]>
Commit | Line | Data |
---|---|---|
0f113f3e | 1 | /* |
4333b89f | 2 | * Copyright 1999-2021 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) | |
31 | #define SMIME_VERIFY (4 | SMIME_IP) | |
32 | #define SMIME_PK7OUT (5 | SMIME_IP | SMIME_OP) | |
33 | #define SMIME_RESIGN (6 | SMIME_IP | SMIME_OP | SMIME_SIGNERS) | |
5a9a4b29 | 34 | |
7e1b7485 RS |
35 | typedef enum OPTION_choice { |
36 | OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, | |
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"}, |
5388f986 RS |
78 | |
79 | OPT_SECTION("Signing/Encryption"), | |
80 | {"passin", OPT_PASSIN, 's', "Input file pass phrase source"}, | |
81 | {"md", OPT_MD, 's', "Digest algorithm to use when signing or resigning"}, | |
82 | {"", OPT_CIPHER, '-', "Any supported cipher"}, | |
7e1b7485 RS |
83 | {"pk7out", OPT_PK7OUT, '-', "Output PKCS#7 structure"}, |
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 | |
7e1b7485 | 132 | int smime_main(int argc, char **argv) |
0f113f3e | 133 | { |
90a1f2d7 | 134 | CONF *conf = NULL; |
7e1b7485 | 135 | BIO *in = NULL, *out = NULL, *indata = NULL; |
0f113f3e | 136 | EVP_PKEY *key = NULL; |
7e1b7485 RS |
137 | PKCS7 *p7 = NULL; |
138 | STACK_OF(OPENSSL_STRING) *sksigners = NULL, *skkeys = NULL; | |
0f113f3e | 139 | STACK_OF(X509) *encerts = NULL, *other = NULL; |
7e1b7485 RS |
140 | X509 *cert = NULL, *recip = NULL, *signer = NULL; |
141 | X509_STORE *store = NULL; | |
142 | X509_VERIFY_PARAM *vpm = NULL; | |
143 | const EVP_CIPHER *cipher = NULL; | |
0f113f3e | 144 | const EVP_MD *sign_md = NULL; |
fd3397fc | 145 | const char *CAfile = NULL, *CApath = NULL, *CAstore = NULL, *prog = NULL; |
3ee1eac2 RS |
146 | char *certfile = NULL, *keyfile = NULL, *contfile = NULL; |
147 | char *infile = NULL, *outfile = NULL, *signerfile = NULL, *recipfile = NULL; | |
d0190e11 RS |
148 | char *passinarg = NULL, *passin = NULL, *to = NULL, *from = NULL; |
149 | char *subject = NULL, *digestname = NULL; | |
7e1b7485 | 150 | OPTION_CHOICE o; |
fd3397fc | 151 | int noCApath = 0, noCAfile = 0, noCAstore = 0; |
3ee1eac2 | 152 | int flags = PKCS7_DETACHED, operation = 0, ret = 0, indef = 0; |
7e1b7485 RS |
153 | int informat = FORMAT_SMIME, outformat = FORMAT_SMIME, keyform = |
154 | FORMAT_PEM; | |
155 | int vpmtouched = 0, rv = 0; | |
7e1b7485 | 156 | ENGINE *e = NULL; |
2197494d | 157 | const char *mime_eol = "\n"; |
b4250010 | 158 | OSSL_LIB_CTX *libctx = app_get0_libctx(); |
5a9a4b29 | 159 | |
7e1b7485 RS |
160 | if ((vpm = X509_VERIFY_PARAM_new()) == NULL) |
161 | return 1; | |
0f113f3e | 162 | |
7e1b7485 RS |
163 | prog = opt_init(argc, argv, smime_options); |
164 | while ((o = opt_next()) != OPT_EOF) { | |
165 | switch (o) { | |
166 | case OPT_EOF: | |
