#include "send.h"
#include "bat_algo.h"
-static struct neigh_node *bat_iv_ogm_neigh_new(struct hard_iface *hard_iface,
- const uint8_t *neigh_addr,
- struct orig_node *orig_node,
- struct orig_node *orig_neigh,
- __be32 seqno)
+static struct batadv_neigh_node *
+batadv_iv_ogm_neigh_new(struct batadv_hard_iface *hard_iface,
+ const uint8_t *neigh_addr,
+ struct batadv_orig_node *orig_node,
+ struct batadv_orig_node *orig_neigh, __be32 seqno)
{
- struct neigh_node *neigh_node;
+ struct batadv_neigh_node *neigh_node;
neigh_node = batadv_neigh_node_new(hard_iface, neigh_addr,
ntohl(seqno));
return neigh_node;
}
-static int bat_iv_ogm_iface_enable(struct hard_iface *hard_iface)
+static int batadv_iv_ogm_iface_enable(struct batadv_hard_iface *hard_iface)
{
- struct batman_ogm_packet *batman_ogm_packet;
+ struct batadv_ogm_packet *batadv_ogm_packet;
uint32_t random_seqno;
int res = -ENOMEM;
get_random_bytes(&random_seqno, sizeof(random_seqno));
atomic_set(&hard_iface->seqno, random_seqno);
- hard_iface->packet_len = BATMAN_OGM_HLEN;
+ hard_iface->packet_len = BATADV_OGM_HLEN;
hard_iface->packet_buff = kmalloc(hard_iface->packet_len, GFP_ATOMIC);
if (!hard_iface->packet_buff)
goto out;
- batman_ogm_packet = (struct batman_ogm_packet *)hard_iface->packet_buff;
- batman_ogm_packet->header.packet_type = BAT_IV_OGM;
- batman_ogm_packet->header.version = COMPAT_VERSION;
- batman_ogm_packet->header.ttl = 2;
- batman_ogm_packet->flags = NO_FLAGS;
- batman_ogm_packet->tq = TQ_MAX_VALUE;
- batman_ogm_packet->tt_num_changes = 0;
- batman_ogm_packet->ttvn = 0;
+ batadv_ogm_packet = (struct batadv_ogm_packet *)hard_iface->packet_buff;
+ batadv_ogm_packet->header.packet_type = BATADV_IV_OGM;
+ batadv_ogm_packet->header.version = BATADV_COMPAT_VERSION;
+ batadv_ogm_packet->header.ttl = 2;
+ batadv_ogm_packet->flags = BATADV_NO_FLAGS;
+ batadv_ogm_packet->tq = BATADV_TQ_MAX_VALUE;
+ batadv_ogm_packet->tt_num_changes = 0;
+ batadv_ogm_packet->ttvn = 0;
res = 0;
return res;
}
-static void bat_iv_ogm_iface_disable(struct hard_iface *hard_iface)
+static void batadv_iv_ogm_iface_disable(struct batadv_hard_iface *hard_iface)
{
kfree(hard_iface->packet_buff);
hard_iface->packet_buff = NULL;
}
-static void bat_iv_ogm_iface_update_mac(struct hard_iface *hard_iface)
+static void batadv_iv_ogm_iface_update_mac(struct batadv_hard_iface *hard_iface)
{
- struct batman_ogm_packet *batman_ogm_packet;
+ struct batadv_ogm_packet *batadv_ogm_packet;
- batman_ogm_packet = (struct batman_ogm_packet *)hard_iface->packet_buff;
- memcpy(batman_ogm_packet->orig,
+ batadv_ogm_packet = (struct batadv_ogm_packet *)hard_iface->packet_buff;
+ memcpy(batadv_ogm_packet->orig,
hard_iface->net_dev->dev_addr, ETH_ALEN);
- memcpy(batman_ogm_packet->prev_sender,
+ memcpy(batadv_ogm_packet->prev_sender,
hard_iface->net_dev->dev_addr, ETH_ALEN);
}
-static void bat_iv_ogm_primary_iface_set(struct hard_iface *hard_iface)
+static void
+batadv_iv_ogm_primary_iface_set(struct batadv_hard_iface *hard_iface)
{
- struct batman_ogm_packet *batman_ogm_packet;
+ struct batadv_ogm_packet *batadv_ogm_packet;
- batman_ogm_packet = (struct batman_ogm_packet *)hard_iface->packet_buff;
- batman_ogm_packet->flags = PRIMARIES_FIRST_HOP;
- batman_ogm_packet->header.ttl = TTL;
+ batadv_ogm_packet = (struct batadv_ogm_packet *)hard_iface->packet_buff;
+ batadv_ogm_packet->flags = BATADV_PRIMARIES_FIRST_HOP;
+ batadv_ogm_packet->header.ttl = BATADV_TTL;
}
/* when do we schedule our own ogm to be sent */
-static unsigned long bat_iv_ogm_emit_send_time(const struct bat_priv *bat_priv)
+static unsigned long
+batadv_iv_ogm_emit_send_time(const struct batadv_priv *bat_priv)
{
- return jiffies + msecs_to_jiffies(
- atomic_read(&bat_priv->orig_interval) -
- JITTER + (random32() % 2*JITTER));
+ unsigned int msecs;
+
+ msecs = atomic_read(&bat_priv->orig_interval) - BATADV_JITTER;
+ msecs += (random32() % 2 * BATADV_JITTER);
+
+ return jiffies + msecs_to_jiffies(msecs);
}
/* when do we schedule a ogm packet to be sent */
-static unsigned long bat_iv_ogm_fwd_send_time(void)
+static unsigned long batadv_iv_ogm_fwd_send_time(void)
{
- return jiffies + msecs_to_jiffies(random32() % (JITTER/2));
+ return jiffies + msecs_to_jiffies(random32() % (BATADV_JITTER / 2));
}
/* apply hop penalty for a normal link */
-static uint8_t hop_penalty(uint8_t tq, const struct bat_priv *bat_priv)
+static uint8_t batadv_hop_penalty(uint8_t tq,
+ const struct batadv_priv *bat_priv)
{
int hop_penalty = atomic_read(&bat_priv->hop_penalty);
- return (tq * (TQ_MAX_VALUE - hop_penalty)) / (TQ_MAX_VALUE);
+ int new_tq;
+
+ new_tq = tq * (BATADV_TQ_MAX_VALUE - hop_penalty);
+ new_tq /= BATADV_TQ_MAX_VALUE;
+
+ return new_tq;
}
/* is there another aggregated packet here? */
-static int bat_iv_ogm_aggr_packet(int buff_pos, int packet_len,
- int tt_num_changes)
+static int batadv_iv_ogm_aggr_packet(int buff_pos, int packet_len,
+ int tt_num_changes)
{
int next_buff_pos = 0;
- next_buff_pos += buff_pos + BATMAN_OGM_HLEN;
+ next_buff_pos += buff_pos + BATADV_OGM_HLEN;
next_buff_pos += batadv_tt_len(tt_num_changes);
return (next_buff_pos <= packet_len) &&
- (next_buff_pos <= MAX_AGGREGATION_BYTES);
+ (next_buff_pos <= BATADV_MAX_AGGREGATION_BYTES);
}
/* send a batman ogm to a given interface */
-static void bat_iv_ogm_send_to_if(struct forw_packet *forw_packet,
- struct hard_iface *hard_iface)
+static void batadv_iv_ogm_send_to_if(struct batadv_forw_packet *forw_packet,
+ struct batadv_hard_iface *hard_iface)
{
- struct bat_priv *bat_priv = netdev_priv(hard_iface->soft_iface);
+ struct batadv_priv *bat_priv = netdev_priv(hard_iface->soft_iface);
char *fwd_str;
uint8_t packet_num;
int16_t buff_pos;
- struct batman_ogm_packet *batman_ogm_packet;
+ struct batadv_ogm_packet *batadv_ogm_packet;
struct sk_buff *skb;
- if (hard_iface->if_status != IF_ACTIVE)
+ if (hard_iface->if_status != BATADV_IF_ACTIVE)
return;
packet_num = 0;
buff_pos = 0;
- batman_ogm_packet = (struct batman_ogm_packet *)forw_packet->skb->data;
+ batadv_ogm_packet = (struct batadv_ogm_packet *)forw_packet->skb->data;
/* adjust all flags and log packets */
- while (bat_iv_ogm_aggr_packet(buff_pos, forw_packet->packet_len,
- batman_ogm_packet->tt_num_changes)) {
+ while (batadv_iv_ogm_aggr_packet(buff_pos, forw_packet->packet_len,
+ batadv_ogm_packet->tt_num_changes)) {
/* we might have aggregated direct link packets with an
* ordinary base packet
*/
if ((forw_packet->direct_link_flags & (1 << packet_num)) &&
(forw_packet->if_incoming == hard_iface))
- batman_ogm_packet->flags |= DIRECTLINK;
+ batadv_ogm_packet->flags |= BATADV_DIRECTLINK;
else
- batman_ogm_packet->flags &= ~DIRECTLINK;
+ batadv_ogm_packet->flags &= ~BATADV_DIRECTLINK;
fwd_str = (packet_num > 0 ? "Forwarding" : (forw_packet->own ?
