2 * pppd.h - PPP daemon global declarations.
4 * Copyright (c) 1989 Carnegie Mellon University.
7 * Redistribution and use in source and binary forms are permitted
8 * provided that the above copyright notice and this paragraph are
9 * duplicated in all such forms and that any documentation,
10 * advertising materials, and other materials related to such
11 * distribution and use acknowledge that the software was developed
12 * by Carnegie Mellon University. The name of the
13 * University may not be used to endorse or promote products derived
14 * from this software without specific prior written permission.
15 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
17 * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
19 * $Id: pppd.h,v 1.1.1.4 2003/10/14 08:09:53 sparq Exp $
29 #include <stdio.h> /* for FILE */
30 #include <limits.h> /* for NGROUPS_MAX */
31 #include <sys/param.h> /* for MAXPATHLEN and BSD4_4, if defined */
32 #include <sys/types.h> /* for u_int32_t, if defined */
33 #include <sys/time.h> /* for struct timeval */
34 #include <net/ppp_defs.h>
35 #include "patchlevel.h"
42 #define __V(x) (va_alist) va_dcl
55 #define NUM_PPP 1 /* One PPP interface supported (per process) */
56 #define MAXWORDLEN 1024 /* max length of word in file (incl null) */
57 #define MAXARGS 1 /* max # args to a command */
58 #define MAXNAMELEN 256 /* max length of hostname or name for auth */
59 #define MAXSECRETLEN 256 /* max length of password or secret */
62 * Option descriptor structure.
65 typedef unsigned char bool;
78 char *name
; /* name of the option */
91 /* Values for flags */
92 #define OPT_VALUE 0xff /* mask for presupplied value */
93 #define OPT_HEX 0x100 /* int option is in hex */
94 #define OPT_NOARG 0x200 /* option doesn't take argument */
95 #define OPT_OR 0x400 /* OR in argument to value */
96 #define OPT_INC 0x800 /* increment value */
97 #define OPT_PRIV 0x1000 /* privileged option */
98 #define OPT_STATIC 0x2000 /* string option goes into static array */
99 #define OPT_LLIMIT 0x4000 /* check value against lower limit */
100 #define OPT_ULIMIT 0x8000 /* check value against upper limit */
101 #define OPT_LIMITS (OPT_LLIMIT|OPT_ULIMIT)
102 #define OPT_ZEROOK 0x10000 /* 0 value is OK even if not within limits */
103 #define OPT_HIDE 0x10000 /* for o_string, print value as ?????? */
104 #define OPT_A2LIST 0x10000 /* for o_special, keep list of values */
105 #define OPT_NOINCR 0x20000 /* value mustn't be increased */
106 #define OPT_ZEROINF 0x40000 /* with OPT_NOINCR, 0 == infinity */
107 #define OPT_PRIO 0x80000 /* process option priorities for this option */
108 #define OPT_PRIOSUB 0x100000 /* subsidiary member of priority group */
109 #define OPT_ALIAS 0x200000 /* option is alias for previous option */
110 #define OPT_A2COPY 0x400000 /* addr2 -> second location to rcv value */
111 #define OPT_ENABLE 0x800000 /* use *addr2 as enable for option */
112 #define OPT_A2CLR 0x1000000 /* clear *(bool *)addr2 */
113 #define OPT_PRIVFIX 0x2000000 /* user can't override if set by root */
114 #define OPT_INITONLY 0x4000000 /* option can only be set in init phase */
115 #define OPT_DEVEQUIV 0x8000000 /* equiv to device name */
116 #define OPT_DEVNAM (OPT_INITONLY | OPT_DEVEQUIV)
117 #define OPT_A2PRINTER 0x10000000 /* *addr2 is a fn for printing option */
118 #define OPT_A2STRVAL 0x20000000 /* *addr2 points to current string value */
119 #define OPT_NOPRINT 0x40000000 /* don't print this option at all */
121 #define OPT_VAL(x) ((x) & OPT_VALUE)
123 /* Values for priority */
124 #define OPRIO_DEFAULT 0 /* a default value */
125 #define OPRIO_CFGFILE 1 /* value from a configuration file */
126 #define OPRIO_CMDLINE 2 /* value from the command line */
127 #define OPRIO_SECFILE 3 /* value from options in a secrets file */
128 #define OPRIO_ROOT 100 /* added to priority if OPT_PRIVFIX && root */
131 #define GIDSET_TYPE gid_t
134 /* Structure representing a list of permitted IP addresses. */
135 struct permitted_ip
{
136 int permit
; /* 1 = permit, 0 = forbid */
137 u_int32_t base
; /* match if (addr & mask) == base */
138 u_int32_t mask
; /* base and mask are in network byte order */
142 * Unfortunately, the linux kernel driver uses a different structure
143 * for statistics from the rest of the ports.
