1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2013 Lennart Poettering
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 of the License, or
11 (at your option) any later version.
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
22 #ifdef HAVE_VALGRIND_MEMCHECK_H
23 #include <valgrind/memcheck.h>
32 #include "bus-internal.h"
33 #include "bus-message.h"
34 #include "bus-control.h"
35 #include "bus-bloom.h"
38 _public_ int sd_bus_get_unique_name(sd_bus *bus, const char **unique) {
41 assert_return(bus, -EINVAL);
42 assert_return(unique, -EINVAL);
43 assert_return(!bus_pid_changed(bus), -ECHILD);
45 r = bus_ensure_running(bus);
49 *unique = bus->unique_name;
53 _public_ int sd_bus_request_name(sd_bus *bus, const char *name, int flags) {
54 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
58 assert_return(bus, -EINVAL);
59 assert_return(name, -EINVAL);
60 assert_return(bus->bus_client, -EINVAL);
61 assert_return(BUS_IS_OPEN(bus->state), -ENOTCONN);
62 assert_return(!bus_pid_changed(bus), -ECHILD);
65 struct kdbus_cmd_name *n;
69 n = alloca0(offsetof(struct kdbus_cmd_name, name) + l + 1);
70 n->size = offsetof(struct kdbus_cmd_name, name) + l + 1;
71 kdbus_translate_request_name_flags(flags, (uint64_t *) &n->flags);
72 memcpy(n->name, name, l+1);
74 #ifdef HAVE_VALGRIND_MEMCHECK_H
75 VALGRIND_MAKE_MEM_DEFINED(n, n->size);
78 r = ioctl(bus->input_fd, KDBUS_CMD_NAME_ACQUIRE, n);
80 if (errno == -EALREADY)
81 return SD_BUS_NAME_ALREADY_OWNER;
84 return SD_BUS_NAME_EXISTS;
89 if (n->flags & KDBUS_NAME_IN_QUEUE)
90 return SD_BUS_NAME_IN_QUEUE;
92 return SD_BUS_NAME_PRIMARY_OWNER;
94 r = sd_bus_call_method(
96 "org.freedesktop.DBus",
98 "org.freedesktop.DBus",
108 r = sd_bus_message_read(reply, "u", &ret);
116 _public_ int sd_bus_release_name(sd_bus *bus, const char *name) {
117 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
121 assert_return(bus, -EINVAL);
122 assert_return(name, -EINVAL);
123 assert_return(bus->bus_client, -EINVAL);
124 assert_return(BUS_IS_OPEN(bus->state), -ENOTCONN);
125 assert_return(!bus_pid_changed(bus), -ECHILD);
127 if (bus->is_kernel) {
128 struct kdbus_cmd_name *n;
132 n = alloca0(offsetof(struct kdbus_cmd_name, name) + l + 1);
133 n->size = offsetof(struct kdbus_cmd_name, name) + l + 1;
134 memcpy(n->name, name, l+1);
136 #ifdef HAVE_VALGRIND_MEMCHECK_H
137 VALGRIND_MAKE_MEM_DEFINED(n, n->size);
139 r = ioctl(bus->input_fd, KDBUS_CMD_NAME_RELEASE, n);
145 r = sd_bus_call_method(
147 "org.freedesktop.DBus",
149 "org.freedesktop.DBus",
158 r = sd_bus_message_read(reply, "u", &ret);
166 _public_ int sd_bus_list_names(sd_bus *bus, char ***l) {
167 _cleanup_bus_message_unref_ sd_bus_message *reply1 = NULL, *reply2 = NULL;
171 assert_return(bus, -EINVAL);
172 assert_return(l, -EINVAL);
173 assert_return(BUS_IS_OPEN(bus->state), -ENOTCONN);
174 assert_return(!bus_pid_changed(bus), -ECHILD);
176 if (bus->is_kernel) {
177 _cleanup_free_ struct kdbus_cmd_name_list *cmd = NULL;
