X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=apps%2Fsmime.c;h=43d63704f99b664f74f4b289449a12f946f8e8fb;hp=adeba5c6d9b3252359ceece11cd3f6cdc748107e;hb=cac19d19e7d6f252ff9aea60d85e0c0fd71a117f;hpb=11afb40c011a789396d4e06682f73f55c33dff8a diff --git a/apps/smime.c b/apps/smime.c index adeba5c6d9..43d63704f9 100644 --- a/apps/smime.c +++ b/apps/smime.c @@ -1,59 +1,10 @@ -/* smime.c */ -/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL - * project 1999. - */ -/* ==================================================================== - * Copyright (c) 1999 The OpenSSL Project. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * - * 2. Redistributions in binary form must reproduce the above copyright - * notice, this list of conditions and the following disclaimer in - * the documentation and/or other materials provided with the - * distribution. - * - * 3. All advertising materials mentioning features or use of this - * software must display the following acknowledgment: - * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" - * - * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to - * endorse or promote products derived from this software without - * prior written permission. For written permission, please contact - * licensing@OpenSSL.org. - * - * 5. Products derived from this software may not be called "OpenSSL" - * nor may "OpenSSL" appear in their names without prior written - * permission of the OpenSSL Project. - * - * 6. Redistributions of any form whatsoever must retain the following - * acknowledgment: - * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" - * - * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY - * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE - * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR - * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR - * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT - * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; - * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) - * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, - * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED - * OF THE POSSIBILITY OF SUCH DAMAGE. - * ==================================================================== - * - * This product includes cryptographic software written by Eric Young - * (eay@cryptsoft.com). This product includes software written by Tim - * Hudson (tjh@cryptsoft.com). +/* + * Copyright 1999-2017 The OpenSSL Project Authors. All Rights Reserved. * + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html */ /* S/MIME utility function */ @@ -64,559 +15,632 @@ #include #include #include +#include +#include -#undef PROG -#define PROG smime_main -static X509 *load_cert(char *file); -static EVP_PKEY *load_key(char *file, char *pass); -static STACK_OF(X509) *load_certs(char *file); -static X509_STORE *setup_verify(char *CAfile, char *CApath); static int save_certs(char *signerfile, STACK_OF(X509) *signers); +static int smime_cb(int ok, X509_STORE_CTX *ctx); + +#define SMIME_OP 0x10 +#define SMIME_IP 0x20 +#define SMIME_SIGNERS 0x40 +#define SMIME_ENCRYPT (1 | SMIME_OP) +#define SMIME_DECRYPT (2 | SMIME_IP) +#define SMIME_SIGN (3 | SMIME_OP | SMIME_SIGNERS) +#define SMIME_VERIFY (4 | SMIME_IP) +#define SMIME_PK7OUT (5 | SMIME_IP | SMIME_OP) +#define SMIME_RESIGN (6 | SMIME_IP | SMIME_OP | SMIME_SIGNERS) + +typedef enum OPTION_choice { + OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, + OPT_ENCRYPT, OPT_DECRYPT, OPT_SIGN, OPT_RESIGN, OPT_VERIFY, + OPT_PK7OUT, OPT_TEXT, OPT_NOINTERN, OPT_NOVERIFY, OPT_NOCHAIN, + OPT_NOCERTS, OPT_NOATTR, OPT_NODETACH, OPT_NOSMIMECAP, + OPT_BINARY, OPT_NOSIGS, OPT_STREAM, OPT_INDEF, OPT_NOINDEF, + OPT_CRLFEOL, OPT_ENGINE, OPT_PASSIN, + OPT_TO, OPT_FROM, OPT_SUBJECT, OPT_SIGNER, OPT_RECIP, OPT_MD, + OPT_CIPHER, OPT_INKEY, OPT_KEYFORM, OPT_CERTFILE, OPT_CAFILE, + OPT_R_ENUM, + OPT_V_ENUM, + OPT_CAPATH, OPT_NOCAFILE, OPT_NOCAPATH, OPT_IN, OPT_INFORM, OPT_OUT, + OPT_OUTFORM, OPT_CONTENT +} OPTION_CHOICE; + +const OPTIONS smime_options[] = { + {OPT_HELP_STR, 1, '-', "Usage: %s [options] cert.pem...