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It basically works... at least on current controllers.

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This commit is contained in:
Adam Ierymenko
2016-08-24 15:26:18 -07:00
parent ccea3d04d6
commit 2cdda38dc4
7 changed files with 74 additions and 48 deletions
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46
node/Network.cpp
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@ -102,6 +102,7 @@ static bool _ipv6GetPayload(const uint8_t *frameData,unsigned int frameLen,unsig
// 0 == no match, -1 == match/drop, 1 == match/accept
static int _doZtFilter(
const RuntimeEnvironment *RR,
const bool noRedirect,
const NetworkConfig &nconf,
const bool inbound,
const Address &ztSource,
@ -154,15 +155,17 @@ static int _doZtFilter(
break;
case ZT_NETWORK_RULE_ACTION_TEE:
case ZT_NETWORK_RULE_ACTION_REDIRECT: {
Packet outp(Address(rules[rn].v.fwd.address),RR->identity.address(),Packet::VERB_EXT_FRAME);
outp.append(nconf.networkId);
outp.append((uint8_t)( ((rt == ZT_NETWORK_RULE_ACTION_REDIRECT) ? 0x04 : 0x02) | (inbound ? 0x08 : 0x00) ));
macDest.appendTo(outp);
macSource.appendTo(outp);
outp.append((uint16_t)etherType);
outp.append(frameData,(rules[rn].v.fwd.length != 0) ? ((frameLen < (unsigned int)rules[rn].v.fwd.length) ? frameLen : (unsigned int)rules[rn].v.fwd.length) : frameLen);
outp.compress();
RR->sw->send(outp,true);
if (!noRedirect) {
Packet outp(Address(rules[rn].v.fwd.address),RR->identity.address(),Packet::VERB_EXT_FRAME);
outp.append(nconf.networkId);
outp.append((uint8_t)( ((rt == ZT_NETWORK_RULE_ACTION_REDIRECT) ? 0x04 : 0x02) | (inbound ? 0x08 : 0x00) ));
macDest.appendTo(outp);
macSource.appendTo(outp);
outp.append((uint16_t)etherType);
outp.append(frameData,(rules[rn].v.fwd.length != 0) ? ((frameLen < (unsigned int)rules[rn].v.fwd.length) ? frameLen : (unsigned int)rules[rn].v.fwd.length) : frameLen);
outp.compress();
RR->sw->send(outp,true);
}
if (rt == ZT_NETWORK_RULE_ACTION_REDIRECT) {
return -1; // match, drop packet (we redirected it)
@ -318,6 +321,8 @@ static int _doZtFilter(
break;
case ZT_NETWORK_RULE_MATCH_CHARACTERISTICS: {
uint64_t cf = (inbound) ? ZT_RULE_PACKET_CHARACTERISTICS_INBOUND : 0ULL;
if (macDest.isMulticast()) cf |= ZT_RULE_PACKET_CHARACTERISTICS_MULTICAST;
if (macDest.isBroadcast()) cf |= ZT_RULE_PACKET_CHARACTERISTICS_BROADCAST;
if ((etherType == ZT_ETHERTYPE_IPV4)&&(frameLen >= 20)&&(frameData[9] == 0x06)) {
const unsigned int headerLen = 4 * (frameData[0] & 0xf);
cf |= (uint64_t)frameData[headerLen + 13];
@ -456,6 +461,7 @@ Network::~Network()
}
bool Network::filterOutgoingPacket(
const bool noRedirect,
const Address &ztSource,
const Address &ztDest,
const MAC &macSource,
@ -475,21 +481,23 @@ bool Network::filterOutgoingPacket(
Membership &m = _memberships[ztDest];
const unsigned int remoteTagCount = m.getAllTags(_config,remoteTagIds,remoteTagValues,ZT_MAX_NETWORK_TAGS);
switch(_doZtFilter(RR,_config,false,ztSource,ztDest,macSource,macDest,frameData,frameLen,etherType,vlanId,_config.rules,_config.ruleCount,_config.tags,_config.tagCount,remoteTagIds,remoteTagValues,remoteTagCount,relevantLocalTags,relevantLocalTagCount)) {
switch(_doZtFilter(RR,noRedirect,_config,false,ztSource,ztDest,macSource,macDest,frameData,frameLen,etherType,vlanId,_config.rules,_config.ruleCount,_config.tags,_config.tagCount,remoteTagIds,remoteTagValues,remoteTagCount,relevantLocalTags,relevantLocalTagCount)) {
case -1:
return false;
case 1:
m.sendCredentialsIfNeeded(RR,RR->node->now(),ztDest,_config.com,(const Capability *)0,relevantLocalTags,relevantLocalTagCount);
if (ztDest)
m.sendCredentialsIfNeeded(RR,RR->node->now(),ztDest,_config.com,(const Capability *)0,relevantLocalTags,relevantLocalTagCount);
return true;
}
for(unsigned int c=0;c<_config.capabilityCount;++c) {
relevantLocalTagCount = 0;
