473 lines
17 KiB
C
473 lines
17 KiB
C
/*
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* ntpd.h - Prototypes for ntpd.
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*/
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#include "ntp_syslog.h"
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#include "ntp_fp.h"
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#include "ntp.h"
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#include "ntp_debug.h"
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#include "ntp_select.h"
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#include "ntp_malloc.h"
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#include "ntp_refclock.h"
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#include "recvbuff.h"
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/* ntp_config.c */
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extern void getconfig P((int, char **));
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/* ntp_config.c */
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extern void ctl_clr_stats P((void));
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extern int ctlclrtrap P((struct sockaddr_storage *, struct interface *, int));
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extern u_short ctlpeerstatus P((struct peer *));
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extern int ctlsettrap P((struct sockaddr_storage *, struct interface *, int, int));
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extern u_short ctlsysstatus P((void));
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extern void init_control P((void));
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extern void process_control P((struct recvbuf *, int));
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extern void report_event P((int, struct peer *));
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extern double fabs P((double));
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extern double sqrt P((double));
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/* ntp_control.c */
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/*
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* Structure for translation tables between internal system
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* variable indices and text format.
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*/
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struct ctl_var {
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u_short code;
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u_short flags;
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char *text;
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};
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/*
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* Flag values
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*/
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#define CAN_READ 0x01
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#define CAN_WRITE 0x02
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#define DEF 0x20
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#define PADDING 0x40
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#define EOV 0x80
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#define RO (CAN_READ)
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#define WO (CAN_WRITE)
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#define RW (CAN_READ|CAN_WRITE)
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extern char * add_var P((struct ctl_var **, u_long, u_short));
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extern void free_varlist P((struct ctl_var *));
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extern void set_var P((struct ctl_var **, const char *, u_long, u_short));
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extern void set_sys_var P((const char *, u_long, u_short));
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/* ntp_intres.c */
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extern void ntp_res_name P((struct sockaddr_storage, u_short));
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extern void ntp_res_recv P((void));
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extern void ntp_intres P((void));
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/* ntp_io.c */
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typedef struct interface_info {
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struct interface *interface;
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u_char action;
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} interface_info_t;
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typedef void (*interface_receiver_t)(void *, interface_info_t *);
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extern volatile int disable_dynamic_updates;
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extern void interface_enumerate P((interface_receiver_t, void *));
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extern struct interface *findinterface P((struct sockaddr_storage *));
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extern struct interface *findbcastinter P((struct sockaddr_storage *));
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extern void enable_broadcast P((struct interface *, struct sockaddr_storage *));
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extern void enable_multicast_if P((struct interface *, struct sockaddr_storage *));
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extern void interface_dump P((struct interface *));
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extern void interface_update P((interface_receiver_t, void *));
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extern void init_io P((void));
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extern void input_handler P((l_fp *));
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extern void io_clr_stats P((void));
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extern void io_setbclient P((void));
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extern void io_unsetbclient P((void));
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extern void io_multicast_add P((struct sockaddr_storage));
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extern void io_multicast_del P((struct sockaddr_storage));
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extern void kill_asyncio P((int));
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extern void sendpkt P((struct sockaddr_storage *, struct interface *, int, struct pkt *, int));
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#ifdef DEBUG
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extern void collect_timing P((struct recvbuf *, const char *, int, l_fp *));
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#endif
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#ifdef HAVE_SIGNALED_IO
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extern void wait_for_signal P((void));
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extern void unblock_io_and_alarm P((void));
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extern void block_io_and_alarm P((void));
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#define UNBLOCK_IO_AND_ALARM() unblock_io_and_alarm()
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#define BLOCK_IO_AND_ALARM() block_io_and_alarm()
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#else
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#define UNBLOCK_IO_AND_ALARM()
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#define BLOCK_IO_AND_ALARM()
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#endif
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/* ntp_leap.c */
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extern void init_leap P((void));
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extern void leap_process P((void));
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extern int leap_setleap P((int, int));
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/*
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* there seems to be a bug in the IRIX 4 compiler which prevents
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* u_char from beeing used in prototyped functions.
