diff options
Diffstat (limited to 'openssl/engines/e_chil.c')
| -rw-r--r-- | openssl/engines/e_chil.c | 2245 |
1 files changed, 1114 insertions, 1131 deletions
diff --git a/openssl/engines/e_chil.c b/openssl/engines/e_chil.c index fdc2100e3..69d49d7d3 100644 --- a/openssl/engines/e_chil.c +++ b/openssl/engines/e_chil.c @@ -1,7 +1,8 @@ /* crypto/engine/e_chil.c -*- mode: C; c-file-style: "eay" -*- */ -/* Written by Richard Levitte (richard@levitte.org), Geoff Thorpe - * (geoff@geoffthorpe.net) and Dr Stephen N Henson (steve@openssl.org) - * for the OpenSSL project 2000. +/* + * Written by Richard Levitte (richard@levitte.org), Geoff Thorpe + * (geoff@geoffthorpe.net) and Dr Stephen N Henson (steve@openssl.org) for + * the OpenSSL project 2000. */ /* ==================================================================== * Copyright (c) 1999-2001 The OpenSSL Project. All rights reserved. @@ -11,7 +12,7 @@ * are met: * * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. + * 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 @@ -66,17 +67,18 @@ #include <openssl/ui.h> #include <openssl/rand.h> #ifndef OPENSSL_NO_RSA -#include <openssl/rsa.h> +# include <openssl/rsa.h> #endif #ifndef OPENSSL_NO_DH -#include <openssl/dh.h> +# include <openssl/dh.h> #endif #include <openssl/bn.h> #ifndef OPENSSL_NO_HW -#ifndef OPENSSL_NO_HW_CHIL +# ifndef OPENSSL_NO_HW_CHIL -/* Attribution notice: nCipher have said several times that it's OK for +/*- + * Attribution notice: nCipher have said several times that it's OK for * us to implement a general interface to their boxes, and recently declared * their HWCryptoHook to be public, and therefore available for us to use. * Thanks, nCipher. @@ -84,46 +86,50 @@ * The hwcryptohook.h included here is from May 2000. * [Richard Levitte] */ -#ifdef FLAT_INC -#include "hwcryptohook.h" -#else -#include "vendor_defns/hwcryptohook.h" -#endif +# ifdef FLAT_INC +# include "hwcryptohook.h" +# else +# include "vendor_defns/hwcryptohook.h" +# endif -#define HWCRHK_LIB_NAME "CHIL engine" -#include "e_chil_err.c" +# define HWCRHK_LIB_NAME "CHIL engine" +# include "e_chil_err.c" static int hwcrhk_destroy(ENGINE *e); static int hwcrhk_init(ENGINE *e); static int hwcrhk_finish(ENGINE *e); -static int hwcrhk_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void)); +static int hwcrhk_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void)); /* Functions to handle mutexes */ -static int hwcrhk_mutex_init(HWCryptoHook_Mutex*, HWCryptoHook_CallerContext*); -static int hwcrhk_mutex_lock(HWCryptoHook_Mutex*); -static void hwcrhk_mutex_unlock(HWCryptoHook_Mutex*); -static void hwcrhk_mutex_destroy(HWCryptoHook_Mutex*); +static int hwcrhk_mutex_init(HWCryptoHook_Mutex *, + HWCryptoHook_CallerContext *); +static int hwcrhk_mutex_lock(HWCryptoHook_Mutex *); +static void hwcrhk_mutex_unlock(HWCryptoHook_Mutex *); +static void hwcrhk_mutex_destroy(HWCryptoHook_Mutex *); /* BIGNUM stuff */ static int hwcrhk_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, - const BIGNUM *m, BN_CTX *ctx); + const BIGNUM *m, BN_CTX *ctx); -#ifndef OPENSSL_NO_RSA +# ifndef OPENSSL_NO_RSA /* RSA stuff */ -static int hwcrhk_rsa_mod_exp(BIGNUM *r, const BIGNUM *I, RSA *rsa, BN_CTX *ctx); +static int hwcrhk_rsa_mod_exp(BIGNUM *r, const BIGNUM *I, RSA *rsa, + BN_CTX *ctx); /* This function is aliased to mod_exp (with the mont stuff dropped). */ static int hwcrhk_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, - const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx); + const BIGNUM *m, BN_CTX *ctx, + BN_MONT_CTX *m_ctx); static int hwcrhk_rsa_finish(RSA *rsa); -#endif +# endif -#ifndef OPENSSL_NO_DH +# ifndef OPENSSL_NO_DH /* DH stuff */ /* This function is alised to mod_exp (with the DH and mont dropped). */ static int hwcrhk_mod_exp_dh(const DH *dh, BIGNUM *r, - const BIGNUM *a, const BIGNUM *p, - const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx); -#endif + const BIGNUM *a, const BIGNUM *p, + const BIGNUM *m, BN_CTX *ctx, + BN_MONT_CTX *m_ctx); +# endif /* RAND stuff */ static int hwcrhk_rand_bytes(unsigned char *buf, int num); @@ -131,1226 +137,1203 @@ static int hwcrhk_rand_status(void); /* KM stuff */ static EVP_PKEY *hwcrhk_load_privkey(ENGINE *eng, const char *key_id, - UI_METHOD *ui_method, void *callback_data); + UI_METHOD *ui_method, + void *callback_data); static EVP_PKEY *hwcrhk_load_pubkey(ENGINE *eng, const char *key_id, - UI_METHOD *ui_method, void *callback_data); + UI_METHOD *ui_method, + void *callback_data); /* Interaction stuff */ static int hwcrhk_insert_card(const char *prompt_info, - const char *wrong_info, - HWCryptoHook_PassphraseContext *ppctx, - HWCryptoHook_CallerContext *cactx); + const char *wrong_info, + HWCryptoHook_PassphraseContext * ppctx, + HWCryptoHook_CallerContext * cactx); static int hwcrhk_get_pass(const char *prompt_info, - int *len_io, char *buf, - HWCryptoHook_PassphraseContext *ppctx, - HWCryptoHook_CallerContext *cactx); + int *len_io, char *buf, + HWCryptoHook_PassphraseContext * ppctx, + HWCryptoHook_CallerContext * cactx); static void hwcrhk_log_message(void *logstr, const char *message); /* The definitions for control commands specific to this engine */ -#define HWCRHK_CMD_SO_PATH ENGINE_CMD_BASE -#define HWCRHK_CMD_FORK_CHECK (ENGINE_CMD_BASE + 1) -#define HWCRHK_CMD_THREAD_LOCKING (ENGINE_CMD_BASE + 2) -#define HWCRHK_CMD_SET_USER_INTERFACE (ENGINE_CMD_BASE + 3) -#define HWCRHK_CMD_SET_CALLBACK_DATA (ENGINE_CMD_BASE + 4) +# define HWCRHK_CMD_SO_PATH ENGINE_CMD_BASE +# define HWCRHK_CMD_FORK_CHECK (ENGINE_CMD_BASE + 1) +# define HWCRHK_CMD_THREAD_LOCKING (ENGINE_CMD_BASE + 2) +# define HWCRHK_CMD_SET_USER_INTERFACE (ENGINE_CMD_BASE + 3) +# define HWCRHK_CMD_SET_CALLBACK_DATA (ENGINE_CMD_BASE + 4) static const ENGINE_CMD_DEFN hwcrhk_cmd_defns[] = { - {HWCRHK_CMD_SO_PATH, - "SO_PATH", - "Specifies the path to the 'hwcrhk' shared library", - ENGINE_CMD_FLAG_STRING}, - {HWCRHK_CMD_FORK_CHECK, - "FORK_CHECK", - "Turns fork() checking on (non-zero) or off (zero)", - ENGINE_CMD_FLAG_NUMERIC}, - {HWCRHK_CMD_THREAD_LOCKING, - "THREAD_LOCKING", - "Turns thread-safe locking on (zero) or off (non-zero)", - ENGINE_CMD_FLAG_NUMERIC}, - {HWCRHK_CMD_SET_USER_INTERFACE, - "SET_USER_INTERFACE", - "Set the global user interface (internal)", - ENGINE_CMD_FLAG_INTERNAL}, - {HWCRHK_CMD_SET_CALLBACK_DATA, - "SET_CALLBACK_DATA", - "Set the global user interface extra data (internal)", - ENGINE_CMD_FLAG_INTERNAL}, - {0, NULL, NULL, 0} - }; + {HWCRHK_CMD_SO_PATH, + "SO_PATH", + "Specifies the path to the 'hwcrhk' shared library", + ENGINE_CMD_FLAG_STRING}, + {HWCRHK_CMD_FORK_CHECK, + "FORK_CHECK", + "Turns fork() checking on (non-zero) or off (zero)", + ENGINE_CMD_FLAG_NUMERIC}, + {HWCRHK_CMD_THREAD_LOCKING, + "THREAD_LOCKING", + "Turns thread-safe locking on (zero) or off (non-zero)", + ENGINE_CMD_FLAG_NUMERIC}, + {HWCRHK_CMD_SET_USER_INTERFACE, + "SET_USER_INTERFACE", + "Set the global user interface (internal)", + ENGINE_CMD_FLAG_INTERNAL}, + {HWCRHK_CMD_SET_CALLBACK_DATA, + "SET_CALLBACK_DATA", + "Set the global user interface extra data (internal)", + ENGINE_CMD_FLAG_INTERNAL}, + {0, NULL, NULL, 0} +}; -#ifndef OPENSSL_NO_RSA +# ifndef OPENSSL_NO_RSA /* Our internal RSA_METHOD that we provide pointers to */ -static RSA_METHOD hwcrhk_rsa = - { - "CHIL RSA method", - NULL, - NULL, - NULL, - NULL, - hwcrhk_rsa_mod_exp, - hwcrhk_mod_exp_mont, - NULL, - hwcrhk_rsa_finish, - 0, - NULL, - NULL, - NULL, - NULL - }; -#endif +static RSA_METHOD hwcrhk_rsa = { + "CHIL RSA method", + NULL, + NULL, + NULL, + NULL, + hwcrhk_rsa_mod_exp, + hwcrhk_mod_exp_mont, + NULL, + hwcrhk_rsa_finish, + 0, + NULL, + NULL, + NULL, + NULL +}; +# endif -#ifndef OPENSSL_NO_DH +# ifndef OPENSSL_NO_DH /* Our internal DH_METHOD that we provide pointers to */ -static DH_METHOD hwcrhk_dh = - { - "CHIL DH method", - NULL, - NULL, - hwcrhk_mod_exp_dh, - NULL, - NULL, - 0, - NULL, - NULL - }; -#endif - -static RAND_METHOD hwcrhk_rand = - { - /* "CHIL RAND method", */ - NULL, - hwcrhk_rand_bytes, - NULL, - NULL, - hwcrhk_rand_bytes, - hwcrhk_rand_status, - }; +static