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[sanboot] Add "sanhook" and "sanunhook" commands

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Expose the multiple-SAN-drive capability of the iPXE core via the iPXE
command line by adding commands to hook and unhook additional drives.

Signed-off-by: Michael Brown <mcb30@ipxe.org>
This commit is contained in:
Michael Brown
2011-04-23 09:50:38 +01:00
parent 3ca5656208
commit 5d2802e403
10 changed files with 230 additions and 92 deletions
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164
src/hci/commands/sanboot_cmd.c
View File

@@ -23,6 +23,7 @@
#include <ipxe/command.h>
#include <ipxe/parseopt.h>
#include <ipxe/uri.h>
#include <ipxe/sanboot.h>
#include <usr/autoboot.h>
FILE_LICENCE ( GPL2_OR_LATER );
@@ -34,15 +35,112 @@ FILE_LICENCE ( GPL2_OR_LATER );
*/
/** "sanboot" options */
struct sanboot_options {};
struct sanboot_options {
/** Drive number */
unsigned int drive;
/** Do not describe SAN device */
int no_describe;
/** Keep SAN device */
int keep;
};
/** "sanboot" option list */
static struct option_descriptor sanboot_opts[] = {};
static struct option_descriptor sanboot_opts[] = {
OPTION_DESC ( "drive", 'd', required_argument,
struct sanboot_options, drive, parse_integer ),
OPTION_DESC ( "no-describe", 'n', no_argument,
struct sanboot_options, no_describe, parse_flag ),
OPTION_DESC ( "keep", 'k', no_argument,
struct sanboot_options, keep, parse_flag ),
};
/** "sanhook" command descriptor */
static struct command_descriptor sanhook_cmd =
COMMAND_DESC ( struct sanboot_options, sanboot_opts, 1, 1,
"[--drive <drive>] [--no-describe] <root-path>" );
/** "sanboot" command descriptor */
static struct command_descriptor sanboot_cmd =
COMMAND_DESC ( struct sanboot_options, sanboot_opts, 1, 1,
"<root-path>" );
COMMAND_DESC ( struct sanboot_options, sanboot_opts, 0, 1,
"[--drive <drive>] [--no-describe] [--keep] "
"[<root-path>]" );
/** "sanunhook" command descriptor */
static struct command_descriptor sanunhook_cmd =
COMMAND_DESC ( struct sanboot_options, sanboot_opts, 0, 0,
"[--drive <drive>]" );
/**
* The "sanboot", "sanhook" and "sanunhook" commands
*
* @v argc Argument count
* @v argv Argument list
* @v default_flags Default set of flags for uriboot()
* @v no_root_path_flags Additional flags to apply if no root path is present
* @ret rc Return status code
*/
static int sanboot_core_exec ( int argc, char **argv,
struct command_descriptor *cmd,
int default_flags, int no_root_path_flags ) {
struct sanboot_options opts;
const char *root_path;
struct uri *uri;
int flags;
int rc;
/* Initialise options */
memset ( &opts, 0, sizeof ( opts ) );
opts.drive = san_default_drive();
/* Parse options */
if ( ( rc = reparse_options ( argc, argv, cmd, &opts ) ) != 0 )
goto err_parse_options;
/* Parse root path, if present */
if ( argc > optind ) {
root_path = argv[optind];
uri = parse_uri ( root_path );
if ( ! uri ) {
rc = -ENOMEM;
goto err_parse_uri;
}
} else {
root_path = NULL;
uri = NULL;
}
/* Construct flags */
flags = default_flags;
if ( opts.no_describe )
flags |= URIBOOT_NO_SAN_DESCRIBE;
if ( opts.keep )
flags |= URIBOOT_NO_SAN_UNHOOK;
if ( ! root_path )
flags |= no_root_path_flags;
/* Boot from root path */
if ( ( rc = uriboot ( NULL, uri, opts.drive, flags ) ) != 0 )
goto err_uriboot;
err_uriboot:
uri_put ( uri );
err_parse_uri:
err_parse_options:
return rc;
}
/**
* The "sanhook" command
*
* @v argc Argument count
* @v argv Argument list
* @ret rc Return status code
*/
static int sanhook_exec ( int argc, char **argv ) {
return sanboot_core_exec ( argc, argv, &sanhook_cmd,
( URIBOOT_NO_SAN_BOOT |
URIBOOT_NO_SAN_UNHOOK ), 0 );
}
/**
* The "sanboot" command
@@ -52,39 +150,35 @@ static struct command_descriptor sanboot_cmd =
* @ret rc Return status code
*/
static int sanboot_exec ( int argc, char **argv ) {
struct sanboot_options opts;
const char *root_path;
struct uri *uri;
int rc;
return sanboot_core_exec ( argc, argv, &sanboot_cmd,
0, URIBOOT_NO_SAN_UNHOOK );
}
/* Parse options */
if ( ( rc = parse_options ( argc, argv, &sanboot_cmd, &opts ) ) != 0 )
goto err_parse_options;
/* Parse root path */
root_path = argv[optind];
uri = parse_uri ( root_path );
if ( ! uri ) {
rc = -ENOMEM;
goto err_parse_uri;
}
/* Boot from root path */
if ( ( rc = uriboot ( NULL, uri ) ) != 0 ) {
printf ( "Could not boot from %s: %s\n",
root_path, strerror ( rc ) );
goto err_uriboot;
}
err_uriboot:
uri_put ( uri );
err_parse_uri:
err_parse_options:
return rc;
/**
* The "sanunhook" command
*
* @v argc Argument count
* @v argv Argument list
* @ret rc Return status code
*/
static int sanunhook_exec ( int argc, char **argv ) {
return sanboot_core_exec ( argc, argv, &sanunhook_cmd,
( URIBOOT_NO_SAN_DESCRIBE |
URIBOOT_NO_SAN_BOOT ), 0 );
}
/** SAN commands */
struct command sanboot_command __command = {
.name = "sanboot",
.exec = sanboot_exec,
struct command sanboot_commands[] __command = {
{
.name = "sanhook",
.exec = sanhook_exec,
},
{
.name = "sanboot",
.exec = sanboot_exec,
},
{
.name = "sanunhook",
.exec = sanunhook_exec,
},
};