1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 1996 - 2001 Brian Somers <[email protected]>
5 * based on work by Toshiharu OHNO <[email protected]>
6 * Internet Initiative Japan, Inc (IIJ)
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28 * SUCH DAMAGE.
29 *
30 * $FreeBSD$
31 */
32
33 #include <sys/param.h>
34 #include <netinet/in_systm.h>
35 #include <netinet/in.h>
36 #include <netinet/ip.h>
37 #include <arpa/inet.h>
38 #include <sys/socket.h>
39 #include <net/route.h>
40 #include <netdb.h>
41 #include <sys/un.h>
42
43 #include <ctype.h>
44 #include <errno.h>
45 #include <fcntl.h>
46 #include <paths.h>
47 #include <stdarg.h>
48 #include <stdio.h>
49 #include <stdlib.h>
50 #include <string.h>
51 #include <sys/wait.h>
52 #include <termios.h>
53 #include <unistd.h>
54
55 #ifndef NONAT
56 #ifdef LOCALNAT
57 #include "alias.h"
58 #else
59 #include <alias.h>
60 #endif
61 #endif
62
63 #include "layer.h"
64 #include "defs.h"
65 #include "command.h"
66 #include "mbuf.h"
67 #include "log.h"
68 #include "timer.h"
69 #include "fsm.h"
70 #include "iplist.h"
71 #include "throughput.h"
72 #include "slcompress.h"
73 #include "lqr.h"
74 #include "hdlc.h"
75 #include "lcp.h"
76 #include "ncpaddr.h"
77 #include "ipcp.h"
78 #ifndef NONAT
79 #include "nat_cmd.h"
80 #endif
81 #include "systems.h"
82 #include "filter.h"
83 #include "descriptor.h"
84 #include "main.h"
85 #include "route.h"
86 #include "ccp.h"
87 #include "auth.h"
88 #include "async.h"
89 #include "link.h"
90 #include "physical.h"
91 #include "mp.h"
92 #ifndef NORADIUS
93 #include "radius.h"
94 #endif
95 #include "ipv6cp.h"
96 #include "ncp.h"
97 #include "bundle.h"
98 #include "server.h"
99 #include "prompt.h"
100 #include "chat.h"
101 #include "chap.h"
102 #include "cbcp.h"
103 #include "datalink.h"
104 #include "iface.h"
105 #include "id.h"
106 #include "probe.h"
107
108 /* ``set'' values */
109 #define VAR_AUTHKEY 0
110 #define VAR_DIAL 1
111 #define VAR_LOGIN 2
112 #define VAR_AUTHNAME 3
113 #define VAR_AUTOLOAD 4
114 #define VAR_WINSIZE 5
115 #define VAR_DEVICE 6
116 #define VAR_ACCMAP 7
117 #define VAR_MRRU 8
118 #define VAR_MRU 9
119 #define VAR_MTU 10
120 #define VAR_OPENMODE 11
121 #define VAR_PHONE 12
122 #define VAR_HANGUP 13
123 #define VAR_IDLETIMEOUT 14
124 #define VAR_LQRPERIOD 15
125 #define VAR_LCPRETRY 16
126 #define VAR_CHAPRETRY 17
127 #define VAR_PAPRETRY 18
128 #define VAR_CCPRETRY 19
129 #define VAR_IPCPRETRY 20
130 #define VAR_DNS 21
131 #define VAR_NBNS 22
132 #define VAR_MODE 23
133 #define VAR_CALLBACK 24
134 #define VAR_CBCP 25
135 #define VAR_CHOKED 26
136 #define VAR_SENDPIPE 27
137 #define VAR_RECVPIPE 28
138 #define VAR_RADIUS 29
139 #define VAR_CD 30
140 #define VAR_PARITY 31
141 #define VAR_CRTSCTS 32
142 #define VAR_URGENT 33
143 #define VAR_LOGOUT 34
144 #define VAR_IFQUEUE 35
145 #define VAR_MPPE 36
146 #define VAR_IPV6CPRETRY 37
147 #define VAR_RAD_ALIVE 38
148 #define VAR_PPPOE 39
149 #define VAR_PORT_ID 40
150
151 /* ``accept|deny|disable|enable'' masks */
152 #define NEG_HISMASK (1)
153 #define NEG_MYMASK (2)
154
155 /* ``accept|deny|disable|enable'' values */
156 #define NEG_ACFCOMP 40
157 #define NEG_CHAP05 41
158 #define NEG_CHAP80 42
159 #define NEG_CHAP80LM 43
160 #define NEG_DEFLATE 44
161 #define NEG_DNS 45
162 #define NEG_ECHO 46
163 #define NEG_ENDDISC 47
164 #define NEG_LQR 48
165 #define NEG_PAP 49
166 #define NEG_PPPDDEFLATE 50
167 #define NEG_PRED1 51
168 #define NEG_PROTOCOMP 52
169 #define NEG_SHORTSEQ 53
170 #define NEG_VJCOMP 54
171 #define NEG_MPPE 55
172 #define NEG_CHAP81 56
173
174 const char Version[] = "3.4.2";
175
176 static int ShowCommand(struct cmdargs const *);
177 static int TerminalCommand(struct cmdargs const *);
178 static int QuitCommand(struct cmdargs const *);
179 static int OpenCommand(struct cmdargs const *);
180 static int CloseCommand(struct cmdargs const *);
181 static int DownCommand(struct cmdargs const *);
182 static int SetCommand(struct cmdargs const *);
183 static int LinkCommand(struct cmdargs const *);
184 static int AddCommand(struct cmdargs const *);
185 static int DeleteCommand(struct cmdargs const *);
186 static int NegotiateCommand(struct cmdargs const *);
187 static int ClearCommand(struct cmdargs const *);
188 static int RunListCommand(struct cmdargs const *);
189 static int IfaceNameCommand(struct cmdargs const *arg);
190 static int IfaceAddCommand(struct cmdargs const *);
191 static int IfaceDeleteCommand(struct cmdargs const *);
192 static int IfaceClearCommand(struct cmdargs const *);
193 static int SetProcTitle(struct cmdargs const *);
194 #ifndef NONAT
195 static int NatEnable(struct cmdargs const *);
196 static int NatOption(struct cmdargs const *);
197 #endif
198
199 extern struct libalias *la;
200
201 static const char *
showcx(struct cmdtab const * cmd)202 showcx(struct cmdtab const *cmd)
203 {
204 if (cmd->lauth & LOCAL_CX)
205 return "(c)";
206 else if (cmd->lauth & LOCAL_CX_OPT)
207 return "(o)";
208
209 return "";
210 }
211
212 static int
HelpCommand(struct cmdargs const * arg)213 HelpCommand(struct cmdargs const *arg)
214 {
215 struct cmdtab const *cmd;
216 int n, cmax, dmax, cols, cxlen;
217 const char *cx;
218
219 if (!arg->prompt) {
220 log_Printf(LogWARN, "help: Cannot help without a prompt\n");
221 return 0;
222 }
223
224 if (arg->argc > arg->argn) {
225 for (cmd = arg->cmdtab; cmd->name || cmd->alias; cmd++)
226 if ((cmd->lauth & arg->prompt->auth) &&
227 ((cmd->name && !strcasecmp(cmd->name, arg->argv[arg->argn])) ||
228 (cmd->alias && !strcasecmp(cmd->alias, arg->argv[arg->argn])))) {
229 prompt_Printf(arg->prompt, "%s %s\n", cmd->syntax, showcx(cmd));
230 return 0;
231 }
232 return -1;
233 }
234
235 cmax = dmax = 0;
236 for (cmd = arg->cmdtab; cmd->func; cmd++)
237 if (cmd->name && (cmd->lauth & arg->prompt->auth)) {
238 if ((n = strlen(cmd->name) + strlen(showcx(cmd))) > cmax)
239 cmax = n;
240 if ((n = strlen(cmd->helpmes)) > dmax)
241 dmax = n;
242 }
243
244 cols = 80 / (dmax + cmax + 3);
245 n = 0;
246 prompt_Printf(arg->prompt, "(o) = Optional context,"
247 " (c) = Context required\n");
248 for (cmd = arg->cmdtab; cmd->func; cmd++)
249 if (cmd->name && (cmd->lauth & arg->prompt->auth)) {
250 cx = showcx(cmd);
251 cxlen = cmax - strlen(cmd->name);
252 if (n % cols != 0)
253 prompt_Printf(arg->prompt, " ");
254 prompt_Printf(arg->prompt, "%s%-*.*s: %-*.*s",
255 cmd->name, cxlen, cxlen, cx, dmax, dmax, cmd->helpmes);
256 if (++n % cols == 0)
257 prompt_Printf(arg->prompt, "\n");
258 }
259 if (n % cols != 0)
260 prompt_Printf(arg->prompt, "\n");
261
262 return 0;
263 }
264
265 static int
IdentCommand(struct cmdargs const * arg)266 IdentCommand(struct cmdargs const *arg)
267 {
268 Concatinate(arg->cx->physical->link.lcp.cfg.ident,
269 sizeof arg->cx->physical->link.lcp.cfg.ident,
270 arg->argc - arg->argn, arg->argv + arg->argn);
271 return 0;
272 }
273
274 static int
SendIdentification(struct cmdargs const * arg)275 SendIdentification(struct cmdargs const *arg)
276 {
277 if (arg->cx->state < DATALINK_LCP) {
278 log_Printf(LogWARN, "sendident: link has not reached LCP\n");
279 return 2;
280 }
281 return lcp_SendIdentification(&arg->cx->physical->link.lcp) ? 0 : 1;
282 }
283
284 static int
CloneCommand(struct cmdargs const * arg)285 CloneCommand(struct cmdargs const *arg)
286 {
287 char namelist[LINE_LEN];
288 char *name;
289 int f;
290
291 if (arg->argc == arg->argn)
292 return -1;
293
294 namelist[sizeof namelist - 1] = '\0';
295 for (f = arg->argn; f < arg->argc; f++) {
296 strncpy(namelist, arg->argv[f], sizeof namelist - 1);
297 for(name = strtok(namelist, ", "); name; name = strtok(NULL,", "))
298 bundle_DatalinkClone(arg->bundle, arg->cx, name);
299 }
300
301 return 0;
302 }
303
304 static int
RemoveCommand(struct cmdargs const * arg)305 RemoveCommand(struct cmdargs const *arg)
306 {
307 if (arg->argc != arg->argn)
308 return -1;
309
310 if (arg->cx->state != DATALINK_CLOSED) {
311 log_Printf(LogWARN, "remove: Cannot delete links that aren't closed\n");
312 return 2;
313 }
314
315 bundle_DatalinkRemove(arg->bundle, arg->cx);
316 return 0;
317 }
318
319 static int
RenameCommand(struct cmdargs const * arg)320 RenameCommand(struct cmdargs const *arg)
321 {
322 if (arg->argc != arg->argn + 1)
323 return -1;
324
325 if (bundle_RenameDatalink(arg->bundle, arg->cx, arg->argv[arg->argn]))
326 return 0;
327
328 log_Printf(LogWARN, "%s -> %s: target name already exists\n",
329 arg->cx->name, arg->argv[arg->argn]);
330 return 1;
331 }
332
333 static int
LoadCommand(struct cmdargs const * arg)334 LoadCommand(struct cmdargs const *arg)
335 {
336 const char *err;
337 int n, mode;
338
339 mode = arg->bundle->phys_type.all;
340
341 if (arg->argn < arg->argc) {
342 for (n = arg->argn; n < arg->argc; n++)
343 if ((err = system_IsValid(arg->argv[n], arg->prompt, mode)) != NULL) {
344 log_Printf(LogWARN, "%s: %s\n", arg->argv[n], err);
345 return 1;
346 }
347
348 for (n = arg->argn; n < arg->argc; n++) {
349 bundle_SetLabel(arg->bundle, arg->argv[arg->argc - 1]);
350 system_Select(arg->bundle, arg->argv[n], CONFFILE, arg->prompt, arg->cx);
351 }
352 bundle_SetLabel(arg->bundle, arg->argv[arg->argc - 1]);
353 } else if ((err = system_IsValid("default", arg->prompt, mode)) != NULL) {
354 log_Printf(LogWARN, "default: %s\n", err);
355 return 1;
356 } else {
357 bundle_SetLabel(arg->bundle, "default");
358 system_Select(arg->bundle, "default", CONFFILE, arg->prompt, arg->cx);
359 bundle_SetLabel(arg->bundle, "default");
360 }
361
362 return 0;
363 }
364
365 static int
LogCommand(struct cmdargs const * arg)366 LogCommand(struct cmdargs const *arg)
367 {
368 char buf[LINE_LEN];
369
370 if (arg->argn < arg->argc) {
371 char *argv[MAXARGS];
372 int argc = arg->argc - arg->argn;
373
374 if (argc >= (int)(sizeof argv / sizeof argv[0])) {
375 argc = sizeof argv / sizeof argv[0] - 1;
376 log_Printf(LogWARN, "Truncating log command to %d args\n", argc);
377 }
378 command_Expand(argv, argc, arg->argv + arg->argn, arg->bundle, 1, getpid());
379 Concatinate(buf, sizeof buf, argc, (const char *const *)argv);
380 log_Printf(LogLOG, "%s\n", buf);
381 command_Free(argc, argv);
382 return 0;
383 }
384
385 return -1;
386 }
387
388 static int
SaveCommand(struct cmdargs const * arg __unused)389 SaveCommand(struct cmdargs const *arg __unused)
390 {
391 log_Printf(LogWARN, "save command is not yet implemented.\n");
392 return 1;
393 }
394
395 static int
DialCommand(struct cmdargs const * arg)396 DialCommand(struct cmdargs const *arg)
397 {
398 int res;
399
400 if ((arg->cx && !(arg->cx->physical->type & (PHYS_INTERACTIVE|PHYS_AUTO)))
401 || (!arg->cx &&
402 (arg->bundle->phys_type.all & ~(PHYS_INTERACTIVE|PHYS_AUTO)))) {
403 log_Printf(LogWARN, "Manual dial is only available for auto and"
404 " interactive links\n");
405 return 1;
406 }
407
408 if (arg->argc > arg->argn && (res = LoadCommand(arg)) != 0)
409 return res;
410
411 bundle_Open(arg->bundle, arg->cx ? arg->cx->name : NULL, PHYS_ALL, 1);
412
413 return 0;
414 }
415
416 #define isinword(ch) (isalnum(ch) || (ch) == '_')
417
418 static char *
strstrword(char * big,const char * little)419 strstrword(char *big, const char *little)
420 {
421 /* Get the first occurrence of the word ``little'' in ``big'' */
422 char *pos;
423 int len;
424
425 pos = big;
426 len = strlen(little);
427
428 while ((pos = strstr(pos, little)) != NULL)
429 if ((pos != big && isinword(pos[-1])) || isinword(pos[len]))
430 pos++;
431 else if (pos != big && pos[-1] == '\\')
432 memmove(pos - 1, pos, strlen(pos) + 1);
433 else
434 break;
435
436 return pos;
437 }
438
439 static char *
subst(char * tgt,const char * oldstr,const char * newstr)440 subst(char *tgt, const char *oldstr, const char *newstr)
441 {
442 /* tgt is a malloc()d area... realloc() as necessary */
443 char *word, *ntgt;
444 int ltgt, loldstr, lnewstr, pos;
445
446 if ((word = strstrword(tgt, oldstr)) == NULL)
447 return tgt;
448
449 ltgt = strlen(tgt) + 1;
450 loldstr = strlen(oldstr);
451 lnewstr = strlen(newstr);
452 do {
453 pos = word - tgt;
454 if (loldstr > lnewstr)
455 bcopy(word + loldstr, word + lnewstr, ltgt - pos - loldstr);
456 if (loldstr != lnewstr) {
457 ntgt = realloc(tgt, ltgt += lnewstr - loldstr);
458 if (ntgt == NULL)
459 break; /* Oh wonderful ! */
460 word = ntgt + pos;
461 tgt = ntgt;
462 }
463 if (lnewstr > loldstr)
464 bcopy(word + loldstr, word + lnewstr, ltgt - pos - lnewstr);
465 bcopy(newstr, word, lnewstr);
466 } while ((word = strstrword(word, oldstr)));
467
468 return tgt;
469 }
470
471 static char *
substip(char * tgt,const char * oldstr,struct in_addr ip)472 substip(char *tgt, const char *oldstr, struct in_addr ip)
473 {
474 return subst(tgt, oldstr, inet_ntoa(ip));
475 }
476
477 static char *
substlong(char * tgt,const char * oldstr,long l)478 substlong(char *tgt, const char *oldstr, long l)
479 {
480 char buf[23];
481
482 snprintf(buf, sizeof buf, "%ld", l);
483
484 return subst(tgt, oldstr, buf);
485 }
486
487 static char *
substull(char * tgt,const char * oldstr,unsigned long long ull)488 substull(char *tgt, const char *oldstr, unsigned long long ull)
489 {
490 char buf[21];
491
492 snprintf(buf, sizeof buf, "%llu", ull);
493
494 return subst(tgt, oldstr, buf);
495 }
496
497
498 #ifndef NOINET6
499 static char *
substipv6(char * tgt,const char * oldstr,const struct ncpaddr * ip)500 substipv6(char *tgt, const char *oldstr, const struct ncpaddr *ip)
501 {
502 return subst(tgt, oldstr, ncpaddr_ntoa(ip));
503 }
504
505 #ifndef NORADIUS
506 static char *
substipv6prefix(char * tgt,const char * oldstr,const uint8_t * ipv6prefix)507 substipv6prefix(char *tgt, const char *oldstr, const uint8_t *ipv6prefix)
508 {
509 uint8_t ipv6addr[INET6_ADDRSTRLEN];
510 uint8_t prefix[INET6_ADDRSTRLEN + sizeof("/128") - 1];
511
512 if (ipv6prefix) {
513 inet_ntop(AF_INET6, &ipv6prefix[2], ipv6addr, sizeof(ipv6addr));
514 snprintf(prefix, sizeof(prefix), "%s/%d", ipv6addr, ipv6prefix[1]);
515 } else
