mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-09-05 18:39:59 +00:00
![David Howells](/assets/img/avatar_default.png)
Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Michael Kerrisk <mtk.manpages@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com>
92 lines
2.2 KiB
C
92 lines
2.2 KiB
C
#ifndef _XT_SCTP_H_
|
|
#define _XT_SCTP_H_
|
|
|
|
#include <linux/types.h>
|
|
|
|
#define XT_SCTP_SRC_PORTS 0x01
|
|
#define XT_SCTP_DEST_PORTS 0x02
|
|
#define XT_SCTP_CHUNK_TYPES 0x04
|
|
|
|
#define XT_SCTP_VALID_FLAGS 0x07
|
|
|
|
struct xt_sctp_flag_info {
|
|
__u8 chunktype;
|
|
__u8 flag;
|
|
__u8 flag_mask;
|
|
};
|
|
|
|
#define XT_NUM_SCTP_FLAGS 4
|
|
|
|
struct xt_sctp_info {
|
|
__u16 dpts[2]; /* Min, Max */
|
|
__u16 spts[2]; /* Min, Max */
|
|
|
|
__u32 chunkmap[256 / sizeof (__u32)]; /* Bit mask of chunks to be matched according to RFC 2960 */
|
|
|
|
#define SCTP_CHUNK_MATCH_ANY 0x01 /* Match if any of the chunk types are present */
|
|
#define SCTP_CHUNK_MATCH_ALL 0x02 /* Match if all of the chunk types are present */
|
|
#define SCTP_CHUNK_MATCH_ONLY 0x04 /* Match if these are the only chunk types present */
|
|
|
|
__u32 chunk_match_type;
|
|
struct xt_sctp_flag_info flag_info[XT_NUM_SCTP_FLAGS];
|
|
int flag_count;
|
|
|
|
__u32 flags;
|
|
__u32 invflags;
|
|
};
|
|
|
|
#define bytes(type) (sizeof(type) * 8)
|
|
|
|
#define SCTP_CHUNKMAP_SET(chunkmap, type) \
|
|
do { \
|
|
(chunkmap)[type / bytes(__u32)] |= \
|
|
1 << (type % bytes(__u32)); \
|
|
} while (0)
|
|
|
|
#define SCTP_CHUNKMAP_CLEAR(chunkmap, type) \
|
|
do { \
|
|
(chunkmap)[type / bytes(__u32)] &= \
|
|
~(1 << (type % bytes(__u32))); \
|
|
} while (0)
|
|
|
|
#define SCTP_CHUNKMAP_IS_SET(chunkmap, type) \
|
|
({ \
|
|
((chunkmap)[type / bytes (__u32)] & \
|
|
(1 << (type % bytes (__u32)))) ? 1: 0; \
|
|
})
|
|
|
|
#define SCTP_CHUNKMAP_RESET(chunkmap) \
|
|
memset((chunkmap), 0, sizeof(chunkmap))
|
|
|
|
#define SCTP_CHUNKMAP_SET_ALL(chunkmap) \
|
|
memset((chunkmap), ~0U, sizeof(chunkmap))
|
|
|
|
#define SCTP_CHUNKMAP_COPY(destmap, srcmap) \
|
|
memcpy((destmap), (srcmap), sizeof(srcmap))
|
|
|
|
#define SCTP_CHUNKMAP_IS_CLEAR(chunkmap) \
|
|
__sctp_chunkmap_is_clear((chunkmap), ARRAY_SIZE(chunkmap))
|
|
static inline bool
|
|
__sctp_chunkmap_is_clear(const __u32 *chunkmap, unsigned int n)
|
|
{
|
|
unsigned int i;
|
|
for (i = 0; i < n; ++i)
|
|
if (chunkmap[i])
|
|
return false;
|
|
return true;
|
|
}
|
|
|
|
#define SCTP_CHUNKMAP_IS_ALL_SET(chunkmap) \
|
|
__sctp_chunkmap_is_all_set((chunkmap), ARRAY_SIZE(chunkmap))
|
|
static inline bool
|
|
__sctp_chunkmap_is_all_set(const __u32 *chunkmap, unsigned int n)
|
|
{
|
|
unsigned int i;
|
|
for (i = 0; i < n; ++i)
|
|
if (chunkmap[i] != ~0U)
|
|
return false;
|
|
return true;
|
|
}
|
|
|
|
#endif /* _XT_SCTP_H_ */
|
|
|