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Commit | Line | Data |
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0f113f3e | 1 | /* |
da1c088f | 2 | * Copyright 1999-2023 The OpenSSL Project Authors. All Rights Reserved. |
5a9a4b29 | 3 | * |
dffa7520 | 4 | * Licensed under the Apache License 2.0 (the "License"). You may not use |
846e33c7 RS |
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 | |
5a9a4b29 DSH |
8 | */ |
9 | ||
10 | /* S/MIME utility function */ | |
11 | ||
12 | #include <stdio.h> | |
13 | #include <string.h> | |
36217a94 | 14 | #include "apps.h" |
dab2cd68 | 15 | #include "progs.h" |
11afb40c | 16 | #include <openssl/crypto.h> |
5a9a4b29 DSH |
17 | #include <openssl/pem.h> |
18 | #include <openssl/err.h> | |
5d7c222d DSH |
19 | #include <openssl/x509_vfy.h> |
20 | #include <openssl/x509v3.h> | |
5a9a4b29 | 21 | |
55ec5861 | 22 | static int save_certs(char *signerfile, STACK_OF(X509) *signers); |
5d7c222d | 23 | static int smime_cb(int ok, X509_STORE_CTX *ctx); |
5a9a4b29 | 24 | |
0f113f3e MC |
25 | #define SMIME_OP 0x10 |
26 | #define SMIME_IP 0x20 | |
27 | #define SMIME_SIGNERS 0x40 | |
28 | #define SMIME_ENCRYPT (1 | SMIME_OP) | |
29 | #define SMIME_DECRYPT (2 | SMIME_IP) | |
30 | #define SMIME_SIGN (3 | SMIME_OP | SMIME_SIGNERS) | |
27861607 | 31 | #define SMIME_RESIGN (6 | SMIME_IP | SMIME_OP | SMIME_SIGNERS) |
0f113f3e MC |
32 | #define SMIME_VERIFY (4 | SMIME_IP) |
33 | #define SMIME_PK7OUT (5 | SMIME_IP | SMIME_OP) | |
5a9a4b29 | 34 | |
7e1b7485 | 35 | typedef enum OPTION_choice { |
b0f96018 | 36 | OPT_COMMON, |
7e1b7485 RS |
37 | OPT_ENCRYPT, OPT_DECRYPT, OPT_SIGN, OPT_RESIGN, OPT_VERIFY, |
38 | OPT_PK7OUT, OPT_TEXT, OPT_NOINTERN, OPT_NOVERIFY, OPT_NOCHAIN, | |
39 | OPT_NOCERTS, OPT_NOATTR, OPT_NODETACH, OPT_NOSMIMECAP, | |
40 | OPT_BINARY, OPT_NOSIGS, OPT_STREAM, OPT_INDEF, OPT_NOINDEF, | |
3ee1eac2 | 41 | OPT_CRLFEOL, OPT_ENGINE, OPT_PASSIN, |
7e1b7485 RS |
42 | OPT_TO, OPT_FROM, OPT_SUBJECT, OPT_SIGNER, OPT_RECIP, OPT_MD, |
43 | OPT_CIPHER, OPT_INKEY, OPT_KEYFORM, OPT_CERTFILE, OPT_CAFILE, | |
fd3397fc | 44 | OPT_CAPATH, OPT_CASTORE, OPT_NOCAFILE, OPT_NOCAPATH, OPT_NOCASTORE, |
90a1f2d7 | 45 | OPT_R_ENUM, OPT_PROV_ENUM, OPT_CONFIG, |
7e1b7485 | 46 | OPT_V_ENUM, |
fd3397fc | 47 | OPT_IN, OPT_INFORM, OPT_OUT, |
2b6bcb70 | 48 | OPT_OUTFORM, OPT_CONTENT |
7e1b7485 RS |
49 | } OPTION_CHOICE; |
50 | ||
44c83ebd | 51 | const OPTIONS smime_options[] = { |
92de469f | 52 | {OPT_HELP_STR, 1, '-', "Usage: %s [options] [cert...]\n"}, |
5388f986 RS |
53 | |
54 | OPT_SECTION("General"), | |
7e1b7485 | 55 | {"help", OPT_HELP, '-', "Display this summary"}, |
5388f986 RS |
56 | {"in", OPT_IN, '<', "Input file"}, |
57 | {"inform", OPT_INFORM, 'c', "Input format SMIME (default), PEM or DER"}, | |
58 | {"out", OPT_OUT, '>', "Output file"}, | |
59 | {"outform", OPT_OUTFORM, 'c', | |
60 | "Output format SMIME (default), PEM or DER"}, | |
61 | {"inkey", OPT_INKEY, 's', | |
62 | "Input private key (if not signer or recipient)"}, | |
6d382c74 | 63 | {"keyform", OPT_KEYFORM, 'f', "Input private key format (ENGINE, other values ignored)"}, |
5388f986 RS |
64 | #ifndef OPENSSL_NO_ENGINE |
65 | {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"}, | |
66 | #endif | |
67 | {"stream", OPT_STREAM, '-', "Enable CMS streaming" }, | |
68 | {"indef", OPT_INDEF, '-', "Same as -stream" }, | |
69 | {"noindef", OPT_NOINDEF, '-', "Disable CMS streaming"}, | |
90a1f2d7 | 70 | OPT_CONFIG_OPTION, |
5388f986 RS |
71 | |
72 | OPT_SECTION("Action"), | |
7e1b7485 RS |
73 | {"encrypt", OPT_ENCRYPT, '-', "Encrypt message"}, |
74 | {"decrypt", OPT_DECRYPT, '-', "Decrypt encrypted message"}, | |
