X-Git-Url: http://www.chiark.greenend.org.uk/ucgi/~ian/git?a=blobdiff_plain;f=transform.c;h=289b02e57e899611d0fc96880dfad435b36fc5be;hb=f15aefe4e0bb264fc1ceac17c7bbe1a534d190c9;hp=f55aa447dfd41c1c64c3dfc6b658010057b77d55;hpb=20138876b39edc6b9bbcc79789c5aa1a684d3312;p=secnet.git

diff --git a/transform.c b/transform.c
index f55aa44..289b02e 100644
--- a/transform.c
+++ b/transform.c
@@ -68,6 +68,13 @@ static bool_t transform_setkey(void *sst, uint8_t *key, int32_t keylen)
     return True;
 }
 
+static bool_t transform_valid(void *sst)
+{
+    struct transform_inst *ti=sst;
+
+    return ti->keyed;
+}
+
 static void transform_delkey(void *sst)
 {
     struct transform_inst *ti=sst;
@@ -247,7 +254,7 @@ static uint32_t transform_reverse(void *sst, struct buffer_if *buf,
     } else {
 	/* Too much skew */
 	*errmsg="seqnum: too much skew";
-	return 1;
+	return 2;
     }
     
     return 0;
@@ -271,6 +278,7 @@ static struct transform_inst_if *transform_create(void *sst)
 
     ti->ops.st=ti;
     ti->ops.setkey=transform_setkey;
+    ti->ops.valid=transform_valid;
     ti->ops.delkey=transform_delkey;
     ti->ops.forwards=transform_forward;
     ti->ops.reverse=transform_reverse;