networking.h revision 290001 
1#ifndef NETWORKING_H
2#define NETWORKING_H
3
4#include <arpa/inet.h>
5#include <netinet/in.h>
6
7#include <strings.h>
8#include <errno.h>
9#include <config.h>
10#include <netdb.h>
11#include <unistd.h>
12#include <sys/types.h>
13#include <sys/socket.h>
14
15#include <ntp_rfc2553.h>
16#include <ntp_stdlib.h>
17#include <ntp_machine.h>
18#include <ntp_unixtime.h>
19#include <ntp_fp.h>
20#include <ntp.h>
21
22#include "crypto.h"
23#include "log.h"
24#include "sntp-opts.h"
25#include "utilities.h"
26
27/* FIXME To be replaced by the constants in ntp.h */
28#define SERVER_UNUSEABLE -1 /* Skip server */
29#define PACKET_UNUSEABLE -2 /* Discard packet and try to get a useable packet again if not tried too often */
30#define SERVER_AUTH_FAIL -3 /* Authentication failed, act upon settings */
31#define KOD_DEMOBILIZE -4   /* KOD packet with code DENY or RSTR, stop all communication and save KOD information */
32#define KOD_RATE -5	    /* KOD packet with code RATE, reduce poll intervall */
33#define BROADCAST_FAILED -6
34
35/* prototypes */
36int sendpkt(SOCKET rsock, sockaddr_u *dest, struct pkt *pkt, int len);
37int recvdata(SOCKET rsock, sockaddr_u *sender, void *rdata,
38	     int rdata_len);
39int recvpkt(SOCKET rsock, struct pkt *rpkt, unsigned int rsize,
40	    struct pkt *spkt);
41int process_pkt(struct pkt *rpkt, sockaddr_u *sas, int pkt_len,
42		int mode, struct pkt *spkt, const char *func_name);
43
44/* Shortened peer structure. Not absolutely necessary yet */
45struct speer {
46	struct speer *next;
47	sockaddr_u srcadr;
48	u_char version;
49	u_char hmode;
50	u_char hpoll;
51	u_char minpoll;
52	u_char maxpoll;
53	u_int flags;
54	u_char num_events;
55	u_char ttl;
56	u_char leap;
57	u_char pmode;
58	u_char stratum;
59	u_char ppoll;
60	u_char precision;	/* should be s_char */
61	u_int32 refid;
62	l_fp reftime;
63	keyid_t keyid;
64
65#ifdef AUTOKEY
66#define clear_to_zero opcode
67	u_int32	opcode;		/* last request opcode */
68	associd_t assoc;	/* peer association ID */
69	u_int32	crypto;		/* peer status word */
70	EVP_PKEY *pkey;		/* public key */
71	const EVP_MD *digest;	/* message digest algorithm */
72	char	*subject;	/* certificate subject name */
73	char	*issuer;	/* certificate issuer name */
74	struct cert_info *xinfo; /* issuer certificate */
75	keyid_t	pkeyid;		/* previous key ID */
76	keyid_t	hcookie;	/* host cookie */
77	keyid_t	pcookie;	/* peer cookie */
78	const struct pkey_info *ident_pkey; /* identity key */
79	BIGNUM	*iffval;	/* identity challenge (IFF, GQ, MV) */
80	const BIGNUM *grpkey;	/* identity challenge key (GQ) */
81	struct value cookval;	/* receive cookie values */
82	struct value recval;	/* receive autokey values */
83	struct exten *cmmd;	/* extension pointer */
84	u_long	refresh;	/* next refresh epoch */
85
86	/*
87	 * Variables used by authenticated server
88	 */
89	keyid_t	*keylist;	/* session key ID list */
90	int	keynumber;	/* current key number */
91	struct value encrypt;	/* send encrypt values */
92	struct value sndval;	/* send autokey values */
93#else	/* !AUTOKEY follows */
94#define clear_to_zero status
95#endif	/* !AUTOKEY */
96
97	l_fp	rec;		/* receive time stamp */
98	l_fp	xmt;		/* transmit time stamp */
99	l_fp	dst;		/* destination timestamp */
100	l_fp	aorg;		/* origin timestamp */
101	l_fp	borg;		/* alternate origin timestamp */
102	double	offset;		/* peer clock offset */
103	double	delay;		/* peer roundtrip delay */
104};
105
106
107
108
109
110#endif
111