[SK_BUFF]: Some more layer header conversions

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

2 files changed, 19 insertions, 13 deletions

diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index 160d4f01c46e..ae8cf9a285fd 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -2357,8 +2357,12 @@ static struct sk_buff *fill_packet_ipv4(struct net_device *odev,
                 *vlan_encapsulated_proto = htons(ETH_P_IP);
         }
 
-        iph = (struct iphdr *)skb_put(skb, sizeof(struct iphdr));
-        udph = (struct udphdr *)skb_put(skb, sizeof(struct udphdr));
+        skb_set_network_header(skb, skb->tail - skb->data);
+        skb->h.raw = skb->nh.raw + sizeof(struct iphdr);
+        skb_put(skb, sizeof(struct iphdr) + sizeof(struct udphdr));
+
+        iph = ip_hdr(skb);
+        udph = udp_hdr(skb);
 
         memcpy(eth, pkt_dev->hh, 12);
         *(__be16 *) & eth[12] = protocol;
@@ -2387,12 +2391,11 @@ static struct sk_buff *fill_packet_ipv4(struct net_device *odev,
         iph->check = 0;
         iph->check = ip_fast_csum((void *)iph, iph->ihl);
         skb->protocol = protocol;
-        skb->mac.raw = ((u8 *) iph) - 14 - pkt_dev->nr_labels*sizeof(u32) -
-                VLAN_TAG_SIZE(pkt_dev) - SVLAN_TAG_SIZE(pkt_dev);
+        skb->mac.raw = (skb->nh.raw - ETH_HLEN -
+                        pkt_dev->nr_labels * sizeof(u32) -
+                        VLAN_TAG_SIZE(pkt_dev) - SVLAN_TAG_SIZE(pkt_dev));
         skb->dev = odev;
         skb->pkt_type = PACKET_HOST;
-        skb->nh.raw = (unsigned char *)iph;
-        skb->h.raw = (unsigned char *)udph;
 
         if (pkt_dev->nfrags <= 0)
                 pgh = (struct pktgen_hdr *)skb_put(skb, datalen);
@@ -2693,8 +2696,12 @@ static struct sk_buff *fill_packet_ipv6(struct net_device *odev,
                 *vlan_encapsulated_proto = htons(ETH_P_IPV6);
         }
 
-        iph = (struct ipv6hdr *)skb_put(skb, sizeof(struct ipv6hdr));
-        udph = (struct udphdr *)skb_put(skb, sizeof(struct udphdr));
+        skb_set_network_header(skb, skb->tail - skb->data);
+        skb->h.raw = skb->nh.raw + sizeof(struct ipv6hdr);
+        skb_put(skb, sizeof(struct ipv6hdr) + sizeof(struct udphdr));
+
+        iph = ipv6_hdr(skb);
+        udph = udp_hdr(skb);
 
         memcpy(eth, pkt_dev->hh, 12);
         *(__be16 *) & eth[12] = protocol;
@@ -2731,13 +2738,12 @@ static struct sk_buff *fill_packet_ipv6(struct net_device *odev,
         ipv6_addr_copy(&iph->daddr, &pkt_dev->cur_in6_daddr);
         ipv6_addr_copy(&iph->saddr, &pkt_dev->cur_in6_saddr);
 
-        skb->mac.raw = ((u8 *) iph) - 14 - pkt_dev->nr_labels*sizeof(u32) -
-                VLAN_TAG_SIZE(pkt_dev) - SVLAN_TAG_SIZE(pkt_dev);
+        skb->mac.raw = (skb->nh.raw - ETH_HLEN -
+                        pkt_dev->nr_labels * sizeof(u32) -
+                        VLAN_TAG_SIZE(pkt_dev) - SVLAN_TAG_SIZE(pkt_dev));
         skb->protocol = protocol;
         skb->dev = odev;
         skb->pkt_type = PACKET_HOST;
-        skb->nh.raw = (unsigned char *)iph;
-        skb->h.raw = (unsigned char *)udph;
 
         if (pkt_dev->nfrags <= 0)
                 pgh = (struct pktgen_hdr *)skb_put(skb, datalen);
diff --git a/net/core/skbuff.c b/net/core/skbuff.c
index 408cc99af6b3..87e000633f41 100644
--- a/net/core/skbuff.c
+++ b/net/core/skbuff.c
@@ -1905,7 +1905,7 @@ struct sk_buff *skb_segment(struct sk_buff *skb, int features)
 
                 skb_reserve(nskb, headroom);
                 skb_reset_mac_header(nskb);
-                nskb->nh.raw = nskb->data + skb->mac_len;
+                skb_set_network_header(nskb, skb->mac_len);
                 nskb->h.raw = nskb->nh.raw + (skb->h.raw - skb->nh.raw);
                 memcpy(skb_put(nskb, doffset), skb->data, doffset);