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MeshAgent/meshcore/agentcore.c

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/*
Copyright 2006 - 2018 Intel Corporation
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
#ifdef WIN32
#include <winsock2.h>
#include <ws2tcpip.h>
#include <Windows.h>
#include <WinBase.h>
#include "wincrypto.h"
#include <shellscalingapi.h>
#endif
#include "agentcore.h"
#include "signcheck.h"
#include "meshdefines.h"
#include "meshinfo.h"
#include "microscript/ILibDuktape_Polyfills.h"
#include "microscript/ILibDuktape_Helpers.h"
#include "microscript/ILibDuktape_SHA256.h"
#include "microscript/ILibDuktape_EncryptionStream.h"
#include "microscript/ILibDuktape_DuplexStream.h"
#include "microscript/ILibDuktape_EventEmitter.h"
#include "microscript/ILibDuktape_net.h"
#include "microscript/ILibDuktape_Dgram.h"
#include "microstack/ILibParsers.h"
#include "microstack/ILibAsyncUDPSocket.h"
#include "microstack/ILibMulticastSocket.h"
#include "microscript/ILibDuktape_ScriptContainer.h"
#include "../microstack/ILibIPAddressMonitor.h"
#ifdef _POSIX
#include <sys/stat.h>
#include <sys/wait.h>
#endif
#ifdef _LINKVM
#ifdef WIN32
#include "KVM/Windows/kvm.h"
#endif
#ifdef _POSIX
#ifndef __APPLE__
#include "KVM/Linux/linux_kvm.h"
#else
#include "KVM/MacOS/mac_kvm.h"
#endif
#endif
#endif
#if defined(WIN32) && !defined(_WIN32_WCE) && !defined(_MINCORE)
#define _CRTDBG_MAP_ALLOC
#include <crtdbg.h>
#endif
#ifdef __APPLE__
#include <mach-o/dyld.h>
#endif
#define HEX_IDENTIFIER (unsigned short)12408
#define EXE_IDENTIFIER (unsigned int)778401893
#define MSH_IDENTIFIER (unsigned int)778924904
#define SCRIPT_ENGINE_PIPE_BUFFER_SIZE 65535
#define MESH_AGENT_PORT 16990 //!< Default Mesh Agent Port
#define MESH_MCASTv4_GROUP "239.255.255.235"
#define MESH_MCASTv6_GROUP "FF02:0:0:0:0:0:0:FE"
char exeMeshPolicyGuid[] = { 0xB9, 0x96, 0x01, 0x58, 0x80, 0x54, 0x4A, 0x19, 0xB7, 0xF7, 0xE9, 0xBE, 0x44, 0x91, 0x4C, 0x19 };
#define MESH_SCRIPTCONTAINER_ID "\xFF_ScriptContainer_ID"
#define MESH_AGENT_SINGLETON "\xFF_MeshAgentObject_Singleton"
#define SEQ_TABLE_KEY "\xFF_seqTable"
#define CONTAINER_PTR "\xFF_ptr"
#define MESH_AGENT_PTR "\xFFMeshAgentPtr"
#define CTX_PTR "\xFF_Heap"
#define CONTEXT_GUID_PTR "_CONTEXT_GUID_PTR"
#define REMOTE_DESKTOP_STREAM "\xFF_RemoteDesktopStream"
#define REMOTE_DESKTOP_ptrs "\xFF_RemoteDesktopPTRS"
#define DEFAULT_IDLE_TIMEOUT 120
#define KVM_IPC_SOCKET "\xFF_KVM_IPC_SOCKET"
int ILibDuktape_HECI_Debug = 0;
#ifdef _POSIX
extern char **environ;
#ifndef __APPLE__
extern int SLAVELOG;
#endif
#endif
extern int ILibDuktape_ModSearch_ShowNames;
char* MeshAgentHost_BatteryInfo_STRINGS[] = { "UNKNOWN", "HIGH_CHARGE", "LOW_CHARGE", "NO_BATTERY", "CRITICAL_CHARGE", "", "", "", "CHARGING" };
JS_ENGINE_CONTEXT MeshAgent_JavaCore_ContextGuid = { 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 };
typedef struct RemoteDesktop_Ptrs
{
duk_context *ctx;
void *object;
void *MeshAgentObject;
#ifdef _POSIX
void *kvmPipe;
#ifdef __APPLE__
int kvmDomainSocket;
#endif
#endif
ILibDuktape_DuplexStream *stream;
}RemoteDesktop_Ptrs;
typedef struct ScriptContainerSettings
{
SCRIPT_ENGINE_SECURITY_FLAGS permissions;
unsigned int executionTimeout;
int usingMasterDb;
ILibDuktape_NativeUncaughtExceptionHandler nUncaughtExceptionHandler;
void *nUncaughtExceptionUser;
char ContextGuid[sizeof(JS_ENGINE_CONTEXT) + 1];
}ScriptContainerSettings;
#pragma pack(push, 1)
typedef struct MeshCommand_BinaryPacket_ServerId
{
unsigned short command;
char serverId[UTIL_SHA384_HASHSIZE];
}MeshCommand_BinaryPacket_ServerId;
typedef struct MeshCommand_BinaryPacket_AuthRequest
{
unsigned short command;
char serverHash[UTIL_SHA384_HASHSIZE];
char serverNonce[UTIL_SHA384_HASHSIZE];
}MeshCommand_BinaryPacket_AuthRequest;
typedef struct MeshCommand_BinaryPacket_AuthVerify_Header
{
unsigned short command;
unsigned short certLen;
char data[];
}MeshCommand_BinaryPacket_AuthVerify_Header;
typedef struct MeshCommand_BinaryPacket_AuthVerify
{
char *cert;
unsigned short certLen;
char *signature;
unsigned short signatureLen;
}MeshCommand_BinaryPacket_AuthVerify;
typedef enum MeshCommand_AuthInfo_PlatformType
{
MeshCommand_AuthInfo_PlatformType_DESKTOP = 1,
MeshCommand_AuthInfo_PlatformType_LAPTOP = 2,
MeshCommand_AuthInfo_PlatformType_MOBILE = 3,
MeshCommand_AuthInfo_PlatformType_SERVER = 4,
MeshCommand_AuthInfo_PlatformType_DISK = 5,
MeshCommand_AuthInfo_PlatformType_ROUTER = 6
}MeshCommand_BinaryPacket_AuthInfo_PlatformType;
typedef struct MeshCommand_BinaryPacket_AuthInfo
{
unsigned short command;
unsigned int infoVersion;
unsigned int agentId;
unsigned int agentVersion;
unsigned int platformType;
char MeshID[UTIL_SHA384_HASHSIZE];
unsigned int capabilities;
unsigned short hostnameLen;
char hostname[];
}MeshCommand_BinaryPacket_AuthInfo;
typedef struct MeshCommand_BinaryPacket_CoreModule
{
unsigned short command;
unsigned short request;
char coreModuleHash[UTIL_SHA384_HASHSIZE];
char coreModule[];
}MeshCommand_BinaryPacket_CoreModule;
#pragma pack(pop)
#define ScriptContainerSettingsKey "\xFF_ScriptContainerSettings"
ScriptContainerSettings* ScriptEngine_GetSettings(duk_context *ctx)
{
ScriptContainerSettings *retVal = NULL;
duk_push_heap_stash(ctx); // [stash]
if (duk_has_prop_string(ctx, -1, ScriptContainerSettingsKey))
{
duk_get_prop_string(ctx, -1, ScriptContainerSettingsKey); // [stash][buffer]
retVal = (ScriptContainerSettings*)Duktape_GetBuffer(ctx, -1, NULL);
duk_pop_2(ctx); // ...
return retVal;
}
else
{
duk_pop(ctx); // ...
return NULL;
}
}
typedef struct SCRIPT_ENGINE_ISOLATION
{
unsigned int reserved;
MeshAgentHostContainer *agent;
ILibProcessPipe_Process process;
duk_context *ctx;
ILibDuktape_EventEmitter *emitter;
void *ScriptContainer;
void *OnExit;
void *OnError;
unsigned int seq;
char *containerID;
duk_size_t containerIDLen;
#ifdef WIN32
char* buffer;
int bufferLen;
#endif
}SCRIPT_ENGINE_ISOLATION;
typedef enum SCRIPT_ENGINE_COMMAND
{
SCRIPT_ENGINE_COMMAND_INIT = 0x01,
SCRIPT_ENGINE_COMMAND_EXEC_PATH = 0x02,
SCRIPT_ENGINE_COMMAND_EXEC_STR = 0x03,
SCRIPT_ENGINE_COMMAND_EXEC_OK = 0x04,
SCRIPT_ENGINE_COMMAND_EXEC_ERR = 0xFE,
SCRIPT_ENGINE_COMMAND_QUERY = 0x20,
SCRIPT_ENGINE_COMMAND_SET = 0x21,
SCRIPT_ENGINE_COMMAND_DB_GET = 0x10,
SCRIPT_ENGINE_COMMAND_DB_PUT = 0x11,
SCRIPT_ENGINE_COMMAND_LOG = 0xFF
}SCRIPT_ENGINE_COMMAND;
#pragma pack(push, 1)
typedef struct SCRIPT_ENGINE_COMMAND_HEADER
{
unsigned short length;
unsigned short cmdType;
char data[];
}SCRIPT_ENGINE_COMMAND_HEADER;
typedef struct SCRIPT_ENGINE_COMMAND_INIT_DATA
{
JS_ENGINE_CONTEXT contextGuid;
unsigned int securityFlags;
unsigned int executionTimeout;
}SCRIPT_ENGINE_COMMAND_INIT_DATA;
typedef struct SCRIPT_ENGINE_COMMAND_LOG_DATA
{
ILibRemoteLogging_Modules module;
ILibRemoteLogging_Flags flags;
char msg[];
}SCRIPT_ENGINE_COMMAND_LOG_DATA;
typedef struct SCRIPT_ENGINE_COMMAND_EXEC_ERR_DATA
{
JS_ENGINE_CONTEXT contextGuid;
int seq;
char errorMessage[];
}SCRIPT_ENGINE_COMMAND_EXEC_ERR_DATA;
typedef struct SCRIPT_ENGINE_COMMAND_EXEC_OK_DATA
{
JS_ENGINE_CONTEXT contextGuid;
int seq;
char retVal_JSON[];
}SCRIPT_ENGINE_COMMAND_EXEC_OK_DATA;
typedef struct SCRIPT_ENGINE_COMMAND_EXEC_STR_DATA
{
JS_ENGINE_CONTEXT contextGuid;
int seq;
char script[];
}SCRIPT_ENGINE_COMMAND_EXEC_STR_DATA;
typedef struct SCRIPT_ENGINE_COMMAND_DB_GET_DATA
{
JS_ENGINE_CONTEXT contextGuid;
char key[];
}SCRIPT_ENGINE_COMMAND_DB_GET_DATA;
typedef struct SCRIPT_ENGINE_COMMAND_DB_PUT_DATA
{
JS_ENGINE_CONTEXT contextGuid;
int valueOffset;
char data[];
}SCRIPT_ENGINE_COMMAND_DB_PUT_DATA;
#pragma pack(pop)
const char* AgentID_String[24] =
{
"UNKNOWN", "Windows Console/x86", "Windows Console/x64", "Windows Service/x86", "Windows Service/x64",
"Linux/x86", "Linux/x64", "MIPS", "XEN/x86", "Android/ARM", "Linux/ARM", "MAC OS/x86", "Android/x86", "PogoPlug/ARM",
"Android (Google Play)", "Linux(Poky)/x86", "MAC OS/x64", "ChromeOS", "Linux(Poky)/x64", "Linux (NoKVM)/x86",
"Linux (NoKVM)/x64", "Windows Console (MIN)", "Windows Service (MIN)", "NodeJS"
};
typedef enum AGENT_RECORD_TYPE
{
AGENT_RECORD_TYPE_INIT = 0x00000001,
AGENT_RECORD_TYPE_SHARED_DB = 0x00000003,
AGENT_RECORD_TYPE_JAVASCRIPT_PAYLOAD = 0x00000004,
AGENT_RECORD_TYPE_DATA_SET = 0x00000006,
AGENT_RECORD_TYPE_DATA_QUERY = 0x00000008
}AGENT_RECORD_TYPE;
typedef struct AGENT_RECORD_HEADER
{
unsigned int RecordLength;
AGENT_RECORD_TYPE RecordType;
JS_ENGINE_CONTEXT Context;
char Payload[];
}AGENT_RECORD_HEADER;
//
// Piped Data Layout:
//
// 4 Bytes: Record Length
// 4 Bytes: Record Type
// 16 Bytes: Context GUID
// Variable: Payload
// Payloads ==>
// Init Record Payload
// 4 Bytes: Security Flags
// 4 Bytes: Execution Timeout
// Javascript Payload
// JS Payload
// Shared DB Payload
// DB Path
// Environment Payload
// 2 Bytes: VarLen
// 2 Bytes: VarValueLen
// Variable: VarName
// Variable: VarValue
// Data Query
// 2 Bytes: QueryLen
// Variable: Query
void MeshServer_Connect(MeshAgentHostContainer *agent);
void MeshServer_ProcessCommand(ILibWebClient_StateObject wcdo, MeshAgentHostContainer *agent, char *buffer, int bufferLen);
char ContainerContextGUID[sizeof(JS_ENGINE_CONTEXT) + 1];
void MeshServer_ConnectEx(MeshAgentHostContainer *agent);
int agent_VerifyMeshCertificates(MeshAgentHostContainer *agent);
void MeshAgent_sendConsoleText(duk_context *ctx, char *format, ...)
{
char dest[4096];
int len = 0;
va_list argptr;
if (ctx != NULL && format != NULL)
{
va_start(argptr, format);
len += vsnprintf(dest + len, sizeof(dest) - len, format, argptr);
va_end(argptr);
if (duk_peval_string(ctx, "require('MeshAgent');") == 0)
{
duk_get_prop_string(ctx, -1, "SendCommand"); // [agent][SendCommand]
duk_swap_top(ctx, -2); // [SendCommand][this]
duk_push_object(ctx); // [SendCommand][this][var]
duk_push_string(ctx, "msg"); duk_put_prop_string(ctx, -2, "action");
duk_push_string(ctx, "console"); duk_put_prop_string(ctx, -2, "type");
duk_push_string(ctx, dest); duk_put_prop_string(ctx, -2, "value");
if (duk_pcall_method(ctx, 1) != 0) {}
}
duk_pop(ctx); // ...
}
}
int MeshAgent_GetSystemProxy(MeshAgentHostContainer *agent, char *buffer, size_t bufferSize)
{
#ifndef __APPLE__
int retVal = 0;
#endif
#ifdef _POSIX
#ifndef __APPLE__
// Linux and FreeBSD
for (char **env = environ; *env; ++env)
{
int envLen = (int)strnlen_s(*env, INT_MAX);
int i = ILibString_IndexOf(*env, envLen, "=", 1);
if (i > 0)
{
if (i == 11 && (strncmp(*env, "https_proxy", 11) == 0 || strncmp(*env, "HTTPS_PROXY", 11) == 0))
{
if (ILibString_StartsWith(*env + i + 1, envLen - i - 1, "http://", 7) != 0)
{
strcpy_s(buffer, bufferSize, *env + i + 8);
retVal = envLen - i - 8;
}
else if(ILibString_StartsWith(*env + i + 1, envLen - i - 1, "https://", 8) != 0)
{
strcpy_s(buffer, bufferSize, *env + i + 9);
retVal = envLen - i - 9;
}
else
{
strcpy_s(buffer, bufferSize, *env + i + 1);
retVal = envLen - i - 1;
}
break;
}
}
}
if (retVal == 0)
{
// Check /etc/environment just in case it wasn't exported
#ifdef _FREEBSD
// FreeBSD Only
char getProxy[] = "(function getProxies(){\
var child = require('child_process').execFile('/bin/sh', ['sh']);\
child.stdout.str = ''; child.stdout.on('data', function (c) { this.str += c.toString(); });\
child.stdin.write('cat /etc/login.conf | grep :setenv= | awk -F\":setenv=\" \\'{ if(!($1 ~ /^#/)) { print $2 } }\\' | tr \"\\,\" \"\\n\" | awk -F= \\'{ if($1==\"https_proxy\") { gsub(/\\\\\\\\c/, \":\", $2); print $2 } }\\'\\n\\exit\\n');\
child.waitExit();\
return(child.stdout.str.trim().split('\\n')[0].split('//')[1]);\
})();";
#else
// Linux Only
char getProxy[] = "(function getProxies(){\
if(require('fs').existsSync('/etc/environment'))\
{\
var e = require('fs').readFileSync('/etc/environment').toString();\
var tokens = e.split('\\n');\
for(var line in tokens)\
{\
var val = tokens[line].split('=');\
if(val.length == 2 && (val[0].trim() == 'http_proxy' || val[0].trim() == 'https_proxy'))\
{\
return(val[1].split('//')[1]);\
}\
}\
}\
if(require('fs').existsSync('/etc/profile.d/proxy_setup'))\
{\
var child = require('child_process').execFile('/bin/sh', ['sh']);\
child.stdout.str = ''; child.stdout.on('data', function (c) { this.str += c.toString(); });\
child.stdin.write('cat /etc/profile.d/proxy_setup | awk \\'{ split($2, tok, \"=\"); if(tok[1]==\"http_proxy\") { print tok[2]; }}\\'\\nexit\\n');\
child.waitExit();\
child.ret = child.stdout.str.trim().split('\\n')[0].split('//')[1];\
if(child.ret != '') { return(child.ret); }\
}\
if (require('fs').existsSync('/usr/bin/gsettings'))\
{\
var setting;\
var ids = require('user-sessions').loginUids(); \
for (var i in ids)\
{\
setting = require('linux-gnome-helpers').getProxySettings(ids[i]);\
if (setting.mode == 'manual') { return(setting.host + ':' + setting.port);} \
}\
}\
throw('No Proxy set');\
})();";
#endif
// Linux and FreeBSD
if (duk_peval_string(agent->meshCoreCtx, getProxy) == 0)
{
duk_size_t proxyLen;
char *proxy = (char*)duk_get_lstring(agent->meshCoreCtx, -1, &proxyLen);
if (proxy != NULL && proxyLen > 0) { strcpy_s(buffer, bufferSize, proxy); }
retVal = (int)proxyLen;
}
duk_pop(agent->meshCoreCtx);
}
return(retVal);
#else
// MacOS Only
char getProxyies[] = "(function getProxies(){\
var ret = {};\
var child = require('child_process').execFile('/bin/sh', ['sh']);\
child.stdout.str = '';\
child.stdout.on('data', function(chunk) { this.str += chunk.toString(); });\
child.stdin.write('system_profiler SPNetworkDataType | grep \"Proxy\" \\nexit\\n');\
child.waitExit();\
var lines = child.stdout.str.split('\\n');\
for (var i in lines)\
{\
if (lines[i])\
{\
var val = lines[i].split(':')[1].trim().toLowerCase();\
var tokens = lines[i].split(':')[0].trim().split(' ');\
var key = tokens[0].toLowerCase();\
var t = tokens[2].toLowerCase();\
if (!ret[key]) { ret[key] = {}; }\
ret[key][t] = val;\
}\
}\
return(ret);\
})();";
if (duk_peval_string(agent->meshCoreCtx, getProxyies) == 0)
{
if (duk_has_prop_string(agent->meshCoreCtx, -1, "http"))
{
duk_get_prop_string(agent->meshCoreCtx, -1, "http");
}
else if (duk_has_prop_string(agent->meshCoreCtx, -1, "https"))
{
duk_get_prop_string(agent->meshCoreCtx, -1, "https");
}
else
{
duk_pop(agent->meshCoreCtx);
return(0); // No Proxies detected
}
if (strcmp(Duktape_GetStringPropertyValue(agent->meshCoreCtx, -1, "enabled", "no"), "yes") == 0)
{
char *proxyserver, *proxyport;
duk_size_t proxyserverLen, proxyportLen;
proxyserver = (char*)Duktape_GetStringPropertyValueEx(agent->meshCoreCtx, -1, "server", NULL, &proxyserverLen);
proxyport = (char*)Duktape_GetStringPropertyValueEx(agent->meshCoreCtx, -1, "port", "8080", &proxyportLen);
strncpy_s(buffer, bufferSize, proxyserver, proxyserverLen);
strncpy_s(buffer + proxyserverLen, bufferSize - proxyserverLen, ":", 1);
strncpy_s(buffer + proxyserverLen + 1, bufferSize - proxyserverLen - 1, proxyport, proxyportLen);
duk_pop(agent->meshCoreCtx);
return(proxyserverLen + 1 + proxyportLen);
}
else
{
// Proxy is disabled
duk_pop(agent->meshCoreCtx);
return(0);
}
}
else
{
return(0);
}
#endif
#else
// Windows Only
char getProxy[] = "(function () {\
var isroot = false;\
var servers = [];\
/* First we need to see if we are running as admin */\
var GM = require('_GenericMarshal');\
var advapi = GM.CreateNativeProxy('Advapi32.dll');\
advapi.CreateMethod('AllocateAndInitializeSid');\
advapi.CreateMethod('CheckTokenMembership');\
advapi.CreateMethod('FreeSid');\
var NTAuthority = GM.CreateVariable(6);\
NTAuthority.toBuffer().writeInt8(5, 5);\
var AdministratorsGroup = GM.CreatePointer();\
if (advapi.AllocateAndInitializeSid(NTAuthority, 2, 32, 544, 0, 0, 0, 0, 0, 0, AdministratorsGroup).Val != 0)\
{\
var member = GM.CreateInteger();\
if (advapi.CheckTokenMembership(0, AdministratorsGroup.Deref(), member).Val != 0)\
{\
if (member.toBuffer().readUInt32LE() != 0) { isroot = true; }\
}\
advapi.FreeSid(AdministratorsGroup.Deref());\
}\
var reg = require('win-registry');\
if (isroot)\
{\
/* If running as admin, enumerate the users to find proxy settings */\
var users = reg.QueryKey(reg.HKEY.Users);\
var keys;\
for (var i in users.subkeys)\
{\
try\
{\
value = reg.QueryKey(reg.HKEY.Users, users.subkeys[i] + '\\Software\\Microsoft\\Windows\\CurrentVersion\\Internet Settings', 'ProxyEnable');\
if (value == 1)\
{\
value = reg.QueryKey(reg.HKEY.Users, users.subkeys[i] + '\\Software\\Microsoft\\Windows\\CurrentVersion\\Internet Settings', 'ProxyServer');\
servers.push(value);\
}\
}\
catch (e)\
{\
}\
}\
return (servers);\
}\
else\
{\
/* We're not admin, so we can only check HKEY_LOCAL_USERS for proxy settings */\
try\
{\
if (reg.QueryKey(reg.HKEY.CurrentUser, 'Software\\\\Microsoft\\\\Windows\\\\CurrentVersion\\\\Internet Settings', 'ProxyEnable') == 1)\
{\
servers.push(reg.QueryKey(reg.HKEY.CurrentUser, 'Software\\\\Microsoft\\\\Windows\\\\CurrentVersion\\\\Internet Settings', 'ProxyServer'));\
}\
}\
catch (e)\
{\
}\
return (servers);\
}\
})();";
if (duk_peval_string(agent->meshCoreCtx, getProxy) == 0)
{
if (duk_get_length(agent->meshCoreCtx, -1) > 0) // [array]
{
duk_get_prop_index(agent->meshCoreCtx, -1, 0); // [array][0];
char *tmp;
duk_size_t tmpLen;
tmp = (char*)duk_get_lstring(agent->meshCoreCtx, -1, &tmpLen);
strncpy_s(buffer, bufferSize, tmp, tmpLen);
duk_pop(agent->meshCoreCtx); // [array]
retVal = (int)tmpLen;
}
}
duk_pop(agent->meshCoreCtx); // ...
return(retVal);
#endif
}
#ifdef _POSIX
size_t MeshAgent_Linux_ReadMemFile(char *path, char **buffer)
{
size_t i = 0, r, sz = 4096;
*buffer = NULL;
FILE *f = fopen(path, "rb");
if (f != NULL)
{
if ((*buffer = malloc(sz)) == NULL) { ILIBCRITICALEXIT(254); }
while ((r = fread(*buffer + i, 1, sz - i, f)) > 0)
{
i += r;
if (i == sz)
{
if ((*buffer = realloc(*buffer, sz + 4096)) == NULL) { ILIBCRITICALEXIT(254); }
sz += 4096;
}
}
(*buffer)[i] = 0;
fclose(f);
}
return(i);
}
int MeshAgent_Helper_CommandLine(char **commands, char **result, int *resultLen)
{
int bytesRead, x;
size_t sz;
int inputPipe[2], outputPipe[2];
pid_t pid;
if (commands == NULL || result == NULL || resultLen == NULL) { return(-2); }
ignore_result(pipe(inputPipe));
ignore_result(pipe(outputPipe));
pid = vfork();
if (pid < 0)
{
// error;
close(inputPipe[0]); close(inputPipe[1]);
close(outputPipe[0]); close(outputPipe[1]);
return(-1);
}
if (pid == 0)
{
// child
close(inputPipe[1]); // Close Write End of StdIn
close(outputPipe[0]); // Close Read End of StdOut
dup2(inputPipe[0], STDIN_FILENO);
dup2(outputPipe[1], STDOUT_FILENO);
dup2(outputPipe[1], STDERR_FILENO);
close(inputPipe[0]);
close(outputPipe[1]);
execv("/bin/sh", (char*[]) {"sh", NULL});
exit(1);
}
// parent
close(inputPipe[0]); // Close Read End of StdIn
close(outputPipe[1]); // Close Write End of StdOut
for (int i = 0; commands[i] != NULL; ++i)
{
ignore_result(write(inputPipe[1], commands[i], strlen(commands[i])));
}
x = 0;
sz = 4096;
if ((*result = (char*)malloc(sz)) == NULL) { ILIBCRITICALEXIT(254); }
while ((bytesRead = read(outputPipe[0], *result + x, sz - x)) > 0)
{
x += bytesRead;
if (x == sz)
{
if ((*result = realloc(*result, sz + 4096)) == NULL) { ILIBCRITICALEXIT(254); }
sz += 4096;
}
}
(*result)[x] = 0;
*resultLen = x;
waitpid(pid, &bytesRead, 0);
return(0);
}
#endif
#ifdef _REMOTELOGGING
void MeshAgent_Slave_LogForward(ILibRemoteLogging sender, ILibRemoteLogging_Modules module, ILibRemoteLogging_Flags flags, char *buffer, int bufferLen)
{
SCRIPT_ENGINE_COMMAND_HEADER* header = (SCRIPT_ENGINE_COMMAND_HEADER*)buffer;
buffer[bufferLen] = 0;
header->cmdType = SCRIPT_ENGINE_COMMAND_LOG;
header->length = bufferLen+1;
((SCRIPT_ENGINE_COMMAND_LOG_DATA*)header->data)->module = module;
((SCRIPT_ENGINE_COMMAND_LOG_DATA*)header->data)->flags = flags;
#ifdef WIN32
WriteFile(GetStdHandle(STD_ERROR_HANDLE), (void*)buffer, ((SCRIPT_ENGINE_COMMAND_HEADER*)buffer)->length, &bufferLen, NULL);
#else
ignore_result(write(STDERR_FILENO, buffer, ((SCRIPT_ENGINE_COMMAND_HEADER*)buffer)->length));
#endif
}
#endif
ILibDuktape_EventEmitter* MeshAgent_GetEventEmitter_FromCTX(duk_context *ctx)
{
ILibDuktape_EventEmitter* retVal = NULL;
duk_push_heap_stash(ctx); // [stash]
if (duk_has_prop_string(ctx, -1, MESH_AGENT_SINGLETON))
{
duk_get_prop_string(ctx, -1, MESH_AGENT_SINGLETON); // [stash][MeshAgent]
retVal = ILibDuktape_EventEmitter_GetEmitter(ctx, -1);
duk_pop_2(ctx); // ...
}
else
{
duk_pop(ctx); // ...
