1/*
2 * Copyright 2008-2023 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#include <openssl/crypto.h>
18#include <openssl/pem.h>
19#include <openssl/err.h>
20#include <openssl/x509_vfy.h>
21#include <openssl/x509v3.h>
22#include <openssl/cms.h>
23
24static int save_certs(char *signerfile, STACK_OF(X509) *signers);
25static int cms_cb(int ok, X509_STORE_CTX *ctx);
26static void receipt_request_print(CMS_ContentInfo *cms);
27static CMS_ReceiptRequest
28*make_receipt_request(STACK_OF(OPENSSL_STRING) *rr_to, int rr_allorfirst,
29                      STACK_OF(OPENSSL_STRING) *rr_from);
30static int cms_set_pkey_param(EVP_PKEY_CTX *pctx,
31                              STACK_OF(OPENSSL_STRING) *param);
32
33#define SMIME_OP                0x100
34#define SMIME_IP                0x200
35#define SMIME_SIGNERS           0x400
36#define SMIME_ENCRYPT           (1 | SMIME_OP)
37#define SMIME_DECRYPT           (2 | SMIME_IP)
38#define SMIME_SIGN              (3 | SMIME_OP | SMIME_SIGNERS)
39#define SMIME_VERIFY            (4 | SMIME_IP)
40#define SMIME_RESIGN            (5 | SMIME_IP | SMIME_OP | SMIME_SIGNERS)
41#define SMIME_SIGN_RECEIPT      (6 | SMIME_IP | SMIME_OP)
42#define SMIME_VERIFY_RECEIPT    (7 | SMIME_IP)
43#define SMIME_DIGEST_CREATE     (8 | SMIME_OP)
44#define SMIME_DIGEST_VERIFY     (9 | SMIME_IP)
45#define SMIME_COMPRESS          (10 | SMIME_OP)
46#define SMIME_UNCOMPRESS        (11 | SMIME_IP)
47#define SMIME_ENCRYPTED_ENCRYPT (12 | SMIME_OP)
48#define SMIME_ENCRYPTED_DECRYPT (13 | SMIME_IP)
49#define SMIME_DATA_CREATE       (14 | SMIME_OP)
50#define SMIME_DATA_OUT          (15 | SMIME_IP)
51#define SMIME_CMSOUT            (16 | SMIME_IP | SMIME_OP)
52
53static int verify_err = 0;
54
55typedef struct cms_key_param_st cms_key_param;
56
57struct cms_key_param_st {
58    int idx;
59    STACK_OF(OPENSSL_STRING) *param;
60    cms_key_param *next;
61};
62
63typedef enum OPTION_choice {
64    OPT_COMMON,
65    OPT_INFORM, OPT_OUTFORM, OPT_IN, OPT_OUT, OPT_ENCRYPT,
66    OPT_DECRYPT, OPT_SIGN, OPT_CADES, OPT_SIGN_RECEIPT, OPT_RESIGN,
67    OPT_VERIFY, OPT_VERIFY_RETCODE, OPT_VERIFY_RECEIPT,
68    OPT_CMSOUT, OPT_DATA_OUT, OPT_DATA_CREATE, OPT_DIGEST_VERIFY,
69    OPT_DIGEST_CREATE, OPT_COMPRESS, OPT_UNCOMPRESS,
70    OPT_ED_DECRYPT, OPT_ED_ENCRYPT, OPT_DEBUG_DECRYPT, OPT_TEXT,
71    OPT_ASCIICRLF, OPT_NOINTERN, OPT_NOVERIFY, OPT_NOCERTS,
72    OPT_NOATTR, OPT_NODETACH, OPT_NOSMIMECAP, OPT_BINARY, OPT_KEYID,
73    OPT_NOSIGS, OPT_NO_CONTENT_VERIFY, OPT_NO_ATTR_VERIFY, OPT_INDEF,
74    OPT_NOINDEF, OPT_CRLFEOL, OPT_NOOUT, OPT_RR_PRINT,
75    OPT_RR_ALL, OPT_RR_FIRST, OPT_RCTFORM, OPT_CERTFILE, OPT_CAFILE,
76    OPT_CAPATH, OPT_CASTORE, OPT_NOCAPATH, OPT_NOCAFILE, OPT_NOCASTORE,
77    OPT_CONTENT, OPT_PRINT, OPT_NAMEOPT,
78    OPT_SECRETKEY, OPT_SECRETKEYID, OPT_PWRI_PASSWORD, OPT_ECONTENT_TYPE,
79    OPT_PASSIN, OPT_TO, OPT_FROM, OPT_SUBJECT, OPT_SIGNER, OPT_RECIP,
80    OPT_CERTSOUT, OPT_MD, OPT_INKEY, OPT_KEYFORM, OPT_KEYOPT, OPT_RR_FROM,
81    OPT_RR_TO, OPT_AES128_WRAP, OPT_AES192_WRAP, OPT_AES256_WRAP,
82    OPT_3DES_WRAP, OPT_WRAP, OPT_ENGINE,
83    OPT_R_ENUM,
84    OPT_PROV_ENUM, OPT_CONFIG,
85    OPT_V_ENUM,
86    OPT_CIPHER,
87    OPT_ORIGINATOR
88} OPTION_CHOICE;
89
90const OPTIONS cms_options[] = {
91    {OPT_HELP_STR, 1, '-', "Usage: %s [options] [cert...]\n"},
92    {"help", OPT_HELP, '-', "Display this summary"},
93
94    OPT_SECTION("General"),
95    {"in", OPT_IN, '<', "Input file"},
96    {"out", OPT_OUT, '>', "Output file"},
97    OPT_CONFIG_OPTION,
98
99    OPT_SECTION("Operation"),
100    {"encrypt", OPT_ENCRYPT, '-', "Encrypt message"},
101    {"decrypt", OPT_DECRYPT, '-', "Decrypt encrypted message"},
102    {"sign", OPT_SIGN, '-', "Sign message"},
103    {"verify", OPT_VERIFY, '-', "Verify signed message"},
104    {"resign", OPT_RESIGN, '-', "Resign a signed message"},
105    {"sign_receipt", OPT_SIGN_RECEIPT, '-',
106     "Generate a signed receipt for a message"},
107    {"verify_receipt", OPT_VERIFY_RECEIPT, '<',
108     "Verify receipts; exit if receipt signatures do not verify"},
109    {"digest_create", OPT_DIGEST_CREATE, '-',
110     "Create a CMS \"DigestedData\" object"},
111    {"digest_verify", OPT_DIGEST_VERIFY, '-',
112     "Verify a CMS \"DigestedData\" object and output it"},
113    {"compress", OPT_COMPRESS, '-', "Create a CMS \"CompressedData\" object"},
114    {"uncompress", OPT_UNCOMPRESS, '-',
115     "Uncompress a CMS \"CompressedData\" object"},
116    {"EncryptedData_encrypt", OPT_ED_ENCRYPT, '-',
117     "Create CMS \"EncryptedData\" object using symmetric key"},
118    {"EncryptedData_decrypt", OPT_ED_DECRYPT, '-',
119     "Decrypt CMS \"EncryptedData\" object using symmetric key"},
120    {"data_create", OPT_DATA_CREATE, '-', "Create a CMS \"Data\" object"},
121    {"data_out", OPT_DATA_OUT, '-', "Copy CMS \"Data\" object to output"},
122    {"cmsout", OPT_CMSOUT, '-', "Output CMS structure"},
123
124    OPT_SECTION("File format"),
125    {"inform", OPT_INFORM, 'c', "Input format SMIME (default), PEM or DER"},
126    {"outform", OPT_OUTFORM, 'c',
127     "Output format SMIME (default), PEM or DER"},
128    {"rctform", OPT_RCTFORM, 'F', "Receipt file format"},
129    {"stream", OPT_INDEF, '-', "Enable CMS streaming"},
130    {"indef", OPT_INDEF, '-', "Same as -stream"},
131    {"noindef", OPT_NOINDEF, '-', "Disable CMS streaming"},
132    {"binary", OPT_BINARY, '-',
133     "Treat input as binary: do not translate to canonical form"},
134    {"crlfeol", OPT_CRLFEOL, '-',
135     "Use CRLF as EOL termination instead of CR only" },
136    {"asciicrlf", OPT_ASCIICRLF, '-',
137     "Perform CRLF canonicalisation when signing"},
138
139    OPT_SECTION("Keys and passwords"),
140    {"pwri_password", OPT_PWRI_PASSWORD, 's',
141     "Specific password for recipient"},
142    {"secretkey", OPT_SECRETKEY, 's',
143     "Use specified hex-encoded key to decrypt/encrypt recipients or content"},
144    {"secretkeyid", OPT_SECRETKEYID, 's',
145     "Identity of the -secretkey for CMS \"KEKRecipientInfo\" object"},
146    {"inkey", OPT_INKEY, 's',
147     "Input private key (if not signer or recipient)"},
148    {"passin", OPT_PASSIN, 's', "Input file pass phrase source"},
149    {"keyopt", OPT_KEYOPT, 's', "Set public key parameters as n:v pairs"},
150    {"keyform", OPT_KEYFORM, 'f',
151     "Input private key format (ENGINE, other values ignored)"},
152#ifndef OPENSSL_NO_ENGINE
153    {"engine", OPT_ENGINE, 's', "Use engine e, possibly a hardware device"},
154#endif
155    OPT_PROV_OPTIONS,
156    OPT_R_OPTIONS,
157
158    OPT_SECTION("Encryption and decryption"),
159    {"originator", OPT_ORIGINATOR, 's', "Originator certificate file"},
