/* dh_asn1.c */
-/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
- * project 2000.
+/*
+ * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
+ * 2000.
*/
/* ====================================================================
* Copyright (c) 2000-2005 The OpenSSL Project. All rights reserved.
* are met:
*
* 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
+ * notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
/* Override the default free and new methods */
static int dh_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
- void *exarg)
+ void *exarg)
{
- if(operation == ASN1_OP_NEW_PRE) {
- *pval = (ASN1_VALUE *)DH_new();
- if(*pval) return 2;
- return 0;
- } else if(operation == ASN1_OP_FREE_PRE) {
- DH_free((DH *)*pval);
- *pval = NULL;
- return 2;
- }
- return 1;
+ if (operation == ASN1_OP_NEW_PRE) {
+ *pval = (ASN1_VALUE *)DH_new();
+ if (*pval)
+ return 2;
+ return 0;
+ } else if (operation == ASN1_OP_FREE_PRE) {
+ DH_free((DH *)*pval);
+ *pval = NULL;
+ return 2;
+ }
+ return 1;
}
ASN1_SEQUENCE_cb(DHparams, dh_cb) = {
- ASN1_SIMPLE(DH, p, BIGNUM),
- ASN1_SIMPLE(DH, g, BIGNUM),
- ASN1_OPT(DH, length, ZLONG),
+ ASN1_SIMPLE(DH, p, BIGNUM),
+ ASN1_SIMPLE(DH, g, BIGNUM),
+ ASN1_OPT(DH, length, ZLONG),
} ASN1_SEQUENCE_END_cb(DH, DHparams)
IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(DH, DHparams, DHparams)
-/* Internal only structures for handling X9.42 DH: this gets translated
- * to or from a DH structure straight away.
+/*
+ * Internal only structures for handling X9.42 DH: this gets translated to or
+ * from a DH structure straight away.
*/
-typedef struct
- {
- ASN1_BIT_STRING *seed;
- BIGNUM *counter;
- } int_dhvparams;
-
-typedef struct
- {
- BIGNUM *p;
- BIGNUM *q;
- BIGNUM *g;
- BIGNUM *j;
- int_dhvparams *vparams;
- } int_dhx942_dh;
+typedef struct {
+ ASN1_BIT_STRING *seed;
+ BIGNUM *counter;
+} int_dhvparams;
+
+typedef struct {
+ BIGNUM *p;
+ BIGNUM *q;
+ BIGNUM *g;
+ BIGNUM *j;
+ int_dhvparams *vparams;
+} int_dhx942_dh;
ASN1_SEQUENCE(DHvparams) = {
- ASN1_SIMPLE(int_dhvparams, seed, ASN1_BIT_STRING),
- ASN1_SIMPLE(int_dhvparams, counter, BIGNUM)
+ ASN1_SIMPLE(int_dhvparams, seed, ASN1_BIT_STRING),
+ ASN1_SIMPLE(int_dhvparams, counter, BIGNUM)
} ASN1_SEQUENCE_END_name(int_dhvparams, DHvparams)
ASN1_SEQUENCE(DHxparams) = {
- ASN1_SIMPLE(int_dhx942_dh, p, BIGNUM),
- ASN1_SIMPLE(int_dhx942_dh, g, BIGNUM),
- ASN1_SIMPLE(int_dhx942_dh, q, BIGNUM),
- ASN1_OPT(int_dhx942_dh, j, BIGNUM),
- ASN1_OPT(int_dhx942_dh, vparams, DHvparams),
+ ASN1_SIMPLE(int_dhx942_dh, p, BIGNUM),
+ ASN1_SIMPLE(int_dhx942_dh, g, BIGNUM),
+ ASN1_SIMPLE(int_dhx942_dh, q, BIGNUM),
+ ASN1_OPT(int_dhx942_dh, j, BIGNUM),
+ ASN1_OPT(int_dhx942_dh, vparams, DHvparams),
} ASN1_SEQUENCE_END_name(int_dhx942_dh, DHxparams)
-int_dhx942_dh * d2i_int_dhx(int_dhx942_dh **a,
