lkml.org 
[lkml]   [2007]   [Aug]   [28]   [last100]   RSS Feed
Views: [more markup]  [less markup]  [headers]  [forward] 
 
Messages in this thread
/
SubjectRe: [TOMOYO 15/15] LSM expansion for TOMOYO Linux.
FromTetsuo Handa <>
DateTue, 28 Aug 2007 19:39:13 +0900
Hello.

Paul Moore wrote:
> >    * post_recv_datagram is added in skb_recv_datagram.
>
> Can you explain to me why this is not possible using the existing 
> security_socket_sock_rcv_skb() LSM hook?

socket_sock_rcv_skb() is a hook for enqueue time.
I want a hook for dequeue time, because what TOMOYO Linux is doing is
not "whether a socket created by foo is permitted to pick up
an incoming packet from specific address/port"
but "whether bar is permitted to pick up
an incoming packet from specific address/port".
At the time of enqueue, I can't know who will pick up that packet.

Same reason for socket_post_accept(). What TOMOYO Linux is doing is
not "whether a socket created by foo is permitted to accept
a connection request from specific address/port"
but "whether bar is permitted to accept
a connection request from specific address/port".
At the time of enqueue, I can't know who will pick up that request.
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2007-08-28 12:41    [from the cache]
©2003-2008