diff options
Diffstat (limited to 'src/hci/commands/shim_cmd.c')
-rw-r--r-- | src/hci/commands/shim_cmd.c | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/src/hci/commands/shim_cmd.c b/src/hci/commands/shim_cmd.c new file mode 100644 index 000000000..1f29f4d26 --- /dev/null +++ b/src/hci/commands/shim_cmd.c @@ -0,0 +1,108 @@ +/* + * Copyright (C) 2023 Michael Brown <mbrown@fensystems.co.uk>. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of the + * License, or any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA + * 02110-1301, USA. + * + * You can also choose to distribute this program under the terms of + * the Unmodified Binary Distribution Licence (as given in the file + * COPYING.UBDL), provided that you have satisfied its requirements. + */ + +FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); + +#include <getopt.h> +#include <ipxe/command.h> +#include <ipxe/parseopt.h> +#include <ipxe/efi/efi_shim.h> +#include <usr/imgmgmt.h> +#include <usr/shimmgmt.h> + +/** @file + * + * EFI shim command + * + */ + +/** "shim" options */ +struct shim_options { + /** Keep original image */ + int keep; + /** Download timeout */ + unsigned long timeout; + /** Second stage alternative name */ + char *altname; +}; + +/** "shim" option list */ +static struct option_descriptor shim_opts[] = { + OPTION_DESC ( "keep", 'k', no_argument, + struct shim_options, keep, parse_flag ), + OPTION_DESC ( "timeout", 't', required_argument, + struct shim_options, timeout, parse_timeout ), + OPTION_DESC ( "altname", 'a', required_argument, + struct shim_options, altname, parse_string ), +}; + +/** "shim" command descriptor */ +static struct command_descriptor shim_cmd = + COMMAND_DESC ( struct shim_options, shim_opts, 0, 1, NULL ); + +/** + * The "shim" command + * + * @v argc Argument count + * @v argv Argument list + * @ret rc Return status code + */ +static int shim_exec ( int argc, char **argv ) { + struct shim_options opts; + struct image *image = NULL; + char *name_uri = NULL; + int rc; + + /* Parse options */ + if ( ( rc = parse_options ( argc, argv, &shim_cmd, &opts ) ) != 0 ) + goto err_parse; + + /* Parse name/URI string */ + name_uri = argv[optind]; + + /* Acquire image, if applicable */ + if ( name_uri && + ( rc = imgacquire ( name_uri, opts.timeout, &image ) ) != 0 ) { + goto err_acquire; + } + + /* (Un)register as shim */ + if ( ( rc = shim ( image, opts.altname ) ) != 0 ) + goto err_shim; + + /* Unregister original image unless --keep was specified */ + if ( image && ( ! opts.keep ) ) + unregister_image ( image ); + err_shim: + err_acquire: + err_parse: + return rc; +} + +/** Shim commands */ +struct command shim_commands[] __command = { + { + .name = "shim", + .exec = shim_exec, + }, +}; |