libvirt/src/util/virsecret.c

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/*
* virsecret.c: secret utility functions
*
* Copyright (C) 2016 Red Hat, Inc.
*
* This library 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.
*
* This library 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 this library. If not, see
* <http://www.gnu.org/licenses/>.
*
*/
#include <config.h>
#include "viralloc.h"
#include "virerror.h"
#include "virlog.h"
#include "virsecret.h"
#include "virstring.h"
#include "viruuid.h"
#define VIR_FROM_THIS VIR_FROM_NONE
VIR_LOG_INIT("util.secret");
VIR_ENUM_IMPL(virSecretUsage, VIR_SECRET_USAGE_TYPE_LAST,
"none", "volume", "ceph", "iscsi", "tls")
void
virSecretLookupDefClear(virSecretLookupTypeDefPtr def)
{
if (def->type == VIR_SECRET_LOOKUP_TYPE_USAGE)
VIR_FREE(def->u.usage);
else if (def->type == VIR_SECRET_LOOKUP_TYPE_UUID)
memset(&def->u.uuid, 0, VIR_UUID_BUFLEN);
}
int
virSecretLookupDefCopy(virSecretLookupTypeDefPtr dst,
const virSecretLookupTypeDef *src)
{
dst->type = src->type;
if (dst->type == VIR_SECRET_LOOKUP_TYPE_UUID) {
memcpy(dst->u.uuid, src->u.uuid, VIR_UUID_BUFLEN);
} else if (dst->type == VIR_SECRET_LOOKUP_TYPE_USAGE) {
if (VIR_STRDUP(dst->u.usage, src->u.usage) < 0)
return -1;
}
return 0;
}
int
virSecretLookupParseSecret(xmlNodePtr secretnode,
virSecretLookupTypeDefPtr def)
{
char *uuid;
char *usage;
int ret = -1;
uuid = virXMLPropString(secretnode, "uuid");
usage = virXMLPropString(secretnode, "usage");
if (uuid == NULL && usage == NULL) {
virReportError(VIR_ERR_XML_ERROR, "%s",
_("missing secret uuid or usage attribute"));
goto cleanup;
}
if (uuid && usage) {
virReportError(VIR_ERR_XML_ERROR, "%s",
_("either secret uuid or usage expected"));
goto cleanup;
}
if (uuid) {
if (virUUIDParse(uuid, def->u.uuid) < 0) {
virReportError(VIR_ERR_XML_ERROR,
_("invalid secret uuid '%s'"), uuid);
goto cleanup;
}
def->type = VIR_SECRET_LOOKUP_TYPE_UUID;
} else {
def->u.usage = usage;
usage = NULL;
def->type = VIR_SECRET_LOOKUP_TYPE_USAGE;
}
ret = 0;
cleanup:
VIR_FREE(uuid);
VIR_FREE(usage);
return ret;
}
void
virSecretLookupFormatSecret(virBufferPtr buf,
const char *secrettype,
virSecretLookupTypeDefPtr def)
{
char uuidstr[VIR_UUID_STRING_BUFLEN];
if (secrettype)
virBufferAsprintf(buf, "<secret type='%s'", secrettype);
else
virBufferAddLit(buf, "<secret");
if (def->type == VIR_SECRET_LOOKUP_TYPE_UUID) {
virUUIDFormat(def->u.uuid, uuidstr);
virBufferAsprintf(buf, " uuid='%s'/>\n", uuidstr);
} else if (def->type == VIR_SECRET_LOOKUP_TYPE_USAGE) {
virBufferEscapeString(buf, " usage='%s'/>\n", def->u.usage);
} else {
virBufferAddLit(buf, "/>\n");
}
}