1 diff -Naur pppdcapiplugin.orig/ppp-2.4.5/Makefile pppdcapiplugin/ppp-2.4.5/Makefile
2 --- pppdcapiplugin.orig/ppp-2.4.5/Makefile 1970-01-01 01:00:00.000000000 +0100
3 +++ pppdcapiplugin/ppp-2.4.5/Makefile 2010-09-08 14:00:51.435194242 +0200
5 +# Makefile for the capiplugin for pppd(8).
7 +# Copyright 2000 Carsten Paeth (calle@calle.in-berlin.de)
8 +# Copyright 2000 AVM GmbH Berlin (info@avm.de)
10 +# This program is free software; you can redistribute it and/or
11 +# modify it under the terms of the GNU General Public License
12 +# as published by the Free Software Foundation; either version
13 +# 2 of the License, or (at your option) any later version.
15 +PLUGINDIR=${DESTDIR}/usr/lib/pppd/$(PPPVERSION)
17 +include $(TOPDIR)/Rules.make
19 diff -Naur pppdcapiplugin.orig/ppp-2.4.5/pppd/patchlevel.h pppdcapiplugin/ppp-2.4.5/pppd/patchlevel.h
20 --- pppdcapiplugin.orig/ppp-2.4.5/pppd/patchlevel.h 1970-01-01 01:00:00.000000000 +0100
21 +++ pppdcapiplugin/ppp-2.4.5/pppd/patchlevel.h 2010-09-08 14:02:25.926583941 +0200
23 +#define VERSION "2.4.5"
24 +#define DATE "17 November 2009"
25 diff -Naur pppdcapiplugin.orig/ppp-2.4.5/pppd/pppd.h pppdcapiplugin/ppp-2.4.5/pppd/pppd.h
26 --- pppdcapiplugin.orig/ppp-2.4.5/pppd/pppd.h 1970-01-01 01:00:00.000000000 +0100
27 +++ pppdcapiplugin/ppp-2.4.5/pppd/pppd.h 2010-09-08 14:02:35.223425524 +0200
30 + * pppd.h - PPP daemon global declarations.
32 + * Copyright (c) 1984-2000 Carnegie Mellon University. All rights reserved.
34 + * Redistribution and use in source and binary forms, with or without
35 + * modification, are permitted provided that the following conditions
38 + * 1. Redistributions of source code must retain the above copyright
39 + * notice, this list of conditions and the following disclaimer.
41 + * 2. Redistributions in binary form must reproduce the above copyright
42 + * notice, this list of conditions and the following disclaimer in
43 + * the documentation and/or other materials provided with the
46 + * 3. The name "Carnegie Mellon University" must not be used to
47 + * endorse or promote products derived from this software without
48 + * prior written permission. For permission or any legal
49 + * details, please contact
50 + * Office of Technology Transfer
51 + * Carnegie Mellon University
52 + * 5000 Forbes Avenue
53 + * Pittsburgh, PA 15213-3890
54 + * (412) 268-4387, fax: (412) 268-7395
55 + * tech-transfer@andrew.cmu.edu
57 + * 4. Redistributions of any form whatsoever must retain the following
59 + * "This product includes software developed by Computing Services
60 + * at Carnegie Mellon University (http://www.cmu.edu/computing/)."
62 + * CARNEGIE MELLON UNIVERSITY DISCLAIMS ALL WARRANTIES WITH REGARD TO
63 + * THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
64 + * AND FITNESS, IN NO EVENT SHALL CARNEGIE MELLON UNIVERSITY BE LIABLE
65 + * FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
66 + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN
67 + * AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
68 + * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
80 +#include <stdio.h> /* for FILE */
81 +#include <limits.h> /* for NGROUPS_MAX */
82 +#include <sys/param.h> /* for MAXPATHLEN and BSD4_4, if defined */
83 +#include <sys/types.h> /* for u_int32_t, if defined */
84 +#include <sys/time.h> /* for struct timeval */
85 +#include <net/ppp_defs.h>
86 +#include "patchlevel.h"
88 +#if defined(__STDC__)
93 +#define __V(x) (va_alist) va_dcl
106 +#define NUM_PPP 1 /* One PPP interface supported (per process) */
107 +#define MAXWORDLEN 1024 /* max length of word in file (incl null) */
108 +#define MAXARGS 1 /* max # args to a command */
109 +#define MAXNAMELEN 256 /* max length of hostname or name for auth */
110 +#define MAXSECRETLEN 256 /* max length of password or secret */
113 + * Option descriptor structure.