167 | case OPT_ERR: | |
168 | opthelp: | |
169 | BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); | |
170 | goto end; | |
171 | case OPT_HELP: | |
172 | opt_help(smime_options); | |
173 | ret = 0; | |
174 | goto end; | |
175 | case OPT_INFORM: | |
f47e5647 | 176 | if (!opt_format(opt_arg(), OPT_FMT_PDS, &informat)) |
7e1b7485 RS |
177 | goto opthelp; |
178 | break; | |
179 | case OPT_IN: | |
180 | infile = opt_arg(); | |
181 | break; | |
182 | case OPT_OUTFORM: | |
f47e5647 | 183 | if (!opt_format(opt_arg(), OPT_FMT_PDS, &outformat)) |
7e1b7485 RS |
184 | goto opthelp; |
185 | break; | |
186 | case OPT_OUT: | |
187 | outfile = opt_arg(); | |
188 | break; | |
189 | case OPT_ENCRYPT: | |
0f113f3e | 190 | operation = SMIME_ENCRYPT; |
7e1b7485 RS |
191 | break; |
192 | case OPT_DECRYPT: | |
0f113f3e | 193 | operation = SMIME_DECRYPT; |
7e1b7485 RS |
194 | break; |
195 | case OPT_SIGN: | |
0f113f3e | 196 | operation = SMIME_SIGN; |
7e1b7485 RS |
197 | break; |
198 | case OPT_RESIGN: | |
0f113f3e | 199 | operation = SMIME_RESIGN; |
7e1b7485 RS |
200 | break; |
201 | case OPT_VERIFY: | |
0f113f3e | 202 | operation = SMIME_VERIFY; |
7e1b7485 RS |
203 | break; |
204 | case OPT_PK7OUT: | |
0f113f3e | 205 | operation = SMIME_PK7OUT; |
7e1b7485 RS |
206 | break; |
207 | case OPT_TEXT: | |
0f113f3e | 208 | flags |= PKCS7_TEXT; |
7e1b7485 RS |
209 | break; |
210 | case OPT_NOINTERN: | |
0f113f3e | 211 | flags |= PKCS7_NOINTERN; |
7e1b7485 RS |
212 | break; |
213 | case OPT_NOVERIFY: | |
0f113f3e | 214 | flags |= PKCS7_NOVERIFY; |
7e1b7485 RS |
215 | break; |
216 | case OPT_NOCHAIN: | |
0f113f3e | 217 | flags |= PKCS7_NOCHAIN; |
7e1b7485 RS |
218 | break; |
219 | case OPT_NOCERTS: | |
0f113f3e | 220 | flags |= PKCS7_NOCERTS; |
7e1b7485 RS |
221 | break; |
222 | case OPT_NOATTR: | |
0f113f3e | 223 | flags |= PKCS7_NOATTR; |
7e1b7485 RS |
224 | break; |
225 | case OPT_NODETACH: | |
0f113f3e | 226 | flags &= ~PKCS7_DETACHED; |
7e1b7485 RS |
227 | break; |
228 | case OPT_NOSMIMECAP: | |
0f113f3e | 229 | flags |= PKCS7_NOSMIMECAP; |
7e1b7485 RS |
230 | break; |
231 | case OPT_BINARY: | |
0f113f3e | 232 | flags |= PKCS7_BINARY; |
7e1b7485 RS |
233 | break; |
234 | case OPT_NOSIGS: | |
0f113f3e | 235 | flags |= PKCS7_NOSIGS; |
7e1b7485 RS |
236 | break; |
237 | case OPT_STREAM: | |
238 | case OPT_INDEF: | |
0f113f3e | 239 | indef = 1; |
7e1b7485 RS |
240 | break; |
241 | case OPT_NOINDEF: | |
0f113f3e | 242 | indef = 0; |
7e1b7485 | 243 | break; |
7e1b7485 | 244 | case OPT_CRLFEOL: |
0f113f3e | 245 | flags |= PKCS7_CRLFEOL; |
2197494d | 246 | mime_eol = "\r\n"; |
7e1b7485 | 247 | break; |
3ee1eac2 RS |
248 | case OPT_R_CASES: |
249 | if (!opt_rand(o)) | |
250 | goto end; | |
7e1b7485 | 251 | break; |
