static String* getExpectedResponse(struct Sockaddr* sa4, int prefix4, int alloc4,
struct Sockaddr* sa6, int prefix6, int alloc6,
struct Allocator* allocator)
{
Assert_true(alloc6 >= prefix6);
Assert_true(alloc4 >= prefix4);
struct Allocator* alloc = Allocator_child(allocator);
Dict* addresses = Dict_new(alloc);
if (sa4) {
uint8_t* addr = NULL;
Assert_true(Sockaddr_getAddress(sa4, &addr) == 4);
String* addrStr = String_newBinary(addr, 4, alloc);
Dict_putString(addresses, String_new("ip4", alloc), addrStr, alloc);
Dict_putInt(addresses, String_new("ip4Prefix", alloc), prefix4, alloc);
Dict_putInt(addresses, String_new("ip4Alloc", alloc), alloc4, alloc);
}
if (sa6) {
uint8_t* addr = NULL;
Assert_true(Sockaddr_getAddress(sa6, &addr) == 16);
String* addrStr = String_newBinary(addr, 16, alloc);
Dict_putString(addresses, String_new("ip6", alloc), addrStr, alloc);
Dict_putInt(addresses, String_new("ip6Prefix", alloc), prefix6, alloc);
Dict_putInt(addresses, String_new("ip6Alloc", alloc), alloc6, alloc);
}
Dict* output = Dict_new(alloc);
Dict_putDict(output, String_new("addresses", alloc), addresses, alloc);
Dict_putString(output, String_new("txid", alloc), String_new("abcd", alloc), alloc);
struct Message* msg = Message_new(0, 512, alloc);
BencMessageWriter_write(output, msg, NULL);
String* outStr = String_newBinary(msg->bytes, msg->length, allocator);
Allocator_free(alloc);
return outStr;
}
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);
}
static void traceStep(struct RouteTracer_Trace* trace, struct Node* next)
{
struct RouteTracer_pvt* ctx = Identity_cast((struct RouteTracer_pvt*)trace->tracer);
if (!next) {
// can't find a next node, stalled.
Timeout_setTimeout(noPeers, trace, 0, trace->tracer->eventBase, trace->pub.alloc);
return;
}
Assert_true(LabelSplicer_routesThrough(trace->target, next->address.path));
trace->lastNodeAsked = next->address.path;
struct RouterModule_Promise* rp =
RouterModule_newMessage(next, 0, ctx->router, trace->pub.alloc);
Dict* message = Dict_new(rp->alloc);
#ifdef Version_4_COMPAT
if (next->version < 5) {
// The node doesn't support the new API so try running a search for
// the bitwise complement of their address to get some peers.
Dict_putString(message, CJDHTConstants_QUERY, CJDHTConstants_QUERY_FN, rp->alloc);
String* notAddr = String_newBinary((char*)next->address.ip6.bytes, 16, rp->alloc);
for (int i = 0; i < 16; i++) {
notAddr->bytes[i] ^= 0xff;
}
Dict_putString(message, CJDHTConstants_TARGET, notAddr, rp->alloc);
log(ctx->logger, trace, "Sending legacy search method because getpeers is unavailable");
} else {
#endif
Dict_putString(message, CJDHTConstants_QUERY, CJDHTConstants_QUERY_GP, rp->alloc);
uint64_t labelForThem = LabelSplicer_unsplice(trace->target, next->address.path);
labelForThem = Endian_hostToBigEndian64(labelForThem);
String* target = String_newBinary((char*)&labelForThem, 8, rp->alloc);
Dict_putString(message, CJDHTConstants_TARGET, target, rp->alloc);
log(ctx->logger, trace, "Sending getpeers request");
#ifdef Version_4_COMPAT
}
#endif
rp->userData = trace;
rp->callback = responseCallback;
RouterModule_sendMessage(rp, message);
}
static int calculateAuth(Dict* message,
String* password,
String* cookieStr,
struct Allocator* alloc)
{
// Calculate the hash of the password.
String* hashHex = String_newBinary(NULL, 64, alloc);
uint8_t passAndCookie[64];
uint32_t cookie = (cookieStr != NULL) ? strtoll(cookieStr->bytes, NULL, 10) : 0;
snprintf((char*) passAndCookie, 64, "%s%u", password->bytes, cookie);
uint8_t hash[32];
crypto_hash_sha256(hash, passAndCookie, CString_strlen((char*) passAndCookie));
Hex_encode((uint8_t*)hashHex->bytes, 64, hash, 32);
Dict_putString(message, String_new("hash", alloc), hashHex, alloc);
Dict_putString(message, String_new("cookie", alloc), cookieStr, alloc);
// serialize the message with the password hash
struct Message* msg = Message_new(0, AdminClient_MAX_MESSAGE_SIZE, alloc);
BencMessageWriter_write(message, msg, NULL);
// calculate the hash of the message with the password hash
crypto_hash_sha256(hash, msg->bytes, msg->length);
// swap the hash of the message with the password hash into the location
// where the password hash was.
Hex_encode((uint8_t*)hashHex->bytes, 64, hash, 32);
return 0;
}
String* VersionList_stringify(struct VersionList* list, struct Allocator* alloc)
{
uint8_t numberSize = 1;
uint32_t max = 0xff;
for (int i = 0; i < (int)list->length; i++) {
while (list->versions[i] >= max) {
numberSize++;
max = max << 8 | 0xff;
}
}
String* out = String_newBinary(NULL, (numberSize * list->length + 1), alloc);
struct Writer* w = ArrayWriter_new(out->bytes, out->len, alloc);
Writer_write(w, &numberSize, 1);
for (int i = 0; i < (int)list->length; i++) {
uint32_t ver = list->versions[i] << ((4-numberSize) * 8);
ver = Endian_hostToBigEndian32(ver);
Writer_write(w, (uint8_t*) &ver, numberSize);
}
Writer_write(w, &numberSize, 1);
return out;
}
static int calculateAuth(Dict* message,
String* password,
String* cookieStr,
struct Allocator* alloc)
{
// Calculate the hash of the password.
String* hashHex = String_newBinary(NULL, 64, alloc);
uint8_t passAndCookie[64];
uint32_t cookie = (cookieStr != NULL) ? strtoll(cookieStr->bytes, NULL, 10) : 0;
snprintf((char*) passAndCookie, 64, "%s%u", password->bytes, cookie);
uint8_t hash[32];
crypto_hash_sha256(hash, passAndCookie, strlen((char*) passAndCookie));
Hex_encode((uint8_t*)hashHex->bytes, 64, hash, 32);
Dict_putString(message, String_new("hash", alloc), hashHex, alloc);
Dict_putString(message, String_new("cookie", alloc), cookieStr, alloc);
// serialize the message with the password hash
uint8_t buffer[AdminClient_MAX_MESSAGE_SIZE];
struct Writer* writer = ArrayWriter_new(buffer, AdminClient_MAX_MESSAGE_SIZE, alloc);
if (StandardBencSerializer_get()->serializeDictionary(writer, message)) {
return -1;
}
int length = writer->bytesWritten;
// calculate the hash of the message with the password hash
crypto_hash_sha256(hash, buffer, length);
// swap the hash of the message with the password hash into the location
// where the password hash was.
