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 1.58 2001/03/08 05:11:16 paulus 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 doing PPP on the channel */
365 void (*disconnect) __P((void));
366 /* set the transmit-side PPP parameters of the channel */
367 void (*send_config) __P((int, u_int32_t, int, int));
368 /* set the receive-side PPP parameters of the channel */
369 void (*recv_config) __P((int, u_int32_t, int, int));
370 /* cleanup on error or normal exit */
371 void (*cleanup) __P((void));
372 /* close the device, called in children after fork */
373 void (*close) __P((void));
376 extern struct channel *the_channel;
378 #define ppp_send_config(unit, mtu, accm, pc, acc) \
380 if (the_channel->send_config) \
381 (*the_channel->send_config)((mtu), (accm), (pc), (acc)); \
384 #define ppp_recv_config(unit, mtu, accm, pc, acc) \
386 if (the_channel->send_config) \
387 (*the_channel->recv_config)((mtu), (accm), (pc), (acc)); \
394 /* Procedures exported from main.c. */
395 void set_ifunit __P((int)); /* set stuff that depends on ifunit */
396 void detach __P((void)); /* Detach from controlling tty */
397 void die __P((int)); /* Cleanup and exit */
398 void quit __P((void)); /* like die(1) */
399 void novm __P((char *)); /* Say we ran out of memory, and die */
400 void timeout __P((void (*func)(void *), void *arg, int s, int us));
401 /* Call func(arg) after s.us seconds */
402 void untimeout __P((void (*func)(void *), void *arg));
403 /* Cancel call to func(arg) */
404 void record_child __P((int, char *, void (*) (void *), void *));
405 int device_script __P((char *cmd, int in, int out, int dont_wait));
406 /* Run `cmd' with given stdin and stdout */
407 pid_t run_program __P((char *prog, char **args, int must_exist,
408 void (*done)(void *), void *arg));
409 /* Run program prog with args in child */
410 void reopen_log __P((void)); /* (re)open the connection to syslog */
411 void update_link_stats __P((int)); /* Get stats at link termination */
412 void script_setenv __P((char *, char *, int)); /* set script env var */
413 void script_unsetenv __P((char *)); /* unset script env var */
414 void new_phase __P((int)); /* signal start of new phase */
415 void add_notifier __P((struct notifier **, notify_func, void *));
416 void remove_notifier __P((struct notifier **, notify_func, void *));
417 void notify __P((struct notifier *, int));
419 /* Procedures exported from tty.c. */
420 void tty_init __P((void));
422 /* Procedures exported from utils.c. */
423 void log_packet __P((u_char *, int, char *, int));
424 /* Format a packet and log it with syslog */
425 void print_string __P((char *, int, void (*) (void *, char *, ...),
426 void *)); /* Format a string for output */
427 int slprintf __P((char *, int, char *, ...)); /* sprintf++ */
428 int vslprintf __P((char *, int, char *, va_list)); /* vsprintf++ */
429 size_t strlcpy __P((char *, const char *, size_t)); /* safe strcpy */
430 size_t strlcat __P((char *, const char *, size_t)); /* safe strncpy */
431 void dbglog __P((char *, ...)); /* log a debug message */
432 void info __P((char *, ...)); /* log an informational message */
433 void notice __P((char *, ...)); /* log a notice-level message */
434 void warn __P((char *, ...)); /* log a warning message */
435 void error __P((char *, ...)); /* log an error message */
436 void fatal __P((char *, ...)); /* log an error message and die(1) */
437 void init_pr_log __P((char *, int)); /* initialize for using pr_log */
438 void pr_log __P((void *, char *, ...)); /* printer fn, output to syslog */
439 void end_pr_log __P((void)); /* finish up after using pr_log */
441 /* Procedures exported from auth.c */
442 void link_required __P((int)); /* we are starting to use the link */
443 void link_terminated __P((int)); /* we are finished with the link */
444 void link_down __P((int)); /* the LCP layer has left the Opened state */
445 void link_established __P((int)); /* the link is up; authenticate now */
446 void start_networks __P((void)); /* start all the network control protos */
447 void np_up __P((int, int)); /* a network protocol has come up */
448 void np_down __P((int, int)); /* a network protocol has gone down */
