_CONFIG	"config"
 #define BATADV_NL_MCAST_GROUP_TPMETER	"tpmeter"
 
 /**
@@ -138,6 +139,20 @@ enum batadv_mcast_flags_priv {
 	BATADV_MCAST_FLAGS_QUERIER_IPV6_SHADOWING	= (1 << 4),
 };
 
+/**
+ * enum batadv_gw_modes - gateway mode of node
+ */
+enum batadv_gw_modes {
+	/** @BATADV_GW_MODE_OFF: gw mode disabled */
+	BATADV_GW_MODE_OFF,
+
+	/** @BATADV_GW_MODE_CLIENT: send DHCP requests to gw servers */
+	BATADV_GW_MODE_CLIENT,
+
+	/** @BATADV_GW_MODE_SERVER: announce itself as gatway server */
+	BATADV_GW_MODE_SERVER,
+};
+
 /**
  * enum batadv_nl_attrs - batman-adv netlink attributes
  */
@@ -344,6 +359,138 @@ enum batadv_nl_attrs {
 	 */
 	BATADV_ATTR_MCAST_FLAGS_PRIV,
 
+	/**
+	 * @BATADV_ATTR_VLANID: VLAN id on top of soft interface
+	 */
+	BATADV_ATTR_VLANID,
+
+	/**
+	 * @BATADV_ATTR_AGGREGATED_OGMS_ENABLED: whether the batman protocol
+	 *  messages of the mesh interface shall be aggregated or not.
+	 */
+	BATADV_ATTR_AGGREGATED_OGMS_ENABLED,
+
+	/**
+	 * @BATADV_ATTR_AP_ISOLATION_ENABLED: whether the data traffic going
+	 *  from a wireless client to another wireless client will be silently
+	 *  dropped.
+	 */
+	BATADV_ATTR_AP_ISOLATION_ENABLED,
+
+	/**
+	 * @BATADV_ATTR_ISOLATION_MARK: the isolation mark which is used to
+	 *  classify clients as "isolated" by the Extended Isolation feature.
+	 */
+	BATADV_ATTR_ISOLATION_MARK,
+
+	/**
+	 * @BATADV_ATTR_ISOLATION_MASK: the isolation (bit)mask which is used to
+	 *  classify clients as "isolated" by the Extended Isolation feature.
+	 */
+	BATADV_ATTR_ISOLATION_MASK,
+
+	/**
+	 * @BATADV_ATTR_BONDING_ENABLED: whether the data traffic going through
+	 *  the mesh will be sent using multiple interfaces at the same time.
+	 */
+	BATADV_ATTR_BONDING_ENABLED,
+
+	/**
+	 * @BATADV_ATTR_BRIDGE_LOOP_AVOIDANCE_ENABLED: whether the bridge loop
+	 *  avoidance feature is enabled. This feature detects and avoids loops
+	 *  between the mesh and devices bridged with the soft interface
+	 */
+	BATADV_ATTR_BRIDGE_LOOP_AVOIDANCE_ENABLED,
+
+	/**
+	 * @BATADV_ATTR_DISTRIBUTED_ARP_TABLE_ENABLED: whether the distributed
+	 *  arp table feature is enabled. This feature uses a distributed hash
+	 *  table to answer ARP requests without flooding the request through
+	 *  the whole mesh.
+	 */
+	BATADV_ATTR_DISTRIBUTED_ARP_TABLE_ENABLED,
+
+	/**
+	 * @BATADV_ATTR_FRAGMENTATION_ENABLED: whether the data traffic going
+	 *  through the mesh will be fragmented or silently discarded if the
+	 *  packet size exceeds the outgoing interface MTU.
+	 */
+	BATADV_ATTR_FRAGMENTATION_ENABLED,
+
+	/**
+	 * @BATADV_ATTR_GW_BANDWIDTH_DOWN: defines the download bandwidth which
+	 *  is propagated by this node if %BATADV_ATTR_GW_BANDWIDTH_MODE was set
+	 *  to 'server'.
+	 */
+	BATADV_ATTR_GW_BANDWIDTH_DOWN,
+
+	/**
+	 * @BATADV_ATTR_GW_BANDWIDTH_UP: defines the upload bandwidth which
+	 *  is propagated by this node if %BATADV_ATTR_GW_BANDWIDTH_MODE was set
+	 *  to 'server'.
+	 */
+	BATADV_ATTR_GW_BANDWIDTH_UP,
+
+	/**
+	 * @BATADV_ATTR_GW_MODE: defines the state of the gateway features.
+	 * Possible values are specified in enum batadv_gw_modes
+	 */
+	BATADV_ATTR_GW_MODE,
+
+	/**
+	 * @BATADV_ATTR_GW_SEL_CLASS: defines the selection criteria this node
+	 *  will use to choose a gateway if gw_mode was set to 'client'.
+	 */
+	BATADV_ATTR_GW_SEL_CLASS,
+
+	/**
+	 * @BATADV_ATTR_HOP_PENALTY: defines the penalty which will be applied
+	 *  to an originator message's tq-field on every hop.
+	 */
+	BATADV_ATTR_HOP_PENALTY,
+
+	/**
+	 * @BATADV_ATTR_LOG_LEVEL: bitmask with to define which debug messages
+	 *  should be send to the debug log/trace ring buffer
+	 */
+	BATADV_ATTR_LOG_LEVEL,
+
+	/**
+	 * @BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED: whether multicast
+	 *  optimizations should be replaced by simple broadcast-like flooding
+	 *  of multicast packets. If set to non-zero then all nodes in the mesh
+	 *  are going to use classic flooding for any multicast packet with no
+	 *  optimizations.
+	 */
+	BATADV_ATTR_MULTICAST_FORCEFLOOD_ENABLED,
+
+	/**
+	 * @BATADV_ATTR_NETWORK_CODING_ENABLED: whether Network Coding (using
+	 *  some magic to send fewer wifi packets but still the same content) is
+	 *  enabled or not.
+	 */
+	BATADV_ATTR_NETWORK_CODING_ENABLED,
+
+	/**
+	 * @BATADV_ATTR_ORIG_INTERVAL: defines the interval in milliseconds in
+	 *  which batman sends its protocol messages.
+	 */
+	BATADV_ATTR_ORIG_INTERVAL,
+
+	/**
+	 * @BATADV_ATTR_ELP_INTERVAL: defines the interval in milliseconds in
+	 *  which batman emits probing packets for neighbor sensing (ELP).
+	 */
+	BATADV_ATTR_ELP_INTERVAL,
+
+	/**
+	 * @BATADV_ATTR_THROUGHPUT_OVERRIDE: 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.
+	 */
+	BATADV_ATTR_THROUGHPUT_OVERRIDE,
+
 	/* add attributes above here, update the policy in netlink.c */
 
