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/* $OpenBSD: tcfs_keytab.h,v 1.7 2002/03/14 03:16:10 millert Exp $ */
/*
* Copyright 2000 The TCFS Project at http://tcfs.dia.unisa.it/
* All rights reserved.
*
* 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.
* 3. The name of the authors may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``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 AUTHORS 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.
*/
#ifndef _TCFS_KEYTAB_H_
#define _TCFS_KEYTAB_H_
#include <sys/types.h>
struct tcfs_mount;
#define KEYTABSIZE 20
#define KEYSIZE 32
#define KEYPARTSIZE (KEYSIZE+KEYSIZE/8)
#define CLEAN 0x00
#define PID_BIT 0x01
#define UID_KEY 0x02
#define GID_KEY 0x04
#define PID_KEY (PID_BIT|UID_KEY)
#define IS_GID_NODE(np) (((np)->kn_type)&GID_KEY)
#define IS_UID_NODE(np) (((np)->kn_type)&UID_KEY)
#define IS_PID_NODE(np) ((((np)->kn_type)&PID_BIT)&&(IS_UID_NODE((np))))
#ifndef TCFS_OK
#define TCFS_OK 0
#endif
#define MAXUSRPERGRP 10
typedef struct {
unsigned char gui_flag;
uid_t gui_uid;
unsigned char gui_tcfskey[KEYPARTSIZE];
} tcfs_grp_uinfo;
#define GUI_CLEAN 0
#define GUI_SET 1
#define IS_SET_GUI(gui) ((gui).gui_flag==GUI_SET)
typedef struct _grp_data {
int gd_flag;
int gd_n;
int gd_k;
tcfs_grp_uinfo gd_part[MAXUSRPERGRP];
} tcfs_grp_data;
#define IS_CLEAN_GD(gd) ((gd)->gd_n==0)
#define IS_FULL_GD(gd) ((gd)->gd_n==MAXUSRPERGRP)
#define IS_READY_GD(gd) (((gd)->gd_n)>=((gd)->gd_k))
typedef struct _kn {
pid_t kn_pid;
uid_t kn_uid;
gid_t kn_gid;
unsigned int kn_type;
void *kn_key;
#undef kn_data
tcfs_grp_data *kn_data;
struct _kn *kn_n;
struct _kn *kn_p;
} tcfs_keytab_node;
typedef struct _kt {
unsigned int cnt;
tcfs_keytab_node* node[KEYTABSIZE];
} tcfs_keytab;
#define NIL ((tcfs_keytab_node*)0)
#ifdef _HAVE_HASH_
int _tcfs_keytab_hash(unsigned int);
#define tcfs_keytab_hash(x) _tcfs_keytab_hash((unsigned int)(x))
#else
#define tcfs_keytab_hash(u) ((u)%KEYTABSIZE)
#endif
tcfs_keytab_node *tcfs_keytab_newnode(void);
tcfs_keytab_node *tcfs_keytab_newgidnode(void);
void tcfs_keytab_dispnode(tcfs_keytab_node*);
tcfs_keytab *tcfs_keytab_init(void);
void tcfs_keytab_dispose(tcfs_keytab*);
tcfs_keytab_node *tcfs_keytab_fetch_uid(tcfs_keytab *, uid_t);
int tcfs_keytab_push_gidpart(struct tcfs_mount *,tcfs_keytab_node *,uid_t, gid_t,int,char*);
tcfs_keytab_node *tcfs_keytab_fetch_gid(tcfs_keytab *, gid_t);
tcfs_keytab_node *tcfs_keytab_fetch_pid(tcfs_keytab *, uid_t, pid_t);
int tcfs_keytab_push_uid(tcfs_keytab*, uid_t, void* );
int tcfs_keytab_push_pid(tcfs_keytab*, uid_t, pid_t, void *);
int tcfs_keytab_push_gid(struct tcfs_mount *,tcfs_keytab *, uid_t, gid_t, int, char *);
int tcfs_keytab_rm_uid(tcfs_keytab *, uid_t);
int tcfs_keytab_rm_pid(tcfs_keytab *, uid_t, pid_t);
int tcfs_keytab_rm_gidpart(tcfs_keytab_node *,uid_t, gid_t);
int tcfs_keytab_rm_gid(tcfs_keytab*, uid_t, gid_t);
int tcfs_interp(struct tcfs_mount *, tcfs_keytab_node*);
int tcfs_keytab_check_uid(tcfs_keytab *, uid_t);
int tcfs_keytab_check_pid(tcfs_keytab *, uid_t, pid_t);
int tcfs_keytab_check_gid(tcfs_keytab *, gid_t);
#endif /* _TCFS_KEYTAB_H_ */
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