178 struct kdbus_name_list *name_list;
179 struct kdbus_cmd_name *name;
181 cmd = malloc0(sizeof(struct kdbus_cmd_name_list));
185 cmd->size = sizeof(struct kdbus_cmd_name_list);
186 cmd->flags = KDBUS_NAME_LIST_UNIQUE | KDBUS_NAME_LIST_NAMES;
188 r = ioctl(sd_bus_get_fd(bus), KDBUS_CMD_NAME_LIST, cmd);
192 name_list = (struct kdbus_name_list *) ((uint8_t *) bus->kdbus_buffer + cmd->offset);
194 KDBUS_PART_FOREACH(name, name_list, names) {
197 if (name->size > sizeof(*name))
200 asprintf(&n, ":1.%llu", (unsigned long long) name->id);
202 r = strv_extend(&x, n);
207 r = ioctl(sd_bus_get_fd(bus), KDBUS_CMD_FREE, &cmd->offset);
213 r = sd_bus_call_method(
215 "org.freedesktop.DBus",
217 "org.freedesktop.DBus",
225 r = sd_bus_call_method(
227 "org.freedesktop.DBus",
229 "org.freedesktop.DBus",
230 "ListActivatableNames",
237 r = bus_message_read_strv_extend(reply1, &x);
243 r = bus_message_read_strv_extend(reply2, &x);
255 static int bus_get_owner_dbus(
259 sd_bus_creds **creds) {
261 _cleanup_bus_message_unref_ sd_bus_message *reply_unique = NULL, *reply = NULL;
262 _cleanup_bus_creds_unref_ sd_bus_creds *c = NULL;
263 const char *unique = NULL;
267 /* Only query the owner if the caller wants to know it or if
268 * the caller just wants to check whether a name exists */
269 if ((mask & SD_BUS_CREDS_UNIQUE_NAME) || mask == 0) {
270 r = sd_bus_call_method(
272 "org.freedesktop.DBus",
274 "org.freedesktop.DBus",
283 r = sd_bus_message_read(reply_unique, "s", &unique);
293 if ((mask & SD_BUS_CREDS_UNIQUE_NAME) && unique) {
294 c->unique_name = strdup(unique);
298 c->mask |= SD_BUS_CREDS_UNIQUE_NAME;
301 if (mask & (SD_BUS_CREDS_PID|SD_BUS_CREDS_PID_STARTTIME|SD_BUS_CREDS_GID|
302 SD_BUS_CREDS_COMM|SD_BUS_CREDS_EXE|SD_BUS_CREDS_CMDLINE|
303 SD_BUS_CREDS_CGROUP|SD_BUS_CREDS_UNIT|SD_BUS_CREDS_USER_UNIT|SD_BUS_CREDS_SLICE|SD_BUS_CREDS_SESSION|SD_BUS_CREDS_OWNER_UID|
304 SD_BUS_CREDS_EFFECTIVE_CAPS|SD_BUS_CREDS_PERMITTED_CAPS|SD_BUS_CREDS_INHERITABLE_CAPS|SD_BUS_CREDS_BOUNDING_CAPS|
305 SD_BUS_CREDS_AUDIT_SESSION_ID|SD_BUS_CREDS_AUDIT_LOGIN_UID)) {
308 r = sd_bus_call_method(
310 "org.freedesktop.DBus",
312 "org.freedesktop.DBus",
313 "GetConnectionUnixProcessID",
317 unique ? unique : name);
321 r = sd_bus_message_read(reply, "u", &u);
326 if (mask & SD_BUS_CREDS_PID) {
328 c->mask |= SD_BUS_CREDS_PID;
331 reply = sd_bus_message_unref(reply);
334 if (mask & SD_BUS_CREDS_UID) {
337 r = sd_bus_call_method(
339 "org.freedesktop.DBus",
341 "org.freedesktop.DBus",
342 "GetConnectionUnixUser",
346 unique ? unique : name);
350 r = sd_bus_message_read(reply, "u", &u);
355 c->mask |= SD_BUS_CREDS_UID;
357 reply = sd_bus_message_unref(reply);
360 if (mask & SD_BUS_CREDS_SELINUX_CONTEXT) {
364 r = sd_bus_call_method(
366 "org.freedesktop.DBus",
368 "org.freedesktop.DBus",
369 "GetConnectionSELinuxSecurityContext",
373 unique ? unique : name);
377 r = sd_bus_message_read_array(reply, 'y', &p, &sz);
381 c->label = strndup(p, sz);
