xref: /openbsd/usr.sbin/smtpd/ssl.h (revision 274d7c50)
1 /*	$OpenBSD: ssl.h,v 1.21 2019/09/18 11:26:30 eric Exp $	*/
2 /*
3  * Copyright (c) 2013 Gilles Chehade <gilles@poolp.org>
4  *
5  * Permission to use, copy, modify, and distribute this software for any
6  * purpose with or without fee is hereby granted, provided that the above
7  * copyright notice and this permission notice appear in all copies.
8  *
9  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13  * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14  * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15  * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16  */
17 
18 #define SSL_CIPHERS		"HIGH:!aNULL:!MD5"
19 #define	SSL_SESSION_TIMEOUT	300
20 
21 struct pki {
22 	char			 pki_name[HOST_NAME_MAX+1];
23 
24 	char			*pki_cert_file;
25 	char			*pki_cert;
26 	off_t			 pki_cert_len;
27 
28 	char			*pki_key_file;
29 	char			*pki_key;
30 	off_t			 pki_key_len;
31 
32 	EVP_PKEY		*pki_pkey;
33 
34 	int			 pki_dhe;
35 };
36 
37 struct ca {
38 	char			 ca_name[HOST_NAME_MAX+1];
39 
40 	char			*ca_cert_file;
41 	char			*ca_cert;
42 	off_t			 ca_cert_len;
43 };
44 
45 
46 /* ssl.c */
47 void		ssl_init(void);
48 int		ssl_setup(SSL_CTX **, struct pki *,
49     int (*)(SSL *, int *, void *), const char *);
50 SSL_CTX	       *ssl_ctx_create(const char *, char *, off_t, const char *);
51 int	        ssl_cmp(struct pki *, struct pki *);
52 char	       *ssl_load_file(const char *, off_t *, mode_t);
53 char	       *ssl_load_key(const char *, off_t *, char *, mode_t, const char *);
54 
55 const char     *ssl_to_text(const SSL *);
56 void		ssl_error(const char *);
57 
58 int		ssl_load_certificate(struct pki *, const char *);
59 int		ssl_load_keyfile(struct pki *, const char *, const char *);
60 int		ssl_load_cafile(struct ca *, const char *);
61 int		ssl_load_pkey(const void *, size_t, char *, off_t,
62 		    X509 **, EVP_PKEY **);
63 int		ssl_ctx_fake_private_key(SSL_CTX *, const void *, size_t,
64 		    char *, off_t, X509 **, EVP_PKEY **);
65 
66 /* ssl_privsep.c */
67 int		ssl_by_mem_ctrl(X509_LOOKUP *, int, const char *, long, char **);
68 
69 /* ssl_verify.c */
70 int ssl_check_name(X509 *, const char *, int *);
71