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-rw-r--r--grub-core/commands/legacycfg.c912
1 files changed, 912 insertions, 0 deletions
diff --git a/grub-core/commands/legacycfg.c b/grub-core/commands/legacycfg.c
new file mode 100644
index 0000000..cc5971f
--- /dev/null
+++ b/grub-core/commands/legacycfg.c
@@ -0,0 +1,912 @@
+/*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 2000, 2001, 2010 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 <grub/types.h>
+#include <grub/misc.h>
+#include <grub/command.h>
+#include <grub/mm.h>
+#include <grub/err.h>
+#include <grub/dl.h>
+#include <grub/file.h>
+#include <grub/normal.h>
+#include <grub/script_sh.h>
+#include <grub/i18n.h>
+#include <grub/term.h>
+#include <grub/legacy_parse.h>
+#include <grub/crypto.h>
+#include <grub/auth.h>
+#include <grub/disk.h>
+#include <grub/partition.h>
+#include <grub/safemath.h>
+
+GRUB_MOD_LICENSE ("GPLv3+");
+
+/* Helper for legacy_file. */
+static grub_err_t
+legacy_file_getline (char **line, int cont __attribute__ ((unused)),
+ void *data __attribute__ ((unused)))
+{
+ *line = 0;
+ return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+legacy_file (const char *filename)
+{
+ grub_file_t file;
+ char *entryname = NULL, *entrysrc = NULL;
+ grub_menu_t menu;
+ char *suffix = grub_strdup ("");
+
+ if (!suffix)
+ return grub_errno;
+
+ file = grub_file_open (filename, GRUB_FILE_TYPE_CONFIG);
+ if (! file)
+ {
+ grub_free (suffix);
+ return grub_errno;
+ }
+
+ menu = grub_env_get_menu ();
+ if (! menu)
+ {
+ menu = grub_zalloc (sizeof (*menu));
+ if (! menu)
+ {
+ grub_free (suffix);
+ return grub_errno;
+ }
+
+ grub_env_set_menu (menu);
+ }
+
+ while (1)
+ {
+ char *buf = grub_file_getline (file);
+ char *parsed = NULL;
+
+ if (!buf && grub_errno)
+ {
+ grub_file_close (file);
+ grub_free (suffix);
+ return grub_errno;
+ }
+
+ if (!buf)
+ break;
+
+ {
+ char *oldname = NULL;
+ char *newsuffix;
+ char *ptr;
+
+ for (ptr = buf; *ptr && grub_isspace (*ptr); ptr++);
+
+ oldname = entryname;
+ parsed = grub_legacy_parse (ptr, &entryname, &newsuffix);
+ grub_free (buf);
+ buf = NULL;
+ if (newsuffix)
+ {
+ char *t;
+ grub_size_t sz;
+
+ if (grub_add (grub_strlen (suffix), grub_strlen (newsuffix), &sz) ||
+ grub_add (sz, 1, &sz))
+ {
+ grub_errno = GRUB_ERR_OUT_OF_RANGE;
+ goto fail_0;
+ }
+
+ t = suffix;
+ suffix = grub_realloc (suffix, sz);
+ if (!suffix)
+ {
+ grub_free (t);
+
+ fail_0:
+ grub_free (entrysrc);
+ grub_free (parsed);
+ grub_free (newsuffix);
+ grub_free (suffix);
+ return grub_errno;
+ }
+ grub_memcpy (suffix + grub_strlen (suffix), newsuffix,
+ grub_strlen (newsuffix) + 1);
+ grub_free (newsuffix);
+ newsuffix = NULL;
+ }
+ if (oldname != entryname && oldname)
+ {
+ const char **args = grub_malloc (sizeof (args[0]));
+ if (!args)
+ {
+ grub_file_close (file);
+ return grub_errno;
+ }
+ args[0] = oldname;
+ grub_normal_add_menu_entry (1, args, NULL, NULL, "legacy",
+ NULL, NULL,
+ entrysrc, 0);
