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conf: move UDP chardev source parsing to separate function

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The extra check whether (connect|bind)(Host|Service) was set is
required because for UDP chardev there can be two source elements.
Without the check there could be a memory leak.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
This commit is contained in:
Pavel Hrdina 2017-08-18 19:05:20 +02:00
parent 40b0f40b54
commit 34e0eb7dc4
1 changed files with 25 additions and 31 deletions
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56
src/conf/domain_conf.c
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@ -10973,6 +10973,29 @@ virDomainChrSourceDefParseTCP(virDomainChrSourceDefPtr def,
}
static int
virDomainChrSourceDefParseUDP(virDomainChrSourceDefPtr def,
xmlNodePtr source)
{
int mode;
if ((mode = virDomainChrSourceDefParseMode(source)) < 0)
return -1;
if (mode == VIR_DOMAIN_CHR_SOURCE_MODE_CONNECT &&
!def->data.udp.connectHost && !def->data.udp.connectService) {
def->data.udp.connectHost = virXMLPropString(source, "host");
def->data.udp.connectService = virXMLPropString(source, "service");
} else if (mode == VIR_DOMAIN_CHR_SOURCE_MODE_BIND &&
!def->data.udp.bindHost && !def->data.udp.bindService) {
def->data.udp.bindHost = virXMLPropString(source, "host");
def->data.udp.bindService = virXMLPropString(source, "service");
}
return 0;
}
static int
virDomainChrSourceDefParseProtocol(virDomainChrSourceDefPtr def,
xmlNodePtr protocol)
@ -11036,10 +11059,6 @@ virDomainChrSourceDefParseXML(virDomainChrSourceDefPtr def,
{
int ret = -1;
int mode = VIR_DOMAIN_CHR_SOURCE_MODE_CONNECT;
char *bindHost = NULL;
char *bindService = NULL;
char *connectHost = NULL;
char *connectService = NULL;
char *path = NULL;
char *channel = NULL;
char *master = NULL;
@ -11091,19 +11110,8 @@ virDomainChrSourceDefParseXML(virDomainChrSourceDefPtr def,
break;
case VIR_DOMAIN_CHR_TYPE_UDP:
if ((mode = virDomainChrSourceDefParseMode(cur)) < 0)
if (virDomainChrSourceDefParseUDP(def, cur) < 0)
goto error;
if (mode == VIR_DOMAIN_CHR_SOURCE_MODE_CONNECT) {
if (!connectHost)
connectHost = virXMLPropString(cur, "host");
if (!connectService)
connectService = virXMLPropString(cur, "service");
} else if (mode == VIR_DOMAIN_CHR_SOURCE_MODE_BIND) {
if (!bindHost)
bindHost = virXMLPropString(cur, "host");
if (!bindService)
bindService = virXMLPropString(cur, "service");
}
break;
case VIR_DOMAIN_CHR_TYPE_TCP:
@ -11232,21 +11240,11 @@ virDomainChrSourceDefParseXML(virDomainChrSourceDefPtr def,
break;
case VIR_DOMAIN_CHR_TYPE_UDP:
if (!connectService) {
if (!def->data.udp.connectService) {
virReportError(VIR_ERR_INTERNAL_ERROR, "%s",
_("Missing source service attribute for char device"));
goto error;
}
def->data.udp.connectHost = connectHost;
connectHost = NULL;
def->data.udp.connectService = connectService;
connectService = NULL;
def->data.udp.bindHost = bindHost;
bindHost = NULL;
def->data.udp.bindService = bindService;
bindService = NULL;
break;
case VIR_DOMAIN_CHR_TYPE_UNIX:
@ -11284,10 +11282,6 @@ virDomainChrSourceDefParseXML(virDomainChrSourceDefPtr def,
ret = 0;
cleanup:
VIR_FREE(bindHost);
VIR_FREE(bindService);
VIR_FREE(connectHost);
VIR_FREE(connectService);
VIR_FREE(path);
VIR_FREE(channel);
VIR_FREE(append);