\n"}, + {OPT_HELP_STR, 1, '-', + " cert.pem... recipient certs for encryption\n"}, + {OPT_HELP_STR, 1, '-', "Valid options are:\n"}, + {"help", OPT_HELP, '-', "Display this summary"}, + {"encrypt", OPT_ENCRYPT, '-', "Encrypt message"}, + {"decrypt", OPT_DECRYPT, '-', "Decrypt encrypted message"}, + {"sign", OPT_SIGN, '-', "Sign message"}, + {"verify", OPT_VERIFY, '-', "Verify signed message"}, + {"pk7out", OPT_PK7OUT, '-', "Output PKCS#7 structure"}, + {"nointern", OPT_NOINTERN, '-', + "Don't search certificates in message for signer"}, + {"nosigs", OPT_NOSIGS, '-', "Don't verify message signature"}, + {"noverify", OPT_NOVERIFY, '-', "Don't verify signers certificate"}, + {"nocerts", OPT_NOCERTS, '-', + "Don't include signers certificate when signing"}, + {"nodetach", OPT_NODETACH, '-', "Use opaque signing"}, + {"noattr", OPT_NOATTR, '-', "Don't include any signed attributes"}, + {"binary", OPT_BINARY, '-', "Don't translate message to text"}, + {"certfile", OPT_CERTFILE, '<', "Other certificates file"}, + {"signer", OPT_SIGNER, 's', "Signer certificate file"}, + {"recip", OPT_RECIP, '<', "Recipient certificate file for decryption"}, + {"in", OPT_IN, '<', "Input file"}, + {"inform", OPT_INFORM, 'c', "Input format SMIME (default), PEM or DER"}, + {"inkey", OPT_INKEY, 's', + "Input private key (if not signer or recipient)"}, + {"keyform", OPT_KEYFORM, 'f', "Input private key format (PEM or ENGINE)"}, + {"out", OPT_OUT, '>', "Output file"}, + {"outform", OPT_OUTFORM, 'c', + "Output format SMIME (default), PEM or DER"}, + {"content", OPT_CONTENT, '<', + "Supply or override content for detached signature"}, + {"to", OPT_TO, 's', "To address"}, + {"from", OPT_FROM, 's', "From address"}, + {"subject", OPT_SUBJECT, 's', "Subject"}, + {"text", OPT_TEXT, '-', "Include or delete text MIME headers"}, + {"CApath", OPT_CAPATH, '/', "Trusted certificates directory"}, + {"CAfile", OPT_CAFILE, '<', "Trusted certificates file"}, + {"no-CAfile", OPT_NOCAFILE, '-', + "Do not load the default certificates file"}, + {"no-CApath", OPT_NOCAPATH, '-', + "Do not load certificates from the default certificates directory"}, + {"resign", OPT_RESIGN, '-', "Resign a signed message"}, + {"nochain", OPT_NOCHAIN, '-', + "set PKCS7_NOCHAIN so certificates contained in the message are not used as untrusted CAs" }, + {"nosmimecap", OPT_NOSMIMECAP, '-', "Omit the SMIMECapabilities attribute"}, + {"stream", OPT_STREAM, '-', "Enable CMS streaming" }, + {"indef", OPT_INDEF, '-', "Same as -stream" }, + {"noindef", OPT_NOINDEF, '-', "Disable CMS streaming"}, + {"crlfeol", OPT_CRLFEOL, '-', "Use CRLF as EOL termination instead of CR only"}, + OPT_R_OPTIONS, + {"passin", OPT_PASSIN, 's', "Input file pass phrase source"}, + {"md", OPT_MD, 's', "Digest algorithm to use when signing or resigning"}, + {"", OPT_CIPHER, '-', "Any supported cipher"}, + OPT_V_OPTIONS, +#ifndef OPENSSL_NO_ENGINE + {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"}, +#endif + {NULL} +}; -#define SMIME_OP 0x10 -#define SMIME_ENCRYPT (1 | SMIME_OP) -#define SMIME_DECRYPT 2 -#define SMIME_SIGN (3 | SMIME_OP) -#define SMIME_VERIFY 4 -#define SMIME_PK7OUT 5 - -int MAIN(int argc, char **argv) +int smime_main(int argc, char **argv) { - int operation = 0; - int ret = 0; - char **args; - char *inmode = "r", *outmode = "w"; - char *infile = NULL, *outfile = NULL; - char *signerfile = NULL, *recipfile = NULL; - char *certfile = NULL, *keyfile = NULL; - EVP_CIPHER *cipher = NULL; - PKCS7 *p7 = NULL; - X509_STORE *store = NULL; - X509 *cert = NULL, *recip = NULL, *signer = NULL; - EVP_PKEY *key = NULL; - STACK_OF(X509) *encerts = NULL, *other = NULL; - BIO *in = NULL, *out = NULL, *indata = NULL; - int badarg = 0; - int flags = PKCS7_DETACHED; - char *to = NULL, *from = NULL, *subject = NULL; - char *CAfile = NULL, *CApath = NULL, *passin = NULL; - - args = argv + 1; - - ret = 1; - - while (!badarg && *args && *args[0] == '-') { - if (!strcmp (*args, "-encrypt")) operation = SMIME_ENCRYPT; - else if (!strcmp (*args, "-decrypt")) operation = SMIME_DECRYPT; - else if (!strcmp (*args, "-sign")) operation = SMIME_SIGN; - else if (!strcmp (*args, "-verify")) operation = SMIME_VERIFY; - else if (!strcmp (*args, "-pk7out")) operation = SMIME_PK7OUT; -#ifndef NO_DES - else if (!strcmp (*args, "-des3")) - cipher = EVP_des_ede3_cbc(); - else if (!strcmp (*args, "-des")) - cipher = EVP_des_cbc(); -#endif -#ifndef NO_RC2 - else if (!strcmp (*args, "-rc2-40")) - cipher = EVP_rc2_40_cbc(); - else if (!strcmp (*args, "-rc2-128")) - cipher = EVP_rc2_cbc(); - else if (!strcmp (*args, "-rc2-64")) - cipher = EVP_rc2_64_cbc(); -#endif - else if (!strcmp (*args, "-text")) - flags |= PKCS7_TEXT; - else if (!strcmp (*args, "-nointern")) - flags |= PKCS7_NOINTERN; - else if (!strcmp (*args, "-noverify")) - flags |= PKCS7_NOVERIFY; - else if (!strcmp (*args, "-nochain")) - flags |= PKCS7_NOCHAIN; - else if (!strcmp (*args, "-nocerts")) - flags |= PKCS7_NOCERTS; - else if (!strcmp (*args, "-noattr")) - flags |= PKCS7_NOATTR; - else if (!strcmp (*args, "-nodetach")) - flags &= ~PKCS7_DETACHED; - else if (!strcmp (*args, "-binary")) - flags |= PKCS7_BINARY; - else if (!strcmp (*args, "-nosigs")) - flags |= PKCS7_NOSIGS; - else if (!strcmp(*argv,"-passin")) { - if (--argc < 1) badarg = 1; - else passin= *(++argv); - } else if (!strcmp(*argv,"-envpassin")) { - if (--argc < 1) badarg = 1; - else if(!(passin= getenv(*(++argv)))) { - BIO_printf(bio_err, - "Can't read environment variable %s\n", - *argv); - badarg = 1; - } - } else if (!strcmp (*args, "-to")) { - if (args[1]) { - args++; - to = *args; - } else badarg = 1; - } else if (!strcmp (*args, "-from")) { - if (args[1]) { - args++; - from = *args; - } else badarg = 1; - } else if (!strcmp (*args, "-subject")) { - if (args[1]) { - args++; - subject = *args; - } else badarg = 1; - } else if (!strcmp (*args, "-signer")) { - if (args[1]) { - args++; - signerfile = *args; - } else badarg = 1; - } else if (!strcmp (*args, "-recip")) { - if (args[1]) { - args++; - recipfile = *args; - } else badarg = 1; - } else if (!strcmp (*args, "-inkey")) { - if (args[1]) { - args++; - keyfile = *args; - } else badarg = 1; - } else if (!strcmp (*args, "-certfile")) { - if (args[1]) { - args++; - certfile = *args; - } else badarg = 1; - } else if (!strcmp (*args, "-CAfile")) { - if (args[1]) { - args++; - CAfile = *args; - } else badarg = 1; - } else if (!strcmp (*args, "-CApath")) { - if (args[1]) { - args++; - CApath = *args; - } else badarg = 1; - } else if (!strcmp (*args, "-in")) { - if (args[1]) { - args++; - infile = *args; - } else badarg = 1; - } else if (!strcmp (*args, "-out")) { - if (args[1]) { - args++; - outfile = *args; - } else badarg = 1; - } else badarg = 1; - args++; - } - - if(operation == SMIME_SIGN) { - if(!signerfile) { - BIO_printf(bio_err, "No signer certificate specified\n"); - badarg = 1; - } - } else if(operation == SMIME_DECRYPT) { - if(!recipfile) { - BIO_printf(bio_err, "No recipient certificate and key specified\n"); - badarg = 1; - } - } else if(operation == SMIME_ENCRYPT) { - if(!*args) { - BIO_printf(bio_err, "No recipient(s) certificate(s) specified\n"); - badarg = 1; - } - } else if(!operation) badarg = 1; - - if (badarg) { - BIO_printf (bio_err, "Usage smime [options] cert.pem ...\n"); - BIO_printf (bio_err, "where options are\n"); - BIO_printf (bio_err, "-encrypt encrypt message\n"); - BIO_printf (bio_err, "-decrypt decrypt encrypted message\n"); - BIO_printf (bio_err, "-sign sign message\n"); - BIO_printf (bio_err, "-verify verify signed message\n"); - BIO_printf (bio_err, "-pk7out output PKCS#7 structure\n"); -#ifndef NO_DES - BIO_printf (bio_err, "-des3 encrypt with triple DES\n"); - BIO_printf (bio_err, "-des encrypt with DES\n"); -#endif -#ifndef NO_RC2 - BIO_printf (bio_err, "-rc2-40 encrypt with RC2-40 (default)\n"); - BIO_printf (bio_err, "-rc2-64 encrypt with RC2-64\n"); - BIO_printf (bio_err, "-rc2-128 encrypt with RC2-128\n"); -#endif - BIO_printf (bio_err, "-nointern don't search certificates in message for signer\n"); - BIO_printf (bio_err, "-nosigs don't verify message signature\n"); - BIO_printf (bio_err, "-noverify don't verify signers certificate\n"); - BIO_printf (bio_err, "-nocerts don't include signers certificate when signing\n"); - BIO_printf (bio_err, "-nodetach use opaque signing\n"); - BIO_printf (bio_err, "-noattr don't include any signed attributes\n"); - BIO_printf (bio_err, "-binary don't translate message to text\n"); - BIO_printf (bio_err, "-certfile file other certificates file\n"); - BIO_printf (bio_err, "-signer file signer certificate file\n"); - BIO_printf (bio_err, "-recip file recipient certificate file for decryption\n"); - BIO_printf (bio_err, "-in file input file\n"); - BIO_printf (bio_err, "-inkey file input private key (if not signer or recipient)\n"); - BIO_printf (bio_err, "-out file output file\n"); - BIO_printf (bio_err, "-to addr to address\n"); - BIO_printf (bio_err, "-from ad from address\n"); - BIO_printf (bio_err, "-subject s subject\n"); - BIO_printf (bio_err, "-text include or delete text MIME headers\n"); - BIO_printf (bio_err, "-CApath dir trusted certificates directory\n"); - BIO_printf (bio_err, "-CAfile file trusted certificates file\n"); - BIO_printf (bio_err, "cert.pem recipient certificate(s) for encryption\n"); - goto end; - } - - ret = 2; - - if(operation != SMIME_SIGN) flags &= ~PKCS7_DETACHED; - - if(flags & PKCS7_BINARY) { - if(operation & SMIME_OP) inmode = "rb"; - else outmode = "rb"; - } - - if(operation == SMIME_ENCRYPT) { - if (!cipher) { -#ifndef NO_RC2 - cipher = EVP_rc2_40_cbc(); + BIO *in = NULL, *out = NULL, *indata = NULL; + EVP_PKEY *key = NULL; + PKCS7 *p7 = NULL; + STACK_OF(OPENSSL_STRING) *sksigners = NULL, *skkeys = NULL; + STACK_OF(X509) *encerts = NULL, *other = NULL; + X509 *cert = NULL, *recip = NULL, *signer = NULL; + X509_STORE *store = NULL; + X509_VERIFY_PARAM *vpm = NULL; + const EVP_CIPHER *cipher = NULL; + const EVP_MD *sign_md = NULL; + const char *CAfile = NULL, *CApath = NULL, *prog = NULL; + char *certfile = NULL, *keyfile = NULL, *contfile = NULL; + char *infile = NULL, *outfile = NULL, *signerfile = NULL, *recipfile = NULL; + char *passinarg = NULL, *passin = NULL, *to = NULL, *from = NULL, *subject = NULL; + OPTION_CHOICE o; + int noCApath = 0, noCAfile = 0; + int flags = PKCS7_DETACHED, operation = 0, ret = 0, indef = 0; + int informat = FORMAT_SMIME, outformat = FORMAT_SMIME, keyform = + FORMAT_PEM; + int vpmtouched = 0, rv = 0; + ENGINE *e = NULL; + const char *mime_eol = "\n"; + + if ((vpm = X509_VERIFY_PARAM_new()) == NULL) + return 1; + + prog = opt_init(argc, argv, smime_options); + while ((o = opt_next()) != OPT_EOF) { + switch (o) { + case OPT_EOF: + case OPT_ERR: + opthelp: + BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); + goto end; + case OPT_HELP: + opt_help(smime_options); + ret = 0; + goto end; + case OPT_INFORM: + if (!opt_format(opt_arg(), OPT_FMT_PDS, &informat)) + goto opthelp; + break; + case OPT_IN: + infile = opt_arg(); + break; + case OPT_OUTFORM: + if (!opt_format(opt_arg(), OPT_FMT_PDS, &outformat)) + goto opthelp; + break; + case OPT_OUT: + outfile = opt_arg(); + break; + case OPT_ENCRYPT: + operation = SMIME_ENCRYPT; + break; + case OPT_DECRYPT: + operation = SMIME_DECRYPT; + break; + case OPT_SIGN: + operation = SMIME_SIGN; + break; + case OPT_RESIGN: + operation = SMIME_RESIGN; + break; + case OPT_VERIFY: + operation = SMIME_VERIFY; + break; + case OPT_PK7OUT: + operation = SMIME_PK7OUT; + break; + case OPT_TEXT: + flags |= PKCS7_TEXT; + break; + case OPT_NOINTERN: + flags |= PKCS7_NOINTERN; + break; + case OPT_NOVERIFY: + flags |= PKCS7_NOVERIFY; + break; + case OPT_NOCHAIN: + flags |= PKCS7_NOCHAIN; + break; + case OPT_NOCERTS: + flags |= PKCS7_NOCERTS; + break; + case OPT_NOATTR: + flags |= PKCS7_NOATTR; + break; + case OPT_NODETACH: + flags &= ~PKCS7_DETACHED; + break; + case OPT_NOSMIMECAP: + flags |= PKCS7_NOSMIMECAP; + break; + case OPT_BINARY: + flags |= PKCS7_BINARY; + break; + case OPT_NOSIGS: + flags |= PKCS7_NOSIGS; + break; + case OPT_STREAM: + case OPT_INDEF: + indef = 1; + break; + case OPT_NOINDEF: + indef = 0; + break; + case OPT_CRLFEOL: + flags |= PKCS7_CRLFEOL; + mime_eol = "\r\n"; + break; + case OPT_R_CASES: + if (!opt_rand(o)) + goto end; + break; + case OPT_ENGINE: + e = setup_engine(opt_arg(), 0); + break; + case OPT_PASSIN: + passinarg = opt_arg(); + break; + case OPT_TO: + to = opt_arg(); + break; + case OPT_FROM: + from = opt_arg(); + break; + case OPT_SUBJECT: + subject = opt_arg(); + break; + case OPT_SIGNER: + /* If previous -signer argument add signer to list */ + if (signerfile != NULL) { + if (sksigners == NULL + && (sksigners = sk_OPENSSL_STRING_new_null()) == NULL) + goto end; + sk_OPENSSL_STRING_push(sksigners, signerfile); + if (keyfile == NULL) + keyfile = signerfile; + if (skkeys == NULL + && (skkeys = sk_OPENSSL_STRING_new_null()) == NULL) + goto end; + sk_OPENSSL_STRING_push(skkeys, keyfile); + keyfile = NULL; + } + signerfile = opt_arg(); + break; + case