Hex_encode((uint8_t*)hashHex->bytes, 64, hash, 32);
return 0;
}
struct SupernodeHunter* SupernodeHunter_new(struct Allocator* allocator,
struct Log* log,
struct EventBase* base,
struct AddrSet* peers,
struct MsgCore* msgCore,
struct Address* myAddress)
{
struct Allocator* alloc = Allocator_child(allocator);
struct SupernodeHunter_pvt* out =
Allocator_calloc(alloc, sizeof(struct SupernodeHunter_pvt), 1);
out->authorizedSnodes = AddrSet_new(alloc);
out->peers = peers;
out->base = base;
out->nodes = AddrSet_new(alloc);
//out->timeSnodeCalled = Time_currentTimeMilliseconds(base);
out->snodeCandidates = AddrSet_new(alloc);
out->log = log;
out->alloc = alloc;
out->msgCore = msgCore;
out->myAddress = myAddress;
out->selfAddrStr = String_newBinary(myAddress->ip6.bytes, 16, alloc);
Identity_set(out);
Timeout_setInterval(pingCycle, out, CYCLE_MS, base, alloc);
return &out->pub;
}
String* EncodingScheme_serialize(struct EncodingScheme* list,
struct Allocator* alloc)
{
Assert_true(EncodingScheme_isSane(list));
// Create the string as the largest that is possible for the list size.
String* out = String_newBinary(NULL, list->count * 6, alloc);
int bits = 0;
int outIndex = 0;
uint64_t block = 0;
for (int listIndex = 0; listIndex < (int)list->count; listIndex++) {
bits += encodeForm(&list->forms[listIndex], &block, bits);
while (bits > 8) {
Assert_true(outIndex < (int)out->len);
out->bytes[outIndex++] = (uint8_t) (block & 0xff);
bits -= 8;
block >>= 8;
}
}
if (bits > 0) {
out->bytes[outIndex++] = (uint8_t) (block & 0xff);
}
out->len = outIndex;
return out;
}
static inline int parseString(const struct Reader* reader,
const struct Allocator* allocator,
String** output)
{
#define BUFF_SZ (1<<8)
#define BUFF_MAX (1<<20)
int curSize = BUFF_SZ;
struct Allocator* localAllocator = Allocator_child(allocator);
uint8_t* buffer = localAllocator->malloc(curSize, localAllocator);
if (readUntil('"', reader) || reader->read(buffer, 1, reader)) {
printf("Unterminated string\n");
localAllocator->free(localAllocator);
return OUT_OF_CONTENT_TO_READ;
}
for (int i = 0; i < BUFF_MAX - 1; i++) {
if (buffer[i] == '\\') {
// \x01 (skip the x)
reader->skip(1, reader);
uint8_t hex[2];
if (reader->read((char*)hex, 2, reader)) {
printf("Unexpected end of input parsing escape sequence\n");
localAllocator->free(localAllocator);
return OUT_OF_CONTENT_TO_READ;
}
int byte = Hex_decodeByte(hex[0], hex[1]);
if (byte == -1) {
printf("Invalid escape \"%c%c\" after \"%.*s\"\n",hex[0],hex[1],i+1,buffer);
localAllocator->free(localAllocator);
return UNPARSABLE;
}
buffer[i] = (uint8_t) byte;
} else if (buffer[i] == '"') {
*output = String_newBinary((char*)buffer, i, allocator);
localAllocator->free(localAllocator);
return 0;
}
if (i == curSize - 1) {
curSize <<= 1;
buffer = localAllocator->realloc(buffer, curSize, localAllocator);
}
if (reader->read(buffer + i + 1, 1, reader)) {
if (i+1 <= 20) {
printf("Unterminated string \"%.*s\"\n", i+1, buffer);
} else {
printf("Unterminated string starting with \"%.*s...\"\n", 20, buffer);
}
localAllocator->free(localAllocator);
return OUT_OF_CONTENT_TO_READ;
}
}
printf("Maximum string length of %d bytes exceeded.\n",BUFF_SZ);
localAllocator->free(localAllocator);
return UNPARSABLE;
#undef BUFF_SZ
#undef BUFF_MAX
}
// Just make sure random crap doesn't crash it.
static void fuzzTest(struct Allocator* parent, struct Random* rand)
{
struct Allocator* alloc = Allocator_child(parent);
String* data = String_newBinary(NULL, Random_uint32(rand) % 1024, alloc);
Random_bytes(rand, (uint8_t*)data->bytes, data->len);
EncodingScheme_deserialize(data, alloc);
Allocator_free(alloc);
}
String* Key_stringify(uint8_t key[32], struct Allocator* alloc)
{
String* out = String_newBinary(NULL, 55, alloc);
Base32_encode((uint8_t*)out->bytes, 53, key, 32);
out->bytes[53] = '.';
out->bytes[54] = 'k';
return out;
}
static void sendMsg(struct MsgCore_pvt* mcp,
Dict* msgDict,
struct Address* addr,
struct Allocator* allocator)
{
struct Allocator* alloc = Allocator_child(allocator);
// Send the encoding scheme definition
Dict_putString(msgDict, CJDHTConstants_ENC_SCHEME, mcp->schemeDefinition, allocator);
// And tell the asker which interface the message came from
int encIdx = EncodingScheme_getFormNum(mcp->scheme, addr->path);
Assert_true(encIdx != EncodingScheme_getFormNum_INVALID);
Dict_putInt(msgDict, CJDHTConstants_ENC_INDEX, encIdx, allocator);
// send the protocol version
Dict_putInt(msgDict, CJDHTConstants_PROTOCOL, Version_CURRENT_PROTOCOL, allocator);
if (!Defined(SUBNODE)) {
String* q = Dict_getStringC(msgDict, "q");
String* sq = Dict_getStringC(msgDict, "sq");
if (q || sq) {
Log_debug(mcp->log, "Send query [%s] to [%s]",
((q) ? q->bytes : sq->bytes),
Address_toString(addr, alloc)->bytes);
String* txid = Dict_getStringC(msgDict, "txid");
Assert_true(txid);
String* newTxid = String_newBinary(NULL, txid->len + 1, alloc);
Bits_memcpy(&newTxid->bytes[1], txid->bytes, txid->len);
newTxid->bytes[0] = '1';
Dict_putStringC(msgDict, "txid", newTxid, alloc);
}
}
struct Message* msg = Message_new(0, 2048, alloc);
BencMessageWriter_write(msgDict, msg, NULL);
//Log_debug(mcp->log, "Sending msg [%s]", Escape_getEscaped(msg->bytes, msg->length, alloc));
// Sanity check (make sure the addr was actually calculated)
Assert_true(addr->ip6.bytes[0] == 0xfc);
struct DataHeader data;
Bits_memset(&data, 0, sizeof(struct DataHeader));
DataHeader_setVersion(&data, DataHeader_CURRENT_VERSION);
DataHeader_setContentType(&data, ContentType_CJDHT);
Message_push(msg, &data, sizeof(struct DataHeader), NULL);
struct RouteHeader route;
Bits_memset(&route, 0, sizeof(struct RouteHeader));