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* This is also true AIX compiler.
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* So give up and define it to be int. WLJ
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*/
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extern int leap_actual P((int));
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/* ntp_loopfilter.c */
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extern void init_loopfilter P((void));
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extern int local_clock P((struct peer *, double));
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extern void adj_host_clock P((void));
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extern void loop_config P((int, double));
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extern void huffpuff P((void));
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extern u_long sys_clocktime;
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extern u_long sys_tai;
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/* ntp_monitor.c */
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extern void init_mon P((void));
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extern void mon_start P((int));
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extern void mon_stop P((int));
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extern int ntp_monitor P((struct recvbuf *));
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extern void ntp_monclearinterface P((struct interface *interface));
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/* ntp_peer.c */
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extern void init_peer P((void));
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extern struct peer *findexistingpeer P((struct sockaddr_storage *, struct peer *, int));
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extern struct peer *findpeer P((struct sockaddr_storage *, struct interface *, int, int *));
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extern struct peer *findpeerbyassoc P((u_int));
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extern void set_peerdstadr P((struct peer *peer, struct interface *interface));
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extern struct peer *newpeer P((struct sockaddr_storage *, struct interface *, int, int, int, int, u_int, u_char, int, keyid_t));
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extern void peer_all_reset P((void));
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extern void peer_clr_stats P((void));
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extern struct peer *peer_config P((struct sockaddr_storage *, struct interface *, int, int, int, int, u_int, int, keyid_t, u_char *));
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extern void peer_reset P((struct peer *));
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extern int peer_unconfig P((struct sockaddr_storage *, struct interface *, int));
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extern void refresh_all_peerinterfaces P((void));
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extern void unpeer P((struct peer *));
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extern void clear_all P((void));
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#ifdef OPENSSL
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extern void expire_all P((void));
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#endif /* OPENSSL */
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extern struct peer *findmanycastpeer P((struct recvbuf *));
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/* ntp_crypto.c */
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#ifdef OPENSSL
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extern int crypto_recv P((struct peer *, struct recvbuf *));
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extern int crypto_xmit P((struct pkt *, struct sockaddr_storage *, int, struct exten *, keyid_t));
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extern keyid_t session_key P((struct sockaddr_storage *, struct sockaddr_storage *, keyid_t, keyid_t, u_long));
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extern int make_keylist P((struct peer *, struct interface *));
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extern void key_expire P((struct peer *));
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extern void crypto_update P((void));
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extern void crypto_config P((int, char *));
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extern void crypto_setup P((void));
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extern u_int crypto_ident P((struct peer *));
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extern struct exten *crypto_args P((struct peer *, u_int, char *));
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extern int crypto_public P((struct peer *, u_char *, u_int));
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extern void value_free P((struct value *));
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extern char *iffpar_file;
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extern EVP_PKEY *iffpar_pkey;
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extern char *gqpar_file;
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extern EVP_PKEY *gqpar_pkey;
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extern char *mvpar_file;
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extern EVP_PKEY *mvpar_pkey;
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extern struct value tai_leap;
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#endif /* OPENSSL */
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/* ntp_proto.c */
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extern void transmit P((struct peer *));
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extern void receive P((struct recvbuf *));
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extern void peer_crypto_clear P((struct peer *peer));
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extern void peer_clear P((struct peer *, char *));
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extern void process_packet P((struct peer *, struct pkt *));
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extern void clock_select P((void));
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extern void kod_proto P((void));
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/*
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* there seems to be a bug in the IRIX 4 compiler which prevents
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* u_char from beeing used in prototyped functions.
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* This is also true AIX compiler.
