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| -rw-r--r-- | sys/sys/capability.h | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/sys/sys/capability.h b/sys/sys/capability.h new file mode 100644 index 0000000..04e7a10 --- /dev/null +++ b/sys/sys/capability.h @@ -0,0 +1,71 @@ +/*- + * Copyright (c) 2008-2010 Robert N. M. Watson + * All rights reserved. + * + * This software was developed at the University of Cambridge Computer + * Laboratory with support from a grant from Google, Inc. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * $FreeBSD$ + */ + +/* + * Definitions for FreeBSD capabilities facility. + */ +#ifndef _SYS_CAPABILITY_H_ +#define _SYS_CAPABILITY_H_ + +#include <sys/cdefs.h> +#include <sys/types.h> + +#ifdef _KERNEL + +#define IN_CAPABILITY_MODE(td) (td->td_ucred->cr_flags & CRED_FLAG_CAPMODE) + +#else /* !_KERNEL */ + +__BEGIN_DECLS + +/* + * cap_enter(): Cause the process to enter capability mode, which will + * prevent it from directly accessing global namespaces. System calls will + * be limited to process-local, process-inherited, or file descriptor + * operations. If already in capability mode, a no-op. + * + * Currently, process-inherited operations are not properly handled -- in + * particular, we're interested in things like waitpid(2), kill(2), etc, + * being properly constrained. One possible solution is to introduce process + * descriptors. + */ +int cap_enter(void); + +/* + * cap_getmode(): Are we in capability mode? + */ +int cap_getmode(u_int* modep); + +__END_DECLS + +#endif /* !_KERNEL */ + +#endif /* !_SYS_CAPABILITY_H_ */ |
