@@ -43,6 +43,7 @@ REVISION= $(shell if [ -d "$(PWD)/.git" ]; then \
fi)
export NOSTDINC_FLAGS := \
-I$(PWD)/compat-include/ \
+ -I$(PWD)/include/ \
-include $(PWD)/compat.h \
$(CFLAGS)
new file mode 100644
@@ -0,0 +1,67 @@
+/* Copyright (C) 2015 B.A.T.M.A.N. contributors:
+ *
+ * Matthias Schiffer
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _UAPI_LINUX_BATMAN_ADV_H_
+#define _UAPI_LINUX_BATMAN_ADV_H_
+
+#define BATADV_NL_NAME "batadv"
+
+enum {
+ BATADV_ATTR_UNSPEC,
+ BATADV_ATTR_VERSION,
+ BATADV_ATTR_ALGO_NAME,
+ BATADV_ATTR_MESH_IFINDEX,
+ BATADV_ATTR_MESH_IFNAME,
+ BATADV_ATTR_MESH_ADDRESS,
+ BATADV_ATTR_PRIMARY_IFINDEX,
+ BATADV_ATTR_PRIMARY_IFNAME,
+ BATADV_ATTR_PRIMARY_ADDRESS,
+ BATADV_ATTR_HARD_IFINDEX,
+ BATADV_ATTR_ORIG_ADDRESS,
+ BATADV_ATTR_NEIGH_ADDRESS,
+ BATADV_ATTR_TQ,
+ BATADV_ATTR_LAST_SEEN_MSECS,
+ BATADV_ATTR_TT_ADDRESS,
+ BATADV_ATTR_TT_TTVN,
+ BATADV_ATTR_TT_LAST_TTVN,
+ BATADV_ATTR_TT_CRC32,
+ BATADV_ATTR_TT_VID,
+ BATADV_ATTR_FLAG_BEST,
+ BATADV_ATTR_FLAG_ROAM,
+ BATADV_ATTR_FLAG_NOPURGE,
+ BATADV_ATTR_FLAG_NEW,
+ BATADV_ATTR_FLAG_PENDING,
+ BATADV_ATTR_FLAG_WIFI,
+ BATADV_ATTR_FLAG_ISOLA,
+ BATADV_ATTR_FLAG_TEMP,
+ __BATADV_ATTR_MAX,
+};
+
+#define BATADV_ATTR_MAX (__BATADV_ATTR_MAX - 1)
+
+enum {
+ BATADV_CMD_UNSPEC,
+ BATADV_CMD_GET_MESH_INFO,
+ BATADV_CMD_GET_TRANSTABLE_LOCAL,
+ BATADV_CMD_GET_TRANSTABLE_GLOBAL,
+ BATADV_CMD_GET_ORIGINATORS,
+ __BATADV_CMD_MAX,
+};
+
+#define BATADV_CMD_MAX (__BATADV_CMD_MAX - 1)
+
+#endif /* _UAPI_LINUX_BATMAN_ADV_H_ */
@@ -30,6 +30,7 @@ batman-adv-y += hash.o
batman-adv-y += icmp_socket.o
batman-adv-y += main.o
batman-adv-$(CONFIG_BATMAN_ADV_MCAST) += multicast.o
+batman-adv-y += netlink.o
batman-adv-$(CONFIG_BATMAN_ADV_NC) += network-coding.o
batman-adv-y += originator.o
batman-adv-y += routing.o
@@ -45,10 +45,12 @@
#include <linux/string.h>
#include <linux/types.h>
#include <linux/workqueue.h>
+#include <uapi/linux/batman_adv.h>
#include "bitarray.h"
#include "hard-interface.h"
#include "hash.h"
+#include "netlink.h"
#include "network-coding.h"
#include "originator.h"
#include "packet.h"
@@ -1887,6 +1889,171 @@ next:
seq_puts(seq, "No batman nodes in range ...\n");
}
+static bool
+batadv_iv_ogm_neigh_get_tq_avg(struct batadv_neigh_node *neigh_node,
+ struct batadv_hard_iface *if_outgoing,
+ u8 *tq_avg)
+{
+ struct batadv_neigh_ifinfo *n_ifinfo;
+
+ n_ifinfo = batadv_neigh_ifinfo_get(neigh_node, if_outgoing);
+ if (!n_ifinfo)
+ return false;
+
+ *tq_avg = n_ifinfo->bat_iv.tq_avg;
+ batadv_neigh_ifinfo_free_ref(n_ifinfo);
+
+ return true;
+}
+
+static int
+batadv_iv_ogm_orig_dump_subentry(struct sk_buff *msg, u32 portid, u32 seq,
+ struct batadv_priv *bat_priv,
+ struct batadv_hard_iface *if_outgoing,
+ struct batadv_orig_node *orig_node,
+ struct batadv_neigh_node *neigh_node,
+ bool best)
+{
+ void *hdr;
+ u8 tq_avg;
+ unsigned int last_seen_msecs;
+
+ last_seen_msecs = jiffies_to_msecs(jiffies - orig_node->last_seen);
+
+ if (!batadv_iv_ogm_neigh_get_tq_avg(neigh_node, if_outgoing, &tq_avg))
+ return 0;
+
+ hdr = genlmsg_put(msg, portid, seq, &batadv_netlink_family, NLM_F_MULTI,
