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 1.62 2001/05/23 03:39:13 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;
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 int listen_time; /* time to listen first (ms) */
218 extern struct notifier *pidchange; /* for notifications of pid changing */
219 extern struct notifier *phasechange; /* for notifications of phase changes */
220 extern struct notifier *exitnotify; /* for notification that we're exiting */
221 extern struct notifier *sigreceived; /* notification of received signal */
222 extern struct notifier *ip_up_notifier; /* IPCP has come up */
223 extern struct notifier *ip_down_notifier; /* IPCP has gone down */
224 extern struct notifier *auth_up_notifier; /* peer has authenticated */
225 extern struct notifier *link_down_notifier; /* link has gone down */
227 /* Values for do_callback and doing_callback */
228 #define CALLBACK_DIALIN 1 /* we are expecting the call back */
229 #define CALLBACK_DIALOUT 2 /* we are dialling out to call back */
232 * Variables set by command-line options.
235 extern int debug; /* Debug flag */
236 extern int kdebugflag; /* Tell kernel to print debug messages */
237 extern int default_device; /* Using /dev/tty or equivalent */
238 extern char devnam[MAXPATHLEN]; /* Device name */
239 extern int crtscts; /* Use hardware flow control */
240 extern bool modem; /* Use modem control lines */
241 extern int inspeed; /* Input/Output speed requested */
242 extern u_int32_t netmask; /* IP netmask to set on interface */
243 extern bool lockflag; /* Create lock file to lock the serial dev */
244 extern bool nodetach; /* Don't detach from controlling tty */
245 extern bool updetach; /* Detach from controlling tty when link up */
246 extern char *initializer; /* Script to initialize physical link */
247 extern char *connect_script; /* Script to establish physical link */
248 extern char *disconnect_script; /* Script to disestablish physical link */
249 extern char *welcomer; /* Script to welcome client after connection */
250 extern char *ptycommand; /* Command to run on other side of pty */
251 extern int maxconnect; /* Maximum connect time (seconds) */
252 extern char user[MAXNAMELEN];/* Our name for authenticating ourselves */
253 extern char passwd[MAXSECRETLEN]; /* Password for PAP or CHAP */
254 extern bool auth_required; /* Peer is required to authenticate */
255 extern bool persist; /* Reopen link after it goes down */
256 extern bool uselogin; /* Use /etc/passwd for checking PAP */
257 extern char our_name[MAXNAMELEN];/* Our name for authentication purposes */
258 extern char remote_name[MAXNAMELEN]; /* Peer's name for authentication */
259 extern bool explicit_remote;/* remote_name specified with remotename opt */
260 extern bool demand; /* Do dial-on-demand */
261 extern char *ipparam; /* Extra parameter for ip up/down scripts */
262 extern bool cryptpap; /* Others' PAP passwords are encrypted */
263 extern int idle_time_limit;/* Shut down link if idle for this long */
264 extern int holdoff; /* Dead time before restarting */
265 extern bool holdoff_specified; /* true if user gave a holdoff value */
266 extern bool notty; /* Stdin/out is not a tty */
267 extern char *pty_socket; /* Socket to connect to pty */
268 extern char *record_file; /* File to record chars sent/received */
269 extern bool sync_serial; /* Device is synchronous serial device */
270 extern int maxfail; /* Max # of unsuccessful connection attempts */
271 extern char linkname[MAXPATHLEN]; /* logical name for link */
272 extern bool tune_kernel; /* May alter kernel settings as necessary */
273 extern int connect_delay; /* Time to delay after connect script */
274 extern int max_data_rate; /* max bytes/sec through charshunt */
275 extern int req_unit; /* interface unit number to use */
276 extern bool multilink; /* enable multilink operation */
277 extern bool noendpoint; /* don't send or accept endpt. discrim. */
278 extern char *bundle_name; /* bundle name for multilink */
279 extern bool dump_options; /* print out option values */
280 extern bool dryrun; /* check everything, print options, exit */
283 extern struct bpf_program pass_filter; /* Filter for pkts to pass */
284 extern struct bpf_program active_filter; /* Filter for link-active pkts */
288 extern bool ms_lanman; /* Use LanMan password instead of NT */
289 /* Has meaning only with MS-CHAP challenges */
292 extern char *current_option; /* the name of the option being parsed */
293 extern int privileged_option; /* set iff the current option came from root */
294 extern char *option_source; /* string saying where the option came from */
295 extern int option_priority; /* priority of current options */
301 #define PHASE_INITIALIZE 1
302 #define PHASE_SERIALCONN 2
303 #define PHASE_DORMANT 3
304 #define PHASE_ESTABLISH 4
305 #define PHASE_AUTHENTICATE 5
306 #define PHASE_CALLBACK 6
307 #define PHASE_NETWORK 7
308 #define PHASE_RUNNING 8
309 #define PHASE_TERMINATE 9
310 #define PHASE_DISCONNECT 10
311 #define PHASE_HOLDOFF 11
314 * The following struct gives the addresses of procedures to call
315 * for a particular protocol.