- const unsigned char **pp, long length);
-int i2d_int_dhx(const int_dhx942_dh *a,unsigned char **pp);
+int_dhx942_dh *d2i_int_dhx(int_dhx942_dh **a,
+ const unsigned char **pp, long length);
+int i2d_int_dhx(const int_dhx942_dh *a, unsigned char **pp);
IMPLEMENT_ASN1_ENCODE_FUNCTIONS_const_fname(int_dhx942_dh, DHxparams, int_dhx)
/* Application leve function: read in X9.42 DH parameters into DH structure */
-DH * d2i_DHxparams(DH **a,const unsigned char **pp, long length)
- {
- int_dhx942_dh *dhx = NULL;
- DH *dh = NULL;
- dh = DH_new();
- if (!dh)
- return NULL;
- dhx = d2i_int_dhx(NULL, pp, length);
- if (!dhx)
- {
- DH_free(dh);
- return NULL;
- }
-
- if (a)
- {
- if (*a)
- DH_free(*a);
- *a = dh;
- }
-
- dh->p = dhx->p;
- dh->q = dhx->q;
- dh->g = dhx->g;
- dh->j = dhx->j;
-
- if (dhx->vparams)
- {
- dh->seed = dhx->vparams->seed->data;
- dh->seedlen = dhx->vparams->seed->length;
- dh->counter = dhx->vparams->counter;
- dhx->vparams->seed->data = NULL;
- ASN1_BIT_STRING_free(dhx->vparams->seed);
- OPENSSL_free(dhx->vparams);
- dhx->vparams = NULL;
- }
-
- OPENSSL_free(dhx);
- return dh;
- }
-
-int i2d_DHxparams(const DH *dh,unsigned char **pp)
- {
- int_dhx942_dh dhx;
- int_dhvparams dhv;
- ASN1_BIT_STRING bs;
- dhx.p = dh->p;
- dhx.g = dh->g;
- dhx.q = dh->q;
- dhx.j = dh->j;
- if (dh->counter && dh->seed && dh->seedlen > 0)
- {
- bs.flags = ASN1_STRING_FLAG_BITS_LEFT;
- bs.data = dh->seed;
- bs.length = dh->seedlen;
- dhv.seed = &bs;
- dhv.counter = dh->counter;
- dhx.vparams = &dhv;
- }
- else
- dhx.vparams = NULL;
-
- return i2d_int_dhx(&dhx, pp);
- }
+DH *d2i_DHxparams(DH **a, const unsigned char **pp, long length)
+{
+ int_dhx942_dh *dhx = NULL;
+ DH *dh = NULL;
+ dh = DH_new();
+ if (!dh)
+ return NULL;
+ dhx = d2i_int_dhx(NULL, pp, length);
+ if (!dhx) {
+ DH_free(dh);
+ return NULL;
+ }
+
+ if (a) {
+ if (*a)
+ DH_free(*a);
+ *a = dh;
+ }
+
+ dh->p = dhx->p;
+ dh->q = dhx->q;
+ dh->g = dhx->g;
+ dh->j = dhx->j;
+
+ if (dhx->vparams) {
+ dh->seed = dhx->vparams->seed->data;
+ dh->seedlen = dhx->vparams->seed->length;
+ dh->counter = dhx->vparams->counter;
+ dhx->vparams->seed->data = NULL;
+ ASN1_BIT_STRING_free(dhx->vparams->seed);
+ OPENSSL_free(dhx->vparams);
+ dhx->vparams = NULL;
+ }
+
+ OPENSSL_free(dhx);
+ return dh;
+}
+
+int i2d_DHxparams(const DH *dh, unsigned char **pp)
+{
+ int_dhx942_dh dhx;
+ int_dhvparams dhv;
+ ASN1_BIT_STRING bs;
+ dhx.p = dh->p;
+ dhx.g = dh->g;
+ dhx.q = dh->q;
+ dhx.j = dh->j;
+ if (dh->counter && dh->seed && dh->seedlen > 0) {
+ bs.flags = ASN1_STRING_FLAG_BITS_LEFT;
+ bs.data = dh->seed;
+ bs.length = dh->seedlen;
+ dhv.seed = &bs;
+ dhv.counter = dh->counter;
+ dhx.vparams = &dhv;
+ } else
+ dhx.vparams = NULL;
+
+ return i2d_int_dhx(&dhx, pp);
+}
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