 	/**
@@ -372,10 +519,14 @@ enum batadv_nl_commands {
 	BATADV_CMD_UNSPEC,
 
 	/**
-	 * @BATADV_CMD_GET_MESH_INFO: Query basic information about batman-adv
-	 * device
+	 * @BATADV_CMD_GET_MESH: Get attributes from softif/mesh
+	 */
+	BATADV_CMD_GET_MESH,
+
+	/**
+	 * @BATADV_CMD_GET_MESH_INFO: Alias for @BATADV_CMD_GET_MESH
 	 */
-	BATADV_CMD_GET_MESH_INFO,
+	BATADV_CMD_GET_MESH_INFO = BATADV_CMD_GET_MESH,
 
 	/**
 	 * @BATADV_CMD_TP_METER: Start a tp meter session
@@ -393,9 +544,15 @@ enum batadv_nl_commands {
 	BATADV_CMD_GET_ROUTING_ALGOS,
 
 	/**
-	 * @BATADV_CMD_GET_HARDIFS: Query list of hard interfaces
+	 * @BATADV_CMD_GET_HARDIF: Get attributes from a hardif of the
+	 *  current softif
 	 */
-	BATADV_CMD_GET_HARDIFS,
+	BATADV_CMD_GET_HARDIF,
+
+	/**
+	 * @BATADV_CMD_GET_HARDIFS: Alias for @BATADV_CMD_GET_HARDIF
+	 */
+	BATADV_CMD_GET_HARDIFS = BATADV_CMD_GET_HARDIF,
 
 	/**
 	 * @BATADV_CMD_GET_TRANSTABLE_LOCAL: Query list of local translations
@@ -443,6 +600,29 @@ enum batadv_nl_commands {
 	 */
 	BATADV_CMD_GET_MCAST_FLAGS,
 
