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src/machine/machine-dbus.c
949 строк
36 KB
cidkidnix
machined: Allow user ids in open_shell for machine-dbus
16 июл 2026, 13:58
16 июл 2026, 13:58
93212e2
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/* SPDX-License-Identifier: LGPL-2.1-or-later */ #include "sd-bus.h" #include "alloc-util.h" #include "bus-common-errors.h" #include "bus-get-properties.h" #include "bus-label.h" #include "bus-object.h" #include "bus-polkit.h" #include "bus-util.h" #include "copy.h" #include "env-util.h" #include "errno-util.h" #include "fd-util.h" #include "hashmap.h" #include "in-addr-util.h" #include "local-addresses.h" #include "machine.h" #include "machine-dbus.h" #include "machined.h" #include "mount-util.h" #include "namespace-util.h" #include "operation.h" #include "path-util.h" #include "signal-util.h" #include "string-util.h" #include "strv.h" #include "user-util.h" static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_class, machine_class, MachineClass); static BUS_DEFINE_PROPERTY_GET2(property_get_state, "s", Machine, machine_get_state, machine_state_to_string); static int property_get_netif( sd_bus *bus, const char *path, const char *interface, const char *property, sd_bus_message *reply, void *userdata, sd_bus_error *error) { Machine *m = ASSERT_PTR(userdata); assert(bus); assert(reply); assert_cc(sizeof(int) == sizeof(int32_t)); return sd_bus_message_append_array(reply, 'i', m->netif, m->n_netif * sizeof(int)); } int bus_machine_method_unregister(sd_bus_message *message, void *userdata, sd_bus_error *error) { Machine *m = ASSERT_PTR(userdata); int r; assert(message); if (m->manager->runtime_scope != RUNTIME_SCOPE_USER) { const char *details[] = { "machine", m->name, "verb", "unregister", NULL }; r = bus_verify_polkit_async_full( message, "org.freedesktop.machine1.manage-machines", details, m->uid, /* flags= */ 0, &m->manager->polkit_registry, /* ret_admin= */ NULL, error); if (r < 0) return r; if (r == 0) return 1; /* Will call us back */ } r = machine_finalize(m); if (r < 0) return r; return sd_bus_reply_method_return(message, NULL); } int bus_machine_method_terminate(sd_bus_message *message, void *userdata, sd_bus_error *error) { Machine *m = ASSERT_PTR(userdata); int r; assert(message); if (m->manager->runtime_scope != RUNTIME_SCOPE_USER) { const char *details[] = { "machine", m->name, "verb", "terminate", NULL }; r = bus_verify_polkit_async_full( message, "org.freedesktop.machine1.manage-machines", details, m->uid, /* flags= */ 0, &m->manager->polkit_registry, /* ret_admin= */ NULL, error); if (r < 0) return r; if (r == 0) return 1; /* Will call us back */ } r = machine_stop(m); if (r < 0) return r; return sd_bus_reply_method_return(message, NULL); } int bus_machine_method_kill(sd_bus_message *message, void *userdata, sd_bus_error *error) { Machine *m = ASSERT_PTR(userdata); const char *swho; int32_t signo; KillWhom whom; int r; assert(message); r = sd_bus_message_read(message, "si", &swho, &signo); if (r < 0) return r; if (isempty(swho)) whom = KILL_ALL; else { whom = kill_whom_from_string(swho); if (whom < 0) return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid kill parameter '%s'", swho); } if (!SIGNAL_VALID(signo)) return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid signal %i", signo); if (m->manager->runtime_scope != RUNTIME_SCOPE_USER) { const char *details[] = { "machine", m->name, "verb", "kill", NULL }; r = bus_verify_polkit_async_full( message, "org.freedesktop.machine1.manage-machines", details, m->uid, /* flags= */ 0, &m->manager->polkit_registry, /* ret_admin= */ NULL, error); if (r < 