318 u_short protocol; /* PPP protocol number */
319 /* Initialization procedure */
320 void (*init) __P((int unit));
321 /* Process a received packet */
322 void (*input) __P((int unit, u_char *pkt, int len));
323 /* Process a received protocol-reject */
324 void (*protrej) __P((int unit));
325 /* Lower layer has come up */
326 void (*lowerup) __P((int unit));
327 /* Lower layer has gone down */
328 void (*lowerdown) __P((int unit));
329 /* Open the protocol */
330 void (*open) __P((int unit));
331 /* Close the protocol */
332 void (*close) __P((int unit, char *reason));
333 /* Print a packet in readable form */
334 int (*printpkt) __P((u_char *pkt, int len,
335 void (*printer) __P((void *, char *, ...)),
337 /* Process a received data packet */
338 void (*datainput) __P((int unit, u_char *pkt, int len));
339 bool enabled_flag; /* 0 iff protocol is disabled */
340 char *name; /* Text name of protocol */
341 char *data_name; /* Text name of corresponding data protocol */
342 option_t *options; /* List of command-line options */
343 /* Check requested options, assign defaults */
344 void (*check_options) __P((void));
345 /* Configure interface for demand-dial */
346 int (*demand_conf) __P((int unit));
347 /* Say whether to bring up link for this pkt */
348 int (*active_pkt) __P((u_char *pkt, int len));
351 /* Table of pointers to supported protocols */
352 extern struct protent *protocols[];
355 * This struct contains pointers to a set of procedures for
356 * doing operations on a "channel". A channel provides a way
357 * to send and receive PPP packets - the canonical example is
358 * a serial port device in PPP line discipline (or equivalently
359 * with PPP STREAMS modules pushed onto it).
362 /* set of options for this channel */
364 /* find and process a per-channel options file */
365 void (*process_extra_options) __P((void));
366 /* check all the options that have been given */
367 void (*check_options) __P((void));
368 /* get the channel ready to do PPP, return a file descriptor */
369 int (*connect) __P((void));
370 /* we're finished with the channel */
371 void (*disconnect) __P((void));
372 /* put the channel into PPP `mode' */
373 int (*establish_ppp) __P((int));
374 /* take the channel out of PPP `mode', restore loopback if demand */
375 void (*disestablish_ppp) __P((int));
376 /* set the transmit-side PPP parameters of the channel */
377 void (*send_config) __P((int, u_int32_t, int, int));
378 /* set the receive-side PPP parameters of the channel */
379 void (*recv_config) __P((int, u_int32_t, int, int));
380 /* cleanup on error or normal exit */
381 void (*cleanup) __P((void));
382 /* close the device, called in children after fork */
383 void (*close) __P((void));
386 extern struct channel *the_channel;
388 #define ppp_send_config(unit, mtu, accm, pc, acc) \
390 if (the_channel->send_config) \
391 (*the_channel->send_config)((mtu), (accm), (pc), (acc)); \
394 #define ppp_recv_config(unit, mtu, accm, pc, acc) \
396 if (the_channel->send_config) \
397 (*the_channel->recv_config)((mtu), (accm), (pc), (acc)); \
404 /* Procedures exported from main.c. */
405 void set_ifunit __P((int)); /* set stuff that depends on ifunit */
406 void detach __P((void)); /* Detach from controlling tty */
407 void die __P((int)); /* Cleanup and exit */
408 void quit __P((void)); /* like die(1) */
409 void novm __P((char *)); /* Say we ran out of memory, and die */
410 void timeout __P((void (*func)(void *), void *arg, int s, int us));
411 /* Call func(arg) after s.us seconds */
412 void untimeout __P((void (*func)(void *), void *arg));
413 /* Cancel call to func(arg) */
414 void record_child __P((int, char *, void (*) (void *), void *));
415 int device_script __P((char *cmd, int in, int out, int dont_wait));
