static fr_io_final_t mod_process(UNUSED void const *instance, REQUEST *request, fr_io_action_t action)
{
rlm_rcode_t rcode;
CONF_SECTION *unlang;
REQUEST_VERIFY(request);
/*
* Pass this through asynchronously to the module which
* is waiting for something to happen.
*/
if (action != FR_IO_ACTION_RUN) {
unlang_signal(request, (fr_state_signal_t) action);
return FR_IO_DONE;
}
switch (request->request_state) {
case REQUEST_INIT:
request->component = "radius";
unlang = cf_section_find(request->server_cs, "new", "client");
if (!unlang) {
RWDEBUG("Failed to find 'new client' section");
request->reply->code = FR_CODE_ACCESS_REJECT;
goto send_reply;
}
RDEBUG("Running 'new client' from file %s", cf_filename(unlang));
unlang_push_section(request, unlang, RLM_MODULE_NOOP, UNLANG_TOP_FRAME);
request->request_state = REQUEST_RECV;
/* FALL-THROUGH */
case REQUEST_RECV:
rcode = unlang_interpret_resume(request);
if (request->master_state == REQUEST_STOP_PROCESSING) return FR_IO_DONE;
if (rcode == RLM_MODULE_YIELD) return FR_IO_YIELD;
rad_assert(request->log.unlang_indent == 0);
switch (rcode) {
case RLM_MODULE_OK:
case RLM_MODULE_UPDATED:
request->reply->code = FR_CODE_ACCESS_ACCEPT;
break;
case RLM_MODULE_FAIL:
case RLM_MODULE_HANDLED:
request->reply->code = 0; /* don't reply */
break;
default:
case RLM_MODULE_REJECT:
request->reply->code = FR_CODE_ACCESS_REJECT;
break;
}
unlang = cf_section_find(request->server_cs, "add", "client");
if (!unlang) goto send_reply;
rerun_nak:
RDEBUG("Running '%s client' from file %s", cf_section_name1(unlang), cf_filename(unlang));
unlang_push_section(request, unlang, RLM_MODULE_NOOP, UNLANG_TOP_FRAME);
request->request_state = REQUEST_SEND;
/* FALL-THROUGH */
case REQUEST_SEND:
rcode = unlang_interpret_resume(request);
if (request->master_state == REQUEST_STOP_PROCESSING) return FR_IO_DONE;
if (rcode == RLM_MODULE_YIELD) return FR_IO_YIELD;
rad_assert(request->log.unlang_indent == 0);
switch (rcode) {
case RLM_MODULE_NOOP:
case RLM_MODULE_OK:
case RLM_MODULE_UPDATED:
case RLM_MODULE_HANDLED:
/* reply is already set */
break;
default:
/*
* If we over-ride an ACK with a NAK, run
* the NAK section.
*/
if (request->reply->code != FR_CODE_ACCESS_REJECT) {
RWDEBUG("Failed running 'add client', trying 'deny client'.");
deny:
request->reply->code = FR_CODE_ACCESS_REJECT;
unlang = cf_section_find(request->server_cs, "deny", "client");
if (unlang) goto rerun_nak;
RWDEBUG("Not running 'deny client' section as it does not exist");
}
break;
}
if (request->reply->code == FR_CODE_ACCESS_ACCEPT) {
VALUE_PAIR *vp;
vp = fr_pair_find_by_da(request->control, attr_freeradius_client_ip_address, TAG_ANY);
if (!vp) fr_pair_find_by_da(request->control, attr_freeradius_client_ipv6_address, TAG_ANY);
if (!vp) fr_pair_find_by_da(request->control, attr_freeradius_client_ip_prefix, TAG_ANY);
if (!vp) fr_pair_find_by_da(request->control, attr_freeradius_client_ipv6_prefix, TAG_ANY);
if (!vp) {
ERROR("The 'control' list MUST contain a FreeRADIUS-Client.. IP address attribute");
goto deny;
}
vp = fr_pair_find_by_da(request->control, attr_freeradius_client_secret, TAG_ANY);
if (!vp) {
ERROR("The 'control' list MUST contain a FreeRADIUS-Client-Secret attribute");
goto deny;
}
/*
* Else we're flexible.
*/
}
send_reply:
/*
* This is an internally generated request. Don't print IP addresses.
