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flow_dissector: Add flags argument to skb_flow_dissector functions

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The flags argument will allow control of the dissection process (for
instance whether to parse beyond L3).

Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Tom Herbert
2015-09-01 09:24:27 -07:00
committed by David S. Miller
parent a6e544b0a8
commit cd79a2382a
9 changed files with 23 additions and 19 deletions
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7
net/core/flow_dissector.c
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@@ -121,7 +121,8 @@ EXPORT_SYMBOL(__skb_flow_get_ports);
bool __skb_flow_dissect(const struct sk_buff *skb,
struct flow_dissector *flow_dissector,
void *target_container,
void *data, __be16 proto, int nhoff, int hlen)
void *data, __be16 proto, int nhoff, int hlen,
unsigned int flags)
{
struct flow_dissector_key_control *key_control;
struct flow_dissector_key_basic *key_basic;
@@ -556,7 +557,7 @@ EXPORT_SYMBOL(flow_hash_from_keys);
static inline u32 ___skb_get_hash(const struct sk_buff *skb,
struct flow_keys *keys, u32 keyval)
{
if (!skb_flow_dissect_flow_keys(skb, keys))
if (!skb_flow_dissect_flow_keys(skb, keys, 0))
return 0;
return __flow_hash_from_keys(keys, keyval);
@@ -726,7 +727,7 @@ u32 skb_get_poff(const struct sk_buff *skb)
{
struct flow_keys keys;
if (!skb_flow_dissect_flow_keys(skb, &keys))
if (!skb_flow_dissect_flow_keys(skb, &keys, 0))
return 0;
return __skb_get_poff(skb, skb->data, &keys, skb_headlen(skb));