116 +typedef unsigned char bool;
119 + o_special_noarg = 0,
129 + char *name; /* name of the option */
130 + enum opt_type type;
133 + unsigned int flags;
137 + const char *source;
138 + short int priority;
142 +/* Values for flags */
143 +#define OPT_VALUE 0xff /* mask for presupplied value */
144 +#define OPT_HEX 0x100 /* int option is in hex */
145 +#define OPT_NOARG 0x200 /* option doesn't take argument */
146 +#define OPT_OR 0x400 /* for u32, OR in argument to value */
147 +#define OPT_INC 0x400 /* for o_int, increment value */
148 +#define OPT_A2OR 0x800 /* for o_bool, OR arg to *(u_char *)addr2 */
149 +#define OPT_PRIV 0x1000 /* privileged option */
150 +#define OPT_STATIC 0x2000 /* string option goes into static array */
151 +#define OPT_NOINCR 0x2000 /* for o_int, value mustn't be increased */
152 +#define OPT_LLIMIT 0x4000 /* check value against lower limit */
153 +#define OPT_ULIMIT 0x8000 /* check value against upper limit */
154 +#define OPT_LIMITS (OPT_LLIMIT|OPT_ULIMIT)
155 +#define OPT_ZEROOK 0x10000 /* 0 value is OK even if not within limits */
156 +#define OPT_HIDE 0x10000 /* for o_string, print value as ?????? */
157 +#define OPT_A2LIST 0x20000 /* for o_special, keep list of values */
158 +#define OPT_A2CLRB 0x20000 /* o_bool, clr val bits in *(u_char *)addr2 */
159 +#define OPT_ZEROINF 0x40000 /* with OPT_NOINCR, 0 == infinity */
160 +#define OPT_PRIO 0x80000 /* process option priorities for this option */
161 +#define OPT_PRIOSUB 0x100000 /* subsidiary member of priority group */
162 +#define OPT_ALIAS 0x200000 /* option is alias for previous option */
163 +#define OPT_A2COPY 0x400000 /* addr2 -> second location to rcv value */
164 +#define OPT_ENABLE 0x800000 /* use *addr2 as enable for option */
165 +#define OPT_A2CLR 0x1000000 /* clear *(bool *)addr2 */
166 +#define OPT_PRIVFIX 0x2000000 /* user can't override if set by root */
167 +#define OPT_INITONLY 0x4000000 /* option can only be set in init phase */
168 +#define OPT_DEVEQUIV 0x8000000 /* equiv to device name */
169 +#define OPT_DEVNAM (OPT_INITONLY | OPT_DEVEQUIV)
170 +#define OPT_A2PRINTER 0x10000000 /* *addr2 is a fn for printing option */
171 +#define OPT_A2STRVAL 0x20000000 /* *addr2 points to current string value */
172 +#define OPT_NOPRINT 0x40000000 /* don't print this option at all */
174 +#define OPT_VAL(x) ((x) & OPT_VALUE)
176 +/* Values for priority */
177 +#define OPRIO_DEFAULT 0 /* a default value */
178 +#define OPRIO_CFGFILE 1 /* value from a configuration file */
179 +#define OPRIO_CMDLINE 2 /* value from the command line */
180 +#define OPRIO_SECFILE 3 /* value from options in a secrets file */
181 +#define OPRIO_ROOT 100 /* added to priority if OPT_PRIVFIX && root */
184 +#define GIDSET_TYPE gid_t
187 +/* Structure representing a list of permitted IP addresses. */
188 +struct permitted_ip {
189 + int permit; /* 1 = permit, 0 = forbid */
190 + u_int32_t base; /* match if (addr & mask) == base */
191 + u_int32_t mask; /* base and mask are in network byte order */
195 + * Unfortunately, the linux kernel driver uses a different structure
196 + * for statistics from the rest of the ports.
197 + * This structure serves as a common representation for the bits
201 + unsigned int bytes_in;
202 + unsigned int bytes_out;
203 + unsigned int pkts_in;
204 + unsigned int pkts_out;
207 +/* Used for storing a sequence of words. Usually malloced. */
209 + struct wordlist *next;
213 +/* An endpoint discriminator, used with multilink. */
214 +#define MAX_ENDP_LEN 20 /* maximum length of discriminator value */
216 + unsigned char class;
217 + unsigned char length;
218 + unsigned char value[MAX_ENDP_LEN];
221 +/* values for epdisc.class */
222 +#define EPD_NULL 0 /* null discriminator, no data */
227 +#define EPD_PHONENUM 5
229 +typedef void (*notify_func) __P((void *, int));
232 + struct notifier *next;
238 + * Global variables.