385 c->mask |= SD_BUS_CREDS_SELINUX_CONTEXT;
388 r = bus_creds_add_more(c, mask, pid, 0);
401 static int bus_get_owner_kdbus(
405 sd_bus_creds **creds) {
407 _cleanup_bus_creds_unref_ sd_bus_creds *c = NULL;
408 struct kdbus_cmd_conn_info *cmd;
409 struct kdbus_conn_info *conn_info;
410 struct kdbus_item *item;
415 r = bus_kernel_parse_unique_name(name, &id);
419 size = offsetof(struct kdbus_cmd_conn_info, name);
423 size = offsetof(struct kdbus_cmd_conn_info, name) + strlen(name) + 1;
425 strcpy(cmd->name, name);
429 r = ioctl(bus->input_fd, KDBUS_CMD_CONN_INFO, cmd);
433 conn_info = (struct kdbus_conn_info *) ((uint8_t *) bus->kdbus_buffer + cmd->offset);
439 if (mask & SD_BUS_CREDS_UNIQUE_NAME) {
440 if (asprintf(&c->unique_name, ":1.%llu", (unsigned long long) conn_info->id) < 0)
443 c->mask |= SD_BUS_CREDS_UNIQUE_NAME;
446 KDBUS_PART_FOREACH(item, conn_info, items) {
448 switch (item->type) {
450 case KDBUS_ITEM_CREDS:
451 m = (SD_BUS_CREDS_UID | SD_BUS_CREDS_GID | SD_BUS_CREDS_PID |
452 SD_BUS_CREDS_TID | SD_BUS_CREDS_PID_STARTTIME) & mask;
455 c->uid = item->creds.uid;
456 c->pid = item->creds.pid;
457 c->gid = item->creds.gid;
458 c->tid = item->creds.tid;
459 c->pid_starttime = item->creds.starttime;
464 case KDBUS_ITEM_PID_COMM:
465 if (mask & SD_BUS_CREDS_COMM) {
466 c->comm = strdup(item->str);
472 c->mask |= SD_BUS_CREDS_COMM;
476 case KDBUS_ITEM_TID_COMM:
477 if (mask & SD_BUS_CREDS_TID_COMM) {
478 c->tid_comm = strdup(item->str);
484 c->mask |= SD_BUS_CREDS_TID_COMM;
489 if (mask & SD_BUS_CREDS_EXE) {
490 c->exe = strdup(item->str);
496 c->mask |= SD_BUS_CREDS_EXE;
500 case KDBUS_ITEM_CMDLINE:
501 if (mask & SD_BUS_CREDS_CMDLINE) {
502 c->cmdline_size = item->size - KDBUS_PART_HEADER_SIZE;
503 c->cmdline = memdup(item->data, c->cmdline_size);
509 c->mask |= SD_BUS_CREDS_CMDLINE;
513 case KDBUS_ITEM_CGROUP:
514 m = (SD_BUS_CREDS_CGROUP | SD_BUS_CREDS_UNIT |
515 SD_BUS_CREDS_USER_UNIT | SD_BUS_CREDS_SLICE |
516 SD_BUS_CREDS_SESSION | SD_BUS_CREDS_OWNER_UID) & mask;
519 c->cgroup = strdup(item->str);
529 case KDBUS_ITEM_CAPS:
530 m = (SD_BUS_CREDS_EFFECTIVE_CAPS | SD_BUS_CREDS_PERMITTED_CAPS |
531 SD_BUS_CREDS_INHERITABLE_CAPS | SD_BUS_CREDS_BOUNDING_CAPS) & mask;
534 c->capability_size = item->size - KDBUS_PART_HEADER_SIZE;
535 c->capability = memdup(item->data, c->capability_size);
536 if (!c->capability) {
545 case KDBUS_ITEM_SECLABEL:
546 if (mask & SD_BUS_CREDS_SELINUX_CONTEXT) {
547 c->label = strdup(item->str);
553 c->mask |= SD_BUS_CREDS_SELINUX_CONTEXT;
557 case KDBUS_ITEM_AUDIT:
558 m = (SD_BUS_CREDS_AUDIT_SESSION_ID | SD_BUS_CREDS_AUDIT_LOGIN_UID) & mask;
561 c->audit_session_id = item->audit.sessionid;
562 c->audit_login_uid = item->audit.loginuid;
567 case KDBUS_ITEM_NAMES:
568 if (mask & SD_BUS_CREDS_WELL_KNOWN_NAMES) {
569 c->well_known_names_size = item->size - KDBUS_PART_HEADER_SIZE;
570 c->well_known_names = memdup(item->data, c->well_known_names_size);
