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netfilter: xtables: remove xt_owner v0 

Superseded by xt_owner v1 (v2.6.24-2388-g0265ab4).

Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
This commit is contained in:
Jan Engelhardt 2009-06-12 19:46:26 +02:00
parent 4725c7287e
commit 6461caed83
5 changed files with 12 additions and 158 deletions
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1
include/linux/netfilter_ipv4/Kbuild
View File

@ -28,7 +28,6 @@ header-y += ipt_limit.h
header-y += ipt_mac.h
header-y += ipt_mark.h
header-y += ipt_multiport.h
header-y += ipt_owner.h
header-y += ipt_physdev.h
header-y += ipt_pkttype.h
header-y += ipt_policy.h

20
include/linux/netfilter_ipv4/ipt_owner.h
View File

@ -1,20 +0,0 @@
#ifndef _IPT_OWNER_H
#define _IPT_OWNER_H
/* match and invert flags */
#define IPT_OWNER_UID 0x01
#define IPT_OWNER_GID 0x02
#define IPT_OWNER_PID 0x04
#define IPT_OWNER_SID 0x08
#define IPT_OWNER_COMM 0x10
struct ipt_owner_info {
__kernel_uid32_t uid;
__kernel_gid32_t gid;
__kernel_pid_t pid;
__kernel_pid_t sid;
char comm[16];
u_int8_t match, invert; /* flags */
};
#endif /*_IPT_OWNER_H*/

1
include/linux/netfilter_ipv6/Kbuild
View File

@ -14,7 +14,6 @@ header-y += ip6t_mark.h
header-y += ip6t_mh.h
header-y += ip6t_multiport.h
header-y += ip6t_opts.h
header-y += ip6t_owner.h
header-y += ip6t_physdev.h
header-y += ip6t_policy.h
header-y += ip6t_rt.h

18
include/linux/netfilter_ipv6/ip6t_owner.h
View File

@ -1,18 +0,0 @@
#ifndef _IP6T_OWNER_H
#define _IP6T_OWNER_H
/* match and invert flags */
#define IP6T_OWNER_UID 0x01
#define IP6T_OWNER_GID 0x02
#define IP6T_OWNER_PID 0x04
#define IP6T_OWNER_SID 0x08
struct ip6t_owner_info {
__kernel_uid32_t uid;
__kernel_gid32_t gid;
__kernel_pid_t pid;
__kernel_pid_t sid;
u_int8_t match, invert; /* flags */
};
#endif /*_IPT_OWNER_H*/