+ grub_free (args);
+ entrysrc[0] = 0;
+ grub_free (oldname);
+ }
+ }
+
+ if (parsed && !entryname)
+ {
+ grub_normal_parse_line (parsed, legacy_file_getline, NULL);
+ grub_print_error ();
+ grub_free (parsed);
+ parsed = NULL;
+ }
+ else if (parsed)
+ {
+ if (!entrysrc)
+ entrysrc = parsed;
+ else
+ {
+ char *t;
+ grub_size_t sz;
+
+ if (grub_add (grub_strlen (entrysrc), grub_strlen (parsed), &sz) ||
+ grub_add (sz, 1, &sz))
+ {
+ grub_errno = GRUB_ERR_OUT_OF_RANGE;
+ goto fail_1;
+ }
+
+ t = entrysrc;
+ entrysrc = grub_realloc (entrysrc, sz);
+ if (!entrysrc)
+ {
+ grub_free (t);
+
+ fail_1:
+ grub_free (parsed);
+ grub_free (suffix);
+ return grub_errno;
+ }
+ grub_memcpy (entrysrc + grub_strlen (entrysrc), parsed,
+ grub_strlen (parsed) + 1);
+ grub_free (parsed);
+ parsed = NULL;
+ }
+ }
+ }
+ grub_file_close (file);
+
+ if (entryname)
+ {
+ const char **args = grub_malloc (sizeof (args[0]));
+ if (!args)
+ {
+ grub_file_close (file);
+ grub_free (suffix);
+ grub_free (entrysrc);
+ return grub_errno;
+ }
+ args[0] = entryname;
+ grub_normal_add_menu_entry (1, args, NULL, NULL, NULL,
+ NULL, NULL, entrysrc, 0);
+ grub_free (args);
+ }
+
+ grub_normal_parse_line (suffix, legacy_file_getline, NULL);
+ grub_print_error ();
+ grub_free (suffix);
+ grub_free (entrysrc);
+
+ return GRUB_ERR_NONE;
+}
+
+static grub_err_t
+grub_cmd_legacy_source (struct grub_command *cmd,
+ int argc, char **args)
+{
+ int new_env, extractor;
+ grub_err_t ret;
+
+ if (argc != 1)
+ return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
+
+ extractor = (cmd->name[0] == 'e');
+ new_env = (cmd->name[extractor ? (sizeof ("extract_legacy_entries_") - 1)
+ : (sizeof ("legacy_") - 1)] == 'c');
+
+ if (new_env)
+ grub_cls ();
+
+ if (new_env && !extractor)
+ grub_env_context_open ();
+ if (extractor)
+ grub_env_extractor_open (!new_env);
+
+ ret = legacy_file (args[0]);
+
+ if (new_env)
+ {
+ grub_menu_t menu;
+ menu = grub_env_get_menu ();
+ if (menu && menu->size)
+ grub_show_menu (menu, 1, 0);
+ if (!extractor)
+ grub_env_context_close ();
+ }
+ if (extractor)
+ grub_env_extractor_close (!new_env);
+
+ return ret;
+}
+
+static enum
+ {
+ GUESS_IT, LINUX, MULTIBOOT, KFREEBSD, KNETBSD, KOPENBSD
+ } kernel_type;
+
+static grub_err_t
+grub_cmd_legacy_kernel (struct grub_command *mycmd __attribute__ ((unused)),
+ int argc, char **args)
+{
+ int i;
+#ifdef TODO
+ int no_mem_option = 0;
+#endif
+ struct grub_command *cmd;
+ char **cutargs;
+ int cutargc;
+ grub_err_t err = GRUB_ERR_NONE;
+
+ for (i = 0; i < 2; i++)
+ {
+ /* FIXME: really support this. */
+ if (argc >= 1 && grub_strcmp (args[0], "--no-mem-option") == 0)
+ {
+#ifdef TODO
+ no_mem_option = 1;
+#endif
+ argc--;
+ args++;
+ continue;
+ }
+
+ /* linux16 handles both zImages and bzImages. */
+ if (argc >= 1 && (grub_strcmp (args[0], "--type=linux") == 0
+ || grub_strcmp (args[0], "--type=biglinux") == 0))
+ {
+ kernel_type = LINUX;
+ argc--;
+ args++;