6bd4e3f2 P |
252 | case OPT_PROV_CASES: |
253 | if (!opt_provider(o)) | |
254 | goto end; | |
255 | break; | |
90a1f2d7 SL |
256 | case OPT_CONFIG: |
257 | conf = app_load_config_modules(opt_arg()); | |
258 | if (conf == NULL) | |
259 | goto end; | |
260 | break; | |
7e1b7485 | 261 | case OPT_ENGINE: |
333b070e | 262 | e = setup_engine(opt_arg(), 0); |
7e1b7485 RS |
263 | break; |
264 | case OPT_PASSIN: | |
265 | passinarg = opt_arg(); | |
266 | break; | |
267 | case OPT_TO: | |
268 | to = opt_arg(); | |
269 | break; | |
270 | case OPT_FROM: | |
271 | from = opt_arg(); | |
272 | break; | |
273 | case OPT_SUBJECT: | |
274 | subject = opt_arg(); | |
275 | break; | |
276 | case OPT_SIGNER: | |
0f113f3e | 277 | /* If previous -signer argument add signer to list */ |
2234212c | 278 | if (signerfile != NULL) { |
7e1b7485 RS |
279 | if (sksigners == NULL |
280 | && (sksigners = sk_OPENSSL_STRING_new_null()) == NULL) | |
281 | goto end; | |
0f113f3e | 282 | sk_OPENSSL_STRING_push(sksigners, signerfile); |
7e1b7485 | 283 | if (keyfile == NULL) |
0f113f3e | 284 | keyfile = signerfile; |
7e1b7485 RS |
285 | if (skkeys == NULL |
286 | && (skkeys = sk_OPENSSL_STRING_new_null()) == NULL) | |
287 | goto end; | |
0f113f3e MC |
288 | sk_OPENSSL_STRING_push(skkeys, keyfile); |
289 | keyfile = NULL; | |
290 | } | |
7e1b7485 RS |
291 | signerfile = opt_arg(); |
292 | break; | |
293 | case OPT_RECIP: | |
294 | recipfile = opt_arg(); | |
295 | break; | |
296 | case OPT_MD: | |
d0190e11 | 297 | digestname = opt_arg(); |
7e1b7485 RS |
298 | break; |
299 | case OPT_CIPHER: | |
300 | if (!opt_cipher(opt_unknown(), &cipher)) | |
301 | goto opthelp; | |
302 | break; | |
303 | case OPT_INKEY: | |
ceab33e2 | 304 | /* If previous -inkey argument add signer to list */ |
2234212c | 305 | if (keyfile != NULL) { |
7e1b7485 RS |
306 | if (signerfile == NULL) { |
307 | BIO_printf(bio_err, | |
308 | "%s: Must have -signer before -inkey\n", prog); | |
309 | goto opthelp; | |
0f113f3e | 310 | } |
7e1b7485 RS |
311 | if (sksigners == NULL |
312 | && (sksigners = sk_OPENSSL_STRING_new_null()) == NULL) | |
313 | goto end; | |
0f113f3e MC |
314 | sk_OPENSSL_STRING_push(sksigners, signerfile); |
315 | signerfile = NULL; | |
7e1b7485 RS |
316 | if (skkeys == NULL |
317 | && (skkeys = sk_OPENSSL_STRING_new_null()) == NULL) | |
318 | goto end; | |
0f113f3e MC |
319 | sk_OPENSSL_STRING_push(skkeys, keyfile); |
320 | } | |
7e1b7485 RS |
321 | keyfile = opt_arg(); |
322 | break; | |
323 | case OPT_KEYFORM: | |
324 | if (!opt_format(opt_arg(), OPT_FMT_ANY, &keyform)) | |
325 | goto opthelp; | |
326 | break; | |
327 | case OPT_CERTFILE: | |
328 | certfile = opt_arg(); | |
329 | break; | |
330 | case OPT_CAFILE: | |