+ BATADV_CMD_GET_ORIGINATORS);
+ if (!hdr)
+ return -ENOBUFS;
+
+ if (nla_put(msg, BATADV_ATTR_ORIG_ADDRESS, ETH_ALEN, orig_node->orig) ||
+ nla_put(msg, BATADV_ATTR_NEIGH_ADDRESS, ETH_ALEN,
+ neigh_node->addr) ||
+ nla_put_u32(msg, BATADV_ATTR_HARD_IFINDEX,
+ neigh_node->if_incoming->net_dev->ifindex) ||
+ nla_put_u8(msg, BATADV_ATTR_TQ, tq_avg) ||
+ nla_put_u32(msg, BATADV_ATTR_LAST_SEEN_MSECS,
+ last_seen_msecs))
+ goto nla_put_failure;
+
+ if (best && nla_put_flag(msg, BATADV_ATTR_FLAG_BEST))
+ goto nla_put_failure;
+
+ genlmsg_end(msg, hdr);
+ return 0;
+
+ nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+ return -EMSGSIZE;
+}
+
+static int
+batadv_iv_ogm_orig_dump_entry(struct sk_buff *msg, u32 portid, u32 seq,
+ struct batadv_priv *bat_priv,
+ struct batadv_hard_iface *if_outgoing,
+ struct batadv_orig_node *orig_node, int *sub_s)
+{
+ struct batadv_neigh_node *neigh_node_best;
+ struct batadv_neigh_node *neigh_node;
+ int sub = 0;
+ bool best;
+ u8 tq_avg_best;
+
+ neigh_node_best = batadv_orig_router_get(orig_node, if_outgoing);
+ if (!neigh_node_best)
+ goto out;
+
+ if (!batadv_iv_ogm_neigh_get_tq_avg(neigh_node_best, if_outgoing,
+ &tq_avg_best))
+ goto out;
+
+ if (tq_avg_best == 0)
+ goto out;
+
+ hlist_for_each_entry_rcu(neigh_node, &orig_node->neigh_list, list) {
+ if (sub++ < *sub_s)
+ continue;
+
+ best = (neigh_node == neigh_node_best);
+
+ if (batadv_iv_ogm_orig_dump_subentry(msg, portid, seq, bat_priv,
+ if_outgoing, orig_node,
+ neigh_node, best)) {
+ batadv_neigh_node_free_ref(neigh_node_best);
+
+ *sub_s = sub - 1;
+ return -EMSGSIZE;
+ }
+ }
+
+ out:
+ if (neigh_node_best)
+ batadv_neigh_node_free_ref(neigh_node_best);
+
+ *sub_s = 0;
+ return 0;
+}
+
+static int
+batadv_iv_ogm_orig_dump_bucket(struct sk_buff *msg, u32 portid, u32 seq,
+ struct batadv_priv *bat_priv,
+ struct batadv_hard_iface *if_outgoing,
+ struct hlist_head *head, int *idx_s, int *sub)
+{
+ struct batadv_orig_node *orig_node;
+ int idx = 0;
+
+ rcu_read_lock();
+ hlist_for_each_entry_rcu(orig_node, head, hash_entry) {
+ if (idx++ < *idx_s)
+ continue;
+
+ if (batadv_iv_ogm_orig_dump_entry(msg, portid, seq, bat_priv,
+ if_outgoing, orig_node,
+ sub)) {
+ rcu_read_unlock();
+ *idx_s = idx - 1;
+ return -EMSGSIZE;
+ }
+ }
+ rcu_read_unlock();
+
+ *idx_s = 0;
+ *sub = 0;
+ return 0;
+}
+
+static void
+batadv_iv_ogm_orig_dump(struct sk_buff *msg, struct netlink_callback *cb,
+ struct batadv_priv *bat_priv,
+ struct batadv_hard_iface *if_outgoing)
+{
+ struct batadv_hashtable *hash = bat_priv->orig_hash;
+ struct hlist_head *head;
+ int bucket = cb->args[0];
+ int idx = cb->args[1];
+ int sub = cb->args[2];
+ int portid = NETLINK_CB(cb->skb).portid;
+
+ while (bucket < hash->size) {
+ head = &hash->table[bucket];
+
+ if (batadv_iv_ogm_orig_dump_bucket(msg, portid,
+ cb->nlh->nlmsg_seq,
+ bat_priv, if_outgoing, head,
+ &idx, &sub))
+ break;
+
+ bucket++;
+ }
+
+ cb->args[0] = bucket;
+ cb->args[1] = idx;
+ cb->args[2] = sub;
+}
+
/**
* batadv_iv_ogm_neigh_cmp - compare the metrics of two neighbors
