Re: getting the application path in VnodeScopeListener
Re: getting the application path in VnodeScopeListener
- Subject: Re: getting the application path in VnodeScopeListener
- From: Terry Lambert <email@hidden>
- Date: Wed, 12 Oct 2005 19:33:55 -0700
vfs_context_pid(), which is exported in BSDKernel.exports, will tell
you the pid.
proc_name(), which is exported in BSDKernel.exports, will convert the
pid into a name and copy it into a buffer you supply and give a
length for.
This won't necessarily be the application path if the application was
launched via finder; it might also be a volfs path, so it should not
be relied on as a credential for authorization or authentication
purposes or for the granting of some other type of trust, if you are
trying to establish a security association.
Note that you should not use file I/O in the kernel, either, so if
you are intending to use this information to get a bundle ID from
which to optain some other file path and read it in the kernel -
don't do that.
-- Terry
On Oct 12, 2005, at 3:39 PM, Ben wrote:
I am doing some work in the kauth KPI and I need to get the
application path (of the application performing the action causing
this function to get called) from within VnodeScopeListener.
I think this will be available because VnodeScopeListener gets
passed in a vfs_context_t for the application in question, however
most of the accessor functions for this opaque object are
undocumented, so my hope is someone can point me to which one to
use to obtain a vnode from the vfs_context_t, which I can then get
a path from, or some other way of getting the path.
I am okay if the path cannot be obtained all of the time, just some
of the time (I'm aware of the issues of trying to use paths, so I'm
not relying on them, but when they are there they do make things
easier)
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