}
return retVal;
}
void MeshAgent_Slave_SendCommand(MeshAgentHostContainer *agent, char *buffer, int bufferLen)
{
if (agent->slaveMode != 0)
{
#ifdef WIN32
int writeLen;
WriteFile(GetStdHandle(STD_ERROR_HANDLE), (void*)buffer, bufferLen, &writeLen, NULL);
#else
ignore_result(write(STDERR_FILENO, buffer, bufferLen));
#endif
}
}
// This is used in windows console mode to detect if Intel LMS is running
#ifdef WIN32
#ifndef _WINSERVICE
int GetServiceState(LPCSTR servicename)
{
int r = 0;
SC_HANDLE serviceControlManager = OpenSCManager(0, 0, SC_MANAGER_CONNECT);
if (serviceControlManager)
{
SC_HANDLE service = OpenService(serviceControlManager, servicename, SERVICE_QUERY_STATUS | DELETE);
if (service)
{
SERVICE_STATUS serviceStatusEx;
if (QueryServiceStatus(service, &serviceStatusEx))
{
r = serviceStatusEx.dwCurrentState;
}
CloseServiceHandle(service);
}
else
{
r = 100;
}
CloseServiceHandle(serviceControlManager);
}
return r;
}
#else
extern int GetServiceState(LPCSTR servicename);
#endif
#endif
/* ------------------------------
Begin Mesh Agent Multicast Support
This is used only when "MeshServer=local" in .msh policy file
--------------------------------*/
// Called when a UDP packet is received
void UDPSocket_OnData(ILibAsyncUDPSocket_SocketModule socketModule, char* buffer, int bufferLength, struct sockaddr_in6 *remoteInterface, void *user, void *user2, int *PAUSE)
{
//int isLoopback;
MeshAgentHostContainer *agentHost = (MeshAgentHostContainer*)user;
UNREFERENCED_PARAMETER(socketModule);
UNREFERENCED_PARAMETER(user);
UNREFERENCED_PARAMETER(user2);
UNREFERENCED_PARAMETER(PAUSE);
// Perform basic checks before processing this packet
if (remoteInterface->sin6_family != AF_INET && remoteInterface->sin6_family != AF_INET6) return;
//isLoopback = ILibIsLoopback((struct sockaddr*)remoteInterface);
// Check if this is a Mesh Server discovery packet and it is for our server
// It will have this form: "MeshCentral2|f5a50091028fe2c122434cbcbd2709a7ec10369295e5a0e43db8853a413d89df|wss://~:443/agent.ashx"
if ((bufferLength > 78) && (memcmp(buffer, "MeshCentral2|", 13) == 0) && ((ILibSimpleDataStore_Get(agentHost->masterDb, "ServerID", ILibScratchPad, sizeof(ILibScratchPad))) == 97) && (memcmp(ILibScratchPad, buffer + 13, 96) == 0)) {
// We have a match, set the server URL correctly.
if (agentHost->multicastServerUrl != NULL) { free(agentHost->multicastServerUrl); agentHost->multicastServerUrl = NULL; }
if ((agentHost->multicastServerUrl = (char*)malloc(bufferLength - 78 + 128)) == NULL) { ILIBCRITICALEXIT(254); }
buffer[bufferLength] = 0;
ILibInet_ntop2((struct sockaddr*)remoteInterface, (char*)ILibScratchPad2, sizeof(ILibScratchPad));
sprintf_s(agentHost->multicastServerUrl, bufferLength - 78 + 128, buffer + 78 + 32, ILibScratchPad2);
//printf("FoundServer: %s\r\n", agentHost->multicastServerUrl);
if (agentHost->serverConnectionState == 0) { MeshServer_ConnectEx(agentHost); }
}
}
/*
// Called with a 5 second lag time when an interface changes
void IPAddressMonitorUpdate(void *data)
{
UNREFERENCED_PARAMETER(data);
// Setup the multicast timer
//MSG("IPAddressMonitorUpdate.\r\n");
#ifdef WIN32
// In Windows, just reset the broadcast timer to 15 seconds
ILibLifeTime_Remove(Mesh.Timer, (void*)2);
ILibLifeTime_Add(Mesh.Timer, (void*)2, 15, &TimerTriggered, &TimerDestroyed);
#else
// In Linux, we need to check to see if the push block has changed
ctrl_GetCurrentSignedNodeInfoBlock(NULL);
if (Mesh.LastMulticastPushSerial != g_serial)
{
Mesh.LastMulticastPushSerial = g_serial;
ILibLifeTime_Remove(Mesh.Timer, (void*)2);
ILibLifeTime_Add(Mesh.Timer, (void*)2, 30, &TimerTriggered, &TimerDestroyed);
}
#endif
// If the service is not connected, reduce the time to the next attempt to 5 seconds
if (g_ServiceConnected == 0) {
ILibLifeTime_Remove(Mesh.Timer, (void*)4);
ILibLifeTime_Add(Mesh.Timer, (void*)4, 5, &TimerTriggered, &TimerDestroyed);
}
}
// Method gets periodically executed on the microstack thread to update the list of known IP addresses.
#ifdef WINSOCK2
void CALLBACK IPAddressMonitor
(
IN DWORD dwError,
IN DWORD cbTransferred,
IN LPWSAOVERLAPPED lpOverlapped,
IN DWORD dwFlags
)
#else
void IPAddressMonitor(void *data)
#endif
{
#ifdef WINSOCK2
UNREFERENCED_PARAMETER(dwError);
UNREFERENCED_PARAMETER(cbTransferred);
UNREFERENCED_PARAMETER(lpOverlapped);
UNREFERENCED_PARAMETER(dwFlags);
#endif
// We are in the process of cleaning up, lets exit now
if (Mesh.MulticastSocket == NULL) return;
#ifdef WINSOCK2
// Call the interface update with a lag timer. The short lag allows interfaces to stabilize.
ILibLifeTime_Remove(Mesh.Timer, ILibScratchPad); // Here we use "ILibScratchPad" as a dummy global identifier, memory not actualy used
ILibLifeTime_Add(Mesh.Timer, ILibScratchPad, 6, &IPAddressMonitorUpdate, NULL); // Here we use "ILibScratchPad" as a dummy global identifier, memory not actualy used
WSAIoctl(NetworkMonitorSocket, SIO_ADDRESS_LIST_CHANGE, NULL, 0, NULL, 0, &UpnpMonitorSocketReserved, &UpnpMonitorSocketStateObject, &IPAddressMonitor);
#else
// Call the interface update directly. TODO: This is very innefficient, we need to fix this.
IPAddressMonitorUpdate(NULL);
ILibLifeTime_Add(Mesh.Timer, NULL, 20, &IPAddressMonitor, NULL);
#endif
}
*/
/* ------------------------------
Begin Mesh Agent Duktape Abstraction
--------------------------------*/
duk_ret_t ILibDuktape_MeshAgent_AddCommandHandler(duk_context *ctx)
{
duk_push_this(ctx); // [agent]
duk_get_prop_string(ctx, -1, "on"); // [agent][on]
duk_swap_top(ctx, -2); // [on][this]
duk_push_string(ctx, "Command"); // [on][this][Command]
duk_dup(ctx, 0); // [on][this][Command][listener]
duk_call_method(ctx, 2);
return 0;
}
duk_ret_t ILibDuktape_MeshAgent_AddConnectHandler(duk_context *ctx)
{
duk_push_this(ctx); // [agent]
duk_get_prop_string(ctx, -1, "on"); // [agent][on]
duk_swap_top(ctx, -2); // [on][this]
duk_push_string(ctx, "Connected"); // [on][this][connected]
duk_dup(ctx, 0); // [on][this][connected][listener]
duk_call_method(ctx, 2);
return 0;
}
duk_ret_t ILibDuktape_MeshAgent_Finalizer(duk_context *ctx)
{
return 0;
}
duk_ret_t ILibDuktape_MeshAgent_GenerateCertificate(duk_context *ctx)
{
#ifdef MICROSTACK_NOTLS
return ILibDuktape_Error(ctx, "MeshAgent.generateCertificate(): Error, OpenSSL Support Disabled");
#else
char *passphrase = (char*)duk_require_string(ctx, 0);
int len;
struct util_cert cert;
char *data;
#ifdef _REMOTELOGGING
MeshAgentHostContainer *agent;
duk_push_this(ctx); // [agent]
duk_get_prop_string(ctx, -1, MESH_AGENT_PTR); // [agent][ptr]
agent = (MeshAgentHostContainer*)duk_get_pointer(ctx, -1);
// Generate a new TLS certificate
ILibRemoteLogging_printf(ILibChainGetLogger(agent->chain), ILibRemoteLogging_Modules_Agent_GuardPost, ILibRemoteLogging_Flags_VerbosityLevel_1, "...Generating JS TLS Certificate");
#endif
SSL_TRACE1("ILibDuktape_MeshAgent_GenerateCertificate()");
len = util_mkCert(NULL, &(cert), 3072, 10000, "localhost", CERTIFICATE_TLS_CLIENT, NULL);
len = util_to_p12(cert, passphrase, &data);
duk_push_fixed_buffer(ctx, len);
memcpy_s((void*)Duktape_GetBuffer(ctx, -1, NULL), len, data, len);
util_free(data);
util_freecert(&cert);
SSL_TRACE2("ILibDuktape_MeshAgent_GenerateCertificate()");
return 1;
#endif
}
// Javascript SendCommand(obj), send some data to the MeshCentral server
// This method can handle buffers, string or objects as input.
duk_ret_t ILibDuktape_MeshAgent_SendCommand(duk_context *ctx)
{
MeshAgentHostContainer *agent;
char *buffer;
duk_size_t bufferLen;
// Get the pointer to the agent object
duk_push_this(ctx); // [MeshAgent]
duk_get_prop_string(ctx, -1, MESH_AGENT_PTR); // [MeshAgent][Ptr]
agent = (MeshAgentHostContainer*)duk_get_pointer(ctx, -1);
if (agent->controlChannel == NULL)
{
duk_push_int(ctx, (int)ILibTransport_DoneState_ERROR); // Agent not connected
}
#ifndef MICROSTACK_NOTLS
else if (agent->serverAuthState != 3) {
// Server connection is not authenticated, SendCommand is not allowed.
duk_push_int(ctx, (int)ILibTransport_DoneState_ERROR);
}
#endif
else if (duk_is_buffer(ctx, 0) || duk_is_buffer_data(ctx, 0))
{
// We are trying to send a buffer
buffer = Duktape_GetBuffer(ctx, 0, &bufferLen);
if (bufferLen > 0) { duk_push_int(ctx, (int)ILibWebClient_WebSocket_Send(agent->controlChannel, buffer[0] == '{' ? ILibWebClient_WebSocket_DataType_TEXT : ILibWebClient_WebSocket_DataType_BINARY, buffer, (int)bufferLen, ILibAsyncSocket_MemoryOwnership_USER, ILibWebClient_WebSocket_FragmentFlag_Complete)); }
else { duk_push_int(ctx, (int)ILibTransport_DoneState_ERROR); }
}
else if (duk_is_string(ctx, 0))
{
// We are trying to send a string
buffer = (char*)duk_get_lstring(ctx, 0, &bufferLen);
duk_push_int(ctx, (int)ILibWebClient_WebSocket_Send(agent->controlChannel, ILibWebClient_WebSocket_DataType_TEXT, buffer, (int)bufferLen, ILibAsyncSocket_MemoryOwnership_USER, ILibWebClient_WebSocket_FragmentFlag_Complete));
}
else
{
// We are trying to send an object, perform JSON serialization first
duk_dup(ctx, 0); // [object]
duk_json_encode(ctx, -1); // [json]
buffer = (char*)duk_get_lstring(ctx, -1, &bufferLen);
duk_push_int(ctx, (int)ILibWebClient_WebSocket_Send(agent->controlChannel, ILibWebClient_WebSocket_DataType_TEXT, buffer, (int)bufferLen, ILibAsyncSocket_MemoryOwnership_USER, ILibWebClient_WebSocket_FragmentFlag_Complete));
}
return 1;
}
void ILibDuktape_MeshAgent_Ready(ILibDuktape_EventEmitter *sender, char *eventName, void *hookedCallback)
{
MeshAgentHostContainer *agent;
duk_push_heapptr(sender->ctx, sender->object); // [agent]
duk_get_prop_string(sender->ctx, -1, MESH_AGENT_PTR); // [MeshAgent][ptr]
agent = (MeshAgentHostContainer*)duk_get_pointer(sender->ctx, -1);
duk_pop(sender->ctx); // [MeshAgent]
if (agent->controlChannel != NULL)
{
// MeshAgent is already 'Ready'
duk_push_heapptr(sender->ctx, hookedCallback); // [MeshAgent][callback]
duk_swap_top(sender->ctx, -2); // [callback][this]
if (duk_pcall_method(sender->ctx, 0) != 0) { ILibDuktape_Process_UncaughtExceptionEx(sender->ctx, "Error: MeshAgent_OnReady"); }
}
duk_pop(sender->ctx); // ...
}
#ifdef _LINKVM
ILibTransport_DoneState ILibDuktape_MeshAgent_RemoteDesktop_KVM_WriteSink(char *buffer, int bufferLen, void *reserved)
{
RemoteDesktop_Ptrs *ptrs = (RemoteDesktop_Ptrs*)reserved;
if (!ILibMemory_CanaryOK(ptrs)) { return(ILibTransport_DoneState_ERROR); }
if (ptrs->stream != NULL)
{
if (ILibDuktape_DuplexStream_WriteData(ptrs->stream, buffer, bufferLen) != ILibTransport_DoneState_ERROR)
{
return ILibTransport_DoneState_COMPLETE; // Always returning complete, because we'll let the stream object handle flow control
}
else
{
return ILibTransport_DoneState_ERROR;
}
}
return ILibTransport_DoneState_ERROR;
}
ILibTransport_DoneState ILibDuktape_MeshAgent_RemoteDesktop_WriteSink(ILibDuktape_DuplexStream *stream, char *buffer, int bufferLen, void *user)
{
#ifdef _LINKVM
#ifdef WIN32
kvm_relay_feeddata(buffer, bufferLen, ILibDuktape_MeshAgent_RemoteDesktop_KVM_WriteSink, user);
#else
#ifdef __APPLE__
if (((RemoteDesktop_Ptrs*)user)->kvmPipe == NULL)
{
// Write to AF_UNIX Domain Socket
duk_push_external_buffer(stream->writableStream->ctx); // [ext]
duk_config_buffer(stream->writableStream->ctx, -1, buffer, (duk_size_t)bufferLen);
duk_push_heapptr(stream->writableStream->ctx, stream->writableStream->obj); // [ext][rd]
duk_get_prop_string(stream->writableStream->ctx, -1, KVM_IPC_SOCKET); // [ext][rd][IPC]
duk_get_prop_string(stream->writableStream->ctx, -1, "write"); // [ext][rd][IPC][write]
duk_swap_top(stream->writableStream->ctx, -2); // [ext][rd][write][this]
duk_push_buffer_object(stream->writableStream->ctx, -4, 0, (duk_size_t)bufferLen, DUK_BUFOBJ_NODEJS_BUFFER);// [ext][rd][write][this][buffer]
if (duk_pcall_method(stream->writableStream->ctx, 1) != 0) { ILibDuktape_Process_UncaughtExceptionEx(stream->writableStream->ctx, "Error Writing Data"); }
// [ext][rd][ret]
duk_pop_n(stream->writableStream->ctx, 3); // ...
}
else
#endif
{
kvm_relay_feeddata(buffer, bufferLen);
}
#endif
#endif
return ILibTransport_DoneState_COMPLETE;
}
void ILibDuktape_MeshAgent_RemoteDesktop_EndSink(ILibDuktape_DuplexStream *stream, void *user)
{
// Peer disconnected the data channel
RemoteDesktop_Ptrs *ptrs = (RemoteDesktop_Ptrs*)user;
if (ptrs->ctx != NULL)
{
duk_push_heapptr(ptrs->ctx, ptrs->MeshAgentObject); // [MeshAgent]
duk_get_prop_string(ptrs->ctx, -1, REMOTE_DESKTOP_STREAM); // [MeshAgent][RD]
if (duk_has_prop_string(ptrs->ctx, -1, KVM_IPC_SOCKET))
{
duk_get_prop_string(ptrs->ctx, -1, KVM_IPC_SOCKET); // [MeshAgent][RD][IPC]
duk_get_prop_string(ptrs->ctx, -1, "end"); // [MeshAgent][RD][IPC][end]
duk_swap_top(ptrs->ctx, -2); // [MeshAgent][RD][end][this]
duk_pcall_method(ptrs->ctx, 0); duk_pop(ptrs->ctx); // [MeshAgent][RD]
duk_peval_string(ptrs->ctx, "require('MeshAgent').SendCommand({ 'action': 'msg', 'type' : 'console', 'value' : 'Closing IPC Socket' });"); duk_pop(ptrs->ctx);
}
duk_pop(ptrs->ctx); // [MeshAgent]
duk_del_prop_string(ptrs->ctx, -1, REMOTE_DESKTOP_STREAM);
duk_pop(ptrs->ctx); // ...
memset(ptrs, 0, sizeof(RemoteDesktop_Ptrs));
}
kvm_cleanup();
}
void ILibDuktape_MeshAgent_RemoteDesktop_PauseSink(ILibDuktape_DuplexStream *sender, void *user)
{
//printf("KVM/PAUSE\n");
#ifdef _POSIX
if (((RemoteDesktop_Ptrs*)user)->kvmPipe != NULL) { ILibProcessPipe_Pipe_Pause(((RemoteDesktop_Ptrs*)user)->kvmPipe); }
#ifdef __APPLE__
else
{
duk_push_heapptr(sender->writableStream->ctx, sender->writableStream->obj); // [rd]
duk_get_prop_string(sender->writableStream->ctx, -1, KVM_IPC_SOCKET); // [rd][IPC]
duk_get_prop_string(sender->writableStream->ctx, -1, "pause"); // [rd][IPC][pause]
duk_swap_top(sender->writableStream->ctx, -2); // [rd][pause][this]
duk_pcall_method(sender->writableStream->ctx, 0); // [rd][ret]
duk_pop_2(sender->writableStream->ctx); // ...
}
#endif
#else
kvm_pause(1);
#endif
}
void ILibDuktape_MeshAgent_RemoteDesktop_ResumeSink(ILibDuktape_DuplexStream *sender, void *user)
{
//printf("KVM/RESUME\n");
#ifdef _POSIX
if (((RemoteDesktop_Ptrs*)user)->kvmPipe != NULL) { ILibProcessPipe_Pipe_Resume(((RemoteDesktop_Ptrs*)user)->kvmPipe); }
#ifdef __APPLE__
else
{
duk_push_heapptr(sender->writableStream->ctx, sender->writableStream->obj); // [rd]
duk_get_prop_string(sender->writableStream->ctx, -1, KVM_IPC_SOCKET); // [rd][IPC]
duk_get_prop_string(sender->writableStream->ctx, -1, "resume"); // [rd][IPC][resume]
duk_swap_top(sender->writableStream->ctx, -2); // [rd][resume][this]
duk_pcall_method(sender->writableStream->ctx, 0); // [rd][ret]
duk_pop_2(sender->writableStream->ctx); // ...
}
#endif
#else
kvm_pause(0);
#endif
}
duk_ret_t ILibDuktape_MeshAgent_RemoteDesktop_Finalizer(duk_context *ctx)
{
RemoteDesktop_Ptrs *ptrs;
duk_get_prop_string(ctx, 0, REMOTE_DESKTOP_ptrs);
ptrs = (RemoteDesktop_Ptrs*)Duktape_GetBuffer(ctx, -1, NULL);
if (ptrs->ctx != NULL)
{
duk_push_heapptr(ptrs->ctx, ptrs->MeshAgentObject); // [MeshAgent]
duk_del_prop_string(ptrs->ctx, -1, REMOTE_DESKTOP_STREAM);
duk_pop(ptrs->ctx); // ...
#ifdef _LINKVM
kvm_cleanup();
#endif
}
return 0;
}
void ILibDuktape_MeshAgent_RemoteDesktop_PipeHook(ILibDuktape_readableStream *stream, void *wstream, void *user)
{
#ifdef _LINKVM
#ifdef WIN32
ILibDuktape_DuplexStream *ds = (ILibDuktape_DuplexStream*)user;
kvm_relay_reset(ILibDuktape_MeshAgent_RemoteDesktop_KVM_WriteSink, ds->user);
#else
kvm_relay_reset();
#endif
#else
UNREFERENCED_PARAMETER(stream);
UNREFERENCED_PARAMETER(user);
#endif
}
#endif
int ILibDuktape_MeshAgent_remoteDesktop_unshiftSink(ILibDuktape_DuplexStream *sender, int unshiftBytes, void *user)
{
return(0);
}
#ifdef __APPLE__
duk_ret_t ILibDuktape_MeshAgent_getRemoteDesktop_DomainIPC_EndSink(duk_context *ctx)
{
MeshAgent_sendConsoleText(ctx, "IPC Connection Closed...");
duk_push_this(ctx);
RemoteDesktop_Ptrs *ptrs = (RemoteDesktop_Ptrs*)Duktape_GetPointerProperty(ctx, -1, KVM_IPC_SOCKET);
// Check to see if there is a user logged in
if (duk_peval_string(ctx, "require('user-sessions').consoleUid()") == 0)
{
int console_uid = duk_get_int(ctx, -1);
char tmp[255];
sprintf_s(tmp, sizeof(tmp), "User id: %d has logged in", console_uid);
MeshAgent_sendConsoleText(ctx, tmp);
duk_push_heapptr(ctx, ptrs->MeshAgentObject);
duk_get_prop_string(ctx, -1, MESH_AGENT_PTR);
MeshAgentHostContainer *agent = (MeshAgentHostContainer*)duk_get_pointer(ctx, -1);
if (ptrs != NULL && ptrs->ctx != NULL && ptrs->stream != NULL)
{
ptrs->kvmPipe = kvm_relay_setup(agent->exePath, agent->pipeManager, ILibDuktape_MeshAgent_RemoteDesktop_KVM_WriteSink, ptrs, console_uid);
}
}
else
{
if (ptrs != NULL && ptrs->ctx != NULL && ptrs->stream != NULL)
{
ILibDuktape_DuplexStream_WriteEnd(ptrs->stream);
}
}
return(0);
}
duk_ret_t ILibDuktape_MeshAgent_getRemoteDesktop_DomainIPC_DataSink(duk_context *ctx)
{
duk_push_this(ctx);
RemoteDesktop_Ptrs *ptrs = (RemoteDesktop_Ptrs*)Duktape_GetPointerProperty(ctx, -1, KVM_IPC_SOCKET);
char *buffer;
duk_size_t bufferLen, consumed = 0;
unsigned short size;
buffer = (char*)Duktape_GetBuffer(ctx, 0, &bufferLen);
// We need to properly frame the data before we propagate it up
if (bufferLen > 4)
{
size = ntohs(((unsigned short*)(buffer))[1]);
if (size <= bufferLen)
{
// We have all the data, to be able to frame it
consumed = size;
ILibDuktape_MeshAgent_RemoteDesktop_KVM_WriteSink(buffer, (int)size, ptrs);
}
}
if ((bufferLen - consumed) > 0)
{
// We need to unshift() the remainder to continue processing
duk_push_external_buffer(ctx); // [ext]
duk_config_buffer(ctx, -1, buffer, bufferLen - consumed);
duk_push_this(ctx); // [ext][IPC]
duk_get_prop_string(ctx, -1, "unshift"); // [ext][IPC][unshift]
duk_swap_top(ctx, -2); // [ext][unshift][this]
duk_push_buffer_object(ctx, -3, 0, bufferLen - consumed, DUK_BUFOBJ_NODEJS_BUFFER); // [ext][unshift][this][buffer]
duk_call_method(ctx, 1); // [ext][ret]
}
return(0);
}
duk_ret_t ILibDuktape_MeshAgent_getRemoteDesktop_DomainIPC_Sink(duk_context *ctx)
{
// This is called when we successfully attach an IPC Domain Socket to the Windows Server, running in the LoginWindow context
RemoteDesktop_Ptrs *ptrs;
MeshAgent_sendConsoleText(ctx, "IPC Connection Established...");
duk_push_current_function(ctx);
ptrs = (RemoteDesktop_Ptrs*)Duktape_GetPointerProperty(ctx, -1, "ptrs");
duk_push_this(ctx);
duk_push_pointer(ctx, ptrs); duk_put_prop_string(ctx, -2, KVM_IPC_SOCKET);
ILibDuktape_EventEmitter_AddOnEx(ctx, -1, "data", ILibDuktape_MeshAgent_getRemoteDesktop_DomainIPC_DataSink);
ILibDuktape_EventEmitter_AddOnEx(ctx, -1, "end", ILibDuktape_MeshAgent_getRemoteDesktop_DomainIPC_EndSink);
return(0);
}
#endif
#if defined(_LINKVM) && defined(_POSIX) && !defined(__APPLE__)
void ILibDuktape_MeshAgent_RemoteDesktop_SendError(RemoteDesktop_Ptrs* ptrs, char *msg)
{
int msgLen = strnlen_s(msg, 255);
char buffer[512];
((unsigned short*)buffer)[0] = (unsigned short)htons((unsigned short)MNG_ERROR); // Write the type
((unsigned short*)buffer)[1] = (unsigned short)htons((unsigned short)(msgLen + 4)); // Write the size
memcpy_s(buffer + 4, 512 - 4, msg, msgLen);
ILibDuktape_MeshAgent_RemoteDesktop_KVM_WriteSink(buffer, msgLen + 4, ptrs);
}
#endif
duk_ret_t ILibDuktape_MeshAgent_getRemoteDesktop(duk_context *ctx)
{
#ifndef _LINKVM
duk_push_null(ctx);
return 1;
#else
RemoteDesktop_Ptrs *ptrs;
MeshAgentHostContainer *agent;
#ifdef WIN32
int TSID = duk_is_number(ctx, 0) ? duk_require_int(ctx, 0) : -1;
#endif
#if !defined(WIN32) && !defined(__APPLE__)
if (duk_peval_string(ctx, "require('monitor-info')") == 0)
{
char *libx11 = Duktape_GetStringPropertyValue(ctx, -1, "Location_X11LIB", NULL);
char *libx11tst = Duktape_GetStringPropertyValue(ctx, -1, "Location_X11TST", NULL);
char *libx11ext = Duktape_GetStringPropertyValue(ctx, -1, "Location_X11EXT", NULL);
char *libxfixes = Duktape_GetStringPropertyValue(ctx, -1, "Location_X11FIXES", NULL);
kvm_set_x11_locations(libx11, libx11tst, libx11ext, libxfixes);
}
#endif
duk_push_this(ctx); // [MeshAgent]
if (duk_has_prop_string(ctx, -1, REMOTE_DESKTOP_STREAM))
{
duk_get_prop_string(ctx, -1, REMOTE_DESKTOP_STREAM); // [MeshAgent][RemoteDesktop]
duk_get_prop_string(ctx, -1, REMOTE_DESKTOP_ptrs);
ptrs = (RemoteDesktop_Ptrs*)Duktape_GetBuffer(ctx, -1, NULL);
duk_pop(ctx);
return 1;
}
duk_get_prop_string(ctx, -1, MESH_AGENT_PTR);
agent = (MeshAgentHostContainer*)duk_get_pointer(ctx, -1);
duk_pop(ctx);
duk_push_object(ctx); // [MeshAgent][RemoteDesktop]
ILibDuktape_WriteID(ctx, "MeshAgent.kvmSession");
duk_dup(ctx, -1); // [MeshAgent][RemoteDesktop][RemoteDesktop]
duk_put_prop_string(ctx, -3, REMOTE_DESKTOP_STREAM); // [MeshAgent][RemoteDesktop]
ptrs = (RemoteDesktop_Ptrs*)Duktape_PushBuffer(ctx, sizeof(RemoteDesktop_Ptrs));// [MeshAgent][RemoteDesktop][buffer]
duk_put_prop_string(ctx, -2, REMOTE_DESKTOP_ptrs); // [MeshAgent][RemoteDesktop]
memset(ptrs, 0, sizeof(RemoteDesktop_Ptrs));
ptrs->MeshAgentObject = duk_get_heapptr(ctx, -2);
ptrs->ctx = ctx;
ptrs->object = duk_get_heapptr(ctx, -1);
ptrs->stream = ILibDuktape_DuplexStream_InitEx(ctx, ILibDuktape_MeshAgent_RemoteDesktop_WriteSink, ILibDuktape_MeshAgent_RemoteDesktop_EndSink, ILibDuktape_MeshAgent_RemoteDesktop_PauseSink, ILibDuktape_MeshAgent_RemoteDesktop_ResumeSink, ILibDuktape_MeshAgent_remoteDesktop_unshiftSink, ptrs);
ILibDuktape_CreateFinalizer(ctx, ILibDuktape_MeshAgent_RemoteDesktop_Finalizer);
ptrs->stream->readableStream->PipeHookHandler = ILibDuktape_MeshAgent_RemoteDesktop_PipeHook;
// Setup Remote Desktop
#ifdef WIN32
#ifdef _WINSERVICE
kvm_relay_setup(agent->exePath, agent->runningAsConsole ? NULL : agent->pipeManager, ILibDuktape_MeshAgent_RemoteDesktop_KVM_WriteSink, ptrs, TSID);
#else
kvm_relay_setup(agent->exePath, NULL, ILibDuktape_MeshAgent_RemoteDesktop_KVM_WriteSink, ptrs, TSID);
#endif
#else
int console_uid = 0;
if (duk_peval_string(ctx, "require('user-sessions').consoleUid();") == 0) { console_uid = duk_get_int(ctx, -1); }
duk_pop(ctx);
#ifdef __APPLE__
// MacOS
if (console_uid == 0)
{
MeshAgent_sendConsoleText(ctx, "Establishing IPC-x-Connection to LoginWindow for KVM");
char *ipc = (char*)kvm_relay_setup(agent->exePath, agent->pipeManager, ILibDuktape_MeshAgent_RemoteDesktop_KVM_WriteSink, ptrs, console_uid);
duk_eval_string(ctx, "require('net');"); // [rd][net]
duk_get_prop_string(ctx, -1, "createConnection"); // [rd][net][createConnection]
duk_swap_top(ctx, -2); // [rd][createConnection][this]
duk_push_object(ctx); // [rd][createConnection][this][options]
duk_push_string(ctx, ipc); duk_put_prop_string(ctx, -2, "path"); // [rd][createConnection][this][options]
duk_push_c_function(ctx, ILibDuktape_MeshAgent_getRemoteDesktop_DomainIPC_Sink, DUK_VARARGS); // [rd][createConnection][this][options][callback]
duk_push_pointer(ctx, ptrs); duk_put_prop_string(ctx, -2, "ptrs");
duk_call_method(ctx, 2); // [rd][icpSocket]
duk_put_prop_string(ctx, -2, KVM_IPC_SOCKET); // [rd]
//ptrs->kvmDomainSocket = (int)(uint64_t)kvm_relay_setup(agent->exePath, agent->pipeManager, ILibDuktape_MeshAgent_RemoteDesktop_KVM_WriteSink, ptrs, console_uid);
}
else
{
ptrs->kvmPipe = kvm_relay_setup(agent->exePath, agent->pipeManager, ILibDuktape_MeshAgent_RemoteDesktop_KVM_WriteSink, ptrs, console_uid);
}
#else
// For Linux, we need to determine where the XAUTHORITY is:
char *updateXAuth = NULL;
char *updateDisplay = NULL;
int needPop = 0;
if (getenv("XAUTHORITY") == NULL || getenv("DISPLAY") == NULL)
{
if (duk_peval_string(ctx, "require('monitor-info').getXInfo") == 0)
{
duk_push_int(ctx, console_uid);
if (duk_pcall(ctx, 1) == 0)
{
if (!duk_is_null(ctx, -1))
{
updateXAuth = Duktape_GetStringPropertyValue(ctx, -1, "xauthority", NULL);
updateDisplay = Duktape_GetStringPropertyValue(ctx, -1, "display", NULL);
if (console_uid != 0 && updateXAuth == NULL)
{
ILibDuktape_MeshAgent_RemoteDesktop_SendError(ptrs, "Xauthority not found! Is your DM configured to use X?");
duk_pop(ctx);
return(1);
}
}
else
{
if (console_uid != 0)
{
ILibDuktape_MeshAgent_RemoteDesktop_SendError(ptrs, "This system does not appear to have an XServer running");
}
else
{
ILibDuktape_MeshAgent_RemoteDesktop_SendError(ptrs, "This system does not appear to have an XServer instance running when no users are logged in");
}
}
}
else
{
MeshAgent_sendConsoleText(ctx, "Error trying to determine XAUTHORITY/DISPLAY: %s ", duk_safe_to_string(ctx, -1));
}
}
else
{
MeshAgent_sendConsoleText(ctx, "Error trying to determine XAUTHORITY/DISPLAY: %s ", duk_safe_to_string(ctx, -1));
}
needPop = 1;
}
//MeshAgent_sendConsoleText(ctx, "Using uid: %d, XAUTHORITY: %s\n", console_uid, getenv("XAUTHORITY")==NULL? updateXAuth : getenv("XAUTHORITY"));
ptrs->kvmPipe = kvm_relay_setup(agent->pipeManager, ILibDuktape_MeshAgent_RemoteDesktop_KVM_WriteSink, ptrs, console_uid, updateXAuth, updateDisplay);
if (needPop!= 0) {duk_pop(ctx); }
#endif
#endif
return 1;
#endif
}
duk_ret_t ILibDuktape_MeshAgent_ConnectedServer(duk_context *ctx)
{
int len;
MeshAgentHostContainer *agent;
duk_push_this(ctx);
duk_get_prop_string(ctx, -1, MESH_AGENT_PTR);
agent = (MeshAgentHostContainer*)duk_get_pointer(ctx, -1);
#ifndef MICROSTACK_NOTLS
if (agent->controlChannel != NULL && agent->serverAuthState == 3)
#else
if (agent->controlChannel != NULL)
#endif
{
len = ILibSimpleDataStore_Get(agent->masterDb, "MeshServer", ILibScratchPad2, sizeof(ILibScratchPad2));
if (len == 0) { duk_push_null(ctx); return 1; }
parser_result *rs = ILibParseString(ILibScratchPad2, 0, len, ",", 1);
parser_result_field *f = ILibParseString_GetResultIndex(rs, agent->serverIndex);
f->datalength = ILibTrimString(&(f->data), f->datalength);
f->data[f->datalength] = 0;
duk_push_lstring(ctx, f->data, f->datalength);
ILibDestructParserResults(rs);
}
else
{
duk_push_null(ctx);
}
return 1;
}
duk_ret_t ILibDuktape_MeshAgent_NetInfo(duk_context *ctx)
{
#if defined(__APPLE__) || defined(_FREEBSD)
char getGatewayInfo[] = "(function _getGatewayInfo(){\
var gwname;\
var child = require('child_process').execFile('/bin/sh', ['sh']);\
child.stdout.str = ''; child.stdout.on('data', function (c) { this.str += c.toString(); });\
child.stdin.write('route get default | grep gateway: | awk -F: \\'{ gsub(/^[ \t]/, \"\", $2); print $2; }\\'\\nexit\\n');\
child.waitExit();\
gwname = child.stdout.str.trim();\
child = require('child_process').execFile('/bin/sh', ['sh']); \
child.stdout.str = ''; child.stdout.on('data', function(c) { this.str += c.toString(); }); \
child.stdin.write('arp -n ' + gwname + ' | awk \\'{ gsub(/[(]/, \"\", $2); gsub(/[)]/, \"\", $2); printf \"%s,%s,%s\", $6, $4, $2; }\\'\\nexit\\n');\
child.waitExit();\
var tmp = child.stdout.str.trim().split(',');\
child = require('child_process').execFile('/bin/sh', ['sh']);\
child.stdout.str = ''; child.stdout.on('data', function (c) { this.str += c.toString(); });\
child.stdin.write('networksetup -listallhardwareports | tr \\'\\\\n\\' \\'\\@\\' | awk \\'{ gsub(/@@/, \"\\\\n\", $0); gsub(/@Hardware Port/, \"Hardware Port\", $0); print $0; }\\' | awk -F@ \\'{ split($2, dv, \":\"); gsub(/^[ ]/, \"\", dv[2]); if(dv[2]==\"' + tmp[0] + '\") { split($1, hw, \":\"); gsub(/^ /, \"\", hw[2]); print hw[2]; } }\\'\\nexit\\n');\
child.waitExit();\
var dvname = child.stdout.str.trim();\
var tmp2 = tmp[1].split(':');\
for(var i in tmp2)\
{\
tmp2[i] = tmp2[i].padStart(2, '0');\
}\
tmp[1] = tmp2.join('');\
var ni = require('os').networkInterfaces();\
for(var i in ni[tmp[0]])\
{\
if(ni[tmp[0]][i].family == 'IPv4')\
{\
var ret = {v4addr: ni[tmp[0]][i].address, v4mask: ni[tmp[0]][i].netmask, mac: ni[tmp[0]][i].mac.split(':').join(''), gatewaymac: tmp[1], name: tmp[0]};\
if(dvname != '') {ret['desc'] = dvname;}\
return({netif: {0: ret}});\
}\
}\
return({});})";
duk_eval_string(ctx, getGatewayInfo); // [func]
duk_call(ctx, 0); // [result]
return(1);
#else
char *data;
int len = MeshInfo_GetSystemInformation(&data);
if (len > 0)
{
duk_push_lstring(ctx, data, len);
duk_json_decode(ctx, -1);
free(data);
}
else
{
duk_push_null(ctx);
}
return 1;
#endif
}
// Javascript ExecPowerState(int), executes power state command on the computer (Sleep, Hibernate...)
