SmlPcdataPtr_t create_chal_meta(dmclt_authType_t type,
buffer_t * nonceP)
{
SmlMetInfMetInfPtr_t metInfP;
SmlPcdataPtr_t metaP;
metInfP = smlAllocMetInfMetInf();
if (!metInfP) return NULL;
metInfP->type = smlString2Pcdata(auth_type_as_string(type));
metInfP->format = smlString2Pcdata("b64");
if (nonceP)
{
char * tmp = encode_b64(*nonceP);
metInfP->nextnonce = smlString2Pcdata(tmp);
free(tmp);
}
metaP = smlAllocPcdata();
if (!metaP)
{
smlFreeMetinfMetinf(metInfP);
return NULL;
}
metaP->contentType = SML_PCDATA_EXTENSION;
metaP->extension = SML_EXT_METINF;
metaP->length = 0;
metaP->content = metInfP;
return metaP;
}
SmlChalPtr_t get_challenge(authDesc_t * authP)
{
SmlPcdataPtr_t metaP;
SmlChalPtr_t chalP;
switch (authP->type)
{
case AUTH_TYPE_BASIC:
metaP = create_chal_meta(authP->type, NULL);
break;
case AUTH_TYPE_DIGEST:
{
int nonce;
srand(time(0));
nonce = rand();
if (authP->data.buffer) free(authP->data.buffer);
authP->data.buffer = (uint8_t *)&nonce;
authP->data.len = 8;
authP->data.buffer = (uint8_t *)encode_b64(authP->data);
authP->data.len = strlen((const char *)(authP->data.buffer));
metaP = create_chal_meta(authP->type, &(authP->data));
}
break;
default:
metaP = NULL;
break;
}
if (metaP)
{
chalP = (SmlChalPtr_t)malloc(sizeof(SmlChal_t));
if(chalP)
{
chalP->meta = metaP;
}
else
{
smlFreePcdata(metaP);
}
}
else
{
chalP = NULL;
}
return chalP;
}