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/*

 * pppd.h - PPP daemon global declarations.

 *

 * Copyright (c) 1989 Carnegie Mellon University.

 * All rights reserved.

 *

 * Redistribution and use in source and binary forms are permitted

 * provided that the above copyright notice and this paragraph are

 * duplicated in all such forms and that any documentation,

 * advertising materials, and other materials related to such

 * distribution and use acknowledge that the software was developed

 * by Carnegie Mellon University.  The name of the

 * University may not be used to endorse or promote products derived

 * from this software without specific prior written permission.

 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR

 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED

 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.

 *

 * pppd.h,v 1.7 2002/02/27 22:43:31 joel Exp

 */

#ifndef __PPPD_H__

#define __PPPD_H__

#include <stdio.h>              /* for FILE */

#include <limits.h>             /* for NGROUPS_MAX */

#include <sys/param.h>          /* for MAXPATHLEN and BSD4_4, if defined */

#include <sys/types.h>          /* for u_int32_t, if defined */

#include <sys/time.h>           /* for struct timeval */

#include <net/ppp_defs.h>

#include "rtemsdialer.h"

#if defined(__STDC__)

#include <stdarg.h>

#define __V(x)  x

#else

#include <varargs.h>

#define __V(x)  (va_alist) va_dcl

#define const

#define volatile

#endif

#ifdef INET6

#include "eui64.h"

#endif

/*

 * Limits.

 */

#define NUM_PPP         1       /* One PPP interface supported (per process) */

#define MAXWORDLEN      1024    /* max length of word in file (incl null) */

#define MAXARGS         1       /* max # args to a command */

#define MAXNAMELEN      256     /* max length of hostname or name for auth */

#define MAXSECRETLEN    256     /* max length of password or secret */

/*

 * Option descriptor structure.

 */

typedef unsigned char   bool;

enum opt_type {

        o_special_noarg = 0,

        o_special = 1,

        o_bool,

        o_int,

        o_uint32,

        o_string,

};

typedef struct {

        char    *name;          /* name of the option */

        enum opt_type type;

        void    *addr;

        char    *description;

        int     flags;

        void    *addr2;

        int     upper_limit;

        int     lower_limit;

} option_t;

/* Values for flags */

#define OPT_VALUE       0xff    /* mask for presupplied value */

#define OPT_HEX         0x100   /* int option is in hex */

#define OPT_NOARG       0x200   /* option doesn't take argument */

#define OPT_OR          0x400   /* OR in argument to value */

#define OPT_INC         0x800   /* increment value */

#define OPT_PRIV        0x1000  /* privileged option */

#define OPT_STATIC      0x2000  /* string option goes into static array */

#define OPT_LLIMIT      0x4000  /* check value against lower limit */

#define OPT_ULIMIT      0x8000  /* check value against upper limit */

#define OPT_LIMITS      (OPT_LLIMIT|OPT_ULIMIT)

#define OPT_ZEROOK      0x10000 /* 0 value is OK even if not within limits */

#define OPT_NOINCR      0x20000 /* value mustn't be increased */

#define OPT_ZEROINF     0x40000 /* with OPT_NOINCR, 0 == infinity */

#define OPT_A2INFO      0x100000 /* addr2 -> option_info to update */

#define OPT_A2COPY      0x200000 /* addr2 -> second location to rcv value */

#define OPT_ENABLE      0x400000 /* use *addr2 as enable for option */

#define OPT_PRIVFIX     0x800000 /* can't be overridden if noauth */

#define OPT_PREPASS     0x1000000 /* do this opt in pre-pass to find device */

#define OPT_INITONLY    0x2000000 /* option can only be set in init phase */

#define OPT_DEVEQUIV    0x4000000 /* equiv to device name */

#define OPT_DEVNAM      (OPT_PREPASS | OPT_INITONLY | OPT_DEVEQUIV)

#define OPT_VAL(x)      ((x) & OPT_VALUE)

#ifndef GIDSET_TYPE

#define GIDSET_TYPE     gid_t

#endif

/* Structure representing a list of permitted IP addresses. */

struct permitted_ip {

    int         permit;         /* 1 = permit, 0 = forbid */

    u_int32_t   base;           /* match if (addr & mask) == base */

    u_int32_t   mask;           /* base and mask are in network byte order */

};

/*

 * Unfortunately, the linux kernel driver uses a different structure

 * for statistics from the rest of the ports.

