int asn1_do_lock(ASN1_VALUE **pval, int op, const ASN1_ITEM *it)
{
const ASN1_AUX *aux;
int *lck, ret;
CRYPTO_RWLOCK **lock;
if ((it->itype != ASN1_ITYPE_SEQUENCE)
&& (it->itype != ASN1_ITYPE_NDEF_SEQUENCE))
return 0;
aux = it->funcs;
if (!aux || !(aux->flags & ASN1_AFLG_REFCOUNT))
return 0;
lck = offset2ptr(*pval, aux->ref_offset);
lock = offset2ptr(*pval, aux->ref_lock);
if (op == 0) {
*lck = 1;
*lock = CRYPTO_THREAD_lock_new();
if (*lock == NULL)
return 0;
return 1;
}
CRYPTO_atomic_add(lck, op, &ret, *lock);
#ifdef REF_PRINT
fprintf(stderr, "%p:%4d:%s\n", it, *lck, it->sname);
#endif
REF_ASSERT_ISNT(ret < 0);
if (ret == 0)
CRYPTO_THREAD_lock_free(*lock);
return ret;
}
int asn1_do_lock(ASN1_VALUE **pval, int op, const ASN1_ITEM *it)
{
const ASN1_AUX *aux;
int *lck, ret;
CRYPTO_MUTEX **lock;
if ((it->itype != ASN1_ITYPE_SEQUENCE)
&& (it->itype != ASN1_ITYPE_NDEF_SEQUENCE))
return 0;
aux = it->funcs;
if (!aux || !(aux->flags & ASN1_AFLG_REFCOUNT))
return 0;
lck = offset2ptr(*pval, aux->ref_offset);
lock = offset2ptr(*pval, aux->ref_lock);
if (op == 0) {
*lck = 1;
*lock = CRYPTO_thread_new();
if (*lock == NULL)
return 0;
return 1;
}
CRYPTO_atomic_add(lck, op, &ret, *lock);
if (ret == 0)
CRYPTO_thread_cleanup(*lock);
return ret;
}
int asn1_do_lock(ASN1_VALUE **pval, int op, const ASN1_ITEM *it)
{
const ASN1_AUX *aux;
int *lck, ret;
if ((it->itype != ASN1_ITYPE_SEQUENCE)
&& (it->itype != ASN1_ITYPE_NDEF_SEQUENCE))
return 0;
aux = it->funcs;
if (!aux || !(aux->flags & ASN1_AFLG_REFCOUNT))
return 0;
lck = offset2ptr(*pval, aux->ref_offset);
if (op == 0)
{
*lck = 1;
return 1;
}
ret = CRYPTO_add(lck, op, aux->ref_lock);
#ifdef REF_PRINT
fprintf(stderr, "%s: Reference Count: %d\n", it->sname, *lck);
#endif
#ifdef REF_CHECK
if (ret < 0)
fprintf(stderr, "%s, bad reference count\n", it->sname);
#endif
return ret;
}
const ASN1_TEMPLATE *
asn1_do_adb(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt, int nullerr)
{
const ASN1_ADB *adb;
const ASN1_ADB_TABLE *atbl;
long selector;
ASN1_VALUE **sfld;
int i;
if (!(tt->flags & ASN1_TFLG_ADB_MASK))
return tt;
/* Else ANY DEFINED BY ... get the table */
adb = ASN1_ADB_ptr(tt->item);
/* Get the selector field */
sfld = offset2ptr(*pval, adb->offset);
/* Check if NULL */
if (!sfld) {
if (!adb->null_tt)
goto err;
return adb->null_tt;
}
/* Convert type to a long:
* NB: don't check for NID_undef here because it
* might be a legitimate value in the table
*/
if (tt->flags & ASN1_TFLG_ADB_OID)
selector = OBJ_obj2nid((ASN1_OBJECT *)*sfld);
else
selector = ASN1_INTEGER_get((ASN1_INTEGER *)*sfld);
/* Try to find matching entry in table
* Maybe should check application types first to
* allow application override? Might also be useful
* to have a flag which indicates table is sorted and
* we can do a binary search. For now stick to a
* linear search.
*/
for (atbl = adb->tbl, i = 0; i < adb->tblcount; i++, atbl++)
if (atbl->value == selector)
return &atbl->tt;
/* FIXME: need to search application table too */
/* No match, return default type */
if (!adb->default_tt)
goto err;
return adb->default_tt;
err:
/* FIXME: should log the value or OID of unsupported type */
if (nullerr)
ASN1err(ASN1_F_ASN1_DO_ADB,
ASN1_R_UNSUPPORTED_ANY_DEFINED_BY_TYPE);
return NULL;
}
int asn1_set_choice_selector(ASN1_VALUE **pval, int value, const ASN1_ITEM *it)
{
int *sel, ret;
sel = offset2ptr(*pval, it->utype);
ret = *sel;
*sel = value;
return ret;
}
static ASN1_ENCODING *asn1_get_enc_ptr(ASN1_VALUE **pval, const ASN1_ITEM *it)
{
const ASN1_AUX *aux;
if(!pval || !*pval) return NULL;
aux = it->funcs;
if(!aux || !(aux->flags & ASN1_AFLG_ENCODING)) return NULL;
return offset2ptr(*pval, aux->enc_offset);
}
static CRYPTO_refcount_t *asn1_get_references(ASN1_VALUE **pval,
const ASN1_ITEM *it) {
if (it->itype != ASN1_ITYPE_SEQUENCE &&
it->itype != ASN1_ITYPE_NDEF_SEQUENCE) {
return NULL;
}
const ASN1_AUX *aux = it->funcs;
if (!aux || !(aux->flags & ASN1_AFLG_REFCOUNT)) {
return NULL;
}
return offset2ptr(*pval, aux->ref_offset);
}
const ASN1_TEMPLATE *asn1_do_adb(ASN1_VALUE **pval, const ASN1_TEMPLATE *tt,int nullerr)
{
const ASN1_ADB *adb;
const ASN1_ADB_TABLE *atbl;
long selector = 0;
ASN1_VALUE **sfld;
int i;
if (!(tt->flags & ASN1_TFLG_ADB_MASK))
return tt;//??
adb = ASN1_ADB_ptr(tt->item);
sfld = offset2ptr(*pval, adb->offset);
if (!sfld)
{
if (!adb->null_tt)
goto err;
return adb->null_tt;
}
if (tt->flags & ASN1_TFLG_ADB_OID)
selector = OBJ_obj2nid((ASN1_OBJECT *)*sfld);
else
//selector = ASN1_INTEGER_get((ASN1_INTEGER *)*sfld);
;
for (atbl = adb->tbl, i = 0; i < adb->tblcount; i++, atbl++)
if (atbl->value == selector)
return &atbl->tt;
if (!adb->default_tt)
goto err;
return adb->default_tt;
err:
if (nullerr)
ASN1err(ASN1_F_ASN1_DO_ADB,
ASN1_R_UNSUPPORTED_ANY_DEFINED_BY_TYPE);
return NULL;
}
/* Do reference counting. The value 'op' decides what to do. if it is +1 then
* the count is incremented. If op is 0 count is set to 1. If op is -1 count is
* decremented and the return value is the current refrence count or 0 if no
* reference count exists. */
int asn1_do_lock(ASN1_VALUE **pval, int op, const ASN1_ITEM *it) {
const ASN1_AUX *aux;
int *lck, ret;
if (it->itype != ASN1_ITYPE_SEQUENCE &&
it->itype != ASN1_ITYPE_NDEF_SEQUENCE) {
return 0;
}
aux = it->funcs;
if (!aux || !(aux->flags & ASN1_AFLG_REFCOUNT)) {
return 0;
}
lck = offset2ptr(*pval, aux->ref_offset);
if (op == 0) {
*lck = 1;
return 1;
}
ret = CRYPTO_add(lck, op, aux->ref_lock);
return ret;
}
int asn1_get_choice_selector(ASN1_VALUE **pval, const ASN1_ITEM *it)
{
int *sel = offset2ptr(*pval, it->utype);
return *sel;
}