516 prefix[0] = '\0';
517 return subst(tgt, oldstr, prefix);
518 }
519 #endif
520 #endif
521
522 void
command_Expand(char ** nargv,int argc,char const * const * oargv,struct bundle * bundle,int inc0,pid_t pid)523 command_Expand(char **nargv, int argc, char const *const *oargv,
524 struct bundle *bundle, int inc0, pid_t pid)
525 {
526 int arg, secs;
527 char uptime[20];
528 unsigned long long oin, oout, pin, pout;
529
530 if (inc0)
531 arg = 0; /* Start at arg 0 */
532 else {
533 nargv[0] = strdup(oargv[0]);
534 arg = 1;
535 }
536
537 secs = bundle_Uptime(bundle);
538 snprintf(uptime, sizeof uptime, "%d:%02d:%02d",
539 secs / 3600, (secs / 60) % 60, secs % 60);
540 oin = bundle->ncp.ipcp.throughput.OctetsIn;
541 oout = bundle->ncp.ipcp.throughput.OctetsOut;
542 pin = bundle->ncp.ipcp.throughput.PacketsIn;
543 pout = bundle->ncp.ipcp.throughput.PacketsOut;
544 #ifndef NOINET6
545 oin += bundle->ncp.ipv6cp.throughput.OctetsIn;
546 oout += bundle->ncp.ipv6cp.throughput.OctetsOut;
547 pin += bundle->ncp.ipv6cp.throughput.PacketsIn;
548 pout += bundle->ncp.ipv6cp.throughput.PacketsOut;
549 #endif
550
551 for (; arg < argc; arg++) {
552 nargv[arg] = strdup(oargv[arg]);
553 nargv[arg] = subst(nargv[arg], "AUTHNAME", bundle->cfg.auth.name);
554 nargv[arg] = substip(nargv[arg], "DNS0", bundle->ncp.ipcp.ns.dns[0]);
555 nargv[arg] = substip(nargv[arg], "DNS1", bundle->ncp.ipcp.ns.dns[1]);
556 nargv[arg] = subst(nargv[arg], "ENDDISC",
557 mp_Enddisc(bundle->ncp.mp.cfg.enddisc.class,
558 bundle->ncp.mp.cfg.enddisc.address,
559 bundle->ncp.mp.cfg.enddisc.len));
560 nargv[arg] = substip(nargv[arg], "HISADDR", bundle->ncp.ipcp.peer_ip);
561 #ifndef NOINET6
562 nargv[arg] = substipv6(nargv[arg], "HISADDR6", &bundle->ncp.ipv6cp.hisaddr);
563 #endif
564 nargv[arg] = subst(nargv[arg], "INTERFACE", bundle->iface->name);
565 nargv[arg] = substull(nargv[arg], "IPOCTETSIN",
566 bundle->ncp.ipcp.throughput.OctetsIn);
567 nargv[arg] = substull(nargv[arg], "IPOCTETSOUT",
568 bundle->ncp.ipcp.throughput.OctetsOut);
569 nargv[arg] = substull(nargv[arg], "IPPACKETSIN",
570 bundle->ncp.ipcp.throughput.PacketsIn);
571 nargv[arg] = substull(nargv[arg], "IPPACKETSOUT",
572 bundle->ncp.ipcp.throughput.PacketsOut);
573 #ifndef NOINET6
574 nargv[arg] = substull(nargv[arg], "IPV6OCTETSIN",
575 bundle->ncp.ipv6cp.throughput.OctetsIn);
576 nargv[arg] = substull(nargv[arg], "IPV6OCTETSOUT",
577 bundle->ncp.ipv6cp.throughput.OctetsOut);
578 nargv[arg] = substull(nargv[arg], "IPV6PACKETSIN",
579 bundle->ncp.ipv6cp.throughput.PacketsIn);
580 nargv[arg] = substull(nargv[arg], "IPV6PACKETSOUT",
581 bundle->ncp.ipv6cp.throughput.PacketsOut);
582 #endif
583 nargv[arg] = subst(nargv[arg], "LABEL", bundle_GetLabel(bundle));
584 nargv[arg] = substip(nargv[arg], "MYADDR", bundle->ncp.ipcp.my_ip);
585 #ifndef NOINET6
586 nargv[arg] = substipv6(nargv[arg], "MYADDR6", &bundle->ncp.ipv6cp.myaddr);
587 #ifndef NORADIUS
588 nargv[arg] = substipv6prefix(nargv[arg], "IPV6PREFIX",
589 bundle->radius.ipv6prefix);
590 #endif
591 #endif
592 nargv[arg] = substull(nargv[arg], "OCTETSIN", oin);
593 nargv[arg] = substull(nargv[arg], "OCTETSOUT", oout);
594 nargv[arg] = substull(nargv[arg], "PACKETSIN", pin);
595 nargv[arg] = substull(nargv[arg], "PACKETSOUT", pout);
596 nargv[arg] = subst(nargv[arg], "PEER_ENDDISC",
597 mp_Enddisc(bundle->ncp.mp.peer.enddisc.class,
598 bundle->ncp.mp.peer.enddisc.address,
599 bundle->ncp.mp.peer.enddisc.len));
600 nargv[arg] = substlong(nargv[arg], "PROCESSID", pid);
601 if (server.cfg.port)
602 nargv[arg] = substlong(nargv[arg], "SOCKNAME", server.cfg.port);
603 else
604 nargv[arg] = subst(nargv[arg], "SOCKNAME", server.cfg.sockname);
605 nargv[arg] = subst(nargv[arg], "UPTIME", uptime);
606 nargv[arg] = subst(nargv[arg], "USER", bundle->ncp.mp.peer.authname);
607 nargv[arg] = subst(nargv[arg], "VERSION", Version);
608 }
609 nargv[arg] = NULL;
610 }
611
612 void
command_Free(int argc,char ** argv)613 command_Free(int argc, char **argv)
614 {
615 while (argc) {
616 free(*argv);
617 argc--;
618 argv++;
619 }
620 }
621
622 static int
ShellCommand(struct cmdargs const * arg,int bg)623 ShellCommand(struct cmdargs const *arg, int bg)
624 {
625 const char *shell;
626 pid_t shpid, pid;
627
628 #ifdef SHELL_ONLY_INTERACTIVELY
629 /* we're only allowed to shell when we run ppp interactively */
630 if (arg->prompt && arg->prompt->owner) {
631 log_Printf(LogWARN, "Can't start a shell from a network connection\n");
632 return 1;
633 }
634 #endif
635
636 if (arg->argc == arg->argn) {
637 if (!arg->prompt) {
638 log_Printf(LogWARN, "Can't start an interactive shell from"
639 " a config file\n");
640 return 1;
641 } else if (arg->prompt->owner) {
642 log_Printf(LogWARN, "Can't start an interactive shell from"
643 " a socket connection\n");
644 return 1;
645 } else if (bg) {
646 log_Printf(LogWARN, "Can only start an interactive shell in"
647 " the foreground mode\n");
648 return 1;
649 }
650 }
651
652 pid = getpid();
653 if ((shpid = fork()) == 0) {
654 int i, fd;
655
656 if ((shell = getenv("SHELL")) == NULL)
657 shell = _PATH_BSHELL;
658
659 timer_TermService();
660
661 if (arg->prompt)
662 fd = arg->prompt->fd_out;
663 else if ((fd = open(_PATH_DEVNULL, O_RDWR)) == -1) {
664 log_Printf(LogALERT, "Failed to open %s: %s\n",
665 _PATH_DEVNULL, strerror(errno));
666 exit(1);
667 }
668 dup2(fd, STDIN_FILENO);
669 dup2(fd, STDOUT_FILENO);
670 dup2(fd, STDERR_FILENO);
671 for (i = getdtablesize(); i > STDERR_FILENO; i--)
672 fcntl(i, F_SETFD, 1);
673
674 #ifndef NOSUID
675 setuid(ID0realuid());
676 #endif
677 if (arg->argc > arg->argn) {
678 /* substitute pseudo args */
679 char *argv[MAXARGS];
680 int argc = arg->argc - arg->argn;
681
682 if (argc >= (int)(sizeof argv / sizeof argv[0])) {
683 argc = sizeof argv / sizeof argv[0] - 1;
684 log_Printf(LogWARN, "Truncating shell command to %d args\n", argc);
685 }
686 command_Expand(argv, argc, arg->argv + arg->argn, arg->bundle, 0, pid);
687 if (bg) {
688 pid_t p;
689
690 p = getpid();
691 if (daemon(1, 1) == -1) {
692 log_Printf(LogERROR, "%ld: daemon: %s\n", (long)p, strerror(errno));
693 exit(1);
694 }
695 } else if (arg->prompt)
696 printf("ppp: Pausing until %s finishes\n", arg->argv[arg->argn]);
697 execvp(argv[0], argv);
698 } else {
699 if (arg->prompt)
700 printf("ppp: Pausing until %s finishes\n", shell);
701 prompt_TtyOldMode(arg->prompt);
702 execl(shell, shell, (char *)NULL);
703 }
704
705 log_Printf(LogWARN, "exec() of %s failed: %s\n",
706 arg->argc > arg->argn ? arg->argv[arg->argn] : shell,
707 strerror(errno));
708 _exit(255);
709 }
710
711 if (shpid == (pid_t)-1)
712 log_Printf(LogERROR, "Fork failed: %s\n", strerror(errno));
713 else {
714 int status;
715 waitpid(shpid, &status, 0);
716 }
717
718 if (arg->prompt && !arg->prompt->owner)
719 prompt_TtyCommandMode(arg->prompt);
720
721 return 0;
722 }
723
724 static int
BgShellCommand(struct cmdargs const * arg)725 BgShellCommand(struct cmdargs const *arg)
726 {
727 if (arg->argc == arg->argn)
728 return -1;
729 return ShellCommand(arg, 1);
730 }
731
732 static int
FgShellCommand(struct cmdargs const * arg)733 FgShellCommand(struct cmdargs const *arg)
734 {
735 return ShellCommand(arg, 0);
736 }
737
738 static int
ResolvCommand(struct cmdargs const * arg)739 ResolvCommand(struct cmdargs const *arg)
740 {
741 if (arg->argc == arg->argn + 1) {
742 if (!strcasecmp(arg->argv[arg->argn], "reload"))
743 ipcp_LoadDNS(&arg->bundle->ncp.ipcp);
744 else if (!strcasecmp(arg->argv[arg->argn], "restore"))
745 ipcp_RestoreDNS(&arg->bundle->ncp.ipcp);
746 else if (!strcasecmp(arg->argv[arg->argn], "rewrite"))
747 ipcp_WriteDNS(&arg->bundle->ncp.ipcp);
748 else if (!strcasecmp(arg->argv[arg->argn], "readonly"))
749 arg->bundle->ncp.ipcp.ns.writable = 0;
750 else if (!strcasecmp(arg->argv[arg->argn], "writable"))
751 arg->bundle->ncp.ipcp.ns.writable = 1;
752 else
753 return -1;
754
755 return 0;
756 }
757
758 return -1;
759 }
760
761 #ifndef NONAT
762 static struct cmdtab const NatCommands[] =
763 {
764 {"addr", NULL, nat_RedirectAddr, LOCAL_AUTH,
765 "static address translation", "nat addr [addr_local addr_alias]", NULL},
766 {"deny_incoming", NULL, NatOption, LOCAL_AUTH,
767 "stop incoming connections", "nat deny_incoming yes|no",
768 (const void *) PKT_ALIAS_DENY_INCOMING},
769 {"enable", NULL, NatEnable, LOCAL_AUTH,
770 "enable NAT", "nat enable yes|no", NULL},
771 {"log", NULL, NatOption, LOCAL_AUTH,
772 "log NAT link creation", "nat log yes|no",
773 (const void *) PKT_ALIAS_LOG},
774 {"port", NULL, nat_RedirectPort, LOCAL_AUTH, "port redirection",
775 "nat port proto localaddr:port[-port] aliasport[-aliasport]", NULL},
776 {"proto", NULL, nat_RedirectProto, LOCAL_AUTH, "protocol redirection",
777 "nat proto proto localIP [publicIP [remoteIP]]", NULL},
778 {"proxy", NULL, nat_ProxyRule, LOCAL_AUTH,
779 "proxy control", "nat proxy server host[:port] ...", NULL},
780 #ifndef NO_FW_PUNCH
781 {"punch_fw", NULL, nat_PunchFW, LOCAL_AUTH,
782 "firewall control", "nat punch_fw [base count]", NULL},
783 #endif
784 {"skinny_port", NULL, nat_SkinnyPort, LOCAL_AUTH,
785 "TCP port used by Skinny Station protocol", "nat skinny_port [port]", NULL},
786 {"same_ports", NULL, NatOption, LOCAL_AUTH,
787 "try to leave port numbers unchanged", "nat same_ports yes|no",
788 (const void *) PKT_ALIAS_SAME_PORTS},
789 {"target", NULL, nat_SetTarget, LOCAL_AUTH,
790 "Default address for incoming connections", "nat target addr", NULL},
791 {"unregistered_only", NULL, NatOption, LOCAL_AUTH,
792 "translate unregistered (private) IP address space only",
793 "nat unregistered_only yes|no",
794 (const void *) PKT_ALIAS_UNREGISTERED_ONLY},
795 {"use_sockets", NULL, NatOption, LOCAL_AUTH,
796 "allocate host sockets", "nat use_sockets yes|no",
797 (const void *) PKT_ALIAS_USE_SOCKETS},
798 {"help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH,
799 "Display this message", "nat help|? [command]", NatCommands},
800 {NULL, NULL, NULL, 0, NULL, NULL, NULL},
801 };
802 #endif
803
804 static struct cmdtab const AllowCommands[] = {
805 {"modes", "mode", AllowModes, LOCAL_AUTH,
806 "Only allow certain ppp modes", "allow modes mode...", NULL},
807 {"users", "user", AllowUsers, LOCAL_AUTH,
808 "Only allow ppp access to certain users", "allow users logname...", NULL},
809 {"help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH,
810 "Display this message", "allow help|? [command]", AllowCommands},
811 {NULL, NULL, NULL, 0, NULL, NULL, NULL},
812 };
813
814 static struct cmdtab const IfaceCommands[] =
815 {
816 {"add", NULL, IfaceAddCommand, LOCAL_AUTH,
817 "Add iface address", "iface add addr[/bits| mask] peer", NULL},
818 {NULL, "add!", IfaceAddCommand, LOCAL_AUTH,
819 "Add or change an iface address", "iface add! addr[/bits| mask] peer",
820 (void *)1},
821 {"clear", NULL, IfaceClearCommand, LOCAL_AUTH,
822 "Clear iface address(es)", "iface clear [INET | INET6]", NULL},
823 {"delete", "rm", IfaceDeleteCommand, LOCAL_AUTH,
824 "Delete iface address", "iface delete addr", NULL},
825 {NULL, "rm!", IfaceDeleteCommand, LOCAL_AUTH,
826 "Delete iface address", "iface delete addr", (void *)1},
827 {NULL, "delete!", IfaceDeleteCommand, LOCAL_AUTH,
828 "Delete iface address", "iface delete addr", (void *)1},
829 {"name", NULL, IfaceNameCommand, LOCAL_AUTH,
830 "Set iface name", "iface name name", NULL},
831 {"description", NULL, iface_Descr, LOCAL_AUTH,
832 "Set iface description", "iface description text", NULL},
833 {"show", NULL, iface_Show, LOCAL_AUTH,
834 "Show iface address(es)", "iface show", NULL},
835 {"help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH,
836 "Display this message", "nat help|? [command]", IfaceCommands},
837 {NULL, NULL, NULL, 0, NULL, NULL, NULL},
838 };
839
840 static struct cmdtab const Commands[] = {
841 {"accept", NULL, NegotiateCommand, LOCAL_AUTH | LOCAL_CX_OPT,
842 "accept option request", "accept option ..", NULL},
843 {"add", NULL, AddCommand, LOCAL_AUTH,
844 "add route", "add dest mask gateway", NULL},
845 {NULL, "add!", AddCommand, LOCAL_AUTH,
846 "add or change route", "add! dest mask gateway", (void *)1},
847 {"allow", "auth", RunListCommand, LOCAL_AUTH,
848 "Allow ppp access", "allow users|modes ....", AllowCommands},
849 {"bg", "!bg", BgShellCommand, LOCAL_AUTH,
850 "Run a background command", "[!]bg command", NULL},
851 {"clear", NULL, ClearCommand, LOCAL_AUTH | LOCAL_CX_OPT,
852 "Clear throughput statistics",
853 "clear ipcp|ipv6cp|physical [current|overall|peak]...", NULL},
854 {"clone", NULL, CloneCommand, LOCAL_AUTH | LOCAL_CX,
855 "Clone a link", "clone newname...", NULL},
856 {"close", NULL, CloseCommand, LOCAL_AUTH | LOCAL_CX_OPT,
857 "Close an FSM", "close [lcp|ccp]", NULL},
858 {"delete", NULL, DeleteCommand, LOCAL_AUTH,
859 "delete route", "delete dest", NULL},
860 {NULL, "delete!", DeleteCommand, LOCAL_AUTH,
861 "delete a route if it exists", "delete! dest", (void *)1},
862 {"deny", NULL, NegotiateCommand, LOCAL_AUTH | LOCAL_CX_OPT,
863 "Deny option request", "deny option ..", NULL},
864 {"dial", "call", DialCommand, LOCAL_AUTH | LOCAL_CX_OPT,
865 "Dial and login", "dial|call [system ...]", NULL},
866 {"disable", NULL, NegotiateCommand, LOCAL_AUTH | LOCAL_CX_OPT,
867 "Disable option", "disable option ..", NULL},
868 {"down", NULL, DownCommand, LOCAL_AUTH | LOCAL_CX_OPT,
869 "Generate a down event", "down [ccp|lcp]", NULL},
870 {"enable", NULL, NegotiateCommand, LOCAL_AUTH | LOCAL_CX_OPT,
871 "Enable option", "enable option ..", NULL},
872 {"ident", NULL, IdentCommand, LOCAL_AUTH | LOCAL_CX,
873 "Set the link identity", "ident text...", NULL},
874 {"iface", "interface", RunListCommand, LOCAL_AUTH,
875 "interface control", "iface option ...", IfaceCommands},
876 {"link", "datalink", LinkCommand, LOCAL_AUTH,
877 "Link specific commands", "link name command ...", NULL},
878 {"load", NULL, LoadCommand, LOCAL_AUTH | LOCAL_CX_OPT,
879 "Load settings", "load [system ...]", NULL},
