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disallow non-SA LWP syscalls for SA processes. they add no value

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in this context, only headaches.
This commit is contained in:
chs 2005-11-12 02:28:31 +00:00
parent 0221acd545
commit 6c854a4076
1 changed files with 11 additions and 2 deletions
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13
sys/kern/kern_lwp.c
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@ -1,4 +1,4 @@
/* $NetBSD: kern_lwp.c,v 1.32 2005/10/05 15:46:00 yamt Exp $ */ /* $NetBSD: kern_lwp.c,v 1.33 2005/11/12 02:28:31 chs Exp $ */
/*- /*-
* Copyright (c) 2001 The NetBSD Foundation, Inc. * Copyright (c) 2001 The NetBSD Foundation, Inc.
@ -37,7 +37,7 @@
*/ */
#include <sys/cdefs.h> #include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: kern_lwp.c,v 1.32 2005/10/05 15:46:00 yamt Exp $"); __KERNEL_RCSID(0, "$NetBSD: kern_lwp.c,v 1.33 2005/11/12 02:28:31 chs Exp $");
#include "opt_multiprocessor.h" #include "opt_multiprocessor.h"
@ -82,6 +82,9 @@ sys__lwp_create(struct lwp *l, void *v, register_t *retval)
ucontext_t *newuc; ucontext_t *newuc;
int s, error; int s, error;
if (p->p_flag & P_SA)
return EINVAL;
newuc = pool_get(&lwp_uc_pool, PR_WAITOK); newuc = pool_get(&lwp_uc_pool, PR_WAITOK);
error = copyin(SCARG(uap, ucp), newuc, sizeof(*newuc)); error = copyin(SCARG(uap, ucp), newuc, sizeof(*newuc));
@ -176,6 +179,9 @@ sys__lwp_suspend(struct lwp *l, void *v, register_t *retval)
struct lwp *t; struct lwp *t;
struct lwp *t2; struct lwp *t2;
if (p->p_flag & P_SA)
return EINVAL;
target_lid = SCARG(uap, target); target_lid = SCARG(uap, target);
LIST_FOREACH(t, &p->p_lwps, l_sibling) LIST_FOREACH(t, &p->p_lwps, l_sibling)
@ -256,6 +262,9 @@ sys__lwp_continue(struct lwp *l, void *v, register_t *retval)
struct proc *p = l->l_proc; struct proc *p = l->l_proc;
struct lwp *t; struct lwp *t;
if (p->p_flag & P_SA)
return EINVAL;
target_lid = SCARG(uap, target); target_lid = SCARG(uap, target);
LIST_FOREACH(t, &p->p_lwps, l_sibling) LIST_FOREACH(t, &p->p_lwps, l_sibling)