forked from Minki/linux
47ec5303d7
Pull networking updates from David Miller:
1) Support 6Ghz band in ath11k driver, from Rajkumar Manoharan.
2) Support UDP segmentation in code TSO code, from Eric Dumazet.
3) Allow flashing different flash images in cxgb4 driver, from Vishal
Kulkarni.
4) Add drop frames counter and flow status to tc flower offloading,
from Po Liu.
5) Support n-tuple filters in cxgb4, from Vishal Kulkarni.
6) Various new indirect call avoidance, from Eric Dumazet and Brian
Vazquez.
7) Fix BPF verifier failures on 32-bit pointer arithmetic, from
Yonghong Song.
8) Support querying and setting hardware address of a port function via
devlink, use this in mlx5, from Parav Pandit.
9) Support hw ipsec offload on bonding slaves, from Jarod Wilson.
10) Switch qca8k driver over to phylink, from Jonathan McDowell.
11) In bpftool, show list of processes holding BPF FD references to
maps, programs, links, and btf objects. From Andrii Nakryiko.
12) Several conversions over to generic power management, from Vaibhav
Gupta.
13) Add support for SO_KEEPALIVE et al. to bpf_setsockopt(), from Dmitry
Yakunin.
14) Various https url conversions, from Alexander A. Klimov.
15) Timestamping and PHC support for mscc PHY driver, from Antoine
Tenart.
16) Support bpf iterating over tcp and udp sockets, from Yonghong Song.
17) Support 5GBASE-T i40e NICs, from Aleksandr Loktionov.
18) Add kTLS RX HW offload support to mlx5e, from Tariq Toukan.
19) Fix the ->ndo_start_xmit() return type to be netdev_tx_t in several
drivers. From Luc Van Oostenryck.
20) XDP support for xen-netfront, from Denis Kirjanov.
21) Support receive buffer autotuning in MPTCP, from Florian Westphal.
22) Support EF100 chip in sfc driver, from Edward Cree.
23) Add XDP support to mvpp2 driver, from Matteo Croce.
24) Support MPTCP in sock_diag, from Paolo Abeni.
25) Commonize UDP tunnel offloading code by creating udp_tunnel_nic
infrastructure, from Jakub Kicinski.
26) Several pci_ --> dma_ API conversions, from Christophe JAILLET.
27) Add FLOW_ACTION_POLICE support to mlxsw, from Ido Schimmel.
28) Add SK_LOOKUP bpf program type, from Jakub Sitnicki.
29) Refactor a lot of networking socket option handling code in order to
avoid set_fs() calls, from Christoph Hellwig.
30) Add rfc4884 support to icmp code, from Willem de Bruijn.
31) Support TBF offload in dpaa2-eth driver, from Ioana Ciornei.
32) Support XDP_REDIRECT in qede driver, from Alexander Lobakin.
33) Support PCI relaxed ordering in mlx5 driver, from Aya Levin.
34) Support TCP syncookies in MPTCP, from Flowian Westphal.
35) Fix several tricky cases of PMTU handling wrt. briding, from Stefano
Brivio.
* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2056 commits)
net: thunderx: initialize VF's mailbox mutex before first usage
usb: hso: remove bogus check for EINPROGRESS
usb: hso: no complaint about kmalloc failure
hso: fix bailout in error case of probe
ip_tunnel_core: Fix build for archs without _HAVE_ARCH_IPV6_CSUM
selftests/net: relax cpu affinity requirement in msg_zerocopy test
mptcp: be careful on subflow creation
selftests: rtnetlink: make kci_test_encap() return sub-test result
selftests: rtnetlink: correct the final return value for the test
net: dsa: sja1105: use detected device id instead of DT one on mismatch
tipc: set ub->ifindex for local ipv6 address
ipv6: add ipv6_dev_find()
net: openvswitch: silence suspicious RCU usage warning
Revert "vxlan: fix tos value before xmit"
ptp: only allow phase values lower than 1 period
farsync: switch from 'pci_' to 'dma_' API
wan: wanxl: switch from 'pci_' to 'dma_' API
hv_netvsc: do not use VF device if link is down
dpaa2-eth: Fix passing zero to 'PTR_ERR' warning
net: macb: Properly handle phylink on at91sam9x
...
