--- /dev/null
+/*
+ * Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+#include <stdio.h>
+#include <string.h>
+#include <openssl/crypto.h>
+#include <openssl/pem.h>
+#include "internal/dso.h"
+#include <openssl/engine.h>
+#include <openssl/ui.h>
+#include <openssl/rand.h>
+#ifndef OPENSSL_NO_RSA
+# include <openssl/rsa.h>
+#endif
+#ifndef OPENSSL_NO_DH
+# include <openssl/dh.h>
+#endif
+#include <openssl/bn.h>
+
+#ifndef OPENSSL_NO_HW
+# ifndef OPENSSL_NO_HW_CHIL
+
+/*-
+ * 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.
+ *
+ * The hwcryptohook.h included here is from May 2000.
+ * [Richard Levitte]
+ */
+# ifdef FLAT_INC
+# include "hwcryptohook.h"
+# else
+# include "vendor_defns/hwcryptohook.h"
+# endif
+
+# define HWCRHK_LIB_NAME "CHIL engine"
+# include "e_chil_err.c"
+
+static CRYPTO_RWLOCK *chil_lock;
+
+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));
+
+/* 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 *);
+
+/* BIGNUM stuff */
+static int hwcrhk_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
+ const BIGNUM *m, BN_CTX *ctx);
+
+# ifndef OPENSSL_NO_RSA
+/* RSA stuff */
+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);
+static int hwcrhk_rsa_finish(RSA *rsa);
+# endif
+
+# 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
+
+/* RAND stuff */
+static int hwcrhk_rand_bytes(unsigned char *buf, int num);
+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);
+static EVP_PKEY *hwcrhk_load_pubkey(ENGINE *eng, const char *key_id,
+ 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);
+static int hwcrhk_get_pass(const char *prompt_info,
+ 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)
+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}
+};
+
+# 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
+
+# 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,
+};
+
+/* 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
+/* Compatibility hack, the dynamic library uses this form in the path */
+static const char *engine_hwcrhk_id_alt = "ncipher";
+# 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 {
+ CRYPTO_RWLOCK *lock;
+};
+
+/*
+ * 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) \
+ {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.
+ */
+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 */
+};
+
+/* Now, to our own code */
+
+/*
+ * 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
+
+ chil_lock = CRYPTO_THREAD_lock_new();
+ if (chil_lock == NULL) {
+ HWCRHKerr(HWCRHK_F_BIND_HELPER, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+
+ 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_OpenSSL()" 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_OpenSSL();
+ 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 == NULL)
+ 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.
+ */
+static DSO *hwcrhk_dso = NULL;
+static HWCryptoHook_ContextHandle hwcrhk_context = 0;
+# 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
+static HWCryptoHook_RSA_t *p_hwcrhk_RSA = NULL;
+# endif
+static HWCryptoHook_RandomBytes_t *p_hwcrhk_RandomBytes = NULL;
+# 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
+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)
+{
+ OPENSSL_free(HWCRHK_LIBNAME);
+ HWCRHK_LIBNAME = NULL;
+}
+
+static const char *get_HWCRHK_LIBNAME(void)
+{
+ if (HWCRHK_LIBNAME)
+ return HWCRHK_LIBNAME;
+ return "nfhwcrhk";
+}
+
+static long set_HWCRHK_LIBNAME(const char *name)
+{
+ free_HWCRHK_LIBNAME();
+ return (((HWCRHK_LIBNAME = OPENSSL_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
+static const char *n_hwcrhk_RSA = "HWCryptoHook_RSA";
+# endif
+static const char *n_hwcrhk_RandomBytes = "HWCryptoHook_RandomBytes";
+# 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
+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.