*/
if (request->reply->code == FR_CODE_ACCESS_ACCEPT) {
RDEBUG("Adding client");
} else {
RDEBUG("Denying client");
}
break;
default:
return FR_IO_FAIL;
}
return FR_IO_REPLY;
}
static fr_io_final_t mod_process(UNUSED void const *instance, REQUEST *request, fr_io_action_t action)
{
VALUE_PAIR *vp;
rlm_rcode_t rcode;
CONF_SECTION *unlang;
REQUEST_VERIFY(request);
/*
* Pass this through asynchronously to the module which
* is waiting for something to happen.
*/
if (action != FR_IO_ACTION_RUN) {
unlang_signal(request, (fr_state_signal_t) action);
return FR_IO_DONE;
}
switch (request->request_state) {
case REQUEST_INIT:
RDEBUG("Received %s ID %i",
fr_dict_enum_alias_by_value(attr_packet_type, fr_box_uint32(request->reply->code)),
request->packet->id);
log_request_pair_list(L_DBG_LVL_1, request, request->packet->vps, "");
request->component = "radius";
unlang = cf_section_find(request->server_cs, "recv", NULL);
if (!unlang) {
REDEBUG("Failed to find 'recv' section");
return FR_IO_FAIL;
}
RDEBUG("Running 'recv' from file %s", cf_filename(unlang));
unlang_push_section(request, unlang, RLM_MODULE_NOOP, UNLANG_TOP_FRAME);
request->request_state = REQUEST_RECV;
/* FALL-THROUGH */
case REQUEST_RECV:
rcode = unlang_interpret_continue(request);
if (request->master_state == REQUEST_STOP_PROCESSING) return FR_IO_DONE;
if (rcode == RLM_MODULE_YIELD) return FR_IO_YIELD;
rad_assert(request->log.unlang_indent == 0);
switch (rcode) {
/*
* The module has a number of OK return codes.
*/
case RLM_MODULE_OK:
case RLM_MODULE_UPDATED:
switch (request->packet->code) {
case FR_CODE_ACCOUNTING_REQUEST:
request->reply->code = FR_CODE_ACCOUNTING_RESPONSE;
break;
case FR_CODE_COA_REQUEST:
request->reply->code = FR_CODE_COA_ACK;
break;
case FR_CODE_DISCONNECT_REQUEST:
request->reply->code = FR_CODE_DISCONNECT_ACK;
break;
default:
request->reply->code = 0;
break;
}
break;
case RLM_MODULE_HANDLED:
break;
/*
* The module failed, or said the request is
* invalid, therefore we stop here.
*/
case RLM_MODULE_NOOP:
case RLM_MODULE_FAIL:
case RLM_MODULE_INVALID:
case RLM_MODULE_NOTFOUND:
case RLM_MODULE_REJECT:
case RLM_MODULE_USERLOCK:
default:
request->reply->code = 0;
break;
}
/*
* Allow for over-ride of reply code.
*/
vp = fr_pair_find_by_da(request->reply->vps, attr_packet_type, TAG_ANY);
if (vp) request->reply->code = vp->vp_uint32;
if (request->reply->code == FR_CODE_DO_NOT_RESPOND) {
RWARN("Ignoring 'do_not_respond' as it does not apply to detail files");
}
unlang = cf_section_find(request->server_cs, "send", "ok");
if (!unlang) goto send_reply;
RDEBUG("Running 'send %s { ... }' from file %s", cf_section_name2(unlang), cf_filename(unlang));
unlang_push_section(request, unlang, RLM_MODULE_NOOP, UNLANG_TOP_FRAME);
request->request_state = REQUEST_SEND;
/* FALL-THROUGH */
case REQUEST_SEND:
rcode = unlang_interpret_continue(request);
if (request->master_state == REQUEST_STOP_PROCESSING) return FR_IO_DONE;
if (rcode == RLM_MODULE_YIELD) return FR_IO_YIELD;
rad_assert(request->log.unlang_indent == 0);
switch (rcode) {
case RLM_MODULE_NOOP:
case RLM_MODULE_OK:
case RLM_MODULE_UPDATED:
case RLM_MODULE_HANDLED:
/* reply is already set */
break;
default:
request->reply->code = 0;
break;
}
send_reply:
/*
* Failed, but we still reply with a magic code,
* so that the reader can retransmit.
*/
if (!request->reply->code) {
REDEBUG("Failed ID %i", request->reply->id);
} else {
RDEBUG("Sent %s ID %i",
fr_dict_enum_alias_by_value(attr_packet_type, fr_box_uint32(request->reply->code)),
request->reply->id);
}
log_request_proto_pair_list(L_DBG_LVL_1, request, request->reply->vps, "");
break;
default:
return FR_IO_FAIL;
}
return FR_IO_REPLY;
}
/** Very simple state machine to process requests
*
* Unlike normal protocol requests which may have multiple distinct states,
* we really only have REQUEST_INIT and REQUEST_RECV phases.
