wprobe: the bpf code expects direct-access fields to be in big endian, not cpu endian

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@16733 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/package/wprobe/src/kernel/wprobe-core.c b/package/wprobe/src/kernel/wprobe-core.c
index f9dd282..ed22457 100644 (file)
--- a/package/wprobe/src/kernel/wprobe-core.c
+++ b/package/wprobe/src/kernel/wprobe-core.c
@@ -203,6 +203,7 @@ wprobe_get_dev(struct nlattr *attr)
 int
 wprobe_add_frame(struct wprobe_iface *dev, const struct wprobe_wlan_hdr *hdr, void *data, int len)
 {
+       struct wprobe_wlan_hdr *new_hdr;
        struct wprobe_filter *f;
        struct sk_buff *skb;
        unsigned long flags;
@@ -221,7 +222,10 @@ wprobe_add_frame(struct wprobe_iface *dev, const struct wprobe_wlan_hdr *hdr, vo
        if (len + skb->len > WPROBE_MAX_FRAME_SIZE)
                len = WPROBE_MAX_FRAME_SIZE - skb->len;
 
-       memcpy(skb_put(skb, f->hdrlen), hdr, sizeof(struct wprobe_wlan_hdr));
+       new_hdr = (struct wprobe_wlan_hdr *) skb_put(skb, f->hdrlen);
+       memcpy(new_hdr, hdr, sizeof(struct wprobe_wlan_hdr));
+       new_hdr->len = cpu_to_be16(new_hdr->len);
+
        memcpy(skb_put(skb, len), data, len);
 
        for(i = 0; i < f->n_groups; i++) {