203 lines
5.2 KiB
C
203 lines
5.2 KiB
C
/*
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* Copyright (C) 2010 Michael Brown <mbrown@fensystems.co.uk>.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
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* 02110-1301, USA.
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*
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* You can also choose to distribute this program under the terms of
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* the Unmodified Binary Distribution Licence (as given in the file
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* COPYING.UBDL), provided that you have satisfied its requirements.
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*/
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#include <stdio.h>
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#include <string.h>
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#include <errno.h>
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#include <getopt.h>
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#include <ipxe/command.h>
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#include <ipxe/parseopt.h>
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#include <ipxe/uri.h>
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#include <ipxe/sanboot.h>
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#include <usr/autoboot.h>
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FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL );
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/** @file
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*
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* SAN commands
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*
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*/
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/** "sanboot" options */
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struct sanboot_options {
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/** Drive number */
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unsigned int drive;
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/** Do not describe SAN device */
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int no_describe;
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/** Keep SAN device */
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int keep;
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/** Filename */
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char *filename;
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};
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/** "sanboot" option list */
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static union {
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/* "sanboot" takes all four options */
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struct option_descriptor sanboot[4];
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/* "sanhook" takes only --drive and --no-describe */
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struct option_descriptor sanhook[2];
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/* "sanunhook" takes only --drive */
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struct option_descriptor sanunhook[1];
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} opts = {
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.sanboot = {
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OPTION_DESC ( "drive", 'd', required_argument,
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struct sanboot_options, drive, parse_integer ),
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OPTION_DESC ( "no-describe", 'n', no_argument,
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struct sanboot_options, no_describe, parse_flag ),
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OPTION_DESC ( "keep", 'k', no_argument,
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struct sanboot_options, keep, parse_flag ),
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OPTION_DESC ( "filename", 'f', required_argument,
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struct sanboot_options, filename, parse_string ),
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},
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};
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/** "sanhook" command descriptor */
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static struct command_descriptor sanhook_cmd =
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COMMAND_DESC ( struct sanboot_options, opts.sanhook, 1, MAX_ARGUMENTS,
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"<root-path>" );
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/** "sanboot" command descriptor */
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static struct command_descriptor sanboot_cmd =
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COMMAND_DESC ( struct sanboot_options, opts.sanboot, 0, MAX_ARGUMENTS,
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"[<root-path>]" );
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/** "sanunhook" command descriptor */
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static struct command_descriptor sanunhook_cmd =
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COMMAND_DESC ( struct sanboot_options, opts.sanunhook, 0, 0, NULL );
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/**
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* The "sanboot", "sanhook" and "sanunhook" commands
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*
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* @v argc Argument count
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* @v argv Argument list
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* @v default_flags Default set of flags for uriboot()
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* @v no_root_path_flags Additional flags to apply if no root path is present
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* @ret rc Return status code
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*/
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static int sanboot_core_exec ( int argc, char **argv,
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struct command_descriptor *cmd,
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int default_flags, int no_root_path_flags ) {
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struct sanboot_options opts;
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struct uri *uris[argc];
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int count;
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int flags;
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int i;
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int rc;
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/* Initialise options */
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memset ( &opts, 0, sizeof ( opts ) );
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opts.drive = san_default_drive();
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/* Parse options */
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if ( ( rc = reparse_options ( argc, argv, cmd, &opts ) ) != 0 )
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goto err_parse_options;
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/* Parse root paths, if present */
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count = ( argc - optind );
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for ( i = 0 ; i < count ; i++ ) {
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uris[i] = parse_uri ( argv[ optind + i ] );
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if ( ! uris[i] ) {
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rc = -ENOMEM;
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goto err_parse_uri;
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}
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}
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/* Construct flags */
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flags = default_flags;
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if ( opts.no_describe )
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flags |= URIBOOT_NO_SAN_DESCRIBE;
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if ( opts.keep )
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flags |= URIBOOT_NO_SAN_UNHOOK;
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if ( ! count )
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flags |= no_root_path_flags;
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/* Boot from root path */
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if ( ( rc = uriboot ( NULL, uris, count, opts.drive, opts.filename,
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flags ) ) != 0 )
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goto err_uriboot;
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err_uriboot:
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i = count;
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err_parse_uri:
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for ( i-- ; i >= 0 ; i-- )
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uri_put ( uris[i] );
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err_parse_options:
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return rc;
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}
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/**
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* The "sanhook" command
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*
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* @v argc Argument count
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* @v argv Argument list
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* @ret rc Return status code
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*/
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static int sanhook_exec ( int argc, char **argv ) {
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return sanboot_core_exec ( argc, argv, &sanhook_cmd,
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( URIBOOT_NO_SAN_BOOT |
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URIBOOT_NO_SAN_UNHOOK ), 0 );
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}
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/**
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* The "sanboot" command
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*
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* @v argc Argument count
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* @v argv Argument list
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* @ret rc Return status code
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*/
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static int sanboot_exec ( int argc, char **argv ) {
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return sanboot_core_exec ( argc, argv, &sanboot_cmd,
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0, URIBOOT_NO_SAN_UNHOOK );
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}
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/**
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* The "sanunhook" command
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*
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* @v argc Argument count
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* @v argv Argument list
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* @ret rc Return status code
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*/
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static int sanunhook_exec ( int argc, char **argv ) {
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return sanboot_core_exec ( argc, argv, &sanunhook_cmd,
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( URIBOOT_NO_SAN_DESCRIBE |
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URIBOOT_NO_SAN_BOOT ), 0 );
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}
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/** SAN commands */
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struct command sanboot_commands[] __command = {
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{
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.name = "sanhook",
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.exec = sanhook_exec,
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},
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{
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.name = "sanboot",
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.exec = sanboot_exec,
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},
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{
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.name = "sanunhook",
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.exec = sanunhook_exec,
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},
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};
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