Bits_memcpy(route.ip6, addr->ip6.bytes, 16);
route.version_be = Endian_hostToBigEndian32(addr->protocolVersion);
route.sh.label_be = Endian_hostToBigEndian64(addr->path);
Bits_memcpy(route.publicKey, addr->key, 32);
Message_push(msg, &route, sizeof(struct RouteHeader), NULL);
Iface_send(&mcp->pub.interRouterIf, msg);
}
static void mkNextRequest(struct ReachabilityCollector_pvt* rcp)
{
struct PeerInfo* pi = NULL;
for (int i = 0; i < rcp->piList->length; i++) {
pi = ArrayList_OfPeerInfo_get(rcp->piList, i);
if (!pi->querying) { continue; }
}
if (!pi || !pi->querying) { return; }
rcp->msgOnWire = MsgCore_createQuery(rcp->msgCore, TIMEOUT_MILLISECONDS, rcp->alloc);
rcp->msgOnWire->userData = rcp;
rcp->msgOnWire->cb = onReply;
rcp->msgOnWire->target = Address_clone(&pi->addr, rcp->msgOnWire->alloc);
Dict* d = rcp->msgOnWire->msg = Dict_new(rcp->msgOnWire->alloc);
Dict_putStringCC(d, "q", "gp", rcp->msgOnWire->alloc);
uint64_t label_be = Endian_hostToBigEndian64(pi->pathToCheck);
Dict_putStringC(d, "tar",
String_newBinary((uint8_t*) &label_be, 8, rcp->msgOnWire->alloc), rcp->msgOnWire->alloc);
BoilerplateResponder_addBoilerplate(rcp->br, d, &pi->addr, rcp->msgOnWire->alloc);
}
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);
}
}
List* EncodingScheme_asList(struct EncodingScheme* list, struct Allocator* alloc)
{
Assert_true(EncodingScheme_isSane(list));
String* prefixLen = String_new("prefixLen", alloc);
String* bitCount = String_new("bitCount", alloc);
String* prefix = String_new("prefix", alloc);
List* scheme = NULL;
for (int i = 0; i < (int)list->count; i++) {
Dict* form = Dict_new(alloc);
Dict_putInt(form, prefixLen, list->forms[i].prefixLen, alloc);
Dict_putInt(form, bitCount, list->forms[i].bitCount, alloc);
String* pfx = String_newBinary(NULL, 8, alloc);
uint32_t prefix_be = Endian_hostToBigEndian32(list->forms[i].prefix);
Hex_encode(pfx->bytes, 8, (uint8_t*)&prefix_be, 4);
Dict_putString(form, prefix, pfx, alloc);
scheme = List_addDict(scheme, form, alloc);
}
return scheme;
}
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;
}
static void pingResponse(struct RouterModule_Promise* promise,
uint32_t lag,
struct Address* from,
Dict* responseDict)
{
struct Ping* ping = Identity_check((struct Ping*)promise->userData);
struct Allocator* tempAlloc = promise->alloc;
Dict* resp = Dict_new(tempAlloc);
String* versionBin = Dict_getString(responseDict, CJDHTConstants_VERSION);
if (versionBin && versionBin->len == 20) {
String* versionStr = String_newBinary(NULL, 40, tempAlloc);
Hex_encode(versionStr->bytes, 40, versionBin->bytes, 20);
Dict_putString(resp, String_CONST("version"), versionStr, tempAlloc);
} else {
Dict_putString(resp, String_CONST("version"), String_CONST("unknown"), tempAlloc);
}
String* result = (responseDict) ? String_CONST("pong") : String_CONST("timeout");
Dict_putString(resp, String_CONST("result"), result, tempAlloc);
int64_t* protocolVersion = Dict_getInt(responseDict, CJDHTConstants_PROTOCOL);
if (protocolVersion) {
Dict_putInt(resp, String_CONST("protocol"), *protocolVersion, tempAlloc);
}
Dict_putInt(resp, String_CONST("ms"), lag, tempAlloc);
if (from) {
uint8_t fromStr[60] = "";
Address_print(fromStr, from);
Dict_putString(resp, String_CONST("from"), String_new(fromStr, tempAlloc), tempAlloc);
}
Admin_sendMessage(resp, ping->txid, ping->ctx->admin);
}
struct Context* ctx,
String* cookie,
AdminClient_RespHandler callback)
{
struct Allocator* reqAlloc = Allocator_child(promise->alloc);
struct Request* req = Allocator_clone(reqAlloc, (&(struct Request) {
.alloc = reqAlloc,
.ctx = ctx,
.promise = promise
}));
Identity_set(req);
int idx = Map_OfRequestByHandle_put(&req, &ctx->outstandingRequests);
req->handle = ctx->outstandingRequests.handles[idx];
String* id = String_newBinary(NULL, 8, req->alloc);
Hex_encode(id->bytes, 8, (int8_t*) &req->handle, 4);
Dict_putString(messageDict, String_CONST("txid"), id, req->alloc);
if (cookie) {
Assert_true(!calculateAuth(messageDict, ctx->password, cookie, req->alloc));
}
struct Allocator* child = Allocator_child(req->alloc);
struct Message* msg = Message_new(0, AdminClient_MAX_MESSAGE_SIZE + 256, child);
BencMessageWriter_write(messageDict, msg, NULL);
req->timeoutAlloc = Allocator_child(req->alloc);
req->timeout = Timeout_setTimeout(timeout,
req,
ctx->pub.millisecondsToWait,
/**
* For serializing and parsing responses to getPeers and search requests.
*/
struct Address_List* ReplySerializer_parse(struct Address* fromNode,
Dict* result,
struct Log* log,
bool splicePath,
struct Allocator* alloc)
{
String* nodes = Dict_getString(result, CJDHTConstants_NODES);
if (!nodes) { return NULL; }
if (nodes->len == 0 || nodes->len % Address_SERIALIZED_SIZE != 0) {
Log_debug(log, "Dropping unrecognized reply");
return NULL;
}
struct VersionList* versions = NULL;
String* versionsStr = Dict_getString(result, CJDHTConstants_NODE_PROTOCOLS);
if (versionsStr) {
versions = VersionList_parse(versionsStr, alloc);
}
if (!versions || versions->length != (nodes->len / Address_SERIALIZED_SIZE)) {
Log_debug(log, "Reply with missing or invalid versions");
return NULL;
}
struct Address_List* out = Address_List_new(versions->length, alloc);
uint32_t j = 0;
for (uint32_t i = 0; nodes && i < nodes->len; i += Address_SERIALIZED_SIZE) {
struct Address addr = { .path = 0 };
Address_parse(&addr, (uint8_t*) &nodes->bytes[i]);
addr.protocolVersion = versions->versions[i / Address_SERIALIZED_SIZE];
// calculate the ipv6
Address_getPrefix(&addr);
if (splicePath) {
// We need to splice the given address on to the end of the
// address of the node which gave it to us.
