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