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 1.64 2002/01/22 16:02:58 dfs 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;
150 unsigned int pkts_in;
151 unsigned int pkts_out;
154 /* Used for storing a sequence of words. Usually malloced. */
156 struct wordlist *next;
160 /* An endpoint discriminator, used with multilink. */
161 #define MAX_ENDP_LEN 20 /* maximum length of discriminator value */
164 unsigned char length;
165 unsigned char value[MAX_ENDP_LEN];
168 /* values for epdisc.class */
169 #define EPD_NULL 0 /* null discriminator, no data */
174 #define EPD_PHONENUM 5
176 typedef void (*notify_func) __P((void *, int));
179 struct notifier *next;
188 extern int hungup; /* Physical layer has disconnected */
189 extern int ifunit; /* Interface unit number */
190 extern char ifname[]; /* Interface name */
191 extern char hostname[]; /* Our hostname */
192 extern u_char outpacket_buf[]; /* Buffer for outgoing packets */
193 extern int phase; /* Current state of link - see values below */
194 extern int baud_rate; /* Current link speed in bits/sec */
195 extern char *progname; /* Name of this program */
196 extern int redirect_stderr;/* Connector's stderr should go to file */
197 extern char peer_authname[];/* Authenticated name of peer */
198 extern int privileged; /* We were run by real-uid root */
199 extern int need_holdoff; /* Need holdoff period after link terminates */
200 extern char **script_env; /* Environment variables for scripts */
201 extern int detached; /* Have detached from controlling tty */
202 extern GIDSET_TYPE groups[NGROUPS_MAX]; /* groups the user is in */
203 extern int ngroups; /* How many groups valid in groups */
204 extern struct pppd_stats link_stats; /* byte/packet counts etc. for link */
205 extern int link_stats_valid; /* set if link_stats is valid */
206 extern int link_connect_time; /* time the link was up for */
207 extern int using_pty; /* using pty as device (notty or pty opt.) */
208 extern int log_to_fd; /* logging to this fd as well as syslog */
209 extern bool log_default; /* log_to_fd is default (stdout) */
210 extern char *no_ppp_msg; /* message to print if ppp not in kernel */
211 extern volatile int status; /* exit status for pppd */
212 extern bool devnam_fixed; /* can no longer change devnam */
213 extern int unsuccess; /* # unsuccessful connection attempts */
214 extern int do_callback; /* set if we want to do callback next */
215 extern int doing_callback; /* set if this is a callback */
216 extern char ppp_devnam[MAXPATHLEN];
217 extern char remote_number[MAXNAMELEN]; /* Remote telephone number, if avail. */
218 extern int ppp_session_number; /* Session number (eg PPPoE session) */
220 extern int listen_time; /* time to listen first (ms) */
221 extern struct notifier *pidchange; /* for notifications of pid changing */
222 extern struct notifier *phasechange; /* for notifications of phase changes */
223 extern struct notifier *exitnotify; /* for notification that we're exiting */
224 extern struct notifier *sigreceived; /* notification of received signal */
225 extern struct notifier *ip_up_notifier; /* IPCP has come up */
226 extern struct notifier *ip_down_notifier; /* IPCP has gone down */
227 extern struct notifier *auth_up_notifier; /* peer has authenticated */
228 extern struct notifier *link_down_notifier; /* link has gone down */
230 /* Values for do_callback and doing_callback */
231 #define CALLBACK_DIALIN 1 /* we are expecting the call back */
232 #define CALLBACK_DIALOUT 2 /* we are dialling out to call back */
235 * Variables set by command-line options.
