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authorLinus Torvalds <torvalds@linux-foundation.org>2012-07-24 10:01:50 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-07-24 10:01:50 -0700
commit3c4cfadef6a1665d9cd02a543782d03d3e6740c6 (patch)
tree3df72faaacd494d5ac8c9668df4f529b1b5e4457 /net/batman-adv/translation-table.c
parente017507f37d5cb8b541df165a824958bc333bec3 (diff)
parent320f5ea0cedc08ef65d67e056bcb9d181386ef2c (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking changes from David S Miller: 1) Remove the ipv4 routing cache. Now lookups go directly into the FIB trie and use prebuilt routes cached there. No more garbage collection, no more rDOS attacks on the routing cache. Instead we now get predictable and consistent performance, no matter what the pattern of traffic we service. This has been almost 2 years in the making. Special thanks to Julian Anastasov, Eric Dumazet, Steffen Klassert, and others who have helped along the way. I'm sure that with a change of this magnitude there will be some kind of fallout, but such things ought the be simple to fix at this point. Luckily I'm not European so I'll be around all of August to fix things :-) The major stages of this work here are each fronted by a forced merge commit whose commit message contains a top-level description of the motivations and implementation issues. 2) Pre-demux of established ipv4 TCP sockets, saves a route demux on input. 3) TCP SYN/ACK performance tweaks from Eric Dumazet. 4) Add namespace support for netfilter L4 conntrack helpers, from Gao Feng. 5) Add config mechanism for Energy Efficient Ethernet to ethtool, from Yuval Mintz. 6) Remove quadratic behavior from /proc/net/unix, from Eric Dumazet. 7) Support for connection tracker helpers in userspace, from Pablo Neira Ayuso. 8) Allow userspace driven TX load balancing functions in TEAM driver, from Jiri Pirko. 9) Kill off NLMSG_PUT and RTA_PUT macros, more gross stuff with embedded gotos. 10) TCP Small Queues, essentially minimize the amount of TCP data queued up in the packet scheduler layer. Whereas the existing BQL (Byte Queue Limits) limits the pkt_sched --> netdevice queuing levels, this controls the TCP --> pkt_sched queueing levels. From Eric Dumazet. 11) Reduce the number of get_page/put_page ops done on SKB fragments, from Alexander Duyck. 12) Implement protection against blind resets in TCP (RFC 5961), from Eric Dumazet. 13) Support the client side of TCP Fast Open, basically the ability to send data in the SYN exchange, from Yuchung Cheng. Basically, the sender queues up data with a sendmsg() call using MSG_FASTOPEN, then they do the connect() which emits the queued up fastopen data. 14) Avoid all the problems we get into in TCP when timers or PMTU events hit a locked socket. The TCP Small Queues changes added a tcp_release_cb() that allows us to queue work up to the release_sock() caller, and that's what we use here too. From Eric Dumazet. 15) Zero copy on TX support for TUN driver, from Michael S. Tsirkin. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1870 commits) genetlink: define lockdep_genl_is_held() when CONFIG_LOCKDEP r8169: revert "add byte queue limit support". ipv4: Change rt->rt_iif encoding. net: Make skb->skb_iif always track skb->dev ipv4: Prepare for change of rt->rt_iif encoding. ipv4: Remove all RTCF_DIRECTSRC handliing. ipv4: Really ignore ICMP address requests/replies. decnet: Don't set RTCF_DIRECTSRC. net/ipv4/ip_vti.c: Fix __rcu warnings detected by sparse. ipv4: Remove redundant assignment rds: set correct msg_namelen openvswitch: potential NULL deref in sample() tcp: dont drop MTU reduction indications bnx2x: Add new 57840 device IDs tcp: avoid oops in tcp_metrics and reset tcpm_stamp niu: Change niu_rbr_fill() to use unlikely() to check niu_rbr_add_page() return value niu: Fix to check for dma mapping errors. net: Fix references to out-of-scope variables in put_cmsg_compat() net: ethernet: davinci_emac: add pm_runtime support net: ethernet: davinci_emac: Remove unnecessary #include ...
Diffstat (limited to 'net/batman-adv/translation-table.c')
-rw-r--r--net/batman-adv/translation-table.c1659
1 files changed, 943 insertions, 716 deletions
diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index 2ab83d7fb1f8..a438f4b582fc 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -1,5 +1,4 @@
-/*
- * Copyright (C) 2007-2012 B.A.T.M.A.N. contributors:
+/* Copyright (C) 2007-2012 B.A.T.M.A.N. contributors:
*
* Marek Lindner, Simon Wunderlich, Antonio Quartulli
*
@@ -16,7 +15,6 @@
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301, USA
- *
*/
#include "main.h"
@@ -31,44 +29,46 @@
#include <linux/crc16.h>
-static void send_roam_adv(struct bat_priv *bat_priv, uint8_t *client,
- struct orig_node *orig_node);
-static void tt_purge(struct work_struct *work);
-static void tt_global_del_orig_list(struct tt_global_entry *tt_global_entry);
+static void batadv_send_roam_adv(struct batadv_priv *bat_priv, uint8_t *client,
+ struct batadv_orig_node *orig_node);
+static void batadv_tt_purge(struct work_struct *work);
+static void
+batadv_tt_global_del_orig_list(struct batadv_tt_global_entry *tt_global_entry);
/* returns 1 if they are the same mac addr */
-static int compare_tt(const struct hlist_node *node, const void *data2)
+static int batadv_compare_tt(const struct hlist_node *node, const void *data2)
{
- const void *data1 = container_of(node, struct tt_common_entry,
+ const void *data1 = container_of(node, struct batadv_tt_common_entry,
hash_entry);
return (memcmp(data1, data2, ETH_ALEN) == 0 ? 1 : 0);
}
-static void tt_start_timer(struct bat_priv *bat_priv)
+static void batadv_tt_start_timer(struct batadv_priv *bat_priv)
{
- INIT_DELAYED_WORK(&bat_priv->tt_work, tt_purge);
- queue_delayed_work(bat_event_workqueue, &bat_priv->tt_work,
+ INIT_DELAYED_WORK(&bat_priv->tt_work, batadv_tt_purge);
+ queue_delayed_work(batadv_event_workqueue, &bat_priv->tt_work,
msecs_to_jiffies(5000));
}
-static struct tt_common_entry *tt_hash_find(struct hashtable_t *hash,
- const void *data)
+static struct batadv_tt_common_entry *
+batadv_tt_hash_find(struct batadv_hashtable *hash, const void *data)
{
struct hlist_head *head;
struct hlist_node *node;
- struct tt_common_entry *tt_common_entry, *tt_common_entry_tmp = NULL;
+ struct batadv_tt_common_entry *tt_common_entry;
+ struct batadv_tt_common_entry *tt_common_entry_tmp = NULL;
uint32_t index;
if (!hash)
return NULL;
- index = choose_orig(data, hash->size);
+ index = batadv_choose_orig(data, hash->size);
head = &hash->table[index];
rcu_read_lock();
hlist_for_each_entry_rcu(tt_common_entry, node, head, hash_entry) {
- if (!compare_eth(tt_common_entry, data))
+ if (!batadv_compare_eth(tt_common_entry, data))
continue;
if (!atomic_inc_not_zero(&tt_common_entry->refcount))
@@ -82,80 +82,87 @@ static struct tt_common_entry *tt_hash_find(struct hashtable_t *hash,
return tt_common_entry_tmp;
}
-static struct tt_local_entry *tt_local_hash_find(struct bat_priv *bat_priv,
- const void *data)
+static struct batadv_tt_local_entry *
+batadv_tt_local_hash_find(struct batadv_priv *bat_priv, const void *data)
{
- struct tt_common_entry *tt_common_entry;
- struct tt_local_entry *tt_local_entry = NULL;
+ struct batadv_tt_common_entry *tt_common_entry;
+ struct batadv_tt_local_entry *tt_local_entry = NULL;
- tt_common_entry = tt_hash_find(bat_priv->tt_local_hash, data);
+ tt_common_entry = batadv_tt_hash_find(bat_priv->tt_local_hash, data);
if (tt_common_entry)
tt_local_entry = container_of(tt_common_entry,
- struct tt_local_entry, common);
+ struct batadv_tt_local_entry,
+ common);
return tt_local_entry;
}
-static struct tt_global_entry *tt_global_hash_find(struct bat_priv *bat_priv,
- const void *data)
+static struct batadv_tt_global_entry *
+batadv_tt_global_hash_find(struct batadv_priv *bat_priv, const void *data)
{
- struct tt_common_entry *tt_common_entry;
- struct tt_global_entry *tt_global_entry = NULL;
+ struct batadv_tt_common_entry *tt_common_entry;
+ struct batadv_tt_global_entry *tt_global_entry = NULL;
- tt_common_entry = tt_hash_find(bat_priv->tt_global_hash, data);
+ tt_common_entry = batadv_tt_hash_find(bat_priv->tt_global_hash, data);
if (tt_common_entry)
tt_global_entry = container_of(tt_common_entry,
- struct tt_global_entry, common);
+ struct batadv_tt_global_entry,
+ common);
return tt_global_entry;
}
-static void tt_local_entry_free_ref(struct tt_local_entry *tt_local_entry)
+static void
+batadv_tt_local_entry_free_ref(struct batadv_tt_local_entry *tt_local_entry)
{
if (atomic_dec_and_test(&tt_local_entry->common.refcount))
kfree_rcu(tt_local_entry, common.rcu);
}
-static void tt_global_entry_free_rcu(struct rcu_head *rcu)
+static void batadv_tt_global_entry_free_rcu(struct rcu_head *rcu)
{
- struct tt_common_entry *tt_common_entry;
- struct tt_global_entry *tt_global_entry;
+ struct batadv_tt_common_entry *tt_common_entry;
+ struct batadv_tt_global_entry *tt_global_entry;
- tt_common_entry = container_of(rcu, struct tt_common_entry, rcu);
- tt_global_entry = container_of(tt_common_entry, struct tt_global_entry,
- common);
+ tt_common_entry = container_of(rcu, struct batadv_tt_common_entry, rcu);
+ tt_global_entry = container_of(tt_common_entry,
+ struct batadv_tt_global_entry, common);
kfree(tt_global_entry);
}
-static void tt_global_entry_free_ref(struct tt_global_entry *tt_global_entry)
+static void
+batadv_tt_global_entry_free_ref(struct batadv_tt_global_entry *tt_global_entry)
{
if (atomic_dec_and_test(&tt_global_entry->common.refcount)) {
- tt_global_del_orig_list(tt_global_entry);
+ batadv_tt_global_del_orig_list(tt_global_entry);
call_rcu(&tt_global_entry->common.rcu,
- tt_global_entry_free_rcu);
+ batadv_tt_global_entry_free_rcu);
}
}
-static void tt_orig_list_entry_free_rcu(struct rcu_head *rcu)
+static void batadv_tt_orig_list_entry_free_rcu(struct rcu_head *rcu)
{
- struct tt_orig_list_entry *orig_entry;
+ struct batadv_tt_orig_list_entry *orig_entry;
- orig_entry = container_of(rcu, struct tt_orig_list_entry, rcu);
- orig_node_free_ref(orig_entry->orig_node);
+ orig_entry = container_of(rcu, struct batadv_tt_orig_list_entry, rcu);
+ batadv_orig_node_free_ref(orig_entry->orig_node);
kfree(orig_entry);
}
-static void tt_orig_list_entry_free_ref(struct tt_orig_list_entry *orig_entry)
+static void
+batadv_tt_orig_list_entry_free_ref(struct batadv_tt_orig_list_entry *orig_entry)
{
/* to avoid race conditions, immediately decrease the tt counter */
atomic_dec(&orig_entry->orig_node->tt_size);
- call_rcu(&orig_entry->rcu, tt_orig_list_entry_free_rcu);
+ call_rcu(&orig_entry->rcu, batadv_tt_orig_list_entry_free_rcu);
}
-static void tt_local_event(struct bat_priv *bat_priv, const uint8_t *addr,
- uint8_t flags)
+static void batadv_tt_local_event(struct batadv_priv *bat_priv,
+ const uint8_t *addr, uint8_t flags)
{
- struct tt_change_node *tt_change_node;
+ struct batadv_tt_change_node *tt_change_node, *entry, *safe;
+ bool event_removed = false;
+ bool del_op_requested, del_op_entry;
tt_change_node = kmalloc(sizeof(*tt_change_node), GFP_ATOMIC);
@@ -165,50 +172,82 @@ static void tt_local_event(struct bat_priv *bat_priv, const uint8_t *addr,
tt_change_node->change.flags = flags;
memcpy(tt_change_node->change.addr, addr, ETH_ALEN);
+ del_op_requested = flags & BATADV_TT_CLIENT_DEL;
+
+ /* check for ADD+DEL or DEL+ADD events */
spin_lock_bh(&bat_priv->tt_changes_list_lock);
+ list_for_each_entry_safe(entry, safe, &bat_priv->tt_changes_list,
+ list) {
+ if (!batadv_compare_eth(entry->change.addr, addr))
+ continue;
+
+ /* DEL+ADD in the same orig interval have no effect and can be
+ * removed to avoid silly behaviour on the receiver side. The
+ * other way around (ADD+DEL) can happen in case of roaming of
+ * a client still in the NEW state. Roaming of NEW clients is
+ * now possible due to automatically recognition of "temporary"
+ * clients
+ */
+ del_op_entry = entry->change.flags & BATADV_TT_CLIENT_DEL;
+ if (!del_op_requested && del_op_entry)
+ goto del;
+ if (del_op_requested && !del_op_entry)
+ goto del;
+ continue;
+del:
+ list_del(&entry->list);
+ kfree(entry);
+ event_removed = true;
+ goto unlock;
+ }
+
/* track the change in the OGMinterval list */
list_add_tail(&tt_change_node->list, &bat_priv->tt_changes_list);
- atomic_inc(&bat_priv->tt_local_changes);
+
+unlock:
spin_unlock_bh(&bat_priv->tt_changes_list_lock);
- atomic_set(&bat_priv->tt_ogm_append_cnt, 0);
+ if (event_removed)
+ atomic_dec(&bat_priv->tt_local_changes);
+ else
+ atomic_inc(&bat_priv->tt_local_changes);
}
-int tt_len(int changes_num)
+int batadv_tt_len(int changes_num)
{
- return changes_num * sizeof(struct tt_change);
+ return changes_num * sizeof(struct batadv_tt_change);
}
-static int tt_local_init(struct bat_priv *bat_priv)
+static int batadv_tt_local_init(struct batadv_priv *bat_priv)
{
if (bat_priv->tt_local_hash)
- return 1;
+ return 0;
- bat_priv->tt_local_hash = hash_new(1024);
+ bat_priv->tt_local_hash = batadv_hash_new(1024);
if (!bat_priv->tt_local_hash)
- return 0;
+ return -ENOMEM;
- return 1;
+ return 0;
}
-void tt_local_add(struct net_device *soft_iface, const uint8_t *addr,
- int ifindex)
+void batadv_tt_local_add(struct net_device *soft_iface, const uint8_t *addr,
+ int ifindex)
{
- struct bat_priv *bat_priv = netdev_priv(soft_iface);
- struct tt_local_entry *tt_local_entry = NULL;
- struct tt_global_entry *tt_global_entry = NULL;
+ struct batadv_priv *bat_priv = netdev_priv(soft_iface);
+ struct batadv_tt_local_entry *tt_local_entry = NULL;
+ struct batadv_tt_global_entry *tt_global_entry = NULL;
struct hlist_head *head;
struct hlist_node *node;
- struct tt_orig_list_entry *orig_entry;
+ struct batadv_tt_orig_list_entry *orig_entry;
int hash_added;
- tt_local_entry = tt_local_hash_find(bat_priv, addr);
+ tt_local_entry = batadv_tt_local_hash_find(bat_priv, addr);
if (tt_local_entry) {
tt_local_entry->last_seen = jiffies;
- /* possibly unset the TT_CLIENT_PENDING flag */
- tt_local_entry->common.flags &= ~TT_CLIENT_PENDING;
+ /* possibly unset the BATADV_TT_CLIENT_PENDING flag */
+ tt_local_entry->common.flags &= ~BATADV_TT_CLIENT_PENDING;
goto out;
