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/* SPDX-License-Identifier: LGPL-2.1+ */
#include <net/if.h>
#include <netinet/in.h>
#include <sys/capability.h>
#include "alloc-util.h"
#include "bus-common-errors.h"
#include "bus-message-util.h"
#include "bus-polkit.h"
#include "networkd-link-bus.h"
#include "networkd-link.h"
#include "networkd-manager-bus.h"
#include "networkd-manager.h"
#include "path-util.h"
#include "socket-netlink.h"
#include "strv.h"
#include "user-util.h"
static int method_list_links(sd_bus_message *message, void *userdata, sd_bus_error *error) {
_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
Manager *manager = userdata;
Link *link;
int r;
r = sd_bus_message_new_method_return(message, &reply);
if (r < 0)
return r;
r = sd_bus_message_open_container(reply, 'a', "(iso)");
if (r < 0)
return r;
HASHMAP_FOREACH(link, manager->links) {
_cleanup_free_ char *path = NULL;
path = link_bus_path(link);
if (!path)
return -ENOMEM;
r = sd_bus_message_append(
reply, "(iso)",
link->ifindex,
link->ifname,
empty_to_root(path));
if (r < 0)
return r;
}
r = sd_bus_message_close_container(reply);
if (r < 0)
return r;
return sd_bus_send(NULL, reply, NULL);
}
static int method_get_link_by_name(sd_bus_message *message, void *userdata, sd_bus_error *error) {
_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
_cleanup_free_ char *path = NULL;
Manager *manager = userdata;
const char *name;
int index, r;
Link *link;
r = sd_bus_message_read(message, "s", &name);
if (r < 0)
return r;
index = resolve_ifname(&manager->rtnl, name);
if (index < 0)
return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_LINK, "Link %s cannot be resolved", name);
link = hashmap_get(manager->links, INT_TO_PTR(index));
if (!link)
return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_LINK, "Link %s not known", name);
r = sd_bus_message_new_method_return(message, &reply);
if (r < 0)
return r;
path = link_bus_path(link);
if (!path)
return -ENOMEM;
r = sd_bus_message_append(reply, "io", link->ifindex, empty_to_root(path));
if (r < 0)
return r;
return sd_bus_send(NULL, reply, NULL);
}
static int method_get_link_by_index(sd_bus_message *message, void *userdata, sd_bus_error *error) {
_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
_cleanup_free_ char *path = NULL;
Manager *manager = userdata;
int ifindex, r;
Link *link;
r = bus_message_read_ifindex(message, error, &ifindex);
if (r < 0)
return r;
link = hashmap_get(manager->links, INT_TO_PTR(ifindex));
if (!link)
return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_LINK, "Link %i not known", ifindex);
r = sd_bus_message_new_method_return(message, &reply);
if (r < 0)
return r;
path = link_bus_path(link);
if (!path)
return -ENOMEM;
r = sd_bus_message_append(reply, "so", link->ifname, empty_to_root(path));
if (r < 0)
return r;
return sd_bus_send(NULL, reply, NULL);
}
static int call_link_method(Manager *m, sd_bus_message *message, sd_bus_message_handler_t handler, sd_bus_error *error) {
int ifindex, r;
Link *l;
assert(m);
assert(message);
assert(handler);
r = bus_message_read_ifindex(message, error, &ifindex);
if (r < 0)
return r;
l = hashmap_get(m->links, INT_TO_PTR(ifindex));
if (!l)
return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_LINK, "Link %i not known", ifindex);
return handler(message, l, error);
}
static int bus_method_set_link_ntp_servers(sd_bus_message *message, void *userdata, sd_bus_error *error) {
return call_link_method(userdata, message, bus_link_method_set_ntp_servers, error);
}
static int bus_method_set_link_dns_servers(sd_bus_message *message, void *userdata, sd_bus_error *error) {
return call_link_method(userdata, message, bus_link_method_set_dns_servers, error);
}
static int bus_method_set_link_dns_servers_ex(sd_bus_message *message, void *userdata, sd_bus_error *error) {
return call_link_method(userdata, message, bus_link_method_set_dns_servers_ex, error);
}
static int bus_method_set_link_domains(sd_bus_message *message, void *userdata, sd_bus_error *error) {
return call_link_method(userdata, message, bus_link_method_set_domains, error);
}
static int bus_method_set_link_default_route(sd_bus_message *message, void *userdata, sd_bus_error *error) {
return call_link_method(userdata, message, bus_link_method_set_default_route, error);
}
static int bus_method_set_link_llmnr(sd_bus_message *message, void *userdata, sd_bus_error *error) {
return call_link_method(userdata, message, bus_link_method_set_llmnr, error);
}
static int bus_method_set_link_mdns(sd_bus_message *message, void *userdata, sd_bus_error *error) {
return call_link_method(userdata, message, bus_link_method_set_mdns, error);
}
static int bus_method_set_link_dns_over_tls(sd_bus_message *message, void *userdata, sd_bus_error *error) {
return call_link_method(userdata, message, bus_link_method_set_dns_over_tls, error);
}
static int bus_method_set_link_dnssec(sd_bus_message *message, void *userdata, sd_bus_error *error) {
