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[NETFILTER]: introduce and use aligned_u64 data type

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As proposed by Andi Kleen, this is required esp. for x86_64 architecture,
where 64bit code needs 8byte aligned 64bit data types, but 32bit userspace
apps will only align to 4bytes.

Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Harald Welte 2005-08-13 13:55:44 -07:00 committed by David S. Miller
parent 17b085eace
commit 0ba2c6e8c0
3 changed files with 9 additions and 4 deletions
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5
include/linux/netfilter/nfnetlink_log.h
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@ -5,6 +5,7 @@
* and not any kind of function definitions. It is shared between kernel and
* userspace. Don't put kernel specific stuff in here */
#include <linux/types.h>
#include <linux/netfilter/nfnetlink.h>
enum nfulnl_msg_types {
@ -27,8 +28,8 @@ struct nfulnl_msg_packet_hw {
} __attribute__ ((packed));
struct nfulnl_msg_packet_timestamp {
u_int64_t sec;
u_int64_t usec;
aligned_u64 sec;
aligned_u64 usec;
} __attribute__ ((packed));
#define NFULNL_PREFIXLEN 30 /* just like old log target */

5
include/linux/netfilter/nfnetlink_queue.h
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@ -1,6 +1,7 @@
#ifndef _NFNETLINK_QUEUE_H
#define _NFNETLINK_QUEUE_H
#include <linux/types.h>
#include <linux/netfilter/nfnetlink.h>
enum nfqnl_msg_types {
@ -24,8 +25,8 @@ struct nfqnl_msg_packet_hw {
} __attribute__ ((packed));
struct nfqnl_msg_packet_timestamp {
u_int64_t sec;
u_int64_t usec;
aligned_u64 sec;
aligned_u64 usec;
} __attribute__ ((packed));
enum nfqnl_attr_type {

3
include/linux/types.h
View File

@ -123,6 +123,9 @@ typedef __u64 u_int64_t;
typedef __s64 int64_t;
#endif
/* this is a special 64bit data type that is 8-byte aligned */
#define aligned_u64 unsigned long long __attribute__((aligned(8)))
/*
* The type used for indexing onto a disc or disc partition.
* If required, asm/types.h can override it and define