+ continue;
+ }
+
+ if (argc >= 1 && grub_strcmp (args[0], "--type=multiboot") == 0)
+ {
+ kernel_type = MULTIBOOT;
+ argc--;
+ args++;
+ continue;
+ }
+
+ if (argc >= 1 && grub_strcmp (args[0], "--type=freebsd") == 0)
+ {
+ kernel_type = KFREEBSD;
+ argc--;
+ args++;
+ continue;
+ }
+
+ if (argc >= 1 && grub_strcmp (args[0], "--type=openbsd") == 0)
+ {
+ kernel_type = KOPENBSD;
+ argc--;
+ args++;
+ continue;
+ }
+
+ if (argc >= 1 && grub_strcmp (args[0], "--type=netbsd") == 0)
+ {
+ kernel_type = KNETBSD;
+ argc--;
+ args++;
+ continue;
+ }
+ }
+
+ if (argc < 2)
+ return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected"));
+
+ cutargs = grub_calloc (argc - 1, sizeof (cutargs[0]));
+ if (!cutargs)
+ return grub_errno;
+ cutargc = argc - 1;
+ grub_memcpy (cutargs + 1, args + 2, sizeof (cutargs[0]) * (argc - 2));
+ cutargs[0] = args[0];
+
+ do
+ {
+ /* First try Linux. */
+ if (kernel_type == GUESS_IT || kernel_type == LINUX)
+ {
+#ifdef GRUB_MACHINE_PCBIOS
+ cmd = grub_command_find ("linux16");
+#else
+ cmd = grub_command_find ("linux");
+#endif
+ if (cmd)
+ {
+ if (!(cmd->func) (cmd, cutargc, cutargs))
+ {
+ kernel_type = LINUX;
+ goto out;
+ }
+ }
+ grub_errno = GRUB_ERR_NONE;
+ }
+
+ /* Then multiboot. */
+ if (kernel_type == GUESS_IT || kernel_type == MULTIBOOT)
+ {
+ cmd = grub_command_find ("multiboot");
+ if (cmd)
+ {
+ if (!(cmd->func) (cmd, argc, args))
+ {
+ kernel_type = MULTIBOOT;
+ goto out;
+ }
+ }
+ grub_errno = GRUB_ERR_NONE;
+ }
+
+ {
+ int bsd_device = -1;
+ int bsd_slice = -1;
+ int bsd_part = -1;
+ {
+ grub_device_t dev;
+ const char *hdbiasstr;
+ int hdbias = 0;
+ hdbiasstr = grub_env_get ("legacy_hdbias");
+ if (hdbiasstr)
+ {
+ hdbias = grub_strtoul (hdbiasstr, 0, 0);
+ grub_errno = GRUB_ERR_NONE;
+ }
+ dev = grub_device_open (0);
+ if (dev && dev->disk
+ && dev->disk->dev->id == GRUB_DISK_DEVICE_BIOSDISK_ID
+ && dev->disk->id >= 0x80 && dev->disk->id <= 0x90)
+ {
+ struct grub_partition *part = dev->disk->partition;
+ bsd_device = dev->disk->id - 0x80 - hdbias;
+ if (part && (grub_strcmp (part->partmap->name, "netbsd") == 0
+ || grub_strcmp (part->partmap->name, "openbsd") == 0
+ || grub_strcmp (part->partmap->name, "bsd") == 0))
+ {
+ bsd_part = part->number;
+ part = part->parent;
+ }
+ if (part && grub_strcmp (part->partmap->name, "msdos") == 0)
+ bsd_slice = part->number;
+ }
+ if (dev)
+ grub_device_close (dev);
+ }
+
+ /* k*BSD didn't really work well with grub-legacy. */
+ if (kernel_type == GUESS_IT || kernel_type == KFREEBSD)
+ {
+ char buf[sizeof("adXXXXXXXXXXXXsXXXXXXXXXXXXYYY")];
+ if (bsd_device != -1)
+ {
+ if (bsd_slice != -1 && bsd_part != -1)
+ grub_snprintf(buf, sizeof(buf), "ad%ds%d%c", bsd_device,
+ bsd_slice, 'a' + bsd_part);
+ else if (bsd_slice != -1)
+ grub_snprintf(buf, sizeof(buf), "ad%ds%d", bsd_device,
+ bsd_slice);
+ else
+ grub_snprintf(buf, sizeof(buf), "ad%d", bsd_device);
+ grub_env_set ("kFreeBSD.vfs.root.mountfrom", buf);
+ }
+ else
