diff options
Diffstat (limited to 'openssl/engines/e_capi.c')
| -rw-r--r-- | openssl/engines/e_capi.c | 3646 |
1 files changed, 1824 insertions, 1822 deletions
diff --git a/openssl/engines/e_capi.c b/openssl/engines/e_capi.c index 5871491fd..5c1fbeff3 100644 --- a/openssl/engines/e_capi.c +++ b/openssl/engines/e_capi.c @@ -1,1822 +1,1824 @@ -/* engines/e_capi.c */ -/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL - * project. - */ -/* ==================================================================== - * Copyright (c) 2008 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. - * ==================================================================== - */ - - -#include <stdio.h> -#include <string.h> -#include <openssl/crypto.h> -#include <openssl/buffer.h> -#include <openssl/bn.h> - -#ifdef OPENSSL_SYS_WIN32 -#ifndef OPENSSL_NO_CAPIENG - -#include <openssl/rsa.h> - -#include <windows.h> - -#ifndef _WIN32_WINNT -#define _WIN32_WINNT 0x0400 -#endif - -#include <wincrypt.h> - -/* - * This module uses several "new" interfaces, among which is - * CertGetCertificateContextProperty. CERT_KEY_PROV_INFO_PROP_ID is - * one of possible values you can pass to function in question. By - * checking if it's defined we can see if wincrypt.h and accompanying - * crypt32.lib are in shape. The native MingW32 headers up to and - * including __W32API_VERSION 3.14 lack of struct DSSPUBKEY and the - * defines CERT_STORE_PROV_SYSTEM_A and CERT_STORE_READONLY_FLAG, - * so we check for these too and avoid compiling. - * Yes, it's rather "weak" test and if compilation fails, - * then re-configure with -DOPENSSL_NO_CAPIENG. - */ -#if defined(CERT_KEY_PROV_INFO_PROP_ID) && \ - defined(CERT_STORE_PROV_SYSTEM_A) && \ - defined(CERT_STORE_READONLY_FLAG) -# define __COMPILE_CAPIENG -#endif /* CERT_KEY_PROV_INFO_PROP_ID */ -#endif /* OPENSSL_NO_CAPIENG */ -#endif /* OPENSSL_SYS_WIN32 */ - -#ifdef __COMPILE_CAPIENG - -#undef X509_EXTENSIONS -#undef X509_CERT_PAIR - -/* Definitions which may be missing from earlier version of headers */ -#ifndef CERT_STORE_OPEN_EXISTING_FLAG -#define CERT_STORE_OPEN_EXISTING_FLAG 0x00004000 -#endif - -#ifndef CERT_STORE_CREATE_NEW_FLAG -#define CERT_STORE_CREATE_NEW_FLAG 0x00002000 -#endif - -#ifndef CERT_SYSTEM_STORE_CURRENT_USER -#define CERT_SYSTEM_STORE_CURRENT_USER 0x00010000 -#endif - -#include <openssl/engine.h> -#include <openssl/pem.h> -#include <openssl/x509v3.h> - -#include "e_capi_err.h" -#include "e_capi_err.c" - - -static const char *engine_capi_id = "capi"; -static const char *engine_capi_name = "CryptoAPI ENGINE"; - -typedef struct CAPI_CTX_st CAPI_CTX; -typedef struct CAPI_KEY_st CAPI_KEY; - -static void capi_addlasterror(void); -static void capi_adderror(DWORD err); - -static void CAPI_trace(CAPI_CTX *ctx, char *format, ...); - -static int capi_list_providers(CAPI_CTX *ctx, BIO *out); -static int capi_list_containers(CAPI_CTX *ctx, BIO *out); -int capi_list_certs(CAPI_CTX *ctx, BIO *out, char *storename); -void capi_free_key(CAPI_KEY *key); - -static PCCERT_CONTEXT capi_find_cert(CAPI_CTX *ctx, const char *id, HCERTSTORE hstore); - -CAPI_KEY *capi_find_key(CAPI_CTX *ctx, const char *id); - -static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id, - UI_METHOD *ui_method, void *callback_data); -static int capi_rsa_sign(int dtype, const unsigned char *m, unsigned int m_len, - unsigned char *sigret, unsigned int *siglen, const RSA *rsa); -static int capi_rsa_priv_enc(int flen, const unsigned char *from, - unsigned char *to, RSA *rsa, int padding); -static int capi_rsa_priv_dec(int flen, const unsigned char *from, - unsigned char *to, RSA *rsa, int padding); -static int capi_rsa_free(RSA *rsa); - -static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen, - DSA *dsa); -static int capi_dsa_free(DSA *dsa); - -static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl, - STACK_OF(X509_NAME) *ca_dn, X509 **pcert, EVP_PKEY **pkey, - STACK_OF(X509) **pother, UI_METHOD *ui_method, void *callback_data); - -static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs); -#ifdef OPENSSL_CAPIENG_DIALOG -static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs); -#endif - -typedef PCCERT_CONTEXT (WINAPI *CERTDLG)(HCERTSTORE, HWND, LPCWSTR, - LPCWSTR, DWORD, DWORD, - void *); -typedef HWND (WINAPI *GETCONSWIN)(void); - -/* This structure contains CAPI ENGINE specific data: - * it contains various global options and affects how - * other functions behave. - */ - -#define CAPI_DBG_TRACE 2 -#define CAPI_DBG_ERROR 1 - -struct CAPI_CTX_st { - int debug_level; - char *debug_file; - /* Parameters to use for container lookup */ - DWORD keytype; - LPSTR cspname; - DWORD csptype; - /* Certificate store name to use */ - LPSTR storename; - LPSTR ssl_client_store; - /* System store flags */ - DWORD store_flags; - -/* Lookup string meanings in load_private_key */ -/* Substring of subject: uses "storename" */ -#define CAPI_LU_SUBSTR 1 -/* Friendly name: uses storename */ -#define CAPI_LU_FNAME 2 -/* Container name: uses cspname, keytype */ -#define CAPI_LU_CONTNAME 3 - int lookup_method; -/* Info to dump with dumpcerts option */ -/* Issuer and serial name strings */ -#define CAPI_DMP_SUMMARY 0x1 -/* Friendly name */ -#define CAPI_DMP_FNAME 0x2 -/* Full X509_print dump */ -#define CAPI_DMP_FULL 0x4 -/* Dump PEM format certificate */ -#define CAPI_DMP_PEM 0x8 -/* Dump pseudo key (if possible) */ -#define CAPI_DMP_PSKEY 0x10 -/* Dump key info (if possible) */ -#define CAPI_DMP_PKEYINFO 0x20 - - DWORD dump_flags; - int (*client_cert_select)(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs); - - CERTDLG certselectdlg; - GETCONSWIN getconswindow; -}; - - -static CAPI_CTX *capi_ctx_new(); -static void capi_ctx_free(CAPI_CTX *ctx); -static int capi_ctx_set_provname(CAPI_CTX *ctx, LPSTR pname, DWORD type, int check); -static int capi_ctx_set_provname_idx(CAPI_CTX *ctx, int idx); - -#define CAPI_CMD_LIST_CERTS ENGINE_CMD_BASE -#define CAPI_CMD_LOOKUP_CERT (ENGINE_CMD_BASE + 1) -#define CAPI_CMD_DEBUG_LEVEL (ENGINE_CMD_BASE + 2) -#define CAPI_CMD_DEBUG_FILE (ENGINE_CMD_BASE + 3) -#define CAPI_CMD_KEYTYPE (ENGINE_CMD_BASE + 4) -#define CAPI_CMD_LIST_CSPS (ENGINE_CMD_BASE + 5) -#define CAPI_CMD_SET_CSP_IDX (ENGINE_CMD_BASE + 6) -#define CAPI_CMD_SET_CSP_NAME (ENGINE_CMD_BASE + 7) -#define CAPI_CMD_SET_CSP_TYPE (ENGINE_CMD_BASE + 8) -#define CAPI_CMD_LIST_CONTAINERS (ENGINE_CMD_BASE + 9) -#define CAPI_CMD_LIST_OPTIONS (ENGINE_CMD_BASE + 10) -#define CAPI_CMD_LOOKUP_METHOD (ENGINE_CMD_BASE + 11) -#define CAPI_CMD_STORE_NAME (ENGINE_CMD_BASE + 12) -#define CAPI_CMD_STORE_FLAGS (ENGINE_CMD_BASE + 13) - -static const ENGINE_CMD_DEFN capi_cmd_defns[] = { - {CAPI_CMD_LIST_CERTS, - "list_certs", - "List all certificates in store", - ENGINE_CMD_FLAG_NO_INPUT}, - {CAPI_CMD_LOOKUP_CERT, - "lookup_cert", - "Lookup and output certificates", - ENGINE_CMD_FLAG_STRING}, - {CAPI_CMD_DEBUG_LEVEL, - "debug_level", - "debug level (1=errors, 2=trace)", - ENGINE_CMD_FLAG_NUMERIC}, - {CAPI_CMD_DEBUG_FILE, - "debug_file", - "debugging filename)", - ENGINE_CMD_FLAG_STRING}, - {CAPI_CMD_KEYTYPE, - "key_type", - "Key type: 1=AT_KEYEXCHANGE (default), 2=AT_SIGNATURE", - ENGINE_CMD_FLAG_NUMERIC}, - {CAPI_CMD_LIST_CSPS, - "list_csps", - "List all CSPs", - ENGINE_CMD_FLAG_NO_INPUT}, - {CAPI_CMD_SET_CSP_IDX, - "csp_idx", - "Set CSP by index", - ENGINE_CMD_FLAG_NUMERIC}, - {CAPI_CMD_SET_CSP_NAME, - "csp_name", - "Set CSP name, (default CSP used if not specified)", - ENGINE_CMD_FLAG_STRING}, - {CAPI_CMD_SET_CSP_TYPE, - "csp_type", - "Set CSP type, (default RSA_PROV_FULL)", - ENGINE_CMD_FLAG_NUMERIC}, - {CAPI_CMD_LIST_CONTAINERS, - "list_containers", - "list container names", - ENGINE_CMD_FLAG_NO_INPUT}, - {CAPI_CMD_LIST_OPTIONS, - "list_options", - "Set list options (1=summary,2=friendly name, 4=full printout, 8=PEM output, 16=XXX, " - "32=private key info)", - ENGINE_CMD_FLAG_NUMERIC}, - {CAPI_CMD_LOOKUP_METHOD, - "lookup_method", - "Set key lookup method (1=substring, 2=friendlyname, 3=container name)", - ENGINE_CMD_FLAG_NUMERIC}, - {CAPI_CMD_STORE_NAME, - "store_name", - "certificate store name, default \"MY\"", - ENGINE_CMD_FLAG_STRING}, - {CAPI_CMD_STORE_FLAGS, - "store_flags", - "Certificate store flags: 1 = system store", - ENGINE_CMD_FLAG_NUMERIC}, - - {0, NULL, NULL, 0} - }; - -static int capi_idx = -1; -static int rsa_capi_idx = -1; -static int dsa_capi_idx = -1; -static int cert_capi_idx = -1; - -static int capi_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void)) - { - int ret = 1; - CAPI_CTX *ctx; - BIO *out; - if (capi_idx == -1) - { - CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_ENGINE_NOT_INITIALIZED); - return 0; - } - ctx = ENGINE_get_ex_data(e, capi_idx); - out = BIO_new_fp(stdout, BIO_NOCLOSE); - switch (cmd) - { - case CAPI_CMD_LIST_CSPS: - ret = capi_list_providers(ctx, out); - break; - - case CAPI_CMD_LIST_CERTS: - ret = capi_list_certs(ctx, out, NULL); - break; - - case CAPI_CMD_LOOKUP_CERT: - ret = capi_list_certs(ctx, out, p); - break; - - case CAPI_CMD_LIST_CONTAINERS: - ret = capi_list_containers(ctx, out); - break; - - case CAPI_CMD_STORE_NAME: - if (ctx->storename) - OPENSSL_free(ctx->storename); - ctx->storename = BUF_strdup(p); - CAPI_trace(ctx, "Setting store name to %s\n", p); - break; - - case CAPI_CMD_STORE_FLAGS: - if (i & 1) - { - ctx->store_flags |= CERT_SYSTEM_STORE_LOCAL_MACHINE; - ctx->store_flags &= ~CERT_SYSTEM_STORE_CURRENT_USER; - } - else - { - ctx->store_flags |= CERT_SYSTEM_STORE_CURRENT_USER; - ctx->store_flags &= ~CERT_SYSTEM_STORE_LOCAL_MACHINE; - } - CAPI_trace(ctx, "Setting flags to %d\n", i); - break; - - case CAPI_CMD_DEBUG_LEVEL: - ctx->debug_level = (int)i; - CAPI_trace(ctx, "Setting debug level to %d\n", ctx->debug_level); - break; - - case CAPI_CMD_DEBUG_FILE: - ctx->debug_file = BUF_strdup(p); - CAPI_trace(ctx, "Setting debug file to %s\n", ctx->debug_file); - break; - - case CAPI_CMD_KEYTYPE: - ctx->keytype = i; - CAPI_trace(ctx, "Setting key type to %d\n", ctx->keytype); - break; - - case CAPI_CMD_SET_CSP_IDX: - ret = capi_ctx_set_provname_idx(ctx, i); - break; - - case CAPI_CMD_LIST_OPTIONS: - ctx->dump_flags = i; - break; - - case CAPI_CMD_LOOKUP_METHOD: - if (i < 1 || i > 3) - { - CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_INVALID_LOOKUP_METHOD); - return 0; - } - ctx->lookup_method = i; - break; - - case CAPI_CMD_SET_CSP_NAME: - ret = capi_ctx_set_provname(ctx, p, ctx->csptype, 1); - break; - - case CAPI_CMD_SET_CSP_TYPE: - ctx->csptype = i; - break; - - default: - CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_UNKNOWN_COMMAND); - ret = 0; - } - - BIO_free(out); - return ret; - - } - -static RSA_METHOD capi_rsa_method = - { - "CryptoAPI RSA method", - 0, /* pub_enc */ - 0, /* pub_dec */ - capi_rsa_priv_enc, /* priv_enc */ - capi_rsa_priv_dec, /* priv_dec */ - 0, /* rsa_mod_exp */ - 0, /* bn_mod_exp */ - 0, /* init */ - capi_rsa_free, /* finish */ - RSA_FLAG_SIGN_VER, /* flags */ - NULL, /* app_data */ - capi_rsa_sign, /* rsa_sign */ - 0 /* rsa_verify */ - }; - -static DSA_METHOD capi_dsa_method = - { - "CryptoAPI DSA method", - capi_dsa_do_sign, /* dsa_do_sign */ - 0, /* dsa_sign_setup */ - 0, /* dsa_do_verify */ - 0, /* dsa_mod_exp */ - 0, /* bn_mod_exp */ - 0, /* init */ - capi_dsa_free, /* finish */ - 0, /* flags */ - NULL, /* app_data */ - 0, /* dsa_paramgen */ - 0 /* dsa_keygen */ - }; - -static int capi_init(ENGINE *e) - { - CAPI_CTX *ctx; - const RSA_METHOD *ossl_rsa_meth; - const DSA_METHOD *ossl_dsa_meth; - capi_idx = ENGINE_get_ex_new_index(0, NULL, NULL, NULL, 0); - cert_capi_idx = X509_get_ex_new_index(0, NULL, NULL, NULL, 0); - - ctx = capi_ctx_new(); - if (!ctx || (capi_idx < 0)) - goto memerr; - - ENGINE_set_ex_data(e, capi_idx, ctx); - /* Setup RSA_METHOD */ - rsa_capi_idx = RSA_get_ex_new_index(0, NULL, NULL, NULL, 