75 | {"sign", OPT_SIGN, '-', "Sign message"}, | |
5388f986 | 76 | {"resign", OPT_RESIGN, '-', "Resign a signed message"}, |
7e1b7485 | 77 | {"verify", OPT_VERIFY, '-', "Verify signed message"}, |
27861607 | 78 | {"pk7out", OPT_PK7OUT, '-', "Output PKCS#7 structure"}, |
5388f986 RS |
79 | |
80 | OPT_SECTION("Signing/Encryption"), | |
81 | {"passin", OPT_PASSIN, 's', "Input file pass phrase source"}, | |
82 | {"md", OPT_MD, 's', "Digest algorithm to use when signing or resigning"}, | |
83 | {"", OPT_CIPHER, '-', "Any supported cipher"}, | |
7e1b7485 RS |
84 | {"nointern", OPT_NOINTERN, '-', |
85 | "Don't search certificates in message for signer"}, | |
7e1b7485 RS |
86 | {"nodetach", OPT_NODETACH, '-', "Use opaque signing"}, |
87 | {"noattr", OPT_NOATTR, '-', "Don't include any signed attributes"}, | |
88 | {"binary", OPT_BINARY, '-', "Don't translate message to text"}, | |
f47e5647 | 89 | {"signer", OPT_SIGNER, 's', "Signer certificate file"}, |
7e1b7485 RS |
90 | {"content", OPT_CONTENT, '<', |
91 | "Supply or override content for detached signature"}, | |
5388f986 RS |
92 | {"nocerts", OPT_NOCERTS, '-', |
93 | "Don't include signers certificate when signing"}, | |
94 | ||
95 | OPT_SECTION("Verification/Decryption"), | |
96 | {"nosigs", OPT_NOSIGS, '-', "Don't verify message signature"}, | |
97 | {"noverify", OPT_NOVERIFY, '-', "Don't verify signers certificate"}, | |
98 | ||
99 | {"certfile", OPT_CERTFILE, '<', "Other certificates file"}, | |
100 | {"recip", OPT_RECIP, '<', "Recipient certificate file for decryption"}, | |
101 | ||
102 | OPT_SECTION("Email"), | |
7e1b7485 RS |
103 | {"to", OPT_TO, 's', "To address"}, |
104 | {"from", OPT_FROM, 's', "From address"}, | |
105 | {"subject", OPT_SUBJECT, 's', "Subject"}, | |
106 | {"text", OPT_TEXT, '-', "Include or delete text MIME headers"}, | |
5388f986 RS |
107 | {"nosmimecap", OPT_NOSMIMECAP, '-', "Omit the SMIMECapabilities attribute"}, |
108 | ||
109 | OPT_SECTION("Certificate chain"), | |
7e1b7485 RS |
110 | {"CApath", OPT_CAPATH, '/', "Trusted certificates directory"}, |
111 | {"CAfile", OPT_CAFILE, '<', "Trusted certificates file"}, | |
fd3397fc | 112 | {"CAstore", OPT_CASTORE, ':', "Trusted certificates store URI"}, |
2b6bcb70 MC |
113 | {"no-CAfile", OPT_NOCAFILE, '-', |
114 | "Do not load the default certificates file"}, | |
115 | {"no-CApath", OPT_NOCAPATH, '-', | |
116 | "Do not load certificates from the default certificates directory"}, | |
fd3397fc RL |
117 | {"no-CAstore", OPT_NOCASTORE, '-', |
118 | "Do not load certificates from the default certificates store"}, | |
609b0852 | 119 | {"nochain", OPT_NOCHAIN, '-', |
12d56b29 | 120 | "set PKCS7_NOCHAIN so certificates contained in the message are not used as untrusted CAs" }, |
12d56b29 | 121 | {"crlfeol", OPT_CRLFEOL, '-', "Use CRLF as EOL termination instead of CR only"}, |
5388f986 | 122 | |
3ee1eac2 | 123 | OPT_R_OPTIONS, |
7e1b7485 | 124 | OPT_V_OPTIONS, |
6bd4e3f2 | 125 | OPT_PROV_OPTIONS, |
92de469f RS |
126 | |
127 | OPT_PARAMETERS(), | |
128 | {"cert", 0, 0, "Recipient certs, used when encrypting"}, | |
7e1b7485 RS |
129 | {NULL} |
130 | }; | |
667ac4ec | 131 | |
27861607 DDO |
132 | static const char *operation_name(int operation) |
133 | { | |
134 | switch (operation) { | |
135 | case SMIME_ENCRYPT: | |
136 | return "encrypt"; | |
137 | case SMIME_DECRYPT: | |
138 | return "decrypt"; | |
139 | case SMIME_SIGN: | |
140 | return "sign"; | |
141 | case SMIME_RESIGN: | |
142 | return "resign"; | |
143 | case SMIME_VERIFY: | |
144 | return "verify"; | |
145 | case SMIME_PK7OUT: | |
146 | return "pk7out"; | |
147 | default: | |
