apps/cms.c

   1 /*
   2  * Copyright 2008-2019 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 /* CMS utility function */
  11
  12 #include <stdio.h>
  13 #include <string.h>
  14 #include "apps.h"
  15 #include "progs.h"
  16
  17 #ifndef OPENSSL_NO_CMS
  18
  19 # include <openssl/crypto.h>
  20 # include <openssl/pem.h>
  21 # include <openssl/err.h>
  22 # include <openssl/x509_vfy.h>
  23 # include <openssl/x509v3.h>
  24 # include <openssl/cms.h>
  25
  26 static int save_certs(char *signerfile, STACK_OF(X509) *signers);
  27 static int cms_cb(int ok, X509_STORE_CTX *ctx);
  28 static void receipt_request_print(CMS_ContentInfo *cms);
  29 static CMS_ReceiptRequest *make_receipt_request(STACK_OF(OPENSSL_STRING)
  30                                                 *rr_to, int rr_allorfirst, STACK_OF(OPENSSL_STRING)
  31                                                 *rr_from);
  32 static int cms_set_pkey_param(EVP_PKEY_CTX *pctx,
  33                               STACK_OF(OPENSSL_STRING) *param);
  34
  35 # define SMIME_OP        0x10
  36 # define SMIME_IP        0x20
  37 # define SMIME_SIGNERS   0x40
  38 # define SMIME_ENCRYPT           (1 | SMIME_OP)
  39 # define SMIME_DECRYPT           (2 | SMIME_IP)
  40 # define SMIME_SIGN              (3 | SMIME_OP | SMIME_SIGNERS)
  41 # define SMIME_VERIFY            (4 | SMIME_IP)
  42 # define SMIME_CMSOUT            (5 | SMIME_IP | SMIME_OP)
  43 # define SMIME_RESIGN            (6 | SMIME_IP | SMIME_OP | SMIME_SIGNERS)
  44 # define SMIME_DATAOUT           (7 | SMIME_IP)
  45 # define SMIME_DATA_CREATE       (8 | SMIME_OP)
  46 # define SMIME_DIGEST_VERIFY     (9 | SMIME_IP)
  47 # define SMIME_DIGEST_CREATE     (10 | SMIME_OP)
  48 # define SMIME_UNCOMPRESS        (11 | SMIME_IP)
  49 # define SMIME_COMPRESS          (12 | SMIME_OP)
  50 # define SMIME_ENCRYPTED_DECRYPT (13 | SMIME_IP)
  51 # define SMIME_ENCRYPTED_ENCRYPT (14 | SMIME_OP)
  52 # define SMIME_SIGN_RECEIPT      (15 | SMIME_IP | SMIME_OP)
  53 # define SMIME_VERIFY_RECEIPT    (16 | SMIME_IP)
  54
  55 static int verify_err = 0;
  56
  57 typedef struct cms_key_param_st cms_key_param;
  58
  59 struct cms_key_param_st {
  60     int idx;
  61     STACK_OF(OPENSSL_STRING) *param;
  62     cms_key_param *next;
  63 };
  64
  65 typedef enum OPTION_choice {
  66     OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
  67     OPT_INFORM, OPT_OUTFORM, OPT_IN, OPT_OUT, OPT_ENCRYPT,
  68     OPT_DECRYPT, OPT_SIGN, OPT_CADES, OPT_SIGN_RECEIPT, OPT_RESIGN,
  69     OPT_VERIFY, OPT_VERIFY_RETCODE, OPT_VERIFY_RECEIPT,
  70     OPT_CMSOUT, OPT_DATA_OUT, OPT_DATA_CREATE, OPT_DIGEST_VERIFY,
  71     OPT_DIGEST_CREATE, OPT_COMPRESS, OPT_UNCOMPRESS,
  72     OPT_ED_DECRYPT, OPT_ED_ENCRYPT, OPT_DEBUG_DECRYPT, OPT_TEXT,
  73     OPT_ASCIICRLF, OPT_NOINTERN, OPT_NOVERIFY, OPT_NOCERTS,
  74     OPT_NOATTR, OPT_NODETACH, OPT_NOSMIMECAP, OPT_BINARY, OPT_KEYID,
  75     OPT_NOSIGS, OPT_NO_CONTENT_VERIFY, OPT_NO_ATTR_VERIFY, OPT_INDEF,
  76     OPT_NOINDEF, OPT_CRLFEOL, OPT_NOOUT, OPT_RR_PRINT,
  77     OPT_RR_ALL, OPT_RR_FIRST, OPT_RCTFORM, OPT_CERTFILE, OPT_CAFILE,
  78     OPT_CAPATH, OPT_CASTORE, OPT_NOCAPATH, OPT_NOCAFILE, OPT_NOCASTORE,
  79     OPT_CONTENT, OPT_PRINT,
  80     OPT_SECRETKEY, OPT_SECRETKEYID, OPT_PWRI_PASSWORD, OPT_ECONTENT_TYPE,
  81     OPT_PASSIN, OPT_TO, OPT_FROM, OPT_SUBJECT, OPT_SIGNER, OPT_RECIP,
  82     OPT_CERTSOUT, OPT_MD, OPT_INKEY, OPT_KEYFORM, OPT_KEYOPT, OPT_RR_FROM,
  83     OPT_RR_TO, OPT_AES128_WRAP, OPT_AES192_WRAP, OPT_AES256_WRAP,
  84     OPT_3DES_WRAP, OPT_ENGINE,
  85     OPT_R_ENUM,
  86     OPT_V_ENUM,
  87     OPT_CIPHER
  88 } OPTION_CHOICE;
  89
  90 const OPTIONS cms_options[] = {
  91     {OPT_HELP_STR, 1, '-', "Usage: %s [options] [cert...]\n"},
  92
  93     OPT_SECTION("General"),
  94     {"help", OPT_HELP, '-', "Display this summary"},
  95     {"inform", OPT_INFORM, 'c', "Input format SMIME (default), PEM or DER"},
  96     {"outform", OPT_OUTFORM, 'c',
  97      "Output format SMIME (default), PEM or DER"},
  98     {"in", OPT_IN, '<', "Input file"},
  99     {"out", OPT_OUT, '>', "Output file"},
 100     {"debug_decrypt", OPT_DEBUG_DECRYPT, '-',
 101         "Disable MMA protection and return an error if no recipient found"
 102         " (see documentation)"},
 103     {"stream", OPT_INDEF, '-', "Enable CMS streaming"},
 104     {"indef", OPT_INDEF, '-', "Same as -stream"},
 105     {"noindef", OPT_NOINDEF, '-', "Disable CMS streaming"},
 106     {"crlfeol", OPT_CRLFEOL, '-', "Use CRLF as EOL termination instead of CR only" },
 107     {"CAfile", OPT_CAFILE, '<', "Trusted certificates file"},
 108     {"CApath", OPT_CAPATH, '/', "trusted certificates directory"},
 109     {"CAstore", OPT_CASTORE, ':', "trusted certificates store URI"},
 110     {"no-CAfile", OPT_NOCAFILE, '-',
 111      "Do not load the default certificates file"},
 112     {"no-CApath", OPT_NOCAPATH, '-',
 113      "Do not load certificates from the default certificates directory"},
 114     {"no-CAstore", OPT_NOCASTORE, '-',
 115      "Do not load certificates from the default certificates store"},
 116 # ifndef OPENSSL_NO_ENGINE
 117     {"engine", OPT_ENGINE, 's', "Use engine e, possibly a hardware device"},
 118 # endif
 119
 120     OPT_SECTION("Action"),
 121     {"encrypt", OPT_ENCRYPT, '-', "Encrypt message"},
 122     {"decrypt", OPT_DECRYPT, '-', "Decrypt encrypted message"},
 123     {"sign", OPT_SIGN, '-', "Sign message"},
 124     {"sign_receipt", OPT_SIGN_RECEIPT, '-', "Generate a signed receipt for the message"},
 125     {"resign", OPT_RESIGN, '-', "Resign a signed message"},
 126     {"cades", OPT_CADES, '-', "Include signer certificate digest"},
 127     {"verify", OPT_VERIFY, '-', "Verify signed message"},
 128     {"verify_retcode", OPT_VERIFY_RETCODE, '-',
 129         "Exit non-zero on verification failure"},
 130     {"verify_receipt", OPT_VERIFY_RECEIPT, '<',
 131         "Verify receipts; exit if receipt signatures do not verify"},
 132     {"digest_verify", OPT_DIGEST_VERIFY, '-',
 133         "Verify a CMS \"DigestedData\" object and output it"},
 134     {"digest_create", OPT_DIGEST_CREATE, '-',
 135         "Create a CMS \"DigestedData\" object"},
 136     {"compress", OPT_COMPRESS, '-', "Create a CMS \"CompressedData\" object"},
 137     {"uncompress", OPT_UNCOMPRESS, '-',
 138         "Uncompress a CMS \"CompressedData\" object"},
 139     {"EncryptedData_decrypt", OPT_ED_DECRYPT, '-',