"Sending own" :
"Forwarding"));
- bat_dbg(DBG_BATMAN, bat_priv,
- "%s %spacket (originator %pM, seqno %u, TQ %d, TTL %d, IDF %s, ttvn %d) on interface %s [%pM]\n",
- fwd_str, (packet_num > 0 ? "aggregated " : ""),
- batman_ogm_packet->orig,
- ntohl(batman_ogm_packet->seqno),
- batman_ogm_packet->tq, batman_ogm_packet->header.ttl,
- (batman_ogm_packet->flags & DIRECTLINK ?
- "on" : "off"),
- batman_ogm_packet->ttvn, hard_iface->net_dev->name,
- hard_iface->net_dev->dev_addr);
-
- buff_pos += BATMAN_OGM_HLEN;
- buff_pos += batadv_tt_len(batman_ogm_packet->tt_num_changes);
+ batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
+ "%s %spacket (originator %pM, seqno %u, TQ %d, TTL %d, IDF %s, ttvn %d) on interface %s [%pM]\n",
+ fwd_str, (packet_num > 0 ? "aggregated " : ""),
+ batadv_ogm_packet->orig,
+ ntohl(batadv_ogm_packet->seqno),
+ batadv_ogm_packet->tq, batadv_ogm_packet->header.ttl,
+ (batadv_ogm_packet->flags & BATADV_DIRECTLINK ?
+ "on" : "off"),
+ batadv_ogm_packet->ttvn, hard_iface->net_dev->name,
+ hard_iface->net_dev->dev_addr);
+
+ buff_pos += BATADV_OGM_HLEN;
+ buff_pos += batadv_tt_len(batadv_ogm_packet->tt_num_changes);
packet_num++;
- batman_ogm_packet = (struct batman_ogm_packet *)
+ batadv_ogm_packet = (struct batadv_ogm_packet *)
(forw_packet->skb->data + buff_pos);
}
/* create clone because function is called more than once */
skb = skb_clone(forw_packet->skb, GFP_ATOMIC);
if (skb) {
- batadv_inc_counter(bat_priv, BAT_CNT_MGMT_TX);
- batadv_add_counter(bat_priv, BAT_CNT_MGMT_TX_BYTES,
+ batadv_inc_counter(bat_priv, BATADV_CNT_MGMT_TX);
+ batadv_add_counter(bat_priv, BATADV_CNT_MGMT_TX_BYTES,
skb->len + ETH_HLEN);
batadv_send_skb_packet(skb, hard_iface, batadv_broadcast_addr);
}
}
/* send a batman ogm packet */
-static void bat_iv_ogm_emit(struct forw_packet *forw_packet)
+static void batadv_iv_ogm_emit(struct batadv_forw_packet *forw_packet)
{
- struct hard_iface *hard_iface;
+ struct batadv_hard_iface *hard_iface;
struct net_device *soft_iface;
- struct bat_priv *bat_priv;
- struct hard_iface *primary_if = NULL;
- struct batman_ogm_packet *batman_ogm_packet;
+ struct batadv_priv *bat_priv;
+ struct batadv_hard_iface *primary_if = NULL;
+ struct batadv_ogm_packet *batadv_ogm_packet;
unsigned char directlink;
- batman_ogm_packet = (struct batman_ogm_packet *)
+ batadv_ogm_packet = (struct batadv_ogm_packet *)
(forw_packet->skb->data);
- directlink = (batman_ogm_packet->flags & DIRECTLINK ? 1 : 0);
+ directlink = (batadv_ogm_packet->flags & BATADV_DIRECTLINK ? 1 : 0);
if (!forw_packet->if_incoming) {
pr_err("Error - can't forward packet: incoming iface not specified\n");
soft_iface = forw_packet->if_incoming->soft_iface;
bat_priv = netdev_priv(soft_iface);
- if (forw_packet->if_incoming->if_status != IF_ACTIVE)
+ if (forw_packet->if_incoming->if_status != BATADV_IF_ACTIVE)
goto out;
- primary_if = primary_if_get_selected(bat_priv);
+ primary_if = batadv_primary_if_get_selected(bat_priv);
if (!primary_if)
goto out;
/* multihomed peer assumed
* non-primary OGMs are only broadcasted on their interface
*/
- if ((directlink && (batman_ogm_packet->header.ttl == 1)) ||
+ if ((directlink && (batadv_ogm_packet->header.ttl == 1)) ||
(forw_packet->own && (forw_packet->if_incoming != primary_if))) {
/* FIXME: what about aggregated packets ? */
- bat_dbg(DBG_BATMAN, bat_priv,
- "%s packet (originator %pM, seqno %u, TTL %d) on interface %s [%pM]\n",
- (forw_packet->own ? "Sending own" : "Forwarding"),
- batman_ogm_packet->orig,
- ntohl(batman_ogm_packet->seqno),
- batman_ogm_packet->header.ttl,
- forw_packet->if_incoming->net_dev->name,
- forw_packet->if_incoming->net_dev->dev_addr);
+ batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
+ "%s packet (originator %pM, seqno %u, TTL %d) on interface %s [%pM]\n",
+ (forw_packet->own ? "Sending own" : "Forwarding"),
+ batadv_ogm_packet->orig,
+ ntohl(batadv_ogm_packet->seqno),
+ batadv_ogm_packet->header.ttl,
+ forw_packet->if_incoming->net_dev->name,
+ forw_packet->if_incoming->net_dev->dev_addr);
/* skb is only used once and than forw_packet is free'd */
batadv_send_skb_packet(forw_packet->skb,
if (hard_iface->soft_iface != soft_iface)
continue;
- bat_iv_ogm_send_to_if(forw_packet, hard_iface);
+ batadv_iv_ogm_send_to_if(forw_packet, hard_iface);
}
rcu_read_unlock();
out:
if (primary_if)
- hardif_free_ref(primary_if);
+ batadv_hardif_free_ref(primary_if);
}
/* return true if new_packet can be aggregated with forw_packet */
-static bool bat_iv_ogm_can_aggregate(const struct batman_ogm_packet
- *new_batman_ogm_packet,
- struct bat_priv *bat_priv,
- int packet_len, unsigned long send_time,
- bool directlink,
- const struct hard_iface *if_incoming,
- const struct forw_packet *forw_packet)
+static bool
+batadv_iv_ogm_can_aggregate(const struct batadv_ogm_packet *new_bat_ogm_packet,
+ struct batadv_priv *bat_priv,
+ int packet_len, unsigned long send_time,
+ bool directlink,
+ const struct batadv_hard_iface *if_incoming,
+ const struct batadv_forw_packet *forw_packet)
{
- struct batman_ogm_packet *batman_ogm_packet;
+ struct batadv_ogm_packet *batadv_ogm_packet;
int aggregated_bytes = forw_packet->packet_len + packet_len;
- struct hard_iface *primary_if = NULL;
+ struct batadv_hard_iface *primary_if = NULL;
bool res = false;
+ unsigned long aggregation_end_time;
- batman_ogm_packet = (struct batman_ogm_packet *)forw_packet->skb->data;
+ batadv_ogm_packet = (struct batadv_ogm_packet *)forw_packet->skb->data;
+ aggregation_end_time = send_time;
+ aggregation_end_time += msecs_to_jiffies(BATADV_MAX_AGGREGATION_MS);
/* we can aggregate the current packet to this aggregated packet
* if:
* MAX_AGGREGATION_BYTES
*/
if (time_before(send_time, forw_packet->send_time) &&
- time_after_eq(send_time + msecs_to_jiffies(MAX_AGGREGATION_MS),
- forw_packet->send_time) &&
- (aggregated_bytes <= MAX_AGGREGATION_BYTES)) {
+ time_after_eq(aggregation_end_time, forw_packet->send_time) &&
+ (aggregated_bytes <= BATADV_MAX_AGGREGATION_BYTES)) {
/* check aggregation compatibility
* -> direct link packets are broadcasted on
* a "global" packet as well as the base
* packet
*/
- primary_if = primary_if_get_selected(bat_priv);
+ primary_if = batadv_primary_if_get_selected(bat_priv);
if (!primary_if)
goto out;
* are flooded through the net
*/
if ((!directlink) &&
- (!(batman_ogm_packet->flags & DIRECTLINK)) &&
- (batman_ogm_packet->header.ttl != 1) &&
+ (!(batadv_ogm_packet->flags & BATADV_DIRECTLINK)) &&
+ (batadv_ogm_packet->header.ttl != 1) &&