}
@@ -216,40 +255,42 @@ void tt_local_add(struct net_device *soft_iface, const uint8_t *addr,
if (!tt_local_entry)
goto out;
- bat_dbg(DBG_TT, bat_priv,
- "Creating new local tt entry: %pM (ttvn: %d)\n", addr,
- (uint8_t)atomic_read(&bat_priv->ttvn));
+ batadv_dbg(BATADV_DBG_TT, bat_priv,
+ "Creating new local tt entry: %pM (ttvn: %d)\n", addr,
+ (uint8_t)atomic_read(&bat_priv->ttvn));
memcpy(tt_local_entry->common.addr, addr, ETH_ALEN);
- tt_local_entry->common.flags = NO_FLAGS;
- if (is_wifi_iface(ifindex))
- tt_local_entry->common.flags |= TT_CLIENT_WIFI;
+ tt_local_entry->common.flags = BATADV_NO_FLAGS;
+ if (batadv_is_wifi_iface(ifindex))
+ tt_local_entry->common.flags |= BATADV_TT_CLIENT_WIFI;
atomic_set(&tt_local_entry->common.refcount, 2);
tt_local_entry->last_seen = jiffies;
/* the batman interface mac address should never be purged */
- if (compare_eth(addr, soft_iface->dev_addr))
- tt_local_entry->common.flags |= TT_CLIENT_NOPURGE;
+ if (batadv_compare_eth(addr, soft_iface->dev_addr))
+ tt_local_entry->common.flags |= BATADV_TT_CLIENT_NOPURGE;
/* The local entry has to be marked as NEW to avoid to send it in
* a full table response going out before the next ttvn increment
- * (consistency check) */
- tt_local_entry->common.flags |= TT_CLIENT_NEW;
+ * (consistency check)
+ */
+ tt_local_entry->common.flags |= BATADV_TT_CLIENT_NEW;
- hash_added = hash_add(bat_priv->tt_local_hash, compare_tt, choose_orig,
- &tt_local_entry->common,
- &tt_local_entry->common.hash_entry);
+ hash_added = batadv_hash_add(bat_priv->tt_local_hash, batadv_compare_tt,
+ batadv_choose_orig,
+ &tt_local_entry->common,
+ &tt_local_entry->common.hash_entry);
if (unlikely(hash_added != 0)) {
/* remove the reference for the hash */
- tt_local_entry_free_ref(tt_local_entry);
+ batadv_tt_local_entry_free_ref(tt_local_entry);
goto out;
}
- tt_local_event(bat_priv, addr, tt_local_entry->common.flags);
+ batadv_tt_local_event(bat_priv, addr, tt_local_entry->common.flags);
/* remove address from global hash if present */
- tt_global_entry = tt_global_hash_find(bat_priv, addr);
+ tt_global_entry = batadv_tt_global_hash_find(bat_priv, addr);
/* Check whether it is a roaming! */
if (tt_global_entry) {
@@ -259,31 +300,85 @@ void tt_local_add(struct net_device *soft_iface, const uint8_t *addr,
hlist_for_each_entry_rcu(orig_entry, node, head, list) {
orig_entry->orig_node->tt_poss_change = true;
- send_roam_adv(bat_priv, tt_global_entry->common.addr,
- orig_entry->orig_node);
+ batadv_send_roam_adv(bat_priv,
+ tt_global_entry->common.addr,
+ orig_entry->orig_node);
}
rcu_read_unlock();
/* The global entry has to be marked as ROAMING and
* has to be kept for consistency purpose
*/
- tt_global_entry->common.flags |= TT_CLIENT_ROAM;
+ tt_global_entry->common.flags |= BATADV_TT_CLIENT_ROAM;
tt_global_entry->roam_at = jiffies;
}
out:
if (tt_local_entry)
- tt_local_entry_free_ref(tt_local_entry);
+ batadv_tt_local_entry_free_ref(tt_local_entry);
if (tt_global_entry)
- tt_global_entry_free_ref(tt_global_entry);
+ batadv_tt_global_entry_free_ref(tt_global_entry);
+}
+
+static void batadv_tt_realloc_packet_buff(unsigned char **packet_buff,
+ int *packet_buff_len,
+ int min_packet_len,
+ int new_packet_len)
+{
+ unsigned char *new_buff;
+
+ new_buff = kmalloc(new_packet_len, GFP_ATOMIC);
+
+ /* keep old buffer if kmalloc should fail */
+ if (new_buff) {
+ memcpy(new_buff, *packet_buff, min_packet_len);
+ kfree(*packet_buff);
+ *packet_buff = new_buff;
+ *packet_buff_len = new_packet_len;
+ }
+}
+
+static void batadv_tt_prepare_packet_buff(struct batadv_priv *bat_priv,
+ unsigned char **packet_buff,
+ int *packet_buff_len,
+ int min_packet_len)
+{
+ struct batadv_hard_iface *primary_if;
+ int req_len;
+
+ primary_if = batadv_primary_if_get_selected(bat_priv);
+
+ req_len = min_packet_len;
+ req_len += batadv_tt_len(atomic_read(&bat_priv->tt_local_changes));
+
+ /* if we have too many changes for one packet don't send any
+ * and wait for the tt table request which will be fragmented
+ */
+ if ((!primary_if) || (req_len > primary_if->soft_iface->mtu))
+ req_len = min_packet_len;
+
+ batadv_tt_realloc_packet_buff(packet_buff, packet_buff_len,
+ min_packet_len, req_len);
+
+ if (primary_if)
+ batadv_hardif_free_ref(primary_if);
}
-int tt_changes_fill_buffer(struct bat_priv *bat_priv,
- unsigned char *buff, int buff_len)
+static int batadv_tt_changes_fill_buff(struct batadv_priv *bat_priv,
+ unsigned char **packet_buff,
+ int *packet_buff_len,
+ int min_packet_len)
{
- int count = 0, tot_changes = 0;
- struct tt_change_node *entry, *safe;
+ struct batadv_tt_change_node *entry, *safe;
+ int count = 0, tot_changes = 0, new_len;
+ unsigned char *tt_buff;
- if (buff_len > 0)
- tot_changes = buff_len / tt_len(1);
+ batadv_tt_prepare_packet_buff(bat_priv, packet_buff,
+ packet_buff_len, min_packet_len);
+
+ new_len = *packet_buff_len - min_packet_len;
+ tt_buff = *packet_buff + min_packet_len;
+
+ if (new_len > 0)
+ tot_changes = new_len / batadv_tt_len(1);
spin_lock_bh(&bat_priv->tt_changes_list_lock);
atomic_set(&bat_priv->tt_local_changes, 0);
@@ -291,8 +386,8 @@ int tt_changes_fill_buffer(struct bat_priv *bat_priv,
list_for_each_entry_safe(entry, safe, &bat_priv->tt_changes_list,
list) {
if (count < tot_changes) {
- memcpy(buff + tt_len(count),
- &entry->change, sizeof(struct tt_change));
+ memcpy(tt_buff + batadv_tt_len(count),
+ &entry->change, sizeof(struct batadv_tt_change));
count++;
}
list_del(&entry->list);
@@ -305,37 +400,35 @@ int tt_changes_fill_buffer(struct bat_priv *bat_priv,
kfree(bat_priv->tt_buff);
bat_priv->tt_buff_len = 0;
bat_priv->tt_buff = NULL;
- /* We check whether this new OGM has no changes due to size
- * problems */
- if (buff_len > 0) {
- /**
- * if kmalloc() fails we will reply with the full table
+ /* check whether this new OGM has no changes due to size problems */
+ if (new_len > 0) {
+ /* if kmalloc() fails we will reply with the full table
* instead of providing the diff
*/
- bat_priv->tt_buff = kmalloc(buff_len, GFP_ATOMIC);
+ bat_priv->tt_buff = kmalloc(new_len, GFP_ATOMIC);
if (bat_priv->tt_buff) {
- memcpy(bat_priv->tt_buff, buff, buff_len);
- bat_priv->tt_buff_len = buff_len;
+ memcpy(bat_priv->tt_buff, tt_buff, new_len);
+ bat_priv->tt_buff_len = new_len;
}
}
spin_unlock_bh(&bat_priv->tt_buff_lock);
- return tot_changes;
+ return count;
}
-int tt_local_seq_print_text(struct seq_file *seq, void *offset)
+int batadv_tt_local_seq_print_text(struct seq_file *seq, void *offset)
{
struct net_device *net_dev = (struct net_device *)seq->private;
- struct bat_priv *bat_priv = netdev_priv(net_dev);
- struct hashtable_t *hash = bat_priv->tt_local_hash;
- struct tt_common_entry *tt_common_entry;
- struct hard_iface *primary_if;
+ struct batadv_priv *bat_priv = netdev_priv(net_dev);
+ struct batadv_hashtable *hash = bat_priv->tt_local_hash;
+ struct batadv_tt_common_entry *tt_common_entry;
+ struct batadv_hard_iface *primary_if;
struct hlist_node *node;
struct hlist_head *head;
uint32_t i;
int ret = 0;
- primary_if = primary_if_get_selected(bat_priv);
+ primary_if = batadv_primary_if_get_selected(bat_priv);
if (!primary_if) {
ret = seq_printf(seq,
"BATMAN mesh %s disabled - please specify interfaces to enable it\n",
@@ -343,7 +436,7 @@ int tt_local_seq_print_text(struct seq_file *seq, void *offset)
goto out;
}
- if (primary_if->if_status != IF_ACTIVE) {
+ if (primary_if->if_status != BATADV_IF_ACTIVE) {
ret = seq_printf(seq,
"BATMAN mesh %s disabled - primary interface not active\n",
net_dev->name);
@@ -363,63 +456,94 @@ int tt_local_seq_print_text(struct seq_file *seq, void *offset)
seq_printf(seq, " * %pM [%c%c%c%c%c]\n",
tt_common_entry->addr,
(tt_common_entry->flags &
- TT_CLIENT_ROAM ? 'R' : '.'),
+ BATADV_TT_CLIENT_ROAM ? 'R' : '.'),
(tt_common_entry->flags &
- TT_CLIENT_NOPURGE ? 'P' : '.'),
+ BATADV_TT_CLIENT_NOPURGE ? 'P' : '.'),
(tt_common_entry->flags &
- TT_CLIENT_NEW ? 'N' : '.'),
+ BATADV_TT_CLIENT_NEW ? 'N' : '.'),
(tt_common_entry->flags &
- TT_CLIENT_PENDING ? 'X' : '.'),
+ BATADV_TT_CLIENT_PENDING ? 'X' : '.'),
(tt_common_entry->flags &
- TT_CLIENT_WIFI ? 'W' : '.'));
+ BATADV_TT_CLIENT_WIFI ? 'W' : '.'));
}
rcu_read_unlock();
}
out:
if (primary_if)
- hardif_free_ref(primary_if);
+ batadv_hardif_free_ref(primary_if);
return ret;
}
-static void tt_local_set_pending(struct bat_priv *bat_priv,
- struct tt_local_entry *tt_local_entry,
- uint16_t flags, const char *message)
+static void
+batadv_tt_local_set_pending(struct batadv_priv *bat_priv,
+ struct batadv_tt_local_entry *tt_local_entry,
+ uint16_t flags, const char *message)
{
- tt_local_event(bat_priv, tt_local_entry->common.addr,
- tt_local_entry->common.flags | flags);
+ batadv_tt_local_event(bat_priv, tt_local_entry->common.addr,
+ tt_local_entry->common.flags | flags);
/* The local client has to be marked as "pending to be removed" but has
* to be kept in the table in order to send it in a full table
- * response issued before the net ttvn increment (consistency check) */
- tt_local_entry->common.flags |= TT_CLIENT_PENDING;
+ * response issued before the net ttvn increment (consistency check)
+ */
+ tt_local_entry->common.flags |= BATADV_TT_CLIENT_PENDING;
- bat_dbg(DBG_TT, bat_priv,
- "Local tt entry (%pM) pending to be removed: %s\n",
- tt_local_entry->common.addr, message);
+ batadv_dbg(BATADV_DBG_TT, bat_priv,
+ "Local tt entry (%pM) pending to be removed: %s\n",
+ tt_local_entry->common.addr, message);
}
-void tt_local_remove(struct bat_priv *bat_priv, const uint8_t *addr,
- const char *message, bool roaming)
+void batadv_tt_local_remove(struct batadv_priv *bat_priv, const uint8_t *addr,
+ const char *message, bool roaming)
{
- struct tt_local_entry *tt_local_entry = NULL;
+ struct batadv_tt_local_entry *tt_local_entry = NULL;
+ uint16_t flags;
- tt_local_entry = tt_local_hash_find(bat_priv, addr);
+ tt_local_entry = batadv_tt_local_hash_find(bat_priv, addr);
if (!tt_local_entry)
goto out;
- tt_local_set_pending(bat_priv, tt_local_entry, TT_CLIENT_DEL |
- (roaming ? TT_CLIENT_ROAM : NO_FLAGS), message);
+ flags = BATADV_TT_CLIENT_DEL;
+ if (roaming)
+ flags |= BATADV_TT_CLIENT_ROAM;
+
+ batadv_tt_local_set_pending(bat_priv, tt_local_entry, flags, message);
out:
if (tt_local_entry)
- tt_local_entry_free_ref(tt_local_entry);
+ batadv_tt_local_entry_free_ref(tt_local_entry);
}
-static void tt_local_purge(struct bat_priv *bat_priv)
+static void batadv_tt_local_purge_list(struct batadv_priv *bat_priv,
+ struct hlist_head *head)
{
- struct hashtable_t *hash = bat_priv->tt_local_hash;
- struct tt_local_entry *tt_local_entry;
- struct tt_common_entry *tt_common_entry;
+ struct batadv_tt_local_entry *tt_local_entry;
+ struct batadv_tt_common_entry *tt_common_entry;
struct hlist_node *node, *node_tmp;
+
+ hlist_for_each_entry_safe(tt_common_entry, node, node_tmp, head,
+ hash_entry) {
+ tt_local_entry = container_of(tt_common_entry,
+ struct batadv_tt_local_entry,
+ common);
+ if (tt_local_entry->common.flags & BATADV_TT_CLIENT_NOPURGE)
+ continue;
+
+ /* entry already marked for deletion */
+ if (tt_local_entry->common.flags & BATADV_TT_CLIENT_PENDING)
+ continue;
+
+ if (!batadv_has_timed_out(tt_local_entry->last_seen,
+ BATADV_TT_LOCAL_TIMEOUT))
+ continue;
+
+ batadv_tt_local_set_pending(bat_priv, tt_local_entry,
+ BATADV_TT_CLIENT_DEL, "timed out");
+ }
+}
+
+static void batadv_tt_local_purge(struct batadv_priv *bat_priv)
+{
+ struct batadv_hashtable *hash = bat_priv->tt_local_hash;
struct hlist_head *head;
spinlock_t *list_lock; /* protects write access to the hash lists */
uint32_t i;
@@ -429,36 +553,18 @@ static void tt_local_purge(struct bat_priv *bat_priv)
list_lock = &hash->list_locks[i];
spin_lock_bh(list_lock);
- hlist_for_each_entry_safe(tt_common_entry, node, node_tmp,
- head, hash_entry) {
- tt_local_entry = container_of(tt_common_entry,
- struct tt_local_entry,
- common);
- if (tt_local_entry->common.flags & TT_CLIENT_NOPURGE)
- continue;
-
- /* entry already marked for deletion */
- if (tt_local_entry->common.flags & TT_CLIENT_PENDING)
- continue;
-
- if (!has_timed_out(tt_local_entry->last_seen,
- TT_LOCAL_TIMEOUT))
- continue;
-
- tt_local_set_pending(bat_priv, tt_local_entry,
- TT_CLIENT_DEL, "timed out");
- }
+ batadv_tt_local_purge_list(bat_priv, head);
spin_unlock_bh(list_lock);
}
}
-static void tt_local_table_free(struct bat_priv *bat_priv)
+static void batadv_tt_local_table_free(struct batadv_priv *bat_priv)
{
- struct hashtable_t *hash;
+ struct batadv_hashtable *hash;
spinlock_t *list_lock; /* protects write access to the hash lists */
- struct tt_common_entry *tt_common_entry;
- struct tt_local_entry *tt_local_entry;
+ struct batadv_tt_common_entry *tt_common_entry;
+ struct batadv_tt_local_entry *tt_local;
struct hlist_node *node, *node_tmp;
struct hlist_head *head;
uint32_t i;
@@ -476,35 +582,35 @@ static void tt_local_table_free(struct bat_priv *bat_priv)
hlist_for_each_entry_safe(tt_common_entry, node, node_tmp,
head, hash_entry) {
hlist_del_rcu(node);
- tt_local_entry = container_of(tt_common_entry,
- struct tt_local_entry,
- common);
- tt_local_entry_free_ref(tt_local_entry);
+ tt_local = container_of(tt_common_entry,
+ struct batadv_tt_local_entry,
+ common);
+ batadv_tt_local_entry_free_ref(tt_local);
}
spin_unlock_bh(list_lock);
}
- hash_destroy(hash);
+ batadv_hash_destroy(hash);
bat_priv->tt_local_hash = NULL;
}
-static int tt_global_init(struct bat_priv *bat_priv)
+static int batadv_tt_global_init(struct batadv_priv *bat_priv)
{
if (bat_priv->tt_global_hash)
- return 1;
+ return 0;
- bat_priv->tt_global_hash = hash_new(1024);
+ bat_priv->tt_global_hash = batadv_hash_new(1024);
if (!bat_priv->tt_global_hash)
- return 0;
+ return -ENOMEM;
- return 1;
+ return 0;
}
-static void tt_changes_list_free(struct bat_priv *bat_priv)
+static void batadv_tt_changes_list_free(struct batadv_priv *bat_priv)
{
- struct tt_change_node *entry, *safe;
+ struct batadv_tt_change_node *entry, *safe;
spin_lock_bh(&bat_priv->tt_changes_list_lock);
@@ -521,10 +627,11 @@ static void tt_changes_list_free(struct bat_priv *bat_priv)
/* find out if an orig_node is already in the list of a tt_global_entry.
