static unsafe SecKeychainAttributeList *GetAttributeListFromKeychainItemRef(IntPtr itemRef)
{
int[] attributeTags = { (int)SecItemAttr.Account };
int[] formatConstants = { CSSM_DB_ATTRIBUTE_FORMAT_STRING };
fixed(int *tags = attributeTags, formats = formatConstants)
{
var attributeInfo = new SecKeychainAttributeInfo {
Count = 1,
Tag = tags,
Format = formats
};
uint length = 0;
IntPtr outData = IntPtr.Zero;
SecKeychainAttributeList *attributeList;
OSStatus attributeStatus = SecKeychainItemCopyAttributesAndData(itemRef, ref attributeInfo,
IntPtr.Zero, &attributeList,
ref length, ref outData);
if (attributeStatus == OSStatus.ItemNotFound)
{
throw new Exception("Could not add internet password to keychain: " + GetError(attributeStatus));
}
if (attributeStatus != OSStatus.Ok)
{
throw new Exception("Could not find internet username and password: " + GetError(attributeStatus));
}
return(attributeList);
}
}
public static extern int SecKeychainItemCopyAttributesAndData(
IntPtr itemRef,
ref SecKeychainAttributeInfo info,
IntPtr itemClass, // SecItemClass*
out IntPtr attrList, // SecKeychainAttributeList*
out uint dataLength,
IntPtr data);
private static byte[] GetAccountNameAttributeData(IntPtr itemRef)
{
IntPtr tagArrayPtr = IntPtr.Zero;
IntPtr formatArrayPtr = IntPtr.Zero;
IntPtr attrListPtr = IntPtr.Zero; // SecKeychainAttributeList
try
{
// Extract the user name by querying for the item's 'account' attribute
tagArrayPtr = Marshal.AllocCoTaskMem(sizeof(SecKeychainAttrType));
Marshal.Copy(new[] { (int)SecKeychainAttrType.AccountItem }, 0, tagArrayPtr, 1);
formatArrayPtr = Marshal.AllocCoTaskMem(sizeof(CssmDbAttributeFormat));
Marshal.Copy(new[] { (int)CssmDbAttributeFormat.String }, 0, formatArrayPtr, 1);
var attributeInfo = new SecKeychainAttributeInfo
{
Count = 1,
Tag = tagArrayPtr,
Format = formatArrayPtr,
};
ThrowOnError(
SecKeychainItemCopyAttributesAndData(
itemRef, ref attributeInfo,
IntPtr.Zero, out attrListPtr, out var _, IntPtr.Zero)
);
SecKeychainAttributeList attrList = Marshal.PtrToStructure <SecKeychainAttributeList>(attrListPtr);
Debug.Assert(attrList.Count == 1);
byte[] attrListArrayBytes = NativeMethods.ToByteArray(
attrList.Attributes, Marshal.SizeOf <SecKeychainAttribute>() * attrList.Count);
SecKeychainAttribute[] attributes = NativeMethods.ToStructArray <SecKeychainAttribute>(attrListArrayBytes);
Debug.Assert(attributes.Length == 1);
return(NativeMethods.ToByteArray(attributes[0].Data, attributes[0].Length));
}
finally
{
if (tagArrayPtr != IntPtr.Zero)
{
Marshal.FreeCoTaskMem(tagArrayPtr);
}
if (formatArrayPtr != IntPtr.Zero)
{
Marshal.FreeCoTaskMem(formatArrayPtr);
}
if (attrListPtr != IntPtr.Zero)
{
SecKeychainItemFreeAttributesAndData(attrListPtr, IntPtr.Zero);
}
}
}
private static byte[] GetAccountNameAttributeData(IntPtr itemRef)
{
IntPtr tagArrayPtr = IntPtr.Zero;
IntPtr formatArrayPtr = IntPtr.Zero;
IntPtr attrListPtr = IntPtr.Zero; // SecKeychainAttributeList
try
{
// Extract the user name by querying for the item's 'account' attribute
tagArrayPtr = Marshal.AllocHGlobal(sizeof(SecKeychainAttrType));
Marshal.WriteInt32(tagArrayPtr, (int)SecKeychainAttrType.AccountItem);
formatArrayPtr = Marshal.AllocHGlobal(sizeof(CssmDbAttributeFormat));
Marshal.WriteInt32(formatArrayPtr, (int)CssmDbAttributeFormat.String);
var attributeInfo = new SecKeychainAttributeInfo
{
Count = 1,
Tag = tagArrayPtr,
Format = formatArrayPtr,
};
ThrowIfError(
SecKeychainItemCopyAttributesAndData(
itemRef, ref attributeInfo,
IntPtr.Zero, out attrListPtr, out _, IntPtr.Zero)
);
SecKeychainAttributeList attrList = Marshal.PtrToStructure <SecKeychainAttributeList>(attrListPtr);
Debug.Assert(attrList.Count == 1, "Only expecting a list structure containing one attribute to be returned");
SecKeychainAttribute attribute = Marshal.PtrToStructure <SecKeychainAttribute>(attrList.Attributes);
return(InteropUtils.ToByteArray(attribute.Data, attribute.Length));
}