uint64_t path = LabelSplicer_splice(addr.path, fromNode->path);
if (path == UINT64_MAX) {
/* common, lots of noise
uint8_t discovered[60];
uint8_t fromAddr[60];
Address_print(discovered, &addr);
Address_print(fromAddr, fromNode);
Log_debug(log,
"Dropping response [%s] from [%s] because route could not be spliced",
discovered, fromAddr);*/
continue;
}
addr.path = path;
}
/*#ifdef Log_DEBUG
uint8_t printedAddr[60];
Address_print(printedAddr, &addr);
Log_debug(log, "discovered node [%s]", printedAddr);
#endif*/
Address_getPrefix(&addr);
if (!AddressCalc_validAddress(addr.ip6.bytes)) {
struct Allocator* tmpAlloc = Allocator_child(alloc);
String* printed = Address_toString(&addr, tmpAlloc);
uint8_t ipPrinted[40];
Address_printIp(ipPrinted, &addr);
Log_debug(log, "Was told garbage addr [%s] [%s]", printed->bytes, ipPrinted);
Allocator_free(tmpAlloc);
// This should never happen, badnode.
continue;
}
Bits_memcpy(&out->elems[j++], &addr, sizeof(struct Address));
}
out->length = j;
return out;
}
void ReplySerializer_serialize(struct Address_List* addrs,
Dict* out,
struct Address* convertDirectorFor,
struct Allocator* alloc)
{
if (!addrs->length) { return; }
String* nodes = String_newBinary(NULL, addrs->length * Address_SERIALIZED_SIZE, alloc);
struct VersionList* versions = VersionList_new(addrs->length, alloc);
for (int i = 0; i < addrs->length; i++) {
versions->versions[i] = addrs->elems[i].protocolVersion;
if (!convertDirectorFor) {
Address_serialize(&nodes->bytes[i * Address_SERIALIZED_SIZE], &addrs->elems[i]);
} else {
struct Address addr;
Bits_memcpy(&addr, &addrs->elems[i], sizeof(struct Address));
addr.path = NumberCompress_getLabelFor(addr.path, convertDirectorFor->path);
Address_serialize(&nodes->bytes[i * Address_SERIALIZED_SIZE], &addr);
}
}
Dict_putStringC(out, "n", nodes, alloc);
Dict_putStringC(out, "np", VersionList_stringify(versions, alloc), alloc);
}
int main(int argc, char** argv)
{
#ifdef Log_KEYS
fprintf(stderr, "Log_LEVEL = KEYS, EXPECT TO SEE PRIVATE KEYS IN YOUR LOGS!\n");
#endif
Assert_true(argc > 0);
struct Except* eh = NULL;
// Allow it to allocate 4MB
struct Allocator* allocator = MallocAllocator_new(1<<22);
struct Random* rand = Random_new(allocator, NULL, eh);
struct EventBase* eventBase = EventBase_new(allocator);
if (argc == 2) {
// one argument
if (strcmp(argv[1], "--help") == 0) {
return usage(argv[0]);
} else if (strcmp(argv[1], "--genconf") == 0) {
return genconf(rand);
} else if (strcmp(argv[1], "--pidfile") == 0) {
// Performed after reading the configuration
} else if (strcmp(argv[1], "--reconf") == 0) {
// Performed after reading the configuration
} else if (strcmp(argv[1], "--bench") == 0) {
return benchmark();
} else if (strcmp(argv[1], "--version") == 0) {
//printf("Version ID: %s\n", RouterModule_gitVersion());
return 0;
} else {
fprintf(stderr, "%s: unrecognized option '%s'\n", argv[0], argv[1]);
fprintf(stderr, "Try `%s --help' for more information.\n", argv[0]);
return -1;
}
} else if (argc > 2) {
// more than one argument?
fprintf(stderr, "%s: too many arguments\n", argv[0]);
fprintf(stderr, "Try `%s --help' for more information.\n", argv[0]);
return -1;
}
if (isatty(STDIN_FILENO)) {
// We were started from a terminal
// The chances an user wants to type in a configuration
// bij hand are pretty slim so we show him the usage
return usage(argv[0]);
} else {
// We assume stdin is a configuration file and that we should
// start routing
}
struct Reader* stdinReader = FileReader_new(stdin, allocator);
Dict config;
if (JsonBencSerializer_get()->parseDictionary(stdinReader, allocator, &config)) {
fprintf(stderr, "Failed to parse configuration.\n");
return -1;
}
struct Writer* logWriter = FileWriter_new(stdout, allocator);
struct Log* logger = WriterLog_new(logWriter, allocator);
// --------------------- Setup Pipes to Angel --------------------- //
int pipeToAngel[2];
int pipeFromAngel[2];
if (Pipe_createUniPipe(pipeToAngel) || Pipe_createUniPipe(pipeFromAngel)) {
Except_raise(eh, -1, "Failed to create pipes to angel [%s]", Errno_getString());
}
char pipeToAngelStr[8];
snprintf(pipeToAngelStr, 8, "%d", pipeToAngel[0]);
char pipeFromAngelStr[8];
snprintf(pipeFromAngelStr, 8, "%d", pipeFromAngel[1]);
char* args[] = { "angel", pipeToAngelStr, pipeFromAngelStr, NULL };
// --------------------- Spawn Angel --------------------- //
String* privateKey = Dict_getString(&config, String_CONST("privateKey"));
String* corePath = getCorePath(allocator);
if (!corePath) {
Except_raise(eh, -1, "Can't find a usable cjdns core executable, "
"make sure it is in the same directory as cjdroute");
}
if (!privateKey) {
Except_raise(eh, -1, "Need to specify privateKey.");
}
Log_info(logger, "Forking angel to background.");
Process_spawn(corePath->bytes, args);
// --------------------- Get Admin --------------------- //
Dict* configAdmin = Dict_getDict(&config, String_CONST("admin"));
String* adminPass = Dict_getString(configAdmin, String_CONST("password"));
String* adminBind = Dict_getString(configAdmin, String_CONST("bind"));
if (!adminPass) {
adminPass = String_newBinary(NULL, 32, allocator);
Random_base32(rand, (uint8_t*) adminPass->bytes, 32);
adminPass->len = strlen(adminPass->bytes);
}
if (!adminBind) {
adminBind = String_new("127.0.0.1:0", allocator);
}
// --------------------- Get user for angel to setuid() ---------------------- //
String* securityUser = NULL;
List* securityConf = Dict_getList(&config, String_CONST("security"));
for (int i = 0; i < List_size(securityConf); i++) {
securityUser = Dict_getString(List_getDict(securityConf, i), String_CONST("setuser"));
if (securityUser) {
int64_t* ea = Dict_getInt(List_getDict(securityConf, i), String_CONST("exemptAngel"));
if (ea && *ea) {
securityUser = NULL;
}
break;
}
}
// --------------------- Pre-Configure Angel ------------------------- //
Dict* preConf = Dict_new(allocator);
Dict* adminPreConf = Dict_new(allocator);
Dict_putDict(preConf, String_CONST("admin"), adminPreConf, allocator);
Dict_putString(adminPreConf, String_CONST("core"), corePath, allocator);
Dict_putString(preConf, String_CONST("privateKey"), privateKey, allocator);
Dict_putString(adminPreConf, String_CONST("bind"), adminBind, allocator);