880 {"log", NULL, LogCommand, LOCAL_AUTH | LOCAL_CX_OPT,
881 "log information", "log word ...", NULL},
882 #ifndef NONAT
883 {"nat", "alias", RunListCommand, LOCAL_AUTH,
884 "NAT control", "nat option yes|no", NatCommands},
885 #endif
886 {"open", NULL, OpenCommand, LOCAL_AUTH | LOCAL_CX_OPT,
887 "Open an FSM", "open! [lcp|ccp|ipcp]", (void *)1},
888 {"passwd", NULL, PasswdCommand, LOCAL_NO_AUTH,
889 "Password for manipulation", "passwd LocalPassword", NULL},
890 {"quit", "bye", QuitCommand, LOCAL_AUTH | LOCAL_NO_AUTH,
891 "Quit PPP program", "quit|bye [all]", NULL},
892 {"remove", "rm", RemoveCommand, LOCAL_AUTH | LOCAL_CX,
893 "Remove a link", "remove", NULL},
894 {"rename", "mv", RenameCommand, LOCAL_AUTH | LOCAL_CX,
895 "Rename a link", "rename name", NULL},
896 {"resolv", NULL, ResolvCommand, LOCAL_AUTH,
897 "Manipulate resolv.conf", "resolv readonly|reload|restore|rewrite|writable",
898 NULL},
899 {"save", NULL, SaveCommand, LOCAL_AUTH,
900 "Save settings", "save", NULL},
901 {"sendident", NULL, SendIdentification, LOCAL_AUTH | LOCAL_CX,
902 "Transmit the link identity", "sendident", NULL},
903 {"set", "setup", SetCommand, LOCAL_AUTH | LOCAL_CX_OPT,
904 "Set parameters", "set[up] var value", NULL},
905 {"shell", "!", FgShellCommand, LOCAL_AUTH,
906 "Run a subshell", "shell|! [sh command]", NULL},
907 {"show", NULL, ShowCommand, LOCAL_AUTH | LOCAL_CX_OPT,
908 "Show status and stats", "show var", NULL},
909 {"term", NULL, TerminalCommand, LOCAL_AUTH | LOCAL_CX,
910 "Enter terminal mode", "term", NULL},
911 {"help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH,
912 "Display this message", "help|? [command]", Commands},
913 {NULL, NULL, NULL, 0, NULL, NULL, NULL},
914 };
915
916 static int
ShowEscape(struct cmdargs const * arg)917 ShowEscape(struct cmdargs const *arg)
918 {
919 if (arg->cx->physical->async.cfg.EscMap[32]) {
920 int code, bit;
921 const char *sep = "";
922
923 for (code = 0; code < 32; code++)
924 if (arg->cx->physical->async.cfg.EscMap[code])
925 for (bit = 0; bit < 8; bit++)
926 if (arg->cx->physical->async.cfg.EscMap[code] & (1 << bit)) {
927 prompt_Printf(arg->prompt, "%s0x%02x", sep, (code << 3) + bit);
928 sep = ", ";
929 }
930 prompt_Printf(arg->prompt, "\n");
931 }
932 return 0;
933 }
934
935 static int
ShowTimerList(struct cmdargs const * arg)936 ShowTimerList(struct cmdargs const *arg)
937 {
938 timer_Show(0, arg->prompt);
939 return 0;
940 }
941
942 static int
ShowStopped(struct cmdargs const * arg)943 ShowStopped(struct cmdargs const *arg)
944 {
945 prompt_Printf(arg->prompt, " Stopped Timer: LCP: ");
946 if (!arg->cx->physical->link.lcp.fsm.StoppedTimer.load)
947 prompt_Printf(arg->prompt, "Disabled");
948 else
949 prompt_Printf(arg->prompt, "%ld secs",
950 arg->cx->physical->link.lcp.fsm.StoppedTimer.load / SECTICKS);
951
952 prompt_Printf(arg->prompt, ", CCP: ");
953 if (!arg->cx->physical->link.ccp.fsm.StoppedTimer.load)
954 prompt_Printf(arg->prompt, "Disabled");
955 else
956 prompt_Printf(arg->prompt, "%ld secs",
957 arg->cx->physical->link.ccp.fsm.StoppedTimer.load / SECTICKS);
958
959 prompt_Printf(arg->prompt, "\n");
960
961 return 0;
962 }
963
964 static int
ShowVersion(struct cmdargs const * arg)965 ShowVersion(struct cmdargs const *arg)
966 {
967 prompt_Printf(arg->prompt, "PPP Version %s\n", Version);
968 return 0;
969 }
970
971 static int
ShowProtocolStats(struct cmdargs const * arg)972 ShowProtocolStats(struct cmdargs const *arg)
973 {
974 struct link *l = command_ChooseLink(arg);
975
976 prompt_Printf(arg->prompt, "%s:\n", l->name);
977 link_ReportProtocolStatus(l, arg->prompt);
978 return 0;
979 }
980
981 static struct cmdtab const ShowCommands[] = {
982 {"bundle", NULL, bundle_ShowStatus, LOCAL_AUTH,
983 "bundle details", "show bundle", NULL},
984 {"ccp", NULL, ccp_ReportStatus, LOCAL_AUTH | LOCAL_CX_OPT,
985 "CCP status", "show cpp", NULL},
986 {"compress", NULL, sl_Show, LOCAL_AUTH,
987 "VJ compression stats", "show compress", NULL},
988 {"escape", NULL, ShowEscape, LOCAL_AUTH | LOCAL_CX,
989 "escape characters", "show escape", NULL},
990 {"filter", NULL, filter_Show, LOCAL_AUTH,
991 "packet filters", "show filter [in|out|dial|alive]", NULL},
992 {"hdlc", NULL, hdlc_ReportStatus, LOCAL_AUTH | LOCAL_CX,
993 "HDLC errors", "show hdlc", NULL},
994 {"iface", "interface", iface_Show, LOCAL_AUTH,
995 "Interface status", "show iface", NULL},
996 {"ipcp", NULL, ipcp_Show, LOCAL_AUTH,
997 "IPCP status", "show ipcp", NULL},
998 #ifndef NOINET6
999 {"ipv6cp", NULL, ipv6cp_Show, LOCAL_AUTH,
1000 "IPV6CP status", "show ipv6cp", NULL},
1001 #endif
1002 {"layers", NULL, link_ShowLayers, LOCAL_AUTH | LOCAL_CX_OPT,
1003 "Protocol layers", "show layers", NULL},
1004 {"lcp", NULL, lcp_ReportStatus, LOCAL_AUTH | LOCAL_CX,
1005 "LCP status", "show lcp", NULL},
1006 {"link", "datalink", datalink_Show, LOCAL_AUTH | LOCAL_CX,
1007 "(high-level) link info", "show link", NULL},
1008 {"links", NULL, bundle_ShowLinks, LOCAL_AUTH,
1009 "available link names", "show links", NULL},
1010 {"log", NULL, log_ShowLevel, LOCAL_AUTH,
1011 "log levels", "show log", NULL},
1012 {"mem", NULL, mbuf_Show, LOCAL_AUTH,
1013 "mbuf allocations", "show mem", NULL},
1014 {"ncp", NULL, ncp_Show, LOCAL_AUTH,
1015 "NCP status", "show ncp", NULL},
1016 {"physical", NULL, physical_ShowStatus, LOCAL_AUTH | LOCAL_CX,
1017 "(low-level) link info", "show physical", NULL},
1018 {"mp", "multilink", mp_ShowStatus, LOCAL_AUTH,
1019 "multilink setup", "show mp", NULL},
1020 {"proto", NULL, ShowProtocolStats, LOCAL_AUTH | LOCAL_CX_OPT,
1021 "protocol summary", "show proto", NULL},
1022 {"route", NULL, route_Show, LOCAL_AUTH,
1023 "routing table", "show route", NULL},
1024 {"stopped", NULL, ShowStopped, LOCAL_AUTH | LOCAL_CX,
1025 "STOPPED timeout", "show stopped", NULL},
1026 {"timers", NULL, ShowTimerList, LOCAL_AUTH,
1027 "alarm timers", "show timers", NULL},
1028 {"version", NULL, ShowVersion, LOCAL_NO_AUTH | LOCAL_AUTH,
1029 "version string", "show version", NULL},
1030 {"who", NULL, log_ShowWho, LOCAL_AUTH,
1031 "client list", "show who", NULL},
1032 {"help", "?", HelpCommand, LOCAL_NO_AUTH | LOCAL_AUTH,
1033 "Display this message", "show help|? [command]", ShowCommands},
1034 {NULL, NULL, NULL, 0, NULL, NULL, NULL},
1035 };
1036
1037 static struct cmdtab const *
FindCommand(struct cmdtab const * cmds,const char * str,int * pmatch)1038 FindCommand(struct cmdtab const *cmds, const char *str, int *pmatch)
1039 {
1040 int nmatch;
1041 int len;
1042 struct cmdtab const *found;
1043
1044 found = NULL;
1045 len = strlen(str);
1046 nmatch = 0;
1047 while (cmds->func) {
1048 if (cmds->name && strncasecmp(str, cmds->name, len) == 0) {
1049 if (cmds->name[len] == '\0') {
1050 *pmatch = 1;
1051 return cmds;
1052 }
1053 nmatch++;
1054 found = cmds;
1055 } else if (cmds->alias && strncasecmp(str, cmds->alias, len) == 0) {
1056 if (cmds->alias[len] == '\0') {
1057 *pmatch = 1;
1058 return cmds;
1059 }
1060 nmatch++;
1061 found = cmds;
1062 }
1063 cmds++;
1064 }
1065 *pmatch = nmatch;
1066 return found;
1067 }
1068
1069 static const char *
mkPrefix(int argc,char const * const * argv,char * tgt,int sz)1070 mkPrefix(int argc, char const *const *argv, char *tgt, int sz)
1071 {
1072 int f, tlen, len;
1073
1074 tlen = 0;
1075 for (f = 0; f < argc && tlen < sz - 2; f++) {
1076 if (f)
1077 tgt[tlen++] = ' ';
1078 len = strlen(argv[f]);
1079 if (len > sz - tlen - 1)
1080 len = sz - tlen - 1;
1081 strncpy(tgt+tlen, argv[f], len);
1082 tlen += len;
1083 }
1084 tgt[tlen] = '\0';
1085 return tgt;
1086 }
1087
1088 static int
FindExec(struct bundle * bundle,struct cmdtab const * cmds,int argc,int argn,char const * const * argv,struct prompt * prompt,struct datalink * cx)1089 FindExec(struct bundle *bundle, struct cmdtab const *cmds, int argc, int argn,
1090 char const *const *argv, struct prompt *prompt, struct datalink *cx)
1091 {
1092 struct cmdtab const *cmd;
1093 int val = 1;
1094 int nmatch;
1095 struct cmdargs arg;
1096 char prefix[100];
1097
1098 cmd = FindCommand(cmds, argv[argn], &nmatch);
1099 if (nmatch > 1)
1100 log_Printf(LogWARN, "%s: Ambiguous command\n",
1101 mkPrefix(argn+1, argv, prefix, sizeof prefix));
1102 else if (cmd && (!prompt || (cmd->lauth & prompt->auth))) {
1103 if ((cmd->lauth & LOCAL_CX) && !cx)
1104 /* We've got no context, but we require it */
1105 cx = bundle2datalink(bundle, NULL);
1106
1107 if ((cmd->lauth & LOCAL_CX) && !cx)
1108 log_Printf(LogWARN, "%s: No context (use the `link' command)\n",
1109 mkPrefix(argn+1, argv, prefix, sizeof prefix));
1110 else {
1111 if (cx && !(cmd->lauth & (LOCAL_CX|LOCAL_CX_OPT))) {
1112 log_Printf(LogWARN, "%s: Redundant context (%s) ignored\n",
1113 mkPrefix(argn+1, argv, prefix, sizeof prefix), cx->name);
1114 cx = NULL;
1115 }
1116 arg.cmdtab = cmds;
1117 arg.cmd = cmd;
1118 arg.argc = argc;
1119 arg.argn = argn+1;
1120 arg.argv = argv;
1121 arg.bundle = bundle;
1122 arg.cx = cx;
1123 arg.prompt = prompt;
1124 val = (*cmd->func) (&arg);
1125 }
1126 } else
1127 log_Printf(LogWARN, "%s: Invalid command\n",
1128 mkPrefix(argn+1, argv, prefix, sizeof prefix));
1129
1130 if (val == -1)
1131 log_Printf(LogWARN, "usage: %s\n", cmd->syntax);
1132 else if (val)
1133 log_Printf(LogWARN, "%s: Failed %d\n",
1134 mkPrefix(argn+1, argv, prefix, sizeof prefix), val);
1135
1136 return val;
1137 }
1138
1139 int
command_Expand_Interpret(char * buff,int nb,char * argv[MAXARGS],int offset)1140 command_Expand_Interpret(char *buff, int nb, char *argv[MAXARGS], int offset)
1141 {
1142 char buff2[LINE_LEN-offset];
1143
1144 InterpretArg(buff, buff2);
1145 strncpy(buff, buff2, LINE_LEN - offset - 1);
1146 buff[LINE_LEN - offset - 1] = '\0';
1147
1148 return command_Interpret(buff, nb, argv);
1149 }
1150
1151 int
command_Interpret(char * buff,int nb,char * argv[MAXARGS])1152 command_Interpret(char *buff, int nb, char *argv[MAXARGS])
1153 {
1154 char *cp;
1155
1156 if (nb > 0) {
1157 cp = buff + strcspn(buff, "\r\n");
1158 if (cp)
1159 *cp = '\0';
1160 return MakeArgs(buff, argv, MAXARGS, PARSE_REDUCE);
1161 }
1162 return 0;
1163 }
1164
1165 static int
arghidden(char const * const * argv,int n)1166 arghidden(char const *const *argv, int n)
1167 {
1168 /* Is arg n of the given command to be hidden from the log ? */
1169
1170 /* set authkey xxxxx */
1171 /* set key xxxxx */
1172 if (n == 2 && !strncasecmp(argv[0], "se", 2) &&
1173 (!strncasecmp(argv[1], "authk", 5) || !strncasecmp(argv[1], "ke", 2)))
1174 return 1;
1175
1176 /* passwd xxxxx */
1177 if (n == 1 && !strncasecmp(argv[0], "p", 1))
1178 return 1;
1179
1180 /* set server port xxxxx .... */
1181 if (n == 3 && !strncasecmp(argv[0], "se", 2) &&
1182 !strncasecmp(argv[1], "se", 2))
1183 return 1;
1184
1185 return 0;
1186 }
1187
1188 void
command_Run(struct bundle * bundle,int argc,char const * const * argv,struct prompt * prompt,const char * label,struct datalink * cx)1189 command_Run(struct bundle *bundle, int argc, char const *const *argv,
1190 struct prompt *prompt, const char *label, struct datalink *cx)
1191 {
1192 if (argc > 0) {
1193 if (log_IsKept(LogCOMMAND)) {
1194 char buf[LINE_LEN];
1195 int f;
1196 size_t n;
1197
1198 if (label) {
1199 strncpy(buf, label, sizeof buf - 3);
1200 buf[sizeof buf - 3] = '\0';
1201 strcat(buf, ": ");
1202 n = strlen(buf);
1203 } else {
1204 *buf = '\0';
1205 n = 0;
1206 }
1207 buf[sizeof buf - 1] = '\0'; /* In case we run out of room in buf */
1208
1209 for (f = 0; f < argc; f++) {
1210 if (n < sizeof buf - 1 && f)
1211 buf[n++] = ' ';
1212 if (arghidden(argv, f))
1213 strncpy(buf+n, "********", sizeof buf - n - 1);
1214 else
1215 strncpy(buf+n, argv[f], sizeof buf - n - 1);
1216 n += strlen(buf+n);
1217 }
1218 log_Printf(LogCOMMAND, "%s\n", buf);
1219 }
1220 FindExec(bundle, Commands, argc, 0, argv, prompt, cx);
1221 }
1222 }
1223
1224 int
command_Decode(struct bundle * bundle,char * buff,int nb,struct prompt * prompt,const char * label)1225 command_Decode(struct bundle *bundle, char *buff, int nb, struct prompt *prompt,
1226 const char *label)
1227 {
1228 int argc;
1229 char *argv[MAXARGS];
1230
1231 if ((argc = command_Expand_Interpret(buff, nb, argv, 0)) < 0)
1232 return 0;
1233
1234 command_Run(bundle, argc, (char const *const *)argv, prompt, label, NULL);
1235 return 1;
1236 }
1237
1238 static int
ShowCommand(struct cmdargs const * arg)1239 ShowCommand(struct cmdargs const *arg)
1240 {
1241 if (!arg->prompt)
1242 log_Printf(LogWARN, "show: Cannot show without a prompt\n");
1243 else if (arg->argc > arg->argn)
1244 FindExec(arg->bundle, ShowCommands, arg->argc, arg->argn, arg->argv,
1245 arg->prompt, arg->cx);
1246 else
1247 prompt_Printf(arg->prompt, "Use ``show ?'' to get a list.\n");
1248
1249 return 0;
1250 }
1251
1252 static int
TerminalCommand(struct cmdargs const * arg)1253 TerminalCommand(struct cmdargs const *arg)
1254 {
1255 if (!arg->prompt) {
1256 log_Printf(LogWARN, "term: Need a prompt\n");
1257 return 1;
1258 }
1259
1260 if (arg->cx->physical->link.lcp.fsm.state > ST_CLOSED) {
1261 prompt_Printf(arg->prompt, "LCP state is [%s]\n",
1262 State2Nam(arg->cx->physical->link.lcp.fsm.state));
1263 return 1;
1264 }
1265
1266 datalink_Up(arg->cx, 0, 0);
1267 prompt_TtyTermMode(arg->prompt, arg->cx);
1268 return 0;
1269 }
1270
1271 static int
QuitCommand(struct cmdargs const * arg)1272 QuitCommand(struct cmdargs const *arg)
1273 {
1274 if (!arg->prompt || prompt_IsController(arg->prompt) ||
1275 (arg->argc > arg->argn && !strcasecmp(arg->argv[arg->argn], "all") &&
1276 (arg->prompt->auth & LOCAL_AUTH)))
1277 Cleanup();
1278 if (arg->prompt)
1279 prompt_Destroy(arg->prompt, 1);
1280
1281 return 0;
1282 }
1283
1284 static int
OpenCommand(struct cmdargs const * arg)1285 OpenCommand(struct cmdargs const *arg)
1286 {
1287 if (arg->argc == arg->argn)
1288 bundle_Open(arg->bundle, arg->cx ? arg->cx->name : NULL, PHYS_ALL, 1);
1289 else if (arg->argc == arg->argn + 1) {
1290 if (!strcasecmp(arg->argv[arg->argn], "lcp")) {
1291 struct datalink *cx = arg->cx ?
