mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-23 23:42:43 +00:00
d033c3ba87
Add kernel tags to the patches that got accepted upstream. Signed-off-by: Nick Hainke <vincent@systemli.org>
77 lines
2.6 KiB
Diff
77 lines
2.6 KiB
Diff
From: Felix Fietkau <nbd@nbd.name>
|
|
Date: Fri, 2 Dec 2022 13:54:15 +0100
|
|
Subject: [PATCH] wifi: cfg80211: factor out bridge tunnel / RFC1042 header
|
|
check
|
|
|
|
The same check is done in multiple places, unify it.
|
|
|
|
Signed-off-by: Felix Fietkau <nbd@nbd.name>
|
|
---
|
|
|
|
--- a/net/wireless/util.c
|
|
+++ b/net/wireless/util.c
|
|
@@ -542,6 +542,21 @@ unsigned int ieee80211_get_mesh_hdrlen(s
|
|
}
|
|
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)
|
|
@@ -633,14 +648,9 @@ int ieee80211_data_to_8023_exthdr(struct
|
|
|
|
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);
|
|
@@ -756,8 +766,6 @@ void ieee80211_amsdu_to_8023s(struct sk_
|
|
{
|
|
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);
|
|
@@ -811,14 +819,8 @@ void ieee80211_amsdu_to_8023s(struct sk_
|
|
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);
|