static void onPingResponse(enum SwitchPinger_Result result,
uint64_t label,
String* data,
uint32_t millisecondsLag,
uint32_t version,
void* onResponseContext)
{
if (SwitchPinger_Result_OK != result) {
return;
}
struct IFCPeer* ep = Identity_cast((struct IFCPeer*) onResponseContext);
struct Context* ic = ifcontrollerForPeer(ep);
struct Address addr;
Bits_memset(&addr, 0, sizeof(struct Address));
Bits_memcpyConst(addr.key, CryptoAuth_getHerPublicKey(ep->cryptoAuthIf), 32);
addr.path = ep->switchLabel;
Log_debug(ic->logger, "got switch pong from node with version [%d]", version);
RouterModule_addNode(ic->routerModule, &addr, version);
#ifdef Log_DEBUG
// This will be false if it times out.
//Assert_true(label == ep->switchLabel);
uint8_t path[20];
AddrTools_printPath(path, label);
uint8_t sl[20];
AddrTools_printPath(sl, ep->switchLabel);
Log_debug(ic->logger, "Received [%s] from lazy endpoint [%s] [%s]",
SwitchPinger_resultString(result)->bytes, path, sl);
#endif
}
static void onPingResponse(struct SwitchPinger_Response* resp, void* onResponseContext)
{
if (SwitchPinger_Result_OK != resp->res) {
return;
}
struct InterfaceController_Peer* ep =
Identity_check((struct InterfaceController_Peer*) onResponseContext);
struct InterfaceController_pvt* ic = ifcontrollerForPeer(ep);
struct Address addr;
Bits_memset(&addr, 0, sizeof(struct Address));
Bits_memcpyConst(addr.key, CryptoAuth_getHerPublicKey(ep->cryptoAuthIf), 32);
addr.path = ep->switchLabel;
addr.protocolVersion = resp->version;
#ifdef Log_DEBUG
uint8_t addrStr[60];
Address_print(addrStr, &addr);
uint8_t key[56];
Base32_encode(key, 56, CryptoAuth_getHerPublicKey(ep->cryptoAuthIf), 32);
#endif
if (!Version_isCompatible(Version_CURRENT_PROTOCOL, resp->version)) {
Log_debug(ic->logger, "got switch pong from node [%s] with incompatible version [%d]",
key, resp->version);
} else {
Log_debug(ic->logger, "got switch pong from node [%s] with version [%d]",
key, resp->version);
}
if (!ep->timeOfLastPing) {
// We've never heard from this machine before (or we've since forgotten about it)
// This is here because we want the tests to function without the janitor present.
// Other than that, it just makes a slightly more synchronous/guaranteed setup.
Router_sendGetPeers(ic->router, &addr, 0, 0, ic->allocator);
}
struct Node_Link* link = Router_linkForPath(ic->router, resp->label);
if (!link || !Node_getBestParent(link->child)) {
RumorMill_addNode(ic->rumorMill, &addr);
} else {
Log_debug(ic->logger, "link exists");
}
ep->timeOfLastPing = Time_currentTimeMilliseconds(ic->eventBase);
#ifdef Log_DEBUG
// This will be false if it times out.
//Assert_true(label == ep->switchLabel);
uint8_t path[20];
AddrTools_printPath(path, resp->label);
uint8_t sl[20];
AddrTools_printPath(sl, ep->switchLabel);
Log_debug(ic->logger, "Received [%s] from lazy endpoint [%s] [%s]",
SwitchPinger_resultString(resp->res)->bytes, path, sl);
#endif
}
static void adminPingOnResponse(struct SwitchPinger_Response* resp, void* vping)
{
struct Allocator* pingAlloc = resp->ping->pingAlloc;
struct Ping* ping = vping;
Dict* rd = Dict_new(pingAlloc);
if (resp->res == SwitchPinger_Result_LABEL_MISMATCH) {
uint8_t path[20] = {0};
AddrTools_printPath(path, resp->label);
String* pathStr = String_new(path, pingAlloc);
Dict_putString(rd, String_CONST("rpath"), pathStr, pingAlloc);
}
Dict_putInt(rd, String_CONST("version"), resp->version, pingAlloc);
Dict_putInt(rd, String_CONST("ms"), resp->milliseconds, pingAlloc);
Dict_putString(rd, String_CONST("result"), SwitchPinger_resultString(resp->res), pingAlloc);
Dict_putString(rd, String_CONST("path"), ping->path, pingAlloc);
if (resp->data) {
Dict_putString(rd, String_CONST("data"), resp->data, pingAlloc);
}
if (!Bits_isZero(resp->key, 32)) {
Dict_putString(rd, String_CONST("key"), Key_stringify(resp->key, pingAlloc), pingAlloc);
}
Admin_sendMessage(rd, ping->txid, ping->context->admin);
}
static void lookup(Dict* args, void* vcontext, String* txid, struct Allocator* requestAlloc)
{
struct Context* ctx = vcontext;
String* addrStr = Dict_getString(args, String_CONST("address"));
char* err = NULL;
uint8_t addr[16];
uint8_t resultBuff[60];
char* result = (char*) resultBuff;
if (addrStr->len != 39) {
err = "address wrong length";
} else if (AddrTools_parseIp(addr, (uint8_t*) addrStr->bytes)) {
err = "failed to parse address";
} else {
struct Node_Two* n = Router_lookup(ctx->router, addr);
if (!n) {
result = "not found";
} else if (Bits_memcmp(addr, n->address.ip6.bytes, 16)) {
Address_print(resultBuff, &n->address);
} else {
AddrTools_printPath(resultBuff, n->address.path);
}
}
Dict response = Dict_CONST(
String_CONST("error"), String_OBJ(String_CONST((err) ? err : "none")), Dict_CONST(
String_CONST("result"), String_OBJ(String_CONST(result)), NULL
));
Admin_sendMessage(&response, txid, ctx->admin);
}
static Iface_DEFUN switchErr(struct Message* msg, struct Pathfinder_pvt* pf)
{
struct PFChan_Core_SwitchErr switchErr;
Message_pop(msg, &switchErr, PFChan_Core_SwitchErr_MIN_SIZE, NULL);
uint64_t path = Endian_bigEndianToHost64(switchErr.sh.label_be);
uint64_t pathAtErrorHop = Endian_bigEndianToHost64(switchErr.ctrlErr.cause.label_be);
uint8_t pathStr[20];
AddrTools_printPath(pathStr, path);
int err = Endian_bigEndianToHost32(switchErr.ctrlErr.errorType_be);
Log_debug(pf->log, "switch err from [%s] type [%s][%d]", pathStr, Error_strerror(err), err);
struct Node_Link* link = NodeStore_linkForPath(pf->nodeStore, path);
uint8_t nodeAddr[16];
if (link) {
Bits_memcpy(nodeAddr, link->child->address.ip6.bytes, 16);
}
NodeStore_brokenLink(pf->nodeStore, path, pathAtErrorHop);
if (link) {
// Don't touch the node again, it might be a dangling pointer
SearchRunner_search(nodeAddr, 20, 3, pf->searchRunner, pf->alloc);
}
return NULL;
}
static void adminPeerStats(Dict* args, void* vcontext, String* txid)
{
