[NETFILTER]: convert nfmark and conntrack mark to 32bit

As discussed at netconf'05, we convert nfmark and conntrack-mark to be
32bits even on 64bit architectures.

Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/netfilter_ipv4/ip_conntrack.h b/include/linux/netfilter_ipv4/ip_conntrack.h
index 08fe5f7..4ed720f 100644 (file)
--- a/include/linux/netfilter_ipv4/ip_conntrack.h
+++ b/include/linux/netfilter_ipv4/ip_conntrack.h
@@ -171,7 +171,7 @@ struct ip_conntrack
 #endif /* CONFIG_IP_NF_NAT_NEEDED */
 
 #if defined(CONFIG_IP_NF_CONNTRACK_MARK)
-       unsigned long mark;
+       u_int32_t mark;
 #endif
 
        /* Traversed often, so hopefully in different cacheline to top */

diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index 948527e..2e40f4c 100644 (file)
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -259,7 +259,7 @@ struct sk_buff {
 
        void                    (*destructor)(struct sk_buff *skb);
 #ifdef CONFIG_NETFILTER
-       unsigned long           nfmark;
+       __u32                   nfmark;
        __u32                   nfcache;
        __u32                   nfctinfo;
        struct nf_conntrack     *nfct;

diff --git a/net/ipv4/netfilter/ip_conntrack_standalone.c b/net/ipv4/netfilter/ip_conntrack_standalone.c
index 61798c4..dccd4ab 100644 (file)
--- a/net/ipv4/netfilter/ip_conntrack_standalone.c
+++ b/net/ipv4/netfilter/ip_conntrack_standalone.c
@@ -185,7 +185,7 @@ static int ct_seq_show(struct seq_file *s, void *v)
                        return -ENOSPC;
 
 #if defined(CONFIG_IP_NF_CONNTRACK_MARK)
-       if (seq_printf(s, "mark=%lu ", conntrack->mark))
+       if (seq_printf(s, "mark=%u ", conntrack->mark))
                return -ENOSPC;
 #endif
 

diff --git a/net/ipv4/netfilter/ipt_CLUSTERIP.c b/net/ipv4/netfilter/ipt_CLUSTERIP.c
index 6706d3a..2d05caf 100644 (file)
--- a/net/ipv4/netfilter/ipt_CLUSTERIP.c
+++ b/net/ipv4/netfilter/ipt_CLUSTERIP.c
@@ -367,7 +367,7 @@ target(struct sk_buff **pskb,
 #ifdef DEBUG_CLUSTERP
        DUMP_TUPLE(&ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple);
 #endif
-       DEBUGP("hash=%u ct_hash=%lu ", hash, ct->mark);
+       DEBUGP("hash=%u ct_hash=%u ", hash, ct->mark);
        if (!clusterip_responsible(cipinfo->config, hash)) {
                DEBUGP("not responsible\n");
                return NF_DROP;

diff --git a/net/ipv4/netfilter/ipt_CONNMARK.c b/net/ipv4/netfilter/ipt_CONNMARK.c
index 30ddd3e..8ed7441 100644 (file)
--- a/net/ipv4/netfilter/ipt_CONNMARK.c
+++ b/net/ipv4/netfilter/ipt_CONNMARK.c
@@ -40,9 +40,9 @@ target(struct sk_buff **pskb,
        void *userinfo)
 {
        const struct ipt_connmark_target_info *markinfo = targinfo;
-       unsigned long diff;
-       unsigned long nfmark;
-       unsigned long newmark;
+       u_int32_t diff;
+       u_int32_t nfmark;
+       u_int32_t newmark;
 
        enum ip_conntrack_info ctinfo;
        struct ip_conntrack *ct = ip_conntrack_get((*pskb), &ctinfo);
@@ -94,6 +94,11 @@ checkentry(const char *tablename,
            }
        }
 
+       if (matchinfo->mark > 0xffffffff || matchinfo->mask > 0xffffffff) {
+               printk(KERN_WARNING "CONNMARK: Only supports 32bit mark\n");
+               return 0;
+       }
+
        return 1;
 }
 

diff --git a/net/ipv4/netfilter/ipt_MARK.c b/net/ipv4/netfilter/ipt_MARK.c
index 33c6f9b..8526398 100644 (file)
--- a/net/ipv4/netfilter/ipt_MARK.c
+++ b/net/ipv4/netfilter/ipt_MARK.c
@@ -76,6 +76,8 @@ checkentry_v0(const char *tablename,
              unsigned int targinfosize,
              unsigned int hook_mask)
 {
+       struct ipt_mark_target_info *markinfo = targinfo;
+
        if (targinfosize != IPT_ALIGN(sizeof(struct ipt_mark_target_info))) {
                printk(KERN_WARNING "MARK: targinfosize %u != %Zu\n",
                       targinfosize,
@@ -88,6 +90,11 @@ checkentry_v0(const char *tablename,
                return 0;
        }
 
+       if (markinfo->mark > 0xffffffff) {
+               printk(KERN_WARNING "MARK: Only supports 32bit wide mark\n");
+               return 0;
+       }
+
        return 1;
 }
 
@@ -120,6 +127,11 @@ checkentry_v1(const char *tablename,
                return 0;
        }
 
+       if (markinfo->mark > 0xffffffff) {
+               printk(KERN_WARNING "MARK: Only supports 32bit wide mark\n");
+               return 0;
+       }
+
        return 1;
 }
 

diff --git a/net/ipv4/netfilter/ipt_connmark.c b/net/ipv4/netfilter/ipt_connmark.c
index 2706f96..bf8de47 100644 (file)
--- a/net/ipv4/netfilter/ipt_connmark.c
+++ b/net/ipv4/netfilter/ipt_connmark.c
@@ -54,9 +54,16 @@ checkentry(const char *tablename,
           unsigned int matchsize,
           unsigned int hook_mask)
 {
+       struct ipt_connmark_info *cm = 
+                               (struct ipt_connmark_info *)matchinfo;
        if (matchsize != IPT_ALIGN(sizeof(struct ipt_connmark_info)))
                return 0;
 
+       if (cm->mark > 0xffffffff || cm->mask > 0xffffffff) {
+               printk(KERN_WARNING "connmark: only support 32bit mark\n");
+               return 0;
+       }
+
        return 1;
 }
 

diff --git a/net/ipv4/netfilter/ipt_mark.c b/net/ipv4/netfilter/ipt_mark.c
index 8955728..00bef6c 100644 (file)
--- a/net/ipv4/netfilter/ipt_mark.c
+++ b/net/ipv4/netfilter/ipt_mark.c
@@ -37,9 +37,16 @@ checkentry(const char *tablename,
            unsigned int matchsize,
            unsigned int hook_mask)
 {
+       struct ipt_mark_info *minfo = (struct ipt_mark_info *) matchinfo;
+
        if (matchsize != IPT_ALIGN(sizeof(struct ipt_mark_info)))
                return 0;
 
+       if (minfo->mark > 0xffffffff || minfo->mask > 0xffffffff) {
+               printk(KERN_WARNING "mark: only supports 32bit mark\n");
+               return 0;
+       }
+
        return 1;
 }