160    {"recip", OPT_RECIP, '<', "Recipient cert file"},
161    {"cert...", OPT_PARAM, '.',
162     "Recipient certs (optional; used only when encrypting)"},
163    {"", OPT_CIPHER, '-',
164     "The encryption algorithm to use (any supported cipher)"},
165    {"wrap", OPT_WRAP, 's',
166     "Key wrap algorithm to use when encrypting with key agreement"},
167    {"aes128-wrap", OPT_AES128_WRAP, '-', "Use AES128 to wrap key"},
168    {"aes192-wrap", OPT_AES192_WRAP, '-', "Use AES192 to wrap key"},
169    {"aes256-wrap", OPT_AES256_WRAP, '-', "Use AES256 to wrap key"},
170    {"des3-wrap", OPT_3DES_WRAP, '-', "Use 3DES-EDE to wrap key"},
171    {"debug_decrypt", OPT_DEBUG_DECRYPT, '-',
172     "Disable MMA protection, return error if no recipient found (see doc)"},
173
174    OPT_SECTION("Signing"),
175    {"md", OPT_MD, 's', "Digest algorithm to use"},
176    {"signer", OPT_SIGNER, 's', "Signer certificate input file"},
177    {"certfile", OPT_CERTFILE, '<', "Other certificates file"},
178    {"cades", OPT_CADES, '-',
179     "Include signingCertificate attribute (CAdES-BES)"},
180    {"nodetach", OPT_NODETACH, '-', "Use opaque signing"},
181    {"nocerts", OPT_NOCERTS, '-',
182     "Don't include signer's certificate when signing"},
183    {"noattr", OPT_NOATTR, '-', "Don't include any signed attributes"},
184    {"nosmimecap", OPT_NOSMIMECAP, '-', "Omit the SMIMECapabilities attribute"},
185    {"receipt_request_all", OPT_RR_ALL, '-',
186     "When signing, create a receipt request for all recipients"},
187    {"receipt_request_first", OPT_RR_FIRST, '-',
188     "When signing, create a receipt request for first recipient"},
189    {"receipt_request_from", OPT_RR_FROM, 's',
190     "Create signed receipt request with specified email address"},
191    {"receipt_request_to", OPT_RR_TO, 's',
192     "Create signed receipt targeted to specified address"},
193
194    OPT_SECTION("Verification"),
195    {"signer", OPT_DUP, 's', "Signer certificate(s) output file"},
196    {"content", OPT_CONTENT, '<',
197     "Supply or override content for detached signature"},
198    {"no_content_verify", OPT_NO_CONTENT_VERIFY, '-',
199     "Do not verify signed content signatures"},
200    {"no_attr_verify", OPT_NO_ATTR_VERIFY, '-',
201     "Do not verify signed attribute signatures"},
202    {"nosigs", OPT_NOSIGS, '-', "Don't verify message signature"},
203    {"noverify", OPT_NOVERIFY, '-', "Don't verify signers certificate"},
204    {"nointern", OPT_NOINTERN, '-',
205     "Don't search certificates in message for signer"},
206    {"cades", OPT_DUP, '-', "Check signingCertificate (CAdES-BES)"},
207    {"verify_retcode", OPT_VERIFY_RETCODE, '-',
208     "Exit non-zero on verification failure"},
209    {"CAfile", OPT_CAFILE, '<', "Trusted certificates file"},
210    {"CApath", OPT_CAPATH, '/', "Trusted certificates directory"},
211    {"CAstore", OPT_CASTORE, ':', "Trusted certificates store URI"},
212    {"no-CAfile", OPT_NOCAFILE, '-',
213     "Do not load the default certificates file"},
214    {"no-CApath", OPT_NOCAPATH, '-',
215     "Do not load certificates from the default certificates directory"},
216    {"no-CAstore", OPT_NOCASTORE, '-',
217     "Do not load certificates from the default certificates store"},
218
219    OPT_SECTION("Output"),
220    {"keyid", OPT_KEYID, '-', "Use subject key identifier"},
221    {"econtent_type", OPT_ECONTENT_TYPE, 's', "OID for external content"},
222    {"text", OPT_TEXT, '-', "Include or delete text MIME headers"},
223    {"certsout", OPT_CERTSOUT, '>', "Certificate output file"},
224    {"to", OPT_TO, 's', "To address"},
225    {"from", OPT_FROM, 's', "From address"},
226    {"subject", OPT_SUBJECT, 's', "Subject"},
227
228    OPT_SECTION("Printing"),
229    {"noout", OPT_NOOUT, '-',
230     "For the -cmsout operation do not output the parsed CMS structure"},
231    {"print", OPT_PRINT, '-',
232     "For the -cmsout operation print out all fields of the CMS structure"},
233    {"nameopt", OPT_NAMEOPT, 's',
234     "For the -print option specifies various strings printing options"},
235    {"receipt_request_print", OPT_RR_PRINT, '-', "Print CMS Receipt Request" },
236
237    OPT_V_OPTIONS,
238    {NULL}
239};
240
241static CMS_ContentInfo *load_content_info(int informat, BIO *in, int flags,
242                                          BIO **indata, const char *name)
243{
244    CMS_ContentInfo *ret, *ci;
245
246    ret = CMS_ContentInfo_new_ex(app_get0_libctx(), app_get0_propq());
247    if (ret == NULL) {
248        BIO_printf(bio_err, "Error allocating CMS_contentinfo\n");
249        return NULL;
250    }
251    switch (informat) {
252    case FORMAT_SMIME:
253        ci = SMIME_read_CMS_ex(in, flags, indata, &ret);
254        break;
255    case FORMAT_PEM:
256        ci = PEM_read_bio_CMS(in, &ret, NULL, NULL);
257        break;
258    case FORMAT_ASN1:
259        ci = d2i_CMS_bio(in, &ret);
260        break;
261    default:
262        BIO_printf(bio_err, "Bad input format for %s\n", name);
263        goto err;
264    }
265    if (ci == NULL) {
266        BIO_printf(bio_err, "Error reading %s Content Info\n", name);
267        goto err;
268    }
269    return ret;
270 err:
271    CMS_ContentInfo_free(ret);
272    return NULL;
273}
274
275int cms_main(int argc, char **argv)
276{
277    CONF *conf = NULL;
278    ASN1_OBJECT *econtent_type = NULL;
279    BIO *in = NULL, *out = NULL, *indata = NULL, *rctin = NULL;
280    CMS_ContentInfo *cms = NULL, *rcms = NULL;
281    CMS_ReceiptRequest *rr = NULL;
282    ENGINE *e = NULL;
283    EVP_PKEY *key = NULL;
284    EVP_CIPHER *cipher = NULL, *wrap_cipher = NULL;
285    EVP_MD *sign_md = NULL;
286    STACK_OF(OPENSSL_STRING) *rr_to = NULL, *rr_from = NULL;
287    STACK_OF(OPENSSL_STRING) *sksigners = NULL, *skkeys = NULL;
288    STACK_OF(X509) *encerts = sk_X509_new_null(), *other = NULL;
289    X509 *cert = NULL, *recip = NULL, *signer = NULL, *originator = NULL;
290    X509_STORE *store = NULL;
291    X509_VERIFY_PARAM *vpm = X509_VERIFY_PARAM_new();
292    char *certfile = NULL, *keyfile = NULL, *contfile = NULL;
293    const char *CAfile = NULL, *CApath = NULL, *CAstore = NULL;
294    char *certsoutfile = NULL, *digestname = NULL, *wrapname = NULL;
295    int noCAfile = 0, noCApath = 0, noCAstore = 0;
296    char *infile = NULL, *outfile = NULL, *rctfile = NULL;
297    char *passinarg = NULL, *passin = NULL, *signerfile = NULL;
298    char *originatorfile = NULL, *recipfile = NULL, *ciphername = NULL;
299    char *to = NULL, *from = NULL, *subject = NULL, *prog;
300    cms_key_param *key_first = NULL, *key_param = NULL;
301    int flags = CMS_DETACHED, binary_files = 0;
302    int noout = 0, print = 0, keyidx = -1, vpmtouched = 0;
