URL that links to file permission management page?

Hi experts,

I have a customized list view for a document library, I would like to add a hypelink column, so in each row of a file, user can click on the link and go to the permission management page for this file. My question is how to get the URL of the permission page for each single file? Seems need to use user.aspx plus some parameters?

Update:

seems this works: user.aspx?Obj=<List Id>,<file Id in the list>,LISTITEM

not sure if this is the right way though..

Thanks,

Michael