Merge branch 'for-linus' of git://brick.kernel.dk/data/git/linux-2.6-block

[powerpc.git] / net / sched / cls_fw.c

diff --git a/net/sched/cls_fw.c b/net/sched/cls_fw.c
index d41de91..e54acc6 100644 (file)
--- a/net/sched/cls_fw.c
+++ b/net/sched/cls_fw.c
@@ -50,6 +50,7 @@
 struct fw_head
 {
        struct fw_filter *ht[HTSIZE];
+       u32 mask;
 };
 
 struct fw_filter
@@ -101,7 +102,7 @@ static int fw_classify(struct sk_buff *skb, struct tcf_proto *tp,
        struct fw_filter *f;
        int r;
 #ifdef CONFIG_NETFILTER
-       u32 id = skb->nfmark;
+       u32 id = skb->nfmark & head->mask;
 #else
        u32 id = 0;
 #endif
@@ -209,7 +210,9 @@ static int
 fw_change_attrs(struct tcf_proto *tp, struct fw_filter *f,
        struct rtattr **tb, struct rtattr **tca, unsigned long base)
 {
+       struct fw_head *head = (struct fw_head *)tp->root;
        struct tcf_exts e;
+       u32 mask;
        int err;
 
        err = tcf_exts_validate(tp, tb, tca[TCA_RATE-1], &e, &fw_ext_map);
@@ -232,6 +235,15 @@ fw_change_attrs(struct tcf_proto *tp, struct fw_filter *f,
        }
 #endif /* CONFIG_NET_CLS_IND */
 
+       if (tb[TCA_FW_MASK-1]) {
+               if (RTA_PAYLOAD(tb[TCA_FW_MASK-1]) != sizeof(u32))
+                       goto errout;
+               mask = *(u32*)RTA_DATA(tb[TCA_FW_MASK-1]);
+               if (mask != head->mask)
+                       goto errout;
+       } else if (head->mask != 0xFFFFFFFF)
+               goto errout;
+
        tcf_exts_change(tp, &f->exts, &e);
 
        return 0;
@@ -267,20 +279,26 @@ static int fw_change(struct tcf_proto *tp, unsigned long base,
                return -EINVAL;
 
        if (head == NULL) {
-               head = kmalloc(sizeof(struct fw_head), GFP_KERNEL);
+               u32 mask = 0xFFFFFFFF;
+               if (tb[TCA_FW_MASK-1]) {
+                       if (RTA_PAYLOAD(tb[TCA_FW_MASK-1]) != sizeof(u32))
+                               return -EINVAL;
+                       mask = *(u32*)RTA_DATA(tb[TCA_FW_MASK-1]);
+               }
+
+               head = kzalloc(sizeof(struct fw_head), GFP_KERNEL);
                if (head == NULL)
                        return -ENOBUFS;
-               memset(head, 0, sizeof(*head));
+               head->mask = mask;
 
                tcf_tree_lock(tp);
                tp->root = head;
                tcf_tree_unlock(tp);
        }
 
-       f = kmalloc(sizeof(struct fw_filter), GFP_KERNEL);
+       f = kzalloc(sizeof(struct fw_filter), GFP_KERNEL);
        if (f == NULL)
                return -ENOBUFS;
-       memset(f, 0, sizeof(*f));
 
        f->id = handle;
 
@@ -332,6 +350,7 @@ static void fw_walk(struct tcf_proto *tp, struct tcf_walker *arg)
 static int fw_dump(struct tcf_proto *tp, unsigned long fh,
                   struct sk_buff *skb, struct tcmsg *t)
 {
+       struct fw_head *head = (struct fw_head *)tp->root;
        struct fw_filter *f = (struct fw_filter*)fh;
        unsigned char    *b = skb->tail;
        struct rtattr *rta;
@@ -353,6 +372,8 @@ static int fw_dump(struct tcf_proto *tp, unsigned long fh,
        if (strlen(f->indev))
                RTA_PUT(skb, TCA_FW_INDEV, IFNAMSIZ, f->indev);
 #endif /* CONFIG_NET_CLS_IND */
+       if (head->mask != 0xFFFFFFFF)
+               RTA_PUT(skb, TCA_FW_MASK, 4, &head->mask);
 
        if (tcf_exts_dump(skb, &f->exts, &fw_ext_map) < 0)
                goto rtattr_failure;