303    int informat = FORMAT_SMIME, outformat = FORMAT_SMIME;
304    int operation = 0, ret = 1, rr_print = 0, rr_allorfirst = -1;
305    int verify_retcode = 0, rctformat = FORMAT_SMIME, keyform = FORMAT_UNDEF;
306    size_t secret_keylen = 0, secret_keyidlen = 0;
307    unsigned char *pwri_pass = NULL, *pwri_tmp = NULL;
308    unsigned char *secret_key = NULL, *secret_keyid = NULL;
309    long ltmp;
310    const char *mime_eol = "\n";
311    OPTION_CHOICE o;
312    OSSL_LIB_CTX *libctx = app_get0_libctx();
313
314    if (encerts == NULL || vpm == NULL)
315        goto end;
316
317    prog = opt_init(argc, argv, cms_options);
318    while ((o = opt_next()) != OPT_EOF) {
319        switch (o) {
320        case OPT_EOF:
321        case OPT_ERR:
322 opthelp:
323            BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
324            goto end;
325        case OPT_HELP:
326            opt_help(cms_options);
327            ret = 0;
328            goto end;
329        case OPT_INFORM:
330            if (!opt_format(opt_arg(), OPT_FMT_PDS, &informat))
331                goto opthelp;
332            break;
333        case OPT_OUTFORM:
334            if (!opt_format(opt_arg(), OPT_FMT_PDS, &outformat))
335                goto opthelp;
336            break;
337        case OPT_OUT:
338            outfile = opt_arg();
339            break;
340
341        case OPT_ENCRYPT:
342            operation = SMIME_ENCRYPT;
343            break;
344        case OPT_DECRYPT:
345            operation = SMIME_DECRYPT;
346            break;
347        case OPT_SIGN:
348            operation = SMIME_SIGN;
349            break;
350        case OPT_VERIFY:
351            operation = SMIME_VERIFY;
352            break;
353        case OPT_RESIGN:
354            operation = SMIME_RESIGN;
355            break;
356        case OPT_SIGN_RECEIPT:
357            operation = SMIME_SIGN_RECEIPT;
358            break;
359        case OPT_VERIFY_RECEIPT:
360            operation = SMIME_VERIFY_RECEIPT;
361            rctfile = opt_arg();
362            break;
363        case OPT_VERIFY_RETCODE:
364            verify_retcode = 1;
365            break;
366        case OPT_DIGEST_CREATE:
367            operation = SMIME_DIGEST_CREATE;
368            break;
369        case OPT_DIGEST_VERIFY:
370            operation = SMIME_DIGEST_VERIFY;
371            break;
372        case OPT_COMPRESS:
373            operation = SMIME_COMPRESS;
374            break;
375        case OPT_UNCOMPRESS:
376            operation = SMIME_UNCOMPRESS;
377            break;
378        case OPT_ED_ENCRYPT:
379            operation = SMIME_ENCRYPTED_ENCRYPT;
380            break;
381        case OPT_ED_DECRYPT:
382            operation = SMIME_ENCRYPTED_DECRYPT;
383            break;
384        case OPT_DATA_CREATE:
385            operation = SMIME_DATA_CREATE;
386            break;
387        case OPT_DATA_OUT:
388            operation = SMIME_DATA_OUT;
389            break;
390        case OPT_CMSOUT:
391            operation = SMIME_CMSOUT;
392            break;
393
394        case OPT_DEBUG_DECRYPT:
395            flags |= CMS_DEBUG_DECRYPT;
396            break;
397        case OPT_TEXT:
398            flags |= CMS_TEXT;
399            break;
400        case OPT_ASCIICRLF:
401            flags |= CMS_ASCIICRLF;
402            break;
403        case OPT_NOINTERN:
404            flags |= CMS_NOINTERN;
405            break;
406        case OPT_NOVERIFY:
407            flags |= CMS_NO_SIGNER_CERT_VERIFY;
408            break;
409        case OPT_NOCERTS:
410            flags |= CMS_NOCERTS;
411            break;
412        case OPT_NOATTR:
413            flags |= CMS_NOATTR;
414            break;
415        case OPT_NODETACH:
416            flags &= ~CMS_DETACHED;
417            break;
418        case OPT_NOSMIMECAP:
419            flags |= CMS_NOSMIMECAP;
420            break;
421        case OPT_BINARY:
422            flags |= CMS_BINARY;
423            break;
424        case OPT_CADES:
425            flags |= CMS_CADES;
426            break;
427        case OPT_KEYID:
428            flags |= CMS_USE_KEYID;
429            break;
430        case OPT_NOSIGS:
431            flags |= CMS_NOSIGS;
432            break;
433        case OPT_NO_CONTENT_VERIFY:
434            flags |= CMS_NO_CONTENT_VERIFY;
435            break;
436        case OPT_NO_ATTR_VERIFY:
437            flags |= CMS_NO_ATTR_VERIFY;
438            break;
439        case OPT_INDEF:
440            flags |= CMS_STREAM;
441            break;
442        case OPT_NOINDEF:
443            flags &= ~CMS_STREAM;
444            break;
445        case OPT_CRLFEOL:
446            mime_eol = "\r\n";
447            flags |= CMS_CRLFEOL;
448            break;
449        case OPT_NOOUT:
450            noout = 1;
451            break;
452        case OPT_RR_PRINT:
453            rr_print = 1;
454            break;
455        case OPT_RR_ALL:
456            rr_allorfirst = 0;
457            break;
458        case OPT_RR_FIRST:
459            rr_allorfirst = 1;
460            break;
461        case OPT_RCTFORM:
462            if (!opt_format(opt_arg(),
463                            OPT_FMT_PEMDER | OPT_FMT_SMIME, &rctformat))
464                goto opthelp;
465            break;
466        case OPT_CERTFILE:
467            certfile = opt_arg();
468            break;
469        case OPT_CAFILE:
470            CAfile = opt_arg();
471            break;
472        case OPT_CAPATH:
473            CApath = opt_arg();
474            break;
475        case OPT_CASTORE:
476            CAstore = opt_arg();
477            break;
478        case OPT_NOCAFILE:
479            noCAfile = 1;
480            break;
481        case OPT_NOCAPATH:
482            noCApath = 1;
483            break;
484        case OPT_NOCASTORE:
485            noCAstore = 1;
486            break;
487        case OPT_IN:
488            infile = opt_arg();
489            break;
490        case OPT_CONTENT:
491            contfile = opt_arg();
492            break;
493        case OPT_RR_FROM:
494            if (rr_from == NULL
495                && (rr_from = sk_OPENSSL_STRING_new_null()) == NULL)
496                goto end;
497            sk_OPENSSL_STRING_push(rr_from, opt_arg());
498            break;
499        case OPT_RR_TO:
500            if (rr_to == NULL
501                && (rr_to = sk_OPENSSL_STRING_new_null()) == NULL)
502                goto end;
503            sk_OPENSSL_STRING_push(rr_to, opt_arg());
504            break;
505        case OPT_PRINT:
506            noout = print = 1;
507            break;
508        case OPT_NAMEOPT:
509            if (!set_nameopt(opt_arg()))
510                goto opthelp;
511            break;