0); - ossl_rsa_meth = RSA_PKCS1_SSLeay(); - capi_rsa_method.rsa_pub_enc = ossl_rsa_meth->rsa_pub_enc; - capi_rsa_method.rsa_pub_dec = ossl_rsa_meth->rsa_pub_dec; - capi_rsa_method.rsa_mod_exp = ossl_rsa_meth->rsa_mod_exp; - capi_rsa_method.bn_mod_exp = ossl_rsa_meth->bn_mod_exp; - - /* Setup DSA Method */ - dsa_capi_idx = DSA_get_ex_new_index(0, NULL, NULL, NULL, 0); - ossl_dsa_meth = DSA_OpenSSL(); - capi_dsa_method.dsa_do_verify = ossl_dsa_meth->dsa_do_verify; - capi_dsa_method.dsa_mod_exp = ossl_dsa_meth->dsa_mod_exp; - capi_dsa_method.bn_mod_exp = ossl_dsa_meth->bn_mod_exp; - -#ifdef OPENSSL_CAPIENG_DIALOG - { - HMODULE cryptui = LoadLibrary(TEXT("CRYPTUI.DLL")); - HMODULE kernel = GetModuleHandle(TEXT("KERNEL32.DLL")); - if (cryptui) - ctx->certselectdlg = (CERTDLG)GetProcAddress(cryptui, "CryptUIDlgSelectCertificateFromStore"); - if (kernel) - ctx->getconswindow = (GETCONSWIN)GetProcAddress(kernel, "GetConsoleWindow"); - if (cryptui && !OPENSSL_isservice()) - ctx->client_cert_select = cert_select_dialog; - } -#endif - - - return 1; - - memerr: - CAPIerr(CAPI_F_CAPI_INIT, ERR_R_MALLOC_FAILURE); - return 0; - - return 1; - } - -static int capi_destroy(ENGINE *e) - { - ERR_unload_CAPI_strings(); - return 1; - } - -static int capi_finish(ENGINE *e) - { - CAPI_CTX *ctx; - ctx = ENGINE_get_ex_data(e, capi_idx); - capi_ctx_free(ctx); - ENGINE_set_ex_data(e, capi_idx, NULL); - return 1; - } - - -/* CryptoAPI key application data. This contains - * a handle to the private key container (for sign operations) - * and a handle to the key (for decrypt operations). - */ - -struct CAPI_KEY_st - { - /* Associated certificate context (if any) */ - PCCERT_CONTEXT pcert; - HCRYPTPROV hprov; - HCRYPTKEY key; - DWORD keyspec; - }; - -static int bind_capi(ENGINE *e) - { - if (!ENGINE_set_id(e, engine_capi_id) - || !ENGINE_set_name(e, engine_capi_name) - || !ENGINE_set_init_function(e, capi_init) - || !ENGINE_set_finish_function(e, capi_finish) - || !ENGINE_set_destroy_function(e, capi_destroy) - || !ENGINE_set_RSA(e, &capi_rsa_method) - || !ENGINE_set_DSA(e, &capi_dsa_method) - || !ENGINE_set_load_privkey_function(e, capi_load_privkey) - || !ENGINE_set_load_ssl_client_cert_function(e, - capi_load_ssl_client_cert) - || !ENGINE_set_cmd_defns(e, capi_cmd_defns) - || !ENGINE_set_ctrl_function(e, capi_ctrl)) - return 0; - ERR_load_CAPI_strings(); - - return 1; - - } - -#ifndef OPENSSL_NO_DYNAMIC_ENGINE -static int bind_helper(ENGINE *e, const char *id) - { - if(id && (strcmp(id, engine_capi_id) != 0)) - return 0; - if(!bind_capi(e)) - return 0; - return 1; - } -IMPLEMENT_DYNAMIC_CHECK_FN() -IMPLEMENT_DYNAMIC_BIND_FN(bind_helper) -#else -static ENGINE *engine_capi(void) - { - ENGINE *ret = ENGINE_new(); - if(!ret) - return NULL; - if(!bind_capi(ret)) - { - ENGINE_free(ret); - return NULL; - } - return ret; - } - -void ENGINE_load_capi(void) - { - /* Copied from eng_[openssl|dyn].c */ - ENGINE *toadd = engine_capi(); - if(!toadd) return; - ENGINE_add(toadd); - ENGINE_free(toadd); - ERR_clear_error(); - } -#endif - - -static int lend_tobn(BIGNUM *bn, unsigned char *bin, int binlen) - { - int i; - /* Reverse buffer in place: since this is a keyblob structure - * that will be freed up after conversion anyway it doesn't - * matter if we change it. - */ - for(i = 0; i < binlen / 2; i++) - { - unsigned char c; - c = bin[i]; - bin[i] = bin[binlen - i - 1]; - bin[binlen - i - 1] = c; - } - - if (!BN_bin2bn(bin, binlen, bn)) - return 0; - return 1; - } - -/* Given a CAPI_KEY get an EVP_PKEY structure */ - -static EVP_PKEY *capi_get_pkey(ENGINE *eng, CAPI_KEY *key) - { - unsigned char *pubkey = NULL; - DWORD len; - BLOBHEADER *bh; - RSA *rkey = NULL; - DSA *dkey = NULL; - EVP_PKEY *ret = NULL; - if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, NULL, &len)) - { - CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_LENGTH_ERROR); - capi_addlasterror(); - return NULL; - } - - pubkey = OPENSSL_malloc(len); - - if (!pubkey) - goto memerr; - - if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, pubkey, &len)) - { - CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_ERROR); - capi_addlasterror(); - goto err; - } - - bh = (BLOBHEADER *)pubkey; - if (bh->bType != PUBLICKEYBLOB) - { - CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_PUBLIC_KEY_BLOB); - goto err; - } - if (bh->aiKeyAlg == CALG_RSA_SIGN || bh->aiKeyAlg == CALG_RSA_KEYX) - { - RSAPUBKEY *rp; - DWORD rsa_modlen; - unsigned char *rsa_modulus; - rp = (RSAPUBKEY *)(bh + 1); - if (rp->magic != 0x31415352) - { - char magstr[10]; - BIO_snprintf(magstr, 10, "%lx", rp->magic); - CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_RSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER); - ERR_add_error_data(2, "magic=0x", magstr); - goto err; - } - rsa_modulus = (unsigned char *)(rp + 1); - rkey = RSA_new_method(eng); - if (!rkey) - goto memerr; - - rkey->e = BN_new(); - rkey->n = BN_new(); - - if (!rkey->e || !rkey->n) - goto memerr; - - if (!BN_set_word(rkey->e, rp->pubexp)) - goto memerr; - - rsa_modlen = rp->bitlen / 8; - if (!lend_tobn(rkey->n, rsa_modulus, rsa_modlen)) - goto memerr; - - RSA_set_ex_data(rkey, rsa_capi_idx, key); - - if (!(ret = EVP_PKEY_new())) - goto memerr; - - EVP_PKEY_assign_RSA(ret, rkey); - rkey = NULL; - - } - else if (bh->aiKeyAlg == CALG_DSS_SIGN) - { - DSSPUBKEY *dp; - DWORD dsa_plen; - unsigned char *btmp; - dp = (DSSPUBKEY *)(bh + 1); - if (dp->magic != 0x31535344) - { - char magstr[10]; - BIO_snprintf(magstr, 10, "%lx", dp->magic); - CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_DSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER); - ERR_add_error_data(2, "magic=0x", magstr); - goto err; - } - dsa_plen = dp->bitlen / 8; - btmp = (unsigned char *)(dp + 1); - dkey = DSA_new_method(eng); - if (!dkey) - goto memerr; - dkey->p = BN_new(); - dkey->q = BN_new(); - dkey->g = BN_new(); - dkey->pub_key = BN_new(); - if (!dkey->p || !dkey->q || !dkey->g || !dkey->pub_key) - goto memerr; - if (!lend_tobn(dkey->p, btmp, dsa_plen)) - goto memerr; - btmp += dsa_plen; - if (!lend_tobn(dkey->q, btmp, 20)) - goto memerr; - btmp += 20; - if (!lend_tobn(dkey->g, btmp, dsa_plen)) - goto memerr; - btmp += dsa_plen; - if (!lend_tobn(dkey->pub_key, btmp, dsa_plen)) - goto memerr; - btmp += dsa_plen; - - DSA_set_ex_data(dkey, dsa_capi_idx, key); - - if (!(ret = EVP_PKEY_new())) - goto memerr; - - EVP_PKEY_assign_DSA(ret, dkey); - dkey = NULL; - } - else - { - char algstr[10]; - BIO_snprintf(algstr, 10, "%lx", bh->aiKeyAlg); - CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_UNSUPPORTED_PUBLIC_KEY_ALGORITHM); - ERR_add_error_data(2, "aiKeyAlg=0x", algstr); - goto err; - } - - - err: - if (pubkey) - OPENSSL_free(pubkey); - if (!ret) - { - if (rkey) - RSA_free(rkey); - if (dkey) - DSA_free(dkey); - } - - return ret; - -memerr: - CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_MALLOC_FAILURE); - goto err; - - } - -static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id, - UI_METHOD *ui_method, void *callback_data) - { - CAPI_CTX *ctx; - CAPI_KEY *key; - EVP_PKEY *ret; - ctx = ENGINE_get_ex_data(eng, capi_idx); - - if (!ctx) - { - CAPIerr(CAPI_F_CAPI_LOAD_PRIVKEY, CAPI_R_CANT_FIND_CAPI_CONTEXT); - return NULL; - } - - key = capi_find_key(ctx, key_id); - - if (!key) - return NULL; - - ret = capi_get_pkey(eng, key); - - if (!ret) - capi_free_key(key); - return ret; - - } - -/* CryptoAPI RSA operations */ - -int capi_rsa_priv_enc(int flen, const unsigned char *from, - unsigned char *to, RSA *rsa, int padding) - { - CAPIerr(CAPI_F_CAPI_RSA_PRIV_ENC, CAPI_R_FUNCTION_NOT_SUPPORTED); - return -1; - } - -int capi_rsa_sign(int dtype, const unsigned char *m, unsigned int m_len, - unsigned char *sigret, unsigned int *siglen, const RSA *rsa) - { - ALG_ID alg; - HCRYPTHASH hash; - DWORD slen; - unsigned int i; - int ret = -1; - CAPI_KEY *capi_key; - CAPI_CTX *ctx; - - ctx = ENGINE_get_ex_data(rsa->engine, capi_idx); - - CAPI_trace(ctx, "Called CAPI_rsa_sign()\n"); - - capi_key = RSA_get_ex_data(rsa, rsa_capi_idx); - if (!capi_key) - { - CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_GET_KEY); - return -1; - } -/* Convert the signature type to a CryptoAPI algorithm ID */ - switch(dtype) - { - case NID_sha1: - alg = CALG_SHA1; - break; - - case NID_md5: - alg = CALG_MD5; - break; - - case NID_md5_sha1: - alg = CALG_SSL3_SHAMD5; - break; - default: - { - char algstr[10]; - BIO_snprintf(algstr, 10, "%lx", dtype); - CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_UNSUPPORTED_ALGORITHM_NID); - ERR_add_error_data(2, "NID=0x", algstr); - return -1; - } - } - - - -/* Create the hash object */ - if(!CryptCreateHash(capi_key->hprov, alg, 0, 0, &hash)) - { - CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT); - capi_addlasterror(); - return -1; - } -/* Set the hash value to the value passed */ - - if(!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)m, 0)) - { - CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_SET_HASH_VALUE); - capi_addlasterror(); - goto err; - } - - -/* Finally sign it */ - slen = RSA_size(rsa); - if(!CryptSignHashA(hash, capi_key->keyspec, NULL, 0, sigret, &slen)) - { - CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_ERROR_SIGNING_HASH); - capi_addlasterror(); - goto err; - } - else - { - ret = 1; - /* Inplace byte reversal of signature */ - for(i = 0; i < slen / 2; i++) - { - unsigned char c; - c = sigret[i]; - sigret[i] = sigret[slen - i - 1]; - sigret[slen - i - 1] = c; - } - *siglen = slen; - } - - /* Now cleanup */ - -err: - CryptDestroyHash(hash); - - return ret; - } - -int capi_rsa_priv_dec(int flen, const unsigned char *from, - unsigned char *to, RSA *rsa, int padding) - { - int i; - unsigned char *tmpbuf; - CAPI_KEY *capi_key; - CAPI_CTX *ctx; - ctx = ENGINE_get_ex_data(rsa->engine, capi_idx); - - CAPI_trace(ctx, "Called capi_rsa_priv_dec()\n"); - - - capi_key = RSA_get_ex_data(rsa, rsa_capi_idx); - if (!capi_key) - { - CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_CANT_GET_KEY); - return -1; - } - - if(padding != RSA_PKCS1_PADDING) - { - char errstr[10]; - BIO_snprintf(errstr, 10, "%d", padding); - CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_UNSUPPORTED_PADDING); - ERR_add_error_data(2, "padding=", errstr); - return -1; - } - - /* Create temp reverse order version of input */ - if(!(tmpbuf = OPENSSL_malloc(flen)) ) - { - CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, ERR_R_MALLOC_FAILURE); - return -1; - } - for(i = 0; i < flen; i++) - tmpbuf[flen - i - 1] = from[i]; - - /* Finally decrypt it */ - if(!CryptDecrypt(capi_key->key, 0, TRUE, 0, tmpbuf, &flen)) - { - CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_DECRYPT_ERROR); - capi_addlasterror(); - OPENSSL_free(tmpbuf); - return -1; - } - else memcpy(to, tmpbuf, flen); - - OPENSSL_free(tmpbuf); - - return flen; - } - -static int capi_rsa_free(RSA *rsa) - { - CAPI_KEY *capi_key; - capi_key = RSA_get_ex_data(rsa, rsa_capi_idx); - capi_free_key(capi_key); - RSA_set_ex_data(rsa, rsa_capi_idx, 0); - return 1; - } - -/* CryptoAPI DSA operations */ - -static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen, - DSA *dsa) - { - HCRYPTHASH hash; - DWORD slen; - DSA_SIG *ret = NULL; - CAPI_KEY *capi_key; - CAPI_CTX *ctx; - unsigned char csigbuf[40]; - - ctx = ENGINE_get_ex_data(dsa->engine, capi_idx); - - CAPI_trace(ctx, "Called CAPI_dsa_do_sign()\n"); - - capi_key = DSA_get_ex_data(dsa, dsa_capi_idx); - - if (!capi_key) - { - CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_GET_KEY); - return NULL; - } - - if (dlen != 20) - { - CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_INVALID_DIGEST_LENGTH); - return NULL; - } - - /* Create the hash object */ - if(!CryptCreateHash(capi_key->hprov, CALG_SHA1, 0, 0, &hash)) - { - CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT); - capi_addlasterror(); - return NULL; - } - - /* Set the hash value to the value passed */ - if(!