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Feature: Add list_registry MCP tool

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Add a read-only list_registry MCP tool for querying a remote Windows
host's registry. An empty path returns the five root keys; a path such as
HKEY_LOCAL_MACHINE plus subkeys returns that key's immediate subkeys and
values (name, type, and formatted data).

Client side: enumerate with KEY_READ instead of KEY_ALL_ACCESS and map the
full value-type set (REG_SZ, REG_DWORD, REG_BINARY, REG_EXPAND_SZ,
REG_MULTI_SZ, REG_QWORD, REG_NONE) so unknown types are no longer
mis-reported as REG_SZ. The registry manager now always sends both the
TOKEN_REG_PATH and TOKEN_REG_KEY packets (an empty packet when a part is
empty), making the two-packet reply deterministic for the server.

Server side: add the three-phase flow (COMMAND_REGEDIT, COMMAND_REG_FIND,
then PATH plus KEY) with per-host pending state, parse the fixed-width
wire format with bounds checks, format value data for JSON, and guard
registry paths against exceeding MAX_PATH to protect the client stack.

Co-Authored-By: deepseek-v4-pro
This commit is contained in:
yuanyuanxiang
2026-08-23 10:37:55 +02:00
parent 8815c4f896
commit 8bd6f3b60a
5 changed files with 508 additions and 19 deletions
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39
client/RegisterOperation.cpp
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@@ -21,10 +21,13 @@ enum MYKEY {
enum KEYVALUE {
MREG_SZ,
MREG_DWORD,
MREG_BINARY,
MREG_EXPAND_SZ
MREG_SZ, // REG_SZ
MREG_DWORD, // REG_DWORD
MREG_BINARY, // REG_BINARY
MREG_EXPAND_SZ, // REG_EXPAND_SZ
MREG_MULTI_SZ, // REG_MULTI_SZ
MREG_QWORD, // REG_QWORD
MREG_NONE // REG_NONE / 未知类型
};
struct REGMSG {
@@ -70,7 +73,7 @@ char* RegisterOperation::FindPath()
char *szBuffer=NULL;
HKEY hKey; //注册表返回句柄
/*打开注册表 User kdjfjkf\kdjfkdjf\ */
if(RegOpenKeyEx(MKEY,KeyPath,0,KEY_ALL_ACCESS,&hKey)==ERROR_SUCCESS) { //打开
if(RegOpenKeyEx(MKEY,KeyPath,0,KEY_READ,&hKey)==ERROR_SUCCESS) { //打开
DWORD dwIndex=0,NameCount,NameMaxLen;
DWORD KeySize,KeyCount,KeyMaxLen,MaxDataLen;
//这就是枚举了
@@ -93,7 +96,7 @@ char* RegisterOperation::FindPath()
REGMSG msg; //数据头
msg.size=KeySize;
msg.count=KeyCount;
memcpy(szBuffer+1,(void*)&msg,Size);
memcpy(szBuffer+1,(void*)&msg,sizeof(REGMSG));
char * szTemp=new char[KeySize];
for(dwIndex=0; dwIndex<KeyCount; dwIndex++) { //枚举项
@@ -124,7 +127,7 @@ char* RegisterOperation::FindKey()
char *szBuffer=NULL;
HKEY hKey; //注册表返回句柄
if(RegOpenKeyEx(MKEY,KeyPath,0,KEY_ALL_ACCESS,&hKey)==ERROR_SUCCESS) { //打开
if(RegOpenKeyEx(MKEY,KeyPath,0,KEY_READ,&hKey)==ERROR_SUCCESS) { //打开
DWORD dwIndex=0,NameSize,NameCount,NameMaxLen,Type;
DWORD KeyCount,KeyMaxLen,DataSize,MaxDataLen;
//这就是枚举了
@@ -167,17 +170,17 @@ char* RegisterOperation::FindKey()
RegEnumValue(hKey,dwIndex,szValueName,&NameSize,
NULL,&Type,szValueData,&DataSize);//读取键值
if(Type==REG_SZ) {
szTemp[0]=MREG_SZ;
}
if(Type==REG_DWORD) {
szTemp[0]=MREG_DWORD;
}
if(Type==REG_BINARY) {
szTemp[0]=MREG_BINARY;
}
if(Type==REG_EXPAND_SZ) {
szTemp[0]=MREG_EXPAND_SZ;
// 值类型映射：REG_SZ/DWORD/BINARY/EXPAND_SZ 之外补 MULTI_SZ/QWORD/NONE，
// 未识别类型一律 MREG_NONE（避免误报为 REG_SZ）。
switch (Type) {
case REG_SZ: szTemp[0] = MREG_SZ; break;
case REG_EXPAND_SZ: szTemp[0] = MREG_EXPAND_SZ; break;
case REG_MULTI_SZ: szTemp[0] = MREG_MULTI_SZ; break;
case REG_DWORD: szTemp[0] = MREG_DWORD; break;
case REG_QWORD: szTemp[0] = MREG_QWORD; break;
case REG_BINARY: szTemp[0] = MREG_BINARY; break;
case REG_NONE: szTemp[0] = MREG_NONE; break;
default: szTemp[0] = MREG_NONE; break;
}
szTemp+=sizeof(BYTE);
strcpy(szTemp,szValueName);