duk_ret_t ILibDuktape_MeshAgent_ExecPowerState(duk_context *ctx)
{
#ifdef __APPLE__
duk_push_null(ctx);
#else
int force = 0;
int numArgs = (int)duk_get_top(ctx);
duk_push_this(ctx); // [MeshAgent]
if (numArgs == 2 && duk_is_number(ctx, 1)) { force = duk_get_int(ctx, 1); }
if (duk_is_number(ctx, 0))
{
duk_push_int(ctx, MeshInfo_PowerState((AgentPowerStateActions)duk_get_int(ctx, 0), force));
}
else
{
duk_push_null(ctx);
}
#endif
return 1;
}
duk_ret_t ILibDuktape_MeshAgent_ServerUrl(duk_context *ctx)
{
duk_push_this(ctx); // [MeshAgent]
duk_get_prop_string(ctx, -1, MESH_AGENT_PTR); // [MeshAgent][ptr]
MeshAgentHostContainer *agent = (MeshAgentHostContainer*)duk_get_pointer(ctx, -1);
duk_push_string(ctx, agent->serveruri); // [MeshAgent][ptr][uri]
return(1);
}
duk_ret_t ILibDuktape_MeshAgent_ServerIP(duk_context *ctx)
{
duk_push_this(ctx); // [MeshAgent]
duk_get_prop_string(ctx, -1, MESH_AGENT_PTR); // [MeshAgent][ptr]
MeshAgentHostContainer *agent = (MeshAgentHostContainer*)duk_get_pointer(ctx, -1);
duk_push_string(ctx, agent->serverip); // [MeshAgent][ptr][ip]
return(1);
}
duk_ret_t ILibDuktape_MeshAgent_isControlChannelConnected(duk_context *ctx)
{
duk_push_this(ctx); // [agent]
MeshAgentHostContainer *agent = (MeshAgentHostContainer*)Duktape_GetPointerProperty(ctx, -1, MESH_AGENT_PTR);
if (agent != NULL)
{
duk_push_boolean(ctx, agent->serverAuthState == 3 ? 1 : 0);
return(1);
}
else
{
return(0);
}
}
duk_ret_t ILibDuktape_MeshAgent_eval(duk_context *ctx)
{
duk_size_t evalStrLen;
char *evalStr = (char*)duk_get_lstring(ctx, 0, &evalStrLen);
printf("eval(): %s\n", evalStr);
duk_eval_string(ctx, evalStr);
return(1);
}
duk_context* ScriptEngine_Stop(MeshAgentHostContainer *agent, char *contextGUID);
void ILibDuktape_MeshAgent_dumpCoreModuleEx(void *chain, void *user)
{
MeshAgentHostContainer* agentHost = (MeshAgentHostContainer*)user;
char *CoreModule;
ScriptEngine_Stop((MeshAgentHostContainer*)user, MeshAgent_JavaCore_ContextGuid);
printf("CoreModule was manually dumped, restarting!\n");
int CoreModuleLen = ILibSimpleDataStore_Get(agentHost->masterDb, "CoreModule", NULL, 0);
if (CoreModuleLen > 0)
{
// There is a core module, launch it now.
CoreModule = (char*)ILibMemory_Allocate(CoreModuleLen, 0, NULL, NULL);
ILibSimpleDataStore_Get(agentHost->masterDb, "CoreModule", CoreModule, CoreModuleLen);
if (ILibDuktape_ScriptContainer_CompileJavaScriptEx(agentHost->meshCoreCtx, CoreModule + 4, CoreModuleLen - 4, "CoreModule.js", 13) != 0 ||
ILibDuktape_ScriptContainer_ExecuteByteCode(agentHost->meshCoreCtx) != 0)
{
ILibRemoteLogging_printf(ILibChainGetLogger(agentHost->chain), ILibRemoteLogging_Modules_Microstack_Generic | ILibRemoteLogging_Modules_ConsolePrint,
ILibRemoteLogging_Flags_VerbosityLevel_1, "Error Executing MeshCore: %s", duk_safe_to_string(agentHost->meshCoreCtx, -1));
duk_pop(agentHost->meshCoreCtx);
}
free(CoreModule);
}
}
duk_ret_t ILibDuktape_MeshAgent_dumpCoreModule(duk_context *ctx)
{
duk_push_this(ctx); // [agent]
duk_get_prop_string(ctx, -1, MESH_AGENT_PTR); // [agent][ptr]
MeshAgentHostContainer *agent = (MeshAgentHostContainer*)duk_get_pointer(ctx, -1);
agent->localScript = 0;
ILibChain_RunOnMicrostackThreadEx(agent->chain, ILibDuktape_MeshAgent_dumpCoreModuleEx, agent);
return(0);
}
void ILibDuktape_MeshAgent_ConnectedHook(ILibDuktape_EventEmitter *sender, char *eventName, void *hookedCallback)
{
int top = duk_get_top(sender->ctx);
duk_push_heapptr(sender->ctx, hookedCallback); // [cb]
duk_push_heapptr(sender->ctx, sender->object); // [cb][this]
MeshAgentHostContainer *agent = (MeshAgentHostContainer*)Duktape_GetPointerProperty(sender->ctx, -1, MESH_AGENT_PTR);
if (agent->serverAuthState == 3)
{
duk_push_int(sender->ctx, 1); // [cb][this][1]
duk_pcall_method(sender->ctx, 1);
}
duk_set_top(sender->ctx, top);
}
duk_ret_t ILibDuktape_MeshAgent_ServerInfo(duk_context *ctx)
{
duk_push_this(ctx); // [agent]
MeshAgentHostContainer *agent = (MeshAgentHostContainer*)Duktape_GetPointerProperty(ctx, -1, MESH_AGENT_PTR);
duk_push_object(ctx);
util_tohex(agent->meshId, sizeof(agent->meshId), ILibScratchPad);
duk_push_string(ctx, ILibScratchPad); duk_put_prop_string(ctx, -2, "MeshID");
util_tohex(agent->serverHash, sizeof(agent->serverHash), ILibScratchPad);
duk_push_string(ctx, ILibScratchPad); duk_put_prop_string(ctx, -2, "ServerID");
duk_push_string(ctx, agent->serveruri); duk_put_prop_string(ctx, -2, "ServerUri");
duk_push_string(ctx, agent->serverip); duk_put_prop_string(ctx, -2, "ServerIP");
return(1);
}
duk_ret_t ILibDuktape_MeshAgent_GenerateCertsForDiagnosticAgent(duk_context *ctx)
{
char tmp[UTIL_SHA384_HASHSIZE];
struct util_cert tmpCert;
#ifdef WIN32
char *rootSubject = (char*)duk_require_string(ctx, 0);
duk_push_this(ctx);
MeshAgentHostContainer *agent = (MeshAgentHostContainer*)Duktape_GetPointerProperty(ctx, -1, MESH_AGENT_PTR);
#endif
duk_push_object(ctx);
#ifdef WIN32
wincrypto_object j = NULL;
char *cert_der = NULL, *cert_pfx = NULL;
if (agent->noCertStore == 0 && (j=wincrypto_open(TRUE, rootSubject)) != NULL) // Force certificate re-generation
{
int l;
do {
// Finish off work with our own certificate
l = wincrypto_getcert(&cert_der, j);
if (l > 0)
{
util_from_cer(cert_der, l, &tmpCert);
util_keyhash(tmpCert, tmp);
if (((int*)tmp)[0] == 0) { wincrypto_close(j); j=wincrypto_open(1, rootSubject); }
}
} while (l != 0 && ((int*)tmp)[0] == 0); // This removes any chance that the self_id starts with 32 bits of zeros.
if (l > 0)
{
// Save the root cert in CER format
duk_push_object(ctx); // [object][root]
char *rootBuffer = duk_push_fixed_buffer(ctx, l); // [object][root][buffer]
duk_push_buffer_object(ctx, -1, 0, l, DUK_BUFOBJ_NODEJS_BUFFER); // [object][root][buffer][nodeBuffer]
duk_put_prop_string(ctx, -3, "der"); // [object][root][buffer]
duk_pop(ctx); // [object][root]
duk_put_prop_string(ctx, -2, "root"); // [object]
memcpy_s(rootBuffer, l, cert_der, l);
// Generate a new TLS certificate & save it.
l = wincrypto_mkCert(j, rootSubject, L"CN=localhost", CERTIFICATE_TLS_SERVER, L"hidden", &cert_pfx);
duk_push_object(ctx); // [object][tls]
char *buffer = duk_push_fixed_buffer(ctx, l); // [object][tls][buffer]
duk_push_buffer_object(ctx, -1, 0, l, DUK_BUFOBJ_NODEJS_BUFFER); // [object][tls][buffer][nodeBuffer]
duk_put_prop_string(ctx, -3, "pfx"); // [object][tls][buffer]
duk_pop(ctx); // [object][tls]
duk_push_string(ctx, "hidden"); duk_put_prop_string(ctx, -2, "passphrase");
duk_put_prop_string(ctx, -2, "tls"); // [object]
memcpy_s(buffer, l, cert_pfx, l);
util_free(cert_pfx);
wincrypto_close(j);
return(1);
}
// wincrypto error
return(ILibDuktape_Error(ctx, "Error Generating Certificates using WinCrypto"));
}
else
{
#endif
// Generate a new self-signed root certificate for this node using OpenSSL
do
{
if (util_mkCert(NULL, &(tmpCert), 3072, 10000, "MeshNodeCertificate", CERTIFICATE_ROOT, NULL) == 0)
{
return(ILibDuktape_Error(ctx, "Error Generating Certificates using OpenSSL"));
}
util_keyhash(tmpCert, tmp);
} while (((int*)tmp)[0] == 0); // This removes any chance that the self_id starts with 32 bits of zeros.
duk_push_object(ctx); // [object][root]
char *pfx = NULL;
int pfxLen = util_to_p12(tmpCert, "hidden", &pfx);
char *jspfx = duk_push_fixed_buffer(ctx, pfxLen); // [object][root][buffer]
duk_push_buffer_object(ctx, -1, 0, pfxLen, DUK_BUFOBJ_NODEJS_BUFFER); // [object][root][buffer][nodeBuffer]
duk_put_prop_string(ctx, -3, "pfx"); // [object][root][buffer]
duk_pop(ctx); // [object][root]
duk_push_string(ctx, "hidden"); duk_put_prop_string(ctx, -2, "passphrase");
duk_put_prop_string(ctx, -2, "root"); // [object]
memcpy_s(jspfx, pfxLen, pfx, pfxLen);
util_free(pfx);
util_freecert(&tmpCert);
return(1);
#ifdef WIN32
}
#endif
}
duk_ret_t ILibDuktape_MeshAgent_forceExit(duk_context *ctx)
{
int code = 0;
if (duk_get_top(ctx) > 0)
{
code = (int)duk_require_int(ctx, 0);
}
exit(code);
return(0);
}
duk_ret_t ILibDuktape_MeshAgent_hostname(duk_context *ctx)
{
duk_push_this(ctx);
MeshAgentHostContainer *agent = (MeshAgentHostContainer*)Duktape_GetPointerProperty(ctx, -1, MESH_AGENT_PTR);
duk_push_string(ctx, agent->hostname);
return(1);
}
#if defined(_LINKVM) && defined(_POSIX) && !defined(__APPLE__)
duk_ret_t ILibDuktape_MeshAgent_enableKvmSlaveLog(duk_context *ctx)
{
SLAVELOG = (int)duk_require_int(ctx, 0);
return(0);
}
#endif
duk_ret_t ILibDuktape_MeshAgent_getIdleTimeout(duk_context *ctx)
{
MeshAgentHostContainer *agent;
duk_push_this(ctx); // [MeshAgent]
agent = (MeshAgentHostContainer*)Duktape_GetPointerProperty(ctx, -1, MESH_AGENT_PTR);
duk_push_int(ctx, agent->controlChannel_idleTimeout_seconds);
return(1);
}
void ILibDuktape_MeshAgent_PUSH(duk_context *ctx, void *chain)
{
MeshAgentHostContainer *agent;
ILibDuktape_EventEmitter *emitter;
duk_push_heap_stash(ctx); // [stash]
if (duk_has_prop_string(ctx, -1, MESH_AGENT_SINGLETON))
{
duk_get_prop_string(ctx, -1, MESH_AGENT_SINGLETON); // [stash][MeshAgent]
duk_swap_top(ctx, -2); // [MeshAgent][stash]
duk_pop(ctx); // [MeshAgent]
return;
}
duk_get_prop_string(ctx, -1, "MeshAgentPtr"); // [stash][agentPtr]
agent = (MeshAgentHostContainer*)duk_get_pointer(ctx, -1);
duk_pop_2(ctx); // ...
duk_push_object(ctx); // [MeshAgent]
ILibDuktape_WriteID(ctx, "MeshAgent");
duk_push_pointer(ctx, agent); // [MeshAgent][ptr]
duk_put_prop_string(ctx, -2, MESH_AGENT_PTR); // [MeshAgent]
duk_push_heap_stash(ctx); // [MeshAgent][stash]
duk_dup(ctx, -2); // [MeshAgent][stash][MeshAgent]
duk_put_prop_string(ctx, -2, MESH_AGENT_SINGLETON); // [MeshAgent][stash]
duk_pop(ctx); // [MeshAgent]
emitter = ILibDuktape_EventEmitter_Create(ctx);
duk_push_boolean(ctx, agent->agentMode);
ILibDuktape_CreateReadonlyProperty(ctx, "agentMode");
if (agent->slaveMode == 0)
{
#ifndef MICROSTACK_NOTLS
if (agent->selftlscert.x509 != NULL) {
// We have a TLS certificate, use it for WebRTC
duk_push_pointer(ctx, &agent->selftlscert);
duk_put_prop_string(ctx, -2, ILibDuktape_MeshAgent_Cert_Server);
} else {
// We don't have a TLS certificate, use the root cert for WebRTC
duk_push_pointer(ctx, &agent->selfcert);
duk_put_prop_string(ctx, -2, ILibDuktape_MeshAgent_Cert_Server);
}
// Always use the root cert for agent authentication
duk_push_pointer(ctx, &agent->selfcert);
duk_put_prop_string(ctx, -2, ILibDuktape_MeshAgent_Cert_NonLeaf);
ILibDuktape_CreateInstanceMethod(ctx, "GenerateAgentCertificate", ILibDuktape_MeshAgent_GenerateCertsForDiagnosticAgent, 1);
#endif
ILibDuktape_EventEmitter_CreateEventEx(emitter, "Ready");
ILibDuktape_EventEmitter_CreateEventEx(emitter, "Connected");
ILibDuktape_EventEmitter_CreateEventEx(emitter, "Command");
ILibDuktape_EventEmitter_CreateEventEx(emitter, "DesktopSessionChanged");
ILibDuktape_EventEmitter_AddHook(emitter, "Connected", ILibDuktape_MeshAgent_ConnectedHook);
ILibDuktape_CreateEventWithGetter(ctx, "ServerInfo", ILibDuktape_MeshAgent_ServerInfo);
ILibDuktape_CreateEventWithGetter(ctx, "isControlChannelConnected", ILibDuktape_MeshAgent_isControlChannelConnected);
ILibDuktape_EventEmitter_AddHook(emitter, "Ready", ILibDuktape_MeshAgent_Ready);
ILibDuktape_CreateEventWithGetter(ctx, "ConnectedServer", ILibDuktape_MeshAgent_ConnectedServer);
ILibDuktape_CreateEventWithGetter(ctx, "ServerUrl", ILibDuktape_MeshAgent_ServerUrl);
ILibDuktape_CreateEventWithGetter(ctx, "ServerIP", ILibDuktape_MeshAgent_ServerIP);
ILibDuktape_CreateInstanceMethod(ctx, "getRemoteDesktopStream", ILibDuktape_MeshAgent_getRemoteDesktop, DUK_VARARGS);
ILibDuktape_CreateInstanceMethod(ctx, "AddCommandHandler", ILibDuktape_MeshAgent_AddCommandHandler, 1);
ILibDuktape_CreateInstanceMethod(ctx, "AddConnectHandler", ILibDuktape_MeshAgent_AddConnectHandler, 1);
ILibDuktape_CreateInstanceMethod(ctx, "SendCommand", ILibDuktape_MeshAgent_SendCommand, 1);
ILibDuktape_CreateFinalizer(ctx, ILibDuktape_MeshAgent_Finalizer);
ILibDuktape_CreateReadonlyProperty_int(ctx, "activeMicroLMS", (agent->microLMS != NULL ? 1 : 0));
ILibDuktape_CreateInstanceMethod(ctx, "restartCore", ILibDuktape_MeshAgent_dumpCoreModule, 0);
#ifdef _LINKVM
ILibDuktape_CreateReadonlyProperty_int(ctx, "hasKVM", 1);
ILibDuktape_EventEmitter_CreateEventEx(emitter, "kvmConnected");
#if defined(_POSIX) && !defined(__APPLE__)
ILibDuktape_CreateInstanceMethod(ctx, "enableKvmSlaveLog", ILibDuktape_MeshAgent_enableKvmSlaveLog, 1);
#endif
#else
ILibDuktape_CreateReadonlyProperty_int(ctx, "hasKVM", 0);
#endif
ILibDuktape_CreateEventWithGetter(ctx, "NetInfo", ILibDuktape_MeshAgent_NetInfo);
ILibDuktape_CreateEventWithGetter(ctx, "idleTimeout", ILibDuktape_MeshAgent_getIdleTimeout);
ILibDuktape_CreateInstanceMethod(ctx, "ExecPowerState", ILibDuktape_MeshAgent_ExecPowerState, DUK_VARARGS);
ILibDuktape_CreateInstanceMethod(ctx, "eval", ILibDuktape_MeshAgent_eval, 1);
ILibDuktape_CreateInstanceMethod(ctx, "forceExit", ILibDuktape_MeshAgent_forceExit, DUK_VARARGS);
ILibDuktape_CreateInstanceMethod(ctx, "hostname", ILibDuktape_MeshAgent_hostname, 0);
Duktape_CreateEnum(ctx, "ContainerPermissions", (char*[]) { "DEFAULT", "NO_AGENT", "NO_MARSHAL", "NO_PROCESS_SPAWNING", "NO_FILE_SYSTEM_ACCESS", "NO_NETWORK_ACCESS" }, (int[]) { 0x00, 0x10000000, 0x08000000, 0x04000000, 0x00000001, 0x00000002 }, 6);
#ifdef WIN32
#ifdef _WINSERVICE
duk_push_boolean(ctx, agent->runningAsConsole == 0);
#else
duk_push_false(ctx);
#endif
ILibDuktape_CreateReadonlyProperty(ctx, "isService");
#else
#ifndef __APPLE__
// Determine if we're running as service on Linux
if (duk_peval_string(ctx, "require('service-manager').manager.getService('meshagent').isMe();") == 0)
{
ILibDuktape_CreateReadonlyProperty(ctx, "isService");
}
else
{
duk_pop(ctx);
}
#endif
#endif
}
ILibDuktape_CreateInstanceMethod(ctx, "GenerateCertificate", ILibDuktape_MeshAgent_GenerateCertificate, 1);
duk_push_pointer(ctx, agent->masterDb); duk_put_prop_string(ctx, -2, "\xFF_MasterDB");
ILibRemoteLogging_printf(ILibChainGetLogger(agent->chain), ILibRemoteLogging_Modules_Microstack_Generic, ILibRemoteLogging_Flags_VerbosityLevel_1, "Acquired MeshAgent");
}
void ILibDuktape_MeshAgent_Init(duk_context* ctx, void *chain, MeshAgentHostContainer *agent)
{
duk_push_heap_stash(ctx); // [stash]
duk_push_pointer(ctx, agent); // [stash][agentPtr]
duk_put_prop_string(ctx, -2, "MeshAgentPtr"); // [stash]
duk_pop(ctx); // ...
ILibDuktape_ModSearch_AddHandler(ctx, "MeshAgent", ILibDuktape_MeshAgent_PUSH);
if (agent->webSocketMaskOverride != 0)
{
duk_peval_string_noresult(ctx, "Object.defineProperty(require('https'), '_webSocketMaskOverride', { value: true });");
}
}
/* ------------------------------
End Mesh Agent Duktape Abstraction
--------------------------------*/
// !!!WARNING!!!: The result of this method is stored in ILibScratchPad2
char* MeshAgent_MakeAbsolutePath(char *basePath, char *localPath)
{
size_t localPathLen = strnlen_s(localPath, sizeof(ILibScratchPad2));
size_t basePathLen = strnlen_s(basePath, sizeof(ILibScratchPad2));
int i, sz;
if (localPath[0] == '.')
{
// Use Same executable Name, but different extension
sz = (int)basePathLen;
if (sz>=4 && ntohl(((unsigned int*)(basePath + sz - 4))[0]) == EXE_IDENTIFIER)
{
// BasePath ends with .exe
memcpy_s(ILibScratchPad2, sizeof(ILibScratchPad2), basePath, sz - 4);
memcpy_s(ILibScratchPad2 + sz - 4, sizeof(ILibScratchPad2) - sz - 4, localPath, localPathLen);
sz = sz - 4 + (int)localPathLen;
}
else
{
// BasePath does not end with .exe
memcpy_s(ILibScratchPad2, sizeof(ILibScratchPad2), basePath, sz);
memcpy_s(ILibScratchPad2 + sz, sizeof(ILibScratchPad2) - sz, localPath, localPathLen);
sz += (int)localPathLen;
}
ILibScratchPad2[sz] = 0;
}
else
{
if ((i = ILibString_LastIndexOf(basePath, (int)basePathLen, "\\", 1)) < 0) { i = ILibString_LastIndexOf(basePath, (int)basePathLen, "/", 1); }
i += 1;
sz = i + (int)localPathLen;
memcpy_s(ILibScratchPad2, sizeof(ILibScratchPad2), basePath, i);
memcpy_s(ILibScratchPad2 + i, sizeof(ILibScratchPad2) - i, localPath, localPathLen);
ILibScratchPad2[sz] = 0;
}
return ILibScratchPad2;
}
#ifndef MICROSTACK_NOTLS
int agent_GenerateCertificates(MeshAgentHostContainer *agent, char* certfile)
{
int len = -1;
char* str;
#ifdef WIN32
// If there is a cert here, it was Generated by OpenSSL, so we'll force the regenerate to use OpenSSL, to honor how the current cert was generated
if (agent->noCertStore == 0) { agent->noCertStore = ILibSimpleDataStore_Get(agent->masterDb, "SelfNodeCert", NULL, 0); }
#endif
// Clear the certs in the database.