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)digest, 0)) - { - CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_SET_HASH_VALUE); - capi_addlasterror(); - goto err; - } - - - /* Finally sign it */ - slen = sizeof(csigbuf); - if(!CryptSignHashA(hash, capi_key->keyspec, NULL, 0, csigbuf, &slen)) - { - CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_ERROR_SIGNING_HASH); - capi_addlasterror(); - goto err; - } - else - { - ret = DSA_SIG_new(); - if (!ret) - goto err; - ret->r = BN_new(); - ret->s = BN_new(); - if (!ret->r || !ret->s) - goto err; - if (!lend_tobn(ret->r, csigbuf, 20) - || !lend_tobn(ret->s, csigbuf + 20, 20)) - { - DSA_SIG_free(ret); - ret = NULL; - goto err; - } - } - - /* Now cleanup */ - -err: - OPENSSL_cleanse(csigbuf, 40); - CryptDestroyHash(hash); - return ret; - } - -static int capi_dsa_free(DSA *dsa) - { - CAPI_KEY *capi_key; - capi_key = DSA_get_ex_data(dsa, dsa_capi_idx); - capi_free_key(capi_key); - DSA_set_ex_data(dsa, dsa_capi_idx, 0); - return 1; - } - -static void capi_vtrace(CAPI_CTX *ctx, int level, char *format, va_list argptr) - { - BIO *out; - - if (!ctx || (ctx->debug_level < level) || (!ctx->debug_file)) - return; - out = BIO_new_file(ctx->debug_file, "a+"); - BIO_vprintf(out, format, argptr); - BIO_free(out); - } - -static void CAPI_trace(CAPI_CTX *ctx, char *format, ...) - { - va_list args; - va_start(args, format); - capi_vtrace(ctx, CAPI_DBG_TRACE, format, args); - va_end(args); - } - -static void capi_addlasterror(void) - { - capi_adderror(GetLastError()); - } - -static void capi_adderror(DWORD err) - { - char errstr[10]; - BIO_snprintf(errstr, 10, "%lX", err); - ERR_add_error_data(2, "Error code= 0x", errstr); - } - -static char *wide_to_asc(LPWSTR wstr) - { - char *str; - int len_0,sz; - - if (!wstr) - return NULL; - len_0 = (int)wcslen(wstr)+1; /* WideCharToMultiByte expects int */ - sz = WideCharToMultiByte(CP_ACP,0,wstr,len_0,NULL,0,NULL,NULL); - if (!sz) - { - CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR); - return NULL; - } - str = OPENSSL_malloc(sz); - if (!str) - { - CAPIerr(CAPI_F_WIDE_TO_ASC, ERR_R_MALLOC_FAILURE); - return NULL; - } - if (!WideCharToMultiByte(CP_ACP,0,wstr,len_0,str,sz,NULL,NULL)) - { - OPENSSL_free(str); - CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR); - return NULL; - } - return str; - } - -static int capi_get_provname(CAPI_CTX *ctx, LPSTR *pname, DWORD *ptype, DWORD idx) - { - LPSTR name; - DWORD len, err; - CAPI_trace(ctx, "capi_get_provname, index=%d\n", idx); - if (!CryptEnumProvidersA(idx, NULL, 0, ptype, NULL, &len)) - { - err = GetLastError(); - if (err == ERROR_NO_MORE_ITEMS) - return 2; - CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR); - capi_adderror(err); - return 0; - } - name = OPENSSL_malloc(len); - if (!CryptEnumProvidersA(idx, NULL, 0, ptype, name, &len)) - { - err = GetLastError(); - if (err == ERROR_NO_MORE_ITEMS) - return 2; - CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR); - capi_adderror(err); - return 0; - } - *pname = name; - CAPI_trace(ctx, "capi_get_provname, returned name=%s, type=%d\n", name, *ptype); - - return 1; - } - -static int capi_list_providers(CAPI_CTX *ctx, BIO *out) - { - DWORD idx, ptype; - int ret; - LPSTR provname = NULL; - CAPI_trace(ctx, "capi_list_providers\n"); - BIO_printf(out, "Available CSPs:\n"); - for(idx = 0; ; idx++) - { - ret = capi_get_provname(ctx, &provname, &ptype, idx); - if (ret == 2) - break; - if (ret == 0) - break; - BIO_printf(out, "%d. %s, type %d\n", idx, provname, ptype); - OPENSSL_free(provname); - } - return 1; - } - -static int capi_list_containers(CAPI_CTX *ctx, BIO *out) - { - int ret = 1; - HCRYPTPROV hprov; - DWORD err, idx, flags, buflen = 0, clen; - LPSTR cname; - CAPI_trace(ctx, "Listing containers CSP=%s, type = %d\n", ctx->cspname, ctx->csptype); - if (!CryptAcquireContextA(&hprov, NULL, ctx->cspname, ctx->csptype, CRYPT_VERIFYCONTEXT)) - { - CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_CRYPTACQUIRECONTEXT_ERROR); - capi_addlasterror(); - return 0; - } - if (!CryptGetProvParam(hprov, PP_ENUMCONTAINERS, NULL, &buflen, CRYPT_FIRST)) - { - CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR); - capi_addlasterror(); - return 0; - } - CAPI_trace(ctx, "Got max container len %d\n", buflen); - if (buflen == 0) - buflen = 1024; - cname = OPENSSL_malloc(buflen); - if (!cname) - { - CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, ERR_R_MALLOC_FAILURE); - goto err; - } - - for (idx = 0;;idx++) - { - clen = buflen; - cname[0] = 0; - - if (idx == 0) - flags = CRYPT_FIRST; - else - flags = 0; - if(!CryptGetProvParam(hprov, PP_ENUMCONTAINERS, cname, &clen, flags)) - { - err = GetLastError(); - if (err == ERROR_NO_MORE_ITEMS) - goto done; - CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR); - capi_adderror(err); - goto err; - } - CAPI_trace(ctx, "Container name %s, len=%d, index=%d, flags=%d\n", cname, clen, idx, flags); - if (!cname[0] && (clen == buflen)) - { - CAPI_trace(ctx, "Enumerate bug: using workaround\n"); - goto done; - } - BIO_printf(out, "%d. %s\n", idx, cname); - } - err: - - ret = 0; - - done: - if (cname) - OPENSSL_free(cname); - CryptReleaseContext(hprov, 0); - - return ret; - } - -CRYPT_KEY_PROV_INFO *capi_get_prov_info(CAPI_CTX *ctx, PCCERT_CONTEXT cert) - { - DWORD len; - CRYPT_KEY_PROV_INFO *pinfo; - - if(!CertGetCertificateContextProperty(cert, CERT_KEY_PROV_INFO_PROP_ID, NULL, &len)) - return NULL; - pinfo = OPENSSL_malloc(len); - if (!pinfo) - { - CAPIerr(CAPI_F_CAPI_GET_PROV_INFO, ERR_R_MALLOC_FAILURE); - return NULL; - } - if(!CertGetCertificateContextProperty(cert, CERT_KEY_PROV_INFO_PROP_ID, pinfo, &len)) - { - CAPIerr(CAPI_F_CAPI_GET_PROV_INFO, CAPI_R_ERROR_GETTING_KEY_PROVIDER_INFO); - capi_addlasterror(); - OPENSSL_free(pinfo); - return NULL; - } - return pinfo; - } - -static void capi_dump_prov_info(CAPI_CTX *ctx, BIO *out, CRYPT_KEY_PROV_INFO *pinfo) - { - char *provname = NULL, *contname = NULL; - if (!pinfo) - { - BIO_printf(out, " No Private Key\n"); - return; - } - provname = wide_to_asc(pinfo->pwszProvName); - contname = wide_to_asc(pinfo->pwszContainerName); - if (!provname || !contname) - goto err; - - BIO_printf(out, " Private Key Info:\n"); - BIO_printf(out, " Provider Name: %s, Provider Type %d\n", provname, pinfo->dwProvType); - BIO_printf(out, " Container Name: %s, Key Type %d\n", contname, pinfo->dwKeySpec); - err: - if (provname) - OPENSSL_free(provname); - if (contname) - OPENSSL_free(contname); - } - -char * capi_cert_get_fname(CAPI_CTX *ctx, PCCERT_CONTEXT cert) - { - LPWSTR wfname; - DWORD dlen; - - CAPI_trace(ctx, "capi_cert_get_fname\n"); - if (!CertGetCertificateContextProperty(cert, CERT_FRIENDLY_NAME_PROP_ID, NULL, &dlen)) - return NULL; - wfname = OPENSSL_malloc(dlen); - if (CertGetCertificateContextProperty(cert, CERT_FRIENDLY_NAME_PROP_ID, wfname, &dlen)) - { - char *fname = wide_to_asc(wfname); - OPENSSL_free(wfname); - return fname; - } - CAPIerr(CAPI_F_CAPI_CERT_GET_FNAME, CAPI_R_ERROR_GETTING_FRIENDLY_NAME); - capi_addlasterror(); - - OPENSSL_free(wfname); - return NULL; - } - - -void capi_dump_cert(CAPI_CTX *ctx, BIO *out, PCCERT_CONTEXT cert) - { - X509 *x; - unsigned char *p; - unsigned long flags = ctx->dump_flags; - if (flags & CAPI_DMP_FNAME) - { - char *fname; - fname = capi_cert_get_fname(ctx, cert); - if (fname) - { - BIO_printf(out, " Friendly Name \"%s\"\n", fname); - OPENSSL_free(fname); - } - else - BIO_printf(out, " <No Friendly Name>\n"); - } - - p = cert->pbCertEncoded; - x = d2i_X509(NULL, &p, cert->cbCertEncoded); - if (!x) - BIO_printf(out, " <Can't parse certificate>\n"); - if (flags & CAPI_DMP_SUMMARY) - { - BIO_printf(out, " Subject: "); - X509_NAME_print_ex(out, X509_get_subject_name(x), 0, XN_FLAG_ONELINE); - BIO_printf(out, "\n Issuer: "); - X509_NAME_print_ex(out, X509_get_issuer_name(x), 0, XN_FLAG_ONELINE); - BIO_printf(out, "\n"); - } - if (flags & CAPI_DMP_FULL) - X509_print_ex(out, x, XN_FLAG_ONELINE,0); - - if (flags & CAPI_DMP_PKEYINFO) - { - CRYPT_KEY_PROV_INFO *pinfo; - pinfo = capi_get_prov_info(ctx, cert); - capi_dump_prov_info(ctx, out, pinfo); - if (pinfo) - OPENSSL_free(pinfo); - } - - if (flags & CAPI_DMP_PEM) - PEM_write_bio_X509(out, x); - X509_free(x); - } - -HCERTSTORE capi_open_store(CAPI_CTX *ctx, char *storename) - { - HCERTSTORE hstore; - - if (!storename) - storename = ctx->storename; - if (!storename) - storename = "MY"; - CAPI_trace(ctx, "Opening certificate store %s\n", storename); - - hstore = CertOpenStore(CERT_STORE_PROV_SYSTEM_A, 0, 0, - ctx->store_flags, storename); - if (!hstore) - { - CAPIerr(CAPI_F_CAPI_OPEN_STORE, CAPI_R_ERROR_OPENING_STORE); - capi_addlasterror(); - } - return hstore; - } - -int capi_list_certs(CAPI_CTX *ctx, BIO *out, char *id) - { - char *storename; - int idx; - int ret = 1; - HCERTSTORE hstore; - PCCERT_CONTEXT cert = NULL; - - storename = ctx->storename; - if (!storename) - storename = "MY"; - CAPI_trace(ctx, "Listing certs for store %s\n", storename); - - hstore = capi_open_store(ctx, storename); - if (!hstore) - return 0; - if (id) - { - cert = capi_find_cert(ctx, id, hstore); - if (!cert) - { - ret = 0; - goto err; - } - capi_dump_cert(ctx, out, cert); - CertFreeCertificateContext(cert); - } - else - { - for(idx = 0;;idx++) - { - LPWSTR fname = NULL; - cert = CertEnumCertificatesInStore(hstore, cert); - if (!cert) - break; - BIO_printf(out, "Certificate %d\n", idx); - capi_dump_cert(ctx, out, cert); - } - } - err: - CertCloseStore(hstore, 0); - return ret; - } - -static PCCERT_CONTEXT capi_find_cert(CAPI_CTX *ctx, const char *id, HCERTSTORE hstore) - { - PCCERT_CONTEXT cert = NULL; - char *fname = NULL; - int match; - switch(ctx->lookup_method) - { - case CAPI_LU_SUBSTR: - return CertFindCertificateInStore(hstore, - X509_ASN_ENCODING, 0, - CERT_FIND_SUBJECT_STR_A, id, NULL); - case CAPI_LU_FNAME: - for(;;) - { - cert = CertEnumCertificatesInStore(hstore, cert); - if (!cert) - return NULL; - fname = capi_cert_get_fname(ctx, cert); - if (fname) - { - if (strcmp(fname, id)) - match = 0; - else - match = 1; - OPENSSL_free(fname); - if (match) - return cert; - } - } - default: - return NULL; - } - } - -static CAPI_KEY *capi_get_key(CAPI_CTX *ctx, const char *contname, char *provname, DWORD ptype, DWORD keyspec) - { - CAPI_KEY *key; - key = OPENSSL_malloc(sizeof(CAPI_KEY)); - CAPI_trace(ctx, "capi_get_key, contname=%s, provname=%s, type=%d\n", - contname, provname, ptype); - if (!CryptAcquireContextA(&key->hprov, contname, provname, ptype, 0)) - { - CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_CRYPTACQUIRECONTEXT_ERROR); - capi_addlasterror(); - goto err; - } - if (!CryptGetUserKey(key->hprov, keyspec, &key->key)) - { - CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_GETUSERKEY_ERROR); - capi_addlasterror(); - CryptReleaseContext(key->hprov, 0); - goto err; - } - key->keyspec = keyspec; - key->pcert = NULL; - return key; - - err: - OPENSSL_free(key); - return NULL; - } - -static CAPI_KEY *capi_get_cert_key(CAPI_CTX *ctx, PCCERT_CONTEXT cert) - { - CAPI_KEY *key = NULL; - CRYPT_KEY_PROV_INFO *pinfo = NULL; - char *provname = NULL, *contname = NULL; - pinfo = capi_get_prov_info(ctx, cert); - if (!pinfo) - goto err; - provname = wide_to_asc(pinfo->pwszProvName); - contname = wide_to_asc(pinfo->pwszContainerName); - if (!provname || !contname) - goto err; - key = capi_get_key(ctx, contname, provname, - pinfo->dwProvType, pinfo->dwKeySpec); - - err: - if (pinfo) - OPENSSL_free(pinfo); - if (provname) - OPENSSL_free(provname); - if (contname) - OPENSSL_free(contname); - return key; - } - -CAPI_KEY *capi_find_key(CAPI_CTX *ctx, const char *id) - { - PCCERT_CONTEXT cert; - HCERTSTORE hstore; - CAPI_KEY *key = NULL; - switch (ctx->lookup_method) - { - case CAPI_LU_SUBSTR: - case CAPI_LU_FNAME: - hstore = capi_open_store(ctx, NULL); - if (!hstore) - return NULL; - cert = capi_find_cert(ctx, id, hstore); - if (cert) - { - key = capi_get_cert_key(ctx, cert); - CertFreeCertificateContext(cert); - } - CertCloseStore(hstore, 0); - break; - - case CAPI_LU_CONTNAME: - key = capi_get_key(ctx, id, ctx->cspname, ctx->csptype, - ctx->keytype); - break; - } - - return key; - } - -void capi_free_key(CAPI_KEY *key) - { - if (!key) - return; - CryptDestroyKey(key->key); - CryptReleaseContext(key->hprov, 0); - if (key->pcert) - CertFreeCertificateContext(key->pcert); - OPENSSL_free(key); - } - - -/* Initialize a CAPI_CTX structure */ - -static CAPI_CTX *capi_ctx_new() - { - CAPI_CTX *ctx; - ctx = OPENSSL_malloc(sizeof(CAPI_CTX)); - if (!ctx) - { - CAPIerr(CAPI_F_CAPI_CTX_NEW, ERR_R_MALLOC_FAILURE); - return NULL; - } - ctx->cspname = NULL; - ctx->csptype = PROV_RSA_FULL; - ctx->dump_flags = CAPI_DMP_SUMMARY|CAPI_DMP_FNAME; - ctx->keytype = AT_KEYEXCHANGE; - ctx->storename = NULL; - ctx->ssl_client_store = NULL; - ctx->store_flags = CERT_STORE_OPEN_EXISTING_FLAG | - CERT_STORE_READONLY_FLAG | - CERT_SYSTEM_STORE_CURRENT_USER; - ctx->lookup_method = CAPI_LU_SUBSTR; - ctx->debug_level = 0; - ctx->debug_file = NULL; - ctx->client_cert_select = cert_select_simple; - return ctx; - } - -static void capi_ctx_free(CAPI_CTX *ctx) - { - CAPI_trace(ctx, "Calling capi_ctx_free with %lx\n", ctx); - if (!ctx) - return; - if (ctx->cspname) - OPENSSL_free(ctx->cspname); - if (ctx->debug_file) - OPENSSL_free(ctx->debug_file); - if (ctx->storename) - OPENSSL_free(ctx->storename); - if (ctx->ssl_client_store) - OPENSSL_free(ctx->ssl_client_store); - OPENSSL_free(ctx); - } - -static int capi_ctx_set_provname(CAPI_CTX *ctx, LPSTR pname, DWORD type, int check) - { - CAPI_trace(ctx, "capi_ctx_set_provname, name=%s, type=%d\n", pname, type); - if (check) - { - HCRYPTPROV hprov; - if (!CryptAcquireContextA(&hprov, NULL, pname, type, - CRYPT_VERIFYCONTEXT)) - { - CAPIerr(CAPI_F_CAPI_CTX_SET_PROVNAME, CAPI_R_CRYPTACQUIRECONTEXT_ERROR); - capi_addlasterror(); - return 0; - } - CryptReleaseContext(hprov, 0); - } - ctx->cspname = BUF_strdup(pname); - ctx->csptype = type; - return 1; - } - -static int capi_ctx_set_provname_idx(CAPI_CTX *ctx, int idx) - { - LPSTR pname; - DWORD type; - if (capi_get_provname(ctx, &pname, &type, idx) != 1) - return 0; - return capi_ctx_set_provname(ctx, pname, type, 0); - } - -static int cert_issuer_match(STACK_OF(X509_NAME) *ca_dn, X509 *x) - { - int i; - X509_NAME *nm; - /* Special case: empty list: match anything */ - if (sk_X509_NAME_num(ca_dn) <= 0) - return 1; - for (i = 0; i < sk_X509_NAME_num(ca_dn); i++) - { - nm = sk_X509_NAME_value(ca_dn, i); - if (!X509_NAME_cmp(nm, X509_get_issuer_name(x))) - return 1; - } - return 0; - } - - - -static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl, - STACK_OF(X509_NAME) *ca_dn, X509 **pcert, EVP_PKEY **pkey, - STACK_OF(X509) **pother, UI_METHOD *ui_method, void *callback_data) - { - STACK_OF(X509) *certs = NULL; - X509 *x; - char *storename; - const char *p; - int i, client_cert_idx; - HCERTSTORE hstore; - PCCERT_CONTEXT cert = NULL, excert = NULL; - CAPI_CTX *ctx; - CAPI_KEY *key; - ctx = ENGINE_get_ex_data(e, capi_idx); - - *pcert = NULL; - *pkey = NULL; - - storename = ctx->ssl_client_store; - if (!storename) - storename = "MY"; - - hstore = capi_open_store(ctx, storename); - if (!hstore) - return 0; - /* Enumerate all certificates collect any matches */ - for(i = 0;;i++) - { - cert = CertEnumCertificatesInStore(hstore, cert); - if (!cert) - break; - p = cert->pbCertEncoded; - x = d2i_X509(NULL, &p, cert->cbCertEncoded); - if (!x) - { - CAPI_trace(ctx, "Can't Parse Certificate %d\n", i); - continue; - } - if (cert_issuer_match(ca_dn, x) - && X509_check_purpose(x, X509_PURPOSE_SSL_CLIENT, 0)) - { - key = capi_get_cert_key(ctx, cert); - if (!key) - { - X509_free(x); - continue; - } - /* Match found: attach extra data to it so - * we can retrieve the key later. - */ - excert = CertDuplicateCertificateContext(cert); - key->pcert = excert; - X509_set_ex_data(x, cert_capi_idx, key); - - if (!certs) - certs = sk_X509_new_null(); - - sk_X509_push(certs, x); - } - else - X509_free(x); - - } - - if (cert) - CertFreeCertificateContext(cert); - if (hstore) - CertCloseStore(hstore, 0); - - if (!certs) - return 0; - - - /* Select the appropriate certificate */ - - client_cert_idx = ctx->client_cert_select(e, ssl, certs); - - /* Set the selected certificate and free the rest */ - - for(i = 0; i < sk_X509_num(certs); i++) - { - x = sk_X509_value(certs, i); - if (i == client_cert_idx) - *pcert = x; - else - { - key = X509_get_ex_data(x, cert_capi_idx); - capi_free_key(key); - X509_free(x); - } - } - - sk_X509_free(certs); - - if (!*pcert) - return 0; - - /* Setup key for selected certificate */ - - key = X509_get_ex_data(*pcert, cert_capi_idx); - *pkey = capi_get_pkey(e, key); - X509_set_ex_data(*pcert, cert_capi_idx, NULL); - - return 1; - - } - - -/* Simple client cert selection function: always select first */ - -static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs) - { - return 0; - } - -#ifdef OPENSSL_CAPIENG_DIALOG - -/* More complex cert selection function, using standard function - * CryptUIDlgSelectCertificateFromStore() to produce a dialog box. - */ - -/* Definitions which are in cryptuiapi.h but this is not present in older - * versions of headers. - */ - -#ifndef CRYPTUI_SELECT_LOCATION_COLUMN -#define CRYPTUI_SELECT_LOCATION_COLUMN 0x000000010 -#define CRYPTUI_SELECT_INTENDEDUSE_COLUMN 0x000000004 -#endif - -#define dlg_title L"OpenSSL Application SSL Client Certificate Selection" -#define dlg_prompt L"Select a certificate to use for authentication" -#define dlg_columns CRYPTUI_SELECT_LOCATION_COLUMN \ - |CRYPTUI_SELECT_INTENDEDUSE_COLUMN - -static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs) - { - X509 *x; - HCERTSTORE dstore; - PCCERT_CONTEXT cert; - CAPI_CTX *ctx; - CAPI_KEY *key; - HWND hwnd; - int i, idx = -1; - if (sk_X509_num(certs) == 1) - return 0; - ctx = ENGINE_get_ex_data(e, capi_idx); - /* Create an in memory store of certificates */ - dstore = CertOpenStore(CERT_STORE_PROV_MEMORY, 0, 0, - CERT_STORE_CREATE_NEW_FLAG, NULL); - if (!dstore) - { - CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_CREATING_STORE); - capi_addlasterror(); - goto err; - } - /* Add all certificates to store */ - for(i = 0; i < sk_X509_num(certs); i++) - { - x = sk_X509_value(certs, i); - key = X509_get_ex_data(x, cert_capi_idx); - - if (!CertAddCertificateContextToStore(dstore, key->pcert, - CERT_STORE_ADD_NEW, NULL)) - { - CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_ADDING_CERT); - capi_addlasterror(); - goto err; - } - - } - hwnd = GetForegroundWindow(); - if (!hwnd) - hwnd = GetActiveWindow(); - if (!hwnd && ctx->getconswindow) - hwnd = ctx->getconswindow(); - /* Call dialog to select one */ - cert = ctx->certselectdlg(dstore, hwnd, dlg_title, dlg_prompt, - dlg_columns, 0, NULL); - - /* Find matching cert from list */ - if (cert) - { - for(i = 0; i < sk_X509_num(certs); i++) - { - x = sk_X509_value(certs, i); - key = X509_get_ex_data(x, cert_capi_idx); - if (CertCompareCertificate( - X509_ASN_ENCODING | PKCS_7_ASN_ENCODING, - cert->pCertInfo, - key->pcert->pCertInfo)) - { - idx = i; - break; - } - } - } - - err: - if (dstore) - CertCloseStore(dstore, 0); - return idx; - - } -#endif - -#else /* !__COMPILE_CAPIENG */ -#include <openssl/engine.h> -#ifndef OPENSSL_NO_DYNAMIC_ENGINE -OPENSSL_EXPORT -int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns) { return 0; } -IMPLEMENT_DYNAMIC_CHECK_FN() -#else -void ENGINE_load_capi(void){} -#endif -#endif +/* engines/e_capi.c */
+/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
+ * project.
+ */
+/* ====================================================================
+ * Copyright (c) 2008 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.
+ * ====================================================================
+ */
+
+
+#include <stdio.h>
+#include <string.h>
+#include <openssl/crypto.h>
+#include <openssl/buffer.h>
+#include <openssl/bn.h>
+
+#ifdef OPENSSL_SYS_WIN32
+#ifndef OPENSSL_NO_CAPIENG
+
+#include <openssl/rsa.h>
+
+#include <windows.h>
+
+#ifndef _WIN32_WINNT
+#define _WIN32_WINNT 0x0400
+#endif
+
+#include <wincrypt.h>
+
+/*
+ * This module uses several "new" interfaces, among which is
+ * CertGetCertificateContextProperty. CERT_KEY_PROV_INFO_PROP_ID is
+ * one of possible values you can pass to function in question. By
+ * checking if it's defined we can see if wincrypt.h and accompanying
+ * crypt32.lib are in shape. The native MingW32 headers up to and
+ * including __W32API_VERSION 3.14 lack of struct DSSPUBKEY and the
+ * defines CERT_STORE_PROV_SYSTEM_A and CERT_STORE_READONLY_FLAG,
+ * so we check for these too and avoid compiling.
+ * Yes, it's rather "weak" test and if compilation fails,
+ * then re-configure with -DOPENSSL_NO_CAPIENG.
+ */
+#if defined(CERT_KEY_PROV_INFO_PROP_ID) && \
+ defined(CERT_STORE_PROV_SYSTEM_A) && \
+ defined(CERT_STORE_READONLY_FLAG)
+# define __COMPILE_CAPIENG
+#endif /* CERT_KEY_PROV_INFO_PROP_ID */
+#endif /* OPENSSL_NO_CAPIENG */
+#endif /* OPENSSL_SYS_WIN32 */
+
+#ifdef __COMPILE_CAPIENG
+
+#undef X509_EXTENSIONS
+#undef X509_CERT_PAIR
+
+/* Definitions which may be missing from earlier version of headers */
+#ifndef CERT_STORE_OPEN_EXISTING_FLAG
+#define CERT_STORE_OPEN_EXISTING_FLAG 0x00004000
+#endif
+
+#ifndef CERT_STORE_CREATE_NEW_FLAG
+#define CERT_STORE_CREATE_NEW_FLAG 0x00002000
+#endif
+
+#ifndef CERT_SYSTEM_STORE_CURRENT_USER
+#define CERT_SYSTEM_STORE_CURRENT_USER 0x00010000
+#endif
+
+#include <openssl/engine.h>
+#include <openssl/pem.h>
+#include <openssl/x509v3.h>
+
+#include "e_capi_err.h"
+#include "e_capi_err.c"
+
+
+static const char *engine_capi_id = "capi";
+static const char *engine_capi_name = "CryptoAPI ENGINE";
+
+typedef struct CAPI_CTX_st CAPI_CTX;
+typedef struct CAPI_KEY_st CAPI_KEY;
+
+static void capi_addlasterror(void);
+static void capi_adderror(DWORD err);
+
+static void CAPI_trace(CAPI_CTX *ctx, char *format, ...);
+
+static int capi_list_providers(CAPI_CTX *ctx, BIO *out);
+static int capi_list_containers(CAPI_CTX *ctx, BIO *out);
+int capi_list_certs(CAPI_CTX *ctx, BIO *out, char *storename);
+void capi_free_key(CAPI_KEY *key);
+
+static PCCERT_CONTEXT capi_find_cert(CAPI_CTX *ctx, const char *id, HCERTSTORE hstore);
+
+CAPI_KEY *capi_find_key(CAPI_CTX *ctx, const char *id);
+
+static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
+ UI_METHOD *ui_method, void *callback_data);
+static int capi_rsa_sign(int dtype, const unsigned char *m, unsigned int m_len,
+ unsigned char *sigret, unsigned int *siglen, const RSA *rsa);
+static int capi_rsa_priv_enc(int flen, const unsigned char *from,
+ unsigned char *to, RSA *rsa, int padding);
+static int capi_rsa_priv_dec(int flen, const unsigned char *from,
+ unsigned char *to, RSA *rsa, int padding);
+static int capi_rsa_free(RSA *rsa);
+
+static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
+ DSA *dsa);
+static int capi_dsa_free(DSA *dsa);
+
+static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
+ STACK_OF(X509_NAME) *ca_dn, X509 **pcert, EVP_PKEY **pkey,
+ STACK_OF(X509) **pother, UI_METHOD *ui_method, void *callback_data);
+
+static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
+#ifdef OPENSSL_CAPIENG_DIALOG
+static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
+#endif
+
+typedef PCCERT_CONTEXT (WINAPI *CERTDLG)(HCERTSTORE, HWND, LPCWSTR,
+ LPCWSTR, DWORD, DWORD,
+ void *);
+typedef HWND (WINAPI *GETCONSWIN)(void);
+
+/* This structure contains CAPI ENGINE specific data:
+ * it contains various global options and affects how
+ * other functions behave.