238 extern int debug; /* Debug flag */
239 extern int kdebugflag; /* Tell kernel to print debug messages */
240 extern int default_device; /* Using /dev/tty or equivalent */
241 extern char devnam[MAXPATHLEN]; /* Device name */
242 extern int crtscts; /* Use hardware flow control */
243 extern bool modem; /* Use modem control lines */
244 extern int inspeed; /* Input/Output speed requested */
245 extern u_int32_t netmask; /* IP netmask to set on interface */
246 extern bool lockflag; /* Create lock file to lock the serial dev */
247 extern bool nodetach; /* Don't detach from controlling tty */
248 extern bool updetach; /* Detach from controlling tty when link up */
249 extern char *initializer; /* Script to initialize physical link */
250 extern char *connect_script; /* Script to establish physical link */
251 extern char *disconnect_script; /* Script to disestablish physical link */
252 extern char *welcomer; /* Script to welcome client after connection */
253 extern char *ptycommand; /* Command to run on other side of pty */
254 extern int maxconnect; /* Maximum connect time (seconds) */
255 extern char user[MAXNAMELEN];/* Our name for authenticating ourselves */
256 extern char passwd[MAXSECRETLEN]; /* Password for PAP or CHAP */
257 extern bool auth_required; /* Peer is required to authenticate */
258 extern bool persist; /* Reopen link after it goes down */
259 extern bool uselogin; /* Use /etc/passwd for checking PAP */
260 extern char our_name[MAXNAMELEN];/* Our name for authentication purposes */
261 extern char remote_name[MAXNAMELEN]; /* Peer's name for authentication */
262 extern bool explicit_remote;/* remote_name specified with remotename opt */
263 extern bool demand; /* Do dial-on-demand */
264 extern char *ipparam; /* Extra parameter for ip up/down scripts */
265 extern bool cryptpap; /* Others' PAP passwords are encrypted */
266 extern int idle_time_limit;/* Shut down link if idle for this long */
267 extern int holdoff; /* Dead time before restarting */
268 extern bool holdoff_specified; /* true if user gave a holdoff value */
269 extern bool notty; /* Stdin/out is not a tty */
270 extern char *pty_socket; /* Socket to connect to pty */
271 extern char *record_file; /* File to record chars sent/received */
272 extern bool sync_serial; /* Device is synchronous serial device */
273 extern int maxfail; /* Max # of unsuccessful connection attempts */
274 extern char linkname[MAXPATHLEN]; /* logical name for link */
275 extern bool tune_kernel; /* May alter kernel settings as necessary */
276 extern int connect_delay; /* Time to delay after connect script */
277 extern int max_data_rate; /* max bytes/sec through charshunt */
278 extern int req_unit; /* interface unit number to use */
279 extern bool multilink; /* enable multilink operation */
280 extern bool noendpoint; /* don't send or accept endpt. discrim. */
281 extern char *bundle_name; /* bundle name for multilink */
282 extern bool dump_options; /* print out option values */
283 extern bool dryrun; /* check everything, print options, exit */
286 extern struct bpf_program pass_filter; /* Filter for pkts to pass */
287 extern struct bpf_program active_filter; /* Filter for link-active pkts */
291 extern bool ms_lanman; /* Use LanMan password instead of NT */
292 /* Has meaning only with MS-CHAP challenges */
295 extern char *current_option; /* the name of the option being parsed */
296 extern int privileged_option; /* set iff the current option came from root */
297 extern char *option_source; /* string saying where the option came from */
298 extern int option_priority; /* priority of current options */
304 #define PHASE_INITIALIZE 1
305 #define PHASE_SERIALCONN 2
306 #define PHASE_DORMANT 3
307 #define PHASE_ESTABLISH 4
308 #define PHASE_AUTHENTICATE 5
309 #define PHASE_CALLBACK 6
310 #define PHASE_NETWORK 7
311 #define PHASE_RUNNING 8
312 #define PHASE_TERMINATE 9
313 #define PHASE_DISCONNECT 10
314 #define PHASE_HOLDOFF 11
317 * The following struct gives the addresses of procedures to call
318 * for a particular protocol.