 140         "Decrypt CMS \"EncryptedData\" object using symmetric key"},
 141     {"EncryptedData_encrypt", OPT_ED_ENCRYPT, '-',
 142         "Create CMS \"EncryptedData\" object using symmetric key"},
 143     {"data_out", OPT_DATA_OUT, '-', "Copy CMS \"Data\" object to output"},
 144     {"data_create", OPT_DATA_CREATE, '-', "Create a CMS \"Data\" object"},
 145     {"cmsout", OPT_CMSOUT, '-', "Output CMS structure"},
 146     {"no_content_verify", OPT_NO_CONTENT_VERIFY, '-',
 147         "Do not verify signed content signatures"},
 148     {"no_attr_verify", OPT_NO_ATTR_VERIFY, '-',
 149         "Do not verify signed attribute signatures"},
 150     {"nointern", OPT_NOINTERN, '-',
 151         "Don't search certificates in message for signer"},
 152     {"noverify", OPT_NOVERIFY, '-', "Don't verify signers certificate"},
 153
 154     OPT_SECTION("Formatting"),
 155     {"text", OPT_TEXT, '-', "Include or delete text MIME headers"},
 156     {"asciicrlf", OPT_ASCIICRLF, '-',
 157         "Perform CRLF canonicalisation when signing"},
 158     {"nodetach", OPT_NODETACH, '-', "Use opaque signing"},
 159     {"nosmimecap", OPT_NOSMIMECAP, '-', "Omit the SMIMECapabilities attribute"},
 160     {"noattr", OPT_NOATTR, '-', "Don't include any signed attributes"},
 161     {"binary", OPT_BINARY, '-', "Don't translate message to text"},
 162     {"keyid", OPT_KEYID, '-', "Use subject key identifier"},
 163     {"nosigs", OPT_NOSIGS, '-', "Don't verify message signature"},
 164     {"nocerts", OPT_NOCERTS, '-',
 165      "Don't include signers certificate when signing"},
 166     {"noout", OPT_NOOUT, '-',
 167         "For the -cmsout operation do not output the parsed CMS structure"},
 168     {"receipt_request_print", OPT_RR_PRINT, '-', "Print CMS Receipt Request" },
 169     {"receipt_request_all", OPT_RR_ALL, '-',
 170         "When signing, create a receipt request for all recipients"},
 171     {"receipt_request_first", OPT_RR_FIRST, '-',
 172         "When signing, create a receipt request for first recipient"},
 173     {"rctform", OPT_RCTFORM, 'F', "Receipt file format"},
 174     {"certfile", OPT_CERTFILE, '<', "Other certificates file"},
 175     {"content", OPT_CONTENT, '<',
 176      "Supply or override content for detached signature"},
 177     {"print", OPT_PRINT, '-',
 178      "For the -cmsout operation print out all fields of the CMS structure"},
 179     {"certsout", OPT_CERTSOUT, '>', "Certificate output file"},
 180
 181     OPT_SECTION("Keying"),
 182     {"secretkey", OPT_SECRETKEY, 's',
 183         "Use specified hex-encoded key to decrypt/encrypt recipients or content"},
 184     {"secretkeyid", OPT_SECRETKEYID, 's',
 185         "Identity of the -secretkey for CMS \"KEKRecipientInfo\" object"},
 186     {"pwri_password", OPT_PWRI_PASSWORD, 's',
 187         "Specific password for recipient"},
 188     {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
 189     {"inkey", OPT_INKEY, 's',
 190      "Input private key (if not signer or recipient)"},
 191     {"keyform", OPT_KEYFORM, 'f', "Input private key format (PEM or ENGINE)"},
 192     {"keyopt", OPT_KEYOPT, 's', "Set public key parameters as n:v pairs"},
 193
 194     OPT_SECTION("Mail header"),
 195     {"econtent_type", OPT_ECONTENT_TYPE, 's', "OID for external content"},
 196     {"to", OPT_TO, 's', "To address"},
 197     {"from", OPT_FROM, 's', "From address"},
 198     {"subject", OPT_SUBJECT, 's', "Subject"},
 199     {"signer", OPT_SIGNER, 's', "Signer certificate file"},
 200     {"recip", OPT_RECIP, '<', "Recipient cert file for decryption"},
 201     {"receipt_request_from", OPT_RR_FROM, 's',
 202         "Create signed receipt request with specified email address"},
 203     {"receipt_request_to", OPT_RR_TO, 's',
 204         "Create signed receipt targeted to specified address"},
 205
 206     OPT_SECTION("Encryption"),
 207     {"md", OPT_MD, 's', "Digest algorithm to use when signing or resigning"},
 208     {"", OPT_CIPHER, '-', "Any supported cipher"},
 209
 210     OPT_SECTION("Key-wrapping"),
 211     {"aes128-wrap", OPT_AES128_WRAP, '-', "Use AES128 to wrap key"},
 212     {"aes192-wrap", OPT_AES192_WRAP, '-', "Use AES192 to wrap key"},
 213     {"aes256-wrap", OPT_AES256_WRAP, '-', "Use AES256 to wrap key"},
 214 # ifndef OPENSSL_NO_DES
 215     {"des3-wrap", OPT_3DES_WRAP, '-', "Use 3DES-EDE to wrap key"},
 216 # endif
 217
 218     OPT_R_OPTIONS,
 219     OPT_V_OPTIONS,
 220
 221     OPT_PARAMETERS(),
 222     {"cert", 0, 0, "Recipient certs (optional; used only when encrypting)"},
 223     {NULL}
 224 };
 225
 226 int cms_main(int argc, char **argv)
 227 {
 228     ASN1_OBJECT *econtent_type = NULL;
 229     BIO *in = NULL, *out = NULL, *indata = NULL, *rctin = NULL;
 230     CMS_ContentInfo *cms = NULL, *rcms = NULL;
 231     CMS_ReceiptRequest *rr = NULL;
 232     ENGINE *e = NULL;
 233     EVP_PKEY *key = NULL;
 234     const EVP_CIPHER *cipher = NULL, *wrap_cipher = NULL;
 235     const EVP_MD *sign_md = NULL;
 236     STACK_OF(OPENSSL_STRING) *rr_to = NULL, *rr_from = NULL;
 237     STACK_OF(OPENSSL_STRING) *sksigners = NULL, *skkeys = NULL;
 238     STACK_OF(X509) *encerts = NULL, *other = NULL;
 239     X509 *cert = NULL, *recip = NULL, *signer = NULL;
 240     X509_STORE *store = NULL;
 241     X509_VERIFY_PARAM *vpm = NULL;
 242     char *certfile = NULL, *keyfile = NULL, *contfile = NULL;
 243     const char *CAfile = NULL, *CApath = NULL, *CAstore = NULL;
 244     char *certsoutfile = NULL;
 245     int noCAfile = 0, noCApath = 0, noCAstore = 0;
 246     char *infile = NULL, *outfile = NULL, *rctfile = NULL;
 247     char *passinarg = NULL, *passin = NULL, *signerfile = NULL, *recipfile = NULL;
 248     char *to = NULL, *from = NULL, *subject = NULL, *prog;
 249     cms_key_param *key_first = NULL, *key_param = NULL;
 250     int flags = CMS_DETACHED, noout = 0, print = 0, keyidx = -1, vpmtouched = 0;
 251     int informat = FORMAT_SMIME, outformat = FORMAT_SMIME;
 252     int operation = 0, ret = 1, rr_print = 0, rr_allorfirst = -1;
 253     int verify_retcode = 0, rctformat = FORMAT_SMIME, keyform = FORMAT_PEM;
 254     size_t secret_keylen = 0, secret_keyidlen = 0;
 255     unsigned char *pwri_pass = NULL, *pwri_tmp = NULL;
 256     unsigned char *secret_key = NULL, *secret_keyid = NULL;
 257     long ltmp;
 258     const char *mime_eol = "\n";
 259     OPTION_CHOICE o;
 260
 261     if ((vpm = X509_VERIFY_PARAM_new()) == NULL)
 262         return 1;
 263
 264     prog = opt_init(argc, argv, cms_options);