449 void np_finished __P((int, int)); /* a network protocol no longer needs link */
450 void auth_peer_fail __P((int, int));
451 /* peer failed to authenticate itself */
452 void auth_peer_success __P((int, int, char *, int));
453 /* peer successfully authenticated itself */
454 void auth_withpeer_fail __P((int, int));
455 /* we failed to authenticate ourselves */
456 void auth_withpeer_success __P((int, int));
457 /* we successfully authenticated ourselves */
458 void auth_check_options __P((void));
459 /* check authentication options supplied */
460 void auth_reset __P((int)); /* check what secrets we have */
461 int check_passwd __P((int, char *, int, char *, int, char **));
462 /* Check peer-supplied username/password */
463 int get_secret __P((int, char *, char *, char *, int *, int));
464 /* get "secret" for chap */
465 int auth_ip_addr __P((int, u_int32_t));
466 /* check if IP address is authorized */
467 int bad_ip_adrs __P((u_int32_t));
468 /* check if IP address is unreasonable */
470 /* Procedures exported from demand.c */
471 void demand_conf __P((void)); /* config interface(s) for demand-dial */
472 void demand_block __P((void)); /* set all NPs to queue up packets */
473 void demand_unblock __P((void)); /* set all NPs to pass packets */
474 void demand_discard __P((void)); /* set all NPs to discard packets */
475 void demand_rexmit __P((int)); /* retransmit saved frames for an NP */
476 int loop_chars __P((unsigned char *, int)); /* process chars from loopback */
477 int loop_frame __P((unsigned char *, int)); /* should we bring link up? */
479 /* Procedures exported from multilink.c */
480 void mp_check_options __P((void)); /* Check multilink-related options */
481 int mp_join_bundle __P((void)); /* join our link to an appropriate bundle */
482 char *epdisc_to_str __P((struct epdisc *)); /* string from endpoint discrim. */
483 int str_to_epdisc __P((struct epdisc *, char *)); /* endpt disc. from str */
485 /* Procedures exported from sys-*.c */
486 void sys_init __P((void)); /* Do system-dependent initialization */
487 void sys_cleanup __P((void)); /* Restore system state before exiting */
488 int sys_check_options __P((void)); /* Check options specified */
489 void sys_close __P((void)); /* Clean up in a child before execing */
490 int ppp_available __P((void)); /* Test whether ppp kernel support exists */
491 int get_pty __P((int *, int *, char *, int)); /* Get pty master/slave */
492 int open_ppp_loopback __P((void)); /* Open loopback for demand-dialling */
493 int establish_ppp __P((int)); /* Turn serial port into a ppp interface */
494 void restore_loop __P((void)); /* Transfer ppp unit back to loopback */
495 void disestablish_ppp __P((int)); /* Restore port to normal operation */
496 void make_new_bundle __P((int, int, int, int)); /* Create new bundle */
497 int bundle_attach __P((int)); /* Attach link to existing bundle */
498 void cfg_bundle __P((int, int, int, int)); /* Configure existing bundle */
499 void clean_check __P((void)); /* Check if line was 8-bit clean */
500 void set_up_tty __P((int, int)); /* Set up port's speed, parameters, etc. */
501 void restore_tty __P((int)); /* Restore port's original parameters */
502 void setdtr __P((int, int)); /* Raise or lower port's DTR line */
503 void output __P((int, u_char *, int)); /* Output a PPP packet */
504 void wait_input __P((struct timeval *));
505 /* Wait for input, with timeout */
506 void add_fd __P((int)); /* Add fd to set to wait for */
507 void remove_fd __P((int)); /* Remove fd from set to wait for */
508 int read_packet __P((u_char *)); /* Read PPP packet */
509 int get_loop_output __P((void)); /* Read pkts from loopback */
510 void tty_send_config __P((int, u_int32_t, int, int));
511 /* Configure i/f transmit parameters */
512 void tty_set_xaccm __P((ext_accm));
513 /* Set extended transmit ACCM */
514 void tty_recv_config __P((int, u_int32_t, int, int));
515 /* Configure i/f receive parameters */
516 int ccp_test __P((int, u_char *, int, int));
517 /* Test support for compression scheme */
518 void ccp_flags_set __P((int, int, int));
519 /* Set kernel CCP state */
520 int ccp_fatal_error __P((int)); /* Test for fatal decomp error in kernel */
521 int get_idle_time __P((int, struct ppp_idle *));