Dict_putString(adminPreConf, String_CONST("pass"), adminPass, allocator);
if (securityUser) {
Dict_putString(adminPreConf, String_CONST("user"), securityUser, allocator);
}
#define CONFIG_BUFF_SIZE 1024
uint8_t buff[CONFIG_BUFF_SIZE] = {0};
struct Writer* toAngelWriter = ArrayWriter_new(buff, CONFIG_BUFF_SIZE - 1, allocator);
if (StandardBencSerializer_get()->serializeDictionary(toAngelWriter, preConf)) {
Except_raise(eh, -1, "Failed to serialize pre-configuration");
}
write(pipeToAngel[1], buff, toAngelWriter->bytesWritten(toAngelWriter));
Log_keys(logger, "Sent [%s] to angel process.", buff);
// --------------------- Get Response from Angel --------------------- //
uint32_t amount = Waiter_getData(buff, CONFIG_BUFF_SIZE, pipeFromAngel[0], eventBase, eh);
Dict responseFromAngel;
struct Reader* responseFromAngelReader = ArrayReader_new(buff, amount, allocator);
if (StandardBencSerializer_get()->parseDictionary(responseFromAngelReader,
allocator,
&responseFromAngel))
{
Except_raise(eh, -1, "Failed to parse pre-configuration response [%s]", buff);
}
// --------------------- Get Admin Addr/Port/Passwd --------------------- //
Dict* responseFromAngelAdmin = Dict_getDict(&responseFromAngel, String_CONST("admin"));
adminBind = Dict_getString(responseFromAngelAdmin, String_CONST("bind"));
if (!adminBind) {
Except_raise(eh, -1, "didn't get address and port back from angel");
}
struct Sockaddr_storage adminAddr;
if (Sockaddr_parse(adminBind->bytes, &adminAddr)) {
Except_raise(eh, -1, "Unable to parse [%s] as an ip address port, eg: 127.0.0.1:11234",
adminBind->bytes);
}
// sanity check
Assert_true(EventBase_eventCount(eventBase) == 0);
// --------------------- Configuration ------------------------- //
Configurator_config(&config,
&adminAddr.addr,
adminPass,
eventBase,
logger,
allocator);
return 0;
}
int main(int argc, char** argv)
{
#ifdef Log_KEYS
fprintf(stderr, "Log_LEVEL = KEYS, EXPECT TO SEE PRIVATE KEYS IN YOUR LOGS!\n");
#endif
if (argc < 2) {
// Fall through.
} else if (!CString_strcmp("angel", argv[1])) {
return AngelInit_main(argc, argv);
} else if (!CString_strcmp("core", argv[1])) {
return Core_main(argc, argv);
}
Assert_ifParanoid(argc > 0);
struct Except* eh = NULL;
// Allow it to allocate 8MB
struct Allocator* allocator = MallocAllocator_new(1<<23);
struct Random* rand = Random_new(allocator, NULL, eh);
struct EventBase* eventBase = EventBase_new(allocator);
if (argc == 2) {
// one argument
if ((CString_strcmp(argv[1], "--help") == 0) || (CString_strcmp(argv[1], "-h") == 0)) {
return usage(allocator, argv[0]);
} else if (CString_strcmp(argv[1], "--genconf") == 0) {
return genconf(rand);
} else if (CString_strcmp(argv[1], "--pidfile") == 0) {
// deprecated
fprintf(stderr, "'--pidfile' option is deprecated.\n");
return 0;
} else if (CString_strcmp(argv[1], "--reconf") == 0) {
// Performed after reading the configuration
} else if (CString_strcmp(argv[1], "--bench") == 0) {
return benchmark();
} else if ((CString_strcmp(argv[1], "--version") == 0)
|| (CString_strcmp(argv[1], "-v") == 0))
{
printf("Cjdns protocol version: %d\n", Version_CURRENT_PROTOCOL);
return 0;
} else if (CString_strcmp(argv[1], "--cleanconf") == 0) {
// Performed after reading configuration
} else if (CString_strcmp(argv[1], "--nobg") == 0) {
// Performed while reading configuration
} else {
fprintf(stderr, "%s: unrecognized option '%s'\n", argv[0], argv[1]);
fprintf(stderr, "Try `%s --help' for more information.\n", argv[0]);
return -1;
}
} else if (argc > 2) {
// more than one argument?
fprintf(stderr, "%s: too many arguments [%s]\n", argv[0], argv[1]);
fprintf(stderr, "Try `%s --help' for more information.\n", argv[0]);
// because of '--pidfile $filename'?
if (CString_strcmp(argv[1], "--pidfile") == 0)
{
fprintf(stderr, "\n'--pidfile' option is deprecated.\n");
}
return -1;
}
if (isatty(STDIN_FILENO)) {
// We were started from a terminal
// The chances an user wants to type in a configuration
// bij hand are pretty slim so we show him the usage
return usage(allocator, argv[0]);
} else {
// We assume stdin is a configuration file and that we should
// start routing
}
struct Reader* stdinReader = FileReader_new(stdin, allocator);
Dict config;
if (JsonBencSerializer_get()->parseDictionary(stdinReader, allocator, &config)) {
fprintf(stderr, "Failed to parse configuration.\n");
return -1;
}
if (argc == 2 && CString_strcmp(argv[1], "--cleanconf") == 0) {
struct Writer* stdoutWriter = FileWriter_new(stdout, allocator);
JsonBencSerializer_get()->serializeDictionary(stdoutWriter, &config);
printf("\n");
return 0;
}
int forceNoBackground = 0;
if (argc == 2 && CString_strcmp(argv[1], "--nobg") == 0) {
forceNoBackground = 1;
}
struct Writer* logWriter = FileWriter_new(stdout, allocator);
struct Log* logger = WriterLog_new(logWriter, allocator);
// --------------------- Get Admin --------------------- //
Dict* configAdmin = Dict_getDict(&config, String_CONST("admin"));
String* adminPass = Dict_getString(configAdmin, String_CONST("password"));
String* adminBind = Dict_getString(configAdmin, String_CONST("bind"));
if (!adminPass) {
adminPass = String_newBinary(NULL, 32, allocator);
Random_base32(rand, (uint8_t*) adminPass->bytes, 32);
adminPass->len = CString_strlen(adminPass->bytes);
}
if (!adminBind) {
Except_throw(eh, "You must specify admin.bind in the cjdroute.conf file.");
}
// --------------------- Welcome to cjdns ---------------------- //
char* archInfo = ArchInfo_describe(ArchInfo_detect(), allocator);
char* sysInfo = SysInfo_describe(SysInfo_detect(), allocator);
Log_info(logger, "Cjdns %s %s", archInfo, sysInfo);
// --------------------- Check for running instance --------------------- //
Log_info(logger, "Checking for running instance...");
checkRunningInstance(allocator, eventBase, adminBind, adminPass, logger, eh);
// --------------------- Setup Pipes to Angel --------------------- //
char angelPipeName[64] = "client-angel-";
Random_base32(rand, (uint8_t*)angelPipeName+13, 31);
Assert_ifParanoid(EventBase_eventCount(eventBase) == 0);
struct Pipe* angelPipe = Pipe_named(angelPipeName, eventBase, eh, allocator);
Assert_ifParanoid(EventBase_eventCount(eventBase) == 2);