OPT_RECIP: + recipfile = opt_arg(); + break; + case OPT_MD: + if (!opt_md(opt_arg(), &sign_md)) + goto opthelp; + break; + case OPT_CIPHER: + if (!opt_cipher(opt_unknown(), &cipher)) + goto opthelp; + break; + case OPT_INKEY: + /* If previous -inkey argument add signer to list */ + if (keyfile != NULL) { + if (signerfile == NULL) { + BIO_printf(bio_err, + "%s: Must have -signer before -inkey\n", prog); + goto opthelp; + } + if (sksigners == NULL + && (sksigners = sk_OPENSSL_STRING_new_null()) == NULL) + goto end; + sk_OPENSSL_STRING_push(sksigners, signerfile); + signerfile = NULL; + if (skkeys == NULL + && (skkeys = sk_OPENSSL_STRING_new_null()) == NULL) + goto end; + sk_OPENSSL_STRING_push(skkeys, keyfile); + } + keyfile = opt_arg(); + break; + case OPT_KEYFORM: + if (!opt_format(opt_arg(), OPT_FMT_ANY, &keyform)) + goto opthelp; + break; + case OPT_CERTFILE: + certfile = opt_arg(); + break; + case OPT_CAFILE: + CAfile = opt_arg(); + break; + case OPT_CAPATH: + CApath = opt_arg(); + break; + case OPT_NOCAFILE: + noCAfile = 1; + break; + case OPT_NOCAPATH: + noCApath = 1; + break; + case OPT_CONTENT: + contfile = opt_arg(); + break; + case OPT_V_CASES: + if (!opt_verify(o, vpm)) + goto opthelp; + vpmtouched++; + break; + } + } + argc = opt_num_rest(); + argv = opt_rest(); + + if (!(operation & SMIME_SIGNERS) && (skkeys != NULL || sksigners != NULL)) { + BIO_puts(bio_err, "Multiple signers or keys not allowed\n"); + goto opthelp; + } + + if (operation & SMIME_SIGNERS) { + /* Check to see if any final signer needs to be appended */ + if (keyfile && !signerfile) { + BIO_puts(bio_err, "Illegal -inkey without -signer\n"); + goto opthelp; + } + if (signerfile != NULL) { + if (sksigners == NULL + && (sksigners = sk_OPENSSL_STRING_new_null()) == NULL) + goto end; + sk_OPENSSL_STRING_push(sksigners, signerfile); + if (!skkeys && (skkeys = sk_OPENSSL_STRING_new_null()) == NULL) + goto end; + if (!keyfile) + keyfile = signerfile; + sk_OPENSSL_STRING_push(skkeys, keyfile); + } + if (sksigners == NULL) { + BIO_printf(bio_err, "No signer certificate specified\n"); + goto opthelp; + } + signerfile = NULL; + keyfile = NULL; + } else if (operation == SMIME_DECRYPT) { + if (recipfile == NULL && keyfile == NULL) { + BIO_printf(bio_err, + "No recipient certificate or key specified\n"); + goto opthelp; + } + } else if (operation == SMIME_ENCRYPT) { + if (argc == 0) { + BIO_printf(bio_err, "No recipient(s) certificate(s) specified\n"); + goto opthelp; + } + } else if (!operation) { + goto opthelp; + } + + if (!app_passwd(passinarg, NULL, &passin, NULL)) { + BIO_printf(bio_err, "Error getting password\n"); + goto end; + } + + ret = 2; + + if (!(operation & SMIME_SIGNERS)) + flags &= ~PKCS7_DETACHED; + + if (!(operation & SMIME_OP)) { + if (flags & PKCS7_BINARY) + outformat = FORMAT_BINARY; + } + + if (!(operation & SMIME_IP)) { + if (flags & PKCS7_BINARY) + informat = FORMAT_BINARY; + } + + if (operation == SMIME_ENCRYPT) { + if (cipher == NULL) { +#ifndef OPENSSL_NO_DES + cipher = EVP_des_ede3_cbc(); #else - BIO_printf(bio_err, "No cipher selected\n"); - goto end; + BIO_printf(bio_err, "No cipher selected\n"); + goto end; #endif - } -#ifdef CRYPTO_MDEBUG - CRYPTO_push_info("load encryption certificates"); -#endif - encerts = sk_X509_new_null(); - while (*args) { - if(!(cert = load_cert(*args))) { - BIO_printf(bio_err, "Can't read recipent certificate file %s\n", *args); - goto end; - } - sk_X509_push(encerts, cert); - cert = NULL; - args++; - } -#ifdef CRYPTO_MDEBUG - CRYPTO_pop_info(); -#endif - } - - if(signerfile && (operation == SMIME_SIGN)) { -#ifdef CRYPTO_MDEBUG - CRYPTO_push_info("load signer certificate"); -#endif - if(!(signer = load_cert(signerfile))) { - BIO_printf(bio_err, "Can't read signer certificate file %s\n", signerfile); - goto end; - } -#ifdef CRYPTO_MDEBUG - CRYPTO_pop_info(); -#endif - } - - if(certfile) { -#ifdef CRYPTO_MDEBUG - CRYPTO_push_info("load other certfiles"); -#endif - if(!(other = load_certs(certfile))) { - BIO_printf(bio_err, "Can't read certificate file %s\n", certfile); - ERR_print_errors(bio_err); - goto end; - } -#ifdef CRYPTO_MDEBUG - CRYPTO_pop_info(); -#endif - } - - if(recipfile && (operation == SMIME_DECRYPT)) { -#ifdef CRYPTO_MDEBUG - CRYPTO_push_info("load recipient certificate"); -#endif - if(!