* @neigh1: the first neighbor object of the comparison
@@ -1981,6 +2148,7 @@ static struct batadv_algo_ops batadv_batman_iv __read_mostly = {
.bat_neigh_cmp = batadv_iv_ogm_neigh_cmp,
.bat_neigh_is_equiv_or_better = batadv_iv_ogm_neigh_is_eob,
.bat_orig_print = batadv_iv_ogm_orig_print,
+ .bat_orig_dump = batadv_iv_ogm_orig_dump,
.bat_orig_free = batadv_iv_ogm_orig_free,
.bat_orig_add_if = batadv_iv_ogm_orig_add_if,
.bat_orig_del_if = batadv_iv_ogm_orig_del_if,
@@ -55,6 +55,7 @@
#include "hard-interface.h"
#include "icmp_socket.h"
#include "multicast.h"
+#include "netlink.h"
#include "network-coding.h"
#include "originator.h"
#include "packet.h"
@@ -98,6 +99,7 @@ static int __init batadv_init(void)
register_netdevice_notifier(&batadv_hard_if_notifier);
rtnl_link_register(&batadv_link_ops);
+ batadv_netlink_register();
pr_info("B.A.T.M.A.N. advanced %s (compatibility version %i) loaded\n",
BATADV_SOURCE_VERSION, BATADV_COMPAT_VERSION);
@@ -108,6 +110,7 @@ static int __init batadv_init(void)
static void __exit batadv_exit(void)
{
batadv_debugfs_destroy();
+ batadv_netlink_unregister();
rtnl_link_unregister(&batadv_link_ops);
unregister_netdevice_notifier(&batadv_hard_if_notifier);
batadv_hardif_remove_interfaces();
new file mode 100644
@@ -0,0 +1,174 @@
+/* Copyright (C) 2015 B.A.T.M.A.N. contributors:
+ *
+ * Matthias Schiffer
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "main.h"
+#include "netlink.h"
+
+#include <linux/netdevice.h>
+#include <uapi/linux/batman_adv.h>
+
+#include "hard-interface.h"
+#include "originator.h"
+#include "soft-interface.h"
+#include "translation-table.h"
+
+struct genl_family batadv_netlink_family = {
+ .id = GENL_ID_GENERATE,
+ .hdrsize = 0,
+ .name = BATADV_NL_NAME,
+ .version = 1,
+ .maxattr = BATADV_ATTR_MAX,
+};
+
+static int
+batadv_netlink_mesh_info_put(struct sk_buff *msg, struct net_device *soft_iface)
+{
+ int ret = -ENOBUFS;
+ struct batadv_priv *bat_priv = netdev_priv(soft_iface);
+ struct batadv_hard_iface *primary_if = NULL;
+ struct net_device *hard_iface;
+
+ if (nla_put_string(msg, BATADV_ATTR_VERSION, BATADV_SOURCE_VERSION) ||
+ nla_put_string(msg, BATADV_ATTR_ALGO_NAME,
+ bat_priv->bat_algo_ops->name) ||
+ nla_put_u32(msg, BATADV_ATTR_MESH_IFINDEX, soft_iface->ifindex) ||
+ nla_put_string(msg, BATADV_ATTR_MESH_IFNAME, soft_iface->name) ||
+ nla_put(msg, BATADV_ATTR_MESH_ADDRESS, ETH_ALEN,
+ soft_iface->dev_addr))
+ goto out;
+
+ primary_if = batadv_primary_if_get_selected(bat_priv);
+ if (primary_if && primary_if->if_status == BATADV_IF_ACTIVE) {
+ hard_iface = primary_if->net_dev;
+
+ if (nla_put_u32(msg, BATADV_ATTR_PRIMARY_IFINDEX,
+ hard_iface->ifindex) ||
+ nla_put_string(msg, BATADV_ATTR_PRIMARY_IFNAME,
+ hard_iface->name) ||
+ nla_put(msg, BATADV_ATTR_PRIMARY_ADDRESS, ETH_ALEN,
+ hard_iface->dev_addr))
+ goto out;
+ }
+
+ ret = 0;
+
+ out:
+ if (primary_if)
+ batadv_hardif_free_ref(primary_if);
+
+ return ret;
+}
+
+static int
+batadv_netlink_get_mesh_info(struct sk_buff *skb, struct genl_info *info)
+{
+ struct net *net = genl_info_net(info);
+ int ret;
+ struct sk_buff *msg = NULL;