1292 arg->cx : bundle2datalink(arg->bundle, NULL);
1293 if (cx) {
1294 if (cx->physical->link.lcp.fsm.state == ST_OPENED)
1295 fsm_Reopen(&cx->physical->link.lcp.fsm);
1296 else
1297 bundle_Open(arg->bundle, cx->name, PHYS_ALL, 1);
1298 } else
1299 log_Printf(LogWARN, "open lcp: You must specify a link\n");
1300 } else if (!strcasecmp(arg->argv[arg->argn], "ccp")) {
1301 struct fsm *fp;
1302
1303 fp = &command_ChooseLink(arg)->ccp.fsm;
1304 if (fp->link->lcp.fsm.state != ST_OPENED)
1305 log_Printf(LogWARN, "open: LCP must be open before opening CCP\n");
1306 else if (fp->state == ST_OPENED)
1307 fsm_Reopen(fp);
1308 else {
1309 fp->open_mode = 0; /* Not passive any more */
1310 if (fp->state == ST_STOPPED) {
1311 fsm_Down(fp);
1312 fsm_Up(fp);
1313 } else {
1314 fsm_Up(fp);
1315 fsm_Open(fp);
1316 }
1317 }
1318 } else if (!strcasecmp(arg->argv[arg->argn], "ipcp")) {
1319 if (arg->cx)
1320 log_Printf(LogWARN, "open ipcp: You need not specify a link\n");
1321 if (arg->bundle->ncp.ipcp.fsm.state == ST_OPENED)
1322 fsm_Reopen(&arg->bundle->ncp.ipcp.fsm);
1323 else
1324 bundle_Open(arg->bundle, NULL, PHYS_ALL, 1);
1325 } else
1326 return -1;
1327 } else
1328 return -1;
1329
1330 return 0;
1331 }
1332
1333 static int
CloseCommand(struct cmdargs const * arg)1334 CloseCommand(struct cmdargs const *arg)
1335 {
1336 if (arg->argc == arg->argn)
1337 bundle_Close(arg->bundle, arg->cx ? arg->cx->name : NULL, CLOSE_STAYDOWN);
1338 else if (arg->argc == arg->argn + 1) {
1339 if (!strcasecmp(arg->argv[arg->argn], "lcp"))
1340 bundle_Close(arg->bundle, arg->cx ? arg->cx->name : NULL, CLOSE_LCP);
1341 else if (!strcasecmp(arg->argv[arg->argn], "ccp") ||
1342 !strcasecmp(arg->argv[arg->argn], "ccp!")) {
1343 struct fsm *fp;
1344
1345 fp = &command_ChooseLink(arg)->ccp.fsm;
1346 if (fp->state == ST_OPENED) {
1347 fsm_Close(fp);
1348 if (arg->argv[arg->argn][3] == '!')
1349 fp->open_mode = 0; /* Stay ST_CLOSED */
1350 else
1351 fp->open_mode = OPEN_PASSIVE; /* Wait for the peer to start */
1352 }
1353 } else
1354 return -1;
1355 } else
1356 return -1;
1357
1358 return 0;
1359 }
1360
1361 static int
DownCommand(struct cmdargs const * arg)1362 DownCommand(struct cmdargs const *arg)
1363 {
1364 if (arg->argc == arg->argn) {
1365 if (arg->cx)
1366 datalink_Down(arg->cx, CLOSE_STAYDOWN);
1367 else
1368 bundle_Down(arg->bundle, CLOSE_STAYDOWN);
1369 } else if (arg->argc == arg->argn + 1) {
1370 if (!strcasecmp(arg->argv[arg->argn], "lcp")) {
1371 if (arg->cx)
1372 datalink_Down(arg->cx, CLOSE_LCP);
1373 else
1374 bundle_Down(arg->bundle, CLOSE_LCP);
1375 } else if (!strcasecmp(arg->argv[arg->argn], "ccp")) {
1376 struct fsm *fp = arg->cx ? &arg->cx->physical->link.ccp.fsm :
1377 &arg->bundle->ncp.mp.link.ccp.fsm;
1378 fsm2initial(fp);
1379 } else
1380 return -1;
1381 } else
1382 return -1;
1383
1384 return 0;
1385 }
1386
1387 static int
SetModemSpeed(struct cmdargs const * arg)1388 SetModemSpeed(struct cmdargs const *arg)
1389 {
1390 long speed;
1391 char *end;
1392
1393 if (arg->argc > arg->argn && *arg->argv[arg->argn]) {
1394 if (arg->argc > arg->argn+1) {
1395 log_Printf(LogWARN, "SetModemSpeed: Too many arguments\n");
1396 return -1;
1397 }
1398 if (strcasecmp(arg->argv[arg->argn], "sync") == 0) {
1399 physical_SetSync(arg->cx->physical);
1400 return 0;
1401 }
1402 end = NULL;
1403 speed = strtol(arg->argv[arg->argn], &end, 10);
1404 if (*end || speed < 0) {
1405 log_Printf(LogWARN, "SetModemSpeed: Bad argument \"%s\"",
1406 arg->argv[arg->argn]);
1407 return -1;
1408 }
1409 if (physical_SetSpeed(arg->cx->physical, speed))
1410 return 0;
1411 log_Printf(LogWARN, "%s: Invalid speed\n", arg->argv[arg->argn]);
1412 } else
1413 log_Printf(LogWARN, "SetModemSpeed: No speed specified\n");
1414
1415 return -1;
1416 }
1417
1418 static int
SetStoppedTimeout(struct cmdargs const * arg)1419 SetStoppedTimeout(struct cmdargs const *arg)
1420 {
1421 struct link *l = &arg->cx->physical->link;
1422
1423 l->lcp.fsm.StoppedTimer.load = 0;
1424 l->ccp.fsm.StoppedTimer.load = 0;
1425 if (arg->argc <= arg->argn+2) {
1426 if (arg->argc > arg->argn) {
1427 l->lcp.fsm.StoppedTimer.load = atoi(arg->argv[arg->argn]) * SECTICKS;
1428 if (arg->argc > arg->argn+1)
1429 l->ccp.fsm.StoppedTimer.load = atoi(arg->argv[arg->argn+1]) * SECTICKS;
1430 }
1431 return 0;
1432 }
1433 return -1;
1434 }
1435
1436 static int
SetServer(struct cmdargs const * arg)1437 SetServer(struct cmdargs const *arg)
1438 {
1439 int res = -1;
1440
1441 if (arg->argc > arg->argn && arg->argc < arg->argn+4) {
1442 const char *port, *passwd, *mask;
1443 size_t mlen;
1444
1445 /* What's what ? */
1446 port = arg->argv[arg->argn];
1447 if (arg->argc == arg->argn + 2) {
1448 passwd = arg->argv[arg->argn+1];
1449 mask = NULL;
1450 } else if (arg->argc == arg->argn + 3) {
1451 passwd = arg->argv[arg->argn+1];
1452 mask = arg->argv[arg->argn+2];
1453 mlen = strlen(mask);
1454 if (mlen == 0 || mlen > 4 || strspn(mask, "01234567") != mlen ||
1455 (mlen == 4 && *mask != '0')) {
1456 log_Printf(LogWARN, "%s %s: %s: Invalid mask\n",
1457 arg->argv[arg->argn - 2], arg->argv[arg->argn - 1], mask);
1458 return -1;
1459 }
1460 } else if (arg->argc != arg->argn + 1)
1461 return -1;
1462 else if (strcasecmp(port, "none") == 0) {
1463 if (server_Clear(arg->bundle))
1464 log_Printf(LogPHASE, "Disabled server socket\n");
1465 return 0;
1466 } else if (strcasecmp(port, "open") == 0) {
1467 switch (server_Reopen(arg->bundle)) {
1468 case SERVER_OK:
1469 return 0;
1470 case SERVER_FAILED:
1471 log_Printf(LogWARN, "Failed to reopen server port\n");
1472 return 1;
1473 case SERVER_UNSET:
1474 log_Printf(LogWARN, "Cannot reopen unset server socket\n");
1475 return 1;
1476 default:
1477 break;
1478 }
1479 return -1;
1480 } else if (strcasecmp(port, "closed") == 0) {
1481 if (server_Close(arg->bundle))
1482 log_Printf(LogPHASE, "Closed server socket\n");
1483 else
1484 log_Printf(LogWARN, "Server socket not open\n");
1485
1486 return 0;
1487 } else
1488 return -1;
1489
1490 strncpy(server.cfg.passwd, passwd, sizeof server.cfg.passwd - 1);
1491 server.cfg.passwd[sizeof server.cfg.passwd - 1] = '\0';
1492
1493 if (*port == '/') {
1494 mode_t imask;
1495 char *ptr, name[LINE_LEN + 12];
1496
1497 if (mask == NULL)
1498 imask = (mode_t)-1;
1499 else for (imask = mlen = 0; mask[mlen]; mlen++)
1500 imask = (imask * 8) + mask[mlen] - '0';
1501
1502 ptr = strstr(port, "%d");
1503 if (ptr) {
1504 snprintf(name, sizeof name, "%.*s%d%s",
1505 (int)(ptr - port), port, arg->bundle->unit, ptr + 2);
1506 port = name;
1507 }
1508 res = server_LocalOpen(arg->bundle, port, imask);
1509 } else {
1510 int iport, add = 0;
1511
1512 if (mask != NULL)
1513 return -1;
1514
1515 if (*port == '+') {
1516 port++;
1517 add = 1;
1518 }
1519 if (strspn(port, "0123456789") != strlen(port)) {
1520 struct servent *s;
1521
1522 if ((s = getservbyname(port, "tcp")) == NULL) {
1523 iport = 0;
1524 log_Printf(LogWARN, "%s: Invalid port or service\n", port);
1525 } else
1526 iport = ntohs(s->s_port);
1527 } else
1528 iport = atoi(port);
1529
1530 if (iport) {
1531 if (add)
1532 iport += arg->bundle->unit;
1533 res = server_TcpOpen(arg->bundle, iport);
1534 } else
1535 res = -1;
1536 }
1537 }
1538
1539 return res;
1540 }
1541
1542 static int
SetEscape(struct cmdargs const * arg)1543 SetEscape(struct cmdargs const *arg)
1544 {
1545 int code;
1546 int argc = arg->argc - arg->argn;
1547 char const *const *argv = arg->argv + arg->argn;
1548
1549 for (code = 0; code < 33; code++)
1550 arg->cx->physical->async.cfg.EscMap[code] = 0;
1551
1552 while (argc-- > 0) {
1553 sscanf(*argv++, "%x", &code);
1554 code &= 0xff;
1555 arg->cx->physical->async.cfg.EscMap[code >> 3] |= (1 << (code & 7));
1556 arg->cx->physical->async.cfg.EscMap[32] = 1;
1557 }
1558 return 0;
1559 }
1560
1561 static int
SetInterfaceAddr(struct cmdargs const * arg)1562 SetInterfaceAddr(struct cmdargs const *arg)
1563 {
1564 struct ncp *ncp = &arg->bundle->ncp;
1565 struct ncpaddr ncpaddr;
1566 const char *hisaddr;
1567
1568 if (arg->argc > arg->argn + 4)
1569 return -1;
1570
1571 hisaddr = NULL;
1572 memset(&ncp->ipcp.cfg.my_range, '\0', sizeof ncp->ipcp.cfg.my_range);
1573 memset(&ncp->ipcp.cfg.peer_range, '\0', sizeof ncp->ipcp.cfg.peer_range);
1574 ncp->ipcp.cfg.HaveTriggerAddress = 0;
1575 ncp->ipcp.cfg.netmask.s_addr = INADDR_ANY;
1576 iplist_reset(&ncp->ipcp.cfg.peer_list);
1577
1578 if (arg->argc > arg->argn) {
1579 if (!ncprange_aton(&ncp->ipcp.cfg.my_range, ncp, arg->argv[arg->argn]))
1580 return 1;
1581 if (arg->argc > arg->argn+1) {
1582 hisaddr = arg->argv[arg->argn+1];
1583 if (arg->argc > arg->argn+2) {
1584 ncp->ipcp.ifmask = ncp->ipcp.cfg.netmask =
1585 GetIpAddr(arg->argv[arg->argn+2]);
1586 if (arg->argc > arg->argn+3) {
1587 ncp->ipcp.cfg.TriggerAddress = GetIpAddr(arg->argv[arg->argn+3]);
1588 ncp->ipcp.cfg.HaveTriggerAddress = 1;
1589 }
1590 }
1591 }
1592 }
1593
1594 /* 0.0.0.0 means any address (0 bits) */
1595 ncprange_getaddr(&ncp->ipcp.cfg.my_range, &ncpaddr);
1596 ncpaddr_getip4(&ncpaddr, &ncp->ipcp.my_ip);
1597 if (ncp->ipcp.my_ip.s_addr == INADDR_ANY)
1598 ncprange_setwidth(&ncp->ipcp.cfg.my_range, 0);
1599 bundle_AdjustFilters(arg->bundle, &ncpaddr, NULL);
1600
1601 if (hisaddr && !ipcp_UseHisaddr(arg->bundle, hisaddr,
1602 arg->bundle->phys_type.all & PHYS_AUTO))
1603 return 4;
1604
1605 return 0;
1606 }
1607
1608 static int
SetRetry(int argc,char const * const * argv,u_int * timeout,u_int * maxreq,u_int * maxtrm,int def)1609 SetRetry(int argc, char const *const *argv, u_int *timeout, u_int *maxreq,
1610 u_int *maxtrm, int def)
1611 {
1612 if (argc == 0) {
1613 *timeout = DEF_FSMRETRY;
1614 *maxreq = def;
1615 if (maxtrm != NULL)
1616 *maxtrm = def;
1617 } else {
1618 long l = atol(argv[0]);
1619
1620 if (l < MIN_FSMRETRY) {
1621 log_Printf(LogWARN, "%ld: Invalid FSM retry period - min %d\n",
1622 l, MIN_FSMRETRY);
1623 return 1;
1624 } else
1625 *timeout = l;
1626
1627 if (argc > 1) {
1628 l = atol(argv[1]);
1629 if (l < 1) {
1630 log_Printf(LogWARN, "%ld: Invalid FSM REQ tries - changed to 1\n", l);
1631 l = 1;
1632 }
1633 *maxreq = l;
1634
1635 if (argc > 2 && maxtrm != NULL) {
1636 l = atol(argv[2]);
1637 if (l < 1) {
1638 log_Printf(LogWARN, "%ld: Invalid FSM TRM tries - changed to 1\n", l);
1639 l = 1;
1640 }
1641 *maxtrm = l;
1642 }
1643 }
1644 }
1645
1646 return 0;
1647 }
1648
1649 static int
SetVariable(struct cmdargs const * arg)1650 SetVariable(struct cmdargs const *arg)
1651 {
1652 long long_val, param = (long)arg->cmd->args;
1653 int mode, dummyint, f, first, res;
1654 u_short *change;
1655 const char *argp;
1656 struct datalink *cx = arg->cx; /* LOCAL_CX uses this */
1657 struct link *l = command_ChooseLink(arg); /* LOCAL_CX_OPT uses this */
1658 struct in_addr *ipaddr;
1659 struct ncpaddr ncpaddr[2];
1660
1661 if (arg->argc > arg->argn)
1662 argp = arg->argv[arg->argn];
1663 else
1664 argp = "";
1665
1666 res = 0;
1667
1668 if ((arg->cmd->lauth & LOCAL_CX) && !cx) {
1669 log_Printf(LogWARN, "set %s: No context (use the `link' command)\n",
1670 arg->cmd->name);
1671 return 1;
1672 } else if (cx && !(arg->cmd->lauth & (LOCAL_CX|LOCAL_CX_OPT))) {
1673 log_Printf(LogWARN, "set %s: Redundant context (%s) ignored\n",
1674 arg->cmd->name, cx->name);
1675 cx = NULL;
1676 }
1677
1678 switch (param) {
1679 case VAR_AUTHKEY:
1680 strncpy(arg->bundle->cfg.auth.key, argp,
1681 sizeof arg->bundle->cfg.auth.key - 1);
1682 arg->bundle->cfg.auth.key[sizeof arg->bundle->cfg.auth.key - 1] = '\0';
1683 break;
1684
1685 case VAR_AUTHNAME:
1686 switch (bundle_Phase(arg->bundle)) {
1687 default:
1688 log_Printf(LogWARN, "Altering authname while at phase %s\n",
1689 bundle_PhaseName(arg->bundle));
1690 /* drop through */
1691 case PHASE_DEAD:
1692 case PHASE_ESTABLISH:
1693 strncpy(arg->bundle->cfg.auth.name, argp,
1694 sizeof arg->bundle->cfg.auth.name - 1);
1695 arg->bundle->cfg.auth.name[sizeof arg->bundle->cfg.auth.name-1] = '\0';
1696 break;
1697 }
1698 break;
1699
1700 case VAR_AUTOLOAD:
1701 if (arg->argc == arg->argn + 3) {
1702 int v1, v2, v3;
1703 char *end;
1704
1705 v1 = strtol(arg->argv[arg->argn], &end, 0);
1706 if (v1 < 0 || *end) {
1707 log_Printf(LogWARN, "autoload: %s: Invalid min percentage\n",
1708 arg->argv[arg->argn]);
1709 res = 1;
1710 break;
1711 }
1712
1713 v2 = strtol(arg->argv[arg->argn + 1], &end, 0);
1714 if (v2 < 0 || *end) {
1715 log_Printf(LogWARN, "autoload: %s: Invalid max percentage\n",
1716 arg->argv[arg->argn + 1]);
1717 res = 1;
1718 break;
1719 }
1720 if (v2 < v1) {
1721 v3 = v1;
1722 v1 = v2;
1723 v2 = v3;
1724 }
1725
1726 v3 = strtol(arg->argv[arg->argn + 2], &end, 0);
1727 if (v3 <= 0 || *end) {
1728 log_Printf(LogWARN, "autoload: %s: Invalid throughput period\n",
1729 arg->argv[arg->argn + 2]);
1730 res = 1;
1731 break;
1732 }
1733
1734 arg->bundle->ncp.mp.cfg.autoload.min = v1;
1735 arg->bundle->ncp.mp.cfg.autoload.max = v2;
1736 arg->bundle->ncp.mp.cfg.autoload.period = v3;
1737 mp_RestartAutoloadTimer(&arg->bundle->ncp.mp);
1738 } else {
1739 log_Printf(LogWARN, "Set autoload requires three arguments\n");
1740 res = 1;
1741 }
1742 break;
1743
1744 case VAR_DIAL:
1745 strncpy(cx->cfg.script.dial, argp, sizeof cx->cfg.script.dial - 1);
1746 cx->cfg.script.dial[sizeof cx->cfg.script.dial - 1] = '\0';
1747 break;
1748
1749 case VAR_LOGIN:
1750 strncpy(cx->cfg.script.login, argp, sizeof cx->cfg.script.login - 1);
1751 cx->cfg.script.login[sizeof cx->cfg.script.login - 1] = '\0';
1752 break;
1753
1754 case VAR_WINSIZE:
1755 if (arg->argc > arg->argn) {
1756 l->ccp.cfg.deflate.out.winsize = atoi(arg->argv[arg->argn]);
1757 if (l->ccp.cfg.deflate.out.winsize < 8 ||
1758 l->ccp.cfg.deflate.out.winsize > 15) {
1759 log_Printf(LogWARN, "%d: Invalid outgoing window size\n",
1760 l->ccp.cfg.deflate.out.winsize);
1761 l->ccp.cfg.deflate.out.winsize = 15;
1762 }
1763 if (arg->argc > arg->argn+1) {
1764 l->ccp.cfg.deflate.in.winsize = atoi(arg->argv[arg->argn+1]);