 265     while ((o = opt_next()) != OPT_EOF) {
 266         switch (o) {
 267         case OPT_EOF:
 268         case OPT_ERR:
 269  opthelp:
 270             BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
 271             goto end;
 272         case OPT_HELP:
 273             opt_help(cms_options);
 274             ret = 0;
 275             goto end;
 276         case OPT_INFORM:
 277             if (!opt_format(opt_arg(), OPT_FMT_PDS, &informat))
 278                 goto opthelp;
 279             break;
 280         case OPT_OUTFORM:
 281             if (!opt_format(opt_arg(), OPT_FMT_PDS, &outformat))
 282                 goto opthelp;
 283             break;
 284         case OPT_OUT:
 285             outfile = opt_arg();
 286             break;
 287         case OPT_ENCRYPT:
 288             operation = SMIME_ENCRYPT;
 289             break;
 290         case OPT_DECRYPT:
 291             operation = SMIME_DECRYPT;
 292             break;
 293         case OPT_SIGN:
 294             operation = SMIME_SIGN;
 295             break;
 296         case OPT_SIGN_RECEIPT:
 297             operation = SMIME_SIGN_RECEIPT;
 298             break;
 299         case OPT_RESIGN:
 300             operation = SMIME_RESIGN;
 301             break;
 302         case OPT_VERIFY:
 303             operation = SMIME_VERIFY;
 304             break;
 305         case OPT_VERIFY_RETCODE:
 306             verify_retcode = 1;
 307             break;
 308         case OPT_VERIFY_RECEIPT:
 309             operation = SMIME_VERIFY_RECEIPT;
 310             rctfile = opt_arg();
 311             break;
 312         case OPT_CMSOUT:
 313             operation = SMIME_CMSOUT;
 314             break;
 315         case OPT_DATA_OUT:
 316             operation = SMIME_DATAOUT;
 317             break;
 318         case OPT_DATA_CREATE:
 319             operation = SMIME_DATA_CREATE;
 320             break;
 321         case OPT_DIGEST_VERIFY:
 322             operation = SMIME_DIGEST_VERIFY;
 323             break;
 324         case OPT_DIGEST_CREATE:
 325             operation = SMIME_DIGEST_CREATE;
 326             break;
 327         case OPT_COMPRESS:
 328             operation = SMIME_COMPRESS;
 329             break;
 330         case OPT_UNCOMPRESS:
 331             operation = SMIME_UNCOMPRESS;
 332             break;
 333         case OPT_ED_DECRYPT:
 334             operation = SMIME_ENCRYPTED_DECRYPT;
 335             break;
 336         case OPT_ED_ENCRYPT:
 337             operation = SMIME_ENCRYPTED_ENCRYPT;
 338             break;
 339         case OPT_DEBUG_DECRYPT:
 340             flags |= CMS_DEBUG_DECRYPT;
 341             break;
 342         case OPT_TEXT:
 343             flags |= CMS_TEXT;
 344             break;
 345         case OPT_ASCIICRLF:
 346             flags |= CMS_ASCIICRLF;
 347             break;
 348         case OPT_NOINTERN:
 349             flags |= CMS_NOINTERN;
 350             break;
 351         case OPT_NOVERIFY:
 352             flags |= CMS_NO_SIGNER_CERT_VERIFY;
 353             break;
 354         case OPT_NOCERTS:
 355             flags |= CMS_NOCERTS;
 356             break;
 357         case OPT_NOATTR:
 358             flags |= CMS_NOATTR;
 359             break;
 360         case OPT_NODETACH:
 361             flags &= ~CMS_DETACHED;
 362             break;
 363         case OPT_NOSMIMECAP:
 364             flags |= CMS_NOSMIMECAP;
 365             break;
 366         case OPT_BINARY:
 367             flags |= CMS_BINARY;
 368             break;
 369         case OPT_CADES:
 370             flags |= CMS_CADES;
 371             break;
 372         case OPT_KEYID:
 373             flags |= CMS_USE_KEYID;
 374             break;
 375         case OPT_NOSIGS:
 376             flags |= CMS_NOSIGS;
 377             break;
 378         case OPT_NO_CONTENT_VERIFY:
 379             flags |= CMS_NO_CONTENT_VERIFY;
 380             break;
 381         case OPT_NO_ATTR_VERIFY:
 382             flags |= CMS_NO_ATTR_VERIFY;
 383             break;
 384         case OPT_INDEF:
 385             flags |= CMS_STREAM;
 386             break;
 387         case OPT_NOINDEF:
 388             flags &= ~CMS_STREAM;
 389             break;
 390         case OPT_CRLFEOL:
 391             mime_eol = "\r\n";
 392             flags |= CMS_CRLFEOL;
 393             break;
 394         case OPT_NOOUT:
 395             noout = 1;
 396             break;
 397         case OPT_RR_PRINT:
 398             rr_print = 1;
 399             break;
 400         case OPT_RR_ALL:
 401             rr_allorfirst = 0;
 402             break;
 403         case OPT_RR_FIRST:
 404             rr_allorfirst = 1;
 405             break;
 406         case OPT_RCTFORM:
 407             if (rctformat == FORMAT_SMIME)
 408                 rcms = SMIME_read_CMS(rctin, NULL);
 409             else if (rctformat == FORMAT_PEM)
 410                 rcms = PEM_read_bio_CMS(rctin, NULL, NULL, NULL);
 411             else if (rctformat == FORMAT_ASN1)
 412                 if (!opt_format(opt_arg(),
 413                                 OPT_FMT_PEMDER | OPT_FMT_SMIME, &rctformat))
 414                     goto opthelp;
 415             break;
 416         case OPT_CERTFILE:
 417             certfile = opt_arg();
 418             break;
 419         case OPT_CAFILE:
 420             CAfile = opt_arg();
 421             break;
 422         case OPT_CAPATH:
 423             CApath = opt_arg();
 424             break;
 425         case OPT_CASTORE:
 426             CAstore = opt_arg();
 427             break;
 428         case OPT_NOCAFILE:
 429             noCAfile = 1;
 430             break;
 431         case OPT_NOCAPATH:
 432             noCApath = 1;
 433             break;
 434         case OPT_NOCASTORE:
 435             noCAstore = 1;
 436             break;
 437         case OPT_IN:
 438             infile = opt_arg();
 439             break;
 440         case OPT_CONTENT:
 441             contfile = opt_arg();
 442             break;
 443         case OPT_RR_FROM:
 444             if (rr_from == NULL
 445                 && (rr_from = sk_OPENSSL_STRING_new_null()) == NULL)
 446                 goto end;
 447             sk_OPENSSL_STRING_push(rr_from, opt_arg());
 448             break;
 449         case OPT_RR_TO:
 450             if (rr_to == NULL
 451                 && (rr_to = sk_OPENSSL_STRING_new_null()) == NULL)
 452                 goto end;
 453             sk_OPENSSL_STRING_push(rr_to, opt_arg());