+ void *msg_head;
+ int ifindex;
+ struct net_device *soft_iface = NULL;
+
+ if (!info->attrs[BATADV_ATTR_MESH_IFINDEX])
+ return -EINVAL;
+
+ ifindex = nla_get_u32(info->attrs[BATADV_ATTR_MESH_IFINDEX]);
+ if (!ifindex)
+ return -EINVAL;
+
+ soft_iface = dev_get_by_index(net, ifindex);
+ if (!soft_iface || !batadv_softif_is_valid(soft_iface)) {
+ ret = -ENODEV;
+ goto out;
+ }
+
+ msg = nlmsg_new(NLMSG_DEFAULT_SIZE, GFP_KERNEL);
+ if (!msg) {
+ ret = -ENOMEM;
+ goto out;
+ }
+
+ msg_head = genlmsg_put(msg, info->snd_portid, info->snd_seq,
+ &batadv_netlink_family, 0,
+ BATADV_CMD_GET_MESH_INFO);
+ if (!msg_head) {
+ ret = -ENOBUFS;
+ goto out;
+ }
+
+ ret = batadv_netlink_mesh_info_put(msg, soft_iface);
+
+ out:
+ if (soft_iface)
+ dev_put(soft_iface);
+
+ if (ret) {
+ if (msg)
+ nlmsg_free(msg);
+ return ret;
+ }
+
+ genlmsg_end(msg, msg_head);
+ return genlmsg_reply(msg, info);
+}
+
+static struct nla_policy batadv_netlink_policy[BATADV_ATTR_MAX + 1] = {
+ [BATADV_ATTR_MESH_IFINDEX] = { .type = NLA_U32 },
+ [BATADV_ATTR_HARD_IFINDEX] = { .type = NLA_U32 },
+};
+
+static struct genl_ops batadv_netlink_ops[] = {
+ {
+ .cmd = BATADV_CMD_GET_MESH_INFO,
+ .flags = GENL_ADMIN_PERM,
+ .policy = batadv_netlink_policy,
+ .doit = batadv_netlink_get_mesh_info,
+ },
+ {
+ .cmd = BATADV_CMD_GET_TRANSTABLE_LOCAL,
+ .flags = GENL_ADMIN_PERM,
+ .policy = batadv_netlink_policy,
+ .dumpit = batadv_tt_local_dump,
+ },
+ {
+ .cmd = BATADV_CMD_GET_TRANSTABLE_GLOBAL,
+ .flags = GENL_ADMIN_PERM,
+ .policy = batadv_netlink_policy,
+ .dumpit = batadv_tt_global_dump,
+ },
+ {
+ .cmd = BATADV_CMD_GET_ORIGINATORS,
+ .flags = GENL_ADMIN_PERM,
+ .policy = batadv_netlink_policy,
+ .dumpit = batadv_orig_dump,
+ },
+};
+
+void __init batadv_netlink_register(void)
+{
+ int ret;
+
+ ret = genl_register_family_with_ops(&batadv_netlink_family,
+ batadv_netlink_ops);
+ if (ret)
+ pr_warn("unable to register netlink family");
+}
+
+void batadv_netlink_unregister(void)
+{
+ genl_unregister_family(&batadv_netlink_family);
+}
new file mode 100644
@@ -0,0 +1,36 @@
+/* Copyright (C) 2015 B.A.T.M.A.N. contributors:
+ *
+ * Matthias Schiffer
+ *
+ * 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _NET_BATMAN_ADV_NETLINK_H_
+#define _NET_BATMAN_ADV_NETLINK_H_
+
+#include <net/genetlink.h>
+
+void batadv_netlink_register(void);
+void batadv_netlink_unregister(void);
+
+static inline int
+batadv_netlink_get_ifindex(const struct nlmsghdr *nlh, int attrtype)
+{
+ struct nlattr *attr = nlmsg_find_attr(nlh, GENL_HDRLEN, attrtype);
+
+ return attr ? nla_get_u32(attr) : 0;
+}
+
+extern struct genl_family batadv_netlink_family;
+
+#endif /* _NET_BATMAN_ADV_NETLINK_H_ */
@@ -30,6 +30,8 @@
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/workqueue.h>
+#include <net/sock.h>
+#include <uapi/linux/batman_adv.h>
#include "distributed-arp-table.h"
#include "fragmentation.h"
@@ -37,8 +39,10 @@
#include "hard-interface.h"
#include "hash.h"
#include "multicast.h"
+#include "netlink.h"
#include "network-coding.h"
#include "routing.h"
+#include "soft-interface.h"