148 | return "(invalid operation)"; | |
149 | } | |
150 | } | |
151 | ||
152 | #define SET_OPERATION(op) \ | |
153 | ((operation != 0 && (operation != (op))) \ | |
154 | ? 0 * BIO_printf(bio_err, "%s: Cannot use -%s together with -%s\n", \ | |
155 | prog, operation_name(op), operation_name(operation)) \ | |
156 | : (operation = (op))) | |
157 | ||
7e1b7485 | 158 | int smime_main(int argc, char **argv) |
0f113f3e | 159 | { |
90a1f2d7 | 160 | CONF *conf = NULL; |
7e1b7485 | 161 | BIO *in = NULL, *out = NULL, *indata = NULL; |
0f113f3e | 162 | EVP_PKEY *key = NULL; |
7e1b7485 RS |
163 | PKCS7 *p7 = NULL; |
164 | STACK_OF(OPENSSL_STRING) *sksigners = NULL, *skkeys = NULL; | |
0f113f3e | 165 | STACK_OF(X509) *encerts = NULL, *other = NULL; |
7e1b7485 RS |
166 | X509 *cert = NULL, *recip = NULL, *signer = NULL; |
167 | X509_STORE *store = NULL; | |
168 | X509_VERIFY_PARAM *vpm = NULL; | |
606a417f RS |
169 | EVP_CIPHER *cipher = NULL; |
170 | EVP_MD *sign_md = NULL; | |
fd3397fc | 171 | const char *CAfile = NULL, *CApath = NULL, *CAstore = NULL, *prog = NULL; |
3ee1eac2 RS |
172 | char *certfile = NULL, *keyfile = NULL, *contfile = NULL; |
173 | char *infile = NULL, *outfile = NULL, *signerfile = NULL, *recipfile = NULL; | |
d0190e11 | 174 | char *passinarg = NULL, *passin = NULL, *to = NULL, *from = NULL; |
03bbd346 | 175 | char *subject = NULL, *digestname = NULL, *ciphername = NULL; |
7e1b7485 | 176 | OPTION_CHOICE o; |
fd3397fc | 177 | int noCApath = 0, noCAfile = 0, noCAstore = 0; |
3ee1eac2 | 178 | int flags = PKCS7_DETACHED, operation = 0, ret = 0, indef = 0; |
7e1b7485 | 179 | int informat = FORMAT_SMIME, outformat = FORMAT_SMIME, keyform = |
d382e796 | 180 | FORMAT_UNDEF; |
7e1b7485 | 181 | int vpmtouched = 0, rv = 0; |
7e1b7485 | 182 | ENGINE *e = NULL; |
2197494d | 183 | const char *mime_eol = "\n"; |
b4250010 | 184 | OSSL_LIB_CTX *libctx = app_get0_libctx(); |
5a9a4b29 | 185 | |
7e1b7485 RS |
186 | if ((vpm = X509_VERIFY_PARAM_new()) == NULL) |
187 | return 1; | |
0f113f3e | 188 | |
2c272447 | 189 | opt_set_unknown_name("cipher"); |
7e1b7485 RS |
190 | prog = opt_init(argc, argv, smime_options); |
191 | while ((o = opt_next()) != OPT_EOF) { | |
192 | switch (o) { | |
193 | case OPT_EOF: | |
194 | case OPT_ERR: | |
195 | opthelp: | |
196 | BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); | |
197 | goto end; | |
198 | case OPT_HELP: | |
199 | opt_help(smime_options); | |
200 | ret = 0; | |
201 | goto end; | |
202 | case OPT_INFORM: | |
f47e5647 | 203 | if (!opt_format(opt_arg(), OPT_FMT_PDS, &informat)) |
7e1b7485 RS |
204 | goto opthelp; |
205 | break; | |
206 | case OPT_IN: | |
207 | infile = opt_arg(); | |
208 | break; | |
209 | case OPT_OUTFORM: | |
f47e5647 | 210 | if (!opt_format(opt_arg(), OPT_FMT_PDS, &outformat)) |
7e1b7485 RS |
211 | goto opthelp; |
212 | break; | |
213 | case OPT_OUT: | |
214 | outfile = opt_arg(); | |
215 | break; | |
216 | case OPT_ENCRYPT: | |
27861607 DDO |
217 | if (!SET_OPERATION(SMIME_ENCRYPT)) |
218 | goto end; | |
7e1b7485 RS |
219 | break; |
220 | case OPT_DECRYPT: | |
27861607 DDO |
221 | if (!SET_OPERATION(SMIME_DECRYPT)) |
222 | goto end; | |
7e1b7485 RS |
223 | break; |
224 | case OPT_SIGN: | |
27861607 DDO |
225 | if (!SET_OPERATION(SMIME_SIGN)) |
226 | goto end; | |
7e1b7485 RS |
227 | break; |
228 | case OPT_RESIGN: | |
27861607 DDO |
229 | if (!SET_OPERATION(SMIME_RESIGN)) |
230 | goto end; | |
7e1b7485 RS |
231 | break; |
232 | case OPT_VERIFY: | |
27861607 DDO |
233 | if (!SET_OPERATION(SMIME_VERIFY)) |
234 | goto end; | |
7e1b7485 RS |
235 | break; |
236 | case OPT_PK7OUT: | |
27861607 DDO |
237 | if (!SET_OPERATION(SMIME_PK7OUT)) |