144 * This structure serves as a common representation for the bits
148 unsigned int bytes_in
;
149 unsigned int bytes_out
;
152 /* Used for storing a sequence of words. Usually malloced. */
154 struct wordlist
*next
;
158 /* An endpoint discriminator, used with multilink. */
159 #define MAX_ENDP_LEN 20 /* maximum length of discriminator value */
162 unsigned char length
;
163 unsigned char value
[MAX_ENDP_LEN
];
166 /* values for epdisc.class */
167 #define EPD_NULL 0 /* null discriminator, no data */
172 #define EPD_PHONENUM 5
174 typedef void (*notify_func
) __P((void *, int));
177 struct notifier
*next
;
186 extern int hungup
; /* Physical layer has disconnected */
187 extern int ifunit
; /* Interface unit number */
188 extern char ifname
[]; /* Interface name */
189 extern char hostname
[]; /* Our hostname */
190 extern u_char outpacket_buf
[]; /* Buffer for outgoing packets */
191 extern int phase
; /* Current state of link - see values below */
192 extern int baud_rate
; /* Current link speed in bits/sec */
193 extern char *progname
; /* Name of this program */
194 extern int redirect_stderr
;/* Connector's stderr should go to file */
195 extern char peer_authname
[];/* Authenticated name of peer */
196 extern int privileged
; /* We were run by real-uid root */
197 extern int need_holdoff
; /* Need holdoff period after link terminates */
198 extern char **script_env
; /* Environment variables for scripts */
199 extern int detached
; /* Have detached from controlling tty */
200 extern GIDSET_TYPE groups
[NGROUPS_MAX
]; /* groups the user is in */
201 extern int ngroups
; /* How many groups valid in groups */
202 extern struct pppd_stats link_stats
; /* byte/packet counts etc. for link */
203 extern int link_stats_valid
; /* set if link_stats is valid */
204 extern int link_connect_time
; /* time the link was up for */
205 extern int using_pty
; /* using pty as device (notty or pty opt.) */
206 extern int log_to_fd
; /* logging to this fd as well as syslog */
207 extern bool log_default
; /* log_to_fd is default (stdout) */
208 extern char *no_ppp_msg
; /* message to print if ppp not in kernel */
209 extern volatile int status
; /* exit status for pppd */
210 extern bool devnam_fixed
; /* can no longer change devnam */
211 extern int unsuccess
; /* # unsuccessful connection attempts */
212 extern int do_callback
; /* set if we want to do callback next */
213 extern int doing_callback
; /* set if this is a callback */
214 extern char ppp_devnam
[MAXPATHLEN
];
215 extern struct notifier
*pidchange
; /* for notifications of pid changing */
216 extern struct notifier
*phasechange
; /* for notifications of phase changes */
217 extern struct notifier
*exitnotify
; /* for notification that we're exiting */
218 extern struct notifier
*sigreceived
; /* notification of received signal */
219 extern int listen_time
; /* time to listen first (ms) */
221 /* Values for do_callback and doing_callback */
222 #define CALLBACK_DIALIN 1 /* we are expecting the call back */
223 #define CALLBACK_DIALOUT 2 /* we are dialling out to call back */
226 * Variables set by command-line options.