416 /* Run `cmd' with given stdin and stdout */
417 pid_t run_program __P((char *prog, char **args, int must_exist,
418 void (*done)(void *), void *arg));
419 /* Run program prog with args in child */
420 void reopen_log __P((void)); /* (re)open the connection to syslog */
421 void update_link_stats __P((int)); /* Get stats at link termination */
422 void script_setenv __P((char *, char *, int)); /* set script env var */
423 void script_unsetenv __P((char *)); /* unset script env var */
424 void new_phase __P((int)); /* signal start of new phase */
425 void add_notifier __P((struct notifier **, notify_func, void *));
426 void remove_notifier __P((struct notifier **, notify_func, void *));
427 void notify __P((struct notifier *, int));
429 /* Procedures exported from tty.c. */
430 void tty_init __P((void));
432 /* Procedures exported from utils.c. */
433 void log_packet __P((u_char *, int, char *, int));
434 /* Format a packet and log it with syslog */
435 void print_string __P((char *, int, void (*) (void *, char *, ...),
436 void *)); /* Format a string for output */
437 int slprintf __P((char *, int, char *, ...)); /* sprintf++ */
438 int vslprintf __P((char *, int, char *, va_list)); /* vsprintf++ */
439 size_t strlcpy __P((char *, const char *, size_t)); /* safe strcpy */
440 size_t strlcat __P((char *, const char *, size_t)); /* safe strncpy */
441 void dbglog __P((char *, ...)); /* log a debug message */
442 void info __P((char *, ...)); /* log an informational message */
443 void notice __P((char *, ...)); /* log a notice-level message */
444 void warn __P((char *, ...)); /* log a warning message */
445 void error __P((char *, ...)); /* log an error message */
446 void fatal __P((char *, ...)); /* log an error message and die(1) */
447 void init_pr_log __P((char *, int)); /* initialize for using pr_log */
448 void pr_log __P((void *, char *, ...)); /* printer fn, output to syslog */
449 void end_pr_log __P((void)); /* finish up after using pr_log */
450 void dump_packet __P((const char *, u_char *, int));
451 /* dump packet to debug log if interesting */
453 /* Procedures exported from auth.c */
454 void link_required __P((int)); /* we are starting to use the link */
455 void link_terminated __P((int)); /* we are finished with the link */
456 void link_down __P((int)); /* the LCP layer has left the Opened state */
457 void link_established __P((int)); /* the link is up; authenticate now */
458 void start_networks __P((void)); /* start all the network control protos */
459 void np_up __P((int, int)); /* a network protocol has come up */
460 void np_down __P((int, int)); /* a network protocol has gone down */
461 void np_finished __P((int, int)); /* a network protocol no longer needs link */
462 void auth_peer_fail __P((int, int));
463 /* peer failed to authenticate itself */
464 void auth_peer_success __P((int, int, char *, int));
465 /* peer successfully authenticated itself */
466 void auth_withpeer_fail __P((int, int));
467 /* we failed to authenticate ourselves */
468 void auth_withpeer_success __P((int, int));
469 /* we successfully authenticated ourselves */
470 void auth_check_options __P((void));
471 /* check authentication options supplied */
472 void auth_reset __P((int)); /* check what secrets we have */
473 int check_passwd __P((int, char *, int, char *, int, char **));
474 /* Check peer-supplied username/password */
475 int get_secret __P((int, char *, char *, char *, int *, int));
476 /* get "secret" for chap */
477 int auth_ip_addr __P((int, u_int32_t));
478 /* check if IP address is authorized */
479 int bad_ip_adrs __P((u_int32_t));
480 /* check if IP address is unreasonable */
482 /* Procedures exported from demand.c */