struct Context* context = vcontext;
struct Allocator* alloc = Allocator_child(context->alloc);
struct InterfaceController_peerStats* stats = NULL;
int64_t* page = Dict_getInt(args, String_CONST("page"));
int i = (page) ? *page * ENTRIES_PER_PAGE : 0;
int count = context->ic->getPeerStats(context->ic, alloc, &stats);
String* bytesIn = String_CONST("bytesIn");
String* bytesOut = String_CONST("bytesOut");
String* pubKey = String_CONST("publicKey");
String* state = String_CONST("state");
String* last = String_CONST("last");
String* switchLabel = String_CONST("switchLabel");
String* isIncoming = String_CONST("isIncoming");
List* list = NULL;
for (int counter=0; i < count && counter++ < ENTRIES_PER_PAGE; i++) {
Dict* d = Dict_new(alloc);
Dict_putInt(d, bytesIn, stats[i].bytesIn, alloc);
Dict_putInt(d, bytesOut, stats[i].bytesOut, alloc);
Dict_putString(d, pubKey, Key_stringify(stats[i].pubKey, alloc), alloc);
String* stateString = String_new(InterfaceController_stateString(stats[i].state), alloc);
Dict_putString(d, state, stateString, alloc);
Dict_putInt(d, last, stats[i].timeOfLastMessage, alloc);
uint8_t labelStack[20];
AddrTools_printPath(labelStack, stats[i].switchLabel);
Dict_putString(d, switchLabel, String_new((char*)labelStack, alloc), alloc);
Dict_putInt(d, isIncoming, stats[i].isIncomingConnection, alloc);
list = List_addDict(list, d, alloc);
}
Dict response = Dict_CONST(
String_CONST("peers"), List_OBJ(list), Dict_CONST(
String_CONST("total"), Int_OBJ(count), NULL
));
if (i < count) {
response = Dict_CONST(
String_CONST("more"), Int_OBJ(1), response
);
}
Admin_sendMessage(&response, txid, context->admin);
Allocator_free(alloc);
}
static void dumpTable(Dict* args, void* vcontext, String* txid, struct Allocator* requestAlloc)
{
struct Context* ctx = Identity_check((struct Context*) vcontext);
int64_t* page = Dict_getInt(args, String_CONST("page"));
int ctr = (page) ? *page * ENTRIES_PER_PAGE : 0;
Dict* out = Dict_new(requestAlloc);
List* table = List_new(requestAlloc);
struct Node_Two* nn = NULL;
for (int i = 0; i < ctr+ENTRIES_PER_PAGE; i++) {
nn = NodeStore_getNextNode(ctx->store, nn);
if (!nn) { break; }
if (i < ctr) { continue; }
Dict* nodeDict = Dict_new(requestAlloc);
String* ip = String_newBinary(NULL, 39, requestAlloc);
Address_printIp(ip->bytes, &nn->address);
Dict_putString(nodeDict, String_CONST("ip"), ip, requestAlloc);
String* addr = Address_toString(&nn->address, requestAlloc);
Dict_putString(nodeDict, String_CONST("addr"), addr, requestAlloc);
String* path = String_newBinary(NULL, 19, requestAlloc);
AddrTools_printPath(path->bytes, nn->address.path);
Dict_putString(nodeDict, String_CONST("path"), path, requestAlloc);
Dict_putInt(nodeDict, String_CONST("link"), Node_getCost(nn), requestAlloc);
Dict_putInt(nodeDict, String_CONST("version"), nn->address.protocolVersion, requestAlloc);
Dict_putInt(nodeDict,
String_CONST("time"),
NodeStore_timeSinceLastPing(ctx->store, nn),
requestAlloc);
Dict_putInt(nodeDict,
String_CONST("bucket"),
NodeStore_bucketForAddr(ctx->store->selfAddress, &nn->address),
requestAlloc);
List_addDict(table, nodeDict, requestAlloc);
}
Dict_putList(out, String_CONST("routingTable"), table, requestAlloc);
if (nn) {
Dict_putInt(out, String_CONST("more"), 1, requestAlloc);
}
Dict_putInt(out, String_CONST("count"), ctx->store->nodeCount, requestAlloc);
Dict_putInt(out, String_CONST("peers"), ctx->store->peerCount, requestAlloc);
Dict_putString(out, String_CONST("deprecation"),
String_CONST("ip,path,version will soon be removed"), requestAlloc);
Admin_sendMessage(out, txid, ctx->admin);
}
/**
* Handle an incoming control message from a switch.
*
* @param context the ducttape context.
* @param message the control message, this should be alligned on the beginning of the content,
* that is to say, after the end of the switch header.
* @param switchHeader the header.
* @param switchIf the interface which leads to the switch.
* @param isFormV8 true if the control message is in the form specified by protocol version 8+
*/
static Iface_DEFUN incomingFromCore(struct Message* msg, struct Iface* coreIf)
{
struct ControlHandler_pvt* ch = Identity_check((struct ControlHandler_pvt*) coreIf);
struct RouteHeader routeHdr;
Message_pop(msg, &routeHdr, RouteHeader_SIZE, NULL);
uint8_t labelStr[20];
uint64_t label = Endian_bigEndianToHost64(routeHdr.sh.label_be);
AddrTools_printPath(labelStr, label);
// happens in benchmark
// Log_debug(ch->log, "ctrl packet from [%s]", labelStr);
if (msg->length < 4 + Control_Header_SIZE) {
Log_info(ch->log, "DROP runt ctrl packet from [%s]", labelStr);
return NULL;
}
Assert_true(routeHdr.flags & RouteHeader_flags_CTRLMSG);
if (Checksum_engine(msg->bytes, msg->length)) {
Log_info(ch->log, "DROP ctrl packet from [%s] with invalid checksum", labelStr);
return NULL;
}
struct Control* ctrl = (struct Control*) msg->bytes;
if (ctrl->header.type_be == Control_ERROR_be) {
return handleError(msg, ch, label, labelStr);
} else if (ctrl->header.type_be == Control_KEYPING_be
|| ctrl->header.type_be == Control_PING_be)
{
return handlePing(msg, ch, label, labelStr, ctrl->header.type_be);
} else if (ctrl->header.type_be == Control_KEYPONG_be
|| ctrl->header.type_be == Control_PONG_be)
{
Log_debug(ch->log, "got switch pong from [%s]", labelStr);
Message_push(msg, &routeHdr, RouteHeader_SIZE, NULL);
return Iface_next(&ch->pub.switchPingerIf, msg);
}
Log_info(ch->log, "DROP control packet of unknown type from [%s], type [%d]",
labelStr, Endian_bigEndianToHost16(ctrl->header.type_be));
return NULL;
}
/**
* Handle an incoming control message from a switch.
*
* @param context the ducttape context.
* @param message the control message, this should be alligned on the beginning of the content,
* that is to say, after the end of the switch header.
* @param switchHeader the header.
* @param switchIf the interface which leads to the switch.
