#define MAX_VIS_PACKET_SIZE 1000
-static void start_vis_timer(struct bat_priv *bat_priv);
+static void batadv_start_vis_timer(struct bat_priv *bat_priv);
/* free the info */
-static void free_info(struct kref *ref)
+static void batadv_free_info(struct kref *ref)
{
struct vis_info *info = container_of(ref, struct vis_info, refcount);
struct bat_priv *bat_priv = info->bat_priv;
}
/* Compare two vis packets, used by the hashing algorithm */
-static int vis_info_cmp(const struct hlist_node *node, const void *data2)
+static int batadv_vis_info_cmp(const struct hlist_node *node, const void *data2)
{
const struct vis_info *d1, *d2;
const struct vis_packet *p1, *p2;
/* hash function to choose an entry in a hash table of given size
* hash algorithm from http://en.wikipedia.org/wiki/Hash_table
*/
-static uint32_t vis_info_choose(const void *data, uint32_t size)
+static uint32_t batadv_vis_info_choose(const void *data, uint32_t size)
{
const struct vis_info *vis_info = data;
const struct vis_packet *packet;
return hash % size;
}
-static struct vis_info *vis_hash_find(struct bat_priv *bat_priv,
- const void *data)
+static struct vis_info *batadv_vis_hash_find(struct bat_priv *bat_priv,
+ const void *data)
{
struct hashtable_t *hash = bat_priv->vis_hash;
struct hlist_head *head;
if (!hash)
return NULL;
- index = vis_info_choose(data, hash->size);
+ index = batadv_vis_info_choose(data, hash->size);
head = &hash->table[index];
rcu_read_lock();
hlist_for_each_entry_rcu(vis_info, node, head, hash_entry) {
- if (!vis_info_cmp(node, data))
+ if (!batadv_vis_info_cmp(node, data))
continue;
vis_info_tmp = vis_info;
/* insert interface to the list of interfaces of one originator, if it
* does not already exist in the list
*/
-static void vis_data_insert_interface(const uint8_t *interface,
- struct hlist_head *if_list,
- bool primary)
+static void batadv_vis_data_insert_interface(const uint8_t *interface,
+ struct hlist_head *if_list,
+ bool primary)
{
struct if_list_entry *entry;
struct hlist_node *pos;
hlist_add_head(&entry->list, if_list);
}
-static ssize_t vis_data_read_prim_sec(char *buff,
- const struct hlist_head *if_list)
+static ssize_t batadv_vis_prim_sec(char *buff, const struct hlist_head *if_list)
{
struct if_list_entry *entry;
struct hlist_node *pos;
return len;
}
-static size_t vis_data_count_prim_sec(struct hlist_head *if_list)
+static size_t batadv_vis_cnt_prim_sec(struct hlist_head *if_list)
{
struct if_list_entry *entry;
struct hlist_node *pos;
}
/* read an entry */
-static ssize_t vis_data_read_entry(char *buff,
- const struct vis_info_entry *entry,
- const uint8_t *src, bool primary)
+static ssize_t batadv_vis_data_read_entry(char *buff,
+ const struct vis_info_entry *entry,
+ const uint8_t *src, bool primary)
{
/* maximal length: max(4+17+2, 3+17+1+3+2) == 26 */
if (primary && entry->quality == 0)
entries = (struct vis_info_entry *)
((char *)packet + sizeof(*packet));
- vis_data_insert_interface(packet->vis_orig,
- &vis_if_list, true);
+ batadv_vis_data_insert_interface(packet->vis_orig,
+ &vis_if_list, true);
for (j = 0; j < packet->entries; j++) {
if (entries[j].quality == 0)
if (batadv_compare_eth(entries[j].src,
packet->vis_orig))
continue;
- vis_data_insert_interface(entries[j].src,
- &vis_if_list,
- false);
+ batadv_vis_data_insert_interface(entries[j].src,
+ &vis_if_list,
+ false);
}
hlist_for_each_entry(entry, pos, &vis_if_list, list) {
if (batadv_compare_eth(entry->addr,
packet->vis_orig))
buf_size +=
- vis_data_count_prim_sec(&vis_if_list);
+ batadv_vis_cnt_prim_sec(&vis_if_list);
buf_size += 1;
}
entries = (struct vis_info_entry *)
((char *)packet + sizeof(*packet));
- vis_data_insert_interface(packet->vis_orig,
- &vis_if_list, true);
+ batadv_vis_data_insert_interface(packet->vis_orig,
+ &vis_if_list, true);
for (j = 0; j < packet->entries; j++) {
if (entries[j].quality == 0)
if (batadv_compare_eth(entries[j].src,
packet->vis_orig))
continue;
- vis_data_insert_interface(entries[j].src,
- &vis_if_list,
- false);
+ batadv_vis_data_insert_interface(entries[j].src,
+ &vis_if_list,
+ false);
}
hlist_for_each_entry(entry, pos, &vis_if_list, list) {
entry->addr);
for (j = 0; j < packet->entries; j++)
- buff_pos += vis_data_read_entry(
+ buff_pos += batadv_vis_data_read_entry(
buff + buff_pos,
&entries[j],
entry->addr,
if (batadv_compare_eth(entry->addr,
packet->vis_orig))
buff_pos +=
- vis_data_read_prim_sec(buff + buff_pos,
- &vis_if_list);
+ batadv_vis_prim_sec(buff + buff_pos,
+ &vis_if_list);
buff_pos += sprintf(buff + buff_pos, "\n");
}
/* add the info packet to the send list, if it was not
* already linked in.
