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source: vbox/trunk/src/libs/openssl-3.1.5/apps/crl2pkcs7.c

Last change on this file was 104078, checked in by vboxsync, 2 months ago

openssl-3.1.5: Applied and adjusted our OpenSSL changes to 3.1.4. bugref:10638
File size: 6.4 KB
Line 
1/*
2 * Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10#include <stdio.h>
11#include <string.h>
12#include <sys/types.h>
13#include "apps.h"
14#include "progs.h"
15#include <openssl/err.h>
16#include <openssl/evp.h>
17#include <openssl/x509.h>
18#include <openssl/pkcs7.h>
19#include <openssl/pem.h>
20#include <openssl/objects.h>
21
22static int add_certs_from_file(STACK_OF(X509) *stack, char *certfile);
23
24typedef enum OPTION_choice {
25 OPT_COMMON,
26 OPT_INFORM, OPT_OUTFORM, OPT_IN, OPT_OUT, OPT_NOCRL, OPT_CERTFILE,
27 OPT_PROV_ENUM
28} OPTION_CHOICE;
29
30const OPTIONS crl2pkcs7_options[] = {
31 OPT_SECTION("General"),
32 {"help", OPT_HELP, '-', "Display this summary"},
33
34 OPT_SECTION("Input"),
35 {"in", OPT_IN, '<', "Input file"},
36 {"inform", OPT_INFORM, 'F', "Input format - DER or PEM"},
37 {"nocrl", OPT_NOCRL, '-', "No crl to load, just certs from '-certfile'"},
38 {"certfile", OPT_CERTFILE, '<',
39 "File of chain of certs to a trusted CA; can be repeated"},
40
41 OPT_SECTION("Output"),
42 {"out", OPT_OUT, '>', "Output file"},
43 {"outform", OPT_OUTFORM, 'F', "Output format - DER or PEM"},
44
45 OPT_PROV_OPTIONS,
46 {NULL}
47};
48
49int crl2pkcs7_main(int argc, char **argv)
50{
51 BIO *in = NULL, *out = NULL;
52 PKCS7 *p7 = NULL;
53 PKCS7_SIGNED *p7s = NULL;
54 STACK_OF(OPENSSL_STRING) *certflst = NULL;
55 STACK_OF(X509) *cert_stack = NULL;
56 STACK_OF(X509_CRL) *crl_stack = NULL;
57 X509_CRL *crl = NULL;
58 char *infile = NULL, *outfile = NULL, *prog, *certfile;
59 int i = 0, informat = FORMAT_PEM, outformat = FORMAT_PEM, ret = 1, nocrl =
60 0;
61 OPTION_CHOICE o;
62
63 prog = opt_init(argc, argv, crl2pkcs7_options);
64 while ((o = opt_next()) != OPT_EOF) {
65 switch (o) {
66 case OPT_EOF:
67 case OPT_ERR:
68 opthelp:
69 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
70 goto end;
71 case OPT_HELP:
72 opt_help(crl2pkcs7_options);
73 ret = 0;
74 goto end;
75 case OPT_INFORM:
76 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat))
77 goto opthelp;
78 break;
79 case OPT_OUTFORM:
80 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
81 goto opthelp;
82 break;
83 case OPT_IN:
84 infile = opt_arg();
85 break;
86 case OPT_OUT:
87 outfile = opt_arg();
88 break;
89 case OPT_NOCRL:
90 nocrl = 1;
91 break;
92 case OPT_CERTFILE:
93 if ((certflst == NULL)
94 && (certflst = sk_OPENSSL_STRING_new_null()) == NULL)
95 goto end;
96 if (!sk_OPENSSL_STRING_push(certflst, opt_arg()))
97 goto end;
98 break;
99 case OPT_PROV_CASES:
100 if (!opt_provider(o))
101 goto end;
102 break;
103 }
104 }
105
106 /* No remaining args. */
107 argc = opt_num_rest();
108 if (argc != 0)
109 goto opthelp;
110
111 if (!nocrl) {
112 in = bio_open_default(infile, 'r', informat);
113 if (in == NULL)
114 goto end;
115
116 if (informat == FORMAT_ASN1)