483 void demand_conf __P((void)); /* config interface(s) for demand-dial */
484 void demand_block __P((void)); /* set all NPs to queue up packets */
485 void demand_unblock __P((void)); /* set all NPs to pass packets */
486 void demand_discard __P((void)); /* set all NPs to discard packets */
487 void demand_rexmit __P((int)); /* retransmit saved frames for an NP */
488 int loop_chars __P((unsigned char *, int)); /* process chars from loopback */
489 int loop_frame __P((unsigned char *, int)); /* should we bring link up? */
491 /* Procedures exported from multilink.c */
492 void mp_check_options __P((void)); /* Check multilink-related options */
493 int mp_join_bundle __P((void)); /* join our link to an appropriate bundle */
494 char *epdisc_to_str __P((struct epdisc *)); /* string from endpoint discrim. */
495 int str_to_epdisc __P((struct epdisc *, char *)); /* endpt disc. from str */
497 /* Procedures exported from sys-*.c */
498 void sys_init __P((void)); /* Do system-dependent initialization */
499 void sys_cleanup __P((void)); /* Restore system state before exiting */
500 int sys_check_options __P((void)); /* Check options specified */
501 void sys_close __P((void)); /* Clean up in a child before execing */
502 int ppp_available __P((void)); /* Test whether ppp kernel support exists */
503 int get_pty __P((int *, int *, char *, int)); /* Get pty master/slave */
504 int open_ppp_loopback __P((void)); /* Open loopback for demand-dialling */
505 int tty_establish_ppp __P((int)); /* Turn serial port into a ppp interface */
506 void tty_disestablish_ppp __P((int)); /* Restore port to normal operation */
507 void generic_disestablish_ppp __P((int dev_fd)); /* Restore device setting */
508 int generic_establish_ppp __P((int dev_fd)); /* Make a ppp interface */
509 void make_new_bundle __P((int, int, int, int)); /* Create new bundle */
510 int bundle_attach __P((int)); /* Attach link to existing bundle */
511 void cfg_bundle __P((int, int, int, int)); /* Configure existing bundle */
512 void clean_check __P((void)); /* Check if line was 8-bit clean */
513 void set_up_tty __P((int, int)); /* Set up port's speed, parameters, etc. */
514 void restore_tty __P((int)); /* Restore port's original parameters */
515 void setdtr __P((int, int)); /* Raise or lower port's DTR line */
516 void output __P((int, u_char *, int)); /* Output a PPP packet */
517 void wait_input __P((struct timeval *));
518 /* Wait for input, with timeout */
519 void add_fd __P((int)); /* Add fd to set to wait for */
520 void remove_fd __P((int)); /* Remove fd from set to wait for */
521 int read_packet __P((u_char *)); /* Read PPP packet */
522 int get_loop_output __P((void)); /* Read pkts from loopback */
523 void tty_send_config __P((int, u_int32_t, int, int));
524 /* Configure i/f transmit parameters */
525 void tty_set_xaccm __P((ext_accm));
526 /* Set extended transmit ACCM */
527 void tty_recv_config __P((int, u_int32_t, int, int));
528 /* Configure i/f receive parameters */
529 int ccp_test __P((int, u_char *, int, int));
530 /* Test support for compression scheme */
531 void ccp_flags_set __P((int, int, int));
532 /* Set kernel CCP state */
533 int ccp_fatal_error __P((int)); /* Test for fatal decomp error in kernel */
534 int get_idle_time __P((int, struct ppp_idle *));
535 /* Find out how long link has been idle */
536 int get_ppp_stats __P((int, struct pppd_stats *));
537 /* Return link statistics */
538 void netif_set_mtu __P((int, int)); /* Set PPP interface MTU */
539 int sifvjcomp __P((int, int, int, int));
540 /* Configure VJ TCP header compression */
541 int sifup __P((int)); /* Configure i/f up for one protocol */
542 int sifnpmode __P((int u, int proto, enum NPmode mode));
543 /* Set mode for handling packets for proto */