+ */
+
+/* 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;
+}
+
+/* similarly to release one. */
+static void release_context(HWCryptoHook_ContextHandle hac)
+{
+ p_hwcrhk_Finish(hac);
+}
+
+/* Destructor (complements the "ENGINE_chil()" constructor) */
+static int hwcrhk_destroy(ENGINE *e)
+{
+ free_HWCRHK_LIBNAME();
+ ERR_unload_HWCRHK_strings();
+ CRYPTO_THREAD_lock_free(chil_lock);
+ 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;
+ }
+
+#define BINDIT(t, name) (t *)DSO_bind_func(hwcrhk_dso, name)
+ if ((p1 = BINDIT(HWCryptoHook_Init_t, n_hwcrhk_Init)) == NULL
+ || (p2 = BINDIT(HWCryptoHook_Finish_t, n_hwcrhk_Finish)) == NULL
+ || (p3 = BINDIT(HWCryptoHook_ModExp_t, n_hwcrhk_ModExp)) == NULL
+# ifndef OPENSSL_NO_RSA
+ || (p4 = BINDIT(HWCryptoHook_RSA_t, n_hwcrhk_RSA)) == NULL
+ || (p5 = BINDIT(HWCryptoHook_RSALoadKey_t, n_hwcrhk_RSALoadKey)) == NULL
+ || (p6 = BINDIT(HWCryptoHook_RSAGetPublicKey_t, n_hwcrhk_RSAGetPublicKey)) == NULL
+ || (p7 = BINDIT(HWCryptoHook_RSAUnloadKey_t, n_hwcrhk_RSAUnloadKey)) == NULL
+# endif
+ || (p8 = BINDIT(HWCryptoHook_RandomBytes_t, n_hwcrhk_RandomBytes)) == NULL
+ || (p9 = BINDIT(HWCryptoHook_ModExpCRT_t, n_hwcrhk_ModExpCRT)) == NULL) {
+ 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) {
+ 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:
+ 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;
+ }
+ err:
+ 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_THREAD_write_lock(chil_lock);
+ BIO_free(logstream);
+ logstream = NULL;
+ if (BIO_up_ref(bio))
+ logstream = bio;
+ else
+ HWCRHKerr(HWCRHK_F_HWCRHK_CTRL, HWCRHK_R_BIO_WAS_FREED);
+ }
+ CRYPTO_THREAD_unlock(chil_lock);
+ break;
+ case ENGINE_CTRL_SET_PASSWORD_CALLBACK:
+ CRYPTO_THREAD_write_lock(chil_lock);
+ password_context.password_callback = (pem_password_cb *)f;
+ CRYPTO_THREAD_unlock(chil_lock);
+ break;
+ case ENGINE_CTRL_SET_USER_INTERFACE:
+ case HWCRHK_CMD_SET_USER_INTERFACE:
+ CRYPTO_THREAD_write_lock(chil_lock);
+ password_context.ui_method = (UI_METHOD *)p;
+ CRYPTO_THREAD_unlock(chil_lock);
+ break;
+ case ENGINE_CTRL_SET_CALLBACK_DATA:
+ case HWCRHK_CMD_SET_CALLBACK_DATA:
+ CRYPTO_THREAD_write_lock(chil_lock);
+ password_context.callback_data = p;
+ CRYPTO_THREAD_unlock(chil_lock);
+ 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_THREAD_write_lock(chil_lock);
+ if (i)
+ hwcrhk_globals.flags |= HWCryptoHook_InitFlags_SimpleForkCheck;
+ else
+ hwcrhk_globals.flags &= ~HWCryptoHook_InitFlags_SimpleForkCheck;
+ CRYPTO_THREAD_unlock(chil_lock);
+ 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_THREAD_write_lock(chil_lock);
+ disable_mutex_callbacks = 1;
+ CRYPTO_THREAD_unlock(chil_lock);
+ break;
+ case HWCRHK_CMD_THREAD_LOCKING:
+ CRYPTO_THREAD_write_lock(chil_lock);
+ disable_mutex_callbacks = ((i == 0) ? 0 : 1);
+ CRYPTO_THREAD_unlock(chil_lock);
+ 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(*hptr));
+ if (hptr == NULL) {
+ 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();
+ if (res == NULL) {
+ HWCRHKerr(HWCRHK_F_HWCRHK_LOAD_PRIVKEY, HWCRHK_R_CHIL_ERROR);
+ goto err;
+ }
+ EVP_PKEY_assign_RSA(res, rtmp);
+# endif
+
+ if (res == NULL)
+ HWCRHKerr(HWCRHK_F_HWCRHK_LOAD_PRIVKEY,
+ HWCRHK_R_PRIVATE_KEY_ALGORITHMS_DISABLED);
+
+ return res;
+ err:
+# ifndef OPENSSL_NO_RSA
+ 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_THREAD_write_lock(chil_lock);
+ 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_THREAD_unlock(chil_lock);
+ RSA_free(rsa);
+ }
+ break;
+# endif
+ default:
+ HWCRHKerr(HWCRHK_F_HWCRHK_LOAD_PUBKEY,
+ HWCRHK_R_CTRL_COMMAND_NOT_IMPLEMENTED);
+ goto err;
+ }
+
+ return res;
+ err:
+ 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
+
+# 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);
+}
+
+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;
+}
+
+# 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
+
+/* 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;
+ err:
+ return to_return;
+}
+
+static int hwcrhk_rand_status(void)
+{
+ return 1;
+}
+
+/*
+ * 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->lock = CRYPTO_THREAD_lock_new();
+ if (mt->lock == NULL) {
+ HWCRHKerr(HWCRHK_F_HWCRHK_MUTEX_INIT, ERR_R_MALLOC_FAILURE);
+ return 1; /* failure */
+ }
+ return 0; /* success */
+}
+
+static int hwcrhk_mutex_lock(HWCryptoHook_Mutex * mt)
+{
+ CRYPTO_THREAD_write_lock(mt->lock);
+ return 0;
+}
+
+static void hwcrhk_mutex_unlock(HWCryptoHook_Mutex * mt)
+{
+ CRYPTO_THREAD_unlock(mt->lock);
+}
+
+static void hwcrhk_mutex_destroy(HWCryptoHook_Mutex * mt)
+{
+ CRYPTO_THREAD_lock_free(mt->lock);
+}
+
+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);
+ }
+ 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 = '\0';
+ 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;
+
+ if (logstr)
+ lstream = *(BIO **)logstr;
+ if (lstream) {
+ BIO_printf(lstream, "%s\n", message);
+ }
+}
+
+/*
+ * 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 */
+# endif /* !OPENSSL_NO_HW_CHIL */
+#endif /* !OPENSSL_NO_HW */
--- /dev/null
+L HWCRHK e_chil_err.h e_chil_err.c
--- /dev/null
+/*
+ * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+/*
+ * NOTE: this file was auto generated by the mkerr.pl script: any changes
+ * made to it will be overwritten when the script next updates this file,
+ * only reason strings will be preserved.
