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Annotation of embedaddon/ntp/sntp/networking.h, revision 1.1.1.1

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