 * This structure serves as a common representation for the bits

 * pppd needs.

 */

struct pppd_stats {

    unsigned int        bytes_in;

    unsigned int        bytes_out;

};

/* Used for storing a sequence of words.  Usually malloced. */

struct wordlist {

    struct wordlist     *next;

    char                *word;

};

/*

 * Global variables.

 */

extern int      kill_link;      /* Signal to terminate processing loop */

extern int      hungup;         /* Physical layer has disconnected */

extern int      pppifunit;      /* Interface unit number */

extern char     ifname[];       /* Interface name */

extern int      ttyfd;          /* Serial device file descriptor */

extern char     hostname[];     /* Our hostname */

extern u_char   outpacket_buf[]; /* Buffer for outgoing packets */

extern int      phase;          /* Current state of link - see values below */

extern int      baud_rate;      /* Current link speed in bits/sec */

extern char     *progname;      /* Name of this program */

extern int      redirect_stderr;/* Connector's stderr should go to file */

extern char     peer_authname[];/* Authenticated name of peer */

extern int      privileged;     /* We were run by real-uid root */

extern int      need_holdoff;   /* Need holdoff period after link terminates */

extern char     **script_env;   /* Environment variables for scripts */

extern int      detached;       /* Have detached from controlling tty */

extern GIDSET_TYPE groups[NGROUPS_MAX]; /* groups the user is in */

extern int      ngroups;        /* How many groups valid in groups */

extern struct pppd_stats link_stats; /* byte/packet counts etc. for link */

extern int      using_pty;      /* using pty as device (notty or pty opt.) */

extern int      log_to_fd;      /* logging to this fd as well as syslog */

extern char     *no_ppp_msg;    /* message to print if ppp not in kernel */

extern volatile int status;     /* exit status for pppd */

extern int      devnam_fixed;   /* can no longer change devnam */

extern int      unsuccess;      /* # unsuccessful connection attempts */

extern int      do_callback;    /* set if we want to do callback next */

extern int      doing_callback; /* set if this is a callback */

extern dialerfp pppd_dialer;    /* script dialer function callback */

/* Values for do_callback and doing_callback */

#define CALLBACK_DIALIN         1       /* we are expecting the call back */

#define CALLBACK_DIALOUT        2       /* we are dialling out to call back */

/*

 * Variables set by command-line options.