 454             break;
 455         case OPT_PRINT:
 456             noout = print = 1;
 457             break;
 458         case OPT_SECRETKEY:
 459             if (secret_key != NULL) {
 460                 BIO_printf(bio_err, "Invalid key (supplied twice) %s\n",
 461                            opt_arg());
 462                 goto opthelp;
 463             }
 464             secret_key = OPENSSL_hexstr2buf(opt_arg(), &ltmp);
 465             if (secret_key == NULL) {
 466                 BIO_printf(bio_err, "Invalid key %s\n", opt_arg());
 467                 goto end;
 468             }
 469             secret_keylen = (size_t)ltmp;
 470             break;
 471         case OPT_SECRETKEYID:
 472             if (secret_keyid != NULL) {
 473                 BIO_printf(bio_err, "Invalid id (supplied twice) %s\n",
 474                            opt_arg());
 475                 goto opthelp;
 476             }
 477             secret_keyid = OPENSSL_hexstr2buf(opt_arg(), &ltmp);
 478             if (secret_keyid == NULL) {
 479                 BIO_printf(bio_err, "Invalid id %s\n", opt_arg());
 480                 goto opthelp;
 481             }
 482             secret_keyidlen = (size_t)ltmp;
 483             break;
 484         case OPT_PWRI_PASSWORD:
 485             pwri_pass = (unsigned char *)opt_arg();
 486             break;
 487         case OPT_ECONTENT_TYPE:
 488             if (econtent_type != NULL) {
 489                 BIO_printf(bio_err, "Invalid OID (supplied twice) %s\n",
 490                            opt_arg());
 491                 goto opthelp;
 492             }
 493             econtent_type = OBJ_txt2obj(opt_arg(), 0);
 494             if (econtent_type == NULL) {
 495                 BIO_printf(bio_err, "Invalid OID %s\n", opt_arg());
 496                 goto opthelp;
 497             }
 498             break;
 499         case OPT_ENGINE:
 500             e = setup_engine(opt_arg(), 0);
 501             break;
 502         case OPT_PASSIN:
 503             passinarg = opt_arg();
 504             break;
 505         case OPT_TO:
 506             to = opt_arg();
 507             break;
 508         case OPT_FROM:
 509             from = opt_arg();
 510             break;
 511         case OPT_SUBJECT:
 512             subject = opt_arg();
 513             break;
 514         case OPT_CERTSOUT:
 515             certsoutfile = opt_arg();
 516             break;
 517         case OPT_MD:
 518             if (!opt_md(opt_arg(), &sign_md))
 519                 goto end;
 520             break;
 521         case OPT_SIGNER:
 522             /* If previous -signer argument add signer to list */
 523             if (signerfile != NULL) {
 524                 if (sksigners == NULL
 525                     && (sksigners = sk_OPENSSL_STRING_new_null()) == NULL)
 526                     goto end;
 527                 sk_OPENSSL_STRING_push(sksigners, signerfile);
 528                 if (keyfile == NULL)
 529                     keyfile = signerfile;
 530                 if (skkeys == NULL
 531                     && (skkeys = sk_OPENSSL_STRING_new_null()) == NULL)
 532                     goto end;
 533                 sk_OPENSSL_STRING_push(skkeys, keyfile);
 534                 keyfile = NULL;
 535             }
 536             signerfile = opt_arg();
 537             break;
 538         case OPT_INKEY:
 539             /* If previous -inkey argument add signer to list */
 540             if (keyfile != NULL) {
 541                 if (signerfile == NULL) {
 542                     BIO_puts(bio_err, "Illegal -inkey without -signer\n");
 543                     goto end;
 544                 }
 545                 if (sksigners == NULL
 546                     && (sksigners = sk_OPENSSL_STRING_new_null()) == NULL)
 547                     goto end;
 548                 sk_OPENSSL_STRING_push(sksigners, signerfile);
 549                 signerfile = NULL;
 550                 if (skkeys == NULL
 551                     && (skkeys = sk_OPENSSL_STRING_new_null()) == NULL)
 552                     goto end;
 553                 sk_OPENSSL_STRING_push(skkeys, keyfile);
 554             }
 555             keyfile = opt_arg();
 556             break;
 557         case OPT_KEYFORM:
 558             if (!opt_format(opt_arg(), OPT_FMT_ANY, &keyform))
 559                 goto opthelp;
 560             break;
 561         case OPT_RECIP:
 562             if (operation == SMIME_ENCRYPT) {
 563                 if (encerts == NULL && (encerts = sk_X509_new_null()) == NULL)
 564                     goto end;
 565                 cert = load_cert(opt_arg(), FORMAT_PEM,
 566                                  "recipient certificate file");
 567                 if (cert == NULL)
 568                     goto end;
 569                 sk_X509_push(encerts, cert);
 570                 cert = NULL;
 571             } else {
 572                 recipfile = opt_arg();
 573             }
 574             break;
 575         case OPT_CIPHER:
 576             if (!opt_cipher(opt_unknown(), &cipher))
 577                 goto end;
 578             break;
 579         case OPT_KEYOPT:
 580             keyidx = -1;
 581             if (operation == SMIME_ENCRYPT) {
 582                 if (encerts != NULL)
 583                     keyidx += sk_X509_num(encerts);
 584             } else {
 585                 if (keyfile != NULL || signerfile != NULL)
 586                     keyidx++;
 587                 if (skkeys != NULL)
 588                     keyidx += sk_OPENSSL_STRING_num(skkeys);
 589             }
 590             if (keyidx < 0) {
 591                 BIO_printf(bio_err, "No key specified\n");
 592                 goto opthelp;
 593             }
 594             if (key_param == NULL || key_param->idx != keyidx) {
 595                 cms_key_param *nparam;
 596                 nparam = app_malloc(sizeof(*nparam), "key param buffer");
 597                 nparam->idx = keyidx;
 598                 if ((nparam->param = sk_OPENSSL_STRING_new_null()) == NULL)
 599                     goto end;
 600                 nparam->next = NULL;
 601                 if (key_first == NULL)
 602                     key_first = nparam;
 603                 else
 604                     key_param->next = nparam;
 605                 key_param = nparam;
 606             }
 607             sk_OPENSSL_STRING_push(key_param->param, opt_arg());
 608             break;
 609         case OPT_V_CASES:
