pppd.h

开放源码实时操作系统源码.

				/* check authentication options supplied */
void auth_reset __P((int));	/* check what secrets we have */
int  check_passwd __P((int, char *, int, char *, int, char **, int *));
				/* Check peer-supplied username/password */
int  get_secret __P((int, char *, char *, char *, int *, int));
				/* get "secret" for chap */
int  auth_ip_addr __P((int, u_int32_t));
				/* check if IP address is authorized */
int  bad_ip_adrs __P((u_int32_t));
				/* check if IP address is unreasonable */
void check_access __P((FILE *, char *));
				/* check permissions on secrets file */

/* Procedures exported from demand.c */
void demand_conf __P((void));	/* config interface(s) for demand-dial */
void demand_block __P((void));	/* set all NPs to queue up packets */
void demand_unblock __P((void)); /* set all NPs to pass packets */
void demand_discard __P((void)); /* set all NPs to discard packets */
void demand_rexmit __P((int));	/* retransmit saved frames for an NP */
int  loop_chars __P((unsigned char *, int)); /* process chars from loopback */
int  loop_frame __P((unsigned char *, int)); /* process frame from loopback */

/* Procedures exported from sys-*.c */
void sys_init __P((void));	/* Do system-dependent initialization */
void sys_cleanup __P((void));	/* Restore system state before exiting */
void sys_check_options __P((void)); /* Check options specified */
void sys_close __P((void));	/* Clean up in a child before execing */
int  ppp_available __P((void));	/* Test whether ppp kernel support exists */
void open_ppp_loopback __P((void)); /* Open loopback for demand-dialling */
void establish_ppp __P((cyg_io_handle_t));	/* Turn serial port into a ppp interface */
void restore_loop __P((void));	/* Transfer ppp unit back to loopback */
void disestablish_ppp __P((cyg_io_handle_t)); /* Restore port to normal operation */
void clean_check __P((void));	/* Check if line was 8-bit clean */
void set_up_tty __P((cyg_io_handle_t, int)); /* Set up port's speed, parameters, etc. */
void restore_tty __P((cyg_io_handle_t));	/* Restore port's original parameters */
void setdtr __P((int, int));	/* Raise or lower port's DTR line */
void output __P((int, u_char *, int)); /* Output a PPP packet */
void wait_input __P((struct timeval *));
				/* Wait for input, with timeout */
void wait_loop_output __P((struct timeval *));
				/* Wait for pkt from loopback, with timeout */
void wait_time __P((struct timeval *)); /* Wait for given length of time */
int  read_packet __P((u_char *)); /* Read PPP packet */
int  get_loop_output __P((void)); /* Read pkts from loopback */
void ppp_send_config __P((int, int, u_int32_t, int, int));
				/* Configure i/f transmit parameters */
void ppp_set_xaccm __P((int, ext_accm));
				/* Set extended transmit ACCM */
void ppp_recv_config __P((int, int, u_int32_t, int, int));
				/* Configure i/f receive parameters */
int  ccp_test __P((int, u_char *, int, int));
				/* Test support for compression scheme */
void ccp_flags_set __P((int, int, int));
				/* Set kernel CCP state */
int  ccp_fatal_error __P((int)); /* Test for fatal decomp error in kernel */
int  get_idle_time __P((int, struct ppp_idle *));
				/* Find out how long link has been idle */
int  sifvjcomp __P((int, int, int, int));
				/* Configure VJ TCP header compression */
int  sifup __P((int));		/* Configure i/f up (for IP) */
int  sifnpmode __P((int u, int proto, enum NPmode mode));
				/* Set mode for handling packets for proto */
int  sifdown __P((int));	/* Configure i/f down (for IP) */
int  sifaddr __P((int, u_int32_t, u_int32_t, u_int32_t));
				/* Configure IP addresses for i/f */
int  cifaddr __P((int, u_int32_t, u_int32_t));
				/* Reset i/f IP addresses */
int  sifdefaultroute __P((int, u_int32_t, u_int32_t));
				/* Create default route through i/f */
int  cifdefaultroute __P((int, u_int32_t, u_int32_t));
				/* Delete default route through i/f */
int  sifproxyarp __P((int, u_int32_t));
				/* Add proxy ARP entry for peer */
int  cifproxyarp __P((int, u_int32_t));
				/* Delete proxy ARP entry for peer */
u_int32_t GetMask __P((u_int32_t)); /* Get appropriate netmask for address */
int  lock __P((char *));	/* Create lock file for device */
void unlock __P((void));	/* Delete previously-created lock file */
int  daemon __P((int, int));	/* Detach us from terminal session */
void logwtmp __P((const char *, const char *, const char *));
				/* Write entry to wtmp file */
int  get_host_seed __P((void));	/* Get host-dependent random number seed */
#ifdef PPP_FILTER
int  set_filters __P((struct bpf_program *pass, struct bpf_program *active));
				/* Set filter programs in kernel */
#endif

/* Procedures exported from options.c */
int  parse_args __P((int argc, char **argv));
				/* Parse options from arguments given */
void usage __P((void));		/* Print a usage message */
int  options_from_file __P((char *filename, int must_exist, int check_prot,
			    int privileged));
				/* Parse options from an options file */
int  options_from_user __P((void)); /* Parse options from user's .ppprc */
int  options_for_tty __P((void)); /* Parse options from /etc/ppp/options.tty */
void scan_args __P((int argc, char **argv));
				/* Look for tty name in command-line args */
int  getword __P((FILE *f, char *word, int *newlinep, char *filename));
				/* Read a word from a file */
void option_error __P((char *fmt, ...));
				/* Print an error message about an option */
int setipaddr __P((char *));	/* set IP addresses */
int gettimeofday __P((struct timeval *tv, struct timezone *tz));


