That is equal to skb->head before skb_reserve, to help in the layer header changes.
Signed-off-by: Arnaldo Carvalho de Melo <[EMAIL PROTECTED]> --- net/ipv4/tcp_input.c | 8 +++++--- 1 files changed, 5 insertions(+), 3 deletions(-)
From c530bf48cc881327a6a2567cb85b87805e92c596 Mon Sep 17 00:00:00 2001 From: Arnaldo Carvalho de Melo <[EMAIL PROTECTED]> Date: Sat, 10 Mar 2007 12:47:22 -0300 Subject: [PATCH 09/11] [TCP]: Do the layer header setting in tcp_collapse relative to skb->data That is equal to skb->head before skb_reserve, to help in the layer header changes. Signed-off-by: Arnaldo Carvalho de Melo <[EMAIL PROTECTED]> --- net/ipv4/tcp_input.c | 8 +++++--- 1 files changed, 5 insertions(+), 3 deletions(-) diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c index fb02560..e5d1c2c 100644 --- a/net/ipv4/tcp_input.c +++ b/net/ipv4/tcp_input.c @@ -3632,11 +3632,13 @@ tcp_collapse(struct sock *sk, struct sk_buff_head *list, nskb = alloc_skb(copy+header, GFP_ATOMIC); if (!nskb) return; + + nskb->mac.raw = nskb->data + (skb->mac.raw - skb->head); + nskb->nh.raw = nskb->data + (skb->nh.raw - skb->head); + nskb->h.raw = nskb->data + (skb->h.raw - skb->head); + skb_reserve(nskb, header); memcpy(nskb->head, skb->head, header); - nskb->nh.raw = nskb->head + (skb->nh.raw-skb->head); - nskb->h.raw = nskb->head + (skb->h.raw-skb->head); - nskb->mac.raw = nskb->head + (skb->mac.raw-skb->head); memcpy(nskb->cb, skb->cb, sizeof(skb->cb)); TCP_SKB_CB(nskb)->seq = TCP_SKB_CB(nskb)->end_seq = start; __skb_insert(nskb, skb->prev, skb, list); -- 1.5.0.2
