diff options
Diffstat (limited to 'net/netfilter/xt_owner.c')
| -rw-r--r-- | net/netfilter/xt_owner.c | 130 |
1 files changed, 12 insertions, 118 deletions
diff --git a/net/netfilter/xt_owner.c b/net/netfilter/xt_owner.c index 22b2a5e881ea..d24c76dffee2 100644 --- a/net/netfilter/xt_owner.c +++ b/net/netfilter/xt_owner.c @@ -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"); |