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/*
* Copyright (C) 2011
* Author Roger Pau Monne <roger.pau@entel.upc.edu>
*
* This program 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; version 2.1 only. with the special
* exception on linking described in file LICENSE.
*
* This program 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.
*/
#include "libxl_osdeps.h" /* must come before any other headers */
#include "libxl_internal.h"
int libxl__try_phy_backend(mode_t st_mode)
{
if (S_ISREG(st_mode) || S_ISBLK(st_mode))
return 1;
return 0;
}
char *libxl__devid_to_localdev(libxl__gc *gc, int devid)
{
/* TODO */
return NULL;
}
/* Hotplug scripts caller functions */
static int libxl__hotplug(libxl__gc *gc, libxl__device *dev, char ***args,
libxl__device_action action)
{
char *be_path = libxl__device_backend_path(gc, dev);
char *script;
int nr = 0, rc = 0, arraysize = 4;
script = libxl__xs_read(gc, XBT_NULL,
GCSPRINTF("%s/%s", be_path, "script"));
if (!script) {
LOGEVD(ERROR, errno, dev->domid,
"unable to read script from %s", be_path);
rc = ERROR_FAIL;
goto out;
}
GCNEW_ARRAY(*args, arraysize);
(*args)[nr++] = script;
(*args)[nr++] = be_path;
(*args)[nr++] = GCSPRINTF("%d", action == LIBXL__DEVICE_ACTION_ADD ?
XenbusStateInitWait : XenbusStateClosed);
(*args)[nr++] = NULL;
assert(nr == arraysize);
out:
return rc;
}
int libxl__get_hotplug_script_info(libxl__gc *gc, libxl__device *dev,
char ***args, char ***env,
libxl__device_action action,
int num_exec)
{
int rc;
switch (dev->backend_kind) {
case LIBXL__DEVICE_KIND_VBD:
if (num_exec != 0) {
LOGD(DEBUG, dev->domid,
"num_exec %d, not running hotplug scripts", num_exec);
rc = 0;
goto out;
}
rc = libxl__hotplug(gc, dev, args, action);
if (!rc) rc = 1;
break;
case LIBXL__DEVICE_KIND_VIF:
/*
* If domain has a stubdom we don't have to execute hotplug scripts
* for emulated interfaces
*
* NetBSD let QEMU call a script to plug emulated nic, so
* only test if num_exec == 0 in that case.
*/
if ((num_exec != 0) ||
(libxl_get_stubdom_id(CTX, dev->domid) && num_exec)) {
LOGD(DEBUG, dev->domid,
"num_exec %d, not running hotplug scripts", num_exec);
rc = 0;
goto out;
}
rc = libxl__hotplug(gc, dev, args, action);
if (!rc) rc = 1;
break;
default:
/* If no need to execute any hotplug scripts,
* call the callback manually
*/
rc = 0;
break;
}
out:
return rc;
}
int libxl__pci_numdevs(libxl__gc *gc)
{
return ERROR_NI;
}
int libxl__pci_topology_init(libxl__gc *gc,
physdev_pci_device_t *devs,
int num_devs)
{
return ERROR_NI;
}
int libxl__local_dm_preexec_restrict(libxl__gc *gc)
{
return 0;
}
int libxl__setresuid(uid_t ruid, uid_t euid, uid_t suid)
{
assert(!"setresuid is not available on NetBSD, and dm restrction is not supported, so this code path should not have been reached");
return -1;
}
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