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Annotation of researchv9/sys/net/arpld.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Address resolution
        !             3:  */
        !             4: 
        !             5: #ifndef _ARP_
        !             6: #define _ARP_
        !             7: 
        !             8: #define MAX_HARDSIZE     6
        !             9: #define MAX_PRSIZE       4
        !            10: 
        !            11: struct ether_arp {
        !            12:        u_short arp_hrd;
        !            13: #define ARPHRD_ETHER   1
        !            14:        u_short arp_pro;
        !            15:        u_char  arp_hln;
        !            16:        u_char  arp_pln;
        !            17:        u_short arp_op;
        !            18: #define ARPOP_REQUEST  1
        !            19: #define ARPOP_REPLY    2
        !            20:        u_char  arp_addr[2 * (MAX_HARDSIZE + MAX_PRSIZE)];
        !            21: };
        !            22: 
        !            23: static u_char broadaddr[MAX_HARDSIZE] = {
        !            24:        0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
        !            25: };
        !            26: 
        !            27: struct arp {
        !            28:      u_char    paddr[MAX_PRSIZE];
        !            29:      u_char    hdaddr[MAX_HARDSIZE];
        !            30:      unsigned  time;
        !            31: };
        !            32: 
        !            33: static u_char  pzero[MAX_PRSIZE];
        !            34: static u_char  hzero[MAX_HARDSIZE];
        !            35: 
        !            36: #define NPROTO 2
        !            37: #define NPAIR  30
        !            38: 
        !            39: struct arp_dev {
        !            40:      dev_t          pdev;
        !            41:      struct queue   *rdq;
        !            42:      u_char        hdaddr[MAX_HARDSIZE];
        !            43:      int           delim_count;
        !            44: };
        !            45: 
        !            46: struct proto {
        !            47:      struct arp_dev *ptr;
        !            48:      u_short        type;
        !            49:      u_char         psize;
        !            50:      u_char         phfirst;
        !            51:      struct arp     pair[NPAIR];
        !            52: };
        !            53: 
        !            54: #ifndef CHANS_PER_UNIT
        !            55: #define CHANS_PER_UNIT   8
        !            56: #endif
        !            57: 
        !            58: #define physical(dev)    ((dev) & ~(CHANS_PER_UNIT - 1))
        !            59: 
        !            60: #endif

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