229 extern int debug
; /* Debug flag */
230 extern int kdebugflag
; /* Tell kernel to print debug messages */
231 extern int default_device
; /* Using /dev/tty or equivalent */
232 extern char devnam
[MAXPATHLEN
]; /* Device name */
233 extern int crtscts
; /* Use hardware flow control */
234 extern bool modem
; /* Use modem control lines */
235 extern int inspeed
; /* Input/Output speed requested */
236 extern u_int32_t netmask
; /* IP netmask to set on interface */
237 extern bool lockflag
; /* Create lock file to lock the serial dev */
238 extern bool nodetach
; /* Don't detach from controlling tty */
239 extern bool updetach
; /* Detach from controlling tty when link up */
240 extern char *initializer
; /* Script to initialize physical link */
241 extern char *connect_script
; /* Script to establish physical link */
242 extern char *disconnect_script
; /* Script to disestablish physical link */
243 extern char *welcomer
; /* Script to welcome client after connection */
244 extern char *ptycommand
; /* Command to run on other side of pty */
245 extern int maxconnect
; /* Maximum connect time (seconds) */
246 extern char user
[MAXNAMELEN
];/* Our name for authenticating ourselves */
247 extern char passwd
[MAXSECRETLEN
]; /* Password for PAP or CHAP */
248 extern bool auth_required
; /* Peer is required to authenticate */
249 extern bool persist
; /* Reopen link after it goes down */
250 extern bool uselogin
; /* Use /etc/passwd for checking PAP */
251 extern char our_name
[MAXNAMELEN
];/* Our name for authentication purposes */
252 extern char remote_name
[MAXNAMELEN
]; /* Peer's name for authentication */
253 extern bool explicit_remote
;/* remote_name specified with remotename opt */
254 extern bool demand
; /* Do dial-on-demand */
255 extern char *ipparam
; /* Extra parameter for ip up/down scripts */
256 extern bool cryptpap
; /* Others' PAP passwords are encrypted */
257 extern int idle_time_limit
;/* Shut down link if idle for this long */
258 extern int holdoff
; /* Dead time before restarting */
259 extern bool holdoff_specified
; /* true if user gave a holdoff value */
260 extern bool notty
; /* Stdin/out is not a tty */
261 extern char *pty_socket
; /* Socket to connect to pty */
262 extern char *record_file
; /* File to record chars sent/received */
263 extern bool sync_serial
; /* Device is synchronous serial device */
264 extern int maxfail
; /* Max # of unsuccessful connection attempts */
265 extern char linkname
[MAXPATHLEN
]; /* logical name for link */
266 extern bool tune_kernel
; /* May alter kernel settings as necessary */
267 extern int connect_delay
; /* Time to delay after connect script */
268 extern int max_data_rate
; /* max bytes/sec through charshunt */
269 extern int req_unit
; /* interface unit number to use */
270 extern bool multilink
; /* enable multilink operation */
271 extern bool noendpoint
; /* don't send or accept endpt. discrim. */
272 extern char *bundle_name
; /* bundle name for multilink */
273 extern bool dump_options
; /* print out option values */
274 extern bool dryrun
; /* check everything, print options, exit */
277 extern struct bpf_program pass_filter
; /* Filter for pkts to pass */
278 extern struct bpf_program active_filter
; /* Filter for link-active pkts */
282 extern bool ms_lanman
; /* Use LanMan password instead of NT */
283 /* Has meaning only with MS-CHAP challenges */
286 extern char *current_option
; /* the name of the option being parsed */
287 extern int privileged_option
; /* set iff the current option came from root */
288 extern char *option_source
; /* string saying where the option came from */
289 extern int option_priority
; /* priority of current options */
295 #define PHASE_INITIALIZE 1
296 #define PHASE_SERIALCONN 2
297 #define PHASE_DORMANT 3
298 #define PHASE_ESTABLISH 4
299 #define PHASE_AUTHENTICATE 5
300 #define PHASE_CALLBACK 6
301 #define PHASE_NETWORK 7
302 #define PHASE_RUNNING 8
303 #define PHASE_TERMINATE 9
304 #define PHASE_DISCONNECT 10
305 #define PHASE_HOLDOFF 11
308 * The following struct gives the addresses of procedures to call
309 * for a particular protocol.