+ */
+
+#include <stdio.h>
+#include <openssl/err.h>
+#include "e_chil_err.h"
+
+/* BEGIN ERROR CODES */
+#ifndef OPENSSL_NO_ERR
+
+# define ERR_FUNC(func) ERR_PACK(0,func,0)
+# define ERR_REASON(reason) ERR_PACK(0,0,reason)
+
+static ERR_STRING_DATA HWCRHK_str_functs[] = {
+ {ERR_FUNC(HWCRHK_F_HWCRHK_CTRL), "HWCRHK_CTRL"},
+ {ERR_FUNC(HWCRHK_F_HWCRHK_FINISH), "HWCRHK_FINISH"},
+ {ERR_FUNC(HWCRHK_F_HWCRHK_GET_PASS), "HWCRHK_GET_PASS"},
+ {ERR_FUNC(HWCRHK_F_HWCRHK_INIT), "HWCRHK_INIT"},
+ {ERR_FUNC(HWCRHK_F_HWCRHK_INSERT_CARD), "HWCRHK_INSERT_CARD"},
+ {ERR_FUNC(HWCRHK_F_HWCRHK_LOAD_PRIVKEY), "HWCRHK_LOAD_PRIVKEY"},
+ {ERR_FUNC(HWCRHK_F_HWCRHK_LOAD_PUBKEY), "HWCRHK_LOAD_PUBKEY"},
+ {ERR_FUNC(HWCRHK_F_HWCRHK_MOD_EXP), "HWCRHK_MOD_EXP"},
+ {ERR_FUNC(HWCRHK_F_HWCRHK_RAND_BYTES), "HWCRHK_RAND_BYTES"},
+ {ERR_FUNC(HWCRHK_F_HWCRHK_RSA_MOD_EXP), "HWCRHK_RSA_MOD_EXP"},
+ {0, NULL}
+};
+
+static ERR_STRING_DATA HWCRHK_str_reasons[] = {
+ {ERR_REASON(HWCRHK_R_ALREADY_LOADED), "already loaded"},
+ {ERR_REASON(HWCRHK_R_BIO_WAS_FREED), "bio was freed"},
+ {ERR_REASON(HWCRHK_R_CHIL_ERROR), "chil error"},
+ {ERR_REASON(HWCRHK_R_CTRL_COMMAND_NOT_IMPLEMENTED),
+ "ctrl command not implemented"},
+ {ERR_REASON(HWCRHK_R_DSO_FAILURE), "dso failure"},
+ {ERR_REASON(HWCRHK_R_MISSING_KEY_COMPONENTS), "missing key components"},
+ {ERR_REASON(HWCRHK_R_NOT_INITIALISED), "not initialised"},
+ {ERR_REASON(HWCRHK_R_NOT_LOADED), "not loaded"},
+ {ERR_REASON(HWCRHK_R_NO_CALLBACK), "no callback"},
+ {ERR_REASON(HWCRHK_R_NO_KEY), "no key"},
+ {ERR_REASON(HWCRHK_R_PRIVATE_KEY_ALGORITHMS_DISABLED),
+ "private key algorithms disabled"},
+ {ERR_REASON(HWCRHK_R_REQUEST_FAILED), "request failed"},
+ {ERR_REASON(HWCRHK_R_REQUEST_FALLBACK), "request fallback"},
+ {ERR_REASON(HWCRHK_R_UNIT_FAILURE), "unit failure"},
+ {0, NULL}
+};
+
+#endif
+
+#ifdef HWCRHK_LIB_NAME
+static ERR_STRING_DATA HWCRHK_lib_name[] = {
+ {0, HWCRHK_LIB_NAME},
+ {0, NULL}
+};
+#endif
+
+static int HWCRHK_lib_error_code = 0;
+static int HWCRHK_error_init = 1;
+
+static void ERR_load_HWCRHK_strings(void)
+{
+ if (HWCRHK_lib_error_code == 0)
+ HWCRHK_lib_error_code = ERR_get_next_error_library();
+
+ if (HWCRHK_error_init) {
+ HWCRHK_error_init = 0;
+#ifndef OPENSSL_NO_ERR
+ ERR_load_strings(HWCRHK_lib_error_code, HWCRHK_str_functs);
+ ERR_load_strings(HWCRHK_lib_error_code, HWCRHK_str_reasons);
+#endif
+
+#ifdef HWCRHK_LIB_NAME
+ HWCRHK_lib_name->error = ERR_PACK(HWCRHK_lib_error_code, 0, 0);
+ ERR_load_strings(0, HWCRHK_lib_name);
+#endif
