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/*
* Copyright (C) 2009-2011 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/>.
*
* Authors:
* Michal Privoznik <mprivozn@redhat.com>
* Daniel P. Berrange <berrange@redhat.com>
*/
#include <config.h>
#include "netdev_bandwidth_conf.h"
#include "virterror_internal.h"
#include "util.h"
#include "memory.h"
#define VIR_FROM_THIS VIR_FROM_NONE
static int
virNetDevBandwidthParseRate(xmlNodePtr node, virNetDevBandwidthRatePtr rate)
{
int ret = -1;
char *average = NULL;
char *peak = NULL;
char *burst = NULL;
if (!node || !rate) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("invalid argument supplied"));
return -1;
}
average = virXMLPropString(node, "average");
peak = virXMLPropString(node, "peak");
burst = virXMLPropString(node, "burst");
if (average) {
if (virStrToLong_ull(average, NULL, 10, &rate->average) < 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("could not convert %s"),
average);
goto cleanup;
}
} else {
virReportError(VIR_ERR_XML_DETAIL, "%s",
_("Missing mandatory average attribute"));
goto cleanup;
}
if (peak && virStrToLong_ull(peak, NULL, 10, &rate->peak) < 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("could not convert %s"),
peak);
goto cleanup;
}
if (burst && virStrToLong_ull(burst, NULL, 10, &rate->burst) < 0) {
virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
_("could not convert %s"),
burst);
goto cleanup;
}
ret = 0;
cleanup:
VIR_FREE(average);
VIR_FREE(peak);
VIR_FREE(burst);
return ret;
}
/**
* virNetDevBandwidthParse:
* @node: XML node
*
* Parse bandwidth XML and return pointer to structure
*
* Returns !NULL on success, NULL on error.
*/
virNetDevBandwidthPtr
virNetDevBandwidthParse(xmlNodePtr node)
{
virNetDevBandwidthPtr def = NULL;
xmlNodePtr cur = node->children;
xmlNodePtr in = NULL, out = NULL;
if (VIR_ALLOC(def) < 0) {
virReportOOMError();
return NULL;
}
if (!node || !xmlStrEqual(node->name, BAD_CAST "bandwidth")) {
virReportError(VIR_ERR_INVALID_ARG, "%s",
_("invalid argument supplied"));
goto error;
}
while (cur) {
if (cur->type == XML_ELEMENT_NODE) {
if (xmlStrEqual(cur->name, BAD_CAST "inbound")) {
if (in) {
virReportError(VIR_ERR_XML_DETAIL, "%s",
_("Only one child <inbound> "
"element allowed"));
goto error;
}
in = cur;
} else if (xmlStrEqual(cur->name, BAD_CAST "outbound")) {
if (out) {
virReportError(VIR_ERR_XML_DETAIL, "%s",
_("Only one child <outbound> "
"element allowed"));
goto error;
}
out = cur;
}
/* Silently ignore unknown elements */
}
cur = cur->next;
}
if (in) {
if (VIR_ALLOC(def->in) < 0) {
virReportOOMError();
goto error;
}
if (virNetDevBandwidthParseRate(in, def->in) < 0) {
/* helper reported error for us */
goto error;
}
}
if (out) {
if (VIR_ALLOC(def->out) < 0) {
virReportOOMError();
goto error;
}
if (virNetDevBandwidthParseRate(out, def->out) < 0) {
/* helper reported error for us */
goto error;
}
}
return def;
error:
virNetDevBandwidthFree(def);
return NULL;
}
static int
virNetDevBandwidthRateFormat(virNetDevBandwidthRatePtr def,
virBufferPtr buf,
const char *elem_name)
{
if (!buf || !elem_name)
return -1;
if (!def)
return 0;
if (def->average) {
virBufferAsprintf(buf, " <%s average='%llu'", elem_name,
def->average);
if (def->peak)
virBufferAsprintf(buf, " peak='%llu'", def->peak);
if (def->burst)
virBufferAsprintf(buf, " burst='%llu'", def->burst);
virBufferAddLit(buf, "/>\n");
}
return 0;
}
/**
* virNetDevBandwidthDefFormat:
* @def: Data source
* @buf: Buffer to print to
*
* Formats bandwidth and prepend each line with @indent.
* @buf may use auto-indentation.
*
* Returns 0 on success, else -1.
*/
int
virNetDevBandwidthFormat(virNetDevBandwidthPtr def, virBufferPtr buf)
{
int ret = -1;
if (!buf)
goto cleanup;
if (!def) {
ret = 0;
goto cleanup;
}
virBufferAddLit(buf, "<bandwidth>\n");
if (virNetDevBandwidthRateFormat(def->in, buf, "inbound") < 0 ||
virNetDevBandwidthRateFormat(def->out, buf, "outbound") < 0)
goto cleanup;
virBufferAddLit(buf, "</bandwidth>\n");
ret = 0;
cleanup:
return ret;
}
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