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Systemd/src/core/dbus-socket.c
Lennart Poettering 7a8867abfa user-util: rework how we validate user names 
This reworks the user validation infrastructure. There are now two
modes. In regular mode we are strict and test against a strict set of
valid chars. And in "relaxed" mode we just filter out some really
obvious, dangerous stuff. i.e. strict is whitelisting what is OK, but
"relaxed" is blacklisting what is really not OK.

The idea is that we use strict mode whenver we allocate a new user
(i.e. in sysusers.d or homed), while "relaxed" mode is when we process
users registered elsewhere, (i.e. userdb, logind, …)

The requirements on user name validity vary wildly. SSSD thinks its fine
to embedd "@" for example, while the suggested NAME_REGEX field on
Debian does not even allow uppercase chars…

This effectively liberaralizes a lot what we expect from usernames.

The code that warns about questionnable user names is now optional and
only used at places such as unit file parsing, so that it doesn't show
up on every userdb query, but only when processing configuration files
that know better.

Fixes: #15149 #15090
2020-04-08 17:11:20 +02:00

473 lines
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/* SPDX-License-Identifier: LGPL-2.1+ */
#include "alloc-util.h"
#include "bus-util.h"
#include "dbus-cgroup.h"
#include "dbus-execute.h"
#include "dbus-kill.h"
#include "dbus-socket.h"
#include "dbus-util.h"
#include "fd-util.h"
#include "ip-protocol-list.h"
#include "parse-util.h"
#include "path-util.h"
#include "socket.h"
#include "socket-netlink.h"
#include "socket-util.h"
#include "string-util.h"
#include "unit.h"
static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_result, socket_result, SocketResult);
static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_bind_ipv6_only, socket_address_bind_ipv6_only, SocketAddressBindIPv6Only);
static BUS_DEFINE_PROPERTY_GET(property_get_fdname, "s", Socket, socket_fdname);
static int property_get_listen(
sd_bus *bus,
const char *path,
const char *interface,
const char *property,
sd_bus_message *reply,
void *userdata,
sd_bus_error *error) {
Socket *s = SOCKET(userdata);
SocketPort *p;
int r;
assert(bus);
assert(reply);
assert(s);
r = sd_bus_message_open_container(reply, 'a', "(ss)");
if (r < 0)
return r;
LIST_FOREACH(port, p, s->ports) {
_cleanup_free_ char *address = NULL;
const char *a;
switch (p->type) {
case SOCKET_SOCKET: {
r = socket_address_print(&p->address, &address);
if (r)
return r;
a = address;
break;
}
case SOCKET_SPECIAL:
case SOCKET_MQUEUE:
case SOCKET_FIFO:
case SOCKET_USB_FUNCTION:
a = p->path;
break;
default:
assert_not_reached("Unknown socket type");
}
r = sd_bus_message_append(reply, "(ss)", socket_port_type_to_string(p), a);
if (r < 0)
return r;
}
return sd_bus_message_close_container(reply);
}
const sd_bus_vtable bus_socket_vtable[] = {
SD_BUS_VTABLE_START(0),
SD_BUS_PROPERTY("BindIPv6Only", "s", property_get_bind_ipv6_only, offsetof(Socket, bind_ipv6_only), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("Backlog", "u", bus_property_get_unsigned, offsetof(Socket, backlog), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("TimeoutUSec", "t", bus_property_get_usec, offsetof(Socket, timeout_usec), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("BindToDevice", "s", NULL, offsetof(Socket, bind_to_device), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("SocketUser", "s", NULL, offsetof(Socket, user), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("SocketGroup", "s", NULL, offsetof(Socket, group), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("SocketMode", "u", bus_property_get_mode, offsetof(Socket, socket_mode), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("DirectoryMode", "u", bus_property_get_mode, offsetof(Socket, directory_mode), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("Accept", "b", bus_property_get_bool, offsetof(Socket, accept), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("Writable", "b", bus_property_get_bool, offsetof(Socket, writable), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("KeepAlive", "b", bus_property_get_bool, offsetof(Socket, keep_alive), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("KeepAliveTimeUSec", "t", bus_property_get_usec, offsetof(Socket, keep_alive_time), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("KeepAliveIntervalUSec", "t", bus_property_get_usec, offsetof(Socket, keep_alive_interval), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("KeepAliveProbes", "u", bus_property_get_unsigned, offsetof(Socket, keep_alive_cnt), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("DeferAcceptUSec" , "t", bus_property_get_usec, offsetof(Socket, defer_accept), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("NoDelay", "b", bus_property_get_bool, offsetof(Socket, no_delay), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("Priority", "i", bus_property_get_int, offsetof(Socket, priority), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("ReceiveBuffer", "t", bus_property_get_size, offsetof(Socket, receive_buffer), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("SendBuffer", "t", bus_property_get_size, offsetof(Socket, send_buffer), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("IPTOS", "i", bus_property_get_int, offsetof(Socket, ip_tos), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("IPTTL", "i", bus_property_get_int, offsetof(Socket, ip_ttl), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("PipeSize", "t", bus_property_get_size, offsetof(Socket, pipe_size), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("FreeBind", "b", bus_property_get_bool, offsetof(Socket, free_bind), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("Transparent", "b", bus_property_get_bool, offsetof(Socket, transparent), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("Broadcast", "b", bus_property_get_bool, offsetof(Socket, broadcast), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("PassCredentials", "b", bus_property_get_bool, offsetof(Socket, pass_cred), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("PassSecurity", "b", bus_property_get_bool, offsetof(Socket, pass_sec), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("RemoveOnStop", "b", bus_property_get_bool, offsetof(Socket, remove_on_stop), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("Listen", "a(ss)", property_get_listen, 0, SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("Symlinks", "as", NULL, offsetof(Socket, symlinks), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("Mark", "i", bus_property_get_int, offsetof(Socket, mark), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("MaxConnections", "u", bus_property_get_unsigned, offsetof(Socket, max_connections), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("MaxConnectionsPerSource", "u", bus_property_get_unsigned, offsetof(Socket, max_connections_per_source), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("MessageQueueMaxMessages", "x", bus_property_get_long, offsetof(Socket, mq_maxmsg), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("MessageQueueMessageSize", "x", bus_property_get_long, offsetof(Socket, mq_msgsize), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("TCPCongestion", "s", NULL, offsetof(Socket, tcp_congestion), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("ReusePort", "b", bus_property_get_bool, offsetof(Socket, reuse_port), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("SmackLabel", "s", NULL, offsetof(Socket, smack), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("SmackLabelIPIn", "s", NULL, offsetof(Socket, smack_ip_in), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("SmackLabelIPOut", "s", NULL, offsetof(Socket, smack_ip_out), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("ControlPID", "u", bus_property_get_pid, offsetof(Socket, control_pid), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