241 +extern int hungup; /* Physical layer has disconnected */
242 +extern int ifunit; /* Interface unit number */
243 +extern char ifname[]; /* Interface name */
244 +extern char hostname[]; /* Our hostname */
245 +extern char pidfilename[]; /* name of pid file */
246 +extern u_char outpacket_buf[]; /* Buffer for outgoing packets */
247 +extern int devfd; /* fd of underlying device */
248 +extern int fd_ppp; /* fd for talking PPP */
249 +extern int phase; /* Current state of link - see values below */
250 +extern int baud_rate; /* Current link speed in bits/sec */
251 +extern char *progname; /* Name of this program */
252 +extern int redirect_stderr;/* Connector's stderr should go to file */
253 +extern char peer_authname[];/* Authenticated name of peer */
254 +extern int auth_done[NUM_PPP]; /* Methods actually used for auth */
255 +extern int privileged; /* We were run by real-uid root */
256 +extern int need_holdoff; /* Need holdoff period after link terminates */
257 +extern char **script_env; /* Environment variables for scripts */
258 +extern int detached; /* Have detached from controlling tty */
259 +extern GIDSET_TYPE groups[NGROUPS_MAX]; /* groups the user is in */
260 +extern int ngroups; /* How many groups valid in groups */
261 +extern struct pppd_stats link_stats; /* byte/packet counts etc. for link */
262 +extern int link_stats_valid; /* set if link_stats is valid */
263 +extern unsigned link_connect_time; /* time the link was up for */
264 +extern int using_pty; /* using pty as device (notty or pty opt.) */
265 +extern int log_to_fd; /* logging to this fd as well as syslog */
266 +extern bool log_default; /* log_to_fd is default (stdout) */
267 +extern char *no_ppp_msg; /* message to print if ppp not in kernel */
268 +extern volatile int status; /* exit status for pppd */
269 +extern bool devnam_fixed; /* can no longer change devnam */
270 +extern int unsuccess; /* # unsuccessful connection attempts */
271 +extern int do_callback; /* set if we want to do callback next */
272 +extern int doing_callback; /* set if this is a callback */
273 +extern int error_count; /* # of times error() has been called */
274 +extern char ppp_devnam[MAXPATHLEN];
275 +extern char remote_number[MAXNAMELEN]; /* Remote telephone number, if avail. */
276 +extern int ppp_session_number; /* Session number (eg PPPoE session) */
277 +extern int fd_devnull; /* fd open to /dev/null */
279 +extern int listen_time; /* time to listen first (ms) */
280 +extern bool doing_multilink;
281 +extern bool multilink_master;
282 +extern bool bundle_eof;
283 +extern bool bundle_terminating;
285 +extern struct notifier *pidchange; /* for notifications of pid changing */
286 +extern struct notifier *phasechange; /* for notifications of phase changes */
287 +extern struct notifier *exitnotify; /* for notification that we're exiting */
288 +extern struct notifier *sigreceived; /* notification of received signal */
289 +extern struct notifier *ip_up_notifier; /* IPCP has come up */
290 +extern struct notifier *ip_down_notifier; /* IPCP has gone down */
291 +extern struct notifier *auth_up_notifier; /* peer has authenticated */
292 +extern struct notifier *link_down_notifier; /* link has gone down */
293 +extern struct notifier *fork_notifier; /* we are a new child process */
295 +/* Values for do_callback and doing_callback */
296 +#define CALLBACK_DIALIN 1 /* we are expecting the call back */
297 +#define CALLBACK_DIALOUT 2 /* we are dialling out to call back */
300 + * Variables set by command-line options.
303 +extern int debug; /* Debug flag */
304 +extern int kdebugflag; /* Tell kernel to print debug messages */
305 +extern int default_device; /* Using /dev/tty or equivalent */
306 +extern char devnam[MAXPATHLEN]; /* Device name */
307 +extern int defaultmetric; /* Metric of the default route */
308 +extern int crtscts; /* Use hardware flow control */
309 +extern bool modem; /* Use modem control lines */
310 +extern int inspeed; /* Input/Output speed requested */
311 +extern u_int32_t netmask; /* IP netmask to set on interface */
312 +extern bool lockflag; /* Create lock file to lock the serial dev */
313 +extern bool nodetach; /* Don't detach from controlling tty */
314 +extern bool updetach; /* Detach from controlling tty when link up */
315 +extern char *initializer; /* Script to initialize physical link */
316 +extern char *connect_script; /* Script to establish physical link */
317 +extern char *disconnect_script; /* Script to disestablish physical link */
318 +extern char *welcomer; /* Script to welcome client after connection */
319 +extern char *ptycommand; /* Command to run on other side of pty */
320 +extern int maxconnect; /* Maximum connect time (seconds) */
321 +extern char user[MAXNAMELEN];/* Our name for authenticating ourselves */
322 +extern char passwd[MAXSECRETLEN]; /* Password for PAP or CHAP */
323 +extern bool auth_required; /* Peer is required to authenticate */
324 +extern bool persist; /* Reopen link after it goes down */
325 +extern bool uselogin; /* Use /etc/passwd for checking PAP */
326 +extern bool session_mgmt; /* Do session management (login records) */
327 +extern char our_name[MAXNAMELEN];/* Our name for authentication purposes */
328 +extern char remote_name[MAXNAMELEN]; /* Peer's name for authentication */
329 +extern bool explicit_remote;/* remote_name specified with remotename opt */
330 +extern bool demand; /* Do dial-on-demand */