0) return r; if (r == 0) return 1; /* Will call us back */ } r = machine_kill(m, whom, signo); if (r < 0) return r; return sd_bus_reply_method_return(message, NULL); } int bus_machine_method_get_addresses(sd_bus_message *message, void *userdata, sd_bus_error *error) { _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; _cleanup_free_ struct local_address *addresses = NULL; Machine *m = ASSERT_PTR(userdata); int r; assert(message); r = sd_bus_message_new_method_return(message, &reply); if (r < 0) return r; r = sd_bus_message_open_container(reply, 'a', "(iay)"); if (r < 0) return r; int n = machine_get_addresses(m, &addresses); if (n == -ENONET) return sd_bus_error_setf(error, BUS_ERROR_NO_PRIVATE_NETWORKING, "Machine %s does not use private networking", m->name); if (ERRNO_IS_NEG_NOT_SUPPORTED(n)) return sd_bus_error_set(error, SD_BUS_ERROR_NOT_SUPPORTED, "Requesting IP address data is only supported on container machines."); if (n < 0) return sd_bus_error_set_errnof(error, n, "Failed to get addresses: %m"); for (int i = 0; i < n; i++) { r = sd_bus_message_open_container(reply, 'r', "iay"); if (r < 0) return r; r = sd_bus_message_append(reply, "i", addresses[i].family); if (r < 0) return r; r = sd_bus_message_append_array(reply, 'y', &addresses[i].address, FAMILY_ADDRESS_SIZE(addresses[i].family)); if (r < 0) return r; r = sd_bus_message_close_container(reply); if (r < 0) return r; } r = sd_bus_message_close_container(reply); if (r < 0) return r; return sd_bus_message_send(reply); } int bus_machine_method_get_ssh_info(sd_bus_message *message, void *userdata, sd_bus_error *error) { _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; Machine *m = ASSERT_PTR(userdata); int r; assert(message); r = sd_bus_message_new_method_return(message, &reply); if (r < 0) return r; if (!m->ssh_address || !m->ssh_private_key_path) return -ENOENT; r = sd_bus_message_append(reply, "ss", m->ssh_address, m->ssh_private_key_path); if (r < 0) return r; return sd_bus_message_send(reply); } int bus_machine_method_get_os_release(sd_bus_message *message, void *userdata, sd_bus_error *error) { _cleanup_strv_free_ char **l = NULL; Machine *m = ASSERT_PTR(userdata); int r; assert(message); if (m->manager->runtime_scope != RUNTIME_SCOPE_USER) { const char *details[] = { "machine", m->name, "verb", "get_os_release", NULL }; r = bus_verify_polkit_async( message, "org.freedesktop.machine1.inspect-machines", details, &m->manager->polkit_registry, error); if (r < 0) return r; if (r == 0) return 1; /* Will call us back */ } r = machine_get_os_release(m, &l); if (r == -ENONET) return sd_bus_error_set(error, SD_BUS_ERROR_FAILED, "Machine does not contain OS release information."); if (ERRNO_IS_NEG_NOT_SUPPORTED(r)) return sd_bus_error_set(error, SD_BUS_ERROR_NOT_SUPPORTED, "Requesting OS release data is only supported on container machines."); if (r < 0) return sd_bus_error_set_errnof(error, r, "Failed to get OS release: %m"); return bus_reply_pair_array(message, l); } int bus_machine_method_open_pty(sd_bus_message *message, void *userdata, sd_bus_error *error) { _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; _cleanup_free_ char *pty_name = NULL; _cleanup_close_ int master = -EBADF; Machine *m = ASSERT_PTR(userdata); int r; assert(message); if (m->manager->runtime_scope != RUNTIME_SCOPE_USER) { const char *details[] = { "machine", m->name, NULL }; r = bus_verify_polkit_async_full( message, m->class == MACHINE_HOST ? "org.freedesktop.machine1.host-open-pty" : "org.freedesktop.machine1.open-pty", details, m->uid, /* flags= */ 0, &m->manager->polkit_registry, /* ret_admin= */ NULL, error); if (r < 0) return r; if (r == 0) return 1; /* Will call us back */ } master = machine_openpt(m, O_RDWR|O_NOCTTY|O_CLOEXEC, &pty_name); if (master < 0) return master; r = sd_bus_message_new_method_return(message, &reply); if (r < 0) return r; r = sd_bus_message_append(reply, "hs", master, pty_name); if (r < 0) return r; return sd_bus_message_send(reply); } int bus_machine_method_open_login(sd_bus_message *message, void *userdata, sd_bus_error *error) { _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; _cleanup_free_ char *pty_name = NULL; _cleanup_close_ int master = -EBADF; Machine *m = ASSERT_PTR(userdata); int r; assert(message); if (m->manager->runtime_scope != RUNTIME_SCOPE_USER) { const char *details[] = { "machine", m->name, "verb", "login", NULL }; r = bus_verify_polkit_async_full( message, m->class == MACHINE_HOST ? "org.freedesktop.machine1.host-login" : "org.freedesktop.machine1.login", details, m->uid, /* flags= */ 0, &m->manager->polkit_registry, /* ret_admin= */ NULL, error); if (r < 0) return r; if (r == 0) return 1; /* Will call us back */ } master = machine_openpt(m, O_RDWR|O_NOCTTY|O_CLOEXEC, &pty_name); if (master < 0) return master; r = machine_start_getty(m, pty_name, error); if (r < 0) return r; r = sd_bus_message_new_method_return(message, &reply); if (r < 0) return r; r = sd_bus_message_append(reply, "hs", master, pty_name); if (r < 0) return r; return sd_bus_message_send(reply); } int bus_machine_method_open_shell(sd_bus_message *message, void *userdata, sd_bus_error *error) { _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; _cleanup_free_ char *pty_name = NULL; _cleanup_close_ int master = -EBADF; _cleanup_strv_free_ char **env = NULL, **args_wire = NULL, **args = NULL; Machine *m = ASSERT_PTR(userdata); const char *user, *path; int r; assert(message); r = sd_bus_message_read(message, "ss", &user, &path); if (r < 0) return r; user = isempty(user) ? "root" : user; if (!valid_user_group_name(user, VALID_USER_RELAX | VALID_USER_ALLOW_NUMERIC)) return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid user name '%s'", user); /* Ensure only root can shell into the root namespace. This is to avoid unprivileged users registering * a process they own in the root user namespace, and then shelling in as root or another user. Note that * the shell operation is privileged and requires 'auth_admin', so we do not need to check the caller's uid, * as that will be checked by polkit, and if the machine's and the caller's do not match, authorization * will be required. It's only the case where the caller owns the machine that will be shortcut and needs * to be checked here. */ if (m->manager->runtime_scope != RUNTIME_SCOPE_USER && m->uid != 0) { assert(m->class != MACHINE_HOST); r = pidref_in_same_namespace(&PIDREF_MAKE_FROM_PID(1), &m->leader, NAMESPACE_USER); if (r < 0) return log_debug_errno( r, "Failed to check if machine '%s' is running in the root user namespace: %m", m->name); if (r > 0) return sd_bus_error_set( error, SD_BUS_ERROR_ACCESS_DENIED, "Only root may shell into the root user namespace"); } r = sd_bus_message_read_strv(message, &args_wire); if (r < 0) return r; if (isempty(path)) { path = machine_default_shell_path(); args = machine_default_shell_args(user); if (!args) return -ENOMEM; } else { if (!path_is_absolute(path)) return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Specified path '%s' is not absolute", path); args = TAKE_PTR(args_wire); if (strv_isempty(args)) { args = strv_free(args); args = strv_new(path); if (!args) return -ENOMEM; } } r = sd_bus_message_read_strv(message, &env); if (r < 0) return r; if (strv_length(env) > ENVIRONMENT_ASSIGNMENTS_MAX) return