*/
-static void send_list_add(struct bat_priv *bat_priv, struct vis_info *info)
+static void batadv_send_list_add(struct bat_priv *bat_priv,
+ struct vis_info *info)
{
if (list_empty(&info->send_list)) {
kref_get(&info->refcount);
/* delete the info packet from the send list, if it was
* linked in.
*/
-static void send_list_del(struct vis_info *info)
+static void batadv_send_list_del(struct vis_info *info)
{
if (!list_empty(&info->send_list)) {
list_del_init(&info->send_list);
- kref_put(&info->refcount, free_info);
+ kref_put(&info->refcount, batadv_free_info);
}
}
/* tries to add one entry to the receive list. */
-static void recv_list_add(struct bat_priv *bat_priv,
- struct list_head *recv_list, const char *mac)
+static void batadv_recv_list_add(struct bat_priv *bat_priv,
+ struct list_head *recv_list, const char *mac)
{
struct recvlist_node *entry;
}
/* returns 1 if this mac is in the recv_list */
-static int recv_list_is_in(struct bat_priv *bat_priv,
- const struct list_head *recv_list, const char *mac)
+static int batadv_recv_list_is_in(struct bat_priv *bat_priv,
+ const struct list_head *recv_list,
+ const char *mac)
{
const struct recvlist_node *entry;
* broken.. ). vis hash must be locked outside. is_new is set when the packet
* is newer than old entries in the hash.
*/
-static struct vis_info *add_packet(struct bat_priv *bat_priv,
- struct vis_packet *vis_packet,
- int vis_info_len, int *is_new,
- int make_broadcast)
+static struct vis_info *batadv_add_packet(struct bat_priv *bat_priv,
+ struct vis_packet *vis_packet,
+ int vis_info_len, int *is_new,
+ int make_broadcast)
{
struct vis_info *info, *old_info;
struct vis_packet *search_packet, *old_packet;
sizeof(*search_packet));
memcpy(search_packet->vis_orig, vis_packet->vis_orig, ETH_ALEN);
- old_info = vis_hash_find(bat_priv, &search_elem);
+ old_info = batadv_vis_hash_find(bat_priv, &search_elem);
kfree_skb(search_elem.skb_packet);
if (old_info) {
if (!seq_after(ntohl(vis_packet->seqno),
ntohl(old_packet->seqno))) {
if (old_packet->seqno == vis_packet->seqno) {
- recv_list_add(bat_priv, &old_info->recv_list,
- vis_packet->sender_orig);
+ batadv_recv_list_add(bat_priv,
+ &old_info->recv_list,
+ vis_packet->sender_orig);
return old_info;
} else {
/* newer packet is already in hash. */
}
}
/* remove old entry */
- batadv_hash_remove(bat_priv->vis_hash, vis_info_cmp,
- vis_info_choose, old_info);
- send_list_del(old_info);
- kref_put(&old_info->refcount, free_info);
+ batadv_hash_remove(bat_priv->vis_hash, batadv_vis_info_cmp,
+ batadv_vis_info_choose, old_info);
+ batadv_send_list_del(old_info);
+ kref_put(&old_info->refcount, batadv_free_info);
}
info = kmalloc(sizeof(*info), GFP_ATOMIC);
if (packet->entries * sizeof(struct vis_info_entry) > vis_info_len)
packet->entries = vis_info_len / sizeof(struct vis_info_entry);
- recv_list_add(bat_priv, &info->recv_list, packet->sender_orig);
+ batadv_recv_list_add(bat_priv, &info->recv_list, packet->sender_orig);
/* try to add it */
- hash_added = batadv_hash_add(bat_priv->vis_hash, vis_info_cmp,
- vis_info_choose, info, &info->hash_entry);
+ hash_added = batadv_hash_add(bat_priv->vis_hash, batadv_vis_info_cmp,
+ batadv_vis_info_choose, info,
+ &info->hash_entry);
if (hash_added != 0) {
/* did not work (for some reason) */
- kref_put(&info->refcount, free_info);
+ kref_put(&info->refcount, batadv_free_info);
info = NULL;
}
make_broadcast = (vis_server == VIS_TYPE_SERVER_SYNC);
spin_lock_bh(&bat_priv->vis_hash_lock);
- info = add_packet(bat_priv, vis_packet, vis_info_len,
- &is_new, make_broadcast);
+ info = batadv_add_packet(bat_priv, vis_packet, vis_info_len,
+ &is_new, make_broadcast);
if (!info)
goto end;
* hash.
*/
if (vis_server == VIS_TYPE_SERVER_SYNC && is_new)
- send_list_add(bat_priv, info);
+ batadv_send_list_add(bat_priv, info);
end:
spin_unlock_bh(&bat_priv->vis_hash_lock);
}
are_target = 1;
spin_lock_bh(&bat_priv->vis_hash_lock);
- info = add_packet(bat_priv, vis_packet, vis_info_len,
- &is_new, are_target);
+ info = batadv_add_packet(bat_priv, vis_packet, vis_info_len,
+ &is_new, are_target);
if (!info)
goto end;
/* send only if we're the target server or ... */
if (are_target && is_new) {
packet->vis_type = VIS_TYPE_SERVER_SYNC; /* upgrade! */
- send_list_add(bat_priv, info);
+ batadv_send_list_add(bat_priv, info);
/* ... we're not the recipient (and thus need to forward). */
} else if (!batadv_is_my_mac(packet->target_orig)) {
- send_list_add(bat_priv, info);
+ batadv_send_list_add(bat_priv, info);
}
end:
*
* Must be called with the originator hash locked
*/
-static int find_best_vis_server(struct bat_priv *bat_priv,
- struct vis_info *info)
+static int batadv_find_best_vis_server(struct bat_priv *bat_priv,
+ struct vis_info *info)
{
struct hashtable_t *hash = bat_priv->orig_hash;
struct neigh_node *router;
}
/* Return true if the vis packet is full. */
-static bool vis_packet_full(const struct vis_info *info)
+static bool batadv_vis_packet_full(const struct vis_info *info)
{
const struct vis_packet *packet;
packet = (struct vis_packet *)info->skb_packet->data;
/* generates a packet of own vis data,
* returns 0 on success, -1 if no packet could be generated
*/
-static int generate_vis_packet(struct bat_priv *bat_priv)
+static int batadv_generate_vis_packet(struct bat_priv *bat_priv)
{
struct hashtable_t *hash = bat_priv->orig_hash;
struct hlist_node *node;
skb_trim(info->skb_packet, sizeof(*packet));
if (packet->vis_type == VIS_TYPE_CLIENT_UPDATE) {
- best_tq = find_best_vis_server(bat_priv, info);
+ best_tq = batadv_find_best_vis_server(bat_priv, info);
if (best_tq < 0)
return best_tq;
next:
batadv_neigh_node_free_ref(router);
- if (vis_packet_full(info))
+ if (batadv_vis_packet_full(info))
goto unlock;
}
rcu_read_unlock();
entry->quality = 0; /* 0 means TT */
packet->entries++;
- if (vis_packet_full(info))
+ if (batadv_vis_packet_full(info))
goto unlock;
}
rcu_read_unlock();
/* free old vis packets. Must be called with this vis_hash_lock
* held
*/
-static void purge_vis_packets(struct bat_priv *bat_priv)
+static void batadv_purge_vis_packets(struct bat_priv *bat_priv)
{
uint32_t i;
struct hashtable_t *hash = bat_priv->vis_hash;
if (batadv_has_timed_out(info->first_seen,
VIS_TIMEOUT)) {
hlist_del(node);
- send_list_del(info);
- kref_put(&info->refcount, free_info);
+ batadv_send_list_del(info);
+ kref_put(&info->refcount, batadv_free_info);
}
}
}
}
-static void broadcast_vis_packet(struct bat_priv *bat_priv,
- struct vis_info *info)
+static void batadv_broadcast_vis_packet(struct bat_priv *bat_priv,
+ struct vis_info *info)
{
struct neigh_node *router;
struct hashtable_t *hash = bat_priv->orig_hash;
/* don't send it if we already received the packet from
* this node.