/* own packets originating non-primary
* interfaces leave only that interface
* interface only - we still can aggregate
*/
if ((directlink) &&
- (new_batman_ogm_packet->header.ttl == 1) &&
+ (new_bat_ogm_packet->header.ttl == 1) &&
(forw_packet->if_incoming == if_incoming) &&
/* packets from direct neighbors or
* own secondary interface packets
* (= secondary interface packets in general)
*/
- (batman_ogm_packet->flags & DIRECTLINK ||
+ (batadv_ogm_packet->flags & BATADV_DIRECTLINK ||
(forw_packet->own &&
forw_packet->if_incoming != primary_if))) {
res = true;
out:
if (primary_if)
- hardif_free_ref(primary_if);
+ batadv_hardif_free_ref(primary_if);
return res;
}
/* create a new aggregated packet and add this packet to it */
-static void bat_iv_ogm_aggregate_new(const unsigned char *packet_buff,
- int packet_len, unsigned long send_time,
- bool direct_link,
- struct hard_iface *if_incoming,
- int own_packet)
+static void batadv_iv_ogm_aggregate_new(const unsigned char *packet_buff,
+ int packet_len, unsigned long send_time,
+ bool direct_link,
+ struct batadv_hard_iface *if_incoming,
+ int own_packet)
{
- struct bat_priv *bat_priv = netdev_priv(if_incoming->soft_iface);
- struct forw_packet *forw_packet_aggr;
+ struct batadv_priv *bat_priv = netdev_priv(if_incoming->soft_iface);
+ struct batadv_forw_packet *forw_packet_aggr;
unsigned char *skb_buff;
+ unsigned int skb_size;
if (!atomic_inc_not_zero(&if_incoming->refcount))
return;
/* own packet should always be scheduled */
if (!own_packet) {
- if (!atomic_dec_not_zero(&bat_priv->batman_queue_left)) {
- bat_dbg(DBG_BATMAN, bat_priv,
- "batman packet queue full\n");
+ if (!batadv_atomic_dec_not_zero(&bat_priv->batman_queue_left)) {
+ batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
+ "batman packet queue full\n");
goto out;
}
}
}
if ((atomic_read(&bat_priv->aggregated_ogms)) &&
- (packet_len < MAX_AGGREGATION_BYTES))
- forw_packet_aggr->skb = dev_alloc_skb(MAX_AGGREGATION_BYTES +
- ETH_HLEN);
+ (packet_len < BATADV_MAX_AGGREGATION_BYTES))
+ skb_size = BATADV_MAX_AGGREGATION_BYTES + ETH_HLEN;
else
- forw_packet_aggr->skb = dev_alloc_skb(packet_len + ETH_HLEN);
+ skb_size = packet_len + ETH_HLEN;
+ forw_packet_aggr->skb = dev_alloc_skb(skb_size);
if (!forw_packet_aggr->skb) {
if (!own_packet)
atomic_inc(&bat_priv->batman_queue_left);
forw_packet_aggr->own = own_packet;
forw_packet_aggr->if_incoming = if_incoming;
forw_packet_aggr->num_packets = 0;
- forw_packet_aggr->direct_link_flags = NO_FLAGS;
+ forw_packet_aggr->direct_link_flags = BATADV_NO_FLAGS;
forw_packet_aggr->send_time = send_time;
/* save packet direct link flag status */
return;
out:
- hardif_free_ref(if_incoming);
+ batadv_hardif_free_ref(if_incoming);
}
/* aggregate a new packet into the existing ogm packet */
-static void bat_iv_ogm_aggregate(struct forw_packet *forw_packet_aggr,
- const unsigned char *packet_buff,
- int packet_len, bool direct_link)
+static void batadv_iv_ogm_aggregate(struct batadv_forw_packet *forw_packet_aggr,
+ const unsigned char *packet_buff,
+ int packet_len, bool direct_link)
{
unsigned char *skb_buff;
(1 << forw_packet_aggr->num_packets);
}
-static void bat_iv_ogm_queue_add(struct bat_priv *bat_priv,
- unsigned char *packet_buff,
- int packet_len, struct hard_iface *if_incoming,
- int own_packet, unsigned long send_time)
+static void batadv_iv_ogm_queue_add(struct batadv_priv *bat_priv,
+ unsigned char *packet_buff,
+ int packet_len,
+ struct batadv_hard_iface *if_incoming,
+ int own_packet, unsigned long send_time)
{
/* _aggr -> pointer to the packet we want to aggregate with
* _pos -> pointer to the position in the queue
*/
- struct forw_packet *forw_packet_aggr = NULL, *forw_packet_pos = NULL;
+ struct batadv_forw_packet *forw_packet_aggr = NULL;
+ struct batadv_forw_packet *forw_packet_pos = NULL;
struct hlist_node *tmp_node;
- struct batman_ogm_packet *batman_ogm_packet;
+ struct batadv_ogm_packet *batadv_ogm_packet;
bool direct_link;
+ unsigned long max_aggregation_jiffies;
- batman_ogm_packet = (struct batman_ogm_packet *)packet_buff;
- direct_link = batman_ogm_packet->flags & DIRECTLINK ? 1 : 0;
+ batadv_ogm_packet = (struct batadv_ogm_packet *)packet_buff;
+ direct_link = batadv_ogm_packet->flags & BATADV_DIRECTLINK ? 1 : 0;
+ max_aggregation_jiffies = msecs_to_jiffies(BATADV_MAX_AGGREGATION_MS);
/* find position for the packet in the forward queue */
spin_lock_bh(&bat_priv->forw_bat_list_lock);
if ((atomic_read(&bat_priv->aggregated_ogms)) && (!own_packet)) {
hlist_for_each_entry(forw_packet_pos, tmp_node,
&bat_priv->forw_bat_list, list) {
- if (bat_iv_ogm_can_aggregate(batman_ogm_packet,
- bat_priv, packet_len,
- send_time, direct_link,
- if_incoming,
- forw_packet_pos)) {
+ if (batadv_iv_ogm_can_aggregate(batadv_ogm_packet,
+ bat_priv, packet_len,
+ send_time, direct_link,
+ if_incoming,
+ forw_packet_pos)) {
forw_packet_aggr = forw_packet_pos;
break;
}
* we hold it back for a while, so that it might be aggregated
* later on
*/
- if ((!own_packet) &&
- (atomic_read(&bat_priv->aggregated_ogms)))
- send_time += msecs_to_jiffies(MAX_AGGREGATION_MS);
+ if (!own_packet && atomic_read(&bat_priv->aggregated_ogms))
+ send_time += max_aggregation_jiffies;
- bat_iv_ogm_aggregate_new(packet_buff, packet_len,
- send_time, direct_link,
- if_incoming, own_packet);
+ batadv_iv_ogm_aggregate_new(packet_buff, packet_len,
+ send_time, direct_link,
+ if_incoming, own_packet);
} else {
- bat_iv_ogm_aggregate(forw_packet_aggr, packet_buff,
- packet_len, direct_link);
+ batadv_iv_ogm_aggregate(forw_packet_aggr, packet_buff,
+ packet_len, direct_link);
spin_unlock_bh(&bat_priv->forw_bat_list_lock);
}
}
-static void bat_iv_ogm_forward(struct orig_node *orig_node,
- const struct ethhdr *ethhdr,
- struct batman_ogm_packet *batman_ogm_packet,
- bool is_single_hop_neigh,
- bool is_from_best_next_hop,
- struct hard_iface *if_incoming)
+static void batadv_iv_ogm_forward(struct batadv_orig_node *orig_node,
+ const struct ethhdr *ethhdr,
+ struct batadv_ogm_packet *batadv_ogm_packet,
+ bool is_single_hop_neigh,
+ bool is_from_best_next_hop,
+ struct batadv_hard_iface *if_incoming)
{
- struct bat_priv *bat_priv = netdev_priv(if_incoming->soft_iface);
+ struct batadv_priv *bat_priv = netdev_priv(if_incoming->soft_iface);
uint8_t tt_num_changes;
- if (batman_ogm_packet->header.ttl <= 1) {
- bat_dbg(DBG_BATMAN, bat_priv, "ttl exceeded\n");
+ if (batadv_ogm_packet->header.ttl <= 1) {
+ batadv_dbg(BATADV_DBG_BATMAN, bat_priv, "ttl exceeded\n");
return;
}
* simply drop the ogm.