571 if (!c->well_known_names) {
576 c->mask |= SD_BUS_CREDS_WELL_KNOWN_NAMES;
590 ioctl(bus->input_fd, KDBUS_CMD_FREE, &cmd->offset);
594 _public_ int sd_bus_get_owner(
598 sd_bus_creds **creds) {
600 assert_return(bus, -EINVAL);
601 assert_return(name, -EINVAL);
602 assert_return(mask <= _SD_BUS_CREDS_ALL, -ENOTSUP);
603 assert_return(mask == 0 || creds, -EINVAL);
604 assert_return(BUS_IS_OPEN(bus->state), -ENOTCONN);
605 assert_return(!bus_pid_changed(bus), -ECHILD);
608 return bus_get_owner_kdbus(bus, name, mask, creds);
610 return bus_get_owner_dbus(bus, name, mask, creds);
613 static int add_name_change_match(sd_bus *bus,
616 const char *old_owner,
617 const char *new_owner) {
619 uint64_t name_id = 0, old_owner_id = 0, new_owner_id = 0;
620 int is_name_id = -1, r;
621 struct kdbus_item *item;
625 /* If we encounter a match that could match against
626 * NameOwnerChanged messages, then we need to create
627 * KDBUS_MATCH_NAME_{ADD,REMOVE,CHANGE} and
628 * KDBUS_MATCH_ID_{ADD,REMOVE} matches for it, possibly
629 * multiple if the match is underspecified.
631 * The NameOwnerChanged signals take three parameters with
632 * unique or well-known names, but only some forms actually
635 * WELLKNOWN, "", UNIQUE → KDBUS_MATCH_NAME_ADD
636 * WELLKNOWN, UNIQUE, "" → KDBUS_MATCH_NAME_REMOVE
637 * WELLKNOWN, UNIQUE, UNIQUE → KDBUS_MATCH_NAME_CHANGE
638 * UNIQUE, "", UNIQUE → KDBUS_MATCH_ID_ADD
639 * UNIQUE, UNIQUE, "" → KDBUS_MATCH_ID_REMOVE
641 * For the latter two the two unique names must be identical.
646 is_name_id = bus_kernel_parse_unique_name(name, &name_id);
652 r = bus_kernel_parse_unique_name(old_owner, &old_owner_id);
657 if (is_name_id > 0 && old_owner_id != name_id)
662 r = bus_kernel_parse_unique_name(new_owner, &new_owner_id);
667 if (is_name_id > 0 && new_owner_id != name_id)
671 if (is_name_id <= 0) {
672 struct kdbus_cmd_match *m;
675 /* If the name argument is missing or is a well-known
676 * name, then add KDBUS_MATCH_NAME_{ADD,REMOVE,CHANGE}
679 l = name ? strlen(name) : 0;
681 sz = ALIGN8(offsetof(struct kdbus_cmd_match, items) +
682 offsetof(struct kdbus_item, name_change) +
683 offsetof(struct kdbus_notify_name_change, name) +
689 m->src_id = KDBUS_SRC_ID_KERNEL;
693 offsetof(struct kdbus_item, name_change) +
694 offsetof(struct kdbus_notify_name_change, name) +
697 item->name_change.old_id = old_owner_id;
698 item->name_change.new_id = new_owner_id;
701 strcpy(item->name_change.name, name);
703 /* If the old name is unset or empty, then
704 * this can match against added names */
705 if (!old_owner || old_owner[0] == 0) {
706 item->type = KDBUS_MATCH_NAME_ADD;
708 r = ioctl(bus->input_fd, KDBUS_CMD_MATCH_ADD, m);
713 /* If the new name is unset or empty, then
714 * this can match against removed names */
715 if (!new_owner || new_owner[0] == 0) {
716 item->type = KDBUS_MATCH_NAME_REMOVE;
718 r = ioctl(bus->input_fd, KDBUS_CMD_MATCH_ADD, m);
723 /* If the neither name is explicitly set to