1765 if (l->ccp.cfg.deflate.in.winsize < 8 ||
1766 l->ccp.cfg.deflate.in.winsize > 15) {
1767 log_Printf(LogWARN, "%d: Invalid incoming window size\n",
1768 l->ccp.cfg.deflate.in.winsize);
1769 l->ccp.cfg.deflate.in.winsize = 15;
1770 }
1771 } else
1772 l->ccp.cfg.deflate.in.winsize = 0;
1773 } else {
1774 log_Printf(LogWARN, "No window size specified\n");
1775 res = 1;
1776 }
1777 break;
1778
1779 #ifndef NODES
1780 case VAR_MPPE:
1781 if (arg->argc > arg->argn + 2) {
1782 res = -1;
1783 break;
1784 }
1785
1786 if (arg->argc == arg->argn) {
1787 l->ccp.cfg.mppe.keybits = 0;
1788 l->ccp.cfg.mppe.state = MPPE_ANYSTATE;
1789 l->ccp.cfg.mppe.required = 0;
1790 break;
1791 }
1792
1793 if (!strcmp(argp, "*"))
1794 long_val = 0;
1795 else {
1796 long_val = atol(argp);
1797 if (long_val != 40 && long_val != 56 && long_val != 128) {
1798 log_Printf(LogWARN, "%s: Invalid bits value\n", argp);
1799 res = -1;
1800 break;
1801 }
1802 }
1803
1804 if (arg->argc == arg->argn + 2) {
1805 if (!strcmp(arg->argv[arg->argn + 1], "*"))
1806 l->ccp.cfg.mppe.state = MPPE_ANYSTATE;
1807 else if (!strcasecmp(arg->argv[arg->argn + 1], "stateless"))
1808 l->ccp.cfg.mppe.state = MPPE_STATELESS;
1809 else if (!strcasecmp(arg->argv[arg->argn + 1], "stateful"))
1810 l->ccp.cfg.mppe.state = MPPE_STATEFUL;
1811 else {
1812 log_Printf(LogWARN, "%s: Invalid state value\n",
1813 arg->argv[arg->argn + 1]);
1814 res = -1;
1815 break;
1816 }
1817 } else
1818 l->ccp.cfg.mppe.state = MPPE_ANYSTATE;
1819 l->ccp.cfg.mppe.keybits = long_val;
1820 l->ccp.cfg.mppe.required = 1;
1821 break;
1822 #endif
1823
1824 case VAR_DEVICE:
1825 physical_SetDeviceList(cx->physical, arg->argc - arg->argn,
1826 arg->argv + arg->argn);
1827 break;
1828
1829 case VAR_ACCMAP:
1830 if (arg->argc > arg->argn) {
1831 u_long ulong_val;
1832 sscanf(argp, "%lx", &ulong_val);
1833 cx->physical->link.lcp.cfg.accmap = (u_int32_t)ulong_val;
1834 } else {
1835 log_Printf(LogWARN, "No accmap specified\n");
1836 res = 1;
1837 }
1838 break;
1839
1840 case VAR_MODE:
1841 mode = Nam2mode(argp);
1842 if (mode == PHYS_NONE || mode == PHYS_ALL) {
1843 log_Printf(LogWARN, "%s: Invalid mode\n", argp);
1844 res = -1;
1845 break;
1846 }
1847 bundle_SetMode(arg->bundle, cx, mode);
1848 break;
1849
1850 case VAR_MRRU:
1851 switch (bundle_Phase(arg->bundle)) {
1852 case PHASE_DEAD:
1853 break;
1854 case PHASE_ESTABLISH:
1855 /* Make sure none of our links are DATALINK_LCP or greater */
1856 if (bundle_HighestState(arg->bundle) >= DATALINK_LCP) {
1857 log_Printf(LogWARN, "mrru: Only changeable before LCP negotiations\n");
1858 res = 1;
1859 break;
1860 }
1861 break;
1862 default:
1863 log_Printf(LogWARN, "mrru: Only changeable at phase DEAD/ESTABLISH\n");
1864 res = 1;
1865 break;
1866 }
1867 if (res != 0)
1868 break;
1869 long_val = atol(argp);
1870 if (long_val && long_val < MIN_MRU) {
1871 log_Printf(LogWARN, "MRRU %ld: too small - min %d\n", long_val, MIN_MRU);
1872 res = 1;
1873 break;
1874 } else if (long_val > MAX_MRU) {
1875 log_Printf(LogWARN, "MRRU %ld: too big - max %d\n", long_val, MAX_MRU);
1876 res = 1;
1877 break;
1878 } else
1879 arg->bundle->ncp.mp.cfg.mrru = long_val;
1880 break;
1881
1882 case VAR_MRU:
1883 long_val = 0; /* silence gcc */
1884 change = NULL; /* silence gcc */
1885 switch(arg->argc - arg->argn) {
1886 case 1:
1887 if (argp[strspn(argp, "0123456789")] != '\0') {
1888 res = -1;
1889 break;
1890 }
1891 /*FALLTHRU*/
1892 case 0:
1893 long_val = atol(argp);
1894 change = &l->lcp.cfg.mru;
1895 if (long_val > l->lcp.cfg.max_mru) {
1896 log_Printf(LogWARN, "MRU %ld: too large - max set to %d\n", long_val,
1897 l->lcp.cfg.max_mru);
1898 res = 1;
1899 break;
1900 }
1901 break;
1902 case 2:
1903 if (strcasecmp(argp, "max") && strcasecmp(argp, "maximum")) {
1904 res = -1;
1905 break;
1906 }
1907 long_val = atol(arg->argv[arg->argn + 1]);
1908 change = &l->lcp.cfg.max_mru;
1909 if (long_val > MAX_MRU) {
1910 log_Printf(LogWARN, "MRU %ld: too large - maximum is %d\n", long_val,
1911 MAX_MRU);
1912 res = 1;
1913 break;
1914 }
1915 break;
1916 default:
1917 res = -1;
1918 break;
1919 }
1920 if (res != 0)
1921 break;
1922
1923 if (long_val == 0)
1924 *change = 0;
1925 else if (long_val < MIN_MRU) {
1926 log_Printf(LogWARN, "MRU %ld: too small - min %d\n", long_val, MIN_MRU);
1927 res = 1;
1928 break;
1929 } else if (long_val > MAX_MRU) {
1930 log_Printf(LogWARN, "MRU %ld: too big - max %d\n", long_val, MAX_MRU);
1931 res = 1;
1932 break;
1933 } else
1934 *change = long_val;
1935 if (l->lcp.cfg.mru > *change)
1936 l->lcp.cfg.mru = *change;
1937 break;
1938
1939 case VAR_MTU:
1940 long_val = 0; /* silence gcc */
1941 change = NULL; /* silence gcc */
1942 switch(arg->argc - arg->argn) {
1943 case 1:
1944 if (argp[strspn(argp, "0123456789")] != '\0') {
1945 res = -1;
1946 break;
1947 }
1948 /*FALLTHRU*/
1949 case 0:
1950 long_val = atol(argp);
1951 change = &l->lcp.cfg.mtu;
1952 if (long_val > l->lcp.cfg.max_mtu) {
1953 log_Printf(LogWARN, "MTU %ld: too large - max set to %d\n", long_val,
1954 l->lcp.cfg.max_mtu);
1955 res = 1;
1956 break;
1957 }
1958 break;
1959 case 2:
1960 if (strcasecmp(argp, "max") && strcasecmp(argp, "maximum")) {
1961 res = -1;
1962 break;
1963 }
1964 long_val = atol(arg->argv[arg->argn + 1]);
1965 change = &l->lcp.cfg.max_mtu;
1966 if (long_val > MAX_MTU) {
1967 log_Printf(LogWARN, "MTU %ld: too large - maximum is %d\n", long_val,
1968 MAX_MTU);
1969 res = 1;
1970 break;
1971 }
1972 break;
1973 default:
1974 res = -1;
1975 break;
1976 }
1977
1978 if (res != 0)
1979 break;
1980
1981 if (long_val && long_val < MIN_MTU) {
1982 log_Printf(LogWARN, "MTU %ld: too small - min %d\n", long_val, MIN_MTU);
1983 res = 1;
1984 break;
1985 } else if (long_val > MAX_MTU) {
1986 log_Printf(LogWARN, "MTU %ld: too big - max %d\n", long_val, MAX_MTU);
1987 res = 1;
1988 break;
1989 } else
1990 *change = long_val;
1991 if (l->lcp.cfg.mtu > *change)
1992 l->lcp.cfg.mtu = *change;
1993 break;
1994
1995 case VAR_OPENMODE:
1996 if (strcasecmp(argp, "active") == 0)
1997 cx->physical->link.lcp.cfg.openmode = arg->argc > arg->argn+1 ?
1998 atoi(arg->argv[arg->argn+1]) : 1;
1999 else if (strcasecmp(argp, "passive") == 0)
2000 cx->physical->link.lcp.cfg.openmode = OPEN_PASSIVE;
2001 else {
2002 log_Printf(LogWARN, "%s: Invalid openmode\n", argp);
2003 res = 1;
2004 }
2005 break;
2006
2007 case VAR_PHONE:
2008 strncpy(cx->cfg.phone.list, argp, sizeof cx->cfg.phone.list - 1);
2009 cx->cfg.phone.list[sizeof cx->cfg.phone.list - 1] = '\0';
2010 cx->phone.alt = cx->phone.next = NULL;
2011 break;
2012
2013 case VAR_HANGUP:
2014 strncpy(cx->cfg.script.hangup, argp, sizeof cx->cfg.script.hangup - 1);
2015 cx->cfg.script.hangup[sizeof cx->cfg.script.hangup - 1] = '\0';
2016 break;
2017
2018 case VAR_IFQUEUE:
2019 long_val = atol(argp);
2020 arg->bundle->cfg.ifqueue = long_val < 0 ? 0 : long_val;
2021 break;
2022
2023 case VAR_LOGOUT:
2024 strncpy(cx->cfg.script.logout, argp, sizeof cx->cfg.script.logout - 1);
2025 cx->cfg.script.logout[sizeof cx->cfg.script.logout - 1] = '\0';
2026 break;
2027
2028 case VAR_IDLETIMEOUT:
2029 if (arg->argc > arg->argn+2) {
2030 log_Printf(LogWARN, "Too many idle timeout values\n");
2031 res = 1;
2032 } else if (arg->argc == arg->argn) {
2033 log_Printf(LogWARN, "Too few idle timeout values\n");
2034 res = 1;
2035 } else {
2036 unsigned long timeout, min;
2037
2038 timeout = strtoul(argp, NULL, 10);
2039 min = arg->bundle->cfg.idle.min_timeout;
2040 if (arg->argc == arg->argn + 2)
2041 min = strtoul(arg->argv[arg->argn + 1], NULL, 10);
2042 bundle_SetIdleTimer(arg->bundle, timeout, min);
2043 }
2044 break;
2045
2046 #ifndef NORADIUS
2047 case VAR_RAD_ALIVE:
2048 if (arg->argc > arg->argn + 2) {
2049 log_Printf(LogWARN, "Too many RADIUS alive interval values\n");
2050 res = 1;
2051 } else if (arg->argc == arg->argn) {
2052 log_Printf(LogWARN, "Too few RADIUS alive interval values\n");
2053 res = 1;
2054 } else {
2055 arg->bundle->radius.alive.interval = atoi(argp);
2056 if (arg->bundle->radius.alive.interval && !*arg->bundle->radius.cfg.file) {
2057 log_Printf(LogWARN, "rad_alive requires radius to be configured\n");
2058 res = 1;
2059 } else if (arg->bundle->ncp.ipcp.fsm.state == ST_OPENED) {
2060 if (arg->bundle->radius.alive.interval)
2061 radius_StartTimer(arg->bundle);
2062 else
2063 radius_StopTimer(&arg->bundle->radius);
2064 }
2065 }
2066 break;
2067 #endif
2068
2069 case VAR_LQRPERIOD:
2070 long_val = atol(argp);
2071 if (long_val < MIN_LQRPERIOD) {
2072 log_Printf(LogWARN, "%ld: Invalid lqr period - min %d\n",
2073 long_val, MIN_LQRPERIOD);
2074 res = 1;
2075 } else
2076 l->lcp.cfg.lqrperiod = long_val;
2077 break;
2078
2079 case VAR_LCPRETRY:
2080 res = SetRetry(arg->argc - arg->argn, arg->argv + arg->argn,
2081 &cx->physical->link.lcp.cfg.fsm.timeout,
2082 &cx->physical->link.lcp.cfg.fsm.maxreq,
2083 &cx->physical->link.lcp.cfg.fsm.maxtrm, DEF_FSMTRIES);
2084 break;
2085
2086 case VAR_CHAPRETRY:
2087 res = SetRetry(arg->argc - arg->argn, arg->argv + arg->argn,
2088 &cx->chap.auth.cfg.fsm.timeout,
2089 &cx->chap.auth.cfg.fsm.maxreq, NULL, DEF_FSMAUTHTRIES);
2090 break;
2091
2092 case VAR_PAPRETRY:
2093 res = SetRetry(arg->argc - arg->argn, arg->argv + arg->argn,
2094 &cx->pap.cfg.fsm.timeout, &cx->pap.cfg.fsm.maxreq,
2095 NULL, DEF_FSMAUTHTRIES);
2096 break;
2097
2098 case VAR_CCPRETRY:
2099 res = SetRetry(arg->argc - arg->argn, arg->argv + arg->argn,
2100 &l->ccp.cfg.fsm.timeout, &l->ccp.cfg.fsm.maxreq,
2101 &l->ccp.cfg.fsm.maxtrm, DEF_FSMTRIES);
2102 break;
2103
2104 case VAR_IPCPRETRY:
2105 res = SetRetry(arg->argc - arg->argn, arg->argv + arg->argn,
2106 &arg->bundle->ncp.ipcp.cfg.fsm.timeout,
2107 &arg->bundle->ncp.ipcp.cfg.fsm.maxreq,
2108 &arg->bundle->ncp.ipcp.cfg.fsm.maxtrm, DEF_FSMTRIES);
2109 break;
2110
2111 #ifndef NOINET6
2112 case VAR_IPV6CPRETRY:
2113 res = SetRetry(arg->argc - arg->argn, arg->argv + arg->argn,
2114 &arg->bundle->ncp.ipv6cp.cfg.fsm.timeout,
2115 &arg->bundle->ncp.ipv6cp.cfg.fsm.maxreq,
2116 &arg->bundle->ncp.ipv6cp.cfg.fsm.maxtrm, DEF_FSMTRIES);
2117 break;
2118 #endif
2119
2120 case VAR_NBNS:
2121 case VAR_DNS:
2122 if (param == VAR_DNS) {
2123 ipaddr = arg->bundle->ncp.ipcp.cfg.ns.dns;
2124 ipaddr[0].s_addr = ipaddr[1].s_addr = INADDR_NONE;
2125 } else {
2126 ipaddr = arg->bundle->ncp.ipcp.cfg.ns.nbns;
2127 ipaddr[0].s_addr = ipaddr[1].s_addr = INADDR_ANY;
2128 }
2129
2130 if (arg->argc > arg->argn) {
2131 ncpaddr_aton(ncpaddr, &arg->bundle->ncp, arg->argv[arg->argn]);
2132 if (!ncpaddr_getip4(ncpaddr, ipaddr))
2133 return -1;
2134 if (arg->argc > arg->argn+1) {
2135 ncpaddr_aton(ncpaddr + 1, &arg->bundle->ncp, arg->argv[arg->argn + 1]);
2136 if (!ncpaddr_getip4(ncpaddr + 1, ipaddr + 1))
2137 return -1;
2138 }
2139
2140 if (ipaddr[0].s_addr == INADDR_ANY) {
2141 ipaddr[0] = ipaddr[1];
2142 ipaddr[1].s_addr = INADDR_ANY;
2143 }
2144 if (ipaddr[0].s_addr == INADDR_NONE) {
2145 ipaddr[0] = ipaddr[1];
2146 ipaddr[1].s_addr = INADDR_NONE;
2147 }
2148 }
2149 break;
2150
2151 case VAR_CALLBACK:
2152 cx->cfg.callback.opmask = 0;
2153 for (dummyint = arg->argn; dummyint < arg->argc; dummyint++) {
2154 if (!strcasecmp(arg->argv[dummyint], "auth"))
2155 cx->cfg.callback.opmask |= CALLBACK_BIT(CALLBACK_AUTH);
2156 else if (!strcasecmp(arg->argv[dummyint], "cbcp"))
2157 cx->cfg.callback.opmask |= CALLBACK_BIT(CALLBACK_CBCP);
2158 else if (!strcasecmp(arg->argv[dummyint], "e.164")) {
2159 if (dummyint == arg->argc - 1)
2160 log_Printf(LogWARN, "No E.164 arg (E.164 ignored) !\n");
2161 else {
2162 cx->cfg.callback.opmask |= CALLBACK_BIT(CALLBACK_E164);
2163 strncpy(cx->cfg.callback.msg, arg->argv[++dummyint],
2164 sizeof cx->cfg.callback.msg - 1);
2165 cx->cfg.callback.msg[sizeof cx->cfg.callback.msg - 1] = '\0';
2166 }
2167 } else if (!strcasecmp(arg->argv[dummyint], "none"))
2168 cx->cfg.callback.opmask |= CALLBACK_BIT(CALLBACK_NONE);
2169 else {
2170 res = -1;
2171 break;
2172 }
2173 }
2174 if (cx->cfg.callback.opmask == CALLBACK_BIT(CALLBACK_NONE))
2175 cx->cfg.callback.opmask = 0;
2176 break;
2177
2178 case VAR_CBCP:
2179 cx->cfg.cbcp.delay = 0;
2180 *cx->cfg.cbcp.phone = '\0';
2181 cx->cfg.cbcp.fsmretry = DEF_FSMRETRY;
2182 if (arg->argc > arg->argn) {
2183 strncpy(cx->cfg.cbcp.phone, arg->argv[arg->argn],
2184 sizeof cx->cfg.cbcp.phone - 1);
2185 cx->cfg.cbcp.phone[sizeof cx->cfg.cbcp.phone - 1] = '\0';
2186 if (arg->argc > arg->argn + 1) {
2187 cx->cfg.cbcp.delay = atoi(arg->argv[arg->argn + 1]);
2188 if (arg->argc > arg->argn + 2) {
2189 long_val = atol(arg->argv[arg->argn + 2]);
2190 if (long_val < MIN_FSMRETRY)
2191 log_Printf(LogWARN, "%ld: Invalid CBCP FSM retry period - min %d\n",
2192 long_val, MIN_FSMRETRY);
2193 else
2194 cx->cfg.cbcp.fsmretry = long_val;
2195 }
2196 }
2197 }
2198 break;
2199
2200 case VAR_CHOKED:
2201 arg->bundle->cfg.choked.timeout = atoi(argp);
2202 if (arg->bundle->cfg.choked.timeout <= 0)
2203 arg->bundle->cfg.choked.timeout = CHOKED_TIMEOUT;
2204 break;
2205
2206 case VAR_SENDPIPE:
2207 long_val = atol(argp);
2208 arg->bundle->ncp.cfg.sendpipe = long_val;
2209 break;
2210
2211 case VAR_RECVPIPE:
2212 long_val = atol(argp);
2213 arg->bundle->ncp.cfg.recvpipe = long_val;
2214 break;
2215
2216 #ifndef NORADIUS
2217 case VAR_RADIUS:
2218 if (!*argp)
2219 *arg->bundle->radius.cfg.file = '\0';
2220 else if (access(argp, R_OK)) {
2221 log_Printf(LogWARN, "%s: %s\n", argp, strerror(errno));
2222 res = 1;
2223 break;
2224 } else {
2225 strncpy(arg->bundle->radius.cfg.file, argp,
2226 sizeof arg->bundle->radius.cfg.file - 1);
2227 arg->bundle->radius.cfg.file
2228 [sizeof arg->bundle->radius.cfg.file - 1] = '\0';
2229 }
2230 break;
2231 #endif
2232
2233 case VAR_CD:
2234 if (*argp) {
2235 if (strcasecmp(argp, "off")) {
2236 long_val = atol(argp);
2237 if (long_val < 0)
2238 long_val = 0;
2239 cx->physical->cfg.cd.delay = long_val;
2240 cx->physical->cfg.cd.necessity = argp[strlen(argp)-1] == '!' ?