+ */
+
+#define CAPI_DBG_TRACE 2
+#define CAPI_DBG_ERROR 1
+
+struct CAPI_CTX_st {
+ int debug_level;
+ char *debug_file;
+ /* Parameters to use for container lookup */
+ DWORD keytype;
+ LPSTR cspname;
+ DWORD csptype;
+ /* Certificate store name to use */
+ LPSTR storename;
+ LPSTR ssl_client_store;
+ /* System store flags */
+ DWORD store_flags;
+
+/* Lookup string meanings in load_private_key */
+/* Substring of subject: uses "storename" */
+#define CAPI_LU_SUBSTR 1
+/* Friendly name: uses storename */
+#define CAPI_LU_FNAME 2
+/* Container name: uses cspname, keytype */
+#define CAPI_LU_CONTNAME 3
+ int lookup_method;
+/* Info to dump with dumpcerts option */
+/* Issuer and serial name strings */
+#define CAPI_DMP_SUMMARY 0x1
+/* Friendly name */
+#define CAPI_DMP_FNAME 0x2
+/* Full X509_print dump */
+#define CAPI_DMP_FULL 0x4
+/* Dump PEM format certificate */
+#define CAPI_DMP_PEM 0x8
+/* Dump pseudo key (if possible) */
+#define CAPI_DMP_PSKEY 0x10
+/* Dump key info (if possible) */
+#define CAPI_DMP_PKEYINFO 0x20
+
+ DWORD dump_flags;
+ int (*client_cert_select)(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs);
+
+ CERTDLG certselectdlg;
+ GETCONSWIN getconswindow;
+};
+
+
+static CAPI_CTX *capi_ctx_new();
+static void capi_ctx_free(CAPI_CTX *ctx);
+static int capi_ctx_set_provname(CAPI_CTX *ctx, LPSTR pname, DWORD type, int check);
+static int capi_ctx_set_provname_idx(CAPI_CTX *ctx, int idx);
+
+#define CAPI_CMD_LIST_CERTS ENGINE_CMD_BASE
+#define CAPI_CMD_LOOKUP_CERT (ENGINE_CMD_BASE + 1)
+#define CAPI_CMD_DEBUG_LEVEL (ENGINE_CMD_BASE + 2)
+#define CAPI_CMD_DEBUG_FILE (ENGINE_CMD_BASE + 3)
+#define CAPI_CMD_KEYTYPE (ENGINE_CMD_BASE + 4)
+#define CAPI_CMD_LIST_CSPS (ENGINE_CMD_BASE + 5)
+#define CAPI_CMD_SET_CSP_IDX (ENGINE_CMD_BASE + 6)
+#define CAPI_CMD_SET_CSP_NAME (ENGINE_CMD_BASE + 7)
+#define CAPI_CMD_SET_CSP_TYPE (ENGINE_CMD_BASE + 8)
+#define CAPI_CMD_LIST_CONTAINERS (ENGINE_CMD_BASE + 9)
+#define CAPI_CMD_LIST_OPTIONS (ENGINE_CMD_BASE + 10)
+#define CAPI_CMD_LOOKUP_METHOD (ENGINE_CMD_BASE + 11)
+#define CAPI_CMD_STORE_NAME (ENGINE_CMD_BASE + 12)
+#define CAPI_CMD_STORE_FLAGS (ENGINE_CMD_BASE + 13)
+
+static const ENGINE_CMD_DEFN capi_cmd_defns[] = {
+ {CAPI_CMD_LIST_CERTS,
+ "list_certs",
+ "List all certificates in store",
+ ENGINE_CMD_FLAG_NO_INPUT},
+ {CAPI_CMD_LOOKUP_CERT,
+ "lookup_cert",
+ "Lookup and output certificates",
+ ENGINE_CMD_FLAG_STRING},
+ {CAPI_CMD_DEBUG_LEVEL,
+ "debug_level",
+ "debug level (1=errors, 2=trace)",
+ ENGINE_CMD_FLAG_NUMERIC},
+ {CAPI_CMD_DEBUG_FILE,
+ "debug_file",
+ "debugging filename)",
+ ENGINE_CMD_FLAG_STRING},
+ {CAPI_CMD_KEYTYPE,
+ "key_type",
+ "Key type: 1=AT_KEYEXCHANGE (default), 2=AT_SIGNATURE",
+ ENGINE_CMD_FLAG_NUMERIC},
+ {CAPI_CMD_LIST_CSPS,
+ "list_csps",
+ "List all CSPs",
+ ENGINE_CMD_FLAG_NO_INPUT},
+ {CAPI_CMD_SET_CSP_IDX,
+ "csp_idx",
+ "Set CSP by index",
+ ENGINE_CMD_FLAG_NUMERIC},
+ {CAPI_CMD_SET_CSP_NAME,
+ "csp_name",
+ "Set CSP name, (default CSP used if not specified)",
+ ENGINE_CMD_FLAG_STRING},
+ {CAPI_CMD_SET_CSP_TYPE,
+ "csp_type",
+ "Set CSP type, (default RSA_PROV_FULL)",
+ ENGINE_CMD_FLAG_NUMERIC},
+ {CAPI_CMD_LIST_CONTAINERS,
+ "list_containers",
+ "list container names",
+ ENGINE_CMD_FLAG_NO_INPUT},
+ {CAPI_CMD_LIST_OPTIONS,
+ "list_options",
+ "Set list options (1=summary,2=friendly name, 4=full printout, 8=PEM output, 16=XXX, "
+ "32=private key info)",
+ ENGINE_CMD_FLAG_NUMERIC},
+ {CAPI_CMD_LOOKUP_METHOD,
+ "lookup_method",
+ "Set key lookup method (1=substring, 2=friendlyname, 3=container name)",
+ ENGINE_CMD_FLAG_NUMERIC},
+ {CAPI_CMD_STORE_NAME,
+ "store_name",
+ "certificate store name, default \"MY\"",
+ ENGINE_CMD_FLAG_STRING},
+ {CAPI_CMD_STORE_FLAGS,
+ "store_flags",
+ "Certificate store flags: 1 = system store",
+ ENGINE_CMD_FLAG_NUMERIC},
+
+ {0, NULL, NULL, 0}
+ };
+
+static int capi_idx = -1;
+static int rsa_capi_idx = -1;
+static int dsa_capi_idx = -1;
+static int cert_capi_idx = -1;
+
+static int capi_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void))
+ {
+ int ret = 1;
+ CAPI_CTX *ctx;
+ BIO *out;
+ if (capi_idx == -1)
+ {
+ CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_ENGINE_NOT_INITIALIZED);
+ return 0;
+ }
+ ctx = ENGINE_get_ex_data(e, capi_idx);
+ out = BIO_new_fp(stdout, BIO_NOCLOSE);
+ switch (cmd)
+ {
+ case CAPI_CMD_LIST_CSPS:
+ ret = capi_list_providers(ctx, out);
+ break;
+
+ case CAPI_CMD_LIST_CERTS:
+ ret = capi_list_certs(ctx, out, NULL);
+ break;
+
+ case CAPI_CMD_LOOKUP_CERT:
+ ret = capi_list_certs(ctx, out, p);
+ break;
+
+ case CAPI_CMD_LIST_CONTAINERS:
+ ret = capi_list_containers(ctx, out);
+ break;
+
+ case CAPI_CMD_STORE_NAME:
+ if (ctx->storename)
+ OPENSSL_free(ctx->storename);
+ ctx->storename = BUF_strdup(p);
+ CAPI_trace(ctx, "Setting store name to %s\n", p);
+ break;
+
+ case CAPI_CMD_STORE_FLAGS:
+ if (i & 1)
+ {
+ ctx->store_flags |= CERT_SYSTEM_STORE_LOCAL_MACHINE;
+ ctx->store_flags &= ~CERT_SYSTEM_STORE_CURRENT_USER;
+ }
+ else
+ {
+ ctx->store_flags |= CERT_SYSTEM_STORE_CURRENT_USER;
+ ctx->store_flags &= ~CERT_SYSTEM_STORE_LOCAL_MACHINE;
+ }
+ CAPI_trace(ctx, "Setting flags to %d\n", i);
+ break;
+
+ case CAPI_CMD_DEBUG_LEVEL:
+ ctx->debug_level = (int)i;
+ CAPI_trace(ctx, "Setting debug level to %d\n", ctx->debug_level);
+ break;
+
+ case CAPI_CMD_DEBUG_FILE:
+ ctx->debug_file = BUF_strdup(p);
+ CAPI_trace(ctx, "Setting debug file to %s\n", ctx->debug_file);
+ break;
+
+ case CAPI_CMD_KEYTYPE:
+ ctx->keytype = i;
+ CAPI_trace(ctx, "Setting key type to %d\n", ctx->keytype);
+ break;
+
+ case CAPI_CMD_SET_CSP_IDX:
+ ret = capi_ctx_set_provname_idx(ctx, i);
+ break;
+
+ case CAPI_CMD_LIST_OPTIONS:
+ ctx->dump_flags = i;
+ break;
+
+ case CAPI_CMD_LOOKUP_METHOD:
+ if (i < 1 || i > 3)
+ {
+ CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_INVALID_LOOKUP_METHOD);
+ return 0;
+ }
+ ctx->lookup_method = i;
+ break;
+
+ case CAPI_CMD_SET_CSP_NAME:
+ ret = capi_ctx_set_provname(ctx, p, ctx->csptype, 1);
+ break;
+
+ case CAPI_CMD_SET_CSP_TYPE:
+ ctx->csptype = i;
+ break;
+
+ default:
+ CAPIerr(CAPI_F_CAPI_CTRL, CAPI_R_UNKNOWN_COMMAND);
+ ret = 0;
+ }
+
+ BIO_free(out);
+ return ret;
+
+ }
+
+static RSA_METHOD capi_rsa_method =
+ {
+ "CryptoAPI RSA method",
+ 0, /* pub_enc */
+ 0, /* pub_dec */
+ capi_rsa_priv_enc, /* priv_enc */
+ capi_rsa_priv_dec, /* priv_dec */
+ 0, /* rsa_mod_exp */
+ 0, /* bn_mod_exp */
+ 0, /* init */
+ capi_rsa_free, /* finish */
+ RSA_FLAG_SIGN_VER, /* flags */
+ NULL, /* app_data */
+ capi_rsa_sign, /* rsa_sign */
+ 0 /* rsa_verify */
+ };
+
+static DSA_METHOD capi_dsa_method =
+ {
+ "CryptoAPI DSA method",
+ capi_dsa_do_sign, /* dsa_do_sign */
+ 0, /* dsa_sign_setup */
+ 0, /* dsa_do_verify */
+ 0, /* dsa_mod_exp */
+ 0, /* bn_mod_exp */
+ 0, /* init */
+ capi_dsa_free, /* finish */
+ 0, /* flags */
+ NULL, /* app_data */
+ 0, /* dsa_paramgen */
+ 0 /* dsa_keygen */
+ };
+
+static int capi_init(ENGINE *e)
+ {
+ CAPI_CTX *ctx;
+ const RSA_METHOD *ossl_rsa_meth;
+ const DSA_METHOD *ossl_dsa_meth;
+ capi_idx = ENGINE_get_ex_new_index(0, NULL, NULL, NULL, 0);
+ cert_capi_idx = X509_get_ex_new_index(0, NULL, NULL, NULL, 0);
+
+ ctx = capi_ctx_new();
+ if (!ctx || (capi_idx < 0))
+ goto memerr;
+
+ ENGINE_set_ex_data(e, capi_idx, ctx);
+ /* Setup RSA_METHOD */
+ rsa_capi_idx = RSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
+ ossl_rsa_meth = RSA_PKCS1_SSLeay();
+ capi_rsa_method.rsa_pub_enc = ossl_rsa_meth->rsa_pub_enc;
+ capi_rsa_method.rsa_pub_dec = ossl_rsa_meth->rsa_pub_dec;
+ capi_rsa_method.rsa_mod_exp = ossl_rsa_meth->rsa_mod_exp;
+ capi_rsa_method.bn_mod_exp = ossl_rsa_meth->bn_mod_exp;
+
+ /* Setup DSA Method */
+ dsa_capi_idx = DSA_get_ex_new_index(0, NULL, NULL, NULL, 0);
+ ossl_dsa_meth = DSA_OpenSSL();
+ capi_dsa_method.dsa_do_verify = ossl_dsa_meth->dsa_do_verify;
+ capi_dsa_method.dsa_mod_exp = ossl_dsa_meth->dsa_mod_exp;
+ capi_dsa_method.bn_mod_exp = ossl_dsa_meth->bn_mod_exp;
+
+#ifdef OPENSSL_CAPIENG_DIALOG
+ {
+ HMODULE cryptui = LoadLibrary(TEXT("CRYPTUI.DLL"));
+ HMODULE kernel = GetModuleHandle(TEXT("KERNEL32.DLL"));
+ if (cryptui)
+ ctx->certselectdlg = (CERTDLG)GetProcAddress(cryptui, "CryptUIDlgSelectCertificateFromStore");
+ if (kernel)
+ ctx->getconswindow = (GETCONSWIN)GetProcAddress(kernel, "GetConsoleWindow");
+ if (cryptui && !OPENSSL_isservice())
+ ctx->client_cert_select = cert_select_dialog;
+ }
+#endif
+
+
+ return 1;
+
+ memerr:
+ CAPIerr(CAPI_F_CAPI_INIT, ERR_R_MALLOC_FAILURE);
+ return 0;
+
+ return 1;
+ }
+
+static int capi_destroy(ENGINE *e)
+ {
+ ERR_unload_CAPI_strings();
+ return 1;
+ }
+
+static int capi_finish(ENGINE *e)
+ {
+ CAPI_CTX *ctx;
+ ctx = ENGINE_get_ex_data(e, capi_idx);
+ capi_ctx_free(ctx);
+ ENGINE_set_ex_data(e, capi_idx, NULL);
+ return 1;
+ }
+
+
+/* CryptoAPI key application data. This contains
+ * a handle to the private key container (for sign operations)
+ * and a handle to the key (for decrypt operations).
