76 lines
1.7 KiB
C
76 lines
1.7 KiB
C
#include <stdint.h>
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#include <string.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <errno.h>
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#include <ipxe/iscsi.h>
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#include <ipxe/netdevice.h>
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#include <ipxe/ibft.h>
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#include <ipxe/sanboot.h>
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#include <int13.h>
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FILE_LICENCE ( GPL2_OR_LATER );
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static int iscsiboot ( const char *root_path ) {
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struct scsi_device *scsi;
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struct int13_drive *drive;
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int rc;
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scsi = zalloc ( sizeof ( *scsi ) );
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if ( ! scsi ) {
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rc = -ENOMEM;
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goto err_alloc_scsi;
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}
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drive = zalloc ( sizeof ( *drive ) );
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if ( ! drive ) {
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rc = -ENOMEM;
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goto err_alloc_drive;
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}
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if ( ( rc = iscsi_attach ( scsi, root_path ) ) != 0 ) {
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printf ( "Could not attach iSCSI device: %s\n",
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strerror ( rc ) );
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goto err_attach;
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}
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if ( ( rc = init_scsidev ( scsi ) ) != 0 ) {
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printf ( "Could not initialise iSCSI device: %s\n",
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strerror ( rc ) );
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goto err_init;
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}
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drive->blockdev = &scsi->blockdev;
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/* FIXME: ugly, ugly hack */
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struct net_device *netdev = last_opened_netdev();
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struct iscsi_session *iscsi =
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container_of ( scsi->backend, struct iscsi_session, refcnt );
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ibft_fill_data ( netdev, iscsi );
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register_int13_drive ( drive );
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printf ( "Registered as BIOS drive %#02x\n", drive->drive );
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printf ( "Booting from BIOS drive %#02x\n", drive->drive );
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rc = int13_boot ( drive->drive );
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printf ( "Boot failed\n" );
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/* Leave drive registered, if instructed to do so */
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if ( keep_san() )
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return rc;
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printf ( "Unregistering BIOS drive %#02x\n", drive->drive );
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unregister_int13_drive ( drive );
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err_init:
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iscsi_detach ( scsi );
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err_attach:
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free ( drive );
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err_alloc_drive:
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free ( scsi );
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err_alloc_scsi:
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return rc;
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}
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struct sanboot_protocol iscsi_sanboot_protocol __sanboot_protocol = {
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.prefix = "iscsi:",
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.boot = iscsiboot,
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};
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