#include "translation-table.h"
/* hash class keys */
@@ -1106,6 +1110,77 @@ out:
return 0;
}
+int batadv_orig_dump(struct sk_buff *msg, struct netlink_callback *cb)
+{
+ struct net *net = sock_net(cb->skb->sk);
+ struct net_device *soft_iface = NULL;
+ struct net_device *outgoing_iface = NULL;
+ struct batadv_hard_iface *outgoing_hardif = BATADV_IF_DEFAULT;
+ struct batadv_priv *bat_priv;
+ struct batadv_hard_iface *primary_if = NULL;
+ int ret;
+ int ifindex, ifindex_outgoing;
+
+ ifindex = batadv_netlink_get_ifindex(cb->nlh, BATADV_ATTR_MESH_IFINDEX);
+ if (!ifindex)
+ return -EINVAL;
+
+ soft_iface = dev_get_by_index(net, ifindex);
+ if (!soft_iface || !batadv_softif_is_valid(soft_iface)) {
+ ret = -ENODEV;
+ goto out;
+ }
+
+ bat_priv = netdev_priv(soft_iface);
+
+ primary_if = batadv_primary_if_get_selected(bat_priv);
+ if (!primary_if || primary_if->if_status != BATADV_IF_ACTIVE) {
+ ret = -ENOENT;
+ goto out;
+ }
+
+ ifindex_outgoing = batadv_netlink_get_ifindex(cb->nlh,
+ BATADV_ATTR_HARD_IFINDEX);
+ if (ifindex_outgoing) {
+ outgoing_iface = dev_get_by_index(net, ifindex_outgoing);
+ if (outgoing_iface)
+ outgoing_hardif =
+ batadv_hardif_get_by_netdev(outgoing_iface);
+
+ if (!outgoing_hardif) {
+ ret = -ENODEV;
+ goto out;
+ }
+
+ if (outgoing_hardif->soft_iface != soft_iface) {
+ ret = -ENOENT;
+ goto out;
+ }
+ }
+
+ if (!bat_priv->bat_algo_ops->bat_orig_dump) {
+ ret = -EOPNOTSUPP;
+ goto out;
+ }
+
+ bat_priv->bat_algo_ops->bat_orig_dump(msg, cb, bat_priv,
+ outgoing_hardif);
+
+ ret = msg->len;
+
+ out:
+ if (outgoing_hardif)
+ batadv_hardif_free_ref(outgoing_hardif);
+ if (outgoing_iface)
+ dev_put(outgoing_iface);
+ if (primary_if)
+ batadv_hardif_free_ref(primary_if);
+ if (soft_iface)
+ dev_put(soft_iface);
+
+ return ret;
+}
+
int batadv_orig_hash_add_if(struct batadv_hard_iface *hard_iface,
int max_if_num)
{
@@ -69,6 +69,7 @@ batadv_orig_ifinfo_new(struct batadv_orig_node *orig_node,
void batadv_orig_ifinfo_free_ref(struct batadv_orig_ifinfo *orig_ifinfo);
int batadv_orig_seq_print_text(struct seq_file *seq, void *offset);
+int batadv_orig_dump(struct sk_buff *msg, struct netlink_callback *cb);
int batadv_orig_hardif_seq_print_text(struct seq_file *seq, void *offset);
int batadv_orig_hash_add_if(struct batadv_hard_iface *hard_iface,
int max_if_num);
@@ -43,11 +43,14 @@
#include <linux/string.h>
#include <linux/workqueue.h>
#include <net/net_namespace.h>
+#include <net/sock.h>
+#include <uapi/linux/batman_adv.h>
#include "bridge_loop_avoidance.h"
#include "hard-interface.h"
#include "hash.h"
#include "multicast.h"
+#include "netlink.h"
#include "originator.h"
#include "packet.h"
#include "soft-interface.h"
@@ -1010,6 +1013,155 @@ out:
return 0;
}
+static int
+batadv_tt_local_dump_entry(struct sk_buff *msg, u32 portid, u32 seq,
+ struct batadv_priv *bat_priv,
+ struct batadv_tt_common_entry *common)
+{
+ void *hdr;
+ struct batadv_softif_vlan *vlan;
+ struct batadv_tt_local_entry *local;
+ u16 flags = common->flags;
+ unsigned int last_seen_msecs;
+ u32 crc;
+
+ local = container_of(common, struct batadv_tt_local_entry, common);
