batman-adv: set skb priority according to content
The skb priority field may help the wireless driver to choose the right
queue (e.g. WMM queues). This should be set in batman-adv, as this
information is only available here.
This patch adds support for IPv4/IPv6 DS fields and VLAN PCP. Note that
only VLAN PCP is used if a VLAN header is present. Also initially set
TC_PRIO_CONTROL only for self-generated packets, and keep the priority
set by higher layers.
Signed-off-by: Simon Wunderlich <simon@open-mesh.com>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
diff --git a/net/batman-adv/routing.c b/net/batman-adv/routing.c
index 2f0bd3f..0439395 100644
--- a/net/batman-adv/routing.c
+++ b/net/batman-adv/routing.c
@@ -775,7 +775,7 @@
struct batadv_neigh_node *neigh_node = NULL;
struct batadv_unicast_packet *unicast_packet;
struct ethhdr *ethhdr = eth_hdr(skb);
- int res, ret = NET_RX_DROP;
+ int res, hdr_len, ret = NET_RX_DROP;
struct sk_buff *new_skb;
unicast_packet = (struct batadv_unicast_packet *)skb->data;
@@ -835,6 +835,22 @@
/* decrement ttl */
unicast_packet->header.ttl--;
+ switch (unicast_packet->header.packet_type) {
+ case BATADV_UNICAST_4ADDR:
+ hdr_len = sizeof(struct batadv_unicast_4addr_packet);
+ break;
+ case BATADV_UNICAST:
+ hdr_len = sizeof(struct batadv_unicast_packet);
+ break;
+ default:
+ /* other packet types not supported - yet */
+ hdr_len = -1;
+ break;
+ }
+
+ if (hdr_len > 0)
+ batadv_skb_set_priority(skb, hdr_len);
+
res = batadv_send_skb_to_orig(skb, orig_node, recv_if);
/* translate transmit result into receive result */
@@ -1193,6 +1209,8 @@
if (batadv_bla_check_bcast_duplist(bat_priv, skb))
goto out;
+ batadv_skb_set_priority(skb, sizeof(struct batadv_bcast_packet));
+
/* rebroadcast packet */
batadv_add_bcast_packet_to_list(bat_priv, skb, 1);