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Bug 913953 - Part y: Remove unused AddAccessToKernelObject function; r=ehsan

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This commit is contained in:
Ms2ger 2013-09-10 09:03:36 +02:00
parent 0ed20c1289
commit d71ed8d439
2 changed files with 0 additions and 77 deletions
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70
ipc/chromium/src/base/win_util.cc
View File

@ -93,76 +93,6 @@ void GetServicePackLevel(int* major, int* minor) {
*minor = service_pack_minor;
}
bool AddAccessToKernelObject(HANDLE handle, WELL_KNOWN_SID_TYPE known_sid,
ACCESS_MASK access) {
PSECURITY_DESCRIPTOR descriptor = NULL;
PACL old_dacl = NULL;
PACL new_dacl = NULL;
if (ERROR_SUCCESS != GetSecurityInfo(handle, SE_KERNEL_OBJECT,
DACL_SECURITY_INFORMATION, NULL, NULL, &old_dacl, NULL,
&descriptor))
return false;
BYTE sid[SECURITY_MAX_SID_SIZE] = {0};
DWORD size_sid = SECURITY_MAX_SID_SIZE;
if (known_sid == WinSelfSid) {
// We hijack WinSelfSid when we want to add the current user instead of
// a known sid.
HANDLE token = NULL;
if (!OpenProcessToken(GetCurrentProcess(), TOKEN_ALL_ACCESS, &token)) {
LocalFree(descriptor);
return false;
}
DWORD size = sizeof(TOKEN_USER) + size_sid;
TOKEN_USER* token_user = reinterpret_cast<TOKEN_USER*>(new BYTE[size]);
scoped_ptr<TOKEN_USER> token_user_ptr(token_user);
BOOL ret = GetTokenInformation(token, TokenUser, token_user, size, &size);
CloseHandle(token);
if (!ret) {
LocalFree(descriptor);
return false;
}
memcpy(sid, token_user->User.Sid, size_sid);
} else {
if (!CreateWellKnownSid(known_sid , NULL, sid, &size_sid)) {
LocalFree(descriptor);
return false;
}
}
EXPLICIT_ACCESS new_access = {0};
new_access.grfAccessMode = GRANT_ACCESS;
new_access.grfAccessPermissions = access;
new_access.grfInheritance = NO_INHERITANCE;
new_access.Trustee.pMultipleTrustee = NULL;
new_access.Trustee.MultipleTrusteeOperation = NO_MULTIPLE_TRUSTEE;
new_access.Trustee.TrusteeForm = TRUSTEE_IS_SID;
new_access.Trustee.ptstrName = reinterpret_cast<LPWSTR>(&sid);
if (ERROR_SUCCESS != SetEntriesInAcl(1, &new_access, old_dacl, &new_dacl)) {
LocalFree(descriptor);
return false;
}
DWORD result = SetSecurityInfo(handle, SE_KERNEL_OBJECT,
DACL_SECURITY_INFORMATION, NULL, NULL,
new_dacl, NULL);
LocalFree(new_dacl);
LocalFree(descriptor);
if (ERROR_SUCCESS != result)
return false;
return true;
}
bool IsShiftPressed() {
return (::GetKeyState(VK_SHIFT) & 0x80) == 0x80;
}

7
ipc/chromium/src/base/win_util.h
View File

@ -35,13 +35,6 @@ WinVersion GetWinVersion();
// Returns the major and minor version of the service pack installed.
void GetServicePackLevel(int* major, int* minor);
// Adds an ACE in the DACL of the object referenced by handle. The ACE is
// granting |access| to the user |known_sid|.
// If |known_sid| is WinSelfSid, the sid of the current user will be added to
// the DACL.
bool AddAccessToKernelObject(HANDLE handle, WELL_KNOWN_SID_TYPE known_sid,
ACCESS_MASK access);
// Returns true if the shift key is currently pressed.
bool IsShiftPressed();