2241 CD_REQUIRED : CD_VARIABLE;
2242 } else
2243 cx->physical->cfg.cd.necessity = CD_NOTREQUIRED;
2244 } else {
2245 cx->physical->cfg.cd.delay = 0;
2246 cx->physical->cfg.cd.necessity = CD_DEFAULT;
2247 }
2248 break;
2249
2250 case VAR_PARITY:
2251 if (arg->argc == arg->argn + 1)
2252 res = physical_SetParity(arg->cx->physical, argp);
2253 else {
2254 log_Printf(LogWARN, "Parity value must be odd, even or none\n");
2255 res = 1;
2256 }
2257 break;
2258
2259 case VAR_CRTSCTS:
2260 if (strcasecmp(argp, "on") == 0)
2261 physical_SetRtsCts(arg->cx->physical, 1);
2262 else if (strcasecmp(argp, "off") == 0)
2263 physical_SetRtsCts(arg->cx->physical, 0);
2264 else {
2265 log_Printf(LogWARN, "RTS/CTS value must be on or off\n");
2266 res = 1;
2267 }
2268 break;
2269
2270 case VAR_URGENT:
2271 if (arg->argn == arg->argc) {
2272 ncp_SetUrgentTOS(&arg->bundle->ncp);
2273 ncp_ClearUrgentTcpPorts(&arg->bundle->ncp);
2274 ncp_ClearUrgentUdpPorts(&arg->bundle->ncp);
2275 } else if (!strcasecmp(arg->argv[arg->argn], "udp")) {
2276 ncp_SetUrgentTOS(&arg->bundle->ncp);
2277 if (arg->argn == arg->argc - 1)
2278 ncp_ClearUrgentUdpPorts(&arg->bundle->ncp);
2279 else for (f = arg->argn + 1; f < arg->argc; f++)
2280 if (*arg->argv[f] == '+')
2281 ncp_AddUrgentUdpPort(&arg->bundle->ncp, atoi(arg->argv[f] + 1));
2282 else if (*arg->argv[f] == '-')
2283 ncp_RemoveUrgentUdpPort(&arg->bundle->ncp, atoi(arg->argv[f] + 1));
2284 else {
2285 if (f == arg->argn)
2286 ncp_ClearUrgentUdpPorts(&arg->bundle->ncp);
2287 ncp_AddUrgentUdpPort(&arg->bundle->ncp, atoi(arg->argv[f]));
2288 }
2289 } else if (arg->argn == arg->argc - 1 &&
2290 !strcasecmp(arg->argv[arg->argn], "none")) {
2291 ncp_ClearUrgentTcpPorts(&arg->bundle->ncp);
2292 ncp_ClearUrgentUdpPorts(&arg->bundle->ncp);
2293 ncp_ClearUrgentTOS(&arg->bundle->ncp);
2294 } else if (!strcasecmp(arg->argv[arg->argn], "length")) {
2295 if (arg->argn == arg->argc - 1)
2296 ncp_SetUrgentTcpLen(&arg->bundle->ncp, 0);
2297 else
2298 ncp_SetUrgentTcpLen(&arg->bundle->ncp, atoi(arg->argv[arg->argn + 1]));
2299 } else {
2300 ncp_SetUrgentTOS(&arg->bundle->ncp);
2301 first = arg->argn;
2302 if (!strcasecmp(arg->argv[first], "tcp") && ++first == arg->argc)
2303 ncp_ClearUrgentTcpPorts(&arg->bundle->ncp);
2304
2305 for (f = first; f < arg->argc; f++)
2306 if (*arg->argv[f] == '+')
2307 ncp_AddUrgentTcpPort(&arg->bundle->ncp, atoi(arg->argv[f] + 1));
2308 else if (*arg->argv[f] == '-')
2309 ncp_RemoveUrgentTcpPort(&arg->bundle->ncp, atoi(arg->argv[f] + 1));
2310 else {
2311 if (f == first)
2312 ncp_ClearUrgentTcpPorts(&arg->bundle->ncp);
2313 ncp_AddUrgentTcpPort(&arg->bundle->ncp, atoi(arg->argv[f]));
2314 }
2315 }
2316 break;
2317
2318 case VAR_PPPOE:
2319 if (strcasecmp(argp, "3Com") == 0)
2320 physical_SetPPPoEnonstandard(arg->cx->physical, 1);
2321 else if (strcasecmp(argp, "standard") == 0)
2322 physical_SetPPPoEnonstandard(arg->cx->physical, 0);
2323 else {
2324 log_Printf(LogWARN, "PPPoE standard value must be \"standard\" or \"3Com\"\n");
2325 res = 1;
2326 }
2327 break;
2328
2329 #ifndef NORADIUS
2330 case VAR_PORT_ID:
2331 if (strcasecmp(argp, "default") == 0)
2332 arg->bundle->radius.port_id_type = RPI_DEFAULT;
2333 else if (strcasecmp(argp, "pid") == 0)
2334 arg->bundle->radius.port_id_type = RPI_PID;
2335 else if (strcasecmp(argp, "ifnum") == 0)
2336 arg->bundle->radius.port_id_type = RPI_IFNUM;
2337 else if (strcasecmp(argp, "tunnum") == 0)
2338 arg->bundle->radius.port_id_type = RPI_TUNNUM;
2339 else {
2340 log_Printf(LogWARN,
2341 "RADIUS port id must be one of \"default\", \"pid\", \"ifnum\" or \"tunnum\"\n");
2342 res = 1;
2343 }
2344
2345 if (arg->bundle->radius.port_id_type && !*arg->bundle->radius.cfg.file) {
2346 log_Printf(LogWARN, "rad_port_id requires radius to be configured\n");
2347 res = 1;
2348 }
2349
2350 break;
2351 #endif
2352 }
2353
2354 return res;
2355 }
2356
2357 static struct cmdtab const SetCommands[] = {
2358 {"accmap", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX,
2359 "accmap value", "set accmap hex-value", (const void *)VAR_ACCMAP},
2360 {"authkey", "key", SetVariable, LOCAL_AUTH,
2361 "authentication key", "set authkey|key key", (const void *)VAR_AUTHKEY},
2362 {"authname", NULL, SetVariable, LOCAL_AUTH,
2363 "authentication name", "set authname name", (const void *)VAR_AUTHNAME},
2364 {"autoload", NULL, SetVariable, LOCAL_AUTH,
2365 "auto link [de]activation", "set autoload maxtime maxload mintime minload",
2366 (const void *)VAR_AUTOLOAD},
2367 {"bandwidth", NULL, mp_SetDatalinkBandwidth, LOCAL_AUTH | LOCAL_CX,
2368 "datalink bandwidth", "set bandwidth value", NULL},
2369 {"callback", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX,
2370 "callback control", "set callback [none|auth|cbcp|"
2371 "E.164 *|number[,number]...]...", (const void *)VAR_CALLBACK},
2372 {"cbcp", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX,
2373 "CBCP control", "set cbcp [*|phone[,phone...] [delay [timeout]]]",
2374 (const void *)VAR_CBCP},
2375 {"ccpretry", "ccpretries", SetVariable, LOCAL_AUTH | LOCAL_CX_OPT,
2376 "CCP retries", "set ccpretry value [attempts]", (const void *)VAR_CCPRETRY},
2377 {"cd", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, "Carrier delay requirement",
2378 "set cd value[!]", (const void *)VAR_CD},
2379 {"chapretry", "chapretries", SetVariable, LOCAL_AUTH | LOCAL_CX,
2380 "CHAP retries", "set chapretry value [attempts]",
2381 (const void *)VAR_CHAPRETRY},
2382 {"choked", NULL, SetVariable, LOCAL_AUTH,
2383 "choked timeout", "set choked [secs]", (const void *)VAR_CHOKED},
2384 {"ctsrts", "crtscts", SetVariable, LOCAL_AUTH | LOCAL_CX,
2385 "Use hardware flow control", "set ctsrts [on|off]",
2386 (const char *)VAR_CRTSCTS},
2387 {"deflate", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX_OPT,
2388 "deflate window sizes", "set deflate out-winsize in-winsize",
2389 (const void *) VAR_WINSIZE},
2390 #ifndef NODES
2391 {"mppe", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX_OPT,
2392 "MPPE key size and state", "set mppe [40|56|128|* [stateful|stateless|*]]",
2393 (const void *) VAR_MPPE},
2394 #endif
2395 {"device", "line", SetVariable, LOCAL_AUTH | LOCAL_CX,
2396 "physical device name", "set device|line device-name[,device-name]",
2397 (const void *) VAR_DEVICE},
2398 {"dial", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX,
2399 "dialing script", "set dial chat-script", (const void *) VAR_DIAL},
2400 {"dns", NULL, SetVariable, LOCAL_AUTH, "Domain Name Server",
2401 "set dns pri-addr [sec-addr]", (const void *)VAR_DNS},
2402 {"enddisc", NULL, mp_SetEnddisc, LOCAL_AUTH,
2403 "Endpoint Discriminator", "set enddisc [IP|magic|label|psn value]", NULL},
2404 {"escape", NULL, SetEscape, LOCAL_AUTH | LOCAL_CX,
2405 "escape characters", "set escape hex-digit ...", NULL},
2406 {"filter", NULL, filter_Set, LOCAL_AUTH,
2407 "packet filters", "set filter alive|dial|in|out rule-no permit|deny "
2408 "[src_addr[/width]] [dst_addr[/width]] [proto "
2409 "[src [lt|eq|gt port]] [dst [lt|eq|gt port]] [estab] [syn] [finrst]]", NULL},
2410 {"hangup", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX,
2411 "hangup script", "set hangup chat-script", (const void *) VAR_HANGUP},
2412 {"ifaddr", NULL, SetInterfaceAddr, LOCAL_AUTH, "destination address",
2413 "set ifaddr [src-addr [dst-addr [netmask [trg-addr]]]]", NULL},
2414 {"ifqueue", NULL, SetVariable, LOCAL_AUTH, "interface queue",
2415 "set ifqueue packets", (const void *)VAR_IFQUEUE},
2416 {"ipcpretry", "ipcpretries", SetVariable, LOCAL_AUTH, "IPCP retries",
2417 "set ipcpretry value [attempts]", (const void *)VAR_IPCPRETRY},
2418 {"ipv6cpretry", "ipv6cpretries", SetVariable, LOCAL_AUTH, "IPV6CP retries",
2419 "set ipv6cpretry value [attempts]", (const void *)VAR_IPV6CPRETRY},
2420 {"lcpretry", "lcpretries", SetVariable, LOCAL_AUTH | LOCAL_CX, "LCP retries",
2421 "set lcpretry value [attempts]", (const void *)VAR_LCPRETRY},
2422 {"log", NULL, log_SetLevel, LOCAL_AUTH, "log level",
2423 "set log [local] [+|-]all|async|cbcp|ccp|chat|command|connect|debug|dns|hdlc|"
2424 "id0|ipcp|lcp|lqm|phase|physical|radius|sync|tcp/ip|timer|tun...", NULL},
2425 {"login", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX,
2426 "login script", "set login chat-script", (const void *) VAR_LOGIN},
2427 {"logout", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX,
2428 "logout script", "set logout chat-script", (const void *) VAR_LOGOUT},
2429 {"lqrperiod", "echoperiod", SetVariable, LOCAL_AUTH | LOCAL_CX_OPT,
2430 "LQR period", "set lqr/echo period value", (const void *)VAR_LQRPERIOD},
2431 {"mode", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, "mode value",
2432 "set mode interactive|auto|ddial|background", (const void *)VAR_MODE},
2433 {"mrru", NULL, SetVariable, LOCAL_AUTH, "MRRU value",
2434 "set mrru value", (const void *)VAR_MRRU},
2435 {"mru", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX,
2436 "MRU value", "set mru [max[imum]] [value]", (const void *)VAR_MRU},
2437 {"mtu", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX,
2438 "interface MTU value", "set mtu [max[imum]] [value]", (const void *)VAR_MTU},
2439 {"nbns", NULL, SetVariable, LOCAL_AUTH, "NetBIOS Name Server",
2440 "set nbns pri-addr [sec-addr]", (const void *)VAR_NBNS},
2441 {"openmode", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, "open mode",
2442 "set openmode active|passive [secs]", (const void *)VAR_OPENMODE},
2443 {"papretry", "papretries", SetVariable, LOCAL_AUTH | LOCAL_CX, "PAP retries",
2444 "set papretry value [attempts]", (const void *)VAR_PAPRETRY},
2445 {"parity", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, "serial parity",
2446 "set parity [odd|even|none]", (const void *)VAR_PARITY},
2447 {"phone", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX, "telephone number(s)",
2448 "set phone phone1[:phone2[...]]", (const void *)VAR_PHONE},
2449 {"proctitle", "title", SetProcTitle, LOCAL_AUTH,
2450 "Process title", "set proctitle [value]", NULL},
2451 #ifndef NORADIUS
2452 {"radius", NULL, SetVariable, LOCAL_AUTH,
2453 "RADIUS Config", "set radius cfgfile", (const void *)VAR_RADIUS},
2454 {"rad_alive", NULL, SetVariable, LOCAL_AUTH,
2455 "Raduis alive interval", "set rad_alive value",
2456 (const void *)VAR_RAD_ALIVE},
2457 {"rad_port_id", NULL, SetVariable, LOCAL_AUTH,
2458 "NAS-Port-Id", "set rad_port_id [default|pid|ifnum|tunnum]", (const void *)VAR_PORT_ID},
2459 #endif
2460 {"reconnect", NULL, datalink_SetReconnect, LOCAL_AUTH | LOCAL_CX,
2461 "Reconnect timeout", "set reconnect value ntries", NULL},
2462 {"recvpipe", NULL, SetVariable, LOCAL_AUTH,
2463 "RECVPIPE value", "set recvpipe value", (const void *)VAR_RECVPIPE},
2464 {"redial", NULL, datalink_SetRedial, LOCAL_AUTH | LOCAL_CX,
2465 "Redial timeout", "set redial secs[+inc[-incmax]][.next] [attempts]", NULL},
2466 {"sendpipe", NULL, SetVariable, LOCAL_AUTH,
2467 "SENDPIPE value", "set sendpipe value", (const void *)VAR_SENDPIPE},
2468 {"server", "socket", SetServer, LOCAL_AUTH, "diagnostic port",
2469 "set server|socket TcpPort|LocalName|none|open|closed [password [mask]]",
2470 NULL},
2471 {"speed", NULL, SetModemSpeed, LOCAL_AUTH | LOCAL_CX,
2472 "physical speed", "set speed value|sync", NULL},
2473 {"stopped", NULL, SetStoppedTimeout, LOCAL_AUTH | LOCAL_CX,
2474 "STOPPED timeouts", "set stopped [LCPseconds [CCPseconds]]", NULL},
2475 {"timeout", NULL, SetVariable, LOCAL_AUTH, "Idle timeout",
2476 "set timeout idletime", (const void *)VAR_IDLETIMEOUT},
2477 {"urgent", NULL, SetVariable, LOCAL_AUTH, "urgent traffic",
2478 "set urgent [[tcp|udp] [+|-]port...]|[length len]", (const void *)VAR_URGENT},
2479 {"vj", NULL, ipcp_vjset, LOCAL_AUTH,
2480 "vj values", "set vj slots|slotcomp [value]", NULL},
2481 {"help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH,
2482 "Display this message", "set help|? [command]", SetCommands},
2483 {"pppoe", NULL, SetVariable, LOCAL_AUTH | LOCAL_CX,
2484 "Connect using standard/3Com mode", "set pppoe [standard|3Com]",
2485 (const char *)VAR_PPPOE},
2486 {NULL, NULL, NULL, 0, NULL, NULL, NULL},
2487 };
2488
2489 static int
SetCommand(struct cmdargs const * arg)2490 SetCommand(struct cmdargs const *arg)
2491 {
2492 if (arg->argc > arg->argn)
2493 FindExec(arg->bundle, SetCommands, arg->argc, arg->argn, arg->argv,
2494 arg->prompt, arg->cx);
2495 else if (arg->prompt)
2496 prompt_Printf(arg->prompt, "Use `set ?' to get a list or `set ? <var>' for"
2497 " syntax help.\n");
2498 else
2499 log_Printf(LogWARN, "set command must have arguments\n");
2500
2501 return 0;
2502 }
2503
2504 static int
AddCommand(struct cmdargs const * arg)2505 AddCommand(struct cmdargs const *arg)
2506 {
2507 struct ncpaddr gw;
2508 struct ncprange dest;
2509 struct in_addr host;
2510 #ifndef NOINET6
2511 struct in6_addr host6;
2512 #endif
2513 int dest_default, gw_arg, addrs;
2514
2515 if (arg->argc != arg->argn+3 && arg->argc != arg->argn+2)
2516 return -1;
2517
2518 addrs = 0;
2519 dest_default = 0;
2520 if (arg->argc == arg->argn + 2) {
2521 if (!strcasecmp(arg->argv[arg->argn], "default"))
2522 dest_default = 1;
2523 else {
2524 if (!ncprange_aton(&dest, &arg->bundle->ncp, arg->argv[arg->argn]))
2525 return -1;
2526 if (!strncasecmp(arg->argv[arg->argn], "MYADDR", 6))
2527 addrs = ROUTE_DSTMYADDR;
2528 else if (!strncasecmp(arg->argv[arg->argn], "MYADDR6", 7))
2529 addrs = ROUTE_DSTMYADDR6;