+ grub_env_unset ("kFreeBSD.vfs.root.mountfrom");
+ cmd = grub_command_find ("kfreebsd");
+ if (cmd)
+ {
+ if (!(cmd->func) (cmd, cutargc, cutargs))
+ {
+ kernel_type = KFREEBSD;
+ goto out;
+ }
+ }
+ grub_errno = GRUB_ERR_NONE;
+ }
+ {
+ char **bsdargs;
+ int bsdargc;
+ char bsddevname[sizeof ("wdXXXXXXXXXXXXY")];
+ int found = 0;
+
+ if (bsd_device == -1)
+ {
+ bsdargs = cutargs;
+ bsdargc = cutargc;
+ }
+ else
+ {
+ char rbuf[3] = "-r";
+ bsdargc = cutargc + 2;
+ bsdargs = grub_calloc (bsdargc, sizeof (bsdargs[0]));
+ if (!bsdargs)
+ {
+ err = grub_errno;
+ goto out;
+ }
+ grub_memcpy (bsdargs, args, argc * sizeof (bsdargs[0]));
+ bsdargs[argc] = rbuf;
+ bsdargs[argc + 1] = bsddevname;
+ grub_snprintf (bsddevname, sizeof (bsddevname),
+ "wd%d%c", bsd_device,
+ bsd_part != -1 ? bsd_part + 'a' : 'c');
+ }
+ if (kernel_type == GUESS_IT || kernel_type == KNETBSD)
+ {
+ cmd = grub_command_find ("knetbsd");
+ if (cmd)
+ {
+ if (!(cmd->func) (cmd, bsdargc, bsdargs))
+ {
+ kernel_type = KNETBSD;
+ found = 1;
+ goto free_bsdargs;
+ }
+ }
+ grub_errno = GRUB_ERR_NONE;
+ }
+ if (kernel_type == GUESS_IT || kernel_type == KOPENBSD)
+ {
+ cmd = grub_command_find ("kopenbsd");
+ if (cmd)
+ {
+ if (!(cmd->func) (cmd, bsdargc, bsdargs))
+ {
+ kernel_type = KOPENBSD;
+ found = 1;
+ goto free_bsdargs;
+ }
+ }
+ grub_errno = GRUB_ERR_NONE;
+ }
+
+free_bsdargs:
+ if (bsdargs != cutargs)
+ grub_free (bsdargs);
+ if (found)
+ goto out;
+ }
+ }
+ }
+ while (0);
+
+ err = grub_error (GRUB_ERR_BAD_OS, "couldn't load file %s",
+ args[0]);
+out:
+ grub_free (cutargs);
+ return err;
+}
+
+static grub_err_t
+grub_cmd_legacy_initrd (struct grub_command *mycmd __attribute__ ((unused)),
+ int argc, char **args)
+{
+ struct grub_command *cmd;
+
+ if (kernel_type == LINUX)
+ {
+#ifdef GRUB_MACHINE_PCBIOS
+ cmd = grub_command_find ("initrd16");
+#else
+ cmd = grub_command_find ("initrd");
+#endif
+ if (!cmd)
+ return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("can't find command `%s'"),
+#ifdef GRUB_MACHINE_PCBIOS
+ "initrd16"
+#else
+ "initrd"
+#endif
+ );
+
+ return cmd->func (cmd, argc ? 1 : 0, args);
+ }
+ if (kernel_type == MULTIBOOT)
+ {
+ cmd = grub_command_find ("module");
+ if (!cmd)
+ return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("can't find command `%s'"),
+ "module");
+
+ return cmd->func (cmd, argc, args);
+ }
+
+ return grub_error (GRUB_ERR_BAD_ARGUMENT,
+ N_("you need to load the kernel first"));
+}
+
+static grub_err_t
+grub_cmd_legacy_initrdnounzip (struct grub_command *mycmd __attribute__ ((unused)),
+ int argc, char **args)
+{
+ struct grub_command *cmd;
+
+ if (kernel_type == LINUX)
+ {
+ cmd = grub_command_find ("initrd16");
+ if (!cmd)
+ return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("can't find command `%s'"),
+ "initrd16");
+
+ return cmd->func (cmd, argc, args);
+ }
+ if (kernel_type == MULTIBOOT)
+ {
+ char **newargs;
+ grub_err_t err;
+ char nounzipbuf[10] = "--nounzip";