512        case OPT_SECRETKEY:
513            if (secret_key != NULL) {
514                BIO_printf(bio_err, "Invalid key (supplied twice) %s\n",
515                           opt_arg());
516                goto opthelp;
517            }
518            secret_key = OPENSSL_hexstr2buf(opt_arg(), &ltmp);
519            if (secret_key == NULL) {
520                BIO_printf(bio_err, "Invalid key %s\n", opt_arg());
521                goto end;
522            }
523            secret_keylen = (size_t)ltmp;
524            break;
525        case OPT_SECRETKEYID:
526            if (secret_keyid != NULL) {
527                BIO_printf(bio_err, "Invalid id (supplied twice) %s\n",
528                           opt_arg());
529                goto opthelp;
530            }
531            secret_keyid = OPENSSL_hexstr2buf(opt_arg(), &ltmp);
532            if (secret_keyid == NULL) {
533                BIO_printf(bio_err, "Invalid id %s\n", opt_arg());
534                goto opthelp;
535            }
536            secret_keyidlen = (size_t)ltmp;
537            break;
538        case OPT_PWRI_PASSWORD:
539            pwri_pass = (unsigned char *)opt_arg();
540            break;
541        case OPT_ECONTENT_TYPE:
542            if (econtent_type != NULL) {
543                BIO_printf(bio_err, "Invalid OID (supplied twice) %s\n",
544                           opt_arg());
545                goto opthelp;
546            }
547            econtent_type = OBJ_txt2obj(opt_arg(), 0);
548            if (econtent_type == NULL) {
549                BIO_printf(bio_err, "Invalid OID %s\n", opt_arg());
550                goto opthelp;
551            }
552            break;
553        case OPT_ENGINE:
554            e = setup_engine(opt_arg(), 0);
555            break;
556        case OPT_PASSIN:
557            passinarg = opt_arg();
558            break;
559        case OPT_TO:
560            to = opt_arg();
561            break;
562        case OPT_FROM:
563            from = opt_arg();
564            break;
565        case OPT_SUBJECT:
566            subject = opt_arg();
567            break;
568        case OPT_CERTSOUT:
569            certsoutfile = opt_arg();
570            break;
571        case OPT_MD:
572            digestname = opt_arg();
573            break;
574        case OPT_SIGNER:
575            /* If previous -signer argument add signer to list */
576            if (signerfile != NULL) {
577                if (sksigners == NULL
578                    && (sksigners = sk_OPENSSL_STRING_new_null()) == NULL)
579                    goto end;
580                sk_OPENSSL_STRING_push(sksigners, signerfile);
581                if (keyfile == NULL)
582                    keyfile = signerfile;
583                if (skkeys == NULL
584                    && (skkeys = sk_OPENSSL_STRING_new_null()) == NULL)
585                    goto end;
586                sk_OPENSSL_STRING_push(skkeys, keyfile);
587                keyfile = NULL;
588            }
589            signerfile = opt_arg();
590            break;
591        case OPT_ORIGINATOR:
592            originatorfile = opt_arg();
593            break;
594        case OPT_INKEY:
595            /* If previous -inkey argument add signer to list */
596            if (keyfile != NULL) {
597                if (signerfile == NULL) {
598                    BIO_puts(bio_err, "Illegal -inkey without -signer\n");
599                    goto end;
600                }
601                if (sksigners == NULL
602                    && (sksigners = sk_OPENSSL_STRING_new_null()) == NULL)
603                    goto end;
604                sk_OPENSSL_STRING_push(sksigners, signerfile);
605                signerfile = NULL;
606                if (skkeys == NULL
607                    && (skkeys = sk_OPENSSL_STRING_new_null()) == NULL)
608                    goto end;
609                sk_OPENSSL_STRING_push(skkeys, keyfile);
610            }
611            keyfile = opt_arg();
612            break;
613        case OPT_KEYFORM:
614            if (!opt_format(opt_arg(), OPT_FMT_ANY, &keyform))
615                goto opthelp;
616            break;
617        case OPT_RECIP:
618            if (operation == SMIME_ENCRYPT) {
619                cert = load_cert(opt_arg(), FORMAT_UNDEF,
620                                 "recipient certificate file");
621                if (cert == NULL)
622                    goto end;
623                if (!sk_X509_push(encerts, cert))
624                    goto end;
625                cert = NULL;
626            } else {
627                recipfile = opt_arg();
628            }
629            break;
630        case OPT_CIPHER:
631            ciphername = opt_unknown();
632            break;
633        case OPT_KEYOPT:
634            keyidx = -1;
635            if (operation == SMIME_ENCRYPT) {
636                if (sk_X509_num(encerts) > 0)
637                    keyidx += sk_X509_num(encerts);
638            } else {
639                if (keyfile != NULL || signerfile != NULL)
640                    keyidx++;
641                if (skkeys != NULL)
642                    keyidx += sk_OPENSSL_STRING_num(skkeys);
643            }
644            if (keyidx < 0) {
645                BIO_printf(bio_err, "No key specified\n");
646                goto opthelp;
647            }
648            if (key_param == NULL || key_param->idx != keyidx) {
649                cms_key_param *nparam;
650                nparam = app_malloc(sizeof(*nparam), "key param buffer");
651                if ((nparam->param = sk_OPENSSL_STRING_new_null()) == NULL) {
652                    OPENSSL_free(nparam);
653                    goto end;
654                }
655                nparam->idx = keyidx;
656                nparam->next = NULL;
657                if (key_first == NULL)
658                    key_first = nparam;
659                else
660                    key_param->next = nparam;
661                key_param = nparam;
662            }
663            sk_OPENSSL_STRING_push(key_param->param, opt_arg());
664            break;
665        case OPT_V_CASES:
666            if (!opt_verify(o, vpm))
667                goto end;
668            vpmtouched++;
669            break;
670        case OPT_R_CASES:
671            if (!opt_rand(o))
672                goto end;
673            break;
674        case OPT_PROV_CASES:
675            if (!opt_provider(o))
676                goto end;
677            break;
678        case OPT_CONFIG:
679            conf = app_load_config_modules(opt_arg());
680            if (conf == NULL)
681                goto end;
682            break;
683        case OPT_WRAP:
684            wrapname = opt_arg();
685            break;
