[NETFILTER]: merge ipt_owner/ip6t_owner in xt_owner

xt_owner merges ipt_owner and ip6t_owner, and adds a flag to match
on socket (non-)existence.

Signed-off-by: Jan Engelhardt <jengelh@computergmbh.de>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

3 files changed, 0 insertions, 97 deletions

diff --git a/net/ipv6/netfilter/Kconfig b/net/ipv6/netfilter/Kconfig
index 838b8ddee8c0..30d48529d988 100644
--- a/net/ipv6/netfilter/Kconfig
+++ b/net/ipv6/netfilter/Kconfig
@@ -89,15 +89,6 @@ config IP6_NF_MATCH_HL
 
 	  To compile it as a module, choose M here.  If unsure, say N.
 
-config IP6_NF_MATCH_OWNER
-	tristate "Owner match support"
-	depends on IP6_NF_IPTABLES
-	help
-	  Packet owner matching allows you to match locally-generated packets
-	  based on who created them: the user, group, process or session.
-
-	  To compile it as a module, choose M here.  If unsure, say N.
-
 config IP6_NF_MATCH_IPV6HEADER
 	tristate "IPv6 Extension Headers Match"
 	depends on IP6_NF_IPTABLES
diff --git a/net/ipv6/netfilter/Makefile b/net/ipv6/netfilter/Makefile
index e789ec44d23b..fbf2c14ed887 100644
--- a/net/ipv6/netfilter/Makefile
+++ b/net/ipv6/netfilter/Makefile
@@ -23,7 +23,6 @@ obj-$(CONFIG_IP6_NF_MATCH_HL) += ip6t_hl.o
 obj-$(CONFIG_IP6_NF_MATCH_IPV6HEADER) += ip6t_ipv6header.o
 obj-$(CONFIG_IP6_NF_MATCH_MH) += ip6t_mh.o
 obj-$(CONFIG_IP6_NF_MATCH_OPTS) += ip6t_hbh.o
-obj-$(CONFIG_IP6_NF_MATCH_OWNER) += ip6t_owner.o
 obj-$(CONFIG_IP6_NF_MATCH_RT) += ip6t_rt.o
 
 # targets
diff --git a/net/ipv6/netfilter/ip6t_owner.c b/net/ipv6/netfilter/ip6t_owner.c
deleted file mode 100644
index 6a52ed985166..000000000000
--- a/net/ipv6/netfilter/ip6t_owner.c
+++ /dev/null
@@ -1,87 +0,0 @@
-/* Kernel module to match various things tied to sockets associated with
-   locally generated outgoing packets. */
-
-/* (C) 2000-2001 Marc Boucher <marc@mbsi.ca>
- *
- * 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
- * published by the Free Software Foundation.
- */
-
-#include <linux/module.h>
-#include <linux/skbuff.h>
-#include <linux/file.h>
-#include <linux/rcupdate.h>
-#include <net/sock.h>
-
-#include <linux/netfilter_ipv6/ip6t_owner.h>
-#include <linux/netfilter_ipv6/ip6_tables.h>
-#include <linux/netfilter/x_tables.h>
-
-MODULE_AUTHOR("Marc Boucher <marc@mbsi.ca>");
-MODULE_DESCRIPTION("IP6 tables owner matching module");
-MODULE_LICENSE("GPL");
-
-
-static bool
-owner_mt6(const struct sk_buff *skb, const struct net_device *in,
-          const struct net_device *out, const struct xt_match *match,
-          const void *matchinfo, int offset, unsigned int protoff,
-          bool *hotdrop)
-{
-	const struct ip6t_owner_info *info = matchinfo;
-
-	if (!skb->sk || !skb->sk->sk_socket || !skb->sk->sk_socket->file)
-		return false;
-
-	if (info->match & IP6T_OWNER_UID)
-		if ((skb->sk->sk_socket->file->f_uid != info->uid) ^
-		    !!(info->invert & IP6T_OWNER_UID))
-			return false;
-
-	if (info->match & IP6T_OWNER_GID)
-		if ((skb->sk->sk_socket->file->f_gid != info->gid) ^
-		    !!(info->invert & IP6T_OWNER_GID))
-			return false;
-
-	return true;
-}
-
-static bool
-owner_mt6_check(const char *tablename, const void *ip,
-                const struct xt_match *match, void *matchinfo,
-                unsigned int hook_mask)
-{
-	const struct ip6t_owner_info *info = matchinfo;
-
-	if (info->match & (IP6T_OWNER_PID | IP6T_OWNER_SID)) {
-		printk("ipt_owner: pid and sid matching "
-		       "not supported anymore\n");
-		return false;
-	}
-	return true;
-}
-
-static struct xt_match owner_mt6_reg __read_mostly = {
-	.name		= "owner",
-	.family		= AF_INET6,
-	.match		= owner_mt6,
-	.matchsize	= sizeof(struct ip6t_owner_info),
-	.hooks		= (1 << NF_INET_LOCAL_OUT) |
-			  (1 << NF_INET_POST_ROUTING),
-	.checkentry	= owner_mt6_check,
-	.me		= THIS_MODULE,
-};
-
-static int __init owner_mt6_init(void)
-{
-	return xt_register_match(&owner_mt6_reg);
-}
-
-static void __exit owner_mt6_exit(void)
-{
-	xt_unregister_match(&owner_mt6_reg);
-}
-
-module_init(owner_mt6_init);
-module_exit(owner_mt6_exit);