* returns 1 if found, 0 otherwise
*/
-static bool tt_global_entry_has_orig(const struct tt_global_entry *entry,
- const struct orig_node *orig_node)
+static bool
+batadv_tt_global_entry_has_orig(const struct batadv_tt_global_entry *entry,
+ const struct batadv_orig_node *orig_node)
{
- struct tt_orig_list_entry *tmp_orig_entry;
+ struct batadv_tt_orig_list_entry *tmp_orig_entry;
const struct hlist_head *head;
struct hlist_node *node;
bool found = false;
@@ -541,11 +648,11 @@ static bool tt_global_entry_has_orig(const struct tt_global_entry *entry,
return found;
}
-static void tt_global_add_orig_entry(struct tt_global_entry *tt_global_entry,
- struct orig_node *orig_node,
- int ttvn)
+static void
+batadv_tt_global_add_orig_entry(struct batadv_tt_global_entry *tt_global_entry,
+ struct batadv_orig_node *orig_node, int ttvn)
{
- struct tt_orig_list_entry *orig_entry;
+ struct batadv_tt_orig_list_entry *orig_entry;
orig_entry = kzalloc(sizeof(*orig_entry), GFP_ATOMIC);
if (!orig_entry)
@@ -564,91 +671,95 @@ static void tt_global_add_orig_entry(struct tt_global_entry *tt_global_entry,
}
/* caller must hold orig_node refcount */
-int tt_global_add(struct bat_priv *bat_priv, struct orig_node *orig_node,
- const unsigned char *tt_addr, uint8_t ttvn, bool roaming,
- bool wifi)
+int batadv_tt_global_add(struct batadv_priv *bat_priv,
+ struct batadv_orig_node *orig_node,
+ const unsigned char *tt_addr, uint8_t flags,
+ uint8_t ttvn)
{
- struct tt_global_entry *tt_global_entry = NULL;
+ struct batadv_tt_global_entry *tt_global_entry = NULL;
int ret = 0;
int hash_added;
+ struct batadv_tt_common_entry *common;
- tt_global_entry = tt_global_hash_find(bat_priv, tt_addr);
+ tt_global_entry = batadv_tt_global_hash_find(bat_priv, tt_addr);
if (!tt_global_entry) {
- tt_global_entry = kzalloc(sizeof(*tt_global_entry),
- GFP_ATOMIC);
+ tt_global_entry = kzalloc(sizeof(*tt_global_entry), GFP_ATOMIC);
if (!tt_global_entry)
goto out;
- memcpy(tt_global_entry->common.addr, tt_addr, ETH_ALEN);
+ common = &tt_global_entry->common;
+ memcpy(common->addr, tt_addr, ETH_ALEN);
- tt_global_entry->common.flags = NO_FLAGS;
+ common->flags = flags;
tt_global_entry->roam_at = 0;
- atomic_set(&tt_global_entry->common.refcount, 2);
+ atomic_set(&common->refcount, 2);
INIT_HLIST_HEAD(&tt_global_entry->orig_list);
spin_lock_init(&tt_global_entry->list_lock);
- hash_added = hash_add(bat_priv->tt_global_hash, compare_tt,
- choose_orig, &tt_global_entry->common,
- &tt_global_entry->common.hash_entry);
+ hash_added = batadv_hash_add(bat_priv->tt_global_hash,
+ batadv_compare_tt,
+ batadv_choose_orig, common,
+ &common->hash_entry);
if (unlikely(hash_added != 0)) {
/* remove the reference for the hash */
- tt_global_entry_free_ref(tt_global_entry);
+ batadv_tt_global_entry_free_ref(tt_global_entry);
goto out_remove;
}
- tt_global_add_orig_entry(tt_global_entry, orig_node, ttvn);
+ batadv_tt_global_add_orig_entry(tt_global_entry, orig_node,
+ ttvn);
} else {
/* there is already a global entry, use this one. */
- /* If there is the TT_CLIENT_ROAM flag set, there is only one
- * originator left in the list and we previously received a
+ /* If there is the BATADV_TT_CLIENT_ROAM flag set, there is only
+ * one originator left in the list and we previously received a
* delete + roaming change for this originator.
*
* We should first delete the old originator before adding the
* new one.
*/
- if (tt_global_entry->common.flags & TT_CLIENT_ROAM) {
- tt_global_del_orig_list(tt_global_entry);
- tt_global_entry->common.flags &= ~TT_CLIENT_ROAM;
+ if (tt_global_entry->common.flags & BATADV_TT_CLIENT_ROAM) {
+ batadv_tt_global_del_orig_list(tt_global_entry);
+ tt_global_entry->common.flags &= ~BATADV_TT_CLIENT_ROAM;
tt_global_entry->roam_at = 0;
}
- if (!tt_global_entry_has_orig(tt_global_entry, orig_node))
- tt_global_add_orig_entry(tt_global_entry, orig_node,
- ttvn);
+ if (!batadv_tt_global_entry_has_orig(tt_global_entry,
+ orig_node))
+ batadv_tt_global_add_orig_entry(tt_global_entry,
+ orig_node, ttvn);
}
- if (wifi)
- tt_global_entry->common.flags |= TT_CLIENT_WIFI;
-
- bat_dbg(DBG_TT, bat_priv,
- "Creating new global tt entry: %pM (via %pM)\n",
- tt_global_entry->common.addr, orig_node->orig);
+ batadv_dbg(BATADV_DBG_TT, bat_priv,
+ "Creating new global tt entry: %pM (via %pM)\n",
+ tt_global_entry->common.addr, orig_node->orig);
out_remove:
/* remove address from local hash if present */
- tt_local_remove(bat_priv, tt_global_entry->common.addr,
- "global tt received", roaming);
+ batadv_tt_local_remove(bat_priv, tt_global_entry->common.addr,
+ "global tt received",
+ flags & BATADV_TT_CLIENT_ROAM);
ret = 1;
out:
if (tt_global_entry)
- tt_global_entry_free_ref(tt_global_entry);
+ batadv_tt_global_entry_free_ref(tt_global_entry);
return ret;
}
/* print all orig nodes who announce the address for this global entry.
* it is assumed that the caller holds rcu_read_lock();
*/
-static void tt_global_print_entry(struct tt_global_entry *tt_global_entry,
- struct seq_file *seq)
+static void
+batadv_tt_global_print_entry(struct batadv_tt_global_entry *tt_global_entry,
+ struct seq_file *seq)
{
struct hlist_head *head;
struct hlist_node *node;
- struct tt_orig_list_entry *orig_entry;
- struct tt_common_entry *tt_common_entry;
+ struct batadv_tt_orig_list_entry *orig_entry;
+ struct batadv_tt_common_entry *tt_common_entry;
uint16_t flags;
uint8_t last_ttvn;
@@ -662,25 +773,25 @@ static void tt_global_print_entry(struct tt_global_entry *tt_global_entry,
seq_printf(seq, " * %pM (%3u) via %pM (%3u) [%c%c]\n",
tt_global_entry->common.addr, orig_entry->ttvn,
orig_entry->orig_node->orig, last_ttvn,
- (flags & TT_CLIENT_ROAM ? 'R' : '.'),
- (flags & TT_CLIENT_WIFI ? 'W' : '.'));
+ (flags & BATADV_TT_CLIENT_ROAM ? 'R' : '.'),
+ (flags & BATADV_TT_CLIENT_WIFI ? 'W' : '.'));
}
}
-int tt_global_seq_print_text(struct seq_file *seq, void *offset)
+int batadv_tt_global_seq_print_text(struct seq_file *seq, void *offset)
{
struct net_device *net_dev = (struct net_device *)seq->private;
- struct bat_priv *bat_priv = netdev_priv(net_dev);
- struct hashtable_t *hash = bat_priv->tt_global_hash;
- struct tt_common_entry *tt_common_entry;
- struct tt_global_entry *tt_global_entry;
- struct hard_iface *primary_if;
+ struct batadv_priv *bat_priv = netdev_priv(net_dev);
+ struct batadv_hashtable *hash = bat_priv->tt_global_hash;
+ struct batadv_tt_common_entry *tt_common_entry;
+ struct batadv_tt_global_entry *tt_global;
+ struct batadv_hard_iface *primary_if;
struct hlist_node *node;
struct hlist_head *head;
uint32_t i;
int ret = 0;
- primary_if = primary_if_get_selected(bat_priv);
+ primary_if = batadv_primary_if_get_selected(bat_priv);
if (!primary_if) {
ret = seq_printf(seq,
"BATMAN mesh %s disabled - please specify interfaces to enable it\n",
@@ -688,7 +799,7 @@ int tt_global_seq_print_text(struct seq_file *seq, void *offset)
goto out;
}
- if (primary_if->if_status != IF_ACTIVE) {
+ if (primary_if->if_status != BATADV_IF_ACTIVE) {
ret = seq_printf(seq,
"BATMAN mesh %s disabled - primary interface not active\n",
net_dev->name);
@@ -707,87 +818,91 @@ int tt_global_seq_print_text(struct seq_file *seq, void *offset)
rcu_read_lock();
hlist_for_each_entry_rcu(tt_common_entry, node,
head, hash_entry) {
- tt_global_entry = container_of(tt_common_entry,
- struct tt_global_entry,
- common);
- tt_global_print_entry(tt_global_entry, seq);
+ tt_global = container_of(tt_common_entry,
+ struct batadv_tt_global_entry,
+ common);
+ batadv_tt_global_print_entry(tt_global, seq);
}
rcu_read_unlock();
}
out:
if (primary_if)
- hardif_free_ref(primary_if);
+ batadv_hardif_free_ref(primary_if);
return ret;
}
/* deletes the orig list of a tt_global_entry */
-static void tt_global_del_orig_list(struct tt_global_entry *tt_global_entry)
+static void
+batadv_tt_global_del_orig_list(struct batadv_tt_global_entry *tt_global_entry)
{
struct hlist_head *head;
struct hlist_node *node, *safe;
- struct tt_orig_list_entry *orig_entry;
+ struct batadv_tt_orig_list_entry *orig_entry;
spin_lock_bh(&tt_global_entry->list_lock);
head = &tt_global_entry->orig_list;
hlist_for_each_entry_safe(orig_entry, node, safe, head, list) {
hlist_del_rcu(node);
- tt_orig_list_entry_free_ref(orig_entry);
+ batadv_tt_orig_list_entry_free_ref(orig_entry);
}
spin_unlock_bh(&tt_global_entry->list_lock);
}
-static void tt_global_del_orig_entry(struct bat_priv *bat_priv,
- struct tt_global_entry *tt_global_entry,
- struct orig_node *orig_node,
- const char *message)
+static void
+batadv_tt_global_del_orig_entry(struct batadv_priv *bat_priv,
+ struct batadv_tt_global_entry *tt_global_entry,
+ struct batadv_orig_node *orig_node,
+ const char *message)
{
struct hlist_head *head;
struct hlist_node *node, *safe;
- struct tt_orig_list_entry *orig_entry;
+ struct batadv_tt_orig_list_entry *orig_entry;
spin_lock_bh(&tt_global_entry->list_lock);
head = &tt_global_entry->orig_list;
hlist_for_each_entry_safe(orig_entry, node, safe, head, list) {
if (orig_entry->orig_node == orig_node) {
- bat_dbg(DBG_TT, bat_priv,
- "Deleting %pM from global tt entry %pM: %s\n",
- orig_node->orig, tt_global_entry->common.addr,
- message);
+ batadv_dbg(BATADV_DBG_TT, bat_priv,
+ "Deleting %pM from global tt entry %pM: %s\n",
+ orig_node->orig,
+ tt_global_entry->common.addr, message);
hlist_del_rcu(node);
- tt_orig_list_entry_free_ref(orig_entry);
+ batadv_tt_orig_list_entry_free_ref(orig_entry);
}
}
spin_unlock_bh(&tt_global_entry->list_lock);
}
-static void tt_global_del_struct(struct bat_priv *bat_priv,
- struct tt_global_entry *tt_global_entry,
- const char *message)
+static void
+batadv_tt_global_del_struct(struct batadv_priv *bat_priv,
+ struct batadv_tt_global_entry *tt_global_entry,
+ const char *message)
{
- bat_dbg(DBG_TT, bat_priv,
- "Deleting global tt entry %pM: %s\n",
- tt_global_entry->common.addr, message);
+ batadv_dbg(BATADV_DBG_TT, bat_priv,
+ "Deleting global tt entry %pM: %s\n",
+ tt_global_entry->common.addr, message);
- hash_remove(bat_priv->tt_global_hash, compare_tt, choose_orig,
- tt_global_entry->common.addr);
- tt_global_entry_free_ref(tt_global_entry);
+ batadv_hash_remove(bat_priv->tt_global_hash, batadv_compare_tt,
+ batadv_choose_orig, tt_global_entry->common.addr);
+ batadv_tt_global_entry_free_ref(tt_global_entry);
}
/* If the client is to be deleted, we check if it is the last origantor entry
- * within tt_global entry. If yes, we set the TT_CLIENT_ROAM flag and the timer,
- * otherwise we simply remove the originator scheduled for deletion.