331 | CAfile = opt_arg(); | |
332 | break; | |
333 | case OPT_CAPATH: | |
334 | CApath = opt_arg(); | |
335 | break; | |
fd3397fc RL |
336 | case OPT_CASTORE: |
337 | CAstore = opt_arg(); | |
338 | break; | |
2b6bcb70 MC |
339 | case OPT_NOCAFILE: |
340 | noCAfile = 1; | |
341 | break; | |
342 | case OPT_NOCAPATH: | |
343 | noCApath = 1; | |
344 | break; | |
fd3397fc RL |
345 | case OPT_NOCASTORE: |
346 | noCAstore = 1; | |
347 | break; | |
7e1b7485 RS |
348 | case OPT_CONTENT: |
349 | contfile = opt_arg(); | |
350 | break; | |
351 | case OPT_V_CASES: | |
352 | if (!opt_verify(o, vpm)) | |
353 | goto opthelp; | |
354 | vpmtouched++; | |
355 | break; | |
356 | } | |
0f113f3e | 357 | } |
021410ea RS |
358 | |
359 | /* Extra arguments are files with recipient keys. */ | |
7e1b7485 RS |
360 | argc = opt_num_rest(); |
361 | argv = opt_rest(); | |
0f113f3e | 362 | |
51e5df0e | 363 | app_RAND_load(); |
d0190e11 RS |
364 | if (digestname != NULL) { |
365 | if (!opt_md(digestname, &sign_md)) | |
366 | goto opthelp; | |
367 | } | |
2234212c | 368 | if (!(operation & SMIME_SIGNERS) && (skkeys != NULL || sksigners != NULL)) { |
0f113f3e | 369 | BIO_puts(bio_err, "Multiple signers or keys not allowed\n"); |
7e1b7485 | 370 | goto opthelp; |
0f113f3e | 371 | } |
021410ea RS |
372 | if (!operation) { |
373 | BIO_puts(bio_err, | |
374 | "No operation (-encrypt|-sign|...) specified\n"); | |
375 | goto opthelp; | |
376 | } | |
0f113f3e MC |
377 | |
378 | if (operation & SMIME_SIGNERS) { | |
379 | /* Check to see if any final signer needs to be appended */ | |
380 | if (keyfile && !signerfile) { | |
381 | BIO_puts(bio_err, "Illegal -inkey without -signer\n"); | |
7e1b7485 | 382 | goto opthelp; |
0f113f3e | 383 | } |
2234212c PY |
384 | if (signerfile != NULL) { |
385 | if (sksigners == NULL | |
7e1b7485 RS |
386 | && (sksigners = sk_OPENSSL_STRING_new_null()) == NULL) |
387 | goto end; | |
0f113f3e | 388 | sk_OPENSSL_STRING_push(sksigners, signerfile); |
7e1b7485 RS |
389 | if (!skkeys && (skkeys = sk_OPENSSL_STRING_new_null()) == NULL) |
390 | goto end; | |
0f113f3e MC |
391 | if (!keyfile) |
392 | keyfile = signerfile; | |
393 | sk_OPENSSL_STRING_push(skkeys, keyfile); | |
394 | } | |
2234212c | 395 | if (sksigners == NULL) { |
0f113f3e | 396 | BIO_printf(bio_err, "No signer certificate specified\n"); |
7e1b7485 | 397 | goto opthelp; |
0f113f3e MC |
398 | } |
399 | signerfile = NULL; | |
400 | keyfile = NULL; | |
0f113f3e | 401 | } else if (operation == SMIME_DECRYPT) { |
2234212c | 402 | if (recipfile == NULL && keyfile == NULL) { |
0f113f3e MC |
403 | BIO_printf(bio_err, |
404 | "No recipient certificate or key specified\n"); | |
7e1b7485 | 405 | goto opthelp; |
0f113f3e MC |
406 | } |
