1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
2
3 #include "bus-error.h"
4 #include "bus-locator.h"
5 #include "systemctl-add-dependency.h"
6 #include "systemctl-daemon-reload.h"
7 #include "systemctl-util.h"
8 #include "systemctl.h"
9
verb_add_dependency(int argc,char * argv[],void * userdata)10 int verb_add_dependency(int argc, char *argv[], void *userdata) {
11 _cleanup_strv_free_ char **names = NULL;
12 _cleanup_free_ char *target = NULL;
13 const char *verb = argv[0];
14 UnitFileChange *changes = NULL;
15 size_t n_changes = 0;
16 UnitDependency dep;
17 int r;
18
19 if (!argv[1])
20 return 0;
21
22 r = unit_name_mangle_with_suffix(argv[1], "as target",
23 arg_quiet ? 0 : UNIT_NAME_MANGLE_WARN,
24 ".target", &target);
25 if (r < 0)
26 return log_error_errno(r, "Failed to mangle unit name: %m");
27
28 r = mangle_names("as dependency", strv_skip(argv, 2), &names);
29 if (r < 0)
30 return r;
31
32 if (streq(verb, "add-wants"))
33 dep = UNIT_WANTS;
34 else if (streq(verb, "add-requires"))
35 dep = UNIT_REQUIRES;
36 else
37 assert_not_reached();
38
39 if (install_client_side()) {
40 r = unit_file_add_dependency(arg_scope, unit_file_flags_from_args(), arg_root, names, target, dep, &changes, &n_changes);
41 unit_file_dump_changes(r, "add dependency on", changes, n_changes, arg_quiet);
42
43 if (r > 0)
44 r = 0;
45 } else {
46 _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL, *m = NULL;
47 _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
48 sd_bus *bus;
49
50 r = acquire_bus(BUS_MANAGER, &bus);
51 if (r < 0)
52 return r;
53
54 polkit_agent_open_maybe();
55
56 r = bus_message_new_method_call(bus, &m, bus_systemd_mgr, "AddDependencyUnitFiles");
57 if (r < 0)
58 return bus_log_create_error(r);
59
60 r = sd_bus_message_append_strv(m, names);
61 if (r < 0)
62 return bus_log_create_error(r);
63
64 r = sd_bus_message_append(m, "ssbb", target, unit_dependency_to_string(dep), arg_runtime, arg_force);
65 if (r < 0)
66 return bus_log_create_error(r);
67
68 r = sd_bus_call(bus, m, 0, &error, &reply);
69 if (r < 0)
70 return log_error_errno(r, "Failed to add dependency: %s", bus_error_message(&error, r));
71
72 r = bus_deserialize_and_dump_unit_file_changes(reply, arg_quiet, &changes, &n_changes);
73 if (r < 0)
74 goto finish;
75
76 if (arg_no_reload) {
77 r = 0;
78 goto finish;
79 }
80
81 r = daemon_reload(ACTION_RELOAD, /* graceful= */ false);
82 if (r > 0)
83 r = 0;
84 }
85
86 finish:
87 unit_file_changes_free(changes, n_changes);
88
89 return r;
90 }
91