+ * within tt_global entry. If yes, we set the BATADV_TT_CLIENT_ROAM flag and the
+ * timer, otherwise we simply remove the originator scheduled for deletion.
*/
-static void tt_global_del_roaming(struct bat_priv *bat_priv,
- struct tt_global_entry *tt_global_entry,
- struct orig_node *orig_node,
- const char *message)
+static void
+batadv_tt_global_del_roaming(struct batadv_priv *bat_priv,
+ struct batadv_tt_global_entry *tt_global_entry,
+ struct batadv_orig_node *orig_node,
+ const char *message)
{
bool last_entry = true;
struct hlist_head *head;
struct hlist_node *node;
- struct tt_orig_list_entry *orig_entry;
+ struct batadv_tt_orig_list_entry *orig_entry;
/* no local entry exists, case 1:
* Check if this is the last one or if other entries exist.
@@ -805,37 +920,37 @@ static void tt_global_del_roaming(struct bat_priv *bat_priv,
if (last_entry) {
/* its the last one, mark for roaming. */
- tt_global_entry->common.flags |= TT_CLIENT_ROAM;
+ tt_global_entry->common.flags |= BATADV_TT_CLIENT_ROAM;
tt_global_entry->roam_at = jiffies;
} else
/* there is another entry, we can simply delete this
* one and can still use the other one.
*/
- tt_global_del_orig_entry(bat_priv, tt_global_entry,
- orig_node, message);
+ batadv_tt_global_del_orig_entry(bat_priv, tt_global_entry,
+ orig_node, message);
}
-static void tt_global_del(struct bat_priv *bat_priv,
- struct orig_node *orig_node,
- const unsigned char *addr,
- const char *message, bool roaming)
+static void batadv_tt_global_del(struct batadv_priv *bat_priv,
+ struct batadv_orig_node *orig_node,
+ const unsigned char *addr,
+ const char *message, bool roaming)
{
- struct tt_global_entry *tt_global_entry = NULL;
- struct tt_local_entry *tt_local_entry = NULL;
+ struct batadv_tt_global_entry *tt_global_entry = NULL;
+ struct batadv_tt_local_entry *local_entry = NULL;
- tt_global_entry = tt_global_hash_find(bat_priv, addr);
+ tt_global_entry = batadv_tt_global_hash_find(bat_priv, addr);
if (!tt_global_entry)
goto out;
if (!roaming) {
- tt_global_del_orig_entry(bat_priv, tt_global_entry, orig_node,
- message);
+ batadv_tt_global_del_orig_entry(bat_priv, tt_global_entry,
+ orig_node, message);
if (hlist_empty(&tt_global_entry->orig_list))
- tt_global_del_struct(bat_priv, tt_global_entry,
- message);
+ batadv_tt_global_del_struct(bat_priv, tt_global_entry,
+ message);
goto out;
}
@@ -844,41 +959,42 @@ static void tt_global_del(struct bat_priv *bat_priv,
* event, there are two possibilities:
* 1) the client roamed from node A to node B => if there
* is only one originator left for this client, we mark
- * it with TT_CLIENT_ROAM, we start a timer and we
+ * it with BATADV_TT_CLIENT_ROAM, we start a timer and we
* wait for node B to claim it. In case of timeout
* the entry is purged.
*
* If there are other originators left, we directly delete
* the originator.
* 2) the client roamed to us => we can directly delete
- * the global entry, since it is useless now. */
-
- tt_local_entry = tt_local_hash_find(bat_priv,
- tt_global_entry->common.addr);
- if (tt_local_entry) {
+ * the global entry, since it is useless now.
+ */
+ local_entry = batadv_tt_local_hash_find(bat_priv,
+ tt_global_entry->common.addr);
+ if (local_entry) {
/* local entry exists, case 2: client roamed to us. */
- tt_global_del_orig_list(tt_global_entry);
- tt_global_del_struct(bat_priv, tt_global_entry, message);
+ batadv_tt_global_del_orig_list(tt_global_entry);
+ batadv_tt_global_del_struct(bat_priv, tt_global_entry, message);
} else
/* no local entry exists, case 1: check for roaming */
- tt_global_del_roaming(bat_priv, tt_global_entry, orig_node,
- message);
+ batadv_tt_global_del_roaming(bat_priv, tt_global_entry,
+ orig_node, message);
out:
if (tt_global_entry)
- tt_global_entry_free_ref(tt_global_entry);
- if (tt_local_entry)
- tt_local_entry_free_ref(tt_local_entry);
+ batadv_tt_global_entry_free_ref(tt_global_entry);
+ if (local_entry)
+ batadv_tt_local_entry_free_ref(local_entry);
}
-void tt_global_del_orig(struct bat_priv *bat_priv,
- struct orig_node *orig_node, const char *message)
+void batadv_tt_global_del_orig(struct batadv_priv *bat_priv,
+ struct batadv_orig_node *orig_node,
+ const char *message)
{
- struct tt_global_entry *tt_global_entry;
- struct tt_common_entry *tt_common_entry;
+ struct batadv_tt_global_entry *tt_global;
+ struct batadv_tt_common_entry *tt_common_entry;
uint32_t i;
- struct hashtable_t *hash = bat_priv->tt_global_hash;
+ struct batadv_hashtable *hash = bat_priv->tt_global_hash;
struct hlist_node *node, *safe;
struct hlist_head *head;
spinlock_t *list_lock; /* protects write access to the hash lists */
@@ -893,20 +1009,19 @@ void tt_global_del_orig(struct bat_priv *bat_priv,
spin_lock_bh(list_lock);
hlist_for_each_entry_safe(tt_common_entry, node, safe,
head, hash_entry) {
- tt_global_entry = container_of(tt_common_entry,
- struct tt_global_entry,
- common);
-
- tt_global_del_orig_entry(bat_priv, tt_global_entry,
- orig_node, message);
-
- if (hlist_empty(&tt_global_entry->orig_list)) {
- bat_dbg(DBG_TT, bat_priv,
- "Deleting global tt entry %pM: %s\n",
- tt_global_entry->common.addr,
- message);
+ tt_global = container_of(tt_common_entry,
+ struct batadv_tt_global_entry,
+ common);
+
+ batadv_tt_global_del_orig_entry(bat_priv, tt_global,
+ orig_node, message);
+
+ if (hlist_empty(&tt_global->orig_list)) {
+ batadv_dbg(BATADV_DBG_TT, bat_priv,
+ "Deleting global tt entry %pM: %s\n",
+ tt_global->common.addr, message);
hlist_del_rcu(node);
- tt_global_entry_free_ref(tt_global_entry);
+ batadv_tt_global_entry_free_ref(tt_global);
}
}
spin_unlock_bh(list_lock);
@@ -914,12 +1029,36 @@ void tt_global_del_orig(struct bat_priv *bat_priv,
orig_node->tt_initialised = false;
}
-static void tt_global_roam_purge(struct bat_priv *bat_priv)
+static void batadv_tt_global_roam_purge_list(struct batadv_priv *bat_priv,
+ struct hlist_head *head)
{
- struct hashtable_t *hash = bat_priv->tt_global_hash;
- struct tt_common_entry *tt_common_entry;
- struct tt_global_entry *tt_global_entry;
+ struct batadv_tt_common_entry *tt_common_entry;
+ struct batadv_tt_global_entry *tt_global_entry;
struct hlist_node *node, *node_tmp;
+
+ hlist_for_each_entry_safe(tt_common_entry, node, node_tmp, head,
+ hash_entry) {
+ tt_global_entry = container_of(tt_common_entry,
+ struct batadv_tt_global_entry,
+ common);
+ if (!(tt_global_entry->common.flags & BATADV_TT_CLIENT_ROAM))
+ continue;
+ if (!batadv_has_timed_out(tt_global_entry->roam_at,
+ BATADV_TT_CLIENT_ROAM_TIMEOUT))
+ continue;
+
+ batadv_dbg(BATADV_DBG_TT, bat_priv,
+ "Deleting global tt entry (%pM): Roaming timeout\n",
+ tt_global_entry->common.addr);
+
+ hlist_del_rcu(node);
+ batadv_tt_global_entry_free_ref(tt_global_entry);
+ }
+}
+
+static void batadv_tt_global_roam_purge(struct batadv_priv *bat_priv)
+{
+ struct batadv_hashtable *hash = bat_priv->tt_global_hash;
struct hlist_head *head;
spinlock_t *list_lock; /* protects write access to the hash lists */
uint32_t i;
@@ -929,35 +1068,18 @@ static void tt_global_roam_purge(struct bat_priv *bat_priv)
list_lock = &hash->list_locks[i];
spin_lock_bh(list_lock);
- hlist_for_each_entry_safe(tt_common_entry, node, node_tmp,
- head, hash_entry) {
- tt_global_entry = container_of(tt_common_entry,
- struct tt_global_entry,
- common);
- if (!(tt_global_entry->common.flags & TT_CLIENT_ROAM))
- continue;
- if (!has_timed_out(tt_global_entry->roam_at,
- TT_CLIENT_ROAM_TIMEOUT))
- continue;
-
- bat_dbg(DBG_TT, bat_priv,
- "Deleting global tt entry (%pM): Roaming timeout\n",
- tt_global_entry->common.addr);
-
- hlist_del_rcu(node);
- tt_global_entry_free_ref(tt_global_entry);
- }
+ batadv_tt_global_roam_purge_list(bat_priv, head);
spin_unlock_bh(list_lock);
}
}
-static void tt_global_table_free(struct bat_priv *bat_priv)
+static void batadv_tt_global_table_free(struct batadv_priv *bat_priv)
{
- struct hashtable_t *hash;
+ struct batadv_hashtable *hash;
spinlock_t *list_lock; /* protects write access to the hash lists */
- struct tt_common_entry *tt_common_entry;
- struct tt_global_entry *tt_global_entry;
+ struct batadv_tt_common_entry *tt_common_entry;
+ struct batadv_tt_global_entry *tt_global;
struct hlist_node *node, *node_tmp;
struct hlist_head *head;
uint32_t i;
@@ -975,56 +1097,60 @@ static void tt_global_table_free(struct bat_priv *bat_priv)
hlist_for_each_entry_safe(tt_common_entry, node, node_tmp,
head, hash_entry) {
hlist_del_rcu(node);
- tt_global_entry = container_of(tt_common_entry,
- struct tt_global_entry,
- common);
- tt_global_entry_free_ref(tt_global_entry);
+ tt_global = container_of(tt_common_entry,
+ struct batadv_tt_global_entry,
+ common);
+ batadv_tt_global_entry_free_ref(tt_global);
}
spin_unlock_bh(list_lock);
}
- hash_destroy(hash);
+ batadv_hash_destroy(hash);
bat_priv->tt_global_hash = NULL;
}
-static bool _is_ap_isolated(struct tt_local_entry *tt_local_entry,
- struct tt_global_entry *tt_global_entry)
+static bool
+_batadv_is_ap_isolated(struct batadv_tt_local_entry *tt_local_entry,
+ struct batadv_tt_global_entry *tt_global_entry)
{
bool ret = false;
- if (tt_local_entry->common.flags & TT_CLIENT_WIFI &&
- tt_global_entry->common.flags & TT_CLIENT_WIFI)
+ if (tt_local_entry->common.flags & BATADV_TT_CLIENT_WIFI &&
+ tt_global_entry->common.flags & BATADV_TT_CLIENT_WIFI)
ret = true;
return ret;
}
-struct orig_node *transtable_search(struct bat_priv *bat_priv,
- const uint8_t *src, const uint8_t *addr)
+struct batadv_orig_node *batadv_transtable_search(struct batadv_priv *bat_priv,
+ const uint8_t *src,
+ const uint8_t *addr)
{
- struct tt_local_entry *tt_local_entry = NULL;
- struct tt_global_entry *tt_global_entry = NULL;
- struct orig_node *orig_node = NULL;
- struct neigh_node *router = NULL;
+ struct batadv_tt_local_entry *tt_local_entry = NULL;
+ struct batadv_tt_global_entry *tt_global_entry = NULL;
+ struct batadv_orig_node *orig_node = NULL;
+ struct batadv_neigh_node *router = NULL;
struct hlist_head *head;
struct hlist_node *node;
- struct tt_orig_list_entry *orig_entry;
+ struct batadv_tt_orig_list_entry *orig_entry;
int best_tq;
if (src && atomic_read(&bat_priv->ap_isolation)) {
- tt_local_entry = tt_local_hash_find(bat_priv, src);
+ tt_local_entry = batadv_tt_local_hash_find(bat_priv, src);
if (!tt_local_entry)
goto out;
}
- tt_global_entry = tt_global_hash_find(bat_priv, addr);
+ tt_global_entry = batadv_tt_global_hash_find(bat_priv, addr);
if (!tt_global_entry)
goto out;
/* check whether the clients should not communicate due to AP
- * isolation */
- if (tt_local_entry && _is_ap_isolated(tt_local_entry, tt_global_entry))
+ * isolation
+ */
+ if (tt_local_entry &&
+ _batadv_is_ap_isolated(tt_local_entry, tt_global_entry))
goto out;
best_tq = 0;
@@ -1032,7 +1158,7 @@ struct orig_node *transtable_search(struct bat_priv *bat_priv,
rcu_read_lock();
head = &tt_global_entry->orig_list;
hlist_for_each_entry_rcu(orig_entry, node, head, list) {
- router = orig_node_get_router(orig_entry->orig_node);