686        case OPT_AES128_WRAP:
687        case OPT_AES192_WRAP:
688        case OPT_AES256_WRAP:
689        case OPT_3DES_WRAP:
690            wrapname = opt_flag() + 1;
691            break;
692        }
693    }
694    if (!app_RAND_load())
695        goto end;
696
697    if (digestname != NULL) {
698        if (!opt_md(digestname, &sign_md))
699            goto end;
700    }
701    if (ciphername != NULL) {
702        if (!opt_cipher_any(ciphername, &cipher))
703            goto end;
704    }
705    if (wrapname != NULL) {
706        if (!opt_cipher_any(wrapname, &wrap_cipher))
707            goto end;
708    }
709
710    /* Remaining args are files to process. */
711    argc = opt_num_rest();
712    argv = opt_rest();
713
714    if ((rr_allorfirst != -1 || rr_from != NULL) && rr_to == NULL) {
715        BIO_puts(bio_err, "No Signed Receipts Recipients\n");
716        goto opthelp;
717    }
718
719    if (!(operation & SMIME_SIGNERS) && (rr_to != NULL || rr_from != NULL)) {
720        BIO_puts(bio_err, "Signed receipts only allowed with -sign\n");
721        goto opthelp;
722    }
723    if (!(operation & SMIME_SIGNERS) && (skkeys != NULL || sksigners != NULL)) {
724        BIO_puts(bio_err, "Multiple signers or keys not allowed\n");
725        goto opthelp;
726    }
727
728    if ((flags & CMS_CADES) != 0) {
729        if ((flags & CMS_NOATTR) != 0) {
730            BIO_puts(bio_err, "Incompatible options: "
731                     "CAdES requires signed attributes\n");
732            goto opthelp;
733        }
734        if (operation == SMIME_VERIFY
735                && (flags & (CMS_NO_SIGNER_CERT_VERIFY | CMS_NO_ATTR_VERIFY)) != 0) {
736            BIO_puts(bio_err, "Incompatible options: CAdES validation requires"
737                     " certs and signed attributes validations\n");
738            goto opthelp;
739        }
740    }
741
742    if (operation & SMIME_SIGNERS) {
743        if (keyfile != NULL && signerfile == NULL) {
744            BIO_puts(bio_err, "Illegal -inkey without -signer\n");
745            goto opthelp;
746        }
747        /* Check to see if any final signer needs to be appended */
748        if (signerfile != NULL) {
749            if (sksigners == NULL
750                && (sksigners = sk_OPENSSL_STRING_new_null()) == NULL)
751                goto end;
752            sk_OPENSSL_STRING_push(sksigners, signerfile);
753            if (skkeys == NULL && (skkeys = sk_OPENSSL_STRING_new_null()) == NULL)
754                goto end;
755            if (keyfile == NULL)
756                keyfile = signerfile;
757            sk_OPENSSL_STRING_push(skkeys, keyfile);
758        }
759        if (sksigners == NULL) {
760            BIO_printf(bio_err, "No signer certificate specified\n");
761            goto opthelp;
762        }
763        signerfile = NULL;
764        keyfile = NULL;
765    } else if (operation == SMIME_DECRYPT) {
766        if (recipfile == NULL && keyfile == NULL
767            && secret_key == NULL && pwri_pass == NULL) {
768            BIO_printf(bio_err,
769                       "No recipient certificate or key specified\n");
770            goto opthelp;
771        }
772    } else if (operation == SMIME_ENCRYPT) {
773        if (*argv == NULL && secret_key == NULL
774            && pwri_pass == NULL && sk_X509_num(encerts) <= 0) {
775            BIO_printf(bio_err, "No recipient(s) certificate(s) specified\n");
776            goto opthelp;
777        }
778    } else if (!operation) {
779        BIO_printf(bio_err, "No operation option (-encrypt|-decrypt|-sign|-verify|...) specified.\n");
780        goto opthelp;
781    }
782
783    if (!app_passwd(passinarg, NULL, &passin, NULL)) {
784        BIO_printf(bio_err, "Error getting password\n");
785        goto end;
786    }
787
788    ret = 2;
789
790    if ((operation & SMIME_SIGNERS) == 0) {
791        if ((flags & CMS_DETACHED) == 0)
792            BIO_printf(bio_err,
793                       "Warning: -nodetach option is ignored for non-signing operation\n");
794
795        flags &= ~CMS_DETACHED;
796    }
797    if ((operation & SMIME_IP) == 0 && contfile != NULL)
798        BIO_printf(bio_err,
799                   "Warning: -contfile option is ignored for the given operation\n");
800    if (operation != SMIME_ENCRYPT && *argv != NULL)
801        BIO_printf(bio_err,
802                   "Warning: recipient certificate file parameters ignored for operation other than -encrypt\n");
803
804    if ((flags & CMS_BINARY) != 0) {
805        if (!(operation & SMIME_OP))
806            outformat = FORMAT_BINARY;
807        if (!(operation & SMIME_IP))
808            informat = FORMAT_BINARY;
809        if ((operation & SMIME_SIGNERS) != 0 && (flags & CMS_DETACHED) != 0)
810            binary_files = 1;
811        if ((operation & SMIME_IP) != 0 && contfile == NULL)
812            binary_files = 1;
813    }
814
815    if (operation == SMIME_ENCRYPT) {
816        if (!cipher) {
817#ifndef OPENSSL_NO_DES
818            cipher = (EVP_CIPHER *)EVP_des_ede3_cbc();
819#else
820            BIO_printf(bio_err, "No cipher selected\n");
821            goto end;
822#endif
823        }
824
825        if (secret_key && !secret_keyid) {
826            BIO_printf(bio_err, "No secret key id\n");
827            goto end;
828        }
829
830        for (; *argv != NULL; argv++) {
831            cert = load_cert(*argv, FORMAT_UNDEF,
832                             "recipient certificate file");
833            if (cert == NULL)
834                goto end;
835            if (!sk_X509_push(encerts, cert))
836                goto end;
837            cert = NULL;
838        }
839    }
840
841    if (certfile != NULL) {
842        if (!load_certs(certfile, 0, &other, NULL, "certificate file")) {
843            ERR_print_errors(bio_err);
844            goto end;
845        }
846    }
847
848    if (recipfile != NULL && (operation == SMIME_DECRYPT)) {
849        if ((recip = load_cert(recipfile, FORMAT_UNDEF,
850                               "recipient certificate file")) == NULL) {
851            ERR_print_errors(bio_err);
852            goto end;
853        }
854    }
855
856    if (originatorfile != NULL) {
857        if ((originator = load_cert(originatorfile, FORMAT_UNDEF,
858                                    "originator certificate file")) == NULL) {
859            ERR_print_errors(bio_err);
860            goto end;
861        }
862    }
863
864    if (operation == SMIME_SIGN_RECEIPT) {
865        if ((signer = load_cert(signerfile, FORMAT_UNDEF,
866                                "receipt signer certificate file")) == NULL) {
867            ERR_print_errors(bio_err);
868            goto end;
869        }