+ */
+
+struct CAPI_KEY_st
+ {
+ /* Associated certificate context (if any) */
+ PCCERT_CONTEXT pcert;
+ HCRYPTPROV hprov;
+ HCRYPTKEY key;
+ DWORD keyspec;
+ };
+
+static int bind_capi(ENGINE *e)
+ {
+ if (!ENGINE_set_id(e, engine_capi_id)
+ || !ENGINE_set_name(e, engine_capi_name)
+ || !ENGINE_set_init_function(e, capi_init)
+ || !ENGINE_set_finish_function(e, capi_finish)
+ || !ENGINE_set_destroy_function(e, capi_destroy)
+ || !ENGINE_set_RSA(e, &capi_rsa_method)
+ || !ENGINE_set_DSA(e, &capi_dsa_method)
+ || !ENGINE_set_load_privkey_function(e, capi_load_privkey)
+ || !ENGINE_set_load_ssl_client_cert_function(e,
+ capi_load_ssl_client_cert)
+ || !ENGINE_set_cmd_defns(e, capi_cmd_defns)
+ || !ENGINE_set_ctrl_function(e, capi_ctrl))
+ return 0;
+ ERR_load_CAPI_strings();
+
+ return 1;
+
+ }
+
+#ifndef OPENSSL_NO_DYNAMIC_ENGINE
+static int bind_helper(ENGINE *e, const char *id)
+ {
+ if(id && (strcmp(id, engine_capi_id) != 0))
+ return 0;
+ if(!bind_capi(e))
+ return 0;
+ return 1;
+ }
+IMPLEMENT_DYNAMIC_CHECK_FN()
+IMPLEMENT_DYNAMIC_BIND_FN(bind_helper)
+#else
+static ENGINE *engine_capi(void)
+ {
+ ENGINE *ret = ENGINE_new();
+ if(!ret)
+ return NULL;
+ if(!bind_capi(ret))
+ {
+ ENGINE_free(ret);
+ return NULL;
+ }
+ return ret;
+ }
+
+void ENGINE_load_capi(void)
+ {
+ /* Copied from eng_[openssl|dyn].c */
+ ENGINE *toadd = engine_capi();
+ if(!toadd) return;
+ ENGINE_add(toadd);
+ ENGINE_free(toadd);
+ ERR_clear_error();
+ }
+#endif
+
+
+static int lend_tobn(BIGNUM *bn, unsigned char *bin, int binlen)
+ {
+ int i;
+ /* Reverse buffer in place: since this is a keyblob structure
+ * that will be freed up after conversion anyway it doesn't
+ * matter if we change it.
+ */
+ for(i = 0; i < binlen / 2; i++)
+ {
+ unsigned char c;
+ c = bin[i];
+ bin[i] = bin[binlen - i - 1];
+ bin[binlen - i - 1] = c;
+ }
+
+ if (!BN_bin2bn(bin, binlen, bn))
+ return 0;
+ return 1;
+ }
+
+/* Given a CAPI_KEY get an EVP_PKEY structure */
+
+static EVP_PKEY *capi_get_pkey(ENGINE *eng, CAPI_KEY *key)
+ {
+ unsigned char *pubkey = NULL;
+ DWORD len;
+ BLOBHEADER *bh;
+ RSA *rkey = NULL;
+ DSA *dkey = NULL;
+ EVP_PKEY *ret = NULL;
+ if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, NULL, &len))
+ {
+ CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_LENGTH_ERROR);
+ capi_addlasterror();
+ return NULL;
+ }
+
+ pubkey = OPENSSL_malloc(len);
+
+ if (!pubkey)
+ goto memerr;
+
+ if (!CryptExportKey(key->key, 0, PUBLICKEYBLOB, 0, pubkey, &len))
+ {
+ CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_PUBKEY_EXPORT_ERROR);
+ capi_addlasterror();
+ goto err;
+ }
+
+ bh = (BLOBHEADER *)pubkey;
+ if (bh->bType != PUBLICKEYBLOB)
+ {
+ CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_PUBLIC_KEY_BLOB);
+ goto err;
+ }
+ if (bh->aiKeyAlg == CALG_RSA_SIGN || bh->aiKeyAlg == CALG_RSA_KEYX)
+ {
+ RSAPUBKEY *rp;
+ DWORD rsa_modlen;
+ unsigned char *rsa_modulus;
+ rp = (RSAPUBKEY *)(bh + 1);
+ if (rp->magic != 0x31415352)
+ {
+ char magstr[10];
+ BIO_snprintf(magstr, 10, "%lx", rp->magic);
+ CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_RSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
+ ERR_add_error_data(2, "magic=0x", magstr);
+ goto err;
+ }
+ rsa_modulus = (unsigned char *)(rp + 1);
+ rkey = RSA_new_method(eng);
+ if (!rkey)
+ goto memerr;
+
+ rkey->e = BN_new();
+ rkey->n = BN_new();
+
+ if (!rkey->e || !rkey->n)
+ goto memerr;
+
+ if (!BN_set_word(rkey->e, rp->pubexp))
+ goto memerr;
+
+ rsa_modlen = rp->bitlen / 8;
+ if (!lend_tobn(rkey->n, rsa_modulus, rsa_modlen))
+ goto memerr;
+
+ RSA_set_ex_data(rkey, rsa_capi_idx, key);
+
+ if (!(ret = EVP_PKEY_new()))
+ goto memerr;
+
+ EVP_PKEY_assign_RSA(ret, rkey);
+ rkey = NULL;
+
+ }
+ else if (bh->aiKeyAlg == CALG_DSS_SIGN)
+ {
+ DSSPUBKEY *dp;
+ DWORD dsa_plen;
+ unsigned char *btmp;
+ dp = (DSSPUBKEY *)(bh + 1);
+ if (dp->magic != 0x31535344)
+ {
+ char magstr[10];
+ BIO_snprintf(magstr, 10, "%lx", dp->magic);
+ CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_INVALID_DSA_PUBLIC_KEY_BLOB_MAGIC_NUMBER);
+ ERR_add_error_data(2, "magic=0x", magstr);
+ goto err;
+ }
+ dsa_plen = dp->bitlen / 8;
+ btmp = (unsigned char *)(dp + 1);
+ dkey = DSA_new_method(eng);
+ if (!dkey)
+ goto memerr;
+ dkey->p = BN_new();
+ dkey->q = BN_new();
+ dkey->g = BN_new();
+ dkey->pub_key = BN_new();
+ if (!dkey->p || !dkey->q || !dkey->g || !dkey->pub_key)
+ goto memerr;
+ if (!lend_tobn(dkey->p, btmp, dsa_plen))
+ goto memerr;
+ btmp += dsa_plen;
+ if (!lend_tobn(dkey->q, btmp, 20))
+ goto memerr;
+ btmp += 20;
+ if (!lend_tobn(dkey->g, btmp, dsa_plen))
+ goto memerr;
+ btmp += dsa_plen;
+ if (!lend_tobn(dkey->pub_key, btmp, dsa_plen))
+ goto memerr;
+ btmp += dsa_plen;
+
+ DSA_set_ex_data(dkey, dsa_capi_idx, key);
+
+ if (!(ret = EVP_PKEY_new()))
+ goto memerr;
+
+ EVP_PKEY_assign_DSA(ret, dkey);
+ dkey = NULL;
+ }
+ else
+ {
+ char algstr[10];
+ BIO_snprintf(algstr, 10, "%lx", bh->aiKeyAlg);
+ CAPIerr(CAPI_F_CAPI_GET_PKEY, CAPI_R_UNSUPPORTED_PUBLIC_KEY_ALGORITHM);
+ ERR_add_error_data(2, "aiKeyAlg=0x", algstr);
+ goto err;
+ }
+
+
+ err:
+ if (pubkey)
+ OPENSSL_free(pubkey);
+ if (!ret)
+ {
+ if (rkey)
+ RSA_free(rkey);
+ if (dkey)
+ DSA_free(dkey);
+ }
+
+ return ret;
+
+memerr:
+ CAPIerr(CAPI_F_CAPI_GET_PKEY, ERR_R_MALLOC_FAILURE);
+ goto err;
+
+ }
+
+static EVP_PKEY *capi_load_privkey(ENGINE *eng, const char *key_id,
+ UI_METHOD *ui_method, void *callback_data)
+ {
+ CAPI_CTX *ctx;
+ CAPI_KEY *key;
+ EVP_PKEY *ret;
+ ctx = ENGINE_get_ex_data(eng, capi_idx);
+
+ if (!ctx)
+ {
+ CAPIerr(CAPI_F_CAPI_LOAD_PRIVKEY, CAPI_R_CANT_FIND_CAPI_CONTEXT);
+ return NULL;
+ }
+
+ key = capi_find_key(ctx, key_id);
+
+ if (!key)
+ return NULL;
+
+ ret = capi_get_pkey(eng, key);
+
+ if (!ret)
+ capi_free_key(key);
+ return ret;
+
+ }
+
+/* CryptoAPI RSA operations */
+
+int capi_rsa_priv_enc(int flen, const unsigned char *from,
+ unsigned char *to, RSA *rsa, int padding)
+ {
+ CAPIerr(CAPI_F_CAPI_RSA_PRIV_ENC, CAPI_R_FUNCTION_NOT_SUPPORTED);
+ return -1;
+ }
+
+int capi_rsa_sign(int dtype, const unsigned char *m, unsigned int m_len,
+ unsigned char *sigret, unsigned int *siglen, const RSA *rsa)
+ {
+ ALG_ID alg;
+ HCRYPTHASH hash;
+ DWORD slen;
+ unsigned int i;
+ int ret = -1;
+ CAPI_KEY *capi_key;
+ CAPI_CTX *ctx;
+
+ ctx = ENGINE_get_ex_data(rsa->engine, capi_idx);
+
+ CAPI_trace(ctx, "Called CAPI_rsa_sign()\n");
+
+ capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
+ if (!capi_key)
+ {
+ CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_GET_KEY);
+ return -1;
+ }
+/* Convert the signature type to a CryptoAPI algorithm ID */
+ switch(dtype)
+ {
+ case NID_sha1:
+ alg = CALG_SHA1;
+ break;
+
+ case NID_md5:
+ alg = CALG_MD5;
+ break;
+
+ case NID_md5_sha1:
+ alg = CALG_SSL3_SHAMD5;
+ break;
+ default:
+ {
+ char algstr[10];
+ BIO_snprintf(algstr, 10, "%lx", dtype);
+ CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_UNSUPPORTED_ALGORITHM_NID);
+ ERR_add_error_data(2, "NID=0x", algstr);
+ return -1;
+ }
+ }
+
+
+
+/* Create the hash object */
+ if(!CryptCreateHash(capi_key->hprov, alg, 0, 0, &hash))
+ {
+ CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
+ capi_addlasterror();
+ return -1;
+ }
+/* Set the hash value to the value passed */
+
+ if(!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)m, 0))
+ {
+ CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
+ capi_addlasterror();
+ goto err;
+ }
+
+
+/* Finally sign it */
+ slen = RSA_size(rsa);
+ if(!CryptSignHashA(hash, capi_key->keyspec, NULL, 0, sigret, &slen))
+ {
+ CAPIerr(CAPI_F_CAPI_RSA_SIGN, CAPI_R_ERROR_SIGNING_HASH);
+ capi_addlasterror();
+ goto err;
+ }
+ else
+ {
+ ret = 1;
+ /* Inplace byte reversal of signature */
+ for(i = 0; i < slen / 2; i++)
+ {
+ unsigned char c;
+ c = sigret[i];
+ sigret[i] = sigret[slen - i - 1];
+ sigret[slen - i - 1] = c;
+ }
+ *siglen = slen;
+ }
+
+ /* Now cleanup */
+
+err:
+ CryptDestroyHash(hash);
+
+ return ret;
+ }
+
+int capi_rsa_priv_dec(int flen, const unsigned char *from,
+ unsigned char *to, RSA *rsa, int padding)
+ {
+ int i;
+ unsigned char *tmpbuf;
+ CAPI_KEY *capi_key;
+ CAPI_CTX *ctx;
+ ctx = ENGINE_get_ex_data(rsa->engine, capi_idx);
+
+ CAPI_trace(ctx, "Called capi_rsa_priv_dec()\n");
+
+
+ capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
+ if (!capi_key)
+ {
+ CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_CANT_GET_KEY);
+ return -1;
+ }
+
+ if(padding != RSA_PKCS1_PADDING)
+ {
+ char errstr[10];
+ BIO_snprintf(errstr, 10, "%d", padding);
+ CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_UNSUPPORTED_PADDING);
+ ERR_add_error_data(2, "padding=", errstr);
+ return -1;
+ }
+
+ /* Create temp reverse order version of input */
+ if(!(tmpbuf = OPENSSL_malloc(flen)) )
+ {
+ CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, ERR_R_MALLOC_FAILURE);
+ return -1;
+ }
+ for(i = 0; i < flen; i++)
+ tmpbuf[flen - i - 1] = from[i];
+
+ /* Finally decrypt it */
+ if(!CryptDecrypt(capi_key->key, 0, TRUE, 0, tmpbuf, &flen))
+ {
+ CAPIerr(CAPI_F_CAPI_RSA_PRIV_DEC, CAPI_R_DECRYPT_ERROR);
+ capi_addlasterror();
+ OPENSSL_free(tmpbuf);
+ return -1;
+ }
+ else memcpy(to, tmpbuf, flen);
+
+ OPENSSL_free(tmpbuf);
+
+ return flen;
+ }
+
+static int capi_rsa_free(RSA *rsa)
+ {
+ CAPI_KEY *capi_key;
+ capi_key = RSA_get_ex_data(rsa, rsa_capi_idx);
+ capi_free_key(capi_key);
+ RSA_set_ex_data(rsa, rsa_capi_idx, 0);
+ return 1;
+ }
+
+/* CryptoAPI DSA operations */
+
+static DSA_SIG *capi_dsa_do_sign(const unsigned char *digest, int dlen,
+ DSA *dsa)
+ {
+ HCRYPTHASH hash;
+ DWORD slen;
+ DSA_SIG *ret = NULL;
+ CAPI_KEY *capi_key;
+ CAPI_CTX *ctx;
+ unsigned char csigbuf[40];
+
+ ctx = ENGINE_get_ex_data(dsa->engine, capi_idx);
+
+ CAPI_trace(ctx, "Called CAPI_dsa_do_sign()\n");
+
+ capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
+
+ if (!capi_key)
+ {
+ CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_GET_KEY);
+ return NULL;
+ }
+
+ if (dlen != 20)
+ {
+ CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_INVALID_DIGEST_LENGTH);
+ return NULL;
+ }
+
+ /* Create the hash object */
+ if(!CryptCreateHash(capi_key->hprov, CALG_SHA1, 0, 0, &hash))
+ {
+ CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_CREATE_HASH_OBJECT);
+ capi_addlasterror();
+ return NULL;
+ }
+
+ /* Set the hash value to the value passed */
+ if(!CryptSetHashParam(hash, HP_HASHVAL, (unsigned char *)digest, 0))
+ {
+ CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_CANT_SET_HASH_VALUE);
+ capi_addlasterror();
+ goto err;
+ }
+
+
+ /* Finally sign it */
+ slen = sizeof(csigbuf);
+ if(!CryptSignHashA(hash, capi_key->keyspec, NULL, 0, csigbuf, &slen))
+ {
+ CAPIerr(CAPI_F_CAPI_DSA_DO_SIGN, CAPI_R_ERROR_SIGNING_HASH);
+ capi_addlasterror();
+ goto err;
+ }
+ else
+ {
+ ret = DSA_SIG_new();
+ if (!ret)
+ goto err;
+ ret->r = BN_new();
+ ret->s = BN_new();
+ if (!ret->r || !ret->s)
+ goto err;
+ if (!lend_tobn(ret->r, csigbuf, 20)
+ || !lend_tobn(ret->s, csigbuf + 20, 20))
+ {
+ DSA_SIG_free(ret);
+ ret = NULL;
+ goto err;
+ }
+ }
+
+ /* Now cleanup */
+
+err:
+ OPENSSL_cleanse(csigbuf, 40);
+ CryptDestroyHash(hash);
+ return ret;
+ }
+
+static int capi_dsa_free(DSA *dsa)
+ {
+ CAPI_KEY *capi_key;
+ capi_key = DSA_get_ex_data(dsa, dsa_capi_idx);
+ capi_free_key(capi_key);
+ DSA_set_ex_data(dsa, dsa_capi_idx, 0);
+ return 1;
+ }
+
+static void capi_vtrace(CAPI_CTX *ctx, int level, char *format, va_list argptr)
+ {
+ BIO *out;
+
+ if (!ctx || (ctx->debug_level < level) || (!ctx->debug_file))
+ return;
+ out = BIO_new_file(ctx->debug_file, "a+");
+ BIO_vprintf(out, format, argptr);
+ BIO_free(out);
+ }
+
+static void CAPI_trace(CAPI_CTX *ctx, char *format, ...)
