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nwfilter: remove unneeded cleanup labels

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Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This commit is contained in:
Daniel Henrique Barboza 2019-10-21 15:18:53 -03:00 committed by Ján Tomko
parent abd2899d73
commit 7868643275
1 changed files with 56 additions and 76 deletions
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132
src/nwfilter/nwfilter_ebiptables_driver.c
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@ -364,13 +364,12 @@ ebtablesHandleEthHdr(virFirewallPtr fw,
{
char macaddr[VIR_MAC_STRING_BUFLEN];
char macmask[VIR_MAC_STRING_BUFLEN];
int ret = -1;
if (HAS_ENTRY_ITEM(&ethHdr->dataSrcMACAddr)) {
if (printDataType(vars,
macaddr, sizeof(macaddr),
&ethHdr->dataSrcMACAddr) < 0)
goto cleanup;
return -1;
virFirewallRuleAddArgList(fw, fwrule,
reverse ? "-d" : "-s",
@ -382,7 +381,7 @@ ebtablesHandleEthHdr(virFirewallPtr fw,
if (printDataType(vars,
macmask, sizeof(macmask),
&ethHdr->dataSrcMACMask) < 0)
goto cleanup;
return -1;
virFirewallRuleAddArgFormat(fw, fwrule,
"%s/%s", macaddr, macmask);
@ -395,7 +394,7 @@ ebtablesHandleEthHdr(virFirewallPtr fw,
if (printDataType(vars,
macaddr, sizeof(macaddr),
&ethHdr->dataDstMACAddr) < 0)
goto cleanup;
return -1;
virFirewallRuleAddArgList(fw, fwrule,
reverse ? "-s" : "-d",
@ -407,7 +406,7 @@ ebtablesHandleEthHdr(virFirewallPtr fw,
if (printDataType(vars,
macmask, sizeof(macmask),
&ethHdr->dataDstMACMask) < 0)
goto cleanup;
return -1;
virFirewallRuleAddArgFormat(fw, fwrule,
"%s/%s", macaddr, macmask);
@ -416,9 +415,7 @@ ebtablesHandleEthHdr(virFirewallPtr fw,
}
}
ret = 0;
cleanup:
return ret;
return 0;
}
@ -786,7 +783,6 @@ iptablesHandleSrcMacAddr(virFirewallPtr fw,
bool *srcmacskipped)
{
char macaddr[VIR_MAC_STRING_BUFLEN];
int ret = -1;
*srcmacskipped = false;
@ -799,7 +795,7 @@ iptablesHandleSrcMacAddr(virFirewallPtr fw,
if (printDataType(vars,
macaddr, sizeof(macaddr),
srcMacAddr) < 0)
goto cleanup;
return -1;
virFirewallRuleAddArgList(fw, fwrule,
"-m", "mac",
@ -812,9 +808,7 @@ iptablesHandleSrcMacAddr(virFirewallPtr fw,
NULL);
}
ret = 0;
cleanup:
return ret;
return 0;
}
@ -834,7 +828,6 @@ iptablesHandleIPHdr(virFirewallPtr fw,
const char *dst = "--destination";
const char *srcrange = "--src-range";
const char *dstrange = "--dst-range";
int ret = -1;
if (directionIn) {
src = "--destination";
@ -847,7 +840,7 @@ iptablesHandleIPHdr(virFirewallPtr fw,
if (printDataType(vars,
ipaddr, sizeof(ipaddr),
&ipHdr->dataSrcIPAddr) < 0)
goto cleanup;
return -1;
if (ENTRY_WANT_NEG_SIGN(&ipHdr->dataSrcIPAddr))
virFirewallRuleAddArg(fw, fwrule, "!");
@ -858,7 +851,7 @@ iptablesHandleIPHdr(virFirewallPtr fw,
if (printDataType(vars,
number, sizeof(number),
