From: Matthias Schiffer <mschif...@universe-factory.net>
Signed-off-by: Matthias Schiffer <mschif...@universe-factory.net>
Signed-off-by: Andrew Lunn <and...@lunn.ch>
---
v2: Add missing includes
---
include/uapi/linux/batman_adv.h | 1 +
net/batman-adv/bat_iv_ogm.c | 3 +
net/batman-adv/bat_v.c | 257 ++++++++++++++++++++++++++++++++++++++++
3 files changed, 261 insertions(+)
diff --git a/include/uapi/linux/batman_adv.h b/include/uapi/linux/batman_adv.h
index baf4ac8..27f277f 100644
--- a/include/uapi/linux/batman_adv.h
+++ b/include/uapi/linux/batman_adv.h
@@ -78,6 +78,7 @@ enum {
BATADV_ATTR_LAST_SEEN_MSECS,
BATADV_ATTR_NEIGH_ADDRESS,
BATADV_ATTR_TQ,
+ BATADV_ATTR_THROUGHPUT,
__BATADV_ATTR_MAX,
};
diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
index e70560e..6659035 100644
--- a/net/batman-adv/bat_iv_ogm.c
+++ b/net/batman-adv/bat_iv_ogm.c
@@ -34,6 +34,7 @@
#include <linux/kref.h>
#include <linux/lockdep.h>
#include <linux/netdevice.h>
+#include <linux/netlink.h>
#include <linux/pkt_sched.h>
#include <linux/printk.h>
#include <linux/random.h>
@@ -47,6 +48,8 @@
#include <linux/string.h>
#include <linux/types.h>
#include <linux/workqueue.h>
+#include <net/genetlink.h>
+#include <net/netlink.h>
#include <uapi/linux/batman_adv.h>
#include "bitarray.h"
diff --git a/net/batman-adv/bat_v.c b/net/batman-adv/bat_v.c
index 3ff8bd1..18821a7 100644
--- a/net/batman-adv/bat_v.c
+++ b/net/batman-adv/bat_v.c
@@ -20,23 +20,32 @@
#include <linux/atomic.h>
#include <linux/bug.h>
+#include <linux/errno.h>
+#include <linux/if_ether.h>
#include <linux/cache.h>
#include <linux/init.h>
#include <linux/jiffies.h>
#include <linux/netdevice.h>
+#include <linux/netlink.h>
#include <linux/rculist.h>
#include <linux/rcupdate.h>
#include <linux/seq_file.h>
#include <linux/types.h>
#include <linux/workqueue.h>
+#include <net/genetlink.h>
+#include <net/netlink.h>
+#include <uapi/linux/batman_adv.h>
#include "bat_v_elp.h"
#include "bat_v_ogm.h"
#include "hard-interface.h"
#include "hash.h"
+#include "netlink.h"
#include "originator.h"
#include "packet.h"
+struct sk_buff;
+
static void batadv_v_iface_activate(struct batadv_hard_iface *hard_iface)
{
/* B.A.T.M.A.N. V does not use any queuing mechanism, therefore it can
@@ -182,6 +191,107 @@ static void batadv_v_neigh_print(struct batadv_priv
*bat_priv,
seq_puts(seq, "No batman nodes in range ...\n");
}
+static int
+batadv_v_neigh_dump_neigh(struct sk_buff *msg, u32 portid, u32 seq,
+ struct batadv_hardif_neigh_node *hardif_neigh)
+{
+ void *hdr;
+ unsigned int last_seen_msecs;
+ u32 throughput;
+
+ last_seen_msecs = jiffies_to_msecs(jiffies - hardif_neigh->last_seen);
+ throughput = ewma_throughput_read(&hardif_neigh->bat_v.throughput);
+ throughput = throughput * 100;
+
+ hdr = genlmsg_put(msg, portid, seq, &batadv_netlink_family, NLM_F_MULTI,
+ BATADV_CMD_GET_NEIGHBORS);
+ if (!hdr)
+ return -ENOBUFS;
+
+ if (nla_put(msg, BATADV_ATTR_NEIGH_ADDRESS, ETH_ALEN,
+ hardif_neigh->addr) ||
+ nla_put_u32(msg, BATADV_ATTR_HARD_IFINDEX,
+ hardif_neigh->if_incoming->net_dev->ifindex) ||
+ nla_put_u32(msg, BATADV_ATTR_LAST_SEEN_MSECS,
+ last_seen_msecs) ||
+ nla_put_u32(msg, BATADV_ATTR_THROUGHPUT, throughput))
+ goto nla_put_failure;
+
+ genlmsg_end(msg, hdr);
+ return 0;
+
+ nla_put_failure:
+ genlmsg_cancel(msg, hdr);
+ return -EMSGSIZE;
+}
+
+static int
+batadv_v_neigh_dump_hardif(struct sk_buff *msg, u32 portid, u32 seq,
+ struct batadv_priv *bat_priv,
