xref: /freebsd/lib/libsecureboot/openpgp/packet.h (revision cab6a39d7b343596a5823e65c0f7b426551ec22d)
1 /*-
2  * Copyright (c) 2018, Juniper Networks, Inc.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  * 1. Redistributions of source code must retain the above copyright
8  *    notice, this list of conditions and the following disclaimer.
9  * 2. Redistributions in binary form must reproduce the above copyright
10  *    notice, this list of conditions and the following disclaimer in the
11  *    documentation and/or other materials provided with the distribution.
12  *
13  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
14  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
15  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
16  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
17  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
18  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
19  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
23  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24  */
25 /*
26  * $FreeBSD$
27  */
28 
29 #include <sys/queue.h>
30 
31 /*
32  * Structs to represent what we need
33  */
34 
35 typedef struct OpenPGP_user {
36 	char *id;
37 	char *name;
38 } OpenPGP_user;
39 
40 struct OpenPGP_key_ {
41 	char *id;
42 	int sig_alg;
43 	OpenPGP_user *user;
44 #ifdef USE_BEARSSL
45 	br_rsa_public_key *key;
46 #else
47 	EVP_PKEY *key;
48 #endif
49 	LIST_ENTRY(OpenPGP_key_) entries;
50 };
51 
52 typedef struct OpenPGP_key_ OpenPGP_key;
53 
54 typedef struct OpenPGP_sig {
55 	char *key_id;
56 	int sig_type;
57 	int sig_alg;
58 	int hash_alg;
59 	unsigned char *pgpbytes;
60 	size_t pgpbytes_len;
61 	unsigned char *sig;
62 	size_t sig_len;
63 } OpenPGP_sig;
64 
65 void openpgp_trust_add(OpenPGP_key *key);
66 OpenPGP_key * openpgp_trust_get(const char *keyID);
67 OpenPGP_key * load_key_file(const char *kfile);
68 OpenPGP_key * load_key_id(const char *keyID);
69 void initialize(void);
70 char * get_error_string(void);
71 int openpgp_verify(const char *filename, unsigned char *fdata, size_t fbytes,
72     unsigned char *sdata, size_t sbytes, int flags);
73 int openpgp_verify_file(const char *filename, unsigned char *fdata,
74     size_t nbytes);
75 
76 /* packet decoders */
77 #define DECODER_DECL(x)							\
78 	ssize_t decode_##x(int, unsigned char **, size_t, OpenPGP_##x *)
79 
80 DECODER_DECL(user);
81 DECODER_DECL(key);
82 DECODER_DECL(sig);
83