| 34,6 → 34,7 |
|---|
| skb->head = skb->data; |
| skb->tail = skb->data; |
| skb->len = 0; |
| skb->truesize = len; |
| |
| return skb; |
| } |
| 40,7 → 41,9 |
|---|
| |
| void skb_reserve(struct sk_buff *skb, int len) |
| { |
| /* Do nothing... */ |
| /* changed by PJ ... before it did nothing... */ |
| skb->data+=len; |
| skb->tail+=len; |
| } |
| |
| unsigned char *skb_put(struct sk_buff *skb, int len) |
| 59,3 → 62,53 |
|---|
| list->next = (struct sk_buff *)list; |
| list->qlen = 0; |
| } |
| |
| struct sk_buff *skb_realloc_headroom(struct sk_buff *skb, int newheadroom) |
| { |
| struct sk_buff *n; |
| unsigned long offset; |
| int headroom = skb_headroom(skb); |
| |
| /* |
| * Allocate the copy buffer |
| */ |
| |
| n=alloc_skb(skb->truesize+newheadroom-headroom, GFP_ATOMIC); |
| if(n==NULL) |
| return NULL; |
| |
| skb_reserve(n,newheadroom); |
| |
| /* |
| * Shift between the two data areas in bytes |
| */ |
| |
| offset=n->data-skb->data; |
| |
| /* Set the tail pointer and length */ |
| skb_put(n,skb->len); |
| /* Copy the bytes */ |
| memcpy(n->data,skb->data,skb->len); |
| n->list=NULL; |
| // n->sk=NULL; |
| // n->priority=skb->priority; |
| n->protocol=skb->protocol; |
| n->dev=skb->dev; |
| // n->dst=dst_clone(skb->dst); |
| // n->h.raw=skb->h.raw+offset; |
| // n->nh.raw=skb->nh.raw+offset; |
| // n->mac.raw=skb->mac.raw+offset; |
| memcpy(n->cb, skb->cb, sizeof(skb->cb)); |
| n->used=skb->used; |
| // n->is_clone=0; |
| // atomic_set(&n->users, 1); |
| // n->pkt_type=skb->pkt_type; |
| // n->stamp=skb->stamp; |
| // n->destructor = NULL; |
| // n->security=skb->security; |
| #ifdef CONFIG_IP_FIREWALL |
| n->fwmark = skb->fwmark; |
| #endif |
| |
| return n; |
| } |