+ last_seen_msecs = jiffies_to_msecs(jiffies - local->last_seen);
+
+ vlan = batadv_softif_vlan_get(bat_priv, common->vid);
+ if (!vlan)
+ return 0;
+
+ crc = vlan->tt.crc;
+
+ batadv_softif_vlan_free_ref(vlan);
+
+ hdr = genlmsg_put(msg, portid, seq, &batadv_netlink_family, NLM_F_MULTI,
+ BATADV_CMD_GET_TRANSTABLE_LOCAL);
+ if (!hdr)
+ return -ENOBUFS;
+
+ if (nla_put(msg, BATADV_ATTR_TT_ADDRESS, ETH_ALEN, common->addr) ||
+ nla_put_u32(msg, BATADV_ATTR_TT_CRC32, crc) ||
+ nla_put_u16(msg, BATADV_ATTR_TT_VID, BATADV_PRINT_VID(common->vid)))
+ goto nla_put_failure;
+
+ if ((flags & BATADV_TT_CLIENT_ROAM) &&
+ nla_put_flag(msg, BATADV_ATTR_FLAG_ROAM))
+ goto nla_put_failure;
+ if ((flags & BATADV_TT_CLIENT_NOPURGE) &&
+ nla_put_flag(msg, BATADV_ATTR_FLAG_NOPURGE))
+ goto nla_put_failure;
+ if ((flags & BATADV_TT_CLIENT_NEW) &&
+ nla_put_flag(msg, BATADV_ATTR_FLAG_NEW))
+ goto nla_put_failure;
+ if ((flags & BATADV_TT_CLIENT_PENDING) &&
+ nla_put_flag(msg, BATADV_ATTR_FLAG_PENDING))
+ goto nla_put_failure;
+ if ((flags & BATADV_TT_CLIENT_WIFI) &&
+ nla_put_flag(msg, BATADV_ATTR_FLAG_WIFI))
+ goto nla_put_failure;
+ if ((flags & BATADV_TT_CLIENT_ISOLA) &&
+ nla_put_flag(msg, BATADV_ATTR_FLAG_ISOLA))
+ goto nla_put_failure;
+
+ if (!(flags & BATADV_TT_CLIENT_NOPURGE) &&
+ nla_put_u32(msg, BATADV_ATTR_LAST_SEEN_MSECS,
+ last_seen_msecs))
+ goto nla_put_failure;
+
+ genlmsg_end(msg, hdr);
+ return 0;
+
+ nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+ return -EMSGSIZE;
+}
+
+static int
+batadv_tt_local_dump_bucket(struct sk_buff *msg, u32 portid, u32 seq,
+ struct batadv_priv *bat_priv,
+ struct hlist_head *head, int *idx_s)
+{
+ struct batadv_tt_common_entry *common;
+ int idx = 0;
+
+ rcu_read_lock();
+ hlist_for_each_entry_rcu(common, head, hash_entry) {
+ if (idx++ < *idx_s)
+ continue;
+
+ if (batadv_tt_local_dump_entry(msg, portid, seq, bat_priv,
+ common)) {
+ rcu_read_unlock();
+ *idx_s = idx - 1;
+ return -EMSGSIZE;
+ }
+ }
+ rcu_read_unlock();
+
+ *idx_s = 0;
+ return 0;
+}
+
+int batadv_tt_local_dump(struct sk_buff *msg, struct netlink_callback *cb)
+{
+ struct net *net = sock_net(cb->skb->sk);
+ struct net_device *soft_iface = NULL;
+ struct batadv_priv *bat_priv;
+ struct batadv_hard_iface *primary_if = NULL;
+ struct batadv_hashtable *hash;
+ struct hlist_head *head;
+ int ret;
+ int ifindex;
+ int bucket = cb->args[0];
+ int idx = cb->args[1];
+ int portid = NETLINK_CB(cb->skb).portid;
+
+ ifindex = batadv_netlink_get_ifindex(cb->nlh, BATADV_ATTR_MESH_IFINDEX);
+ if (!ifindex)
+ return -EINVAL;
+
+ soft_iface = dev_get_by_index(net, ifindex);
+ if (!soft_iface || !batadv_softif_is_valid(soft_iface)) {
+ ret = -ENODEV;
+ goto out;
+ }
+
+ bat_priv = netdev_priv(soft_iface);
+
+ primary_if = batadv_primary_if_get_selected(bat_priv);
+ if (!primary_if || primary_if->if_status != BATADV_IF_ACTIVE) {
+ ret = -ENOENT;
+ goto out;
+ }
+
+ hash = bat_priv->tt.local_hash;
+
+ while (bucket < hash->size) {
+ head = &hash->table[bucket];
+
+ if (batadv_tt_local_dump_bucket(msg, portid, cb->nlh->nlmsg_seq,
