/*
 * Copyright (c) 2009 The DragonFly Project.  All rights reserved.
 *
 * This code is derived from software contributed to The DragonFly Project
 * by Alex Hornung <ahornung@gmail.com>
 *
 * 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. Neither the name of The DragonFly Project nor the names of its
 *    contributors may be used to endorse or promote products derived
 *    from this software without specific, prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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
 * COPYRIGHT HOLDERS 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.
 */

#ifndef DEVFSCTL_H
#define DEVFSCTL_H

#include <sys/queue.h>

#define iswhitespace(X) ((((X) == ' ') || ((X) == '\t'))?1:0)
#define RULE_MAX_STACK  32
#define RULES_FILE              0x01

#if 0
#define RULETAB_FILE    0x02
#define RULETAB_ALL             0x01
#define RULETAB_ONLY_BOOT       0x02
#define RULETAB_SPECIFIC        0x03
#endif

struct groupdevid {
        enum {
                isGROUP = 1,
                isNAME,
                isTYPE
        }               type;

        union {
                char            *name;
                int             devtype;
        };

        struct groupdevid **list;
        size_t  listsize;
#if 0
    struct groupdevid *next;
        TAILQ_HEAD(, groupdevid) list;
#endif
        TAILQ_ENTRY(groupdevid) link;
};

struct rule {
        enum {
                rPERM = 1,
                rLINK,
                rHIDE,
                rSHOW
        }               type;

        struct groupdevid *id;
        char            *dest;
        uid_t           uid;
        uid_t           gid;
        int             mode;
        int             jail;

        TAILQ_ENTRY(rule) link;
};

#if 0
struct rule_tab {
        const char      *mntpoint;
        const char      *rule_file;
        TAILQ_ENTRY(rule_tab) link;
};
#endif

typedef int (rule_iterate_callback_t)(struct rule *rule,
                struct groupdevid *id);
typedef int (rule_parser_t)(char **);

struct groupdevid *new_id(const char *, int);
struct groupdevid *get_id(const char *);
struct groupdevid *get_group(const char *, int);
struct rule *new_rule(int, struct groupdevid *);
void add_rule(struct rule *);
int rule_apply(void);
void dump_config(void);
int read_config(const char *, int);
void syntax_error(const char *fmt, ...) __dead2 __printflike(1, 2);
void rule_tab(void);
void delete_rules(void);
#endif