sd_bus_error_set(error, SD_BUS_ERROR_LIMITS_EXCEEDED, "Too many environment assignments in a single query."); if (!strv_env_is_valid(env)) return sd_bus_error_set(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid environment assignments"); if (m->manager->runtime_scope != RUNTIME_SCOPE_USER) { _cleanup_free_ char *command_line = strv_join(args, " "); if (!command_line) return -ENOMEM; const char *details[] = { "machine", m->name, "user", user, "program", path, "command_line", command_line, NULL }; r = bus_verify_polkit_async_full( message, m->class == MACHINE_HOST ? "org.freedesktop.machine1.host-shell" : "org.freedesktop.machine1.shell", details, m->uid, /* flags= */ 0, &m->manager->polkit_registry, /* ret_admin= */ NULL, error); if (r < 0) return r; if (r == 0) return 1; /* Will call us back */ } master = machine_openpt(m, O_RDWR|O_NOCTTY|O_CLOEXEC, &pty_name); if (master < 0) return master; r = machine_start_shell(m, master, pty_name, user, path, args, env, error); if (r < 0) return r; r = sd_bus_message_new_method_return(message, &reply); if (r < 0) return r; r = sd_bus_message_append(reply, "hs", master, pty_name); if (r < 0) return r; return sd_bus_message_send(reply); } int bus_machine_method_bind_mount(sd_bus_message *message, void *userdata, sd_bus_error *error) { int read_only, make_file_or_directory; const char *dest, *src, *propagate_directory; Machine *m = ASSERT_PTR(userdata); MountInNamespaceFlags flags = 0; uid_t uid; int r; assert(message); if (m->class != MACHINE_CONTAINER) return sd_bus_error_set(error, SD_BUS_ERROR_NOT_SUPPORTED, "Bind mounting is only supported on container machines."); r = sd_bus_message_read(message, "ssbb", &src, &dest, &read_only, &make_file_or_directory); if (r < 0) return r; if (!path_is_absolute(src) || !path_is_normalized(src)) return sd_bus_error_set(error, SD_BUS_ERROR_INVALID_ARGS, "Source path must be absolute and normalized."); if (isempty(dest)) dest = src; else if (!path_is_absolute(dest) || !path_is_normalized(dest)) return sd_bus_error_set(error, SD_BUS_ERROR_INVALID_ARGS, "Destination path must be absolute and normalized."); if (m->manager->runtime_scope != RUNTIME_SCOPE_USER) { const char *details[] = { "machine", m->name, "verb", "bind", "src", src, "dest", dest, NULL }; /* NB: For now not opened up to owner of machine without auth */ r = bus_verify_polkit_async( message, "org.freedesktop.machine1.manage-machines", details, &m->manager->polkit_registry, error); if (r < 0) return r; if (r == 0) return 1; /* Will call us back */ } r = machine_get_uid_shift(m, &uid); if (r < 0) return r; if (uid != 0) return sd_bus_error_set(error, SD_BUS_ERROR_NOT_SUPPORTED, "Can't bind mount on container with user namespacing applied."); if (read_only) flags |= MOUNT_IN_NAMESPACE_READ_ONLY; if (make_file_or_directory) flags |= MOUNT_IN_NAMESPACE_MAKE_FILE_OR_DIRECTORY; propagate_directory = strjoina("/run/systemd/nspawn/propagate/", m->name); r = bind_mount_in_namespace( &m->leader, propagate_directory, "/run/host/incoming/", src, dest, flags); if (r < 0) return sd_bus_error_set_errnof(error, r, "Failed to mount %s on %s in machine's namespace: %m", src, dest); return sd_bus_reply_method_return(message, NULL); } int bus_machine_method_copy(sd_bus_message *message, void *userdata, sd_bus_error *error) { const char *src, *dest, *host_path, *container_path; CopyFlags copy_flags = COPY_MERGE|COPY_HARDLINKS; Machine *m = ASSERT_PTR(userdata); Manager *manager = m->manager; bool copy_from; int r; assert(message); if (m->manager->n_operations >= OPERATIONS_MAX) return sd_bus_error_set(error, SD_BUS_ERROR_LIMITS_EXCEEDED, "Too many