+ }
+}
+
+static void ERR_unload_HWCRHK_strings(void)
+{
+ if (HWCRHK_error_init == 0) {
+#ifndef OPENSSL_NO_ERR
+ ERR_unload_strings(HWCRHK_lib_error_code, HWCRHK_str_functs);
+ ERR_unload_strings(HWCRHK_lib_error_code, HWCRHK_str_reasons);
+#endif
+
+#ifdef HWCRHK_LIB_NAME
+ ERR_unload_strings(0, HWCRHK_lib_name);
+#endif
+ HWCRHK_error_init = 1;
+ }
+}
+
+static void ERR_HWCRHK_error(int function, int reason, char *file, int line)
+{
+ if (HWCRHK_lib_error_code == 0)
+ HWCRHK_lib_error_code = ERR_get_next_error_library();
+ ERR_PUT_error(HWCRHK_lib_error_code, function, reason, file, line);
+}
--- /dev/null
+/*
+ * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+/*
+ * NOTE: this file was auto generated by the mkerr.pl script: any changes
+ * made to it will be overwritten when the script next updates this file,
+ * only reason strings will be preserved.
+ */
+
+#ifndef HEADER_HWCRHK_ERR_H
+# define HEADER_HWCRHK_ERR_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* BEGIN ERROR CODES */
+static void ERR_load_HWCRHK_strings(void);
+static void ERR_unload_HWCRHK_strings(void);
+static void ERR_HWCRHK_error(int function, int reason, char *file, int line);
+# define HWCRHKerr(f,r) ERR_HWCRHK_error((f),(r),OPENSSL_FILE,OPENSSL_LINE)
+
+/* Error codes for the HWCRHK functions. */
+
+/* Function codes. */
+# define HWCRHK_F_HWCRHK_CTRL 100
+# define HWCRHK_F_HWCRHK_FINISH 101
+# define HWCRHK_F_HWCRHK_GET_PASS 102
+# define HWCRHK_F_HWCRHK_INIT 103
+# define HWCRHK_F_HWCRHK_INSERT_CARD 104
+# define HWCRHK_F_HWCRHK_LOAD_PRIVKEY 105
+# define HWCRHK_F_HWCRHK_LOAD_PUBKEY 106
+# define HWCRHK_F_HWCRHK_MOD_EXP 107
+# define HWCRHK_F_HWCRHK_RAND_BYTES 108
+# define HWCRHK_F_HWCRHK_RSA_MOD_EXP 109
+# define HWCRHK_F_BIND_HELPER 110
+# define HWCRHK_F_HWCRHK_MUTEX_INIT 111
+
+/* Reason codes. */
+# define HWCRHK_R_ALREADY_LOADED 100
+# define HWCRHK_R_BIO_WAS_FREED 101
+# define HWCRHK_R_CHIL_ERROR 102
+# define HWCRHK_R_CTRL_COMMAND_NOT_IMPLEMENTED 103
+# define HWCRHK_R_DSO_FAILURE 104
+# define HWCRHK_R_MISSING_KEY_COMPONENTS 105
+# define HWCRHK_R_NOT_INITIALISED 106
+# define HWCRHK_R_NOT_LOADED 107
+# define HWCRHK_R_NO_CALLBACK 108
+# define HWCRHK_R_NO_KEY 109
+# define HWCRHK_R_PRIVATE_KEY_ALGORITHMS_DISABLED 110
+# define HWCRHK_R_REQUEST_FAILED 111
+# define HWCRHK_R_REQUEST_FALLBACK 112
+# define HWCRHK_R_UNIT_FAILURE 113
+
+#ifdef __cplusplus
+}
+#endif
+#endif
+++ /dev/null
-/*
- * Copyright 2000-2016 The OpenSSL Project Authors. All Rights Reserved.
