111 lines
3.2 KiB
C
111 lines
3.2 KiB
C
#ifndef NETWORKING_H
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#define NETWORKING_H
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#include <arpa/inet.h>
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#include <netinet/in.h>
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#include <strings.h>
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#include <errno.h>
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#include <config.h>
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#include <netdb.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <sys/socket.h>
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#include <ntp_rfc2553.h>
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#include <ntp_stdlib.h>
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#include <ntp_machine.h>
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#include <ntp_unixtime.h>
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#include <ntp_fp.h>
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#include <ntp.h>
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#include "crypto.h"
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#include "log.h"
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#include "sntp-opts.h"
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#include "utilities.h"
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/* FIXME To be replaced by the constants in ntp.h */
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#define SERVER_UNUSEABLE -1 /* Skip server */
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#define PACKET_UNUSEABLE -2 /* Discard packet and try to get a useable packet again if not tried too often */
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#define SERVER_AUTH_FAIL -3 /* Authentication failed, act upon settings */
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#define KOD_DEMOBILIZE -4 /* KOD packet with code DENY or RSTR, stop all communication and save KOD information */
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#define KOD_RATE -5 /* KOD packet with code RATE, reduce poll intervall */
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#define BROADCAST_FAILED -6
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/* prototypes */
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int sendpkt(SOCKET rsock, sockaddr_u *dest, struct pkt *pkt, int len);
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int recvdata(SOCKET rsock, sockaddr_u *sender, void *rdata,
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int rdata_len);
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int recvpkt(SOCKET rsock, struct pkt *rpkt, unsigned int rsize,
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struct pkt *spkt);
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int process_pkt(struct pkt *rpkt, sockaddr_u *sas, int pkt_len,
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int mode, struct pkt *spkt, const char *func_name);
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/* Shortened peer structure. Not absolutely necessary yet */
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struct speer {
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struct speer *next;
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sockaddr_u srcadr;
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u_char version;
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u_char hmode;
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u_char hpoll;
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u_char minpoll;
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u_char maxpoll;
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u_int flags;
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u_char num_events;
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u_char ttl;
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u_char leap;
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u_char pmode;
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u_char stratum;
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u_char ppoll;
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u_char precision; /* should be s_char */
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u_int32 refid;
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l_fp reftime;
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keyid_t keyid;
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#ifdef AUTOKEY
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#define clear_to_zero opcode
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u_int32 opcode; /* last request opcode */
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associd_t assoc; /* peer association ID */
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u_int32 crypto; /* peer status word */
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EVP_PKEY *pkey; /* public key */
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const EVP_MD *digest; /* message digest algorithm */
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char *subject; /* certificate subject name */
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char *issuer; /* certificate issuer name */
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struct cert_info *xinfo; /* issuer certificate */
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keyid_t pkeyid; /* previous key ID */
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keyid_t hcookie; /* host cookie */
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keyid_t pcookie; /* peer cookie */
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const struct pkey_info *ident_pkey; /* identity key */
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BIGNUM *iffval; /* identity challenge (IFF, GQ, MV) */
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const BIGNUM *grpkey; /* identity challenge key (GQ) */
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struct value cookval; /* receive cookie values */
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struct value recval; /* receive autokey values */
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struct exten *cmmd; /* extension pointer */
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u_long refresh; /* next refresh epoch */
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/*
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* Variables used by authenticated server
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*/
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keyid_t *keylist; /* session key ID list */
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int keynumber; /* current key number */
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struct value encrypt; /* send encrypt values */
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struct value sndval; /* send autokey values */
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#else /* !AUTOKEY follows */
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#define clear_to_zero status
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#endif /* !AUTOKEY */
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l_fp rec; /* receive time stamp */
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l_fp xmt; /* transmit time stamp */
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l_fp dst; /* destination timestamp */
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l_fp aorg; /* origin timestamp */
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l_fp borg; /* alternate origin timestamp */
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double offset; /* peer clock offset */
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double delay; /* peer roundtrip delay */
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};
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#endif
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