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| author | Alexander Duyck <alexander.h.duyck@intel.com> | 2014-09-05 19:20:26 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-09-05 17:47:02 -0700 |
| commit | 56193d1bce2b2759cb4bdcc00cd05544894a0c90 (patch) | |
| tree | 621b2ce35961049dd263c2f83aee3d9ec39ac686 /include/linux | |
| parent | 2c048e646212f9880e6f201771a30daa963d7f8b (diff) | |
| download | linux-56193d1bce2b2759cb4bdcc00cd05544894a0c90.tar.gz linux-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')
| -rw-r--r-- | include/linux/etherdevice.h | 1 | ||||
| -rw-r--r-- | include/linux/skbuff.h | 4 |
2 files changed, 4 insertions, 1 deletions
diff --git a/include/linux/etherdevice.h b/include/linux/etherdevice.h index 9c5529dc6d07..733980fce8e3 100644 --- a/include/linux/etherdevice.h +++ b/include/linux/etherdevice.h @@ -29,6 +29,7 @@ #include <asm/bitsperlong.h> #ifdef __KERNEL__ +u32 eth_get_headlen(void *data, unsigned int max_len); __be16 eth_type_trans(struct sk_buff *skb, struct net_device *dev); extern const struct header_ops eth_header_ops; 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 |