linux/include/uapi
Dmitry Safonov 4954f17dde net/tcp: Introduce TCP_AO setsockopt()s
Add 3 setsockopt()s:
1. TCP_AO_ADD_KEY to add a new Master Key Tuple (MKT) on a socket
2. TCP_AO_DEL_KEY to delete present MKT from a socket
3. TCP_AO_INFO to change flags, Current_key/RNext_key on a TCP-AO sk

Userspace has to introduce keys on every socket it wants to use TCP-AO
option on, similarly to TCP_MD5SIG/TCP_MD5SIG_EXT.
RFC5925 prohibits definition of MKTs that would match the same peer,
so do sanity checks on the data provided by userspace. Be as
conservative as possible, including refusal of defining MKT on
an established connection with no AO, removing the key in-use and etc.

(1) and (2) are to be used by userspace key manager to add/remove keys.
(3) main purpose is to set RNext_key, which (as prescribed by RFC5925)
is the KeyID that will be requested in TCP-AO header from the peer to
sign their segments with.

At this moment the life of ao_info ends in tcp_v4_destroy_sock().

Co-developed-by: Francesco Ruggeri <fruggeri@arista.com>
Signed-off-by: Francesco Ruggeri <fruggeri@arista.com>
Co-developed-by: Salam Noureddine <noureddine@arista.com>
Signed-off-by: Salam Noureddine <noureddine@arista.com>
Signed-off-by: Dmitry Safonov <dima@arista.com>
Acked-by: David Ahern <dsahern@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
2023-10-27 10:35:44 +01:00
..
asm-generic Add x86 shadow stack support 2023-08-31 12:20:12 -07:00
drm drm/nouveau: exec: fix ioctl kernel-doc warning 2023-10-12 19:49:56 +02:00
linux net/tcp: Introduce TCP_AO setsockopt()s 2023-10-27 10:35:44 +01:00
misc habanalabs/uapi: move uapi file to drm 2023-01-26 10:56:23 +02:00
mtd This pull request contains updates for UBI and UBIFS 2022-10-14 18:23:23 -07:00
rdma RDMA/irdma: Use HW specific minimum WQ size 2023-07-30 15:43:00 +03:00
scsi Merge branch 'fixes' into misc 2023-09-02 08:25:19 +01:00
sound ASoC: SOF: topology: Add a token for dropping widget name in kcontrol name 2023-08-15 13:25:56 +01:00
video
xen xen: privcmd: Add support for irqfd 2023-08-22 12:12:50 +02:00
Kbuild