 610             if (!opt_verify(o, vpm))
 611                 goto end;
 612             vpmtouched++;
 613             break;
 614         case OPT_R_CASES:
 615             if (!opt_rand(o))
 616                 goto end;
 617             break;
 618         case OPT_3DES_WRAP:
 619 # ifndef OPENSSL_NO_DES
 620             wrap_cipher = EVP_des_ede3_wrap();
 621 # endif
 622             break;
 623         case OPT_AES128_WRAP:
 624             wrap_cipher = EVP_aes_128_wrap();
 625             break;
 626         case OPT_AES192_WRAP:
 627             wrap_cipher = EVP_aes_192_wrap();
 628             break;
 629         case OPT_AES256_WRAP:
 630             wrap_cipher = EVP_aes_256_wrap();
 631             break;
 632         }
 633     }
 634     argc = opt_num_rest();
 635     argv = opt_rest();
 636
 637     if ((rr_allorfirst != -1 || rr_from != NULL) && rr_to == NULL) {
 638         BIO_puts(bio_err, "No Signed Receipts Recipients\n");
 639         goto opthelp;
 640     }
 641
 642     if (!(operation & SMIME_SIGNERS) && (rr_to != NULL || rr_from != NULL)) {
 643         BIO_puts(bio_err, "Signed receipts only allowed with -sign\n");
 644         goto opthelp;
 645     }
 646     if (!(operation & SMIME_SIGNERS) && (skkeys != NULL || sksigners != NULL)) {
 647         BIO_puts(bio_err, "Multiple signers or keys not allowed\n");
 648         goto opthelp;
 649     }
 650
 651     if (flags & CMS_CADES) {
 652         if (flags & CMS_NOATTR) {
 653             BIO_puts(bio_err, "Incompatible options: "
 654                      "CAdES required signed attributes\n");
 655             goto opthelp;
 656         }
 657     }
 658
 659     if (operation & SMIME_SIGNERS) {
 660         if (keyfile != NULL && signerfile == NULL) {
 661             BIO_puts(bio_err, "Illegal -inkey without -signer\n");
 662             goto opthelp;
 663         }
 664         /* Check to see if any final signer needs to be appended */
 665         if (signerfile != NULL) {
 666             if (sksigners == NULL
 667                 && (sksigners = sk_OPENSSL_STRING_new_null()) == NULL)
 668                 goto end;
 669             sk_OPENSSL_STRING_push(sksigners, signerfile);
 670             if (skkeys == NULL && (skkeys = sk_OPENSSL_STRING_new_null()) == NULL)
 671                 goto end;
 672             if (keyfile == NULL)
 673                 keyfile = signerfile;
 674             sk_OPENSSL_STRING_push(skkeys, keyfile);
 675         }
 676         if (sksigners == NULL) {
 677             BIO_printf(bio_err, "No signer certificate specified\n");
 678             goto opthelp;
 679         }
 680         signerfile = NULL;
 681         keyfile = NULL;
 682     } else if (operation == SMIME_DECRYPT) {
 683         if (recipfile == NULL && keyfile == NULL
 684             && secret_key == NULL && pwri_pass == NULL) {
 685             BIO_printf(bio_err,
 686                        "No recipient certificate or key specified\n");
 687             goto opthelp;
 688         }
 689     } else if (operation == SMIME_ENCRYPT) {
 690         if (*argv == NULL && secret_key == NULL
 691             && pwri_pass == NULL && encerts == NULL) {
 692             BIO_printf(bio_err, "No recipient(s) certificate(s) specified\n");
 693             goto opthelp;
 694         }
 695     } else if (!operation) {
 696         BIO_printf(bio_err, "No operation option (-encrypt|-decrypt|-sign|-verify|...) specified.\n");
 697         goto opthelp;
 698     }
 699
 700     if (!app_passwd(passinarg, NULL, &passin, NULL)) {
 701         BIO_printf(bio_err, "Error getting password\n");
 702         goto end;
 703     }
 704
 705     ret = 2;
 706
 707     if (!(operation & SMIME_SIGNERS))
 708         flags &= ~CMS_DETACHED;
 709
 710     if (!(operation & SMIME_OP))
 711         if (flags & CMS_BINARY)
 712             outformat = FORMAT_BINARY;
 713
 714     if (!(operation & SMIME_IP))
 715         if (flags & CMS_BINARY)
 716             informat = FORMAT_BINARY;
 717
 718     if (operation == SMIME_ENCRYPT) {
 719         if (!cipher) {
 720 # ifndef OPENSSL_NO_DES
 721             cipher = EVP_des_ede3_cbc();
 722 # else
 723             BIO_printf(bio_err, "No cipher selected\n");
 724             goto end;
 725 # endif
 726         }
 727
 728         if (secret_key && !secret_keyid) {
 729             BIO_printf(bio_err, "No secret key id\n");
 730             goto end;
 731         }
 732
 733         if (*argv && encerts == NULL)
 734             if ((encerts = sk_X509_new_null()) == NULL)
 735                 goto end;
 736         while (*argv) {
 737             if ((cert = load_cert(*argv, FORMAT_PEM,
 738                                   "recipient certificate file")) == NULL)
 739                 goto end;
 740             sk_X509_push(encerts, cert);
 741             cert = NULL;
 742             argv++;
 743         }
 744     }
 745
 746     if (certfile != NULL) {
 747         if (!load_certs(certfile, &other, FORMAT_PEM, NULL,
 748                         "certificate file")) {
 749             ERR_print_errors(bio_err);
 750             goto end;
 751         }
 752     }
 753
 754     if (recipfile != NULL && (operation == SMIME_DECRYPT)) {
 755         if ((recip = load_cert(recipfile, FORMAT_PEM,
 756                                "recipient certificate file")) == NULL) {
 757             ERR_print_errors(bio_err);
 758             goto end;
 759         }
 760     }
 761
 762     if (operation == SMIME_SIGN_RECEIPT) {
 763         if ((signer = load_cert(signerfile, FORMAT_PEM,
 764                                 "receipt signer certificate file")) == NULL) {
 765             ERR_print_errors(bio_err);
 766             goto end;
 767         }
 768     }
 769
 770     if (operation == SMIME_DECRYPT) {
 771         if (keyfile == NULL)
 772             keyfile = recipfile;
 773     } else if ((operation == SMIME_SIGN) || (operation == SMIME_SIGN_RECEIPT)) {
 774         if (keyfile == NULL)
 775             keyfile = signerfile;
 776     } else {
 777         keyfile = NULL;
 778     }
 779
 780     if (keyfile != NULL) {
 781         key = load_key(keyfile, keyform, 0, passin, e, "signing key file");
 782         if (key == NULL)
 783             goto end;
 784     }
 785
 786     in = bio_open_default(infile, 'r', informat);
 787     if (in == NULL)
 788         goto end;
 789
 790     if (operation & SMIME_IP) {
 791         if (informat == FORMAT_SMIME) {