+ struct batadv_hard_iface *hard_iface,
+ int *idx_s)
+{
+ struct batadv_hardif_neigh_node *hardif_neigh;
+ int idx = 0;
+
+ hlist_for_each_entry_rcu(hardif_neigh,
+ &hard_iface->neigh_list, list) {
+ if (idx++ < *idx_s)
+ continue;
+
+ if (batadv_v_neigh_dump_neigh(msg, portid, seq, hardif_neigh)) {
+ *idx_s = idx - 1;
+ return -EMSGSIZE;
+ }
+ }
+
+ *idx_s = 0;
+ return 0;
+}
+
+static void
+batadv_v_neigh_dump(struct sk_buff *msg, struct netlink_callback *cb,
+ struct batadv_priv *bat_priv,
+ struct batadv_hard_iface *single_hardif)
+{
+ struct batadv_hard_iface *hard_iface;
+ int i_hardif = 0;
+ int i_hardif_s = cb->args[0];
+ int idx = cb->args[1];
+ int portid = NETLINK_CB(cb->skb).portid;
+
+ rcu_read_lock();
+ if (single_hardif) {
+ if (i_hardif_s == 0) {
+ if (batadv_v_neigh_dump_hardif(msg, portid,
+ cb->nlh->nlmsg_seq,
+ bat_priv, single_hardif,
+ &idx) == 0)
+ i_hardif++;
+ }
+ } else {
+ list_for_each_entry_rcu(hard_iface, &batadv_hardif_list, list) {
+ if (hard_iface->soft_iface != bat_priv->soft_iface)
+ continue;
+
+ if (i_hardif++ < i_hardif_s)
+ continue;
+
+ if (batadv_v_neigh_dump_hardif(msg, portid,
+ cb->nlh->nlmsg_seq,
+ bat_priv, hard_iface,
+ &idx)) {
+ i_hardif--;
+ break;
+ }
+ }
+ }
+ rcu_read_unlock();
+
+ cb->args[0] = i_hardif;
+ cb->args[1] = idx;
+}
+
/**
* batadv_v_orig_print - print the originator table
* @bat_priv: the bat priv with all the soft interface information
@@ -249,6 +359,151 @@ next:
seq_puts(seq, "No batman nodes in range ...\n");
}
+static int
+batadv_v_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)
+{
+ struct batadv_neigh_ifinfo *n_ifinfo;
+ unsigned int last_seen_msecs;
+ u32 throughput;
+ void *hdr;
+
+ n_ifinfo = batadv_neigh_ifinfo_get(neigh_node, if_outgoing);
+ if (!n_ifinfo)
+ return 0;
+
+ throughput = n_ifinfo->bat_v.throughput * 100;
+
+ batadv_neigh_ifinfo_put(n_ifinfo);
+
+ last_seen_msecs = jiffies_to_msecs(jiffies - orig_node->last_seen);
+
+ 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_u32(msg, BATADV_ATTR_THROUGHPUT, throughput) ||
+ 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_v_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;
+
+ neigh_node_best = batadv_orig_router_get(orig_node, if_outgoing);
+ if (!neigh_node_best)
+ 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_v_orig_dump_subentry(msg, portid, seq, bat_priv,
+ if_outgoing, orig_node,
+ neigh_node, best)) {
+ batadv_neigh_node_put(neigh_node_best);
+
+ *sub_s = sub - 1;
+ return -EMSGSIZE;
+ }
+ }
+
+ out:
+ if (neigh_node_best)
+ batadv_neigh_node_put(neigh_node_best);
+
+ *sub_s = 0;
+ return 0;
+}
+
+static int
+batadv_v_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_v_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_v_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_v_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;
+}
+
static int batadv_v_neigh_cmp(struct batadv_neigh_node *neigh1,
struct batadv_hard_iface *if_outgoing1,
struct batadv_neigh_node *neigh2,
@@ -293,9 +548,11 @@ static struct batadv_algo_ops batadv_batman_v
__read_mostly = {
.bat_ogm_emit = batadv_v_ogm_emit,
.bat_ogm_schedule = batadv_v_ogm_schedule,
.bat_orig_print = batadv_v_orig_print,
+ .bat_orig_dump = batadv_v_orig_dump,
.bat_neigh_cmp = batadv_v_neigh_cmp,
.bat_neigh_is_similar_or_better = batadv_v_neigh_is_sob,
.bat_neigh_print = batadv_v_neigh_print,
+ .bat_neigh_dump = batadv_v_neigh_dump,
};
/**
--
2.8.0.rc3