DH_METHOD hwcrhk_dh = { + "CHIL DH method", + NULL, + NULL, + hwcrhk_mod_exp_dh, + NULL, + NULL, + 0, + NULL, + NULL +}; +# endif + +static RAND_METHOD hwcrhk_rand = { + /* "CHIL RAND method", */ + NULL, + hwcrhk_rand_bytes, + NULL, + NULL, + hwcrhk_rand_bytes, + hwcrhk_rand_status, +}; /* Constants used when creating the ENGINE */ static const char *engine_hwcrhk_id = "chil"; static const char *engine_hwcrhk_name = "CHIL hardware engine support"; -#ifndef OPENSSL_NO_DYNAMIC_ENGINE +# ifndef OPENSSL_NO_DYNAMIC_ENGINE /* Compatibility hack, the dynamic library uses this form in the path */ static const char *engine_hwcrhk_id_alt = "ncipher"; -#endif +# endif /* Internal stuff for HWCryptoHook */ /* Some structures needed for proper use of thread locks */ -/* hwcryptohook.h has some typedefs that turn struct HWCryptoHook_MutexValue - into HWCryptoHook_Mutex */ -struct HWCryptoHook_MutexValue - { - int lockid; - }; - -/* hwcryptohook.h has some typedefs that turn - struct HWCryptoHook_PassphraseContextValue - into HWCryptoHook_PassphraseContext */ -struct HWCryptoHook_PassphraseContextValue - { - UI_METHOD *ui_method; - void *callback_data; - }; - -/* hwcryptohook.h has some typedefs that turn - struct HWCryptoHook_CallerContextValue - into HWCryptoHook_CallerContext */ -struct HWCryptoHook_CallerContextValue - { - pem_password_cb *password_callback; /* Deprecated! Only present for - backward compatibility! */ - UI_METHOD *ui_method; - void *callback_data; - }; - -/* The MPI structure in HWCryptoHook is pretty compatible with OpenSSL - BIGNUM's, so lets define a couple of conversion macros */ -#define BN2MPI(mp, bn) \ +/* + * hwcryptohook.h has some typedefs that turn struct HWCryptoHook_MutexValue + * into HWCryptoHook_Mutex + */ +struct HWCryptoHook_MutexValue { + int lockid; +}; + +/* + * hwcryptohook.h has some typedefs that turn struct + * HWCryptoHook_PassphraseContextValue into HWCryptoHook_PassphraseContext + */ +struct HWCryptoHook_PassphraseContextValue { + UI_METHOD *ui_method; + void *callback_data; +}; + +/* + * hwcryptohook.h has some typedefs that turn struct + * HWCryptoHook_CallerContextValue into HWCryptoHook_CallerContext + */ +struct HWCryptoHook_CallerContextValue { + pem_password_cb *password_callback; /* Deprecated! Only present for + * backward compatibility! */ + UI_METHOD *ui_method; + void *callback_data; +}; + +/* + * The MPI structure in HWCryptoHook is pretty compatible with OpenSSL + * BIGNUM's, so lets define a couple of conversion macros + */ +# define BN2MPI(mp, bn) \ {mp.size = bn->top * sizeof(BN_ULONG); mp.buf = (unsigned char *)bn->d;} -#define MPI2BN(bn, mp) \ +# define MPI2BN(bn, mp) \ {mp.size = bn->dmax * sizeof(BN_ULONG); mp.buf = (unsigned char *)bn->d;} static BIO *logstream = NULL; static int disable_mutex_callbacks = 0; -/* One might wonder why these are needed, since one can pass down at least - a UI_METHOD and a pointer to callback data to the key-loading functions. - The thing is that the ModExp and RSAImmed functions can load keys as well, - if the data they get is in a special, nCipher-defined format (hint: if you - look at the private exponent of the RSA data as a string, you'll see this - string: "nCipher KM tool key id", followed by some bytes, followed a key - identity string, followed by more bytes. This happens when you use "embed" - keys instead of "hwcrhk" keys). Unfortunately, those functions do not take - any passphrase or caller context, and our functions can't really take any - callback data either. Still, the "insert_card" and "get_passphrase" - callbacks may be called down the line, and will need to know what user - interface callbacks to call, and having callback data from the application - may be a nice thing as well, so we need to keep track of that globally. */ +/* + * One might wonder why these are needed, since one can pass down at least a + * UI_METHOD and a pointer to callback data to the key-loading functions. The + * thing is that the ModExp and RSAImmed functions can load keys as well, if + * the data they get is in a special, nCipher-defined format (hint: if you + * look at the private exponent of the RSA data as a string, you'll see this + * string: "nCipher KM tool key id", followed by some bytes, followed a key + * identity string, followed by more bytes. This happens when you use + * "embed" keys instead of "hwcrhk" keys). Unfortunately, those functions do + * not take any passphrase or caller context, and our functions can't really + * take any callback data either. Still, the "insert_card" and + * "get_passphrase" callbacks may be called down the line, and will need to + * know what user interface callbacks to call, and having callback data from + * the application may be a nice thing as well, so we need to keep track of + * that globally. + */ static HWCryptoHook_CallerContext password_context = { NULL, NULL, NULL }; /* Stuff to pass to the HWCryptoHook library */ static HWCryptoHook_InitInfo hwcrhk_globals = { - HWCryptoHook_InitFlags_SimpleForkCheck, /* Flags */ - &logstream, /* logstream */ - sizeof(BN_ULONG), /* limbsize */ - 0, /* mslimb first: false for BNs */ - -1, /* msbyte first: use native */ - 0, /* Max mutexes, 0 = no small limit */ - 0, /* Max simultaneous, 0 = default */ - - /* The next few are mutex stuff: we write wrapper functions - around the OS mutex functions. We initialise them to 0 - here, and change that to actual function pointers in hwcrhk_init() - if dynamic locks are supported (that is, if the application - programmer has made sure of setting up callbacks bafore starting - this engine) *and* if disable_mutex_callbacks hasn't been set by - a call to ENGINE_ctrl(ENGINE_CTRL_CHIL_NO_LOCKING). */ - sizeof(HWCryptoHook_Mutex), - 0, - 0, - 0, - 0, - - /* The next few are condvar stuff: we write wrapper functions - round the OS functions. Currently not implemented and not - and absolute necessity even in threaded programs, therefore - 0'ed. Will hopefully be implemented some day, since it - enhances the efficiency of HWCryptoHook. */ - 0, /* sizeof(HWCryptoHook_CondVar), */ - 0, /* hwcrhk_cv_init, */ - 0, /* hwcrhk_cv_wait, */ - 0, /* hwcrhk_cv_signal, */ - 0, /* hwcrhk_cv_broadcast, */ - 0, /* hwcrhk_cv_destroy, */ - - hwcrhk_get_pass, /* pass phrase */ - hwcrhk_insert_card, /* insert a card */ - hwcrhk_log_message /* Log message */ + HWCryptoHook_InitFlags_SimpleForkCheck, /* Flags */ + &logstream, /* logstream */ + sizeof(BN_ULONG), /* limbsize */ + 0, /* mslimb first: false for BNs */ + -1, /* msbyte first: use native */ + 0, /* Max mutexes, 0 = no small limit */ + 0, /* Max simultaneous, 0 = default */ + + /* + * The next few are mutex stuff: we write wrapper functions around the OS + * mutex functions. We initialise them to 0 here, and change that to + * actual function pointers in hwcrhk_init() if dynamic locks are + * supported (that is, if the application programmer has made sure of + * setting up callbacks bafore starting this engine) *and* if + * disable_mutex_callbacks hasn't been set by a call to + * ENGINE_ctrl(ENGINE_CTRL_CHIL_NO_LOCKING). + */ + sizeof(HWCryptoHook_Mutex), + 0, + 0, + 0, + 0, + + /* + * The next few are condvar stuff: we write wrapper functions round the + * OS functions. Currently not implemented and not and absolute + * necessity even in threaded programs, therefore 0'ed. Will hopefully + * be implemented some day, since it enhances the efficiency of + * HWCryptoHook. + */ + 0, /* sizeof(HWCryptoHook_CondVar), */ + 0, /* hwcrhk_cv_init, */ + 0, /* hwcrhk_cv_wait, */ + 0, /* hwcrhk_cv_signal, */ + 0, /* hwcrhk_cv_broadcast, */ + 0, /* hwcrhk_cv_destroy, */ + + hwcrhk_get_pass, /* pass phrase */ + hwcrhk_insert_card, /* insert a card */ + hwcrhk_log_message /* Log message */ }; - /* Now, to our own code */ -/* This internal function is used by ENGINE_chil() and possibly by the - * "dynamic" ENGINE support too */ +/* + * This internal function is used by ENGINE_chil() and possibly by the + * "dynamic" ENGINE support too + */ static int bind_helper(ENGINE *e) - { -#ifndef