331 +extern bool killoldaddr; /* If our IP is reassigned on
332 + reconnect, kill active TCP
333 + connections using the old IP. */
334 +extern char *ipparam; /* Extra parameter for ip up/down scripts */
335 +extern bool cryptpap; /* Others' PAP passwords are encrypted */
336 +extern int idle_time_limit;/* Shut down link if idle for this long */
337 +extern int holdoff; /* Dead time before restarting */
338 +extern bool holdoff_specified; /* true if user gave a holdoff value */
339 +extern bool notty; /* Stdin/out is not a tty */
340 +extern char *pty_socket; /* Socket to connect to pty */
341 +extern char *record_file; /* File to record chars sent/received */
342 +extern bool sync_serial; /* Device is synchronous serial device */
343 +extern int maxfail; /* Max # of unsuccessful connection attempts */
344 +extern char linkname[MAXPATHLEN]; /* logical name for link */
345 +extern bool tune_kernel; /* May alter kernel settings as necessary */
346 +extern int connect_delay; /* Time to delay after connect script */
347 +extern int max_data_rate; /* max bytes/sec through charshunt */
348 +extern int req_unit; /* interface unit number to use */
349 +extern bool multilink; /* enable multilink operation */
350 +extern bool noendpoint; /* don't send or accept endpt. discrim. */
351 +extern char *bundle_name; /* bundle name for multilink */
352 +extern bool dump_options; /* print out option values */
353 +extern bool dryrun; /* check everything, print options, exit */
354 +extern int child_wait; /* # seconds to wait for children at end */
357 +extern unsigned int maxoctets; /* Maximum octetes per session (in bytes) */
358 +extern int maxoctets_dir; /* Direction :
359 + 0 - in+out (default)
363 +extern int maxoctets_timeout; /* Timeout for check of octets limit */
364 +#define PPP_OCTETS_DIRECTION_SUM 0
365 +#define PPP_OCTETS_DIRECTION_IN 1
366 +#define PPP_OCTETS_DIRECTION_OUT 2
367 +#define PPP_OCTETS_DIRECTION_MAXOVERAL 3
368 +/* same as previos, but little different on RADIUS side */
369 +#define PPP_OCTETS_DIRECTION_MAXSESSION 4
373 +extern struct bpf_program pass_filter; /* Filter for pkts to pass */
374 +extern struct bpf_program active_filter; /* Filter for link-active pkts */
378 +extern bool ms_lanman; /* Use LanMan password instead of NT */
379 + /* Has meaning only with MS-CHAP challenges */
382 +/* Values for auth_pending, auth_done */
383 +#define PAP_WITHPEER 0x1
384 +#define PAP_PEER 0x2
385 +#define CHAP_WITHPEER 0x4
386 +#define CHAP_PEER 0x8
387 +#define EAP_WITHPEER 0x10
388 +#define EAP_PEER 0x20
390 +/* Values for auth_done only */
391 +#define CHAP_MD5_WITHPEER 0x40
392 +#define CHAP_MD5_PEER 0x80
393 +#define CHAP_MS_SHIFT 8 /* LSB position for MS auths */
394 +#define CHAP_MS_WITHPEER 0x100
395 +#define CHAP_MS_PEER 0x200
396 +#define CHAP_MS2_WITHPEER 0x400
397 +#define CHAP_MS2_PEER 0x800
399 +extern char *current_option; /* the name of the option being parsed */
400 +extern int privileged_option; /* set iff the current option came from root */
401 +extern char *option_source; /* string saying where the option came from */
402 +extern int option_priority; /* priority of current options */
405 + * Values for phase.
407 +#define PHASE_DEAD 0
408 +#define PHASE_INITIALIZE 1
409 +#define PHASE_SERIALCONN 2
410 +#define PHASE_DORMANT 3
411 +#define PHASE_ESTABLISH 4
412 +#define PHASE_AUTHENTICATE 5
413 +#define PHASE_CALLBACK 6
414 +#define PHASE_NETWORK 7
415 +#define PHASE_RUNNING 8
416 +#define PHASE_TERMINATE 9
417 +#define PHASE_DISCONNECT 10
418 +#define PHASE_HOLDOFF 11
419 +#define PHASE_MASTER 12
422 + * The following struct gives the addresses of procedures to call
423 + * for a particular protocol.
426 + u_short protocol; /* PPP protocol number */
427 + /* Initialization procedure */
428 + void (*init) __P((int unit));
429 + /* Process a received packet */
430 + void (*input) __P((int unit, u_char *pkt, int len));
431 + /* Process a received protocol-reject */
432 + void (*protrej) __P((int unit));
433 + /* Lower layer has come up */
434 + void (*lowerup) __P((int unit));
435 + /* Lower layer has gone down */
436 + void (*lowerdown) __P((int unit));
437 + /* Open the protocol */
438 + void (*open) __P((int unit));
439 + /* Close the protocol */
440 + void (*close) __P((int unit, char *reason));
441 + /* Print a packet in readable form */
442 + int (*printpkt) __P((u_char *pkt, int len,
443 + void (*printer) __P((void *, char *, ...)),
445 + /* Process a received data packet */
446 + void (*datainput) __P((int unit, u_char *pkt, int len));
447 + bool enabled_flag; /* 0 iff protocol is disabled */
448 + char *name; /* Text name of protocol */
449 + char *data_name; /* Text name of corresponding data protocol */
450 + option_t *options; /* List of command-line options */
451 + /* Check requested options, assign defaults */
452 + void (*check_options) __P((void));
453 + /* Configure interface for demand-dial */
454 + int (*demand_conf) __P((int unit));
455 + /* Say whether to bring up link for this pkt */
456 + int (*active_pkt) __P((u_char *pkt, int len));
459 +/* Table of pointers to supported protocols */
460 +extern struct protent *protocols[];
463 + * This struct contains pointers to a set of procedures for
464 + * doing operations on a "channel". A channel provides a way
465 + * to send and receive PPP packets - the canonical example is
466 + * a serial port device in PPP line discipline (or equivalently
467 + * with PPP STREAMS modules pushed onto it).
