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-rw-r--r--openssl/apps/smime.c857
1 files changed, 857 insertions, 0 deletions
diff --git a/openssl/apps/smime.c b/openssl/apps/smime.c
new file mode 100644
index 00000000..c583f8a0
--- /dev/null
+++ b/openssl/apps/smime.c
@@ -0,0 +1,857 @@
+/* smime.c */
+/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
+ * project.
+ */
+/* ====================================================================
+ * Copyright (c) 1999-2004 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).
+ *
+ */
+
+/* S/MIME utility function */
+
+#include <stdio.h>
+#include <string.h>
+#include "apps.h"
+#include <openssl/crypto.h>
+#include <openssl/pem.h>
+#include <openssl/err.h>
+#include <openssl/x509_vfy.h>
+#include <openssl/x509v3.h>
+
+#undef PROG
+#define PROG smime_main
+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)
+
+int MAIN(int, char **);
+
+int MAIN(int argc, char **argv)
+ {
+ ENGINE *e = NULL;
+ int operation = 0;
+ int ret = 0;
+ char **args;
+ const char *inmode = "r", *outmode = "w";
+ char *infile = NULL, *outfile = NULL;
+ char *signerfile = NULL, *recipfile = NULL;
+ STACK_OF(OPENSSL_STRING) *sksigners = NULL, *skkeys = NULL;
+ char *certfile = NULL, *keyfile = NULL, *contfile=NULL;
+ const 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;
+ char *passargin = NULL, *passin = NULL;
+ char *inrand = NULL;
+ int need_rand = 0;
+ int indef = 0;
+ const EVP_MD *sign_md = NULL;
+ int informat = FORMAT_SMIME, outformat = FORMAT_SMIME;
+ int keyform = FORMAT_PEM;
+#ifndef OPENSSL_NO_ENGINE
+ char *engine=NULL;
+#endif
+
+ X509_VERIFY_PARAM *vpm = NULL;
+
+ args = argv + 1;
+ ret = 1;
+
+ apps_startup();
+
+ if (bio_err == NULL)
+ {
+ if ((bio_err = BIO_new(BIO_s_file())) != NULL)
+ BIO_set_fp(bio_err, stderr, BIO_NOCLOSE|BIO_FP_TEXT);
+ }
+
+ if (!load_config(bio_err, NULL))
+ goto end;
+
+ 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, "-resign"))
+ operation = SMIME_RESIGN;
+ else if (!strcmp (*args, "-verify"))
+ operation = SMIME_VERIFY;
+ else if (!strcmp (*args, "-pk7out"))
+ operation = SMIME_PK7OUT;
+#ifndef OPENSSL_NO_DES
+ else if (!strcmp (*args, "-des3"))
+ cipher = EVP_des_ede3_cbc();
+ else if (!strcmp (*args, "-des"))
+ cipher = EVP_des_cbc();
+#endif
+#ifndef OPENSSL_NO_SEED
+ else if (!strcmp (*args, "-seed"))
+ cipher = EVP_seed_cbc();
+#endif
+#ifndef OPENSSL_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
+#ifndef OPENSSL_NO_AES
+ else if (!strcmp(*args,"-aes128"))
+ cipher = EVP_aes_128_cbc();
+ else if (!strcmp(*args,"-aes192"))
+ cipher = EVP_aes_192_cbc();
+ else if (!strcmp(*args,"-aes256"))
+ cipher = EVP_aes_256_cbc();
+#endif
+#ifndef OPENSSL_NO_CAMELLIA
+ else if (!strcmp(*args,"-camellia128"))
+ cipher = EVP_camellia_128_cbc();
+ else if (!strcmp(*args,"-camellia192"))
+ cipher = EVP_camellia_192_cbc();
+ else if (!strcmp(*args,"-camellia256"))
+ cipher = EVP_camellia_256_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, "-nosmimecap"))
+ flags |= PKCS7_NOSMIMECAP;
+ else if (!strcmp (*args, "-binary"))
+ flags |= PKCS7_BINARY;
+ else if (!strcmp (*args, "-nosigs"))
+ flags |= PKCS7_NOSIGS;
+ else if (!strcmp (*args, "-stream"))
+ indef = 1;
+ else if (!strcmp (*args, "-indef"))
+ indef = 1;
+ else if (!strcmp (*args, "-noindef"))
+ indef = 0;
+ else if (!strcmp (*args, "-nooldmime"))
+ flags |= PKCS7_NOOLDMIMETYPE;
+ else if (!strcmp (*args, "-crlfeol"))
+ flags |= PKCS7_CRLFEOL;
+ else if (!strcmp(*args,"-rand"))