&ipHdr->dataSrcIPMask) < 0)
goto cleanup;
return -1;
virFirewallRuleAddArgFormat(fw, fwrule,
"%s/%s", ipaddr, number);
@ -869,7 +862,7 @@ iptablesHandleIPHdr(virFirewallPtr fw,
if (printDataType(vars,
ipaddr, sizeof(ipaddr),
&ipHdr->dataSrcIPFrom) < 0)
goto cleanup;
return -1;
virFirewallRuleAddArgList(fw, fwrule,
"-m", "iprange",
@ -883,7 +876,7 @@ iptablesHandleIPHdr(virFirewallPtr fw,
if (printDataType(vars,
ipaddralt, sizeof(ipaddralt),
&ipHdr->dataSrcIPTo) < 0)
goto cleanup;
return -1;
virFirewallRuleAddArgFormat(fw, fwrule,
"%s-%s", ipaddr, ipaddralt);
@ -896,7 +889,7 @@ iptablesHandleIPHdr(virFirewallPtr fw,
if (printDataType(vars,
ipaddr, sizeof(ipaddr),
&ipHdr->dataDstIPAddr) < 0)
goto cleanup;
return -1;
if (ENTRY_WANT_NEG_SIGN(&ipHdr->dataDstIPAddr))
virFirewallRuleAddArg(fw, fwrule, "!");
@ -906,7 +899,7 @@ iptablesHandleIPHdr(virFirewallPtr fw,
if (printDataType(vars,
number, sizeof(number),
&ipHdr->dataDstIPMask) < 0)
goto cleanup;
return -1;
virFirewallRuleAddArgFormat(fw, fwrule,
"%s/%s", ipaddr, number);
@ -917,7 +910,7 @@ iptablesHandleIPHdr(virFirewallPtr fw,
if (printDataType(vars,
ipaddr, sizeof(ipaddr),
&ipHdr->dataDstIPFrom) < 0)
goto cleanup;
return -1;
virFirewallRuleAddArgList(fw, fwrule,
"-m", "iprange",
@ -930,7 +923,7 @@ iptablesHandleIPHdr(virFirewallPtr fw,
if (printDataType(vars,
ipaddralt, sizeof(ipaddralt),
&ipHdr->dataDstIPTo) < 0)
goto cleanup;
return -1;
virFirewallRuleAddArgFormat(fw, fwrule,
"%s-%s", ipaddr, ipaddralt);
@ -943,7 +936,7 @@ iptablesHandleIPHdr(virFirewallPtr fw,
if (printDataType(vars,
number, sizeof(number),
&ipHdr->dataDSCP) < 0)
goto cleanup;
return -1;
virFirewallRuleAddArgList(fw, fwrule,
"-m", "dscp",
@ -964,9 +957,7 @@ iptablesHandleIPHdr(virFirewallPtr fw,
}
}
ret = 0;
cleanup:
return ret;
return 0;
}
@ -980,7 +971,6 @@ iptablesHandleIPHdrAfterStateMatch(virFirewallPtr fw,
char number[MAX(INT_BUFSIZE_BOUND(uint32_t),
INT_BUFSIZE_BOUND(int))];
char str[MAX_IPSET_NAME_LENGTH];
int ret = -1;
if (HAS_ENTRY_ITEM(&ipHdr->dataIPSet) &&
HAS_ENTRY_ITEM(&ipHdr->dataIPSetFlags)) {
@ -988,7 +978,7 @@ iptablesHandleIPHdrAfterStateMatch(virFirewallPtr fw,
if (printDataType(vars,
str, sizeof(str),
&ipHdr->dataIPSet) < 0)
goto cleanup;
return -1;
virFirewallRuleAddArgList(fw, fwrule,
"-m", "set",
@ -998,7 +988,7 @@ iptablesHandleIPHdrAfterStateMatch(virFirewallPtr fw,
if (printDataTypeDirection(vars,
str, sizeof(str),
&ipHdr->dataIPSetFlags, directionIn) < 0)
goto cleanup;
return -1;
virFirewallRuleAddArg(fw, fwrule, str);
}
@ -1008,7 +998,7 @@ iptablesHandleIPHdrAfterStateMatch(virFirewallPtr fw,
if (printDataType(vars,
number, sizeof(number),
&ipHdr->dataConnlimitAbove) < 0)
goto cleanup;
return -1;
/* place connlimit after potential -m state --state ...