544 int sifdown __P((int)); /* Configure i/f down for one protocol */
545 int sifaddr __P((int, u_int32_t, u_int32_t, u_int32_t));
546 /* Configure IPv4 addresses for i/f */
547 int cifaddr __P((int, u_int32_t, u_int32_t));
548 /* Reset i/f IP addresses */
550 int sif6addr __P((int, eui64_t, eui64_t));
551 /* Configure IPv6 addresses for i/f */
552 int cif6addr __P((int, eui64_t, eui64_t));
553 /* Remove an IPv6 address from i/f */
555 int sifdefaultroute __P((int, u_int32_t, u_int32_t));
556 /* Create default route through i/f */
557 int cifdefaultroute __P((int, u_int32_t, u_int32_t));
558 /* Delete default route through i/f */
559 int sifproxyarp __P((int, u_int32_t));
560 /* Add proxy ARP entry for peer */
561 int cifproxyarp __P((int, u_int32_t));
562 /* Delete proxy ARP entry for peer */
563 u_int32_t GetMask __P((u_int32_t)); /* Get appropriate netmask for address */
564 int lock __P((char *)); /* Create lock file for device */
565 int relock __P((int)); /* Rewrite lock file with new pid */
566 void unlock __P((void)); /* Delete previously-created lock file */
567 void logwtmp __P((const char *, const char *, const char *));
568 /* Write entry to wtmp file */
569 int get_host_seed __P((void)); /* Get host-dependent random number seed */
570 int have_route_to __P((u_int32_t)); /* Check if route to addr exists */
572 int set_filters __P((struct bpf_program *pass, struct bpf_program *active));
573 /* Set filter programs in kernel */
576 int sipxfaddr __P((int, unsigned long, unsigned char *));
577 int cipxfaddr __P((int));
579 int get_if_hwaddr __P((u_char *addr, char *name));
580 char *get_first_ethernet __P((void));
582 /* Procedures exported from options.c */
583 int parse_args __P((int argc, char **argv));
584 /* Parse options from arguments given */
585 int options_from_file __P((char *filename, int must_exist, int check_prot,
587 /* Parse options from an options file */
588 int options_from_user __P((void)); /* Parse options from user's .ppprc */
589 int options_for_tty __P((void)); /* Parse options from /etc/ppp/options.tty */
590 int options_from_list __P((struct wordlist *, int privileged));
591 /* Parse options from a wordlist */
592 int getword __P((FILE *f, char *word, int *newlinep, char *filename));
593 /* Read a word from a file */
594 void option_error __P((char *fmt, ...));
595 /* Print an error message about an option */
596 int int_option __P((char *, int *));
597 /* Simplified number_option for decimal ints */
598 void add_options __P((option_t *)); /* Add extra options */
599 void check_options __P((void)); /* check values after all options parsed */
600 int override_value __P((const char *, int, const char *));
601 /* override value if permitted by priority */
602 void print_options __P((void (*) __P((void *, char *, ...)), void *));
603 /* print out values of all options */
605 int parse_dotted_ip __P((char *, u_int32_t *));
608 * Hooks to enable plugins to change various things.
610 extern int (*new_phase_hook) __P((int));
611 extern int (*idle_time_hook) __P((struct ppp_idle *));
612 extern int (*holdoff_hook) __P((void));
613 extern int (*pap_check_hook) __P((void));
614 extern int (*pap_auth_hook) __P((char *user, char *passwd, char **msgp,
615 struct wordlist **paddrs,
616 struct wordlist **popts));
617 extern void (*pap_logout_hook) __P((void));
618 extern int (*pap_passwd_hook) __P((char *user, char *passwd));
619 extern void (*ip_up_hook) __P((void));
620 extern void (*ip_down_hook) __P((void));
621 extern void (*ip_choose_hook) __P((u_int32_t *));
624 * Inline versions of get/put char/short/long.
625 * Pointer is advanced; we assume that both arguments
626 * are lvalues and will already be in registers.
627 * cp MUST be u_char *.
