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#include <stdint.h>
#include <string.h>
#include <stdio.h>
#include <gpxe/iscsi.h>
#include <gpxe/settings.h>
#include <gpxe/netdevice.h>
#include <gpxe/ibft.h>
#include <int13.h>
#include <usr/iscsiboot.h>
/**
* Guess boot network device
*
* @ret netdev Boot network device
*/
static struct net_device * guess_boot_netdev ( void ) {
struct net_device *boot_netdev;
/* Just use the first network device */
for_each_netdev ( boot_netdev ) {
return boot_netdev;
}
return NULL;
}
int iscsiboot ( const char *root_path ) {
struct scsi_device scsi;
struct int13_drive drive;
int rc;
memset ( &scsi, 0, sizeof ( scsi ) );
memset ( &drive, 0, sizeof ( drive ) );
printf ( "iSCSI booting from %s\n", root_path );
if ( ( rc = iscsi_attach ( &scsi, root_path ) ) != 0 ) {
printf ( "Could not attach iSCSI device: %s\n",
strerror ( rc ) );
goto error_attach;
}
if ( ( rc = init_scsidev ( &scsi ) ) != 0 ) {
printf ( "Could not initialise iSCSI device: %s\n",
strerror ( rc ) );
goto error_init;
}
drive.blockdev = &scsi.blockdev;
/* FIXME: ugly, ugly hack */
struct net_device *netdev = guess_boot_netdev();
struct iscsi_session *iscsi =
container_of ( scsi.backend, struct iscsi_session, refcnt );
ibft_fill_data ( netdev, iscsi );
register_int13_drive ( &drive );
printf ( "Registered as BIOS drive %#02x\n", drive.drive );
printf ( "Booting from BIOS drive %#02x\n", drive.drive );
rc = int13_boot ( drive.drive );
printf ( "Boot failed\n" );
printf ( "Unregistering BIOS drive %#02x\n", drive.drive );
unregister_int13_drive ( &drive );
error_init:
iscsi_detach ( &scsi );
error_attach:
return rc;
}
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