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File: //lib/modules/3.10.0-1160.49.1.el7.x86_64/source/include/net/secure_seq.h
#ifndef _NET_SECURE_SEQ
#define _NET_SECURE_SEQ

#include <linux/types.h>

extern u32 secure_ipv4_port_ephemeral(__be32 saddr, __be32 daddr, __be16 dport);
extern u32 secure_ipv6_port_ephemeral(const __be32 *saddr, const __be32 *daddr,
				      __be16 dport);
extern __u32 secure_tcp_sequence_number(__be32 saddr, __be32 daddr,
					__be16 sport, __be16 dport);
extern __u32 secure_tcpv6_sequence_number(const __be32 *saddr, const __be32 *daddr,
					  __be16 sport, __be16 dport);
extern u64 secure_dccp_sequence_number(__be32 saddr, __be32 daddr,
				       __be16 sport, __be16 dport);
extern u64 secure_dccpv6_sequence_number(__be32 *saddr, __be32 *daddr,
					 __be16 sport, __be16 dport);

static inline u32
secure_tcp_seq(__be32 saddr, __be32 daddr, __be16 sport, __be16 dport)
{
	return secure_tcp_sequence_number(saddr, daddr, sport, dport);
}

static inline u32
secure_tcpv6_seq(const __be32 *saddr, const __be32 *daddr,
		 __be16 sport, __be16 dport)
{
	return secure_tcpv6_sequence_number(saddr, daddr, sport, dport);
}
#endif /* _NET_SECURE_SEQ */