- *
- * Licensed under the OpenSSL license (the "License"). You may not use
- * this file except in compliance with the License. You can obtain a copy
- * in the file LICENSE in the source distribution or at
- * https://www.openssl.org/source/license.html
- */
-
-#include <stdio.h>
-#include <string.h>
-#include <openssl/crypto.h>
-#include <openssl/pem.h>
-#include "internal/dso.h"
-#include <openssl/engine.h>
-#include <openssl/ui.h>
-#include <openssl/rand.h>
-#ifndef OPENSSL_NO_RSA
-# include <openssl/rsa.h>
-#endif
-#ifndef OPENSSL_NO_DH
-# include <openssl/dh.h>
-#endif
-#include <openssl/bn.h>
-
-#ifndef OPENSSL_NO_HW
-# ifndef OPENSSL_NO_HW_CHIL
-
-/*-
- * 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.
- *
- * The hwcryptohook.h included here is from May 2000.
- * [Richard Levitte]
- */
-# ifdef FLAT_INC
-# include "hwcryptohook.h"
-# else
-# include "vendor_defns/hwcryptohook.h"
-# endif
-
-# define HWCRHK_LIB_NAME "CHIL engine"
-# include "e_chil_err.c"
-
-static CRYPTO_RWLOCK *chil_lock;
-
-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));
-
-/* 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 *);
-
-/* BIGNUM stuff */
-static int hwcrhk_mod_exp(BIGNUM *r, const BIGNUM *a, const BIGNUM *p,
- const BIGNUM *m, BN_CTX *ctx);
-
-# ifndef OPENSSL_NO_RSA
-/* RSA stuff */
-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);
-static int hwcrhk_rsa_finish(RSA *rsa);
-# endif
-
-# 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
-
-/* RAND stuff */
-static int hwcrhk_rand_bytes(unsigned char *buf, int num);
-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);
-static EVP_PKEY *hwcrhk_load_pubkey(ENGINE *eng, const char *key_id,
- 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);
-static int hwcrhk_get_pass(const char *prompt_info,
- 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)
-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}
-};
-
-# 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
-
-# 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,
-};
-
-/* 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
-/* Compatibility hack, the dynamic library uses this form in the path */
-static const char *engine_hwcrhk_id_alt = "ncipher";
-# 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 {
- CRYPTO_RWLOCK *lock;
-};
-
-/*
- * 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) \
- {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.
- */
-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 */
-};
-
-/* Now, to our own code */
-
-/*
- * 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
-
- chil_lock = CRYPTO_THREAD_lock_new();
- if (chil_lock == NULL) {
- HWCRHKerr(HWCRHK_F_BIND_HELPER, ERR_R_MALLOC_FAILURE);
- return 0;
- }
-
- 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_OpenSSL()" 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_OpenSSL();
- 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 == NULL)
- 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.
- */
-static DSO *hwcrhk_dso = NULL;
-static HWCryptoHook_ContextHandle hwcrhk_context = 0;
-# 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
-static HWCryptoHook_RSA_t *p_hwcrhk_RSA = NULL;
-# endif
-static HWCryptoHook_RandomBytes_t *p_hwcrhk_RandomBytes = NULL;
-# 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
-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)
-{
- OPENSSL_free(HWCRHK_LIBNAME);
- HWCRHK_LIBNAME = NULL;
-}
-
-static const char *get_HWCRHK_LIBNAME(void)
-{
- if (HWCRHK_LIBNAME)
- return HWCRHK_LIBNAME;
- return "nfhwcrhk";
-}
-
-static long set_HWCRHK_LIBNAME(const char *name)
-{
- free_HWCRHK_LIBNAME();
- return (((HWCRHK_LIBNAME = OPENSSL_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
-static const char *n_hwcrhk_RSA = "HWCryptoHook_RSA";
-# endif
-static const char *n_hwcrhk_RandomBytes = "HWCryptoHook_RandomBytes";
-# 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
-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.