+ router = batadv_orig_node_get_router(orig_entry->orig_node);
if (!router)
continue;
@@ -1040,7 +1166,7 @@ struct orig_node *transtable_search(struct bat_priv *bat_priv,
orig_node = orig_entry->orig_node;
best_tq = router->tq_avg;
}
- neigh_node_free_ref(router);
+ batadv_neigh_node_free_ref(router);
}
/* found anything? */
if (orig_node && !atomic_inc_not_zero(&orig_node->refcount))
@@ -1048,21 +1174,21 @@ struct orig_node *transtable_search(struct bat_priv *bat_priv,
rcu_read_unlock();
out:
if (tt_global_entry)
- tt_global_entry_free_ref(tt_global_entry);
+ batadv_tt_global_entry_free_ref(tt_global_entry);
if (tt_local_entry)
- tt_local_entry_free_ref(tt_local_entry);
+ batadv_tt_local_entry_free_ref(tt_local_entry);
return orig_node;
}
/* Calculates the checksum of the local table of a given orig_node */
-static uint16_t tt_global_crc(struct bat_priv *bat_priv,
- struct orig_node *orig_node)
+static uint16_t batadv_tt_global_crc(struct batadv_priv *bat_priv,
+ struct batadv_orig_node *orig_node)
{
uint16_t total = 0, total_one;
- struct hashtable_t *hash = bat_priv->tt_global_hash;
- struct tt_common_entry *tt_common_entry;
- struct tt_global_entry *tt_global_entry;
+ struct batadv_hashtable *hash = bat_priv->tt_global_hash;
+ struct batadv_tt_common_entry *tt_common;
+ struct batadv_tt_global_entry *tt_global;
struct hlist_node *node;
struct hlist_head *head;
uint32_t i;
@@ -1072,30 +1198,29 @@ static uint16_t tt_global_crc(struct bat_priv *bat_priv,
head = &hash->table[i];
rcu_read_lock();
- hlist_for_each_entry_rcu(tt_common_entry, node,
- head, hash_entry) {
- tt_global_entry = container_of(tt_common_entry,
- struct tt_global_entry,
- common);
+ hlist_for_each_entry_rcu(tt_common, node, head, hash_entry) {
+ tt_global = container_of(tt_common,
+ struct batadv_tt_global_entry,
+ common);
/* Roaming clients are in the global table for
* consistency only. They don't have to be
* taken into account while computing the
* global crc
*/
- if (tt_global_entry->common.flags & TT_CLIENT_ROAM)
+ if (tt_common->flags & BATADV_TT_CLIENT_ROAM)
continue;
/* find out if this global entry is announced by this
* originator
*/
- if (!tt_global_entry_has_orig(tt_global_entry,
- orig_node))
+ if (!batadv_tt_global_entry_has_orig(tt_global,
+ orig_node))
continue;
total_one = 0;
for (j = 0; j < ETH_ALEN; j++)
total_one = crc16_byte(total_one,
- tt_global_entry->common.addr[j]);
+ tt_common->addr[j]);
total ^= total_one;
}
rcu_read_unlock();
@@ -1105,11 +1230,11 @@ static uint16_t tt_global_crc(struct bat_priv *bat_priv,
}
/* Calculates the checksum of the local table */
-uint16_t tt_local_crc(struct bat_priv *bat_priv)
+static uint16_t batadv_tt_local_crc(struct batadv_priv *bat_priv)
{
uint16_t total = 0, total_one;
- struct hashtable_t *hash = bat_priv->tt_local_hash;
- struct tt_common_entry *tt_common_entry;
+ struct batadv_hashtable *hash = bat_priv->tt_local_hash;
+ struct batadv_tt_common_entry *tt_common;
struct hlist_node *node;
struct hlist_head *head;
uint32_t i;
@@ -1119,16 +1244,16 @@ uint16_t tt_local_crc(struct bat_priv *bat_priv)
head = &hash->table[i];
rcu_read_lock();
- hlist_for_each_entry_rcu(tt_common_entry, node,
- head, hash_entry) {
+ hlist_for_each_entry_rcu(tt_common, node, head, hash_entry) {
/* not yet committed clients have not to be taken into
- * account while computing the CRC */
- if (tt_common_entry->flags & TT_CLIENT_NEW)
+ * account while computing the CRC
+ */
+ if (tt_common->flags & BATADV_TT_CLIENT_NEW)
continue;
total_one = 0;
for (j = 0; j < ETH_ALEN; j++)
total_one = crc16_byte(total_one,
- tt_common_entry->addr[j]);
+ tt_common->addr[j]);
total ^= total_one;
}
rcu_read_unlock();
@@ -1137,9 +1262,9 @@ uint16_t tt_local_crc(struct bat_priv *bat_priv)
return total;
}
-static void tt_req_list_free(struct bat_priv *bat_priv)
+static void batadv_tt_req_list_free(struct batadv_priv *bat_priv)
{
- struct tt_req_node *node, *safe;
+ struct batadv_tt_req_node *node, *safe;
spin_lock_bh(&bat_priv->tt_req_list_lock);
@@ -1151,15 +1276,16 @@ static void tt_req_list_free(struct bat_priv *bat_priv)
spin_unlock_bh(&bat_priv->tt_req_list_lock);
}
-static void tt_save_orig_buffer(struct bat_priv *bat_priv,
- struct orig_node *orig_node,
- const unsigned char *tt_buff,
- uint8_t tt_num_changes)
+static void batadv_tt_save_orig_buffer(struct batadv_priv *bat_priv,
+ struct batadv_orig_node *orig_node,
+ const unsigned char *tt_buff,
+ uint8_t tt_num_changes)
{
- uint16_t tt_buff_len = tt_len(tt_num_changes);
+ uint16_t tt_buff_len = batadv_tt_len(tt_num_changes);
/* Replace the old buffer only if I received something in the
- * last OGM (the OGM could carry no changes) */
+ * last OGM (the OGM could carry no changes)
+ */
spin_lock_bh(&orig_node->tt_buff_lock);
if (tt_buff_len > 0) {
kfree(orig_node->tt_buff);
@@ -1173,13 +1299,14 @@ static void tt_save_orig_buffer(struct bat_priv *bat_priv,
spin_unlock_bh(&orig_node->tt_buff_lock);
}
-static void tt_req_purge(struct bat_priv *bat_priv)
+static void batadv_tt_req_purge(struct batadv_priv *bat_priv)
{
- struct tt_req_node *node, *safe;
+ struct batadv_tt_req_node *node, *safe;
spin_lock_bh(&bat_priv->tt_req_list_lock);
list_for_each_entry_safe(node, safe, &bat_priv->tt_req_list, list) {
- if (has_timed_out(node->issued_at, TT_REQUEST_TIMEOUT)) {
+ if (batadv_has_timed_out(node->issued_at,
+ BATADV_TT_REQUEST_TIMEOUT)) {
list_del(&node->list);
kfree(node);
}
@@ -1188,17 +1315,19 @@ static void tt_req_purge(struct bat_priv *bat_priv)
}
/* returns the pointer to the new tt_req_node struct if no request
- * has already been issued for this orig_node, NULL otherwise */
-static struct tt_req_node *new_tt_req_node(struct bat_priv *bat_priv,
- struct orig_node *orig_node)
+ * has already been issued for this orig_node, NULL otherwise
+ */
+static struct batadv_tt_req_node *
+batadv_new_tt_req_node(struct batadv_priv *bat_priv,
+ struct batadv_orig_node *orig_node)
{
- struct tt_req_node *tt_req_node_tmp, *tt_req_node = NULL;
+ struct batadv_tt_req_node *tt_req_node_tmp, *tt_req_node = NULL;
spin_lock_bh(&bat_priv->tt_req_list_lock);
list_for_each_entry(tt_req_node_tmp, &bat_priv->tt_req_list, list) {
- if (compare_eth(tt_req_node_tmp, orig_node) &&
- !has_timed_out(tt_req_node_tmp->issued_at,
- TT_REQUEST_TIMEOUT))
+ if (batadv_compare_eth(tt_req_node_tmp, orig_node) &&
+ !batadv_has_timed_out(tt_req_node_tmp->issued_at,
+ BATADV_TT_REQUEST_TIMEOUT))
goto unlock;
}
@@ -1216,63 +1345,67 @@ unlock:
}
/* data_ptr is useless here, but has to be kept to respect the prototype */
-static int tt_local_valid_entry(const void *entry_ptr, const void *data_ptr)
+static int batadv_tt_local_valid_entry(const void *entry_ptr,
+ const void *data_ptr)
{
- const struct tt_common_entry *tt_common_entry = entry_ptr;
+ const struct batadv_tt_common_entry *tt_common_entry = entry_ptr;
- if (tt_common_entry->flags & TT_CLIENT_NEW)
+ if (tt_common_entry->flags & BATADV_TT_CLIENT_NEW)
return 0;
return 1;
}
-static int tt_global_valid_entry(const void *entry_ptr, const void *data_ptr)
+static int batadv_tt_global_valid(const void *entry_ptr,
+ const void *data_ptr)
{
- const struct tt_common_entry *tt_common_entry = entry_ptr;
- const struct tt_global_entry *tt_global_entry;
- const struct orig_node *orig_node = data_ptr;
+ const struct batadv_tt_common_entry *tt_common_entry = entry_ptr;
+ const struct batadv_tt_global_entry *tt_global_entry;
+ const struct batadv_orig_node *orig_node = data_ptr;
- if (tt_common_entry->flags & TT_CLIENT_ROAM)
+ if (tt_common_entry->flags & BATADV_TT_CLIENT_ROAM)
return 0;
- tt_global_entry = container_of(tt_common_entry, struct tt_global_entry,
+ tt_global_entry = container_of(tt_common_entry,
+ struct batadv_tt_global_entry,
common);
- return tt_global_entry_has_orig(tt_global_entry, orig_node);
+ return batadv_tt_global_entry_has_orig(tt_global_entry, orig_node);
}
-static struct sk_buff *tt_response_fill_table(uint16_t tt_len, uint8_t ttvn,
- struct hashtable_t *hash,
- struct hard_iface *primary_if,
- int (*valid_cb)(const void *,
- const void *),
- void *cb_data)
+static struct sk_buff *
+batadv_tt_response_fill_table(uint16_t tt_len, uint8_t ttvn,
+ struct batadv_hashtable *hash,
+ struct batadv_hard_iface *primary_if,
+ int (*valid_cb)(const void *, const void *),
+ void *cb_data)
{
- struct tt_common_entry *tt_common_entry;
- struct tt_query_packet *tt_response;
- struct tt_change *tt_change;
+ struct batadv_tt_common_entry *tt_common_entry;
+ struct batadv_tt_query_packet *tt_response;
+ struct batadv_tt_change *tt_change;
struct hlist_node *node;
struct hlist_head *head;
struct sk_buff *skb = NULL;
uint16_t tt_tot, tt_count;
- ssize_t tt_query_size = sizeof(struct tt_query_packet);
+ ssize_t tt_query_size = sizeof(struct batadv_tt_query_packet);
uint32_t i;
+ size_t len;
if (tt_query_size + tt_len > primary_if->soft_iface->mtu) {
tt_len = primary_if->soft_iface->mtu - tt_query_size;
- tt_len -= tt_len % sizeof(struct tt_change);
+ tt_len -= tt_len % sizeof(struct batadv_tt_change);
}
- tt_tot = tt_len / sizeof(struct tt_change);
+ tt_tot = tt_len / sizeof(struct batadv_tt_change);
- skb = dev_alloc_skb(tt_query_size + tt_len + ETH_HLEN);
+ len = tt_query_size + tt_len;
+ skb = dev_alloc_skb(len + ETH_HLEN);
if (!skb)
goto out;
skb_reserve(skb, ETH_HLEN);
- tt_response = (struct tt_query_packet *)skb_put(skb,
- tt_query_size + tt_len);
+ tt_response = (struct batadv_tt_query_packet *)skb_put(skb, len);
tt_response->ttvn = ttvn;
- tt_change = (struct tt_change *)(skb->data + tt_query_size);
+ tt_change = (struct batadv_tt_change *)(skb->data + tt_query_size);
tt_count = 0;
rcu_read_lock();
@@ -1289,7 +1422,7 @@ static struct sk_buff *tt_response_fill_table(uint16_t tt_len, uint8_t ttvn,
memcpy(tt_change->addr, tt_common_entry->addr,
ETH_ALEN);
- tt_change->flags = NO_FLAGS;
+ tt_change->flags = BATADV_NO_FLAGS;
tt_count++;
tt_change++;
@@ -1298,72 +1431,78 @@ static struct sk_buff *tt_response_fill_table(uint16_t tt_len, uint8_t ttvn,
rcu_read_unlock();
/* store in the message the number of entries we have successfully
- * copied */
+ * copied
+ */
tt_response->tt_data = htons(tt_count);
out:
return skb;
}
-static int send_tt_request(struct bat_priv *bat_priv,
- struct orig_node *dst_orig_node,
- uint8_t ttvn, uint16_t tt_crc, bool full_table)
+static int batadv_send_tt_request(struct batadv_priv *bat_priv,
+ struct batadv_orig_node *dst_orig_node,
+ uint8_t ttvn, uint16_t tt_crc,
+ bool full_table)
{
struct sk_buff *skb = NULL;
- struct tt_query_packet *tt_request;
- struct neigh_node *neigh_node = NULL;
- struct hard_iface *primary_if;
- struct tt_req_node *tt_req_node = NULL;
+ struct batadv_tt_query_packet *tt_request;
+ struct batadv_neigh_node *neigh_node = NULL;
+ struct batadv_hard_iface *primary_if;
+ struct batadv_tt_req_node *tt_req_node = NULL;
int ret = 1;
+ size_t tt_req_len;
- primary_if = primary_if_get_selected(bat_priv);
+ primary_if = batadv_primary_if_get_selected(bat_priv);
if (!primary_if)
