192 lines
4.1 KiB
C
192 lines
4.1 KiB
C
#ifndef CONFIG
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#define CONFIG "config.h"
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#endif // CONFIG
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#include CONFIG
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#ifdef USE_MSRPC
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#if !defined(_WIN32) && !defined(__CYGWIN__)
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#error MSRPC is only available with native Windows or Cygwin
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#endif
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#include "msrpc-client.h"
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#include <stdio.h>
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#include "output.h"
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#include "helpers.h"
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#if __amd64 || defined(_M_AMD64) // 64-bit
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#ifndef _M_AMD64
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#define _M_AMD64
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#endif // _M_AMD64
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#include "KMSServer_c_x64_mingw_gcc.c"
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#else // 32-bit
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#include "KMSServer_c_mingw_gcc.c"
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#endif // 32-bit
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static RPC_CSTR stringBinding;
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jmp_buf jmp;
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RPC_STATUS PreviousRpcCallFailed = RPC_S_OK;
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/*
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* Creates an RPC string binding that is used to connect to the server.
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* Input is host:port, e.g. "[::1]:1688" or "127.0.0.1:1688"
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* Output is for example "ncacn_ip_tcp:127.0.0.1[endpoint=1688]"
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*/
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#if !__amd64
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#pragma GCC optimize("O0") ////TODO: Find out why gcc needs -O0 for RPC handling
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#endif
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static RPC_STATUS createStringBinding(char *const addr, RPC_CSTR* stringBinding)
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{
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char *szHost, *szPort;
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parseAddress(addr, &szHost, &szPort);
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return RpcStringBindingComposeA
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(
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NULL, /* UUID */
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(RPC_CSTR)"ncacn_ip_tcp", /* use TCP */
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(RPC_CSTR)szHost, /* host name or IP address */
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(RPC_CSTR)szPort, /* endpoint (TCP port here) */
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NULL, /* options */
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stringBinding /* resulting string binding */
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);
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}
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/*
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* This does not actually connect to a TCP port because MS RPC doesn't connect
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* before the actual RPC call is made. So this a stub
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*/
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RpcCtx connectToAddress(char *const addr, const int AddressFamily_unused, int_fast8_t showHostName_unused)
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{
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RPC_STATUS status;
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printf("Connecting to %s ... ", addr);
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if ((status = createStringBinding(addr, &stringBinding)) != RPC_S_OK)
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{
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errorout("%s\n", win_strerror(status));
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return !0;
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}
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if (PreviousRpcCallFailed)
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{
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errorout("%s\n", win_strerror(PreviousRpcCallFailed));
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return !0;
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}
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printf("successful\n");
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return 0;
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}
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/*
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* Does not do RPC binding on the wire. Just initializes the interface
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*/
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RpcStatus rpcBindClient(const RpcCtx handle, const int_fast8_t verbose)
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{
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RPC_STATUS status;
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if ((status = RpcBindingFromStringBindingA(stringBinding, &KMSServer_v1_0_c_ifspec)) != RPC_S_OK)
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{
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errorout("\n%s\n", win_strerror(status));
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}
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return status;
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}
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/*
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* You never know if you have a TCP connection or not
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* This returns true if the previous RPC call failed
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*/
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int_fast8_t isDisconnected(const RpcCtx handle)
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{
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return PreviousRpcCallFailed;
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}
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/*
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* This is the exception handler because the RPC call may
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* throw an SEH exception and gcc does not support
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* __try / __except as MSVC does.
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*/
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static LONG WINAPI rpcException (LPEXCEPTION_POINTERS exception_pointers)
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{
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DWORD exception = exception_pointers->ExceptionRecord->ExceptionCode;
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if (!exception) exception = (DWORD)~0;
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longjmp(jmp, exception_pointers->ExceptionRecord->ExceptionCode);
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return EXCEPTION_EXECUTE_HANDLER;
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}
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/*
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* This actually calls the RPC server
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*/
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#define try SetUnhandledExceptionFilter(rpcException); RPC_STATUS exception = setjmp(jmp); if (!exception)
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#define catch else
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RpcStatus rpcSendRequest(const RpcCtx handle, BYTE* KmsRequest, const size_t requestSize, BYTE **KmsResponse, size_t* responseSize)
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{
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*KmsResponse = NULL; // Let midl_user_allocate do the job
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try
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{
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exception = RequestActivation(KMSServer_v1_0_c_ifspec, (int)requestSize, KmsRequest, (int*)responseSize, KmsResponse);
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}
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catch
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{
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errorout("\n%s", win_strerror(exception));
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}
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PreviousRpcCallFailed = exception;
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SetUnhandledExceptionFilter(NULL);
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return exception;
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}
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#undef catch
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#undef try
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/*
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* Only frees local handles. Cannot close the TCP connection
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*/
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RpcStatus closeRpc(const RpcCtx handle)
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{
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RPC_STATUS status;
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if ((status = RpcBindingFree(&KMSServer_v1_0_c_ifspec)) != RPC_S_OK) return status;
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status = RpcStringFreeA(&stringBinding);
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//Ctx = INVALID_RPCCTX;
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return status;
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}
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#if !MULTI_CALL_BINARY
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// Memory allocation function for RPC.
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void *__RPC_USER midl_user_allocate(SIZE_T len)
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{
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return vlmcsd_malloc(len);
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}
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// Memory deallocation function for RPC.
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void __RPC_USER midl_user_free(void __RPC_FAR *ptr)
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{
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if (ptr) free(ptr);
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ptr = NULL;
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}
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#endif // !MULTI_CALL_BINARY
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#endif // USE_MSRPC
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