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* So give up and define it to be int. WLJ
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*/
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extern void poll_update P((struct peer *, int));
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extern void clear P((struct peer *));
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extern void clock_filter P((struct peer *, double, double, double));
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extern void init_proto P((void));
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extern void proto_config P((int, u_long, double, struct sockaddr_storage*));
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extern void proto_clr_stats P((void));
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#ifdef REFCLOCK
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/* ntp_refclock.c */
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extern int refclock_newpeer P((struct peer *));
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extern void refclock_unpeer P((struct peer *));
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extern void refclock_receive P((struct peer *));
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extern void refclock_transmit P((struct peer *));
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extern void init_refclock P((void));
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#endif /* REFCLOCK */
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/* ntp_request.c */
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extern void init_request P((void));
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extern void process_private P((struct recvbuf *, int));
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/* ntp_restrict.c */
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extern void init_restrict P((void));
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extern int restrictions P((struct sockaddr_storage *, int));
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extern void hack_restrict P((int, struct sockaddr_storage *, struct sockaddr_storage *, int, int));
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/* ntp_timer.c */
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extern void init_timer P((void));
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extern void reinit_timer P((void));
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extern void timer P((void));
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extern void timer_clr_stats P((void));
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extern void timer_interfacetimeout P((u_long));
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extern volatile int interface_interval;
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#ifdef OPENSSL
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extern char *sys_hostname;
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extern l_fp sys_revoketime;
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#endif /* OPENSSL */
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/* ntp_util.c */
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extern void init_util P((void));
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extern void write_stats P((void));
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extern void stats_config P((int, const char *));
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extern void record_peer_stats P((struct sockaddr_storage *, int, double, double, double, double));
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extern void record_loop_stats P((double, double, double, double, int));
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extern void record_clock_stats P((struct sockaddr_storage *, const char *));
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extern void record_raw_stats P((struct sockaddr_storage *, struct sockaddr_storage *, l_fp *, l_fp *, l_fp *, l_fp *));
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extern void record_sys_stats P((void));
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extern void record_crypto_stats P((struct sockaddr_storage *, const char *));
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#ifdef DEBUG
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extern void record_timing_stats P((const char *));
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#endif
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extern int sock_hash P((struct sockaddr_storage *));
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extern double old_drift;
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/*
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* Variable declarations for ntpd.
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*/
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/* ntp_config.c */
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extern char const * progname;
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extern char *sys_phone[]; /* ACTS phone numbers */
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#if defined(HAVE_SCHED_SETSCHEDULER)
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extern int config_priority_override;
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extern int config_priority;
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#endif
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/* ntp_control.c */
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extern int num_ctl_traps;
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extern keyid_t ctl_auth_keyid; /* keyid used for authenticating write requests */
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/*
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* Statistic counters to keep track of requests and responses.
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*/
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extern u_long ctltimereset; /* time stats reset */
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extern u_long numctlreq; /* number of requests we've received */
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extern u_long numctlbadpkts; /* number of bad control packets */
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extern u_long numctlresponses; /* number of resp packets sent with data */
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extern u_long numctlfrags; /* number of fragments sent */
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extern u_long numctlerrors; /* number of error responses sent */
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extern u_long numctltooshort; /* number of too short input packets */
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extern u_long numctlinputresp; /* number of responses on input */
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extern u_long numctlinputfrag; /* number of fragments on input */
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extern u_long numctlinputerr; /* number of input pkts with err bit set */
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extern u_long numctlbadoffset; /* number of input pkts with nonzero offset */
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extern u_long numctlbadversion; /* number of input pkts with unknown version */
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extern u_long numctldatatooshort; /* data too short for count */
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extern u_long numctlbadop; /* bad op code found in packet */
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extern u_long numasyncmsgs; /* number of async messages we've sent */
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/* ntp_intres.c */
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extern keyid_t req_keyid; /* request keyid */
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extern char * req_file; /* name of the file with configuration info */
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#ifdef SYS_WINNT
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extern HANDLE ResolverEventHandle;