+
+ cmd = grub_command_find ("module");
+ if (!cmd)
+ return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("can't find command `%s'"),
+ "module");
+
+ newargs = grub_calloc (argc + 1, sizeof (newargs[0]));
+ if (!newargs)
+ return grub_errno;
+ grub_memcpy (newargs + 1, args, argc * sizeof (newargs[0]));
+ newargs[0] = nounzipbuf;
+
+ err = cmd->func (cmd, argc + 1, newargs);
+ grub_free (newargs);
+ return err;
+ }
+
+ return grub_error (GRUB_ERR_BAD_ARGUMENT,
+ N_("you need to load the kernel first"));
+}
+
+static grub_err_t
+check_password_deny (const char *user __attribute__ ((unused)),
+ const char *entered __attribute__ ((unused)),
+ void *password __attribute__ ((unused)))
+{
+ return GRUB_ACCESS_DENIED;
+}
+
+#define MD5_HASHLEN 16
+
+struct legacy_md5_password
+{
+ grub_uint8_t *salt;
+ int saltlen;
+ grub_uint8_t hash[MD5_HASHLEN];
+};
+
+static int
+check_password_md5_real (const char *entered,
+ struct legacy_md5_password *pw)
+{
+ grub_size_t enteredlen = grub_strlen (entered);
+ unsigned char alt_result[MD5_HASHLEN];
+ unsigned char *digest;
+ grub_uint8_t *ctx;
+ grub_size_t i;
+ int ret;
+
+ ctx = grub_zalloc (GRUB_MD_MD5->contextsize);
+ if (!ctx)
+ return 0;
+
+ GRUB_MD_MD5->init (ctx);
+ GRUB_MD_MD5->write (ctx, entered, enteredlen);
+ GRUB_MD_MD5->write (ctx, pw->salt + 3, pw->saltlen - 3);
+ GRUB_MD_MD5->write (ctx, entered, enteredlen);
+ digest = GRUB_MD_MD5->read (ctx);
+ GRUB_MD_MD5->final (ctx);
+ grub_memcpy (alt_result, digest, MD5_HASHLEN);
+
+ GRUB_MD_MD5->init (ctx);
+ GRUB_MD_MD5->write (ctx, entered, enteredlen);
+ GRUB_MD_MD5->write (ctx, pw->salt, pw->saltlen); /* include the $1$ header */
+ for (i = enteredlen; i > 16; i -= 16)
+ GRUB_MD_MD5->write (ctx, alt_result, 16);
+ GRUB_MD_MD5->write (ctx, alt_result, i);
+
+ for (i = enteredlen; i > 0; i >>= 1)
+ GRUB_MD_MD5->write (ctx, entered + ((i & 1) ? enteredlen : 0), 1);
+ digest = GRUB_MD_MD5->read (ctx);
+ GRUB_MD_MD5->final (ctx);
+
+ for (i = 0; i < 1000; i++)
+ {
+ grub_memcpy (alt_result, digest, 16);
+
+ GRUB_MD_MD5->init (ctx);
+ if ((i & 1) != 0)
+ GRUB_MD_MD5->write (ctx, entered, enteredlen);
+ else
+ GRUB_MD_MD5->write (ctx, alt_result, 16);
+
+ if (i % 3 != 0)
+ GRUB_MD_MD5->write (ctx, pw->salt + 3, pw->saltlen - 3);
+
+ if (i % 7 != 0)
+ GRUB_MD_MD5->write (ctx, entered, enteredlen);
+
+ if ((i & 1) != 0)
+ GRUB_MD_MD5->write (ctx, alt_result, 16);
+ else
+ GRUB_MD_MD5->write (ctx, entered, enteredlen);
+ digest = GRUB_MD_MD5->read (ctx);
+ GRUB_MD_MD5->final (ctx);
+ }
+
+ ret = (grub_crypto_memcmp (digest, pw->hash, MD5_HASHLEN) == 0);
+ grub_free (ctx);
+ return ret;
+}
+
+static grub_err_t
+check_password_md5 (const char *user,
+ const char *entered,
+ void *password)
+{
+ if (!check_password_md5_real (entered, password))
+ return GRUB_ACCESS_DENIED;
+
+ grub_auth_authenticate (user);
+
+ return GRUB_ERR_NONE;
+}
+
+static inline int
+ib64t (char c)
+{
+ if (c == '.')