+ bat_priv, head, &idx))
+ break;
+
+ bucket++;
+ }
+
+ ret = msg->len;
+
+ out:
+ if (primary_if)
+ batadv_hardif_free_ref(primary_if);
+ if (soft_iface)
+ dev_put(soft_iface);
+
+ cb->args[0] = bucket;
+ cb->args[1] = idx;
+
+ return ret;
+}
+
static void
batadv_tt_local_set_pending(struct batadv_priv *bat_priv,
struct batadv_tt_local_entry *tt_local_entry,
@@ -1654,6 +1806,186 @@ out:
return 0;
}
+static int
+batadv_tt_global_dump_subentry(struct sk_buff *msg, u32 portid, u32 seq,
+ struct batadv_tt_common_entry *common,
+ struct batadv_tt_orig_list_entry *orig,
+ bool best)
+{
+ void *hdr;
+ struct batadv_orig_node_vlan *vlan;
+ u16 flags = common->flags;
+ u8 last_ttvn;
+ u32 crc;
+
+ vlan = batadv_orig_node_vlan_get(orig->orig_node,
+ common->vid);
+ if (!vlan)
+ return 0;
+
+ crc = vlan->tt.crc;
+
+ batadv_orig_node_vlan_free_ref(vlan);
+
+ hdr = genlmsg_put(msg, portid, seq, &batadv_netlink_family, NLM_F_MULTI,
+ BATADV_CMD_GET_TRANSTABLE_GLOBAL);
+ if (!hdr)
+ return -ENOBUFS;
+
+ last_ttvn = atomic_read(&orig->orig_node->last_ttvn);
+
+ if (nla_put(msg, BATADV_ATTR_TT_ADDRESS, ETH_ALEN, common->addr) ||
+ nla_put(msg, BATADV_ATTR_ORIG_ADDRESS, ETH_ALEN,
+ orig->orig_node->orig) ||
+ nla_put_u8(msg, BATADV_ATTR_TT_TTVN, orig->ttvn) ||
+ nla_put_u8(msg, BATADV_ATTR_TT_LAST_TTVN, last_ttvn) ||
+ nla_put_u32(msg, BATADV_ATTR_TT_CRC32, crc) ||
+ nla_put_u16(msg, BATADV_ATTR_TT_VID, BATADV_PRINT_VID(common->vid)))
+ goto nla_put_failure;
+
+ if (best && nla_put_flag(msg, BATADV_ATTR_FLAG_BEST))
+ goto nla_put_failure;
+ if ((flags & BATADV_TT_CLIENT_ROAM) &&
+ nla_put_flag(msg, BATADV_ATTR_FLAG_ROAM))
+ goto nla_put_failure;
+ if ((flags & BATADV_TT_CLIENT_WIFI) &&
+ nla_put_flag(msg, BATADV_ATTR_FLAG_WIFI))
+ goto nla_put_failure;
+ if ((flags & BATADV_TT_CLIENT_ISOLA) &&
+ nla_put_flag(msg, BATADV_ATTR_FLAG_ISOLA))
+ goto nla_put_failure;
+ if ((flags & BATADV_TT_CLIENT_TEMP) &&
+ nla_put_flag(msg, BATADV_ATTR_FLAG_TEMP))
+ goto nla_put_failure;
+
+ genlmsg_end(msg, hdr);
+ return 0;
+
+ nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+ return -EMSGSIZE;
+}
+
+static int
+batadv_tt_global_dump_entry(struct sk_buff *msg, u32 portid, u32 seq,
+ struct batadv_priv *bat_priv,
+ struct batadv_tt_common_entry *common, int *sub_s)
+{
+ struct batadv_tt_orig_list_entry *orig_entry, *best_entry;
+ struct batadv_tt_global_entry *global;
+ struct hlist_head *head;
+ int sub = 0;
+ bool best;
+
+ global = container_of(common, struct batadv_tt_global_entry, common);
+ best_entry = batadv_transtable_best_orig(bat_priv, global);
+ head = &global->orig_list;
+
+ hlist_for_each_entry_rcu(orig_entry, head, list) {
+ if (sub++ < *sub_s)
+ continue;
+
+ best = (orig_entry == best_entry);
+
+ if (batadv_tt_global_dump_subentry(msg, portid, seq, common,
+ orig_entry, best)) {
+ *sub_s = sub - 1;
+ return -EMSGSIZE;
+ }
+ }
+
+ *sub_s = 0;
+ return 0;
+}
+
+static int
+batadv_tt_global_dump_bucket(struct sk_buff *msg, u32 portid, u32 seq,
+ struct batadv_priv *bat_priv,
+ struct hlist_head *head, int *idx_s, int *sub)
+{
+ struct batadv_tt_common_entry *common;
