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9f0cadc32d
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: e27cca96cd ("xfrm: add espintcp (RFC 8229)")
Signed-off-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
40 lines
966 B
C
40 lines
966 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _NET_ESPINTCP_H
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#define _NET_ESPINTCP_H
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#include <net/strparser.h>
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#include <linux/skmsg.h>
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void __init espintcp_init(void);
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int espintcp_push_skb(struct sock *sk, struct sk_buff *skb);
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int espintcp_queue_out(struct sock *sk, struct sk_buff *skb);
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bool tcp_is_ulp_esp(struct sock *sk);
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struct espintcp_msg {
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struct sk_buff *skb;
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struct sk_msg skmsg;
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int offset;
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int len;
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};
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struct espintcp_ctx {
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struct strparser strp;
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struct sk_buff_head ike_queue;
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struct sk_buff_head out_queue;
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struct espintcp_msg partial;
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void (*saved_data_ready)(struct sock *sk);
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void (*saved_write_space)(struct sock *sk);
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void (*saved_destruct)(struct sock *sk);
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struct work_struct work;
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bool tx_running;
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};
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static inline struct espintcp_ctx *espintcp_getctx(const struct sock *sk)
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{
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struct inet_connection_sock *icsk = inet_csk(sk);
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/* RCU is only needed for diag */
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return (__force void *)icsk->icsk_ulp_data;
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}
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#endif
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