629 #define GETCHAR(c, cp) { \
632 #define PUTCHAR(c, cp) { \
633 *(cp)++ = (u_char) (c); \
637 #define GETSHORT(s, cp) { \
638 (s) = *(cp)++ << 8; \
641 #define PUTSHORT(s, cp) { \
642 *(cp)++ = (u_char) ((s) >> 8); \
643 *(cp)++ = (u_char) (s); \
646 #define GETLONG(l, cp) { \
647 (l) = *(cp)++ << 8; \
648 (l) |= *(cp)++; (l) <<= 8; \
649 (l) |= *(cp)++; (l) <<= 8; \
652 #define PUTLONG(l, cp) { \
653 *(cp)++ = (u_char) ((l) >> 24); \
654 *(cp)++ = (u_char) ((l) >> 16); \
655 *(cp)++ = (u_char) ((l) >> 8); \
656 *(cp)++ = (u_char) (l); \
659 #define INCPTR(n, cp) ((cp) += (n))
660 #define DECPTR(n, cp) ((cp) -= (n))
663 * System dependent definitions for user-level 4.3BSD UNIX implementation.
666 #define TIMEOUT(r, f, t) timeout((r), (f), (t), 0)
667 #define UNTIMEOUT(r, f) untimeout((r), (f))
669 #define BCOPY(s, d, l) memcpy(d, s, l)
670 #define BZERO(s, n) memset(s, 0, n)
672 #define PRINTMSG(m, l) { info("Remote message: %0.*v", l, m); }
675 * MAKEHEADER - Add Header fields to a packet.
677 #define MAKEHEADER(p, t) { \
678 PUTCHAR(PPP_ALLSTATIONS, p); \
679 PUTCHAR(PPP_UI, p); \
683 * Exit status values.
686 #define EXIT_FATAL_ERROR 1
687 #define EXIT_OPTION_ERROR 2
688 #define EXIT_NOT_ROOT 3
689 #define EXIT_NO_KERNEL_SUPPORT 4
690 #define EXIT_USER_REQUEST 5
691 #define EXIT_LOCK_FAILED 6
692 #define EXIT_OPEN_FAILED 7
693 #define EXIT_CONNECT_FAILED 8
694 #define EXIT_PTYCMD_FAILED 9
695 #define EXIT_NEGOTIATION_FAILED 10
696 #define EXIT_PEER_AUTH_FAILED 11
697 #define EXIT_IDLE_TIMEOUT 12
698 #define EXIT_CONNECT_TIME 13
699 #define EXIT_CALLBACK 14
700 #define EXIT_PEER_DEAD 15
701 #define EXIT_HANGUP 16
702 #define EXIT_LOOPBACK 17
703 #define EXIT_INIT_FAILED 18
704 #define EXIT_AUTH_TOPEER_FAILED 19
707 * Debug macros. Slightly useful for finding bugs in pppd, not particularly
708 * useful for finding out why your connection isn't being established.
715 #define DEBUGIPV6CP 1
720 #ifndef LOG_PPP /* we use LOG_LOCAL2 for syslog by default */
721 #if defined(DEBUGMAIN) || defined(DEBUGFSM) || defined(DEBUGSYS) \
722 || defined(DEBUGLCP) || defined(DEBUGIPCP) || defined(DEBUGUPAP) \
723 || defined(DEBUGCHAP) || defined(DEBUG) || defined(DEBUGIPV6CP)
724 #define LOG_PPP LOG_LOCAL2
726 #define LOG_PPP LOG_DAEMON
731 #define MAINDEBUG(x) if (debug) dbglog x
737 #define SYSDEBUG(x) if (debug) dbglog x
743 #define FSMDEBUG(x) if (debug) dbglog x
749 #define LCPDEBUG(x) if (debug) dbglog x
755 #define IPCPDEBUG(x) if (debug) dbglog x
761 #define IPV6CPDEBUG(x) if (debug) dbglog x
763 #define IPV6CPDEBUG(x)
767 #define UPAPDEBUG(x) if (debug) dbglog x
773 #define CHAPDEBUG(x) if (debug) dbglog x
779 #define IPXCPDEBUG(x) if (debug) dbglog x
781 #define IPXCPDEBUG(x)
785 #if defined(sun) || defined(SYSV) || defined(POSIX_SOURCE)
789 #endif /* defined(sun) || defined(SYSV) || defined(POSIX_SOURCE) */
793 #define MIN(a, b) ((a) < (b)? (a): (b))
796 #define MAX(a, b) ((a) > (b)? (a): (b))
799 #endif /* __PPP_H__ */