ILibSimpleDataStore_Delete(agent->masterDb, "SelfNodeCert");
ILibSimpleDataStore_Delete(agent->masterDb, "SelfNodeTlsCert");
util_freecert(&(agent->selfcert));
util_freecert(&(agent->selftlscert));
if (certfile == NULL)
{
#if defined(WIN32)
char *rootSubject = (agent->capabilities & MeshCommand_AuthInfo_CapabilitiesMask_RECOVERY) == MeshCommand_AuthInfo_CapabilitiesMask_RECOVERY ? "CN=MeshNodeDiagnosticCertificate" : "CN=MeshNodeCertificate";
if (agent->noCertStore == 0 && (agent->certObject = wincrypto_open(TRUE, rootSubject)) != NULL) // Force certificate re-generation
{
int l;
do
{
// Finish off work with our own certificate
l = wincrypto_getcert(&str, agent->certObject);
if (l > 0)
{
util_from_cer(str, l, &(agent->selfcert));
util_keyhash(agent->selfcert, agent->g_selfid);
if (((int*)agent->g_selfid)[0] == 0) { wincrypto_close(agent->certObject); agent->certObject = wincrypto_open(1, rootSubject); }
}
} while (l != 0 && ((int*)agent->g_selfid)[0] == 0); // This removes any chance that the self_id starts with 32 bits of zeros.
if (l > 0)
{
// Generate a new TLS certificate & save it.
l = wincrypto_mkCert(agent->certObject, rootSubject, L"CN=localhost", CERTIFICATE_TLS_SERVER, L"hidden", &str);
util_from_p12(str, l, "hidden", &(agent->selftlscert));
ILibSimpleDataStore_PutEx(agent->masterDb, "SelfNodeTlsCert", 15, str, l);
util_free(str);
return 0;
}
} else {
#endif
// Generate a new self-signed root certificate for this node using OpenSSL
ILibRemoteLogging_printf(ILibChainGetLogger(agent->chain), ILibRemoteLogging_Modules_Agent_GuardPost, ILibRemoteLogging_Flags_VerbosityLevel_1, "...Generating new Node Certificate");
printf("Generating Certificate...\r\n");
do
{
SSL_TRACE1("agent_GenerateCertificates()");
if (util_mkCert(NULL, &(agent->selfcert), 3072, 10000, "MeshNodeCertificate", CERTIFICATE_ROOT, NULL) == 0)
{
SSL_TRACE2("agent_GenerateCertificates()");
return -1;
}
util_keyhash(agent->selfcert, agent->g_selfid);
SSL_TRACE2("agent_GenerateCertificates()");
} while (((int*)agent->g_selfid)[0] == 0); // This removes any chance that the self_id starts with 32 bits of zeros.
ILibRemoteLogging_printf(ILibChainGetLogger(agent->chain), ILibRemoteLogging_Modules_Agent_GuardPost, ILibRemoteLogging_Flags_VerbosityLevel_1, "...g_selfid = %s", ILibRemoteLogging_ConvertToHex(agent->g_selfid, (int)sizeof(agent->g_selfid)));
#if defined(WIN32)
wincrypto_setregistry(L"KeyStore", L"None");
}
#endif
}
else
{
// Load a node certificate from a PEM file
ILibRemoteLogging_printf(ILibChainGetLogger(agent->chain), ILibRemoteLogging_Modules_Agent_GuardPost, ILibRemoteLogging_Flags_VerbosityLevel_1, "...Loading Node Cert from PEM file");
SSL_TRACE1("ILibDuktape_MeshAgent_GenerateCertificate_FromFile()");
if (util_from_pem(certfile, &(agent->selfcert)) == -1)
{
ILibRemoteLogging_printf(ILibChainGetLogger(agent->chain), ILibRemoteLogging_Modules_Agent_GuardPost, ILibRemoteLogging_Flags_VerbosityLevel_1, "......*ERROR*");
SSL_TRACE2("ILibDuktape_MeshAgent_GenerateCertificate_FromFile([ERROR])");
return -1;
}
util_keyhash(agent->selfcert, agent->g_selfid);
if (((int*)agent->g_selfid)[0] == 0)
{
ILibRemoteLogging_printf(ILibChainGetLogger(agent->chain), ILibRemoteLogging_Modules_Agent_GuardPost, ILibRemoteLogging_Flags_VerbosityLevel_1, "......g_selfid = *ERROR*");
SSL_TRACE2("ILibDuktape_MeshAgent_GenerateCertificate_FromFile([ERROR])");
return -1; // This removes any chance that the self_id starts with 32 bits of zeros.
}
SSL_TRACE2("ILibDuktape_MeshAgent_GenerateCertificate_FromFile()");
ILibRemoteLogging_printf(ILibChainGetLogger(agent->chain), ILibRemoteLogging_Modules_Agent_GuardPost, ILibRemoteLogging_Flags_VerbosityLevel_1, "...g_selfid = %s", ILibRemoteLogging_ConvertToHex(agent->g_selfid, (int)sizeof(agent->g_selfid)));
}
SSL_TRACE1("ILibDuktape_MeshAgent_GenerateCertificate(SelfNodeCert)");
len = util_to_p12(agent->selfcert, "hidden", &str);
ILibSimpleDataStore_PutEx(agent->masterDb, "SelfNodeCert", 12, str, len);
util_free(str);
SSL_TRACE2("ILibDuktape_MeshAgent_GenerateCertificate(SelfNodeCert)");
/*
// If the root certificate is generated in the TPM, generate a new TLS certificate
SSL_TRACE1("ILibDuktape_MeshAgent_GenerateCertificate(SelfNodeTlsCert)");
ILibRemoteLogging_printf(ILibChainGetLogger(agent->chain), ILibRemoteLogging_Modules_Agent_GuardPost, ILibRemoteLogging_Flags_VerbosityLevel_1, "...Generating TLS Certificate");
len = util_mkCert(&(agent->selfcert), &(agent->selftlscert), 3072, 10000, "localhost", CERTIFICATE_TLS_SERVER, NULL);
len = util_to_p12(agent->selftlscert, "hidden", &str);
ILibSimpleDataStore_PutEx(agent->masterDb, "SelfNodeTlsCert", 15, str, len);
util_free(str);
SSL_TRACE2("ILibDuktape_MeshAgent_GenerateCertificate(SelfNodeTlsCert)");
*/
// If we don't use TPM, we can skip generating the TLS cert.
agent->selftlscert.flags = 0;
agent->selftlscert.x509 = NULL;
agent->selftlscert.pkey = NULL;
MSG("Certificates ready.\r\n");
ILibRemoteLogging_printf(ILibChainGetLogger(agent->chain), ILibRemoteLogging_Modules_Agent_GuardPost, ILibRemoteLogging_Flags_VerbosityLevel_1, "...READY");
return 0;
}
int agent_LoadCertificates(MeshAgentHostContainer *agent)
{
int len;
SSL_TRACE1("agent_LoadCertificates()");
//printf("Loading Certificates...\r\n");
// First, look to see if we have a certificate in the .db file, if we do, use that.
len = ILibSimpleDataStore_Get(agent->masterDb, "SelfNodeCert", ILibScratchPad2, sizeof(ILibScratchPad2));
if (len == 0 || util_from_p12(ILibScratchPad2, len, "hidden", &(agent->selfcert)) == 0)
{
#if defined(WIN32)
char *rootSubject = (agent->capabilities & MeshCommand_AuthInfo_CapabilitiesMask_RECOVERY) == MeshCommand_AuthInfo_CapabilitiesMask_RECOVERY ? "CN=MeshNodeDiagnosticCertificate" : "CN=MeshNodeCertificate";
// No cert in this .db file. Try to load or generate a root certificate from a Windows crypto provider. This can be TPM backed which is great.
// However, if we don't have the second cert created, we need to regen the root...
if (agent->noCertStore == 0 && (agent->certObject = wincrypto_open(FALSE, rootSubject)) != NULL && ILibSimpleDataStore_Get(agent->masterDb, "SelfNodeTlsCert", NULL, 0) != 0)
{
char* str = NULL;
int l;
do {
// Finish off work with our own certificate
l = wincrypto_getcert(&str, agent->certObject);
if (l > 0)
{
util_from_cer(str, l, &(agent->selfcert));
util_keyhash(agent->selfcert, agent->g_selfid);
if (((int*)agent->g_selfid)[0] == 0) { wincrypto_close(agent->certObject); agent->certObject = wincrypto_open(TRUE, rootSubject); } // Force generation of a new certificate.
}
} while (l != 0 && ((int*)agent->g_selfid)[0] == 0); // This removes any chance that the self_id starts with 32 bits of zeros.
if (l > 0)
{
// Load the TLS certificate from the database. If not present, generate one.
len = ILibSimpleDataStore_Get(agent->masterDb, "SelfNodeTlsCert", ILibScratchPad2, sizeof(ILibScratchPad2));
if ((len != 0) && (util_from_p12(ILibScratchPad2, len, "hidden", &(agent->selftlscert)) == 0)) { len = 0; } // Unable to decode this certificate
if (agent_VerifyMeshCertificates(agent) != 0) { len = 0; } // Check that the load TLS cert is signed by our root.
if (len == 0) {
// Generate a new TLS certificate & save it.
util_freecert(&(agent->selftlscert));
l = wincrypto_mkCert(agent->certObject, rootSubject, L"CN=localhost", CERTIFICATE_TLS_SERVER, L"hidden", &str);
if (l > 0) {
util_from_p12(str, l, "hidden", &(agent->selftlscert));
ILibSimpleDataStore_PutEx(agent->masterDb, "SelfNodeTlsCert", 15, str, l);
}
util_free(str);
if (l <= 0) { return 1; } // Problem generating the TLS cert, reset everything.
}
return 0; // All good. We loaded or generated a root agent cert and TLS cert.
}
}
#endif
// No certificate in the database. Return 1 here so we can generate one.
ILibRemoteLogging_printf(ILibChainGetLogger(agent->chain), ILibRemoteLogging_Modules_Agent_GuardPost, ILibRemoteLogging_Flags_VerbosityLevel_1, "...Failed to load Node Certificate from Database");
SSL_TRACE2("agent_LoadCertificates([ERROR: SelfNodeCert])");
return 1;
}
// Try to load the TLS certificate
len = ILibSimpleDataStore_Get(agent->masterDb, "SelfNodeTlsCert", ILibScratchPad2, sizeof(ILibScratchPad2));
if (len != 0)
{
// If the TLS certificate is in the database, load it. If not, it's ok to skip this.
if (util_from_p12(ILibScratchPad2, len, "hidden", &(agent->selftlscert)) == 0) {
ILibRemoteLogging_printf(ILibChainGetLogger(agent->chain), ILibRemoteLogging_Modules_Agent_GuardPost, ILibRemoteLogging_Flags_VerbosityLevel_1, "...Failed to load TLS Certificate from Database");
util_freecert(&(agent->selfcert));
SSL_TRACE2("agent_LoadCertificates([ERROR: SelfNodeTlsCert])");
return 1;
}
}
// Compute this agent's nodeid.
util_keyhash(agent->selfcert, agent->g_selfid);
SSL_TRACE2("agent_LoadCertificates()");
return 0;
}
int agent_VerifyMeshCertificates(MeshAgentHostContainer *agent)
{
X509_STORE *store;
X509_STORE_CTX *ctx;
int i = 0;
SSL_TRACE1("agent_VerifyMeshCertificates()");
if (agent->selftlscert.x509 == NULL) { return 0; } // There is no TLS certificate, no verification needed.
// Check that the TLS certificate and TLS client certificate are correctly signed by our Mesh Agent certificate
ILibRemoteLogging_printf(ILibChainGetLogger(agent->chain), ILibRemoteLogging_Modules_Agent_GuardPost, ILibRemoteLogging_Flags_VerbosityLevel_1, "...Verifying TLS Certificates are signed by Mesh Agent Certificate");
store = X509_STORE_new();
X509_STORE_add_cert(store, agent->selfcert.x509);
ctx = X509_STORE_CTX_new();
X509_STORE_CTX_init(ctx, store, agent->selftlscert.x509, NULL);
i = X509_verify_cert(ctx);
X509_STORE_CTX_free(ctx);
X509_STORE_free(store);
// If the certificate chain is not correct, re-create all the certificates.
if (i != 1)
{
ILibRemoteLogging_printf(ILibChainGetLogger(agent->chain), ILibRemoteLogging_Modules_Agent_GuardPost, ILibRemoteLogging_Flags_VerbosityLevel_1, "......INVALID TLS Server Certificate");
}
SSL_TRACE2("agent_VerifyMeshCertificates()");
if (i != 1) { return 1; } // Bad certificates
return 0;
}
#endif
void WritePipeResponse(AGENT_RECORD_TYPE recordType, JS_ENGINE_CONTEXT engineContext, char *payload, int payloadLength)
{
#ifdef WIN32
int tmpLen;
#endif
AGENT_RECORD_HEADER *header = (AGENT_RECORD_HEADER*)ILibScratchPad2;
header->RecordType = recordType;
header->RecordLength = sizeof(AGENT_RECORD_HEADER) + payloadLength;
memcpy_s(header->Context, sizeof(JS_ENGINE_CONTEXT), engineContext, sizeof(JS_ENGINE_CONTEXT));
if (payloadLength > 0)
{
memcpy_s(header->Payload, sizeof(ILibScratchPad2) - sizeof(AGENT_RECORD_HEADER), payload, payloadLength);
}
#ifdef WIN32
WriteFile(GetStdHandle(STD_ERROR_HANDLE), header, header->RecordLength, &tmpLen, NULL);
#else
ignore_result(write(STDERR_FILENO, header, header->RecordLength));
#endif
}
duk_context* ScriptEngine_Stop(MeshAgentHostContainer *agent, char *contextGUID)
{
duk_context *oldCtx = agent->meshCoreCtx;
agent->meshCoreCtx = NULL;
SCRIPT_ENGINE_SETTINGS *settings = ILibDuktape_ScriptContainer_GetSettings(oldCtx);
duk_context *newCtx = ILibDuktape_ScriptContainer_InitializeJavaScriptEngineEx2(settings);
ILibDuktape_MeshAgent_Init(newCtx, agent->chain, agent);
ILibDuktape_SetNativeUncaughtExceptionHandler(newCtx, settings->nExeptionHandler, settings->nExceptionUserObject);
if (g_displayFinalizerMessages) { printf("\n\n==> Stopping JavaScript Engine\n"); }
duk_destroy_heap(oldCtx);
agent->meshCoreCtx = newCtx;
if (agent->proxyServer != NULL)
{
memcpy_s(&(ILibDuktape_GetNewGlobalTunnel(agent->meshCoreCtx)->proxyServer), sizeof(struct sockaddr_in6), agent->proxyServer, sizeof(struct sockaddr_in6));
}
return(newCtx);
}
char* ScriptEngine_Restart(MeshAgentHostContainer *agent, char *contextGUID, char *buffer, int bufferLen)
{
duk_context *ctx = ScriptEngine_Stop(agent, contextGUID);
if (ctx != NULL)
{
if (ILibDuktape_ScriptContainer_CompileJavaScriptEx(ctx, buffer, bufferLen, "CoreModule.js", 13) != 0 || ILibDuktape_ScriptContainer_ExecuteByteCode(ctx) != 0)
{
sprintf_s(ILibScratchPad, sizeof(ILibScratchPad), "%s", (char*)duk_safe_to_string(ctx, -1));
duk_pop(ctx);
return(ILibScratchPad);
}
return(NULL);
}
else
{
return "Restart Failed, because Script Engine Stop failed";
}
}
void MeshAgent_Slave_HeapWasDestroyed(duk_context *ctx, void *user)
{
MeshAgentHostContainer *agent = (MeshAgentHostContainer*)user;
agent->exitCode = ILibDuktape_Process_GetExitCode(ctx);
ILibRemoteLogging_printf(ILibChainGetLogger(agent->chain), ILibRemoteLogging_Modules_Microstack_Generic, ILibRemoteLogging_Flags_VerbosityLevel_1, "MeshAgent_Slave: Engine has exited");
ILibStopChain(agent->chain);
}
// Called when we can now send more data to MeshCentral
void MeshServer_OnSendOK(ILibWebClient_StateObject sender, void *user1, void *user2)
{
// TODO: Inform JavaScript core module that we are in underflow situation
}
int GenerateSHA384FileHash(char *filePath, char *fileHash)
{
FILE *tmpFile = NULL;
unsigned int endIndex = 0;
unsigned int bytesLeft = 0;
size_t bytesRead;
unsigned int checkSumIndex = 0;
unsigned int tableIndex = 0;
#ifdef WIN32
int retVal = 1;
fopen_s(&tmpFile, filePath, "rb");
#else
tmpFile = fopen(filePath, "rb");
#endif
if (tmpFile == NULL) { return(1); }
#ifdef WIN32
// We need to check if this is a signed binary
// Read the PE Headers, to determine where to look for the Embedded JS
char *optHeader = NULL;
unsigned int NTHeaderIndex = 0;
fseek(tmpFile, 0, SEEK_SET);
ignore_result(fread(ILibScratchPad, 1, 2, tmpFile));
if (ntohs(((unsigned int*)ILibScratchPad)[0]) == 19802) // 5A4D
{
fseek(tmpFile, 60, SEEK_SET);
ignore_result(fread((void*)&NTHeaderIndex, 1, 4, tmpFile));
fseek(tmpFile, NTHeaderIndex, SEEK_SET); // NT HEADER
checkSumIndex = NTHeaderIndex + 24 + 64;
ignore_result(fread(ILibScratchPad, 1, 24, tmpFile));
if (((unsigned int*)ILibScratchPad)[0] == 17744)
{
// PE Image
optHeader = ILibMemory_AllocateA(((unsigned short*)ILibScratchPad)[10]);
ignore_result(fread(optHeader, 1, ILibMemory_AllocateA_Size(optHeader), tmpFile));
switch (((unsigned short*)optHeader)[0])
{
case 0x10B:
if (((unsigned int*)(optHeader + 128))[0] != 0)
{
endIndex = ((unsigned int*)(optHeader + 128))[0];
}
tableIndex = NTHeaderIndex + 24 + 128;
retVal = 0;
break;
case 0x20B:
if (((unsigned int*)(optHeader + 144))[0] != 0)
{
endIndex = ((unsigned int*)(optHeader + 144))[0];
}
tableIndex = NTHeaderIndex + 24 + 144;
retVal = 0;
break;
default:
break;
}
}
}
if (retVal != 0)
{
fclose(tmpFile);
return(1);
}
#endif
if (endIndex == 0)
{
// We just need to check for Embedded MSH file
int mshLen = 0;
fseek(tmpFile, -16, SEEK_END);
ignore_result(fread(ILibScratchPad, 1, 16, tmpFile));
if (memcmp(ILibScratchPad, exeMeshPolicyGuid, 16) == 0)
{
fseek(tmpFile, -20, SEEK_CUR);
ignore_result(fread((void*)&mshLen, 1, 4, tmpFile));
mshLen = ntohl(mshLen);
endIndex = (unsigned int)ftell(tmpFile) - 4 - mshLen;
}
else
{
endIndex = (unsigned int)ftell(tmpFile);
}
}
SHA512_CTX ctx;
SHA384_Init(&ctx);
bytesLeft = endIndex;
fseek(tmpFile, 0, SEEK_SET);
if (checkSumIndex != 0)
{
bytesRead = fread(ILibScratchPad, 1, checkSumIndex + 4, tmpFile);
((unsigned int*)(ILibScratchPad + checkSumIndex))[0] = 0;
SHA384_Update(&ctx, ILibScratchPad, bytesRead);
if (endIndex > 0) { bytesLeft -= (unsigned int)bytesRead; }
bytesRead = fread(ILibScratchPad, 1, tableIndex + 8 - (checkSumIndex + 4), tmpFile);
((unsigned int*)(ILibScratchPad + bytesRead - 8))[0] = 0;
((unsigned int*)(ILibScratchPad + bytesRead - 8))[1] = 0;
SHA384_Update(&ctx, ILibScratchPad, bytesRead);
if (endIndex > 0) { bytesLeft -= (unsigned int)bytesRead; }
}
while ((bytesRead = fread(ILibScratchPad, 1, endIndex == 0 ? sizeof(ILibScratchPad) : (bytesLeft > sizeof(ILibScratchPad) ? sizeof(ILibScratchPad) : bytesLeft), tmpFile)) > 0)
{
SHA384_Update(&ctx, ILibScratchPad, bytesRead);
if (endIndex > 0)
{
bytesLeft -= (unsigned int)bytesRead;
if (bytesLeft == 0) { break; }
}
}
SHA384_Final((unsigned char*)fileHash, &ctx);
fclose(tmpFile);
return(0);
}
// Called when the connection of the mesh server is fully authenticated
void MeshServer_ServerAuthenticated(ILibWebClient_StateObject WebStateObject, MeshAgentHostContainer *agent) {
int len = 0;
// Send the mesh agent tag to the server
// We send the tag information independently of the meshcore because we could use this to select what meshcore to use on the server.
((unsigned short*)ILibScratchPad2)[0] = htons(MeshCommand_AgentTag); // MeshCommand_AgentTag (15), agent tag information
len = ILibSimpleDataStore_GetEx(agent->masterDb, "Tag", 3, ILibScratchPad2 + 2, sizeof(ILibScratchPad2) - 2);
ILibWebClient_WebSocket_Send(WebStateObject, ILibWebClient_WebSocket_DataType_BINARY, ILibScratchPad2, 2 + len, ILibAsyncSocket_MemoryOwnership_USER, ILibWebClient_WebSocket_FragmentFlag_Complete);
// Inform JavaScript core module of the connection
// TODO: Verify with Bryan that only the core module will get this. No other modules should.
if (agent->serverAuthState == 3)
{
ILibDuktape_MeshAgent_PUSH(agent->meshCoreCtx, agent->chain); // [agent]
duk_get_prop_string(agent->meshCoreCtx, -1, "emit"); // [agent][emit]
duk_swap_top(agent->meshCoreCtx, -2); // [emit][this]
duk_push_string(agent->meshCoreCtx, "Connected"); // [emit][this][Connected]
duk_push_int(agent->meshCoreCtx, 1); // [emit][this][Connected][1]
if (duk_pcall_method(agent->meshCoreCtx, 2) != 0) { ILibDuktape_Process_UncaughtException(agent->meshCoreCtx); }
duk_pop(agent->meshCoreCtx); // ...
if (agent->logUpdate != 0)
{
sprintf_s(ILibScratchPad, sizeof(ILibScratchPad), "Connection Established [%p]...", WebStateObject);
ILIBLOGMESSSAGE(ILibScratchPad);
}
}
}
void MeshServer_SendAgentInfo(MeshAgentHostContainer* agent, ILibWebClient_StateObject WebStateObject)
{
int hostnamelen = (int)strnlen_s(agent->hostname, sizeof(agent->hostname));
// Send to the server information about this agent
MeshCommand_BinaryPacket_AuthInfo *info = (MeshCommand_BinaryPacket_AuthInfo*)ILibScratchPad2;
memset(info, 0, sizeof(MeshCommand_BinaryPacket_AuthInfo)); // Required because if hash are SHA384, they will not fully fill the struct.
info->command = htons(MeshCommand_AuthInfo);
info->infoVersion = htonl(1);
info->agentId = htonl(MESH_AGENTID);
info->agentVersion = htonl(agent->version);
info->platformType = htonl(((agent->batteryState != MeshAgentHost_BatteryInfo_NONE) && (agent->batteryState != MeshAgentHost_BatteryInfo_UNKNOWN)) ? MeshCommand_AuthInfo_PlatformType_LAPTOP : MeshCommand_AuthInfo_PlatformType_DESKTOP);
memcpy_s(info->MeshID, sizeof(info->MeshID), agent->meshId, sizeof(agent->meshId));
info->capabilities = htonl(agent->capabilities);
if ((info->hostnameLen = htons(ILibSimpleDataStore_Get(agent->masterDb, "agentName", info->hostname, sizeof(ILibScratchPad2) - sizeof(info)))) == 0)
{
info->hostnameLen = htons(hostnamelen);
memcpy_s(info->hostname, sizeof(ILibScratchPad2) - sizeof(MeshCommand_BinaryPacket_AuthInfo), agent->hostname, hostnamelen);
}
else
{
hostnamelen = ntohs(info->hostnameLen) - 1;
}
// Send mesh agent information to the server
ILibWebClient_WebSocket_Send(WebStateObject, ILibWebClient_WebSocket_DataType_BINARY, (char*)info, sizeof(MeshCommand_BinaryPacket_AuthInfo) + hostnamelen, ILibAsyncSocket_MemoryOwnership_USER, ILibWebClient_WebSocket_FragmentFlag_Complete);
agent->retryTime = 0;
if ((agent->capabilities & MeshCommand_AuthInfo_CapabilitiesMask_RECOVERY) == MeshCommand_AuthInfo_CapabilitiesMask_RECOVERY)
{
printf("[Recovery Agent] Connected.\n");
}
else
{
printf("Connected.\n");
}
if (agent->serverAuthState == 3) { MeshServer_ServerAuthenticated(WebStateObject, agent); }
}
// Process MeshCentral server commands.
void MeshServer_ProcessCommand(ILibWebClient_StateObject WebStateObject, MeshAgentHostContainer *agent, char *cmd, int cmdLen)
{
unsigned short command = ntohs(((unsigned short*)cmd)[0]);
unsigned short requestid;
if (agent->controlChannelDebug != 0)
{
printf("ProcessCommand(%u)...\n", command);
ILIBLOGMESSAGEX("ProcessCommand(%u)...\n", command);
}
#ifndef MICROSTACK_NOTLS
// If we are not authenticated with the mesh server, we only support auth commands.
if (agent->serverAuthState != 3)
{
X509* peer = ILibWebClient_SslGetCert(WebStateObject);
switch (command)
{
case MeshCommand_AuthRequest: // This is basic authentication information from the server, we need to sign this and return the signature.