- */
-
-/* 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;
-}
-
-/* similarly to release one. */
-static void release_context(HWCryptoHook_ContextHandle hac)
-{
- p_hwcrhk_Finish(hac);
-}
-
-/* Destructor (complements the "ENGINE_chil()" constructor) */
-static int hwcrhk_destroy(ENGINE *e)
-{
- free_HWCRHK_LIBNAME();
- ERR_unload_HWCRHK_strings();
- CRYPTO_THREAD_lock_free(chil_lock);
- 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;
- }
-
-#define BINDIT(t, name) (t *)DSO_bind_func(hwcrhk_dso, name)
- if ((p1 = BINDIT(HWCryptoHook_Init_t, n_hwcrhk_Init)) == NULL
- || (p2 = BINDIT(HWCryptoHook_Finish_t, n_hwcrhk_Finish)) == NULL
- || (p3 = BINDIT(HWCryptoHook_ModExp_t, n_hwcrhk_ModExp)) == NULL
-# ifndef OPENSSL_NO_RSA
- || (p4 = BINDIT(HWCryptoHook_RSA_t, n_hwcrhk_RSA)) == NULL
- || (p5 = BINDIT(HWCryptoHook_RSALoadKey_t, n_hwcrhk_RSALoadKey)) == NULL
- || (p6 = BINDIT(HWCryptoHook_RSAGetPublicKey_t, n_hwcrhk_RSAGetPublicKey)) == NULL
- || (p7 = BINDIT(HWCryptoHook_RSAUnloadKey_t, n_hwcrhk_RSAUnloadKey)) == NULL
-# endif
- || (p8 = BINDIT(HWCryptoHook_RandomBytes_t, n_hwcrhk_RandomBytes)) == NULL
- || (p9 = BINDIT(HWCryptoHook_ModExpCRT_t, n_hwcrhk_ModExpCRT)) == NULL) {
- 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) {
- 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:
- 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;
- }
- err:
- 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_THREAD_write_lock(chil_lock);
- BIO_free(logstream);
- logstream = NULL;
- if (BIO_up_ref(bio))
- logstream = bio;
- else
- HWCRHKerr(HWCRHK_F_HWCRHK_CTRL, HWCRHK_R_BIO_WAS_FREED);
- }
- CRYPTO_THREAD_unlock(chil_lock);
- break;
- case ENGINE_CTRL_SET_PASSWORD_CALLBACK:
- CRYPTO_THREAD_write_lock(chil_lock);
- password_context.password_callback = (pem_password_cb *)f;
- CRYPTO_THREAD_unlock(chil_lock);
- break;
- case ENGINE_CTRL_SET_USER_INTERFACE:
- case HWCRHK_CMD_SET_USER_INTERFACE:
- CRYPTO_THREAD_write_lock(chil_lock);
- password_context.ui_method = (UI_METHOD *)p;
- CRYPTO_THREAD_unlock(chil_lock);
- break;
- case ENGINE_CTRL_SET_CALLBACK_DATA:
- case HWCRHK_CMD_SET_CALLBACK_DATA:
- CRYPTO_THREAD_write_lock(chil_lock);
- password_context.callback_data = p;
- CRYPTO_THREAD_unlock(chil_lock);
- 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_THREAD_write_lock(chil_lock);
- if (i)
- hwcrhk_globals.flags |= HWCryptoHook_InitFlags_SimpleForkCheck;
- else
- hwcrhk_globals.flags &= ~HWCryptoHook_InitFlags_SimpleForkCheck;
- CRYPTO_THREAD_unlock(chil_lock);
- 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_THREAD_write_lock(chil_lock);
- disable_mutex_callbacks = 1;
- CRYPTO_THREAD_unlock(chil_lock);
- break;
- case HWCRHK_CMD_THREAD_LOCKING:
- CRYPTO_THREAD_write_lock(chil_lock);
- disable_mutex_callbacks = ((i == 0) ? 0 : 1);
- CRYPTO_THREAD_unlock(chil_lock);
- 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(*hptr));
- if (hptr == NULL) {
- 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();
- if (res == NULL) {
- HWCRHKerr(HWCRHK_F_HWCRHK_LOAD_PRIVKEY, HWCRHK_R_CHIL_ERROR);
- goto err;
- }
- EVP_PKEY_assign_RSA(res, rtmp);
-# endif
-
- if (res == NULL)
- HWCRHKerr(HWCRHK_F_HWCRHK_LOAD_PRIVKEY,
- HWCRHK_R_PRIVATE_KEY_ALGORITHMS_DISABLED);
-
- return res;
- err:
-# ifndef OPENSSL_NO_RSA
- 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_THREAD_write_lock(chil_lock);
- 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_THREAD_unlock(chil_lock);
- RSA_free(rsa);
- }
- break;
-# endif
- default:
- HWCRHKerr(HWCRHK_F_HWCRHK_LOAD_PUBKEY,
- HWCRHK_R_CTRL_COMMAND_NOT_IMPLEMENTED);
- goto err;
- }
-
- return res;
- err:
- 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
-
-# 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);
-}
-
-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;
-}
-
-# 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
-
-/* 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;
- err:
- return to_return;
-}
-
-static int hwcrhk_rand_status(void)
-{
- return 1;
-}
-
-/*
- * 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->lock = CRYPTO_THREAD_lock_new();
- if (mt->lock == NULL) {
- HWCRHKerr(HWCRHK_F_HWCRHK_MUTEX_INIT, ERR_R_MALLOC_FAILURE);
- return 1; /* failure */
- }
- return 0; /* success */
-}
-
-static int hwcrhk_mutex_lock(HWCryptoHook_Mutex * mt)
-{
- CRYPTO_THREAD_write_lock(mt->lock);
- return 0;
-}
-
-static void hwcrhk_mutex_unlock(HWCryptoHook_Mutex * mt)
-{
- CRYPTO_THREAD_unlock(mt->lock);
-}
-
-static void hwcrhk_mutex_destroy(HWCryptoHook_Mutex * mt)
-{
- CRYPTO_THREAD_lock_free(mt->lock);
-}
-
-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);
- }
- 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 = '\0';
- 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;
-
- if (logstr)
- lstream = *(BIO **)logstr;
- if (lstream) {
- BIO_printf(lstream, "%s\n", message);
- }
-}
-
-/*
- * 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 */
-# endif /* !OPENSSL_NO_HW_CHIL */
-#endif /* !OPENSSL_NO_HW */
+++ /dev/null
-L HWCRHK e_chil_err.h e_chil_err.c
+++ /dev/null
-/*
- * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
- *
- * Licensed under the OpenSSL license (the "License"). You may not use
- * this file except in compliance with the License. You can obtain a copy
- * in the file LICENSE in the source distribution or at
- * https://www.openssl.org/source/license.html
- */
-
-/*
- * NOTE: this file was auto generated by the mkerr.pl script: any changes
- * made to it will be overwritten when the script next updates this file,
- * only reason strings will be preserved.
