Ken Moffat wrote:
In cdrecord/cdrecord.c it includes sys/capability.h. I don't have
one of these (on a clfs box). The defines it uses are CAP_SYS_RAWIO
(in linux/capability.h), CAP_EFFECTIVE and CAP_SET (neither is
present on this box). I don't know if this will be a problem with
older headers and older (2.3) glibc.
Hi, sys/capability.h is installed from libcap and in this version of
capability.h are also defined CAP_EFFECTIVE and CAP_SET.
Maybe you want to have a look at the file, this is from a
libcap_1.10.orig patched with a
libcap_1.10-14.diff from debian.
Alessandro Alocci.
/*
* sys/capability.h
*
*
* Copyright (C) 1997 Aleph One
* Copyright (C) 1997-8 Andrew G. Morgan [EMAIL PROTECTED]
*
* defunct POSIX.1e Standard: 25.2 Capabilities sys/capability.h
*/
#ifndef _SYS_CAPABILITY_H
#define _SYS_CAPABILITY_H
#ifdef __cplusplus
extern C {
#endif
/*
* This file complements the kernel file by providing prototype
* information for the user library.
*/
#include sys/types.h
/*
* This is linux/capability.h
*
* Andrew G. Morgan [EMAIL PROTECTED]
* Alexander Kjeldaas [EMAIL PROTECTED]
* with help from Aleph1, Roland Buresund and Andrew Main.
*
* See here for the libcap library (POSIX draft compliance):
*
* ftp://linux.kernel.org/pub/linux/libs/security/linux-privs/kernel-2.2/
*/
#ifndef _LINUX_CAPABILITY_H
#define _LINUX_CAPABILITY_H
#include linux/types.h
/*#include linux/fs.h*/
/* User-level do most of the mapping between kernel and user
capabilities based on the version tag given by the kernel. The
kernel might be somewhat backwards compatible, but don't bet on
it. */
/* XXX - Note, cap_t, is defined by POSIX to be an opaque pointer to
a set of three capability sets. The transposition of 3*the
following structure to such a composite is better handled in a user
library since the draft standard requires the use of malloc/free
etc.. */
#define _LINUX_CAPABILITY_VERSION 0x19980330
typedef struct __user_cap_header_struct {
__u32 version;
int pid;
} *cap_user_header_t;
typedef struct __user_cap_data_struct {
__u32 effective;
__u32 permitted;
__u32 inheritable;
} *cap_user_data_t;
#ifdef __KERNEL__
/* #define STRICT_CAP_T_TYPECHECKS */
#ifdef STRICT_CAP_T_TYPECHECKS
typedef struct kernel_cap_struct {
__u32 cap;
} kernel_cap_t;
#else
typedef __u32 kernel_cap_t;
#endif
#define _USER_CAP_HEADER_SIZE (2*sizeof(__u32))
#define _KERNEL_CAP_T_SIZE (sizeof(kernel_cap_t))
#endif
/**
** POSIX-draft defined capabilities.
**/
/* In a system with the [_POSIX_CHOWN_RESTRICTED] option defined, this
overrides the restriction of changing file ownership and group
ownership. */
#define CAP_CHOWN0
/* Override all DAC access, including ACL execute access if
[_POSIX_ACL] is defined. Excluding DAC access covered by
CAP_LINUX_IMMUTABLE. */
#define CAP_DAC_OVERRIDE 1
/* Overrides all DAC restrictions regarding read and search on files
and directories, including ACL restrictions if [_POSIX_ACL] is
defined. Excluding DAC access covered by CAP_LINUX_IMMUTABLE. */
#define CAP_DAC_READ_SEARCH 2
/* Overrides all restrictions about allowed operations on files, where
file owner ID must be equal to the user ID, except where CAP_FSETID
is applicable. It doesn't override MAC and DAC restrictions. */
#define CAP_FOWNER 3
/* Overrides the following restrictions that the effective user ID
shall match the file owner ID when setting the S_ISUID and S_ISGID
bits on that file; that the effective group ID (or one of the
supplementary group IDs) shall match the file owner ID when setting
the S_ISGID bit on that file; that the S_ISUID and S_ISGID bits are
cleared on successful return from chown(2) (not implemented). */
#define CAP_FSETID 4
/* Used to decide between falling back on the old suser() or fsuser(). */
#define CAP_FS_MASK 0x1f
/* Overrides the restriction that the real or effective user ID of a
process sending a signal must match the real or effective user ID
of the process receiving the signal. */
#define CAP_KILL 5
/* Allows setgid(2) manipulation */
/* Allows setgroups(2) */
/* Allows forged gids on socket credentials passing. */
#define CAP_SETGID 6
/* Allows set*uid(2) manipulation (including fsuid). */
/* Allows forged pids on socket credentials passing. */
#define CAP_SETUID 7
/**
** Linux-specific capabilities
**/
/* Transfer any capability in your permitted set to any pid,
remove any capability in your permitted set from any pid */
#define CAP_SETPCAP 8
/* Allow modification of S_IMMUTABLE and S_APPEND file attributes */
#define CAP_LINUX_IMMUTABLE 9
/* Allows binding to TCP/UDP sockets below 1024 */
/* Allows binding to ATM VCIs below 32 */
#define CAP_NET_BIND_SERVICE 10
/* Allow broadcasting, listen to multicast */
#define CAP_NET_BROADCAST
