Gitweb:     
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=0265ab44bacc1a1e0e3f5873d8ca2d5a29e33db2
Commit:     0265ab44bacc1a1e0e3f5873d8ca2d5a29e33db2
Parent:     9e67d5a739327c44885adebb4f3a538050be73e4
Author:     Jan Engelhardt <[EMAIL PROTECTED]>
AuthorDate: Tue Dec 4 23:27:38 2007 -0800
Committer:  David S. Miller <[EMAIL PROTECTED]>
CommitDate: Mon Jan 28 14:55:55 2008 -0800

    [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 <[EMAIL PROTECTED]>
    Signed-off-by: Patrick McHardy <[EMAIL PROTECTED]>
    Signed-off-by: David S. Miller <[EMAIL PROTECTED]>
---
 include/linux/netfilter/Kbuild     |    1 +
 include/linux/netfilter/xt_owner.h |   16 +++
 net/ipv4/netfilter/Kconfig         |    9 --
 net/ipv4/netfilter/Makefile        |    1 -
 net/ipv4/netfilter/ipt_owner.c     |   87 ---------------
 net/ipv6/netfilter/Kconfig         |    9 --
 net/ipv6/netfilter/Makefile        |    1 -
 net/ipv6/netfilter/ip6t_owner.c    |   87 ---------------
 net/netfilter/Kconfig              |    8 ++
 net/netfilter/Makefile             |    1 +
 net/netfilter/xt_owner.c           |  211 ++++++++++++++++++++++++++++++++++++
 11 files changed, 237 insertions(+), 194 deletions(-)

diff --git a/include/linux/netfilter/Kbuild b/include/linux/netfilter/Kbuild
index b87e83a..1e69002 100644
--- a/include/linux/netfilter/Kbuild
+++ b/include/linux/netfilter/Kbuild
@@ -26,6 +26,7 @@ header-y += xt_limit.h
 header-y += xt_mac.h
 header-y += xt_mark.h
 header-y += xt_multiport.h
+header-y += xt_owner.h
 header-y += xt_pkttype.h
 header-y += xt_policy.h
 header-y += xt_realm.h
diff --git a/include/linux/netfilter/xt_owner.h 
b/include/linux/netfilter/xt_owner.h
new file mode 100644
index 0000000..eacd34e
--- /dev/null
+++ b/include/linux/netfilter/xt_owner.h
@@ -0,0 +1,16 @@
+#ifndef _XT_OWNER_MATCH_H
+#define _XT_OWNER_MATCH_H
+
+enum {
+       XT_OWNER_UID    = 1 << 0,
+       XT_OWNER_GID    = 1 << 1,
+       XT_OWNER_SOCKET = 1 << 2,
+};
+
+struct xt_owner_match_info {
+       u_int32_t uid;
+       u_int32_t gid;
+       u_int8_t match, invert;
+};
+
+#endif /* _XT_OWNER_MATCH_H */
diff --git a/net/ipv4/netfilter/Kconfig b/net/ipv4/netfilter/Kconfig
index 9aca9c5..6c563d9 100644
--- a/net/ipv4/netfilter/Kconfig
+++ b/net/ipv4/netfilter/Kconfig
@@ -111,15 +111,6 @@ config IP_NF_MATCH_TTL
 
          To compile it as a module, choose M here.  If unsure, say N.
 