130
net/netfilter/xt_owner.c
View File

@ -5,7 +5,6 @@
* (C) 2000 Marc Boucher <marc@mbsi.ca>
*
* Copyright © CC Computer Consultants GmbH, 2007 - 2008
* <jengelh@computergmbh.de>
*
* 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
@ -17,60 +16,6 @@
#include <net/sock.h>
#include <linux/netfilter/x_tables.h>
#include <linux/netfilter/xt_owner.h>
#include <linux/netfilter_ipv4/ipt_owner.h>
#include <linux/netfilter_ipv6/ip6t_owner.h>
static bool
owner_mt_v0(const struct sk_buff *skb, const struct xt_match_param *par)
{
const struct ipt_owner_info *info = par->matchinfo;
const struct file *filp;
if (skb->sk == NULL || skb->sk->sk_socket == NULL)
return false;
filp = skb->sk->sk_socket->file;
if (filp == NULL)
return false;
if (info->match & IPT_OWNER_UID)
if ((filp->f_cred->fsuid != info->uid) ^
!!(info->invert & IPT_OWNER_UID))
return false;
if (info->match & IPT_OWNER_GID)
if ((filp->f_cred->fsgid != info->gid) ^
!!(info->invert & IPT_OWNER_GID))
return false;
return true;
}
static bool
owner_mt6_v0(const struct sk_buff *skb, const struct xt_match_param *par)
{
const struct ip6t_owner_info *info = par->matchinfo;
const struct file *filp;
if (skb->sk == NULL || skb->sk->sk_socket == NULL)
return false;
filp = skb->sk->sk_socket->file;
if (filp == NULL)
return false;
if (info->match & IP6T_OWNER_UID)
if ((filp->f_cred->fsuid != info->uid) ^
!!(info->invert & IP6T_OWNER_UID))
return false;
if (info->match & IP6T_OWNER_GID)
if ((filp->f_cred->fsgid != info->gid) ^
!!(info->invert & IP6T_OWNER_GID))
return false;
return true;
}
static bool
owner_mt(const struct sk_buff *skb, const struct xt_match_param *par)
@ -107,81 +52,30 @@ owner_mt(const struct sk_buff *skb, const struct xt_match_param *par)
return true;
}
static bool owner_mt_check_v0(const struct xt_mtchk_param *par)
{
const struct ipt_owner_info *info = par->matchinfo;
if (info->match & (IPT_OWNER_PID | IPT_OWNER_SID | IPT_OWNER_COMM)) {
printk(KERN_WARNING KBUILD_MODNAME
": PID, SID and command matching is not "
"supported anymore\n");
return false;
}
return true;
}
static bool owner_mt6_check_v0(const struct xt_mtchk_param *par)
{
const struct ip6t_owner_info *info = par->matchinfo;
if (info->match & (IP6T_OWNER_PID | IP6T_OWNER_SID)) {
printk(KERN_WARNING KBUILD_MODNAME
": PID and SID matching is not supported anymore\n");
return false;
}
return true;
}
static struct xt_match owner_mt_reg[] __read_mostly = {
{
.name = "owner",
.revision = 0,
.family = NFPROTO_IPV4,
.match = owner_mt_v0,
.matchsize = sizeof(struct ipt_owner_info),
.checkentry = owner_mt_check_v0,
.hooks = (1 << NF_INET_LOCAL_OUT) |
(1 << NF_INET_POST_ROUTING),
.me = THIS_MODULE,
},
{
.name = "owner",
.revision = 0,
.family = NFPROTO_IPV6,
.match = owner_mt6_v0,
.matchsize = sizeof(struct ip6t_owner_info),
.checkentry = owner_mt6_check_v0,
.hooks = (1 << NF_INET_LOCAL_OUT) |
(1 << NF_INET_POST_ROUTING),
.me = THIS_MODULE,
},
{
.name = "owner",
.revision = 1,
.family = NFPROTO_UNSPEC,
.match = owner_mt,
.matchsize = sizeof(struct xt_owner_match_info),
.hooks = (1 << NF_INET_LOCAL_OUT) |
(1 << NF_INET_POST_ROUTING),
.me = THIS_MODULE,
},
static struct xt_match owner_mt_reg __read_mostly = {
.name = "owner",
.revision = 1,
.family = NFPROTO_UNSPEC,
.match = owner_mt,
.matchsize = sizeof(struct xt_owner_match_info),
.hooks = (1 << NF_INET_LOCAL_OUT) |
(1 << NF_INET_POST_ROUTING),
.me = THIS_MODULE,
};
static int __init owner_mt_init(void)
{
return xt_register_matches(owner_mt_reg, ARRAY_SIZE(owner_mt_reg));
return xt_register_match(&owner_mt_reg);
}
static void __exit owner_mt_exit(void)
{
xt_unregister_matches(owner_mt_reg, ARRAY_SIZE(owner_mt_reg));
xt_unregister_match(&owner_mt_reg);
}
module_init(owner_mt_init);
module_exit(owner_mt_exit);
MODULE_AUTHOR("Jan Engelhardt <jengelh@computergmbh.de>");
MODULE_AUTHOR("Jan Engelhardt <jengelh@medozas.de>");
MODULE_DESCRIPTION("Xtables: socket owner matching");
MODULE_LICENSE("GPL");
MODULE_ALIAS("ipt_owner");