* @param isFormV8 true if the control message is in the form specified by protocol version 8+
*/
static Iface_DEFUN incomingFromCore(struct Message* msg, struct Iface* coreIf)
{
struct ControlHandler_pvt* ch = Identity_check((struct ControlHandler_pvt*) coreIf);
struct SwitchHeader switchHeader;
Message_pop(msg, &switchHeader, SwitchHeader_SIZE, NULL);
uint8_t labelStr[20];
uint64_t label = Endian_bigEndianToHost64(switchHeader.label_be);
AddrTools_printPath(labelStr, label);
Log_debug(ch->log, "ctrl packet from [%s]", labelStr);
if (msg->length < 4 + Control_Header_SIZE) {
Log_info(ch->log, "DROP runt ctrl packet from [%s]", labelStr);
return NULL;
}
Assert_true(Message_pop32(msg, NULL) == 0xffffffff);
if (Checksum_engine(msg->bytes, msg->length)) {
Log_info(ch->log, "DROP ctrl packet from [%s] with invalid checksum", labelStr);
return NULL;
}
struct Control* ctrl = (struct Control*) msg->bytes;
if (ctrl->header.type_be == Control_ERROR_be) {
return handleError(msg, ch, label, labelStr);
} else if (ctrl->header.type_be == Control_KEYPING_be
|| ctrl->header.type_be == Control_PING_be)
{
return handlePing(msg, ch, label, labelStr, ctrl->header.type_be);
} else if (ctrl->header.type_be == Control_KEYPONG_be
|| ctrl->header.type_be == Control_PONG_be)
{
Log_debug(ch->log, "got switch pong from [%s]", labelStr);
// Shift back over the header
Message_shift(msg, 4 + SwitchHeader_SIZE, NULL);
return Iface_next(&ch->pub.switchPingerIf, msg);
}
Log_info(ch->log, "DROP control packet of unknown type from [%s], type [%d]",
labelStr, Endian_bigEndianToHost16(ctrl->header.type_be));
return NULL;
}
static void getRouteLabel(Dict* args, void* vcontext, String* txid, struct Allocator* requestAlloc)
{
struct Context* ctx = Identity_check((struct Context*) vcontext);
char* err = NULL;
String* pathToParentS = Dict_getString(args, String_CONST("pathToParent"));
uint64_t pathToParent = 0;
if (pathToParentS->len != 19 || AddrTools_parsePath(&pathToParent, pathToParentS->bytes)) {
err = "parse_pathToParent";
}
String* pathParentToChildS = Dict_getString(args, String_CONST("pathParentToChild"));
uint64_t pathParentToChild = 0;
if (pathParentToChildS->len != 19
|| AddrTools_parsePath(&pathParentToChild, pathParentToChildS->bytes))
{
err = "parse_pathParentToChild";
}
uint64_t label = UINT64_MAX;
if (!err) {
label = NodeStore_getRouteLabel(ctx->store, pathToParent, pathParentToChild);
err = NodeStore_getRouteLabel_strerror(label);
}
Dict* response = Dict_new(requestAlloc);
if (!err) {
String* printedPath = String_newBinary(NULL, 19, requestAlloc);
AddrTools_printPath(printedPath->bytes, label);
Dict_putString(response, String_new("result", requestAlloc), printedPath, requestAlloc);
Dict_putString(response,
String_new("error", requestAlloc),
String_new("none", requestAlloc),
requestAlloc);
Admin_sendMessage(response, txid, ctx->admin);
} else {
Dict_putString(response,
String_new("error", requestAlloc),
String_new(err, requestAlloc),
requestAlloc);
Admin_sendMessage(response, txid, ctx->admin);
}
}
static void onPingResponse(struct SwitchPinger_Response* resp, void* onResponseContext)
{
if (SwitchPinger_Result_OK != resp->res) {
return;
}
struct Peer* ep = Identity_check((struct Peer*) onResponseContext);
struct InterfaceController_pvt* ic = Identity_check(ep->ici->ic);
ep->addr.protocolVersion = resp->version;
if (Defined(Log_DEBUG)) {
String* addr = Address_toString(&ep->addr, resp->ping->pingAlloc);
if (!Version_isCompatible(Version_CURRENT_PROTOCOL, resp->version)) {
Log_debug(ic->logger, "got switch pong from node [%s] with incompatible version",
addr->bytes);
} else if (ep->addr.path != resp->label) {
uint8_t sl[20];
AddrTools_printPath(sl, resp->label);
Log_debug(ic->logger, "got switch pong from node [%s] mismatch label [%s]",
addr->bytes, sl);
} else {
Log_debug(ic->logger, "got switch pong from node [%s]", addr->bytes);
}
}
if (!Version_isCompatible(Version_CURRENT_PROTOCOL, resp->version)) {
return;
}
if (ep->state == InterfaceController_PeerState_ESTABLISHED) {
sendPeer(0xffffffff, PFChan_Core_PEER, ep);
}
ep->timeOfLastPing = Time_currentTimeMilliseconds(ic->eventBase);
if (Defined(Log_DEBUG)) {
String* addr = Address_toString(&ep->addr, resp->ping->pingAlloc);
Log_debug(ic->logger, "Received [%s] from lazy endpoint [%s]",
SwitchPinger_resultString(resp->res)->bytes, addr->bytes);
}
}
static void mkNextRequest(struct ReachabilityCollector_pvt* rcp)
{
struct PeerInfo_pvt* pi = NULL;
for (int i = 0; i < rcp->piList->length; i++) {
pi = ArrayList_OfPeerInfo_pvt_get(rcp->piList, i);
if (pi->pub.querying && !pi->waitForResponse) { break; }
}
if (!pi || !pi->pub.querying) {
Log_debug(rcp->log, "All [%u] peers have been queried", rcp->piList->length);
return;
}
if (pi->waitForResponse) {
Log_debug(rcp->log, "Peer is waiting for response.");
return;
}
struct MsgCore_Promise* query =
MsgCore_createQuery(rcp->msgCore, TIMEOUT_MILLISECONDS, rcp->alloc);
struct Query* q = Allocator_calloc(query->alloc, sizeof(struct Query), 1);
q->rcp = rcp;
q->addr = Address_toString(&pi->pub.addr, query->alloc);
query->userData = q;
query->cb = onReply;
Assert_true(AddressCalc_validAddress(pi->pub.addr.ip6.bytes));
query->target = Address_clone(&pi->pub.addr, query->alloc);
Dict* d = query->msg = Dict_new(query->alloc);
Dict_putStringCC(d, "q", "gp", query->alloc);
uint64_t label_be = Endian_hostToBigEndian64(pi->pathToCheck);
uint8_t nearbyLabelBytes[8];
Bits_memcpy(nearbyLabelBytes, &label_be, 8);
AddrTools_printPath(q->targetPath, pi->pathToCheck);
Log_debug(rcp->log, "Getting peers for peer [%s] tar [%s]", q->addr->bytes, q->targetPath);
Dict_putStringC(d, "tar",
String_newBinary(nearbyLabelBytes, 8, query->alloc), query->alloc);
BoilerplateResponder_addBoilerplate(rcp->br, d, &pi->pub.addr, query->alloc);
pi->waitForResponse = true;
}
/**
* This is called as sendMessage() by the switch.
* There is only one switch interface which sends all traffic.
* message is aligned on the beginning of the switch header.
