netns: export netns list

[safe/jmp/linux-2.6] / net / netfilter / xt_CONNSECMARK.c

diff --git a/net/netfilter/xt_CONNSECMARK.c b/net/netfilter/xt_CONNSECMARK.c
index 021b5c8..ae939e5 100644 (file)
--- a/net/netfilter/xt_CONNSECMARK.c
+++ b/net/netfilter/xt_CONNSECMARK.c
@@ -8,7 +8,7 @@
  *   Copyright (C) 2002,2004 MARA Systems AB <http://www.marasystems.com>
  *    by Henrik Nordstrom <hno@marasystems.com>
  *
- * (C) 2006 Red Hat, Inc., James Morris <jmorris@redhat.com>
+ * (C) 2006,2008 Red Hat, Inc., James Morris <jmorris@redhat.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -20,12 +20,13 @@
 #include <linux/netfilter/x_tables.h>
 #include <linux/netfilter/xt_CONNSECMARK.h>
 #include <net/netfilter/nf_conntrack.h>
+#include <net/netfilter/nf_conntrack_ecache.h>
 
 #define PFX "CONNSECMARK: "
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("James Morris <jmorris@redhat.com>");
-MODULE_DESCRIPTION("ip[6]tables CONNSECMARK module");
+MODULE_DESCRIPTION("Xtables: target for copying between connection and security mark");
 MODULE_ALIAS("ipt_CONNSECMARK");
 MODULE_ALIAS("ip6t_CONNSECMARK");
 
@@ -40,8 +41,10 @@ static void secmark_save(const struct sk_buff *skb)
                enum ip_conntrack_info ctinfo;
 
                ct = nf_ct_get(skb, &ctinfo);
-               if (ct && !ct->secmark)
+               if (ct && !ct->secmark) {
                        ct->secmark = skb->secmark;
+                       nf_conntrack_event_cache(IPCT_SECMARK, skb);
+               }
        }
 }
 
@@ -52,7 +55,7 @@ static void secmark_save(const struct sk_buff *skb)
 static void secmark_restore(struct sk_buff *skb)
 {
        if (!skb->secmark) {
-               struct nf_conn *ct;
+               const struct nf_conn *ct;
                enum ip_conntrack_info ctinfo;
 
                ct = nf_ct_get(skb, &ctinfo);
@@ -61,10 +64,10 @@ static void secmark_restore(struct sk_buff *skb)
        }
 }
 
-static unsigned int target(struct sk_buff *skb, const struct net_device *in,
-                          const struct net_device *out, unsigned int hooknum,
-                          const struct xt_target *target,
-                          const void *targinfo)
+static unsigned int
+connsecmark_tg(struct sk_buff *skb, const struct net_device *in,
+               const struct net_device *out, unsigned int hooknum,
+               const struct xt_target *target, const void *targinfo)
 {
        const struct xt_connsecmark_target_info *info = targinfo;
 
@@ -84,17 +87,19 @@ static unsigned int target(struct sk_buff *skb, const struct net_device *in,
        return XT_CONTINUE;
 }
 
-static bool checkentry(const char *tablename, const void *entry,
-                      const struct xt_target *target, void *targinfo,
-                      unsigned int hook_mask)
+static bool
+connsecmark_tg_check(const char *tablename, const void *entry,
+                     const struct xt_target *target, void *targinfo,
+                     unsigned int hook_mask)
 {
        const struct xt_connsecmark_target_info *info = targinfo;
 
-       if (nf_ct_l3proto_try_module_get(target->family) < 0) {
-               printk(KERN_WARNING "can't load conntrack support for "
-                                   "proto=%d\n", target->family);
+       if (strcmp(tablename, "mangle") && strcmp(tablename, "security")) {
+               printk(KERN_INFO PFX "target only valid in the \'mangle\' "
+                      "or \'security\' tables, not \'%s\'.\n", tablename);
                return false;
        }
+
        switch (info->mode) {
        case CONNSECMARK_SAVE:
        case CONNSECMARK_RESTORE:
@@ -105,49 +110,52 @@ static bool checkentry(const char *tablename, const void *entry,
                return false;
        }
 
+       if (nf_ct_l3proto_try_module_get(target->family) < 0) {
+               printk(KERN_WARNING "can't load conntrack support for "
+                                   "proto=%u\n", target->family);
+               return false;
+       }
        return true;
 }
 
 static void
-destroy(const struct xt_target *target, void *targinfo)
+connsecmark_tg_destroy(const struct xt_target *target, void *targinfo)
 {
        nf_ct_l3proto_module_put(target->family);
 }
 
-static struct xt_target xt_connsecmark_target[] __read_mostly = {
+static struct xt_target connsecmark_tg_reg[] __read_mostly = {
        {
                .name           = "CONNSECMARK",
-               .family         = AF_INET,
-               .checkentry     = checkentry,
-               .destroy        = destroy,
-               .target         = target,
+               .family         = NFPROTO_IPV4,
+               .checkentry     = connsecmark_tg_check,
+               .destroy        = connsecmark_tg_destroy,
+               .target         = connsecmark_tg,
                .targetsize     = sizeof(struct xt_connsecmark_target_info),
-               .table          = "mangle",
                .me             = THIS_MODULE,
        },
        {
                .name           = "CONNSECMARK",
-               .family         = AF_INET6,
-               .checkentry     = checkentry,
-               .destroy        = destroy,
-               .target         = target,
+               .family         = NFPROTO_IPV6,
+               .checkentry     = connsecmark_tg_check,
+               .destroy        = connsecmark_tg_destroy,
+               .target         = connsecmark_tg,
                .targetsize     = sizeof(struct xt_connsecmark_target_info),
-               .table          = "mangle",
                .me             = THIS_MODULE,
        },
 };
 
-static int __init xt_connsecmark_init(void)
+static int __init connsecmark_tg_init(void)
 {
-       return xt_register_targets(xt_connsecmark_target,
-                                  ARRAY_SIZE(xt_connsecmark_target));
+       return xt_register_targets(connsecmark_tg_reg,
+              ARRAY_SIZE(connsecmark_tg_reg));
 }
 
-static void __exit xt_connsecmark_fini(void)
+static void __exit connsecmark_tg_exit(void)
 {
-       xt_unregister_targets(xt_connsecmark_target,
-                             ARRAY_SIZE(xt_connsecmark_target));
+       xt_unregister_targets(connsecmark_tg_reg,
+                             ARRAY_SIZE(connsecmark_tg_reg));
 }
 
-module_init(xt_connsecmark_init);
-module_exit(xt_connsecmark_fini);
+module_init(connsecmark_tg_init);
+module_exit(connsecmark_tg_exit);