321 u_short protocol; /* PPP protocol number */
322 /* Initialization procedure */
323 void (*init) __P((int unit));
324 /* Process a received packet */
325 void (*input) __P((int unit, u_char *pkt, int len));
326 /* Process a received protocol-reject */
327 void (*protrej) __P((int unit));
328 /* Lower layer has come up */
329 void (*lowerup) __P((int unit));
330 /* Lower layer has gone down */
331 void (*lowerdown) __P((int unit));
332 /* Open the protocol */
333 void (*open) __P((int unit));
334 /* Close the protocol */
335 void (*close) __P((int unit, char *reason));
336 /* Print a packet in readable form */
337 int (*printpkt) __P((u_char *pkt, int len,
338 void (*printer) __P((void *, char *, ...)),
340 /* Process a received data packet */
341 void (*datainput) __P((int unit, u_char *pkt, int len));
342 bool enabled_flag; /* 0 iff protocol is disabled */
343 char *name; /* Text name of protocol */
344 char *data_name; /* Text name of corresponding data protocol */
345 option_t *options; /* List of command-line options */
346 /* Check requested options, assign defaults */
347 void (*check_options) __P((void));
348 /* Configure interface for demand-dial */
349 int (*demand_conf) __P((int unit));
350 /* Say whether to bring up link for this pkt */
351 int (*active_pkt) __P((u_char *pkt, int len));
354 /* Table of pointers to supported protocols */
355 extern struct protent *protocols[];
358 * This struct contains pointers to a set of procedures for
359 * doing operations on a "channel". A channel provides a way
360 * to send and receive PPP packets - the canonical example is
361 * a serial port device in PPP line discipline (or equivalently
362 * with PPP STREAMS modules pushed onto it).
365 /* set of options for this channel */
367 /* find and process a per-channel options file */
368 void (*process_extra_options) __P((void));
369 /* check all the options that have been given */
370 void (*check_options) __P((void));
371 /* get the channel ready to do PPP, return a file descriptor */
372 int (*connect) __P((void));
373 /* we're finished with the channel */
374 void (*disconnect) __P((void));
375 /* put the channel into PPP `mode' */
376 int (*establish_ppp) __P((int));
377 /* take the channel out of PPP `mode', restore loopback if demand */
378 void (*disestablish_ppp) __P((int));
379 /* set the transmit-side PPP parameters of the channel */
380 void (*send_config) __P((int, u_int32_t, int, int));
381 /* set the receive-side PPP parameters of the channel */
382 void (*recv_config) __P((int, u_int32_t, int, int));
383 /* cleanup on error or normal exit */
384 void (*cleanup) __P((void));
385 /* close the device, called in children after fork */
386 void (*close) __P((void));
389 extern struct channel *the_channel;
391 #define ppp_send_config(unit, mtu, accm, pc, acc) \
393 if (the_channel->send_config) \
394 (*the_channel->send_config)((mtu), (accm), (pc), (acc)); \
397 #define ppp_recv_config(unit, mtu, accm, pc, acc) \
399 if (the_channel->send_config) \
400 (*the_channel->recv_config)((mtu), (accm), (pc), (acc)); \
407 /* Procedures exported from main.c. */
408 void set_ifunit __P((int)); /* set stuff that depends on ifunit */
409 void detach __P((void)); /* Detach from controlling tty */
410 void die __P((int)); /* Cleanup and exit */
411 void quit __P((void)); /* like die(1) */
412 void novm __P((char *)); /* Say we ran out of memory, and die */
413 void timeout __P((void (*func)(void *), void *arg, int s, int us));
414 /* Call func(arg) after s.us seconds */
415 void untimeout __P((void (*func)(void *), void *arg));
416 /* Cancel call to func(arg) */
417 void record_child __P((int, char *, void (*) (void *), void *));
418 int device_script __P((char *cmd, int in, int out, int dont_wait));
419 /* Run `cmd' with given stdin and stdout */
420 pid_t run_program __P((char *prog, char **args, int must_exist,
421 void (*done)(void *), void *arg));
422 /* Run program prog with args in child */