if (cmdLen == sizeof(MeshCommand_BinaryPacket_AuthRequest))
{
if (agent->controlChannelDebug != 0) { ILIBLOGMESSAGEX("Processing Authentication Request...\n"); }
MeshCommand_BinaryPacket_AuthRequest *AuthRequest = (MeshCommand_BinaryPacket_AuthRequest*)cmd;
int signLen;
SHA512_CTX c;
EVP_PKEY *evp_prikey;
RSA *rsa_prikey;
// Hash the server's web certificate and check if it matches the one in the auth request
util_certhash2(peer, ILibScratchPad2); // Hash the server certificate
if (memcmp(ILibScratchPad2, AuthRequest->serverHash, sizeof(AuthRequest->serverHash)) != 0)
{
util_keyhash2(peer, ILibScratchPad2); // Hash the server certificate public key (this is the old way)
if (memcmp(ILibScratchPad2, AuthRequest->serverHash, sizeof(AuthRequest->serverHash)) != 0)
{
printf("Bad server certificate hash\r\n"); // TODO: Disconnect
if (agent->controlChannelDebug != 0)
{
ILIBLOGMESSAGEX("Bad server certificate hash\n");
}
break;
}
}
memcpy_s(agent->serverNonce, sizeof(agent->serverNonce), AuthRequest->serverNonce, sizeof(AuthRequest->serverNonce));
// Place our certificate in the response
MeshCommand_BinaryPacket_AuthVerify_Header *rav = (MeshCommand_BinaryPacket_AuthVerify_Header*)ILibScratchPad2;
rav->command = htons(MeshCommand_AuthVerify); // MeshCommand_AuthVerify (2), agent certificate in ASN1 format
char *certDer = (char*)rav->data;
short certLen = i2d_X509(agent->selfcert.x509, (unsigned char **)&certDer); // Place the agent root certificate in DER form
rav->certLen = htons(certLen);
#ifdef WIN32
if (agent->selfcert.pkey != NULL) {
#endif
// Use our agent root private key to sign HASH(ServerWebHash + ServerNonce + AgentNonce)
SHA384_Init(&c);
SHA384_Update(&c, AuthRequest->serverHash, UTIL_SHA384_HASHSIZE); // Server web hash
SHA384_Update(&c, agent->serverNonce, UTIL_SHA384_HASHSIZE); // Server nonce
SHA384_Update(&c, agent->agentNonce, UTIL_SHA384_HASHSIZE); // Agent nonce
SHA384_Final((unsigned char*)ILibScratchPad, &c);
// Create a RSA signature using OpenSSL & send it
evp_prikey = agent->selfcert.pkey;
rsa_prikey = EVP_PKEY_get1_RSA(evp_prikey);
signLen = sizeof(ILibScratchPad2) - sizeof(MeshCommand_BinaryPacket_AuthVerify_Header) - certLen;
if (RSA_sign(NID_sha384, (unsigned char*)ILibScratchPad, UTIL_SHA384_HASHSIZE, (unsigned char*)(rav->data + certLen), (unsigned int*)&signLen, rsa_prikey) == 1)
{
// Signature succesful, send the result to the server
ILibWebClient_WebSocket_Send(WebStateObject, ILibWebClient_WebSocket_DataType_BINARY, (char*)rav, sizeof(MeshCommand_BinaryPacket_AuthVerify_Header) + certLen + signLen, ILibAsyncSocket_MemoryOwnership_USER, ILibWebClient_WebSocket_FragmentFlag_Complete);
}
RSA_free(rsa_prikey);
#ifdef WIN32
} else {
// Use our agent root private key to sign: ServerWebHash + ServerNonce + AgentNonce
memcpy_s(ILibScratchPad, sizeof(ILibScratchPad), AuthRequest->serverHash, UTIL_SHA384_HASHSIZE);
memcpy_s(ILibScratchPad + UTIL_SHA384_HASHSIZE, sizeof(ILibScratchPad) - UTIL_SHA384_HASHSIZE, agent->serverNonce, UTIL_SHA384_HASHSIZE);
memcpy_s(ILibScratchPad + UTIL_SHA384_HASHSIZE + UTIL_SHA384_HASHSIZE, sizeof(ILibScratchPad) - UTIL_SHA384_HASHSIZE - UTIL_SHA384_HASHSIZE, agent->agentNonce, UTIL_SHA384_HASHSIZE);
// Create a PKCS7 signature using Windows crypto & send it
char* signature = NULL;
signLen = wincrypto_sign(agent->certObject, (unsigned char*)ILibScratchPad, sizeof(AuthRequest->serverHash) + UTIL_SHA384_HASHSIZE + UTIL_SHA384_HASHSIZE, &signature);
if (signLen > 0)
{
// Signature succesful, send the result to the server
memcpy_s((unsigned char*)(rav->data + certLen), sizeof(ILibScratchPad2) - sizeof(MeshCommand_BinaryPacket_AuthVerify_Header) - certLen, signature, signLen);
ILibWebClient_WebSocket_Send(WebStateObject, ILibWebClient_WebSocket_DataType_BINARY, (char*)rav, sizeof(MeshCommand_BinaryPacket_AuthVerify_Header) + certLen + signLen, ILibAsyncSocket_MemoryOwnership_USER, ILibWebClient_WebSocket_FragmentFlag_Complete);
free(signature);
}
}
#endif
}
break;
case MeshCommand_AuthVerify: // This is the signature from the server. We need to check everything is ok.
if (cmdLen > 8)
{
if (agent->controlChannelDebug != 0) { ILIBLOGMESSAGEX("Processing Authentication Verification...\n"); }
MeshCommand_BinaryPacket_AuthVerify_Header *avh = (MeshCommand_BinaryPacket_AuthVerify_Header*)cmd;
#ifdef WIN32
MeshCommand_BinaryPacket_AuthVerify *AuthVerify = (MeshCommand_BinaryPacket_AuthVerify*)_alloca(sizeof(MeshCommand_BinaryPacket_AuthVerify));
#else
MeshCommand_BinaryPacket_AuthVerify *AuthVerify = (MeshCommand_BinaryPacket_AuthVerify*)alloca(sizeof(MeshCommand_BinaryPacket_AuthVerify));
#endif
AuthVerify->cert = avh->data;
AuthVerify->certLen = ntohs(avh->certLen);
AuthVerify->signature = avh->data + AuthVerify->certLen;
AuthVerify->signatureLen = (unsigned short)(cmdLen - (int)(sizeof(MeshCommand_BinaryPacket_AuthVerify_Header) + AuthVerify->certLen));
if (cmdLen > (int)(sizeof(MeshCommand_BinaryPacket_AuthVerify_Header) + AuthVerify->certLen))
{
int hashlen = UTIL_SHA384_HASHSIZE;
SHA512_CTX c;
X509* serverCert = NULL;
EVP_PKEY *evp_pubkey;
RSA *rsa_pubkey;
// Get the server certificate
if (!d2i_X509(&serverCert, (const unsigned char**)&AuthVerify->cert, AuthVerify->certLen)) { printf("Invalid server certificate\r\n"); break; } // TODO: Disconnect
// Check if this certificate public key hash matches what we want
X509_pubkey_digest(serverCert, EVP_sha384(), (unsigned char*)ILibScratchPad, (unsigned int*)&hashlen); // OpenSSL 1.1, SHA384
if (memcmp(ILibScratchPad, agent->serverHash, UTIL_SHA384_HASHSIZE) != 0) {
X509_pubkey_digest(serverCert, EVP_sha256(), (unsigned char*)ILibScratchPad, (unsigned int*)&hashlen); // OpenSSL 1.1, SHA256 (For older .mshx policy file)
if (memcmp(ILibScratchPad, agent->serverHash, UTIL_SHA256_HASHSIZE) != 0)
{
printf("Server certificate mismatch\r\n"); break; // TODO: Disconnect
if (agent->controlChannelDebug != 0) { ILIBLOGMESSAGEX("Server certificate mismatch\n"); }
}
}
// Compute the authentication hash
SHA384_Init(&c);
util_certhash2(peer, ILibScratchPad2);
SHA384_Update(&c, ILibScratchPad2, UTIL_SHA384_HASHSIZE);
SHA384_Update(&c, agent->agentNonce, UTIL_SHA384_HASHSIZE);
SHA384_Update(&c, agent->serverNonce, UTIL_SHA384_HASHSIZE);
SHA384_Final((unsigned char*)ILibScratchPad, &c);
// Verify the hash signature using the server certificate
evp_pubkey = X509_get_pubkey(serverCert);
rsa_pubkey = EVP_PKEY_get1_RSA(evp_pubkey);
if (RSA_verify(NID_sha384, (unsigned char*)ILibScratchPad, UTIL_SHA384_HASHSIZE, (unsigned char*)AuthVerify->signature, AuthVerify->signatureLen, rsa_pubkey) == 1)
{
// Server signature verified, we are good to go.
agent->serverAuthState += 1;
// Store the server's TLS cert hash so in the future, we can skip server auth.
ILibSimpleDataStore_PutEx(agent->masterDb, "ServerTlsCertHash", 17, ILibScratchPad2, UTIL_SHA384_HASHSIZE);
// Send our agent information to the server
MeshServer_SendAgentInfo(agent, WebStateObject);
} else {
printf("Invalid server signature\r\n");
if (agent->controlChannelDebug != 0) { ILIBLOGMESSAGEX("Invalid Server Signature\n"); }
// TODO: Disconnect
}
RSA_free(rsa_pubkey);
EVP_PKEY_free(evp_pubkey);
X509_free(serverCert);
}
break;
case MeshCommand_AuthConfirm: // Server indicates that we are authenticated, we can now send data.
{
if (agent->controlChannelDebug != 0) { printf("Authentication Complete...\n"); ILIBLOGMESSAGEX("Authentication Complete...\n"); }
// We have to wait for the server to indicate that it authenticated the agent (us) before sending any data to the server.
// Node authentication requires the server make database calls, so we need to delay.
agent->serverAuthState += 2;
if (agent->serverAuthState == 3) { MeshServer_ServerAuthenticated(WebStateObject, agent); }
}
break;
}
}
if (peer != NULL) { X509_free(peer); peer = NULL; }
return;
}
#endif
// If we get a authentication command after authentication is completed, ignore it. Commands 0 to 9 are reserved for authentication.
if (command < 10) return;
// If the command is JSON or binary over 1000, send it directly to the JavaScript code module
// TODO: Verify with Bryan that only the core module will get this. No other modules should.
if (cmd[0] == '{' || command >= 1000)
{
int popCount = 0;
// if (cmd[0] == '{') { cmd[cmdLen] = 0; printf("%s\r\n", cmd); } // DEBUG: Print JSON command
ILibDuktape_MeshAgent_PUSH(agent->meshCoreCtx, agent->chain); // [agent]
duk_get_prop_string(agent->meshCoreCtx, -1, "emit"); // [agent][emit]
duk_swap_top(agent->meshCoreCtx, -2); // [emit][this]
duk_push_string(agent->meshCoreCtx, "Command"); // [emit][this][Command]
if (cmd[0] == '{')
{
// JSON
duk_push_global_object(agent->meshCoreCtx); // [emit][this][Command][g]
duk_get_prop_string(agent->meshCoreCtx, -1, "JSON"); // [emit][this][Command][g][JSON]
duk_get_prop_string(agent->meshCoreCtx, -1, "parse"); // [emit][this][Command][g][JSON][func]
duk_swap_top(agent->meshCoreCtx, -3); // [emit][this][Command][func][JSON][g]
duk_pop_2(agent->meshCoreCtx); // [emit][this][Command][func]
duk_push_lstring(agent->meshCoreCtx, cmd, cmdLen); // [emit][this][Command][func][str]
if (duk_pcall(agent->meshCoreCtx, 1) != 0) // [emit][this][Command][JSON]
{
duk_pop(agent->meshCoreCtx); // [emit][this][Command]
duk_push_lstring(agent->meshCoreCtx, cmd, cmdLen); // [emit][this][Command][str]
}
popCount = 1;
}
else
{
// BINARY
duk_push_external_buffer(agent->meshCoreCtx); // [emit][this][Command][extBuffer]
duk_insert(agent->meshCoreCtx, -4); // [extBuffer][emit][this][Command]
duk_config_buffer(agent->meshCoreCtx, -4, cmd, cmdLen);
duk_push_buffer_object(agent->meshCoreCtx, -4, 0, cmdLen, DUK_BUFOBJ_NODEJS_BUFFER);// [extBuffer][emit][this][Command][buffer]
popCount = 2;
}
if (duk_pcall_method(agent->meshCoreCtx, 2) != 0) { ILibDuktape_Process_UncaughtException(agent->meshCoreCtx); }
duk_pop_n(agent->meshCoreCtx, popCount); // ...
return;
}
// All these commands must have both a commandid and a requestid
if (cmdLen < 4) return;
requestid = ntohs(((unsigned short*)cmd)[1]);
if (agent->controlChannelDebug != 0)
{
printf("BinaryCommand(%u, %u)...\n", command, requestid);
ILIBLOGMESSAGEX("BinaryCommand(%u, %u)...\n", command, requestid);
}
// Process Core Module Commands here, but only if we aren't running a local script
switch (command)
{
case MeshCommand_CoreModule: // New core modules to be used instead of the old one, if empty, remove the core module
{
char *coreException = NULL;
MeshCommand_BinaryPacket_CoreModule *cm = (MeshCommand_BinaryPacket_CoreModule*)cmd;
// If the agent is running with a local core, ignore this command
if (agent->localScript != 0) break;
if (cmdLen > sizeof(MeshCommand_BinaryPacket_CoreModule)) // Setup a new mesh core.
{
char *hashref = ILibSimpleDataStore_GetHash(agent->masterDb, "CoreModule"); // Get the reference to the SHA384 hash for the currently running code
if (hashref == NULL || memcmp(hashref, cm->coreModuleHash, sizeof(cm->coreModuleHash)) != 0)
{
agent->coreTimeout = NULL; // Setting this to null becuase we're going to stop the core. If we stop the core, this timeout will cleanup by itself.
// If server sends us the same core, just do nothing.
// Server sent us a new core, start by storing it in the data store
ILibSimpleDataStore_PutEx(agent->masterDb, "CoreModule", 10, cm->coreModule, cmdLen - sizeof(MeshCommand_BinaryPacket_CoreModule)); // Store the JavaScript in the data store
hashref = ILibSimpleDataStore_GetHash(agent->masterDb, "CoreModule"); // Get the reference to the SHA384 hash
if (memcmp(hashref, cm->coreModuleHash, sizeof(cm->coreModuleHash)) != 0)
{ // Check the hash for sanity
// Something went wrong, clear the data store
ILibSimpleDataStore_Delete(agent->masterDb, "CoreModule");
// Stop the currently running core if present
ILibRemoteLogging_printf(ILibChainGetLogger(agent->chain), ILibRemoteLogging_Modules_Microstack_Generic | ILibRemoteLogging_Modules_ConsolePrint,
ILibRemoteLogging_Flags_VerbosityLevel_1, "MeshCore: Stop");
ScriptEngine_Stop(agent, MeshAgent_JavaCore_ContextGuid);
// Tell the server we are no longer running a core module
MeshCommand_BinaryPacket_CoreModule *rcm = (MeshCommand_BinaryPacket_CoreModule*)ILibScratchPad2;
rcm->command = htons(MeshCommand_CoreModuleHash); // MeshCommand_CoreModuleHash (11), SHA384 hash of the code module
rcm->request = htons(requestid); // Request id
ILibWebClient_WebSocket_Send(WebStateObject, ILibWebClient_WebSocket_DataType_BINARY, (char*)rcm, 4, ILibAsyncSocket_MemoryOwnership_USER, ILibWebClient_WebSocket_FragmentFlag_Complete);
break;
}
// Stop the current JavaScript core if present and launch the new one.
// JavaScript located at (cmd + 36) of length (cmdLen - 36)
//printf("CORE: Restart\r\n");
ILibRemoteLogging_printf(ILibChainGetLogger(agent->chain), ILibRemoteLogging_Modules_Microstack_Generic | ILibRemoteLogging_Modules_ConsolePrint,
ILibRemoteLogging_Flags_VerbosityLevel_1, "MeshCore: Restart");
if ((coreException = ScriptEngine_Restart(agent, MeshAgent_JavaCore_ContextGuid, cm->coreModule + 4, cmdLen - sizeof(MeshCommand_BinaryPacket_CoreModule) - 4)) != NULL)
{
ILibRemoteLogging_printf(ILibChainGetLogger(agent->chain), ILibRemoteLogging_Modules_Microstack_Generic | ILibRemoteLogging_Modules_ConsolePrint,
ILibRemoteLogging_Flags_VerbosityLevel_1, "MeshCore: Error: %s", coreException);
// TODO: Ylian: New Java Core threw an exception... Exception String is stored in 'coreException'
}
// Since we did a big write to the data store, good time to compact the store
ILibSimpleDataStore_Compact(agent->masterDb);
}
// Create the server confirmation message that we are running the new core
MeshCommand_BinaryPacket_CoreModule *rcm = (MeshCommand_BinaryPacket_CoreModule*)ILibScratchPad2;
((unsigned short*)ILibScratchPad2)[0] = htons(MeshCommand_CoreModuleHash); // MeshCommand_CoreModuleHash (11), SHA384 hash of the code module
((unsigned short*)ILibScratchPad2)[1] = htons(requestid); // Request id
memcpy_s(ILibScratchPad2 + 4, sizeof(ILibScratchPad2) - 4, hashref, UTIL_SHA384_HASHSIZE); // SHA384 hash
// Send the confirmation to the server
ILibWebClient_WebSocket_Send(WebStateObject, ILibWebClient_WebSocket_DataType_BINARY, (char*)rcm, sizeof(MeshCommand_BinaryPacket_CoreModule), ILibAsyncSocket_MemoryOwnership_USER, ILibWebClient_WebSocket_FragmentFlag_Complete);
}
else if (cmdLen == 4)
{
// Server is telling us to stop running a core
ILibSimpleDataStore_Delete(agent->masterDb, "CoreModule"); // Clear the core from datastore
// Stop the current JavaScript core if present and launch the new one.
ILibRemoteLogging_printf(ILibChainGetLogger(agent->chain), ILibRemoteLogging_Modules_Microstack_Generic | ILibRemoteLogging_Modules_ConsolePrint,
ILibRemoteLogging_Flags_VerbosityLevel_1, "MeshCore: Stop");
ScriptEngine_Stop(agent, MeshAgent_JavaCore_ContextGuid);
// Confirm to the server that we are not running any core
MeshCommand_BinaryPacket_CoreModule *rcm = (MeshCommand_BinaryPacket_CoreModule*)ILibScratchPad2;
rcm->command = htons(MeshCommand_CoreModuleHash); // MeshCommand_CoreModuleHash (11), SHA384 hash of the code module
rcm->request = htons(requestid); // Request id
ILibWebClient_WebSocket_Send(WebStateObject, ILibWebClient_WebSocket_DataType_BINARY, (char*)rcm, 4, ILibAsyncSocket_MemoryOwnership_USER, ILibWebClient_WebSocket_FragmentFlag_Complete);
}
break;
}
case MeshCommand_CoreModuleHash: // Request/return the SHA384 hash of the core module
{
// Tell the server what core module we are running
char *hashref = ILibSimpleDataStore_GetHash(agent->masterDb, "CoreModule"); // Get the reference to the SHA384 hash
int len = agent->localScript == 0 ? 4 : (int)sizeof(MeshCommand_BinaryPacket_CoreModule);
// Confirm to the server what core we are running
MeshCommand_BinaryPacket_CoreModule *rcm = (MeshCommand_BinaryPacket_CoreModule*)ILibScratchPad2;
memset(rcm, 0, sizeof(MeshCommand_BinaryPacket_CoreModule));
rcm->command = htons(MeshCommand_CoreModuleHash); // MeshCommand_CoreModuleHash (11), SHA384 hash of the code module
rcm->request = htons(requestid); // Request id
if (agent->localScript == 0 && hashref != NULL) { memcpy_s(rcm->coreModuleHash, sizeof(rcm->coreModuleHash), hashref, UTIL_SHA384_HASHSIZE); len = sizeof(MeshCommand_BinaryPacket_CoreModule); }
// Send the confirmation to the server
ILibWebClient_WebSocket_Send(WebStateObject, ILibWebClient_WebSocket_DataType_BINARY, (char*)rcm, len, ILibAsyncSocket_MemoryOwnership_USER, ILibWebClient_WebSocket_FragmentFlag_Complete);
break;
}
case MeshCommand_CoreOk: // Message from the server indicating our meshcore is ok. No update needed.
{
printf("Server verified meshcore...");
if (agent->coreTimeout != NULL)
{
// Cancel the timeout
duk_push_global_object(agent->meshCoreCtx); // [g]
duk_get_prop_string(agent->meshCoreCtx, -1, "clearTimeout");// [g][clearTimeout]
duk_swap_top(agent->meshCoreCtx, -2); // [clearTimeout][this]
duk_push_heapptr(agent->meshCoreCtx, agent->coreTimeout); // [clearTimeout][this][timeout]
duk_pcall_method(agent->meshCoreCtx, 1); duk_pop(agent->meshCoreCtx);
agent->coreTimeout = NULL;
int CoreModuleLen = ILibSimpleDataStore_Get(agent->masterDb, "CoreModule", NULL, 0);
if (CoreModuleLen <= 0)
{
printf(" meshcore not found...\n");
}
else
{
printf(" Launching meshcore...\n");
char *CoreModule;
if (agent->jsDebugPort != 0)
{
char tmp[255];
int tmpLen = sprintf_s(tmp, sizeof(tmp), "attachDebugger({ webport: %d, wait: 1 }).then(function (prt) { console.log('Point Browser for Debug to port: ' + prt); });\n", agent->jsDebugPort);
CoreModule = (char*)ILibMemory_Allocate(CoreModuleLen + tmpLen, 0, NULL, NULL);
ILibSimpleDataStore_Get(agent->masterDb, "CoreModule", CoreModule + tmpLen - 4, CoreModuleLen + tmpLen);
memcpy_s(CoreModule + 4, CoreModuleLen - 4, tmp, tmpLen);
CoreModuleLen += (tmpLen-4);
}
else
{
CoreModule = (char*)ILibMemory_Allocate(CoreModuleLen, 0, NULL, NULL);
ILibSimpleDataStore_Get(agent->masterDb, "CoreModule", CoreModule, CoreModuleLen);
}
if (ILibDuktape_ScriptContainer_CompileJavaScriptEx(agent->meshCoreCtx, CoreModule + 4, CoreModuleLen - 4, "CoreModule.js", 13) != 0 ||
ILibDuktape_ScriptContainer_ExecuteByteCode(agent->meshCoreCtx) != 0)
{
ILibRemoteLogging_printf(ILibChainGetLogger(agent->chain), ILibRemoteLogging_Modules_Microstack_Generic | ILibRemoteLogging_Modules_ConsolePrint,
ILibRemoteLogging_Flags_VerbosityLevel_1, "Error Executing MeshCore: %s", duk_safe_to_string(agent->meshCoreCtx, -1));
duk_pop(agent->meshCoreCtx);
}
free(CoreModule);
}
}
else
{
// There's no timeout, probably because the core is already running
printf(" meshcore already running...\n");
}
break;
}
case MeshCommand_AgentHash:
{
// This is a request for the hash of the agent binary
// Built the response that includes our self hash
MeshCommand_BinaryPacket_CoreModule *rcm = (MeshCommand_BinaryPacket_CoreModule*)ILibScratchPad2;
rcm->command = htons(MeshCommand_AgentHash); // MeshCommand_AgentHash (12), SHA384 hash of the agent executable
rcm->request = htons(requestid); // Request id
if (agent->disableUpdate != 0)
{
// Never update
memset(rcm->coreModuleHash, 0, UTIL_SHA384_HASHSIZE);
}
else if (agent->forceUpdate != 0)
{
// Always Update
memset(rcm->coreModuleHash, 0xFFFF, UTIL_SHA384_HASHSIZE);
if (agent->logUpdate != 0) { ILIBLOGMESSSAGE("SelfUpdate -> Forcing Update..."); }
}
else
{
// Update when necessary
memcpy_s(rcm->coreModuleHash, sizeof(rcm->coreModuleHash), agent->agentHash, UTIL_SHA384_HASHSIZE);// SHA384 hash of the agent executable
}
// Send the self hash back to the server
ILibWebClient_WebSocket_Send(WebStateObject, ILibWebClient_WebSocket_DataType_BINARY, (char*)rcm, sizeof(MeshCommand_BinaryPacket_CoreModule), ILibAsyncSocket_MemoryOwnership_USER, ILibWebClient_WebSocket_FragmentFlag_Complete);
break;
}
case MeshCommand_AgentUpdate:
{
#ifdef WIN32
char* updateFilePath = MeshAgent_MakeAbsolutePath(agent->exePath, ".update.exe");
#else
char* updateFilePath = MeshAgent_MakeAbsolutePath(agent->exePath, ".update");
#endif
char updateFileHash[UTIL_SHA384_HASHSIZE];
MeshCommand_BinaryPacket_CoreModule *cm = (MeshCommand_BinaryPacket_CoreModule*)cmd;
if (cmdLen == 4)
{
// Indicates the start of the agent update transfer
if (agent->logUpdate != 0) { ILIBLOGMESSSAGE("SelfUpdate -> Starting download..."); }
util_deletefile(updateFilePath);
} else if (cmdLen == sizeof(MeshCommand_BinaryPacket_CoreModule))
{
// Indicates the end of the agent update transfer
// Check the SHA384 hash of the received file against the file we got.
if ((GenerateSHA384FileHash(updateFilePath, updateFileHash) == 0) && (memcmp(updateFileHash, cm->coreModuleHash, sizeof(cm->coreModuleHash)) == 0))
{
//printf("UPDATE: End OK\r\n");
if (agent->logUpdate != 0) { ILIBLOGMESSSAGE("SelfUpdate -> Download Complete... Hash verified"); }
if (agent->fakeUpdate != 0)
{
int fsz;
char *fsc;
fsz = ILibReadFileFromDiskEx(&fsc, agent->exePath);
ILibWriteStringToDiskEx(updateFilePath, fsc, fsz);
if (agent->logUpdate != 0) { ILIBLOGMESSSAGE("SelfUpdate -> Overriding update with same version..."); }
}
if (agent->fakeUpdate != 0 || agent->forceUpdate != 0)
{
ILibSimpleDataStore_Put(agent->masterDb, "disableUpdate", "1");
if (agent->logUpdate != 0) { ILIBLOGMESSSAGE("SelfUpdate -> Disabling future updates..."); }
}
#ifdef WIN32
agent->performSelfUpdate = 1;
#else
// Set performSelfUpdate to the startupType, on Linux is this important: 1 = systemd, 2 = upstart, 3 = sysv-init
int len = ILibSimpleDataStore_Get(agent->masterDb, "StartupType", ILibScratchPad, sizeof(ILibScratchPad));
if (len > 0) { agent->performSelfUpdate = atoi(ILibScratchPad); }
if (agent->performSelfUpdate == 0) { agent->performSelfUpdate = 999; } // Never allow this value to be zero.
#endif
if (duk_peval_string_noresult(agent->meshCoreCtx, "require('service-manager').manager.getService('meshagentDiagnostic').start();") == 0)
{
if (agent->logUpdate != 0)
{
ILIBLOGMESSSAGE("SelfUpdate -> Starting Secondary Agent, to assist with self update");
}
}
else
{
if (agent->logUpdate != 0)
{
ILIBLOGMESSSAGE("SelfUpdate -> Secondary Agent unavailable to assist with self update");
}
}
// Everything looks good, lets perform the update
if (agent->logUpdate != 0)
{
char tmp[255];
sprintf_s(tmp, sizeof(tmp), "SelfUpdate -> Stopping Chain (%d)", agent->performSelfUpdate);
ILIBLOGMESSSAGE(tmp);
}
ILibStopChain(agent->chain);
} else
{
// Hash check failed, delete the file and do nothing. On next server reconnect, we will try again.
if (agent->logUpdate != 0) { ILIBLOGMESSSAGE("SelfUpdate -> Download Complete... Hash FAILED, aborting update..."); }
util_deletefile(updateFilePath);
}
}
break;
}
case MeshCommand_AgentUpdateBlock:
{
// Write the mesh agent block to file
#ifdef WIN32
char* updateFilePath = MeshAgent_MakeAbsolutePath(agent->exePath, ".update.exe");
#else
char* updateFilePath = MeshAgent_MakeAbsolutePath(agent->exePath, ".update");
#endif
// We have to try to write until it works, fopen sometimes fails
while (util_appendfile(updateFilePath, cmd + 4, cmdLen - 4) == 0)
{
#ifdef WIN32
Sleep(100);
#else
sleep(100);
#endif
}
// Confirm we got a mesh agent update block
((unsigned short*)ILibScratchPad2)[0] = htons(MeshCommand_AgentUpdateBlock); // MeshCommand_AgentHash (14), SHA384 hash of the agent executable
((unsigned short*)ILibScratchPad2)[1] = htons(requestid); // Request id
ILibWebClient_WebSocket_Send(WebStateObject, ILibWebClient_WebSocket_DataType_BINARY, ILibScratchPad2, 4, ILibAsyncSocket_MemoryOwnership_USER, ILibWebClient_WebSocket_FragmentFlag_Complete);
break;
}
}
}
void MeshServer_ControlChannel_IdleTimeout(ILibWebClient_StateObject WebStateObject, void *user)
{
MeshAgentHostContainer *agent = (MeshAgentHostContainer*)user;
ILibWebClient_WebSocket_Ping(WebStateObject);
ILibWebClient_SetTimeout(WebStateObject, agent->controlChannel_idleTimeout_seconds, MeshServer_ControlChannel_IdleTimeout, user);
ILibRemoteLogging_printf(ILibChainGetLogger(agent->chain), ILibRemoteLogging_Modules_Agent_GuardPost , ILibRemoteLogging_Flags_VerbosityLevel_1, "AgentCore/MeshServer_ControlChannel_IdleTimeout(): Sending Ping");
}
ILibWebClient_WebSocket_PingResponse MeshServer_ControlChannel_PingSink(ILibWebClient_StateObject WebStateObject, void *user)
{
return ILibWebClient_WebSocket_PingResponse_Respond;
}
void MeshServer_ControlChannel_PongSink(ILibWebClient_StateObject WebStateObject, void *user)
{
#ifdef _REMOTELOGGING
MeshAgentHostContainer *agent = (MeshAgentHostContainer*)user;
ILibRemoteLogging_printf(ILibChainGetLogger(agent->chain), ILibRemoteLogging_Modules_Agent_GuardPost , ILibRemoteLogging_Flags_VerbosityLevel_1, "AgentCore/MeshServer_ControlChannel_IdleTimeout(): Received Pong");
#endif
}
void MeshServer_OnResponse(ILibWebClient_StateObject WebStateObject, int InterruptFlag, struct packetheader *header, char *bodyBuffer, int *beginPointer, int endPointer, ILibWebClient_ReceiveStatus recvStatus, void *user1, void *user2, int *PAUSE)
{
MeshAgentHostContainer *agent = (MeshAgentHostContainer*)user1;
// Look at the various connection states and handle data if needed
switch (recvStatus)
{
case ILibWebClient_ReceiveStatus_Partial:
case ILibWebClient_ReceiveStatus_LastPartial:
*beginPointer = endPointer; // ToDo: Buffer this data and send it up
break;
case ILibWebClient_ReceiveStatus_Connection_Established: // New connection established.
