src/core/dbus-kill.c

   1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
   2
   3 /***
   4   This file is part of systemd.
   5
   6   Copyright 2012 Lennart Poettering
   7
   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.
  12
  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.
  17
  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/>.
  20 ***/
  21
  22 #include "kill.h"
  23 #include "dbus-kill.h"
  24 #include "bus-util.h"
  25
  26 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_kill_mode, kill_mode, KillMode);
  27
  28 const sd_bus_vtable bus_kill_vtable[] = {
  29         SD_BUS_VTABLE_START(0),
  30         SD_BUS_PROPERTY("KillMode", "s", property_get_kill_mode, offsetof(KillContext, kill_mode), SD_BUS_VTABLE_PROPERTY_CONST),
  31         SD_BUS_PROPERTY("KillSignal", "i", bus_property_get_int, offsetof(KillContext, kill_signal), SD_BUS_VTABLE_PROPERTY_CONST),
  32         SD_BUS_PROPERTY("SendSIGKILL", "b", bus_property_get_bool, offsetof(KillContext, send_sigkill), SD_BUS_VTABLE_PROPERTY_CONST),
  33         SD_BUS_PROPERTY("SendSIGHUP", "b", bus_property_get_bool,  offsetof(KillContext, send_sighup), SD_BUS_VTABLE_PROPERTY_CONST),
  34         SD_BUS_VTABLE_END
  35 };
  36
  37 int bus_kill_context_set_transient_property(
  38                 Unit *u,
  39                 KillContext *c,
  40                 const char *name,
  41                 sd_bus_message *message,
  42                 UnitSetPropertiesMode mode,
  43                 sd_bus_error *error) {
  44
  45         int r;
  46
  47         assert(u);
  48         assert(c);
  49         assert(name);
  50         assert(message);
  51
  52         if (streq(name, "KillMode")) {
  53                 const char *m;
  54                 KillMode k;
  55
  56                 r = sd_bus_message_read(message, "s", &m);
  57                 if (r < 0)
  58                         return r;
  59
  60                 k = kill_mode_from_string(m);
  61                 if (k < 0)
  62                         return -EINVAL;
  63
  64                 if (mode != UNIT_CHECK) {
  65                         c->kill_mode = k;
  66
  67                         unit_write_drop_in_private_format(u, mode, name, "KillMode=%s\n", kill_mode_to_string(k));
  68                 }
  69
  70                 return 1;
  71
  72         } else if (streq(name, "KillSignal")) {
  73                 int sig;
  74
  75                 r = sd_bus_message_read(message, "i", &sig);
  76                 if (r < 0)
  77                         return r;
  78
  79                 if (sig <= 0 || sig >= _NSIG)
  80                         return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Signal %i out of range", sig);
  81
  82                 if (mode != UNIT_CHECK) {
  83                         c->kill_signal = sig;
  84
  85                         unit_write_drop_in_private_format(u, mode, name, "KillSignal=%s\n", signal_to_string(sig));
  86                 }
  87
  88                 return 1;
  89
  90         } else if (streq(name, "SendSIGHUP")) {
  91                 int b;
  92
  93                 r = sd_bus_message_read(message, "b", &b);
  94                 if (r < 0)
  95                         return r;
  96
  97                 if (mode != UNIT_CHECK) {
  98                         c->send_sighup = b;
  99
 100                         unit_write_drop_in_private_format(u, mode, name, "SendSIGHUP=%s\n", yes_no(b));
 101                 }
 102
 103                 return 1;
 104
 105         } else if (streq(name, "SendSIGKILL")) {
 106                 int b;
 107
 108                 r = sd_bus_message_read(message, "b", &b);
 109                 if (r < 0)
 110                         return r;
 111
 112                 if (mode != UNIT_CHECK) {
 113                         c->send_sigkill = b;
 114
 115                         unit_write_drop_in_private_format(u, mode, name, "SendSIGKILL=%s\n", yes_no(b));
 116                 }
 117
 118                 return 1;
 119
 120         }
 121
 122         return 0;
 123 }