 */

extern int      debug;          /* Debug flag */

extern int      kdebugflag;     /* Tell kernel to print debug messages */

extern int      default_device; /* Using /dev/tty or equivalent */

extern char     devnam[MAXPATHLEN];     /* Device name */

extern int      crtscts;        /* Use hardware flow control */

extern bool     modem;          /* Use modem control lines */

extern int      inspeed;        /* Input/Output speed requested */

extern u_int32_t netmask;       /* IP netmask to set on interface */

extern bool     lockflag;       /* Create lock file to lock the serial dev */

extern bool     nodetach;       /* Don't detach from controlling tty */

extern bool     updetach;       /* Detach from controlling tty when link up */

extern char     *initializer;   /* Script to initialize physical link */

extern char     *connect_script; /* Script to establish physical link */

extern char     *disconnect_script; /* Script to disestablish physical link */

extern char     *welcomer;      /* Script to welcome client after connection */

extern char     *ptycommand;    /* Command to run on other side of pty */

extern int      maxconnect;     /* Maximum connect time (seconds) */

extern char     user[MAXNAMELEN];/* Our name for authenticating ourselves */

extern char     passwd[MAXSECRETLEN];   /* Password for PAP or CHAP */

extern bool     auth_required;  /* Peer is required to authenticate */

extern bool     persist;        /* Reopen link after it goes down */

extern bool     uselogin;       /* Use /etc/passwd for checking PAP */

extern char     our_name[MAXNAMELEN];/* Our name for authentication purposes */

extern char     remote_name[MAXNAMELEN]; /* Peer's name for authentication */

extern bool     explicit_remote;/* remote_name specified with remotename opt */

extern bool     demand;         /* Do dial-on-demand */

extern char     *ipparam;       /* Extra parameter for ip up/down scripts */

extern bool     cryptpap;       /* Others' PAP passwords are encrypted */

extern int      idle_time_limit;/* Shut down link if idle for this long */

extern int      holdoff;        /* Dead time before restarting */

extern bool     holdoff_specified; /* true if user gave a holdoff value */

extern bool     notty;          /* Stdin/out is not a tty */

extern char     *record_file;   /* File to record chars sent/received */

extern bool     sync_serial;    /* Device is synchronous serial device */

extern int      maxfail;        /* Max # of unsuccessful connection attempts */

extern char     linkname[MAXPATHLEN]; /* logical name for link */

extern bool     tune_kernel;    /* May alter kernel settings as necessary */

extern int      connect_delay;  /* Time to delay after connect script */

#ifdef PPP_FILTER

extern struct   bpf_program pass_filter;   /* Filter for pkts to pass */

extern struct   bpf_program active_filter; /* Filter for link-active pkts */

#endif

#ifdef MSLANMAN

extern bool     ms_lanman;      /* Use LanMan password instead of NT */

                                /* Has meaning only with MS-CHAP challenges */

#endif

extern char *current_option;    /* the name of the option being parsed */

extern int  privileged_option;  /* set iff the current option came from root */

extern char *option_source;     /* string saying where the option came from */

/*

 * Values for phase.

 */

#define PHASE_DEAD              0

#define PHASE_INITIALIZE        1

#define PHASE_SERIALCONN        2

#define PHASE_DORMANT           3

#define PHASE_ESTABLISH         4

#define PHASE_AUTHENTICATE      5

#define PHASE_CALLBACK          6

#define PHASE_NETWORK           7

#define PHASE_RUNNING           8

#define PHASE_TERMINATE         9

#define PHASE_DISCONNECT        10

#define PHASE_HOLDOFF           11

/*

 * The following struct gives the addresses of procedures to call

 * for a particular protocol.

 */

struct protent {

    u_short protocol;           /* PPP protocol number */

    /* Initialization procedure */

    void (*init) __P((int unit));

    /* Process a received packet */

    void (*input) __P((int unit, u_char *pkt, int len));

    /* Process a received protocol-reject */

    void (*protrej) __P((int unit));

    /* Lower layer has come up */

    void (*lowerup) __P((int unit));

    /* Lower layer has gone down */

    void (*lowerdown) __P((int unit));

    /* Open the protocol */

    void (*open) __P((int unit));

    /* Close the protocol */

    void (*close) __P((int unit, char *reason));

    /* Print a packet in readable form */

    int  (*printpkt) __P((u_char *pkt, int len,

                          void (*printer) __P((void *, char *, ...)),

                          void *arg));

    /* Process a received data packet */

    void (*datainput) __P((int unit, u_char *pkt, int len));

    bool enabled_flag;          /* 0 iff protocol is disabled */

    char *name;                 /* Text name of protocol */

    char *data_name;            /* Text name of corresponding data protocol */

    option_t *options;          /* List of command-line options */

    /* Check requested options, assign defaults */

    void (*check_options) __P((void));

    /* Configure interface for demand-dial */

    int  (*demand_conf) __P((int unit));

    /* Say whether to bring up link for this pkt */

    int  (*active_pkt) __P((u_char *pkt, int len));

};

/* Table of pointers to supported protocols */

extern struct protent *protocols[];

/*

 * Prototypes.

 */

/* Procedures exported from main.c. */

void die __P((int));            /* Cleanup and exit */

void quit __P((void));          /* like die(1) */

void novm __P((char *));        /* Say we ran out of memory, and die */

void ppptimeout __P((void (*func)(void *), void *arg, int t));

                                /* Call func(arg) after t seconds */

void untimeout __P((void (*func)(void *), void *arg));

                                /* Cancel call to func(arg) */

void update_link_stats __P((int)); /* Get stats at link termination */

void new_phase __P((int));      /* signal start of new phase */

/* Procedures exported from utils.c. */

void log_packet __P((u_char *, int, char *, int));

