On Fri, 08 Jun 2007 06:23:23 +0200 Miloslav Trmac <[EMAIL PROTECTED]> wrote:
> From: Miloslav Trmac <[EMAIL PROTECTED]> > > Add TTY input auditing, used to audit system administrator's actions. > TTY input auditing works on a higher level than auditing all system > calls within the session, which would produce an overwhelming amount of > mostly useless audit events. > > Add an "audit_tty" attribute, inherited across fork (). Data read from > TTYs by process with the attribute is sent to the audit subsystem by the > kernel. The audit netlink interface is extended to allow modifying the > audit_tty attribute, and to allow sending explanatory audit events from > user-space (for example, a shell might send an event containing the > final command, after the interactive command-line editing and history > expansion is performed, which might be difficult to decipher from the > TTY input alone). > > Because the "audit_tty" attribute is inherited across fork (), it would > be set e.g. for sshd restarted within an audited session. To prevent > this, the audit_tty attribute is cleared when a process with no open TTY > file descriptors (e.g. after daemon startup) opens a TTY. > > See https://www.redhat.com/archives/linux-audit/2007-June/msg00000.html > for a more detailed rationale document for an older version of this patch. > > --- > Changes since the previous patch: > * use spin_lock_irq() for siglock > * add an is_tty() function instead of checking f_op->read from n_tty.c; > handle hung TTYs > * replace the audit_tty bit field by a whole word to avoid the risk of > incorrect locking > * move most new code from n_tty.c to a separate file > * fix coding style violations > * fix compilation with !CONFIG_AUDIT > > diff --git a/include/linux/sched.h b/include/linux/sched.h > index d58e74b..d9d734c 100644 > --- a/include/linux/sched.h > +++ b/include/linux/sched.h > @@ -506,6 +506,8 @@ struct signal_struct { > #ifdef CONFIG_TASKSTATS > struct taskstats *stats; > #endif > + unsigned audit_tty; > + struct tty_audit_buf *tty_audit_buf; > }; Can we ifdef these? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