870    }
871
872    if ((operation == SMIME_DECRYPT) || (operation == SMIME_ENCRYPT)) {
873        if (keyfile == NULL)
874            keyfile = recipfile;
875    } else if ((operation == SMIME_SIGN) || (operation == SMIME_SIGN_RECEIPT)) {
876        if (keyfile == NULL)
877            keyfile = signerfile;
878    } else {
879        keyfile = NULL;
880    }
881
882    if (keyfile != NULL) {
883        key = load_key(keyfile, keyform, 0, passin, e, "signing key");
884        if (key == NULL)
885            goto end;
886    }
887
888    in = bio_open_default(infile, 'r',
889                          binary_files ? FORMAT_BINARY : informat);
890    if (in == NULL)
891        goto end;
892
893    if (operation & SMIME_IP) {
894        cms = load_content_info(informat, in, flags, &indata, "SMIME");
895        if (cms == NULL)
896            goto end;
897        if (contfile != NULL) {
898            BIO_free(indata);
899            if ((indata = BIO_new_file(contfile, "rb")) == NULL) {
900                BIO_printf(bio_err, "Can't read content file %s\n", contfile);
901                goto end;
902            }
903        }
904        if (certsoutfile != NULL) {
905            STACK_OF(X509) *allcerts;
906            allcerts = CMS_get1_certs(cms);
907            if (!save_certs(certsoutfile, allcerts)) {
908                BIO_printf(bio_err,
909                           "Error writing certs to %s\n", certsoutfile);
910                ret = 5;
911                goto end;
912            }
913            sk_X509_pop_free(allcerts, X509_free);
914        }
915    }
916
917    if (rctfile != NULL) {
918        char *rctmode = (rctformat == FORMAT_ASN1) ? "rb" : "r";
919
920        if ((rctin = BIO_new_file(rctfile, rctmode)) == NULL) {
921            BIO_printf(bio_err, "Can't open receipt file %s\n", rctfile);
922            goto end;
923        }
924
925        rcms = load_content_info(rctformat, rctin, 0, NULL, "receipt");
926        if (rcms == NULL)
927            goto end;
928    }
929
930    out = bio_open_default(outfile, 'w',
931                           binary_files ? FORMAT_BINARY : outformat);
932    if (out == NULL)
933        goto end;
934
935    if ((operation == SMIME_VERIFY) || (operation == SMIME_VERIFY_RECEIPT)) {
936        if ((store = setup_verify(CAfile, noCAfile, CApath, noCApath,
937                                  CAstore, noCAstore)) == NULL)
938            goto end;
939        X509_STORE_set_verify_cb(store, cms_cb);
940        if (vpmtouched)
941            X509_STORE_set1_param(store, vpm);
942    }
943
944    ret = 3;
945
946    if (operation == SMIME_DATA_CREATE) {
947        cms = CMS_data_create_ex(in, flags, libctx, app_get0_propq());
948    } else if (operation == SMIME_DIGEST_CREATE) {
949        cms = CMS_digest_create_ex(in, sign_md, flags, libctx, app_get0_propq());
950    } else if (operation == SMIME_COMPRESS) {
951        cms = CMS_compress(in, -1, flags);
952    } else if (operation == SMIME_ENCRYPT) {
953        int i;
954        flags |= CMS_PARTIAL;
955        cms = CMS_encrypt_ex(NULL, in, cipher, flags, libctx, app_get0_propq());
956        if (cms == NULL)
957            goto end;
958        for (i = 0; i < sk_X509_num(encerts); i++) {
959            CMS_RecipientInfo *ri;
960            cms_key_param *kparam;
961            int tflags = flags | CMS_KEY_PARAM;
962            /* This flag enforces allocating the EVP_PKEY_CTX for the recipient here */
963            EVP_PKEY_CTX *pctx;
964            X509 *x = sk_X509_value(encerts, i);
965            int res;
966
967            for (kparam = key_first; kparam; kparam = kparam->next) {
968                if (kparam->idx == i) {
969                    break;
970                }
971            }
972            ri = CMS_add1_recipient(cms, x, key, originator, tflags);
973            if (ri == NULL)
974                goto end;
975
976            pctx = CMS_RecipientInfo_get0_pkey_ctx(ri);
977            if (kparam != NULL) {
978                if (!cms_set_pkey_param(pctx, kparam->param))
979                    goto end;
980            }
981
982            res = EVP_PKEY_CTX_ctrl(pctx, -1, -1,
983                                    EVP_PKEY_CTRL_CIPHER,
984                                    EVP_CIPHER_get_nid(cipher), NULL);
985            if (res <= 0 && res != -2)
986                goto end;
987
988            if (CMS_RecipientInfo_type(ri) == CMS_RECIPINFO_AGREE
989                    && wrap_cipher != NULL) {
990                EVP_CIPHER_CTX *wctx;
991                wctx = CMS_RecipientInfo_kari_get0_ctx(ri);
992                EVP_EncryptInit_ex(wctx, wrap_cipher, NULL, NULL, NULL);
993            }
994        }
995
996        if (secret_key != NULL) {
997            if (!CMS_add0_recipient_key(cms, NID_undef,
998                                        secret_key, secret_keylen,
999                                        secret_keyid, secret_keyidlen,
1000                                        NULL, NULL, NULL))
1001                goto end;
1002            /* NULL these because call absorbs them */
1003            secret_key = NULL;
1004            secret_keyid = NULL;
1005        }
1006        if (pwri_pass != NULL) {
1007            pwri_tmp = (unsigned char *)OPENSSL_strdup((char *)pwri_pass);
1008            if (pwri_tmp == NULL)
1009                goto end;
1010            if (CMS_add0_recipient_password(cms,
1011                                            -1, NID_undef, NID_undef,
1012                                            pwri_tmp, -1, NULL) == NULL)
1013                goto end;
1014            pwri_tmp = NULL;
1015        }
1016        if (!(flags & CMS_STREAM)) {
1017            if (!CMS_final(cms, in, NULL, flags))
1018                goto end;
1019        }
1020    } else if (operation == SMIME_ENCRYPTED_ENCRYPT) {
1021        cms = CMS_EncryptedData_encrypt_ex(in, cipher, secret_key,
1022                                           secret_keylen, flags, libctx, app_get0_propq());
1023
1024    } else if (operation == SMIME_SIGN_RECEIPT) {
1025        CMS_ContentInfo *srcms = NULL;
1026        STACK_OF(CMS_SignerInfo) *sis;
1027        CMS_SignerInfo *si;
1028        sis = CMS_get0_SignerInfos(cms);
1029        if (sis == NULL)
1030            goto end;
1031        si = sk_CMS_SignerInfo_value(sis, 0);
1032        srcms = CMS_sign_receipt(si, signer, key, other, flags);
1033        if (srcms == NULL)
1034            goto end;
1035        CMS_ContentInfo_free(cms);
1036        cms = srcms;
1037    } else if (operation & SMIME_SIGNERS) {
1038        int i;
1039        /*
1040         * If detached data content we enable streaming if S/MIME output
1041         * format.