/*
 * This structure is used to store information about certain
 * options, such as where the option value came from (/etc/ppp/options,
 * command line, etc.) and whether it came from a privileged source.
 */

struct option_info {
    int	    priv;		/* was value set by sysadmin? */
    char    *source;		/* where option came from */
};

extern struct option_info auth_req_info;
extern struct option_info connector_info;
extern struct option_info disconnector_info;
extern struct option_info welcomer_info;
extern struct option_info devnam_info;

/*
 * Inline versions of get/put char/short/long.
 * Pointer is advanced; we assume that both arguments
 * are lvalues and will already be in registers.
 * cp MUST be u_char *.
 */
#define GETCHAR(c, cp) { \
	(c) = *(cp)++; \
}
#define PUTCHAR(c, cp) { \
	*(cp)++ = (u_char) (c); \
}


#define GETSHORT(s, cp) { \
	(s) = *(cp)++ << 8; \
	(s) |= *(cp)++; \
}
#define PUTSHORT(s, cp) { \
	*(cp)++ = (u_char) ((s) >> 8); \
	*(cp)++ = (u_char) (s); \
}

#define GETLONG(l, cp) { \
	(l) = *(cp)++ << 8; \
	(l) |= *(cp)++; (l) <<= 8; \
	(l) |= *(cp)++; (l) <<= 8; \
	(l) |= *(cp)++; \
}
#define PUTLONG(l, cp) { \
	*(cp)++ = (u_char) ((l) >> 24); \
	*(cp)++ = (u_char) ((l) >> 16); \
	*(cp)++ = (u_char) ((l) >> 8); \
	*(cp)++ = (u_char) (l); \
}

#define INCPTR(n, cp)	((cp) += (n))
#define DECPTR(n, cp)	((cp) -= (n))

#undef  FALSE
#define FALSE	0
#undef  TRUE
#define TRUE	1

/*
 * System dependent definitions for user-level 4.3BSD UNIX implementation.
 */

#define DEMUXPROTREJ(u, p)	demuxprotrej(u, p)

#define TIMEOUT(r, f, t)	cyg_ppp_timeout((r), (f), (t))
#define UNTIMEOUT(r, f)		cyg_ppp_untimeout((r), (f))

#define BCOPY(s, d, l)		memcpy(d, s, l)
#define BZERO(s, n)		memset(s, 0, n)
#define EXIT(u)			quit()

#define PRINTMSG(m, l)	{ m[l] = '\0'; syslog(LOG_INFO, "Remote message: %s", m); }

/*
 * MAKEHEADER - Add Header fields to a packet.
 */
#define MAKEHEADER(p, t) { \
    PUTCHAR(PPP_ALLSTATIONS, p); \
    PUTCHAR(PPP_UI, p); \
    PUTSHORT(t, p); }

//#define DEBUGALL

#ifdef DEBUGALL
#define DEBUGMAIN	1
#define DEBUGFSM	1
#define DEBUGLCP	1
#define DEBUGIPCP	1
#define DEBUGUPAP	1
#define DEBUGCHAP	1
#endif

#ifndef LOG_PPP			/* we use LOG_LOCAL2 for syslog by default */
#if defined(DEBUGMAIN) || defined(DEBUGFSM) || defined(DEBUGSYS) \
  || defined(DEBUGLCP) || defined(DEBUGIPCP) || defined(DEBUGUPAP) \
  || defined(DEBUGCHAP) || defined(DEBUG)
#define LOG_PPP LOG_LOCAL2
#else
#define LOG_PPP LOG_DAEMON
#endif
#endif /* LOG_PPP */

#ifdef DEBUGMAIN
#define MAINDEBUG(x)	if (debug) syslog x
#else
#define MAINDEBUG(x)
#endif

#ifdef DEBUGSYS
#define SYSDEBUG(x)	if (debug) syslog x
#else
#define SYSDEBUG(x)
#endif

#ifdef DEBUGFSM
#define FSMDEBUG(x)	if (debug) syslog x
#else
#define FSMDEBUG(x)
#endif

#ifdef DEBUGLCP
#define LCPDEBUG(x)	if (debug) syslog x
#else
#define LCPDEBUG(x)
#endif

#ifdef DEBUGIPCP
#define IPCPDEBUG(x)	if (debug) syslog x
#else
#define IPCPDEBUG(x)
#endif

#ifdef DEBUGUPAP
#define UPAPDEBUG(x)	if (debug) syslog x
#else
#define UPAPDEBUG(x)
#endif

#ifdef DEBUGCHAP
#define CHAPDEBUG(x)	if (debug) syslog x
#else
#define CHAPDEBUG(x)
#endif

#ifdef DEBUGIPXCP
#define IPXCPDEBUG(x)	if (debug) syslog x
#else
#define IPXCPDEBUG(x)
#endif

#ifndef SIGTYPE
#if defined(sun) || defined(SYSV) || defined(POSIX_SOURCE)
#define SIGTYPE void
#else
#define SIGTYPE int
#endif /* defined(sun) || defined(SYSV) || defined(POSIX_SOURCE) */
#endif /* SIGTYPE */

#ifndef MIN
#define MIN(a, b)	((a) < (b)? (a): (b))
#endif
#ifndef MAX
#define MAX(a, b)	((a) > (b)? (a): (b))
#endif

#endif /* __PPP_H__ */