ongoing copies."); if (m->class != MACHINE_CONTAINER) return sd_bus_error_set(error, SD_BUS_ERROR_NOT_SUPPORTED, "Copying files is only supported on container machines."); r = sd_bus_message_read(message, "ss", &src, &dest); if (r < 0) return r; if (endswith(sd_bus_message_get_member(message), "WithFlags")) { uint64_t raw_flags; r = sd_bus_message_read(message, "t", &raw_flags); if (r < 0) return r; if ((raw_flags & ~_MACHINE_COPY_FLAGS_MASK_PUBLIC) != 0) return -EINVAL; if (raw_flags & MACHINE_COPY_REPLACE) copy_flags |= COPY_REPLACE; } if (!path_is_absolute(src) || !path_is_normalized(src)) return sd_bus_error_set(error, SD_BUS_ERROR_INVALID_ARGS, "Source path must be absolute and normalized."); if (isempty(dest)) dest = src; else if (!path_is_absolute(dest) || !path_is_normalized(dest)) return sd_bus_error_set(error, SD_BUS_ERROR_INVALID_ARGS, "Destination path must be absolute and normalized."); if (manager->runtime_scope != RUNTIME_SCOPE_USER) { const char *details[] = { "machine", m->name, "verb", "copy", "src", src, "dest", dest, NULL }; /* NB: For now not opened up to owner of machine without auth */ r = bus_verify_polkit_async( message, "org.freedesktop.machine1.manage-machines", details, &manager->polkit_registry, error); if (r < 0) return r; if (r == 0) return 1; /* Will call us back */ } copy_from = strstr(sd_bus_message_get_member(message), "CopyFrom"); if (copy_from) { container_path = src; host_path = dest; } else { host_path = src; container_path = dest; } Operation *op; r = machine_copy_from_to_operation(manager, m, host_path, container_path, copy_from, copy_flags, &op); if (r < 0) return sd_bus_error_set_errnof(error, r, "Failed to copy from/to machine '%s': %m", m->name); operation_attach_bus_reply(op, message); return 1; } int bus_machine_method_open_root_directory(sd_bus_message *message, void *userdata, sd_bus_error *error) { _cleanup_close_ int fd = -EBADF; Machine *m = ASSERT_PTR(userdata); int r; assert(message); if (m->manager->runtime_scope != RUNTIME_SCOPE_USER) { const char *details[] = { "machine", m->name, "verb", "open_root_directory", NULL }; /* NB: For now not opened up to owner of machine without auth */ r = bus_verify_polkit_async( message, "org.freedesktop.machine1.manage-machines", details, &m->manager->polkit_registry, error); if (r < 0) return r; if (r == 0) return 1; /* Will call us back */ } fd = machine_open_root_directory(m); if (ERRNO_IS_NEG_NOT_SUPPORTED(fd)) return sd_bus_error_set(error, SD_BUS_ERROR_NOT_SUPPORTED, "Opening the root directory is only supported on container machines."); if (fd < 0) return sd_bus_error_set_errnof(error, fd, "Failed to open root directory of machine '%s': %m", m->name); return sd_bus_reply_method_return(message, "h", fd); } int bus_machine_method_get_uid_shift(sd_bus_message *message, void *userdata, sd_bus_error *error) { Machine *m = ASSERT_PTR(userdata); uid_t shift = 0; int r; assert(message); /* You wonder why this is a method and not a property? Well, properties are not supposed to return errors, but * we kinda have to for this. */ if (m->class == MACHINE_HOST) return sd_bus_reply_method_return(message, "u", UINT32_C(0)); if (m->class != MACHINE_CONTAINER) return sd_bus_error_set(error, SD_BUS_ERROR_NOT_SUPPORTED, "UID/GID shift may only be determined for container machines."); r = machine_get_uid_shift(m, &shift); if (r == -ENXIO) return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED, "Machine %s uses a complex UID/GID mapping, cannot determine shift", m->name); if (r < 0) return r; return sd_bus_reply_method_return(message, "u", (uint32_t) shift); } static int