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/* SPDX-License-Identifier: LGPL-2.1+ */
#include "alloc-util.h"
#include "bus-common-errors.h"
#include "bus-util.h"
#include "networkd-link-bus.h"
#include "networkd-link.h"
#include "networkd-manager.h"
#include "parse-util.h"
#include "strv.h"
BUS_DEFINE_PROPERTY_GET_ENUM(property_get_operational_state, link_operstate, LinkOperationalState);
BUS_DEFINE_PROPERTY_GET_ENUM(property_get_carrier_state, link_carrier_state, LinkCarrierState);
BUS_DEFINE_PROPERTY_GET_ENUM(property_get_address_state, link_address_state, LinkAddressState);
static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_administrative_state, link_state, LinkState);
static int property_get_bit_rates(
sd_bus *bus,
const char *path,
const char *interface,
const char *property,
sd_bus_message *reply,
void *userdata,
sd_bus_error *error) {
Link *link = userdata;
Manager *manager;
double interval_sec;
uint64_t tx, rx;
assert(bus);
assert(reply);
assert(userdata);
manager = link->manager;
if (!manager->use_speed_meter)
return sd_bus_error_set(error, BUS_ERROR_SPEED_METER_INACTIVE, "Speed meter is disabled.");
if (manager->speed_meter_usec_old == 0)
return sd_bus_error_set(error, BUS_ERROR_SPEED_METER_INACTIVE, "Speed meter is not active.");
if (!link->stats_updated)
return sd_bus_error_set(error, BUS_ERROR_SPEED_METER_INACTIVE, "Failed to measure bit-rates.");
assert(manager->speed_meter_usec_new > manager->speed_meter_usec_old);
interval_sec = (manager->speed_meter_usec_new - manager->speed_meter_usec_old) / USEC_PER_SEC;
if (link->stats_new.tx_bytes > link->stats_old.tx_bytes)
tx = (uint64_t) ((link->stats_new.tx_bytes - link->stats_old.tx_bytes) / interval_sec);
else
tx = (uint64_t) ((UINT64_MAX - (link->stats_old.tx_bytes - link->stats_new.tx_bytes)) / interval_sec);
if (link->stats_new.rx_bytes > link->stats_old.rx_bytes)
rx = (uint64_t) ((link->stats_new.rx_bytes - link->stats_old.rx_bytes) / interval_sec);
else
rx = (uint64_t) ((UINT64_MAX - (link->stats_old.rx_bytes - link->stats_new.rx_bytes)) / interval_sec);
return sd_bus_message_append(reply, "(tt)", tx, rx);
}
const sd_bus_vtable link_vtable[] = {
SD_BUS_VTABLE_START(0),
SD_BUS_PROPERTY("OperationalState", "s", property_get_operational_state, offsetof(Link, operstate), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
SD_BUS_PROPERTY("CarrierState", "s", property_get_carrier_state, offsetof(Link, carrier_state), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
SD_BUS_PROPERTY("AddressState", "s", property_get_address_state, offsetof(Link, address_state), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
SD_BUS_PROPERTY("AdministrativeState", "s", property_get_administrative_state, offsetof(Link, state), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
SD_BUS_PROPERTY("BitRates", "(tt)", property_get_bit_rates, 0, 0),
SD_BUS_VTABLE_END
};
char *link_bus_path(Link *link) {
_cleanup_free_ char *ifindex = NULL;
char *p;
int r;
assert(link);
assert(link->ifindex > 0);
if (asprintf(&ifindex, "%d", link->ifindex) < 0)
return NULL;
r = sd_bus_path_encode("/org/freedesktop/network1/link", ifindex, &p);
if (r < 0)
return NULL;
return p;
}
int link_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) {
_cleanup_strv_free_ char **l = NULL;
Manager *m = userdata;
unsigned c = 0;
Link *link;
Iterator i;
assert(bus);
assert(path);
assert(m);
assert(nodes);
l = new0(char*, hashmap_size(m->links) + 1);
if (!l)
return -ENOMEM;
HASHMAP_FOREACH(link, m->links, i) {
char *p;
p = link_bus_path(link);
if (!p)
return -ENOMEM;
l[c++] = p;
}
l[c] = NULL;
*nodes = TAKE_PTR(l);
return 1;
}
int link_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) {
_cleanup_free_ char *identifier = NULL;
Manager *m = userdata;
Link *link;
int ifindex, r;
assert(bus);
assert(path);
assert(interface);
assert(m);
assert(found);
r = sd_bus_path_decode(path, "/org/freedesktop/network1/link", &identifier);
if (r <= 0)
return 0;
r = parse_ifindex(identifier, &ifindex);
if (r < 0)
return 0;
r = link_get(m, ifindex, &link);
if (r < 0)
return 0;
*found = link;
return 1;
}
int link_send_changed_strv(Link *link, char **properties) {
_cleanup_free_ char *p = NULL;
assert(link);
assert(link->manager);
assert(properties);
if (!link->manager->bus)
return 0;
p = link_bus_path(link);
if (!p)
return -ENOMEM;
return sd_bus_emit_properties_changed_strv(
link->manager->bus,
p,
"org.freedesktop.network1.Link",
properties);
}
int link_send_changed(Link *link, const char *property, ...) {
char **properties;
properties = strv_from_stdarg_alloca(property);
return link_send_changed_strv(link, properties);
}
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