                                /* Format a packet and log it with syslog */

void print_string __P((char *, int,  void (*) (void *, char *, ...),

                void *));       /* Format a string for output */

int slprintf __P((char *, int, char *, ...));           /* sprintf++ */

int vslprintf __P((char *, int, char *, va_list));      /* vsprintf++ */

size_t strlcpy __P((char *, const char *, size_t));     /* safe strcpy */

size_t strlcat __P((char *, const char *, size_t));     /* safe strncpy */

void pppd_dbglog __P((char *, ...));    /* log a debug message */

void pppd_info __P((char *, ...));      /* log an informational message */

void pppd_notice __P((char *, ...));    /* log a notice-level message */

void pppd_warn __P((char *, ...));      /* log a warning message */

void pppd_error __P((char *, ...));     /* log an error message */

void pppd_fatal __P((char *, ...));     /* log an error message and die(1) */

#define dbglog pppd_dbglog

#define info   pppd_info

#define notice pppd_notice

#define warn   pppd_warn

#define error  pppd_error

#define fatal  pppd_fatal

/* Procedures exported from auth.c */

void link_required __P((int));    /* we are starting to use the link */

void link_terminated __P((int));  /* we are finished with the link */

void link_down __P((int));        /* the LCP layer has left the Opened state */

void link_established __P((int)); /* the link is up; authenticate now */

void start_networks __P((void));  /* start all the network control protos */

void np_up __P((int, int));       /* a network protocol has come up */

void np_down __P((int, int));     /* a network protocol has gone down */

void np_finished __P((int, int)); /* a network protocol no longer needs link */

void auth_peer_fail __P((int, int));

                                /* peer failed to authenticate itself */

void auth_peer_success __P((int, int, char *, int));

                                /* peer successfully authenticated itself */

void auth_withpeer_fail __P((int, int));

                                /* we failed to authenticate ourselves */

void auth_withpeer_success __P((int, int));

                                /* we successfully authenticated ourselves */

int  auth_check_options __P((void));

                                /* check authentication options supplied */

void auth_reset __P((int));     /* check what secrets we have */

int  check_passwd __P((int, char *, int, char *, int, char **));

                                /* 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 */

/* 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)); /* should we bring link up? */

/* Procedures exported from sys-*.c */

void sys_init __P((void));      /* Do system-dependent initialization */

void sys_cleanup __P((void));   /* Restore system state before exiting */

int  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 */

int  get_pty __P((int *, int *, char *, int));  /* Get pty master/slave */

int  open_ppp_loopback __P((void)); /* Open loopback for demand-dialling */

int  establish_ppp __P((int));  /* Turn serial port into a ppp interface */

void restore_loop __P((void));  /* Transfer ppp unit back to loopback */

void disestablish_ppp __P((int)); /* Restore port to normal operation */

void clean_check __P((void));   /* Check if line was 8-bit clean */

void set_up_tty __P((int, int)); /* Set up port's speed, parameters, etc. */

void restore_tty __P((int));    /* 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 ppp_delay __P((void));       /* delay task for a little while */

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  get_ppp_stats __P((int, struct pppd_stats *));

                                /* Return link statistics */

int  sifvjcomp __P((int, int, int, int));

                                /* Configure VJ TCP header compression */

int  sifup __P((int));          /* Configure i/f up for one protocol */

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 one protocol */

int  sifaddr __P((int, u_int32_t, u_int32_t, u_int32_t));

                                /* Configure IPv4 addresses for i/f */

int  cifaddr __P((int, u_int32_t, u_int32_t));

                                /* Reset i/f IP addresses */

#ifdef INET6

int  sif6addr __P((int, eui64_t, eui64_t));

                                /* Configure IPv6 addresses for i/f */

int  cif6addr __P((int, eui64_t, eui64_t));

                                /* Remove an IPv6 address from i/f */

#endif

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 */

int  relock __P((int));         /* Rewrite lock file with new pid */

void unlock __P((void));        /* Delete previously-created lock file */

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 */

int  have_route_to __P((u_int32_t)); /* Check if route to addr exists */

#ifdef PPP_FILTER

int  set_filters __P((struct bpf_program *pass, struct bpf_program *active));

                                /* Set filter programs in kernel */

#endif

#ifdef IPX_CHANGE

int  sipxfaddr __P((int, unsigned long, unsigned char *));

int  cipxfaddr __P((int));

#endif

/* Procedures exported from options.c */

int  parse_args __P((int argc, char **argv));

                                /* Parse options from arguments given */

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 */

int  options_from_list __P((struct wordlist *, int privileged));

                                /* Parse options from a wordlist */

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 int_option __P((char *, int *));

                                /* Simplified number_option for decimal ints */

void add_options __P((option_t *)); /* Add extra options */

/*

 * 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 devnam_info;

extern struct option_info initializer_info;

extern struct option_info connect_script_info;

extern struct option_info disconnect_script_info;

extern struct option_info welcomer_info;

extern struct option_info ptycommand_info;

/*

 * Hooks to enable plugins to change various things.

