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authorAlexander Duyck <alexander.h.duyck@intel.com>2014-09-06 03:20:26 +0400
committerDavid S. Miller <davem@davemloft.net>2014-09-06 04:47:02 +0400
commit56193d1bce2b2759cb4bdcc00cd05544894a0c90 (patch)
tree621b2ce35961049dd263c2f83aee3d9ec39ac686 /include/linux/skbuff.h
parent2c048e646212f9880e6f201771a30daa963d7f8b (diff)
downloadlinux-56193d1bce2b2759cb4bdcc00cd05544894a0c90.tar.xz
net: Add function for parsing the header length out of linear ethernet frames
This patch updates some of the flow_dissector api so that it can be used to parse the length of ethernet buffers stored in fragments. Most of the changes needed were to __skb_get_poff as it needed to be updated to support sending a linear buffer instead of a skb. I have split __skb_get_poff into two functions, the first is skb_get_poff and it retains the functionality of the original __skb_get_poff. The other function is __skb_get_poff which now works much like __skb_flow_dissect in relation to skb_flow_dissect in that it provides the same functionality but works with just a data buffer and hlen instead of needing an skb. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Acked-by: Alexei Starovoitov <ast@plumgrid.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/skbuff.h')
-rw-r--r--include/linux/skbuff.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 1cf0cfaef10a..07c9fdd0c126 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -3218,7 +3218,9 @@ bool skb_partial_csum_set(struct sk_buff *skb, u16 start, u16 off);
int skb_checksum_setup(struct sk_buff *skb, bool recalculate);
-u32 __skb_get_poff(const struct sk_buff *skb);
+u32 skb_get_poff(const struct sk_buff *skb);
+u32 __skb_get_poff(const struct sk_buff *skb, void *data,
+ const struct flow_keys *keys, int hlen);
/**
* skb_head_is_locked - Determine if the skb->head is locked down