*/
static uint8_t incomingFromSwitch(struct Message* message, struct Interface* switchIf)
{
struct Ducttape_pvt* context = Identity_cast((struct Ducttape_pvt*)switchIf->senderContext);
struct Ducttape_MessageHeader* dtHeader = getDtHeader(message, true);
struct Headers_SwitchHeader* switchHeader = (struct Headers_SwitchHeader*) message->bytes;
Message_shift(message, -Headers_SwitchHeader_SIZE);
// The label comes in reversed from the switch because the switch doesn't know that we aren't
// another switch ready to parse more bits, bit reversing the label yields the source address.
switchHeader->label_be = Bits_bitReverse64(switchHeader->label_be);
if (Headers_getMessageType(switchHeader) == Headers_SwitchHeader_TYPE_CONTROL) {
return handleControlMessage(context, message, switchHeader, switchIf);
}
if (message->length < 8) {
Log_info(context->logger, "runt");
return Error_INVALID;
}
#ifdef Version_2_COMPAT
translateVersion2(message, dtHeader);
#endif
// #1 try to get the session using the handle.
uint32_t nonceOrHandle = Endian_bigEndianToHost32(((uint32_t*)message->bytes)[0]);
struct SessionManager_Session* session = NULL;
if (nonceOrHandle > 3) {
// Run message, it's a handle.
session = SessionManager_sessionForHandle(nonceOrHandle, context->sm);
Message_shift(message, -4);
if (session) {
uint32_t nonce = Endian_bigEndianToHost32(((uint32_t*)message->bytes)[0]);
if (nonce == ~0u) {
Log_debug(context->logger, "Got connectToMe packet at switch layer");
return 0;
}
debugHandlesAndLabel(context->logger, session,
Endian_bigEndianToHost64(switchHeader->label_be),
"running session nonce[%u]",
nonce);
dtHeader->receiveHandle = nonceOrHandle;
} else {
Log_debug(context->logger, "Got message with unrecognized handle");
}
} else if (message->length >= Headers_CryptoAuth_SIZE) {
union Headers_CryptoAuth* caHeader = (union Headers_CryptoAuth*) message->bytes;
uint8_t ip6[16];
uint8_t* herKey = caHeader->handshake.publicKey;
AddressCalc_addressForPublicKey(ip6, herKey);
// a packet which claims to be "from us" causes problems
if (AddressCalc_validAddress(ip6) && Bits_memcmp(ip6, &context->myAddr, 16)) {
session = SessionManager_getSession(ip6, herKey, context->sm);
debugHandlesAndLabel(context->logger, session,
Endian_bigEndianToHost64(switchHeader->label_be),
"new session nonce[%d]", nonceOrHandle);
dtHeader->receiveHandle = Endian_bigEndianToHost32(session->receiveHandle_be);
} else {
Log_debug(context->logger, "Got message with invalid ip addr");
}
}
if (!session) {
#ifdef Log_INFO
uint8_t path[20];
AddrTools_printPath(path, Endian_bigEndianToHost64(switchHeader->label_be));
Log_info(context->logger, "Dropped traffic packet from unknown node. [%s]", path);
#endif
return 0;
}
// This is needed so that the priority and other information
// from the switch header can be passed on properly.
dtHeader->switchHeader = switchHeader;
// This goes to incomingFromCryptoAuth()
// then incomingFromRouter() then core()
dtHeader->layer = Ducttape_SessionLayer_OUTER;
if (session->iface.receiveMessage(message, &session->iface) == Error_AUTHENTICATION) {
debugHandlesAndLabel(context->logger, session,
Endian_bigEndianToHost64(switchHeader->label_be),
"Failed decrypting message NoH[%d] state[%d]",
nonceOrHandle, CryptoAuth_getState(&session->iface));
return Error_AUTHENTICATION;
}
return 0;
}
static void nodeForAddr(Dict* args, void* vcontext, String* txid, struct Allocator* alloc)
{
struct Context* ctx = Identity_check((struct Context*) vcontext);
Dict* ret = Dict_new(alloc);
Dict* result = Dict_new(alloc);
Dict_putDict(ret, String_new("result", alloc), result, alloc);
Dict_putString(ret, String_new("error", alloc), String_new("none", alloc), alloc);
// no ipStr specified --> return self-node
struct Node_Two* node = ctx->store->selfNode;
String* ipStr = Dict_getString(args, String_new("ip", alloc));
uint8_t ip[16];
while (ipStr) {
if (AddrTools_parseIp(ip, ipStr->bytes)) {
Dict_remove(ret, String_CONST("result"));
Dict_putString(ret,
String_new("error", alloc),
String_new("parse_ip", alloc),
alloc);
} else if (!(node = NodeStore_nodeForAddr(ctx->store, ip))) {
// not found
} else {
break;
}
Admin_sendMessage(ret, txid, ctx->admin);
return;
}
Dict_putInt(result, String_new("protocolVersion", alloc), node->address.protocolVersion, alloc);
String* key = Key_stringify(node->address.key, alloc);
Dict_putString(result, String_new("key", alloc), key, alloc);
uint32_t count = linkCount(node);
Dict_putInt(result, String_new("linkCount", alloc), count, alloc);
Dict_putInt(result, String_new("cost", alloc), Node_getCost(node), alloc);
List* encScheme = EncodingScheme_asList(node->encodingScheme, alloc);
Dict_putList(result, String_new("encodingScheme", alloc), encScheme, alloc);
Dict* bestParent = Dict_new(alloc);
String* parentIp = String_newBinary(NULL, 39, alloc);
AddrTools_printIp(parentIp->bytes, Node_getBestParent(node)->parent->address.ip6.bytes);
Dict_putString(bestParent, String_CONST("ip"), parentIp, alloc);
String* parentChildLabel = String_newBinary(NULL, 19, alloc);
AddrTools_printPath(parentChildLabel->bytes, Node_getBestParent(node)->cannonicalLabel);
Dict_putString(bestParent, String_CONST("parentChildLabel"), parentChildLabel, alloc);
int isOneHop = Node_isOneHopLink(Node_getBestParent(node));
Dict_putInt(bestParent, String_CONST("isOneHop"), isOneHop, alloc);
Dict_putDict(result, String_CONST("bestParent"), bestParent, alloc);
String* bestLabel = String_newBinary(NULL, 19, alloc);
AddrTools_printPath(bestLabel->bytes, node->address.path);
Dict_putString(result, String_CONST("routeLabel"), bestLabel, alloc);
Admin_sendMessage(ret, txid, ctx->admin);
}
/**
* This is called as sendMessage() by the switch.
* There is only one switch interface which sends all traffic.
* message is aligned on the beginning of the switch header.
*/
static uint8_t incomingFromSwitch(struct Message* message, struct Interface* switchIf)
{
struct Ducttape* context = switchIf->senderContext;
struct Headers_SwitchHeader* switchHeader = (struct Headers_SwitchHeader*) message->bytes;
Message_shift(message, -Headers_SwitchHeader_SIZE);
// The label comes in reversed from the switch because the switch doesn't know that we aren't
// another switch ready to parse more bits, bit reversing the label yields the source address.
