external/bsd/ntp/dist/sntp/networking.h

   1 /*      $NetBSD$        */
   2
   3 #ifndef NETWORKING_H
   4 #define NETWORKING_H
   5
   6 #include <arpa/inet.h>
   7 #include <netinet/in.h>
   8
   9 #include <strings.h>
  10 #include <errno.h>
  11 #include <config.h>
  12 #include <netdb.h>
  13 #include <unistd.h>
  14 #include <sys/types.h>
  15 #include <sys/socket.h>
  16
  17 #include <ntp_rfc2553.h>
  18 #include <ntp_stdlib.h>
  19 #include <ntp_machine.h>
  20 #include <ntp_unixtime.h>
  21 #include <ntp_fp.h>
  22 #include <ntp.h>
  23
  24 #include "crypto.h"
  25 #include "log.h"
  26 #include "sntp-opts.h"
  27 #include "utilities.h"
  28
  29 /* FIXME To be replaced by the constants in ntp.h */
  30 #define SERVER_UNUSEABLE -1 /* Skip server */
  31 #define PACKET_UNUSEABLE -2 /* Discard packet and try to get a useable packet again if not tried too often */
  32 #define SERVER_AUTH_FAIL -3 /* Authentication failed, act upon settings */
  33 #define KOD_DEMOBILIZE -4   /* KOD packet with code DENY or RSTR, stop all communication and save KOD information */
  34 #define KOD_RATE -5         /* KOD packet with code RATE, reduce poll intervall */
  35 #define BROADCAST_FAILED -6
  36
  37
  38 /* From ntpdate.c */
  39 int is_reachable (struct addrinfo *dst);
  40
  41 int resolve_hosts (char **hosts, int hostc, struct addrinfo ***res, int pref_family);
  42
  43 void create_socket (SOCKET *rsock, sockaddr_u *dest);
  44
  45 void sendpkt (SOCKET rsock, sockaddr_u *dest, struct pkt *pkt, int len);
  46
  47 int recvdata (SOCKET rsock, sockaddr_u *sender, char *rdata, int rdata_len);
  48
  49 int recvpkt (SOCKET rsock, struct pkt *rpkt, struct pkt *spkt);
  50
  51 int recv_bcst_data (SOCKET rsock, char *rdata, int rdata_len, sockaddr_u *sas, sockaddr_u *ras);
  52
  53 int recv_bcst_pkt (SOCKET rsock, struct pkt *rpkt, sockaddr_u *sas);
  54
  55 /* Shortened peer structure. Not absolutely necessary yet */
  56 struct speer {
  57         struct speer *next;
  58         sockaddr_u srcadr;
  59         u_char version;
  60         u_char hmode;
  61         u_char hpoll;
  62         u_char minpoll;
  63         u_char maxpoll;
  64         u_int flags;
  65         u_char num_events;
  66         u_char ttl;
  67         u_char leap;
  68         u_char pmode;
  69         u_char stratum;
  70         u_char ppoll;
  71         u_char precision;       /* should be s_char */
  72         u_int32 refid;
  73         l_fp reftime;
  74         keyid_t keyid;
  75
  76 #ifdef OPENSSL
  77 #define clear_to_zero opcode
  78         u_int32 opcode;         /* last request opcode */
  79         associd_t assoc;        /* peer association ID */
  80         u_int32 crypto;         /* peer status word */
  81         EVP_PKEY *pkey;         /* public key */
  82         const EVP_MD *digest;   /* message digest algorithm */
  83         char    *subject;       /* certificate subject name */
  84         char    *issuer;        /* certificate issuer name */
  85         struct cert_info *xinfo; /* issuer certificate */
  86         keyid_t pkeyid;         /* previous key ID */
  87         keyid_t hcookie;        /* host cookie */
  88         keyid_t pcookie;        /* peer cookie */
  89         const struct pkey_info *ident_pkey; /* identity key */
  90         BIGNUM  *iffval;        /* identity challenge (IFF, GQ, MV) */
  91         const BIGNUM *grpkey;   /* identity challenge key (GQ) */
  92         struct value cookval;   /* receive cookie values */
  93         struct value recval;    /* receive autokey values */
  94         struct exten *cmmd;     /* extension pointer */
  95         u_long  refresh;        /* next refresh epoch */
  96
  97         /*
  98          * Variables used by authenticated server
  99          */
 100         keyid_t *keylist;       /* session key ID list */
 101         int     keynumber;      /* current key number */
 102         struct value encrypt;   /* send encrypt values */
 103         struct value sndval;    /* send autokey values */
 104 #else /* OPENSSL */
 105 #define clear_to_zero status
 106 #endif /* OPENSSL */
 107
 108         l_fp    rec;            /* receive time stamp */
 109         l_fp    xmt;            /* transmit time stamp */
 110         l_fp    dst;            /* destination timestamp */
 111         l_fp    aorg;           /* origin timestamp */
 112         l_fp    borg;           /* alternate origin timestamp */
 113         double  offset;         /* peer clock offset */
 114         double  delay;          /* peer roundtrip delay */
 115 };
 116
 117
 118
 119
 120
 121 #endif