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wolfcrypt/src/pkcs12.c: add WOLFSSL_SMALL_STACK path in freeDecCertList().

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This commit is contained in:
Daniel Pouzzner 2022-08-04 11:16:47 -05:00
parent d7e33b3293
commit 9d5e633a96
1 changed files with 25 additions and 9 deletions
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34
wolfcrypt/src/pkcs12.c
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@ -1012,18 +1012,25 @@ void wc_FreeCertList(WC_DerCertList* list, void* heap)
(void)heap;
}
static void freeDecCertList(WC_DerCertList** list, byte** pkey, word32* pkeySz,
byte** cert, word32* certSz, void* heap)
static WARN_UNUSED_RESULT int freeDecCertList(WC_DerCertList** list,
byte** pkey, word32* pkeySz, byte** cert, word32* certSz, void* heap)
{
WC_DerCertList* current = *list;
WC_DerCertList* previous = NULL;
DecodedCert DeCert;
#ifdef WOLFSSL_SMALL_STACK
DecodedCert *DeCert = (DecodedCert *)XMALLOC(
sizeof(*DeCert), heap, DYNAMIC_TYPE_PKCS);
if (DeCert == NULL)
return MEMORY_E;
#else
DecodedCert DeCert[1];
#endif
while (current != NULL) {
InitDecodedCert(&DeCert, current->buffer, current->bufferSz, heap);
if (ParseCertRelative(&DeCert, CERT_TYPE, NO_VERIFY, NULL) == 0) {
if (wc_CheckPrivateKeyCert(*pkey, *pkeySz, &DeCert) == 1) {
InitDecodedCert(DeCert, current->buffer, current->bufferSz, heap);
if (ParseCertRelative(DeCert, CERT_TYPE, NO_VERIFY, NULL) == 0) {
if (wc_CheckPrivateKeyCert(*pkey, *pkeySz, DeCert) == 1) {
WOLFSSL_MSG("Key Pair found");
*cert = current->buffer;
*certSz = current->bufferSz;
@ -1034,16 +1041,22 @@ static void freeDecCertList(WC_DerCertList** list, byte** pkey, word32* pkeySz,
else {
previous->next = current->next;
}
FreeDecodedCert(&DeCert);
FreeDecodedCert(DeCert);
XFREE(current, heap, DYNAMIC_TYPE_PKCS);
break;
}
}
FreeDecodedCert(&DeCert);
FreeDecodedCert(DeCert);
previous = current;
current = current->next;
}
#ifdef WOLFSSL_SMALL_STACK
XFREE(DeCert, heap, DYNAMIC_TYPE_PKCS);
#endif
return 0;
}
@ -1446,7 +1459,10 @@ int wc_PKCS12_parse(WC_PKCS12* pkcs12, const char* psw,
/* check if key pair, remove from list */
if (*pkey != NULL) {
freeDecCertList(&certList, pkey, pkeySz, cert, certSz, pkcs12->heap);
ret = freeDecCertList(&certList, pkey, pkeySz, cert, certSz,
pkcs12->heap);
if (ret < 0)
goto exit_pk12par;
}
/* if ca arg provided return certList, otherwise free it */