470 + /* set of options for this channel */
472 + /* find and process a per-channel options file */
473 + void (*process_extra_options) __P((void));
474 + /* check all the options that have been given */
475 + void (*check_options) __P((void));
476 + /* get the channel ready to do PPP, return a file descriptor */
477 + int (*connect) __P((void));
478 + /* we're finished with the channel */
479 + void (*disconnect) __P((void));
480 + /* put the channel into PPP `mode' */
481 + int (*establish_ppp) __P((int));
482 + /* take the channel out of PPP `mode', restore loopback if demand */
483 + void (*disestablish_ppp) __P((int));
484 + /* set the transmit-side PPP parameters of the channel */
485 + void (*send_config) __P((int, u_int32_t, int, int));
486 + /* set the receive-side PPP parameters of the channel */
487 + void (*recv_config) __P((int, u_int32_t, int, int));
488 + /* cleanup on error or normal exit */
489 + void (*cleanup) __P((void));
490 + /* close the device, called in children after fork */
491 + void (*close) __P((void));
494 +extern struct channel *the_channel;
500 +/* Procedures exported from main.c. */
501 +void set_ifunit __P((int)); /* set stuff that depends on ifunit */
502 +void detach __P((void)); /* Detach from controlling tty */
503 +void die __P((int)); /* Cleanup and exit */
504 +void quit __P((void)); /* like die(1) */
505 +void novm __P((char *)); /* Say we ran out of memory, and die */
506 +void timeout __P((void (*func)(void *), void *arg, int s, int us));
507 + /* Call func(arg) after s.us seconds */
508 +void untimeout __P((void (*func)(void *), void *arg));
509 + /* Cancel call to func(arg) */
510 +void record_child __P((int, char *, void (*) (void *), void *, int));
511 +pid_t safe_fork __P((int, int, int)); /* Fork & close stuff in child */
512 +int device_script __P((char *cmd, int in, int out, int dont_wait));
513 + /* Run `cmd' with given stdin and stdout */
514 +pid_t run_program __P((char *prog, char **args, int must_exist,
515 + void (*done)(void *), void *arg, int wait));
516 + /* Run program prog with args in child */
517 +void reopen_log __P((void)); /* (re)open the connection to syslog */
518 +void print_link_stats __P((void)); /* Print stats, if available */
519 +void reset_link_stats __P((int)); /* Reset (init) stats when link goes up */
520 +void update_link_stats __P((int)); /* Get stats at link termination */
521 +void script_setenv __P((char *, char *, int)); /* set script env var */
522 +void script_unsetenv __P((char *)); /* unset script env var */
523 +void new_phase __P((int)); /* signal start of new phase */
524 +void add_notifier __P((struct notifier **, notify_func, void *));
525 +void remove_notifier __P((struct notifier **, notify_func, void *));
526 +void notify __P((struct notifier *, int));
527 +int ppp_send_config __P((int, int, u_int32_t, int, int));
528 +int ppp_recv_config __P((int, int, u_int32_t, int, int));
529 +const char *protocol_name __P((int));
530 +void remove_pidfile __P((char *));
531 +void lock_db __P((void));
532 +void unlock_db __P((void));
534 +/* Procedures exported from tty.c. */
535 +void tty_init __P((void));
537 +/* Procedures exported from utils.c. */
538 +void log_packet __P((u_char *, int, char *, int));
539 + /* Format a packet and log it with syslog */
540 +void print_string __P((char *, int, void (*) (void *, char *, ...),
541 + void *)); /* Format a string for output */
542 +int slprintf __P((char *, int, char *, ...)); /* sprintf++ */
543 +int vslprintf __P((char *, int, char *, va_list)); /* vsprintf++ */
544 +size_t strlcpy __P((char *, const char *, size_t)); /* safe strcpy */
545 +size_t strlcat __P((char *, const char *, size_t)); /* safe strncpy */
546 +void dbglog __P((char *, ...)); /* log a debug message */
547 +void info __P((char *, ...)); /* log an informational message */
548 +void notice __P((char *, ...)); /* log a notice-level message */
549 +void warn __P((char *, ...)); /* log a warning message */
550 +void error __P((char *, ...)); /* log an error message */
551 +void fatal __P((char *, ...)); /* log an error message and die(1) */
552 +void init_pr_log __P((const char *, int)); /* initialize for using pr_log */
553 +void pr_log __P((void *, char *, ...)); /* printer fn, output to syslog */
554 +void end_pr_log __P((void)); /* finish up after using pr_log */
555 +void dump_packet __P((const char *, u_char *, int));
556 + /* dump packet to debug log if interesting */
557 +ssize_t complete_read __P((int, void *, size_t));
558 + /* read a complete buffer */
560 +/* Procedures exported from auth.c */
561 +void link_required __P((int)); /* we are starting to use the link */
562 +void start_link __P((int)); /* bring the link up now */
563 +void link_terminated __P((int)); /* we are finished with the link */
564 +void link_down __P((int)); /* the LCP layer has left the Opened state */
565 +void upper_layers_down __P((int));/* take all NCPs down */
566 +void link_established __P((int)); /* the link is up; authenticate now */
567 +void start_networks __P((int)); /* start all the network control protos */