goto out;
/* The new tt_req will be issued only if I'm not waiting for a
- * reply from the same orig_node yet */
- tt_req_node = new_tt_req_node(bat_priv, dst_orig_node);
+ * reply from the same orig_node yet
+ */
+ tt_req_node = batadv_new_tt_req_node(bat_priv, dst_orig_node);
if (!tt_req_node)
goto out;
- skb = dev_alloc_skb(sizeof(struct tt_query_packet) + ETH_HLEN);
+ skb = dev_alloc_skb(sizeof(*tt_request) + ETH_HLEN);
if (!skb)
goto out;
skb_reserve(skb, ETH_HLEN);
- tt_request = (struct tt_query_packet *)skb_put(skb,
- sizeof(struct tt_query_packet));
+ tt_req_len = sizeof(*tt_request);
+ tt_request = (struct batadv_tt_query_packet *)skb_put(skb, tt_req_len);
- tt_request->header.packet_type = BAT_TT_QUERY;
- tt_request->header.version = COMPAT_VERSION;
+ tt_request->header.packet_type = BATADV_TT_QUERY;
+ tt_request->header.version = BATADV_COMPAT_VERSION;
memcpy(tt_request->src, primary_if->net_dev->dev_addr, ETH_ALEN);
memcpy(tt_request->dst, dst_orig_node->orig, ETH_ALEN);
- tt_request->header.ttl = TTL;
+ tt_request->header.ttl = BATADV_TTL;
tt_request->ttvn = ttvn;
tt_request->tt_data = htons(tt_crc);
- tt_request->flags = TT_REQUEST;
+ tt_request->flags = BATADV_TT_REQUEST;
if (full_table)
- tt_request->flags |= TT_FULL_TABLE;
+ tt_request->flags |= BATADV_TT_FULL_TABLE;
- neigh_node = orig_node_get_router(dst_orig_node);
+ neigh_node = batadv_orig_node_get_router(dst_orig_node);
if (!neigh_node)
goto out;
- bat_dbg(DBG_TT, bat_priv,
- "Sending TT_REQUEST to %pM via %pM [%c]\n",
- dst_orig_node->orig, neigh_node->addr,
- (full_table ? 'F' : '.'));
+ batadv_dbg(BATADV_DBG_TT, bat_priv,
+ "Sending TT_REQUEST to %pM via %pM [%c]\n",
+ dst_orig_node->orig, neigh_node->addr,
+ (full_table ? 'F' : '.'));
+
+ batadv_inc_counter(bat_priv, BATADV_CNT_TT_REQUEST_TX);
- send_skb_packet(skb, neigh_node->if_incoming, neigh_node->addr);
+ batadv_send_skb_packet(skb, neigh_node->if_incoming, neigh_node->addr);
ret = 0;
out:
if (neigh_node)
- neigh_node_free_ref(neigh_node);
+ batadv_neigh_node_free_ref(neigh_node);
if (primary_if)
- hardif_free_ref(primary_if);
+ batadv_hardif_free_ref(primary_if);
if (ret)
kfree_skb(skb);
if (ret && tt_req_node) {
@@ -1375,39 +1514,42 @@ out:
return ret;
}
-static bool send_other_tt_response(struct bat_priv *bat_priv,
- struct tt_query_packet *tt_request)
+static bool
+batadv_send_other_tt_response(struct batadv_priv *bat_priv,
+ struct batadv_tt_query_packet *tt_request)
{
- struct orig_node *req_dst_orig_node = NULL, *res_dst_orig_node = NULL;
- struct neigh_node *neigh_node = NULL;
- struct hard_iface *primary_if = NULL;
+ struct batadv_orig_node *req_dst_orig_node = NULL;
+ struct batadv_orig_node *res_dst_orig_node = NULL;
+ struct batadv_neigh_node *neigh_node = NULL;
+ struct batadv_hard_iface *primary_if = NULL;
uint8_t orig_ttvn, req_ttvn, ttvn;
int ret = false;
unsigned char *tt_buff;
bool full_table;
uint16_t tt_len, tt_tot;
struct sk_buff *skb = NULL;
- struct tt_query_packet *tt_response;
+ struct batadv_tt_query_packet *tt_response;
+ size_t len;
- bat_dbg(DBG_TT, bat_priv,
- "Received TT_REQUEST from %pM for ttvn: %u (%pM) [%c]\n",
- tt_request->src, tt_request->ttvn, tt_request->dst,
- (tt_request->flags & TT_FULL_TABLE ? 'F' : '.'));
+ batadv_dbg(BATADV_DBG_TT, bat_priv,
+ "Received TT_REQUEST from %pM for ttvn: %u (%pM) [%c]\n",
+ tt_request->src, tt_request->ttvn, tt_request->dst,
+ (tt_request->flags & BATADV_TT_FULL_TABLE ? 'F' : '.'));
/* Let's get the orig node of the REAL destination */
- req_dst_orig_node = orig_hash_find(bat_priv, tt_request->dst);
+ req_dst_orig_node = batadv_orig_hash_find(bat_priv, tt_request->dst);
if (!req_dst_orig_node)
goto out;
- res_dst_orig_node = orig_hash_find(bat_priv, tt_request->src);
+ res_dst_orig_node = batadv_orig_hash_find(bat_priv, tt_request->src);
if (!res_dst_orig_node)
goto out;
- neigh_node = orig_node_get_router(res_dst_orig_node);
+ neigh_node = batadv_orig_node_get_router(res_dst_orig_node);
if (!neigh_node)
goto out;
- primary_if = primary_if_get_selected(bat_priv);
+ primary_if = batadv_primary_if_get_selected(bat_priv);
if (!primary_if)
goto out;
@@ -1416,71 +1558,75 @@ static bool send_other_tt_response(struct bat_priv *bat_priv,
/* I don't have the requested data */
if (orig_ttvn != req_ttvn ||
- tt_request->tt_data != req_dst_orig_node->tt_crc)
+ tt_request->tt_data != htons(req_dst_orig_node->tt_crc))
goto out;
/* If the full table has been explicitly requested */
- if (tt_request->flags & TT_FULL_TABLE ||
+ if (tt_request->flags & BATADV_TT_FULL_TABLE ||
!req_dst_orig_node->tt_buff)
full_table = true;
else
full_table = false;
/* In this version, fragmentation is not implemented, then
- * I'll send only one packet with as much TT entries as I can */
+ * I'll send only one packet with as much TT entries as I can
+ */
if (!full_table) {
spin_lock_bh(&req_dst_orig_node->tt_buff_lock);
tt_len = req_dst_orig_node->tt_buff_len;
- tt_tot = tt_len / sizeof(struct tt_change);
+ tt_tot = tt_len / sizeof(struct batadv_tt_change);
- skb = dev_alloc_skb(sizeof(struct tt_query_packet) +
- tt_len + ETH_HLEN);
+ len = sizeof(*tt_response) + tt_len;
+ skb = dev_alloc_skb(len + ETH_HLEN);
if (!skb)
goto unlock;
skb_reserve(skb, ETH_HLEN);
- tt_response = (struct tt_query_packet *)skb_put(skb,
- sizeof(struct tt_query_packet) + tt_len);
+ tt_response = (struct batadv_tt_query_packet *)skb_put(skb,
+ len);
tt_response->ttvn = req_ttvn;
tt_response->tt_data = htons(tt_tot);
- tt_buff = skb->data + sizeof(struct tt_query_packet);
+ tt_buff = skb->data + sizeof(*tt_response);
/* Copy the last orig_node's OGM buffer */
memcpy(tt_buff, req_dst_orig_node->tt_buff,
req_dst_orig_node->tt_buff_len);
spin_unlock_bh(&req_dst_orig_node->tt_buff_lock);
} else {
- tt_len = (uint16_t)atomic_read(&req_dst_orig_node->tt_size) *
- sizeof(struct tt_change);
+ tt_len = (uint16_t)atomic_read(&req_dst_orig_node->tt_size);
+ tt_len *= sizeof(struct batadv_tt_change);
ttvn = (uint8_t)atomic_read(&req_dst_orig_node->last_ttvn);
- skb = tt_response_fill_table(tt_len, ttvn,
- bat_priv->tt_global_hash,
- primary_if, tt_global_valid_entry,
- req_dst_orig_node);
+ skb = batadv_tt_response_fill_table(tt_len, ttvn,
+ bat_priv->tt_global_hash,
+ primary_if,
+ batadv_tt_global_valid,
+ req_dst_orig_node);
if (!skb)
goto out;
- tt_response = (struct tt_query_packet *)skb->data;
+ tt_response = (struct batadv_tt_query_packet *)skb->data;
}
- tt_response->header.packet_type = BAT_TT_QUERY;
- tt_response->header.version = COMPAT_VERSION;
- tt_response->header.ttl = TTL;
+ tt_response->header.packet_type = BATADV_TT_QUERY;
+ tt_response->header.version = BATADV_COMPAT_VERSION;
+ tt_response->header.ttl = BATADV_TTL;
memcpy(tt_response->src, req_dst_orig_node->orig, ETH_ALEN);
memcpy(tt_response->dst, tt_request->src, ETH_ALEN);
- tt_response->flags = TT_RESPONSE;
+ tt_response->flags = BATADV_TT_RESPONSE;
if (full_table)
- tt_response->flags |= TT_FULL_TABLE;
+ tt_response->flags |= BATADV_TT_FULL_TABLE;
- bat_dbg(DBG_TT, bat_priv,
- "Sending TT_RESPONSE %pM via %pM for %pM (ttvn: %u)\n",
- res_dst_orig_node->orig, neigh_node->addr,
- req_dst_orig_node->orig, req_ttvn);
+ batadv_dbg(BATADV_DBG_TT, bat_priv,
+ "Sending TT_RESPONSE %pM via %pM for %pM (ttvn: %u)\n",
+ res_dst_orig_node->orig, neigh_node->addr,
+ req_dst_orig_node->orig, req_ttvn);
- send_skb_packet(skb, neigh_node->if_incoming, neigh_node->addr);
+ batadv_inc_counter(bat_priv, BATADV_CNT_TT_RESPONSE_TX);
+
+ batadv_send_skb_packet(skb, neigh_node->if_incoming, neigh_node->addr);
ret = true;
goto out;
@@ -1489,114 +1635,122 @@ unlock:
out:
if (res_dst_orig_node)
- orig_node_free_ref(res_dst_orig_node);
+ batadv_orig_node_free_ref(res_dst_orig_node);
if (req_dst_orig_node)
- orig_node_free_ref(req_dst_orig_node);
+ batadv_orig_node_free_ref(req_dst_orig_node);
if (neigh_node)
- neigh_node_free_ref(neigh_node);
+ batadv_neigh_node_free_ref(neigh_node);
if (primary_if)
- hardif_free_ref(primary_if);
+ batadv_hardif_free_ref(primary_if);
if (!ret)
kfree_skb(skb);
return ret;
}
-static bool send_my_tt_response(struct bat_priv *bat_priv,
- struct tt_query_packet *tt_request)
+
+static bool
+batadv_send_my_tt_response(struct batadv_priv *bat_priv,
+ struct batadv_tt_query_packet *tt_request)
{
- struct orig_node *orig_node = NULL;
- struct neigh_node *neigh_node = NULL;
- struct hard_iface *primary_if = NULL;
+ struct batadv_orig_node *orig_node = NULL;
+ struct batadv_neigh_node *neigh_node = NULL;
+ struct batadv_hard_iface *primary_if = NULL;
uint8_t my_ttvn, req_ttvn, ttvn;
int ret = false;
unsigned char *tt_buff;
bool full_table;
uint16_t tt_len, tt_tot;
struct sk_buff *skb = NULL;
- struct tt_query_packet *tt_response;
+ struct batadv_tt_query_packet *tt_response;
+ size_t len;
- bat_dbg(DBG_TT, bat_priv,
- "Received TT_REQUEST from %pM for ttvn: %u (me) [%c]\n",
- tt_request->src, tt_request->ttvn,
- (tt_request->flags & TT_FULL_TABLE ? 'F' : '.'));
+ batadv_dbg(BATADV_DBG_TT, bat_priv,
+ "Received TT_REQUEST from %pM for ttvn: %u (me) [%c]\n",
+ tt_request->src, tt_request->ttvn,
+ (tt_request->flags & BATADV_TT_FULL_TABLE ? 'F' : '.'));
my_ttvn = (uint8_t)atomic_read(&bat_priv->ttvn);
req_ttvn = tt_request->ttvn;
- orig_node = orig_hash_find(bat_priv, tt_request->src);
+ orig_node = batadv_orig_hash_find(bat_priv, tt_request->src);
if (!orig_node)
goto out;
- neigh_node = orig_node_get_router(orig_node);
+ neigh_node = batadv_orig_node_get_router(orig_node);
if (!neigh_node)
goto out;
- primary_if = primary_if_get_selected(bat_priv);
+ primary_if = batadv_primary_if_get_selected(bat_priv);
if (!primary_if)
goto out;
/* If the full table has been explicitly requested or the gap
- * is too big send the whole local translation table */
- if (tt_request->flags & TT_FULL_TABLE || my_ttvn != req_ttvn ||
+ * is too big send the whole local translation table
+ */
+ if (tt_request->flags & BATADV_TT_FULL_TABLE || my_ttvn != req_ttvn ||
!bat_priv->tt_buff)
full_table = true;
else
full_table = false;
/* In this version, fragmentation is not implemented, then
- * I'll send only one packet with as much TT entries as I can */
+ * I'll send only one packet with as much TT entries as I can
+ */
if (!full_table) {
spin_lock_bh(&bat_priv->tt_buff_lock);
tt_len = bat_priv->tt_buff_len;
- tt_tot = tt_len / sizeof(struct tt_change);
+ tt_tot = tt_len / sizeof(struct batadv_tt_change);
- skb = dev_alloc_skb(sizeof(struct tt_query_packet) +
- tt_len + ETH_HLEN);
+ len = sizeof(*tt_response) + tt_len;
+ skb = dev_alloc_skb(len + ETH_HLEN);
if (!skb)
goto unlock;
skb_reserve(skb, ETH_HLEN);
- tt_response = (struct tt_query_packet *)skb_put(skb,
- sizeof(struct tt_query_packet) + tt_len);
+ tt_response = (struct batadv_tt_query_packet *)skb_put(skb,
+ len);
tt_response->ttvn = req_ttvn;
tt_response->tt_data = htons(tt_tot);
- tt_buff = skb->data + sizeof(struct tt_query_packet);
+ tt_buff = skb->data + sizeof(*tt_response);
memcpy(tt_buff, bat_priv->tt_buff,