407 | } else if (operation == SMIME_ENCRYPT) { | |
7e1b7485 | 408 | if (argc == 0) { |
0f113f3e | 409 | BIO_printf(bio_err, "No recipient(s) certificate(s) specified\n"); |
7e1b7485 | 410 | goto opthelp; |
0f113f3e | 411 | } |
2234212c | 412 | } |
7e1b7485 | 413 | |
7e1b7485 | 414 | if (!app_passwd(passinarg, NULL, &passin, NULL)) { |
0f113f3e MC |
415 | BIO_printf(bio_err, "Error getting password\n"); |
416 | goto end; | |
417 | } | |
418 | ||
0f113f3e MC |
419 | ret = 2; |
420 | ||
421 | if (!(operation & SMIME_SIGNERS)) | |
422 | flags &= ~PKCS7_DETACHED; | |
423 | ||
bdd58d98 | 424 | if (!(operation & SMIME_OP)) { |
0f113f3e | 425 | if (flags & PKCS7_BINARY) |
bdd58d98 | 426 | outformat = FORMAT_BINARY; |
0f113f3e MC |
427 | } |
428 | ||
bdd58d98 | 429 | if (!(operation & SMIME_IP)) { |
0f113f3e | 430 | if (flags & PKCS7_BINARY) |
bdd58d98 | 431 | informat = FORMAT_BINARY; |
0f113f3e MC |
432 | } |
433 | ||
434 | if (operation == SMIME_ENCRYPT) { | |
2234212c | 435 | if (cipher == NULL) { |
0f113f3e MC |
436 | #ifndef OPENSSL_NO_DES |
437 | cipher = EVP_des_ede3_cbc(); | |
63da21c0 | 438 | #else |
0f113f3e MC |
439 | BIO_printf(bio_err, "No cipher selected\n"); |
440 | goto end; | |
63da21c0 | 441 | #endif |
0f113f3e MC |
442 | } |
443 | encerts = sk_X509_new_null(); | |
2234212c | 444 | if (encerts == NULL) |
7e1b7485 | 445 | goto end; |
2234212c | 446 | while (*argv != NULL) { |
22dddfb9 | 447 | cert = load_cert(*argv, "recipient certificate file"); |
7e1b7485 | 448 | if (cert == NULL) |
0f113f3e | 449 | goto end; |
0f113f3e MC |
450 | sk_X509_push(encerts, cert); |
451 | cert = NULL; | |
7e1b7485 | 452 | argv++; |
0f113f3e MC |
453 | } |
454 | } | |
455 | ||
2234212c | 456 | if (certfile != NULL) { |
b3c5aadf | 457 | if (!load_certs(certfile, &other, NULL, "certificates")) { |
0f113f3e MC |
458 | ERR_print_errors(bio_err); |
459 | goto end; | |
460 | } | |
461 | } | |
462 | ||
2234212c | 463 | if (recipfile != NULL && (operation == SMIME_DECRYPT)) { |
22dddfb9 | 464 | if ((recip = load_cert(recipfile, |
a773b52a | 465 | "recipient certificate file")) == NULL) { |
0f113f3e MC |
466 | ERR_print_errors(bio_err); |
467 | goto end; | |
468 | } | |
469 | } | |
470 | ||
471 | if (operation == SMIME_DECRYPT) { | |
2234212c | 472 | if (keyfile == NULL) |
0f113f3e MC |
473 | keyfile = recipfile; |
474 | } else if (operation == SMIME_SIGN) { | |
2234212c | 475 | if (keyfile == NULL) |
0f113f3e | 476 | keyfile = signerfile; |
2234212c | 477 | } else { |
0f113f3e | 478 | keyfile = NULL; |
2234212c | 479 | } |
0f113f3e | 480 | |
2234212c | 481 | if (keyfile != NULL) { |
50eb2a50 | 482 | key = load_key(keyfile, keyform, 0, passin, e, "signing key"); |
2234212c | 483 | if (key == NULL) |
0f113f3e MC |
