PermissionsData_t *perm_create (Permissions_t perm, DDS_ReturnCode_t *ret)
{
PermissionsData_t *p;
unsigned h;
p = perm_lookup (perm, &h);
if (p) {
*ret = DDS_RETCODE_OK;
return (p);
}
p = perm_new (perm);
if (!p) {
*ret = DDS_RETCODE_OUT_OF_RESOURCES;
return (NULL);
}
perm_add (p, h);
*ret = DDS_RETCODE_OK;
return (p);
}
void perm_release (Permissions_t perm)
{
unsigned h;
perm_free (perm_lookup (perm, &h));
}
static Token_t *sd_get_perm_token (const SEC_PERM *pp, Permissions_t perm)
{
Token_t *token;
DDS_IdentityToken *tp;
DDS_OctetSeq *p;
PermissionsData_t *pdp;
DDS_SecurityReqData data;
char buf [128];
char *bp;
MD5_CONTEXT md5;
DDS_ReturnCode_t ret;
ARG_NOT_USED (pp)
token = xmalloc (sizeof (Token_t));
if (!token)
return (NULL);
pdp = perm_lookup (perm, NULL);
if (!pdp)
goto no_perm;
data.handle = pdp->id;
data.data = NULL;
data.length = 0;
ret = sec_authentication_request (DDS_GET_ID_NAME, &data);
if (ret || !data.rlength)
goto no_perm;
if (data.rlength >= sizeof (buf)) {
bp = Alloc (data.rlength);
if (!bp)
goto no_perm;
}
else
bp = buf;
data.handle = pdp->id;
data.data = bp;
data.length = data.rlength;
ret = sec_authentication_request (DDS_GET_ID_NAME, &data);
if (ret)
goto done;
tp = DDS_DataHolder__alloc (GMCLASSID_SECURITY_DTLS_PERM_TOKEN);
if (!tp)
goto done;
tp->binary_value1 = p = DDS_OctetSeq__alloc ();
if (!p)
goto out_of_mem;
ret = dds_seq_require (p, 16);
if (ret) {
DDS_DataHolder__free (tp);
return (NULL);
}
md5_init (&md5);
md5_update (&md5, (unsigned char *) bp, strlen (bp));
md5_final (DDS_SEQ_DATA (*p), &md5);
if (bp != buf)
Free (bp);
token->data = tp;
token->encoding = PID_V_PERMS;
token->integral = 0;
token->nusers = 1;
token->next = NULL;
return (token);
out_of_mem:
DDS_DataHolder__free (tp);
done:
if (bp != buf)
Free (bp);
no_perm:
xfree (token);
return (NULL);
}