+	/**
+	 * @BATADV_CMD_SET_MESH: Set attributes for softif/mesh
+	 */
+	BATADV_CMD_SET_MESH,
+
+	/**
+	 * @BATADV_CMD_SET_HARDIF: Set attributes for hardif of the
+	 *  current softif
+	 */
+	BATADV_CMD_SET_HARDIF,
+
+	/**
+	 * @BATADV_CMD_GET_VLAN: Get attributes from a VLAN of the
+	 *  current softif
+	 */
+	BATADV_CMD_GET_VLAN,
+
+	/**
+	 * @BATADV_CMD_SET_VLAN: Set attributes for VLAN of the
+	 *  current softif
+	 */
+	BATADV_CMD_SET_VLAN,
+
 	/* add new commands above here */
 
 	/**

net/batman-adv/distributed-arp-table.c

@@ -1711,6 +1711,8 @@ static void batadv_dat_put_dhcp(struct batadv_priv *bat_priv, u8 *chaddr,
 	batadv_dat_send_data(bat_priv, skb, yiaddr, vid, BATADV_P_DAT_DHT_PUT);
 	batadv_dat_send_data(bat_priv, skb, ip_dst, vid, BATADV_P_DAT_DHT_PUT);
 
+	consume_skb(skb);
+
 	batadv_dbg(BATADV_DBG_DAT, bat_priv,
 		   "Snooped from outgoing DHCPACK (server address): %pI4, %pM (vid: %i)\n",
 		   &ip_dst, hw_dst, batadv_print_vid(vid));

net/batman-adv/gateway_client.c

@@ -47,7 +47,6 @@
 #include <uapi/linux/batadv_packet.h>
 #include <uapi/linux/batman_adv.h>
 
-#include "gateway_common.h"
 #include "hard-interface.h"
 #include "log.h"
 #include "netlink.h"

net/batman-adv/gateway_common.c

@@ -28,6 +28,7 @@
 #include <linux/stddef.h>
 #include <linux/string.h>
 #include <uapi/linux/batadv_packet.h>
+#include <uapi/linux/batman_adv.h>
 
 #include "gateway_client.h"
 #include "log.h"

net/batman-adv/gateway_common.h

@@ -25,12 +25,6 @@
 
 struct net_device;
 
-enum batadv_gw_modes {
-	BATADV_GW_MODE_OFF,
-	BATADV_GW_MODE_CLIENT,
-	BATADV_GW_MODE_SERVER,
-};
-
 /**
  * enum batadv_bandwidth_units - bandwidth unit types
  */

net/batman-adv/netlink.h

@@ -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_ */

net/batman-adv/soft-interface.c

@@ -50,13 +50,13 @@
 #include <linux/string.h>
 #include <linux/types.h>
 #include <uapi/linux/batadv_packet.h>
+#include <uapi/linux/batman_adv.h>
 
 #include "bat_algo.h"
 #include "bridge_loop_avoidance.h"
 #include "debugfs.h"
 #include "distributed-arp-table.h"
 #include "gateway_client.h"
-#include "gateway_common.h"
 #include "hard-interface.h"
 #include "multicast.h"
 #include "network-coding.h"

net/batman-adv/sysfs.c

@@ -40,6 +40,7 @@
 #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"
@@ -47,6 +48,7 @@
 #include "gateway_common.h"
 #include "hard-interface.h"
 #include "log.h"
+#include "netlink.h"
 #include "network-coding.h"
 #include "soft-interface.h"
 
@@ -153,9 +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;							\
+									\
+	length = __batadv_store_bool_attr(buff, count, _post_func, attr,\
+					  &bat_priv->_name, net_dev);	\
 									\
-	return __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)				\
@@ -185,11 +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,	\
-					_post_func, attr,		\
-					&bat_priv->_var, net_dev,	\
-					NULL);	\
+	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)				\
@@ -222,6 +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;							\
 }
@@ -255,6 +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);		\
@@ -267,6 +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;							\
 }
@@ -536,6 +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;
 }
 
@@ -562,6 +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
@@ -577,10 +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,
-					batadv_post_gw_reselect, attr,
-					&bat_priv->gw.sel_class,
-					bat_priv->soft_iface, NULL);
+	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,
@@ -600,12 +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;
 }
 
 /**
@@ -673,6 +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;
 }
 
@@ -1077,6 +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;
@@ -1107,6 +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;