568 +void continue_networks __P((int)); /* start network [ip, etc] control protos */
569 +void np_up __P((int, int)); /* a network protocol has come up */
570 +void np_down __P((int, int)); /* a network protocol has gone down */
571 +void np_finished __P((int, int)); /* a network protocol no longer needs link */
572 +void auth_peer_fail __P((int, int));
573 + /* peer failed to authenticate itself */
574 +void auth_peer_success __P((int, int, int, char *, int));
575 + /* peer successfully authenticated itself */
576 +void auth_withpeer_fail __P((int, int));
577 + /* we failed to authenticate ourselves */
578 +void auth_withpeer_success __P((int, int, int));
579 + /* we successfully authenticated ourselves */
580 +void auth_check_options __P((void));
581 + /* check authentication options supplied */
582 +void auth_reset __P((int)); /* check what secrets we have */
583 +int check_passwd __P((int, char *, int, char *, int, char **));
584 + /* Check peer-supplied username/password */
585 +int get_secret __P((int, char *, char *, char *, int *, int));
586 + /* get "secret" for chap */
587 +int get_srp_secret __P((int unit, char *client, char *server, char *secret,
589 +int auth_ip_addr __P((int, u_int32_t));
590 + /* check if IP address is authorized */
591 +int auth_number __P((void)); /* check if remote number is authorized */
592 +int bad_ip_adrs __P((u_int32_t));
593 + /* check if IP address is unreasonable */
595 +/* Procedures exported from demand.c */
596 +void demand_conf __P((void)); /* config interface(s) for demand-dial */
597 +void demand_block __P((void)); /* set all NPs to queue up packets */
598 +void demand_unblock __P((void)); /* set all NPs to pass packets */
599 +void demand_discard __P((void)); /* set all NPs to discard packets */
600 +void demand_rexmit __P((int)); /* retransmit saved frames for an NP */
601 +int loop_chars __P((unsigned char *, int)); /* process chars from loopback */
602 +int loop_frame __P((unsigned char *, int)); /* should we bring link up? */
604 +/* Procedures exported from multilink.c */
605 +#ifdef HAVE_MULTILINK
606 +void mp_check_options __P((void)); /* Check multilink-related options */
607 +int mp_join_bundle __P((void)); /* join our link to an appropriate bundle */
608 +void mp_exit_bundle __P((void)); /* have disconnected our link from bundle */
609 +void mp_bundle_terminated __P((void));
610 +char *epdisc_to_str __P((struct epdisc *)); /* string from endpoint discrim. */
611 +int str_to_epdisc __P((struct epdisc *, char *)); /* endpt disc. from str */
613 +#define mp_bundle_terminated() /* nothing */
614 +#define mp_exit_bundle() /* nothing */
615 +#define doing_multilink 0
616 +#define multilink_master 0
619 +/* Procedures exported from sys-*.c */
620 +void sys_init __P((void)); /* Do system-dependent initialization */
621 +void sys_cleanup __P((void)); /* Restore system state before exiting */
622 +int sys_check_options __P((void)); /* Check options specified */
623 +void sys_close __P((void)); /* Clean up in a child before execing */
624 +int ppp_available __P((void)); /* Test whether ppp kernel support exists */
625 +int get_pty __P((int *, int *, char *, int)); /* Get pty master/slave */
626 +int open_ppp_loopback __P((void)); /* Open loopback for demand-dialling */
627 +int tty_establish_ppp __P((int)); /* Turn serial port into a ppp interface */
628 +void tty_disestablish_ppp __P((int)); /* Restore port to normal operation */
629 +void generic_disestablish_ppp __P((int dev_fd)); /* Restore device setting */
630 +int generic_establish_ppp __P((int dev_fd)); /* Make a ppp interface */
631 +void make_new_bundle __P((int, int, int, int)); /* Create new bundle */
632 +int bundle_attach __P((int)); /* Attach link to existing bundle */
633 +void cfg_bundle __P((int, int, int, int)); /* Configure existing bundle */
634 +void destroy_bundle __P((void)); /* Tell driver to destroy bundle */
635 +void clean_check __P((void)); /* Check if line was 8-bit clean */
636 +void set_up_tty __P((int, int)); /* Set up port's speed, parameters, etc. */
637 +void restore_tty __P((int)); /* Restore port's original parameters */
638 +void setdtr __P((int, int)); /* Raise or lower port's DTR line */
639 +void output __P((int, u_char *, int)); /* Output a PPP packet */
640 +void wait_input __P((struct timeval *));
641 + /* Wait for input, with timeout */
642 +void add_fd __P((int)); /* Add fd to set to wait for */
643 +void remove_fd __P((int)); /* Remove fd from set to wait for */
644 +int read_packet __P((u_char *)); /* Read PPP packet */
645 +int get_loop_output __P((void)); /* Read pkts from loopback */
646 +void tty_send_config __P((int, u_int32_t, int, int));
647 + /* Configure i/f transmit parameters */
648 +void tty_set_xaccm __P((ext_accm));
649 + /* Set extended transmit ACCM */
650 +void tty_recv_config __P((int, u_int32_t, int, int));
651 + /* Configure i/f receive parameters */
652 +int ccp_test __P((int, u_char *, int, int));
653 + /* Test support for compression scheme */
654 +void ccp_flags_set __P((int, int, int));