return call_link_method(userdata, message, bus_link_method_set_dnssec, error);
}
static int bus_method_set_link_dnssec_negative_trust_anchors(sd_bus_message *message, void *userdata, sd_bus_error *error) {
return call_link_method(userdata, message, bus_link_method_set_dnssec_negative_trust_anchors, error);
}
static int bus_method_revert_link_ntp(sd_bus_message *message, void *userdata, sd_bus_error *error) {
return call_link_method(userdata, message, bus_link_method_revert_ntp, error);
}
static int bus_method_revert_link_dns(sd_bus_message *message, void *userdata, sd_bus_error *error) {
return call_link_method(userdata, message, bus_link_method_revert_dns, error);
}
static int bus_method_renew_link(sd_bus_message *message, void *userdata, sd_bus_error *error) {
return call_link_method(userdata, message, bus_link_method_renew, error);
}
static int bus_method_force_renew_link(sd_bus_message *message, void *userdata, sd_bus_error *error) {
return call_link_method(userdata, message, bus_link_method_force_renew, error);
}
static int bus_method_reconfigure_link(sd_bus_message *message, void *userdata, sd_bus_error *error) {
return call_link_method(userdata, message, bus_link_method_reconfigure, error);
}
static int bus_method_reload(sd_bus_message *message, void *userdata, sd_bus_error *error) {
Manager *manager = userdata;
Link *link;
int r;
r = bus_verify_polkit_async(message, CAP_NET_ADMIN,
"org.freedesktop.network1.reload",
NULL, true, UID_INVALID,
&manager->polkit_registry, error);
if (r < 0)
return r;
if (r == 0)
return 1; /* Polkit will call us back */
r = netdev_load(manager, true);
if (r < 0)
return r;
r = network_reload(manager);
if (r < 0)
return r;
HASHMAP_FOREACH(link, manager->links) {
r = link_reconfigure(link, false);
if (r < 0)
return r;
}
return sd_bus_reply_method_return(message, NULL);
}
const sd_bus_vtable manager_vtable[] = {
SD_BUS_VTABLE_START(0),
SD_BUS_PROPERTY("OperationalState", "s", property_get_operational_state, offsetof(Manager, operational_state), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
SD_BUS_PROPERTY("CarrierState", "s", property_get_carrier_state, offsetof(Manager, carrier_state), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
SD_BUS_PROPERTY("AddressState", "s", property_get_address_state, offsetof(Manager, address_state), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
SD_BUS_METHOD("ListLinks", NULL, "a(iso)", method_list_links, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_METHOD("GetLinkByName", "s", "io", method_get_link_by_name, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_METHOD("GetLinkByIndex", "i", "so", method_get_link_by_index, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_METHOD("SetLinkNTP", "ias", NULL, bus_method_set_link_ntp_servers, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_METHOD("SetLinkDNS", "ia(iay)", NULL, bus_method_set_link_dns_servers, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_METHOD("SetLinkDNSEx", "ia(iayqs)", NULL, bus_method_set_link_dns_servers_ex, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_METHOD("SetLinkDomains", "ia(sb)", NULL, bus_method_set_link_domains, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_METHOD("SetLinkDefaultRoute", "ib", NULL, bus_method_set_link_default_route, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_METHOD("SetLinkLLMNR", "is", NULL, bus_method_set_link_llmnr, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_METHOD("SetLinkMulticastDNS", "is", NULL, bus_method_set_link_mdns, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_METHOD("SetLinkDNSOverTLS", "is", NULL, bus_method_set_link_dns_over_tls, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_METHOD("SetLinkDNSSEC", "is", NULL, bus_method_set_link_dnssec, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_METHOD("SetLinkDNSSECNegativeTrustAnchors", "ias", NULL, bus_method_set_link_dnssec_negative_trust_anchors, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_METHOD("RevertLinkNTP", "i", NULL, bus_method_revert_link_ntp, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_METHOD("RevertLinkDNS", "i", NULL, bus_method_revert_link_dns, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_METHOD("RenewLink", "i", NULL, bus_method_renew_link, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_METHOD("ForceRenewLink", "i", NULL, bus_method_force_renew_link, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_METHOD("ReconfigureLink", "i", NULL, bus_method_reconfigure_link, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_METHOD("Reload", NULL, NULL, bus_method_reload, SD_BUS_VTABLE_UNPRIVILEGED),
SD_BUS_VTABLE_END
};
int manager_send_changed_strv(Manager *manager, char **properties) {
assert(manager);
assert(properties);
if (!manager->bus)
return 0;
return sd_bus_emit_properties_changed_strv(
manager->bus,
"/org/freedesktop/network1",
"org.freedesktop.network1.Manager",
properties);
}
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