1#- 2# Copyright (c) 2006-2009 Marcel Moolenaar 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# 9# 1. Redistributions of source code must retain the above copyright 10# notice, this list of conditions and the following disclaimer. 11# 2. Redistributions in binary form must reproduce the above copyright 12# notice, this list of conditions and the following disclaimer in the 13# documentation and/or other materials provided with the distribution. 14# 15# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25# 26# $FreeBSD$ 27 28#include <sys/param.h> 29#include <sys/lock.h> 30#include <sys/malloc.h> 31#include <sys/mutex.h> 32#include <sys/sbuf.h> 33#include <sys/bus.h> 34#include <machine/bus.h> 35#include <sys/systm.h> 36#include <geom/geom.h> 37#include <geom/part/g_part.h> 38 39# The G_PART scheme interface. 40 41INTERFACE g_part; 42 43# Default implementations of methods. 44CODE { 45 static void 46 default_fullname(struct g_part_table *table, 47 struct g_part_entry *entry, struct sbuf *sb, const char *pfx) 48 { 49 char buf[32]; 50 51 sbuf_printf(sb, "%s%s", pfx, 52 G_PART_NAME(table, entry, buf, sizeof(buf))); 53 } 54 55 static int 56 default_precheck(struct g_part_table *t __unused, 57 enum g_part_ctl r __unused, struct g_part_parms *p __unused) 58 { 59 return (0); 60 } 61}; 62 63# add() - scheme specific processing for the add verb. 64METHOD int add { 65 struct g_part_table *table; 66 struct g_part_entry *entry; 67 struct g_part_parms *gpp; 68}; 69 70# bootcode() - scheme specific processing for the bootcode verb. 71METHOD int bootcode { 72 struct g_part_table *table; 73 struct g_part_parms *gpp; 74}; 75 76# create() - scheme specific processing for the create verb. 77METHOD int create { 78 struct g_part_table *table; 79 struct g_part_parms *gpp; 80}; 81 82# destroy() - scheme specific processing for the destroy verb. 83METHOD int destroy { 84 struct g_part_table *table; 85 struct g_part_parms *gpp; 86}; 87 88# dumpconf() 89METHOD void dumpconf { 90 struct g_part_table *table; 91 struct g_part_entry *entry; 92 struct sbuf *sb; 93 const char *indent; 94}; 95 96# dumpto() - return whether the partiton can be used for kernel dumps. 97METHOD int dumpto { 98 struct g_part_table *table; 99 struct g_part_entry *entry; 100}; 101 102# fullname() - write the name of the given partition entry to the sbuf. 103METHOD void fullname { 104 struct g_part_table *table; 105 struct g_part_entry *entry; 106 struct sbuf *sb; 107 const char *pfx; 108} DEFAULT default_fullname; 109 110# modify() - scheme specific processing for the modify verb. 111METHOD int modify { 112 struct g_part_table *table; 113 struct g_part_entry *entry; 114 struct g_part_parms *gpp; 115}; 116 117# name() - return the name of the given partition entry. 118# Typical names are "p1", "s0" or "c". 119METHOD const char * name { 120 struct g_part_table *table; 121 struct g_part_entry *entry; 122 char *buf; 123 size_t bufsz; 124}; 125 126# precheck() - method to allow schemes to check the parameters given 127# to the mentioned ctl request. This only applies to the requests that 128# operate on a GEOM. In other words, it does not apply to the create 129# request. 130# It is allowed (intended actually) to change the parameters according 131# to the schemes needs before they are used. Returning an error will 132# terminate the request immediately. 133METHOD int precheck { 134 struct g_part_table *table; 135 enum g_part_ctl req; 136 struct g_part_parms *gpp; 137} DEFAULT default_precheck; 138 139# probe() - probe the provider attached to the given consumer for the 140# existence of the scheme implemented by the G_PART interface handler. 141METHOD int probe { 142 struct g_part_table *table; 143 struct g_consumer *cp; 144}; 145 146# read() - read the on-disk partition table into memory. 147METHOD int read { 148 struct g_part_table *table; 149 struct g_consumer *cp; 150}; 151 152# setunset() - set or unset partition entry attributes. 153METHOD int setunset { 154 struct g_part_table *table; 155 struct g_part_entry *entry; 156 const char *attrib; 157 unsigned int set; 158}; 159 160# type() - return a string representation of the partition type. 161# Preferrably, the alias names. 162METHOD const char * type { 163 struct g_part_table *table; 164 struct g_part_entry *entry; 165 char *buf; 166 size_t bufsz; 167}; 168 169# write() - write the in-memory partition table to disk. 170METHOD int write { 171 struct g_part_table *table; 172 struct g_consumer *cp; 173}; 174