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#include "xauth_request.h"
#include <daemon.h>
#include <hydra.h>
#include <encoding/payloads/cp_payload.h>
typedef struct private_xauth_request_t private_xauth_request_t;
enum {
XAUTH_STATUS_FAIL = 0,
XAUTH_STATUS_OK = 1,
};
/**
* Private members of a xauth_request_t task.
*/
struct private_xauth_request_t {
/**
* Public methods and task_t interface.
*/
xauth_request_t public;
/**
* Assigned IKE_SA.
*/
ike_sa_t *ike_sa;
/**
* Are we the initiator?
*/
bool initiator;
/**
* virtual ip
*/
host_t *virtual_ip;
/**
* list of attributes requested and its handler, entry_t
*/
linked_list_t *requested;
/**
* The user name
*/
chunk_t user_name;
/**
* The user pass
*/
chunk_t user_pass;
/**
* The current state of the task
*/
enum {
TASK_XAUTH_INIT,
TASK_XAUTH_PASS_DONE,
} state;
/**
* The status of the XAuth request
*/
status_t status;
};
/**
* Entry for a requested attribute and the requesting handler
*/
typedef struct {
/** attribute requested */
configuration_attribute_type_t type;
/** handler requesting this attribute */
attribute_handler_t *handler;
} entry_t;
METHOD(task_t, build_i, status_t,
private_xauth_request_t *this, message_t *message)
{
cp_payload_t *cp;
chunk_t chunk = chunk_empty;
switch(this->state)
{
case TASK_XAUTH_INIT:
cp = cp_payload_create_type(CONFIGURATION_V1, CFG_REQUEST);
cp->add_attribute(cp, configuration_attribute_create_chunk(
CONFIGURATION_ATTRIBUTE_V1, XAUTH_USER_NAME, chunk));
cp->add_attribute(cp, configuration_attribute_create_chunk(
CONFIGURATION_ATTRIBUTE_V1, XAUTH_USER_PASSWORD, chunk));
break;
case TASK_XAUTH_PASS_DONE:
cp = cp_payload_create_type(CONFIGURATION_V1, CFG_SET);
cp->add_attribute(cp, configuration_attribute_create_value(
XAUTH_STATUS,
(this->status == FAILED ? XAUTH_STATUS_FAIL : XAUTH_STATUS_OK)));
break;
default:
return FAILED;
}
/* Add the payloads into the message */
message->add_payload(message, (payload_t *)cp);
return NEED_MORE;
}
METHOD(task_t, process_r, status_t,
private_xauth_request_t *this, message_t *message)
{
return NEED_MORE;
}
METHOD(task_t, build_r, status_t,
private_xauth_request_t *this, message_t *message)
{
return NEED_MORE;
}
METHOD(task_t, process_i, status_t,
private_xauth_request_t *this, message_t *message)
{
cp_payload_t *cp_payload;
enumerator_t *enumerator;
configuration_attribute_t *ca;
chunk_t status_chunk = chunk_empty;
cp_payload = (cp_payload_t *)message->get_payload(message, CONFIGURATION_V1);
enumerator = cp_payload->create_attribute_enumerator(cp_payload);
while (enumerator->enumerate(enumerator, &ca))
{
switch(ca->get_type(ca))
{
case XAUTH_USER_NAME:
this->user_name = ca->get_chunk(ca);
break;
case XAUTH_USER_PASSWORD:
this->user_pass = ca->get_chunk(ca);
break;
case XAUTH_STATUS:
status_chunk = ca->get_chunk(ca);
break;
default:
DBG3(DBG_IKE, "Unknown config attribute type %d, ignored", ca->get_type(ca));
}
}
enumerator->destroy(enumerator);
switch(this->state)
{
case TASK_XAUTH_INIT:
if(cp_payload->get_type(cp_payload) != CFG_REPLY)
{
DBG1(DBG_IKE, "ERROR: ConfigMode payload is not a reply");
return FAILED;
}
this->state = TASK_XAUTH_PASS_DONE;
if((this->user_name.len == 0) || (this->user_pass.len == 0))
{
DBG1(DBG_IKE, "ERROR: Did not get user name or user pass, aborting");
this->status = FAILED;
/* We should close out the XAuth negotiation cleanly by sending a "failed" message */
return NEED_MORE;
}
/* TODO-IKEv1: Do actual user/pass verification */
// if(!chunk_compare(this->user_name, this->user_pass))
// {
// this->status = FAILED;
// DBG1(DBG_IKE, "ERROR: user/pass verification failure");
/* We should close out the XAuth negotiation cleanly by sending a "failed" message */
// return NEED_MORE;
// }
this->status = SUCCESS;
return NEED_MORE;
case TASK_XAUTH_PASS_DONE:
if(cp_payload->get_type(cp_payload) != CFG_ACK)
{
DBG1(DBG_IKE, "ERROR: ConfigMode payload is not a status ack");
return FAILED;
}
if(status_chunk.len != 0)
{
DBG1(DBG_IKE, "Status payload of an ack had data, hmm....");
}
DBG1(DBG_IKE, "Done with XAUTH!!!");
return this->status;
}
return FAILED;
}
METHOD(task_t, get_type, task_type_t,
private_xauth_request_t *this)
{
return TASK_XAUTH_REQUEST;
}
METHOD(task_t, migrate, void,
private_xauth_request_t *this, ike_sa_t *ike_sa)
{
DESTROY_IF(this->virtual_ip);
this->ike_sa = ike_sa;
this->virtual_ip = NULL;
this->requested->destroy_function(this->requested, free);
this->requested = linked_list_create();
}
METHOD(task_t, destroy, void,
private_xauth_request_t *this)
{
DESTROY_IF(this->virtual_ip);
this->requested->destroy_function(this->requested, free);
free(this);
}
/*
* Described in header.
*/
xauth_request_t *xauth_request_create(ike_sa_t *ike_sa, bool initiator)
{
private_xauth_request_t *this;
INIT(this,
.public = {
.task = {
.get_type = _get_type,
.migrate = _migrate,
.destroy = _destroy,
},
},
.initiator = initiator,
.ike_sa = ike_sa,
.requested = linked_list_create(),
.user_name = chunk_empty,
.user_pass = chunk_empty,
.state = TASK_XAUTH_INIT,
);
if (initiator)
{
this->public.task.build = _build_i;
this->public.task.process = _process_i;
}
else
{
this->public.task.build = _build_r;
this->public.task.process = _process_r;
}
return &this->public;
}
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