OPENSSL_NO_RSA - const RSA_METHOD *meth1; -#endif -#ifndef OPENSSL_NO_DH - const DH_METHOD *meth2; -#endif - if(!ENGINE_set_id(e, engine_hwcrhk_id) || - !ENGINE_set_name(e, engine_hwcrhk_name) || -#ifndef OPENSSL_NO_RSA - !ENGINE_set_RSA(e, &hwcrhk_rsa) || -#endif -#ifndef OPENSSL_NO_DH - !ENGINE_set_DH(e, &hwcrhk_dh) || -#endif - !ENGINE_set_RAND(e, &hwcrhk_rand) || - !ENGINE_set_destroy_function(e, hwcrhk_destroy) || - !ENGINE_set_init_function(e, hwcrhk_init) || - !ENGINE_set_finish_function(e, hwcrhk_finish) || - !ENGINE_set_ctrl_function(e, hwcrhk_ctrl) || - !ENGINE_set_load_privkey_function(e, hwcrhk_load_privkey) || - !ENGINE_set_load_pubkey_function(e, hwcrhk_load_pubkey) || - !ENGINE_set_cmd_defns(e, hwcrhk_cmd_defns)) - return 0; - -#ifndef OPENSSL_NO_RSA - /* We know that the "PKCS1_SSLeay()" functions hook properly - * to the cswift-specific mod_exp and mod_exp_crt so we use - * those functions. NB: We don't use ENGINE_openssl() or - * anything "more generic" because something like the RSAref - * code may not hook properly, and if you own one of these - * cards then you have the right to do RSA operations on it - * anyway! */ - meth1 = RSA_PKCS1_SSLeay(); - hwcrhk_rsa.rsa_pub_enc = meth1->rsa_pub_enc; - hwcrhk_rsa.rsa_pub_dec = meth1->rsa_pub_dec; - hwcrhk_rsa.rsa_priv_enc = meth1->rsa_priv_enc; - hwcrhk_rsa.rsa_priv_dec = meth1->rsa_priv_dec; -#endif - -#ifndef OPENSSL_NO_DH - /* Much the same for Diffie-Hellman */ - meth2 = DH_OpenSSL(); - hwcrhk_dh.generate_key = meth2->generate_key; - hwcrhk_dh.compute_key = meth2->compute_key; -#endif - - /* Ensure the hwcrhk error handling is set up */ - ERR_load_HWCRHK_strings(); - return 1; - } - -#ifdef OPENSSL_NO_DYNAMIC_ENGINE +{ +# ifndef OPENSSL_NO_RSA + const RSA_METHOD *meth1; +# endif +# ifndef OPENSSL_NO_DH + const DH_METHOD *meth2; +# endif + if (!ENGINE_set_id(e, engine_hwcrhk_id) || + !ENGINE_set_name(e, engine_hwcrhk_name) || +# ifndef OPENSSL_NO_RSA + !ENGINE_set_RSA(e, &hwcrhk_rsa) || +# endif +# ifndef OPENSSL_NO_DH + !ENGINE_set_DH(e, &hwcrhk_dh) || +# endif + !ENGINE_set_RAND(e, &hwcrhk_rand) || + !ENGINE_set_destroy_function(e, hwcrhk_destroy) || + !ENGINE_set_init_function(e, hwcrhk_init) || + !ENGINE_set_finish_function(e, hwcrhk_finish) || + !ENGINE_set_ctrl_function(e, hwcrhk_ctrl) || + !ENGINE_set_load_privkey_function(e, hwcrhk_load_privkey) || + !ENGINE_set_load_pubkey_function(e, hwcrhk_load_pubkey) || + !ENGINE_set_cmd_defns(e, hwcrhk_cmd_defns)) + return 0; + +# ifndef OPENSSL_NO_RSA + /* + * We know that the "PKCS1_SSLeay()" functions hook properly to the + * cswift-specific mod_exp and mod_exp_crt so we use those functions. NB: + * We don't use ENGINE_openssl() or anything "more generic" because + * something like the RSAref code may not hook properly, and if you own + * one of these cards then you have the right to do RSA operations on it + * anyway! + */ + meth1 = RSA_PKCS1_SSLeay(); + hwcrhk_rsa.rsa_pub_enc = meth1->rsa_pub_enc; + hwcrhk_rsa.rsa_pub_dec = meth1->rsa_pub_dec; + hwcrhk_rsa.rsa_priv_enc = meth1->rsa_priv_enc; + hwcrhk_rsa.rsa_priv_dec = meth1->rsa_priv_dec; +# endif + +# ifndef OPENSSL_NO_DH + /* Much the same for Diffie-Hellman */ + meth2 = DH_OpenSSL(); + hwcrhk_dh.generate_key = meth2->generate_key; + hwcrhk_dh.compute_key = meth2->compute_key; +# endif + + /* Ensure the hwcrhk error handling is set up */ + ERR_load_HWCRHK_strings(); + return 1; +} + +# ifdef OPENSSL_NO_DYNAMIC_ENGINE static ENGINE *engine_chil(void) - { - ENGINE *ret = ENGINE_new(); - if(!ret) - return NULL; - if(!bind_helper(ret)) - { - ENGINE_free(ret); - return NULL; - } - return ret; - } +{ + ENGINE *ret = ENGINE_new(); + if (!ret) + return NULL; + if (!bind_helper(ret)) { + ENGINE_free(ret); + return NULL; + } + return ret; +} void ENGINE_load_chil(void) - { - /* Copied from eng_[openssl|dyn].c */ - ENGINE *toadd = engine_chil(); - if(!toadd) return; - ENGINE_add(toadd); - ENGINE_free(toadd); - ERR_clear_error(); - } -#endif - -/* This is a process-global DSO handle used for loading and unloading - * the HWCryptoHook library. NB: This is only set (or unset) during an - * init() or finish() call (reference counts permitting) and they're - * operating with global locks, so this should be thread-safe - * implicitly. */ +{ + /* Copied from eng_[openssl|dyn].c */ + ENGINE *toadd = engine_chil(); + if (!toadd) + return; + ENGINE_add(toadd); + ENGINE_free(toadd); + ERR_clear_error(); +} +# endif + +/* + * This is a process-global DSO handle used for loading and unloading the + * HWCryptoHook library. NB: This is only set (or unset) during an init() or + * finish() call (reference counts permitting) and they're operating with + * global locks, so this should be thread-safe implicitly. + */ static DSO *hwcrhk_dso = NULL; static HWCryptoHook_ContextHandle hwcrhk_context = 0; -#ifndef OPENSSL_NO_RSA -static int hndidx_rsa = -1; /* Index for KM handle. Not really used yet. */ -#endif - -/* These are the function pointers that are (un)set when the library has - * successfully (un)loaded. */ +# ifndef OPENSSL_NO_RSA +/* Index for KM handle. Not really used yet. */ +static int hndidx_rsa = -1; +# endif + +/* + * These are the function pointers that are (un)set when the library has + * successfully (un)loaded. + */ static HWCryptoHook_Init_t *p_hwcrhk_Init = NULL; static HWCryptoHook_Finish_t *p_hwcrhk_Finish = NULL; static HWCryptoHook_ModExp_t *p_hwcrhk_ModExp = NULL; -#ifndef OPENSSL_NO_RSA +# ifndef OPENSSL_NO_RSA static HWCryptoHook_RSA_t *p_hwcrhk_RSA = NULL; -#endif +# endif static HWCryptoHook_RandomBytes_t *p_hwcrhk_RandomBytes = NULL; -#ifndef OPENSSL_NO_RSA +# ifndef OPENSSL_NO_RSA static HWCryptoHook_RSALoadKey_t *p_hwcrhk_RSALoadKey = NULL; static HWCryptoHook_RSAGetPublicKey_t *p_hwcrhk_RSAGetPublicKey = NULL; static HWCryptoHook_RSAUnloadKey_t *p_hwcrhk_RSAUnloadKey = NULL; -#endif +# endif static HWCryptoHook_ModExpCRT_t *p_hwcrhk_ModExpCRT = NULL; /* Used in the DSO operations. */ static const char *HWCRHK_LIBNAME = NULL; static void free_HWCRHK_LIBNAME(void) - { - if(HWCRHK_LIBNAME) - OPENSSL_free((void*)HWCRHK_LIBNAME); - HWCRHK_LIBNAME = NULL; - } +{ + if (HWCRHK_LIBNAME) + OPENSSL_free((void *)HWCRHK_LIBNAME); + HWCRHK_LIBNAME = NULL; +} + static const char *get_HWCRHK_LIBNAME(void) - { - if(HWCRHK_LIBNAME) - return HWCRHK_LIBNAME; - return "nfhwcrhk"; - } +{ + if (HWCRHK_LIBNAME) + return HWCRHK_LIBNAME; + return "nfhwcrhk"; +} + static long set_HWCRHK_LIBNAME(const char *name) - { - free_HWCRHK_LIBNAME(); - return (((HWCRHK_LIBNAME = BUF_strdup(name)) != NULL) ? 1 : 0); - } +{ + free_HWCRHK_LIBNAME(); + return (((HWCRHK_LIBNAME = BUF_strdup(name)) != NULL) ? 1 : 0); +} + static const char *n_hwcrhk_Init = "HWCryptoHook_Init"; static const char *n_hwcrhk_Finish = "HWCryptoHook_Finish"; static const char *n_hwcrhk_ModExp = "HWCryptoHook_ModExp"; -#ifndef OPENSSL_NO_RSA +# ifndef OPENSSL_NO_RSA static const char *n_hwcrhk_RSA = "HWCryptoHook_RSA"; -#endif +# endif static const char *n_hwcrhk_RandomBytes = "HWCryptoHook_RandomBytes"; -#ifndef OPENSSL_NO_RSA +# ifndef OPENSSL_NO_RSA static const char *n_hwcrhk_RSALoadKey = "HWCryptoHook_RSALoadKey"; static const char *n_hwcrhk_RSAGetPublicKey = "HWCryptoHook_RSAGetPublicKey"; static const char *n_hwcrhk_RSAUnloadKey = "HWCryptoHook_RSAUnloadKey"; -#endif +# endif static const char *n_hwcrhk_ModExpCRT = "HWCryptoHook_ModExpCRT"; -/* HWCryptoHook library functions and mechanics - these are used by the - * higher-level functions further down. NB: As and where there's no - * error checking, take a look lower down where these functions are - * called, the checking and error handling is probably down there. */ +/* + * HWCryptoHook library functions and mechanics - these are used by the + * higher-level functions further down. NB: As and where there's no error + * checking, take a look lower down where these functions are called, the + * checking and error handling is probably down there. + */ /* utility function to obtain a context */ -static int get_context(HWCryptoHook_ContextHandle *hac, - HWCryptoHook_CallerContext *cac) - { - char tempbuf[1024]; - HWCryptoHook_ErrMsgBuf rmsg; - - rmsg.buf = tempbuf; - rmsg.size = sizeof(tempbuf); - - *hac = p_hwcrhk_Init(&hwcrhk_globals, sizeof(hwcrhk_globals), &rmsg, - cac); - if (!