238 | goto end; | |
7e1b7485 RS |
239 | break; |
240 | case OPT_TEXT: | |
0f113f3e | 241 | flags |= PKCS7_TEXT; |
7e1b7485 RS |
242 | break; |
243 | case OPT_NOINTERN: | |
0f113f3e | 244 | flags |= PKCS7_NOINTERN; |
7e1b7485 RS |
245 | break; |
246 | case OPT_NOVERIFY: | |
0f113f3e | 247 | flags |= PKCS7_NOVERIFY; |
7e1b7485 RS |
248 | break; |
249 | case OPT_NOCHAIN: | |
0f113f3e | 250 | flags |= PKCS7_NOCHAIN; |
7e1b7485 RS |
251 | break; |
252 | case OPT_NOCERTS: | |
0f113f3e | 253 | flags |= PKCS7_NOCERTS; |
7e1b7485 RS |
254 | break; |
255 | case OPT_NOATTR: | |
0f113f3e | 256 | flags |= PKCS7_NOATTR; |
7e1b7485 RS |
257 | break; |
258 | case OPT_NODETACH: | |
0f113f3e | 259 | flags &= ~PKCS7_DETACHED; |
7e1b7485 RS |
260 | break; |
261 | case OPT_NOSMIMECAP: | |
0f113f3e | 262 | flags |= PKCS7_NOSMIMECAP; |
7e1b7485 RS |
263 | break; |
264 | case OPT_BINARY: | |
0f113f3e | 265 | flags |= PKCS7_BINARY; |
7e1b7485 RS |
266 | break; |
267 | case OPT_NOSIGS: | |
0f113f3e | 268 | flags |= PKCS7_NOSIGS; |
7e1b7485 RS |
269 | break; |
270 | case OPT_STREAM: | |
271 | case OPT_INDEF: | |
0f113f3e | 272 | indef = 1; |
7e1b7485 RS |
273 | break; |
274 | case OPT_NOINDEF: | |
0f113f3e | 275 | indef = 0; |
7e1b7485 | 276 | break; |
7e1b7485 | 277 | case OPT_CRLFEOL: |
0f113f3e | 278 | flags |= PKCS7_CRLFEOL; |
2197494d | 279 | mime_eol = "\r\n"; |
7e1b7485 | 280 | break; |
3ee1eac2 RS |
281 | case OPT_R_CASES: |
282 | if (!opt_rand(o)) | |
283 | goto end; | |
7e1b7485 | 284 | break; |
6bd4e3f2 P |
285 | case OPT_PROV_CASES: |
286 | if (!opt_provider(o)) | |
287 | goto end; | |
288 | break; | |
90a1f2d7 SL |
289 | case OPT_CONFIG: |
290 | conf = app_load_config_modules(opt_arg()); | |
291 | if (conf == NULL) | |
292 | goto end; | |
293 | break; | |
7e1b7485 | 294 | case OPT_ENGINE: |
333b070e | 295 | e = setup_engine(opt_arg(), 0); |
7e1b7485 RS |
296 | break; |
297 | case OPT_PASSIN: | |
298 | passinarg = opt_arg(); | |
299 | break; | |
300 | case OPT_TO: | |
301 | to = opt_arg(); | |
302 | break; | |
303 | case OPT_FROM: | |
304 | from = opt_arg(); | |
305 | break; | |
306 | case OPT_SUBJECT: | |
307 | subject = opt_arg(); | |
308 | break; | |
309 | case OPT_SIGNER: | |
0f113f3e | 310 | /* If previous -signer argument add signer to list */ |
2234212c | 311 | if (signerfile != NULL) { |
7e1b7485 RS |
312 | if (sksigners == NULL |
313 | && (sksigners = sk_OPENSSL_STRING_new_null()) == NULL) | |
314 | goto end; | |
0f113f3e | 315 | sk_OPENSSL_STRING_push(sksigners, signerfile); |
7e1b7485 | 316 | if (keyfile == NULL) |
0f113f3e | 317 | keyfile = signerfile; |
7e1b7485 RS |
318 | if (skkeys == NULL |
319 | && (skkeys = sk_OPENSSL_STRING_new_null()) == NULL) | |
320 | goto end; | |
0f113f3e MC |
321 | sk_OPENSSL_STRING_push(skkeys, keyfile); |
322 | keyfile = NULL; | |
323 | } | |
7e1b7485 RS |
324 | signerfile = opt_arg(); |
325 | break; | |
326 | case OPT_RECIP: | |
327 | recipfile = opt_arg(); | |
328 | break; | |
329 | case OPT_MD: | |
d0190e11 | 330 | digestname = opt_arg(); |
7e1b7485 RS |
331 | break; |
332 | case OPT_CIPHER: | |
03bbd346 | 333 | ciphername = opt_unknown(); |
7e1b7485 RS |
334 | break; |
335 | case OPT_INKEY: | |
ceab33e2 | 336 | /* If previous -inkey argument add signer to list */ |
2234212c | 337 | if (keyfile != NULL) { |
7e1b7485 RS |
338 | if (signerfile == NULL) { |
339 | BIO_printf(bio_err, | |
340 | "%s: Must have -signer before -inkey\n", prog); | |
341 | goto opthelp; | |
0f113f3e | 342 | } |
7e1b7485 RS |
343 | if (sksigners == NULL |
344 | && (sksigners = sk_OPENSSL_STRING_new_null()) == NULL) | |
345 | goto end; | |
0f113f3e MC |
