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Message-Id: <20241206-b4-ovpn-v13-0-67fb4be666e2@openvpn.net>
Date: Fri, 06 Dec 2024 22:18:25 +0100
From: Antonio Quartulli <antonio@...nvpn.net>
To: netdev@...r.kernel.org, Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
Donald Hunter <donald.hunter@...il.com>,
Antonio Quartulli <antonio@...nvpn.net>, Shuah Khan <shuah@...nel.org>,
sd@...asysnail.net, ryazanov.s.a@...il.com,
Andrew Lunn <andrew+netdev@...n.ch>
Cc: Simon Horman <horms@...nel.org>, linux-kernel@...r.kernel.org,
linux-kselftest@...r.kernel.org, steffen.klassert@...unet.com,
antony.antony@...unet.com, Andrew Lunn <andrew@...n.ch>,
Shuah Khan <skhan@...uxfoundation.org>
Subject: [PATCH net-next v13 00/22] Introducing OpenVPN Data Channel
Offload
Notable changes since v12:
* dropped extra ovpn_peer_put() in ovpn_peer_del_p2p() in case os
mismatching peer
* ensured ret is not used uninitialized in ovpn_udp_output()
* dropped useless call to skb_probe_transport_header() in
ovpn_netdev_write()
* used rcu_access_pointer() to avoid rcu_read_lock/unlock in
ovpn_peer_check_by_src()
* moved TCP ipv6 proto and proto_ops creation to init function
* added EXPORT_SYMBOL_GPL(inet6_stream_ops) in af_inet6.c
* added comment for barrier() in ovpn_tcp_socket_detach()
* dropped call to barrier() in ovpn_tcp_close()
* deleted ovpn_peer_unhash() and moved content to ovpn_peer_remove()
* fixed clang complaint with ovpn_get_hash_head/ovpn_get_hash_slot
macros
* fixed deadlock on ovpn->lock in case of TCP socket error while sending
keepalive message. Fixed by sending message via scheduled worker,
without holding ovpn->lock
* get rid of ovpn_peer_del_nolock() and directly call ovpn_peer_remove()
when peer expires
* used local variable to temporarily store new socket in
ovpn_nl_peer_modify() instead of peer->sock directly
Please note that some patches were already reviewed by Andre Lunn,
Donald Hunter and Shuah Khan. They have retained the Reviewed-by tag
since no major code modification has happened since the review.
Patch
The latest code can also be found at:
https://github.com/OpenVPN/linux-kernel-ovpn
Thanks a lot!
Best Regards,
Antonio Quartulli
OpenVPN Inc.
---
Antonio Quartulli (22):
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
ovpn: implement multi-peer support
ovpn: implement peer lookup logic
ovpn: implement keepalive mechanism
ovpn: add support for updating local UDP endpoint
ovpn: add support for peer floating
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 | 368 +++
MAINTAINERS | 11 +
drivers/net/Kconfig | 14 +
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 | 383 ++++
drivers/net/ovpn/crypto_aead.h | 33 +
drivers/net/ovpn/io.c | 445 ++++
drivers/net/ovpn/io.h | 34 +
drivers/net/ovpn/main.c | 339 +++
drivers/net/ovpn/main.h | 14 +
drivers/net/ovpn/netlink-gen.c | 212 ++
drivers/net/ovpn/netlink-gen.h | 41 +
drivers/net/ovpn/netlink.c | 1180 ++++++++++
drivers/net/ovpn/netlink.h | 18 +
drivers/net/ovpn/ovpnstruct.h | 57 +
drivers/net/ovpn/peer.c | 1266 +++++++++++
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 | 58 +
drivers/net/ovpn/socket.c | 180 ++
drivers/net/ovpn/socket.h | 55 +
drivers/net/ovpn/stats.c | 21 +
drivers/net/ovpn/stats.h | 47 +
drivers/net/ovpn/tcp.c | 578 +++++
drivers/net/ovpn/tcp.h | 33 +
drivers/net/ovpn/udp.c | 398 ++++
drivers/net/ovpn/udp.h | 23 +
include/uapi/linux/if_link.h | 15 +
include/uapi/linux/ovpn.h | 110 +
include/uapi/linux/udp.h | 1 +
net/ipv6/af_inet6.c | 1 +
tools/testing/selftests/Makefile | 1 +
tools/testing/selftests/net/ovpn/.gitignore | 2 +
tools/testing/selftests/net/ovpn/Makefile | 17 +
tools/testing/selftests/net/ovpn/config | 10 +
tools/testing/selftests/net/ovpn/data64.key | 5 +
tools/testing/selftests/net/ovpn/ovpn-cli.c | 2370 ++++++++++++++++++++
tools/testing/selftests/net/ovpn/tcp_peers.txt | 5 +
.../testing/selftests/net/ovpn/test-chachapoly.sh | 9 +
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 | 182 ++
tools/testing/selftests/net/ovpn/udp_peers.txt | 5 +
50 files changed, 9591 insertions(+)
---
base-commit: 152d00a913969514967ad3f962b3b1c8983eb2d7
change-id: 20241002-b4-ovpn-eeee35c694a2
Best regards,
--
Antonio Quartulli <antonio@...nvpn.net>
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