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