1/*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright (c) 2021 Rick Macklem
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25 * SUCH DAMAGE.
26 */
27
28/*
29 * Functions in rpc.tlscommon.c used by both rpc.tlsservd.c and rpc.tlsclntd.c.
30 */
31int		rpctls_gethost(int s, struct sockaddr *sad,
32		    char *hostip, size_t hostlen);
33int		rpctls_checkhost(struct sockaddr *sad, X509 *cert,
34		    unsigned int wildcard);
35int		rpctls_loadcrlfile(SSL_CTX *ctx);
36void		rpctls_checkcrl(void);
37void		rpctls_verbose_out(const char *fmt, ...);
38void		rpctls_svc_run(void);
39
40/*
41 * A linked list of all current "SSL *"s and socket "fd"s
42 * for kernel RPC TLS connections is maintained.
43 * The "refno" field is a unique 64bit value used to
44 * identify which entry a kernel RPC upcall refers to.
45 */
46LIST_HEAD(ssl_list, ssl_entry);
47struct ssl_entry {
48	LIST_ENTRY(ssl_entry)	next;
49	uint64_t		refno;
50	int			s;
51	bool			shutoff;
52	SSL			*ssl;
53	X509			*cert;
54};
55
56/* Global variables shared between rpc.tlscommon.c and the daemons. */
57extern int			rpctls_debug_level;
58extern bool			rpctls_verbose;
59extern SSL_CTX			*rpctls_ctx;
60extern const char		*rpctls_verify_cafile;
61extern const char		*rpctls_verify_capath;
62extern char			*rpctls_crlfile;
63extern bool			rpctls_cert;
64extern bool			rpctls_gothup;
65extern struct ssl_list		rpctls_ssllist;
66
67