 792             cms = SMIME_read_CMS(in, &indata);
 793         } else if (informat == FORMAT_PEM) {
 794             cms = PEM_read_bio_CMS(in, NULL, NULL, NULL);
 795         } else if (informat == FORMAT_ASN1) {
 796             cms = d2i_CMS_bio(in, NULL);
 797         } else {
 798             BIO_printf(bio_err, "Bad input format for CMS file\n");
 799             goto end;
 800         }
 801
 802         if (cms == NULL) {
 803             BIO_printf(bio_err, "Error reading S/MIME message\n");
 804             goto end;
 805         }
 806         if (contfile != NULL) {
 807             BIO_free(indata);
 808             if ((indata = BIO_new_file(contfile, "rb")) == NULL) {
 809                 BIO_printf(bio_err, "Can't read content file %s\n", contfile);
 810                 goto end;
 811             }
 812         }
 813         if (certsoutfile != NULL) {
 814             STACK_OF(X509) *allcerts;
 815             allcerts = CMS_get1_certs(cms);
 816             if (!save_certs(certsoutfile, allcerts)) {
 817                 BIO_printf(bio_err,
 818                            "Error writing certs to %s\n", certsoutfile);
 819                 ret = 5;
 820                 goto end;
 821             }
 822             sk_X509_pop_free(allcerts, X509_free);
 823         }
 824     }
 825
 826     if (rctfile != NULL) {
 827         char *rctmode = (rctformat == FORMAT_ASN1) ? "rb" : "r";
 828         if ((rctin = BIO_new_file(rctfile, rctmode)) == NULL) {
 829             BIO_printf(bio_err, "Can't open receipt file %s\n", rctfile);
 830             goto end;
 831         }
 832
 833         if (rctformat == FORMAT_SMIME) {
 834             rcms = SMIME_read_CMS(rctin, NULL);
 835         } else if (rctformat == FORMAT_PEM) {
 836             rcms = PEM_read_bio_CMS(rctin, NULL, NULL, NULL);
 837         } else if (rctformat == FORMAT_ASN1) {
 838             rcms = d2i_CMS_bio(rctin, NULL);
 839         } else {
 840             BIO_printf(bio_err, "Bad input format for receipt\n");
 841             goto end;
 842         }
 843
 844         if (rcms == NULL) {
 845             BIO_printf(bio_err, "Error reading receipt\n");
 846             goto end;
 847         }
 848     }
 849
 850     out = bio_open_default(outfile, 'w', outformat);
 851     if (out == NULL)
 852         goto end;
 853
 854     if ((operation == SMIME_VERIFY) || (operation == SMIME_VERIFY_RECEIPT)) {
 855         if ((store = setup_verify(CAfile, noCAfile, CApath, noCApath,
 856                                   CAstore, noCAstore)) == NULL)
 857             goto end;
 858         X509_STORE_set_verify_cb(store, cms_cb);
 859         if (vpmtouched)
 860             X509_STORE_set1_param(store, vpm);
 861     }
 862
 863     ret = 3;
 864
 865     if (operation == SMIME_DATA_CREATE) {
 866         cms = CMS_data_create(in, flags);
 867     } else if (operation == SMIME_DIGEST_CREATE) {
 868         cms = CMS_digest_create(in, sign_md, flags);
 869     } else if (operation == SMIME_COMPRESS) {
 870         cms = CMS_compress(in, -1, flags);
 871     } else if (operation == SMIME_ENCRYPT) {
 872         int i;
 873         flags |= CMS_PARTIAL;
 874         cms = CMS_encrypt(NULL, in, cipher, flags);
 875         if (cms == NULL)
 876             goto end;
 877         for (i = 0; i < sk_X509_num(encerts); i++) {
 878             CMS_RecipientInfo *ri;
 879             cms_key_param *kparam;
 880             int tflags = flags;
 881             X509 *x = sk_X509_value(encerts, i);
 882             for (kparam = key_first; kparam; kparam = kparam->next) {
 883                 if (kparam->idx == i) {
 884                     tflags |= CMS_KEY_PARAM;
 885                     break;
 886                 }
 887             }
 888             ri = CMS_add1_recipient_cert(cms, x, tflags);
 889             if (ri == NULL)
 890                 goto end;
 891             if (kparam != NULL) {
 892                 EVP_PKEY_CTX *pctx;
 893                 pctx = CMS_RecipientInfo_get0_pkey_ctx(ri);
 894                 if (!cms_set_pkey_param(pctx, kparam->param))
 895                     goto end;
 896             }
 897             if (CMS_RecipientInfo_type(ri) == CMS_RECIPINFO_AGREE
 898                 && wrap_cipher) {
 899                 EVP_CIPHER_CTX *wctx;
 900                 wctx = CMS_RecipientInfo_kari_get0_ctx(ri);
 901                 EVP_EncryptInit_ex(wctx, wrap_cipher, NULL, NULL, NULL);
 902             }
 903         }
 904
 905         if (secret_key != NULL) {
 906             if (!CMS_add0_recipient_key(cms, NID_undef,
 907                                         secret_key, secret_keylen,
 908                                         secret_keyid, secret_keyidlen,
 909                                         NULL, NULL, NULL))
 910                 goto end;
 911             /* NULL these because call absorbs them */
 912             secret_key = NULL;
 913             secret_keyid = NULL;
 914         }
 915         if (pwri_pass != NULL) {
 916             pwri_tmp = (unsigned char *)OPENSSL_strdup((char *)pwri_pass);
 917             if (pwri_tmp == NULL)
 918                 goto end;
 919             if (CMS_add0_recipient_password(cms,
 920                                             -1, NID_undef, NID_undef,
 921                                             pwri_tmp, -1, NULL) == NULL)
 922                 goto end;
 923             pwri_tmp = NULL;
 924         }
 925         if (!(flags & CMS_STREAM)) {
 926             if (!CMS_final(cms, in, NULL, flags))
 927                 goto end;
 928         }
 929     } else if (operation == SMIME_ENCRYPTED_ENCRYPT) {
 930         cms = CMS_EncryptedData_encrypt(in, cipher,
 931                                         secret_key, secret_keylen, flags);
 932
 933     } else if (operation == SMIME_SIGN_RECEIPT) {
 934         CMS_ContentInfo *srcms = NULL;
 935         STACK_OF(CMS_SignerInfo) *sis;
 936         CMS_SignerInfo *si;
 937         sis = CMS_get0_SignerInfos(cms);
 938         if (sis == NULL)
 939             goto end;
 940         si = sk_CMS_SignerInfo_value(sis, 0);
 941         srcms = CMS_sign_receipt(si, signer, key, other, flags);
 942         if (srcms == NULL)
 943             goto end;
 944         CMS_ContentInfo_free(cms);
 945         cms = srcms;
 946     } else if (operation & SMIME_SIGNERS) {
 947         int i;
 948         /*
 949          * If detached data content we enable streaming if S/MIME output
 950          * format.
