kernel/linux.git/include/net/flow_dissector.h, branch v4.9.196

rps: flow_dissector: Add the const for the parameter of flow_keys_have_l4

2016-09-01T23:51:08+00:00

Add the const for the parameter of flow_keys_have_l4 for the readability. Signed-off-by: Gao Feng Signed-off-by: David S. Miller

flow_dissector: Get vlan priority in addition to vlan id

2016-08-19T06:13:13+00:00

Add vlan priority check to the flow dissector by adding new flow dissector struct, flow_dissector_key_vlan which includes vlan tag fields. vlan_id and flow_label fields were under the same struct (flow_dissector_key_tags). It was a convenient setting since struct flow_dissector_key_tags is used by struct flow_keys and by setting vlan_id and flow_label under the same struct, we get precisely 24 or 48 bytes in flow_keys from flow_dissector_key_basic. Now, when adding vlan priority support, the code will be cleaner if flow_label and vlan tag won't be under the same struct anymore. Signed-off-by: Hadar Hen Zion Acked-by: Jiri Pirko Signed-off-by: David S. Miller

net/flow_dissector: Make dissector_uses_key() and skb_flow_dissector_target() public

2016-03-10T21:24:02+00:00

Will be used in a following patch to query if a key is being used, and what it's value in the target object. Acked-by: John Fastabend Acked-by: Jiri Pirko Signed-off-by: Amir Vadai Signed-off-by: David S. Miller

flow_dissector: Don't use bit fields.

2015-09-01T23:46:08+00:00

Just have a flags member instead. In file included from include/linux/linkage.h:4:0, from include/linux/kernel.h:6, from net/core/flow_dissector.c:1: In function 'flow_keys_hash_start', inlined from 'flow_hash_from_keys' at net/core/flow_dissector.c:553:34: >> include/linux/compiler.h:447:38: error: call to '__compiletime_assert_459' declared with attribute error: BUILD_BUG_ON failed: FLOW_KEYS_HASH_OFFSET % sizeof(u32) Reported-by: kbuild test robot Signed-off-by: David S. Miller

flow_dissector: Add control/reporting of encapsulation

2015-09-01T22:06:23+00:00

Add an input flag to flow dissector on rather dissection should stop when encapsulation is detected (IP/IP or GRE). Also, add a key_control flag that indicates encapsulation was encountered during the dissection. Signed-off-by: Tom Herbert Signed-off-by: David S. Miller

flow_dissector: Add flag to stop parsing when an IPv6 flow label is seen

2015-09-01T22:06:23+00:00

Add an input flag to flow dissector on rather dissection should be stopped when a flow label is encountered. Presumably, the flow label is derived from a sufficient hash of an inner transport packet so further dissection is not needed (that is ports are not included in the flow hash). Using the flow label instead of ports has the additional benefit that packet fragments should hash to same value as non-fragments for a flow (assuming that the same flow label is used). We set this flag by default in for skb_get_hash. Signed-off-by: Tom Herbert Signed-off-by: David S. Miller

flow_dissector: Add flag to stop parsing at L3

2015-09-01T22:06:23+00:00

Add an input flag to flow dissector on rather dissection should be stopped when an L3 packet is encountered. This would be useful if a caller just wanted to get IP addresses of the outermost header (e.g. to do an L3 hash). Signed-off-by: Tom Herbert Signed-off-by: David S. Miller

flow_dissector: Add control/reporting of fragmentation

2015-09-01T22:06:22+00:00

Add an input flag to flow dissector on rather dissection should be attempted on a first fragment. Also add key_control flags to indicate that a packet is a fragment or first fragment. Signed-off-by: Tom Herbert Signed-off-by: David S. Miller

flowi: Abstract out functions to get flow hash based on flowi

2015-09-01T22:06:22+00:00

Create __get_hash_from_flowi6 and __get_hash_from_flowi4 to get the flow keys and hash based on flowi structures. These are called by __skb_get_hash_flowi6 and __skb_get_hash_flowi4. Also, created get_hash_from_flowi6 and get_hash_from_flowi4 which can be called when just the hash value for a flowi is needed. Signed-off-by: Tom Herbert Signed-off-by: David S. Miller

skbuff: Make __skb_set_sw_hash a general function

2015-09-01T22:06:22+00:00

Move __skb_set_sw_hash to skbuff.h and add __skb_set_hash which is a common method (between __skb_set_sw_hash and skb_set_hash) to set the hash in an skbuff. Also, move skb_clear_hash to be closer to __skb_set_hash. Signed-off-by: Tom Herbert Signed-off-by: David S. Miller