1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
|
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
/***
This file is part of systemd.
Copyright 2013 Lennart Poettering
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <errno.h>
#include "dbus-unit.h"
#include "dbus-common.h"
#include "dbus-cgroup.h"
#include "dbus-kill.h"
#include "selinux-access.h"
#include "dbus-scope.h"
#define BUS_SCOPE_INTERFACE \
" <interface name=\"org.freedesktop.systemd1.Scope\">\n" \
" <property name=\"TimeoutStopUSec\" type=\"t\" access=\"read\"/>\n" \
BUS_KILL_CONTEXT_INTERFACE \
BUS_CGROUP_CONTEXT_INTERFACE \
" <property name=\"Result\" type=\"s\" access=\"read\"/>\n" \
" </interface>\n"
#define INTROSPECTION \
DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \
"<node>\n" \
BUS_UNIT_INTERFACE \
BUS_SCOPE_INTERFACE \
BUS_PROPERTIES_INTERFACE \
BUS_PEER_INTERFACE \
BUS_INTROSPECTABLE_INTERFACE \
"</node>\n"
#define INTERFACES_LIST \
BUS_UNIT_INTERFACES_LIST \
"org.freedesktop.systemd1.Scope\0"
const char bus_scope_interface[] _introspect_("Scope") = BUS_SCOPE_INTERFACE;
static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_scope_append_scope_result, scope_result, ScopeResult);
static const BusProperty bus_scope_properties[] = {
{ "TimeoutStopUSec", bus_property_append_usec, "t", offsetof(Scope, timeout_stop_usec) },
{ "Result", bus_scope_append_scope_result, "s", offsetof(Scope, result) },
{}
};
DBusHandlerResult bus_scope_message_handler(Unit *u, DBusConnection *c, DBusMessage *message) {
Scope *s = SCOPE(u);
const BusBoundProperties bps[] = {
{ "org.freedesktop.systemd1.Unit", bus_unit_properties, u },
{ "org.freedesktop.systemd1.Scope", bus_scope_properties, s },
{ "org.freedesktop.systemd1.Scope", bus_cgroup_context_properties, &s->cgroup_context },
{ "org.freedesktop.systemd1.Scope", bus_kill_context_properties, &s->kill_context },
{}
};
SELINUX_UNIT_ACCESS_CHECK(u, c, message, "status");
return bus_default_message_handler(c, message, INTROSPECTION, INTERFACES_LIST, bps);
}
static int bus_scope_set_transient_properties(
Scope *s,
const char *name,
DBusMessageIter *i,
UnitSetPropertiesMode mode,
DBusError *error) {
int r;
assert(name);
assert(s);
assert(i);
if (streq(name, "PIDs")) {
DBusMessageIter sub;
if (dbus_message_iter_get_arg_type(i) != DBUS_TYPE_ARRAY ||
dbus_message_iter_get_element_type(i) != DBUS_TYPE_UINT32)
return -EINVAL;
r = set_ensure_allocated(&s->pids, trivial_hash_func, trivial_compare_func);
if (r < 0)
return r;
dbus_message_iter_recurse(i, &sub);
while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_UINT32) {
uint32_t pid;
dbus_message_iter_get_basic(&sub, &pid);
if (pid <= 1)
return -EINVAL;
r = set_put(s->pids, LONG_TO_PTR(pid));
if (r < 0 && r != -EEXIST)
return r;
dbus_message_iter_next(&sub);
}
if (set_size(s->pids) <= 0)
return -EINVAL;
return 1;
}
return 0;
}
int bus_scope_set_property(
Unit *u,
const char *name,
DBusMessageIter *i,
UnitSetPropertiesMode mode,
DBusError *error) {
Scope *s = SCOPE(u);
int r;
assert(name);
assert(u);
assert(i);
r = bus_cgroup_set_property(u, &s->cgroup_context, name, i, mode, error);
if (r != 0)
return r;
if (u->load_state == UNIT_STUB) {
/* While we are created we still accept PIDs */
r = bus_scope_set_transient_properties(s, name, i, mode, error);
if (r != 0)
return r;
}
return 0;
}
int bus_scope_commit_properties(Unit *u) {
assert(u);
unit_realize_cgroup(u);
return 0;
}
|