346 | sk_OPENSSL_STRING_push(sksigners, signerfile); |
347 | signerfile = NULL; | |
7e1b7485 RS |
348 | if (skkeys == NULL |
349 | && (skkeys = sk_OPENSSL_STRING_new_null()) == NULL) | |
350 | goto end; | |
0f113f3e MC |
351 | sk_OPENSSL_STRING_push(skkeys, keyfile); |
352 | } | |
7e1b7485 RS |
353 | keyfile = opt_arg(); |
354 | break; | |
355 | case OPT_KEYFORM: | |
356 | if (!opt_format(opt_arg(), OPT_FMT_ANY, &keyform)) | |
357 | goto opthelp; | |
358 | break; | |
359 | case OPT_CERTFILE: | |
360 | certfile = opt_arg(); | |
361 | break; | |
362 | case OPT_CAFILE: | |
363 | CAfile = opt_arg(); | |
364 | break; | |
365 | case OPT_CAPATH: | |
366 | CApath = opt_arg(); | |
367 | break; | |
fd3397fc RL |
368 | case OPT_CASTORE: |
369 | CAstore = opt_arg(); | |
370 | break; | |
2b6bcb70 MC |
371 | case OPT_NOCAFILE: |
372 | noCAfile = 1; | |
373 | break; | |
374 | case OPT_NOCAPATH: | |
375 | noCApath = 1; | |
376 | break; | |
fd3397fc RL |
377 | case OPT_NOCASTORE: |
378 | noCAstore = 1; | |
379 | break; | |
7e1b7485 RS |
380 | case OPT_CONTENT: |
381 | contfile = opt_arg(); | |
382 | break; | |
383 | case OPT_V_CASES: | |
384 | if (!opt_verify(o, vpm)) | |
385 | goto opthelp; | |
386 | vpmtouched++; | |
387 | break; | |
388 | } | |
0f113f3e | 389 | } |
021410ea RS |
390 | |
391 | /* Extra arguments are files with recipient keys. */ | |
7e1b7485 RS |
392 | argc = opt_num_rest(); |
393 | argv = opt_rest(); | |
0f113f3e | 394 | |
3ad60309 DDO |
395 | if (!app_RAND_load()) |
396 | goto end; | |
397 | ||
d0190e11 RS |
398 | if (digestname != NULL) { |
399 | if (!opt_md(digestname, &sign_md)) | |
400 | goto opthelp; | |
03bbd346 | 401 | } |
d9f07357 | 402 | if (!opt_cipher_any(ciphername, &cipher)) |
03bbd346 | 403 | goto opthelp; |
2234212c | 404 | if (!(operation & SMIME_SIGNERS) && (skkeys != NULL || sksigners != NULL)) { |
0f113f3e | 405 | BIO_puts(bio_err, "Multiple signers or keys not allowed\n"); |
7e1b7485 | 406 | goto opthelp; |
0f113f3e | 407 | } |
021410ea RS |
408 | if (!operation) { |
409 | BIO_puts(bio_err, | |
410 | "No operation (-encrypt|-sign|...) specified\n"); | |
411 | goto opthelp; | |
412 | } | |
0f113f3e MC |
413 | |
414 | if (operation & SMIME_SIGNERS) { | |
415 | /* Check to see if any final signer needs to be appended */ | |
416 | if (keyfile && !signerfile) { | |
417 | BIO_puts(bio_err, "Illegal -inkey without -signer\n"); | |
7e1b7485 | 418 | goto opthelp; |
0f113f3e | 419 | } |
2234212c PY |
420 | if (signerfile != NULL) { |
421 | if (sksigners == NULL | |
7e1b7485 RS |
422 | && (sksigners = sk_OPENSSL_STRING_new_null()) == NULL) |
423 | goto end; | |
0f113f3e | 424 | sk_OPENSSL_STRING_push(sksigners, signerfile); |
7e1b7485 RS |
425 | if (!skkeys && (skkeys = sk_OPENSSL_STRING_new_null()) == NULL) |
426 | goto end; | |
0f113f3e MC |
427 | if (!keyfile) |
428 | keyfile = signerfile; | |
429 | sk_OPENSSL_STRING_push(skkeys, keyfile); | |
430 | } | |
2234212c | 431 | if (sksigners == NULL) { |
0f113f3e | 432 | BIO_printf(bio_err, "No signer certificate specified\n"); |
7e1b7485 | 433 | goto opthelp; |
0f113f3e MC |
434 | } |
435 | signerfile = NULL; | |
436 | keyfile = NULL; | |
0f113f3e | 437 | } else if (operation == SMIME_DECRYPT) { |
2234212c | 438 | if (recipfile == NULL && keyfile == NULL) { |
0f113f3e MC |
439 | BIO_printf(bio_err, |
440 | "No recipient certificate or key specified\n"); | |
7e1b7485 | 441 | goto opthelp; |
0f113f3e MC |
442 | } |
443 | } else if (operation == SMIME_ENCRYPT) { | |
7e1b7485 | 444 | if (argc == 0) { |
0f113f3e | 445 | BIO_printf(bio_err, "No recipient(s) certificate(s) specified\n"); |
7e1b7485 | 446 | goto opthelp; |