522 /* Find out how long link has been idle */
523 int get_ppp_stats __P((int, struct pppd_stats *));
524 /* Return link statistics */
525 void netif_set_mtu __P((int, int)); /* Set PPP interface MTU */
526 int sifvjcomp __P((int, int, int, int));
527 /* Configure VJ TCP header compression */
528 int sifup __P((int)); /* Configure i/f up for one protocol */
529 int sifnpmode __P((int u, int proto, enum NPmode mode));
530 /* Set mode for handling packets for proto */
531 int sifdown __P((int)); /* Configure i/f down for one protocol */
532 int sifaddr __P((int, u_int32_t, u_int32_t, u_int32_t));
533 /* Configure IPv4 addresses for i/f */
534 int cifaddr __P((int, u_int32_t, u_int32_t));
535 /* Reset i/f IP addresses */
537 int sif6addr __P((int, eui64_t, eui64_t));
538 /* Configure IPv6 addresses for i/f */
539 int cif6addr __P((int, eui64_t, eui64_t));
540 /* Remove an IPv6 address from i/f */
542 int sifdefaultroute __P((int, u_int32_t, u_int32_t));
543 /* Create default route through i/f */
544 int cifdefaultroute __P((int, u_int32_t, u_int32_t));
545 /* Delete default route through i/f */
546 int sifproxyarp __P((int, u_int32_t));
547 /* Add proxy ARP entry for peer */
548 int cifproxyarp __P((int, u_int32_t));
549 /* Delete proxy ARP entry for peer */
550 u_int32_t GetMask __P((u_int32_t)); /* Get appropriate netmask for address */
551 int lock __P((char *)); /* Create lock file for device */
552 int relock __P((int)); /* Rewrite lock file with new pid */
553 void unlock __P((void)); /* Delete previously-created lock file */
554 void logwtmp __P((const char *, const char *, const char *));
555 /* Write entry to wtmp file */
556 int get_host_seed __P((void)); /* Get host-dependent random number seed */
557 int have_route_to __P((u_int32_t)); /* Check if route to addr exists */
559 int set_filters __P((struct bpf_program *pass, struct bpf_program *active));
560 /* Set filter programs in kernel */
563 int sipxfaddr __P((int, unsigned long, unsigned char *));
564 int cipxfaddr __P((int));
566 int get_if_hwaddr __P((u_char *addr, char *name));
567 char *get_first_ethernet __P((void));
569 /* Procedures exported from options.c */
570 int parse_args __P((int argc, char **argv));
571 /* Parse options from arguments given */
572 int options_from_file __P((char *filename, int must_exist, int check_prot,
574 /* Parse options from an options file */
575 int options_from_user __P((void)); /* Parse options from user's .ppprc */
576 int options_for_tty __P((void)); /* Parse options from /etc/ppp/options.tty */
577 int options_from_list __P((struct wordlist *, int privileged));
578 /* Parse options from a wordlist */
579 int getword __P((FILE *f, char *word, int *newlinep, char *filename));
580 /* Read a word from a file */
581 void option_error __P((char *fmt, ...));
582 /* Print an error message about an option */
583 int int_option __P((char *, int *));
584 /* Simplified number_option for decimal ints */
585 void add_options __P((option_t *)); /* Add extra options */
586 void check_options __P((void)); /* check values after all options parsed */
587 int override_value __P((const char *, int, const char *));
588 /* override value if permitted by priority */
589 void print_options __P((void (*) __P((void *, char *, ...)), void *));
590 /* print out values of all options */
592 int parse_dotted_ip __P((char *, u_int32_t *));
595 * Hooks to enable plugins to change various things.
597 extern int (*new_phase_hook) __P((int));
598 extern int (*idle_time_hook) __P((struct ppp_idle *));
599 extern int (*holdoff_hook) __P((void));
600 extern int (*pap_check_hook) __P((void));
601 extern int (*pap_auth_hook) __P((char *user, char *passwd, char **msgp,
602 struct wordlist **paddrs,
603 struct wordlist **popts));
604 extern void (*pap_logout_hook) __P((void));
605 extern int (*pap_passwd_hook) __P((char *user, char *passwd));
606 extern void (*ip_up_hook) __P((void));
607 extern void (*ip_down_hook) __P((void));
608 extern void (*ip_choose_hook) __P((u_int32_t *));
611 * Inline versions of get/put char/short/long.
612 * Pointer is advanced; we assume that both arguments
613 * are lvalues and will already be in registers.
614 * cp MUST be u_char *.