angelPipe->logger = logger;
char* args[] = { "angel", angelPipeName, NULL };
// --------------------- Spawn Angel --------------------- //
String* privateKey = Dict_getString(&config, String_CONST("privateKey"));
char* corePath = Process_getPath(allocator);
if (!corePath) {
Except_throw(eh, "Can't find a usable cjdns core executable, "
"make sure it is in the same directory as cjdroute");
}
if (!privateKey) {
Except_throw(eh, "Need to specify privateKey.");
}
Log_info(logger, "Forking angel to background.");
Process_spawn(corePath, args, eventBase, allocator);
// --------------------- Get user for angel to setuid() ---------------------- //
String* securityUser = NULL;
List* securityConf = Dict_getList(&config, String_CONST("security"));
for (int i = 0; securityConf && i < List_size(securityConf); i++) {
securityUser = Dict_getString(List_getDict(securityConf, i), String_CONST("setuser"));
if (securityUser) {
int64_t* ea = Dict_getInt(List_getDict(securityConf, i), String_CONST("exemptAngel"));
if (ea && *ea) {
securityUser = NULL;
}
break;
}
}
// --------------------- Pre-Configure Angel ------------------------- //
Dict* preConf = Dict_new(allocator);
Dict* adminPreConf = Dict_new(allocator);
Dict_putDict(preConf, String_CONST("admin"), adminPreConf, allocator);
Dict_putString(adminPreConf, String_CONST("core"), String_new(corePath, allocator), allocator);
Dict_putString(preConf, String_CONST("privateKey"), privateKey, allocator);
Dict_putString(adminPreConf, String_CONST("bind"), adminBind, allocator);
Dict_putString(adminPreConf, String_CONST("pass"), adminPass, allocator);
if (securityUser) {
Dict_putString(adminPreConf, String_CONST("user"), securityUser, allocator);
}
Dict* logging = Dict_getDict(&config, String_CONST("logging"));
if (logging) {
Dict_putDict(preConf, String_CONST("logging"), logging, allocator);
}
struct Message* toAngelMsg = Message_new(0, 1024, allocator);
BencMessageWriter_write(preConf, toAngelMsg, eh);
Interface_sendMessage(&angelPipe->iface, toAngelMsg);
Log_debug(logger, "Sent [%d] bytes to angel process", toAngelMsg->length);
// --------------------- Get Response from Angel --------------------- //
struct Message* fromAngelMsg =
InterfaceWaiter_waitForData(&angelPipe->iface, eventBase, allocator, eh);
Dict* responseFromAngel = BencMessageReader_read(fromAngelMsg, allocator, eh);
// --------------------- Get Admin Addr/Port/Passwd --------------------- //
Dict* responseFromAngelAdmin = Dict_getDict(responseFromAngel, String_CONST("admin"));
adminBind = Dict_getString(responseFromAngelAdmin, String_CONST("bind"));
if (!adminBind) {
Except_throw(eh, "didn't get address and port back from angel");
}
struct Sockaddr_storage adminAddr;
if (Sockaddr_parse(adminBind->bytes, &adminAddr)) {
Except_throw(eh, "Unable to parse [%s] as an ip address port, eg: 127.0.0.1:11234",
adminBind->bytes);
}
// sanity check, Pipe_named() creates 2 events, see above.
Assert_ifParanoid(EventBase_eventCount(eventBase) == 2);
// --------------------- Configuration ------------------------- //
Configurator_config(&config,
&adminAddr.addr,
adminPass,
eventBase,
logger,
allocator);
// --------------------- noBackground ------------------------ //
int64_t* noBackground = Dict_getInt(&config, String_CONST("noBackground"));
if (forceNoBackground || (noBackground && *noBackground)) {
EventBase_beginLoop(eventBase);
}
//Allocator_free(allocator);
return 0;
}
static Iface_DEFUN incoming(struct Message* msg, struct Iface* interRouterIf)
{
struct MsgCore_pvt* mcp =
Identity_containerOf(interRouterIf, struct MsgCore_pvt, pub.interRouterIf);
struct Address addr = { .padding = 0 };
struct RouteHeader* hdr = (struct RouteHeader*) msg->bytes;
Message_shift(msg, -(RouteHeader_SIZE + DataHeader_SIZE), NULL);
Bits_memcpy(addr.ip6.bytes, hdr->ip6, 16);
Bits_memcpy(addr.key, hdr->publicKey, 32);
addr.protocolVersion = Endian_bigEndianToHost32(hdr->version_be);
addr.path = Endian_bigEndianToHost64(hdr->sh.label_be);
Dict* content = NULL;
uint8_t* msgBytes = msg->bytes;
int length = msg->length;
//Log_debug(mcp->log, "Receive msg [%s] from [%s]",
// Escape_getEscaped(msg->bytes, msg->length, msg->alloc),
// Address_toString(&addr, msg->alloc)->bytes);
//
BencMessageReader_readNoExcept(msg, msg->alloc, &content);
if (!content) {
char* esc = Escape_getEscaped(msgBytes, length, msg->alloc);
Log_debug(mcp->log, "DROP Malformed message [%s]", esc);
return NULL;
}
int64_t* verP = Dict_getIntC(content, "p");
if (!verP) {
Log_debug(mcp->log, "DROP Message without version");
return NULL;
}
addr.protocolVersion = *verP;
String* q = Dict_getStringC(content, "q");
if (!Defined(SUBNODE)) {
String* txid = Dict_getStringC(content, "txid");
Assert_true(txid);
if (q) {
if (txid->bytes[0] == '0') {
Log_debug(mcp->log, "DROP query which begins with 0 and is for old pathfinder");
return NULL;
}
} else {
if (txid->bytes[0] != '1') {
Log_debug(mcp->log, "DROP reply which does not begin with 1");
return NULL;
}
String* newTxid = String_newBinary(NULL, txid->len - 1, msg->alloc);
Bits_memcpy(newTxid->bytes, &txid->bytes[1], txid->len - 1);
Dict_putStringC(content, "txid", newTxid, msg->alloc);
txid = newTxid;
}
}
if (q) {
return queryMsg(mcp, content, &addr, msg);
} else {
return replyMsg(mcp, content, &addr, msg);
}
}
struct MsgCore* MsgCore_new(struct EventBase* base,
struct Random* rand,
struct Allocator* allocator,
struct Log* log,
struct EncodingScheme* scheme)
{
struct Allocator* alloc = Allocator_child(allocator);
struct MsgCore_pvt* mcp = Allocator_calloc(alloc, sizeof(struct MsgCore_pvt), 1);
Identity_set(mcp);
mcp->pub.interRouterIf.send = incoming;
mcp->qh = ArrayList_OfQueryHandlers_new(alloc);
mcp->pinger = Pinger_new(base, rand, log, alloc);
mcp->log = log;
mcp->scheme = scheme;
mcp->schemeDefinition = EncodingScheme_serialize(scheme, alloc);
return &mcp->pub;
}
static void pingCycle(void* vsn)
{
struct SupernodeHunter_pvt* snp = Identity_check((struct SupernodeHunter_pvt*) vsn);
if (snp->pub.snodeIsReachable) { return; }
if (!snp->authorizedSnodes->length) { return; }
if (!snp->peers->length) { return; }
Log_debug(snp->log, "\n\nping cycle\n\n");
// We're not handling replies...
