[VLAN] vlan_dev: Use skb_reset_network_header().

[linux-2.6-block.git] / net / packet / af_packet.c

diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c
index 6f8c72d2413b65cad6a7c734737399e3bf3c5620..51c059b09a37754718144b652ed28923702cefcb 100644 (file)
--- a/net/packet/af_packet.c
+++ b/net/packet/af_packet.c
@@ -114,22 +114,22 @@ On receive:
 -----------
 
 Incoming, dev->hard_header!=NULL
-   mac.raw -> ll header
-   data    -> data
+   mac_header -> ll header
+   data       -> data
 
 Outgoing, dev->hard_header!=NULL
-   mac.raw -> ll header
-   data    -> ll header
+   mac_header -> ll header
+   data       -> ll header
 
 Incoming, dev->hard_header==NULL
-   mac.raw -> UNKNOWN position. It is very likely, that it points to ll header.
-             PPP makes it, that is wrong, because introduce assymetry
-             between rx and tx paths.
-   data    -> data
+   mac_header -> UNKNOWN position. It is very likely, that it points to ll
+                header.  PPP makes it, that is wrong, because introduce
+                 assymetry between rx and tx paths.
+   data       -> data
 
 Outgoing, dev->hard_header==NULL
-   mac.raw -> data. ll header is still not built!
-   data    -> data
+   mac_header -> data. ll header is still not built!
+   data       -> data
 
 Resume
   If dev->hard_header==NULL we are unlikely to restore sensible ll header.
@@ -139,12 +139,12 @@ On transmit:
 ------------
 
 dev->hard_header != NULL
-   mac.raw -> ll header
-   data    -> ll header
+   mac_header -> ll header
+   data       -> ll header
 
 dev->hard_header == NULL (ll header is added by device, we cannot control it)
-   mac.raw -> data
-   data -> data
+   mac_header -> data
+   data       -> data
 
    We should set nh.raw on output to correct posistion,
    packet classifier depends on it.
@@ -284,7 +284,7 @@ static int packet_rcv_spkt(struct sk_buff *skb, struct net_device *dev,  struct
         *      Incoming packets have ll header pulled,
         *      push it back.
         *
-        *      For outgoing ones skb->data == skb->mac.raw
+        *      For outgoing ones skb->data == skb_mac_header(skb)
         *      so that this procedure is noop.
         */
 
@@ -303,7 +303,7 @@ static int packet_rcv_spkt(struct sk_buff *skb, struct net_device *dev,  struct
 
        spkt = &PACKET_SKB_CB(skb)->sa.pkt;
 
-       skb_push(skb, skb->data-skb->mac.raw);
+       skb_push(skb, skb->data - skb_mac_header(skb));
 
        /*
         *      The SOCK_PACKET socket receives _all_ frames.
@@ -401,14 +401,14 @@ static int packet_sendmsg_spkt(struct kiocb *iocb, struct socket *sock,
         * notable one here. This should really be fixed at the driver level.
         */
        skb_reserve(skb, LL_RESERVED_SPACE(dev));
-       skb->nh.raw = skb->data;
+       skb_reset_network_header(skb);
 
        /* Try to align data part correctly */
        if (dev->hard_header) {
                skb->data -= dev->hard_header_len;
                skb->tail -= dev->hard_header_len;
                if (len < dev->hard_header_len)
-                       skb->nh.raw = skb->data;
+                       skb_reset_network_header(skb);
        }
 
        /* Returns -EFAULT on error */
@@ -488,10 +488,10 @@ static int packet_rcv(struct sk_buff *skb, struct net_device *dev, struct packet
                   never delivered to user.
                 */
                if (sk->sk_type != SOCK_DGRAM)
-                       skb_push(skb, skb->data - skb->mac.raw);
+                       skb_push(skb, skb->data - skb_mac_header(skb));
                else if (skb->pkt_type == PACKET_OUTGOING) {
                        /* Special case: outgoing packets have ll header at head */
-                       skb_pull(skb, skb->nh.raw - skb->data);
+                       skb_pull(skb, skb_network_offset(skb));
                }
        }
 
@@ -592,10 +592,10 @@ static int tpacket_rcv(struct sk_buff *skb, struct net_device *dev, struct packe
 
        if (dev->hard_header) {
                if (sk->sk_type != SOCK_DGRAM)
-                       skb_push(skb, skb->data - skb->mac.raw);
+                       skb_push(skb, skb->data - skb_mac_header(skb));
                else if (skb->pkt_type == PACKET_OUTGOING) {
                        /* Special case: outgoing packets have ll header at head */
-                       skb_pull(skb, skb->nh.raw - skb->data);
+                       skb_pull(skb, skb_network_offset(skb));
                }
        }
 
@@ -613,7 +613,7 @@ static int tpacket_rcv(struct sk_buff *skb, struct net_device *dev, struct packe
        if (sk->sk_type == SOCK_DGRAM) {
                macoff = netoff = TPACKET_ALIGN(TPACKET_HDRLEN) + 16;
        } else {
-               unsigned maclen = skb->nh.raw - skb->data;
+               unsigned maclen = skb_network_offset(skb);
                netoff = TPACKET_ALIGN(TPACKET_HDRLEN + (maclen < 16 ? 16 : maclen));
                macoff = netoff - maclen;
        }
@@ -768,7 +768,7 @@ static int packet_sendmsg(struct kiocb *iocb, struct socket *sock,
                goto out_unlock;
 
        skb_reserve(skb, LL_RESERVED_SPACE(dev));
-       skb->nh.raw = skb->data;
+       skb_reset_network_header(skb);
 
        if (dev->hard_header) {
                int res;
@@ -1145,7 +1145,7 @@ static int packet_recvmsg(struct kiocb *iocb, struct socket *sock,
                aux.tp_len = PACKET_SKB_CB(skb)->origlen;
                aux.tp_snaplen = skb->len;
                aux.tp_mac = 0;
-               aux.tp_net = skb->nh.raw - skb->data;
+               aux.tp_net = skb_network_offset(skb);
 
                put_cmsg(msg, SOL_PACKET, PACKET_AUXDATA, sizeof(aux), &aux);
        }