X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=net%2Fsched%2Fcls_basic.c;h=956915c217d6dbc8599b3fa8248eedb8914160a3;hb=1730554f253deb65fe5112c54b2f898d5318a328;hp=524b7885dc32bc77aa9e52da943efd6c2007ae92;hpb=cee63723b358e594225e812d6e14a2a0abfd5c88;p=linux-2.6

diff --git a/net/sched/cls_basic.c b/net/sched/cls_basic.c
index 524b7885dc..956915c217 100644
--- a/net/sched/cls_basic.c
+++ b/net/sched/cls_basic.c
@@ -35,7 +35,7 @@ struct basic_filter
 	struct list_head	link;
 };
 
-static struct tcf_ext_map basic_ext_map = {
+static const struct tcf_ext_map basic_ext_map = {
 	.action = TCA_BASIC_ACT,
 	.police = TCA_BASIC_POLICE
 };
@@ -129,6 +129,11 @@ static int basic_delete(struct tcf_proto *tp, unsigned long arg)
 	return -ENOENT;
 }
 
+static const struct nla_policy basic_policy[TCA_BASIC_MAX + 1] = {
+	[TCA_BASIC_CLASSID]	= { .type = NLA_U32 },
+	[TCA_BASIC_EMATCHES]	= { .type = NLA_NESTED },
+};
+
 static inline int basic_set_parms(struct tcf_proto *tp, struct basic_filter *f,
 				  unsigned long base, struct nlattr **tb,
 				  struct nlattr *est)
@@ -137,10 +142,6 @@ static inline int basic_set_parms(struct tcf_proto *tp, struct basic_filter *f,
 	struct tcf_exts e;
 	struct tcf_ematch_tree t;
 
-	if (tb[TCA_BASIC_CLASSID])
-		if (nla_len(tb[TCA_BASIC_CLASSID]) < sizeof(u32))
-			return err;
-
 	err = tcf_exts_validate(tp, tb, est, &e, &basic_ext_map);
 	if (err < 0)
 		return err;
@@ -150,7 +151,7 @@ static inline int basic_set_parms(struct tcf_proto *tp, struct basic_filter *f,
 		goto errout;
 
 	if (tb[TCA_BASIC_CLASSID]) {
-		f->res.classid = *(u32*)nla_data(tb[TCA_BASIC_CLASSID]);
+		f->res.classid = nla_get_u32(tb[TCA_BASIC_CLASSID]);
 		tcf_bind_filter(tp, &f->res, base);
 	}
 
@@ -174,7 +175,8 @@ static int basic_change(struct tcf_proto *tp, unsigned long base, u32 handle,
 	if (tca[TCA_OPTIONS] == NULL)
 		return -EINVAL;
 
-	err = nla_parse_nested(tb, TCA_BASIC_MAX, tca[TCA_OPTIONS], NULL);
+	err = nla_parse_nested(tb, TCA_BASIC_MAX, tca[TCA_OPTIONS],
+			       basic_policy);
 	if (err < 0)
 		return err;
 
@@ -246,29 +248,29 @@ static int basic_dump(struct tcf_proto *tp, unsigned long fh,
 		      struct sk_buff *skb, struct tcmsg *t)
 {
 	struct basic_filter *f = (struct basic_filter *) fh;
-	unsigned char *b = skb_tail_pointer(skb);
-	struct nlattr *nla;
+	struct nlattr *nest;
 
 	if (f == NULL)
 		return skb->len;
 
 	t->tcm_handle = f->handle;
 
-	nla = (struct nlattr *) b;
-	NLA_PUT(skb, TCA_OPTIONS, 0, NULL);
+	nest = nla_nest_start(skb, TCA_OPTIONS);
+	if (nest == NULL)
+		goto nla_put_failure;
 
 	if (f->res.classid)
-		NLA_PUT(skb, TCA_BASIC_CLASSID, sizeof(u32), &f->res.classid);
+		NLA_PUT_U32(skb, TCA_BASIC_CLASSID, f->res.classid);
 
 	if (tcf_exts_dump(skb, &f->exts, &basic_ext_map) < 0 ||
 	    tcf_em_tree_dump(skb, &f->ematches, TCA_BASIC_EMATCHES) < 0)
 		goto nla_put_failure;
 
-	nla->nla_len = skb_tail_pointer(skb) - b;
+	nla_nest_end(skb, nest);
 	return skb->len;
 
 nla_put_failure:
-	nlmsg_trim(skb, b);
+	nla_nest_cancel(skb, nest);
 	return -1;
 }