switchHeader->label_be = Bits_bitReverse64(switchHeader->label_be);
if (Headers_getMessageType(switchHeader) == Headers_SwitchHeader_TYPE_CONTROL) {
uint8_t labelStr[20];
uint64_t label = Endian_bigEndianToHost64(switchHeader->label_be);
AddrTools_printPath(labelStr, label);
if (message->length < Control_HEADER_SIZE) {
Log_info1(context->logger, "dropped runt ctrl packet from [%s]", labelStr);
return Error_NONE;
} else {
Log_debug1(context->logger, "ctrl packet from [%s]", labelStr);
}
struct Control* ctrl = (struct Control*) message->bytes;
bool pong = false;
if (ctrl->type_be == Control_ERROR_be) {
if (message->length < Control_Error_MIN_SIZE) {
Log_info1(context->logger, "dropped runt error packet from [%s]", labelStr);
return Error_NONE;
}
Log_info2(context->logger,
"error packet from [%s], error type [%d]",
labelStr,
Endian_bigEndianToHost32(ctrl->content.error.errorType_be));
RouterModule_brokenPath(Endian_bigEndianToHost64(switchHeader->label_be),
context->routerModule);
uint8_t causeType = Headers_getMessageType(&ctrl->content.error.cause);
if (causeType == Headers_SwitchHeader_TYPE_CONTROL) {
if (message->length < Control_Error_MIN_SIZE + Control_HEADER_SIZE) {
Log_info1(context->logger,
"error packet from [%s] containing runt cause packet",
labelStr);
return Error_NONE;
}
struct Control* causeCtrl = (struct Control*) &(&ctrl->content.error.cause)[1];
if (causeCtrl->type_be != Control_PING_be) {
Log_info3(context->logger,
"error packet from [%s] caused by [%s] packet ([%d])",
labelStr,
Control_typeString(causeCtrl->type_be),
Endian_bigEndianToHost16(causeCtrl->type_be));
} else {
Log_debug2(context->logger,
"error packet from [%s] in response to ping, length: [%d].",
labelStr,
message->length);
// errors resulting from pings are forwarded back to the pinger.
pong = true;
}
} else if (causeType != Headers_SwitchHeader_TYPE_DATA) {
Log_info1(context->logger,
"error packet from [%s] containing cause of unknown type [%d]",
labelStr);
}
} else if (ctrl->type_be == Control_PONG_be) {
pong = true;
} else if (ctrl->type_be == Control_PING_be) {
ctrl->type_be = Control_PONG_be;
Message_shift(message, Headers_SwitchHeader_SIZE);
switchIf->receiveMessage(message, switchIf);
} else {
Log_info2(context->logger,
"control packet of unknown type from [%s], type [%d]",
labelStr, Endian_bigEndianToHost16(ctrl->type_be));
}
if (pong) {
// Shift back over the header
Message_shift(message, Headers_SwitchHeader_SIZE);
context->switchPingerIf->receiveMessage(message, context->switchPingerIf);
}
return Error_NONE;
}
uint8_t* herKey = extractPublicKey(message, switchHeader->label_be, context->logger);
int herAddrIndex;
if (herKey) {
uint8_t herAddrStore[16];
AddressCalc_addressForPublicKey(herAddrStore, herKey);
if (herAddrStore[0] != 0xFC) {
Log_debug(context->logger,
"Got message from peer whose address is not in fc00::/8 range.\n");
return 0;
}
herAddrIndex = AddressMapper_put(switchHeader->label_be, herAddrStore, &context->addrMap);
} else {
herAddrIndex = AddressMapper_indexOf(switchHeader->label_be, &context->addrMap);
if (herAddrIndex == -1) {
uint64_t label = Endian_bigEndianToHost64(switchHeader->label_be);
struct Node* n = RouterModule_getNode(label, context->routerModule);
if (n) {
herAddrIndex = AddressMapper_put(switchHeader->label_be,
n->address.ip6.bytes,
&context->addrMap);
} else {
#ifdef Log_DEBUG
uint8_t switchAddr[20];
AddrTools_printPath(switchAddr, Endian_bigEndianToHost64(switchHeader->label_be));
Log_debug1(context->logger,
"Dropped traffic packet from unknown node. (%s)\n",
&switchAddr);
#endif
return 0;
}
}
}
// If the source address is the same as the router address, no third layer of crypto.
context->routerAddress = context->addrMap.entries[herAddrIndex].address;
// This is needed so that the priority and other information
// from the switch header can be passed on properly.
context->switchHeader = switchHeader;
context->session = SessionManager_getSession(context->routerAddress, herKey, context->sm);
// This goes to incomingFromCryptoAuth()
// then incomingFromRouter() then core()
context->layer = OUTER_LAYER;
context->session->receiveMessage(message, context->session);
return 0;
}
static void adminPeerStats(Dict* args, void* vcontext, String* txid, struct Allocator* alloc)
{
struct Context* context = Identity_check((struct Context*)vcontext);
struct InterfaceController_PeerStats* stats = NULL;
int64_t* page = Dict_getInt(args, String_CONST("page"));
int i = (page) ? *page * ENTRIES_PER_PAGE : 0;
int count = InterfaceController_getPeerStats(context->ic, alloc, &stats);
String* bytesIn = String_CONST("bytesIn");
String* bytesOut = String_CONST("bytesOut");
String* pubKey = String_CONST("publicKey");
String* addr = String_CONST("addr");
String* state = String_CONST("state");
String* last = String_CONST("last");
String* switchLabel = String_CONST("switchLabel");
String* isIncoming = String_CONST("isIncoming");
String* user = String_CONST("user");
String* version = String_CONST("version");
String* duplicates = String_CONST("duplicates");
String* lostPackets = String_CONST("lostPackets");
String* receivedOutOfRange = String_CONST("receivedOutOfRange");
List* list = List_new(alloc);
for (int counter=0; i < count && counter++ < ENTRIES_PER_PAGE; i++) {
Dict* d = Dict_new(alloc);
Dict_putInt(d, bytesIn, stats[i].bytesIn, alloc);
Dict_putInt(d, bytesOut, stats[i].bytesOut, alloc);
Dict_putString(d, addr, Address_toString(&stats[i].addr, alloc), alloc);
Dict_putString(d, pubKey, Key_stringify(stats[i].addr.key, alloc), alloc);
String* stateString = String_new(InterfaceController_stateString(stats[i].state), alloc);
Dict_putString(d, state, stateString, alloc);
Dict_putInt(d, last, stats[i].timeOfLastMessage, alloc);
uint8_t labelStack[20];
AddrTools_printPath(labelStack, stats[i].addr.path);
Dict_putString(d, switchLabel, String_new((char*)labelStack, alloc), alloc);
Dict_putInt(d, isIncoming, stats[i].isIncomingConnection, alloc);
Dict_putInt(d, duplicates, stats[i].duplicates, alloc);
Dict_putInt(d, lostPackets, stats[i].lostPackets, alloc);
Dict_putInt(d, receivedOutOfRange, stats[i].receivedOutOfRange, alloc);
if (stats[i].user) {
Dict_putString(d, user, stats[i].user, alloc);
}
uint8_t address[16];
AddressCalc_addressForPublicKey(address, stats[i].addr.key);
Dict_putInt(d, version, stats[i].addr.protocolVersion, alloc);
List_addDict(list, d, alloc);
}
Dict* resp = Dict_new(alloc);
Dict_putList(resp, String_CONST("peers"), list, alloc);