*/
if (is_single_hop_neigh)
- batman_ogm_packet->flags |= NOT_BEST_NEXT_HOP;
+ batadv_ogm_packet->flags |= BATADV_NOT_BEST_NEXT_HOP;
else
return;
}
- tt_num_changes = batman_ogm_packet->tt_num_changes;
+ tt_num_changes = batadv_ogm_packet->tt_num_changes;
- batman_ogm_packet->header.ttl--;
- memcpy(batman_ogm_packet->prev_sender, ethhdr->h_source, ETH_ALEN);
+ batadv_ogm_packet->header.ttl--;
+ memcpy(batadv_ogm_packet->prev_sender, ethhdr->h_source, ETH_ALEN);
/* apply hop penalty */
- batman_ogm_packet->tq = hop_penalty(batman_ogm_packet->tq, bat_priv);
+ batadv_ogm_packet->tq = batadv_hop_penalty(batadv_ogm_packet->tq,
+ bat_priv);
- bat_dbg(DBG_BATMAN, bat_priv,
- "Forwarding packet: tq: %i, ttl: %i\n",
- batman_ogm_packet->tq, batman_ogm_packet->header.ttl);
+ batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
+ "Forwarding packet: tq: %i, ttl: %i\n",
+ batadv_ogm_packet->tq, batadv_ogm_packet->header.ttl);
/* switch of primaries first hop flag when forwarding */
- batman_ogm_packet->flags &= ~PRIMARIES_FIRST_HOP;
+ batadv_ogm_packet->flags &= ~BATADV_PRIMARIES_FIRST_HOP;
if (is_single_hop_neigh)
- batman_ogm_packet->flags |= DIRECTLINK;
+ batadv_ogm_packet->flags |= BATADV_DIRECTLINK;
else
- batman_ogm_packet->flags &= ~DIRECTLINK;
+ batadv_ogm_packet->flags &= ~BATADV_DIRECTLINK;
- bat_iv_ogm_queue_add(bat_priv, (unsigned char *)batman_ogm_packet,
- BATMAN_OGM_HLEN + batadv_tt_len(tt_num_changes),
- if_incoming, 0, bat_iv_ogm_fwd_send_time());
+ batadv_iv_ogm_queue_add(bat_priv, (unsigned char *)batadv_ogm_packet,
+ BATADV_OGM_HLEN + batadv_tt_len(tt_num_changes),
+ if_incoming, 0, batadv_iv_ogm_fwd_send_time());
}
-static void bat_iv_ogm_schedule(struct hard_iface *hard_iface)
+static void batadv_iv_ogm_schedule(struct batadv_hard_iface *hard_iface)
{
- struct bat_priv *bat_priv = netdev_priv(hard_iface->soft_iface);
- struct batman_ogm_packet *batman_ogm_packet;
- struct hard_iface *primary_if;
+ struct batadv_priv *bat_priv = netdev_priv(hard_iface->soft_iface);
+ struct batadv_ogm_packet *batadv_ogm_packet;
+ struct batadv_hard_iface *primary_if;
int vis_server, tt_num_changes = 0;
vis_server = atomic_read(&bat_priv->vis_mode);
- primary_if = primary_if_get_selected(bat_priv);
+ primary_if = batadv_primary_if_get_selected(bat_priv);
if (hard_iface == primary_if)
tt_num_changes = batadv_tt_append_diff(bat_priv,
&hard_iface->packet_buff,
&hard_iface->packet_len,
- BATMAN_OGM_HLEN);
+ BATADV_OGM_HLEN);
- batman_ogm_packet = (struct batman_ogm_packet *)hard_iface->packet_buff;
+ batadv_ogm_packet = (struct batadv_ogm_packet *)hard_iface->packet_buff;
/* change sequence number to network order */
- batman_ogm_packet->seqno =
+ batadv_ogm_packet->seqno =
htonl((uint32_t)atomic_read(&hard_iface->seqno));
atomic_inc(&hard_iface->seqno);
- batman_ogm_packet->ttvn = atomic_read(&bat_priv->ttvn);
- batman_ogm_packet->tt_crc = htons(bat_priv->tt_crc);
+ batadv_ogm_packet->ttvn = atomic_read(&bat_priv->ttvn);
+ batadv_ogm_packet->tt_crc = htons(bat_priv->tt_crc);
if (tt_num_changes >= 0)
- batman_ogm_packet->tt_num_changes = tt_num_changes;
+ batadv_ogm_packet->tt_num_changes = tt_num_changes;
- if (vis_server == VIS_TYPE_SERVER_SYNC)
- batman_ogm_packet->flags |= VIS_SERVER;
+ if (vis_server == BATADV_VIS_TYPE_SERVER_SYNC)
+ batadv_ogm_packet->flags |= BATADV_VIS_SERVER;
else
- batman_ogm_packet->flags &= ~VIS_SERVER;
+ batadv_ogm_packet->flags &= ~BATADV_VIS_SERVER;
if ((hard_iface == primary_if) &&
- (atomic_read(&bat_priv->gw_mode) == GW_MODE_SERVER))
- batman_ogm_packet->gw_flags =
+ (atomic_read(&bat_priv->gw_mode) == BATADV_GW_MODE_SERVER))
+ batadv_ogm_packet->gw_flags =
(uint8_t)atomic_read(&bat_priv->gw_bandwidth);
else
- batman_ogm_packet->gw_flags = NO_FLAGS;
+ batadv_ogm_packet->gw_flags = BATADV_NO_FLAGS;
batadv_slide_own_bcast_window(hard_iface);
- bat_iv_ogm_queue_add(bat_priv, hard_iface->packet_buff,
- hard_iface->packet_len, hard_iface, 1,
- bat_iv_ogm_emit_send_time(bat_priv));
+ batadv_iv_ogm_queue_add(bat_priv, hard_iface->packet_buff,
+ hard_iface->packet_len, hard_iface, 1,
+ batadv_iv_ogm_emit_send_time(bat_priv));
if (primary_if)
- hardif_free_ref(primary_if);
+ batadv_hardif_free_ref(primary_if);
}
-static void bat_iv_ogm_orig_update(struct bat_priv *bat_priv,
- struct orig_node *orig_node,
- const struct ethhdr *ethhdr,
- const struct batman_ogm_packet
- *batman_ogm_packet,
- struct hard_iface *if_incoming,
- const unsigned char *tt_buff,
- int is_duplicate)
+static void
+batadv_iv_ogm_orig_update(struct batadv_priv *bat_priv,
+ struct batadv_orig_node *orig_node,
+ const struct ethhdr *ethhdr,
+ const struct batadv_ogm_packet *batadv_ogm_packet,
+ struct batadv_hard_iface *if_incoming,
+ const unsigned char *tt_buff,
+ int is_duplicate)
{
- struct neigh_node *neigh_node = NULL, *tmp_neigh_node = NULL;
- struct neigh_node *router = NULL;
- struct orig_node *orig_node_tmp;
+ struct batadv_neigh_node *neigh_node = NULL, *tmp_neigh_node = NULL;
+ struct batadv_neigh_node *router = NULL;
+ struct batadv_orig_node *orig_node_tmp;
struct hlist_node *node;
uint8_t bcast_own_sum_orig, bcast_own_sum_neigh;
+ uint8_t *neigh_addr;
- bat_dbg(DBG_BATMAN, bat_priv,
- "update_originator(): Searching and updating originator entry of received packet\n");
+ batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
+ "update_originator(): Searching and updating originator entry of received packet\n");
rcu_read_lock();
hlist_for_each_entry_rcu(tmp_neigh_node, node,
&orig_node->neigh_list, list) {
- if (compare_eth(tmp_neigh_node->addr, ethhdr->h_source) &&
- (tmp_neigh_node->if_incoming == if_incoming) &&
- atomic_inc_not_zero(&tmp_neigh_node->refcount)) {
+ neigh_addr = tmp_neigh_node->addr;
+ if (batadv_compare_eth(neigh_addr, ethhdr->h_source) &&
+ tmp_neigh_node->if_incoming == if_incoming &&
+ atomic_inc_not_zero(&tmp_neigh_node->refcount)) {
if (neigh_node)
batadv_neigh_node_free_ref(neigh_node);
neigh_node = tmp_neigh_node;
}
if (!neigh_node) {
- struct orig_node *orig_tmp;
+ struct batadv_orig_node *orig_tmp;
orig_tmp = batadv_get_orig_node(bat_priv, ethhdr->h_source);
if (!orig_tmp)
goto unlock;
- neigh_node = bat_iv_ogm_neigh_new(if_incoming, ethhdr->h_source,
- orig_node, orig_tmp,
- batman_ogm_packet->seqno);
+ neigh_node = batadv_iv_ogm_neigh_new(if_incoming,
+ ethhdr->h_source,
+ orig_node, orig_tmp,
+ batadv_ogm_packet->seqno);
batadv_orig_node_free_ref(orig_tmp);
if (!neigh_node)
goto unlock;
} else
- bat_dbg(DBG_BATMAN, bat_priv,
- "Updating existing last-hop neighbor of originator\n");
+ batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
+ "Updating existing last-hop neighbor of originator\n");
rcu_read_unlock();
- orig_node->flags = batman_ogm_packet->flags;
+ orig_node->flags = batadv_ogm_packet->flags;
neigh_node->last_seen = jiffies;
spin_lock_bh(&neigh_node->lq_update_lock);
batadv_ring_buffer_set(neigh_node->tq_recv,
&neigh_node->tq_index,
- batman_ogm_packet->tq);
+ batadv_ogm_packet->tq);
neigh_node->tq_avg = batadv_ring_buffer_avg(neigh_node->tq_recv);
spin_unlock_bh(&neigh_node->lq_update_lock);
if (!is_duplicate) {
- orig_node->last_ttl = batman_ogm_packet->header.ttl;
- neigh_node->last_ttl = batman_ogm_packet->header.ttl;
+ orig_node->last_ttl = batadv_ogm_packet->header.ttl;
+ neigh_node->last_ttl = batadv_ogm_packet->header.ttl;
}
batadv_bonding_candidate_add(orig_node, neigh_node);
/* I have to check for transtable changes only if the OGM has been
* sent through a primary interface
*/
- if (((batman_ogm_packet->orig != ethhdr->h_source) &&
- (batman_ogm_packet->header.ttl > 2)) ||
- (batman_ogm_packet->flags & PRIMARIES_FIRST_HOP))
+ if (((batadv_ogm_packet->orig != ethhdr->h_source) &&
+ (batadv_ogm_packet->header.ttl > 2)) ||
+ (batadv_ogm_packet->flags & BATADV_PRIMARIES_FIRST_HOP))
batadv_tt_update_orig(bat_priv, orig_node, tt_buff,
- batman_ogm_packet->tt_num_changes,
- batman_ogm_packet->ttvn,
- ntohs(batman_ogm_packet->tt_crc));
+ batadv_ogm_packet->tt_num_changes,
+ batadv_ogm_packet->ttvn,
+ ntohs(batadv_ogm_packet->tt_crc));
- if (orig_node->gw_flags != batman_ogm_packet->gw_flags)
+ if (orig_node->gw_flags != batadv_ogm_packet->gw_flags)
batadv_gw_node_update(bat_priv, orig_node,
- batman_ogm_packet->gw_flags);
+ batadv_ogm_packet->gw_flags);
- orig_node->gw_flags = batman_ogm_packet->gw_flags;
+ orig_node->gw_flags = batadv_ogm_packet->gw_flags;
/* restart gateway selection if fast or late switching was enabled */
if ((orig_node->gw_flags) &&
- (atomic_read(&bat_priv->gw_mode) == GW_MODE_CLIENT) &&
+ (atomic_read(&bat_priv->gw_mode) == BATADV_GW_MODE_CLIENT) &&
(atomic_read(&bat_priv->gw_sel_class) > 2))
batadv_gw_check_election(bat_priv, orig_node);
batadv_neigh_node_free_ref(router);
}
-static int bat_iv_ogm_calc_tq(struct orig_node *orig_node,
- struct orig_node *orig_neigh_node,
- struct batman_ogm_packet *batman_ogm_packet,
- struct hard_iface *if_incoming)
+static int batadv_iv_ogm_calc_tq(struct batadv_orig_node *orig_node,
+ struct batadv_orig_node *orig_neigh_node,
+ struct batadv_ogm_packet *batadv_ogm_packet,
+ struct batadv_hard_iface *if_incoming)
{
- struct bat_priv *bat_priv = netdev_priv(if_incoming->soft_iface);
- struct neigh_node *neigh_node = NULL, *tmp_neigh_node;
+ struct batadv_priv *bat_priv = netdev_priv(if_incoming->soft_iface);
+ struct batadv_neigh_node *neigh_node = NULL, *tmp_neigh_node;
struct hlist_node *node;
uint8_t total_count;
- uint8_t orig_eq_count, neigh_rq_count, tq_own;
- int tq_asym_penalty, ret = 0;
+ uint8_t orig_eq_count, neigh_rq_count, neigh_rq_inv, tq_own;
+ unsigned int neigh_rq_inv_cube, neigh_rq_max_cube;
+ int tq_asym_penalty, inv_asym_penalty, ret = 0;
+ unsigned int combined_tq;
/* find corresponding one hop neighbor */
rcu_read_lock();
hlist_for_each_entry_rcu(tmp_neigh_node, node,
&orig_neigh_node->neigh_list, list) {
- if (!compare_eth(tmp_neigh_node->addr, orig_neigh_node->orig))
+ if (!batadv_compare_eth(tmp_neigh_node->addr,
+ orig_neigh_node->orig))
continue;
if (tmp_neigh_node->if_incoming != if_incoming)
rcu_read_unlock();
if (!neigh_node)
- neigh_node = bat_iv_ogm_neigh_new(if_incoming,
- orig_neigh_node->orig,
- orig_neigh_node,
- orig_neigh_node,
- batman_ogm_packet->seqno);
+ neigh_node = batadv_iv_ogm_neigh_new(if_incoming,
+ orig_neigh_node->orig,
+ orig_neigh_node,
+ orig_neigh_node,
+ batadv_ogm_packet->seqno);
if (!neigh_node)
goto out;
/* if we have too few packets (too less data) we set tq_own to zero
* if we receive too few packets it is not considered bidirectional
*/
- if ((total_count < TQ_LOCAL_BIDRECT_SEND_MINIMUM) ||
- (neigh_rq_count < TQ_LOCAL_BIDRECT_RECV_MINIMUM))
+ if (total_count < BATADV_TQ_LOCAL_BIDRECT_SEND_MINIMUM ||
+ neigh_rq_count < BATADV_TQ_LOCAL_BIDRECT_RECV_MINIMUM)
tq_own = 0;
else
/* neigh_node->real_packet_count is never zero as we
* only purge old information when getting new
* information
*/
- tq_own = (TQ_MAX_VALUE * total_count) / neigh_rq_count;
+ tq_own = (BATADV_TQ_MAX_VALUE * total_count) / neigh_rq_count;
/* 1 - ((1-x) ** 3), normalized to TQ_MAX_VALUE this does
* affect the nearly-symmetric links only a little, but
* punishes asymmetric links more. This will give a value
* between 0 and TQ_MAX_VALUE
*/
- tq_asym_penalty = TQ_MAX_VALUE - (TQ_MAX_VALUE *
- (TQ_LOCAL_WINDOW_SIZE - neigh_rq_count) *
- (TQ_LOCAL_WINDOW_SIZE - neigh_rq_count) *
- (TQ_LOCAL_WINDOW_SIZE - neigh_rq_count)) /
- (TQ_LOCAL_WINDOW_SIZE *
- TQ_LOCAL_WINDOW_SIZE *
- TQ_LOCAL_WINDOW_SIZE);
-
- batman_ogm_packet->tq = ((batman_ogm_packet->tq * tq_own
- * tq_asym_penalty) /
- (TQ_MAX_VALUE * TQ_MAX_VALUE));
-
- bat_dbg(DBG_BATMAN, bat_priv,
- "bidirectional: orig = %-15pM neigh = %-15pM => own_bcast = %2i, real recv = %2i, local tq: %3i, asym_penalty: %3i, total tq: %3i\n",
- orig_node->orig, orig_neigh_node->orig, total_count,
- neigh_rq_count, tq_own, tq_asym_penalty, batman_ogm_packet->tq);
+ neigh_rq_inv = BATADV_TQ_LOCAL_WINDOW_SIZE - neigh_rq_count;
+ neigh_rq_inv_cube = neigh_rq_inv * neigh_rq_inv * neigh_rq_inv;
+ neigh_rq_max_cube = BATADV_TQ_LOCAL_WINDOW_SIZE *
+ BATADV_TQ_LOCAL_WINDOW_SIZE *
+ BATADV_TQ_LOCAL_WINDOW_SIZE;
+ inv_asym_penalty = BATADV_TQ_MAX_VALUE * neigh_rq_inv_cube;
+ inv_asym_penalty /= neigh_rq_max_cube;
+ tq_asym_penalty = BATADV_TQ_MAX_VALUE - inv_asym_penalty;
+
+ combined_tq = batadv_ogm_packet->tq * tq_own * tq_asym_penalty;
+ combined_tq /= BATADV_TQ_MAX_VALUE * BATADV_TQ_MAX_VALUE;
+ batadv_ogm_packet->tq = combined_tq;
+
+ batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
+ "bidirectional: orig = %-15pM neigh = %-15pM => own_bcast = %2i, real recv = %2i, local tq: %3i, asym_penalty: %3i, total tq: %3i\n",
+ orig_node->orig, orig_neigh_node->orig, total_count,
+ neigh_rq_count, tq_own,
+ tq_asym_penalty, batadv_ogm_packet->tq);
/* if link has the minimum required transmission quality
* consider it bidirectional
*/
- if (batman_ogm_packet->tq >= TQ_TOTAL_BIDRECT_LIMIT)
+ if (batadv_ogm_packet->tq >= BATADV_TQ_TOTAL_BIDRECT_LIMIT)
ret = 1;
out:
* -1 the packet is old and has been received while the seqno window
* was protected. Caller should drop it.