312 u_short protocol
; /* PPP protocol number */
313 /* Initialization procedure */
314 void (*init
) __P((int unit
));
315 /* Process a received packet */
316 void (*input
) __P((int unit
, u_char
*pkt
, int len
));
317 /* Process a received protocol-reject */
318 void (*protrej
) __P((int unit
));
319 /* Lower layer has come up */
320 void (*lowerup
) __P((int unit
));
321 /* Lower layer has gone down */
322 void (*lowerdown
) __P((int unit
));
323 /* Open the protocol */
324 void (*open
) __P((int unit
));
325 /* Close the protocol */
326 void (*close
) __P((int unit
, char *reason
));
327 /* Print a packet in readable form */
328 int (*printpkt
) __P((u_char
*pkt
, int len
,
329 void (*printer
) __P((void *, char *, ...)),
331 /* Process a received data packet */
332 void (*datainput
) __P((int unit
, u_char
*pkt
, int len
));
333 bool enabled_flag
; /* 0 iff protocol is disabled */
334 char *name
; /* Text name of protocol */
335 char *data_name
; /* Text name of corresponding data protocol */
336 option_t
*options
; /* List of command-line options */
337 /* Check requested options, assign defaults */
338 void (*check_options
) __P((void));
339 /* Configure interface for demand-dial */
340 int (*demand_conf
) __P((int unit
));
341 /* Say whether to bring up link for this pkt */
342 int (*active_pkt
) __P((u_char
*pkt
, int len
));
345 /* Table of pointers to supported protocols */
346 extern struct protent
*protocols
[];
349 * This struct contains pointers to a set of procedures for
350 * doing operations on a "channel". A channel provides a way
351 * to send and receive PPP packets - the canonical example is
352 * a serial port device in PPP line discipline (or equivalently
353 * with PPP STREAMS modules pushed onto it).
356 /* set of options for this channel */
358 /* find and process a per-channel options file */
359 void (*process_extra_options
) __P((void));
360 /* check all the options that have been given */
361 void (*check_options
) __P((void));
362 /* get the channel ready to do PPP, return a file descriptor */
363 int (*connect
) __P((void));
364 /* we're finished with the channel */
365 void (*disconnect
) __P((void));
366 /* put the channel into PPP `mode' */
367 int (*establish_ppp
) __P((int));
368 /* take the channel out of PPP `mode', restore loopback if demand */
369 void (*disestablish_ppp
) __P((int));
370 /* set the transmit-side PPP parameters of the channel */
371 void (*send_config
) __P((int, u_int32_t
, int, int));
372 /* set the receive-side PPP parameters of the channel */
373 void (*recv_config
) __P((int, u_int32_t
, int, int));
374 /* cleanup on error or normal exit */
375 void (*cleanup
) __P((void));
376 /* close the device, called in children after fork */
377 void (*close
) __P((void));
380 extern struct channel
*the_channel
;
382 #define ppp_send_config(unit, mtu, accm, pc, acc) \
384 if (the_channel->send_config) \
385 (*the_channel->send_config)((mtu), (accm), (pc), (acc)); \
388 #define ppp_recv_config(unit, mtu, accm, pc, acc) \
390 if (the_channel->send_config) \
391 (*the_channel->recv_config)((mtu), (accm), (pc), (acc)); \
398 /* Procedures exported from main.c. */
399 void set_ifunit
__P((int)); /* set stuff that depends on ifunit */
400 void detach
__P((void)); /* Detach from controlling tty */
401 void die
__P((int)); /* Cleanup and exit */
402 void quit
__P((void)); /* like die(1) */
403 void novm
__P((char *)); /* Say we ran out of memory, and die */
404 void timeout
__P((void (*func
)(void *), void *arg
, int s
, int us
));
405 /* Call func(arg) after s.us seconds */
406 void untimeout
__P((void (*func
)(void *), void *arg
));
407 /* Cancel call to func(arg) */
408 void record_child
__P((int, char *, void (*) (void *), void *));
409 int device_script
