linux/net/unix
Felipe Gasper cae9910e73 net: Add UNIX_DIAG_UID to Netlink UNIX socket diagnostics.
This adds the ability for Netlink to report a socket's UID along with the
other UNIX diagnostic information that is already available. This will
allow diagnostic tools greater insight into which users control which
socket.

To test this, do the following as a non-root user:

    unshare -U -r bash
    nc -l -U user.socket.$$ &

.. and verify from within that same session that Netlink UNIX socket
diagnostics report the socket's UID as 0. Also verify that Netlink UNIX
socket diagnostics report the socket's UID as the user's UID from an
unprivileged process in a different session. Verify the same from
a root process.

Signed-off-by: Felipe Gasper <felipe@felipegasper.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-05-22 10:36:35 -07:00
..
af_unix.c datagram: remove rendundant 'peeked' argument 2019-04-08 09:51:54 -07:00
diag.c net: Add UNIX_DIAG_UID to Netlink UNIX socket diagnostics. 2019-05-22 10:36:35 -07:00
garbage.c net: split out functions related to registering inflight socket files 2019-02-28 08:24:23 -07:00
Kconfig treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
Makefile net: split out functions related to registering inflight socket files 2019-02-28 08:24:23 -07:00
scm.c net: split out functions related to registering inflight socket files 2019-02-28 08:24:23 -07:00
scm.h net: split out functions related to registering inflight socket files 2019-02-28 08:24:23 -07:00
sysctl_net_unix.c