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-rw-r--r--net/wireless/util.c34
1 files changed, 15 insertions, 19 deletions
diff --git a/net/wireless/util.c b/net/wireless/util.c
index 8edce22d1b93..5ea12afc7706 100644
--- a/net/wireless/util.c
+++ b/net/wireless/util.c
@@ -420,8 +420,8 @@ unsigned int ieee80211_get_mesh_hdrlen(struct ieee80211s_hdr *meshhdr)
}
EXPORT_SYMBOL(ieee80211_get_mesh_hdrlen);
-static int __ieee80211_data_to_8023(struct sk_buff *skb, struct ethhdr *ehdr,
- const u8 *addr, enum nl80211_iftype iftype)
+int ieee80211_data_to_8023_exthdr(struct sk_buff *skb, struct ethhdr *ehdr,
+ const u8 *addr, enum nl80211_iftype iftype)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
struct {
@@ -525,13 +525,7 @@ static int __ieee80211_data_to_8023(struct sk_buff *skb, struct ethhdr *ehdr,
return 0;
}
-
-int ieee80211_data_to_8023(struct sk_buff *skb, const u8 *addr,
- enum nl80211_iftype iftype)
-{
- return __ieee80211_data_to_8023(skb, NULL, addr, iftype);
-}
-EXPORT_SYMBOL(ieee80211_data_to_8023);
+EXPORT_SYMBOL(ieee80211_data_to_8023_exthdr);
int ieee80211_data_from_8023(struct sk_buff *skb, const u8 *addr,
enum nl80211_iftype iftype,
@@ -746,24 +740,18 @@ __ieee80211_amsdu_copy(struct sk_buff *skb, unsigned int hlen,
void ieee80211_amsdu_to_8023s(struct sk_buff *skb, struct sk_buff_head *list,
const u8 *addr, enum nl80211_iftype iftype,
const unsigned int extra_headroom,
- bool has_80211_header)
+ const u8 *check_da, const u8 *check_sa)
{
unsigned int hlen = ALIGN(extra_headroom, 4);
struct sk_buff *frame = NULL;
u16 ethertype;
u8 *payload;
- int offset = 0, remaining, err;
+ int offset = 0, remaining;
struct ethhdr eth;
bool reuse_frag = skb->head_frag && !skb_has_frag_list(skb);
bool reuse_skb = false;
bool last = false;
- if (has_80211_header) {
- err = __ieee80211_data_to_8023(skb, &eth, addr, iftype);
- if (err)
- goto out;
- }
-
while (!last) {
unsigned int subframe_len;
int len;
@@ -780,8 +768,17 @@ void ieee80211_amsdu_to_8023s(struct sk_buff *skb, struct sk_buff_head *list,
goto purge;
offset += sizeof(struct ethhdr);
- /* reuse skb for the last subframe */
last = remaining <= subframe_len + padding;
+
+ /* FIXME: should we really accept multicast DA? */
+ if ((check_da && !is_multicast_ether_addr(eth.h_dest) &&
+ !ether_addr_equal(check_da, eth.h_dest)) ||
+ (check_sa && !ether_addr_equal(check_sa, eth.h_source))) {
+ offset += len + padding;
+ continue;
+ }
+
+ /* reuse skb for the last subframe */
if (!skb_is_nonlinear(skb) && !reuse_frag && last) {
skb_pull(skb, offset);
frame = skb;
@@ -819,7 +816,6 @@ void ieee80211_amsdu_to_8023s(struct sk_buff *skb, struct sk_buff_head *list,
purge:
__skb_queue_purge(list);
- out:
dev_kfree_skb(skb);
}
EXPORT_SYMBOL(ieee80211_amsdu_to_8023s);