switch (_doZtFilter(RR,_config,false,ztSource,ztDest,macSource,macDest,frameData,frameLen,etherType,vlanId,_config.capabilities[c].rules(),_config.capabilities[c].ruleCount(),_config.tags,_config.tagCount,remoteTagIds,remoteTagValues,remoteTagCount,relevantLocalTags,relevantLocalTagCount)) {
switch (_doZtFilter(RR,noRedirect,_config,false,ztSource,ztDest,macSource,macDest,frameData,frameLen,etherType,vlanId,_config.capabilities[c].rules(),_config.capabilities[c].ruleCount(),_config.tags,_config.tagCount,remoteTagIds,remoteTagValues,remoteTagCount,relevantLocalTags,relevantLocalTagCount)) {
case -1:
return false;
case 1:
m.sendCredentialsIfNeeded(RR,RR->node->now(),ztDest,_config.com,&(_config.capabilities[c]),relevantLocalTags,relevantLocalTagCount);
if (ztDest)
m.sendCredentialsIfNeeded(RR,RR->node->now(),ztDest,_config.com,&(_config.capabilities[c]),relevantLocalTags,relevantLocalTagCount);
return true;
}
}
@ -517,7 +525,7 @@ bool Network::filterIncomingPacket(
Membership &m = _memberships[ztDest];
const unsigned int remoteTagCount = m.getAllTags(_config,remoteTagIds,remoteTagValues,ZT_MAX_NETWORK_TAGS);
switch (_doZtFilter(RR,_config,true,sourcePeer->address(),ztDest,macSource,macDest,frameData,frameLen,etherType,vlanId,_config.rules,_config.ruleCount,_config.tags,_config.tagCount,remoteTagIds,remoteTagValues,remoteTagCount,relevantLocalTags,relevantLocalTagCount)) {
switch (_doZtFilter(RR,false,_config,true,sourcePeer->address(),ztDest,macSource,macDest,frameData,frameLen,etherType,vlanId,_config.rules,_config.ruleCount,_config.tags,_config.tagCount,remoteTagIds,remoteTagValues,remoteTagCount,relevantLocalTags,relevantLocalTagCount)) {
case -1:
return false;
case 1:
@ -528,7 +536,7 @@ bool Network::filterIncomingPacket(
const Capability *c;
while ((c = mci.next(_config))) {
relevantLocalTagCount = 0;
switch(_doZtFilter(RR,_config,false,sourcePeer->address(),ztDest,macSource,macDest,frameData,frameLen,etherType,vlanId,c->rules(),c->ruleCount(),_config.tags,_config.tagCount,remoteTagIds,remoteTagValues,remoteTagCount,relevantLocalTags,relevantLocalTagCount)) {
switch(_doZtFilter(RR,false,_config,false,sourcePeer->address(),ztDest,macSource,macDest,frameData,frameLen,etherType,vlanId,c->rules(),c->ruleCount(),_config.tags,_config.tagCount,remoteTagIds,remoteTagValues,remoteTagCount,relevantLocalTags,relevantLocalTagCount)) {
case -1:
return false;
case 1:
@ -698,6 +706,8 @@ void Network::requestConfiguration()
return;
_lastRequestedConfiguration = RR->node->now();
const Address ctrl(controller());
Dictionary<ZT_NETWORKCONFIG_METADATA_DICT_CAPACITY> rmd;
rmd.add(ZT_NETWORKCONFIG_REQUEST_METADATA_KEY_VERSION,(uint64_t)ZT_NETWORKCONFIG_VERSION);
rmd.add(ZT_NETWORKCONFIG_REQUEST_METADATA_KEY_PROTOCOL_VERSION,(uint64_t)ZT_PROTO_VERSION);
@ -710,7 +720,7 @@ void Network::requestConfiguration()
rmd.add(ZT_NETWORKCONFIG_REQUEST_METADATA_KEY_MAX_NETWORK_TAGS,(uint64_t)ZT_MAX_NETWORK_TAGS);
rmd.add(ZT_NETWORKCONFIG_REQUEST_METADATA_KEY_FLAGS,(uint64_t)0);
if (controller() == RR->identity.address()) {
if (ctrl == RR->identity.address()) {
if (RR->localNetworkController) {
NetworkConfig nconf;
switch(RR->localNetworkController->doNetworkConfigRequest(InetAddress(),RR->identity,RR->identity,_id,rmd,nconf)) {
@ -732,9 +742,9 @@ void Network::requestConfiguration()
}
}
TRACE("requesting netconf for network %.16llx from controller %s",(unsigned long long)_id,controller().toString().c_str());
TRACE("requesting netconf for network %.16llx from controller %s",(unsigned long long)_id,ctrl.toString().c_str());
Packet outp(controller(),RR->identity.address(),Packet::VERB_NETWORK_CONFIG_REQUEST);
Packet outp(ctrl,RR->identity.address(),Packet::VERB_NETWORK_CONFIG_REQUEST);
outp.append((uint64_t)_id);
const unsigned int rmdSize = rmd.sizeBytes();
outp.append((uint16_t)rmdSize);