+ return 0;
+ if (c == '/')
+ return 1;
+ if (c >= '0' && c <= '9')
+ return c - '0' + 2;
+ if (c >= 'A' && c <= 'Z')
+ return c - 'A' + 12;
+ if (c >= 'a' && c <= 'z')
+ return c - 'a' + 38;
+ return -1;
+}
+
+static struct legacy_md5_password *
+parse_legacy_md5 (int argc, char **args)
+{
+ const char *salt, *saltend;
+ struct legacy_md5_password *pw = NULL;
+ int i;
+ const char *p;
+
+ if (grub_memcmp (args[0], "--md5", sizeof ("--md5")) != 0)
+ goto fail;
+ if (argc == 1)
+ goto fail;
+ if (grub_strlen(args[1]) <= 3)
+ goto fail;
+ salt = args[1];
+ saltend = grub_strchr (salt + 3, '$');
+ if (!saltend)
+ goto fail;
+ pw = grub_malloc (sizeof (*pw));
+ if (!pw)
+ goto fail;
+
+ p = saltend + 1;
+ for (i = 0; i < 5; i++)
+ {
+ int n;
+ grub_uint32_t w = 0;
+
+ for (n = 0; n < 4; n++)
+ {
+ int ww = ib64t(*p++);
+ if (ww == -1)
+ goto fail;
+ w |= ww << (n * 6);
+ }
+ pw->hash[i == 4 ? 5 : 12+i] = w & 0xff;
+ pw->hash[6+i] = (w >> 8) & 0xff;
+ pw->hash[i] = (w >> 16) & 0xff;
+ }
+ {
+ int n;
+ grub_uint32_t w = 0;
+ for (n = 0; n < 2; n++)
+ {
+ int ww = ib64t(*p++);
+ if (ww == -1)
+ goto fail;
+ w |= ww << (6 * n);
+ }
+ if (w >= 0x100)
+ goto fail;
+ pw->hash[11] = w;
+ }
+
+ pw->saltlen = saltend - salt;
+ pw->salt = (grub_uint8_t *) grub_strndup (salt, pw->saltlen);
+ if (!pw->salt)
+ goto fail;
+
+ return pw;
+
+ fail:
+ grub_free (pw);
+ return NULL;
+}
+
+static grub_err_t
+grub_cmd_legacy_password (struct grub_command *mycmd __attribute__ ((unused)),
+ int argc, char **args)
+{
+ struct legacy_md5_password *pw = NULL;
+
+ if (argc == 0)
+ return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("one argument expected"));
+ if (args[0][0] != '-' || args[0][1] != '-')
+ return grub_normal_set_password ("legacy", args[0]);
+
+ pw = parse_legacy_md5 (argc, args);
+
+ if (pw)
+ return grub_auth_register_authentication ("legacy", check_password_md5, pw);
+ else
+ /* This is to imitate minor difference between grub-legacy in GRUB2.