(recip = load_cert(recipfile))) { - BIO_printf(bio_err, "Can't read recipient certificate file %s\n", recipfile); - ERR_print_errors(bio_err); - goto end; - } -#ifdef CRYPTO_MDEBUG - CRYPTO_pop_info(); -#endif - } - - if(operation == SMIME_DECRYPT) { - if(!keyfile) keyfile = recipfile; - } else if(operation == SMIME_SIGN) { - if(!keyfile) keyfile = signerfile; - } else keyfile = NULL; - - if(keyfile) { -#ifdef CRYPTO_MDEBUG - CRYPTO_push_info("load keyfile"); -#endif - if(!(key = load_key(keyfile, passin))) { - BIO_printf(bio_err, "Can't read recipient certificate file %s\n", keyfile); - ERR_print_errors(bio_err); - goto end; - } -#ifdef CRYPTO_MDEBUG - CRYPTO_pop_info(); -#endif - } - -#ifdef CRYPTO_MDEBUG - CRYPTO_push_info("open input files"); -#endif - if (infile) { - if (!(in = BIO_new_file(infile, inmode))) { - BIO_printf (bio_err, - "Can't open input file %s\n", infile); - goto end; - } - } else in = BIO_new_fp(stdin, BIO_NOCLOSE); -#ifdef CRYPTO_MDEBUG - CRYPTO_pop_info(); -#endif - -#ifdef CRYPTO_MDEBUG - CRYPTO_push_info("open output files"); -#endif - if (outfile) { - if (!(out = BIO_new_file(outfile, outmode))) { - BIO_printf (bio_err, - "Can't open output file %s\n", outfile); - goto end; - } - } else out = BIO_new_fp(stdout, BIO_NOCLOSE); -#ifdef CRYPTO_MDEBUG - CRYPTO_pop_info(); -#endif - - if(operation == SMIME_VERIFY) { -#ifdef CRYPTO_MDEBUG - CRYPTO_push_info("setup_verify"); -#endif - if(!(store = setup_verify(CAfile, CApath))) goto end; -#ifdef CRYPTO_MDEBUG - CRYPTO_pop_info(); -#endif - } - - ret = 3; - - if(operation == SMIME_ENCRYPT) { -#ifdef CRYPTO_MDEBUG - CRYPTO_push_info("PKCS7_encrypt"); -#endif - p7 = PKCS7_encrypt(encerts, in, cipher, flags); -#ifdef CRYPTO_MDEBUG - CRYPTO_pop_info(); -#endif - } else if(operation == SMIME_SIGN) { -#ifdef CRYPTO_MDEBUG - CRYPTO_push_info("PKCS7_sign"); -#endif - p7 = PKCS7_sign(signer, key, other, in, flags); - BIO_reset(in); -#ifdef CRYPTO_MDEBUG - CRYPTO_pop_info(); -#endif - } else { -#ifdef CRYPTO_MDEBUG - CRYPTO_push_info("SMIME_read_PKCS7"); -#endif - if(!(p7 = SMIME_read_PKCS7(in, &indata))) { - BIO_printf(bio_err, "Error reading S/MIME message\n"); - goto end; - } -#ifdef CRYPTO_MDEBUG - CRYPTO_pop_info(); -#endif - } - - if(!p7) { - BIO_printf(bio_err, "Error creating PKCS#7 structure\n"); - goto end; - } - - ret = 4; - if(operation == SMIME_DECRYPT) { -#ifdef CRYPTO_MDEBUG - CRYPTO_push_info("PKCS7_decrypt"); -#endif - if(!PKCS7_decrypt(p7, key, recip, out, flags)) { - BIO_printf(bio_err, "Error decrypting PKCS#7 structure\n"); - goto end; - } -#ifdef CRYPTO_MDEBUG - CRYPTO_pop_info(); -#endif - } else if(operation == SMIME_VERIFY) { - STACK_OF(X509) *signers; -#ifdef CRYPTO_MDEBUG - CRYPTO_push_info("PKCS7_verify"); -#endif - if(PKCS7_verify(p7, other, store, indata, out, flags)) { - BIO_printf(bio_err, "Verification Successful\n"); - } else { - BIO_printf(bio_err, "Verification Failure\n"); - goto end; - } -#ifdef CRYPTO_MDEBUG - CRYPTO_pop_info(); - CRYPTO_push_info("PKCS7_iget_signers"); -#endif - signers = PKCS7_iget_signers(p7, other, flags); -#ifdef CRYPTO_MDEBUG - CRYPTO_pop_info(); - CRYPTO_push_info("save_certs"); -#endif - if(!save_certs(signerfile, signers)) { - BIO_printf(bio_err, "Error writing signers to %s\n", - signerfile); - ret = 5; - goto end; - } -#ifdef CRYPTO_MDEBUG - CRYPTO_pop_info(); -#endif - sk_X509_free(signers); - } else if(operation == SMIME_PK7OUT) { - PEM_write_bio_PKCS7(out, p7); - } else { - if(to) BIO_printf(out, "To: %s\n", to); - if(from) BIO_printf(out, "From: %s\n", from); - if(subject) BIO_printf(out, "Subject: %s\n", subject); - SMIME_write_PKCS7(out, p7, in, flags); - } - ret = 0; -end: -#ifdef CRYPTO_MDEBUG - CRYPTO_remove_all_info(); -#endif - if(ret) ERR_print_errors(bio_err); - sk_X509_pop_free(encerts, X509_free); - sk_X509_pop_free(other, X509_free); - X509_STORE_free(store); - X509_free(cert); - X509_free(recip); - X509_free(signer); - EVP_PKEY_free(key); - PKCS7_free(p7); - BIO_free(in); - BIO_free(indata); - BIO_free(out); - return (ret); + } + encerts = sk_X509_new_null(); + if (encerts == NULL) + goto end; + while (*argv != NULL) { + cert = load_cert(*argv, FORMAT_PEM, + "recipient certificate file"); + if (cert == NULL) + goto end; + sk_X509_push(encerts, cert); + cert = NULL; + argv++; + } + } + + if (certfile != NULL) { + if (!load_certs(certfile, &other, FORMAT_PEM, NULL, + "certificate file")) { + ERR_print_errors(bio_err); + goto end; + } + } + + if (recipfile != NULL && (operation == SMIME_DECRYPT)) { + if ((recip = load_cert(recipfile, FORMAT_PEM, + "recipient certificate file")) == NULL) { + ERR_print_errors(bio_err); + goto end; + } + } + + if (operation == SMIME_DECRYPT) { + if (keyfile == NULL) + keyfile = recipfile; + } else if (operation == SMIME_SIGN) { + if (keyfile == NULL) + keyfile = signerfile; + } else { + keyfile = NULL; + } + + if (keyfile != NULL) { + key = load_key(keyfile, keyform, 0, passin, e, "signing key file"); + if (key == NULL) + goto end; + } + + in = bio_open_default(infile, 'r', informat); + if (in == NULL) + goto end; + + if (operation & SMIME_IP) { + if (informat == FORMAT_SMIME) { + p7 = SMIME_read_PKCS7(in, &indata); + } else if (informat == FORMAT_PEM) { + p7 = PEM_read_bio_PKCS7(in, NULL, NULL, NULL); + } else if (informat == FORMAT_ASN1) { + p7 = d2i_PKCS7_bio(in, NULL); + } else { + BIO_printf(bio_err, "Bad input format for PKCS#7 file\n"); + goto end; + } + + if (p7 == NULL) { + BIO_printf(bio_err, "Error reading S/MIME message\n"); + goto end; + } + if (contfile != NULL) { + BIO_free(indata); + if ((indata = BIO_new_file(contfile, "rb")) == NULL) { + BIO_printf(bio_err, "Can't read content file %s\n", contfile); + goto end; + } + } + } + + out = bio_open_default(outfile, 'w', outformat); + if (out == NULL) + goto end; + + if (operation == SMIME_VERIFY) { + if ((store = setup_verify(CAfile, CApath, noCAfile, noCApath)) == NULL) + goto end; + X509_STORE_set_verify_cb(store, smime_cb); + if (vpmtouched) + X509_STORE_set1_param(store, vpm); + } + + ret = 3; + + if (operation == SMIME_ENCRYPT) { + if (indef) + flags |= PKCS7_STREAM; + p7 = PKCS7_encrypt(encerts, in, cipher, flags); + } else if (operation & SMIME_SIGNERS) { + int i; + /* + * If detached data content we only enable streaming if S/MIME output + * format. + */ + if (operation == SMIME_SIGN) { + if (flags & PKCS7_DETACHED) { + if (outformat == FORMAT_SMIME) + flags |= PKCS7_STREAM; + } else if (indef) { + flags |= PKCS7_STREAM; + } + flags |= PKCS7_PARTIAL; + p7 = PKCS7_sign(NULL, NULL, other, in, flags); + if (p7 == NULL) + goto end; + if (flags & PKCS7_NOCERTS) { + for (i = 0; i < sk_X509_num(other); i++) { + X509 *x = sk_X509_value(other, i); + PKCS7_add_certificate(p7, x); + } + } + } else { + flags |= PKCS7_REUSE_DIGEST; + } + for (i = 0; i < sk_OPENSSL_STRING_num(sksigners); i++) { + signerfile = sk_OPENSSL_STRING_value(sksigners, i); + keyfile = sk_OPENSSL_STRING_value(skkeys, i); + signer = load_cert(signerfile, FORMAT_PEM, + "signer certificate"); + if (signer == NULL) + goto end; + key = load_key(keyfile, keyform, 0, passin, e, "signing key file"); + if (key == NULL) + goto end; + if (!PKCS7_sign_add_signer(p7, signer, key, sign_md, flags)) + goto end; + X509_free(signer); + signer = NULL; + EVP_PKEY_free(key); + key = NULL; + } + /* If not streaming or resigning finalize structure */ + if ((operation == SMIME_SIGN) && !(flags & PKCS7_STREAM)) { + if (!PKCS7_final(p7, in, flags)) + goto end; + } + } + + if (p7 == NULL) { + BIO_printf(bio_err, "Error creating PKCS#7 structure\n"); + goto end; + } + + ret = 4; + if (operation == SMIME_DECRYPT) { + if (!PKCS7_decrypt(p7, key, recip, out, flags)) { + BIO_printf(bio_err, "Error decrypting PKCS#7 structure\n"); + goto end; + } + } else if (operation == SMIME_VERIFY) { + STACK_OF(X509) *signers; + if (PKCS7_verify(p7, other, store, indata, out, flags)) + BIO_printf(bio_err, "Verification successful\n"); + else { + BIO_printf(bio_err, "Verification failure\n"); + goto end; + } + signers = PKCS7_get0_signers(p7, other, flags); + if (!save_certs(signerfile, signers)) { + BIO_printf(bio_err, "Error writing signers to %s\n", signerfile); + ret = 5; + goto end; + } + sk_X509_free(signers); + } else if (operation == SMIME_PK7OUT) { + PEM_write_bio_PKCS7(out, p7); + } else { + if (to) + BIO_printf(out, "To: %s%s", to, mime_eol); + if (from) + BIO_printf(out, "From: %s%s", from, mime_eol); + if (subject) + BIO_printf(out, "Subject: %s%s", subject, mime_eol); + if (outformat == FORMAT_SMIME) { + if (operation == SMIME_RESIGN) + rv = SMIME_write_PKCS7(out, p7, indata, flags); + else + rv = SMIME_write_PKCS7(out, p7, in, flags); + } else if (outformat == FORMAT_PEM) { + rv = PEM_write_bio_PKCS7_stream(out, p7, in, flags); + } else if (outformat == FORMAT_ASN1) { + rv = i2d_PKCS7_bio_stream(out, p7, in, flags); + } else { + BIO_printf(bio_err, "Bad output format for PKCS#7 file\n"); + goto end; + } + if (rv == 0) { + BIO_printf(bio_err, "Error writing output\n"); + ret = 3; + goto end; + } + } + ret = 0; + end: + if (ret) + ERR_print_errors(bio_err); + sk_X509_pop_free(encerts, X509_free); + sk_X509_pop_free(other, X509_free); + X509_VERIFY_PARAM_free(vpm); + sk_OPENSSL_STRING_free(sksigners); + sk_OPENSSL_STRING_free(skkeys); + X509_STORE_free(store); + X509_free(cert); + X509_free(recip); + X509_free(signer); + EVP_PKEY_free(key); + PKCS7_free(p7); + release_engine(e); + BIO_free(in); + BIO_free(indata); + BIO_free_all(out); + OPENSSL_free(passin); + return ret; } -static X509 *load_cert(char *file) +static int save_certs(char *signerfile, STACK_OF(X509) *signers) { - BIO *in; - X509 *cert; - if(!(in = BIO_new_file(file, "r"))) return NULL; - cert = PEM_read_bio_X509(in, NULL, NULL,NULL); - BIO_free(in); - return cert; + int i; + BIO *tmp; + + if (signerfile == NULL) + return 1; + tmp = BIO_new_file(signerfile, "w"); + if (tmp == NULL) + return 0; + for (i = 0; i < sk_X509_num(signers); i++) + PEM_write_bio_X509(tmp, sk_X509_value(signers, i)); + BIO_free(tmp); + return 1; } -static EVP_PKEY *load_key(char *file, char *pass) -{ - BIO *in; - EVP_PKEY *key; - if(!(in = BIO_new_file(file, "r"))) return NULL; - key = PEM_read_bio_PrivateKey(in, NULL,PEM_cb,pass); - BIO_free(in); - return key; -} +/* Minimal callback just to output policy info (if any) */ -static STACK_OF(X509) *load_certs(char *file) +static int smime_cb(int ok, X509_STORE_CTX *ctx) { - BIO *in; - int i; - STACK_OF(X509) *othercerts; - STACK_OF(X509_INFO) *allcerts; - X509_INFO *xi; - if(!(in = BIO_new_file(file, "r"))) return NULL; - othercerts = sk_X509_new(NULL); - if(!othercerts) return NULL; - allcerts = PEM_X509_INFO_read_bio(in, NULL, NULL, NULL); - for(i = 0; i < sk_X509_INFO_num(allcerts); i++) { - xi = sk_X509_INFO_value (allcerts, i); - if (xi->x509) { - sk_X509_push(othercerts, xi->x509); - xi->x509 = NULL; - } - } - sk_X509_INFO_pop_free(allcerts, X509_INFO_free); - BIO_free(in); - return othercerts; -} + int error; -static X509_STORE *setup_verify(char *CAfile, char *CApath) -{ - X509_STORE *store; - X509_LOOKUP *lookup; -#ifdef CRYPTO_MDEBUG - CRYPTO_push_info("X509_STORE_new"); -#endif - if(!(store = X509_STORE_new())) goto end; -#ifdef CRYPTO_MDEBUG - CRYPTO_pop_info(); - CRYPTO_push_info("X509_STORE_add_lookup(...file)"); -#endif - lookup=X509_STORE_add_lookup(store,X509_LOOKUP_file()); - if (lookup == NULL) goto end; -#ifdef CRYPTO_MDEBUG - CRYPTO_pop_info(); - CRYPTO_push_info("X509_LOOKUP_load_file"); -#endif - if (CAfile) { - if(!X509_LOOKUP_load_file(lookup,CAfile,X509_FILETYPE_PEM)) { - BIO_printf(bio_err, "Error loading file %s\n", CAfile); - goto end; - } - } else X509_LOOKUP_load_file(lookup,NULL,X509_FILETYPE_DEFAULT); - -#ifdef CRYPTO_MDEBUG - CRYPTO_pop_info(); - CRYPTO_push_info("X509_STORE_add_lookup(...hash_dir)"); -#endif - lookup=X509_STORE_add_lookup(store,X509_LOOKUP_hash_dir()); - if (lookup == NULL) goto end; -#ifdef CRYPTO_MDEBUG - CRYPTO_pop_info(); - CRYPTO_push_info("X509_LOOKUP_add_dir"); -#endif - if (CApath) { - if(!X509_LOOKUP_add_dir(lookup,CApath,X509_FILETYPE_PEM)) { - BIO_printf(bio_err, "Error loading directory %s\n", CApath); - goto end; - } - } else X509_LOOKUP_add_dir(lookup,NULL,X509_FILETYPE_DEFAULT); -#ifdef CRYPTO_MDEBUG - CRYPTO_pop_info(); -#endif - - ERR_clear_error(); - return store; - end: - X509_STORE_free(store); - return NULL; -} + error = X509_STORE_CTX_get_error(ctx); -int save_certs(char *signerfile, STACK_OF(X509) *signers) -{ - int i; - BIO *tmp; - if(!signerfile) return 1; - tmp = BIO_new_file(signerfile, "w"); - if(!tmp) return 0; - for(i = 0; i < sk_X509_num(signers); i++) - PEM_write_bio_X509(tmp, sk_X509_value(signers, i)); - BIO_free(tmp); - return 1; + if ((error != X509_V_ERR_NO_EXPLICIT_POLICY) + && ((error != X509_V_OK) || (ok != 2))) + return ok; + + policies_print(ctx); + + return ok; } -