*
* Conversion of LDAPMessage to VALUE_PAIR structs is done in the listener
* because we cannot easily duplicate the LDAPMessage to send it across to
* the worker for parsing.
*
* Most LDAP directories can only handle between 2000-5000 modifications a second
* so we're unlikely to be I/O or CPU bound using this division of responsibilities.
*
* @param[in] request to process.
* @param[in] action If something has signalled that the request should stop
* being processed.
*/
static void request_running(REQUEST *request, fr_state_signal_t action)
{
CONF_SECTION *unlang;
char const *verb;
char const *state;
rlm_rcode_t rcode = RLM_MODULE_FAIL;
REQUEST_VERIFY(request);
/*
* Async (in the same thread, tho) signal to be done.
*/
if (action == FR_SIGNAL_CANCEL) goto done;
/*
* We ignore all other actions.
*/
if (action != FR_SIGNAL_RUN) return;
switch (request->request_state) {
case REQUEST_INIT:
if (RDEBUG_ENABLED) proto_ldap_packet_debug(request, request->packet, true);
log_request_proto_pair_list(L_DBG_LVL_1, request, request->packet->vps, "");
request->server_cs = request->listener->server_cs;
request->component = "ldap";
switch (request->packet->code) {
case LDAP_SYNC_CODE_PRESENT:
verb = "recv";
state = "Present";
break;
case LDAP_SYNC_CODE_ADD:
verb = "recv";
state = "Add";
break;
case LDAP_SYNC_CODE_MODIFY:
verb = "recv";
state = "Modify";
break;
case LDAP_SYNC_CODE_DELETE:
verb = "recv";
state = "Delete";
break;
case LDAP_SYNC_CODE_COOKIE_LOAD:
verb = "load";
state = "Cookie";
break;
case LDAP_SYNC_CODE_COOKIE_STORE:
verb = "store";
state = "Cookie";
break;
default:
rad_assert(0);
return;
}
unlang = cf_section_find(request->server_cs, verb, state);
if (!unlang) unlang = cf_section_find(request->server_cs, "recv", "*");
if (!unlang) {
RDEBUG2("Ignoring %s operation. Add \"%s %s {}\" to virtual-server \"%s\""
" to handle", fr_int2str(ldap_sync_code_table, request->packet->code, "<INVALID>"),
verb, state, cf_section_name2(request->server_cs));
rcode = RLM_MODULE_NOOP;
goto done;
}
RDEBUG("Running '%s %s' from file %s", cf_section_name1(unlang),
cf_section_name2(unlang), cf_filename(unlang));
unlang_push_section(request, unlang, RLM_MODULE_NOOP, UNLANG_TOP_FRAME);
request->request_state = REQUEST_RECV;
/* FALL-THROUGH */
case REQUEST_RECV:
rcode = unlang_interpret_resume(request);
if (request->master_state == REQUEST_STOP_PROCESSING) goto done;
if (rcode == RLM_MODULE_YIELD) return;
/* FALL-THROUGH */
default:
done:
switch (rcode) {
case RLM_MODULE_UPDATED:
case RLM_MODULE_OK:
{
}
default:
break;
}
rad_assert(request->log.unlang_indent == 0);
//request_delete(request);
break;
}
}
static fr_io_final_t mod_process(UNUSED void const *instance, REQUEST *request, UNUSED fr_io_action_t action)
{
rlm_rcode_t rcode;
CONF_SECTION *unlang;
fr_dict_enum_t const *dv;
fr_dict_attr_t const *da = NULL;
VALUE_PAIR *vp;
REQUEST_VERIFY(request);
rad_assert(request->packet->code > 0);
rad_assert(request->packet->code <= FR_DHCP_INFORM);
switch (request->request_state) {
case REQUEST_INIT:
RDEBUG("Received %s ID %08x", dhcp_message_types[request->packet->code], request->packet->id);
log_request_proto_pair_list(L_DBG_LVL_1, request, request->packet->vps, "");
request->component = "dhcpv4";
dv = fr_dict_enum_by_value(attr_message_type, fr_box_uint8(request->packet->code));
if (!dv) {
REDEBUG("Failed to find value for &request:DHCP-Message-Type");
return FR_IO_FAIL;
}
unlang = cf_section_find(request->server_cs, "recv", dv->alias);
if (!unlang) {
RWDEBUG("Failed to find 'recv %s' section", dv->alias);
request->reply->code = FR_DHCP_MESSAGE_TYPE_VALUE_DHCP_DO_NOT_RESPOND;
goto send_reply;
}
RDEBUG("Running 'recv %s' from file %s", cf_section_name2(unlang), cf_filename(unlang));
unlang_push_section(request, unlang, RLM_MODULE_NOOP, UNLANG_TOP_FRAME);
request->request_state = REQUEST_RECV;
/* FALL-THROUGH */
case REQUEST_RECV:
rcode = unlang_interpret_continue(request);
if (request->master_state == REQUEST_STOP_PROCESSING) return FR_IO_DONE;
if (rcode == RLM_MODULE_YIELD) return FR_IO_YIELD;
rad_assert(request->log.unlang_indent == 0);
/*
* Allow the admin to explicitly set the reply
* type.