*/
-static int bat_iv_ogm_update_seqnos(const struct ethhdr *ethhdr,
- const struct batman_ogm_packet
- *batman_ogm_packet,
- const struct hard_iface *if_incoming)
+static int
+batadv_iv_ogm_update_seqnos(const struct ethhdr *ethhdr,
+ const struct batadv_ogm_packet *batadv_ogm_packet,
+ const struct batadv_hard_iface *if_incoming)
{
- struct bat_priv *bat_priv = netdev_priv(if_incoming->soft_iface);
- struct orig_node *orig_node;
- struct neigh_node *tmp_neigh_node;
+ struct batadv_priv *bat_priv = netdev_priv(if_incoming->soft_iface);
+ struct batadv_orig_node *orig_node;
+ struct batadv_neigh_node *tmp_neigh_node;
struct hlist_node *node;
int is_duplicate = 0;
int32_t seq_diff;
int need_update = 0;
int set_mark, ret = -1;
- uint32_t seqno = ntohl(batman_ogm_packet->seqno);
+ uint32_t seqno = ntohl(batadv_ogm_packet->seqno);
+ uint8_t *neigh_addr;
- orig_node = batadv_get_orig_node(bat_priv, batman_ogm_packet->orig);
+ orig_node = batadv_get_orig_node(bat_priv, batadv_ogm_packet->orig);
if (!orig_node)
return 0;
orig_node->last_real_seqno,
seqno);
- if (compare_eth(tmp_neigh_node->addr, ethhdr->h_source) &&
- (tmp_neigh_node->if_incoming == if_incoming))
+ neigh_addr = tmp_neigh_node->addr;
+ if (batadv_compare_eth(neigh_addr, ethhdr->h_source) &&
+ tmp_neigh_node->if_incoming == if_incoming)
set_mark = 1;
else
set_mark = 0;
tmp_neigh_node->real_packet_count =
bitmap_weight(tmp_neigh_node->real_bits,
- TQ_LOCAL_WINDOW_SIZE);
+ BATADV_TQ_LOCAL_WINDOW_SIZE);
}
rcu_read_unlock();
if (need_update) {
- bat_dbg(DBG_BATMAN, bat_priv,
- "updating last_seqno: old %u, new %u\n",
- orig_node->last_real_seqno, seqno);
+ batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
+ "updating last_seqno: old %u, new %u\n",
+ orig_node->last_real_seqno, seqno);
orig_node->last_real_seqno = seqno;
}
return ret;
}
-static void bat_iv_ogm_process(const struct ethhdr *ethhdr,
- struct batman_ogm_packet *batman_ogm_packet,
- const unsigned char *tt_buff,
- struct hard_iface *if_incoming)
+static void batadv_iv_ogm_process(const struct ethhdr *ethhdr,
+ struct batadv_ogm_packet *batadv_ogm_packet,
+ const unsigned char *tt_buff,
+ struct batadv_hard_iface *if_incoming)
{
- struct bat_priv *bat_priv = netdev_priv(if_incoming->soft_iface);
- struct hard_iface *hard_iface;
- struct orig_node *orig_neigh_node, *orig_node;
- struct neigh_node *router = NULL, *router_router = NULL;
- struct neigh_node *orig_neigh_router = NULL;
+ struct batadv_priv *bat_priv = netdev_priv(if_incoming->soft_iface);
+ struct batadv_hard_iface *hard_iface;
+ struct batadv_orig_node *orig_neigh_node, *orig_node;
+ struct batadv_neigh_node *router = NULL, *router_router = NULL;
+ struct batadv_neigh_node *orig_neigh_router = NULL;
int has_directlink_flag;
int is_my_addr = 0, is_my_orig = 0, is_my_oldorig = 0;
- int is_broadcast = 0, is_bidirectional;
+ int is_broadcast = 0, is_bidirect;
bool is_single_hop_neigh = false;
bool is_from_best_next_hop = false;
- int is_duplicate;
+ int is_duplicate, sameseq, simlar_ttl;
uint32_t if_incoming_seqno;
+ uint8_t *prev_sender;
/* Silently drop when the batman packet is actually not a
* correct packet.
* it as an additional length.
