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/*
* Copyright 2016-2017 The OpenSSL Project Authors. All Rights Reserved.
*
* Licensed under the OpenSSL license (the "License"). You may not use
* this file except in compliance with the License. You can obtain a copy
* in the file LICENSE in the source distribution or at
* https://www.openssl.org/source/license.html
*/
#include <stdlib.h>
#include <string.h>
#include <openssl/crypto.h>
#include <openssl/err.h>
#include <openssl/store.h>
#include "internal/thread_once.h"
#include "store_locl.h"
struct ossl_store_ctx_st {
const OSSL_STORE_LOADER *loader;
OSSL_STORE_LOADER_CTX *loader_ctx;
const UI_METHOD *ui_method;
void *ui_data;
OSSL_STORE_post_process_info_fn post_process;
void *post_process_data;
};
OSSL_STORE_CTX *OSSL_STORE_open(const char *uri, const UI_METHOD *ui_method,
void *ui_data,
OSSL_STORE_post_process_info_fn post_process,
void *post_process_data)
{
const OSSL_STORE_LOADER *loader;
OSSL_STORE_LOADER_CTX *loader_ctx = NULL;
OSSL_STORE_CTX *ctx = NULL;
char scheme_copy[256], *p;
OPENSSL_strlcpy(scheme_copy, uri, sizeof(scheme_copy));
if ((p = strchr(scheme_copy, ':')) != NULL) {
*p = '\0';
p = scheme_copy;
} else {
p = "file";
}
if ((loader = ossl_store_get0_loader_int(p)) == NULL
|| (loader_ctx = loader->open(loader, uri, ui_method, ui_data)) == NULL)
goto done;
if ((ctx = OPENSSL_zalloc(sizeof(*ctx))) == NULL) {
OSSL_STOREerr(OSSL_STORE_F_OSSL_STORE_OPEN, ERR_R_MALLOC_FAILURE);
goto done;
}
ctx->loader = loader;
ctx->loader_ctx = loader_ctx;
loader_ctx = NULL;
ctx->ui_method = ui_method;
ctx->ui_data = ui_data;
ctx->post_process = post_process;
ctx->post_process_data = post_process_data;
done:
if (loader_ctx != NULL) {
/*
* We ignore a returned error because we will return NULL anyway in
* this case, so if something goes wrong when closing, that'll simply
* just add another entry on the error stack.
*/
(void)loader->close(loader_ctx);
}
return ctx;
}
int OSSL_STORE_ctrl(OSSL_STORE_CTX *ctx, int cmd, ...)
{
va_list args;
int ret = 0;
va_start(args, cmd);
if (ctx->loader->ctrl != NULL)
ret = ctx->loader->ctrl(ctx->loader_ctx, cmd, args);
va_end(args);
return ret;
}
OSSL_STORE_INFO *OSSL_STORE_load(OSSL_STORE_CTX *ctx)
{
OSSL_STORE_INFO *v = NULL;
again:
v = ctx->loader->load(ctx->loader_ctx, ctx->ui_method, ctx->ui_data);
if (ctx->post_process != NULL && v != NULL) {
v = ctx->post_process(v, ctx->post_process_data);
/*
* By returning NULL, the callback decides that this object should
* be ignored.
*/
if (v == NULL)
goto again;
}
return v;
}
int OSSL_STORE_error(OSSL_STORE_CTX *ctx)
{
return ctx->loader->error(ctx->loader_ctx);
}
int OSSL_STORE_eof(OSSL_STORE_CTX *ctx)
{
return ctx->loader->eof(ctx->loader_ctx);
}
int OSSL_STORE_close(OSSL_STORE_CTX *ctx)
{
int loader_ret = ctx->loader->close(ctx->loader_ctx);
OPENSSL_free(ctx);
return loader_ret;
}
/*
* Functions to generate OSSL_STORE_INFOs, one function for each type we
* support having in them. Along with each of them, one macro that
* can be used to determine what types are supported.
*
* In all cases, ownership of the object is transfered to the OSSL_STORE_INFO
* and will therefore be freed when the OSSL_STORE_INFO is freed.
