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Add support for so-far missing protocols for iptables filtering

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This patch adds filtering support for the so-far missing protocols 'ah',
'esp' and 'udplite'.
This commit is contained in:
Stefan Berger 2010-03-30 10:16:40 -04:00
parent 0ec5cd0704
commit 285d38931f
3 changed files with 181 additions and 0 deletions
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79
src/conf/nwfilter_conf.c
View File

@ -83,6 +83,9 @@ VIR_ENUM_IMPL(virNWFilterRuleProtocol, VIR_NWFILTER_RULE_PROTOCOL_LAST,
"icmp",
"igmp",
"udp",
"udplite",
"esp",
"ah",
"sctp",
"all");
@ -584,6 +587,17 @@ static const struct int_map ipProtoMap[] = {
} , {
.attr = IPPROTO_UDP,
.val = "udp",
#ifdef IPPROTO_UDPLITE
} , {
.attr = IPPROTO_UDPLITE,
.val = "udplite",
#endif
} , {
.attr = IPPROTO_ESP,
.val = "esp",
} , {
.attr = IPPROTO_AH,
.val = "ah",
} , {
.attr = IPPROTO_ICMP,
.val = "icmp",
@ -948,6 +962,26 @@ static const virXMLAttr2Struct udpAttributes[] = {
}
};
static const virXMLAttr2Struct udpliteAttributes[] = {
COMMON_IP_PROPS(udpliteHdrFilter),
{
.name = NULL,
}
};
static const virXMLAttr2Struct espAttributes[] = {
COMMON_IP_PROPS(espHdrFilter),
{
.name = NULL,
}
};
static const virXMLAttr2Struct ahAttributes[] = {
COMMON_IP_PROPS(ahHdrFilter),
{
.name = NULL,
}
};
static const virXMLAttr2Struct sctpAttributes[] = {
COMMON_IP_PROPS(sctpHdrFilter),
@ -1025,6 +1059,18 @@ static const virAttributes virAttr[] = {
.id = "udp",
.att = udpAttributes,
.prtclType = VIR_NWFILTER_RULE_PROTOCOL_UDP,
}, {
.id = "udplite",
.att = udpliteAttributes,
.prtclType = VIR_NWFILTER_RULE_PROTOCOL_UDPLITE,
}, {
.id = "esp",
.att = espAttributes,
.prtclType = VIR_NWFILTER_RULE_PROTOCOL_ESP,
}, {
.id = "ah",
.att = ahAttributes,
.prtclType = VIR_NWFILTER_RULE_PROTOCOL_AH,
}, {
.id = "sctp",
.att = sctpAttributes,
@ -1494,6 +1540,39 @@ virNWFilterRuleDefFixup(virNWFilterRuleDefPtr rule)
rule->p.udpHdrFilter.portData.dataSrcPortStart);
break;
case VIR_NWFILTER_RULE_PROTOCOL_UDPLITE:
COPY_NEG_SIGN(rule->p.udpliteHdrFilter.ipHdr.dataSrcIPMask,
rule->p.udpliteHdrFilter.ipHdr.dataSrcIPAddr);
COPY_NEG_SIGN(rule->p.udpliteHdrFilter.ipHdr.dataDstIPMask,
rule->p.udpliteHdrFilter.ipHdr.dataDstIPAddr);
COPY_NEG_SIGN(rule->p.udpliteHdrFilter.ipHdr.dataSrcIPTo,
rule->p.udpliteHdrFilter.ipHdr.dataSrcIPFrom);
COPY_NEG_SIGN(rule->p.udpliteHdrFilter.ipHdr.dataDstIPTo,
rule->p.udpliteHdrFilter.ipHdr.dataDstIPFrom);
break;
case VIR_NWFILTER_RULE_PROTOCOL_ESP:
COPY_NEG_SIGN(rule->p.espHdrFilter.ipHdr.dataSrcIPMask,
rule->p.espHdrFilter.ipHdr.dataSrcIPAddr);
COPY_NEG_SIGN(rule->p.espHdrFilter.ipHdr.dataDstIPMask,
rule->p.espHdrFilter.ipHdr.dataDstIPAddr);
COPY_NEG_SIGN(rule->p.espHdrFilter.ipHdr.dataSrcIPTo,
rule->p.espHdrFilter.ipHdr.dataSrcIPFrom);
COPY_NEG_SIGN(rule->p.espHdrFilter.ipHdr.dataDstIPTo,
rule->p.espHdrFilter.ipHdr.dataDstIPFrom);
break;
case VIR_NWFILTER_RULE_PROTOCOL_AH:
COPY_NEG_SIGN(rule->p.ahHdrFilter.ipHdr.dataSrcIPMask,
rule->p.ahHdrFilter.ipHdr.dataSrcIPAddr);
COPY_NEG_SIGN(rule->p.ahHdrFilter.ipHdr.dataDstIPMask,
rule->p.ahHdrFilter.ipHdr.dataDstIPAddr);
COPY_NEG_SIGN(rule->p.ahHdrFilter.ipHdr.dataSrcIPTo,
rule->p.ahHdrFilter.ipHdr.dataSrcIPFrom);
COPY_NEG_SIGN(rule->p.ahHdrFilter.ipHdr.dataDstIPTo,
rule->p.ahHdrFilter.ipHdr.dataDstIPFrom);
break;
case VIR_NWFILTER_RULE_PROTOCOL_SCTP:
COPY_NEG_SIGN(rule->p.sctpHdrFilter.ipHdr.dataSrcIPMask,
rule->p.sctpHdrFilter.ipHdr.dataSrcIPAddr);