__P((char *cmd
, int in
, int out
, int dont_wait
));
410 /* Run `cmd' with given stdin and stdout */
411 pid_t run_program
__P((char *prog
, char **args
, int must_exist
,
412 void (*done
)(void *), void *arg
));
413 /* Run program prog with args in child */
414 void reopen_log
__P((void)); /* (re)open the connection to syslog */
415 void update_link_stats
__P((int)); /* Get stats at link termination */
416 void script_setenv
__P((char *, char *, int)); /* set script env var */
417 void script_unsetenv
__P((char *)); /* unset script env var */
418 void new_phase
__P((int)); /* signal start of new phase */
419 void add_notifier
__P((struct notifier
**, notify_func
, void *));
420 void remove_notifier
__P((struct notifier
**, notify_func
, void *));
421 void notify
__P((struct notifier
*, int));
423 /* Procedures exported from tty.c. */
424 void tty_init
__P((void));
426 /* Procedures exported from utils.c. */
427 void log_packet
__P((u_char
*, int, char *, int));
428 /* Format a packet and log it with syslog */
429 void print_string
__P((char *, int, void (*) (void *, char *, ...),
430 void *)); /* Format a string for output */
431 int slprintf
__P((char *, int, char *, ...)); /* sprintf++ */
432 int vslprintf
__P((char *, int, char *, va_list)); /* vsprintf++ */
433 size_t strlcpy
__P((char *, const char *, size_t)); /* safe strcpy */
434 size_t strlcat
__P((char *, const char *, size_t)); /* safe strncpy */
435 void dbglog
__P((char *, ...)); /* log a debug message */
436 void info
__P((char *, ...)); /* log an informational message */
437 void notice
__P((char *, ...)); /* log a notice-level message */
438 void warn
__P((char *, ...)); /* log a warning message */
439 void error
__P((char *, ...)); /* log an error message */
440 void fatal
__P((char *, ...)); /* log an error message and die(1) */
441 void init_pr_log
__P((char *, int)); /* initialize for using pr_log */
442 void pr_log
__P((void *, char *, ...)); /* printer fn, output to syslog */
443 void end_pr_log
__P((void)); /* finish up after using pr_log */
445 /* Procedures exported from auth.c */
446 void link_required
__P((int)); /* we are starting to use the link */
447 void link_terminated
__P((int)); /* we are finished with the link */
448 void link_down
__P((int)); /* the LCP layer has left the Opened state */
449 void link_established
__P((int)); /* the link is up; authenticate now */
450 void start_networks
__P((void)); /* start all the network control protos */
451 void np_up
__P((int, int)); /* a network protocol has come up */
452 void np_down
__P((int, int)); /* a network protocol has gone down */
453 void np_finished
__P((int, int)); /* a network protocol no longer needs link */
454 void auth_peer_fail
__P((int, int));
455 /* peer failed to authenticate itself */
456 void auth_peer_success
__P((int, int, char *, int));
457 /* peer successfully authenticated itself */
458 void auth_withpeer_fail
__P((int, int));
459 /* we failed to authenticate ourselves */
460 void auth_withpeer_success
__P((int, int));
461 /* we successfully authenticated ourselves */
462 void auth_check_options
__P((void));
463 /* check authentication options supplied */
464 void auth_reset
__P((int)); /* check what secrets we have */
465 int check_passwd
__P((int, char *, int, char *, int, char **));
466 /* Check peer-supplied username/password */
467 int get_secret
__P((int, char *, char *, char *, int *, int));
468 /* get "secret" for chap */
469 int auth_ip_addr
__P((int, u_int32_t
));
470 /* check if IP address is authorized */
471 int bad_ip_adrs
__P((u_int32_t
));
472 /* check if IP address is unreasonable */
474 /* Procedures exported from demand.c */
475 void demand_conf
__P((void)); /* config interface(s) for demand-dial */
476 void demand_block
