Files
wolfssl/tests/swdev/swdev.c
T
rizlik 0f82b9e5fb tests/swdev: add scaffolding for WOLF_CRYPTO_CB_ONLY_* testing
Add a software crypto-callback device (wc_swdev) that lets the wolfcrypt
test suite run under WOLF_CRYPTO_CB_ONLY_* flags without per-test devId
plumbing.  The bundle is a separately-compiled second copy of wolfcrypt
(software implementations enabled, WOLF_CRYPTO_CB_ONLY_* stripped) linked
into testwolfcrypt as a single relocatable object; every symbol is demoted
to local via objcopy --keep-global-symbol except wc_SwDev_Callback, so there
is no collision with the main libwolfssl.

A find callback routes unbound operations (devId == INVALID_DEVID) to the
swdev while letting real device IDs pass through.

wc_SwDev_Init / wc_SwDev_Cleanup hooks are wired into wolfcrypt/test/test.c.
cryptocb_test's WOLF_CRYPTO_CB_FIND and WOLF_CRYPTO_CB_ONLY_RSA blocks are
gated off under WOLFSSL_SWDEV.

Enable via --enable-swdev (requires --enable-cryptocb).
2026-05-13 16:18:51 +02:00

41 lines
773 B
C

/* tests/swdev/swdev.c -- wc_swdev callback. */
#include "swdev.h"
#include <wolfssl/wolfcrypt/settings.h>
#include <wolfssl/wolfcrypt/types.h>
#include <wolfssl/wolfcrypt/error-crypt.h>
#include <wolfssl/wolfcrypt/wc_port.h>
static int swdev_initialized = 0;
static int swdev_ensure_init(void)
{
if (!swdev_initialized) {
int ret = wolfCrypt_Init();
if (ret != 0)
return ret;
swdev_initialized = 1;
}
return 0;
}
WC_SWDEV_EXPORT int wc_SwDev_Callback(int devId, wc_CryptoInfo* info,
void* ctx)
{
int ret;
(void)devId;
(void)ctx;
if (info == NULL)
return BAD_FUNC_ARG;
ret = swdev_ensure_init();
if (ret != 0)
return ret;
(void)ret;
return CRYPTOCB_UNAVAILABLE;
}