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Wed, 12 Mar 2025 13:54:22 -0700 (PDT) Received: from [127.0.0.1] ([2001:67c:2fbc:1:a42b:bae6:6f7d:117f]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3912c10437dsm22481393f8f.99.2025.03.12.13.54.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 12 Mar 2025 13:54:22 -0700 (PDT) From: Antonio Quartulli Subject: [PATCH net-next v23 00/23] Introducing OpenVPN Data Channel Offload Date: Wed, 12 Mar 2025 21:54:09 +0100 Message-Id: <20250312-b4-ovpn-v23-0-76066bc0a30c@openvpn.net> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-B4-Tracking: v=1; b=H4sIAHH00WcC/23SzW7DIAwH8Fepch4b2HyEnfYe0w4QzJrDkiqpo k5V331Opi5UIzdifv4D8rWZaeppbl4P12aipZ/7ceAF4NOh6Y5h+CTRJ/7RgAStpAQRtRiX0yC IPzSd9TpAw7tPE+X+srV6bwY6i4Eu5+aDKzHMJOIUhu64drrXXr5CP6zy2M/ncfrezrD4zf+mK fuXtnghRQiRfAIwIZm38UQDV5653ZayKFlQMDtVkm1snUHpnIvkKlaV1hdWsU2krW87hwFqubB bKB6IC2wBfc4OMWZfy8XSFtdVyNa6HHUkay1BxerSlmfWbCmAxi4rq1Ut1xSW77hbwxaVJuhCk la1FWtLW+ba1RJKqZRB22LFurs1vEkW1rHVLgI6R8aqmm1Li4Vt2aosZYq+g5hsxfrdPt53nav WJpNChqBd+G9BFhbcbmGdK48ZLaKSLeqKhd1imQvbbEQX+TjG8EM+2tvt9gPG4rmBmwMAAA== X-Change-ID: 20241002-b4-ovpn-eeee35c694a2 To: netdev@vger.kernel.org, Eric Dumazet , Jakub Kicinski , Paolo Abeni , Donald Hunter , Antonio Quartulli , Shuah Khan , sd@queasysnail.net, ryazanov.s.a@gmail.com, Andrew Lunn Cc: Simon Horman , linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, Xiao Liang , steffen.klassert@secunet.com, antony.antony@secunet.com, willemdebruijn.kernel@gmail.com, David Ahern , Andrew Lunn , Shuah Khan X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=5956; i=antonio@openvpn.net; h=from:subject:message-id; bh=btfUg9oN/41pa1YWzUjIaz5WlLO8+85KPov2UHEXegA=; b=owEBbQGS/pANAwAIAQtw5TqgONWHAcsmYgBn0fR15cJY46a/p5rdV6aVCiS2OBZjW6gOMR+2d s5KAWfQO5eJATMEAAEIAB0WIQSZq9xs+NQS5N5fwPwLcOU6oDjVhwUCZ9H0dQAKCRALcOU6oDjV h/boCACHZdc8O+4ulqEEXQrx9KChx+9MBtTOKR3yrEfWaR+xHNWWYezrLSJL4+lLIHHXaoTuj7w OzHSiDJBF8HxIPgO+t/q35HIW1pp0DDIX5TGBIaWpv7UyhKGetUzQduwiO8W5F9/seSvZ7caEHO X0s7B/mmyDVwIgIuGtPFjLQy7ymHUvMImpsoOalyPXHBCrb82vlEtGNRPfKUQHbRuIawQoW7OkO udg1BDo6ovtd881jYV8PZV78Y6FesuLI9ydLj5hyvCIRMqy6aaUVhbfBMv9tMM3UgF2rgF+fLi/ MUIWy9tftIQrjPWk0FqcR7gvvlA9gponGi+bUODWuv00P4MC X-Developer-Key: i=antonio@openvpn.net; a=openpgp; fpr=CABDA1282017C267219885C748F0CCB68F59D14C X-Patchwork-Delegate: kuba@kernel.org Notable changes since v22: * ensure local endpoint is copied only if one is specified (compile error) Notable changes since v21: * accessed crypto_slot->primary_idx via READ/WRITE_ONCE * made ovpn_aead_init() static * converted link tx/rx packet counters from u32 to to uint * ensured all u32 NL attributes are read by nla_get_u32() * ensured all u32 NL attrivutes are written by nla_put_u32() * reset cache upon float or local endpoint change * dropped check for delta > 0 in keepalive worker scheduling * improved comments in update endpoints logic * converted local_ip to void* to avoid useless casts Please note that some patches were already reviewed/tested by a few people. These patches have retained the tags as they have hardly been touched. The latest code can also be found at: https://github.com/OpenVPN/ovpn-net-next Thanks a lot! Best Regards, Antonio Quartulli OpenVPN Inc. --- Antonio Quartulli (23): net: introduce OpenVPN Data Channel Offload (ovpn) ovpn: add basic netlink support ovpn: add basic interface creation/destruction/management routines ovpn: keep carrier always on for MP interfaces ovpn: introduce the ovpn_peer object ovpn: introduce the ovpn_socket object ovpn: implement basic TX path (UDP) ovpn: implement basic RX path (UDP) ovpn: implement packet processing ovpn: store tunnel and transport statistics ovpn: implement TCP transport skb: implement skb_send_sock_locked_with_flags() ovpn: add support for MSG_NOSIGNAL in tcp_sendmsg ovpn: implement multi-peer support ovpn: implement peer lookup logic ovpn: implement keepalive mechanism ovpn: add support for updating local or remote UDP endpoint ovpn: implement peer add/get/dump/delete via netlink ovpn: implement key add/get/del/swap via netlink ovpn: kill key and notify userspace in case of IV exhaustion ovpn: notify userspace when a peer is deleted ovpn: add basic ethtool support testing/selftests: add test tool and scripts for ovpn module Documentation/netlink/specs/ovpn.yaml | 367 +++ Documentation/netlink/specs/rt_link.yaml | 16 + MAINTAINERS | 11 + drivers/net/Kconfig | 15 + drivers/net/Makefile | 1 + drivers/net/ovpn/Makefile | 22 + drivers/net/ovpn/bind.c | 55 + drivers/net/ovpn/bind.h | 101 + drivers/net/ovpn/crypto.c | 211 ++ drivers/net/ovpn/crypto.h | 145 ++ drivers/net/ovpn/crypto_aead.c | 409 ++++ drivers/net/ovpn/crypto_aead.h | 29 + drivers/net/ovpn/io.c | 462 ++++ drivers/net/ovpn/io.h | 34 + drivers/net/ovpn/main.c | 339 +++ drivers/net/ovpn/main.h | 14 + drivers/net/ovpn/netlink-gen.c | 213 ++ drivers/net/ovpn/netlink-gen.h | 41 + drivers/net/ovpn/netlink.c | 1249 ++++++++++ drivers/net/ovpn/netlink.h | 18 + drivers/net/ovpn/ovpnpriv.h | 57 + drivers/net/ovpn/peer.c | 1367 +++++++++++ drivers/net/ovpn/peer.h | 163 ++ drivers/net/ovpn/pktid.c | 129 ++ drivers/net/ovpn/pktid.h | 87 + drivers/net/ovpn/proto.h | 118 + drivers/net/ovpn/skb.h | 61 + drivers/net/ovpn/socket.c | 244 ++ drivers/net/ovpn/socket.h | 49 + drivers/net/ovpn/stats.c | 21 + drivers/net/ovpn/stats.h | 47 + drivers/net/ovpn/tcp.c | 592 +++++ drivers/net/ovpn/tcp.h | 36 + drivers/net/ovpn/udp.c | 442 ++++ drivers/net/ovpn/udp.h | 25 + include/linux/skbuff.h | 2 + include/uapi/linux/if_link.h | 15 + include/uapi/linux/ovpn.h | 109 + include/uapi/linux/udp.h | 1 + net/core/skbuff.c | 18 +- net/ipv6/af_inet6.c | 1 + net/ipv6/udp.c | 1 + tools/testing/selftests/Makefile | 1 + tools/testing/selftests/net/ovpn/.gitignore | 2 + tools/testing/selftests/net/ovpn/Makefile | 31 + tools/testing/selftests/net/ovpn/common.sh | 92 + tools/testing/selftests/net/ovpn/config | 10 + tools/testing/selftests/net/ovpn/data64.key | 5 + tools/testing/selftests/net/ovpn/ovpn-cli.c | 2395 ++++++++++++++++++++ tools/testing/selftests/net/ovpn/tcp_peers.txt | 5 + .../testing/selftests/net/ovpn/test-chachapoly.sh | 9 + .../selftests/net/ovpn/test-close-socket-tcp.sh | 9 + .../selftests/net/ovpn/test-close-socket.sh | 45 + tools/testing/selftests/net/ovpn/test-float.sh | 9 + tools/testing/selftests/net/ovpn/test-tcp.sh | 9 + tools/testing/selftests/net/ovpn/test.sh | 113 + tools/testing/selftests/net/ovpn/udp_peers.txt | 5 + 57 files changed, 10072 insertions(+), 5 deletions(-) --- base-commit: 40587f749df216889163dd6e02d88ad53e759e66 change-id: 20241002-b4-ovpn-eeee35c694a2 Best regards,