Dict_putInt(resp, String_CONST("total"), count, alloc);
if (i < count) {
Dict_putInt(resp, String_CONST("more"), 1, alloc);
}
Dict_putString(resp, String_CONST("deprecation"),
String_CONST("publicKey,switchLabel,version will soon be removed"), alloc);
Admin_sendMessage(resp, txid, context->admin);
}
static void dumpTable_addEntries(struct Context* ctx,
int i,
int j,
struct List_Item* last,
String* txid)
{
uint8_t path[20];
uint8_t ip[40];
String* pathStr = &(String) { .len = 19, .bytes = (char*)path };
String* ipStr = &(String) { .len = 39, .bytes = (char*)ip };
Object* link = Int_OBJ(0xFFFFFFFF);
Object* version = Int_OBJ(Version_DEFAULT_ASSUMPTION);
Dict entry = Dict_CONST(
String_CONST("ip"), String_OBJ(ipStr), Dict_CONST(
String_CONST("link"), link, Dict_CONST(
String_CONST("path"), String_OBJ(pathStr), Dict_CONST(
String_CONST("version"), version, NULL
))));
struct List_Item next = { .next = last, .elem = Dict_OBJ(&entry) };
if (i >= ctx->store->size || j >= ENTRIES_PER_PAGE) {
if (i > j) {
dumpTable_send(ctx, last, (j >= ENTRIES_PER_PAGE), txid);
return;
}
Address_printIp(ip, ctx->store->selfAddress);
strcpy((char*)path, "0000.0000.0000.0001");
dumpTable_send(ctx, &next, (j >= ENTRIES_PER_PAGE), txid);
return;
}
struct Node* n = NodeStore_dumpTable(ctx->store, i);
link->as.number = n->reach;
version->as.number = n->version;
Address_printIp(ip, &n->address);
AddrTools_printPath(path, n->address.path);
dumpTable_addEntries(ctx, i + 1, j + 1, &next, txid);
}
static void dumpTable(Dict* args, void* vcontext, String* txid)
{
struct Context* ctx = Identity_cast((struct Context*) vcontext);
int64_t* page = Dict_getInt(args, String_CONST("page"));
int i = (page) ? *page * ENTRIES_PER_PAGE : 0;
dumpTable_addEntries(ctx, i, 0, NULL, txid);
}
void NodeStore_admin_register(struct NodeStore* nodeStore,
struct Admin* admin,
struct Allocator* alloc)
{
struct Context* ctx = Allocator_clone(alloc, (&(struct Context) {
.admin = admin,
.alloc = alloc,
.store = nodeStore
}));
Identity_set(ctx);
Admin_registerFunction("NodeStore_dumpTable", dumpTable, ctx, false,
((struct Admin_FunctionArg[]) {
{ .name = "page", .required = 1, .type = "Int" },
}), admin);
}
static inline int incomingFromRouter(struct Message* message,
struct Ducttape_MessageHeader* dtHeader,
struct SessionManager_Session* session,
struct Ducttape_pvt* context)
{
uint8_t* pubKey = CryptoAuth_getHerPublicKey(&session->iface);
if (!validEncryptedIP6(message)) {
// Not valid cjdns IPv6, we'll try it as an IPv4 or ICANN-IPv6 packet
// and check if we have an agreement with the node who sent it.
Message_shift(message, IpTunnel_PacketInfoHeader_SIZE);
struct IpTunnel_PacketInfoHeader* header =
(struct IpTunnel_PacketInfoHeader*) message->bytes;
uint8_t* addr = session->ip6;
Bits_memcpyConst(header->nodeIp6Addr, addr, 16);
Bits_memcpyConst(header->nodeKey, pubKey, 32);
struct Interface* ipTun = &context->ipTunnel->nodeInterface;
return ipTun->sendMessage(message, ipTun);
}
struct Address srcAddr = {
.path = Endian_bigEndianToHost64(dtHeader->switchHeader->label_be)
};
Bits_memcpyConst(srcAddr.key, pubKey, 32);
//Log_debug(context->logger, "Got message from router.\n");
int ret = core(message, dtHeader, session, context);
struct Node* n = RouterModule_getNode(srcAddr.path, context->routerModule);
if (!n) {
Address_getPrefix(&srcAddr);
RouterModule_addNode(context->routerModule, &srcAddr, session->version);
} else {
n->reach += 1;
RouterModule_updateReach(n, context->routerModule);
}
return ret;
}
static uint8_t incomingFromCryptoAuth(struct Message* message, struct Interface* iface)
{
struct Ducttape_pvt* context = Identity_cast((struct Ducttape_pvt*) iface->receiverContext);
struct Ducttape_MessageHeader* dtHeader = getDtHeader(message, false);
enum Ducttape_SessionLayer layer = dtHeader->layer;
dtHeader->layer = Ducttape_SessionLayer_INVALID;
struct SessionManager_Session* session =
SessionManager_sessionForHandle(dtHeader->receiveHandle, context->sm);
if (!session) {
// This should never happen but there's no strong preventitive.
Log_info(context->logger, "SESSION DISAPPEARED!");
return 0;
}
// If the packet came from a new session, put the send handle in the session.
if (CryptoAuth_getState(iface) < CryptoAuth_ESTABLISHED) {
// If this is true then the incoming message is definitely a handshake.
if (message->length < 4) {
debugHandles0(context->logger, session, "runt");
return Error_INVALID;
}
if (layer == Ducttape_SessionLayer_OUTER) {
#ifdef Version_2_COMPAT
if (dtHeader->currentSessionVersion >= 3) {
session->version = dtHeader->currentSessionVersion;
#endif
Message_pop(message, &session->sendHandle_be, 4);
#ifdef Version_2_COMPAT
} else {
session->sendHandle_be = dtHeader->currentSessionSendHandle_be;
}
#endif
} else {
// inner layer, always grab the handle
Message_pop(message, &session->sendHandle_be, 4);
debugHandles0(context->logger, session, "New session, incoming layer3");
}
}
switch (layer) {
case Ducttape_SessionLayer_OUTER:
return incomingFromRouter(message, dtHeader, session, context);
case Ducttape_SessionLayer_INNER:
return incomingForMe(message, dtHeader, session, context,
CryptoAuth_getHerPublicKey(iface));
default:
Assert_always(false);
}
// never reached.
return 0;
}
static uint8_t outgoingFromCryptoAuth(struct Message* message, struct Interface* iface)
{
struct Ducttape_pvt* context = Identity_cast((struct Ducttape_pvt*) iface->senderContext);
struct Ducttape_MessageHeader* dtHeader = getDtHeader(message, false);
struct SessionManager_Session* session =
SessionManager_sessionForHandle(dtHeader->receiveHandle, context->sm);
enum Ducttape_SessionLayer layer = dtHeader->layer;
dtHeader->layer = Ducttape_SessionLayer_INVALID;
if (!session) {
// This should never happen but there's no strong preventitive.
Log_info(context->logger, "SESSION DISAPPEARED!");
return 0;
}
if (layer == Ducttape_SessionLayer_OUTER) {
return sendToSwitch(message, dtHeader, session, context);
} else if (layer == Ducttape_SessionLayer_INNER) {
Log_debug(context->logger, "Sending layer3 message");
return outgoingFromMe(message, dtHeader, session, context);
} else {
Assert_true(0);
}
}
/**
* Handle an incoming control message from a switch.
*
* @param context the ducttape context.
* @param message the control message, this should be alligned on the beginning of the content,
* that is to say, after the end of the switch header.
* @param switchHeader the header.
* @param switchIf the interface which leads to the switch.