30
src/conf/nwfilter_conf.h
View File

@ -241,6 +241,30 @@ struct _sctpHdrFilterDef {
};
typedef struct _espHdrFilterDef espHdrFilterDef;
typedef espHdrFilterDef *espHdrFilterDefPtr;
struct _espHdrFilterDef {
nwItemDesc dataSrcMACAddr;
ipHdrDataDef ipHdr;
};
typedef struct _ahHdrFilterDef ahHdrFilterDef;
typedef ahHdrFilterDef *ahHdrFilterDefPtr;
struct _ahHdrFilterDef {
nwItemDesc dataSrcMACAddr;
ipHdrDataDef ipHdr;
};
typedef struct _udpliteHdrFilterDef udpliteHdrFilterDef;
typedef udpliteHdrFilterDef *udpliteHdrFilterDefPtr;
struct _udpliteHdrFilterDef {
nwItemDesc dataSrcMACAddr;
ipHdrDataDef ipHdr;
};
enum virNWFilterRuleActionType {
VIR_NWFILTER_RULE_ACTION_DROP = 0,
VIR_NWFILTER_RULE_ACTION_ACCEPT,
@ -273,6 +297,9 @@ enum virNWFilterRuleProtocolType {
VIR_NWFILTER_RULE_PROTOCOL_ICMP,
VIR_NWFILTER_RULE_PROTOCOL_IGMP,
VIR_NWFILTER_RULE_PROTOCOL_UDP,
VIR_NWFILTER_RULE_PROTOCOL_UDPLITE,
VIR_NWFILTER_RULE_PROTOCOL_ESP,
VIR_NWFILTER_RULE_PROTOCOL_AH,
VIR_NWFILTER_RULE_PROTOCOL_SCTP,
VIR_NWFILTER_RULE_PROTOCOL_ALL,
@ -306,6 +333,9 @@ struct _virNWFilterRuleDef {
tcpHdrFilterDef tcpHdrFilter;
icmpHdrFilterDef icmpHdrFilter;
udpHdrFilterDef udpHdrFilter;
udpliteHdrFilterDef udpliteHdrFilter;
espHdrFilterDef espHdrFilter;
ahHdrFilterDef ahHdrFilter;
allHdrFilterDef allHdrFilter;
igmpHdrFilterDef igmpHdrFilter;
sctpHdrFilterDef sctpHdrFilter;

72
src/nwfilter/nwfilter_ebiptables_driver.c
View File

@ -1089,6 +1089,75 @@ _iptablesCreateRuleInstance(virConnectPtr conn,
goto err_exit;
break;
case VIR_NWFILTER_RULE_PROTOCOL_UDPLITE:
virBufferVSprintf(&buf,
CMD_DEF_PRE IPTABLES_CMD " -%%c %s %%s",
chain);
virBufferAddLit(&buf, " -p udplite");
if (iptablesHandleSrcMacAddr(conn,
&buf,
vars,
&rule->p.udpliteHdrFilter.dataSrcMACAddr,
directionIn))
goto err_exit;
if (iptablesHandleIpHdr(conn,
&buf,
vars,
&rule->p.udpliteHdrFilter.ipHdr,
directionIn))
goto err_exit;
break;
case VIR_NWFILTER_RULE_PROTOCOL_ESP:
virBufferVSprintf(&buf,
CMD_DEF_PRE IPTABLES_CMD " -%%c %s %%s",
chain);
virBufferAddLit(&buf, " -p esp");
if (iptablesHandleSrcMacAddr(conn,
&buf,
vars,
&rule->p.espHdrFilter.dataSrcMACAddr,
directionIn))
goto err_exit;
if (iptablesHandleIpHdr(conn,
&buf,
vars,
&rule->p.espHdrFilter.ipHdr,
directionIn))
goto err_exit;
break;
case VIR_NWFILTER_RULE_PROTOCOL_AH:
virBufferVSprintf(&buf,
CMD_DEF_PRE IPTABLES_CMD " -%%c %s %%s",
chain);
virBufferAddLit(&buf, " -p ah");
if (iptablesHandleSrcMacAddr(conn,
&buf,
vars,
&rule->p.ahHdrFilter.dataSrcMACAddr,
directionIn))
goto err_exit;
if (iptablesHandleIpHdr(conn,
&buf,
vars,
&rule->p.ahHdrFilter.ipHdr,
directionIn))
goto err_exit;
break;
case VIR_NWFILTER_RULE_PROTOCOL_SCTP:
virBufferVSprintf(&buf,
CMD_DEF_PRE IPTABLES_CMD " -%%c %s %%s",
@ -1836,6 +1905,9 @@ ebiptablesCreateRuleInstance(virConnectPtr conn,
case VIR_NWFILTER_RULE_PROTOCOL_TCP:
case VIR_NWFILTER_RULE_PROTOCOL_UDP:
case VIR_NWFILTER_RULE_PROTOCOL_UDPLITE:
case VIR_NWFILTER_RULE_PROTOCOL_ESP:
case VIR_NWFILTER_RULE_PROTOCOL_AH:
case VIR_NWFILTER_RULE_PROTOCOL_SCTP:
case VIR_NWFILTER_RULE_PROTOCOL_ICMP:
case VIR_NWFILTER_RULE_PROTOCOL_IGMP: