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/*
* This program is licensed under the same licence as Ruby.
* (See the file 'LICENCE'.)
*/
#include "ossl.h"
#ifdef OSSL_USE_PROVIDER
# include <openssl/provider.h>
#define NewProvider(klass) \
TypedData_Wrap_Struct((klass), &ossl_provider_type, 0)
#define SetProvider(obj, provider) do { \
if (!(provider)) { \
ossl_raise(rb_eRuntimeError, "Provider wasn't initialized."); \
} \
RTYPEDDATA_DATA(obj) = (provider); \
} while(0)
#define GetProvider(obj, provider) do { \
TypedData_Get_Struct((obj), OSSL_PROVIDER, &ossl_provider_type, (provider)); \
if (!(provider)) { \
ossl_raise(rb_eRuntimeError, "PROVIDER wasn't initialized."); \
} \
} while (0)
static const rb_data_type_t ossl_provider_type = {
"OpenSSL/Provider",
{
0,
},
0, 0, RUBY_TYPED_FREE_IMMEDIATELY | RUBY_TYPED_WB_PROTECTED,
};
/*
* Classes
*/
/* Document-class: OpenSSL::Provider
*
* This class is the access to openssl's Provider
* See also, https://www.openssl.org/docs/manmaster/man7/provider.html
*/
static VALUE cProvider;
/* Document-class: OpenSSL::Provider::ProviderError
*
* This is the generic exception for OpenSSL::Provider related errors
*/
static VALUE eProviderError;
/*
* call-seq:
* OpenSSL::Provider.load(name) -> provider
*
* This method loads and initializes a provider
*/
static VALUE
ossl_provider_s_load(VALUE klass, VALUE name)
{
OSSL_PROVIDER *provider = NULL;
VALUE obj;
const char *provider_name_ptr = StringValueCStr(name);
provider = OSSL_PROVIDER_load(NULL, provider_name_ptr);
if (provider == NULL) {
ossl_raise(eProviderError, "Failed to load %s provider", provider_name_ptr);
}
obj = NewProvider(klass);
SetProvider(obj, provider);
return obj;
}
struct ary_with_state { VALUE ary; int state; };
struct rb_push_provider_name_args { OSSL_PROVIDER *prov; VALUE ary; };
static VALUE
rb_push_provider_name(VALUE rb_push_provider_name_args)
{
struct rb_push_provider_name_args *args = (struct rb_push_provider_name_args *)rb_push_provider_name_args;
VALUE name = rb_str_new2(OSSL_PROVIDER_get0_name(args->prov));
return rb_ary_push(args->ary, name);
}
static int
push_provider(OSSL_PROVIDER *prov, void *cbdata)
{
struct ary_with_state *ary_with_state = (struct ary_with_state *)cbdata;
struct rb_push_provider_name_args args = { prov, ary_with_state->ary };
rb_protect(rb_push_provider_name, (VALUE)&args, &ary_with_state->state);
if (ary_with_state->state) {
return 0;
} else {
return 1;
}
}
/*
* call-seq:
* OpenSSL::Provider.provider_names -> [provider_name, ...]
*
* Returns an array of currently loaded provider names.
*/
static VALUE
ossl_provider_s_provider_names(VALUE klass)
{
VALUE ary = rb_ary_new();
struct ary_with_state cbdata = { ary, 0 };
int result = OSSL_PROVIDER_do_all(NULL, &push_provider, (void*)&cbdata);
if (result != 1 ) {
if (cbdata.state) {
rb_jump_tag(cbdata.state);
} else {
ossl_raise(eProviderError, "Failed to load provider names");
}
}
return ary;
}
/*
* call-seq:
* provider.unload -> true
*
* This method unloads this provider.
*
* if provider unload fails or already unloaded, it raises OpenSSL::Provider::ProviderError
*/
static VALUE
ossl_provider_unload(VALUE self)
{
OSSL_PROVIDER *prov;
if (RTYPEDDATA_DATA(self) == NULL) {
ossl_raise(eProviderError, "Provider already unloaded.");
}
GetProvider(self, prov);
int result = OSSL_PROVIDER_unload(prov);
if (result != 1) {
ossl_raise(eProviderError, "Failed to unload provider");
}
RTYPEDDATA_DATA(self) = NULL;
return Qtrue;
}
/*
* call-seq:
* provider.name -> string
*
* Get the name of this provider.
*
* if this provider is already unloaded, it raises OpenSSL::Provider::ProviderError
*/
static VALUE
ossl_provider_get_name(VALUE self)
{
OSSL_PROVIDER *prov;
if (RTYPEDDATA_DATA(self) == NULL) {
ossl_raise(eProviderError, "Provider already unloaded.");
}
GetProvider(self, prov);
return rb_str_new2(OSSL_PROVIDER_get0_name(prov));
}
/*
* call-seq:
* provider.inspect -> string
*
* Pretty prints this provider.
*/
static VALUE
ossl_provider_inspect(VALUE self)
{
OSSL_PROVIDER *prov;
if (RTYPEDDATA_DATA(self) == NULL ) {
return rb_sprintf("#<%"PRIsVALUE" unloaded provider>", rb_obj_class(self));
}
GetProvider(self, prov);
return rb_sprintf("#<%"PRIsVALUE" name=\"%s\">",
rb_obj_class(self), OSSL_PROVIDER_get0_name(prov));
}
void
Init_ossl_provider(void)
{
#if 0
mOSSL = rb_define_module("OpenSSL");
eOSSLError = rb_define_class_under(mOSSL, "OpenSSLError", rb_eStandardError);
#endif
cProvider = rb_define_class_under(mOSSL, "Provider", rb_cObject);
eProviderError = rb_define_class_under(cProvider, "ProviderError", eOSSLError);
rb_undef_alloc_func(cProvider);
rb_define_singleton_method(cProvider, "load", ossl_provider_s_load, 1);
rb_define_singleton_method(cProvider, "provider_names", ossl_provider_s_provider_names, 0);
rb_define_method(cProvider, "unload", ossl_provider_unload, 0);
rb_define_method(cProvider, "name", ossl_provider_get_name, 0);
rb_define_method(cProvider, "inspect", ossl_provider_inspect, 0);
}
#else
void
Init_ossl_provider(void)
{
}
#endif
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