SD_BUS_PROPERTY("Result", "s", property_get_result, offsetof(Socket, result), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
SD_BUS_PROPERTY("NConnections", "u", bus_property_get_unsigned, offsetof(Socket, n_connections), 0),
SD_BUS_PROPERTY("NAccepted", "u", bus_property_get_unsigned, offsetof(Socket, n_accepted), 0),
SD_BUS_PROPERTY("NRefused", "u", bus_property_get_unsigned, offsetof(Socket, n_refused), 0),
SD_BUS_PROPERTY("FileDescriptorName", "s", property_get_fdname, 0, 0),
SD_BUS_PROPERTY("SocketProtocol", "i", bus_property_get_int, offsetof(Socket, socket_protocol), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("TriggerLimitIntervalUSec", "t", bus_property_get_usec, offsetof(Socket, trigger_limit.interval), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("TriggerLimitBurst", "u", bus_property_get_unsigned, offsetof(Socket, trigger_limit.burst), SD_BUS_VTABLE_PROPERTY_CONST),
SD_BUS_PROPERTY("UID", "u", bus_property_get_uid, offsetof(Unit, ref_uid), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
SD_BUS_PROPERTY("GID", "u", bus_property_get_gid, offsetof(Unit, ref_gid), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
BUS_EXEC_COMMAND_LIST_VTABLE("ExecStartPre", offsetof(Socket, exec_command[SOCKET_EXEC_START_PRE]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
BUS_EXEC_COMMAND_LIST_VTABLE("ExecStartPost", offsetof(Socket, exec_command[SOCKET_EXEC_START_POST]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
BUS_EXEC_COMMAND_LIST_VTABLE("ExecStopPre", offsetof(Socket, exec_command[SOCKET_EXEC_STOP_PRE]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
BUS_EXEC_COMMAND_LIST_VTABLE("ExecStopPost", offsetof(Socket, exec_command[SOCKET_EXEC_STOP_POST]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
SD_BUS_VTABLE_END
};
static bool check_size_t_truncation(uint64_t t) {
return (size_t) t == t;
}
static const char* socket_protocol_to_string(int32_t i) {
if (i == IPPROTO_IP)
return "";
if (!IN_SET(i, IPPROTO_UDPLITE, IPPROTO_SCTP))
return NULL;
return ip_protocol_to_name(i);
}
static BUS_DEFINE_SET_TRANSIENT(int, "i", int32_t, int, "%" PRIi32);
static BUS_DEFINE_SET_TRANSIENT(message_queue, "x", int64_t, long, "%" PRIi64);
static BUS_DEFINE_SET_TRANSIENT_IS_VALID(size_t_check_truncation, "t", uint64_t, size_t, "%" PRIu64, check_size_t_truncation);
static BUS_DEFINE_SET_TRANSIENT_PARSE(bind_ipv6_only, SocketAddressBindIPv6Only, socket_address_bind_ipv6_only_or_bool_from_string);
static BUS_DEFINE_SET_TRANSIENT_STRING_WITH_CHECK(fdname, fdname_is_valid);
static BUS_DEFINE_SET_TRANSIENT_STRING_WITH_CHECK(ifname, ifname_valid);
static BUS_DEFINE_SET_TRANSIENT_TO_STRING_ALLOC(ip_tos, "i", int32_t, int, "%" PRIi32, ip_tos_to_string_alloc);
static BUS_DEFINE_SET_TRANSIENT_TO_STRING(socket_protocol, "i", int32_t, int, "%" PRIi32, socket_protocol_to_string);
static int bus_socket_set_transient_property(
Socket *s,
const char *name,
sd_bus_message *message,
UnitWriteFlags flags,
sd_bus_error *error) {
SocketExecCommand ci;
Unit *u = UNIT(s);
int r;
assert(s);
assert(name);
assert(message);
flags |= UNIT_PRIVATE;
if (streq(name, "Accept"))
return bus_set_transient_bool(u, name, &s->accept, message, flags, error);
if (streq(name, "Writable"))
return bus_set_transient_bool(u, name, &s->writable, message, flags, error);
if (streq(name, "KeepAlive"))
return bus_set_transient_bool(u, name, &s->keep_alive, message, flags, error);
if (streq(name, "NoDelay"))
return bus_set_transient_bool(u, name, &s->no_delay, message, flags, error);
if (streq(name, "FreeBind"))
return bus_set_transient_bool(u, name, &s->free_bind, message, flags, error);
if (streq(name, "Transparent"))
return bus_set_transient_bool(u, name, &s->transparent, message, flags, error);
if (streq(name, "Broadcast"))
return bus_set_transient_bool(u, name, &s->broadcast, message, flags, error);
if (streq(name, "PassCredentials"))