423 void reopen_log __P((void)); /* (re)open the connection to syslog */
424 void update_link_stats __P((int)); /* Get stats at link termination */
425 void script_setenv __P((char *, char *, int)); /* set script env var */
426 void script_unsetenv __P((char *)); /* unset script env var */
427 void new_phase __P((int)); /* signal start of new phase */
428 void add_notifier __P((struct notifier **, notify_func, void *));
429 void remove_notifier __P((struct notifier **, notify_func, void *));
430 void notify __P((struct notifier *, int));
432 /* Procedures exported from tty.c. */
433 void tty_init __P((void));
435 /* Procedures exported from utils.c. */
436 void log_packet __P((u_char *, int, char *, int));
437 /* Format a packet and log it with syslog */
438 void print_string __P((char *, int, void (*) (void *, char *, ...),
439 void *)); /* Format a string for output */
440 int slprintf __P((char *, int, char *, ...)); /* sprintf++ */
441 int vslprintf __P((char *, int, char *, va_list)); /* vsprintf++ */
442 size_t strlcpy __P((char *, const char *, size_t)); /* safe strcpy */
443 size_t strlcat __P((char *, const char *, size_t)); /* safe strncpy */
444 void dbglog __P((char *, ...)); /* log a debug message */
445 void info __P((char *, ...)); /* log an informational message */
446 void notice __P((char *, ...)); /* log a notice-level message */
447 void warn __P((char *, ...)); /* log a warning message */
448 void error __P((char *, ...)); /* log an error message */
449 void fatal __P((char *, ...)); /* log an error message and die(1) */
450 void init_pr_log __P((char *, int)); /* initialize for using pr_log */
451 void pr_log __P((void *, char *, ...)); /* printer fn, output to syslog */
452 void end_pr_log __P((void)); /* finish up after using pr_log */
453 void dump_packet __P((const char *, u_char *, int));
454 /* dump packet to debug log if interesting */
456 /* Procedures exported from auth.c */
457 void link_required __P((int)); /* we are starting to use the link */
458 void link_terminated __P((int)); /* we are finished with the link */
459 void link_down __P((int)); /* the LCP layer has left the Opened state */
460 void link_established __P((int)); /* the link is up; authenticate now */
461 void start_networks __P((void)); /* start all the network control protos */
462 void np_up __P((int, int)); /* a network protocol has come up */
463 void np_down __P((int, int)); /* a network protocol has gone down */
464 void np_finished __P((int, int)); /* a network protocol no longer needs link */
465 void auth_peer_fail __P((int, int));
466 /* peer failed to authenticate itself */
467 void auth_peer_success __P((int, int, char *, int));
468 /* peer successfully authenticated itself */
469 void auth_withpeer_fail __P((int, int));
470 /* we failed to authenticate ourselves */
471 void auth_withpeer_success __P((int, int));
472 /* we successfully authenticated ourselves */
473 void auth_check_options __P((void));
474 /* check authentication options supplied */
475 void auth_reset __P((int)); /* check what secrets we have */
476 int check_passwd __P((int, char *, int, char *, int, char **));
477 /* Check peer-supplied username/password */
478 int get_secret __P((int, char *, char *, char *, int *, int));
479 /* get "secret" for chap */
480 int auth_ip_addr __P((int, u_int32_t));
481 /* check if IP address is authorized */
482 int bad_ip_adrs __P((u_int32_t));
483 /* check if IP address is unreasonable */
485 /* Procedures exported from demand.c */
486 void demand_conf __P((void)); /* config interface(s) for demand-dial */
487 void demand_block __P((void)); /* set all NPs to queue up packets */
488 void demand_unblock __P((void)); /* set all NPs to pass packets */
489 void demand_discard __P((void)); /* set all NPs to discard packets */
490 void demand_rexmit __P((int)); /* retransmit saved frames for an NP */
491 int loop_chars __P((unsigned char *, int)); /* process chars from loopback */
492 int loop_frame __P((unsigned char *, int)); /* should we bring link up? */
