1 /* $NetBSD: networking.h,v 1.4 2012/02/01 20:48:01 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 */ 47 int is_reachable (struct addrinfo *dst); 48 49 int resolve_hosts (const char **hosts, int hostc, struct addrinfo ***res, int pref_family); 50 51 void create_socket (SOCKET *rsock, sockaddr_u *dest); 52 53 void sendpkt (SOCKET rsock, sockaddr_u *dest, struct pkt *pkt, int len); 54 55 int recvdata (SOCKET rsock, sockaddr_u *sender, char *rdata, int rdata_len); 56 57 int recvpkt (SOCKET rsock, struct pkt *rpkt, unsigned int rsize, struct pkt *spkt); 58 59 int recv_bcst_data (SOCKET rsock, char *rdata, int rdata_len, sockaddr_u *sas, sockaddr_u *ras); 60 61 int recv_bcst_pkt (SOCKET rsock, struct pkt *rpkt, unsigned int rsize, sockaddr_u *sas); 62 63 int 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 */ 66 struct 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