2530 else if (!strncasecmp(arg->argv[arg->argn], "HISADDR", 7))
2531 addrs = ROUTE_DSTHISADDR;
2532 else if (!strncasecmp(arg->argv[arg->argn], "HISADDR6", 8))
2533 addrs = ROUTE_DSTHISADDR6;
2534 else if (!strncasecmp(arg->argv[arg->argn], "DNS0", 4))
2535 addrs = ROUTE_DSTDNS0;
2536 else if (!strncasecmp(arg->argv[arg->argn], "DNS1", 4))
2537 addrs = ROUTE_DSTDNS1;
2538 }
2539 gw_arg = 1;
2540 } else {
2541 if (strcasecmp(arg->argv[arg->argn], "MYADDR") == 0) {
2542 addrs = ROUTE_DSTMYADDR;
2543 host = arg->bundle->ncp.ipcp.my_ip;
2544 } else if (strcasecmp(arg->argv[arg->argn], "HISADDR") == 0) {
2545 addrs = ROUTE_DSTHISADDR;
2546 host = arg->bundle->ncp.ipcp.peer_ip;
2547 } else if (strcasecmp(arg->argv[arg->argn], "DNS0") == 0) {
2548 addrs = ROUTE_DSTDNS0;
2549 host = arg->bundle->ncp.ipcp.ns.dns[0];
2550 } else if (strcasecmp(arg->argv[arg->argn], "DNS1") == 0) {
2551 addrs = ROUTE_DSTDNS1;
2552 host = arg->bundle->ncp.ipcp.ns.dns[1];
2553 } else {
2554 host = GetIpAddr(arg->argv[arg->argn]);
2555 if (host.s_addr == INADDR_NONE) {
2556 log_Printf(LogWARN, "%s: Invalid destination address\n",
2557 arg->argv[arg->argn]);
2558 return -1;
2559 }
2560 }
2561 ncprange_setip4(&dest, host, GetIpAddr(arg->argv[arg->argn + 1]));
2562 gw_arg = 2;
2563 }
2564
2565 if (strcasecmp(arg->argv[arg->argn + gw_arg], "HISADDR") == 0) {
2566 ncpaddr_setip4(&gw, arg->bundle->ncp.ipcp.peer_ip);
2567 addrs |= ROUTE_GWHISADDR;
2568 #ifndef NOINET6
2569 } else if (strcasecmp(arg->argv[arg->argn + gw_arg], "HISADDR6") == 0) {
2570 if (!ncpaddr_getip6(&arg->bundle->ncp.ipv6cp.hisaddr, &host6))
2571 memset(&host6, '\0', sizeof host6);
2572 ncpaddr_setip6(&gw, &host6);
2573 addrs |= ROUTE_GWHISADDR6;
2574 #endif
2575 } else {
2576 if (!ncpaddr_aton(&gw, &arg->bundle->ncp, arg->argv[arg->argn + gw_arg])) {
2577 log_Printf(LogWARN, "%s: Invalid gateway address\n",
2578 arg->argv[arg->argn + gw_arg]);
2579 return -1;
2580 }
2581 }
2582
2583 if (dest_default)
2584 ncprange_setdefault(&dest, ncpaddr_family(&gw));
2585
2586 if (rt_Set(arg->bundle, RTM_ADD, &dest, &gw, arg->cmd->args ? 1 : 0,
2587 ((addrs & ROUTE_GWHISADDR) || (addrs & ROUTE_GWHISADDR6)) ? 1 : 0)
2588 && addrs != ROUTE_STATIC)
2589 route_Add(&arg->bundle->ncp.route, addrs, &dest, &gw);
2590
2591 return 0;
2592 }
2593
2594 static int
DeleteCommand(struct cmdargs const * arg)2595 DeleteCommand(struct cmdargs const *arg)
2596 {
2597 struct ncprange dest;
2598 int addrs;
2599
2600 if (arg->argc == arg->argn+1) {
2601 if(strcasecmp(arg->argv[arg->argn], "all") == 0) {
2602 route_IfDelete(arg->bundle, 0);
2603 route_DeleteAll(&arg->bundle->ncp.route);
2604 } else {
2605 addrs = 0;
2606 if (strcasecmp(arg->argv[arg->argn], "MYADDR") == 0) {
2607 ncprange_setip4host(&dest, arg->bundle->ncp.ipcp.my_ip);
2608 addrs = ROUTE_DSTMYADDR;
2609 #ifndef NOINET6
2610 } else if (strcasecmp(arg->argv[arg->argn], "MYADDR6") == 0) {
2611 ncprange_sethost(&dest, &arg->bundle->ncp.ipv6cp.myaddr);
2612 addrs = ROUTE_DSTMYADDR6;
2613 #endif
2614 } else if (strcasecmp(arg->argv[arg->argn], "HISADDR") == 0) {
2615 ncprange_setip4host(&dest, arg->bundle->ncp.ipcp.peer_ip);
2616 addrs = ROUTE_DSTHISADDR;
2617 #ifndef NOINET6
2618 } else if (strcasecmp(arg->argv[arg->argn], "HISADDR6") == 0) {
2619 ncprange_sethost(&dest, &arg->bundle->ncp.ipv6cp.hisaddr);
2620 addrs = ROUTE_DSTHISADDR6;
2621 #endif
2622 } else if (strcasecmp(arg->argv[arg->argn], "DNS0") == 0) {
2623 ncprange_setip4host(&dest, arg->bundle->ncp.ipcp.ns.dns[0]);
2624 addrs = ROUTE_DSTDNS0;
2625 } else if (strcasecmp(arg->argv[arg->argn], "DNS1") == 0) {
2626 ncprange_setip4host(&dest, arg->bundle->ncp.ipcp.ns.dns[1]);
2627 addrs = ROUTE_DSTDNS1;
2628 } else {
2629 ncprange_aton(&dest, &arg->bundle->ncp, arg->argv[arg->argn]);
2630 addrs = ROUTE_STATIC;
2631 }
2632 rt_Set(arg->bundle, RTM_DELETE, &dest, NULL, arg->cmd->args ? 1 : 0, 0);
2633 route_Delete(&arg->bundle->ncp.route, addrs, &dest);
2634 }
2635 } else
2636 return -1;
2637
2638 return 0;
2639 }
2640
2641 #ifndef NONAT
2642 static int
NatEnable(struct cmdargs const * arg)2643 NatEnable(struct cmdargs const *arg)
2644 {
2645 if (arg->argc == arg->argn+1) {
2646 if (strcasecmp(arg->argv[arg->argn], "yes") == 0) {
2647 if (!arg->bundle->NatEnabled) {
2648 if (arg->bundle->ncp.ipcp.fsm.state == ST_OPENED)
2649 LibAliasSetAddress(la, arg->bundle->ncp.ipcp.my_ip);
2650 arg->bundle->NatEnabled = 1;
2651 }
2652 return 0;
2653 } else if (strcasecmp(arg->argv[arg->argn], "no") == 0) {
2654 arg->bundle->NatEnabled = 0;
2655 opt_disable(arg->bundle, OPT_IFACEALIAS);
2656 /* Don't iface_Clear() - there may be manually configured addresses */
2657 return 0;
2658 }
2659 }
2660
2661 return -1;
2662 }
2663
2664
2665 static int
NatOption(struct cmdargs const * arg)2666 NatOption(struct cmdargs const *arg)
2667 {
2668 long param = (long)arg->cmd->args;
2669
2670 if (arg->argc == arg->argn+1) {
2671 if (strcasecmp(arg->argv[arg->argn], "yes") == 0) {
2672 if (arg->bundle->NatEnabled) {
2673 LibAliasSetMode(la, param, param);
2674 return 0;
2675 }
2676 log_Printf(LogWARN, "nat not enabled\n");
2677 } else if (strcmp(arg->argv[arg->argn], "no") == 0) {
2678 if (arg->bundle->NatEnabled) {
2679 LibAliasSetMode(la, 0, param);
2680 return 0;
2681 }
2682 log_Printf(LogWARN, "nat not enabled\n");
2683 }
2684 }
2685 return -1;
2686 }
2687 #endif /* #ifndef NONAT */
2688
2689 static int
LinkCommand(struct cmdargs const * arg)2690 LinkCommand(struct cmdargs const *arg)
2691 {
2692 if (arg->argc > arg->argn+1) {
2693 char namelist[LINE_LEN];
2694 struct datalink *cx;
2695 char *name;
2696 int result = 0;
2697
2698 if (!strcmp(arg->argv[arg->argn], "*")) {
2699 struct datalink *dl;
2700
2701 cx = arg->bundle->links;
2702 while (cx) {
2703 /* Watch it, the command could be a ``remove'' */
2704 dl = cx->next;
2705 FindExec(arg->bundle, Commands, arg->argc, arg->argn+1, arg->argv,
2706 arg->prompt, cx);
2707 for (cx = arg->bundle->links; cx; cx = cx->next)
2708 if (cx == dl)
2709 break; /* Pointer's still valid ! */
2710 }
2711 } else {
2712 strncpy(namelist, arg->argv[arg->argn], sizeof namelist - 1);
2713 namelist[sizeof namelist - 1] = '\0';
2714 for(name = strtok(namelist, ", "); name; name = strtok(NULL,", "))
2715 if (!bundle2datalink(arg->bundle, name)) {
2716 log_Printf(LogWARN, "link: %s: Invalid link name\n", name);
2717 return 1;
2718 }
2719
2720 strncpy(namelist, arg->argv[arg->argn], sizeof namelist - 1);
2721 namelist[sizeof namelist - 1] = '\0';
2722 for(name = strtok(namelist, ", "); name; name = strtok(NULL,", ")) {
2723 cx = bundle2datalink(arg->bundle, name);
2724 if (cx)
2725 FindExec(arg->bundle, Commands, arg->argc, arg->argn+1, arg->argv,
2726 arg->prompt, cx);
2727 else {
2728 log_Printf(LogWARN, "link: %s: Invalidated link name !\n", name);
2729 result++;
2730 }
2731 }
2732 }
2733 return result;
2734 }
2735
2736 log_Printf(LogWARN, "usage: %s\n", arg->cmd->syntax);
2737 return 2;
2738 }
2739
2740 struct link *
command_ChooseLink(struct cmdargs const * arg)2741 command_ChooseLink(struct cmdargs const *arg)
2742 {
2743 if (arg->cx)
2744 return &arg->cx->physical->link;
2745 else if (!arg->bundle->ncp.mp.cfg.mrru) {
2746 struct datalink *dl = bundle2datalink(arg->bundle, NULL);
2747 if (dl)
2748 return &dl->physical->link;
2749 }
2750 return &arg->bundle->ncp.mp.link;
2751 }
2752
2753 static const char *
ident_cmd(const char * cmd,unsigned * keep,unsigned * add)2754 ident_cmd(const char *cmd, unsigned *keep, unsigned *add)
2755 {
2756 const char *result;
2757
2758 switch (*cmd) {
2759 case 'A':
2760 case 'a':
2761 result = "accept";
2762 *keep = NEG_MYMASK;
2763 *add = NEG_ACCEPTED;
2764 break;
2765 case 'D':
2766 case 'd':
2767 switch (cmd[1]) {
2768 case 'E':
2769 case 'e':
2770 result = "deny";
2771 *keep = NEG_MYMASK;
2772 *add = 0;
2773 break;
2774 case 'I':
2775 case 'i':
2776 result = "disable";
2777 *keep = NEG_HISMASK;
2778 *add = 0;
2779 break;
2780 default:
2781 return NULL;
2782 }
2783 break;
2784 case 'E':
2785 case 'e':
2786 result = "enable";
2787 *keep = NEG_HISMASK;
2788 *add = NEG_ENABLED;
2789 break;
2790 default:
2791 return NULL;
2792 }
2793
2794 return result;
2795 }
2796
2797 static int
OptSet(struct cmdargs const * arg)2798 OptSet(struct cmdargs const *arg)
2799 {
2800 int opt = (int)(long)arg->cmd->args;
2801 unsigned keep; /* Keep this opt */
2802 unsigned add; /* Add this opt */
2803
2804 if (ident_cmd(arg->argv[arg->argn - 2], &keep, &add) == NULL)
2805 return 1;
2806
2807 #ifndef NOINET6
2808 if (add == NEG_ENABLED && opt == OPT_IPV6CP && !probe.ipv6_available) {
2809 log_Printf(LogWARN, "IPv6 is not available on this machine\n");
2810 return 1;
2811 }
2812 #endif
2813 if (!add && ((opt == OPT_NAS_IP_ADDRESS &&
2814 !Enabled(arg->bundle, OPT_NAS_IDENTIFIER)) ||
2815 (opt == OPT_NAS_IDENTIFIER &&
2816 !Enabled(arg->bundle, OPT_NAS_IP_ADDRESS)))) {
2817 log_Printf(LogWARN,
2818 "Cannot disable both NAS-IP-Address and NAS-Identifier\n");
2819 return 1;
2820 }
2821
2822 if (add)
2823 opt_enable(arg->bundle, opt);
2824 else
2825 opt_disable(arg->bundle, opt);
2826
2827 return 0;
2828 }
2829
2830 static int
IfaceAliasOptSet(struct cmdargs const * arg)2831 IfaceAliasOptSet(struct cmdargs const *arg)
2832 {
2833 unsigned long long save = arg->bundle->cfg.optmask;
2834 int result = OptSet(arg);
2835
2836 if (result == 0)
2837 if (Enabled(arg->bundle, OPT_IFACEALIAS) && !arg->bundle->NatEnabled) {
2838 arg->bundle->cfg.optmask = save;
2839 log_Printf(LogWARN, "Cannot enable iface-alias without NAT\n");
2840 result = 2;
2841 }
2842
2843 return result;
2844 }
2845
2846 static int
NegotiateSet(struct cmdargs const * arg)2847 NegotiateSet(struct cmdargs const *arg)
2848 {
2849 long param = (long)arg->cmd->args;
2850 struct link *l = command_ChooseLink(arg); /* LOCAL_CX_OPT uses this */
2851 struct datalink *cx = arg->cx; /* LOCAL_CX uses this */
2852 const char *cmd;
2853 unsigned keep; /* Keep these bits */
2854 unsigned add; /* Add these bits */
2855
2856 if ((cmd = ident_cmd(arg->argv[arg->argn-2], &keep, &add)) == NULL)
2857 return 1;
2858
2859 if ((arg->cmd->lauth & LOCAL_CX) && !cx) {
2860 log_Printf(LogWARN, "%s %s: No context (use the `link' command)\n",
2861 cmd, arg->cmd->name);
2862 return 2;
2863 } else if (cx && !(arg->cmd->lauth & (LOCAL_CX|LOCAL_CX_OPT))) {
2864 log_Printf(LogWARN, "%s %s: Redundant context (%s) ignored\n",
2865 cmd, arg->cmd->name, cx->name);
2866 cx = NULL;
2867 }
2868
2869 switch (param) {
2870 case NEG_ACFCOMP:
2871 cx->physical->link.lcp.cfg.acfcomp &= keep;
2872 cx->physical->link.lcp.cfg.acfcomp |= add;
2873 break;
2874 case NEG_CHAP05:
2875 cx->physical->link.lcp.cfg.chap05 &= keep;
2876 cx->physical->link.lcp.cfg.chap05 |= add;
2877 break;
2878 #ifndef NODES
2879 case NEG_CHAP80:
2880 cx->physical->link.lcp.cfg.chap80nt &= keep;
2881 cx->physical->link.lcp.cfg.chap80nt |= add;
2882 break;
2883 case NEG_CHAP80LM:
2884 cx->physical->link.lcp.cfg.chap80lm &= keep;
2885 cx->physical->link.lcp.cfg.chap80lm |= add;
2886 break;
2887 case NEG_CHAP81:
2888 cx->physical->link.lcp.cfg.chap81 &= keep;
2889 cx->physical->link.lcp.cfg.chap81 |= add;
2890 break;
2891 case NEG_MPPE:
2892 l->ccp.cfg.neg[CCP_NEG_MPPE] &= keep;
2893 l->ccp.cfg.neg[CCP_NEG_MPPE] |= add;
2894 break;
2895 #endif
2896 case NEG_DEFLATE:
2897 l->ccp.cfg.neg[CCP_NEG_DEFLATE] &= keep;
2898 l->ccp.cfg.neg[CCP_NEG_DEFLATE] |= add;
2899 break;
2900 case NEG_DNS:
2901 arg->bundle->ncp.ipcp.cfg.ns.dns_neg &= keep;
2902 arg->bundle->ncp.ipcp.cfg.ns.dns_neg |= add;
2903 break;
2904 case NEG_ECHO: /* probably misplaced in this function ! */
2905 if (cx->physical->link.lcp.cfg.echo && !add) {
2906 cx->physical->link.lcp.cfg.echo = 0;
2907 cx->physical->hdlc.lqm.method &= ~LQM_ECHO;
2908 if (cx->physical->hdlc.lqm.method & LQM_ECHO &&
2909 !cx->physical->link.lcp.want_lqrperiod &&
2910 cx->physical->hdlc.lqm.timer.load) {
2911 cx->physical->hdlc.lqm.timer.load = 0;
2912 lqr_StopTimer(cx->physical);
2913 }
2914 } else if (!cx->physical->link.lcp.cfg.echo && add) {
2915 cx->physical->link.lcp.cfg.echo = 1;
2916 cx->physical->hdlc.lqm.method |= LQM_ECHO;
2917 cx->physical->hdlc.lqm.timer.load =
2918 cx->physical->link.lcp.cfg.lqrperiod * SECTICKS;
2919 if (cx->physical->link.lcp.fsm.state == ST_OPENED)
2920 (*cx->physical->hdlc.lqm.timer.func)(&cx->physical->link.lcp);
2921 }
2922 break;
2923 case NEG_ENDDISC:
2924 arg->bundle->ncp.mp.cfg.negenddisc &= keep;
2925 arg->bundle->ncp.mp.cfg.negenddisc |= add;
2926 break;
2927 case NEG_LQR:
2928 cx->physical->link.lcp.cfg.lqr &= keep;
2929 cx->physical->link.lcp.cfg.lqr |= add;
2930 break;
2931 case NEG_PAP:
2932 cx->physical->link.lcp.cfg.pap &= keep;
2933 cx->physical->link.lcp.cfg.pap |= add;
2934 break;
2935 case NEG_PPPDDEFLATE:
2936 l->ccp.cfg.neg[CCP_NEG_DEFLATE24] &= keep;
2937 l->ccp.cfg.neg[CCP_NEG_DEFLATE24] |= add;
2938 break;
2939 case NEG_PRED1:
2940 l->ccp.cfg.neg[CCP_NEG_PRED1] &= keep;
2941 l->ccp.cfg.neg[CCP_NEG_PRED1] |= add;
2942 break;
2943 case NEG_PROTOCOMP:
2944 cx->physical->link.lcp.cfg.protocomp &= keep;
2945 cx->physical->link.lcp.cfg.protocomp |= add;
2946 break;
2947 case NEG_SHORTSEQ:
2948 switch (bundle_Phase(arg->bundle)) {
2949 case PHASE_DEAD:
2950 break;
2951 case PHASE_ESTABLISH:
2952 /* Make sure none of our links are DATALINK_LCP or greater */
2953 if (bundle_HighestState(arg->bundle) >= DATALINK_LCP) {
2954 log_Printf(LogWARN, "shortseq: Only changeable before"
