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path: root/net/batman-adv/bat_iv_ogm.c
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Diffstat (limited to 'net/batman-adv/bat_iv_ogm.c')
-rw-r--r--net/batman-adv/bat_iv_ogm.c86
1 files changed, 52 insertions, 34 deletions
diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
index 469daabd90c7..b02b75dae3a8 100644
--- a/net/batman-adv/bat_iv_ogm.c
+++ b/net/batman-adv/bat_iv_ogm.c
@@ -166,13 +166,15 @@ static void batadv_iv_ogm_send_to_if(struct batadv_forw_packet *forw_packet,
int16_t buff_pos;
struct batadv_ogm_packet *batadv_ogm_packet;
struct sk_buff *skb;
+ uint8_t *packet_pos;
if (hard_iface->if_status != BATADV_IF_ACTIVE)
return;
packet_num = 0;
buff_pos = 0;
- batadv_ogm_packet = (struct batadv_ogm_packet *)forw_packet->skb->data;
+ packet_pos = forw_packet->skb->data;
+ batadv_ogm_packet = (struct batadv_ogm_packet *)packet_pos;
/* adjust all flags and log packets */
while (batadv_iv_ogm_aggr_packet(buff_pos, forw_packet->packet_len,
@@ -181,15 +183,17 @@ static void batadv_iv_ogm_send_to_if(struct batadv_forw_packet *forw_packet,
/* 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))
+ if (forw_packet->direct_link_flags & BIT(packet_num) &&
+ forw_packet->if_incoming == hard_iface)
batadv_ogm_packet->flags |= BATADV_DIRECTLINK;
else
batadv_ogm_packet->flags &= ~BATADV_DIRECTLINK;
- fwd_str = (packet_num > 0 ? "Forwarding" : (forw_packet->own ?
- "Sending own" :
- "Forwarding"));
+ if (packet_num > 0 || !forw_packet->own)
+ fwd_str = "Forwarding";
+ else
+ fwd_str = "Sending own";
+
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 " : ""),
@@ -204,8 +208,8 @@ static void batadv_iv_ogm_send_to_if(struct batadv_forw_packet *forw_packet,
buff_pos += BATADV_OGM_HLEN;
buff_pos += batadv_tt_len(batadv_ogm_packet->tt_num_changes);
packet_num++;
- batadv_ogm_packet = (struct batadv_ogm_packet *)
- (forw_packet->skb->data + buff_pos);
+ packet_pos = forw_packet->skb->data + buff_pos;
+ batadv_ogm_packet = (struct batadv_ogm_packet *)packet_pos;
}
/* create clone because function is called more than once */
@@ -227,9 +231,10 @@ static void batadv_iv_ogm_emit(struct batadv_forw_packet *forw_packet)
struct batadv_hard_iface *primary_if = NULL;
struct batadv_ogm_packet *batadv_ogm_packet;
unsigned char directlink;
+ uint8_t *packet_pos;
- batadv_ogm_packet = (struct batadv_ogm_packet *)
- (forw_packet->skb->data);
+ packet_pos = forw_packet->skb->data;
+ batadv_ogm_packet = (struct batadv_ogm_packet *)packet_pos;
directlink = (batadv_ogm_packet->flags & BATADV_DIRECTLINK ? 1 : 0);
if (!forw_packet->if_incoming) {
@@ -454,6 +459,7 @@ static void batadv_iv_ogm_aggregate(struct batadv_forw_packet *forw_packet_aggr,
int packet_len, bool direct_link)
{
unsigned char *skb_buff;
+ unsigned long new_direct_link_flag;
skb_buff = skb_put(forw_packet_aggr->skb, packet_len);
memcpy(skb_buff, packet_buff, packet_len);
@@ -461,9 +467,10 @@ static void batadv_iv_ogm_aggregate(struct batadv_forw_packet *forw_packet_aggr,
forw_packet_aggr->num_packets++;
/* save packet direct link flag status */
- if (direct_link)
- forw_packet_aggr->direct_link_flags |=
- (1 << forw_packet_aggr->num_packets);
+ if (direct_link) {
+ new_direct_link_flag = BIT(forw_packet_aggr->num_packets);
+ forw_packet_aggr->direct_link_flags |= new_direct_link_flag;
+ }
}
static void batadv_iv_ogm_queue_add(struct batadv_priv *bat_priv,
@@ -586,6 +593,8 @@ static void batadv_iv_ogm_schedule(struct batadv_hard_iface *hard_iface)
struct batadv_ogm_packet *batadv_ogm_packet;
struct batadv_hard_iface *primary_if;
int vis_server, tt_num_changes = 0;
+ uint32_t seqno;
+ uint8_t bandwidth;
vis_server = atomic_read(&bat_priv->vis_mode);
primary_if = batadv_primary_if_get_selected(bat_priv);
@@ -599,12 +608,12 @@ static void batadv_iv_ogm_schedule(struct batadv_hard_iface *hard_iface)
batadv_ogm_packet = (struct batadv_ogm_packet *)hard_iface->packet_buff;
/* change sequence number to network order */
- batadv_ogm_packet->seqno =
- htonl((uint32_t)atomic_read(&hard_iface->seqno));
+ seqno = (uint32_t)atomic_read(&hard_iface->seqno);
