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Diffstat (limited to 'net/batman-adv/network-coding.c')
-rw-r--r--net/batman-adv/network-coding.c55
1 files changed, 43 insertions, 12 deletions
diff --git a/net/batman-adv/network-coding.c b/net/batman-adv/network-coding.c
index 511d7e1eea38..f1b604d88dc3 100644
--- a/net/batman-adv/network-coding.c
+++ b/net/batman-adv/network-coding.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 2012-2013 B.A.T.M.A.N. contributors:
+/* Copyright (C) 2012-2014 B.A.T.M.A.N. contributors:
*
* Martin Hundebøll, Jeppe Ledet-Pedersen
*
@@ -12,9 +12,7 @@
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
- * 02110-1301, USA
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include <linux/debugfs.h>
@@ -720,9 +718,21 @@ static bool batadv_can_nc_with_orig(struct batadv_priv *bat_priv,
struct batadv_orig_node *orig_node,
struct batadv_ogm_packet *ogm_packet)
{
- if (orig_node->last_real_seqno != ntohl(ogm_packet->seqno))
+ struct batadv_orig_ifinfo *orig_ifinfo;
+ uint32_t last_real_seqno;
+ uint8_t last_ttl;
+
+ orig_ifinfo = batadv_orig_ifinfo_get(orig_node, BATADV_IF_DEFAULT);
+ if (!orig_ifinfo)
return false;
- if (orig_node->last_ttl != ogm_packet->ttl + 1)
+
+ last_ttl = orig_ifinfo->last_ttl;
+ last_real_seqno = orig_ifinfo->last_real_seqno;
+ batadv_orig_ifinfo_free_ref(orig_ifinfo);
+
+ if (last_real_seqno != ntohl(ogm_packet->seqno))
+ return false;
+ if (last_ttl != ogm_packet->ttl + 1)
return false;
if (!batadv_compare_eth(ogm_packet->orig, ogm_packet->prev_sender))
return false;
@@ -1010,6 +1020,8 @@ static bool batadv_nc_code_packets(struct batadv_priv *bat_priv,
struct batadv_coded_packet *coded_packet;
struct batadv_neigh_node *neigh_tmp, *router_neigh;
struct batadv_neigh_node *router_coding = NULL;
+ struct batadv_neigh_ifinfo *router_neigh_ifinfo = NULL;
+ struct batadv_neigh_ifinfo *router_coding_ifinfo = NULL;
uint8_t *first_source, *first_dest, *second_source, *second_dest;
__be32 packet_id1, packet_id2;
size_t count;
@@ -1019,19 +1031,34 @@ static bool batadv_nc_code_packets(struct batadv_priv *bat_priv,
int coded_size = sizeof(*coded_packet);
int header_add = coded_size - unicast_size;
- router_neigh = batadv_orig_node_get_router(neigh_node->orig_node);
+ /* TODO: do we need to consider the outgoing interface for
+ * coded packets?
+ */
+ router_neigh = batadv_orig_router_get(neigh_node->orig_node,
+ BATADV_IF_DEFAULT);
if (!router_neigh)
goto out;
+ router_neigh_ifinfo = batadv_neigh_ifinfo_get(router_neigh,
+ BATADV_IF_DEFAULT);
+ if (!router_neigh_ifinfo)
+ goto out;
+
neigh_tmp = nc_packet->neigh_node;
- router_coding = batadv_orig_node_get_router(neigh_tmp->orig_node);
+ router_coding = batadv_orig_router_get(neigh_tmp->orig_node,
+ BATADV_IF_DEFAULT);
if (!router_coding)
goto out;
- tq_tmp = batadv_nc_random_weight_tq(router_neigh->bat_iv.tq_avg);
- tq_weighted_neigh = tq_tmp;
- tq_tmp = batadv_nc_random_weight_tq(router_coding->bat_iv.tq_avg);
- tq_weighted_coding = tq_tmp;
+ router_coding_ifinfo = batadv_neigh_ifinfo_get(router_coding,
+ BATADV_IF_DEFAULT);
+ if (!router_coding_ifinfo)
+ goto out;
+
+ tq_tmp = router_neigh_ifinfo->bat_iv.tq_avg;
+ tq_weighted_neigh = batadv_nc_random_weight_tq(tq_tmp);
+ tq_tmp = router_coding_ifinfo->bat_iv.tq_avg;
+ tq_weighted_coding = batadv_nc_random_weight_tq(tq_tmp);
/* Select one destination for the MAC-header dst-field based on
* weighted TQ-values.
@@ -1155,6 +1182,10 @@ out:
batadv_neigh_node_free_ref(router_neigh);
if (router_coding)
batadv_neigh_node_free_ref(router_coding);
+ if (router_neigh_ifinfo)
+ batadv_neigh_ifinfo_free_ref(router_neigh_ifinfo);
+ if (router_coding_ifinfo)
+ batadv_neigh_ifinfo_free_ref(router_coding_ifinfo);
return res;
}