chiark / gitweb /
changelog: start 0.6.8
[secnet.git] / transform-cbcmac.c
index 0631897f2eeecf5f896fc9b48a77076880daf0ef..b481346068833c12eefdc1463b20cf489a97286d 100644 (file)
@@ -101,8 +101,8 @@ static void transform_delkey(void *sst)
     ti->keyed=False;
 }
 
-static uint32_t transform_forward(void *sst, struct buffer_if *buf,
-                                 const char **errmsg)
+static transform_apply_return transform_forward(void *sst,
+            struct buffer_if *buf, const char **errmsg)
 {
     struct transform_inst *ti=sst;
     uint8_t *padp;
@@ -172,8 +172,8 @@ static uint32_t transform_forward(void *sst, struct buffer_if *buf,
     return 0;
 }
 
-static uint32_t transform_reverse(void *sst, struct buffer_if *buf,
-                                 const char **errmsg)
+static transform_apply_return transform_reverse(void *sst,
+                struct buffer_if *buf, const char **errmsg)
 {
     struct transform_inst *ti=sst;
     uint8_t *padp;
@@ -191,7 +191,7 @@ static uint32_t transform_reverse(void *sst, struct buffer_if *buf,
 
     if (buf->size < 4 + 16 + 16) {
        *errmsg="msg too short";
-       return 1;
+       return transform_apply_err;
     }
 
     /* CBC */
@@ -203,7 +203,7 @@ static uint32_t transform_reverse(void *sst, struct buffer_if *buf,
     /* Assert bufsize is multiple of blocksize */
     if (buf->size&0xf) {
        *errmsg="msg not multiple of cipher blocksize";
-       return 1;
+       return transform_apply_err;
     }
     serpentbe_encrypt(&ti->cryptkey,iv,iv);
     for (n=buf->start; n<buf->start+buf->size; n+=16)
@@ -231,9 +231,9 @@ static uint32_t transform_reverse(void *sst, struct buffer_if *buf,
        serpentbe_encrypt(&ti->mackey,macplain,macacc);
     }
     serpentbe_encrypt(&ti->mackey,macacc,macacc);
-    if (!consttime_memeq(macexpected,macacc,16)!=0) {
+    if (!consttime_memeq(macexpected,macacc,16)) {
        *errmsg="invalid MAC";
-       return 1;
+       return transform_apply_err;
     }
 
     /* PKCS5, stolen from IWJ */
@@ -242,7 +242,7 @@ static uint32_t transform_reverse(void *sst, struct buffer_if *buf,
     padlen=*padp;
     if (!padlen || (padlen > PKCS5_MASK+1)) {
        *errmsg="pkcs5: invalid length";
-       return 1;
+       return transform_apply_err;
     }
 
     buf_unappend(buf,padlen-1);
@@ -292,13 +292,13 @@ static list_t *transform_apply(closure_t *self, struct cloc loc,
     /* First parameter must be a dict */
     item=list_elem(args,0);
     if (!item || item->type!=t_dict)
-       cfgfatal(loc,"userv-ipif","parameter must be a dictionary\n");
+       cfgfatal(loc,"serpent256-cbc","parameter must be a dictionary\n");
     
     dict=item->data.dict;
 
     SEQNUM_PARAMS_INIT(dict,&st->p,"serpent-cbc256",loc);
 
-    SET_CAPAB_TRANSFORMNUM(CAPAB_TRANSFORMNUM_SERPENT256CBC);
+    SET_CAPAB_BIT(CAPAB_BIT_SERPENT256CBC);
 
     return new_closure(&st->cl);
 }