1 /* 2 * Copyright (c) 2009 The DragonFly Project. All rights reserved. 3 * 4 * This code is derived from software contributed to The DragonFly Project 5 * by Alex Hornung <ahornung@gmail.com> 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * 3. Neither the name of The DragonFly Project nor the names of its 18 * contributors may be used to endorse or promote products derived 19 * from this software without specific, prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 25 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 26 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING, 27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 31 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 32 * SUCH DAMAGE. 33 */ 34 #ifndef _SYS_DEVFS_RULES_H_ 35 #define _SYS_DEVFS_RULES_H_ 36 37 #include <sys/ioccom.h> 38 39 #ifndef _SYS_QUEUE_H_ 40 #include <sys/queue.h> 41 #endif 42 #ifndef _SYS_TYPES_H_ 43 #include <sys/types.h> 44 #endif 45 46 #define DEVFS_MAX_POLICY_LENGTH 32 47 48 struct devfs_rule { 49 u_long rule_type; 50 u_long rule_cmd; 51 52 char *mntpoint; 53 u_char mntpointlen; 54 55 char *name; 56 u_char namlen; 57 58 char *linkname; 59 u_char linknamlen; 60 61 62 u_long dev_type; /* Type of device to which the rule applies */ 63 u_short mode; /* files access mode and type */ 64 uid_t uid; /* owner user id */ 65 gid_t gid; /* owner group id */ 66 67 TAILQ_ENTRY(devfs_rule) link; 68 }; 69 70 struct devfs_rule_ioctl { 71 u_long rule_type; 72 u_long rule_cmd; 73 74 char mntpoint[PATH_MAX]; 75 76 char name[PATH_MAX]; 77 78 char linkname[PATH_MAX]; 79 80 u_long dev_type; /* Type of device to which the rule applies */ 81 u_short mode; /* files access mode and type */ 82 uid_t uid; /* owner user id */ 83 gid_t gid; /* owner group id */ 84 }; 85 86 #define DEVFS_RULE_NAME 0x01 87 #define DEVFS_RULE_TYPE 0x02 88 #define DEVFS_RULE_JAIL 0x04 89 90 #define DEVFS_RULE_LINK 0x01 91 #define DEVFS_RULE_HIDE 0x02 92 #define DEVFS_RULE_SHOW 0x04 93 #define DEVFS_RULE_PERM 0x08 94 95 #define DEVFS_RULE_ADD _IOWR('d', 221, struct devfs_rule_ioctl) 96 #define DEVFS_RULE_APPLY _IOWR('d', 222, struct devfs_rule_ioctl) 97 #define DEVFS_RULE_CLEAR _IOWR('d', 223, struct devfs_rule_ioctl) 98 #define DEVFS_RULE_RESET _IOWR('d', 224, struct devfs_rule_ioctl) 99 100 #if defined(_KERNEL) || defined(_KERNEL_STRUCTURES) 101 102 #ifndef _SYS_DEVFS_H_ 103 #include <sys/devfs.h> 104 #endif 105 106 TAILQ_HEAD(devfs_rule_head, devfs_rule); 107 108 109 void *devfs_rule_check_apply(struct devfs_node *, void *); 110 void *devfs_rule_reset_node(struct devfs_node *, void *); 111 #endif /* _KERNEL */ 112 #endif /* _SYS_DEVFS_RULES_H_ */ 113