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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2011-09-30 14:39:54 +0300
committerNicholas Bellinger <nab@linux-iscsi.org>2011-10-24 03:20:48 +0000
commitf2b56afd406b455fba339a35f43bfc4ada198073 (patch)
treef11190e11015c65d75b24ffbd8dee08db2e409e5
parenta3eedc227bfa7c9e21ef3cebe164d06a4c507a71 (diff)
iscsi-target: use native hex2bin for chap_string_to_hex
This patch converts chap_string_to_hex() to use hex2bin() instead of the internal chap_asciihex_to_binaryhex(). (nab: Fix up minor compile breakage + typo) Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: "Nicholas A. Bellinger" <nab@linux-iscsi.org> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
-rw-r--r--drivers/target/iscsi/iscsi_target_auth.c34
1 files changed, 3 insertions, 31 deletions
diff --git a/drivers/target/iscsi/iscsi_target_auth.c b/drivers/target/iscsi/iscsi_target_auth.c
index 11fd7430781..beb39469e7f 100644
--- a/drivers/target/iscsi/iscsi_target_auth.c
+++ b/drivers/target/iscsi/iscsi_target_auth.c
@@ -18,6 +18,7 @@
* GNU General Public License for more details.
******************************************************************************/
+#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/crypto.h>
#include <linux/err.h>
@@ -27,40 +28,11 @@
#include "iscsi_target_nego.h"
#include "iscsi_target_auth.h"
-static unsigned char chap_asciihex_to_binaryhex(unsigned char val[2])
-{
- unsigned char result = 0;
- /*
- * MSB
- */
- if ((val[0] >= 'a') && (val[0] <= 'f'))
- result = ((val[0] - 'a' + 10) & 0xf) << 4;
- else
- if ((val[0] >= 'A') && (val[0] <= 'F'))
- result = ((val[0] - 'A' + 10) & 0xf) << 4;
- else /* digit */
- result = ((val[0] - '0') & 0xf) << 4;
- /*
- * LSB
- */
- if ((val[1] >= 'a') && (val[1] <= 'f'))
- result |= ((val[1] - 'a' + 10) & 0xf);
- else
- if ((val[1] >= 'A') && (val[1] <= 'F'))
- result |= ((val[1] - 'A' + 10) & 0xf);
- else /* digit */
- result |= ((val[1] - '0') & 0xf);
-
- return result;
-}
-
static int chap_string_to_hex(unsigned char *dst, unsigned char *src, int len)
{
- int i, j = 0;
+ int j = DIV_ROUND_UP(len, 2);
- for (i = 0; i < len; i += 2) {
- dst[j++] = (unsigned char) chap_asciihex_to_binaryhex(&src[i]);
- }
+ hex2bin(dst, src, j);
dst[j] = '\0';
return j;