| /* 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-message-util.h" |
| #include "bus-polkit.h" |
| #include "networkd-json.h" |
| #include "networkd-link-bus.h" |
| #include "networkd-link.h" |
| #include "networkd-manager-bus.h" |
| #include "networkd-manager.h" |
| #include "path-util.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_by_index) { |
| _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; |
| Link *link; |
| int r; |
| |
| r = sd_bus_message_read(message, "s", &name); |
| if (r < 0) |
| return r; |
| |
| if (link_get_by_name(manager, name, &link) < 0) |
| 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; |
| |
| r = link_get_by_index(manager, ifindex, &link); |
| if (r < 0) |
| 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; |
| |
| r = link_get_by_index(m, ifindex, &l); |
| if (r < 0) |
| 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_by_index) { |
| r = link_reconfigure(link, /* force = */ false); |
| if (r < 0) |
| return r; |
| } |
| |
| return sd_bus_reply_method_return(message, NULL); |
| } |
| |
| static int bus_method_describe_link(sd_bus_message *message, void *userdata, sd_bus_error *error) { |
| return call_link_method(userdata, message, bus_link_method_describe, error); |
| } |
| |
| static int bus_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; |
| Manager *manager = userdata; |
| int r; |
| |
| assert(message); |
| assert(manager); |
| |
| r = manager_build_json(manager, &v); |
| if (r < 0) |
| return log_error_errno(r, "Failed to build JSON data: %m"); |
| |
| r = json_variant_format(v, 0, &text); |
| if (r < 0) |
| return log_error_errno(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 int property_get_namespace_id( |
| sd_bus *bus, |
| const char *path, |
| const char *interface, |
| const char *property, |
| sd_bus_message *reply, |
| void *userdata, |
| sd_bus_error *error) { |
| |
| uint64_t id = 0; |
| struct stat st; |
| |
| assert(bus); |
| assert(reply); |
| |
| /* Returns our own network namespace ID, i.e. the inode number of /proc/self/ns/net. This allows |
| * unprivileged clients to determine whether they are in the same network namespace as us (note that |
| * access to that path is restricted, thus they can't check directly unless privileged). */ |
| |
| if (stat("/proc/self/ns/net", &st) < 0) { |
| log_warning_errno(errno, "Failed to stat network namespace, ignoring: %m"); |
| id = 0; |
| } else |
| id = st.st_ino; |
| |
| return sd_bus_message_append(reply, "t", id); |
| } |
| |
| 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_PROPERTY("IPv4AddressState", "s", property_get_address_state, offsetof(Manager, ipv4_address_state), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
| SD_BUS_PROPERTY("IPv6AddressState", "s", property_get_address_state, offsetof(Manager, ipv6_address_state), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
| SD_BUS_PROPERTY("OnlineState", "s", property_get_online_state, offsetof(Manager, online_state), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE), |
| SD_BUS_PROPERTY("NamespaceId", "t", property_get_namespace_id, 0, SD_BUS_VTABLE_PROPERTY_CONST), |
| |
| SD_BUS_METHOD_WITH_ARGS("ListLinks", |
| SD_BUS_NO_ARGS, |
| SD_BUS_RESULT("a(iso)", links), |
| method_list_links, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("GetLinkByName", |
| SD_BUS_ARGS("s", name), |
| SD_BUS_RESULT("i", ifindex, "o", path), |
| method_get_link_by_name, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("GetLinkByIndex", |
| SD_BUS_ARGS("i", ifindex), |
| SD_BUS_RESULT("s", name, "o", path), |
| method_get_link_by_index, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("SetLinkNTP", |
| SD_BUS_ARGS("i", ifindex, "as", servers), |
| SD_BUS_NO_RESULT, |
| bus_method_set_link_ntp_servers, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("SetLinkDNS", |
| SD_BUS_ARGS("i", ifindex, "a(iay)", addresses), |
| SD_BUS_NO_RESULT, |
| bus_method_set_link_dns_servers, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("SetLinkDNSEx", |
| SD_BUS_ARGS("i", ifindex, "a(iayqs)", addresses), |
| SD_BUS_NO_RESULT, |
| bus_method_set_link_dns_servers_ex, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("SetLinkDomains", |
| SD_BUS_ARGS("i", ifindex, "a(sb)", domains), |
| SD_BUS_NO_RESULT, |
| bus_method_set_link_domains, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("SetLinkDefaultRoute", |
| SD_BUS_ARGS("i", ifindex, "b", enable), |
| SD_BUS_NO_RESULT, |
| bus_method_set_link_default_route, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("SetLinkLLMNR", |
| SD_BUS_ARGS("i", ifindex, "s", mode), |
| SD_BUS_NO_RESULT, |
| bus_method_set_link_llmnr, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("SetLinkMulticastDNS", |
| SD_BUS_ARGS("i", ifindex, "s", mode), |
| SD_BUS_NO_RESULT, |
| bus_method_set_link_mdns, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("SetLinkDNSOverTLS", |
| SD_BUS_ARGS("i", ifindex, "s", mode), |
| SD_BUS_NO_RESULT, |
| bus_method_set_link_dns_over_tls, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("SetLinkDNSSEC", |
| SD_BUS_ARGS("i", ifindex, "s", mode), |
| SD_BUS_NO_RESULT, |
| bus_method_set_link_dnssec, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("SetLinkDNSSECNegativeTrustAnchors", |
| SD_BUS_ARGS("i", ifindex, "as", names), |
| SD_BUS_NO_RESULT, |
| bus_method_set_link_dnssec_negative_trust_anchors, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("RevertLinkNTP", |
| SD_BUS_ARGS("i", ifindex), |
| SD_BUS_NO_RESULT, |
| bus_method_revert_link_ntp, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("RevertLinkDNS", |
| SD_BUS_ARGS("i", ifindex), |
| SD_BUS_NO_RESULT, |
| bus_method_revert_link_dns, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("RenewLink", |
| SD_BUS_ARGS("i", ifindex), |
| SD_BUS_NO_RESULT, |
| bus_method_renew_link, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("ForceRenewLink", |
| SD_BUS_ARGS("i", ifindex), |
| SD_BUS_NO_RESULT, |
| bus_method_force_renew_link, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("ReconfigureLink", |
| SD_BUS_ARGS("i", ifindex), |
| SD_BUS_NO_RESULT, |
| bus_method_reconfigure_link, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("Reload", |
| SD_BUS_NO_ARGS, |
| SD_BUS_NO_RESULT, |
| bus_method_reload, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("DescribeLink", |
| SD_BUS_ARGS("i", ifindex), |
| SD_BUS_RESULT("s", json), |
| bus_method_describe_link, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| SD_BUS_METHOD_WITH_ARGS("Describe", |
| SD_BUS_NO_ARGS, |
| SD_BUS_RESULT("s", json), |
| bus_method_describe, |
| SD_BUS_VTABLE_UNPRIVILEGED), |
| |
| SD_BUS_VTABLE_END |
| }; |
| |
| int manager_send_changed_strv(Manager *manager, char **properties) { |
| assert(manager); |
| assert(properties); |
| |
| if (sd_bus_is_ready(manager->bus) <= 0) |
| return 0; |
| |
| return sd_bus_emit_properties_changed_strv( |
| manager->bus, |
| "/org/freedesktop/network1", |
| "org.freedesktop.network1.Manager", |
| properties); |
| } |
