ssl.cpp

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            strncat(name, "/", 1);
            strncat(name, entry->d_name, HALF_PATH);
            if (stat(name, &buf) < 0) return SSL_BAD_STAT;
     
            if (S_ISREG(buf.st_mode))
                ret = read_file(ctx, name, SSL_FILETYPE_PEM, CA);
        }

        closedir(dir);

#endif
    }

    return ret;
}


int SSL_CTX_set_default_verify_paths(SSL_CTX* /*ctx*/)
{
    // TODO: figure out way to set/store default path, then call load_verify
    return SSL_NOT_IMPLEMENTED;
}


int SSL_CTX_set_session_id_context(SSL_CTX*, const unsigned char*,
                                    unsigned int)
{
    // No application specific context needed for yaSSL
    return SSL_SUCCESS;
}


int SSL_CTX_check_private_key(SSL_CTX* /*ctx*/)
{
    // TODO: check private against public for RSA match
    return SSL_NOT_IMPLEMENTED;
}


// TODO: all session stats
long SSL_CTX_sess_accept(SSL_CTX* ctx)
{
    return ctx->GetStats().accept_;
}


long SSL_CTX_sess_connect(SSL_CTX* ctx)
{
    return ctx->GetStats().connect_;
}


long SSL_CTX_sess_accept_good(SSL_CTX* ctx)
{
    return ctx->GetStats().acceptGood_;
}


long SSL_CTX_sess_connect_good(SSL_CTX* ctx)
{
    return ctx->GetStats().connectGood_;
}


long SSL_CTX_sess_accept_renegotiate(SSL_CTX* ctx)
{
    return ctx->GetStats().acceptRenegotiate_;
}


long SSL_CTX_sess_connect_renegotiate(SSL_CTX* ctx)
{
    return ctx->GetStats().connectRenegotiate_;
}


long SSL_CTX_sess_hits(SSL_CTX* ctx)
{
    return ctx->GetStats().hits_;
}


long SSL_CTX_sess_cb_hits(SSL_CTX* ctx)
{
    return ctx->GetStats().cbHits_;
}


long SSL_CTX_sess_cache_full(SSL_CTX* ctx)
{
    return ctx->GetStats().cacheFull_;
}


long SSL_CTX_sess_misses(SSL_CTX* ctx)
{
    return ctx->GetStats().misses_;
}


long SSL_CTX_sess_timeouts(SSL_CTX* ctx)
{
    return ctx->GetStats().timeouts_;
}


long SSL_CTX_sess_number(SSL_CTX* ctx)
{
    return ctx->GetStats().number_;
}


long SSL_CTX_sess_get_cache_size(SSL_CTX* ctx)
{
    return ctx->GetStats().getCacheSize_;
}
// end session stats TODO:


int SSL_CTX_get_verify_mode(SSL_CTX* ctx)
{
    return ctx->GetStats().verifyMode_;
}


int SSL_get_verify_mode(SSL* ssl)
{
    return ssl->getSecurity().GetContext()->GetStats().verifyMode_;
}


int SSL_CTX_get_verify_depth(SSL_CTX* ctx)
{
    return ctx->GetStats().verifyDepth_;
}


int SSL_get_verify_depth(SSL* ssl)
{
    return ssl->getSecurity().GetContext()->GetStats().verifyDepth_;
}


long SSL_CTX_set_options(SSL_CTX*, long)
{
    // TDOD:
    return SSL_SUCCESS;
}


void SSL_CTX_set_info_callback(SSL_CTX*, void (*)())
{
    // TDOD:
}


void OpenSSL_add_all_algorithms()  // compatibility only
{}


DH* DH_new(void)
{
    DH* dh = NEW_YS DH;
    if (dh)
        dh->p = dh->g = 0;
    return dh;
}


void DH_free(DH* dh)
{
    ysDelete(dh->g);
    ysDelete(dh->p);
    ysDelete(dh);
}


