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Fix decode cert when store is enabled for login/logout reuse scenario #39

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Merged
dgarske merged 2 commits into from
Dec 17, 2024
Merged

Fix decode cert when store is enabled for login/logout reuse scenario #39

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e6055b9
Fix decode cert when store is enabled for login/logout reuse scenario
ColtonWilley Dec 17, 2024
6a2a80d
Restore accidentally modified add_cert example to original
ColtonWilley Dec 17, 2024
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13 changes: 9 additions & 4 deletions src/internal.c
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Original file line number Diff line number Diff line change
Expand Up @@ -1628,9 +1628,10 @@ static int wp11_Object_Store_Cert(WP11_Object* object, int tokenId, int objId)
*/
static void wp11_Object_Decode_Cert(WP11_Object* object)
{
object->data.cert.data = object->keyData;
object->data.cert.len = object->keyDataLen;
object->keyData = NULL;
if (object->data.cert.data == NULL) {
object->data.cert.data = object->keyData;
object->data.cert.len = object->keyDataLen;
}
object->encoded = 0;
}

Expand Down Expand Up @@ -4952,6 +4953,7 @@ void WP11_Session_FindFinal(WP11_Session* session)
*/
void WP11_Object_Free(WP11_Object* object)
{
int certFreed = 0;
#ifdef WOLFPKCS11_TPM
wolfTPM2_UnloadHandle(&object->slot->tpmDev, &object->tpmKey.handle);
#endif
Expand All @@ -4963,6 +4965,7 @@ void WP11_Object_Free(WP11_Object* object)
XFREE(object->keyId, NULL, DYNAMIC_TYPE_TMP_BUFFER);
if (object->objClass == CKO_CERTIFICATE) {
XFREE(object->data.cert.data, NULL, DYNAMIC_TYPE_CERT);
certFreed = 1;
}
else {
#ifndef NO_RSA
Expand All @@ -4982,8 +4985,10 @@ void WP11_Object_Free(WP11_Object* object)
}

#ifndef WOLFPKCS11_NO_STORE
if (object->keyData != NULL)
if (object->keyData != NULL && certFreed == 0)
XFREE(object->keyData, NULL, DYNAMIC_TYPE_TMP_BUFFER);
#else
(void)certFreed;
#endif

/* Dispose of object. */
Expand Down
59 changes: 59 additions & 0 deletions tests/pkcs11test.c
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Original file line number Diff line number Diff line change
Expand Up @@ -7581,6 +7581,7 @@ static CK_RV test_hmac_sha512_fail(void* args)
static CK_RV test_x509(void* args)
{
CK_RV ret = CKR_OK;
int sessFlags = CKF_SERIAL_SESSION | CKF_RW_SESSION;
CK_SESSION_HANDLE session = *(CK_SESSION_HANDLE*)args;
CK_CERTIFICATE_TYPE certType = CKC_X_509;
CK_UTF8CHAR label[] = "A certificate object";
Expand Down Expand Up @@ -7733,6 +7734,11 @@ static CK_RV test_x509(void* args)
{ CKA_VALUE, NULL, 0 }
};
CK_ULONG getTmplCnt = sizeof(getTmpl) / sizeof(*getTmpl);
CK_ATTRIBUTE findTmpl[] = {
{ CKA_ID, id, sizeof(id)}
};
CK_ULONG findTmplCnt = sizeof(findTmpl) / sizeof(*findTmpl);
CK_ULONG count = 1;

ret = funcList->C_CreateObject(session, tmpl, tmplCnt, &obj);
CHECK_CKR(ret, "Create certificate object");
Expand Down Expand Up @@ -7762,8 +7768,61 @@ static CK_RV test_x509(void* args)
XFREE(getTmpl[0].pValue, NULL, DYNAMIC_TYPE_TMP_BUFFER);
}
}
}

/* Do a login/logout cycle and check that the value still matches */
if (userPinLen != 0)
funcList->C_Logout(session);
funcList->C_CloseSession(session);

ret = funcList->C_OpenSession(slot, sessFlags, NULL, NULL, &session);
CHECK_CKR(ret, "Open Session");
if (ret == CKR_OK && userPinLen != 0) {
ret = funcList->C_Login(session, CKU_USER, userPin, userPinLen);
CHECK_CKR(ret, "Login");
}

ret = funcList->C_FindObjectsInit(session, findTmpl, findTmplCnt);
CHECK_CKR(ret, "C_FindObjectsInit");
if (ret == CKR_OK) {
ret = funcList->C_FindObjects(session, &obj, 1, &count);
CHECK_CKR(ret, "C_FindObjects");
if (ret == CKR_OK) {
ret = funcList->C_FindObjectsFinal(session);
CHECK_CKR(ret, "C_FindObjectsFinal");
}
}

if (ret == CKR_OK) {
getTmpl[0].pValue = NULL;
getTmpl[0].ulValueLen = 0;
ret = funcList->C_GetAttributeValue(session, obj, getTmpl, getTmplCnt);
CHECK_CKR(ret, "C_GetAttributeValue");
if (ret == CKR_OK) {
getTmpl[0].pValue = XMALLOC(getTmpl[0].ulValueLen * sizeof(byte),
NULL, DYNAMIC_TYPE_TMP_BUFFER);
if (getTmpl[0].pValue == NULL)
ret = CKR_DEVICE_MEMORY;
CHECK_CKR(ret, "Allocate get attribute memory");

if (ret == CKR_OK) {
ret = funcList->C_GetAttributeValue(session, obj, getTmpl, getTmplCnt);
CHECK_CKR(ret, "C_GetAttributeValue");

if (sizeof(certificate) != getTmpl[0].ulValueLen) {
ret = CKR_GENERAL_ERROR;
}
if (XMEMCMP(certificate, getTmpl[0].pValue, sizeof(certificate)) != 0) {
ret = CKR_GENERAL_ERROR;
}
CHECK_CKR(ret, "Verify that stored cert matches original");

XFREE(getTmpl[0].pValue, NULL, DYNAMIC_TYPE_TMP_BUFFER);
}
}
ret = funcList->C_DestroyObject(session, obj);
}

return ret;
}

Expand Down
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