1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
|
From 0939fef502c4b97d1facc7972a54d5dfeba4ab71 Mon Sep 17 00:00:00 2001
From: John Lane <john@lane.uk.net>
Date: Fri, 26 Jun 2015 22:48:03 +0100
Subject: [PATCH 5/7] Cryptomount support for hyphens in UUID
---
grub-core/disk/cryptodisk.c | 20 +++++++++++++++++---
grub-core/disk/luks.c | 26 ++++++++------------------
include/grub/cryptodisk.h | 2 ++
3 files changed, 27 insertions(+), 21 deletions(-)
diff --git a/grub-core/disk/cryptodisk.c b/grub-core/disk/cryptodisk.c
index 7f656f75c..c442d3a34 100644
--- a/grub-core/disk/cryptodisk.c
+++ b/grub-core/disk/cryptodisk.c
@@ -114,6 +114,20 @@ gf_mul_be (grub_uint8_t *o, const grub_uint8_t *a, const grub_uint8_t *b)
}
}
+int
+grub_cryptodisk_uuidcmp(char *uuid_a, char *uuid_b)
+{
+ while ((*uuid_a != '\0') && (*uuid_b != '\0'))
+ {
+ while (*uuid_a == '-') uuid_a++;
+ while (*uuid_b == '-') uuid_b++;
+ if (grub_toupper(*uuid_a) != grub_toupper(*uuid_b)) break;
+ uuid_a++;
+ uuid_b++;
+ }
+ return (*uuid_a == '\0') && (*uuid_b == '\0');
+}
+
static gcry_err_code_t
grub_crypto_pcbc_decrypt (grub_crypto_cipher_handle_t cipher,
void *out, void *in, grub_size_t size,
@@ -509,8 +523,8 @@ grub_cryptodisk_open (const char *name, grub_disk_t disk)
if (grub_memcmp (name, "cryptouuid/", sizeof ("cryptouuid/") - 1) == 0)
{
for (dev = cryptodisk_list; dev != NULL; dev = dev->next)
- if (grub_strcasecmp (name + sizeof ("cryptouuid/") - 1, dev->uuid) == 0)
- break;
+ if (grub_cryptodisk_uuidcmp(name + sizeof ("cryptouuid/") - 1, dev->uuid))
+ break;
}
else
{
@@ -742,7 +756,7 @@ grub_cryptodisk_get_by_uuid (const char *uuid)
{
grub_cryptodisk_t dev;
for (dev = cryptodisk_list; dev != NULL; dev = dev->next)
- if (grub_strcasecmp (dev->uuid, uuid) == 0)
+ if (grub_cryptodisk_uuidcmp(dev->uuid, uuid))
return dev;
return NULL;
}
diff --git a/grub-core/disk/luks.c b/grub-core/disk/luks.c
index 4ebe21b4e..80a760670 100644
--- a/grub-core/disk/luks.c
+++ b/grub-core/disk/luks.c
@@ -127,6 +109,14 @@ configure_ciphers (grub_disk_t disk, const char *check_uuid,
ciphermode[sizeof (header.cipherMode)] = 0;
grub_memcpy (hashspec, header.hashSpec, sizeof (header.hashSpec));
hashspec[sizeof (header.hashSpec)] = 0;
+ grub_memcpy (uuid, header.uuid, sizeof (header.uuid));
+ uuid[sizeof (header.uuid)] = 0;
+
+ if ( check_uuid && ! grub_cryptodisk_uuidcmp(check_uuid, uuid))
+ {
+ grub_dprintf ("luks", "%s != %s\n", uuid, check_uuid);
+ return NULL;
+ }
newdev = grub_cryptodisk_create (disk, uuid, ciphername, ciphermode, hashspec);
diff --git a/include/grub/cryptodisk.h b/include/grub/cryptodisk.h
index bb25ab730..01c02696e 100644
--- a/include/grub/cryptodisk.h
+++ b/include/grub/cryptodisk.h
@@ -168,4 +168,6 @@ grub_cryptodisk_t grub_cryptodisk_get_by_source_disk (grub_disk_t disk);
grub_cryptodisk_t grub_cryptodisk_create (grub_disk_t disk, char *uuid,
char *ciphername, char *ciphermode, char *digest);
+int
+grub_cryptodisk_uuidcmp(char *uuid_a, char *uuid_b);
#endif
--
2.16.2
|