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       1  /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
       2  #ifndef _LINUX_IPSEC_H
       3  #define _LINUX_IPSEC_H
       4  
       5  /* The definitions, required to talk to KAME racoon IKE. */
       6  
       7  #include <linux/pfkeyv2.h>
       8  
       9  #define IPSEC_PORT_ANY		0
      10  #define IPSEC_ULPROTO_ANY	255
      11  #define IPSEC_PROTO_ANY		255
      12  
      13  enum {
      14  	IPSEC_MODE_ANY		= 0,	/* We do not support this for SA */
      15  	IPSEC_MODE_TRANSPORT	= 1,
      16  	IPSEC_MODE_TUNNEL	= 2,
      17  	IPSEC_MODE_BEET         = 3
      18  };
      19  
      20  enum {
      21  	IPSEC_DIR_ANY		= 0,
      22  	IPSEC_DIR_INBOUND	= 1,
      23  	IPSEC_DIR_OUTBOUND	= 2,
      24  	IPSEC_DIR_FWD		= 3,	/* It is our own */
      25  	IPSEC_DIR_MAX		= 4,
      26  	IPSEC_DIR_INVALID	= 5
      27  };
      28  
      29  enum {
      30  	IPSEC_POLICY_DISCARD	= 0,
      31  	IPSEC_POLICY_NONE	= 1,
      32  	IPSEC_POLICY_IPSEC	= 2,
      33  	IPSEC_POLICY_ENTRUST	= 3,
      34  	IPSEC_POLICY_BYPASS	= 4
      35  };
      36  
      37  enum {
      38  	IPSEC_LEVEL_DEFAULT	= 0,
      39  	IPSEC_LEVEL_USE		= 1,
      40  	IPSEC_LEVEL_REQUIRE	= 2,
      41  	IPSEC_LEVEL_UNIQUE	= 3
      42  };
      43  
      44  #define IPSEC_MANUAL_REQID_MAX	0x3fff
      45  
      46  #define IPSEC_REPLAYWSIZE  32
      47  
      48  #endif	/* _LINUX_IPSEC_H */