*hac) - return 0; - return 1; - } - +static int get_context(HWCryptoHook_ContextHandle * hac, + HWCryptoHook_CallerContext * cac) +{ + char tempbuf[1024]; + HWCryptoHook_ErrMsgBuf rmsg; + + rmsg.buf = tempbuf; + rmsg.size = sizeof(tempbuf); + + *hac = p_hwcrhk_Init(&hwcrhk_globals, sizeof(hwcrhk_globals), &rmsg, cac); + if (!*hac) + return 0; + return 1; +} + /* similarly to release one. */ static void release_context(HWCryptoHook_ContextHandle hac) - { - p_hwcrhk_Finish(hac); - } +{ + p_hwcrhk_Finish(hac); +} /* Destructor (complements the "ENGINE_chil()" constructor) */ static int hwcrhk_destroy(ENGINE *e) - { - free_HWCRHK_LIBNAME(); - ERR_unload_HWCRHK_strings(); - return 1; - } +{ + free_HWCRHK_LIBNAME(); + ERR_unload_HWCRHK_strings(); + return 1; +} /* (de)initialisation functions. */ static int hwcrhk_init(ENGINE *e) - { - HWCryptoHook_Init_t *p1; - HWCryptoHook_Finish_t *p2; - HWCryptoHook_ModExp_t *p3; -#ifndef OPENSSL_NO_RSA - HWCryptoHook_RSA_t *p4; - HWCryptoHook_RSALoadKey_t *p5; - HWCryptoHook_RSAGetPublicKey_t *p6; - HWCryptoHook_RSAUnloadKey_t *p7; -#endif - HWCryptoHook_RandomBytes_t *p8; - HWCryptoHook_ModExpCRT_t *p9; - - if(hwcrhk_dso != NULL) - { - HWCRHKerr(HWCRHK_F_HWCRHK_INIT,HWCRHK_R_ALREADY_LOADED); - goto err; - } - /* Attempt to load libnfhwcrhk.so/nfhwcrhk.dll/whatever. */ - hwcrhk_dso = DSO_load(NULL, get_HWCRHK_LIBNAME(), NULL, 0); - if(hwcrhk_dso == NULL) - { - HWCRHKerr(HWCRHK_F_HWCRHK_INIT,HWCRHK_R_DSO_FAILURE); - goto err; - } - if(!(p1 = (HWCryptoHook_Init_t *) - DSO_bind_func(hwcrhk_dso, n_hwcrhk_Init)) || - !(p2 = (HWCryptoHook_Finish_t *) - DSO_bind_func(hwcrhk_dso, n_hwcrhk_Finish)) || - !(p3 = (HWCryptoHook_ModExp_t *) - DSO_bind_func(hwcrhk_dso, n_hwcrhk_ModExp)) || -#ifndef OPENSSL_NO_RSA - !(p4 = (HWCryptoHook_RSA_t *) - DSO_bind_func(hwcrhk_dso, n_hwcrhk_RSA)) || - !(p5 = (HWCryptoHook_RSALoadKey_t *) - DSO_bind_func(hwcrhk_dso, n_hwcrhk_RSALoadKey)) || - !(p6 = (HWCryptoHook_RSAGetPublicKey_t *) - DSO_bind_func(hwcrhk_dso, n_hwcrhk_RSAGetPublicKey)) || - !(p7 = (HWCryptoHook_RSAUnloadKey_t *) - DSO_bind_func(hwcrhk_dso, n_hwcrhk_RSAUnloadKey)) || -#endif - !(p8 = (HWCryptoHook_RandomBytes_t *) - DSO_bind_func(hwcrhk_dso, n_hwcrhk_RandomBytes)) || - !(p9 = (HWCryptoHook_ModExpCRT_t *) - DSO_bind_func(hwcrhk_dso, n_hwcrhk_ModExpCRT))) - { - HWCRHKerr(HWCRHK_F_HWCRHK_INIT,HWCRHK_R_DSO_FAILURE); - goto err; - } - /* Copy the pointers */ - p_hwcrhk_Init = p1; - p_hwcrhk_Finish = p2; - p_hwcrhk_ModExp = p3; -#ifndef OPENSSL_NO_RSA - p_hwcrhk_RSA = p4; - p_hwcrhk_RSALoadKey = p5; - p_hwcrhk_RSAGetPublicKey = p6; - p_hwcrhk_RSAUnloadKey = p7; -#endif - p_hwcrhk_RandomBytes = p8; - p_hwcrhk_ModExpCRT = p9; - - /* Check if the application decided to support dynamic locks, - and if it does, use them. */ - if (disable_mutex_callbacks == 0) - { - if (CRYPTO_get_dynlock_create_callback() != NULL && - CRYPTO_get_dynlock_lock_callback() != NULL && - CRYPTO_get_dynlock_destroy_callback() != NULL) - { - hwcrhk_globals.mutex_init = hwcrhk_mutex_init; - hwcrhk_globals.mutex_acquire = hwcrhk_mutex_lock; - hwcrhk_globals.mutex_release = hwcrhk_mutex_unlock; - hwcrhk_globals.mutex_destroy = hwcrhk_mutex_destroy; - } - } - - /* Try and get a context - if not, we may have a DSO but no - * accelerator! */ - if(!get_context(&hwcrhk_context, &password_context)) - { - HWCRHKerr(HWCRHK_F_HWCRHK_INIT,HWCRHK_R_UNIT_FAILURE); - goto err; - } - /* Everything's fine. */ -#ifndef OPENSSL_NO_RSA - if (hndidx_rsa == -1) - hndidx_rsa = RSA_get_ex_new_index(0, - "nFast HWCryptoHook RSA key handle", - NULL, NULL, NULL); -#endif - return 1; -err: - if(hwcrhk_dso) - DSO_free(hwcrhk_dso); - hwcrhk_dso = NULL; - p_hwcrhk_Init = NULL; - p_hwcrhk_Finish = NULL; - p_hwcrhk_ModExp = NULL; -#ifndef OPENSSL_NO_RSA - p_hwcrhk_RSA = NULL; - p_hwcrhk_RSALoadKey = NULL; - p_hwcrhk_RSAGetPublicKey = NULL; - p_hwcrhk_RSAUnloadKey = NULL; -#endif - p_hwcrhk_ModExpCRT = NULL; - p_hwcrhk_RandomBytes = NULL; - return 0; - } +{ + HWCryptoHook_Init_t *p1; + HWCryptoHook_Finish_t *p2; + HWCryptoHook_ModExp_t *p3; +# ifndef OPENSSL_NO_RSA + HWCryptoHook_RSA_t *p4; + HWCryptoHook_RSALoadKey_t *p5; + HWCryptoHook_RSAGetPublicKey_t *p6; + HWCryptoHook_RSAUnloadKey_t *p7; +# endif + HWCryptoHook_RandomBytes_t *p8; + HWCryptoHook_ModExpCRT_t *p9; + + if (hwcrhk_dso != NULL) { + HWCRHKerr(HWCRHK_F_HWCRHK_INIT, HWCRHK_R_ALREADY_LOADED); + goto err; + } + /* Attempt to load libnfhwcrhk.so/nfhwcrhk.dll/whatever. */ + hwcrhk_dso = DSO_load(NULL, get_HWCRHK_LIBNAME(), NULL, 0); + if (hwcrhk_dso == NULL) { + HWCRHKerr(HWCRHK_F_HWCRHK_INIT, HWCRHK_R_DSO_FAILURE); + goto err; + } + if (!(p1 = (HWCryptoHook_Init_t *) + DSO_bind_func(hwcrhk_dso, n_hwcrhk_Init)) || + !(p2 = (HWCryptoHook_Finish_t *) + DSO_bind_func(hwcrhk_dso, n_hwcrhk_Finish)) || + !(p3 = (HWCryptoHook_ModExp_t *) + DSO_bind_func(hwcrhk_dso, n_hwcrhk_ModExp)) || +# ifndef OPENSSL_NO_RSA + !(p4 = (HWCryptoHook_RSA_t *) + DSO_bind_func(hwcrhk_dso, n_hwcrhk_RSA)) || + !(p5 = (HWCryptoHook_RSALoadKey_t *) + DSO_bind_func(hwcrhk_dso, n_hwcrhk_RSALoadKey)) || + !(p6 = (HWCryptoHook_RSAGetPublicKey_t *) + DSO_bind_func(hwcrhk_dso, n_hwcrhk_RSAGetPublicKey)) || + !(p7 = (HWCryptoHook_RSAUnloadKey_t *) + DSO_bind_func(hwcrhk_dso, n_hwcrhk_RSAUnloadKey)) || +# endif + !(p8 = (HWCryptoHook_RandomBytes_t *) + DSO_bind_func(hwcrhk_dso, n_hwcrhk_RandomBytes)) || + !(p9 = (HWCryptoHook_ModExpCRT_t *) + DSO_bind_func(hwcrhk_dso, n_hwcrhk_ModExpCRT))) { + HWCRHKerr(HWCRHK_F_HWCRHK_INIT, HWCRHK_R_DSO_FAILURE); + goto err; + } + /* Copy the pointers */ + p_hwcrhk_Init = p1; + p_hwcrhk_Finish = p2; + p_hwcrhk_ModExp = p3; +# ifndef OPENSSL_NO_RSA + p_hwcrhk_RSA = p4; + p_hwcrhk_RSALoadKey = p5; + p_hwcrhk_RSAGetPublicKey = p6; + p_hwcrhk_RSAUnloadKey = p7; +# endif + p_hwcrhk_RandomBytes = p8; + p_hwcrhk_ModExpCRT = p9; + + /* + * Check if the application decided to support dynamic locks, and if it + * does, use them. + */ + if (disable_mutex_callbacks == 0) { + if (CRYPTO_get_dynlock_create_callback() != NULL && + CRYPTO_get_dynlock_lock_callback() != NULL && + CRYPTO_get_dynlock_destroy_callback() != NULL) { + hwcrhk_globals.mutex_init = hwcrhk_mutex_init; + hwcrhk_globals.mutex_acquire = hwcrhk_mutex_lock; + hwcrhk_globals.mutex_release = hwcrhk_mutex_unlock; + hwcrhk_globals.mutex_destroy = hwcrhk_mutex_destroy; + } + } + + /* + * Try and get a context - if not, we may have a DSO but no accelerator! + */ + if (!get_context(&hwcrhk_context, &password_context)) { + HWCRHKerr(HWCRHK_F_HWCRHK_INIT, HWCRHK_R_UNIT_FAILURE); + goto err; + } + /* Everything's fine. */ +# ifndef OPENSSL_NO_RSA + if (hndidx_rsa == -1) + hndidx_rsa = RSA_get_ex_new_index(0, + "nFast HWCryptoHook RSA key handle", + NULL, NULL, NULL); +# endif + return 1; + err: + if (hwcrhk_dso) + DSO_free(hwcrhk_dso); + hwcrhk_dso = NULL; + p_hwcrhk_Init = NULL; + p_hwcrhk_Finish = NULL; + p_hwcrhk_ModExp = NULL; +# ifndef OPENSSL_NO_RSA + p_hwcrhk_RSA = NULL; + p_hwcrhk_RSALoadKey = NULL; + p_hwcrhk_RSAGetPublicKey = NULL; + p_hwcrhk_RSAUnloadKey = NULL; +# endif + p_hwcrhk_ModExpCRT = NULL; + p_hwcrhk_RandomBytes = NULL; + return 0; +} static int hwcrhk_finish(ENGINE *e) - { - int to_return = 1; - free_HWCRHK_LIBNAME(); - if(hwcrhk_dso == NULL) - { - HWCRHKerr(HWCRHK_F_HWCRHK_FINISH,HWCRHK_R_NOT_LOADED); - to_return = 0; - goto err; - } - release_context(hwcrhk_context); - if(!DSO_free(hwcrhk_dso)) - { - HWCRHKerr(HWCRHK_F_HWCRHK_FINISH,HWCRHK_R_DSO_FAILURE); - to_return = 0; - goto err; - } +{ + int to_return = 1; + free_HWCRHK_LIBNAME(); + if (hwcrhk_dso == NULL) { + HWCRHKerr(HWCRHK_F_HWCRHK_FINISH, HWCRHK_R_NOT_LOADED); + to_return = 0; + goto err; + } + release_context(hwcrhk_context); + if (!DSO_free(hwcrhk_dso)) { + HWCRHKerr(HWCRHK_F_HWCRHK_FINISH, HWCRHK_R_DSO_FAILURE); + to_return = 0; + goto err; + } err: - if (logstream) - BIO_free(logstream); - hwcrhk_dso = NULL; - p_hwcrhk_Init = NULL; - p_hwcrhk_Finish = NULL; - p_hwcrhk_ModExp = NULL; -#ifndef OPENSSL_NO_RSA - p_hwcrhk_RSA = NULL; - p_hwcrhk_RSALoadKey = NULL; - p_hwcrhk_RSAGetPublicKey = NULL; - p_hwcrhk_RSAUnloadKey = NULL; -#endif - p_hwcrhk_ModExpCRT = NULL; - p_hwcrhk_RandomBytes = NULL; - return to_return; - } - -static int hwcrhk_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void)) - { - int to_return = 1; - - switch(cmd) - { - case HWCRHK_CMD_SO_PATH: - if(hwcrhk_dso) - { - HWCRHKerr(HWCRHK_F_HWCRHK_CTRL,HWCRHK_R_ALREADY_LOADED); - return 0; - } - if(p == NULL) - { - HWCRHKerr(HWCRHK_F_HWCRHK_CTRL,ERR_R_PASSED_NULL_PARAMETER); - return 0; - } - return set_HWCRHK_LIBNAME((const char *)p); - case ENGINE_CTRL_SET_LOGSTREAM: - { - BIO *bio = (BIO *)p; - - CRYPTO_w_lock(CRYPTO_LOCK_ENGINE); - if (logstream) - { - BIO_free(logstream); - logstream = NULL; - } - if (CRYPTO_add(&bio->references,1,CRYPTO_LOCK_BIO) > 1) - logstream = bio; - else - HWCRHKerr(HWCRHK_F_HWCRHK_CTRL,HWCRHK_R_BIO_WAS_FREED); - } - CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); - break; - case ENGINE_CTRL_SET_PASSWORD_CALLBACK: - CRYPTO_w_lock(CRYPTO_LOCK_ENGINE); - password_context.password_callback = (pem_password_cb *)f; - CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); - break; - case ENGINE_CTRL_SET_USER_INTERFACE: - case HWCRHK_CMD_SET_USER_INTERFACE: - CRYPTO_w_lock(CRYPTO_LOCK_ENGINE); - password_context.ui_method = (UI_METHOD *)p; - CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); - break; - case ENGINE_CTRL_SET_CALLBACK_DATA: - case HWCRHK_CMD_SET_CALLBACK_DATA: - CRYPTO_w_lock(CRYPTO_LOCK_ENGINE); - password_context.callback_data = p; - CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); - break; - /* this enables or disables the "SimpleForkCheck" flag used in the - * initialisation structure. */ - case ENGINE_CTRL_CHIL_SET_FORKCHECK: - case HWCRHK_CMD_FORK_CHECK: - CRYPTO_w_lock(CRYPTO_LOCK_ENGINE); - if(i) - hwcrhk_globals.flags |= - HWCryptoHook_InitFlags_SimpleForkCheck; - else - hwcrhk_globals.flags &= - ~HWCryptoHook_InitFlags_SimpleForkCheck; - CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); - break; - /* This will prevent the initialisation function from "installing" - * the mutex-handling callbacks, even if they are available from - * within the library (or were provided to the library from the - * calling application). This is to remove any baggage for - * applications not using multithreading. */ - case ENGINE_CTRL_CHIL_NO_LOCKING: - CRYPTO_w_lock(CRYPTO_LOCK_ENGINE); - disable_mutex_callbacks = 1; - CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); - break; - case HWCRHK_CMD_THREAD_LOCKING: - CRYPTO_w_lock(CRYPTO_LOCK_ENGINE); - disable_mutex_callbacks = ((i == 0) ? 0 : 1); - CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); - break; - - /* The command isn't understood by this engine */ - default: - HWCRHKerr(HWCRHK_F_HWCRHK_CTRL, - HWCRHK_R_CTRL_COMMAND_NOT_IMPLEMENTED); - to_return = 0; - break; - } - - return to_return; - } + if (logstream) + BIO_free(logstream); + hwcrhk_dso = NULL; + p_hwcrhk_Init = NULL; + p_hwcrhk_Finish = NULL; + p_hwcrhk_ModExp = NULL; +# ifndef OPENSSL_NO_RSA + p_hwcrhk_RSA = NULL; + p_hwcrhk_RSALoadKey = NULL; + p_hwcrhk_RSAGetPublicKey = NULL; + p_hwcrhk_RSAUnloadKey = NULL; +# endif + p_hwcrhk_ModExpCRT = NULL; + p_hwcrhk_RandomBytes = NULL; + return to_return; +} + +static int hwcrhk_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f) (void)) +{ + int to_return = 1; + + switch (cmd) { + case HWCRHK_CMD_SO_PATH: + if (hwcrhk_dso) { + HWCRHKerr(HWCRHK_F_HWCRHK_CTRL, HWCRHK_R_ALREADY_LOADED); + return 0; + } + if (p == NULL) { + HWCRHKerr(HWCRHK_F_HWCRHK_CTRL, ERR_R_PASSED_NULL_PARAMETER); + return 0; + } + return set_HWCRHK_LIBNAME((const char *)p); + case ENGINE_CTRL_SET_LOGSTREAM: + { + BIO *bio = (BIO *)p; + + CRYPTO_w_lock(CRYPTO_LOCK_ENGINE); + if (logstream) { + BIO_free(logstream); + logstream = NULL; + } + if (CRYPTO_add(&bio->references, 1, CRYPTO_LOCK_BIO) > 1) + logstream = bio; + else + HWCRHKerr(HWCRHK_F_HWCRHK_CTRL, HWCRHK_R_BIO_WAS_FREED); + } + CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); + break; + case ENGINE_CTRL_SET_PASSWORD_CALLBACK: + CRYPTO_w_lock(CRYPTO_LOCK_ENGINE); + password_context.password_callback = (pem_password_cb *)f; + CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); + break; + case ENGINE_CTRL_SET_USER_INTERFACE: + case HWCRHK_CMD_SET_USER_INTERFACE: + CRYPTO_w_lock(CRYPTO_LOCK_ENGINE); + password_context.ui_method = (UI_METHOD *)p; + CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); + break; + case ENGINE_CTRL_SET_CALLBACK_DATA: + case HWCRHK_CMD_SET_CALLBACK_DATA: + CRYPTO_w_lock(CRYPTO_LOCK_ENGINE); + password_context.callback_data = p; + CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); + break; + /* + * this enables or disables the "SimpleForkCheck" flag used in the + * initialisation structure. + */ + case ENGINE_CTRL_CHIL_SET_FORKCHECK: + case HWCRHK_CMD_FORK_CHECK: + CRYPTO_w_lock(CRYPTO_LOCK_ENGINE); + if (i) + hwcrhk_globals.flags |= HWCryptoHook_InitFlags_SimpleForkCheck; + else + hwcrhk_globals.flags &= ~HWCryptoHook_InitFlags_SimpleForkCheck; + CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); + break; + /* + * This will prevent the initialisation function from "installing" + * the mutex-handling callbacks, even if they are available from + * within the library (or were provided to the library from the + * calling application). This is to remove any baggage for + * applications not using multithreading. + */ + case ENGINE_CTRL_CHIL_NO_LOCKING: + CRYPTO_w_lock(CRYPTO_LOCK_ENGINE); + disable_mutex_callbacks = 1; + CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); + break; + case HWCRHK_CMD_THREAD_LOCKING: + CRYPTO_w_lock(CRYPTO_LOCK_ENGINE); + disable_mutex_callbacks = ((i == 0) ? 0 : 1); + CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE); + break; + + /* The command isn't understood by this engine */ + default: + HWCRHKerr(HWCRHK_F_HWCRHK_CTRL, + HWCRHK_R_CTRL_COMMAND_NOT_IMPLEMENTED); + to_return = 0; + break; + } + + return to_return; +} static EVP_PKEY *hwcrhk_load_privkey(ENGINE *eng, const char *key_id, - UI_METHOD *ui_method, void *callback_data) - { -#ifndef OPENSSL_NO_RSA - RSA *rtmp = NULL; -#endif - EVP_PKEY *res = NULL; -#ifndef OPENSSL_NO_RSA - HWCryptoHook_MPI e, n; - HWCryptoHook_RSAKeyHandle *hptr; -#endif -#if !defined(OPENSSL_NO_RSA) - char tempbuf[1024]; - HWCryptoHook_ErrMsgBuf rmsg; - HWCryptoHook_PassphraseContext ppctx; -#endif - -#if !defined(OPENSSL_NO_RSA) - rmsg.buf = tempbuf; - rmsg.size = sizeof(tempbuf); -#endif - - if(!hwcrhk_context) - { - HWCRHKerr(HWCRHK_F_HWCRHK_LOAD_PRIVKEY, - HWCRHK_R_NOT_INITIALISED); - goto err; - } -#ifndef OPENSSL_NO_RSA - hptr = OPENSSL_malloc(sizeof(HWCryptoHook_RSAKeyHandle)); - if (!hptr) - { - HWCRHKerr(HWCRHK_F_HWCRHK_LOAD_PRIVKEY, - ERR_R_MALLOC_FAILURE); - goto err; - } - ppctx.ui_method = ui_method; - ppctx.callback_data = callback_data; - if (p_hwcrhk_RSALoadKey(hwcrhk_context, key_id, hptr, - &rmsg, &ppctx)) - { - HWCRHKerr(HWCRHK_F_HWCRHK_LOAD_PRIVKEY, - HWCRHK_R_CHIL_ERROR); - ERR_add_error_data(1,rmsg.buf); - goto err; - } - if (!