1 /*
2 * Copyright 1995-2022 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 <stdlib.h>
12 #include <string.h>
13 #include <time.h>
14 #include "apps.h"
15 #include "progs.h"
16 #include <openssl/err.h>
17 #include <openssl/objects.h>
18 #include <openssl/evp.h>
19 #include <openssl/x509.h>
20 #include <openssl/pkcs7.h>
21 #include <openssl/pem.h>
22
23 typedef enum OPTION_choice {
24 OPT_COMMON,
25 OPT_INFORM,
26 OPT_OUTFORM,
27 OPT_IN,
28 OPT_OUT,
29 OPT_NOOUT,
30 OPT_TEXT,
31 OPT_PRINT,
32 OPT_PRINT_CERTS,
33 OPT_QUIET,
34 OPT_ENGINE,
35 OPT_PROV_ENUM
36 } OPTION_CHOICE;
37
38 const OPTIONS pkcs7_options[] = {
39 OPT_SECTION("General"),
40 { "help", OPT_HELP, '-', "Display this summary" },
41 #ifndef OPENSSL_NO_ENGINE
42 { "engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device" },
43 #endif
44
45 OPT_SECTION("Input"),
46 { "in", OPT_IN, '<', "Input file" },
47 { "inform", OPT_INFORM, 'F', "Input format - DER or PEM" },
48
49 OPT_SECTION("Output"),
50 { "outform", OPT_OUTFORM, 'F', "Output format - DER or PEM" },
51 { "out", OPT_OUT, '>', "Output file" },
52 { "noout", OPT_NOOUT, '-', "Don't output encoded data" },
53 { "text", OPT_TEXT, '-', "Print full details of certificates" },
54 { "print", OPT_PRINT, '-', "Print out all fields of the PKCS7 structure" },
55 { "print_certs", OPT_PRINT_CERTS, '-',
56 "Print_certs print any certs or crl in the input" },
57 { "quiet", OPT_QUIET, '-',
58 "When used with -print_certs, it produces a cleaner output" },
59
60 OPT_PROV_OPTIONS,
61 { NULL }
62 };
63
pkcs7_main(int argc,char ** argv)64 int pkcs7_main(int argc, char **argv)
65 {
66 ENGINE *e = NULL;
67 PKCS7 *p7 = NULL, *p7i;
68 BIO *in = NULL, *out = NULL;
69 int informat = FORMAT_PEM, outformat = FORMAT_PEM;
70 char *infile = NULL, *outfile = NULL, *prog;
71 int i, print_certs = 0, text = 0, noout = 0, p7_print = 0, quiet = 0, ret = 1;
72 OPTION_CHOICE o;
73 OSSL_LIB_CTX *libctx = app_get0_libctx();
74
75 prog = opt_init(argc, argv, pkcs7_options);
76 while ((o = opt_next()) != OPT_EOF) {
77 switch (o) {
78 case OPT_EOF:
79 case OPT_ERR:
80 opthelp:
81 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
82 goto end;
83 case OPT_HELP:
84 opt_help(pkcs7_options);
85 ret = 0;
86 goto end;
87 case OPT_INFORM:
88 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat))
89 goto opthelp;
90 break;
91 case OPT_OUTFORM:
92 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
93 goto opthelp;
94 break;
95 case OPT_IN:
96 infile = opt_arg();
97 break;
98 case OPT_OUT:
99 outfile = opt_arg();
100 break;
101 case OPT_NOOUT:
102 noout = 1;
103 break;
104 case OPT_TEXT:
105 text = 1;
106 break;
107 case OPT_PRINT:
108 p7_print = 1;
109 break;
110 case OPT_PRINT_CERTS:
111 print_certs = 1;
112 break;
113 case OPT_QUIET:
114 quiet = 1;
115 break;
116 case OPT_ENGINE:
117 e = setup_engine(opt_arg(), 0);
118 break;
119 case OPT_PROV_CASES:
120 if (!opt_provider(o))
121 goto end;
122 break;
123 }
124 }
125
126 /* No extra arguments. */
127 if (!opt_check_rest_arg(NULL))
128 goto opthelp;
129
130 in = bio_open_default(infile, 'r', informat);
131 if (in == NULL)
132 goto end;
133
134 p7 = PKCS7_new_ex(libctx, app_get0_propq());
135 if (p7 == NULL) {
136 BIO_printf(bio_err, "unable to allocate PKCS7 object\n");
137 ERR_print_errors(bio_err);
138 goto end;
139 }
140
141 if (informat == FORMAT_ASN1)
142 p7i = d2i_PKCS7_bio(in, &p7);
143 else
144 p7i = PEM_read_bio_PKCS7(in, &p7, NULL, NULL);
145 if (p7i == NULL) {
146 BIO_printf(bio_err, "unable to load PKCS7 object\n");
147 ERR_print_errors(bio_err);
148 goto end;
149 }
150
151 out = bio_open_default(outfile, 'w', outformat);
152 if (out == NULL)
153 goto end;
154
155 if (p7_print)
156 PKCS7_print_ctx(out, p7, 0, NULL);
157
158 if (print_certs) {
159 STACK_OF(X509) *certs = NULL;
160 STACK_OF(X509_CRL) *crls = NULL;
161
162 i = OBJ_obj2nid(p7->type);
163 switch (i) {
164 case NID_pkcs7_signed:
165 if (p7->d.sign != NULL) {
166 certs = p7->d.sign->cert;
167 crls = p7->d.sign->crl;
168 }
169 break;
170 case NID_pkcs7_signedAndEnveloped:
171 if (p7->d.signed_and_enveloped != NULL) {
172 certs = p7->d.signed_and_enveloped->cert;
173 crls = p7->d.signed_and_enveloped->crl;
174 }
175 break;
176 default:
177 break;
178 }
179
180 if (certs != NULL) {
181 X509 *x;
182
183 for (i = 0; i < sk_X509_num(certs); i++) {
184 x = sk_X509_value(certs, i);
185 if (text)
186 X509_print(out, x);
187 else if (!quiet)
188 dump_cert_text(out, x);
189
190 if (!noout)
191 PEM_write_bio_X509(out, x);
192 BIO_puts(out, "\n");
193 }
194 }
195 if (crls != NULL) {
196 X509_CRL *crl;
197
198 for (i = 0; i < sk_X509_CRL_num(crls); i++) {
199 crl = sk_X509_CRL_value(crls, i);
200
201 X509_CRL_print_ex(out, crl, get_nameopt());
202
203 if (!noout)
204 PEM_write_bio_X509_CRL(out, crl);
205 BIO_puts(out, "\n");
206 }
207 }
208
209 ret = 0;
210 goto end;
211 }
212
213 if (!noout) {
214 if (outformat == FORMAT_ASN1)
215 i = i2d_PKCS7_bio(out, p7);
216 else
217 i = PEM_write_bio_PKCS7(out, p7);
218
219 if (!i) {
220 BIO_printf(bio_err, "unable to write pkcs7 object\n");
221 ERR_print_errors(bio_err);
222 goto end;
223 }
224 }
225 ret = 0;
226 end:
227 PKCS7_free(p7);
228 release_engine(e);
229 BIO_free(in);
230 BIO_free_all(out);
231 return ret;
232 }
233