484 | goto end; |
485 | } | |
486 | ||
bdd58d98 | 487 | in = bio_open_default(infile, 'r', informat); |
7e1b7485 RS |
488 | if (in == NULL) |
489 | goto end; | |
0f113f3e MC |
490 | |
491 | if (operation & SMIME_IP) { | |
90a1f2d7 SL |
492 | PKCS7 *p7_in = NULL; |
493 | ||
7dc67708 | 494 | p7 = PKCS7_new_ex(libctx, app_get0_propq()); |
90a1f2d7 SL |
495 | if (p7 == NULL) { |
496 | BIO_printf(bio_err, "Error allocating PKCS7 object\n"); | |
497 | goto end; | |
498 | } | |
2234212c | 499 | if (informat == FORMAT_SMIME) { |
90a1f2d7 | 500 | p7_in = SMIME_read_PKCS7_ex(in, &indata, &p7); |
2234212c | 501 | } else if (informat == FORMAT_PEM) { |
90a1f2d7 | 502 | p7_in = PEM_read_bio_PKCS7(in, &p7, NULL, NULL); |
2234212c | 503 | } else if (informat == FORMAT_ASN1) { |
90a1f2d7 | 504 | p7_in = d2i_PKCS7_bio(in, &p7); |
2234212c | 505 | } else { |
0f113f3e MC |
506 | BIO_printf(bio_err, "Bad input format for PKCS#7 file\n"); |
507 | goto end; | |
508 | } | |
509 | ||
90a1f2d7 | 510 | if (p7_in == NULL) { |
0f113f3e MC |
511 | BIO_printf(bio_err, "Error reading S/MIME message\n"); |
512 | goto end; | |
513 | } | |
2234212c | 514 | if (contfile != NULL) { |
0f113f3e | 515 | BIO_free(indata); |
75ebbd9a | 516 | if ((indata = BIO_new_file(contfile, "rb")) == NULL) { |
0f113f3e MC |
517 | BIO_printf(bio_err, "Can't read content file %s\n", contfile); |
518 | goto end; | |
519 | } | |
520 | } | |
521 | } | |
522 | ||
bdd58d98 | 523 | out = bio_open_default(outfile, 'w', outformat); |
7e1b7485 RS |
524 | if (out == NULL) |
525 | goto end; | |
0f113f3e MC |
526 | |
527 | if (operation == SMIME_VERIFY) { | |
fd3397fc RL |
528 | if ((store = setup_verify(CAfile, noCAfile, CApath, noCApath, |
529 | CAstore, noCAstore)) == NULL) | |
0f113f3e MC |
530 | goto end; |
531 | X509_STORE_set_verify_cb(store, smime_cb); | |
7e1b7485 | 532 | if (vpmtouched) |
0f113f3e MC |
533 | X509_STORE_set1_param(store, vpm); |
534 | } | |
535 | ||
536 | ret = 3; | |
537 | ||
538 | if (operation == SMIME_ENCRYPT) { | |
539 | if (indef) | |
540 | flags |= PKCS7_STREAM; | |
7dc67708 | 541 | p7 = PKCS7_encrypt_ex(encerts, in, cipher, flags, libctx, app_get0_propq()); |
0f113f3e MC |
542 | } else if (operation & SMIME_SIGNERS) { |
543 | int i; | |
544 | /* | |
545 | * If detached data content we only enable streaming if S/MIME output | |
546 | * format. | |
547 | */ | |
548 | if (operation == SMIME_SIGN) { | |
549 | if (flags & PKCS7_DETACHED) { | |
550 | if (outformat == FORMAT_SMIME) | |
551 | flags |= PKCS7_STREAM; | |
2234212c | 552 | } else if (indef) { |
0f113f3e | 553 | flags |= PKCS7_STREAM; |
2234212c | 554 | } |
0f113f3e | 555 | flags |= PKCS7_PARTIAL; |
7dc67708 | 556 | p7 = PKCS7_sign_ex(NULL, NULL, other, in, flags, libctx, app_get0_propq()); |
