Accessing REQUEST structure data outside FreeRADIUS module
Nicolas Castel
nicolas.castel at gmail.com
Wed Apr 12 10:22:13 CEST 2006
Hello and thanks for replies
I'm using FreeRADIUS v1.1.0. I'm developping some modules and I try to
access auth_req structure (REQUEST) data from an external function (out of
my module) and it fails. All works fine when accessing this data from the
module itself but when i call an external function with the address of
REQUEST, it doesn't work.
Code which works
/***********************************************************************/
static int wcp_lt_vms_authorize(void *pt_instance, REQUEST *pt_request) {
VALUE_PAIR *lpt_value_pair = NULL;
...
if ((lpt_value_pair = pairfind(pt_request->packet->vps, PW_USER_NAME)) ==
NULL ) {
WCP_DEBUG("User-Name not found !");
} else {
WCP_DEBUG("RADIUS attribute name %s, value: [%s]",
lpt_value_pair->name,
lpt_value_pair->strvalue);
}
...
}
/***********************************************************************/
This works fine, when the server receive a request
Tue Apr 11 16:05:03 2006 : wcp_lt_vms_authorize: RADIUS attribute name
User-Name, value: [330001]
The problem comes when doing the same thing but by calling a function.
/***********************************************************************/
static int wcp_lt_vms_authorize(void *pt_instance, REQUEST *pt_request) {
...
lib_com_filter_traffic(pt_request);
...
}
/***********************************************************************/
and in anotherfile, lib_com.c
int lib_com_filter_traffic(REQUEST *pt_request) {
VALUE_PAIR *lpt_value_pair = NULL;
...
if ((lpt_value_pair = pairfind(pt_request->packet->vps, PW_USER_NAME)) ==
NULL ) {
WCP_DEBUG("User-Name not found !");
} else {
WCP_DEBUG("RADIUS attribute name %s, value: [%s]",
lpt_value_pair->name,
lpt_value_pair->strvalue);
}
/***********************************************************************/
This doesn't work. when receiving one request, FreeRADIUS takes a lot of
processor time and then the server crashes.
Tue Apr 11 17:00:30 2006 : Error: WARNING: Unresponsive child (id 3) for
request 0
I don't understand why all works when accessing REQUEST data inside the
module and not in the lib function. It's like the lib can't accessed to this
memory.
Any help would be appreciated.
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