-config IP_NF_MATCH_OWNER
-       tristate "Owner match support"
-       depends on IP_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 IP_NF_MATCH_ADDRTYPE
        tristate  'address type match support'
        depends on IP_NF_IPTABLES
diff --git a/net/ipv4/netfilter/Makefile b/net/ipv4/netfilter/Makefile
index 7456833..42199e9 100644
--- a/net/ipv4/netfilter/Makefile
+++ b/net/ipv4/netfilter/Makefile
@@ -45,7 +45,6 @@ obj-$(CONFIG_IP_NF_MATCH_ADDRTYPE) += ipt_addrtype.o
 obj-$(CONFIG_IP_NF_MATCH_AH) += ipt_ah.o
 obj-$(CONFIG_IP_NF_MATCH_ECN) += ipt_ecn.o
 obj-$(CONFIG_IP_NF_MATCH_IPRANGE) += ipt_iprange.o
-obj-$(CONFIG_IP_NF_MATCH_OWNER) += ipt_owner.o
 obj-$(CONFIG_IP_NF_MATCH_RECENT) += ipt_recent.o
 obj-$(CONFIG_IP_NF_MATCH_TOS) += ipt_tos.o
 obj-$(CONFIG_IP_NF_MATCH_TTL) += ipt_ttl.o
diff --git a/net/ipv4/netfilter/ipt_owner.c b/net/ipv4/netfilter/ipt_owner.c
deleted file mode 100644
index 4f1aa89..0000000
--- a/net/ipv4/netfilter/ipt_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 Marc Boucher <[EMAIL PROTECTED]>
- *
- * 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_ipv4/ipt_owner.h>
-#include <linux/netfilter/x_tables.h>
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Marc Boucher <[EMAIL PROTECTED]>");
-MODULE_DESCRIPTION("iptables owner match");
-
-static bool
-owner_mt(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 ipt_owner_info *info = matchinfo;
-
-       if (!skb->sk || !skb->sk->sk_socket || !skb->sk->sk_socket->file)
-               return false;
-
-       if(info->match & IPT_OWNER_UID) {
-               if ((skb->sk->sk_socket->file->f_uid != info->uid) ^
-                   !!(info->invert & IPT_OWNER_UID))
-                       return false;
-       }
-
-       if(info->match & IPT_OWNER_GID) {
-               if ((skb->sk->sk_socket->file->f_gid != info->gid) ^
-                   !!(info->invert & IPT_OWNER_GID))
-                       return false;
-       }
-
-       return true;
-}
-
-static bool
-owner_mt_check(const char *tablename, const void *ip,
-               const struct xt_match *match, void *matchinfo,
-               unsigned int hook_mask)
-{
-       const struct ipt_owner_info *info = matchinfo;
-
-       if (info->match & (IPT_OWNER_PID|IPT_OWNER_SID|IPT_OWNER_COMM)) {
-               printk("ipt_owner: pid, sid and command matching "
-                      "not supported anymore\n");
-               return false;
-       }
-       return true;
-}
-
-static struct xt_match owner_mt_reg __read_mostly = {
-       .name           = "owner",
-       .family         = AF_INET,
-       .match          = owner_mt,
-       .matchsize      = sizeof(struct ipt_owner_info),
-       .hooks          = (1 << NF_INET_LOCAL_OUT) |
-                         (1 << NF_INET_POST_ROUTING),
-       .checkentry     = owner_mt_check,
-       .me             = THIS_MODULE,
-};
-
-static int __init owner_mt_init(void)
-{
-       return xt_register_match(&owner_mt_reg);
-}
-
-static void __exit owner_mt_exit(void)
-{
-       xt_unregister_match(&owner_mt_reg);
-}
-
-module_init(owner_mt_init);
-module_exit(owner_mt_exit);
diff --git a/net/ipv6/netfilter/Kconfig b/net/ipv6/netfilter/Kconfig
index 838b8dd..30d4852 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 e789ec4..fbf2c14 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 6a52ed9..0000000
--- 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 <[EMAIL PROTECTED]>
- *
- * 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 <[EMAIL PROTECTED]>");
-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);
diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig
index 693f861..4bc0552 100644
--- a/net/netfilter/Kconfig
+++ b/net/netfilter/Kconfig
@@ -554,6 +554,14 @@ config NETFILTER_XT_MATCH_MARK
 
          To compile it as a module, choose M here.  If unsure, say N.
 
