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espintcp.h
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xfrm: add espintcp (RFC 8229) TCP encapsulation of IKE and IPsec messages (RFC 8229) is implemented as a TCP ULP, overriding in particular the sendmsg and recvmsg operations. A Stream Parser is used to extract messages out of the TCP stream using the first 2 bytes as length marker. Received IKE messages are put on "ike_queue", waiting to be dequeued by the custom recvmsg implementation. Received ESP messages are sent to XFRM, like with UDP encapsulation. Some of this code is taken from the original submission by Herbert Xu. Currently, only IPv4 is supported, like for UDP encapsulation. Co-developed-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Sabrina Dubroca <sd@queasysnail.net> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2019-11-25 14:49:02 +01:00
xfrm: espintcp: save and call old ->sk_destruct When ESP encapsulation is enabled on a TCP socket, I'm replacing the existing ->sk_destruct callback with espintcp_destruct. We still need to call the old callback to perform the other cleanups when the socket is destroyed. Save the old callback, and call it from espintcp_destruct. Fixes: e27cca96cd68 ("xfrm: add espintcp (RFC 8229)") Signed-off-by: Sabrina Dubroca <sd@queasysnail.net> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2020-04-16 17:45:44 +02:00
xfrm: add espintcp (RFC 8229) TCP encapsulation of IKE and IPsec messages (RFC 8229) is implemented as a TCP ULP, overriding in particular the sendmsg and recvmsg operations. A Stream Parser is used to extract messages out of the TCP stream using the first 2 bytes as length marker. Received IKE messages are put on "ike_queue", waiting to be dequeued by the custom recvmsg implementation. Received ESP messages are sent to XFRM, like with UDP encapsulation. Some of this code is taken from the original submission by Herbert Xu. Currently, only IPv4 is supported, like for UDP encapsulation. Co-developed-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Sabrina Dubroca <sd@queasysnail.net> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2019-11-25 14:49:02 +01:00
inet: preserve const qualifier in inet_csk() We can change inet_csk() to propagate its argument const qualifier, thanks to container_of_const(). We have to fix few places that had mistakes, like tcp_bound_rto(). Signed-off-by: Eric Dumazet <edumazet@google.com> Link: https://lore.kernel.org/r/20240329144931.295800-1-edumazet@google.com Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2024-03-29 14:49:31 +00:00
xfrm: add espintcp (RFC 8229) TCP encapsulation of IKE and IPsec messages (RFC 8229) is implemented as a TCP ULP, overriding in particular the sendmsg and recvmsg operations. A Stream Parser is used to extract messages out of the TCP stream using the first 2 bytes as length marker. Received IKE messages are put on "ike_queue", waiting to be dequeued by the custom recvmsg implementation. Received ESP messages are sent to XFRM, like with UDP encapsulation. Some of this code is taken from the original submission by Herbert Xu. Currently, only IPv4 is supported, like for UDP encapsulation. Co-developed-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Sabrina Dubroca <sd@queasysnail.net> Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
2019-11-25 14:49:02 +01:00