finally
{
if (tagArrayPtr != IntPtr.Zero)
{
Marshal.FreeHGlobal(tagArrayPtr);
}
if (formatArrayPtr != IntPtr.Zero)
{
Marshal.FreeHGlobal(formatArrayPtr);
}
if (attrListPtr != IntPtr.Zero)
{
SecKeychainItemFreeAttributesAndData(attrListPtr, IntPtr.Zero);
}
}
}
static unsafe string GetUsernameFromKeychainItemRef(IntPtr itemRef)
{
int[] formatConstants = { (int)CssmDbAttributeFormat.String };
int[] attributeTags = { (int)SecItemAttr.Account };
fixed(int *tags = attributeTags, formats = formatConstants)
{
var attributeInfo = new SecKeychainAttributeInfo {
Count = 1,
Tag = tags,
Format = formats
};
SecKeychainAttributeList *attributeList = null;
SecItemClass itemClass = 0;
try {
SecStatusCode status = SecKeychainItemCopyAttributesAndData(itemRef, &attributeInfo, ref itemClass, &attributeList, IntPtr.Zero, IntPtr.Zero);
if (status == SecStatusCode.ItemNotFound)
{
throw new Exception("Could not add internet password to keychain: " + status.GetStatusDescription());
}
if (status != SecStatusCode.Success)
{
throw new Exception("Could not find internet username and password: " + status.GetStatusDescription());
}
var userNameAttr = (SecKeychainAttribute *)attributeList->Attrs;
if (userNameAttr->Length == 0)
{
return(null);
}
return(Marshal.PtrToStringAuto(userNameAttr->Data, (int)userNameAttr->Length));
} finally {
SecKeychainItemFreeAttributesAndData(attributeList, IntPtr.Zero);
}
}
}
static unsafe string GetUsernameFromKeychainItemRef(IntPtr itemRef)
{
int[] formatConstants = { (int)CssmDbAttributeFormat.String };
int[] attributeTags = { (int)SecItemAttr.Account };
fixed(int *tags = attributeTags, formats = formatConstants)
{
var attributeInfo = new SecKeychainAttributeInfo {
Count = 1,
Tag = tags,
Format = formats
};
SecKeychainAttributeList *attributeList;
IntPtr outData = IntPtr.Zero;
SecItemClass itemClass = 0;
uint length = 0;
OSStatus status = SecKeychainItemCopyAttributesAndData(itemRef, &attributeInfo, ref itemClass, &attributeList, ref length, ref outData);
if (status == OSStatus.ItemNotFound)
{
throw new Exception("Could not add internet password to keychain: " + GetError(status));
}
if (status != OSStatus.Ok)
{
throw new Exception("Could not find internet username and password: " + GetError(status));
}
var userNameAttr = (SecKeychainAttribute *)attributeList->Attrs;
if (userNameAttr->Length == 0)
{
return(null);
}
return(Marshal.PtrToStringAuto(userNameAttr->Data, (int)userNameAttr->Length));
}
}
static unsafe string GetUsernameFromKeychainItemRef (IntPtr itemRef)
{
int[] formatConstants = { (int) CssmDbAttributeFormat.String };
int[] attributeTags = { (int) SecItemAttr.Account };
fixed (int* tags = attributeTags, formats = formatConstants) {
var attributeInfo = new SecKeychainAttributeInfo {
Count = 1,
Tag = tags,
Format = formats
};
SecKeychainAttributeList* attributeList;
IntPtr outData = IntPtr.Zero;
SecItemClass itemClass = 0;
uint length = 0;
OSStatus status = SecKeychainItemCopyAttributesAndData (itemRef, &attributeInfo, ref itemClass, &attributeList, ref length, ref outData);
if (status == OSStatus.ItemNotFound)
throw new Exception ("Could not add internet password to keychain: " + GetError (status));
if (status != OSStatus.Ok)
throw new Exception ("Could not find internet username and password: " + GetError (status));
var userNameAttr = (SecKeychainAttribute*) attributeList->Attrs;
if (userNameAttr->Length == 0)
return null;
return Marshal.PtrToStringAuto (userNameAttr->Data, (int) userNameAttr->Length);
}
}
static extern unsafe OSStatus SecKeychainItemCopyAttributesAndData (IntPtr itemRef, SecKeychainAttributeInfo* info, ref SecItemClass itemClass, SecKeychainAttributeList** attrList, ref uint length, ref IntPtr outData);
static extern unsafe OSStatus SecKeychainItemCopyAttributesAndData(IntPtr itemRef, ref SecKeychainAttributeInfo info,
IntPtr itemClass, SecKeychainAttributeList **attrList,
ref uint length, ref IntPtr outData);