*/
static uint8_t handleControlMessage(struct Ducttape_pvt* context,
struct Message* message,
struct Headers_SwitchHeader* switchHeader,
struct Interface* switchIf)
{
uint8_t labelStr[20];
uint64_t label = Endian_bigEndianToHost64(switchHeader->label_be);
AddrTools_printPath(labelStr, label);
if (message->length < Control_HEADER_SIZE) {
Log_info(context->logger, "dropped runt ctrl packet from [%s]", labelStr);
return Error_NONE;
}
struct Control* ctrl = (struct Control*) message->bytes;
if (Checksum_engine(message->bytes, message->length)) {
Log_info(context->logger, "ctrl packet from [%s] with invalid checksum.", labelStr);
return Error_NONE;
}
bool pong = false;
if (ctrl->type_be == Control_ERROR_be) {
if (message->length < Control_Error_MIN_SIZE) {
Log_info(context->logger, "dropped runt error packet from [%s]", labelStr);
return Error_NONE;
}
uint64_t path = Endian_bigEndianToHost64(switchHeader->label_be);
RouterModule_brokenPath(path, context->routerModule);
uint8_t causeType = Headers_getMessageType(&ctrl->content.error.cause);
if (causeType == Headers_SwitchHeader_TYPE_CONTROL) {
if (message->length < Control_Error_MIN_SIZE + Control_HEADER_SIZE) {
Log_info(context->logger,
"error packet from [%s] containing runt cause packet",
labelStr);
return Error_NONE;
}
struct Control* causeCtrl = (struct Control*) &(&ctrl->content.error.cause)[1];
if (causeCtrl->type_be != Control_PING_be) {
Log_info(context->logger,
"error packet from [%s] caused by [%s] packet ([%u])",
labelStr,
Control_typeString(causeCtrl->type_be),
Endian_bigEndianToHost16(causeCtrl->type_be));
} else {
if (LabelSplicer_isOneHop(label)
&& ctrl->content.error.errorType_be
== Endian_hostToBigEndian32(Error_UNDELIVERABLE))
{
// this is our own InterfaceController complaining
// because the node isn't responding to pings.
return Error_NONE;
}
Log_debug(context->logger,
"error packet from [%s] in response to ping, err [%u], length: [%u].",
labelStr,
Endian_bigEndianToHost32(ctrl->content.error.errorType_be),
message->length);
// errors resulting from pings are forwarded back to the pinger.
pong = true;
}
} else if (causeType != Headers_SwitchHeader_TYPE_DATA) {
Log_info(context->logger,
"error packet from [%s] containing cause of unknown type [%u]",
labelStr, causeType);
} else {
Log_info(context->logger,
"error packet from [%s], error type [%u]",
labelStr,
Endian_bigEndianToHost32(ctrl->content.error.errorType_be));
}
} else if (ctrl->type_be == Control_PONG_be) {
pong = true;
} else if (ctrl->type_be == Control_PING_be) {
Message_shift(message, -Control_HEADER_SIZE);
if (message->length < Control_Ping_MIN_SIZE) {
Log_info(context->logger, "dropped runt ping");
return Error_INVALID;
}
struct Control_Ping* ping = (struct Control_Ping*) message->bytes;
ping->magic = Control_Pong_MAGIC;
ping->version_be = Endian_hostToBigEndian32(Version_CURRENT_PROTOCOL);
Message_shift(message, Control_HEADER_SIZE);
ctrl->type_be = Control_PONG_be;
ctrl->checksum_be = 0;
ctrl->checksum_be = Checksum_engine(message->bytes, message->length);
Message_shift(message, Headers_SwitchHeader_SIZE);
Log_info(context->logger, "got switch ping from [%s]", labelStr);
switchIf->receiveMessage(message, switchIf);
} else {
Log_info(context->logger,
"control packet of unknown type from [%s], type [%d]",
labelStr, Endian_bigEndianToHost16(ctrl->type_be));
}
if (pong && context->pub.switchPingerIf.receiveMessage) {
// Shift back over the header
Message_shift(message, Headers_SwitchHeader_SIZE);
context->pub.switchPingerIf.receiveMessage(
message, &context->pub.switchPingerIf);
}
return Error_NONE;
}
static void getLink(Dict* args, void* vcontext, String* txid, struct Allocator* alloc)
{
struct Context* ctx = Identity_check((struct Context*) vcontext);
Dict* ret = Dict_new(alloc);
Dict* result = Dict_new(alloc);
Dict_putDict(ret, String_new("result", alloc), result, alloc);
Dict_putString(ret, String_new("error", alloc), String_new("none", alloc), alloc);
struct Node_Link* link = NULL;
struct Node_Two* node = NULL;
String* ipStr = Dict_getString(args, String_new("parent", alloc));
int64_t* linkNum = Dict_getInt(args, String_new("linkNum", alloc));
if (ipStr && ipStr->len) {
uint8_t ip[16];
if (AddrTools_parseIp(ip, ipStr->bytes)) {
Dict_remove(ret, String_CONST("result"));
Dict_putString(ret,
String_new("error", alloc),
String_new("parse_parent", alloc),
alloc);
Admin_sendMessage(ret, txid, ctx->admin);
return;
} else if (!(node = NodeStore_nodeForAddr(ctx->store, ip))) {
Dict_putString(ret,
String_new("error", alloc),
String_new("not_found", alloc),
alloc);
Admin_sendMessage(ret, txid, ctx->admin);
return;
} else if (!(link = getLinkByNum(node, *linkNum))) {
Dict_putString(ret,
String_new("error", alloc),
String_new("unknown", alloc),
alloc);
Admin_sendMessage(ret, txid, ctx->admin);
return;
}
} else {
for (int i = 0; i <= *linkNum; i++) {
link = NodeStore_getNextLink(ctx->store, link);
if (!link) { break; }
}
if (!link) {
Dict_putString(ret,
String_new("error", alloc),
String_new("not_found", alloc),
alloc);
Admin_sendMessage(ret, txid, ctx->admin);
return;
}
}
Dict_putInt(result,
String_new("inverseLinkEncodingFormNumber", alloc),
link->inverseLinkEncodingFormNumber,
alloc);
Dict_putInt(result, String_new("linkCost", alloc), link->linkCost, alloc);
Dict_putInt(result, String_new("isOneHop", alloc), Node_isOneHopLink(link), alloc);
int bestParent = (Node_getBestParent(link->child) == link);
Dict_putInt(result, String_new("bestParent", alloc), bestParent, alloc);
String* cannonicalLabel = String_newBinary(NULL, 19, alloc);
AddrTools_printPath(cannonicalLabel->bytes, link->cannonicalLabel);
Dict_putString(result, String_new("cannonicalLabel", alloc), cannonicalLabel, alloc);
String* parent = Address_toString(&link->parent->address, alloc);
Dict_putString(result, String_new("parent", alloc), parent, alloc);
String* child = Address_toString(&link->child->address, alloc);
Dict_putString(result, String_new("child", alloc), child, alloc);
Admin_sendMessage(ret, txid, ctx->admin);
}
static void dumpTable_addEntries(struct Context* ctx,
int i,
int j,
struct List_Item* last,
String* txid)
{
uint8_t path[20];
uint8_t ip[40];
String* pathStr = &(String) { .len = 19, .bytes = (char*)path };
String* ipStr = &(String) { .len = 39, .bytes = (char*)ip };
Object* link = Int_OBJ(0xFFFFFFFF);
Object* version = Int_OBJ(Version_DEFAULT_ASSUMPTION);
Dict entry = Dict_CONST(
String_CONST("ip"), String_OBJ(ipStr), Dict_CONST(
String_CONST("link"), link, Dict_CONST(
String_CONST("path"), String_OBJ(pathStr), Dict_CONST(