724 * the empty string, then this can match
725 * agains changed names */
726 if (!(old_owner && old_owner[0] == 0) &&
727 !(new_owner && new_owner[0] == 0)) {
728 item->type = KDBUS_MATCH_NAME_CHANGE;
730 r = ioctl(bus->input_fd, KDBUS_CMD_MATCH_ADD, m);
736 if (is_name_id != 0) {
737 struct kdbus_cmd_match *m;
740 /* If the name argument is missing or is a unique
741 * name, then add KDBUS_MATCH_ID_{ADD,REMOVE} matches
744 sz = ALIGN8(offsetof(struct kdbus_cmd_match, items) +
745 offsetof(struct kdbus_item, id_change) +
746 sizeof(struct kdbus_notify_id_change));
751 m->src_id = KDBUS_SRC_ID_KERNEL;
754 item->size = offsetof(struct kdbus_item, id_change) + sizeof(struct kdbus_notify_id_change);
755 item->id_change.id = name_id;
757 /* If the old name is unset or empty, then this can
758 * match against added ids */
759 if (!old_owner || old_owner[0] == 0) {
760 item->type = KDBUS_MATCH_ID_ADD;
762 r = ioctl(bus->input_fd, KDBUS_CMD_MATCH_ADD, m);
767 /* If thew new name is unset or empty, then this can
768 match against removed ids */
769 if (!new_owner || new_owner[0] == 0) {
770 item->type = KDBUS_MATCH_ID_REMOVE;
772 r = ioctl(bus->input_fd, KDBUS_CMD_MATCH_ADD, m);
781 int bus_add_match_internal(
784 struct bus_match_component *components,
785 unsigned n_components,
793 if (bus->is_kernel) {
794 struct kdbus_cmd_match *m;
795 struct kdbus_item *item;
796 uint64_t bloom[BLOOM_SIZE/8];
798 const char *sender = NULL;
799 size_t sender_length = 0;
800 uint64_t src_id = KDBUS_MATCH_SRC_ID_ANY;
801 bool using_bloom = false;
803 bool matches_name_change = true;
804 const char *name_change_arg[3] = {};
808 sz = offsetof(struct kdbus_cmd_match, items);
810 for (i = 0; i < n_components; i++) {
811 struct bus_match_component *c = &components[i];
815 case BUS_MATCH_SENDER:
816 if (!streq(c->value_str, "org.freedesktop.DBus"))
817 matches_name_change = false;
819 r = bus_kernel_parse_unique_name(c->value_str, &src_id);
824 sender = c->value_str;
825 sender_length = strlen(sender);
826 sz += ALIGN8(offsetof(struct kdbus_item, str) + sender_length + 1);
831 case BUS_MATCH_MESSAGE_TYPE:
832 if (c->value_u8 != SD_BUS_MESSAGE_SIGNAL)
833 matches_name_change = false;
835 bloom_add_pair(bloom, "message-type", bus_message_type_to_string(c->value_u8));
839 case BUS_MATCH_INTERFACE:
840 if (!streq(c->value_str, "org.freedesktop.DBus"))
841 matches_name_change = false;
843 bloom_add_pair(bloom, "interface", c->value_str);
847 case BUS_MATCH_MEMBER:
848 if (!streq(c->value_str, "NameOwnerChanged"))
849 matches_name_change = false;
851 bloom_add_pair(bloom, "member", c->value_str);
856 if (!streq(c->value_str, "/org/freedesktop/DBus"))
857 matches_name_change = false;
859 bloom_add_pair(bloom, "path", c->value_str);
863 case BUS_MATCH_PATH_NAMESPACE:
864 if (!streq(c->value_str, "/")) {
865 bloom_add_pair(bloom, "path-slash-prefix", c->value_str);
870 case BUS_MATCH_ARG...BUS_MATCH_ARG_LAST: {
871 char buf[sizeof("arg")-1 + 2 + 1];