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#else
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extern int resolver_pipe_fd[2]; /* used to let the resolver process alert the parent process */
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#endif /* SYS_WINNT */
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/*
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* Other statistics of possible interest
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*/
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extern volatile u_long packets_dropped; /* total number of packets dropped on reception */
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extern volatile u_long packets_ignored; /* packets received on wild card interface */
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extern volatile u_long packets_received;/* total number of packets received */
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extern u_long packets_sent; /* total number of packets sent */
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extern u_long packets_notsent; /* total number of packets which couldn't be sent */
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extern volatile u_long handler_calls; /* number of calls to interrupt handler */
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extern volatile u_long handler_pkts; /* number of pkts received by handler */
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extern u_long io_timereset; /* time counters were reset */
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/*
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* Interface stuff
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*/
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extern struct interface *any_interface; /* default ipv4 interface */
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extern struct interface *any6_interface;/* default ipv6 interface */
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extern struct interface *loopback_interface; /* loopback interface */
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/*
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* File descriptor masks etc. for call to select
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*/
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extern fd_set activefds;
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extern int maxactivefd;
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/* ntp_loopfilter.c */
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extern double drift_comp; /* clock frequency (s/s) */
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extern double clock_stability; /* clock stability (s/s) */
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extern double clock_max; /* max offset before step (s) */
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extern double clock_panic; /* max offset before panic (s) */
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extern double clock_phi; /* dispersion rate (s/s) */
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extern double clock_minstep; /* step timeout (s) */
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extern u_long pps_control; /* last pps sample time */
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#ifdef KERNEL_PLL
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extern int pll_status; /* status bits for kernel pll */
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#endif /* KERNEL_PLL */
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/*
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* Clock state machine control flags
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*/
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extern int ntp_enable; /* clock discipline enabled */
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extern int pll_control; /* kernel support available */
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extern int kern_enable; /* kernel support enabled */
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extern int pps_enable; /* kernel PPS discipline enabled */
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extern int ext_enable; /* external clock enabled */
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extern int cal_enable; /* refclock calibrate enable */
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extern int allow_panic; /* allow panic correction */
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extern int mode_ntpdate; /* exit on first clock set */
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extern int peer_ntpdate; /* count of ntpdate peers */
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/*
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* Clock state machine variables
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*/
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extern u_char sys_poll; /* system poll interval (log2 s) */
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extern int state; /* clock discipline state */
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extern int tc_counter; /* poll-adjust counter */
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extern u_long last_time; /* time of last clock update (s) */
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extern double last_offset; /* last clock offset (s) */
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extern double allan_xpt; /* Allan intercept (s) */
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extern double clock_jitter; /* clock jitter (s) */
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extern double sys_jitter; /* system jitter (s) */
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/* ntp_monitor.c */
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extern struct mon_data mon_mru_list;
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extern struct mon_data mon_fifo_list;
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extern int mon_enabled;
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/* ntp_peer.c */
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extern struct peer *peer_hash[]; /* peer hash table */
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extern int peer_hash_count[]; /* count of peers in each bucket */
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extern struct peer *assoc_hash[]; /* association ID hash table */
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extern int assoc_hash_count[];
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extern int peer_free_count;
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/*
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* Miscellaneous statistic counters which may be queried.
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*/
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extern u_long peer_timereset; /* time stat counters were zeroed */
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extern u_long findpeer_calls; /* number of calls to findpeer */
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extern u_long assocpeer_calls; /* number of calls to findpeerbyassoc */
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extern u_long peer_allocations; /* number of allocations from the free list */
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extern u_long peer_demobilizations; /* number of structs freed to free list */
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extern int total_peer_structs; /* number of peer structs in circulation */
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extern int peer_associations; /* mobilized associations */
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extern int peer_preempt; /* preemptable associations */
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/* ntp_proto.c */
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/*
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* System variables are declared here. See Section 3.2 of the
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* specification.