since this is the most useful order */
@ -1032,9 +1022,7 @@ iptablesHandleIPHdrAfterStateMatch(virFirewallPtr fw,
NULL);
}
ret = 0;
cleanup:
return ret;
return 0;
}
@ -1178,7 +1166,6 @@ _iptablesCreateRuleInstance(virFirewallPtr fw,
bool hasICMPType = false;
virFirewallRulePtr fwrule;
size_t fwruleargs;
int ret = -1;
PRINT_IPT_ROOT_CHAIN(chain, chainPrefix, ifname);
@ -1197,14 +1184,14 @@ _iptablesCreateRuleInstance(virFirewallPtr fw,
&rule->p.tcpHdrFilter.dataSrcMACAddr,
directionIn,
&srcMacSkipped) < 0)
goto cleanup;
return -1;
if (iptablesHandleIPHdr(fw, fwrule,
vars,
&rule->p.tcpHdrFilter.ipHdr,
directionIn,
&skipRule, &skipMatch) < 0)
goto cleanup;
return -1;
if (HAS_ENTRY_ITEM(&rule->p.tcpHdrFilter.dataTCPFlags)) {
char *flags;
@ -1213,11 +1200,11 @@ _iptablesCreateRuleInstance(virFirewallPtr fw,
virFirewallRuleAddArg(fw, fwrule, "--tcp-flags");
if (!(flags = virNWFilterPrintTCPFlags(rule->p.tcpHdrFilter.dataTCPFlags.u.tcpFlags.mask)))
goto cleanup;
return -1;
virFirewallRuleAddArg(fw, fwrule, flags);
VIR_FREE(flags);
if (!(flags = virNWFilterPrintTCPFlags(rule->p.tcpHdrFilter.dataTCPFlags.u.tcpFlags.flags)))
goto cleanup;
return -1;
virFirewallRuleAddArg(fw, fwrule, flags);
VIR_FREE(flags);
}
@ -1226,13 +1213,13 @@ _iptablesCreateRuleInstance(virFirewallPtr fw,
vars,
&rule->p.tcpHdrFilter.portData,
directionIn) < 0)
goto cleanup;
return -1;
if (HAS_ENTRY_ITEM(&rule->p.tcpHdrFilter.dataTCPOption)) {
if (printDataType(vars,
number, sizeof(number),
&rule->p.tcpHdrFilter.dataTCPOption) < 0)
goto cleanup;
return -1;
if (ENTRY_WANT_NEG_SIGN(&rule->p.tcpHdrFilter.dataTCPOption))
virFirewallRuleAddArg(fw, fwrule, "!");
@ -1256,20 +1243,20 @@ _iptablesCreateRuleInstance(virFirewallPtr fw,
&rule->p.udpHdrFilter.dataSrcMACAddr,
directionIn,
&srcMacSkipped) < 0)
goto cleanup;
return -1;
if (iptablesHandleIPHdr(fw, fwrule,
vars,
&rule->p.udpHdrFilter.ipHdr,
directionIn,
&skipRule, &skipMatch) < 0)
goto cleanup;
return -1;
if (iptablesHandlePortData(fw, fwrule,
vars,
&rule->p.udpHdrFilter.portData,
directionIn) < 0)
goto cleanup;
return -1;
break;
case VIR_NWFILTER_RULE_PROTOCOL_UDPLITE:
@ -1286,14 +1273,14 @@ _iptablesCreateRuleInstance(virFirewallPtr fw,
&rule->p.udpliteHdrFilter.dataSrcMACAddr,
directionIn,
&srcMacSkipped) < 0)
goto cleanup;
return -1;
if (iptablesHandleIPHdr(fw, fwrule,
vars,
&rule->p.udpliteHdrFilter.ipHdr,
directionIn,
&skipRule, &skipMatch) < 0)
goto cleanup;
return -1;
break;
@ -1311,14 +1298,14 @@ _iptablesCreateRuleInstance(virFirewallPtr fw,
&rule->p.espHdrFilter.dataSrcMACAddr,
directionIn,
&srcMacSkipped) < 0)
goto cleanup;
return -1;
if (iptablesHandleIPHdr(fw, fwrule,
vars,
&rule->p.espHdrFilter.ipHdr,
directionIn,
&skipRule, &skipMatch) < 0)
goto cleanup;
return -1;
break;
@ -1336,14 +1323,14 @@ _iptablesCreateRuleInstance(virFirewallPtr fw,
&rule->p.ahHdrFilter.dataSrcMACAddr,
directionIn,
&srcMacSkipped) < 0)
goto cleanup;
return -1;
if (iptablesHandleIPHdr(fw, fwrule,
vars,
&rule->p.ahHdrFilter.ipHdr,
directionIn,
&skipRule, &skipMatch) < 0)
goto cleanup;
return -1;
break;
@ -1361,20 +1348,20 @@ _iptablesCreateRuleInstance(virFirewallPtr fw,
&rule->p.sctpHdrFilter.dataSrcMACAddr,
directionIn,
&srcMacSkipped) < 0)
goto cleanup;
return -1;
if (iptablesHandleIPHdr(fw, fwrule,
vars,
&rule->p.sctpHdrFilter.ipHdr,
directionIn,
&skipRule, &skipMatch) < 0)
goto cleanup;
return -1;
if (iptablesHandlePortData(fw, fwrule,