__P((void)); /* set all NPs to queue up packets */
477 void demand_unblock
__P((void)); /* set all NPs to pass packets */
478 void demand_discard
__P((void)); /* set all NPs to discard packets */
479 void demand_rexmit
__P((int)); /* retransmit saved frames for an NP */
480 int loop_chars
__P((unsigned char *, int)); /* process chars from loopback */
481 int loop_frame
__P((unsigned char *, int)); /* should we bring link up? */
483 /* Procedures exported from multilink.c */
484 void mp_check_options
__P((void)); /* Check multilink-related options */
485 int mp_join_bundle
__P((void)); /* join our link to an appropriate bundle */
486 char *epdisc_to_str
__P((struct epdisc
*)); /* string from endpoint discrim. */
487 int str_to_epdisc
__P((struct epdisc
*, char *)); /* endpt disc. from str */
489 /* Procedures exported from sys-*.c */
490 void sys_init
__P((void)); /* Do system-dependent initialization */
491 void sys_cleanup
__P((void)); /* Restore system state before exiting */
492 int sys_check_options
__P((void)); /* Check options specified */
493 void sys_close
__P((void)); /* Clean up in a child before execing */
494 int ppp_available
__P((void)); /* Test whether ppp kernel support exists */
495 int get_pty
__P((int *, int *, char *, int)); /* Get pty master/slave */
496 int open_ppp_loopback
__P((void)); /* Open loopback for demand-dialling */
497 int tty_establish_ppp
__P((int)); /* Turn serial port into a ppp interface */
498 void tty_disestablish_ppp
__P((int)); /* Restore port to normal operation */
499 void generic_disestablish_ppp
__P((int dev_fd
)); /* Restore device setting */
500 int generic_establish_ppp
__P((int dev_fd
)); /* Make a ppp interface */
501 void make_new_bundle
__P((int, int, int, int)); /* Create new bundle */
502 int bundle_attach
__P((int)); /* Attach link to existing bundle */
503 void cfg_bundle
__P((int, int, int, int)); /* Configure existing bundle */
504 void clean_check
__P((void)); /* Check if line was 8-bit clean */
505 void set_up_tty
__P((int, int)); /* Set up port's speed, parameters, etc. */
506 void restore_tty
__P((int)); /* Restore port's original parameters */
507 void setdtr
__P((int, int)); /* Raise or lower port's DTR line */
508 void output
__P((int, u_char
*, int)); /* Output a PPP packet */
509 void wait_input
__P((struct timeval
*));
510 /* Wait for input, with timeout */
511 void add_fd
__P((int)); /* Add fd to set to wait for */
512 void remove_fd
__P((int)); /* Remove fd from set to wait for */
513 int read_packet
__P((u_char
*)); /* Read PPP packet */
514 int get_loop_output
__P((void)); /* Read pkts from loopback */
515 void tty_send_config
__P((int, u_int32_t
, int, int));
516 /* Configure i/f transmit parameters */
517 void tty_set_xaccm
__P((ext_accm
));
518 /* Set extended transmit ACCM */
519 void tty_recv_config
__P((int, u_int32_t
, int, int));
520 /* Configure i/f receive parameters */
521 int ccp_test
__P((int, u_char
*, int, int));
522 /* Test support for compression scheme */
523 void ccp_flags_set
__P((int, int, int));
524 /* Set kernel CCP state */
525 int ccp_fatal_error
__P((int)); /* Test for fatal decomp error in kernel */
526 int get_idle_time
__P((int, struct ppp_idle
*));
527 /* Find out how long link has been idle */
528 int get_ppp_stats
__P((int, struct pppd_stats
*));
529 /* Return link statistics */
530 void netif_set_mtu
__P((int, int)); /* Set PPP interface MTU */
531 int sifvjcomp
__P((int, int, int, int));
532 /* Configure VJ TCP header compression */
533 int sifup
__P((int)); /* Configure i/f up for one protocol */
534 int sifnpmode
__P((int u
, int proto
, enum NPmode mode
));
535 /* Set mode for handling packets for proto */
536 int sifdown
__P((int)); /* Configure i/f down for one protocol */
537 int sifaddr