*/
- if (recv_list_is_in(bat_priv, &info->recv_list,
- orig_node->orig)) {
+ if (batadv_recv_list_is_in(bat_priv, &info->recv_list,
+ orig_node->orig)) {
batadv_neigh_node_free_ref(router);
continue;
}
}
}
-static void unicast_vis_packet(struct bat_priv *bat_priv,
- struct vis_info *info)
+static void batadv_unicast_vis_packet(struct bat_priv *bat_priv,
+ struct vis_info *info)
{
struct orig_node *orig_node;
struct neigh_node *router = NULL;
batadv_orig_node_free_ref(orig_node);
}
-/* only send one vis packet. called from send_vis_packets() */
-static void send_vis_packet(struct bat_priv *bat_priv, struct vis_info *info)
+/* only send one vis packet. called from batadv_send_vis_packets() */
+static void batadv_send_vis_packet(struct bat_priv *bat_priv,
+ struct vis_info *info)
{
struct hard_iface *primary_if;
struct vis_packet *packet;
packet->header.ttl--;
if (is_broadcast_ether_addr(packet->target_orig))
- broadcast_vis_packet(bat_priv, info);
+ batadv_broadcast_vis_packet(bat_priv, info);
else
- unicast_vis_packet(bat_priv, info);
+ batadv_unicast_vis_packet(bat_priv, info);
packet->header.ttl++; /* restore TTL */
out:
}
/* called from timer; send (and maybe generate) vis packet. */
-static void send_vis_packets(struct work_struct *work)
+static void batadv_send_vis_packets(struct work_struct *work)
{
struct delayed_work *delayed_work =
container_of(work, struct delayed_work, work);
struct vis_info *info;
spin_lock_bh(&bat_priv->vis_hash_lock);
- purge_vis_packets(bat_priv);
+ batadv_purge_vis_packets(bat_priv);
- if (generate_vis_packet(bat_priv) == 0) {
+ if (batadv_generate_vis_packet(bat_priv) == 0) {
/* schedule if generation was successful */
- send_list_add(bat_priv, bat_priv->my_vis_info);
+ batadv_send_list_add(bat_priv, bat_priv->my_vis_info);
}
while (!list_empty(&bat_priv->vis_send_list)) {
kref_get(&info->refcount);
spin_unlock_bh(&bat_priv->vis_hash_lock);
- send_vis_packet(bat_priv, info);
+ batadv_send_vis_packet(bat_priv, info);
spin_lock_bh(&bat_priv->vis_hash_lock);
- send_list_del(info);
- kref_put(&info->refcount, free_info);
+ batadv_send_list_del(info);
+ kref_put(&info->refcount, batadv_free_info);
}
spin_unlock_bh(&bat_priv->vis_hash_lock);
- start_vis_timer(bat_priv);
+ batadv_start_vis_timer(bat_priv);
}
/* init the vis server. this may only be called when if_list is already
INIT_LIST_HEAD(&bat_priv->vis_send_list);
- hash_added = batadv_hash_add(bat_priv->vis_hash, vis_info_cmp,
- vis_info_choose, bat_priv->my_vis_info,
+ hash_added = batadv_hash_add(bat_priv->vis_hash, batadv_vis_info_cmp,
+ batadv_vis_info_choose,
+ bat_priv->my_vis_info,
&bat_priv->my_vis_info->hash_entry);
if (hash_added != 0) {
pr_err("Can't add own vis packet into hash\n");
/* not in hash, need to remove it manually. */
- kref_put(&bat_priv->my_vis_info->refcount, free_info);
+ kref_put(&bat_priv->my_vis_info->refcount, batadv_free_info);
goto err;
}
spin_unlock_bh(&bat_priv->vis_hash_lock);
- start_vis_timer(bat_priv);
+ batadv_start_vis_timer(bat_priv);
return 0;
free_info:
}
/* Decrease the reference count on a hash item info */
-static void free_info_ref(struct hlist_node *node, void *arg)
+static void batadv_free_info_ref(struct hlist_node *node, void *arg)
{
struct vis_info *info;
info = container_of(node, struct vis_info, hash_entry);
- send_list_del(info);
- kref_put(&info->refcount, free_info);
+ batadv_send_list_del(info);
+ kref_put(&info->refcount, batadv_free_info);
}
/* shutdown vis-server */
spin_lock_bh(&bat_priv->vis_hash_lock);
/* properly remove, kill timers ... */
- batadv_hash_delete(bat_priv->vis_hash, free_info_ref, NULL);
+ batadv_hash_delete(bat_priv->vis_hash, batadv_free_info_ref, NULL);
bat_priv->vis_hash = NULL;
bat_priv->my_vis_info = NULL;
spin_unlock_bh(&bat_priv->vis_hash_lock);
}
/* schedule packets for (re)transmission */
-static void start_vis_timer(struct bat_priv *bat_priv)
+static void batadv_start_vis_timer(struct bat_priv *bat_priv)
{
- INIT_DELAYED_WORK(&bat_priv->vis_work, send_vis_packets);
+ INIT_DELAYED_WORK(&bat_priv->vis_work, batadv_send_vis_packets);
queue_delayed_work(batadv_event_workqueue, &bat_priv->vis_work,
msecs_to_jiffies(VIS_INTERVAL));
}
projects / mirror_ubuntu-kernels.git / commitdiff