struct MsgCore_Promise* qp = MsgCore_createQuery(snp->msgCore, 0, snp->alloc);
struct Query* q = Allocator_calloc(qp->alloc, sizeof(struct Query), 1);
Identity_set(q);
q->snp = snp;
q->sendTime = Time_currentTimeMilliseconds(snp->base);
Dict* msg = qp->msg = Dict_new(qp->alloc);
qp->cb = onReply;
qp->userData = q;
bool isGetPeers = snp->nodeListIndex & 1;
int idx = snp->nodeListIndex++ >> 1;
for (;;) {
if (idx < snp->peers->length) {
qp->target = AddrSet_get(snp->peers, idx);
break;
}
idx -= snp->peers->length;
if (idx < snp->nodes->length) {
qp->target = AddrSet_get(snp->nodes, idx);
break;
}
snp->snodeAddrIdx++;
idx -= snp->nodes->length;
}
struct Address* snode =
AddrSet_get(snp->authorizedSnodes, snp->snodeAddrIdx % snp->authorizedSnodes->length);
if (Address_isSameIp(snode, qp->target)) {
// Supernode is a peer...
AddrSet_add(snp->snodeCandidates, qp->target);
}
if (snp->snodeCandidates->length) {
qp->target = AddrSet_get(snp->snodeCandidates, snp->snodeCandidates->length - 1);
Log_debug(snp->log, "Sending getRoute to snode %s",
Address_toString(qp->target, qp->alloc)->bytes);
Dict_putStringCC(msg, "sq", "gr", qp->alloc);
Dict_putStringC(msg, "src", snp->selfAddrStr, qp->alloc);
String* target = String_newBinary(qp->target->ip6.bytes, 16, qp->alloc);
Dict_putStringC(msg, "tar", target, qp->alloc);
q->isGetRoute = true;
return;
}
if (isGetPeers) {
Log_debug(snp->log, "Sending getPeers to %s",
Address_toString(qp->target, qp->alloc)->bytes);
Dict_putStringCC(msg, "q", "gp", qp->alloc);
Dict_putStringC(msg, "tar", String_newBinary("\0\0\0\0\0\0\0\1", 8, qp->alloc), qp->alloc);
} else {
q->searchTar = Address_clone(snode, qp->alloc);
Log_debug(snp->log, "Sending findNode to %s",
Address_toString(qp->target, qp->alloc)->bytes);
Dict_putStringCC(msg, "q", "fn", qp->alloc);
Dict_putStringC(msg, "tar", String_newBinary(snode->ip6.bytes, 16, qp->alloc), qp->alloc);
}
}
static void handleRequestFromChild(struct Admin* admin,
uint8_t buffer[MAX_API_REQUEST_SIZE],
size_t amount,
struct Allocator* allocator)
{
struct Reader* reader = ArrayReader_new(buffer + TXID_LEN, amount - TXID_LEN, allocator);
Dict message;
if (StandardBencSerializer_get()->parseDictionary(reader, allocator, &message)) {
Log_info(admin->logger, "Got unparsable data from admin interface.");
return;
}
String* query = Dict_getString(&message, CJDHTConstants_QUERY);
if (!query) {
Log_info(admin->logger, "Got a non-query from admin interface.");
return;
}
// txid becomes the user supplied txid combined with the inter-process txid.
String* userTxid = Dict_getString(&message, TXID);
String* txid =
String_newBinary((char*)buffer, ((userTxid) ? userTxid->len : 0) + TXID_LEN, allocator);
if (userTxid) {
Bits_memcpy(txid->bytes + TXID_LEN, userTxid->bytes, userTxid->len);
}
// If they're asking for a cookie then lets give them one.
String* cookie = String_CONST("cookie");
if (String_equals(query, cookie)) {
Dict* d = Dict_new(allocator);
char bytes[32];
snprintf(bytes, 32, "%u", (uint32_t) Time_currentTimeSeconds(admin->eventBase));
String* theCookie = &(String) { .len = strlen(bytes), .bytes = bytes };
Dict_putString(d, cookie, theCookie, allocator);
Admin_sendMessage(d, txid, admin);
return;
}
// If this is a permitted query, make sure the cookie is right.
String* auth = String_CONST("auth");
bool authed = false;
if (String_equals(query, auth)) {
if (!authValid(&message, buffer + TXID_LEN, reader->bytesRead(reader), admin)) {
Dict* d = Dict_new(allocator);
Dict_putString(d, String_CONST("error"), String_CONST("Auth failed."), allocator);
Admin_sendMessage(d, txid, admin);
return;
}
query = Dict_getString(&message, String_CONST("aq"));
authed = true;
}
Dict* args = Dict_getDict(&message, String_CONST("args"));
bool noFunctionsCalled = true;
for (int i = 0; i < admin->functionCount; i++) {
if (String_equals(query, admin->functions[i].name)
&& (authed || !admin->functions[i].needsAuth))
{
if (checkArgs(args, &admin->functions[i], txid, admin)) {
admin->functions[i].call(args, admin->functions[i].context, txid);
}
noFunctionsCalled = false;
}
}
if (noFunctionsCalled) {
Dict* d = Dict_new(allocator);
Dict_putString(d,
String_CONST("error"),
String_CONST("No functions matched your request."),
allocator);
Dict* functions = Dict_new(allocator);
for (int i = 0; i < admin->functionCount; i++) {
Dict_putDict(functions, admin->functions[i].name, admin->functions[i].args, allocator);
}
if (functions) {
Dict_putDict(d, String_CONST("availableFunctions"), functions, allocator);
}
Admin_sendMessage(d, txid, admin);
return;
}
return;
}
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);
}
/**
* Expects [ struct LLAddress ][ beacon ]
*/
static Iface_DEFUN handleBeacon(struct Message* msg, struct InterfaceController_Iface_pvt* ici)
{
struct InterfaceController_pvt* ic = ici->ic;
if (!ici->beaconState) {
// accepting beacons disabled.