*/
static OSSL_STORE_INFO *store_info_new(int type, void *data)
{
OSSL_STORE_INFO *info = OPENSSL_zalloc(sizeof(*info));
if (info == NULL)
return NULL;
info->type = type;
info->_.data = data;
return info;
}
OSSL_STORE_INFO *OSSL_STORE_INFO_new_NAME(char *name)
{
OSSL_STORE_INFO *info = store_info_new(OSSL_STORE_INFO_NAME, NULL);
if (info == NULL) {
OSSL_STOREerr(OSSL_STORE_F_OSSL_STORE_INFO_NEW_NAME,
ERR_R_MALLOC_FAILURE);
return NULL;
}
info->_.name.name = name;
info->_.name.desc = NULL;
return info;
}
int OSSL_STORE_INFO_set0_NAME_description(OSSL_STORE_INFO *info, char *desc)
{
if (info->type != OSSL_STORE_INFO_NAME) {
OSSL_STOREerr(OSSL_STORE_F_OSSL_STORE_INFO_SET0_NAME_DESCRIPTION,
ERR_R_PASSED_INVALID_ARGUMENT);
return 0;
}
info->_.name.desc = desc;
return 1;
}
OSSL_STORE_INFO *OSSL_STORE_INFO_new_PARAMS(EVP_PKEY *params)
{
OSSL_STORE_INFO *info = store_info_new(OSSL_STORE_INFO_PARAMS, params);
if (info == NULL)
OSSL_STOREerr(OSSL_STORE_F_OSSL_STORE_INFO_NEW_PARAMS,
ERR_R_MALLOC_FAILURE);
return info;
}
OSSL_STORE_INFO *OSSL_STORE_INFO_new_PKEY(EVP_PKEY *pkey)
{
OSSL_STORE_INFO *info = store_info_new(OSSL_STORE_INFO_PKEY, pkey);
if (info == NULL)
OSSL_STOREerr(OSSL_STORE_F_OSSL_STORE_INFO_NEW_PKEY,
ERR_R_MALLOC_FAILURE);
return info;
}
OSSL_STORE_INFO *OSSL_STORE_INFO_new_CERT(X509 *x509)
{
OSSL_STORE_INFO *info = store_info_new(OSSL_STORE_INFO_CERT, x509);
if (info == NULL)
OSSL_STOREerr(OSSL_STORE_F_OSSL_STORE_INFO_NEW_CERT,
ERR_R_MALLOC_FAILURE);
return info;
}
OSSL_STORE_INFO *OSSL_STORE_INFO_new_CRL(X509_CRL *crl)
{
OSSL_STORE_INFO *info = store_info_new(OSSL_STORE_INFO_CRL, crl);
if (info == NULL)
OSSL_STOREerr(OSSL_STORE_F_OSSL_STORE_INFO_NEW_CRL,
ERR_R_MALLOC_FAILURE);
return info;
}
/*
* Functions to try to extract data from a OSSL_STORE_INFO.
*/
int OSSL_STORE_INFO_get_type(const OSSL_STORE_INFO *info)
{
return info->type;
}
const char *OSSL_STORE_INFO_get0_NAME(const OSSL_STORE_INFO *info)
{
if (info->type == OSSL_STORE_INFO_NAME)
return info->_.name.name;
return NULL;
}
char *OSSL_STORE_INFO_get1_NAME(const OSSL_STORE_INFO *info)
{
if (info->type == OSSL_STORE_INFO_NAME) {
char *ret = OPENSSL_strdup(info->_.name.name);
if (ret == NULL)
OSSL_STOREerr(OSSL_STORE_F_OSSL_STORE_INFO_GET1_NAME,
ERR_R_MALLOC_FAILURE);
return ret;
}
OSSL_STOREerr(OSSL_STORE_F_OSSL_STORE_INFO_GET1_NAME,
OSSL_STORE_R_NOT_A_NAME);
return NULL;
}
const char *OSSL_STORE_INFO_get0_NAME_description(const OSSL_STORE_INFO *info)
{
if (info->type == OSSL_STORE_INFO_NAME)
return info->_.name.desc;
return NULL;
}
char *OSSL_STORE_INFO_get1_NAME_description(const OSSL_STORE_INFO *info)
{
if (info->type == OSSL_STORE_INFO_NAME) {
char *ret = OPENSSL_strdup(info->_.name.desc
? info->_.name.desc : "");
if (ret == NULL)
OSSL_STOREerr(OSSL_STORE_F_OSSL_STORE_INFO_GET1_NAME_DESCRIPTION,
ERR_R_MALLOC_FAILURE);
return ret;
}
OSSL_STOREerr(OSSL_STORE_F_OSSL_STORE_INFO_GET1_NAME_DESCRIPTION,
OSSL_STORE_R_NOT_A_NAME);
return NULL;
}
EVP_PKEY *OSSL_STORE_INFO_get0_PARAMS(const OSSL_STORE_INFO *info)
{
if (info->type == OSSL_STORE_INFO_PARAMS)
return info->_.params;
return NULL;
}
EVP_PKEY *OSSL_STORE_INFO_get1_PARAMS(const OSSL_STORE_INFO *info)
{
if (info->type == OSSL_STORE_INFO_PARAMS) {
EVP_PKEY_up_ref(info->_.params);
return info->_.params;
}
OSSL_STOREerr(OSSL_STORE_F_OSSL_STORE_INFO_GET1_PARAMS,
OSSL_STORE_R_NOT_PARAMETERS);
return NULL;
}
EVP_PKEY
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