873 if (c->type - BUS_MATCH_ARG < 3)
874 name_change_arg[c->type - BUS_MATCH_ARG] = c->value_str;
876 snprintf(buf, sizeof(buf), "arg%u", c->type - BUS_MATCH_ARG);
877 bloom_add_pair(bloom, buf, c->value_str);
882 case BUS_MATCH_ARG_PATH...BUS_MATCH_ARG_PATH_LAST: {
883 char buf[sizeof("arg")-1 + 2 + sizeof("-slash-prefix")];
885 snprintf(buf, sizeof(buf), "arg%u-slash-prefix", c->type - BUS_MATCH_ARG_PATH);
886 bloom_add_pair(bloom, buf, c->value_str);
891 case BUS_MATCH_ARG_NAMESPACE...BUS_MATCH_ARG_NAMESPACE_LAST: {
892 char buf[sizeof("arg")-1 + 2 + sizeof("-dot-prefix")];
894 snprintf(buf, sizeof(buf), "arg%u-dot-prefix", c->type - BUS_MATCH_ARG_NAMESPACE);
895 bloom_add_pair(bloom, buf, c->value_str);
900 case BUS_MATCH_DESTINATION:
901 /* The bloom filter does not include
902 the destination, since it is only
903 available for broadcast messages
904 which do not carry a destination
905 since they are undirected. */
909 case BUS_MATCH_VALUE:
911 case _BUS_MATCH_NODE_TYPE_MAX:
912 case _BUS_MATCH_NODE_TYPE_INVALID:
913 assert_not_reached("Invalid match type?");
918 sz += ALIGN8(offsetof(struct kdbus_item, data64) + BLOOM_SIZE);
928 item->size = offsetof(struct kdbus_item, data64) + BLOOM_SIZE;
929 item->type = KDBUS_MATCH_BLOOM;
930 memcpy(item->data64, bloom, BLOOM_SIZE);
932 item = KDBUS_PART_NEXT(item);
936 item->size = offsetof(struct kdbus_item, str) + sender_length + 1;
937 item->type = KDBUS_MATCH_SRC_NAME;
938 memcpy(item->str, sender, sender_length + 1);
941 r = ioctl(bus->input_fd, KDBUS_CMD_MATCH_ADD, m);
945 if (matches_name_change) {
947 /* If this match could theoretically match
948 * NameOwnerChanged messages, we need to
949 * install a second non-bloom filter explitly
952 r = add_name_change_match(bus, cookie, name_change_arg[0], name_change_arg[1], name_change_arg[2]);
959 return sd_bus_call_method(
961 "org.freedesktop.DBus",
963 "org.freedesktop.DBus",
971 int bus_remove_match_internal(
981 if (bus->is_kernel) {
982 struct kdbus_cmd_match m;
985 m.size = offsetof(struct kdbus_cmd_match, items);
988 r = ioctl(bus->input_fd, KDBUS_CMD_MATCH_REMOVE, &m);
995 return sd_bus_call_method(
997 "org.freedesktop.DBus",
999 "org.freedesktop.DBus",
1008 _public_ int sd_bus_get_owner_machine_id(sd_bus *bus, const char *name, sd_id128_t *machine) {
1009 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL, *m = NULL;
1013 assert_return(bus, -EINVAL);
1014 assert_return(name, -EINVAL);
1015 assert_return(machine, -EINVAL);
1016 assert_return(BUS_IS_OPEN(bus->state), -ENOTCONN);
1017 assert_return(!bus_pid_changed(bus), -ECHILD);
1019 if (streq_ptr(name, bus->unique_name))
1020 return sd_id128_get_machine(machine);
1022 r = sd_bus_message_new_method_call(
1026 "org.freedesktop.DBus.Peer",
1027 "GetMachineId", &m);
1031 r = sd_bus_message_set_no_auto_start(m, true);
1035 r = sd_bus_call(bus, m, 0, NULL, &reply);
1039 r = sd_bus_message_read(reply, "s", &mid);
1043 return sd_id128_from_string(mid, machine);