*hptr) - { - HWCRHKerr(HWCRHK_F_HWCRHK_LOAD_PRIVKEY, - HWCRHK_R_NO_KEY); - goto err; - } -#endif -#ifndef OPENSSL_NO_RSA - rtmp = RSA_new_method(eng); - RSA_set_ex_data(rtmp, hndidx_rsa, (char *)hptr); - rtmp->e = BN_new(); - rtmp->n = BN_new(); - rtmp->flags |= RSA_FLAG_EXT_PKEY; - MPI2BN(rtmp->e, e); - MPI2BN(rtmp->n, n); - if (p_hwcrhk_RSAGetPublicKey(*hptr, &n, &e, &rmsg) - != HWCRYPTOHOOK_ERROR_MPISIZE) - { - HWCRHKerr(HWCRHK_F_HWCRHK_LOAD_PRIVKEY,HWCRHK_R_CHIL_ERROR); - ERR_add_error_data(1,rmsg.buf); - goto err; - } - - bn_expand2(rtmp->e, e.size/sizeof(BN_ULONG)); - bn_expand2(rtmp->n, n.size/sizeof(BN_ULONG)); - MPI2BN(rtmp->e, e); - MPI2BN(rtmp->n, n); - - if (p_hwcrhk_RSAGetPublicKey(*hptr, &n, &e, &rmsg)) - { - HWCRHKerr(HWCRHK_F_HWCRHK_LOAD_PRIVKEY, - HWCRHK_R_CHIL_ERROR); - ERR_add_error_data(1,rmsg.buf); - goto err; - } - rtmp->e->top = e.size / sizeof(BN_ULONG); - bn_fix_top(rtmp->e); - rtmp->n->top = n.size / sizeof(BN_ULONG); - bn_fix_top(rtmp->n); - - res = EVP_PKEY_new(); - EVP_PKEY_assign_RSA(res, rtmp); -#endif - - if (!res) - HWCRHKerr(HWCRHK_F_HWCRHK_LOAD_PRIVKEY, - HWCRHK_R_PRIVATE_KEY_ALGORITHMS_DISABLED); - - return res; + UI_METHOD *ui_method, + void *callback_data) +{ +# ifndef OPENSSL_NO_RSA + RSA *rtmp = NULL; +# endif + EVP_PKEY *res = NULL; +# ifndef OPENSSL_NO_RSA + HWCryptoHook_MPI e, n; + HWCryptoHook_RSAKeyHandle *hptr; +# endif +# if !defined(OPENSSL_NO_RSA) + char tempbuf[1024]; + HWCryptoHook_ErrMsgBuf rmsg; + HWCryptoHook_PassphraseContext ppctx; +# endif + +# if !defined(OPENSSL_NO_RSA) + rmsg.buf = tempbuf; + rmsg.size = sizeof(tempbuf); +# endif + + if (!hwcrhk_context) { + HWCRHKerr(HWCRHK_F_HWCRHK_LOAD_PRIVKEY, HWCRHK_R_NOT_INITIALISED); + goto err; + } +# ifndef OPENSSL_NO_RSA + hptr = OPENSSL_malloc(sizeof(HWCryptoHook_RSAKeyHandle)); + if (!hptr) { + HWCRHKerr(HWCRHK_F_HWCRHK_LOAD_PRIVKEY, ERR_R_MALLOC_FAILURE); + goto err; + } + ppctx.ui_method = ui_method; + ppctx.callback_data = callback_data; + if (p_hwcrhk_RSALoadKey(hwcrhk_context, key_id, hptr, &rmsg, &ppctx)) { + HWCRHKerr(HWCRHK_F_HWCRHK_LOAD_PRIVKEY, HWCRHK_R_CHIL_ERROR); + ERR_add_error_data(1, rmsg.buf); + goto err; + } + if (!*hptr) { + HWCRHKerr(HWCRHK_F_HWCRHK_LOAD_PRIVKEY, HWCRHK_R_NO_KEY); + goto err; + } +# endif +# ifndef OPENSSL_NO_RSA + rtmp = RSA_new_method(eng); + RSA_set_ex_data(rtmp, hndidx_rsa, (char *)hptr); + rtmp->e = BN_new(); + rtmp->n = BN_new(); + rtmp->flags |= RSA_FLAG_EXT_PKEY; + MPI2BN(rtmp->e, e); + MPI2BN(rtmp->n, n); + if (p_hwcrhk_RSAGetPublicKey(*hptr, &n, &e, &rmsg) + != HWCRYPTOHOOK_ERROR_MPISIZE) { + HWCRHKerr(HWCRHK_F_HWCRHK_LOAD_PRIVKEY, HWCRHK_R_CHIL_ERROR); + ERR_add_error_data(1, rmsg.buf); + goto err; + } + + bn_expand2(rtmp->e, e.size / sizeof(BN_ULONG)); + bn_expand2(rtmp->n, n.size / sizeof(BN_ULONG)); + MPI2BN(rtmp->e, e); + MPI2BN(rtmp->n, n); + + if (p_hwcrhk_RSAGetPublicKey(*hptr, &n, &e, &rmsg)) { + HWCRHKerr(HWCRHK_F_HWCRHK_LOAD_PRIVKEY, HWCRHK_R_CHIL_ERROR); + ERR_add_error_data(1, rmsg.buf); + goto err; + } + rtmp->e->top = e.size / sizeof(BN_ULONG); + bn_fix_top(rtmp->e); + rtmp->n->top = n.size / sizeof(BN_ULONG); + bn_fix_top(rtmp->n); + + res = EVP_PKEY_new(); + EVP_PKEY_assign_RSA(res, rtmp); +# endif + + if (!res) + HWCRHKerr(HWCRHK_F_HWCRHK_LOAD_PRIVKEY, + HWCRHK_R_PRIVATE_KEY_ALGORITHMS_DISABLED); + + return res; err: -#ifndef OPENSSL_NO_RSA - if (rtmp) - RSA_free(rtmp); -#endif - return NULL; - } +# ifndef OPENSSL_NO_RSA + if (rtmp) + RSA_free(rtmp); +# endif + return NULL; +} static EVP_PKEY *hwcrhk_load_pubkey(ENGINE *eng, const char *key_id, - UI_METHOD *ui_method, void *callback_data) - { - EVP_PKEY *res = NULL; - -#ifndef OPENSSL_NO_RSA - res = hwcrhk_load_privkey(eng, key_id, - ui_method, callback_data); -#endif - - if (res) - switch(res->type) - { -#ifndef OPENSSL_NO_RSA - case EVP_PKEY_RSA: - { - RSA *rsa = NULL; - - CRYPTO_w_lock(CRYPTO_LOCK_EVP_PKEY); - rsa = res->pkey.rsa; - res->pkey.rsa = RSA_new(); - res->pkey.rsa->n = rsa->n; - res->pkey.rsa->e = rsa->e; - rsa->n = NULL; - rsa->e = NULL; - CRYPTO_w_unlock(CRYPTO_LOCK_EVP_PKEY); - RSA_free(rsa); - } - break; -#endif - default: - HWCRHKerr(HWCRHK_F_HWCRHK_LOAD_PUBKEY, - HWCRHK_R_CTRL_COMMAND_NOT_IMPLEMENTED); - goto err; - } - - return res; + UI_METHOD *ui_method, void *callback_data) +{ + EVP_PKEY *res = NULL; + +# ifndef OPENSSL_NO_RSA + res = hwcrhk_load_privkey(eng, key_id, ui_method, callback_data); +# endif + + if (res) + switch (res->type) { +# ifndef OPENSSL_NO_RSA + case EVP_PKEY_RSA: + { + RSA *rsa = NULL; + + CRYPTO_w_lock(CRYPTO_LOCK_EVP_PKEY); + rsa = res->pkey.rsa; + res->pkey.rsa = RSA_new(); + res->pkey.rsa->n = rsa->n; + res->pkey.rsa->e = rsa->e; + rsa->n = NULL; + rsa->e = NULL; + CRYPTO_w_unlock(CRYPTO_LOCK_EVP_PKEY); + RSA_free(rsa); + } + break; +# endif + default: + HWCRHKerr(HWCRHK_F_HWCRHK_LOAD_PUBKEY, + HWCRHK_R_CTRL_COMMAND_NOT_IMPLEMENTED); + goto err; + } + + return res; err: - if (res) - EVP_PKEY_free(res); - return NULL; - } + if (res) + EVP_PKEY_free(res); + return NULL; +} /* A little mod_exp */ static int hwcrhk_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, - const BIGNUM *m, BN_CTX *ctx) - { - char tempbuf[1024]; - HWCryptoHook_ErrMsgBuf rmsg; - /* Since HWCryptoHook_MPI is pretty compatible with BIGNUM's, - we use them directly, plus a little macro magic. We only - thing we need to make sure of is that enough space is allocated. */ - HWCryptoHook_MPI m_a, m_p, m_n, m_r; - int to_return, ret; - - to_return = 0; /* expect failure */ - rmsg.buf = tempbuf; - rmsg.size = sizeof(tempbuf); - - if(!hwcrhk_context) - { - HWCRHKerr(HWCRHK_F_HWCRHK_MOD_EXP,HWCRHK_R_NOT_INITIALISED); - goto err; - } - /* Prepare the params */ - bn_expand2(r, m->top); /* Check for error !! */ - BN2MPI(m_a, a); - BN2MPI(m_p, p); - BN2MPI(m_n, m); - MPI2BN(r, m_r); - - /* Perform the operation */ - ret = p_hwcrhk_ModExp(hwcrhk_context, m_a, m_p, m_n, &m_r, &rmsg); - - /* Convert the response */ - r->top = m_r.size / sizeof(BN_ULONG); - bn_fix_top(r); - - if (ret < 0) - { - /* FIXME: When this error is returned, HWCryptoHook is - telling us that falling back to software computation - might be a good thing. */ - if(ret == HWCRYPTOHOOK_ERROR_FALLBACK) - { - HWCRHKerr(HWCRHK_F_HWCRHK_MOD_EXP,HWCRHK_R_REQUEST_FALLBACK); - } - else - { - HWCRHKerr(HWCRHK_F_HWCRHK_MOD_EXP,HWCRHK_R_REQUEST_FAILED); - } - ERR_add_error_data(1,rmsg.buf); - goto err; - } - - to_return = 1; -err: - return to_return; - } - -#ifndef OPENSSL_NO_RSA -static int hwcrhk_rsa_mod_exp(BIGNUM *r, const BIGNUM *I, RSA *rsa, BN_CTX *ctx) - { - char tempbuf[1024]; - HWCryptoHook_ErrMsgBuf rmsg; - HWCryptoHook_RSAKeyHandle *hptr; - int to_return = 0, ret; - - rmsg.buf = tempbuf; - rmsg.size = sizeof(tempbuf); - - if(!hwcrhk_context) - { - HWCRHKerr(HWCRHK_F_HWCRHK_RSA_MOD_EXP,HWCRHK_R_NOT_INITIALISED); - goto err; - } - - /* This provides support for nForce keys. Since that's opaque data - all we do is provide a handle to the proper key and let HWCryptoHook - take care of the rest. */ - if ((hptr = (HWCryptoHook_RSAKeyHandle *) RSA_get_ex_data(rsa, hndidx_rsa)) - != NULL) - { - HWCryptoHook_MPI m_a, m_r; - - if(!rsa->n) - { - HWCRHKerr(HWCRHK_F_HWCRHK_RSA_MOD_EXP, - HWCRHK_R_MISSING_KEY_COMPONENTS); - goto err; - } - - /* Prepare the params */ - bn_expand2(r, rsa->n->top); /* Check for error !! */ - BN2MPI(m_a, I); - MPI2BN(r, m_r); - - /* Perform the operation */ - ret = p_hwcrhk_RSA(m_a, *hptr, &m_r, &rmsg); - - /* Convert the response */ - r->top = m_r.size / sizeof(BN_ULONG); - bn_fix_top(r); - - if (ret < 0) - { - /* FIXME: When this error is returned, HWCryptoHook is - telling us that falling back to software computation - might be a good thing. */ - if(ret == HWCRYPTOHOOK_ERROR_FALLBACK) - { - HWCRHKerr(HWCRHK_F_HWCRHK_RSA_MOD_EXP, - HWCRHK_R_REQUEST_FALLBACK); - } - else - { - HWCRHKerr(HWCRHK_F_HWCRHK_RSA_MOD_EXP, - HWCRHK_R_REQUEST_FAILED); - } - ERR_add_error_data(1,rmsg.buf); - goto err; - } - } - else - { - HWCryptoHook_MPI m_a, m_p, m_q, m_dmp1, m_dmq1, m_iqmp, m_r; - - if(!rsa->p || !rsa->q || !rsa->dmp1 || !rsa->dmq1 || !rsa->iqmp) - { - HWCRHKerr(HWCRHK_F_HWCRHK_RSA_MOD_EXP, - HWCRHK_R_MISSING_KEY_COMPONENTS); - goto err; - } - - /* Prepare the params */ - bn_expand2(r, rsa->n->top); /* Check for error !! */ - BN2MPI(m_a, I); - BN2MPI(m_p, rsa->p); - BN2MPI(m_q, rsa->q); - BN2MPI(m_dmp1, rsa->dmp1); - BN2MPI(m_dmq1, rsa->dmq1); - BN2MPI(m_iqmp, rsa->iqmp); - MPI2BN(r, m_r); - - /* Perform the operation */ - ret = p_hwcrhk_ModExpCRT(hwcrhk_context, m_a, m_p, m_q, - m_dmp1, m_dmq1, m_iqmp, &m_r, &rmsg); - - /* Convert the response */ - r->top = m_r.size / sizeof(BN_ULONG); - bn_fix_top(r); - - if (ret < 0) - { - /* FIXME: When this error is returned, HWCryptoHook is - telling us that falling back to software computation - might be a good thing. */ - if(ret == HWCRYPTOHOOK_ERROR_FALLBACK) - { - HWCRHKerr(HWCRHK_F_HWCRHK_RSA_MOD_EXP, - HWCRHK_R_REQUEST_FALLBACK); - } - else - { - HWCRHKerr(HWCRHK_F_HWCRHK_RSA_MOD_EXP, - HWCRHK_R_REQUEST_FAILED); - } - ERR_add_error_data(1,rmsg.buf); - goto err; - } - } - /* If we're here, we must be here with some semblance of success :-) */ - to_return = 1; -err: - return to_return; - } -#endif + const BIGNUM *m, BN_CTX *ctx) +{ + char tempbuf[1024]; + HWCryptoHook_ErrMsgBuf rmsg; + /* + * Since HWCryptoHook_MPI is pretty compatible with BIGNUM's, we use them + * directly, plus a little macro magic. We only thing we need to make + * sure of is that enough space is allocated. + */ + HWCryptoHook_MPI m_a, m_p, m_n, m_r; + int to_return, ret; + + to_return = 0; /* expect failure */ + rmsg.buf = tempbuf; + rmsg.size = sizeof(tempbuf); + + if (!hwcrhk_context) { + HWCRHKerr(HWCRHK_F_HWCRHK_MOD_EXP, HWCRHK_R_NOT_INITIALISED); + goto err; + } + /* Prepare the params */ + bn_expand2(r, m->top); /* Check for error !! */ + BN2MPI(m_a, a); + BN2MPI(m_p, p); + BN2MPI(m_n, m); + MPI2BN(r, m_r); + + /* Perform the operation */ + ret = p_hwcrhk_ModExp(hwcrhk_context, m_a, m_p, m_n, &m_r, &rmsg); + + /* Convert the response */ + r->top = m_r.size / sizeof(BN_ULONG); + bn_fix_top(r); + + if (ret < 0) { + /* + * FIXME: When this error is returned, HWCryptoHook is telling us + * that falling back to software computation might be a good thing. + */ + if (ret == HWCRYPTOHOOK_ERROR_FALLBACK) { + HWCRHKerr(HWCRHK_F_HWCRHK_MOD_EXP, HWCRHK_R_REQUEST_FALLBACK); + } else { + HWCRHKerr(HWCRHK_F_HWCRHK_MOD_EXP, HWCRHK_R_REQUEST_FAILED); + } + ERR_add_error_data(1, rmsg.buf); + goto err; + } + + to_return = 1; + err: + return to_return; +} + +# ifndef OPENSSL_NO_RSA +static int hwcrhk_rsa_mod_exp(BIGNUM *r, const BIGNUM *I, RSA *rsa, + BN_CTX *ctx) +{ + char tempbuf[1024]; + HWCryptoHook_ErrMsgBuf rmsg; + HWCryptoHook_RSAKeyHandle *hptr; + int to_return = 0, ret; + + rmsg.buf = tempbuf; + rmsg.size = sizeof(tempbuf); + + if (!hwcrhk_context) { + HWCRHKerr(HWCRHK_F_HWCRHK_RSA_MOD_EXP, HWCRHK_R_NOT_INITIALISED); + goto err; + } + + /* + * This provides support for nForce keys. Since that's opaque data all + * we do is provide a handle to the proper key and let HWCryptoHook take + * care of the rest. + */ + if ((hptr = + (HWCryptoHook_RSAKeyHandle *) RSA_get_ex_data(rsa, hndidx_rsa)) + != NULL) { + HWCryptoHook_MPI m_a, m_r; + + if (!rsa->n) { + HWCRHKerr(HWCRHK_F_HWCRHK_RSA_MOD_EXP, + HWCRHK_R_MISSING_KEY_COMPONENTS); + goto err; + } + + /* Prepare the params */ + bn_expand2(r, rsa->n->top); /* Check for error !! */ + BN2MPI(m_a, I); + MPI2BN(r, m_r); + + /* Perform the operation */ + ret = p_hwcrhk_RSA(m_a, *hptr, &m_r, &rmsg); + + /* Convert the response */ + r->top = m_r.size / sizeof(BN_ULONG); + bn_fix_top(r); + + if (ret < 0) { + /* + * FIXME: When this error is returned, HWCryptoHook is telling us + * that falling back to software computation might be a good + * thing. + */ + if (ret == HWCRYPTOHOOK_ERROR_FALLBACK) { + HWCRHKerr(HWCRHK_F_HWCRHK_RSA_MOD_EXP, + HWCRHK_R_REQUEST_FALLBACK); + } else { + HWCRHKerr(HWCRHK_F_HWCRHK_RSA_MOD_EXP, + HWCRHK_R_REQUEST_FAILED); + } + ERR_add_error_data(1, rmsg.buf); + goto err; + } + } else { + HWCryptoHook_MPI m_a, m_p, m_q, m_dmp1, m_dmq1, m_iqmp, m_r; + + if (!rsa->p || !rsa->q || !rsa->dmp1 || !rsa->dmq1 || !rsa->iqmp) { + HWCRHKerr(HWCRHK_F_HWCRHK_RSA_MOD_EXP, + HWCRHK_R_MISSING_KEY_COMPONENTS); + goto err; + } + + /* Prepare the params */ + bn_expand2(r, rsa->n->top); /* Check for error !! */ + BN2MPI(m_a, I); + BN2MPI(m_p, rsa->p); + BN2MPI(m_q, rsa->q); + BN2MPI(m_dmp1, rsa->dmp1); + BN2MPI(m_dmq1, rsa->dmq1); + BN2MPI(m_iqmp, rsa->iqmp); + MPI2BN(r, m_r); + + /* Perform the operation */ + ret = p_hwcrhk_ModExpCRT(hwcrhk_context, m_a, m_p, m_q, + m_dmp1, m_dmq1, m_iqmp, &m_r, &rmsg); + + /* Convert the response */ + r->top = m_r.size / sizeof(BN_ULONG); + bn_fix_top(r); + + if (ret < 0) { + /* + * FIXME: When this error is returned, HWCryptoHook is telling us + * that falling back to software computation might be a good + * thing. + */ + if (ret == HWCRYPTOHOOK_ERROR_FALLBACK) { + HWCRHKerr(HWCRHK_F_HWCRHK_RSA_MOD_EXP, + HWCRHK_R_REQUEST_FALLBACK); + } else { + HWCRHKerr(HWCRHK_F_HWCRHK_RSA_MOD_EXP, + HWCRHK_R_REQUEST_FAILED); + } + ERR_add_error_data(1, rmsg.buf); + goto err; + } + } + /* + * If we're here, we must be here with some semblance of success :-) + */ + to_return = 1; + err: + return to_return; +} +# endif -#ifndef OPENSSL_NO_RSA +# ifndef OPENSSL_NO_RSA /* This function is aliased to mod_exp (with the mont stuff dropped). */ static int hwcrhk_mod_exp_mont(BIGNUM *r, const BIGNUM *a, const BIGNUM *p, - const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx) - { - return hwcrhk_mod_exp(r, a, p, m, ctx); - } + const BIGNUM *m, BN_CTX *ctx, + BN_MONT_CTX *m_ctx) +{ + return hwcrhk_mod_exp(r, a, p, m, ctx); +} static int hwcrhk_rsa_finish(RSA *rsa) - { - HWCryptoHook_RSAKeyHandle *hptr; - - hptr = RSA_get_ex_data(rsa, hndidx_rsa); - if (hptr) - { - p_hwcrhk_RSAUnloadKey(*hptr, NULL); - OPENSSL_free(hptr); - RSA_set_ex_data(rsa, hndidx_rsa, NULL); - } - return 1; - } +{ + HWCryptoHook_RSAKeyHandle *hptr; -#endif + hptr = RSA_get_ex_data(rsa, hndidx_rsa); + if (hptr) { + p_hwcrhk_RSAUnloadKey(*hptr, NULL); + OPENSSL_free(hptr); + RSA_set_ex_data(rsa, hndidx_rsa, NULL); + } + return 1; +} -#ifndef OPENSSL_NO_DH +# endif + +# ifndef OPENSSL_NO_DH /* This function is aliased to mod_exp (with the dh and mont dropped). */ static int hwcrhk_mod_exp_dh(const DH *dh, BIGNUM *r, - const BIGNUM *a, const BIGNUM *p, - const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx) - { - return hwcrhk_mod_exp(r, a, p, m, ctx); - } -#endif + const BIGNUM *a, const BIGNUM *p, + const BIGNUM *m, BN_CTX *ctx, BN_MONT_CTX *m_ctx) +{ + return hwcrhk_mod_exp(r, a, p, m, ctx); +} +# endif /* Random bytes are good */ static int hwcrhk_rand_bytes(unsigned char *buf, int num) - { - char tempbuf[1024]; - HWCryptoHook_ErrMsgBuf rmsg; - int to_return = 0; /* assume failure */ - int ret; - - rmsg.buf = tempbuf; - rmsg.size = sizeof(tempbuf); - - if(!hwcrhk_context) - { - HWCRHKerr(HWCRHK_F_HWCRHK_RAND_BYTES,HWCRHK_R_NOT_INITIALISED); - goto err; - } - - ret = p_hwcrhk_RandomBytes(hwcrhk_context, buf, num, &rmsg); - if (ret < 0) - { - /* FIXME: When this error is returned, HWCryptoHook is - telling us that falling back to software computation - might be a good thing. */ - if(ret == HWCRYPTOHOOK_ERROR_FALLBACK) - { - HWCRHKerr(HWCRHK_F_HWCRHK_RAND_BYTES, - HWCRHK_R_REQUEST_FALLBACK); - } - else - { - HWCRHKerr(HWCRHK_F_HWCRHK_RAND_BYTES, - HWCRHK_R_REQUEST_FAILED); - } - ERR_add_error_data(1,rmsg.buf); - goto err; - } - to_return = 1; +{ + char tempbuf[1024]; + HWCryptoHook_ErrMsgBuf rmsg; + int to_return = 0; /* assume failure */ + int ret; + + rmsg.buf = tempbuf; + rmsg.size = sizeof(tempbuf); + + if (!hwcrhk_context) { + HWCRHKerr(HWCRHK_F_HWCRHK_RAND_BYTES, HWCRHK_R_NOT_INITIALISED); + goto err; + } + + ret = p_hwcrhk_RandomBytes(hwcrhk_context, buf, num, &rmsg); + if (ret < 0) { + /* + * FIXME: When this error is returned, HWCryptoHook is telling us + * that falling back to software computation might be a good thing. + */ + if (ret == HWCRYPTOHOOK_ERROR_FALLBACK) { + HWCRHKerr(HWCRHK_F_HWCRHK_RAND_BYTES, HWCRHK_R_REQUEST_FALLBACK); + } else { + HWCRHKerr(HWCRHK_F_HWCRHK_RAND_BYTES, HWCRHK_R_REQUEST_FAILED); + } + ERR_add_error_data(1, rmsg.buf); + goto err; + } + to_return = 1; err: - return to_return; - } + return to_return; +} static int hwcrhk_rand_status(void) - { - return 1; - } +{ + return 1; +} -/* Mutex calls: since the HWCryptoHook model closely follows the POSIX model +/* + * Mutex calls: since the HWCryptoHook model closely follows the POSIX model * these just wrap the POSIX functions and add some logging. */ -static int hwcrhk_mutex_init(HWCryptoHook_Mutex* mt, - HWCryptoHook_CallerContext *cactx) - { - mt->lockid = CRYPTO_get_new_dynlockid(); - if (mt->lockid == 0) - return 1; /* failure */ - return 0; /* success */ - } - -static int hwcrhk_mutex_lock(HWCryptoHook_Mutex *mt) - { - CRYPTO_w_lock(mt->lockid); - return 0; - } +static int hwcrhk_mutex_init(HWCryptoHook_Mutex * mt, + HWCryptoHook_CallerContext * cactx) +{ + mt->lockid = CRYPTO_get_new_dynlockid(); + if (mt->lockid == 0) + return 1; /* failure */ + return 0; /* success */ +} + +static int hwcrhk_mutex_lock(HWCryptoHook_Mutex * mt) +{ + CRYPTO_w_lock(mt->lockid); + return 0; +} static void hwcrhk_mutex_unlock(HWCryptoHook_Mutex * mt) - { - CRYPTO_w_unlock(mt->lockid); - } +{ + CRYPTO_w_unlock(mt->lockid); +} -static void hwcrhk_mutex_destroy(HWCryptoHook_Mutex *mt) - { - CRYPTO_destroy_dynlockid(mt->lockid); - } +static void hwcrhk_mutex_destroy(HWCryptoHook_Mutex * mt) +{ + CRYPTO_destroy_dynlockid(mt->lockid); +} static int hwcrhk_get_pass(const char *prompt_info, - int *len_io, char *buf, - HWCryptoHook_PassphraseContext *ppctx, - HWCryptoHook_CallerContext *cactx) - { - pem_password_cb *callback = NULL; - void *callback_data = NULL; - UI_METHOD *ui_method = NULL; - /* Despite what the documentation says prompt_info can be - * an empty string. - */ - if (prompt_info && !