655 + /* Set kernel CCP state */
656 +int ccp_fatal_error __P((int)); /* Test for fatal decomp error in kernel */
657 +int get_idle_time __P((int, struct ppp_idle *));
658 + /* Find out how long link has been idle */
659 +int get_ppp_stats __P((int, struct pppd_stats *));
660 + /* Return link statistics */
661 +void netif_set_mtu __P((int, int)); /* Set PPP interface MTU */
662 +int netif_get_mtu __P((int)); /* Get PPP interface MTU */
663 +int sifvjcomp __P((int, int, int, int));
664 + /* Configure VJ TCP header compression */
665 +int sifup __P((int)); /* Configure i/f up for one protocol */
666 +int sifnpmode __P((int u, int proto, enum NPmode mode));
667 + /* Set mode for handling packets for proto */
668 +int sifdown __P((int)); /* Configure i/f down for one protocol */
669 +int sifaddr __P((int, u_int32_t, u_int32_t, u_int32_t));
670 + /* Configure IPv4 addresses for i/f */
671 +int cifaddr __P((int, u_int32_t, u_int32_t));
672 + /* Reset i/f IP addresses */
674 +int sif6addr __P((int, eui64_t, eui64_t));
675 + /* Configure IPv6 addresses for i/f */
676 +int cif6addr __P((int, eui64_t, eui64_t));
677 + /* Remove an IPv6 address from i/f */
679 +int sifdefaultroute __P((int, u_int32_t, u_int32_t));
680 + /* Create default route through i/f */
681 +int cifdefaultroute __P((int, u_int32_t, u_int32_t));
682 + /* Delete default route through i/f */
683 +int sifproxyarp __P((int, u_int32_t));
684 + /* Add proxy ARP entry for peer */
685 +int cifproxyarp __P((int, u_int32_t));
686 + /* Delete proxy ARP entry for peer */
687 +u_int32_t GetMask __P((u_int32_t)); /* Get appropriate netmask for address */
688 +int lock __P((char *)); /* Create lock file for device */
689 +int relock __P((int)); /* Rewrite lock file with new pid */
690 +void unlock __P((void)); /* Delete previously-created lock file */
691 +void logwtmp __P((const char *, const char *, const char *));
692 + /* Write entry to wtmp file */
693 +int get_host_seed __P((void)); /* Get host-dependent random number seed */
694 +int have_route_to __P((u_int32_t)); /* Check if route to addr exists */
696 +int set_filters __P((struct bpf_program *pass, struct bpf_program *active));
697 + /* Set filter programs in kernel */
700 +int sipxfaddr __P((int, unsigned long, unsigned char *));
701 +int cipxfaddr __P((int));
703 +int get_if_hwaddr __P((u_char *addr, char *name));
704 +char *get_first_ethernet __P((void));
706 +/* Procedures exported from options.c */
707 +int setipaddr __P((char *, char **, int)); /* Set local/remote ip addresses */
708 +int parse_args __P((int argc, char **argv));
709 + /* Parse options from arguments given */
710 +int options_from_file __P((char *filename, int must_exist, int check_prot,
712 + /* Parse options from an options file */
713 +int options_from_user __P((void)); /* Parse options from user's .ppprc */
714 +int options_for_tty __P((void)); /* Parse options from /etc/ppp/options.tty */
715 +int options_from_list __P((struct wordlist *, int privileged));
716 + /* Parse options from a wordlist */
717 +int getword __P((FILE *f, char *word, int *newlinep, char *filename));
718 + /* Read a word from a file */
719 +void option_error __P((char *fmt, ...));
720 + /* Print an error message about an option */
721 +int int_option __P((char *, int *));
722 + /* Simplified number_option for decimal ints */
723 +void add_options __P((option_t *)); /* Add extra options */
724 +void check_options __P((void)); /* check values after all options parsed */
725 +int override_value __P((const char *, int, const char *));
726 + /* override value if permitted by priority */
727 +void print_options __P((void (*) __P((void *, char *, ...)), void *));
728 + /* print out values of all options */
730 +int parse_dotted_ip __P((char *, u_int32_t *));
733 + * Hooks to enable plugins to change various things.
735 +extern int (*new_phase_hook) __P((int));
736 +extern int (*idle_time_hook) __P((struct ppp_idle *));
737 +extern int (*holdoff_hook) __P((void));
738 +extern int (*pap_check_hook) __P((void));
739 +extern int (*pap_auth_hook) __P((char *user, char *passwd, char **msgp,
740 + struct wordlist **paddrs,
741 + struct wordlist **popts));
742 +extern void (*pap_logout_hook) __P((void));
743 +extern int (*pap_passwd_hook) __P((char *user, char *passwd));
744 +extern int (*allowed_address_hook) __P((u_int32_t addr));
745 +extern void (*ip_up_hook) __P((void));
746 +extern void (*ip_down_hook) __P((void));
747 +extern void (*ip_choose_hook) __P((u_int32_t *));
749 +extern int (*chap_check_hook) __P((void));
750 +extern int (*chap_passwd_hook) __P((char *user, char *passwd));
751 +extern void (*multilink_join_hook) __P((void));
753 +/* Let a plugin snoop sent and received packets. Useful for L2TP */
754 +extern void (*snoop_recv_hook) __P((unsigned char *p, int len));
755 +extern void (*snoop_send_hook) __P((unsigned char *p, int len));
758 + * Inline versions of get/put char/short/long.
759 + * Pointer is advanced; we assume that both arguments
760 + * are lvalues and will already be in registers.
761 + * cp MUST be u_char *.
