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       1  /* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
       2  #ifndef __LINUX_ATALK_H__
       3  #define __LINUX_ATALK_H__
       4  
       5  #include <linux/types.h>
       6  #include <asm/byteorder.h>
       7  #include <linux/socket.h>
       8  
       9  /*
      10   * AppleTalk networking structures
      11   *
      12   * The following are directly referenced from the University Of Michigan
      13   * netatalk for compatibility reasons.
      14   */
      15  #define ATPORT_FIRST	1
      16  #define ATPORT_RESERVED	128
      17  #define ATPORT_LAST	254		/* 254 is only legal on localtalk */ 
      18  #define ATADDR_ANYNET	(__u16)0
      19  #define ATADDR_ANYNODE	(__u8)0
      20  #define ATADDR_ANYPORT  (__u8)0
      21  #define ATADDR_BCAST	(__u8)255
      22  #define DDP_MAXSZ	587
      23  #define DDP_MAXHOPS     15		/* 4 bits of hop counter */
      24  
      25  #define SIOCATALKDIFADDR       (SIOCPROTOPRIVATE + 0)
      26  
      27  struct atalk_addr {
      28  	__be16	s_net;
      29  	__u8	s_node;
      30  };
      31  
      32  struct sockaddr_at {
      33  	__kernel_sa_family_t sat_family;
      34  	__u8		  sat_port;
      35  	struct atalk_addr sat_addr;
      36  	char		  sat_zero[8];
      37  };
      38  
      39  struct atalk_netrange {
      40  	__u8	nr_phase;
      41  	__be16	nr_firstnet;
      42  	__be16	nr_lastnet;
      43  };
      44  
      45  #endif /* __LINUX_ATALK_H__ */