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- /*
- * Copyright (C) 2012 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 <stdint.h>
- #include <stdio.h>
- #include <getopt.h>
- #include <ipxe/image.h>
- #include <ipxe/command.h>
- #include <ipxe/parseopt.h>
- #include <usr/imgmgmt.h>
- #include <usr/imgtrust.h>
-
- /** @file
- *
- * Image trust management commands
- *
- */
-
- /** "imgtrust" options */
- struct imgtrust_options {
- /** Allow trusted images */
- int allow;
- /** Make trust requirement permanent */
- int permanent;
- };
-
- /** "imgtrust" option list */
- static struct option_descriptor imgtrust_opts[] = {
- OPTION_DESC ( "allow", 'a', no_argument,
- struct imgtrust_options, allow, parse_flag ),
- OPTION_DESC ( "permanent", 'p', no_argument,
- struct imgtrust_options, permanent, parse_flag ),
- };
-
- /** "imgtrust" command descriptor */
- static struct command_descriptor imgtrust_cmd =
- COMMAND_DESC ( struct imgtrust_options, imgtrust_opts, 0, 0, NULL );
-
- /**
- * The "imgtrust" command
- *
- * @v argc Argument count
- * @v argv Argument list
- * @ret rc Return status code
- */
- static int imgtrust_exec ( int argc, char **argv ) {
- struct imgtrust_options opts;
- int rc;
-
- /* Parse options */
- if ( ( rc = parse_options ( argc, argv, &imgtrust_cmd, &opts ) ) != 0 )
- return rc;
-
- /* Set trust requirement */
- if ( ( rc = image_set_trust ( ( ! opts.allow ),
- opts.permanent ) ) != 0 ) {
- printf ( "Could not set image trust requirement: %s\n",
- strerror ( rc ) );
- return rc;
- }
-
- return 0;
- }
-
- /** "imgverify" options */
- struct imgverify_options {
- /** Required signer common name */
- char *signer;
- /** Keep signature after verification */
- int keep;
- /** Download timeout */
- unsigned long timeout;
- };
-
- /** "imgverify" option list */
- static struct option_descriptor imgverify_opts[] = {
- OPTION_DESC ( "signer", 's', required_argument,
- struct imgverify_options, signer, parse_string ),
- OPTION_DESC ( "keep", 'k', no_argument,
- struct imgverify_options, keep, parse_flag ),
- OPTION_DESC ( "timeout", 't', required_argument,
- struct imgverify_options, timeout, parse_timeout),
- };
-
- /** "imgverify" command descriptor */
- static struct command_descriptor imgverify_cmd =
- COMMAND_DESC ( struct imgverify_options, imgverify_opts, 2, 2,
- "<uri|image> <signature uri|image>" );
-
- /**
- * The "imgverify" command
- *
- * @v argc Argument count
- * @v argv Argument list
- * @ret rc Return status code
- */
- static int imgverify_exec ( int argc, char **argv ) {
- struct imgverify_options opts;
- const char *image_name_uri;
- const char *signature_name_uri;
- struct image *image;
- struct image *signature;
- int rc;
-
- /* Parse options */
- if ( ( rc = parse_options ( argc, argv, &imgverify_cmd, &opts ) ) != 0 )
- return rc;
-
- /* Parse image name/URI string */
- image_name_uri = argv[optind];
-
- /* Parse signature name/URI string */
- signature_name_uri = argv[ optind + 1 ];
-
- /* Acquire the image */
- if ( ( rc = imgacquire ( image_name_uri, opts.timeout, &image ) ) != 0 )
- goto err_acquire_image;
-
- /* Acquire the signature image */
- if ( ( rc = imgacquire ( signature_name_uri, opts.timeout,
- &signature ) ) != 0 )
- goto err_acquire_signature;
-
- /* Verify image */
- if ( ( rc = imgverify ( image, signature, opts.signer ) ) != 0 ) {
- printf ( "Could not verify: %s\n", strerror ( rc ) );
- goto err_verify;
- }
-
- /* Success */
- rc = 0;
-
- err_verify:
- /* Discard signature unless --keep was specified */
- if ( ! opts.keep )
- unregister_image ( signature );
- err_acquire_signature:
- err_acquire_image:
- return rc;
- }
-
- /** Image trust management commands */
- struct command image_trust_commands[] __command = {
- {
- .name = "imgtrust",
- .exec = imgtrust_exec,
- },
- {
- .name = "imgverify",
- .exec = imgverify_exec,
- },
- };
-
- /* Drag in objects via command list */
- REQUIRING_SYMBOL ( image_trust_commands );
-
- /* Drag in objects typically required for signature verification */
- REQUIRE_OBJECT ( der );
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