{
if (agent->controlChannelDebug != 0)
{
printf("Control Channel Connection Established...\n");
ILIBLOGMESSAGEX("Control Channel Connection Established...\n");
}
#ifndef MICROSTACK_NOTLS
int len;
#endif
int idleLen;
if ((idleLen = ILibSimpleDataStore_Get(agent->masterDb, "controlChannelIdleTimeout", NULL, 0)) != 0)
{
if (idleLen > 15)
{
agent->controlChannel_idleTimeout_seconds = DEFAULT_IDLE_TIMEOUT;
}
else
{
char idleBuffer[16];
idleBuffer[ILibSimpleDataStore_Get(agent->masterDb, "controlChannelIdleTimeout", idleBuffer, sizeof(idleBuffer))] = 0;
agent->controlChannel_idleTimeout_seconds = atoi(idleBuffer);
}
}
else
{
agent->controlChannel_idleTimeout_seconds = DEFAULT_IDLE_TIMEOUT;
}
agent->controlChannel = WebStateObject; // Set the agent MeshCentral server control channel
ILibRemoteLogging_printf(ILibChainGetLogger(agent->chain), ILibRemoteLogging_Modules_Agent_GuardPost | ILibRemoteLogging_Modules_ConsolePrint, ILibRemoteLogging_Flags_VerbosityLevel_1, "Control Channel Idle Timeout = %d seconds", agent->controlChannel_idleTimeout_seconds);
ILibWebClient_SetTimeout(WebStateObject, agent->controlChannel_idleTimeout_seconds, MeshServer_ControlChannel_IdleTimeout, agent);
ILibWebClient_WebSocket_SetPingPongHandler(WebStateObject, MeshServer_ControlChannel_PingSink, MeshServer_ControlChannel_PongSink, agent);
#ifndef MICROSTACK_NOTLS
X509* peer = ILibWebClient_SslGetCert(WebStateObject);
agent->serverAuthState = 0; // We are not authenticated. Bitmask: 1 = Server Auth, 2 = Agent Auth.
agent->serverConnectionState = 2;
// Send the ServerID to the server, this is useful for the server to use the correct certificate to authenticate.
MeshCommand_BinaryPacket_ServerId *serveridcmd = (MeshCommand_BinaryPacket_ServerId*)ILibScratchPad2;
serveridcmd->command = htons(MeshCommand_ServerId);
memcpy_s(serveridcmd->serverId, sizeof(serveridcmd->serverId), agent->serverHash, sizeof(agent->serverHash)); // Place our mesh agent nonce
ILibWebClient_WebSocket_Send(WebStateObject, ILibWebClient_WebSocket_DataType_BINARY, (char*)serveridcmd, sizeof(MeshCommand_BinaryPacket_ServerId), ILibAsyncSocket_MemoryOwnership_USER, ILibWebClient_WebSocket_FragmentFlag_Complete);
// Check to see if we already have a validated TLS cert hash
{
MeshCommand_BinaryPacket_AuthRequest *ar = (MeshCommand_BinaryPacket_AuthRequest*)ILibScratchPad2;
util_certhash2(peer, ar->serverHash); // Hash the server certificate public key and place it
len = ILibSimpleDataStore_GetEx(agent->masterDb, "ServerTlsCertHash", 17, ILibScratchPad, sizeof(ILibScratchPad));
if ((len == UTIL_SHA384_HASHSIZE) && (memcmp(ILibScratchPad, ar->serverHash, UTIL_SHA384_HASHSIZE) == 0))
{
if (agent->controlChannelDebug != 0)
{
printf("TLS Server Cert matches Mesh Server Cert...\n");
ILIBLOGMESSAGEX("TLS Server Cert matches Mesh Server Cert...\n");
}
// The TLS certificate of this server is correct, no need to authenticate further.
unsigned short response = htons(MeshCommand_AuthConfirm); // Send indication to the server that it's already authenticated
agent->serverAuthState = 1;
ILibWebClient_WebSocket_Send(WebStateObject, ILibWebClient_WebSocket_DataType_BINARY, (char*)&response, 2, ILibAsyncSocket_MemoryOwnership_USER, ILibWebClient_WebSocket_FragmentFlag_Complete);
}
if (agent->controlChannelDebug != 0)
{
printf("Sending Authentication Data...\n");
ILIBLOGMESSAGEX("Sending Authentication Data...\n");
}
// Start authentication by sending a auth nonce & server TLS cert hash - If we indicated AuthConfirm already, the server will use this data but not respond to it.
// Send 384 bits SHA384 hash of TLS cert public key + 384 bits nonce
util_random(sizeof(agent->agentNonce), agent->agentNonce); // Generate a new mesh agent connection nonce
ar->command = htons(MeshCommand_AuthRequest); // MeshCommand_AuthRequest (1), server hash + nonce
if (peer != NULL) { X509_free(peer); }
memcpy_s(ar->serverNonce, sizeof(ar->serverNonce), agent->agentNonce, sizeof(agent->agentNonce)); // Place our mesh agent nonce
ILibWebClient_WebSocket_Send(WebStateObject, ILibWebClient_WebSocket_DataType_BINARY, (char*)ar, sizeof(MeshCommand_BinaryPacket_AuthRequest), ILibAsyncSocket_MemoryOwnership_USER, ILibWebClient_WebSocket_FragmentFlag_Complete);
// If we know this is a good server, send our agent information right now.
if (agent->serverAuthState == 1) { MeshServer_SendAgentInfo(agent, WebStateObject); }
}
#endif
break;
}
case ILibWebClient_ReceiveStatus_Complete: // Disconnection
if (agent->controlChannelDebug != 0)
{
printf("Control Channel Disconnected...\n");
ILIBLOGMESSAGEX("Control Channel Disconnected...\n");
}
// If the channel had been authenticates, inform JavaScript core module that we are not disconnected
#ifndef MICROSTACK_NOTLS
if (agent->serverAuthState == 3)
#endif
{
if (agent->meshCoreCtx != NULL)
{
ILibDuktape_MeshAgent_PUSH(agent->meshCoreCtx, agent->chain); // [agent]
duk_get_prop_string(agent->meshCoreCtx, -1, "emit"); // [agent][emit]
duk_swap_top(agent->meshCoreCtx, -2); // [emit][this]
duk_push_string(agent->meshCoreCtx, "Connected"); // [emit][this][Connected]
duk_push_int(agent->meshCoreCtx, 0); // [emit][this][Connected][0] (0 means disconnected)
if (duk_pcall_method(agent->meshCoreCtx, 2) != 0) { ILibDuktape_Process_UncaughtException(agent->meshCoreCtx); }
duk_pop(agent->meshCoreCtx);
}
}
agent->controlChannel = NULL; // Set the agent MeshCentral server control channel
agent->serverConnectionState = 0;
break;
case ILibWebClient_ReceiveStatus_MoreDataToBeReceived: // Data received
if (header->StatusCode == 101)
{
// Process Mesh Agent commands
MeshServer_ProcessCommand(WebStateObject, agent, bodyBuffer, endPointer);
}
else
{
printf("Protocol Error encountered...\n");
}
break;
}
// If there are no headers, this is a connection error. Log it and try again...
if (header == NULL)
{
if (ILibIsChainBeingDestroyed(agent->chain)) { return; }
ILibRemoteLogging_printf(ILibChainGetLogger(ILibWebClient_GetChainFromWebStateObject(WebStateObject)), ILibRemoteLogging_Modules_Agent_GuardPost, ILibRemoteLogging_Flags_VerbosityLevel_1, "Agent Host Container: Mesh Server Connection Error, trying again later.");
printf("Mesh Server Connection Error\n");
if (agent->logUpdate != 0)
{
sprintf_s(ILibScratchPad, sizeof(ILibScratchPad), "Connection Error [%p, %d]...\n", WebStateObject, InterruptFlag);
ILIBLOGMESSSAGE(ILibScratchPad);
}
if (agent->multicastServerUrl != NULL) { free(agent->multicastServerUrl); agent->multicastServerUrl = NULL; }
MeshServer_Connect(agent);
return;
}
if (recvStatus != ILibWebClient_ReceiveStatus_Partial) { *beginPointer = endPointer; } // TODO: Confirm with Bryan that this is how partial data works
}
#ifdef MICROSTACK_PROXY
void MeshServer_ConnectEx_Enumerate_Contexts(ILibHashtable sender, void *Key1, char* Key2, int Key2Len, void *Data, void *user)
{
MeshAgentHostContainer *agent = (MeshAgentHostContainer*)user;
if (Key1 == NULL && ((SCRIPT_ENGINE_ISOLATION*)Data)->reserved != 0)
{
// This is a regular Duktape Context
duk_context *ctx = (duk_context*)Data;
ScriptContainerSettings *settings = ScriptEngine_GetSettings(ctx);
if (settings != NULL && (settings->permissions & SCRIPT_ENGINE_NO_MESH_AGENT_ACCESS) == 0)
{
memcpy_s(&(ILibDuktape_GetNewGlobalTunnel(ctx)->proxyServer), sizeof(struct sockaddr_in6), agent->proxyServer, sizeof(struct sockaddr_in6));
}
}
}
#endif
void MeshServer_ConnectEx(MeshAgentHostContainer *agent)
{
int len, serverUrlLen;
char *path;
char *host;
char *serverUrl;
unsigned short port;
struct sockaddr_in6 meshServer;
ILibHTTPPacket *req;
ILibWebClient_RequestToken reqToken;
parser_result *rs;
parser_result_field *f;
// If this is called while we are in any connection state, just leave now.
if (agent->serverConnectionState != 0) return;
if (ILibIsChainBeingDestroyed(agent->chain) != 0) { return; }
len = ILibSimpleDataStore_Get(agent->masterDb, "MeshServer", ILibScratchPad2, sizeof(ILibScratchPad2));
if (len == 0) { printf("No MeshCentral settings found, place .msh file with this executable and restart.\r\n"); ILibRemoteLogging_printf(ILibChainGetLogger(agent->chain), ILibRemoteLogging_Modules_Microstack_Generic, ILibRemoteLogging_Flags_VerbosityLevel_1, "agentcore: MeshServer URI not found"); return; }
rs = ILibParseString(ILibScratchPad2, 0, len, ",", 1);
if (agent->serverIndex == 0)
{
int rval;
util_random(4, (char*)&rval);
agent->serverIndex = (rval % rs->NumResults) + 1;
}
else
{
#ifdef MICROSTACK_PROXY
if (agent->triedNoProxy_Index == agent->serverIndex)
#endif
{
agent->serverIndex = (agent->serverIndex % rs->NumResults) + 1;
agent->triedNoProxy_Index = agent->serverIndex - 1;
}
}
f = ILibParseString_GetResultIndex(rs, agent->serverIndex);
f->datalength = ILibTrimString(&(f->data), f->datalength);
f->data[f->datalength] = 0;
serverUrl = f->data;
serverUrlLen = f->datalength;
if (f->datalength == 5 && memcmp(f->data, "local", 5) == 0)
{
if (agent->multicastServerUrl != NULL) {
serverUrl = agent->multicastServerUrl;
serverUrlLen = (int)strlen(serverUrl);
} else {
// Multicast discovery packet to try to find our server
if ((agent->multicastDiscovery2 != NULL) && (ILibSimpleDataStore_Get(agent->masterDb, "ServerID", ILibScratchPad2, sizeof(ILibScratchPad2)) == 97)) { ILibMulticastSocket_Broadcast(agent->multicastDiscovery2, ILibScratchPad2, 96, 1); }
ILibDestructParserResults(rs);
MeshServer_Connect(agent);
return;
}
}
if (serverUrlLen < sizeof(agent->serveruri))
{
strcpy_s(agent->serveruri, sizeof(agent->serveruri), serverUrl);
}
else
{
agent->serveruri[0] = 0;
}
if (strcmp("wss://swarm.meshcentral.com:443/agent.ashx", agent->serveruri) == 0)
{
// Bad server value, from MeshCentral Migration... We need to fix the URI
if (agent->controlChannelDebug != 0)
{
printf("Swapping [%s] for [%s]\n", agent->serveruri, "wss://meshcentral.com:443/agent.ashx");
ILIBLOGMESSAGEX("Swapping [%s] for [%s]\n", agent->serveruri, "wss://meshcentral.com:443/agent.ashx");
}
strcpy_s(agent->serveruri, sizeof(agent->serveruri), "wss://meshcentral.com:443/agent.ashx");
strcpy_s(serverUrl, serverUrlLen, "wss://meshcentral.com:443/agent.ashx");
serverUrlLen = (int)strnlen_s(serverUrl, serverUrlLen);
}
#ifndef MICROSTACK_NOTLS
ILibParseUriResult result = ILibParseUri(serverUrl, &host, &port, &path, &meshServer);
#else
ILibParseUri(serverUrl, &host, &port, &path, &meshServer);
#endif
if (meshServer.sin6_family == AF_UNSPEC)
{
// Could not resolve host name
if (ILibSimpleDataStore_GetEx(agent->masterDb, serverUrl, serverUrlLen, (char*)&meshServer, sizeof(struct sockaddr_in6)) == 0)
{
meshServer.sin6_family = AF_UNSPEC;
ILibRemoteLogging_printf(ILibChainGetLogger(agent->chain), ILibRemoteLogging_Modules_Agent_GuardPost, ILibRemoteLogging_Flags_VerbosityLevel_1, "agentcore: Could not resolve: %s", ILibScratchPad);
printf("agentcore: Could not resolve: %s\n", host);
}
}
else
{
// Successfully resolved host name
struct sockaddr_in6 tempAddr;
len = ILibSimpleDataStore_GetEx(agent->masterDb, serverUrl, serverUrlLen, (char*)&tempAddr, sizeof(struct sockaddr_in6));
if (len == 0)
{
// No entry in DB, so update the value
ILibSimpleDataStore_PutEx(agent->masterDb, serverUrl, serverUrlLen, (char*)&meshServer, ILibInet_StructSize(&meshServer));
}
else
{
// Entry exists, lets see if we need to update
if (tempAddr.sin6_family != meshServer.sin6_family || memcmp(&tempAddr, &meshServer, ILibInet_StructSize(&meshServer)) != 0)
{
// Entry was different, so we need to update it
ILibSimpleDataStore_PutEx(agent->masterDb, serverUrl, serverUrlLen, (char*)&meshServer, ILibInet_StructSize(&meshServer));
}
}
}
ILibRemoteLogging_printf(ILibChainGetLogger(agent->chain), ILibRemoteLogging_Modules_Agent_GuardPost, ILibRemoteLogging_Flags_VerbosityLevel_1, "AgentCore: Attempting connection to: %s", serverUrl);
ILibDestructParserResults(rs);
if ((len = ILibSimpleDataStore_Get(agent->masterDb, "ServerID", ILibScratchPad2, sizeof(ILibScratchPad2))) == 0) { printf("ServerID entry not found in Db!\n"); free(host); free(path); return; }
rs = ILibParseString(ILibScratchPad2, 0, len, ",", 1);
f = ILibParseString_GetResultIndex(rs, agent->serverIndex);
if (f == NULL)
{
// Invalid Server ID Count
printf("ServerID Count Mismatch\r\n");
ILibRemoteLogging_printf(ILibChainGetLogger(agent->chain), ILibRemoteLogging_Modules_Agent_GuardPost, ILibRemoteLogging_Flags_VerbosityLevel_1, "AgentCore: ServerID Count Mismatch. Hash Count = %d, Server Index = %d", rs->NumResults, agent->serverIndex);
ILibDestructParserResults(rs);
free(host); free(path);
return;
}
f->datalength = ILibTrimString(&(f->data), f->datalength);
if (f->datalength / 2 > sizeof(agent->serverHash))
{
printf("ServerID too big\r\n");
ILibRemoteLogging_printf(ILibChainGetLogger(agent->chain), ILibRemoteLogging_Modules_Agent_GuardPost, ILibRemoteLogging_Flags_VerbosityLevel_1, "AgentCore: ServerID too big. Was %d bytes, but expected %d bytes", f->datalength / 2, sizeof(agent->serverHash) - 1);
ILibDestructParserResults(rs);
free(host); free(path);
return;
}
memset(agent->serverHash, 0, sizeof(agent->serverHash));
util_hexToBuf(f->data, f->datalength, agent->serverHash);
ILibDestructParserResults(rs);
len = ILibSimpleDataStore_Get(agent->masterDb, "MeshID", ILibScratchPad, sizeof(ILibScratchPad));
if ((len != 32) && (len != 48)) { printf("MeshID entry not found in db or bad size.\n"); return; } // Make sure MeshID is both present and SHA256 or SHA384.
memset(agent->meshId, 0, sizeof(agent->meshId)); // Clear the meshid first in case we copy SHA256
memcpy_s(agent->meshId, sizeof(agent->meshId), ILibScratchPad, len); // Copy the correct length
#ifndef MICROSTACK_NOTLS
util_keyhash(agent->selfcert, agent->g_selfid); // Compute our own identifier using our certificate
#endif
req = ILibCreateEmptyPacket();
ILibSetVersion(req, "1.1", 3);
ILibSetDirective(req, "GET", 3, path, (int)strnlen_s(path, serverUrlLen));
ILibAddHeaderLine(req, "Host", 4, host, (int)strnlen_s(host, serverUrlLen));
free(path);
if (meshServer.sin6_family != AF_UNSPEC)
{
strcpy_s(agent->serverip, sizeof(agent->serverip), ILibRemoteLogging_ConvertAddress((struct sockaddr*)&meshServer));
printf("Connecting to: %s\n", agent->serveruri);
if (agent->logUpdate != 0 || agent->controlChannelDebug != 0) { ILIBLOGMESSAGEX("Connecting to: %s\n", serverUrl); }
ILibWebClient_AddWebSocketRequestHeaders(req, 65535, MeshServer_OnSendOK);
if (agent->webSocketMaskOverride != 0) { ILibHTTPPacket_Stash_Put(req, "_WebSocketMaskOverride", 22, (void*)(uintptr_t)0x01); }
reqToken = ILibWebClient_PipelineRequest(agent->httpClientManager, (struct sockaddr*)&meshServer, req, MeshServer_OnResponse, agent, NULL);
#ifndef MICROSTACK_NOTLS
ILibWebClient_Request_SetHTTPS(reqToken, result == ILibParseUriResult_TLS ? ILibWebClient_RequestToken_USE_HTTPS : ILibWebClient_RequestToken_USE_HTTP);
ILibWebClient_Request_SetSNI(reqToken, host, (int)strnlen_s(host, serverUrlLen));
#endif
if ((ILibSimpleDataStore_GetEx(agent->masterDb, "ignoreProxyFile", 15, ILibScratchPad, sizeof(ILibScratchPad)) == 0) && ((len = ILibSimpleDataStore_Get(agent->masterDb, "WebProxy", ILibScratchPad, sizeof(ILibScratchPad))) != 0 || (len = MeshAgent_GetSystemProxy(agent, ILibScratchPad, sizeof(ILibScratchPad))) != 0))
{
#ifdef MICROSTACK_PROXY
unsigned short proxyPort = 80;
int delimiter = ILibString_LastIndexOf(ILibScratchPad, len, ":", 1);
if (agent->triedNoProxy_Index < agent->serverIndex && agent->proxyServer != NULL)
{
printf("Disabling Proxy: %s\n", ILibScratchPad);
agent->triedNoProxy_Index++;
agent->proxyServer = ILibWebClient_SetProxy(reqToken, NULL, 0, NULL, NULL);;
if (duk_peval_string(agent->meshCoreCtx, "require('global-tunnel');") == 0)
{
duk_get_prop_string(agent->meshCoreCtx, -1, "end"); // [tunnel][end]
duk_swap_top(agent->meshCoreCtx, -2); // [end][this]
duk_pcall_method(agent->meshCoreCtx, 0); // [undefined]
}
duk_pop(agent->meshCoreCtx); // ...
}
else
{
printf("Using proxy: %s\n", ILibScratchPad);
if(agent->logUpdate != 0)
{
ILIBLOGMESSAGEX("Using proxy: %s", ILibScratchPad);
}
if (delimiter > 0)
{
ILibScratchPad[delimiter] = 0;
ILibScratchPad[len] = 0;
proxyPort = atoi(ILibScratchPad + delimiter + 1);
}
agent->proxyServer = ILibWebClient_SetProxy(reqToken, ILibScratchPad, proxyPort, NULL, NULL);
if (agent->proxyServer != NULL)
{
memcpy_s(&(ILibDuktape_GetNewGlobalTunnel(agent->meshCoreCtx)->proxyServer), sizeof(struct sockaddr_in6), agent->proxyServer, sizeof(struct sockaddr_in6));
}
if (agent->logUpdate != 0) { ILibScratchPad[delimiter] = ':'; ILIBLOGMESSSAGE(ILibScratchPad); }
}
#else
ILibRemoteLogging_printf(ILibChainGetLogger(agent->chain), ILibRemoteLogging_Modules_Agent_GuardPost | ILibRemoteLogging_Modules_ConsolePrint, ILibRemoteLogging_Flags_VerbosityLevel_1, "AgentCore.MeshServer_ConnectEx(): Proxy Specified, but support was not enabled in this build");
#endif
}
else
{
// No Proxy was specified
agent->triedNoProxy_Index++;
}
agent->serverConnectionState = 1; // We are trying to connect
}
else
{
ILibDestructPacket(req);
MeshServer_Connect(agent);
}
free(host);
}
void MeshServer_Connect(MeshAgentHostContainer *agent)
{
unsigned int timeout;
// If this is called while we are in any connection state, just leave now.
if (agent->serverConnectionState != 0) return;
util_random(sizeof(int), (char*)&timeout);
agent->disableUpdate = ILibSimpleDataStore_Get(agent->masterDb, "disableUpdate", NULL, 0);
agent->forceUpdate = ILibSimpleDataStore_Get(agent->masterDb, "forceUpdate", NULL, 0);
agent->logUpdate = ILibSimpleDataStore_Get(agent->masterDb, "logUpdate", NULL, 0);
agent->fakeUpdate = ILibSimpleDataStore_Get(agent->masterDb, "fakeUpdate", NULL, 0);
agent->controlChannelDebug = ILibSimpleDataStore_Get(agent->masterDb, "controlChannelDebug", NULL, 0);
ILibDuktape_HECI_Debug = (ILibSimpleDataStore_Get(agent->masterDb, "heciDebug", NULL, 0) != 0);
#if defined(_LINKVM) && defined(_POSIX) && !defined(__APPLE__)
SLAVELOG = ILibSimpleDataStore_Get(agent->masterDb, "slaveKvmLog", NULL, 0);
#endif
if (agent->logUpdate != 0) { ILIBLOGMESSAGEX("PLATFORM_TYPE: %d\n", agent->platformType); }
if (agent->logUpdate != 0) { ILIBLOGMESSAGEX("Running as Service: %d\n", agent->JSRunningAsService); }
if (agent->logUpdate != 0) { ILIBLOGMESSSAGE("Attempting to connect to Server..."); }
if (agent->controlChannelDebug != 0)
{
ILIBLOGMESSSAGE("Attempting to connect to Server...");
printf("Attempting to connect to Server...\n");
}
else if (agent->logUpdate != 0) { ILIBLOGMESSSAGE("Attempting to connect to Server..."); }
if (agent->retryTime == 0)
{
agent->retryTime = (timeout % 1500) + 500; // Random value between 500 and 2000
MeshServer_ConnectEx(agent);
}
else
{
int delay;
if (agent->retryTime >= 240000)
{
// Cap at around 4 minutes
delay = 240000 + (timeout % 120000); // Random value between 4 and 6 minutes
}
else
{
delay = agent->retryTime + (timeout % agent->retryTime); // Random value between current value and double the current value
}
printf("AutoRetry Connect in %d milliseconds\n", delay);
ILibLifeTime_AddEx(ILibGetBaseTimer(agent->chain), agent, delay, (ILibLifeTime_OnCallback)MeshServer_ConnectEx, NULL);
agent->retryTime = delay;
}
}
#ifndef MICROSTACK_NOTLS
int ValidateMeshServer(ILibWebClient_RequestToken sender, int preverify_ok, STACK_OF(X509) *certs, struct sockaddr_in6 *address)
{
// Server validation is always true here. We will do a second round within the websocket to see if the server is really valid or not.
return 1;
}
#endif
void checkForEmbeddedMSH(MeshAgentHostContainer *agent)
{
FILE *tmpFile = NULL;
int mshLen;
#ifdef WIN32
fopen_s(&tmpFile, agent->exePath, "rb");
#else
tmpFile = fopen(agent->exePath, "rb");
#endif
if (tmpFile == NULL) { return; }
fseek(tmpFile, -16, SEEK_END);
ignore_result(fread(ILibScratchPad, 1, 16, tmpFile));
if (memcmp(ILibScratchPad, exeMeshPolicyGuid, 16) == 0)
{
// Found Embedded MSH File
fseek(tmpFile, -20, SEEK_CUR);
if (fread((void*)&mshLen, 1, 4, tmpFile) == 4)
{
mshLen = ntohl(mshLen);
fseek(tmpFile, -4 - mshLen, SEEK_CUR);
char *eMSH = ILibMemory_AllocateA(mshLen);
if (fread(eMSH, 1, mshLen, tmpFile) == mshLen)
{
FILE *msh = NULL;
#ifdef WIN32
fopen_s(&msh, MeshAgent_MakeAbsolutePath(agent->exePath, ".msh"), "wb");
#else
msh = fopen(MeshAgent_MakeAbsolutePath(agent->exePath, ".msh"), "wb");
#endif
if (msh != NULL)
{
ignore_result(fwrite(eMSH, 1, mshLen, msh));
fclose(msh);
}
}
}
}
fclose(tmpFile);
}
int importSettings(MeshAgentHostContainer *agent, char* fileName)
{
int eq;
char* importFile;
int importFileLen;
parser_result *pr;
parser_result_field *f;
importFileLen = ILibReadFileFromDiskEx(&importFile, fileName);
if (importFileLen == 0) { return(0); }
//printf("Importing settings file: %s\n", fileName);
pr = ILibParseString(importFile, 0, importFileLen, "\n", 1);
f = pr->FirstResult;
while (f != NULL)
{
f->datalength = ILibTrimString(&(f->data), f->datalength);
if (f->data[0] != 35) // Checking to see if this line is commented out
{
eq = ILibString_IndexOf(f->data, f->datalength, "=", 1);
if (eq > 0)
{
char *key, *val;
int keyLen, valLen;
key = f->data;
keyLen = eq;
key[keyLen] = 0;
val = key + keyLen + 1;
valLen = f->datalength - keyLen - 1;
if (val[valLen - 1] == 13) { --valLen; }
valLen = ILibTrimString(&val, valLen);
if (!(keyLen == 10 && strncmp("CoreModule", key, 10) == 0))
{
if (valLen == 0)
{
// Empty key, remove the value completely.