494 /* Procedures exported from multilink.c */
495 void mp_check_options __P((void)); /* Check multilink-related options */
496 int mp_join_bundle __P((void)); /* join our link to an appropriate bundle */
497 char *epdisc_to_str __P((struct epdisc *)); /* string from endpoint discrim. */
498 int str_to_epdisc __P((struct epdisc *, char *)); /* endpt disc. from str */
500 /* Procedures exported from sys-*.c */
501 void sys_init __P((void)); /* Do system-dependent initialization */
502 void sys_cleanup __P((void)); /* Restore system state before exiting */
503 int sys_check_options __P((void)); /* Check options specified */
504 void sys_close __P((void)); /* Clean up in a child before execing */
505 int ppp_available __P((void)); /* Test whether ppp kernel support exists */
506 int get_pty __P((int *, int *, char *, int)); /* Get pty master/slave */
507 int open_ppp_loopback __P((void)); /* Open loopback for demand-dialling */
508 int tty_establish_ppp __P((int)); /* Turn serial port into a ppp interface */
509 void tty_disestablish_ppp __P((int)); /* Restore port to normal operation */
510 void generic_disestablish_ppp __P((int dev_fd)); /* Restore device setting */
511 int generic_establish_ppp __P((int dev_fd)); /* Make a ppp interface */
512 void make_new_bundle __P((int, int, int, int)); /* Create new bundle */
513 int bundle_attach __P((int)); /* Attach link to existing bundle */
514 void cfg_bundle __P((int, int, int, int)); /* Configure existing bundle */
515 void clean_check __P((void)); /* Check if line was 8-bit clean */
516 void set_up_tty __P((int, int)); /* Set up port's speed, parameters, etc. */
517 void restore_tty __P((int)); /* Restore port's original parameters */
518 void setdtr __P((int, int)); /* Raise or lower port's DTR line */
519 void output __P((int, u_char *, int)); /* Output a PPP packet */
520 void wait_input __P((struct timeval *));
521 /* Wait for input, with timeout */
522 void add_fd __P((int)); /* Add fd to set to wait for */
523 void remove_fd __P((int)); /* Remove fd from set to wait for */
524 int read_packet __P((u_char *)); /* Read PPP packet */
525 int get_loop_output __P((void)); /* Read pkts from loopback */
526 void tty_send_config __P((int, u_int32_t, int, int));
527 /* Configure i/f transmit parameters */
528 void tty_set_xaccm __P((ext_accm));
529 /* Set extended transmit ACCM */
530 void tty_recv_config __P((int, u_int32_t, int, int));
531 /* Configure i/f receive parameters */
532 int ccp_test __P((int, u_char *, int, int));
533 /* Test support for compression scheme */
534 void ccp_flags_set __P((int, int, int));
535 /* Set kernel CCP state */
536 int ccp_fatal_error __P((int)); /* Test for fatal decomp error in kernel */
537 int get_idle_time __P((int, struct ppp_idle *));
538 /* Find out how long link has been idle */
539 int get_ppp_stats __P((int, struct pppd_stats *));
540 /* Return link statistics */
541 void netif_set_mtu __P((int, int)); /* Set PPP interface MTU */
542 int sifvjcomp __P((int, int, int, int));
543 /* Configure VJ TCP header compression */
544 int sifup __P((int)); /* Configure i/f up for one protocol */
545 int sifnpmode __P((int u, int proto, enum NPmode mode));
546 /* Set mode for handling packets for proto */
547 int sifdown __P((int)); /* Configure i/f down for one protocol */
548 int sifaddr __P((int, u_int32_t, u_int32_t, u_int32_t));
549 /* Configure IPv4 addresses for i/f */
550 int cifaddr __P((int, u_int32_t, u_int32_t));
551 /* Reset i/f IP addresses */
553 int sif6addr __P((int, eui64_t, eui64_t));
554 /* Configure IPv6 addresses for i/f */
555 int cif6addr __P((int, eui64_t, eui64_t));
556 /* Remove an IPv6 address from i/f */
558 int sifdefaultroute __P((int, u_int32_t, u_int32_t));
559 /* Create default route through i/f */
560 int cifdefaultroute __P((int, u_int32_t, u_int32_t));
561 /* Delete default route through i/f */
562 int sifproxyarp __P((int, u_int32_t));
563 /* Add proxy ARP entry for peer */