__P((int, u_int32_t
, u_int32_t
, u_int32_t
));
538 /* Configure IPv4 addresses for i/f */
539 int cifaddr
__P((int, u_int32_t
, u_int32_t
));
540 /* Reset i/f IP addresses */
542 int sif6addr
__P((int, eui64_t
, eui64_t
));
543 /* Configure IPv6 addresses for i/f */
544 int cif6addr
__P((int, eui64_t
, eui64_t
));
545 /* Remove an IPv6 address from i/f */
547 int sifdefaultroute
__P((int, u_int32_t
, u_int32_t
));
548 /* Create default route through i/f */
549 int cifdefaultroute
__P((int, u_int32_t
, u_int32_t
));
550 /* Delete default route through i/f */
551 int sifproxyarp
__P((int, u_int32_t
));
552 /* Add proxy ARP entry for peer */
553 int cifproxyarp
__P((int, u_int32_t
));
554 /* Delete proxy ARP entry for peer */
555 u_int32_t GetMask
__P((u_int32_t
)); /* Get appropriate netmask for address */
556 int lock
__P((char *)); /* Create lock file for device */
557 int relock
__P((int)); /* Rewrite lock file with new pid */
558 void unlock
__P((void)); /* Delete previously-created lock file */
559 void logwtmp
__P((const char *, const char *, const char *));
560 /* Write entry to wtmp file */
561 int get_host_seed
__P((void)); /* Get host-dependent random number seed */
562 int have_route_to
__P((u_int32_t
)); /* Check if route to addr exists */
564 int set_filters
__P((struct bpf_program
*pass
, struct bpf_program
*active
));
565 /* Set filter programs in kernel */
568 int sipxfaddr
__P((int, unsigned long, unsigned char *));
569 int cipxfaddr
__P((int));
571 int get_if_hwaddr
__P((u_char
*addr
, char *name
));
572 char *get_first_ethernet
__P((void));
574 /* Procedures exported from options.c */
575 int parse_args
__P((int argc
, char **argv
));
576 /* Parse options from arguments given */
577 int options_from_file
__P((char *filename
, int must_exist
, int check_prot
,
579 /* Parse options from an options file */
580 int options_from_user
__P((void)); /* Parse options from user's .ppprc */
581 int options_for_tty
__P((void)); /* Parse options from /etc/ppp/options.tty */
582 int options_from_list
__P((struct wordlist
*, int privileged
));
583 /* Parse options from a wordlist */
584 int getword
__P((FILE *f
, char *word
, int *newlinep
, char *filename
));
585 /* Read a word from a file */
586 void option_error
__P((char *fmt
, ...));
587 /* Print an error message about an option */
588 int int_option
__P((char *, int *));
589 /* Simplified number_option for decimal ints */
590 void add_options
__P((option_t
*)); /* Add extra options */
591 void check_options
__P((void)); /* check values after all options parsed */
592 int remove_option
__P((char *)); /* Disable the specified option */
593 int override_value
__P((const char *, int, const char *));
594 /* override value if permitted by priority */
595 void print_options
__P((void (*) __P((void *, char *, ...)), void *));
596 /* print out values of all options */
598 int parse_dotted_ip
__P((char *, u_int32_t
*));
601 * Hooks to enable plugins to change various things.
603 extern int (*new_phase_hook
) __P((int));
604 extern int (*idle_time_hook
) __P((struct ppp_idle
*));
605 extern int (*holdoff_hook
) __P((void));
606 extern int (*pap_check_hook
) __P((void));
607 extern int (*pap_auth_hook
) __P((char *user
, char *passwd
, char **msgp
,
608 struct wordlist
**paddrs
,
609 struct wordlist
**popts
));
610 extern void (*pap_logout_hook
) __P((void));
611 extern int (*pap_passwd_hook
) __P((char *user
, char *passwd
));
612 extern void (*ip_up_hook
) __P((void));
613 extern void (*ip_down_hook
) __P((void));
614 extern void (*ip_choose_hook
) __P((u_int32_t
*));
617 * Inline versions of get/put char/short/long.
618 * Pointer is advanced; we assume that both arguments
619 * are lvalues and will already be in registers.
620 * cp MUST be u_char *.
