1/*	$NetBSD: networking.h,v 1.3 2012/02/01 07:46:23 kardel Exp $	*/
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/*
30 * for 4.2.6 only define AUTOKEY if OPENSSL, so that backported 4.2.7
31 * references to AUTOKEY work -- in 4.2.7 AUTOKEY is independent of OPENSSL
32 */
33#ifdef OPENSSL
34#define AUTOKEY
35#endif
36
37/* FIXME To be replaced by the constants in ntp.h */
38#define SERVER_UNUSEABLE -1 /* Skip server */
39#define PACKET_UNUSEABLE -2 /* Discard packet and try to get a useable packet again if not tried too often */
40#define SERVER_AUTH_FAIL -3 /* Authentication failed, act upon settings */
41#define KOD_DEMOBILIZE -4   /* KOD packet with code DENY or RSTR, stop all communication and save KOD information */
42#define KOD_RATE -5	    /* KOD packet with code RATE, reduce poll intervall */
43#define BROADCAST_FAILED -6
44
45
46/* From ntpdate.c */
47int is_reachable (struct addrinfo *dst);
48
49int resolve_hosts (const char **hosts, int hostc, struct addrinfo ***res, int pref_family);
50
51void create_socket (SOCKET *rsock, sockaddr_u *dest);
52
53void sendpkt (SOCKET rsock, sockaddr_u *dest, struct pkt *pkt, int len);
54
55int recvdata (SOCKET rsock, sockaddr_u *sender, char *rdata, int rdata_len);
56
57int recvpkt (SOCKET rsock, struct pkt *rpkt, unsigned int rsize, struct pkt *spkt);
58
59int recv_bcst_data (SOCKET rsock, char *rdata, int rdata_len, sockaddr_u *sas, sockaddr_u *ras);
60
61int recv_bcst_pkt (SOCKET rsock, struct pkt *rpkt, unsigned int rsize, sockaddr_u *sas);
62
63int process_pkt (struct pkt *rpkt, sockaddr_u *sas,	int pkt_len, int mode, struct pkt *spkt, const char * func_name);
64
65/* Shortened peer structure. Not absolutely necessary yet */
66struct speer {
67	struct speer *next;
68	sockaddr_u srcadr;
69	u_char version;
70	u_char hmode;
71	u_char hpoll;
72	u_char minpoll;
73	u_char maxpoll;
74	u_int flags;
75	u_char num_events;
76	u_char ttl;
77	u_char leap;
78	u_char pmode;
79	u_char stratum;
80	u_char ppoll;
81	u_char precision;	/* should be s_char */
82	u_int32 refid;
83	l_fp reftime;
84	keyid_t keyid;
85
86#ifdef AUTOKEY
87#define clear_to_zero opcode
88	u_int32	opcode;		/* last request opcode */
89	associd_t assoc;	/* peer association ID */
90	u_int32	crypto;		/* peer status word */
91	EVP_PKEY *pkey;		/* public key */
92	const EVP_MD *digest;	/* message digest algorithm */
93	char	*subject;	/* certificate subject name */
94	char	*issuer;	/* certificate issuer name */
95	struct cert_info *xinfo; /* issuer certificate */
96	keyid_t	pkeyid;		/* previous key ID */
97	keyid_t	hcookie;	/* host cookie */
98	keyid_t	pcookie;	/* peer cookie */
99	const struct pkey_info *ident_pkey; /* identity key */
100	BIGNUM	*iffval;	/* identity challenge (IFF, GQ, MV) */
101	const BIGNUM *grpkey;	/* identity challenge key (GQ) */
102	struct value cookval;	/* receive cookie values */
103	struct value recval;	/* receive autokey values */
104	struct exten *cmmd;	/* extension pointer */
105	u_long	refresh;	/* next refresh epoch */
106
107	/*
108	 * Variables used by authenticated server
109	 */
110	keyid_t	*keylist;	/* session key ID list */
111	int	keynumber;	/* current key number */
112	struct value encrypt;	/* send encrypt values */
113	struct value sndval;	/* send autokey values */
114#else	/* !AUTOKEY follows */
115#define clear_to_zero status
116#endif	/* !AUTOKEY */
117
118	l_fp	rec;		/* receive time stamp */
119	l_fp	xmt;		/* transmit time stamp */
120	l_fp	dst;		/* destination timestamp */
121	l_fp	aorg;		/* origin timestamp */
122	l_fp	borg;		/* alternate origin timestamp */
123	double	offset;		/* peer clock offset */
124	double	delay;		/* peer roundtrip delay */
125};
126
127
128
129
130
131#endif
132