// convert positive big-endian num of length sz into retVal, which may need to 
// be created
BIGNUM* BN_bin2bn(const unsigned char* num, int sz, BIGNUM* retVal)
{
    using mySTL::auto_ptr;
    bool created = false;
    auto_ptr<BIGNUM> bn(ysDelete);

    if (!retVal) {
        created = true;
        bn.reset(NEW_YS BIGNUM);
        retVal = bn.get();
    }

    retVal->assign(num, sz);

    if (created)
        return bn.release();
    else
        return retVal;
}


unsigned long ERR_get_error_line_data(const char**, int*, const char**, int *)
{
    //return SSL_NOT_IMPLEMENTED;
    return 0;
}


void ERR_print_errors_fp(FILE* /*fp*/)
{
    // need ssl access to implement TODO:
    //fprintf(fp, "%s", ssl.get_states().errorString_.c_str());
}


char* ERR_error_string(unsigned long errNumber, char* buffer)
{
    static char* msg = "Please supply a buffer for error string";

    if (buffer) {
        SetErrorString(YasslError(errNumber), buffer);
        return buffer;
    }

    return msg;
}


const char* X509_verify_cert_error_string(long /* error */)
{
    // TODO:
    static const char* msg = "Not Implemented";
    return msg;
}


const EVP_MD* EVP_md5(void)
{
    // TODO: FIX add to some list for destruction
    return NEW_YS MD5;
}


const EVP_CIPHER* EVP_des_ede3_cbc(void)
{
    // TODO: FIX add to some list for destruction
    return NEW_YS DES_EDE;
}


int EVP_BytesToKey(const EVP_CIPHER* type, const EVP_MD* md, const byte* salt,
                   const byte* data, int sz, int count, byte* key, byte* iv)
{
    EVP_MD* myMD = const_cast<EVP_MD*>(md);
    uint digestSz = myMD->get_digestSize();
    byte digest[SHA_LEN];                   // max size

    int keyLen    = type->get_keySize();
    int ivLen     = type->get_ivSize();
    int keyLeft   = keyLen;
    int ivLeft    = ivLen;
    int keyOutput = 0;

    while (keyOutput < (keyLen + ivLen)) {
        int digestLeft = digestSz;
        // D_(i - 1)
        if (keyOutput)                      // first time D_0 is empty
            myMD->update(digest, digestSz);
        // data
        myMD->update(data, sz);
        // salt
        if (salt)
            myMD->update(salt, EVP_SALT_SZ);
        myMD->get_digest(digest);
        // count
        for (int j = 1; j < count; j++) {
            myMD->update(digest, digestSz);
            myMD->get_digest(digest);
        }

        if (keyLeft) {
            int store = min(keyLeft, static_cast<int>(digestSz));
            memcpy(&key[keyLen - keyLeft], digest, store);

            keyOutput  += store;
            keyLeft    -= store;
            digestLeft -= store;
        }

        if (ivLeft && digestLeft) {
            int store = min(ivLeft, digestLeft);
            memcpy(&iv[ivLen - ivLeft], digest, store);

            keyOutput += store;
            ivLeft    -= store;
        }
    }
    assert(keyOutput == (keyLen + ivLen));
    return keyOutput;
}



void DES_set_key_unchecked(const_DES_cblock* key, DES_key_schedule* schedule)
{
    memcpy(schedule, key, sizeof(const_DES_cblock));
}


void DES_ede3_cbc_encrypt(const byte* input, byte* output, long sz,
                          DES_key_schedule* ks1, DES_key_schedule* ks2,
                          DES_key_schedule* ks3, DES_cblock* ivec, int enc)
{
    DES_EDE des;
    byte key[DES_EDE_KEY_SZ];

    memcpy(key, *ks1, DES_BLOCK);
    memcpy(&key[DES_BLOCK], *ks2, DES_BLOCK);
    memcpy(&key[DES_BLOCK * 2], *ks3, DES_BLOCK);

    if (enc) {
        des.set_encryptKey(key, *ivec);
        des.encrypt(output, input, sz);
    }
    else {
        des.set_decryptKey(key, *ivec);
        des.decrypt(output, input, sz);
    }
}