 */

extern int (*new_phase_hook) __P((int));

extern int (*idle_time_hook) __P((struct ppp_idle *));

extern int (*holdoff_hook) __P((void));

extern int (*pap_check_hook) __P((void));

extern int (*pap_auth_hook) __P((char *user, char *passwd/*, char **msgp,

                                 struct wordlist **paddrs,

                                 struct wordlist **popts*/));

extern void (*pap_logout_hook) __P((void));

extern int (*pap_passwd_hook) __P((char *user, char *passwd));

extern void (*ip_up_hook) __P((void));

extern void (*ip_down_hook) __P((void));

extern void (*auth_linkup_hook) __P((void));

extern void (*auth_linkdown_hook) __P((void));

/*

 * 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))

/*

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

 */

#define TIMEOUT(r, f, t)        ppptimeout((r), (f), (t))

#define UNTIMEOUT(r, f)         untimeout((r), (f))

#define BCOPY(s, d, l)          memcpy(d, s, l)

#define BZERO(s, n)             memset(s, 0, n)

#define PRINTMSG(m, l)          { info("Remote message: %0.*v", l, m); }

/*

 * MAKEHEADER - Add Header fields to a packet.

 */

#define MAKEHEADER(p, t) { \

    PUTCHAR(PPP_ALLSTATIONS, p); \

    PUTCHAR(PPP_UI, p); \

    PUTSHORT(t, p); }

/*

 * Exit status values.

 */

#define EXIT_OK                 0

#define EXIT_FATAL_ERROR        1

#define EXIT_OPTION_ERROR       2

#define EXIT_NOT_ROOT           3

#define EXIT_NO_KERNEL_SUPPORT  4

#define EXIT_USER_REQUEST       5

#define EXIT_LOCK_FAILED        6

#define EXIT_OPEN_FAILED        7

#define EXIT_CONNECT_FAILED     8

#define EXIT_PTYCMD_FAILED      9

#define EXIT_NEGOTIATION_FAILED 10

#define EXIT_PEER_AUTH_FAILED   11

#define EXIT_IDLE_TIMEOUT       12

#define EXIT_CONNECT_TIME       13

#define EXIT_CALLBACK           14

#define EXIT_PEER_DEAD          15

#define EXIT_HANGUP             16

#define EXIT_LOOPBACK           17

#define EXIT_INIT_FAILED        18

#define EXIT_AUTH_TOPEER_FAILED 19

/*

 * Debug macros.  Slightly useful for finding bugs in pppd, not particularly

 * useful for finding out why your connection isn't being established.

 */

#ifdef DEBUGALL

#define DEBUGMAIN       1

#define DEBUGFSM        1

#define DEBUGLCP        1

#define DEBUGIPCP       1

#define DEBUGIPV6CP     1

#define DEBUGUPAP       1

#define DEBUGCHAP       1

#endif

#define DEBUGMAIN       1

#define DEBUGUPAP       1

#define DEBUGCHAP       1

#ifdef DEBUGMAIN

#define MAINDEBUG(x)    if (debug) dbglog x

#else

#define MAINDEBUG(x)

#endif

#ifdef DEBUGSYS

#define SYSDEBUG(x)     if (debug) dbglog x

#else

#define SYSDEBUG(x)

#endif

#ifdef DEBUGFSM

#define FSMDEBUG(x)     if (debug) dbglog x

#else

#define FSMDEBUG(x)

#endif

#ifdef DEBUGLCP

#define LCPDEBUG(x)     if (debug) dbglog x

#else

#define LCPDEBUG(x)

#endif

#ifdef DEBUGIPCP

#define IPCPDEBUG(x)    if (debug) dbglog x

#else

#define IPCPDEBUG(x)

#endif

#ifdef DEBUGIPV6CP

#define IPV6CPDEBUG(x)  if (debug) dbglog x

#else

#define IPV6CPDEBUG(x)

#endif

#ifdef DEBUGUPAP

#define UPAPDEBUG(x)    if (debug) dbglog x

#else

#define UPAPDEBUG(x)

#endif