diff options
Diffstat (limited to 'util/grub-mknetdir.c')
| -rw-r--r-- | util/grub-mknetdir.c | 227 |
1 files changed, 227 insertions, 0 deletions
diff --git a/util/grub-mknetdir.c b/util/grub-mknetdir.c new file mode 100644 index 0000000..a2461cd --- /dev/null +++ b/util/grub-mknetdir.c @@ -0,0 +1,227 @@ +/* + * Copyright (C) 1999,2000,2001,2002,2003,2004,2005,2006,2007,2008,2009,2010,2013 Free Software Foundation, Inc. + * + * GRUB 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 3 of the License, or + * (at your option) any later version. + * + * GRUB 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 GRUB. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <config.h> + +#include <grub/util/install.h> +#include <grub/emu/config.h> +#include <grub/util/misc.h> + +#include <string.h> +#include <errno.h> + +#pragma GCC diagnostic ignored "-Wmissing-prototypes" +#pragma GCC diagnostic ignored "-Wmissing-declarations" +#include <argp.h> +#pragma GCC diagnostic error "-Wmissing-prototypes" +#pragma GCC diagnostic error "-Wmissing-declarations" + +static char *rootdir = NULL, *subdir = NULL; +static char *debug_image = NULL; + +enum + { + OPTION_NET_DIRECTORY = 0x301, + OPTION_SUBDIR, + OPTION_DEBUG, + OPTION_DEBUG_IMAGE + }; + +static struct argp_option options[] = { + GRUB_INSTALL_OPTIONS, + {"net-directory", OPTION_NET_DIRECTORY, N_("DIR"), + 0, N_("root directory of TFTP server"), 2}, + {"subdir", OPTION_SUBDIR, N_("DIR"), + 0, N_("relative subdirectory on network server"), 2}, + {"debug", OPTION_DEBUG, 0, OPTION_HIDDEN, 0, 2}, + {"debug-image", OPTION_DEBUG_IMAGE, N_("STRING"), OPTION_HIDDEN, 0, 2}, + {0, 0, 0, 0, 0, 0} +}; + +static error_t +argp_parser (int key, char *arg, struct argp_state *state) +{ + if (grub_install_parse (key, arg)) + return 0; + switch (key) + { + case OPTION_NET_DIRECTORY: + free (rootdir); + rootdir = xstrdup (arg); + return 0; + case OPTION_SUBDIR: + free (subdir); + subdir = xstrdup (arg); + return 0; + /* This is an undocumented feature... */ + case OPTION_DEBUG: + verbosity++; + return 0; + case OPTION_DEBUG_IMAGE: + free (debug_image); + debug_image = xstrdup (arg); + return 0; + + case ARGP_KEY_ARG: + default: + return ARGP_ERR_UNKNOWN; + } +} + + +struct argp argp = { + options, argp_parser, NULL, + "\v"N_("Prepares GRUB network boot images at net_directory/subdir " + "assuming net_directory being TFTP root."), + NULL, grub_install_help_filter, NULL +}; + +static char *base; + +static const struct +{ + const char *mkimage_target; + const char *netmodule; + const char *ext; +} targets[GRUB_INSTALL_PLATFORM_MAX] = + { + [GRUB_INSTALL_PLATFORM_I386_PC] = { "i386-pc-pxe", "pxe", ".0" }, + [GRUB_INSTALL_PLATFORM_SPARC64_IEEE1275] = { "sparc64-ieee1275-aout", "ofnet", ".img" }, + [GRUB_INSTALL_PLATFORM_I386_IEEE1275] = { "i386-ieee1275", "ofnet", ".elf" }, + [GRUB_INSTALL_PLATFORM_POWERPC_IEEE1275] = { "powerpc-ieee1275", "ofnet", ".elf" }, + [GRUB_INSTALL_PLATFORM_I386_EFI] = { "i386-efi", "efinet", ".efi" }, + [GRUB_INSTALL_PLATFORM_X86_64_EFI] = { "x86_64-efi", "efinet", ".efi" }, + [GRUB_INSTALL_PLATFORM_IA64_EFI] = { "ia64-efi", "efinet", ".efi" }, + [GRUB_INSTALL_PLATFORM_ARM_EFI] = { "arm-efi", "efinet", ".efi" }, + [GRUB_INSTALL_PLATFORM_ARM64_EFI] = { "arm64-efi", "efinet", ".efi" }, + [GRUB_INSTALL_PLATFORM_RISCV32_EFI] = { "riscv32-efi", "efinet", ".efi" }, + [GRUB_INSTALL_PLATFORM_RISCV64_EFI] = { "riscv64-efi", "efinet", ".efi" }, + }; + +static