machine_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error) { Manager *m = ASSERT_PTR(userdata); Machine *machine; int r; assert(bus); assert(path); assert(interface); assert(found); if (streq(path, "/org/freedesktop/machine1/machine/self")) { _cleanup_(pidref_done) PidRef pidref = PIDREF_NULL; _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL; sd_bus_message *message; message = sd_bus_get_current_message(bus); if (!message) return 0; r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_PID|SD_BUS_CREDS_PIDFD, &creds); if (r < 0) return r; r = bus_creds_get_pidref(creds, &pidref); if (r < 0) return r; r = manager_get_machine_by_pidref(m, &pidref, &machine); if (r <= 0) return 0; } else { _cleanup_free_ char *e = NULL; const char *p; p = startswith(path, "/org/freedesktop/machine1/machine/"); if (!p) return 0; e = bus_label_unescape(p); if (!e) return -ENOMEM; machine = hashmap_get(m->machines, e); if (!machine) return 0; } *found = machine; return 1; } char* machine_bus_path(Machine *m) { _cleanup_free_ char *e = NULL; assert(m); e = bus_label_escape(m->name); if (!e) return NULL; return strjoin("/org/freedesktop/machine1/machine/", e); } static int machine_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error) { _cleanup_strv_free_ char **l = NULL; Machine *machine = NULL; Manager *m = userdata; int r; assert(bus); assert(path); assert(nodes); HASHMAP_FOREACH(machine, m->machines) { char *p; p = machine_bus_path(machine); if (!p) return -ENOMEM; r = strv_consume(&l, p); if (r < 0) return r; } *nodes = TAKE_PTR(l); return 1; } static const sd_bus_vtable machine_vtable[] = { SD_BUS_VTABLE_START(0), SD_BUS_PROPERTY("Name", "s", NULL, offsetof(Machine, name), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("Id", "ay", bus_property_get_id128, offsetof(Machine, id), SD_BUS_VTABLE_PROPERTY_CONST), BUS_PROPERTY_DUAL_TIMESTAMP("Timestamp", offsetof(Machine, timestamp), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("Service", "s", NULL, offsetof(Machine, service), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("Unit", "s", NULL, offsetof(Machine, unit), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("Scope", "s", NULL, offsetof(Machine, unit), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN), SD_BUS_PROPERTY("Subgroup", "s", NULL, offsetof(Machine, subgroup), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("Leader", "u", bus_property_get_pid, offsetof(Machine, leader.pid), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("LeaderPIDFDId", "t", bus_property_get_pidfdid, offsetof(Machine, leader), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("Supervisor", "u", bus_property_get_pid, offsetof(Machine, supervisor.pid), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("SupervisorPIDFDId", "t", bus_property_get_pidfdid, offsetof(Machine, supervisor), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("Class", "s", property_get_class, offsetof(Machine, class), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("RootDirectory", "s", NULL, offsetof(Machine, root_directory), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("NetworkInterfaces", "ai", property_get_netif, 0, SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("VSockCID", "u", NULL, offsetof(Machine, vsock_cid), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("SSHAddress", "s", NULL, offsetof(Machine, ssh_address), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("SSHPrivateKeyPath", "s", NULL, offsetof(Machine, ssh_private_key_path), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_PROPERTY("State", "s", property_get_state, 0, 