return bus_set_transient_bool(u, name, &s->pass_cred, message, flags, error);
if (streq(name, "PassSecurity"))
return bus_set_transient_bool(u, name, &s->pass_sec, message, flags, error);
if (streq(name, "ReusePort"))
return bus_set_transient_bool(u, name, &s->reuse_port, message, flags, error);
if (streq(name, "RemoveOnStop"))
return bus_set_transient_bool(u, name, &s->remove_on_stop, message, flags, error);
if (streq(name, "SELinuxContextFromNet"))
return bus_set_transient_bool(u, name, &s->selinux_context_from_net, message, flags, error);
if (streq(name, "Priority"))
return bus_set_transient_int(u, name, &s->priority, message, flags, error);
if (streq(name, "IPTTL"))
return bus_set_transient_int(u, name, &s->ip_ttl, message, flags, error);
if (streq(name, "Mark"))
return bus_set_transient_int(u, name, &s->mark, message, flags, error);
if (streq(name, "Backlog"))
return bus_set_transient_unsigned(u, name, &s->backlog, message, flags, error);
if (streq(name, "MaxConnections"))
return bus_set_transient_unsigned(u, name, &s->max_connections, message, flags, error);
if (streq(name, "MaxConnectionsPerSource"))
return bus_set_transient_unsigned(u, name, &s->max_connections_per_source, message, flags, error);
if (streq(name, "KeepAliveProbes"))
return bus_set_transient_unsigned(u, name, &s->keep_alive_cnt, message, flags, error);
if (streq(name, "TriggerLimitBurst"))
return bus_set_transient_unsigned(u, name, &s->trigger_limit.burst, message, flags, error);
if (streq(name, "SocketMode"))
return bus_set_transient_mode_t(u, name, &s->socket_mode, message, flags, error);
if (streq(name, "DirectoryMode"))
return bus_set_transient_mode_t(u, name, &s->directory_mode, message, flags, error);
if (streq(name, "MessageQueueMaxMessages"))
return bus_set_transient_message_queue(u, name, &s->mq_maxmsg, message, flags, error);
if (streq(name, "MessageQueueMessageSize"))
return bus_set_transient_message_queue(u, name, &s->mq_msgsize, message, flags, error);
if (streq(name, "TimeoutUSec"))
return bus_set_transient_usec_fix_0(u, name, &s->timeout_usec, message, flags, error);
if (streq(name, "KeepAliveTimeUSec"))
return bus_set_transient_usec(u, name, &s->keep_alive_time, message, flags, error);
if (streq(name, "KeepAliveIntervalUSec"))
return bus_set_transient_usec(u, name, &s->keep_alive_interval, message, flags, error);
if (streq(name, "DeferAcceptUSec"))
return bus_set_transient_usec(u, name, &s->defer_accept, message, flags, error);
if (streq(name, "TriggerLimitIntervalUSec"))
return bus_set_transient_usec(u, name, &s->trigger_limit.interval, message, flags, error);
if (streq(name, "SmackLabel"))
return bus_set_transient_string(u, name, &s->smack, message, flags, error);
if (streq(name, "SmackLabelIPin"))
return bus_set_transient_string(u, name, &s->smack_ip_in, message, flags, error);
if (streq(name, "SmackLabelIPOut"))
return bus_set_transient_string(u, name, &s->smack_ip_out, message, flags, error);
if (streq(name, "TCPCongestion"))
return bus_set_transient_string(u, name, &s->tcp_congestion, message, flags, error);
if (streq(name, "FileDescriptorName"))
return bus_set_transient_fdname(u, name, &s->fdname, message, flags, error);
if (streq(name, "SocketUser"))
return bus_set_transient_user_relaxed(u, name, &s->user, message, flags, error);
if (streq(name, "SocketGroup"))
return bus_set_transient_user_relaxed(u, name, &s->group, message, flags, error);
if (streq(name, "BindIPv6Only"))
return bus_set_transient_bind_ipv6_only(u, name, &s->bind_ipv6_only, message, flags, error);
if (streq(name, "ReceiveBuffer"))
return bus_set_transient_size_t_check_truncation(u, name, &s->receive_buffer, message, flags, error);
if (streq(name, "SendBuffer"))
return bus_set_transient_size_t_check_truncation(u, name, &s->send_buffer, message, flags, error);
if (streq(name, "PipeSize"))
return bus_set_transient_size_t_check_truncation(u, name, &s->pipe_size, message, flags, error);
if (streq(name, "BindToDevice"))