bat_priv->tt_buff_len);
spin_unlock_bh(&bat_priv->tt_buff_lock);
} else {
- tt_len = (uint16_t)atomic_read(&bat_priv->num_local_tt) *
- sizeof(struct tt_change);
+ tt_len = (uint16_t)atomic_read(&bat_priv->num_local_tt);
+ tt_len *= sizeof(struct batadv_tt_change);
ttvn = (uint8_t)atomic_read(&bat_priv->ttvn);
- skb = tt_response_fill_table(tt_len, ttvn,
- bat_priv->tt_local_hash,
- primary_if, tt_local_valid_entry,
- NULL);
+ skb = batadv_tt_response_fill_table(tt_len, ttvn,
+ bat_priv->tt_local_hash,
+ primary_if,
+ batadv_tt_local_valid_entry,
+ NULL);
if (!skb)
goto out;
- tt_response = (struct tt_query_packet *)skb->data;
+ tt_response = (struct batadv_tt_query_packet *)skb->data;
}
- tt_response->header.packet_type = BAT_TT_QUERY;
- tt_response->header.version = COMPAT_VERSION;
- tt_response->header.ttl = TTL;
+ tt_response->header.packet_type = BATADV_TT_QUERY;
+ tt_response->header.version = BATADV_COMPAT_VERSION;
+ tt_response->header.ttl = BATADV_TTL;
memcpy(tt_response->src, primary_if->net_dev->dev_addr, ETH_ALEN);
memcpy(tt_response->dst, tt_request->src, ETH_ALEN);
- tt_response->flags = TT_RESPONSE;
+ tt_response->flags = BATADV_TT_RESPONSE;
if (full_table)
- tt_response->flags |= TT_FULL_TABLE;
+ tt_response->flags |= BATADV_TT_FULL_TABLE;
- bat_dbg(DBG_TT, bat_priv,
- "Sending TT_RESPONSE to %pM via %pM [%c]\n",
- orig_node->orig, neigh_node->addr,
- (tt_response->flags & TT_FULL_TABLE ? 'F' : '.'));
+ batadv_dbg(BATADV_DBG_TT, bat_priv,
+ "Sending TT_RESPONSE to %pM via %pM [%c]\n",
+ orig_node->orig, neigh_node->addr,
+ (tt_response->flags & BATADV_TT_FULL_TABLE ? 'F' : '.'));
- send_skb_packet(skb, neigh_node->if_incoming, neigh_node->addr);
+ batadv_inc_counter(bat_priv, BATADV_CNT_TT_RESPONSE_TX);
+
+ batadv_send_skb_packet(skb, neigh_node->if_incoming, neigh_node->addr);
ret = true;
goto out;
@@ -1604,49 +1758,50 @@ unlock:
spin_unlock_bh(&bat_priv->tt_buff_lock);
out:
if (orig_node)
- orig_node_free_ref(orig_node);
+ batadv_orig_node_free_ref(orig_node);
if (neigh_node)
- neigh_node_free_ref(neigh_node);
+ batadv_neigh_node_free_ref(neigh_node);
if (primary_if)
- hardif_free_ref(primary_if);
+ batadv_hardif_free_ref(primary_if);
if (!ret)
kfree_skb(skb);
/* This packet was for me, so it doesn't need to be re-routed */
return true;
}
-bool send_tt_response(struct bat_priv *bat_priv,
- struct tt_query_packet *tt_request)
+bool batadv_send_tt_response(struct batadv_priv *bat_priv,
+ struct batadv_tt_query_packet *tt_request)
{
- if (is_my_mac(tt_request->dst)) {
+ if (batadv_is_my_mac(tt_request->dst)) {
/* don't answer backbone gws! */
- if (bla_is_backbone_gw_orig(bat_priv, tt_request->src))
+ if (batadv_bla_is_backbone_gw_orig(bat_priv, tt_request->src))
return true;
- return send_my_tt_response(bat_priv, tt_request);
+ return batadv_send_my_tt_response(bat_priv, tt_request);
} else {
- return send_other_tt_response(bat_priv, tt_request);
+ return batadv_send_other_tt_response(bat_priv, tt_request);
}
}
-static void _tt_update_changes(struct bat_priv *bat_priv,
- struct orig_node *orig_node,
- struct tt_change *tt_change,
- uint16_t tt_num_changes, uint8_t ttvn)
+static void _batadv_tt_update_changes(struct batadv_priv *bat_priv,
+ struct batadv_orig_node *orig_node,
+ struct batadv_tt_change *tt_change,
+ uint16_t tt_num_changes, uint8_t ttvn)
{
int i;
+ int roams;
for (i = 0; i < tt_num_changes; i++) {
- if ((tt_change + i)->flags & TT_CLIENT_DEL)
- tt_global_del(bat_priv, orig_node,
- (tt_change + i)->addr,
- "tt removed by changes",
- (tt_change + i)->flags & TT_CLIENT_ROAM);
- else
- if (!tt_global_add(bat_priv, orig_node,
- (tt_change + i)->addr, ttvn, false,
- (tt_change + i)->flags &
- TT_CLIENT_WIFI))
+ if ((tt_change + i)->flags & BATADV_TT_CLIENT_DEL) {
+ roams = (tt_change + i)->flags & BATADV_TT_CLIENT_ROAM;
+ batadv_tt_global_del(bat_priv, orig_node,
+ (tt_change + i)->addr,
+ "tt removed by changes",
+ roams);
+ } else {
+ if (!batadv_tt_global_add(bat_priv, orig_node,
+ (tt_change + i)->addr,
+ (tt_change + i)->flags, ttvn))
/* In case of problem while storing a
* global_entry, we stop the updating
* procedure without committing the
@@ -1654,25 +1809,27 @@ static void _tt_update_changes(struct bat_priv *bat_priv,
* corrupted data on tt_request
*/
return;
+ }
}
orig_node->tt_initialised = true;
}
-static void tt_fill_gtable(struct bat_priv *bat_priv,
- struct tt_query_packet *tt_response)
+static void batadv_tt_fill_gtable(struct batadv_priv *bat_priv,
+ struct batadv_tt_query_packet *tt_response)
{
- struct orig_node *orig_node = NULL;
+ struct batadv_orig_node *orig_node = NULL;
- orig_node = orig_hash_find(bat_priv, tt_response->src);
+ orig_node = batadv_orig_hash_find(bat_priv, tt_response->src);
if (!orig_node)
goto out;
/* Purge the old table first.. */
- tt_global_del_orig(bat_priv, orig_node, "Received full table");
+ batadv_tt_global_del_orig(bat_priv, orig_node, "Received full table");
- _tt_update_changes(bat_priv, orig_node,
- (struct tt_change *)(tt_response + 1),
- tt_response->tt_data, tt_response->ttvn);
+ _batadv_tt_update_changes(bat_priv, orig_node,
+ (struct batadv_tt_change *)(tt_response + 1),
+ ntohs(tt_response->tt_data),
+ tt_response->ttvn);
spin_lock_bh(&orig_node->tt_buff_lock);
kfree(orig_node->tt_buff);
@@ -1684,71 +1841,76 @@ static void tt_fill_gtable(struct bat_priv *bat_priv,
out:
if (orig_node)
- orig_node_free_ref(orig_node);
+ batadv_orig_node_free_ref(orig_node);
}
-static void tt_update_changes(struct bat_priv *bat_priv,
- struct orig_node *orig_node,
- uint16_t tt_num_changes, uint8_t ttvn,
- struct tt_change *tt_change)
+static void batadv_tt_update_changes(struct batadv_priv *bat_priv,
+ struct batadv_orig_node *orig_node,
+ uint16_t tt_num_changes, uint8_t ttvn,
+ struct batadv_tt_change *tt_change)
{
- _tt_update_changes(bat_priv, orig_node, tt_change, tt_num_changes,
- ttvn);
+ _batadv_tt_update_changes(bat_priv, orig_node, tt_change,
+ tt_num_changes, ttvn);
- tt_save_orig_buffer(bat_priv, orig_node, (unsigned char *)tt_change,
- tt_num_changes);
+ batadv_tt_save_orig_buffer(bat_priv, orig_node,
+ (unsigned char *)tt_change, tt_num_changes);
atomic_set(&orig_node->last_ttvn, ttvn);
}
-bool is_my_client(struct bat_priv *bat_priv, const uint8_t *addr)
+bool batadv_is_my_client(struct batadv_priv *bat_priv, const uint8_t *addr)
{
- struct tt_local_entry *tt_local_entry = NULL;
+ struct batadv_tt_local_entry *tt_local_entry = NULL;
bool ret = false;
- tt_local_entry = tt_local_hash_find(bat_priv, addr);
+ tt_local_entry = batadv_tt_local_hash_find(bat_priv, addr);
if (!tt_local_entry)
goto out;
/* Check if the client has been logically deleted (but is kept for
- * consistency purpose) */
- if (tt_local_entry->common.flags & TT_CLIENT_PENDING)
+ * consistency purpose)
+ */
+ if (tt_local_entry->common.flags & BATADV_TT_CLIENT_PENDING)
goto out;
ret = true;
out:
if (tt_local_entry)
- tt_local_entry_free_ref(tt_local_entry);
+ batadv_tt_local_entry_free_ref(tt_local_entry);
return ret;
}
-void handle_tt_response(struct bat_priv *bat_priv,
- struct tt_query_packet *tt_response)
+void batadv_handle_tt_response(struct batadv_priv *bat_priv,
+ struct batadv_tt_query_packet *tt_response)
{
- struct tt_req_node *node, *safe;
- struct orig_node *orig_node = NULL;
+ struct batadv_tt_req_node *node, *safe;
+ struct batadv_orig_node *orig_node = NULL;
+ struct batadv_tt_change *tt_change;
- bat_dbg(DBG_TT, bat_priv,
- "Received TT_RESPONSE from %pM for ttvn %d t_size: %d [%c]\n",
- tt_response->src, tt_response->ttvn, tt_response->tt_data,
- (tt_response->flags & TT_FULL_TABLE ? 'F' : '.'));
+ batadv_dbg(BATADV_DBG_TT, bat_priv,
+ "Received TT_RESPONSE from %pM for ttvn %d t_size: %d [%c]\n",
+ tt_response->src, tt_response->ttvn,
+ ntohs(tt_response->tt_data),
+ (tt_response->flags & BATADV_TT_FULL_TABLE ? 'F' : '.'));
/* we should have never asked a backbone gw */
- if (bla_is_backbone_gw_orig(bat_priv, tt_response->src))
+ if (batadv_bla_is_backbone_gw_orig(bat_priv, tt_response->src))
goto out;
- orig_node = orig_hash_find(bat_priv, tt_response->src);
+ orig_node = batadv_orig_hash_find(bat_priv, tt_response->src);
if (!orig_node)
goto out;
- if (tt_response->flags & TT_FULL_TABLE)
- tt_fill_gtable(bat_priv, tt_response);
- else
- tt_update_changes(bat_priv, orig_node, tt_response->tt_data,
- tt_response->ttvn,
- (struct tt_change *)(tt_response + 1));
+ if (tt_response->flags & BATADV_TT_FULL_TABLE) {
+ batadv_tt_fill_gtable(bat_priv, tt_response);
+ } else {
+ tt_change = (struct batadv_tt_change *)(tt_response + 1);
+ batadv_tt_update_changes(bat_priv, orig_node,
+ ntohs(tt_response->tt_data),
+ tt_response->ttvn, tt_change);
+ }
/* Delete the tt_req_node from pending tt_requests list */
spin_lock_bh(&bat_priv->tt_req_list_lock);
list_for_each_entry_safe(node, safe, &bat_priv->tt_req_list, list) {
- if (!compare_eth(node->addr, tt_response->src))
+ if (!batadv_compare_eth(node->addr, tt_response->src))
continue;
list_del(&node->list);
kfree(node);
@@ -1756,31 +1918,36 @@ void handle_tt_response(struct bat_priv *bat_priv,
spin_unlock_bh(&bat_priv->tt_req_list_lock);
/* Recalculate the CRC for this orig_node and store it */
- orig_node->tt_crc = tt_global_crc(bat_priv, orig_node);
+ orig_node->tt_crc = batadv_tt_global_crc(bat_priv, orig_node);
/* Roaming phase is over: tables are in sync again. I can
- * unset the flag */
+ * unset the flag
+ */
orig_node->tt_poss_change = false;
out:
if (orig_node)
- orig_node_free_ref(orig_node);
+ batadv_orig_node_free_ref(orig_node);
}
-int tt_init(struct bat_priv *bat_priv)
+int batadv_tt_init(struct batadv_priv *bat_priv)
{
- if (!tt_local_init(bat_priv))
- return 0;
+ int ret;
- if (!tt_global_init(bat_priv))
- return 0;
+ ret = batadv_tt_local_init(bat_priv);
+ if (ret < 0)
+ return ret;
- tt_start_timer(bat_priv);
+ ret = batadv_tt_global_init(bat_priv);
+ if (ret < 0)
+ return ret;
+
+ batadv_tt_start_timer(bat_priv);
return 1;
}
-static void tt_roam_list_free(struct bat_priv *bat_priv)
+static void batadv_tt_roam_list_free(struct batadv_priv *bat_priv)
{
- struct tt_roam_node *node, *safe;
+ struct batadv_tt_roam_node *node, *safe;
spin_lock_bh(&bat_priv->tt_roam_list_lock);
@@ -1792,13 +1959,14 @@ static void tt_roam_list_free(struct bat_priv *bat_priv)
spin_unlock_bh(&bat_priv->tt_roam_list_lock);
}
-static void tt_roam_purge(struct bat_priv *bat_priv)
+static void batadv_tt_roam_purge(struct batadv_priv *bat_priv)
{
- struct tt_roam_node *node, *safe;
+ struct batadv_tt_roam_node *node, *safe;
spin_lock_bh(&bat_priv->tt_roam_list_lock);
list_for_each_entry_safe(node, safe, &bat_priv->tt_roam_list, list) {
- if (!has_timed_out(node->first_time, ROAMING_MAX_TIME))
+ if (!batadv_has_timed_out(node->first_time,
+ BATADV_ROAMING_MAX_TIME))
continue;
list_del(&node->list);
@@ -1811,24 +1979,27 @@ static void tt_roam_purge(struct bat_priv *bat_priv)
* maximum number of possible roaming phases. In this case the ROAMING_ADV
* will not be sent.