*/
vp = fr_pair_find_by_da(request->reply->vps, attr_message_type, TAG_ANY);
if (vp) {
request->reply->code = vp->vp_uint8;
} else switch (rcode) {
case RLM_MODULE_NOOP:
case RLM_MODULE_OK:
case RLM_MODULE_UPDATED:
request->reply->code = reply_ok[request->packet->code];
break;
default:
case RLM_MODULE_REJECT:
case RLM_MODULE_FAIL:
request->reply->code = reply_fail[request->packet->code];
break;
case RLM_MODULE_HANDLED:
if (!request->reply->code) request->reply->code = FR_DHCP_MESSAGE_TYPE_VALUE_DHCP_DO_NOT_RESPOND;
break;
}
/*
* DHCP-Release / Decline doesn't send a reply, and doesn't run "send DHCP-Do-Not-Respond"
*/
if (!request->reply->code) {
return FR_IO_DONE;
}
/*
* Offer and ACK MUST have YIADDR.
*/
if ((request->reply->code == FR_DHCP_OFFER) || (request->reply->code == FR_DHCP_ACK)) {
vp = fr_pair_find_by_da(request->reply->vps, attr_yiaddr, TAG_ANY);
if (!vp) {
REDEBUG("%s packet does not have YIADDR. The client will not receive an IP address.",
dhcp_message_types[request->reply->code]);
}
}
dv = fr_dict_enum_by_value(da, fr_box_uint8(request->reply->code));
unlang = NULL;
if (dv) unlang = cf_section_find(request->server_cs, "send", dv->alias);
if (!unlang) goto send_reply;
rerun_nak:
RDEBUG("Running 'send %s' from file %s", cf_section_name2(unlang), cf_filename(unlang));
unlang_push_section(request, unlang, RLM_MODULE_NOOP, UNLANG_TOP_FRAME);
request->request_state = REQUEST_SEND;
/* FALL-THROUGH */
case REQUEST_SEND:
rcode = unlang_interpret_continue(request);
if (request->master_state == REQUEST_STOP_PROCESSING) return FR_IO_DONE;
if (rcode == RLM_MODULE_YIELD) return FR_IO_YIELD;
rad_assert(request->log.unlang_indent == 0);
switch (rcode) {
case RLM_MODULE_NOOP:
case RLM_MODULE_OK:
case RLM_MODULE_UPDATED:
case RLM_MODULE_HANDLED:
/* reply is already set */
break;
default:
/*
* If we over-ride an ACK with a NAK, run
* the NAK section.
*/
if (request->reply->code != FR_DHCP_MESSAGE_TYPE_VALUE_DHCP_DO_NOT_RESPOND) {
dv = fr_dict_enum_by_value(attr_message_type, fr_box_uint8(request->reply->code));
RWDEBUG("Failed running 'send %s', trying 'send Do-Not-Respond'", dv->alias);
request->reply->code = FR_DHCP_MESSAGE_TYPE_VALUE_DHCP_DO_NOT_RESPOND;
dv = fr_dict_enum_by_value(da, fr_box_uint8(request->reply->code));
unlang = NULL;
if (!dv) goto send_reply;
unlang = cf_section_find(request->server_cs, "send", dv->alias);
if (unlang) goto rerun_nak;
RWDEBUG("Not running 'send %s' section as it does not exist", dv->alias);
}
break;
}
send_reply:
/*
* Check for "do not respond".
*/
if (request->reply->code == FR_DHCP_MESSAGE_TYPE_VALUE_DHCP_DO_NOT_RESPOND) {
RDEBUG("Not sending reply to client");
return FR_IO_DONE;
}
if (RDEBUG_ENABLED) common_packet_debug(request, request->reply, false);
break;
default:
return FR_IO_FAIL;
}
return FR_IO_REPLY;
}