ILibSimpleDataStore_DeleteEx(agent->masterDb, key, keyLen);
}
else
{
if (ntohs(((unsigned short*)val)[0]) == HEX_IDENTIFIER)
{
// HEX value
ILibSimpleDataStore_PutEx(agent->masterDb, key, keyLen, ILibScratchPad2, util_hexToBuf(val + 2, valLen - 2, ILibScratchPad2));
}
else
{
// STRING value
val[valLen] = 0;
ILibSimpleDataStore_PutEx(agent->masterDb, key, keyLen, val, valLen + 1);
}
}
//printf("...Imported: %s\n", key);
}
}
}
f = f->NextResult;
}
ILibDestructParserResults(pr);
free(importFile);
return(importFileLen);
}
void agentDumpKeysSink(ILibSimpleDataStore sender, char* Key, int KeyLen, void *user)
{
if (KeyLen < sizeof(ILibScratchPad2))
{
memcpy_s(ILibScratchPad2, sizeof(ILibScratchPad2), Key, KeyLen);
ILibScratchPad2[KeyLen] = 0;
printf("--> %s\n", ILibScratchPad2);
}
}
MeshAgentHostContainer* MeshAgent_Create(MeshCommand_AuthInfo_CapabilitiesMask capabilities)
{
MeshAgentHostContainer* retVal = (MeshAgentHostContainer*)ILibMemory_Allocate(sizeof(MeshAgentHostContainer), 0, NULL, NULL);
#ifdef WIN32
SYSTEM_POWER_STATUS stats;
if ((retVal->shCore = (void*)LoadLibraryExA((LPCSTR)"Shcore.dll", NULL, LOAD_LIBRARY_SEARCH_SYSTEM32)) != NULL)
{
if ((retVal->dpiAwareness = (void*)GetProcAddress((HMODULE)retVal->shCore, (LPCSTR)"SetProcessDpiAwareness")) == NULL)
{
FreeLibrary(retVal->shCore);
retVal->shCore = NULL;
}
}
#endif
retVal->agentID = (AgentIdentifiers)MESH_AGENTID;
retVal->chain = ILibCreateChainEx(3 * sizeof(void*));
retVal->pipeManager = ILibProcessPipe_Manager_Create(retVal->chain);
retVal->capabilities = capabilities | MeshCommand_AuthInfo_CapabilitiesMask_CONSOLE | MeshCommand_AuthInfo_CapabilitiesMask_JAVASCRIPT;
#ifdef WIN32
HMODULE wsCORE = LoadLibraryExA((LPCSTR)"Ws2_32.dll", NULL, LOAD_LIBRARY_SEARCH_SYSTEM32);
GetHostNameWFunc ghnw = NULL;
if (wsCORE != NULL)
{
if ((ghnw = (GetHostNameWFunc)GetProcAddress(wsCORE, (LPCSTR)"GetHostNameW")) == NULL)
{
FreeLibrary(wsCORE);
wsCORE = NULL;
}
}
if (ghnw != NULL)
{
WCHAR whostname[MAX_PATH];
if (ghnw(whostname, MAX_PATH) == 0)
{
WideCharToMultiByte(CP_UTF8, 0, whostname, -1, retVal->hostname, (int)sizeof(retVal->hostname), NULL, NULL);
}
}
else
{
gethostname(retVal->hostname, (int)sizeof(retVal->hostname));
}
if (wsCORE != NULL)
{
FreeLibrary(wsCORE);
wsCORE = NULL;
}
#else
gethostname(retVal->hostname, (int)sizeof(retVal->hostname));
#endif
#ifdef WIN32
GetSystemPowerStatus(&stats);
switch (stats.BatteryFlag)
{
case 128:
retVal->batteryState = MeshAgentHost_BatteryInfo_NONE;
break;
case 255:
retVal->batteryState = MeshAgentHost_BatteryInfo_UNKNOWN;
break;
default:
retVal->batteryState = (MeshAgentHost_BatteryInfo)stats.BatteryFlag;
break;
}
#endif
((void**)ILibMemory_GetExtraMemory(retVal->chain, ILibMemory_CHAIN_CONTAINERSIZE))[2] = retVal;
return retVal;
}
void MeshAgent_Slave(MeshAgentHostContainer *agentHost)
{
// We are just a slave container
agentHost->exitCode = ILibDuktape_ScriptContainer_StartSlave(agentHost->chain, agentHost->pipeManager);
agentHost->chain = NULL;
}
void MeshAgent_ChainEnd(void *chain, void *user)
{
MeshAgentHostContainer *agent = (MeshAgentHostContainer*)user;
if (agent->meshCoreCtx != NULL)
{
if (g_displayFinalizerMessages) { printf("\n\n==> Stopping JavaScript Engine\n"); }
duk_destroy_heap(agent->meshCoreCtx);
if (agent->bootstrapCoreCtx != NULL)
{
duk_destroy_heap(agent->bootstrapCoreCtx);
agent->bootstrapCoreCtx = NULL;
}
}
agent->meshCoreCtx = NULL;
}
void MeshAgent_RunScriptOnly_Finalizer(duk_context *ctx, void *user)
{
MeshAgentHostContainer *agentHost = (MeshAgentHostContainer*)user;
agentHost->exitCode = ILibDuktape_Process_GetExitCode(ctx);
agentHost->meshCoreCtx = NULL;
if (ILibIsChainBeingDestroyed(agentHost->chain) == 0)
{
MeshAgent_Stop(agentHost);
}
}
void MeshAgent_CoreModule_UncaughtException(duk_context *ctx, char *msg, void *user)
{
printf("JavaCore UncaughtException: %s\n", msg);
}
void MeshAgent_AgentMode_IPAddressChanged_Handler(ILibIPAddressMonitor sender, void *user)
{
MeshAgentHostContainer *agentHost = (MeshAgentHostContainer*)user;
if (agentHost->serverConnectionState == 0)
{
ILibRemoteLogging_printf(ILibChainGetLogger(agentHost->chain), ILibRemoteLogging_Modules_Microstack_Generic | ILibRemoteLogging_Modules_ConsolePrint, ILibRemoteLogging_Flags_VerbosityLevel_1, "Network State Change detected... Resetting connection timeout");
ILibLifeTime_Remove(ILibGetBaseTimer(agentHost->chain), agentHost);
agentHost->retryTime = 3000;
ILibLifeTime_AddEx(ILibGetBaseTimer(agentHost->chain), agentHost, agentHost->retryTime, (ILibLifeTime_OnCallback)MeshServer_ConnectEx, NULL);
}
}
int MeshAgent_AgentMode(MeshAgentHostContainer *agentHost, int paramLen, char **param, int parseCommands);
void MeshAgent_AgentMost_dbRetryCallback(void *object)
{
MeshAgentHostContainer *agentHost = (MeshAgentHostContainer*)((void**)object)[0];
int paramLen = ((int*)&((void**)object)[1])[0];
char **param = (char**)((void**)object)[2];
int parseCommands = ((int*)&((void**)object)[3])[0];
if (MeshAgent_AgentMode(agentHost, paramLen, param, parseCommands) == 0)
{
ILibStopChain(agentHost->chain);
}
}
void MeshAgent_AgentMode_Core_ServerTimeout(duk_context *ctx, void ** args, int argsLen)
{
MeshAgentHostContainer *agentHost = (MeshAgentHostContainer*)args[0];
int CoreModuleLen = ILibSimpleDataStore_Get(agentHost->masterDb, "CoreModule", NULL, 0);
char *CoreModule;
duk_push_this(ctx); // [timeout]
duk_push_heap_stash(ctx); // [timeout][stash]
duk_del_prop_string(ctx, -1, Duktape_GetStashKey(duk_get_heapptr(ctx, -2)));
agentHost->coreTimeout = NULL;
printf("Timeout waiting for Server, launching cached meshcore...\n");
if (CoreModuleLen <= 0)
{
printf(" No meshcore found in db...\n");
}
else
{
CoreModule = (char*)ILibMemory_Allocate(CoreModuleLen, 0, NULL, NULL);
ILibSimpleDataStore_Get(agentHost->masterDb, "CoreModule", CoreModule, CoreModuleLen);
if (ILibDuktape_ScriptContainer_CompileJavaScriptEx(agentHost->meshCoreCtx, CoreModule + 4, CoreModuleLen - 4, "CoreModule.js", 13) != 0 ||
ILibDuktape_ScriptContainer_ExecuteByteCode(agentHost->meshCoreCtx) != 0)
{
ILibRemoteLogging_printf(ILibChainGetLogger(agentHost->chain), ILibRemoteLogging_Modules_Microstack_Generic | ILibRemoteLogging_Modules_ConsolePrint,
ILibRemoteLogging_Flags_VerbosityLevel_1, "Error Executing MeshCore: %s", duk_safe_to_string(agentHost->meshCoreCtx, -1));
duk_pop(agentHost->meshCoreCtx);
}
free(CoreModule);
}
}
int MeshAgent_AgentMode(MeshAgentHostContainer *agentHost, int paramLen, char **param, int parseCommands)
{
int resetNodeId = 0;
#ifdef WIN32
int pLen;
#endif
#ifdef _POSIX
#ifndef __APPLE__
int options = 0;
#endif
if (paramLen >= 2)
{
if ((strcmp(param[1], "stop") == 0 || strcmp(param[1], "-s") == 0))
{
// Stop
FILE *fd = NULL;
char str[15];
pid_t pid = 0;
size_t len;
fd = fopen("/var/run/meshagent.pid", "r");
if (fd == NULL) fd = fopen(".meshagent.pid", "r");
if (fd != NULL)
{
len = fread(str, sizeof(char), 15, fd);
if (len > 0)
{
sscanf(str, "%d\r\n", &pid);
if (pid > 0 && kill(pid, SIGKILL) == 0) printf("Mesh agent stopped.\r\n"); else printf("Mesh agent not running.\r\n");
remove("/var/run/meshagent.pid");
remove(".meshagent.pid");
}
fclose(fd);
exit(EXIT_SUCCESS);
}
else
{
printf("Unable to find process id file.\r\n");
exit(EXIT_FAILURE);
}
}
}
#endif
int ri;
for (ri = 0; ri < paramLen; ++ri)
{
if (strcmp(param[ri], "-recovery") == 0)
{
agentHost->capabilities |= MeshCommand_AuthInfo_CapabilitiesMask_RECOVERY; parseCommands = 0;
}
if (strcmp(param[ri], "-nocertstore") == 0)
{
parseCommands = 0;
#ifdef WIN32
printf("** Not using Certificate Store **\n");
agentHost->noCertStore = 1;
#endif
}
}
// We are a Mesh Agent
if (agentHost->masterDb == NULL) { agentHost->masterDb = ILibSimpleDataStore_Create(MeshAgent_MakeAbsolutePath(agentHost->exePath, ".db")); }
if (agentHost->masterDb == NULL)
{
void **data = (void**)ILibScratchPad;
data[0] = agentHost;
((int*)&(data[1]))[0] = paramLen;
data[2] = param;
((int*)&(data[3]))[0] = parseCommands;
switch (agentHost->dbRetryCount)
{
case 10:
printf("Unable to open database.\r\n");
return 0;
default:
printf("Unable to open database (%d/10)...\r\n", agentHost->dbRetryCount + 1);
agentHost->dbRetryCount++;
ILibLifeTime_AddEx(ILibGetBaseTimer(agentHost->chain), data, 2000, MeshAgent_AgentMost_dbRetryCallback, NULL);
return 1;
}
}
agentHost->httpClientManager = ILibCreateWebClient(3, agentHost->chain);
ILibRemoteLogging_printf(ILibChainGetLogger(agentHost->chain), ILibRemoteLogging_Modules_Microstack_Generic, ILibRemoteLogging_Flags_VerbosityLevel_1, "agentcore: argv[0] = %s", param[0]);
#if defined(_WINSERVICE)
// If running as a windows services, check the "ResetNodeId" key.
{
HKEY hKey;
DWORD len = 0;
if (RegOpenKeyEx(HKEY_LOCAL_MACHINE, TEXT("Software\\Open Source\\MeshAgent2"), 0, KEY_ALL_ACCESS, &hKey) == ERROR_SUCCESS)
{
if (RegQueryValueExA(hKey, TEXT("ResetNodeId"), NULL, NULL, NULL, &len) == ERROR_SUCCESS && len > 0)
{
if (RegDeleteValue(hKey, TEXT("ResetNodeId")) == ERROR_SUCCESS) { resetNodeId = 1; } // Force certificate reset
}
RegCloseKey(hKey);
}
}
#else
// If running in console mode, check the --resetnodeid command switch
if (parseCommands != 0)
{
int i;
// Parse command-line arguments
for (i = 0; i < paramLen; ++i) {
if (strcmp(param[i], "--resetnodeid") == 0) { resetNodeId = 1; }
}
}
#endif
#if !defined(MICROSTACK_NOTLS) || defined(_POSIX)
duk_context *tmpCtx = ILibDuktape_ScriptContainer_InitializeJavaScriptEngineEx(0, 0, agentHost->chain, NULL, NULL, agentHost->exePath, NULL, NULL, NULL);
duk_peval_string_noresult(tmpCtx, "require('linux-pathfix')();");
agentHost->platformType = MeshAgent_Posix_PlatformTypes_UNKNOWN;
agentHost->JSRunningAsService = 0;
if (duk_peval_string(tmpCtx, "(function foo() { var f = require('service-manager').manager.getServiceType(); switch(f){case 'windows': return(10); case 'launchd': return(3); case 'freebsd': return(5); case 'systemd': return(1); case 'init': return(2); case 'upstart': return(4); default: return(0);}})()") == 0)
{
agentHost->platformType = (MeshAgent_Posix_PlatformTypes)duk_get_int(tmpCtx, -1);
}
if (duk_peval_string(tmpCtx, "require('service-manager').manager.getService(process.platform=='win32'?'Mesh Agent':'meshagent').isMe();") == 0)
{
agentHost->JSRunningAsService = duk_get_boolean(tmpCtx, -1);
}
#endif
#if !defined(MICROSTACK_NOTLS)
// Check the local MacAddresses, to see if we need to reset our NodeId
if (duk_peval_string(tmpCtx, "(function _getMac() { var ret = ''; var ni = require('os').networkInterfaces(); for (var f in ni) { for (var i in ni[f]) { if(ni[f][i].type == 'ethernet' || ni[f][i].type == 'wireless') {ret += ('[' + ni[f][i].mac + ']');} } } return(ret); })();") == 0)
{
int len;
duk_size_t macLen;
char *mac = (char*)duk_get_lstring(tmpCtx, -1, &macLen);
if (macLen >= 19) // Only continue if we have at least 1 MAC Address
{
if ((len = ILibSimpleDataStore_Get(agentHost->masterDb, "LocalMacAddresses", NULL, 0)) == 0)
{
// We didn't have any MAC addresses in the db, so put them there, and return
ILibSimpleDataStore_PutEx(agentHost->masterDb, "LocalMacAddresses", 17, mac, (int)macLen);
}
else
{
// We have MAC addresses in the db, so before we compare them, lets check that we have MAC addresses on the
// system that aren't just zeros. So lets count how many we have
int i = 0;
while (i < (int)macLen)
{
if (strncmp(mac + i, "[00:00:00:00:00:00]", 19) != 0) { break; }
i += 19;
}
if (i < (int)macLen)
{
// We have at least one valid MAC address, so we can continue with the checks
i = 0;
char *curr = ILibMemory_AllocateA(len);
ILibSimpleDataStore_Get(agentHost->masterDb, "LocalMacAddresses", curr, len);
while (i < len)
{
if (strncmp(curr + i, "[00:00:00:00:00:00]", 19) != 0)
{
if (ILibString_IndexOf(mac, (int)macLen, curr + i, 19) >= 0) { break; }
}
i += 19;
}
if (i >= len) { resetNodeId = 1; ILibSimpleDataStore_PutEx(agentHost->masterDb, "LocalMacAddresses", 17, mac, (int)macLen); }
}
}
}
}
duk_destroy_heap(tmpCtx);
// Load the mesh agent certificates
if ((resetNodeId == 1 || agent_LoadCertificates(agentHost) != 0) && agent_GenerateCertificates(agentHost, NULL) != 0) { printf("Certificate error\r\n"); }
if (agent_VerifyMeshCertificates(agentHost) != 0) { printf("Certificate validation error\r\n"); }
#else
printf("TLS support disabled\n");
#endif
// Read the .tag file if present and push it into the database
{
char* str = NULL;
int len = (int)util_readfile(MeshAgent_MakeAbsolutePath(agentHost->exePath, ".tag"), &str, 1024);
if (str != NULL) { ILibSimpleDataStore_PutEx(agentHost->masterDb, "Tag", 3, str, len); free(str); } else { ILibSimpleDataStore_DeleteEx(agentHost->masterDb, "Tag", 3); }
}
// Read the .proxy file if present and push it into the database
{
char tmp[255];
if (ILibSimpleDataStore_GetEx(agentHost->masterDb, "ignoreProxyFile", 15, tmp, sizeof(tmp)) == 0)
{
char* str = NULL;
int len = (int)util_readfile(MeshAgent_MakeAbsolutePath(agentHost->exePath, ".proxy"), &str, 1024);
if (str != NULL)
{
if (len > 0)
{
ILibSimpleDataStore_PutEx(agentHost->masterDb, "WebProxy", 8, str, len);
}
else
{
ILibSimpleDataStore_DeleteEx(agentHost->masterDb, "WebProxy", 8);
}
free(str);
}
}
}
// Check to see if we need to import a settings file
if (importSettings(agentHost, MeshAgent_MakeAbsolutePath(agentHost->exePath, ".mshx")) == 0)
{
if (importSettings(agentHost, MeshAgent_MakeAbsolutePath(agentHost->exePath, ".msh")) == 0)
{
if ((importSettings(agentHost, "mesh_linumshx") == 0) && (importSettings(agentHost, "mesh_limshx") == 0)) // Do this because the old agent would generate this bad file name on linux.
{
// Let's check to see if an .msh was embedded into our binary
checkForEmbeddedMSH(agentHost);
importSettings(agentHost, MeshAgent_MakeAbsolutePath(agentHost->exePath, ".msh"));
}
}
}
// Check to see if any capabilities are specified in the db
{
int dbCapabilities = 0;
if (ILibSimpleDataStore_Get(agentHost->masterDb, "AgentCapabilities", NULL, 0) == 4)
{
ILibSimpleDataStore_Get(agentHost->masterDb, "AgentCapabilities",(char*) &dbCapabilities, 4);
dbCapabilities = (int)ntohl(dbCapabilities);
agentHost->capabilities |= dbCapabilities;
}
}
#ifdef WIN32
// If running as a Windows service, set basic values to the registry, this allows other applications to know what the mesh agent is doing.
HKEY hKey;
#if defined(_WINSERVICE)
// If running as a Windows Service, save the key in LOCAL_MACHINE
if (RegCreateKey(agentHost->runningAsConsole == 0 ? HKEY_LOCAL_MACHINE : HKEY_CURRENT_USER, TEXT("Software\\Open Source\\MeshAgent2"), &hKey) == ERROR_SUCCESS)
#else
// If running in Console mode, save the key in CURRENT_USER
if (RegCreateKey(HKEY_CURRENT_USER, TEXT("Software\\Open Source\\MeshAgent2"), &hKey) == ERROR_SUCCESS)
#endif
{
int i, len;
char* tmp = NULL;
if ((agentHost->capabilities & MeshCommand_AuthInfo_CapabilitiesMask_RECOVERY) == 0)
{
// Save the NodeId
len = ILibBase64Encode(agentHost->g_selfid, UTIL_SHA384_HASHSIZE, &tmp);
if ((len > 0) && (tmp != NULL))
{
for (i = 0; i < len; i++) { if (tmp[i] == '+') { tmp[i] = '@'; } else if (tmp[i] == '/') { tmp[i] = '$'; } } // Replace + --> @ and / --> $
RegSetValueExA(hKey, "NodeId", 0, REG_SZ, tmp, len);
free(tmp);
tmp = NULL;
}
else { RegDeleteKeyA(hKey, "NodeId"); }
// Save the AgentHash
util_tohex(agentHost->agentHash, UTIL_SHA384_HASHSIZE, ILibScratchPad);
RegSetValueExA(hKey, "AgentHash", 0, REG_SZ, ILibScratchPad, (int)strlen(ILibScratchPad));
// Save the MeshId
if (ILibSimpleDataStore_Get(agentHost->masterDb, "MeshID", NULL, 0) == 0) { RegDeleteKeyA(hKey, "MeshId"); } else {
len = ILibSimpleDataStore_Get(agentHost->masterDb, "MeshID", ILibScratchPad2, (int)sizeof(ILibScratchPad2));
if (len > 0) {
len = ILibBase64Encode(ILibScratchPad2, len, &tmp);
if ((len > 0) && (tmp != NULL)) {
for (i = 0; i < len; i++) { if (tmp[i] == '+') { tmp[i] = '@'; } else if (tmp[i] == '/') { tmp[i] = '$'; } } // Replace + --> @ and / --> $
RegSetValueExA(hKey, "MeshId", 0, REG_SZ, tmp, len);
free(tmp);
tmp = NULL;
}
else { RegDeleteKeyA(hKey, "MeshId"); }
}
else { RegDeleteKeyA(hKey, "MeshId"); }
}
// Save a bunch of values in the registry
if ((pLen = ILibSimpleDataStore_Get(agentHost->masterDb, "MeshServer", ILibScratchPad2, (int)sizeof(ILibScratchPad2))) == 0) { RegDeleteKeyA(hKey, "MeshServerUrl"); } else { RegSetValueExA(hKey, "MeshServerUrl", 0, REG_SZ, (BYTE*)ILibScratchPad2, (int)strlen(ILibScratchPad2)); } // Save the mesh server URL
if ((pLen = ILibSimpleDataStore_Get(agentHost->masterDb, "ServerID", ILibScratchPad2, (int)sizeof(ILibScratchPad2))) == 0) { RegDeleteKeyA(hKey, "MeshServerId"); } else { RegSetValueExA(hKey, "MeshServerId", 0, REG_SZ, (BYTE*)ILibScratchPad2, (int)strlen(ILibScratchPad2)); } // Save the mesh server id
if ((pLen = ILibSimpleDataStore_Get(agentHost->masterDb, "WebProxy", ILibScratchPad2, (int)sizeof(ILibScratchPad2))) == 0) { RegDeleteKeyA(hKey, "Proxy"); } else { RegSetValueExA(hKey, "Proxy", 0, REG_SZ, (BYTE*)ILibScratchPad2, (int)strlen(ILibScratchPad2)); } // Save the proxy
if ((pLen = ILibSimpleDataStore_Get(agentHost->masterDb, "Tag", ILibScratchPad2, (int)sizeof(ILibScratchPad2))) == 0) { RegDeleteKeyA(hKey, "Tag"); } else { RegSetValueExA(hKey, "Tag", 0, REG_SZ, (BYTE*)ILibScratchPad2, (int)strlen(ILibScratchPad2)); } // Save the tag
}
else
{
// We're a Diagnostic Agent, so we only save a subset
// Save the NodeId
len = ILibBase64Encode(agentHost->g_selfid, UTIL_SHA384_HASHSIZE, &tmp);
if ((len > 0) && (tmp != NULL))
{
for (i = 0; i < len; i++) { if (tmp[i] == '+') { tmp[i] = '@'; } else if (tmp[i] == '/') { tmp[i] = '$'; } } // Replace + --> @ and / --> $
RegSetValueExA(hKey, "DiagnosticAgentNodeId", 0, REG_SZ, tmp, len);
free(tmp);
tmp = NULL;
}
else { RegDeleteKeyA(hKey, "DiagnosticAgentNodeId"); }
}
if (ILibSimpleDataStore_Get(agentHost->masterDb, "SelfNodeCert", NULL, 0) == 0)
{
int NodeIDLen = 0;
if ((NodeIDLen = ILibSimpleDataStore_Get(agentHost->masterDb, "NodeID", ILibScratchPad, (int)sizeof(ILibScratchPad))) == 0 || !(NodeIDLen == (int)sizeof(agentHost->g_selfid) && memcmp(agentHost->g_selfid, ILibScratchPad, NodeIDLen) == 0))
{
// NodeID isn't saved to db, so let's put it there
ILibSimpleDataStore_PutEx(agentHost->masterDb, "NodeID", 6, agentHost->g_selfid, (int)sizeof(agentHost->g_selfid));
}
}
// Close the registry key
RegCloseKey(hKey);
}
#endif
#ifndef MICROSTACK_NOTLS
if (agentHost->selftlscert.x509 == NULL) {
// We don't have a TLS certificate, so setup the client without one.
ILibWebClient_EnableHTTPS(agentHost->httpClientManager, NULL, NULL, ValidateMeshServer);
} else {
// We have a TLS certificate, use it for HTTPS client side auth (not super useful).
ILibWebClient_EnableHTTPS(agentHost->httpClientManager, &(agentHost->selftlscert), agentHost->selfcert.x509, ValidateMeshServer);
}
#endif
#if defined(_POSIX) && !defined(__APPLE__) // Excluding MacOS, becuase I found fork() doesn't work as expected on MacOS Sierra. Should be using launchctl on MacOS anyways
if (paramLen >= 2)
{
if ((strcmp(param[1], "start") == 0 || strcmp(param[1], "-d") == 0)) options = 1;
else if ((strcmp(param[1], "stop") == 0 || strcmp(param[1], "-s") == 0)) options = 2;
}
// Start
if (options & 1)
{
FILE *fd = NULL;
char str[15];
pid_t pid, sid;
size_t len;
ILibSimpleDataStore_Close(agentHost->masterDb);
agentHost->masterDb = NULL;
pid = fork();
if (pid < 0) { exit(EXIT_FAILURE); }
else if (pid > 0)
{
len = snprintf(str, 15, "%d\r\n", pid);
fd = fopen("/var/run/meshagent.pid", "w");
if (fd == NULL) fd = fopen(".meshagent.pid", "w");
if (fd != NULL)
{
if (fwrite(str, sizeof(char), len, fd)) {}
fclose(fd);
}
printf("Mesh agent started.\r\n");
exit(EXIT_SUCCESS);
}
sid = setsid();
if (sid < 0) { exit(EXIT_FAILURE); }
close(STDIN_FILENO);
close(STDOUT_FILENO);
close(STDERR_FILENO);
parseCommands = 0;
agentHost->masterDb = ILibSimpleDataStore_Create(MeshAgent_MakeAbsolutePath(agentHost->exePath, ".db"));
}
else if (options) { exit(EXIT_SUCCESS); }
#endif
if (parseCommands == 0 || paramLen == 1 || ((paramLen == 2) && (strcmp(param[1], "run") == 0 || strcmp(param[1], "connect") == 0)))
{
#ifdef WIN32
char* filePath = MeshAgent_MakeAbsolutePath(agentHost->exePath, ".update.exe");
#else
char* filePath = MeshAgent_MakeAbsolutePath(agentHost->exePath, ".update");
#endif
// Delete the mesh agent update file if there is one
util_deletefile(filePath);
// If there is a ".corereset" file, delete the core and remove the file.
filePath = MeshAgent_MakeAbsolutePath(agentHost->exePath, ".corereset");
if (ILibSimpleDataStore_Exists(filePath)) {
ILibSimpleDataStore_Delete(agentHost->masterDb, "CoreModule"); // Clear the core from datastore
util_deletefile(filePath);
}
// Check if there is a CoreModule in the db
char *CoreModule;
int CoreModuleLen = agentHost->localScript == 0 ? ILibSimpleDataStore_Get(agentHost->masterDb, "CoreModule", NULL, 0) : 0;
agentHost->webSocketMaskOverride = ILibSimpleDataStore_Get(agentHost->masterDb, "webSocketMaskOverride", NULL, 0);
if (ILibSimpleDataStore_Get(agentHost->masterDb, "jsDebugPort", NULL, 0) != 0)
{
char tmp[16];
int tmpLen = ILibSimpleDataStore_Get(agentHost->masterDb, "jsDebugPort", tmp, 16);
if (tmpLen > 0)
{
tmp[tmpLen] = 0;
agentHost->jsDebugPort = atoi(tmp);
}
}
agentHost->agentMode = 1;
ILibDuktape_ModSearch_ShowNames = ILibSimpleDataStore_Get(agentHost->masterDb, "showModuleNames", NULL, 0);
if (agentHost->meshCoreCtx != NULL)
{
ILibDuktape_MeshAgent_PUSH(agentHost->meshCoreCtx, agentHost->chain); // [agent]
duk_get_prop_string(agentHost->meshCoreCtx, -1, "emit"); // [agent][emit]
duk_swap_top(agentHost->meshCoreCtx, -2); // [emit][this]
duk_push_string(agentHost->meshCoreCtx, "Ready"); // [emit][this][Ready]
if (duk_pcall_method(agentHost->meshCoreCtx, 1) != 0) { ILibDuktape_Process_UncaughtException(agentHost->meshCoreCtx); }
duk_pop(agentHost->meshCoreCtx); // ...
}
if (agentHost->localScript == 0)
{
// Create the context for the Local CoreModule, regardless if we have one yet
agentHost->meshCoreCtx = ILibDuktape_ScriptContainer_InitializeJavaScriptEngineEx(0, 0, agentHost->chain, NULL, agentHost->masterDb, agentHost->exePath, agentHost->pipeManager, NULL, NULL);
ILibDuktape_MeshAgent_Init(agentHost->meshCoreCtx, agentHost->chain, agentHost);
ILibDuktape_SetNativeUncaughtExceptionHandler(agentHost->meshCoreCtx, MeshAgent_CoreModule_UncaughtException, agentHost);
if ((agentHost->coreDumpEnabled = ILibSimpleDataStore_Get(agentHost->masterDb, "coreDumpEnabled", NULL, 0)) != 0)
{
duk_eval_string_noresult(agentHost->meshCoreCtx, "process.coreDumpLocation = process.platform=='win32'?(process.execPath.replace('.exe', '.dmp')):(process.execPath + '.dmp');");
}
if (CoreModuleLen > 0)
{
if (ILibSimpleDataStore_Get(agentHost->masterDb, "noUpdateCoreModule", NULL, 0) != 0)
{
// CoreModule Updates are disabled
agentHost->localScript = 1; printf("** CoreModule: Update Disabled**\n");
// If updates are disabled, then we should launch the core now
CoreModule = (char*)ILibMemory_Allocate(CoreModuleLen, 0, NULL, NULL);
ILibSimpleDataStore_Get(agentHost->masterDb, "CoreModule", CoreModule, CoreModuleLen);
if (ILibDuktape_ScriptContainer_CompileJavaScriptEx(agentHost->meshCoreCtx, CoreModule + 4, CoreModuleLen - 4, "CoreModule.js", 13) != 0 ||
ILibDuktape_ScriptContainer_ExecuteByteCode(agentHost->meshCoreCtx) != 0)
{
ILibRemoteLogging_printf(ILibChainGetLogger(agentHost->chain), ILibRemoteLogging_Modules_Microstack_Generic | ILibRemoteLogging_Modules_ConsolePrint,
ILibRemoteLogging_Flags_VerbosityLevel_1, "Error Executing MeshCore: %s", duk_safe_to_string(agentHost->meshCoreCtx, -1));
duk_pop(agentHost->meshCoreCtx);
}
free(CoreModule);
}
else
{
// There's a CoreModule, but we should try to wait for the Server to verify the CoreModule before we run it.