*
- * returns true if the ROAMING_ADV can be sent, false otherwise */
-static bool tt_check_roam_count(struct bat_priv *bat_priv,
- uint8_t *client)
+ * returns true if the ROAMING_ADV can be sent, false otherwise
+ */
+static bool batadv_tt_check_roam_count(struct batadv_priv *bat_priv,
+ uint8_t *client)
{
- struct tt_roam_node *tt_roam_node;
+ struct batadv_tt_roam_node *tt_roam_node;
bool ret = false;
spin_lock_bh(&bat_priv->tt_roam_list_lock);
/* The new tt_req will be issued only if I'm not waiting for a
- * reply from the same orig_node yet */
+ * reply from the same orig_node yet
+ */
list_for_each_entry(tt_roam_node, &bat_priv->tt_roam_list, list) {
- if (!compare_eth(tt_roam_node->addr, client))
+ if (!batadv_compare_eth(tt_roam_node->addr, client))
continue;
- if (has_timed_out(tt_roam_node->first_time, ROAMING_MAX_TIME))
+ if (batadv_has_timed_out(tt_roam_node->first_time,
+ BATADV_ROAMING_MAX_TIME))
continue;
- if (!atomic_dec_not_zero(&tt_roam_node->counter))
+ if (!batadv_atomic_dec_not_zero(&tt_roam_node->counter))
/* Sorry, you roamed too many times! */
goto unlock;
ret = true;
@@ -1841,7 +2012,8 @@ static bool tt_check_roam_count(struct bat_priv *bat_priv,
goto unlock;
tt_roam_node->first_time = jiffies;
- atomic_set(&tt_roam_node->counter, ROAMING_MAX_COUNT - 1);
+ atomic_set(&tt_roam_node->counter,
+ BATADV_ROAMING_MAX_COUNT - 1);
memcpy(tt_roam_node->addr, client, ETH_ALEN);
list_add(&tt_roam_node->list, &bat_priv->tt_roam_list);
@@ -1853,97 +2025,103 @@ unlock:
return ret;
}
-static void send_roam_adv(struct bat_priv *bat_priv, uint8_t *client,
- struct orig_node *orig_node)
+static void batadv_send_roam_adv(struct batadv_priv *bat_priv, uint8_t *client,
+ struct batadv_orig_node *orig_node)
{
- struct neigh_node *neigh_node = NULL;
+ struct batadv_neigh_node *neigh_node = NULL;
struct sk_buff *skb = NULL;
- struct roam_adv_packet *roam_adv_packet;
+ struct batadv_roam_adv_packet *roam_adv_packet;
int ret = 1;
- struct hard_iface *primary_if;
+ struct batadv_hard_iface *primary_if;
+ size_t len = sizeof(*roam_adv_packet);
/* before going on we have to check whether the client has
- * already roamed to us too many times */
- if (!tt_check_roam_count(bat_priv, client))
+ * already roamed to us too many times
+ */
+ if (!batadv_tt_check_roam_count(bat_priv, client))
goto out;
- skb = dev_alloc_skb(sizeof(struct roam_adv_packet) + ETH_HLEN);
+ skb = dev_alloc_skb(sizeof(*roam_adv_packet) + ETH_HLEN);
if (!skb)
goto out;
skb_reserve(skb, ETH_HLEN);
- roam_adv_packet = (struct roam_adv_packet *)skb_put(skb,
- sizeof(struct roam_adv_packet));
+ roam_adv_packet = (struct batadv_roam_adv_packet *)skb_put(skb, len);
- roam_adv_packet->header.packet_type = BAT_ROAM_ADV;
- roam_adv_packet->header.version = COMPAT_VERSION;
- roam_adv_packet->header.ttl = TTL;
- primary_if = primary_if_get_selected(bat_priv);
+ roam_adv_packet->header.packet_type = BATADV_ROAM_ADV;
+ roam_adv_packet->header.version = BATADV_COMPAT_VERSION;
+ roam_adv_packet->header.ttl = BATADV_TTL;
+ roam_adv_packet->reserved = 0;
+ primary_if = batadv_primary_if_get_selected(bat_priv);
if (!primary_if)
goto out;
memcpy(roam_adv_packet->src, primary_if->net_dev->dev_addr, ETH_ALEN);
- hardif_free_ref(primary_if);
+ batadv_hardif_free_ref(primary_if);
memcpy(roam_adv_packet->dst, orig_node->orig, ETH_ALEN);
memcpy(roam_adv_packet->client, client, ETH_ALEN);
- neigh_node = orig_node_get_router(orig_node);
+ neigh_node = batadv_orig_node_get_router(orig_node);
if (!neigh_node)
goto out;
- bat_dbg(DBG_TT, bat_priv,
- "Sending ROAMING_ADV to %pM (client %pM) via %pM\n",
- orig_node->orig, client, neigh_node->addr);
+ batadv_dbg(BATADV_DBG_TT, bat_priv,
+ "Sending ROAMING_ADV to %pM (client %pM) via %pM\n",
+ orig_node->orig, client, neigh_node->addr);
+
+ batadv_inc_counter(bat_priv, BATADV_CNT_TT_ROAM_ADV_TX);
- send_skb_packet(skb, neigh_node->if_incoming, neigh_node->addr);
+ batadv_send_skb_packet(skb, neigh_node->if_incoming, neigh_node->addr);
ret = 0;
out:
if (neigh_node)
- neigh_node_free_ref(neigh_node);
+ batadv_neigh_node_free_ref(neigh_node);
if (ret)
kfree_skb(skb);
return;
}
-static void tt_purge(struct work_struct *work)
+static void batadv_tt_purge(struct work_struct *work)
{
- struct delayed_work *delayed_work =
- container_of(work, struct delayed_work, work);
- struct bat_priv *bat_priv =
- container_of(delayed_work, struct bat_priv, tt_work);
+ struct delayed_work *delayed_work;
+ struct batadv_priv *bat_priv;
- tt_local_purge(bat_priv);
- tt_global_roam_purge(bat_priv);
- tt_req_purge(bat_priv);
- tt_roam_purge(bat_priv);
+ delayed_work = container_of(work, struct delayed_work, work);
+ bat_priv = container_of(delayed_work, struct batadv_priv, tt_work);
- tt_start_timer(bat_priv);
+ batadv_tt_local_purge(bat_priv);
+ batadv_tt_global_roam_purge(bat_priv);
+ batadv_tt_req_purge(bat_priv);
+ batadv_tt_roam_purge(bat_priv);
+
+ batadv_tt_start_timer(bat_priv);
}
-void tt_free(struct bat_priv *bat_priv)
+void batadv_tt_free(struct batadv_priv *bat_priv)
{
cancel_delayed_work_sync(&bat_priv->tt_work);
- tt_local_table_free(bat_priv);
- tt_global_table_free(bat_priv);
- tt_req_list_free(bat_priv);
- tt_changes_list_free(bat_priv);
- tt_roam_list_free(bat_priv);
+ batadv_tt_local_table_free(bat_priv);
+ batadv_tt_global_table_free(bat_priv);
+ batadv_tt_req_list_free(bat_priv);
+ batadv_tt_changes_list_free(bat_priv);
+ batadv_tt_roam_list_free(bat_priv);
kfree(bat_priv->tt_buff);
}
/* This function will enable or disable the specified flags for all the entries
- * in the given hash table and returns the number of modified entries */
-static uint16_t tt_set_flags(struct hashtable_t *hash, uint16_t flags,
- bool enable)
+ * in the given hash table and returns the number of modified entries
+ */
+static uint16_t batadv_tt_set_flags(struct batadv_hashtable *hash,
+ uint16_t flags, bool enable)
{
uint32_t i;
uint16_t changed_num = 0;
struct hlist_head *head;
struct hlist_node *node;
- struct tt_common_entry *tt_common_entry;
+ struct batadv_tt_common_entry *tt_common_entry;
if (!hash)
goto out;
@@ -1971,12 +2149,12 @@ out:
return changed_num;
}
-/* Purge out all the tt local entries marked with TT_CLIENT_PENDING */
-static void tt_local_purge_pending_clients(struct bat_priv *bat_priv)
+/* Purge out all the tt local entries marked with BATADV_TT_CLIENT_PENDING */
+static void batadv_tt_local_purge_pending_clients(struct batadv_priv *bat_priv)
{
- struct hashtable_t *hash = bat_priv->tt_local_hash;
- struct tt_common_entry *tt_common_entry;
- struct tt_local_entry *tt_local_entry;
+ struct batadv_hashtable *hash = bat_priv->tt_local_hash;
+ struct batadv_tt_common_entry *tt_common;
+ struct batadv_tt_local_entry *tt_local;
struct hlist_node *node, *node_tmp;
struct hlist_head *head;
spinlock_t *list_lock; /* protects write access to the hash lists */
@@ -1990,103 +2168,149 @@ static void tt_local_purge_pending_clients(struct bat_priv *bat_priv)
list_lock = &hash->list_locks[i];
spin_lock_bh(list_lock);
- hlist_for_each_entry_safe(tt_common_entry, node, node_tmp,
- head, hash_entry) {
- if (!(tt_common_entry->flags & TT_CLIENT_PENDING))
+ hlist_for_each_entry_safe(tt_common, node, node_tmp, head,
+ hash_entry) {
+ if (!(tt_common->flags & BATADV_TT_CLIENT_PENDING))
continue;
- bat_dbg(DBG_TT, bat_priv,
- "Deleting local tt entry (%pM): pending\n",
- tt_common_entry->addr);
+ batadv_dbg(BATADV_DBG_TT, bat_priv,
+ "Deleting local tt entry (%pM): pending\n",
+ tt_common->addr);
atomic_dec(&bat_priv->num_local_tt);
hlist_del_rcu(node);
- tt_local_entry = container_of(tt_common_entry,
- struct tt_local_entry,
- common);
- tt_local_entry_free_ref(tt_local_entry);
+ tt_local = container_of(tt_common,
+ struct batadv_tt_local_entry,
+ common);
+ batadv_tt_local_entry_free_ref(tt_local);
}
spin_unlock_bh(list_lock);
}
}
-void tt_commit_changes(struct bat_priv *bat_priv)
+static int batadv_tt_commit_changes(struct batadv_priv *bat_priv,
+ unsigned char **packet_buff,
+ int *packet_buff_len, int packet_min_len)
{
- uint16_t changed_num = tt_set_flags(bat_priv->tt_local_hash,
- TT_CLIENT_NEW, false);
- /* all the reset entries have now to be effectively counted as local
- * entries */
+ uint16_t changed_num = 0;
+
+ if (atomic_read(&bat_priv->tt_local_changes) < 1)
+ return -ENOENT;
+
+ changed_num = batadv_tt_set_flags(bat_priv->tt_local_hash,
+ BATADV_TT_CLIENT_NEW, false);
+
+ /* all reset entries have to be counted as local entries */
atomic_add(changed_num, &bat_priv->num_local_tt);
- tt_local_purge_pending_clients(bat_priv);
+ batadv_tt_local_purge_pending_clients(bat_priv);
+ bat_priv->tt_crc = batadv_tt_local_crc(bat_priv);
/* Increment the TTVN only once per OGM interval */
atomic_inc(&bat_priv->ttvn);
- bat_dbg(DBG_TT, bat_priv, "Local changes committed, updating to ttvn %u\n",
- (uint8_t)atomic_read(&bat_priv->ttvn));
+ batadv_dbg(BATADV_DBG_TT, bat_priv,
+ "Local changes committed, updating to ttvn %u\n",
+ (uint8_t)atomic_read(&bat_priv->ttvn));
bat_priv->tt_poss_change = false;
+
+ /* reset the sending counter */
+ atomic_set(&bat_priv->tt_ogm_append_cnt, BATADV_TT_OGM_APPEND_MAX);
+
+ return batadv_tt_changes_fill_buff(bat_priv, packet_buff,
+ packet_buff_len, packet_min_len);
+}
+
+/* when calling this function (hard_iface == primary_if) has to be true */
+int batadv_tt_append_diff(struct batadv_priv *bat_priv,
+ unsigned char **packet_buff, int *packet_buff_len,
+ int packet_min_len)
+{
+ int tt_num_changes;
+
+ /* if at least one change happened */
+ tt_num_changes = batadv_tt_commit_changes(bat_priv, packet_buff,
+ packet_buff_len,
+ packet_min_len);
+
+ /* if the changes have been sent often enough */
+ if ((tt_num_changes < 0) &&
+ (!batadv_atomic_dec_not_zero(&bat_priv->tt_ogm_append_cnt))) {
+ batadv_tt_realloc_packet_buff(packet_buff, packet_buff_len,
+ packet_min_len, packet_min_len);
+ tt_num_changes = 0;
+ }
+
+ return tt_num_changes;
}
-bool is_ap_isolated(struct bat_priv *bat_priv, uint8_t *src, uint8_t *dst)
+bool batadv_is_ap_isolated(struct batadv_priv *bat_priv, uint8_t *src,
+ uint8_t *dst)
{
- struct tt_local_entry *tt_local_entry = NULL;
- struct tt_global_entry *tt_global_entry = NULL;
+ struct batadv_tt_local_entry *tt_local_entry = NULL;
+ struct batadv_tt_global_entry *tt_global_entry = NULL;
bool ret = false;
if (!atomic_read(&bat_priv->ap_isolation))
goto out;
- tt_local_entry = tt_local_hash_find(bat_priv, dst);
+ tt_local_entry = batadv_tt_local_hash_find(bat_priv, dst);
if (!tt_local_entry)
goto out;
- tt_global_entry = tt_global_hash_find(bat_priv, src);
+ tt_global_entry = batadv_tt_global_hash_find(bat_priv, src);
if (!tt_global_entry)
goto out;
- if (!_is_ap_isolated(tt_local_entry, tt_global_entry))
+ if (!_batadv_is_ap_isolated(tt_local_entry, tt_global_entry))
goto out;
ret = true;
out:
if (tt_global_entry)
- tt_global_entry_free_ref(tt_global_entry);
+ batadv_tt_global_entry_free_ref(tt_global_entry);
if (tt_local_entry)
- tt_local_entry_free_ref(tt_local_entry);
+ batadv_tt_local_entry_free_ref(tt_local_entry);
return ret;
}
-void tt_update_orig(struct bat_priv *bat_priv, struct orig_node *orig_node,
- const unsigned char *tt_buff, uint8_t tt_num_changes,
- uint8_t ttvn, uint16_t tt_crc)
+void batadv_tt_update_orig(struct batadv_priv *bat_priv,
+ struct batadv_orig_node *orig_node,
+ const unsigned char *tt_buff, uint8_t tt_num_changes,
+ uint8_t ttvn, uint16_t tt_crc)
{
uint8_t orig_ttvn = (uint8_t)atomic_read(&orig_node->last_ttvn);
bool full_table = true;
+ struct batadv_tt_change *tt_change;
/* don't care about a backbone gateways updates. */
- if (bla_is_backbone_gw_orig(bat_priv, orig_node->orig))
+ if (batadv_bla_is_backbone_gw_orig(bat_priv, orig_node->orig))
return;
/* orig table not initialised AND first diff is in the OGM OR the ttvn
- * increased by one -> we can apply the attached changes */
+ * increased by one -> we can apply the attached changes
+ */
if ((!orig_node->tt_initialised && ttvn == 1) ||
ttvn - orig_ttvn == 1) {
/* the OGM could not contain the changes due to their size or
- * because they have already been sent TT_OGM_APPEND_MAX times.
- * In this case send a tt request */
+ * because they have already been sent BATADV_TT_OGM_APPEND_MAX
+ * times.
+ * In this case send a tt request
+ */
if (!tt_num_changes) {
full_table = false;
goto request_table;
}
- tt_update_changes(bat_priv, orig_node, tt_num_changes, ttvn,
- (struct tt_change *)tt_buff);
+ tt_change = (struct batadv_tt_change *)tt_buff;
+ batadv_tt_update_changes(bat_priv, orig_node, tt_num_changes,
+ ttvn, tt_change);
/* Even if we received the precomputed crc with the OGM, we
* prefer to recompute it to spot any possible inconsistency
- * in the global table */
- orig_node->tt_crc = tt_global_crc(bat_priv, orig_node);
+ * in the global table
+ */
+ orig_node->tt_crc = batadv_tt_global_crc(bat_priv, orig_node);
/* The ttvn alone is not enough to guarantee consistency
* because a single value could represent different states
@@ -2095,26 +2319,28 @@ void tt_update_orig(struct bat_priv *bat_priv, struct orig_node *orig_node,
* consistent or not. E.g. a node could disconnect while its
* ttvn is X and reconnect on ttvn = X + TTVN_MAX: in this case
* checking the CRC value is mandatory to detect the
- * inconsistency */
+ * inconsistency
+ */
if (orig_node->tt_crc != tt_crc)
goto request_table;
/* Roaming phase is over: tables are in sync again. I can
- * unset the flag */
+ * unset the flag
+ */
orig_node->tt_poss_change = false;
} else {
/* if we missed more than one change or our tables are not
- * in sync anymore -> request fresh tt data */
-
+ * in sync anymore -> request fresh tt data
+ */
if (!orig_node->tt_initialised || ttvn != orig_ttvn ||
orig_node->tt_crc != tt_crc) {
request_table:
- bat_dbg(DBG_TT, bat_priv,
- "TT inconsistency for %pM. Need to retrieve the correct information (ttvn: %u last_ttvn: %u crc: %u last_crc: %u num_changes: %u)\n",
- orig_node->orig, ttvn, orig_ttvn, tt_crc,
- orig_node->tt_crc, tt_num_changes);
- send_tt_request(bat_priv, orig_node, ttvn, tt_crc,
- full_table);
+ batadv_dbg(BATADV_DBG_TT, bat_priv,
+ "TT inconsistency for %pM. Need to retrieve the correct information (ttvn: %u last_ttvn: %u crc: %u last_crc: %u num_changes: %u)\n",
+ orig_node->orig, ttvn, orig_ttvn, tt_crc,
+ orig_node->tt_crc, tt_num_changes);
+ batadv_send_tt_request(bat_priv, orig_node, ttvn,
+ tt_crc, full_table);
return;
}
}
@@ -2124,17 +2350,18 @@ request_table:
* originator to another one. This entry is kept is still kept for consistency
* purposes
*/
-bool tt_global_client_is_roaming(struct bat_priv *bat_priv, uint8_t *addr)
+bool batadv_tt_global_client_is_roaming(struct batadv_priv *bat_priv,
+ uint8_t *addr)
{
- struct tt_global_entry *tt_global_entry;
+ struct batadv_tt_global_entry *tt_global_entry;
bool ret = false;
- tt_global_entry = tt_global_hash_find(bat_priv, addr);
+ tt_global_entry = batadv_tt_global_hash_find(bat_priv, addr);
if (!tt_global_entry)
goto out;
- ret = tt_global_entry->common.flags & TT_CLIENT_ROAM;
- tt_global_entry_free_ref(tt_global_entry);
+ ret = tt_global_entry->common.flags & BATADV_TT_CLIENT_ROAM;
+ batadv_tt_global_entry_free_ref(tt_global_entry);
out:
return ret;
}