*
* TODO: A more sane solution would be to have a bit in the
- * batman_ogm_packet to detect whether the packet is the last
+ * batadv_ogm_packet to detect whether the packet is the last
* packet in an aggregation. Here we expect that the padding
* is always zero (or not 0x01)
*/
- if (batman_ogm_packet->header.packet_type != BAT_IV_OGM)
+ if (batadv_ogm_packet->header.packet_type != BATADV_IV_OGM)
return;
/* could be changed by schedule_own_packet() */
if_incoming_seqno = atomic_read(&if_incoming->seqno);
- has_directlink_flag = (batman_ogm_packet->flags & DIRECTLINK ? 1 : 0);
+ if (batadv_ogm_packet->flags & BATADV_DIRECTLINK)
+ has_directlink_flag = 1;
+ else
+ has_directlink_flag = 0;
- if (compare_eth(ethhdr->h_source, batman_ogm_packet->orig))
+ if (batadv_compare_eth(ethhdr->h_source, batadv_ogm_packet->orig))
is_single_hop_neigh = true;
- bat_dbg(DBG_BATMAN, bat_priv,
- "Received BATMAN packet via NB: %pM, IF: %s [%pM] (from OG: %pM, via prev OG: %pM, seqno %u, ttvn %u, crc %u, changes %u, td %d, TTL %d, V %d, IDF %d)\n",
- ethhdr->h_source, if_incoming->net_dev->name,
- if_incoming->net_dev->dev_addr, batman_ogm_packet->orig,
- batman_ogm_packet->prev_sender, ntohl(batman_ogm_packet->seqno),
- batman_ogm_packet->ttvn, ntohs(batman_ogm_packet->tt_crc),
- batman_ogm_packet->tt_num_changes, batman_ogm_packet->tq,
- batman_ogm_packet->header.ttl,
- batman_ogm_packet->header.version, has_directlink_flag);
+ batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
+ "Received BATMAN packet via NB: %pM, IF: %s [%pM] (from OG: %pM, via prev OG: %pM, seqno %u, ttvn %u, crc %u, changes %u, td %d, TTL %d, V %d, IDF %d)\n",
+ ethhdr->h_source, if_incoming->net_dev->name,
+ if_incoming->net_dev->dev_addr, batadv_ogm_packet->orig,
+ batadv_ogm_packet->prev_sender,
+ ntohl(batadv_ogm_packet->seqno), batadv_ogm_packet->ttvn,
+ ntohs(batadv_ogm_packet->tt_crc),
+ batadv_ogm_packet->tt_num_changes, batadv_ogm_packet->tq,
+ batadv_ogm_packet->header.ttl,
+ batadv_ogm_packet->header.version, has_directlink_flag);
rcu_read_lock();
list_for_each_entry_rcu(hard_iface, &batadv_hardif_list, list) {
- if (hard_iface->if_status != IF_ACTIVE)
+ if (hard_iface->if_status != BATADV_IF_ACTIVE)
continue;
if (hard_iface->soft_iface != if_incoming->soft_iface)
continue;
- if (compare_eth(ethhdr->h_source,
- hard_iface->net_dev->dev_addr))
+ if (batadv_compare_eth(ethhdr->h_source,
+ hard_iface->net_dev->dev_addr))
is_my_addr = 1;
- if (compare_eth(batman_ogm_packet->orig,
- hard_iface->net_dev->dev_addr))
+ if (batadv_compare_eth(batadv_ogm_packet->orig,
+ hard_iface->net_dev->dev_addr))
is_my_orig = 1;
- if (compare_eth(batman_ogm_packet->prev_sender,
- hard_iface->net_dev->dev_addr))
+ if (batadv_compare_eth(batadv_ogm_packet->prev_sender,
+ hard_iface->net_dev->dev_addr))
is_my_oldorig = 1;
if (is_broadcast_ether_addr(ethhdr->h_source))
}
rcu_read_unlock();
- if (batman_ogm_packet->header.version != COMPAT_VERSION) {
- bat_dbg(DBG_BATMAN, bat_priv,
- "Drop packet: incompatible batman version (%i)\n",
- batman_ogm_packet->header.version);
+ if (batadv_ogm_packet->header.version != BATADV_COMPAT_VERSION) {
+ batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
+ "Drop packet: incompatible batman version (%i)\n",
+ batadv_ogm_packet->header.version);
return;
}
if (is_my_addr) {
- bat_dbg(DBG_BATMAN, bat_priv,
- "Drop packet: received my own broadcast (sender: %pM)\n",
- ethhdr->h_source);
+ batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
+ "Drop packet: received my own broadcast (sender: %pM)\n",
+ ethhdr->h_source);
return;
}
if (is_broadcast) {
- bat_dbg(DBG_BATMAN, bat_priv,
- "Drop packet: ignoring all packets with broadcast source addr (sender: %pM)\n",
- ethhdr->h_source);
+ batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
+ "Drop packet: ignoring all packets with broadcast source addr (sender: %pM)\n",
+ ethhdr->h_source);
return;
}
unsigned long *word;
int offset;
int32_t bit_pos;
+ int16_t if_num;
+ uint8_t *weight;
orig_neigh_node = batadv_get_orig_node(bat_priv,
ethhdr->h_source);
* save packet seqno for bidirectional check
*/
if (has_directlink_flag &&
- compare_eth(if_incoming->net_dev->dev_addr,
- batman_ogm_packet->orig)) {
- offset = if_incoming->if_num * NUM_WORDS;
+ batadv_compare_eth(if_incoming->net_dev->dev_addr,
+ batadv_ogm_packet->orig)) {
+ if_num = if_incoming->if_num;
+ offset = if_num * BATADV_NUM_WORDS;
spin_lock_bh(&orig_neigh_node->ogm_cnt_lock);
word = &(orig_neigh_node->bcast_own[offset]);
bit_pos = if_incoming_seqno - 2;
- bit_pos -= ntohl(batman_ogm_packet->seqno);
+ bit_pos -= ntohl(batadv_ogm_packet->seqno);
batadv_set_bit(word, bit_pos);
- orig_neigh_node->bcast_own_sum[if_incoming->if_num] =
- bitmap_weight(word, TQ_LOCAL_WINDOW_SIZE);
+ weight = &orig_neigh_node->bcast_own_sum[if_num];
+ *weight = bitmap_weight(word,
+ BATADV_TQ_LOCAL_WINDOW_SIZE);
spin_unlock_bh(&orig_neigh_node->ogm_cnt_lock);
}
- bat_dbg(DBG_BATMAN, bat_priv,
- "Drop packet: originator packet from myself (via neighbor)\n");
+ batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
+ "Drop packet: originator packet from myself (via neighbor)\n");
batadv_orig_node_free_ref(orig_neigh_node);
return;
}
if (is_my_oldorig) {
- bat_dbg(DBG_BATMAN, bat_priv,
- "Drop packet: ignoring all rebroadcast echos (sender: %pM)\n",
- ethhdr->h_source);
+ batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
+ "Drop packet: ignoring all rebroadcast echos (sender: %pM)\n",
+ ethhdr->h_source);
return;
}
- if (batman_ogm_packet->flags & NOT_BEST_NEXT_HOP) {
- bat_dbg(DBG_BATMAN, bat_priv,
- "Drop packet: ignoring all packets not forwarded from the best next hop (sender: %pM)\n",
- ethhdr->h_source);
+ if (batadv_ogm_packet->flags & BATADV_NOT_BEST_NEXT_HOP) {
+ batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
+ "Drop packet: ignoring all packets not forwarded from the best next hop (sender: %pM)\n",
+ ethhdr->h_source);
return;
}
- orig_node = batadv_get_orig_node(bat_priv, batman_ogm_packet->orig);
+ orig_node = batadv_get_orig_node(bat_priv, batadv_ogm_packet->orig);
if (!orig_node)
return;
- is_duplicate = bat_iv_ogm_update_seqnos(ethhdr, batman_ogm_packet,
- if_incoming);
+ is_duplicate = batadv_iv_ogm_update_seqnos(ethhdr, batadv_ogm_packet,
+ if_incoming);
if (is_duplicate == -1) {
- bat_dbg(DBG_BATMAN, bat_priv,
- "Drop packet: packet within seqno protection time (sender: %pM)\n",
- ethhdr->h_source);
+ batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
+ "Drop packet: packet within seqno protection time (sender: %pM)\n",
+ ethhdr->h_source);
goto out;
}
- if (batman_ogm_packet->tq == 0) {
- bat_dbg(DBG_BATMAN, bat_priv,
- "Drop packet: originator packet with tq equal 0\n");
+ if (batadv_ogm_packet->tq == 0) {
+ batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
+ "Drop packet: originator packet with tq equal 0\n");
goto out;
}
router_router = batadv_orig_node_get_router(router->orig_node);
if ((router && router->tq_avg != 0) &&
- (compare_eth(router->addr, ethhdr->h_source)))
+ (batadv_compare_eth(router->addr, ethhdr->h_source)))
is_from_best_next_hop = true;
+ prev_sender = batadv_ogm_packet->prev_sender;
/* avoid temporary routing loops */
if (router && router_router &&
- (compare_eth(router->addr, batman_ogm_packet->prev_sender)) &&