2234212c | 557 | if (p7 == NULL) |
0f113f3e MC |
558 | goto end; |
559 | if (flags & PKCS7_NOCERTS) { | |
560 | for (i = 0; i < sk_X509_num(other); i++) { | |
561 | X509 *x = sk_X509_value(other, i); | |
562 | PKCS7_add_certificate(p7, x); | |
563 | } | |
564 | } | |
2234212c | 565 | } else { |
0f113f3e | 566 | flags |= PKCS7_REUSE_DIGEST; |
2234212c | 567 | } |
0f113f3e MC |
568 | for (i = 0; i < sk_OPENSSL_STRING_num(sksigners); i++) { |
569 | signerfile = sk_OPENSSL_STRING_value(sksigners, i); | |
570 | keyfile = sk_OPENSSL_STRING_value(skkeys, i); | |
22dddfb9 | 571 | signer = load_cert(signerfile, "signer certificate"); |
2234212c | 572 | if (signer == NULL) |
0f113f3e | 573 | goto end; |
50eb2a50 | 574 | key = load_key(keyfile, keyform, 0, passin, e, "signing key"); |
2234212c | 575 | if (key == NULL) |
0f113f3e | 576 | goto end; |
a10847c4 | 577 | |
0f113f3e MC |
578 | if (!PKCS7_sign_add_signer(p7, signer, key, sign_md, flags)) |
579 | goto end; | |
580 | X509_free(signer); | |
581 | signer = NULL; | |
582 | EVP_PKEY_free(key); | |
583 | key = NULL; | |
584 | } | |
585 | /* If not streaming or resigning finalize structure */ | |
586 | if ((operation == SMIME_SIGN) && !(flags & PKCS7_STREAM)) { | |
587 | if (!PKCS7_final(p7, in, flags)) | |
588 | goto end; | |
589 | } | |
590 | } | |
591 | ||
2234212c | 592 | if (p7 == NULL) { |
0f113f3e MC |
593 | BIO_printf(bio_err, "Error creating PKCS#7 structure\n"); |
594 | goto end; | |
595 | } | |
596 | ||
597 | ret = 4; | |
598 | if (operation == SMIME_DECRYPT) { | |
599 | if (!PKCS7_decrypt(p7, key, recip, out, flags)) { | |
600 | BIO_printf(bio_err, "Error decrypting PKCS#7 structure\n"); | |
601 | goto end; | |
602 | } | |
603 | } else if (operation == SMIME_VERIFY) { | |
604 | STACK_OF(X509) *signers; | |
605 | if (PKCS7_verify(p7, other, store, indata, out, flags)) | |
606 | BIO_printf(bio_err, "Verification successful\n"); | |
607 | else { | |
608 | BIO_printf(bio_err, "Verification failure\n"); | |
609 | goto end; | |
610 | } | |
611 | signers = PKCS7_get0_signers(p7, other, flags); | |
612 | if (!save_certs(signerfile, signers)) { | |
613 | BIO_printf(bio_err, "Error writing signers to %s\n", signerfile); | |
614 | ret = 5; | |
615 | goto end; | |
616 | } | |
617 | sk_X509_free(signers); | |
2234212c | 618 | } else if (operation == SMIME_PK7OUT) { |
0f113f3e | 619 | PEM_write_bio_PKCS7(out, p7); |
2234212c | 620 | } else { |
0f113f3e | 621 | if (to) |
2197494d | 622 | BIO_printf(out, "To: %s%s", to, mime_eol); |
0f113f3e | 623 | if (from) |
2197494d | 624 | BIO_printf(out, "From: %s%s", from, mime_eol); |
0f113f3e | 625 | if (subject) |
2197494d | 626 | BIO_printf(out, "Subject: %s%s", subject, mime_eol); |
