linux/include/net/ipv6.h, branch v4.3

ipv6: Enable auto flow labels by default

2015-08-01T00:07:12Z

Initialize auto_flowlabels to one. This enables automatic flow labels, individual socket may disable them using the IPV6_AUTOFLOWLABEL socket option. Signed-off-by: Tom Herbert Signed-off-by: David S. Miller

ipv6: Implement different admin modes for automatic flow labels

2015-08-01T00:07:11Z

Change the meaning of net.ipv6.auto_flowlabels to provide a mode for automatic flow labels generation. There are four modes: 0: flow labels are disabled 1: flow labels are enabled, sockets can opt-out 2: flow labels are allowed, sockets can opt-in 3: flow labels are enabled and enforced, no opt-out for sockets np->autoflowlabel is initialized according to the sysctl value. Signed-off-by: Tom Herbert Signed-off-by: David S. Miller

ipv6: Call skb_get_hash_flowi6 to get skb->hash in ip6_make_flowlabel

2015-08-01T00:07:11Z

We can't call skb_get_hash here since the packet is not complete to do flow_dissector. Create hash based on flowi6 instead. Signed-off-by: Tom Herbert Signed-off-by: David S. Miller

ipv6: change ipv6_stub_impl.ipv6_dst_lookup to take net argument

2015-07-31T22:21:30Z

This patch adds net argument to ipv6_stub_impl.ipv6_dst_lookup for use cases where sk is not available (like mpls). sk appears to be needed to get the namespace 'net' and is optional otherwise. This patch series changes ipv6_stub_impl.ipv6_dst_lookup to take net argument. sk remains optional. All callers of ipv6_stub_impl.ipv6_dst_lookup have been modified to pass net. I have modified them to use already available 'net' in the scope of the call. I can change them to sock_net(sk) to avoid any unintended change in behaviour if sock namespace is different. They dont seem to be from code inspection. Signed-off-by: Roopa Prabhu Signed-off-by: David S. Miller

net: Set sk_txhash from a random number

2015-07-30T05:44:04Z

This patch creates sk_set_txhash and eliminates protocol specific inet_set_txhash and ip6_set_txhash. sk_set_txhash simply sets a random number instead of performing flow dissection. sk_set_txash is also allowed to be called multiple times for the same socket, we'll need this when redoing the hash for negative routing advice. Signed-off-by: Tom Herbert Signed-off-by: David S. Miller

net: Add full IPv6 addresses to flow_keys

2015-06-04T22:44:30Z

This patch adds full IPv6 addresses into flow_keys and uses them as input to the flow hash function. The implementation supports either IPv4 or IPv6 addresses in a union, and selector is used to determine how may words to input to jhash2. We also add flow_get_u32_dst and flow_get_u32_src functions which are used to get a u32 representation of the source and destination addresses. For IPv6, ipv6_addr_hash is called. These functions retain getting the legacy values of src and dst in flow_keys. With this patch, Ethertype and IP protocol are now included in the flow hash input. Signed-off-by: Tom Herbert Signed-off-by: David S. Miller

net: Get skb hash over flow_keys structure

2015-06-04T22:44:30Z

This patch changes flow hashing to use jhash2 over the flow_keys structure instead just doing jhash_3words over src, dst, and ports. This method will allow us take more input into the hashing function so that we can include full IPv6 addresses, VLAN, flow labels etc. without needing to resort to xor'ing which makes for a poor hash. Acked-by: Jiri Pirko Signed-off-by: Tom Herbert Signed-off-by: David S. Miller

ipv6: ipv6_select_ident() returns a __be32

2015-05-26T00:27:11Z

ipv6_select_ident() returns a 32bit value in network order. Fixes: 286c2349f666 ("ipv6: Clean up ipv6_select_ident() and ip6_fragment()") Signed-off-by: Eric Dumazet Reported-by: kbuild test robot Acked-by: Martin KaFai Lau Signed-off-by: David S. Miller

ipv6: Remove external dependency on rt6i_dst and rt6i_src

2015-05-25T17:25:32Z

This patch removes the assumptions that the returned rt is always a RTF_CACHE entry with the rt6i_dst and rt6i_src containing the destination and source address. The dst and src can be recovered from the calling site. We may consider to rename (rt6i_dst, rt6i_src) to (rt6i_key_dst, rt6i_key_src) later. Signed-off-by: Martin KaFai Lau Reviewed-by: Hannes Frederic Sowa Cc: Steffen Klassert Cc: Julian Anastasov Signed-off-by: David S. Miller

ipv6: Clean up ipv6_select_ident() and ip6_fragment()

2015-05-25T17:25:32Z

This patch changes the ipv6_select_ident() signature to return a fragment id instead of taking a whole frag_hdr as a param to only set the frag_hdr->identification. It also cleans up ip6_fragment() to obtain the fragment id at the beginning instead of using multiple "if" later to check fragment id has been generated or not. Signed-off-by: Martin KaFai Lau Cc: Hannes Frederic Sowa Cc: Steffen Klassert Cc: Julian Anastasov Signed-off-by: David S. Miller