+ {
+ if (!args[1])
+ goto argerr;
+ args++;
+ inrand = *args;
+ need_rand = 1;
+ }
+#ifndef OPENSSL_NO_ENGINE
+ else if (!strcmp(*args,"-engine"))
+ {
+ if (!args[1])
+ goto argerr;
+ engine = *++args;
+ }
+#endif
+ else if (!strcmp(*args,"-passin"))
+ {
+ if (!args[1])
+ goto argerr;
+ passargin = *++args;
+ }
+ else if (!strcmp (*args, "-to"))
+ {
+ if (!args[1])
+ goto argerr;
+ to = *++args;
+ }
+ else if (!strcmp (*args, "-from"))
+ {
+ if (!args[1])
+ goto argerr;
+ from = *++args;
+ }
+ else if (!strcmp (*args, "-subject"))
+ {
+ if (!args[1])
+ goto argerr;
+ subject = *++args;
+ }
+ else if (!strcmp (*args, "-signer"))
+ {
+ if (!args[1])
+ goto argerr;
+ /* If previous -signer argument add signer to list */
+
+ if (signerfile)
+ {
+ if (!sksigners)
+ sksigners = sk_OPENSSL_STRING_new_null();
+ sk_OPENSSL_STRING_push(sksigners, signerfile);
+ if (!keyfile)
+ keyfile = signerfile;
+ if (!skkeys)
+ skkeys = sk_OPENSSL_STRING_new_null();
+ sk_OPENSSL_STRING_push(skkeys, keyfile);
+ keyfile = NULL;
+ }
+ signerfile = *++args;
+ }
+ else if (!strcmp (*args, "-recip"))
+ {
+ if (!args[1])
+ goto argerr;
+ recipfile = *++args;
+ }
+ else if (!strcmp (*args, "-md"))
+ {
+ if (!args[1])
+ goto argerr;
+ sign_md = EVP_get_digestbyname(*++args);
+ if (sign_md == NULL)
+ {
+ BIO_printf(bio_err, "Unknown digest %s\n",
+ *args);
+ goto argerr;
+ }
+ }
+ else if (!strcmp (*args, "-inkey"))
+ {
+ if (!args[1])
+ goto argerr;
+ /* If previous -inkey arument add signer to list */
+ if (keyfile)
+ {
+ if (!signerfile)
+ {
+ BIO_puts(bio_err, "Illegal -inkey without -signer\n");
+ goto argerr;
+ }
+ if (!sksigners)
+ sksigners = sk_OPENSSL_STRING_new_null();
+ sk_OPENSSL_STRING_push(sksigners, signerfile);
+ signerfile = NULL;
+ if (!skkeys)
+ skkeys = sk_OPENSSL_STRING_new_null();
+ sk_OPENSSL_STRING_push(skkeys, keyfile);
+ }
+ keyfile = *++args;
+ }
+ else if (!strcmp (*args, "-keyform"))
+ {
+ if (!args[1])
+ goto argerr;
+ keyform = str2fmt(*++args);
+ }
+ else if (!strcmp (*args, "-certfile"))
+ {
+ if (!args[1])
+ goto argerr;
+ certfile = *++args;
+ }
+ else if (!strcmp (*args, "-CAfile"))
+ {
+ if (!args[1])
+ goto argerr;
+ CAfile = *++args;
+ }
+ else if (!strcmp (*args, "-CApath"))
+ {
+ if (!args[1])
+ goto argerr;
+ CApath = *++args;
+ }
+ else if (!strcmp (*args, "-in"))
+ {
+ if (!args[1])
+ goto argerr;
+ infile = *++args;
+ }
+ else if (!strcmp (*args, "-inform"))
+ {
+ if (!args[1])
+ goto argerr;
+ informat = str2fmt(*++args);
+ }
+ else if (!strcmp (*args, "-outform"))
+ {
+ if (!args[1])
+ goto argerr;
+ outformat = str2fmt(*++args);
+ }
+ else if (!strcmp (*args, "-out"))
+ {
+ if (!args[1])
+ goto argerr;
+ outfile = *++args;
+ }
+ else if (!strcmp (*args, "-content"))
+ {
+ if (!args[1])
+ goto argerr;
+ contfile = *++args;
+ }
+ else if (args_verify(&args, NULL, &badarg, bio_err, &vpm))
+ continue;
+ else if ((cipher = EVP_get_cipherbyname(*args + 1)) == NULL)
+ badarg = 1;
+ args++;
+ }
+
+ if (!(operation & SMIME_SIGNERS) && (skkeys || sksigners))
+ {
+ BIO_puts(bio_err, "Multiple signers or keys not allowed\n");
+ goto argerr;
+ }
+
+ 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 argerr;
+ }
+ if (signerfile)
+ {
+ if (!sksigners)
+ sksigners = sk_OPENSSL_STRING_new_null();
+ sk_OPENSSL_STRING_push(sksigners, signerfile);
+ if (!skkeys)
+ skkeys = sk_OPENSSL_STRING_new_null();
+ if (!keyfile)
+ keyfile = signerfile;
+ sk_OPENSSL_STRING_push(skkeys, keyfile);
+ }
+ if (!sksigners)
+ {