0), SD_BUS_PROPERTY("UID", "u", bus_property_get_uid, offsetof(Machine, uid), SD_BUS_VTABLE_PROPERTY_CONST), SD_BUS_METHOD("Terminate", NULL, NULL, bus_machine_method_terminate, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD_WITH_ARGS("Kill", SD_BUS_ARGS("s", whom, "i", signal), SD_BUS_NO_RESULT, bus_machine_method_kill, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD_WITH_ARGS("GetAddresses", SD_BUS_NO_ARGS, SD_BUS_RESULT("a(iay)", addresses), bus_machine_method_get_addresses, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD_WITH_ARGS("GetSSHInfo", SD_BUS_NO_ARGS, SD_BUS_RESULT("s", ssh_address, "s", ssh_private_key_path), bus_machine_method_get_ssh_info, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD_WITH_ARGS("GetOSRelease", SD_BUS_NO_ARGS, SD_BUS_RESULT("a{ss}", fields), bus_machine_method_get_os_release, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD_WITH_ARGS("GetUIDShift", SD_BUS_NO_ARGS, SD_BUS_RESULT("u", shift), bus_machine_method_get_uid_shift, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD_WITH_ARGS("OpenPTY", SD_BUS_NO_ARGS, SD_BUS_RESULT("h", pty, "s", pty_path), bus_machine_method_open_pty, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD_WITH_ARGS("OpenLogin", SD_BUS_NO_ARGS, SD_BUS_RESULT("h", pty, "s", pty_path), bus_machine_method_open_login, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD_WITH_ARGS("OpenShell", SD_BUS_ARGS("s", user, "s", path, "as", args, "as", environment), SD_BUS_RESULT("h", pty, "s", pty_path), bus_machine_method_open_shell, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD_WITH_ARGS("BindMount", SD_BUS_ARGS("s", source, "s", destination, "b", read_only, "b", mkdir), SD_BUS_NO_RESULT, bus_machine_method_bind_mount, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD_WITH_ARGS("CopyFrom", SD_BUS_ARGS("s", source, "s", destination), SD_BUS_NO_RESULT, bus_machine_method_copy, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD_WITH_ARGS("CopyTo", SD_BUS_ARGS("s", source, "s", destination), SD_BUS_NO_RESULT, bus_machine_method_copy, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD_WITH_ARGS("CopyFromWithFlags", SD_BUS_ARGS("s", source, "s", destination, "t", flags), SD_BUS_NO_RESULT, bus_machine_method_copy, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD_WITH_ARGS("CopyToWithFlags", SD_BUS_ARGS("s", source, "s", destination, "t", flags), SD_BUS_NO_RESULT, bus_machine_method_copy, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_METHOD_WITH_ARGS("OpenRootDirectory", SD_BUS_NO_ARGS, SD_BUS_RESULT("h", fd), bus_machine_method_open_root_directory, SD_BUS_VTABLE_UNPRIVILEGED), SD_BUS_VTABLE_END }; const BusObjectImplementation machine_object = { "/org/freedesktop/machine1/machine", "org.freedesktop.machine1.Machine", .fallback_vtables = BUS_FALLBACK_VTABLES({machine_vtable, machine_object_find}), .node_enumerator = machine_node_enumerator, }; int machine_send_signal(Machine *m, const char *signal_name) { assert(m); assert(signal_name); _cleanup_free_ char *p = machine_bus_path(m); if (!p) return -ENOMEM; return sd_bus_emit_signal( m->manager->api_bus, "/org/freedesktop/machine1", "org.freedesktop.machine1.Manager", signal_name, "so", m->name, p); } int machine_send_create_reply(Machine *m, sd_bus_error *error) { _cleanup_(sd_bus_message_unrefp) sd_bus_message *c = NULL; _cleanup_free_ char *p = NULL; assert(m); if (!m->create_message) return 0; c = TAKE_PTR(m->create_message); if (error) return sd_bus_reply_method_error(c, error); /* Update the machine state file before we notify the client * about the result. */ machine_save(m); p = machine_bus_path(m); if (!p) return -ENOMEM; return sd_bus_reply_method_return(c, "o", p); }