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| author |  Ivan Safonov <insafonov@gmail.com>
| 2017-05-02 09:01:41 +0300 |
|---|---|---|
| committer |  Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| 2017-05-15 07:41:59 +0200 |
| commit | 02b19b4c4920cf7976828216b36f0f2317aa20be (patch) | |
| tree | af3c561d47051a807ab9fd6fbe8d9e985a735f53 /drivers | |
| parent | staging:r8188eu: use different mon_recv_decrypted() inside rtl88eu_mon_recv_h... (diff) | |
| download | linux-02b19b4c4920.tar.gz linux-02b19b4c4920.tar.bz2 linux-02b19b4c4920.zip | |
staging:r8188eu: inline unprotect_frame() in mon_recv_decrypted_recv()
It is useful to remove IV/ICV from rtl88eu_mon_recv_hook().
Also unprotect_frame() will be very short without skb_(pull|trim).
Signed-off-by: Ivan Safonov <insafonov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/staging/rtl8188eu/os_dep/mon.c | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/drivers/staging/rtl8188eu/os_dep/mon.c b/drivers/staging/rtl8188eu/os_dep/mon.c index 7eac87d641cf..53f853f08428 100644 --- a/drivers/staging/rtl8188eu/os_dep/mon.c +++ b/drivers/staging/rtl8188eu/os_dep/mon.c @@ -70,6 +70,8 @@ static void mon_recv_decrypted_recv(struct net_device *dev, const u8 *data, int data_len, int iv_len, int icv_len) { struct sk_buff *skb; + struct ieee80211_hdr *hdr; + int hdr_len; skb = netdev_alloc_skb(dev, data_len); if (!skb) @@ -80,7 +82,19 @@ static void mon_recv_decrypted_recv(struct net_device *dev, const u8 *data, * Frame data is not encrypted. Strip off protection so * userspace doesn't think that it is. */ - unprotect_frame(skb, iv_len, icv_len); + + hdr = (struct ieee80211_hdr *)skb->data; + hdr_len = ieee80211_hdrlen(hdr->frame_control); + + if (skb->len < hdr_len + iv_len + icv_len) { + if (ieee80211_has_protected(hdr->frame_control)) { + hdr->frame_control &= ~cpu_to_le16(IEEE80211_FCTL_PROTECTED); + + memmove(skb->data + iv_len, skb->data, hdr_len); + skb_pull(skb, iv_len); + skb_trim(skb, skb->len - icv_len); + } + } skb->ip_summed = CHECKSUM_UNNECESSARY; skb->protocol = eth_type_trans(skb, dev); |