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Message-ID: <CAKv+Gu-oCH4D_otvMk+R_6z_p73Le90PkdQUUPnT6q0kWVL4Jw@mail.gmail.com>
Date: Wed, 3 Oct 2018 13:15:38 +0200
From: Ard Biesheuvel <ard.biesheuvel@...aro.org>
To: "Jason A. Donenfeld" <Jason@...c4.com>
Cc: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
"<netdev@...r.kernel.org>" <netdev@...r.kernel.org>,
"open list:HARDWARE RANDOM NUMBER GENERATOR CORE"
<linux-crypto@...r.kernel.org>,
"David S. Miller" <davem@...emloft.net>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: Re: [PATCH net-next v6 23/23] net: WireGuard secure network tunnel
On 25 September 2018 at 16:56, Jason A. Donenfeld <Jason@...c4.com> wrote:
> WireGuard is a layer 3 secure networking tunnel made specifically for
> the kernel, that aims to be much simpler and easier to audit than IPsec.
...
> Signed-off-by: Jason A. Donenfeld <Jason@...c4.com>
> Cc: David Miller <davem@...emloft.net>
> Cc: Greg KH <gregkh@...uxfoundation.org>
> ---
> MAINTAINERS | 8 +
> drivers/net/Kconfig | 30 +
> drivers/net/Makefile | 1 +
> drivers/net/wireguard/Makefile | 18 +
> drivers/net/wireguard/allowedips.c | 404 ++++++++++
> drivers/net/wireguard/allowedips.h | 55 ++
> drivers/net/wireguard/cookie.c | 234 ++++++
> drivers/net/wireguard/cookie.h | 59 ++
> drivers/net/wireguard/device.c | 438 +++++++++++
> drivers/net/wireguard/device.h | 65 ++
> drivers/net/wireguard/hashtables.c | 209 +++++
> drivers/net/wireguard/hashtables.h | 63 ++
> drivers/net/wireguard/main.c | 65 ++
> drivers/net/wireguard/messages.h | 128 +++
> drivers/net/wireguard/netlink.c | 606 ++++++++++++++
> drivers/net/wireguard/netlink.h | 12 +
> drivers/net/wireguard/noise.c | 784 +++++++++++++++++++
> drivers/net/wireguard/noise.h | 129 +++
> drivers/net/wireguard/peer.c | 191 +++++
> drivers/net/wireguard/peer.h | 87 ++
> drivers/net/wireguard/queueing.c | 52 ++
> drivers/net/wireguard/queueing.h | 193 +++++
> drivers/net/wireguard/ratelimiter.c | 220 ++++++
> drivers/net/wireguard/ratelimiter.h | 19 +
> drivers/net/wireguard/receive.c | 595 ++++++++++++++
> drivers/net/wireguard/selftest/allowedips.h | 663 ++++++++++++++++
> drivers/net/wireguard/selftest/counter.h | 103 +++
> drivers/net/wireguard/selftest/ratelimiter.h | 178 +++++
> drivers/net/wireguard/send.c | 420 ++++++++++
> drivers/net/wireguard/socket.c | 432 ++++++++++
> drivers/net/wireguard/socket.h | 44 ++
> drivers/net/wireguard/timers.c | 256 ++++++
> drivers/net/wireguard/timers.h | 30 +
> drivers/net/wireguard/version.h | 1 +
> include/uapi/linux/wireguard.h | 190 +++++
> tools/testing/selftests/wireguard/netns.sh | 499 ++++++++++++
> 36 files changed, 7481 insertions(+)
> create mode 100644 drivers/net/wireguard/Makefile
> create mode 100644 drivers/net/wireguard/allowedips.c
> create mode 100644 drivers/net/wireguard/allowedips.h
> create mode 100644 drivers/net/wireguard/cookie.c
> create mode 100644 drivers/net/wireguard/cookie.h
> create mode 100644 drivers/net/wireguard/device.c
> create mode 100644 drivers/net/wireguard/device.h
> create mode 100644 drivers/net/wireguard/hashtables.c
> create mode 100644 drivers/net/wireguard/hashtables.h
> create mode 100644 drivers/net/wireguard/main.c
> create mode 100644 drivers/net/wireguard/messages.h
> create mode 100644 drivers/net/wireguard/netlink.c
> create mode 100644 drivers/net/wireguard/netlink.h