Log_debug(ic->logger, "[%s] Dropping beacon because beaconing is disabled",
ici->name->bytes);
return NULL;
}
if (msg->length < Headers_Beacon_SIZE) {
Log_debug(ic->logger, "[%s] Dropping runt beacon", ici->name->bytes);
return NULL;
}
struct Sockaddr* lladdrInmsg = (struct Sockaddr*) msg->bytes;
// clear the bcast flag
lladdrInmsg->flags = 0;
Message_shift(msg, -lladdrInmsg->addrLen, NULL);
struct Headers_Beacon beacon;
Message_pop(msg, &beacon, Headers_Beacon_SIZE, NULL);
if (Defined(Log_DEBUG)) {
char* content = Hex_print(&beacon, Headers_Beacon_SIZE, msg->alloc);
Log_debug(ici->ic->logger, "RECV BEACON CONTENT[%s]", content);
}
struct Address addr;
Bits_memset(&addr, 0, sizeof(struct Address));
Bits_memcpy(addr.key, beacon.publicKey, 32);
addr.protocolVersion = Endian_bigEndianToHost32(beacon.version_be);
Address_getPrefix(&addr);
String* printedAddr = NULL;
if (Defined(Log_DEBUG)) {
printedAddr = Address_toString(&addr, msg->alloc);
}
if (addr.ip6.bytes[0] != 0xfc || !Bits_memcmp(ic->ca->publicKey, addr.key, 32)) {
Log_debug(ic->logger, "handleBeacon invalid key [%s]", printedAddr->bytes);
return NULL;
}
if (!Version_isCompatible(addr.protocolVersion, Version_CURRENT_PROTOCOL)) {
if (Defined(Log_DEBUG)) {
Log_debug(ic->logger, "[%s] DROP beacon from [%s] which was version [%d] "
"our version is [%d] making them incompatable", ici->name->bytes,
printedAddr->bytes, addr.protocolVersion, Version_CURRENT_PROTOCOL);
}
return NULL;
}
String* beaconPass = String_newBinary(beacon.password, Headers_Beacon_PASSWORD_LEN, msg->alloc);
int epIndex = Map_EndpointsBySockaddr_indexForKey(&lladdrInmsg, &ici->peerMap);
if (epIndex > -1) {
// The password might have changed!
struct Peer* ep = ici->peerMap.values[epIndex];
CryptoAuth_setAuth(beaconPass, NULL, ep->caSession);
return NULL;
}
struct Allocator* epAlloc = Allocator_child(ici->alloc);
struct Peer* ep = Allocator_calloc(epAlloc, sizeof(struct Peer), 1);
struct Sockaddr* lladdr = Sockaddr_clone(lladdrInmsg, epAlloc);
ep->alloc = epAlloc;
ep->ici = ici;
ep->lladdr = lladdr;
int setIndex = Map_EndpointsBySockaddr_put(&lladdr, &ep, &ici->peerMap);
ep->handle = ici->peerMap.handles[setIndex];
ep->isIncomingConnection = true;
Bits_memcpy(&ep->addr, &addr, sizeof(struct Address));
Identity_set(ep);
Allocator_onFree(epAlloc, closeInterface, ep);
ep->peerLink = PeerLink_new(ic->eventBase, epAlloc);
ep->caSession = CryptoAuth_newSession(ic->ca, epAlloc, beacon.publicKey, false, "outer");
CryptoAuth_setAuth(beaconPass, NULL, ep->caSession);
ep->switchIf.send = sendFromSwitch;
if (SwitchCore_addInterface(ic->switchCore, &ep->switchIf, epAlloc, &ep->addr.path)) {
Log_debug(ic->logger, "handleBeacon() SwitchCore out of space");
Allocator_free(epAlloc);
return NULL;
}
// We want the node to immedietly be pinged but we don't want it to appear unresponsive because
// the pinger will only ping every (PING_INTERVAL * 8) so we set timeOfLastMessage to
// (now - pingAfterMilliseconds - 1) so it will be considered a "lazy node".
ep->timeOfLastMessage =
Time_currentTimeMilliseconds(ic->eventBase) - ic->pingAfterMilliseconds - 1;
Log_info(ic->logger, "Added peer [%s] from beacon",
Address_toString(&ep->addr, msg->alloc)->bytes);
// This should be safe because this is an outgoing request and we're sure the node will not
// be relocated by moveEndpointIfNeeded()
sendPeer(0xffffffff, PFChan_Core_PEER, ep);
return NULL;
}
static void handleRequestFromChild(struct Admin* admin,
union Admin_TxidPrefix* txid_prefix,
Dict* message,
uint8_t* buffer,
size_t amount,
struct Allocator* allocator)
{
String* query = Dict_getString(message, CJDHTConstants_QUERY);
if (!query) {
Log_info(admin->logger,
"Got a non-query from admin interface on channel [%u].",
admin->messageHeader.channelNum);
adminChannelClose(admin, admin->messageHeader.channelNum);
return;
}
// txid becomes the user supplied txid combined with the inter-process txid.
String* userTxid = Dict_getString(message, TXID);
uint32_t txidlen = ((userTxid) ? userTxid->len : 0) + Admin_TxidPrefix_SIZE;
String* txid = String_newBinary(NULL, txidlen, allocator);
Bits_memcpyConst(txid->bytes, txid_prefix->raw, Admin_TxidPrefix_SIZE);
if (userTxid) {
Bits_memcpy(txid->bytes + Admin_TxidPrefix_SIZE, userTxid->bytes, userTxid->len);
}
// If they're asking for a cookie then lets give them one.
String* cookie = String_CONST("cookie");
if (String_equals(query, cookie)) {
Dict* d = Dict_new(allocator);
char bytes[32];
snprintf(bytes, 32, "%u", (uint32_t) Time_currentTimeSeconds(admin->eventBase));
String* theCookie = &(String) { .len = strlen(bytes), .bytes = bytes };
Dict_putString(d, cookie, theCookie, allocator);
Admin_sendMessage(d, txid, admin);
return;
}
// If this is a permitted query, make sure the cookie is right.
String* auth = String_CONST("auth");
bool authed = false;
if (String_equals(query, auth)) {
if (!authValid(message, buffer, amount, admin)) {
Dict* d = Dict_new(allocator);
Dict_putString(d, String_CONST("error"), String_CONST("Auth failed."), allocator);
Admin_sendMessage(d, txid, admin);
return;
}
query = Dict_getString(message, String_CONST("aq"));
authed = true;
}
Dict* args = Dict_getDict(message, String_CONST("args"));
bool noFunctionsCalled = true;
for (int i = 0; i < admin->functionCount; i++) {
if (String_equals(query, admin->functions[i].name)
&& (authed || !admin->functions[i].needsAuth))
{
if (checkArgs(args, &admin->functions[i], txid, admin)) {
admin->functions[i].call(args, admin->functions[i].context, txid);
}
noFunctionsCalled = false;
}
}
if (noFunctionsCalled) {
Dict* d = Dict_new(allocator);
Dict_putString(d,
String_CONST("error"),
String_CONST("No functions matched your request."),
allocator);
Dict* functions = Dict_new(allocator);
for (int i = 0; i < admin->functionCount; i++) {
Dict_putDict(functions, admin->functions[i].name, admin->functions[i].args, allocator);
}
if (functions) {
Dict_putDict(d, String_CONST("availableFunctions"), functions, allocator);
}
Admin_sendMessage(d, txid, admin);
return;
}
return;
}
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);
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);
}
