[PATCH 05/17] luks: Add support for LUKS2 in (proc)/luks_script

[development@efficientek.com]

From: Glenn Washburn <development@efficientek.com>

Signed-off-by: Glenn Washburn <development@efficientek.com>
---
 grub-core/disk/cryptodisk.c | 18 ++++++++++--------
 1 file changed, 10 insertions(+), 8 deletions(-)

diff --git a/grub-core/disk/cryptodisk.c b/grub-core/disk/cryptodisk.c
index c21be7d52..f6b6302e1 100644
--- a/grub-core/disk/cryptodisk.c
+++ b/grub-core/disk/cryptodisk.c
@@ -1210,12 +1210,14 @@ luks_script_get (grub_size_t *sz)
   *sz = 0;
 
   for (i = cryptodisk_list; i != NULL; i = i->next)
-    if (grub_strcmp (i->modname, "luks") == 0)
+    if (grub_strncmp (i->modname, "luks", 4) == 0)
       {
-	size += sizeof ("luks_mount ");
+	size += grub_strlen (i->modname);
+	size += sizeof ("_mount");
 	size += grub_strlen (i->uuid);
 	size += grub_strlen (i->cipher->cipher->name);
-	size += 54;
+	/* mode + mode_iv + spaces + offset + sector size + ??? + '\n' + NULL */
+	size += 5 + 8 + 5 + 20 + 4 + 16 + 1 + 1;
 	if (i->essiv_hash)
 	  size += grub_strlen (i->essiv_hash->name);
 	size += i->keysize * 2;
@@ -1228,16 +1230,16 @@ luks_script_get (grub_size_t *sz)
   ptr = ret;
 
   for (i = cryptodisk_list; i != NULL; i = i->next)
-    if (grub_strcmp (i->modname, "luks") == 0)
+    if (grub_strncmp (i->modname, "luks", 4) == 0)
       {
 	unsigned j;
 	const char *iptr;
-	ptr = grub_stpcpy (ptr, "luks_mount ");
+	ptr = grub_stpcpy (ptr, i->modname);
+	ptr = grub_stpcpy (ptr, "_mount ");
 	ptr = grub_stpcpy (ptr, i->uuid);
 	*ptr++ = ' ';
-	grub_snprintf (ptr, 21, "%" PRIuGRUB_UINT64_T " ", i->offset);
-	while (*ptr)
-	  ptr++;
+	ptr += grub_snprintf (ptr, 21, "%" PRIuGRUB_UINT64_T " ", i->offset);
+	ptr += grub_snprintf (ptr, 6, "%d ", 1 << i->log_sector_size);
 	for (iptr = i->cipher->cipher->name; *iptr; iptr++)
 	  *ptr++ = grub_tolower (*iptr);
 	switch (i->mode)
-- 
2.25.1