// Otherwise, we run the risk that if the module is bad and causes a crash, the server will have no way to
// update/remedy the situation. We'll set a timeout, so if the server is unavailable, we'll run the core anyways.
agentHost->coreTimeout = ILibDuktape_Timeout(agentHost->meshCoreCtx, (void**)(void*[]) { agentHost }, 1, 60000, MeshAgent_AgentMode_Core_ServerTimeout);
duk_push_heap_stash(agentHost->meshCoreCtx); // [stash]
duk_push_heapptr(agentHost->meshCoreCtx, agentHost->coreTimeout); // [stash][timeout]
duk_put_prop_string(agentHost->meshCoreCtx, -2, Duktape_GetStashKey(agentHost->coreTimeout)); // [stash]
duk_pop(agentHost->meshCoreCtx); // ...
}
}
}
ILibIPAddressMonitor_Create(agentHost->chain, MeshAgent_AgentMode_IPAddressChanged_Handler, agentHost);
MeshServer_Connect(agentHost);
// We are acting as a mesh agent
if (((ILibSimpleDataStore_Get(agentHost->masterDb, "MeshServer", ILibScratchPad, sizeof(ILibScratchPad))) > 5) && (memcmp(ILibScratchPad, "local", 5) == 0))
{
// Mesh agent is in local mode, start the multicast server discovery
struct sockaddr_in multicastAddr4;
struct sockaddr_in6 multicastAddr6;
// Cleanup all addresses
memset(&multicastAddr4, 0, sizeof(struct sockaddr_in));
memset(&multicastAddr6, 0, sizeof(struct sockaddr_in6));
// Setup addresses
if (ILibDetectIPv6Support())
{
// IPv6 support
multicastAddr6.sin6_family = AF_INET6;
multicastAddr6.sin6_port = htons(16989);
ILibInet_pton(AF_INET6, MESH_MCASTv6_GROUP, &(multicastAddr6.sin6_addr));
}
// Setup multicastAddr4
multicastAddr4.sin_family = AF_INET;
multicastAddr4.sin_port = htons(16989);
ILibInet_pton(AF_INET, MESH_MCASTv4_GROUP, &(multicastAddr4.sin_addr));
// Multicast socket on fixed port, will receive multicast from the server.
agentHost->multicastDiscovery = ILibMulticastSocket_Create(agentHost->chain, 1024, MESH_AGENT_PORT, &multicastAddr4, &multicastAddr6, UDPSocket_OnData, agentHost, 1);
if (agentHost->multicastDiscovery == NULL) { ILIBMARKPOSITION(219); return 1; }
// Multicast socket on a random port, used to multicast to the server and receive server unicast responses.
agentHost->multicastDiscovery2 = ILibMulticastSocket_Create(agentHost->chain, 1024, 0, &multicastAddr4, &multicastAddr6, UDPSocket_OnData, agentHost, 1);
if (agentHost->multicastDiscovery2 == NULL) { ILIBMARKPOSITION(219); return 1; }
}
return 1;
}
return 0;
}
void MeshAgent_ScriptMode_UncaughtExceptionSink(duk_context *ctx, char *msg, void *user)
{
printf("*** UNCAUGHT EXCEPTION: %s ***\n", msg);
}
void MeshAgent_ScriptMode_MeshDesktop_PUSH(duk_context *ctx, void *chain)
{
duk_push_heap_stash(ctx); // [stash]
MeshAgentHostContainer *agent = (MeshAgentHostContainer*)Duktape_GetPointerProperty(ctx, -1, "\xFF_MeshDesktop_AgentPtr");
duk_pop(ctx);
duk_push_object(ctx);
ILibDuktape_WriteID(ctx, "MeshDesktop");
if (agent != NULL)
{
duk_push_pointer(ctx, agent);
duk_put_prop_string(ctx, -2, MESH_AGENT_PTR);
ILibDuktape_CreateInstanceMethod(ctx, "getRemoteDesktopStream", ILibDuktape_MeshAgent_getRemoteDesktop, 0);
}
}
duk_ret_t MeshAgent_ScriptMode_StartAgent(duk_context *ctx)
{
duk_push_current_function(ctx);
MeshAgentHostContainer *agent = (MeshAgentHostContainer*)Duktape_GetPointerProperty(ctx, -1, MESH_AGENT_PTR);
if (agent->bootstrapCoreCtx != NULL)
{
return(ILibDuktape_Error(ctx, "Already Started"));
}
agent->localScript = 0;
agent->bootstrapCoreCtx = agent->meshCoreCtx;
agent->meshCoreCtx = NULL;
duk_eval_string(ctx, "(function _getParams(){return(process.argv);})();"); // [array]
int paramLength = (int)duk_get_length(ctx, -1);
int i;
char **params = (char**)ILibMemory_AllocateA(paramLength * sizeof(char*));
for (i = 0; i < paramLength; ++i)
{
duk_get_prop_index(ctx, -1, i); // [array][value]
params[i] = (char*)duk_to_string(ctx, -1);
duk_pop(ctx); // [array]
}
if (MeshAgent_AgentMode(agent, paramLength, params, 0) == 0)
{
duk_eval_string_noresult(ctx, "process.exit();"); // Agent Error, exit
}
return(0);
}
void MeshAgent_ScriptMode(MeshAgentHostContainer *agentHost, int argc, char **argv)
{
char *jsFile;
int jsFileLen;
int i;
unsigned int execTimeout = 0;
unsigned int secFlags = 0;
char **scriptArgs = NULL;
char *jsPath;
int sx = 1;
int connectAgent = 0;
int pathLen = 0;
if (agentHost->meshCoreCtx_embeddedScript == NULL)
{
// Get the full path name of the JavaScript file
#ifdef WIN32
pathLen = GetFullPathName(argv[1], sizeof(ILibScratchPad2), ILibScratchPad2, NULL);
#else
if (realpath(argv[1], ILibScratchPad2) != NULL) { pathLen = strnlen_s(ILibScratchPad2, PATH_MAX); }
#endif
// Try to load the JavaScript file from disk, if fail, return
jsFileLen = ILibReadFileFromDiskEx(&jsFile, ILibScratchPad2);
if (jsFileLen == 0) { printf("ERROR loading %s\n", ILibScratchPad2); return; }
// We need to pass the JavaScript full path to the JavaScript runtime as the first argument. Set the up here.
scriptArgs = (char**)ILibMemory_Allocate((1 + argc) * sizeof(char*), 1 + pathLen, NULL, (void**)&jsPath); // KLOCWORK is being dumb, becuase ILibScratchpad2 is gauranteed to be NULL terminated
strncpy_s(jsPath, ILibMemory_GetExtraMemorySize(jsPath), ILibScratchPad2, ILibMemory_GetExtraMemorySize(jsPath));
scriptArgs[0] = jsPath;
#ifdef WIN32
i = ILibString_LastIndexOf(ILibScratchPad2, pathLen, "\\", 1);
#else
i = ILibString_LastIndexOf(ILibScratchPad2, pathLen, "/", 1);
#endif
ILibScratchPad2[i] = 0;
#ifdef WIN32
SetCurrentDirectory(ILibScratchPad2);
#else
ignore_result(chdir(ILibScratchPad2));
#endif
// Parse arguments. Handle the ones we can, others will be passed to the JavaScript engine.
for (i = 2; i < argc; ++i)
{
if (agentHost->masterDb == NULL && strncmp(argv[i], "--script-db", 11) == 0 && ((i + 1) < argc))
{
// Specify DB file path
agentHost->masterDb = ILibSimpleDataStore_Create(MeshAgent_MakeAbsolutePath(agentHost->exePath, argv[i + 1]));
++i;
}
else if (strncmp(argv[i], "--script-flags", 14) == 0 && ((i + 1) < argc))
{
// JS Permissions (see .h for values)
if (ntohs(((unsigned short*)argv[i + 1])[0]) == HEX_IDENTIFIER)
{
int xlen = (int)strnlen_s(argv[i + 1], 32);
if (xlen <= 10)
{
util_hexToBuf(argv[i + 1] + 2, xlen - 2, (char*)&secFlags);
secFlags = ntohl(secFlags);
}
++i;
}
}
else if (strncmp(argv[i], "--script-timeout", 16) == 0 && ((i + 1) < argc))
{
// Seconds before watchdog termination, 0 for unlimited
execTimeout = (unsigned int)atoi(argv[i + 1]);
++i;
}
else if (strncmp(argv[i], "--script-connect", 16) == 0)
{
// Connect to MeshCentral
connectAgent = 1;
if (agentHost->masterDb == NULL)
{
agentHost->masterDb = ILibSimpleDataStore_Create(MeshAgent_MakeAbsolutePath(agentHost->exePath, ".db"));
}
}
else
{
// Unhandled arguments, passed to JavaScript
scriptArgs[sx++] = argv[i];
}
}
}
else
{
// Embedded JavaScript
jsFile = agentHost->meshCoreCtx_embeddedScript;
jsFileLen = agentHost->meshCoreCtx_embeddedScriptLen;
scriptArgs = (char**)ILibMemory_Allocate((1 + argc) * sizeof(char*), 0, NULL, NULL);
for (i = 1; i < argc; ++i)
{
scriptArgs[i] = argv[i];
}
scriptArgs[i] = NULL;
scriptArgs[0] = agentHost->exePath;
}
// Start the JavaScript engine, run the loaded .js file
agentHost->localScript = 1;
agentHost->meshCoreCtx = ILibDuktape_ScriptContainer_InitializeJavaScriptEngineEx(secFlags, execTimeout, agentHost->chain, scriptArgs, connectAgent != 0 ? agentHost->masterDb : NULL, agentHost->exePath, agentHost->pipeManager, connectAgent == 0 ? MeshAgent_RunScriptOnly_Finalizer : NULL, agentHost);
ILibDuktape_SetNativeUncaughtExceptionHandler(agentHost->meshCoreCtx, MeshAgent_ScriptMode_UncaughtExceptionSink, agentHost);
if (connectAgent != 0)
{
ILibDuktape_MeshAgent_Init(agentHost->meshCoreCtx, agentHost->chain, agentHost);
}
else
{
duk_push_heap_stash(agentHost->meshCoreCtx); // [stash]
duk_push_pointer(agentHost->meshCoreCtx, agentHost); // [stash][ptr]
duk_put_prop_string(agentHost->meshCoreCtx, -2, "\xFF_MeshDesktop_AgentPtr"); // [stash]
duk_pop(agentHost->meshCoreCtx); // ...
ILibDuktape_ModSearch_AddHandler(agentHost->meshCoreCtx, "meshDesktop", MeshAgent_ScriptMode_MeshDesktop_PUSH);
duk_push_global_object(agentHost->meshCoreCtx); // [g]
duk_push_c_function(agentHost->meshCoreCtx, MeshAgent_ScriptMode_StartAgent, 0);// [g][startAgent]
duk_push_pointer(agentHost->meshCoreCtx, agentHost); // [g][startAgent][agent]
duk_put_prop_string(agentHost->meshCoreCtx, -2, MESH_AGENT_PTR); // [g][startAgent]
duk_put_prop_string(agentHost->meshCoreCtx, -2, "startMeshAgent"); // [g]
duk_pop(agentHost->meshCoreCtx); // ...
}
#if defined(_POSIX)
duk_peval_string_noresult(agentHost->meshCoreCtx, "require('linux-pathfix')();");
#endif
if (ILibDuktape_ScriptContainer_CompileJavaScriptEx(agentHost->meshCoreCtx, jsFile, jsFileLen, agentHost->meshCoreCtx_embeddedScript == NULL ? scriptArgs[0] : "[embedded].js", 0) != 0 || ILibDuktape_ScriptContainer_ExecuteByteCode(agentHost->meshCoreCtx) != 0)
{
if (strcmp(duk_safe_to_string(agentHost->meshCoreCtx, -1), "Process.exit() forced script termination") != 0)
{
// Error
ILibRemoteLogging_printf(ILibChainGetLogger(agentHost->chain), ILibRemoteLogging_Modules_Microstack_Generic | ILibRemoteLogging_Modules_ConsolePrint, ILibRemoteLogging_Flags_VerbosityLevel_1, "Script Error: %s", duk_safe_to_string(agentHost->meshCoreCtx, -1));
}
duk_pop(agentHost->meshCoreCtx);
}
// JavaScript copies this, we do not need this anymore.
free(jsFile);
free(scriptArgs);
// If in agent mode, setup the chain to be a mesh agent
if (connectAgent != 0)
{
printf("MeshCentral2 Agent\r\n"); // MESH_AGENT_VERSION
if (MeshAgent_AgentMode(agentHost, argc, argv, 0) == 0)
{
ILibStopChain(agentHost->chain); // Agent Error, stop the chain
}
}
}
void MeshAgent_ScriptMode_Dispatched(void *chain, void *user)
{
MeshAgent_ScriptMode((MeshAgentHostContainer*)((void**)user)[0], ((int*)((void**)user)[1])[0], (char**)((void**)user)[2]);
}
void MeshAgent_AgentMode_Dispatched(void *chain, void *user)
{
printf("MeshCentral2 Agent\r\n"); // MESH_AGENT_VERSION
if (MeshAgent_AgentMode((MeshAgentHostContainer*)((void**)user)[0], ((int*)((void**)user)[1])[0], (char**)((void**)user)[2], 1) == 0)
{
ILibStopChain(((MeshAgentHostContainer*)((void**)user)[0])->chain);
}
}
#ifdef _POSIX
int MeshAgent_System(char *cmd)
{
//int status = -1;
pid_t pid = fork();
if(pid == 0)
{
// Child
execv("/bin/sh", (char**)(char*[]) { "sh", "-c", cmd, (char*)0 });
_exit(1);
}
else if (pid > 0)
{
// Parent
//waitpid(pid, &status, 0);
}
return(0);
}
#endif
int MeshAgent_Start(MeshAgentHostContainer *agentHost, int paramLen, char **param)
{
char exePath[1024];
#ifdef WIN32
int x;
#elif defined(__APPLE__)
uint32_t len = 1024;
#elif defined(NACL)
// Do nothing
#else
int x;
#endif
#if defined(WIN32) && defined(_LINKVM) && !defined(WINSERVICE)
if (agentHost->dpiAwareness != NULL)
{
agentHost->dpiAwareness(PROCESS_PER_MONITOR_DPI_AWARE);
}
else
{
SetProcessDPIAware();
}
#endif
if ((paramLen == 1 && strcmp(param[0], "--slave") == 0) || (paramLen == 2 && strcmp(param[1], "--slave") == 0)) { MeshAgent_Slave(agentHost); return 0; }
#ifndef __APPLE__
if (paramLen == 2 && strcmp(param[1], "--netinfo") == 0) { char* data; int len = MeshInfo_GetSystemInformation(&data); if (len > 0) { printf("%s\r\n", data); free(data); } return 0; }
#endif
if (agentHost->exePath == NULL)
{
agentHost->exePath = exePath;
exePath[0] = 0;
#ifdef WIN32
GetModuleFileName(NULL, exePath, sizeof(exePath));
#elif defined(__APPLE__)
if (_NSGetExecutablePath(exePath, &len) != 0) ILIBCRITICALEXIT(247);
exePath[(int)len] = 0;
agentHost->exePath = exePath;
#elif defined(NACL)
#else
#ifdef _FREEBSD
x = readlink("/proc/curproc/file", exePath, 1024);
#else
x = readlink("/proc/self/exe", exePath, 1024);
#endif
if (x < 0 || x >= 1024) ILIBCRITICALEXIT(246);
exePath[x] = 0;
#endif
}
// Perform a self SHA384 Hash
GenerateSHA384FileHash(agentHost->exePath, agentHost->agentHash);
#ifdef _REMOTELOGGINGSERVER
{
int len;
if (agentHost->masterDb == NULL && ILibSimpleDataStore_Exists(MeshAgent_MakeAbsolutePath(agentHost->exePath, ".db")) != 0)
{
agentHost->masterDb = ILibSimpleDataStore_Create(MeshAgent_MakeAbsolutePath(agentHost->exePath, ".db"));
if (agentHost->masterDb != NULL)
{
if ((len = ILibSimpleDataStore_Get(agentHost->masterDb, "enableILibRemoteLogging", ILibScratchPad, sizeof(ILibScratchPad))) != 0)
{
ILibScratchPad[len] = 0;
ILibStartDefaultLoggerEx(agentHost->chain, (unsigned short)atoi(ILibScratchPad), MeshAgent_MakeAbsolutePath(agentHost->exePath, ".wlg"));
}
ILibSimpleDataStore_Close(agentHost->masterDb);
agentHost->masterDb = NULL;
}
}
}
#endif
ILibCriticalLogFilename = ILibString_Copy(MeshAgent_MakeAbsolutePath(agentHost->exePath, ".log"), -1);
#ifndef MICROSTACK_NOTLS
util_openssl_init();
#endif
ILibChain_OnDestroyEvent_AddHandler(agentHost->chain, MeshAgent_ChainEnd, agentHost);
#ifdef WIN32
x = ILibString_LastIndexOf(param[0], -1, "\\", 1);
if (x > 0)
{
strncpy_s(ILibScratchPad2, sizeof(ILibScratchPad2), param[0], x);
ILibScratchPad2[x] = 0;
SetCurrentDirectory(ILibScratchPad2);
}
#endif
void *reserved[] = { agentHost, &paramLen, param };
// Check to see if we are running as just a JavaScript Engine
if (agentHost->meshCoreCtx_embeddedScript != NULL || (paramLen >= 2 && ILibString_EndsWith(param[1], -1, ".js", 3) != 0))
{
// We are acting as a scripting engine
ILibChain_RunOnMicrostackThreadEx(agentHost->chain, MeshAgent_ScriptMode_Dispatched, reserved);
ILibStartChain(agentHost->chain);
agentHost->chain = NULL;
}
else
{
// We are acting as an Agent
ILibChain_RunOnMicrostackThreadEx(agentHost->chain, MeshAgent_AgentMode_Dispatched, reserved);
ILibStartChain(agentHost->chain);
agentHost->chain = NULL; // Mesh agent has exited, set the chain to NULL
// Close the database
if (agentHost->masterDb != NULL) {
ILibSimpleDataStore_Close(agentHost->masterDb);
agentHost->masterDb = NULL;
}
// Check if we need to perform self-update (performSelfUpdate should indicate startup type on Liunx: 1 = systemd, 2 = upstart, 3 = sysv-init)
if (agentHost->performSelfUpdate != 0)
{
int i, ptr = 0;
#ifdef WIN32
STARTUPINFOA info = { sizeof(info) };
PROCESS_INFORMATION processInfo;
#endif
// Get the update executable path
#ifdef WIN32
char* updateFilePath = MeshAgent_MakeAbsolutePath(agentHost->exePath, ".update.exe"); // uses ILibScratchPad2
#else
char* updateFilePath = MeshAgent_MakeAbsolutePath(agentHost->exePath, ".update"); // uses ILibScratchPad2
#endif
char str[4096];
if (agentHost->logUpdate != 0) { ILIBLOGMESSSAGE("SelfUpdate -> Updating..."); }
// Build the argument list
str[0] = 0;
for (i = 1; i < paramLen && ptr >= 0; i++) ptr += sprintf_s(str + ptr, 4096 - ptr, " %s", param[i]);
#ifdef WIN32
// Windows version
sprintf_s(ILibScratchPad, sizeof(ILibScratchPad), "%s -update:\"%s\"%s", updateFilePath, agentHost->exePath, str);
if (!CreateProcessA(NULL, ILibScratchPad, NULL, NULL, TRUE, CREATE_NO_WINDOW, NULL, NULL, &info, &processInfo))
{
// We tried to execute a bad executable... not good. Lets try to recover.
if (agentHost->logUpdate != 0) { ILIBLOGMESSSAGE("SelfUpdate -> FAILED..."); }
if (updateFilePath != NULL && agentHost->exePath != NULL)
{
while (util_CopyFile(agentHost->exePath, updateFilePath, FALSE) == FALSE) Sleep(5000);
if (CreateProcessA(NULL, ILibScratchPad, NULL, NULL, TRUE, CREATE_NO_WINDOW, NULL, NULL, &info, &processInfo))
{
CloseHandle(processInfo.hProcess);
CloseHandle(processInfo.hThread);
}
}
}
else
{
CloseHandle(processInfo.hProcess);
CloseHandle(processInfo.hThread);
}
#else
if (agentHost->JSRunningAsService != 0)
{
// We were started as a service
if (agentHost->logUpdate != 0) { ILIBLOGMESSSAGE("SelfUpdate -> Service Check... [YES]"); }
struct stat results;
stat(agentHost->exePath, &results); // This the mode of the current executable
chmod(updateFilePath, results.st_mode); // Set the new executable to the same mode as the current one.
if (agentHost->platformType == MeshAgent_Posix_PlatformTypes_BSD)
{
// FreeBSD doesn't support hot-swapping the binary
if (agentHost->logUpdate != 0) { ILIBLOGMESSSAGE("SelfUpdate -> Handing off to child to complete"); }
sprintf_s(ILibScratchPad, sizeof(ILibScratchPad), "%s -exec \"var s=require('service-manager').manager.getService('meshagent');s.stop();require('fs').copyFileSync('%s', '%s');s.start();process.exit();\"", updateFilePath, updateFilePath, agentHost->exePath);
ignore_result(MeshAgent_System(ILibScratchPad));
}
else
{
sprintf_s(ILibScratchPad, sizeof(ILibScratchPad), "mv \"%s\" \"%s\"", updateFilePath, agentHost->exePath); // Move the update over our own executable
if (system(ILibScratchPad)) {}
switch (agentHost->platformType)
{
case MeshAgent_Posix_PlatformTypes_LAUNCHD:
if (agentHost->logUpdate != 0) { ILIBLOGMESSSAGE("SelfUpdate -> Complete... [kickstarting service]"); }
sprintf_s(ILibScratchPad, sizeof(ILibScratchPad), "launchctl kickstart -k system/meshagent"); // Restart the service
ignore_result(MeshAgent_System(ILibScratchPad));
break;
case MeshAgent_Posix_PlatformTypes_SYSTEMD:
if (agentHost->logUpdate != 0) { ILIBLOGMESSSAGE("SelfUpdate -> Complete... [SYSTEMD should auto-restart]"); }
exit(1);
break;
case MeshAgent_Posix_PlatformTypes_INITD:
if (agentHost->logUpdate != 0) { ILIBLOGMESSSAGE("SelfUpdate -> Complete... Calling Service restart (INITD)"); }
sprintf_s(ILibScratchPad, sizeof(ILibScratchPad), "service meshagent restart"); // Restart the service
ignore_result(MeshAgent_System(ILibScratchPad));
break;
case MeshAgent_Posix_PlatformTypes_INIT_UPSTART:
if (agentHost->logUpdate != 0) { ILIBLOGMESSSAGE("SelfUpdate -> Complete... Calling initctl restart (UPSTART)"); }
sprintf_s(ILibScratchPad, sizeof(ILibScratchPad), "initctl restart meshagent"); // Restart the service
ignore_result(MeshAgent_System(ILibScratchPad));
break;
default:
break;
}
}
}
else
{
if (agentHost->logUpdate != 0)
{
ILIBLOGMESSSAGE("SelfUpdate -> Service Check... [NO]");
ILIBLOGMESSSAGE("SelfUpdate -> Manual Mode (COMPLETE)");
}
// Generic update process, call our own update with arguments.
struct stat results;
stat(agentHost->exePath, &results); // This the mode of the current executable
chmod(updateFilePath, results.st_mode); // Set the new executable to the same mode as the current one.
sprintf_s(ILibScratchPad, sizeof(ILibScratchPad), "\"%s\" -update:\"%s\"%s &", updateFilePath, agentHost->exePath, str); // Launch the new executable for update.
if (system(ILibScratchPad)) {}
}
#endif
}
}
#ifndef MICROSTACK_NOTLS
util_openssl_uninit();
#endif
if (ILibCriticalLogFilename != NULL) free(ILibCriticalLogFilename);
return 0;
}
void MeshAgent_Destroy(MeshAgentHostContainer* agent)
{
#ifndef MICROSTACK_NOTLS
util_freecert(&agent->selftlscert);
util_freecert(&agent->selfcert);
#endif
if (agent->masterDb != NULL) { ILibSimpleDataStore_Close(agent->masterDb); agent->masterDb = NULL; }
if (agent->chain != NULL) { ILibChain_DestroyEx(agent->chain); agent->chain = NULL; }
#ifdef WIN32
if (agent->shCore != NULL)
{
FreeLibrary((HMODULE)agent->shCore);
}
#endif
free(agent);
}
void MeshAgent_Stop(MeshAgentHostContainer *agent)
{
ILibStopChain(agent->chain);
}
#ifdef WIN32
// Perform self-update (Windows console/tray version)
void MeshAgent_PerformSelfUpdate(char* selfpath, char* exepath, int argc, char **argv)
{
int i, ptr = 0;
STARTUPINFOA info = { sizeof(info) };
PROCESS_INFORMATION processInfo;
// Sleep for 5 seconds, this will give some time for the calling process to get going.
Sleep(5000);
// Built the argument list
ILibScratchPad[0] = 0;
for (i = 2; i < argc; i++) ptr += sprintf_s(ILibScratchPad + ptr, 4096 - ptr, " %s", argv[i]);
sprintf_s(ILibScratchPad2, 60000, "%s%s", exepath, ILibScratchPad);
// Attempt to copy our own exe over the original exe
while (util_CopyFile(selfpath, exepath, FALSE) == FALSE) Sleep(5000);
// Now run the process
if (!CreateProcessA(NULL, ILibScratchPad2, NULL, NULL, TRUE, 0, NULL, NULL, &info, &processInfo))
{
// TODO: Failed to run update.
}
else
{
CloseHandle(processInfo.hProcess);
CloseHandle(processInfo.hThread);
}
}
#else
// Perform self-update (Linux version)
void MeshAgent_PerformSelfUpdate(char* selfpath, char* exepath, int argc, char **argv)
{
int i, ptr = 0;
// First, we wait a little to give time for the calling process to exit
sleep(5);
// Attempt to copy our own exe over
remove(exepath);
sprintf_s(ILibScratchPad2, 6000, "cp \"%s\" \"%s\"", selfpath, exepath);
while (system(ILibScratchPad2) != 0)
{
sleep(5);
remove(exepath);
}
// Built the argument list
ILibScratchPad[0] = 0;
for (i = 2; i < argc && ptr >= 0; i++) ptr += sprintf_s(ILibScratchPad + ptr, 4096 - ptr, " %s", argv[i]);
sprintf_s(ILibScratchPad2, 60000, "%s%s &", exepath, ILibScratchPad);
// Now run the updated process
i = system(ILibScratchPad2);
UNREFERENCED_PARAMETER(i);
}
#endif
#ifdef __DOXY__
/*!
\implements EventEmitter
\brief JavaScript object interface for native Mesh Agent
*/
class MeshAgent
{
public:
/*!
\brief Event emitted when the MeshAgent is initialized and ready to connect
*/
void Ready;
/*!
\brief Event emitted when the MeshAgent has established an authenticated control channel with the server
*/
void Connected;
void kvmConnected;
/*!
\brief Event emitted when an LMS notification is received
\param notification <Object> Notification object in the format:\n
<b>messageId</b> \<String\>
<b>indicationTime</b> \<String\>
<b>messageArguments</b> \<String\>
<b>rawXML</b> \<String\>
*/
void lmsNotification;
/*!
\brief The Mesh Server the agent is connected to. If LAN Mode, will be 'local'
*/
String ConnectedServer;
/*!
\brief The fully qualified network uri that the agent is connected to (ie: <b>wss://www.meshcentral.com:443/agent.ashx</b>)
*/
String ServerUrl;
/*!
\brief Returns a DuplexStream KVM session, that can be piped to a data channel.
*/
DuplexStream getRemoteDesktopStream();
/*!
\brief Add a function callback to be added to the list of Command listeners, which gets dispatched whenever a command is received from the server.
\param handler <func>
*/
void AddCommandHandler(handler);
/*!
\brief Add a function callback that will get dispatched when the MeshAgent successfully establishes an authenticated control channel with the server
\param handler <func>
*/
void AddConnectHandler(handler);
/*!
\brief Send a command to the server
\param cmd \<Buffer\|String\|Object\> Command to send
\return <bool> False if the calling code should wait for the 'drain' event before sending more commands
*/
bool SendCommand(cmd);
/*!
\brief Property indicating if MicroLMS is active
*/
Integer activeMicroLMS;
/*!
\brief Property indicating if KVM Support is present
*/
Integer hasKVM;
/*!
\brief Property indicating if HECI support is present
*/
Integer hasHECI;
/*!
\brief Property containing MEInfo
*/
Object MEInfo;
/*!
\brief Property containing NetInfo
*/
Object NetInfo;
/*!
\brief Executes power state command on the computer (ie: Sleep, Hibernate...)
\param powerState <Integer>
\param force <Integer> Optional
\return <Integer> status
*/
Integer ExecPowerState(powerState[, force]);
/*!
\brief Generates a new self signed certificate
\param passphrase \<String\> passphrase for private key
\return \<Buffer\> PKS encoded certificate
*/
Buffer GenerateCertificate(passphrase);
};
#endif
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