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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include "networkd-address.h"
#include "networkd-address-label.h"
#include "networkd-bridge-fdb.h"
#include "networkd-bridge-mdb.h"
#include "networkd-dhcp-server.h"
#include "networkd-ipv6-proxy-ndp.h"
#include "networkd-manager.h"
#include "networkd-neighbor.h"
#include "networkd-nexthop.h"
#include "networkd-route.h"
#include "networkd-routing-policy-rule.h"
#include "networkd-queue.h"
static void request_free_object(RequestType type, void *object) {
switch(type) {
case REQUEST_TYPE_ADDRESS:
address_free(object);
break;
case REQUEST_TYPE_ADDRESS_LABEL:
address_label_free(object);
break;
case REQUEST_TYPE_BRIDGE_FDB:
bridge_fdb_free(object);
break;
case REQUEST_TYPE_BRIDGE_MDB:
bridge_mdb_free(object);
break;
case REQUEST_TYPE_DHCP_SERVER:
break;
case REQUEST_TYPE_IPV6_PROXY_NDP:
free(object);
break;
case REQUEST_TYPE_NEIGHBOR:
neighbor_free(object);
break;
case REQUEST_TYPE_NEXTHOP:
nexthop_free(object);
break;
case REQUEST_TYPE_ROUTE:
route_free(object);
break;
case REQUEST_TYPE_ROUTING_POLICY_RULE:
routing_policy_rule_free(object);
break;
default:
assert_not_reached("invalid request type.");
}
}
Request *request_free(Request *req) {
if (!req)
return NULL;
if (req->on_free)
req->on_free(req);
if (req->consume_object)
request_free_object(req->type, req->object);
if (req->link && req->link->manager)
ordered_set_remove(req->link->manager->request_queue, req);
link_unref(req->link);
return mfree(req);
}
DEFINE_TRIVIAL_CLEANUP_FUNC(Request*, request_free);
void request_drop(Request *req) {
if (req->message_counter)
(*req->message_counter)--;
request_free(req);
}
int link_queue_request(
Link *link,
RequestType type,
void *object,
bool consume_object,
unsigned *message_counter,
link_netlink_message_handler_t netlink_handler,
Request **ret) {
_cleanup_(request_freep) Request *req = NULL;
int r;
assert(link);
assert(link->manager);
assert(type >= 0 && type < _REQUEST_TYPE_MAX);
if (type != REQUEST_TYPE_DHCP_SERVER) {
assert(object);
assert(netlink_handler);
}
req = new(Request, 1);
if (!req) {
if (consume_object)
request_free_object(type, object);
return -ENOMEM;
}
*req = (Request) {
.link = link,
.type = type,
.object = object,
.consume_object = consume_object,
.message_counter = message_counter,
.netlink_handler = netlink_handler,
};
link_ref(link);
r = ordered_set_ensure_put(&link->manager->request_queue, NULL, req);
if (r < 0)
return r;
if (req->message_counter)
(*req->message_counter)++;
if (ret)
*ret = req;
TAKE_PTR(req);
return 0;
}
int manager_process_requests(sd_event_source *s, void *userdata) {
Manager *manager = userdata;
int r;
assert(manager);
for (;;) {
bool processed = false;
Request *req;
ORDERED_SET_FOREACH(req, manager->request_queue) {
switch(req->type) {
case REQUEST_TYPE_ADDRESS:
r = request_process_address(req);
break;
case REQUEST_TYPE_ADDRESS_LABEL:
r = request_process_address_label(req);
break;
case REQUEST_TYPE_BRIDGE_FDB:
r = request_process_bridge_fdb(req);
break;
case REQUEST_TYPE_BRIDGE_MDB:
r = request_process_bridge_mdb(req);
break;
case REQUEST_TYPE_DHCP_SERVER:
r = request_process_dhcp_server(req);
break;
case REQUEST_TYPE_IPV6_PROXY_NDP:
r = request_process_ipv6_proxy_ndp_address(req);
break;
case REQUEST_TYPE_NEIGHBOR:
r = request_process_neighbor(req);
break;
case REQUEST_TYPE_NEXTHOP:
r = request_process_nexthop(req);
break;
case REQUEST_TYPE_ROUTE:
r = request_process_route(req);
break;
case REQUEST_TYPE_ROUTING_POLICY_RULE:
r = request_process_routing_policy_rule(req);
break;
default:
return -EINVAL;
}
if (r < 0)
link_enter_failed(req->link);
if (r > 0) {
ordered_set_remove(manager->request_queue, req);
request_free(req);
processed = true;
}
}
if (!processed)
break;
}
return 0;
}
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