1042         */
1043        if (operation == SMIME_SIGN) {
1044
1045            if (flags & CMS_DETACHED) {
1046                if (outformat == FORMAT_SMIME)
1047                    flags |= CMS_STREAM;
1048            }
1049            flags |= CMS_PARTIAL;
1050            cms = CMS_sign_ex(NULL, NULL, other, in, flags, libctx, app_get0_propq());
1051            if (cms == NULL)
1052                goto end;
1053            if (econtent_type != NULL)
1054                CMS_set1_eContentType(cms, econtent_type);
1055
1056            if (rr_to != NULL
1057                && ((rr = make_receipt_request(rr_to, rr_allorfirst, rr_from))
1058                    == NULL)) {
1059                BIO_puts(bio_err, "Signed Receipt Request Creation Error\n");
1060                goto end;
1061            }
1062        } else {
1063            flags |= CMS_REUSE_DIGEST;
1064        }
1065        for (i = 0; i < sk_OPENSSL_STRING_num(sksigners); i++) {
1066            CMS_SignerInfo *si;
1067            cms_key_param *kparam;
1068            int tflags = flags;
1069            signerfile = sk_OPENSSL_STRING_value(sksigners, i);
1070            keyfile = sk_OPENSSL_STRING_value(skkeys, i);
1071
1072            signer = load_cert(signerfile, FORMAT_UNDEF, "signer certificate");
1073            if (signer == NULL) {
1074                ret = 2;
1075                goto end;
1076            }
1077            key = load_key(keyfile, keyform, 0, passin, e, "signing key");
1078            if (key == NULL) {
1079                ret = 2;
1080                goto end;
1081            }
1082
1083            for (kparam = key_first; kparam; kparam = kparam->next) {
1084                if (kparam->idx == i) {
1085                    tflags |= CMS_KEY_PARAM;
1086                    break;
1087                }
1088            }
1089            si = CMS_add1_signer(cms, signer, key, sign_md, tflags);
1090            if (si == NULL)
1091                goto end;
1092            if (kparam != NULL) {
1093                EVP_PKEY_CTX *pctx;
1094                pctx = CMS_SignerInfo_get0_pkey_ctx(si);
1095                if (!cms_set_pkey_param(pctx, kparam->param))
1096                    goto end;
1097            }
1098            if (rr != NULL && !CMS_add1_ReceiptRequest(si, rr))
1099                goto end;
1100            X509_free(signer);
1101            signer = NULL;
1102            EVP_PKEY_free(key);
1103            key = NULL;
1104        }
1105        /* If not streaming or resigning finalize structure */
1106        if ((operation == SMIME_SIGN) && !(flags & CMS_STREAM)) {
1107            if (!CMS_final(cms, in, NULL, flags))
1108                goto end;
1109        }
1110    }
1111
1112    if (cms == NULL) {
1113        BIO_printf(bio_err, "Error creating CMS structure\n");
1114        goto end;
1115    }
1116
1117    ret = 4;
1118    if (operation == SMIME_DECRYPT) {
1119        if (flags & CMS_DEBUG_DECRYPT)
1120            CMS_decrypt(cms, NULL, NULL, NULL, NULL, flags);
1121
1122        if (secret_key != NULL) {
1123            if (!CMS_decrypt_set1_key(cms,
1124                                      secret_key, secret_keylen,
1125                                      secret_keyid, secret_keyidlen)) {
1126                BIO_puts(bio_err, "Error decrypting CMS using secret key\n");
1127                goto end;
1128            }
1129        }
1130
1131        if (key != NULL) {
1132            if (!CMS_decrypt_set1_pkey_and_peer(cms, key, recip, originator)) {
1133                BIO_puts(bio_err, "Error decrypting CMS using private key\n");
1134                goto end;
1135            }
1136        }
1137
1138        if (pwri_pass != NULL) {
1139            if (!CMS_decrypt_set1_password(cms, pwri_pass, -1)) {
1140                BIO_puts(bio_err, "Error decrypting CMS using password\n");
1141                goto end;
1142            }
1143        }
1144
1145        if (!CMS_decrypt(cms, NULL, NULL, indata, out, flags)) {
1146            BIO_printf(bio_err, "Error decrypting CMS structure\n");
1147            goto end;
1148        }
1149    } else if (operation == SMIME_DATA_OUT) {
1150        if (!CMS_data(cms, out, flags))
1151            goto end;
1152    } else if (operation == SMIME_UNCOMPRESS) {
1153        if (!CMS_uncompress(cms, indata, out, flags))
1154            goto end;
1155    } else if (operation == SMIME_DIGEST_VERIFY) {
1156        if (CMS_digest_verify(cms, indata, out, flags) > 0) {
1157            BIO_printf(bio_err, "Verification successful\n");
1158        } else {
1159            BIO_printf(bio_err, "Verification failure\n");
1160            goto end;
1161        }
1162    } else if (operation == SMIME_ENCRYPTED_DECRYPT) {
1163        if (!CMS_EncryptedData_decrypt(cms, secret_key, secret_keylen,
1164                                       indata, out, flags))
1165            goto end;
1166    } else if (operation == SMIME_VERIFY) {
1167        if (CMS_verify(cms, other, store, indata, out, flags) > 0) {
1168            BIO_printf(bio_err, "%s Verification successful\n",
1169                       (flags & CMS_CADES) != 0 ? "CAdES" : "CMS");
1170        } else {
1171            BIO_printf(bio_err, "%s Verification failure\n",
1172                       (flags & CMS_CADES) != 0 ? "CAdES" : "CMS");
1173            if (verify_retcode)
1174                ret = verify_err + 32;
1175            goto end;
1176        }
1177        if (signerfile != NULL) {
1178            STACK_OF(X509) *signers = CMS_get0_signers(cms);
1179
1180            if (!save_certs(signerfile, signers)) {
1181                BIO_printf(bio_err,
1182                           "Error writing signers to %s\n", signerfile);
1183                ret = 5;
1184                goto end;
1185            }
1186            sk_X509_free(signers);
1187        }
1188        if (rr_print)
1189            receipt_request_print(cms);
1190
1191    } else if (operation == SMIME_VERIFY_RECEIPT) {
1192        if (CMS_verify_receipt(rcms, cms, other, store, flags) > 0) {
1193            BIO_printf(bio_err, "Verification successful\n");
1194        } else {
1195            BIO_printf(bio_err, "Verification failure\n");
1196            goto end;
1197        }
1198    } else {
1199        if (noout) {
1200            if (print) {
1201                ASN1_PCTX *pctx = NULL;
1202                if (get_nameopt() != XN_FLAG_ONELINE) {
1203                    pctx = ASN1_PCTX_new();
1204                    if (pctx != NULL) { /* Print anyway if malloc failed */
1205                        ASN1_PCTX_set_flags(pctx, ASN1_PCTX_FLAGS_SHOW_ABSENT);
1206                        ASN1_PCTX_set_str_flags(pctx, get_nameopt());
1207                        ASN1_PCTX_set_nm_flags(pctx, get_nameopt());
1208                    }
1209                }
1210                CMS_ContentInfo_print_ctx(out, cms, 0, pctx);
1211                ASN1_PCTX_free(pctx);
1212            }
1213        } else if (outformat == FORMAT_SMIME) {
1214            if (to)
1215                BIO_printf(out, "To: %s%s", to, mime_eol);
1216            if (from)
1217                BIO_printf(out, "From: %s%s", from, mime_eol);
1218            if (subject)
1219                BIO_printf(out, "Subject: %s%s", subject, mime_eol);
1220            if (operation == SMIME_RESIGN)
1221                ret = SMIME_write_CMS(out, cms, indata, flags);
1222            else
1223                ret = SMIME_write_CMS(out, cms, in, flags);
1224        } else if (outformat == FORMAT_PEM) {
1225            ret = PEM_write_bio_CMS_stream(out, cms, in, flags);