0f113f3e | 447 | } |
2234212c | 448 | } |
7e1b7485 | 449 | |
7e1b7485 | 450 | if (!app_passwd(passinarg, NULL, &passin, NULL)) { |
0f113f3e MC |
451 | BIO_printf(bio_err, "Error getting password\n"); |
452 | goto end; | |
453 | } | |
454 | ||
0f113f3e MC |
455 | ret = 2; |
456 | ||
457 | if (!(operation & SMIME_SIGNERS)) | |
458 | flags &= ~PKCS7_DETACHED; | |
459 | ||
bdd58d98 | 460 | if (!(operation & SMIME_OP)) { |
0f113f3e | 461 | if (flags & PKCS7_BINARY) |
bdd58d98 | 462 | outformat = FORMAT_BINARY; |
0f113f3e MC |
463 | } |
464 | ||
bdd58d98 | 465 | if (!(operation & SMIME_IP)) { |
0f113f3e | 466 | if (flags & PKCS7_BINARY) |
bdd58d98 | 467 | informat = FORMAT_BINARY; |
0f113f3e MC |
468 | } |
469 | ||
470 | if (operation == SMIME_ENCRYPT) { | |
2234212c | 471 | if (cipher == NULL) { |
0f113f3e | 472 | #ifndef OPENSSL_NO_DES |
606a417f | 473 | cipher = (EVP_CIPHER *)EVP_des_ede3_cbc(); |
63da21c0 | 474 | #else |
0f113f3e MC |
475 | BIO_printf(bio_err, "No cipher selected\n"); |
476 | goto end; | |
63da21c0 | 477 | #endif |
0f113f3e MC |
478 | } |
479 | encerts = sk_X509_new_null(); | |
2234212c | 480 | if (encerts == NULL) |
7e1b7485 | 481 | goto end; |
2234212c | 482 | while (*argv != NULL) { |
d382e796 TM |
483 | cert = load_cert(*argv, FORMAT_UNDEF, |
484 | "recipient certificate file"); | |
7e1b7485 | 485 | if (cert == NULL) |
0f113f3e | 486 | goto end; |
ba4d833f BE |
487 | if (!sk_X509_push(encerts, cert)) |
488 | goto end; | |
0f113f3e | 489 | cert = NULL; |
7e1b7485 | 490 | argv++; |
0f113f3e MC |
491 | } |
492 | } | |
493 | ||
2234212c | 494 | if (certfile != NULL) { |
ea51096e | 495 | if (!load_certs(certfile, 0, &other, NULL, "certificates")) { |
0f113f3e MC |
496 | ERR_print_errors(bio_err); |
497 | goto end; | |
498 | } | |
499 | } | |
500 | ||
2234212c | 501 | if (recipfile != NULL && (operation == SMIME_DECRYPT)) { |
d382e796 | 502 | if ((recip = load_cert(recipfile, FORMAT_UNDEF, |
a773b52a | 503 | "recipient certificate file")) == NULL) { |
0f113f3e MC |
504 | ERR_print_errors(bio_err); |
505 | goto end; | |
506 | } | |
507 | } | |
508 | ||
509 | if (operation == SMIME_DECRYPT) { | |
2234212c | 510 | if (keyfile == NULL) |
0f113f3e MC |
511 | keyfile = recipfile; |
512 | } else if (operation == SMIME_SIGN) { | |
2234212c | 513 | if (keyfile == NULL) |
0f113f3e | 514 | keyfile = signerfile; |
2234212c | 515 | } else { |
0f113f3e | 516 | keyfile = NULL; |
2234212c | 517 | } |
0f113f3e | 518 | |
2234212c | 519 | if (keyfile != NULL) { |
50eb2a50 | 520 | key = load_key(keyfile, keyform, 0, passin, e, "signing key"); |
2234212c | 521 | if (key == NULL) |
0f113f3e MC |
522 | goto end; |
523 | } | |
524 | ||
bdd58d98 | 525 | in = bio_open_default(infile, 'r', informat); |
7e1b7485 RS |
526 | if (in == NULL) |
527 | goto end; | |
0f113f3e MC |
528 | |
529 | if (operation & SMIME_IP) { | |
90a1f2d7 SL |
530 | PKCS7 *p7_in = NULL; |
531 | ||
7dc67708 | 532 | p7 = PKCS7_new_ex(libctx, app_get0_propq()); |
90a1f2d7 SL |
533 | if (p7 == NULL) { |
534 | BIO_printf(bio_err, "Error allocating PKCS7 object\n"); | |
535 | goto end; | |
536 | } | |
2234212c | 537 | if (informat == FORMAT_SMIME) { |
90a1f2d7 | 538 | p7_in = SMIME_read_PKCS7_ex(in, &indata, &p7); |
2234212c | 539 | } else if (informat == FORMAT_PEM) { |
90a1f2d7 | 540 | p7_in = PEM_read_bio_PKCS7(in, &p7, NULL, NULL); |
2234212c | 541 | } else if (informat == FORMAT_ASN1) { |
90a1f2d7 | 542 | p7_in = d2i_PKCS7_bio(in, &p7); |
2234212c | 543 | } else { |
0f113f3e MC |
544 | BIO_printf(bio_err, "Bad input format for PKCS#7 file\n"); |
545 | goto end; | |
546 | } | |
547 | ||
90a1f2d7 | 548 | if (p7_in == NULL) { |