String_CONST("version"), version, NULL
))));
struct List_Item next = { .next = last, .elem = Dict_OBJ(&entry) };
if (i >= ctx->store->size || j >= ENTRIES_PER_PAGE) {
if (i > j) {
dumpTable_send(ctx, last, (j >= ENTRIES_PER_PAGE), txid);
return;
}
Address_printIp(ip, ctx->store->selfAddress);
strcpy((char*)path, "0000.0000.0000.0001");
version->as.number = Version_CURRENT_PROTOCOL;
dumpTable_send(ctx, &next, (j >= ENTRIES_PER_PAGE), txid);
return;
}
struct Node* n = NodeStore_dumpTable(ctx->store, i);
link->as.number = n->reach;
version->as.number = n->version;
Address_printIp(ip, &n->address);
AddrTools_printPath(path, n->address.path);
dumpTable_addEntries(ctx, i + 1, j + 1, &next, txid);
}
static void dumpTable(Dict* args, void* vcontext, String* txid, struct Allocator* requestAlloc)
{
struct Context* ctx = Identity_cast((struct Context*) vcontext);
int64_t* page = Dict_getInt(args, String_CONST("page"));
int i = (page) ? *page * ENTRIES_PER_PAGE : 0;
dumpTable_addEntries(ctx, i, 0, NULL, txid);
}
static bool isOneHop(struct Node_Link* link)
{
struct EncodingScheme* ps = link->parent->encodingScheme;
int num = EncodingScheme_getFormNum(ps, link->cannonicalLabel);
Assert_always(num > -1 && num < ps->count);
return EncodingScheme_formSize(&ps->forms[num]) == Bits_log2x64(link->cannonicalLabel);
}
static void getLink(Dict* args, void* vcontext, String* txid, struct Allocator* alloc)
{
struct Context* ctx = Identity_cast((struct Context*) vcontext);
Dict* ret = Dict_new(alloc);
Dict* result = Dict_new(alloc);
Dict_putDict(ret, String_new("result", alloc), result, alloc);
Dict_putString(ret, String_new("error", alloc), String_new("none", alloc), alloc);
struct Node_Link* link;
String* ipStr = Dict_getString(args, String_new("parent", alloc));
int64_t* linkNum = Dict_getInt(args, String_new("linkNum", alloc));
uint8_t ip[16];
if (ipStr->len != 39 || AddrTools_parseIp(ip, ipStr->bytes)) {
Dict_remove(ret, String_CONST("result"));
Dict_putString(ret,
String_new("error", alloc),
String_new("Could not parse ip", alloc),
alloc);
} else if ((link = NodeStore_getLink(ctx->store, ip, *linkNum))) {
Dict_putInt(result,
String_new("inverseLinkEncodingFormNumber", alloc),
link->inverseLinkEncodingFormNumber,
alloc);
Dict_putInt(result, String_new("linkState", alloc), link->linkState, alloc);
Dict_putInt(result, String_new("isOneHop", alloc), isOneHop(link), alloc);
String* cannonicalLabel = String_newBinary(NULL, 19, alloc);
AddrTools_printPath(cannonicalLabel->bytes, link->cannonicalLabel);
Dict_putString(result, String_new("cannonicalLabel", alloc), cannonicalLabel, alloc);
String* parent = String_newBinary(NULL, 39, alloc);
AddrTools_printIp(parent->bytes, link->parent->address.ip6.bytes);
Dict_putString(result, String_new("parent", alloc), parent, alloc);
String* child = String_newBinary(NULL, 39, alloc);
AddrTools_printIp(child->bytes, link->child->address.ip6.bytes);
Dict_putString(result, String_new("child", alloc), child, alloc);
}
Admin_sendMessage(ret, txid, ctx->admin);
}
static void getNode(Dict* args, void* vcontext, String* txid, struct Allocator* alloc)
{
struct Context* ctx = Identity_cast((struct Context*) vcontext);
Dict* ret = Dict_new(alloc);
Dict* result = Dict_new(alloc);
Dict_putDict(ret, String_new("result", alloc), result, alloc);
Dict_putString(ret, String_new("error", alloc), String_new("none", alloc), alloc);
// no ipStr specified --> return self-node
struct Node_Two* node = ctx->store->selfNode;
String* ipStr = Dict_getString(args, String_new("ip", alloc));
uint8_t ip[16];
while (ipStr) {
if (ipStr->len != 39 || AddrTools_parseIp(ip, ipStr->bytes)) {
Dict_remove(ret, String_CONST("result"));
Dict_putString(ret,
String_new("error", alloc),
String_new("Could not parse ip", alloc),
alloc);
} else if (!(node = NodeStore_getNode2(ctx->store, ip))) {
// not found
} else {
break;
}
Admin_sendMessage(ret, txid, ctx->admin);
return;
}
Dict_putInt(result, String_new("protocolVersion", alloc), node->version, alloc);
String* key = Key_stringify(node->address.key, alloc);
Dict_putString(result, String_new("key", alloc), key, alloc);
uint32_t linkCount = NodeStore_linkCount(node);
Dict_putInt(result, String_new("linkCount", alloc), linkCount, alloc);
List* encScheme = EncodingScheme_asList(node->encodingScheme, alloc);
Dict_putList(result, String_new("encodingScheme", alloc), encScheme, alloc);
Admin_sendMessage(ret, txid, ctx->admin);
}
static void getRouteLabel(Dict* args, void* vcontext, String* txid, struct Allocator* requestAlloc)
{
struct Context* ctx = Identity_cast((struct Context*) vcontext);
char* err = NULL;
String* pathToParentS = Dict_getString(args, String_CONST("pathToParent"));
uint64_t pathToParent;
if (pathToParentS->len != 19) {
err = "pathToParent incorrect length";
} else if (AddrTools_parsePath(&pathToParent, pathToParentS->bytes)) {
err = "Failed to parse pathToParent";
}
String* childAddressS = Dict_getString(args, String_CONST("childAddress"));
uint8_t childAddress[16];
if (childAddressS->len != 39) {
err = "childAddress of incorrect length, must be a 39 character full ipv6 address";
} else if (AddrTools_parseIp(childAddress, childAddressS->bytes)) {
err = "Failed to parse childAddress";
}
uint64_t label = UINT64_MAX;
if (!err) {
label = NodeStore_getRouteLabel(ctx->store, pathToParent, childAddress);
err = NodeStore_getRouteLabel_strerror(label);
}
Dict* response = Dict_new(requestAlloc);
if (!err) {
String* printedPath = String_newBinary(NULL, 19, requestAlloc);
AddrTools_printPath(printedPath->bytes, label);
Dict_putString(response, String_new("result", requestAlloc), printedPath, requestAlloc);
Dict_putString(response,
String_new("error", requestAlloc),
String_new("none", requestAlloc),
requestAlloc);
Admin_sendMessage(response, txid, ctx->admin);
} else {
Dict_putString(response,
String_new("error", requestAlloc),
String_new(err, requestAlloc),
requestAlloc);
Admin_sendMessage(response, txid, ctx->admin);
}
}
void NodeStore_admin_register(struct NodeStore* nodeStore,
struct Admin* admin,
struct Allocator* alloc)
{
struct Context* ctx = Allocator_clone(alloc, (&(struct Context) {
.admin = admin,
.alloc = alloc,
.store = nodeStore
}));
Identity_set(ctx);
Admin_registerFunction("NodeStore_dumpTable", dumpTable, ctx, false,
((struct Admin_FunctionArg[]) {
{ .name = "page", .required = 1, .type = "Int" },
}), admin);
Admin_registerFunction("NodeStore_getLink", getLink, ctx, true,
((struct Admin_FunctionArg[]) {
{ .name = "parent", .required = 1, .type = "String" },
{ .name = "linkNum", .required = 1, .type = "Int" },
}), admin);