+config NETFILTER_XT_MATCH_OWNER
+       tristate '"owner" match support'
+       depends on NETFILTER_XTABLES
+       ---help---
+       Socket owner matching allows you to match locally-generated packets
+       based on who created the socket: the user or group. It is also
+       possible to check whether a socket actually exists.
+
 config NETFILTER_XT_MATCH_POLICY
        tristate 'IPsec "policy" match support'
        depends on NETFILTER_XTABLES && XFRM
diff --git a/net/netfilter/Makefile b/net/netfilter/Makefile
index 7763dea..28f59a3 100644
--- a/net/netfilter/Makefile
+++ b/net/netfilter/Makefile
@@ -67,6 +67,7 @@ obj-$(CONFIG_NETFILTER_XT_MATCH_LIMIT) += xt_limit.o
 obj-$(CONFIG_NETFILTER_XT_MATCH_MAC) += xt_mac.o
 obj-$(CONFIG_NETFILTER_XT_MATCH_MARK) += xt_mark.o
 obj-$(CONFIG_NETFILTER_XT_MATCH_MULTIPORT) += xt_multiport.o
+obj-$(CONFIG_NETFILTER_XT_MATCH_OWNER) += xt_owner.o
 obj-$(CONFIG_NETFILTER_XT_MATCH_PHYSDEV) += xt_physdev.o
 obj-$(CONFIG_NETFILTER_XT_MATCH_PKTTYPE) += xt_pkttype.o
 obj-$(CONFIG_NETFILTER_XT_MATCH_POLICY) += xt_policy.o
diff --git a/net/netfilter/xt_owner.c b/net/netfilter/xt_owner.c
new file mode 100644
index 0000000..4222fa2
--- /dev/null
+++ b/net/netfilter/xt_owner.c
@@ -0,0 +1,211 @@
+/*
+ * Kernel module to match various things tied to sockets associated with
+ * locally generated outgoing packets.
+ *
+ * (C) 2000 Marc Boucher <[EMAIL PROTECTED]>
+ *
+ * Copyright © CC Computer Consultants GmbH, 2007
+ * Contact: <[EMAIL PROTECTED]>
+ *
+ * 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 <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 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 ipt_owner_info *info = 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_uid != info->uid) ^
+                   !!(info->invert & IPT_OWNER_UID))
+                       return false;
+
+       if (info->match & IPT_OWNER_GID)
+               if ((filp->f_gid != info->gid) ^
+                   !!(info->invert & IPT_OWNER_GID))
+                       return false;
+
+       return true;
+}
+
+static bool
+owner_mt6_v0(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;
+       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_uid != info->uid) ^
+                   !!(info->invert & IP6T_OWNER_UID))
+                       return false;
+
+       if (info->match & IP6T_OWNER_GID)
+               if ((filp->f_gid != info->gid) ^
+                   !!(info->invert & IP6T_OWNER_GID))
+                       return false;
+
+       return true;
+}
+
+static bool
+owner_mt(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 xt_owner_match_info *info = matchinfo;
+       const struct file *filp;
+
+       if (skb->sk == NULL || skb->sk->sk_socket == NULL)
+               return (info->match ^ info->invert) == 0;
+       else if (info->match & info->invert & XT_OWNER_SOCKET)
+               /*
+                * Socket exists but user wanted ! --socket-exists.
+                * (Single ampersands intended.)
+                */
+               return false;
+
+       filp = skb->sk->sk_socket->file;
+       if (filp == NULL)
+               return ((info->match ^ info->invert) &
+                      (XT_OWNER_UID | XT_OWNER_GID)) == 0;
+
+       if (info->match & XT_OWNER_UID)
+               if ((filp->f_uid != info->uid) ^
+                   !!(info->invert & XT_OWNER_UID))
+                       return false;
+
+       if (info->match & XT_OWNER_GID)
+               if ((filp->f_gid != info->gid) ^
+                   !!(info->invert & XT_OWNER_GID))
+                       return false;
+
+       return true;
+}
+
+static bool
+owner_mt_check_v0(const char *tablename, const void *ip,
+                  const struct xt_match *match, void *matchinfo,
+                  unsigned int hook_mask)
+{
+       const struct ipt_owner_info *info = 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 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(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     = AF_INET,
+               .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     = AF_INET6,
+               .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     = AF_INET,
+               .match      = owner_mt,
+               .matchsize  = sizeof(struct xt_owner_match_info),
+               .hooks      = (1 << NF_INET_LOCAL_OUT) |
+                             (1 << NF_INET_POST_ROUTING),
+               .me         = THIS_MODULE,
+       },
+       {
+               .name       = "owner",
+               .revision   = 1,
+               .family     = AF_INET6,
+               .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));
+}
+
+static void __exit owner_mt_exit(void)
+{
+       xt_unregister_matches(owner_mt_reg, ARRAY_SIZE(owner_mt_reg));
+}
+
+module_init(owner_mt_init);
+module_exit(owner_mt_exit);
+MODULE_AUTHOR("Jan Engelhardt <[EMAIL PROTECTED]>");
+MODULE_DESCRIPTION("netfilter \"owner\" match module");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("ipt_owner");
+MODULE_ALIAS("ip6t_owner");
-
To unsubscribe from this list: send the line "unsubscribe git-commits-head" in
the body of a message to [EMAIL PROTECTED]
More majordomo info at  http://vger.kernel.org/majordomo-info.html

Reply via email to