117 crl = d2i_X509_CRL_bio(in, NULL);
118 else if (informat == FORMAT_PEM)
119 crl = PEM_read_bio_X509_CRL(in, NULL, NULL, NULL);
120 if (crl == NULL) {
121 BIO_printf(bio_err, "unable to load CRL\n");
122 ERR_print_errors(bio_err);
123 goto end;
124 }
125 }
126
127 if ((p7 = PKCS7_new()) == NULL)
128 goto end;
129 if ((p7s = PKCS7_SIGNED_new()) == NULL)
130 goto end;
131 p7->type = OBJ_nid2obj(NID_pkcs7_signed);
132 p7->d.sign = p7s;
133 p7s->contents->type = OBJ_nid2obj(NID_pkcs7_data);
134
135 if (!ASN1_INTEGER_set(p7s->version, 1))
136 goto end;
137
138 if (crl != NULL) {
139 if ((crl_stack = sk_X509_CRL_new_null()) == NULL)
140 goto end;
141 p7s->crl = crl_stack;
142 sk_X509_CRL_push(crl_stack, crl);
143 crl = NULL; /* now part of p7 for OPENSSL_freeing */
144 }
145
146 if (certflst != NULL) {
147 if ((cert_stack = sk_X509_new_null()) == NULL)
148 goto end;
149 p7s->cert = cert_stack;
150
151 for (i = 0; i < sk_OPENSSL_STRING_num(certflst); i++) {
152 certfile = sk_OPENSSL_STRING_value(certflst, i);
153 if (add_certs_from_file(cert_stack, certfile) < 0) {
154 BIO_printf(bio_err, "error loading certificates\n");
155 ERR_print_errors(bio_err);
156 goto end;
157 }
158 }
159 }
160
161 out = bio_open_default(outfile, 'w', outformat);
162 if (out == NULL)
163 goto end;
164
165 if (outformat == FORMAT_ASN1)
166 i = i2d_PKCS7_bio(out, p7);
167 else if (outformat == FORMAT_PEM)
168 i = PEM_write_bio_PKCS7(out, p7);
169 if (!i) {
170 BIO_printf(bio_err, "unable to write pkcs7 object\n");
171 ERR_print_errors(bio_err);
172 goto end;
173 }
174 ret = 0;
175 end:
176 sk_OPENSSL_STRING_free(certflst);
177 BIO_free(in);
178 BIO_free_all(out);
179 PKCS7_free(p7);
180 X509_CRL_free(crl);
181
182 return ret;
183}
184
185/*-
186 *----------------------------------------------------------------------
187 * int add_certs_from_file
188 *
189 * Read a list of certificates to be checked from a file.
190 *
191 * Results:
192 * number of certs added if successful, -1 if not.
193 *----------------------------------------------------------------------
194 */
195static int add_certs_from_file(STACK_OF(X509) *stack, char *certfile)
196{
197 BIO *in = NULL;
198 int count = 0;
199 int ret = -1;
200 STACK_OF(X509_INFO) *sk = NULL;
201 X509_INFO *xi;
202
203 in = BIO_new_file(certfile, "r");
204 if (in == NULL) {
205 BIO_printf(bio_err, "error opening the file, %s\n", certfile);
206 goto end;
207 }
208
209 /* This loads from a file, a stack of x509/crl/pkey sets */
210 sk = PEM_X509_INFO_read_bio(in, NULL, NULL, NULL);
211 if (sk == NULL) {
212 BIO_printf(bio_err, "error reading the file, %s\n", certfile);
213 goto end;
214 }
215
216 /* scan over it and pull out the CRL's */
217 while (sk_X509_INFO_num(sk)) {
218 xi = sk_X509_INFO_shift(sk);
219 if (xi->x509 != NULL) {
220 sk_X509_push(stack, xi->x509);
221 xi->x509 = NULL;
222 count++;
223 }
224 X509_INFO_free(xi);
225 }
226
227 ret = count;
228 end:
229 /* never need to OPENSSL_free x */
230 BIO_free(in);
231 sk_X509_INFO_free(sk);
232 return ret;
233}
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