}
EXPORT_SYMBOL(ieee80211_get_mesh_hdrlen);
+static bool ieee80211_get_8023_tunnel_proto(const void *hdr, __be16 *proto)
+{
+ const __be16 *hdr_proto = hdr + ETH_ALEN;
+
+ if (!(ether_addr_equal(hdr, rfc1042_header) &&
+ *hdr_proto != htons(ETH_P_AARP) &&
+ *hdr_proto != htons(ETH_P_IPX)) &&
+ !ether_addr_equal(hdr, bridge_tunnel_header))
+ return false;
+
+ *proto = *hdr_proto;
+
+ return true;
+}
+
int ieee80211_data_to_8023_exthdr(struct sk_buff *skb, struct ethhdr *ehdr,
const u8 *addr, enum nl80211_iftype iftype,
u8 data_offset, bool is_amsdu)
if (likely(!is_amsdu &&
skb_copy_bits(skb, hdrlen, &payload, sizeof(payload)) == 0 &&
- ((ether_addr_equal(payload.hdr, rfc1042_header) &&
- payload.proto != htons(ETH_P_AARP) &&
- payload.proto != htons(ETH_P_IPX)) ||
- ether_addr_equal(payload.hdr, bridge_tunnel_header)))) {
- /* remove RFC1042 or Bridge-Tunnel encapsulation and
- * replace EtherType */
+ ieee80211_get_8023_tunnel_proto(&payload, &tmp.h_proto))) {
+ /* remove RFC1042 or Bridge-Tunnel encapsulation */
hdrlen += ETH_ALEN + 2;
- tmp.h_proto = payload.proto;
skb_postpull_rcsum(skb, &payload, ETH_ALEN + 2);
} else {
tmp.h_proto = htons(skb->len - hdrlen);
{
unsigned int hlen = ALIGN(extra_headroom, 4);
struct sk_buff *frame = NULL;
- u16 ethertype;
- u8 *payload;
int offset = 0, remaining;
struct ethhdr eth;
bool reuse_frag = skb->head_frag && !skb_has_frag_list(skb);
frame->dev = skb->dev;
frame->priority = skb->priority;
- payload = frame->data;
- ethertype = (payload[6] << 8) | payload[7];
- if (likely((ether_addr_equal(payload, rfc1042_header) &&
- ethertype != ETH_P_AARP && ethertype != ETH_P_IPX) ||
- ether_addr_equal(payload, bridge_tunnel_header))) {
- eth.h_proto = htons(ethertype);
+ if (likely(ieee80211_get_8023_tunnel_proto(frame->data, ð.h_proto)))
skb_pull(frame, ETH_ALEN + 2);
- }
memcpy(skb_push(frame, sizeof(eth)), ð, sizeof(eth));
__skb_queue_tail(list, frame);