564 int cifproxyarp __P((int, u_int32_t));
565 /* Delete proxy ARP entry for peer */
566 u_int32_t GetMask __P((u_int32_t)); /* Get appropriate netmask for address */
567 int lock __P((char *)); /* Create lock file for device */
568 int relock __P((int)); /* Rewrite lock file with new pid */
569 void unlock __P((void)); /* Delete previously-created lock file */
570 void logwtmp __P((const char *, const char *, const char *));
571 /* Write entry to wtmp file */
572 int get_host_seed __P((void)); /* Get host-dependent random number seed */
573 int have_route_to __P((u_int32_t)); /* Check if route to addr exists */
575 int set_filters __P((struct bpf_program *pass, struct bpf_program *active));
576 /* Set filter programs in kernel */
579 int sipxfaddr __P((int, unsigned long, unsigned char *));
580 int cipxfaddr __P((int));
582 int get_if_hwaddr __P((u_char *addr, char *name));
583 char *get_first_ethernet __P((void));
585 /* Procedures exported from options.c */
586 int setipaddr __P((char *, char **, int)); /* Set local/remote ip addresses */
587 int parse_args __P((int argc, char **argv));
588 /* Parse options from arguments given */
589 int options_from_file __P((char *filename, int must_exist, int check_prot,
591 /* Parse options from an options file */
592 int options_from_user __P((void)); /* Parse options from user's .ppprc */
593 int options_for_tty __P((void)); /* Parse options from /etc/ppp/options.tty */
594 int options_from_list __P((struct wordlist *, int privileged));
595 /* Parse options from a wordlist */
596 int getword __P((FILE *f, char *word, int *newlinep, char *filename));
597 /* Read a word from a file */
598 void option_error __P((char *fmt, ...));
599 /* Print an error message about an option */
600 int int_option __P((char *, int *));
601 /* Simplified number_option for decimal ints */
602 void add_options __P((option_t *)); /* Add extra options */
603 void check_options __P((void)); /* check values after all options parsed */
604 int override_value __P((const char *, int, const char *));
605 /* override value if permitted by priority */
606 void print_options __P((void (*) __P((void *, char *, ...)), void *));
607 /* print out values of all options */
609 int parse_dotted_ip __P((char *, u_int32_t *));
612 * Hooks to enable plugins to change various things.
614 extern int (*new_phase_hook) __P((int));
615 extern int (*idle_time_hook) __P((struct ppp_idle *));
616 extern int (*holdoff_hook) __P((void));
617 extern int (*pap_check_hook) __P((void));
618 extern int (*pap_auth_hook) __P((char *user, char *passwd, char **msgp,
619 struct wordlist **paddrs,
620 struct wordlist **popts));
621 extern void (*pap_logout_hook) __P((void));
622 extern int (*pap_passwd_hook) __P((char *user, char *passwd));
623 extern int (*allowed_address_hook) __P((u_int32_t addr));
624 extern void (*ip_up_hook) __P((void));
625 extern void (*ip_down_hook) __P((void));
626 extern void (*ip_choose_hook) __P((u_int32_t *));
628 extern int (*chap_check_hook) __P((void));
629 extern int (*chap_passwd_hook) __P((char *user, char *passwd));
632 * Inline versions of get/put char/short/long.
633 * Pointer is advanced; we assume that both arguments
634 * are lvalues and will already be in registers.
635 * cp MUST be u_char *.
637 #define GETCHAR(c, cp) { \
640 #define PUTCHAR(c, cp) { \
641 *(cp)++ = (u_char) (c); \
645 #define GETSHORT(s, cp) { \
646 (s) = *(cp)++ << 8; \
649 #define PUTSHORT(s, cp) { \
650 *(cp)++ = (u_char) ((s) >> 8); \
651 *(cp)++ = (u_char) (s); \
654 #define GETLONG(l, cp) { \
655 (l) = *(cp)++ << 8; \
656 (l) |= *(cp)++; (l) <<= 8; \
657 (l) |= *(cp)++; (l) <<= 8; \
660 #define PUTLONG(l, cp) { \
661 *(cp)++ = (u_char) ((l) >> 24); \
662 *(cp)++ = (u_char) ((l) >> 16); \
663 *(cp)++ = (u_char) ((l) >> 8); \
664 *(cp)++ = (u_char) (l); \
667 #define INCPTR(n, cp) ((cp) += (n))
668 #define DECPTR(n, cp) ((cp) -= (n))
671 * System dependent definitions for user-level 4.3BSD UNIX implementation.