vars,
&rule->p.sctpHdrFilter.portData,
directionIn) < 0)
goto cleanup;
return -1;
break;
case VIR_NWFILTER_RULE_PROTOCOL_ICMP:
@ -1397,14 +1384,14 @@ _iptablesCreateRuleInstance(virFirewallPtr fw,
&rule->p.icmpHdrFilter.dataSrcMACAddr,
directionIn,
&srcMacSkipped) < 0)
goto cleanup;
return -1;
if (iptablesHandleIPHdr(fw, fwrule,
vars,
&rule->p.icmpHdrFilter.ipHdr,
directionIn,
&skipRule, &skipMatch) < 0)
goto cleanup;
return -1;
if (HAS_ENTRY_ITEM(&rule->p.icmpHdrFilter.dataICMPType)) {
const char *parm;
@ -1413,8 +1400,7 @@ _iptablesCreateRuleInstance(virFirewallPtr fw,
if (maySkipICMP) {
virFirewallRemoveRule(fw, fwrule);
ret = 0;
goto cleanup;
return 0;
}
if (rule->prtclType == VIR_NWFILTER_RULE_PROTOCOL_ICMP)
@ -1425,7 +1411,7 @@ _iptablesCreateRuleInstance(virFirewallPtr fw,
if (printDataType(vars,
number, sizeof(number),
&rule->p.icmpHdrFilter.dataICMPType) < 0)
goto cleanup;
return -1;
if (ENTRY_WANT_NEG_SIGN(&rule->p.icmpHdrFilter.dataICMPType))
virFirewallRuleAddArg(fw, fwrule, "!");
@ -1435,7 +1421,7 @@ _iptablesCreateRuleInstance(virFirewallPtr fw,
if (printDataType(vars,
numberalt, sizeof(numberalt),
&rule->p.icmpHdrFilter.dataICMPCode) < 0)
goto cleanup;
return -1;
virFirewallRuleAddArgFormat(fw, fwrule,
"%s/%s", number, numberalt);
@ -1458,14 +1444,14 @@ _iptablesCreateRuleInstance(virFirewallPtr fw,
&rule->p.igmpHdrFilter.dataSrcMACAddr,
directionIn,
&srcMacSkipped) < 0)
goto cleanup;
return -1;
if (iptablesHandleIPHdr(fw, fwrule,
vars,
&rule->p.igmpHdrFilter.ipHdr,
directionIn,
&skipRule, &skipMatch) < 0)
goto cleanup;
return -1;
break;
@ -1483,14 +1469,14 @@ _iptablesCreateRuleInstance(virFirewallPtr fw,
&rule->p.allHdrFilter.dataSrcMACAddr,
directionIn,
&srcMacSkipped) < 0)
goto cleanup;
return -1;
if (iptablesHandleIPHdr(fw, fwrule,
vars,
&rule->p.allHdrFilter.ipHdr,
directionIn,
&skipRule, &skipMatch) < 0)
goto cleanup;
return -1;
break;
@ -1498,7 +1484,7 @@ _iptablesCreateRuleInstance(virFirewallPtr fw,
virReportError(VIR_ERR_INTERNAL_ERROR,
_("Unexpected protocol %d"),
rule->prtclType);
goto cleanup;
return -1;
}
if ((srcMacSkipped &&
@ -1537,14 +1523,12 @@ _iptablesCreateRuleInstance(virFirewallPtr fw,
vars,
&rule->p.allHdrFilter.ipHdr,
directionIn) < 0)
goto cleanup;
return -1;
virFirewallRuleAddArgList(fw, fwrule,
"-j", target, NULL);
ret = 0;
cleanup:
return ret;
return 0;
}
@ -2475,8 +2459,6 @@ ebiptablesCreateRuleInstance(virFirewallPtr fw,
const char *ifname,
virNWFilterVarCombIterPtr vars)
{
int ret = -1;
if (virNWFilterRuleIsProtocolEthernet(rule)) {
if (rule->tt == VIR_NWFILTER_RULE_DIRECTION_OUT ||
rule->tt == VIR_NWFILTER_RULE_DIRECTION_INOUT) {
@ -2487,7 +2469,7 @@ ebiptablesCreateRuleInstance(virFirewallPtr fw,
ifname,
vars,
rule->tt == VIR_NWFILTER_RULE_DIRECTION_INOUT) < 0)
goto cleanup;
return -1;
}
if (rule->tt == VIR_NWFILTER_RULE_DIRECTION_IN ||
@ -2499,7 +2481,7 @@ ebiptablesCreateRuleInstance(virFirewallPtr fw,
ifname,
vars,
false) < 0)
goto cleanup;
return -1;
}
} else {
virFirewallLayer layer;
@ -2510,7 +2492,7 @@ ebiptablesCreateRuleInstance(virFirewallPtr fw,
} else {
virReportError(VIR_ERR_OPERATION_FAILED,
"%s", _("unexpected protocol type"));
goto cleanup;
return -1;
}
if (iptablesCreateRuleInstance(fw,
@ -2518,12 +2500,10 @@ ebiptablesCreateRuleInstance(virFirewallPtr fw,
rule,
ifname,
vars) < 0)
goto cleanup;
return -1;
}
ret = 0;
cleanup:
return ret;
return 0;
}