xref: /openbmc/linux/include/net/handshake.h (revision 39d0e38d)
1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Generic netlink HANDSHAKE service.
4  *
5  * Author: Chuck Lever <chuck.lever@oracle.com>
6  *
7  * Copyright (c) 2023, Oracle and/or its affiliates.
8  */
9 
10 #ifndef _NET_HANDSHAKE_H
11 #define _NET_HANDSHAKE_H
12 
13 enum {
14 	TLS_NO_KEYRING = 0,
15 	TLS_NO_PEERID = 0,
16 	TLS_NO_CERT = 0,
17 	TLS_NO_PRIVKEY = 0,
18 };
19 
20 typedef void	(*tls_done_func_t)(void *data, int status,
21 				   key_serial_t peerid);
22 
23 struct tls_handshake_args {
24 	struct socket		*ta_sock;
25 	tls_done_func_t		ta_done;
26 	void			*ta_data;
27 	const char		*ta_peername;
28 	unsigned int		ta_timeout_ms;
29 	key_serial_t		ta_keyring;
30 	key_serial_t		ta_my_cert;
31 	key_serial_t		ta_my_privkey;
32 	unsigned int		ta_num_peerids;
33 	key_serial_t		ta_my_peerids[5];
34 };
35 
36 int tls_client_hello_anon(const struct tls_handshake_args *args, gfp_t flags);
37 int tls_client_hello_x509(const struct tls_handshake_args *args, gfp_t flags);
38 int tls_client_hello_psk(const struct tls_handshake_args *args, gfp_t flags);
39 int tls_server_hello_x509(const struct tls_handshake_args *args, gfp_t flags);
40 int tls_server_hello_psk(const struct tls_handshake_args *args, gfp_t flags);
41 
42 bool tls_handshake_cancel(struct sock *sk);
43 void tls_handshake_close(struct socket *sock);
44 
45 u8 tls_get_record_type(const struct sock *sk, const struct cmsghdr *msg);
46 void tls_alert_recv(const struct sock *sk, const struct msghdr *msg,
47 		    u8 *level, u8 *description);
48 
49 #endif /* _NET_HANDSHAKE_H */
50