1 /*- 2 * Copyright (c) 2003 Poul-Henning Kamp 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. The names of the authors may not be used to endorse or promote 14 * products derived from this software without specific prior written 15 * permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 * 29 * $FreeBSD$ 30 */ 31 #ifndef _LIBGEOM_H_ 32 #define _LIBGEOM_H_ 33 34 #include <sys/cdefs.h> 35 36 #include <sys/queue.h> 37 #include <sys/time.h> 38 39 #include <geom/geom_ctl.h> 40 41 __BEGIN_DECLS 42 43 void geom_stats_close(void); 44 void geom_stats_resync(void); 45 int geom_stats_open(void); 46 void *geom_stats_snapshot_get(void); 47 void geom_stats_snapshot_free(void *); 48 void geom_stats_snapshot_timestamp(void *, struct timespec *); 49 void geom_stats_snapshot_reset(void *); 50 struct devstat *geom_stats_snapshot_next(void *); 51 52 char *geom_getxml(void); 53 54 /* geom_xml2tree.c */ 55 56 /* 57 * These structs are used to build the tree based on the XML. 58 * they're named as the kernel variant without the first '_'. 59 */ 60 61 struct gclass; 62 struct ggeom; 63 struct gconsumer; 64 struct gprovider; 65 66 LIST_HEAD(gconf, gconfig); 67 68 struct gident { 69 void *lg_id; 70 void *lg_ptr; 71 enum { ISCLASS, 72 ISGEOM, 73 ISPROVIDER, 74 ISCONSUMER } lg_what; 75 }; 76 77 struct gmesh { 78 LIST_HEAD(, gclass) lg_class; 79 struct gident *lg_ident; 80 }; 81 82 struct gconfig { 83 LIST_ENTRY(gconfig) lg_config; 84 char *lg_name; 85 char *lg_val; 86 }; 87 88 struct gclass { 89 void *lg_id; 90 char *lg_name; 91 LIST_ENTRY(gclass) lg_class; 92 LIST_HEAD(, ggeom) lg_geom; 93 struct gconf lg_config; 94 }; 95 96 struct ggeom { 97 void *lg_id; 98 struct gclass *lg_class; 99 char *lg_name; 100 u_int lg_rank; 101 LIST_ENTRY(ggeom) lg_geom; 102 LIST_HEAD(, gconsumer) lg_consumer; 103 LIST_HEAD(, gprovider) lg_provider; 104 struct gconf lg_config; 105 }; 106 107 struct gconsumer { 108 void *lg_id; 109 struct ggeom *lg_geom; 110 LIST_ENTRY(gconsumer) lg_consumer; 111 struct gprovider *lg_provider; 112 LIST_ENTRY(gconsumer) lg_consumers; 113 char *lg_mode; 114 struct gconf lg_config; 115 }; 116 117 struct gprovider { 118 void *lg_id; 119 char *lg_name; 120 struct ggeom *lg_geom; 121 LIST_ENTRY(gprovider) lg_provider; 122 LIST_HEAD(, gconsumer) lg_consumers; 123 char *lg_mode; 124 off_t lg_mediasize; 125 u_int lg_sectorsize; 126 struct gconf lg_config; 127 }; 128 129 struct gident * geom_lookupid(struct gmesh *, const void *); 130 int geom_xml2tree(struct gmesh *, char *); 131 int geom_gettree(struct gmesh *); 132 void geom_deletetree(struct gmesh *); 133 134 /* geom_ctl.c */ 135 136 struct gctl_req; 137 138 #ifdef _STDIO_H_ /* limit #include pollution */ 139 void gctl_dump(struct gctl_req *, FILE *); 140 #endif 141 void gctl_free(struct gctl_req *); 142 struct gctl_req *gctl_get_handle(void); 143 const char *gctl_issue(struct gctl_req *); 144 void gctl_ro_param(struct gctl_req *, const char *, int, const void *); 145 void gctl_rw_param(struct gctl_req *, const char *, int, void *); 146 147 /* geom_util.c */ 148 int g_open(const char *, int); 149 int g_close(int); 150 off_t g_mediasize(int); 151 ssize_t g_sectorsize(int); 152 int g_flush(int); 153 int g_delete(int, off_t, off_t); 154 int g_get_ident(int, char *, size_t); 155 int g_get_name(const char *, char *, size_t); 156 int g_open_by_ident(const char *, int, char *, size_t); 157 char *g_device_path(const char *); 158 char *g_providername(int); 159 160 __END_DECLS 161 162 #endif /* _LIBGEOM_H_ */ 163