> create mode 100644 drivers/net/wireguard/noise.c
> create mode 100644 drivers/net/wireguard/noise.h
> create mode 100644 drivers/net/wireguard/peer.c
> create mode 100644 drivers/net/wireguard/peer.h
> create mode 100644 drivers/net/wireguard/queueing.c
> create mode 100644 drivers/net/wireguard/queueing.h
> create mode 100644 drivers/net/wireguard/ratelimiter.c
> create mode 100644 drivers/net/wireguard/ratelimiter.h
> create mode 100644 drivers/net/wireguard/receive.c
> create mode 100644 drivers/net/wireguard/selftest/allowedips.h
> create mode 100644 drivers/net/wireguard/selftest/counter.h
> create mode 100644 drivers/net/wireguard/selftest/ratelimiter.h
> create mode 100644 drivers/net/wireguard/send.c
> create mode 100644 drivers/net/wireguard/socket.c
> create mode 100644 drivers/net/wireguard/socket.h
> create mode 100644 drivers/net/wireguard/timers.c
> create mode 100644 drivers/net/wireguard/timers.h
> create mode 100644 drivers/net/wireguard/version.h
> create mode 100644 include/uapi/linux/wireguard.h
> create mode 100755 tools/testing/selftests/wireguard/netns.sh
>
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 5967c737f3ce..32db7ebad86e 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -15823,6 +15823,14 @@ L: linux-gpio@...r.kernel.org
> S: Maintained
> F: drivers/gpio/gpio-ws16c48.c
>
> +WIREGUARD SECURE NETWORK TUNNEL
> +M: Jason A. Donenfeld <Jason@...c4.com>
> +S: Maintained
> +F: drivers/net/wireguard/
> +F: tools/testing/selftests/wireguard/
> +L: wireguard@...ts.zx2c4.com
> +L: netdev@...r.kernel.org
> +
> WISTRON LAPTOP BUTTON DRIVER
> M: Miloslav Trmac <mitr@...ny.cz>
> S: Maintained
> diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
> index d03775100f7d..aa631fe3b395 100644
> --- a/drivers/net/Kconfig
> +++ b/drivers/net/Kconfig
> @@ -70,6 +70,36 @@ config DUMMY
> To compile this driver as a module, choose M here: the module
> will be called dummy.
>
> +config WIREGUARD
> + tristate "WireGuard secure network tunnel"
> + depends on NET && INET
I think you need to add IPV6 here
> + select NET_UDP_TUNNEL
> + select DST_CACHE
> + select ZINC_CHACHA20POLY1305
> + select ZINC_BLAKE2S
> + select ZINC_CURVE25519
> + default m
Please drop this - we usually leave it up to the defconfigs or distro
configs to enable stuff like this.
> + help
> + WireGuard is a secure, fast, and easy to use replacement for IPSec
> + that uses modern cryptography and clever networking tricks. It's
> + designed to be fairly general purpose and abstract enough to fit most
> + use cases, while at the same time remaining extremely simple to
> + configure. See www.wireguard.com for more info.
> +
> + It's safe to say Y or M here, as the driver is very lightweight and
> + is only in use when an administrator chooses to add an interface.
> +
> +config WIREGUARD_DEBUG
> + bool "Debugging checks and verbose messages"
> + depends on WIREGUARD
> + help
> + This will write log messages for handshake and other events
> + that occur for a WireGuard interface. It will also perform some
> + extra validation checks and unit tests at various points. This is
> + only useful for debugging.
> +
> + Say N here unless you know what you're doing.
> +
> config EQUALIZER
> tristate "EQL (serial line load balancing) support"
> ---help---
...
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