ipc: split into separate files per-platform

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

1 files changed, 0 insertions, 137 deletions

diff --git a/src/wincompat/ipc.c b/src/wincompat/ipc.c
deleted file mode 100644
index 86fab07..0000000
--- a/src/wincompat/ipc.c
+++ /dev/null
@@ -1,137 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * Copyright (C) 2015-2020 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
- */
-
-#include <windows.h>
-#include <tlhelp32.h>
-#include <accctrl.h>
-#include <aclapi.h>
-#include <stdio.h>
-#include <stdbool.h>
-#include <fcntl.h>
-
-static FILE *userspace_interface_file(const char *iface)
-{
-	char fname[MAX_PATH], error_message[1024 * 128] = { 0 };
-	HANDLE thread_token, process_snapshot, winlogon_process, winlogon_token, duplicated_token, pipe_handle = INVALID_HANDLE_VALUE;
-	PROCESSENTRY32 entry = { .dwSize = sizeof(PROCESSENTRY32) };
-	PSECURITY_DESCRIPTOR pipe_sd;
-	PSID pipe_sid;
-	SID expected_sid;
-	BOOL ret;
-	int fd;
-	DWORD last_error = ERROR_SUCCESS, bytes = sizeof(expected_sid);
-	TOKEN_PRIVILEGES privileges = {
-		.PrivilegeCount = 1,
-		.Privileges = {{ .Attributes = SE_PRIVILEGE_ENABLED }}
-	};
-
-	if (!LookupPrivilegeValue(NULL, SE_DEBUG_NAME, &privileges.Privileges[0].Luid))
-		goto err;
-	if (!CreateWellKnownSid(WinLocalSystemSid, NULL, &expected_sid, &bytes))
-		goto err;
-
-	process_snapshot = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
-	if (process_snapshot == INVALID_HANDLE_VALUE)
-		goto err;
-	for (ret = Process32First(process_snapshot, &entry); ret; last_error = GetLastError(), ret = Process32Next(process_snapshot, &entry)) {
-		if (strcasecmp(entry.szExeFile, "winlogon.exe"))
-			continue;
-
-		RevertToSelf();
-		if (!ImpersonateSelf(SecurityImpersonation))
-			continue;
-		if (!OpenThreadToken(GetCurrentThread(), TOKEN_ADJUST_PRIVILEGES, FALSE, &thread_token))
-			continue;
-		if (!AdjustTokenPrivileges(thread_token, FALSE, &privileges, sizeof(privileges), NULL, NULL)) {
-			last_error = GetLastError();
-			CloseHandle(thread_token);
-			continue;
-		}
-		CloseHandle(thread_token);
-
-		winlogon_process = OpenProcess(PROCESS_QUERY_INFORMATION, FALSE, entry.th32ProcessID);
-		if (!winlogon_process)
-			continue;
-		if (!OpenProcessToken(winlogon_process, TOKEN_IMPERSONATE | TOKEN_DUPLICATE, &winlogon_token))
-			continue;
-		CloseHandle(winlogon_process);
-		if (!DuplicateToken(winlogon_token, SecurityImpersonation, &duplicated_token)) {
-			last_error = GetLastError();
-			RevertToSelf();
-			continue;
-		}
-		CloseHandle(winlogon_token);
-		if (!SetThreadToken(NULL, duplicated_token)) {
-			last_error = GetLastError();
-			CloseHandle(duplicated_token);
-			continue;
-		}
-		CloseHandle(duplicated_token);
-
-		snprintf(fname, sizeof(fname), "\\\\.\\pipe\\ProtectedPrefix\\Administrators\\WireGuard\\%s", iface);
-		pipe_handle = CreateFile(fname, GENERIC_READ | GENERIC_WRITE, 0, NULL, OPEN_EXISTING, 0, NULL);
-		last_error = GetLastError();
-		if (pipe_handle == INVALID_HANDLE_VALUE)
-			continue;
-		last_error = GetSecurityInfo(pipe_handle, SE_FILE_OBJECT, OWNER_SECURITY_INFORMATION, &pipe_sid, NULL, NULL, NULL, &pipe_sd);
-		if (last_error != ERROR_SUCCESS) {
-			CloseHandle(pipe_handle);
-			continue;
-		}
-		last_error = EqualSid(&expected_sid, pipe_sid) ? ERROR_SUCCESS : ERROR_ACCESS_DENIED;
-		LocalFree(pipe_sd);
-		if (last_error != ERROR_SUCCESS) {
-			CloseHandle(pipe_handle);
-			continue;
-		}
-		last_error = ERROR_SUCCESS;
-		break;
-	}
-	RevertToSelf();
-	CloseHandle(process_snapshot);
-
-	if (last_error != ERROR_SUCCESS || pipe_handle == INVALID_HANDLE_VALUE)
-		goto err;
-	fd = _open_osfhandle((intptr_t)pipe_handle, _O_RDWR);
-	if (fd == -1) {
-		last_error = GetLastError();
-		CloseHandle(pipe_handle);
-		goto err;
-	}
-	return _fdopen(fd, "r+");
-
-err:
-	if (last_error == ERROR_SUCCESS)
-		last_error = GetLastError();
-	if (last_error == ERROR_SUCCESS)
-		last_error = ERROR_ACCESS_DENIED;
-	FormatMessage(FORMAT_MESSAGE_FROM_SYSTEM | FORMAT_MESSAGE_IGNORE_INSERTS, NULL, last_error, MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), error_message, sizeof(error_message) - 1, NULL);
-	fprintf(stderr, "Error: Unable to open IPC handle via SYSTEM impersonation: %ld: %s\n", last_error, error_message);
-	errno = EACCES;
-	return NULL;
-}
-
-static int userspace_get_wireguard_interfaces(struct string_list *list)
-{
-	static const char prefix[] = "ProtectedPrefix\\Administrators\\WireGuard\\";
-	WIN32_FIND_DATA find_data;
-	HANDLE find_handle;
-	int ret = 0;
-
-	find_handle = FindFirstFile("\\\\.\\pipe\\*", &find_data);
-	if (find_handle == INVALID_HANDLE_VALUE)
-		return -GetLastError();
-	do {
-		if (strncmp(prefix, find_data.cFileName, strlen(prefix)))
-			continue;
-		ret = string_list_add(list, find_data.cFileName + strlen(prefix));
-		if (ret < 0)
-			goto out;
-	} while (FindNextFile(find_handle, &find_data));
-
-out:
-	FindClose(find_handle);
-	return ret;
-}