xref: /freebsd/lib/libsecureboot/openpgp/packet.h (revision 42b38843)
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  */
27 
28 #include <sys/queue.h>
29 
30 /*
31  * Structs to represent what we need
32  */
33 
34 typedef struct OpenPGP_user {
35 	char *id;
36 	char *name;
37 } OpenPGP_user;
38 
39 struct OpenPGP_key_ {
40 	char *id;
41 	int sig_alg;
42 	OpenPGP_user *user;
43 #ifdef USE_BEARSSL
44 	br_rsa_public_key *key;
45 #else
46 	EVP_PKEY *key;
47 #endif
48 	LIST_ENTRY(OpenPGP_key_) entries;
49 };
50 
51 typedef struct OpenPGP_key_ OpenPGP_key;
52 
53 typedef struct OpenPGP_sig {
54 	char *key_id;
55 	int sig_type;
56 	int sig_alg;
57 	int hash_alg;
58 	unsigned char *pgpbytes;
59 	size_t pgpbytes_len;
60 	unsigned char *sig;
61 	size_t sig_len;
62 } OpenPGP_sig;
63 
64 void openpgp_trust_add(OpenPGP_key *key);
65 OpenPGP_key * openpgp_trust_get(const char *keyID);
66 OpenPGP_key * load_key_file(const char *kfile);
67 OpenPGP_key * load_key_id(const char *keyID);
68 void initialize(void);
69 char * get_error_string(void);
70 int openpgp_verify(const char *filename, unsigned char *fdata, size_t fbytes,
71     unsigned char *sdata, size_t sbytes, int flags);
72 int openpgp_verify_file(const char *filename, unsigned char *fdata,
73     size_t nbytes);
74 
75 /* packet decoders */
76 #define DECODER_DECL(x)							\
77 	ssize_t decode_##x(int, unsigned char **, size_t, OpenPGP_##x *)
78 
79 DECODER_DECL(user);
80 DECODER_DECL(key);
81 DECODER_DECL(sig);
82