void +process_input_dir (const char *input_dir, enum grub_install_plat platform) +{ + char *platsub = grub_install_get_platform_name (platform); + char *grubdir = grub_util_path_concat (3, rootdir, subdir, platsub); + char *load_cfg = grub_util_path_concat (2, grubdir, "load.cfg"); + char *prefix; + char *output; + char *grub_cfg; + FILE *cfg; + + grub_install_copy_files (input_dir, base, platform); + grub_util_unlink (load_cfg); + + if (debug_image) + { + FILE *f = grub_util_fopen (load_cfg, "wb"); + if (!f) + grub_util_error (_("cannot open `%s': %s"), load_cfg, + strerror (errno)); + fprintf (f, "set debug='%s'\n", debug_image); + fclose (f); + } + else + { + free (load_cfg); + load_cfg = 0; + } + + prefix = xasprintf ("/%s", subdir); + if (!targets[platform].mkimage_target) + grub_util_error (_("unsupported platform %s"), platsub); + + grub_cfg = grub_util_path_concat (2, grubdir, "grub.cfg"); + cfg = grub_util_fopen (grub_cfg, "wb"); + if (!cfg) + grub_util_error (_("cannot open `%s': %s"), grub_cfg, + strerror (errno)); + fprintf (cfg, "source %s/grub.cfg", subdir); + fclose (cfg); + + grub_install_push_module (targets[platform].netmodule); + + output = grub_util_path_concat_ext (2, grubdir, "core", targets[platform].ext); + grub_install_make_image_wrap (input_dir, prefix, output, + 0, load_cfg, + targets[platform].mkimage_target, 0); + + grub_set_install_backup_ponr (); + + grub_install_pop_module (); + + /* TRANSLATORS: First %s is replaced by platform name. Second one by filename. */ + printf (_("Netboot directory for %s created. Configure your DHCP server to point to %s\n"), + platsub, output); + + free (platsub); + free (output); + free (prefix); + free (grub_cfg); + free (grubdir); +} + + +int +main (int argc, char *argv[]) +{ + const char *pkglibdir; + + grub_util_host_init (&argc, &argv); + grub_util_disable_fd_syncs (); + rootdir = xstrdup ("/srv/tftp"); + pkglibdir = grub_util_get_pkglibdir (); + + subdir = grub_util_path_concat (2, GRUB_BOOT_DIR_NAME, GRUB_DIR_NAME); + + argp_parse (&argp, argc, argv, 0, 0, 0); + + base = grub_util_path_concat (2, rootdir, subdir); + /* Create the GRUB directory if it is not present. */ + + grub_install_mkdir_p (base); + + grub_install_push_module ("tftp"); + + if (!grub_install_source_directory) + { + enum grub_install_plat plat; + + for (plat = 0; plat < GRUB_INSTALL_PLATFORM_MAX; plat++) + if (targets[plat].mkimage_target) + { + char *platdir = grub_util_path_concat (2, pkglibdir, + grub_install_get_platform_name (plat)); + + grub_util_info ("Looking for `%s'", platdir); + + if (!grub_util_is_directory (platdir)) + { + free (platdir); + continue; + } + process_input_dir (platdir, plat); + } + } + else + { + enum grub_install_plat plat; + plat = grub_install_get_target (grub_install_source_directory); + process_input_dir (grub_install_source_directory, plat); + } + return 0; +} |