763 +#define GETCHAR(c, cp) { \
766 +#define PUTCHAR(c, cp) { \
767 + *(cp)++ = (u_char) (c); \
771 +#define GETSHORT(s, cp) { \
772 + (s) = *(cp)++ << 8; \
775 +#define PUTSHORT(s, cp) { \
776 + *(cp)++ = (u_char) ((s) >> 8); \
777 + *(cp)++ = (u_char) (s); \
780 +#define GETLONG(l, cp) { \
781 + (l) = *(cp)++ << 8; \
782 + (l) |= *(cp)++; (l) <<= 8; \
783 + (l) |= *(cp)++; (l) <<= 8; \
786 +#define PUTLONG(l, cp) { \
787 + *(cp)++ = (u_char) ((l) >> 24); \
788 + *(cp)++ = (u_char) ((l) >> 16); \
789 + *(cp)++ = (u_char) ((l) >> 8); \
790 + *(cp)++ = (u_char) (l); \
793 +#define INCPTR(n, cp) ((cp) += (n))
794 +#define DECPTR(n, cp) ((cp) -= (n))
797 + * System dependent definitions for user-level 4.3BSD UNIX implementation.
800 +#define TIMEOUT(r, f, t) timeout((r), (f), (t), 0)
801 +#define UNTIMEOUT(r, f) untimeout((r), (f))
803 +#define BCOPY(s, d, l) memcpy(d, s, l)
804 +#define BZERO(s, n) memset(s, 0, n)
805 +#define BCMP(s1, s2, l) memcmp(s1, s2, l)
807 +#define PRINTMSG(m, l) { info("Remote message: %0.*v", l, m); }
810 + * MAKEHEADER - Add Header fields to a packet.
812 +#define MAKEHEADER(p, t) { \
813 + PUTCHAR(PPP_ALLSTATIONS, p); \
814 + PUTCHAR(PPP_UI, p); \
818 + * Exit status values.
821 +#define EXIT_FATAL_ERROR 1
822 +#define EXIT_OPTION_ERROR 2
823 +#define EXIT_NOT_ROOT 3
824 +#define EXIT_NO_KERNEL_SUPPORT 4
825 +#define EXIT_USER_REQUEST 5
826 +#define EXIT_LOCK_FAILED 6
827 +#define EXIT_OPEN_FAILED 7
828 +#define EXIT_CONNECT_FAILED 8
829 +#define EXIT_PTYCMD_FAILED 9
830 +#define EXIT_NEGOTIATION_FAILED 10
831 +#define EXIT_PEER_AUTH_FAILED 11
832 +#define EXIT_IDLE_TIMEOUT 12
833 +#define EXIT_CONNECT_TIME 13
834 +#define EXIT_CALLBACK 14
835 +#define EXIT_PEER_DEAD 15
836 +#define EXIT_HANGUP 16
837 +#define EXIT_LOOPBACK 17
838 +#define EXIT_INIT_FAILED 18
839 +#define EXIT_AUTH_TOPEER_FAILED 19
841 +#define EXIT_TRAFFIC_LIMIT 20
843 +#define EXIT_CNID_AUTH_FAILED 21
846 + * Debug macros. Slightly useful for finding bugs in pppd, not particularly
847 + * useful for finding out why your connection isn't being established.
854 +#define DEBUGIPV6CP 1
859 +#ifndef LOG_PPP /* we use LOG_LOCAL2 for syslog by default */
860 +#if defined(DEBUGMAIN) || defined(DEBUGFSM) || defined(DEBUGSYS) \
861 + || defined(DEBUGLCP) || defined(DEBUGIPCP) || defined(DEBUGUPAP) \
862 + || defined(DEBUGCHAP) || defined(DEBUG) || defined(DEBUGIPV6CP)
863 +#define LOG_PPP LOG_LOCAL2
865 +#define LOG_PPP LOG_DAEMON
867 +#endif /* LOG_PPP */
870 +#define MAINDEBUG(x) if (debug) dbglog x
872 +#define MAINDEBUG(x)
876 +#define SYSDEBUG(x) if (debug) dbglog x
882 +#define FSMDEBUG(x) if (debug) dbglog x
888 +#define LCPDEBUG(x) if (debug) dbglog x
894 +#define IPCPDEBUG(x) if (debug) dbglog x
896 +#define IPCPDEBUG(x)
900 +#define IPV6CPDEBUG(x) if (debug) dbglog x
902 +#define IPV6CPDEBUG(x)
906 +#define UPAPDEBUG(x) if (debug) dbglog x
908 +#define UPAPDEBUG(x)
912 +#define CHAPDEBUG(x) if (debug) dbglog x
914 +#define CHAPDEBUG(x)
918 +#define IPXCPDEBUG(x) if (debug) dbglog x
920 +#define IPXCPDEBUG(x)
924 +#if defined(sun) || defined(SYSV) || defined(POSIX_SOURCE)
925 +#define SIGTYPE void
928 +#endif /* defined(sun) || defined(SYSV) || defined(POSIX_SOURCE) */
929 +#endif /* SIGTYPE */
932 +#define MIN(a, b) ((a) < (b)? (a): (b))
935 +#define MAX(a, b) ((a) > (b)? (a): (b))
939 +#define offsetof(type, member) ((size_t) &((type *)0)->member)
942 +#endif /* __PPP_H__ */