summaryrefslogtreecommitdiffstats
path: root/net/batman-adv/translation-table.c
diff options
context:
space:
mode:
Diffstat (limited to 'net/batman-adv/translation-table.c')
-rw-r--r--net/batman-adv/translation-table.c78
1 files changed, 49 insertions, 29 deletions
diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index 66e11b58312e..5180d50e909d 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"
@@ -232,7 +230,8 @@ void batadv_tt_local_add(struct net_device *soft_iface, const uint8_t *addr,
/* 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) */
+ * (consistency check)
+ */
tt_local_entry->common.flags |= TT_CLIENT_NEW;
hash_added = hash_add(bat_priv->tt_local_hash, compare_tt, choose_orig,
@@ -437,7 +436,8 @@ static void tt_local_set_pending(struct bat_priv *bat_priv,
/* 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) */
+ * response issued before the net ttvn increment (consistency check)
+ */
tt_local_entry->common.flags |= TT_CLIENT_PENDING;
bat_dbg(DBG_TT, bat_priv,
@@ -898,8 +898,8 @@ static void tt_global_del(struct bat_priv *bat_priv,
* 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. */
-
+ * 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) {
@@ -1072,7 +1072,8 @@ struct orig_node *batadv_transtable_search(struct bat_priv *bat_priv,
goto out;
/* check whether the clients should not communicate due to AP
- * isolation */
+ * isolation
+ */
if (tt_local_entry && _is_ap_isolated(tt_local_entry, tt_global_entry))
goto out;
@@ -1171,7 +1172,8 @@ static uint16_t batadv_tt_local_crc(struct bat_priv *bat_priv)
hlist_for_each_entry_rcu(tt_common_entry, node,
head, hash_entry) {
/* not yet committed clients have not to be taken into
- * account while computing the CRC */
+ * account while computing the CRC
+ */
if (tt_common_entry->flags & TT_CLIENT_NEW)
continue;
total_one = 0;
@@ -1208,7 +1210,8 @@ static void tt_save_orig_buffer(struct bat_priv *bat_priv,
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);
@@ -1237,7 +1240,8 @@ 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 */
+ * 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)
{
@@ -1347,7 +1351,8 @@ 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:
@@ -1370,7 +1375,8 @@ static int send_tt_request(struct bat_priv *bat_priv,
goto out;
/* 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
+ */
tt_req_node = new_tt_req_node(bat_priv, dst_orig_node);
if (!tt_req_node)
goto out;
@@ -1478,7 +1484,8 @@ static bool send_other_tt_response(struct bat_priv *bat_priv,
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;
@@ -1590,7 +1597,8 @@ static bool send_my_tt_response(struct bat_priv *bat_priv,
goto out;
/* If the full table has been explicitly requested or the gap
- * is too big send the whole local translation table */
+ * is too big send the whole local translation table
+ */
if (tt_request->flags & TT_FULL_TABLE || my_ttvn != req_ttvn ||
!bat_priv->tt_buff)
full_table = true;
@@ -1598,7 +1606,8 @@ static bool send_my_tt_response(struct bat_priv *bat_priv,
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;
@@ -1766,7 +1775,8 @@ bool batadv_is_my_client(struct bat_priv *bat_priv, const uint8_t *addr)
if (!tt_local_entry)
goto out;
/* Check if the client has been logically deleted (but is kept for
- * consistency purpose) */
+ * consistency purpose)
+ */
if (tt_local_entry->common.flags & TT_CLIENT_PENDING)
goto out;
ret = true;
@@ -1817,7 +1827,8 @@ void batadv_handle_tt_response(struct bat_priv *bat_priv,
/* Recalculate the CRC for this orig_node and store it */
orig_node->tt_crc = 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)
@@ -1874,7 +1885,8 @@ 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 */
+ * 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)
{
@@ -1883,7 +1895,8 @@ static bool tt_check_roam_count(struct bat_priv *bat_priv,
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))
continue;
@@ -1926,7 +1939,8 @@ static void send_roam_adv(struct bat_priv *bat_priv, uint8_t *client,
struct hard_iface *primary_if;
/* before going on we have to check whether the client has
- * already roamed to us too many times */
+ * already roamed to us too many times
+ */
if (!tt_check_roam_count(bat_priv, client))
goto out;
@@ -2000,7 +2014,8 @@ void batadv_tt_free(struct bat_priv *bat_priv)
}
/* 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 */
+ * 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)
{
@@ -2172,12 +2187,14 @@ void batadv_tt_update_orig(struct bat_priv *bat_priv,
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 */
+ * In this case send a tt request
+ */
if (!tt_num_changes) {
full_table = false;
goto request_table;
@@ -2188,7 +2205,8 @@ void batadv_tt_update_orig(struct bat_priv *bat_priv,
/* Even if we received the precomputed crc with the OGM, we
* prefer to recompute it to spot any possible inconsistency
- * in the global table */
+ * in the global table
+ */
orig_node->tt_crc = tt_global_crc(bat_priv, orig_node);
/* The ttvn alone is not enough to guarantee consistency
@@ -2198,17 +2216,19 @@ void batadv_tt_update_orig(struct bat_priv *bat_priv,
* 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: