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authorAndy Grover <agrover@redhat.com>2013-03-04 13:52:07 -0800
committerNicholas Bellinger <nab@linux-iscsi.org>2013-04-25 01:05:22 -0700
commit98e2eeb31e4a0cd248af6a26290d5246b28488d8 (patch)
tree94e9b586257cf781d4f05630f5a792d47d5ee7db /drivers/target
parent30f359a6f9da65a66de8cadf959f0f4a0d498bba (diff)
downloadlinux-98e2eeb31e4a0cd248af6a26290d5246b28488d8.tar.gz
target/iscsi: Remove chap_set_random()
The result from get_random_bytes should already be random, so further manipulation and mixing should not be needed. Signed-off-by: Andy Grover <agrover@redhat.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Diffstat (limited to 'drivers/target')
-rw-r--r--drivers/target/iscsi/iscsi_target_auth.c28
1 files changed, 1 insertions, 27 deletions
diff --git a/drivers/target/iscsi/iscsi_target_auth.c b/drivers/target/iscsi/iscsi_target_auth.c
index a0fc7b9eea6..cee17543278 100644
--- a/drivers/target/iscsi/iscsi_target_auth.c
+++ b/drivers/target/iscsi/iscsi_target_auth.c
@@ -49,32 +49,6 @@ static void chap_binaryhex_to_asciihex(char *dst, char *src, int src_len)
}
}
-static void chap_set_random(char *data, int length)
-{
- long r;
- unsigned n;
-
- while (length > 0) {
- get_random_bytes(&r, sizeof(long));
- r = r ^ (r >> 8);
- r = r ^ (r >> 4);
- n = r & 0x7;
-
- get_random_bytes(&r, sizeof(long));
- r = r ^ (r >> 8);
- r = r ^ (r >> 5);
- n = (n << 3) | (r & 0x7);
-
- get_random_bytes(&r, sizeof(long));
- r = r ^ (r >> 8);
- r = r ^ (r >> 5);
- n = (n << 2) | (r & 0x3);
-
- *data++ = n;
- length--;
- }
-}
-
static void chap_gen_challenge(
struct iscsi_conn *conn,
int caller,
@@ -86,7 +60,7 @@ static void chap_gen_challenge(
memset(challenge_asciihex, 0, CHAP_CHALLENGE_LENGTH * 2 + 1);
- chap_set_random(chap->challenge, CHAP_CHALLENGE_LENGTH);
+ get_random_bytes(chap->challenge, CHAP_CHALLENGE_LENGTH);
chap_binaryhex_to_asciihex(challenge_asciihex, chap->challenge,
CHAP_CHALLENGE_LENGTH);
/*