2955 " LCP negotiations\n");
2956 return 1;
2957 }
2958 break;
2959 default:
2960 log_Printf(LogWARN, "shortseq: Only changeable at phase"
2961 " DEAD/ESTABLISH\n");
2962 return 1;
2963 }
2964 arg->bundle->ncp.mp.cfg.shortseq &= keep;
2965 arg->bundle->ncp.mp.cfg.shortseq |= add;
2966 break;
2967 case NEG_VJCOMP:
2968 arg->bundle->ncp.ipcp.cfg.vj.neg &= keep;
2969 arg->bundle->ncp.ipcp.cfg.vj.neg |= add;
2970 break;
2971 }
2972
2973 return 0;
2974 }
2975
2976 static struct cmdtab const NegotiateCommands[] = {
2977 {"echo", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX, "Send echo requests",
2978 "disable|enable", (const void *)NEG_ECHO},
2979 {"filter-decapsulation", NULL, OptSet, LOCAL_AUTH,
2980 "filter on PPPoUDP payloads", "disable|enable",
2981 (const void *)OPT_FILTERDECAP},
2982 {"force-scripts", NULL, OptSet, LOCAL_AUTH,
2983 "Force execution of the configured chat scripts", "disable|enable",
2984 (const void *)OPT_FORCE_SCRIPTS},
2985 {"idcheck", NULL, OptSet, LOCAL_AUTH, "Check FSM reply ids",
2986 "disable|enable", (const void *)OPT_IDCHECK},
2987 {"iface-alias", NULL, IfaceAliasOptSet, LOCAL_AUTH,
2988 "retain interface addresses", "disable|enable",
2989 (const void *)OPT_IFACEALIAS},
2990 #ifndef NOINET6
2991 {"ipcp", NULL, OptSet, LOCAL_AUTH, "IP Network Control Protocol",
2992 "disable|enable", (const void *)OPT_IPCP},
2993 {"ipv6cp", NULL, OptSet, LOCAL_AUTH, "IPv6 Network Control Protocol",
2994 "disable|enable", (const void *)OPT_IPV6CP},
2995 #endif
2996 {"keep-session", NULL, OptSet, LOCAL_AUTH, "Retain device session leader",
2997 "disable|enable", (const void *)OPT_KEEPSESSION},
2998 {"loopback", NULL, OptSet, LOCAL_AUTH, "Loop packets for local iface",
2999 "disable|enable", (const void *)OPT_LOOPBACK},
3000 {"nas-ip-address", NULL, OptSet, LOCAL_AUTH, "Send NAS-IP-Address to RADIUS",
3001 "disable|enable", (const void *)OPT_NAS_IP_ADDRESS},
3002 {"nas-identifier", NULL, OptSet, LOCAL_AUTH, "Send NAS-Identifier to RADIUS",
3003 "disable|enable", (const void *)OPT_NAS_IDENTIFIER},
3004 {"passwdauth", NULL, OptSet, LOCAL_AUTH, "Use passwd file",
3005 "disable|enable", (const void *)OPT_PASSWDAUTH},
3006 {"proxy", NULL, OptSet, LOCAL_AUTH, "Create a proxy ARP entry",
3007 "disable|enable", (const void *)OPT_PROXY},
3008 {"proxyall", NULL, OptSet, LOCAL_AUTH, "Proxy ARP for all remote hosts",
3009 "disable|enable", (const void *)OPT_PROXYALL},
3010 {"sroutes", NULL, OptSet, LOCAL_AUTH, "Use sticky routes",
3011 "disable|enable", (const void *)OPT_SROUTES},
3012 {"tcpmssfixup", "mssfixup", OptSet, LOCAL_AUTH, "Modify MSS options",
3013 "disable|enable", (const void *)OPT_TCPMSSFIXUP},
3014 {"throughput", NULL, OptSet, LOCAL_AUTH, "Rolling throughput",
3015 "disable|enable", (const void *)OPT_THROUGHPUT},
3016 {"utmp", NULL, OptSet, LOCAL_AUTH, "Log connections in utmp",
3017 "disable|enable", (const void *)OPT_UTMP},
3018
3019 #ifndef NOINET6
3020 #define NEG_OPT_MAX 17 /* accept/deny allowed below and not above */
3021 #else
3022 #define NEG_OPT_MAX 15
3023 #endif
3024
3025 {"acfcomp", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX,
3026 "Address & Control field compression", "accept|deny|disable|enable",
3027 (const void *)NEG_ACFCOMP},
3028 {"chap", "chap05", NegotiateSet, LOCAL_AUTH | LOCAL_CX,
3029 "Challenge Handshake Authentication Protocol", "accept|deny|disable|enable",
3030 (const void *)NEG_CHAP05},
3031 #ifndef NODES
3032 {"mschap", "chap80nt", NegotiateSet, LOCAL_AUTH | LOCAL_CX,
3033 "Microsoft (NT) CHAP", "accept|deny|disable|enable",
3034 (const void *)NEG_CHAP80},
3035 {"LANMan", "chap80lm", NegotiateSet, LOCAL_AUTH | LOCAL_CX,
3036 "Microsoft (NT) CHAP", "accept|deny|disable|enable",
3037 (const void *)NEG_CHAP80LM},
3038 {"mschapv2", "chap81", NegotiateSet, LOCAL_AUTH | LOCAL_CX,
3039 "Microsoft CHAP v2", "accept|deny|disable|enable",
3040 (const void *)NEG_CHAP81},
3041 {"mppe", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX_OPT,
3042 "MPPE encryption", "accept|deny|disable|enable",
3043 (const void *)NEG_MPPE},
3044 #endif
3045 {"deflate", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX_OPT,
3046 "Deflate compression", "accept|deny|disable|enable",
3047 (const void *)NEG_DEFLATE},
3048 {"deflate24", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX_OPT,
3049 "Deflate (type 24) compression", "accept|deny|disable|enable",
3050 (const void *)NEG_PPPDDEFLATE},
3051 {"dns", NULL, NegotiateSet, LOCAL_AUTH,
3052 "DNS specification", "accept|deny|disable|enable", (const void *)NEG_DNS},
3053 {"enddisc", NULL, NegotiateSet, LOCAL_AUTH, "ENDDISC negotiation",
3054 "accept|deny|disable|enable", (const void *)NEG_ENDDISC},
3055 {"lqr", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX,
3056 "Link Quality Reports", "accept|deny|disable|enable",
3057 (const void *)NEG_LQR},
3058 {"pap", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX,
3059 "Password Authentication protocol", "accept|deny|disable|enable",
3060 (const void *)NEG_PAP},
3061 {"pred1", "predictor1", NegotiateSet, LOCAL_AUTH | LOCAL_CX_OPT,
3062 "Predictor 1 compression", "accept|deny|disable|enable",
3063 (const void *)NEG_PRED1},
3064 {"protocomp", NULL, NegotiateSet, LOCAL_AUTH | LOCAL_CX,
3065 "Protocol field compression", "accept|deny|disable|enable",
3066 (const void *)NEG_PROTOCOMP},
3067 {"shortseq", NULL, NegotiateSet, LOCAL_AUTH,
3068 "MP Short Sequence Numbers", "accept|deny|disable|enable",
3069 (const void *)NEG_SHORTSEQ},
3070 {"vjcomp", NULL, NegotiateSet, LOCAL_AUTH,
3071 "Van Jacobson header compression", "accept|deny|disable|enable",
3072 (const void *)NEG_VJCOMP},
3073 {"help", "?", HelpCommand, LOCAL_AUTH | LOCAL_NO_AUTH,
3074 "Display this message", "accept|deny|disable|enable help|? [value]",
3075 NegotiateCommands},
3076 {NULL, NULL, NULL, 0, NULL, NULL, NULL},
3077 };
3078
3079 static int
NegotiateCommand(struct cmdargs const * arg)3080 NegotiateCommand(struct cmdargs const *arg)
3081 {
3082 if (arg->argc > arg->argn) {
3083 char const *argv[3];
3084 unsigned keep, add;
3085 int n;
3086
3087 if ((argv[0] = ident_cmd(arg->argv[arg->argn-1], &keep, &add)) == NULL)
3088 return -1;
3089 argv[2] = NULL;
3090
3091 for (n = arg->argn; n < arg->argc; n++) {
3092 argv[1] = arg->argv[n];
3093 FindExec(arg->bundle, NegotiateCommands + (keep == NEG_HISMASK ?
3094 0 : NEG_OPT_MAX), 2, 1, argv, arg->prompt, arg->cx);
3095 }
3096 } else if (arg->prompt)
3097 prompt_Printf(arg->prompt, "Use `%s ?' to get a list.\n",
3098 arg->argv[arg->argn-1]);
3099 else
3100 log_Printf(LogWARN, "%s command must have arguments\n",
3101 arg->argv[arg->argn] );
3102
3103 return 0;
3104 }
3105
3106 const char *
command_ShowNegval(unsigned val)3107 command_ShowNegval(unsigned val)
3108 {
3109 switch (val&3) {
3110 case 1: return "disabled & accepted";
3111 case 2: return "enabled & denied";
3112 case 3: return "enabled & accepted";
3113 }
3114 return "disabled & denied";
3115 }
3116
3117 static int
ClearCommand(struct cmdargs const * arg)3118 ClearCommand(struct cmdargs const *arg)
3119 {
3120 struct pppThroughput *t;
3121 struct datalink *cx;
3122 int i, clear_type;
3123
3124 if (arg->argc < arg->argn + 1)
3125 return -1;
3126
3127 if (strcasecmp(arg->argv[arg->argn], "physical") == 0) {
3128 cx = arg->cx;
3129 if (!cx)
3130 cx = bundle2datalink(arg->bundle, NULL);
3131 if (!cx) {
3132 log_Printf(LogWARN, "A link must be specified for ``clear physical''\n");
3133 return 1;
3134 }
3135 t = &cx->physical->link.stats.total;
3136 } else if (strcasecmp(arg->argv[arg->argn], "ipcp") == 0)
3137 t = &arg->bundle->ncp.ipcp.throughput;
3138 #ifndef NOINET6
3139 else if (strcasecmp(arg->argv[arg->argn], "ipv6cp") == 0)
3140 t = &arg->bundle->ncp.ipv6cp.throughput;
3141 #endif
3142 else
3143 return -1;
3144
3145 if (arg->argc > arg->argn + 1) {
3146 clear_type = 0;
3147 for (i = arg->argn + 1; i < arg->argc; i++)
3148 if (strcasecmp(arg->argv[i], "overall") == 0)
3149 clear_type |= THROUGHPUT_OVERALL;
3150 else if (strcasecmp(arg->argv[i], "current") == 0)
3151 clear_type |= THROUGHPUT_CURRENT;
3152 else if (strcasecmp(arg->argv[i], "peak") == 0)
3153 clear_type |= THROUGHPUT_PEAK;
3154 else
3155 return -1;
3156 } else
3157 clear_type = THROUGHPUT_ALL;
3158
3159 throughput_clear(t, clear_type, arg->prompt);
3160 return 0;
3161 }
3162
3163 static int
RunListCommand(struct cmdargs const * arg)3164 RunListCommand(struct cmdargs const *arg)
3165 {
3166 const char *cmd = arg->argc ? arg->argv[arg->argc - 1] : "???";
3167
3168 #ifndef NONAT
3169 if (arg->cmd->args == NatCommands &&
3170 tolower(*arg->argv[arg->argn - 1]) == 'a') {
3171 if (arg->prompt)
3172 prompt_Printf(arg->prompt, "The alias command is deprecated\n");
3173 else
3174 log_Printf(LogWARN, "The alias command is deprecated\n");
3175 }
3176 #endif
3177
3178 if (arg->argc > arg->argn)
3179 FindExec(arg->bundle, arg->cmd->args, arg->argc, arg->argn, arg->argv,
3180 arg->prompt, arg->cx);
3181 else if (arg->prompt)
3182 prompt_Printf(arg->prompt, "Use `%s help' to get a list or `%s help"
3183 " <option>' for syntax help.\n", cmd, cmd);
3184 else
3185 log_Printf(LogWARN, "%s command must have arguments\n", cmd);
3186
3187 return 0;
3188 }
3189
3190 static int
IfaceNameCommand(struct cmdargs const * arg)3191 IfaceNameCommand(struct cmdargs const *arg)
3192 {
3193 int n = arg->argn;
3194
3195 if (arg->argc != n + 1)
3196 return -1;
3197
3198 if (!iface_Name(arg->bundle->iface, arg->argv[n]))
3199 return 1;
3200
3201 log_SetTun(arg->bundle->unit, arg->bundle->iface->name);
3202 return 0;
3203 }
3204
3205 static int
IfaceAddCommand(struct cmdargs const * arg)3206 IfaceAddCommand(struct cmdargs const *arg)
3207 {
3208 struct ncpaddr peer, addr;
3209 struct ncprange ifa;
3210 struct in_addr mask;
3211 int n, how;
3212
3213 if (arg->argc == arg->argn + 1) {
3214 if (!ncprange_aton(&ifa, NULL, arg->argv[arg->argn]))
3215 return -1;
3216 ncpaddr_init(&peer);
3217 } else {
3218 if (arg->argc == arg->argn + 2) {
3219 if (!ncprange_aton(&ifa, NULL, arg->argv[arg->argn]))
3220 return -1;
3221 n = 1;
3222 } else if (arg->argc == arg->argn + 3) {
3223 if (!ncpaddr_aton(&addr, NULL, arg->argv[arg->argn]))
3224 return -1;
3225 if (ncpaddr_family(&addr) != AF_INET)
3226 return -1;
3227 ncprange_sethost(&ifa, &addr);
3228 if (!ncpaddr_aton(&addr, NULL, arg->argv[arg->argn + 1]))
3229 return -1;
3230 if (!ncpaddr_getip4(&addr, &mask))
3231 return -1;
3232 if (!ncprange_setip4mask(&ifa, mask))
3233 return -1;
3234 n = 2;
3235 } else
3236 return -1;
3237
3238 if (!ncpaddr_aton(&peer, NULL, arg->argv[arg->argn + n]))
3239 return -1;
3240
3241 if (ncprange_family(&ifa) != ncpaddr_family(&peer)) {
3242 log_Printf(LogWARN, "IfaceAddCommand: src and dst address families"
3243 " differ\n");
3244 return -1;
3245 }
3246 }
3247
3248 how = IFACE_ADD_LAST;
3249 if (arg->cmd->args)
3250 how |= IFACE_FORCE_ADD;
3251
3252 return !iface_Add(arg->bundle->iface, &arg->bundle->ncp, &ifa, &peer, how);
3253 }
3254
3255 static int
IfaceDeleteCommand(struct cmdargs const * arg)3256 IfaceDeleteCommand(struct cmdargs const *arg)
3257 {
3258 struct ncpaddr ifa;
3259 struct in_addr ifa4;
3260 int ok;
3261
3262 if (arg->argc != arg->argn + 1)
3263 return -1;
3264
3265 if (!ncpaddr_aton(&ifa, NULL, arg->argv[arg->argn]))
3266 return -1;
3267
3268 if (arg->bundle->ncp.ipcp.fsm.state == ST_OPENED &&
3269 ncpaddr_getip4(&ifa, &ifa4) &&
3270 arg->bundle->ncp.ipcp.my_ip.s_addr == ifa4.s_addr) {
3271 log_Printf(LogWARN, "%s: Cannot remove active interface address\n",
3272 ncpaddr_ntoa(&ifa));
3273 return 1;
3274 }
3275
3276 ok = iface_Delete(arg->bundle->iface, &arg->bundle->ncp, &ifa);
3277 if (!ok) {
3278 if (arg->cmd->args)
3279 ok = 1;
3280 else if (arg->prompt)
3281 prompt_Printf(arg->prompt, "%s: No such interface address\n",
3282 ncpaddr_ntoa(&ifa));
3283 else
3284 log_Printf(LogWARN, "%s: No such interface address\n",
3285 ncpaddr_ntoa(&ifa));
3286 }
3287
3288 return !ok;
3289 }
3290
3291 static int
IfaceClearCommand(struct cmdargs const * arg)3292 IfaceClearCommand(struct cmdargs const *arg)
3293 {
3294 int family, how;
3295
3296 family = 0;
3297 if (arg->argc == arg->argn + 1) {
3298 if (strcasecmp(arg->argv[arg->argn], "inet") == 0)
3299 family = AF_INET;
3300 #ifndef NOINET6
3301 else if (strcasecmp(arg->argv[arg->argn], "inet6") == 0)
3302 family = AF_INET6;
3303 #endif
3304 else
3305 return -1;
3306 } else if (arg->argc != arg->argn)
3307 return -1;
3308
3309 how = arg->bundle->ncp.ipcp.fsm.state == ST_OPENED ||
3310 arg->bundle->phys_type.all & PHYS_AUTO ?
3311 IFACE_CLEAR_ALIASES : IFACE_CLEAR_ALL;
3312 iface_Clear(arg->bundle->iface, &arg->bundle->ncp, family, how);
3313
3314 return 0;
3315 }
3316
3317 static int
SetProcTitle(struct cmdargs const * arg)3318 SetProcTitle(struct cmdargs const *arg)
3319 {
3320 static char title[LINE_LEN];
3321 char *argv[MAXARGS];
3322 int argc = arg->argc - arg->argn;
3323
3324 if (arg->argc <= arg->argn) {
3325 SetTitle(NULL);
3326 return 0;
3327 }
3328
3329 if ((unsigned)argc >= sizeof argv / sizeof argv[0]) {
3330 argc = sizeof argv / sizeof argv[0] - 1;
3331 log_Printf(LogWARN, "Truncating proc title to %d args\n", argc);
3332 }
3333 command_Expand(argv, argc, arg->argv + arg->argn, arg->bundle, 1, getpid());
3334 Concatinate(title, sizeof title, argc, (const char *const *)argv);
3335 SetTitle(title);
3336 command_Free(argc, argv);
3337
3338 return 0;
3339 }
3340