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