Files
linux/include/net
Dmitry Safonov f7dca36fc5 net/tcp: Add tcp_parse_auth_options()
Introduce a helper that:
(1) shares the common code with TCP-MD5 header options parsing
(2) looks for hash signature only once for both TCP-MD5 and TCP-AO
(3) fails with -EEXIST if any TCP sign option is present twice, see
    RFC5925 (2.2):
    ">> A single TCP segment MUST NOT have more than one TCP-AO in its
    options sequence. When multiple TCP-AOs appear, TCP MUST discard
    the segment."

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
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