1 #include <stdint.h> 2 #include <string.h> 3 #include <stdlib.h> 4 #include <stdio.h> 5 #include <errno.h> 6 #include <gpxe/sanboot.h> 7 #include <int13.h> 8 #include <gpxe/srp.h> 9 #include <gpxe/sbft.h> 10 11 FILE_LICENCE ( GPL2_OR_LATER ); 12 13 static int ib_srpboot ( const char *root_path ) { 14 struct scsi_device *scsi; 15 struct int13_drive *drive; 16 int rc; 17 18 scsi = zalloc ( sizeof ( *scsi ) ); 19 if ( ! scsi ) { 20 rc = -ENOMEM; 21 goto err_alloc_scsi; 22 } 23 drive = zalloc ( sizeof ( *drive ) ); 24 if ( ! drive ) { 25 rc = -ENOMEM; 26 goto err_alloc_drive; 27 } 28 29 if ( ( rc = srp_attach ( scsi, root_path ) ) != 0 ) { 30 printf ( "Could not attach IB_SRP device: %s\n", 31 strerror ( rc ) ); 32 goto err_attach; 33 } 34 if ( ( rc = init_scsidev ( scsi ) ) != 0 ) { 35 printf ( "Could not initialise IB_SRP device: %s\n", 36 strerror ( rc ) ); 37 goto err_init; 38 } 39 40 drive->blockdev = &scsi->blockdev; 41 42 /* FIXME: ugly, ugly hack */ 43 struct srp_device *srp = 44 container_of ( scsi->backend, struct srp_device, refcnt ); 45 sbft_fill_data ( srp ); 46 47 register_int13_drive ( drive ); 48 printf ( "Registered as BIOS drive %#02x\n", drive->drive ); 49 printf ( "Booting from BIOS drive %#02x\n", drive->drive ); 50 rc = int13_boot ( drive->drive ); 51 printf ( "Boot failed\n" ); 52 53 /* Leave drive registered, if instructed to do so */ 54 if ( keep_san() ) 55 return rc; 56 57 printf ( "Unregistering BIOS drive %#02x\n", drive->drive ); 58 unregister_int13_drive ( drive ); 59 60 err_init: 61 srp_detach ( scsi ); 62 err_attach: 63 free ( drive ); 64 err_alloc_drive: 65 free ( scsi ); 66 err_alloc_scsi: 67 return rc; 68 } 69 70 struct sanboot_protocol ib_srp_sanboot_protocol __sanboot_protocol = { 71 .prefix = "ib_srp:", 72 .boot = ib_srpboot, 73 }; 74