0f113f3e MC |
627 | if (outformat == FORMAT_SMIME) { |
628 | if (operation == SMIME_RESIGN) | |
7e1b7485 | 629 | rv = SMIME_write_PKCS7(out, p7, indata, flags); |
0f113f3e | 630 | else |
7e1b7485 | 631 | rv = SMIME_write_PKCS7(out, p7, in, flags); |
2234212c | 632 | } else if (outformat == FORMAT_PEM) { |
7e1b7485 | 633 | rv = PEM_write_bio_PKCS7_stream(out, p7, in, flags); |
2234212c | 634 | } else if (outformat == FORMAT_ASN1) { |
7e1b7485 | 635 | rv = i2d_PKCS7_bio_stream(out, p7, in, flags); |
2234212c | 636 | } else { |
0f113f3e MC |
637 | BIO_printf(bio_err, "Bad output format for PKCS#7 file\n"); |
638 | goto end; | |
639 | } | |
7e1b7485 RS |
640 | if (rv == 0) { |
641 | BIO_printf(bio_err, "Error writing output\n"); | |
642 | ret = 3; | |
643 | goto end; | |
644 | } | |
0f113f3e MC |
645 | } |
646 | ret = 0; | |
647 | end: | |
0f113f3e MC |
648 | if (ret) |
649 | ERR_print_errors(bio_err); | |
650 | sk_X509_pop_free(encerts, X509_free); | |
651 | sk_X509_pop_free(other, X509_free); | |
222561fe | 652 | X509_VERIFY_PARAM_free(vpm); |
25aaa98a RS |
653 | sk_OPENSSL_STRING_free(sksigners); |
654 | sk_OPENSSL_STRING_free(skkeys); | |
0f113f3e MC |
655 | X509_STORE_free(store); |
656 | X509_free(cert); | |
657 | X509_free(recip); | |
658 | X509_free(signer); | |
659 | EVP_PKEY_free(key); | |
660 | PKCS7_free(p7); | |
dd1abd44 | 661 | release_engine(e); |
0f113f3e MC |
662 | BIO_free(in); |
663 | BIO_free(indata); | |
664 | BIO_free_all(out); | |
b548a1f1 | 665 | OPENSSL_free(passin); |
90a1f2d7 | 666 | NCONF_free(conf); |
26a7d938 | 667 | return ret; |
5a9a4b29 DSH |
668 | } |
669 | ||
a91451ef | 670 | static int save_certs(char *signerfile, STACK_OF(X509) *signers) |
0f113f3e MC |
671 | { |
672 | int i; | |
673 | BIO *tmp; | |
2234212c PY |
674 | |
675 | if (signerfile == NULL) | |
0f113f3e MC |
676 | return 1; |
677 | tmp = BIO_new_file(signerfile, "w"); | |
2234212c | 678 | if (tmp == NULL) |
0f113f3e MC |
679 | return 0; |
680 | for (i = 0; i < sk_X509_num(signers); i++) | |
681 | PEM_write_bio_X509(tmp, sk_X509_value(signers, i)); | |
682 | BIO_free(tmp); | |
683 | return 1; | |
684 | } | |
5d7c222d | 685 | |
5d7c222d DSH |
686 | /* Minimal callback just to output policy info (if any) */ |
687 | ||
688 | static int smime_cb(int ok, X509_STORE_CTX *ctx) | |
0f113f3e MC |
689 | { |
690 | int error; | |
5d7c222d | 691 | |
0f113f3e | 692 | error = X509_STORE_CTX_get_error(ctx); |
5d7c222d | 693 | |
0f113f3e MC |
694 | if ((error != X509_V_ERR_NO_EXPLICIT_POLICY) |
695 | && ((error != X509_V_OK) || (ok != 2))) | |
696 | return ok; | |
5d7c222d | 697 | |
ecf3a1fb | 698 | policies_print(ctx); |
5d7c222d | 699 | |
0f113f3e | 700 | return ok; |
0f113f3e | 701 | } |