    // functions for stunnel

    void RAND_screen()
    {
        // TODO:
    }


    const char* RAND_file_name(char*, size_t)
    {
        // TODO:
        return 0;
    }


    int RAND_write_file(const char*)
    {
        // TODO:
        return 0;
    }


    int RAND_load_file(const char*, long)
    {
        // TODO:
        return 0;
    }


    void RSA_free(RSA*)
    {
        // TODO:
    }


    RSA* RSA_generate_key(int, unsigned long, void(*)(int, int, void*), void*)
    {
        //  TODO:
        return 0;
    }


    int X509_LOOKUP_add_dir(X509_LOOKUP*, const char*, long)
    {
        // TODO:
        return SSL_SUCCESS;
    }


    int X509_LOOKUP_load_file(X509_LOOKUP*, const char*, long)
    {
        // TODO:
        return SSL_SUCCESS;
    }


    X509_LOOKUP_METHOD* X509_LOOKUP_hash_dir(void)
    {
        // TODO:
        return 0;
    }


    X509_LOOKUP_METHOD* X509_LOOKUP_file(void)
    {
        // TODO:
        return 0;
    }


    X509_LOOKUP* X509_STORE_add_lookup(X509_STORE*, X509_LOOKUP_METHOD*)
    {
        // TODO:
        return 0;
    }


    int X509_STORE_get_by_subject(X509_STORE_CTX*, int, X509_NAME*, X509_OBJECT*)
    {
        // TODO:
        return SSL_SUCCESS;
    }


    X509_STORE* X509_STORE_new(void)
    {
        // TODO:
        return 0;
    }

    char* SSL_alert_type_string_long(int)
    {
        // TODO:
        return 0;
    }


    char* SSL_alert_desc_string_long(int)
    {
        // TODO:
        return 0;
    }


    char* SSL_state_string_long(SSL*)
    {
        // TODO:
        return 0;
    }


    void SSL_CTX_set_tmp_rsa_callback(SSL_CTX*, RSA*(*)(SSL*, int, int))
    {
        // TDOD:
    }


    long SSL_CTX_set_session_cache_mode(SSL_CTX*, long)
    {
        // TDOD:
        return SSL_SUCCESS;
    }


    long SSL_CTX_set_timeout(SSL_CTX*, long)
    {
        // TDOD:
        return SSL_SUCCESS;
    }


    int SSL_CTX_use_certificate_chain_file(SSL_CTX*, const char*)
    {
        // TDOD:
        return SSL_SUCCESS;
    }


    void SSL_CTX_set_default_passwd_cb(SSL_CTX*, pem_password_cb)
    {
        // TDOD:
    }


    int SSL_CTX_use_RSAPrivateKey_file(SSL_CTX*, const char*, int)
    {
        // TDOD:
        return SSL_SUCCESS;
    }


    int SSL_set_rfd(SSL*, int)
    {
        return SSL_SUCCESS; // TODO:
    }


    int SSL_set_wfd(SSL*, int)
    {
        return SSL_SUCCESS; // TODO:
    }


    int SSL_pending(SSL*)
    {
        return SSL_SUCCESS; // TODO:
    }


    int SSL_want_read(SSL*)
    {
        return 0; // TODO:
    }


    int SSL_want_write(SSL*)
    {
        return 0; // TODO:
    }


    void SSL_set_shutdown(SSL*, int)
    {
        // TODO:
    }


    SSL_CIPHER* SSL_get_current_cipher(SSL*)
    {
        // TODO:
        return 0;
    }


    char* SSL_CIPHER_description(SSL_CIPHER*, char*, int)
    {
        // TODO:
        return 0;
    }


    void SSLeay_add_ssl_algorithms()  // compatibility only
    {}


    void ERR_remove_state(unsigned long)
    {
        // TODO:
    }


    int ERR_GET_REASON(int l)
    {
        return l & 0xfff;
    }


    unsigned long ERR_peek_error()
    {
        return 0;  // TODO:
    }


    unsigned long ERR_get_error()
    {
        return ERR_peek_error();
    }


    // end stunnel needs


} // namespace