+ BIO_printf(bio_err, "No signer certificate specified\n");
+ badarg = 1;
+ }
+ signerfile = NULL;
+ keyfile = NULL;
+ need_rand = 1;
+ }
+ else if (operation == SMIME_DECRYPT)
+ {
+ if (!recipfile && !keyfile)
+ {
+ BIO_printf(bio_err, "No recipient certificate or 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;
+ }
+ need_rand = 1;
+ }
+ else if (!operation)
+ badarg = 1;
+
+ if (badarg)
+ {
+ argerr:
+ 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 OPENSSL_NO_DES
+ BIO_printf (bio_err, "-des3 encrypt with triple DES\n");
+ BIO_printf (bio_err, "-des encrypt with DES\n");
+#endif
+#ifndef OPENSSL_NO_SEED
+ BIO_printf (bio_err, "-seed encrypt with SEED\n");
+#endif
+#ifndef OPENSSL_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
+#ifndef OPENSSL_NO_AES
+ BIO_printf (bio_err, "-aes128, -aes192, -aes256\n");
+ BIO_printf (bio_err, " encrypt PEM output with cbc aes\n");
+#endif
+#ifndef OPENSSL_NO_CAMELLIA
+ BIO_printf (bio_err, "-camellia128, -camellia192, -camellia256\n");
+ BIO_printf (bio_err, " encrypt PEM output with cbc camellia\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, "-inform arg input format SMIME (default), PEM or DER\n");
+ BIO_printf (bio_err, "-inkey file input private key (if not signer or recipient)\n");
+ BIO_printf (bio_err, "-keyform arg input private key format (PEM or ENGINE)\n");
+ BIO_printf (bio_err, "-out file output file\n");
+ BIO_printf (bio_err, "-outform arg output format SMIME (default), PEM or DER\n");
+ BIO_printf (bio_err, "-content file supply or override content for detached signature\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, "-crl_check check revocation status of signer's certificate using CRLs\n");
+ BIO_printf (bio_err, "-crl_check_all check revocation status of signer's certificate chain using CRLs\n");
+#ifndef OPENSSL_NO_ENGINE
+ BIO_printf (bio_err, "-engine e use engine e, possibly a hardware device.\n");
+#endif
+ BIO_printf (bio_err, "-passin arg input file pass phrase source\n");
+ BIO_printf(bio_err, "-rand file%cfile%c...\n", LIST_SEPARATOR_CHAR, LIST_SEPARATOR_CHAR);
+ BIO_printf(bio_err, " load the file (or the files in the directory) into\n");
+ BIO_printf(bio_err, " the random number generator\n");
+ BIO_printf (bio_err, "cert.pem recipient certificate(s) for encryption\n");
+ goto end;
+ }
+
+#ifndef OPENSSL_NO_ENGINE
+ e = setup_engine(bio_err, engine, 0);
+#endif
+
+ if (!app_passwd(bio_err, passargin, NULL, &passin, NULL))
+ {
+ BIO_printf(bio_err, "Error getting password\n");
+ goto end;
+ }
+
+ if (need_rand)
+ {
+ app_RAND_load_file(NULL, bio_err, (inrand != NULL));
+ if (inrand != NULL)
+ BIO_printf(bio_err,"%ld semi-random bytes loaded\n",
+ app_RAND_load_files(inrand));
+ }
+
+ ret = 2;
+
+ if (!(operation & SMIME_SIGNERS))
+ flags &= ~PKCS7_DETACHED;
+
+ if (operation & SMIME_OP)
+ {
+ if (outformat == FORMAT_ASN1)
+ outmode = "wb";
+ }
+ else
+ {
+ if (flags & PKCS7_BINARY)
+ outmode = "wb";
+ }
+
+ if (operation & SMIME_IP)
+ {
+ if (informat == FORMAT_ASN1)
+ inmode = "rb";
+ }
+ else
+ {
+ if (flags & PKCS7_BINARY)
+ inmode = "rb";
+ }
+
+ if (operation == SMIME_ENCRYPT)
+ {
+ if (!cipher)
+ {
+#ifndef OPENSSL_NO_RC2
+ cipher = EVP_rc2_40_cbc();
+#else
+ BIO_printf(bio_err, "No cipher selected\n");
+ goto end;
+#endif
+ }
+ encerts = sk_X509_new_null();
+ while (*args)
+ {
+ if (!(cert = load_cert(bio_err,*args,FORMAT_PEM,
+ NULL, e, "recipient certificate file")))
+ {
+#if 0 /* An appropriate message is already printed */
