/** @return a string representing the address and port to connect to. */
static void initAngel(struct Pipe* asClientPipe,
struct Interface* asCoreIface,
char* asCorePipeName,
struct EventBase* eventBase,
struct Log* logger,
struct Allocator* alloc,
struct Random* rand)
{
Dict admin = Dict_CONST(
String_CONST("bind"), String_OBJ(String_CONST("127.0.0.1")), Dict_CONST(
String_CONST("corePipeName"), String_OBJ(String_CONST(asCorePipeName)), Dict_CONST(
String_CONST("pass"), String_OBJ(String_CONST("abcd")), NULL
)));
Dict message = Dict_CONST(
String_CONST("admin"), Dict_OBJ(&admin), NULL
);
struct Allocator* tempAlloc = Allocator_child(alloc);
struct Message* toAngel = Message_new(0, 1024, tempAlloc);
BencMessageWriter_write(&message, toAngel, NULL);
Log_info(logger, "Writing intial configuration to angel on [%s]", asClientPipe->name);
Interface_sendMessage(&asClientPipe->iface, toAngel);
// This is client->angel->core data, we can throw this away.
//struct Message* angelToCore =
InterfaceWaiter_waitForData(asCoreIface, eventBase, tempAlloc, NULL);
// unterminated string
//Log_info(logger, "Init message from angel to core: [%s]", angelToCore->bytes);
// Send response on behalf of core.
Dict* coreToAngelResp = Dict_new(tempAlloc);
Dict_putString(coreToAngelResp, String_CONST("error"), String_CONST("none"), tempAlloc);
struct Message* coreToAngelMsg = Message_new(0, 256, tempAlloc);
BencMessageWriter_write(coreToAngelResp, coreToAngelMsg, NULL);
Interface_sendMessage(asCoreIface, coreToAngelMsg);
// This is angel->client data, it will tell us which port was bound.
struct Message* angelToClient =
InterfaceWaiter_waitForData(&asClientPipe->iface, eventBase, tempAlloc, NULL);
uint8_t lastByte = angelToClient->bytes[angelToClient->length-1];
angelToClient->bytes[angelToClient->length-1] = '\0';
printf("Response from angel to client: [%s%c]\n", angelToClient->bytes, (char)lastByte);
Allocator_free(tempAlloc);
return;
}
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;
}
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 sendFirstMessageToCore(void* vcontext)
{
struct NodeContext* ctx = Identity_check((struct NodeContext*) vcontext);
struct Allocator* alloc = Allocator_child(ctx->alloc);
struct Message* msg = Message_new(0, 512, alloc);
Dict* d = Dict_new(alloc);
Dict_putString(d, String_CONST("privateKey"), String_new(ctx->privateKeyHex, alloc), alloc);
Dict* logging = Dict_new(alloc);
{
Dict_putString(logging, String_CONST("logTo"), String_CONST("stdout"), alloc);
}
Dict_putDict(d, String_CONST("logging"), logging, alloc);
Dict* admin = Dict_new(alloc);
{
Dict_putString(admin, String_CONST("bind"), ctx->bind, alloc);
Dict_putString(admin, String_CONST("pass"), ctx->pass, alloc);
}
Dict_putDict(d, String_CONST("admin"), admin, alloc);
BencMessageWriter_write(d, msg, NULL);
Iface_send(&ctx->angelIface, msg);
Allocator_free(alloc);
}
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);
}
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;
}
int main(int argc, char** argv)
{
Assert_ifParanoid(argc > 0);
struct Allocator* allocator = MallocAllocator_new(1<<23);
if (argc != 6 || (argc == 2 &&
(!(CString_strcmp(argv[1], "--help") == 0) || (CString_strcmp(argv[1], "-h") == 0)))) {
return usage(allocator, argv[0]);
}
struct Except* eh = NULL;
struct EventBase* eventBase = EventBase_new(allocator);
struct Log* logger = FileWriterLog_new(stdout, allocator);
String* privateKey = String_new(argv[3], allocator);
String* adminBind = String_new(argv[4], allocator);
String* adminPass = String_new(argv[5], allocator);
String* logTo = String_new("stdout", allocator);
// --------------------- Welcome to cjdns ---------------------- //
char* sysInfo = SysInfo_describe(SysInfo_detect(), allocator);
Log_info(logger, "Cjdns %s %s", ArchInfo_getArchStr(), sysInfo);
// --------------------- Setup Pipes to Angel --------------------- //
struct Allocator* corePipeAlloc = Allocator_child(allocator);
String* corePipeDir = String_new(argv[1], allocator);
String* corePipeName = String_new(argv[2], allocator);
if (!Defined(win32) && access(corePipeDir->bytes, W_OK)) {
Except_throw(eh, "Don't have write permission to [%s].", corePipeDir->bytes);
}
Assert_ifParanoid(EventBase_eventCount(eventBase) == 0);
struct Pipe* corePipe = Pipe_named(corePipeDir->bytes, corePipeName->bytes,
eventBase, eh, corePipeAlloc);
Assert_ifParanoid(EventBase_eventCount(eventBase) == 2);
corePipe->logger = logger;
// --------------------- Pre-Configure Core ------------------------- //
Dict* preConf = Dict_new(allocator);
Dict* adminPreConf = Dict_new(allocator);
Dict* logPreConf = Dict_new(allocator);
Dict_putDict(preConf, String_CONST("admin"), adminPreConf, allocator);
Dict_putDict(preConf, String_CONST("logging"), logPreConf, 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);
Dict_putString(logPreConf, String_CONST("logTo"), logTo, allocator);
struct Message* toCoreMsg = Message_new(0, 1024, allocator);
BencMessageWriter_write(preConf, toCoreMsg, eh);
Iface_CALL(corePipe->iface.send, toCoreMsg, &corePipe->iface);
Log_debug(logger, "Sent [%d] bytes to core.", toCoreMsg->length);
// --------------------- Get Response from Core --------------------- //
struct Message* fromCoreMsg =
InterfaceWaiter_waitForData(&corePipe->iface, eventBase, allocator, eh);
Dict* responseFromCore = BencMessageReader_read(fromCoreMsg, allocator, eh);
// --------------------- Close the Core Pipe --------------------- //
Allocator_free(corePipeAlloc);
corePipe = NULL;
// --------------------- Get Admin Addr/Port/Passwd --------------------- //
Dict* responseFromCoreAdmin = Dict_getDict(responseFromCore, String_CONST("admin"));
adminBind = Dict_getString(responseFromCoreAdmin, String_CONST("bind"));
if (!adminBind) {
Except_throw(eh, "Didn't get ADMIN_BIND back from cjdroute.");
}
struct Sockaddr_storage adminAddr;
if (Sockaddr_parse(adminBind->bytes, &adminAddr)) {
Except_throw(eh, "Unable to parse [%s] as an IP address:port.",
adminBind->bytes);
}
Assert_ifParanoid(EventBase_eventCount(eventBase) == 0);
Log_info(logger, "Admin API ready at [%s].", adminBind->bytes);
return 0;
}