+ batadv_ogm_packet->seqno = htonl(seqno);
atomic_inc(&hard_iface->seqno);
- batadv_ogm_packet->ttvn = atomic_read(&bat_priv->ttvn);
- batadv_ogm_packet->tt_crc = htons(bat_priv->tt_crc);
+ batadv_ogm_packet->ttvn = atomic_read(&bat_priv->tt.vn);
+ batadv_ogm_packet->tt_crc = htons(bat_priv->tt.local_crc);
if (tt_num_changes >= 0)
batadv_ogm_packet->tt_num_changes = tt_num_changes;
@@ -613,12 +622,13 @@ static void batadv_iv_ogm_schedule(struct batadv_hard_iface *hard_iface)
else
batadv_ogm_packet->flags &= ~BATADV_VIS_SERVER;
- if ((hard_iface == primary_if) &&
- (atomic_read(&bat_priv->gw_mode) == BATADV_GW_MODE_SERVER))
- batadv_ogm_packet->gw_flags =
- (uint8_t)atomic_read(&bat_priv->gw_bandwidth);
- else
+ if (hard_iface == primary_if &&
+ atomic_read(&bat_priv->gw_mode) == BATADV_GW_MODE_SERVER) {
+ bandwidth = (uint8_t)atomic_read(&bat_priv->gw_bandwidth);
+ batadv_ogm_packet->gw_flags = bandwidth;
+ } else {
batadv_ogm_packet->gw_flags = BATADV_NO_FLAGS;
+ }
batadv_slide_own_bcast_window(hard_iface);
batadv_iv_ogm_queue_add(bat_priv, hard_iface->packet_buff,
@@ -645,6 +655,7 @@ batadv_iv_ogm_orig_update(struct batadv_priv *bat_priv,
int if_num;
uint8_t sum_orig, sum_neigh;
uint8_t *neigh_addr;
+ uint8_t tq_avg;
batadv_dbg(BATADV_DBG_BATMAN, bat_priv,
"update_originator(): Searching and updating originator entry of received packet\n");
@@ -668,8 +679,8 @@ batadv_iv_ogm_orig_update(struct batadv_priv *bat_priv,
spin_lock_bh(&tmp_neigh_node->lq_update_lock);
batadv_ring_buffer_set(tmp_neigh_node->tq_recv,
&tmp_neigh_node->tq_index, 0);
- tmp_neigh_node->tq_avg =
- batadv_ring_buffer_avg(tmp_neigh_node->tq_recv);
+ tq_avg = batadv_ring_buffer_avg(tmp_neigh_node->tq_recv);
+ tmp_neigh_node->tq_avg = tq_avg;
spin_unlock_bh(&tmp_neigh_node->lq_update_lock);
}
@@ -836,8 +847,10 @@ static int batadv_iv_ogm_calc_tq(struct batadv_orig_node *orig_node,
spin_unlock_bh(&orig_node->ogm_cnt_lock);
/* pay attention to not get a value bigger than 100 % */
- total_count = (orig_eq_count > neigh_rq_count ?
- neigh_rq_count : orig_eq_count);
+ if (orig_eq_count > neigh_rq_count)
+ total_count = neigh_rq_count;
+ else
+ total_count = orig_eq_count;
/* 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
@@ -911,6 +924,7 @@ batadv_iv_ogm_update_seqnos(const struct ethhdr *ethhdr,
int set_mark, ret = -1;
uint32_t seqno = ntohl(batadv_ogm_packet->seqno);
uint8_t *neigh_addr;
+ uint8_t packet_count;
orig_node = batadv_get_orig_node(bat_priv, batadv_ogm_packet->orig);
if (!orig_node)
@@ -945,9 +959,9 @@ batadv_iv_ogm_update_seqnos(const struct ethhdr *ethhdr,
tmp_neigh_node->real_bits,
seq_diff, set_mark);
- tmp_neigh_node->real_packet_count =
- bitmap_weight(tmp_neigh_node->real_bits,
- BATADV_TQ_LOCAL_WINDOW_SIZE);
+ packet_count = bitmap_weight(tmp_neigh_node->real_bits,
+ BATADV_TQ_LOCAL_WINDOW_SIZE);
+ tmp_neigh_node->real_packet_count = packet_count;
}
rcu_read_unlock();
@@ -1164,9 +1178,12 @@ static void batadv_iv_ogm_process(const struct ethhdr *ethhdr,
/* if sender is a direct neighbor the sender mac equals
* originator mac
*/
- orig_neigh_node = (is_single_hop_neigh ?
- orig_node :
- batadv_get_orig_node(bat_priv, ethhdr->h_source));
+ if (is_single_hop_neigh)
+ orig_neigh_node = orig_node;
+ else
+ orig_neigh_node = batadv_get_orig_node(bat_priv,
+ ethhdr->h_source);
+
if (!orig_neigh_node)
goto out;
@@ -1252,6 +1269,7 @@ static int batadv_iv_ogm_receive(struct sk_buff *skb,
int buff_pos = 0, packet_len;
unsigned char *tt_buff, *packet_buff;
bool ret;
+ uint8_t *packet_pos;
ret = batadv_check_management_packet(skb, if_incoming, BATADV_OGM_HLEN);
if (!ret)
@@ -1282,8 +1300,8 @@ static int batadv_iv_ogm_receive(struct sk_buff *skb,
buff_pos += BATADV_OGM_HLEN;
buff_pos += batadv_tt_len(batadv_ogm_packet->tt_num_changes);
- batadv_ogm_packet = (struct batadv_ogm_packet *)
- (packet_buff + buff_pos);
+ packet_pos = packet_buff + buff_pos;
+ batadv_ogm_packet = (struct batadv_ogm_packet *)packet_pos;
} while (batadv_iv_ogm_aggr_packet(buff_pos, packet_len,
batadv_ogm_packet->tt_num_changes));
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-01 18:31:32 +0300