int virSystemdCanHybridSleep(bool *result)
{
return virSystemdPMSupportTarget("CanHybridSleep", result);
}
int virSystemdCanSuspend(bool *result)
{
return virSystemdPMSupportTarget("CanSuspend", result);
}
int virSystemdCanHibernate(bool *result)
{
return virSystemdPMSupportTarget("CanHibernate", result);
}
void
virSystemdNotifyStartup(void)
{
#ifdef HAVE_SYS_UN_H
const char *path;
const char *msg = "READY=1";
int fd;
struct sockaddr_un un = {
.sun_family = AF_UNIX,
};
struct iovec iov = {
.iov_base = (char *)msg,
.iov_len = strlen(msg),
};
struct msghdr mh = {
.msg_name = &un,
.msg_iov = &iov,
.msg_iovlen = 1,
};
if (!(path = virGetEnvBlockSUID("NOTIFY_SOCKET"))) {
VIR_DEBUG("Skipping systemd notify, not requested");
return;
}
/* NB sun_path field is *not* NUL-terminated, hence >, not >= */
if (strlen(path) > sizeof(un.sun_path)) {
VIR_WARN("Systemd notify socket path '%s' too long", path);
return;
}
memcpy(un.sun_path, path, strlen(path));
if (un.sun_path[0] == '@')
un.sun_path[0] = '\0';
mh.msg_namelen = offsetof(struct sockaddr_un, sun_path) + strlen(path);
fd = socket(AF_UNIX, SOCK_DGRAM, 0);
if (fd < 0) {
VIR_WARN("Unable to create socket FD");
return;
}
if (sendmsg(fd, &mh, MSG_NOSIGNAL) < 0)
VIR_WARN("Failed to notify systemd");
VIR_FORCE_CLOSE(fd);
#endif /* HAVE_SYS_UN_H */
}
static int
virSystemdPMSupportTarget(const char *methodName, bool *result)
{
int ret;
DBusConnection *conn;
DBusMessage *message = NULL;
char *response;
ret = virDBusIsServiceEnabled("org.freedesktop.login1");
if (ret < 0)
return ret;
if ((ret = virDBusIsServiceRegistered("org.freedesktop.login1")) < 0)
return ret;
if (!(conn = virDBusGetSystemBus()))
return -1;
ret = -1;
if (virDBusCallMethod(conn,
&message,
NULL,
"org.freedesktop.login1",
"/org/freedesktop/login1",
"org.freedesktop.login1.Manager",
methodName,
NULL) < 0)
return ret;
if ((ret = virDBusMessageDecode(message, "s", &response)) < 0)
goto cleanup;
*result = STREQ("yes", response) || STREQ("challenge", response);
ret = 0;
cleanup:
virDBusMessageUnref(message);
VIR_FREE(response);
return ret;
}
int virSystemdCanSuspend(bool *result)
{
return virSystemdPMSupportTarget("CanSuspend", result);
}
int virSystemdCanHibernate(bool *result)
{
return virSystemdPMSupportTarget("CanHibernate", result);
}
int virSystemdCanHybridSleep(bool *result)
{
return virSystemdPMSupportTarget("CanHybridSleep", result);
}