 951          */
 952         if (operation == SMIME_SIGN) {
 953
 954             if (flags & CMS_DETACHED) {
 955                 if (outformat == FORMAT_SMIME)
 956                     flags |= CMS_STREAM;
 957             }
 958             flags |= CMS_PARTIAL;
 959             cms = CMS_sign(NULL, NULL, other, in, flags);
 960             if (cms == NULL)
 961                 goto end;
 962             if (econtent_type != NULL)
 963                 CMS_set1_eContentType(cms, econtent_type);
 964
 965             if (rr_to != NULL) {
 966                 rr = make_receipt_request(rr_to, rr_allorfirst, rr_from);
 967                 if (rr == NULL) {
 968                     BIO_puts(bio_err,
 969                              "Signed Receipt Request Creation Error\n");
 970                     goto end;
 971                 }
 972             }
 973         } else {
 974             flags |= CMS_REUSE_DIGEST;
 975         }
 976         for (i = 0; i < sk_OPENSSL_STRING_num(sksigners); i++) {
 977             CMS_SignerInfo *si;
 978             cms_key_param *kparam;
 979             int tflags = flags;
 980             signerfile = sk_OPENSSL_STRING_value(sksigners, i);
 981             keyfile = sk_OPENSSL_STRING_value(skkeys, i);
 982
 983             signer = load_cert(signerfile, FORMAT_PEM, "signer certificate");
 984             if (signer == NULL) {
 985                 ret = 2;
 986                 goto end;
 987             }
 988             key = load_key(keyfile, keyform, 0, passin, e, "signing key file");
 989             if (key == NULL) {
 990                 ret = 2;
 991                 goto end;
 992             }
 993             for (kparam = key_first; kparam; kparam = kparam->next) {
 994                 if (kparam->idx == i) {
 995                     tflags |= CMS_KEY_PARAM;
 996                     break;
 997                 }
 998             }
 999             si = CMS_add1_signer(cms, signer, key, sign_md, tflags);
1000             if (si == NULL)
1001                 goto end;
1002             if (kparam != NULL) {
1003                 EVP_PKEY_CTX *pctx;
1004                 pctx = CMS_SignerInfo_get0_pkey_ctx(si);
1005                 if (!cms_set_pkey_param(pctx, kparam->param))
1006                     goto end;
1007             }
1008             if (rr != NULL && !CMS_add1_ReceiptRequest(si, rr))
1009                 goto end;
1010             X509_free(signer);
1011             signer = NULL;
1012             EVP_PKEY_free(key);
1013             key = NULL;
1014         }
1015         /* If not streaming or resigning finalize structure */
1016         if ((operation == SMIME_SIGN) && !(flags & CMS_STREAM)) {
1017             if (!CMS_final(cms, in, NULL, flags))
1018                 goto end;
1019         }
1020     }
1021
1022     if (cms == NULL) {
1023         BIO_printf(bio_err, "Error creating CMS structure\n");
1024         goto end;
1025     }
1026
1027     ret = 4;
1028     if (operation == SMIME_DECRYPT) {
1029         if (flags & CMS_DEBUG_DECRYPT)
1030             CMS_decrypt(cms, NULL, NULL, NULL, NULL, flags);
1031
1032         if (secret_key != NULL) {
1033             if (!CMS_decrypt_set1_key(cms,
1034                                       secret_key, secret_keylen,
1035                                       secret_keyid, secret_keyidlen)) {
1036                 BIO_puts(bio_err, "Error decrypting CMS using secret key\n");
1037                 goto end;
1038             }
1039         }
1040
1041         if (key != NULL) {
1042             if (!CMS_decrypt_set1_pkey(cms, key, recip)) {
1043                 BIO_puts(bio_err, "Error decrypting CMS using private key\n");
1044                 goto end;
1045             }
1046         }
1047
1048         if (pwri_pass != NULL) {
1049             if (!CMS_decrypt_set1_password(cms, pwri_pass, -1)) {
1050                 BIO_puts(bio_err, "Error decrypting CMS using password\n");
1051                 goto end;
1052             }
1053         }
1054
1055         if (!CMS_decrypt(cms, NULL, NULL, indata, out, flags)) {
1056             BIO_printf(bio_err, "Error decrypting CMS structure\n");
1057             goto end;
1058         }
1059     } else if (operation == SMIME_DATAOUT) {
1060         if (!CMS_data(cms, out, flags))
1061             goto end;
1062     } else if (operation == SMIME_UNCOMPRESS) {
1063         if (!CMS_uncompress(cms, indata, out, flags))
1064             goto end;
1065     } else if (operation == SMIME_DIGEST_VERIFY) {
1066         if (CMS_digest_verify(cms, indata, out, flags) > 0) {
1067             BIO_printf(bio_err, "Verification successful\n");
1068         } else {
1069             BIO_printf(bio_err, "Verification failure\n");
1070             goto end;
1071         }
1072     } else if (operation == SMIME_ENCRYPTED_DECRYPT) {
1073         if (!CMS_EncryptedData_decrypt(cms, secret_key, secret_keylen,
1074                                        indata, out, flags))
1075             goto end;
1076     } else if (operation == SMIME_VERIFY) {
1077         if (CMS_verify(cms, other, store, indata, out, flags) > 0) {
1078             BIO_printf(bio_err, "Verification successful\n");
1079         } else {
1080             BIO_printf(bio_err, "Verification failure\n");
1081             if (verify_retcode)
1082                 ret = verify_err + 32;
1083             goto end;
1084         }
1085         if (signerfile != NULL) {
1086             STACK_OF(X509) *signers;
1087             signers = CMS_get0_signers(cms);
1088             if (!save_certs(signerfile, signers)) {
1089                 BIO_printf(bio_err,
1090                            "Error writing signers to %s\n", signerfile);
1091                 ret = 5;
1092                 goto end;
1093             }
1094             sk_X509_free(signers);
1095         }
1096         if (rr_print)
1097             receipt_request_print(cms);
1098
1099     } else if (operation == SMIME_VERIFY_RECEIPT) {
1100         if (CMS_verify_receipt(rcms, cms, other, store, flags) > 0) {
1101             BIO_printf(bio_err, "Verification successful\n");
1102         } else {
1103             BIO_printf(bio_err, "Verification failure\n");
1104             goto end;
1105         }
1106     } else {
1107         if (noout) {
1108             if (print)
1109                 CMS_ContentInfo_print_ctx(out, cms, 0, NULL);
1110         } else if (outformat == FORMAT_SMIME) {
1111             if (to)
1112                 BIO_printf(out, "To: %s%s", to, mime_eol);
1113             if (from)
1114                 BIO_printf(out, "From: %s%s", from, mime_eol);
1115             if (subject)
1116                 BIO_printf(out, "Subject: %s%s", subject, mime_eol);
1117             if (operation == SMIME_RESIGN)
1118                 ret = SMIME_write_CMS(out, cms, indata, flags);
1119             else
1120                 ret = SMIME_write_CMS(out, cms, in, flags);
1121         } else if (outformat == FORMAT_PEM) {
1122             ret = PEM_write_bio_CMS_stream(out, cms, in, flags);
1123         } else if (outformat == FORMAT_ASN1) {
1124             ret = i2d_CMS_bio_stream(out, cms, in, flags);
1125         } else {
1126             BIO_printf(bio_err, "Bad output format for CMS file\n");
1127             goto end;
1128         }
1129         if (ret <= 0) {