0f113f3e MC |
549 | BIO_printf(bio_err, "Error reading S/MIME message\n"); |
550 | goto end; | |
551 | } | |
2234212c | 552 | if (contfile != NULL) { |
0f113f3e | 553 | BIO_free(indata); |
75ebbd9a | 554 | if ((indata = BIO_new_file(contfile, "rb")) == NULL) { |
0f113f3e MC |
555 | BIO_printf(bio_err, "Can't read content file %s\n", contfile); |
556 | goto end; | |
557 | } | |
558 | } | |
559 | } | |
560 | ||
bdd58d98 | 561 | out = bio_open_default(outfile, 'w', outformat); |
7e1b7485 RS |
562 | if (out == NULL) |
563 | goto end; | |
0f113f3e MC |
564 | |
565 | if (operation == SMIME_VERIFY) { | |
fd3397fc RL |
566 | if ((store = setup_verify(CAfile, noCAfile, CApath, noCApath, |
567 | CAstore, noCAstore)) == NULL) | |
0f113f3e MC |
568 | goto end; |
569 | X509_STORE_set_verify_cb(store, smime_cb); | |
7e1b7485 | 570 | if (vpmtouched) |
0f113f3e MC |
571 | X509_STORE_set1_param(store, vpm); |
572 | } | |
573 | ||
574 | ret = 3; | |
575 | ||
576 | if (operation == SMIME_ENCRYPT) { | |
577 | if (indef) | |
578 | flags |= PKCS7_STREAM; | |
7dc67708 | 579 | p7 = PKCS7_encrypt_ex(encerts, in, cipher, flags, libctx, app_get0_propq()); |
0f113f3e MC |
580 | } else if (operation & SMIME_SIGNERS) { |
581 | int i; | |
582 | /* | |
583 | * If detached data content we only enable streaming if S/MIME output | |
584 | * format. | |
585 | */ | |
586 | if (operation == SMIME_SIGN) { | |
587 | if (flags & PKCS7_DETACHED) { | |
588 | if (outformat == FORMAT_SMIME) | |
589 | flags |= PKCS7_STREAM; | |
2234212c | 590 | } else if (indef) { |
0f113f3e | 591 | flags |= PKCS7_STREAM; |
2234212c | 592 | } |
0f113f3e | 593 | flags |= PKCS7_PARTIAL; |
7dc67708 | 594 | p7 = PKCS7_sign_ex(NULL, NULL, other, in, flags, libctx, app_get0_propq()); |
2234212c | 595 | if (p7 == NULL) |
0f113f3e MC |
596 | goto end; |
597 | if (flags & PKCS7_NOCERTS) { | |
598 | for (i = 0; i < sk_X509_num(other); i++) { | |
599 | X509 *x = sk_X509_value(other, i); | |
600 | PKCS7_add_certificate(p7, x); | |
601 | } | |
602 | } | |
2234212c | 603 | } else { |
0f113f3e | 604 | flags |= PKCS7_REUSE_DIGEST; |
2234212c | 605 | } |
0f113f3e MC |
606 | for (i = 0; i < sk_OPENSSL_STRING_num(sksigners); i++) { |
607 | signerfile = sk_OPENSSL_STRING_value(sksigners, i); | |
608 | keyfile = sk_OPENSSL_STRING_value(skkeys, i); | |
d382e796 | 609 | signer = load_cert(signerfile, FORMAT_UNDEF, "signer certificate"); |
2234212c | 610 | if (signer == NULL) |
0f113f3e | 611 | goto end; |
50eb2a50 | 612 | key = load_key(keyfile, keyform, 0, passin, e, "signing key"); |
2234212c | 613 | if (key == NULL) |
0f113f3e | 614 | goto end; |
a10847c4 | 615 | |
0f113f3e MC |
616 | if (!PKCS7_sign_add_signer(p7, signer, key, sign_md, flags)) |
617 | goto end; | |
618 | X509_free(signer); | |
619 | signer = NULL; | |
620 | EVP_PKEY_free(key); | |
621 | key = NULL; | |
622 | } | |
623 | /* If not streaming or resigning finalize structure */ | |
624 | if ((operation == SMIME_SIGN) && !(flags & PKCS7_STREAM)) { | |
625 | if (!PKCS7_final(p7, in, flags)) | |
626 | goto end; | |
627 | } | |
628 | } | |
629 | ||
2234212c | 630 | if (p7 == NULL) { |
0f113f3e MC |
631 | BIO_printf(bio_err, "Error creating PKCS#7 structure\n"); |
632 | goto end; | |
633 | } | |
634 | ||
635 | ret = 4; | |
636 | if (operation == SMIME_DECRYPT) { | |
637 | if (!PKCS7_decrypt(p7, key, recip, out, flags)) { | |
638 | BIO_printf(bio_err, "Error decrypting PKCS#7 structure\n"); | |
639 | goto end; | |
640 | } | |
641 | } else if (operation == SMIME_VERIFY) { | |
642 | STACK_OF(X509) *signers; | |
643 | if (PKCS7_verify(p7, other, store, indata, out, flags)) | |