+ If 2 password commands are executed in a row and second one fails
+ on GRUB2 the password of first one is used, whereas in grub-legacy
+ authenthication is denied. In case of no password command was executed
+ early both versions deny any access. */
+ return grub_auth_register_authentication ("legacy", check_password_deny,
+ NULL);
+}
+
+int
+grub_legacy_check_md5_password (int argc, char **args,
+ char *entered)
+{
+ struct legacy_md5_password *pw = NULL;
+ int ret;
+
+ if (args[0][0] != '-' || args[0][1] != '-')
+ {
+ char correct[GRUB_AUTH_MAX_PASSLEN];
+
+ grub_memset (correct, 0, sizeof (correct));
+ grub_strncpy (correct, args[0], sizeof (correct));
+
+ return grub_crypto_memcmp (entered, correct, GRUB_AUTH_MAX_PASSLEN) == 0;
+ }
+
+ pw = parse_legacy_md5 (argc, args);
+
+ if (!pw)
+ return 0;
+
+ ret = check_password_md5_real (entered, pw);
+ grub_free (pw);
+ return ret;
+}
+
+static grub_err_t
+grub_cmd_legacy_check_password (struct grub_command *mycmd __attribute__ ((unused)),
+ int argc, char **args)
+{
+ char entered[GRUB_AUTH_MAX_PASSLEN];
+
+ if (argc == 0)
+ return grub_error (GRUB_ERR_BAD_ARGUMENT, N_("one argument expected"));
+ grub_puts_ (N_("Enter password: "));
+ if (!grub_password_get (entered, GRUB_AUTH_MAX_PASSLEN))
+ return GRUB_ACCESS_DENIED;
+
+ if (!grub_legacy_check_md5_password (argc, args,
+ entered))
+ return GRUB_ACCESS_DENIED;
+
+ return GRUB_ERR_NONE;
+}
+
+static grub_command_t cmd_source, cmd_configfile;
+static grub_command_t cmd_source_extract, cmd_configfile_extract;
+static grub_command_t cmd_kernel, cmd_initrd, cmd_initrdnounzip;
+static grub_command_t cmd_password, cmd_check_password;
+
+GRUB_MOD_INIT(legacycfg)
+{
+ cmd_source
+ = grub_register_command ("legacy_source",
+ grub_cmd_legacy_source,
+ N_("FILE"),
+ /* TRANSLATORS: "legacy config" means
+ "config as used by grub-legacy". */
+ N_("Parse legacy config in same context"));
+ cmd_configfile
+ = grub_register_command ("legacy_configfile",
+ grub_cmd_legacy_source,
+ N_("FILE"),
+ N_("Parse legacy config in new context"));
+ cmd_source_extract
+ = grub_register_command ("extract_legacy_entries_source",
+ grub_cmd_legacy_source,
+ N_("FILE"),
+ N_("Parse legacy config in same context taking only menu entries"));
+ cmd_configfile_extract
+ = grub_register_command ("extract_legacy_entries_configfile",
+ grub_cmd_legacy_source,
+ N_("FILE"),
+ N_("Parse legacy config in new context taking only menu entries"));
+
+ cmd_kernel = grub_register_command ("legacy_kernel",
+ grub_cmd_legacy_kernel,
+ N_("[--no-mem-option] [--type=TYPE] FILE [ARG ...]"),
+ N_("Simulate grub-legacy `kernel' command"));
+
+ cmd_initrd = grub_register_command ("legacy_initrd",
+ grub_cmd_legacy_initrd,
+ N_("FILE [ARG ...]"),
+ N_("Simulate grub-legacy `initrd' command"));
+ cmd_initrdnounzip = grub_register_command ("legacy_initrd_nounzip",
+ grub_cmd_legacy_initrdnounzip,
+ N_("FILE [ARG ...]"),
+ N_("Simulate grub-legacy `modulenounzip' command"));
+
+ cmd_password = grub_register_command ("legacy_password",
+ grub_cmd_legacy_password,
+ N_("[--md5] PASSWD [FILE]"),
+ N_("Simulate grub-legacy `password' command"));
+
+ cmd_check_password = grub_register_command ("legacy_check_password",
+ grub_cmd_legacy_check_password,
+ N_("[--md5] PASSWD [FILE]"),
+ N_("Simulate grub-legacy `password' command in menu entry mode"));
+
+}
+
+GRUB_MOD_FINI(legacycfg)
+{
+ grub_unregister_command (cmd_source);
+ grub_unregister_command (cmd_configfile);
+ grub_unregister_command (cmd_source_extract);
+ grub_unregister_command (cmd_configfile_extract);
+
+ grub_unregister_command (cmd_kernel);
+ grub_unregister_command (cmd_initrd);
+ grub_unregister_command (cmd_initrdnounzip);
+
+ grub_unregister_command (cmd_password);
+ grub_unregister_command (cmd_check_password);
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-05 00:54:15 +0000