84 lines
2.4 KiB
C
84 lines
2.4 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/* Multipath TCP cryptographic functions
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* Copyright (c) 2017 - 2019, Intel Corporation.
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*
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* Note: This code is based on mptcp_ctrl.c, mptcp_ipv4.c, and
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* mptcp_ipv6 from multipath-tcp.org, authored by:
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*
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* Sébastien Barré <sebastien.barre@uclouvain.be>
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* Christoph Paasch <christoph.paasch@uclouvain.be>
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* Jaakko Korkeaniemi <jaakko.korkeaniemi@aalto.fi>
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* Gregory Detal <gregory.detal@uclouvain.be>
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* Fabien Duchêne <fabien.duchene@uclouvain.be>
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* Andreas Seelinger <Andreas.Seelinger@rwth-aachen.de>
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* Lavkesh Lahngir <lavkesh51@gmail.com>
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* Andreas Ripke <ripke@neclab.eu>
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* Vlad Dogaru <vlad.dogaru@intel.com>
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* Octavian Purdila <octavian.purdila@intel.com>
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* John Ronan <jronan@tssg.org>
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* Catalin Nicutar <catalin.nicutar@gmail.com>
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* Brandon Heller <brandonh@stanford.edu>
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*/
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#include <linux/kernel.h>
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#include <crypto/sha.h>
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#include <asm/unaligned.h>
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#include "protocol.h"
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#define SHA256_DIGEST_WORDS (SHA256_DIGEST_SIZE / 4)
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void mptcp_crypto_key_sha(u64 key, u32 *token, u64 *idsn)
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{
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__be32 mptcp_hashed_key[SHA256_DIGEST_WORDS];
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__be64 input = cpu_to_be64(key);
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sha256((__force u8 *)&input, sizeof(input), (u8 *)mptcp_hashed_key);
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if (token)
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*token = be32_to_cpu(mptcp_hashed_key[0]);
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if (idsn)
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*idsn = be64_to_cpu(*((__be64 *)&mptcp_hashed_key[6]));
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}
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void mptcp_crypto_hmac_sha(u64 key1, u64 key2, u8 *msg, int len, void *hmac)
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{
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u8 input[SHA256_BLOCK_SIZE + SHA256_DIGEST_SIZE];
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u8 key1be[8];
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u8 key2be[8];
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int i;
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if (WARN_ON_ONCE(len > SHA256_DIGEST_SIZE))
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len = SHA256_DIGEST_SIZE;
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put_unaligned_be64(key1, key1be);
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put_unaligned_be64(key2, key2be);
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/* Generate key xored with ipad */
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memset(input, 0x36, SHA256_BLOCK_SIZE);
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for (i = 0; i < 8; i++)
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input[i] ^= key1be[i];
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for (i = 0; i < 8; i++)
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input[i + 8] ^= key2be[i];
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memcpy(&input[SHA256_BLOCK_SIZE], msg, len);
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/* emit sha256(K1 || msg) on the second input block, so we can
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* reuse 'input' for the last hashing
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*/
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sha256(input, SHA256_BLOCK_SIZE + len, &input[SHA256_BLOCK_SIZE]);
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/* Prepare second part of hmac */
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memset(input, 0x5C, SHA256_BLOCK_SIZE);
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for (i = 0; i < 8; i++)
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input[i] ^= key1be[i];
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for (i = 0; i < 8; i++)
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input[i + 8] ^= key2be[i];
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sha256(input, SHA256_BLOCK_SIZE + SHA256_DIGEST_SIZE, hmac);
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}
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#if IS_MODULE(CONFIG_MPTCP_KUNIT_TESTS)
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EXPORT_SYMBOL_GPL(mptcp_crypto_hmac_sha);
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#endif
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