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*/
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extern u_char sys_leap; /* system leap indicator */
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extern u_char sys_stratum; /* stratum of system */
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extern s_char sys_precision; /* local clock precision */
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extern double sys_rootdelay; /* distance to current sync source */
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extern double sys_rootdispersion; /* dispersion of system clock */
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extern u_int32 sys_refid; /* reference source for local clock */
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extern l_fp sys_reftime; /* time we were last updated */
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extern struct peer *sys_peer; /* our current peer */
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extern struct peer *sys_pps; /* our current PPS peer */
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extern struct peer *sys_prefer; /* our cherished peer */
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extern u_long sys_automax; /* maximum session key lifetime */
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/*
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* Nonspecified system state variables.
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*/
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extern int sys_bclient; /* we set our time to broadcasts */
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extern double sys_bdelay; /* broadcast client default delay */
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extern int sys_authenticate; /* requre authentication for config */
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extern l_fp sys_authdelay; /* authentication delay */
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extern keyid_t sys_private; /* private value for session seed */
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extern int sys_manycastserver; /* respond to manycast client pkts */
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extern int sys_minclock; /* minimum survivors */
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extern int sys_minsane; /* minimum candidates */
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extern int sys_floor; /* cluster stratum floor */
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extern int sys_ceiling; /* cluster stratum ceiling */
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extern u_char sys_ttl[]; /* ttl mapping vector */
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extern int sys_ttlmax; /* max ttl mapping vector index */
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extern int leap_next; /* leap consensus */
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/*
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* Statistics counters
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*/
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extern u_long sys_stattime; /* time when we started recording */
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extern u_long sys_restricted; /* restricted packets */
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extern u_long sys_oldversionpkt; /* old version packets */
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extern u_long sys_newversionpkt; /* new version packets */
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extern u_long sys_unknownversion; /* don't know version packets */
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extern u_long sys_badlength; /* bad length or format */
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extern u_long sys_processed; /* packets processed */
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extern u_long sys_badauth; /* bad authentication */
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extern u_long sys_limitrejected; /* rate limit exceeded */
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extern u_long sys_received; /* packets received */
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/* ntp_refclock.c */
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#ifdef REFCLOCK
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#ifdef PPS
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extern int fdpps; /* pps file descriptor */
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#endif /* PPS */
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#endif
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/* ntp_request.c */
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extern keyid_t info_auth_keyid; /* keyid used to authenticate requests */
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/* ntp_restrict.c */
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extern struct restrictlist *restrictlist; /* the ipv4 restriction list */
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extern struct restrictlist6 *restrictlist6; /* the ipv6 restriction list */
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extern u_long res_min_interval;
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extern u_long res_avg_interval;
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extern u_long mon_age; /* monitor preempt age */
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/* ntp_timer.c */
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extern volatile int alarm_flag; /* alarm flag */
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extern u_char sys_revoke; /* keys revoke timeout (log2 s) */
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extern volatile u_long alarm_overflow;
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extern u_long current_time; /* current time (s) */
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extern u_long timer_timereset;
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extern u_long timer_overflows;
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extern u_long timer_xmtcalls;
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/* ntp_util.c */
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extern int stats_control; /* write stats to fileset? */
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extern int stats_write_period; /* # of seconds between writes. */
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extern double stats_write_tolerance;
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/* ntpd.c */
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extern volatile int debug; /* debugging flag */
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extern int nofork; /* no-fork flag */
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extern int initializing; /* initializing flag */
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#ifdef HAVE_DROPROOT
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extern int droproot; /* flag: try to drop root privileges after startup */
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extern char *user; /* user to switch to */
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extern char *group; /* group to switch to */
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extern char *chrootdir; /* directory to chroot to */
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#endif
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/* refclock_conf.c */
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#ifdef REFCLOCK
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extern struct refclock *refclock_conf[]; /* refclock configuration table */
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extern u_char num_refclock_conf;
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#endif
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