1226        } else if (outformat == FORMAT_ASN1) {
1227            ret = i2d_CMS_bio_stream(out, cms, in, flags);
1228        } else {
1229            BIO_printf(bio_err, "Bad output format for CMS file\n");
1230            goto end;
1231        }
1232        if (ret <= 0) {
1233            ret = 6;
1234            goto end;
1235        }
1236    }
1237    ret = 0;
1238 end:
1239    if (ret)
1240        ERR_print_errors(bio_err);
1241    sk_X509_pop_free(encerts, X509_free);
1242    sk_X509_pop_free(other, X509_free);
1243    X509_VERIFY_PARAM_free(vpm);
1244    sk_OPENSSL_STRING_free(sksigners);
1245    sk_OPENSSL_STRING_free(skkeys);
1246    OPENSSL_free(secret_key);
1247    OPENSSL_free(secret_keyid);
1248    OPENSSL_free(pwri_tmp);
1249    ASN1_OBJECT_free(econtent_type);
1250    CMS_ReceiptRequest_free(rr);
1251    sk_OPENSSL_STRING_free(rr_to);
1252    sk_OPENSSL_STRING_free(rr_from);
1253    for (key_param = key_first; key_param;) {
1254        cms_key_param *tparam;
1255        sk_OPENSSL_STRING_free(key_param->param);
1256        tparam = key_param->next;
1257        OPENSSL_free(key_param);
1258        key_param = tparam;
1259    }
1260    X509_STORE_free(store);
1261    X509_free(cert);
1262    X509_free(recip);
1263    X509_free(signer);
1264    EVP_PKEY_free(key);
1265    EVP_CIPHER_free(cipher);
1266    EVP_CIPHER_free(wrap_cipher);
1267    EVP_MD_free(sign_md);
1268    CMS_ContentInfo_free(cms);
1269    CMS_ContentInfo_free(rcms);
1270    release_engine(e);
1271    BIO_free(rctin);
1272    BIO_free(in);
1273    BIO_free(indata);
1274    BIO_free_all(out);
1275    OPENSSL_free(passin);
1276    NCONF_free(conf);
1277    return ret;
1278}
1279
1280static int save_certs(char *signerfile, STACK_OF(X509) *signers)
1281{
1282    int i;
1283    BIO *tmp;
1284    if (signerfile == NULL)
1285        return 1;
1286    tmp = BIO_new_file(signerfile, "w");
1287    if (tmp == NULL)
1288        return 0;
1289    for (i = 0; i < sk_X509_num(signers); i++)
1290        PEM_write_bio_X509(tmp, sk_X509_value(signers, i));
1291    BIO_free(tmp);
1292    return 1;
1293}
1294
1295/* Minimal callback just to output policy info (if any) */
1296
1297static int cms_cb(int ok, X509_STORE_CTX *ctx)
1298{
1299    int error;
1300
1301    error = X509_STORE_CTX_get_error(ctx);
1302
1303    verify_err = error;
1304
1305    if ((error != X509_V_ERR_NO_EXPLICIT_POLICY)
1306        && ((error != X509_V_OK) || (ok != 2)))
1307        return ok;
1308
1309    policies_print(ctx);
1310
1311    return ok;
1312
1313}
1314
1315static void gnames_stack_print(STACK_OF(GENERAL_NAMES) *gns)
1316{
1317    STACK_OF(GENERAL_NAME) *gens;
1318    GENERAL_NAME *gen;
1319    int i, j;
1320
1321    for (i = 0; i < sk_GENERAL_NAMES_num(gns); i++) {
1322        gens = sk_GENERAL_NAMES_value(gns, i);
1323        for (j = 0; j < sk_GENERAL_NAME_num(gens); j++) {
1324            gen = sk_GENERAL_NAME_value(gens, j);
1325            BIO_puts(bio_err, "    ");
1326            GENERAL_NAME_print(bio_err, gen);
1327            BIO_puts(bio_err, "\n");
1328        }
1329    }
1330    return;
1331}
1332
1333static void receipt_request_print(CMS_ContentInfo *cms)
1334{
1335    STACK_OF(CMS_SignerInfo) *sis;
1336    CMS_SignerInfo *si;
1337    CMS_ReceiptRequest *rr;
1338    int allorfirst;
1339    STACK_OF(GENERAL_NAMES) *rto, *rlist;
1340    ASN1_STRING *scid;
1341    int i, rv;
1342    sis = CMS_get0_SignerInfos(cms);
1343    for (i = 0; i < sk_CMS_SignerInfo_num(sis); i++) {
1344        si = sk_CMS_SignerInfo_value(sis, i);
1345        rv = CMS_get1_ReceiptRequest(si, &rr);
1346        BIO_printf(bio_err, "Signer %d:\n", i + 1);
1347        if (rv == 0) {
1348            BIO_puts(bio_err, "  No Receipt Request\n");
1349        } else if (rv < 0) {
1350            BIO_puts(bio_err, "  Receipt Request Parse Error\n");
1351            ERR_print_errors(bio_err);
1352        } else {
1353            const char *id;
1354            int idlen;
1355            CMS_ReceiptRequest_get0_values(rr, &scid, &allorfirst,
1356                                           &rlist, &rto);
1357            BIO_puts(bio_err, "  Signed Content ID:\n");
1358            idlen = ASN1_STRING_length(scid);
1359            id = (const char *)ASN1_STRING_get0_data(scid);
1360            BIO_dump_indent(bio_err, id, idlen, 4);
1361            BIO_puts(bio_err, "  Receipts From");
1362            if (rlist != NULL) {
1363                BIO_puts(bio_err, " List:\n");
1364                gnames_stack_print(rlist);
1365            } else if (allorfirst == 1) {
1366                BIO_puts(bio_err, ": First Tier\n");
1367            } else if (allorfirst == 0) {
1368                BIO_puts(bio_err, ": All\n");
1369            } else {
1370                BIO_printf(bio_err, " Unknown (%d)\n", allorfirst);
1371            }
1372            BIO_puts(bio_err, "  Receipts To:\n");
1373            gnames_stack_print(rto);
1374        }
1375        CMS_ReceiptRequest_free(rr);
1376    }
1377}
1378
1379static STACK_OF(GENERAL_NAMES) *make_names_stack(STACK_OF(OPENSSL_STRING) *ns)
1380{
1381    int i;
1382    STACK_OF(GENERAL_NAMES) *ret;
1383    GENERAL_NAMES *gens = NULL;
1384    GENERAL_NAME *gen = NULL;
1385    ret = sk_GENERAL_NAMES_new_null();
1386    if (ret == NULL)
1387        goto err;
1388    for (i = 0; i < sk_OPENSSL_STRING_num(ns); i++) {
1389        char *str = sk_OPENSSL_STRING_value(ns, i);
1390        gen = a2i_GENERAL_NAME(NULL, NULL, NULL, GEN_EMAIL, str, 0);
1391        if (gen == NULL)
1392            goto err;
1393        gens = GENERAL_NAMES_new();
1394        if (gens == NULL)
1395            goto err;
1396        if (!sk_GENERAL_NAME_push(gens, gen))
1397            goto err;
1398        gen = NULL;
1399        if (!sk_GENERAL_NAMES_push(ret, gens))
1400            goto err;
1401        gens = NULL;
1402    }
1403
1404    return ret;
1405
1406 err:
1407    sk_GENERAL_NAMES_pop_free(ret, GENERAL_NAMES_free);
1408    GENERAL_NAMES_free(gens);
1409    GENERAL_NAME_free(gen);
1410    return NULL;
1411}
1412
1413static CMS_ReceiptRequest
1414*make_receipt_request(STACK_OF(OPENSSL_STRING) *rr_to, int rr_allorfirst,
1415                      STACK_OF(OPENSSL_STRING) *rr_from)
1416{
1417    STACK_OF(GENERAL_NAMES) *rct_to = NULL, *rct_from = NULL;
1418    CMS_ReceiptRequest *rr;
1419
1420    rct_to = make_names_stack(rr_to);
1421    if (rct_to == NULL)
1422        goto err;
1423    if (rr_from != NULL) {
1424        rct_from = make_names_stack(rr_from);
1425        if (rct_from == NULL)
1426            goto err;
1427    } else {
1428        rct_from = NULL;
1429    }
1430    rr = CMS_ReceiptRequest_create0_ex(NULL, -1, rr_allorfirst, rct_from,
1431                                       rct_to, app_get0_libctx());
1432    if (rr == NULL)
1433        goto err;
1434    return rr;
1435 err:
1436    sk_GENERAL_NAMES_pop_free(rct_to, GENERAL_NAMES_free);
1437    sk_GENERAL_NAMES_pop_free(rct_from, GENERAL_NAMES_free);
1438    return NULL;
1439}
1440
1441static int cms_set_pkey_param(EVP_PKEY_CTX *pctx,
1442                              STACK_OF(OPENSSL_STRING) *param)
1443{
1444    char *keyopt;
1445    int i;
1446    if (sk_OPENSSL_STRING_num(param) <= 0)
1447        return 1;
1448    for (i = 0; i < sk_OPENSSL_STRING_num(param); i++) {
1449        keyopt = sk_OPENSSL_STRING_value(param, i);
1450        if (pkey_ctrl_string(pctx, keyopt) <= 0) {
1451            BIO_printf(bio_err, "parameter error \"%s\"\n", keyopt);
1452            ERR_print_errors(bio_err);
1453            return 0;
1454        }
1455    }
1456    return 1;
1457}
1458