diff options
Diffstat (limited to 'src/network/networkd-link-bus.c')
| -rw-r--r-- | src/network/networkd-link-bus.c | 898 |
1 files changed, 898 insertions, 0 deletions
diff --git a/src/network/networkd-link-bus.c b/src/network/networkd-link-bus.c new file mode 100644 index 0000000..58d4875 --- /dev/null +++ b/src/network/networkd-link-bus.c @@ -0,0 +1,898 @@ +/* SPDX-License-Identifier: LGPL-2.1-or-later */ + +#include <net/if.h> +#include <netinet/in.h> +#include <sys/capability.h> + +#include "alloc-util.h" +#include "bus-common-errors.h" +#include "bus-get-properties.h" +#include "bus-message-util.h" +#include "bus-polkit.h" +#include "dns-domain.h" +#include "networkd-dhcp4.h" +#include "networkd-json.h" +#include "networkd-link-bus.h" +#include "networkd-link.h" +#include "networkd-manager.h" +#include "networkd-state-file.h" +#include "parse-util.h" +#include "resolve-util.h" +#include "socket-netlink.h" +#include "strv.h" +#include "user-util.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); +BUS_DEFINE_PROPERTY_GET_ENUM(property_get_online_state, link_online_state, LinkOnlineState); +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 = ASSERT_PTR(userdata); + Manager *manager; + double interval_sec; + uint64_t tx, rx; + + assert(bus); + assert(reply); + + manager = link->manager; + + if (!manager->use_speed_meter || + manager->speed_meter_usec_old == 0 || + !link->stats_updated) + return sd_bus_message_append(reply, "(tt)", UINT64_MAX, UINT64_MAX); + + 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); +} + +static int verify_managed_link(Link *l, sd_bus_error *error) { + assert(l); + + if (l->flags & IFF_LOOPBACK) + return sd_bus_error_setf(error, BUS_ERROR_LINK_BUSY, "Link %s is loopback device.", l->ifname); + + return 0; +} + +int bus_link_method_set_ntp_servers(sd_bus_message *message, void *userdata, sd_bus_error *error) { + _cleanup_strv_free_ char **ntp = NULL; + Link *l = ASSERT_PTR(userdata); + int r; + + assert(message); + + r = verify_managed_link(l, error); + if (r < 0) + return r; + + r = sd_bus_message_read_strv(message, &ntp); + if (r < 0) + return r; + + STRV_FOREACH(i, ntp) { + r = dns_name_is_valid_or_address(*i); + if (r < 0) + return r; + if (r == 0) + return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid NTP server: %s", *i); + } + + r = bus_verify_polkit_async(message, CAP_NET_ADMIN, + "org.freedesktop.network1.set-ntp-servers", + NULL, true, UID_INVALID, + &l->manager->polkit_registry, error); + if (r < 0) + return r; + if (r == 0) + return 1; /* Polkit will call us back */ + + strv_free_and_replace(l->ntp, ntp); + + r = link_save_and_clean_full(l, /* also_save_manager = */ true); + if (r < 0) + return r; + + return sd_bus_reply_method_return(message, NULL); +} + +static int bus_link_method_set_dns_servers_internal(sd_bus_message *message, void *userdata, sd_bus_error *error, bool extended) { + struct in_addr_full **dns; + Link *l = ASSERT_PTR(userdata); + size_t n; + int r; + + assert(message); + + r = verify_managed_link(l, error); + if (r < 0) + return r; + + r = bus_message_read_dns_servers(message, error, extended, &dns, &n); + if (r < 0) + return r; + + r = bus_verify_polkit_async(message, CAP_NET_ADMIN, + "org.freedesktop.network1.set-dns-servers", + NULL, true, UID_INVALID, + &l->manager->polkit_registry, error); + if (r < 0) + goto finalize; + if (r == 0) { + r = 1; /* Polkit will call us back */ + goto finalize; + } + + if (l->n_dns != UINT_MAX) + for (unsigned i = 0; i < l->n_dns; i++) + in_addr_full_free(l->dns[i]); + + free_and_replace(l->dns, dns); + l->n_dns = n; + + r = link_save_and_clean_full(l, /* also_save_manager = */ true); + if (r < 0) + return r; + + return sd_bus_reply_method_return(message, NULL); + +finalize: + for (size_t i = 0; i < n; i++) + in_addr_full_free(dns[i]); + free(dns); + + return r; +} + +int bus_link_method_set_dns_servers(sd_bus_message *message, void *userdata, sd_bus_error *error) { + return bus_link_method_set_dns_servers_internal(message, userdata, error, false); +} + +int bus_link_method_set_dns_servers_ex(sd_bus_message *message, void *userdata, sd_bus_error *error) { + return bus_link_method_set_dns_servers_internal(message, userdata, error, true); +} + +int bus_link_method_set_domains(sd_bus_message *message, void *userdata, sd_bus_error *error) { + _cleanup_ordered_set_free_ OrderedSet *search_domains = NULL, *route_domains = NULL; + Link *l = ASSERT_PTR(userdata); + int r; + + assert(message); + + r = verify_managed_link(l, error); + if (r < 0) + return r; + + r = sd_bus_message_enter_container(message, 'a', "(sb)"); + if (r < 0) + return r; + + search_domains = ordered_set_new(&string_hash_ops_free); + if (!search_domains) + return -ENOMEM; + + route_domains = ordered_set_new(&string_hash_ops_free); + if (!route_domains) + return -ENOMEM; + + for (;;) { + _cleanup_free_ char *str = NULL; + const char *name; + int route_only; + + r = sd_bus_message_read(message, "(sb)", &name, &route_only); + if (r < 0) + return r; + if (r == 0) + break; + + r = dns_name_is_valid(name); + if (r < 0) + return r; + if (r == 0) + return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid search domain %s", name); + if (!route_only && dns_name_is_root(name)) + return sd_bus_error_set(error, SD_BUS_ERROR_INVALID_ARGS, "Root domain is not suitable as search domain"); + + r = dns_name_normalize(name, 0, &str); + if (r < 0) + return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid search domain %s", name); + + r = ordered_set_consume(route_only ? route_domains : search_domains, TAKE_PTR(str)); + if (r == -EEXIST) + continue; + if (r < 0) + return r; + } + + r = sd_bus_message_exit_container(message); + if (r < 0) + return r; + + r = bus_verify_polkit_async(message, CAP_NET_ADMIN, + "org.freedesktop.network1.set-domains", + NULL, true, UID_INVALID, + &l->manager->polkit_registry, error); + if (r < 0) + return r; + if (r == 0) + return 1; /* Polkit will call us back */ + + ordered_set_free(l->search_domains); + ordered_set_free(l->route_domains); + l->search_domains = TAKE_PTR(search_domains); + l->route_domains = TAKE_PTR(route_domains); + + r = link_save_and_clean_full(l, /* also_save_manager = */ true); + if (r < 0) + return r; + + return sd_bus_reply_method_return(message, NULL); +} + +int bus_link_method_set_default_route(sd_bus_message *message, void *userdata, sd_bus_error *error) { + Link *l = ASSERT_PTR(userdata); + int r, b; + + assert(message); + + r = verify_managed_link(l, error); + if (r < 0) + return r; + + r = sd_bus_message_read(message, "b", &b); + if (r < 0) + return r; + + r = bus_verify_polkit_async(message, CAP_NET_ADMIN, + "org.freedesktop.network1.set-default-route", + NULL, true, UID_INVALID, + &l->manager->polkit_registry, error); + if (r < 0) + return r; + if (r == 0) + return 1; /* Polkit will call us back */ + + if (l->dns_default_route != b) { + l->dns_default_route = b; + + r = link_save_and_clean_full(l, /* also_save_manager = */ true); + if (r < 0) + return