616 #define GETCHAR(c, cp) { \
619 #define PUTCHAR(c, cp) { \
620 *(cp)++ = (u_char) (c); \
624 #define GETSHORT(s, cp) { \
625 (s) = *(cp)++ << 8; \
628 #define PUTSHORT(s, cp) { \
629 *(cp)++ = (u_char) ((s) >> 8); \
630 *(cp)++ = (u_char) (s); \
633 #define GETLONG(l, cp) { \
634 (l) = *(cp)++ << 8; \
635 (l) |= *(cp)++; (l) <<= 8; \
636 (l) |= *(cp)++; (l) <<= 8; \
639 #define PUTLONG(l, cp) { \
640 *(cp)++ = (u_char) ((l) >> 24); \
641 *(cp)++ = (u_char) ((l) >> 16); \
642 *(cp)++ = (u_char) ((l) >> 8); \
643 *(cp)++ = (u_char) (l); \
646 #define INCPTR(n, cp) ((cp) += (n))
647 #define DECPTR(n, cp) ((cp) -= (n))
650 * System dependent definitions for user-level 4.3BSD UNIX implementation.
653 #define TIMEOUT(r, f, t) timeout((r), (f), (t), 0)
654 #define UNTIMEOUT(r, f) untimeout((r), (f))
656 #define BCOPY(s, d, l) memcpy(d, s, l)
657 #define BZERO(s, n) memset(s, 0, n)
659 #define PRINTMSG(m, l) { info("Remote message: %0.*v", l, m); }
662 * MAKEHEADER - Add Header fields to a packet.
664 #define MAKEHEADER(p, t) { \
665 PUTCHAR(PPP_ALLSTATIONS, p); \
666 PUTCHAR(PPP_UI, p); \
670 * Exit status values.
673 #define EXIT_FATAL_ERROR 1
674 #define EXIT_OPTION_ERROR 2
675 #define EXIT_NOT_ROOT 3
676 #define EXIT_NO_KERNEL_SUPPORT 4
677 #define EXIT_USER_REQUEST 5
678 #define EXIT_LOCK_FAILED 6
679 #define EXIT_OPEN_FAILED 7
680 #define EXIT_CONNECT_FAILED 8
681 #define EXIT_PTYCMD_FAILED 9
682 #define EXIT_NEGOTIATION_FAILED 10
683 #define EXIT_PEER_AUTH_FAILED 11
684 #define EXIT_IDLE_TIMEOUT 12
685 #define EXIT_CONNECT_TIME 13
686 #define EXIT_CALLBACK 14
687 #define EXIT_PEER_DEAD 15
688 #define EXIT_HANGUP 16
689 #define EXIT_LOOPBACK 17
690 #define EXIT_INIT_FAILED 18
691 #define EXIT_AUTH_TOPEER_FAILED 19
694 * Debug macros. Slightly useful for finding bugs in pppd, not particularly
695 * useful for finding out why your connection isn't being established.
702 #define DEBUGIPV6CP 1
707 #ifndef LOG_PPP /* we use LOG_LOCAL2 for syslog by default */
708 #if defined(DEBUGMAIN) || defined(DEBUGFSM) || defined(DEBUGSYS) \
709 || defined(DEBUGLCP) || defined(DEBUGIPCP) || defined(DEBUGUPAP) \
710 || defined(DEBUGCHAP) || defined(DEBUG) || defined(DEBUGIPV6CP)
711 #define LOG_PPP LOG_LOCAL2
713 #define LOG_PPP LOG_DAEMON
718 #define MAINDEBUG(x) if (debug) dbglog x
724 #define SYSDEBUG(x) if (debug) dbglog x
730 #define FSMDEBUG(x) if (debug) dbglog x
736 #define LCPDEBUG(x) if (debug) dbglog x
742 #define IPCPDEBUG(x) if (debug) dbglog x
748 #define IPV6CPDEBUG(x) if (debug) dbglog x
750 #define IPV6CPDEBUG(x)
754 #define UPAPDEBUG(x) if (debug) dbglog x
760 #define CHAPDEBUG(x) if (debug) dbglog x
766 #define IPXCPDEBUG(x) if (debug) dbglog x
768 #define IPXCPDEBUG(x)
772 #if defined(sun) || defined(SYSV) || defined(POSIX_SOURCE)
776 #endif /* defined(sun) || defined(SYSV) || defined(POSIX_SOURCE) */
780 #define MIN(a, b) ((a) < (b)? (a): (b))
783 #define MAX(a, b) ((a) > (b)? (a): (b))
786 #endif /* __PPP_H__ */