- !(compare_eth(batman_ogm_packet->orig,
- batman_ogm_packet->prev_sender)) &&
- (compare_eth(router->addr, router_router->addr))) {
- bat_dbg(DBG_BATMAN, bat_priv,
- "Drop packet: ignoring all rebroadcast packets that may make me loop (sender: %pM)\n",
- ethhdr->h_source);
+ (batadv_compare_eth(router->addr, prev_sender)) &&
+ !(batadv_compare_eth(batadv_ogm_packet->orig, prev_sender)) &&
+ (batadv_compare_eth(router->addr, router_router->addr))) {
+ batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
+ "Drop packet: ignoring all rebroadcast packets that may make me loop (sender: %pM)\n",
+ ethhdr->h_source);
goto out;
}
* don't route towards it
*/
if (!is_single_hop_neigh && (!orig_neigh_router)) {
- bat_dbg(DBG_BATMAN, bat_priv,
- "Drop packet: OGM via unknown neighbor!\n");
+ batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
+ "Drop packet: OGM via unknown neighbor!\n");
goto out_neigh;
}
- is_bidirectional = bat_iv_ogm_calc_tq(orig_node, orig_neigh_node,
- batman_ogm_packet, if_incoming);
+ is_bidirect = batadv_iv_ogm_calc_tq(orig_node, orig_neigh_node,
+ batadv_ogm_packet, if_incoming);
batadv_bonding_save_primary(orig_node, orig_neigh_node,
- batman_ogm_packet);
+ batadv_ogm_packet);
/* update ranking if it is not a duplicate or has the same
* seqno and similar ttl as the non-duplicate
*/
- if (is_bidirectional &&
- (!is_duplicate ||
- ((orig_node->last_real_seqno == ntohl(batman_ogm_packet->seqno)) &&
- (orig_node->last_ttl - 3 <= batman_ogm_packet->header.ttl))))
- bat_iv_ogm_orig_update(bat_priv, orig_node, ethhdr,
- batman_ogm_packet, if_incoming,
- tt_buff, is_duplicate);
+ sameseq = orig_node->last_real_seqno == ntohl(batadv_ogm_packet->seqno);
+ simlar_ttl = orig_node->last_ttl - 3 <= batadv_ogm_packet->header.ttl;
+ if (is_bidirect && (!is_duplicate || (sameseq && simlar_ttl)))
+ batadv_iv_ogm_orig_update(bat_priv, orig_node, ethhdr,
+ batadv_ogm_packet, if_incoming,
+ tt_buff, is_duplicate);
/* is single hop (direct) neighbor */
if (is_single_hop_neigh) {
/* mark direct link on incoming interface */
- bat_iv_ogm_forward(orig_node, ethhdr, batman_ogm_packet,
- is_single_hop_neigh, is_from_best_next_hop,
- if_incoming);
+ batadv_iv_ogm_forward(orig_node, ethhdr, batadv_ogm_packet,
+ is_single_hop_neigh,
+ is_from_best_next_hop, if_incoming);
- bat_dbg(DBG_BATMAN, bat_priv,
- "Forwarding packet: rebroadcast neighbor packet with direct link flag\n");
+ batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
+ "Forwarding packet: rebroadcast neighbor packet with direct link flag\n");
goto out_neigh;
}
/* multihop originator */
- if (!is_bidirectional) {
- bat_dbg(DBG_BATMAN, bat_priv,
- "Drop packet: not received via bidirectional link\n");
+ if (!is_bidirect) {
+ batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
+ "Drop packet: not received via bidirectional link\n");
goto out_neigh;
}
if (is_duplicate) {
- bat_dbg(DBG_BATMAN, bat_priv,
- "Drop packet: duplicate packet received\n");
+ batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
+ "Drop packet: duplicate packet received\n");
goto out_neigh;
}
- bat_dbg(DBG_BATMAN, bat_priv,
- "Forwarding packet: rebroadcast originator packet\n");
- bat_iv_ogm_forward(orig_node, ethhdr, batman_ogm_packet,
- is_single_hop_neigh, is_from_best_next_hop,
- if_incoming);
+ batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
+ "Forwarding packet: rebroadcast originator packet\n");
+ batadv_iv_ogm_forward(orig_node, ethhdr, batadv_ogm_packet,
+ is_single_hop_neigh, is_from_best_next_hop,
+ if_incoming);
out_neigh:
if ((orig_neigh_node) && (!is_single_hop_neigh))
batadv_orig_node_free_ref(orig_node);
}
-static int bat_iv_ogm_receive(struct sk_buff *skb,
- struct hard_iface *if_incoming)
+static int batadv_iv_ogm_receive(struct sk_buff *skb,
+ struct batadv_hard_iface *if_incoming)
{
- struct bat_priv *bat_priv = netdev_priv(if_incoming->soft_iface);
- struct batman_ogm_packet *batman_ogm_packet;
+ struct batadv_priv *bat_priv = netdev_priv(if_incoming->soft_iface);
+ struct batadv_ogm_packet *batadv_ogm_packet;
struct ethhdr *ethhdr;
int buff_pos = 0, packet_len;
unsigned char *tt_buff, *packet_buff;
bool ret;
- ret = batadv_check_management_packet(skb, if_incoming, BATMAN_OGM_HLEN);
+ ret = batadv_check_management_packet(skb, if_incoming, BATADV_OGM_HLEN);
if (!ret)
return NET_RX_DROP;
/* did we receive a B.A.T.M.A.N. IV OGM packet on an interface
* that does not have B.A.T.M.A.N. IV enabled ?
*/
- if (bat_priv->bat_algo_ops->bat_ogm_emit != bat_iv_ogm_emit)
+ if (bat_priv->bat_algo_ops->bat_ogm_emit != batadv_iv_ogm_emit)
return NET_RX_DROP;
- batadv_inc_counter(bat_priv, BAT_CNT_MGMT_RX);
- batadv_add_counter(bat_priv, BAT_CNT_MGMT_RX_BYTES,
+ batadv_inc_counter(bat_priv, BATADV_CNT_MGMT_RX);
+ batadv_add_counter(bat_priv, BATADV_CNT_MGMT_RX_BYTES,
skb->len + ETH_HLEN);
packet_len = skb_headlen(skb);
ethhdr = (struct ethhdr *)skb_mac_header(skb);
packet_buff = skb->data;
- batman_ogm_packet = (struct batman_ogm_packet *)packet_buff;
+ batadv_ogm_packet = (struct batadv_ogm_packet *)packet_buff;
/* unpack the aggregated packets and process them one by one */
do {
- tt_buff = packet_buff + buff_pos + BATMAN_OGM_HLEN;
+ tt_buff = packet_buff + buff_pos + BATADV_OGM_HLEN;
- bat_iv_ogm_process(ethhdr, batman_ogm_packet,
- tt_buff, if_incoming);
+ batadv_iv_ogm_process(ethhdr, batadv_ogm_packet, tt_buff,
+ if_incoming);
- buff_pos += BATMAN_OGM_HLEN;
- buff_pos += batadv_tt_len(batman_ogm_packet->tt_num_changes);
+ buff_pos += BATADV_OGM_HLEN;
+ buff_pos += batadv_tt_len(batadv_ogm_packet->tt_num_changes);
- batman_ogm_packet = (struct batman_ogm_packet *)
+ batadv_ogm_packet = (struct batadv_ogm_packet *)
(packet_buff + buff_pos);
- } while (bat_iv_ogm_aggr_packet(buff_pos, packet_len,
- batman_ogm_packet->tt_num_changes));
+ } while (batadv_iv_ogm_aggr_packet(buff_pos, packet_len,
+ batadv_ogm_packet->tt_num_changes));
kfree_skb(skb);
return NET_RX_SUCCESS;
}
-static struct bat_algo_ops batman_iv __read_mostly = {
+static struct batadv_algo_ops batadv_batman_iv __read_mostly = {
.name = "BATMAN_IV",
- .bat_iface_enable = bat_iv_ogm_iface_enable,
- .bat_iface_disable = bat_iv_ogm_iface_disable,
- .bat_iface_update_mac = bat_iv_ogm_iface_update_mac,
- .bat_primary_iface_set = bat_iv_ogm_primary_iface_set,
- .bat_ogm_schedule = bat_iv_ogm_schedule,
- .bat_ogm_emit = bat_iv_ogm_emit,
+ .bat_iface_enable = batadv_iv_ogm_iface_enable,
+ .bat_iface_disable = batadv_iv_ogm_iface_disable,
+ .bat_iface_update_mac = batadv_iv_ogm_iface_update_mac,
+ .bat_primary_iface_set = batadv_iv_ogm_primary_iface_set,
+ .bat_ogm_schedule = batadv_iv_ogm_schedule,
+ .bat_ogm_emit = batadv_iv_ogm_emit,
};
int __init batadv_iv_init(void)
int ret;
/* batman originator packet */
- ret = batadv_recv_handler_register(BAT_IV_OGM, bat_iv_ogm_receive);
+ ret = batadv_recv_handler_register(BATADV_IV_OGM,
+ batadv_iv_ogm_receive);
if (ret < 0)
goto out;
- ret = batadv_algo_register(&batman_iv);
+ ret = batadv_algo_register(&batadv_batman_iv);
if (ret < 0)
goto handler_unregister;
goto out;
handler_unregister:
- batadv_recv_handler_unregister(BAT_IV_OGM);
+ batadv_recv_handler_unregister(BATADV_IV_OGM);
out:
return ret;
}
projects / karo-tx-linux.git / blobdiff