/** * Execute El Torito image * * @v image El Torito image * @ret rc Return status code */ static int eltorito_exec ( struct image *image ) { struct ramdisk ramdisk; struct int13_drive int13_drive; unsigned int load_segment = image->priv.ul; unsigned int load_offset = ( load_segment ? 0 : 0x7c00 ); int rc; memset ( &ramdisk, 0, sizeof ( ramdisk ) ); init_ramdisk ( &ramdisk, image->data, image->len, ISO9660_BLKSIZE ); memset ( &int13_drive, 0, sizeof ( int13_drive ) ); int13_drive.blockdev = &ramdisk.blockdev; register_int13_drive ( &int13_drive ); if ( ( rc = call_bootsector ( load_segment, load_offset, int13_drive.drive ) ) != 0 ) { DBGC ( image, "ElTorito %p boot failed: %s\n", image, strerror ( rc ) ); goto err; } rc = -ECANCELED; /* -EIMPOSSIBLE */ err: unregister_int13_drive ( &int13_drive ); return rc; }
static int aoeboot ( const char *root_path ) { struct ata_device ata; struct int13_drive drive; int rc; memset ( &ata, 0, sizeof ( ata ) ); memset ( &drive, 0, sizeof ( drive ) ); printf ( "AoE booting from %s\n", root_path ); /* FIXME: ugly, ugly hack */ struct net_device *netdev = last_opened_netdev(); if ( ( rc = aoe_attach ( &ata, netdev, root_path ) ) != 0 ) { printf ( "Could not attach AoE device: %s\n", strerror ( rc ) ); goto error_attach; } if ( ( rc = init_atadev ( &ata ) ) != 0 ) { printf ( "Could not initialise AoE device: %s\n", strerror ( rc ) ); goto error_init; } /* FIXME: ugly, ugly hack */ struct aoe_session *aoe = container_of ( ata.backend, struct aoe_session, refcnt ); abft_fill_data ( aoe ); drive.blockdev = &ata.blockdev; 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: aoe_detach ( &ata ); error_attach: return rc; }
static int iscsiboot ( const char *root_path ) { struct scsi_device *scsi; struct int13_drive *drive; int keep_san; int rc; scsi = zalloc ( sizeof ( *scsi ) ); if ( ! scsi ) { rc = -ENOMEM; goto err_alloc_scsi; } drive = zalloc ( sizeof ( *drive ) ); if ( ! drive ) { rc = -ENOMEM; goto err_alloc_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 err_attach; } if ( ( rc = init_scsidev ( scsi ) ) != 0 ) { printf ( "Could not initialise iSCSI device: %s\n", strerror ( rc ) ); goto err_init; } drive->blockdev = &scsi->blockdev; /* FIXME: ugly, ugly hack */ struct net_device *netdev = last_opened_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" ); /* Leave drive registered, if instructed to do so */ keep_san = fetch_intz_setting ( NULL, &keep_san_setting ); if ( keep_san ) { printf ( "Preserving connection to SAN disk\n" ); shutdown_exit_flags |= SHUTDOWN_KEEP_DEVICES; return rc; } printf ( "Unregistering BIOS drive %#02x\n", drive->drive ); unregister_int13_drive ( drive ); err_init: iscsi_detach ( scsi ); err_attach: free ( drive ); err_alloc_drive: free ( scsi ); err_alloc_scsi: return rc; }