*prompt_info) - prompt_info = NULL; - - if (cactx) - { - if (cactx->ui_method) - ui_method = cactx->ui_method; - if (cactx->password_callback) - callback = cactx->password_callback; - if (cactx->callback_data) - callback_data = cactx->callback_data; - } - if (ppctx) - { - if (ppctx->ui_method) - { - ui_method = ppctx->ui_method; - callback = NULL; - } - if (ppctx->callback_data) - callback_data = ppctx->callback_data; - } - if (callback == NULL && ui_method == NULL) - { - HWCRHKerr(HWCRHK_F_HWCRHK_GET_PASS,HWCRHK_R_NO_CALLBACK); - return -1; - } - - if (ui_method) - { - UI *ui = UI_new_method(ui_method); - if (ui) - { - int ok; - char *prompt = UI_construct_prompt(ui, - "pass phrase", prompt_info); - - ok = UI_add_input_string(ui,prompt, - UI_INPUT_FLAG_DEFAULT_PWD, - buf,0,(*len_io) - 1); - UI_add_user_data(ui, callback_data); - UI_ctrl(ui, UI_CTRL_PRINT_ERRORS, 1, 0, 0); - - if (ok >= 0) - do - { - ok=UI_process(ui); - } - while (ok < 0 && UI_ctrl(ui, UI_CTRL_IS_REDOABLE, 0, 0, 0)); - - if (ok >= 0) - *len_io = strlen(buf); - - UI_free(ui); - OPENSSL_free(prompt); - } - } - else - { - *len_io = callback(buf, *len_io, 0, callback_data); + int *len_io, char *buf, + HWCryptoHook_PassphraseContext * ppctx, + HWCryptoHook_CallerContext * cactx) +{ + pem_password_cb *callback = NULL; + void *callback_data = NULL; + UI_METHOD *ui_method = NULL; + /* + * Despite what the documentation says prompt_info can be an empty + * string. + */ + if (prompt_info && !*prompt_info) + prompt_info = NULL; + + if (cactx) { + if (cactx->ui_method) + ui_method = cactx->ui_method; + if (cactx->password_callback) + callback = cactx->password_callback; + if (cactx->callback_data) + callback_data = cactx->callback_data; + } + if (ppctx) { + if (ppctx->ui_method) { + ui_method = ppctx->ui_method; + callback = NULL; + } + if (ppctx->callback_data) + callback_data = ppctx->callback_data; + } + if (callback == NULL && ui_method == NULL) { + HWCRHKerr(HWCRHK_F_HWCRHK_GET_PASS, HWCRHK_R_NO_CALLBACK); + return -1; + } + + if (ui_method) { + UI *ui = UI_new_method(ui_method); + if (ui) { + int ok; + char *prompt = UI_construct_prompt(ui, + "pass phrase", prompt_info); + + ok = UI_add_input_string(ui, prompt, + UI_INPUT_FLAG_DEFAULT_PWD, + buf, 0, (*len_io) - 1); + UI_add_user_data(ui, callback_data); + UI_ctrl(ui, UI_CTRL_PRINT_ERRORS, 1, 0, 0); + + if (ok >= 0) + do { + ok = UI_process(ui); } - if(!*len_io) - return -1; - return 0; - } + while (ok < 0 && UI_ctrl(ui, UI_CTRL_IS_REDOABLE, 0, 0, 0)); + + if (ok >= 0) + *len_io = strlen(buf); + + UI_free(ui); + OPENSSL_free(prompt); + } + } else { + *len_io = callback(buf, *len_io, 0, callback_data); + } + if (!*len_io) + return -1; + return 0; +} static int hwcrhk_insert_card(const char *prompt_info, - const char *wrong_info, - HWCryptoHook_PassphraseContext *ppctx, - HWCryptoHook_CallerContext *cactx) - { - int ok = -1; - UI *ui; - void *callback_data = NULL; - UI_METHOD *ui_method = NULL; - - if (cactx) - { - if (cactx->ui_method) - ui_method = cactx->ui_method; - if (cactx->callback_data) - callback_data = cactx->callback_data; - } - if (ppctx) - { - if (ppctx->ui_method) - ui_method = ppctx->ui_method; - if (ppctx->callback_data) - callback_data = ppctx->callback_data; - } - if (ui_method == NULL) - { - HWCRHKerr(HWCRHK_F_HWCRHK_INSERT_CARD, - HWCRHK_R_NO_CALLBACK); - return -1; - } - - ui = UI_new_method(ui_method); - - if (ui) - { - char answer; - char buf[BUFSIZ]; - /* Despite what the documentation says wrong_info can be - * an empty string. - */ - if (wrong_info && *wrong_info) - BIO_snprintf(buf, sizeof(buf)-1, - "Current card: \"%s\"\n", wrong_info); - else - buf[0] = 0; - ok = UI_dup_info_string(ui, buf); - if (ok >= 0 && prompt_info) - { - BIO_snprintf(buf, sizeof(buf)-1, - "Insert card \"%s\"", prompt_info); - ok = UI_dup_input_boolean(ui, buf, - "\n then hit <enter> or C<enter> to cancel\n", - "\r\n", "Cc", UI_INPUT_FLAG_ECHO, &answer); - } - UI_add_user_data(ui, callback_data); - - if (ok >= 0) - ok = UI_process(ui); - UI_free(ui); - - if (ok == -2 || (ok >= 0 && answer == 'C')) - ok = 1; - else if (ok < 0) - ok = -1; - else - ok = 0; - } - return ok; - } + const char *wrong_info, + HWCryptoHook_PassphraseContext * ppctx, + HWCryptoHook_CallerContext * cactx) +{ + int ok = -1; + UI *ui; + void *callback_data = NULL; + UI_METHOD *ui_method = NULL; + + if (cactx) { + if (cactx->ui_method) + ui_method = cactx->ui_method; + if (cactx->callback_data) + callback_data = cactx->callback_data; + } + if (ppctx) { + if (ppctx->ui_method) + ui_method = ppctx->ui_method; + if (ppctx->callback_data) + callback_data = ppctx->callback_data; + } + if (ui_method == NULL) { + HWCRHKerr(HWCRHK_F_HWCRHK_INSERT_CARD, HWCRHK_R_NO_CALLBACK); + return -1; + } + + ui = UI_new_method(ui_method); + + if (ui) { + char answer; + char buf[BUFSIZ]; + /* + * Despite what the documentation says wrong_info can be an empty + * string. + */ + if (wrong_info && *wrong_info) + BIO_snprintf(buf, sizeof(buf) - 1, + "Current card: \"%s\"\n", wrong_info); + else + buf[0] = 0; + ok = UI_dup_info_string(ui, buf); + if (ok >= 0 && prompt_info) { + BIO_snprintf(buf, sizeof(buf) - 1, + "Insert card \"%s\"", prompt_info); + ok = UI_dup_input_boolean(ui, buf, + "\n then hit <enter> or C<enter> to cancel\n", + "\r\n", "Cc", UI_INPUT_FLAG_ECHO, + &answer); + } + UI_add_user_data(ui, callback_data); + + if (ok >= 0) + ok = UI_process(ui); + UI_free(ui); + + if (ok == -2 || (ok >= 0 && answer == 'C')) + ok = 1; + else if (ok < 0) + ok = -1; + else + ok = 0; + } + return ok; +} static void hwcrhk_log_message(void *logstr, const char *message) - { - BIO *lstream = NULL; - - CRYPTO_w_lock(CRYPTO_LOCK_BIO); - if (logstr) - lstream=*(BIO **)logstr; - if (lstream) - { - BIO_printf(lstream, "%s\n", message); - } - CRYPTO_w_unlock(CRYPTO_LOCK_BIO); - } - -/* This stuff is needed if this ENGINE is being compiled into a self-contained - * shared-library. */ -#ifndef OPENSSL_NO_DYNAMIC_ENGINE +{ + BIO *lstream = NULL; + + CRYPTO_w_lock(CRYPTO_LOCK_BIO); + if (logstr) + lstream = *(BIO **)logstr; + if (lstream) { + BIO_printf(lstream, "%s\n", message); + } + CRYPTO_w_unlock(CRYPTO_LOCK_BIO); +} + +/* + * This stuff is needed if this ENGINE is being compiled into a + * self-contained shared-library. + */ +# ifndef OPENSSL_NO_DYNAMIC_ENGINE static int bind_fn(ENGINE *e, const char *id) - { - if(id && (strcmp(id, engine_hwcrhk_id) != 0) && - (strcmp(id, engine_hwcrhk_id_alt) != 0)) - return 0; - if(!bind_helper(e)) - return 0; - return 1; - } -IMPLEMENT_DYNAMIC_CHECK_FN() -IMPLEMENT_DYNAMIC_BIND_FN(bind_fn) -#endif /* OPENSSL_NO_DYNAMIC_ENGINE */ +{ + if (id && (strcmp(id, engine_hwcrhk_id) != 0) && + (strcmp(id, engine_hwcrhk_id_alt) != 0)) + return 0; + if (!bind_helper(e)) + return 0; + return 1; +} -#endif /* !OPENSSL_NO_HW_CHIL */ -#endif /* !OPENSSL_NO_HW */ +IMPLEMENT_DYNAMIC_CHECK_FN() + IMPLEMENT_DYNAMIC_BIND_FN(bind_fn) +# endif /* OPENSSL_NO_DYNAMIC_ENGINE */ +# endif /* !OPENSSL_NO_HW_CHIL */ +#endif /* !OPENSSL_NO_HW */ |