+ int idx = 0;
+
+ rcu_read_lock();
+ hlist_for_each_entry_rcu(common, head, hash_entry) {
+ if (idx++ < *idx_s)
+ continue;
+
+ if (batadv_tt_global_dump_entry(msg, portid, seq, bat_priv,
+ common, sub)) {
+ rcu_read_unlock();
+ *idx_s = idx - 1;
+ return -EMSGSIZE;
+ }
+ }
+ rcu_read_unlock();
+
+ *idx_s = 0;
+ *sub = 0;
+ return 0;
+}
+
+int batadv_tt_global_dump(struct sk_buff *msg, struct netlink_callback *cb)
+{
+ struct net *net = sock_net(cb->skb->sk);
+ struct net_device *soft_iface = NULL;
+ struct batadv_priv *bat_priv;
+ struct batadv_hard_iface *primary_if = NULL;
+ struct batadv_hashtable *hash;
+ struct hlist_head *head;
+ int ret;
+ int ifindex;
+ int bucket = cb->args[0];
+ int idx = cb->args[1];
+ int sub = cb->args[2];
+ int portid = NETLINK_CB(cb->skb).portid;
+
+ ifindex = batadv_netlink_get_ifindex(cb->nlh, BATADV_ATTR_MESH_IFINDEX);
+ if (!ifindex)
+ return -EINVAL;
+
+ soft_iface = dev_get_by_index(net, ifindex);
+ if (!soft_iface || !batadv_softif_is_valid(soft_iface)) {
+ ret = -ENODEV;
+ goto out;
+ }
+
+ bat_priv = netdev_priv(soft_iface);
+
+ primary_if = batadv_primary_if_get_selected(bat_priv);
+ if (!primary_if || primary_if->if_status != BATADV_IF_ACTIVE) {
+ ret = -ENOENT;
+ goto out;
+ }
+
+ hash = bat_priv->tt.global_hash;
+
+ while (bucket < hash->size) {
+ head = &hash->table[bucket];
+
+ if (batadv_tt_global_dump_bucket(msg, portid,
+ cb->nlh->nlmsg_seq, bat_priv,
+ head, &idx, &sub))
+ break;
+
+ bucket++;
+ }
+
+ ret = msg->len;
+
+ out:
+ if (primary_if)
+ batadv_hardif_free_ref(primary_if);
+ if (soft_iface)
+ dev_put(soft_iface);
+
+ cb->args[0] = bucket;
+ cb->args[1] = idx;
+ cb->args[2] = sub;
+
+ return ret;
+}
+
/**
* _batadv_tt_global_del_orig_entry - remove and free an orig_entry
* @tt_global_entry: the global entry to remove the orig_entry from
@@ -33,6 +33,8 @@ u16 batadv_tt_local_remove(struct batadv_priv *bat_priv,
const char *message, bool roaming);
int batadv_tt_local_seq_print_text(struct seq_file *seq, void *offset);
int batadv_tt_global_seq_print_text(struct seq_file *seq, void *offset);
+int batadv_tt_local_dump(struct sk_buff *msg, struct netlink_callback *cb);
+int batadv_tt_global_dump(struct sk_buff *msg, struct netlink_callback *cb);
void batadv_tt_global_del_orig(struct batadv_priv *bat_priv,
struct batadv_orig_node *orig_node,
s32 match_vid, const char *message);
@@ -26,6 +26,7 @@
#include <linux/compiler.h>
#include <linux/if_ether.h>
#include <linux/netdevice.h>
+#include <linux/netlink.h>
#include <linux/sched.h> /* for linux/wait.h */
#include <linux/spinlock.h>
#include <linux/types.h>
@@ -1171,6 +1172,9 @@ struct batadv_algo_ops {
/* orig_node handling API */
void (*bat_orig_print)(struct batadv_priv *priv, struct seq_file *seq,
struct batadv_hard_iface *hard_iface);
+ void (*bat_orig_dump)(struct sk_buff *msg, struct netlink_callback *cb,
+ struct batadv_priv *priv,
+ struct batadv_hard_iface *hard_iface);
void (*bat_orig_free)(struct batadv_orig_node *orig_node);
int (*bat_orig_add_if)(struct batadv_orig_node *orig_node,
int max_if_num);