1 /* 2 * Copyright (c) 2010 The NetBSD Foundation, Inc. 3 * All rights reserved. 4 * 5 * This code is derived from software contributed to The NetBSD Foundation 6 * by Adam Hamsik. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 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 the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 18 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 19 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 20 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 27 * POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 31 #ifndef _LIB_DM_H_ 32 #define _LIB_DM_H_ 33 34 __BEGIN_DECLS 35 36 #define DM_DEVICE_PATH "/dev/mapper/control" 37 38 #define IOCTL_TYPE_IN 0x1 39 #define IOCTL_TYPE_OUT 0x2 40 41 struct libdm_task; 42 struct libdm_cmd; 43 struct libdm_target; 44 struct libdm_table; 45 struct libdm_dev; 46 struct libdm_iter; 47 48 typedef struct libdm_task* libdm_task_t; 49 typedef struct libdm_cmd* libdm_cmd_t; 50 typedef struct libdm_target* libdm_target_t; 51 typedef struct libdm_table* libdm_table_t; 52 typedef struct libdm_dev* libdm_dev_t; 53 typedef struct libdm_iter* libdm_iter_t; 54 55 struct cmd_version { 56 const char *cmd; 57 uint32_t version[3]; 58 }; 59 60 void libdm_iter_destroy(libdm_iter_t); 61 62 libdm_task_t libdm_task_create(const char *); 63 void libdm_task_destroy(libdm_task_t); 64 65 char *libdm_task_get_command(libdm_task_t); 66 int32_t libdm_task_get_cmd_version(libdm_task_t, uint32_t *, size_t); 67 68 int libdm_task_set_name(const char *, libdm_task_t); 69 char *libdm_task_get_name(libdm_task_t); 70 71 int libdm_task_set_uuid(const char *, libdm_task_t); 72 char *libdm_task_get_uuid(libdm_task_t); 73 74 int libdm_task_set_minor(uint32_t, libdm_task_t); 75 uint32_t libdm_task_get_minor(libdm_task_t); 76 77 uint32_t libdm_task_get_flags(libdm_task_t); 78 void libdm_task_set_flags(libdm_task_t, uint32_t); 79 80 void libdm_task_set_suspend_flag(libdm_task_t); 81 void libdm_task_del_suspend_flag(libdm_task_t); 82 83 void libdm_task_set_status_flag(libdm_task_t); 84 void libdm_task_del_status_flag(libdm_task_t); 85 86 void libdm_task_set_exists_flag(libdm_task_t); 87 void libdm_task_del_exists_flag(libdm_task_t); 88 89 void libdm_task_set_nocount_flag(libdm_task_t); 90 void libdm_task_del_nocount_flag(libdm_task_t); 91 92 uint32_t libdm_task_get_target_num(libdm_task_t); 93 int32_t libdm_task_get_open_num(libdm_task_t); 94 uint32_t libdm_task_get_event_num(libdm_task_t); 95 96 int libdm_task_set_cmd(libdm_cmd_t, libdm_task_t); 97 libdm_cmd_t libdm_task_get_cmd(libdm_task_t); 98 99 /* cmd_data dictionary entry manipulating functions */ 100 libdm_cmd_t libdm_cmd_create(void); 101 void libdm_cmd_destroy(libdm_cmd_t); 102 libdm_iter_t libdm_cmd_iter_create(libdm_cmd_t); 103 104 int libdm_cmd_set_table(libdm_table_t, libdm_cmd_t); 105 106 /* cmd is array of table dictionaries */ 107 libdm_table_t libdm_cmd_get_table(libdm_iter_t); 108 109 /* cmd is array of dev dictionaries */ 110 libdm_dev_t libdm_cmd_get_dev(libdm_iter_t); 111 112 /* cmd is array of target dictonaries */ 113 libdm_target_t libdm_cmd_get_target(libdm_iter_t); 114 /* cmd is array of dev_t's */ 115 uint64_t libdm_cmd_get_deps(libdm_iter_t); 116 117 /* Table functions. */ 118 libdm_table_t libdm_table_create(void); 119 void libdm_table_destroy(libdm_table_t); 120 121 int libdm_table_set_start(uint64_t, libdm_table_t); 122 uint64_t libdm_table_get_start(libdm_table_t); 123 124 int libdm_table_set_length(uint64_t, libdm_table_t); 125 uint64_t libdm_table_get_length(libdm_table_t); 126 127 int libdm_table_set_target(const char *, libdm_table_t); 128 char * libdm_table_get_target(libdm_table_t); 129 130 int libdm_table_set_params(const char *, libdm_table_t); 131 char * libdm_table_get_params(libdm_table_t); 132 133 int32_t libdm_table_get_status(libdm_table_t); 134 135 /* Target manipulating functions. */ 136 void libdm_target_destroy(libdm_target_t); 137 138 char * libdm_target_get_name(libdm_target_t); 139 int32_t libdm_target_get_version(libdm_target_t, uint32_t *, size_t); 140 141 /* Dev manipulating functions. */ 142 void libdm_dev_destroy(libdm_dev_t); 143 144 char * libdm_dev_get_name(libdm_dev_t); 145 uint32_t libdm_dev_get_minor(libdm_dev_t); 146 147 int libdm_dev_set_newname(const char *, libdm_cmd_t); 148 149 /* task run routine */ 150 int libdm_task_run(libdm_task_t); 151 152 __END_DECLS 153 154 #endif /* _LIB_DM_H_ */ 155