+ {
+ va_list args;
+ va_start(args, format);
+ capi_vtrace(ctx, CAPI_DBG_TRACE, format, args);
+ va_end(args);
+ }
+
+static void capi_addlasterror(void)
+ {
+ capi_adderror(GetLastError());
+ }
+
+static void capi_adderror(DWORD err)
+ {
+ char errstr[10];
+ BIO_snprintf(errstr, 10, "%lX", err);
+ ERR_add_error_data(2, "Error code= 0x", errstr);
+ }
+
+static char *wide_to_asc(LPWSTR wstr)
+ {
+ char *str;
+ int len_0,sz;
+
+ if (!wstr)
+ return NULL;
+ len_0 = (int)wcslen(wstr)+1; /* WideCharToMultiByte expects int */
+ sz = WideCharToMultiByte(CP_ACP,0,wstr,len_0,NULL,0,NULL,NULL);
+ if (!sz)
+ {
+ CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);
+ return NULL;
+ }
+ str = OPENSSL_malloc(sz);
+ if (!str)
+ {
+ CAPIerr(CAPI_F_WIDE_TO_ASC, ERR_R_MALLOC_FAILURE);
+ return NULL;
+ }
+ if (!WideCharToMultiByte(CP_ACP,0,wstr,len_0,str,sz,NULL,NULL))
+ {
+ OPENSSL_free(str);
+ CAPIerr(CAPI_F_WIDE_TO_ASC, CAPI_R_WIN32_ERROR);
+ return NULL;
+ }
+ return str;
+ }
+
+static int capi_get_provname(CAPI_CTX *ctx, LPSTR *pname, DWORD *ptype, DWORD idx)
+ {
+ LPSTR name;
+ DWORD len, err;
+ CAPI_trace(ctx, "capi_get_provname, index=%d\n", idx);
+ if (!CryptEnumProvidersA(idx, NULL, 0, ptype, NULL, &len))
+ {
+ err = GetLastError();
+ if (err == ERROR_NO_MORE_ITEMS)
+ return 2;
+ CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
+ capi_adderror(err);
+ return 0;
+ }
+ name = OPENSSL_malloc(len);
+ if (!CryptEnumProvidersA(idx, NULL, 0, ptype, name, &len))
+ {
+ err = GetLastError();
+ if (err == ERROR_NO_MORE_ITEMS)
+ return 2;
+ CAPIerr(CAPI_F_CAPI_GET_PROVNAME, CAPI_R_CRYPTENUMPROVIDERS_ERROR);
+ capi_adderror(err);
+ return 0;
+ }
+ *pname = name;
+ CAPI_trace(ctx, "capi_get_provname, returned name=%s, type=%d\n", name, *ptype);
+
+ return 1;
+ }
+
+static int capi_list_providers(CAPI_CTX *ctx, BIO *out)
+ {
+ DWORD idx, ptype;
+ int ret;
+ LPSTR provname = NULL;
+ CAPI_trace(ctx, "capi_list_providers\n");
+ BIO_printf(out, "Available CSPs:\n");
+ for(idx = 0; ; idx++)
+ {
+ ret = capi_get_provname(ctx, &provname, &ptype, idx);
+ if (ret == 2)
+ break;
+ if (ret == 0)
+ break;
+ BIO_printf(out, "%d. %s, type %d\n", idx, provname, ptype);
+ OPENSSL_free(provname);
+ }
+ return 1;
+ }
+
+static int capi_list_containers(CAPI_CTX *ctx, BIO *out)
+ {
+ int ret = 1;
+ HCRYPTPROV hprov;
+ DWORD err, idx, flags, buflen = 0, clen;
+ LPSTR cname;
+ CAPI_trace(ctx, "Listing containers CSP=%s, type = %d\n", ctx->cspname, ctx->csptype);
+ if (!CryptAcquireContextA(&hprov, NULL, ctx->cspname, ctx->csptype, CRYPT_VERIFYCONTEXT))
+ {
+ CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
+ capi_addlasterror();
+ return 0;
+ }
+ if (!CryptGetProvParam(hprov, PP_ENUMCONTAINERS, NULL, &buflen, CRYPT_FIRST))
+ {
+ CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
+ capi_addlasterror();
+ return 0;
+ }
+ CAPI_trace(ctx, "Got max container len %d\n", buflen);
+ if (buflen == 0)
+ buflen = 1024;
+ cname = OPENSSL_malloc(buflen);
+ if (!cname)
+ {
+ CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+
+ for (idx = 0;;idx++)
+ {
+ clen = buflen;
+ cname[0] = 0;
+
+ if (idx == 0)
+ flags = CRYPT_FIRST;
+ else
+ flags = 0;
+ if(!CryptGetProvParam(hprov, PP_ENUMCONTAINERS, cname, &clen, flags))
+ {
+ err = GetLastError();
+ if (err == ERROR_NO_MORE_ITEMS)
+ goto done;
+ CAPIerr(CAPI_F_CAPI_LIST_CONTAINERS, CAPI_R_ENUMCONTAINERS_ERROR);
+ capi_adderror(err);
+ goto err;
+ }
+ CAPI_trace(ctx, "Container name %s, len=%d, index=%d, flags=%d\n", cname, clen, idx, flags);
+ if (!cname[0] && (clen == buflen))
+ {
+ CAPI_trace(ctx, "Enumerate bug: using workaround\n");
+ goto done;
+ }
+ BIO_printf(out, "%d. %s\n", idx, cname);
+ }
+ err:
+
+ ret = 0;
+
+ done:
+ if (cname)
+ OPENSSL_free(cname);
+ CryptReleaseContext(hprov, 0);
+
+ return ret;
+ }
+
+CRYPT_KEY_PROV_INFO *capi_get_prov_info(CAPI_CTX *ctx, PCCERT_CONTEXT cert)
+ {
+ DWORD len;
+ CRYPT_KEY_PROV_INFO *pinfo;
+
+ if(!CertGetCertificateContextProperty(cert, CERT_KEY_PROV_INFO_PROP_ID, NULL, &len))
+ return NULL;
+ pinfo = OPENSSL_malloc(len);
+ if (!pinfo)
+ {
+ CAPIerr(CAPI_F_CAPI_GET_PROV_INFO, ERR_R_MALLOC_FAILURE);
+ return NULL;
+ }
+ if(!CertGetCertificateContextProperty(cert, CERT_KEY_PROV_INFO_PROP_ID, pinfo, &len))
+ {
+ CAPIerr(CAPI_F_CAPI_GET_PROV_INFO, CAPI_R_ERROR_GETTING_KEY_PROVIDER_INFO);
+ capi_addlasterror();
+ OPENSSL_free(pinfo);
+ return NULL;
+ }
+ return pinfo;
+ }
+
+static void capi_dump_prov_info(CAPI_CTX *ctx, BIO *out, CRYPT_KEY_PROV_INFO *pinfo)
+ {
+ char *provname = NULL, *contname = NULL;
+ if (!pinfo)
+ {
+ BIO_printf(out, " No Private Key\n");
+ return;
+ }
+ provname = wide_to_asc(pinfo->pwszProvName);
+ contname = wide_to_asc(pinfo->pwszContainerName);
+ if (!provname || !contname)
+ goto err;
+
+ BIO_printf(out, " Private Key Info:\n");
+ BIO_printf(out, " Provider Name: %s, Provider Type %d\n", provname, pinfo->dwProvType);
+ BIO_printf(out, " Container Name: %s, Key Type %d\n", contname, pinfo->dwKeySpec);
+ err:
+ if (provname)
+ OPENSSL_free(provname);
+ if (contname)
+ OPENSSL_free(contname);
+ }
+
+char * capi_cert_get_fname(CAPI_CTX *ctx, PCCERT_CONTEXT cert)
+ {
+ LPWSTR wfname;
+ DWORD dlen;
+
+ CAPI_trace(ctx, "capi_cert_get_fname\n");
+ if (!CertGetCertificateContextProperty(cert, CERT_FRIENDLY_NAME_PROP_ID, NULL, &dlen))
+ return NULL;
+ wfname = OPENSSL_malloc(dlen);
+ if (CertGetCertificateContextProperty(cert, CERT_FRIENDLY_NAME_PROP_ID, wfname, &dlen))
+ {
+ char *fname = wide_to_asc(wfname);
+ OPENSSL_free(wfname);
+ return fname;
+ }
+ CAPIerr(CAPI_F_CAPI_CERT_GET_FNAME, CAPI_R_ERROR_GETTING_FRIENDLY_NAME);
+ capi_addlasterror();
+
+ OPENSSL_free(wfname);
+ return NULL;
+ }
+
+
+void capi_dump_cert(CAPI_CTX *ctx, BIO *out, PCCERT_CONTEXT cert)
+ {
+ X509 *x;
+ unsigned char *p;
+ unsigned long flags = ctx->dump_flags;
+ if (flags & CAPI_DMP_FNAME)
+ {
+ char *fname;
+ fname = capi_cert_get_fname(ctx, cert);
+ if (fname)
+ {
+ BIO_printf(out, " Friendly Name \"%s\"\n", fname);
+ OPENSSL_free(fname);
+ }
+ else
+ BIO_printf(out, " <No Friendly Name>\n");
+ }
+
+ p = cert->pbCertEncoded;
+ x = d2i_X509(NULL, &p, cert->cbCertEncoded);
+ if (!x)
+ BIO_printf(out, " <Can't parse certificate>\n");
+ if (flags & CAPI_DMP_SUMMARY)
+ {
+ BIO_printf(out, " Subject: ");
+ X509_NAME_print_ex(out, X509_get_subject_name(x), 0, XN_FLAG_ONELINE);
+ BIO_printf(out, "\n Issuer: ");
+ X509_NAME_print_ex(out, X509_get_issuer_name(x), 0, XN_FLAG_ONELINE);
+ BIO_printf(out, "\n");
+ }
+ if (flags & CAPI_DMP_FULL)
+ X509_print_ex(out, x, XN_FLAG_ONELINE,0);
+
+ if (flags & CAPI_DMP_PKEYINFO)
+ {
+ CRYPT_KEY_PROV_INFO *pinfo;
+ pinfo = capi_get_prov_info(ctx, cert);
+ capi_dump_prov_info(ctx, out, pinfo);
+ if (pinfo)
+ OPENSSL_free(pinfo);
+ }
+
+ if (flags & CAPI_DMP_PEM)
+ PEM_write_bio_X509(out, x);
+ X509_free(x);
+ }
+
+HCERTSTORE capi_open_store(CAPI_CTX *ctx, char *storename)
+ {
+ HCERTSTORE hstore;
+
+ if (!storename)
+ storename = ctx->storename;
+ if (!storename)
+ storename = "MY";
+ CAPI_trace(ctx, "Opening certificate store %s\n", storename);
+
+ hstore = CertOpenStore(CERT_STORE_PROV_SYSTEM_A, 0, 0,
+ ctx->store_flags, storename);
+ if (!hstore)
+ {
+ CAPIerr(CAPI_F_CAPI_OPEN_STORE, CAPI_R_ERROR_OPENING_STORE);
+ capi_addlasterror();
+ }
+ return hstore;
+ }
+
+int capi_list_certs(CAPI_CTX *ctx, BIO *out, char *id)
+ {
+ char *storename;
+ int idx;
+ int ret = 1;
+ HCERTSTORE hstore;
+ PCCERT_CONTEXT cert = NULL;
+
+ storename = ctx->storename;
+ if (!storename)
+ storename = "MY";
+ CAPI_trace(ctx, "Listing certs for store %s\n", storename);
+
+ hstore = capi_open_store(ctx, storename);
+ if (!hstore)
+ return 0;
+ if (id)
+ {
+ cert = capi_find_cert(ctx, id, hstore);
+ if (!cert)
+ {
+ ret = 0;
+ goto err;
+ }
+ capi_dump_cert(ctx, out, cert);
+ CertFreeCertificateContext(cert);
+ }
+ else
+ {
+ for(idx = 0;;idx++)
+ {
+ LPWSTR fname = NULL;
+ cert = CertEnumCertificatesInStore(hstore, cert);
+ if (!cert)
+ break;
+ BIO_printf(out, "Certificate %d\n", idx);
+ capi_dump_cert(ctx, out, cert);
+ }
+ }
+ err:
+ CertCloseStore(hstore, 0);
+ return ret;
+ }
+
+static PCCERT_CONTEXT capi_find_cert(CAPI_CTX *ctx, const char *id, HCERTSTORE hstore)
+ {
+ PCCERT_CONTEXT cert = NULL;
+ char *fname = NULL;
+ int match;
+ switch(ctx->lookup_method)
+ {
+ case CAPI_LU_SUBSTR:
+ return CertFindCertificateInStore(hstore,
+ X509_ASN_ENCODING, 0,
+ CERT_FIND_SUBJECT_STR_A, id, NULL);
+ case CAPI_LU_FNAME:
+ for(;;)
+ {
+ cert = CertEnumCertificatesInStore(hstore, cert);
+ if (!cert)
+ return NULL;
+ fname = capi_cert_get_fname(ctx, cert);
+ if (fname)
+ {
+ if (strcmp(fname, id))
+ match = 0;
+ else
+ match = 1;
+ OPENSSL_free(fname);
+ if (match)
+ return cert;
+ }
+ }
+ default:
+ return NULL;
+ }
+ }
+
+static CAPI_KEY *capi_get_key(CAPI_CTX *ctx, const char *contname, char *provname, DWORD ptype, DWORD keyspec)
+ {
+ CAPI_KEY *key;
+ key = OPENSSL_malloc(sizeof(CAPI_KEY));
+ CAPI_trace(ctx, "capi_get_key, contname=%s, provname=%s, type=%d\n",
+ contname, provname, ptype);
+ if (!CryptAcquireContextA(&key->hprov, contname, provname, ptype, 0))