r; + } + + return sd_bus_reply_method_return(message, NULL); +} + +int bus_link_method_set_llmnr(sd_bus_message *message, void *userdata, sd_bus_error *error) { + Link *l = ASSERT_PTR(userdata); + ResolveSupport mode; + const char *llmnr; + int r; + + assert(message); + + r = verify_managed_link(l, error); + if (r < 0) + return r; + + r = sd_bus_message_read(message, "s", &llmnr); + if (r < 0) + return r; + + if (isempty(llmnr)) + mode = RESOLVE_SUPPORT_YES; + else { + mode = resolve_support_from_string(llmnr); + if (mode < 0) + return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid LLMNR setting: %s", llmnr); + } + + r = bus_verify_polkit_async(message, CAP_NET_ADMIN, + "org.freedesktop.network1.set-llmnr", + NULL, true, UID_INVALID, + &l->manager->polkit_registry, error); + if (r < 0) + return r; + if (r == 0) + return 1; /* Polkit will call us back */ + + if (l->llmnr != mode) { + l->llmnr = mode; + + r = link_save_and_clean_full(l, /* also_save_manager = */ true); + if (r < 0) + return r; + } + + return sd_bus_reply_method_return(message, NULL); +} + +int bus_link_method_set_mdns(sd_bus_message *message, void *userdata, sd_bus_error *error) { + Link *l = ASSERT_PTR(userdata); + ResolveSupport mode; + const char *mdns; + int r; + + assert(message); + + r = verify_managed_link(l, error); + if (r < 0) + return r; + + r = sd_bus_message_read(message, "s", &mdns); + if (r < 0) + return r; + + if (isempty(mdns)) + mode = RESOLVE_SUPPORT_NO; + else { + mode = resolve_support_from_string(mdns); + if (mode < 0) + return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid MulticastDNS setting: %s", mdns); + } + + r = bus_verify_polkit_async(message, CAP_NET_ADMIN, + "org.freedesktop.network1.set-mdns", + NULL, true, UID_INVALID, + &l->manager->polkit_registry, error); + if (r < 0) + return r; + if (r == 0) + return 1; /* Polkit will call us back */ + + if (l->mdns != mode) { + l->mdns = mode; + + r = link_save_and_clean_full(l, /* also_save_manager = */ true); + if (r < 0) + return r; + } + + return sd_bus_reply_method_return(message, NULL); +} + +int bus_link_method_set_dns_over_tls(sd_bus_message *message, void *userdata, sd_bus_error *error) { + Link *l = ASSERT_PTR(userdata); + const char *dns_over_tls; + DnsOverTlsMode mode; + int r; + + assert(message); + + r = verify_managed_link(l, error); + if (r < 0) + return r; + + r = sd_bus_message_read(message, "s", &dns_over_tls); + if (r < 0) + return r; + + if (isempty(dns_over_tls)) + mode = _DNS_OVER_TLS_MODE_INVALID; + else { + mode = dns_over_tls_mode_from_string(dns_over_tls); + if (mode < 0) + return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid DNSOverTLS setting: %s", dns_over_tls); + } + + r = bus_verify_polkit_async(message, CAP_NET_ADMIN, + "org.freedesktop.network1.set-dns-over-tls", + NULL, true, UID_INVALID, + &l->manager->polkit_registry, error); + if (r < 0) + return r; + if (r == 0) + return 1; /* Polkit will call us back */ + + if (l->dns_over_tls_mode != mode) { + l->dns_over_tls_mode = mode; + + r = link_save_and_clean_full(l, /* also_save_manager = */ true); + if (r < 0) + return r; + } + + return sd_bus_reply_method_return(message, NULL); +} + +int bus_link_method_set_dnssec(sd_bus_message *message, void *userdata, sd_bus_error *error) { + Link *l = ASSERT_PTR(userdata); + const char *dnssec; + DnssecMode mode; + int r; + + assert(message); + + r = verify_managed_link(l, error); + if (r < 0) + return r; + + r = sd_bus_message_read(message, "s", &dnssec); + if (r < 0) + return r; + + if (isempty(dnssec)) + mode = _DNSSEC_MODE_INVALID; + else { + mode = dnssec_mode_from_string(dnssec); + if (mode < 0) + return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid DNSSEC setting: %s", dnssec); + } + + r = bus_verify_polkit_async(message, CAP_NET_ADMIN, + "org.freedesktop.network1.set-dnssec", + NULL, true, UID_INVALID, + &l->manager->polkit_registry, error); + if (r < 0) + return r; + if (r == 0) + return 1; /* Polkit will call us back */ + + if (l->dnssec_mode != mode) { + l->dnssec_mode = mode; + + r = link_save_and_clean_full(l, /* also_save_manager = */ true); + if (r < 0) + return r; + } + + return sd_bus_reply_method_return(message, NULL); +} + +int bus_link_method_set_dnssec_negative_trust_anchors(sd_bus_message *message, void *userdata, sd_bus_error *error) { + _cleanup_set_free_free_ Set *ns = NULL; + _cleanup_strv_free_ char **ntas = NULL; + Link *l = ASSERT_PTR(userdata); + int r; + + assert(message); + + r = verify_managed_link(l, error); + if (r < 0) + return r; + + r = sd_bus_message_read_strv(message, &ntas); + if (r < 0) + return r; + + STRV_FOREACH(i, ntas) { + r = dns_name_is_valid(*i); + if (r < 0) + return r; + if (r == 0) + return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid negative trust anchor domain: %s", *i); + } + + ns = set_new(&dns_name_hash_ops); + if (!ns) + return -ENOMEM; + + STRV_FOREACH(i, ntas) { + r = set_put_strdup(&ns, *i); + if (r < 0) + return r; + } + + r = bus_verify_polkit_async(message, CAP_NET_ADMIN, + "org.freedesktop.network1.set-dnssec-negative-trust-anchors", + NULL, true, UID_INVALID, + &l->manager->polkit_registry, error); + if (r < 0) + return r; + if (r == 0) + return 1; /* Polkit will call us back */ + + set_free_free(l->dnssec_negative_trust_anchors); + l->dnssec_negative_trust_anchors = TAKE_PTR(ns); + + r = link_save_and_clean_full(l, /* also_save_manager = */ true); + if (r < 0) + return r; + + return sd_bus_reply_method_return(message, NULL); +} + +int bus_link_method_revert_ntp(sd_bus_message *message, void *userdata, sd_bus_error *error) { + Link *l = ASSERT_PTR(userdata); + int r; + + assert(message); + + r = verify_managed_link(l, error); + if (r < 0) + return r; + + r = bus_verify_polkit_async(message, CAP_NET_ADMIN, + "org.freedesktop.network1.revert-ntp", + NULL, true, UID_INVALID, + &l->manager->polkit_registry, error); + if (r < 0) + return r; + if (r == 0) + return 1; /* Polkit will call us back */ + + link_ntp_settings_clear(l); + + r = link_save_and_clean_full(l, /* also_save_manager = */ true); + if (r < 0) + return r; + + return sd_bus_reply_method_return(message, NULL); +} + +int bus_link_method_revert_dns(sd_bus_message *message, void *userdata, sd_bus_error *error) { + Link *l = ASSERT_PTR(userdata); + int r; + + assert(message); + + r = verify_managed_link(l, error); + if (r < 0) + return r; + + r = bus_verify_polkit_async(message, CAP_NET_ADMIN, + "org.freedesktop.network1.revert-dns", + NULL, true, UID_INVALID, + &l->manager->polkit_registry, error); + if (r < 0) + return r; + if (r == 0) + return 1; /* Polkit will call us back */ + + link_dns_settings_clear(l); + + r = link_save_and_clean_full(l, /* also_save_manager = */ true); + if (r < 0) + return r; + + return sd_bus_reply_method_return(message, NULL); +} + +int bus_link_method_force_renew(sd_bus_message *message, void *userdata, sd_bus_error *error) { + Link *l = ASSERT_PTR(userdata); + int r; + + if (!l->network) + return sd_bus_error_setf(error, BUS_ERROR_UNMANAGED_INTERFACE, + "Interface %s is not managed by systemd-networkd", + l->ifname); + + r = bus_verify_polkit_async(message, CAP_NET_ADMIN, + "org.freedesktop.network1.forcerenew", + NULL, true, UID_INVALID, + &l->manager->polkit_registry, error); + if (r < 0) + return r; + if (r == 0) + return 1; /* Polkit will call us back */ + + if (sd_dhcp_server_is_running(l->dhcp_server)) { + r = sd_dhcp_server_forcerenew(l->dhcp_server); + if (r < 0) + return r; + } + + return sd_bus_reply_method_return(message, NULL); +} + +int bus_link_method_renew(sd_bus_message *message, void *userdata, sd_bus_error *error) { + Link *l = ASSERT_PTR(userdata); + int r; + + if (!l->network) + return sd_bus_error_setf(error, BUS_ERROR_UNMANAGED_INTERFACE, + "Interface %s is not managed by systemd-networkd", + l->ifname); + + r = bus_verify_polkit_async(message, CAP_NET_ADMIN, + "org.freedesktop.network1.renew", + NULL, true, UID_INVALID, + &l->manager->polkit_registry, error); + if (r < 0) + return r; + if (r == 0) + return 1; /* Polkit will call us back */ + + r = dhcp4_renew(l); + if (r < 0) + return r; + + return sd_bus_reply_method_return(message, NULL); +} + +int bus_link_method_reconfigure(sd_bus_message *message, void *userdata, sd_bus_error *error) { + Link *l = ASSERT_PTR(userdata); + int r; + + assert(message); + + r = bus_verify_polkit_async(message, CAP_NET_ADMIN, + "org.freedesktop.network1.reconfigure", + NULL, true, UID_INVALID, + &l->manager->polkit_registry, error); + if (r < 0) + return r; + if (r == 0) + return 1; /* Polkit will call us back */ + + r = link_reconfigure(l, /* force = */ true); + if (r < 0) + return r; + if (r > 0) { + link_set_state(l, LINK_STATE_INITIALIZED); + r = link_save_and_clean_full(l, /* also_save_manager = */ true); + if (r < 0) + return r; + } + + return sd_bus_reply_method_return(message, NULL); +} + +int bus_link_method_describe(sd_bus_message *message, void *userdata, sd_bus_error *error) { + _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; + _cleanup_(json_variant_unrefp) JsonVariant *v = NULL; + _cleanup_free_ char *text = NULL; + Link *link = ASSERT_PTR(userdata); + int r; + + assert(message); + + r = link_build_json(link, &v); + if (r < 0) + return log_link_error_errno(link, r, "Failed to build JSON data: %m"); + + r = json_variant_format(v, 0, &text); + if (r < 0) + return log_link_error_errno(link, r, "Failed to format JSON data: %m"); + + r = sd_bus_message_new_method_return(message, &reply); + if (r < 0) + return r; + + r = sd_bus_message_append(reply, "s", text); + if (r < 0) + return r; + + return sd_bus_send(NULL, reply, NULL); +} + +static 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("IPv4AddressState", "s", property_get_address_state, offsetof(Link, ipv4_address_state), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), + SD_BUS_PROPERTY("IPv6AddressState", "s", property_get_address_state, offsetof(Link, ipv6_address_state), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), + SD_BUS_PROPERTY("OnlineState", "s", property_get_online_state, offsetof(Link, online_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_METHOD_WITH_ARGS("SetNTP", + SD_BUS_ARGS("as", servers), + SD_BUS_NO_RESULT, + bus_link_method_set_ntp_servers, + SD_BUS_VTABLE_UNPRIVILEGED), + SD_BUS_METHOD_WITH_ARGS("SetDNS", + SD_BUS_ARGS("a(iay)", addresses), + SD_BUS_NO_RESULT, + bus_link_method_set_dns_servers, + SD_BUS_VTABLE_UNPRIVILEGED), + SD_BUS_METHOD_WITH_ARGS("SetDNSEx", + SD_BUS_ARGS("a(iayqs)", addresses