diff options
| author | elad <elad@NetBSD.org> | 2005-06-16 15:41:36 +0000 |
|---|---|---|
| committer | elad <elad@NetBSD.org> | 2005-06-16 15:41:36 +0000 |
| commit | 27cb371b940ca4c536d70bbf84fa9a077d463db9 (patch) | |
| tree | cb84dadc44b13c0aa1c0d92e3b59294d042eab57 /sys/dev/verified_exec.c | |
| parent | 68988657cdd132c7edacde5f74f167c6b97f2850 (diff) | |
Don't allow unprivileged users to open the veriexec device.
While I'm here, explicit 'int' for 'veriexec_device_usage'.
Diffstat (limited to 'sys/dev/verified_exec.c')
| -rw-r--r-- | sys/dev/verified_exec.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/sys/dev/verified_exec.c b/sys/dev/verified_exec.c index 13986842150..e89265df6da 100644 --- a/sys/dev/verified_exec.c +++ b/sys/dev/verified_exec.c @@ -1,4 +1,4 @@ -/* $NetBSD: verified_exec.c,v 1.12 2005/06/06 02:48:20 christos Exp $ */ +/* $NetBSD: verified_exec.c,v 1.13 2005/06/16 15:41:36 elad Exp $ */ /*- * Copyright 2005 Elad Efrat <elad@bsd.org.il> @@ -31,9 +31,9 @@ #include <sys/cdefs.h> #if defined(__NetBSD__) -__KERNEL_RCSID(0, "$NetBSD: verified_exec.c,v 1.12 2005/06/06 02:48:20 christos Exp $"); +__KERNEL_RCSID(0, "$NetBSD: verified_exec.c,v 1.13 2005/06/16 15:41:36 elad Exp $"); #else -__RCSID("$Id: verified_exec.c,v 1.12 2005/06/06 02:48:20 christos Exp $\n$NetBSD: verified_exec.c,v 1.12 2005/06/06 02:48:20 christos Exp $"); +__RCSID("$Id: verified_exec.c,v 1.13 2005/06/16 15:41:36 elad Exp $\n$NetBSD: verified_exec.c,v 1.13 2005/06/16 15:41:36 elad Exp $"); #endif #include <sys/param.h> @@ -64,7 +64,7 @@ __RCSID("$Id: verified_exec.c,v 1.12 2005/06/06 02:48:20 christos Exp $\n$NetBSD #include <sys/verified_exec.h> /* count of number of times device is open (we really only allow one open) */ -static unsigned veriexec_dev_usage; +static unsigned int veriexec_dev_usage; struct veriexec_softc { DEVPORT_DEVICE veriexec_dev; @@ -127,6 +127,9 @@ veriexecopen(dev_t dev __unused, int flags __unused, p->p_pid, dev); #endif + if (suser(p->p_ucred, &p->p_acflag) != 0) + return (EPERM); + if (veriexec_dev_usage > 0) { veriexec_dprintf(("Veriexec: load device already in use\n")); return(EBUSY); |