644 | BIO_printf(bio_err, "Verification successful\n"); | |
645 | else { | |
646 | BIO_printf(bio_err, "Verification failure\n"); | |
647 | goto end; | |
648 | } | |
649 | signers = PKCS7_get0_signers(p7, other, flags); | |
650 | if (!save_certs(signerfile, signers)) { | |
651 | BIO_printf(bio_err, "Error writing signers to %s\n", signerfile); | |
652 | ret = 5; | |
653 | goto end; | |
654 | } | |
655 | sk_X509_free(signers); | |
2234212c | 656 | } else if (operation == SMIME_PK7OUT) { |
0f113f3e | 657 | PEM_write_bio_PKCS7(out, p7); |
2234212c | 658 | } else { |
0f113f3e | 659 | if (to) |
2197494d | 660 | BIO_printf(out, "To: %s%s", to, mime_eol); |
0f113f3e | 661 | if (from) |
2197494d | 662 | BIO_printf(out, "From: %s%s", from, mime_eol); |
0f113f3e | 663 | if (subject) |
2197494d | 664 | BIO_printf(out, "Subject: %s%s", subject, mime_eol); |
0f113f3e MC |
665 | if (outformat == FORMAT_SMIME) { |
666 | if (operation == SMIME_RESIGN) | |
7e1b7485 | 667 | rv = SMIME_write_PKCS7(out, p7, indata, flags); |
0f113f3e | 668 | else |
7e1b7485 | 669 | rv = SMIME_write_PKCS7(out, p7, in, flags); |
2234212c | 670 | } else if (outformat == FORMAT_PEM) { |
7e1b7485 | 671 | rv = PEM_write_bio_PKCS7_stream(out, p7, in, flags); |
2234212c | 672 | } else if (outformat == FORMAT_ASN1) { |
7e1b7485 | 673 | rv = i2d_PKCS7_bio_stream(out, p7, in, flags); |
2234212c | 674 | } else { |
0f113f3e MC |
675 | BIO_printf(bio_err, "Bad output format for PKCS#7 file\n"); |
676 | goto end; | |
677 | } | |
7e1b7485 RS |
678 | if (rv == 0) { |
679 | BIO_printf(bio_err, "Error writing output\n"); | |
680 | ret = 3; | |
681 | goto end; | |
682 | } | |
0f113f3e MC |
683 | } |
684 | ret = 0; | |
685 | end: | |
0f113f3e MC |
686 | if (ret) |
687 | ERR_print_errors(bio_err); | |
79b2a2f2 DDO |
688 | OSSL_STACK_OF_X509_free(encerts); |
689 | OSSL_STACK_OF_X509_free(other); | |
222561fe | 690 | X509_VERIFY_PARAM_free(vpm); |
25aaa98a RS |
691 | sk_OPENSSL_STRING_free(sksigners); |
692 | sk_OPENSSL_STRING_free(skkeys); | |
0f113f3e MC |
693 | X509_STORE_free(store); |
694 | X509_free(cert); | |
695 | X509_free(recip); | |
696 | X509_free(signer); | |
697 | EVP_PKEY_free(key); | |
606a417f RS |
698 | EVP_MD_free(sign_md); |
699 | EVP_CIPHER_free(cipher); | |
0f113f3e | 700 | PKCS7_free(p7); |
dd1abd44 | 701 | release_engine(e); |
0f113f3e MC |
702 | BIO_free(in); |
703 | BIO_free(indata); | |
704 | BIO_free_all(out); | |
b548a1f1 | 705 | OPENSSL_free(passin); |
90a1f2d7 | 706 | NCONF_free(conf); |
26a7d938 | 707 | return ret; |
5a9a4b29 DSH |
708 | } |
709 | ||
a91451ef | 710 | static int save_certs(char *signerfile, STACK_OF(X509) *signers) |
0f113f3e MC |
711 | { |
712 | int i; | |
713 | BIO *tmp; | |
2234212c PY |
714 | |
715 | if (signerfile == NULL) | |
0f113f3e MC |
716 | return 1; |
717 | tmp = BIO_new_file(signerfile, "w"); | |
2234212c | 718 | if (tmp == NULL) |
0f113f3e MC |
719 | return 0; |
720 | for (i = 0; i < sk_X509_num(signers); i++) | |
721 | PEM_write_bio_X509(tmp, sk_X509_value(signers, i)); | |
722 | BIO_free(tmp); | |
723 | return 1; | |
724 | } | |
5d7c222d | 725 | |
5d7c222d DSH |
726 | /* Minimal callback just to output policy info (if any) */ |
727 | ||
728 | static int smime_cb(int ok, X509_STORE_CTX *ctx) | |
0f113f3e MC |
729 | { |
730 | int error; | |
5d7c222d | 731 | |
0f113f3e | 732 | error = X509_STORE_CTX_get_error(ctx); |
5d7c222d | 733 | |
0f113f3e MC |
734 | if ((error != X509_V_ERR_NO_EXPLICIT_POLICY) |
735 | && ((error != X509_V_OK) || (ok != 2))) | |
736 | return ok; | |
5d7c222d | 737 | |
ecf3a1fb | 738 | policies_print(ctx); |
5d7c222d | 739 | |
0f113f3e | 740 | return ok; |
0f113f3e | 741 | } |