+ BIO_printf(bio_err, "Can't read recipient certificate file %s\n", *args);
+#endif
+ goto end;
+ }
+ sk_X509_push(encerts, cert);
+ cert = NULL;
+ args++;
+ }
+ }
+
+ if (certfile)
+ {
+ if (!(other = load_certs(bio_err,certfile,FORMAT_PEM, NULL,
+ e, "certificate file")))
+ {
+ ERR_print_errors(bio_err);
+ goto end;
+ }
+ }
+
+ if (recipfile && (operation == SMIME_DECRYPT))
+ {
+ if (!(recip = load_cert(bio_err,recipfile,FORMAT_PEM,NULL,
+ e, "recipient certificate file")))
+ {
+ ERR_print_errors(bio_err);
+ goto end;
+ }
+ }
+
+ if (operation == SMIME_DECRYPT)
+ {
+ if (!keyfile)
+ keyfile = recipfile;
+ }
+ else if (operation == SMIME_SIGN)
+ {
+ if (!keyfile)
+ keyfile = signerfile;
+ }
+ else keyfile = NULL;
+
+ if (keyfile)
+ {
+ key = load_key(bio_err, keyfile, keyform, 0, passin, e,
+ "signing key file");
+ if (!key)
+ goto end;
+ }
+
+ 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);
+
+ 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)
+ {
+ BIO_printf(bio_err, "Error reading S/MIME message\n");
+ goto end;
+ }
+ if (contfile)
+ {
+ BIO_free(indata);
+ if (!(indata = BIO_new_file(contfile, "rb")))
+ {
+ BIO_printf(bio_err, "Can't read content file %s\n", contfile);
+ goto end;
+ }
+ }
+ }
+
+ 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 OPENSSL_SYS_VMS
+ {
+ BIO *tmpbio = BIO_new(BIO_f_linebuffer());
+ out = BIO_push(tmpbio, out);
+ }
+#endif
+ }
+
+ if (operation == SMIME_VERIFY)
+ {
+ if (!(store = setup_verify(bio_err, CAfile, CApath)))
+ goto end;
+ X509_STORE_set_verify_cb(store, smime_cb);
+ if (vpm)
+ 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)
+ goto end;
+ }
+ 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(bio_err, signerfile,FORMAT_PEM, NULL,
+ e, "signer certificate");
+ if (!signer)
+ goto end;
+ key = load_key(bio_err, keyfile, keyform, 0, passin, e,
+ "signing key file");
+ if (!key)
+ 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)
+ {
+ 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\n", to);
+ if (from)
+ BIO_printf(out, "From: %s\n", from);
+ if (subject)
+ BIO_printf(out, "Subject: %s\n", subject);
+ if (outformat == FORMAT_SMIME)
+ {
+ if (operation == SMIME_RESIGN)
+ SMIME_write_PKCS7(out, p7, indata, flags);
+ else
+ SMIME_write_PKCS7(out, p7, in, flags);
+ }
+ else if (outformat == FORMAT_PEM)
+ PEM_write_bio_PKCS7_stream(out, p7, in, flags);
+ else if (outformat == FORMAT_ASN1)
+ i2d_PKCS7_bio_stream(out,p7, in, flags);
+ else
+ {
+ BIO_printf(bio_err, "Bad output format for PKCS#7 file\n");
+ goto end;
+ }
+ }
+ ret = 0;
+end:
+ if (need_rand)
+ app_RAND_write_file(NULL, bio_err);
+ if (ret) ERR_print_errors(bio_err);
+ sk_X509_pop_free(encerts, X509_free);
+ sk_X509_pop_free(other, X509_free);
+ if (vpm)
+ X509_VERIFY_PARAM_free(vpm);
+ if (sksigners)
+ sk_OPENSSL_STRING_free(sksigners);
+ if (skkeys)
+ 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);
+ BIO_free(in);
+ BIO_free(indata);
+ BIO_free_all(out);
+ if (passin) OPENSSL_free(passin);
+ return (ret);
+}
+
+static 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;
+ }
+
+
+/* Minimal callback just to output policy info (if any) */
+
+static int smime_cb(int ok, X509_STORE_CTX *ctx)
+ {
+ int error;
+
+ error = X509_STORE_CTX_get_error(ctx);
+
+ if ((error != X509_V_ERR_NO_EXPLICIT_POLICY)
+ && ((error != X509_V_OK) || (ok != 2)))
+ return ok;
+
+ policies_print(NULL, ctx);
+
+ return ok;
+
+ }
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-10 09:59:48 +0000