+ {
+ CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
+ capi_addlasterror();
+ goto err;
+ }
+ if (!CryptGetUserKey(key->hprov, keyspec, &key->key))
+ {
+ CAPIerr(CAPI_F_CAPI_GET_KEY, CAPI_R_GETUSERKEY_ERROR);
+ capi_addlasterror();
+ CryptReleaseContext(key->hprov, 0);
+ goto err;
+ }
+ key->keyspec = keyspec;
+ key->pcert = NULL;
+ return key;
+
+ err:
+ OPENSSL_free(key);
+ return NULL;
+ }
+
+static CAPI_KEY *capi_get_cert_key(CAPI_CTX *ctx, PCCERT_CONTEXT cert)
+ {
+ CAPI_KEY *key = NULL;
+ CRYPT_KEY_PROV_INFO *pinfo = NULL;
+ char *provname = NULL, *contname = NULL;
+ pinfo = capi_get_prov_info(ctx, cert);
+ if (!pinfo)
+ goto err;
+ provname = wide_to_asc(pinfo->pwszProvName);
+ contname = wide_to_asc(pinfo->pwszContainerName);
+ if (!provname || !contname)
+ goto err;
+ key = capi_get_key(ctx, contname, provname,
+ pinfo->dwProvType, pinfo->dwKeySpec);
+
+ err:
+ if (pinfo)
+ OPENSSL_free(pinfo);
+ if (provname)
+ OPENSSL_free(provname);
+ if (contname)
+ OPENSSL_free(contname);
+ return key;
+ }
+
+CAPI_KEY *capi_find_key(CAPI_CTX *ctx, const char *id)
+ {
+ PCCERT_CONTEXT cert;
+ HCERTSTORE hstore;
+ CAPI_KEY *key = NULL;
+ switch (ctx->lookup_method)
+ {
+ case CAPI_LU_SUBSTR:
+ case CAPI_LU_FNAME:
+ hstore = capi_open_store(ctx, NULL);
+ if (!hstore)
+ return NULL;
+ cert = capi_find_cert(ctx, id, hstore);
+ if (cert)
+ {
+ key = capi_get_cert_key(ctx, cert);
+ CertFreeCertificateContext(cert);
+ }
+ CertCloseStore(hstore, 0);
+ break;
+
+ case CAPI_LU_CONTNAME:
+ key = capi_get_key(ctx, id, ctx->cspname, ctx->csptype,
+ ctx->keytype);
+ break;
+ }
+
+ return key;
+ }
+
+void capi_free_key(CAPI_KEY *key)
+ {
+ if (!key)
+ return;
+ CryptDestroyKey(key->key);
+ CryptReleaseContext(key->hprov, 0);
+ if (key->pcert)
+ CertFreeCertificateContext(key->pcert);
+ OPENSSL_free(key);
+ }
+
+
+/* Initialize a CAPI_CTX structure */
+
+static CAPI_CTX *capi_ctx_new()
+ {
+ CAPI_CTX *ctx;
+ ctx = OPENSSL_malloc(sizeof(CAPI_CTX));
+ if (!ctx)
+ {
+ CAPIerr(CAPI_F_CAPI_CTX_NEW, ERR_R_MALLOC_FAILURE);
+ return NULL;
+ }
+ ctx->cspname = NULL;
+ ctx->csptype = PROV_RSA_FULL;
+ ctx->dump_flags = CAPI_DMP_SUMMARY|CAPI_DMP_FNAME;
+ ctx->keytype = AT_KEYEXCHANGE;
+ ctx->storename = NULL;
+ ctx->ssl_client_store = NULL;
+ ctx->store_flags = CERT_STORE_OPEN_EXISTING_FLAG |
+ CERT_STORE_READONLY_FLAG |
+ CERT_SYSTEM_STORE_CURRENT_USER;
+ ctx->lookup_method = CAPI_LU_SUBSTR;
+ ctx->debug_level = 0;
+ ctx->debug_file = NULL;
+ ctx->client_cert_select = cert_select_simple;
+ return ctx;
+ }
+
+static void capi_ctx_free(CAPI_CTX *ctx)
+ {
+ CAPI_trace(ctx, "Calling capi_ctx_free with %lx\n", ctx);
+ if (!ctx)
+ return;
+ if (ctx->cspname)
+ OPENSSL_free(ctx->cspname);
+ if (ctx->debug_file)
+ OPENSSL_free(ctx->debug_file);
+ if (ctx->storename)
+ OPENSSL_free(ctx->storename);
+ if (ctx->ssl_client_store)
+ OPENSSL_free(ctx->ssl_client_store);
+ OPENSSL_free(ctx);
+ }
+
+static int capi_ctx_set_provname(CAPI_CTX *ctx, LPSTR pname, DWORD type, int check)
+ {
+ CAPI_trace(ctx, "capi_ctx_set_provname, name=%s, type=%d\n", pname, type);
+ if (check)
+ {
+ HCRYPTPROV hprov;
+ if (!CryptAcquireContextA(&hprov, NULL, pname, type,
+ CRYPT_VERIFYCONTEXT))
+ {
+ CAPIerr(CAPI_F_CAPI_CTX_SET_PROVNAME, CAPI_R_CRYPTACQUIRECONTEXT_ERROR);
+ capi_addlasterror();
+ return 0;
+ }
+ CryptReleaseContext(hprov, 0);
+ }
+ ctx->cspname = BUF_strdup(pname);
+ ctx->csptype = type;
+ return 1;
+ }
+
+static int capi_ctx_set_provname_idx(CAPI_CTX *ctx, int idx)
+ {
+ LPSTR pname;
+ DWORD type;
+ if (capi_get_provname(ctx, &pname, &type, idx) != 1)
+ return 0;
+ return capi_ctx_set_provname(ctx, pname, type, 0);
+ }
+
+static int cert_issuer_match(STACK_OF(X509_NAME) *ca_dn, X509 *x)
+ {
+ int i;
+ X509_NAME *nm;
+ /* Special case: empty list: match anything */
+ if (sk_X509_NAME_num(ca_dn) <= 0)
+ return 1;
+ for (i = 0; i < sk_X509_NAME_num(ca_dn); i++)
+ {
+ nm = sk_X509_NAME_value(ca_dn, i);
+ if (!X509_NAME_cmp(nm, X509_get_issuer_name(x)))
+ return 1;
+ }
+ return 0;
+ }
+
+
+
+static int capi_load_ssl_client_cert(ENGINE *e, SSL *ssl,
+ STACK_OF(X509_NAME) *ca_dn, X509 **pcert, EVP_PKEY **pkey,
+ STACK_OF(X509) **pother, UI_METHOD *ui_method, void *callback_data)
+ {
+ STACK_OF(X509) *certs = NULL;
+ X509 *x;
+ char *storename;
+ const char *p;
+ int i, client_cert_idx;
+ HCERTSTORE hstore;
+ PCCERT_CONTEXT cert = NULL, excert = NULL;
+ CAPI_CTX *ctx;
+ CAPI_KEY *key;
+ ctx = ENGINE_get_ex_data(e, capi_idx);
+
+ *pcert = NULL;
+ *pkey = NULL;
+
+ storename = ctx->ssl_client_store;
+ if (!storename)
+ storename = "MY";
+
+ hstore = capi_open_store(ctx, storename);
+ if (!hstore)
+ return 0;
+ /* Enumerate all certificates collect any matches */
+ for(i = 0;;i++)
+ {
+ cert = CertEnumCertificatesInStore(hstore, cert);
+ if (!cert)
+ break;
+ p = cert->pbCertEncoded;
+ x = d2i_X509(NULL, &p, cert->cbCertEncoded);
+ if (!x)
+ {
+ CAPI_trace(ctx, "Can't Parse Certificate %d\n", i);
+ continue;
+ }
+ if (cert_issuer_match(ca_dn, x)
+ && X509_check_purpose(x, X509_PURPOSE_SSL_CLIENT, 0))
+ {
+ key = capi_get_cert_key(ctx, cert);
+ if (!key)
+ {
+ X509_free(x);
+ continue;
+ }
+ /* Match found: attach extra data to it so
+ * we can retrieve the key later.
+ */
+ excert = CertDuplicateCertificateContext(cert);
+ key->pcert = excert;
+ X509_set_ex_data(x, cert_capi_idx, key);
+
+ if (!certs)
+ certs = sk_X509_new_null();
+
+ sk_X509_push(certs, x);
+ }
+ else
+ X509_free(x);
+
+ }
+
+ if (cert)
+ CertFreeCertificateContext(cert);
+ if (hstore)
+ CertCloseStore(hstore, 0);
+
+ if (!certs)
+ return 0;
+
+
+ /* Select the appropriate certificate */
+
+ client_cert_idx = ctx->client_cert_select(e, ssl, certs);
+
+ /* Set the selected certificate and free the rest */
+
+ for(i = 0; i < sk_X509_num(certs); i++)
+ {
+ x = sk_X509_value(certs, i);
+ if (i == client_cert_idx)
+ *pcert = x;
+ else
+ {
+ key = X509_get_ex_data(x, cert_capi_idx);
+ capi_free_key(key);
+ X509_free(x);
+ }
+ }
+
+ sk_X509_free(certs);
+
+ if (!*pcert)
+ return 0;
+
+ /* Setup key for selected certificate */
+
+ key = X509_get_ex_data(*pcert, cert_capi_idx);
+ *pkey = capi_get_pkey(e, key);
+ X509_set_ex_data(*pcert, cert_capi_idx, NULL);
+
+ return 1;
+
+ }
+
+
+/* Simple client cert selection function: always select first */
+
+static int cert_select_simple(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
+ {
+ return 0;
+ }
+
+#ifdef OPENSSL_CAPIENG_DIALOG
+
+/* More complex cert selection function, using standard function
+ * CryptUIDlgSelectCertificateFromStore() to produce a dialog box.
+ */
+
+/* Definitions which are in cryptuiapi.h but this is not present in older
+ * versions of headers.
+ */
+
+#ifndef CRYPTUI_SELECT_LOCATION_COLUMN
+#define CRYPTUI_SELECT_LOCATION_COLUMN 0x000000010
+#define CRYPTUI_SELECT_INTENDEDUSE_COLUMN 0x000000004
+#endif
+
+#define dlg_title L"OpenSSL Application SSL Client Certificate Selection"
+#define dlg_prompt L"Select a certificate to use for authentication"
+#define dlg_columns CRYPTUI_SELECT_LOCATION_COLUMN \
+ |CRYPTUI_SELECT_INTENDEDUSE_COLUMN
+
+static int cert_select_dialog(ENGINE *e, SSL *ssl, STACK_OF(X509) *certs)
+ {
+ X509 *x;
+ HCERTSTORE dstore;
+ PCCERT_CONTEXT cert;
+ CAPI_CTX *ctx;
+ CAPI_KEY *key;
+ HWND hwnd;
+ int i, idx = -1;
+ if (sk_X509_num(certs) == 1)
+ return 0;
+ ctx = ENGINE_get_ex_data(e, capi_idx);
+ /* Create an in memory store of certificates */
+ dstore = CertOpenStore(CERT_STORE_PROV_MEMORY, 0, 0,
+ CERT_STORE_CREATE_NEW_FLAG, NULL);
+ if (!dstore)
+ {
+ CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_CREATING_STORE);
+ capi_addlasterror();
+ goto err;
+ }
+ /* Add all certificates to store */
+ for(i = 0; i < sk_X509_num(certs); i++)
+ {
+ x = sk_X509_value(certs, i);
+ key = X509_get_ex_data(x, cert_capi_idx);
+
+ if (!CertAddCertificateContextToStore(dstore, key->pcert,
+ CERT_STORE_ADD_NEW, NULL))
+ {
+ CAPIerr(CAPI_F_CERT_SELECT_DIALOG, CAPI_R_ERROR_ADDING_CERT);
+ capi_addlasterror();
+ goto err;
+ }
+
+ }
+ hwnd = GetForegroundWindow();
+ if (!hwnd)
+ hwnd = GetActiveWindow();
+ if (!hwnd && ctx->getconswindow)
+ hwnd = ctx->getconswindow();
+ /* Call dialog to select one */
+ cert = ctx->certselectdlg(dstore, hwnd, dlg_title, dlg_prompt,
+ dlg_columns, 0, NULL);
+
+ /* Find matching cert from list */
+ if (cert)
+ {
+ for(i = 0; i < sk_X509_num(certs); i++)
+ {
+ x = sk_X509_value(certs, i);
+ key = X509_get_ex_data(x, cert_capi_idx);
+ if (CertCompareCertificate(
+ X509_ASN_ENCODING | PKCS_7_ASN_ENCODING,
+ cert->pCertInfo,
+ key->pcert->pCertInfo))
+ {
+ idx = i;
+ break;
+ }
+ }
+ }
+
+ err:
+ if (dstore)
+ CertCloseStore(dstore, 0);
+ return idx;
+
+ }
+#endif
+
+#else /* !__COMPILE_CAPIENG */
+#include <openssl/engine.h>
+#ifndef OPENSSL_NO_DYNAMIC_ENGINE
+OPENSSL_EXPORT
+int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns);
+OPENSSL_EXPORT
+int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns) { return 0; }
+IMPLEMENT_DYNAMIC_CHECK_FN()
+#else
+void ENGINE_load_capi(void){}
+#endif
+#endif
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