- */
-
-#include <stdio.h>
-#include <openssl/err.h>
-#include "e_chil_err.h"
-
-/* BEGIN ERROR CODES */
-#ifndef OPENSSL_NO_ERR
-
-# define ERR_FUNC(func) ERR_PACK(0,func,0)
-# define ERR_REASON(reason) ERR_PACK(0,0,reason)
-
-static ERR_STRING_DATA HWCRHK_str_functs[] = {
- {ERR_FUNC(HWCRHK_F_HWCRHK_CTRL), "HWCRHK_CTRL"},
- {ERR_FUNC(HWCRHK_F_HWCRHK_FINISH), "HWCRHK_FINISH"},
- {ERR_FUNC(HWCRHK_F_HWCRHK_GET_PASS), "HWCRHK_GET_PASS"},
- {ERR_FUNC(HWCRHK_F_HWCRHK_INIT), "HWCRHK_INIT"},
- {ERR_FUNC(HWCRHK_F_HWCRHK_INSERT_CARD), "HWCRHK_INSERT_CARD"},
- {ERR_FUNC(HWCRHK_F_HWCRHK_LOAD_PRIVKEY), "HWCRHK_LOAD_PRIVKEY"},
- {ERR_FUNC(HWCRHK_F_HWCRHK_LOAD_PUBKEY), "HWCRHK_LOAD_PUBKEY"},
- {ERR_FUNC(HWCRHK_F_HWCRHK_MOD_EXP), "HWCRHK_MOD_EXP"},
- {ERR_FUNC(HWCRHK_F_HWCRHK_RAND_BYTES), "HWCRHK_RAND_BYTES"},
- {ERR_FUNC(HWCRHK_F_HWCRHK_RSA_MOD_EXP), "HWCRHK_RSA_MOD_EXP"},
- {0, NULL}
-};
-
-static ERR_STRING_DATA HWCRHK_str_reasons[] = {
- {ERR_REASON(HWCRHK_R_ALREADY_LOADED), "already loaded"},
- {ERR_REASON(HWCRHK_R_BIO_WAS_FREED), "bio was freed"},
- {ERR_REASON(HWCRHK_R_CHIL_ERROR), "chil error"},
- {ERR_REASON(HWCRHK_R_CTRL_COMMAND_NOT_IMPLEMENTED),
- "ctrl command not implemented"},
- {ERR_REASON(HWCRHK_R_DSO_FAILURE), "dso failure"},
- {ERR_REASON(HWCRHK_R_MISSING_KEY_COMPONENTS), "missing key components"},
- {ERR_REASON(HWCRHK_R_NOT_INITIALISED), "not initialised"},
- {ERR_REASON(HWCRHK_R_NOT_LOADED), "not loaded"},
- {ERR_REASON(HWCRHK_R_NO_CALLBACK), "no callback"},
- {ERR_REASON(HWCRHK_R_NO_KEY), "no key"},
- {ERR_REASON(HWCRHK_R_PRIVATE_KEY_ALGORITHMS_DISABLED),
- "private key algorithms disabled"},
- {ERR_REASON(HWCRHK_R_REQUEST_FAILED), "request failed"},
- {ERR_REASON(HWCRHK_R_REQUEST_FALLBACK), "request fallback"},
- {ERR_REASON(HWCRHK_R_UNIT_FAILURE), "unit failure"},
- {0, NULL}
-};
-
-#endif
-
-#ifdef HWCRHK_LIB_NAME
-static ERR_STRING_DATA HWCRHK_lib_name[] = {
- {0, HWCRHK_LIB_NAME},
- {0, NULL}
-};
-#endif
-
-static int HWCRHK_lib_error_code = 0;
-static int HWCRHK_error_init = 1;
-
-static void ERR_load_HWCRHK_strings(void)
-{
- if (HWCRHK_lib_error_code == 0)
- HWCRHK_lib_error_code = ERR_get_next_error_library();
-
- if (HWCRHK_error_init) {
- HWCRHK_error_init = 0;
-#ifndef OPENSSL_NO_ERR
- ERR_load_strings(HWCRHK_lib_error_code, HWCRHK_str_functs);
- ERR_load_strings(HWCRHK_lib_error_code, HWCRHK_str_reasons);
-#endif
-
-#ifdef HWCRHK_LIB_NAME
- HWCRHK_lib_name->error = ERR_PACK(HWCRHK_lib_error_code, 0, 0);
- ERR_load_strings(0, HWCRHK_lib_name);
-#endif
- }
-}
-
-static void ERR_unload_HWCRHK_strings(void)
-{
- if (HWCRHK_error_init == 0) {
-#ifndef OPENSSL_NO_ERR