622 #define GETCHAR(c, cp) { \
625 #define PUTCHAR(c, cp) { \
626 *(cp)++ = (u_char) (c); \
630 #define GETSHORT(s, cp) { \
631 (s) = *(cp)++ << 8; \
634 #define PUTSHORT(s, cp) { \
635 *(cp)++ = (u_char) ((s) >> 8); \
636 *(cp)++ = (u_char) (s); \
639 #define GETLONG(l, cp) { \
640 (l) = *(cp)++ << 8; \
641 (l) |= *(cp)++; (l) <<= 8; \
642 (l) |= *(cp)++; (l) <<= 8; \
645 #define PUTLONG(l, cp) { \
646 *(cp)++ = (u_char) ((l) >> 24); \
647 *(cp)++ = (u_char) ((l) >> 16); \
648 *(cp)++ = (u_char) ((l) >> 8); \
649 *(cp)++ = (u_char) (l); \
652 #define INCPTR(n, cp) ((cp) += (n))
653 #define DECPTR(n, cp) ((cp) -= (n))
656 * System dependent definitions for user-level 4.3BSD UNIX implementation.
659 #define TIMEOUT(r, f, t) timeout((r), (f), (t), 0)
660 #define UNTIMEOUT(r, f) untimeout((r), (f))
662 #define BCOPY(s, d, l) memcpy(d, s, l)
663 #define BZERO(s, n) memset(s, 0, n)
665 #define PRINTMSG(m, l) { info("Remote message: %0.*v", l, m); }
668 * MAKEHEADER - Add Header fields to a packet.
670 #define MAKEHEADER(p, t) { \
671 PUTCHAR(PPP_ALLSTATIONS, p); \
672 PUTCHAR(PPP_UI, p); \
676 * Exit status values.
679 #define EXIT_FATAL_ERROR 1
680 #define EXIT_OPTION_ERROR 2
681 #define EXIT_NOT_ROOT 3
682 #define EXIT_NO_KERNEL_SUPPORT 4
683 #define EXIT_USER_REQUEST 5
684 #define EXIT_LOCK_FAILED 6
685 #define EXIT_OPEN_FAILED 7
686 #define EXIT_CONNECT_FAILED 8
687 #define EXIT_PTYCMD_FAILED 9
688 #define EXIT_NEGOTIATION_FAILED 10
689 #define EXIT_PEER_AUTH_FAILED 11
690 #define EXIT_IDLE_TIMEOUT 12
691 #define EXIT_CONNECT_TIME 13
692 #define EXIT_CALLBACK 14
693 #define EXIT_PEER_DEAD 15
694 #define EXIT_HANGUP 16
695 #define EXIT_LOOPBACK 17
696 #define EXIT_INIT_FAILED 18
697 #define EXIT_AUTH_TOPEER_FAILED 19
700 * Debug macros. Slightly useful for finding bugs in pppd, not particularly
701 * useful for finding out why your connection isn't being established.
708 #define DEBUGIPV6CP 1
713 #ifndef LOG_PPP /* we use LOG_LOCAL2 for syslog by default */
714 #if defined(DEBUGMAIN) || defined(DEBUGFSM) || defined(DEBUGSYS) \
715 || defined(DEBUGLCP) || defined(DEBUGIPCP) || defined(DEBUGUPAP) \
716 || defined(DEBUGCHAP) || defined(DEBUG) || defined(DEBUGIPV6CP)
717 #define LOG_PPP LOG_LOCAL2
719 #define LOG_PPP LOG_DAEMON
724 #define MAINDEBUG(x) if (debug) dbglog x
730 #define SYSDEBUG(x) if (debug) dbglog x
736 #define FSMDEBUG(x) if (debug) dbglog x
742 #define LCPDEBUG(x) if (debug) dbglog x
748 #define IPCPDEBUG(x) if (debug) dbglog x
754 #define IPV6CPDEBUG(x) if (debug) dbglog x
756 #define IPV6CPDEBUG(x)
760 #define UPAPDEBUG(x) if (debug) dbglog x
766 #define CHAPDEBUG(x) if (debug) dbglog x
772 #define IPXCPDEBUG(x) if (debug) dbglog x
774 #define IPXCPDEBUG(x)
778 #if defined(sun) || defined(SYSV) || defined(POSIX_SOURCE)
782 #endif /* defined(sun) || defined(SYSV) || defined(POSIX_SOURCE) */
786 #define MIN(a, b) ((a) < (b)? (a): (b))
789 #define MAX(a, b) ((a) > (b)? (a): (b))
792 #endif /* __PPP_H__ */