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Fix couple of UUID problems

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This commit is contained in:
Vladimir 'phcoder' Serbinenko 2011-04-21 12:39:14 +02:00
parent 0c910e9626
commit 64516e9df6
1 changed files with 29 additions and 14 deletions
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41
grub-core/disk/luks.c
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@ -78,7 +78,7 @@ struct grub_luks
luks_mode_t mode; luks_mode_t mode;
unsigned long id, source_id; unsigned long id, source_id;
enum grub_disk_dev_id source_dev_id; enum grub_disk_dev_id source_dev_id;
char uuid[sizeof (((struct grub_luks_phdr *) 0)->uuid)]; char uuid[sizeof (((struct grub_luks_phdr *) 0)->uuid) + 1];
struct grub_luks *next; struct grub_luks *next;
}; };
typedef struct grub_luks *grub_luks_t; typedef struct grub_luks *grub_luks_t;
@ -152,7 +152,7 @@ luks_decrypt (grub_crypto_cipher_handle_t cipher, luks_mode_t mode,
} }
static int check_uuid, have_it; static int check_uuid, have_it;
static char *uuid; static char *search_uuid;
static grub_err_t static grub_err_t
grub_luks_scan_device_real (const char *name, grub_disk_t source) grub_luks_scan_device_real (const char *name, grub_disk_t source)
@ -172,6 +172,8 @@ grub_luks_scan_device_real (const char *name, grub_disk_t source)
const struct gcry_cipher_spec *ciph; const struct gcry_cipher_spec *ciph;
char passphrase[MAX_PASSPHRASE] = ""; char passphrase[MAX_PASSPHRASE] = "";
grub_uint8_t candidate_digest[sizeof (header.mkDigest)]; grub_uint8_t candidate_digest[sizeof (header.mkDigest)];
char uuid[sizeof (header.uuid) + 1];
char *iptr, *optr;
/* Read the LUKS header. */ /* Read the LUKS header. */
err = grub_disk_read (source, 0, 0, sizeof (header), &header); err = grub_disk_read (source, 0, 0, sizeof (header), &header);
@ -189,8 +191,20 @@ grub_luks_scan_device_real (const char *name, grub_disk_t source)
header.hashSpec[sizeof (header.hashSpec) - 1] = 0; header.hashSpec[sizeof (header.hashSpec) - 1] = 0;
header.uuid[sizeof (header.uuid) - 1] = 0; header.uuid[sizeof (header.uuid) - 1] = 0;
if (check_uuid && grub_strcmp (header.uuid, uuid) != 0) optr = uuid;
for (iptr = header.uuid; iptr < &header.uuid[ARRAY_SIZE (header.uuid)];
iptr++)
{
if (*iptr != '-')
*optr++ = *iptr;
}
*optr = 0;
if (check_uuid && grub_strcasecmp (search_uuid, uuid) != 0)
{
grub_dprintf ("luks", "%s != %s", uuid, search_uuid);
return 0; return 0;
}
ciph = grub_crypto_lookup_cipher_by_name (header.cipherName); ciph = grub_crypto_lookup_cipher_by_name (header.cipherName);
if (!ciph) if (!ciph)
@ -274,7 +288,7 @@ grub_luks_scan_device_real (const char *name, grub_disk_t source)
} }
/* Get the passphrase from the user. */ /* Get the passphrase from the user. */
grub_printf ("Enter passphrase: "); grub_printf ("Enter passphrase for %s (%s): ", name, uuid);
if (!grub_password_get (passphrase, MAX_PASSPHRASE)) if (!grub_password_get (passphrase, MAX_PASSPHRASE))
{ {
grub_crypto_cipher_close (cipher); grub_crypto_cipher_close (cipher);
@ -446,7 +460,7 @@ grub_luks_scan_device_real (const char *name, grub_disk_t source)
newdev->source_disk = NULL; newdev->source_disk = NULL;
newdev->mode = mode; newdev->mode = mode;
newdev->essiv_cipher = essiv_cipher; newdev->essiv_cipher = essiv_cipher;
grub_memcpy (newdev->uuid, header.uuid, sizeof (newdev->uuid)); grub_memcpy (newdev->uuid, uuid, sizeof (newdev->uuid));
newdev->next = luks_list; newdev->next = luks_list;
luks_list = newdev; luks_list = newdev;
n++; n++;
@ -510,7 +524,7 @@ grub_luks_open (const char *name, grub_disk_t disk)
if (grub_memcmp (name, "luksuuid/", sizeof ("luksuuid/") - 1) == 0) if (grub_memcmp (name, "luksuuid/", sizeof ("luksuuid/") - 1) == 0)
{ {
for (dev = luks_list; dev != NULL; dev = dev->next) for (dev = luks_list; dev != NULL; dev = dev->next)
if (grub_strcmp (name + sizeof ("luksuuid/") - 1, dev->uuid) == 0) if (grub_strcasecmp (name + sizeof ("luksuuid/") - 1, dev->uuid) == 0)
break; break;
} }
else else
@ -622,16 +636,20 @@ grub_cmd_luksmount (grub_extcmd_context_t ctxt, int argc, char **args)
grub_luks_t dev; grub_luks_t dev;
for (dev = luks_list; dev != NULL; dev = dev->next) for (dev = luks_list; dev != NULL; dev = dev->next)
if (grub_strcmp (dev->uuid, args[0]) == 0) if (grub_strcasecmp (dev->uuid, args[0]) == 0)
{ {
grub_dprintf ("luks", "already mounted as luks%lu\n", dev->id); grub_dprintf ("luks", "already mounted as luks%lu\n", dev->id);
return GRUB_ERR_NONE; return GRUB_ERR_NONE;
} }
check_uuid = 1; check_uuid = 1;
uuid = args[0]; search_uuid = args[0];
grub_device_iterate (&grub_luks_scan_device); grub_device_iterate (&grub_luks_scan_device);
uuid = NULL; search_uuid = NULL;
if (!have_it)
return grub_error (GRUB_ERR_BAD_ARGUMENT, "no such luks found");
return GRUB_ERR_NONE;
} }
else else
{ {
@ -640,7 +658,7 @@ grub_cmd_luksmount (grub_extcmd_context_t ctxt, int argc, char **args)
grub_luks_t dev; grub_luks_t dev;
check_uuid = 0; check_uuid = 0;
uuid = NULL; search_uuid = NULL;
disk = grub_disk_open (args[0]); disk = grub_disk_open (args[0]);
if (!disk) if (!disk)
return grub_errno; return grub_errno;
@ -659,9 +677,6 @@ grub_cmd_luksmount (grub_extcmd_context_t ctxt, int argc, char **args)
return err; return err;
} }
if (!have_it)
return grub_error (GRUB_ERR_BAD_ARGUMENT, "no such luks found");
return 0;
} }
static struct grub_disk_dev grub_luks_dev = { static struct grub_disk_dev grub_luks_dev = {