return bus_set_transient_ifname(u, name, &s->bind_to_device, message, flags, error);
if (streq(name, "IPTOS"))
return bus_set_transient_ip_tos(u, name, &s->ip_tos, message, flags, error);
if (streq(name, "SocketProtocol"))
return bus_set_transient_socket_protocol(u, name, &s->socket_protocol, message, flags, error);
ci = socket_exec_command_from_string(name);
if (ci >= 0)
return bus_set_transient_exec_command(u, name,
&s->exec_command[ci],
message, flags, error);
if (streq(name, "Symlinks")) {
_cleanup_strv_free_ char **l = NULL;
char **p;
r = sd_bus_message_read_strv(message, &l);
if (r < 0)
return r;
STRV_FOREACH(p, l) {
if (!path_is_absolute(*p))
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Symlink path is not absolute: %s", *p);
}
if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
if (strv_isempty(l)) {
s->symlinks = strv_free(s->symlinks);
unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "%s=", name);
} else {
_cleanup_free_ char *joined = NULL;
r = strv_extend_strv(&s->symlinks, l, true);
if (r < 0)
return -ENOMEM;
joined = strv_join(l, " ");
if (!joined)
return -ENOMEM;
unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "%s=%s", name, joined);
}
}
return 1;
} else if (streq(name, "Listen")) {
const char *t, *a;
bool empty = true;
r = sd_bus_message_enter_container(message, 'a', "(ss)");
if (r < 0)
return r;
while ((r = sd_bus_message_read(message, "(ss)", &t, &a)) > 0) {
_cleanup_free_ SocketPort *p = NULL;
p = new(SocketPort, 1);
if (!p)
return log_oom();
*p = (SocketPort) {
.fd = -1,
.socket = s,
};
p->type = socket_port_type_from_string(t);
if (p->type < 0)
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unknown Socket type: %s", t);
if (p->type != SOCKET_SOCKET) {
if (!path_is_valid(p->path))
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid socket path: %s", t);
p->path = strdup(a);
if (!p->path)
return log_oom();
path_simplify(p->path, false);
} else if (streq(t, "Netlink")) {
r = socket_address_parse_netlink(&p->address, a);
if (r < 0)
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid netlink address: %s", a);
} else {
r = socket_address_parse(&p->address, a);
if (r < 0)
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid address: %s", a);
p->address.type = socket_address_type_from_string(t);
if (p->address.type < 0)
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid address type: %s", t);
if (socket_address_family(&p->address) != AF_LOCAL && p->address.type == SOCK_SEQPACKET)
return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Address family not supported: %s", a);
}
empty = false;
if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
LIST_APPEND(port, s->ports, TAKE_PTR(p));
unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "Listen%s=%s", t, a);
}
}
if (r < 0)
return r;
r = sd_bus_message_exit_container(message);
if (r < 0)
return r;
if (!UNIT_WRITE_FLAGS_NOOP(flags) && empty) {
socket_free_ports(s);
unit_write_settingf(u, flags|UNIT_ESCAPE_SPECIFIERS, name, "ListenStream=");
}
return 1;
}
return 0;
}
int bus_socket_set_property(
Unit *u,
const char *name,
sd_bus_message *message,
UnitWriteFlags flags,
sd_bus_error *error) {
Socket *s = SOCKET(u);
int r;
assert(s);
assert(name);
assert(message);
assert(s);
assert(name);
assert(message);
r = bus_cgroup_set_property(u, &s->cgroup_context, name, message, flags, error);
if (r != 0)
return r;
if (u->transient && u->load_state == UNIT_STUB) {
/* This is a transient unit, let's load a little more */
r = bus_socket_set_transient_property(s, name, message, flags, error);
if (r != 0)
return r;
r = bus_exec_context_set_transient_property(u, &s->exec_context, name, message, flags, error);
if (r != 0)
return r;
r = bus_kill_context_set_transient_property(u, &s->kill_context, name, message, flags, error);
if (r != 0)
return r;
}
return 0;
}
int bus_socket_commit_properties(Unit *u) {
assert(u);
unit_invalidate_cgroup_members_masks(u);
unit_realize_cgroup(u);
return 0;
}
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