#include <linux/module.h>
#include <linux/types.h>
#include <linux/kernel.h>
-#include <linux/sched.h>
#include <linux/mm.h>
#include <linux/interrupt.h>
#include <linux/in.h>
void skb_over_panic(struct sk_buff *skb, int sz, void *here)
{
printk(KERN_EMERG "skb_over_panic: text:%p len:%d put:%d head:%p "
- "data:%p tail:%p end:%p dev:%s\n",
+ "data:%p tail:%p end:%p dev:%s\n",
here, skb->len, sz, skb->head, skb->data, skb->tail, skb->end,
skb->dev ? skb->dev->name : "<NULL>");
BUG();
void skb_under_panic(struct sk_buff *skb, int sz, void *here)
{
printk(KERN_EMERG "skb_under_panic: text:%p len:%d put:%d head:%p "
- "data:%p tail:%p end:%p dev:%s\n",
+ "data:%p tail:%p end:%p dev:%s\n",
here, skb->len, sz, skb->head, skb->data, skb->tail, skb->end,
skb->dev ? skb->dev->name : "<NULL>");
BUG();
goto out;
}
-/**
- * alloc_skb_from_cache - allocate a network buffer
- * @cp: kmem_cache from which to allocate the data area
- * (object size must be big enough for @size bytes + skb overheads)
- * @size: size to allocate
- * @gfp_mask: allocation mask
- *
- * Allocate a new &sk_buff. The returned buffer has no headroom and
- * tail room of size bytes. The object has a reference count of one.
- * The return is the buffer. On a failure the return is %NULL.
- *
- * Buffers may only be allocated from interrupts using a @gfp_mask of
- * %GFP_ATOMIC.
- */
-struct sk_buff *alloc_skb_from_cache(struct kmem_cache *cp,
- unsigned int size,
- gfp_t gfp_mask)
-{
- struct sk_buff *skb;
- u8 *data;
-
- /* Get the HEAD */
- skb = kmem_cache_alloc(skbuff_head_cache,
- gfp_mask & ~__GFP_DMA);
- if (!skb)
- goto out;
-
- /* Get the DATA. */
- size = SKB_DATA_ALIGN(size);
- data = kmem_cache_alloc(cp, gfp_mask);
- if (!data)
- goto nodata;
-
- memset(skb, 0, offsetof(struct sk_buff, truesize));
- skb->truesize = size + sizeof(struct sk_buff);
- atomic_set(&skb->users, 1);
- skb->head = data;
- skb->data = data;
- skb->tail = data;
- skb->end = data + size;
-
- atomic_set(&(skb_shinfo(skb)->dataref), 1);
- skb_shinfo(skb)->nr_frags = 0;
- skb_shinfo(skb)->gso_size = 0;
- skb_shinfo(skb)->gso_segs = 0;
- skb_shinfo(skb)->gso_type = 0;
- skb_shinfo(skb)->frag_list = NULL;
-out:
- return skb;
-nodata:
- kmem_cache_free(skbuff_head_cache, skb);
- skb = NULL;
- goto out;
-}
-
/**
* __netdev_alloc_skb - allocate an skbuff for rx on a specific device
* @dev: network device to receive on
int node = dev->dev.parent ? dev_to_node(dev->dev.parent) : -1;
struct sk_buff *skb;
- skb = __alloc_skb(length + NET_SKB_PAD, gfp_mask, 0, node);
+ skb = __alloc_skb(length + NET_SKB_PAD, gfp_mask, 0, node);
if (likely(skb)) {
skb_reserve(skb, NET_SKB_PAD);
skb->dev = dev;
memcpy(n->cb, skb->cb, sizeof(skb->cb));
C(len);
C(data_len);
+ C(mac_len);
C(csum);
C(local_df);
n->cloned = 1;
n->tc_verd = SET_TC_VERD(skb->tc_verd,0);
n->tc_verd = CLR_TC_OK2MUNGE(n->tc_verd);
n->tc_verd = CLR_TC_MUNGED(n->tc_verd);
- C(input_dev);
+ C(iif);
#endif
skb_copy_secmark(n, skb);
#endif
*
* May return error in out of memory cases. The skb is freed on error.
*/
-
+
int skb_pad(struct sk_buff *skb, int pad)
{
int err;
int ntail;
-
+
/* If the skbuff is non linear tailroom is always zero.. */
if (!skb_cloned(skb) && skb_tailroom(skb) >= pad) {
memset(skb->data+skb->len, 0, pad);
free_skb:
kfree_skb(skb);
return err;
-}
-
+}
+
/* Trims skb to length len. It can change skb pointers.
*/
nskb->mac_len = skb->mac_len;
skb_reserve(nskb, headroom);
- nskb->mac.raw = nskb->data;
+ skb_reset_mac_header(nskb);
nskb->nh.raw = nskb->data + skb->mac_len;
nskb->h.raw = nskb->nh.raw + (skb->h.raw - skb->nh.raw);
memcpy(skb_put(nskb, doffset), skb->data, doffset);
err:
while ((skb = segs)) {
segs = skb->next;
- kfree(skb);
+ kfree_skb(skb);
}
return ERR_PTR(err);
}