), + SD_BUS_NO_RESULT, + bus_link_method_set_dns_servers_ex, + SD_BUS_VTABLE_UNPRIVILEGED), + SD_BUS_METHOD_WITH_ARGS("SetDomains", + SD_BUS_ARGS("a(sb)", domains), + SD_BUS_NO_RESULT, + bus_link_method_set_domains, + SD_BUS_VTABLE_UNPRIVILEGED), + SD_BUS_METHOD_WITH_ARGS("SetDefaultRoute", + SD_BUS_ARGS("b", enable), + SD_BUS_NO_RESULT, + bus_link_method_set_default_route, + SD_BUS_VTABLE_UNPRIVILEGED), + SD_BUS_METHOD_WITH_ARGS("SetLLMNR", + SD_BUS_ARGS("s", mode), + SD_BUS_NO_RESULT, + bus_link_method_set_llmnr, + SD_BUS_VTABLE_UNPRIVILEGED), + SD_BUS_METHOD_WITH_ARGS("SetMulticastDNS", + SD_BUS_ARGS("s", mode), + SD_BUS_NO_RESULT, + bus_link_method_set_mdns, + SD_BUS_VTABLE_UNPRIVILEGED), + SD_BUS_METHOD_WITH_ARGS("SetDNSOverTLS", + SD_BUS_ARGS("s", mode), + SD_BUS_NO_RESULT, + bus_link_method_set_dns_over_tls, + SD_BUS_VTABLE_UNPRIVILEGED), + SD_BUS_METHOD_WITH_ARGS("SetDNSSEC", + SD_BUS_ARGS("s", mode), + SD_BUS_NO_RESULT, + bus_link_method_set_dnssec, + SD_BUS_VTABLE_UNPRIVILEGED), + SD_BUS_METHOD_WITH_ARGS("SetDNSSECNegativeTrustAnchors", + SD_BUS_ARGS("as", names), + SD_BUS_NO_RESULT, + bus_link_method_set_dnssec_negative_trust_anchors, + SD_BUS_VTABLE_UNPRIVILEGED), + SD_BUS_METHOD_WITH_ARGS("RevertNTP", + SD_BUS_NO_ARGS, + SD_BUS_NO_RESULT, + bus_link_method_revert_ntp, + SD_BUS_VTABLE_UNPRIVILEGED), + SD_BUS_METHOD_WITH_ARGS("RevertDNS", + SD_BUS_NO_ARGS, + SD_BUS_NO_RESULT, + bus_link_method_revert_dns, + SD_BUS_VTABLE_UNPRIVILEGED), + SD_BUS_METHOD_WITH_ARGS("Renew", + SD_BUS_NO_ARGS, + SD_BUS_NO_RESULT, + bus_link_method_renew, + SD_BUS_VTABLE_UNPRIVILEGED), + SD_BUS_METHOD_WITH_ARGS("ForceRenew", + SD_BUS_NO_ARGS, + SD_BUS_NO_RESULT, + bus_link_method_force_renew, + SD_BUS_VTABLE_UNPRIVILEGED), + SD_BUS_METHOD_WITH_ARGS("Reconfigure", + SD_BUS_NO_ARGS, + SD_BUS_NO_RESULT, + bus_link_method_reconfigure, + SD_BUS_VTABLE_UNPRIVILEGED), + SD_BUS_METHOD_WITH_ARGS("Describe", + SD_BUS_NO_ARGS, + SD_BUS_RESULT("s", json), + bus_link_method_describe, + SD_BUS_VTABLE_UNPRIVILEGED), + + 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 = ASSERT_PTR(userdata); + unsigned c = 0; + Link *link; + + assert(bus); + assert(path); + assert(nodes); + + l = new0(char*, hashmap_size(m->links_by_index) + 1); + if (!l) + return -ENOMEM; + + HASHMAP_FOREACH(link, m->links_by_index) { + 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 = ASSERT_PTR(userdata); + Link *link; + int ifindex, r; + + assert(bus); + assert(path); + assert(interface); + assert(found); + + r = sd_bus_path_decode(path, "/org/freedesktop/network1/link", &identifier); + if (r <= 0) + return 0; + + ifindex = parse_ifindex(identifier); + if (ifindex < 0) + return 0; + + r = link_get_by_index(m, ifindex, &link); + if (r < 0) + return 0; + + if (streq(interface, "org.freedesktop.network1.DHCPServer") && + (!link->dhcp_server || sd_dhcp_server_is_in_relay_mode(link->dhcp_server))) + return 0; + + if (streq(interface, "org.freedesktop.network1.DHCPv4Client") && !link->dhcp_client) + return 0; + + if (streq(interface, "org.freedesktop.network1.DHCPv6Client") && !link->dhcp6_client) + 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 (sd_bus_is_ready(link->manager->bus) <= 0) + 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); +} + +const BusObjectImplementation link_object = { + "/org/freedesktop/network1/link", + "org.freedesktop.network1.Link", + .fallback_vtables = BUS_FALLBACK_VTABLES({link_vtable, link_object_find}), + .node_enumerator = link_node_enumerator, +}; |