1130             ret = 6;
1131             goto end;
1132         }
1133     }
1134     ret = 0;
1135  end:
1136     if (ret)
1137         ERR_print_errors(bio_err);
1138     sk_X509_pop_free(encerts, X509_free);
1139     sk_X509_pop_free(other, X509_free);
1140     X509_VERIFY_PARAM_free(vpm);
1141     sk_OPENSSL_STRING_free(sksigners);
1142     sk_OPENSSL_STRING_free(skkeys);
1143     OPENSSL_free(secret_key);
1144     OPENSSL_free(secret_keyid);
1145     OPENSSL_free(pwri_tmp);
1146     ASN1_OBJECT_free(econtent_type);
1147     CMS_ReceiptRequest_free(rr);
1148     sk_OPENSSL_STRING_free(rr_to);
1149     sk_OPENSSL_STRING_free(rr_from);
1150     for (key_param = key_first; key_param;) {
1151         cms_key_param *tparam;
1152         sk_OPENSSL_STRING_free(key_param->param);
1153         tparam = key_param->next;
1154         OPENSSL_free(key_param);
1155         key_param = tparam;
1156     }
1157     X509_STORE_free(store);
1158     X509_free(cert);
1159     X509_free(recip);
1160     X509_free(signer);
1161     EVP_PKEY_free(key);
1162     CMS_ContentInfo_free(cms);
1163     CMS_ContentInfo_free(rcms);
1164     release_engine(e);
1165     BIO_free(rctin);
1166     BIO_free(in);
1167     BIO_free(indata);
1168     BIO_free_all(out);
1169     OPENSSL_free(passin);
1170     return ret;
1171 }
1172
1173 static int save_certs(char *signerfile, STACK_OF(X509) *signers)
1174 {
1175     int i;
1176     BIO *tmp;
1177     if (signerfile == NULL)
1178         return 1;
1179     tmp = BIO_new_file(signerfile, "w");
1180     if (tmp == NULL)
1181         return 0;
1182     for (i = 0; i < sk_X509_num(signers); i++)
1183         PEM_write_bio_X509(tmp, sk_X509_value(signers, i));
1184     BIO_free(tmp);
1185     return 1;
1186 }
1187
1188 /* Minimal callback just to output policy info (if any) */
1189
1190 static int cms_cb(int ok, X509_STORE_CTX *ctx)
1191 {
1192     int error;
1193
1194     error = X509_STORE_CTX_get_error(ctx);
1195
1196     verify_err = error;
1197
1198     if ((error != X509_V_ERR_NO_EXPLICIT_POLICY)
1199         && ((error != X509_V_OK) || (ok != 2)))
1200         return ok;
1201
1202     policies_print(ctx);
1203
1204     return ok;
1205
1206 }
1207
1208 static void gnames_stack_print(STACK_OF(GENERAL_NAMES) *gns)
1209 {
1210     STACK_OF(GENERAL_NAME) *gens;
1211     GENERAL_NAME *gen;
1212     int i, j;
1213
1214     for (i = 0; i < sk_GENERAL_NAMES_num(gns); i++) {
1215         gens = sk_GENERAL_NAMES_value(gns, i);
1216         for (j = 0; j < sk_GENERAL_NAME_num(gens); j++) {
1217             gen = sk_GENERAL_NAME_value(gens, j);
1218             BIO_puts(bio_err, "    ");
1219             GENERAL_NAME_print(bio_err, gen);
1220             BIO_puts(bio_err, "\n");
1221         }
1222     }
1223     return;
1224 }
1225
1226 static void receipt_request_print(CMS_ContentInfo *cms)
1227 {
1228     STACK_OF(CMS_SignerInfo) *sis;
1229     CMS_SignerInfo *si;
1230     CMS_ReceiptRequest *rr;
1231     int allorfirst;
1232     STACK_OF(GENERAL_NAMES) *rto, *rlist;
1233     ASN1_STRING *scid;
1234     int i, rv;
1235     sis = CMS_get0_SignerInfos(cms);
1236     for (i = 0; i < sk_CMS_SignerInfo_num(sis); i++) {
1237         si = sk_CMS_SignerInfo_value(sis, i);
1238         rv = CMS_get1_ReceiptRequest(si, &rr);
1239         BIO_printf(bio_err, "Signer %d:\n", i + 1);
1240         if (rv == 0) {
1241             BIO_puts(bio_err, "  No Receipt Request\n");
1242         } else if (rv < 0) {
1243             BIO_puts(bio_err, "  Receipt Request Parse Error\n");
1244             ERR_print_errors(bio_err);
1245         } else {
1246             const char *id;
1247             int idlen;
1248             CMS_ReceiptRequest_get0_values(rr, &scid, &allorfirst,
1249                                            &rlist, &rto);
1250             BIO_puts(bio_err, "  Signed Content ID:\n");
1251             idlen = ASN1_STRING_length(scid);
1252             id = (const char *)ASN1_STRING_get0_data(scid);
1253             BIO_dump_indent(bio_err, id, idlen, 4);
1254             BIO_puts(bio_err, "  Receipts From");
1255             if (rlist != NULL) {
1256                 BIO_puts(bio_err, " List:\n");
1257                 gnames_stack_print(rlist);
1258             } else if (allorfirst == 1) {
1259                 BIO_puts(bio_err, ": First Tier\n");
1260             } else if (allorfirst == 0) {
1261                 BIO_puts(bio_err, ": All\n");
1262             } else {
1263                 BIO_printf(bio_err, " Unknown (%d)\n", allorfirst);
1264             }
1265             BIO_puts(bio_err, "  Receipts To:\n");
1266             gnames_stack_print(rto);
1267         }
1268         CMS_ReceiptRequest_free(rr);
1269     }
1270 }
1271
1272 static STACK_OF(GENERAL_NAMES) *make_names_stack(STACK_OF(OPENSSL_STRING) *ns)
1273 {
1274     int i;
1275     STACK_OF(GENERAL_NAMES) *ret;
1276     GENERAL_NAMES *gens = NULL;
1277     GENERAL_NAME *gen = NULL;
1278     ret = sk_GENERAL_NAMES_new_null();
1279     if (ret == NULL)
1280         goto err;
1281     for (i = 0; i < sk_OPENSSL_STRING_num(ns); i++) {
1282         char *str = sk_OPENSSL_STRING_value(ns, i);
1283         gen = a2i_GENERAL_NAME(NULL, NULL, NULL, GEN_EMAIL, str, 0);
1284         if (gen == NULL)
1285             goto err;
1286         gens = GENERAL_NAMES_new();
1287         if (gens == NULL)
1288             goto err;
1289         if (!sk_GENERAL_NAME_push(gens, gen))
1290             goto err;
1291         gen = NULL;
1292         if (!sk_GENERAL_NAMES_push(ret, gens))
1293             goto err;
1294         gens = NULL;
1295     }
1296
1297     return ret;
1298
1299  err:
1300     sk_GENERAL_NAMES_pop_free(ret, GENERAL_NAMES_free);
1301     GENERAL_NAMES_free(gens);
1302     GENERAL_NAME_free(gen);
1303     return NULL;
1304 }
1305
1306 static CMS_ReceiptRequest *make_receipt_request(STACK_OF(OPENSSL_STRING)
1307                                                 *rr_to, int rr_allorfirst, STACK_OF(OPENSSL_STRING)
1308                                                 *rr_from)
1309 {
1310     STACK_OF(GENERAL_NAMES) *rct_to = NULL, *rct_from = NULL;
1311     CMS_ReceiptRequest *rr;
1312     rct_to = make_names_stack(rr_to);
1313     if (rct_to == NULL)
1314         goto err;
1315     if (rr_from != NULL) {
1316         rct_from = make_names_stack(rr_from);
1317         if (rct_from == NULL)
1318             goto err;
1319     } else {
1320         rct_from = NULL;
1321     }
1322     rr = CMS_ReceiptRequest_create0(NULL, -1, rr_allorfirst, rct_from,
1323                                     rct_to);
1324     return rr;
1325  err:
1326     sk_GENERAL_NAMES_pop_free(rct_to, GENERAL_NAMES_free);
1327     return NULL;
1328 }
1329
1330 static int cms_set_pkey_param(EVP_PKEY_CTX *pctx,
1331                               STACK_OF(OPENSSL_STRING) *param)
1332 {
1333     char *keyopt;
1334     int i;
1335     if (sk_OPENSSL_STRING_num(param) <= 0)
1336         return 1;
1337     for (i = 0; i < sk_OPENSSL_STRING_num(param); i++) {
1338         keyopt = sk_OPENSSL_STRING_value(param, i);
1339         if (pkey_ctrl_string(pctx, keyopt) <= 0) {
1340             BIO_printf(bio_err, "parameter error \"%s\"\n", keyopt);
1341             ERR_print_errors(bio_err);
1342             return 0;
1343         }
1344     }
1345     return 1;
1346 }
1347
1348 #endif