- ERR_unload_strings(HWCRHK_lib_error_code, HWCRHK_str_functs);
- ERR_unload_strings(HWCRHK_lib_error_code, HWCRHK_str_reasons);
-#endif
-
-#ifdef HWCRHK_LIB_NAME
- ERR_unload_strings(0, HWCRHK_lib_name);
-#endif
- HWCRHK_error_init = 1;
- }
-}
-
-static void ERR_HWCRHK_error(int function, int reason, char *file, int line)
-{
- if (HWCRHK_lib_error_code == 0)
- HWCRHK_lib_error_code = ERR_get_next_error_library();
- ERR_PUT_error(HWCRHK_lib_error_code, function, reason, file, line);
-}
+++ /dev/null
-/*
- * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
- *
- * Licensed under the OpenSSL license (the "License"). You may not use
- * this file except in compliance with the License. You can obtain a copy
- * in the file LICENSE in the source distribution or at
- * https://www.openssl.org/source/license.html
- */
-
-/*
- * NOTE: this file was auto generated by the mkerr.pl script: any changes
- * made to it will be overwritten when the script next updates this file,
- * only reason strings will be preserved.
- */
-
-#ifndef HEADER_HWCRHK_ERR_H
-# define HEADER_HWCRHK_ERR_H
-
-#ifdef __cplusplus
-extern "C" {
-#endif
-
-/* BEGIN ERROR CODES */
-static void ERR_load_HWCRHK_strings(void);
-static void ERR_unload_HWCRHK_strings(void);
-static void ERR_HWCRHK_error(int function, int reason, char *file, int line);
-# define HWCRHKerr(f,r) ERR_HWCRHK_error((f),(r),OPENSSL_FILE,OPENSSL_LINE)
-
-/* Error codes for the HWCRHK functions. */
-
-/* Function codes. */
-# define HWCRHK_F_HWCRHK_CTRL 100
-# define HWCRHK_F_HWCRHK_FINISH 101
-# define HWCRHK_F_HWCRHK_GET_PASS 102
-# define HWCRHK_F_HWCRHK_INIT 103
-# define HWCRHK_F_HWCRHK_INSERT_CARD 104
-# define HWCRHK_F_HWCRHK_LOAD_PRIVKEY 105
-# define HWCRHK_F_HWCRHK_LOAD_PUBKEY 106
-# define HWCRHK_F_HWCRHK_MOD_EXP 107
-# define HWCRHK_F_HWCRHK_RAND_BYTES 108
-# define HWCRHK_F_HWCRHK_RSA_MOD_EXP 109
-# define HWCRHK_F_BIND_HELPER 110
-# define HWCRHK_F_HWCRHK_MUTEX_INIT 111
-
-/* Reason codes. */
-# define HWCRHK_R_ALREADY_LOADED 100
-# define HWCRHK_R_BIO_WAS_FREED 101
-# define HWCRHK_R_CHIL_ERROR 102
-# define HWCRHK_R_CTRL_COMMAND_NOT_IMPLEMENTED 103
-# define HWCRHK_R_DSO_FAILURE 104
-# define HWCRHK_R_MISSING_KEY_COMPONENTS 105
-# define HWCRHK_R_NOT_INITIALISED 106
-# define HWCRHK_R_NOT_LOADED 107
-# define HWCRHK_R_NO_CALLBACK 108
-# define HWCRHK_R_NO_KEY 109
-# define HWCRHK_R_PRIVATE_KEY_ALGORITHMS_DISABLED 110
-# define HWCRHK_R_REQUEST_FAILED 111
-# define HWCRHK_R_REQUEST_FALLBACK 112
-# define HWCRHK_R_UNIT_FAILURE 113
-
-#ifdef __cplusplus
-}
-#endif
-#endif
projects / oweals / openssl.git / commitdiff