674 #define TIMEOUT(r, f, t) timeout((r), (f), (t), 0)
675 #define UNTIMEOUT(r, f) untimeout((r), (f))
677 #define BCOPY(s, d, l) memcpy(d, s, l)
678 #define BZERO(s, n) memset(s, 0, n)
680 #define PRINTMSG(m, l) { info("Remote message: %0.*v", l, m); }
683 * MAKEHEADER - Add Header fields to a packet.
685 #define MAKEHEADER(p, t) { \
686 PUTCHAR(PPP_ALLSTATIONS, p); \
687 PUTCHAR(PPP_UI, p); \
691 * Exit status values.
694 #define EXIT_FATAL_ERROR 1
695 #define EXIT_OPTION_ERROR 2
696 #define EXIT_NOT_ROOT 3
697 #define EXIT_NO_KERNEL_SUPPORT 4
698 #define EXIT_USER_REQUEST 5
699 #define EXIT_LOCK_FAILED 6
700 #define EXIT_OPEN_FAILED 7
701 #define EXIT_CONNECT_FAILED 8
702 #define EXIT_PTYCMD_FAILED 9
703 #define EXIT_NEGOTIATION_FAILED 10
704 #define EXIT_PEER_AUTH_FAILED 11
705 #define EXIT_IDLE_TIMEOUT 12
706 #define EXIT_CONNECT_TIME 13
707 #define EXIT_CALLBACK 14
708 #define EXIT_PEER_DEAD 15
709 #define EXIT_HANGUP 16
710 #define EXIT_LOOPBACK 17
711 #define EXIT_INIT_FAILED 18
712 #define EXIT_AUTH_TOPEER_FAILED 19
715 * Debug macros. Slightly useful for finding bugs in pppd, not particularly
716 * useful for finding out why your connection isn't being established.
723 #define DEBUGIPV6CP 1
728 #ifndef LOG_PPP /* we use LOG_LOCAL2 for syslog by default */
729 #if defined(DEBUGMAIN) || defined(DEBUGFSM) || defined(DEBUGSYS) \
730 || defined(DEBUGLCP) || defined(DEBUGIPCP) || defined(DEBUGUPAP) \
731 || defined(DEBUGCHAP) || defined(DEBUG) || defined(DEBUGIPV6CP)
732 #define LOG_PPP LOG_LOCAL2
734 #define LOG_PPP LOG_DAEMON
739 #define MAINDEBUG(x) if (debug) dbglog x
745 #define SYSDEBUG(x) if (debug) dbglog x
751 #define FSMDEBUG(x) if (debug) dbglog x
757 #define LCPDEBUG(x) if (debug) dbglog x
763 #define IPCPDEBUG(x) if (debug) dbglog x
769 #define IPV6CPDEBUG(x) if (debug) dbglog x
771 #define IPV6CPDEBUG(x)
775 #define UPAPDEBUG(x) if (debug) dbglog x
781 #define CHAPDEBUG(x) if (debug) dbglog x
787 #define IPXCPDEBUG(x) if (debug) dbglog x
789 #define IPXCPDEBUG(x)
793 #if defined(sun) || defined(SYSV) || defined(POSIX_SOURCE)
797 #endif /* defined(sun) || defined(SYSV) || defined(POSIX_SOURCE) */
801 #define MIN(a, b) ((a) < (b)? (a): (b))
804 #define MAX(a, b) ((a) > (b)? (a): (b))
807 #endif /* __PPP_H__ */