ext/openssl/ossl_pkey.h

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/*
 * $Id: ossl_pkey.h 33634 2011-11-04 07:19:23Z nobu $
 * 'OpenSSL for Ruby' project
 * Copyright (C) 2001 Michal Rokos <m.rokos@sh.cvut.cz>
 * All rights reserved.
 */
/*
 * This program is licenced under the same licence as Ruby.
 * (See the file 'LICENCE'.)
 */
#if !defined(_OSSL_PKEY_H_)
#define _OSSL_PKEY_H_

extern VALUE mPKey;
extern VALUE cPKey;
extern VALUE ePKeyError;
extern ID id_private_q;

#define OSSL_PKEY_SET_PRIVATE(obj) rb_iv_set((obj), "private", Qtrue)
#define OSSL_PKEY_SET_PUBLIC(obj)  rb_iv_set((obj), "private", Qfalse)
#define OSSL_PKEY_IS_PRIVATE(obj)  (rb_iv_get((obj), "private") == Qtrue)

#define WrapPKey(klass, obj, pkey) do { \
    if (!(pkey)) { \
        rb_raise(rb_eRuntimeError, "PKEY wasn't initialized!"); \
    } \
    (obj) = Data_Wrap_Struct((klass), 0, EVP_PKEY_free, (pkey)); \
    OSSL_PKEY_SET_PUBLIC(obj); \
} while (0)
#define GetPKey(obj, pkey) do {\
    Data_Get_Struct((obj), EVP_PKEY, (pkey));\
    if (!(pkey)) { \
        rb_raise(rb_eRuntimeError, "PKEY wasn't initialized!");\
    } \
} while (0)
#define SafeGetPKey(obj, pkey) do { \
    OSSL_Check_Kind((obj), cPKey); \
    GetPKey((obj), (pkey)); \
} while (0)

void ossl_generate_cb(int, int, void *);
#define HAVE_BN_GENCB defined(HAVE_RSA_GENERATE_KEY_EX) || defined(HAVE_DH_GENERATE_PARAMETERS_EX) || defined(HAVE_DSA_GENERATE_PARAMETERS_EX)
#if HAVE_BN_GENCB
struct ossl_generate_cb_arg {
    int yield;
    int stop;
    int state;
};
int ossl_generate_cb_2(int p, int n, BN_GENCB *cb);
void ossl_generate_cb_stop(void *ptr);
#endif

VALUE ossl_pkey_new(EVP_PKEY *);
VALUE ossl_pkey_new_from_file(VALUE);
EVP_PKEY *GetPKeyPtr(VALUE);
EVP_PKEY *DupPKeyPtr(VALUE);
EVP_PKEY *GetPrivPKeyPtr(VALUE);
EVP_PKEY *DupPrivPKeyPtr(VALUE);
void Init_ossl_pkey(void);

/*
 * RSA
 */
extern VALUE cRSA;
extern VALUE eRSAError;

VALUE ossl_rsa_new(EVP_PKEY *);
void Init_ossl_rsa(void);

/*
 * DSA
 */
extern VALUE cDSA;
extern VALUE eDSAError;

VALUE ossl_dsa_new(EVP_PKEY *);
void Init_ossl_dsa(void);

/*
 * DH
 */
extern VALUE cDH;
extern VALUE eDHError;
extern DH *OSSL_DEFAULT_DH_512;
extern DH *OSSL_DEFAULT_DH_1024;

VALUE ossl_dh_new(EVP_PKEY *);
void Init_ossl_dh(void);

/*
 * EC
 */
extern VALUE cEC;
extern VALUE eECError;
extern VALUE cEC_GROUP;
extern VALUE eEC_GROUP;
extern VALUE cEC_POINT;
extern VALUE eEC_POINT;
VALUE ossl_ec_new(EVP_PKEY *);
void Init_ossl_ec(void);


#define OSSL_PKEY_BN(keytype, name)                                     \
/*                                                                      \
 *  call-seq:                                                           \
 *     key.##name -> aBN                                                \
 */                                                                     \
static VALUE ossl_##keytype##_get_##name(VALUE self)                    \
{                                                                       \
        EVP_PKEY *pkey;                                                 \
        BIGNUM *bn;                                                     \
                                                                        \
        GetPKey(self, pkey);                                            \
        bn = pkey->pkey.keytype->name;                                  \
        if (bn == NULL)                                                 \
                return Qnil;                                            \
        return ossl_bn_new(bn);                                         \
}                                                                       \
/*                                                                      \
 *  call-seq:                                                           \
 *     key.##name = bn -> bn                                            \
 */                                                                     \
static VALUE ossl_##keytype##_set_##name(VALUE self, VALUE bignum)      \
{                                                                       \
        EVP_PKEY *pkey;                                                 \
        BIGNUM *bn;                                                     \
                                                                        \
        GetPKey(self, pkey);                                            \
        if (NIL_P(bignum)) {                                            \
                BN_clear_free(pkey->pkey.keytype->name);                \
                pkey->pkey.keytype->name = NULL;                        \
                return Qnil;                                            \
        }                                                               \
                                                                        \
        bn = GetBNPtr(bignum);                                          \
        if (pkey->pkey.keytype->name == NULL)                           \
                pkey->pkey.keytype->name = BN_new();                    \
        if (pkey->pkey.keytype->name == NULL)                           \
                ossl_raise(eBNError, NULL);                             \
        if (BN_copy(pkey->pkey.keytype->name, bn) == NULL)              \
                ossl_raise(eBNError, NULL);                             \
        return bignum;                                                  \
}

#define DEF_OSSL_PKEY_BN(class, keytype, name)                          \
do {                                                                    \
        rb_define_method((class), #name, ossl_##keytype##_get_##name, 0);       \
        rb_define_method((class), #name "=", ossl_##keytype##_set_##name, 1);\
} while (0)

#endif /* _OSSL_PKEY_H_ */

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